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[ar7] refresh 2.6.32 patches
[openwrt.git] / target / linux / omap35xx / patches-2.6.32 / 001-DSS2.patch
1 --- /dev/null
2 +++ b/Documentation/arm/OMAP/DSS
3 @@ -0,0 +1,317 @@
4 +OMAP2/3 Display Subsystem
5 +-------------------------
6 +
7 +This is an almost total rewrite of the OMAP FB driver in drivers/video/omap
8 +(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI,
9 +TV-out and multiple display support, but there are lots of small improvements
10 +also.
11 +
12 +The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB,
13 +panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live
14 +currently side by side, you can choose which one to use.
15 +
16 +Features
17 +--------
18 +
19 +Working and tested features include:
20 +
21 +- MIPI DPI (parallel) output
22 +- MIPI DSI output in command mode
23 +- MIPI DBI (RFBI) output
24 +- SDI output
25 +- TV output
26 +- All pieces can be compiled as a module or inside kernel
27 +- Use DISPC to update any of the outputs
28 +- Use CPU to update RFBI or DSI output
29 +- OMAP DISPC planes
30 +- RGB16, RGB24 packed, RGB24 unpacked
31 +- YUV2, UYVY
32 +- Scaling
33 +- Adjusting DSS FCK to find a good pixel clock
34 +- Use DSI DPLL to create DSS FCK
35 +
36 +Tested boards include:
37 +- OMAP3 SDP board
38 +- Beagle board
39 +- N810
40 +
41 +omapdss driver
42 +--------------
43 +
44 +The DSS driver does not itself have any support for Linux framebuffer, V4L or
45 +such like the current ones, but it has an internal kernel API that upper level
46 +drivers can use.
47 +
48 +The DSS driver models OMAP's overlays, overlay managers and displays in a
49 +flexible way to enable non-common multi-display configuration. In addition to
50 +modelling the hardware overlays, omapdss supports virtual overlays and overlay
51 +managers. These can be used when updating a display with CPU or system DMA.
52 +
53 +Panel and controller drivers
54 +----------------------------
55 +
56 +The drivers implement panel or controller specific functionality and are not
57 +usually visible to users except through omapfb driver. They register
58 +themselves to the DSS driver.
59 +
60 +omapfb driver
61 +-------------
62 +
63 +The omapfb driver implements arbitrary number of standard linux framebuffers.
64 +These framebuffers can be routed flexibly to any overlays, thus allowing very
65 +dynamic display architecture.
66 +
67 +The driver exports some omapfb specific ioctls, which are compatible with the
68 +ioctls in the old driver.
69 +
70 +The rest of the non standard features are exported via sysfs. Whether the final
71 +implementation will use sysfs, or ioctls, is still open.
72 +
73 +V4L2 drivers
74 +------------
75 +
76 +V4L2 is being implemented in TI.
77 +
78 +From omapdss point of view the V4L2 drivers should be similar to framebuffer
79 +driver.
80 +
81 +Architecture
82 +--------------------
83 +
84 +Some clarification what the different components do:
85 +
86 + - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the
87 + pixel data for the image. Framebuffer has width and height and color
88 + depth.
89 + - Overlay defines where the pixels are read from and where they go on the
90 + screen. The overlay may be smaller than framebuffer, thus displaying only
91 + part of the framebuffer. The position of the overlay may be changed if
92 + the overlay is smaller than the display.
93 + - Overlay manager combines the overlays in to one image and feeds them to
94 + display.
95 + - Display is the actual physical display device.
96 +
97 +A framebuffer can be connected to multiple overlays to show the same pixel data
98 +on all of the overlays. Note that in this case the overlay input sizes must be
99 +the same, but, in case of video overlays, the output size can be different. Any
100 +framebuffer can be connected to any overlay.
101 +
102 +An overlay can be connected to one overlay manager. Also DISPC overlays can be
103 +connected only to DISPC overlay managers, and virtual overlays can be only
104 +connected to virtual overlays.
105 +
106 +An overlay manager can be connected to one display. There are certain
107 +restrictions which kinds of displays an overlay manager can be connected:
108 +
109 + - DISPC TV overlay manager can be only connected to TV display.
110 + - Virtual overlay managers can only be connected to DBI or DSI displays.
111 + - DISPC LCD overlay manager can be connected to all displays, except TV
112 + display.
113 +
114 +Sysfs
115 +-----
116 +The sysfs interface is mainly used for testing. I don't think sysfs
117 +interface is the best for this in the final version, but I don't quite know
118 +what would be the best interfaces for these things.
119 +
120 +The sysfs interface is divided to two parts: DSS and FB.
121 +
122 +/sys/class/graphics/fb? directory:
123 +mirror 0=off, 1=on
124 +rotate Rotation 0-3 for 0, 90, 180, 270 degrees
125 +rotate_type 0 = DMA rotation, 1 = VRFB rotation
126 +overlays List of overlay numbers to which framebuffer pixels go
127 +phys_addr Physical address of the framebuffer
128 +virt_addr Virtual address of the framebuffer
129 +size Size of the framebuffer
130 +
131 +/sys/devices/platform/omapdss/overlay? directory:
132 +enabled 0=off, 1=on
133 +input_size width,height (ie. the framebuffer size)
134 +manager Destination overlay manager name
135 +name
136 +output_size width,height
137 +position x,y
138 +screen_width width
139 +global_alpha global alpha 0-255 0=transparent 255=opaque
140 +
141 +/sys/devices/platform/omapdss/manager? directory:
142 +display Destination display
143 +name
144 +alpha_blending_enabled 0=off, 1=on
145 +trans_key_enabled 0=off, 1=on
146 +trans_key_type gfx-destination, video-source
147 +trans_key_value transparency color key (RGB24)
148 +default_color default background color (RGB24)
149 +
150 +/sys/devices/platform/omapdss/display? directory:
151 +ctrl_name Controller name
152 +mirror 0=off, 1=on
153 +update_mode 0=off, 1=auto, 2=manual
154 +enabled 0=off, 1=on
155 +name
156 +rotate Rotation 0-3 for 0, 90, 180, 270 degrees
157 +timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw)
158 + When writing, two special timings are accepted for tv-out:
159 + "pal" and "ntsc"
160 +panel_name
161 +tear_elim Tearing elimination 0=off, 1=on
162 +
163 +There are also some debugfs files at <debugfs>/omapdss/ which show information
164 +about clocks and registers.
165 +
166 +Examples
167 +--------
168 +
169 +The following definitions have been made for the examples below:
170 +
171 +ovl0=/sys/devices/platform/omapdss/overlay0
172 +ovl1=/sys/devices/platform/omapdss/overlay1
173 +ovl2=/sys/devices/platform/omapdss/overlay2
174 +
175 +mgr0=/sys/devices/platform/omapdss/manager0
176 +mgr1=/sys/devices/platform/omapdss/manager1
177 +
178 +lcd=/sys/devices/platform/omapdss/display0
179 +dvi=/sys/devices/platform/omapdss/display1
180 +tv=/sys/devices/platform/omapdss/display2
181 +
182 +fb0=/sys/class/graphics/fb0
183 +fb1=/sys/class/graphics/fb1
184 +fb2=/sys/class/graphics/fb2
185 +
186 +Default setup on OMAP3 SDP
187 +--------------------------
188 +
189 +Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI
190 +and TV-out are not in use. The columns from left to right are:
191 +framebuffers, overlays, overlay managers, displays. Framebuffers are
192 +handled by omapfb, and the rest by the DSS.
193 +
194 +FB0 --- GFX -\ DVI
195 +FB1 --- VID1 --+- LCD ---- LCD
196 +FB2 --- VID2 -/ TV ----- TV
197 +
198 +Example: Switch from LCD to DVI
199 +----------------------
200 +
201 +w=`cat $dvi/timings | cut -d "," -f 2 | cut -d "/" -f 1`
202 +h=`cat $dvi/timings | cut -d "," -f 3 | cut -d "/" -f 1`
203 +
204 +echo "0" > $lcd/enabled
205 +echo "" > $mgr0/display
206 +fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h
207 +# at this point you have to switch the dvi/lcd dip-switch from the omap board
208 +echo "dvi" > $mgr0/display
209 +echo "1" > $dvi/enabled
210 +
211 +After this the configuration looks like:
212 +
213 +FB0 --- GFX -\ -- DVI
214 +FB1 --- VID1 --+- LCD -/ LCD
215 +FB2 --- VID2 -/ TV ----- TV
216 +
217 +Example: Clone GFX overlay to LCD and TV
218 +-------------------------------
219 +
220 +w=`cat $tv/timings | cut -d "," -f 2 | cut -d "/" -f 1`
221 +h=`cat $tv/timings | cut -d "," -f 3 | cut -d "/" -f 1`
222 +
223 +echo "0" > $ovl0/enabled
224 +echo "0" > $ovl1/enabled
225 +
226 +echo "" > $fb1/overlays
227 +echo "0,1" > $fb0/overlays
228 +
229 +echo "$w,$h" > $ovl1/output_size
230 +echo "tv" > $ovl1/manager
231 +
232 +echo "1" > $ovl0/enabled
233 +echo "1" > $ovl1/enabled
234 +
235 +echo "1" > $tv/enabled
236 +
237 +After this the configuration looks like (only relevant parts shown):
238 +
239 +FB0 +-- GFX ---- LCD ---- LCD
240 + \- VID1 ---- TV ---- TV
241 +
242 +Misc notes
243 +----------
244 +
245 +OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
246 +
247 +Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
248 +of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
249 +
250 +Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB
251 +does not support mirroring.
252 +
253 +VRFB rotation requires much more memory than non-rotated framebuffer, so you
254 +probably need to increase your vram setting before using VRFB rotation. Also,
255 +many applications may not work with VRFB if they do not pay attention to all
256 +framebuffer parameters.
257 +
258 +Kernel boot arguments
259 +---------------------
260 +
261 +vram=<size>
262 + - Amount of total VRAM to preallocate. For example, "10M". omapfb
263 + allocates memory for framebuffers from VRAM.
264 +
265 +omapfb.mode=<display>:<mode>[,...]
266 + - Default video mode for specified displays. For example,
267 + "dvi:800x400MR-24@60". See drivers/video/modedb.c.
268 + There are also two special modes: "pal" and "ntsc" that
269 + can be used to tv out.
270 +
271 +omapfb.vram=<fbnum>:<size>[@<physaddr>][,...]
272 + - VRAM allocated for a framebuffer. Normally omapfb allocates vram
273 + depending on the display size. With this you can manually allocate
274 + more or define the physical address of each framebuffer. For example,
275 + "1:4M" to allocate 4M for fb1.
276 +
277 +omapfb.debug=<y|n>
278 + - Enable debug printing. You have to have OMAPFB debug support enabled
279 + in kernel config.
280 +
281 +omapfb.test=<y|n>
282 + - Draw test pattern to framebuffer whenever framebuffer settings change.
283 + You need to have OMAPFB debug support enabled in kernel config.
284 +
285 +omapfb.vrfb=<y|n>
286 + - Use VRFB rotation for all framebuffers.
287 +
288 +omapfb.rotate=<angle>
289 + - Default rotation applied to all framebuffers.
290 + 0 - 0 degree rotation
291 + 1 - 90 degree rotation
292 + 2 - 180 degree rotation
293 + 3 - 270 degree rotation
294 +
295 +omapfb.mirror=<y|n>
296 + - Default mirror for all framebuffers. Only works with DMA rotation.
297 +
298 +omapdss.def_disp=<display>
299 + - Name of default display, to which all overlays will be connected.
300 + Common examples are "lcd" or "tv".
301 +
302 +omapdss.debug=<y|n>
303 + - Enable debug printing. You have to have DSS debug support enabled in
304 + kernel config.
305 +
306 +TODO
307 +----
308 +
309 +DSS locking
310 +
311 +Error checking
312 +- Lots of checks are missing or implemented just as BUG()
313 +
314 +System DMA update for DSI
315 +- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how
316 + to skip the empty byte?)
317 +
318 +OMAP1 support
319 +- Not sure if needed
320 +
321 --- a/MAINTAINERS
322 +++ b/MAINTAINERS
323 @@ -3848,6 +3848,23 @@ L: linux-omap@vger.kernel.org
324 S: Maintained
325 F: drivers/video/omap/
326
327 +OMAP DISPLAY SUBSYSTEM SUPPORT (DSS2)
328 +M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
329 +L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
330 +L: linux-omap@vger.kernel.org
331 +S: Maintained
332 +F: drivers/video/omap2/dss/
333 +F: drivers/video/omap2/vrfb.c
334 +F: drivers/video/omap2/vram.c
335 +F: Documentation/arm/OMAP/DSS
336 +
337 +OMAP FRAMEBUFFER SUPPORT (FOR DSS2)
338 +M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
339 +L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
340 +L: linux-omap@vger.kernel.org
341 +S: Maintained
342 +F: drivers/video/omap2/omapfb/
343 +
344 OMAP MMC SUPPORT
345 M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
346 L: linux-omap@vger.kernel.org
347 --- a/arch/arm/configs/omap_3430sdp_defconfig
348 +++ b/arch/arm/configs/omap_3430sdp_defconfig
349 @@ -1336,10 +1336,33 @@ CONFIG_FB_CFB_IMAGEBLIT=y
350 #
351 # CONFIG_FB_S1D13XXX is not set
352 # CONFIG_FB_VIRTUAL is not set
353 -CONFIG_FB_OMAP=y
354 -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
355 +# CONFIG_FB_METRONOME is not set
356 +# CONFIG_FB_MB862XX is not set
357 +# CONFIG_FB_BROADSHEET is not set
358 +# CONFIG_FB_OMAP_LCD_VGA is not set
359 # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
360 -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
361 +CONFIG_OMAP2_VRAM=y
362 +CONFIG_OMAP2_VRFB=y
363 +CONFIG_OMAP2_DSS=y
364 +CONFIG_OMAP2_VRAM_SIZE=4
365 +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
366 +# CONFIG_OMAP2_DSS_RFBI is not set
367 +CONFIG_OMAP2_DSS_VENC=y
368 +# CONFIG_OMAP2_DSS_SDI is not set
369 +# CONFIG_OMAP2_DSS_DSI is not set
370 +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
371 +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
372 +CONFIG_FB_OMAP2=y
373 +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
374 +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
375 +CONFIG_FB_OMAP2_NUM_FBS=3
376 +
377 +#
378 +# OMAP2/3 Display Device Drivers
379 +#
380 +CONFIG_PANEL_GENERIC=y
381 +# CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C is not set
382 +CONFIG_PANEL_SHARP_LS037V7DW01=y
383 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
384
385 #
386 --- a/arch/arm/mach-omap1/board-nokia770.c
387 +++ b/arch/arm/mach-omap1/board-nokia770.c
388 @@ -14,6 +14,7 @@
389 #include <linux/platform_device.h>
390 #include <linux/input.h>
391 #include <linux/clk.h>
392 +#include <linux/omapfb.h>
393
394 #include <linux/spi/spi.h>
395 #include <linux/spi/ads7846.h>
396 @@ -32,7 +33,6 @@
397 #include <mach/keypad.h>
398 #include <mach/common.h>
399 #include <mach/dsp_common.h>
400 -#include <mach/omapfb.h>
401 #include <mach/hwa742.h>
402 #include <mach/lcd_mipid.h>
403 #include <mach/mmc.h>
404 --- a/arch/arm/mach-omap2/board-3430sdp.c
405 +++ b/arch/arm/mach-omap2/board-3430sdp.c
406 @@ -37,6 +37,7 @@
407 #include <mach/common.h>
408 #include <mach/dma.h>
409 #include <mach/gpmc.h>
410 +#include <mach/display.h>
411
412 #include <mach/control.h>
413 #include <mach/gpmc-smc91x.h>
414 @@ -152,31 +153,152 @@ static struct spi_board_info sdp3430_spi
415 },
416 };
417
418 -static struct platform_device sdp3430_lcd_device = {
419 - .name = "sdp2430_lcd",
420 - .id = -1,
421 +
422 +#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8
423 +#define SDP3430_LCD_PANEL_ENABLE_GPIO 5
424 +
425 +static unsigned backlight_gpio;
426 +static unsigned enable_gpio;
427 +static int lcd_enabled;
428 +static int dvi_enabled;
429 +
430 +static void __init sdp3430_display_init(void)
431 +{
432 + int r;
433 +
434 + enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO;
435 + backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO;
436 +
437 + r = gpio_request(enable_gpio, "LCD reset");
438 + if (r) {
439 + printk(KERN_ERR "failed to get LCD reset GPIO\n");
440 + goto err0;
441 + }
442 +
443 + r = gpio_request(backlight_gpio, "LCD Backlight");
444 + if (r) {
445 + printk(KERN_ERR "failed to get LCD backlight GPIO\n");
446 + goto err1;
447 + }
448 +
449 + gpio_direction_output(enable_gpio, 0);
450 + gpio_direction_output(backlight_gpio, 0);
451 +
452 + return;
453 +err1:
454 + gpio_free(enable_gpio);
455 +err0:
456 + return;
457 +}
458 +
459 +static int sdp3430_panel_enable_lcd(struct omap_dss_device *dssdev)
460 +{
461 + if (dvi_enabled) {
462 + printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
463 + return -EINVAL;
464 + }
465 +
466 + gpio_direction_output(enable_gpio, 1);
467 + gpio_direction_output(backlight_gpio, 1);
468 +
469 + lcd_enabled = 1;
470 +
471 + return 0;
472 +}
473 +
474 +static void sdp3430_panel_disable_lcd(struct omap_dss_device *dssdev)
475 +{
476 + lcd_enabled = 0;
477 +
478 + gpio_direction_output(enable_gpio, 0);
479 + gpio_direction_output(backlight_gpio, 0);
480 +}
481 +
482 +static int sdp3430_panel_enable_dvi(struct omap_dss_device *dssdev)
483 +{
484 + if (lcd_enabled) {
485 + printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
486 + return -EINVAL;
487 + }
488 +
489 + dvi_enabled = 1;
490 +
491 + return 0;
492 +}
493 +
494 +static void sdp3430_panel_disable_dvi(struct omap_dss_device *dssdev)
495 +{
496 + dvi_enabled = 0;
497 +}
498 +
499 +static int sdp3430_panel_enable_tv(struct omap_dss_device *dssdev)
500 +{
501 + return 0;
502 +}
503 +
504 +static void sdp3430_panel_disable_tv(struct omap_dss_device *dssdev)
505 +{
506 +}
507 +
508 +
509 +static struct omap_dss_device sdp3430_lcd_device = {
510 + .name = "lcd",
511 + .driver_name = "sharp_ls_panel",
512 + .type = OMAP_DISPLAY_TYPE_DPI,
513 + .phy.dpi.data_lines = 16,
514 + .platform_enable = sdp3430_panel_enable_lcd,
515 + .platform_disable = sdp3430_panel_disable_lcd,
516 +};
517 +
518 +static struct omap_dss_device sdp3430_dvi_device = {
519 + .name = "dvi",
520 + .driver_name = "generic_panel",
521 + .type = OMAP_DISPLAY_TYPE_DPI,
522 + .phy.dpi.data_lines = 24,
523 + .platform_enable = sdp3430_panel_enable_dvi,
524 + .platform_disable = sdp3430_panel_disable_dvi,
525 +};
526 +
527 +static struct omap_dss_device sdp3430_tv_device = {
528 + .name = "tv",
529 + .driver_name = "venc",
530 + .type = OMAP_DISPLAY_TYPE_VENC,
531 + .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
532 + .platform_enable = sdp3430_panel_enable_tv,
533 + .platform_disable = sdp3430_panel_disable_tv,
534 +};
535 +
536 +
537 +static struct omap_dss_device *sdp3430_dss_devices[] = {
538 + &sdp3430_lcd_device,
539 + &sdp3430_dvi_device,
540 + &sdp3430_tv_device,
541 };
542
543 -static struct regulator_consumer_supply sdp3430_vdac_supply = {
544 - .supply = "vdac",
545 - .dev = &sdp3430_lcd_device.dev,
546 +static struct omap_dss_board_info sdp3430_dss_data = {
547 + .num_devices = ARRAY_SIZE(sdp3430_dss_devices),
548 + .devices = sdp3430_dss_devices,
549 + .default_device = &sdp3430_lcd_device,
550 };
551
552 -static struct regulator_consumer_supply sdp3430_vdvi_supply = {
553 - .supply = "vdvi",
554 - .dev = &sdp3430_lcd_device.dev,
555 +static struct platform_device sdp3430_dss_device = {
556 + .name = "omapdss",
557 + .id = -1,
558 + .dev = {
559 + .platform_data = &sdp3430_dss_data,
560 + },
561 };
562
563 -static struct platform_device *sdp3430_devices[] __initdata = {
564 - &sdp3430_lcd_device,
565 +static struct regulator_consumer_supply sdp3430_vdda_dac_supply = {
566 + .supply = "vdda_dac",
567 + .dev = &sdp3430_dss_device.dev,
568 };
569
570 -static struct omap_lcd_config sdp3430_lcd_config __initdata = {
571 - .ctrl_name = "internal",
572 +static struct platform_device *sdp3430_devices[] __initdata = {
573 + &sdp3430_dss_device,
574 };
575
576 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
577 - { OMAP_TAG_LCD, &sdp3430_lcd_config },
578 };
579
580 static void __init omap_3430sdp_init_irq(void)
581 @@ -392,22 +514,34 @@ static struct regulator_init_data sdp343
582 | REGULATOR_CHANGE_STATUS,
583 },
584 .num_consumer_supplies = 1,
585 - .consumer_supplies = &sdp3430_vdac_supply,
586 + .consumer_supplies = &sdp3430_vdda_dac_supply,
587 };
588
589 /* VPLL2 for digital video outputs */
590 +static struct regulator_consumer_supply sdp3430_vpll2_supplies[] = {
591 + {
592 + .supply = "vdvi",
593 + .dev = &sdp3430_lcd_device.dev,
594 + },
595 + {
596 + .supply = "vdds_dsi",
597 + .dev = &sdp3430_dss_device.dev,
598 + }
599 +};
600 +
601 static struct regulator_init_data sdp3430_vpll2 = {
602 .constraints = {
603 .name = "VDVI",
604 .min_uV = 1800000,
605 .max_uV = 1800000,
606 + .apply_uV = true,
607 .valid_modes_mask = REGULATOR_MODE_NORMAL
608 | REGULATOR_MODE_STANDBY,
609 .valid_ops_mask = REGULATOR_CHANGE_MODE
610 | REGULATOR_CHANGE_STATUS,
611 },
612 - .num_consumer_supplies = 1,
613 - .consumer_supplies = &sdp3430_vdvi_supply,
614 + .num_consumer_supplies = ARRAY_SIZE(sdp3430_vpll2_supplies),
615 + .consumer_supplies = sdp3430_vpll2_supplies,
616 };
617
618 static struct twl4030_platform_data sdp3430_twldata = {
619 @@ -499,6 +633,7 @@ static void __init omap_3430sdp_init(voi
620 omap_serial_init();
621 usb_musb_init();
622 board_smc91x_init();
623 + sdp3430_display_init();
624 enable_board_wakeup_source();
625 }
626
627 --- a/arch/arm/mach-omap2/clock24xx.c
628 +++ b/arch/arm/mach-omap2/clock24xx.c
629 @@ -116,10 +116,10 @@ static struct omap_clk omap24xx_clks[] =
630 CLK(NULL, "mdm_ick", &mdm_ick, CK_243X),
631 CLK(NULL, "mdm_osc_ck", &mdm_osc_ck, CK_243X),
632 /* DSS domain clocks */
633 - CLK("omapfb", "ick", &dss_ick, CK_243X | CK_242X),
634 - CLK("omapfb", "dss1_fck", &dss1_fck, CK_243X | CK_242X),
635 - CLK("omapfb", "dss2_fck", &dss2_fck, CK_243X | CK_242X),
636 - CLK("omapfb", "tv_fck", &dss_54m_fck, CK_243X | CK_242X),
637 + CLK("omapdss", "ick", &dss_ick, CK_243X | CK_242X),
638 + CLK("omapdss", "dss1_fck", &dss1_fck, CK_243X | CK_242X),
639 + CLK("omapdss", "dss2_fck", &dss2_fck, CK_243X | CK_242X),
640 + CLK("omapdss", "tv_fck", &dss_54m_fck, CK_243X | CK_242X),
641 /* L3 domain clocks */
642 CLK(NULL, "core_l3_ck", &core_l3_ck, CK_243X | CK_242X),
643 CLK(NULL, "ssi_fck", &ssi_ssr_sst_fck, CK_243X | CK_242X),
644 --- a/arch/arm/mach-omap2/clock34xx.c
645 +++ b/arch/arm/mach-omap2/clock34xx.c
646 @@ -236,13 +236,13 @@ static struct omap_clk omap34xx_clks[] =
647 CLK("omap_rng", "ick", &rng_ick, CK_343X),
648 CLK(NULL, "sha11_ick", &sha11_ick, CK_343X),
649 CLK(NULL, "des1_ick", &des1_ick, CK_343X),
650 - CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1),
651 - CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2),
652 - CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X),
653 - CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X),
654 - CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X),
655 - CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1),
656 - CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2),
657 + CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1),
658 + CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2),
659 + CLK("omapdss", "tv_fck", &dss_tv_fck, CK_343X),
660 + CLK("omapdss", "video_fck", &dss_96m_fck, CK_343X),
661 + CLK("omapdss", "dss2_fck", &dss2_alwon_fck, CK_343X),
662 + CLK("omapdss", "ick", &dss_ick_3430es1, CK_3430ES1),
663 + CLK("omapdss", "ick", &dss_ick_3430es2, CK_3430ES2),
664 CLK(NULL, "cam_mclk", &cam_mclk, CK_343X),
665 CLK(NULL, "cam_ick", &cam_ick, CK_343X),
666 CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X),
667 --- a/arch/arm/mach-omap2/io.c
668 +++ b/arch/arm/mach-omap2/io.c
669 @@ -22,17 +22,18 @@
670 #include <linux/init.h>
671 #include <linux/io.h>
672 #include <linux/clk.h>
673 +#include <linux/omapfb.h>
674
675 #include <asm/tlb.h>
676
677 #include <asm/mach/map.h>
678
679 #include <mach/mux.h>
680 -#include <mach/omapfb.h>
681 #include <mach/sram.h>
682 #include <mach/sdrc.h>
683 #include <mach/gpmc.h>
684 #include <mach/serial.h>
685 +#include <mach/vram.h>
686
687 #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */
688 #include "clock.h"
689 @@ -246,6 +247,7 @@ void __init omap2_map_common_io(void)
690 omap2_check_revision();
691 omap_sram_init();
692 omapfb_reserve_sdram();
693 + omap_vram_reserve_sdram();
694 }
695
696 /*
697 --- a/arch/arm/mach-omap2/sdrc.c
698 +++ b/arch/arm/mach-omap2/sdrc.c
699 @@ -133,3 +133,19 @@ void __init omap2_sdrc_init(struct omap_
700 (1 << SDRC_POWER_PAGEPOLICY_SHIFT);
701 sdrc_write_reg(l, SDRC_POWER);
702 }
703 +
704 +void omap2_sms_write_rot_control(u32 val, unsigned ctx)
705 +{
706 + sms_write_reg(val, SMS_ROT_CONTROL(ctx));
707 +}
708 +
709 +void omap2_sms_write_rot_size(u32 val, unsigned ctx)
710 +{
711 + sms_write_reg(val, SMS_ROT_SIZE(ctx));
712 +}
713 +
714 +void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx)
715 +{
716 + sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx));
717 +}
718 +
719 --- a/arch/arm/plat-omap/fb.c
720 +++ b/arch/arm/plat-omap/fb.c
721 @@ -28,13 +28,13 @@
722 #include <linux/platform_device.h>
723 #include <linux/bootmem.h>
724 #include <linux/io.h>
725 +#include <linux/omapfb.h>
726
727 #include <mach/hardware.h>
728 #include <asm/mach/map.h>
729
730 #include <mach/board.h>
731 #include <mach/sram.h>
732 -#include <mach/omapfb.h>
733
734 #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
735
736 @@ -327,7 +327,33 @@ static inline int omap_init_fb(void)
737
738 arch_initcall(omap_init_fb);
739
740 -#else
741 +#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
742 +
743 +static u64 omap_fb_dma_mask = ~(u32)0;
744 +static struct omapfb_platform_data omapfb_config;
745 +
746 +static struct platform_device omap_fb_device = {
747 + .name = "omapfb",
748 + .id = -1,
749 + .dev = {
750 + .dma_mask = &omap_fb_dma_mask,
751 + .coherent_dma_mask = ~(u32)0,
752 + .platform_data = &omapfb_config,
753 + },
754 + .num_resources = 0,
755 +};
756 +
757 +void omapfb_set_platform_data(struct omapfb_platform_data *data)
758 +{
759 + omapfb_config = *data;
760 +}
761 +
762 +static inline int omap_init_fb(void)
763 +{
764 + return platform_device_register(&omap_fb_device);
765 +}
766 +
767 +arch_initcall(omap_init_fb);
768
769 void omapfb_reserve_sdram(void) {}
770 unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
771 @@ -339,5 +365,16 @@ unsigned long omapfb_reserve_sram(unsign
772 return 0;
773 }
774
775 +#else
776 +
777 +void omapfb_reserve_sdram(void) {}
778 +unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
779 + unsigned long sram_vstart,
780 + unsigned long sram_size,
781 + unsigned long start_avail,
782 + unsigned long size_avail)
783 +{
784 + return 0;
785 +}
786
787 #endif
788 --- /dev/null
789 +++ b/arch/arm/plat-omap/include/mach/display.h
790 @@ -0,0 +1,540 @@
791 +/*
792 + * linux/include/asm-arm/arch-omap/display.h
793 + *
794 + * Copyright (C) 2008 Nokia Corporation
795 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
796 + *
797 + * This program is free software; you can redistribute it and/or modify it
798 + * under the terms of the GNU General Public License version 2 as published by
799 + * the Free Software Foundation.
800 + *
801 + * This program is distributed in the hope that it will be useful, but WITHOUT
802 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
803 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
804 + * more details.
805 + *
806 + * You should have received a copy of the GNU General Public License along with
807 + * this program. If not, see <http://www.gnu.org/licenses/>.
808 + */
809 +
810 +#ifndef __ASM_ARCH_OMAP_DISPLAY_H
811 +#define __ASM_ARCH_OMAP_DISPLAY_H
812 +
813 +#include <linux/list.h>
814 +#include <linux/kobject.h>
815 +#include <linux/device.h>
816 +#include <asm/atomic.h>
817 +
818 +#define DISPC_IRQ_FRAMEDONE (1 << 0)
819 +#define DISPC_IRQ_VSYNC (1 << 1)
820 +#define DISPC_IRQ_EVSYNC_EVEN (1 << 2)
821 +#define DISPC_IRQ_EVSYNC_ODD (1 << 3)
822 +#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4)
823 +#define DISPC_IRQ_PROG_LINE_NUM (1 << 5)
824 +#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6)
825 +#define DISPC_IRQ_GFX_END_WIN (1 << 7)
826 +#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8)
827 +#define DISPC_IRQ_OCP_ERR (1 << 9)
828 +#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10)
829 +#define DISPC_IRQ_VID1_END_WIN (1 << 11)
830 +#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12)
831 +#define DISPC_IRQ_VID2_END_WIN (1 << 13)
832 +#define DISPC_IRQ_SYNC_LOST (1 << 14)
833 +#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15)
834 +#define DISPC_IRQ_WAKEUP (1 << 16)
835 +
836 +struct omap_dss_device;
837 +struct omap_overlay_manager;
838 +
839 +enum omap_display_type {
840 + OMAP_DISPLAY_TYPE_NONE = 0,
841 + OMAP_DISPLAY_TYPE_DPI = 1 << 0,
842 + OMAP_DISPLAY_TYPE_DBI = 1 << 1,
843 + OMAP_DISPLAY_TYPE_SDI = 1 << 2,
844 + OMAP_DISPLAY_TYPE_DSI = 1 << 3,
845 + OMAP_DISPLAY_TYPE_VENC = 1 << 4,
846 +};
847 +
848 +enum omap_plane {
849 + OMAP_DSS_GFX = 0,
850 + OMAP_DSS_VIDEO1 = 1,
851 + OMAP_DSS_VIDEO2 = 2
852 +};
853 +
854 +enum omap_channel {
855 + OMAP_DSS_CHANNEL_LCD = 0,
856 + OMAP_DSS_CHANNEL_DIGIT = 1,
857 +};
858 +
859 +enum omap_color_mode {
860 + OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */
861 + OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */
862 + OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */
863 + OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */
864 + OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */
865 + OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */
866 + OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */
867 + OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */
868 + OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */
869 + OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */
870 + OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */
871 + OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */
872 + OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */
873 + OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */
874 +
875 + OMAP_DSS_COLOR_GFX_OMAP3 =
876 + OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
877 + OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
878 + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
879 + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
880 + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
881 + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
882 +
883 + OMAP_DSS_COLOR_VID_OMAP3 =
884 + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
885 + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
886 + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
887 + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 |
888 + OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY,
889 +};
890 +
891 +enum omap_lcd_display_type {
892 + OMAP_DSS_LCD_DISPLAY_STN,
893 + OMAP_DSS_LCD_DISPLAY_TFT,
894 +};
895 +
896 +enum omap_dss_load_mode {
897 + OMAP_DSS_LOAD_CLUT_AND_FRAME = 0,
898 + OMAP_DSS_LOAD_CLUT_ONLY = 1,
899 + OMAP_DSS_LOAD_FRAME_ONLY = 2,
900 + OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3,
901 +};
902 +
903 +enum omap_dss_trans_key_type {
904 + OMAP_DSS_COLOR_KEY_GFX_DST = 0,
905 + OMAP_DSS_COLOR_KEY_VID_SRC = 1,
906 +};
907 +
908 +enum omap_rfbi_te_mode {
909 + OMAP_DSS_RFBI_TE_MODE_1 = 1,
910 + OMAP_DSS_RFBI_TE_MODE_2 = 2,
911 +};
912 +
913 +enum omap_panel_config {
914 + OMAP_DSS_LCD_IVS = 1<<0,
915 + OMAP_DSS_LCD_IHS = 1<<1,
916 + OMAP_DSS_LCD_IPC = 1<<2,
917 + OMAP_DSS_LCD_IEO = 1<<3,
918 + OMAP_DSS_LCD_RF = 1<<4,
919 + OMAP_DSS_LCD_ONOFF = 1<<5,
920 +
921 + OMAP_DSS_LCD_TFT = 1<<20,
922 +};
923 +
924 +enum omap_dss_venc_type {
925 + OMAP_DSS_VENC_TYPE_COMPOSITE,
926 + OMAP_DSS_VENC_TYPE_SVIDEO,
927 +};
928 +
929 +enum omap_display_caps {
930 + OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0,
931 +};
932 +
933 +enum omap_dss_update_mode {
934 + OMAP_DSS_UPDATE_DISABLED = 0,
935 + OMAP_DSS_UPDATE_AUTO,
936 + OMAP_DSS_UPDATE_MANUAL,
937 +};
938 +
939 +enum omap_dss_display_state {
940 + OMAP_DSS_DISPLAY_DISABLED = 0,
941 + OMAP_DSS_DISPLAY_ACTIVE,
942 + OMAP_DSS_DISPLAY_SUSPENDED,
943 +};
944 +
945 +/* XXX perhaps this should be removed */
946 +enum omap_dss_overlay_managers {
947 + OMAP_DSS_OVL_MGR_LCD,
948 + OMAP_DSS_OVL_MGR_TV,
949 +};
950 +
951 +enum omap_dss_rotation_type {
952 + OMAP_DSS_ROT_DMA = 0,
953 + OMAP_DSS_ROT_VRFB = 1,
954 +};
955 +
956 +enum omap_overlay_caps {
957 + OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
958 + OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
959 +};
960 +
961 +enum omap_overlay_manager_caps {
962 + OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
963 +};
964 +
965 +/* RFBI */
966 +
967 +struct rfbi_timings {
968 + int cs_on_time;
969 + int cs_off_time;
970 + int we_on_time;
971 + int we_off_time;
972 + int re_on_time;
973 + int re_off_time;
974 + int we_cycle_time;
975 + int re_cycle_time;
976 + int cs_pulse_width;
977 + int access_time;
978 +
979 + int clk_div;
980 +
981 + u32 tim[5]; /* set by rfbi_convert_timings() */
982 +
983 + int converted;
984 +};
985 +
986 +void omap_rfbi_write_command(const void *buf, u32 len);
987 +void omap_rfbi_read_data(void *buf, u32 len);
988 +void omap_rfbi_write_data(const void *buf, u32 len);
989 +void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
990 + u16 x, u16 y,
991 + u16 w, u16 h);
992 +int omap_rfbi_enable_te(bool enable, unsigned line);
993 +int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
994 + unsigned hs_pulse_time, unsigned vs_pulse_time,
995 + int hs_pol_inv, int vs_pol_inv, int extif_div);
996 +
997 +/* DSI */
998 +void dsi_bus_lock(void);
999 +void dsi_bus_unlock(void);
1000 +int dsi_vc_dcs_write(int channel, u8 *data, int len);
1001 +int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
1002 +int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
1003 +int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
1004 +int dsi_vc_send_null(int channel);
1005 +int dsi_vc_send_bta_sync(int channel);
1006 +
1007 +/* Board specific data */
1008 +struct omap_dss_board_info {
1009 + int (*get_last_off_on_transaction_id)(struct device *dev);
1010 + int num_devices;
1011 + struct omap_dss_device **devices;
1012 + struct omap_dss_device *default_device;
1013 +};
1014 +
1015 +struct omap_video_timings {
1016 + /* Unit: pixels */
1017 + u16 x_res;
1018 + /* Unit: pixels */
1019 + u16 y_res;
1020 + /* Unit: KHz */
1021 + u32 pixel_clock;
1022 + /* Unit: pixel clocks */
1023 + u16 hsw; /* Horizontal synchronization pulse width */
1024 + /* Unit: pixel clocks */
1025 + u16 hfp; /* Horizontal front porch */
1026 + /* Unit: pixel clocks */
1027 + u16 hbp; /* Horizontal back porch */
1028 + /* Unit: line clocks */
1029 + u16 vsw; /* Vertical synchronization pulse width */
1030 + /* Unit: line clocks */
1031 + u16 vfp; /* Vertical front porch */
1032 + /* Unit: line clocks */
1033 + u16 vbp; /* Vertical back porch */
1034 +};
1035 +
1036 +#ifdef CONFIG_OMAP2_DSS_VENC
1037 +/* Hardcoded timings for tv modes. Venc only uses these to
1038 + * identify the mode, and does not actually use the configs
1039 + * itself. However, the configs should be something that
1040 + * a normal monitor can also show */
1041 +const extern struct omap_video_timings omap_dss_pal_timings;
1042 +const extern struct omap_video_timings omap_dss_ntsc_timings;
1043 +#endif
1044 +
1045 +struct omap_overlay_info {
1046 + bool enabled;
1047 +
1048 + u32 paddr;
1049 + void __iomem *vaddr;
1050 + u16 screen_width;
1051 + u16 width;
1052 + u16 height;
1053 + enum omap_color_mode color_mode;
1054 + u8 rotation;
1055 + enum omap_dss_rotation_type rotation_type;
1056 + bool mirror;
1057 +
1058 + u16 pos_x;
1059 + u16 pos_y;
1060 + u16 out_width; /* if 0, out_width == width */
1061 + u16 out_height; /* if 0, out_height == height */
1062 + u8 global_alpha;
1063 +};
1064 +
1065 +struct omap_overlay {
1066 + struct kobject kobj;
1067 + struct list_head list;
1068 +
1069 + /* static fields */
1070 + const char *name;
1071 + int id;
1072 + enum omap_color_mode supported_modes;
1073 + enum omap_overlay_caps caps;
1074 +
1075 + /* dynamic fields */
1076 + struct omap_overlay_manager *manager;
1077 + struct omap_overlay_info info;
1078 +
1079 + /* if true, info has been changed, but not applied() yet */
1080 + bool info_dirty;
1081 +
1082 + int (*set_manager)(struct omap_overlay *ovl,
1083 + struct omap_overlay_manager *mgr);
1084 + int (*unset_manager)(struct omap_overlay *ovl);
1085 +
1086 + int (*set_overlay_info)(struct omap_overlay *ovl,
1087 + struct omap_overlay_info *info);
1088 + void (*get_overlay_info)(struct omap_overlay *ovl,
1089 + struct omap_overlay_info *info);
1090 +
1091 + int (*wait_for_go)(struct omap_overlay *ovl);
1092 +};
1093 +
1094 +struct omap_overlay_manager_info {
1095 + u32 default_color;
1096 +
1097 + enum omap_dss_trans_key_type trans_key_type;
1098 + u32 trans_key;
1099 + bool trans_enabled;
1100 +
1101 + bool alpha_enabled;
1102 +};
1103 +
1104 +struct omap_overlay_manager {
1105 + struct kobject kobj;
1106 + struct list_head list;
1107 +
1108 + /* static fields */
1109 + const char *name;
1110 + int id;
1111 + enum omap_overlay_manager_caps caps;
1112 + int num_overlays;
1113 + struct omap_overlay **overlays;
1114 + enum omap_display_type supported_displays;
1115 +
1116 + /* dynamic fields */
1117 + struct omap_dss_device *device;
1118 + struct omap_overlay_manager_info info;
1119 +
1120 + bool device_changed;
1121 + /* if true, info has been changed but not applied() yet */
1122 + bool info_dirty;
1123 +
1124 + int (*set_device)(struct omap_overlay_manager *mgr,
1125 + struct omap_dss_device *dssdev);
1126 + int (*unset_device)(struct omap_overlay_manager *mgr);
1127 +
1128 + int (*set_manager_info)(struct omap_overlay_manager *mgr,
1129 + struct omap_overlay_manager_info *info);
1130 + void (*get_manager_info)(struct omap_overlay_manager *mgr,
1131 + struct omap_overlay_manager_info *info);
1132 +
1133 + int (*apply)(struct omap_overlay_manager *mgr);
1134 + int (*wait_for_go)(struct omap_overlay_manager *mgr);
1135 +};
1136 +
1137 +struct omap_dss_device {
1138 + struct device dev;
1139 +
1140 + enum omap_display_type type;
1141 +
1142 + union {
1143 + struct {
1144 + u8 data_lines;
1145 + } dpi;
1146 +
1147 + struct {
1148 + u8 channel;
1149 + u8 data_lines;
1150 + } rfbi;
1151 +
1152 + struct {
1153 + u8 datapairs;
1154 + } sdi;
1155 +
1156 + struct {
1157 + u8 clk_lane;
1158 + u8 clk_pol;
1159 + u8 data1_lane;
1160 + u8 data1_pol;
1161 + u8 data2_lane;
1162 + u8 data2_pol;
1163 + unsigned long lp_clk_hz;
1164 + unsigned long ddr_clk_hz;
1165 +
1166 + bool ext_te;
1167 + u8 ext_te_gpio;
1168 + } dsi;
1169 +
1170 + struct {
1171 + enum omap_dss_venc_type type;
1172 + bool invert_polarity;
1173 + } venc;
1174 + } phy;
1175 +
1176 + struct {
1177 + struct omap_video_timings timings;
1178 +
1179 + int acbi; /* ac-bias pin transitions per interrupt */
1180 + /* Unit: line clocks */
1181 + int acb; /* ac-bias pin frequency */
1182 +
1183 + enum omap_panel_config config;
1184 +
1185 + u8 recommended_bpp;
1186 +
1187 + struct omap_dss_device *ctrl;
1188 + } panel;
1189 +
1190 + struct {
1191 + u8 pixel_size;
1192 + struct rfbi_timings rfbi_timings;
1193 + struct omap_dss_device *panel;
1194 + } ctrl;
1195 +
1196 + int reset_gpio;
1197 +
1198 + int max_backlight_level;
1199 +
1200 + const char *name;
1201 +
1202 + /* used to match device to driver */
1203 + const char *driver_name;
1204 +
1205 + void *data;
1206 +
1207 + struct omap_dss_driver *driver;
1208 +
1209 + /* helper variable for driver suspend/resume */
1210 + bool activate_after_resume;
1211 +
1212 + enum omap_display_caps caps;
1213 +
1214 + struct omap_overlay_manager *manager;
1215 +
1216 + enum omap_dss_display_state state;
1217 +
1218 + int (*enable)(struct omap_dss_device *dssdev);
1219 + void (*disable)(struct omap_dss_device *dssdev);
1220 +
1221 + int (*suspend)(struct omap_dss_device *dssdev);
1222 + int (*resume)(struct omap_dss_device *dssdev);
1223 +
1224 + void (*get_resolution)(struct omap_dss_device *dssdev,
1225 + u16 *xres, u16 *yres);
1226 + int (*get_recommended_bpp)(struct omap_dss_device *dssdev);
1227 +
1228 + int (*check_timings)(struct omap_dss_device *dssdev,
1229 + struct omap_video_timings *timings);
1230 + void (*set_timings)(struct omap_dss_device *dssdev,
1231 + struct omap_video_timings *timings);
1232 + void (*get_timings)(struct omap_dss_device *dssdev,
1233 + struct omap_video_timings *timings);
1234 + int (*update)(struct omap_dss_device *dssdev,
1235 + u16 x, u16 y, u16 w, u16 h);
1236 + int (*sync)(struct omap_dss_device *dssdev);
1237 + int (*wait_vsync)(struct omap_dss_device *dssdev);
1238 +
1239 + int (*set_update_mode)(struct omap_dss_device *dssdev,
1240 + enum omap_dss_update_mode);
1241 + enum omap_dss_update_mode (*get_update_mode)
1242 + (struct omap_dss_device *dssdev);
1243 +
1244 + int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
1245 + int (*get_te)(struct omap_dss_device *dssdev);
1246 +
1247 + u8 (*get_rotate)(struct omap_dss_device *dssdev);
1248 + int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
1249 +
1250 + bool (*get_mirror)(struct omap_dss_device *dssdev);
1251 + int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
1252 +
1253 + int (*run_test)(struct omap_dss_device *dssdev, int test);
1254 + int (*memory_read)(struct omap_dss_device *dssdev,
1255 + void *buf, size_t size,
1256 + u16 x, u16 y, u16 w, u16 h);
1257 +
1258 + int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
1259 + u32 (*get_wss)(struct omap_dss_device *dssdev);
1260 +
1261 + /* platform specific */
1262 + int (*platform_enable)(struct omap_dss_device *dssdev);
1263 + void (*platform_disable)(struct omap_dss_device *dssdev);
1264 + int (*set_backlight)(struct omap_dss_device *dssdev, int level);
1265 + int (*get_backlight)(struct omap_dss_device *dssdev);
1266 +};
1267 +
1268 +struct omap_dss_driver {
1269 + struct device_driver driver;
1270 +
1271 + int (*probe)(struct omap_dss_device *);
1272 + void (*remove)(struct omap_dss_device *);
1273 +
1274 + int (*enable)(struct omap_dss_device *display);
1275 + void (*disable)(struct omap_dss_device *display);
1276 + int (*suspend)(struct omap_dss_device *display);
1277 + int (*resume)(struct omap_dss_device *display);
1278 + int (*run_test)(struct omap_dss_device *display, int test);
1279 +
1280 + void (*setup_update)(struct omap_dss_device *dssdev,
1281 + u16 x, u16 y, u16 w, u16 h);
1282 +
1283 + int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
1284 + int (*wait_for_te)(struct omap_dss_device *dssdev);
1285 +
1286 + u8 (*get_rotate)(struct omap_dss_device *dssdev);
1287 + int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
1288 +
1289 + bool (*get_mirror)(struct omap_dss_device *dssdev);
1290 + int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
1291 +
1292 + int (*memory_read)(struct omap_dss_device *dssdev,
1293 + void *buf, size_t size,
1294 + u16 x, u16 y, u16 w, u16 h);
1295 +};
1296 +
1297 +int omap_dss_register_driver(struct omap_dss_driver *);
1298 +void omap_dss_unregister_driver(struct omap_dss_driver *);
1299 +
1300 +int omap_dss_register_device(struct omap_dss_device *);
1301 +void omap_dss_unregister_device(struct omap_dss_device *);
1302 +
1303 +void omap_dss_get_device(struct omap_dss_device *dssdev);
1304 +void omap_dss_put_device(struct omap_dss_device *dssdev);
1305 +#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL)
1306 +struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
1307 +struct omap_dss_device *omap_dss_find_device(void *data,
1308 + int (*match)(struct omap_dss_device *dssdev, void *data));
1309 +
1310 +int omap_dss_start_device(struct omap_dss_device *dssdev);
1311 +void omap_dss_stop_device(struct omap_dss_device *dssdev);
1312 +
1313 +int omap_dss_get_num_overlay_managers(void);
1314 +struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
1315 +
1316 +int omap_dss_get_num_overlays(void);
1317 +struct omap_overlay *omap_dss_get_overlay(int num);
1318 +
1319 +typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
1320 +int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
1321 +int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
1322 +
1323 +int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
1324 +int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
1325 + unsigned long timeout);
1326 +
1327 +#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
1328 +#define to_dss_device(x) container_of((x), struct omap_dss_device, dev)
1329 +
1330 +#endif
1331 --- a/arch/arm/plat-omap/include/mach/omapfb.h
1332 +++ /dev/null
1333 @@ -1,398 +0,0 @@
1334 -/*
1335 - * File: arch/arm/plat-omap/include/mach/omapfb.h
1336 - *
1337 - * Framebuffer driver for TI OMAP boards
1338 - *
1339 - * Copyright (C) 2004 Nokia Corporation
1340 - * Author: Imre Deak <imre.deak@nokia.com>
1341 - *
1342 - * This program is free software; you can redistribute it and/or modify it
1343 - * under the terms of the GNU General Public License as published by the
1344 - * Free Software Foundation; either version 2 of the License, or (at your
1345 - * option) any later version.
1346 - *
1347 - * This program is distributed in the hope that it will be useful, but
1348 - * WITHOUT ANY WARRANTY; without even the implied warranty of
1349 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1350 - * General Public License for more details.
1351 - *
1352 - * You should have received a copy of the GNU General Public License along
1353 - * with this program; if not, write to the Free Software Foundation, Inc.,
1354 - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
1355 - */
1356 -
1357 -#ifndef __OMAPFB_H
1358 -#define __OMAPFB_H
1359 -
1360 -#include <asm/ioctl.h>
1361 -#include <asm/types.h>
1362 -
1363 -/* IOCTL commands. */
1364 -
1365 -#define OMAP_IOW(num, dtype) _IOW('O', num, dtype)
1366 -#define OMAP_IOR(num, dtype) _IOR('O', num, dtype)
1367 -#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype)
1368 -#define OMAP_IO(num) _IO('O', num)
1369 -
1370 -#define OMAPFB_MIRROR OMAP_IOW(31, int)
1371 -#define OMAPFB_SYNC_GFX OMAP_IO(37)
1372 -#define OMAPFB_VSYNC OMAP_IO(38)
1373 -#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
1374 -#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps)
1375 -#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int)
1376 -#define OMAPFB_LCD_TEST OMAP_IOW(45, int)
1377 -#define OMAPFB_CTRL_TEST OMAP_IOW(46, int)
1378 -#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old)
1379 -#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key)
1380 -#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key)
1381 -#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info)
1382 -#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info)
1383 -#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window)
1384 -#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info)
1385 -#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info)
1386 -
1387 -#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff
1388 -#define OMAPFB_CAPS_LCDC_MASK 0x00fff000
1389 -#define OMAPFB_CAPS_PANEL_MASK 0xff000000
1390 -
1391 -#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000
1392 -#define OMAPFB_CAPS_TEARSYNC 0x00002000
1393 -#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000
1394 -#define OMAPFB_CAPS_PLANE_SCALE 0x00008000
1395 -#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
1396 -#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
1397 -#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
1398 -#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
1399 -#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
1400 -
1401 -/* Values from DSP must map to lower 16-bits */
1402 -#define OMAPFB_FORMAT_MASK 0x00ff
1403 -#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100
1404 -#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200
1405 -#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400
1406 -#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800
1407 -#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000
1408 -
1409 -#define OMAPFB_EVENT_READY 1
1410 -#define OMAPFB_EVENT_DISABLED 2
1411 -
1412 -#define OMAPFB_MEMTYPE_SDRAM 0
1413 -#define OMAPFB_MEMTYPE_SRAM 1
1414 -#define OMAPFB_MEMTYPE_MAX 1
1415 -
1416 -enum omapfb_color_format {
1417 - OMAPFB_COLOR_RGB565 = 0,
1418 - OMAPFB_COLOR_YUV422,
1419 - OMAPFB_COLOR_YUV420,
1420 - OMAPFB_COLOR_CLUT_8BPP,
1421 - OMAPFB_COLOR_CLUT_4BPP,
1422 - OMAPFB_COLOR_CLUT_2BPP,
1423 - OMAPFB_COLOR_CLUT_1BPP,
1424 - OMAPFB_COLOR_RGB444,
1425 - OMAPFB_COLOR_YUY422,
1426 -};
1427 -
1428 -struct omapfb_update_window {
1429 - __u32 x, y;
1430 - __u32 width, height;
1431 - __u32 format;
1432 - __u32 out_x, out_y;
1433 - __u32 out_width, out_height;
1434 - __u32 reserved[8];
1435 -};
1436 -
1437 -struct omapfb_update_window_old {
1438 - __u32 x, y;
1439 - __u32 width, height;
1440 - __u32 format;
1441 -};
1442 -
1443 -enum omapfb_plane {
1444 - OMAPFB_PLANE_GFX = 0,
1445 - OMAPFB_PLANE_VID1,
1446 - OMAPFB_PLANE_VID2,
1447 -};
1448 -
1449 -enum omapfb_channel_out {
1450 - OMAPFB_CHANNEL_OUT_LCD = 0,
1451 - OMAPFB_CHANNEL_OUT_DIGIT,
1452 -};
1453 -
1454 -struct omapfb_plane_info {
1455 - __u32 pos_x;
1456 - __u32 pos_y;
1457 - __u8 enabled;
1458 - __u8 channel_out;
1459 - __u8 mirror;
1460 - __u8 reserved1;
1461 - __u32 out_width;
1462 - __u32 out_height;
1463 - __u32 reserved2[12];
1464 -};
1465 -
1466 -struct omapfb_mem_info {
1467 - __u32 size;
1468 - __u8 type;
1469 - __u8 reserved[3];
1470 -};
1471 -
1472 -struct omapfb_caps {
1473 - __u32 ctrl;
1474 - __u32 plane_color;
1475 - __u32 wnd_color;
1476 -};
1477 -
1478 -enum omapfb_color_key_type {
1479 - OMAPFB_COLOR_KEY_DISABLED = 0,
1480 - OMAPFB_COLOR_KEY_GFX_DST,
1481 - OMAPFB_COLOR_KEY_VID_SRC,
1482 -};
1483 -
1484 -struct omapfb_color_key {
1485 - __u8 channel_out;
1486 - __u32 background;
1487 - __u32 trans_key;
1488 - __u8 key_type;
1489 -};
1490 -
1491 -enum omapfb_update_mode {
1492 - OMAPFB_UPDATE_DISABLED = 0,
1493 - OMAPFB_AUTO_UPDATE,
1494 - OMAPFB_MANUAL_UPDATE
1495 -};
1496 -
1497 -#ifdef __KERNEL__
1498 -
1499 -#include <linux/completion.h>
1500 -#include <linux/interrupt.h>
1501 -#include <linux/fb.h>
1502 -#include <linux/mutex.h>
1503 -
1504 -#include <mach/board.h>
1505 -
1506 -#define OMAP_LCDC_INV_VSYNC 0x0001
1507 -#define OMAP_LCDC_INV_HSYNC 0x0002
1508 -#define OMAP_LCDC_INV_PIX_CLOCK 0x0004
1509 -#define OMAP_LCDC_INV_OUTPUT_EN 0x0008
1510 -#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010
1511 -#define OMAP_LCDC_HSVS_OPPOSITE 0x0020
1512 -
1513 -#define OMAP_LCDC_SIGNAL_MASK 0x003f
1514 -
1515 -#define OMAP_LCDC_PANEL_TFT 0x0100
1516 -
1517 -#define OMAPFB_PLANE_XRES_MIN 8
1518 -#define OMAPFB_PLANE_YRES_MIN 8
1519 -
1520 -#ifdef CONFIG_ARCH_OMAP1
1521 -#define OMAPFB_PLANE_NUM 1
1522 -#else
1523 -#define OMAPFB_PLANE_NUM 3
1524 -#endif
1525 -
1526 -struct omapfb_device;
1527 -
1528 -struct lcd_panel {
1529 - const char *name;
1530 - int config; /* TFT/STN, signal inversion */
1531 - int bpp; /* Pixel format in fb mem */
1532 - int data_lines; /* Lines on LCD HW interface */
1533 -
1534 - int x_res, y_res;
1535 - int pixel_clock; /* In kHz */
1536 - int hsw; /* Horizontal synchronization
1537 - pulse width */
1538 - int hfp; /* Horizontal front porch */
1539 - int hbp; /* Horizontal back porch */
1540 - int vsw; /* Vertical synchronization
1541 - pulse width */
1542 - int vfp; /* Vertical front porch */
1543 - int vbp; /* Vertical back porch */
1544 - int acb; /* ac-bias pin frequency */
1545 - int pcd; /* pixel clock divider.
1546 - Obsolete use pixel_clock instead */
1547 -
1548 - int (*init) (struct lcd_panel *panel,
1549 - struct omapfb_device *fbdev);
1550 - void (*cleanup) (struct lcd_panel *panel);
1551 - int (*enable) (struct lcd_panel *panel);
1552 - void (*disable) (struct lcd_panel *panel);
1553 - unsigned long (*get_caps) (struct lcd_panel *panel);
1554 - int (*set_bklight_level)(struct lcd_panel *panel,
1555 - unsigned int level);
1556 - unsigned int (*get_bklight_level)(struct lcd_panel *panel);
1557 - unsigned int (*get_bklight_max) (struct lcd_panel *panel);
1558 - int (*run_test) (struct lcd_panel *panel, int test_num);
1559 -};
1560 -
1561 -struct extif_timings {
1562 - int cs_on_time;
1563 - int cs_off_time;
1564 - int we_on_time;
1565 - int we_off_time;
1566 - int re_on_time;
1567 - int re_off_time;
1568 - int we_cycle_time;
1569 - int re_cycle_time;
1570 - int cs_pulse_width;
1571 - int access_time;
1572 -
1573 - int clk_div;
1574 -
1575 - u32 tim[5]; /* set by extif->convert_timings */
1576 -
1577 - int converted;
1578 -};
1579 -
1580 -struct lcd_ctrl_extif {
1581 - int (*init) (struct omapfb_device *fbdev);
1582 - void (*cleanup) (void);
1583 - void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
1584 - unsigned long (*get_max_tx_rate)(void);
1585 - int (*convert_timings) (struct extif_timings *timings);
1586 - void (*set_timings) (const struct extif_timings *timings);
1587 - void (*set_bits_per_cycle)(int bpc);
1588 - void (*write_command) (const void *buf, unsigned int len);
1589 - void (*read_data) (void *buf, unsigned int len);
1590 - void (*write_data) (const void *buf, unsigned int len);
1591 - void (*transfer_area) (int width, int height,
1592 - void (callback)(void * data), void *data);
1593 - int (*setup_tearsync) (unsigned pin_cnt,
1594 - unsigned hs_pulse_time, unsigned vs_pulse_time,
1595 - int hs_pol_inv, int vs_pol_inv, int div);
1596 - int (*enable_tearsync) (int enable, unsigned line);
1597 -
1598 - unsigned long max_transmit_size;
1599 -};
1600 -
1601 -struct omapfb_notifier_block {
1602 - struct notifier_block nb;
1603 - void *data;
1604 - int plane_idx;
1605 -};
1606 -
1607 -typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
1608 - unsigned long event,
1609 - void *fbi);
1610 -
1611 -struct omapfb_mem_region {
1612 - u32 paddr;
1613 - void __iomem *vaddr;
1614 - unsigned long size;
1615 - u8 type; /* OMAPFB_PLANE_MEM_* */
1616 - unsigned alloc:1; /* allocated by the driver */
1617 - unsigned map:1; /* kernel mapped by the driver */
1618 -};
1619 -
1620 -struct omapfb_mem_desc {
1621 - int region_cnt;
1622 - struct omapfb_mem_region region[OMAPFB_PLANE_NUM];
1623 -};
1624 -
1625 -struct lcd_ctrl {
1626 - const char *name;
1627 - void *data;
1628 -
1629 - int (*init) (struct omapfb_device *fbdev,
1630 - int ext_mode,
1631 - struct omapfb_mem_desc *req_md);
1632 - void (*cleanup) (void);
1633 - void (*bind_client) (struct omapfb_notifier_block *nb);
1634 - void (*get_caps) (int plane, struct omapfb_caps *caps);
1635 - int (*set_update_mode)(enum omapfb_update_mode mode);
1636 - enum omapfb_update_mode (*get_update_mode)(void);
1637 - int (*setup_plane) (int plane, int channel_out,
1638 - unsigned long offset,
1639 - int screen_width,
1640 - int pos_x, int pos_y, int width,
1641 - int height, int color_mode);
1642 - int (*set_rotate) (int angle);
1643 - int (*setup_mem) (int plane, size_t size,
1644 - int mem_type, unsigned long *paddr);
1645 - int (*mmap) (struct fb_info *info,
1646 - struct vm_area_struct *vma);
1647 - int (*set_scale) (int plane,
1648 - int orig_width, int orig_height,
1649 - int out_width, int out_height);
1650 - int (*enable_plane) (int plane, int enable);
1651 - int (*update_window) (struct fb_info *fbi,
1652 - struct omapfb_update_window *win,
1653 - void (*callback)(void *),
1654 - void *callback_data);
1655 - void (*sync) (void);
1656 - void (*suspend) (void);
1657 - void (*resume) (void);
1658 - int (*run_test) (int test_num);
1659 - int (*setcolreg) (u_int regno, u16 red, u16 green,
1660 - u16 blue, u16 transp,
1661 - int update_hw_mem);
1662 - int (*set_color_key) (struct omapfb_color_key *ck);
1663 - int (*get_color_key) (struct omapfb_color_key *ck);
1664 -};
1665 -
1666 -enum omapfb_state {
1667 - OMAPFB_DISABLED = 0,
1668 - OMAPFB_SUSPENDED= 99,
1669 - OMAPFB_ACTIVE = 100
1670 -};
1671 -
1672 -struct omapfb_plane_struct {
1673 - int idx;
1674 - struct omapfb_plane_info info;
1675 - enum omapfb_color_format color_mode;
1676 - struct omapfb_device *fbdev;
1677 -};
1678 -
1679 -struct omapfb_device {
1680 - int state;
1681 - int ext_lcdc; /* Using external
1682 - LCD controller */
1683 - struct mutex rqueue_mutex;
1684 -
1685 - int palette_size;
1686 - u32 pseudo_palette[17];
1687 -
1688 - struct lcd_panel *panel; /* LCD panel */
1689 - const struct lcd_ctrl *ctrl; /* LCD controller */
1690 - const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
1691 - struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
1692 - interface */
1693 - struct device *dev;
1694 - struct fb_var_screeninfo new_var; /* for mode changes */
1695 -
1696 - struct omapfb_mem_desc mem_desc;
1697 - struct fb_info *fb_info[OMAPFB_PLANE_NUM];
1698 -};
1699 -
1700 -struct omapfb_platform_data {
1701 - struct omap_lcd_config lcd;
1702 - struct omapfb_mem_desc mem_desc;
1703 - void *ctrl_platform_data;
1704 -};
1705 -
1706 -#ifdef CONFIG_ARCH_OMAP1
1707 -extern struct lcd_ctrl omap1_lcd_ctrl;
1708 -#else
1709 -extern struct lcd_ctrl omap2_disp_ctrl;
1710 -#endif
1711 -
1712 -extern void omapfb_reserve_sdram(void);
1713 -extern void omapfb_register_panel(struct lcd_panel *panel);
1714 -extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
1715 -extern void omapfb_notify_clients(struct omapfb_device *fbdev,
1716 - unsigned long event);
1717 -extern int omapfb_register_client(struct omapfb_notifier_block *nb,
1718 - omapfb_notifier_callback_t callback,
1719 - void *callback_data);
1720 -extern int omapfb_unregister_client(struct omapfb_notifier_block *nb);
1721 -extern int omapfb_update_window_async(struct fb_info *fbi,
1722 - struct omapfb_update_window *win,
1723 - void (*callback)(void *),
1724 - void *callback_data);
1725 -
1726 -/* in arch/arm/plat-omap/fb.c */
1727 -extern void omapfb_set_ctrl_platform_data(void *pdata);
1728 -
1729 -#endif /* __KERNEL__ */
1730 -
1731 -#endif /* __OMAPFB_H */
1732 --- a/arch/arm/plat-omap/include/mach/sdrc.h
1733 +++ b/arch/arm/plat-omap/include/mach/sdrc.h
1734 @@ -88,7 +88,10 @@
1735
1736 /* SMS register offsets - read/write with sms_{read,write}_reg() */
1737
1738 -#define SMS_SYSCONFIG 0x010
1739 +#define SMS_SYSCONFIG 0x010
1740 +#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context)
1741 +#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context)
1742 +#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context)
1743 /* REVISIT: fill in other SMS registers here */
1744
1745
1746 @@ -121,6 +124,10 @@ int omap2_sdrc_get_params(unsigned long
1747 struct omap_sdrc_params **sdrc_cs0,
1748 struct omap_sdrc_params **sdrc_cs1);
1749
1750 +void omap2_sms_write_rot_control(u32 val, unsigned ctx);
1751 +void omap2_sms_write_rot_size(u32 val, unsigned ctx);
1752 +void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx);
1753 +
1754 #ifdef CONFIG_ARCH_OMAP2
1755
1756 struct memory_timings {
1757 --- /dev/null
1758 +++ b/arch/arm/plat-omap/include/mach/vram.h
1759 @@ -0,0 +1,63 @@
1760 +/*
1761 + * VRAM manager for OMAP
1762 + *
1763 + * Copyright (C) 2009 Nokia Corporation
1764 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
1765 + *
1766 + * This program is free software; you can redistribute it and/or modify
1767 + * it under the terms of the GNU General Public License version 2 as
1768 + * published by the Free Software Foundation.
1769 + *
1770 + * This program is distributed in the hope that it will be useful, but
1771 + * WITHOUT ANY WARRANTY; without even the implied warranty of
1772 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1773 + * General Public License for more details.
1774 + *
1775 + * You should have received a copy of the GNU General Public License along
1776 + * with this program; if not, write to the Free Software Foundation, Inc.,
1777 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
1778 + */
1779 +
1780 +#ifndef __OMAP_VRAM_H__
1781 +#define __OMAP_VRAM_H__
1782 +
1783 +#include <linux/autoconf.h>
1784 +#include <linux/types.h>
1785 +
1786 +#define OMAP_VRAM_MEMTYPE_SDRAM 0
1787 +#define OMAP_VRAM_MEMTYPE_SRAM 1
1788 +#define OMAP_VRAM_MEMTYPE_MAX 1
1789 +
1790 +extern int omap_vram_add_region(unsigned long paddr, size_t size);
1791 +extern int omap_vram_free(unsigned long paddr, size_t size);
1792 +extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr);
1793 +extern int omap_vram_reserve(unsigned long paddr, size_t size);
1794 +extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram,
1795 + unsigned long *largest_free_block);
1796 +
1797 +#ifdef CONFIG_OMAP2_VRAM
1798 +extern void omap_vram_set_sdram_vram(u32 size, u32 start);
1799 +extern void omap_vram_set_sram_vram(u32 size, u32 start);
1800 +
1801 +extern void omap_vram_reserve_sdram(void);
1802 +extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
1803 + unsigned long sram_vstart,
1804 + unsigned long sram_size,
1805 + unsigned long pstart_avail,
1806 + unsigned long size_avail);
1807 +#else
1808 +static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { }
1809 +static inline void omap_vram_set_sram_vram(u32 size, u32 start) { }
1810 +
1811 +static inline void omap_vram_reserve_sdram(void) { }
1812 +static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
1813 + unsigned long sram_vstart,
1814 + unsigned long sram_size,
1815 + unsigned long pstart_avail,
1816 + unsigned long size_avail)
1817 +{
1818 + return 0;
1819 +}
1820 +#endif
1821 +
1822 +#endif
1823 --- /dev/null
1824 +++ b/arch/arm/plat-omap/include/mach/vrfb.h
1825 @@ -0,0 +1,46 @@
1826 +/*
1827 + * VRFB Rotation Engine
1828 + *
1829 + * Copyright (C) 2009 Nokia Corporation
1830 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
1831 + *
1832 + * This program is free software; you can redistribute it and/or modify
1833 + * it under the terms of the GNU General Public License version 2 as
1834 + * published by the Free Software Foundation.
1835 + *
1836 + * This program is distributed in the hope that it will be useful, but
1837 + * WITHOUT ANY WARRANTY; without even the implied warranty of
1838 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1839 + * General Public License for more details.
1840 + *
1841 + * You should have received a copy of the GNU General Public License along
1842 + * with this program; if not, write to the Free Software Foundation, Inc.,
1843 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
1844 + */
1845 +
1846 +#ifndef __OMAP_VRFB_H__
1847 +#define __OMAP_VRFB_H__
1848 +
1849 +#define OMAP_VRFB_LINE_LEN 2048
1850 +
1851 +struct vrfb {
1852 + u8 context;
1853 + void __iomem *vaddr[4];
1854 + unsigned long paddr[4];
1855 + u16 xoffset;
1856 + u16 yoffset;
1857 + u8 bytespp;
1858 +};
1859 +
1860 +extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
1861 +extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
1862 +extern void omap_vrfb_suspend_ctx(struct vrfb *vrfb);
1863 +extern void omap_vrfb_resume_ctx(struct vrfb *vrfb);
1864 +extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
1865 + u8 bytespp);
1866 +extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
1867 + u16 width, u16 height,
1868 + unsigned bytespp, bool yuv_mode);
1869 +extern void omap_vrfb_restore_context(void);
1870 +
1871 +#endif /* __VRFB_H */
1872 --- a/arch/arm/plat-omap/sram.c
1873 +++ b/arch/arm/plat-omap/sram.c
1874 @@ -28,6 +28,7 @@
1875 #include <mach/sram.h>
1876 #include <mach/board.h>
1877 #include <mach/cpu.h>
1878 +#include <mach/vram.h>
1879
1880 #include <mach/control.h>
1881
1882 @@ -185,6 +186,13 @@ void __init omap_detect_sram(void)
1883 omap_sram_start + SRAM_BOOTLOADER_SZ,
1884 omap_sram_size - SRAM_BOOTLOADER_SZ);
1885 omap_sram_size -= reserved;
1886 +
1887 + reserved = omap_vram_reserve_sram(omap_sram_start, omap_sram_base,
1888 + omap_sram_size,
1889 + omap_sram_start + SRAM_BOOTLOADER_SZ,
1890 + omap_sram_size - SRAM_BOOTLOADER_SZ);
1891 + omap_sram_size -= reserved;
1892 +
1893 omap_sram_ceil = omap_sram_base + omap_sram_size;
1894 }
1895
1896 --- a/drivers/video/Kconfig
1897 +++ b/drivers/video/Kconfig
1898 @@ -2161,6 +2161,7 @@ config FB_BROADSHEET
1899 a bridge adapter.
1900
1901 source "drivers/video/omap/Kconfig"
1902 +source "drivers/video/omap2/Kconfig"
1903
1904 source "drivers/video/backlight/Kconfig"
1905 source "drivers/video/display/Kconfig"
1906 --- a/drivers/video/Makefile
1907 +++ b/drivers/video/Makefile
1908 @@ -124,6 +124,7 @@ obj-$(CONFIG_FB_SM501) += sm5
1909 obj-$(CONFIG_FB_XILINX) += xilinxfb.o
1910 obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
1911 obj-$(CONFIG_FB_OMAP) += omap/
1912 +obj-y += omap2/
1913 obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
1914 obj-$(CONFIG_FB_CARMINE) += carminefb.o
1915 obj-$(CONFIG_FB_MB862XX) += mb862xx/
1916 --- a/drivers/video/omap/Kconfig
1917 +++ b/drivers/video/omap/Kconfig
1918 @@ -1,6 +1,7 @@
1919 config FB_OMAP
1920 tristate "OMAP frame buffer support (EXPERIMENTAL)"
1921 - depends on FB && ARCH_OMAP
1922 + depends on FB && ARCH_OMAP && (OMAP2_DSS = "n")
1923 +
1924 select FB_CFB_FILLRECT
1925 select FB_CFB_COPYAREA
1926 select FB_CFB_IMAGEBLIT
1927 @@ -72,7 +73,7 @@ config FB_OMAP_LCD_MIPID
1928
1929 config FB_OMAP_BOOTLOADER_INIT
1930 bool "Check bootloader initialization"
1931 - depends on FB_OMAP
1932 + depends on FB_OMAP || FB_OMAP2
1933 help
1934 Say Y here if you want to enable checking if the bootloader has
1935 already initialized the display controller. In this case the
1936 --- a/drivers/video/omap/blizzard.c
1937 +++ b/drivers/video/omap/blizzard.c
1938 @@ -27,9 +27,9 @@
1939 #include <linux/clk.h>
1940
1941 #include <mach/dma.h>
1942 -#include <mach/omapfb.h>
1943 #include <mach/blizzard.h>
1944
1945 +#include "omapfb.h"
1946 #include "dispc.h"
1947
1948 #define MODULE_NAME "blizzard"
1949 --- a/drivers/video/omap/dispc.c
1950 +++ b/drivers/video/omap/dispc.c
1951 @@ -24,11 +24,12 @@
1952 #include <linux/vmalloc.h>
1953 #include <linux/clk.h>
1954 #include <linux/io.h>
1955 +#include <linux/platform_device.h>
1956
1957 #include <mach/sram.h>
1958 -#include <mach/omapfb.h>
1959 #include <mach/board.h>
1960
1961 +#include "omapfb.h"
1962 #include "dispc.h"
1963
1964 #define MODULE_NAME "dispc"
1965 @@ -188,6 +189,11 @@ static struct {
1966 struct omapfb_color_key color_key;
1967 } dispc;
1968
1969 +static struct platform_device omapdss_device = {
1970 + .name = "omapdss",
1971 + .id = -1,
1972 +};
1973 +
1974 static void enable_lcd_clocks(int enable);
1975
1976 static void inline dispc_write_reg(int idx, u32 val)
1977 @@ -907,20 +913,20 @@ static irqreturn_t omap_dispc_irq_handle
1978
1979 static int get_dss_clocks(void)
1980 {
1981 - dispc.dss_ick = clk_get(dispc.fbdev->dev, "ick");
1982 + dispc.dss_ick = clk_get(&omapdss_device.dev, "ick");
1983 if (IS_ERR(dispc.dss_ick)) {
1984 dev_err(dispc.fbdev->dev, "can't get ick\n");
1985 return PTR_ERR(dispc.dss_ick);
1986 }
1987
1988 - dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck");
1989 + dispc.dss1_fck = clk_get(&omapdss_device.dev, "dss1_fck");
1990 if (IS_ERR(dispc.dss1_fck)) {
1991 dev_err(dispc.fbdev->dev, "can't get dss1_fck\n");
1992 clk_put(dispc.dss_ick);
1993 return PTR_ERR(dispc.dss1_fck);
1994 }
1995
1996 - dispc.dss_54m_fck = clk_get(dispc.fbdev->dev, "tv_fck");
1997 + dispc.dss_54m_fck = clk_get(&omapdss_device.dev, "tv_fck");
1998 if (IS_ERR(dispc.dss_54m_fck)) {
1999 dev_err(dispc.fbdev->dev, "can't get tv_fck\n");
2000 clk_put(dispc.dss_ick);
2001 @@ -1371,6 +1377,12 @@ static int omap_dispc_init(struct omapfb
2002 int skip_init = 0;
2003 int i;
2004
2005 + r = platform_device_register(&omapdss_device);
2006 + if (r) {
2007 + dev_err(fbdev->dev, "can't register omapdss device\n");
2008 + return r;
2009 + }
2010 +
2011 memset(&dispc, 0, sizeof(dispc));
2012
2013 dispc.base = ioremap(DISPC_BASE, SZ_1K);
2014 @@ -1508,6 +1520,7 @@ static void omap_dispc_cleanup(void)
2015 free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
2016 put_dss_clocks();
2017 iounmap(dispc.base);
2018 + platform_device_unregister(&omapdss_device);
2019 }
2020
2021 const struct lcd_ctrl omap2_int_ctrl = {
2022 --- a/drivers/video/omap/hwa742.c
2023 +++ b/drivers/video/omap/hwa742.c
2024 @@ -27,8 +27,8 @@
2025 #include <linux/clk.h>
2026
2027 #include <mach/dma.h>
2028 -#include <mach/omapfb.h>
2029 #include <mach/hwa742.h>
2030 +#include "omapfb.h"
2031
2032 #define HWA742_REV_CODE_REG 0x0
2033 #define HWA742_CONFIG_REG 0x2
2034 --- a/drivers/video/omap/lcd_2430sdp.c
2035 +++ b/drivers/video/omap/lcd_2430sdp.c
2036 @@ -28,9 +28,10 @@
2037 #include <linux/i2c/twl4030.h>
2038
2039 #include <mach/mux.h>
2040 -#include <mach/omapfb.h>
2041 #include <asm/mach-types.h>
2042
2043 +#include "omapfb.h"
2044 +
2045 #define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91
2046 #define SDP2430_LCD_PANEL_ENABLE_GPIO 154
2047 #define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24
2048 --- a/drivers/video/omap/lcd_ams_delta.c
2049 +++ b/drivers/video/omap/lcd_ams_delta.c
2050 @@ -27,7 +27,8 @@
2051
2052 #include <mach/board-ams-delta.h>
2053 #include <mach/hardware.h>
2054 -#include <mach/omapfb.h>
2055 +
2056 +#include "omapfb.h"
2057
2058 #define AMS_DELTA_DEFAULT_CONTRAST 112
2059
2060 --- a/drivers/video/omap/lcd_apollon.c
2061 +++ b/drivers/video/omap/lcd_apollon.c
2062 @@ -26,7 +26,8 @@
2063
2064 #include <mach/gpio.h>
2065 #include <mach/mux.h>
2066 -#include <mach/omapfb.h>
2067 +
2068 +#include "omapfb.h"
2069
2070 /* #define USE_35INCH_LCD 1 */
2071
2072 --- a/drivers/video/omap/lcd_h3.c
2073 +++ b/drivers/video/omap/lcd_h3.c
2074 @@ -24,7 +24,7 @@
2075 #include <linux/i2c/tps65010.h>
2076
2077 #include <mach/gpio.h>
2078 -#include <mach/omapfb.h>
2079 +#include "omapfb.h"
2080
2081 #define MODULE_NAME "omapfb-lcd_h3"
2082
2083 --- a/drivers/video/omap/lcd_h4.c
2084 +++ b/drivers/video/omap/lcd_h4.c
2085 @@ -22,7 +22,7 @@
2086 #include <linux/module.h>
2087 #include <linux/platform_device.h>
2088
2089 -#include <mach/omapfb.h>
2090 +#include "omapfb.h"
2091
2092 static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
2093 {
2094 --- a/drivers/video/omap/lcd_inn1510.c
2095 +++ b/drivers/video/omap/lcd_inn1510.c
2096 @@ -24,7 +24,7 @@
2097 #include <linux/io.h>
2098
2099 #include <mach/fpga.h>
2100 -#include <mach/omapfb.h>
2101 +#include "omapfb.h"
2102
2103 static int innovator1510_panel_init(struct lcd_panel *panel,
2104 struct omapfb_device *fbdev)
2105 --- a/drivers/video/omap/lcd_inn1610.c
2106 +++ b/drivers/video/omap/lcd_inn1610.c
2107 @@ -23,7 +23,7 @@
2108 #include <linux/platform_device.h>
2109
2110 #include <mach/gpio.h>
2111 -#include <mach/omapfb.h>
2112 +#include "omapfb.h"
2113
2114 #define MODULE_NAME "omapfb-lcd_h3"
2115
2116 --- a/drivers/video/omap/lcd_ldp.c
2117 +++ b/drivers/video/omap/lcd_ldp.c
2118 @@ -28,9 +28,10 @@
2119
2120 #include <mach/gpio.h>
2121 #include <mach/mux.h>
2122 -#include <mach/omapfb.h>
2123 #include <asm/mach-types.h>
2124
2125 +#include "omapfb.h"
2126 +
2127 #define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES)
2128 #define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES)
2129
2130 --- a/drivers/video/omap/lcd_mipid.c
2131 +++ b/drivers/video/omap/lcd_mipid.c
2132 @@ -23,9 +23,10 @@
2133 #include <linux/workqueue.h>
2134 #include <linux/spi/spi.h>
2135
2136 -#include <mach/omapfb.h>
2137 #include <mach/lcd_mipid.h>
2138
2139 +#include "omapfb.h"
2140 +
2141 #define MIPID_MODULE_NAME "lcd_mipid"
2142
2143 #define MIPID_CMD_READ_DISP_ID 0x04
2144 --- a/drivers/video/omap/lcd_omap2evm.c
2145 +++ b/drivers/video/omap/lcd_omap2evm.c
2146 @@ -27,9 +27,10 @@
2147 #include <linux/i2c/twl4030.h>
2148
2149 #include <mach/mux.h>
2150 -#include <mach/omapfb.h>
2151 #include <asm/mach-types.h>
2152
2153 +#include "omapfb.h"
2154 +
2155 #define LCD_PANEL_ENABLE_GPIO 154
2156 #define LCD_PANEL_LR 128
2157 #define LCD_PANEL_UD 129
2158 --- a/drivers/video/omap/lcd_omap3beagle.c
2159 +++ b/drivers/video/omap/lcd_omap3beagle.c
2160 @@ -26,9 +26,10 @@
2161 #include <linux/i2c/twl4030.h>
2162
2163 #include <mach/mux.h>
2164 -#include <mach/omapfb.h>
2165 #include <asm/mach-types.h>
2166
2167 +#include "omapfb.h"
2168 +
2169 #define LCD_PANEL_ENABLE_GPIO 170
2170
2171 static int omap3beagle_panel_init(struct lcd_panel *panel,
2172 --- a/drivers/video/omap/lcd_omap3evm.c
2173 +++ b/drivers/video/omap/lcd_omap3evm.c
2174 @@ -26,9 +26,10 @@
2175 #include <linux/i2c/twl4030.h>
2176
2177 #include <mach/mux.h>
2178 -#include <mach/omapfb.h>
2179 #include <asm/mach-types.h>
2180
2181 +#include "omapfb.h"
2182 +
2183 #define LCD_PANEL_ENABLE_GPIO 153
2184 #define LCD_PANEL_LR 2
2185 #define LCD_PANEL_UD 3
2186 --- a/drivers/video/omap/lcd_osk.c
2187 +++ b/drivers/video/omap/lcd_osk.c
2188 @@ -25,7 +25,7 @@
2189
2190 #include <mach/gpio.h>
2191 #include <mach/mux.h>
2192 -#include <mach/omapfb.h>
2193 +#include "omapfb.h"
2194
2195 static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
2196 {
2197 --- a/drivers/video/omap/lcd_overo.c
2198 +++ b/drivers/video/omap/lcd_overo.c
2199 @@ -25,9 +25,10 @@
2200
2201 #include <mach/gpio.h>
2202 #include <mach/mux.h>
2203 -#include <mach/omapfb.h>
2204 #include <asm/mach-types.h>
2205
2206 +#include "omapfb.h"
2207 +
2208 #define LCD_ENABLE 144
2209
2210 static int overo_panel_init(struct lcd_panel *panel,
2211 --- a/drivers/video/omap/lcd_palmte.c
2212 +++ b/drivers/video/omap/lcd_palmte.c
2213 @@ -24,7 +24,7 @@
2214 #include <linux/io.h>
2215
2216 #include <mach/fpga.h>
2217 -#include <mach/omapfb.h>
2218 +#include "omapfb.h"
2219
2220 static int palmte_panel_init(struct lcd_panel *panel,
2221 struct omapfb_device *fbdev)
2222 --- a/drivers/video/omap/lcd_palmtt.c
2223 +++ b/drivers/video/omap/lcd_palmtt.c
2224 @@ -30,7 +30,7 @@ GPIO13 - screen blanking
2225 #include <linux/io.h>
2226
2227 #include <mach/gpio.h>
2228 -#include <mach/omapfb.h>
2229 +#include "omapfb.h"
2230
2231 static int palmtt_panel_init(struct lcd_panel *panel,
2232 struct omapfb_device *fbdev)
2233 --- a/drivers/video/omap/lcd_palmz71.c
2234 +++ b/drivers/video/omap/lcd_palmz71.c
2235 @@ -24,7 +24,7 @@
2236 #include <linux/platform_device.h>
2237 #include <linux/io.h>
2238
2239 -#include <mach/omapfb.h>
2240 +#include "omapfb.h"
2241
2242 static int palmz71_panel_init(struct lcd_panel *panel,
2243 struct omapfb_device *fbdev)
2244 --- a/drivers/video/omap/lcdc.c
2245 +++ b/drivers/video/omap/lcdc.c
2246 @@ -30,10 +30,11 @@
2247 #include <linux/clk.h>
2248
2249 #include <mach/dma.h>
2250 -#include <mach/omapfb.h>
2251
2252 #include <asm/mach-types.h>
2253
2254 +#include "omapfb.h"
2255 +
2256 #include "lcdc.h"
2257
2258 #define MODULE_NAME "lcdc"
2259 --- /dev/null
2260 +++ b/drivers/video/omap/omapfb.h
2261 @@ -0,0 +1,227 @@
2262 +/*
2263 + * File: drivers/video/omap/omapfb.h
2264 + *
2265 + * Framebuffer driver for TI OMAP boards
2266 + *
2267 + * Copyright (C) 2004 Nokia Corporation
2268 + * Author: Imre Deak <imre.deak@nokia.com>
2269 + *
2270 + * This program is free software; you can redistribute it and/or modify it
2271 + * under the terms of the GNU General Public License as published by the
2272 + * Free Software Foundation; either version 2 of the License, or (at your
2273 + * option) any later version.
2274 + *
2275 + * This program is distributed in the hope that it will be useful, but
2276 + * WITHOUT ANY WARRANTY; without even the implied warranty of
2277 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2278 + * General Public License for more details.
2279 + *
2280 + * You should have received a copy of the GNU General Public License along
2281 + * with this program; if not, write to the Free Software Foundation, Inc.,
2282 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
2283 + */
2284 +
2285 +#ifndef __OMAPFB_H
2286 +#define __OMAPFB_H
2287 +
2288 +#include <linux/fb.h>
2289 +#include <linux/mutex.h>
2290 +#include <linux/omapfb.h>
2291 +
2292 +#define OMAPFB_EVENT_READY 1
2293 +#define OMAPFB_EVENT_DISABLED 2
2294 +
2295 +#define OMAP_LCDC_INV_VSYNC 0x0001
2296 +#define OMAP_LCDC_INV_HSYNC 0x0002
2297 +#define OMAP_LCDC_INV_PIX_CLOCK 0x0004
2298 +#define OMAP_LCDC_INV_OUTPUT_EN 0x0008
2299 +#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010
2300 +#define OMAP_LCDC_HSVS_OPPOSITE 0x0020
2301 +
2302 +#define OMAP_LCDC_SIGNAL_MASK 0x003f
2303 +
2304 +#define OMAP_LCDC_PANEL_TFT 0x0100
2305 +
2306 +#define OMAPFB_PLANE_XRES_MIN 8
2307 +#define OMAPFB_PLANE_YRES_MIN 8
2308 +
2309 +struct omapfb_device;
2310 +
2311 +struct lcd_panel {
2312 + const char *name;
2313 + int config; /* TFT/STN, signal inversion */
2314 + int bpp; /* Pixel format in fb mem */
2315 + int data_lines; /* Lines on LCD HW interface */
2316 +
2317 + int x_res, y_res;
2318 + int pixel_clock; /* In kHz */
2319 + int hsw; /* Horizontal synchronization
2320 + pulse width */
2321 + int hfp; /* Horizontal front porch */
2322 + int hbp; /* Horizontal back porch */
2323 + int vsw; /* Vertical synchronization
2324 + pulse width */
2325 + int vfp; /* Vertical front porch */
2326 + int vbp; /* Vertical back porch */
2327 + int acb; /* ac-bias pin frequency */
2328 + int pcd; /* pixel clock divider.
2329 + Obsolete use pixel_clock instead */
2330 +
2331 + int (*init) (struct lcd_panel *panel,
2332 + struct omapfb_device *fbdev);
2333 + void (*cleanup) (struct lcd_panel *panel);
2334 + int (*enable) (struct lcd_panel *panel);
2335 + void (*disable) (struct lcd_panel *panel);
2336 + unsigned long (*get_caps) (struct lcd_panel *panel);
2337 + int (*set_bklight_level)(struct lcd_panel *panel,
2338 + unsigned int level);
2339 + unsigned int (*get_bklight_level)(struct lcd_panel *panel);
2340 + unsigned int (*get_bklight_max) (struct lcd_panel *panel);
2341 + int (*run_test) (struct lcd_panel *panel, int test_num);
2342 +};
2343 +
2344 +struct extif_timings {
2345 + int cs_on_time;
2346 + int cs_off_time;
2347 + int we_on_time;
2348 + int we_off_time;
2349 + int re_on_time;
2350 + int re_off_time;
2351 + int we_cycle_time;
2352 + int re_cycle_time;
2353 + int cs_pulse_width;
2354 + int access_time;
2355 +
2356 + int clk_div;
2357 +
2358 + u32 tim[5]; /* set by extif->convert_timings */
2359 +
2360 + int converted;
2361 +};
2362 +
2363 +struct lcd_ctrl_extif {
2364 + int (*init) (struct omapfb_device *fbdev);
2365 + void (*cleanup) (void);
2366 + void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div);
2367 + unsigned long (*get_max_tx_rate)(void);
2368 + int (*convert_timings) (struct extif_timings *timings);
2369 + void (*set_timings) (const struct extif_timings *timings);
2370 + void (*set_bits_per_cycle)(int bpc);
2371 + void (*write_command) (const void *buf, unsigned int len);
2372 + void (*read_data) (void *buf, unsigned int len);
2373 + void (*write_data) (const void *buf, unsigned int len);
2374 + void (*transfer_area) (int width, int height,
2375 + void (callback)(void *data), void *data);
2376 + int (*setup_tearsync) (unsigned pin_cnt,
2377 + unsigned hs_pulse_time, unsigned vs_pulse_time,
2378 + int hs_pol_inv, int vs_pol_inv, int div);
2379 + int (*enable_tearsync) (int enable, unsigned line);
2380 +
2381 + unsigned long max_transmit_size;
2382 +};
2383 +
2384 +struct omapfb_notifier_block {
2385 + struct notifier_block nb;
2386 + void *data;
2387 + int plane_idx;
2388 +};
2389 +
2390 +typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
2391 + unsigned long event,
2392 + void *fbi);
2393 +
2394 +struct lcd_ctrl {
2395 + const char *name;
2396 + void *data;
2397 +
2398 + int (*init) (struct omapfb_device *fbdev,
2399 + int ext_mode,
2400 + struct omapfb_mem_desc *req_md);
2401 + void (*cleanup) (void);
2402 + void (*bind_client) (struct omapfb_notifier_block *nb);
2403 + void (*get_caps) (int plane, struct omapfb_caps *caps);
2404 + int (*set_update_mode)(enum omapfb_update_mode mode);
2405 + enum omapfb_update_mode (*get_update_mode)(void);
2406 + int (*setup_plane) (int plane, int channel_out,
2407 + unsigned long offset,
2408 + int screen_width,
2409 + int pos_x, int pos_y, int width,
2410 + int height, int color_mode);
2411 + int (*set_rotate) (int angle);
2412 + int (*setup_mem) (int plane, size_t size,
2413 + int mem_type, unsigned long *paddr);
2414 + int (*mmap) (struct fb_info *info,
2415 + struct vm_area_struct *vma);
2416 + int (*set_scale) (int plane,
2417 + int orig_width, int orig_height,
2418 + int out_width, int out_height);
2419 + int (*enable_plane) (int plane, int enable);
2420 + int (*update_window) (struct fb_info *fbi,
2421 + struct omapfb_update_window *win,
2422 + void (*callback)(void *),
2423 + void *callback_data);
2424 + void (*sync) (void);
2425 + void (*suspend) (void);
2426 + void (*resume) (void);
2427 + int (*run_test) (int test_num);
2428 + int (*setcolreg) (u_int regno, u16 red, u16 green,
2429 + u16 blue, u16 transp,
2430 + int update_hw_mem);
2431 + int (*set_color_key) (struct omapfb_color_key *ck);
2432 + int (*get_color_key) (struct omapfb_color_key *ck);
2433 +};
2434 +
2435 +enum omapfb_state {
2436 + OMAPFB_DISABLED = 0,
2437 + OMAPFB_SUSPENDED = 99,
2438 + OMAPFB_ACTIVE = 100
2439 +};
2440 +
2441 +struct omapfb_plane_struct {
2442 + int idx;
2443 + struct omapfb_plane_info info;
2444 + enum omapfb_color_format color_mode;
2445 + struct omapfb_device *fbdev;
2446 +};
2447 +
2448 +struct omapfb_device {
2449 + int state;
2450 + int ext_lcdc; /* Using external
2451 + LCD controller */
2452 + struct mutex rqueue_mutex;
2453 +
2454 + int palette_size;
2455 + u32 pseudo_palette[17];
2456 +
2457 + struct lcd_panel *panel; /* LCD panel */
2458 + const struct lcd_ctrl *ctrl; /* LCD controller */
2459 + const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */
2460 + struct lcd_ctrl_extif *ext_if; /* LCD ctrl external
2461 + interface */
2462 + struct device *dev;
2463 + struct fb_var_screeninfo new_var; /* for mode changes */
2464 +
2465 + struct omapfb_mem_desc mem_desc;
2466 + struct fb_info *fb_info[OMAPFB_PLANE_NUM];
2467 +};
2468 +
2469 +#ifdef CONFIG_ARCH_OMAP1
2470 +extern struct lcd_ctrl omap1_lcd_ctrl;
2471 +#else
2472 +extern struct lcd_ctrl omap2_disp_ctrl;
2473 +#endif
2474 +
2475 +extern void omapfb_register_panel(struct lcd_panel *panel);
2476 +extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
2477 +extern void omapfb_notify_clients(struct omapfb_device *fbdev,
2478 + unsigned long event);
2479 +extern int omapfb_register_client(struct omapfb_notifier_block *nb,
2480 + omapfb_notifier_callback_t callback,
2481 + void *callback_data);
2482 +extern int omapfb_unregister_client(struct omapfb_notifier_block *nb);
2483 +extern int omapfb_update_window_async(struct fb_info *fbi,
2484 + struct omapfb_update_window *win,
2485 + void (*callback)(void *),
2486 + void *callback_data);
2487 +
2488 +#endif /* __OMAPFB_H */
2489 --- a/drivers/video/omap/omapfb_main.c
2490 +++ b/drivers/video/omap/omapfb_main.c
2491 @@ -29,8 +29,8 @@
2492 #include <linux/uaccess.h>
2493
2494 #include <mach/dma.h>
2495 -#include <mach/omapfb.h>
2496
2497 +#include "omapfb.h"
2498 #include "lcdc.h"
2499 #include "dispc.h"
2500
2501 --- a/drivers/video/omap/rfbi.c
2502 +++ b/drivers/video/omap/rfbi.c
2503 @@ -27,8 +27,7 @@
2504 #include <linux/clk.h>
2505 #include <linux/io.h>
2506
2507 -#include <mach/omapfb.h>
2508 -
2509 +#include "omapfb.h"
2510 #include "dispc.h"
2511
2512 /* To work around an RFBI transfer rate limitation */
2513 --- a/drivers/video/omap/sossi.c
2514 +++ b/drivers/video/omap/sossi.c
2515 @@ -25,8 +25,8 @@
2516 #include <linux/io.h>
2517
2518 #include <mach/dma.h>
2519 -#include <mach/omapfb.h>
2520
2521 +#include "omapfb.h"
2522 #include "lcdc.h"
2523
2524 #define MODULE_NAME "omapfb-sossi"
2525 --- /dev/null
2526 +++ b/drivers/video/omap2/Kconfig
2527 @@ -0,0 +1,9 @@
2528 +config OMAP2_VRAM
2529 + bool
2530 +
2531 +config OMAP2_VRFB
2532 + bool
2533 +
2534 +source "drivers/video/omap2/dss/Kconfig"
2535 +source "drivers/video/omap2/omapfb/Kconfig"
2536 +source "drivers/video/omap2/displays/Kconfig"
2537 --- /dev/null
2538 +++ b/drivers/video/omap2/Makefile
2539 @@ -0,0 +1,6 @@
2540 +obj-$(CONFIG_OMAP2_VRAM) += vram.o
2541 +obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
2542 +
2543 +obj-y += dss/
2544 +obj-y += omapfb/
2545 +obj-y += displays/
2546 --- /dev/null
2547 +++ b/drivers/video/omap2/displays/Kconfig
2548 @@ -0,0 +1,28 @@
2549 +menu "OMAP2/3 Display Device Drivers"
2550 + depends on OMAP2_DSS
2551 +
2552 +config PANEL_GENERIC
2553 + tristate "Generic Panel"
2554 + help
2555 + Generic panel driver.
