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update kernels to 2.6.32.25 and 2.6.35.8
[openwrt.git] / target / linux / coldfire / patches / 016-m5445x_usb_initial_port.patch
1 From 6694c72448723499ce8a8603b4830bbd9d2fa0df Mon Sep 17 00:00:00 2001
2 From: Bruce Schmid <duck@freescale.com>
3 Date: Tue, 20 Nov 2007 11:06:14 -0700
4 Subject: [PATCH] USB: initial port
5
6 LTIBName: m5445x-usb-initial-port
7 Signed-off-by: Duck <duck@freescale.com>
8 ---
9 arch/m68k/coldfire/usb.c | 182 +++
10 arch/m68k/coldfire/usb/Makefile | 28 +
11 arch/m68k/coldfire/usb/otg_cmn.c | 106 ++
12 arch/m68k/coldfire/usb/otg_device.c | 89 ++
13 arch/m68k/coldfire/usb/otg_host.c | 68 +
14 arch/m68k/coldfire/usb/otg_otg.c | 96 ++
15 arch/m68k/coldfire/usb/xcvr.c | 156 ++
16 drivers/usb/Kconfig | 1 +
17 drivers/usb/Makefile | 2 +
18 drivers/usb/core/usb.c | 2 +-
19 drivers/usb/gadget/Kconfig | 43 +-
20 drivers/usb/gadget/Makefile | 1 +
21 drivers/usb/gadget/ether.c | 3 +
22 drivers/usb/gadget/fsl_usb2_udc.h | 194 +---
23 drivers/usb/gadget/gadget_chips.h | 7 +
24 drivers/usb/gadget/mcf5445x_udc.c | 2758 +++++++++++++++++++++++++++++++++++
25 drivers/usb/host/Kconfig | 21 +-
26 drivers/usb/host/ehci-arc.c | 431 ++++++
27 drivers/usb/host/ehci-fsl.h | 28 +-
28 drivers/usb/host/ehci-hcd.c | 5 +
29 drivers/usb/host/ehci-mem.c | 9 +-
30 drivers/usb/host/ehci.h | 22 +
31 drivers/usb/otg/Makefile | 5 +
32 drivers/usb/otg/fsl_otg.c | 1515 +++++++++++++++++++
33 drivers/usb/otg/fsl_otg.h | 139 ++
34 drivers/usb/otg/otg_fsm.c | 381 +++++
35 drivers/usb/otg/otg_fsm.h | 170 +++
36 include/asm-m68k/mcf5445x_usb.h | 3 +-
37 include/linux/fsl_devices.h | 42 +-
38 include/linux/usb/fsl_usb2.h | 464 ++++++
39 include/linux/usb/fsl_xcvr.h | 42 +
40 31 files changed, 6809 insertions(+), 204 deletions(-)
41 create mode 100644 arch/m68k/coldfire/usb.c
42 create mode 100644 arch/m68k/coldfire/usb/Makefile
43 create mode 100644 arch/m68k/coldfire/usb/otg_cmn.c
44 create mode 100644 arch/m68k/coldfire/usb/otg_device.c
45 create mode 100644 arch/m68k/coldfire/usb/otg_host.c
46 create mode 100644 arch/m68k/coldfire/usb/otg_otg.c
47 create mode 100644 arch/m68k/coldfire/usb/xcvr.c
48 create mode 100644 drivers/usb/gadget/mcf5445x_udc.c
49 create mode 100644 drivers/usb/host/ehci-arc.c
50 create mode 100644 drivers/usb/otg/Makefile
51 create mode 100644 drivers/usb/otg/fsl_otg.c
52 create mode 100644 drivers/usb/otg/fsl_otg.h
53 create mode 100644 drivers/usb/otg/otg_fsm.c
54 create mode 100644 drivers/usb/otg/otg_fsm.h
55 create mode 100644 include/linux/usb/fsl_usb2.h
56 create mode 100644 include/linux/usb/fsl_xcvr.h
57
58 --- /dev/null
59 +++ b/arch/m68k/coldfire/usb.c
60 @@ -0,0 +1,182 @@
61 +/*
62 + *
63 + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
64 + *
65 + * otg_{get,set}_transceiver() are from arm/plat-omap/usb.c.
66 + * which is Copyright (C) 2004 Texas Instruments, Inc.
67 + */
68 +
69 +/*
70 + * The code contained herein is licensed under the GNU General Public
71 + * License. You may obtain a copy of the GNU General Public License
72 + * Version 2 or later at the following locations:
73 + *
74 + * http://www.opensource.org/licenses/gpl-license.html
75 + * http://www.gnu.org/copyleft/gpl.html
76 + */
77 +
78 +#include <linux/module.h>
79 +#include <linux/kernel.h>
80 +#include <linux/types.h>
81 +#include <linux/errno.h>
82 +#include <linux/init.h>
83 +#include <linux/io.h>
84 +#include <linux/err.h>
85 +#include <linux/platform_device.h>
86 +#include <linux/usb/otg.h>
87 +#include <linux/delay.h>
88 +#include <linux/fsl_devices.h>
89 +#include <linux/usb/fsl_xcvr.h>
90 +
91 +
92 +/* The dmamask must be set for EHCI to work */
93 +static u64 ehci_dmamask = ~(u32) 0;
94 +
95 +struct fsl_xcvr_ops *xc_ops[3] = { NULL };
96 +
97 +void fsl_usb_enable_clk(void)
98 +{
99 +}
100 +EXPORT_SYMBOL(fsl_usb_enable_clk);
101 +
102 +void fsl_usb_disable_clk(void)
103 +{
104 +}
105 +EXPORT_SYMBOL(fsl_usb_disable_clk);
106 +
107 +void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops)
108 +{
109 + pr_debug("%s ctrlr=%d\n", __FUNCTION__, xcvr_ops->ctrlr);
110 + xc_ops[xcvr_ops->ctrlr] = xcvr_ops;
111 +
112 +}
113 +EXPORT_SYMBOL(fsl_usb_xcvr_register);
114 +
115 +void fsl_usb_xcvr_unregister(enum fsl_usb_ctrlr ctrlr)
116 +{
117 + pr_debug("%s ctrlr=%d\n", __FUNCTION__, ctrlr);
118 + xc_ops[ctrlr] = NULL;
119 +}
120 +EXPORT_SYMBOL(fsl_usb_xcvr_unregister);
121 +
122 +/*!
123 + * Register an instance of a USB host platform device.
124 + *
125 + * @param res: resource pointer
126 + * @param n_res: number of resources
127 + * @param config: config pointer
128 + *
129 + * @return newly-registered platform_device
130 + *
131 + * DDD fix this comment:
132 + * The USB controller supports 3 host interfaces, and the
133 + * kernel can be configured to support some number of them.
134 + * Each supported host interface is registered as an instance
135 + * of the "fsl-ehci" device. Call this function multiple times
136 + * to register each host interface.
137 + */
138 +static int instance_id;
139 +struct platform_device *host_pdev_register(struct resource *res, int n_res,
140 + struct fsl_usb2_platform_data *config)
141 +{
142 + struct platform_device *pdev;
143 +
144 + pr_debug("register host res=0x%p, size=%d\n", res, n_res);
145 +
146 + pdev = platform_device_register_simple("fsl-ehci",
147 + instance_id, res, n_res);
148 + if (IS_ERR(pdev)) {
149 + printk(KERN_ERR "usb: can't register %s Host, %ld\n",
150 + config->name, PTR_ERR(pdev));
151 + return NULL;
152 + }
153 +
154 + pdev->dev.coherent_dma_mask = 0xffffffff;
155 + pdev->dev.dma_mask = &ehci_dmamask;
156 +
157 + /*
158 + * platform_device_add_data() makes a copy of
159 + * the platform_data passed in. That makes it
160 + * impossible to share the same config struct for
161 + * all OTG devices (host,gadget,otg). So, just
162 + * set the platform_data pointer ourselves.
163 + */
164 + pdev->dev.platform_data = config;
165 +
166 + printk(KERN_INFO "usb: %s Host registered\n", config->name);
167 + pr_debug("pdev=0x%p dev=0x%p resources=0x%p pdata=0x%p\n",
168 + pdev, &pdev->dev, pdev->resource, pdev->dev.platform_data);
169 +
170 + instance_id++;
171 +
172 + return pdev;
173 +}
174 +
175 +
176 +int fsl_usb_mem_init(struct platform_device *pdev)
177 +{
178 + struct resource *res;
179 + struct fsl_usb2_platform_data *pdata;
180 +
181 + pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data;
182 +
183 + pr_debug("%s: pdev=0x%p pdata=0x%p\n", __FUNCTION__, pdev, pdata);
184 +
185 + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
186 + if (!res) {
187 + dev_err(&pdev->dev, "no MEM resource.\n");
188 + return -ENODEV;
189 + }
190 +
191 + pdata->r_start = res->start;
192 + pdata->r_len = res->end - res->start + 1;
193 + pr_debug("%s: MEM resource start=0x%x len=0x%x\n", pdata->name,
194 + res->start, pdata->r_len);
195 +
196 + if (!request_mem_region(pdata->r_start, pdata->r_len, "OTG")) {
197 + dev_err(&pdev->dev, "request_mem_region failed\n");
198 + return -EBUSY;
199 + }
200 + pdata->regs = ioremap(pdata->r_start, pdata->r_len);
201 + pr_debug("ioremapped to 0x%p\n", pdata->regs);
202 +
203 + if (pdata->regs == NULL) {
204 + dev_err(&pdev->dev, "ioremap failed\n");
205 + release_mem_region(pdata->r_start, pdata->r_len);
206 + return -EFAULT;
207 + }
208 +
209 + pr_debug("%s: success\n", __FUNCTION__);
210 + return 0;
211 +}
212 +
213 +
214 +#if defined(CONFIG_USB_OTG)
215 +static struct otg_transceiver *xceiv;
216 +
217 +/**
218 + * otg_get_transceiver - find the (single) OTG transceiver driver
219 + *
220 + * Returns the transceiver driver, after getting a refcount to it; or
221 + * null if there is no such transceiver. The caller is responsible for
222 + * releasing that count.
223 + */
224 +struct otg_transceiver *otg_get_transceiver(void)
225 +{
226 + pr_debug("%s xceiv=0x%p\n", __FUNCTION__, xceiv);
227 + if (xceiv)
228 + get_device(xceiv->dev);
229 + return xceiv;
230 +}
231 +EXPORT_SYMBOL(otg_get_transceiver);
232 +
233 +int otg_set_transceiver(struct otg_transceiver *x)
234 +{
235 + pr_debug("%s xceiv=0x%p x=0x%p\n", __FUNCTION__, xceiv, x);
236 + if (xceiv && x)
237 + return -EBUSY;
238 + xceiv = x;
239 + return 0;
240 +}
241 +EXPORT_SYMBOL(otg_set_transceiver);
242 +#endif
243 --- /dev/null
244 +++ b/arch/m68k/coldfire/usb/Makefile
245 @@ -0,0 +1,28 @@
246 +#
247 +# Makefile for the linux kernel.
248 +#
249 +
250 +# Object file lists.
251 +
252 +ifneq ($(CONFIG_USB_EHCI_HCD),)
253 + obj-y += otg_host.o
254 +endif
255 +
256 +ifneq ($(CONFIG_USB_GADGET_MCF5445X),)
257 + obj-y += otg_device.o
258 +endif
259 +
260 +ifneq ($(strip $(CONFIG_USB_GADGET_MCF5445X) $(CONFIG_USB_EHCI_HCD)),)
261 + obj-y += otg_cmn.o
262 +endif
263 +
264 +ifneq ($(CONFIG_USB_OTG),)
265 + obj-y += otg_otg.o
266 +endif
267 +
268 +
269 +# USB Transceiver driver:
270 +ifneq ($(strip $(CONFIG_USB) $(CONFIG_USB_GADGET_MCF5445X)),)
271 + obj-y += xcvr.o
272 +endif
273 +
274 --- /dev/null
275 +++ b/arch/m68k/coldfire/usb/otg_cmn.c
276 @@ -0,0 +1,106 @@
277 +/*
278 + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
279 + */
280 +
281 +/*
282 + * The code contained herein is licensed under the GNU General Public
283 + * License. You may obtain a copy of the GNU General Public License
284 + * Version 2 or later at the following locations:
285 + *
286 + * http://www.opensource.org/licenses/gpl-license.html
287 + * http://www.gnu.org/copyleft/gpl.html
288 + */
289 +
290 +#include <linux/module.h>
291 +#include <linux/kernel.h>
292 +#include <linux/types.h>
293 +#include <linux/err.h>
294 +#include <linux/errno.h>
295 +#include <linux/init.h>
296 +#include <linux/io.h>
297 +#include <linux/irq.h>
298 +#include <linux/platform_device.h>
299 +#include <linux/delay.h>
300 +#include <linux/fsl_devices.h>
301 +#include <linux/usb/fsl_xcvr.h>
302 +
303 +#include <asm/system.h>
304 +#include <asm/coldfire.h>
305 +
306 +extern void fsl_usb_enable_clk(void);
307 +extern void fsl_usb_disable_clk(void);
308 +extern int fsl_usb_mem_init(struct platform_device *pdev);
309 +
310 +extern struct fsl_xcvr_ops *xc_ops[];
311 +
312 +static int otg_used;
313 +
314 +int usbotg_init(struct platform_device *pdev)
315 +{
316 + struct fsl_usb2_platform_data *pdata;
317 + struct fsl_xcvr_ops *xops = xc_ops[USB_CTRLR_OTG];
318 + int rc;
319 +
320 + pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data;
321 +
322 + pr_debug("%s: pdev=0x%p pdata=0x%p\n", __FUNCTION__, pdev, pdata);
323 +
324 + if (!xops) {
325 + printk(KERN_ERR "OTG transceiver ops missing\n");
326 + return -EINVAL;
327 + }
328 + pdata->xcvr_ops = xops;
329 + pdata->xcvr_type = xops->xcvr_type;
330 +
331 + if (!otg_used) {
332 + /* request_mem_region and ioremap registers */
333 + rc = fsl_usb_mem_init(pdev);
334 + if (rc)
335 + return rc;
336 +
337 + fsl_usb_enable_clk();
338 +
339 + if (xops->init)
340 + xops->init(pdev);
341 + }
342 +
343 + otg_used++;
344 + pr_debug("%s: success\n", __FUNCTION__);
345 + return 0;
346 +}
347 +
348 +void usbotg_uninit(struct platform_device *pdev)
349 +{
350 + struct fsl_usb2_platform_data *pdata;
351 + pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data;
352 +
353 + pr_debug("%s\n", __FUNCTION__);
354 +
355 + otg_used--;
356 + if (!otg_used) {
357 + if (pdata->xcvr_ops && pdata->xcvr_ops->uninit)
358 + pdata->xcvr_ops->uninit(pdev);
359 +
360 + iounmap(pdata->regs);
361 + release_mem_region(pdata->r_start, pdata->r_len);
362 +
363 + pdata->regs = NULL;
364 + pdata->r_start = pdata->r_len = 0;
365 +
366 + fsl_usb_disable_clk();
367 + }
368 +}
369 +
370 +struct fsl_usb2_platform_data mxc_otg_config = {
371 + .name = "OTG",
372 + .platform_init = usbotg_init,
373 + .platform_uninit = usbotg_uninit,
374 + .es = 1,
375 + .big_endian_mmio = 1,
376 + .big_endian_desc = 1,
377 + .le_setup_buf = 1,
378 + .does_otg = 1,
379 + .power_budget = 500, /* 500 mA max power */
380 + .max_ep_nr = 4, /* DDD read from a register ? */
381 + .phy_mode = FSL_USB2_PHY_ULPI, /* DDD redundant with xcvr_type */
382 +};
383 --- /dev/null
384 +++ b/arch/m68k/coldfire/usb/otg_device.c
385 @@ -0,0 +1,89 @@
386 +/*
387 + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
388 + */
389 +
390 +/*
391 + * The code contained herein is licensed under the GNU General Public
392 + * License. You may obtain a copy of the GNU General Public License
393 + * Version 2 or later at the following locations:
394 + *
395 + * http://www.opensource.org/licenses/gpl-license.html
396 + * http://www.gnu.org/copyleft/gpl.html
397 + */
398 +
399 +#include <linux/module.h>
400 +#include <linux/kernel.h>
401 +#include <linux/types.h>
402 +#include <linux/errno.h>
403 +#include <linux/init.h>
404 +#include <linux/io.h>
405 +#include <linux/irq.h>
406 +#include <linux/err.h>
407 +#include <linux/platform_device.h>
408 +#include <linux/usb/otg.h>
409 +#include <linux/delay.h>
410 +#include <linux/fsl_devices.h>
411 +#include <linux/usb/fsl_xcvr.h>
412 +
413 +#include <asm/system.h>
414 +#include <asm/coldfire.h>
415 +
416 +#define USB_OTGREGS_BASE MCF_REG32(0xFC0B0000)
417 +#define INT_USB (64 + 64 + 47) /* INTC1:47 16.2.9.1 */
418 +#define INT_UOCSR (64 + 64 + 53) /* INTC1:53 16.2.9.1 */
419 +
420 +extern int usbotg_init(struct platform_device *pdev);
421 +extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata);
422 +extern struct fsl_usb2_platform_data mxc_otg_config;
423 +
424 +struct platform_device otg_udc_device;
425 +
426 +/*!
427 + * OTG Gadget device
428 + */
429 +
430 +static void usb_release(struct device *dev)
431 +{
432 + /* normally not freed */
433 +}
434 +
435 +static u64 udc_dmamask = ~(u32) 0;
436 +static struct resource otg_udc_resources[] = {
437 + [0] = {
438 + .start = (u32) (&USB_OTGREGS_BASE),
439 + .end = (u32) (&USB_OTGREGS_BASE + 0x1ff),
440 + .flags = IORESOURCE_MEM,
441 + },
442 + [1] = {
443 + .start = INT_USB,
444 + .flags = IORESOURCE_IRQ,
445 + },
446 +};
447 +
448 +
449 +struct platform_device otg_udc_device = {
450 + .name = "fsl-usb2-udc",
451 + .id = -1,
452 + .dev = {
453 + .release = usb_release,
454 + .dma_mask = &udc_dmamask,
455 + .coherent_dma_mask = 0xffffffff,
456 + .platform_data = &mxc_otg_config,
457 + },
458 + .resource = otg_udc_resources,
459 + .num_resources = ARRAY_SIZE(otg_udc_resources),
460 +};
461 +
462 +static int __init udc_init(void)
463 +{
464 + int rc __attribute((unused));
465 +
466 + rc = platform_device_register(&otg_udc_device);
467 + if (rc)
468 + printk(KERN_ERR "usb: can't register OTG Gadget, rc=%d\n", rc);
469 + else
470 + printk(KERN_INFO "usb: OTG Gadget registered\n");
471 + return rc;
472 +}
473 +
474 +subsys_initcall(udc_init);
475 --- /dev/null
476 +++ b/arch/m68k/coldfire/usb/otg_host.c
477 @@ -0,0 +1,68 @@
478 +/*
479 + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
480 + */
481 +
482 +/*
483 + * The code contained herein is licensed under the GNU General Public
484 + * License. You may obtain a copy of the GNU General Public License
485 + * Version 2 or later at the following locations:
486 + *
487 + * http://www.opensource.org/licenses/gpl-license.html
488 + * http://www.gnu.org/copyleft/gpl.html
489 + */
490 +
491 +#include <linux/module.h>
492 +#include <linux/kernel.h>
493 +#include <linux/types.h>
494 +#include <linux/errno.h>
495 +#include <linux/init.h>
496 +#include <linux/io.h>
497 +#include <linux/irq.h>
498 +#include <linux/err.h>
499 +#include <linux/platform_device.h>
500 +#include <linux/delay.h>
501 +#include <linux/fsl_devices.h>
502 +#include <linux/usb/fsl_xcvr.h>
503 +
504 +#include <asm/system.h>
505 +#include <asm/mcfsim.h>
506 +
507 +#define USB_OTGREGS_BASE MCF_REG32(0xFC0B0000)
508 +#define INT_USB (64 + 64 + 47) /* INTC1:47 16.2.9.1 */
509 +#define INT_UOCSR (64 + 64 + 53) /* INTC1:53 16.2.9.1 */
510 +
511 +struct platform_device *otg_host_device;
512 +
513 +extern struct platform_device *host_pdev_register(struct resource *res,
514 + int n_res,
515 + struct fsl_usb2_platform_data
516 + *config);
517 +
518 +extern int usbotg_init(struct platform_device *pdev);
519 +extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata);
520 +extern struct fsl_usb2_platform_data mxc_otg_config;
521 +
522 +/*!
523 + * OTG host config
524 + */
525 +static struct resource otg_host_resources[] = {
526 + [0] = {
527 + .start = (u32) (&USB_OTGREGS_BASE),
528 + .end = (u32) (&USB_OTGREGS_BASE + 0x1ff),
529 + .flags = IORESOURCE_MEM,
530 + },
531 + [1] = {
532 + .start = INT_USB,
533 + .flags = IORESOURCE_IRQ,
534 + },
535 +};
536 +
537 +static int __init otg_host_init(void)
538 +{
539 + otg_host_device = host_pdev_register(otg_host_resources,
540 + ARRAY_SIZE(otg_host_resources),
541 + &mxc_otg_config);
542 + return 0;
543 +}
544 +
545 +subsys_initcall(otg_host_init);
546 --- /dev/null
547 +++ b/arch/m68k/coldfire/usb/otg_otg.c
548 @@ -0,0 +1,96 @@
549 +/*
550 + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
551 + */
552 +
553 +/*
554 + * The code contained herein is licensed under the GNU General Public
555 + * License. You may obtain a copy of the GNU General Public License
556 + * Version 2 or later at the following locations:
557 + *
558 + * http://www.opensource.org/licenses/gpl-license.html
559 + * http://www.gnu.org/copyleft/gpl.html
560 + */
561 +
562 +/*
563 + * platform_device registration for ULPI OTG device
564 + */
565 +
566 +#include <linux/module.h>
567 +#include <linux/kernel.h>
568 +#include <linux/types.h>
569 +#include <linux/errno.h>
570 +#include <linux/init.h>
571 +#include <linux/err.h>
572 +#include <linux/platform_device.h>
573 +#include <linux/fsl_devices.h>
574 +
575 +#include <asm/mcfsim.h>
576 +
577 +#define USB_OTGREGS_BASE MCF_REG32(0xFC0B0000)
578 +#define INT_USB (64 + 64 + 47) /* INTC1:47 16.2.9.1 */
579 +#define INT_UOCSR (64 + 64 + 53) /* INTC1:53 16.2.9.1 */
580 +
581 +extern int usbotg_init(struct platform_device *pdev);
582 +extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata);
583 +extern struct fsl_usb2_platform_data mxc_otg_config;
584 +
585 +static void otg_otg_release(struct device *dev)
586 +{
587 + /* normally not freed */
588 +}
589 +
590 +/* *INDENT-OFF* */
591 +static struct resource otg_otg_resources[] = {
592 + [0] = {
593 + .start = (u32) (&USB_OTGREGS_BASE),
594 + .end = (u32) (&USB_OTGREGS_BASE + 0x1ff),
595 + .flags = IORESOURCE_MEM,
596 + },
597 + [1] = {
598 + .start = INT_USB,
599 + .flags = IORESOURCE_IRQ,
600 + },
601 +};
602 +
603 +/*!
604 + * OTG device
605 + */
606 +static u64 otg_otg_dmamask = ~(u32) 0;
607 +static struct platform_device otg_otg_device = {
608 + .name = "fsl-usb2-otg",
609 + .id = -1,
610 + .dev = {
611 + .release = otg_otg_release,
612 + .dma_mask = &otg_otg_dmamask,
613 + .coherent_dma_mask = 0xffffffff,
614 + .platform_data = &mxc_otg_config,
615 + },
616 + .resource = otg_otg_resources,
617 + .num_resources = ARRAY_SIZE(otg_otg_resources),
618 +};
619 +/* *INDENT-ON* */
620 +
621 +static int __init mx31_otg_otg_init(void)
622 +{
623 + int rc = 0;
624 +
625 + pr_debug("register OTG otg res=0x%p, size=%d\n",
626 + otg_otg_device.resource, otg_otg_device.num_resources);
627 +
628 + rc = platform_device_register(&otg_otg_device);
629 + if (rc) {
630 + pr_debug("can't register ULPI OTG dvc, %d\n", rc);
631 + } else {
632 + printk(KERN_INFO "usb: OTG ULPI transceiver registered\n");
633 + pr_debug("otg_otg_device=0x%p resources=0x%p.\n",
634 + &otg_otg_device, otg_otg_device.resource);
635 + }
636 +
637 + return rc;
638 +}
639 +
640 +subsys_initcall(mx31_otg_otg_init);
641 +
642 +MODULE_AUTHOR("Freescale Semiconductor, Inc.");
643 +MODULE_DESCRIPTION("ULPI OTG device registration");
644 +MODULE_LICENSE("GPL");
645 --- /dev/null
646 +++ b/arch/m68k/coldfire/usb/xcvr.c
647 @@ -0,0 +1,156 @@
648 +/*
649 + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
650 + */
651 +
652 +/*
653 + * The code contained herein is licensed under the GNU General Public
654 + * License. You may obtain a copy of the GNU General Public License
655 + * Version 2 or later at the following locations:
656 + *
657 + * http://www.opensource.org/licenses/gpl-license.html
658 + * http://www.gnu.org/copyleft/gpl.html
659 + */
660 +
661 +#include <linux/module.h>
662 +#include <linux/kernel.h>
663 +#include <linux/types.h>
664 +#include <linux/errno.h>
665 +#include <linux/init.h>
666 +#include <linux/err.h>
667 +#include <linux/platform_device.h>
668 +#include <linux/delay.h>
669 +#include <linux/fsl_devices.h>
670 +#include <linux/usb/fsl_xcvr.h>
671 +#include <linux/usb/fsl_usb2.h>
672 +
673 +#include <asm/mcfsim.h>
674 +
675 +extern void fsl_usb_xcvr_register(struct fsl_xcvr_ops *xcvr_ops);
676 +extern void fsl_usb_xcvr_unregister(enum fsl_usb_ctrlr ctrlr);
677 +
678 +#define MCF_SCM_BCR MCF_REG32(0xFC040024)
679 +#define MCF_SCM_BCR_GBR (1 << 9) /* global bursts for read */
680 +#define MCF_SCM_BCR_GBW (1 << 8) /* global bursts for write */
681 +#define MCF_SCM_BCR_SBE_ALL (0xff << 0) /* slave burst enable */
682 +
683 +
684 +#ifdef ULPI_DEBUG
685 +void print_ulpi_regs(void)
686 +{
687 + pr_debug("MCF_SCM_BCR=0x%08lx MCF_CCM_MISCCR=0x%08x "
688 + "MCF_GPIO_PAR_DMA=0x%08x MCF_GPIO_PAR_USB=08%08x "
689 + "MCF_GPIO_PAR_FEC=08%08x\n",
690 + MCF_SCM_BCR, MCF_CCM_MISCCR, MCF_GPIO_PAR_DMA,
691 + MCF_GPIO_PAR_USB, MCF_GPIO_PAR_FEC);
692 +}
693 +EXPORT_SYMBOL(print_ulpi_regs);
694 +#endif
695 +
696 +
697 +static void xcvr_init(struct platform_device *pdev)
698 +{
699 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
700 + struct fsl_xcvr_ops *this = pdata->xcvr_ops;
701 + struct fsl_usb_host_regs *regs = pdata->regs;
702 +
703 + pr_debug("%s: ctrlr=%d pdata=0x%p regs=0x%p\n", __FUNCTION__,
704 + this->ctrlr, pdata, pdata->regs);
705 +
706 + /* enable USB read, write and slave bursts */
707 + MCF_SCM_BCR = MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW | MCF_SCM_BCR_SBE_ALL;
708 +
709 + /* Use external clock source if PLL isn't a multiple of 60MHz */
710 + MCF_CCM_MISCCR &= ~MCF_CCM_MISCCR_USBSRC;
711 +
712 + /* Initialize the USB Clock: use USB input clock */
713 + MCF_GPIO_PAR_DMA = (MCF_GPIO_PAR_DMA & MCF_GPIO_PAR_DMA_DREQ1_MASK) |
714 + MCF_GPIO_PAR_DMA_DREQ1_USB_CLKIN;
715 +
716 + switch (this->xcvr_type) {
717 + case PORTSCX_PTS_ULPI:
718 + /* Enable the required ULPI signals */
719 + MCF_GPIO_PAR_DMA = (MCF_GPIO_PAR_DMA &
720 + MCF_GPIO_PAR_DMA_DACK1_MASK) |
721 + MCF_GPIO_PAR_DMA_DACK1_ULPI_DIR;
722 +
723 + MCF_GPIO_PAR_USB = MCF_GPIO_PAR_USB_VBUSEN_ULPI_NXT |
724 + MCF_GPIO_PAR_USB_VBUSOC_ULPI_STP;
725 +
726 + MCF_GPIO_PAR_FEC = (MCF_GPIO_PAR_FEC &
727 + MCF_GPIO_PAR_FEC_FEC0_MASK) |
728 + MCF_GPIO_PAR_FEC_FEC0_RMII_ULPI;
729 + break;
730 + case PORTSCX_PTS_ONCHIP:
731 + /* Enable VBUS_EN and VBUS_OC signals */
732 + MCF_GPIO_PAR_USB = MCF_GPIO_PAR_USB_VBUSEN_VBUSEN |
733 + MCF_GPIO_PAR_USB_VBUSOC_VBUSOC;
734 +
735 + /* Setup USB_VBUS_OC signal to be active-low */
736 + MCF_CCM_MISCCR |= MCF_CCM_MISCCR_USBOC;
737 +
738 + break;
739 + }
740 +
741 + pr_debug("&regs->portsc1=0x%p old portsc1=0x%x \n", &regs->portsc1,
742 + regs->portsc1);
743 +
744 + regs->portsc1 &= ~PORTSCX_PTS_MASK;
745 + regs->portsc1 |= this->xcvr_type;
746 +
747 + /*
748 + * need to reset the controller here so that the ID pin
749 + * is correctly detected.
750 + */
751 + regs->usbcmd |= USB_CMD_CTRL_RESET;
752 +
753 + /*
754 + * allow controller to reset, and leave time for
755 + * the ULPI transceiver to reset too.
756 + */
757 + mdelay(10);
758 +
759 + pr_debug("DDD %s: done. portsc1=0x%x\n", __FUNCTION__, regs->portsc1);
760 +}
761 +
762 +static void xcvr_uninit(struct platform_device *pdev)
763 +{
764 + pr_debug("%s: pdev=0x%p\n", __FUNCTION__, pdev);
765 +}
766 +
767 +
768 +struct fsl_xcvr_ops xcvr_ops_otg = {
769 + .ctrlr = USB_CTRLR_OTG,
770 + .init = xcvr_init,
771 + .uninit = xcvr_uninit,
772 +
773 +#ifdef CONFIG_USB_M5445X_ULPI
774 + .xcvr_type = PORTSCX_PTS_ULPI,
775 +#elif defined CONFIG_USB_M5445X_FSLS
776 + .xcvr_type = PORTSCX_PTS_ONCHIP,
777 +#else
778 +#error "Invalid USB transceiver selection."
779 +#endif
780 +};
781 +
782 +static int __init usb_xcvr_init(void)
783 +{
784 + pr_debug("%s\n", __FUNCTION__);
785 +
786 + fsl_usb_xcvr_register(&xcvr_ops_otg);
787 +
788 + pr_debug("%s done\n", __FUNCTION__);
789 + return 0;
790 +}
791 +
792 +static void __exit usb_xcvr_exit(void)
793 +{
794 + fsl_usb_xcvr_unregister(USB_CTRLR_OTG);
795 +}
796 +
797 +module_init(usb_xcvr_init);
798 +module_exit(usb_xcvr_exit);
799 +
800 +MODULE_AUTHOR("Freescale Semiconductor, Inc.");
801 +MODULE_DESCRIPTION("External ULPI xcvr driver");
802 +MODULE_LICENSE("GPL");
803 +
804 --- a/drivers/usb/Kconfig
805 +++ b/drivers/usb/Kconfig
806 @@ -55,6 +55,7 @@ config USB_ARCH_HAS_EHCI
807 default y if PPC_83xx
808 default y if SOC_AU1200
809 default y if ARCH_IXP4XX
810 + default y if M54455
811 default PCI
812
813 # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
814 --- a/drivers/usb/Makefile
815 +++ b/drivers/usb/Makefile
816 @@ -32,3 +32,5 @@ obj-$(CONFIG_USB) += misc/
817
818 obj-$(CONFIG_USB_ATM) += atm/
819 obj-$(CONFIG_USB_SPEEDTOUCH) += atm/
820 +
821 +obj-$(CONFIG_USB_OTG) += otg/
822 --- a/drivers/usb/core/usb.c
823 +++ b/drivers/usb/core/usb.c
824 @@ -52,7 +52,7 @@ static int nousb; /* Disable USB when bu
825 struct workqueue_struct *ksuspend_usb_wq;
826
827 #ifdef CONFIG_USB_SUSPEND
828 -static int usb_autosuspend_delay = 2; /* Default delay value,
829 +static int usb_autosuspend_delay = -1; /* Default delay value,
830 * in seconds */
831 module_param_named(autosuspend, usb_autosuspend_delay, int, 0644);
832 MODULE_PARM_DESC(autosuspend, "default autosuspend delay");
833 --- a/drivers/usb/gadget/Kconfig
834 +++ b/drivers/usb/gadget/Kconfig
835 @@ -231,6 +231,26 @@ config SUPERH_BUILT_IN_M66592
836 However, this problem is improved if change a value of
837 NET_IP_ALIGN to 4.
838
839 +config USB_GADGET_MCF5445X
840 + boolean "MCF5445X USB Device Controller"
841 + depends on M54455 && USB_M5445X_ULPI
842 + select USB_GADGET_DUALSPEED
843 + help
844 + Freescale's MCF5445X processors include
845 + an integrated device controller (as part of the OTG module).