2556 + Used for DVI output for Beagle and OMAP3 SDP.
2557 +
2558 +config PANEL_SAMSUNG_LTE430WQ_F0C
2559 + tristate "Samsung LTE430WQ-F0C LCD Panel"
2560 + depends on OMAP2_DSS
2561 + help
2562 + LCD Panel used on Overo Palo43
2563 +
2564 +config PANEL_SHARP_LS037V7DW01
2565 + tristate "Sharp LS037V7DW01 LCD Panel"
2566 + depends on OMAP2_DSS
2567 + help
2568 + LCD Panel used in TI's SDP3430 and EVM boards
2569 +
2570 +config PANEL_TAAL
2571 + tristate "Taal DSI Panel"
2572 + depends on OMAP2_DSS_DSI
2573 + help
2574 + Taal DSI command mode panel from TPO.
2575 +
2576 +endmenu
2577 --- /dev/null
2578 +++ b/drivers/video/omap2/displays/Makefile
2579 @@ -0,0 +1,5 @@
2580 +obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o
2581 +obj-$(CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C) += panel-samsung-lte430wq-f0c.o
2582 +obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
2583 +
2584 +obj-$(CONFIG_PANEL_TAAL) += panel-taal.o
2585 --- /dev/null
2586 +++ b/drivers/video/omap2/displays/panel-generic.c
2587 @@ -0,0 +1,104 @@
2588 +/*
2589 + * Generic panel support
2590 + *
2591 + * Copyright (C) 2008 Nokia Corporation
2592 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2593 + *
2594 + * This program is free software; you can redistribute it and/or modify it
2595 + * under the terms of the GNU General Public License version 2 as published by
2596 + * the Free Software Foundation.
2597 + *
2598 + * This program is distributed in the hope that it will be useful, but WITHOUT
2599 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2600 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2601 + * more details.
2602 + *
2603 + * You should have received a copy of the GNU General Public License along with
2604 + * this program. If not, see <http://www.gnu.org/licenses/>.
2605 + */
2606 +
2607 +#include <linux/module.h>
2608 +#include <linux/delay.h>
2609 +
2610 +#include <mach/display.h>
2611 +
2612 +static struct omap_video_timings generic_panel_timings = {
2613 + /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
2614 + .x_res = 640,
2615 + .y_res = 480,
2616 + .pixel_clock = 23500,
2617 + .hfp = 48,
2618 + .hsw = 32,
2619 + .hbp = 80,
2620 + .vfp = 3,
2621 + .vsw = 4,
2622 + .vbp = 7,
2623 +};
2624 +
2625 +static int generic_panel_probe(struct omap_dss_device *dssdev)
2626 +{
2627 + dssdev->panel.config = OMAP_DSS_LCD_TFT;
2628 + dssdev->panel.timings = generic_panel_timings;
2629 +
2630 + return 0;
2631 +}
2632 +
2633 +static void generic_panel_remove(struct omap_dss_device *dssdev)
2634 +{
2635 +}
2636 +
2637 +static int generic_panel_enable(struct omap_dss_device *dssdev)
2638 +{
2639 + int r = 0;
2640 +
2641 + if (dssdev->platform_enable)
2642 + r = dssdev->platform_enable(dssdev);
2643 +
2644 + return r;
2645 +}
2646 +
2647 +static void generic_panel_disable(struct omap_dss_device *dssdev)
2648 +{
2649 + if (dssdev->platform_disable)
2650 + dssdev->platform_disable(dssdev);
2651 +}
2652 +
2653 +static int generic_panel_suspend(struct omap_dss_device *dssdev)
2654 +{
2655 + generic_panel_disable(dssdev);
2656 + return 0;
2657 +}
2658 +
2659 +static int generic_panel_resume(struct omap_dss_device *dssdev)
2660 +{
2661 + return generic_panel_enable(dssdev);
2662 +}
2663 +
2664 +static struct omap_dss_driver generic_driver = {
2665 + .probe = generic_panel_probe,
2666 + .remove = generic_panel_remove,
2667 +
2668 + .enable = generic_panel_enable,
2669 + .disable = generic_panel_disable,
2670 + .suspend = generic_panel_suspend,
2671 + .resume = generic_panel_resume,
2672 +
2673 + .driver = {
2674 + .name = "generic_panel",
2675 + .owner = THIS_MODULE,
2676 + },
2677 +};
2678 +
2679 +static int __init generic_panel_drv_init(void)
2680 +{
2681 + return omap_dss_register_driver(&generic_driver);
2682 +}
2683 +
2684 +static void __exit generic_panel_drv_exit(void)
2685 +{
2686 + omap_dss_unregister_driver(&generic_driver);
2687 +}
2688 +
2689 +module_init(generic_panel_drv_init);
2690 +module_exit(generic_panel_drv_exit);
2691 +MODULE_LICENSE("GPL");
2692 --- /dev/null
2693 +++ b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
2694 @@ -0,0 +1,113 @@
2695 +/*
2696 + * LCD panel driver for Samsung LTE430WQ-F0C
2697 + *
2698 + * Author: Steve Sakoman <steve@sakoman.com>
2699 + *
2700 + * This program is free software; you can redistribute it and/or modify it
2701 + * under the terms of the GNU General Public License version 2 as published by
2702 + * the Free Software Foundation.
2703 + *
2704 + * This program is distributed in the hope that it will be useful, but WITHOUT
2705 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2706 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2707 + * more details.
2708 + *
2709 + * You should have received a copy of the GNU General Public License along with
2710 + * this program. If not, see <http://www.gnu.org/licenses/>.
2711 + */
2712 +
2713 +#include <linux/module.h>
2714 +#include <linux/delay.h>
2715 +
2716 +#include <mach/display.h>
2717 +
2718 +static struct omap_video_timings samsung_lte_timings = {
2719 + .x_res = 480,
2720 + .y_res = 272,
2721 +
2722 + .pixel_clock = 9200,
2723 +
2724 + .hsw = 41,
2725 + .hfp = 8,
2726 + .hbp = 45-41,
2727 +
2728 + .vsw = 10,
2729 + .vfp = 4,
2730 + .vbp = 12-10,
2731 +};
2732 +
2733 +static int samsung_lte_panel_probe(struct omap_dss_device *dssdev)
2734 +{
2735 + dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
2736 + OMAP_DSS_LCD_IHS;
2737 + dssdev->panel.timings = samsung_lte_timings;
2738 +
2739 + return 0;
2740 +}
2741 +
2742 +static void samsung_lte_panel_remove(struct omap_dss_device *dssdev)
2743 +{
2744 +}
2745 +
2746 +static int samsung_lte_panel_enable(struct omap_dss_device *dssdev)
2747 +{
2748 + int r = 0;
2749 +
2750 + /* wait couple of vsyncs until enabling the LCD */
2751 + msleep(50);
2752 +
2753 + if (dssdev->platform_enable)
2754 + r = dssdev->platform_enable(dssdev);
2755 +
2756 + return r;
2757 +}
2758 +
2759 +static void samsung_lte_panel_disable(struct omap_dss_device *dssdev)
2760 +{
2761 + if (dssdev->platform_disable)
2762 + dssdev->platform_disable(dssdev);
2763 +
2764 + /* wait at least 5 vsyncs after disabling the LCD */
2765 +
2766 + msleep(100);
2767 +}
2768 +
2769 +static int samsung_lte_panel_suspend(struct omap_dss_device *dssdev)
2770 +{
2771 + samsung_lte_panel_disable(dssdev);
2772 + return 0;
2773 +}
2774 +
2775 +static int samsung_lte_panel_resume(struct omap_dss_device *dssdev)
2776 +{
2777 + return samsung_lte_panel_enable(dssdev);
2778 +}
2779 +
2780 +static struct omap_dss_driver samsung_lte_driver = {
2781 + .probe = samsung_lte_panel_probe,
2782 + .remove = samsung_lte_panel_remove,
2783 +
2784 + .enable = samsung_lte_panel_enable,
2785 + .disable = samsung_lte_panel_disable,
2786 + .suspend = samsung_lte_panel_suspend,
2787 + .resume = samsung_lte_panel_resume,
2788 +
2789 + .driver = {
2790 + .name = "samsung_lte_panel",
2791 + .owner = THIS_MODULE,
2792 + },
2793 +};
2794 +
2795 +static int __init samsung_lte_panel_drv_init(void)
2796 +{
2797 + return omap_dss_register_driver(&samsung_lte_driver);
2798 +}
2799 +
2800 +static void __exit samsung_lte_panel_drv_exit(void)
2801 +{
2802 + omap_dss_unregister_driver(&samsung_lte_driver);
2803 +}
2804 +
2805 +module_init(samsung_lte_panel_drv_init);
2806 +module_exit(samsung_lte_panel_drv_exit);
2807 +MODULE_LICENSE("GPL");
2808 --- /dev/null
2809 +++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
2810 @@ -0,0 +1,153 @@
2811 +/*
2812 + * LCD panel driver for Sharp LS037V7DW01
2813 + *
2814 + * Copyright (C) 2008 Nokia Corporation
2815 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2816 + *
2817 + * This program is free software; you can redistribute it and/or modify it
2818 + * under the terms of the GNU General Public License version 2 as published by
2819 + * the Free Software Foundation.
2820 + *
2821 + * This program is distributed in the hope that it will be useful, but WITHOUT
2822 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2823 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2824 + * more details.
2825 + *
2826 + * You should have received a copy of the GNU General Public License along with
2827 + * this program. If not, see <http://www.gnu.org/licenses/>.
2828 + */
2829 +
2830 +#include <linux/module.h>
2831 +#include <linux/delay.h>
2832 +#include <linux/device.h>
2833 +#include <linux/regulator/consumer.h>
2834 +#include <linux/err.h>
2835 +
2836 +#include <mach/display.h>
2837 +
2838 +struct sharp_data {
2839 + /* XXX This regulator should actually be in SDP board file, not here,
2840 + * as it doesn't actually power the LCD, but something else that
2841 + * affects the output to LCD (I think. Somebody clarify). It doesn't do
2842 + * harm here, as SDP is the only board using this currently */
2843 + struct regulator *vdvi_reg;
2844 +};
2845 +
2846 +static struct omap_video_timings sharp_ls_timings = {
2847 + .x_res = 480,
2848 + .y_res = 640,
2849 +
2850 + .pixel_clock = 19200,
2851 +
2852 + .hsw = 2,
2853 + .hfp = 1,
2854 + .hbp = 28,
2855 +
2856 + .vsw = 1,
2857 + .vfp = 1,
2858 + .vbp = 1,
2859 +};
2860 +
2861 +static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
2862 +{
2863 + struct sharp_data *sd;
2864 +
2865 + dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
2866 + OMAP_DSS_LCD_IHS;
2867 + dssdev->panel.acb = 0x28;
2868 + dssdev->panel.timings = sharp_ls_timings;
2869 +
2870 + sd = kzalloc(sizeof(*sd), GFP_KERNEL);
2871 + if (!sd)
2872 + return -ENOMEM;
2873 +
2874 + dev_set_drvdata(&dssdev->dev, sd);
2875 +
2876 + sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi");
2877 + if (IS_ERR(sd->vdvi_reg)) {
2878 + kfree(sd);
2879 + pr_err("failed to get VDVI regulator\n");
2880 + return PTR_ERR(sd->vdvi_reg);
2881 + }
2882 +
2883 + return 0;
2884 +}
2885 +
2886 +static void sharp_ls_panel_remove(struct omap_dss_device *dssdev)
2887 +{
2888 + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
2889 +
2890 + regulator_put(sd->vdvi_reg);
2891 +
2892 + kfree(sd);
2893 +}
2894 +
2895 +static int sharp_ls_panel_enable(struct omap_dss_device *dssdev)
2896 +{
2897 + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
2898 + int r = 0;
2899 +
2900 + /* wait couple of vsyncs until enabling the LCD */
2901 + msleep(50);
2902 +
2903 + regulator_enable(sd->vdvi_reg);
2904 +
2905 + if (dssdev->platform_enable)
2906 + r = dssdev->platform_enable(dssdev);
2907 +
2908 + return r;
2909 +}
2910 +
2911 +static void sharp_ls_panel_disable(struct omap_dss_device *dssdev)
2912 +{
2913 + struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
2914 +
2915 + if (dssdev->platform_disable)
2916 + dssdev->platform_disable(dssdev);
2917 +
2918 + regulator_disable(sd->vdvi_reg);
2919 +
2920 + /* wait at least 5 vsyncs after disabling the LCD */
2921 +
2922 + msleep(100);
2923 +}
2924 +
2925 +static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev)
2926 +{
2927 + sharp_ls_panel_disable(dssdev);
2928 + return 0;
2929 +}
2930 +
2931 +static int sharp_ls_panel_resume(struct omap_dss_device *dssdev)
2932 +{
2933 + return sharp_ls_panel_enable(dssdev);
2934 +}
2935 +
2936 +static struct omap_dss_driver sharp_ls_driver = {
2937 + .probe = sharp_ls_panel_probe,
2938 + .remove = sharp_ls_panel_remove,
2939 +
2940 + .enable = sharp_ls_panel_enable,
2941 + .disable = sharp_ls_panel_disable,
2942 + .suspend = sharp_ls_panel_suspend,
2943 + .resume = sharp_ls_panel_resume,
2944 +
2945 + .driver = {
2946 + .name = "sharp_ls_panel",
2947 + .owner = THIS_MODULE,
2948 + },
2949 +};
2950 +
2951 +static int __init sharp_ls_panel_drv_init(void)
2952 +{
2953 + return omap_dss_register_driver(&sharp_ls_driver);
2954 +}
2955 +
2956 +static void __exit sharp_ls_panel_drv_exit(void)
2957 +{
2958 + omap_dss_unregister_driver(&sharp_ls_driver);
2959 +}
2960 +
2961 +module_init(sharp_ls_panel_drv_init);
2962 +module_exit(sharp_ls_panel_drv_exit);
2963 +MODULE_LICENSE("GPL");
2964 --- /dev/null
2965 +++ b/drivers/video/omap2/displays/panel-taal.c
2966 @@ -0,0 +1,900 @@
2967 +/*
2968 + * Taal DSI command mode panel
2969 + *
2970 + * Copyright (C) 2009 Nokia Corporation
2971 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2972 + *
2973 + * This program is free software; you can redistribute it and/or modify it
2974 + * under the terms of the GNU General Public License version 2 as published by
2975 + * the Free Software Foundation.
2976 + *
2977 + * This program is distributed in the hope that it will be useful, but WITHOUT
2978 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2979 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2980 + * more details.
2981 + *
2982 + * You should have received a copy of the GNU General Public License along with
2983 + * this program. If not, see <http://www.gnu.org/licenses/>.
2984 + */
2985 +
2986 +/*#define DEBUG*/
2987 +
2988 +#include <linux/module.h>
2989 +#include <linux/delay.h>
2990 +#include <linux/err.h>
2991 +#include <linux/jiffies.h>
2992 +#include <linux/sched.h>
2993 +#include <linux/backlight.h>
2994 +#include <linux/fb.h>
2995 +#include <linux/interrupt.h>
2996 +#include <linux/gpio.h>
2997 +#include <linux/completion.h>
2998 +
2999 +#include <mach/display.h>
3000 +
3001 +/* DSI Virtual channel. Hardcoded for now. */
3002 +#define TCH 0
3003 +
3004 +#define DCS_READ_NUM_ERRORS 0x05
3005 +#define DCS_READ_POWER_MODE 0x0a
3006 +#define DCS_READ_MADCTL 0x0b
3007 +#define DCS_READ_PIXEL_FORMAT 0x0c
3008 +#define DCS_SLEEP_IN 0x10
3009 +#define DCS_SLEEP_OUT 0x11
3010 +#define DCS_DISPLAY_OFF 0x28
3011 +#define DCS_DISPLAY_ON 0x29
3012 +#define DCS_COLUMN_ADDR 0x2a
3013 +#define DCS_PAGE_ADDR 0x2b
3014 +#define DCS_MEMORY_WRITE 0x2c
3015 +#define DCS_TEAR_OFF 0x34
3016 +#define DCS_TEAR_ON 0x35
3017 +#define DCS_MEM_ACC_CTRL 0x36
3018 +#define DCS_PIXEL_FORMAT 0x3a
3019 +#define DCS_BRIGHTNESS 0x51
3020 +#define DCS_CTRL_DISPLAY 0x53
3021 +#define DCS_WRITE_CABC 0x55
3022 +#define DCS_READ_CABC 0x56
3023 +#define DCS_GET_ID1 0xda
3024 +#define DCS_GET_ID2 0xdb
3025 +#define DCS_GET_ID3 0xdc
3026 +
3027 +struct taal_data {
3028 + struct backlight_device *bldev;
3029 +
3030 + unsigned long hw_guard_end; /* next value of jiffies when we can
3031 + * issue the next sleep in/out command
3032 + */
3033 + unsigned long hw_guard_wait; /* max guard time in jiffies */
3034 +
3035 + struct omap_dss_device *dssdev;
3036 +
3037 + bool enabled;
3038 + u8 rotate;
3039 + bool mirror;
3040 +
3041 + bool te_enabled;
3042 + bool use_ext_te;
3043 + struct completion te_completion;
3044 +
3045 + bool use_dsi_bl;
3046 +
3047 + bool cabc_broken;
3048 + unsigned cabc_mode;
3049 +
3050 + bool intro_printed;
3051 +};
3052 +
3053 +static void hw_guard_start(struct taal_data *td, int guard_msec)
3054 +{
3055 + td->hw_guard_wait = msecs_to_jiffies(guard_msec);
3056 + td->hw_guard_end = jiffies + td->hw_guard_wait;
3057 +}
3058 +
3059 +static void hw_guard_wait(struct taal_data *td)
3060 +{
3061 + unsigned long wait = td->hw_guard_end - jiffies;
3062 +
3063 + if ((long)wait > 0 && wait <= td->hw_guard_wait) {
3064 + set_current_state(TASK_UNINTERRUPTIBLE);
3065 + schedule_timeout(wait);
3066 + }
3067 +}
3068 +
3069 +static int taal_dcs_read_1(u8 dcs_cmd, u8 *data)
3070 +{
3071 + int r;
3072 + u8 buf[1];
3073 +
3074 + r = dsi_vc_dcs_read(TCH, dcs_cmd, buf, 1);
3075 +
3076 + if (r < 0)
3077 + return r;
3078 +
3079 + *data = buf[0];
3080 +
3081 + return 0;
3082 +}
3083 +
3084 +static int taal_dcs_write_0(u8 dcs_cmd)
3085 +{
3086 + return dsi_vc_dcs_write(TCH, &dcs_cmd, 1);
3087 +}
3088 +
3089 +static int taal_dcs_write_1(u8 dcs_cmd, u8 param)
3090 +{
3091 + u8 buf[2];
3092 + buf[0] = dcs_cmd;
3093 + buf[1] = param;
3094 + return dsi_vc_dcs_write(TCH, buf, 2);
3095 +}
3096 +
3097 +static int taal_sleep_in(struct taal_data *td)
3098 +
3099 +{
3100 + u8 cmd;
3101 + int r;
3102 +
3103 + hw_guard_wait(td);
3104 +
3105 + cmd = DCS_SLEEP_IN;
3106 + r = dsi_vc_dcs_write_nosync(TCH, &cmd, 1);
3107 + if (r)
3108 + return r;
3109 +
3110 + hw_guard_start(td, 120);
3111 +
3112 + msleep(5);
3113 +
3114 + return 0;
3115 +}
3116 +
3117 +static int taal_sleep_out(struct taal_data *td)
3118 +{
3119 + int r;
3120 +
3121 + hw_guard_wait(td);
3122 +
3123 + r = taal_dcs_write_0(DCS_SLEEP_OUT);
3124 + if (r)
3125 + return r;
3126 +
3127 + hw_guard_start(td, 120);
3128 +
3129 + msleep(5);
3130 +
3131 + return 0;
3132 +}
3133 +
3134 +static int taal_get_id(u8 *id1, u8 *id2, u8 *id3)
3135 +{
3136 + int r;
3137 +
3138 + r = taal_dcs_read_1(DCS_GET_ID1, id1);
3139 + if (r)
3140 + return r;
3141 + r = taal_dcs_read_1(DCS_GET_ID2, id2);
3142 + if (r)
3143 + return r;
3144 + r = taal_dcs_read_1(DCS_GET_ID3, id3);
3145 + if (r)
3146 + return r;
3147 +
3148 + return 0;
3149 +}
3150 +
3151 +static int taal_set_addr_mode(u8 rotate, bool mirror)
3152 +{
3153 + int r;
3154 + u8 mode;
3155 + int b5, b6, b7;
3156 +
3157 + r = taal_dcs_read_1(DCS_READ_MADCTL, &mode);
3158 + if (r)
3159 + return r;
3160 +
3161 + switch (rotate) {
3162 + default:
3163 + case 0:
3164 + b7 = 0;
3165 + b6 = 0;
3166 + b5 = 0;
3167 + break;
3168 + case 1:
3169 + b7 = 0;
3170 + b6 = 1;
3171 + b5 = 1;
3172 + break;
3173 + case 2:
3174 + b7 = 1;
3175 + b6 = 1;
3176 + b5 = 0;
3177 + break;
3178 + case 3:
3179 + b7 = 1;
3180 + b6 = 0;
3181 + b5 = 1;
3182 + break;
3183 + }
3184 +
3185 + if (mirror)
3186 + b6 = !b6;
3187 +
3188 + mode &= ~((1<<7) | (1<<6) | (1<<5));
3189 + mode |= (b7 << 7) | (b6 << 6) | (b5 << 5);
3190 +
3191 + return taal_dcs_write_1(DCS_MEM_ACC_CTRL, mode);
3192 +}
3193 +
3194 +static int taal_set_update_window(u16 x, u16 y, u16 w, u16 h)
3195 +{
3196 + int r;
3197 + u16 x1 = x;
3198 + u16 x2 = x + w - 1;
3199 + u16 y1 = y;
3200 + u16 y2 = y + h - 1;
3201 +
3202 + u8 buf[5];
3203 + buf[0] = DCS_COLUMN_ADDR;
3204 + buf[1] = (x1 >> 8) & 0xff;
3205 + buf[2] = (x1 >> 0) & 0xff;
3206 + buf[3] = (x2 >> 8) & 0xff;
3207 + buf[4] = (x2 >> 0) & 0xff;
3208 +
3209 + r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf));
3210 + if (r)
3211 + return r;
3212 +
3213 + buf[0] = DCS_PAGE_ADDR;
3214 + buf[1] = (y1 >> 8) & 0xff;
3215 + buf[2] = (y1 >> 0) & 0xff;
3216 + buf[3] = (y2 >> 8) & 0xff;
3217 + buf[4] = (y2 >> 0) & 0xff;
3218 +
3219 + r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf));
3220 + if (r)
3221 + return r;
3222 +
3223 + dsi_vc_send_bta_sync(TCH);
3224 +
3225 + return r;
3226 +}
3227 +
3228 +static int taal_bl_update_status(struct backlight_device *dev)
3229 +{
3230 + struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev);
3231 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3232 + int r;
3233 + int level;
3234 +
3235 + if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
3236 + dev->props.power == FB_BLANK_UNBLANK)
3237 + level = dev->props.brightness;
3238 + else
3239 + level = 0;
3240 +
3241 + dev_dbg(&dssdev->dev, "update brightness to %d\n", level);
3242 +
3243 + if (td->use_dsi_bl) {
3244 + if (td->enabled) {
3245 + dsi_bus_lock();
3246 + r = taal_dcs_write_1(DCS_BRIGHTNESS, level);
3247 + dsi_bus_unlock();
3248 + if (r)
3249 + return r;
3250 + }
3251 + } else {
3252 + if (!dssdev->set_backlight)
3253 + return -EINVAL;
3254 +
3255 + r = dssdev->set_backlight(dssdev, level);
3256 + if (r)
3257 + return r;
3258 + }
3259 +
3260 + return 0;
3261 +}
3262 +
3263 +static int taal_bl_get_intensity(struct backlight_device *dev)
3264 +{
3265 + if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
3266 + dev->props.power == FB_BLANK_UNBLANK)
3267 + return dev->props.brightness;
3268 +
3269 + return 0;
3270 +}
3271 +
3272 +static struct backlight_ops taal_bl_ops = {
3273 + .get_brightness = taal_bl_get_intensity,
3274 + .update_status = taal_bl_update_status,
3275 +};
3276 +
3277 +static void taal_get_timings(struct omap_dss_device *dssdev,
3278 + struct omap_video_timings *timings)
3279 +{
3280 + *timings = dssdev->panel.timings;
3281 +}
3282 +
3283 +static void taal_get_resolution(struct omap_dss_device *dssdev,
3284 + u16 *xres, u16 *yres)
3285 +{
3286 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3287 +
3288 + if (td->rotate == 0 || td->rotate == 2) {
3289 + *xres = dssdev->panel.timings.x_res;
3290 + *yres = dssdev->panel.timings.y_res;
3291 + } else {
3292 + *yres = dssdev->panel.timings.x_res;
3293 + *xres = dssdev->panel.timings.y_res;
3294 + }
3295 +}
3296 +
3297 +static irqreturn_t taal_te_isr(int irq, void *data)
3298 +{
3299 + struct omap_dss_device *dssdev = data;
3300 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3301 +
3302 + complete_all(&td->te_completion);
3303 +
3304 + return IRQ_HANDLED;
3305 +}
3306 +
3307 +static ssize_t taal_num_errors_show(struct device *dev,
3308 + struct device_attribute *attr, char *buf)
3309 +{
3310 + struct omap_dss_device *dssdev = to_dss_device(dev);
3311 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3312 + u8 errors;
3313 + int r;
3314 +
3315 + if (td->enabled) {
3316 + dsi_bus_lock();
3317 + r = taal_dcs_read_1(DCS_READ_NUM_ERRORS, &errors);
3318 + dsi_bus_unlock();
3319 + } else {
3320 + r = -ENODEV;
3321 + }
3322 +
3323 + if (r)
3324 + return r;
3325 +
3326 + return snprintf(buf, PAGE_SIZE, "%d\n", errors);
3327 +}
3328 +
3329 +static ssize_t taal_hw_revision_show(struct device *dev,
3330 + struct device_attribute *attr, char *buf)
3331 +{
3332 + struct omap_dss_device *dssdev = to_dss_device(dev);
3333 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3334 + u8 id1, id2, id3;
3335 + int r;
3336 +
3337 + if (td->enabled) {
3338 + dsi_bus_lock();
3339 + r = taal_get_id(&id1, &id2, &id3);
3340 + dsi_bus_unlock();
3341 + } else {
3342 + r = -ENODEV;
3343 + }
3344 +
3345 + if (r)
3346 + return r;
3347 +
3348 + return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3);
3349 +}
3350 +
3351 +static const char *cabc_modes[] = {
3352 + "off", /* used also always when CABC is not supported */
3353 + "ui",
3354 + "still-image",
3355 + "moving-image",
3356 +};
3357 +
3358 +static ssize_t show_cabc_mode(struct device *dev,
3359 + struct device_attribute *attr,
3360 + char *buf)
3361 +{
3362 + struct omap_dss_device *dssdev = to_dss_device(dev);
3363 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3364 + const char *mode_str;
3365 + int mode;
3366 + int len;
3367 +
3368 + mode = td->cabc_mode;
3369 +
3370 + mode_str = "unknown";
3371 + if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes))
3372 + mode_str = cabc_modes[mode];
3373 + len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str);
3374 +
3375 + return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1;
3376 +}
3377 +
3378 +static ssize_t store_cabc_mode(struct device *dev,
3379 + struct device_attribute *attr,
3380 + const char *buf, size_t count)
3381 +{
3382 + struct omap_dss_device *dssdev = to_dss_device(dev);
3383 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3384 + int i;
3385 +
3386 + for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) {
3387 + if (sysfs_streq(cabc_modes[i], buf))
3388 + break;
3389 + }
3390 +
3391 + if (i == ARRAY_SIZE(cabc_modes))
3392 + return -EINVAL;
3393 +
3394 + if (td->enabled) {
3395 + dsi_bus_lock();
3396 + if (!td->cabc_broken)
3397 + taal_dcs_write_1(DCS_WRITE_CABC, i);
3398 + dsi_bus_unlock();
3399 + }
3400 +
3401 + td->cabc_mode = i;
3402 +
3403 + return count;
3404 +}
3405 +
3406 +static ssize_t show_cabc_available_modes(struct device *dev,
3407 + struct device_attribute *attr,
3408 + char *buf)
3409 +{
3410 + int len;
3411 + int i;
3412 +
3413 + for (i = 0, len = 0;
3414 + len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++)
3415 + len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s",
3416 + i ? " " : "", cabc_modes[i],
3417 + i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : "");
3418 +
3419 + return len < PAGE_SIZE ? len : PAGE_SIZE - 1;
3420 +}
3421 +
3422 +static DEVICE_ATTR(num_dsi_errors, S_IRUGO, taal_num_errors_show, NULL);
3423 +static DEVICE_ATTR(hw_revision, S_IRUGO, taal_hw_revision_show, NULL);
3424 +static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR,
3425 + show_cabc_mode, store_cabc_mode);
3426 +static DEVICE_ATTR(cabc_available_modes, S_IRUGO,
3427 + show_cabc_available_modes, NULL);
3428 +
3429 +static struct attribute *taal_attrs[] = {
3430 + &dev_attr_num_dsi_errors.attr,
3431 + &dev_attr_hw_revision.attr,
3432 + &dev_attr_cabc_mode.attr,
3433 + &dev_attr_cabc_available_modes.attr,
3434 + NULL,
3435 +};
3436 +
3437 +static struct attribute_group taal_attr_group = {
3438 + .attrs = taal_attrs,
3439 +};
3440 +
3441 +static int taal_probe(struct omap_dss_device *dssdev)
3442 +{
3443 + struct taal_data *td;
3444 + struct backlight_device *bldev;
3445 + int r;
3446 +
3447 + const struct omap_video_timings taal_panel_timings = {
3448 + .x_res = 864,
3449 + .y_res = 480,
3450 + };
3451 +
3452 + dev_dbg(&dssdev->dev, "probe\n");
3453 +
3454 + dssdev->panel.config = OMAP_DSS_LCD_TFT;
3455 + dssdev->panel.timings = taal_panel_timings;
3456 + dssdev->ctrl.pixel_size = 24;
3457 +
3458 + td = kzalloc(sizeof(*td), GFP_KERNEL);
3459 + if (!td) {
3460 + r = -ENOMEM;
3461 + goto err0;
3462 + }
3463 +
3464 + dev_set_drvdata(&dssdev->dev, td);
3465 +
3466 + dssdev->get_timings = taal_get_timings;
3467 + dssdev->get_resolution = taal_get_resolution;
3468 +
3469 + /* if no platform set_backlight() defined, presume DSI backlight
3470 + * control */
3471 + if (!dssdev->set_backlight)
3472 + td->use_dsi_bl = true;
3473 +
3474 + bldev = backlight_device_register("taal", &dssdev->dev, dssdev,
3475 + &taal_bl_ops);
3476 + if (IS_ERR(bldev)) {
3477 + r = PTR_ERR(bldev);
3478 + goto err1;
3479 + }
3480 +
3481 + td->bldev = bldev;
3482 +
3483 + bldev->props.fb_blank = FB_BLANK_UNBLANK;
3484 + bldev->props.power = FB_BLANK_UNBLANK;
3485 + if (td->use_dsi_bl) {
3486 + bldev->props.max_brightness = 255;
3487 + bldev->props.brightness = 255;
3488 + } else {
3489 + bldev->props.max_brightness = 127;
3490 + bldev->props.brightness = 127;
3491 + }
3492 +
3493 + taal_bl_update_status(bldev);
3494 +
3495 + if (dssdev->phy.dsi.ext_te) {
3496 + int gpio = dssdev->phy.dsi.ext_te_gpio;
3497 +
3498 + r = gpio_request(gpio, "taal irq");
3499 + if (r) {
3500 + dev_err(&dssdev->dev, "GPIO request failed\n");
3501 + goto err2;
3502 + }
3503 +
3504 + gpio_direction_input(gpio);
3505 +
3506 + r = request_irq(gpio_to_irq(gpio), taal_te_isr,
3507 + IRQF_DISABLED | IRQF_TRIGGER_RISING,
3508 + "taal vsync", dssdev);
3509 +
3510 + if (r) {
3511 + dev_err(&dssdev->dev, "IRQ request failed\n");
3512 + gpio_free(gpio);
3513 + goto err2;
3514 + }
3515 +
3516 + init_completion(&td->te_completion);
3517 +
3518 + td->use_ext_te = true;
3519 + }
3520 +
3521 + r = sysfs_create_group(&dssdev->dev.kobj, &taal_attr_group);
3522 + if (r) {
3523 + dev_err(&dssdev->dev, "failed to create sysfs files\n");
3524 + goto err3;
3525 + }
3526 +
3527 + return 0;
3528 +err3:
3529 + if (td->use_ext_te) {
3530 + int gpio = dssdev->phy.dsi.ext_te_gpio;
3531 + free_irq(gpio_to_irq(gpio), dssdev);
3532 + gpio_free(gpio);
3533 + }
3534 +err2:
3535 + backlight_device_unregister(bldev);
3536 +err1:
3537 + kfree(td);
3538 +err0:
3539 + return r;
3540 +}
3541 +
3542 +static void taal_remove(struct omap_dss_device *dssdev)
3543 +{
3544 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3545 + struct backlight_device *bldev;
3546 +
3547 + dev_dbg(&dssdev->dev, "remove\n");
3548 +
3549 + sysfs_remove_group(&dssdev->dev.kobj, &taal_attr_group);
3550 +
3551 + if (td->use_ext_te) {
3552 + int gpio = dssdev->phy.dsi.ext_te_gpio;
3553 + free_irq(gpio_to_irq(gpio), dssdev);
3554 + gpio_free(gpio);
3555 + }
3556 +
3557 + bldev = td->bldev;
3558 + bldev->props.power = FB_BLANK_POWERDOWN;
3559 + taal_bl_update_status(bldev);
3560 + backlight_device_unregister(bldev);
3561 +
3562 + kfree(td);
3563 +}
3564 +
3565 +static int taal_enable(struct omap_dss_device *dssdev)
3566 +{
3567 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3568 + u8 id1, id2, id3;
3569 + int r;
3570 +
3571 + dev_dbg(&dssdev->dev, "enable\n");
3572 +
3573 + if (dssdev->platform_enable) {
3574 + r = dssdev->platform_enable(dssdev);
3575 + if (r)
3576 + return r;
3577 + }
3578 +
3579 + /* it seems we have to wait a bit until taal is ready */
3580 + msleep(5);
3581 +
3582 + r = taal_sleep_out(td);
3583 + if (r)
3584 + return r;
3585 +
3586 + r = taal_get_id(&id1, &id2, &id3);
3587 + if (r)
3588 + return r;
3589 +
3590 + /* on early revisions CABC is broken */
3591 + if (id2 == 0x00 || id2 == 0xff || id2 == 0x81)
3592 + td->cabc_broken = true;
3593 +
3594 + taal_dcs_write_1(DCS_BRIGHTNESS, 0xff);
3595 + taal_dcs_write_1(DCS_CTRL_DISPLAY, (1<<2) | (1<<5)); /* BL | BCTRL */
3596 +
3597 + taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */
3598 +
3599 + taal_set_addr_mode(td->rotate, td->mirror);
3600 + if (!td->cabc_broken)
3601 + taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode);
3602 +
3603 + taal_dcs_write_0(DCS_DISPLAY_ON);
3604 +
3605 + td->enabled = 1;
3606 +
3607 + if (!td->intro_printed) {
3608 + dev_info(&dssdev->dev, "revision %02x.%02x.%02x\n",
3609 + id1, id2, id3);
3610 + if (td->cabc_broken)
3611 + dev_info(&dssdev->dev,
3612 + "old Taal version, CABC disabled\n");
3613 + td->intro_printed = true;
3614 + }
3615 +
3616 + return 0;
3617 +}
3618 +
3619 +static void taal_disable(struct omap_dss_device *dssdev)
3620 +{
3621 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3622 +
3623 + dev_dbg(&dssdev->dev, "disable\n");
3624 +
3625 + taal_dcs_write_0(DCS_DISPLAY_OFF);
3626 + taal_sleep_in(td);
3627 +
3628 + /* wait a bit so that the message goes through */
3629 + msleep(10);
3630 +
3631 + if (dssdev->platform_disable)
3632 + dssdev->platform_disable(dssdev);
3633 +
3634 + td->enabled = 0;
3635 +}
3636 +
3637 +static int taal_suspend(struct omap_dss_device *dssdev)
3638 +{
3639 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3640 + struct backlight_device *bldev = td->bldev;
3641 +
3642 + bldev->props.power = FB_BLANK_POWERDOWN;
3643 + taal_bl_update_status(bldev);
3644 +
3645 + return 0;
3646 +}
3647 +
3648 +static int taal_resume(struct omap_dss_device *dssdev)
3649 +{
3650 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3651 + struct backlight_device *bldev = td->bldev;
3652 +
3653 + bldev->props.power = FB_BLANK_UNBLANK;
3654 + taal_bl_update_status(bldev);
3655 +
3656 + return 0;
3657 +}
3658 +
3659 +static void taal_setup_update(struct omap_dss_device *dssdev,
3660 + u16 x, u16 y, u16 w, u16 h)
3661 +{
3662 + taal_set_update_window(x, y, w, h);
3663 +}
3664 +
3665 +static int taal_enable_te(struct omap_dss_device *dssdev, bool enable)
3666 +{
3667 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3668 + int r;
3669 +
3670 + td->te_enabled = enable;
3671 +
3672 + if (enable)
3673 + r = taal_dcs_write_1(DCS_TEAR_ON, 0);
3674 + else
3675 + r = taal_dcs_write_0(DCS_TEAR_OFF);
3676 +
3677 + return r;
3678 +}
3679 +
3680 +static int taal_wait_te(struct omap_dss_device *dssdev)
3681 +{
3682 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3683 + long wait = msecs_to_jiffies(500);
3684 +
3685 + if (!td->use_ext_te || !td->te_enabled)
3686 + return 0;
3687 +
3688 + INIT_COMPLETION(td->te_completion);
3689 + wait = wait_for_completion_timeout(&td->te_completion, wait);
3690 + if (wait == 0) {
3691 + dev_err(&dssdev->dev, "timeout waiting TE\n");
3692 + return -ETIME;
3693 + }
3694 +
3695 + return 0;
3696 +}
3697 +
3698 +static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate)
3699 +{
3700 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3701 + int r;
3702 +
3703 + dev_dbg(&dssdev->dev, "rotate %d\n", rotate);
3704 +
3705 + if (td->enabled) {
3706 + r = taal_set_addr_mode(rotate, td->mirror);
3707 +
3708 + if (r)
3709 + return r;
3710 + }
3711 +
3712 + td->rotate = rotate;
3713 +
3714 + return 0;
3715 +}
3716 +
3717 +static u8 taal_get_rotate(struct omap_dss_device *dssdev)
3718 +{
3719 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3720 + return td->rotate;
3721 +}
3722 +
3723 +static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
3724 +{
3725 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3726 + int r;
3727 +
3728 + dev_dbg(&dssdev->dev, "mirror %d\n", enable);
3729 +
3730 + if (td->enabled) {
3731 + r = taal_set_addr_mode(td->rotate, enable);
3732 +
3733 + if (r)
3734 + return r;
3735 + }
3736 +
3737 + td->mirror = enable;
3738 +
3739 + return 0;
3740 +}
3741 +
3742 +static bool taal_get_mirror(struct omap_dss_device *dssdev)
3743 +{
3744 + struct taal_data *td = dev_get_drvdata(&dssdev->dev);
3745 + return td->mirror;
3746 +}
3747 +
3748 +static int taal_run_test(struct omap_dss_device *dssdev, int test_num)
3749 +{
3750 + u8 id1, id2, id3;
3751 + int r;
3752 +
3753 + r = taal_dcs_read_1(DCS_GET_ID1, &id1);
3754 + if (r)
3755 + return r;
3756 + r = taal_dcs_read_1(DCS_GET_ID2, &id2);
3757 + if (r)
3758 + return r;
3759 + r = taal_dcs_read_1(DCS_GET_ID3, &id3);
3760 + if (r)
3761 + return r;
3762 +
3763 + return 0;
3764 +}
3765 +
3766 +static int taal_memory_read(struct omap_dss_device *dssdev,
3767 + void *buf, size_t size,
3768 + u16 x, u16 y, u16 w, u16 h)
3769 +{
3770 + int r;
3771 + int first = 1;
3772 + int plen;
3773 + unsigned buf_used = 0;
3774 +
3775 + if (size < w * h * 3)
3776 + return -ENOMEM;
3777 +
3778 + size = min(w * h * 3,
3779 + dssdev->panel.timings.x_res *
3780 + dssdev->panel.timings.y_res * 3);
3781 +
3782 + /* plen 1 or 2 goes into short packet. until checksum error is fixed,
3783 + * use short packets. plen 32 works, but bigger packets seem to cause
3784 + * an error. */
3785 + if (size % 2)
3786 + plen = 1;
3787 + else
3788 + plen = 2;
3789 +
3790 + taal_setup_update(dssdev, x, y, w, h);
3791 +
3792 + r = dsi_vc_set_max_rx_packet_size(TCH, plen);
3793 + if (r)
3794 + return r;
3795 +
3796 + while (buf_used < size) {
3797 + u8 dcs_cmd = first ? 0x2e : 0x3e;
3798 + first = 0;
3799 +
3800 + r = dsi_vc_dcs_read(TCH, dcs_cmd,
3801 + buf + buf_used, size - buf_used);
3802 +
3803 + if (r < 0) {
3804 + dev_err(&dssdev->dev, "read error\n");
3805 + goto err;
3806 + }
3807 +
3808 + buf_used += r;
3809 +
3810 + if (r < plen) {
3811 + dev_err(&dssdev->dev, "short read\n");
3812 + break;
3813 + }
3814 + }
3815 +
3816 + r = buf_used;
3817 +
3818 +err:
3819 + dsi_vc_set_max_rx_packet_size(TCH, 1);
3820 +
3821 + return r;
3822 +}
3823 +
3824 +static struct omap_dss_driver taal_driver = {
3825 + .probe = taal_probe,
3826 + .remove = taal_remove,
3827 +
3828 + .enable = taal_enable,
3829 + .disable = taal_disable,
3830 + .suspend = taal_suspend,
3831 + .resume = taal_resume,
3832 +
3833 + .setup_update = taal_setup_update,
3834 + .enable_te = taal_enable_te,
3835 + .wait_for_te = taal_wait_te,
3836 + .set_rotate = taal_rotate,
3837 + .get_rotate = taal_get_rotate,
3838 + .set_mirror = taal_mirror,
3839 + .get_mirror = taal_get_mirror,
3840 + .run_test = taal_run_test,
3841 + .memory_read = taal_memory_read,
3842 +
3843 + .driver = {
3844 + .name = "taal",
3845 + .owner = THIS_MODULE,
3846 + },
3847 +};
3848 +
3849 +static int __init taal_init(void)
3850 +{
3851 + omap_dss_register_driver(&taal_driver);
3852 +
3853 + return 0;
3854 +}
3855 +
3856 +static void __exit taal_exit(void)
3857 +{
3858 + omap_dss_unregister_driver(&taal_driver);
3859 +}
3860 +
3861 +module_init(taal_init);
3862 +module_exit(taal_exit);
3863 +
3864 +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
3865 +MODULE_DESCRIPTION("Taal Driver");
3866 +MODULE_LICENSE("GPL");
3867 --- /dev/null
3868 +++ b/drivers/video/omap2/dss/Kconfig
3869 @@ -0,0 +1,89 @@
3870 +menuconfig OMAP2_DSS
3871 + tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)"
3872 + depends on ARCH_OMAP2 || ARCH_OMAP3
3873 + help
3874 + OMAP2/3 Display Subsystem support.
3875 +
3876 +if OMAP2_DSS
3877 +
3878 +config OMAP2_VRAM_SIZE
3879 + int "VRAM size (MB)"
3880 + range 0 32
3881 + default 0
3882 + help
3883 + The amount of SDRAM to reserve at boot time for video RAM use.
3884 + This VRAM will be used by omapfb and other drivers that need
3885 + large continuous RAM area for video use.
3886 +
3887 + You can also set this with "vram=<bytes>" kernel argument, or
3888 + in the board file.
3889 +
3890 +config OMAP2_DSS_DEBUG_SUPPORT
3891 + bool "Debug support"
3892 + default y
3893 + help
3894 + This enables debug messages. You need to enable printing
3895 + with 'debug' module parameter.
3896 +
3897 +config OMAP2_DSS_RFBI
3898 + bool "RFBI support"
3899 + default n
3900 + help
3901 + MIPI DBI, or RFBI (Remote Framebuffer Interface), support.
3902 +
3903 +config OMAP2_DSS_VENC
3904 + bool "VENC support"
3905 + default y
3906 + help
3907 + OMAP Video Encoder support.
3908 +
3909 +config OMAP2_DSS_SDI
3910 + bool "SDI support"
3911 + depends on ARCH_OMAP3
3912 + default n
3913 + help
3914 + SDI (Serial Display Interface) support.
3915 +
3916 +config OMAP2_DSS_DSI
3917 + bool "DSI support"
3918 + depends on ARCH_OMAP3
3919 + default n
3920 + help
3921 + MIPI DSI support.
3922 +
3923 +config OMAP2_DSS_USE_DSI_PLL
3924 + bool "Use DSI PLL for PCLK (EXPERIMENTAL)"
3925 + default n
3926 + depends on OMAP2_DSS_DSI
3927 + help
3928 + Use DSI PLL to generate pixel clock. Currently only for DPI output.
3929 + DSI PLL can be used to generate higher and more precise pixel clocks.
3930 +
3931 +config OMAP2_DSS_FAKE_VSYNC
3932 + bool "Fake VSYNC irq from manual update displays"
3933 + default n
3934 + help
3935 + If this is selected, DSI will generate a fake DISPC VSYNC interrupt
3936 + when DSI has sent a frame. This is only needed with DSI or RFBI
3937 + displays using manual mode, and you want VSYNC to, for example,
3938 + time animation.
3939 +
3940 +config OMAP2_DSS_MIN_FCK_PER_PCK
3941 + int "Minimum FCK/PCK ratio (for scaling)"
3942 + range 0 32
3943 + default 0
3944 + help
3945 + This can be used to adjust the minimum FCK/PCK ratio.
3946 +
3947 + With this you can make sure that DISPC FCK is at least
3948 + n x PCK. Video plane scaling requires higher FCK than
3949 + normally.
3950 +
3951 + If this is set to 0, there's no extra constraint on the
3952 + DISPC FCK. However, the FCK will at minimum be
3953 + 2xPCK (if active matrix) or 3xPCK (if passive matrix).
3954 +
3955 + Max FCK is 173MHz, so this doesn't work if your PCK
3956 + is very high.
3957 +
3958 +endif
3959 --- /dev/null
3960 +++ b/drivers/video/omap2/dss/Makefile
3961 @@ -0,0 +1,6 @@
3962 +obj-$(CONFIG_OMAP2_DSS) += omapdss.o
3963 +omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o
3964 +omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
3965 +omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
3966 +omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
3967 +omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
3968 --- /dev/null
3969 +++ b/drivers/video/omap2/dss/core.c
3970 @@ -0,0 +1,917 @@
3971 +/*
3972 + * linux/drivers/video/omap2/dss/core.c
3973 + *
3974 + * Copyright (C) 2009 Nokia Corporation
3975 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
3976 + *
3977 + * Some code and ideas taken from drivers/video/omap/ driver
3978 + * by Imre Deak.
3979 + *
3980 + * This program is free software; you can redistribute it and/or modify it
3981 + * under the terms of the GNU General Public License version 2 as published by
3982 + * the Free Software Foundation.
3983 + *
3984 + * This program is distributed in the hope that it will be useful, but WITHOUT
3985 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
3986 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
3987 + * more details.
3988 + *
3989 + * You should have received a copy of the GNU General Public License along with
3990 + * this program. If not, see <http://www.gnu.org/licenses/>.
3991 + */
3992 +
3993 +#define DSS_SUBSYS_NAME "CORE"
3994 +
3995 +#include <linux/kernel.h>
3996 +#include <linux/module.h>
3997 +#include <linux/clk.h>
3998 +#include <linux/err.h>
3999 +#include <linux/platform_device.h>
4000 +#include <linux/seq_file.h>
4001 +#include <linux/debugfs.h>
4002 +#include <linux/io.h>
4003 +#include <linux/device.h>
4004 +
4005 +#include <mach/display.h>
4006 +#include <mach/clock.h>
4007 +
4008 +#include "dss.h"
4009 +
4010 +static struct {
4011 + struct platform_device *pdev;
4012 + int ctx_id;
4013 +
4014 + struct clk *dss_ick;
4015 + struct clk *dss1_fck;
4016 + struct clk *dss2_fck;
4017 + struct clk *dss_54m_fck;
4018 + struct clk *dss_96m_fck;
4019 + unsigned num_clks_enabled;
4020 +} core;
4021 +
4022 +static void dss_clk_enable_all_no_ctx(void);
4023 +static void dss_clk_disable_all_no_ctx(void);
4024 +static void dss_clk_enable_no_ctx(enum dss_clock clks);
4025 +static void dss_clk_disable_no_ctx(enum dss_clock clks);
4026 +
4027 +static char *def_disp_name;
4028 +module_param_named(def_disp, def_disp_name, charp, 0);
4029 +MODULE_PARM_DESC(def_disp_name, "default display name");
4030 +
4031 +#ifdef DEBUG
4032 +unsigned int dss_debug;
4033 +module_param_named(debug, dss_debug, bool, 0644);
4034 +#endif
4035 +
4036 +/* CONTEXT */
4037 +static int dss_get_ctx_id(void)
4038 +{
4039 + struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
4040 + int r;
4041 +
4042 + if (!pdata->get_last_off_on_transaction_id)
4043 + return 0;
4044 + r = pdata->get_last_off_on_transaction_id(&core.pdev->dev);
4045 + if (r < 0) {
4046 + dev_err(&core.pdev->dev, "getting transaction ID failed, "
4047 + "will force context restore\n");
4048 + r = -1;
4049 + }
4050 + return r;
4051 +}
4052 +
4053 +int dss_need_ctx_restore(void)
4054 +{
4055 + int id = dss_get_ctx_id();
4056 +
4057 + if (id < 0 || id != core.ctx_id) {
4058 + DSSDBG("ctx id %d -> id %d\n",
4059 + core.ctx_id, id);
4060 + core.ctx_id = id;
4061 + return 1;
4062 + } else {
4063 + return 0;
4064 + }
4065 +}
4066 +
4067 +static void save_all_ctx(void)
4068 +{
4069 + DSSDBG("save context\n");
4070 +
4071 + dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
4072 +
4073 + dss_save_context();
4074 + dispc_save_context();
4075 +#ifdef CONFIG_OMAP2_DSS_DSI
4076 + dsi_save_context();
4077 +#endif
4078 +
4079 + dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
4080 +}
4081 +
4082 +static void restore_all_ctx(void)
4083 +{
4084 + DSSDBG("restore context\n");
4085 +
4086 + dss_clk_enable_all_no_ctx();
4087 +
4088 + dss_restore_context();
4089 + dispc_restore_context();
4090 +#ifdef CONFIG_OMAP2_DSS_DSI
4091 + dsi_restore_context();
4092 +#endif
4093 +
4094 + dss_clk_disable_all_no_ctx();
4095 +}
4096 +
4097 +/* CLOCKS */
4098 +void dss_dump_clocks(struct seq_file *s)
4099 +{
4100 + int i;
4101 + struct clk *clocks[5] = {
4102 + core.dss_ick,
4103 + core.dss1_fck,
4104 + core.dss2_fck,
4105 + core.dss_54m_fck,
4106 + core.dss_96m_fck
4107 + };
4108 +
4109 + seq_printf(s, "- dss -\n");
4110 +
4111 + seq_printf(s, "internal clk count\t%u\n", core.num_clks_enabled);
4112 +
4113 + for (i = 0; i < 5; i++) {
4114 + if (!clocks[i])
4115 + continue;
4116 + seq_printf(s, "%-15s\t%lu\t%d\n",
4117 + clocks[i]->name,
4118 + clk_get_rate(clocks[i]),
4119 + clocks[i]->usecount);
4120 + }
4121 +}
4122 +
4123 +static int dss_get_clock(struct clk **clock, const char *clk_name)
4124 +{
4125 + struct clk *clk;
4126 +
4127 + clk = clk_get(&core.pdev->dev, clk_name);
4128 +
4129 + if (IS_ERR(clk)) {
4130 + DSSERR("can't get clock %s", clk_name);
4131 + return PTR_ERR(clk);
4132 + }
4133 +
4134 + *clock = clk;
4135 +
4136 + DSSDBG("clk %s, rate %ld\n", clk_name, clk_get_rate(clk));
4137 +
4138 + return 0;
4139 +}
4140 +
4141 +static int dss_get_clocks(void)
4142 +{
4143 + int r;
4144 +
4145 + core.dss_ick = NULL;
4146 + core.dss1_fck = NULL;
4147 + core.dss2_fck = NULL;
4148 + core.dss_54m_fck = NULL;
4149 + core.dss_96m_fck = NULL;
4150 +
4151 + r = dss_get_clock(&core.dss_ick, "ick");
4152 + if (r)
4153 + goto err;
4154 +
4155 + r = dss_get_clock(&core.dss1_fck, "dss1_fck");
4156 + if (r)
4157 + goto err;
4158 +
4159 + r = dss_get_clock(&core.dss2_fck, "dss2_fck");
4160 + if (r)
4161 + goto err;
4162 +
4163 + r = dss_get_clock(&core.dss_54m_fck, "tv_fck");
4164 + if (r)
4165 + goto err;
4166 +
4167 + r = dss_get_clock(&core.dss_96m_fck, "video_fck");
4168 + if (r)
4169 + goto err;
4170 +
4171 + return 0;
4172 +
4173 +err:
4174 + if (core.dss_ick)
4175 + clk_put(core.dss_ick);
4176 + if (core.dss1_fck)
4177 + clk_put(core.dss1_fck);
4178 + if (core.dss2_fck)
4179 + clk_put(core.dss2_fck);
4180 + if (core.dss_54m_fck)
4181 + clk_put(core.dss_54m_fck);
4182 + if (core.dss_96m_fck)
4183 + clk_put(core.dss_96m_fck);
4184 +
4185 + return r;
4186 +}
4187 +
4188 +static void dss_put_clocks(void)
4189 +{
4190 + if (core.dss_96m_fck)
4191 + clk_put(core.dss_96m_fck);
4192 + clk_put(core.dss_54m_fck);
4193 + clk_put(core.dss1_fck);
4194 + clk_put(core.dss2_fck);
4195 + clk_put(core.dss_ick);
4196 +}
4197 +
4198 +unsigned long dss_clk_get_rate(enum dss_clock clk)
4199 +{
4200 + switch (clk) {
4201 + case DSS_CLK_ICK:
4202 + return clk_get_rate(core.dss_ick);
4203 + case DSS_CLK_FCK1:
4204 + return clk_get_rate(core.dss1_fck);
4205 + case DSS_CLK_FCK2:
4206 + return clk_get_rate(core.dss2_fck);
4207 + case DSS_CLK_54M:
4208 + return clk_get_rate(core.dss_54m_fck);
4209 + case DSS_CLK_96M:
4210 + return clk_get_rate(core.dss_96m_fck);
4211 + }
4212 +
4213 + BUG();
4214 + return 0;
4215 +}
4216 +
4217 +static unsigned count_clk_bits(enum dss_clock clks)
4218 +{
4219 + unsigned num_clks = 0;
4220 +
4221 + if (clks & DSS_CLK_ICK)
4222 + ++num_clks;
4223 + if (clks & DSS_CLK_FCK1)
4224 + ++num_clks;
4225 + if (clks & DSS_CLK_FCK2)
4226 + ++num_clks;
4227 + if (clks & DSS_CLK_54M)
4228 + ++num_clks;
4229 + if (clks & DSS_CLK_96M)
4230 + ++num_clks;
4231 +
4232 + return num_clks;
4233 +}
4234 +
4235 +static void dss_clk_enable_no_ctx(enum dss_clock clks)
4236 +{
4237 + unsigned num_clks = count_clk_bits(clks);
4238 +
4239 + if (clks & DSS_CLK_ICK)
4240 + clk_enable(core.dss_ick);
4241 + if (clks & DSS_CLK_FCK1)
4242 + clk_enable(core.dss1_fck);
4243 + if (clks & DSS_CLK_FCK2)
4244 + clk_enable(core.dss2_fck);
4245 + if (clks & DSS_CLK_54M)
4246 + clk_enable(core.dss_54m_fck);
4247 + if (clks & DSS_CLK_96M)
4248 + clk_enable(core.dss_96m_fck);
4249 +
4250 + core.num_clks_enabled += num_clks;
4251 +}
4252 +
4253 +void dss_clk_enable(enum dss_clock clks)
4254 +{
4255 + dss_clk_enable_no_ctx(clks);
4256 +
4257 + if (cpu_is_omap34xx() && dss_need_ctx_restore())
4258 + restore_all_ctx();
4259 +}
4260 +
4261 +static void dss_clk_disable_no_ctx(enum dss_clock clks)
4262 +{
4263 + unsigned num_clks = count_clk_bits(clks);
4264 +
4265 + if (clks & DSS_CLK_ICK)
4266 + clk_disable(core.dss_ick);
4267 + if (clks & DSS_CLK_FCK1)
4268 + clk_disable(core.dss1_fck);
4269 + if (clks & DSS_CLK_FCK2)
4270 + clk_disable(core.dss2_fck);
4271 + if (clks & DSS_CLK_54M)
4272 + clk_disable(core.dss_54m_fck);
4273 + if (clks & DSS_CLK_96M)
4274 + clk_disable(core.dss_96m_fck);
4275 +
4276 + core.num_clks_enabled -= num_clks;
4277 +}
4278 +
4279 +void dss_clk_disable(enum dss_clock clks)
4280 +{
4281 + if (cpu_is_omap34xx()) {
4282 + unsigned num_clks = count_clk_bits(clks);
4283 +
4284 + BUG_ON(core.num_clks_enabled < num_clks);
4285 +
4286 + if (core.num_clks_enabled == num_clks)
4287 + save_all_ctx();
4288 + }
4289 +
4290 + dss_clk_disable_no_ctx(clks);
4291 +}
4292 +
4293 +static void dss_clk_enable_all_no_ctx(void)
4294 +{
4295 + enum dss_clock clks;
4296 +
4297 + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
4298 + if (cpu_is_omap34xx())
4299 + clks |= DSS_CLK_96M;
4300 + dss_clk_enable_no_ctx(clks);
4301 +}
4302 +
4303 +static void dss_clk_disable_all_no_ctx(void)
4304 +{
4305 + enum dss_clock clks;
4306 +
4307 + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
4308 + if (cpu_is_omap34xx())
4309 + clks |= DSS_CLK_96M;
4310 + dss_clk_disable_no_ctx(clks);
4311 +}
4312 +
4313 +static void dss_clk_disable_all(void)
4314 +{
4315 + enum dss_clock clks;
4316 +
4317 + clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
4318 + if (cpu_is_omap34xx())
4319 + clks |= DSS_CLK_96M;
4320 + dss_clk_disable(clks);
4321 +}
4322 +
4323 +/* DEBUGFS */
4324 +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
4325 +static void dss_debug_dump_clocks(struct seq_file *s)
4326 +{
4327 + dss_dump_clocks(s);
4328 + dispc_dump_clocks(s);
4329 +#ifdef CONFIG_OMAP2_DSS_DSI
4330 + dsi_dump_clocks(s);
4331 +#endif
4332 +}
4333 +
4334 +static int dss_debug_show(struct seq_file *s, void *unused)
4335 +{
4336 + void (*func)(struct seq_file *) = s->private;
4337 + func(s);
4338 + return 0;
4339 +}
4340 +
4341 +static int dss_debug_open(struct inode *inode, struct file *file)
4342 +{
4343 + return single_open(file, dss_debug_show, inode->i_private);
4344 +}
4345 +
4346 +static const struct file_operations dss_debug_fops = {
4347 + .open = dss_debug_open,
4348 + .read = seq_read,
4349 + .llseek = seq_lseek,
4350 + .release = single_release,
4351 +};
4352 +
4353 +static struct dentry *dss_debugfs_dir;
4354 +
4355 +static int dss_initialize_debugfs(void)
4356 +{
4357 + dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
4358 + if (IS_ERR(dss_debugfs_dir)) {
4359 + int err = PTR_ERR(dss_debugfs_dir);
4360 + dss_debugfs_dir = NULL;
4361 + return err;
4362 + }
4363 +
4364 + debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
4365 + &dss_debug_dump_clocks, &dss_debug_fops);
4366 +
4367 + debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir,
4368 + &dss_dump_regs, &dss_debug_fops);
4369 + debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir,
4370 + &dispc_dump_regs, &dss_debug_fops);
4371 +#ifdef CONFIG_OMAP2_DSS_RFBI
4372 + debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir,
4373 + &rfbi_dump_regs, &dss_debug_fops);
4374 +#endif
4375 +#ifdef CONFIG_OMAP2_DSS_DSI
4376 + debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir,
4377 + &dsi_dump_regs, &dss_debug_fops);
4378 +#endif
4379 +#ifdef CONFIG_OMAP2_DSS_VENC
4380 + debugfs_create_file("venc", S_IRUGO, dss_debugfs_dir,
4381 + &venc_dump_regs, &dss_debug_fops);
4382 +#endif
4383 + return 0;
4384 +}
4385 +
4386 +static void dss_uninitialize_debugfs(void)
4387 +{
4388 + if (dss_debugfs_dir)
4389 + debugfs_remove_recursive(dss_debugfs_dir);
4390 +}
4391 +#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
4392 +
4393 +/* PLATFORM DEVICE */
4394 +static int omap_dss_probe(struct platform_device *pdev)
4395 +{
4396 + struct omap_dss_board_info *pdata = pdev->dev.platform_data;
4397 + int skip_init = 0;
4398 + int r;
4399 + int i;
4400 +
4401 + core.pdev = pdev;
4402 +
4403 + dss_init_overlay_managers(pdev);
4404 + dss_init_overlays(pdev);
4405 +
4406 + r = dss_get_clocks();
4407 + if (r)
4408 + goto fail0;
4409 +
4410 + dss_clk_enable_all_no_ctx();
4411 +
4412 + core.ctx_id = dss_get_ctx_id();
4413 + DSSDBG("initial ctx id %u\n", core.ctx_id);
4414 +
4415 +#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
4416 + /* DISPC_CONTROL */
4417 + if (omap_readl(0x48050440) & 1) /* LCD enabled? */
4418 + skip_init = 1;
4419 +#endif
4420 +
4421 + r = dss_init(skip_init);
4422 + if (r) {
4423 + DSSERR("Failed to initialize DSS\n");
4424 + goto fail0;
4425 + }
4426 +
4427 +#ifdef CONFIG_OMAP2_DSS_RFBI
4428 + r = rfbi_init();
4429 + if (r) {
4430 + DSSERR("Failed to initialize rfbi\n");
4431 + goto fail0;
4432 + }
4433 +#endif
4434 +
4435 + r = dpi_init();
4436 + if (r) {
4437 + DSSERR("Failed to initialize dpi\n");
4438 + goto fail0;
4439 + }
4440 +
4441 + r = dispc_init();
4442 + if (r) {
4443 + DSSERR("Failed to initialize dispc\n");
4444 + goto fail0;
4445 + }
4446 +#ifdef CONFIG_OMAP2_DSS_VENC
4447 + r = venc_init(pdev);
4448 + if (r) {
4449 + DSSERR("Failed to initialize venc\n");
4450 + goto fail0;
4451 + }
4452 +#endif
4453 + if (cpu_is_omap34xx()) {
4454 +#ifdef CONFIG_OMAP2_DSS_SDI
4455 + r = sdi_init(skip_init);
4456 + if (r) {
4457 + DSSERR("Failed to initialize SDI\n");
4458 + goto fail0;
4459 + }
4460 +#endif
4461 +#ifdef CONFIG_OMAP2_DSS_DSI
4462 + r = dsi_init(pdev);
4463 + if (r) {
4464 + DSSERR("Failed to initialize DSI\n");
4465 + goto fail0;
4466 + }
4467 +#endif
4468 + }
4469 +
4470 +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
4471 + r = dss_initialize_debugfs();
4472 + if (r)
4473 + goto fail0;
4474 +#endif
4475 +
4476 + for (i = 0; i < pdata->num_devices; ++i) {
4477 + struct omap_dss_device *dssdev = pdata->devices[i];
4478 +
4479 + r = omap_dss_register_device(dssdev);
4480 + if (r)
4481 + DSSERR("device reg failed %d\n", i);
4482 +
4483 + if (def_disp_name && strcmp(def_disp_name, dssdev->name) == 0)
4484 + pdata->default_device = dssdev;
4485 + }
4486 +
4487 + dss_clk_disable_all();
4488 +
4489 + return 0;
4490 +
4491 + /* XXX fail correctly */
4492 +fail0:
4493 + return r;
4494 +}
4495 +
4496 +static int omap_dss_remove(struct platform_device *pdev)
4497 +{
4498 + struct omap_dss_board_info *pdata = pdev->dev.platform_data;
4499 + int i;
4500 + int c;
4501 +
4502 +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
4503 + dss_uninitialize_debugfs();
4504 +#endif
4505 +
4506 +#ifdef CONFIG_OMAP2_DSS_VENC
4507 + venc_exit();
4508 +#endif
4509 + dispc_exit();
4510 + dpi_exit();
4511 +#ifdef CONFIG_OMAP2_DSS_RFBI
4512 + rfbi_exit();
4513 +#endif
4514 + if (cpu_is_omap34xx()) {
4515 +#ifdef CONFIG_OMAP2_DSS_DSI
4516 + dsi_exit();
4517 +#endif
4518 +#ifdef CONFIG_OMAP2_DSS_SDI
4519 + sdi_exit();
4520 +#endif
4521 + }
4522 +
4523 + dss_exit();
4524 +
4525 + /* these should be removed at some point */
4526 + c = core.dss_ick->usecount;
4527 + if (c > 0) {
4528 + DSSERR("warning: dss_ick usecount %d, disabling\n", c);
4529 + while (c-- > 0)
4530 + clk_disable(core.dss_ick);
4531 + }
4532 +
4533 + c = core.dss1_fck->usecount;
4534 + if (c > 0) {
4535 + DSSERR("warning: dss1_fck usecount %d, disabling\n", c);
4536 + while (c-- > 0)
4537 + clk_disable(core.dss1_fck);
4538 + }
4539 +
4540 + c = core.dss2_fck->usecount;
4541 + if (c > 0) {
4542 + DSSERR("warning: dss2_fck usecount %d, disabling\n", c);
4543 + while (c-- > 0)
4544 + clk_disable(core.dss2_fck);
4545 + }
4546 +
4547 + c = core.dss_54m_fck->usecount;
4548 + if (c > 0) {
4549 + DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c);
4550 + while (c-- > 0)
4551 + clk_disable(core.dss_54m_fck);
4552 + }
4553 +
4554 + if (core.dss_96m_fck) {
4555 + c = core.dss_96m_fck->usecount;
4556 + if (c > 0) {
4557 + DSSERR("warning: dss_96m_fck usecount %d, disabling\n",
4558 + c);
4559 + while (c-- > 0)
4560 + clk_disable(core.dss_96m_fck);
4561 + }
4562 + }
4563 +
4564 + dss_put_clocks();
4565 +
4566 + dss_uninit_overlays(pdev);
4567 + dss_uninit_overlay_managers(pdev);
4568 +
4569 + for (i = 0; i < pdata->num_devices; ++i)
4570 + omap_dss_unregister_device(pdata->devices[i]);
4571 +
4572 + return 0;
4573 +}
4574 +
4575 +static void omap_dss_shutdown(struct platform_device *pdev)
4576 +{
4577 + DSSDBG("shutdown\n");
4578 +}
4579 +
4580 +static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state)
4581 +{
4582 + DSSDBG("suspend %d\n", state.event);
4583 +
4584 + return dss_suspend_all_devices();
4585 +}
4586 +
4587 +static int omap_dss_resume(struct platform_device *pdev)
4588 +{
4589 + DSSDBG("resume\n");
4590 +
4591 + return dss_resume_all_devices();
4592 +}
4593 +
4594 +static struct platform_driver omap_dss_driver = {
4595 + .probe = omap_dss_probe,
4596 + .remove = omap_dss_remove,
4597 + .shutdown = omap_dss_shutdown,
4598 + .suspend = omap_dss_suspend,
4599 + .resume = omap_dss_resume,
4600 + .driver = {
4601 + .name = "omapdss",
4602 + .owner = THIS_MODULE,
4603 + },
4604 +};
4605 +
4606 +/* BUS */
4607 +static int dss_bus_match(struct device *dev, struct device_driver *driver)
4608 +{
4609 + struct omap_dss_device *dssdev = to_dss_device(dev);
4610 +
4611 + DSSDBG("bus_match. dev %s/%s, drv %s\n",
4612 + dev_name(dev), dssdev->driver_name, driver->name);
4613 +
4614 + return strcmp(dssdev->driver_name, driver->name) == 0;
4615 +}
4616 +
4617 +static ssize_t device_name_show(struct device *dev,
4618 + struct device_attribute *attr, char *buf)
4619 +{
4620 + struct omap_dss_device *dssdev = to_dss_device(dev);
4621 + return snprintf(buf, PAGE_SIZE, "%s\n",
4622 + dssdev->name ?
4623 + dssdev->name : "");
4624 +}
4625 +
4626 +static struct device_attribute default_dev_attrs[] = {
4627 + __ATTR(name, S_IRUGO, device_name_show, NULL),
4628 + __ATTR_NULL,
4629 +};
4630 +
4631 +static ssize_t driver_name_show(struct device_driver *drv, char *buf)
4632 +{
4633 + struct omap_dss_driver *dssdrv = to_dss_driver(drv);
4634 + return snprintf(buf, PAGE_SIZE, "%s\n",
4635 + dssdrv->driver.name ?
4636 + dssdrv->driver.name : "");
4637 +}
4638 +static struct driver_attribute default_drv_attrs[] = {
4639 + __ATTR(name, S_IRUGO, driver_name_show, NULL),
4640 + __ATTR_NULL,
4641 +};
4642 +
4643 +static struct bus_type dss_bus_type = {
4644 + .name = "omapdss",
4645 + .match = dss_bus_match,
4646 + .dev_attrs = default_dev_attrs,
4647 + .drv_attrs = default_drv_attrs,
4648 +};
4649 +
4650 +static void dss_bus_release(struct device *dev)
4651 +{
4652 + DSSDBG("bus_release\n");
4653 +}
4654 +
4655 +static struct device dss_bus = {
4656 + .release = dss_bus_release,
4657 +};
4658 +
4659 +struct bus_type *dss_get_bus(void)
4660 +{
4661 + return &dss_bus_type;
4662 +}
4663 +
4664 +/* DRIVER */
4665 +static int dss_driver_probe(struct device *dev)
4666 +{
4667 + int r;
4668 + struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver);
4669 + struct omap_dss_device *dssdev = to_dss_device(dev);
4670 + struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
4671 + bool force;
4672 +
4673 + DSSDBG("driver_probe: dev %s/%s, drv %s\n",
4674 + dev_name(dev), dssdev->driver_name,
4675 + dssdrv->driver.name);
4676 +
4677 + dss_init_device(core.pdev, dssdev);
4678 +
4679 + /* skip this if the device is behind a ctrl */
4680 + if (!dssdev->panel.ctrl) {
4681 + force = pdata->default_device == dssdev;
4682 + dss_recheck_connections(dssdev, force);
4683 + }
4684 +
4685 + r = dssdrv->probe(dssdev);
4686 +
4687 + if (r) {
4688 + DSSERR("driver probe failed: %d\n", r);
4689 + return r;
4690 + }
4691 +
4692 + DSSDBG("probe done for device %s\n", dev_name(dev));
4693 +
4694 + dssdev->driver = dssdrv;
4695 +
4696 + return 0;
4697 +}
4698 +
4699 +static int dss_driver_remove(struct device *dev)
4700 +{
4701 + struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver);
4702 + struct omap_dss_device *dssdev = to_dss_device(dev);
4703 +
4704 + DSSDBG("driver_remove: dev %s/%s\n", dev_name(dev),
4705 + dssdev->driver_name);
4706 +
4707 + dssdrv->remove(dssdev);
4708 +
4709 + dss_uninit_device(core.pdev, dssdev);
4710 +
4711 + dssdev->driver = NULL;
4712 +
4713 + return 0;
4714 +}
4715 +
4716 +int omap_dss_register_driver(struct omap_dss_driver *dssdriver)
4717 +{
4718 + dssdriver->driver.bus = &dss_bus_type;
4719 + dssdriver->driver.probe = dss_driver_probe;
4720 + dssdriver->driver.remove = dss_driver_remove;
4721 + return driver_register(&dssdriver->driver);
4722 +}
4723 +EXPORT_SYMBOL(omap_dss_register_driver);
4724 +
4725 +void omap_dss_unregister_driver(struct omap_dss_driver *dssdriver)
4726 +{
4727 + driver_unregister(&dssdriver->driver);
4728 +}
4729 +EXPORT_SYMBOL(omap_dss_unregister_driver);
4730 +
4731 +/* DEVICE */
4732 +static void reset_device(struct device *dev, int check)
4733 +{
4734 + u8 *dev_p = (u8 *)dev;
4735 + u8 *dev_end = dev_p + sizeof(*dev);
4736 + void *saved_pdata;
4737 +
4738 + saved_pdata = dev->platform_data;
4739 + if (check) {
4740 + /*
4741 + * Check if there is any other setting than platform_data
4742 + * in struct device; warn that these will be reset by our
4743 + * init.
4744 + */
4745 + dev->platform_data = NULL;
4746 + while (dev_p < dev_end) {
4747 + if (*dev_p) {
4748 + WARN("%s: struct device fields will be "
4749 + "discarded\n",
4750 + __func__);
4751 + break;
4752 + }
4753 + dev_p++;
4754 + }
4755 + }
4756 + memset(dev, 0, sizeof(*dev));
4757 + dev->platform_data = saved_pdata;
4758 +}
4759 +
4760 +
4761 +static void omap_dss_dev_release(struct device *dev)
4762 +{
4763 + reset_device(dev, 0);
4764 +}
4765 +
4766 +int omap_dss_register_device(struct omap_dss_device *dssdev)
4767 +{
4768 + static int dev_num;
4769 + static int panel_num;
4770 + int r;
4771 +
4772 + WARN_ON(!dssdev->driver_name);
4773 +
4774 + reset_device(&dssdev->dev, 1);
4775 + dssdev->dev.bus = &dss_bus_type;
4776 + dssdev->dev.parent = &dss_bus;
4777 + dssdev->dev.release = omap_dss_dev_release;
4778 + dev_set_name(&dssdev->dev, "display%d", dev_num++);
4779 + r = device_register(&dssdev->dev);
4780 + if (r)
4781 + return r;
4782 +
4783 + if (dssdev->ctrl.panel) {
4784 + struct omap_dss_device *panel = dssdev->ctrl.panel;
4785 +
4786 + panel->panel.ctrl = dssdev;
4787 +
4788 + reset_device(&panel->dev, 1);
4789 + panel->dev.bus = &dss_bus_type;
4790 + panel->dev.parent = &dssdev->dev;
4791 + panel->dev.release = omap_dss_dev_release;
4792 + dev_set_name(&panel->dev, "panel%d", panel_num++);
4793 + r = device_register(&panel->dev);
4794 + if (r)
4795 + return r;
4796 + }
4797 +
4798 + return 0;
4799 +}
4800 +
4801 +void omap_dss_unregister_device(struct omap_dss_device *dssdev)
4802 +{
4803 + device_unregister(&dssdev->dev);
4804 +
4805 + if (dssdev->ctrl.panel) {
4806 + struct omap_dss_device *panel = dssdev->ctrl.panel;
4807 + device_unregister(&panel->dev);
4808 + }
4809 +}
4810 +
4811 +/* BUS */
4812 +static int omap_dss_bus_register(void)
4813 +{
4814 + int r;
4815 +
4816 + r = bus_register(&dss_bus_type);
4817 + if (r) {
4818 + DSSERR("bus register failed\n");
4819 + return r;
4820 + }
4821 +
4822 + dev_set_name(&dss_bus, "omapdss");
4823 + r = device_register(&dss_bus);
4824 + if (r) {
4825 + DSSERR("bus driver register failed\n");
4826 + bus_unregister(&dss_bus_type);
4827 + return r;
4828 + }
4829 +
4830 + return 0;
4831 +}
4832 +
4833 +/* INIT */
4834 +
4835 +#ifdef CONFIG_OMAP2_DSS_MODULE
4836 +static void omap_dss_bus_unregister(void)
4837 +{
4838 + device_unregister(&dss_bus);
4839 +
4840 + bus_unregister(&dss_bus_type);
4841 +}
4842 +
4843 +static int __init omap_dss_init(void)
4844 +{
4845 + int r;
4846 +
4847 + r = omap_dss_bus_register();
4848 + if (r)
4849 + return r;
4850 +
4851 + r = platform_driver_register(&omap_dss_driver);
4852 + if (r) {
4853 + omap_dss_bus_unregister();
4854 + return r;
4855 + }
4856 +
4857 + return 0;
4858 +}
4859 +
4860 +static void __exit omap_dss_exit(void)
4861 +{
4862 + platform_driver_unregister(&omap_dss_driver);
4863 +
4864 + omap_dss_bus_unregister();
4865 +}
4866 +
4867 +module_init(omap_dss_init);
4868 +module_exit(omap_dss_exit);
4869 +#else
4870 +static int __init omap_dss_init(void)
4871 +{
4872 + return omap_dss_bus_register();
4873 +}
4874 +
4875 +static int __init omap_dss_init2(void)
4876 +{
4877 + return platform_driver_register(&omap_dss_driver);
4878 +}
4879 +
4880 +core_initcall(omap_dss_init);
4881 +device_initcall(omap_dss_init2);
4882 +#endif
4883 +
4884 +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
4885 +MODULE_DESCRIPTION("OMAP2/3 Display Subsystem");
4886 +MODULE_LICENSE("GPL v2");
4887 +
4888 --- /dev/null
4889 +++ b/drivers/video/omap2/dss/dispc.c
4890 @@ -0,0 +1,3182 @@
4891 +/*
4892 + * linux/drivers/video/omap2/dss/dispc.c
4893 + *
4894 + * Copyright (C) 2009 Nokia Corporation
4895 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
4896 + *
4897 + * Some code and ideas taken from drivers/video/omap/ driver
4898 + * by Imre Deak.
4899 + *
4900 + * This program is free software; you can redistribute it and/or modify it
4901 + * under the terms of the GNU General Public License version 2 as published by
4902 + * the Free Software Foundation.
4903 + *
4904 + * This program is distributed in the hope that it will be useful, but WITHOUT
4905 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4906 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
4907 + * more details.
4908 + *
4909 + * You should have received a copy of the GNU General Public License along with
4910 + * this program. If not, see <http://www.gnu.org/licenses/>.
4911 + */
4912 +
4913 +#define DSS_SUBSYS_NAME "DISPC"
4914 +
4915 +#include <linux/kernel.h>
4916 +#include <linux/dma-mapping.h>
4917 +#include <linux/vmalloc.h>
4918 +#include <linux/clk.h>
4919 +#include <linux/io.h>
4920 +#include <linux/jiffies.h>
4921 +#include <linux/seq_file.h>
4922 +#include <linux/delay.h>
4923 +#include <linux/workqueue.h>
4924 +
4925 +#include <mach/sram.h>
4926 +#include <mach/board.h>
4927 +#include <mach/clock.h>
4928 +
4929 +#include <mach/display.h>
4930 +
4931 +#include "dss.h"
4932 +
4933 +/* DISPC */
4934 +#define DISPC_BASE 0x48050400
4935 +
4936 +#define DISPC_SZ_REGS SZ_1K
4937 +
4938 +struct dispc_reg { u16 idx; };
4939 +
4940 +#define DISPC_REG(idx) ((const struct dispc_reg) { idx })
4941 +
4942 +/* DISPC common */
4943 +#define DISPC_REVISION DISPC_REG(0x0000)
4944 +#define DISPC_SYSCONFIG DISPC_REG(0x0010)
4945 +#define DISPC_SYSSTATUS DISPC_REG(0x0014)
4946 +#define DISPC_IRQSTATUS DISPC_REG(0x0018)
4947 +#define DISPC_IRQENABLE DISPC_REG(0x001C)
4948 +#define DISPC_CONTROL DISPC_REG(0x0040)
4949 +#define DISPC_CONFIG DISPC_REG(0x0044)
4950 +#define DISPC_CAPABLE DISPC_REG(0x0048)
4951 +#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C)
4952 +#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050)
4953 +#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054)
4954 +#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058)
4955 +#define DISPC_LINE_STATUS DISPC_REG(0x005C)
4956 +#define DISPC_LINE_NUMBER DISPC_REG(0x0060)
4957 +#define DISPC_TIMING_H DISPC_REG(0x0064)
4958 +#define DISPC_TIMING_V DISPC_REG(0x0068)
4959 +#define DISPC_POL_FREQ DISPC_REG(0x006C)
4960 +#define DISPC_DIVISOR DISPC_REG(0x0070)
4961 +#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
4962 +#define DISPC_SIZE_DIG DISPC_REG(0x0078)
4963 +#define DISPC_SIZE_LCD DISPC_REG(0x007C)
4964 +
4965 +/* DISPC GFX plane */
4966 +#define DISPC_GFX_BA0 DISPC_REG(0x0080)
4967 +#define DISPC_GFX_BA1 DISPC_REG(0x0084)
4968 +#define DISPC_GFX_POSITION DISPC_REG(0x0088)
4969 +#define DISPC_GFX_SIZE DISPC_REG(0x008C)
4970 +#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
4971 +#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
4972 +#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
4973 +#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
4974 +#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
4975 +#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
4976 +#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
4977 +
4978 +#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4)
4979 +#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8)
4980 +#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC)
4981 +
4982 +#define DISPC_CPR_COEF_R DISPC_REG(0x0220)
4983 +#define DISPC_CPR_COEF_G DISPC_REG(0x0224)
4984 +#define DISPC_CPR_COEF_B DISPC_REG(0x0228)
4985 +
4986 +#define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
4987 +
4988 +/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
4989 +#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
4990 +
4991 +#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
4992 +#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
4993 +#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
4994 +#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
4995 +#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
4996 +#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
4997 +#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
4998 +#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
4999 +#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
5000 +#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
5001 +#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
5002 +#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
5003 +#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
5004 +
5005 +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
5006 +#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
5007 +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
5008 +#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
5009 +/* coef index i = {0, 1, 2, 3, 4} */
5010 +#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
5011 +/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
5012 +#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
5013 +
5014 +#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
5015 +
5016 +
5017 +#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
5018 + DISPC_IRQ_OCP_ERR | \
5019 + DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
5020 + DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
5021 + DISPC_IRQ_SYNC_LOST | \
5022 + DISPC_IRQ_SYNC_LOST_DIGIT)
5023 +
5024 +#define DISPC_MAX_NR_ISRS 8
5025 +
5026 +struct omap_dispc_isr_data {
5027 + omap_dispc_isr_t isr;
5028 + void *arg;
5029 + u32 mask;
5030 +};
5031 +
5032 +#define REG_GET(idx, start, end) \
5033 + FLD_GET(dispc_read_reg(idx), start, end)
5034 +
5035 +#define REG_FLD_MOD(idx, val, start, end) \
5036 + dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
5037 +
5038 +static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
5039 + DISPC_VID_ATTRIBUTES(0),
5040 + DISPC_VID_ATTRIBUTES(1) };
5041 +
5042 +static struct {
5043 + void __iomem *base;
5044 +
5045 + struct clk *dpll4_m4_ck;
5046 +
5047 + unsigned long cache_req_pck;
5048 + unsigned long cache_prate;
5049 + struct dispc_clock_info cache_cinfo;
5050 +
5051 + u32 fifo_size[3];
5052 +
5053 + spinlock_t irq_lock;
5054 + u32 irq_error_mask;
5055 + struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
5056 + u32 error_irqs;
5057 + struct work_struct error_work;
5058 +
5059 + u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
5060 +} dispc;
5061 +
5062 +static void _omap_dispc_set_irqs(void);
5063 +
5064 +static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
5065 +{
5066 + __raw_writel(val, dispc.base + idx.idx);
5067 +}
5068 +
5069 +static inline u32 dispc_read_reg(const struct dispc_reg idx)
5070 +{
5071 + return __raw_readl(dispc.base + idx.idx);
5072 +}
5073 +
5074 +#define SR(reg) \
5075 + dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
5076 +#define RR(reg) \
5077 + dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
5078 +
5079 +void dispc_save_context(void)
5080 +{
5081 + if (cpu_is_omap24xx())
5082 + return;
5083 +
5084 + SR(SYSCONFIG);
5085 + SR(IRQENABLE);
5086 + SR(CONTROL);
5087 + SR(CONFIG);
5088 + SR(DEFAULT_COLOR0);
5089 + SR(DEFAULT_COLOR1);
5090 + SR(TRANS_COLOR0);
5091 + SR(TRANS_COLOR1);
5092 + SR(LINE_NUMBER);
5093 + SR(TIMING_H);
5094 + SR(TIMING_V);
5095 + SR(POL_FREQ);
5096 + SR(DIVISOR);
5097 + SR(GLOBAL_ALPHA);
5098 + SR(SIZE_DIG);
5099 + SR(SIZE_LCD);
5100 +
5101 + SR(GFX_BA0);
5102 + SR(GFX_BA1);
5103 + SR(GFX_POSITION);
5104 + SR(GFX_SIZE);
5105 + SR(GFX_ATTRIBUTES);
5106 + SR(GFX_FIFO_THRESHOLD);
5107 + SR(GFX_ROW_INC);
5108 + SR(GFX_PIXEL_INC);
5109 + SR(GFX_WINDOW_SKIP);
5110 + SR(GFX_TABLE_BA);
5111 +
5112 + SR(DATA_CYCLE1);
5113 + SR(DATA_CYCLE2);
5114 + SR(DATA_CYCLE3);
5115 +
5116 + SR(CPR_COEF_R);
5117 + SR(CPR_COEF_G);
5118 + SR(CPR_COEF_B);
5119 +
5120 + SR(GFX_PRELOAD);
5121 +
5122 + /* VID1 */
5123 + SR(VID_BA0(0));
5124 + SR(VID_BA1(0));
5125 + SR(VID_POSITION(0));
5126 + SR(VID_SIZE(0));
5127 + SR(VID_ATTRIBUTES(0));
5128 + SR(VID_FIFO_THRESHOLD(0));
5129 + SR(VID_ROW_INC(0));
5130 + SR(VID_PIXEL_INC(0));
5131 + SR(VID_FIR(0));
5132 + SR(VID_PICTURE_SIZE(0));
5133 + SR(VID_ACCU0(0));
5134 + SR(VID_ACCU1(0));
5135 +
5136 + SR(VID_FIR_COEF_H(0, 0));
5137 + SR(VID_FIR_COEF_H(0, 1));
5138 + SR(VID_FIR_COEF_H(0, 2));
5139 + SR(VID_FIR_COEF_H(0, 3));
5140 + SR(VID_FIR_COEF_H(0, 4));
5141 + SR(VID_FIR_COEF_H(0, 5));
5142 + SR(VID_FIR_COEF_H(0, 6));
5143 + SR(VID_FIR_COEF_H(0, 7));
5144 +
5145 + SR(VID_FIR_COEF_HV(0, 0));
5146 + SR(VID_FIR_COEF_HV(0, 1));
5147 + SR(VID_FIR_COEF_HV(0, 2));
5148 + SR(VID_FIR_COEF_HV(0, 3));
5149 + SR(VID_FIR_COEF_HV(0, 4));
5150 + SR(VID_FIR_COEF_HV(0, 5));
5151 + SR(VID_FIR_COEF_HV(0, 6));
5152 + SR(VID_FIR_COEF_HV(0, 7));
5153 +
5154 + SR(VID_CONV_COEF(0, 0));
5155 + SR(VID_CONV_COEF(0, 1));
5156 + SR(VID_CONV_COEF(0, 2));
5157 + SR(VID_CONV_COEF(0, 3));
5158 + SR(VID_CONV_COEF(0, 4));
5159 +
5160 + SR(VID_FIR_COEF_V(0, 0));
5161 + SR(VID_FIR_COEF_V(0, 1));
5162 + SR(VID_FIR_COEF_V(0, 2));
5163 + SR(VID_FIR_COEF_V(0, 3));
5164 + SR(VID_FIR_COEF_V(0, 4));
5165 + SR(VID_FIR_COEF_V(0, 5));
5166 + SR(VID_FIR_COEF_V(0, 6));
5167 + SR(VID_FIR_COEF_V(0, 7));
5168 +
5169 + SR(VID_PRELOAD(0));
5170 +
5171 + /* VID2 */
5172 + SR(VID_BA0(1));
5173 + SR(VID_BA1(1));
5174 + SR(VID_POSITION(1));
5175 + SR(VID_SIZE(1));
5176 + SR(VID_ATTRIBUTES(1));
5177 + SR(VID_FIFO_THRESHOLD(1));
5178 + SR(VID_ROW_INC(1));
5179 + SR(VID_PIXEL_INC(1));
5180 + SR(VID_FIR(1));
5181 + SR(VID_PICTURE_SIZE(1));
5182 + SR(VID_ACCU0(1));
5183 + SR(VID_ACCU1(1));
5184 +
5185 + SR(VID_FIR_COEF_H(1, 0));
5186 + SR(VID_FIR_COEF_H(1, 1));
5187 + SR(VID_FIR_COEF_H(1, 2));
5188 + SR(VID_FIR_COEF_H(1, 3));
5189 + SR(VID_FIR_COEF_H(1, 4));
5190 + SR(VID_FIR_COEF_H(1, 5));
5191 + SR(VID_FIR_COEF_H(1, 6));
5192 + SR(VID_FIR_COEF_H(1, 7));
5193 +
5194 + SR(VID_FIR_COEF_HV(1, 0));
5195 + SR(VID_FIR_COEF_HV(1, 1));
5196 + SR(VID_FIR_COEF_HV(1, 2));
5197 + SR(VID_FIR_COEF_HV(1, 3));
5198 + SR(VID_FIR_COEF_HV(1, 4));
5199 + SR(VID_FIR_COEF_HV(1, 5));
5200 + SR(VID_FIR_COEF_HV(1, 6));
5201 + SR(VID_FIR_COEF_HV(1, 7));
5202 +
5203 + SR(VID_CONV_COEF(1, 0));
5204 + SR(VID_CONV_COEF(1, 1));
5205 + SR(VID_CONV_COEF(1, 2));
5206 + SR(VID_CONV_COEF(1, 3));
5207 + SR(VID_CONV_COEF(1, 4));
5208 +
5209 + SR(VID_FIR_COEF_V(1, 0));
5210 + SR(VID_FIR_COEF_V(1, 1));
5211 + SR(VID_FIR_COEF_V(1, 2));
5212 + SR(VID_FIR_COEF_V(1, 3));
5213 + SR(VID_FIR_COEF_V(1, 4));
5214 + SR(VID_FIR_COEF_V(1, 5));
5215 + SR(VID_FIR_COEF_V(1, 6));
5216 + SR(VID_FIR_COEF_V(1, 7));
5217 +
5218 + SR(VID_PRELOAD(1));
5219 +}
5220 +
5221 +void dispc_restore_context(void)
5222 +{
5223 + RR(SYSCONFIG);
5224 + RR(IRQENABLE);
5225 + /*RR(CONTROL);*/
5226 + RR(CONFIG);
5227 + RR(DEFAULT_COLOR0);
5228 + RR(DEFAULT_COLOR1);
5229 + RR(TRANS_COLOR0);
5230 + RR(TRANS_COLOR1);
5231 + RR(LINE_NUMBER);
5232 + RR(TIMING_H);
5233 + RR(TIMING_V);
5234 + RR(POL_FREQ);
5235 + RR(DIVISOR);
5236 + RR(GLOBAL_ALPHA);
5237 + RR(SIZE_DIG);
5238 + RR(SIZE_LCD);
5239 +
5240 + RR(GFX_BA0);
5241 + RR(GFX_BA1);
5242 + RR(GFX_POSITION);
5243 + RR(GFX_SIZE);
5244 + RR(GFX_ATTRIBUTES);
5245 + RR(GFX_FIFO_THRESHOLD);
5246 + RR(GFX_ROW_INC);
5247 + RR(GFX_PIXEL_INC);
5248 + RR(GFX_WINDOW_SKIP);
5249 + RR(GFX_TABLE_BA);
5250 +
5251 + RR(DATA_CYCLE1);
5252 + RR(DATA_CYCLE2);
5253 + RR(DATA_CYCLE3);
5254 +
5255 + RR(CPR_COEF_R);
5256 + RR(CPR_COEF_G);
5257 + RR(CPR_COEF_B);
5258 +
5259 + RR(GFX_PRELOAD);
5260 +
5261 + /* VID1 */
5262 + RR(VID_BA0(0));
5263 + RR(VID_BA1(0));
5264 + RR(VID_POSITION(0));
5265 + RR(VID_SIZE(0));
5266 + RR(VID_ATTRIBUTES(0));
5267 + RR(VID_FIFO_THRESHOLD(0));
5268 + RR(VID_ROW_INC(0));
5269 + RR(VID_PIXEL_INC(0));
5270 + RR(VID_FIR(0));
5271 + RR(VID_PICTURE_SIZE(0));
5272 + RR(VID_ACCU0(0));
5273 + RR(VID_ACCU1(0));
5274 +
5275 + RR(VID_FIR_COEF_H(0, 0));
5276 + RR(VID_FIR_COEF_H(0, 1));
5277 + RR(VID_FIR_COEF_H(0, 2));
5278 + RR(VID_FIR_COEF_H(0, 3));
5279 + RR(VID_FIR_COEF_H(0, 4));
5280 + RR(VID_FIR_COEF_H(0, 5));
5281 + RR(VID_FIR_COEF_H(0, 6));
5282 + RR(VID_FIR_COEF_H(0, 7));
5283 +
5284 + RR(VID_FIR_COEF_HV(0, 0));
5285 + RR(VID_FIR_COEF_HV(0, 1));
5286 + RR(VID_FIR_COEF_HV(0, 2));
5287 + RR(VID_FIR_COEF_HV(0, 3));
5288 + RR(VID_FIR_COEF_HV(0, 4));
5289 + RR(VID_FIR_COEF_HV(0, 5));
5290 + RR(VID_FIR_COEF_HV(0, 6));
5291 + RR(VID_FIR_COEF_HV(0, 7));
5292 +
5293 + RR(VID_CONV_COEF(0, 0));
5294 + RR(VID_CONV_COEF(0, 1));
5295 + RR(VID_CONV_COEF(0, 2));
5296 + RR(VID_CONV_COEF(0, 3));
5297 + RR(VID_CONV_COEF(0, 4));
5298 +
5299 + RR(VID_FIR_COEF_V(0, 0));
5300 + RR(VID_FIR_COEF_V(0, 1));
5301 + RR(VID_FIR_COEF_V(0, 2));
5302 + RR(VID_FIR_COEF_V(0, 3));
5303 + RR(VID_FIR_COEF_V(0, 4));
5304 + RR(VID_FIR_COEF_V(0, 5));
5305 + RR(VID_FIR_COEF_V(0, 6));
5306 + RR(VID_FIR_COEF_V(0, 7));
5307 +
5308 + RR(VID_PRELOAD(0));
5309 +
5310 + /* VID2 */
5311 + RR(VID_BA0(1));
5312 + RR(VID_BA1(1));
5313 + RR(VID_POSITION(1));
5314 + RR(VID_SIZE(1));
5315 + RR(VID_ATTRIBUTES(1));
5316 + RR(VID_FIFO_THRESHOLD(1));
5317 + RR(VID_ROW_INC(1));
5318 + RR(VID_PIXEL_INC(1));
5319 + RR(VID_FIR(1));
5320 + RR(VID_PICTURE_SIZE(1));
5321 + RR(VID_ACCU0(1));
5322 + RR(VID_ACCU1(1));
5323 +
5324 + RR(VID_FIR_COEF_H(1, 0));
5325 + RR(VID_FIR_COEF_H(1, 1));
5326 + RR(VID_FIR_COEF_H(1, 2));
5327 + RR(VID_FIR_COEF_H(1, 3));
5328 + RR(VID_FIR_COEF_H(1, 4));
5329 + RR(VID_FIR_COEF_H(1, 5));
5330 + RR(VID_FIR_COEF_H(1, 6));
5331 + RR(VID_FIR_COEF_H(1, 7));
5332 +
5333 + RR(VID_FIR_COEF_HV(1, 0));
5334 + RR(VID_FIR_COEF_HV(1, 1));
5335 + RR(VID_FIR_COEF_HV(1, 2));
5336 + RR(VID_FIR_COEF_HV(1, 3));
5337 + RR(VID_FIR_COEF_HV(1, 4));
5338 + RR(VID_FIR_COEF_HV(1, 5));
5339 + RR(VID_FIR_COEF_HV(1, 6));
5340 + RR(VID_FIR_COEF_HV(1, 7));
5341 +
5342 + RR(VID_CONV_COEF(1, 0));
5343 + RR(VID_CONV_COEF(1, 1));
5344 + RR(VID_CONV_COEF(1, 2));
5345 + RR(VID_CONV_COEF(1, 3));
5346 + RR(VID_CONV_COEF(1, 4));
5347 +
5348 + RR(VID_FIR_COEF_V(1, 0));
5349 + RR(VID_FIR_COEF_V(1, 1));
5350 + RR(VID_FIR_COEF_V(1, 2));
5351 + RR(VID_FIR_COEF_V(1, 3));
5352 + RR(VID_FIR_COEF_V(1, 4));
5353 + RR(VID_FIR_COEF_V(1, 5));
5354 + RR(VID_FIR_COEF_V(1, 6));
5355 + RR(VID_FIR_COEF_V(1, 7));
5356 +
5357 + RR(VID_PRELOAD(1));
5358 +
5359 + /* enable last, because LCD & DIGIT enable are here */
5360 + RR(CONTROL);
5361 +}
5362 +
5363 +#undef SR
5364 +#undef RR
5365 +
5366 +static inline void enable_clocks(bool enable)
5367 +{
5368 + if (enable)
5369 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
5370 + else
5371 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
5372 +}
5373 +
5374 +bool dispc_go_busy(enum omap_channel channel)
5375 +{
5376 + int bit;
5377 +
5378 + if (channel == OMAP_DSS_CHANNEL_LCD)
5379 + bit = 5; /* GOLCD */
5380 + else
5381 + bit = 6; /* GODIGIT */
5382 +
5383 + return REG_GET(DISPC_CONTROL, bit, bit) == 1;
5384 +}
5385 +
5386 +void dispc_go(enum omap_channel channel)
5387 +{
5388 + int bit;
5389 +
5390 + enable_clocks(1);
5391 +
5392 + if (channel == OMAP_DSS_CHANNEL_LCD)
5393 + bit = 0; /* LCDENABLE */
5394 + else
5395 + bit = 1; /* DIGITALENABLE */
5396 +
5397 + /* if the channel is not enabled, we don't need GO */
5398 + if (REG_GET(DISPC_CONTROL, bit, bit) == 0)
5399 + goto end;
5400 +
5401 + if (channel == OMAP_DSS_CHANNEL_LCD)
5402 + bit = 5; /* GOLCD */
5403 + else
5404 + bit = 6; /* GODIGIT */
5405 +
5406 + if (REG_GET(DISPC_CONTROL, bit, bit) == 1) {
5407 + DSSERR("GO bit not down for channel %d\n", channel);
5408 + goto end;
5409 + }
5410 +
5411 + DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT");
5412 +
5413 + REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
5414 +end:
5415 + enable_clocks(0);
5416 +}
5417 +
5418 +static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
5419 +{
5420 + BUG_ON(plane == OMAP_DSS_GFX);
5421 +
5422 + dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
5423 +}
5424 +
5425 +static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
5426 +{
5427 + BUG_ON(plane == OMAP_DSS_GFX);
5428 +
5429 + dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
5430 +}
5431 +
5432 +static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
5433 +{
5434 + BUG_ON(plane == OMAP_DSS_GFX);
5435 +
5436 + dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
5437 +}
5438 +
5439 +static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
5440 + int vscaleup, int five_taps)
5441 +{
5442 + /* Coefficients for horizontal up-sampling */
5443 + static const u32 coef_hup[8] = {
5444 + 0x00800000,
5445 + 0x0D7CF800,
5446 + 0x1E70F5FF,
5447 + 0x335FF5FE,
5448 + 0xF74949F7,
5449 + 0xF55F33FB,
5450 + 0xF5701EFE,
5451 + 0xF87C0DFF,
5452 + };
5453 +
5454 + /* Coefficients for horizontal down-sampling */
5455 + static const u32 coef_hdown[8] = {
5456 + 0x24382400,
5457 + 0x28371FFE,
5458 + 0x2C361BFB,
5459 + 0x303516F9,
5460 + 0x11343311,
5461 + 0x1635300C,
5462 + 0x1B362C08,
5463 + 0x1F372804,
5464 + };
5465 +
5466 + /* Coefficients for horizontal and vertical up-sampling */
5467 + static const u32 coef_hvup[2][8] = {
5468 + {
5469 + 0x00800000,
5470 + 0x037B02FF,
5471 + 0x0C6F05FE,
5472 + 0x205907FB,
5473 + 0x00404000,
5474 + 0x075920FE,
5475 + 0x056F0CFF,
5476 + 0x027B0300,
5477 + },
5478 + {
5479 + 0x00800000,
5480 + 0x0D7CF8FF,
5481 + 0x1E70F5FE,
5482 + 0x335FF5FB,
5483 + 0xF7404000,
5484 + 0xF55F33FE,
5485 + 0xF5701EFF,
5486 + 0xF87C0D00,
5487 + },
5488 + };
5489 +
5490 + /* Coefficients for horizontal and vertical down-sampling */
5491 + static const u32 coef_hvdown[2][8] = {
5492 + {
5493 + 0x24382400,
5494 + 0x28391F04,
5495 + 0x2D381B08,
5496 + 0x3237170C,
5497 + 0x123737F7,
5498 + 0x173732F9,
5499 + 0x1B382DFB,
5500 + 0x1F3928FE,
5501 + },
5502 + {
5503 + 0x24382400,
5504 + 0x28371F04,
5505 + 0x2C361B08,
5506 + 0x3035160C,
5507 + 0x113433F7,
5508 + 0x163530F9,
5509 + 0x1B362CFB,
5510 + 0x1F3728FE,
5511 + },
5512 + };
5513 +
5514 + /* Coefficients for vertical up-sampling */
5515 + static const u32 coef_vup[8] = {
5516 + 0x00000000,
5517 + 0x0000FF00,
5518 + 0x0000FEFF,
5519 + 0x0000FBFE,
5520 + 0x000000F7,
5521 + 0x0000FEFB,
5522 + 0x0000FFFE,
5523 + 0x000000FF,
5524 + };
5525 +
5526 +
5527 + /* Coefficients for vertical down-sampling */
5528 + static const u32 coef_vdown[8] = {
5529 + 0x00000000,
5530 + 0x000004FE,
5531 + 0x000008FB,
5532 + 0x00000CF9,
5533 + 0x0000F711,
5534 + 0x0000F90C,
5535 + 0x0000FB08,
5536 + 0x0000FE04,
5537 + };
5538 +
5539 + const u32 *h_coef;
5540 + const u32 *hv_coef;
5541 + const u32 *hv_coef_mod;
5542 + const u32 *v_coef;
5543 + int i;
5544 +
5545 + if (hscaleup)
5546 + h_coef = coef_hup;
5547 + else
5548 + h_coef = coef_hdown;
5549 +
5550 + if (vscaleup) {
5551 + hv_coef = coef_hvup[five_taps];
5552 + v_coef = coef_vup;
5553 +
5554 + if (hscaleup)
5555 + hv_coef_mod = NULL;
5556 + else
5557 + hv_coef_mod = coef_hvdown[five_taps];
5558 + } else {
5559 + hv_coef = coef_hvdown[five_taps];
5560 + v_coef = coef_vdown;
5561 +
5562 + if (hscaleup)
5563 + hv_coef_mod = coef_hvup[five_taps];
5564 + else
5565 + hv_coef_mod = NULL;
5566 + }
5567 +
5568 + for (i = 0; i < 8; i++) {
5569 + u32 h, hv;
5570 +
5571 + h = h_coef[i];
5572 +
5573 + hv = hv_coef[i];
5574 +
5575 + if (hv_coef_mod) {
5576 + hv &= 0xffffff00;
5577 + hv |= (hv_coef_mod[i] & 0xff);
5578 + }
5579 +
5580 + _dispc_write_firh_reg(plane, i, h);
5581 + _dispc_write_firhv_reg(plane, i, hv);
5582 + }
5583 +
5584 + if (!five_taps)
5585 + return;
5586 +
5587 + for (i = 0; i < 8; i++) {
5588 + u32 v;
5589 + v = v_coef[i];
5590 + _dispc_write_firv_reg(plane, i, v);
5591 + }
5592 +}
5593 +
5594 +static void _dispc_setup_color_conv_coef(void)
5595 +{
5596 + const struct color_conv_coef {
5597 + int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
5598 + int full_range;
5599 + } ctbl_bt601_5 = {
5600 + 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
5601 + };
5602 +
5603 + const struct color_conv_coef *ct;
5604 +
5605 +#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
5606 +
5607 + ct = &ctbl_bt601_5;
5608 +
5609 + dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
5610 + dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
5611 + dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
5612 + dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
5613 + dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
5614 +
5615 + dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
5616 + dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
5617 + dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
5618 + dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
5619 + dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
5620 +
5621 +#undef CVAL
5622 +
5623 + REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
5624 + REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
5625 +}
5626 +
5627 +
5628 +static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
5629 +{
5630 + const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
5631 + DISPC_VID_BA0(0),
5632 + DISPC_VID_BA0(1) };
5633 +
5634 + dispc_write_reg(ba0_reg[plane], paddr);
5635 +}
5636 +
5637 +static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
5638 +{
5639 + const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
5640 + DISPC_VID_BA1(0),
5641 + DISPC_VID_BA1(1) };
5642 +
5643 + dispc_write_reg(ba1_reg[plane], paddr);
5644 +}
5645 +
5646 +static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
5647 +{
5648 + const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
5649 + DISPC_VID_POSITION(0),
5650 + DISPC_VID_POSITION(1) };
5651 +
5652 + u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
5653 + dispc_write_reg(pos_reg[plane], val);
5654 +}
5655 +
5656 +static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
5657 +{
5658 + const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
5659 + DISPC_VID_PICTURE_SIZE(0),
5660 + DISPC_VID_PICTURE_SIZE(1) };
5661 + u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
5662 + dispc_write_reg(siz_reg[plane], val);
5663 +}
5664 +
5665 +static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
5666 +{
5667 + u32 val;
5668 + const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
5669 + DISPC_VID_SIZE(1) };
5670 +
5671 + BUG_ON(plane == OMAP_DSS_GFX);
5672 +
5673 + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
5674 + dispc_write_reg(vsi_reg[plane-1], val);
5675 +}
5676 +
5677 +static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
5678 +{
5679 +
5680 + BUG_ON(plane == OMAP_DSS_VIDEO1);
5681 +
5682 + if (plane == OMAP_DSS_GFX)
5683 + REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0);
5684 + else if (plane == OMAP_DSS_VIDEO2)
5685 + REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16);
5686 +}
5687 +
5688 +static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc)
5689 +{
5690 + const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
5691 + DISPC_VID_PIXEL_INC(0),
5692 + DISPC_VID_PIXEL_INC(1) };
5693 +
5694 + dispc_write_reg(ri_reg[plane], inc);
5695 +}
5696 +
5697 +static void _dispc_set_row_inc(enum omap_plane plane, s32 inc)
5698 +{
5699 + const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
5700 + DISPC_VID_ROW_INC(0),
5701 + DISPC_VID_ROW_INC(1) };
5702 +
5703 + dispc_write_reg(ri_reg[plane], inc);
5704 +}
5705 +
5706 +static void _dispc_set_color_mode(enum omap_plane plane,
5707 + enum omap_color_mode color_mode)
5708 +{
5709 + u32 m = 0;
5710 +
5711 + switch (color_mode) {
5712 + case OMAP_DSS_COLOR_CLUT1:
5713 + m = 0x0; break;
5714 + case OMAP_DSS_COLOR_CLUT2:
5715 + m = 0x1; break;
5716 + case OMAP_DSS_COLOR_CLUT4:
5717 + m = 0x2; break;
5718 + case OMAP_DSS_COLOR_CLUT8:
5719 + m = 0x3; break;
5720 + case OMAP_DSS_COLOR_RGB12U:
5721 + m = 0x4; break;
5722 + case OMAP_DSS_COLOR_ARGB16:
5723 + m = 0x5; break;
5724 + case OMAP_DSS_COLOR_RGB16:
5725 + m = 0x6; break;
5726 + case OMAP_DSS_COLOR_RGB24U:
5727 + m = 0x8; break;
5728 + case OMAP_DSS_COLOR_RGB24P:
5729 + m = 0x9; break;
5730 + case OMAP_DSS_COLOR_YUV2:
5731 + m = 0xa; break;
5732 + case OMAP_DSS_COLOR_UYVY:
5733 + m = 0xb; break;
5734 + case OMAP_DSS_COLOR_ARGB32:
5735 + m = 0xc; break;
5736 + case OMAP_DSS_COLOR_RGBA32:
5737 + m = 0xd; break;
5738 + case OMAP_DSS_COLOR_RGBX32:
5739 + m = 0xe; break;
5740 + default:
5741 + BUG(); break;
5742 + }
5743 +
5744 + REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
5745 +}
5746 +
5747 +static void _dispc_set_channel_out(enum omap_plane plane,
5748 + enum omap_channel channel)
5749 +{
5750 + int shift;
5751 + u32 val;
5752 +
5753 + switch (plane) {
5754 + case OMAP_DSS_GFX:
5755 + shift = 8;
5756 + break;
5757 + case OMAP_DSS_VIDEO1:
5758 + case OMAP_DSS_VIDEO2:
5759 + shift = 16;
5760 + break;
5761 + default:
5762 + BUG();
5763 + return;
5764 + }
5765 +
5766 + val = dispc_read_reg(dispc_reg_att[plane]);
5767 + val = FLD_MOD(val, channel, shift, shift);
5768 + dispc_write_reg(dispc_reg_att[plane], val);
5769 +}
5770 +
5771 +void dispc_set_burst_size(enum omap_plane plane,
5772 + enum omap_burst_size burst_size)
5773 +{
5774 + int shift;
5775 + u32 val;
5776 +
5777 + enable_clocks(1);
5778 +
5779 + switch (plane) {
5780 + case OMAP_DSS_GFX:
5781 + shift = 6;
5782 + break;
5783 + case OMAP_DSS_VIDEO1:
5784 + case OMAP_DSS_VIDEO2:
5785 + shift = 14;
5786 + break;
5787 + default:
5788 + BUG();
5789 + return;
5790 + }
5791 +
5792 + val = dispc_read_reg(dispc_reg_att[plane]);
5793 + val = FLD_MOD(val, burst_size, shift+1, shift);
5794 + dispc_write_reg(dispc_reg_att[plane], val);
5795 +
5796 + enable_clocks(0);
5797 +}
5798 +
5799 +static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
5800 +{
5801 + u32 val;
5802 +
5803 + BUG_ON(plane == OMAP_DSS_GFX);
5804 +
5805 + val = dispc_read_reg(dispc_reg_att[plane]);
5806 + val = FLD_MOD(val, enable, 9, 9);
5807 + dispc_write_reg(dispc_reg_att[plane], val);
5808 +}
5809 +
5810 +void dispc_enable_replication(enum omap_plane plane, bool enable)
5811 +{
5812 + int bit;
5813 +
5814 + if (plane == OMAP_DSS_GFX)
5815 + bit = 5;
5816 + else
5817 + bit = 10;
5818 +
5819 + enable_clocks(1);
5820 + REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit);
5821 + enable_clocks(0);
5822 +}
5823 +
5824 +void dispc_set_lcd_size(u16 width, u16 height)
5825 +{
5826 + u32 val;
5827 + BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
5828 + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
5829 + enable_clocks(1);
5830 + dispc_write_reg(DISPC_SIZE_LCD, val);
5831 + enable_clocks(0);
5832 +}
5833 +
5834 +void dispc_set_digit_size(u16 width, u16 height)
5835 +{
5836 + u32 val;
5837 + BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
5838 + val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
5839 + enable_clocks(1);
5840 + dispc_write_reg(DISPC_SIZE_DIG, val);
5841 + enable_clocks(0);
5842 +}
5843 +
5844 +static void dispc_read_plane_fifo_sizes(void)
5845 +{
5846 + const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
5847 + DISPC_VID_FIFO_SIZE_STATUS(0),
5848 + DISPC_VID_FIFO_SIZE_STATUS(1) };
5849 + u32 size;
5850 + int plane;
5851 +
5852 + enable_clocks(1);
5853 +
5854 + for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) {
5855 + if (cpu_is_omap24xx())
5856 + size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0);
5857 + else if (cpu_is_omap34xx())
5858 + size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0);
5859 + else
5860 + BUG();
5861 +
5862 + dispc.fifo_size[plane] = size;
5863 + }
5864 +
5865 + enable_clocks(0);
5866 +}
5867 +
5868 +u32 dispc_get_plane_fifo_size(enum omap_plane plane)
5869 +{
5870 + return dispc.fifo_size[plane];
5871 +}
5872 +
5873 +void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
5874 +{
5875 + const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
5876 + DISPC_VID_FIFO_THRESHOLD(0),
5877 + DISPC_VID_FIFO_THRESHOLD(1) };
5878 + enable_clocks(1);
5879 +
5880 + DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
5881 + plane,
5882 + REG_GET(ftrs_reg[plane], 11, 0),
5883 + REG_GET(ftrs_reg[plane], 27, 16),
5884 + low, high);
5885 +
5886 + if (cpu_is_omap24xx())
5887 + dispc_write_reg(ftrs_reg[plane],
5888 + FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0));
5889 + else
5890 + dispc_write_reg(ftrs_reg[plane],
5891 + FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0));
5892 +
5893 + enable_clocks(0);
5894 +}
5895 +
5896 +void dispc_enable_fifomerge(bool enable)
5897 +{
5898 + enable_clocks(1);
5899 +
5900 + DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
5901 + REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
5902 +
5903 + enable_clocks(0);
5904 +}
5905 +
5906 +static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
5907 +{
5908 + u32 val;
5909 + const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
5910 + DISPC_VID_FIR(1) };
5911 +
5912 + BUG_ON(plane == OMAP_DSS_GFX);
5913 +
5914 + if (cpu_is_omap24xx())
5915 + val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0);
5916 + else
5917 + val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0);
5918 + dispc_write_reg(fir_reg[plane-1], val);
5919 +}
5920 +
5921 +static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
5922 +{
5923 + u32 val;
5924 + const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
5925 + DISPC_VID_ACCU0(1) };
5926 +
5927 + BUG_ON(plane == OMAP_DSS_GFX);
5928 +
5929 + val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
5930 + dispc_write_reg(ac0_reg[plane-1], val);
5931 +}
5932 +
5933 +static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
5934 +{
5935 + u32 val;
5936 + const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
5937 + DISPC_VID_ACCU1(1) };
5938 +
5939 + BUG_ON(plane == OMAP_DSS_GFX);
5940 +
5941 + val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
5942 + dispc_write_reg(ac1_reg[plane-1], val);
5943 +}
5944 +
5945 +
5946 +static void _dispc_set_scaling(enum omap_plane plane,
5947 + u16 orig_width, u16 orig_height,
5948 + u16 out_width, u16 out_height,
5949 + bool ilace, bool five_taps,
5950 + bool fieldmode)
5951 +{
5952 + int fir_hinc;
5953 + int fir_vinc;
5954 + int hscaleup, vscaleup;
5955 + int accu0 = 0;
5956 + int accu1 = 0;
5957 + u32 l;
5958 +
5959 + BUG_ON(plane == OMAP_DSS_GFX);
5960 +
5961 + hscaleup = orig_width <= out_width;
5962 + vscaleup = orig_height <= out_height;
5963 +
5964 + _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
5965 +
5966 + if (!orig_width || orig_width == out_width)
5967 + fir_hinc = 0;
5968 + else
5969 + fir_hinc = 1024 * orig_width / out_width;
5970 +
5971 + if (!orig_height || orig_height == out_height)
5972 + fir_vinc = 0;
5973 + else
5974 + fir_vinc = 1024 * orig_height / out_height;
5975 +
5976 + _dispc_set_fir(plane, fir_hinc, fir_vinc);
5977 +
5978 + l = dispc_read_reg(dispc_reg_att[plane]);
5979 + l &= ~((0x0f << 5) | (0x3 << 21));
5980 +
5981 + l |= fir_hinc ? (1 << 5) : 0;
5982 + l |= fir_vinc ? (1 << 6) : 0;
5983 +
5984 + l |= hscaleup ? 0 : (1 << 7);
5985 + l |= vscaleup ? 0 : (1 << 8);
5986 +
5987 + l |= five_taps ? (1 << 21) : 0;
5988 + l |= five_taps ? (1 << 22) : 0;
5989 +
5990 + dispc_write_reg(dispc_reg_att[plane], l);
5991 +
5992 + /*
5993 + * field 0 = even field = bottom field
5994 + * field 1 = odd field = top field
5995 + */
5996 + if (ilace && !fieldmode) {
5997 + accu1 = 0;
5998 + accu0 = (fir_vinc / 2) & 0x3ff;
5999 + if (accu0 >= 1024/2) {
6000 + accu1 = 1024/2;
6001 + accu0 -= accu1;
6002 + }
6003 + }
6004 +
6005 + _dispc_set_vid_accu0(plane, 0, accu0);
6006 + _dispc_set_vid_accu1(plane, 0, accu1);
6007 +}
6008 +
6009 +static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
6010 + bool mirroring, enum omap_color_mode color_mode)
6011 +{
6012 + if (color_mode == OMAP_DSS_COLOR_YUV2 ||
6013 + color_mode == OMAP_DSS_COLOR_UYVY) {
6014 + int vidrot = 0;
6015 +
6016 + if (mirroring) {
6017 + switch (rotation) {
6018 + case 0:
6019 + vidrot = 2;
6020 + break;
6021 + case 1:
6022 + vidrot = 1;
6023 + break;
6024 + case 2:
6025 + vidrot = 0;
6026 + break;
6027 + case 3:
6028 + vidrot = 3;
6029 + break;
6030 + }
6031 + } else {
6032 + switch (rotation) {
6033 + case 0:
6034 + vidrot = 0;
6035 + break;
6036 + case 1:
6037 + vidrot = 1;
6038 + break;
6039 + case 2:
6040 + vidrot = 2;
6041 + break;
6042 + case 3:
6043 + vidrot = 3;
6044 + break;
6045 + }
6046 + }
6047 +
6048 + REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
6049 +
6050 + if (rotation == 1 || rotation == 3)
6051 + REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18);
6052 + else
6053 + REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18);
6054 + } else {
6055 + REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12);
6056 + REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18);
6057 + }
6058 +}
6059 +
6060 +static s32 pixinc(int pixels, u8 ps)
6061 +{
6062 + if (pixels == 1)
6063 + return 1;
6064 + else if (pixels > 1)
6065 + return 1 + (pixels - 1) * ps;
6066 + else if (pixels < 0)
6067 + return 1 - (-pixels + 1) * ps;
6068 + else
6069 + BUG();
6070 +}
6071 +
6072 +static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
6073 + u16 screen_width,
6074 + u16 width, u16 height,
6075 + enum omap_color_mode color_mode, bool fieldmode,
6076 + unsigned int field_offset,
6077 + unsigned *offset0, unsigned *offset1,
6078 + s32 *row_inc, s32 *pix_inc)
6079 +{
6080 + u8 ps;
6081 +
6082 + switch (color_mode) {
6083 + case OMAP_DSS_COLOR_RGB16:
6084 + case OMAP_DSS_COLOR_ARGB16:
6085 + ps = 2;
6086 + break;
6087 +
6088 + case OMAP_DSS_COLOR_RGB24P:
6089 + ps = 3;
6090 + break;
6091 +
6092 + case OMAP_DSS_COLOR_RGB24U:
6093 + case OMAP_DSS_COLOR_ARGB32:
6094 + case OMAP_DSS_COLOR_RGBA32:
6095 + case OMAP_DSS_COLOR_RGBX32:
6096 + case OMAP_DSS_COLOR_YUV2:
6097 + case OMAP_DSS_COLOR_UYVY:
6098 + ps = 4;
6099 + break;
6100 +
6101 + default:
6102 + BUG();
6103 + return;
6104 + }
6105 +
6106 + DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
6107 + width, height);
6108 +
6109 + /*
6110 + * field 0 = even field = bottom field
6111 + * field 1 = odd field = top field
6112 + */
6113 + switch (rotation + mirror * 4) {
6114 + case 0:
6115 + case 2:
6116 + /*
6117 + * If the pixel format is YUV or UYVY divide the width
6118 + * of the image by 2 for 0 and 180 degree rotation.
6119 + */
6120 + if (color_mode == OMAP_DSS_COLOR_YUV2 ||
6121 + color_mode == OMAP_DSS_COLOR_UYVY)
6122 + width = width >> 1;
6123 + case 1:
6124 + case 3:
6125 + *offset1 = 0;
6126 + if (field_offset)
6127 + *offset0 = field_offset * screen_width * ps;
6128 + else
6129 + *offset0 = 0;
6130 +
6131 + *row_inc = pixinc(1 + (screen_width - width) +
6132 + (fieldmode ? screen_width : 0),
6133 + ps);
6134 + *pix_inc = pixinc(1, ps);
6135 + break;
6136 +
6137 + case 4:
6138 + case 6:
6139 + /* If the pixel format is YUV or UYVY divide the width
6140 + * of the image by 2 for 0 degree and 180 degree
6141 + */
6142 + if (color_mode == OMAP_DSS_COLOR_YUV2 ||
6143 + color_mode == OMAP_DSS_COLOR_UYVY)
6144 + width = width >> 1;
6145 + case 5:
6146 + case 7:
6147 + *offset1 = 0;
6148 + if (field_offset)
6149 + *offset0 = field_offset * screen_width * ps;
6150 + else
6151 + *offset0 = 0;
6152 + *row_inc = pixinc(1 - (screen_width + width) -
6153 + (fieldmode ? screen_width : 0),
6154 + ps);
6155 + *pix_inc = pixinc(1, ps);
6156 + break;
6157 +
6158 + default:
6159 + BUG();
6160 + }
6161 +}
6162 +
6163 +static void calc_dma_rotation_offset(u8 rotation, bool mirror,
6164 + u16 screen_width,
6165 + u16 width, u16 height,
6166 + enum omap_color_mode color_mode, bool fieldmode,
6167 + unsigned int field_offset,
6168 + unsigned *offset0, unsigned *offset1,
6169 + s32 *row_inc, s32 *pix_inc)
6170 +{
6171 + u8 ps;
6172 + u16 fbw, fbh;
6173 +
6174 + switch (color_mode) {
6175 + case OMAP_DSS_COLOR_RGB16:
6176 + case OMAP_DSS_COLOR_ARGB16:
6177 + ps = 2;
6178 + break;
6179 +
6180 + case OMAP_DSS_COLOR_RGB24P:
6181 + ps = 3;
6182 + break;
6183 +
6184 + case OMAP_DSS_COLOR_RGB24U:
6185 + case OMAP_DSS_COLOR_ARGB32:
6186 + case OMAP_DSS_COLOR_RGBA32:
6187 + case OMAP_DSS_COLOR_RGBX32:
6188 + ps = 4;
6189 + break;
6190 +
6191 + case OMAP_DSS_COLOR_YUV2:
6192 + case OMAP_DSS_COLOR_UYVY:
6193 + ps = 2;
6194 + break;
6195 + default:
6196 + BUG();
6197 + return;
6198 + }
6199 +
6200 + DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
6201 + width, height);
6202 +
6203 + /* width & height are overlay sizes, convert to fb sizes */
6204 +
6205 + if (rotation == 0 || rotation == 2) {
6206 + fbw = width;
6207 + fbh = height;
6208 + } else {
6209 + fbw = height;
6210 + fbh = width;
6211 + }
6212 +
6213 + /*
6214 + * field 0 = even field = bottom field
6215 + * field 1 = odd field = top field
6216 + */
6217 + switch (rotation + mirror * 4) {
6218 + case 0:
6219 + *offset1 = 0;
6220 + if (field_offset)
6221 + *offset0 = *offset1 + field_offset * screen_width * ps;
6222 + else
6223 + *offset0 = *offset1;
6224 + *row_inc = pixinc(1 + (screen_width - fbw) +
6225 + (fieldmode ? screen_width : 0),
6226 + ps);
6227 + *pix_inc = pixinc(1, ps);
6228 + break;
6229 + case 1:
6230 + *offset1 = screen_width * (fbh - 1) * ps;
6231 + if (field_offset)
6232 + *offset0 = *offset1 + field_offset * ps;
6233 + else
6234 + *offset0 = *offset1;
6235 + *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
6236 + (fieldmode ? 1 : 0), ps);
6237 + *pix_inc = pixinc(-screen_width, ps);
6238 + break;
6239 + case 2:
6240 + *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
6241 + if (field_offset)
6242 + *offset0 = *offset1 - field_offset * screen_width * ps;
6243 + else
6244 + *offset0 = *offset1;
6245 + *row_inc = pixinc(-1 -
6246 + (screen_width - fbw) -
6247 + (fieldmode ? screen_width : 0),
6248 + ps);
6249 + *pix_inc = pixinc(-1, ps);
6250 + break;
6251 + case 3:
6252 + *offset1 = (fbw - 1) * ps;
6253 + if (field_offset)
6254 + *offset0 = *offset1 - field_offset * ps;
6255 + else
6256 + *offset0 = *offset1;
6257 + *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
6258 + (fieldmode ? 1 : 0), ps);
6259 + *pix_inc = pixinc(screen_width, ps);
6260 + break;
6261 +
6262 + /* mirroring */
6263 + case 0 + 4:
6264 + *offset1 = (fbw - 1) * ps;
6265 + if (field_offset)
6266 + *offset0 = *offset1 + field_offset * screen_width * ps;
6267 + else
6268 + *offset0 = *offset1;
6269 + *row_inc = pixinc(screen_width * 2 - 1 +
6270 + (fieldmode ? screen_width : 0),
6271 + ps);
6272 + *pix_inc = pixinc(-1, ps);
6273 + break;
6274 +
6275 + case 1 + 4:
6276 + *offset1 = 0;
6277 + if (field_offset)
6278 + *offset0 = *offset1 + field_offset * ps;
6279 + else
6280 + *offset0 = *offset1;
6281 + *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
6282 + (fieldmode ? 1 : 0),
6283 + ps);
6284 + *pix_inc = pixinc(screen_width, ps);
6285 + break;
6286 +
6287 + case 2 + 4:
6288 + *offset1 = screen_width * (fbh - 1) * ps;
6289 + if (field_offset)
6290 + *offset0 = *offset1 - field_offset * screen_width * ps;
6291 + else
6292 + *offset0 = *offset1;
6293 + *row_inc = pixinc(1 - screen_width * 2 -
6294 + (fieldmode ? screen_width : 0),
6295 + ps);
6296 + *pix_inc = pixinc(1, ps);
6297 + break;
6298 +
6299 + case 3 + 4:
6300 + *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
6301 + if (field_offset)
6302 + *offset0 = *offset1 - field_offset * ps;
6303 + else
6304 + *offset0 = *offset1;
6305 + *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
6306 + (fieldmode ? 1 : 0),
6307 + ps);
6308 + *pix_inc = pixinc(-screen_width, ps);
6309 + break;
6310 +
6311 + default:
6312 + BUG();
6313 + }
6314 +}
6315 +
6316 +static unsigned long calc_fclk_five_taps(u16 width, u16 height,
6317 + u16 out_width, u16 out_height, enum omap_color_mode color_mode)
6318 +{
6319 + u32 fclk = 0;
6320 + /* FIXME venc pclk? */
6321 + u64 tmp, pclk = dispc_pclk_rate();
6322 +
6323 + if (height > out_height) {
6324 + /* FIXME get real display PPL */
6325 + unsigned int ppl = 800;
6326 +
6327 + tmp = pclk * height * out_width;
6328 + do_div(tmp, 2 * out_height * ppl);
6329 + fclk = tmp;
6330 +
6331 + if (height > 2 * out_height && ppl != out_width) {
6332 + tmp = pclk * (height - 2 * out_height) * out_width;
6333 + do_div(tmp, 2 * out_height * (ppl - out_width));
6334 + fclk = max(fclk, (u32) tmp);
6335 + }
6336 + }
6337 +
6338 + if (width > out_width) {
6339 + tmp = pclk * width;
6340 + do_div(tmp, out_width);
6341 + fclk = max(fclk, (u32) tmp);
6342 +
6343 + if (color_mode == OMAP_DSS_COLOR_RGB24U)
6344 + fclk <<= 1;
6345 + }
6346 +
6347 + return fclk;
6348 +}
6349 +
6350 +static unsigned long calc_fclk(u16 width, u16 height,
6351 + u16 out_width, u16 out_height)
6352 +{
6353 + unsigned int hf, vf;
6354 +
6355 + /*
6356 + * FIXME how to determine the 'A' factor
6357 + * for the no downscaling case ?
6358 + */
6359 +
6360 + if (width > 3 * out_width)
6361 + hf = 4;
6362 + else if (width > 2 * out_width)
6363 + hf = 3;
6364 + else if (width > out_width)
6365 + hf = 2;
6366 + else
6367 + hf = 1;
6368 +
6369 + if (height > out_height)
6370 + vf = 2;
6371 + else
6372 + vf = 1;
6373 +
6374 + /* FIXME venc pclk? */
6375 + return dispc_pclk_rate() * vf * hf;
6376 +}
6377 +
6378 +void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
6379 +{
6380 + enable_clocks(1);
6381 + _dispc_set_channel_out(plane, channel_out);
6382 + enable_clocks(0);
6383 +}
6384 +
6385 +static int _dispc_setup_plane(enum omap_plane plane,
6386 + u32 paddr, u16 screen_width,
6387 + u16 pos_x, u16 pos_y,
6388 + u16 width, u16 height,
6389 + u16 out_width, u16 out_height,
6390 + enum omap_color_mode color_mode,
6391 + bool ilace,
6392 + enum omap_dss_rotation_type rotation_type,
6393 + u8 rotation, int mirror,
6394 + u8 global_alpha)
6395 +{
6396 + const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
6397 + bool five_taps = 0;
6398 + bool fieldmode = 0;
6399 + int cconv = 0;
6400 + unsigned offset0, offset1;
6401 + s32 row_inc;
6402 + s32 pix_inc;
6403 + u16 frame_height = height;
6404 + unsigned int field_offset = 0;
6405 +
6406 + if (paddr == 0)
6407 + return -EINVAL;
6408 +
6409 + if (ilace && height == out_height)
6410 + fieldmode = 1;
6411 +
6412 + if (ilace) {
6413 + if (fieldmode)
6414 + height /= 2;
6415 + pos_y /= 2;
6416 + out_height /= 2;
6417 +
6418 + DSSDBG("adjusting for ilace: height %d, pos_y %d, "
6419 + "out_height %d\n",
6420 + height, pos_y, out_height);
6421 + }
6422 +
6423 + if (plane == OMAP_DSS_GFX) {
6424 + if (width != out_width || height != out_height)
6425 + return -EINVAL;
6426 +
6427 + switch (color_mode) {
6428 + case OMAP_DSS_COLOR_ARGB16:
6429 + case OMAP_DSS_COLOR_RGB16:
6430 + case OMAP_DSS_COLOR_RGB24P:
6431 + case OMAP_DSS_COLOR_RGB24U:
6432 + case OMAP_DSS_COLOR_ARGB32:
6433 + case OMAP_DSS_COLOR_RGBA32:
6434 + case OMAP_DSS_COLOR_RGBX32:
6435 + break;
6436 +
6437 + default:
6438 + return -EINVAL;
6439 + }
6440 + } else {
6441 + /* video plane */
6442 +
6443 + unsigned long fclk = 0;
6444 +
6445 + if (out_width < width / maxdownscale ||
6446 + out_width > width * 8)
6447 + return -EINVAL;
6448 +
6449 + if (out_height < height / maxdownscale ||
6450 + out_height > height * 8)
6451 + return -EINVAL;
6452 +
6453 + switch (color_mode) {
6454 + case OMAP_DSS_COLOR_RGB16:
6455 + case OMAP_DSS_COLOR_RGB24P:
6456 + case OMAP_DSS_COLOR_RGB24U:
6457 + case OMAP_DSS_COLOR_RGBX32:
6458 + break;
6459 +
6460 + case OMAP_DSS_COLOR_ARGB16:
6461 + case OMAP_DSS_COLOR_ARGB32:
6462 + case OMAP_DSS_COLOR_RGBA32:
6463 + if (plane == OMAP_DSS_VIDEO1)
6464 + return -EINVAL;
6465 + break;
6466 +
6467 + case OMAP_DSS_COLOR_YUV2:
6468 + case OMAP_DSS_COLOR_UYVY:
6469 + cconv = 1;
6470 + break;
6471 +
6472 + default:
6473 + return -EINVAL;
6474 + }
6475 +
6476 + /* Must use 5-tap filter? */
6477 + five_taps = height > out_height * 2;
6478 +
6479 + if (!five_taps) {
6480 + fclk = calc_fclk(width, height,
6481 + out_width, out_height);
6482 +
6483 + /* Try 5-tap filter if 3-tap fclk is too high */
6484 + if (cpu_is_omap34xx() && height > out_height &&
6485 + fclk > dispc_fclk_rate())
6486 + five_taps = true;
6487 + }
6488 +
6489 + if (width > (2048 >> five_taps))
6490 + return -EINVAL;
6491 +
6492 + if (five_taps)
6493 + fclk = calc_fclk_five_taps(width, height,
6494 + out_width, out_height, color_mode);
6495 +
6496 + DSSDBG("required fclk rate = %lu Hz\n", fclk);
6497 + DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
6498 +
6499 + if (fclk > dispc_fclk_rate()) {
6500 + DSSERR("failed to set up scaling, "
6501 + "required fclk rate = %lu Hz, "
6502 + "current fclk rate = %lu Hz\n",
6503 + fclk, dispc_fclk_rate());
6504 + return -EINVAL;
6505 + }
6506 + }
6507 +
6508 + if (ilace && !fieldmode) {
6509 + /*
6510 + * when downscaling the bottom field may have to start several
6511 + * source lines below the top field. Unfortunately ACCUI
6512 + * registers will only hold the fractional part of the offset
6513 + * so the integer part must be added to the base address of the
6514 + * bottom field.
6515 + */
6516 + if (!height || height == out_height)
6517 + field_offset = 0;
6518 + else
6519 + field_offset = height / out_height / 2;
6520 + }
6521 +
6522 + /* Fields are independent but interleaved in memory. */
6523 + if (fieldmode)
6524 + field_offset = 1;
6525 +
6526 + if (rotation_type == OMAP_DSS_ROT_DMA)
6527 + calc_dma_rotation_offset(rotation, mirror,
6528 + screen_width, width, frame_height, color_mode,
6529 + fieldmode, field_offset,
6530 + &offset0, &offset1, &row_inc, &pix_inc);
6531 + else
6532 + calc_vrfb_rotation_offset(rotation, mirror,
6533 + screen_width, width, frame_height, color_mode,
6534 + fieldmode, field_offset,
6535 + &offset0, &offset1, &row_inc, &pix_inc);
6536 +
6537 + DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
6538 + offset0, offset1, row_inc, pix_inc);
6539 +
6540 + _dispc_set_color_mode(plane, color_mode);
6541 +
6542 + _dispc_set_plane_ba0(plane, paddr + offset0);
6543 + _dispc_set_plane_ba1(plane, paddr + offset1);
6544 +
6545 + _dispc_set_row_inc(plane, row_inc);
6546 + _dispc_set_pix_inc(plane, pix_inc);
6547 +
6548 + DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
6549 + out_width, out_height);
6550 +
6551 + _dispc_set_plane_pos(plane, pos_x, pos_y);
6552 +
6553 + _dispc_set_pic_size(plane, width, height);
6554 +
6555 + if (plane != OMAP_DSS_GFX) {
6556 + _dispc_set_scaling(plane, width, height,
6557 + out_width, out_height,
6558 + ilace, five_taps, fieldmode);
6559 + _dispc_set_vid_size(plane, out_width, out_height);
6560 + _dispc_set_vid_color_conv(plane, cconv);
6561 + }
6562 +
6563 + _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
6564 +
6565 + if (plane != OMAP_DSS_VIDEO1)
6566 + _dispc_setup_global_alpha(plane, global_alpha);
6567 +
6568 + return 0;
6569 +}
6570 +
6571 +static void _dispc_enable_plane(enum omap_plane plane, bool enable)
6572 +{
6573 + REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
6574 +}
6575 +
6576 +static void dispc_disable_isr(void *data, u32 mask)
6577 +{
6578 + struct completion *compl = data;
6579 + complete(compl);
6580 +}
6581 +
6582 +static void _enable_lcd_out(bool enable)
6583 +{
6584 + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
6585 +}
6586 +
6587 +void dispc_enable_lcd_out(bool enable)
6588 +{
6589 + struct completion frame_done_completion;
6590 + bool is_on;
6591 + int r;
6592 +
6593 + enable_clocks(1);
6594 +
6595 + /* When we disable LCD output, we need to wait until frame is done.
6596 + * Otherwise the DSS is still working, and turning off the clocks
6597 + * prevents DSS from going to OFF mode */
6598 + is_on = REG_GET(DISPC_CONTROL, 0, 0);
6599 +
6600 + if (!enable && is_on) {
6601 + init_completion(&frame_done_completion);
6602 +
6603 + r = omap_dispc_register_isr(dispc_disable_isr,
6604 + &frame_done_completion,
6605 + DISPC_IRQ_FRAMEDONE);
6606 +
6607 + if (r)
6608 + DSSERR("failed to register FRAMEDONE isr\n");
6609 + }
6610 +
6611 + _enable_lcd_out(enable);
6612 +
6613 + if (!enable && is_on) {
6614 + if (!wait_for_completion_timeout(&frame_done_completion,
6615 + msecs_to_jiffies(100)))
6616 + DSSERR("timeout waiting for FRAME DONE\n");
6617 +
6618 + r = omap_dispc_unregister_isr(dispc_disable_isr,
6619 + &frame_done_completion,
6620 + DISPC_IRQ_FRAMEDONE);
6621 +
6622 + if (r)
6623 + DSSERR("failed to unregister FRAMEDONE isr\n");
6624 + }
6625 +
6626 + enable_clocks(0);
6627 +}
6628 +
6629 +static void _enable_digit_out(bool enable)
6630 +{
6631 + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
6632 +}
6633 +
6634 +void dispc_enable_digit_out(bool enable)
6635 +{
6636 + struct completion frame_done_completion;
6637 + int r;
6638 +
6639 + enable_clocks(1);
6640 +
6641 + if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
6642 + enable_clocks(0);
6643 + return;
6644 + }
6645 +
6646 + if (enable) {
6647 + unsigned long flags;
6648 + /* When we enable digit output, we'll get an extra digit
6649 + * sync lost interrupt, that we need to ignore */
6650 + spin_lock_irqsave(&dispc.irq_lock, flags);
6651 + dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
6652 + _omap_dispc_set_irqs();
6653 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
6654 + }
6655 +
6656 + /* When we disable digit output, we need to wait until fields are done.
6657 + * Otherwise the DSS is still working, and turning off the clocks
6658 + * prevents DSS from going to OFF mode. And when enabling, we need to
6659 + * wait for the extra sync losts */
6660 + init_completion(&frame_done_completion);
6661 +
6662 + r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
6663 + DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
6664 + if (r)
6665 + DSSERR("failed to register EVSYNC isr\n");
6666 +
6667 + _enable_digit_out(enable);
6668 +
6669 + /* XXX I understand from TRM that we should only wait for the
6670 + * current field to complete. But it seems we have to wait
6671 + * for both fields */
6672 + if (!wait_for_completion_timeout(&frame_done_completion,
6673 + msecs_to_jiffies(100)))
6674 + DSSERR("timeout waiting for EVSYNC\n");
6675 +
6676 + if (!wait_for_completion_timeout(&frame_done_completion,
6677 + msecs_to_jiffies(100)))
6678 + DSSERR("timeout waiting for EVSYNC\n");
6679 +
6680 + r = omap_dispc_unregister_isr(dispc_disable_isr,
6681 + &frame_done_completion,
6682 + DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
6683 + if (r)
6684 + DSSERR("failed to unregister EVSYNC isr\n");
6685 +
6686 + if (enable) {
6687 + unsigned long flags;
6688 + spin_lock_irqsave(&dispc.irq_lock, flags);
6689 + dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
6690 + dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
6691 + _omap_dispc_set_irqs();
6692 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
6693 + }
6694 +
6695 + enable_clocks(0);
6696 +}
6697 +
6698 +void dispc_lcd_enable_signal_polarity(bool act_high)
6699 +{
6700 + enable_clocks(1);
6701 + REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
6702 + enable_clocks(0);
6703 +}
6704 +
6705 +void dispc_lcd_enable_signal(bool enable)
6706 +{
6707 + enable_clocks(1);
6708 + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
6709 + enable_clocks(0);
6710 +}
6711 +
6712 +void dispc_pck_free_enable(bool enable)
6713 +{
6714 + enable_clocks(1);
6715 + REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
6716 + enable_clocks(0);
6717 +}
6718 +
6719 +void dispc_enable_fifohandcheck(bool enable)
6720 +{
6721 + enable_clocks(1);
6722 + REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
6723 + enable_clocks(0);
6724 +}
6725 +
6726 +
6727 +void dispc_set_lcd_display_type(enum omap_lcd_display_type type)
6728 +{
6729 + int mode;
6730 +
6731 + switch (type) {
6732 + case OMAP_DSS_LCD_DISPLAY_STN:
6733 + mode = 0;
6734 + break;
6735 +
6736 + case OMAP_DSS_LCD_DISPLAY_TFT:
6737 + mode = 1;
6738 + break;
6739 +
6740 + default:
6741 + BUG();
6742 + return;
6743 + }
6744 +
6745 + enable_clocks(1);
6746 + REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
6747 + enable_clocks(0);
6748 +}
6749 +
6750 +void dispc_set_loadmode(enum omap_dss_load_mode mode)
6751 +{
6752 + enable_clocks(1);
6753 + REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
6754 + enable_clocks(0);
6755 +}
6756 +
6757 +
6758 +void dispc_set_default_color(enum omap_channel channel, u32 color)
6759 +{
6760 + const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
6761 + DISPC_DEFAULT_COLOR1 };
6762 +
6763 + enable_clocks(1);
6764 + dispc_write_reg(def_reg[channel], color);
6765 + enable_clocks(0);
6766 +}
6767 +
6768 +u32 dispc_get_default_color(enum omap_channel channel)
6769 +{
6770 + const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
6771 + DISPC_DEFAULT_COLOR1 };
6772 + u32 l;
6773 +
6774 + BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
6775 + channel != OMAP_DSS_CHANNEL_LCD);
6776 +
6777 + enable_clocks(1);
6778 + l = dispc_read_reg(def_reg[channel]);
6779 + enable_clocks(0);
6780 +
6781 + return l;
6782 +}
6783 +
6784 +void dispc_set_trans_key(enum omap_channel ch,
6785 + enum omap_dss_trans_key_type type,
6786 + u32 trans_key)
6787 +{
6788 + const struct dispc_reg tr_reg[] = {
6789 + DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
6790 +
6791 + enable_clocks(1);
6792 + if (ch == OMAP_DSS_CHANNEL_LCD)
6793 + REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
6794 + else /* OMAP_DSS_CHANNEL_DIGIT */
6795 + REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
6796 +
6797 + dispc_write_reg(tr_reg[ch], trans_key);
6798 + enable_clocks(0);
6799 +}
6800 +
6801 +void dispc_get_trans_key(enum omap_channel ch,
6802 + enum omap_dss_trans_key_type *type,
6803 + u32 *trans_key)
6804 +{
6805 + const struct dispc_reg tr_reg[] = {
6806 + DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
6807 +
6808 + enable_clocks(1);
6809 + if (type) {
6810 + if (ch == OMAP_DSS_CHANNEL_LCD)
6811 + *type = REG_GET(DISPC_CONFIG, 11, 11);
6812 + else if (ch == OMAP_DSS_CHANNEL_DIGIT)
6813 + *type = REG_GET(DISPC_CONFIG, 13, 13);
6814 + else
6815 + BUG();
6816 + }
6817 +
6818 + if (trans_key)
6819 + *trans_key = dispc_read_reg(tr_reg[ch]);
6820 + enable_clocks(0);
6821 +}
6822 +
6823 +void dispc_enable_trans_key(enum omap_channel ch, bool enable)
6824 +{
6825 + enable_clocks(1);
6826 + if (ch == OMAP_DSS_CHANNEL_LCD)
6827 + REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
6828 + else /* OMAP_DSS_CHANNEL_DIGIT */
6829 + REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
6830 + enable_clocks(0);
6831 +}
6832 +void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
6833 +{
6834 + enable_clocks(1);
6835 + if (ch == OMAP_DSS_CHANNEL_LCD)
6836 + REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
6837 + else /* OMAP_DSS_CHANNEL_DIGIT */
6838 + REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
6839 + enable_clocks(0);
6840 +}
6841 +bool dispc_alpha_blending_enabled(enum omap_channel ch)
6842 +{
6843 + bool enabled;
6844 +
6845 + enable_clocks(1);
6846 + if (ch == OMAP_DSS_CHANNEL_LCD)
6847 + enabled = REG_GET(DISPC_CONFIG, 18, 18);
6848 + else if (ch == OMAP_DSS_CHANNEL_DIGIT)
6849 + enabled = REG_GET(DISPC_CONFIG, 18, 18);
6850 + else
6851 + BUG();
6852 + enable_clocks(0);
6853 +
6854 + return enabled;
6855 +
6856 +}
6857 +
6858 +
6859 +bool dispc_trans_key_enabled(enum omap_channel ch)
6860 +{
6861 + bool enabled;
6862 +
6863 + enable_clocks(1);
6864 + if (ch == OMAP_DSS_CHANNEL_LCD)
6865 + enabled = REG_GET(DISPC_CONFIG, 10, 10);
6866 + else if (ch == OMAP_DSS_CHANNEL_DIGIT)
6867 + enabled = REG_GET(DISPC_CONFIG, 12, 12);
6868 + else
6869 + BUG();
6870 + enable_clocks(0);
6871 +
6872 + return enabled;
6873 +}
6874 +
6875 +
6876 +void dispc_set_tft_data_lines(u8 data_lines)
6877 +{
6878 + int code;
6879 +
6880 + switch (data_lines) {
6881 + case 12:
6882 + code = 0;
6883 + break;
6884 + case 16:
6885 + code = 1;
6886 + break;
6887 + case 18:
6888 + code = 2;
6889 + break;
6890 + case 24:
6891 + code = 3;
6892 + break;
6893 + default:
6894 + BUG();
6895 + return;
6896 + }
6897 +
6898 + enable_clocks(1);
6899 + REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
6900 + enable_clocks(0);
6901 +}
6902 +
6903 +void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode)
6904 +{
6905 + u32 l;
6906 + int stallmode;
6907 + int gpout0 = 1;
6908 + int gpout1;
6909 +
6910 + switch (mode) {
6911 + case OMAP_DSS_PARALLELMODE_BYPASS:
6912 + stallmode = 0;
6913 + gpout1 = 1;
6914 + break;
6915 +
6916 + case OMAP_DSS_PARALLELMODE_RFBI:
6917 + stallmode = 1;
6918 + gpout1 = 0;
6919 + break;
6920 +
6921 + case OMAP_DSS_PARALLELMODE_DSI:
6922 + stallmode = 1;
6923 + gpout1 = 1;
6924 + break;
6925 +
6926 + default:
6927 + BUG();
6928 + return;
6929 + }
6930 +
6931 + enable_clocks(1);
6932 +
6933 + l = dispc_read_reg(DISPC_CONTROL);
6934 +
6935 + l = FLD_MOD(l, stallmode, 11, 11);
6936 + l = FLD_MOD(l, gpout0, 15, 15);
6937 + l = FLD_MOD(l, gpout1, 16, 16);
6938 +
6939 + dispc_write_reg(DISPC_CONTROL, l);
6940 +
6941 + enable_clocks(0);
6942 +}
6943 +
6944 +static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
6945 + int vsw, int vfp, int vbp)
6946 +{
6947 + if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
6948 + if (hsw < 1 || hsw > 64 ||
6949 + hfp < 1 || hfp > 256 ||
6950 + hbp < 1 || hbp > 256 ||
6951 + vsw < 1 || vsw > 64 ||
6952 + vfp < 0 || vfp > 255 ||
6953 + vbp < 0 || vbp > 255)
6954 + return false;
6955 + } else {
6956 + if (hsw < 1 || hsw > 256 ||
6957 + hfp < 1 || hfp > 4096 ||
6958 + hbp < 1 || hbp > 4096 ||
6959 + vsw < 1 || vsw > 256 ||
6960 + vfp < 0 || vfp > 4095 ||
6961 + vbp < 0 || vbp > 4095)
6962 + return false;
6963 + }
6964 +
6965 + return true;
6966 +}
6967 +
6968 +bool dispc_lcd_timings_ok(struct omap_video_timings *timings)
6969 +{
6970 + return _dispc_lcd_timings_ok(timings->hsw, timings->hfp,
6971 + timings->hbp, timings->vsw,
6972 + timings->vfp, timings->vbp);
6973 +}
6974 +
6975 +static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp,
6976 + int vsw, int vfp, int vbp)
6977 +{
6978 + u32 timing_h, timing_v;
6979 +
6980 + if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
6981 + timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
6982 + FLD_VAL(hbp-1, 27, 20);
6983 +
6984 + timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
6985 + FLD_VAL(vbp, 27, 20);
6986 + } else {
6987 + timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
6988 + FLD_VAL(hbp-1, 31, 20);
6989 +
6990 + timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
6991 + FLD_VAL(vbp, 31, 20);
6992 + }
6993 +
6994 + enable_clocks(1);
6995 + dispc_write_reg(DISPC_TIMING_H, timing_h);
6996 + dispc_write_reg(DISPC_TIMING_V, timing_v);
6997 + enable_clocks(0);
6998 +}
6999 +
7000 +/* change name to mode? */
7001 +void dispc_set_lcd_timings(struct omap_video_timings *timings)
7002 +{
7003 + unsigned xtot, ytot;
7004 + unsigned long ht, vt;
7005 +
7006 + if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
7007 + timings->hbp, timings->vsw,
7008 + timings->vfp, timings->vbp))
7009 + BUG();
7010 +
7011 + _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp,
7012 + timings->vsw, timings->vfp, timings->vbp);
7013 +
7014 + dispc_set_lcd_size(timings->x_res, timings->y_res);
7015 +
7016 + xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
7017 + ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
7018 +
7019 + ht = (timings->pixel_clock * 1000) / xtot;
7020 + vt = (timings->pixel_clock * 1000) / xtot / ytot;
7021 +
7022 + DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res);
7023 + DSSDBG("pck %u\n", timings->pixel_clock);
7024 + DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
7025 + timings->hsw, timings->hfp, timings->hbp,
7026 + timings->vsw, timings->vfp, timings->vbp);
7027 +
7028 + DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
7029 +}
7030 +
7031 +void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
7032 +{
7033 + BUG_ON(lck_div < 1);
7034 + BUG_ON(pck_div < 2);
7035 +
7036 + enable_clocks(1);
7037 + dispc_write_reg(DISPC_DIVISOR,
7038 + FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
7039 + enable_clocks(0);
7040 +}
7041 +
7042 +static void dispc_get_lcd_divisor(int *lck_div, int *pck_div)
7043 +{
7044 + u32 l;
7045 + l = dispc_read_reg(DISPC_DIVISOR);
7046 + *lck_div = FLD_GET(l, 23, 16);
7047 + *pck_div = FLD_GET(l, 7, 0);
7048 +}
7049 +
7050 +unsigned long dispc_fclk_rate(void)
7051 +{
7052 + unsigned long r = 0;
7053 +
7054 + if (dss_get_dispc_clk_source() == 0)
7055 + r = dss_clk_get_rate(DSS_CLK_FCK1);
7056 + else
7057 +#ifdef CONFIG_OMAP2_DSS_DSI
7058 + r = dsi_get_dsi1_pll_rate();
7059 +#else
7060 + BUG();
7061 +#endif
7062 + return r;
7063 +}
7064 +
7065 +unsigned long dispc_lclk_rate(void)
7066 +{
7067 + int lcd;
7068 + unsigned long r;
7069 + u32 l;
7070 +
7071 + l = dispc_read_reg(DISPC_DIVISOR);
7072 +
7073 + lcd = FLD_GET(l, 23, 16);
7074 +
7075 + r = dispc_fclk_rate();
7076 +
7077 + return r / lcd;
7078 +}
7079 +
7080 +unsigned long dispc_pclk_rate(void)
7081 +{
7082 + int lcd, pcd;
7083 + unsigned long r;
7084 + u32 l;
7085 +
7086 + l = dispc_read_reg(DISPC_DIVISOR);
7087 +
7088 + lcd = FLD_GET(l, 23, 16);
7089 + pcd = FLD_GET(l, 7, 0);
7090 +
7091 + r = dispc_fclk_rate();
7092 +
7093 + return r / lcd / pcd;
7094 +}
7095 +
7096 +void dispc_dump_clocks(struct seq_file *s)
7097 +{
7098 + int lcd, pcd;
7099 +
7100 + enable_clocks(1);
7101 +
7102 + dispc_get_lcd_divisor(&lcd, &pcd);
7103 +
7104 + seq_printf(s, "- dispc -\n");
7105 +
7106 + seq_printf(s, "dispc fclk source = %s\n",
7107 + dss_get_dispc_clk_source() == 0 ?
7108 + "dss1_alwon_fclk" : "dsi1_pll_fclk");
7109 +
7110 + seq_printf(s, "pixel clk = %lu / %d / %d = %lu\n",
7111 + dispc_fclk_rate(),
7112 + lcd, pcd,
7113 + dispc_pclk_rate());
7114 +
7115 + enable_clocks(0);
7116 +}
7117 +
7118 +void dispc_dump_regs(struct seq_file *s)
7119 +{
7120 +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
7121 +
7122 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
7123 +
7124 + DUMPREG(DISPC_REVISION);
7125 + DUMPREG(DISPC_SYSCONFIG);
7126 + DUMPREG(DISPC_SYSSTATUS);
7127 + DUMPREG(DISPC_IRQSTATUS);
7128 + DUMPREG(DISPC_IRQENABLE);
7129 + DUMPREG(DISPC_CONTROL);
7130 + DUMPREG(DISPC_CONFIG);
7131 + DUMPREG(DISPC_CAPABLE);
7132 + DUMPREG(DISPC_DEFAULT_COLOR0);
7133 + DUMPREG(DISPC_DEFAULT_COLOR1);
7134 + DUMPREG(DISPC_TRANS_COLOR0);
7135 + DUMPREG(DISPC_TRANS_COLOR1);
7136 + DUMPREG(DISPC_LINE_STATUS);
7137 + DUMPREG(DISPC_LINE_NUMBER);
7138 + DUMPREG(DISPC_TIMING_H);
7139 + DUMPREG(DISPC_TIMING_V);
7140 + DUMPREG(DISPC_POL_FREQ);
7141 + DUMPREG(DISPC_DIVISOR);
7142 + DUMPREG(DISPC_GLOBAL_ALPHA);
7143 + DUMPREG(DISPC_SIZE_DIG);
7144 + DUMPREG(DISPC_SIZE_LCD);
7145 +
7146 + DUMPREG(DISPC_GFX_BA0);
7147 + DUMPREG(DISPC_GFX_BA1);
7148 + DUMPREG(DISPC_GFX_POSITION);
7149 + DUMPREG(DISPC_GFX_SIZE);
7150 + DUMPREG(DISPC_GFX_ATTRIBUTES);
7151 + DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
7152 + DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
7153 + DUMPREG(DISPC_GFX_ROW_INC);
7154 + DUMPREG(DISPC_GFX_PIXEL_INC);
7155 + DUMPREG(DISPC_GFX_WINDOW_SKIP);
7156 + DUMPREG(DISPC_GFX_TABLE_BA);
7157 +
7158 + DUMPREG(DISPC_DATA_CYCLE1);
7159 + DUMPREG(DISPC_DATA_CYCLE2);
7160 + DUMPREG(DISPC_DATA_CYCLE3);
7161 +
7162 + DUMPREG(DISPC_CPR_COEF_R);
7163 + DUMPREG(DISPC_CPR_COEF_G);
7164 + DUMPREG(DISPC_CPR_COEF_B);
7165 +
7166 + DUMPREG(DISPC_GFX_PRELOAD);
7167 +
7168 + DUMPREG(DISPC_VID_BA0(0));
7169 + DUMPREG(DISPC_VID_BA1(0));
7170 + DUMPREG(DISPC_VID_POSITION(0));
7171 + DUMPREG(DISPC_VID_SIZE(0));
7172 + DUMPREG(DISPC_VID_ATTRIBUTES(0));
7173 + DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
7174 + DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
7175 + DUMPREG(DISPC_VID_ROW_INC(0));
7176 + DUMPREG(DISPC_VID_PIXEL_INC(0));
7177 + DUMPREG(DISPC_VID_FIR(0));
7178 + DUMPREG(DISPC_VID_PICTURE_SIZE(0));
7179 + DUMPREG(DISPC_VID_ACCU0(0));
7180 + DUMPREG(DISPC_VID_ACCU1(0));
7181 +
7182 + DUMPREG(DISPC_VID_BA0(1));
7183 + DUMPREG(DISPC_VID_BA1(1));
7184 + DUMPREG(DISPC_VID_POSITION(1));
7185 + DUMPREG(DISPC_VID_SIZE(1));
7186 + DUMPREG(DISPC_VID_ATTRIBUTES(1));
7187 + DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
7188 + DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
7189 + DUMPREG(DISPC_VID_ROW_INC(1));
7190 + DUMPREG(DISPC_VID_PIXEL_INC(1));
7191 + DUMPREG(DISPC_VID_FIR(1));
7192 + DUMPREG(DISPC_VID_PICTURE_SIZE(1));
7193 + DUMPREG(DISPC_VID_ACCU0(1));
7194 + DUMPREG(DISPC_VID_ACCU1(1));
7195 +
7196 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
7197 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
7198 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
7199 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
7200 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
7201 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
7202 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
7203 + DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
7204 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
7205 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
7206 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
7207 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
7208 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
7209 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
7210 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
7211 + DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
7212 + DUMPREG(DISPC_VID_CONV_COEF(0, 0));
7213 + DUMPREG(DISPC_VID_CONV_COEF(0, 1));
7214 + DUMPREG(DISPC_VID_CONV_COEF(0, 2));
7215 + DUMPREG(DISPC_VID_CONV_COEF(0, 3));
7216 + DUMPREG(DISPC_VID_CONV_COEF(0, 4));
7217 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
7218 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
7219 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
7220 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
7221 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
7222 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
7223 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
7224 + DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
7225 +
7226 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
7227 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
7228 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
7229 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
7230 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
7231 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
7232 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
7233 + DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
7234 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
7235 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
7236 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
7237 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
7238 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
7239 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
7240 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
7241 + DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
7242 + DUMPREG(DISPC_VID_CONV_COEF(1, 0));
7243 + DUMPREG(DISPC_VID_CONV_COEF(1, 1));
7244 + DUMPREG(DISPC_VID_CONV_COEF(1, 2));
7245 + DUMPREG(DISPC_VID_CONV_COEF(1, 3));
7246 + DUMPREG(DISPC_VID_CONV_COEF(1, 4));
7247 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
7248 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
7249 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
7250 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
7251 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
7252 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
7253 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
7254 + DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
7255 +
7256 + DUMPREG(DISPC_VID_PRELOAD(0));
7257 + DUMPREG(DISPC_VID_PRELOAD(1));
7258 +
7259 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
7260 +#undef DUMPREG
7261 +}
7262 +
7263 +static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
7264 + bool ihs, bool ivs, u8 acbi, u8 acb)
7265 +{
7266 + u32 l = 0;
7267 +
7268 + DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
7269 + onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
7270 +
7271 + l |= FLD_VAL(onoff, 17, 17);
7272 + l |= FLD_VAL(rf, 16, 16);
7273 + l |= FLD_VAL(ieo, 15, 15);
7274 + l |= FLD_VAL(ipc, 14, 14);
7275 + l |= FLD_VAL(ihs, 13, 13);
7276 + l |= FLD_VAL(ivs, 12, 12);
7277 + l |= FLD_VAL(acbi, 11, 8);
7278 + l |= FLD_VAL(acb, 7, 0);
7279 +
7280 + enable_clocks(1);
7281 + dispc_write_reg(DISPC_POL_FREQ, l);
7282 + enable_clocks(0);
7283 +}
7284 +
7285 +void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb)
7286 +{
7287 + _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0,
7288 + (config & OMAP_DSS_LCD_RF) != 0,
7289 + (config & OMAP_DSS_LCD_IEO) != 0,
7290 + (config & OMAP_DSS_LCD_IPC) != 0,
7291 + (config & OMAP_DSS_LCD_IHS) != 0,
7292 + (config & OMAP_DSS_LCD_IVS) != 0,
7293 + acbi, acb);
7294 +}
7295 +
7296 +void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
7297 + u16 *lck_div, u16 *pck_div)
7298 +{
7299 + u16 pcd_min = is_tft ? 2 : 3;
7300 + unsigned long best_pck;
7301 + u16 best_ld, cur_ld;
7302 + u16 best_pd, cur_pd;
7303 +
7304 + best_pck = 0;
7305 + best_ld = 0;
7306 + best_pd = 0;
7307 +
7308 + for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
7309 + unsigned long lck = fck / cur_ld;
7310 +
7311 + for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
7312 + unsigned long pck = lck / cur_pd;
7313 + long old_delta = abs(best_pck - req_pck);
7314 + long new_delta = abs(pck - req_pck);
7315 +
7316 + if (best_pck == 0 || new_delta < old_delta) {
7317 + best_pck = pck;
7318 + best_ld = cur_ld;
7319 + best_pd = cur_pd;
7320 +
7321 + if (pck == req_pck)
7322 + goto found;
7323 + }
7324 +
7325 + if (pck < req_pck)
7326 + break;
7327 + }
7328 +
7329 + if (lck / pcd_min < req_pck)
7330 + break;
7331 + }
7332 +
7333 +found:
7334 + *lck_div = best_ld;
7335 + *pck_div = best_pd;
7336 +}
7337 +
7338 +int dispc_calc_clock_div(bool is_tft, unsigned long req_pck,
7339 + struct dispc_clock_info *cinfo)
7340 +{
7341 + unsigned long prate;
7342 + struct dispc_clock_info cur, best;
7343 + int match = 0;
7344 + int min_fck_per_pck;
7345 + unsigned long fck_rate = dss_clk_get_rate(DSS_CLK_FCK1);
7346 +
7347 + if (cpu_is_omap34xx())
7348 + prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
7349 + else
7350 + prate = 0;
7351 +
7352 + if (req_pck == dispc.cache_req_pck &&
7353 + ((cpu_is_omap34xx() && prate == dispc.cache_prate) ||
7354 + dispc.cache_cinfo.fck == fck_rate)) {
7355 + DSSDBG("dispc clock info found from cache.\n");
7356 + *cinfo = dispc.cache_cinfo;
7357 + return 0;
7358 + }
7359 +
7360 + min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
7361 +
7362 + if (min_fck_per_pck &&
7363 + req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
7364 + DSSERR("Requested pixel clock not possible with the current "
7365 + "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
7366 + "the constraint off.\n");
7367 + min_fck_per_pck = 0;
7368 + }
7369 +
7370 +retry:
7371 + memset(&cur, 0, sizeof(cur));
7372 + memset(&best, 0, sizeof(best));
7373 +
7374 + if (cpu_is_omap24xx()) {
7375 + /* XXX can we change the clock on omap2? */
7376 + cur.fck = dss_clk_get_rate(DSS_CLK_FCK1);
7377 + cur.fck_div = 1;
7378 +
7379 + match = 1;
7380 +
7381 + find_lck_pck_divs(is_tft, req_pck, cur.fck,
7382 + &cur.lck_div, &cur.pck_div);
7383 +
7384 + cur.lck = cur.fck / cur.lck_div;
7385 + cur.pck = cur.lck / cur.pck_div;
7386 +
7387 + best = cur;
7388 +
7389 + goto found;
7390 + } else if (cpu_is_omap34xx()) {
7391 + for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) {
7392 + cur.fck = prate / cur.fck_div * 2;
7393 +
7394 + if (cur.fck > DISPC_MAX_FCK)
7395 + continue;
7396 +
7397 + if (min_fck_per_pck &&
7398 + cur.fck < req_pck * min_fck_per_pck)
7399 + continue;
7400 +
7401 + match = 1;
7402 +
7403 + find_lck_pck_divs(is_tft, req_pck, cur.fck,
7404 + &cur.lck_div, &cur.pck_div);
7405 +
7406 + cur.lck = cur.fck / cur.lck_div;
7407 + cur.pck = cur.lck / cur.pck_div;
7408 +
7409 + if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) {
7410 + best = cur;
7411 +
7412 + if (cur.pck == req_pck)
7413 + goto found;
7414 + }
7415 + }
7416 + } else {
7417 + BUG();
7418 + }
7419 +
7420 +found:
7421 + if (!match) {
7422 + if (min_fck_per_pck) {
7423 + DSSERR("Could not find suitable clock settings.\n"
7424 + "Turning FCK/PCK constraint off and"
7425 + "trying again.\n");
7426 + min_fck_per_pck = 0;
7427 + goto retry;
7428 + }
7429 +
7430 + DSSERR("Could not find suitable clock settings.\n");
7431 +
7432 + return -EINVAL;
7433 + }
7434 +
7435 + if (cinfo)
7436 + *cinfo = best;
7437 +
7438 + dispc.cache_req_pck = req_pck;
7439 + dispc.cache_prate = prate;
7440 + dispc.cache_cinfo = best;
7441 +
7442 + return 0;
7443 +}
7444 +
7445 +int dispc_set_clock_div(struct dispc_clock_info *cinfo)
7446 +{
7447 + unsigned long prate;
7448 + int r;
7449 +
7450 + if (cpu_is_omap34xx()) {
7451 + prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
7452 + DSSDBG("dpll4_m4 = %ld\n", prate);
7453 + }
7454 +
7455 + DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div);
7456 + DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div);
7457 + DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div);
7458 +
7459 + if (cpu_is_omap34xx()) {
7460 + r = clk_set_rate(dispc.dpll4_m4_ck, prate / cinfo->fck_div);
7461 + if (r)
7462 + return r;
7463 + }
7464 +
7465 + dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
7466 +
7467 + return 0;
7468 +}
7469 +
7470 +int dispc_get_clock_div(struct dispc_clock_info *cinfo)
7471 +{
7472 + cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1);
7473 +
7474 + if (cpu_is_omap34xx()) {
7475 + unsigned long prate;
7476 + prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
7477 + cinfo->fck_div = prate / (cinfo->fck / 2);
7478 + } else {
7479 + cinfo->fck_div = 0;
7480 + }
7481 +
7482 + cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16);
7483 + cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0);
7484 +
7485 + cinfo->lck = cinfo->fck / cinfo->lck_div;
7486 + cinfo->pck = cinfo->lck / cinfo->pck_div;
7487 +
7488 + return 0;
7489 +}
7490 +
7491 +/* dispc.irq_lock has to be locked by the caller */
7492 +static void _omap_dispc_set_irqs(void)
7493 +{
7494 + u32 mask;
7495 + u32 old_mask;
7496 + int i;
7497 + struct omap_dispc_isr_data *isr_data;
7498 +
7499 + mask = dispc.irq_error_mask;
7500 +
7501 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7502 + isr_data = &dispc.registered_isr[i];
7503 +
7504 + if (isr_data->isr == NULL)
7505 + continue;
7506 +
7507 + mask |= isr_data->mask;
7508 + }
7509 +
7510 + enable_clocks(1);
7511 +
7512 + old_mask = dispc_read_reg(DISPC_IRQENABLE);
7513 + /* clear the irqstatus for newly enabled irqs */
7514 + dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
7515 +
7516 + dispc_write_reg(DISPC_IRQENABLE, mask);
7517 +
7518 + enable_clocks(0);
7519 +}
7520 +
7521 +int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
7522 +{
7523 + int i;
7524 + int ret;
7525 + unsigned long flags;
7526 + struct omap_dispc_isr_data *isr_data;
7527 +
7528 + if (isr == NULL)
7529 + return -EINVAL;
7530 +
7531 + spin_lock_irqsave(&dispc.irq_lock, flags);
7532 +
7533 + /* check for duplicate entry */
7534 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7535 + isr_data = &dispc.registered_isr[i];
7536 + if (isr_data->isr == isr && isr_data->arg == arg &&
7537 + isr_data->mask == mask) {
7538 + ret = -EINVAL;
7539 + goto err;
7540 + }
7541 + }
7542 +
7543 + isr_data = NULL;
7544 + ret = -EBUSY;
7545 +
7546 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7547 + isr_data = &dispc.registered_isr[i];
7548 +
7549 + if (isr_data->isr != NULL)
7550 + continue;
7551 +
7552 + isr_data->isr = isr;
7553 + isr_data->arg = arg;
7554 + isr_data->mask = mask;
7555 + ret = 0;
7556 +
7557 + break;
7558 + }
7559 +
7560 + _omap_dispc_set_irqs();
7561 +
7562 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7563 +
7564 + return 0;
7565 +err:
7566 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7567 +
7568 + return ret;
7569 +}
7570 +EXPORT_SYMBOL(omap_dispc_register_isr);
7571 +
7572 +int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
7573 +{
7574 + int i;
7575 + unsigned long flags;
7576 + int ret = -EINVAL;
7577 + struct omap_dispc_isr_data *isr_data;
7578 +
7579 + spin_lock_irqsave(&dispc.irq_lock, flags);
7580 +
7581 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7582 + isr_data = &dispc.registered_isr[i];
7583 + if (isr_data->isr != isr || isr_data->arg != arg ||
7584 + isr_data->mask != mask)
7585 + continue;
7586 +
7587 + /* found the correct isr */
7588 +
7589 + isr_data->isr = NULL;
7590 + isr_data->arg = NULL;
7591 + isr_data->mask = 0;
7592 +
7593 + ret = 0;
7594 + break;
7595 + }
7596 +
7597 + if (ret == 0)
7598 + _omap_dispc_set_irqs();
7599 +
7600 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7601 +
7602 + return ret;
7603 +}
7604 +EXPORT_SYMBOL(omap_dispc_unregister_isr);
7605 +
7606 +#ifdef DEBUG
7607 +static void print_irq_status(u32 status)
7608 +{
7609 + if ((status & dispc.irq_error_mask) == 0)
7610 + return;
7611 +
7612 + printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
7613 +
7614 +#define PIS(x) \
7615 + if (status & DISPC_IRQ_##x) \
7616 + printk(#x " ");
7617 + PIS(GFX_FIFO_UNDERFLOW);
7618 + PIS(OCP_ERR);
7619 + PIS(VID1_FIFO_UNDERFLOW);
7620 + PIS(VID2_FIFO_UNDERFLOW);
7621 + PIS(SYNC_LOST);
7622 + PIS(SYNC_LOST_DIGIT);
7623 +#undef PIS
7624 +
7625 + printk("\n");
7626 +}
7627 +#endif
7628 +
7629 +/* Called from dss.c. Note that we don't touch clocks here,
7630 + * but we presume they are on because we got an IRQ. However,
7631 + * an irq handler may turn the clocks off, so we may not have
7632 + * clock later in the function. */
7633 +void dispc_irq_handler(void)
7634 +{
7635 + int i;
7636 + u32 irqstatus;
7637 + u32 handledirqs = 0;
7638 + u32 unhandled_errors;
7639 + struct omap_dispc_isr_data *isr_data;
7640 + struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
7641 +
7642 + spin_lock(&dispc.irq_lock);
7643 +
7644 + irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
7645 +
7646 +#ifdef DEBUG
7647 + if (dss_debug)
7648 + print_irq_status(irqstatus);
7649 +#endif
7650 + /* Ack the interrupt. Do it here before clocks are possibly turned
7651 + * off */
7652 + dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
7653 +
7654 + /* make a copy and unlock, so that isrs can unregister
7655 + * themselves */
7656 + memcpy(registered_isr, dispc.registered_isr,
7657 + sizeof(registered_isr));
7658 +
7659 + spin_unlock(&dispc.irq_lock);
7660 +
7661 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7662 + isr_data = &registered_isr[i];
7663 +
7664 + if (!isr_data->isr)
7665 + continue;
7666 +
7667 + if (isr_data->mask & irqstatus) {
7668 + isr_data->isr(isr_data->arg, irqstatus);
7669 + handledirqs |= isr_data->mask;
7670 + }
7671 + }
7672 +
7673 + spin_lock(&dispc.irq_lock);
7674 +
7675 + unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
7676 +
7677 + if (unhandled_errors) {
7678 + dispc.error_irqs |= unhandled_errors;
7679 +
7680 + dispc.irq_error_mask &= ~unhandled_errors;
7681 + _omap_dispc_set_irqs();
7682 +
7683 + schedule_work(&dispc.error_work);
7684 + }
7685 +
7686 + spin_unlock(&dispc.irq_lock);
7687 +}
7688 +
7689 +static void dispc_error_worker(struct work_struct *work)
7690 +{
7691 + int i;
7692 + u32 errors;
7693 + unsigned long flags;
7694 +
7695 + spin_lock_irqsave(&dispc.irq_lock, flags);
7696 + errors = dispc.error_irqs;
7697 + dispc.error_irqs = 0;
7698 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7699 +
7700 + if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
7701 + DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
7702 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
7703 + struct omap_overlay *ovl;
7704 + ovl = omap_dss_get_overlay(i);
7705 +
7706 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
7707 + continue;
7708 +
7709 + if (ovl->id == 0) {
7710 + dispc_enable_plane(ovl->id, 0);
7711 + dispc_go(ovl->manager->id);
7712 + mdelay(50);
7713 + break;
7714 + }
7715 + }
7716 + }
7717 +
7718 + if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
7719 + DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
7720 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
7721 + struct omap_overlay *ovl;
7722 + ovl = omap_dss_get_overlay(i);
7723 +
7724 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
7725 + continue;
7726 +
7727 + if (ovl->id == 1) {
7728 + dispc_enable_plane(ovl->id, 0);
7729 + dispc_go(ovl->manager->id);
7730 + mdelay(50);
7731 + break;
7732 + }
7733 + }
7734 + }
7735 +
7736 + if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
7737 + DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
7738 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
7739 + struct omap_overlay *ovl;
7740 + ovl = omap_dss_get_overlay(i);
7741 +
7742 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
7743 + continue;
7744 +
7745 + if (ovl->id == 2) {
7746 + dispc_enable_plane(ovl->id, 0);
7747 + dispc_go(ovl->manager->id);
7748 + mdelay(50);
7749 + break;
7750 + }
7751 + }
7752 + }
7753 +
7754 + if (errors & DISPC_IRQ_SYNC_LOST) {
7755 + struct omap_overlay_manager *manager = NULL;
7756 + bool enable = false;
7757 +
7758 + DSSERR("SYNC_LOST, disabling LCD\n");
7759 +
7760 + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
7761 + struct omap_overlay_manager *mgr;
7762 + mgr = omap_dss_get_overlay_manager(i);
7763 +
7764 + if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
7765 + manager = mgr;
7766 + enable = mgr->device->state ==
7767 + OMAP_DSS_DISPLAY_ACTIVE;
7768 + mgr->device->disable(mgr->device);
7769 + break;
7770 + }
7771 + }
7772 +
7773 + if (manager) {
7774 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
7775 + struct omap_overlay *ovl;
7776 + ovl = omap_dss_get_overlay(i);
7777 +
7778 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
7779 + continue;
7780 +
7781 + if (ovl->id != 0 && ovl->manager == manager)
7782 + dispc_enable_plane(ovl->id, 0);
7783 + }
7784 +
7785 + dispc_go(manager->id);
7786 + mdelay(50);
7787 + if (enable)
7788 + manager->device->enable(manager->device);
7789 + }
7790 + }
7791 +
7792 + if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
7793 + struct omap_overlay_manager *manager = NULL;
7794 + bool enable = false;
7795 +
7796 + DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
7797 +
7798 + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
7799 + struct omap_overlay_manager *mgr;
7800 + mgr = omap_dss_get_overlay_manager(i);
7801 +
7802 + if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
7803 + manager = mgr;
7804 + enable = mgr->device->state ==
7805 + OMAP_DSS_DISPLAY_ACTIVE;
7806 + mgr->device->disable(mgr->device);
7807 + break;
7808 + }
7809 + }
7810 +
7811 + if (manager) {
7812 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
7813 + struct omap_overlay *ovl;
7814 + ovl = omap_dss_get_overlay(i);
7815 +
7816 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
7817 + continue;
7818 +
7819 + if (ovl->id != 0 && ovl->manager == manager)
7820 + dispc_enable_plane(ovl->id, 0);
7821 + }
7822 +
7823 + dispc_go(manager->id);
7824 + mdelay(50);
7825 + if (enable)
7826 + manager->device->enable(manager->device);
7827 + }
7828 + }
7829 +
7830 + if (errors & DISPC_IRQ_OCP_ERR) {
7831 + DSSERR("OCP_ERR\n");
7832 + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
7833 + struct omap_overlay_manager *mgr;
7834 + mgr = omap_dss_get_overlay_manager(i);
7835 +
7836 + if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
7837 + mgr->device->disable(mgr->device);
7838 + }
7839 + }
7840 +
7841 + spin_lock_irqsave(&dispc.irq_lock, flags);
7842 + dispc.irq_error_mask |= errors;
7843 + _omap_dispc_set_irqs();
7844 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7845 +}
7846 +
7847 +int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
7848 +{
7849 + void dispc_irq_wait_handler(void *data, u32 mask)
7850 + {
7851 + complete((struct completion *)data);
7852 + }
7853 +
7854 + int r;
7855 + DECLARE_COMPLETION_ONSTACK(completion);
7856 +
7857 + r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
7858 + irqmask);
7859 +
7860 + if (r)
7861 + return r;
7862 +
7863 + timeout = wait_for_completion_timeout(&completion, timeout);
7864 +
7865 + omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
7866 +
7867 + if (timeout == 0)
7868 + return -ETIMEDOUT;
7869 +
7870 + if (timeout == -ERESTARTSYS)
7871 + return -ERESTARTSYS;
7872 +
7873 + return 0;
7874 +}
7875 +
7876 +int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
7877 + unsigned long timeout)
7878 +{
7879 + void dispc_irq_wait_handler(void *data, u32 mask)
7880 + {
7881 + complete((struct completion *)data);
7882 + }
7883 +
7884 + int r;
7885 + DECLARE_COMPLETION_ONSTACK(completion);
7886 +
7887 + r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
7888 + irqmask);
7889 +
7890 + if (r)
7891 + return r;
7892 +
7893 + timeout = wait_for_completion_interruptible_timeout(&completion,
7894 + timeout);
7895 +
7896 + omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
7897 +
7898 + if (timeout == 0)
7899 + return -ETIMEDOUT;
7900 +
7901 + if (timeout == -ERESTARTSYS)
7902 + return -ERESTARTSYS;
7903 +
7904 + return 0;
7905 +}
7906 +
7907 +#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
7908 +void dispc_fake_vsync_irq(void)
7909 +{
7910 + u32 irqstatus = DISPC_IRQ_VSYNC;
7911 + int i;
7912 +
7913 + for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
7914 + struct omap_dispc_isr_data *isr_data;
7915 + isr_data = &dispc.registered_isr[i];
7916 +
7917 + if (!isr_data->isr)
7918 + continue;
7919 +
7920 + if (isr_data->mask & irqstatus)
7921 + isr_data->isr(isr_data->arg, irqstatus);
7922 + }
7923 +}
7924 +#endif
7925 +
7926 +static void _omap_dispc_initialize_irq(void)
7927 +{
7928 + unsigned long flags;
7929 +
7930 + spin_lock_irqsave(&dispc.irq_lock, flags);
7931 +
7932 + memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
7933 +
7934 + dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
7935 +
7936 + /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
7937 + * so clear it */
7938 + dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
7939 +
7940 + _omap_dispc_set_irqs();
7941 +
7942 + spin_unlock_irqrestore(&dispc.irq_lock, flags);
7943 +}
7944 +
7945 +void dispc_enable_sidle(void)
7946 +{
7947 + REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
7948 +}
7949 +
7950 +void dispc_disable_sidle(void)
7951 +{
7952 + REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
7953 +}
7954 +
7955 +static void _omap_dispc_initial_config(void)
7956 +{
7957 + u32 l;
7958 +
7959 + l = dispc_read_reg(DISPC_SYSCONFIG);
7960 + l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
7961 + l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
7962 + l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
7963 + l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
7964 + dispc_write_reg(DISPC_SYSCONFIG, l);
7965 +
7966 + /* FUNCGATED */
7967 + REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
7968 +
7969 + /* L3 firewall setting: enable access to OCM RAM */
7970 + if (cpu_is_omap24xx())
7971 + __raw_writel(0x402000b0, OMAP2_IO_ADDRESS(0x680050a0));
7972 +
7973 + _dispc_setup_color_conv_coef();
7974 +
7975 + dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
7976 +
7977 + dispc_read_plane_fifo_sizes();
7978 +}
7979 +
7980 +int dispc_init(void)
7981 +{
7982 + u32 rev;
7983 +
7984 + spin_lock_init(&dispc.irq_lock);
7985 +
7986 + INIT_WORK(&dispc.error_work, dispc_error_worker);
7987 +
7988 + dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS);
7989 + if (!dispc.base) {
7990 + DSSERR("can't ioremap DISPC\n");
7991 + return -ENOMEM;
7992 + }
7993 +
7994 + if (cpu_is_omap34xx()) {
7995 + dispc.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck");
7996 + if (IS_ERR(dispc.dpll4_m4_ck)) {
7997 + DSSERR("Failed to get dpll4_m4_ck\n");
7998 + return -ENODEV;
7999 + }
8000 + }
8001 +
8002 + enable_clocks(1);
8003 +
8004 + _omap_dispc_initial_config();
8005 +
8006 + _omap_dispc_initialize_irq();
8007 +
8008 + dispc_save_context();
8009 +
8010 + rev = dispc_read_reg(DISPC_REVISION);
8011 + printk(KERN_INFO "OMAP DISPC rev %d.%d\n",
8012 + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
8013 +
8014 + enable_clocks(0);
8015 +
8016 + return 0;
8017 +}
8018 +
8019 +void dispc_exit(void)
8020 +{
8021 + if (cpu_is_omap34xx())
8022 + clk_put(dispc.dpll4_m4_ck);
8023 + iounmap(dispc.base);
8024 +}
8025 +
8026 +int dispc_enable_plane(enum omap_plane plane, bool enable)
8027 +{
8028 + DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
8029 +
8030 + enable_clocks(1);
8031 + _dispc_enable_plane(plane, enable);
8032 + enable_clocks(0);
8033 +
8034 + return 0;
8035 +}
8036 +
8037 +int dispc_setup_plane(enum omap_plane plane,
8038 + u32 paddr, u16 screen_width,
8039 + u16 pos_x, u16 pos_y,
8040 + u16 width, u16 height,
8041 + u16 out_width, u16 out_height,
8042 + enum omap_color_mode color_mode,
8043 + bool ilace,
8044 + enum omap_dss_rotation_type rotation_type,
8045 + u8 rotation, bool mirror, u8 global_alpha)
8046 +{
8047 + int r = 0;
8048 +
8049 + DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> "
8050 + "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n",
8051 + plane, paddr, screen_width, pos_x, pos_y,
8052 + width, height,
8053 + out_width, out_height,
8054 + ilace, color_mode,
8055 + rotation, mirror);
8056 +
8057 + enable_clocks(1);
8058 +
8059 + r = _dispc_setup_plane(plane,
8060 + paddr, screen_width,
8061 + pos_x, pos_y,
8062 + width, height,
8063 + out_width, out_height,
8064 + color_mode, ilace,
8065 + rotation_type,
8066 + rotation, mirror,
8067 + global_alpha);
8068 +
8069 + enable_clocks(0);
8070 +
8071 + return r;
8072 +}
8073 --- /dev/null
8074 +++ b/drivers/video/omap2/dss/display.c
8075 @@ -0,0 +1,658 @@
8076 +/*
8077 + * linux/drivers/video/omap2/dss/display.c
8078 + *
8079 + * Copyright (C) 2009 Nokia Corporation
8080 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
8081 + *
8082 + * Some code and ideas taken from drivers/video/omap/ driver
8083 + * by Imre Deak.
8084 + *
8085 + * This program is free software; you can redistribute it and/or modify it
8086 + * under the terms of the GNU General Public License version 2 as published by
8087 + * the Free Software Foundation.
8088 + *
8089 + * This program is distributed in the hope that it will be useful, but WITHOUT
8090 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8091 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
8092 + * more details.
8093 + *
8094 + * You should have received a copy of the GNU General Public License along with
8095 + * this program. If not, see <http://www.gnu.org/licenses/>.