846 + It has four programmable, bidirectional endpoints,
847 + including endpoint 0.
848 +
849 + Say "y" to link the driver statically, or "m" to build a
850 + dynamically linked module called "mcf5445_udc" and force all
851 + gadget drivers to also be dynamically linked.
852 +
853 +config USB_MCF5445X
854 + tristate
855 + depends on USB_GADGET_MCF5445X
856 + default USB_GADGET
857 + select USB_GADGET_SELECTED
858 +
859 config USB_GADGET_GOKU
860 boolean "Toshiba TC86C001 'Goku-S'"
861 depends on PCI
862 @@ -285,17 +305,6 @@ config USB_OMAP
863 default USB_GADGET
864 select USB_GADGET_SELECTED
865
866 -config USB_OTG
867 - boolean "OTG Support"
868 - depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD
869 - help
870 - The most notable feature of USB OTG is support for a
871 - "Dual-Role" device, which can act as either a device
872 - or a host. The initial role choice can be changed
873 - later, when two dual-role devices talk to each other.
874 -
875 - Select this only if your OMAP board has a Mini-AB connector.
876 -
877 config USB_GADGET_S3C2410
878 boolean "S3C2410 USB Device Controller"
879 depends on ARCH_S3C2410
880 @@ -369,6 +378,18 @@ config USB_DUMMY_HCD
881
882 endchoice
883
884 +config USB_OTG
885 + boolean "OTG Support"
886 + depends on (USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD) || \
887 + (USB_GADGET_MCF5445X && USB_M5445X_ULPI)
888 + help
889 + The most notable feature of USB OTG is support for a
890 + "Dual-Role" device, which can act as either a device
891 + or a host. The initial role choice can be changed
892 + later, when two dual-role devices talk to each other.
893 +
894 + Select this only if your OMAP board has a Mini-AB connector.
895 +
896 config USB_GADGET_DUALSPEED
897 bool
898 depends on USB_GADGET
899 --- a/drivers/usb/gadget/Makefile
900 +++ b/drivers/usb/gadget/Makefile
901 @@ -17,6 +17,7 @@ obj-$(CONFIG_USB_AT91) += at91_udc.o
902 obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o
903 obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o
904 obj-$(CONFIG_USB_M66592) += m66592-udc.o
905 +obj-$(CONFIG_USB_MCF5445X) += mcf5445x_udc.o
906
907 #
908 # USB gadget drivers
909 --- a/drivers/usb/gadget/ether.c
910 +++ b/drivers/usb/gadget/ether.c
911 @@ -287,6 +287,9 @@ MODULE_PARM_DESC(host_addr, "Host Ethern
912 #define DEV_CONFIG_CDC
913 #endif
914
915 +#ifdef CONFIG_USB_GADGET_MCF5445X
916 +#define DEV_CONFIG_CDC
917 +#endif
918
919 /*-------------------------------------------------------------------------*/
920
921 --- a/drivers/usb/gadget/fsl_usb2_udc.h
922 +++ b/drivers/usb/gadget/fsl_usb2_udc.h
923 @@ -83,16 +83,6 @@ struct usb_dr_host {
924 u32 endptctrl[6]; /* Endpoint Control Registers */
925 };
926
927 - /* non-EHCI USB system interface registers (Big Endian) */
928 -struct usb_sys_interface {
929 - u32 snoop1;
930 - u32 snoop2;
931 - u32 age_cnt_thresh; /* Age Count Threshold Register */
932 - u32 pri_ctrl; /* Priority Control Register */
933 - u32 si_ctrl; /* System Interface Control Register */
934 - u8 res[236];
935 - u32 control; /* General Purpose Control Register */
936 -};
937
938 /* ep0 transfer state */
939 #define WAIT_FOR_SETUP 0
940 @@ -101,10 +91,6 @@ struct usb_sys_interface {
941 #define WAIT_FOR_OUT_STATUS 3
942 #define DATA_STATE_RECV 4
943
944 -/* Device Controller Capability Parameter register */
945 -#define DCCPARAMS_DC 0x00000080
946 -#define DCCPARAMS_DEN_MASK 0x0000001f
947 -
948 /* Frame Index Register Bit Masks */
949 #define USB_FRINDEX_MASKS 0x3fff
950 /* USB CMD Register Bit Masks */
951 @@ -180,172 +166,6 @@ struct usb_sys_interface {
952 /* endpoint list address bit masks */
953 #define USB_EP_LIST_ADDRESS_MASK 0xfffff800
954
955 -/* PORTSCX Register Bit Masks */
956 -#define PORTSCX_CURRENT_CONNECT_STATUS 0x00000001
957 -#define PORTSCX_CONNECT_STATUS_CHANGE 0x00000002
958 -#define PORTSCX_PORT_ENABLE 0x00000004
959 -#define PORTSCX_PORT_EN_DIS_CHANGE 0x00000008
960 -#define PORTSCX_OVER_CURRENT_ACT 0x00000010
961 -#define PORTSCX_OVER_CURRENT_CHG 0x00000020
962 -#define PORTSCX_PORT_FORCE_RESUME 0x00000040
963 -#define PORTSCX_PORT_SUSPEND 0x00000080
964 -#define PORTSCX_PORT_RESET 0x00000100
965 -#define PORTSCX_LINE_STATUS_BITS 0x00000C00
966 -#define PORTSCX_PORT_POWER 0x00001000
967 -#define PORTSCX_PORT_INDICTOR_CTRL 0x0000C000
968 -#define PORTSCX_PORT_TEST_CTRL 0x000F0000
969 -#define PORTSCX_WAKE_ON_CONNECT_EN 0x00100000
970 -#define PORTSCX_WAKE_ON_CONNECT_DIS 0x00200000
971 -#define PORTSCX_WAKE_ON_OVER_CURRENT 0x00400000
972 -#define PORTSCX_PHY_LOW_POWER_SPD 0x00800000
973 -#define PORTSCX_PORT_FORCE_FULL_SPEED 0x01000000
974 -#define PORTSCX_PORT_SPEED_MASK 0x0C000000
975 -#define PORTSCX_PORT_WIDTH 0x10000000
976 -#define PORTSCX_PHY_TYPE_SEL 0xC0000000
977 -
978 -/* bit 11-10 are line status */
979 -#define PORTSCX_LINE_STATUS_SE0 0x00000000
980 -#define PORTSCX_LINE_STATUS_JSTATE 0x00000400
981 -#define PORTSCX_LINE_STATUS_KSTATE 0x00000800
982 -#define PORTSCX_LINE_STATUS_UNDEF 0x00000C00
983 -#define PORTSCX_LINE_STATUS_BIT_POS 10
984 -
985 -/* bit 15-14 are port indicator control */
986 -#define PORTSCX_PIC_OFF 0x00000000
987 -#define PORTSCX_PIC_AMBER 0x00004000
988 -#define PORTSCX_PIC_GREEN 0x00008000
989 -#define PORTSCX_PIC_UNDEF 0x0000C000
990 -#define PORTSCX_PIC_BIT_POS 14
991 -
992 -/* bit 19-16 are port test control */
993 -#define PORTSCX_PTC_DISABLE 0x00000000
994 -#define PORTSCX_PTC_JSTATE 0x00010000
995 -#define PORTSCX_PTC_KSTATE 0x00020000
996 -#define PORTSCX_PTC_SEQNAK 0x00030000
997 -#define PORTSCX_PTC_PACKET 0x00040000
998 -#define PORTSCX_PTC_FORCE_EN 0x00050000
999 -#define PORTSCX_PTC_BIT_POS 16
1000 -
1001 -/* bit 27-26 are port speed */
1002 -#define PORTSCX_PORT_SPEED_FULL 0x00000000
1003 -#define PORTSCX_PORT_SPEED_LOW 0x04000000
1004 -#define PORTSCX_PORT_SPEED_HIGH 0x08000000
1005 -#define PORTSCX_PORT_SPEED_UNDEF 0x0C000000
1006 -#define PORTSCX_SPEED_BIT_POS 26
1007 -
1008 -/* bit 28 is parallel transceiver width for UTMI interface */
1009 -#define PORTSCX_PTW 0x10000000
1010 -#define PORTSCX_PTW_8BIT 0x00000000
1011 -#define PORTSCX_PTW_16BIT 0x10000000
1012 -
1013 -/* bit 31-30 are port transceiver select */
1014 -#define PORTSCX_PTS_UTMI 0x00000000
1015 -#define PORTSCX_PTS_ULPI 0x80000000
1016 -#define PORTSCX_PTS_FSLS 0xC0000000
1017 -#define PORTSCX_PTS_BIT_POS 30
1018 -
1019 -/* otgsc Register Bit Masks */
1020 -#define OTGSC_CTRL_VUSB_DISCHARGE 0x00000001
1021 -#define OTGSC_CTRL_VUSB_CHARGE 0x00000002
1022 -#define OTGSC_CTRL_OTG_TERM 0x00000008
1023 -#define OTGSC_CTRL_DATA_PULSING 0x00000010
1024 -#define OTGSC_STS_USB_ID 0x00000100
1025 -#define OTGSC_STS_A_VBUS_VALID 0x00000200
1026 -#define OTGSC_STS_A_SESSION_VALID 0x00000400
1027 -#define OTGSC_STS_B_SESSION_VALID 0x00000800
1028 -#define OTGSC_STS_B_SESSION_END 0x00001000
1029 -#define OTGSC_STS_1MS_TOGGLE 0x00002000
1030 -#define OTGSC_STS_DATA_PULSING 0x00004000
1031 -#define OTGSC_INTSTS_USB_ID 0x00010000
1032 -#define OTGSC_INTSTS_A_VBUS_VALID 0x00020000
1033 -#define OTGSC_INTSTS_A_SESSION_VALID 0x00040000
1034 -#define OTGSC_INTSTS_B_SESSION_VALID 0x00080000
1035 -#define OTGSC_INTSTS_B_SESSION_END 0x00100000
1036 -#define OTGSC_INTSTS_1MS 0x00200000
1037 -#define OTGSC_INTSTS_DATA_PULSING 0x00400000
1038 -#define OTGSC_INTR_USB_ID 0x01000000
1039 -#define OTGSC_INTR_A_VBUS_VALID 0x02000000
1040 -#define OTGSC_INTR_A_SESSION_VALID 0x04000000
1041 -#define OTGSC_INTR_B_SESSION_VALID 0x08000000
1042 -#define OTGSC_INTR_B_SESSION_END 0x10000000
1043 -#define OTGSC_INTR_1MS_TIMER 0x20000000
1044 -#define OTGSC_INTR_DATA_PULSING 0x40000000
1045 -
1046 -/* USB MODE Register Bit Masks */
1047 -#define USB_MODE_CTRL_MODE_IDLE 0x00000000
1048 -#define USB_MODE_CTRL_MODE_DEVICE 0x00000002
1049 -#define USB_MODE_CTRL_MODE_HOST 0x00000003
1050 -#define USB_MODE_CTRL_MODE_RSV 0x00000001
1051 -#define USB_MODE_SETUP_LOCK_OFF 0x00000008
1052 -#define USB_MODE_STREAM_DISABLE 0x00000010
1053 -/* Endpoint Flush Register */
1054 -#define EPFLUSH_TX_OFFSET 0x00010000
1055 -#define EPFLUSH_RX_OFFSET 0x00000000
1056 -
1057 -/* Endpoint Setup Status bit masks */
1058 -#define EP_SETUP_STATUS_MASK 0x0000003F
1059 -#define EP_SETUP_STATUS_EP0 0x00000001
1060 -
1061 -/* ENDPOINTCTRLx Register Bit Masks */
1062 -#define EPCTRL_TX_ENABLE 0x00800000
1063 -#define EPCTRL_TX_DATA_TOGGLE_RST 0x00400000 /* Not EP0 */
1064 -#define EPCTRL_TX_DATA_TOGGLE_INH 0x00200000 /* Not EP0 */
1065 -#define EPCTRL_TX_TYPE 0x000C0000
1066 -#define EPCTRL_TX_DATA_SOURCE 0x00020000 /* Not EP0 */
1067 -#define EPCTRL_TX_EP_STALL 0x00010000
1068 -#define EPCTRL_RX_ENABLE 0x00000080
1069 -#define EPCTRL_RX_DATA_TOGGLE_RST 0x00000040 /* Not EP0 */
1070 -#define EPCTRL_RX_DATA_TOGGLE_INH 0x00000020 /* Not EP0 */
1071 -#define EPCTRL_RX_TYPE 0x0000000C
1072 -#define EPCTRL_RX_DATA_SINK 0x00000002 /* Not EP0 */
1073 -#define EPCTRL_RX_EP_STALL 0x00000001
1074 -
1075 -/* bit 19-18 and 3-2 are endpoint type */
1076 -#define EPCTRL_EP_TYPE_CONTROL 0
1077 -#define EPCTRL_EP_TYPE_ISO 1
1078 -#define EPCTRL_EP_TYPE_BULK 2
1079 -#define EPCTRL_EP_TYPE_INTERRUPT 3
1080 -#define EPCTRL_TX_EP_TYPE_SHIFT 18
1081 -#define EPCTRL_RX_EP_TYPE_SHIFT 2
1082 -
1083 -/* SNOOPn Register Bit Masks */
1084 -#define SNOOP_ADDRESS_MASK 0xFFFFF000
1085 -#define SNOOP_SIZE_ZERO 0x00 /* snooping disable */
1086 -#define SNOOP_SIZE_4KB 0x0B /* 4KB snoop size */
1087 -#define SNOOP_SIZE_8KB 0x0C
1088 -#define SNOOP_SIZE_16KB 0x0D
1089 -#define SNOOP_SIZE_32KB 0x0E
1090 -#define SNOOP_SIZE_64KB 0x0F
1091 -#define SNOOP_SIZE_128KB 0x10
1092 -#define SNOOP_SIZE_256KB 0x11
1093 -#define SNOOP_SIZE_512KB 0x12
1094 -#define SNOOP_SIZE_1MB 0x13
1095 -#define SNOOP_SIZE_2MB 0x14
1096 -#define SNOOP_SIZE_4MB 0x15
1097 -#define SNOOP_SIZE_8MB 0x16
1098 -#define SNOOP_SIZE_16MB 0x17
1099 -#define SNOOP_SIZE_32MB 0x18
1100 -#define SNOOP_SIZE_64MB 0x19
1101 -#define SNOOP_SIZE_128MB 0x1A
1102 -#define SNOOP_SIZE_256MB 0x1B
1103 -#define SNOOP_SIZE_512MB 0x1C
1104 -#define SNOOP_SIZE_1GB 0x1D
1105 -#define SNOOP_SIZE_2GB 0x1E /* 2GB snoop size */
1106 -
1107 -/* pri_ctrl Register Bit Masks */
1108 -#define PRI_CTRL_PRI_LVL1 0x0000000C
1109 -#define PRI_CTRL_PRI_LVL0 0x00000003
1110 -
1111 -/* si_ctrl Register Bit Masks */
1112 -#define SI_CTRL_ERR_DISABLE 0x00000010
1113 -#define SI_CTRL_IDRC_DISABLE 0x00000008
1114 -#define SI_CTRL_RD_SAFE_EN 0x00000004
1115 -#define SI_CTRL_RD_PREFETCH_DISABLE 0x00000002
1116 -#define SI_CTRL_RD_PREFEFETCH_VAL 0x00000001
1117 -
1118 -/* control Register Bit Masks */
1119 -#define USB_CTRL_IOENB 0x00000004
1120 -#define USB_CTRL_ULPI_INT0EN 0x00000001
1121
1122 /* Endpoint Queue Head data struct
1123 * Rem: all the variables of qh are LittleEndian Mode
1124 @@ -477,7 +297,10 @@ struct fsl_udc {
1125 unsigned int irq;
1126
1127 struct usb_ctrlrequest local_setup_buff;
1128 - spinlock_t lock;
1129 + spinlock_t lock; /* udc lock */
1130 + struct fsl_usb2_platform_data *pdata;
1131 + u32 xcvr_type;
1132 +
1133 struct otg_transceiver *transceiver;
1134 unsigned softconnect:1;
1135 unsigned vbus_active:1;
1136 @@ -514,7 +337,7 @@ struct fsl_udc {
1137 #define DBG(fmt, args...) printk(KERN_DEBUG "[%s] " fmt "\n", \
1138 __FUNCTION__, ## args)
1139 #else
1140 -#define DBG(fmt, args...) do{}while(0)
1141 +#define DBG(fmt, args...) do {} while (0)
1142 #endif
1143
1144 #if 0
1145 @@ -548,7 +371,7 @@ static void dump_msg(const char *label,
1146 #ifdef VERBOSE
1147 #define VDBG DBG
1148 #else
1149 -#define VDBG(stuff...) do{}while(0)
1150 +#define VDBG(stuff...) do {} while (0)
1151 #endif
1152
1153 #define ERR(stuff...) pr_err("udc: " stuff)
1154 @@ -573,11 +396,14 @@ static void dump_msg(const char *label,
1155 #define ep_maxpacket(EP) ((EP)->ep.maxpacket)
1156 #define ep_is_in(EP) ( (ep_index(EP) == 0) ? (EP->udc->ep0_dir == \
1157 USB_DIR_IN ):((EP)->desc->bEndpointAddress \
1158 - & USB_DIR_IN)==USB_DIR_IN)
1159 + & USB_DIR_IN) == USB_DIR_IN)
1160 #define get_ep_by_pipe(udc, pipe) ((pipe == 1)? &udc->eps[0]: \
1161 &udc->eps[pipe])
1162 #define get_pipe_by_windex(windex) ((windex & USB_ENDPOINT_NUMBER_MASK) \
1163 * 2 + ((windex & USB_DIR_IN) ? 1 : 0))
1164 #define get_pipe_by_ep(EP) (ep_index(EP) * 2 + ep_is_in(EP))
1165
1166 +/* Bulk only class request */
1167 +#define USB_BULK_RESET_REQUEST 0xff
1168 +
1169 #endif
1170 --- a/drivers/usb/gadget/gadget_chips.h
1171 +++ b/drivers/usb/gadget/gadget_chips.h
1172 @@ -147,6 +147,11 @@
1173 #define gadget_is_m66592(g) 0
1174 #endif
1175
1176 +#ifdef CONFIG_USB_GADGET_MCF5445X
1177 +#define gadget_is_mcf5445x(g) !strcmp("fsl-usb2-udc", (g)->name)
1178 +#else
1179 +#define gadget_is_mcf5445x(g) 0
1180 +#endif
1181
1182 // CONFIG_USB_GADGET_SX2
1183 // CONFIG_USB_GADGET_AU1X00
1184 @@ -212,5 +217,7 @@ static inline int usb_gadget_controller_
1185 return 0x20;
1186 else if (gadget_is_m66592(gadget))
1187 return 0x21;
1188 + else if (gadget_is_mcf5445x(gadget))
1189 + return 0x22;
1190 return -ENOENT;
1191 }
1192 --- /dev/null
1193 +++ b/drivers/usb/gadget/mcf5445x_udc.c
1194 @@ -0,0 +1,2758 @@
1195 +/*
1196 + * Copyright Freescale Semiconductor, Inc. 2006-2007
1197 + *
1198 + * Based on mpc_udc.c code
1199 + * of Li Yang and Jiang Bo (Freescale Semiconductor, Inc.)
1200 + *
1201 + *
1202 + * This program is free software; you can redistribute it and/or modify it
1203 + * under the terms of the GNU General Public License as published by the
1204 + * Free Software Foundation; either version 2 of the License, or (at your
1205 + * option) any later version.
1206 + *
1207 + * This program is distributed in the hope that it will be useful,
1208 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1209 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1210 + * GNU General Public License for more details.
1211 + *
1212 + * You should have received a copy of the GNU General Public License
1213 + * along with this program; if not, write to the Free Software
1214 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1215 + *
1216 + ***************************************************************************
1217 + * Changes:
1218 + * v0.004 30 July 2007 Duck
1219 + * mcf5445x port
1220 + * v0.003 27 October 2006 Andrey Butok
1221 + * Added M5329EVB support (without external transceiver).
1222 + * v0.002 29 September 2006 Andrey Butok
1223 + * Some little changes. Added OTG support.
1224 + * v0.001 12 July 2006 Andrey Butok
1225 + * Initial Release - developed on uClinux with 2.6.17.1 kernel.
1226 + * Based on mpc_udc.c code
1227 + * of Li Yang and Jiang Bo (Freescale Semiconductor, Inc.)
1228 + *
1229 + */
1230 +
1231 +#define DEBUG
1232 +#undef VERBOSE
1233 +
1234 +#include <linux/module.h>
1235 +#include <linux/kernel.h>
1236 +#include <linux/ioport.h>
1237 +#include <linux/types.h>
1238 +#include <linux/errno.h>
1239 +#include <linux/delay.h>
1240 +#include <linux/sched.h>
1241 +#include <linux/slab.h>
1242 +#include <linux/init.h>
1243 +#include <linux/io.h>
1244 +#include <linux/irq.h>
1245 +#include <linux/timer.h>
1246 +#include <linux/list.h>
1247 +#include <linux/interrupt.h>
1248 +#include <linux/proc_fs.h>
1249 +#include <linux/mm.h>
1250 +#include <linux/platform_device.h>
1251 +#include <linux/moduleparam.h>
1252 +#include <linux/device.h>
1253 +#include <linux/usb/ch9.h>
1254 +#include <linux/usb_gadget.h>
1255 +#include <linux/usb/otg.h>
1256 +#include <linux/dma-mapping.h>
1257 +#include <linux/dmapool.h>
1258 +#include <linux/fsl_devices.h>
1259 +#include <linux/usb/fsl_xcvr.h>
1260 +#include <linux/usb/fsl_usb2.h>
1261 +#include <linux/pm.h>
1262 +
1263 +#include <asm/byteorder.h>
1264 +#include <asm/system.h>
1265 +#include <asm/unaligned.h>
1266 +#include <asm/dma.h>
1267 +
1268 +#include <asm/mcfsim.h>
1269 +#include <asm/cacheflush.h>
1270 +
1271 +#include "fsl_usb2_udc.h"
1272 +
1273 +#define DRIVER_DESC "Freescale High-Speed USB SoC Device Controller driver"
1274 +#define DRIVER_AUTHOR "Freescale Semiconductor Inc."
1275 +#define DRIVER_VERSION "30 July 2007"
1276 +
1277 +#define cpu_to_hc32(x) (x)
1278 +#define hc32_to_cpu(x) (x)
1279 +
1280 +static int udc_suspend(struct fsl_udc *udc);
1281 +
1282 +#define DMA_ADDR_INVALID (~(dma_addr_t)0)
1283 +
1284 +static const char driver_name[] = "fsl-usb2-udc";
1285 +static const char driver_desc[] = DRIVER_DESC;
1286 +
1287 +volatile static struct fsl_usb_device_regs *dr_regs;
1288 +volatile static struct usb_sys_interface *usb_sys_regs;
1289 +
1290 +/* it is initialized in probe() */
1291 +static struct fsl_udc *udc_controller;
1292 +
1293 +static const struct usb_endpoint_descriptor
1294 +fsl_ep0_desc = {
1295 + .bLength = USB_DT_ENDPOINT_SIZE,
1296 + .bDescriptorType = USB_DT_ENDPOINT,
1297 + .bEndpointAddress = 0,
1298 + .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
1299 + .wMaxPacketSize = USB_MAX_CTRL_PAYLOAD,
1300 +};
1301 +
1302 +static int fsl_udc_suspend(struct device *dev, pm_message_t state);
1303 +static int fsl_udc_resume(struct device *dev);
1304 +static void fsl_ep_fifo_flush(struct usb_ep *_ep);
1305 +
1306 +/********************************************************************
1307 + * Internal Used Function
1308 +********************************************************************/
1309 +/*-----------------------------------------------------------------
1310 + * done() - retire a request; caller blocked irqs
1311 + * @status : request status to be set, only works when
1312 + * request is still in progress.
1313 + *--------------------------------------------------------------*/
1314 +static void done(struct fsl_ep *ep, struct fsl_req *req, int status)
1315 +{
1316 + struct fsl_udc *udc = NULL;
1317 + unsigned char stopped = ep->stopped;
1318 +
1319 + udc = (struct fsl_udc *)ep->udc;
1320 +
1321 + pr_debug("udc: req=0x%p\n", req);
1322 + if (req->head) {
1323 + pr_debug("udc: freeing head=0x%p\n", req->head);
1324 + dma_pool_free(udc->td_pool, req->head, req->head->td_dma);
1325 + }
1326 +
1327 + /* the req->queue pointer is used by ep_queue() func, in which
1328 + * the request will be added into a udc_ep->queue 'd tail
1329 + * so here the req will be dropped from the ep->queue
1330 + */
1331 + list_del_init(&req->queue);
1332 +
1333 + /* req.status should be set as -EINPROGRESS in ep_queue() */
1334 + if (req->req.status == -EINPROGRESS)
1335 + req->req.status = status;
1336 + else
1337 + status = req->req.status;
1338 +
1339 + pr_debug("udc: req=0x%p mapped=%x\n", req, req->mapped);
1340 +
1341 + if (req->mapped) {
1342 + pr_debug("udc: calling dma_unmap_single(buf,%s) req=0x%p "
1343 + "a=0x%x len=%d\n",
1344 + ep_is_in(ep) ? "to_dvc" : "from_dvc",
1345 + req, req->req.dma, req->req.length);
1346 +
1347 + dma_unmap_single(ep->udc->gadget.dev.parent,
1348 + req->req.dma, req->req.length, ep_is_in(ep) ?
1349 + DMA_TO_DEVICE : DMA_FROM_DEVICE);
1350 +
1351 + req->req.dma = DMA_ADDR_INVALID;
1352 + req->mapped = 0;
1353 + pr_debug("udc: req=0x%p set req.dma=0x%x\n", req, req->req.dma);
1354 + } else {
1355 + if ((req->req.length != 0)
1356 + && (req->req.dma != DMA_ADDR_INVALID)) {
1357 + pr_debug("udc: calling dma_sync_single_for_cpu(buf,%s) "
1358 + "req=0x%p dma=0x%x len=%d\n",
1359 + ep_is_in(ep) ? "to_dvc" : "from_dvc", req,
1360 + req->req.dma, req->req.length);
1361 +
1362 + dma_sync_single_for_cpu(ep->udc->gadget.dev.parent,
1363 + req->req.dma, req->req.length,
1364 + ep_is_in(ep) ? DMA_TO_DEVICE :
1365 + DMA_FROM_DEVICE);
1366 + }
1367 + }
1368 +
1369 + if (status && (status != -ESHUTDOWN)) {
1370 + pr_debug("udc: complete %s req 0c%p stat %d len %u/%u\n",
1371 + ep->ep.name, &req->req, status,
1372 + req->req.actual, req->req.length);
1373 + }
1374 +
1375 + /* don't modify queue heads during completion callback */
1376 + ep->stopped = 1;
1377 +
1378 + spin_unlock(&ep->udc->lock);
1379 +
1380 + /* this complete() should a func implemented by gadget layer,
1381 + * eg fsg->bulk_in_complete() */
1382 + if (req->req.complete) {
1383 + pr_debug("udc: calling gadget's complete() req=0x%p\n", req);
1384 + req->req.complete(&ep->ep, &req->req);
1385 + pr_debug("udc: back from gadget's complete()\n");
1386 + }
1387 +
1388 + spin_lock(&ep->udc->lock);
1389 + ep->stopped = stopped;
1390 +}
1391 +
1392 +/*
1393 + * nuke(): delete all requests related to this ep
1394 + * called with spinlock held
1395 + *--------------------------------------------------------------*/
1396 +static void nuke(struct fsl_ep *ep, int status)
1397 +{
1398 + ep->stopped = 1;
1399 +
1400 + /* Flush fifo */
1401 + fsl_ep_fifo_flush(&ep->ep);
1402 +
1403 + /* Whether this eq has request linked */
1404 + while (!list_empty(&ep->queue)) {
1405 + struct fsl_req *req = NULL;
1406 +
1407 + req = list_entry(ep->queue.next, struct fsl_req, queue);
1408 + done(ep, req, status);
1409 + }
1410 +}
1411 +
1412 +/*------------------------------------------------------------------
1413 + Internal Hardware related function
1414 + ------------------------------------------------------------------*/
1415 +
1416 +static int dr_controller_setup(struct fsl_udc *udc)
1417 +{
1418 + unsigned int tmp;
1419 + unsigned int __attribute((unused)) ctrl = 0;
1420 + unsigned long timeout;
1421 + struct fsl_usb2_platform_data *pdata;
1422 +
1423 +#define FSL_UDC_RESET_TIMEOUT 1000
1424 +
1425 + /* before here, make sure dr_regs has been initialized */
1426 + if (!udc)
1427 + return -EINVAL;
1428 + pdata = udc->pdata;
1429 +
1430 + /* Stop and reset the usb controller */
1431 + tmp = fsl_readl(&dr_regs->usbcmd);
1432 + tmp &= ~USB_CMD_RUN_STOP;
1433 + fsl_writel(tmp, &dr_regs->usbcmd);
1434 +
1435 + tmp = fsl_readl(&dr_regs->usbcmd);
1436 + tmp |= USB_CMD_CTRL_RESET;
1437 + fsl_writel(tmp, &dr_regs->usbcmd);
1438 +
1439 + /* Wait for reset to complete */
1440 + timeout = jiffies + FSL_UDC_RESET_TIMEOUT;
1441 + while (fsl_readl(&dr_regs->usbcmd) & USB_CMD_CTRL_RESET) {
1442 + if (time_after(jiffies, timeout)) {
1443 + ERR("udc reset timeout! \n");
1444 + return -ETIMEDOUT;
1445 + }
1446 + cpu_relax();
1447 + }
1448 +
1449 + tmp = fsl_readl(&dr_regs->usbmode);
1450 + tmp &= ~0x3; /* clear mode bits */
1451 + tmp |= USB_MODE_CTRL_MODE_DEVICE;
1452 + /* Disable Setup Lockout */
1453 + tmp |= USB_MODE_SETUP_LOCK_OFF;
1454 + if (pdata->es)
1455 + tmp |= USBMODE_ES;
1456 + fsl_writel(tmp, &dr_regs->usbmode);
1457 +
1458 + if (pdata->xcvr_ops && pdata->xcvr_ops->set_device)
1459 + pdata->xcvr_ops->set_device();
1460 +
1461 + /* Clear the setup status */
1462 + fsl_writel(0, &dr_regs->usbsts);
1463 +
1464 + tmp = udc->ep_qh_dma;
1465 + tmp &= USB_EP_LIST_ADDRESS_MASK;
1466 + fsl_writel(tmp, &dr_regs->endpointlistaddr);
1467 +
1468 + /*
1469 + VDBG("vir[qh_base] is %p phy[qh_base] is 0x%8x reg is 0x%8x",
1470 + (int)udc->ep_qh, (int)tmp,
1471 + fsl_readl(&dr_regs->endpointlistaddr));
1472 + */
1473 +
1474 +
1475 + if (pdata->have_sysif_regs) {
1476 + /* Config control enable i/o output, cpu endian register */
1477 + ctrl = __raw_readl(&usb_sys_regs->control);
1478 + ctrl |= USB_CTRL_IOENB;
1479 + __raw_writel(ctrl, &usb_sys_regs->control);
1480 + }
1481 +
1482 +#if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE)
1483 + /* Turn on cache snooping hardware, since some PowerPC platforms
1484 + * wholly rely on hardware to deal with cache coherent. */
1485 +
1486 + if (pdata->have_sysif_regs) {
1487 + /* Setup Snooping for all the 4GB space */
1488 + tmp = SNOOP_SIZE_2GB; /* starts from 0x0, size 2G */
1489 + __raw_writel(tmp, &usb_sys_regs->snoop1);
1490 + tmp |= 0x80000000; /* starts from 0x8000000, size 2G */
1491 + __raw_writel(tmp, &usb_sys_regs->snoop2);
1492 + }
1493 +#endif
1494 +
1495 + return 0;
1496 +}
1497 +
1498 +static void pullup_enable(struct fsl_udc *udc)
1499 +{
1500 + u32 temp;
1501 +
1502 + unsigned short ccm = fsl_readw(&MCF_CCM_UOCSR);
1503 + ccm |= MCF_CCM_UOCSR_BVLD;
1504 + ccm &= ~MCF_CCM_UOCSR_SEND;
1505 + fsl_writew(ccm, &MCF_CCM_UOCSR);
1506 +
1507 + /* Enable DR irq reg */
1508 + temp = USB_INTR_INT_EN | USB_INTR_ERR_INT_EN
1509 + | USB_INTR_PTC_DETECT_EN | USB_INTR_RESET_EN
1510 + | USB_INTR_DEVICE_SUSPEND | USB_INTR_SYS_ERR_EN;
1511 +
1512 + fsl_writel(temp, &dr_regs->usbintr);
1513 +
1514 + /* Set controller to Run */
1515 + temp = fsl_readl(&dr_regs->usbcmd);
1516 + temp |= USB_CMD_RUN_STOP;
1517 + fsl_writel(temp, &dr_regs->usbcmd);
1518 +
1519 +#ifdef NEVER /* DDD FIXME: we want this? */
1520 + if (!udc->transceiver)
1521 + *((u16 *)(MCF_FBCS1_CSAR)) &= ~0x1; /* Enable pullup register */
1522 +#endif
1523 +}
1524 +
1525 +static void pullup_disable(struct fsl_udc *udc)
1526 +{
1527 + unsigned int tmp;
1528 + unsigned short ccm;
1529 +
1530 + VDBG();
1531 + /* disable all INTRs */
1532 + fsl_writel(0, &dr_regs->usbintr);
1533 +
1534 + ccm = fsl_readw(&MCF_CCM_UOCSR);
1535 + ccm &= ~MCF_CCM_UOCSR_BVLD;
1536 + fsl_writew(ccm, &MCF_CCM_UOCSR);
1537 +
1538 + /* set controller to Stop */
1539 + tmp = fsl_readl(&dr_regs->usbcmd);
1540 + tmp &= ~USB_CMD_RUN_STOP;
1541 + fsl_writel(tmp, &dr_regs->usbcmd);
1542 +
1543 +#ifdef NEVER /* DDD FIXME: we want this? */
1544 + if (!udc->transceiver)
1545 + *((u16 *)(MCF_FBCS1_CSAR)) |= 0x1; /* Disable pullup register */
1546 +#endif
1547 +
1548 +}
1549 +
1550 +static void dr_controller_run(struct fsl_udc *udc)
1551 +{
1552 + VDBG();
1553 + pullup_enable(udc);
1554 + udc->stopped = 0;
1555 +}
1556 +
1557 +static void dr_controller_stop(struct fsl_udc *udc)
1558 +{
1559 + pullup_disable(udc);
1560 + udc->stopped = 1;
1561 + udc->gadget.b_hnp_enable = 0;
1562 + udc->gadget.a_hnp_support = 0;
1563 + udc->gadget.a_alt_hnp_support = 0;
1564 +}
1565 +
1566 +void dr_ep_setup(unsigned char ep_num, unsigned char dir, unsigned char ep_type)
1567 +{
1568 + unsigned int tmp_epctrl = 0;
1569 +
1570 + tmp_epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
1571 + if (dir) {
1572 + if (ep_num)
1573 + tmp_epctrl |= EPCTRL_TX_DATA_TOGGLE_RST;
1574 + tmp_epctrl |= EPCTRL_TX_ENABLE;
1575 + tmp_epctrl |= ((unsigned int)(ep_type)
1576 + << EPCTRL_TX_EP_TYPE_SHIFT);
1577 + } else {
1578 + if (ep_num)
1579 + tmp_epctrl |= EPCTRL_RX_DATA_TOGGLE_RST;
1580 + tmp_epctrl |= EPCTRL_RX_ENABLE;
1581 + tmp_epctrl |= ((unsigned int)(ep_type)
1582 + << EPCTRL_RX_EP_TYPE_SHIFT);
1583 + }
1584 +
1585 + fsl_writel(tmp_epctrl, &dr_regs->endptctrl[ep_num]);
1586 +}
1587 +
1588 +static void dr_ep_change_stall(unsigned char ep_num, unsigned char dir,
1589 + int value)
1590 +{
1591 + u32 tmp_epctrl = 0;
1592 +
1593 + tmp_epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
1594 +
1595 + if (value) {
1596 + /* set the stall bit */
1597 + if (dir)
1598 + tmp_epctrl |= EPCTRL_TX_EP_STALL;
1599 + else
1600 + tmp_epctrl |= EPCTRL_RX_EP_STALL;
1601 + } else {
1602 + /* clear the stall bit and reset data toggle */
1603 + if (dir) {
1604 + tmp_epctrl &= ~EPCTRL_TX_EP_STALL;
1605 + tmp_epctrl |= EPCTRL_TX_DATA_TOGGLE_RST;
1606 + } else {
1607 + tmp_epctrl &= ~EPCTRL_RX_EP_STALL;
1608 + tmp_epctrl |= EPCTRL_RX_DATA_TOGGLE_RST;
1609 + }
1610 + }
1611 + fsl_writel(tmp_epctrl, &dr_regs->endptctrl[ep_num]);
1612 +}
1613 +
1614 +/* Get stall status of a specific ep
1615 + Return: 0: not stalled; 1:stalled */
1616 +static int dr_ep_get_stall(unsigned char ep_num, unsigned char dir)
1617 +{
1618 + u32 epctrl;
1619 +
1620 + epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
1621 + if (dir)
1622 + return (epctrl & EPCTRL_TX_EP_STALL) ? 1 : 0;
1623 + else
1624 + return (epctrl & EPCTRL_RX_EP_STALL) ? 1 : 0;
1625 +}
1626 +
1627 +/********************************************************************
1628 + Internal Structure Build up functions
1629 +********************************************************************/
1630 +
1631 +/*------------------------------------------------------------------
1632 +* struct_ep_qh_setup(): set the Endpoint Capabilites field of QH
1633 + * @zlt: Zero Length Termination Select (1: disable; 0: enable)
1634 + * @mult: Mult field
1635 + ------------------------------------------------------------------*/
1636 +static void struct_ep_qh_setup(struct fsl_udc *udc, unsigned char ep_num,
1637 + unsigned char dir, unsigned char ep_type,
1638 + unsigned int max_pkt_len,
1639 + unsigned int zlt, unsigned char mult)
1640 +{
1641 + struct ep_queue_head *p_QH = &udc->ep_qh[2 * ep_num + dir];
1642 + unsigned int tmp = 0;
1643 +
1644 + /* set the Endpoint Capabilites in QH */
1645 + switch (ep_type) {
1646 + case USB_ENDPOINT_XFER_CONTROL:
1647 + /* Interrupt On Setup (IOS). for control ep */
1648 + tmp = (max_pkt_len << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
1649 + | EP_QUEUE_HEAD_IOS;
1650 + break;
1651 + case USB_ENDPOINT_XFER_ISOC:
1652 + tmp = (max_pkt_len << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
1653 + | (mult << EP_QUEUE_HEAD_MULT_POS);
1654 + break;
1655 + case USB_ENDPOINT_XFER_BULK:
1656 + case USB_ENDPOINT_XFER_INT:
1657 + tmp = max_pkt_len << EP_QUEUE_HEAD_MAX_PKT_LEN_POS;
1658 + break;
1659 + default:
1660 + VDBG("error ep type is %d", ep_type);
1661 + return;
1662 + }
1663 + if (zlt)
1664 + tmp |= EP_QUEUE_HEAD_ZLT_SEL;
1665 + p_QH->max_pkt_length = cpu_to_hc32(tmp);
1666 +
1667 + return;
1668 +}
1669 +
1670 +/* Setup qh structure and ep register for ep0. */
1671 +static void ep0_setup(struct fsl_udc *udc)
1672 +{
1673 + /* the intialization of an ep includes: fields in QH, Regs,
1674 + * fsl_ep struct */
1675 + struct_ep_qh_setup(udc, 0, USB_RECV, USB_ENDPOINT_XFER_CONTROL,
1676 + USB_MAX_CTRL_PAYLOAD, 0, 0);
1677 + struct_ep_qh_setup(udc, 0, USB_SEND, USB_ENDPOINT_XFER_CONTROL,
1678 + USB_MAX_CTRL_PAYLOAD, 0, 0);
1679 + dr_ep_setup(0, USB_RECV, USB_ENDPOINT_XFER_CONTROL);
1680 + dr_ep_setup(0, USB_SEND, USB_ENDPOINT_XFER_CONTROL);
1681 +
1682 + return;
1683 +
1684 +}
1685 +
1686 +/***********************************************************************
1687 + Endpoint Management Functions
1688 +***********************************************************************/
1689 +
1690 +/*-------------------------------------------------------------------------
1691 + * when configurations are set, or when interface settings change
1692 + * for example the do_set_interface() in gadget layer,
1693 + * the driver will enable or disable the relevant endpoints
1694 + * ep0 doesn't use this routine. It is always enabled.