8096 + */
8097 +
8098 +#define DSS_SUBSYS_NAME "DISPLAY"
8099 +
8100 +#include <linux/kernel.h>
8101 +#include <linux/module.h>
8102 +#include <linux/jiffies.h>
8103 +#include <linux/list.h>
8104 +#include <linux/platform_device.h>
8105 +
8106 +#include <mach/display.h>
8107 +#include "dss.h"
8108 +
8109 +static LIST_HEAD(display_list);
8110 +
8111 +static ssize_t display_enabled_show(struct device *dev,
8112 + struct device_attribute *attr, char *buf)
8113 +{
8114 + struct omap_dss_device *dssdev = to_dss_device(dev);
8115 + bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
8116 +
8117 + return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
8118 +}
8119 +
8120 +static ssize_t display_enabled_store(struct device *dev,
8121 + struct device_attribute *attr,
8122 + const char *buf, size_t size)
8123 +{
8124 + struct omap_dss_device *dssdev = to_dss_device(dev);
8125 + bool enabled, r;
8126 +
8127 + enabled = simple_strtoul(buf, NULL, 10);
8128 +
8129 + if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
8130 + if (enabled) {
8131 + r = dssdev->enable(dssdev);
8132 + if (r)
8133 + return r;
8134 + } else {
8135 + dssdev->disable(dssdev);
8136 + }
8137 + }
8138 +
8139 + return size;
8140 +}
8141 +
8142 +static ssize_t display_upd_mode_show(struct device *dev,
8143 + struct device_attribute *attr, char *buf)
8144 +{
8145 + struct omap_dss_device *dssdev = to_dss_device(dev);
8146 + enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO;
8147 + if (dssdev->get_update_mode)
8148 + mode = dssdev->get_update_mode(dssdev);
8149 + return snprintf(buf, PAGE_SIZE, "%d\n", mode);
8150 +}
8151 +
8152 +static ssize_t display_upd_mode_store(struct device *dev,
8153 + struct device_attribute *attr,
8154 + const char *buf, size_t size)
8155 +{
8156 + struct omap_dss_device *dssdev = to_dss_device(dev);
8157 + int val, r;
8158 + enum omap_dss_update_mode mode;
8159 +
8160 + val = simple_strtoul(buf, NULL, 10);
8161 +
8162 + switch (val) {
8163 + case OMAP_DSS_UPDATE_DISABLED:
8164 + case OMAP_DSS_UPDATE_AUTO:
8165 + case OMAP_DSS_UPDATE_MANUAL:
8166 + mode = (enum omap_dss_update_mode)val;
8167 + break;
8168 + default:
8169 + return -EINVAL;
8170 + }
8171 +
8172 + r = dssdev->set_update_mode(dssdev, mode);
8173 + if (r)
8174 + return r;
8175 +
8176 + return size;
8177 +}
8178 +
8179 +static ssize_t display_tear_show(struct device *dev,
8180 + struct device_attribute *attr, char *buf)
8181 +{
8182 + struct omap_dss_device *dssdev = to_dss_device(dev);
8183 + return snprintf(buf, PAGE_SIZE, "%d\n",
8184 + dssdev->get_te ? dssdev->get_te(dssdev) : 0);
8185 +}
8186 +
8187 +static ssize_t display_tear_store(struct device *dev,
8188 + struct device_attribute *attr, const char *buf, size_t size)
8189 +{
8190 + struct omap_dss_device *dssdev = to_dss_device(dev);
8191 + unsigned long te;
8192 + int r;
8193 +
8194 + if (!dssdev->enable_te || !dssdev->get_te)
8195 + return -ENOENT;
8196 +
8197 + te = simple_strtoul(buf, NULL, 0);
8198 +
8199 + r = dssdev->enable_te(dssdev, te);
8200 + if (r)
8201 + return r;
8202 +
8203 + return size;
8204 +}
8205 +
8206 +static ssize_t display_timings_show(struct device *dev,
8207 + struct device_attribute *attr, char *buf)
8208 +{
8209 + struct omap_dss_device *dssdev = to_dss_device(dev);
8210 + struct omap_video_timings t;
8211 +
8212 + if (!dssdev->get_timings)
8213 + return -ENOENT;
8214 +
8215 + dssdev->get_timings(dssdev, &t);
8216 +
8217 + return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
8218 + t.pixel_clock,
8219 + t.x_res, t.hfp, t.hbp, t.hsw,
8220 + t.y_res, t.vfp, t.vbp, t.vsw);
8221 +}
8222 +
8223 +static ssize_t display_timings_store(struct device *dev,
8224 + struct device_attribute *attr, const char *buf, size_t size)
8225 +{
8226 + struct omap_dss_device *dssdev = to_dss_device(dev);
8227 + struct omap_video_timings t;
8228 + int r, found;
8229 +
8230 + if (!dssdev->set_timings || !dssdev->check_timings)
8231 + return -ENOENT;
8232 +
8233 + found = 0;
8234 +#ifdef CONFIG_OMAP2_DSS_VENC
8235 + if (strncmp("pal", buf, 3) == 0) {
8236 + t = omap_dss_pal_timings;
8237 + found = 1;
8238 + } else if (strncmp("ntsc", buf, 4) == 0) {
8239 + t = omap_dss_ntsc_timings;
8240 + found = 1;
8241 + }
8242 +#endif
8243 + if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
8244 + &t.pixel_clock,
8245 + &t.x_res, &t.hfp, &t.hbp, &t.hsw,
8246 + &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
8247 + return -EINVAL;
8248 +
8249 + r = dssdev->check_timings(dssdev, &t);
8250 + if (r)
8251 + return r;
8252 +
8253 + dssdev->set_timings(dssdev, &t);
8254 +
8255 + return size;
8256 +}
8257 +
8258 +static ssize_t display_rotate_show(struct device *dev,
8259 + struct device_attribute *attr, char *buf)
8260 +{
8261 + struct omap_dss_device *dssdev = to_dss_device(dev);
8262 + int rotate;
8263 + if (!dssdev->get_rotate)
8264 + return -ENOENT;
8265 + rotate = dssdev->get_rotate(dssdev);
8266 + return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
8267 +}
8268 +
8269 +static ssize_t display_rotate_store(struct device *dev,
8270 + struct device_attribute *attr, const char *buf, size_t size)
8271 +{
8272 + struct omap_dss_device *dssdev = to_dss_device(dev);
8273 + unsigned long rot;
8274 + int r;
8275 +
8276 + if (!dssdev->set_rotate || !dssdev->get_rotate)
8277 + return -ENOENT;
8278 +
8279 + rot = simple_strtoul(buf, NULL, 0);
8280 +
8281 + r = dssdev->set_rotate(dssdev, rot);
8282 + if (r)
8283 + return r;
8284 +
8285 + return size;
8286 +}
8287 +
8288 +static ssize_t display_mirror_show(struct device *dev,
8289 + struct device_attribute *attr, char *buf)
8290 +{
8291 + struct omap_dss_device *dssdev = to_dss_device(dev);
8292 + int mirror;
8293 + if (!dssdev->get_mirror)
8294 + return -ENOENT;
8295 + mirror = dssdev->get_mirror(dssdev);
8296 + return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
8297 +}
8298 +
8299 +static ssize_t display_mirror_store(struct device *dev,
8300 + struct device_attribute *attr, const char *buf, size_t size)
8301 +{
8302 + struct omap_dss_device *dssdev = to_dss_device(dev);
8303 + unsigned long mirror;
8304 + int r;
8305 +
8306 + if (!dssdev->set_mirror || !dssdev->get_mirror)
8307 + return -ENOENT;
8308 +
8309 + mirror = simple_strtoul(buf, NULL, 0);
8310 +
8311 + r = dssdev->set_mirror(dssdev, mirror);
8312 + if (r)
8313 + return r;
8314 +
8315 + return size;
8316 +}
8317 +
8318 +static ssize_t display_wss_show(struct device *dev,
8319 + struct device_attribute *attr, char *buf)
8320 +{
8321 + struct omap_dss_device *dssdev = to_dss_device(dev);
8322 + unsigned int wss;
8323 +
8324 + if (!dssdev->get_wss)
8325 + return -ENOENT;
8326 +
8327 + wss = dssdev->get_wss(dssdev);
8328 +
8329 + return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
8330 +}
8331 +
8332 +static ssize_t display_wss_store(struct device *dev,
8333 + struct device_attribute *attr, const char *buf, size_t size)
8334 +{
8335 + struct omap_dss_device *dssdev = to_dss_device(dev);
8336 + unsigned long wss;
8337 + int r;
8338 +
8339 + if (!dssdev->get_wss || !dssdev->set_wss)
8340 + return -ENOENT;
8341 +
8342 + if (strict_strtoul(buf, 0, &wss))
8343 + return -EINVAL;
8344 +
8345 + if (wss > 0xfffff)
8346 + return -EINVAL;
8347 +
8348 + r = dssdev->set_wss(dssdev, wss);
8349 + if (r)
8350 + return r;
8351 +
8352 + return size;
8353 +}
8354 +
8355 +static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
8356 + display_enabled_show, display_enabled_store);
8357 +static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR,
8358 + display_upd_mode_show, display_upd_mode_store);
8359 +static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
8360 + display_tear_show, display_tear_store);
8361 +static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
8362 + display_timings_show, display_timings_store);
8363 +static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
8364 + display_rotate_show, display_rotate_store);
8365 +static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
8366 + display_mirror_show, display_mirror_store);
8367 +static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
8368 + display_wss_show, display_wss_store);
8369 +
8370 +static struct device_attribute *display_sysfs_attrs[] = {
8371 + &dev_attr_enabled,
8372 + &dev_attr_update_mode,
8373 + &dev_attr_tear_elim,
8374 + &dev_attr_timings,
8375 + &dev_attr_rotate,
8376 + &dev_attr_mirror,
8377 + &dev_attr_wss,
8378 + NULL
8379 +};
8380 +
8381 +static void default_get_resolution(struct omap_dss_device *dssdev,
8382 + u16 *xres, u16 *yres)
8383 +{
8384 + *xres = dssdev->panel.timings.x_res;
8385 + *yres = dssdev->panel.timings.y_res;
8386 +}
8387 +
8388 +void default_get_overlay_fifo_thresholds(enum omap_plane plane,
8389 + u32 fifo_size, enum omap_burst_size *burst_size,
8390 + u32 *fifo_low, u32 *fifo_high)
8391 +{
8392 + unsigned burst_size_bytes;
8393 +
8394 + *burst_size = OMAP_DSS_BURST_16x32;
8395 + burst_size_bytes = 16 * 32 / 8;
8396 +
8397 + *fifo_high = fifo_size - 1;
8398 + *fifo_low = fifo_size - burst_size_bytes;
8399 +}
8400 +
8401 +static int default_wait_vsync(struct omap_dss_device *dssdev)
8402 +{
8403 + unsigned long timeout = msecs_to_jiffies(500);
8404 + u32 irq;
8405 +
8406 + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
8407 + irq = DISPC_IRQ_EVSYNC_ODD;
8408 + else
8409 + irq = DISPC_IRQ_VSYNC;
8410 +
8411 + return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
8412 +}
8413 +
8414 +static int default_get_recommended_bpp(struct omap_dss_device *dssdev)
8415 +{
8416 + if (dssdev->panel.recommended_bpp)
8417 + return dssdev->panel.recommended_bpp;
8418 +
8419 + switch (dssdev->type) {
8420 + case OMAP_DISPLAY_TYPE_DPI:
8421 + if (dssdev->phy.dpi.data_lines == 24)
8422 + return 24;
8423 + else
8424 + return 16;
8425 +
8426 + case OMAP_DISPLAY_TYPE_DBI:
8427 + case OMAP_DISPLAY_TYPE_DSI:
8428 + if (dssdev->ctrl.pixel_size == 24)
8429 + return 24;
8430 + else
8431 + return 16;
8432 + case OMAP_DISPLAY_TYPE_VENC:
8433 + case OMAP_DISPLAY_TYPE_SDI:
8434 + return 24;
8435 + return 24;
8436 + default:
8437 + BUG();
8438 + }
8439 +}
8440 +
8441 +/* Checks if replication logic should be used. Only use for active matrix,
8442 + * when overlay is in RGB12U or RGB16 mode, and LCD interface is
8443 + * 18bpp or 24bpp */
8444 +bool dss_use_replication(struct omap_dss_device *dssdev,
8445 + enum omap_color_mode mode)
8446 +{
8447 + int bpp;
8448 +
8449 + if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16)
8450 + return false;
8451 +
8452 + if (dssdev->type == OMAP_DISPLAY_TYPE_DPI &&
8453 + (dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0)
8454 + return false;
8455 +
8456 + switch (dssdev->type) {
8457 + case OMAP_DISPLAY_TYPE_DPI:
8458 + bpp = dssdev->phy.dpi.data_lines;
8459 + break;
8460 + case OMAP_DISPLAY_TYPE_VENC:
8461 + case OMAP_DISPLAY_TYPE_SDI:
8462 + bpp = 24;
8463 + break;
8464 + case OMAP_DISPLAY_TYPE_DBI:
8465 + case OMAP_DISPLAY_TYPE_DSI:
8466 + bpp = dssdev->ctrl.pixel_size;
8467 + break;
8468 + default:
8469 + BUG();
8470 + }
8471 +
8472 + return bpp > 16;
8473 +}
8474 +
8475 +void dss_init_device(struct platform_device *pdev,
8476 + struct omap_dss_device *dssdev)
8477 +{
8478 + struct device_attribute *attr;
8479 + int i;
8480 + int r;
8481 +
8482 + switch (dssdev->type) {
8483 + case OMAP_DISPLAY_TYPE_DPI:
8484 +#ifdef CONFIG_OMAP2_DSS_RFBI
8485 + case OMAP_DISPLAY_TYPE_DBI:
8486 +#endif
8487 +#ifdef CONFIG_OMAP2_DSS_SDI
8488 + case OMAP_DISPLAY_TYPE_SDI:
8489 +#endif
8490 +#ifdef CONFIG_OMAP2_DSS_DSI
8491 + case OMAP_DISPLAY_TYPE_DSI:
8492 +#endif
8493 +#ifdef CONFIG_OMAP2_DSS_VENC
8494 + case OMAP_DISPLAY_TYPE_VENC:
8495 +#endif
8496 + break;
8497 + default:
8498 + DSSERR("Support for display '%s' not compiled in.\n",
8499 + dssdev->name);
8500 + return;
8501 + }
8502 +
8503 + dssdev->get_resolution = default_get_resolution;
8504 + dssdev->get_recommended_bpp = default_get_recommended_bpp;
8505 + dssdev->wait_vsync = default_wait_vsync;
8506 +
8507 + switch (dssdev->type) {
8508 + case OMAP_DISPLAY_TYPE_DPI:
8509 + r = dpi_init_display(dssdev);
8510 + break;
8511 +#ifdef CONFIG_OMAP2_DSS_RFBI
8512 + case OMAP_DISPLAY_TYPE_DBI:
8513 + r = rfbi_init_display(dssdev);
8514 + break;
8515 +#endif
8516 +#ifdef CONFIG_OMAP2_DSS_VENC
8517 + case OMAP_DISPLAY_TYPE_VENC:
8518 + r = venc_init_display(dssdev);
8519 + break;
8520 +#endif
8521 +#ifdef CONFIG_OMAP2_DSS_SDI
8522 + case OMAP_DISPLAY_TYPE_SDI:
8523 + r = sdi_init_display(dssdev);
8524 + break;
8525 +#endif
8526 +#ifdef CONFIG_OMAP2_DSS_DSI
8527 + case OMAP_DISPLAY_TYPE_DSI:
8528 + r = dsi_init_display(dssdev);
8529 + break;
8530 +#endif
8531 + default:
8532 + BUG();
8533 + }
8534 +
8535 + if (r) {
8536 + DSSERR("failed to init display %s\n", dssdev->name);
8537 + return;
8538 + }
8539 +
8540 + /* create device sysfs files */
8541 + i = 0;
8542 + while ((attr = display_sysfs_attrs[i++]) != NULL) {
8543 + r = device_create_file(&dssdev->dev, attr);
8544 + if (r)
8545 + DSSERR("failed to create sysfs file\n");
8546 + }
8547 +
8548 + /* create display? sysfs links */
8549 + r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,
8550 + dev_name(&dssdev->dev));
8551 + if (r)
8552 + DSSERR("failed to create sysfs display link\n");
8553 +}
8554 +
8555 +void dss_uninit_device(struct platform_device *pdev,
8556 + struct omap_dss_device *dssdev)
8557 +{
8558 + struct device_attribute *attr;
8559 + int i = 0;
8560 +
8561 + sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));
8562 +
8563 + while ((attr = display_sysfs_attrs[i++]) != NULL)
8564 + device_remove_file(&dssdev->dev, attr);
8565 +
8566 + if (dssdev->manager)
8567 + dssdev->manager->unset_device(dssdev->manager);
8568 +}
8569 +
8570 +static int dss_suspend_device(struct device *dev, void *data)
8571 +{
8572 + int r;
8573 + struct omap_dss_device *dssdev = to_dss_device(dev);
8574 +
8575 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
8576 + dssdev->activate_after_resume = false;
8577 + return 0;
8578 + }
8579 +
8580 + if (!dssdev->suspend) {
8581 + DSSERR("display '%s' doesn't implement suspend\n",
8582 + dssdev->name);
8583 + return -ENOSYS;
8584 + }
8585 +
8586 + r = dssdev->suspend(dssdev);
8587 + if (r)
8588 + return r;
8589 +
8590 + dssdev->activate_after_resume = true;
8591 +
8592 + return 0;
8593 +}
8594 +
8595 +int dss_suspend_all_devices(void)
8596 +{
8597 + int r;
8598 + struct bus_type *bus = dss_get_bus();
8599 +
8600 + r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device);
8601 + if (r) {
8602 + /* resume all displays that were suspended */
8603 + dss_resume_all_devices();
8604 + return r;
8605 + }
8606 +
8607 + return 0;
8608 +}
8609 +
8610 +static int dss_resume_device(struct device *dev, void *data)
8611 +{
8612 + int r;
8613 + struct omap_dss_device *dssdev = to_dss_device(dev);
8614 +
8615 + if (dssdev->activate_after_resume && dssdev->resume) {
8616 + r = dssdev->resume(dssdev);
8617 + if (r)
8618 + return r;
8619 + }
8620 +
8621 + dssdev->activate_after_resume = false;
8622 +
8623 + return 0;
8624 +}
8625 +
8626 +int dss_resume_all_devices(void)
8627 +{
8628 + struct bus_type *bus = dss_get_bus();
8629 +
8630 + return bus_for_each_dev(bus, NULL, NULL, dss_resume_device);
8631 +}
8632 +
8633 +
8634 +void omap_dss_get_device(struct omap_dss_device *dssdev)
8635 +{
8636 + get_device(&dssdev->dev);
8637 +}
8638 +EXPORT_SYMBOL(omap_dss_get_device);
8639 +
8640 +void omap_dss_put_device(struct omap_dss_device *dssdev)
8641 +{
8642 + put_device(&dssdev->dev);
8643 +}
8644 +EXPORT_SYMBOL(omap_dss_put_device);
8645 +
8646 +/* ref count of the found device is incremented. ref count
8647 + * of from-device is decremented. */
8648 +struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from)
8649 +{
8650 + struct device *dev;
8651 + struct device *dev_start = NULL;
8652 + struct omap_dss_device *dssdev = NULL;
8653 +
8654 + int match(struct device *dev, void *data)
8655 + {
8656 + /* skip panels connected to controllers */
8657 + if (to_dss_device(dev)->panel.ctrl)
8658 + return 0;
8659 +
8660 + return 1;
8661 + }
8662 +
8663 + if (from)
8664 + dev_start = &from->dev;
8665 + dev = bus_find_device(dss_get_bus(), dev_start, NULL, match);
8666 + if (dev)
8667 + dssdev = to_dss_device(dev);
8668 + if (from)
8669 + put_device(&from->dev);
8670 +
8671 + return dssdev;
8672 +}
8673 +EXPORT_SYMBOL(omap_dss_get_next_device);
8674 +
8675 +struct omap_dss_device *omap_dss_find_device(void *data,
8676 + int (*match)(struct omap_dss_device *dssdev, void *data))
8677 +{
8678 + struct omap_dss_device *dssdev = NULL;
8679 +
8680 + while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) {
8681 + if (match(dssdev, data))
8682 + return dssdev;
8683 + }
8684 +
8685 + return NULL;
8686 +}
8687 +EXPORT_SYMBOL(omap_dss_find_device);
8688 +
8689 +int omap_dss_start_device(struct omap_dss_device *dssdev)
8690 +{
8691 + int r;
8692 +
8693 + if (!dssdev->driver) {
8694 + DSSDBG("no driver\n");
8695 + r = -ENODEV;
8696 + goto err0;
8697 + }
8698 +
8699 + if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) {
8700 + DSSDBG("no panel driver\n");
8701 + r = -ENODEV;
8702 + goto err0;
8703 + }
8704 +
8705 + if (!try_module_get(dssdev->dev.driver->owner)) {
8706 + r = -ENODEV;
8707 + goto err0;
8708 + }
8709 +
8710 + if (dssdev->ctrl.panel) {
8711 + if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) {
8712 + r = -ENODEV;
8713 + goto err1;
8714 + }
8715 + }
8716 +
8717 + return 0;
8718 +err1:
8719 + module_put(dssdev->dev.driver->owner);
8720 +err0:
8721 + return r;
8722 +}
8723 +EXPORT_SYMBOL(omap_dss_start_device);
8724 +
8725 +void omap_dss_stop_device(struct omap_dss_device *dssdev)
8726 +{
8727 + if (dssdev->ctrl.panel)
8728 + module_put(dssdev->ctrl.panel->dev.driver->owner);
8729 +
8730 + module_put(dssdev->dev.driver->owner);
8731 +}
8732 +EXPORT_SYMBOL(omap_dss_stop_device);
8733 +
8734 --- /dev/null
8735 +++ b/drivers/video/omap2/dss/dpi.c
8736 @@ -0,0 +1,388 @@
8737 +/*
8738 + * linux/drivers/video/omap2/dss/dpi.c
8739 + *
8740 + * Copyright (C) 2009 Nokia Corporation
8741 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
8742 + *
8743 + * Some code and ideas taken from drivers/video/omap/ driver
8744 + * by Imre Deak.
8745 + *
8746 + * This program is free software; you can redistribute it and/or modify it
8747 + * under the terms of the GNU General Public License version 2 as published by
8748 + * the Free Software Foundation.
8749 + *
8750 + * This program is distributed in the hope that it will be useful, but WITHOUT
8751 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8752 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
8753 + * more details.
8754 + *
8755 + * You should have received a copy of the GNU General Public License along with
8756 + * this program. If not, see <http://www.gnu.org/licenses/>.
8757 + */
8758 +
8759 +#define DSS_SUBSYS_NAME "DPI"
8760 +
8761 +#include <linux/kernel.h>
8762 +#include <linux/clk.h>
8763 +#include <linux/delay.h>
8764 +#include <linux/errno.h>
8765 +
8766 +#include <mach/board.h>
8767 +#include <mach/display.h>
8768 +#include <mach/cpu.h>
8769 +
8770 +#include "dss.h"
8771 +
8772 +static struct {
8773 + int update_enabled;
8774 +} dpi;
8775 +
8776 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
8777 +static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req,
8778 + unsigned long *fck, int *lck_div, int *pck_div)
8779 +{
8780 + struct dsi_clock_info cinfo;
8781 + int r;
8782 +
8783 + r = dsi_pll_calc_pck(is_tft, pck_req, &cinfo);
8784 + if (r)
8785 + return r;
8786 +
8787 + r = dsi_pll_program(&cinfo);
8788 + if (r)
8789 + return r;
8790 +
8791 + dss_select_clk_source(0, 1);
8792 +
8793 + dispc_set_lcd_divisor(cinfo.lck_div, cinfo.pck_div);
8794 +
8795 + *fck = cinfo.dsi1_pll_fclk;
8796 + *lck_div = cinfo.lck_div;
8797 + *pck_div = cinfo.pck_div;
8798 +
8799 + return 0;
8800 +}
8801 +#else
8802 +static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req,
8803 + unsigned long *fck, int *lck_div, int *pck_div)
8804 +{
8805 + struct dispc_clock_info cinfo;
8806 + int r;
8807 +
8808 + r = dispc_calc_clock_div(is_tft, pck_req, &cinfo);
8809 + if (r)
8810 + return r;
8811 +
8812 + r = dispc_set_clock_div(&cinfo);
8813 + if (r)
8814 + return r;
8815 +
8816 + *fck = cinfo.fck;
8817 + *lck_div = cinfo.lck_div;
8818 + *pck_div = cinfo.pck_div;
8819 +
8820 + return 0;
8821 +}
8822 +#endif
8823 +
8824 +static int dpi_set_mode(struct omap_dss_device *dssdev)
8825 +{
8826 + struct omap_video_timings *t = &dssdev->panel.timings;
8827 + int lck_div, pck_div;
8828 + unsigned long fck;
8829 + unsigned long pck;
8830 + bool is_tft;
8831 + int r = 0;
8832 +
8833 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
8834 +
8835 + dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
8836 + dssdev->panel.acb);
8837 +
8838 + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
8839 +
8840 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
8841 + r = dpi_set_dsi_clk(is_tft, t->pixel_clock * 1000,
8842 + &fck, &lck_div, &pck_div);
8843 +#else
8844 + r = dpi_set_dispc_clk(is_tft, t->pixel_clock * 1000,
8845 + &fck, &lck_div, &pck_div);
8846 +#endif
8847 + if (r)
8848 + goto err0;
8849 +
8850 + pck = fck / lck_div / pck_div / 1000;
8851 +
8852 + if (pck != t->pixel_clock) {
8853 + DSSWARN("Could not find exact pixel clock. "
8854 + "Requested %d kHz, got %lu kHz\n",
8855 + t->pixel_clock, pck);
8856 +
8857 + t->pixel_clock = pck;
8858 + }
8859 +
8860 + dispc_set_lcd_timings(t);
8861 +
8862 +err0:
8863 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
8864 + return r;
8865 +}
8866 +
8867 +static int dpi_basic_init(struct omap_dss_device *dssdev)
8868 +{
8869 + bool is_tft;
8870 +
8871 + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
8872 +
8873 + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
8874 + dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT :
8875 + OMAP_DSS_LCD_DISPLAY_STN);
8876 + dispc_set_tft_data_lines(dssdev->phy.dpi.data_lines);
8877 +
8878 + return 0;
8879 +}
8880 +
8881 +static int dpi_display_enable(struct omap_dss_device *dssdev)
8882 +{
8883 + int r;
8884 +
8885 + r = omap_dss_start_device(dssdev);
8886 + if (r) {
8887 + DSSERR("failed to start device\n");
8888 + goto err0;
8889 + }
8890 +
8891 + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
8892 + DSSERR("display already enabled\n");
8893 + r = -EINVAL;
8894 + goto err1;
8895 + }
8896 +
8897 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
8898 +
8899 + r = dpi_basic_init(dssdev);
8900 + if (r)
8901 + goto err2;
8902 +
8903 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
8904 + dss_clk_enable(DSS_CLK_FCK2);
8905 + r = dsi_pll_init(0, 1);
8906 + if (r)
8907 + goto err3;
8908 +#endif
8909 + r = dpi_set_mode(dssdev);
8910 + if (r)
8911 + goto err4;
8912 +
8913 + mdelay(2);
8914 +
8915 + dispc_enable_lcd_out(1);
8916 +
8917 + r = dssdev->driver->enable(dssdev);
8918 + if (r)
8919 + goto err5;
8920 +
8921 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
8922 +
8923 + return 0;
8924 +
8925 +err5:
8926 + dispc_enable_lcd_out(0);
8927 +err4:
8928 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
8929 + dsi_pll_uninit();
8930 +err3:
8931 + dss_clk_disable(DSS_CLK_FCK2);
8932 +#endif
8933 +err2:
8934 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
8935 +err1:
8936 + omap_dss_stop_device(dssdev);
8937 +err0:
8938 + return r;
8939 +}
8940 +
8941 +static int dpi_display_resume(struct omap_dss_device *dssdev);
8942 +
8943 +static void dpi_display_disable(struct omap_dss_device *dssdev)
8944 +{
8945 + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
8946 + return;
8947 +
8948 + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
8949 + dpi_display_resume(dssdev);
8950 +
8951 + dssdev->driver->disable(dssdev);
8952 +
8953 + dispc_enable_lcd_out(0);
8954 +
8955 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
8956 + dss_select_clk_source(0, 0);
8957 + dsi_pll_uninit();
8958 + dss_clk_disable(DSS_CLK_FCK2);
8959 +#endif
8960 +
8961 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
8962 +
8963 + dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
8964 +
8965 + omap_dss_stop_device(dssdev);
8966 +}
8967 +
8968 +static int dpi_display_suspend(struct omap_dss_device *dssdev)
8969 +{
8970 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
8971 + return -EINVAL;
8972 +
8973 + DSSDBG("dpi_display_suspend\n");
8974 +
8975 + if (dssdev->driver->suspend)
8976 + dssdev->driver->suspend(dssdev);
8977 +
8978 + dispc_enable_lcd_out(0);
8979 +
8980 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
8981 +
8982 + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
8983 +
8984 + return 0;
8985 +}
8986 +
8987 +static int dpi_display_resume(struct omap_dss_device *dssdev)
8988 +{
8989 + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
8990 + return -EINVAL;
8991 +
8992 + DSSDBG("dpi_display_resume\n");
8993 +
8994 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
8995 +
8996 + dispc_enable_lcd_out(1);
8997 +
8998 + if (dssdev->driver->resume)
8999 + dssdev->driver->resume(dssdev);
9000 +
9001 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
9002 +
9003 + return 0;
9004 +}
9005 +
9006 +static void dpi_set_timings(struct omap_dss_device *dssdev,
9007 + struct omap_video_timings *timings)
9008 +{
9009 + DSSDBG("dpi_set_timings\n");
9010 + dssdev->panel.timings = *timings;
9011 + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
9012 + dpi_set_mode(dssdev);
9013 + dispc_go(OMAP_DSS_CHANNEL_LCD);
9014 + }
9015 +}
9016 +
9017 +static int dpi_check_timings(struct omap_dss_device *dssdev,
9018 + struct omap_video_timings *timings)
9019 +{
9020 + bool is_tft;
9021 + int r;
9022 + int lck_div, pck_div;
9023 + unsigned long fck;
9024 + unsigned long pck;
9025 +
9026 + if (!dispc_lcd_timings_ok(timings))
9027 + return -EINVAL;
9028 +
9029 + if (timings->pixel_clock == 0)
9030 + return -EINVAL;
9031 +
9032 + is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0;
9033 +
9034 +#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
9035 + {
9036 + struct dsi_clock_info cinfo;
9037 + r = dsi_pll_calc_pck(is_tft, timings->pixel_clock * 1000,
9038 + &cinfo);
9039 +
9040 + if (r)
9041 + return r;
9042 +
9043 + fck = cinfo.dsi1_pll_fclk;
9044 + lck_div = cinfo.lck_div;
9045 + pck_div = cinfo.pck_div;
9046 + }
9047 +#else
9048 + {
9049 + struct dispc_clock_info cinfo;
9050 + r = dispc_calc_clock_div(is_tft, timings->pixel_clock * 1000,
9051 + &cinfo);
9052 +
9053 + if (r)
9054 + return r;
9055 +
9056 + fck = cinfo.fck;
9057 + lck_div = cinfo.lck_div;
9058 + pck_div = cinfo.pck_div;
9059 + }
9060 +#endif
9061 +
9062 + pck = fck / lck_div / pck_div / 1000;
9063 +
9064 + timings->pixel_clock = pck;
9065 +
9066 + return 0;
9067 +}
9068 +
9069 +static void dpi_get_timings(struct omap_dss_device *dssdev,
9070 + struct omap_video_timings *timings)
9071 +{
9072 + *timings = dssdev->panel.timings;
9073 +}
9074 +
9075 +static int dpi_display_set_update_mode(struct omap_dss_device *dssdev,
9076 + enum omap_dss_update_mode mode)
9077 +{
9078 + if (mode == OMAP_DSS_UPDATE_MANUAL)
9079 + return -EINVAL;
9080 +
9081 + if (mode == OMAP_DSS_UPDATE_DISABLED) {
9082 + dispc_enable_lcd_out(0);
9083 + dpi.update_enabled = 0;
9084 + } else {
9085 + dispc_enable_lcd_out(1);
9086 + dpi.update_enabled = 1;
9087 + }
9088 +
9089 + return 0;
9090 +}
9091 +
9092 +static enum omap_dss_update_mode dpi_display_get_update_mode(
9093 + struct omap_dss_device *dssdev)
9094 +{
9095 + return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
9096 + OMAP_DSS_UPDATE_DISABLED;
9097 +}
9098 +
9099 +int dpi_init_display(struct omap_dss_device *dssdev)
9100 +{
9101 + DSSDBG("init_display\n");
9102 +
9103 + dssdev->enable = dpi_display_enable;
9104 + dssdev->disable = dpi_display_disable;
9105 + dssdev->suspend = dpi_display_suspend;
9106 + dssdev->resume = dpi_display_resume;
9107 + dssdev->set_timings = dpi_set_timings;
9108 + dssdev->check_timings = dpi_check_timings;
9109 + dssdev->get_timings = dpi_get_timings;
9110 + dssdev->set_update_mode = dpi_display_set_update_mode;
9111 + dssdev->get_update_mode = dpi_display_get_update_mode;
9112 +
9113 + return 0;
9114 +}
9115 +
9116 +int dpi_init(void)
9117 +{
9118 + return 0;
9119 +}
9120 +
9121 +void dpi_exit(void)
9122 +{
9123 +}
9124 +
9125 --- /dev/null
9126 +++ b/drivers/video/omap2/dss/dsi.c
9127 @@ -0,0 +1,3509 @@
9128 +/*
9129 + * linux/drivers/video/omap2/dss/dsi.c
9130 + *
9131 + * Copyright (C) 2009 Nokia Corporation
9132 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
9133 + *
9134 + * This program is free software; you can redistribute it and/or modify it
9135 + * under the terms of the GNU General Public License version 2 as published by
9136 + * the Free Software Foundation.
9137 + *
9138 + * This program is distributed in the hope that it will be useful, but WITHOUT
9139 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
9140 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
9141 + * more details.
9142 + *
9143 + * You should have received a copy of the GNU General Public License along with
9144 + * this program. If not, see <http://www.gnu.org/licenses/>.
9145 + */
9146 +
9147 +#define DSS_SUBSYS_NAME "DSI"
9148 +
9149 +#include <linux/kernel.h>
9150 +#include <linux/io.h>
9151 +#include <linux/clk.h>
9152 +#include <linux/device.h>
9153 +#include <linux/err.h>
9154 +#include <linux/interrupt.h>
9155 +#include <linux/delay.h>
9156 +#include <linux/mutex.h>
9157 +#include <linux/seq_file.h>
9158 +#include <linux/platform_device.h>
9159 +#include <linux/regulator/consumer.h>
9160 +#include <linux/kthread.h>
9161 +#include <linux/wait.h>
9162 +
9163 +#include <mach/board.h>
9164 +#include <mach/display.h>
9165 +#include <mach/clock.h>
9166 +
9167 +#include "dss.h"
9168 +
9169 +/*#define VERBOSE_IRQ*/
9170 +
9171 +#define DSI_BASE 0x4804FC00
9172 +
9173 +struct dsi_reg { u16 idx; };
9174 +
9175 +#define DSI_REG(idx) ((const struct dsi_reg) { idx })
9176 +
9177 +#define DSI_SZ_REGS SZ_1K
9178 +/* DSI Protocol Engine */
9179 +
9180 +#define DSI_REVISION DSI_REG(0x0000)
9181 +#define DSI_SYSCONFIG DSI_REG(0x0010)
9182 +#define DSI_SYSSTATUS DSI_REG(0x0014)
9183 +#define DSI_IRQSTATUS DSI_REG(0x0018)
9184 +#define DSI_IRQENABLE DSI_REG(0x001C)
9185 +#define DSI_CTRL DSI_REG(0x0040)
9186 +#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048)
9187 +#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C)
9188 +#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050)
9189 +#define DSI_CLK_CTRL DSI_REG(0x0054)
9190 +#define DSI_TIMING1 DSI_REG(0x0058)
9191 +#define DSI_TIMING2 DSI_REG(0x005C)
9192 +#define DSI_VM_TIMING1 DSI_REG(0x0060)
9193 +#define DSI_VM_TIMING2 DSI_REG(0x0064)
9194 +#define DSI_VM_TIMING3 DSI_REG(0x0068)
9195 +#define DSI_CLK_TIMING DSI_REG(0x006C)
9196 +#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070)
9197 +#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074)
9198 +#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078)
9199 +#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C)
9200 +#define DSI_VM_TIMING4 DSI_REG(0x0080)
9201 +#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084)
9202 +#define DSI_VM_TIMING5 DSI_REG(0x0088)
9203 +#define DSI_VM_TIMING6 DSI_REG(0x008C)
9204 +#define DSI_VM_TIMING7 DSI_REG(0x0090)
9205 +#define DSI_STOPCLK_TIMING DSI_REG(0x0094)
9206 +#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20))
9207 +#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20))
9208 +#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20))
9209 +#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20))
9210 +#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20))
9211 +#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20))
9212 +#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20))
9213 +
9214 +/* DSIPHY_SCP */
9215 +
9216 +#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000)
9217 +#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004)
9218 +#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008)
9219 +#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014)
9220 +
9221 +/* DSI_PLL_CTRL_SCP */
9222 +
9223 +#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000)
9224 +#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004)
9225 +#define DSI_PLL_GO DSI_REG(0x300 + 0x0008)
9226 +#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C)
9227 +#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010)
9228 +
9229 +#define REG_GET(idx, start, end) \
9230 + FLD_GET(dsi_read_reg(idx), start, end)
9231 +
9232 +#define REG_FLD_MOD(idx, val, start, end) \
9233 + dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end))
9234 +
9235 +/* Global interrupts */
9236 +#define DSI_IRQ_VC0 (1 << 0)
9237 +#define DSI_IRQ_VC1 (1 << 1)
9238 +#define DSI_IRQ_VC2 (1 << 2)
9239 +#define DSI_IRQ_VC3 (1 << 3)
9240 +#define DSI_IRQ_WAKEUP (1 << 4)
9241 +#define DSI_IRQ_RESYNC (1 << 5)
9242 +#define DSI_IRQ_PLL_LOCK (1 << 7)
9243 +#define DSI_IRQ_PLL_UNLOCK (1 << 8)
9244 +#define DSI_IRQ_PLL_RECALL (1 << 9)
9245 +#define DSI_IRQ_COMPLEXIO_ERR (1 << 10)
9246 +#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14)
9247 +#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15)
9248 +#define DSI_IRQ_TE_TRIGGER (1 << 16)
9249 +#define DSI_IRQ_ACK_TRIGGER (1 << 17)
9250 +#define DSI_IRQ_SYNC_LOST (1 << 18)
9251 +#define DSI_IRQ_LDO_POWER_GOOD (1 << 19)
9252 +#define DSI_IRQ_TA_TIMEOUT (1 << 20)
9253 +#define DSI_IRQ_ERROR_MASK \
9254 + (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
9255 + DSI_IRQ_TA_TIMEOUT)
9256 +#define DSI_IRQ_CHANNEL_MASK 0xf
9257 +
9258 +/* Virtual channel interrupts */
9259 +#define DSI_VC_IRQ_CS (1 << 0)
9260 +#define DSI_VC_IRQ_ECC_CORR (1 << 1)
9261 +#define DSI_VC_IRQ_PACKET_SENT (1 << 2)
9262 +#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3)
9263 +#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4)
9264 +#define DSI_VC_IRQ_BTA (1 << 5)
9265 +#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6)
9266 +#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7)
9267 +#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8)
9268 +#define DSI_VC_IRQ_ERROR_MASK \
9269 + (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \
9270 + DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \
9271 + DSI_VC_IRQ_FIFO_TX_UDF)
9272 +
9273 +/* ComplexIO interrupts */
9274 +#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0)
9275 +#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1)
9276 +#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2)
9277 +#define DSI_CIO_IRQ_ERRESC1 (1 << 5)
9278 +#define DSI_CIO_IRQ_ERRESC2 (1 << 6)
9279 +#define DSI_CIO_IRQ_ERRESC3 (1 << 7)
9280 +#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10)
9281 +#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11)
9282 +#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12)
9283 +#define DSI_CIO_IRQ_STATEULPS1 (1 << 15)
9284 +#define DSI_CIO_IRQ_STATEULPS2 (1 << 16)
9285 +#define DSI_CIO_IRQ_STATEULPS3 (1 << 17)
9286 +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20)
9287 +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21)
9288 +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22)
9289 +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23)
9290 +#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24)
9291 +#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25)
9292 +#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30)
9293 +#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31)
9294 +
9295 +#define DSI_DT_DCS_SHORT_WRITE_0 0x05
9296 +#define DSI_DT_DCS_SHORT_WRITE_1 0x15
9297 +#define DSI_DT_DCS_READ 0x06
9298 +#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37
9299 +#define DSI_DT_NULL_PACKET 0x09
9300 +#define DSI_DT_DCS_LONG_WRITE 0x39
9301 +
9302 +#define DSI_DT_RX_ACK_WITH_ERR 0x02
9303 +#define DSI_DT_RX_DCS_LONG_READ 0x1c
9304 +#define DSI_DT_RX_SHORT_READ_1 0x21
9305 +#define DSI_DT_RX_SHORT_READ_2 0x22
9306 +
9307 +#define FINT_MAX 2100000
9308 +#define FINT_MIN 750000
9309 +#define REGN_MAX (1 << 7)
9310 +#define REGM_MAX ((1 << 11) - 1)
9311 +#define REGM3_MAX (1 << 4)
9312 +#define REGM4_MAX (1 << 4)
9313 +
9314 +enum fifo_size {
9315 + DSI_FIFO_SIZE_0 = 0,
9316 + DSI_FIFO_SIZE_32 = 1,
9317 + DSI_FIFO_SIZE_64 = 2,
9318 + DSI_FIFO_SIZE_96 = 3,
9319 + DSI_FIFO_SIZE_128 = 4,
9320 +};
9321 +
9322 +enum dsi_vc_mode {
9323 + DSI_VC_MODE_L4 = 0,
9324 + DSI_VC_MODE_VP,
9325 +};
9326 +
9327 +struct dsi_update_region {
9328 + bool dirty;
9329 + u16 x, y, w, h;
9330 + struct omap_dss_device *device;
9331 +};
9332 +
9333 +static struct
9334 +{
9335 + void __iomem *base;
9336 +
9337 + unsigned long dsi1_pll_fclk; /* Hz */
9338 + unsigned long dsi2_pll_fclk; /* Hz */
9339 + unsigned long dsiphy; /* Hz */
9340 + unsigned long ddr_clk; /* Hz */
9341 +
9342 + struct regulator *vdds_dsi_reg;
9343 +
9344 + struct {
9345 + enum dsi_vc_mode mode;
9346 + struct omap_dss_device *dssdev;
9347 + enum fifo_size fifo_size;
9348 + int dest_per; /* destination peripheral 0-3 */
9349 + } vc[4];
9350 +
9351 + struct mutex lock;
9352 + struct mutex bus_lock;
9353 +
9354 + unsigned pll_locked;
9355 +
9356 + struct completion bta_completion;
9357 +
9358 + struct task_struct *thread;
9359 + wait_queue_head_t waitqueue;
9360 +
9361 + spinlock_t update_lock;
9362 + bool framedone_received;
9363 + struct dsi_update_region update_region;
9364 + struct dsi_update_region active_update_region;
9365 + struct completion update_completion;
9366 +
9367 + enum omap_dss_update_mode user_update_mode;
9368 + enum omap_dss_update_mode update_mode;
9369 + bool te_enabled;
9370 + bool use_ext_te;
9371 +
9372 + unsigned long cache_req_pck;
9373 + unsigned long cache_clk_freq;
9374 + struct dsi_clock_info cache_cinfo;
9375 +
9376 + u32 errors;
9377 + spinlock_t errors_lock;
9378 +#ifdef DEBUG
9379 + ktime_t perf_setup_time;
9380 + ktime_t perf_start_time;
9381 + ktime_t perf_start_time_auto;
9382 + int perf_measure_frames;
9383 +#endif
9384 + int debug_read;
9385 + int debug_write;
9386 +} dsi;
9387 +
9388 +#ifdef DEBUG
9389 +static unsigned int dsi_perf;
9390 +module_param_named(dsi_perf, dsi_perf, bool, 0644);
9391 +#endif
9392 +
9393 +static inline void dsi_write_reg(const struct dsi_reg idx, u32 val)
9394 +{
9395 + __raw_writel(val, dsi.base + idx.idx);
9396 +}
9397 +
9398 +static inline u32 dsi_read_reg(const struct dsi_reg idx)
9399 +{
9400 + return __raw_readl(dsi.base + idx.idx);
9401 +}
9402 +
9403 +
9404 +void dsi_save_context(void)
9405 +{
9406 +}
9407 +
9408 +void dsi_restore_context(void)
9409 +{
9410 +}
9411 +
9412 +void dsi_bus_lock(void)
9413 +{
9414 + mutex_lock(&dsi.bus_lock);
9415 +}
9416 +EXPORT_SYMBOL(dsi_bus_lock);
9417 +
9418 +void dsi_bus_unlock(void)
9419 +{
9420 + mutex_unlock(&dsi.bus_lock);
9421 +}
9422 +EXPORT_SYMBOL(dsi_bus_unlock);
9423 +
9424 +static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum,
9425 + int value)
9426 +{
9427 + int t = 100000;
9428 +
9429 + while (REG_GET(idx, bitnum, bitnum) != value) {
9430 + if (--t == 0)
9431 + return !value;
9432 + }
9433 +
9434 + return value;
9435 +}
9436 +
9437 +#ifdef DEBUG
9438 +static void dsi_perf_mark_setup(void)
9439 +{
9440 + dsi.perf_setup_time = ktime_get();
9441 +}
9442 +
9443 +static void dsi_perf_mark_start(void)
9444 +{
9445 + dsi.perf_start_time = ktime_get();
9446 +}
9447 +
9448 +static void dsi_perf_mark_start_auto(void)
9449 +{
9450 + dsi.perf_measure_frames = 0;
9451 + dsi.perf_start_time_auto = ktime_get();
9452 +}
9453 +
9454 +static void dsi_perf_show(const char *name)
9455 +{
9456 + ktime_t t, setup_time, trans_time;
9457 + u32 total_bytes;
9458 + u32 setup_us, trans_us, total_us;
9459 +
9460 + if (!dsi_perf)
9461 + return;
9462 +
9463 + if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
9464 + return;
9465 +
9466 + t = ktime_get();
9467 +
9468 + setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time);
9469 + setup_us = (u32)ktime_to_us(setup_time);
9470 + if (setup_us == 0)
9471 + setup_us = 1;
9472 +
9473 + trans_time = ktime_sub(t, dsi.perf_start_time);
9474 + trans_us = (u32)ktime_to_us(trans_time);
9475 + if (trans_us == 0)
9476 + trans_us = 1;
9477 +
9478 + total_us = setup_us + trans_us;
9479 +
9480 + total_bytes = dsi.active_update_region.w *
9481 + dsi.active_update_region.h *
9482 + dsi.active_update_region.device->ctrl.pixel_size / 8;
9483 +
9484 + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
9485 + static u32 s_total_trans_us, s_total_setup_us;
9486 + static u32 s_min_trans_us = 0xffffffff, s_min_setup_us;
9487 + static u32 s_max_trans_us, s_max_setup_us;
9488 + const int numframes = 100;
9489 + ktime_t total_time_auto;
9490 + u32 total_time_auto_us;
9491 +
9492 + dsi.perf_measure_frames++;
9493 +
9494 + if (setup_us < s_min_setup_us)
9495 + s_min_setup_us = setup_us;
9496 +
9497 + if (setup_us > s_max_setup_us)
9498 + s_max_setup_us = setup_us;
9499 +
9500 + s_total_setup_us += setup_us;
9501 +
9502 + if (trans_us < s_min_trans_us)
9503 + s_min_trans_us = trans_us;
9504 +
9505 + if (trans_us > s_max_trans_us)
9506 + s_max_trans_us = trans_us;
9507 +
9508 + s_total_trans_us += trans_us;
9509 +
9510 + if (dsi.perf_measure_frames < numframes)
9511 + return;
9512 +
9513 + total_time_auto = ktime_sub(t, dsi.perf_start_time_auto);
9514 + total_time_auto_us = (u32)ktime_to_us(total_time_auto);
9515 +
9516 + printk(KERN_INFO "DSI(%s): %u fps, setup %u/%u/%u, "
9517 + "trans %u/%u/%u\n",
9518 + name,
9519 + 1000 * 1000 * numframes / total_time_auto_us,
9520 + s_min_setup_us,
9521 + s_max_setup_us,
9522 + s_total_setup_us / numframes,
9523 + s_min_trans_us,
9524 + s_max_trans_us,
9525 + s_total_trans_us / numframes);
9526 +
9527 + s_total_setup_us = 0;
9528 + s_min_setup_us = 0xffffffff;
9529 + s_max_setup_us = 0;
9530 + s_total_trans_us = 0;
9531 + s_min_trans_us = 0xffffffff;
9532 + s_max_trans_us = 0;
9533 + dsi_perf_mark_start_auto();
9534 + } else {
9535 + printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), "
9536 + "%u bytes, %u kbytes/sec\n",
9537 + name,
9538 + setup_us,
9539 + trans_us,
9540 + total_us,
9541 + 1000*1000 / total_us,
9542 + total_bytes,
9543 + total_bytes * 1000 / total_us);
9544 + }
9545 +}
9546 +#else
9547 +#define dsi_perf_mark_setup()
9548 +#define dsi_perf_mark_start()
9549 +#define dsi_perf_mark_start_auto()
9550 +#define dsi_perf_show(x)
9551 +#endif
9552 +
9553 +static void print_irq_status(u32 status)
9554 +{
9555 +#ifndef VERBOSE_IRQ
9556 + if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0)
9557 + return;
9558 +#endif
9559 + printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status);
9560 +
9561 +#define PIS(x) \
9562 + if (status & DSI_IRQ_##x) \
9563 + printk(#x " ");
9564 +#ifdef VERBOSE_IRQ
9565 + PIS(VC0);
9566 + PIS(VC1);
9567 + PIS(VC2);
9568 + PIS(VC3);
9569 +#endif
9570 + PIS(WAKEUP);
9571 + PIS(RESYNC);
9572 + PIS(PLL_LOCK);
9573 + PIS(PLL_UNLOCK);
9574 + PIS(PLL_RECALL);
9575 + PIS(COMPLEXIO_ERR);
9576 + PIS(HS_TX_TIMEOUT);
9577 + PIS(LP_RX_TIMEOUT);
9578 + PIS(TE_TRIGGER);
9579 + PIS(ACK_TRIGGER);
9580 + PIS(SYNC_LOST);
9581 + PIS(LDO_POWER_GOOD);
9582 + PIS(TA_TIMEOUT);
9583 +#undef PIS
9584 +
9585 + printk("\n");
9586 +}
9587 +
9588 +static void print_irq_status_vc(int channel, u32 status)
9589 +{
9590 +#ifndef VERBOSE_IRQ
9591 + if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
9592 + return;
9593 +#endif
9594 + printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status);
9595 +
9596 +#define PIS(x) \
9597 + if (status & DSI_VC_IRQ_##x) \
9598 + printk(#x " ");
9599 + PIS(CS);
9600 + PIS(ECC_CORR);
9601 +#ifdef VERBOSE_IRQ
9602 + PIS(PACKET_SENT);
9603 +#endif
9604 + PIS(FIFO_TX_OVF);
9605 + PIS(FIFO_RX_OVF);
9606 + PIS(BTA);
9607 + PIS(ECC_NO_CORR);
9608 + PIS(FIFO_TX_UDF);
9609 + PIS(PP_BUSY_CHANGE);
9610 +#undef PIS
9611 + printk("\n");
9612 +}
9613 +
9614 +static void print_irq_status_cio(u32 status)
9615 +{
9616 + printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status);
9617 +
9618 +#define PIS(x) \
9619 + if (status & DSI_CIO_IRQ_##x) \
9620 + printk(#x " ");
9621 + PIS(ERRSYNCESC1);
9622 + PIS(ERRSYNCESC2);
9623 + PIS(ERRSYNCESC3);
9624 + PIS(ERRESC1);
9625 + PIS(ERRESC2);
9626 + PIS(ERRESC3);
9627 + PIS(ERRCONTROL1);
9628 + PIS(ERRCONTROL2);
9629 + PIS(ERRCONTROL3);
9630 + PIS(STATEULPS1);
9631 + PIS(STATEULPS2);
9632 + PIS(STATEULPS3);
9633 + PIS(ERRCONTENTIONLP0_1);
9634 + PIS(ERRCONTENTIONLP1_1);
9635 + PIS(ERRCONTENTIONLP0_2);
9636 + PIS(ERRCONTENTIONLP1_2);
9637 + PIS(ERRCONTENTIONLP0_3);
9638 + PIS(ERRCONTENTIONLP1_3);
9639 + PIS(ULPSACTIVENOT_ALL0);
9640 + PIS(ULPSACTIVENOT_ALL1);
9641 +#undef PIS
9642 +
9643 + printk("\n");
9644 +}
9645 +
9646 +static int debug_irq;
9647 +
9648 +/* called from dss */
9649 +void dsi_irq_handler(void)
9650 +{
9651 + u32 irqstatus, vcstatus, ciostatus;
9652 + int i;
9653 +
9654 + irqstatus = dsi_read_reg(DSI_IRQSTATUS);
9655 +
9656 + if (irqstatus & DSI_IRQ_ERROR_MASK) {
9657 + DSSERR("DSI error, irqstatus %x\n", irqstatus);
9658 + print_irq_status(irqstatus);
9659 + spin_lock(&dsi.errors_lock);
9660 + dsi.errors |= irqstatus & DSI_IRQ_ERROR_MASK;
9661 + spin_unlock(&dsi.errors_lock);
9662 + } else if (debug_irq) {
9663 + print_irq_status(irqstatus);
9664 + }
9665 +
9666 + for (i = 0; i < 4; ++i) {
9667 + if ((irqstatus & (1<<i)) == 0)
9668 + continue;
9669 +
9670 + vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i));
9671 +
9672 + if (vcstatus & DSI_VC_IRQ_BTA)
9673 + complete(&dsi.bta_completion);
9674 +
9675 + if (vcstatus & DSI_VC_IRQ_ERROR_MASK) {
9676 + DSSERR("DSI VC(%d) error, vc irqstatus %x\n",
9677 + i, vcstatus);
9678 + print_irq_status_vc(i, vcstatus);
9679 + } else if (debug_irq) {
9680 + print_irq_status_vc(i, vcstatus);
9681 + }
9682 +
9683 + dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus);
9684 + }
9685 +
9686 + if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) {
9687 + ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
9688 +
9689 + dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus);
9690 +
9691 + DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
9692 + print_irq_status_cio(ciostatus);
9693 + }
9694 +
9695 + dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK);
9696 +}
9697 +
9698 +
9699 +static void _dsi_initialize_irq(void)
9700 +{
9701 + u32 l;
9702 + int i;
9703 +
9704 + /* disable all interrupts */
9705 + dsi_write_reg(DSI_IRQENABLE, 0);
9706 + for (i = 0; i < 4; ++i)
9707 + dsi_write_reg(DSI_VC_IRQENABLE(i), 0);
9708 + dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0);
9709 +
9710 + /* clear interrupt status */
9711 + l = dsi_read_reg(DSI_IRQSTATUS);
9712 + dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK);
9713 +
9714 + for (i = 0; i < 4; ++i) {
9715 + l = dsi_read_reg(DSI_VC_IRQSTATUS(i));
9716 + dsi_write_reg(DSI_VC_IRQSTATUS(i), l);
9717 + }
9718 +
9719 + l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
9720 + dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l);
9721 +
9722 + /* enable error irqs */
9723 + l = DSI_IRQ_ERROR_MASK;
9724 + dsi_write_reg(DSI_IRQENABLE, l);
9725 +
9726 + l = DSI_VC_IRQ_ERROR_MASK;
9727 + for (i = 0; i < 4; ++i)
9728 + dsi_write_reg(DSI_VC_IRQENABLE(i), l);
9729 +
9730 + /* XXX zonda responds incorrectly, causing control error:
9731 + Exit from LP-ESC mode to LP11 uses wrong transition states on the
9732 + data lines LP0 and LN0. */
9733 + dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE,
9734 + -1 & (~DSI_CIO_IRQ_ERRCONTROL2));
9735 +}
9736 +
9737 +static u32 dsi_get_errors(void)
9738 +{
9739 + unsigned long flags;
9740 + u32 e;
9741 + spin_lock_irqsave(&dsi.errors_lock, flags);
9742 + e = dsi.errors;
9743 + dsi.errors = 0;
9744 + spin_unlock_irqrestore(&dsi.errors_lock, flags);
9745 + return e;
9746 +}
9747 +
9748 +static void dsi_vc_enable_bta_irq(int channel)
9749 +{
9750 + u32 l;
9751 +
9752 + dsi_write_reg(DSI_VC_IRQSTATUS(channel), DSI_VC_IRQ_BTA);
9753 +
9754 + l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
9755 + l |= DSI_VC_IRQ_BTA;
9756 + dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
9757 +}
9758 +
9759 +static void dsi_vc_disable_bta_irq(int channel)
9760 +{
9761 + u32 l;
9762 +
9763 + l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
9764 + l &= ~DSI_VC_IRQ_BTA;
9765 + dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
9766 +}
9767 +
9768 +/* DSI func clock. this could also be DSI2_PLL_FCLK */
9769 +static inline void enable_clocks(bool enable)
9770 +{
9771 + if (enable)
9772 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
9773 + else
9774 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
9775 +}
9776 +
9777 +/* source clock for DSI PLL. this could also be PCLKFREE */
9778 +static inline void dsi_enable_pll_clock(bool enable)
9779 +{
9780 + if (enable)
9781 + dss_clk_enable(DSS_CLK_FCK2);
9782 + else
9783 + dss_clk_disable(DSS_CLK_FCK2);
9784 +
9785 + if (enable && dsi.pll_locked) {
9786 + if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1)
9787 + DSSERR("cannot lock PLL when enabling clocks\n");
9788 + }
9789 +}
9790 +
9791 +#ifdef DEBUG
9792 +static void _dsi_print_reset_status(void)
9793 +{
9794 + u32 l;
9795 +
9796 + if (!dss_debug)
9797 + return;
9798 +
9799 + /* A dummy read using the SCP interface to any DSIPHY register is
9800 + * required after DSIPHY reset to complete the reset of the DSI complex
9801 + * I/O. */
9802 + l = dsi_read_reg(DSI_DSIPHY_CFG5);
9803 +
9804 + printk(KERN_DEBUG "DSI resets: ");
9805 +
9806 + l = dsi_read_reg(DSI_PLL_STATUS);
9807 + printk("PLL (%d) ", FLD_GET(l, 0, 0));
9808 +
9809 + l = dsi_read_reg(DSI_COMPLEXIO_CFG1);
9810 + printk("CIO (%d) ", FLD_GET(l, 29, 29));
9811 +
9812 + l = dsi_read_reg(DSI_DSIPHY_CFG5);
9813 + printk("PHY (%x, %d, %d, %d)\n",
9814 + FLD_GET(l, 28, 26),
9815 + FLD_GET(l, 29, 29),
9816 + FLD_GET(l, 30, 30),
9817 + FLD_GET(l, 31, 31));
9818 +}
9819 +#else
9820 +#define _dsi_print_reset_status()
9821 +#endif
9822 +
9823 +static inline int dsi_if_enable(bool enable)
9824 +{
9825 + DSSDBG("dsi_if_enable(%d)\n", enable);
9826 +
9827 + enable = enable ? 1 : 0;
9828 + REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */
9829 +
9830 + if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) {
9831 + DSSERR("Failed to set dsi_if_enable to %d\n", enable);
9832 + return -EIO;
9833 + }
9834 +
9835 + return 0;
9836 +}
9837 +
9838 +static unsigned long dsi_fclk_rate(void)
9839 +{
9840 + unsigned long r;
9841 +
9842 + if (dss_get_dsi_clk_source() == 0) {
9843 + /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */
9844 + r = dss_clk_get_rate(DSS_CLK_FCK1);
9845 + } else {
9846 + /* DSI FCLK source is DSI2_PLL_FCLK */
9847 + r = dsi.dsi2_pll_fclk;
9848 + }
9849 +
9850 + return r;
9851 +}
9852 +
9853 +static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev)
9854 +{
9855 + unsigned n;
9856 + unsigned long dsi_fclk;
9857 + unsigned long lp_clk, lp_clk_req;
9858 +
9859 + dsi_fclk = dsi_fclk_rate();
9860 +
9861 + lp_clk_req = dssdev->phy.dsi.lp_clk_hz;
9862 +
9863 + for (n = 1; n < (1 << 13) - 1; ++n) {
9864 + lp_clk = dsi_fclk / 2 / n;
9865 + if (lp_clk <= lp_clk_req)
9866 + break;
9867 + }
9868 +
9869 + if (n == (1 << 13) - 1) {
9870 + DSSERR("Failed to find LP_CLK_DIVISOR\n");
9871 + return -EINVAL;
9872 + }
9873 +
9874 + DSSDBG("LP_CLK_DIV %u, LP_CLK %lu (req %lu)\n", n, lp_clk, lp_clk_req);
9875 +
9876 + REG_FLD_MOD(DSI_CLK_CTRL, n, 12, 0); /* LP_CLK_DIVISOR */
9877 + if (dsi_fclk > 30*1000*1000)
9878 + REG_FLD_MOD(DSI_CLK_CTRL, 1, 21, 21); /* LP_RX_SYNCHRO_ENABLE */
9879 +
9880 + return 0;
9881 +}
9882 +
9883 +
9884 +enum dsi_pll_power_state {
9885 + DSI_PLL_POWER_OFF = 0x0,
9886 + DSI_PLL_POWER_ON_HSCLK = 0x1,
9887 + DSI_PLL_POWER_ON_ALL = 0x2,
9888 + DSI_PLL_POWER_ON_DIV = 0x3,
9889 +};
9890 +
9891 +static int dsi_pll_power(enum dsi_pll_power_state state)
9892 +{
9893 + int t = 0;
9894 +
9895 + REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */
9896 +
9897 + /* PLL_PWR_STATUS */
9898 + while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) {
9899 + udelay(1);
9900 + if (t++ > 1000) {
9901 + DSSERR("Failed to set DSI PLL power mode to %d\n",
9902 + state);
9903 + return -ENODEV;
9904 + }
9905 + }
9906 +
9907 + return 0;
9908 +}
9909 +
9910 +int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck,
9911 + struct dsi_clock_info *cinfo)
9912 +{
9913 + struct dsi_clock_info cur, best;
9914 + int min_fck_per_pck;
9915 + int match = 0;
9916 + unsigned long dss_clk_fck2;
9917 +
9918 + dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2);
9919 +
9920 + if (req_pck == dsi.cache_req_pck &&
9921 + dsi.cache_cinfo.clkin == dss_clk_fck2) {
9922 + DSSDBG("DSI clock info found from cache\n");
9923 + *cinfo = dsi.cache_cinfo;
9924 + return 0;
9925 + }
9926 +
9927 + min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
9928 +
9929 + if (min_fck_per_pck &&
9930 + req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
9931 + DSSERR("Requested pixel clock not possible with the current "
9932 + "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
9933 + "the constraint off.\n");
9934 + min_fck_per_pck = 0;
9935 + }
9936 +
9937 + DSSDBG("dsi_pll_calc\n");
9938 +
9939 +retry:
9940 + memset(&best, 0, sizeof(best));
9941 +
9942 + memset(&cur, 0, sizeof(cur));
9943 + cur.clkin = dss_clk_fck2;
9944 + cur.use_dss2_fck = 1;
9945 + cur.highfreq = 0;
9946 +
9947 + /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
9948 + /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
9949 + /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
9950 + for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
9951 + if (cur.highfreq == 0)
9952 + cur.fint = cur.clkin / cur.regn;
9953 + else
9954 + cur.fint = cur.clkin / (2 * cur.regn);
9955 +
9956 + if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
9957 + continue;
9958 +
9959 + /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
9960 + for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
9961 + unsigned long a, b;
9962 +
9963 + a = 2 * cur.regm * (cur.clkin/1000);
9964 + b = cur.regn * (cur.highfreq + 1);
9965 + cur.dsiphy = a / b * 1000;
9966 +
9967 + if (cur.dsiphy > 1800 * 1000 * 1000)
9968 + break;
9969 +
9970 + /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */
9971 + for (cur.regm3 = 1; cur.regm3 < REGM3_MAX;
9972 + ++cur.regm3) {
9973 + cur.dsi1_pll_fclk = cur.dsiphy / cur.regm3;
9974 +
9975 + /* this will narrow down the search a bit,
9976 + * but still give pixclocks below what was
9977 + * requested */
9978 + if (cur.dsi1_pll_fclk < req_pck)
9979 + break;
9980 +
9981 + if (cur.dsi1_pll_fclk > DISPC_MAX_FCK)
9982 + continue;
9983 +
9984 + if (min_fck_per_pck &&
9985 + cur.dsi1_pll_fclk <
9986 + req_pck * min_fck_per_pck)
9987 + continue;
9988 +
9989 + match = 1;
9990 +
9991 + find_lck_pck_divs(is_tft, req_pck,
9992 + cur.dsi1_pll_fclk,
9993 + &cur.lck_div,
9994 + &cur.pck_div);
9995 +
9996 + cur.lck = cur.dsi1_pll_fclk / cur.lck_div;
9997 + cur.pck = cur.lck / cur.pck_div;
9998 +
9999 + if (abs(cur.pck - req_pck) <
10000 + abs(best.pck - req_pck)) {
10001 + best = cur;
10002 +
10003 + if (cur.pck == req_pck)
10004 + goto found;
10005 + }
10006 + }
10007 + }
10008 + }
10009 +found:
10010 + if (!match) {
10011 + if (min_fck_per_pck) {
10012 + DSSERR("Could not find suitable clock settings.\n"
10013 + "Turning FCK/PCK constraint off and"
10014 + "trying again.\n");
10015 + min_fck_per_pck = 0;
10016 + goto retry;
10017 + }
10018 +
10019 + DSSERR("Could not find suitable clock settings.\n");
10020 +
10021 + return -EINVAL;
10022 + }
10023 +
10024 + /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */
10025 + best.regm4 = best.dsiphy / 48000000;
10026 + if (best.regm4 > REGM4_MAX)
10027 + best.regm4 = REGM4_MAX;
10028 + else if (best.regm4 == 0)
10029 + best.regm4 = 1;
10030 + best.dsi2_pll_fclk = best.dsiphy / best.regm4;
10031 +
10032 + if (cinfo)
10033 + *cinfo = best;
10034 +
10035 + dsi.cache_req_pck = req_pck;
10036 + dsi.cache_clk_freq = 0;
10037 + dsi.cache_cinfo = best;
10038 +
10039 + return 0;
10040 +}
10041 +
10042 +static int dsi_pll_calc_ddrfreq(unsigned long clk_freq,
10043 + struct dsi_clock_info *cinfo)
10044 +{
10045 + struct dsi_clock_info cur, best;
10046 + const bool use_dss2_fck = 1;
10047 + unsigned long datafreq;
10048 + unsigned long dss_clk_fck2;
10049 +
10050 + DSSDBG("dsi_pll_calc_ddrfreq\n");
10051 +
10052 + dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2);
10053 +
10054 + if (clk_freq == dsi.cache_clk_freq &&
10055 + dsi.cache_cinfo.clkin == dss_clk_fck2) {
10056 + DSSDBG("DSI clock info found from cache\n");
10057 + *cinfo = dsi.cache_cinfo;
10058 + return 0;
10059 + }
10060 +
10061 + datafreq = clk_freq * 4;
10062 +
10063 + memset(&best, 0, sizeof(best));
10064 +
10065 + memset(&cur, 0, sizeof(cur));
10066 + cur.use_dss2_fck = use_dss2_fck;
10067 + if (use_dss2_fck) {
10068 + cur.clkin = dss_clk_fck2;
10069 + cur.highfreq = 0;
10070 + } else {
10071 + cur.clkin = dispc_pclk_rate();
10072 + if (cur.clkin < 32000000)
10073 + cur.highfreq = 0;
10074 + else
10075 + cur.highfreq = 1;
10076 + }
10077 +
10078 + /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
10079 + /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
10080 + /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
10081 + for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
10082 + if (cur.highfreq == 0)
10083 + cur.fint = cur.clkin / cur.regn;
10084 + else
10085 + cur.fint = cur.clkin / (2 * cur.regn);
10086 +
10087 + if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
10088 + continue;
10089 +
10090 + /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
10091 + for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
10092 + unsigned long a, b;
10093 +
10094 + a = 2 * cur.regm * (cur.clkin/1000);
10095 + b = cur.regn * (cur.highfreq + 1);
10096 + cur.dsiphy = a / b * 1000;
10097 +
10098 + if (cur.dsiphy > 1800 * 1000 * 1000)
10099 + break;
10100 +
10101 + if (abs(cur.dsiphy - datafreq) <
10102 + abs(best.dsiphy - datafreq)) {
10103 + best = cur;
10104 + /* DSSDBG("best %ld\n", best.dsiphy); */
10105 + }
10106 +
10107 + if (cur.dsiphy == datafreq)
10108 + goto found;
10109 + }
10110 + }
10111 +found:
10112 + /* DSI1_PLL_FCLK (regm3) is not used. Set it to something sane. */
10113 + best.regm3 = best.dsiphy / 48000000;
10114 + if (best.regm3 > REGM3_MAX)
10115 + best.regm3 = REGM3_MAX;
10116 + else if (best.regm3 == 0)
10117 + best.regm3 = 1;
10118 + best.dsi1_pll_fclk = best.dsiphy / best.regm3;
10119 +
10120 + /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */
10121 + best.regm4 = best.dsiphy / 48000000;
10122 + if (best.regm4 > REGM4_MAX)
10123 + best.regm4 = REGM4_MAX;
10124 + else if (best.regm4 == 0)
10125 + best.regm4 = 1;
10126 + best.dsi2_pll_fclk = best.dsiphy / best.regm4;
10127 +
10128 + if (cinfo)
10129 + *cinfo = best;
10130 +
10131 + dsi.cache_clk_freq = clk_freq;
10132 + dsi.cache_req_pck = 0;
10133 + dsi.cache_cinfo = best;
10134 +
10135 + return 0;
10136 +}
10137 +
10138 +int dsi_pll_program(struct dsi_clock_info *cinfo)
10139 +{
10140 + int r = 0;
10141 + u32 l;
10142 +
10143 + DSSDBG("dsi_pll_program\n");
10144 +
10145 + dsi.dsiphy = cinfo->dsiphy;
10146 + dsi.ddr_clk = dsi.dsiphy / 4;
10147 + dsi.dsi1_pll_fclk = cinfo->dsi1_pll_fclk;
10148 + dsi.dsi2_pll_fclk = cinfo->dsi2_pll_fclk;
10149 +
10150 + DSSDBG("DSI Fint %ld\n", cinfo->fint);
10151 +
10152 + DSSDBG("clkin (%s) rate %ld, highfreq %d\n",
10153 + cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree",
10154 + cinfo->clkin,
10155 + cinfo->highfreq);
10156 +
10157 + /* DSIPHY == CLKIN4DDR */
10158 + DSSDBG("DSIPHY = 2 * %d / %d * %lu / %d = %lu\n",
10159 + cinfo->regm,
10160 + cinfo->regn,
10161 + cinfo->clkin,
10162 + cinfo->highfreq + 1,
10163 + cinfo->dsiphy);
10164 +
10165 + DSSDBG("Data rate on 1 DSI lane %ld Mbps\n",
10166 + dsi.dsiphy / 1000 / 1000 / 2);
10167 +
10168 + DSSDBG("Clock lane freq %ld Hz\n", dsi.ddr_clk);
10169 +
10170 + DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n",
10171 + cinfo->regm3, cinfo->dsi1_pll_fclk);
10172 + DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n",
10173 + cinfo->regm4, cinfo->dsi2_pll_fclk);
10174 +
10175 + REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */
10176 +
10177 + l = dsi_read_reg(DSI_PLL_CONFIGURATION1);
10178 + l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */
10179 + l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */
10180 + l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */
10181 + l = FLD_MOD(l, cinfo->regm3 - 1, 22, 19); /* DSI_CLOCK_DIV */
10182 + l = FLD_MOD(l, cinfo->regm4 - 1, 26, 23); /* DSIPROTO_CLOCK_DIV */
10183 + dsi_write_reg(DSI_PLL_CONFIGURATION1, l);
10184 +
10185 + l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
10186 + l = FLD_MOD(l, 7, 4, 1); /* DSI_PLL_FREQSEL */
10187 + /* DSI_PLL_CLKSEL */
10188 + l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, 11, 11);
10189 + l = FLD_MOD(l, cinfo->highfreq, 12, 12); /* DSI_PLL_HIGHFREQ */
10190 + l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
10191 + l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */
10192 + l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */
10193 + dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
10194 +
10195 + REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */
10196 +
10197 + if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) {
10198 + DSSERR("dsi pll go bit not going down.\n");
10199 + r = -EIO;
10200 + goto err;
10201 + }
10202 +
10203 + if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) {
10204 + DSSERR("cannot lock PLL\n");
10205 + r = -EIO;
10206 + goto err;
10207 + }
10208 +
10209 + dsi.pll_locked = 1;
10210 +
10211 + l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
10212 + l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */
10213 + l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */
10214 + l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */
10215 + l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */
10216 + l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */
10217 + l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */
10218 + l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
10219 + l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */
10220 + l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */
10221 + l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */
10222 + l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */
10223 + l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */
10224 + l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */
10225 + l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */
10226 + dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
10227 +
10228 + DSSDBG("PLL config done\n");
10229 +err:
10230 + return r;
10231 +}
10232 +
10233 +int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv)
10234 +{
10235 + int r = 0;
10236 + enum dsi_pll_power_state pwstate;
10237 + struct dispc_clock_info cinfo;
10238 +
10239 + DSSDBG("PLL init\n");
10240 +
10241 + enable_clocks(1);
10242 + dsi_enable_pll_clock(1);
10243 +
10244 + /* XXX this should be calculated depending on the screen size,
10245 + * required framerate and DSI speed.
10246 + * For now 48MHz is enough for 864x480@60 with 360Mbps/lane
10247 + * with two lanes */
10248 + r = dispc_calc_clock_div(1, 48 * 1000 * 1000, &cinfo);
10249 + if (r)
10250 + goto err0;
10251 +
10252 + r = dispc_set_clock_div(&cinfo);
10253 + if (r) {
10254 + DSSERR("Failed to set basic clocks\n");
10255 + goto err0;
10256 + }
10257 +
10258 + r = regulator_enable(dsi.vdds_dsi_reg);
10259 + if (r)
10260 + goto err0;
10261 +
10262 + /* XXX PLL does not come out of reset without this... */
10263 + dispc_pck_free_enable(1);
10264 +
10265 + if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) {
10266 + DSSERR("PLL not coming out of reset.\n");
10267 + r = -ENODEV;
10268 + goto err1;
10269 + }
10270 +
10271 + /* XXX ... but if left on, we get problems when planes do not
10272 + * fill the whole display. No idea about this */
10273 + dispc_pck_free_enable(0);
10274 +
10275 + if (enable_hsclk && enable_hsdiv)
10276 + pwstate = DSI_PLL_POWER_ON_ALL;
10277 + else if (enable_hsclk)
10278 + pwstate = DSI_PLL_POWER_ON_HSCLK;
10279 + else if (enable_hsdiv)
10280 + pwstate = DSI_PLL_POWER_ON_DIV;
10281 + else
10282 + pwstate = DSI_PLL_POWER_OFF;
10283 +
10284 + r = dsi_pll_power(pwstate);
10285 +
10286 + if (r)
10287 + goto err1;
10288 +
10289 + DSSDBG("PLL init done\n");
10290 +
10291 + return 0;
10292 +err1:
10293 + regulator_disable(dsi.vdds_dsi_reg);
10294 +err0:
10295 + enable_clocks(0);
10296 + dsi_enable_pll_clock(0);
10297 + return r;
10298 +}
10299 +
10300 +void dsi_pll_uninit(void)
10301 +{
10302 + enable_clocks(0);
10303 + dsi_enable_pll_clock(0);
10304 +
10305 + dsi.pll_locked = 0;
10306 + dsi_pll_power(DSI_PLL_POWER_OFF);
10307 + regulator_disable(dsi.vdds_dsi_reg);
10308 + DSSDBG("PLL uninit done\n");
10309 +}
10310 +
10311 +unsigned long dsi_get_dsi1_pll_rate(void)
10312 +{
10313 + return dsi.dsi1_pll_fclk;
10314 +}
10315 +
10316 +unsigned long dsi_get_dsi2_pll_rate(void)
10317 +{
10318 + return dsi.dsi2_pll_fclk;
10319 +}
10320 +
10321 +void dsi_dump_clocks(struct seq_file *s)
10322 +{
10323 + int clksel;
10324 +
10325 + enable_clocks(1);
10326 +
10327 + clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11);
10328 +
10329 + seq_printf(s, "- dsi -\n");
10330 +
10331 + seq_printf(s, "dsi fclk source = %s\n",
10332 + dss_get_dsi_clk_source() == 0 ?
10333 + "dss1_alwon_fclk" : "dsi2_pll_fclk");
10334 +
10335 + seq_printf(s, "dsi pll source = %s\n",
10336 + clksel == 0 ?
10337 + "dss2_alwon_fclk" : "pclkfree");
10338 +
10339 + seq_printf(s, "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n",
10340 + dsi.dsiphy, dsi.ddr_clk);
10341 +
10342 + seq_printf(s, "dsi1_pll_fck\t%lu (%s)\n"
10343 + "dsi2_pll_fck\t%lu (%s)\n",
10344 + dsi.dsi1_pll_fclk,
10345 + dss_get_dispc_clk_source() == 0 ? "off" : "on",
10346 + dsi.dsi2_pll_fclk,
10347 + dss_get_dsi_clk_source() == 0 ? "off" : "on");
10348 +
10349 + enable_clocks(0);
10350 +}
10351 +
10352 +void dsi_dump_regs(struct seq_file *s)
10353 +{
10354 +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r))
10355 +
10356 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
10357 +
10358 + DUMPREG(DSI_REVISION);
10359 + DUMPREG(DSI_SYSCONFIG);
10360 + DUMPREG(DSI_SYSSTATUS);
10361 + DUMPREG(DSI_IRQSTATUS);
10362 + DUMPREG(DSI_IRQENABLE);
10363 + DUMPREG(DSI_CTRL);
10364 + DUMPREG(DSI_COMPLEXIO_CFG1);
10365 + DUMPREG(DSI_COMPLEXIO_IRQ_STATUS);
10366 + DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE);
10367 + DUMPREG(DSI_CLK_CTRL);
10368 + DUMPREG(DSI_TIMING1);
10369 + DUMPREG(DSI_TIMING2);
10370 + DUMPREG(DSI_VM_TIMING1);
10371 + DUMPREG(DSI_VM_TIMING2);
10372 + DUMPREG(DSI_VM_TIMING3);
10373 + DUMPREG(DSI_CLK_TIMING);
10374 + DUMPREG(DSI_TX_FIFO_VC_SIZE);
10375 + DUMPREG(DSI_RX_FIFO_VC_SIZE);
10376 + DUMPREG(DSI_COMPLEXIO_CFG2);
10377 + DUMPREG(DSI_RX_FIFO_VC_FULLNESS);
10378 + DUMPREG(DSI_VM_TIMING4);
10379 + DUMPREG(DSI_TX_FIFO_VC_EMPTINESS);
10380 + DUMPREG(DSI_VM_TIMING5);
10381 + DUMPREG(DSI_VM_TIMING6);
10382 + DUMPREG(DSI_VM_TIMING7);
10383 + DUMPREG(DSI_STOPCLK_TIMING);
10384 +
10385 + DUMPREG(DSI_VC_CTRL(0));
10386 + DUMPREG(DSI_VC_TE(0));
10387 + DUMPREG(DSI_VC_LONG_PACKET_HEADER(0));
10388 + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0));
10389 + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0));
10390 + DUMPREG(DSI_VC_IRQSTATUS(0));
10391 + DUMPREG(DSI_VC_IRQENABLE(0));
10392 +
10393 + DUMPREG(DSI_VC_CTRL(1));
10394 + DUMPREG(DSI_VC_TE(1));
10395 + DUMPREG(DSI_VC_LONG_PACKET_HEADER(1));
10396 + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1));
10397 + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1));
10398 + DUMPREG(DSI_VC_IRQSTATUS(1));
10399 + DUMPREG(DSI_VC_IRQENABLE(1));
10400 +
10401 + DUMPREG(DSI_VC_CTRL(2));
10402 + DUMPREG(DSI_VC_TE(2));
10403 + DUMPREG(DSI_VC_LONG_PACKET_HEADER(2));
10404 + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2));
10405 + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2));
10406 + DUMPREG(DSI_VC_IRQSTATUS(2));
10407 + DUMPREG(DSI_VC_IRQENABLE(2));
10408 +
10409 + DUMPREG(DSI_VC_CTRL(3));
10410 + DUMPREG(DSI_VC_TE(3));
10411 + DUMPREG(DSI_VC_LONG_PACKET_HEADER(3));
10412 + DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3));
10413 + DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3));
10414 + DUMPREG(DSI_VC_IRQSTATUS(3));
10415 + DUMPREG(DSI_VC_IRQENABLE(3));
10416 +
10417 + DUMPREG(DSI_DSIPHY_CFG0);
10418 + DUMPREG(DSI_DSIPHY_CFG1);
10419 + DUMPREG(DSI_DSIPHY_CFG2);
10420 + DUMPREG(DSI_DSIPHY_CFG5);
10421 +
10422 + DUMPREG(DSI_PLL_CONTROL);
10423 + DUMPREG(DSI_PLL_STATUS);
10424 + DUMPREG(DSI_PLL_GO);
10425 + DUMPREG(DSI_PLL_CONFIGURATION1);
10426 + DUMPREG(DSI_PLL_CONFIGURATION2);
10427 +
10428 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
10429 +#undef DUMPREG
10430 +}
10431 +
10432 +enum dsi_complexio_power_state {
10433 + DSI_COMPLEXIO_POWER_OFF = 0x0,
10434 + DSI_COMPLEXIO_POWER_ON = 0x1,
10435 + DSI_COMPLEXIO_POWER_ULPS = 0x2,
10436 +};
10437 +
10438 +static int dsi_complexio_power(enum dsi_complexio_power_state state)
10439 +{
10440 + int t = 0;
10441 +
10442 + /* PWR_CMD */
10443 + REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27);
10444 +
10445 + /* PWR_STATUS */
10446 + while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) {
10447 + udelay(1);
10448 + if (t++ > 1000) {
10449 + DSSERR("failed to set complexio power state to "
10450 + "%d\n", state);
10451 + return -ENODEV;
10452 + }
10453 + }
10454 +
10455 + return 0;
10456 +}
10457 +
10458 +static void dsi_complexio_config(struct omap_dss_device *dssdev)
10459 +{
10460 + u32 r;
10461 +
10462 + int clk_lane = dssdev->phy.dsi.clk_lane;
10463 + int data1_lane = dssdev->phy.dsi.data1_lane;
10464 + int data2_lane = dssdev->phy.dsi.data2_lane;
10465 + int clk_pol = dssdev->phy.dsi.clk_pol;
10466 + int data1_pol = dssdev->phy.dsi.data1_pol;
10467 + int data2_pol = dssdev->phy.dsi.data2_pol;
10468 +
10469 + r = dsi_read_reg(DSI_COMPLEXIO_CFG1);
10470 + r = FLD_MOD(r, clk_lane, 2, 0);
10471 + r = FLD_MOD(r, clk_pol, 3, 3);
10472 + r = FLD_MOD(r, data1_lane, 6, 4);
10473 + r = FLD_MOD(r, data1_pol, 7, 7);
10474 + r = FLD_MOD(r, data2_lane, 10, 8);
10475 + r = FLD_MOD(r, data2_pol, 11, 11);
10476 + dsi_write_reg(DSI_COMPLEXIO_CFG1, r);
10477 +
10478 + /* The configuration of the DSI complex I/O (number of data lanes,
10479 + position, differential order) should not be changed while
10480 + DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for
10481 + the hardware to take into account a new configuration of the complex
10482 + I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to
10483 + follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1,
10484 + then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set
10485 + DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the
10486 + DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the
10487 + DSI complex I/O configuration is unknown. */
10488 +
10489 + /*
10490 + REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
10491 + REG_FLD_MOD(DSI_CTRL, 0, 0, 0);
10492 + REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20);
10493 + REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
10494 + */
10495 +}
10496 +
10497 +static inline unsigned ns2ddr(unsigned ns)
10498 +{
10499 + /* convert time in ns to ddr ticks, rounding up */
10500 + return (ns * (dsi.ddr_clk/1000/1000) + 999) / 1000;
10501 +}
10502 +
10503 +static inline unsigned ddr2ns(unsigned ddr)
10504 +{
10505 + return ddr * 1000 * 1000 / (dsi.ddr_clk / 1000);
10506 +}
10507 +
10508 +static void dsi_complexio_timings(void)
10509 +{
10510 + u32 r;
10511 + u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit;
10512 + u32 tlpx_half, tclk_trail, tclk_zero;
10513 + u32 tclk_prepare;
10514 +
10515 + /* calculate timings */
10516 +
10517 + /* 1 * DDR_CLK = 2 * UI */
10518 +
10519 + /* min 40ns + 4*UI max 85ns + 6*UI */
10520 + ths_prepare = ns2ddr(70) + 2;
10521 +
10522 + /* min 145ns + 10*UI */
10523 + ths_prepare_ths_zero = ns2ddr(175) + 2;
10524 +
10525 + /* min max(8*UI, 60ns+4*UI) */
10526 + ths_trail = ns2ddr(60) + 5;
10527 +
10528 + /* min 100ns */
10529 + ths_exit = ns2ddr(145);
10530 +
10531 + /* tlpx min 50n */
10532 + tlpx_half = ns2ddr(25);
10533 +
10534 + /* min 60ns */
10535 + tclk_trail = ns2ddr(60) + 2;
10536 +
10537 + /* min 38ns, max 95ns */
10538 + tclk_prepare = ns2ddr(65);
10539 +
10540 + /* min tclk-prepare + tclk-zero = 300ns */
10541 + tclk_zero = ns2ddr(260);
10542 +
10543 + DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n",
10544 + ths_prepare, ddr2ns(ths_prepare),
10545 + ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero));
10546 + DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n",
10547 + ths_trail, ddr2ns(ths_trail),
10548 + ths_exit, ddr2ns(ths_exit));
10549 +
10550 + DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), "
10551 + "tclk_zero %u (%uns)\n",
10552 + tlpx_half, ddr2ns(tlpx_half),
10553 + tclk_trail, ddr2ns(tclk_trail),
10554 + tclk_zero, ddr2ns(tclk_zero));
10555 + DSSDBG("tclk_prepare %u (%uns)\n",
10556 + tclk_prepare, ddr2ns(tclk_prepare));
10557 +
10558 + /* program timings */
10559 +
10560 + r = dsi_read_reg(DSI_DSIPHY_CFG0);
10561 + r = FLD_MOD(r, ths_prepare, 31, 24);
10562 + r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16);
10563 + r = FLD_MOD(r, ths_trail, 15, 8);
10564 + r = FLD_MOD(r, ths_exit, 7, 0);
10565 + dsi_write_reg(DSI_DSIPHY_CFG0, r);
10566 +
10567 + r = dsi_read_reg(DSI_DSIPHY_CFG1);
10568 + r = FLD_MOD(r, tlpx_half, 22, 16);
10569 + r = FLD_MOD(r, tclk_trail, 15, 8);
10570 + r = FLD_MOD(r, tclk_zero, 7, 0);
10571 + dsi_write_reg(DSI_DSIPHY_CFG1, r);
10572 +
10573 + r = dsi_read_reg(DSI_DSIPHY_CFG2);
10574 + r = FLD_MOD(r, tclk_prepare, 7, 0);
10575 + dsi_write_reg(DSI_DSIPHY_CFG2, r);
10576 +}
10577 +
10578 +
10579 +static int dsi_complexio_init(struct omap_dss_device *dssdev)
10580 +{
10581 + int r = 0;
10582 +
10583 + DSSDBG("dsi_complexio_init\n");
10584 +
10585 + /* CIO_CLK_ICG, enable L3 clk to CIO */
10586 + REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14);
10587 +
10588 + /* A dummy read using the SCP interface to any DSIPHY register is
10589 + * required after DSIPHY reset to complete the reset of the DSI complex
10590 + * I/O. */
10591 + dsi_read_reg(DSI_DSIPHY_CFG5);
10592 +
10593 + if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) {
10594 + DSSERR("ComplexIO PHY not coming out of reset.\n");
10595 + r = -ENODEV;
10596 + goto err;
10597 + }
10598 +
10599 + dsi_complexio_config(dssdev);
10600 +
10601 + r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON);
10602 +
10603 + if (r)
10604 + goto err;
10605 +
10606 + if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) {
10607 + DSSERR("ComplexIO not coming out of reset.\n");
10608 + r = -ENODEV;
10609 + goto err;
10610 + }
10611 +
10612 + if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) {
10613 + DSSERR("ComplexIO LDO power down.\n");
10614 + r = -ENODEV;
10615 + goto err;
10616 + }
10617 +
10618 + dsi_complexio_timings();
10619 +
10620 + /*
10621 + The configuration of the DSI complex I/O (number of data lanes,
10622 + position, differential order) should not be changed while
10623 + DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the
10624 + hardware to recognize a new configuration of the complex I/O (done
10625 + in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow
10626 + this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next
10627 + reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20]
10628 + LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN
10629 + bit to 1. If the sequence is not followed, the DSi complex I/O
10630 + configuration is undetermined.
10631 + */
10632 + dsi_if_enable(1);
10633 + dsi_if_enable(0);
10634 + REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */
10635 + dsi_if_enable(1);
10636 + dsi_if_enable(0);
10637 +
10638 + DSSDBG("CIO init done\n");
10639 +err:
10640 + return r;
10641 +}
10642 +
10643 +static void dsi_complexio_uninit(void)
10644 +{
10645 + dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF);
10646 +}
10647 +
10648 +static int _dsi_wait_reset(void)
10649 +{
10650 + int i = 0;
10651 +
10652 + while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) {
10653 + if (i++ > 5) {
10654 + DSSERR("soft reset failed\n");
10655 + return -ENODEV;
10656 + }
10657 + udelay(1);
10658 + }
10659 +
10660 + return 0;
10661 +}
10662 +
10663 +static int _dsi_reset(void)
10664 +{
10665 + /* Soft reset */
10666 + REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1);
10667 + return _dsi_wait_reset();
10668 +}
10669 +
10670 +
10671 +static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2,
10672 + enum fifo_size size3, enum fifo_size size4)
10673 +{
10674 + u32 r = 0;
10675 + int add = 0;
10676 + int i;
10677 +
10678 + dsi.vc[0].fifo_size = size1;
10679 + dsi.vc[1].fifo_size = size2;
10680 + dsi.vc[2].fifo_size = size3;
10681 + dsi.vc[3].fifo_size = size4;
10682 +
10683 + for (i = 0; i < 4; i++) {
10684 + u8 v;
10685 + int size = dsi.vc[i].fifo_size;
10686 +
10687 + if (add + size > 4) {
10688 + DSSERR("Illegal FIFO configuration\n");
10689 + BUG();
10690 + }
10691 +
10692 + v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
10693 + r |= v << (8 * i);
10694 + /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */
10695 + add += size;
10696 + }
10697 +
10698 + dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r);
10699 +}
10700 +
10701 +static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2,
10702 + enum fifo_size size3, enum fifo_size size4)
10703 +{
10704 + u32 r = 0;
10705 + int add = 0;
10706 + int i;
10707 +
10708 + dsi.vc[0].fifo_size = size1;
10709 + dsi.vc[1].fifo_size = size2;
10710 + dsi.vc[2].fifo_size = size3;
10711 + dsi.vc[3].fifo_size = size4;
10712 +
10713 + for (i = 0; i < 4; i++) {
10714 + u8 v;
10715 + int size = dsi.vc[i].fifo_size;
10716 +
10717 + if (add + size > 4) {
10718 + DSSERR("Illegal FIFO configuration\n");
10719 + BUG();
10720 + }
10721 +
10722 + v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
10723 + r |= v << (8 * i);
10724 + /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */
10725 + add += size;
10726 + }
10727 +
10728 + dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r);
10729 +}
10730 +
10731 +static int dsi_force_tx_stop_mode_io(void)
10732 +{
10733 + u32 r;
10734 +
10735 + r = dsi_read_reg(DSI_TIMING1);
10736 + r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
10737 + dsi_write_reg(DSI_TIMING1, r);
10738 +
10739 + if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) {
10740 + DSSERR("TX_STOP bit not going down\n");
10741 + return -EIO;
10742 + }
10743 +
10744 + return 0;
10745 +}
10746 +
10747 +static void dsi_vc_print_status(int channel)
10748 +{
10749 + u32 r;
10750 +
10751 + r = dsi_read_reg(DSI_VC_CTRL(channel));
10752 + DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, "
10753 + "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ",
10754 + channel,
10755 + FLD_GET(r, 5, 5),
10756 + FLD_GET(r, 6, 6),
10757 + FLD_GET(r, 15, 15),
10758 + FLD_GET(r, 16, 16),
10759 + FLD_GET(r, 20, 20));
10760 +
10761 + r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS);
10762 + DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff);
10763 +}
10764 +
10765 +static int dsi_vc_enable(int channel, bool enable)
10766 +{
10767 + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
10768 + DSSDBG("dsi_vc_enable channel %d, enable %d\n",
10769 + channel, enable);
10770 +
10771 + enable = enable ? 1 : 0;
10772 +
10773 + REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0);
10774 +
10775 + if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) {
10776 + DSSERR("Failed to set dsi_vc_enable to %d\n", enable);
10777 + return -EIO;
10778 + }
10779 +
10780 + return 0;
10781 +}
10782 +
10783 +static void dsi_vc_initial_config(int channel)
10784 +{
10785 + u32 r;
10786 +
10787 + DSSDBGF("%d", channel);
10788 +
10789 + r = dsi_read_reg(DSI_VC_CTRL(channel));
10790 +
10791 + if (FLD_GET(r, 15, 15)) /* VC_BUSY */
10792 + DSSERR("VC(%d) busy when trying to configure it!\n",
10793 + channel);
10794 +
10795 + r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */
10796 + r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
10797 + r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
10798 + r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
10799 + r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
10800 + r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
10801 + r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */
10802 +
10803 + r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
10804 + r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
10805 +
10806 + dsi_write_reg(DSI_VC_CTRL(channel), r);
10807 +
10808 + dsi.vc[channel].mode = DSI_VC_MODE_L4;
10809 +}
10810 +
10811 +static void dsi_vc_config_l4(int channel)
10812 +{
10813 + if (dsi.vc[channel].mode == DSI_VC_MODE_L4)
10814 + return;
10815 +
10816 + DSSDBGF("%d", channel);
10817 +
10818 + dsi_vc_enable(channel, 0);
10819 +
10820 + if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */
10821 + DSSERR("vc(%d) busy when trying to config for L4\n", channel);
10822 +
10823 + REG_FLD_MOD(DSI_VC_CTRL(channel), 0, 1, 1); /* SOURCE, 0 = L4 */
10824 +
10825 + dsi_vc_enable(channel, 1);
10826 +
10827 + dsi.vc[channel].mode = DSI_VC_MODE_L4;
10828 +}
10829 +
10830 +static void dsi_vc_config_vp(int channel)
10831 +{
10832 + if (dsi.vc[channel].mode == DSI_VC_MODE_VP)
10833 + return;
10834 +
10835 + DSSDBGF("%d", channel);
10836 +
10837 + dsi_vc_enable(channel, 0);
10838 +
10839 + if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */
10840 + DSSERR("vc(%d) busy when trying to config for VP\n", channel);
10841 +
10842 + REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 1, 1); /* SOURCE, 1 = video port */
10843 +
10844 + dsi_vc_enable(channel, 1);
10845 +
10846 + dsi.vc[channel].mode = DSI_VC_MODE_VP;
10847 +}
10848 +
10849 +
10850 +static void dsi_vc_enable_hs(int channel, bool enable)
10851 +{
10852 + DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
10853 +
10854 + dsi_vc_enable(channel, 0);
10855 + dsi_if_enable(0);
10856 +
10857 + REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9);
10858 +
10859 + dsi_vc_enable(channel, 1);
10860 + dsi_if_enable(1);
10861 +
10862 + dsi_force_tx_stop_mode_io();
10863 +}
10864 +
10865 +static void dsi_vc_flush_long_data(int channel)
10866 +{
10867 + while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
10868 + u32 val;
10869 + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
10870 + DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n",
10871 + (val >> 0) & 0xff,
10872 + (val >> 8) & 0xff,
10873 + (val >> 16) & 0xff,
10874 + (val >> 24) & 0xff);
10875 + }
10876 +}
10877 +
10878 +static void dsi_show_rx_ack_with_err(u16 err)
10879 +{
10880 + DSSERR("\tACK with ERROR (%#x):\n", err);
10881 + if (err & (1 << 0))
10882 + DSSERR("\t\tSoT Error\n");
10883 + if (err & (1 << 1))
10884 + DSSERR("\t\tSoT Sync Error\n");
10885 + if (err & (1 << 2))
10886 + DSSERR("\t\tEoT Sync Error\n");
10887 + if (err & (1 << 3))
10888 + DSSERR("\t\tEscape Mode Entry Command Error\n");
10889 + if (err & (1 << 4))
10890 + DSSERR("\t\tLP Transmit Sync Error\n");
10891 + if (err & (1 << 5))
10892 + DSSERR("\t\tHS Receive Timeout Error\n");
10893 + if (err & (1 << 6))
10894 + DSSERR("\t\tFalse Control Error\n");
10895 + if (err & (1 << 7))
10896 + DSSERR("\t\t(reserved7)\n");
10897 + if (err & (1 << 8))
10898 + DSSERR("\t\tECC Error, single-bit (corrected)\n");
10899 + if (err & (1 << 9))
10900 + DSSERR("\t\tECC Error, multi-bit (not corrected)\n");
10901 + if (err & (1 << 10))
10902 + DSSERR("\t\tChecksum Error\n");
10903 + if (err & (1 << 11))
10904 + DSSERR("\t\tData type not recognized\n");
10905 + if (err & (1 << 12))
10906 + DSSERR("\t\tInvalid VC ID\n");
10907 + if (err & (1 << 13))
10908 + DSSERR("\t\tInvalid Transmission Length\n");
10909 + if (err & (1 << 14))
10910 + DSSERR("\t\t(reserved14)\n");
10911 + if (err & (1 << 15))
10912 + DSSERR("\t\tDSI Protocol Violation\n");
10913 +}
10914 +
10915 +static u16 dsi_vc_flush_receive_data(int channel)
10916 +{
10917 + /* RX_FIFO_NOT_EMPTY */
10918 + while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
10919 + u32 val;
10920 + u8 dt;
10921 + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
10922 + DSSDBG("\trawval %#08x\n", val);
10923 + dt = FLD_GET(val, 5, 0);
10924 + if (dt == DSI_DT_RX_ACK_WITH_ERR) {
10925 + u16 err = FLD_GET(val, 23, 8);
10926 + dsi_show_rx_ack_with_err(err);
10927 + } else if (dt == DSI_DT_RX_SHORT_READ_1) {
10928 + DSSDBG("\tDCS short response, 1 byte: %#x\n",
10929 + FLD_GET(val, 23, 8));
10930 + } else if (dt == DSI_DT_RX_SHORT_READ_2) {
10931 + DSSDBG("\tDCS short response, 2 byte: %#x\n",
10932 + FLD_GET(val, 23, 8));
10933 + } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
10934 + DSSDBG("\tDCS long response, len %d\n",
10935 + FLD_GET(val, 23, 8));
10936 + dsi_vc_flush_long_data(channel);
10937 + } else {
10938 + DSSERR("\tunknown datatype 0x%02x\n", dt);
10939 + }
10940 + }
10941 + return 0;
10942 +}
10943 +
10944 +static int dsi_vc_send_bta(int channel)
10945 +{
10946 + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO &&
10947 + (dsi.debug_write || dsi.debug_read))
10948 + DSSDBG("dsi_vc_send_bta %d\n", channel);
10949 +
10950 + WARN_ON(!mutex_is_locked(&dsi.bus_lock));
10951 +
10952 + if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */
10953 + DSSERR("rx fifo not empty when sending BTA, dumping data:\n");
10954 + dsi_vc_flush_receive_data(channel);
10955 + }
10956 +
10957 + REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
10958 +
10959 + return 0;
10960 +}
10961 +
10962 +int dsi_vc_send_bta_sync(int channel)
10963 +{
10964 + int r = 0;
10965 + u32 err;
10966 +
10967 + INIT_COMPLETION(dsi.bta_completion);
10968 +
10969 + dsi_vc_enable_bta_irq(channel);
10970 +
10971 + r = dsi_vc_send_bta(channel);
10972 + if (r)
10973 + goto err;
10974 +
10975 + if (wait_for_completion_timeout(&dsi.bta_completion,
10976 + msecs_to_jiffies(500)) == 0) {
10977 + DSSERR("Failed to receive BTA\n");
10978 + r = -EIO;
10979 + goto err;
10980 + }
10981 +
10982 + err = dsi_get_errors();
10983 + if (err) {
10984 + DSSERR("Error while sending BTA: %x\n", err);
10985 + r = -EIO;
10986 + goto err;
10987 + }
10988 +err:
10989 + dsi_vc_disable_bta_irq(channel);
10990 +
10991 + return r;
10992 +}
10993 +EXPORT_SYMBOL(dsi_vc_send_bta_sync);
10994 +
10995 +static inline void dsi_vc_write_long_header(int channel, u8 data_type,
10996 + u16 len, u8 ecc)
10997 +{
10998 + u32 val;
10999 + u8 data_id;
11000 +
11001 + WARN_ON(!mutex_is_locked(&dsi.bus_lock));
11002 +
11003 + /*data_id = data_type | channel << 6; */
11004 + data_id = data_type | dsi.vc[channel].dest_per << 6;
11005 +
11006 + val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
11007 + FLD_VAL(ecc, 31, 24);
11008 +
11009 + dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val);
11010 +}
11011 +
11012 +static inline void dsi_vc_write_long_payload(int channel,
11013 + u8 b1, u8 b2, u8 b3, u8 b4)
11014 +{
11015 + u32 val;
11016 +
11017 + val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0;
11018 +
11019 +/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n",
11020 + b1, b2, b3, b4, val); */
11021 +
11022 + dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val);
11023 +}
11024 +
11025 +static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len,
11026 + u8 ecc)
11027 +{
11028 + /*u32 val; */
11029 + int i;
11030 + u8 *p;
11031 + int r = 0;
11032 + u8 b1, b2, b3, b4;
11033 +
11034 + if (dsi.debug_write)
11035 + DSSDBG("dsi_vc_send_long, %d bytes\n", len);
11036 +
11037 + /* len + header */
11038 + if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) {
11039 + DSSERR("unable to send long packet: packet too long.\n");
11040 + return -EINVAL;
11041 + }
11042 +
11043 + dsi_vc_config_l4(channel);
11044 +
11045 + dsi_vc_write_long_header(channel, data_type, len, ecc);
11046 +
11047 + /*dsi_vc_print_status(0); */
11048 +
11049 + p = data;
11050 + for (i = 0; i < len >> 2; i++) {
11051 + if (dsi.debug_write)
11052 + DSSDBG("\tsending full packet %d\n", i);
11053 + /*dsi_vc_print_status(0); */
11054 +
11055 + b1 = *p++;
11056 + b2 = *p++;
11057 + b3 = *p++;
11058 + b4 = *p++;
11059 +
11060 + dsi_vc_write_long_payload(channel, b1, b2, b3, b4);
11061 + }
11062 +
11063 + i = len % 4;
11064 + if (i) {
11065 + b1 = 0; b2 = 0; b3 = 0;
11066 +
11067 + if (dsi.debug_write)
11068 + DSSDBG("\tsending remainder bytes %d\n", i);
11069 +
11070 + switch (i) {
11071 + case 3:
11072 + b1 = *p++;
11073 + b2 = *p++;
11074 + b3 = *p++;
11075 + break;
11076 + case 2:
11077 + b1 = *p++;
11078 + b2 = *p++;
11079 + break;
11080 + case 1:
11081 + b1 = *p++;
11082 + break;
11083 + }
11084 +
11085 + dsi_vc_write_long_payload(channel, b1, b2, b3, 0);
11086 + }
11087 +
11088 + return r;
11089 +}
11090 +
11091 +static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc)
11092 +{
11093 + u32 r;
11094 + u8 data_id;
11095 +
11096 + WARN_ON(!mutex_is_locked(&dsi.bus_lock));
11097 +
11098 + if (dsi.debug_write)
11099 + DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n",
11100 + channel,
11101 + data_type, data & 0xff, (data >> 8) & 0xff);
11102 +
11103 + dsi_vc_config_l4(channel);
11104 +
11105 + if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) {
11106 + DSSERR("ERROR FIFO FULL, aborting transfer\n");
11107 + return -EINVAL;
11108 + }
11109 +
11110 + data_id = data_type | channel << 6;
11111 +
11112 + r = (data_id << 0) | (data << 8) | (ecc << 24);
11113 +
11114 + dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r);
11115 +
11116 + return 0;
11117 +}
11118 +
11119 +int dsi_vc_send_null(int channel)
11120 +{
11121 + u8 nullpkg[] = {0, 0, 0, 0};
11122 + return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0);
11123 +}
11124 +EXPORT_SYMBOL(dsi_vc_send_null);
11125 +
11126 +int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len)
11127 +{
11128 + int r;
11129 +
11130 + BUG_ON(len == 0);
11131 +
11132 + if (len == 1) {
11133 + r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0,
11134 + data[0], 0);
11135 + } else if (len == 2) {
11136 + r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1,
11137 + data[0] | (data[1] << 8), 0);
11138 + } else {
11139 + /* 0x39 = DCS Long Write */
11140 + r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE,
11141 + data, len, 0);
11142 + }
11143 +
11144 + return r;
11145 +}
11146 +EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
11147 +
11148 +int dsi_vc_dcs_write(int channel, u8 *data, int len)
11149 +{
11150 + int r;
11151 +
11152 + r = dsi_vc_dcs_write_nosync(channel, data, len);
11153 + if (r)
11154 + return r;
11155 +
11156 + r = dsi_vc_send_bta_sync(channel);
11157 +
11158 + return r;
11159 +}
11160 +EXPORT_SYMBOL(dsi_vc_dcs_write);
11161 +
11162 +int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen)
11163 +{
11164 + u32 val;
11165 + u8 dt;
11166 + int r;
11167 +
11168 + if (dsi.debug_read)
11169 + DSSDBG("dsi_vc_dcs_read(ch%d, dcs_cmd %u)\n", channel, dcs_cmd);
11170 +
11171 + r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0);
11172 + if (r)
11173 + return r;
11174 +
11175 + r = dsi_vc_send_bta_sync(channel);
11176 + if (r)
11177 + return r;
11178 +
11179 + /* RX_FIFO_NOT_EMPTY */
11180 + if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) {
11181 + DSSERR("RX fifo empty when trying to read.\n");
11182 + return -EIO;
11183 + }
11184 +
11185 + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
11186 + if (dsi.debug_read)
11187 + DSSDBG("\theader: %08x\n", val);
11188 + dt = FLD_GET(val, 5, 0);
11189 + if (dt == DSI_DT_RX_ACK_WITH_ERR) {
11190 + u16 err = FLD_GET(val, 23, 8);
11191 + dsi_show_rx_ack_with_err(err);
11192 + return -EIO;
11193 +
11194 + } else if (dt == DSI_DT_RX_SHORT_READ_1) {
11195 + u8 data = FLD_GET(val, 15, 8);
11196 + if (dsi.debug_read)
11197 + DSSDBG("\tDCS short response, 1 byte: %02x\n", data);
11198 +
11199 + if (buflen < 1)
11200 + return -EIO;
11201 +
11202 + buf[0] = data;
11203 +
11204 + return 1;
11205 + } else if (dt == DSI_DT_RX_SHORT_READ_2) {
11206 + u16 data = FLD_GET(val, 23, 8);
11207 + if (dsi.debug_read)
11208 + DSSDBG("\tDCS short response, 2 byte: %04x\n", data);
11209 +
11210 + if (buflen < 2)
11211 + return -EIO;
11212 +
11213 + buf[0] = data & 0xff;
11214 + buf[1] = (data >> 8) & 0xff;
11215 +
11216 + return 2;
11217 + } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
11218 + int w;
11219 + int len = FLD_GET(val, 23, 8);
11220 + if (dsi.debug_read)
11221 + DSSDBG("\tDCS long response, len %d\n", len);
11222 +
11223 + if (len > buflen)
11224 + return -EIO;
11225 +
11226 + /* two byte checksum ends the packet, not included in len */
11227 + for (w = 0; w < len + 2;) {
11228 + int b;
11229 + val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
11230 + if (dsi.debug_read)
11231 + DSSDBG("\t\t%02x %02x %02x %02x\n",
11232 + (val >> 0) & 0xff,
11233 + (val >> 8) & 0xff,
11234 + (val >> 16) & 0xff,
11235 + (val >> 24) & 0xff);
11236 +
11237 + for (b = 0; b < 4; ++b) {
11238 + if (w < len)
11239 + buf[w] = (val >> (b * 8)) & 0xff;
11240 + /* we discard the 2 byte checksum */
11241 + ++w;
11242 + }
11243 + }
11244 +
11245 + return len;
11246 +
11247 + } else {
11248 + DSSERR("\tunknown datatype 0x%02x\n", dt);
11249 + return -EIO;
11250 + }
11251 +}
11252 +EXPORT_SYMBOL(dsi_vc_dcs_read);
11253 +
11254 +
11255 +int dsi_vc_set_max_rx_packet_size(int channel, u16 len)
11256 +{
11257 + return dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE,
11258 + len, 0);
11259 +}
11260 +EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size);
11261 +
11262 +
11263 +static int dsi_set_lp_rx_timeout(int ns, int x4, int x16)
11264 +{
11265 + u32 r;
11266 + unsigned long fck;
11267 + int ticks;
11268 +
11269 + /* ticks in DSI_FCK */
11270 +
11271 + fck = dsi_fclk_rate();
11272 + ticks = (fck / 1000 / 1000) * ns / 1000;
11273 +
11274 + if (ticks > 0x1fff) {
11275 + DSSERR("LP_TX_TO too high\n");
11276 + return -EINVAL;
11277 + }
11278 +
11279 + r = dsi_read_reg(DSI_TIMING2);
11280 + r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */
11281 + r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */
11282 + r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */
11283 + r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */
11284 + dsi_write_reg(DSI_TIMING2, r);
11285 +
11286 + DSSDBG("LP_RX_TO %ld ns (%#x ticks)\n",
11287 + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
11288 + (fck / 1000 / 1000),
11289 + ticks);
11290 +
11291 + return 0;
11292 +}
11293 +
11294 +static int dsi_set_ta_timeout(int ns, int x8, int x16)
11295 +{
11296 + u32 r;
11297 + unsigned long fck;
11298 + int ticks;
11299 +
11300 + /* ticks in DSI_FCK */
11301 +
11302 + fck = dsi_fclk_rate();
11303 + ticks = (fck / 1000 / 1000) * ns / 1000;
11304 +
11305 + if (ticks > 0x1fff) {
11306 + DSSERR("TA_TO too high\n");
11307 + return -EINVAL;
11308 + }
11309 +
11310 + r = dsi_read_reg(DSI_TIMING1);
11311 + r = FLD_MOD(r, 1, 31, 31); /* TA_TO */
11312 + r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */
11313 + r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */
11314 + r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */
11315 + dsi_write_reg(DSI_TIMING1, r);
11316 +
11317 + DSSDBG("TA_TO %ld ns (%#x ticks)\n",
11318 + (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) /
11319 + (fck / 1000 / 1000),
11320 + ticks);
11321 +
11322 + return 0;
11323 +}
11324 +
11325 +static int dsi_set_stop_state_counter(int ns, int x4, int x16)
11326 +{
11327 + u32 r;
11328 + unsigned long fck;
11329 + int ticks;
11330 +
11331 + /* ticks in DSI_FCK */
11332 +
11333 + fck = dsi_fclk_rate();
11334 + ticks = (fck / 1000 / 1000) * ns / 1000;
11335 +
11336 + if (ticks > 0x1fff) {
11337 + DSSERR("STOP_STATE_COUNTER_IO too high\n");
11338 + return -EINVAL;
11339 + }
11340 +
11341 + r = dsi_read_reg(DSI_TIMING1);
11342 + r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
11343 + r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */
11344 + r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */
11345 + r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */
11346 + dsi_write_reg(DSI_TIMING1, r);
11347 +
11348 + DSSDBG("STOP_STATE_COUNTER %ld ns (%#x ticks)\n",
11349 + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
11350 + (fck / 1000 / 1000),
11351 + ticks);
11352 +
11353 + return 0;
11354 +}
11355 +
11356 +static int dsi_set_hs_tx_timeout(int ns, int x4, int x16)
11357 +{
11358 + u32 r;
11359 + unsigned long fck;
11360 + int ticks;
11361 +
11362 + /* ticks in TxByteClkHS */
11363 +
11364 + fck = dsi.ddr_clk / 4;
11365 + ticks = (fck / 1000 / 1000) * ns / 1000;
11366 +
11367 + if (ticks > 0x1fff) {
11368 + DSSERR("HS_TX_TO too high\n");
11369 + return -EINVAL;
11370 + }
11371 +
11372 + r = dsi_read_reg(DSI_TIMING2);
11373 + r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */
11374 + r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */
11375 + r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */
11376 + r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */
11377 + dsi_write_reg(DSI_TIMING2, r);
11378 +
11379 + DSSDBG("HS_TX_TO %ld ns (%#x ticks)\n",
11380 + (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
11381 + (fck / 1000 / 1000),
11382 + ticks);
11383 +
11384 + return 0;
11385 +}
11386 +static int dsi_proto_config(struct omap_dss_device *dssdev)
11387 +{
11388 + u32 r;
11389 + int buswidth = 0;
11390 + int div;
11391 +
11392 + dsi_config_tx_fifo(DSI_FIFO_SIZE_128,
11393 + DSI_FIFO_SIZE_0,
11394 + DSI_FIFO_SIZE_0,
11395 + DSI_FIFO_SIZE_0);
11396 +
11397 + dsi_config_rx_fifo(DSI_FIFO_SIZE_128,
11398 + DSI_FIFO_SIZE_0,
11399 + DSI_FIFO_SIZE_0,
11400 + DSI_FIFO_SIZE_0);
11401 +
11402 + /* XXX what values for the timeouts? */
11403 + dsi_set_stop_state_counter(1000, 0, 0);
11404 +
11405 + dsi_set_ta_timeout(50000, 1, 1);
11406 +
11407 + /* 3000ns * 16 */
11408 + dsi_set_lp_rx_timeout(3000, 0, 1);
11409 +
11410 + /* 10000ns * 4 */
11411 + dsi_set_hs_tx_timeout(10000, 1, 0);
11412 +
11413 + switch (dssdev->ctrl.pixel_size) {
11414 + case 16:
11415 + buswidth = 0;
11416 + break;
11417 + case 18:
11418 + buswidth = 1;
11419 + break;
11420 + case 24:
11421 + buswidth = 2;
11422 + break;
11423 + default:
11424 + BUG();
11425 + }
11426 +
11427 + r = dsi_read_reg(DSI_CTRL);
11428 + r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */
11429 + r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */
11430 + r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */
11431 +
11432 + div = dispc_lclk_rate() / dispc_pclk_rate();
11433 + r = FLD_MOD(r, div == 2 ? 0 : 1, 4, 4); /* VP_CLK_RATIO */
11434 + r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */
11435 + r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */
11436 + r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */
11437 + r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */
11438 + r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */
11439 + r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */
11440 + r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */
11441 +
11442 + dsi_write_reg(DSI_CTRL, r);
11443 +
11444 + dsi_vc_initial_config(0);
11445 +
11446 + /* set all vc targets to peripheral 0 */
11447 + dsi.vc[0].dest_per = 0;
11448 + dsi.vc[1].dest_per = 0;
11449 + dsi.vc[2].dest_per = 0;
11450 + dsi.vc[3].dest_per = 0;
11451 +
11452 + return 0;
11453 +}
11454 +
11455 +static void dsi_proto_timings(struct omap_dss_device *dssdev)
11456 +{
11457 + unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
11458 + unsigned tclk_pre, tclk_post;
11459 + unsigned ths_prepare, ths_prepare_ths_zero, ths_zero;
11460 + unsigned ths_trail, ths_exit;
11461 + unsigned ddr_clk_pre, ddr_clk_post;
11462 + unsigned enter_hs_mode_lat, exit_hs_mode_lat;
11463 + unsigned ths_eot;
11464 + u32 r;
11465 +
11466 + r = dsi_read_reg(DSI_DSIPHY_CFG0);
11467 + ths_prepare = FLD_GET(r, 31, 24);
11468 + ths_prepare_ths_zero = FLD_GET(r, 23, 16);
11469 + ths_zero = ths_prepare_ths_zero - ths_prepare;
11470 + ths_trail = FLD_GET(r, 15, 8);
11471 + ths_exit = FLD_GET(r, 7, 0);
11472 +
11473 + r = dsi_read_reg(DSI_DSIPHY_CFG1);
11474 + tlpx = FLD_GET(r, 22, 16) * 2;
11475 + tclk_trail = FLD_GET(r, 15, 8);
11476 + tclk_zero = FLD_GET(r, 7, 0);
11477 +
11478 + r = dsi_read_reg(DSI_DSIPHY_CFG2);
11479 + tclk_prepare = FLD_GET(r, 7, 0);
11480 +
11481 + /* min 8*UI */
11482 + tclk_pre = 20;
11483 + /* min 60ns + 52*UI */
11484 + tclk_post = ns2ddr(60) + 26;
11485 +
11486 + /* ths_eot is 2 for 2 datalanes and 4 for 1 datalane */
11487 + if (dssdev->phy.dsi.data1_lane != 0 &&
11488 + dssdev->phy.dsi.data2_lane != 0)
11489 + ths_eot = 2;
11490 + else
11491 + ths_eot = 4;
11492 +
11493 + ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare,
11494 + 4);
11495 + ddr_clk_post = DIV_ROUND_UP(tclk_post + tclk_trail, 4) + ths_eot;
11496 +
11497 + BUG_ON(ddr_clk_pre == 0 || ddr_clk_pre > 255);
11498 + BUG_ON(ddr_clk_post == 0 || ddr_clk_post > 255);
11499 +
11500 + r = dsi_read_reg(DSI_CLK_TIMING);
11501 + r = FLD_MOD(r, ddr_clk_pre, 15, 8);
11502 + r = FLD_MOD(r, ddr_clk_post, 7, 0);
11503 + dsi_write_reg(DSI_CLK_TIMING, r);
11504 +
11505 + DSSDBG("ddr_clk_pre %u, ddr_clk_post %u\n",
11506 + ddr_clk_pre,
11507 + ddr_clk_post);
11508 +
11509 + enter_hs_mode_lat = 1 + DIV_ROUND_UP(tlpx, 4) +
11510 + DIV_ROUND_UP(ths_prepare, 4) +
11511 + DIV_ROUND_UP(ths_zero + 3, 4);
11512 +
11513 + exit_hs_mode_lat = DIV_ROUND_UP(ths_trail + ths_exit, 4) + 1 + ths_eot;
11514 +
11515 + r = FLD_VAL(enter_hs_mode_lat, 31, 16) |
11516 + FLD_VAL(exit_hs_mode_lat, 15, 0);
11517 + dsi_write_reg(DSI_VM_TIMING7, r);
11518 +
11519 + DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n",
11520 + enter_hs_mode_lat, exit_hs_mode_lat);
11521 +}
11522 +
11523 +
11524 +#define DSI_DECL_VARS \
11525 + int __dsi_cb = 0; u32 __dsi_cv = 0;
11526 +
11527 +#define DSI_FLUSH(ch) \
11528 + if (__dsi_cb > 0) { \
11529 + /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \
11530 + dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \
11531 + __dsi_cb = __dsi_cv = 0; \
11532 + }
11533 +
11534 +#define DSI_PUSH(ch, data) \
11535 + do { \
11536 + __dsi_cv |= (data) << (__dsi_cb * 8); \
11537 + /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \
11538 + if (++__dsi_cb > 3) \
11539 + DSI_FLUSH(ch); \
11540 + } while (0)
11541 +
11542 +static int dsi_update_screen_l4(struct omap_dss_device *dssdev,
11543 + int x, int y, int w, int h)
11544 +{
11545 + /* Note: supports only 24bit colors in 32bit container */
11546 + int first = 1;
11547 + int fifo_stalls = 0;
11548 + int max_dsi_packet_size;
11549 + int max_data_per_packet;
11550 + int max_pixels_per_packet;
11551 + int pixels_left;
11552 + int bytespp = dssdev->ctrl.pixel_size / 8;
11553 + int scr_width;
11554 + u32 __iomem *data;
11555 + int start_offset;
11556 + int horiz_inc;
11557 + int current_x;
11558 + struct omap_overlay *ovl;
11559 +
11560 + debug_irq = 0;
11561 +
11562 + DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n",
11563 + x, y, w, h);
11564 +
11565 + ovl = dssdev->manager->overlays[0];
11566 +
11567 + if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U)
11568 + return -EINVAL;
11569 +
11570 + if (dssdev->ctrl.pixel_size != 24)
11571 + return -EINVAL;
11572 +
11573 + scr_width = ovl->info.screen_width;
11574 + data = ovl->info.vaddr;
11575 +
11576 + start_offset = scr_width * y + x;
11577 + horiz_inc = scr_width - w;
11578 + current_x = x;
11579 +
11580 + /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes
11581 + * in fifo */
11582 +
11583 + /* When using CPU, max long packet size is TX buffer size */
11584 + max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
11585 +
11586 + /* we seem to get better perf if we divide the tx fifo to half,
11587 + and while the other half is being sent, we fill the other half
11588 + max_dsi_packet_size /= 2; */
11589 +
11590 + max_data_per_packet = max_dsi_packet_size - 4 - 1;
11591 +
11592 + max_pixels_per_packet = max_data_per_packet / bytespp;
11593 +
11594 + DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet);
11595 +
11596 + pixels_left = w * h;
11597 +
11598 + DSSDBG("total pixels %d\n", pixels_left);
11599 +
11600 + data += start_offset;
11601 +
11602 + while (pixels_left > 0) {
11603 + /* 0x2c = write_memory_start */
11604 + /* 0x3c = write_memory_continue */
11605 + u8 dcs_cmd = first ? 0x2c : 0x3c;
11606 + int pixels;
11607 + DSI_DECL_VARS;
11608 + first = 0;
11609 +
11610 +#if 1
11611 + /* using fifo not empty */
11612 + /* TX_FIFO_NOT_EMPTY */
11613 + while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
11614 + udelay(1);
11615 + fifo_stalls++;
11616 + if (fifo_stalls > 0xfffff) {
11617 + DSSERR("fifo stalls overflow, pixels left %d\n",
11618 + pixels_left);
11619 + dsi_if_enable(0);
11620 + return -EIO;
11621 + }
11622 + }
11623 +#elif 1
11624 + /* using fifo emptiness */
11625 + while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 <
11626 + max_dsi_packet_size) {
11627 + fifo_stalls++;
11628 + if (fifo_stalls > 0xfffff) {
11629 + DSSERR("fifo stalls overflow, pixels left %d\n",
11630 + pixels_left);
11631 + dsi_if_enable(0);
11632 + return -EIO;
11633 + }
11634 + }
11635 +#else
11636 + while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) {
11637 + fifo_stalls++;
11638 + if (fifo_stalls > 0xfffff) {
11639 + DSSERR("fifo stalls overflow, pixels left %d\n",
11640 + pixels_left);
11641 + dsi_if_enable(0);
11642 + return -EIO;
11643 + }
11644 + }
11645 +#endif
11646 + pixels = min(max_pixels_per_packet, pixels_left);
11647 +
11648 + pixels_left -= pixels;
11649 +
11650 + dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
11651 + 1 + pixels * bytespp, 0);
11652 +
11653 + DSI_PUSH(0, dcs_cmd);
11654 +
11655 + while (pixels-- > 0) {
11656 + u32 pix = __raw_readl(data++);
11657 +
11658 + DSI_PUSH(0, (pix >> 16) & 0xff);
11659 + DSI_PUSH(0, (pix >> 8) & 0xff);
11660 + DSI_PUSH(0, (pix >> 0) & 0xff);
11661 +
11662 + current_x++;
11663 + if (current_x == x+w) {
11664 + current_x = x;
11665 + data += horiz_inc;
11666 + }
11667 + }
11668 +
11669 + DSI_FLUSH(0);
11670 + }
11671 +
11672 + return 0;
11673 +}
11674 +
11675 +static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
11676 + u16 x, u16 y, u16 w, u16 h)
11677 +{
11678 + int bytespp = dssdev->ctrl.pixel_size / 8;
11679 + int len;
11680 + int total_len;
11681 + int packet_payload;
11682 + int packet_len;
11683 + u32 l;
11684 + bool use_te_trigger;
11685 + const int channel = 0;
11686 +
11687 + use_te_trigger = dsi.te_enabled && !dsi.use_ext_te;
11688 +
11689 + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
11690 + DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n",
11691 + x, y, w, h);
11692 +
11693 + len = w * h * bytespp;
11694 +
11695 + /* XXX: one packet could be longer, I think? Line buffer is
11696 + * 1024 x 24bits, but we have to put DCS cmd there also.
11697 + * 1023 * 3 should work, but causes strange color effects. */
11698 + packet_payload = min(w, (u16)1020) * bytespp;
11699 +
11700 + packet_len = packet_payload + 1; /* 1 byte for DCS cmd */
11701 + total_len = (len / packet_payload) * packet_len;
11702 +
11703 + if (len % packet_payload)
11704 + total_len += (len % packet_payload) + 1;
11705 +
11706 + if (0)
11707 + dsi_vc_print_status(1);
11708 +
11709 + l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
11710 + dsi_write_reg(DSI_VC_TE(channel), l);
11711 +
11712 + dsi_vc_write_long_header(channel, DSI_DT_DCS_LONG_WRITE, packet_len, 0);
11713 +
11714 + if (use_te_trigger)
11715 + l = FLD_MOD(l, 1, 30, 30); /* TE_EN */
11716 + else
11717 + l = FLD_MOD(l, 1, 31, 31); /* TE_START */
11718 + dsi_write_reg(DSI_VC_TE(channel), l);
11719 +
11720 + /* We put SIDLEMODE to no-idle for the duration of the transfer,
11721 + * because DSS interrupts are not capable of waking up the CPU and the
11722 + * framedone interrupt could be delayed for quite a long time. I think
11723 + * the same goes for any DSS interrupts, but for some reason I have not
11724 + * seen the problem anywhere else than here.
11725 + */
11726 + dispc_disable_sidle();
11727 +
11728 + dss_start_update(dssdev);
11729 +
11730 + if (use_te_trigger) {
11731 + /* disable LP_RX_TO, so that we can receive TE. Time to wait
11732 + * for TE is longer than the timer allows */
11733 + REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */
11734 +
11735 + dsi_vc_send_bta(channel);
11736 + }
11737 +}
11738 +
11739 +static void dsi_framedone_irq_callback(void *data, u32 mask)
11740 +{
11741 + /* Note: We get FRAMEDONE when DISPC has finished sending pixels and
11742 + * turns itself off. However, DSI still has the pixels in its buffers,
11743 + * and is sending the data.
11744 + */
11745 +
11746 + /* SIDLEMODE back to smart-idle */
11747 + dispc_enable_sidle();
11748 +
11749 + dsi.framedone_received = true;
11750 + wake_up(&dsi.waitqueue);
11751 +}
11752 +
11753 +static void dsi_set_update_region(struct omap_dss_device *dssdev,
11754 + u16 x, u16 y, u16 w, u16 h)
11755 +{
11756 + spin_lock(&dsi.update_lock);
11757 + if (dsi.update_region.dirty) {
11758 + dsi.update_region.x = min(x, dsi.update_region.x);
11759 + dsi.update_region.y = min(y, dsi.update_region.y);
11760 + dsi.update_region.w = max(w, dsi.update_region.w);
11761 + dsi.update_region.h = max(h, dsi.update_region.h);
11762 + } else {
11763 + dsi.update_region.x = x;
11764 + dsi.update_region.y = y;
11765 + dsi.update_region.w = w;
11766 + dsi.update_region.h = h;
11767 + }
11768 +
11769 + dsi.update_region.device = dssdev;
11770 + dsi.update_region.dirty = true;
11771 +
11772 + spin_unlock(&dsi.update_lock);
11773 +
11774 +}
11775 +
11776 +static void dsi_start_auto_update(struct omap_dss_device *dssdev)
11777 +{
11778 + u16 w, h;
11779 + int i;
11780 +
11781 + DSSDBG("starting auto update\n");
11782 +
11783 + /* In automatic mode the overlay settings are applied like on DPI/SDI.
11784 + * Mark the overlays dirty, so that we get the overlays configured, as
11785 + * manual mode has left them in bad shape after config partia planes */
11786 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
11787 + struct omap_overlay *ovl;
11788 + ovl = omap_dss_get_overlay(i);
11789 + if (ovl->manager == dssdev->manager)
11790 + ovl->info_dirty = true;
11791 + }
11792 + dssdev->manager->apply(dssdev->manager);
11793 +
11794 + dssdev->get_resolution(dssdev, &w, &h);
11795 +
11796 + dsi_set_update_region(dssdev, 0, 0, w, h);
11797 +
11798 + dsi_perf_mark_start_auto();
11799 +
11800 + wake_up(&dsi.waitqueue);
11801 +}
11802 +
11803 +static int dsi_set_te(struct omap_dss_device *dssdev, bool enable)
11804 +{
11805 + int r;
11806 + r = dssdev->driver->enable_te(dssdev, enable);
11807 + /* XXX for some reason, DSI TE breaks if we don't wait here.
11808 + * Panel bug? Needs more studying */
11809 + msleep(100);
11810 + return r;
11811 +}
11812 +
11813 +static void dsi_handle_framedone(void)
11814 +{
11815 + int r;
11816 + const int channel = 0;
11817 + bool use_te_trigger;
11818 +
11819 + use_te_trigger = dsi.te_enabled && !dsi.use_ext_te;
11820 +
11821 + if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO)
11822 + DSSDBG("FRAMEDONE\n");
11823 +
11824 + if (use_te_trigger) {
11825 + /* enable LP_RX_TO again after the TE */
11826 + REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */
11827 + }
11828 +
11829 + /* Send BTA after the frame. We need this for the TE to work, as TE
11830 + * trigger is only sent for BTAs without preceding packet. Thus we need
11831 + * to BTA after the pixel packets so that next BTA will cause TE
11832 + * trigger.
11833 + *
11834 + * This is not needed when TE is not in use, but we do it anyway to
11835 + * make sure that the transfer has been completed. It would be more
11836 + * optimal, but more complex, to wait only just before starting next
11837 + * transfer. */
11838 + r = dsi_vc_send_bta_sync(channel);
11839 + if (r)
11840 + DSSERR("BTA after framedone failed\n");
11841 +
11842 +#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
11843 + dispc_fake_vsync_irq();
11844 +#endif
11845 +}
11846 +
11847 +static int dsi_update_thread(void *data)
11848 +{
11849 + unsigned long timeout;
11850 + struct omap_dss_device *device;
11851 + u16 x, y, w, h;
11852 +
11853 + while (1) {
11854 + bool sched;
11855 +
11856 + wait_event_interruptible(dsi.waitqueue,
11857 + dsi.update_mode == OMAP_DSS_UPDATE_AUTO ||
11858 + (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL &&
11859 + dsi.update_region.dirty == true) ||
11860 + kthread_should_stop());
11861 +
11862 + if (kthread_should_stop())
11863 + break;
11864 +
11865 + dsi_bus_lock();
11866 +
11867 + if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED ||
11868 + kthread_should_stop()) {
11869 + dsi_bus_unlock();
11870 + break;
11871 + }
11872 +
11873 + dsi_perf_mark_setup();
11874 +
11875 + if (dsi.update_region.dirty) {
11876 + spin_lock(&dsi.update_lock);
11877 + dsi.active_update_region = dsi.update_region;
11878 + dsi.update_region.dirty = false;
11879 + spin_unlock(&dsi.update_lock);
11880 + }
11881 +
11882 + device = dsi.active_update_region.device;
11883 + x = dsi.active_update_region.x;
11884 + y = dsi.active_update_region.y;
11885 + w = dsi.active_update_region.w;
11886 + h = dsi.active_update_region.h;
11887 +
11888 + if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
11889 +
11890 + if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) {
11891 + dss_setup_partial_planes(device,
11892 + &x, &y, &w, &h);
11893 +#if 1
11894 + /* XXX there seems to be a bug in this driver
11895 + * or OMAP hardware. Some updates with certain
11896 + * widths and x coordinates fail. These widths
11897 + * are always odd, so "fix" it here for now */
11898 + if (w & 1) {
11899 + u16 dw, dh;
11900 + device->get_resolution(device,
11901 + &dw, &dh);
11902 + if (x + w == dw)
11903 + x &= ~1;
11904 + ++w;
11905 +
11906 + dss_setup_partial_planes(device,
11907 + &x, &y, &w, &h);
11908 + }
11909 +#endif
11910 + }
11911 +
11912 + dispc_set_lcd_size(w, h);
11913 + }
11914 +
11915 + if (dsi.active_update_region.dirty) {
11916 + dsi.active_update_region.dirty = false;
11917 + /* XXX TODO we don't need to send the coords, if they
11918 + * are the same that are already programmed to the
11919 + * panel. That should speed up manual update a bit */
11920 + device->driver->setup_update(device, x, y, w, h);
11921 + }
11922 +
11923 + dsi_perf_mark_start();
11924 +
11925 + if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
11926 + dsi_vc_config_vp(0);
11927 +
11928 + if (dsi.te_enabled && dsi.use_ext_te)
11929 + device->driver->wait_for_te(device);
11930 +
11931 + dsi.framedone_received = false;
11932 +
11933 + dsi_update_screen_dispc(device, x, y, w, h);
11934 +
11935 + /* wait for framedone */
11936 + timeout = msecs_to_jiffies(1000);
11937 + timeout = wait_event_timeout(dsi.waitqueue,
11938 + dsi.framedone_received == true,
11939 + timeout);
11940 +
11941 + if (timeout == 0) {
11942 + DSSERR("framedone timeout\n");
11943 + DSSERR("failed update %d,%d %dx%d\n",
11944 + x, y, w, h);
11945 +
11946 + dispc_enable_sidle();
11947 + dispc_enable_lcd_out(0);
11948 + } else {
11949 + dsi_handle_framedone();
11950 + dsi_perf_show("DISPC");
11951 + }
11952 + } else {
11953 + dsi_update_screen_l4(device, x, y, w, h);
11954 + dsi_perf_show("L4");
11955 + }
11956 +
11957 + sched = atomic_read(&dsi.bus_lock.count) < 0;
11958 +
11959 + complete_all(&dsi.update_completion);
11960 +
11961 + dsi_bus_unlock();
11962 +
11963 + /* XXX We need to give others chance to get the bus lock. Is
11964 + * there a better way for this? */
11965 + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO && sched)
11966 + schedule_timeout_interruptible(1);
11967 + }
11968 +
11969 + DSSDBG("update thread exiting\n");
11970 +
11971 + return 0;
11972 +}
11973 +
11974 +
11975 +
11976 +/* Display funcs */
11977 +
11978 +static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
11979 +{
11980 + int r;
11981 +
11982 + r = omap_dispc_register_isr(dsi_framedone_irq_callback, NULL,
11983 + DISPC_IRQ_FRAMEDONE);
11984 + if (r) {
11985 + DSSERR("can't get FRAMEDONE irq\n");
11986 + return r;
11987 + }
11988 +
11989 + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
11990 +
11991 + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI);
11992 + dispc_enable_fifohandcheck(1);
11993 +
11994 + dispc_set_tft_data_lines(dssdev->ctrl.pixel_size);
11995 +
11996 + {
11997 + struct omap_video_timings timings = {
11998 + .hsw = 1,
11999 + .hfp = 1,
12000 + .hbp = 1,
12001 + .vsw = 1,
12002 + .vfp = 0,
12003 + .vbp = 0,
12004 + };
12005 +
12006 + dispc_set_lcd_timings(&timings);
12007 + }
12008 +
12009 + return 0;
12010 +}
12011 +
12012 +static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
12013 +{
12014 + omap_dispc_unregister_isr(dsi_framedone_irq_callback, NULL,
12015 + DISPC_IRQ_FRAMEDONE);
12016 +}
12017 +
12018 +static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
12019 +{
12020 + struct dsi_clock_info cinfo;
12021 + int r;
12022 +
12023 + _dsi_print_reset_status();
12024 +
12025 + r = dsi_pll_init(1, 0);
12026 + if (r)
12027 + goto err0;
12028 +
12029 + r = dsi_pll_calc_ddrfreq(dssdev->phy.dsi.ddr_clk_hz, &cinfo);
12030 + if (r)
12031 + goto err1;
12032 +
12033 + r = dsi_pll_program(&cinfo);
12034 + if (r)
12035 + goto err1;
12036 +
12037 + DSSDBG("PLL OK\n");
12038 +
12039 + r = dsi_complexio_init(dssdev);
12040 + if (r)
12041 + goto err1;
12042 +
12043 + _dsi_print_reset_status();
12044 +
12045 + dsi_proto_timings(dssdev);
12046 + dsi_set_lp_clk_divisor(dssdev);
12047 +
12048 + if (1)
12049 + _dsi_print_reset_status();
12050 +
12051 + r = dsi_proto_config(dssdev);
12052 + if (r)
12053 + goto err2;
12054 +
12055 + /* enable interface */
12056 + dsi_vc_enable(0, 1);
12057 + dsi_if_enable(1);
12058 + dsi_force_tx_stop_mode_io();
12059 +
12060 + if (dssdev->driver->enable) {
12061 + r = dssdev->driver->enable(dssdev);
12062 + if (r)
12063 + goto err3;
12064 + }
12065 +
12066 + /* enable high-speed after initial config */
12067 + dsi_vc_enable_hs(0, 1);
12068 +
12069 + return 0;
12070 +err3:
12071 + dsi_if_enable(0);
12072 +err2:
12073 + dsi_complexio_uninit();
12074 +err1:
12075 + dsi_pll_uninit();
12076 +err0:
12077 + return r;
12078 +}
12079 +
12080 +static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev)
12081 +{
12082 + if (dssdev->driver->disable)
12083 + dssdev->driver->disable(dssdev);
12084 +
12085 + dsi_complexio_uninit();
12086 + dsi_pll_uninit();
12087 +}
12088 +
12089 +static int dsi_core_init(void)
12090 +{
12091 + /* Autoidle */
12092 + REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0);
12093 +
12094 + /* ENWAKEUP */
12095 + REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2);
12096 +
12097 + /* SIDLEMODE smart-idle */
12098 + REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3);
12099 +
12100 + _dsi_initialize_irq();
12101 +
12102 + return 0;
12103 +}
12104 +
12105 +static int dsi_display_enable(struct omap_dss_device *dssdev)
12106 +{
12107 + int r = 0;
12108 +
12109 + DSSDBG("dsi_display_enable\n");
12110 +
12111 + mutex_lock(&dsi.lock);
12112 + dsi_bus_lock();
12113 +
12114 + r = omap_dss_start_device(dssdev);
12115 + if (r) {
12116 + DSSERR("failed to start device\n");
12117 + goto err0;
12118 + }
12119 +
12120 + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
12121 + DSSERR("dssdev already enabled\n");
12122 + r = -EINVAL;
12123 + goto err1;
12124 + }
12125 +
12126 + enable_clocks(1);
12127 + dsi_enable_pll_clock(1);
12128 +
12129 + r = _dsi_reset();
12130 + if (r)
12131 + goto err2;
12132 +
12133 + dsi_core_init();
12134 +
12135 + r = dsi_display_init_dispc(dssdev);
12136 + if (r)
12137 + goto err2;
12138 +
12139 + r = dsi_display_init_dsi(dssdev);
12140 + if (r)
12141 + goto err3;
12142 +
12143 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
12144 +
12145 + dsi.use_ext_te = dssdev->phy.dsi.ext_te;
12146 + r = dsi_set_te(dssdev, dsi.te_enabled);
12147 + if (r)
12148 + goto err3;
12149 +
12150 + dsi.update_mode = dsi.user_update_mode;
12151 + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
12152 + dsi_start_auto_update(dssdev);
12153 +
12154 + dsi_bus_unlock();
12155 + mutex_unlock(&dsi.lock);
12156 +
12157 + return 0;
12158 +
12159 +err3:
12160 + dsi_display_uninit_dispc(dssdev);
12161 +err2:
12162 + enable_clocks(0);
12163 + dsi_enable_pll_clock(0);
12164 +err1:
12165 + omap_dss_stop_device(dssdev);
12166 +err0:
12167 + dsi_bus_unlock();
12168 + mutex_unlock(&dsi.lock);
12169 + DSSDBG("dsi_display_enable FAILED\n");
12170 + return r;
12171 +}
12172 +
12173 +static void dsi_display_disable(struct omap_dss_device *dssdev)
12174 +{
12175 + DSSDBG("dsi_display_disable\n");
12176 +
12177 + mutex_lock(&dsi.lock);
12178 + dsi_bus_lock();
12179 +
12180 + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
12181 + dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
12182 + goto end;
12183 +
12184 + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
12185 + dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
12186 +
12187 + dsi_display_uninit_dispc(dssdev);
12188 +
12189 + dsi_display_uninit_dsi(dssdev);
12190 +
12191 + enable_clocks(0);
12192 + dsi_enable_pll_clock(0);
12193 +
12194 + omap_dss_stop_device(dssdev);
12195 +end:
12196 + dsi_bus_unlock();
12197 + mutex_unlock(&dsi.lock);
12198 +}
12199 +
12200 +static int dsi_display_suspend(struct omap_dss_device *dssdev)
12201 +{
12202 + DSSDBG("dsi_display_suspend\n");
12203 +
12204 + mutex_lock(&dsi.lock);
12205 + dsi_bus_lock();
12206 +
12207 + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
12208 + dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
12209 + goto end;
12210 +
12211 + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
12212 + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
12213 +
12214 + dsi_display_uninit_dispc(dssdev);
12215 +
12216 + dsi_display_uninit_dsi(dssdev);
12217 +
12218 + enable_clocks(0);
12219 + dsi_enable_pll_clock(0);
12220 +end:
12221 + dsi_bus_unlock();
12222 + mutex_unlock(&dsi.lock);
12223 +
12224 + return 0;
12225 +}
12226 +
12227 +static int dsi_display_resume(struct omap_dss_device *dssdev)
12228 +{
12229 + int r;
12230 +
12231 + DSSDBG("dsi_display_resume\n");
12232 +
12233 + mutex_lock(&dsi.lock);
12234 + dsi_bus_lock();
12235 +
12236 + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
12237 + DSSERR("dssdev not suspended\n");
12238 + r = -EINVAL;
12239 + goto err0;
12240 + }
12241 +
12242 + enable_clocks(1);
12243 + dsi_enable_pll_clock(1);
12244 +
12245 + r = _dsi_reset();
12246 + if (r)
12247 + goto err1;
12248 +
12249 + dsi_core_init();
12250 +
12251 + r = dsi_display_init_dispc(dssdev);
12252 + if (r)
12253 + goto err1;
12254 +
12255 + r = dsi_display_init_dsi(dssdev);
12256 + if (r)
12257 + goto err2;
12258 +
12259 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
12260 +
12261 + r = dsi_set_te(dssdev, dsi.te_enabled);
12262 + if (r)
12263 + goto err2;
12264 +
12265 + dsi.update_mode = dsi.user_update_mode;
12266 + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
12267 + dsi_start_auto_update(dssdev);
12268 +
12269 + dsi_bus_unlock();
12270 + mutex_unlock(&dsi.lock);
12271 +
12272 + return 0;
12273 +
12274 +err2:
12275 + dsi_display_uninit_dispc(dssdev);
12276 +err1:
12277 + enable_clocks(0);
12278 + dsi_enable_pll_clock(0);
12279 +err0:
12280 + dsi_bus_unlock();
12281 + mutex_unlock(&dsi.lock);
12282 + DSSDBG("dsi_display_resume FAILED\n");
12283 + return r;
12284 +}
12285 +
12286 +static int dsi_display_update(struct omap_dss_device *dssdev,
12287 + u16 x, u16 y, u16 w, u16 h)
12288 +{
12289 + int r = 0;
12290 + u16 dw, dh;
12291 +
12292 + DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h);
12293 +
12294 + mutex_lock(&dsi.lock);
12295 +
12296 + if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL)
12297 + goto end;
12298 +
12299 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
12300 + goto end;
12301 +
12302 + dssdev->get_resolution(dssdev, &dw, &dh);
12303 +
12304 + if (x > dw || y > dh)
12305 + goto end;
12306 +
12307 + if (x + w > dw)
12308 + w = dw - x;
12309 +
12310 + if (y + h > dh)
12311 + h = dh - y;
12312 +
12313 + if (w == 0 || h == 0)
12314 + goto end;
12315 +
12316 + dsi_set_update_region(dssdev, x, y, w, h);
12317 +
12318 + wake_up(&dsi.waitqueue);
12319 +
12320 +end:
12321 + mutex_unlock(&dsi.lock);
12322 +
12323 + return r;
12324 +}
12325 +
12326 +static int dsi_display_sync(struct omap_dss_device *dssdev)
12327 +{
12328 + bool wait;
12329 +
12330 + DSSDBG("dsi_display_sync()\n");
12331 +
12332 + mutex_lock(&dsi.lock);
12333 + dsi_bus_lock();
12334 +
12335 + if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL &&
12336 + dsi.update_region.dirty) {
12337 + INIT_COMPLETION(dsi.update_completion);
12338 + wait = true;
12339 + } else {
12340 + wait = false;
12341 + }
12342 +
12343 + dsi_bus_unlock();
12344 + mutex_unlock(&dsi.lock);
12345 +
12346 + if (wait)
12347 + wait_for_completion_interruptible(&dsi.update_completion);
12348 +
12349 + DSSDBG("dsi_display_sync() done\n");
12350 + return 0;
12351 +}
12352 +
12353 +static int dsi_display_set_update_mode(struct omap_dss_device *dssdev,
12354 + enum omap_dss_update_mode mode)
12355 +{
12356 + DSSDBGF("%d", mode);
12357 +
12358 + mutex_lock(&dsi.lock);
12359 + dsi_bus_lock();
12360 +
12361 + if (dsi.update_mode != mode) {
12362 + dsi.user_update_mode = mode;
12363 + dsi.update_mode = mode;
12364 +
12365 + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE &&
12366 + mode == OMAP_DSS_UPDATE_AUTO)
12367 + dsi_start_auto_update(dssdev);
12368 + }
12369 +
12370 + dsi_bus_unlock();
12371 + mutex_unlock(&dsi.lock);
12372 +
12373 + return 0;
12374 +}
12375 +
12376 +static enum omap_dss_update_mode dsi_display_get_update_mode(
12377 + struct omap_dss_device *dssdev)
12378 +{
12379 + return dsi.update_mode;
12380 +}
12381 +
12382 +
12383 +static int dsi_display_enable_te(struct omap_dss_device *dssdev, bool enable)
12384 +{
12385 + int r = 0;
12386 +
12387 + DSSDBGF("%d", enable);
12388 +
12389 + if (!dssdev->driver->enable_te)
12390 + return -ENOENT;
12391 +
12392 + dsi_bus_lock();
12393 +
12394 + dsi.te_enabled = enable;
12395 +
12396 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
12397 + goto end;
12398 +
12399 + r = dsi_set_te(dssdev, enable);
12400 +end:
12401 + dsi_bus_unlock();
12402 +
12403 + return r;
12404 +}
12405 +
12406 +static int dsi_display_get_te(struct omap_dss_device *dssdev)
12407 +{
12408 + return dsi.te_enabled;
12409 +}
12410 +
12411 +static int dsi_display_set_rotate(struct omap_dss_device *dssdev, u8 rotate)
12412 +{
12413 +
12414 + DSSDBGF("%d", rotate);
12415 +
12416 + if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
12417 + return -EINVAL;
12418 +
12419 + dsi_bus_lock();
12420 + dssdev->driver->set_rotate(dssdev, rotate);
12421 + if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
12422 + u16 w, h;
12423 + /* the display dimensions may have changed, so set a new
12424 + * update region */
12425 + dssdev->get_resolution(dssdev, &w, &h);
12426 + dsi_set_update_region(dssdev, 0, 0, w, h);
12427 + }
12428 + dsi_bus_unlock();
12429 +
12430 + return 0;
12431 +}
12432 +
12433 +static u8 dsi_display_get_rotate(struct omap_dss_device *dssdev)
12434 +{
12435 + if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
12436 + return 0;
12437 +
12438 + return dssdev->driver->get_rotate(dssdev);
12439 +}
12440 +
12441 +static int dsi_display_set_mirror(struct omap_dss_device *dssdev, bool mirror)
12442 +{
12443 + DSSDBGF("%d", mirror);
12444 +
12445 + if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
12446 + return -EINVAL;
12447 +
12448 + dsi_bus_lock();
12449 + dssdev->driver->set_mirror(dssdev, mirror);
12450 + dsi_bus_unlock();
12451 +
12452 + return 0;
12453 +}
12454 +
12455 +static bool dsi_display_get_mirror(struct omap_dss_device *dssdev)
12456 +{
12457 + if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
12458 + return 0;
12459 +
12460 + return dssdev->driver->get_mirror(dssdev);
12461 +}
12462 +
12463 +static int dsi_display_run_test(struct omap_dss_device *dssdev, int test_num)
12464 +{
12465 + int r;
12466 +
12467 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
12468 + return -EIO;
12469 +
12470 + DSSDBGF("%d", test_num);
12471 +
12472 + dsi_bus_lock();
12473 +
12474 + /* run test first in low speed mode */
12475 + dsi_vc_enable_hs(0, 0);
12476 +
12477 + if (dssdev->driver->run_test) {
12478 + r = dssdev->driver->run_test(dssdev, test_num);
12479 + if (r)
12480 + goto end;
12481 + }
12482 +
12483 + /* then in high speed */
12484 + dsi_vc_enable_hs(0, 1);
12485 +
12486 + if (dssdev->driver->run_test) {
12487 + r = dssdev->driver->run_test(dssdev, test_num);
12488 + if (r)
12489 + goto end;
12490 + }
12491 +
12492 +end:
12493 + dsi_vc_enable_hs(0, 1);
12494 +
12495 + dsi_bus_unlock();
12496 +
12497 + return r;
12498 +}
12499 +
12500 +static int dsi_display_memory_read(struct omap_dss_device *dssdev,
12501 + void *buf, size_t size,
12502 + u16 x, u16 y, u16 w, u16 h)
12503 +{
12504 + int r;
12505 +
12506 + DSSDBGF("");
12507 +
12508 + if (!dssdev->driver->memory_read)
12509 + return -EINVAL;
12510 +
12511 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
12512 + return -EIO;
12513 +
12514 + dsi_bus_lock();
12515 +
12516 + r = dssdev->driver->memory_read(dssdev, buf, size,
12517 + x, y, w, h);
12518 +
12519 + dsi_bus_unlock();
12520 +
12521 + return r;
12522 +}
12523 +
12524 +void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
12525 + u32 fifo_size, enum omap_burst_size *burst_size,
12526 + u32 *fifo_low, u32 *fifo_high)
12527 +{
12528 + unsigned burst_size_bytes;
12529 +
12530 + *burst_size = OMAP_DSS_BURST_16x32;
12531 + burst_size_bytes = 16 * 32 / 8;
12532 +
12533 + *fifo_high = fifo_size - burst_size_bytes;
12534 + *fifo_low = 0;
12535 +}
12536 +
12537 +int dsi_init_display(struct omap_dss_device *dssdev)
12538 +{
12539 + DSSDBG("DSI init\n");
12540 +
12541 + dssdev->enable = dsi_display_enable;
12542 + dssdev->disable = dsi_display_disable;
12543 + dssdev->suspend = dsi_display_suspend;
12544 + dssdev->resume = dsi_display_resume;
12545 + dssdev->update = dsi_display_update;
12546 + dssdev->sync = dsi_display_sync;
12547 + dssdev->set_update_mode = dsi_display_set_update_mode;
12548 + dssdev->get_update_mode = dsi_display_get_update_mode;
12549 + dssdev->enable_te = dsi_display_enable_te;
12550 + dssdev->get_te = dsi_display_get_te;
12551 +
12552 + dssdev->get_rotate = dsi_display_get_rotate;
12553 + dssdev->set_rotate = dsi_display_set_rotate;
12554 +
12555 + dssdev->get_mirror = dsi_display_get_mirror;
12556 + dssdev->set_mirror = dsi_display_set_mirror;
12557 +
12558 + dssdev->run_test = dsi_display_run_test;
12559 + dssdev->memory_read = dsi_display_memory_read;
12560 +
12561 + dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
12562 +
12563 + dsi.vc[0].dssdev = dssdev;
12564 + dsi.vc[1].dssdev = dssdev;
12565 +
12566 + return 0;
12567 +}
12568 +
12569 +int dsi_init(struct platform_device *pdev)
12570 +{
12571 + u32 rev;
12572 + struct sched_param param = {
12573 + .sched_priority = MAX_USER_RT_PRIO-1
12574 + };
12575 +
12576 + spin_lock_init(&dsi.errors_lock);
12577 + dsi.errors = 0;
12578 +
12579 + /* XXX fail properly */
12580 +
12581 + init_completion(&dsi.bta_completion);
12582 + init_completion(&dsi.update_completion);
12583 +
12584 + dsi.thread = kthread_create(dsi_update_thread, NULL, "dsi");
12585 + if (IS_ERR(dsi.thread)) {
12586 + DSSERR("cannot create kthread\n");
12587 + return PTR_ERR(dsi.thread);
12588 + }
12589 + sched_setscheduler(dsi.thread, SCHED_FIFO, &param);
12590 +
12591 + init_waitqueue_head(&dsi.waitqueue);
12592 + spin_lock_init(&dsi.update_lock);
12593 +
12594 + mutex_init(&dsi.lock);
12595 + mutex_init(&dsi.bus_lock);
12596 +
12597 + dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
12598 + dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED;
12599 +
12600 + dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS);
12601 + if (!dsi.base) {
12602 + DSSERR("can't ioremap DSI\n");
12603 + return -ENOMEM;
12604 + }
12605 +
12606 + dsi.vdds_dsi_reg = regulator_get(&pdev->dev, "vdds_dsi");
12607 + if (IS_ERR(dsi.vdds_dsi_reg)) {
12608 + iounmap(dsi.base);
12609 + DSSERR("can't get VDDS_DSI regulator\n");
12610 + return PTR_ERR(dsi.vdds_dsi_reg);
12611 + }
12612 +
12613 + enable_clocks(1);
12614 +
12615 + rev = dsi_read_reg(DSI_REVISION);
12616 + printk(KERN_INFO "OMAP DSI rev %d.%d\n",
12617 + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
12618 +
12619 + enable_clocks(0);
12620 +
12621 + wake_up_process(dsi.thread);
12622 +
12623 + return 0;
12624 +}
12625 +
12626 +void dsi_exit(void)
12627 +{
12628 + kthread_stop(dsi.thread);
12629 +
12630 + regulator_put(dsi.vdds_dsi_reg);
12631 +
12632 + iounmap(dsi.base);
12633 +
12634 + DSSDBG("omap_dsi_exit\n");
12635 +}
12636 +
12637 --- /dev/null
12638 +++ b/drivers/video/omap2/dss/dss.c
12639 @@ -0,0 +1,347 @@
12640 +/*
12641 + * linux/drivers/video/omap2/dss/dss.c
12642 + *
12643 + * Copyright (C) 2009 Nokia Corporation
12644 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
12645 + *
12646 + * Some code and ideas taken from drivers/video/omap/ driver
12647 + * by Imre Deak.
12648 + *
12649 + * This program is free software; you can redistribute it and/or modify it
12650 + * under the terms of the GNU General Public License version 2 as published by
12651 + * the Free Software Foundation.
12652 + *
12653 + * This program is distributed in the hope that it will be useful, but WITHOUT
12654 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12655 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12656 + * more details.
12657 + *
12658 + * You should have received a copy of the GNU General Public License along with
12659 + * this program. If not, see <http://www.gnu.org/licenses/>.
12660 + */
12661 +
12662 +#define DSS_SUBSYS_NAME "DSS"
12663 +
12664 +#include <linux/kernel.h>
12665 +#include <linux/io.h>
12666 +#include <linux/err.h>
12667 +#include <linux/delay.h>
12668 +#include <linux/interrupt.h>
12669 +#include <linux/seq_file.h>
12670 +
12671 +#include <mach/display.h>
12672 +#include "dss.h"
12673 +
12674 +#define DSS_BASE 0x48050000
12675 +
12676 +#define DSS_SZ_REGS SZ_512
12677 +
12678 +struct dss_reg {
12679 + u16 idx;
12680 +};
12681 +
12682 +#define DSS_REG(idx) ((const struct dss_reg) { idx })
12683 +
12684 +#define DSS_REVISION DSS_REG(0x0000)
12685 +#define DSS_SYSCONFIG DSS_REG(0x0010)
12686 +#define DSS_SYSSTATUS DSS_REG(0x0014)
12687 +#define DSS_IRQSTATUS DSS_REG(0x0018)
12688 +#define DSS_CONTROL DSS_REG(0x0040)
12689 +#define DSS_SDI_CONTROL DSS_REG(0x0044)
12690 +#define DSS_PLL_CONTROL DSS_REG(0x0048)
12691 +#define DSS_SDI_STATUS DSS_REG(0x005C)
12692 +
12693 +#define REG_GET(idx, start, end) \
12694 + FLD_GET(dss_read_reg(idx), start, end)
12695 +
12696 +#define REG_FLD_MOD(idx, val, start, end) \
12697 + dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end))
12698 +
12699 +static struct {
12700 + void __iomem *base;
12701 +
12702 + u32 ctx[DSS_SZ_REGS / sizeof(u32)];
12703 +} dss;
12704 +
12705 +static int _omap_dss_wait_reset(void);
12706 +
12707 +static inline void dss_write_reg(const struct dss_reg idx, u32 val)
12708 +{
12709 + __raw_writel(val, dss.base + idx.idx);
12710 +}
12711 +
12712 +static inline u32 dss_read_reg(const struct dss_reg idx)
12713 +{
12714 + return __raw_readl(dss.base + idx.idx);
12715 +}
12716 +
12717 +#define SR(reg) \
12718 + dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg)
12719 +#define RR(reg) \
12720 + dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)])
12721 +
12722 +void dss_save_context(void)
12723 +{
12724 + if (cpu_is_omap24xx())
12725 + return;
12726 +
12727 + SR(SYSCONFIG);
12728 + SR(CONTROL);
12729 +
12730 +#ifdef CONFIG_OMAP2_DSS_SDI
12731 + SR(SDI_CONTROL);
12732 + SR(PLL_CONTROL);
12733 +#endif
12734 +}
12735 +
12736 +void dss_restore_context(void)
12737 +{
12738 + if (_omap_dss_wait_reset())
12739 + DSSERR("DSS not coming out of reset after sleep\n");
12740 +
12741 + RR(SYSCONFIG);
12742 + RR(CONTROL);
12743 +
12744 +#ifdef CONFIG_OMAP2_DSS_SDI
12745 + RR(SDI_CONTROL);
12746 + RR(PLL_CONTROL);
12747 +#endif
12748 +}
12749 +
12750 +#undef SR
12751 +#undef RR
12752 +
12753 +void dss_sdi_init(u8 datapairs)
12754 +{
12755 + u32 l;
12756 +
12757 + BUG_ON(datapairs > 3 || datapairs < 1);
12758 +
12759 + l = dss_read_reg(DSS_SDI_CONTROL);
12760 + l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */
12761 + l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */
12762 + l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */
12763 + dss_write_reg(DSS_SDI_CONTROL, l);
12764 +
12765 + l = dss_read_reg(DSS_PLL_CONTROL);
12766 + l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */
12767 + l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */
12768 + l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */
12769 + dss_write_reg(DSS_PLL_CONTROL, l);
12770 +}
12771 +
12772 +void dss_sdi_enable(void)
12773 +{
12774 + dispc_pck_free_enable(1);
12775 +
12776 + /* Reset SDI PLL */
12777 + REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */
12778 + udelay(1); /* wait 2x PCLK */
12779 +
12780 + /* Lock SDI PLL */
12781 + REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */
12782 +
12783 + /* Waiting for PLL lock request to complete */
12784 + while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6))
12785 + ;
12786 +
12787 + /* Clearing PLL_GO bit */
12788 + REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28);
12789 +
12790 + /* Waiting for PLL to lock */
12791 + while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5)))
12792 + ;
12793 +
12794 + dispc_lcd_enable_signal(1);
12795 +
12796 + /* Waiting for SDI reset to complete */
12797 + while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2)))
12798 + ;
12799 +}
12800 +
12801 +void dss_sdi_disable(void)
12802 +{
12803 + dispc_lcd_enable_signal(0);
12804 +
12805 + dispc_pck_free_enable(0);
12806 +
12807 + /* Reset SDI PLL */
12808 + REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */
12809 +}
12810 +
12811 +void dss_dump_regs(struct seq_file *s)
12812 +{
12813 +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
12814 +
12815 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
12816 +
12817 + DUMPREG(DSS_REVISION);
12818 + DUMPREG(DSS_SYSCONFIG);
12819 + DUMPREG(DSS_SYSSTATUS);
12820 + DUMPREG(DSS_IRQSTATUS);
12821 + DUMPREG(DSS_CONTROL);
12822 + DUMPREG(DSS_SDI_CONTROL);
12823 + DUMPREG(DSS_PLL_CONTROL);
12824 + DUMPREG(DSS_SDI_STATUS);
12825 +
12826 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
12827 +#undef DUMPREG
12828 +}
12829 +
12830 +void dss_select_clk_source(bool dsi, bool dispc)
12831 +{
12832 + u32 r;
12833 + r = dss_read_reg(DSS_CONTROL);
12834 + r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */
12835 + r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */
12836 + dss_write_reg(DSS_CONTROL, r);
12837 +}
12838 +
12839 +int dss_get_dsi_clk_source(void)
12840 +{
12841 + return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1);
12842 +}
12843 +
12844 +int dss_get_dispc_clk_source(void)
12845 +{
12846 + return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0);
12847 +}
12848 +
12849 +static irqreturn_t dss_irq_handler_omap2(int irq, void *arg)
12850 +{
12851 + dispc_irq_handler();
12852 +
12853 + return IRQ_HANDLED;
12854 +}
12855 +
12856 +static irqreturn_t dss_irq_handler_omap3(int irq, void *arg)
12857 +{
12858 + u32 irqstatus;
12859 +
12860 + irqstatus = dss_read_reg(DSS_IRQSTATUS);
12861 +
12862 + if (irqstatus & (1<<0)) /* DISPC_IRQ */
12863 + dispc_irq_handler();
12864 +#ifdef CONFIG_OMAP2_DSS_DSI
12865 + if (irqstatus & (1<<1)) /* DSI_IRQ */
12866 + dsi_irq_handler();
12867 +#endif
12868 +
12869 + return IRQ_HANDLED;
12870 +}
12871 +
12872 +static int _omap_dss_wait_reset(void)
12873 +{
12874 + unsigned timeout = 1000;
12875 +
12876 + while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) {
12877 + udelay(1);
12878 + if (!--timeout) {
12879 + DSSERR("soft reset failed\n");
12880 + return -ENODEV;
12881 + }
12882 + }
12883 +
12884 + return 0;
12885 +}
12886 +
12887 +static int _omap_dss_reset(void)
12888 +{
12889 + /* Soft reset */
12890 + REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1);
12891 + return _omap_dss_wait_reset();
12892 +}
12893 +
12894 +void dss_set_venc_output(enum omap_dss_venc_type type)
12895 +{
12896 + int l = 0;
12897 +
12898 + if (type == OMAP_DSS_VENC_TYPE_COMPOSITE)
12899 + l = 0;
12900 + else if (type == OMAP_DSS_VENC_TYPE_SVIDEO)
12901 + l = 1;
12902 + else
12903 + BUG();
12904 +
12905 + /* venc out selection. 0 = comp, 1 = svideo */
12906 + REG_FLD_MOD(DSS_CONTROL, l, 6, 6);
12907 +}
12908 +
12909 +void dss_set_dac_pwrdn_bgz(bool enable)
12910 +{
12911 + REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */
12912 +}
12913 +
12914 +int dss_init(bool skip_init)
12915 +{
12916 + int r;
12917 + u32 rev;
12918 +
12919 + dss.base = ioremap(DSS_BASE, DSS_SZ_REGS);
12920 + if (!dss.base) {
12921 + DSSERR("can't ioremap DSS\n");
12922 + r = -ENOMEM;
12923 + goto fail0;
12924 + }
12925 +
12926 + if (!skip_init) {
12927 + /* disable LCD and DIGIT output. This seems to fix the synclost
12928 + * problem that we get, if the bootloader starts the DSS and
12929 + * the kernel resets it */
12930 + omap_writel(omap_readl(0x48050440) & ~0x3, 0x48050440);
12931 +
12932 + /* We need to wait here a bit, otherwise we sometimes start to
12933 + * get synclost errors, and after that only power cycle will
12934 + * restore DSS functionality. I have no idea why this happens.
12935 + * And we have to wait _before_ resetting the DSS, but after
12936 + * enabling clocks.
12937 + */
12938 + msleep(50);
12939 +
12940 + _omap_dss_reset();
12941 + }
12942 +
12943 + /* autoidle */
12944 + REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0);
12945 +
12946 + /* Select DPLL */
12947 + REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
12948 +
12949 +#ifdef CONFIG_OMAP2_DSS_VENC
12950 + REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */
12951 + REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */
12952 + REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */
12953 +#endif
12954 +
12955 + r = request_irq(INT_24XX_DSS_IRQ,
12956 + cpu_is_omap24xx()
12957 + ? dss_irq_handler_omap2
12958 + : dss_irq_handler_omap3,
12959 + 0, "OMAP DSS", NULL);
12960 +
12961 + if (r < 0) {
12962 + DSSERR("omap2 dss: request_irq failed\n");
12963 + goto fail1;
12964 + }
12965 +
12966 + dss_save_context();
12967 +
12968 + rev = dss_read_reg(DSS_REVISION);
12969 + printk(KERN_INFO "OMAP DSS rev %d.%d\n",
12970 + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
12971 +
12972 + return 0;
12973 +
12974 +fail1:
12975 + iounmap(dss.base);
12976 +fail0:
12977 + return r;
12978 +}
12979 +
12980 +void dss_exit(void)
12981 +{
12982 + free_irq(INT_24XX_DSS_IRQ, NULL);
12983 +
12984 + iounmap(dss.base);
12985 +}
12986 +
12987 --- /dev/null
12988 +++ b/drivers/video/omap2/dss/dss.h
12989 @@ -0,0 +1,356 @@
12990 +/*
12991 + * linux/drivers/video/omap2/dss/dss.h
12992 + *
12993 + * Copyright (C) 2009 Nokia Corporation
12994 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
12995 + *
12996 + * Some code and ideas taken from drivers/video/omap/ driver
12997 + * by Imre Deak.
12998 + *
12999 + * This program is free software; you can redistribute it and/or modify it
13000 + * under the terms of the GNU General Public License version 2 as published by
13001 + * the Free Software Foundation.
13002 + *
13003 + * This program is distributed in the hope that it will be useful, but WITHOUT
13004 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13005 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13006 + * more details.
13007 + *
13008 + * You should have received a copy of the GNU General Public License along with
13009 + * this program. If not, see <http://www.gnu.org/licenses/>.
13010 + */
13011 +
13012 +#ifndef __OMAP2_DSS_H
13013 +#define __OMAP2_DSS_H
13014 +
13015 +#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT
13016 +#define DEBUG
13017 +#endif
13018 +
13019 +#ifdef DEBUG
13020 +extern unsigned int dss_debug;
13021 +#ifdef DSS_SUBSYS_NAME
13022 +#define DSSDBG(format, ...) \
13023 + if (dss_debug) \
13024 + printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \
13025 + ## __VA_ARGS__)
13026 +#else
13027 +#define DSSDBG(format, ...) \
13028 + if (dss_debug) \
13029 + printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__)
13030 +#endif
13031 +
13032 +#ifdef DSS_SUBSYS_NAME
13033 +#define DSSDBGF(format, ...) \
13034 + if (dss_debug) \
13035 + printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \
13036 + ": %s(" format ")\n", \
13037 + __func__, \
13038 + ## __VA_ARGS__)
13039 +#else
13040 +#define DSSDBGF(format, ...) \
13041 + if (dss_debug) \
13042 + printk(KERN_DEBUG "omapdss: " \
13043 + ": %s(" format ")\n", \
13044 + __func__, \
13045 + ## __VA_ARGS__)
13046 +#endif
13047 +
13048 +#else /* DEBUG */
13049 +#define DSSDBG(format, ...)
13050 +#define DSSDBGF(format, ...)
13051 +#endif
13052 +
13053 +
13054 +#ifdef DSS_SUBSYS_NAME
13055 +#define DSSERR(format, ...) \
13056 + printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
13057 + ## __VA_ARGS__)
13058 +#else
13059 +#define DSSERR(format, ...) \
13060 + printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
13061 +#endif
13062 +
13063 +#ifdef DSS_SUBSYS_NAME
13064 +#define DSSINFO(format, ...) \
13065 + printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
13066 + ## __VA_ARGS__)
13067 +#else
13068 +#define DSSINFO(format, ...) \
13069 + printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
13070 +#endif
13071 +
13072 +#ifdef DSS_SUBSYS_NAME
13073 +#define DSSWARN(format, ...) \
13074 + printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
13075 + ## __VA_ARGS__)
13076 +#else
13077 +#define DSSWARN(format, ...) \
13078 + printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
13079 +#endif
13080 +
13081 +/* OMAP TRM gives bitfields as start:end, where start is the higher bit
13082 + number. For example 7:0 */
13083 +#define FLD_MASK(start, end) (((1 << (start - end + 1)) - 1) << (end))
13084 +#define FLD_VAL(val, start, end) (((val) << end) & FLD_MASK(start, end))
13085 +#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
13086 +#define FLD_MOD(orig, val, start, end) \
13087 + (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
13088 +
13089 +#define DISPC_MAX_FCK 173000000
13090 +
13091 +enum omap_burst_size {
13092 + OMAP_DSS_BURST_4x32 = 0,
13093 + OMAP_DSS_BURST_8x32 = 1,
13094 + OMAP_DSS_BURST_16x32 = 2,
13095 +};
13096 +
13097 +enum omap_parallel_interface_mode {
13098 + OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */
13099 + OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */
13100 + OMAP_DSS_PARALLELMODE_DSI,
13101 +};
13102 +
13103 +enum dss_clock {
13104 + DSS_CLK_ICK = 1 << 0,
13105 + DSS_CLK_FCK1 = 1 << 1,
13106 + DSS_CLK_FCK2 = 1 << 2,
13107 + DSS_CLK_54M = 1 << 3,
13108 + DSS_CLK_96M = 1 << 4,
13109 +};
13110 +
13111 +struct dispc_clock_info {
13112 + /* rates that we get with dividers below */
13113 + unsigned long fck;
13114 + unsigned long lck;
13115 + unsigned long pck;
13116 +
13117 + /* dividers */
13118 + u16 fck_div;
13119 + u16 lck_div;
13120 + u16 pck_div;
13121 +};
13122 +
13123 +struct dsi_clock_info {
13124 + /* rates that we get with dividers below */
13125 + unsigned long fint;
13126 + unsigned long dsiphy;
13127 + unsigned long clkin;
13128 + unsigned long dsi1_pll_fclk;
13129 + unsigned long dsi2_pll_fclk;
13130 + unsigned long lck;
13131 + unsigned long pck;
13132 +
13133 + /* dividers */
13134 + u16 regn;
13135 + u16 regm;
13136 + u16 regm3;
13137 + u16 regm4;
13138 +
13139 + u16 lck_div;
13140 + u16 pck_div;
13141 +
13142 + u8 highfreq;
13143 + bool use_dss2_fck;
13144 +};
13145 +
13146 +struct seq_file;
13147 +struct platform_device;
13148 +
13149 +/* core */
13150 +void dss_clk_enable(enum dss_clock clks);
13151 +void dss_clk_disable(enum dss_clock clks);
13152 +unsigned long dss_clk_get_rate(enum dss_clock clk);
13153 +int dss_need_ctx_restore(void);
13154 +void dss_dump_clocks(struct seq_file *s);
13155 +struct bus_type *dss_get_bus(void);
13156 +
13157 +/* display */
13158 +int dss_suspend_all_devices(void);
13159 +int dss_resume_all_devices(void);
13160 +
13161 +void dss_init_device(struct platform_device *pdev,
13162 + struct omap_dss_device *dssdev);
13163 +void dss_uninit_device(struct platform_device *pdev,
13164 + struct omap_dss_device *dssdev);
13165 +bool dss_use_replication(struct omap_dss_device *dssdev,
13166 + enum omap_color_mode mode);
13167 +void default_get_overlay_fifo_thresholds(enum omap_plane plane,
13168 + u32 fifo_size, enum omap_burst_size *burst_size,
13169 + u32 *fifo_low, u32 *fifo_high);
13170 +
13171 +/* manager */
13172 +int dss_init_overlay_managers(struct platform_device *pdev);
13173 +void dss_uninit_overlay_managers(struct platform_device *pdev);
13174 +int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
13175 +void dss_setup_partial_planes(struct omap_dss_device *dssdev,
13176 + u16 *x, u16 *y, u16 *w, u16 *h);
13177 +void dss_start_update(struct omap_dss_device *dssdev);
13178 +
13179 +/* overlay */
13180 +void dss_init_overlays(struct platform_device *pdev);
13181 +void dss_uninit_overlays(struct platform_device *pdev);
13182 +int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev);
13183 +void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
13184 +#ifdef L4_EXAMPLE
13185 +void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr);
13186 +#endif
13187 +void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
13188 +
13189 +/* DSS */
13190 +int dss_init(bool skip_init);
13191 +void dss_exit(void);
13192 +
13193 +void dss_save_context(void);
13194 +void dss_restore_context(void);
13195 +
13196 +void dss_dump_regs(struct seq_file *s);
13197 +
13198 +void dss_sdi_init(u8 datapairs);
13199 +void dss_sdi_enable(void);
13200 +void dss_sdi_disable(void);
13201 +
13202 +void dss_select_clk_source(bool dsi, bool dispc);
13203 +int dss_get_dsi_clk_source(void);
13204 +int dss_get_dispc_clk_source(void);
13205 +void dss_set_venc_output(enum omap_dss_venc_type type);
13206 +void dss_set_dac_pwrdn_bgz(bool enable);
13207 +
13208 +/* SDI */
13209 +int sdi_init(bool skip_init);
13210 +void sdi_exit(void);
13211 +int sdi_init_display(struct omap_dss_device *display);
13212 +
13213 +/* DSI */
13214 +int dsi_init(struct platform_device *pdev);
13215 +void dsi_exit(void);
13216 +
13217 +void dsi_dump_clocks(struct seq_file *s);
13218 +void dsi_dump_regs(struct seq_file *s);
13219 +
13220 +void dsi_save_context(void);
13221 +void dsi_restore_context(void);
13222 +
13223 +int dsi_init_display(struct omap_dss_device *display);
13224 +void dsi_irq_handler(void);
13225 +unsigned long dsi_get_dsi1_pll_rate(void);
13226 +unsigned long dsi_get_dsi2_pll_rate(void);
13227 +int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck,
13228 + struct dsi_clock_info *cinfo);
13229 +int dsi_pll_program(struct dsi_clock_info *cinfo);
13230 +int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv);
13231 +void dsi_pll_uninit(void);
13232 +void dsi_get_overlay_fifo_thresholds(enum omap_plane plane,
13233 + u32 fifo_size, enum omap_burst_size *burst_size,
13234 + u32 *fifo_low, u32 *fifo_high);
13235 +
13236 +/* DPI */
13237 +int dpi_init(void);
13238 +void dpi_exit(void);
13239 +int dpi_init_display(struct omap_dss_device *dssdev);
13240 +
13241 +/* DISPC */
13242 +int dispc_init(void);
13243 +void dispc_exit(void);
13244 +void dispc_dump_clocks(struct seq_file *s);
13245 +void dispc_dump_regs(struct seq_file *s);
13246 +void dispc_irq_handler(void);
13247 +void dispc_fake_vsync_irq(void);
13248 +
13249 +void dispc_save_context(void);
13250 +void dispc_restore_context(void);
13251 +
13252 +void dispc_enable_sidle(void);
13253 +void dispc_disable_sidle(void);
13254 +
13255 +void dispc_lcd_enable_signal_polarity(bool act_high);
13256 +void dispc_lcd_enable_signal(bool enable);
13257 +void dispc_pck_free_enable(bool enable);
13258 +void dispc_enable_fifohandcheck(bool enable);
13259 +
13260 +void dispc_set_lcd_size(u16 width, u16 height);
13261 +void dispc_set_digit_size(u16 width, u16 height);
13262 +u32 dispc_get_plane_fifo_size(enum omap_plane plane);
13263 +void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high);
13264 +void dispc_enable_fifomerge(bool enable);
13265 +void dispc_set_burst_size(enum omap_plane plane,
13266 + enum omap_burst_size burst_size);
13267 +
13268 +void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr);
13269 +void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr);
13270 +void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y);
13271 +void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height);
13272 +void dispc_set_channel_out(enum omap_plane plane,
13273 + enum omap_channel channel_out);
13274 +
13275 +int dispc_setup_plane(enum omap_plane plane,
13276 + u32 paddr, u16 screen_width,
13277 + u16 pos_x, u16 pos_y,
13278 + u16 width, u16 height,
13279 + u16 out_width, u16 out_height,
13280 + enum omap_color_mode color_mode,
13281 + bool ilace,
13282 + enum omap_dss_rotation_type rotation_type,
13283 + u8 rotation, bool mirror,
13284 + u8 global_alpha);
13285 +
13286 +bool dispc_go_busy(enum omap_channel channel);
13287 +void dispc_go(enum omap_channel channel);
13288 +void dispc_enable_lcd_out(bool enable);
13289 +void dispc_enable_digit_out(bool enable);
13290 +int dispc_enable_plane(enum omap_plane plane, bool enable);
13291 +void dispc_enable_replication(enum omap_plane plane, bool enable);
13292 +
13293 +void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode);
13294 +void dispc_set_tft_data_lines(u8 data_lines);
13295 +void dispc_set_lcd_display_type(enum omap_lcd_display_type type);
13296 +void dispc_set_loadmode(enum omap_dss_load_mode mode);
13297 +
13298 +void dispc_set_default_color(enum omap_channel channel, u32 color);
13299 +u32 dispc_get_default_color(enum omap_channel channel);
13300 +void dispc_set_trans_key(enum omap_channel ch,
13301 + enum omap_dss_trans_key_type type,
13302 + u32 trans_key);
13303 +void dispc_get_trans_key(enum omap_channel ch,
13304 + enum omap_dss_trans_key_type *type,
13305 + u32 *trans_key);
13306 +void dispc_enable_trans_key(enum omap_channel ch, bool enable);
13307 +void dispc_enable_alpha_blending(enum omap_channel ch, bool enable);
13308 +bool dispc_trans_key_enabled(enum omap_channel ch);
13309 +bool dispc_alpha_blending_enabled(enum omap_channel ch);
13310 +
13311 +bool dispc_lcd_timings_ok(struct omap_video_timings *timings);
13312 +void dispc_set_lcd_timings(struct omap_video_timings *timings);
13313 +unsigned long dispc_fclk_rate(void);
13314 +unsigned long dispc_lclk_rate(void);
13315 +unsigned long dispc_pclk_rate(void);
13316 +void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb);
13317 +void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
13318 + u16 *lck_div, u16 *pck_div);
13319 +int dispc_calc_clock_div(bool is_tft, unsigned long req_pck,
13320 + struct dispc_clock_info *cinfo);
13321 +int dispc_set_clock_div(struct dispc_clock_info *cinfo);
13322 +int dispc_get_clock_div(struct dispc_clock_info *cinfo);
13323 +void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div);
13324 +
13325 +
13326 +/* VENC */
13327 +int venc_init(struct platform_device *pdev);
13328 +void venc_exit(void);
13329 +void venc_dump_regs(struct seq_file *s);
13330 +int venc_init_display(struct omap_dss_device *display);
13331 +
13332 +/* RFBI */
13333 +int rfbi_init(void);
13334 +void rfbi_exit(void);
13335 +void rfbi_dump_regs(struct seq_file *s);
13336 +
13337 +int rfbi_configure(int rfbi_module, int bpp, int lines);
13338 +void rfbi_enable_rfbi(bool enable);
13339 +void rfbi_transfer_area(u16 width, u16 height,
13340 + void (callback)(void *data), void *data);
13341 +void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t);
13342 +unsigned long rfbi_get_max_tx_rate(void);
13343 +int rfbi_init_display(struct omap_dss_device *display);
13344 +
13345 +#endif
13346 --- /dev/null
13347 +++ b/drivers/video/omap2/dss/manager.c
13348 @@ -0,0 +1,1487 @@
13349 +/*
13350 + * linux/drivers/video/omap2/dss/manager.c
13351 + *
13352 + * Copyright (C) 2009 Nokia Corporation
13353 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
13354 + *
13355 + * Some code and ideas taken from drivers/video/omap/ driver
13356 + * by Imre Deak.
13357 + *
13358 + * This program is free software; you can redistribute it and/or modify it
13359 + * under the terms of the GNU General Public License version 2 as published by
13360 + * the Free Software Foundation.
13361 + *
13362 + * This program is distributed in the hope that it will be useful, but WITHOUT
13363 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13364 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13365 + * more details.
13366 + *
13367 + * You should have received a copy of the GNU General Public License along with
13368 + * this program. If not, see <http://www.gnu.org/licenses/>.
13369 + */
13370 +
13371 +#define DSS_SUBSYS_NAME "MANAGER"
13372 +
13373 +#include <linux/kernel.h>
13374 +#include <linux/module.h>
13375 +#include <linux/platform_device.h>
13376 +#include <linux/spinlock.h>
13377 +#include <linux/jiffies.h>
13378 +
13379 +#include <mach/display.h>
13380 +#include <mach/cpu.h>
13381 +
13382 +#include "dss.h"
13383 +
13384 +static int num_managers;
13385 +static struct list_head manager_list;
13386 +
13387 +static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
13388 +{
13389 + return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
13390 +}
13391 +
13392 +static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
13393 +{
13394 + return snprintf(buf, PAGE_SIZE, "%s\n",
13395 + mgr->device ? mgr->device->name : "<none>");
13396 +}
13397 +
13398 +static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
13399 + const char *buf, size_t size)
13400 +{
13401 + int r = 0;
13402 + size_t len = size;
13403 + struct omap_dss_device *dssdev = NULL;
13404 +
13405 + int match(struct omap_dss_device *dssdev, void *data)
13406 + {
13407 + const char *str = data;
13408 + return sysfs_streq(dssdev->name, str);
13409 + }
13410 +
13411 + if (buf[size-1] == '\n')
13412 + --len;
13413 +
13414 + if (len > 0)
13415 + dssdev = omap_dss_find_device((void *)buf, match);
13416 +
13417 + if (len > 0 && dssdev == NULL)
13418 + return -EINVAL;
13419 +
13420 + if (dssdev)
13421 + DSSDBG("display %s found\n", dssdev->name);
13422 +
13423 + if (mgr->device) {
13424 + r = mgr->unset_device(mgr);
13425 + if (r) {
13426 + DSSERR("failed to unset display\n");
13427 + goto put_device;
13428 + }
13429 + }
13430 +
13431 + if (dssdev) {
13432 + r = mgr->set_device(mgr, dssdev);
13433 + if (r) {
13434 + DSSERR("failed to set manager\n");
13435 + goto put_device;
13436 + }
13437 +
13438 + r = mgr->apply(mgr);
13439 + if (r) {
13440 + DSSERR("failed to apply dispc config\n");
13441 + goto put_device;
13442 + }
13443 + }
13444 +
13445 +put_device:
13446 + if (dssdev)
13447 + omap_dss_put_device(dssdev);
13448 +
13449 + return r ? r : size;
13450 +}
13451 +
13452 +static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
13453 + char *buf)
13454 +{
13455 + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color);
13456 +}
13457 +
13458 +static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
13459 + const char *buf, size_t size)
13460 +{
13461 + struct omap_overlay_manager_info info;
13462 + u32 color;
13463 + int r;
13464 +
13465 + if (sscanf(buf, "%d", &color) != 1)
13466 + return -EINVAL;
13467 +
13468 + mgr->get_manager_info(mgr, &info);
13469 +
13470 + info.default_color = color;
13471 +
13472 + r = mgr->set_manager_info(mgr, &info);
13473 + if (r)
13474 + return r;
13475 +
13476 + r = mgr->apply(mgr);
13477 + if (r)
13478 + return r;
13479 +
13480 + return size;
13481 +}
13482 +
13483 +static const char *trans_key_type_str[] = {
13484 + "gfx-destination",
13485 + "video-source",
13486 +};
13487 +
13488 +static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
13489 + char *buf)
13490 +{
13491 + enum omap_dss_trans_key_type key_type;
13492 +
13493 + key_type = mgr->info.trans_key_type;
13494 + BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
13495 +
13496 + return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
13497 +}
13498 +
13499 +static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
13500 + const char *buf, size_t size)
13501 +{
13502 + enum omap_dss_trans_key_type key_type;
13503 + struct omap_overlay_manager_info info;
13504 + int r;
13505 +
13506 + for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
13507 + key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
13508 + if (sysfs_streq(buf, trans_key_type_str[key_type]))
13509 + break;
13510 + }
13511 +
13512 + if (key_type == ARRAY_SIZE(trans_key_type_str))
13513 + return -EINVAL;
13514 +
13515 + mgr->get_manager_info(mgr, &info);
13516 +
13517 + info.trans_key_type = key_type;
13518 +
13519 + r = mgr->set_manager_info(mgr, &info);
13520 + if (r)
13521 + return r;
13522 +
13523 + r = mgr->apply(mgr);
13524 + if (r)
13525 + return r;
13526 +
13527 + return size;
13528 +}
13529 +
13530 +static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
13531 + char *buf)
13532 +{
13533 + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key);
13534 +}
13535 +
13536 +static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
13537 + const char *buf, size_t size)
13538 +{
13539 + struct omap_overlay_manager_info info;
13540 + u32 key_value;
13541 + int r;
13542 +
13543 + if (sscanf(buf, "%d", &key_value) != 1)
13544 + return -EINVAL;
13545 +
13546 + mgr->get_manager_info(mgr, &info);
13547 +
13548 + info.trans_key = key_value;
13549 +
13550 + r = mgr->set_manager_info(mgr, &info);
13551 + if (r)
13552 + return r;
13553 +
13554 + r = mgr->apply(mgr);
13555 + if (r)
13556 + return r;
13557 +
13558 + return size;
13559 +}
13560 +
13561 +static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
13562 + char *buf)
13563 +{
13564 + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled);
13565 +}
13566 +
13567 +static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
13568 + const char *buf, size_t size)
13569 +{
13570 + struct omap_overlay_manager_info info;
13571 + int enable;
13572 + int r;
13573 +
13574 + if (sscanf(buf, "%d", &enable) != 1)
13575 + return -EINVAL;
13576 +
13577 + mgr->get_manager_info(mgr, &info);
13578 +
13579 + info.trans_enabled = enable ? true : false;
13580 +
13581 + r = mgr->set_manager_info(mgr, &info);
13582 + if (r)
13583 + return r;
13584 +
13585 + r = mgr->apply(mgr);
13586 + if (r)
13587 + return r;
13588 +
13589 + return size;
13590 +}
13591 +
13592 +static ssize_t manager_alpha_blending_enabled_show(
13593 + struct omap_overlay_manager *mgr, char *buf)
13594 +{
13595 + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled);
13596 +}
13597 +
13598 +static ssize_t manager_alpha_blending_enabled_store(
13599 + struct omap_overlay_manager *mgr,
13600 + const char *buf, size_t size)
13601 +{
13602 + struct omap_overlay_manager_info info;
13603 + int enable;
13604 + int r;
13605 +
13606 + if (sscanf(buf, "%d", &enable) != 1)
13607 + return -EINVAL;
13608 +
13609 + mgr->get_manager_info(mgr, &info);
13610 +
13611 + info.alpha_enabled = enable ? true : false;
13612 +
13613 + r = mgr->set_manager_info(mgr, &info);
13614 + if (r)
13615 + return r;
13616 +
13617 + r = mgr->apply(mgr);
13618 + if (r)
13619 + return r;
13620 +
13621 + return size;
13622 +}
13623 +
13624 +struct manager_attribute {
13625 + struct attribute attr;
13626 + ssize_t (*show)(struct omap_overlay_manager *, char *);
13627 + ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
13628 +};
13629 +
13630 +#define MANAGER_ATTR(_name, _mode, _show, _store) \
13631 + struct manager_attribute manager_attr_##_name = \
13632 + __ATTR(_name, _mode, _show, _store)
13633 +
13634 +static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
13635 +static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
13636 + manager_display_show, manager_display_store);
13637 +static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
13638 + manager_default_color_show, manager_default_color_store);
13639 +static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
13640 + manager_trans_key_type_show, manager_trans_key_type_store);
13641 +static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
13642 + manager_trans_key_value_show, manager_trans_key_value_store);
13643 +static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
13644 + manager_trans_key_enabled_show,
13645 + manager_trans_key_enabled_store);
13646 +static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
13647 + manager_alpha_blending_enabled_show,
13648 + manager_alpha_blending_enabled_store);
13649 +
13650 +
13651 +static struct attribute *manager_sysfs_attrs[] = {
13652 + &manager_attr_name.attr,
13653 + &manager_attr_display.attr,
13654 + &manager_attr_default_color.attr,
13655 + &manager_attr_trans_key_type.attr,
13656 + &manager_attr_trans_key_value.attr,
13657 + &manager_attr_trans_key_enabled.attr,
13658 + &manager_attr_alpha_blending_enabled.attr,
13659 + NULL
13660 +};
13661 +
13662 +static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
13663 + char *buf)
13664 +{
13665 + struct omap_overlay_manager *manager;
13666 + struct manager_attribute *manager_attr;
13667 +
13668 + manager = container_of(kobj, struct omap_overlay_manager, kobj);
13669 + manager_attr = container_of(attr, struct manager_attribute, attr);
13670 +
13671 + if (!manager_attr->show)
13672 + return -ENOENT;
13673 +
13674 + return manager_attr->show(manager, buf);
13675 +}
13676 +
13677 +static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
13678 + const char *buf, size_t size)
13679 +{
13680 + struct omap_overlay_manager *manager;
13681 + struct manager_attribute *manager_attr;
13682 +
13683 + manager = container_of(kobj, struct omap_overlay_manager, kobj);
13684 + manager_attr = container_of(attr, struct manager_attribute, attr);
13685 +
13686 + if (!manager_attr->store)
13687 + return -ENOENT;
13688 +
13689 + return manager_attr->store(manager, buf, size);
13690 +}
13691 +
13692 +static struct sysfs_ops manager_sysfs_ops = {
13693 + .show = manager_attr_show,
13694 + .store = manager_attr_store,
13695 +};
13696 +
13697 +static struct kobj_type manager_ktype = {
13698 + .sysfs_ops = &manager_sysfs_ops,
13699 + .default_attrs = manager_sysfs_attrs,
13700 +};
13701 +
13702 +/*
13703 + * We have 4 levels of cache for the dispc settings. First two are in SW and
13704 + * the latter two in HW.
13705 + *
13706 + * +--------------------+
13707 + * |overlay/manager_info|
13708 + * +--------------------+
13709 + * v
13710 + * apply()
13711 + * v
13712 + * +--------------------+
13713 + * | dss_cache |
13714 + * +--------------------+
13715 + * v
13716 + * configure()
13717 + * v
13718 + * +--------------------+
13719 + * | shadow registers |
13720 + * +--------------------+
13721 + * v
13722 + * VFP or lcd/digit_enable
13723 + * v
13724 + * +--------------------+
13725 + * | registers |
13726 + * +--------------------+
13727 + */
13728 +
13729 +struct overlay_cache_data {
13730 + /* If true, cache changed, but not written to shadow registers. Set
13731 + * in apply(), cleared when registers written. */
13732 + bool dirty;
13733 + /* If true, shadow registers contain changed values not yet in real
13734 + * registers. Set when writing to shadow registers, cleared at
13735 + * VSYNC/EVSYNC */
13736 + bool shadow_dirty;
13737 +
13738 + bool enabled;
13739 +
13740 + u32 paddr;
13741 + void __iomem *vaddr;
13742 + u16 screen_width;
13743 + u16 width;
13744 + u16 height;
13745 + enum omap_color_mode color_mode;
13746 + u8 rotation;
13747 + enum omap_dss_rotation_type rotation_type;
13748 + bool mirror;
13749 +
13750 + u16 pos_x;
13751 + u16 pos_y;
13752 + u16 out_width; /* if 0, out_width == width */
13753 + u16 out_height; /* if 0, out_height == height */
13754 + u8 global_alpha;
13755 +
13756 + enum omap_channel channel;
13757 + bool replication;
13758 + bool ilace;
13759 +
13760 + enum omap_burst_size burst_size;
13761 + u32 fifo_low;
13762 + u32 fifo_high;
13763 +
13764 + bool manual_update;
13765 +};
13766 +
13767 +struct manager_cache_data {
13768 + /* If true, cache changed, but not written to shadow registers. Set
13769 + * in apply(), cleared when registers written. */
13770 + bool dirty;
13771 + /* If true, shadow registers contain changed values not yet in real
13772 + * registers. Set when writing to shadow registers, cleared at
13773 + * VSYNC/EVSYNC */
13774 + bool shadow_dirty;
13775 +
13776 + u32 default_color;
13777 +
13778 + enum omap_dss_trans_key_type trans_key_type;
13779 + u32 trans_key;
13780 + bool trans_enabled;
13781 +
13782 + bool alpha_enabled;
13783 +
13784 + bool manual_upd_display;
13785 + bool manual_update;
13786 + bool do_manual_update;
13787 +
13788 + /* manual update region */
13789 + u16 x, y, w, h;
13790 +};
13791 +
13792 +static struct {
13793 + spinlock_t lock;
13794 + struct overlay_cache_data overlay_cache[3];
13795 + struct manager_cache_data manager_cache[2];
13796 +
13797 + bool irq_enabled;
13798 +} dss_cache;
13799 +
13800 +
13801 +
13802 +static int omap_dss_set_device(struct omap_overlay_manager *mgr,
13803 + struct omap_dss_device *dssdev)
13804 +{
13805 + int i;
13806 + int r;
13807 +
13808 + if (dssdev->manager) {
13809 + DSSERR("display '%s' already has a manager '%s'\n",
13810 + dssdev->name, dssdev->manager->name);
13811 + return -EINVAL;
13812 + }
13813 +
13814 + if ((mgr->supported_displays & dssdev->type) == 0) {
13815 + DSSERR("display '%s' does not support manager '%s'\n",
13816 + dssdev->name, mgr->name);
13817 + return -EINVAL;
13818 + }
13819 +
13820 + for (i = 0; i < mgr->num_overlays; i++) {
13821 + struct omap_overlay *ovl = mgr->overlays[i];
13822 +
13823 + if (ovl->manager != mgr || !ovl->info.enabled)
13824 + continue;
13825 +
13826 + r = dss_check_overlay(ovl, dssdev);
13827 + if (r)
13828 + return r;
13829 + }
13830 +
13831 + dssdev->manager = mgr;
13832 + mgr->device = dssdev;
13833 + mgr->device_changed = true;
13834 +
13835 + return 0;
13836 +}
13837 +
13838 +static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
13839 +{
13840 + if (!mgr->device) {
13841 + DSSERR("failed to unset display, display not set.\n");
13842 + return -EINVAL;
13843 + }
13844 +
13845 + mgr->device->manager = NULL;
13846 + mgr->device = NULL;
13847 + mgr->device_changed = true;
13848 +
13849 + return 0;
13850 +}
13851 +
13852 +static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
13853 +{
13854 + unsigned long timeout = msecs_to_jiffies(500);
13855 + struct manager_cache_data *mc;
13856 + enum omap_channel channel;
13857 + u32 irq;
13858 + int r;
13859 + int i;
13860 +
13861 + if (!mgr->device)
13862 + return 0;
13863 +
13864 + if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) {
13865 + irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
13866 + channel = OMAP_DSS_CHANNEL_DIGIT;
13867 + } else {
13868 + if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
13869 + enum omap_dss_update_mode mode;
13870 + mode = mgr->device->get_update_mode(mgr->device);
13871 + if (mode != OMAP_DSS_UPDATE_AUTO)
13872 + return 0;
13873 +
13874 + irq = DISPC_IRQ_FRAMEDONE;
13875 + } else {
13876 + irq = DISPC_IRQ_VSYNC;
13877 + }
13878 + channel = OMAP_DSS_CHANNEL_LCD;
13879 + }
13880 +
13881 + mc = &dss_cache.manager_cache[mgr->id];
13882 + i = 0;
13883 + while (1) {
13884 + unsigned long flags;
13885 + bool shadow_dirty, dirty;
13886 +
13887 + spin_lock_irqsave(&dss_cache.lock, flags);
13888 + dirty = mc->dirty;
13889 + shadow_dirty = mc->shadow_dirty;
13890 + spin_unlock_irqrestore(&dss_cache.lock, flags);
13891 +
13892 + if (!dirty && !shadow_dirty) {
13893 + r = 0;
13894 + break;
13895 + }
13896 +
13897 + /* 4 iterations is the worst case:
13898 + * 1 - initial iteration, dirty = true (between VFP and VSYNC)
13899 + * 2 - first VSYNC, dirty = true
13900 + * 3 - dirty = false, shadow_dirty = true
13901 + * 4 - shadow_dirty = false */
13902 + if (i++ == 3) {
13903 + DSSERR("mgr(%d)->wait_for_go() not finishing\n",
13904 + mgr->id);
13905 + r = 0;
13906 + break;
13907 + }
13908 +
13909 + r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
13910 + if (r == -ERESTARTSYS)
13911 + break;
13912 +
13913 + if (r) {
13914 + DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
13915 + break;
13916 + }
13917 + }
13918 +
13919 + return r;
13920 +}
13921 +
13922 +int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
13923 +{
13924 + unsigned long timeout = msecs_to_jiffies(500);
13925 + enum omap_channel channel;
13926 + struct overlay_cache_data *oc;
13927 + struct omap_dss_device *dssdev;
13928 + u32 irq;
13929 + int r;
13930 + int i;
13931 +
13932 + if (!ovl->manager || !ovl->manager->device)
13933 + return 0;
13934 +
13935 + dssdev = ovl->manager->device;
13936 +
13937 + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
13938 + irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
13939 + channel = OMAP_DSS_CHANNEL_DIGIT;
13940 + } else {
13941 + if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
13942 + enum omap_dss_update_mode mode;
13943 + mode = dssdev->get_update_mode(dssdev);
13944 + if (mode != OMAP_DSS_UPDATE_AUTO)
13945 + return 0;
13946 +
13947 + irq = DISPC_IRQ_FRAMEDONE;
13948 + } else {
13949 + irq = DISPC_IRQ_VSYNC;
13950 + }
13951 + channel = OMAP_DSS_CHANNEL_LCD;
13952 + }
13953 +
13954 + oc = &dss_cache.overlay_cache[ovl->id];
13955 + i = 0;
13956 + while (1) {
13957 + unsigned long flags;
13958 + bool shadow_dirty, dirty;
13959 +
13960 + spin_lock_irqsave(&dss_cache.lock, flags);
13961 + dirty = oc->dirty;
13962 + shadow_dirty = oc->shadow_dirty;
13963 + spin_unlock_irqrestore(&dss_cache.lock, flags);
13964 +
13965 + if (!dirty && !shadow_dirty) {
13966 + r = 0;
13967 + break;
13968 + }
13969 +
13970 + /* 4 iterations is the worst case:
13971 + * 1 - initial iteration, dirty = true (between VFP and VSYNC)
13972 + * 2 - first VSYNC, dirty = true
13973 + * 3 - dirty = false, shadow_dirty = true
13974 + * 4 - shadow_dirty = false */
13975 + if (i++ == 3) {
13976 + DSSERR("ovl(%d)->wait_for_go() not finishing\n",
13977 + ovl->id);
13978 + r = 0;
13979 + break;
13980 + }
13981 +
13982 + r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
13983 + if (r == -ERESTARTSYS)
13984 + break;
13985 +
13986 + if (r) {
13987 + DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
13988 + break;
13989 + }
13990 + }
13991 +
13992 + return r;
13993 +}
13994 +
13995 +static int overlay_enabled(struct omap_overlay *ovl)
13996 +{
13997 + return ovl->info.enabled && ovl->manager && ovl->manager->device;
13998 +}
13999 +
14000 +/* Is rect1 a subset of rect2? */
14001 +static bool rectangle_subset(int x1, int y1, int w1, int h1,
14002 + int x2, int y2, int w2, int h2)
14003 +{
14004 + if (x1 < x2 || y1 < y2)
14005 + return false;
14006 +
14007 + if (x1 + w1 > x2 + w2)
14008 + return false;
14009 +
14010 + if (y1 + h1 > y2 + h2)
14011 + return false;
14012 +
14013 + return true;
14014 +}
14015 +
14016 +/* Do rect1 and rect2 overlap? */
14017 +static bool rectangle_intersects(int x1, int y1, int w1, int h1,
14018 + int x2, int y2, int w2, int h2)
14019 +{
14020 + if (x1 >= x2 + w2)
14021 + return false;
14022 +
14023 + if (x2 >= x1 + w1)
14024 + return false;
14025 +
14026 + if (y1 >= y2 + h2)
14027 + return false;
14028 +
14029 + if (y2 >= y1 + h1)
14030 + return false;
14031 +
14032 + return true;
14033 +}
14034 +
14035 +static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc)
14036 +{
14037 + if (oc->out_width != 0 && oc->width != oc->out_width)
14038 + return true;
14039 +
14040 + if (oc->out_height != 0 && oc->height != oc->out_height)
14041 + return true;
14042 +
14043 + return false;
14044 +}
14045 +
14046 +static int configure_overlay(enum omap_plane plane)
14047 +{
14048 + struct overlay_cache_data *c;
14049 + struct manager_cache_data *mc;
14050 + u16 outw, outh;
14051 + u16 x, y, w, h;
14052 + u32 paddr;
14053 + int r;
14054 +
14055 + DSSDBGF("%d", plane);
14056 +
14057 + c = &dss_cache.overlay_cache[plane];
14058 +
14059 + if (!c->enabled) {
14060 + dispc_enable_plane(plane, 0);
14061 + return 0;
14062 + }
14063 +
14064 + mc = &dss_cache.manager_cache[c->channel];
14065 +
14066 + x = c->pos_x;
14067 + y = c->pos_y;
14068 + w = c->width;
14069 + h = c->height;
14070 + outw = c->out_width == 0 ? c->width : c->out_width;
14071 + outh = c->out_height == 0 ? c->height : c->out_height;
14072 + paddr = c->paddr;
14073 +
14074 + if (c->manual_update && mc->do_manual_update) {
14075 + unsigned bpp;
14076 + /* If the overlay is outside the update region, disable it */
14077 + if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
14078 + x, y, outw, outh)) {
14079 + dispc_enable_plane(plane, 0);
14080 + return 0;
14081 + }
14082 +
14083 + switch (c->color_mode) {
14084 + case OMAP_DSS_COLOR_RGB16:
14085 + case OMAP_DSS_COLOR_ARGB16:
14086 + case OMAP_DSS_COLOR_YUV2:
14087 + case OMAP_DSS_COLOR_UYVY:
14088 + bpp = 16;
14089 + break;
14090 +
14091 + case OMAP_DSS_COLOR_RGB24P:
14092 + bpp = 24;
14093 + break;
14094 +
14095 + case OMAP_DSS_COLOR_RGB24U:
14096 + case OMAP_DSS_COLOR_ARGB32:
14097 + case OMAP_DSS_COLOR_RGBA32:
14098 + case OMAP_DSS_COLOR_RGBX32:
14099 + bpp = 32;
14100 + break;
14101 +
14102 + default:
14103 + BUG();
14104 + }
14105 +
14106 + if (dispc_is_overlay_scaled(c)) {
14107 + /* If the overlay is scaled, the update area has
14108 + * already been enlarged to cover the whole overlay. We
14109 + * only need to adjust x/y here */
14110 + x = c->pos_x - mc->x;
14111 + y = c->pos_y - mc->y;
14112 + } else {
14113 + if (mc->x > c->pos_x) {
14114 + x = 0;
14115 + w -= (mc->x - c->pos_x);
14116 + paddr += (mc->x - c->pos_x) * bpp / 8;
14117 + } else {
14118 + x = c->pos_x - mc->x;
14119 + }
14120 +
14121 + if (mc->y > c->pos_y) {
14122 + y = 0;
14123 + h -= (mc->y - c->pos_y);
14124 + paddr += (mc->y - c->pos_y) * c->screen_width *
14125 + bpp / 8;
14126 + } else {
14127 + y = c->pos_y - mc->y;
14128 + }
14129 +
14130 + if (mc->w < (x+w))
14131 + w -= (x+w) - (mc->w);
14132 +
14133 + if (mc->h < (y+h))
14134 + h -= (y+h) - (mc->h);
14135 +
14136 + outw = w;
14137 + outh = h;
14138 + }
14139 + }
14140 +
14141 + r = dispc_setup_plane(plane,
14142 + paddr,
14143 + c->screen_width,
14144 + x, y,
14145 + w, h,
14146 + outw, outh,
14147 + c->color_mode,
14148 + c->ilace,
14149 + c->rotation_type,
14150 + c->rotation,
14151 + c->mirror,
14152 + c->global_alpha);
14153 +
14154 + if (r) {
14155 + /* this shouldn't happen */
14156 + DSSERR("dispc_setup_plane failed for ovl %d\n", plane);
14157 + dispc_enable_plane(plane, 0);
14158 + return r;
14159 + }
14160 +
14161 + dispc_enable_replication(plane, c->replication);
14162 +
14163 + dispc_set_burst_size(plane, c->burst_size);
14164 + dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high);
14165 +
14166 + dispc_enable_plane(plane, 1);
14167 +
14168 + return 0;
14169 +}
14170 +
14171 +static void configure_manager(enum omap_channel channel)
14172 +{
14173 + struct manager_cache_data *c;
14174 +
14175 + DSSDBGF("%d", channel);
14176 +
14177 + c = &dss_cache.manager_cache[channel];
14178 +
14179 + dispc_set_trans_key(channel, c->trans_key_type, c->trans_key);
14180 + dispc_enable_trans_key(channel, c->trans_enabled);
14181 + dispc_enable_alpha_blending(channel, c->alpha_enabled);
14182 +}
14183 +
14184 +/* configure_dispc() tries to write values from cache to shadow registers.