1695 +-------------------------------------------------------------------------*/
1696 +static int fsl_ep_enable(struct usb_ep *_ep,
1697 + const struct usb_endpoint_descriptor *desc)
1698 +{
1699 + struct fsl_udc *udc = NULL;
1700 + struct fsl_ep *ep = NULL;
1701 + unsigned short max = 0;
1702 + unsigned char mult = 0, zlt;
1703 + int retval = -EINVAL;
1704 + unsigned long flags = 0;
1705 +
1706 + ep = container_of(_ep, struct fsl_ep, ep);
1707 +
1708 + /* catch various bogus parameters */
1709 + if (!_ep || !desc || ep->desc
1710 + || (desc->bDescriptorType != USB_DT_ENDPOINT))
1711 + return -EINVAL;
1712 +
1713 + udc = ep->udc;
1714 +
1715 + if (!udc->driver || (udc->gadget.speed == USB_SPEED_UNKNOWN))
1716 + return -ESHUTDOWN;
1717 +
1718 + max = le16_to_cpu(desc->wMaxPacketSize);
1719 +
1720 + /* Disable automatic zlp generation. Driver is reponsible to indicate
1721 + * explicitly through req->req.zero. This is needed to enable multi-td
1722 + * request. */
1723 + zlt = 1;
1724 +
1725 + /* Assume the max packet size from gadget is always correct */
1726 + switch (desc->bmAttributes & 0x03) {
1727 + case USB_ENDPOINT_XFER_CONTROL:
1728 + case USB_ENDPOINT_XFER_BULK:
1729 + case USB_ENDPOINT_XFER_INT:
1730 + /* mult = 0. Execute N Transactions as demonstrated by
1731 + * the USB variable length packet protocol where N is
1732 + * computed using the Maximum Packet Length (dQH) and
1733 + * the Total Bytes field (dTD) */
1734 + mult = 0;
1735 + break;
1736 + case USB_ENDPOINT_XFER_ISOC:
1737 + /* Calculate transactions needed for high bandwidth iso */
1738 + mult = (unsigned char)(1 + ((max >> 11) & 0x03));
1739 + max = max & 0x8ff; /* bit 0~10 */
1740 + /* 3 transactions at most */
1741 + if (mult > 3)
1742 + goto en_done;
1743 + break;
1744 + default:
1745 + goto en_done;
1746 + }
1747 +
1748 + spin_lock_irqsave(&udc->lock, flags);
1749 + ep->ep.maxpacket = max;
1750 + ep->desc = desc;
1751 + ep->stopped = 0;
1752 +
1753 + /* Controller related setup */
1754 + /* Init EPx Queue Head (Ep Capabilites field in QH
1755 + * according to max, zlt, mult) */
1756 + struct_ep_qh_setup(udc, (unsigned char) ep_index(ep),
1757 + (unsigned char) ((desc->bEndpointAddress & USB_DIR_IN)
1758 + ? USB_SEND : USB_RECV),
1759 + (unsigned char) (desc->bmAttributes
1760 + & USB_ENDPOINT_XFERTYPE_MASK),
1761 + max, zlt, mult);
1762 +
1763 + /* Init endpoint ctrl register */
1764 + dr_ep_setup((unsigned char) ep_index(ep),
1765 + (unsigned char) ((desc->bEndpointAddress & USB_DIR_IN)
1766 + ? USB_SEND : USB_RECV),
1767 + (unsigned char) (desc->bmAttributes
1768 + & USB_ENDPOINT_XFERTYPE_MASK));
1769 +
1770 + spin_unlock_irqrestore(&udc->lock, flags);
1771 + retval = 0;
1772 +
1773 + VDBG("enabled %s (ep%d%s) maxpacket %d", ep->ep.name,
1774 + ep->desc->bEndpointAddress & 0x0f,
1775 + (desc->bEndpointAddress & USB_DIR_IN)
1776 + ? "in" : "out", max);
1777 +en_done:
1778 + return retval;
1779 +}
1780 +
1781 +/*---------------------------------------------------------------------
1782 + * @ep : the ep being unconfigured. May not be ep0
1783 + * Any pending and uncomplete req will complete with status (-ESHUTDOWN)
1784 +*---------------------------------------------------------------------*/
1785 +static int fsl_ep_disable(struct usb_ep *_ep)
1786 +{
1787 + struct fsl_udc *udc = NULL;
1788 + struct fsl_ep *ep = NULL;
1789 + unsigned long flags = 0;
1790 + u32 epctrl;
1791 + int ep_num;
1792 +
1793 + ep = container_of(_ep, struct fsl_ep, ep);
1794 + if (!_ep || !ep->desc) {
1795 + pr_debug("udc: %s not enabled\n", _ep ? ep->ep.name : NULL);
1796 + return -EINVAL;
1797 + }
1798 +
1799 + /* disable ep on controller */
1800 + ep_num = ep_index(ep);
1801 + epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
1802 + if (ep_is_in(ep))
1803 + epctrl &= ~EPCTRL_TX_ENABLE;
1804 + else
1805 + epctrl &= ~EPCTRL_RX_ENABLE;
1806 + fsl_writel(epctrl, &dr_regs->endptctrl[ep_num]);
1807 +
1808 + udc = (struct fsl_udc *)ep->udc;
1809 + spin_lock_irqsave(&udc->lock, flags);
1810 +
1811 + /* nuke all pending requests (does flush) */
1812 + nuke(ep, -ESHUTDOWN);
1813 +
1814 + ep->desc = 0;
1815 + ep->stopped = 1;
1816 + spin_unlock_irqrestore(&udc->lock, flags);
1817 +
1818 + pr_debug("udc: disabled %s OK\n", _ep->name);
1819 + return 0;
1820 +}
1821 +
1822 +/*---------------------------------------------------------------------
1823 + * allocate a request object used by this endpoint
1824 + * the main operation is to insert the req->queue to the eq->queue
1825 + * Returns the request, or null if one could not be allocated
1826 +*---------------------------------------------------------------------*/
1827 +static struct usb_request *
1828 +fsl_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
1829 +{
1830 + struct fsl_req *req = NULL;
1831 +
1832 + req = kzalloc(sizeof *req, gfp_flags);
1833 + if (!req)
1834 + return NULL;
1835 +
1836 + req->req.dma = DMA_ADDR_INVALID;
1837 + pr_debug("udc: req=0x%p set req.dma=0x%x\n", req, req->req.dma);
1838 + INIT_LIST_HEAD(&req->queue);
1839 +
1840 + return &req->req;
1841 +}
1842 +
1843 +static void fsl_free_request(struct usb_ep *_ep, struct usb_request *_req)
1844 +{
1845 + struct fsl_req *req;
1846 +
1847 + req = container_of(_req, struct fsl_req, req);
1848 + pr_debug("udc: req=0x%p\n", req);
1849 +
1850 + if (_req)
1851 + kfree(req);
1852 +}
1853 +
1854 +/*-------------------------------------------------------------------------*/
1855 +static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req)
1856 +{
1857 + int i = ep_index(ep) * 2 + ep_is_in(ep);
1858 + u32 temp, bitmask, tmp_stat;
1859 + struct ep_queue_head *dQH = &ep->udc->ep_qh[i];
1860 +
1861 + pr_debug("udc: queue req=0x%p to ep index %d\n", req, i);
1862 +
1863 + bitmask = ep_is_in(ep)
1864 + ? (1 << (ep_index(ep) + 16))
1865 + : (1 << (ep_index(ep)));
1866 +
1867 + /* check if the pipe is empty */
1868 + if (!(list_empty(&ep->queue))) {
1869 + /* Add td to the end */
1870 + struct fsl_req *lastreq;
1871 + lastreq = list_entry(ep->queue.prev, struct fsl_req, queue);
1872 + lastreq->tail->next_td_ptr =
1873 + cpu_to_hc32(req->head->td_dma & DTD_ADDR_MASK);
1874 + /* Read prime bit, if 1 goto done */
1875 + if (fsl_readl(&dr_regs->endpointprime) & bitmask)
1876 + goto out;
1877 +
1878 + do {
1879 + /* Set ATDTW bit in USBCMD */
1880 + temp = fsl_readl(&dr_regs->usbcmd);
1881 + fsl_writel(temp | USB_CMD_ATDTW, &dr_regs->usbcmd);
1882 +
1883 + /* Read correct status bit */
1884 + tmp_stat = fsl_readl(&dr_regs->endptstatus) & bitmask;
1885 +
1886 + } while (!(fsl_readl(&dr_regs->usbcmd) & USB_CMD_ATDTW));
1887 +
1888 + /* Write ATDTW bit to 0 */
1889 + temp = fsl_readl(&dr_regs->usbcmd);
1890 + fsl_writel(temp & ~USB_CMD_ATDTW, &dr_regs->usbcmd);
1891 +
1892 + if (tmp_stat)
1893 + goto out;
1894 + }
1895 +
1896 + /* Write dQH next pointer and terminate bit to 0 */
1897 + temp = req->head->td_dma & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
1898 + dQH->next_dtd_ptr = cpu_to_hc32(temp);
1899 +
1900 + /* Clear active and halt bit */
1901 + temp = cpu_to_hc32(~(EP_QUEUE_HEAD_STATUS_ACTIVE
1902 + | EP_QUEUE_HEAD_STATUS_HALT));
1903 + dQH->size_ioc_int_sts &= temp;
1904 +
1905 + /* Prime endpoint by writing 1 to ENDPTPRIME */
1906 + temp = ep_is_in(ep)
1907 + ? (1 << (ep_index(ep) + 16))
1908 + : (1 << (ep_index(ep)));
1909 + fsl_writel(temp, &dr_regs->endpointprime);
1910 +out:
1911 + return 0;
1912 +}
1913 +
1914 +/* Fill in the dTD structure
1915 + * @req: request that the transfer belongs to
1916 + * @length: return actually data length of the dTD
1917 + * @dma: return dma address of the dTD
1918 + * @is_last: return flag if it is the last dTD of the request
1919 + * return: pointer to the built dTD */
1920 +static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length,
1921 + dma_addr_t *dma, int *is_last)
1922 +{
1923 + u32 swap_temp;
1924 + struct ep_td_struct *dtd;
1925 +
1926 + /* how big will this transfer be? */
1927 + *length = min(req->req.length - req->req.actual,
1928 + (unsigned)EP_MAX_LENGTH_TRANSFER);
1929 +
1930 + dtd = dma_pool_alloc(udc_controller->td_pool, GFP_KERNEL, dma);
1931 + if (dtd == NULL)
1932 + return dtd;
1933 +
1934 + dtd->td_dma = *dma;
1935 + /* Clear reserved field */
1936 + swap_temp = hc32_to_cpu(dtd->size_ioc_sts);
1937 + swap_temp &= ~DTD_RESERVED_FIELDS;
1938 + dtd->size_ioc_sts = cpu_to_hc32(swap_temp);
1939 +
1940 + /* Init all of buffer page pointers */
1941 + swap_temp = (u32) (req->req.dma + req->req.actual);
1942 + dtd->buff_ptr0 = cpu_to_hc32(swap_temp);
1943 + dtd->buff_ptr1 = cpu_to_hc32(swap_temp + 0x1000);
1944 + dtd->buff_ptr2 = cpu_to_hc32(swap_temp + 0x2000);
1945 + dtd->buff_ptr3 = cpu_to_hc32(swap_temp + 0x3000);
1946 + dtd->buff_ptr4 = cpu_to_hc32(swap_temp + 0x4000);
1947 +
1948 + req->req.actual += *length;
1949 +
1950 + /* zlp is needed if req->req.zero is set */
1951 + if (req->req.zero) {
1952 + if (*length == 0 || (*length % req->ep->ep.maxpacket) != 0)
1953 + *is_last = 1;
1954 + else
1955 + *is_last = 0;
1956 + } else if (req->req.length == req->req.actual)
1957 + *is_last = 1;
1958 + else
1959 + *is_last = 0;
1960 +
1961 + if ((*is_last) == 0)
1962 + VDBG("multi-dtd request!\n");
1963 + /* Fill in the transfer size; set active bit */
1964 + swap_temp = ((*length << DTD_LENGTH_BIT_POS) | DTD_STATUS_ACTIVE);
1965 +
1966 + /* Enable interrupt for the last dtd of a request */
1967 + if (*is_last && !req->req.no_interrupt)
1968 + swap_temp |= DTD_IOC;
1969 +
1970 + dtd->size_ioc_sts = cpu_to_hc32(swap_temp);
1971 +
1972 + mb();
1973 +
1974 + VDBG("length = %d address= 0x%x", *length, (int)*dma);
1975 +
1976 + return dtd;
1977 +}
1978 +
1979 +/* Generate dtd chain for a request */
1980 +static int fsl_req_to_dtd(struct fsl_req *req)
1981 +{
1982 + unsigned count;
1983 + int is_last;
1984 + int is_first = 1;
1985 + struct ep_td_struct *last_dtd = NULL, *dtd;
1986 + dma_addr_t dma;
1987 +
1988 + do {
1989 + dtd = fsl_build_dtd(req, &count, &dma, &is_last);
1990 + if (dtd == NULL)
1991 + return -ENOMEM;
1992 +
1993 + if (is_first) {
1994 + is_first = 0;
1995 + req->head = dtd;
1996 + } else {
1997 + last_dtd->next_td_ptr = hc32_to_cpu(dma);
1998 + last_dtd->next_td_virt = dtd;
1999 + }
2000 + last_dtd = dtd;
2001 +
2002 + req->dtd_count++;
2003 + } while (!is_last);
2004 +
2005 + dtd->next_td_ptr = cpu_to_hc32(DTD_NEXT_TERMINATE);
2006 +
2007 + req->tail = dtd;
2008 +
2009 + return 0;
2010 +}
2011 +
2012 +/* queues (submits) an I/O request to an endpoint */
2013 +static int
2014 +fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
2015 +{
2016 + struct fsl_ep *ep = container_of(_ep, struct fsl_ep, ep);
2017 + struct fsl_req *req = container_of(_req, struct fsl_req, req);
2018 + struct fsl_udc *udc;
2019 + unsigned long flags;
2020 + int is_iso = 0;
2021 +
2022 + /* catch various bogus parameters */
2023 + if (!_req || !req->req.complete || !req->req.buf
2024 + || !list_empty(&req->queue)) {
2025 + VDBG("%s, bad params\n", __FUNCTION__);
2026 + return -EINVAL;
2027 + }
2028 + if (!_ep || (!ep->desc && ep_index(ep))) {
2029 + VDBG("%s, bad ep\n", __FUNCTION__);
2030 + return -EINVAL;
2031 + }
2032 + if (ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
2033 + if (req->req.length > ep->ep.maxpacket)
2034 + return -EMSGSIZE;
2035 + is_iso = 1;
2036 + }
2037 +
2038 + udc = ep->udc;
2039 + if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
2040 + return -ESHUTDOWN;
2041 +
2042 + req->ep = ep;
2043 +
2044 + /* map virtual address to hardware */
2045 + if (req->req.dma == DMA_ADDR_INVALID) {
2046 + req->req.dma = dma_map_single(ep->udc->gadget.dev.parent,
2047 + req->req.buf,
2048 + req->req.length, ep_is_in(ep)
2049 + ? DMA_TO_DEVICE
2050 + : DMA_FROM_DEVICE);
2051 + req->mapped = 1;
2052 + } else {
2053 + dma_sync_single_for_device(ep->udc->gadget.dev.parent,
2054 + req->req.dma, req->req.length,
2055 + ep_is_in(ep)
2056 + ? DMA_TO_DEVICE
2057 + : DMA_FROM_DEVICE);
2058 + req->mapped = 0;
2059 + }
2060 +
2061 + req->req.status = -EINPROGRESS;
2062 + req->req.actual = 0;
2063 + req->dtd_count = 0;
2064 +
2065 + spin_lock_irqsave(&udc->lock, flags);
2066 +
2067 + /* build dtds and push them to device queue */
2068 + if (!fsl_req_to_dtd(req)) {
2069 + fsl_queue_td(ep, req);
2070 + } else {
2071 + spin_unlock_irqrestore(&udc->lock, flags);
2072 + return -ENOMEM;
2073 + }
2074 +
2075 + /* Update ep0 state */
2076 + if ((ep_index(ep) == 0))
2077 + udc->ep0_state = DATA_STATE_XMIT;
2078 +
2079 + /* irq handler advances the queue */
2080 + if (req != NULL)
2081 + list_add_tail(&req->queue, &ep->queue);
2082 + spin_unlock_irqrestore(&udc->lock, flags);
2083 +
2084 + return 0;
2085 +}
2086 +
2087 +/* dequeues (cancels, unlinks) an I/O request from an endpoint */
2088 +static int fsl_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
2089 +{
2090 + struct fsl_ep *ep = container_of(_ep, struct fsl_ep, ep);
2091 + struct fsl_req *req;
2092 + unsigned long flags;
2093 + int ep_num, stopped, ret = 0;
2094 + u32 epctrl;
2095 +
2096 + if (!_ep || !_req)
2097 + return -EINVAL;
2098 +
2099 + spin_lock_irqsave(&ep->udc->lock, flags);
2100 + stopped = ep->stopped;
2101 +
2102 + /* Stop the ep before we deal with the queue */
2103 + ep->stopped = 1;
2104 + ep_num = ep_index(ep);
2105 + epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
2106 + if (ep_is_in(ep))
2107 + epctrl &= ~EPCTRL_TX_ENABLE;
2108 + else
2109 + epctrl &= ~EPCTRL_RX_ENABLE;
2110 + fsl_writel(epctrl, &dr_regs->endptctrl[ep_num]);
2111 +
2112 + /* make sure it's actually queued on this endpoint */
2113 + list_for_each_entry(req, &ep->queue, queue) {
2114 + if (&req->req == _req)
2115 + break;
2116 + }
2117 + if (&req->req != _req) {
2118 + ret = -EINVAL;
2119 + goto out;
2120 + }
2121 +
2122 + /* The request is in progress, or completed but not dequeued */
2123 + if (ep->queue.next == &req->queue) {
2124 + _req->status = -ECONNRESET;
2125 + fsl_ep_fifo_flush(_ep); /* flush current transfer */
2126 +
2127 + /* The request isn't the last request in this ep queue */
2128 + if (req->queue.next != &ep->queue) {
2129 + struct ep_queue_head *qh;
2130 + struct fsl_req *next_req;
2131 +
2132 + qh = ep->qh;
2133 + next_req = list_entry(req->queue.next, struct fsl_req,
2134 + queue);
2135 +
2136 + /* Point the QH to the first TD of next request */
2137 + fsl_writel((u32) next_req->head, &qh->curr_dtd_ptr);
2138 + }
2139 +
2140 + /* The request hasn't been processed, patch up the TD chain */
2141 + } else {
2142 + struct fsl_req *prev_req;
2143 +
2144 + prev_req = list_entry(req->queue.prev, struct fsl_req, queue);
2145 + fsl_writel(fsl_readl(&req->tail->next_td_ptr),
2146 + &prev_req->tail->next_td_ptr);
2147 +
2148 + }
2149 +
2150 + done(ep, req, -ECONNRESET);
2151 +
2152 + /* Enable EP */
2153 +out: epctrl = fsl_readl(&dr_regs->endptctrl[ep_num]);
2154 + if (ep_is_in(ep))
2155 + epctrl |= EPCTRL_TX_ENABLE;
2156 + else
2157 + epctrl |= EPCTRL_RX_ENABLE;
2158 + fsl_writel(epctrl, &dr_regs->endptctrl[ep_num]);
2159 + ep->stopped = stopped;
2160 +
2161 + spin_unlock_irqrestore(&ep->udc->lock, flags);
2162 + return ret;
2163 +}
2164 +
2165 +/*-------------------------------------------------------------------------*/
2166 +
2167 +/*-----------------------------------------------------------------
2168 + * modify the endpoint halt feature
2169 + * @ep: the non-isochronous endpoint being stalled
2170 + * @value: 1--set halt 0--clear halt
2171 + * Returns zero, or a negative error code.
2172 +*----------------------------------------------------------------*/
2173 +static int fsl_ep_set_halt(struct usb_ep *_ep, int value)
2174 +{
2175 + struct fsl_ep *ep = NULL;
2176 + unsigned long flags = 0;
2177 + int status = -EOPNOTSUPP; /* operation not supported */
2178 + unsigned char ep_dir = 0, ep_num = 0;
2179 + struct fsl_udc *udc = NULL;
2180 +
2181 + ep = container_of(_ep, struct fsl_ep, ep);
2182 + udc = ep->udc;
2183 + if (!_ep || !ep->desc) {
2184 + status = -EINVAL;
2185 + goto out;
2186 + }
2187 +
2188 + if (ep->desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
2189 + status = -EOPNOTSUPP;
2190 + goto out;
2191 + }
2192 +
2193 + /* Attempt to halt IN ep will fail if any transfer requests
2194 + * are still queue */
2195 + if (value && ep_is_in(ep) && !list_empty(&ep->queue)) {
2196 + status = -EAGAIN;
2197 + goto out;
2198 + }
2199 +
2200 + status = 0;
2201 + ep_dir = ep_is_in(ep) ? USB_SEND : USB_RECV;
2202 + ep_num = (unsigned char)(ep_index(ep));
2203 + spin_lock_irqsave(&ep->udc->lock, flags);
2204 + dr_ep_change_stall(ep_num, ep_dir, value);
2205 + spin_unlock_irqrestore(&ep->udc->lock, flags);
2206 +
2207 + if (ep_index(ep) == 0) {
2208 + udc->ep0_state = WAIT_FOR_SETUP;
2209 + udc->ep0_dir = 0;
2210 + }
2211 +out:
2212 + VDBG(" %s %s halt stat %d", ep->ep.name,
2213 + value ? "set" : "clear", status);
2214 +
2215 + return status;
2216 +}
2217 +
2218 +static void fsl_ep_fifo_flush(struct usb_ep *_ep)
2219 +{
2220 + struct fsl_ep *ep;
2221 + int ep_num, ep_dir;
2222 + u32 bits;
2223 + unsigned long timeout;
2224 +#define FSL_UDC_FLUSH_TIMEOUT 1000
2225 +
2226 + if (!_ep) {
2227 + return;
2228 + } else {
2229 + ep = container_of(_ep, struct fsl_ep, ep);
2230 + if (!ep->desc)
2231 + return;
2232 + }
2233 + ep_num = ep_index(ep);
2234 + ep_dir = ep_is_in(ep) ? USB_SEND : USB_RECV;
2235 +
2236 + if (ep_num == 0)
2237 + bits = (1 << 16) | 1;
2238 + else if (ep_dir == USB_SEND)
2239 + bits = 1 << (16 + ep_num);
2240 + else
2241 + bits = 1 << ep_num;
2242 +
2243 + timeout = jiffies + FSL_UDC_FLUSH_TIMEOUT;
2244 + do {
2245 + fsl_writel(bits, &dr_regs->endptflush);
2246 +
2247 + /* Wait until flush complete */
2248 + while (fsl_readl(&dr_regs->endptflush)) {
2249 + if (time_after(jiffies, timeout)) {
2250 + ERR("ep flush timeout\n");
2251 + return;
2252 + }
2253 + cpu_relax();
2254 + }
2255 + /* See if we need to flush again */
2256 + } while (fsl_readl(&dr_regs->endptstatus) & bits);
2257 +}
2258 +
2259 +static struct usb_ep_ops fsl_ep_ops = {
2260 + .enable = fsl_ep_enable,
2261 + .disable = fsl_ep_disable,
2262 +
2263 + .alloc_request = fsl_alloc_request,
2264 + .free_request = fsl_free_request,
2265 +
2266 + .queue = fsl_ep_queue,
2267 + .dequeue = fsl_ep_dequeue,
2268 +
2269 + .set_halt = fsl_ep_set_halt,
2270 + .fifo_flush = fsl_ep_fifo_flush, /* flush fifo */
2271 +};
2272 +
2273 +/*-------------------------------------------------------------------------
2274 + Gadget Driver Layer Operations
2275 +-------------------------------------------------------------------------*/
2276 +
2277 +/*----------------------------------------------------------------------
2278 + * Get the current frame number (from DR frame_index Reg )
2279 + *----------------------------------------------------------------------*/
2280 +static int fsl_get_frame(struct usb_gadget *gadget)
2281 +{
2282 + return (int)(fsl_readl(&dr_regs->frindex) & USB_FRINDEX_MASKS);
2283 +}
2284 +
2285 +/*-----------------------------------------------------------------------
2286 + * Tries to wake up the host connected to this gadget
2287 + -----------------------------------------------------------------------*/
2288 +static int fsl_wakeup(struct usb_gadget *gadget)
2289 +{
2290 + struct fsl_udc *udc = container_of(gadget, struct fsl_udc, gadget);
2291 + u32 portsc;
2292 +
2293 + /* Remote wakeup feature not enabled by host */
2294 + if (!udc->remote_wakeup)
2295 + return -ENOTSUPP;
2296 +
2297 + portsc = fsl_readl(&dr_regs->portsc1);
2298 + /* not suspended? */
2299 + if (!(portsc & PORTSCX_PORT_SUSPEND))
2300 + return 0;
2301 + /* trigger force resume */
2302 + portsc |= PORTSCX_PORT_FORCE_RESUME;
2303 + fsl_writel(portsc, &dr_regs->portsc1);
2304 + return 0;
2305 +}
2306 +
2307 +static int can_pullup(struct fsl_udc *udc)
2308 +{
2309 + return udc->driver && udc->softconnect && udc->vbus_active;
2310 +}
2311 +
2312 +/*
2313 + * Notify controller that VBUS is powered, Called by whatever
2314 + * detects VBUS sessions
2315 + * @param gadger gadger pointer
2316 + * @param is_active is active?
2317 + * @return Returns zero on success , or a negative error code
2318 + */
2319 +static int fsl_vbus_session(struct usb_gadget *gadget, int is_active)
2320 +{
2321 + struct fsl_udc *udc;
2322 + unsigned long flags;
2323 +
2324 + udc = container_of(gadget, struct fsl_udc, gadget);
2325 + spin_lock_irqsave(&udc->lock, flags);
2326 +
2327 + pr_debug("udc: VBUS %s\n", is_active ? "on" : "off");
2328 + udc->vbus_active = (is_active != 0);
2329 +
2330 + if (can_pullup(udc)) {
2331 + pullup_enable(udc);
2332 + udc_controller->usb_state = USB_STATE_ATTACHED;
2333 + } else {
2334 + pullup_disable(udc);
2335 + udc_controller->usb_state = USB_STATE_NOTATTACHED;
2336 + }
2337 + udc_controller->ep0_state = WAIT_FOR_SETUP;
2338 + udc_controller->ep0_dir = 0;
2339 +
2340 + spin_unlock_irqrestore(&udc->lock, flags);
2341 + return 0;
2342 +}
2343 +
2344 +/* constrain controller's VBUS power usage
2345 + * This call is used by gadget drivers during SET_CONFIGURATION calls,
2346 + * reporting how much power the device may consume. For example, this
2347 + * could affect how quickly batteries are recharged.