14185 + * It writes only to those managers/overlays that are not busy.
14186 + * returns 0 if everything could be written to shadow registers.
14187 + * returns 1 if not everything could be written to shadow registers. */
14188 +static int configure_dispc(void)
14189 +{
14190 + struct overlay_cache_data *oc;
14191 + struct manager_cache_data *mc;
14192 + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
14193 + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
14194 + int i;
14195 + int r;
14196 + bool mgr_busy[2];
14197 + bool mgr_go[2];
14198 + bool busy;
14199 +
14200 + r = 0;
14201 + busy = false;
14202 +
14203 + mgr_busy[0] = dispc_go_busy(0);
14204 + mgr_busy[1] = dispc_go_busy(1);
14205 + mgr_go[0] = false;
14206 + mgr_go[1] = false;
14207 +
14208 + /* Commit overlay settings */
14209 + for (i = 0; i < num_ovls; ++i) {
14210 + oc = &dss_cache.overlay_cache[i];
14211 + mc = &dss_cache.manager_cache[oc->channel];
14212 +
14213 + if (!oc->dirty)
14214 + continue;
14215 +
14216 + if (oc->manual_update && !mc->do_manual_update)
14217 + continue;
14218 +
14219 + if (mgr_busy[oc->channel]) {
14220 + busy = true;
14221 + continue;
14222 + }
14223 +
14224 + r = configure_overlay(i);
14225 + if (r)
14226 + DSSERR("configure_overlay %d failed\n", i);
14227 +
14228 + oc->dirty = false;
14229 + oc->shadow_dirty = true;
14230 + mgr_go[oc->channel] = true;
14231 + }
14232 +
14233 + /* Commit manager settings */
14234 + for (i = 0; i < num_mgrs; ++i) {
14235 + mc = &dss_cache.manager_cache[i];
14236 +
14237 + if (!mc->dirty)
14238 + continue;
14239 +
14240 + if (mc->manual_update && !mc->do_manual_update)
14241 + continue;
14242 +
14243 + if (mgr_busy[i]) {
14244 + busy = true;
14245 + continue;
14246 + }
14247 +
14248 + configure_manager(i);
14249 + mc->dirty = false;
14250 + mc->shadow_dirty = true;
14251 + mgr_go[i] = true;
14252 + }
14253 +
14254 + /* set GO */
14255 + for (i = 0; i < num_mgrs; ++i) {
14256 + mc = &dss_cache.manager_cache[i];
14257 +
14258 + if (!mgr_go[i])
14259 + continue;
14260 +
14261 + /* We don't need GO with manual update display. LCD iface will
14262 + * always be turned off after frame, and new settings will be
14263 + * taken in to use at next update */
14264 + if (!mc->manual_upd_display)
14265 + dispc_go(i);
14266 + }
14267 +
14268 + if (busy)
14269 + r = 1;
14270 + else
14271 + r = 0;
14272 +
14273 + return r;
14274 +}
14275 +
14276 +/* Configure dispc for partial update. Return possibly modified update
14277 + * area */
14278 +void dss_setup_partial_planes(struct omap_dss_device *dssdev,
14279 + u16 *xi, u16 *yi, u16 *wi, u16 *hi)
14280 +{
14281 + struct overlay_cache_data *oc;
14282 + struct manager_cache_data *mc;
14283 + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
14284 + struct omap_overlay_manager *mgr;
14285 + int i;
14286 + u16 x, y, w, h;
14287 + unsigned long flags;
14288 +
14289 + x = *xi;
14290 + y = *yi;
14291 + w = *wi;
14292 + h = *hi;
14293 +
14294 + DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
14295 + *xi, *yi, *wi, *hi);
14296 +
14297 + mgr = dssdev->manager;
14298 +
14299 + if (!mgr) {
14300 + DSSDBG("no manager\n");
14301 + return;
14302 + }
14303 +
14304 + spin_lock_irqsave(&dss_cache.lock, flags);
14305 +
14306 + /* We need to show the whole overlay if it is scaled. So look for
14307 + * those, and make the update area larger if found.
14308 + * Also mark the overlay cache dirty */
14309 + for (i = 0; i < num_ovls; ++i) {
14310 + unsigned x1, y1, x2, y2;
14311 + unsigned outw, outh;
14312 +
14313 + oc = &dss_cache.overlay_cache[i];
14314 +
14315 + if (oc->channel != mgr->id)
14316 + continue;
14317 +
14318 + oc->dirty = true;
14319 +
14320 + if (!oc->enabled)
14321 + continue;
14322 +
14323 + if (!dispc_is_overlay_scaled(oc))
14324 + continue;
14325 +
14326 + outw = oc->out_width == 0 ? oc->width : oc->out_width;
14327 + outh = oc->out_height == 0 ? oc->height : oc->out_height;
14328 +
14329 + /* is the overlay outside the update region? */
14330 + if (!rectangle_intersects(x, y, w, h,
14331 + oc->pos_x, oc->pos_y,
14332 + outw, outh))
14333 + continue;
14334 +
14335 + /* if the overlay totally inside the update region? */
14336 + if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
14337 + x, y, w, h))
14338 + continue;
14339 +
14340 + if (x > oc->pos_x)
14341 + x1 = oc->pos_x;
14342 + else
14343 + x1 = x;
14344 +
14345 + if (y > oc->pos_y)
14346 + y1 = oc->pos_y;
14347 + else
14348 + y1 = y;
14349 +
14350 + if ((x + w) < (oc->pos_x + outw))
14351 + x2 = oc->pos_x + outw;
14352 + else
14353 + x2 = x + w;
14354 +
14355 + if ((y + h) < (oc->pos_y + outh))
14356 + y2 = oc->pos_y + outh;
14357 + else
14358 + y2 = y + h;
14359 +
14360 + x = x1;
14361 + y = y1;
14362 + w = x2 - x1;
14363 + h = y2 - y1;
14364 +
14365 + DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
14366 + i, x, y, w, h);
14367 + }
14368 +
14369 + mc = &dss_cache.manager_cache[mgr->id];
14370 + mc->do_manual_update = true;
14371 + mc->x = x;
14372 + mc->y = y;
14373 + mc->w = w;
14374 + mc->h = h;
14375 +
14376 + configure_dispc();
14377 +
14378 + mc->do_manual_update = false;
14379 +
14380 + spin_unlock_irqrestore(&dss_cache.lock, flags);
14381 +
14382 + *xi = x;
14383 + *yi = y;
14384 + *wi = w;
14385 + *hi = h;
14386 +}
14387 +
14388 +void dss_start_update(struct omap_dss_device *dssdev)
14389 +{
14390 + struct manager_cache_data *mc;
14391 + struct overlay_cache_data *oc;
14392 + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
14393 + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
14394 + struct omap_overlay_manager *mgr;
14395 + int i;
14396 +
14397 + mgr = dssdev->manager;
14398 +
14399 + for (i = 0; i < num_ovls; ++i) {
14400 + oc = &dss_cache.overlay_cache[i];
14401 + if (oc->channel != mgr->id)
14402 + continue;
14403 +
14404 + oc->shadow_dirty = false;
14405 + }
14406 +
14407 + for (i = 0; i < num_mgrs; ++i) {
14408 + mc = &dss_cache.manager_cache[i];
14409 + if (mgr->id != i)
14410 + continue;
14411 +
14412 + mc->shadow_dirty = false;
14413 + }
14414 +
14415 + dispc_enable_lcd_out(1);
14416 +}
14417 +
14418 +static void dss_apply_irq_handler(void *data, u32 mask)
14419 +{
14420 + struct manager_cache_data *mc;
14421 + struct overlay_cache_data *oc;
14422 + const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
14423 + const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
14424 + int i, r;
14425 + bool mgr_busy[2];
14426 +
14427 + mgr_busy[0] = dispc_go_busy(0);
14428 + mgr_busy[1] = dispc_go_busy(1);
14429 +
14430 + spin_lock(&dss_cache.lock);
14431 +
14432 + for (i = 0; i < num_ovls; ++i) {
14433 + oc = &dss_cache.overlay_cache[i];
14434 + if (!mgr_busy[oc->channel])
14435 + oc->shadow_dirty = false;
14436 + }
14437 +
14438 + for (i = 0; i < num_mgrs; ++i) {
14439 + mc = &dss_cache.manager_cache[i];
14440 + if (!mgr_busy[i])
14441 + mc->shadow_dirty = false;
14442 + }
14443 +
14444 + r = configure_dispc();
14445 + if (r == 1)
14446 + goto end;
14447 +
14448 + /* re-read busy flags */
14449 + mgr_busy[0] = dispc_go_busy(0);
14450 + mgr_busy[1] = dispc_go_busy(1);
14451 +
14452 + /* keep running as long as there are busy managers, so that
14453 + * we can collect overlay-applied information */
14454 + for (i = 0; i < num_mgrs; ++i) {
14455 + if (mgr_busy[i])
14456 + goto end;
14457 + }
14458 +
14459 + omap_dispc_unregister_isr(dss_apply_irq_handler, NULL,
14460 + DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
14461 + DISPC_IRQ_EVSYNC_EVEN);
14462 + dss_cache.irq_enabled = false;
14463 +
14464 +end:
14465 + spin_unlock(&dss_cache.lock);
14466 +}
14467 +
14468 +static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
14469 +{
14470 + struct overlay_cache_data *oc;
14471 + struct manager_cache_data *mc;
14472 + int i;
14473 + struct omap_overlay *ovl;
14474 + int num_planes_enabled = 0;
14475 + bool use_fifomerge;
14476 + unsigned long flags;
14477 + int r;
14478 +
14479 + DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
14480 +
14481 + spin_lock_irqsave(&dss_cache.lock, flags);
14482 +
14483 + /* Configure overlays */
14484 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
14485 + struct omap_dss_device *dssdev;
14486 +
14487 + ovl = omap_dss_get_overlay(i);
14488 +
14489 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
14490 + continue;
14491 +
14492 + oc = &dss_cache.overlay_cache[ovl->id];
14493 +
14494 + if (!overlay_enabled(ovl)) {
14495 + if (oc->enabled) {
14496 + oc->enabled = false;
14497 + oc->dirty = true;
14498 + }
14499 + continue;
14500 + }
14501 +
14502 + if (!ovl->info_dirty) {
14503 + if (oc->enabled)
14504 + ++num_planes_enabled;
14505 + continue;
14506 + }
14507 +
14508 + dssdev = ovl->manager->device;
14509 +
14510 + if (dss_check_overlay(ovl, dssdev)) {
14511 + if (oc->enabled) {
14512 + oc->enabled = false;
14513 + oc->dirty = true;
14514 + }
14515 + continue;
14516 + }
14517 +
14518 + ovl->info_dirty = false;
14519 + oc->dirty = true;
14520 +
14521 + oc->paddr = ovl->info.paddr;
14522 + oc->vaddr = ovl->info.vaddr;
14523 + oc->screen_width = ovl->info.screen_width;
14524 + oc->width = ovl->info.width;
14525 + oc->height = ovl->info.height;
14526 + oc->color_mode = ovl->info.color_mode;
14527 + oc->rotation = ovl->info.rotation;
14528 + oc->rotation_type = ovl->info.rotation_type;
14529 + oc->mirror = ovl->info.mirror;
14530 + oc->pos_x = ovl->info.pos_x;
14531 + oc->pos_y = ovl->info.pos_y;
14532 + oc->out_width = ovl->info.out_width;
14533 + oc->out_height = ovl->info.out_height;
14534 + oc->global_alpha = ovl->info.global_alpha;
14535 +
14536 + oc->replication =
14537 + dss_use_replication(dssdev, ovl->info.color_mode);
14538 +
14539 + oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC;
14540 +
14541 + oc->channel = ovl->manager->id;
14542 +
14543 + oc->enabled = true;
14544 +
14545 + oc->manual_update =
14546 + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
14547 + dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
14548 +
14549 + ++num_planes_enabled;
14550 + }
14551 +
14552 + /* Configure managers */
14553 + list_for_each_entry(mgr, &manager_list, list) {
14554 + struct omap_dss_device *dssdev;
14555 +
14556 + if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
14557 + continue;
14558 +
14559 + mc = &dss_cache.manager_cache[mgr->id];
14560 +
14561 + if (mgr->device_changed) {
14562 + mgr->device_changed = false;
14563 + mgr->info_dirty = true;
14564 + }
14565 +
14566 + if (!mgr->info_dirty)
14567 + continue;
14568 +
14569 + if (!mgr->device)
14570 + continue;
14571 +
14572 + dssdev = mgr->device;
14573 +
14574 + mgr->info_dirty = false;
14575 + mc->dirty = true;
14576 +
14577 + mc->default_color = mgr->info.default_color;
14578 + mc->trans_key_type = mgr->info.trans_key_type;
14579 + mc->trans_key = mgr->info.trans_key;
14580 + mc->trans_enabled = mgr->info.trans_enabled;
14581 + mc->alpha_enabled = mgr->info.alpha_enabled;
14582 +
14583 + mc->manual_upd_display =
14584 + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
14585 +
14586 + mc->manual_update =
14587 + dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
14588 + dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
14589 + }
14590 +
14591 + /* XXX TODO: Try to get fifomerge working. The problem is that it
14592 + * affects both managers, not individually but at the same time. This
14593 + * means the change has to be well synchronized. I guess the proper way
14594 + * is to have a two step process for fifo merge:
14595 + * fifomerge enable:
14596 + * 1. disable other planes, leaving one plane enabled
14597 + * 2. wait until the planes are disabled on HW
14598 + * 3. config merged fifo thresholds, enable fifomerge
14599 + * fifomerge disable:
14600 + * 1. config unmerged fifo thresholds, disable fifomerge
14601 + * 2. wait until fifo changes are in HW
14602 + * 3. enable planes
14603 + */
14604 + use_fifomerge = false;
14605 +
14606 + /* Configure overlay fifos */
14607 + for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
14608 + struct omap_dss_device *dssdev;
14609 + u32 size;
14610 +
14611 + ovl = omap_dss_get_overlay(i);
14612 +
14613 + if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
14614 + continue;
14615 +
14616 + oc = &dss_cache.overlay_cache[ovl->id];
14617 +
14618 + if (!oc->enabled)
14619 + continue;
14620 +
14621 + dssdev = ovl->manager->device;
14622 +
14623 + size = dispc_get_plane_fifo_size(ovl->id);
14624 + if (use_fifomerge)
14625 + size *= 3;
14626 +
14627 + switch (dssdev->type) {
14628 + case OMAP_DISPLAY_TYPE_DPI:
14629 + case OMAP_DISPLAY_TYPE_DBI:
14630 + case OMAP_DISPLAY_TYPE_SDI:
14631 + case OMAP_DISPLAY_TYPE_VENC:
14632 + default_get_overlay_fifo_thresholds(ovl->id, size,
14633 + &oc->burst_size, &oc->fifo_low,
14634 + &oc->fifo_high);
14635 + break;
14636 +#ifdef CONFIG_OMAP2_DSS_DSI
14637 + case OMAP_DISPLAY_TYPE_DSI:
14638 + dsi_get_overlay_fifo_thresholds(ovl->id, size,
14639 + &oc->burst_size, &oc->fifo_low,
14640 + &oc->fifo_high);
14641 + break;
14642 +#endif
14643 + default:
14644 + BUG();
14645 + }
14646 + }
14647 +
14648 + r = 0;
14649 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
14650 + if (!dss_cache.irq_enabled) {
14651 + r = omap_dispc_register_isr(dss_apply_irq_handler, NULL,
14652 + DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
14653 + DISPC_IRQ_EVSYNC_EVEN);
14654 + dss_cache.irq_enabled = true;
14655 + }
14656 + configure_dispc();
14657 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
14658 +
14659 + spin_unlock_irqrestore(&dss_cache.lock, flags);
14660 +
14661 + return r;
14662 +}
14663 +
14664 +static int dss_check_manager(struct omap_overlay_manager *mgr)
14665 +{
14666 + /* OMAP supports only graphics source transparency color key and alpha
14667 + * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */
14668 +
14669 + if (mgr->info.alpha_enabled && mgr->info.trans_enabled &&
14670 + mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST)
14671 + return -EINVAL;
14672 +
14673 + return 0;
14674 +}
14675 +
14676 +static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr,
14677 + struct omap_overlay_manager_info *info)
14678 +{
14679 + int r;
14680 + struct omap_overlay_manager_info old_info;
14681 +
14682 + old_info = mgr->info;
14683 + mgr->info = *info;
14684 +
14685 + r = dss_check_manager(mgr);
14686 + if (r) {
14687 + mgr->info = old_info;
14688 + return r;
14689 + }
14690 +
14691 + mgr->info_dirty = true;
14692 +
14693 + return 0;
14694 +}
14695 +
14696 +static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
14697 + struct omap_overlay_manager_info *info)
14698 +{
14699 + *info = mgr->info;
14700 +}
14701 +
14702 +static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
14703 +{
14704 + ++num_managers;
14705 + list_add_tail(&manager->list, &manager_list);
14706 +}
14707 +
14708 +int dss_init_overlay_managers(struct platform_device *pdev)
14709 +{
14710 + int i, r;
14711 +
14712 + spin_lock_init(&dss_cache.lock);
14713 +
14714 + INIT_LIST_HEAD(&manager_list);
14715 +
14716 + num_managers = 0;
14717 +
14718 + for (i = 0; i < 2; ++i) {
14719 + struct omap_overlay_manager *mgr;
14720 + mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
14721 +
14722 + BUG_ON(mgr == NULL);
14723 +
14724 + switch (i) {
14725 + case 0:
14726 + mgr->name = "lcd";
14727 + mgr->id = OMAP_DSS_CHANNEL_LCD;
14728 + mgr->supported_displays =
14729 + OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
14730 + OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
14731 + break;
14732 + case 1:
14733 + mgr->name = "tv";
14734 + mgr->id = OMAP_DSS_CHANNEL_DIGIT;
14735 + mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
14736 + break;
14737 + }
14738 +
14739 + mgr->set_device = &omap_dss_set_device;
14740 + mgr->unset_device = &omap_dss_unset_device;
14741 + mgr->apply = &omap_dss_mgr_apply;
14742 + mgr->set_manager_info = &omap_dss_mgr_set_info;
14743 + mgr->get_manager_info = &omap_dss_mgr_get_info;
14744 + mgr->wait_for_go = &dss_mgr_wait_for_go;
14745 +
14746 + mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
14747 +
14748 + dss_overlay_setup_dispc_manager(mgr);
14749 +
14750 + omap_dss_add_overlay_manager(mgr);
14751 +
14752 + r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
14753 + &pdev->dev.kobj, "manager%d", i);
14754 +
14755 + if (r) {
14756 + DSSERR("failed to create sysfs file\n");
14757 + continue;
14758 + }
14759 + }
14760 +
14761 +#ifdef L4_EXAMPLE
14762 + {
14763 + int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr)
14764 + {
14765 + DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
14766 +
14767 + return 0;
14768 + }
14769 +
14770 + struct omap_overlay_manager *mgr;
14771 + mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
14772 +
14773 + BUG_ON(mgr == NULL);
14774 +
14775 + mgr->name = "l4";
14776 + mgr->supported_displays =
14777 + OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI;
14778 +
14779 + mgr->set_device = &omap_dss_set_device;
14780 + mgr->unset_device = &omap_dss_unset_device;
14781 + mgr->apply = &omap_dss_mgr_apply_l4;
14782 + mgr->set_manager_info = &omap_dss_mgr_set_info;
14783 + mgr->get_manager_info = &omap_dss_mgr_get_info;
14784 +
14785 + dss_overlay_setup_l4_manager(mgr);
14786 +
14787 + omap_dss_add_overlay_manager(mgr);
14788 +
14789 + r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
14790 + &pdev->dev.kobj, "managerl4");
14791 +
14792 + if (r)
14793 + DSSERR("failed to create sysfs file\n");
14794 + }
14795 +#endif
14796 +
14797 + return 0;
14798 +}
14799 +
14800 +void dss_uninit_overlay_managers(struct platform_device *pdev)
14801 +{
14802 + struct omap_overlay_manager *mgr;
14803 +
14804 + while (!list_empty(&manager_list)) {
14805 + mgr = list_first_entry(&manager_list,
14806 + struct omap_overlay_manager, list);
14807 + list_del(&mgr->list);
14808 + kobject_del(&mgr->kobj);
14809 + kobject_put(&mgr->kobj);
14810 + kfree(mgr);
14811 + }
14812 +
14813 + num_managers = 0;
14814 +}
14815 +
14816 +int omap_dss_get_num_overlay_managers(void)
14817 +{
14818 + return num_managers;
14819 +}
14820 +EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
14821 +
14822 +struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
14823 +{
14824 + int i = 0;
14825 + struct omap_overlay_manager *mgr;
14826 +
14827 + list_for_each_entry(mgr, &manager_list, list) {
14828 + if (i++ == num)
14829 + return mgr;
14830 + }
14831 +
14832 + return NULL;
14833 +}
14834 +EXPORT_SYMBOL(omap_dss_get_overlay_manager);
14835 +
14836 --- /dev/null
14837 +++ b/drivers/video/omap2/dss/overlay.c
14838 @@ -0,0 +1,673 @@
14839 +/*
14840 + * linux/drivers/video/omap2/dss/overlay.c
14841 + *
14842 + * Copyright (C) 2009 Nokia Corporation
14843 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
14844 + *
14845 + * Some code and ideas taken from drivers/video/omap/ driver
14846 + * by Imre Deak.
14847 + *
14848 + * This program is free software; you can redistribute it and/or modify it
14849 + * under the terms of the GNU General Public License version 2 as published by
14850 + * the Free Software Foundation.
14851 + *
14852 + * This program is distributed in the hope that it will be useful, but WITHOUT
14853 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14854 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14855 + * more details.
14856 + *
14857 + * You should have received a copy of the GNU General Public License along with
14858 + * this program. If not, see <http://www.gnu.org/licenses/>.
14859 + */
14860 +
14861 +#define DSS_SUBSYS_NAME "OVERLAY"
14862 +
14863 +#include <linux/kernel.h>
14864 +#include <linux/module.h>
14865 +#include <linux/err.h>
14866 +#include <linux/sysfs.h>
14867 +#include <linux/kobject.h>
14868 +#include <linux/platform_device.h>
14869 +#include <linux/delay.h>
14870 +
14871 +#include <mach/display.h>
14872 +
14873 +#include "dss.h"
14874 +
14875 +static int num_overlays;
14876 +static struct list_head overlay_list;
14877 +
14878 +static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
14879 +{
14880 + return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name);
14881 +}
14882 +
14883 +static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf)
14884 +{
14885 + return snprintf(buf, PAGE_SIZE, "%s\n",
14886 + ovl->manager ? ovl->manager->name : "<none>");
14887 +}
14888 +
14889 +static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf,
14890 + size_t size)
14891 +{
14892 + int i, r;
14893 + struct omap_overlay_manager *mgr = NULL;
14894 + struct omap_overlay_manager *old_mgr;
14895 + int len = size;
14896 +
14897 + if (buf[size-1] == '\n')
14898 + --len;
14899 +
14900 + if (len > 0) {
14901 + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
14902 + mgr = omap_dss_get_overlay_manager(i);
14903 +
14904 + if (strncmp(buf, mgr->name, len) == 0)
14905 + break;
14906 +
14907 + mgr = NULL;
14908 + }
14909 + }
14910 +
14911 + if (len > 0 && mgr == NULL)
14912 + return -EINVAL;
14913 +
14914 + if (mgr)
14915 + DSSDBG("manager %s found\n", mgr->name);
14916 +
14917 + if (mgr == ovl->manager)
14918 + return size;
14919 +
14920 + old_mgr = ovl->manager;
14921 +
14922 + /* detach old manager */
14923 + if (old_mgr) {
14924 + r = ovl->unset_manager(ovl);
14925 + if (r) {
14926 + DSSERR("detach failed\n");
14927 + return r;
14928 + }
14929 +
14930 + r = old_mgr->apply(old_mgr);
14931 + if (r)
14932 + return r;
14933 + }
14934 +
14935 + if (mgr) {
14936 + r = ovl->set_manager(ovl, mgr);
14937 + if (r) {
14938 + DSSERR("Failed to attach overlay\n");
14939 + return r;
14940 + }
14941 +
14942 + r = mgr->apply(mgr);
14943 + if (r)
14944 + return r;
14945 + }
14946 +
14947 + return size;
14948 +}
14949 +
14950 +static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
14951 +{
14952 + return snprintf(buf, PAGE_SIZE, "%d,%d\n",
14953 + ovl->info.width, ovl->info.height);
14954 +}
14955 +
14956 +static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
14957 +{
14958 + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
14959 +}
14960 +
14961 +static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
14962 +{
14963 + return snprintf(buf, PAGE_SIZE, "%d,%d\n",
14964 + ovl->info.pos_x, ovl->info.pos_y);
14965 +}
14966 +
14967 +static ssize_t overlay_position_store(struct omap_overlay *ovl,
14968 + const char *buf, size_t size)
14969 +{
14970 + int r;
14971 + char *last;
14972 + struct omap_overlay_info info;
14973 +
14974 + ovl->get_overlay_info(ovl, &info);
14975 +
14976 + info.pos_x = simple_strtoul(buf, &last, 10);
14977 + ++last;
14978 + if (last - buf >= size)
14979 + return -EINVAL;
14980 +
14981 + info.pos_y = simple_strtoul(last, &last, 10);
14982 +
14983 + r = ovl->set_overlay_info(ovl, &info);
14984 + if (r)
14985 + return r;
14986 +
14987 + if (ovl->manager) {
14988 + r = ovl->manager->apply(ovl->manager);
14989 + if (r)
14990 + return r;
14991 + }
14992 +
14993 + return size;
14994 +}
14995 +
14996 +static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
14997 +{
14998 + return snprintf(buf, PAGE_SIZE, "%d,%d\n",
14999 + ovl->info.out_width, ovl->info.out_height);
15000 +}
15001 +
15002 +static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
15003 + const char *buf, size_t size)
15004 +{
15005 + int r;
15006 + char *last;
15007 + struct omap_overlay_info info;
15008 +
15009 + ovl->get_overlay_info(ovl, &info);
15010 +
15011 + info.out_width = simple_strtoul(buf, &last, 10);
15012 + ++last;
15013 + if (last - buf >= size)
15014 + return -EINVAL;
15015 +
15016 + info.out_height = simple_strtoul(last, &last, 10);
15017 +
15018 + r = ovl->set_overlay_info(ovl, &info);
15019 + if (r)
15020 + return r;
15021 +
15022 + if (ovl->manager) {
15023 + r = ovl->manager->apply(ovl->manager);
15024 + if (r)
15025 + return r;
15026 + }
15027 +
15028 + return size;
15029 +}
15030 +
15031 +static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
15032 +{
15033 + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
15034 +}
15035 +
15036 +static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
15037 + size_t size)
15038 +{
15039 + int r;
15040 + struct omap_overlay_info info;
15041 +
15042 + ovl->get_overlay_info(ovl, &info);
15043 +
15044 + info.enabled = simple_strtoul(buf, NULL, 10);
15045 +
15046 + r = ovl->set_overlay_info(ovl, &info);
15047 + if (r)
15048 + return r;
15049 +
15050 + if (ovl->manager) {
15051 + r = ovl->manager->apply(ovl->manager);
15052 + if (r)
15053 + return r;
15054 + }
15055 +
15056 + return size;
15057 +}
15058 +
15059 +static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
15060 +{
15061 + return snprintf(buf, PAGE_SIZE, "%d\n",
15062 + ovl->info.global_alpha);
15063 +}
15064 +
15065 +static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
15066 + const char *buf, size_t size)
15067 +{
15068 + int r;
15069 + struct omap_overlay_info info;
15070 +
15071 + ovl->get_overlay_info(ovl, &info);
15072 +
15073 + /* Video1 plane does not support global alpha
15074 + * to always make it 255 completely opaque
15075 + */
15076 + if (ovl->id == OMAP_DSS_VIDEO1)
15077 + info.global_alpha = 255;
15078 + else
15079 + info.global_alpha = simple_strtoul(buf, NULL, 10);
15080 +
15081 + r = ovl->set_overlay_info(ovl, &info);
15082 + if (r)
15083 + return r;
15084 +
15085 + if (ovl->manager) {
15086 + r = ovl->manager->apply(ovl->manager);
15087 + if (r)
15088 + return r;
15089 + }
15090 +
15091 + return size;
15092 +}
15093 +
15094 +struct overlay_attribute {
15095 + struct attribute attr;
15096 + ssize_t (*show)(struct omap_overlay *, char *);
15097 + ssize_t (*store)(struct omap_overlay *, const char *, size_t);
15098 +};
15099 +
15100 +#define OVERLAY_ATTR(_name, _mode, _show, _store) \
15101 + struct overlay_attribute overlay_attr_##_name = \
15102 + __ATTR(_name, _mode, _show, _store)
15103 +
15104 +static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL);
15105 +static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR,
15106 + overlay_manager_show, overlay_manager_store);
15107 +static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL);
15108 +static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL);
15109 +static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR,
15110 + overlay_position_show, overlay_position_store);
15111 +static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR,
15112 + overlay_output_size_show, overlay_output_size_store);
15113 +static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
15114 + overlay_enabled_show, overlay_enabled_store);
15115 +static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
15116 + overlay_global_alpha_show, overlay_global_alpha_store);
15117 +
15118 +static struct attribute *overlay_sysfs_attrs[] = {
15119 + &overlay_attr_name.attr,
15120 + &overlay_attr_manager.attr,
15121 + &overlay_attr_input_size.attr,
15122 + &overlay_attr_screen_width.attr,
15123 + &overlay_attr_position.attr,
15124 + &overlay_attr_output_size.attr,
15125 + &overlay_attr_enabled.attr,
15126 + &overlay_attr_global_alpha.attr,
15127 + NULL
15128 +};
15129 +
15130 +static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr,
15131 + char *buf)
15132 +{
15133 + struct omap_overlay *overlay;
15134 + struct overlay_attribute *overlay_attr;
15135 +
15136 + overlay = container_of(kobj, struct omap_overlay, kobj);
15137 + overlay_attr = container_of(attr, struct overlay_attribute, attr);
15138 +
15139 + if (!overlay_attr->show)
15140 + return -ENOENT;
15141 +
15142 + return overlay_attr->show(overlay, buf);
15143 +}
15144 +
15145 +static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr,
15146 + const char *buf, size_t size)
15147 +{
15148 + struct omap_overlay *overlay;
15149 + struct overlay_attribute *overlay_attr;
15150 +
15151 + overlay = container_of(kobj, struct omap_overlay, kobj);
15152 + overlay_attr = container_of(attr, struct overlay_attribute, attr);
15153 +
15154 + if (!overlay_attr->store)
15155 + return -ENOENT;
15156 +
15157 + return overlay_attr->store(overlay, buf, size);
15158 +}
15159 +
15160 +static struct sysfs_ops overlay_sysfs_ops = {
15161 + .show = overlay_attr_show,
15162 + .store = overlay_attr_store,
15163 +};
15164 +
15165 +static struct kobj_type overlay_ktype = {
15166 + .sysfs_ops = &overlay_sysfs_ops,
15167 + .default_attrs = overlay_sysfs_attrs,
15168 +};
15169 +
15170 +/* Check if overlay parameters are compatible with display */
15171 +int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
15172 +{
15173 + struct omap_overlay_info *info;
15174 + u16 outw, outh;
15175 + u16 dw, dh;
15176 +
15177 + if (!dssdev)
15178 + return 0;
15179 +
15180 + if (!ovl->info.enabled)
15181 + return 0;
15182 +
15183 + info = &ovl->info;
15184 +
15185 + if (info->paddr == 0) {
15186 + DSSDBG("check_overlay failed: paddr 0\n");
15187 + return -EINVAL;
15188 + }
15189 +
15190 + dssdev->get_resolution(dssdev, &dw, &dh);
15191 +
15192 + DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
15193 + ovl->id,
15194 + info->pos_x, info->pos_y,
15195 + info->width, info->height,
15196 + info->out_width, info->out_height,
15197 + dw, dh);
15198 +
15199 + if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
15200 + outw = info->width;
15201 + outh = info->height;
15202 + } else {
15203 + if (info->out_width == 0)
15204 + outw = info->width;
15205 + else
15206 + outw = info->out_width;
15207 +
15208 + if (info->out_height == 0)
15209 + outh = info->height;
15210 + else
15211 + outh = info->out_height;
15212 + }
15213 +
15214 + if (dw < info->pos_x + outw) {
15215 + DSSDBG("check_overlay failed 1: %d < %d + %d\n",
15216 + dw, info->pos_x, outw);
15217 + return -EINVAL;
15218 + }
15219 +
15220 + if (dh < info->pos_y + outh) {
15221 + DSSDBG("check_overlay failed 2: %d < %d + %d\n",
15222 + dh, info->pos_y, outh);
15223 + return -EINVAL;
15224 + }
15225 +
15226 + if ((ovl->supported_modes & info->color_mode) == 0) {
15227 + DSSERR("overlay doesn't support mode %d\n", info->color_mode);
15228 + return -EINVAL;
15229 + }
15230 +
15231 + return 0;
15232 +}
15233 +
15234 +static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
15235 + struct omap_overlay_info *info)
15236 +{
15237 + int r;
15238 + struct omap_overlay_info old_info;
15239 +
15240 + old_info = ovl->info;
15241 + ovl->info = *info;
15242 +
15243 + if (ovl->manager) {
15244 + r = dss_check_overlay(ovl, ovl->manager->device);
15245 + if (r) {
15246 + ovl->info = old_info;
15247 + return r;
15248 + }
15249 + }
15250 +
15251 + ovl->info_dirty = true;
15252 +
15253 + return 0;
15254 +}
15255 +
15256 +static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
15257 + struct omap_overlay_info *info)
15258 +{
15259 + *info = ovl->info;
15260 +}
15261 +
15262 +static int dss_ovl_wait_for_go(struct omap_overlay *ovl)
15263 +{
15264 + return dss_mgr_wait_for_go_ovl(ovl);
15265 +}
15266 +
15267 +static int omap_dss_set_manager(struct omap_overlay *ovl,
15268 + struct omap_overlay_manager *mgr)
15269 +{
15270 + if (!mgr)
15271 + return -EINVAL;
15272 +
15273 + if (ovl->manager) {
15274 + DSSERR("overlay '%s' already has a manager '%s'\n",
15275 + ovl->name, ovl->manager->name);
15276 + return -EINVAL;
15277 + }
15278 +
15279 + if (ovl->info.enabled) {
15280 + DSSERR("overlay has to be disabled to change the manager\n");
15281 + return -EINVAL;
15282 + }
15283 +
15284 + ovl->manager = mgr;
15285 +
15286 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
15287 + /* XXX: on manual update display, in auto update mode, a bug happens
15288 + * here. When an overlay is first enabled on LCD, then it's disabled,
15289 + * and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT
15290 + * errors. Waiting before changing the channel_out fixes it. I'm
15291 + * guessing that the overlay is still somehow being used for the LCD,
15292 + * but I don't understand how or why. */
15293 + msleep(40);
15294 + dispc_set_channel_out(ovl->id, mgr->id);
15295 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
15296 +
15297 + return 0;
15298 +}
15299 +
15300 +static int omap_dss_unset_manager(struct omap_overlay *ovl)
15301 +{
15302 + int r;
15303 +
15304 + if (!ovl->manager) {
15305 + DSSERR("failed to detach overlay: manager not set\n");
15306 + return -EINVAL;
15307 + }
15308 +
15309 + if (ovl->info.enabled) {
15310 + DSSERR("overlay has to be disabled to unset the manager\n");
15311 + return -EINVAL;
15312 + }
15313 +
15314 + r = ovl->wait_for_go(ovl);
15315 + if (r)
15316 + return r;
15317 +
15318 + ovl->manager = NULL;
15319 +
15320 + return 0;
15321 +}
15322 +
15323 +int omap_dss_get_num_overlays(void)
15324 +{
15325 + return num_overlays;
15326 +}
15327 +EXPORT_SYMBOL(omap_dss_get_num_overlays);
15328 +
15329 +struct omap_overlay *omap_dss_get_overlay(int num)
15330 +{
15331 + int i = 0;
15332 + struct omap_overlay *ovl;
15333 +
15334 + list_for_each_entry(ovl, &overlay_list, list) {
15335 + if (i++ == num)
15336 + return ovl;
15337 + }
15338 +
15339 + return NULL;
15340 +}
15341 +EXPORT_SYMBOL(omap_dss_get_overlay);
15342 +
15343 +static void omap_dss_add_overlay(struct omap_overlay *overlay)
15344 +{
15345 + ++num_overlays;
15346 + list_add_tail(&overlay->list, &overlay_list);
15347 +}
15348 +
15349 +static struct omap_overlay *dispc_overlays[3];
15350 +
15351 +void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
15352 +{
15353 + mgr->num_overlays = 3;
15354 + mgr->overlays = dispc_overlays;
15355 +}
15356 +
15357 +#ifdef L4_EXAMPLE
15358 +static struct omap_overlay *l4_overlays[1];
15359 +void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr)
15360 +{
15361 + mgr->num_overlays = 1;
15362 + mgr->overlays = l4_overlays;
15363 +}
15364 +#endif
15365 +
15366 +void dss_init_overlays(struct platform_device *pdev)
15367 +{
15368 + int i, r;
15369 +
15370 + INIT_LIST_HEAD(&overlay_list);
15371 +
15372 + num_overlays = 0;
15373 +
15374 + for (i = 0; i < 3; ++i) {
15375 + struct omap_overlay *ovl;
15376 + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
15377 +
15378 + BUG_ON(ovl == NULL);
15379 +
15380 + switch (i) {
15381 + case 0:
15382 + ovl->name = "gfx";
15383 + ovl->id = OMAP_DSS_GFX;
15384 + ovl->supported_modes = OMAP_DSS_COLOR_GFX_OMAP3;
15385 + ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
15386 + ovl->info.global_alpha = 255;
15387 + break;
15388 + case 1:
15389 + ovl->name = "vid1";
15390 + ovl->id = OMAP_DSS_VIDEO1;
15391 + ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3;
15392 + ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
15393 + OMAP_DSS_OVL_CAP_DISPC;
15394 + ovl->info.global_alpha = 255;
15395 + break;
15396 + case 2:
15397 + ovl->name = "vid2";
15398 + ovl->id = OMAP_DSS_VIDEO2;
15399 + ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3;
15400 + ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
15401 + OMAP_DSS_OVL_CAP_DISPC;
15402 + ovl->info.global_alpha = 255;
15403 + break;
15404 + }
15405 +
15406 + ovl->set_manager = &omap_dss_set_manager;
15407 + ovl->unset_manager = &omap_dss_unset_manager;
15408 + ovl->set_overlay_info = &dss_ovl_set_overlay_info;
15409 + ovl->get_overlay_info = &dss_ovl_get_overlay_info;
15410 + ovl->wait_for_go = &dss_ovl_wait_for_go;
15411 +
15412 + omap_dss_add_overlay(ovl);
15413 +
15414 + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
15415 + &pdev->dev.kobj, "overlay%d", i);
15416 +
15417 + if (r) {
15418 + DSSERR("failed to create sysfs file\n");
15419 + continue;
15420 + }
15421 +
15422 + dispc_overlays[i] = ovl;
15423 + }
15424 +
15425 +#ifdef L4_EXAMPLE
15426 + {
15427 + struct omap_overlay *ovl;
15428 + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
15429 +
15430 + BUG_ON(ovl == NULL);
15431 +
15432 + ovl->name = "l4";
15433 + ovl->supported_modes = OMAP_DSS_COLOR_RGB24U;
15434 +
15435 + ovl->set_manager = &omap_dss_set_manager;
15436 + ovl->unset_manager = &omap_dss_unset_manager;
15437 + ovl->set_overlay_info = &dss_ovl_set_overlay_info;
15438 + ovl->get_overlay_info = &dss_ovl_get_overlay_info;
15439 +
15440 + omap_dss_add_overlay(ovl);
15441 +
15442 + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
15443 + &pdev->dev.kobj, "overlayl4");
15444 +
15445 + if (r)
15446 + DSSERR("failed to create sysfs file\n");
15447 +
15448 + l4_overlays[0] = ovl;
15449 + }
15450 +#endif
15451 +}
15452 +
15453 +/* connect overlays to the new device, if not already connected. if force
15454 + * selected, connect always. */
15455 +void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
15456 +{
15457 + int i;
15458 + struct omap_overlay_manager *lcd_mgr;
15459 + struct omap_overlay_manager *tv_mgr;
15460 + struct omap_overlay_manager *mgr = NULL;
15461 +
15462 + lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD);
15463 + tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV);
15464 +
15465 + if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) {
15466 + if (!lcd_mgr->device || force) {
15467 + if (lcd_mgr->device)
15468 + lcd_mgr->unset_device(lcd_mgr);
15469 + lcd_mgr->set_device(lcd_mgr, dssdev);
15470 + mgr = lcd_mgr;
15471 + }
15472 + }
15473 +
15474 + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
15475 + if (!tv_mgr->device || force) {
15476 + if (tv_mgr->device)
15477 + tv_mgr->unset_device(tv_mgr);
15478 + tv_mgr->set_device(tv_mgr, dssdev);
15479 + mgr = tv_mgr;
15480 + }
15481 + }
15482 +
15483 + if (mgr) {
15484 + for (i = 0; i < 3; i++) {
15485 + struct omap_overlay *ovl;
15486 + ovl = omap_dss_get_overlay(i);
15487 + if (!ovl->manager || force) {
15488 + if (ovl->manager)
15489 + omap_dss_unset_manager(ovl);
15490 + omap_dss_set_manager(ovl, mgr);
15491 + }
15492 + }
15493 + }
15494 +}
15495 +
15496 +void dss_uninit_overlays(struct platform_device *pdev)
15497 +{
15498 + struct omap_overlay *ovl;
15499 +
15500 + while (!list_empty(&overlay_list)) {
15501 + ovl = list_first_entry(&overlay_list,
15502 + struct omap_overlay, list);
15503 + list_del(&ovl->list);
15504 + kobject_del(&ovl->kobj);
15505 + kobject_put(&ovl->kobj);
15506 + kfree(ovl);
15507 + }
15508 +
15509 + num_overlays = 0;
15510 +}
15511 +
15512 --- /dev/null
15513 +++ b/drivers/video/omap2/dss/rfbi.c
15514 @@ -0,0 +1,1310 @@
15515 +/*
15516 + * linux/drivers/video/omap2/dss/rfbi.c
15517 + *
15518 + * Copyright (C) 2009 Nokia Corporation
15519 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
15520 + *
15521 + * Some code and ideas taken from drivers/video/omap/ driver
15522 + * by Imre Deak.
15523 + *
15524 + * This program is free software; you can redistribute it and/or modify it
15525 + * under the terms of the GNU General Public License version 2 as published by
15526 + * the Free Software Foundation.
15527 + *
15528 + * This program is distributed in the hope that it will be useful, but WITHOUT
15529 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15530 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15531 + * more details.
15532 + *
15533 + * You should have received a copy of the GNU General Public License along with
15534 + * this program. If not, see <http://www.gnu.org/licenses/>.
15535 + */
15536 +
15537 +#define DSS_SUBSYS_NAME "RFBI"
15538 +
15539 +#include <linux/kernel.h>
15540 +#include <linux/dma-mapping.h>
15541 +#include <linux/vmalloc.h>
15542 +#include <linux/clk.h>
15543 +#include <linux/io.h>
15544 +#include <linux/delay.h>
15545 +#include <linux/kfifo.h>
15546 +#include <linux/ktime.h>
15547 +#include <linux/hrtimer.h>
15548 +#include <linux/seq_file.h>
15549 +
15550 +#include <mach/board.h>
15551 +#include <mach/display.h>
15552 +#include "dss.h"
15553 +
15554 +/*#define MEASURE_PERF*/
15555 +
15556 +#define RFBI_BASE 0x48050800
15557 +
15558 +struct rfbi_reg { u16 idx; };
15559 +
15560 +#define RFBI_REG(idx) ((const struct rfbi_reg) { idx })
15561 +
15562 +#define RFBI_REVISION RFBI_REG(0x0000)
15563 +#define RFBI_SYSCONFIG RFBI_REG(0x0010)
15564 +#define RFBI_SYSSTATUS RFBI_REG(0x0014)
15565 +#define RFBI_CONTROL RFBI_REG(0x0040)
15566 +#define RFBI_PIXEL_CNT RFBI_REG(0x0044)
15567 +#define RFBI_LINE_NUMBER RFBI_REG(0x0048)
15568 +#define RFBI_CMD RFBI_REG(0x004c)
15569 +#define RFBI_PARAM RFBI_REG(0x0050)
15570 +#define RFBI_DATA RFBI_REG(0x0054)
15571 +#define RFBI_READ RFBI_REG(0x0058)
15572 +#define RFBI_STATUS RFBI_REG(0x005c)
15573 +
15574 +#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18)
15575 +#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18)
15576 +#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18)
15577 +#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18)
15578 +#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18)
15579 +#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18)
15580 +
15581 +#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090)
15582 +#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094)
15583 +
15584 +#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param))
15585 +
15586 +#define REG_FLD_MOD(idx, val, start, end) \
15587 + rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end))
15588 +
15589 +/* To work around an RFBI transfer rate limitation */
15590 +#define OMAP_RFBI_RATE_LIMIT 1
15591 +
15592 +enum omap_rfbi_cycleformat {
15593 + OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0,
15594 + OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1,
15595 + OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2,
15596 + OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3,
15597 +};
15598 +
15599 +enum omap_rfbi_datatype {
15600 + OMAP_DSS_RFBI_DATATYPE_12 = 0,
15601 + OMAP_DSS_RFBI_DATATYPE_16 = 1,
15602 + OMAP_DSS_RFBI_DATATYPE_18 = 2,
15603 + OMAP_DSS_RFBI_DATATYPE_24 = 3,
15604 +};
15605 +
15606 +enum omap_rfbi_parallelmode {
15607 + OMAP_DSS_RFBI_PARALLELMODE_8 = 0,
15608 + OMAP_DSS_RFBI_PARALLELMODE_9 = 1,
15609 + OMAP_DSS_RFBI_PARALLELMODE_12 = 2,
15610 + OMAP_DSS_RFBI_PARALLELMODE_16 = 3,
15611 +};
15612 +
15613 +enum update_cmd {
15614 + RFBI_CMD_UPDATE = 0,
15615 + RFBI_CMD_SYNC = 1,
15616 +};
15617 +
15618 +static int rfbi_convert_timings(struct rfbi_timings *t);
15619 +static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div);
15620 +static void process_cmd_fifo(void);
15621 +
15622 +static struct {
15623 + void __iomem *base;
15624 +
15625 + unsigned long l4_khz;
15626 +
15627 + enum omap_rfbi_datatype datatype;
15628 + enum omap_rfbi_parallelmode parallelmode;
15629 +
15630 + enum omap_rfbi_te_mode te_mode;
15631 + int te_enabled;
15632 +
15633 + void (*framedone_callback)(void *data);
15634 + void *framedone_callback_data;
15635 +
15636 + struct omap_dss_device *dssdev[2];
15637 +
15638 + struct kfifo *cmd_fifo;
15639 + spinlock_t cmd_lock;
15640 + struct completion cmd_done;
15641 + atomic_t cmd_fifo_full;
15642 + atomic_t cmd_pending;
15643 +#ifdef MEASURE_PERF
15644 + unsigned perf_bytes;
15645 + ktime_t perf_setup_time;
15646 + ktime_t perf_start_time;
15647 +#endif
15648 +} rfbi;
15649 +
15650 +struct update_region {
15651 + u16 x;
15652 + u16 y;
15653 + u16 w;
15654 + u16 h;
15655 +};
15656 +
15657 +struct update_param {
15658 + u8 rfbi_module;
15659 + u8 cmd;
15660 +
15661 + union {
15662 + struct update_region r;
15663 + struct completion *sync;
15664 + } par;
15665 +};
15666 +
15667 +static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
15668 +{
15669 + __raw_writel(val, rfbi.base + idx.idx);
15670 +}
15671 +
15672 +static inline u32 rfbi_read_reg(const struct rfbi_reg idx)
15673 +{
15674 + return __raw_readl(rfbi.base + idx.idx);
15675 +}
15676 +
15677 +static void rfbi_enable_clocks(bool enable)
15678 +{
15679 + if (enable)
15680 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
15681 + else
15682 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
15683 +}
15684 +
15685 +void omap_rfbi_write_command(const void *buf, u32 len)
15686 +{
15687 + rfbi_enable_clocks(1);
15688 + switch (rfbi.parallelmode) {
15689 + case OMAP_DSS_RFBI_PARALLELMODE_8:
15690 + {
15691 + const u8 *b = buf;
15692 + for (; len; len--)
15693 + rfbi_write_reg(RFBI_CMD, *b++);
15694 + break;
15695 + }
15696 +
15697 + case OMAP_DSS_RFBI_PARALLELMODE_16:
15698 + {
15699 + const u16 *w = buf;
15700 + BUG_ON(len & 1);
15701 + for (; len; len -= 2)
15702 + rfbi_write_reg(RFBI_CMD, *w++);
15703 + break;
15704 + }
15705 +
15706 + case OMAP_DSS_RFBI_PARALLELMODE_9:
15707 + case OMAP_DSS_RFBI_PARALLELMODE_12:
15708 + default:
15709 + BUG();
15710 + }
15711 + rfbi_enable_clocks(0);
15712 +}
15713 +EXPORT_SYMBOL(omap_rfbi_write_command);
15714 +
15715 +void omap_rfbi_read_data(void *buf, u32 len)
15716 +{
15717 + rfbi_enable_clocks(1);
15718 + switch (rfbi.parallelmode) {
15719 + case OMAP_DSS_RFBI_PARALLELMODE_8:
15720 + {
15721 + u8 *b = buf;
15722 + for (; len; len--) {
15723 + rfbi_write_reg(RFBI_READ, 0);
15724 + *b++ = rfbi_read_reg(RFBI_READ);
15725 + }
15726 + break;
15727 + }
15728 +
15729 + case OMAP_DSS_RFBI_PARALLELMODE_16:
15730 + {
15731 + u16 *w = buf;
15732 + BUG_ON(len & ~1);
15733 + for (; len; len -= 2) {
15734 + rfbi_write_reg(RFBI_READ, 0);
15735 + *w++ = rfbi_read_reg(RFBI_READ);
15736 + }
15737 + break;
15738 + }
15739 +
15740 + case OMAP_DSS_RFBI_PARALLELMODE_9:
15741 + case OMAP_DSS_RFBI_PARALLELMODE_12:
15742 + default:
15743 + BUG();
15744 + }
15745 + rfbi_enable_clocks(0);
15746 +}
15747 +EXPORT_SYMBOL(omap_rfbi_read_data);
15748 +
15749 +void omap_rfbi_write_data(const void *buf, u32 len)
15750 +{
15751 + rfbi_enable_clocks(1);
15752 + switch (rfbi.parallelmode) {
15753 + case OMAP_DSS_RFBI_PARALLELMODE_8:
15754 + {
15755 + const u8 *b = buf;
15756 + for (; len; len--)
15757 + rfbi_write_reg(RFBI_PARAM, *b++);
15758 + break;
15759 + }
15760 +
15761 + case OMAP_DSS_RFBI_PARALLELMODE_16:
15762 + {
15763 + const u16 *w = buf;
15764 + BUG_ON(len & 1);
15765 + for (; len; len -= 2)
15766 + rfbi_write_reg(RFBI_PARAM, *w++);
15767 + break;
15768 + }
15769 +
15770 + case OMAP_DSS_RFBI_PARALLELMODE_9:
15771 + case OMAP_DSS_RFBI_PARALLELMODE_12:
15772 + default:
15773 + BUG();
15774 +
15775 + }
15776 + rfbi_enable_clocks(0);
15777 +}
15778 +EXPORT_SYMBOL(omap_rfbi_write_data);
15779 +
15780 +void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
15781 + u16 x, u16 y,
15782 + u16 w, u16 h)
15783 +{
15784 + int start_offset = scr_width * y + x;
15785 + int horiz_offset = scr_width - w;
15786 + int i;
15787 +
15788 + rfbi_enable_clocks(1);
15789 +
15790 + if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
15791 + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
15792 + const u16 __iomem *pd = buf;
15793 + pd += start_offset;
15794 +
15795 + for (; h; --h) {
15796 + for (i = 0; i < w; ++i) {
15797 + const u8 __iomem *b = (const u8 __iomem *)pd;
15798 + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
15799 + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
15800 + ++pd;
15801 + }
15802 + pd += horiz_offset;
15803 + }
15804 + } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 &&
15805 + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
15806 + const u32 __iomem *pd = buf;
15807 + pd += start_offset;
15808 +
15809 + for (; h; --h) {
15810 + for (i = 0; i < w; ++i) {
15811 + const u8 __iomem *b = (const u8 __iomem *)pd;
15812 + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2));
15813 + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
15814 + rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
15815 + ++pd;
15816 + }
15817 + pd += horiz_offset;
15818 + }
15819 + } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
15820 + rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) {
15821 + const u16 __iomem *pd = buf;
15822 + pd += start_offset;
15823 +
15824 + for (; h; --h) {
15825 + for (i = 0; i < w; ++i) {
15826 + rfbi_write_reg(RFBI_PARAM, __raw_readw(pd));
15827 + ++pd;
15828 + }
15829 + pd += horiz_offset;
15830 + }
15831 + } else {
15832 + BUG();
15833 + }
15834 +
15835 + rfbi_enable_clocks(0);
15836 +}
15837 +EXPORT_SYMBOL(omap_rfbi_write_pixels);
15838 +
15839 +#ifdef MEASURE_PERF
15840 +static void perf_mark_setup(void)
15841 +{
15842 + rfbi.perf_setup_time = ktime_get();
15843 +}
15844 +
15845 +static void perf_mark_start(void)
15846 +{
15847 + rfbi.perf_start_time = ktime_get();
15848 +}
15849 +
15850 +static void perf_show(const char *name)
15851 +{
15852 + ktime_t t, setup_time, trans_time;
15853 + u32 total_bytes;
15854 + u32 setup_us, trans_us, total_us;
15855 +
15856 + t = ktime_get();
15857 +
15858 + setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time);
15859 + setup_us = (u32)ktime_to_us(setup_time);
15860 + if (setup_us == 0)
15861 + setup_us = 1;
15862 +
15863 + trans_time = ktime_sub(t, rfbi.perf_start_time);
15864 + trans_us = (u32)ktime_to_us(trans_time);
15865 + if (trans_us == 0)
15866 + trans_us = 1;
15867 +
15868 + total_us = setup_us + trans_us;
15869 +
15870 + total_bytes = rfbi.perf_bytes;
15871 +
15872 + DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, "
15873 + "%u kbytes/sec\n",
15874 + name,
15875 + setup_us,
15876 + trans_us,
15877 + total_us,
15878 + 1000*1000 / total_us,
15879 + total_bytes,
15880 + total_bytes * 1000 / total_us);
15881 +}
15882 +#else
15883 +#define perf_mark_setup()
15884 +#define perf_mark_start()
15885 +#define perf_show(x)
15886 +#endif
15887 +
15888 +void rfbi_transfer_area(u16 width, u16 height,
15889 + void (callback)(void *data), void *data)
15890 +{
15891 + u32 l;
15892 +
15893 + /*BUG_ON(callback == 0);*/
15894 + BUG_ON(rfbi.framedone_callback != NULL);
15895 +
15896 + DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
15897 +
15898 + dispc_set_lcd_size(width, height);
15899 +
15900 + dispc_enable_lcd_out(1);
15901 +
15902 + rfbi.framedone_callback = callback;
15903 + rfbi.framedone_callback_data = data;
15904 +
15905 + rfbi_enable_clocks(1);
15906 +
15907 + rfbi_write_reg(RFBI_PIXEL_CNT, width * height);
15908 +
15909 + l = rfbi_read_reg(RFBI_CONTROL);
15910 + l = FLD_MOD(l, 1, 0, 0); /* enable */
15911 + if (!rfbi.te_enabled)
15912 + l = FLD_MOD(l, 1, 4, 4); /* ITE */
15913 +
15914 + perf_mark_start();
15915 +
15916 + rfbi_write_reg(RFBI_CONTROL, l);
15917 +}
15918 +
15919 +static void framedone_callback(void *data, u32 mask)
15920 +{
15921 + void (*callback)(void *data);
15922 +
15923 + DSSDBG("FRAMEDONE\n");
15924 +
15925 + perf_show("DISPC");
15926 +
15927 + REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0);
15928 +
15929 + rfbi_enable_clocks(0);
15930 +
15931 + callback = rfbi.framedone_callback;
15932 + rfbi.framedone_callback = NULL;
15933 +
15934 + /*callback(rfbi.framedone_callback_data);*/
15935 +
15936 + atomic_set(&rfbi.cmd_pending, 0);
15937 +
15938 + process_cmd_fifo();
15939 +}
15940 +
15941 +#if 1 /* VERBOSE */
15942 +static void rfbi_print_timings(void)
15943 +{
15944 + u32 l;
15945 + u32 time;
15946 +
15947 + l = rfbi_read_reg(RFBI_CONFIG(0));
15948 + time = 1000000000 / rfbi.l4_khz;
15949 + if (l & (1 << 4))
15950 + time *= 2;
15951 +
15952 + DSSDBG("Tick time %u ps\n", time);
15953 + l = rfbi_read_reg(RFBI_ONOFF_TIME(0));
15954 + DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, "
15955 + "REONTIME %d, REOFFTIME %d\n",
15956 + l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f,
15957 + (l >> 20) & 0x0f, (l >> 24) & 0x3f);
15958 +
15959 + l = rfbi_read_reg(RFBI_CYCLE_TIME(0));
15960 + DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, "
15961 + "ACCESSTIME %d\n",
15962 + (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f,
15963 + (l >> 22) & 0x3f);
15964 +}
15965 +#else
15966 +static void rfbi_print_timings(void) {}
15967 +#endif
15968 +
15969 +
15970 +
15971 +
15972 +static u32 extif_clk_period;
15973 +
15974 +static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
15975 +{
15976 + int bus_tick = extif_clk_period * div;
15977 + return (ps + bus_tick - 1) / bus_tick * bus_tick;
15978 +}
15979 +
15980 +static int calc_reg_timing(struct rfbi_timings *t, int div)
15981 +{
15982 + t->clk_div = div;
15983 +
15984 + t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div);
15985 +
15986 + t->we_on_time = round_to_extif_ticks(t->we_on_time, div);
15987 + t->we_off_time = round_to_extif_ticks(t->we_off_time, div);
15988 + t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div);
15989 +
15990 + t->re_on_time = round_to_extif_ticks(t->re_on_time, div);
15991 + t->re_off_time = round_to_extif_ticks(t->re_off_time, div);
15992 + t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div);
15993 +
15994 + t->access_time = round_to_extif_ticks(t->access_time, div);
15995 + t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div);
15996 + t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div);
15997 +
15998 + DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n",
15999 + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
16000 + DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n",
16001 + t->we_on_time, t->we_off_time, t->re_cycle_time,
16002 + t->we_cycle_time);
16003 + DSSDBG("[reg]rdaccess %d cspulse %d\n",
16004 + t->access_time, t->cs_pulse_width);
16005 +
16006 + return rfbi_convert_timings(t);
16007 +}
16008 +
16009 +static int calc_extif_timings(struct rfbi_timings *t)
16010 +{
16011 + u32 max_clk_div;
16012 + int div;
16013 +
16014 + rfbi_get_clk_info(&extif_clk_period, &max_clk_div);
16015 + for (div = 1; div <= max_clk_div; div++) {
16016 + if (calc_reg_timing(t, div) == 0)
16017 + break;
16018 + }
16019 +
16020 + if (div <= max_clk_div)
16021 + return 0;
16022 +
16023 + DSSERR("can't setup timings\n");
16024 + return -1;
16025 +}
16026 +
16027 +
16028 +void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t)
16029 +{
16030 + int r;
16031 +
16032 + if (!t->converted) {
16033 + r = calc_extif_timings(t);
16034 + if (r < 0)
16035 + DSSERR("Failed to calc timings\n");
16036 + }
16037 +
16038 + BUG_ON(!t->converted);
16039 +
16040 + rfbi_enable_clocks(1);
16041 + rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]);
16042 + rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]);
16043 +
16044 + /* TIMEGRANULARITY */
16045 + REG_FLD_MOD(RFBI_CONFIG(rfbi_module),
16046 + (t->tim[2] ? 1 : 0), 4, 4);
16047 +
16048 + rfbi_print_timings();
16049 + rfbi_enable_clocks(0);
16050 +}
16051 +
16052 +static int ps_to_rfbi_ticks(int time, int div)
16053 +{
16054 + unsigned long tick_ps;
16055 + int ret;
16056 +
16057 + /* Calculate in picosecs to yield more exact results */
16058 + tick_ps = 1000000000 / (rfbi.l4_khz) * div;
16059 +
16060 + ret = (time + tick_ps - 1) / tick_ps;
16061 +
16062 + return ret;
16063 +}
16064 +
16065 +#ifdef OMAP_RFBI_RATE_LIMIT
16066 +unsigned long rfbi_get_max_tx_rate(void)
16067 +{
16068 + unsigned long l4_rate, dss1_rate;
16069 + int min_l4_ticks = 0;
16070 + int i;
16071 +
16072 + /* According to TI this can't be calculated so make the
16073 + * adjustments for a couple of known frequencies and warn for
16074 + * others.
16075 + */
16076 + static const struct {
16077 + unsigned long l4_clk; /* HZ */
16078 + unsigned long dss1_clk; /* HZ */
16079 + unsigned long min_l4_ticks;
16080 + } ftab[] = {
16081 + { 55, 132, 7, }, /* 7.86 MPix/s */
16082 + { 110, 110, 12, }, /* 9.16 MPix/s */
16083 + { 110, 132, 10, }, /* 11 Mpix/s */
16084 + { 120, 120, 10, }, /* 12 Mpix/s */
16085 + { 133, 133, 10, }, /* 13.3 Mpix/s */
16086 + };
16087 +
16088 + l4_rate = rfbi.l4_khz / 1000;
16089 + dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000;
16090 +
16091 + for (i = 0; i < ARRAY_SIZE(ftab); i++) {
16092 + /* Use a window instead of an exact match, to account
16093 + * for different DPLL multiplier / divider pairs.
16094 + */
16095 + if (abs(ftab[i].l4_clk - l4_rate) < 3 &&
16096 + abs(ftab[i].dss1_clk - dss1_rate) < 3) {
16097 + min_l4_ticks = ftab[i].min_l4_ticks;
16098 + break;
16099 + }
16100 + }
16101 + if (i == ARRAY_SIZE(ftab)) {
16102 + /* Can't be sure, return anyway the maximum not
16103 + * rate-limited. This might cause a problem only for the
16104 + * tearing synchronisation.
16105 + */
16106 + DSSERR("can't determine maximum RFBI transfer rate\n");
16107 + return rfbi.l4_khz * 1000;
16108 + }
16109 + return rfbi.l4_khz * 1000 / min_l4_ticks;
16110 +}
16111 +#else
16112 +int rfbi_get_max_tx_rate(void)
16113 +{
16114 + return rfbi.l4_khz * 1000;
16115 +}
16116 +#endif
16117 +
16118 +static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
16119 +{
16120 + *clk_period = 1000000000 / rfbi.l4_khz;
16121 + *max_clk_div = 2;
16122 +}
16123 +
16124 +static int rfbi_convert_timings(struct rfbi_timings *t)
16125 +{
16126 + u32 l;
16127 + int reon, reoff, weon, weoff, cson, csoff, cs_pulse;
16128 + int actim, recyc, wecyc;
16129 + int div = t->clk_div;
16130 +
16131 + if (div <= 0 || div > 2)
16132 + return -1;
16133 +
16134 + /* Make sure that after conversion it still holds that:
16135 + * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff,
16136 + * csoff > cson, csoff >= max(weoff, reoff), actim > reon
16137 + */
16138 + weon = ps_to_rfbi_ticks(t->we_on_time, div);
16139 + weoff = ps_to_rfbi_ticks(t->we_off_time, div);
16140 + if (weoff <= weon)
16141 + weoff = weon + 1;
16142 + if (weon > 0x0f)
16143 + return -1;
16144 + if (weoff > 0x3f)
16145 + return -1;
16146 +
16147 + reon = ps_to_rfbi_ticks(t->re_on_time, div);
16148 + reoff = ps_to_rfbi_ticks(t->re_off_time, div);
16149 + if (reoff <= reon)
16150 + reoff = reon + 1;
16151 + if (reon > 0x0f)
16152 + return -1;
16153 + if (reoff > 0x3f)
16154 + return -1;
16155 +
16156 + cson = ps_to_rfbi_ticks(t->cs_on_time, div);
16157 + csoff = ps_to_rfbi_ticks(t->cs_off_time, div);
16158 + if (csoff <= cson)
16159 + csoff = cson + 1;
16160 + if (csoff < max(weoff, reoff))
16161 + csoff = max(weoff, reoff);
16162 + if (cson > 0x0f)
16163 + return -1;
16164 + if (csoff > 0x3f)
16165 + return -1;
16166 +
16167 + l = cson;
16168 + l |= csoff << 4;
16169 + l |= weon << 10;
16170 + l |= weoff << 14;
16171 + l |= reon << 20;
16172 + l |= reoff << 24;
16173 +
16174 + t->tim[0] = l;
16175 +
16176 + actim = ps_to_rfbi_ticks(t->access_time, div);
16177 + if (actim <= reon)
16178 + actim = reon + 1;
16179 + if (actim > 0x3f)
16180 + return -1;
16181 +
16182 + wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div);
16183 + if (wecyc < weoff)
16184 + wecyc = weoff;
16185 + if (wecyc > 0x3f)
16186 + return -1;
16187 +
16188 + recyc = ps_to_rfbi_ticks(t->re_cycle_time, div);
16189 + if (recyc < reoff)
16190 + recyc = reoff;
16191 + if (recyc > 0x3f)
16192 + return -1;
16193 +
16194 + cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div);
16195 + if (cs_pulse > 0x3f)
16196 + return -1;
16197 +
16198 + l = wecyc;
16199 + l |= recyc << 6;
16200 + l |= cs_pulse << 12;
16201 + l |= actim << 22;
16202 +
16203 + t->tim[1] = l;
16204 +
16205 + t->tim[2] = div - 1;
16206 +
16207 + t->converted = 1;
16208 +
16209 + return 0;
16210 +}
16211 +
16212 +/* xxx FIX module selection missing */
16213 +int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
16214 + unsigned hs_pulse_time, unsigned vs_pulse_time,
16215 + int hs_pol_inv, int vs_pol_inv, int extif_div)
16216 +{
16217 + int hs, vs;
16218 + int min;
16219 + u32 l;
16220 +
16221 + hs = ps_to_rfbi_ticks(hs_pulse_time, 1);
16222 + vs = ps_to_rfbi_ticks(vs_pulse_time, 1);
16223 + if (hs < 2)
16224 + return -EDOM;
16225 + if (mode == OMAP_DSS_RFBI_TE_MODE_2)
16226 + min = 2;
16227 + else /* OMAP_DSS_RFBI_TE_MODE_1 */
16228 + min = 4;
16229 + if (vs < min)
16230 + return -EDOM;
16231 + if (vs == hs)
16232 + return -EINVAL;
16233 + rfbi.te_mode = mode;
16234 + DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n",
16235 + mode, hs, vs, hs_pol_inv, vs_pol_inv);
16236 +
16237 + rfbi_enable_clocks(1);
16238 + rfbi_write_reg(RFBI_HSYNC_WIDTH, hs);
16239 + rfbi_write_reg(RFBI_VSYNC_WIDTH, vs);
16240 +
16241 + l = rfbi_read_reg(RFBI_CONFIG(0));
16242 + if (hs_pol_inv)
16243 + l &= ~(1 << 21);
16244 + else
16245 + l |= 1 << 21;
16246 + if (vs_pol_inv)
16247 + l &= ~(1 << 20);
16248 + else
16249 + l |= 1 << 20;
16250 + rfbi_enable_clocks(0);
16251 +
16252 + return 0;
16253 +}
16254 +EXPORT_SYMBOL(omap_rfbi_setup_te);
16255 +
16256 +/* xxx FIX module selection missing */
16257 +int omap_rfbi_enable_te(bool enable, unsigned line)
16258 +{
16259 + u32 l;
16260 +
16261 + DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode);
16262 + if (line > (1 << 11) - 1)
16263 + return -EINVAL;
16264 +
16265 + rfbi_enable_clocks(1);
16266 + l = rfbi_read_reg(RFBI_CONFIG(0));
16267 + l &= ~(0x3 << 2);
16268 + if (enable) {
16269 + rfbi.te_enabled = 1;
16270 + l |= rfbi.te_mode << 2;
16271 + } else
16272 + rfbi.te_enabled = 0;
16273 + rfbi_write_reg(RFBI_CONFIG(0), l);
16274 + rfbi_write_reg(RFBI_LINE_NUMBER, line);
16275 + rfbi_enable_clocks(0);
16276 +
16277 + return 0;
16278 +}
16279 +EXPORT_SYMBOL(omap_rfbi_enable_te);
16280 +
16281 +#if 0
16282 +static void rfbi_enable_config(int enable1, int enable2)
16283 +{
16284 + u32 l;
16285 + int cs = 0;
16286 +
16287 + if (enable1)
16288 + cs |= 1<<0;
16289 + if (enable2)
16290 + cs |= 1<<1;
16291 +
16292 + rfbi_enable_clocks(1);
16293 +
16294 + l = rfbi_read_reg(RFBI_CONTROL);
16295 +
16296 + l = FLD_MOD(l, cs, 3, 2);
16297 + l = FLD_MOD(l, 0, 1, 1);
16298 +
16299 + rfbi_write_reg(RFBI_CONTROL, l);
16300 +
16301 +
16302 + l = rfbi_read_reg(RFBI_CONFIG(0));
16303 + l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */
16304 + /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
16305 + /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */
16306 +
16307 + l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */
16308 + l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */
16309 + l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */
16310 +
16311 + l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0);
16312 + rfbi_write_reg(RFBI_CONFIG(0), l);
16313 +
16314 + rfbi_enable_clocks(0);
16315 +}
16316 +#endif
16317 +
16318 +int rfbi_configure(int rfbi_module, int bpp, int lines)
16319 +{
16320 + u32 l;
16321 + int cycle1 = 0, cycle2 = 0, cycle3 = 0;
16322 + enum omap_rfbi_cycleformat cycleformat;
16323 + enum omap_rfbi_datatype datatype;
16324 + enum omap_rfbi_parallelmode parallelmode;
16325 +
16326 + switch (bpp) {
16327 + case 12:
16328 + datatype = OMAP_DSS_RFBI_DATATYPE_12;
16329 + break;
16330 + case 16:
16331 + datatype = OMAP_DSS_RFBI_DATATYPE_16;
16332 + break;
16333 + case 18:
16334 + datatype = OMAP_DSS_RFBI_DATATYPE_18;
16335 + break;
16336 + case 24:
16337 + datatype = OMAP_DSS_RFBI_DATATYPE_24;
16338 + break;
16339 + default:
16340 + BUG();
16341 + return 1;
16342 + }
16343 + rfbi.datatype = datatype;
16344 +
16345 + switch (lines) {
16346 + case 8:
16347 + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8;
16348 + break;
16349 + case 9:
16350 + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9;
16351 + break;
16352 + case 12:
16353 + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12;
16354 + break;
16355 + case 16:
16356 + parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16;
16357 + break;
16358 + default:
16359 + BUG();
16360 + return 1;
16361 + }
16362 + rfbi.parallelmode = parallelmode;
16363 +
16364 + if ((bpp % lines) == 0) {
16365 + switch (bpp / lines) {
16366 + case 1:
16367 + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1;
16368 + break;
16369 + case 2:
16370 + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1;
16371 + break;
16372 + case 3:
16373 + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1;
16374 + break;
16375 + default:
16376 + BUG();
16377 + return 1;
16378 + }
16379 + } else if ((2 * bpp % lines) == 0) {
16380 + if ((2 * bpp / lines) == 3)
16381 + cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2;
16382 + else {
16383 + BUG();
16384 + return 1;
16385 + }
16386 + } else {
16387 + BUG();
16388 + return 1;
16389 + }
16390 +
16391 + switch (cycleformat) {
16392 + case OMAP_DSS_RFBI_CYCLEFORMAT_1_1:
16393 + cycle1 = lines;
16394 + break;
16395 +
16396 + case OMAP_DSS_RFBI_CYCLEFORMAT_2_1:
16397 + cycle1 = lines;
16398 + cycle2 = lines;
16399 + break;
16400 +
16401 + case OMAP_DSS_RFBI_CYCLEFORMAT_3_1:
16402 + cycle1 = lines;
16403 + cycle2 = lines;
16404 + cycle3 = lines;
16405 + break;
16406 +
16407 + case OMAP_DSS_RFBI_CYCLEFORMAT_3_2:
16408 + cycle1 = lines;
16409 + cycle2 = (lines / 2) | ((lines / 2) << 16);
16410 + cycle3 = (lines << 16);
16411 + break;
16412 + }
16413 +
16414 + rfbi_enable_clocks(1);
16415 +
16416 + REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */
16417 +
16418 + l = 0;
16419 + l |= FLD_VAL(parallelmode, 1, 0);
16420 + l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */
16421 + l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */
16422 + l |= FLD_VAL(datatype, 6, 5);
16423 + /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
16424 + l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */
16425 + l |= FLD_VAL(cycleformat, 10, 9);
16426 + l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */
16427 + l |= FLD_VAL(0, 16, 16); /* A0POLARITY */
16428 + l |= FLD_VAL(0, 17, 17); /* REPOLARITY */
16429 + l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */
16430 + l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */
16431 + l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */
16432 + l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */
16433 + rfbi_write_reg(RFBI_CONFIG(rfbi_module), l);
16434 +
16435 + rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1);
16436 + rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2);
16437 + rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3);
16438 +
16439 +
16440 + l = rfbi_read_reg(RFBI_CONTROL);
16441 + l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */
16442 + l = FLD_MOD(l, 0, 1, 1); /* clear bypass */
16443 + rfbi_write_reg(RFBI_CONTROL, l);
16444 +
16445 +
16446 + DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n",
16447 + bpp, lines, cycle1, cycle2, cycle3);
16448 +
16449 + rfbi_enable_clocks(0);
16450 +
16451 + return 0;
16452 +}
16453 +EXPORT_SYMBOL(rfbi_configure);
16454 +
16455 +static int rfbi_find_display(struct omap_dss_device *dssdev)
16456 +{
16457 + if (dssdev == rfbi.dssdev[0])
16458 + return 0;
16459 +
16460 + if (dssdev == rfbi.dssdev[1])
16461 + return 1;
16462 +
16463 + BUG();
16464 + return -1;
16465 +}
16466 +
16467 +
16468 +static void signal_fifo_waiters(void)
16469 +{
16470 + if (atomic_read(&rfbi.cmd_fifo_full) > 0) {
16471 + /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */
16472 + complete(&rfbi.cmd_done);
16473 + atomic_dec(&rfbi.cmd_fifo_full);
16474 + }
16475 +}
16476 +
16477 +/* returns 1 for async op, and 0 for sync op */
16478 +static int do_update(struct omap_dss_device *dssdev, struct update_region *upd)
16479 +{
16480 + u16 x = upd->x;
16481 + u16 y = upd->y;
16482 + u16 w = upd->w;
16483 + u16 h = upd->h;
16484 +
16485 + perf_mark_setup();
16486 +
16487 + if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
16488 + /*dssdev->driver->enable_te(dssdev, 1); */
16489 + dss_setup_partial_planes(dssdev, &x, &y, &w, &h);
16490 + }
16491 +
16492 +#ifdef MEASURE_PERF
16493 + rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */
16494 +#endif
16495 +
16496 + dssdev->driver->setup_update(dssdev, x, y, w, h);
16497 +
16498 + if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
16499 + rfbi_transfer_area(w, h, NULL, NULL);
16500 + return 1;
16501 + } else {
16502 + struct omap_overlay *ovl;
16503 + void __iomem *addr;
16504 + int scr_width;
16505 +
16506 + ovl = dssdev->manager->overlays[0];
16507 + scr_width = ovl->info.screen_width;
16508 + addr = ovl->info.vaddr;
16509 +
16510 + omap_rfbi_write_pixels(addr, scr_width, x, y, w, h);
16511 +
16512 + perf_show("L4");
16513 +
16514 + return 0;
16515 + }
16516 +}
16517 +
16518 +static void process_cmd_fifo(void)
16519 +{
16520 + int len;
16521 + struct update_param p;
16522 + struct omap_dss_device *dssdev;
16523 + unsigned long flags;
16524 +
16525 + if (atomic_inc_return(&rfbi.cmd_pending) != 1)
16526 + return;
16527 +
16528 + while (true) {
16529 + spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
16530 +
16531 + len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p,
16532 + sizeof(struct update_param));
16533 + if (len == 0) {
16534 + DSSDBG("nothing more in fifo\n");
16535 + atomic_set(&rfbi.cmd_pending, 0);
16536 + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
16537 + break;
16538 + }
16539 +
16540 + /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/
16541 +
16542 + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
16543 +
16544 + BUG_ON(len != sizeof(struct update_param));
16545 + BUG_ON(p.rfbi_module > 1);
16546 +
16547 + dssdev = rfbi.dssdev[p.rfbi_module];
16548 +
16549 + if (p.cmd == RFBI_CMD_UPDATE) {
16550 + if (do_update(dssdev, &p.par.r))
16551 + break; /* async op */
16552 + } else if (p.cmd == RFBI_CMD_SYNC) {
16553 + DSSDBG("Signaling SYNC done!\n");
16554 + complete(p.par.sync);
16555 + } else
16556 + BUG();
16557 + }
16558 +
16559 + signal_fifo_waiters();
16560 +}
16561 +
16562 +static void rfbi_push_cmd(struct update_param *p)
16563 +{
16564 + int ret;
16565 +
16566 + while (1) {
16567 + unsigned long flags;
16568 + int available;
16569 +
16570 + spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
16571 + available = RFBI_CMD_FIFO_LEN_BYTES -
16572 + __kfifo_len(rfbi.cmd_fifo);
16573 +
16574 +/* DSSDBG("%d bytes left in fifo\n", available); */
16575 + if (available < sizeof(struct update_param)) {
16576 + DSSDBG("Going to wait because FIFO FULL..\n");
16577 + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
16578 + atomic_inc(&rfbi.cmd_fifo_full);
16579 + wait_for_completion(&rfbi.cmd_done);
16580 + /*DSSDBG("Woke up because fifo not full anymore\n");*/
16581 + continue;
16582 + }
16583 +
16584 + ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p,
16585 + sizeof(struct update_param));
16586 +/* DSSDBG("pushed %d bytes\n", ret);*/
16587 +
16588 + spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
16589 +
16590 + BUG_ON(ret != sizeof(struct update_param));
16591 +
16592 + break;
16593 + }
16594 +}
16595 +
16596 +static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h)
16597 +{
16598 + struct update_param p;
16599 +
16600 + p.rfbi_module = rfbi_module;
16601 + p.cmd = RFBI_CMD_UPDATE;
16602 +
16603 + p.par.r.x = x;
16604 + p.par.r.y = y;
16605 + p.par.r.w = w;
16606 + p.par.r.h = h;
16607 +
16608 + DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h);
16609 +
16610 + rfbi_push_cmd(&p);
16611 +
16612 + process_cmd_fifo();
16613 +}
16614 +
16615 +static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp)
16616 +{
16617 + struct update_param p;
16618 +
16619 + p.rfbi_module = rfbi_module;
16620 + p.cmd = RFBI_CMD_SYNC;
16621 + p.par.sync = sync_comp;
16622 +
16623 + rfbi_push_cmd(&p);
16624 +
16625 + DSSDBG("RFBI sync pushed to cmd fifo\n");
16626 +
16627 + process_cmd_fifo();
16628 +}
16629 +
16630 +void rfbi_dump_regs(struct seq_file *s)
16631 +{
16632 +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r))
16633 +
16634 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
16635 +
16636 + DUMPREG(RFBI_REVISION);
16637 + DUMPREG(RFBI_SYSCONFIG);
16638 + DUMPREG(RFBI_SYSSTATUS);
16639 + DUMPREG(RFBI_CONTROL);
16640 + DUMPREG(RFBI_PIXEL_CNT);
16641 + DUMPREG(RFBI_LINE_NUMBER);
16642 + DUMPREG(RFBI_CMD);
16643 + DUMPREG(RFBI_PARAM);
16644 + DUMPREG(RFBI_DATA);
16645 + DUMPREG(RFBI_READ);
16646 + DUMPREG(RFBI_STATUS);
16647 +
16648 + DUMPREG(RFBI_CONFIG(0));
16649 + DUMPREG(RFBI_ONOFF_TIME(0));
16650 + DUMPREG(RFBI_CYCLE_TIME(0));
16651 + DUMPREG(RFBI_DATA_CYCLE1(0));
16652 + DUMPREG(RFBI_DATA_CYCLE2(0));
16653 + DUMPREG(RFBI_DATA_CYCLE3(0));
16654 +
16655 + DUMPREG(RFBI_CONFIG(1));
16656 + DUMPREG(RFBI_ONOFF_TIME(1));
16657 + DUMPREG(RFBI_CYCLE_TIME(1));
16658 + DUMPREG(RFBI_DATA_CYCLE1(1));
16659 + DUMPREG(RFBI_DATA_CYCLE2(1));
16660 + DUMPREG(RFBI_DATA_CYCLE3(1));
16661 +
16662 + DUMPREG(RFBI_VSYNC_WIDTH);
16663 + DUMPREG(RFBI_HSYNC_WIDTH);
16664 +
16665 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
16666 +#undef DUMPREG
16667 +}
16668 +
16669 +int rfbi_init(void)
16670 +{
16671 + u32 rev;
16672 + u32 l;
16673 +
16674 + spin_lock_init(&rfbi.cmd_lock);
16675 + rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL,
16676 + &rfbi.cmd_lock);
16677 + if (IS_ERR(rfbi.cmd_fifo))
16678 + return -ENOMEM;
16679 +
16680 + init_completion(&rfbi.cmd_done);
16681 + atomic_set(&rfbi.cmd_fifo_full, 0);
16682 + atomic_set(&rfbi.cmd_pending, 0);
16683 +
16684 + rfbi.base = ioremap(RFBI_BASE, SZ_256);
16685 + if (!rfbi.base) {
16686 + DSSERR("can't ioremap RFBI\n");
16687 + return -ENOMEM;
16688 + }
16689 +
16690 + rfbi_enable_clocks(1);
16691 +
16692 + msleep(10);
16693 +
16694 + rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000;
16695 +
16696 + /* Enable autoidle and smart-idle */
16697 + l = rfbi_read_reg(RFBI_SYSCONFIG);
16698 + l |= (1 << 0) | (2 << 3);
16699 + rfbi_write_reg(RFBI_SYSCONFIG, l);
16700 +
16701 + rev = rfbi_read_reg(RFBI_REVISION);
16702 + printk(KERN_INFO "OMAP RFBI rev %d.%d\n",
16703 + FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
16704 +
16705 + rfbi_enable_clocks(0);
16706 +
16707 + return 0;
16708 +}
16709 +
16710 +void rfbi_exit(void)
16711 +{
16712 + DSSDBG("rfbi_exit\n");
16713 +
16714 + kfifo_free(rfbi.cmd_fifo);
16715 +
16716 + iounmap(rfbi.base);
16717 +}
16718 +
16719 +/* struct omap_display support */
16720 +static int rfbi_display_update(struct omap_dss_device *dssdev,
16721 + u16 x, u16 y, u16 w, u16 h)
16722 +{
16723 + int rfbi_module;
16724 +
16725 + if (w == 0 || h == 0)
16726 + return 0;
16727 +
16728 + rfbi_module = rfbi_find_display(dssdev);
16729 +
16730 + rfbi_push_update(rfbi_module, x, y, w, h);
16731 +
16732 + return 0;
16733 +}
16734 +
16735 +static int rfbi_display_sync(struct omap_dss_device *dssdev)
16736 +{
16737 + struct completion sync_comp;
16738 + int rfbi_module;
16739 +
16740 + rfbi_module = rfbi_find_display(dssdev);
16741 +
16742 + init_completion(&sync_comp);
16743 + rfbi_push_sync(rfbi_module, &sync_comp);
16744 + DSSDBG("Waiting for SYNC to happen...\n");
16745 + wait_for_completion(&sync_comp);
16746 + DSSDBG("Released from SYNC\n");
16747 + return 0;
16748 +}
16749 +
16750 +static int rfbi_display_enable_te(struct omap_dss_device *dssdev, bool enable)
16751 +{
16752 + dssdev->driver->enable_te(dssdev, enable);
16753 + return 0;
16754 +}
16755 +
16756 +static int rfbi_display_enable(struct omap_dss_device *dssdev)
16757 +{
16758 + int r;
16759 +
16760 + r = omap_dss_start_device(dssdev);
16761 + if (r) {
16762 + DSSERR("failed to start device\n");
16763 + goto err0;
16764 + }
16765 +
16766 + r = omap_dispc_register_isr(framedone_callback, NULL,
16767 + DISPC_IRQ_FRAMEDONE);
16768 + if (r) {
16769 + DSSERR("can't get FRAMEDONE irq\n");
16770 + goto err1;
16771 + }
16772 +
16773 + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
16774 +
16775 + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI);
16776 +
16777 + dispc_set_tft_data_lines(dssdev->ctrl.pixel_size);
16778 +
16779 + rfbi_configure(dssdev->phy.rfbi.channel,
16780 + dssdev->ctrl.pixel_size,
16781 + dssdev->phy.rfbi.data_lines);
16782 +
16783 + rfbi_set_timings(dssdev->phy.rfbi.channel,
16784 + &dssdev->ctrl.rfbi_timings);
16785 +
16786 +
16787 + if (dssdev->driver->enable) {
16788 + r = dssdev->driver->enable(dssdev);
16789 + if (r)
16790 + goto err2;
16791 + }
16792 +
16793 + return 0;
16794 +err2:
16795 + omap_dispc_unregister_isr(framedone_callback, NULL,
16796 + DISPC_IRQ_FRAMEDONE);
16797 +err1:
16798 + omap_dss_stop_device(dssdev);
16799 +err0:
16800 + return r;
16801 +}
16802 +
16803 +static void rfbi_display_disable(struct omap_dss_device *dssdev)
16804 +{
16805 + dssdev->driver->disable(dssdev);
16806 + omap_dispc_unregister_isr(framedone_callback, NULL,
16807 + DISPC_IRQ_FRAMEDONE);
16808 + omap_dss_stop_device(dssdev);
16809 +}
16810 +
16811 +int rfbi_init_display(struct omap_dss_device *dssdev)
16812 +{
16813 + dssdev->enable = rfbi_display_enable;
16814 + dssdev->disable = rfbi_display_disable;
16815 + dssdev->update = rfbi_display_update;
16816 + dssdev->sync = rfbi_display_sync;
16817 + dssdev->enable_te = rfbi_display_enable_te;
16818 +
16819 + rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev;
16820 +
16821 + dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
16822 +
16823 + return 0;
16824 +}
16825 --- /dev/null
16826 +++ b/drivers/video/omap2/dss/sdi.c
16827 @@ -0,0 +1,261 @@
16828 +/*
16829 + * linux/drivers/video/omap2/dss/sdi.c
16830 + *
16831 + * Copyright (C) 2009 Nokia Corporation
16832 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
16833 + *
16834 + * This program is free software; you can redistribute it and/or modify it
16835 + * under the terms of the GNU General Public License version 2 as published by
16836 + * the Free Software Foundation.
16837 + *
16838 + * This program is distributed in the hope that it will be useful, but WITHOUT
16839 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16840 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16841 + * more details.
16842 + *
16843 + * You should have received a copy of the GNU General Public License along with
16844 + * this program. If not, see <http://www.gnu.org/licenses/>.
16845 + */
16846 +
16847 +#define DSS_SUBSYS_NAME "SDI"
16848 +
16849 +#include <linux/kernel.h>
16850 +#include <linux/clk.h>
16851 +#include <linux/delay.h>
16852 +#include <linux/err.h>
16853 +
16854 +#include <mach/board.h>
16855 +#include <mach/display.h>
16856 +#include "dss.h"
16857 +
16858 +static struct {
16859 + bool skip_init;
16860 + bool update_enabled;
16861 +} sdi;
16862 +
16863 +static void sdi_basic_init(void)
16864 +{
16865 + dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
16866 +
16867 + dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
16868 + dispc_set_tft_data_lines(24);
16869 + dispc_lcd_enable_signal_polarity(1);
16870 +}
16871 +
16872 +static int sdi_display_enable(struct omap_dss_device *dssdev)
16873 +{
16874 + struct omap_video_timings *t = &dssdev->panel.timings;
16875 + struct dispc_clock_info cinfo;
16876 + u16 lck_div, pck_div;
16877 + unsigned long fck;
16878 + unsigned long pck;
16879 + int r;
16880 +
16881 + r = omap_dss_start_device(dssdev);
16882 + if (r) {
16883 + DSSERR("failed to start device\n");
16884 + goto err0;
16885 + }
16886 +
16887 + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
16888 + DSSERR("dssdev already enabled\n");
16889 + r = -EINVAL;
16890 + goto err1;
16891 + }
16892 +
16893 + /* In case of skip_init sdi_init has already enabled the clocks */
16894 + if (!sdi.skip_init)
16895 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
16896 +
16897 + sdi_basic_init();
16898 +
16899 + /* 15.5.9.1.2 */
16900 + dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF;
16901 +
16902 + dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
16903 + dssdev->panel.acb);
16904 +
16905 + if (!sdi.skip_init)
16906 + r = dispc_calc_clock_div(1, t->pixel_clock * 1000,
16907 + &cinfo);
16908 + else
16909 + r = dispc_get_clock_div(&cinfo);
16910 +
16911 + if (r)
16912 + goto err2;
16913 +
16914 + fck = cinfo.fck;
16915 + lck_div = cinfo.lck_div;
16916 + pck_div = cinfo.pck_div;
16917 +
16918 + pck = fck / lck_div / pck_div / 1000;
16919 +
16920 + if (pck != t->pixel_clock) {
16921 + DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
16922 + "got %lu kHz\n",
16923 + t->pixel_clock, pck);
16924 +
16925 + t->pixel_clock = pck;
16926 + }
16927 +
16928 +
16929 + dispc_set_lcd_timings(t);
16930 +
16931 + r = dispc_set_clock_div(&cinfo);
16932 + if (r)
16933 + goto err2;
16934 +
16935 + if (!sdi.skip_init) {
16936 + dss_sdi_init(dssdev->phy.sdi.datapairs);
16937 + dss_sdi_enable();
16938 + mdelay(2);
16939 + }
16940 +
16941 + dispc_enable_lcd_out(1);
16942 +
16943 + if (dssdev->driver->enable) {
16944 + r = dssdev->driver->enable(dssdev);
16945 + if (r)
16946 + goto err3;
16947 + }
16948 +
16949 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
16950 +
16951 + sdi.skip_init = 0;
16952 +
16953 + return 0;
16954 +err3:
16955 + dispc_enable_lcd_out(0);
16956 +err2:
16957 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
16958 +err1:
16959 + omap_dss_stop_device(dssdev);
16960 +err0:
16961 + return r;
16962 +}
16963 +
16964 +static int sdi_display_resume(struct omap_dss_device *dssdev);
16965 +
16966 +static void sdi_display_disable(struct omap_dss_device *dssdev)
16967 +{
16968 + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
16969 + return;
16970 +
16971 + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
16972 + sdi_display_resume(dssdev);
16973 +
16974 + if (dssdev->driver->disable)
16975 + dssdev->driver->disable(dssdev);
16976 +
16977 + dispc_enable_lcd_out(0);
16978 +
16979 + dss_sdi_disable();
16980 +
16981 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
16982 +
16983 + dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
16984 +
16985 + omap_dss_stop_device(dssdev);
16986 +}
16987 +
16988 +static int sdi_display_suspend(struct omap_dss_device *dssdev)
16989 +{
16990 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
16991 + return -EINVAL;
16992 +
16993 + if (dssdev->driver->suspend)
16994 + dssdev->driver->suspend(dssdev);
16995 +
16996 + dispc_enable_lcd_out(0);
16997 +
16998 + dss_sdi_disable();
16999 +
17000 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
17001 +
17002 + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
17003 +
17004 + return 0;
17005 +}
17006 +
17007 +static int sdi_display_resume(struct omap_dss_device *dssdev)
17008 +{
17009 + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
17010 + return -EINVAL;
17011 +
17012 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
17013 +
17014 + dss_sdi_enable();
17015 + mdelay(2);
17016 +
17017 + dispc_enable_lcd_out(1);
17018 +
17019 + if (dssdev->driver->resume)
17020 + dssdev->driver->resume(dssdev);
17021 +
17022 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
17023 +
17024 + return 0;
17025 +}
17026 +
17027 +static int sdi_display_set_update_mode(struct omap_dss_device *dssdev,
17028 + enum omap_dss_update_mode mode)
17029 +{
17030 + if (mode == OMAP_DSS_UPDATE_MANUAL)
17031 + return -EINVAL;
17032 +
17033 + if (mode == OMAP_DSS_UPDATE_DISABLED) {
17034 + dispc_enable_lcd_out(0);
17035 + sdi.update_enabled = 0;
17036 + } else {
17037 + dispc_enable_lcd_out(1);
17038 + sdi.update_enabled = 1;
17039 + }
17040 +
17041 + return 0;
17042 +}
17043 +
17044 +static enum omap_dss_update_mode sdi_display_get_update_mode(
17045 + struct omap_dss_device *dssdev)
17046 +{
17047 + return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
17048 + OMAP_DSS_UPDATE_DISABLED;
17049 +}
17050 +
17051 +static void sdi_get_timings(struct omap_dss_device *dssdev,
17052 + struct omap_video_timings *timings)
17053 +{
17054 + *timings = dssdev->panel.timings;
17055 +}
17056 +
17057 +int sdi_init_display(struct omap_dss_device *dssdev)
17058 +{
17059 + DSSDBG("SDI init\n");
17060 +
17061 + dssdev->enable = sdi_display_enable;
17062 + dssdev->disable = sdi_display_disable;
17063 + dssdev->suspend = sdi_display_suspend;
17064 + dssdev->resume = sdi_display_resume;
17065 + dssdev->set_update_mode = sdi_display_set_update_mode;
17066 + dssdev->get_update_mode = sdi_display_get_update_mode;
17067 + dssdev->get_timings = sdi_get_timings;
17068 +
17069 + return 0;
17070 +}
17071 +
17072 +int sdi_init(bool skip_init)
17073 +{
17074 + /* we store this for first display enable, then clear it */
17075 + sdi.skip_init = skip_init;
17076 +
17077 + /*
17078 + * Enable clocks already here, otherwise there would be a toggle
17079 + * of them until sdi_display_enable is called.
17080 + */
17081 + if (skip_init)
17082 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
17083 + return 0;
17084 +}
17085 +
17086 +void sdi_exit(void)
17087 +{
17088 +}
17089 --- /dev/null
17090 +++ b/drivers/video/omap2/dss/venc.c
17091 @@ -0,0 +1,797 @@
17092 +/*
17093 + * linux/drivers/video/omap2/dss/venc.c
17094 + *
17095 + * Copyright (C) 2009 Nokia Corporation
17096 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
17097 + *
17098 + * VENC settings from TI's DSS driver
17099 + *
17100 + * This program is free software; you can redistribute it and/or modify it
17101 + * under the terms of the GNU General Public License version 2 as published by
17102 + * the Free Software Foundation.
17103 + *
17104 + * This program is distributed in the hope that it will be useful, but WITHOUT
17105 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17106 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17107 + * more details.
17108 + *
17109 + * You should have received a copy of the GNU General Public License along with
17110 + * this program. If not, see <http://www.gnu.org/licenses/>.
17111 + */
17112 +
17113 +#define DSS_SUBSYS_NAME "VENC"
17114 +
17115 +#include <linux/kernel.h>
17116 +#include <linux/module.h>
17117 +#include <linux/clk.h>
17118 +#include <linux/err.h>
17119 +#include <linux/io.h>
17120 +#include <linux/mutex.h>
17121 +#include <linux/completion.h>
17122 +#include <linux/delay.h>
17123 +#include <linux/string.h>
17124 +#include <linux/seq_file.h>
17125 +#include <linux/platform_device.h>
17126 +#include <linux/regulator/consumer.h>
17127 +
17128 +#include <mach/display.h>
17129 +#include <mach/cpu.h>
17130 +
17131 +#include "dss.h"
17132 +
17133 +#define VENC_BASE 0x48050C00
17134 +
17135 +/* Venc registers */
17136 +#define VENC_REV_ID 0x00
17137 +#define VENC_STATUS 0x04
17138 +#define VENC_F_CONTROL 0x08
17139 +#define VENC_VIDOUT_CTRL 0x10
17140 +#define VENC_SYNC_CTRL 0x14
17141 +#define VENC_LLEN 0x1C
17142 +#define VENC_FLENS 0x20
17143 +#define VENC_HFLTR_CTRL 0x24
17144 +#define VENC_CC_CARR_WSS_CARR 0x28
17145 +#define VENC_C_PHASE 0x2C
17146 +#define VENC_GAIN_U 0x30
17147 +#define VENC_GAIN_V 0x34
17148 +#define VENC_GAIN_Y 0x38
17149 +#define VENC_BLACK_LEVEL 0x3C
17150 +#define VENC_BLANK_LEVEL 0x40
17151 +#define VENC_X_COLOR 0x44
17152 +#define VENC_M_CONTROL 0x48
17153 +#define VENC_BSTAMP_WSS_DATA 0x4C
17154 +#define VENC_S_CARR 0x50
17155 +#define VENC_LINE21 0x54
17156 +#define VENC_LN_SEL 0x58
17157 +#define VENC_L21__WC_CTL 0x5C
17158 +#define VENC_HTRIGGER_VTRIGGER 0x60
17159 +#define VENC_SAVID__EAVID 0x64
17160 +#define VENC_FLEN__FAL 0x68
17161 +#define VENC_LAL__PHASE_RESET 0x6C
17162 +#define VENC_HS_INT_START_STOP_X 0x70
17163 +#define VENC_HS_EXT_START_STOP_X 0x74
17164 +#define VENC_VS_INT_START_X 0x78
17165 +#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
17166 +#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
17167 +#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
17168 +#define VENC_VS_EXT_STOP_Y 0x88
17169 +#define VENC_AVID_START_STOP_X 0x90
17170 +#define VENC_AVID_START_STOP_Y 0x94
17171 +#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
17172 +#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
17173 +#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
17174 +#define VENC_TVDETGP_INT_START_STOP_X 0xB0
17175 +#define VENC_TVDETGP_INT_START_STOP_Y 0xB4
17176 +#define VENC_GEN_CTRL 0xB8
17177 +#define VENC_OUTPUT_CONTROL 0xC4
17178 +#define VENC_OUTPUT_TEST 0xC8
17179 +#define VENC_DAC_B__DAC_C 0xC8
17180 +
17181 +struct venc_config {
17182 + u32 f_control;
17183 + u32 vidout_ctrl;
17184 + u32 sync_ctrl;
17185 + u32 llen;
17186 + u32 flens;
17187 + u32 hfltr_ctrl;
17188 + u32 cc_carr_wss_carr;
17189 + u32 c_phase;
17190 + u32 gain_u;
17191 + u32 gain_v;
17192 + u32 gain_y;
17193 + u32 black_level;
17194 + u32 blank_level;
17195 + u32 x_color;
17196 + u32 m_control;
17197 + u32 bstamp_wss_data;
17198 + u32 s_carr;
17199 + u32 line21;
17200 + u32 ln_sel;
17201 + u32 l21__wc_ctl;
17202 + u32 htrigger_vtrigger;
17203 + u32 savid__eavid;
17204 + u32 flen__fal;
17205 + u32 lal__phase_reset;
17206 + u32 hs_int_start_stop_x;
17207 + u32 hs_ext_start_stop_x;
17208 + u32 vs_int_start_x;
17209 + u32 vs_int_stop_x__vs_int_start_y;
17210 + u32 vs_int_stop_y__vs_ext_start_x;
17211 + u32 vs_ext_stop_x__vs_ext_start_y;
17212 + u32 vs_ext_stop_y;
17213 + u32 avid_start_stop_x;
17214 + u32 avid_start_stop_y;
17215 + u32 fid_int_start_x__fid_int_start_y;
17216 + u32 fid_int_offset_y__fid_ext_start_x;
17217 + u32 fid_ext_start_y__fid_ext_offset_y;
17218 + u32 tvdetgp_int_start_stop_x;
17219 + u32 tvdetgp_int_start_stop_y;
17220 + u32 gen_ctrl;
17221 +};
17222 +
17223 +/* from TRM */
17224 +static const struct venc_config venc_config_pal_trm = {
17225 + .f_control = 0,
17226 + .vidout_ctrl = 1,
17227 + .sync_ctrl = 0x40,
17228 + .llen = 0x35F, /* 863 */
17229 + .flens = 0x270, /* 624 */
17230 + .hfltr_ctrl = 0,
17231 + .cc_carr_wss_carr = 0x2F7225ED,
17232 + .c_phase = 0,
17233 + .gain_u = 0x111,
17234 + .gain_v = 0x181,
17235 + .gain_y = 0x140,
17236 + .black_level = 0x3B,
17237 + .blank_level = 0x3B,
17238 + .x_color = 0x7,
17239 + .m_control = 0x2,
17240 + .bstamp_wss_data = 0x3F,
17241 + .s_carr = 0x2A098ACB,
17242 + .line21 = 0,
17243 + .ln_sel = 0x01290015,
17244 + .l21__wc_ctl = 0x0000F603,
17245 + .htrigger_vtrigger = 0,
17246 +
17247 + .savid__eavid = 0x06A70108,
17248 + .flen__fal = 0x00180270,
17249 + .lal__phase_reset = 0x00040135,
17250 + .hs_int_start_stop_x = 0x00880358,
17251 + .hs_ext_start_stop_x = 0x000F035F,
17252 + .vs_int_start_x = 0x01A70000,
17253 + .vs_int_stop_x__vs_int_start_y = 0x000001A7,
17254 + .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
17255 + .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
17256 + .vs_ext_stop_y = 0x00000025,
17257 + .avid_start_stop_x = 0x03530083,
17258 + .avid_start_stop_y = 0x026C002E,
17259 + .fid_int_start_x__fid_int_start_y = 0x0001008A,
17260 + .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
17261 + .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
17262 +
17263 + .tvdetgp_int_start_stop_x = 0x00140001,
17264 + .tvdetgp_int_start_stop_y = 0x00010001,
17265 + .gen_ctrl = 0x00FF0000,
17266 +};
17267 +
17268 +/* from TRM */
17269 +static const struct venc_config venc_config_ntsc_trm = {
17270 + .f_control = 0,
17271 + .vidout_ctrl = 1,
17272 + .sync_ctrl = 0x8040,
17273 + .llen = 0x359,
17274 + .flens = 0x20C,
17275 + .hfltr_ctrl = 0,
17276 + .cc_carr_wss_carr = 0x043F2631,
17277 + .c_phase = 0,
17278 + .gain_u = 0x102,
17279 + .gain_v = 0x16C,
17280 + .gain_y = 0x12F,
17281 + .black_level = 0x43,
17282 + .blank_level = 0x38,
17283 + .x_color = 0x7,
17284 + .m_control = 0x1,
17285 + .bstamp_wss_data = 0x38,
17286 + .s_carr = 0x21F07C1F,
17287 + .line21 = 0,
17288 + .ln_sel = 0x01310011,
17289 + .l21__wc_ctl = 0x0000F003,
17290 + .htrigger_vtrigger = 0,
17291 +
17292 + .savid__eavid = 0x069300F4,
17293 + .flen__fal = 0x0016020C,
17294 + .lal__phase_reset = 0x00060107,
17295 + .hs_int_start_stop_x = 0x008E0350,
17296 + .hs_ext_start_stop_x = 0x000F0359,
17297 + .vs_int_start_x = 0x01A00000,
17298 + .vs_int_stop_x__vs_int_start_y = 0x020701A0,
17299 + .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
17300 + .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
17301 + .vs_ext_stop_y = 0x00000006,
17302 + .avid_start_stop_x = 0x03480078,
17303 + .avid_start_stop_y = 0x02060024,
17304 + .fid_int_start_x__fid_int_start_y = 0x0001008A,
17305 + .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
17306 + .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
17307 +
17308 + .tvdetgp_int_start_stop_x = 0x00140001,
17309 + .tvdetgp_int_start_stop_y = 0x00010001,
17310 + .gen_ctrl = 0x00F90000,
17311 +};
17312 +
17313 +static const struct venc_config venc_config_pal_bdghi = {
17314 + .f_control = 0,
17315 + .vidout_ctrl = 0,
17316 + .sync_ctrl = 0,
17317 + .hfltr_ctrl = 0,
17318 + .x_color = 0,
17319 + .line21 = 0,
17320 + .ln_sel = 21,
17321 + .htrigger_vtrigger = 0,
17322 + .tvdetgp_int_start_stop_x = 0x00140001,
17323 + .tvdetgp_int_start_stop_y = 0x00010001,
17324 + .gen_ctrl = 0x00FB0000,
17325 +
17326 + .llen = 864-1,
17327 + .flens = 625-1,
17328 + .cc_carr_wss_carr = 0x2F7625ED,
17329 + .c_phase = 0xDF,
17330 + .gain_u = 0x111,
17331 + .gain_v = 0x181,
17332 + .gain_y = 0x140,
17333 + .black_level = 0x3e,
17334 + .blank_level = 0x3e,
17335 + .m_control = 0<<2 | 1<<1,
17336 + .bstamp_wss_data = 0x42,
17337 + .s_carr = 0x2a098acb,
17338 + .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
17339 + .savid__eavid = 0x06A70108,
17340 + .flen__fal = 23<<16 | 624<<0,
17341 + .lal__phase_reset = 2<<17 | 310<<0,
17342 + .hs_int_start_stop_x = 0x00920358,
17343 + .hs_ext_start_stop_x = 0x000F035F,
17344 + .vs_int_start_x = 0x1a7<<16,
17345 + .vs_int_stop_x__vs_int_start_y = 0x000601A7,
17346 + .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
17347 + .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
17348 + .vs_ext_stop_y = 0x05,
17349 + .avid_start_stop_x = 0x03530082,
17350 + .avid_start_stop_y = 0x0270002E,
17351 + .fid_int_start_x__fid_int_start_y = 0x0005008A,
17352 + .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
17353 + .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
17354 +};
17355 +
17356 +const struct omap_video_timings omap_dss_pal_timings = {
17357 + .x_res = 720,
17358 + .y_res = 574,
17359 + .pixel_clock = 13500,
17360 + .hsw = 64,
17361 + .hfp = 12,
17362 + .hbp = 68,
17363 + .vsw = 5,
17364 + .vfp = 5,
17365 + .vbp = 41,
17366 +};
17367 +EXPORT_SYMBOL(omap_dss_pal_timings);
17368 +
17369 +const struct omap_video_timings omap_dss_ntsc_timings = {
17370 + .x_res = 720,
17371 + .y_res = 482,
17372 + .pixel_clock = 13500,
17373 + .hsw = 64,
17374 + .hfp = 16,
17375 + .hbp = 58,
17376 + .vsw = 6,
17377 + .vfp = 6,
17378 + .vbp = 31,
17379 +};
17380 +EXPORT_SYMBOL(omap_dss_ntsc_timings);
17381 +
17382 +static struct {
17383 + void __iomem *base;
17384 + struct mutex venc_lock;
17385 + u32 wss_data;
17386 + struct regulator *vdda_dac_reg;
17387 +} venc;
17388 +
17389 +static inline void venc_write_reg(int idx, u32 val)
17390 +{
17391 + __raw_writel(val, venc.base + idx);
17392 +}
17393 +
17394 +static inline u32 venc_read_reg(int idx)
17395 +{
17396 + u32 l = __raw_readl(venc.base + idx);
17397 + return l;
17398 +}
17399 +
17400 +static void venc_write_config(const struct venc_config *config)
17401 +{
17402 + DSSDBG("write venc conf\n");
17403 +
17404 + venc_write_reg(VENC_LLEN, config->llen);
17405 + venc_write_reg(VENC_FLENS, config->flens);
17406 + venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
17407 + venc_write_reg(VENC_C_PHASE, config->c_phase);
17408 + venc_write_reg(VENC_GAIN_U, config->gain_u);
17409 + venc_write_reg(VENC_GAIN_V, config->gain_v);
17410 + venc_write_reg(VENC_GAIN_Y, config->gain_y);
17411 + venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
17412 + venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
17413 + venc_write_reg(VENC_M_CONTROL, config->m_control);
17414 + venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
17415 + venc.wss_data);
17416 + venc_write_reg(VENC_S_CARR, config->s_carr);
17417 + venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
17418 + venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
17419 + venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
17420 + venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
17421 + venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
17422 + venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
17423 + venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
17424 + venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
17425 + config->vs_int_stop_x__vs_int_start_y);
17426 + venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
17427 + config->vs_int_stop_y__vs_ext_start_x);
17428 + venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
17429 + config->vs_ext_stop_x__vs_ext_start_y);
17430 + venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
17431 + venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
17432 + venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
17433 + venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
17434 + config->fid_int_start_x__fid_int_start_y);
17435 + venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
17436 + config->fid_int_offset_y__fid_ext_start_x);
17437 + venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
17438 + config->fid_ext_start_y__fid_ext_offset_y);
17439 +
17440 + venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
17441 + venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
17442 + venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
17443 + venc_write_reg(VENC_X_COLOR, config->x_color);
17444 + venc_write_reg(VENC_LINE21, config->line21);
17445 + venc_write_reg(VENC_LN_SEL, config->ln_sel);
17446 + venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
17447 + venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
17448 + config->tvdetgp_int_start_stop_x);
17449 + venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
17450 + config->tvdetgp_int_start_stop_y);
17451 + venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
17452 + venc_write_reg(VENC_F_CONTROL, config->f_control);
17453 + venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
17454 +}
17455 +
17456 +static void venc_reset(void)
17457 +{
17458 + int t = 1000;
17459 +
17460 + venc_write_reg(VENC_F_CONTROL, 1<<8);
17461 + while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
17462 + if (--t == 0) {
17463 + DSSERR("Failed to reset venc\n");
17464 + return;
17465 + }
17466 + }
17467 +
17468 + /* the magical sleep that makes things work */
17469 + msleep(20);
17470 +}
17471 +
17472 +static void venc_enable_clocks(int enable)
17473 +{
17474 + if (enable)
17475 + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
17476 + DSS_CLK_96M);
17477 + else
17478 + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
17479 + DSS_CLK_96M);
17480 +}
17481 +
17482 +static const struct venc_config *venc_timings_to_config(
17483 + struct omap_video_timings *timings)
17484 +{
17485 + if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
17486 + return &venc_config_pal_trm;
17487 +
17488 + if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
17489 + return &venc_config_ntsc_trm;
17490 +
17491 + BUG();
17492 +}
17493 +
17494 +
17495 +
17496 +
17497 +
17498 +/* driver */
17499 +static int venc_panel_probe(struct omap_dss_device *dssdev)
17500 +{
17501 + dssdev->panel.timings = omap_dss_pal_timings;
17502 +
17503 + return 0;
17504 +}
17505 +
17506 +static void venc_panel_remove(struct omap_dss_device *dssdev)
17507 +{
17508 +}
17509 +
17510 +static int venc_panel_enable(struct omap_dss_device *dssdev)
17511 +{
17512 + int r = 0;
17513 +
17514 + /* wait couple of vsyncs until enabling the LCD */
17515 + msleep(50);
17516 +
17517 + if (dssdev->platform_enable)
17518 + r = dssdev->platform_enable(dssdev);
17519 +
17520 + return r;
17521 +}
17522 +
17523 +static void venc_panel_disable(struct omap_dss_device *dssdev)
17524 +{
17525 + if (dssdev->platform_disable)
17526 + dssdev->platform_disable(dssdev);
17527 +
17528 + /* wait at least 5 vsyncs after disabling the LCD */
17529 +
17530 + msleep(100);
17531 +}
17532 +
17533 +static int venc_panel_suspend(struct omap_dss_device *dssdev)
17534 +{
17535 + venc_panel_disable(dssdev);
17536 + return 0;
17537 +}
17538 +
17539 +static int venc_panel_resume(struct omap_dss_device *dssdev)
17540 +{
17541 + return venc_panel_enable(dssdev);
17542 +}
17543 +
17544 +static struct omap_dss_driver venc_driver = {
17545 + .probe = venc_panel_probe,
17546 + .remove = venc_panel_remove,
17547 +
17548 + .enable = venc_panel_enable,
17549 + .disable = venc_panel_disable,
17550 + .suspend = venc_panel_suspend,
17551 + .resume = venc_panel_resume,
17552 +
17553 + .driver = {
17554 + .name = "venc",
17555 + .owner = THIS_MODULE,
17556 + },
17557 +};
17558 +/* driver end */
17559 +
17560 +
17561 +
17562 +int venc_init(struct platform_device *pdev)
17563 +{
17564 + u8 rev_id;
17565 +
17566 + mutex_init(&venc.venc_lock);
17567 +
17568 + venc.wss_data = 0;
17569 +
17570 + venc.base = ioremap(VENC_BASE, SZ_1K);
17571 + if (!venc.base) {
17572 + DSSERR("can't ioremap VENC\n");
17573 + return -ENOMEM;
17574 + }
17575 +
17576 + venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac");
17577 + if (IS_ERR(venc.vdda_dac_reg)) {
17578 + iounmap(venc.base);
17579 + DSSERR("can't get VDDA_DAC regulator\n");
17580 + return PTR_ERR(venc.vdda_dac_reg);
17581 + }
17582 +
17583 + venc_enable_clocks(1);
17584 +
17585 + rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
17586 + printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
17587 +
17588 + venc_enable_clocks(0);
17589 +
17590 + return omap_dss_register_driver(&venc_driver);
17591 +}
17592 +
17593 +void venc_exit(void)
17594 +{
17595 + omap_dss_unregister_driver(&venc_driver);
17596 +
17597 + regulator_put(venc.vdda_dac_reg);
17598 +
17599 + iounmap(venc.base);
17600 +}
17601 +
17602 +static void venc_power_on(struct omap_dss_device *dssdev)
17603 +{
17604 + u32 l;
17605 +
17606 + venc_enable_clocks(1);
17607 +
17608 + venc_reset();
17609 + venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
17610 +
17611 + dss_set_venc_output(dssdev->phy.venc.type);
17612 + dss_set_dac_pwrdn_bgz(1);
17613 +
17614 + l = 0;
17615 +
17616 + if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
17617 + l |= 1 << 1;
17618 + else /* S-Video */
17619 + l |= (1 << 0) | (1 << 2);
17620 +
17621 + if (dssdev->phy.venc.invert_polarity == false)
17622 + l |= 1 << 3;
17623 +
17624 + venc_write_reg(VENC_OUTPUT_CONTROL, l);
17625 +
17626 + dispc_set_digit_size(dssdev->panel.timings.x_res,
17627 + dssdev->panel.timings.y_res/2);
17628 +
17629 + regulator_enable(venc.vdda_dac_reg);
17630 +
17631 + if (dssdev->platform_enable)
17632 + dssdev->platform_enable(dssdev);
17633 +
17634 + dispc_enable_digit_out(1);
17635 +}
17636 +
17637 +static void venc_power_off(struct omap_dss_device *dssdev)
17638 +{
17639 + venc_write_reg(VENC_OUTPUT_CONTROL, 0);
17640 + dss_set_dac_pwrdn_bgz(0);
17641 +
17642 + dispc_enable_digit_out(0);
17643 +
17644 + if (dssdev->platform_disable)
17645 + dssdev->platform_disable(dssdev);
17646 +
17647 + regulator_disable(venc.vdda_dac_reg);
17648 +
17649 + venc_enable_clocks(0);
17650 +}
17651 +
17652 +static int venc_enable_display(struct omap_dss_device *dssdev)
17653 +{
17654 + int r = 0;
17655 +
17656 + DSSDBG("venc_enable_display\n");
17657 +
17658 + mutex_lock(&venc.venc_lock);
17659 +
17660 + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
17661 + r = -EINVAL;
17662 + goto err;
17663 + }
17664 +
17665 + venc_power_on(dssdev);
17666 +
17667 + venc.wss_data = 0;
17668 +
17669 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
17670 +err:
17671 + mutex_unlock(&venc.venc_lock);
17672 +
17673 + return r;
17674 +}
17675 +
17676 +static void venc_disable_display(struct omap_dss_device *dssdev)
17677 +{
17678 + DSSDBG("venc_disable_display\n");
17679 +
17680 + mutex_lock(&venc.venc_lock);
17681 +
17682 + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
17683 + goto end;
17684 +
17685 + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
17686 + /* suspended is the same as disabled with venc */
17687 + dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
17688 + goto end;
17689 + }
17690 +
17691 + venc_power_off(dssdev);
17692 +
17693 + dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
17694 +end:
17695 + mutex_unlock(&venc.venc_lock);
17696 +}
17697 +
17698 +static int venc_display_suspend(struct omap_dss_device *dssdev)
17699 +{
17700 + int r = 0;
17701 +
17702 + DSSDBG("venc_display_suspend\n");
17703 +
17704 + mutex_lock(&venc.venc_lock);
17705 +
17706 + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
17707 + r = -EINVAL;
17708 + goto err;
17709 + }
17710 +
17711 + venc_power_off(dssdev);
17712 +
17713 + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
17714 +err:
17715 + mutex_unlock(&venc.venc_lock);
17716 +
17717 + return r;
17718 +}
17719 +
17720 +static int venc_display_resume(struct omap_dss_device *dssdev)
17721 +{
17722 + int r = 0;
17723 +
17724 + DSSDBG("venc_display_resume\n");
17725 +
17726 + mutex_lock(&venc.venc_lock);
17727 +
17728 + if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
17729 + r = -EINVAL;
17730 + goto err;
17731 + }
17732 +
17733 + venc_power_on(dssdev);
17734 +
17735 + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
17736 +err:
17737 + mutex_unlock(&venc.venc_lock);
17738 +
17739 + return r;
17740 +}
17741 +
17742 +static void venc_get_timings(struct omap_dss_device *dssdev,
17743 + struct omap_video_timings *timings)
17744 +{
17745 + *timings = dssdev->panel.timings;
17746 +}
17747 +
17748 +static void venc_set_timings(struct omap_dss_device *dssdev,
17749 + struct omap_video_timings *timings)
17750 +{
17751 + DSSDBG("venc_set_timings\n");
17752 +
17753 + /* Reset WSS data when the TV standard changes. */
17754 + if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings)))
17755 + venc.wss_data = 0;
17756 +
17757 + dssdev->panel.timings = *timings;
17758 + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
17759 + /* turn the venc off and on to get new timings to use */
17760 + venc_disable_display(dssdev);
17761 + venc_enable_display(dssdev);
17762 + }
17763 +}
17764 +
17765 +static int venc_check_timings(struct omap_dss_device *dssdev,
17766 + struct omap_video_timings *timings)
17767 +{
17768 + DSSDBG("venc_check_timings\n");
17769 +
17770 + if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
17771 + return 0;
17772 +
17773 + if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
17774 + return 0;
17775 +
17776 + return -EINVAL;
17777 +}
17778 +
17779 +static u32 venc_get_wss(struct omap_dss_device *dssdev)
17780 +{
17781 + /* Invert due to VENC_L21_WC_CTL:INV=1 */
17782 + return (venc.wss_data >> 8) ^ 0xfffff;
17783 +}
17784 +
17785 +static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
17786 +{
17787 + const struct venc_config *config;
17788 +
17789 + DSSDBG("venc_set_wss\n");
17790 +
17791 + mutex_lock(&venc.venc_lock);
17792 +
17793 + config = venc_timings_to_config(&dssdev->panel.timings);
17794 +
17795 + /* Invert due to VENC_L21_WC_CTL:INV=1 */
17796 + venc.wss_data = (wss ^ 0xfffff) << 8;
17797 +
17798 + venc_enable_clocks(1);
17799 +
17800 + venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
17801 + venc.wss_data);
17802 +
17803 + venc_enable_clocks(0);
17804 +
17805 + mutex_unlock(&venc.venc_lock);
17806 +
17807 + return 0;
17808 +}
17809 +
17810 +static enum omap_dss_update_mode venc_display_get_update_mode(
17811 + struct omap_dss_device *dssdev)
17812 +{
17813 + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
17814 + return OMAP_DSS_UPDATE_AUTO;
17815 + else
17816 + return OMAP_DSS_UPDATE_DISABLED;
17817 +}
17818 +
17819 +int venc_init_display(struct omap_dss_device *dssdev)
17820 +{
17821 + DSSDBG("init_display\n");
17822 +
17823 + dssdev->enable = venc_enable_display;
17824 + dssdev->disable = venc_disable_display;
17825 + dssdev->suspend = venc_display_suspend;
17826 + dssdev->resume = venc_display_resume;
17827 + dssdev->get_timings = venc_get_timings;
17828 + dssdev->set_timings = venc_set_timings;
17829 + dssdev->check_timings = venc_check_timings;
17830 + dssdev->get_wss = venc_get_wss;
17831 + dssdev->set_wss = venc_set_wss;
17832 + dssdev->get_update_mode = venc_display_get_update_mode;
17833 +
17834 + return 0;
17835 +}
17836 +
17837 +void venc_dump_regs(struct seq_file *s)
17838 +{
17839 +#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
17840 +
17841 + venc_enable_clocks(1);
17842 +
17843 + DUMPREG(VENC_F_CONTROL);
17844 + DUMPREG(VENC_VIDOUT_CTRL);
17845 + DUMPREG(VENC_SYNC_CTRL);
17846 + DUMPREG(VENC_LLEN);
17847 + DUMPREG(VENC_FLENS);
17848 + DUMPREG(VENC_HFLTR_CTRL);
17849 + DUMPREG(VENC_CC_CARR_WSS_CARR);
17850 + DUMPREG(VENC_C_PHASE);
17851 + DUMPREG(VENC_GAIN_U);
17852 + DUMPREG(VENC_GAIN_V);
17853 + DUMPREG(VENC_GAIN_Y);
17854 + DUMPREG(VENC_BLACK_LEVEL);
17855 + DUMPREG(VENC_BLANK_LEVEL);
17856 + DUMPREG(VENC_X_COLOR);
17857 + DUMPREG(VENC_M_CONTROL);
17858 + DUMPREG(VENC_BSTAMP_WSS_DATA);
17859 + DUMPREG(VENC_S_CARR);
17860 + DUMPREG(VENC_LINE21);
17861 + DUMPREG(VENC_LN_SEL);
17862 + DUMPREG(VENC_L21__WC_CTL);
17863 + DUMPREG(VENC_HTRIGGER_VTRIGGER);
17864 + DUMPREG(VENC_SAVID__EAVID);
17865 + DUMPREG(VENC_FLEN__FAL);
17866 + DUMPREG(VENC_LAL__PHASE_RESET);
17867 + DUMPREG(VENC_HS_INT_START_STOP_X);
17868 + DUMPREG(VENC_HS_EXT_START_STOP_X);
17869 + DUMPREG(VENC_VS_INT_START_X);
17870 + DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y);
17871 + DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X);
17872 + DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y);
17873 + DUMPREG(VENC_VS_EXT_STOP_Y);
17874 + DUMPREG(VENC_AVID_START_STOP_X);
17875 + DUMPREG(VENC_AVID_START_STOP_Y);
17876 + DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y);
17877 + DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X);
17878 + DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y);
17879 + DUMPREG(VENC_TVDETGP_INT_START_STOP_X);
17880 + DUMPREG(VENC_TVDETGP_INT_START_STOP_Y);
17881 + DUMPREG(VENC_GEN_CTRL);
17882 + DUMPREG(VENC_OUTPUT_CONTROL);
17883 + DUMPREG(VENC_OUTPUT_TEST);
17884 +
17885 + venc_enable_clocks(0);
17886 +
17887 +#undef DUMPREG
17888 +}
17889 --- /dev/null
17890 +++ b/drivers/video/omap2/omapfb/Kconfig
17891 @@ -0,0 +1,37 @@
17892 +menuconfig FB_OMAP2
17893 + tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)"
17894 + depends on FB && OMAP2_DSS
17895 +
17896 + select OMAP2_VRAM
17897 + select OMAP2_VRFB
17898 + select FB_CFB_FILLRECT
17899 + select FB_CFB_COPYAREA
17900 + select FB_CFB_IMAGEBLIT
17901 + help
17902 + Frame buffer driver for OMAP2/3 based boards.
17903 +
17904 +config FB_OMAP2_DEBUG_SUPPORT
17905 + bool "Debug support for OMAP2/3 FB"
17906 + default y
17907 + depends on FB_OMAP2
17908 + help
17909 + Support for debug output. You have to enable the actual printing
17910 + with debug module parameter.
17911 +
17912 +config FB_OMAP2_FORCE_AUTO_UPDATE
17913 + bool "Force main display to automatic update mode"
17914 + depends on FB_OMAP2
17915 + help
17916 + Forces main display to automatic update mode (if possible),
17917 + and also enables tearsync (if possible). By default
17918 + displays that support manual update are started in manual
17919 + update mode.
17920 +
17921 +config FB_OMAP2_NUM_FBS
17922 + int "Number of framebuffers"
17923 + range 1 10
17924 + default 3
17925 + depends on FB_OMAP2
17926 + help
17927 + Select the number of framebuffers created. OMAP2/3 has 3 overlays
17928 + so normally this would be 3.
17929 --- /dev/null
17930 +++ b/drivers/video/omap2/omapfb/Makefile
17931 @@ -0,0 +1,2 @@
17932 +obj-$(CONFIG_FB_OMAP2) += omapfb.o
17933 +omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o
17934 --- /dev/null
17935 +++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
17936 @@ -0,0 +1,727 @@
17937 +/*
17938 + * linux/drivers/video/omap2/omapfb-ioctl.c
17939 + *
17940 + * Copyright (C) 2008 Nokia Corporation
17941 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
17942 + *
17943 + * Some code and ideas taken from drivers/video/omap/ driver
17944 + * by Imre Deak.
17945 + *
17946 + * This program is free software; you can redistribute it and/or modify it
17947 + * under the terms of the GNU General Public License version 2 as published by
17948 + * the Free Software Foundation.
17949 + *
17950 + * This program is distributed in the hope that it will be useful, but WITHOUT
17951 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17952 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17953 + * more details.
17954 + *
17955 + * You should have received a copy of the GNU General Public License along with
17956 + * this program. If not, see <http://www.gnu.org/licenses/>.
17957 + */
17958 +
17959 +#include <linux/fb.h>
17960 +#include <linux/device.h>
17961 +#include <linux/uaccess.h>
17962 +#include <linux/platform_device.h>
17963 +#include <linux/mm.h>
17964 +#include <linux/omapfb.h>
17965 +#include <linux/vmalloc.h>
17966 +
17967 +#include <mach/display.h>
17968 +#include <mach/vrfb.h>
17969 +#include <mach/vram.h>
17970 +
17971 +#include "omapfb.h"
17972 +
17973 +static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
17974 +{
17975 + struct omapfb_info *ofbi = FB2OFB(fbi);
17976 + struct omapfb2_device *fbdev = ofbi->fbdev;
17977 + struct omap_dss_device *display = fb2display(fbi);
17978 + struct omap_overlay *ovl;
17979 + struct omap_overlay_info info;
17980 + int r = 0;
17981 +
17982 + DBG("omapfb_setup_plane\n");
17983 +
17984 + if (ofbi->num_overlays != 1) {
17985 + r = -EINVAL;
17986 + goto out;
17987 + }
17988 +
17989 + /* XXX uses only the first overlay */
17990 + ovl = ofbi->overlays[0];
17991 +
17992 + if (pi->enabled && !ofbi->region.size) {
17993 + /*
17994 + * This plane's memory was freed, can't enable it
17995 + * until it's reallocated.
17996 + */
17997 + r = -EINVAL;
17998 + goto out;
17999 + }
18000 +
18001 + ovl->get_overlay_info(ovl, &info);
18002 +
18003 + info.pos_x = pi->pos_x;
18004 + info.pos_y = pi->pos_y;
18005 + info.out_width = pi->out_width;
18006 + info.out_height = pi->out_height;
18007 + info.enabled = pi->enabled;
18008 +
18009 + r = ovl->set_overlay_info(ovl, &info);
18010 + if (r)
18011 + goto out;
18012 +
18013 + if (ovl->manager) {
18014 + r = ovl->manager->apply(ovl->manager);
18015 + if (r)
18016 + goto out;
18017 + }
18018 +
18019 + if (display) {
18020 + u16 w, h;
18021 +
18022 + if (display->sync)
18023 + display->sync(display);
18024 +
18025 + display->get_resolution(display, &w, &h);
18026 +
18027 + if (display->update)
18028 + display->update(display, 0, 0, w, h);
18029 + }
18030 +
18031 +out:
18032 + if (r)
18033 + dev_err(fbdev->dev, "setup_plane failed\n");
18034 + return r;
18035 +}
18036 +
18037 +static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
18038 +{
18039 + struct omapfb_info *ofbi = FB2OFB(fbi);
18040 +
18041 + if (ofbi->num_overlays != 1) {
18042 + memset(pi, 0, sizeof(*pi));
18043 + } else {
18044 + struct omap_overlay_info *ovli;
18045 + struct omap_overlay *ovl;
18046 +
18047 + ovl = ofbi->overlays[0];
18048 + ovli = &ovl->info;
18049 +
18050 + pi->pos_x = ovli->pos_x;
18051 + pi->pos_y = ovli->pos_y;
18052 + pi->enabled = ovli->enabled;
18053 + pi->channel_out = 0; /* xxx */
18054 + pi->mirror = 0;
18055 + pi->out_width = ovli->out_width;
18056 + pi->out_height = ovli->out_height;
18057 + }
18058 +
18059 + return 0;
18060 +}
18061 +
18062 +static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
18063 +{
18064 + struct omapfb_info *ofbi = FB2OFB(fbi);
18065 + struct omapfb2_device *fbdev = ofbi->fbdev;
18066 + struct omapfb2_mem_region *rg;
18067 + int r, i;
18068 + size_t size;
18069 +
18070 + if (mi->type > OMAPFB_MEMTYPE_MAX)
18071 + return -EINVAL;
18072 +
18073 + size = PAGE_ALIGN(mi->size);
18074 +
18075 + rg = &ofbi->region;
18076 +
18077 + for (i = 0; i < ofbi->num_overlays; i++) {
18078 + if (ofbi->overlays[i]->info.enabled)
18079 + return -EBUSY;
18080 + }
18081 +
18082 + if (rg->size != size || rg->type != mi->type) {
18083 + r = omapfb_realloc_fbmem(fbi, size, mi->type);
18084 + if (r) {
18085 + dev_err(fbdev->dev, "realloc fbmem failed\n");
18086 + return r;
18087 + }
18088 + }
18089 +
18090 + return 0;
18091 +}
18092 +
18093 +static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
18094 +{
18095 + struct omapfb_info *ofbi = FB2OFB(fbi);
18096 + struct omapfb2_mem_region *rg;
18097 +
18098 + rg = &ofbi->region;
18099 + memset(mi, 0, sizeof(*mi));
18100 +
18101 + mi->size = rg->size;
18102 + mi->type = rg->type;
18103 +
18104 + return 0;
18105 +}
18106 +
18107 +static int omapfb_update_window(struct fb_info *fbi,
18108 + u32 x, u32 y, u32 w, u32 h)
18109 +{
18110 + struct omap_dss_device *display = fb2display(fbi);
18111 + u16 dw, dh;
18112 +
18113 + if (!display)
18114 + return 0;
18115 +
18116 + if (w == 0 || h == 0)
18117 + return 0;
18118 +
18119 + display->get_resolution(display, &dw, &dh);
18120 +
18121 + if (x + w > dw || y + h > dh)
18122 + return -EINVAL;
18123 +
18124 + display->update(display, x, y, w, h);
18125 +
18126 + return 0;
18127 +}
18128 +
18129 +static int omapfb_set_update_mode(struct fb_info *fbi,
18130 + enum omapfb_update_mode mode)
18131 +{
18132 + struct omap_dss_device *display = fb2display(fbi);
18133 + enum omap_dss_update_mode um;
18134 + int r;
18135 +
18136 + if (!display || !display->set_update_mode)
18137 + return -EINVAL;
18138 +
18139 + switch (mode) {
18140 + case OMAPFB_UPDATE_DISABLED:
18141 + um = OMAP_DSS_UPDATE_DISABLED;
18142 + break;
18143 +
18144 + case OMAPFB_AUTO_UPDATE:
18145 + um = OMAP_DSS_UPDATE_AUTO;
18146 + break;
18147 +
18148 + case OMAPFB_MANUAL_UPDATE:
18149 + um = OMAP_DSS_UPDATE_MANUAL;
18150 + break;
18151 +
18152 + default:
18153 + return -EINVAL;
18154 + }
18155 +
18156 + r = display->set_update_mode(display, um);
18157 +
18158 + return r;
18159 +}
18160 +
18161 +static int omapfb_get_update_mode(struct fb_info *fbi,
18162 + enum omapfb_update_mode *mode)
18163 +{
18164 + struct omap_dss_device *display = fb2display(fbi);
18165 + enum omap_dss_update_mode m;
18166 +
18167 + if (!display || !display->get_update_mode)
18168 + return -EINVAL;
18169 +
18170 + m = display->get_update_mode(display);
18171 +
18172 + switch (m) {
18173 + case OMAP_DSS_UPDATE_DISABLED:
18174 + *mode = OMAPFB_UPDATE_DISABLED;
18175 + break;
18176 + case OMAP_DSS_UPDATE_AUTO:
18177 + *mode = OMAPFB_AUTO_UPDATE;
18178 + break;
18179 + case OMAP_DSS_UPDATE_MANUAL:
18180 + *mode = OMAPFB_MANUAL_UPDATE;
18181 + break;
18182 + default:
18183 + BUG();
18184 + }
18185 +
18186 + return 0;
18187 +}
18188 +
18189 +/* XXX this color key handling is a hack... */
18190 +static struct omapfb_color_key omapfb_color_keys[2];
18191 +
18192 +static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
18193 + struct omapfb_color_key *ck)
18194 +{
18195 + struct omap_overlay_manager_info info;
18196 + enum omap_dss_trans_key_type kt;
18197 + int r;
18198 +
18199 + mgr->get_manager_info(mgr, &info);
18200 +
18201 + if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
18202 + info.trans_enabled = false;
18203 + omapfb_color_keys[mgr->id] = *ck;
18204 +
18205 + r = mgr->set_manager_info(mgr, &info);
18206 + if (r)
18207 + return r;
18208 +
18209 + r = mgr->apply(mgr);
18210 +
18211 + return r;
18212 + }
18213 +
18214 + switch (ck->key_type) {
18215 + case OMAPFB_COLOR_KEY_GFX_DST:
18216 + kt = OMAP_DSS_COLOR_KEY_GFX_DST;
18217 + break;
18218 + case OMAPFB_COLOR_KEY_VID_SRC:
18219 + kt = OMAP_DSS_COLOR_KEY_VID_SRC;
18220 + break;
18221 + default:
18222 + return -EINVAL;
18223 + }
18224 +
18225 + info.default_color = ck->background;
18226 + info.trans_key = ck->trans_key;
18227 + info.trans_key_type = kt;
18228 + info.trans_enabled = true;
18229 +
18230 + omapfb_color_keys[mgr->id] = *ck;
18231 +
18232 + r = mgr->set_manager_info(mgr, &info);
18233 + if (r)
18234 + return r;
18235 +
18236 + r = mgr->apply(mgr);
18237 +
18238 + return r;
18239 +}
18240 +
18241 +static int omapfb_set_color_key(struct fb_info *fbi,
18242 + struct omapfb_color_key *ck)
18243 +{
18244 + struct omapfb_info *ofbi = FB2OFB(fbi);
18245 + struct omapfb2_device *fbdev = ofbi->fbdev;
18246 + int r;
18247 + int i;
18248 + struct omap_overlay_manager *mgr = NULL;
18249 +
18250 + omapfb_lock(fbdev);
18251 +
18252 + for (i = 0; i < ofbi->num_overlays; i++) {
18253 + if (ofbi->overlays[i]->manager) {
18254 + mgr = ofbi->overlays[i]->manager;
18255 + break;
18256 + }
18257 + }
18258 +
18259 + if (!mgr) {
18260 + r = -EINVAL;
18261 + goto err;
18262 + }
18263 +
18264 + r = _omapfb_set_color_key(mgr, ck);
18265 +err:
18266 + omapfb_unlock(fbdev);
18267 +
18268 + return r;
18269 +}
18270 +
18271 +static int omapfb_get_color_key(struct fb_info *fbi,
18272 + struct omapfb_color_key *ck)
18273 +{
18274 + struct omapfb_info *ofbi = FB2OFB(fbi);
18275 + struct omapfb2_device *fbdev = ofbi->fbdev;
18276 + struct omap_overlay_manager *mgr = NULL;
18277 + int r = 0;
18278 + int i;
18279 +
18280 + omapfb_lock(fbdev);
18281 +
18282 + for (i = 0; i < ofbi->num_overlays; i++) {
18283 + if (ofbi->overlays[i]->manager) {
18284 + mgr = ofbi->overlays[i]->manager;
18285 + break;
18286 + }
18287 + }
18288 +
18289 + if (!mgr) {
18290 + r = -EINVAL;
18291 + goto err;
18292 + }
18293 +
18294 + *ck = omapfb_color_keys[mgr->id];
18295 +err:
18296 + omapfb_unlock(fbdev);
18297 +
18298 + return r;
18299 +}
18300 +
18301 +static int omapfb_memory_read(struct fb_info *fbi,
18302 + struct omapfb_memory_read *mr)
18303 +{
18304 + struct omap_dss_device *display = fb2display(fbi);
18305 + void *buf;
18306 + int r;
18307 +
18308 + if (!display || !display->memory_read)
18309 + return -ENOENT;
18310 +
18311 + if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
18312 + return -EFAULT;
18313 +
18314 + if (mr->w * mr->h * 3 > mr->buffer_size)
18315 + return -EINVAL;
18316 +
18317 + buf = vmalloc(mr->buffer_size);
18318 + if (!buf) {
18319 + DBG("vmalloc failed\n");
18320 + return -ENOMEM;
18321 + }
18322 +
18323 + r = display->memory_read(display, buf, mr->buffer_size,
18324 + mr->x, mr->y, mr->w, mr->h);
18325 +
18326 + if (r > 0) {
18327 + if (copy_to_user(mr->buffer, buf, mr->buffer_size))
18328 + r = -EFAULT;
18329 + }
18330 +
18331 + vfree(buf);
18332 +
18333 + return r;
18334 +}
18335 +
18336 +static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
18337 + struct omapfb_ovl_colormode *mode)
18338 +{
18339 + int ovl_idx = mode->overlay_idx;
18340 + int mode_idx = mode->mode_idx;
18341 + struct omap_overlay *ovl;
18342 + enum omap_color_mode supported_modes;
18343 + struct fb_var_screeninfo var;
18344 + int i;
18345 +
18346 + if (ovl_idx >= fbdev->num_overlays)
18347 + return -ENODEV;
18348 + ovl = fbdev->overlays[ovl_idx];
18349 + supported_modes = ovl->supported_modes;
18350 +
18351 + mode_idx = mode->mode_idx;
18352 +
18353 + for (i = 0; i < sizeof(supported_modes) * 8; i++) {
18354 + if (!(supported_modes & (1 << i)))
18355 + continue;
18356 + /*
18357 + * It's possible that the FB doesn't support a mode
18358 + * that is supported by the overlay, so call the
18359 + * following here.
18360 + */
18361 + if (dss_mode_to_fb_mode(1 << i, &var) < 0)
18362 + continue;
18363 +
18364 + mode_idx--;
18365 + if (mode_idx < 0)
18366 + break;
18367 + }
18368 +
18369 + if (i == sizeof(supported_modes) * 8)
18370 + return -ENOENT;
18371 +
18372 + mode->bits_per_pixel = var.bits_per_pixel;
18373 + mode->nonstd = var.nonstd;
18374 + mode->red = var.red;
18375 + mode->green = var.green;
18376 + mode->blue = var.blue;
18377 + mode->transp = var.transp;
18378 +
18379 + return 0;
18380 +}
18381 +
18382 +static int omapfb_wait_for_go(struct fb_info *fbi)
18383 +{
18384 + struct omapfb_info *ofbi = FB2OFB(fbi);
18385 + int r = 0;
18386 + int i;
18387 +
18388 + for (i = 0; i < ofbi->num_overlays; ++i) {
18389 + struct omap_overlay *ovl = ofbi->overlays[i];
18390 + r = ovl->wait_for_go(ovl);
18391 + if (r)
18392 + break;
18393 + }
18394 +
18395 + return r;
18396 +}
18397 +
18398 +int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
18399 +{
18400 + struct omapfb_info *ofbi = FB2OFB(fbi);
18401 + struct omapfb2_device *fbdev = ofbi->fbdev;
18402 + struct omap_dss_device *display = fb2display(fbi);
18403 +
18404 + union {
18405 + struct omapfb_update_window_old uwnd_o;
18406 + struct omapfb_update_window uwnd;
18407 + struct omapfb_plane_info plane_info;
18408 + struct omapfb_caps caps;
18409 + struct omapfb_mem_info mem_info;
18410 + struct omapfb_color_key color_key;
18411 + struct omapfb_ovl_colormode ovl_colormode;
18412 + enum omapfb_update_mode update_mode;
18413 + int test_num;
18414 + struct omapfb_memory_read memory_read;
18415 + struct omapfb_vram_info vram_info;
18416 + } p;
18417 +
18418 + int r = 0;
18419 +
18420 + switch (cmd) {
18421 + case OMAPFB_SYNC_GFX:
18422 + DBG("ioctl SYNC_GFX\n");
18423 + if (!display || !display->sync) {
18424 + /* DSS1 never returns an error here, so we neither */
18425 + /*r = -EINVAL;*/
18426 + break;
18427 + }
18428 +
18429 + r = display->sync(display);
18430 + break;
18431 +
18432 + case OMAPFB_UPDATE_WINDOW_OLD:
18433 + DBG("ioctl UPDATE_WINDOW_OLD\n");
18434 + if (!display || !display->update) {
18435 + r = -EINVAL;
18436 + break;
18437 + }
18438 +
18439 + if (copy_from_user(&p.uwnd_o,
18440 + (void __user *)arg,
18441 + sizeof(p.uwnd_o))) {
18442 + r = -EFAULT;
18443 + break;
18444 + }
18445 +
18446 + r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
18447 + p.uwnd_o.width, p.uwnd_o.height);
18448 + break;
18449 +
18450 + case OMAPFB_UPDATE_WINDOW:
18451 + DBG("ioctl UPDATE_WINDOW\n");
18452 + if (!display || !display->update) {
18453 + r = -EINVAL;
18454 + break;
18455 + }
18456 +
18457 + if (copy_from_user(&p.uwnd, (void __user *)arg,
18458 + sizeof(p.uwnd))) {
18459 + r = -EFAULT;
18460 + break;
18461 + }
18462 +
18463 + r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
18464 + p.uwnd.width, p.uwnd.height);
18465 + break;
18466 +
18467 + case OMAPFB_SETUP_PLANE:
18468 + DBG("ioctl SETUP_PLANE\n");
18469 + if (copy_from_user(&p.plane_info, (void __user *)arg,
18470 + sizeof(p.plane_info)))
18471 + r = -EFAULT;
18472 + else
18473 + r = omapfb_setup_plane(fbi, &p.plane_info);
18474 + break;
18475 +
18476 + case OMAPFB_QUERY_PLANE:
18477 + DBG("ioctl QUERY_PLANE\n");
18478 + r = omapfb_query_plane(fbi, &p.plane_info);
18479 + if (r < 0)
18480 + break;
18481 + if (copy_to_user((void __user *)arg, &p.plane_info,
18482 + sizeof(p.plane_info)))
18483 + r = -EFAULT;
18484 + break;
18485 +
18486 + case OMAPFB_SETUP_MEM:
18487 + DBG("ioctl SETUP_MEM\n");
18488 + if (copy_from_user(&p.mem_info, (void __user *)arg,
18489 + sizeof(p.mem_info)))
18490 + r = -EFAULT;
18491 + else
18492 + r = omapfb_setup_mem(fbi, &p.mem_info);
18493 + break;
18494 +
18495 + case OMAPFB_QUERY_MEM:
18496 + DBG("ioctl QUERY_MEM\n");
18497 + r = omapfb_query_mem(fbi, &p.mem_info);
18498 + if (r < 0)
18499 + break;
18500 + if (copy_to_user((void __user *)arg, &p.mem_info,
18501 + sizeof(p.mem_info)))
18502 + r = -EFAULT;
18503 + break;
18504 +
18505 + case OMAPFB_GET_CAPS:
18506 + DBG("ioctl GET_CAPS\n");
18507 + if (!display) {
18508 + r = -EINVAL;
18509 + break;
18510 + }
18511 +
18512 + memset(&p.caps, 0, sizeof(p.caps));
18513 + p.caps.ctrl = display->caps;
18514 +
18515 + if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
18516 + r = -EFAULT;
18517 + break;
18518 +
18519 + case OMAPFB_GET_OVERLAY_COLORMODE:
18520 + DBG("ioctl GET_OVERLAY_COLORMODE\n");
18521 + if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
18522 + sizeof(p.ovl_colormode))) {
18523 + r = -EFAULT;
18524 + break;
18525 + }
18526 + r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
18527 + if (r < 0)
18528 + break;
18529 + if (copy_to_user((void __user *)arg, &p.ovl_colormode,
18530 + sizeof(p.ovl_colormode)))
18531 + r = -EFAULT;
18532 + break;
18533 +
18534 + case OMAPFB_SET_UPDATE_MODE:
18535 + DBG("ioctl SET_UPDATE_MODE\n");
18536 + if (get_user(p.update_mode, (int __user *)arg))
18537 + r = -EFAULT;
18538 + else
18539 + r = omapfb_set_update_mode(fbi, p.update_mode);
18540 + break;
18541 +
18542 + case OMAPFB_GET_UPDATE_MODE:
18543 + DBG("ioctl GET_UPDATE_MODE\n");
18544 + r = omapfb_get_update_mode(fbi, &p.update_mode);
18545 + if (r)
18546 + break;
18547 + if (put_user(p.update_mode,
18548 + (enum omapfb_update_mode __user *)arg))
18549 + r = -EFAULT;
18550 + break;
18551 +
18552 + case OMAPFB_SET_COLOR_KEY:
18553 + DBG("ioctl SET_COLOR_KEY\n");
18554 + if (copy_from_user(&p.color_key, (void __user *)arg,
18555 + sizeof(p.color_key)))
18556 + r = -EFAULT;
18557 + else
18558 + r = omapfb_set_color_key(fbi, &p.color_key);
18559 + break;
18560 +
18561 + case OMAPFB_GET_COLOR_KEY:
18562 + DBG("ioctl GET_COLOR_KEY\n");
18563 + r = omapfb_get_color_key(fbi, &p.color_key);
18564 + if (r)
18565 + break;
18566 + if (copy_to_user((void __user *)arg, &p.color_key,
18567 + sizeof(p.color_key)))
18568 + r = -EFAULT;
18569 + break;
18570 +
18571 + case OMAPFB_WAITFORVSYNC:
18572 + DBG("ioctl WAITFORVSYNC\n");
18573 + if (!display) {
18574 + r = -EINVAL;
18575 + break;
18576 + }
18577 +
18578 + r = display->wait_vsync(display);
18579 + break;
18580 +
18581 + case OMAPFB_WAITFORGO:
18582 + DBG("ioctl WAITFORGO\n");
18583 + if (!display) {
18584 + r = -EINVAL;
18585 + break;
18586 + }
18587 +
18588 + r = omapfb_wait_for_go(fbi);
18589 + break;
18590 +
18591 + /* LCD and CTRL tests do the same thing for backward
18592 + * compatibility */
18593 + case OMAPFB_LCD_TEST:
18594 + DBG("ioctl LCD_TEST\n");
18595 + if (get_user(p.test_num, (int __user *)arg)) {
18596 + r = -EFAULT;
18597 + break;
18598 + }
18599 + if (!display || !display->run_test) {
18600 + r = -EINVAL;
18601 + break;
18602 + }
18603 +
18604 + r = display->run_test(display, p.test_num);
18605 +
18606 + break;
18607 +
18608 + case OMAPFB_CTRL_TEST:
18609 + DBG("ioctl CTRL_TEST\n");
18610 + if (get_user(p.test_num, (int __user *)arg)) {
18611 + r = -EFAULT;
18612 + break;
18613 + }
18614 + if (!display || !display->run_test) {
18615 + r = -EINVAL;
18616 + break;
18617 + }
18618 +
18619 + r = display->run_test(display, p.test_num);
18620 +
18621 + break;
18622 +
18623 + case OMAPFB_MEMORY_READ:
18624 + DBG("ioctl MEMORY_READ\n");
18625 +
18626 + if (copy_from_user(&p.memory_read, (void __user *)arg,
18627 + sizeof(p.memory_read))) {
18628 + r = -EFAULT;
18629 + break;
18630 + }
18631 +
18632 + r = omapfb_memory_read(fbi, &p.memory_read);
18633 +
18634 + break;
18635 +
18636 + case OMAPFB_GET_VRAM_INFO: {
18637 + unsigned long vram, free, largest;
18638 +
18639 + DBG("ioctl GET_VRAM_INFO\n");
18640 +
18641 + omap_vram_get_info(&vram, &free, &largest);
18642 + p.vram_info.total = vram;
18643 + p.vram_info.free = free;
18644 + p.vram_info.largest_free_block = largest;
18645 +
18646 + if (copy_to_user((void __user *)arg, &p.vram_info,
18647 + sizeof(p.vram_info)))
18648 + r = -EFAULT;
18649 + break;
18650 + }
18651 +
18652 + default:
18653 + dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
18654 + r = -EINVAL;
18655 + }
18656 +
18657 + if (r < 0)
18658 + DBG("ioctl failed: %d\n", r);
18659 +
18660 + return r;
18661 +}
18662 +
18663 +
18664 --- /dev/null
18665 +++ b/drivers/video/omap2/omapfb/omapfb-main.c
18666 @@ -0,0 +1,2137 @@
18667 +/*
18668 + * linux/drivers/video/omap2/omapfb-main.c
18669 + *
18670 + * Copyright (C) 2008 Nokia Corporation
18671 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
18672 + *
18673 + * Some code and ideas taken from drivers/video/omap/ driver
18674 + * by Imre Deak.
18675 + *
18676 + * This program is free software; you can redistribute it and/or modify it
18677 + * under the terms of the GNU General Public License version 2 as published by
18678 + * the Free Software Foundation.
18679 + *
18680 + * This program is distributed in the hope that it will be useful, but WITHOUT
18681 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18682 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18683 + * more details.
18684 + *
18685 + * You should have received a copy of the GNU General Public License along with
18686 + * this program. If not, see <http://www.gnu.org/licenses/>.
18687 + */
18688 +
18689 +#include <linux/module.h>
18690 +#include <linux/delay.h>
18691 +#include <linux/fb.h>
18692 +#include <linux/dma-mapping.h>
18693 +#include <linux/vmalloc.h>
18694 +#include <linux/device.h>
18695 +#include <linux/platform_device.h>
18696 +#include <linux/omapfb.h>
18697 +
18698 +#include <mach/display.h>
18699 +#include <mach/vram.h>
18700 +#include <mach/vrfb.h>
18701 +
18702 +#include "omapfb.h"
18703 +
18704 +#define MODULE_NAME "omapfb"
18705 +
18706 +#define OMAPFB_PLANE_XRES_MIN 8
18707 +#define OMAPFB_PLANE_YRES_MIN 8
18708 +
18709 +static char *def_mode;
18710 +static char *def_vram;
18711 +static int def_vrfb;
18712 +static int def_rotate;
18713 +static int def_mirror;
18714 +
18715 +#ifdef DEBUG
18716 +unsigned int omapfb_debug;
18717 +module_param_named(debug, omapfb_debug, bool, 0644);
18718 +static unsigned int omapfb_test_pattern;
18719 +module_param_named(test, omapfb_test_pattern, bool, 0644);
18720 +#endif
18721 +
18722 +static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
18723 +
18724 +#ifdef DEBUG
18725 +static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
18726 +{
18727 + struct fb_var_screeninfo *var = &fbi->var;
18728 + struct fb_fix_screeninfo *fix = &fbi->fix;
18729 + void __iomem *addr = fbi->screen_base;
18730 + const unsigned bytespp = var->bits_per_pixel >> 3;
18731 + const unsigned line_len = fix->line_length / bytespp;
18732 +
18733 + int r = (color >> 16) & 0xff;
18734 + int g = (color >> 8) & 0xff;
18735 + int b = (color >> 0) & 0xff;
18736 +
18737 + if (var->bits_per_pixel == 16) {
18738 + u16 __iomem *p = (u16 __iomem *)addr;
18739 + p += y * line_len + x;
18740 +
18741 + r = r * 32 / 256;
18742 + g = g * 64 / 256;
18743 + b = b * 32 / 256;
18744 +
18745 + __raw_writew((r << 11) | (g << 5) | (b << 0), p);
18746 + } else if (var->bits_per_pixel == 24) {
18747 + u8 __iomem *p = (u8 __iomem *)addr;
18748 + p += (y * line_len + x) * 3;
18749 +
18750 + __raw_writeb(b, p + 0);
18751 + __raw_writeb(g, p + 1);
18752 + __raw_writeb(r, p + 2);
18753 + } else if (var->bits_per_pixel == 32) {
18754 + u32 __iomem *p = (u32 __iomem *)addr;
18755 + p += y * line_len + x;
18756 + __raw_writel(color, p);
18757 + }
18758 +}
18759 +
18760 +static void fill_fb(struct fb_info *fbi)
18761 +{
18762 + struct fb_var_screeninfo *var = &fbi->var;
18763 + const short w = var->xres_virtual;
18764 + const short h = var->yres_virtual;
18765 + void __iomem *addr = fbi->screen_base;
18766 + int y, x;
18767 +
18768 + if (!addr)
18769 + return;
18770 +
18771 + DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
18772 +
18773 + for (y = 0; y < h; y++) {
18774 + for (x = 0; x < w; x++) {
18775 + if (x < 20 && y < 20)
18776 + draw_pixel(fbi, x, y, 0xffffff);
18777 + else if (x < 20 && (y > 20 && y < h - 20))
18778 + draw_pixel(fbi, x, y, 0xff);
18779 + else if (y < 20 && (x > 20 && x < w - 20))
18780 + draw_pixel(fbi, x, y, 0xff00);
18781 + else if (x > w - 20 && (y > 20 && y < h - 20))
18782 + draw_pixel(fbi, x, y, 0xff0000);
18783 + else if (y > h - 20 && (x > 20 && x < w - 20))
18784 + draw_pixel(fbi, x, y, 0xffff00);
18785 + else if (x == 20 || x == w - 20 ||
18786 + y == 20 || y == h - 20)
18787 + draw_pixel(fbi, x, y, 0xffffff);
18788 + else if (x == y || w - x == h - y)
18789 + draw_pixel(fbi, x, y, 0xff00ff);
18790 + else if (w - x == y || x == h - y)
18791 + draw_pixel(fbi, x, y, 0x00ffff);
18792 + else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
18793 + int t = x * 3 / w;
18794 + unsigned r = 0, g = 0, b = 0;
18795 + unsigned c;
18796 + if (var->bits_per_pixel == 16) {
18797 + if (t == 0)
18798 + b = (y % 32) * 256 / 32;
18799 + else if (t == 1)
18800 + g = (y % 64) * 256 / 64;
18801 + else if (t == 2)
18802 + r = (y % 32) * 256 / 32;
18803 + } else {
18804 + if (t == 0)
18805 + b = (y % 256);
18806 + else if (t == 1)
18807 + g = (y % 256);
18808 + else if (t == 2)
18809 + r = (y % 256);
18810 + }
18811 + c = (r << 16) | (g << 8) | (b << 0);
18812 + draw_pixel(fbi, x, y, c);
18813 + } else {
18814 + draw_pixel(fbi, x, y, 0);
18815 + }
18816 + }
18817 + }
18818 +}
18819 +#endif
18820 +
18821 +static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot)
18822 +{
18823 + struct vrfb *vrfb = &ofbi->region.vrfb;
18824 + unsigned offset;
18825 +
18826 + switch (rot) {
18827 + case FB_ROTATE_UR:
18828 + offset = 0;
18829 + break;
18830 + case FB_ROTATE_CW:
18831 + offset = vrfb->yoffset;
18832 + break;
18833 + case FB_ROTATE_UD:
18834 + offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
18835 + break;
18836 + case FB_ROTATE_CCW:
18837 + offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
18838 + break;
18839 + default:
18840 + BUG();
18841 + }
18842 +
18843 + offset *= vrfb->bytespp;
18844 +
18845 + return offset;
18846 +}
18847 +
18848 +static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot)
18849 +{
18850 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
18851 + return ofbi->region.vrfb.paddr[rot]
18852 + + omapfb_get_vrfb_offset(ofbi, rot);
18853 + } else {
18854 + return ofbi->region.paddr;
18855 + }
18856 +}
18857 +
18858 +static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi)
18859 +{
18860 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
18861 + return ofbi->region.vrfb.paddr[0];
18862 + else
18863 + return ofbi->region.paddr;
18864 +}
18865 +
18866 +static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi)
18867 +{
18868 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
18869 + return ofbi->region.vrfb.vaddr[0];
18870 + else
18871 + return ofbi->region.vaddr;
18872 +}
18873 +
18874 +static struct omapfb_colormode omapfb_colormodes[] = {
18875 + {
18876 + .dssmode = OMAP_DSS_COLOR_UYVY,
18877 + .bits_per_pixel = 16,
18878 + .nonstd = OMAPFB_COLOR_YUV422,
18879 + }, {
18880 + .dssmode = OMAP_DSS_COLOR_YUV2,
18881 + .bits_per_pixel = 16,
18882 + .nonstd = OMAPFB_COLOR_YUY422,
18883 + }, {
18884 + .dssmode = OMAP_DSS_COLOR_ARGB16,
18885 + .bits_per_pixel = 16,
18886 + .red = { .length = 4, .offset = 8, .msb_right = 0 },
18887 + .green = { .length = 4, .offset = 4, .msb_right = 0 },
18888 + .blue = { .length = 4, .offset = 0, .msb_right = 0 },
18889 + .transp = { .length = 4, .offset = 12, .msb_right = 0 },
18890 + }, {
18891 + .dssmode = OMAP_DSS_COLOR_RGB16,
18892 + .bits_per_pixel = 16,
18893 + .red = { .length = 5, .offset = 11, .msb_right = 0 },
18894 + .green = { .length = 6, .offset = 5, .msb_right = 0 },
18895 + .blue = { .length = 5, .offset = 0, .msb_right = 0 },
18896 + .transp = { .length = 0, .offset = 0, .msb_right = 0 },
18897 + }, {
18898 + .dssmode = OMAP_DSS_COLOR_RGB24P,
18899 + .bits_per_pixel = 24,
18900 + .red = { .length = 8, .offset = 16, .msb_right = 0 },
18901 + .green = { .length = 8, .offset = 8, .msb_right = 0 },
18902 + .blue = { .length = 8, .offset = 0, .msb_right = 0 },
18903 + .transp = { .length = 0, .offset = 0, .msb_right = 0 },
18904 + }, {
18905 + .dssmode = OMAP_DSS_COLOR_RGB24U,
18906 + .bits_per_pixel = 32,
18907 + .red = { .length = 8, .offset = 16, .msb_right = 0 },
18908 + .green = { .length = 8, .offset = 8, .msb_right = 0 },
18909 + .blue = { .length = 8, .offset = 0, .msb_right = 0 },
18910 + .transp = { .length = 0, .offset = 0, .msb_right = 0 },
18911 + }, {
18912 + .dssmode = OMAP_DSS_COLOR_ARGB32,
18913 + .bits_per_pixel = 32,
18914 + .red = { .length = 8, .offset = 16, .msb_right = 0 },
18915 + .green = { .length = 8, .offset = 8, .msb_right = 0 },
18916 + .blue = { .length = 8, .offset = 0, .msb_right = 0 },
18917 + .transp = { .length = 8, .offset = 24, .msb_right = 0 },
18918 + }, {
18919 + .dssmode = OMAP_DSS_COLOR_RGBA32,
18920 + .bits_per_pixel = 32,
18921 + .red = { .length = 8, .offset = 24, .msb_right = 0 },
18922 + .green = { .length = 8, .offset = 16, .msb_right = 0 },
18923 + .blue = { .length = 8, .offset = 8, .msb_right = 0 },
18924 + .transp = { .length = 8, .offset = 0, .msb_right = 0 },
18925 + }, {
18926 + .dssmode = OMAP_DSS_COLOR_RGBX32,
18927 + .bits_per_pixel = 32,
18928 + .red = { .length = 8, .offset = 24, .msb_right = 0 },
18929 + .green = { .length = 8, .offset = 16, .msb_right = 0 },
18930 + .blue = { .length = 8, .offset = 8, .msb_right = 0 },
18931 + .transp = { .length = 0, .offset = 0, .msb_right = 0 },
18932 + },
18933 +};
18934 +
18935 +static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
18936 + struct omapfb_colormode *color)
18937 +{
18938 + bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
18939 + {
18940 + return f1->length == f2->length &&
18941 + f1->offset == f2->offset &&
18942 + f1->msb_right == f2->msb_right;
18943 + }
18944 +
18945 + if (var->bits_per_pixel == 0 ||
18946 + var->red.length == 0 ||
18947 + var->blue.length == 0 ||
18948 + var->green.length == 0)
18949 + return 0;
18950 +
18951 + return var->bits_per_pixel == color->bits_per_pixel &&
18952 + cmp_component(&var->red, &color->red) &&
18953 + cmp_component(&var->green, &color->green) &&
18954 + cmp_component(&var->blue, &color->blue) &&
18955 + cmp_component(&var->transp, &color->transp);
18956 +}
18957 +
18958 +static void assign_colormode_to_var(struct fb_var_screeninfo *var,
18959 + struct omapfb_colormode *color)
18960 +{
18961 + var->bits_per_pixel = color->bits_per_pixel;
18962 + var->nonstd = color->nonstd;
18963 + var->red = color->red;
18964 + var->green = color->green;
18965 + var->blue = color->blue;
18966 + var->transp = color->transp;
18967 +}
18968 +
18969 +static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var)
18970 +{
18971 + enum omap_color_mode dssmode;
18972 + int i;
18973 +
18974 + /* first match with nonstd field */
18975 + if (var->nonstd) {
18976 + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
18977 + struct omapfb_colormode *mode = &omapfb_colormodes[i];
18978 + if (var->nonstd == mode->nonstd) {
18979 + assign_colormode_to_var(var, mode);
18980 + return mode->dssmode;
18981 + }
18982 + }
18983 +
18984 + return -EINVAL;
18985 + }
18986 +
18987 + /* then try exact match of bpp and colors */
18988 + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
18989 + struct omapfb_colormode *mode = &omapfb_colormodes[i];
18990 + if (cmp_var_to_colormode(var, mode)) {
18991 + assign_colormode_to_var(var, mode);
18992 + return mode->dssmode;
18993 + }
18994 + }
18995 +
18996 + /* match with bpp if user has not filled color fields
18997 + * properly */
18998 + switch (var->bits_per_pixel) {
18999 + case 1:
19000 + dssmode = OMAP_DSS_COLOR_CLUT1;
19001 + break;
19002 + case 2:
19003 + dssmode = OMAP_DSS_COLOR_CLUT2;
19004 + break;
19005 + case 4:
19006 + dssmode = OMAP_DSS_COLOR_CLUT4;
19007 + break;
19008 + case 8:
19009 + dssmode = OMAP_DSS_COLOR_CLUT8;
19010 + break;
19011 + case 12:
19012 + dssmode = OMAP_DSS_COLOR_RGB12U;
19013 + break;
19014 + case 16:
19015 + dssmode = OMAP_DSS_COLOR_RGB16;
19016 + break;
19017 + case 24:
19018 + dssmode = OMAP_DSS_COLOR_RGB24P;
19019 + break;
19020 + case 32:
19021 + dssmode = OMAP_DSS_COLOR_RGB24U;
19022 + break;
19023 + default:
19024 + return -EINVAL;
19025 + }
19026 +
19027 + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
19028 + struct omapfb_colormode *mode = &omapfb_colormodes[i];
19029 + if (dssmode == mode->dssmode) {
19030 + assign_colormode_to_var(var, mode);
19031 + return mode->dssmode;
19032 + }
19033 + }
19034 +
19035 + return -EINVAL;
19036 +}
19037 +
19038 +int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
19039 + struct fb_var_screeninfo *var)
19040 +{
19041 + int i;
19042 +
19043 + for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
19044 + struct omapfb_colormode *mode = &omapfb_colormodes[i];
19045 + if (dssmode == mode->dssmode) {
19046 + assign_colormode_to_var(var, mode);
19047 + return 0;
19048 + }
19049 + }
19050 + return -ENOENT;
19051 +}
19052 +
19053 +void set_fb_fix(struct fb_info *fbi)
19054 +{
19055 + struct fb_fix_screeninfo *fix = &fbi->fix;
19056 + struct fb_var_screeninfo *var = &fbi->var;
19057 + struct omapfb_info *ofbi = FB2OFB(fbi);
19058 + struct omapfb2_mem_region *rg = &ofbi->region;
19059 +
19060 + DBG("set_fb_fix\n");
19061 +
19062 + /* used by open/write in fbmem.c */
19063 + fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
19064 +
19065 + DBG("changing rotation to %d\n", var->rotate);
19066 +
19067 + /* used by mmap in fbmem.c */
19068 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19069 + switch (var->nonstd) {
19070 + case OMAPFB_COLOR_YUV422:
19071 + case OMAPFB_COLOR_YUY422:
19072 + fix->line_length =
19073 + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
19074 + break;
19075 + default:
19076 + fix->line_length =
19077 + (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
19078 + break;
19079 + }
19080 + } else
19081 + fix->line_length =
19082 + (var->xres_virtual * var->bits_per_pixel) >> 3;
19083 + fix->smem_start = omapfb_get_region_paddr(ofbi);
19084 + fix->smem_len = rg->size;
19085 +
19086 + fix->type = FB_TYPE_PACKED_PIXELS;
19087 +
19088 + if (var->nonstd)
19089 + fix->visual = FB_VISUAL_PSEUDOCOLOR;
19090 + else {
19091 + switch (var->bits_per_pixel) {
19092 + case 32:
19093 + case 24:
19094 + case 16:
19095 + case 12:
19096 + fix->visual = FB_VISUAL_TRUECOLOR;
19097 + /* 12bpp is stored in 16 bits */
19098 + break;
19099 + case 1:
19100 + case 2:
19101 + case 4:
19102 + case 8:
19103 + fix->visual = FB_VISUAL_PSEUDOCOLOR;
19104 + break;
19105 + }
19106 + }
19107 +
19108 + fix->accel = FB_ACCEL_NONE;
19109 +
19110 + fix->xpanstep = 1;
19111 + fix->ypanstep = 1;
19112 +
19113 + if (rg->size && ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19114 + unsigned bytespp;
19115 + bool yuv_mode;
19116 + enum omap_color_mode mode;
19117 +
19118 + mode = fb_mode_to_dss_mode(var);
19119 +
19120 + bytespp = var->bits_per_pixel >> 3;
19121 +
19122 + if (mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY)
19123 + yuv_mode = true;
19124 + else
19125 + yuv_mode = false;
19126 +
19127 + omap_vrfb_setup(&rg->vrfb, rg->paddr,
19128 + var->xres_virtual,
19129 + var->yres_virtual,
19130 + bytespp, yuv_mode);
19131 + }
19132 +}
19133 +
19134 +/* check new var and possibly modify it to be ok */
19135 +int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
19136 +{
19137 + struct omapfb_info *ofbi = FB2OFB(fbi);
19138 + struct omap_dss_device *display = fb2display(fbi);
19139 + unsigned long max_frame_size;
19140 + unsigned long line_size;
19141 + int xres_min, yres_min;
19142 + int xres_max, yres_max;
19143 + enum omap_color_mode mode = 0;
19144 + int i;
19145 + int bytespp;
19146 +
19147 + DBG("check_fb_var %d\n", ofbi->id);
19148 +
19149 + if (ofbi->region.size == 0)
19150 + return 0;
19151 +
19152 + mode = fb_mode_to_dss_mode(var);
19153 + if (mode < 0) {
19154 + DBG("cannot convert var to omap dss mode\n");
19155 + return -EINVAL;
19156 + }
19157 +
19158 + for (i = 0; i < ofbi->num_overlays; ++i) {
19159 + if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
19160 + DBG("invalid mode\n");
19161 + return -EINVAL;
19162 + }
19163 + }
19164 +
19165 + if (var->rotate < 0 || var->rotate > 3)
19166 + return -EINVAL;
19167 +
19168 + xres_min = OMAPFB_PLANE_XRES_MIN;
19169 + xres_max = 2048;
19170 + yres_min = OMAPFB_PLANE_YRES_MIN;
19171 + yres_max = 2048;
19172 +
19173 + bytespp = var->bits_per_pixel >> 3;
19174 +
19175 + /* XXX: some applications seem to set virtual res to 0. */
19176 + if (var->xres_virtual == 0)
19177 + var->xres_virtual = var->xres;
19178 +
19179 + if (var->yres_virtual == 0)
19180 + var->yres_virtual = var->yres;
19181 +
19182 + if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
19183 + return -EINVAL;
19184 +
19185 + if (var->xres < xres_min)
19186 + var->xres = xres_min;
19187 + if (var->yres < yres_min)
19188 + var->yres = yres_min;
19189 + if (var->xres > xres_max)
19190 + var->xres = xres_max;
19191 + if (var->yres > yres_max)
19192 + var->yres = yres_max;
19193 +
19194 + if (var->xres > var->xres_virtual)
19195 + var->xres = var->xres_virtual;
19196 + if (var->yres > var->yres_virtual)
19197 + var->yres = var->yres_virtual;
19198 +
19199 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
19200 + line_size = OMAP_VRFB_LINE_LEN * bytespp;
19201 + else
19202 + line_size = var->xres_virtual * bytespp;
19203 +
19204 + max_frame_size = ofbi->region.size;
19205 +
19206 + DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
19207 +
19208 + if (line_size * var->yres_virtual > max_frame_size) {
19209 + DBG("can't fit FB into memory, reducing y\n");
19210 + var->yres_virtual = max_frame_size / line_size;
19211 +
19212 + if (var->yres_virtual < yres_min)
19213 + var->yres_virtual = yres_min;
19214 +
19215 + if (var->yres > var->yres_virtual)
19216 + var->yres = var->yres_virtual;
19217 + }
19218 +
19219 + if (line_size * var->yres_virtual > max_frame_size) {
19220 + DBG("can't fit FB into memory, reducing x\n");
19221 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
19222 + return -EINVAL;
19223 +
19224 + var->xres_virtual = max_frame_size / var->yres_virtual /
19225 + bytespp;
19226 +
19227 + if (var->xres_virtual < xres_min)
19228 + var->xres_virtual = xres_min;
19229 +
19230 + if (var->xres > var->xres_virtual)
19231 + var->xres = var->xres_virtual;
19232 +
19233 + line_size = var->xres_virtual * bytespp;
19234 + }
19235 +
19236 + if (line_size * var->yres_virtual > max_frame_size) {
19237 + DBG("cannot fit FB to memory\n");
19238 + return -EINVAL;
19239 + }
19240 +
19241 + if (var->xres + var->xoffset > var->xres_virtual)
19242 + var->xoffset = var->xres_virtual - var->xres;
19243 + if (var->yres + var->yoffset > var->yres_virtual)
19244 + var->yoffset = var->yres_virtual - var->yres;
19245 +
19246 + DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
19247 + var->xres, var->yres,
19248 + var->xres_virtual, var->yres_virtual);
19249 +
19250 + var->height = -1;
19251 + var->width = -1;
19252 + var->grayscale = 0;
19253 +
19254 + if (display && display->get_timings) {
19255 + struct omap_video_timings timings;
19256 + display->get_timings(display, &timings);
19257 +
19258 + /* pixclock in ps, the rest in pixclock */
19259 + var->pixclock = timings.pixel_clock != 0 ?
19260 + KHZ2PICOS(timings.pixel_clock) :
19261 + 0;
19262 + var->left_margin = timings.hfp;
19263 + var->right_margin = timings.hbp;
19264 + var->upper_margin = timings.vfp;
19265 + var->lower_margin = timings.vbp;
19266 + var->hsync_len = timings.hsw;
19267 + var->vsync_len = timings.vsw;
19268 + } else {
19269 + var->pixclock = 0;
19270 + var->left_margin = 0;
19271 + var->right_margin = 0;
19272 + var->upper_margin = 0;
19273 + var->lower_margin = 0;
19274 + var->hsync_len = 0;
19275 + var->vsync_len = 0;
19276 + }
19277 +
19278 + /* TODO: get these from panel->config */
19279 + var->vmode = FB_VMODE_NONINTERLACED;
19280 + var->sync = 0;
19281 +
19282 + return 0;
19283 +}
19284 +
19285 +/*
19286 + * ---------------------------------------------------------------------------
19287 + * fbdev framework callbacks
19288 + * ---------------------------------------------------------------------------
19289 + */
19290 +static int omapfb_open(struct fb_info *fbi, int user)
19291 +{
19292 + return 0;
19293 +}
19294 +
19295 +static int omapfb_release(struct fb_info *fbi, int user)
19296 +{
19297 +#if 0
19298 + struct omapfb_info *ofbi = FB2OFB(fbi);
19299 + struct omapfb2_device *fbdev = ofbi->fbdev;
19300 + struct omap_dss_device *display = fb2display(fbi);
19301 +
19302 + DBG("Closing fb with plane index %d\n", ofbi->id);
19303 +
19304 + omapfb_lock(fbdev);
19305 +
19306 + if (display && display->get_update_mode && display->update) {
19307 + /* XXX this update should be removed, I think. But it's
19308 + * good for debugging */
19309 + if (display->get_update_mode(display) ==
19310 + OMAP_DSS_UPDATE_MANUAL) {
19311 + u16 w, h;
19312 +
19313 + if (display->sync)
19314 + display->sync(display);
19315 +
19316 + display->get_resolution(display, &w, &h);
19317 + display->update(display, 0, 0, w, h);
19318 + }
19319 + }
19320 +
19321 + if (display && display->sync)
19322 + display->sync(display);
19323 +
19324 + omapfb_unlock(fbdev);
19325 +#endif
19326 + return 0;
19327 +}
19328 +
19329 +/* setup overlay according to the fb */
19330 +static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
19331 + u16 posx, u16 posy, u16 outw, u16 outh)
19332 +{
19333 + int r = 0;
19334 + struct omapfb_info *ofbi = FB2OFB(fbi);
19335 + struct fb_var_screeninfo *var = &fbi->var;
19336 + struct fb_fix_screeninfo *fix = &fbi->fix;
19337 + enum omap_color_mode mode = 0;
19338 + int offset;
19339 + u32 data_start_p;
19340 + void __iomem *data_start_v;
19341 + struct omap_overlay_info info;
19342 + int xres, yres;
19343 + int screen_width;
19344 + int mirror;
19345 + int rotation = var->rotate;
19346 + int i;
19347 +
19348 + for (i = 0; i < ofbi->num_overlays; i++) {
19349 + if (ovl != ofbi->overlays[i])
19350 + continue;
19351 +
19352 + rotation = (rotation + ofbi->rotation[i]) % 4;
19353 + break;
19354 + }
19355 +
19356 + DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
19357 + posx, posy, outw, outh);
19358 +
19359 + if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
19360 + xres = var->yres;
19361 + yres = var->xres;
19362 + } else {
19363 + xres = var->xres;
19364 + yres = var->yres;
19365 + }
19366 +
19367 + offset = ((var->yoffset * var->xres_virtual +
19368 + var->xoffset) * var->bits_per_pixel) >> 3;
19369 +
19370 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19371 + data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
19372 + data_start_v = NULL;
19373 + } else {
19374 + data_start_p = omapfb_get_region_paddr(ofbi);
19375 + data_start_v = omapfb_get_region_vaddr(ofbi);
19376 + }
19377 +
19378 + data_start_p += offset;
19379 + data_start_v += offset;
19380 +
19381 + mode = fb_mode_to_dss_mode(var);
19382 +
19383 + if (mode == -EINVAL) {
19384 + DBG("fb_mode_to_dss_mode failed");
19385 + r = -EINVAL;
19386 + goto err;
19387 + }
19388 +
19389 + switch (var->nonstd) {
19390 + case OMAPFB_COLOR_YUV422:
19391 + case OMAPFB_COLOR_YUY422:
19392 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19393 + screen_width = fix->line_length
19394 + / (var->bits_per_pixel >> 2);
19395 + break;
19396 + }
19397 + default:
19398 + screen_width = fix->line_length / (var->bits_per_pixel >> 3);
19399 + break;
19400 + }
19401 +
19402 + ovl->get_overlay_info(ovl, &info);
19403 +
19404 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
19405 + mirror = 0;
19406 + else
19407 + mirror = ofbi->mirror;
19408 +
19409 + info.paddr = data_start_p;
19410 + info.vaddr = data_start_v;
19411 + info.screen_width = screen_width;
19412 + info.width = xres;
19413 + info.height = yres;
19414 + info.color_mode = mode;
19415 + info.rotation_type = ofbi->rotation_type;
19416 + info.rotation = rotation;
19417 + info.mirror = mirror;
19418 +
19419 + info.pos_x = posx;
19420 + info.pos_y = posy;
19421 + info.out_width = outw;
19422 + info.out_height = outh;
19423 +
19424 + r = ovl->set_overlay_info(ovl, &info);
19425 + if (r) {
19426 + DBG("ovl->setup_overlay_info failed\n");
19427 + goto err;
19428 + }
19429 +
19430 + return 0;
19431 +
19432 +err:
19433 + DBG("setup_overlay failed\n");
19434 + return r;
19435 +}
19436 +
19437 +/* apply var to the overlay */
19438 +int omapfb_apply_changes(struct fb_info *fbi, int init)
19439 +{
19440 + int r = 0;
19441 + struct omapfb_info *ofbi = FB2OFB(fbi);
19442 + struct fb_var_screeninfo *var = &fbi->var;
19443 + struct omap_overlay *ovl;
19444 + u16 posx, posy;
19445 + u16 outw, outh;
19446 + int i;
19447 +
19448 +#ifdef DEBUG
19449 + if (omapfb_test_pattern)
19450 + fill_fb(fbi);
19451 +#endif
19452 +
19453 + for (i = 0; i < ofbi->num_overlays; i++) {
19454 + ovl = ofbi->overlays[i];
19455 +
19456 + DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
19457 +
19458 + if (ofbi->region.size == 0) {
19459 + /* the fb is not available. disable the overlay */
19460 + omapfb_overlay_enable(ovl, 0);
19461 + if (!init && ovl->manager)
19462 + ovl->manager->apply(ovl->manager);
19463 + continue;
19464 + }
19465 +
19466 + if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
19467 + int rotation = (var->rotate + ofbi->rotation[i]) % 4;
19468 + if (rotation == FB_ROTATE_CW ||
19469 + rotation == FB_ROTATE_CCW) {
19470 + outw = var->yres;
19471 + outh = var->xres;
19472 + } else {
19473 + outw = var->xres;
19474 + outh = var->yres;
19475 + }
19476 + } else {
19477 + outw = ovl->info.out_width;
19478 + outh = ovl->info.out_height;
19479 + }
19480 +
19481 + if (init) {
19482 + posx = 0;
19483 + posy = 0;
19484 + } else {
19485 + posx = ovl->info.pos_x;
19486 + posy = ovl->info.pos_y;
19487 + }
19488 +
19489 + r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
19490 + if (r)
19491 + goto err;
19492 +
19493 + if (!init && ovl->manager)
19494 + ovl->manager->apply(ovl->manager);
19495 + }
19496 + return 0;
19497 +err:
19498 + DBG("apply_changes failed\n");
19499 + return r;
19500 +}
19501 +
19502 +/* checks var and eventually tweaks it to something supported,
19503 + * DO NOT MODIFY PAR */
19504 +static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
19505 +{
19506 + int r;
19507 +
19508 + DBG("check_var(%d)\n", FB2OFB(fbi)->id);
19509 +
19510 + r = check_fb_var(fbi, var);
19511 +
19512 + return r;
19513 +}
19514 +
19515 +/* set the video mode according to info->var */
19516 +static int omapfb_set_par(struct fb_info *fbi)
19517 +{
19518 + int r;
19519 +
19520 + DBG("set_par(%d)\n", FB2OFB(fbi)->id);
19521 +
19522 + set_fb_fix(fbi);
19523 + r = omapfb_apply_changes(fbi, 0);
19524 +
19525 + return r;
19526 +}
19527 +
19528 +static int omapfb_pan_display(struct fb_var_screeninfo *var,
19529 + struct fb_info *fbi)
19530 +{
19531 + struct omapfb_info *ofbi = FB2OFB(fbi);
19532 + int r = 0;
19533 +
19534 + DBG("pan_display(%d)\n", ofbi->id);
19535 +
19536 + if (var->xoffset != fbi->var.xoffset ||
19537 + var->yoffset != fbi->var.yoffset) {
19538 + struct fb_var_screeninfo new_var;
19539 +
19540 + new_var = fbi->var;
19541 + new_var.xoffset = var->xoffset;
19542 + new_var.yoffset = var->yoffset;
19543 +
19544 + r = check_fb_var(fbi, &new_var);
19545 +
19546 + if (r == 0) {
19547 + fbi->var = new_var;
19548 + set_fb_fix(fbi);
19549 + r = omapfb_apply_changes(fbi, 0);
19550 + }
19551 + }
19552 +
19553 + return r;
19554 +}
19555 +
19556 +static void mmap_user_open(struct vm_area_struct *vma)
19557 +{
19558 + struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
19559 +
19560 + atomic_inc(&ofbi->map_count);
19561 +}
19562 +
19563 +static void mmap_user_close(struct vm_area_struct *vma)
19564 +{
19565 + struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
19566 +
19567 + atomic_dec(&ofbi->map_count);
19568 +}
19569 +
19570 +static struct vm_operations_struct mmap_user_ops = {
19571 + .open = mmap_user_open,
19572 + .close = mmap_user_close,
19573 +};
19574 +
19575 +static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
19576 +{
19577 + struct omapfb_info *ofbi = FB2OFB(fbi);
19578 + struct fb_fix_screeninfo *fix = &fbi->fix;
19579 + unsigned long off;
19580 + unsigned long start;
19581 + u32 len;
19582 +
19583 + if (vma->vm_end - vma->vm_start == 0)
19584 + return 0;
19585 + if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
19586 + return -EINVAL;
19587 + off = vma->vm_pgoff << PAGE_SHIFT;
19588 +
19589 + start = omapfb_get_region_paddr(ofbi);
19590 + len = fix->smem_len;
19591 + if (off >= len)
19592 + return -EINVAL;
19593 + if ((vma->vm_end - vma->vm_start + off) > len)
19594 + return -EINVAL;
19595 +
19596 + off += start;
19597 +
19598 + DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
19599 +
19600 + vma->vm_pgoff = off >> PAGE_SHIFT;
19601 + vma->vm_flags |= VM_IO | VM_RESERVED;
19602 + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
19603 + vma->vm_ops = &mmap_user_ops;
19604 + vma->vm_private_data = ofbi;
19605 + if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
19606 + vma->vm_end - vma->vm_start, vma->vm_page_prot))
19607 + return -EAGAIN;
19608 + /* vm_ops.open won't be called for mmap itself. */
19609 + atomic_inc(&ofbi->map_count);
19610 + return 0;
19611 +}
19612 +
19613 +/* Store a single color palette entry into a pseudo palette or the hardware
19614 + * palette if one is available. For now we support only 16bpp and thus store
19615 + * the entry only to the pseudo palette.
19616 + */
19617 +static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
19618 + u_int blue, u_int transp, int update_hw_pal)
19619 +{
19620 + /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
19621 + /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
19622 + struct fb_var_screeninfo *var = &fbi->var;
19623 + int r = 0;
19624 +
19625 + enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
19626 +
19627 + /*switch (plane->color_mode) {*/
19628 + switch (mode) {
19629 + case OMAPFB_COLOR_YUV422:
19630 + case OMAPFB_COLOR_YUV420:
19631 + case OMAPFB_COLOR_YUY422:
19632 + r = -EINVAL;
19633 + break;
19634 + case OMAPFB_COLOR_CLUT_8BPP:
19635 + case OMAPFB_COLOR_CLUT_4BPP:
19636 + case OMAPFB_COLOR_CLUT_2BPP:
19637 + case OMAPFB_COLOR_CLUT_1BPP:
19638 + /*
19639 + if (fbdev->ctrl->setcolreg)
19640 + r = fbdev->ctrl->setcolreg(regno, red, green, blue,
19641 + transp, update_hw_pal);
19642 + */
19643 + /* Fallthrough */
19644 + r = -EINVAL;
19645 + break;
19646 + case OMAPFB_COLOR_RGB565:
19647 + case OMAPFB_COLOR_RGB444:
19648 + case OMAPFB_COLOR_RGB24P:
19649 + case OMAPFB_COLOR_RGB24U:
19650 + if (r != 0)
19651 + break;
19652 +
19653 + if (regno < 0) {
19654 + r = -EINVAL;
19655 + break;
19656 + }
19657 +
19658 + if (regno < 16) {
19659 + u16 pal;
19660 + pal = ((red >> (16 - var->red.length)) <<
19661 + var->red.offset) |
19662 + ((green >> (16 - var->green.length)) <<
19663 + var->green.offset) |
19664 + (blue >> (16 - var->blue.length));
19665 + ((u32 *)(fbi->pseudo_palette))[regno] = pal;
19666 + }
19667 + break;
19668 + default:
19669 + BUG();
19670 + }
19671 + return r;
19672 +}
19673 +
19674 +static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
19675 + u_int transp, struct fb_info *info)
19676 +{
19677 + DBG("setcolreg\n");
19678 +
19679 + return _setcolreg(info, regno, red, green, blue, transp, 1);
19680 +}
19681 +
19682 +static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
19683 +{
19684 + int count, index, r;
19685 + u16 *red, *green, *blue, *transp;
19686 + u16 trans = 0xffff;
19687 +
19688 + DBG("setcmap\n");
19689 +
19690 + red = cmap->red;
19691 + green = cmap->green;
19692 + blue = cmap->blue;
19693 + transp = cmap->transp;
19694 + index = cmap->start;
19695 +
19696 + for (count = 0; count < cmap->len; count++) {
19697 + if (transp)
19698 + trans = *transp++;
19699 + r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
19700 + count == cmap->len - 1);
19701 + if (r != 0)
19702 + return r;
19703 + }
19704 +
19705 + return 0;
19706 +}
19707 +
19708 +static void omapfb_vrfb_suspend_all(struct omapfb2_device *fbdev)
19709 +{
19710 + int i;
19711 +
19712 + for (i = 0; i < fbdev->num_fbs; i++) {
19713 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
19714 +
19715 + if (ofbi->region.vrfb.vaddr[0])
19716 + omap_vrfb_suspend_ctx(&ofbi->region.vrfb);
19717 + }
19718 +}
19719 +
19720 +static void omapfb_vrfb_resume_all(struct omapfb2_device *fbdev)
19721 +{
19722 + int i;
19723 +
19724 + for (i = 0; i < fbdev->num_fbs; i++) {
19725 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
19726 +
19727 + if (ofbi->region.vrfb.vaddr[0])
19728 + omap_vrfb_resume_ctx(&ofbi->region.vrfb);
19729 + }
19730 +}
19731 +
19732 +static int omapfb_blank(int blank, struct fb_info *fbi)
19733 +{
19734 + struct omapfb_info *ofbi = FB2OFB(fbi);
19735 + struct omapfb2_device *fbdev = ofbi->fbdev;
19736 + struct omap_dss_device *display = fb2display(fbi);
19737 + int do_update = 0;
19738 + int r = 0;
19739 +
19740 + omapfb_lock(fbdev);
19741 +
19742 + switch (blank) {
19743 + case FB_BLANK_UNBLANK:
19744 + if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
19745 + goto exit;
19746 +
19747 + omapfb_vrfb_resume_all(fbdev);
19748 +
19749 + if (display->resume)
19750 + r = display->resume(display);
19751 +
19752 + if (r == 0 && display->get_update_mode &&
19753 + display->get_update_mode(display) ==
19754 + OMAP_DSS_UPDATE_MANUAL)
19755 + do_update = 1;
19756 +
19757 + break;
19758 +
19759 + case FB_BLANK_NORMAL:
19760 + /* FB_BLANK_NORMAL could be implemented.