2348 + *
2349 + * Returns zero on success, else negative errno.
2350 + */
2351 +static int fsl_vbus_draw(struct usb_gadget *gadget, unsigned mA)
2352 +{
2353 +#ifdef CONFIG_USB_OTG
2354 + struct fsl_udc *udc;
2355 +
2356 + udc = container_of(gadget, struct fsl_udc, gadget);
2357 +
2358 + if (udc->transceiver)
2359 + return otg_set_power(udc->transceiver, mA);
2360 +#endif
2361 + return -ENOTSUPP;
2362 +}
2363 +
2364 +/*
2365 + * Change Data+ pullup status
2366 + * this func is used by usb_gadget_connect/disconnet
2367 + */
2368 +static int fsl_pullup(struct usb_gadget *gadget, int is_on)
2369 +{
2370 + struct fsl_udc *udc;
2371 +
2372 + udc = container_of(gadget, struct fsl_udc, gadget);
2373 + udc->softconnect = (is_on != 0);
2374 + if (can_pullup(udc))
2375 + fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP),
2376 + &dr_regs->usbcmd);
2377 + else
2378 + fsl_writel((fsl_readl(&dr_regs->usbcmd) & ~USB_CMD_RUN_STOP),
2379 + &dr_regs->usbcmd);
2380 +
2381 + return 0;
2382 +}
2383 +
2384 +/* defined in usb_gadget.h */
2385 +static struct usb_gadget_ops fsl_gadget_ops = {
2386 + .get_frame = fsl_get_frame,
2387 + .wakeup = fsl_wakeup,
2388 + .vbus_session = fsl_vbus_session,
2389 + .vbus_draw = fsl_vbus_draw,
2390 + .pullup = fsl_pullup,
2391 +};
2392 +
2393 +/* Set protocol stall on ep0, protocol stall will automatically be cleared
2394 + on new transaction */
2395 +static void ep0stall(struct fsl_udc *udc)
2396 +{
2397 + u32 tmp;
2398 +
2399 + /* must set tx and rx to stall at the same time */
2400 + tmp = fsl_readl(&dr_regs->endptctrl[0]);
2401 + tmp |= EPCTRL_TX_EP_STALL | EPCTRL_RX_EP_STALL;
2402 + fsl_writel(tmp, &dr_regs->endptctrl[0]);
2403 + udc->ep0_state = WAIT_FOR_SETUP;
2404 + udc->ep0_dir = 0;
2405 +}
2406 +
2407 +/* Prime a status phase for ep0 */
2408 +static int ep0_prime_status(struct fsl_udc *udc, int direction)
2409 +{
2410 + struct fsl_req *req = udc->status_req;
2411 + struct fsl_ep *ep;
2412 + int status = 0;
2413 +
2414 + if (direction == EP_DIR_IN)
2415 + udc->ep0_dir = USB_DIR_IN;
2416 + else
2417 + udc->ep0_dir = USB_DIR_OUT;
2418 +
2419 + ep = &udc->eps[0];
2420 + udc->ep0_state = WAIT_FOR_OUT_STATUS;
2421 +
2422 + req->ep = ep;
2423 + req->req.length = 0;
2424 + req->req.status = -EINPROGRESS;
2425 + req->req.actual = 0;
2426 + req->req.complete = NULL;
2427 + req->dtd_count = 0;
2428 +
2429 + if (fsl_req_to_dtd(req) == 0)
2430 + status = fsl_queue_td(ep, req);
2431 + else
2432 + return -ENOMEM;
2433 +
2434 + if (status)
2435 + ERR("Can't queue ep0 status request \n");
2436 + list_add_tail(&req->queue, &ep->queue);
2437 +
2438 + return status;
2439 +}
2440 +
2441 +static inline int udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe)
2442 +{
2443 + struct fsl_ep *ep = get_ep_by_pipe(udc, pipe);
2444 +
2445 + if (!ep->name)
2446 + return 0;
2447 +
2448 + nuke(ep, -ESHUTDOWN);
2449 +
2450 + return 0;
2451 +}
2452 +
2453 +/*
2454 + * ch9 Set address
2455 + */
2456 +static void ch9setaddress(struct fsl_udc *udc, u16 value, u16 index, u16 length)
2457 +{
2458 + /* Save the new address to device struct */
2459 + udc->device_address = (u8) value;
2460 + /* Update usb state */
2461 + udc->usb_state = USB_STATE_ADDRESS;
2462 + /* Status phase */
2463 + if (ep0_prime_status(udc, EP_DIR_IN))
2464 + ep0stall(udc);
2465 +}
2466 +
2467 +/*
2468 + * ch9 Get status
2469 + */
2470 +static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value,
2471 + u16 index, u16 length)
2472 +{
2473 + u16 tmp = 0; /* Status, cpu endian */
2474 +
2475 + struct fsl_req *req;
2476 + struct fsl_ep *ep;
2477 + int status = 0;
2478 +
2479 + ep = &udc->eps[0];
2480 +
2481 + if ((request_type & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
2482 + /* Get device status */
2483 + tmp = 1 << USB_DEVICE_SELF_POWERED;
2484 + tmp |= udc->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP;
2485 + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_INTERFACE) {
2486 + /* Get interface status */
2487 + /* We don't have interface information in udc driver */
2488 + tmp = 0;
2489 + } else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) {
2490 + /* Get endpoint status */
2491 + struct fsl_ep *target_ep;
2492 +
2493 + target_ep = get_ep_by_pipe(udc, get_pipe_by_windex(index));
2494 +
2495 + /* stall if endpoint doesn't exist */
2496 + if (!target_ep->desc)
2497 + goto stall;
2498 + tmp = dr_ep_get_stall(ep_index(target_ep), ep_is_in(target_ep))
2499 + << USB_ENDPOINT_HALT;
2500 + }
2501 +
2502 + udc->ep0_dir = USB_DIR_IN;
2503 + /* Borrow the per device status_req */
2504 + req = udc->status_req;
2505 + /* Fill in the reqest structure */
2506 + *((u16 *) req->req.buf) = cpu_to_le16(tmp);
2507 + req->ep = ep;
2508 + req->req.length = 2;
2509 + req->req.status = -EINPROGRESS;
2510 + req->req.actual = 0;
2511 + req->req.complete = NULL;
2512 + req->dtd_count = 0;
2513 +
2514 + /* prime the data phase */
2515 + if ((fsl_req_to_dtd(req) == 0))
2516 + status = fsl_queue_td(ep, req);
2517 + else /* no mem */
2518 + goto stall;
2519 +
2520 + if (status) {
2521 + ERR("Can't respond to getstatus request \n");
2522 + goto stall;
2523 + }
2524 + list_add_tail(&req->queue, &ep->queue);
2525 + udc->ep0_state = DATA_STATE_XMIT;
2526 + return;
2527 +stall:
2528 + ep0stall(udc);
2529 +}
2530 +
2531 +static void ch9setconfig(struct fsl_udc *udc, u16 value, u16 index,
2532 + u16 length)
2533 +{
2534 + pr_debug("udc: 1 calling gadget driver->setup\n");
2535 + udc->ep0_dir = USB_DIR_IN;
2536 + if (udc->driver->setup(&udc->gadget, &udc->local_setup_buff) >= 0) {
2537 + /* gadget layer deal with the status phase */
2538 + udc->usb_state = USB_STATE_CONFIGURED;
2539 + udc->ep0_state = WAIT_FOR_OUT_STATUS;
2540 + pr_debug("udc: ep0_state now WAIT_FOR_OUT_STATUS\n");
2541 + }
2542 +}
2543 +
2544 +static void setup_received_irq(struct fsl_udc *udc,
2545 + struct usb_ctrlrequest *setup)
2546 +{
2547 + u32 tmp;
2548 + u16 ptc = 0; /* port test control */
2549 + int handled = 1; /* set to zero if we do not handle the message,
2550 + and should pass it to the gadget driver */
2551 +
2552 + /*
2553 + * gadget drivers expect the setup pkt to be in wire format,
2554 + * so leave it alone and make local copies of stuff we need.
2555 + */
2556 + u16 wValue = le16_to_cpu(setup->wValue);
2557 + u16 wIndex = le16_to_cpu(setup->wIndex);
2558 + u16 wLength = le16_to_cpu(setup->wLength);
2559 +
2560 +
2561 + pr_debug("udc: request=0x%x\n", setup->bRequest);
2562 +
2563 + udc_reset_ep_queue(udc, 0);
2564 +
2565 + /* We asume setup only occurs on EP0 */
2566 + if (setup->bRequestType & USB_DIR_IN)
2567 + udc->ep0_dir = USB_DIR_IN;
2568 + else
2569 + udc->ep0_dir = USB_DIR_OUT;
2570 +
2571 + if ((setup->bRequestType & USB_TYPE_MASK) == USB_TYPE_CLASS) {
2572 + /* handle class requests */
2573 + switch (setup->bRequest) {
2574 +
2575 + case USB_BULK_RESET_REQUEST:
2576 + udc->ep0_dir = USB_DIR_IN;
2577 + if (udc->driver->setup(&udc->gadget,
2578 + &udc->local_setup_buff) >= 0) {
2579 + udc->ep0_state = WAIT_FOR_SETUP;
2580 + pr_debug("udc: ep0_state now WAIT_FOR_SETUP\n");
2581 + }
2582 + break;
2583 +
2584 + default:
2585 + handled = 0;
2586 + break;
2587 + }
2588 + } else if ((setup->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
2589 + /* handle standard requests */
2590 + switch (setup->bRequest) {
2591 +
2592 + case USB_REQ_GET_STATUS:
2593 + if ((setup->
2594 + bRequestType & (USB_DIR_IN | USB_TYPE_STANDARD))
2595 + != (USB_DIR_IN | USB_TYPE_STANDARD))
2596 + break;
2597 + ch9getstatus(udc, setup->bRequestType, wValue, wIndex,
2598 + wLength);
2599 + break;
2600 +
2601 + case USB_REQ_SET_ADDRESS:
2602 + if (setup->bRequestType !=
2603 + (USB_DIR_OUT | USB_TYPE_STANDARD |
2604 + USB_RECIP_DEVICE))
2605 + break;
2606 + ch9setaddress(udc, wValue, wIndex, wLength);
2607 + break;
2608 +
2609 + case USB_REQ_SET_CONFIGURATION:
2610 + if (setup->bRequestType !=
2611 + (USB_DIR_OUT | USB_TYPE_STANDARD |
2612 + USB_RECIP_DEVICE))
2613 + break;
2614 + /* gadget layer take over the status phase */
2615 + ch9setconfig(udc, wValue, wIndex, wLength);
2616 + break;
2617 + case USB_REQ_SET_INTERFACE:
2618 + if (setup->bRequestType !=
2619 + (USB_DIR_OUT | USB_TYPE_STANDARD |
2620 + USB_RECIP_INTERFACE))
2621 + break;
2622 + udc->ep0_dir = USB_DIR_IN;
2623 + if (udc->driver->setup(&udc->gadget,
2624 + &udc->local_setup_buff) >= 0)
2625 + /* gadget layer take over the status phase */
2626 + break;
2627 + /* Requests with no data phase */
2628 + case USB_REQ_CLEAR_FEATURE:
2629 + case USB_REQ_SET_FEATURE:
2630 + { /* status transaction */
2631 + int rc = -EOPNOTSUPP;
2632 +
2633 + if ((setup->bRequestType & USB_TYPE_MASK) !=
2634 + USB_TYPE_STANDARD)
2635 + break;
2636 +
2637 + /* we only support set/clear feature for
2638 + * endpoint */
2639 + if (setup->bRequestType == USB_RECIP_ENDPOINT) {
2640 + int dir = (wIndex & 0x0080) ?
2641 + EP_DIR_IN : EP_DIR_OUT;
2642 + int num = (wIndex & 0x000f);
2643 + struct fsl_ep *ep;
2644 +
2645 + if (wValue != 0
2646 + || wLength != 0
2647 + || (num * 2 + dir) > udc->max_ep)
2648 + break;
2649 + ep = &udc->eps[num * 2 + dir];
2650 +
2651 + if (setup->bRequest ==
2652 + USB_REQ_SET_FEATURE) {
2653 + pr_debug("udc: udc: SET_FEATURE"
2654 + " doing set_halt\n");
2655 + rc = fsl_ep_set_halt(&ep-> ep,
2656 + 1);
2657 + } else {
2658 + pr_debug("udc: CLEAR_FEATURE"
2659 + " doing clear_halt\n");
2660 + rc = fsl_ep_set_halt(&ep-> ep,
2661 + 0);
2662 + }
2663 +
2664 + } else if (setup->bRequestType ==
2665 + USB_RECIP_DEVICE) {
2666 + if (setup->bRequest ==
2667 + USB_REQ_SET_FEATURE) {
2668 + ptc = wIndex >> 8;
2669 + rc = 0;
2670 + }
2671 + if (!udc->gadget.is_otg)
2672 + break;
2673 + else if (setup->bRequest ==
2674 + USB_DEVICE_B_HNP_ENABLE)
2675 + udc->gadget.b_hnp_enable = 1;
2676 + else if (setup->bRequest ==
2677 + USB_DEVICE_A_HNP_SUPPORT)
2678 + udc->gadget.a_hnp_support = 1;
2679 + else if (setup->bRequest ==
2680 + USB_DEVICE_A_ALT_HNP_SUPPORT)
2681 + udc->gadget.a_alt_hnp_support =
2682 + 1;
2683 + rc = 0;
2684 + }
2685 + if (rc == 0) {
2686 + /* send status only if
2687 + * fsl_ep_set_halt success */
2688 + if (ep0_prime_status(udc, EP_DIR_IN))
2689 + ep0stall(udc);
2690 + }
2691 + break;
2692 + }
2693 + default:
2694 + handled = 0;
2695 + break;
2696 + }
2697 + } else {
2698 + /* vendor requests */
2699 + handled = 0;
2700 + }
2701 +
2702 + if (!handled) {
2703 + if (udc->driver->setup(&udc->gadget, &udc->local_setup_buff)
2704 + != 0) {
2705 + ep0stall(udc);
2706 + } else if (setup->bRequestType & USB_DIR_IN) {
2707 + udc->ep0_state = DATA_STATE_XMIT;
2708 + pr_debug("udc: ep0_state now DATA_STATE_XMIT\n");
2709 + } else {
2710 + udc->ep0_state = DATA_STATE_RECV;
2711 + pr_debug("udc: ep0_state now DATA_STATE_RECV\n");
2712 + }
2713 + }
2714 +
2715 + if (ptc) {
2716 + tmp =fsl_readl(&dr_regs->portsc1) | ptc << 16;
2717 + fsl_writel(tmp, &dr_regs->portsc1);
2718 + pr_debug("udc: switch to test mode.\n");
2719 + }
2720 +}
2721 +
2722 +/* Process request for Data or Status phase of ep0
2723 + * prime status phase if needed */
2724 +static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0,
2725 + struct fsl_req *req)
2726 +{
2727 + if (udc->usb_state == USB_STATE_ADDRESS) {
2728 + /* Set the new address */
2729 + u32 new_address = (u32) udc->device_address;
2730 + fsl_writel(new_address << USB_DEVICE_ADDRESS_BIT_POS,
2731 + &dr_regs->deviceaddr);
2732 + }
2733 +
2734 + done(ep0, req, 0);
2735 +
2736 + switch (udc->ep0_state) {
2737 + case DATA_STATE_XMIT:
2738 + /* receive status phase */
2739 + if (ep0_prime_status(udc, EP_DIR_OUT))
2740 + ep0stall(udc);
2741 + break;
2742 + case DATA_STATE_RECV:
2743 + /* send status phase */
2744 + if (ep0_prime_status(udc, EP_DIR_IN))
2745 + ep0stall(udc);
2746 + break;
2747 + case WAIT_FOR_OUT_STATUS:
2748 + udc->ep0_state = WAIT_FOR_SETUP;
2749 + break;
2750 + case WAIT_FOR_SETUP:
2751 + ERR("Unexpect ep0 packets \n");
2752 + break;
2753 + default:
2754 + ep0stall(udc);
2755 + break;
2756 + }
2757 +}
2758 +
2759 +/* Tripwire mechanism to ensure a setup packet payload is extracted without
2760 + * being corrupted by another incoming setup packet */
2761 +static void tripwire_handler(struct fsl_udc *udc, u8 ep_num, u8 *buffer_ptr)
2762 +{
2763 + u32 temp;
2764 + struct ep_queue_head *qh;
2765 + struct fsl_usb2_platform_data *pdata = udc->pdata;
2766 +
2767 + qh = &udc->ep_qh[ep_num * 2 + EP_DIR_OUT];
2768 +
2769 + /* Clear bit in ENDPTSETUPSTAT */
2770 + temp = fsl_readl(&dr_regs->endptsetupstat);
2771 + fsl_writel(temp | (1 << ep_num), &dr_regs->endptsetupstat);
2772 +
2773 + /* while a hazard exists when setup package arrives */
2774 + do {
2775 + /* Set Setup Tripwire */
2776 + temp = fsl_readl(&dr_regs->usbcmd);
2777 + fsl_writel(temp | USB_CMD_SUTW, &dr_regs->usbcmd);
2778 +
2779 + /* Copy the setup packet to local buffer */
2780 + if (pdata->le_setup_buf) {
2781 + u32 *p = (u32 *)buffer_ptr;
2782 + u32 *s = (u32 *)qh->setup_buffer;
2783 +
2784 + /* Convert little endian setup buffer to CPU endian */
2785 + *p++ = le32_to_cpu(*s++);
2786 + *p = le32_to_cpu(*s);
2787 + } else {
2788 + memcpy(buffer_ptr, (u8 *) qh->setup_buffer, 8);
2789 + }
2790 + } while (!(fsl_readl(&dr_regs->usbcmd) & USB_CMD_SUTW));
2791 +
2792 + /* Clear Setup Tripwire */
2793 + temp = fsl_readl(&dr_regs->usbcmd);
2794 + fsl_writel(temp & ~USB_CMD_SUTW, &dr_regs->usbcmd);
2795 +}
2796 +
2797 +/* process-ep_req(): free the completed Tds for this req */
2798 +static int process_ep_req(struct fsl_udc *udc, int pipe,
2799 + struct fsl_req *curr_req)
2800 +{
2801 + struct ep_td_struct *curr_td;
2802 + int td_complete, actual, remaining_length, j, tmp;
2803 + int status = 0;
2804 + int errors = 0;
2805 + struct ep_queue_head *curr_qh = &udc->ep_qh[pipe];
2806 + int direction = pipe % 2;
2807 +
2808 + curr_td = curr_req->head;
2809 + td_complete = 0;
2810 + actual = curr_req->req.length;
2811 +
2812 + for (j = 0; j < curr_req->dtd_count; j++) {
2813 + remaining_length = (hc32_to_cpu(curr_td->size_ioc_sts)
2814 + & DTD_PACKET_SIZE)
2815 + >> DTD_LENGTH_BIT_POS;
2816 + actual -= remaining_length;
2817 +
2818 + (errors = hc32_to_cpu(curr_td->size_ioc_sts) & DTD_ERROR_MASK);
2819 + if (errors) {
2820 + if (errors & DTD_STATUS_HALTED) {
2821 + ERR("dTD error %08x QH=%d\n", errors, pipe);
2822 + /* Clear the errors and Halt condition */
2823 + tmp = hc32_to_cpu(curr_qh->size_ioc_int_sts);
2824 + tmp &= ~errors;
2825 + curr_qh->size_ioc_int_sts = cpu_to_hc32(tmp);
2826 + status = -EPIPE;
2827 + /* FIXME: continue with next queued TD? */
2828 +
2829 + break;
2830 + }
2831 + if (errors & DTD_STATUS_DATA_BUFF_ERR) {
2832 + VDBG("Transfer overflow");
2833 + status = -EPROTO;
2834 + break;
2835 + } else if (errors & DTD_STATUS_TRANSACTION_ERR) {
2836 + VDBG("ISO error");
2837 + status = -EILSEQ;
2838 + break;
2839 + } else
2840 + ERR("Unknown error has occured (0x%x)!\r\n",
2841 + errors);
2842 +
2843 + } else if (hc32_to_cpu(curr_td->size_ioc_sts) &
2844 + DTD_STATUS_ACTIVE) {
2845 + VDBG("Request not complete");
2846 + status = REQ_UNCOMPLETE;
2847 + return status;
2848 + } else if (remaining_length) {
2849 + if (direction) {
2850 + VDBG("Transmit dTD remaining length not zero");
2851 + status = -EPROTO;
2852 + break;
2853 + } else {
2854 + td_complete++;
2855 + break;
2856 + }
2857 + } else {
2858 + td_complete++;
2859 + VDBG("dTD transmitted successful ");
2860 + }
2861 +
2862 + if (j != curr_req->dtd_count - 1)
2863 + curr_td = curr_td->next_td_virt;
2864 + }
2865 +
2866 + if (status)
2867 + return status;
2868 +
2869 + curr_req->req.actual = actual;
2870 +
2871 + return 0;
2872 +}
2873 +
2874 +/* Process a DTD completion interrupt */
2875 +static void dtd_complete_irq(struct fsl_udc *udc)
2876 +{
2877 + u32 bit_pos;
2878 + int i, ep_num, direction, bit_mask, status;
2879 + struct fsl_ep *curr_ep;
2880 + struct fsl_req *curr_req, *temp_req;
2881 +
2882 + /* Clear the bits in the register */
2883 + bit_pos = fsl_readl(&dr_regs->endptcomplete);
2884 + fsl_writel(bit_pos, &dr_regs->endptcomplete);
2885 +
2886 + if (!bit_pos)
2887 + return;
2888 +
2889 + for (i = 0; i < udc->max_ep * 2; i++) {
2890 + ep_num = i >> 1;
2891 + direction = i % 2;
2892 +
2893 + bit_mask = 1 << (ep_num + 16 * direction);
2894 +
2895 + if (!(bit_pos & bit_mask))
2896 + continue;
2897 +
2898 + curr_ep = get_ep_by_pipe(udc, i);
2899 +
2900 + /* If the ep is configured */
2901 + if (curr_ep->name == NULL) {
2902 + WARN("Invalid EP?");
2903 + continue;
2904 + }
2905 +
2906 + /* process the req queue until an uncomplete request */
2907 + list_for_each_entry_safe(curr_req, temp_req, &curr_ep->queue,
2908 + queue) {
2909 + status = process_ep_req(udc, i, curr_req);
2910 +
2911 + VDBG("status of process_ep_req= %d, ep = %d",
2912 + status, ep_num);
2913 + if (status == REQ_UNCOMPLETE)
2914 + break;
2915 + /* write back status to req */
2916 + curr_req->req.status = status;
2917 +
2918 + if (ep_num == 0) {
2919 + ep0_req_complete(udc, curr_ep, curr_req);
2920 + break;
2921 + } else {
2922 + done(curr_ep, curr_req, status);
2923 + }
2924 + }
2925 + }
2926 +}
2927 +
2928 +/* Process a port change interrupt */
2929 +static void port_change_irq(struct fsl_udc *udc)
2930 +{
2931 + u32 speed;
2932 +
2933 + VDBG("portsc=0x%x", fsl_readl(&dr_regs->portsc1) );
2934 + if (udc->bus_reset)
2935 + udc->bus_reset = 0;
2936 +
2937 + /* Bus resetting is finished */
2938 + if (!(fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET)) {
2939 + /* Get the speed */
2940 + speed = fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_SPEED_MASK;
2941 + switch (speed) {
2942 + case PORTSCX_PORT_SPEED_HIGH:
2943 + udc->gadget.speed = USB_SPEED_HIGH;
2944 + break;
2945 + case PORTSCX_PORT_SPEED_FULL:
2946 + udc->gadget.speed = USB_SPEED_FULL;
2947 + break;
2948 + case PORTSCX_PORT_SPEED_LOW:
2949 + udc->gadget.speed = USB_SPEED_LOW;
2950 + break;
2951 + default:
2952 + udc->gadget.speed = USB_SPEED_UNKNOWN;
2953 + break;
2954 + }
2955 + }
2956 +
2957 + /* Update USB state */
2958 + if (!udc->resume_state)
2959 + udc->usb_state = USB_STATE_DEFAULT;
2960 +}
2961 +
2962 +/* Process suspend interrupt */
2963 +static void suspend_irq(struct fsl_udc *udc)
2964 +{
2965 + udc->resume_state = udc->usb_state;
2966 + udc->usb_state = USB_STATE_SUSPENDED;
2967 +
2968 + /* report suspend to the driver, serial.c does not support this */
2969 + if (udc->driver->suspend)
2970 + udc->driver->suspend(&udc->gadget);
2971 +}
2972 +
2973 +static void bus_resume(struct fsl_udc *udc)
2974 +{
2975 + udc->usb_state = udc->resume_state;
2976 + udc->resume_state = 0;
2977 +
2978 + /* report resume to the driver, serial.c does not support this */
2979 + if (udc->driver->resume)
2980 + udc->driver->resume(&udc->gadget);
2981 +}
2982 +
2983 +/* Clear up all ep queues */
2984 +static int reset_queues(struct fsl_udc *udc)
2985 +{
2986 + u8 pipe;
2987 +
2988 + for (pipe = 0; pipe < udc->max_pipes; pipe++)
2989 + udc_reset_ep_queue(udc, pipe);
2990 +
2991 + /* report disconnect; the driver is already quiesced */
2992 + udc->driver->disconnect(&udc->gadget);
2993 +
2994 + return 0;
2995 +}
2996 +
2997 +/* Process reset interrupt */
2998 +static void reset_irq(struct fsl_udc *udc)
2999 +{
3000 + u32 temp;
3001 + unsigned long timeout;
3002 +
3003 + /* Clear the device address */
3004 + temp = fsl_readl(&dr_regs->deviceaddr);
3005 + fsl_writel(temp & ~USB_DEVICE_ADDRESS_MASK, &dr_regs->deviceaddr);
3006 +
3007 + udc->device_address = 0;
3008 +
3009 + /* Clear usb state */
3010 + udc->resume_state = 0;
3011 + udc->ep0_dir = 0;
3012 + udc->ep0_state = WAIT_FOR_SETUP;
3013 + udc->remote_wakeup = 0; /* default to 0 on reset */
3014 + udc->gadget.b_hnp_enable = 0;
3015 + udc->gadget.a_hnp_support = 0;
3016 + udc->gadget.a_alt_hnp_support = 0;
3017 +
3018 + /* Clear all the setup token semaphores */
3019 + temp = fsl_readl(&dr_regs->endptsetupstat);
3020 + fsl_writel(temp, &dr_regs->endptsetupstat);
3021 +
3022 + /* Clear all the endpoint complete status bits */
3023 + temp = fsl_readl(&dr_regs->endptcomplete);
3024 + fsl_writel(temp, &dr_regs->endptcomplete);
3025 +
3026 + timeout = jiffies + 100;
3027 + while (fsl_readl(&dr_regs->endpointprime)) {
3028 + /* Wait until all endptprime bits cleared */
3029 + if (time_after(jiffies, timeout)) {
3030 + ERR("Timeout for reset\n");
3031 + break;
3032 + }
3033 + cpu_relax();
3034 + }
3035 +
3036 + /* Write 1s to the flush register */
3037 + fsl_writel(0xffffffff, &dr_regs->endptflush);
3038 +
3039 + if (fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_RESET) {
3040 + VDBG("Bus reset");
3041 + /* Bus is reseting */
3042 + udc->bus_reset = 1;
3043 + /* Reset all the queues, include XD, dTD, EP queue
3044 + * head and TR Queue */
3045 + reset_queues(udc);
3046 + udc->usb_state = USB_STATE_DEFAULT;
3047 + } else {
3048 + VDBG("Controller reset");
3049 + /* initialize usb hw reg except for regs for EP, not
3050 + * touch usbintr reg */
3051 + dr_controller_setup(udc);
3052 +
3053 + /* Reset all internal used Queues */
3054 + reset_queues(udc);
3055 +
3056 + ep0_setup(udc);
3057 +
3058 + /* Enable DR IRQ reg, Set Run bit, change udc state */
3059 + dr_controller_run(udc);
3060 + udc->usb_state = USB_STATE_ATTACHED;
3061 + }
3062 +}
3063 +
3064 +/*
3065 + * USB device controller interrupt handler
3066 + */
3067 +static irqreturn_t fsl_udc_irq(int irq, void *_udc)
3068 +{
3069 + struct fsl_udc *udc = _udc;
3070 + u32 irq_src;
3071 + irqreturn_t status = IRQ_NONE;
3072 + unsigned long flags;
3073 +
3074 + /* Disable ISR for OTG host mode */
3075 + if (udc->stopped)
3076 + return IRQ_NONE;
3077 + spin_lock_irqsave(&udc->lock, flags);
3078 + irq_src = fsl_readl(&dr_regs->usbsts) & fsl_readl(&dr_regs->usbintr);
3079 + /* Clear notification bits */
3080 + fsl_writel(irq_src, &dr_regs->usbsts);
3081 +
3082 + VDBG("irq_src [0x%8x] portsc=0x%x", irq_src,
3083 + fsl_readl(&dr_regs->portsc1));
3084 +
3085 + /* Need to resume? */
3086 + if (udc->usb_state == USB_STATE_SUSPENDED)
3087 + if ((fsl_readl(&dr_regs->portsc1) & PORTSCX_PORT_SUSPEND) == 0)
3088 + bus_resume(udc);
3089 +
3090 + /* USB Interrupt */
3091 + if (irq_src & USB_STS_INT) {
3092 + VDBG("Packet int");
3093 + /* Setup package, we only support ep0 as control ep */
3094 + if (fsl_readl(&dr_regs->endptsetupstat) & EP_SETUP_STATUS_EP0) {
3095 + tripwire_handler(udc, 0,
3096 + (u8 *) (&udc->local_setup_buff));
3097 + setup_received_irq(udc, &udc->local_setup_buff);
3098 + status = IRQ_HANDLED;
3099 + }
3100 +
3101 + /* completion of dtd */
3102 + if (fsl_readl(&dr_regs->endptcomplete)) {
3103 + dtd_complete_irq(udc);
3104 + status = IRQ_HANDLED;
3105 + }
3106 + }
3107 +
3108 + /* SOF (for ISO transfer) */
3109 + if (irq_src & USB_STS_SOF) {
3110 + status = IRQ_HANDLED;
3111 + }
3112 +
3113 + /* Port Change */
3114 + if (irq_src & USB_STS_PORT_CHANGE) {
3115 + port_change_irq(udc);
3116 + status = IRQ_HANDLED;
3117 + }
3118 +
3119 + /* Reset Received */
3120 + if (irq_src & USB_STS_RESET) {
3121 + reset_irq(udc);
3122 + status = IRQ_HANDLED;
3123 + }
3124 +
3125 + /* Sleep Enable (Suspend) */
3126 + if (irq_src & USB_STS_SUSPEND) {
3127 + suspend_irq(udc);
3128 + status = IRQ_HANDLED;
3129 + }
3130 +
3131 + if (irq_src & (USB_STS_ERR | USB_STS_SYS_ERR)) {
3132 + VDBG("Error IRQ %x ", irq_src);
3133 + }
3134 +
3135 + spin_unlock_irqrestore(&udc->lock, flags);
3136 + return status;
3137 +}
3138 +
3139 +/*----------------------------------------------------------------*
3140 + * Hook to gadget drivers
3141 + * Called by initialization code of gadget drivers
3142 +*----------------------------------------------------------------*/
3143 +int usb_gadget_register_driver(struct usb_gadget_driver *driver)
3144 +{
3145 + int retval = -ENODEV;
3146 + unsigned long flags = 0;
3147 + struct fsl_udc *udc = udc_controller;
3148 +
3149 + pr_debug("udc: udc=0x%p\n", udc);
3150 +
3151 + if (!udc)
3152 + return -ENODEV;
3153 +
3154 + if (!driver || (driver->speed != USB_SPEED_FULL
3155 + && driver->speed != USB_SPEED_HIGH)
3156 + || !driver->bind || !driver->disconnect
3157 + || !driver->setup)
3158 + return -EINVAL;
3159 +
3160 + if (udc->driver)
3161 + return -EBUSY;
3162 +
3163 + /* lock is needed but whether should use this lock or another */
3164 + spin_lock_irqsave(&udc->lock, flags);
3165 +
3166 + driver->driver.bus = 0;
3167 + udc->softconnect = 1;
3168 + /* hook up the driver */
3169 + udc->driver = driver;
3170 + udc->gadget.dev.driver = &driver->driver;
3171 + spin_unlock_irqrestore(&udc->lock, flags);
3172 +
3173 + /* bind udc driver to gadget driver */
3174 + retval = driver->bind(&udc->gadget);
3175 + if (retval) {
3176 + pr_debug("bind to %s --> %d\n", driver->driver.name, retval);
3177 + udc->gadget.dev.driver = 0;
3178 + udc->driver = 0;
3179 + goto out;
3180 + }
3181 +
3182 + /* Enable DR IRQ reg and Set usbcmd reg Run bit */
3183 + if (udc->transceiver) {
3184 + /* Suspend the controller until OTG enables it */
3185 + udc_suspend(udc);
3186 + pr_debug("udc: suspend udc for OTG auto detect \n");
3187 +
3188 + /* Export udc suspend/resume call to OTG */
3189 + udc->gadget.dev.parent->driver->suspend = fsl_udc_suspend;
3190 + udc->gadget.dev.parent->driver->resume = fsl_udc_resume;
3191 +
3192 + retval = otg_set_peripheral(udc->transceiver, &udc->gadget);
3193 + if (retval < 0) {
3194 + printk(KERN_ERR "can't bind to transceiver\n");
3195 + driver->unbind(&udc->gadget);
3196 + udc->gadget.dev.driver = 0;
3197 + udc->driver = 0;
3198 + return retval;
3199 + }
3200 + } else {
3201 + /* Enable DR IRQ reg and Set usbcmd reg Run bit */
3202 + dr_controller_run(udc);
3203 + udc->usb_state = USB_STATE_ATTACHED;
3204 + udc->ep0_state = WAIT_FOR_SETUP;
3205 + pr_debug("udc: ep0_state now WAIT_FOR_SETUP\n");
3206 + udc->ep0_dir = 0;
3207 + }
3208 +
3209 + printk(KERN_INFO "%s: bind to driver %s \n", udc->gadget.name,
3210 + driver->driver.name);
3211 +
3212 +out:
3213 + return retval;
3214 +}
3215 +EXPORT_SYMBOL(usb_gadget_register_driver);
3216 +
3217 +/* Disconnect from gadget driver */
3218 +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
3219 +{
3220 + struct fsl_ep *loop_ep;
3221 + unsigned long flags;
3222 +
3223 + if (!udc_controller)
3224 + return -ENODEV;
3225 +
3226 + if (!driver || driver != udc_controller->driver || !driver->unbind)
3227 + return -EINVAL;
3228 +
3229 +#ifdef CONFIG_USB_OTG
3230 + if (udc_controller->transceiver)
3231 + (void)otg_set_peripheral(udc_controller->transceiver, 0);
3232 +#endif
3233 +
3234 + /* stop DR, disable intr */
3235 + dr_controller_stop(udc_controller);
3236 +
3237 + /* in fact, no needed */
3238 + udc_controller->usb_state = USB_STATE_ATTACHED;
3239 + udc_controller->ep0_state = WAIT_FOR_SETUP;
3240 + udc_controller->ep0_dir = 0;
3241 +
3242 + /* stand operation */
3243 + spin_lock_irqsave(&udc_controller->lock, flags);
3244 + udc_controller->gadget.speed = USB_SPEED_UNKNOWN;
3245 + nuke(&udc_controller->eps[0], -ESHUTDOWN);
3246 + list_for_each_entry(loop_ep, &udc_controller->gadget.ep_list,
3247 + ep.ep_list)
3248 + nuke(loop_ep, -ESHUTDOWN);
3249 + spin_unlock_irqrestore(&udc_controller->lock, flags);
3250 +
3251 + /* unbind gadget and unhook driver. */
3252 + driver->unbind(&udc_controller->gadget);
3253 + udc_controller->gadget.dev.driver = 0;
3254 + udc_controller->driver = 0;
3255 +
3256 + printk(KERN_INFO "unregistered gadget '%s'\n", driver->driver.name);
3257 + return 0;
3258 +}
3259 +EXPORT_SYMBOL(usb_gadget_unregister_driver);
3260 +
3261 +/*-------------------------------------------------------------------------
3262 + PROC File System Support
3263 +-------------------------------------------------------------------------*/
3264 +#ifdef CONFIG_USB_GADGET_DEBUG_FILES
3265 +
3266 +#include <linux/seq_file.h>
3267 +
3268 +static const char proc_filename[] = "driver/fsl_usb2_udc";
3269 +
3270 +static int fsl_proc_read(char *page, char **start, off_t off, int count,
3271 + int *eof, void *_dev)
3272 +{
3273 + char *buf = page;
3274 + char *next = buf;
3275 + unsigned size = count;
3276 + unsigned long flags;
3277 + int t, i;
3278 + u32 tmp_reg;
3279 + struct fsl_ep *ep = NULL;
3280 + struct fsl_req *req;
3281 +
3282 + struct fsl_udc *udc = udc_controller;
3283 + if (off != 0)
3284 + return 0;
3285 +
3286 + spin_lock_irqsave(&udc->lock, flags);
3287 +
3288 + /* ------basic driver infomation ---- */
3289 + t = scnprintf(next, size,
3290 + DRIVER_DESC "\n"
3291 + "%s version: %s\n"
3292 + "Gadget driver: %s\n\n",
3293 + driver_name, DRIVER_VERSION,
3294 + udc->driver ? udc->driver->driver.name : "(none)");
3295 + size -= t;
3296 + next += t;
3297 +
3298 + /* ------ DR Registers ----- */
3299 + tmp_reg = fsl_readl(&dr_regs->usbcmd);
3300 + t = scnprintf(next, size,
3301 + "USBCMD reg: 0x%08x\n"
3302 + "\tSetupTW: %d\n"
3303 + "\tRun/Stop: %s\n\n",
3304 + tmp_reg,
3305 + (tmp_reg & USB_CMD_SUTW) ? 1 : 0,
3306 + (tmp_reg & USB_CMD_RUN_STOP) ? "Run" : "Stop");
3307 + size -= t;
3308 + next += t;
3309 +
3310 + tmp_reg = fsl_readl(&dr_regs->usbsts);
3311 + t = scnprintf(next, size,
3312 + "USB Status Reg: 0x%08x\n"
3313 + "\tDr Suspend: %d Reset Received: %d "
3314 + "System Error: %s USB Error Interrupt: %s\n\n",
3315 + tmp_reg,
3316 + (tmp_reg & USB_STS_SUSPEND) ? 1 : 0,
3317 + (tmp_reg & USB_STS_RESET) ? 1 : 0,
3318 + (tmp_reg & USB_STS_SYS_ERR) ? "Err" : "Normal",
3319 + (tmp_reg & USB_STS_ERR) ? "Err detected" : "No err");
3320 + size -= t;
3321 + next += t;
3322 +
3323 + tmp_reg = fsl_readl(&dr_regs->usbintr);
3324 + t = scnprintf(next, size,
3325 + "USB Interrupt Enable Reg: 0x%08x\n"
3326 + "\tSleep Enable: %d SOF Received Enable: %d "
3327 + "Reset Enable: %d\n"
3328 + "\tSystem Error Enable: %d "
3329 + "Port Change Dectected Enable: %d\n"
3330 + "\tUSB Error Intr Enable: %d USB Intr Enable: %d\n\n",
3331 + tmp_reg,
3332 + (tmp_reg & USB_INTR_DEVICE_SUSPEND) ? 1 : 0,
3333 + (tmp_reg & USB_INTR_SOF_EN) ? 1 : 0,
3334 + (tmp_reg & USB_INTR_RESET_EN) ? 1 : 0,
3335 + (tmp_reg & USB_INTR_SYS_ERR_EN) ? 1 : 0,
3336 + (tmp_reg & USB_INTR_PTC_DETECT_EN) ? 1 : 0,
3337 + (tmp_reg & USB_INTR_ERR_INT_EN) ? 1 : 0,
3338 + (tmp_reg & USB_INTR_INT_EN) ? 1 : 0);
3339 + size -= t;
3340 + next += t;
3341 +
3342 + tmp_reg = fsl_readl(&dr_regs->frindex);
3343 + t = scnprintf(next, size,
3344 + "USB Frame Index Reg: Frame Number is 0x%x\n\n",
3345 + (tmp_reg & USB_FRINDEX_MASKS));
3346 + size -= t;
3347 + next += t;
3348 +
3349 + tmp_reg = fsl_readl(&dr_regs->deviceaddr);
3350 + t = scnprintf(next, size,
3351 + "USB Device Address Reg: Device Addr is 0x%x\n\n",
3352 + (tmp_reg & USB_DEVICE_ADDRESS_MASK));
3353 + size -= t;
3354 + next += t;
3355 +
3356 + tmp_reg = fsl_readl(&dr_regs->endpointlistaddr);
3357 + t = scnprintf(next, size,
3358 + "USB Endpoint List Address Reg:"
3359 + "Device Addr is 0x%x\n\n",
3360 + (tmp_reg & USB_EP_LIST_ADDRESS_MASK));
3361 + size -= t;
3362 + next += t;
3363 +
3364 + tmp_reg = fsl_readl(&dr_regs->portsc1);
3365 + t = scnprintf(next, size,
3366 + "USB Port Status&Control Reg:\n"
3367 + "\tPort Transceiver Type : %s" "Port Speed: %s \n"
3368 + "\tPHY Low Power Suspend: %s" "Port Reset: %s "
3369 + "Port Suspend Mode: %s \n" "\tOver-current Change: %s "
3370 + "Port Enable/Disable Change: %s\n"
3371 + "\tPort Enabled/Disabled: %s"
3372 + "Current Connect Status: %s\n\n", ( {
3373 + char *s;
3374 + switch (tmp_reg & PORTSCX_PTS_FSLS) {
3375 + case PORTSCX_PTS_UTMI:
3376 + s = "UTMI"; break;
3377 + case PORTSCX_PTS_ULPI:
3378 + s = "ULPI "; break;
3379 + case PORTSCX_PTS_FSLS:
3380 + s = "FS/LS Serial"; break;
3381 + default:
3382 + s = "None"; break;
3383 + }
3384 + s; } ), ( {
3385 + char *s;
3386 + switch (tmp_reg & PORTSCX_PORT_SPEED_UNDEF) {
3387 + case PORTSCX_PORT_SPEED_FULL:
3388 + s = "Full Speed"; break;
3389 + case PORTSCX_PORT_SPEED_LOW:
3390 + s = "Low Speed"; break;
3391 + case PORTSCX_PORT_SPEED_HIGH:
3392 + s = "High Speed"; break;
3393 + default:
3394 + s = "Undefined"; break;
3395 + }
3396 + s;
3397 + } ),
3398 + (tmp_reg & PORTSCX_PHY_LOW_POWER_SPD) ?