19761 + * Needs DSS additions. */
19762 + case FB_BLANK_VSYNC_SUSPEND:
19763 + case FB_BLANK_HSYNC_SUSPEND:
19764 + case FB_BLANK_POWERDOWN:
19765 + if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
19766 + goto exit;
19767 +
19768 + if (display->suspend)
19769 + r = display->suspend(display);
19770 +
19771 + omapfb_vrfb_suspend_all(fbdev);
19772 +
19773 + break;
19774 +
19775 + default:
19776 + r = -EINVAL;
19777 + }
19778 +
19779 +exit:
19780 + omapfb_unlock(fbdev);
19781 +
19782 + if (r == 0 && do_update && display->update) {
19783 + u16 w, h;
19784 + display->get_resolution(display, &w, &h);
19785 +
19786 + r = display->update(display, 0, 0, w, h);
19787 + }
19788 +
19789 + return r;
19790 +}
19791 +
19792 +#if 0
19793 +/* XXX fb_read and fb_write are needed for VRFB */
19794 +ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
19795 + size_t count, loff_t *ppos)
19796 +{
19797 + DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
19798 + /* XXX needed for VRFB */
19799 + return count;
19800 +}
19801 +#endif
19802 +
19803 +static struct fb_ops omapfb_ops = {
19804 + .owner = THIS_MODULE,
19805 + .fb_open = omapfb_open,
19806 + .fb_release = omapfb_release,
19807 + .fb_fillrect = cfb_fillrect,
19808 + .fb_copyarea = cfb_copyarea,
19809 + .fb_imageblit = cfb_imageblit,
19810 + .fb_blank = omapfb_blank,
19811 + .fb_ioctl = omapfb_ioctl,
19812 + .fb_check_var = omapfb_check_var,
19813 + .fb_set_par = omapfb_set_par,
19814 + .fb_pan_display = omapfb_pan_display,
19815 + .fb_mmap = omapfb_mmap,
19816 + .fb_setcolreg = omapfb_setcolreg,
19817 + .fb_setcmap = omapfb_setcmap,
19818 + /*.fb_write = omapfb_write,*/
19819 +};
19820 +
19821 +static void omapfb_free_fbmem(struct fb_info *fbi)
19822 +{
19823 + struct omapfb_info *ofbi = FB2OFB(fbi);
19824 + struct omapfb2_device *fbdev = ofbi->fbdev;
19825 + struct omapfb2_mem_region *rg;
19826 +
19827 + rg = &ofbi->region;
19828 +
19829 + if (rg->paddr)
19830 + if (omap_vram_free(rg->paddr, rg->size))
19831 + dev_err(fbdev->dev, "VRAM FREE failed\n");
19832 +
19833 + if (rg->vaddr)
19834 + iounmap(rg->vaddr);
19835 +
19836 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19837 + /* unmap the 0 angle rotation */
19838 + if (rg->vrfb.vaddr[0]) {
19839 + iounmap(rg->vrfb.vaddr[0]);
19840 + omap_vrfb_release_ctx(&rg->vrfb);
19841 + }
19842 + }
19843 +
19844 + rg->vaddr = NULL;
19845 + rg->paddr = 0;
19846 + rg->alloc = 0;
19847 + rg->size = 0;
19848 +}
19849 +
19850 +static void clear_fb_info(struct fb_info *fbi)
19851 +{
19852 + memset(&fbi->var, 0, sizeof(fbi->var));
19853 + memset(&fbi->fix, 0, sizeof(fbi->fix));
19854 + strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
19855 +}
19856 +
19857 +static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
19858 +{
19859 + int i;
19860 +
19861 + DBG("free all fbmem\n");
19862 +
19863 + for (i = 0; i < fbdev->num_fbs; i++) {
19864 + struct fb_info *fbi = fbdev->fbs[i];
19865 + omapfb_free_fbmem(fbi);
19866 + clear_fb_info(fbi);
19867 + }
19868 +
19869 + return 0;
19870 +}
19871 +
19872 +static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
19873 + unsigned long paddr)
19874 +{
19875 + struct omapfb_info *ofbi = FB2OFB(fbi);
19876 + struct omapfb2_device *fbdev = ofbi->fbdev;
19877 + struct omapfb2_mem_region *rg;
19878 + void __iomem *vaddr;
19879 + int r;
19880 +
19881 + rg = &ofbi->region;
19882 + memset(rg, 0, sizeof(*rg));
19883 +
19884 + size = PAGE_ALIGN(size);
19885 +
19886 + if (!paddr) {
19887 + DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
19888 + r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr);
19889 + } else {
19890 + DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
19891 + ofbi->id);
19892 + r = omap_vram_reserve(paddr, size);
19893 + }
19894 +
19895 + if (r) {
19896 + dev_err(fbdev->dev, "failed to allocate framebuffer\n");
19897 + return -ENOMEM;
19898 + }
19899 +
19900 + if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
19901 + vaddr = ioremap_wc(paddr, size);
19902 +
19903 + if (!vaddr) {
19904 + dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
19905 + omap_vram_free(paddr, size);
19906 + return -ENOMEM;
19907 + }
19908 +
19909 + DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
19910 + } else {
19911 + void __iomem *va;
19912 +
19913 + r = omap_vrfb_request_ctx(&rg->vrfb);
19914 + if (r) {
19915 + dev_err(fbdev->dev, "vrfb create ctx failed\n");
19916 + return r;
19917 + }
19918 +
19919 + /* only ioremap the 0 angle view */
19920 + va = ioremap_wc(rg->vrfb.paddr[0], size);
19921 +
19922 + if (!va) {
19923 + printk(KERN_ERR "vrfb: ioremap failed\n");
19924 + omap_vrfb_release_ctx(&rg->vrfb);
19925 + return -ENOMEM;
19926 + }
19927 +
19928 + DBG("ioremapped vrfb area 0 to %p\n", va);
19929 +
19930 + rg->vrfb.vaddr[0] = va;
19931 +
19932 + vaddr = NULL;
19933 + }
19934 +
19935 + rg->paddr = paddr;
19936 + rg->vaddr = vaddr;
19937 + rg->size = size;
19938 + rg->alloc = 1;
19939 +
19940 + return 0;
19941 +}
19942 +
19943 +/* allocate fbmem using display resolution as reference */
19944 +static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
19945 + unsigned long paddr)
19946 +{
19947 + struct omapfb_info *ofbi = FB2OFB(fbi);
19948 + struct omap_dss_device *display;
19949 + int bytespp;
19950 +
19951 + display = fb2display(fbi);
19952 +
19953 + if (!display)
19954 + return 0;
19955 +
19956 + switch (display->get_recommended_bpp(display)) {
19957 + case 16:
19958 + bytespp = 2;
19959 + break;
19960 + case 24:
19961 + bytespp = 4;
19962 + break;
19963 + default:
19964 + bytespp = 4;
19965 + break;
19966 + }
19967 +
19968 + if (!size) {
19969 + u16 w, h;
19970 +
19971 + display->get_resolution(display, &w, &h);
19972 +
19973 + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
19974 +#ifdef DEBUG
19975 + int oldw = w, oldh = h;
19976 +#endif
19977 +
19978 + omap_vrfb_adjust_size(&w, &h, bytespp);
19979 +
19980 + /* Because we change the resolution of the 0 degree
19981 + * view, we need to alloc max(w, h) for height */
19982 + h = max(w, h);
19983 + w = OMAP_VRFB_LINE_LEN;
19984 +
19985 + DBG("adjusting fb mem size for VRFB, %dx%d -> %dx%d\n",
19986 + oldw, oldh, w, h);
19987 + }
19988 +
19989 + size = w * h * bytespp;
19990 + }
19991 +
19992 + if (!size)
19993 + return 0;
19994 +
19995 + return omapfb_alloc_fbmem(fbi, size, paddr);
19996 +}
19997 +
19998 +static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt)
19999 +{
20000 + enum omap_color_mode mode;
20001 +
20002 + switch (fmt) {
20003 + case OMAPFB_COLOR_RGB565:
20004 + mode = OMAP_DSS_COLOR_RGB16;
20005 + break;
20006 + case OMAPFB_COLOR_YUV422:
20007 + mode = OMAP_DSS_COLOR_YUV2;
20008 + break;
20009 + case OMAPFB_COLOR_CLUT_8BPP:
20010 + mode = OMAP_DSS_COLOR_CLUT8;
20011 + break;
20012 + case OMAPFB_COLOR_CLUT_4BPP:
20013 + mode = OMAP_DSS_COLOR_CLUT4;
20014 + break;
20015 + case OMAPFB_COLOR_CLUT_2BPP:
20016 + mode = OMAP_DSS_COLOR_CLUT2;
20017 + break;
20018 + case OMAPFB_COLOR_CLUT_1BPP:
20019 + mode = OMAP_DSS_COLOR_CLUT1;
20020 + break;
20021 + case OMAPFB_COLOR_RGB444:
20022 + mode = OMAP_DSS_COLOR_RGB12U;
20023 + break;
20024 + case OMAPFB_COLOR_YUY422:
20025 + mode = OMAP_DSS_COLOR_UYVY;
20026 + break;
20027 + case OMAPFB_COLOR_ARGB16:
20028 + mode = OMAP_DSS_COLOR_ARGB16;
20029 + break;
20030 + case OMAPFB_COLOR_RGB24U:
20031 + mode = OMAP_DSS_COLOR_RGB24U;
20032 + break;
20033 + case OMAPFB_COLOR_RGB24P:
20034 + mode = OMAP_DSS_COLOR_RGB24P;
20035 + break;
20036 + case OMAPFB_COLOR_ARGB32:
20037 + mode = OMAP_DSS_COLOR_ARGB32;
20038 + break;
20039 + case OMAPFB_COLOR_RGBA32:
20040 + mode = OMAP_DSS_COLOR_RGBA32;
20041 + break;
20042 + case OMAPFB_COLOR_RGBX32:
20043 + mode = OMAP_DSS_COLOR_RGBX32;
20044 + break;
20045 + default:
20046 + mode = -EINVAL;
20047 + }
20048 +
20049 + return mode;
20050 +}
20051 +
20052 +static int omapfb_parse_vram_param(const char *param, int max_entries,
20053 + unsigned long *sizes, unsigned long *paddrs)
20054 +{
20055 + int fbnum;
20056 + unsigned long size;
20057 + unsigned long paddr = 0;
20058 + char *p, *start;
20059 +
20060 + start = (char *)param;
20061 +
20062 + while (1) {
20063 + p = start;
20064 +
20065 + fbnum = simple_strtoul(p, &p, 10);
20066 +
20067 + if (p == param)
20068 + return -EINVAL;
20069 +
20070 + if (*p != ':')
20071 + return -EINVAL;
20072 +
20073 + if (fbnum >= max_entries)
20074 + return -EINVAL;
20075 +
20076 + size = memparse(p + 1, &p);
20077 +
20078 + if (!size)
20079 + return -EINVAL;
20080 +
20081 + paddr = 0;
20082 +
20083 + if (*p == '@') {
20084 + paddr = simple_strtoul(p + 1, &p, 16);
20085 +
20086 + if (!paddr)
20087 + return -EINVAL;
20088 +
20089 + }
20090 +
20091 + paddrs[fbnum] = paddr;
20092 + sizes[fbnum] = size;
20093 +
20094 + if (*p == 0)
20095 + break;
20096 +
20097 + if (*p != ',')
20098 + return -EINVAL;
20099 +
20100 + ++p;
20101 +
20102 + start = p;
20103 + }
20104 +
20105 + return 0;
20106 +}
20107 +
20108 +static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
20109 +{
20110 + int i, r;
20111 + unsigned long vram_sizes[10];
20112 + unsigned long vram_paddrs[10];
20113 +
20114 + memset(&vram_sizes, 0, sizeof(vram_sizes));
20115 + memset(&vram_paddrs, 0, sizeof(vram_paddrs));
20116 +
20117 + if (def_vram && omapfb_parse_vram_param(def_vram, 10,
20118 + vram_sizes, vram_paddrs)) {
20119 + dev_err(fbdev->dev, "failed to parse vram parameter\n");
20120 +
20121 + memset(&vram_sizes, 0, sizeof(vram_sizes));
20122 + memset(&vram_paddrs, 0, sizeof(vram_paddrs));
20123 + }
20124 +
20125 + if (fbdev->dev->platform_data) {
20126 + struct omapfb_platform_data *opd;
20127 + opd = fbdev->dev->platform_data;
20128 + for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
20129 + if (!vram_sizes[i]) {
20130 + unsigned long size;
20131 + unsigned long paddr;
20132 +
20133 + size = opd->mem_desc.region[i].size;
20134 + paddr = opd->mem_desc.region[i].paddr;
20135 +
20136 + vram_sizes[i] = size;
20137 + vram_paddrs[i] = paddr;
20138 + }
20139 + }
20140 + }
20141 +
20142 + for (i = 0; i < fbdev->num_fbs; i++) {
20143 + /* allocate memory automatically only for fb0, or if
20144 + * excplicitly defined with vram or plat data option */
20145 + if (i == 0 || vram_sizes[i] != 0) {
20146 + r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
20147 + vram_sizes[i], vram_paddrs[i]);
20148 +
20149 + if (r)
20150 + return r;
20151 + }
20152 + }
20153 +
20154 + for (i = 0; i < fbdev->num_fbs; i++) {
20155 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
20156 + struct omapfb2_mem_region *rg;
20157 + rg = &ofbi->region;
20158 +
20159 + DBG("region%d phys %08x virt %p size=%lu\n",
20160 + i,
20161 + rg->paddr,
20162 + rg->vaddr,
20163 + rg->size);
20164 + }
20165 +
20166 + return 0;
20167 +}
20168 +
20169 +int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
20170 +{
20171 + struct omapfb_info *ofbi = FB2OFB(fbi);
20172 + struct omapfb2_device *fbdev = ofbi->fbdev;
20173 + struct omap_dss_device *display = fb2display(fbi);
20174 + struct omapfb2_mem_region *rg = &ofbi->region;
20175 + unsigned long old_size = rg->size;
20176 + unsigned long old_paddr = rg->paddr;
20177 + int old_type = rg->type;
20178 + int r;
20179 +
20180 + if (type > OMAPFB_MEMTYPE_MAX)
20181 + return -EINVAL;
20182 +
20183 + size = PAGE_ALIGN(size);
20184 +
20185 + if (old_size == size && old_type == type)
20186 + return 0;
20187 +
20188 + if (display && display->sync)
20189 + display->sync(display);
20190 +
20191 + omapfb_free_fbmem(fbi);
20192 +
20193 + if (size == 0) {
20194 + clear_fb_info(fbi);
20195 + return 0;
20196 + }
20197 +
20198 + r = omapfb_alloc_fbmem(fbi, size, 0);
20199 +
20200 + if (r) {
20201 + if (old_size)
20202 + omapfb_alloc_fbmem(fbi, old_size, old_paddr);
20203 +
20204 + if (rg->size == 0)
20205 + clear_fb_info(fbi);
20206 +
20207 + return r;
20208 + }
20209 +
20210 + if (old_size == size)
20211 + return 0;
20212 +
20213 + if (old_size == 0) {
20214 + DBG("initializing fb %d\n", ofbi->id);
20215 + r = omapfb_fb_init(fbdev, fbi);
20216 + if (r) {
20217 + DBG("omapfb_fb_init failed\n");
20218 + goto err;
20219 + }
20220 + r = omapfb_apply_changes(fbi, 1);
20221 + if (r) {
20222 + DBG("omapfb_apply_changes failed\n");
20223 + goto err;
20224 + }
20225 + } else {
20226 + struct fb_var_screeninfo new_var;
20227 + memcpy(&new_var, &fbi->var, sizeof(new_var));
20228 + r = check_fb_var(fbi, &new_var);
20229 + if (r)
20230 + goto err;
20231 + memcpy(&fbi->var, &new_var, sizeof(fbi->var));
20232 + set_fb_fix(fbi);
20233 + }
20234 +
20235 + return 0;
20236 +err:
20237 + omapfb_free_fbmem(fbi);
20238 + clear_fb_info(fbi);
20239 + return r;
20240 +}
20241 +
20242 +/* initialize fb_info, var, fix to something sane based on the display */
20243 +static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
20244 +{
20245 + struct fb_var_screeninfo *var = &fbi->var;
20246 + struct omap_dss_device *display = fb2display(fbi);
20247 + struct omapfb_info *ofbi = FB2OFB(fbi);
20248 + int r = 0;
20249 +
20250 + fbi->fbops = &omapfb_ops;
20251 + fbi->flags = FBINFO_FLAG_DEFAULT;
20252 + fbi->pseudo_palette = fbdev->pseudo_palette;
20253 +
20254 + if (ofbi->region.size == 0) {
20255 + clear_fb_info(fbi);
20256 + return 0;
20257 + }
20258 +
20259 + var->nonstd = 0;
20260 + var->bits_per_pixel = 0;
20261 +
20262 + var->rotate = def_rotate;
20263 +
20264 + /*
20265 + * Check if there is a default color format set in the board file,
20266 + * and use this format instead the default deducted from the
20267 + * display bpp.
20268 + */
20269 + if (fbdev->dev->platform_data) {
20270 + struct omapfb_platform_data *opd;
20271 + int id = ofbi->id;
20272 +
20273 + opd = fbdev->dev->platform_data;
20274 + if (opd->mem_desc.region[id].format_used) {
20275 + enum omap_color_mode mode;
20276 + enum omapfb_color_format format;
20277 +
20278 + format = opd->mem_desc.region[id].format;
20279 + mode = fb_format_to_dss_mode(format);
20280 + if (mode < 0) {
20281 + r = mode;
20282 + goto err;
20283 + }
20284 + r = dss_mode_to_fb_mode(mode, var);
20285 + if (r < 0)
20286 + goto err;
20287 + }
20288 + }
20289 +
20290 + if (display) {
20291 + u16 w, h;
20292 + int rotation = (var->rotate + ofbi->rotation[0]) % 4;
20293 +
20294 + display->get_resolution(display, &w, &h);
20295 +
20296 + if (rotation == FB_ROTATE_CW ||
20297 + rotation == FB_ROTATE_CCW) {
20298 + var->xres = h;
20299 + var->yres = w;
20300 + } else {
20301 + var->xres = w;
20302 + var->yres = h;
20303 + }
20304 +
20305 + var->xres_virtual = var->xres;
20306 + var->yres_virtual = var->yres;
20307 +
20308 + if (!var->bits_per_pixel) {
20309 + switch (display->get_recommended_bpp(display)) {
20310 + case 16:
20311 + var->bits_per_pixel = 16;
20312 + break;
20313 + case 24:
20314 + var->bits_per_pixel = 32;
20315 + break;
20316 + default:
20317 + dev_err(fbdev->dev, "illegal display "
20318 + "bpp\n");
20319 + return -EINVAL;
20320 + }
20321 + }
20322 + } else {
20323 + /* if there's no display, let's just guess some basic values */
20324 + var->xres = 320;
20325 + var->yres = 240;
20326 + var->xres_virtual = var->xres;
20327 + var->yres_virtual = var->yres;
20328 + if (!var->bits_per_pixel)
20329 + var->bits_per_pixel = 16;
20330 + }
20331 +
20332 + r = check_fb_var(fbi, var);
20333 + if (r)
20334 + goto err;
20335 +
20336 + set_fb_fix(fbi);
20337 +
20338 + r = fb_alloc_cmap(&fbi->cmap, 256, 0);
20339 + if (r)
20340 + dev_err(fbdev->dev, "unable to allocate color map memory\n");
20341 +
20342 +err:
20343 + return r;
20344 +}
20345 +
20346 +static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
20347 +{
20348 + fb_dealloc_cmap(&fbi->cmap);
20349 +}
20350 +
20351 +
20352 +static void omapfb_free_resources(struct omapfb2_device *fbdev)
20353 +{
20354 + int i;
20355 +
20356 + DBG("free_resources\n");
20357 +
20358 + if (fbdev == NULL)
20359 + return;
20360 +
20361 + for (i = 0; i < fbdev->num_fbs; i++)
20362 + unregister_framebuffer(fbdev->fbs[i]);
20363 +
20364 + /* free the reserved fbmem */
20365 + omapfb_free_all_fbmem(fbdev);
20366 +
20367 + for (i = 0; i < fbdev->num_fbs; i++) {
20368 + fbinfo_cleanup(fbdev, fbdev->fbs[i]);
20369 + framebuffer_release(fbdev->fbs[i]);
20370 + }
20371 +
20372 + for (i = 0; i < fbdev->num_displays; i++) {
20373 + if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
20374 + fbdev->displays[i]->disable(fbdev->displays[i]);
20375 +
20376 + omap_dss_put_device(fbdev->displays[i]);
20377 + }
20378 +
20379 + dev_set_drvdata(fbdev->dev, NULL);
20380 + kfree(fbdev);
20381 +}
20382 +
20383 +static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
20384 +{
20385 + int r, i;
20386 +
20387 + fbdev->num_fbs = 0;
20388 +
20389 + DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
20390 +
20391 + /* allocate fb_infos */
20392 + for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
20393 + struct fb_info *fbi;
20394 + struct omapfb_info *ofbi;
20395 +
20396 + fbi = framebuffer_alloc(sizeof(struct omapfb_info),
20397 + fbdev->dev);
20398 +
20399 + if (fbi == NULL) {
20400 + dev_err(fbdev->dev,
20401 + "unable to allocate memory for plane info\n");
20402 + return -ENOMEM;
20403 + }
20404 +
20405 + clear_fb_info(fbi);
20406 +
20407 + fbdev->fbs[i] = fbi;
20408 +
20409 + ofbi = FB2OFB(fbi);
20410 + ofbi->fbdev = fbdev;
20411 + ofbi->id = i;
20412 +
20413 + /* assign these early, so that fb alloc can use them */
20414 + ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
20415 + OMAP_DSS_ROT_DMA;
20416 + ofbi->mirror = def_mirror;
20417 +
20418 + fbdev->num_fbs++;
20419 + }
20420 +
20421 + DBG("fb_infos allocated\n");
20422 +
20423 + /* assign overlays for the fbs */
20424 + for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
20425 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
20426 +
20427 + ofbi->overlays[0] = fbdev->overlays[i];
20428 + ofbi->num_overlays = 1;
20429 + }
20430 +
20431 + /* allocate fb memories */
20432 + r = omapfb_allocate_all_fbs(fbdev);
20433 + if (r) {
20434 + dev_err(fbdev->dev, "failed to allocate fbmem\n");
20435 + return r;
20436 + }
20437 +
20438 + DBG("fbmems allocated\n");
20439 +
20440 + /* setup fb_infos */
20441 + for (i = 0; i < fbdev->num_fbs; i++) {
20442 + r = omapfb_fb_init(fbdev, fbdev->fbs[i]);
20443 + if (r) {
20444 + dev_err(fbdev->dev, "failed to setup fb_info\n");
20445 + return r;
20446 + }
20447 + }
20448 +
20449 + DBG("fb_infos initialized\n");
20450 +
20451 + for (i = 0; i < fbdev->num_fbs; i++) {
20452 + r = register_framebuffer(fbdev->fbs[i]);
20453 + if (r != 0) {
20454 + dev_err(fbdev->dev,
20455 + "registering framebuffer %d failed\n", i);
20456 + return r;
20457 + }
20458 + }
20459 +
20460 + DBG("framebuffers registered\n");
20461 +
20462 + for (i = 0; i < fbdev->num_fbs; i++) {
20463 + r = omapfb_apply_changes(fbdev->fbs[i], 1);
20464 + if (r) {
20465 + dev_err(fbdev->dev, "failed to change mode\n");
20466 + return r;
20467 + }
20468 + }
20469 +
20470 + DBG("create sysfs for fbs\n");
20471 + r = omapfb_create_sysfs(fbdev);
20472 + if (r) {
20473 + dev_err(fbdev->dev, "failed to create sysfs entries\n");
20474 + return r;
20475 + }
20476 +
20477 + /* Enable fb0 */
20478 + if (fbdev->num_fbs > 0) {
20479 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
20480 +
20481 + if (ofbi->num_overlays > 0) {
20482 + struct omap_overlay *ovl = ofbi->overlays[0];
20483 +
20484 + r = omapfb_overlay_enable(ovl, 1);
20485 +
20486 + if (r) {
20487 + dev_err(fbdev->dev,
20488 + "failed to enable overlay\n");
20489 + return r;
20490 + }
20491 + }
20492 + }
20493 +
20494 + DBG("create_framebuffers done\n");
20495 +
20496 + return 0;
20497 +}
20498 +
20499 +static int omapfb_mode_to_timings(const char *mode_str,
20500 + struct omap_video_timings *timings, u8 *bpp)
20501 +{
20502 + struct fb_info fbi;
20503 + struct fb_var_screeninfo var;
20504 + struct fb_ops fbops;
20505 + int r;
20506 +
20507 +#ifdef CONFIG_OMAP2_DSS_VENC
20508 + if (strcmp(mode_str, "pal") == 0) {
20509 + *timings = omap_dss_pal_timings;
20510 + *bpp = 0;
20511 + return 0;
20512 + } else if (strcmp(mode_str, "ntsc") == 0) {
20513 + *timings = omap_dss_ntsc_timings;
20514 + *bpp = 0;
20515 + return 0;
20516 + }
20517 +#endif
20518 +
20519 + /* this is quite a hack, but I wanted to use the modedb and for
20520 + * that we need fb_info and var, so we create dummy ones */
20521 +
20522 + memset(&fbi, 0, sizeof(fbi));
20523 + memset(&var, 0, sizeof(var));
20524 + memset(&fbops, 0, sizeof(fbops));
20525 + fbi.fbops = &fbops;
20526 +
20527 + r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24);
20528 +
20529 + if (r != 0) {
20530 + timings->pixel_clock = PICOS2KHZ(var.pixclock);
20531 + timings->hfp = var.left_margin;
20532 + timings->hbp = var.right_margin;
20533 + timings->vfp = var.upper_margin;
20534 + timings->vbp = var.lower_margin;
20535 + timings->hsw = var.hsync_len;
20536 + timings->vsw = var.vsync_len;
20537 + timings->x_res = var.xres;
20538 + timings->y_res = var.yres;
20539 +
20540 + switch (var.bits_per_pixel) {
20541 + case 16:
20542 + *bpp = 16;
20543 + break;
20544 + case 24:
20545 + case 32:
20546 + default:
20547 + *bpp = 24;
20548 + break;
20549 + }
20550 +
20551 + return 0;
20552 + } else {
20553 + return -EINVAL;
20554 + }
20555 +}
20556 +
20557 +static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str)
20558 +{
20559 + int r;
20560 + u8 bpp;
20561 + struct omap_video_timings timings;
20562 +
20563 + r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
20564 + if (r)
20565 + return r;
20566 +
20567 + display->panel.recommended_bpp = bpp;
20568 +
20569 + if (!display->check_timings || !display->set_timings)
20570 + return -EINVAL;
20571 +
20572 + r = display->check_timings(display, &timings);
20573 + if (r)
20574 + return r;
20575 +
20576 + display->set_timings(display, &timings);
20577 +
20578 + return 0;
20579 +}
20580 +
20581 +static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
20582 +{
20583 + char *str, *options, *this_opt;
20584 + int r = 0;
20585 +
20586 + str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL);
20587 + strcpy(str, def_mode);
20588 + options = str;
20589 +
20590 + while (!r && (this_opt = strsep(&options, ",")) != NULL) {
20591 + char *p, *display_str, *mode_str;
20592 + struct omap_dss_device *display;
20593 + int i;
20594 +
20595 + p = strchr(this_opt, ':');
20596 + if (!p) {
20597 + r = -EINVAL;
20598 + break;
20599 + }
20600 +
20601 + *p = 0;
20602 + display_str = this_opt;
20603 + mode_str = p + 1;
20604 +
20605 + display = NULL;
20606 + for (i = 0; i < fbdev->num_displays; ++i) {
20607 + if (strcmp(fbdev->displays[i]->name,
20608 + display_str) == 0) {
20609 + display = fbdev->displays[i];
20610 + break;
20611 + }
20612 + }
20613 +
20614 + if (!display) {
20615 + r = -EINVAL;
20616 + break;
20617 + }
20618 +
20619 + r = omapfb_set_def_mode(display, mode_str);
20620 + if (r)
20621 + break;
20622 + }
20623 +
20624 + kfree(str);
20625 +
20626 + return r;
20627 +}
20628 +
20629 +static int omapfb_probe(struct platform_device *pdev)
20630 +{
20631 + struct omapfb2_device *fbdev = NULL;
20632 + int r = 0;
20633 + int i;
20634 + struct omap_overlay *ovl;
20635 + struct omap_dss_device *def_display;
20636 + struct omap_dss_device *dssdev;
20637 +
20638 + DBG("omapfb_probe\n");
20639 +
20640 + if (pdev->num_resources != 0) {
20641 + dev_err(&pdev->dev, "probed for an unknown device\n");
20642 + r = -ENODEV;
20643 + goto err0;
20644 + }
20645 +
20646 + fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
20647 + if (fbdev == NULL) {
20648 + r = -ENOMEM;
20649 + goto err0;
20650 + }
20651 +
20652 + mutex_init(&fbdev->mtx);
20653 +
20654 + fbdev->dev = &pdev->dev;
20655 + platform_set_drvdata(pdev, fbdev);
20656 +
20657 + fbdev->num_displays = 0;
20658 + dssdev = NULL;
20659 + for_each_dss_dev(dssdev) {
20660 + omap_dss_get_device(dssdev);
20661 + fbdev->displays[fbdev->num_displays++] = dssdev;
20662 + }
20663 +
20664 + if (fbdev->num_displays == 0) {
20665 + dev_err(&pdev->dev, "no displays\n");
20666 + r = -EINVAL;
20667 + goto cleanup;
20668 + }
20669 +
20670 + fbdev->num_overlays = omap_dss_get_num_overlays();
20671 + for (i = 0; i < fbdev->num_overlays; i++)
20672 + fbdev->overlays[i] = omap_dss_get_overlay(i);
20673 +
20674 + fbdev->num_managers = omap_dss_get_num_overlay_managers();
20675 + for (i = 0; i < fbdev->num_managers; i++)
20676 + fbdev->managers[i] = omap_dss_get_overlay_manager(i);
20677 +
20678 + if (def_mode && strlen(def_mode) > 0) {
20679 + if (omapfb_parse_def_modes(fbdev))
20680 + dev_warn(&pdev->dev, "cannot parse default modes\n");
20681 + }
20682 +
20683 + r = omapfb_create_framebuffers(fbdev);
20684 + if (r)
20685 + goto cleanup;
20686 +
20687 + for (i = 0; i < fbdev->num_managers; i++) {
20688 + struct omap_overlay_manager *mgr;
20689 + mgr = fbdev->managers[i];
20690 + r = mgr->apply(mgr);
20691 + if (r)
20692 + dev_warn(fbdev->dev, "failed to apply dispc config\n");
20693 + }
20694 +
20695 + DBG("mgr->apply'ed\n");
20696 +
20697 + /* gfx overlay should be the default one. find a display
20698 + * connected to that, and use it as default display */
20699 + ovl = omap_dss_get_overlay(0);
20700 + if (ovl->manager && ovl->manager->device) {
20701 + def_display = ovl->manager->device;
20702 + } else {
20703 + dev_warn(&pdev->dev, "cannot find default display\n");
20704 + def_display = NULL;
20705 + }
20706 +
20707 + if (def_display) {
20708 + u16 w, h;
20709 + r = def_display->enable(def_display);
20710 + if (r)
20711 + dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
20712 + def_display->name);
20713 +
20714 + /* set the update mode */
20715 + if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
20716 +#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
20717 + if (def_display->enable_te)
20718 + def_display->enable_te(def_display, 1);
20719 + if (def_display->set_update_mode)
20720 + def_display->set_update_mode(def_display,
20721 + OMAP_DSS_UPDATE_AUTO);
20722 +#else /* MANUAL_UPDATE */
20723 + if (def_display->enable_te)
20724 + def_display->enable_te(def_display, 0);
20725 + if (def_display->set_update_mode)
20726 + def_display->set_update_mode(def_display,
20727 + OMAP_DSS_UPDATE_MANUAL);
20728 +
20729 + def_display->get_resolution(def_display, &w, &h);
20730 + def_display->update(def_display, 0, 0, w, h);
20731 +#endif
20732 + } else {
20733 + if (def_display->set_update_mode)
20734 + def_display->set_update_mode(def_display,
20735 + OMAP_DSS_UPDATE_AUTO);
20736 + }
20737 + }
20738 +
20739 + return 0;
20740 +
20741 +cleanup:
20742 + omapfb_free_resources(fbdev);
20743 +err0:
20744 + dev_err(&pdev->dev, "failed to setup omapfb\n");
20745 + return r;
20746 +}
20747 +
20748 +static int omapfb_remove(struct platform_device *pdev)
20749 +{
20750 + struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
20751 +
20752 + /* FIXME: wait till completion of pending events */
20753 +
20754 + omapfb_remove_sysfs(fbdev);
20755 +
20756 + omapfb_free_resources(fbdev);
20757 +
20758 + return 0;
20759 +}
20760 +
20761 +static struct platform_driver omapfb_driver = {
20762 + .probe = omapfb_probe,
20763 + .remove = omapfb_remove,
20764 + .driver = {
20765 + .name = "omapfb",
20766 + .owner = THIS_MODULE,
20767 + },
20768 +};
20769 +
20770 +static int __init omapfb_init(void)
20771 +{
20772 + DBG("omapfb_init\n");
20773 +
20774 + if (platform_driver_register(&omapfb_driver)) {
20775 + printk(KERN_ERR "failed to register omapfb driver\n");
20776 + return -ENODEV;
20777 + }
20778 +
20779 + return 0;
20780 +}
20781 +
20782 +static void __exit omapfb_exit(void)
20783 +{
20784 + DBG("omapfb_exit\n");
20785 + platform_driver_unregister(&omapfb_driver);
20786 +}
20787 +
20788 +module_param_named(mode, def_mode, charp, 0);
20789 +module_param_named(vram, def_vram, charp, 0);
20790 +module_param_named(rotate, def_rotate, int, 0);
20791 +module_param_named(vrfb, def_vrfb, bool, 0);
20792 +module_param_named(mirror, def_mirror, bool, 0);
20793 +
20794 +/* late_initcall to let panel/ctrl drivers loaded first.
20795 + * I guess better option would be a more dynamic approach,
20796 + * so that omapfb reacts to new panels when they are loaded */
20797 +late_initcall(omapfb_init);
20798 +/*module_init(omapfb_init);*/
20799 +module_exit(omapfb_exit);
20800 +
20801 +MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
20802 +MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
20803 +MODULE_LICENSE("GPL v2");
20804 --- /dev/null
20805 +++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
20806 @@ -0,0 +1,507 @@
20807 +/*
20808 + * linux/drivers/video/omap2/omapfb-sysfs.c
20809 + *
20810 + * Copyright (C) 2008 Nokia Corporation
20811 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
20812 + *
20813 + * Some code and ideas taken from drivers/video/omap/ driver
20814 + * by Imre Deak.
20815 + *
20816 + * This program is free software; you can redistribute it and/or modify it
20817 + * under the terms of the GNU General Public License version 2 as published by
20818 + * the Free Software Foundation.
20819 + *
20820 + * This program is distributed in the hope that it will be useful, but WITHOUT
20821 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
20822 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20823 + * more details.
20824 + *
20825 + * You should have received a copy of the GNU General Public License along with
20826 + * this program. If not, see <http://www.gnu.org/licenses/>.
20827 + */
20828 +
20829 +#include <linux/fb.h>
20830 +#include <linux/sysfs.h>
20831 +#include <linux/device.h>
20832 +#include <linux/uaccess.h>
20833 +#include <linux/platform_device.h>
20834 +#include <linux/kernel.h>
20835 +#include <linux/mm.h>
20836 +#include <linux/omapfb.h>
20837 +
20838 +#include <mach/display.h>
20839 +#include <mach/vrfb.h>
20840 +
20841 +#include "omapfb.h"
20842 +
20843 +static ssize_t show_rotate_type(struct device *dev,
20844 + struct device_attribute *attr, char *buf)
20845 +{
20846 + struct fb_info *fbi = dev_get_drvdata(dev);
20847 + struct omapfb_info *ofbi = FB2OFB(fbi);
20848 +
20849 + return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
20850 +}
20851 +
20852 +static ssize_t store_rotate_type(struct device *dev,
20853 + struct device_attribute *attr,
20854 + const char *buf, size_t count)
20855 +{
20856 + struct fb_info *fbi = dev_get_drvdata(dev);
20857 + struct omapfb_info *ofbi = FB2OFB(fbi);
20858 + enum omap_dss_rotation_type rot_type;
20859 + int r;
20860 +
20861 + rot_type = simple_strtoul(buf, NULL, 0);
20862 +
20863 + if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
20864 + return -EINVAL;
20865 +
20866 + lock_fb_info(fbi);
20867 +
20868 + r = 0;
20869 + if (rot_type == ofbi->rotation_type)
20870 + goto out;
20871 +
20872 + if (ofbi->region.size) {
20873 + r = -EBUSY;
20874 + goto out;
20875 + }
20876 +
20877 + ofbi->rotation_type = rot_type;
20878 +
20879 + /*
20880 + * Since the VRAM for this FB is not allocated at the moment we don't
20881 + * need to do any further parameter checking at this point.
20882 + */
20883 +out:
20884 + unlock_fb_info(fbi);
20885 +
20886 + return r ? r : count;
20887 +}
20888 +
20889 +
20890 +static ssize_t show_mirror(struct device *dev,
20891 + struct device_attribute *attr, char *buf)
20892 +{
20893 + struct fb_info *fbi = dev_get_drvdata(dev);
20894 + struct omapfb_info *ofbi = FB2OFB(fbi);
20895 +
20896 + return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror);
20897 +}
20898 +
20899 +static ssize_t store_mirror(struct device *dev,
20900 + struct device_attribute *attr,
20901 + const char *buf, size_t count)
20902 +{
20903 + struct fb_info *fbi = dev_get_drvdata(dev);
20904 + struct omapfb_info *ofbi = FB2OFB(fbi);
20905 + bool mirror;
20906 + int r;
20907 + struct fb_var_screeninfo new_var;
20908 +
20909 + mirror = simple_strtoul(buf, NULL, 0);
20910 +
20911 + if (mirror != 0 && mirror != 1)
20912 + return -EINVAL;
20913 +
20914 + lock_fb_info(fbi);
20915 +
20916 + ofbi->mirror = mirror;
20917 +
20918 + memcpy(&new_var, &fbi->var, sizeof(new_var));
20919 + r = check_fb_var(fbi, &new_var);
20920 + if (r)
20921 + goto out;
20922 + memcpy(&fbi->var, &new_var, sizeof(fbi->var));
20923 +
20924 + set_fb_fix(fbi);
20925 +
20926 + r = omapfb_apply_changes(fbi, 0);
20927 + if (r)
20928 + goto out;
20929 +
20930 + r = count;
20931 +out:
20932 + unlock_fb_info(fbi);
20933 +
20934 + return r;
20935 +}
20936 +
20937 +static ssize_t show_overlays(struct device *dev,
20938 + struct device_attribute *attr, char *buf)
20939 +{
20940 + struct fb_info *fbi = dev_get_drvdata(dev);
20941 + struct omapfb_info *ofbi = FB2OFB(fbi);
20942 + struct omapfb2_device *fbdev = ofbi->fbdev;
20943 + ssize_t l = 0;
20944 + int t;
20945 +
20946 + omapfb_lock(fbdev);
20947 + lock_fb_info(fbi);
20948 +
20949 + for (t = 0; t < ofbi->num_overlays; t++) {
20950 + struct omap_overlay *ovl = ofbi->overlays[t];
20951 + int ovlnum;
20952 +
20953 + for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum)
20954 + if (ovl == fbdev->overlays[ovlnum])
20955 + break;
20956 +
20957 + l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
20958 + t == 0 ? "" : ",", ovlnum);
20959 + }
20960 +
20961 + l += snprintf(buf + l, PAGE_SIZE - l, "\n");
20962 +
20963 + unlock_fb_info(fbi);
20964 + omapfb_unlock(fbdev);
20965 +
20966 + return l;
20967 +}
20968 +
20969 +static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev,
20970 + struct omap_overlay *ovl)
20971 +{
20972 + int i, t;
20973 +
20974 + for (i = 0; i < fbdev->num_fbs; i++) {
20975 + struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
20976 +
20977 + for (t = 0; t < ofbi->num_overlays; t++) {
20978 + if (ofbi->overlays[t] == ovl)
20979 + return ofbi;
20980 + }
20981 + }
20982 +
20983 + return NULL;
20984 +}
20985 +
20986 +static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
20987 + const char *buf, size_t count)
20988 +{
20989 + struct fb_info *fbi = dev_get_drvdata(dev);
20990 + struct omapfb_info *ofbi = FB2OFB(fbi);
20991 + struct omapfb2_device *fbdev = ofbi->fbdev;
20992 + struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB];
20993 + struct omap_overlay *ovl;
20994 + int num_ovls, r, i;
20995 + int len;
20996 + bool added = false;
20997 +
20998 + num_ovls = 0;
20999 +
21000 + len = strlen(buf);
21001 + if (buf[len - 1] == '\n')
21002 + len = len - 1;
21003 +
21004 + omapfb_lock(fbdev);
21005 + lock_fb_info(fbi);
21006 +
21007 + if (len > 0) {
21008 + char *p = (char *)buf;
21009 + int ovlnum;
21010 +
21011 + while (p < buf + len) {
21012 + int found;
21013 + if (num_ovls == OMAPFB_MAX_OVL_PER_FB) {
21014 + r = -EINVAL;
21015 + goto out;
21016 + }
21017 +
21018 + ovlnum = simple_strtoul(p, &p, 0);
21019 + if (ovlnum > fbdev->num_overlays) {
21020 + r = -EINVAL;
21021 + goto out;
21022 + }
21023 +
21024 + found = 0;
21025 + for (i = 0; i < num_ovls; ++i) {
21026 + if (ovls[i] == fbdev->overlays[ovlnum]) {
21027 + found = 1;
21028 + break;
21029 + }
21030 + }
21031 +
21032 + if (!found)
21033 + ovls[num_ovls++] = fbdev->overlays[ovlnum];
21034 +
21035 + p++;
21036 + }
21037 + }
21038 +
21039 + for (i = 0; i < num_ovls; ++i) {
21040 + struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]);
21041 + if (ofbi2 && ofbi2 != ofbi) {
21042 + dev_err(fbdev->dev, "overlay already in use\n");
21043 + r = -EINVAL;
21044 + goto out;
21045 + }
21046 + }
21047 +
21048 + /* detach unused overlays */
21049 + for (i = 0; i < ofbi->num_overlays; ++i) {
21050 + int t, found;
21051 +
21052 + ovl = ofbi->overlays[i];
21053 +
21054 + found = 0;
21055 +
21056 + for (t = 0; t < num_ovls; ++t) {
21057 + if (ovl == ovls[t]) {
21058 + found = 1;
21059 + break;
21060 + }
21061 + }
21062 +
21063 + if (found)
21064 + continue;
21065 +
21066 + DBG("detaching %d\n", ofbi->overlays[i]->id);
21067 +
21068 + omapfb_overlay_enable(ovl, 0);
21069 +
21070 + if (ovl->manager)
21071 + ovl->manager->apply(ovl->manager);
21072 +
21073 + for (t = i + 1; t < ofbi->num_overlays; t++) {
21074 + ofbi->rotation[t-1] = ofbi->rotation[t];
21075 + ofbi->overlays[t-1] = ofbi->overlays[t];
21076 + }
21077 +
21078 + ofbi->num_overlays--;
21079 + i--;
21080 + }
21081 +
21082 + for (i = 0; i < num_ovls; ++i) {
21083 + int t, found;
21084 +
21085 + ovl = ovls[i];
21086 +
21087 + found = 0;
21088 +
21089 + for (t = 0; t < ofbi->num_overlays; ++t) {
21090 + if (ovl == ofbi->overlays[t]) {
21091 + found = 1;
21092 + break;
21093 + }
21094 + }
21095 +
21096 + if (found)
21097 + continue;
21098 + ofbi->rotation[ofbi->num_overlays] = 0;
21099 + ofbi->overlays[ofbi->num_overlays++] = ovl;
21100 +
21101 + added = true;
21102 + }
21103 +
21104 + if (added) {
21105 + r = omapfb_apply_changes(fbi, 0);
21106 + if (r)
21107 + goto out;
21108 + }
21109 +
21110 + r = count;
21111 +out:
21112 + unlock_fb_info(fbi);
21113 + omapfb_unlock(fbdev);
21114 +
21115 + return r;
21116 +}
21117 +
21118 +static ssize_t show_overlays_rotate(struct device *dev,
21119 + struct device_attribute *attr, char *buf)
21120 +{
21121 + struct fb_info *fbi = dev_get_drvdata(dev);
21122 + struct omapfb_info *ofbi = FB2OFB(fbi);
21123 + ssize_t l = 0;
21124 + int t;
21125 +
21126 + lock_fb_info(fbi);
21127 +
21128 + for (t = 0; t < ofbi->num_overlays; t++) {
21129 + l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
21130 + t == 0 ? "" : ",", ofbi->rotation[t]);
21131 + }
21132 +
21133 + l += snprintf(buf + l, PAGE_SIZE - l, "\n");
21134 +
21135 + unlock_fb_info(fbi);
21136 +
21137 + return l;
21138 +}
21139 +
21140 +static ssize_t store_overlays_rotate(struct device *dev,
21141 + struct device_attribute *attr, const char *buf, size_t count)
21142 +{
21143 + struct fb_info *fbi = dev_get_drvdata(dev);
21144 + struct omapfb_info *ofbi = FB2OFB(fbi);
21145 + int num_ovls = 0, r, i;
21146 + int len;
21147 + bool changed = false;
21148 + u8 rotation[OMAPFB_MAX_OVL_PER_FB];
21149 +
21150 + len = strlen(buf);
21151 + if (buf[len - 1] == '\n')
21152 + len = len - 1;
21153 +
21154 + lock_fb_info(fbi);
21155 +
21156 + if (len > 0) {
21157 + char *p = (char *)buf;
21158 +
21159 + while (p < buf + len) {
21160 + int rot;
21161 +
21162 + if (num_ovls == ofbi->num_overlays) {
21163 + r = -EINVAL;
21164 + goto out;
21165 + }
21166 +
21167 + rot = simple_strtoul(p, &p, 0);
21168 + if (rot < 0 || rot > 3) {
21169 + r = -EINVAL;
21170 + goto out;
21171 + }
21172 +
21173 + if (ofbi->rotation[num_ovls] != rot)
21174 + changed = true;
21175 +
21176 + rotation[num_ovls++] = rot;
21177 +
21178 + p++;
21179 + }
21180 + }
21181 +
21182 + if (num_ovls != ofbi->num_overlays) {
21183 + r = -EINVAL;
21184 + goto out;
21185 + }
21186 +
21187 + if (changed) {
21188 + for (i = 0; i < num_ovls; ++i)
21189 + ofbi->rotation[i] = rotation[i];
21190 +
21191 + r = omapfb_apply_changes(fbi, 0);
21192 + if (r)
21193 + goto out;
21194 +
21195 + /* FIXME error handling? */
21196 + }
21197 +
21198 + r = count;
21199 +out:
21200 + unlock_fb_info(fbi);
21201 +
21202 + return r;
21203 +}
21204 +
21205 +static ssize_t show_size(struct device *dev,
21206 + struct device_attribute *attr, char *buf)
21207 +{
21208 + struct fb_info *fbi = dev_get_drvdata(dev);
21209 + struct omapfb_info *ofbi = FB2OFB(fbi);
21210 +
21211 + return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region.size);
21212 +}
21213 +
21214 +static ssize_t store_size(struct device *dev, struct device_attribute *attr,
21215 + const char *buf, size_t count)
21216 +{
21217 + struct fb_info *fbi = dev_get_drvdata(dev);
21218 + struct omapfb_info *ofbi = FB2OFB(fbi);
21219 + unsigned long size;
21220 + int r;
21221 + int i;
21222 +
21223 + size = PAGE_ALIGN(simple_strtoul(buf, NULL, 0));
21224 +
21225 + lock_fb_info(fbi);
21226 +
21227 + for (i = 0; i < ofbi->num_overlays; i++) {
21228 + if (ofbi->overlays[i]->info.enabled) {
21229 + r = -EBUSY;
21230 + goto out;
21231 + }
21232 + }
21233 +
21234 + if (size != ofbi->region.size) {
21235 + r = omapfb_realloc_fbmem(fbi, size, ofbi->region.type);
21236 + if (r) {
21237 + dev_err(dev, "realloc fbmem failed\n");
21238 + goto out;
21239 + }
21240 + }
21241 +
21242 + r = count;
21243 +out:
21244 + unlock_fb_info(fbi);
21245 +
21246 + return r;
21247 +}
21248 +
21249 +static ssize_t show_phys(struct device *dev,
21250 + struct device_attribute *attr, char *buf)
21251 +{
21252 + struct fb_info *fbi = dev_get_drvdata(dev);
21253 + struct omapfb_info *ofbi = FB2OFB(fbi);
21254 +
21255 + return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region.paddr);
21256 +}
21257 +
21258 +static ssize_t show_virt(struct device *dev,
21259 + struct device_attribute *attr, char *buf)
21260 +{
21261 + struct fb_info *fbi = dev_get_drvdata(dev);
21262 + struct omapfb_info *ofbi = FB2OFB(fbi);
21263 +
21264 + return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region.vaddr);
21265 +}
21266 +
21267 +static struct device_attribute omapfb_attrs[] = {
21268 + __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type,
21269 + store_rotate_type),
21270 + __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror),
21271 + __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size),
21272 + __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays),
21273 + __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate,
21274 + store_overlays_rotate),
21275 + __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
21276 + __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
21277 +};
21278 +
21279 +int omapfb_create_sysfs(struct omapfb2_device *fbdev)
21280 +{
21281 + int i;
21282 + int r;
21283 +
21284 + DBG("create sysfs for fbs\n");
21285 + for (i = 0; i < fbdev->num_fbs; i++) {
21286 + int t;
21287 + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) {
21288 + r = device_create_file(fbdev->fbs[i]->dev,
21289 + &omapfb_attrs[t]);
21290 +
21291 + if (r) {
21292 + dev_err(fbdev->dev, "failed to create sysfs "
21293 + "file\n");
21294 + return r;
21295 + }
21296 + }
21297 + }
21298 +
21299 + return 0;
21300 +}
21301 +
21302 +void omapfb_remove_sysfs(struct omapfb2_device *fbdev)
21303 +{
21304 + int i, t;
21305 +
21306 + DBG("remove sysfs for fbs\n");
21307 + for (i = 0; i < fbdev->num_fbs; i++) {
21308 + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++)
21309 + device_remove_file(fbdev->fbs[i]->dev,
21310 + &omapfb_attrs[t]);
21311 + }
21312 +}
21313 +
21314 --- /dev/null
21315 +++ b/drivers/video/omap2/omapfb/omapfb.h
21316 @@ -0,0 +1,146 @@
21317 +/*
21318 + * linux/drivers/video/omap2/omapfb.h
21319 + *
21320 + * Copyright (C) 2008 Nokia Corporation
21321 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
21322 + *
21323 + * Some code and ideas taken from drivers/video/omap/ driver
21324 + * by Imre Deak.
21325 + *
21326 + * This program is free software; you can redistribute it and/or modify it
21327 + * under the terms of the GNU General Public License version 2 as published by
21328 + * the Free Software Foundation.
21329 + *
21330 + * This program is distributed in the hope that it will be useful, but WITHOUT
21331 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21332 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
21333 + * more details.
21334 + *
21335 + * You should have received a copy of the GNU General Public License along with
21336 + * this program. If not, see <http://www.gnu.org/licenses/>.
21337 + */
21338 +
21339 +#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
21340 +#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
21341 +
21342 +#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
21343 +#define DEBUG
21344 +#endif
21345 +
21346 +#include <mach/display.h>
21347 +
21348 +#ifdef DEBUG
21349 +extern unsigned int omapfb_debug;
21350 +#define DBG(format, ...) \
21351 + if (omapfb_debug) \
21352 + printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__)
21353 +#else
21354 +#define DBG(format, ...)
21355 +#endif
21356 +
21357 +#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
21358 +
21359 +/* max number of overlays to which a framebuffer data can be direct */
21360 +#define OMAPFB_MAX_OVL_PER_FB 3
21361 +
21362 +struct omapfb2_mem_region {
21363 + u32 paddr;
21364 + void __iomem *vaddr;
21365 + struct vrfb vrfb;
21366 + unsigned long size;
21367 + u8 type; /* OMAPFB_PLANE_MEM_* */
21368 + bool alloc; /* allocated by the driver */
21369 + bool map; /* kernel mapped by the driver */
21370 +};
21371 +
21372 +/* appended to fb_info */
21373 +struct omapfb_info {
21374 + int id;
21375 + struct omapfb2_mem_region region;
21376 + atomic_t map_count;
21377 + int num_overlays;
21378 + struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
21379 + struct omapfb2_device *fbdev;
21380 + enum omap_dss_rotation_type rotation_type;
21381 + u8 rotation[OMAPFB_MAX_OVL_PER_FB];
21382 + bool mirror;
21383 +};
21384 +
21385 +struct omapfb2_device {
21386 + struct device *dev;
21387 + struct mutex mtx;
21388 +
21389 + u32 pseudo_palette[17];
21390 +
21391 + int state;
21392 +
21393 + unsigned num_fbs;
21394 + struct fb_info *fbs[10];
21395 +
21396 + unsigned num_displays;
21397 + struct omap_dss_device *displays[10];
21398 + unsigned num_overlays;
21399 + struct omap_overlay *overlays[10];
21400 + unsigned num_managers;
21401 + struct omap_overlay_manager *managers[10];
21402 +};
21403 +
21404 +struct omapfb_colormode {
21405 + enum omap_color_mode dssmode;
21406 + u32 bits_per_pixel;
21407 + u32 nonstd;
21408 + struct fb_bitfield red;
21409 + struct fb_bitfield green;
21410 + struct fb_bitfield blue;
21411 + struct fb_bitfield transp;
21412 +};
21413 +
21414 +void set_fb_fix(struct fb_info *fbi);
21415 +int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
21416 +int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
21417 +int omapfb_apply_changes(struct fb_info *fbi, int init);
21418 +
21419 +int omapfb_create_sysfs(struct omapfb2_device *fbdev);
21420 +void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
21421 +
21422 +int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
21423 +
21424 +int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
21425 + struct fb_var_screeninfo *var);
21426 +
21427 +/* find the display connected to this fb, if any */
21428 +static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
21429 +{
21430 + struct omapfb_info *ofbi = FB2OFB(fbi);
21431 + int i;
21432 +
21433 + /* XXX: returns the display connected to first attached overlay */
21434 + for (i = 0; i < ofbi->num_overlays; i++) {
21435 + if (ofbi->overlays[i]->manager)
21436 + return ofbi->overlays[i]->manager->device;
21437 + }
21438 +
21439 + return NULL;
21440 +}
21441 +
21442 +static inline void omapfb_lock(struct omapfb2_device *fbdev)
21443 +{
21444 + mutex_lock(&fbdev->mtx);
21445 +}
21446 +
21447 +static inline void omapfb_unlock(struct omapfb2_device *fbdev)
21448 +{
21449 + mutex_unlock(&fbdev->mtx);
21450 +}
21451 +
21452 +static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
21453 + int enable)
21454 +{
21455 + struct omap_overlay_info info;
21456 +
21457 + ovl->get_overlay_info(ovl, &info);
21458 + info.enabled = enable;
21459 + return ovl->set_overlay_info(ovl, &info);
21460 +}
21461 +
21462 +#endif
21463 --- /dev/null
21464 +++ b/drivers/video/omap2/vram.c
21465 @@ -0,0 +1,655 @@
21466 +/*
21467 + * VRAM manager for OMAP
21468 + *
21469 + * Copyright (C) 2009 Nokia Corporation
21470 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
21471 + *
21472 + * This program is free software; you can redistribute it and/or modify
21473 + * it under the terms of the GNU General Public License version 2 as
21474 + * published by the Free Software Foundation.
21475 + *
21476 + * This program is distributed in the hope that it will be useful, but
21477 + * WITHOUT ANY WARRANTY; without even the implied warranty of
21478 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21479 + * General Public License for more details.
21480 + *
21481 + * You should have received a copy of the GNU General Public License along
21482 + * with this program; if not, write to the Free Software Foundation, Inc.,
21483 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21484 + */
21485 +
21486 +/*#define DEBUG*/
21487 +
21488 +#include <linux/kernel.h>
21489 +#include <linux/mm.h>
21490 +#include <linux/list.h>
21491 +#include <linux/seq_file.h>
21492 +#include <linux/bootmem.h>
21493 +#include <linux/completion.h>
21494 +#include <linux/debugfs.h>
21495 +#include <linux/jiffies.h>
21496 +#include <linux/module.h>
21497 +
21498 +#include <asm/setup.h>
21499 +
21500 +#include <mach/sram.h>
21501 +#include <mach/vram.h>
21502 +#include <mach/dma.h>
21503 +
21504 +#ifdef DEBUG
21505 +#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__)
21506 +#else
21507 +#define DBG(format, ...)
21508 +#endif
21509 +
21510 +#define OMAP2_SRAM_START 0x40200000
21511 +/* Maximum size, in reality this is smaller if SRAM is partially locked. */
21512 +#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */
21513 +
21514 +/* postponed regions are used to temporarily store region information at boot
21515 + * time when we cannot yet allocate the region list */
21516 +#define MAX_POSTPONED_REGIONS 10
21517 +
21518 +static bool vram_initialized;
21519 +static int postponed_cnt;
21520 +static struct {
21521 + unsigned long paddr;
21522 + size_t size;
21523 +} postponed_regions[MAX_POSTPONED_REGIONS];
21524 +
21525 +struct vram_alloc {
21526 + struct list_head list;
21527 + unsigned long paddr;
21528 + unsigned pages;
21529 +};
21530 +
21531 +struct vram_region {
21532 + struct list_head list;
21533 + struct list_head alloc_list;
21534 + unsigned long paddr;
21535 + unsigned pages;
21536 +};
21537 +
21538 +static DEFINE_MUTEX(region_mutex);
21539 +static LIST_HEAD(region_list);
21540 +
21541 +static inline int region_mem_type(unsigned long paddr)
21542 +{
21543 + if (paddr >= OMAP2_SRAM_START &&
21544 + paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE)
21545 + return OMAP_VRAM_MEMTYPE_SRAM;
21546 + else
21547 + return OMAP_VRAM_MEMTYPE_SDRAM;
21548 +}
21549 +
21550 +static struct vram_region *omap_vram_create_region(unsigned long paddr,
21551 + unsigned pages)
21552 +{
21553 + struct vram_region *rm;
21554 +
21555 + rm = kzalloc(sizeof(*rm), GFP_KERNEL);
21556 +
21557 + if (rm) {
21558 + INIT_LIST_HEAD(&rm->alloc_list);
21559 + rm->paddr = paddr;
21560 + rm->pages = pages;
21561 + }
21562 +
21563 + return rm;
21564 +}
21565 +
21566 +#if 0
21567 +static void omap_vram_free_region(struct vram_region *vr)
21568 +{
21569 + list_del(&vr->list);
21570 + kfree(vr);
21571 +}
21572 +#endif
21573 +
21574 +static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr,
21575 + unsigned long paddr, unsigned pages)
21576 +{
21577 + struct vram_alloc *va;
21578 + struct vram_alloc *new;
21579 +
21580 + new = kzalloc(sizeof(*va), GFP_KERNEL);
21581 +
21582 + if (!new)
21583 + return NULL;
21584 +
21585 + new->paddr = paddr;
21586 + new->pages = pages;
21587 +
21588 + list_for_each_entry(va, &vr->alloc_list, list) {
21589 + if (va->paddr > new->paddr)
21590 + break;
21591 + }
21592 +
21593 + list_add_tail(&new->list, &va->list);
21594 +
21595 + return new;
21596 +}
21597 +
21598 +static void omap_vram_free_allocation(struct vram_alloc *va)
21599 +{
21600 + list_del(&va->list);
21601 + kfree(va);
21602 +}
21603 +
21604 +int omap_vram_add_region(unsigned long paddr, size_t size)
21605 +{
21606 + struct vram_region *rm;
21607 + unsigned pages;
21608 +
21609 + if (vram_initialized) {
21610 + DBG("adding region paddr %08lx size %d\n",
21611 + paddr, size);
21612 +
21613 + size &= PAGE_MASK;
21614 + pages = size >> PAGE_SHIFT;
21615 +
21616 + rm = omap_vram_create_region(paddr, pages);
21617 + if (rm == NULL)
21618 + return -ENOMEM;
21619 +
21620 + list_add(&rm->list, &region_list);
21621 + } else {
21622 + if (postponed_cnt == MAX_POSTPONED_REGIONS)
21623 + return -ENOMEM;
21624 +
21625 + postponed_regions[postponed_cnt].paddr = paddr;
21626 + postponed_regions[postponed_cnt].size = size;
21627 +
21628 + ++postponed_cnt;
21629 + }
21630 + return 0;
21631 +}
21632 +
21633 +int omap_vram_free(unsigned long paddr, size_t size)
21634 +{
21635 + struct vram_region *rm;
21636 + struct vram_alloc *alloc;
21637 + unsigned start, end;
21638 +
21639 + DBG("free mem paddr %08lx size %d\n", paddr, size);
21640 +
21641 + size = PAGE_ALIGN(size);
21642 +
21643 + mutex_lock(&region_mutex);
21644 +
21645 + list_for_each_entry(rm, &region_list, list) {
21646 + list_for_each_entry(alloc, &rm->alloc_list, list) {
21647 + start = alloc->paddr;
21648 + end = alloc->paddr + (alloc->pages >> PAGE_SHIFT);
21649 +
21650 + if (start >= paddr && end < paddr + size)
21651 + goto found;
21652 + }
21653 + }
21654 +
21655 + mutex_unlock(&region_mutex);
21656 + return -EINVAL;
21657 +
21658 +found:
21659 + omap_vram_free_allocation(alloc);
21660 +
21661 + mutex_unlock(&region_mutex);
21662 + return 0;
21663 +}
21664 +EXPORT_SYMBOL(omap_vram_free);
21665 +
21666 +static int _omap_vram_reserve(unsigned long paddr, unsigned pages)
21667 +{
21668 + struct vram_region *rm;
21669 + struct vram_alloc *alloc;
21670 + size_t size;
21671 +
21672 + size = pages << PAGE_SHIFT;
21673 +
21674 + list_for_each_entry(rm, &region_list, list) {
21675 + unsigned long start, end;
21676 +
21677 + DBG("checking region %lx %d\n", rm->paddr, rm->pages);
21678 +
21679 + if (region_mem_type(rm->paddr) != region_mem_type(paddr))
21680 + continue;
21681 +
21682 + start = rm->paddr;
21683 + end = start + (rm->pages << PAGE_SHIFT) - 1;
21684 + if (start > paddr || end < paddr + size - 1)
21685 + continue;
21686 +
21687 + DBG("block ok, checking allocs\n");
21688 +
21689 + list_for_each_entry(alloc, &rm->alloc_list, list) {
21690 + end = alloc->paddr - 1;
21691 +
21692 + if (start <= paddr && end >= paddr + size - 1)
21693 + goto found;
21694 +
21695 + start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
21696 + }
21697 +
21698 + end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1;
21699 +
21700 + if (!(start <= paddr && end >= paddr + size - 1))
21701 + continue;
21702 +found:
21703 + DBG("found area start %lx, end %lx\n", start, end);
21704 +
21705 + if (omap_vram_create_allocation(rm, paddr, pages) == NULL)
21706 + return -ENOMEM;
21707 +
21708 + return 0;
21709 + }
21710 +
21711 + return -ENOMEM;
21712 +}
21713 +
21714 +int omap_vram_reserve(unsigned long paddr, size_t size)
21715 +{
21716 + unsigned pages;
21717 + int r;
21718 +
21719 + DBG("reserve mem paddr %08lx size %d\n", paddr, size);
21720 +
21721 + size = PAGE_ALIGN(size);
21722 + pages = size >> PAGE_SHIFT;
21723 +
21724 + mutex_lock(&region_mutex);
21725 +
21726 + r = _omap_vram_reserve(paddr, pages);
21727 +
21728 + mutex_unlock(&region_mutex);
21729 +
21730 + return r;
21731 +}
21732 +EXPORT_SYMBOL(omap_vram_reserve);
21733 +
21734 +static void _omap_vram_dma_cb(int lch, u16 ch_status, void *data)
21735 +{
21736 + struct completion *compl = data;
21737 + complete(compl);
21738 +}
21739 +
21740 +static int _omap_vram_clear(u32 paddr, unsigned pages)
21741 +{
21742 + struct completion compl;
21743 + unsigned elem_count;
21744 + unsigned frame_count;
21745 + int r;
21746 + int lch;
21747 +
21748 + init_completion(&compl);
21749 +
21750 + r = omap_request_dma(OMAP_DMA_NO_DEVICE, "VRAM DMA",
21751 + _omap_vram_dma_cb,
21752 + &compl, &lch);
21753 + if (r) {
21754 + pr_err("VRAM: request_dma failed for memory clear\n");
21755 + return -EBUSY;
21756 + }
21757 +
21758 + elem_count = pages * PAGE_SIZE / 4;
21759 + frame_count = 1;
21760 +
21761 + omap_set_dma_transfer_params(lch, OMAP_DMA_DATA_TYPE_S32,
21762 + elem_count, frame_count,
21763 + OMAP_DMA_SYNC_ELEMENT,
21764 + 0, 0);
21765 +
21766 + omap_set_dma_dest_params(lch, 0, OMAP_DMA_AMODE_POST_INC,
21767 + paddr, 0, 0);
21768 +
21769 + omap_set_dma_color_mode(lch, OMAP_DMA_CONSTANT_FILL, 0x000000);
21770 +
21771 + omap_start_dma(lch);
21772 +
21773 + if (wait_for_completion_timeout(&compl, msecs_to_jiffies(1000)) == 0) {
21774 + omap_stop_dma(lch);
21775 + pr_err("VRAM: dma timeout while clearing memory\n");
21776 + r = -EIO;
21777 + goto err;
21778 + }
21779 +
21780 + r = 0;
21781 +err:
21782 + omap_free_dma(lch);
21783 +
21784 + return r;
21785 +}
21786 +
21787 +static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr)
21788 +{
21789 + struct vram_region *rm;
21790 + struct vram_alloc *alloc;
21791 +
21792 + list_for_each_entry(rm, &region_list, list) {
21793 + unsigned long start, end;
21794 +
21795 + DBG("checking region %lx %d\n", rm->paddr, rm->pages);
21796 +
21797 + if (region_mem_type(rm->paddr) != mtype)
21798 + continue;
21799 +
21800 + start = rm->paddr;
21801 +
21802 + list_for_each_entry(alloc, &rm->alloc_list, list) {
21803 + end = alloc->paddr;
21804 +
21805 + if (end - start >= pages << PAGE_SHIFT)
21806 + goto found;
21807 +
21808 + start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
21809 + }
21810 +
21811 + end = rm->paddr + (rm->pages << PAGE_SHIFT);
21812 +found:
21813 + if (end - start < pages << PAGE_SHIFT)
21814 + continue;
21815 +
21816 + DBG("found %lx, end %lx\n", start, end);
21817 +
21818 + alloc = omap_vram_create_allocation(rm, start, pages);
21819 + if (alloc == NULL)
21820 + return -ENOMEM;
21821 +
21822 + *paddr = start;
21823 +
21824 + _omap_vram_clear(start, pages);
21825 +
21826 + return 0;
21827 + }
21828 +
21829 + return -ENOMEM;
21830 +}
21831 +
21832 +int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr)
21833 +{
21834 + unsigned pages;
21835 + int r;
21836 +
21837 + BUG_ON(mtype > OMAP_VRAM_MEMTYPE_MAX || !size);
21838 +
21839 + DBG("alloc mem type %d size %d\n", mtype, size);
21840 +
21841 + size = PAGE_ALIGN(size);
21842 + pages = size >> PAGE_SHIFT;
21843 +
21844 + mutex_lock(&region_mutex);
21845 +
21846 + r = _omap_vram_alloc(mtype, pages, paddr);
21847 +
21848 + mutex_unlock(&region_mutex);
21849 +
21850 + return r;
21851 +}
21852 +EXPORT_SYMBOL(omap_vram_alloc);
21853 +
21854 +void omap_vram_get_info(unsigned long *vram,
21855 + unsigned long *free_vram,
21856 + unsigned long *largest_free_block)
21857 +{
21858 + struct vram_region *vr;
21859 + struct vram_alloc *va;
21860 +
21861 + *vram = 0;
21862 + *free_vram = 0;
21863 + *largest_free_block = 0;
21864 +
21865 + mutex_lock(&region_mutex);
21866 +
21867 + list_for_each_entry(vr, &region_list, list) {
21868 + unsigned free;
21869 + unsigned long pa;
21870 +
21871 + pa = vr->paddr;
21872 + *vram += vr->pages << PAGE_SHIFT;
21873 +
21874 + list_for_each_entry(va, &vr->alloc_list, list) {
21875 + free = va->paddr - pa;
21876 + *free_vram += free;
21877 + if (free > *largest_free_block)
21878 + *largest_free_block = free;
21879 + pa = va->paddr + (va->pages << PAGE_SHIFT);
21880 + }
21881 +
21882 + free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa;
21883 + *free_vram += free;
21884 + if (free > *largest_free_block)
21885 + *largest_free_block = free;
21886 + }
21887 +
21888 + mutex_unlock(&region_mutex);
21889 +}
21890 +EXPORT_SYMBOL(omap_vram_get_info);
21891 +
21892 +#if defined(CONFIG_DEBUG_FS)
21893 +static int vram_debug_show(struct seq_file *s, void *unused)
21894 +{
21895 + struct vram_region *vr;
21896 + struct vram_alloc *va;
21897 + unsigned size;
21898 +
21899 + mutex_lock(&region_mutex);
21900 +
21901 + list_for_each_entry(vr, &region_list, list) {
21902 + size = vr->pages << PAGE_SHIFT;
21903 + seq_printf(s, "%08lx-%08lx (%d bytes)\n",
21904 + vr->paddr, vr->paddr + size - 1,
21905 + size);
21906 +
21907 + list_for_each_entry(va, &vr->alloc_list, list) {
21908 + size = va->pages << PAGE_SHIFT;
21909 + seq_printf(s, " %08lx-%08lx (%d bytes)\n",
21910 + va->paddr, va->paddr + size - 1,
21911 + size);
21912 + }
21913 + }
21914 +
21915 + mutex_unlock(&region_mutex);
21916 +
21917 + return 0;
21918 +}
21919 +
21920 +static int vram_debug_open(struct inode *inode, struct file *file)
21921 +{
21922 + return single_open(file, vram_debug_show, inode->i_private);
21923 +}
21924 +
21925 +static const struct file_operations vram_debug_fops = {
21926 + .open = vram_debug_open,
21927 + .read = seq_read,
21928 + .llseek = seq_lseek,
21929 + .release = single_release,
21930 +};
21931 +
21932 +static int __init omap_vram_create_debugfs(void)
21933 +{
21934 + struct dentry *d;
21935 +
21936 + d = debugfs_create_file("vram", S_IRUGO, NULL,
21937 + NULL, &vram_debug_fops);
21938 + if (IS_ERR(d))
21939 + return PTR_ERR(d);
21940 +
21941 + return 0;
21942 +}
21943 +#endif
21944 +
21945 +static __init int omap_vram_init(void)
21946 +{
21947 + int i;
21948 +
21949 + vram_initialized = 1;
21950 +
21951 + for (i = 0; i < postponed_cnt; i++)
21952 + omap_vram_add_region(postponed_regions[i].paddr,
21953 + postponed_regions[i].size);
21954 +
21955 +#ifdef CONFIG_DEBUG_FS
21956 + if (omap_vram_create_debugfs())
21957 + pr_err("VRAM: Failed to create debugfs file\n");
21958 +#endif
21959 +
21960 + return 0;
21961 +}
21962 +
21963 +arch_initcall(omap_vram_init);
21964 +
21965 +/* boottime vram alloc stuff */
21966 +
21967 +/* set from board file */
21968 +static u32 omap_vram_sram_start __initdata;
21969 +static u32 omap_vram_sram_size __initdata;
21970 +
21971 +/* set from board file */
21972 +static u32 omap_vram_sdram_start __initdata;
21973 +static u32 omap_vram_sdram_size __initdata;
21974 +
21975 +/* set from kernel cmdline */
21976 +static u32 omap_vram_def_sdram_size __initdata;
21977 +static u32 omap_vram_def_sdram_start __initdata;
21978 +
21979 +static void __init omap_vram_early_vram(char **p)
21980 +{
21981 + omap_vram_def_sdram_size = memparse(*p, p);
21982 + if (**p == ',')
21983 + omap_vram_def_sdram_start = simple_strtoul((*p) + 1, p, 16);
21984 +}
21985 +__early_param("vram=", omap_vram_early_vram);
21986 +
21987 +/*
21988 + * Called from map_io. We need to call to this early enough so that we
21989 + * can reserve the fixed SDRAM regions before VM could get hold of them.
21990 + */
21991 +void __init omap_vram_reserve_sdram(void)
21992 +{
21993 + struct bootmem_data *bdata;
21994 + unsigned long sdram_start, sdram_size;
21995 + u32 paddr;
21996 + u32 size = 0;
21997 +
21998 + /* cmdline arg overrides the board file definition */
21999 + if (omap_vram_def_sdram_size) {
22000 + size = omap_vram_def_sdram_size;
22001 + paddr = omap_vram_def_sdram_start;
22002 + }
22003 +
22004 + if (!size) {
22005 + size = omap_vram_sdram_size;
22006 + paddr = omap_vram_sdram_start;
22007 + }
22008 +
22009 +#ifdef CONFIG_OMAP2_VRAM_SIZE
22010 + if (!size) {
22011 + size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024;
22012 + paddr = 0;
22013 + }
22014 +#endif
22015 +
22016 + if (!size)
22017 + return;
22018 +
22019 + size = PAGE_ALIGN(size);
22020 +
22021 + bdata = NODE_DATA(0)->bdata;
22022 + sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
22023 + sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
22024 +
22025 + if (paddr) {
22026 + if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
22027 + paddr + size > sdram_start + sdram_size) {
22028 + pr_err("Illegal SDRAM region for VRAM\n");
22029 + return;
22030 + }
22031 +
22032 + if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) {
22033 + pr_err("FB: failed to reserve VRAM\n");
22034 + return;
22035 + }
22036 + } else {
22037 + if (size > sdram_size) {
22038 + pr_err("Illegal SDRAM size for VRAM\n");
22039 + return;
22040 + }
22041 +
22042 + paddr = virt_to_phys(alloc_bootmem_pages(size));
22043 + BUG_ON(paddr & ~PAGE_MASK);
22044 + }
22045 +
22046 + omap_vram_add_region(paddr, size);
22047 +
22048 + pr_info("Reserving %u bytes SDRAM for VRAM\n", size);
22049 +}
22050 +
22051 +/*
22052 + * Called at sram init time, before anything is pushed to the SRAM stack.
22053 + * Because of the stack scheme, we will allocate everything from the
22054 + * start of the lowest address region to the end of SRAM. This will also
22055 + * include padding for page alignment and possible holes between regions.
22056 + *
22057 + * As opposed to the SDRAM case, we'll also do any dynamic allocations at
22058 + * this point, since the driver built as a module would have problem with
22059 + * freeing / reallocating the regions.
22060 + */
22061 +unsigned long __init omap_vram_reserve_sram(unsigned long sram_pstart,
22062 + unsigned long sram_vstart,
22063 + unsigned long sram_size,
22064 + unsigned long pstart_avail,
22065 + unsigned long size_avail)
22066 +{
22067 + unsigned long pend_avail;
22068 + unsigned long reserved;
22069 + u32 paddr;
22070 + u32 size;
22071 +
22072 + paddr = omap_vram_sram_start;
22073 + size = omap_vram_sram_size;
22074 +
22075 + if (!size)
22076 + return 0;
22077 +
22078 + reserved = 0;
22079 + pend_avail = pstart_avail + size_avail;
22080 +
22081 + if (!paddr) {
22082 + /* Dynamic allocation */
22083 + if ((size_avail & PAGE_MASK) < size) {
22084 + pr_err("Not enough SRAM for VRAM\n");
22085 + return 0;
22086 + }
22087 + size_avail = (size_avail - size) & PAGE_MASK;
22088 + paddr = pstart_avail + size_avail;
22089 + }
22090 +
22091 + if (paddr < sram_pstart ||
22092 + paddr + size > sram_pstart + sram_size) {
22093 + pr_err("Illegal SRAM region for VRAM\n");
22094 + return 0;
22095 + }
22096 +
22097 + /* Reserve everything above the start of the region. */
22098 + if (pend_avail - paddr > reserved)
22099 + reserved = pend_avail - paddr;
22100 + size_avail = pend_avail - reserved - pstart_avail;
22101 +
22102 + omap_vram_add_region(paddr, size);
22103 +
22104 + if (reserved)
22105 + pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved);
22106 +
22107 + return reserved;
22108 +}
22109 +
22110 +void __init omap_vram_set_sdram_vram(u32 size, u32 start)
22111 +{
22112 + omap_vram_sdram_start = start;
22113 + omap_vram_sdram_size = size;
22114 +}
22115 +
22116 +void __init omap_vram_set_sram_vram(u32 size, u32 start)
22117 +{
22118 + omap_vram_sram_start = start;
22119 + omap_vram_sram_size = size;
22120 +}
22121 --- /dev/null
22122 +++ b/drivers/video/omap2/vrfb.c
22123 @@ -0,0 +1,277 @@
22124 +/*
22125 + * VRFB Rotation Engine
22126 + *
22127 + * Copyright (C) 2009 Nokia Corporation
22128 + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
22129 + *
22130 + * This program is free software; you can redistribute it and/or modify
22131 + * it under the terms of the GNU General Public License version 2 as
22132 + * published by the Free Software Foundation.
22133 + *
22134 + * This program is distributed in the hope that it will be useful, but
22135 + * WITHOUT ANY WARRANTY; without even the implied warranty of
22136 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22137 + * General Public License for more details.
22138 + *
22139 + * You should have received a copy of the GNU General Public License along
22140 + * with this program; if not, write to the Free Software Foundation, Inc.,
22141 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22142 + */
22143 +
22144 +#include <linux/kernel.h>
22145 +#include <linux/module.h>
22146 +#include <linux/ioport.h>
22147 +#include <linux/io.h>
22148 +#include <linux/bitops.h>
22149 +#include <linux/mutex.h>
22150 +
22151 +#include <mach/io.h>
22152 +#include <mach/vrfb.h>
22153 +#include <mach/sdrc.h>
22154 +/*#define DEBUG*/
22155 +
22156 +#ifdef DEBUG
22157 +#define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__)
22158 +#else
22159 +#define DBG(format, ...)
22160 +#endif
22161 +
22162 +#define SMS_ROT_VIRT_BASE(context, rot) \
22163 + (((context >= 4) ? 0xD0000000 : 0x70000000) \
22164 + + (0x4000000 * (context)) \
22165 + + (0x1000000 * (rot)))
22166 +
22167 +#define OMAP_VRFB_SIZE (2048 * 2048 * 4)
22168 +
22169 +#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */
22170 +#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */
22171 +#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP)
22172 +#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP)
22173 +#define SMS_IMAGEHEIGHT_OFFSET 16
22174 +#define SMS_IMAGEWIDTH_OFFSET 0
22175 +#define SMS_PH_OFFSET 8
22176 +#define SMS_PW_OFFSET 4
22177 +#define SMS_PS_OFFSET 0
22178 +
22179 +#define VRFB_NUM_CTXS 12
22180 +/* bitmap of reserved contexts */
22181 +static unsigned long ctx_map;
22182 +/* bitmap of contexts for which we have to keep the HW context valid */
22183 +static unsigned long ctx_map_active;
22184 +
22185 +static DEFINE_MUTEX(ctx_lock);
22186 +
22187 +/*
22188 + * Access to this happens from client drivers or the PM core after wake-up.
22189 + * For the first case we require locking at the driver level, for the second
22190 + * we don't need locking, since no drivers will run until after the wake-up
22191 + * has finished.
22192 + */
22193 +static struct {
22194 + u32 physical_ba;
22195 + u32 control;
22196 + u32 size;
22197 +} vrfb_hw_context[VRFB_NUM_CTXS];
22198 +
22199 +static inline void restore_hw_context(int ctx)
22200 +{
22201 + omap2_sms_write_rot_control(vrfb_hw_context[ctx].control, ctx);
22202 + omap2_sms_write_rot_size(vrfb_hw_context[ctx].size, ctx);
22203 + omap2_sms_write_rot_physical_ba(vrfb_hw_context[ctx].physical_ba, ctx);
22204 +}
22205 +
22206 +void omap_vrfb_restore_context(void)
22207 +{
22208 + int i;
22209 + unsigned long map = ctx_map_active;
22210 +
22211 + for (i = ffs(map); i; i = ffs(map)) {
22212 + /* i=1..32 */
22213 + i--;
22214 + map &= ~(1 << i);
22215 + restore_hw_context(i);
22216 + }
22217 +}
22218 +
22219 +void omap_vrfb_adjust_size(u16 *width, u16 *height,
22220 + u8 bytespp)
22221 +{
22222 + *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
22223 + *height = ALIGN(*height, VRFB_PAGE_HEIGHT);
22224 +}
22225 +EXPORT_SYMBOL(omap_vrfb_adjust_size);
22226 +
22227 +void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
22228 + u16 width, u16 height,
22229 + unsigned bytespp, bool yuv_mode)
22230 +{
22231 + unsigned pixel_size_exp;
22232 + u16 vrfb_width;
22233 + u16 vrfb_height;
22234 + u8 ctx = vrfb->context;
22235 + u32 size;
22236 + u32 control;
22237 +
22238 + DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d)\n", ctx, paddr,
22239 + width, height, color_mode);
22240 +
22241 + /* For YUV2 and UYVY modes VRFB needs to handle pixels a bit
22242 + * differently. See TRM. */
22243 + if (yuv_mode) {
22244 + bytespp *= 2;
22245 + width /= 2;
22246 + }
22247 +
22248 + if (bytespp == 4)
22249 + pixel_size_exp = 2;
22250 + else if (bytespp == 2)
22251 + pixel_size_exp = 1;
22252 + else
22253 + BUG();
22254 +
22255 + vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
22256 + vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT);
22257 +
22258 + DBG("vrfb w %u, h %u bytespp %d\n", vrfb_width, vrfb_height, bytespp);
22259 +
22260 + size = vrfb_width << SMS_IMAGEWIDTH_OFFSET;
22261 + size |= vrfb_height << SMS_IMAGEHEIGHT_OFFSET;
22262 +
22263 + control = pixel_size_exp << SMS_PS_OFFSET;
22264 + control |= VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET;
22265 + control |= VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET;
22266 +
22267 + vrfb_hw_context[ctx].physical_ba = paddr;
22268 + vrfb_hw_context[ctx].size = size;
22269 + vrfb_hw_context[ctx].control = control;
22270 +
22271 + omap2_sms_write_rot_physical_ba(paddr, ctx);
22272 + omap2_sms_write_rot_size(size, ctx);
22273 + omap2_sms_write_rot_control(control, ctx);
22274 +
22275 + DBG("vrfb offset pixels %d, %d\n",
22276 + vrfb_width - width, vrfb_height - height);
22277 +
22278 + vrfb->xoffset = vrfb_width - width;
22279 + vrfb->yoffset = vrfb_height - height;
22280 + vrfb->bytespp = bytespp;
22281 +}
22282 +EXPORT_SYMBOL(omap_vrfb_setup);
22283 +
22284 +void omap_vrfb_release_ctx(struct vrfb *vrfb)
22285 +{
22286 + int rot;
22287 + int ctx = vrfb->context;
22288 +
22289 + if (ctx == 0xff)
22290 + return;
22291 +
22292 + DBG("release ctx %d\n", ctx);
22293 +
22294 + mutex_lock(&ctx_lock);
22295 +
22296 + BUG_ON(!(ctx_map & (1 << ctx)));
22297 +
22298 + clear_bit(ctx, &ctx_map_active);
22299 + clear_bit(ctx, &ctx_map);
22300 +
22301 + for (rot = 0; rot < 4; ++rot) {
22302 + if (vrfb->paddr[rot]) {
22303 + release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE);
22304 + vrfb->paddr[rot] = 0;
22305 + }
22306 + }
22307 +
22308 + vrfb->context = 0xff;
22309 +
22310 + mutex_unlock(&ctx_lock);
22311 +}
22312 +EXPORT_SYMBOL(omap_vrfb_release_ctx);
22313 +
22314 +int omap_vrfb_request_ctx(struct vrfb *vrfb)
22315 +{
22316 + int rot;
22317 + u32 paddr;
22318 + u8 ctx;
22319 + int r;
22320 +
22321 + DBG("request ctx\n");
22322 +
22323 + mutex_lock(&ctx_lock);
22324 +
22325 + for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx)
22326 + if ((ctx_map & (1 << ctx)) == 0)
22327 + break;
22328 +
22329 + if (ctx == VRFB_NUM_CTXS) {
22330 + pr_err("vrfb: no free contexts\n");
22331 + r = -EBUSY;
22332 + goto out;
22333 + }
22334 +
22335 + DBG("found free ctx %d\n", ctx);
22336 +
22337 + set_bit(ctx, &ctx_map);
22338 + WARN_ON(ctx_map_active & (1 << ctx));
22339 + set_bit(ctx, &ctx_map_active);
22340 +
22341 + memset(vrfb, 0, sizeof(*vrfb));
22342 +
22343 + vrfb->context = ctx;
22344 +
22345 + for (rot = 0; rot < 4; ++rot) {
22346 + paddr = SMS_ROT_VIRT_BASE(ctx, rot);
22347 + if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) {
22348 + pr_err("vrfb: failed to reserve VRFB "
22349 + "area for ctx %d, rotation %d\n",
22350 + ctx, rot * 90);
22351 + omap_vrfb_release_ctx(vrfb);
22352 + r = -ENOMEM;
22353 + goto out;
22354 + }
22355 +
22356 + vrfb->paddr[rot] = paddr;
22357 +
22358 + DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]);
22359 + }
22360 +
22361 + r = 0;
22362 +out:
22363 + mutex_unlock(&ctx_lock);
22364 + return r;
22365 +}
22366 +EXPORT_SYMBOL(omap_vrfb_request_ctx);
22367 +
22368 +void omap_vrfb_suspend_ctx(struct vrfb *vrfb)
22369 +{
22370 + DBG("suspend ctx %d\n", vrfb->context);
22371 + mutex_lock(&ctx_lock);
22372 +
22373 + BUG_ON(vrfb->context >= VRFB_NUM_CTXS);
22374 + BUG_ON(!((1 << vrfb->context) & ctx_map_active));
22375 +
22376 + clear_bit(vrfb->context, &ctx_map_active);
22377 + mutex_unlock(&ctx_lock);
22378 +}
22379 +EXPORT_SYMBOL(omap_vrfb_suspend_ctx);
22380 +
22381 +void omap_vrfb_resume_ctx(struct vrfb *vrfb)
22382 +{
22383 + DBG("resume ctx %d\n", vrfb->context);
22384 + mutex_lock(&ctx_lock);
22385 +
22386 + BUG_ON(vrfb->context >= VRFB_NUM_CTXS);
22387 + BUG_ON((1 << vrfb->context) & ctx_map_active);
22388 +
22389 + /*
22390 + * omap_vrfb_restore_context is normally called by the core domain
22391 + * save / restore logic, but since this VRFB context was suspended
22392 + * those calls didn't actually restore the context and now we might
22393 + * have an invalid context. Do an explicit restore here.
22394 + */
22395 + restore_hw_context(vrfb->context);
22396 + set_bit(vrfb->context, &ctx_map_active);
22397 + mutex_unlock(&ctx_lock);
22398 +}
22399 +EXPORT_SYMBOL(omap_vrfb_resume_ctx);
22400 +
22401 --- /dev/null
22402 +++ b/include/linux/omapfb.h
22403 @@ -0,0 +1,242 @@
22404 +/*
22405 + * File: include/linux/omapfb.h
22406 + *
22407 + * Framebuffer driver for TI OMAP boards
22408 + *
22409 + * Copyright (C) 2004 Nokia Corporation
22410 + * Author: Imre Deak <imre.deak@nokia.com>
22411 + *
22412 + * This program is free software; you can redistribute it and/or modify it
22413 + * under the terms of the GNU General Public License as published by the
22414 + * Free Software Foundation; either version 2 of the License, or (at your
22415 + * option) any later version.
22416 + *
22417 + * This program is distributed in the hope that it will be useful, but
22418 + * WITHOUT ANY WARRANTY; without even the implied warranty of
22419 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22420 + * General Public License for more details.
22421 + *
22422 + * You should have received a copy of the GNU General Public License along
22423 + * with this program; if not, write to the Free Software Foundation, Inc.,
22424 + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22425 + */
22426 +
22427 +#ifndef __LINUX_OMAPFB_H__
22428 +#define __LINUX_OMAPFB_H__
22429 +
22430 +#include <linux/fb.h>
22431 +#include <linux/ioctl.h>
22432 +#include <linux/types.h>
22433 +
22434 +/* IOCTL commands. */
22435 +
22436 +#define OMAP_IOW(num, dtype) _IOW('O', num, dtype)
22437 +#define OMAP_IOR(num, dtype) _IOR('O', num, dtype)
22438 +#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype)
22439 +#define OMAP_IO(num) _IO('O', num)
22440 +
22441 +#define OMAPFB_MIRROR OMAP_IOW(31, int)
22442 +#define OMAPFB_SYNC_GFX OMAP_IO(37)
22443 +#define OMAPFB_VSYNC OMAP_IO(38)
22444 +#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int)
22445 +#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps)
22446 +#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int)
22447 +#define OMAPFB_LCD_TEST OMAP_IOW(45, int)
22448 +#define OMAPFB_CTRL_TEST OMAP_IOW(46, int)
22449 +#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old)
22450 +#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key)
22451 +#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key)
22452 +#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info)
22453 +#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info)
22454 +#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window)
22455 +#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info)
22456 +#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info)
22457 +#define OMAPFB_WAITFORVSYNC OMAP_IO(57)
22458 +#define OMAPFB_MEMORY_READ OMAP_IOR(58, struct omapfb_memory_read)
22459 +#define OMAPFB_GET_OVERLAY_COLORMODE OMAP_IOR(59, struct omapfb_ovl_colormode)
22460 +#define OMAPFB_WAITFORGO OMAP_IO(60)
22461 +#define OMAPFB_GET_VRAM_INFO OMAP_IOR(61, struct omapfb_vram_info)
22462 +
22463 +#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff
22464 +#define OMAPFB_CAPS_LCDC_MASK 0x00fff000
22465 +#define OMAPFB_CAPS_PANEL_MASK 0xff000000
22466 +
22467 +#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000
22468 +#define OMAPFB_CAPS_TEARSYNC 0x00002000
22469 +#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000
22470 +#define OMAPFB_CAPS_PLANE_SCALE 0x00008000
22471 +#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000
22472 +#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000
22473 +#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000
22474 +#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000
22475 +#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000
22476 +
22477 +/* Values from DSP must map to lower 16-bits */
22478 +#define OMAPFB_FORMAT_MASK 0x00ff
22479 +#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100
22480 +#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200
22481 +#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400
22482 +#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800
22483 +#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000
22484 +
22485 +#define OMAPFB_MEMTYPE_SDRAM 0
22486 +#define OMAPFB_MEMTYPE_SRAM 1
22487 +#define OMAPFB_MEMTYPE_MAX 1
22488 +
22489 +enum omapfb_color_format {
22490 + OMAPFB_COLOR_RGB565 = 0,
22491 + OMAPFB_COLOR_YUV422,
22492 + OMAPFB_COLOR_YUV420,
22493 + OMAPFB_COLOR_CLUT_8BPP,
22494 + OMAPFB_COLOR_CLUT_4BPP,
22495 + OMAPFB_COLOR_CLUT_2BPP,
22496 + OMAPFB_COLOR_CLUT_1BPP,
22497 + OMAPFB_COLOR_RGB444,
22498 + OMAPFB_COLOR_YUY422,
22499 +
22500 + OMAPFB_COLOR_ARGB16,
22501 + OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */
22502 + OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */
22503 + OMAPFB_COLOR_ARGB32,
22504 + OMAPFB_COLOR_RGBA32,
22505 + OMAPFB_COLOR_RGBX32,
22506 +};
22507 +
22508 +struct omapfb_update_window {
22509 + __u32 x, y;
22510 + __u32 width, height;
22511 + __u32 format;
22512 + __u32 out_x, out_y;
22513 + __u32 out_width, out_height;
22514 + __u32 reserved[8];
22515 +};
22516 +
22517 +struct omapfb_update_window_old {
22518 + __u32 x, y;
22519 + __u32 width, height;
22520 + __u32 format;
22521 +};
22522 +
22523 +enum omapfb_plane {
22524 + OMAPFB_PLANE_GFX = 0,
22525 + OMAPFB_PLANE_VID1,
22526 + OMAPFB_PLANE_VID2,
22527 +};
22528 +
22529 +enum omapfb_channel_out {
22530 + OMAPFB_CHANNEL_OUT_LCD = 0,
22531 + OMAPFB_CHANNEL_OUT_DIGIT,
22532 +};
22533 +
22534 +struct omapfb_plane_info {
22535 + __u32 pos_x;
22536 + __u32 pos_y;
22537 + __u8 enabled;
22538 + __u8 channel_out;
22539 + __u8 mirror;
22540 + __u8 reserved1;
22541 + __u32 out_width;
22542 + __u32 out_height;
22543 + __u32 reserved2[12];
22544 +};
22545 +
22546 +struct omapfb_mem_info {
22547 + __u32 size;
22548 + __u8 type;
22549 + __u8 reserved[3];
22550 +};
22551 +
22552 +struct omapfb_caps {
22553 + __u32 ctrl;
22554 + __u32 plane_color;
22555 + __u32 wnd_color;
22556 +};
22557 +
22558 +enum omapfb_color_key_type {
22559 + OMAPFB_COLOR_KEY_DISABLED = 0,
22560 + OMAPFB_COLOR_KEY_GFX_DST,
22561 + OMAPFB_COLOR_KEY_VID_SRC,
22562 +};
22563 +
22564 +struct omapfb_color_key {
22565 + __u8 channel_out;
22566 + __u32 background;
22567 + __u32 trans_key;
22568 + __u8 key_type;
22569 +};
22570 +
22571 +enum omapfb_update_mode {
22572 + OMAPFB_UPDATE_DISABLED = 0,
22573 + OMAPFB_AUTO_UPDATE,
22574 + OMAPFB_MANUAL_UPDATE
22575 +};
22576 +
22577 +struct omapfb_memory_read {
22578 + __u16 x;
22579 + __u16 y;
22580 + __u16 w;
22581 + __u16 h;
22582 + size_t buffer_size;
22583 + void __user *buffer;
22584 +};
22585 +
22586 +struct omapfb_ovl_colormode {
22587 + __u8 overlay_idx;
22588 + __u8 mode_idx;
22589 + __u32 bits_per_pixel;
22590 + __u32 nonstd;
22591 + struct fb_bitfield red;
22592 + struct fb_bitfield green;
22593 + struct fb_bitfield blue;
22594 + struct fb_bitfield transp;
22595 +};
22596 +
22597 +struct omapfb_vram_info {
22598 + __u32 total;
22599 + __u32 free;
22600 + __u32 largest_free_block;
22601 + __u32 reserved[5];
22602 +};
22603 +
22604 +#ifdef __KERNEL__
22605 +
22606 +#include <mach/board.h>
22607 +
22608 +#ifdef CONFIG_ARCH_OMAP1
22609 +#define OMAPFB_PLANE_NUM 1
22610 +#else
22611 +#define OMAPFB_PLANE_NUM 3
22612 +#endif
22613 +
22614 +struct omapfb_mem_region {
22615 + u32 paddr;
22616 + void __iomem *vaddr;
22617 + unsigned long size;
22618 + u8 type; /* OMAPFB_PLANE_MEM_* */
22619 + enum omapfb_color_format format;/* OMAPFB_COLOR_* */
22620 + unsigned format_used:1; /* Must be set when format is set.
22621 + * Needed b/c of the badly chosen 0
22622 + * base for OMAPFB_COLOR_* values
22623 + */
22624 + unsigned alloc:1; /* allocated by the driver */
22625 + unsigned map:1; /* kernel mapped by the driver */
22626 +};
22627 +
22628 +struct omapfb_mem_desc {
22629 + int region_cnt;
22630 + struct omapfb_mem_region region[OMAPFB_PLANE_NUM];
22631 +};
22632 +
22633 +struct omapfb_platform_data {
22634 + struct omap_lcd_config lcd;
22635 + struct omapfb_mem_desc mem_desc;
22636 + void *ctrl_platform_data;
22637 +};
22638 +
22639 +/* in arch/arm/plat-omap/fb.c */
22640 +extern void omapfb_set_ctrl_platform_data(void *pdata);
22641 +extern void omapfb_reserve_sdram(void);
22642 +
22643 +#endif
22644 +
22645 +#endif /* __OMAPFB_H */
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