3399 + "Normal PHY mode" : "Low power mode",
3400 + (tmp_reg & PORTSCX_PORT_RESET) ? "In Reset" :
3401 + "Not in Reset",
3402 + (tmp_reg & PORTSCX_PORT_SUSPEND) ? "In " : "Not in",
3403 + (tmp_reg & PORTSCX_OVER_CURRENT_CHG) ? "Dected" :
3404 + "No",
3405 + (tmp_reg & PORTSCX_PORT_EN_DIS_CHANGE) ? "Disable" :
3406 + "Not change",
3407 + (tmp_reg & PORTSCX_PORT_ENABLE) ? "Enable" :
3408 + "Not correct",
3409 + (tmp_reg & PORTSCX_CURRENT_CONNECT_STATUS) ?
3410 + "Attached" : "Not-Att");
3411 + size -= t;
3412 + next += t;
3413 +
3414 + tmp_reg = fsl_readl(&dr_regs->usbmode);
3415 + t = scnprintf(next, size,
3416 + "USB Mode Reg:" "Controller Mode is : %s\n\n", ( {
3417 + char *s;
3418 + switch (tmp_reg & USB_MODE_CTRL_MODE_HOST) {
3419 + case USB_MODE_CTRL_MODE_IDLE:
3420 + s = "Idle"; break;
3421 + case USB_MODE_CTRL_MODE_DEVICE:
3422 + s = "Device Controller"; break;
3423 + case USB_MODE_CTRL_MODE_HOST:
3424 + s = "Host Controller"; break;
3425 + default:
3426 + s = "None"; break;
3427 + }
3428 + s;
3429 + } ));
3430 + size -= t;
3431 + next += t;
3432 +
3433 + tmp_reg = fsl_readl(&dr_regs->endptsetupstat);
3434 + t = scnprintf(next, size,
3435 + "Endpoint Setup Status Reg:" "SETUP on ep 0x%x\n\n",
3436 + (tmp_reg & EP_SETUP_STATUS_MASK));
3437 + size -= t;
3438 + next += t;
3439 +
3440 + for (i = 0; i < udc->max_ep / 2; i++) {
3441 + tmp_reg = fsl_readl(&dr_regs->endptctrl[i]);
3442 + t = scnprintf(next, size, "EP Ctrl Reg [0x%x]: = [0x%x]\n",
3443 + i, tmp_reg);
3444 + size -= t;
3445 + next += t;
3446 + }
3447 + tmp_reg = fsl_readl(&dr_regs->endpointprime);
3448 + t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n", tmp_reg);
3449 + size -= t;
3450 + next += t;
3451 +
3452 +#ifdef HAVE_SYS_REGS
3453 + tmp_reg = usb_sys_regs->snoop1;
3454 + t = scnprintf(next, size, "\nSnoop1 Reg : = [0x%x]\n\n", tmp_reg);
3455 + size -= t;
3456 + next += t;
3457 +
3458 + tmp_reg = usb_sys_regs->control;
3459 + t = scnprintf(next, size, "General Control Reg : = [0x%x]\n\n",
3460 + tmp_reg);
3461 + size -= t;
3462 + next += t;
3463 +#endif
3464 +
3465 + /* ------fsl_udc, fsl_ep, fsl_request structure information ----- */
3466 + ep = &udc->eps[0];
3467 + t = scnprintf(next, size, "For %s Maxpkt is 0x%x index is 0x%x\n",
3468 + ep->ep.name, ep_maxpacket(ep), ep_index(ep));
3469 + size -= t;
3470 + next += t;
3471 +
3472 + if (list_empty(&ep->queue)) {
3473 + t = scnprintf(next, size, "its req queue is empty\n\n");
3474 + size -= t;
3475 + next += t;
3476 + } else {
3477 + list_for_each_entry(req, &ep->queue, queue) {
3478 + t = scnprintf(next, size,
3479 + "req %p actual 0x%x length 0x%x buf %p\n",
3480 + &req->req, req->req.actual,
3481 + req->req.length, req->req.buf);
3482 + size -= t;
3483 + next += t;
3484 + }
3485 + }
3486 + /* other gadget->eplist ep */
3487 + list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) {
3488 + if (ep->desc) {
3489 + t = scnprintf(next, size,
3490 + "\nFor %s Maxpkt is 0x%x "
3491 + "index is 0x%x\n",
3492 + ep->ep.name, ep_maxpacket(ep),
3493 + ep_index(ep));
3494 + size -= t;
3495 + next += t;
3496 +
3497 + if (list_empty(&ep->queue)) {
3498 + t = scnprintf(next, size,
3499 + "its req queue is empty\n\n");
3500 + size -= t;
3501 + next += t;
3502 + } else {
3503 + list_for_each_entry(req, &ep->queue, queue) {
3504 + t = scnprintf(next, size,
3505 + "req %p actual 0x%x length"
3506 + "0x%x buf %p\n",
3507 + &req->req, req->req.actual,
3508 + req->req.length, req->req.buf);
3509 + size -= t;
3510 + next += t;
3511 + } /* end for each_entry of ep req */
3512 + } /* end for else */
3513 + } /* end for if(ep->queue) */
3514 + } /* end (ep->desc) */
3515 +
3516 + spin_unlock_irqrestore(&udc->lock, flags);
3517 +
3518 + *eof = 1;
3519 + return count - size;
3520 +}
3521 +
3522 +#define create_proc_file() create_proc_read_entry(proc_filename, \
3523 + 0, NULL, fsl_proc_read, NULL)
3524 +
3525 +#define remove_proc_file() remove_proc_entry(proc_filename, NULL)
3526 +
3527 +#else /* !CONFIG_USB_GADGET_DEBUG_FILES */
3528 +
3529 +#define create_proc_file() do {} while (0)
3530 +#define remove_proc_file() do {} while (0)
3531 +
3532 +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
3533 +
3534 +/*-------------------------------------------------------------------------*/
3535 +
3536 +/* Release udc structures */
3537 +static void fsl_udc_release(struct device *dev)
3538 +{
3539 + complete(udc_controller->done);
3540 + dma_free_coherent(dev, udc_controller->ep_qh_size,
3541 + udc_controller->ep_qh, udc_controller->ep_qh_dma);
3542 + kfree(udc_controller);
3543 +}
3544 +
3545 +/******************************************************************
3546 + Internal structure setup functions
3547 +*******************************************************************/
3548 +/*------------------------------------------------------------------
3549 + * init resource for globle controller
3550 + * Return the udc handle on success or NULL on failure
3551 + ------------------------------------------------------------------*/
3552 +static struct fsl_udc *__init struct_udc_setup(struct platform_device *pdev)
3553 +{
3554 + struct fsl_udc *udc;
3555 + struct fsl_usb2_platform_data *pdata;
3556 + size_t size;
3557 +
3558 + udc = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL);
3559 + if (udc == NULL) {
3560 + ERR("malloc udc failed\n");
3561 + return NULL;
3562 + }
3563 +
3564 + pdata = pdev->dev.platform_data;
3565 + udc->phy_mode = pdata->phy_mode; /* DDD FIXME */
3566 +
3567 + /* max_ep_nr is bidirectional ep number, max_ep doubles the number */
3568 + udc->max_ep = pdata->max_ep_nr * 2;
3569 +
3570 + udc->eps = kzalloc(sizeof(struct fsl_ep) * udc->max_ep, GFP_KERNEL);
3571 + if (!udc->eps) {
3572 + ERR("malloc fsl_ep failed\n");
3573 + goto cleanup;
3574 + }
3575 +
3576 + /* initialized QHs, take care of alignment */
3577 + size = udc->max_ep * sizeof(struct ep_queue_head);
3578 + if (size < QH_ALIGNMENT)
3579 + size = QH_ALIGNMENT;
3580 + else if ((size % QH_ALIGNMENT) != 0) {
3581 + size += QH_ALIGNMENT + 1;
3582 + size &= ~(QH_ALIGNMENT - 1);
3583 + }
3584 + udc->ep_qh = dma_alloc_coherent(&pdev->dev, size,
3585 + &udc->ep_qh_dma, GFP_KERNEL);
3586 + if (!udc->ep_qh) {
3587 + ERR("malloc QHs for udc failed\n");
3588 + kfree(udc->eps);
3589 + goto cleanup;
3590 + }
3591 +
3592 + udc->ep_qh_size = size;
3593 +
3594 + /* Initialize ep0 status request structure */
3595 + udc->status_req = container_of(fsl_alloc_request(NULL, GFP_KERNEL),
3596 + struct fsl_req, req);
3597 + /* allocate a small amount of memory to get valid address */
3598 + udc->status_req->req.buf = kmalloc(8, GFP_KERNEL);
3599 + udc->status_req->req.dma = virt_to_phys(udc->status_req->req.buf);
3600 +
3601 + udc->resume_state = USB_STATE_NOTATTACHED;
3602 + udc->usb_state = USB_STATE_POWERED;
3603 + udc->ep0_dir = 0;
3604 + udc->remote_wakeup = 0; /* default to 0 on reset */
3605 + spin_lock_init(&udc->lock);
3606 +
3607 + return udc;
3608 +
3609 +cleanup:
3610 + kfree(udc);
3611 + return NULL;
3612 +}
3613 +
3614 +/*----------------------------------------------------------------
3615 + * Setup the fsl_ep struct for eps
3616 + * Link fsl_ep->ep to gadget->ep_list
3617 + * ep0out is not used so do nothing here
3618 + * ep0in should be taken care
3619 + *--------------------------------------------------------------*/
3620 +static int __init struct_ep_setup(struct fsl_udc *udc, unsigned char index,
3621 + char *name, int link)
3622 +{
3623 + struct fsl_ep *ep = &udc->eps[index];
3624 +
3625 + ep->udc = udc;
3626 + strcpy(ep->name, name);
3627 + ep->ep.name = ep->name;
3628 +
3629 + ep->ep.ops = &fsl_ep_ops;
3630 + ep->stopped = 0;
3631 +
3632 + /* for ep0: maxP defined in desc
3633 + * for other eps, maxP is set by epautoconfig() called by gadget layer
3634 + */
3635 + ep->ep.maxpacket = (unsigned short) ~0;
3636 +
3637 + /* the queue lists any req for this ep */
3638 + INIT_LIST_HEAD(&ep->queue);
3639 +
3640 + /* gagdet.ep_list used for ep_autoconfig so no ep0 */
3641 + if (link)
3642 + list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
3643 + ep->gadget = &udc->gadget;
3644 + ep->qh = &udc->ep_qh[index];
3645 +
3646 + return 0;
3647 +}
3648 +
3649 +static int board_init(struct platform_device *pdev)
3650 +{
3651 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
3652 +
3653 + pr_debug("udc: pdev=0x%p pdata=0x%p\n", pdev, pdata);
3654 +
3655 + /*
3656 + * do platform specific init: check the clock, grab/config pins, etc.
3657 + */
3658 + if (pdata->platform_init && pdata->platform_init(pdev) != 0)
3659 + return -EINVAL;
3660 +
3661 + return 0;
3662 +}
3663 +
3664 +/* Driver probe functions */
3665 +
3666 +static int __init fsl_udc_probe(struct platform_device *pdev)
3667 +{
3668 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
3669 + struct fsl_udc *udc;
3670 + unsigned int i;
3671 + struct otg_transceiver *transceiver = NULL;
3672 + int status = -ENODEV;
3673 + u32 id;
3674 + int irq_number;
3675 + u64 rsrc_start, rsrc_len;
3676 + int ret = -ENODEV;
3677 +
3678 + pr_debug("udc: pdev=0x%p pdata=0x%p\n", pdev, pdata);
3679 +
3680 + if (board_init(pdev) != 0)
3681 + return -EINVAL;
3682 +
3683 + /* Initialize the udc structure including QH member and other member */
3684 + udc = (struct fsl_udc *) struct_udc_setup(pdev);
3685 + udc_controller = udc;
3686 +
3687 + if (!udc) {
3688 + ERR("udc is NULL \n");
3689 + return -ENOMEM;
3690 + }
3691 + dev_set_drvdata(&pdev->dev, udc);
3692 + pr_debug("udc_controller=0x%p", udc_controller);
3693 +
3694 + udc->pdata = pdata;
3695 + udc->xcvr_type = pdata->xcvr_type;
3696 +
3697 +#ifdef CONFIG_USB_OTG
3698 + udc->transceiver = otg_get_transceiver();
3699 + pr_debug("udc: otg_get_transceiver returns 0x%p", udc->transceiver);
3700 +#endif
3701 +
3702 + if (pdev->resource[1].flags != IORESOURCE_IRQ)
3703 + return -ENODEV;
3704 +
3705 + rsrc_start = pdev->resource[0].start;
3706 + rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
3707 +
3708 + pr_debug(" start=0x%ux end=0x%ux\n",
3709 + pdev->resource[0].start, pdev->resource[0].end);
3710 + pr_debug("rsrc_start=0x%llx rsrc_len=0x%llx\n", rsrc_start, rsrc_len);
3711 +
3712 + dr_regs = (struct fsl_usb_device_regs *)pdata->regs;
3713 +
3714 + pr_debug("udc: pdate=0x%p dr_regs=0x%p\n", pdata, dr_regs);
3715 + pr_debug("udc: hci_version=0x%x\n", dr_regs->hciversion);
3716 + pr_debug("udc: otgsc at 0x%p\n", &dr_regs->otgsc);
3717 +
3718 + id = fsl_readl(&dr_regs->id);
3719 + printk(KERN_INFO "FSL2 USBOTG h/w ID=0x%x revision=0x%x\n",
3720 + id & 0x3f, id >> 16);
3721 +
3722 + /* USB OTG module IRQ */
3723 + irq_number = platform_get_irq(pdev, 0);
3724 + if (irq_number > 128) {
3725 + status = request_irq(irq_number, fsl_udc_irq, IRQF_SHARED,
3726 + driver_name, udc);
3727 + if (status) {
3728 + ERR("can't get irq %d, err=%d\n", irq_number, status);
3729 + goto err2;
3730 + }
3731 + } else {
3732 + status = -ENODEV;
3733 + goto err2;
3734 + }
3735 +
3736 + if (!udc->transceiver) {
3737 + /* initialize usb hw reg except for regs for EP,
3738 + * leave usbintr reg untouched*/
3739 + dr_controller_setup(udc);
3740 + }
3741 +
3742 + /* here comes the stand operations for probe
3743 + * set the fsl_udc->gadget.xxx
3744 + */
3745 + udc->gadget.ops = &fsl_gadget_ops;
3746 +
3747 + /* gadget.ep0 is a pointer */
3748 + udc->gadget.ep0 = &udc->eps[0].ep;
3749 + INIT_LIST_HEAD(&udc->gadget.ep_list);
3750 + udc->gadget.speed = USB_SPEED_UNKNOWN;
3751 + udc->gadget.name = driver_name;
3752 +
3753 + /* Setup gadget.dev and register with kernel */
3754 + strcpy(udc->gadget.dev.bus_id, "gadget");
3755 + udc->gadget.dev.release = fsl_udc_release;
3756 + udc->gadget.dev.parent = &pdev->dev;
3757 +
3758 + ret = device_register(&udc->gadget.dev);
3759 + if (ret < 0)
3760 + goto err3;
3761 +
3762 + if (udc->transceiver)
3763 + udc->gadget.is_otg = 1;
3764 +
3765 + /* setup QH and epctrl for ep0 */
3766 + ep0_setup(udc);
3767 +
3768 + /* setup udc->eps[] for ep0 */
3769 + struct_ep_setup(udc_controller, 0, "ep0", 0);
3770 + /* for ep0: the desc defined here;
3771 + * for other eps, gadget layer called ep_enable with defined desc
3772 + */
3773 + udc->eps[0].desc = &fsl_ep0_desc;
3774 + udc->eps[0].ep.maxpacket = USB_MAX_CTRL_PAYLOAD;
3775 +
3776 + /* setup the udc->eps[] for non-control endpoints and link
3777 + * to gadget.ep_list */
3778 + for (i = 1; i < (int)(udc->max_ep / 2); i++) {
3779 + char name[14];
3780 +
3781 + sprintf(name, "ep%dout", i);
3782 + struct_ep_setup(udc, i * 2, name, 1);
3783 + sprintf(name, "ep%din", i);
3784 + struct_ep_setup(udc, i * 2 + 1, name, 1);
3785 + }
3786 +
3787 + /* use dma_pool for TD management */
3788 + udc_controller->td_pool = dma_pool_create("udc_td", &pdev->dev,
3789 + sizeof(struct ep_td_struct),
3790 + DTD_ALIGNMENT, UDC_DMA_BOUNDARY);
3791 + if (udc->td_pool == NULL) {
3792 + ret = -ENOMEM;
3793 + goto err4;
3794 + }
3795 +#if 0 // DDD why this? hoarks OTG host
3796 + pullup_disable(udc);
3797 +#endif
3798 +
3799 + create_proc_file();
3800 + return 0;
3801 +
3802 +err4:
3803 + device_unregister(&udc_controller->gadget.dev);
3804 +err3:
3805 + free_irq(udc_controller->irq, udc_controller);
3806 +err2:
3807 + kfree(udc);
3808 + if (transceiver)
3809 + put_device(transceiver->dev);
3810 + release_mem_region(pdev->resource[0].start,
3811 + pdev->resource[0].end - pdev->resource[0].start + 1);
3812 + return status;
3813 +
3814 +}
3815 +
3816 +/* Driver removal functions
3817 + * Free resources
3818 + * Finish pending transaction
3819 + */
3820 +static int __exit fsl_udc_remove(struct platform_device *pdev)
3821 +{
3822 + struct device *dev = &pdev->dev;
3823 + struct fsl_udc *udc = (struct fsl_udc *)dev_get_drvdata(dev);
3824 + struct fsl_usb2_platform_data *pdata;
3825 + int irq_number;
3826 +
3827 + DECLARE_COMPLETION(done);
3828 +
3829 + pdata = pdev->dev.platform_data;
3830 +
3831 + if (!udc)
3832 + return -ENODEV;
3833 +
3834 + udc->done = &done;
3835 +
3836 + /* DR has been stopped in usb_gadget_unregister_driver() */
3837 +
3838 + if (udc->transceiver) {
3839 + put_device(udc->transceiver->dev);
3840 + udc->transceiver = NULL;
3841 + }
3842 +
3843 + /* remove proc */
3844 + remove_proc_file();
3845 +
3846 + /* free irq */
3847 + irq_number = udc->irq;
3848 + free_irq(pdev->resource[1].start, udc);
3849 + udc->irq = 0;
3850 +
3851 + /* Free allocated memory */
3852 + kfree(udc->status_req->req.buf);
3853 + kfree(udc->status_req);
3854 + kfree(udc_controller->eps);
3855 +
3856 + dma_pool_destroy(udc_controller->td_pool);
3857 + /* deinitlaize all ep: strcut */
3858 + /* deinitialize ep0: reg and QH */
3859 +
3860 + device_unregister(&udc->gadget.dev);
3861 + /* free udc --wait for the release() finished */
3862 + wait_for_completion(&done);
3863 +
3864 + /*
3865 + * do platform specific un-initialization:
3866 + * release iomux pins, etc.
3867 + */
3868 + if (pdata->platform_uninit)
3869 + pdata->platform_uninit(pdev);
3870 +
3871 + return 0;
3872 +}
3873 +
3874 +static int udc_suspend(struct fsl_udc *udc)
3875 +{
3876 + udc->stopped = 1;
3877 + return 0;
3878 +}
3879 +
3880 +/*
3881 + * Modify Power management attributes
3882 + * Used by OTG statemachine to disable gadget temporarily
3883 + * Here we stop the DR controller and disable the irq
3884 + * @param dev device controller pointer
3885 + * @param state current state
3886 + * @return The function returns 0 on success or -1 if failed
3887 + */
3888 +static int fsl_udc_suspend(struct device *dev, pm_message_t state)
3889 +{
3890 + struct fsl_udc *udc = (struct fsl_udc *)dev_get_drvdata(dev);
3891 + pr_debug("udc: Suspend. state=%d\n", state.event);
3892 + return udc_suspend(udc);
3893 +}
3894 +
3895 +static int udc_resume(struct fsl_udc *udc)
3896 +{
3897 + /*Enable DR irq reg and set controller Run */
3898 + if (udc->stopped) {
3899 + dr_controller_setup(udc);
3900 + dr_controller_run(udc);
3901 + }
3902 + udc->usb_state = USB_STATE_ATTACHED;
3903 + udc->ep0_state = WAIT_FOR_SETUP;
3904 + udc->ep0_dir = 0;
3905 + return 0;
3906 +}
3907 +
3908 +/*
3909 + * Invoked on USB resume. May be called in_interrupt.
3910 + * Here we start the DR controller and enable the irq
3911 + * @param dev device controller pointer
3912 + * @return The function returns 0 on success or -1 if failed
3913 + */
3914 +static int fsl_udc_resume(struct device *dev)
3915 +{
3916 + struct fsl_udc *udc = (struct fsl_udc *)dev_get_drvdata(dev);
3917 + pr_debug("udc: Resume dev=0x%p udc=0x%p\n", dev, udc);
3918 +
3919 + return udc_resume(udc);
3920 +}
3921 +
3922 +/*-------------------------------------------------------------------------
3923 + Register entry point for the peripheral controller driver
3924 +--------------------------------------------------------------------------*/
3925 +static struct platform_driver udc_driver = {
3926 + .probe = fsl_udc_probe,
3927 + .remove = __exit_p(fsl_udc_remove),
3928 + .driver = {
3929 + .name = (char *)driver_name,
3930 + .owner = THIS_MODULE,
3931 + },
3932 +};
3933 +
3934 +static int __init udc_init(void)
3935 +{
3936 + printk(KERN_INFO "%s version %s init \n", driver_desc, DRIVER_VERSION);
3937 + return platform_driver_register(&udc_driver);
3938 +}
3939 +
3940 +module_init(udc_init);
3941 +
3942 +static void __exit udc_exit(void)
3943 +{
3944 + platform_driver_unregister(&udc_driver);
3945 + printk(KERN_INFO "%s unregistered \n", driver_desc);
3946 +}
3947 +
3948 +module_exit(udc_exit);
3949 +
3950 +MODULE_DESCRIPTION(DRIVER_DESC);
3951 +MODULE_AUTHOR(DRIVER_AUTHOR);
3952 +MODULE_LICENSE("GPL");
3953 --- a/drivers/usb/host/Kconfig
3954 +++ b/drivers/usb/host/Kconfig
3955 @@ -32,6 +32,7 @@ config USB_EHCI_HCD
3956 config USB_EHCI_ROOT_HUB_TT
3957 bool "Root Hub Transaction Translators (EXPERIMENTAL)"
3958 depends on USB_EHCI_HCD && EXPERIMENTAL
3959 + default y if M54455
3960 ---help---
3961 Some EHCI chips have vendor-specific extensions to integrate
3962 transaction translators, so that no OHCI or UHCI companion
3963 @@ -60,12 +61,12 @@ config USB_EHCI_TT_NEWSCHED
3964
3965 config USB_EHCI_BIG_ENDIAN_MMIO
3966 bool
3967 - depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX)
3968 + depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX || M54455)
3969 default y
3970
3971 config USB_EHCI_BIG_ENDIAN_DESC
3972 bool
3973 - depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX)
3974 + depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX || M54455)
3975 default y
3976
3977 config USB_EHCI_FSL
3978 @@ -260,3 +261,19 @@ config USB_R8A66597_HCD
3979 To compile this driver as a module, choose M here: the
3980 module will be called r8a66597-hcd.
3981
3982 +choice
3983 + prompt "Select transceiver"
3984 + depends on M54455
3985 + default USB_M5445X_ULPI
3986 +
3987 +config USB_M5445X_ULPI
3988 + bool "External ULPI"
3989 + ---help---
3990 + Enable support for the external HS ULPI transceiver.
3991 +
3992 +config USB_M5445X_FSLS
3993 + bool "On-chip (FL/LS only)"
3994 + ---help---
3995 + Enable support for the on-chip FL/LS transceiver.
3996 +endchoice
3997 +
3998 --- /dev/null
3999 +++ b/drivers/usb/host/ehci-arc.c
4000 @@ -0,0 +1,431 @@
4001 +/*
4002 + * drivers/usb/host/ehci-arc.c
4003 + *
4004 + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
4005 + */
4006 +
4007 +/*
4008 + * The code contained herein is licensed under the GNU General Public
4009 + * License. You may obtain a copy of the GNU General Public License
4010 + * Version 2 or later at the following locations:
4011 + *
4012 + * http://www.opensource.org/licenses/gpl-license.html
4013 + * http://www.gnu.org/copyleft/gpl.html
4014 + */
4015 +
4016 +/* Note: this file is #included by ehci-hcd.c */
4017 +
4018 +#include <linux/platform_device.h>
4019 +#include <linux/usb/fsl_usb2.h>
4020 +#include <linux/fsl_devices.h>
4021 +#include <linux/usb/otg.h>
4022 +
4023 +#include "ehci-fsl.h"
4024 +
4025 +
4026 +/* FIXME: Power Managment is un-ported so temporarily disable it */
4027 +#undef CONFIG_PM
4028 +
4029 +/* PCI-based HCs are common, but plenty of non-PCI HCs are used too */
4030 +
4031 +/* configure so an HC device and id are always provided */
4032 +/* always called with process context; sleeping is OK */
4033 +
4034 +/**
4035 + * usb_hcd_fsl_probe - initialize FSL-based HCDs
4036 + * @drvier: Driver to be used for this HCD
4037 + * @pdev: USB Host Controller being probed
4038 + * Context: !in_interrupt()
4039 + *
4040 + * Allocates basic resources for this USB host controller.
4041 + *
4042 + */
4043 +static int usb_hcd_fsl_probe(const struct hc_driver *driver,
4044 + struct platform_device *pdev)
4045 +{
4046 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
4047 + struct usb_hcd *hcd;
4048 + struct resource *res;
4049 + int irq;
4050 + int retval;
4051 +
4052 + pr_debug("initializing FSL-SOC USB Controller\n");
4053 +
4054 + /* Need platform data for setup */
4055 + if (!pdata) {
4056 + dev_err(&pdev->dev,
4057 + "No platform data for %s.\n", pdev->dev.bus_id);
4058 + return -ENODEV;
4059 + }
4060 +
4061 + retval = fsl_platform_verify(pdev);
4062 + if (retval)
4063 + return retval;
4064 +
4065 + /*
4066 + * do platform specific init: check the clock, grab/config pins, etc.
4067 + */
4068 + if (pdata->platform_init && pdata->platform_init(pdev)) {
4069 + retval = -ENODEV;
4070 + goto err1;
4071 + }
4072 +
4073 + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
4074 + if (!res) {
4075 + dev_err(&pdev->dev,
4076 + "Found HC with no IRQ. Check %s setup!\n",
4077 + pdev->dev.bus_id);
4078 + return -ENODEV;
4079 + }
4080 + irq = res->start;
4081 +
4082 + fsl_platform_set_vbus_power(pdev, 1);
4083 +
4084 + hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
4085 + if (!hcd) {
4086 + retval = -ENOMEM;
4087 + goto err1;
4088 + }
4089 +
4090 + if (pdata->regs) {
4091 + pr_debug("REGS: using pdata->regs (0x%p)\n", pdata->regs);
4092 + hcd->regs = pdata->regs;
4093 + hcd->rsrc_start = pdata->r_start;
4094 + hcd->rsrc_len = pdata->r_len;
4095 + } else {
4096 + pr_debug("REGS: NO pdata->regs\n");
4097 + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
4098 + if (!res) {
4099 + dev_err(&pdev->dev, "Found HC with no register addr. "
4100 + "Check %s setup!\n", pdev->dev.bus_id);
4101 + retval = -ENODEV;
4102 + goto err2;
4103 + }
4104 + hcd->rsrc_start = res->start;
4105 + hcd->rsrc_len = res->end - res->start + 1;
4106 +
4107 + /*
4108 + printk("DDD %s(): rsrc_start=0x%llx rsrc_len=0x%llx "
4109 + "pdata=0x%p\n", __FUNCTION__,
4110 + hcd->rsrc_start, hcd->rsrc_len, pdata);
4111 + */
4112 +
4113 + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
4114 + driver->description)) {
4115 + dev_dbg(&pdev->dev, "request_mem_region failed\n");
4116 + retval = -EBUSY;
4117 + goto err2;
4118 + }
4119 + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
4120 +
4121 + if (hcd->regs == NULL) {
4122 + dev_dbg(&pdev->dev, "error mapping memory\n");
4123 + retval = -EFAULT;
4124 + goto err3;
4125 + }
4126 + }
4127 + hcd->power_budget = pdata->power_budget;
4128 +
4129 + /* DDD
4130 + * the following must be done by this point, otherwise the OTG
4131 + * host port doesn't make it thru initializtion.
4132 + * ehci_halt(), called by ehci_fsl_setup() returns -ETIMEDOUT
4133 + */
4134 + fsl_platform_set_host_mode(hcd);
4135 +
4136 + retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
4137 + if (retval != 0)
4138 + goto err4;
4139 +
4140 +#if defined(CONFIG_USB_OTG)
4141 + if (pdata->does_otg) {
4142 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
4143 +
4144 + ehci->transceiver = otg_get_transceiver();
4145 +
4146 + if (ehci->transceiver) {
4147 + retval = otg_set_host(ehci->transceiver,
4148 + &ehci_to_hcd(ehci)->self);
4149 + if (retval) {
4150 + if (ehci->transceiver)
4151 + put_device(ehci->transceiver->dev);
4152 + goto err3;
4153 + }
4154 + } else {
4155 + printk(KERN_ERR "can't find transceiver\n");
4156 + retval = -ENODEV;
4157 + goto err3;
4158 + }
4159 + }
4160 +#endif
4161 +
4162 + return retval;
4163 +
4164 +err4:
4165 + /* DDD only if we did the iomap() iounmap(hcd->regs); */
4166 +err3:
4167 + /* DDD only if we did a request_
4168 + * release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
4169 + */
4170 +err2:
4171 + usb_put_hcd(hcd);
4172 +err1:
4173 + dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval);
4174 + if (pdata->platform_uninit)
4175 + pdata->platform_uninit(pdev);
4176 + return retval;
4177 +}
4178 +
4179 +/* may be called without controller electrically present */
4180 +/* may be called with controller, bus, and devices active */
4181 +
4182 +/**
4183 + * usb_hcd_fsl_remove - shutdown processing for FSL-based HCDs
4184 + * @dev: USB Host Controller being removed
4185 + * Context: !in_interrupt()
4186 + *
4187 + * Reverses the effect of usb_hcd_fsl_probe().
4188 + *
4189 + */
4190 +static void usb_hcd_fsl_remove(struct usb_hcd *hcd,
4191 + struct platform_device *pdev)
4192 +{
4193 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
4194 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
4195 +
4196 + /* DDD shouldn't we turn off the power here? */
4197 + fsl_platform_set_vbus_power(pdev, 0);
4198 +
4199 + usb_remove_hcd(hcd);
4200 +
4201 + if (ehci->transceiver) {
4202 + (void)otg_set_host(ehci->transceiver, 0);
4203 + put_device(ehci->transceiver->dev);
4204 + }
4205 + usb_put_hcd(hcd);
4206 +
4207 + /*
4208 + * do platform specific un-initialization:
4209 + * release iomux pins, etc.
4210 + */
4211 + if (pdata->platform_uninit)
4212 + pdata->platform_uninit(pdev);
4213 +}
4214 +
4215 +/* called after powerup, by probe or system-pm "wakeup" */
4216 +static int ehci_fsl_reinit(struct ehci_hcd *ehci)
4217 +{
4218 + fsl_platform_usb_setup(ehci_to_hcd(ehci));
4219 + ehci_port_power(ehci, 0);
4220 +
4221 + return 0;
4222 +}
4223 +
4224 +/* called during probe() after chip reset completes */
4225 +static int ehci_fsl_setup(struct usb_hcd *hcd)
4226 +{
4227 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
4228 + int retval;
4229 + struct fsl_usb2_platform_data *pdata;
4230 + pdata = hcd->self.controller-> platform_data;
4231 +
4232 + ehci->big_endian_desc = pdata->big_endian_desc;
4233 + ehci->big_endian_mmio = pdata->big_endian_mmio;
4234 +
4235 + /* EHCI registers start at offset 0x100 */
4236 + ehci->caps = hcd->regs + 0x100;
4237 + ehci->regs = hcd->regs + 0x100 +
4238 + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
4239 +
4240 + pr_debug("%s(): ehci->caps=0x%p ehci->regs=0x%p\n", __FUNCTION__,
4241 + ehci->caps, ehci->regs);
4242 +
4243 + dbg_hcs_params(ehci, "reset");
4244 + dbg_hcc_params(ehci, "reset");
4245 +
4246 + /* cache this readonly data; minimize chip reads */
4247 + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
4248 +
4249 + retval = ehci_halt(ehci);
4250 + if (retval)
4251 + return retval;
4252 +
4253 + /* data structure init */
4254 + retval = ehci_init(hcd);
4255 + if (retval)
4256 + return retval;
4257 +
4258 + ehci->is_tdi_rh_tt = 1;
4259 +
4260 + ehci->sbrn = 0x20;
4261 +
4262 + ehci_reset(ehci);
4263 +
4264 + retval = ehci_fsl_reinit(ehci);
4265 + return retval;
4266 +}
4267 +
4268 +static const struct hc_driver ehci_fsl_hc_driver = {
4269 + .description = hcd_name,
4270 + .product_desc = "Freescale On-Chip EHCI Host Controller",
4271 + .hcd_priv_size = sizeof(struct ehci_hcd),
4272 +
4273 + /*
4274 + * generic hardware linkage
4275 + */
4276 + .irq = ehci_irq,
4277 + .flags = FSL_PLATFORM_HC_FLAGS,
4278 +
4279 + /*
4280 + * basic lifecycle operations
4281 + */
4282 + .reset = ehci_fsl_setup,
4283 + .start = ehci_run,
4284 + .stop = ehci_stop,
4285 + .shutdown = ehci_shutdown,
4286 +
4287 + /*
4288 + * managing i/o requests and associated device resources
4289 + */
4290 + .urb_enqueue = ehci_urb_enqueue,
4291 + .urb_dequeue = ehci_urb_dequeue,
4292 + .endpoint_disable = ehci_endpoint_disable,
4293 +
4294 + /*
4295 + * scheduling support
4296 + */
4297 + .get_frame_number = ehci_get_frame,
4298 +
4299 + /*
4300 + * root hub support
4301 + */
4302 + .hub_status_data = ehci_hub_status_data,
4303 + .hub_control = ehci_hub_control,
4304 + .bus_suspend = ehci_bus_suspend,
4305 + .bus_resume = ehci_bus_resume,
4306 +};
4307 +
4308 +#ifdef CONFIG_USB_OTG
4309 +/*
4310 + * Holding pen for all the EHCI registers except port_status,
4311 + * which is a zero element array and hence takes no space.
4312 + * The port_status register is saved in usb_ehci_portsc.
4313 + */
4314 +volatile static struct ehci_regs usb_ehci_regs;
4315 +static u32 usb_ehci_portsc;
4316 +
4317 +/* suspend/resume, section 4.3 */
4318 +
4319 +/* These routines rely on the bus (pci, platform, etc)
4320 + * to handle powerdown and wakeup, and currently also on
4321 + * transceivers that don't need any software attention to set up
4322 + * the right sort of wakeup.
4323 + *
4324 + * They're also used for turning on/off the port when doing OTG.
4325 + */
4326 +static int ehci_fsl_drv_suspend(struct platform_device *pdev,
4327 + pm_message_t message)
4328 +{
4329 + struct usb_hcd *hcd = platform_get_drvdata(pdev);
4330 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
4331 + u32 tmp;
4332 +
4333 + pr_debug("%s pdev=0x%p ehci=0x%p hcd=0x%p\n",
4334 + __FUNCTION__, pdev, ehci, hcd);
4335 + pr_debug("%s ehci->regs=0x%p hcd->regs=0x%p hcd->state=%d\n",
4336 + __FUNCTION__, ehci->regs, hcd->regs, hcd->state);
4337 +
4338 + hcd->state = HC_STATE_SUSPENDED;
4339 + pdev->dev.power.power_state = PMSG_SUSPEND;
4340 +
4341 + if (hcd->driver->suspend)
4342 + return hcd->driver->suspend(hcd, message);
4343 +
4344 + /* ignore non-host interrupts */
4345 + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
4346 +
4347 + tmp = ehci_readl(ehci, &ehci->regs->command);
4348 + tmp &= ~CMD_RUN;
4349 + ehci_writel(ehci, tmp, &ehci->regs->command);
4350 +
4351 + memcpy((void *)&usb_ehci_regs, ehci->regs, sizeof(struct ehci_regs));
4352 + usb_ehci_portsc = ehci_readl(ehci, &ehci->regs->port_status[0]);
4353 +
4354 + /* clear the W1C bits */
4355 + usb_ehci_portsc &= cpu_to_hc32(ehci, ~PORT_RWC_BITS);
4356 +
4357 + fsl_platform_set_vbus_power(pdev, 0);
4358 + /* clear PP to cut power to the port */
4359 + tmp = ehci_readl(ehci, &ehci->regs->port_status[0]);
4360 + tmp &= ~PORT_POWER;
4361 + ehci_writel(ehci, tmp, &ehci->regs->port_status[0]);
4362 +
4363 + return 0;
4364 +}
4365 +
4366 +static int ehci_fsl_drv_resume(struct platform_device *pdev)
4367 +{
4368 + struct usb_hcd *hcd = platform_get_drvdata(pdev);
4369 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
4370 + u32 tmp;
4371 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
4372 +
4373 + pr_debug("%s pdev=0x%p pdata=0x%p ehci=0x%p hcd=0x%p\n",
4374 + __FUNCTION__, pdev, pdata, ehci, hcd);
4375 +
4376 + pr_debug("%s ehci->regs=0x%p hcd->regs=0x%p",
4377 + __FUNCTION__, ehci->regs, hcd->regs);
4378 +
4379 + memcpy(ehci->regs, (void *)&usb_ehci_regs, sizeof(struct ehci_regs));
4380 + ehci_writel(ehci, usb_ehci_portsc, &ehci->regs->port_status[0]);
4381 +
4382 + tmp = USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0);
4383 + ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE);
4384 +
4385 + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
4386 + hcd->state = HC_STATE_RUNNING;
4387 + pdev->dev.power.power_state = PMSG_ON;
4388 +
4389 + tmp = ehci_readl(ehci, &ehci->regs->command);
4390 + tmp |= CMD_RUN;
4391 + ehci_writel(ehci, tmp, &ehci->regs->command);
4392 +
4393 + fsl_platform_set_vbus_power(pdev, 1);
4394 +
4395 + usb_hcd_resume_root_hub(hcd);
4396 +
4397 + return 0;
4398 +}
4399 +#endif /* CONFIG_USB_OTG */
4400 +
4401 +static int ehci_fsl_drv_probe(struct platform_device *pdev)
4402 +{
4403 + if (usb_disabled())
4404 + return -ENODEV;
4405 +
4406 + return usb_hcd_fsl_probe(&ehci_fsl_hc_driver, pdev);
4407 +}
4408 +
4409 +static int ehci_fsl_drv_remove(struct platform_device *pdev)
4410 +{
4411 + struct usb_hcd *hcd = platform_get_drvdata(pdev);
4412 +
4413 + usb_hcd_fsl_remove(hcd, pdev);
4414 +
4415 + return 0;
4416 +}
4417 +
4418 +MODULE_ALIAS("fsl-ehci");
4419 +
4420 +static struct platform_driver ehci_fsl_driver = {
4421 + .probe = ehci_fsl_drv_probe,
4422 + .remove = ehci_fsl_drv_remove,
4423 + .shutdown = usb_hcd_platform_shutdown,
4424 +#ifdef CONFIG_USB_OTG
4425 + .suspend = ehci_fsl_drv_suspend,
4426 + .resume = ehci_fsl_drv_resume,
4427 +#endif
4428 + .driver = {
4429 + .name = "fsl-ehci",
4430 + },
4431 +};
4432 --- a/drivers/usb/host/ehci-fsl.h
4433 +++ b/drivers/usb/host/ehci-fsl.h
4434 @@ -18,6 +18,8 @@
4435 #ifndef _EHCI_FSL_H
4436 #define _EHCI_FSL_H
4437
4438 +#include <linux/usb/fsl_xcvr.h>
4439 +
4440 /* offsets for the non-ehci registers in the FSL SOC USB controller */
4441 #define FSL_SOC_USB_ULPIVP 0x170
4442 #define FSL_SOC_USB_PORTSC1 0x184
4443 @@ -34,5 +36,29 @@
4444 #define FSL_SOC_USB_PRICTRL 0x40c /* NOTE: big-endian */
4445 #define FSL_SOC_USB_SICTRL 0x410 /* NOTE: big-endian */
4446 #define FSL_SOC_USB_CTRL 0x500 /* NOTE: big-endian */
4447 -#define SNOOP_SIZE_2GB 0x1e
4448 +
4449 +#ifdef CONFIG_MPC834x
4450 +#include <sysdev/fsl_usb.h>
4451 +#endif
4452 +
4453 +#ifdef CONFIG_ARCH_MX3
4454 +#include <asm/arch/mx31_usb.h>
4455 +#endif
4456 +
4457 +#ifdef CONFIG_ARCH_MX27
4458 +#include <asm/arch/mx27_usb.h>
4459 +#endif
4460 +
4461 +#ifdef CONFIG_M54455
4462 +#include <asm-m68k/mcf5445x_usb.h>
4463 +#endif
4464 +
4465 +
4466 +static void fsl_platform_set_vbus_power(struct platform_device *pdev, int on)
4467 +{
4468 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
4469 +
4470 + if (pdata->xcvr_ops && pdata->xcvr_ops->set_vbus_power)
4471 + pdata->xcvr_ops->set_vbus_power(pdata, on);
4472 +}
4473 #endif /* _EHCI_FSL_H */
4474 --- a/drivers/usb/host/ehci-hcd.c
4475 +++ b/drivers/usb/host/ehci-hcd.c
4476 @@ -1043,6 +1043,11 @@ MODULE_LICENSE ("GPL");
4477 #define PLATFORM_DRIVER ixp4xx_ehci_driver
4478 #endif
4479
4480 +#ifdef CONFIG_M54455
4481 +#include "ehci-arc.c"
4482 +#define PLATFORM_DRIVER ehci_fsl_driver
4483 +#endif
4484 +
4485 #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
4486 !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
4487 #error "missing bus glue for ehci-hcd"
4488 --- a/drivers/usb/host/ehci-mem.c
4489 +++ b/drivers/usb/host/ehci-mem.c
4490 @@ -40,7 +40,8 @@ static inline void ehci_qtd_init(struct
4491 {
4492 memset (qtd, 0, sizeof *qtd);
4493 qtd->qtd_dma = dma;
4494 - qtd->hw_token = cpu_to_le32 (QTD_STS_HALT);
4495 + // DDD official code` has: qtd->hw_token = cpu_to_le32 (QTD_STS_HALT);
4496 + qtd->hw_token = cpu_to_hc32 (ehci, QTD_STS_HALT);
4497 qtd->hw_next = EHCI_LIST_END(ehci);
4498 qtd->hw_alt_next = EHCI_LIST_END(ehci);
4499 INIT_LIST_HEAD (&qtd->qtd_list);
4500 @@ -211,9 +212,11 @@ static int ehci_mem_init (struct ehci_hc
4501 }
4502
4503 /* Hardware periodic table */
4504 - ehci->periodic = (__le32 *)
4505 + // DDD official code has: ehci->periodic = (__le32 *)
4506 + ehci->periodic = (__hc32 *)
4507 dma_alloc_coherent (ehci_to_hcd(ehci)->self.controller,
4508 - ehci->periodic_size * sizeof(__le32),
4509 + // DDD official: ehci->periodic_size * sizeof(__le32),
4510 + ehci->periodic_size * sizeof(__hc32),
4511 &ehci->periodic_dma, 0);
4512 if (ehci->periodic == NULL) {
4513 goto fail;
4514 --- a/drivers/usb/host/ehci.h
4515 +++ b/drivers/usb/host/ehci.h
4516 @@ -122,6 +122,12 @@ struct ehci_hcd { /* one per controlle
4517
4518 u8 sbrn; /* packed release number */
4519
4520 + /*
4521 + * OTG controllers and transceivers need software interaction;
4522 + * other external transceivers should be software-transparent
4523 + */
4524 + struct otg_transceiver *transceiver;
4525 +
4526 /* irq statistics */
4527 #ifdef EHCI_STATS
4528 struct ehci_stats stats;
4529 @@ -753,6 +759,22 @@ ehci_port_speed(struct ehci_hcd *ehci, u
4530 #define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr)
4531 #endif
4532
4533 +#if defined(CONFIG_COLDFIRE)
4534 +/*
4535 + * Sorry, include/asm-m68k/io.h is messed up. It will give you a
4536 + * BE readl or a LE readl depending on whether or not CONFIG_PCI is set.
4537 + * how broken is that? Do the right thing here.
4538 + */
4539 +#undef readl
4540 +#undef writel
4541 +
4542 +#define readl(addr) in_le32((__force unsigned *)(addr))
4543 +#define writel(val,addr) out_le32((__force unsigned *)(addr),(val))
4544 +
4545 +#define readl_be(addr) in_be32((__force unsigned *)(addr))
4546 +#define writel_be(val, addr) out_be32((__force unsigned *)(addr), (val))
4547 +#endif
4548 +
4549 static inline unsigned int ehci_readl(const struct ehci_hcd *ehci,
4550 __u32 __iomem * regs)
4551 {
4552 --- /dev/null
4553 +++ b/drivers/usb/otg/Makefile
4554 @@ -0,0 +1,5 @@
4555 +#
4556 +# Makefile for USB OTG controller driver
4557 +#
4558 +fsl_usb2_otg-objs := fsl_otg.o otg_fsm.o
4559 +obj-y += fsl_usb2_otg.o
4560 --- /dev/null
4561 +++ b/drivers/usb/otg/fsl_otg.c
4562 @@ -0,0 +1,1515 @@
4563 +/*
4564 + * Copyright (c) Freescale Semiconductor, Inc. 2006-2007
4565 + *
4566 + * USB OTG ULPI driver
4567 + *
4568 + * Based on code for MPC from:
4569 + * Leo Li<LeoLi@freescale.com>
4570 + * Jerry Huang<Chang-Ming.Huang@freescale.com>
4571 + *
4572 + * and M5329 code from
4573 + * Yaroslav Vinogradov yaroslav.vinogradov@freescale.com
4574 + * Andrey Butok
4575 + *
4576 + * Initialization based on code from Shlomi Gridish.
4577 + *
4578 + * This program is free software; you can redistribute it and/or modify
4579 + * it under the terms of the GNU General Public License as published by
4580 + * the Free Software Foundation; either version 2 of the License, or
4581 + * (at your option) any later version.
4582 + *
4583 + * This program is distributed in the hope that it will be useful, but
4584 + * WITHOUT ANY WARRANTY; without even the implied warranty of
4585 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4586 + * General Public License for more details.
4587 + *
4588 + * You should have received a copy of the GNU General Public License along
4589 + * with this program; if not, write to the Free Software Foundation, Inc.,
4590 + * 675 Mass Ave, Cambridge, MA 02139, USA.
4591 + ***************************************************************************
4592 + * Changes:
4593 + * v0.3 08 August 2007 Duck
4594 + * v0.2 20 October 2006 Andrey Butok
4595 + * Issues fixing and some changes.
4596 + * v0.1 September 2006 Yaroslav Vinogradov
4597 + * Initial version.
4598 + *
4599 + */
4600 +
4601 +#include <linux/module.h>
4602 +#include <linux/moduleparam.h>
4603 +#include <linux/kernel.h>
4604 +#include <linux/delay.h>
4605 +#include <linux/ioport.h>
4606 +#include <linux/sched.h>
4607 +#include <linux/slab.h>
4608 +#include <linux/smp_lock.h>
4609 +#include <linux/proc_fs.h>
4610 +#include <linux/errno.h>
4611 +#include <linux/init.h>
4612 +#include <linux/reboot.h>
4613 +#include <linux/timer.h>
4614 +#include <linux/list.h>
4615 +#include <linux/interrupt.h>
4616 +#include <linux/usb.h>
4617 +#include <linux/device.h>
4618 +#include <linux/platform_device.h>
4619 +#include <linux/usb/ch9.h>
4620 +#include <linux/usb_gadget.h>
4621 +#include <linux/workqueue.h>
4622 +#include <linux/time.h>
4623 +#include <linux/fsl_devices.h>
4624 +#include <linux/usb/fsl_usb2.h>
4625 +
4626 +#include <linux/io.h>
4627 +
4628 +#if defined CONFIG_M54455
4629 +#include <asm/mcfsim.h>
4630 +#endif
4631 +
4632 +#define USE_WORK_QUEUES
4633 +#include "fsl_otg.h"
4634 +
4635 +#define CONFIG_USB_OTG_DEBUG_FILES
4636 +#define DRIVER_VERSION "Revision: 1.56"
4637 +#define DRIVER_AUTHOR "Freescale Semiconductor Inc."
4638 +#define DRIVER_DESC "Freescale USB OTG ULPI Driver"
4639 +#define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
4640 +
4641 +MODULE_DESCRIPTION("Freescale USB OTG Controller Driver");
4642 +
4643 +static const char driver_name[] = "fsl-usb2-otg";
4644 +
4645 +static spinlock_t usb_dr_regs_lock;
4646 +
4647 +/*#define HA_DATA_PULSE 1*/
4648 +
4649 +volatile static struct fsl_usb_device_regs *usb_dr_regs;
4650 +static struct fsl_otg *fsl_otg_dev;
4651 +static int srp_wait_done;
4652 +
4653 +/* Driver specific timers */
4654 +struct fsl_otg_timer *b_data_pulse_tmr, *b_vbus_pulse_tmr, *b_srp_fail_tmr,
4655 + *b_srp_wait_tmr, *a_wait_enum_tmr;
4656 +
4657 +static struct list_head active_timers;
4658 +
4659 +static struct fsl_otg_config fsl_otg_initdata = {
4660 + .otg_port = 1,
4661 +};
4662 +
4663 +static void dump_state(const char *string, struct otg_fsm *fsm)
4664 +{
4665 + printk(KERN_DEBUG "%s\n\tOTG state: %s\n", string,
4666 + state_string(fsl_otg_dev->otg.state));
4667 + printk(KERN_DEBUG "\tFSM protocol=%s\n", fsm->protocol ?
4668 + (fsm->protocol == PROTO_HOST ? "Host" : "Gadget")
4669 + : "None");
4670 +
4671 + /* regs */
4672 + printk(KERN_DEBUG "\t OTGSC 0x%08x\n",
4673 + fsl_readl(&usb_dr_regs->otgsc));
4674 + printk(KERN_DEBUG "\tPORTSC1 0x%08x\n",
4675 + fsl_readl(&usb_dr_regs->portsc1));
4676 + printk(KERN_DEBUG "\tUSBMODE 0x%08x\n",
4677 + fsl_readl(&usb_dr_regs->usbmode));
4678 + printk(KERN_DEBUG "\t USBCMD 0x%08x\n",
4679 + fsl_readl(&usb_dr_regs->usbcmd));
4680 + printk(KERN_DEBUG "\t USBSTS 0x%08x\n",
4681 + fsl_readl(&usb_dr_regs->usbsts));
4682 +
4683 + /* ------ State Machine Variables ----- */
4684 + printk(KERN_DEBUG "\ta_bus_req: %d\n", fsm->a_bus_req);
4685 + printk(KERN_DEBUG "\tb_bus_req: %d\n", fsm->b_bus_req);
4686 + printk(KERN_DEBUG "\ta_bus_resume: %d\n", fsm->a_bus_resume);
4687 + printk(KERN_DEBUG "\ta_bus_suspend: %d\n", fsm->a_bus_suspend);
4688 + printk(KERN_DEBUG "\ta_conn: %d\n", fsm->a_conn);
4689 + printk(KERN_DEBUG "\ta_sess_vld: %d\n", fsm->a_sess_vld);
4690 + printk(KERN_DEBUG "\ta_srp_det: %d\n", fsm->a_srp_det);
4691 + printk(KERN_DEBUG "\ta_vbus_vld: %d\n", fsm->a_vbus_vld);
4692 + printk(KERN_DEBUG "\tb_bus_resume: %d\n", fsm->b_bus_resume);
4693 + printk(KERN_DEBUG "\tb_bus_suspend: %d\n", fsm->b_bus_suspend);
4694 + printk(KERN_DEBUG "\tb_conn: %d\n", fsm->b_conn);
4695 + printk(KERN_DEBUG "\tb_se0_srp: %d\n", fsm->b_se0_srp);
4696 + printk(KERN_DEBUG "\tb_sess_end: %d\n", fsm->b_sess_end);
4697 + printk(KERN_DEBUG "\tb_sess_vld: %d\n", fsm->b_sess_vld);
4698 + printk(KERN_DEBUG "\tid: %d\n", fsm->id);
4699 +}
4700 +
4701 +
4702 +/* Routines to access transceiver ULPI registers */
4703 +u8 view_ulpi(u8 addr)
4704 +{
4705 + u32 temp;
4706 +
4707 + temp = 0x40000000 | (addr << 16);
4708 + fsl_writel(temp, &usb_dr_regs->ulpiview);
4709 +
4710 + udelay(1000);
4711 +
4712 + /* DDD timeout this loop: */
4713 + do {
4714 + temp = fsl_readl(&usb_dr_regs->ulpiview);
4715 + } while (temp & 0x40000000);
4716 +
4717 + return (temp & 0x0000ff00) >> 8;
4718 +}
4719 +
4720 +int write_ulpi(u8 addr, u8 data)
4721 +{
4722 + u32 temp;
4723 +
4724 + temp = 0x60000000 | (addr << 16) | data;
4725 + fsl_writel(temp, &usb_dr_regs->ulpiview);
4726 + return 0;
4727 +}
4728 +
4729 +/* prototype declaration */
4730 +void fsl_otg_add_timer(void *timer);
4731 +void fsl_otg_del_timer(void *timer);
4732 +
4733 +/* -------------------------------------------------------------*/
4734 +/* Operations that will be called from OTG Finite State Machine */
4735 +
4736 +/* Charge vbus for vbus pulsing in SRP */
4737 +void fsl_otg_chrg_vbus(int on)
4738 +{
4739 + u32 tmp;
4740 +
4741 + VDBG(" %d\n", on);
4742 +
4743 + tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
4744 +
4745 + if (on) {
4746 + tmp &= ~OTGSC_CTRL_VBUS_DISCHARGE;
4747 + tmp |= OTGSC_CTRL_VBUS_CHARGE;
4748 + } else {
4749 + tmp &= ~OTGSC_CTRL_VBUS_CHARGE;
4750 + }
4751 + fsl_writel(tmp, &usb_dr_regs->otgsc);
4752 +}
4753 +
4754 +/* Discharge vbus through a resistor to ground */
4755 +void fsl_otg_dischrg_vbus(int on)
4756 +{
4757 + u32 tmp;
4758 +
4759 + VDBG(" %d\n", on);
4760 +
4761 + tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
4762 +
4763 + if (on)
4764 + tmp |= OTGSC_CTRL_VBUS_DISCHARGE;
4765 + else
4766 + tmp &= ~OTGSC_CTRL_VBUS_DISCHARGE;
4767 +
4768 + fsl_writel(tmp, &usb_dr_regs->otgsc);
4769 +}
4770 +
4771 +/* A-device driver vbus, controlled through PP bit in PORTSC */
4772 +void fsl_otg_drv_vbus(int on)
4773 +{
4774 + u32 tmp;
4775 +
4776 + VDBG(" %d\n", on);
4777 +
4778 + tmp = fsl_readl(&usb_dr_regs->portsc1) & ~PORTSCX_W1C_BITS;
4779 +
4780 + if (on)
4781 + tmp |= PORTSCX_PORT_POWER;
4782 + else
4783 + tmp &= ~PORTSCX_PORT_POWER;
4784 +
4785 + fsl_writel(tmp, &usb_dr_regs->portsc1);
4786 +}
4787 +
4788 +/* Pull-up D+, signalling connect by periperal. Also used in
4789 + * data-line pulsing in SRP */
4790 +void fsl_otg_loc_conn(int on)
4791 +{
4792 + u32 tmp;
4793 +
4794 + VDBG(" %d\n", on);
4795 +
4796 + tmp = fsl_readl(&usb_dr_regs->otgsc) & ~OTGSC_INTSTS_MASK;
4797 +
4798 + if (on)
4799 + tmp |= OTGSC_CTRL_DATA_PULSING;
4800 + else
4801 + tmp &= ~OTGSC_CTRL_DATA_PULSING;
4802 +
4803 + fsl_writel(tmp, &usb_dr_regs->otgsc);
4804 +}
4805 +
4806 +/* Generate SOF by host. This is controlled through suspend/resume the
4807 + * port. In host mode, controller will automatically send SOF.
4808 + * Suspend will block the data on the port.
4809 + */
4810 +void fsl_otg_loc_sof(int on)
4811 +{
4812 + u32 tmp;
4813 +
4814 + VDBG(" %d\n", on);
4815 +
4816 + tmp = fsl_readl(&usb_dr_regs->portsc1) & ~PORTSCX_W1C_BITS;
4817 +
4818 + if (on)
4819 + tmp |= PORTSCX_PORT_FORCE_RESUME;
4820 + else
4821 + tmp |= PORTSCX_PORT_SUSPEND;
4822 +
4823 + fsl_writel(tmp, &usb_dr_regs->portsc1);
4824 +}
4825 +
4826 +/* Start SRP pulsing by data-line pulsing, followed with v-bus pulsing. */
4827 +void fsl_otg_start_pulse(void)
4828 +{
4829 + u32 __attribute__ ((unused)) tmp;
4830 +
4831 + VDBG("\n");
4832 + srp_wait_done = 0;
4833 +
4834 +#ifdef HA_DATA_PULSE
4835 + tmp = fsl_readl(&usb_dr_regs->otgsc) &= ~OTGSC_INTSTS_MASK;
4836 + tmp |= OTGSC_HA_DATA_PULSE;
4837 + fsl_writel(tmp, &usb_dr_regs->otgsc);
4838 +#else
4839 + fsl_otg_loc_conn(1);
4840 +#endif
4841 +
4842 + fsl_otg_add_timer(b_data_pulse_tmr);
4843 +}
4844 +
4845 +void fsl_otg_pulse_vbus(void);
4846 +
4847 +void b_data_pulse_end(unsigned long foo)
4848 +{
4849 +#ifdef HA_DATA_PULSE
4850 +#else
4851 + fsl_otg_loc_conn(0);
4852 +#endif
4853 +
4854 + /* Do VBUS pulse after data pulse */
4855 + fsl_otg_pulse_vbus();
4856 +}
4857 +
4858 +void fsl_otg_pulse_vbus(void)
4859 +{
4860 + srp_wait_done = 0;
4861 + fsl_otg_chrg_vbus(1);
4862 + /* start the timer to end vbus charge */
4863 + fsl_otg_add_timer(b_vbus_pulse_tmr);
4864 +}
4865 +
4866 +void b_vbus_pulse_end(unsigned long foo)
4867 +{
4868 + fsl_otg_chrg_vbus(0);
4869 +
4870 + /* As USB3300 using the same a_sess_vld and b_sess_vld voltage
4871 + * we need to discharge the bus for a while to distinguish
4872 + * residual voltage of vbus pulsing and A device pull up */
4873 + fsl_otg_dischrg_vbus(1);
4874 + fsl_otg_add_timer(b_srp_wait_tmr);
4875 +}
4876 +
4877 +void b_srp_end(unsigned long foo)
4878 +{
4879 + fsl_otg_dischrg_vbus(0);
4880 + srp_wait_done = 1;
4881 +
4882 + if ((fsl_otg_dev->otg.state == OTG_STATE_B_SRP_INIT) &&
4883 + fsl_otg_dev->fsm.b_sess_vld)
4884 + fsl_otg_dev->fsm.b_srp_done = 1;
4885 +}
4886 +
4887 +/* Workaround for a_host suspending too fast. When a_bus_req=0,
4888 + * a_host will start by SRP. It needs to set b_hnp_enable before
4889 + * actually suspending to start HNP
4890 + */
4891 +void a_wait_enum(unsigned long foo)
4892 +{
4893 + VDBG("a_wait_enum timeout\n");
4894 + if (!fsl_otg_dev->otg.host->b_hnp_enable)
4895 + fsl_otg_add_timer(a_wait_enum_tmr);
4896 + else
4897 + otg_statemachine(&fsl_otg_dev->fsm);
4898 +}
4899 +
4900 +/* ------------------------------------------------------*/
4901 +
4902 +/* The timeout callback function to set time out bit */
4903 +void set_tmout(unsigned long indicator)
4904 +{
4905 + *(int *)indicator = 1;
4906 +}
4907 +
4908 +/* Initialize timers */
4909 +void fsl_otg_init_timers(struct otg_fsm *fsm)
4910 +{
4911 + /* FSM used timers */
4912 + fsm->a_wait_vrise_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_VRISE,
4913 + (unsigned long)&fsm->a_wait_vrise_tmout);
4914 + fsm->a_wait_bcon_tmr = otg_timer_initializer(&set_tmout, TA_WAIT_BCON,
4915 + (unsigned long)&fsm->a_wait_bcon_tmout);
4916 + fsm->a_aidl_bdis_tmr = otg_timer_initializer(&set_tmout, TA_AIDL_BDIS,
4917 + (unsigned long)&fsm->a_aidl_bdis_tmout);
4918 + fsm->b_ase0_brst_tmr = otg_timer_initializer(&set_tmout, TB_ASE0_BRST,
4919 + (unsigned long)&fsm->b_ase0_brst_tmout);
4920 + fsm->b_se0_srp_tmr = otg_timer_initializer(&set_tmout, TB_SE0_SRP,
4921 + (unsigned long)&fsm->b_se0_srp);
4922 + fsm->b_srp_fail_tmr = otg_timer_initializer(&set_tmout, TB_SRP_FAIL,
4923 + (unsigned long)&fsm->b_srp_done);
4924 + fsm->a_wait_enum_tmr = otg_timer_initializer(&a_wait_enum, 10,
4925 + (unsigned long)&fsm);
4926 +
4927 + /* device driver used timers */
4928 + b_srp_wait_tmr = otg_timer_initializer(&b_srp_end, TB_SRP_WAIT, 0);
4929 + b_data_pulse_tmr = otg_timer_initializer(&b_data_pulse_end,
4930 + TB_DATA_PLS, 0);
4931 + b_vbus_pulse_tmr = otg_timer_initializer(&b_vbus_pulse_end,
4932 + TB_VBUS_PLS, 0);
4933 +
4934 +}
4935 +
4936 +/* Add timer to timer list */
4937 +void fsl_otg_add_timer(void *gtimer)
4938 +{
4939 + struct fsl_otg_timer *timer = (struct fsl_otg_timer *)gtimer;
4940 + struct fsl_otg_timer *tmp_timer;
4941 +
4942 + /* Check if the timer is already in the active list,
4943 + * if so update timer count
4944 + */
4945 + list_for_each_entry(tmp_timer, &active_timers, list)
4946 + if (tmp_timer == timer) {
4947 + timer->count = timer->expires;
4948 + return;
4949 + }
4950 + timer->count = timer->expires;
4951 + list_add_tail(&timer->list, &active_timers);
4952 +}
4953 +
4954 +/* Remove timer from the timer list; clear timeout status */
4955 +void fsl_otg_del_timer(void *gtimer)
4956 +{
4957 + struct fsl_otg_timer *timer = (struct fsl_otg_timer *)gtimer;
4958 + struct fsl_otg_timer *tmp_timer, *del_tmp;
4959 +
4960 + list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list)
4961 + if (tmp_timer == timer)
4962 + list_del(&timer->list);
4963 +}
4964 +
4965 +/*
4966 + * Reduce timer count by 1, and find timeout conditions.
4967 + * Called by fsl_otg 1ms timer interrupt
4968 + */
4969 +int fsl_otg_tick_timer(void)
4970 +{
4971 + struct fsl_otg_timer *tmp_timer, *del_tmp;
4972 + int expired = 0;
4973 +
4974 + list_for_each_entry_safe(tmp_timer, del_tmp, &active_timers, list) {
4975 + tmp_timer->count--;
4976 + /* check if timer expires */
4977 + if (!tmp_timer->count) {
4978 + list_del(&tmp_timer->list);
4979 + tmp_timer->function(tmp_timer->data);
4980 + expired = 1;
4981 + }
4982 + }
4983 +
4984 + return expired;
4985 +}
4986 +
4987 +/* Reset controller, not reset the bus */
4988 +void otg_reset_controller(void)
4989 +{
4990 + u32 command;
4991 + unsigned long flags;
4992 + int timeout;
4993 +
4994 + VDBG("\n");
4995 +
4996 + spin_lock_irqsave(&usb_dr_regs_lock, flags);
4997 +
4998 + command = fsl_readl(&usb_dr_regs->usbcmd);
4999 + command |= USB_CMD_CTRL_RESET;
5000 + fsl_writel(command, &usb_dr_regs->usbcmd);
5001 + spin_unlock_irqrestore(&usb_dr_regs_lock, flags);
5002 +
5003 + /* Wait reset completed */
5004 + timeout = 500;
5005 + while (fsl_readl(&usb_dr_regs->usbcmd) & USB_CMD_CTRL_RESET)
5006 + udelay(1);
5007 + if (timeout <= 0)
5008 + ERR("%s - USBCMD_RST never clear. Timeout is %d \n",
5009 + __FUNCTION__, timeout);
5010 +}
5011 +
5012 +/* Call suspend/resume routines in host driver */
5013 +int fsl_otg_start_host(struct otg_fsm *fsm, int on)
5014 +{
5015 + struct otg_transceiver *xceiv = fsm->transceiver;
5016 + struct device *dev;
5017 + struct fsl_otg *otg_dev = container_of(xceiv, struct fsl_otg, otg);
5018 + u32 retval = 0;
5019 +
5020 + if (!xceiv->host)
5021 + return -ENODEV;
5022 +
5023 + dev = xceiv->host->controller;
5024 +
5025 + /*
5026 + * Update a_vbus_vld state as a_vbus_vld int is disabled
5027 + * in device mode
5028 + */
5029 + fsm->a_vbus_vld =
5030 + !!(fsl_readl(&usb_dr_regs->otgsc) & OTGSC_STS_A_VBUS_VALID);
5031 + if (on) {
5032 + /* start fsl usb host controller */
5033 + if (otg_dev->host_working)
5034 + goto end;
5035 + else {
5036 + otg_reset_controller();
5037 + VDBG("host on......\n");
5038 + if (dev->driver->resume) {
5039 + retval = dev->driver->resume(dev);
5040 + if (fsm->id) {
5041 + /* default-b */
5042 + fsl_otg_drv_vbus(1);
5043 + /* Workaround: b_host can't driver
5044 + * vbus, but PP in PORTSC needs to
5045 + * be 1 for host to work.
5046 + * So we set drv_vbus bit in
5047 + * transceiver to 0 thru ULPI. */
5048 + write_ulpi(0x0c, 0x20);
5049 + }
5050 + }
5051 +
5052 + otg_dev->host_working = 1;
5053 + }
5054 + } else {
5055 + /* stop fsl usb host controller */
5056 + if (!otg_dev->host_working)
5057 + goto end;
5058 + else {
5059 + VDBG("host off......\n");
5060 + if (dev && dev->driver) {
5061 + retval = dev->driver->suspend(dev, PMSG_SUSPEND);
5062 + if (fsm->id)
5063 + /* default-b */
5064 + fsl_otg_drv_vbus(0);
5065 + }
5066 + otg_dev->host_working = 0;
5067 + }
5068 + }
5069 +end:
5070 + return retval;
5071 +}
5072 +
5073 +/*
5074 + * Call suspend and resume function in udc driver
5075 + * to stop and start udc driver.
5076 + */
5077 +int fsl_otg_start_gadget(struct otg_fsm *fsm, int on)
5078 +{
5079 + struct otg_transceiver *xceiv = fsm->transceiver;
5080 + struct device *dev;
5081 +
5082 + VDBG("DDD fsm=%p xceiv=%p\n", fsm, xceiv);
5083 + if (!xceiv->gadget || !xceiv->gadget->dev.parent)
5084 + return -ENODEV;
5085 +
5086 + VDBG("DDD xceiv=%p xceiv->gadget=%p parent=%p\n", xceiv, xceiv->gadget,
5087 + xceiv->gadget->dev.parent);
5088 +
5089 + VDBG("gadget %s\n", on ? "on" : "off");
5090 + /* DDD dump_state("starting gadget", fsm); */
5091 +
5092 + dev = xceiv->gadget->dev.parent;
5093 +
5094 + if (on)
5095 + dev->driver->resume(dev);
5096 + else
5097 + dev->driver->suspend(dev, PMSG_SUSPEND);
5098 +
5099 + return 0;
5100 +}
5101 +
5102 +static void fsl_otg_enable(struct otg_transceiver *otg_p)
5103 +{
5104 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5105 + struct otg_fsm *fsm = &(otg_dev)->fsm;
5106 + u32 otg_sc;
5107 +
5108 + /* DDD VDBG(""); */
5109 + /* enable OTG interrupt */
5110 + otg_sc = fsl_readl(&usb_dr_regs->otgsc);
5111 + otg_sc |= OTGSC_INTERRUPT_ENABLE_BITS_MASK;
5112 + otg_sc &= ~OTGSC_IE_1ms_TIMER;
5113 + otg_sc &= ~OTGSC_CTRL_VBUS_DISCHARGE;
5114 + otg_sc |= OTGSC_IE_USB_ID; /* DDD added this */
5115 + fsl_writel(otg_sc, &usb_dr_regs->otgsc);
5116 +
5117 + fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
5118 +
5119 + if (fsm->id) {
5120 + otg_p->state = OTG_STATE_UNDEFINED;
5121 + } else {
5122 + otg_p->state = OTG_STATE_A_IDLE;
5123 + }
5124 +
5125 + otg_p->default_a = (fsm->id == 0);
5126 + otg_p->host->is_b_host = fsm->id;
5127 + otg_p->gadget->is_a_peripheral = !fsm->id;
5128 +
5129 + fsm->a_vbus_vld = 1;
5130 +
5131 + fsm->b_sess_vld = (otg_sc & OTGSC_STS_B_SESSION_VALID) ? 1 : 0;
5132 + fsm->a_sess_vld = (otg_sc & OTGSC_STS_A_SESSION_VALID) ? 1 : 0;
5133 + fsm->b_sess_end = (otg_sc & OTGSC_STS_B_SESSION_END) ? 1 : 0;
5134 +}
5135 +
5136 +/*
5137 + * Called by initialization code of host driver. Register host controller
5138 + * to the OTG. Suspend host for OTG role detection.
5139 + */
5140 +static int fsl_otg_set_host(struct otg_transceiver *otg_p, struct usb_bus *host)
5141 +{
5142 +#if 0 // DDD beta-final
5143 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5144 + struct device *dev = host->controller;
5145 +
5146 + if (!otg_p || otg_dev != fsl_otg_dev)
5147 + return -ENODEV;
5148 +
5149 + otg_p->host = host;
5150 + otg_p->host->is_b_host = otg_dev->fsm.id;
5151 +
5152 + otg_dev->fsm.a_bus_drop = 0;
5153 + otg_dev->fsm.a_bus_req = 1;
5154 +
5155 + otg_p->host->otg_port = fsl_otg_initdata.otg_port;
5156 +
5157 + if (dev && dev->driver) {
5158 + VDBG("suspending host\n");
5159 + dev->driver->suspend(dev, PMSG_SUSPEND);
5160 + otg_dev->host_working = 0;
5161 + VDBG("back\n");
5162 + }
5163 +
5164 +
5165 + /* dump_state("set_host running statemachine", &otg_dev->fsm); DDD */
5166 + otg_statemachine(&otg_dev->fsm);
5167 +
5168 + return 0;
5169 +#else
5170 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5171 +
5172 + if (!otg_p || otg_dev != fsl_otg_dev)
5173 + return -ENODEV;
5174 +
5175 + otg_p->host = host;
5176 +
5177 + otg_dev->fsm.a_bus_drop = 0;
5178 + otg_dev->fsm.a_bus_req = 1;
5179 +
5180 + if (host) {
5181 + VDBG("host off......\n");
5182 +
5183 + otg_p->host->otg_port = fsl_otg_initdata.otg_port;
5184 + otg_p->host->is_b_host = otg_dev->fsm.id;
5185 + /* must leave time for khubd to finish its thing
5186 + * before yanking the host driver out from under it,
5187 + * so suspend the host after a short delay.
5188 + */
5189 + otg_dev->host_working = 1;
5190 + schedule_delayed_work(&otg_dev->otg_event, 100);
5191 + return 0;
5192 + } else { /* host driver going away */
5193 +
5194 + if (!(le32_to_cpu(otg_dev->dr_mem_map->otgsc) &
5195 + OTGSC_STS_USB_ID)) {
5196 + /* Mini-A cable connected */
5197 + struct otg_fsm *fsm = &otg_dev->fsm;
5198 +
5199 + otg_p->state = OTG_STATE_UNDEFINED;
5200 + fsm->protocol = PROTO_UNDEF;
5201 + }
5202 + }
5203 +
5204 + otg_dev->host_working = 0;
5205 +
5206 + otg_statemachine(&otg_dev->fsm);
5207 +
5208 + return 0;
5209 +#endif
5210 +}
5211 +
5212 +/* Called by initialization code of udc. Register udc to OTG.*/
5213 +static int fsl_otg_set_peripheral(struct otg_transceiver *otg_p,
5214 + struct usb_gadget *gadget)
5215 +{
5216 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5217 +
5218 + VDBG("\n");
5219 +
5220 + if (!otg_p || otg_dev != fsl_otg_dev)
5221 + return -ENODEV;
5222 +
5223 + if (!gadget) {
5224 + if (!otg_dev->otg.default_a)
5225 + otg_p->gadget->ops->vbus_draw(otg_p->gadget, 0);
5226 + usb_gadget_vbus_disconnect(otg_dev->otg.gadget);
5227 + otg_dev->otg.gadget = 0;
5228 + otg_dev->fsm.b_bus_req = 0;
5229 + otg_statemachine(&otg_dev->fsm);
5230 + return 0;
5231 + }
5232 +
5233 + otg_p->gadget = gadget;
5234 + otg_p->gadget->is_a_peripheral = !otg_dev->fsm.id;
5235 +
5236 + otg_dev->fsm.b_bus_req = 1;
5237 +
5238 +#if 0 /* DDD uClinux */
5239 + if (otg_p->host) {
5240 + fsl_otg_enable(otg_p);
5241 + otg_statemachine(&otg_dev->fsm);
5242 + }
5243 +#endif
5244 + /* start the gadget right away if the ID pin says Mini-B */
5245 + DBG("ID pin=%d\n", otg_dev->fsm.id);
5246 + if (otg_dev->fsm.id == 1) {
5247 + fsl_otg_start_host(&otg_dev->fsm, 0);
5248 + fsl_otg_drv_vbus(0);
5249 + fsl_otg_start_gadget(&otg_dev->fsm, 1);
5250 + }
5251 +
5252 + return 0;
5253 +}
5254 +
5255 +/* Set OTG port power, only for B-device */
5256 +static int fsl_otg_set_power(struct otg_transceiver *otg_p, unsigned mA)
5257 +{
5258 + if (!fsl_otg_dev)
5259 + return -ENODEV;
5260 + if (otg_p->state == OTG_STATE_B_PERIPHERAL)
5261 + printk(KERN_DEBUG "FSL OTG:Draw %d mA\n", mA);
5262 +
5263 + return 0;
5264 +}
5265 +
5266 +/* Delayed pin detect interrupt processing.
5267 + *
5268 + * When the Mini-A cable is disconnected from the board,
5269 + * the pin-detect interrupt happens before the disconnnect
5270 + * interrupts for the connected device(s). In order to
5271 + * process the disconnect interrupt(s) prior to switching
5272 + * roles, the pin-detect interrupts are delayed, and handled
5273 + * by this routine.
5274 + */
5275 +static void fsl_otg_event(struct work_struct *work)
5276 +{
5277 + struct fsl_otg *og = container_of(work, struct fsl_otg, otg_event.work);
5278 + struct otg_fsm *fsm = &og->fsm;
5279 +
5280 + VDBG("DDD fsm->id=%d\n", fsm->id);
5281 + if (fsm->id) { /* switch to gadget */
5282 + fsl_otg_start_host(fsm, 0);
5283 + fsl_otg_drv_vbus(0);
5284 + fsl_otg_start_gadget(fsm, 1);
5285 + }
5286 +}
5287 +
5288 +/* B-device start SRP */
5289 +static int fsl_otg_start_srp(struct otg_transceiver *otg_p)
5290 +{
5291 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5292 +
5293 + if (!otg_p || otg_dev != fsl_otg_dev
5294 + || otg_p->state != OTG_STATE_B_IDLE)
5295 + return -ENODEV;
5296 +
5297 + otg_dev->fsm.b_bus_req = 1;
5298 + otg_statemachine(&otg_dev->fsm);
5299 +
5300 + return 0;
5301 +}
5302 +
5303 +/* A_host suspend will call this function to start hnp */
5304 +static int fsl_otg_start_hnp(struct otg_transceiver *otg_p)
5305 +{
5306 + struct fsl_otg *otg_dev = container_of(otg_p, struct fsl_otg, otg);
5307 +
5308 + if (!otg_p || otg_dev != fsl_otg_dev)
5309 + return -ENODEV;
5310 +
5311 + VDBG("start_hnp.............\n");
5312 + /* clear a_bus_req to enter a_suspend state */
5313 + otg_dev->fsm.a_bus_req = 0;
5314 + otg_statemachine(&otg_dev->fsm);
5315 +
5316 + return 0;
5317 +}
5318 +
5319 +/*
5320 + * Interrupt handler. OTG/host/peripheral share the same int line.
5321 + * OTG driver clears OTGSC interrupts and leaves USB interrupts
5322 + * intact. It needs to have knowledge of some USB interrupts
5323 + * such as port change.
5324 + */
5325 +irqreturn_t fsl_otg_isr(int irq, void *dev_id)
5326 +{
5327 + struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
5328 + struct otg_transceiver *otg = &((struct fsl_otg *)dev_id)->otg;
5329 + u32 otg_int_src, otg_sc;
5330 +
5331 + otg_sc = fsl_readl(&usb_dr_regs->otgsc);
5332 + otg_int_src = otg_sc & OTGSC_INTSTS_MASK & (otg_sc >> 8);
5333 +
5334 + /* Only clear otg interrupts */
5335 + fsl_writel(otg_sc, &usb_dr_regs->otgsc);
5336 +
5337 + /*FIXME: ID change not generate when init to 0 */
5338 + fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
5339 + otg->default_a = (fsm->id == 0);
5340 +
5341 + /* process OTG interrupts */
5342 + if (otg_int_src) {
5343 + VDBG("\nOTG irq 0x%08x\n", otg_int_src);
5344 +
5345 + if (otg_int_src & OTGSC_INTSTS_USB_ID) {
5346 + fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
5347 + otg->default_a = (fsm->id == 0);
5348 + /* clear conn information */
5349 + if (fsm->id)
5350 + fsm->b_conn = 0;
5351 + else
5352 + fsm->a_conn = 0;
5353 +
5354 + if (otg->host)
5355 + otg->host->is_b_host = fsm->id;
5356 + if (otg->gadget)
5357 + otg->gadget->is_a_peripheral = !fsm->id;
5358 + VDBG("ID int (ID is %d)\n", fsm->id);
5359 +
5360 + if (fsm->id) { /* switch to gadget */
5361 + schedule_delayed_work(&((struct fsl_otg *)
5362 + dev_id)->otg_event, 25);
5363 + } else { /* switch to host */
5364 + cancel_delayed_work(&
5365 + ((struct fsl_otg *)dev_id)->
5366 + otg_event);
5367 + fsl_otg_start_gadget(fsm, 0);
5368 + fsl_otg_drv_vbus(1);
5369 + fsl_otg_start_host(fsm, 1);
5370 + }
5371 +
5372 + return IRQ_HANDLED;
5373 + }
5374 + }
5375 +
5376 + return IRQ_NONE;
5377 +}
5378 +
5379 +
5380 +#if 0 // DDD feta-final
5381 +irqreturn_t foo_fsl_otg_isr(int irq, void *dev_id)
5382 +{
5383 + struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
5384 + struct otg_transceiver *otg = &((struct fsl_otg *)dev_id)->otg;
5385 + u32 otg_int_src, usb_int_src, otg_sc;
5386 + int trigger = 0;
5387 + int tmp;
5388 +
5389 + usb_int_src = fsl_readl(&usb_dr_regs->usbsts);
5390 + otg_sc = fsl_readl(&usb_dr_regs->otgsc);
5391 + otg_int_src = otg_sc & OTGSC_INTSTS_MASK & (otg_sc >> 8);
5392 +
5393 + /* Only clear otg interrupts */
5394 + fsl_writel(otg_sc, &usb_dr_regs->otgsc);
5395 +
5396 + /*FIXME: ID change not generate when init to 0 */
5397 + /* process OTG interrupts */
5398 + if (otg_int_src) {
5399 + VDBG("\nOTG irq 0x%08x\n", otg_int_src);
5400 + if (otg_int_src & OTGSC_INTSTS_1MS_TIMER)
5401 + trigger = fsl_otg_tick_timer();
5402 +
5403 + if (otg_int_src & OTGSC_INTSTS_USB_ID) {
5404 + fsm->id = (otg_sc & OTGSC_STS_USB_ID) ? 1 : 0;
5405 + otg->default_a = (fsm->id == 0);
5406 + if (otg->host)
5407 + otg->host->is_b_host = fsm->id;
5408 + if (otg->gadget)
5409 + otg->gadget->is_a_peripheral = !fsm->id;
5410 + VDBG("IRQ=ID now=%d\n", fsm->id);
5411 +
5412 + if (fsm->id) { /* switch to gadget */
5413 + schedule_delayed_work(&((struct fsl_otg *)
5414 + dev_id)->otg_event, 25);
5415 + } else { /* switch to host */
5416 + cancel_delayed_work(&
5417 + ((struct fsl_otg *)dev_id)->
5418 + otg_event);
5419 + fsl_otg_start_gadget(fsm, 0);
5420 + fsl_otg_drv_vbus(1);
5421 + fsl_otg_start_host(fsm, 1);
5422 + }
5423 +
5424 + return IRQ_HANDLED;
5425 + }
5426 + if (otg_int_src & OTGSC_INTSTS_DATA_PULSE) {
5427 + fsm->a_srp_det = 1;
5428 + trigger = 1;
5429 + VDBG("!!!!Data pulse int\n");
5430 + }
5431 + if (otg_int_src & OTGSC_INTSTS_A_SESSION_VALID) {
5432 + fsm->a_sess_vld =
5433 + (otg_sc & OTGSC_STS_A_SESSION_VALID) ? 1 : 0;
5434 + /* detect VBUS pulsing */
5435 + if ((fsm->transceiver->state == OTG_STATE_A_IDLE)
5436 + && fsm->a_sess_vld)
5437 + fsm->a_srp_det = 1;
5438 + trigger = 1;
5439 + VDBG("!!!a_sess_vld int state=%d\n", fsm->a_sess_vld);
5440 + }
5441 + if (otg_int_src & OTGSC_INTSTS_A_VBUS_VALID) {
5442 + fsm->a_vbus_vld = !!(otg_sc & OTGSC_STS_A_VBUS_VALID);
5443 + trigger = 1;
5444 + VDBG("!!!a_vbus_vld int state=%d\n", fsm->a_vbus_vld);
5445 +
5446 +#if 1
5447 + if ((fsm->a_vbus_vld == 0) && (fsm->id == 0)) {
5448 + if (fsm->transceiver->state != OTG_STATE_A_WAIT_VFALL)
5449 + /* Warning insted of transfer to Error state. */
5450 + printk(KERN_WARNING "ulpi: The USB Device is "
5451 + "sinking too much current!!\n");
5452 + fsm->a_vbus_vld = 1;
5453 + }
5454 +#endif
5455 +
5456 +
5457 + }
5458 + if (otg_int_src & OTGSC_INTSTS_B_SESSION_VALID) {
5459 + fsm->b_sess_vld =
5460 + (otg_sc & OTGSC_STS_B_SESSION_VALID) ? 1 : 0;
5461 + trigger = 1;
5462 + /* SRP done */
5463 + if ((fsl_otg_dev->otg.state == OTG_STATE_B_SRP_INIT) &&
5464 + fsm->b_sess_vld && srp_wait_done)
5465 + fsm->b_srp_done = 1;
5466 + VDBG("!!!!b_sess_vld int state=%d\n", fsm->b_sess_vld);
5467 + }
5468 + if (otg_int_src & OTGSC_INTSTS_B_SESSION_END) {
5469 + fsm->b_sess_end =
5470 + (otg_sc & OTGSC_STS_B_SESSION_END) ? 1 : 0;
5471 + trigger = 1;
5472 + VDBG("!!!!b_sess_end int state=%d\n", fsm->b_sess_end);
5473 + }
5474 + }
5475 +
5476 + /* process USB interrupts */
5477 + if ((usb_int_src & USB_STS_PORT_CHANGE)
5478 + && (fsm->protocol == PROTO_HOST)) {
5479 + VDBG("\nUSB irq A 0x%08x\n", usb_int_src);
5480 + /* Device resume do not generate statemachine change */
5481 + if (fsl_readl(&usb_dr_regs->portsc1) &
5482 + PORTSCX_PORT_FORCE_RESUME) {
5483 + if (otg->default_a) {
5484 + fsm->b_bus_resume = 1;
5485 + trigger = 1;
5486 + } else {
5487 + fsm->a_bus_resume = 1;
5488 + trigger = 1;
5489 + }
5490 + }
5491 +
5492 + tmp = (fsl_readl(&usb_dr_regs->portsc1) &
5493 + PORTSCX_CURRENT_CONNECT_STATUS) ? 1 : 0;
5494 + if (otg->default_a && (fsm->b_conn != tmp)) {
5495 + fsm->b_conn = tmp;
5496 + trigger = 1;
5497 + } else if (!otg->default_a && (fsm->a_conn != tmp)) {
5498 + fsm->a_conn = tmp;
5499 + trigger = 1;
5500 + }
5501 + }
5502 + /* Workaround: sometimes CSC bit will lost. We change to
5503 + * polling CCS bit for connect change */
5504 + if (fsm->protocol == PROTO_GADGET) {
5505 + if (usb_int_src & USB_STS_SUSPEND) {
5506 + VDBG("\nUSB irq B 0x%08x\n", usb_int_src);
5507 + VDBG("peripheral detected suspend\n");
5508 + if (otg->default_a)
5509 + /* A-device detects B suspend */
5510 + fsm->b_bus_suspend = 1;
5511 + else
5512 + /* B-device detects A suspend */
5513 + fsm->a_bus_suspend = 1;
5514 + trigger = 1;
5515 + } else if (usb_int_src & USB_STS_PORT_CHANGE) {
5516 + VDBG("\nUSB irq C 0x%08x\n", usb_int_src);
5517 + VDBG("peripheral resumed\n");
5518 + if (otg->default_a)
5519 + fsm->b_bus_suspend = 0;
5520 + else
5521 + fsm->a_bus_suspend = 0;
5522 + trigger = 1;
5523 + }
5524 + }
5525 +
5526 + /* Invoke statemachine until state is stable */
5527 + while (trigger) {
5528 + trigger = otg_statemachine(fsm);
5529 + }
5530 +
5531 + return IRQ_HANDLED;
5532 +}
5533 +#endif
5534 +
5535 +
5536 +static struct otg_fsm_ops fsl_otg_ops = {
5537 + .chrg_vbus = fsl_otg_chrg_vbus,
5538 + .drv_vbus = fsl_otg_drv_vbus,
5539 + .loc_conn = fsl_otg_loc_conn,
5540 + .loc_sof = fsl_otg_loc_sof,
5541 + .start_pulse = fsl_otg_start_pulse,
5542 +
5543 + .add_timer = fsl_otg_add_timer,
5544 + .del_timer = fsl_otg_del_timer,
5545 +
5546 + .start_host = fsl_otg_start_host,
5547 + .start_gadget = fsl_otg_start_gadget,
5548 +};
5549 +
5550 +/* Initialize the global variable fsl_otg_dev and request IRQ for OTG */
5551 +int fsl_otg_cfg(struct platform_device *pdev)
5552 +{
5553 + int status;
5554 + struct fsl_otg *fsl_otg_tc;
5555 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
5556 + struct resource *res;
5557 +
5558 + DBG("\n");
5559 +
5560 + if (fsl_otg_dev)
5561 + return 0;
5562 +
5563 + /* allocate space to fsl otg device */
5564 + fsl_otg_tc = kzalloc(sizeof(struct fsl_otg), GFP_KERNEL);
5565 + if (!fsl_otg_tc)
5566 + return -ENODEV;
5567 +
5568 +#if 1 // DDD
5569 + if (pdata->regs) {
5570 + fsl_otg_tc->dr_mem_map = pdata->regs;
5571 + } else {
5572 + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
5573 + if (!res) {
5574 + dev_err(&pdev->dev, "no register addr.\n");
5575 + return -ENODEV;
5576 + }
5577 +
5578 + printk("DDD %s(): rsrc_start=0x%x rsrc_len=0x%x\n",
5579 + __FUNCTION__, res->start, res->end - res->start + 1);
5580 +
5581 + if (!request_mem_region(res->start, res->end - res->start + 1,
5582 + "OTG")) {
5583 + dev_dbg(&pdev->dev, "request_mem_region failed\n");
5584 + return -EBUSY;
5585 + }
5586 + fsl_otg_tc->dr_mem_map = ioremap(res->start,
5587 + res->end - res->start + 1);
5588 + }
5589 + DBG("set dr_mem_map to 0x%p\n", fsl_otg_tc->dr_mem_map);
5590 +
5591 +#endif
5592 + INIT_DELAYED_WORK(&fsl_otg_tc->otg_event, fsl_otg_event);
5593 +
5594 + INIT_LIST_HEAD(&active_timers);
5595 + fsl_otg_init_timers(&fsl_otg_tc->fsm);
5596 +
5597 + /* Set OTG state machine operations */
5598 + fsl_otg_tc->fsm.ops = &fsl_otg_ops;
5599 +
5600 +#if 1 /* DDD */
5601 + /* record initial state of ID pin */
5602 + fsl_otg_tc->fsm.id = (fsl_otg_tc->dr_mem_map->otgsc & OTGSC_STS_USB_ID)
5603 + ? 1 : 0;
5604 + DBG("initial ID pin=%d\n", fsl_otg_tc->fsm.id);
5605 +#endif
5606 + /* initialize the otg structure */
5607 + fsl_otg_tc->otg.label = DRIVER_DESC;
5608 + fsl_otg_tc->otg.set_host = fsl_otg_set_host;
5609 + fsl_otg_tc->otg.set_peripheral = fsl_otg_set_peripheral;
5610 + fsl_otg_tc->otg.set_power = fsl_otg_set_power;
5611 + fsl_otg_tc->otg.start_hnp = fsl_otg_start_hnp;
5612 + fsl_otg_tc->otg.start_srp = fsl_otg_start_srp;
5613 +
5614 + fsl_otg_dev = fsl_otg_tc;
5615 +
5616 + /* Store the otg transceiver */
5617 + status = otg_set_transceiver(&fsl_otg_tc->otg);
5618 + if (status) {
5619 + printk(KERN_WARNING ": unable to register OTG transceiver.\n");
5620 + return status;
5621 + }
5622 +
5623 + return 0;
5624 +}
5625 +
5626 +/* OTG Initialization*/
5627 +int usb_otg_start(struct platform_device *pdev)
5628 +{
5629 + struct fsl_otg *p_otg;
5630 + struct otg_transceiver *otg_trans = otg_get_transceiver();
5631 + struct otg_fsm *fsm;
5632 + int status;
5633 + u32 temp;
5634 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
5635 + int timeout;
5636 +
5637 + DBG("\n");
5638 +
5639 + p_otg = container_of(otg_trans, struct fsl_otg, otg);
5640 + fsm = &p_otg->fsm;
5641 +
5642 + /* Initialize the state machine structure with default values */
5643 + SET_OTG_STATE(otg_trans, OTG_STATE_UNDEFINED);
5644 + fsm->transceiver = &p_otg->otg;
5645 +
5646 + usb_dr_regs = p_otg->dr_mem_map;
5647 + DBG("set usb_dr_regs to 0x%p\n", usb_dr_regs);
5648 +
5649 + /* request irq */
5650 + p_otg->irq = platform_get_irq(pdev, 0);
5651 + status = request_irq(p_otg->irq, fsl_otg_isr,
5652 + IRQF_SHARED, driver_name, p_otg);
5653 + if (status) {
5654 + dev_dbg(p_otg->otg.dev, "can't get IRQ %d, error %d\n",
5655 + p_otg->irq, status);
5656 + kfree(p_otg);
5657 + return status;
5658 + }
5659 +
5660 +
5661 + /* stop the controller */
5662 + temp = fsl_readl(&usb_dr_regs->usbcmd) & ~USB_CMD_RUN_STOP;
5663 + fsl_writel(temp, &usb_dr_regs->usbcmd);
5664 +
5665 + /* reset the controller */
5666 + temp = fsl_readl(&usb_dr_regs->usbcmd);
5667 + temp |= USB_CMD_CTRL_RESET;
5668 + fsl_writel(temp, &usb_dr_regs->usbcmd);
5669 +
5670 + /* wait reset completed */
5671 + timeout = 500;
5672 + while (timeout-- &&
5673 + fsl_readl(&usb_dr_regs->usbcmd) & USB_CMD_CTRL_RESET)
5674 + udelay(1);
5675 + if (timeout <= 0)
5676 + ERR("%s - USBCMD_RST never clear. Timeout is %d \n",
5677 + __FUNCTION__, timeout);
5678 +
5679 + /* configure the VBUSHS as IDLE(both host and device) */
5680 +#if 0
5681 + /* DDD really have to check into setting the following */
5682 + fsl_writel(USB_MODE_STREAM_DISABLE, &usb_dr_regs->usbmode);
5683 +#else
5684 + temp = USB_MODE_STREAM_DISABLE | (pdata->es ? USBMODE_ES : 0);
5685 + fsl_writel(temp, &usb_dr_regs->usbmode);
5686 +#endif
5687 +
5688 + /* configure PHY interface */
5689 + temp = fsl_readl(&usb_dr_regs->portsc1);
5690 + temp &= ~(PORTSCX_PHY_TYPE_SEL | PORTSCX_PTW_8BIT);
5691 +
5692 + /* DDD wrong xcvr setting stuff follows */
5693 + temp |= PORTSCX_PTS_ULPI;
5694 + fsl_writel(temp, &usb_dr_regs->portsc1);
5695 +
5696 +
5697 + /* disable all interrupt and clear all OTGSC status */
5698 + temp = fsl_readl(&usb_dr_regs->otgsc);
5699 + temp &= ~OTGSC_INTERRUPT_ENABLE_BITS_MASK;
5700 +#if 0 // DDD
5701 + /* DDD only want ID int
5702 + * temp |= OTGSC_INTERRUPT_STATUS_BITS_MASK | OTGSC_CTRL_VBUS_DISCHARGE;
5703 + */
5704 + temp |= OTGSC_IE_USB_ID; /* DDD added this */
5705 + temp &= ~OTGSC_IE_1ms_TIMER; /* DDD added this */
5706 +#else
5707 + temp |= OTGSC_INTERRUPT_STATUS_BITS_MASK | OTGSC_CTRL_VBUS_DISCHARGE;
5708 +#endif
5709 + fsl_writel(temp, &usb_dr_regs->otgsc);
5710 +
5711 + fsl_otg_drv_vbus(0);
5712 +
5713 +#if 0 // DDD beta-final
5714 + temp = fsl_readl(&usb_dr_regs->otgsc);
5715 + temp |= OTGSC_IE_A_SESSION_VALID;
5716 + fsl_writel(temp, &usb_dr_regs->otgsc);
5717 +#else
5718 + /*
5719 + * The identification (id) input is FALSE when a Mini-A plug is inserted
5720 + * in the devices Mini-AB receptacle. Otherwise, this input is TRUE.
5721 + * Also: record initial state of ID pin
5722 + */
5723 + if (fsl_readl(&usb_dr_regs->otgsc) & OTGSC_STS_USB_ID) {
5724 + p_otg->otg.state = OTG_STATE_UNDEFINED;
5725 + p_otg->fsm.id = 1;
5726 + } else {
5727 + p_otg->otg.state = OTG_STATE_A_IDLE;
5728 + p_otg->fsm.id = 0;
5729 + }
5730 +
5731 + DBG("initial ID pin=%d\n", p_otg->fsm.id);
5732 +
5733 + /* enable OTG ID pin interrupt */
5734 + temp = fsl_readl(&usb_dr_regs->otgsc);
5735 + temp |= OTGSC_IE_USB_ID;
5736 + temp &= ~(OTGSC_CTRL_VBUS_DISCHARGE | OTGSC_IE_1ms_TIMER);
5737 + fsl_writel(temp, &usb_dr_regs->otgsc);
5738 +#endif
5739 +
5740 + return 0;
5741 +}
5742 +
5743 +/* Initialize board specific registers,PIB board,clock and pin multiplexing */
5744 +static int board_init(struct platform_device *pdev)
5745 +{
5746 + struct fsl_usb2_platform_data *pdata;
5747 + pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data;
5748 +
5749 + /*
5750 + * do platform specific init: check the clock, grab/config pins, etc.
5751 + */
5752 + if (pdata->platform_init(pdev) != 0)
5753 + return -EINVAL;
5754 +
5755 + return 0;
5756 +}
5757 +
5758 +/*-------------------------------------------------------------------------
5759 + PROC File System Support
5760 +-------------------------------------------------------------------------*/
5761 +#ifdef CONFIG_USB_OTG_DEBUG_FILES
5762 +
5763 +#include <linux/seq_file.h>
5764 +
5765 +static const char proc_filename[] = "driver/fsl_usb2_otg";
5766 +
5767 +static int otg_proc_read(char *page, char **start, off_t off, int count,
5768 + int *eof, void *_dev)
5769 +{
5770 + struct otg_fsm *fsm = &fsl_otg_dev->fsm;
5771 + char *buf = page;
5772 + char *next = buf;
5773 + unsigned size = count;
5774 + unsigned long flags;
5775 + int t;
5776 + u32 tmp_reg;
5777 +
5778 + if (off != 0)
5779 + return 0;
5780 +
5781 + spin_lock_irqsave(&fsm->lock, flags);
5782 +
5783 + /* ------basic driver infomation ---- */
5784 + t = scnprintf(next, size,
5785 + DRIVER_DESC "\n" "fsl_usb2_otg version: %s\n\n",
5786 + DRIVER_VERSION);
5787 + size -= t;
5788 + next += t;
5789 +
5790 + /* ------ Registers ----- */
5791 + /* tmp_reg = le32_to_cpu(usb_dr_regs->otgsc); */
5792 + tmp_reg = fsl_readl(&usb_dr_regs->otgsc);
5793 + t = scnprintf(next, size, "OTGSC reg: 0x%08x\n", tmp_reg);
5794 + size -= t;
5795 + next += t;
5796 +
5797 + /* tmp_reg = le32_to_cpu(usb_dr_regs->portsc); */
5798 + tmp_reg = fsl_readl(&usb_dr_regs->portsc1);
5799 + t = scnprintf(next, size, "PORTSC reg: 0x%08x\n", tmp_reg);
5800 + size -= t;
5801 + next += t;
5802 +
5803 + /* tmp_reg = le32_to_cpu(usb_dr_regs->usbmode); */
5804 + tmp_reg = fsl_readl(&usb_dr_regs->usbmode);
5805 + t = scnprintf(next, size, "USBMODE reg: 0x%08x\n", tmp_reg);
5806 + size -= t;
5807 + next += t;
5808 +
5809 + /* tmp_reg = le32_to_cpu(usb_dr_regs->usbcmd); */
5810 + tmp_reg = fsl_readl(&usb_dr_regs->usbcmd);
5811 + t = scnprintf(next, size, "USBCMD reg: 0x%08x\n", tmp_reg);
5812 + size -= t;
5813 + next += t;
5814 +
5815 + /* tmp_reg = le32_to_cpu(usb_dr_regs->usbsts); */
5816 + tmp_reg = fsl_readl(&usb_dr_regs->usbsts);
5817 + t = scnprintf(next, size, "USBSTS reg: 0x%08x\n", tmp_reg);
5818 + size -= t;
5819 + next += t;
5820 +
5821 + /* ------ State ----- */
5822 + t = scnprintf(next, size, "FSM protocol=%d %s\n", fsm->protocol,
5823 + fsm->protocol ?
5824 + (fsm->protocol == PROTO_HOST ? "Host" : "Gadget")
5825 + : "None");
5826 + size -= t;
5827 + next += t;
5828 +
5829 + t = scnprintf(next, size,
5830 + "OTG state: %s\n\n",
5831 + state_string(fsl_otg_dev->otg.state));
5832 + size -= t;
5833 + next += t;
5834 +
5835 + /* ------ State Machine Variables ----- */
5836 + t = scnprintf(next, size, "a_bus_req: %d\n", fsm->a_bus_req);
5837 + size -= t;
5838 + next += t;
5839 +
5840 + t = scnprintf(next, size, "b_bus_req: %d\n", fsm->b_bus_req);
5841 + size -= t;
5842 + next += t;
5843 +
5844 + t = scnprintf(next, size, "a_bus_resume: %d\n", fsm->a_bus_resume);
5845 + size -= t;
5846 + next += t;
5847 +
5848 + t = scnprintf(next, size, "a_bus_suspend: %d\n", fsm->a_bus_suspend);
5849 + size -= t;
5850 + next += t;
5851 +
5852 + t = scnprintf(next, size, "a_conn: %d\n", fsm->a_conn);
5853 + size -= t;
5854 + next += t;
5855 +
5856 + t = scnprintf(next, size, "a_sess_vld: %d\n", fsm->a_sess_vld);
5857 + size -= t;
5858 + next += t;
5859 +
5860 + t = scnprintf(next, size, "a_srp_det: %d\n", fsm->a_srp_det);
5861 + size -= t;
5862 + next += t;
5863 +
5864 + t = scnprintf(next, size, "a_vbus_vld: %d\n", fsm->a_vbus_vld);
5865 + size -= t;
5866 + next += t;
5867 +
5868 + t = scnprintf(next, size, "b_bus_resume: %d\n", fsm->b_bus_resume);
5869 + size -= t;
5870 + next += t;
5871 +
5872 + t = scnprintf(next, size, "b_bus_suspend: %d\n", fsm->b_bus_suspend);
5873 + size -= t;
5874 + next += t;
5875 +
5876 + t = scnprintf(next, size, "b_conn: %d\n", fsm->b_conn);
5877 + size -= t;
5878 + next += t;
5879 +
5880 + t = scnprintf(next, size, "b_se0_srp: %d\n", fsm->b_se0_srp);
5881 + size -= t;
5882 + next += t;
5883 +
5884 + t = scnprintf(next, size, "b_sess_end: %d\n", fsm->b_sess_end);
5885 + size -= t;
5886 + next += t;
5887 +
5888 + t = scnprintf(next, size, "b_sess_vld: %d\n", fsm->b_sess_vld);
5889 + size -= t;
5890 + next += t;
5891 +
5892 + t = scnprintf(next, size, "id: %d\n", fsm->id);
5893 + size -= t;
5894 + next += t;
5895 +
5896 + spin_unlock_irqrestore(&fsm->lock, flags);
5897 +
5898 + *eof = 1;
5899 + return count - size;
5900 +}
5901 +
5902 +#define create_proc_file() create_proc_read_entry(proc_filename, \
5903 + 0, NULL, otg_proc_read, NULL)
5904 +
5905 +#define remove_proc_file() remove_proc_entry(proc_filename, NULL)
5906 +
5907 +#else /* !CONFIG_USB_OTG_DEBUG_FILES */
5908 +
5909 +#define create_proc_file() do {} while (0)
5910 +#define remove_proc_file() do {} while (0)
5911 +
5912 +#endif /*CONFIG_USB_OTG_DEBUG_FILES */
5913 +
5914 +/*----------------------------------------------------------*/
5915 +/* Char driver interface to control some OTG input */
5916 +
5917 +/*
5918 + * This function handle some ioctl command,such as get otg
5919 + * status and set host suspend
5920 + */
5921 +static int fsl_otg_ioctl(struct inode *inode, struct file *file,
5922 + unsigned int cmd, unsigned long arg)
5923 +{
5924 + u32 retval = 0;
5925 +
5926 + switch (cmd) {
5927 + case GET_OTG_STATUS:
5928 + retval = fsl_otg_dev->host_working;
5929 + break;
5930 +
5931 + case SET_A_SUSPEND_REQ:
5932 + fsl_otg_dev->fsm.a_suspend_req = arg;
5933 + break;
5934 +
5935 + case SET_A_BUS_DROP:
5936 + fsl_otg_dev->fsm.a_bus_drop = arg;
5937 + break;
5938 +
5939 + case SET_A_BUS_REQ:
5940 + fsl_otg_dev->fsm.a_bus_req = arg;
5941 + break;
5942 +
5943 + case SET_B_BUS_REQ:
5944 + fsl_otg_dev->fsm.b_bus_req = arg;
5945 + break;
5946 +
5947 + default:
5948 + break;
5949 + }
5950 +
5951 + otg_statemachine(&fsl_otg_dev->fsm);
5952 +
5953 + return retval;
5954 +}
5955 +
5956 +static int fsl_otg_open(struct inode *inode, struct file *file)
5957 +{
5958 +
5959 + return 0;
5960 +}
5961 +
5962 +static int fsl_otg_release(struct inode *inode, struct file *file)
5963 +{
5964 +
5965 + return 0;
5966 +}
5967 +
5968 +static struct file_operations otg_fops = {
5969 + .owner = THIS_MODULE,
5970 + .llseek = NULL,
5971 + .read = NULL,
5972 + .write = NULL,
5973 + .ioctl = fsl_otg_ioctl,
5974 + .open = fsl_otg_open,
5975 + .release = fsl_otg_release,
5976 +};
5977 +
5978 +static int __init fsl_otg_probe(struct platform_device *pdev)
5979 +{
5980 + int status;
5981 + struct fsl_usb2_platform_data *pdata;
5982 +
5983 + DBG("pdev=0x%p\n", pdev);
5984 +
5985 + if (!pdev)
5986 + return -ENODEV;
5987 +
5988 + if (!pdev->dev.platform_data)
5989 + return -ENOMEM;
5990 +
5991 + pdata = pdev->dev.platform_data;
5992 +#if 1 // DDD do this elsewhere
5993 + /* Initialize the clock, multiplexing pin and PHY interface */
5994 + board_init(pdev);
5995 +#endif
5996 +
5997 + /* configure the OTG */
5998 + status = fsl_otg_cfg(pdev);
5999 + if (status) {
6000 + printk(KERN_INFO "Couldn't init OTG module\n");
6001 + return -status;
6002 + }
6003 +
6004 + /* start OTG */
6005 + status = usb_otg_start(pdev);
6006 +
6007 + if (register_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME, &otg_fops)) {
6008 + printk(KERN_WARNING FSL_OTG_NAME
6009 + ": unable to register FSL OTG device\n");
6010 + return -EIO;
6011 + }
6012 +
6013 + create_proc_file();
6014 + return status;
6015 +}
6016 +
6017 +static int fsl_otg_remove(struct platform_device *pdev)
6018 +{
6019 + u32 ie;
6020 + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
6021 + unsigned long flags;
6022 +
6023 + DBG("pdev=0x%p pdata=0x%p\n", pdev, pdata);
6024 +
6025 + otg_set_transceiver(NULL);
6026 +
6027 + /* disable and clear OTGSC interrupts */
6028 + spin_lock_irqsave(&usb_dr_regs_lock, flags);
6029 + ie = fsl_readl(&usb_dr_regs->otgsc);
6030 + ie &= ~OTGSC_INTERRUPT_ENABLE_BITS_MASK;
6031 + ie |= OTGSC_INTERRUPT_STATUS_BITS_MASK;
6032 + fsl_writel(ie, &usb_dr_regs->otgsc);
6033 + spin_unlock_irqrestore(&usb_dr_regs_lock, flags);
6034 +
6035 + free_irq(fsl_otg_dev->irq, fsl_otg_dev);
6036 +
6037 + kfree(fsl_otg_dev);
6038 +
6039 + remove_proc_file();
6040 +
6041 + unregister_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME);
6042 +
6043 + if (pdata->platform_uninit)
6044 + pdata->platform_uninit(pdev);
6045 +
6046 + fsl_otg_dev = NULL;
6047 + return 0;
6048 +}
6049 +
6050 +struct platform_driver fsl_otg_driver = {
6051 + .probe = fsl_otg_probe,
6052 + .remove = fsl_otg_remove,
6053 + .driver = {
6054 + .name = driver_name,
6055 + .owner = THIS_MODULE,
6056 + },
6057 +};
6058 +
6059 +/*-------------------------------------------------------------------------*/
6060 +
6061 +static int __init fsl_usb_otg_init(void)
6062 +{
6063 + printk(KERN_INFO DRIVER_DESC " loaded, %s\n", DRIVER_VERSION);
6064 + return platform_driver_register(&fsl_otg_driver);
6065 +}
6066 +
6067 +static void __exit fsl_usb_otg_exit(void)
6068 +{
6069 + platform_driver_unregister(&fsl_otg_driver);
6070 +}
6071 +
6072 +module_init(fsl_usb_otg_init);
6073 +module_exit(fsl_usb_otg_exit);
6074 +
6075 +MODULE_DESCRIPTION(DRIVER_INFO);
6076 +MODULE_AUTHOR(DRIVER_AUTHOR);
6077 +MODULE_LICENSE("GPL");
6078 --- /dev/null
6079 +++ b/drivers/usb/otg/fsl_otg.h
6080 @@ -0,0 +1,139 @@
6081 +/*
6082 + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6083 + */
6084 +
6085 +/*
6086 + * The code contained herein is licensed under the GNU General Public
6087 + * License. You may obtain a copy of the GNU General Public License
6088 + * Version 2 or later at the following locations:
6089 + *
6090 + * http://www.opensource.org/licenses/gpl-license.html
6091 + * http://www.gnu.org/copyleft/gpl.html
6092 + */
6093 +
6094 +#ifndef FSL_OTG_H
6095 +#define FSL_OTG_H
6096 +#include <linux/usb/otg.h>
6097 +#include "otg_fsm.h"
6098 +#include <linux/ioctl.h>
6099 +
6100 +#define ERR(format, arg...) \
6101 +printk(KERN_ERR "%s:%s: " format "\n" , __FILE__, __FUNCTION__ , ## arg)
6102 +
6103 +/*
6104 + * A-DEVICE timing constants
6105 + */
6106 +
6107 +/* Wait for VBUS Rise */
6108 +#define TA_WAIT_VRISE (100) /* a_wait_vrise 100 ms, section: 6.6.5.1 */
6109 +
6110 +/* Wait for B-Connect */
6111 +#define TA_WAIT_BCON (10000) /* a_wait_bcon > 1 sec, section: 6.6.5.2
6112 + * This is only used to get out of
6113 + * OTG_STATE_A_WAIT_BCON state if there was
6114 + * no connection for these many milliseconds
6115 + */
6116 +
6117 +/* A-Idle to B-Disconnect */
6118 +/* It is necessary for this timer to be more than 750 ms because of a bug in OPT
6119 + * test 5.4 in which B OPT disconnects after 750 ms instead of 75ms as stated
6120 + * in the test description
6121 + */
6122 +#define TA_AIDL_BDIS (5000) /* a_suspend minimum 200 ms, section: 6.6.5.3 */
6123 +
6124 +/* B-Idle to A-Disconnect */
6125 +#define TA_BIDL_ADIS (12) /* 3 to 200 ms */
6126 +
6127 +/* B-device timing constants */
6128 +
6129 +/* Data-Line Pulse Time*/
6130 +#define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms, section:5.3.3 */
6131 +#define TB_DATA_PLS_MIN (5) /* minimum 5 ms */
6132 +#define TB_DATA_PLS_MAX (10) /* maximum 10 ms */
6133 +
6134 +/* SRP Initiate Time */
6135 +#define TB_SRP_INIT (100) /* b_srp_init,maximum 100 ms, section:5.3.8 */
6136 +
6137 +/* SRP Fail Time */
6138 +#define TB_SRP_FAIL (7000) /* b_srp_init,Fail time 5~30s, section:6.8.2.2 */
6139 +
6140 +/* SRP result wait time */
6141 +#define TB_SRP_WAIT (60)
6142 +
6143 +/* VBus time */
6144 +#define TB_VBUS_PLS (30) /* time to keep vbus pulsing asserted */
6145 +
6146 +/* Discharge time */
6147 +/* This time should be less than 10ms. It varies from system to system. */
6148 +#define TB_VBUS_DSCHRG (8)
6149 +
6150 +/* A-SE0 to B-Reset */
6151 +#define TB_ASE0_BRST (20) /* b_wait_acon, mini 3.125 ms,section:6.8.2.4 */
6152 +
6153 +/* A bus suspend timer before we can switch to b_wait_aconn */
6154 +#define TB_A_SUSPEND (7)
6155 +#define TB_BUS_RESUME (12)
6156 +
6157 +/* SE0 Time Before SRP */
6158 +#define TB_SE0_SRP (2) /* b_idle,minimum 2 ms, section:5.3.2 */
6159 +
6160 +#define SET_OTG_STATE(otg_ptr, newstate) ((otg_ptr)->state = newstate)
6161 +
6162 +
6163 +struct fsl_otg_timer {
6164 + unsigned long expires; /* Number of count increase to timeout */
6165 + unsigned long count; /* Tick counter */
6166 + void (*function) (unsigned long); /* Timeout function */
6167 + unsigned long data; /* Data passed to function */
6168 + struct list_head list;
6169 +};
6170 +
6171 +struct fsl_otg_timer inline *otg_timer_initializer
6172 + (void (*function) (unsigned long), unsigned long expires,
6173 + unsigned long data) {
6174 + struct fsl_otg_timer *timer;
6175 + timer = kmalloc(sizeof(struct fsl_otg_timer), GFP_KERNEL);
6176 + if (timer == NULL)
6177 + return NULL;
6178 + timer->function = function;
6179 + timer->expires = expires;
6180 + timer->data = data;
6181 + return timer;
6182 +}
6183 +
6184 +struct fsl_otg {
6185 + struct otg_transceiver otg;
6186 + struct otg_fsm fsm;
6187 + struct fsl_usb_device_regs *dr_mem_map;
6188 + struct delayed_work otg_event;
6189 +
6190 + /*used for usb host */
6191 + u8 host_working;
6192 + u8 on_off;
6193 +
6194 + int irq;
6195 +};
6196 +
6197 +struct fsl_otg_config {
6198 + u8 otg_port;
6199 +};
6200 +
6201 +/*For SRP and HNP handle*/
6202 +#define FSL_OTG_MAJOR 66
6203 +#define FSL_OTG_NAME "fsl-otg"
6204 +/*Command to OTG driver(ioctl)*/
6205 +#define OTG_IOCTL_MAGIC FSL_OTG_MAJOR
6206 +/*if otg work as host,it should return 1,otherwise it return 0*/
6207 +#define GET_OTG_STATUS _IOR(OTG_IOCTL_MAGIC, 1, int)
6208 +#define SET_A_SUSPEND_REQ _IOW(OTG_IOCTL_MAGIC, 2, int)
6209 +#define SET_A_BUS_DROP _IOW(OTG_IOCTL_MAGIC, 3, int)
6210 +#define SET_A_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 4, int)
6211 +#define SET_B_BUS_REQ _IOW(OTG_IOCTL_MAGIC, 5, int)
6212 +#define GET_A_SUSPEND_REQ _IOR(OTG_IOCTL_MAGIC, 6, int)
6213 +#define GET_A_BUS_DROP _IOR(OTG_IOCTL_MAGIC, 7, int)
6214 +#define GET_A_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 8, int)
6215 +#define GET_B_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 9, int)
6216 +
6217 +
6218 +/********************************************************************/
6219 +#endif
6220 --- /dev/null
6221 +++ b/drivers/usb/otg/otg_fsm.c
6222 @@ -0,0 +1,381 @@
6223 +/* OTG Finite State Machine from OTG spec
6224 + *
6225 + * Copyright (C) 2007 Freescale Semiconductor, Inc.
6226 + *
6227 + * Author: Li Yang <LeoLi@freescale.com>
6228 + * Jerry Huang <Chang-Ming.Huang@freescale.com>
6229 + *
6230 + * This program is free software; you can redistribute it and/or modify it
6231 + * under the terms of the GNU General Public License as published by the
6232 + * Free Software Foundation; either version 2 of the License, or (at your
6233 + * option) any later version.
6234 + *
6235 + * This program is distributed in the hope that it will be useful, but
6236 + * WITHOUT ANY WARRANTY; without even the implied warranty of
6237 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
6238 + * General Public License for more details.
6239 + *
6240 + * You should have received a copy of the GNU General Public License along
6241 + * with this program; if not, write to the Free Software Foundation, Inc.,
6242 + * 675 Mass Ave, Cambridge, MA 02139, USA.
6243 + */
6244 +
6245 +#include <linux/kernel.h>
6246 +#include <linux/types.h>
6247 +#include <linux/usb/otg.h>
6248 +#include <linux/spinlock.h>
6249 +#include <linux/delay.h>
6250 +#include <linux/usb.h>
6251 +#include <linux/usb_gadget.h>
6252 +
6253 +#include "otg_fsm.h"
6254 +
6255 +
6256 +/* Defined by device specific driver, for different timer implementation */
6257 +extern void *a_wait_vrise_tmr, *a_wait_bcon_tmr, *a_aidl_bdis_tmr,
6258 + *b_ase0_brst_tmr, *b_se0_srp_tmr, *b_srp_fail_tmr, *a_wait_enum_tmr;
6259 +
6260 +const char *state_string(enum usb_otg_state state)
6261 +{
6262 + switch (state) {
6263 + case OTG_STATE_A_IDLE: return "a_idle";
6264 + case OTG_STATE_A_WAIT_VRISE: return "a_wait_vrise";
6265 + case OTG_STATE_A_WAIT_BCON: return "a_wait_bcon";
6266 + case OTG_STATE_A_HOST: return "a_host";
6267 + case OTG_STATE_A_SUSPEND: return "a_suspend";
6268 + case OTG_STATE_A_PERIPHERAL: return "a_peripheral";
6269 + case OTG_STATE_A_WAIT_VFALL: return "a_wait_vfall";
6270 + case OTG_STATE_A_VBUS_ERR: return "a_vbus_err";
6271 + case OTG_STATE_B_IDLE: return "b_idle";
6272 + case OTG_STATE_B_SRP_INIT: return "b_srp_init";
6273 + case OTG_STATE_B_PERIPHERAL: return "b_peripheral";
6274 + case OTG_STATE_B_WAIT_ACON: return "b_wait_acon";
6275 + case OTG_STATE_B_HOST: return "b_host";
6276 + default: return "UNDEFINED";
6277 + }
6278 +}
6279 +EXPORT_SYMBOL(state_string);
6280 +
6281 +/* Change USB protocol when there is a protocol change */
6282 +static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
6283 +{
6284 + int ret = 0;
6285 +
6286 + VDBG("DDD old fsm->protocol= %d; new protocol= %d\n",
6287 + fsm->protocol, protocol);
6288 + if (fsm->protocol != protocol) {
6289 + VDBG("Changing role fsm->protocol= %d; new protocol= %d\n",
6290 + fsm->protocol, protocol);
6291 + /* stop old protocol */
6292 + if (fsm->protocol == PROTO_HOST)
6293 + ret = fsm->ops->start_host(fsm, 0);
6294 + else if (fsm->protocol == PROTO_GADGET)
6295 + ret = fsm->ops->start_gadget(fsm, 0);
6296 + if (ret)
6297 + return ret;
6298 +
6299 + /* start new protocol */
6300 + if (protocol == PROTO_HOST)
6301 + ret = fsm->ops->start_host(fsm, 1);
6302 + else if (protocol == PROTO_GADGET)
6303 + ret = fsm->ops->start_gadget(fsm, 1);
6304 + if (ret)
6305 + return ret;
6306 +
6307 + fsm->protocol = protocol;
6308 + return 0;
6309 + }
6310 +
6311 + return 0;
6312 +}
6313 +
6314 +static int state_changed;
6315 +
6316 +/* Called when leaving a state. Do state clean up jobs here */
6317 +static void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
6318 +{
6319 + switch (old_state) {
6320 + case OTG_STATE_B_IDLE:
6321 + otg_del_timer(fsm, fsm->b_se0_srp_tmr);
6322 + fsm->b_se0_srp = 0;
6323 + break;
6324 + case OTG_STATE_B_SRP_INIT:
6325 + fsm->b_srp_done = 0;
6326 + break;
6327 + case OTG_STATE_B_PERIPHERAL:
6328 + break;
6329 + case OTG_STATE_B_WAIT_ACON:
6330 + otg_del_timer(fsm, fsm->b_ase0_brst_tmr);
6331 + fsm->b_ase0_brst_tmout = 0;
6332 + break;
6333 + case OTG_STATE_B_HOST:
6334 + break;
6335 + case OTG_STATE_A_IDLE:
6336 + break;
6337 + case OTG_STATE_A_WAIT_VRISE:
6338 + otg_del_timer(fsm, fsm->a_wait_vrise_tmr);
6339 + fsm->a_wait_vrise_tmout = 0;
6340 + break;
6341 + case OTG_STATE_A_WAIT_BCON:
6342 + otg_del_timer(fsm, fsm->a_wait_bcon_tmr);
6343 + fsm->a_wait_bcon_tmout = 0;
6344 + break;
6345 + case OTG_STATE_A_HOST:
6346 + otg_del_timer(fsm, fsm->a_wait_enum_tmr);
6347 + break;
6348 + case OTG_STATE_A_SUSPEND:
6349 + otg_del_timer(fsm, fsm->a_aidl_bdis_tmr);
6350 + fsm->a_aidl_bdis_tmout = 0;
6351 + fsm->a_suspend_req = 0;
6352 + fsm->a_bus_req = 1; /* FIXME */
6353 + break;
6354 + case OTG_STATE_A_PERIPHERAL:
6355 + break;
6356 + case OTG_STATE_A_WAIT_VFALL:
6357 + otg_del_timer(fsm, fsm->a_wait_vrise_tmr);
6358 + break;
6359 + case OTG_STATE_A_VBUS_ERR:
6360 + break;
6361 + default:
6362 + break;
6363 + }
6364 +}
6365 +
6366 +/* Called when entering a state */
6367 +static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
6368 +{
6369 + state_changed = 1;
6370 + VDBG("State: old=%s new=%s \n",
6371 + state_string(fsm->transceiver->state), state_string(new_state));
6372 +
6373 + if (fsm->transceiver->state == new_state)
6374 + return 0;
6375 +
6376 + otg_leave_state(fsm, fsm->transceiver->state);
6377 + switch (new_state) {
6378 + case OTG_STATE_B_IDLE:
6379 + otg_drv_vbus(fsm, 0);
6380 + otg_chrg_vbus(fsm, 0);
6381 + otg_loc_conn(fsm, 0);
6382 + otg_loc_sof(fsm, 0);
6383 + otg_set_protocol(fsm, PROTO_UNDEF);
6384 + otg_add_timer(fsm, fsm->b_se0_srp_tmr);
6385 + break;
6386 + case OTG_STATE_B_SRP_INIT:
6387 + otg_start_pulse(fsm);
6388 + otg_loc_sof(fsm, 0);
6389 + otg_set_protocol(fsm, PROTO_UNDEF);
6390 + otg_add_timer(fsm, fsm->b_srp_fail_tmr);
6391 + break;
6392 + case OTG_STATE_B_PERIPHERAL:
6393 + otg_chrg_vbus(fsm, 0);
6394 + otg_loc_conn(fsm, 1);
6395 + otg_loc_sof(fsm, 0);
6396 + otg_set_protocol(fsm, PROTO_GADGET);
6397 + break;
6398 + case OTG_STATE_B_WAIT_ACON:
6399 + otg_chrg_vbus(fsm, 0);
6400 + otg_loc_conn(fsm, 0);
6401 + otg_loc_sof(fsm, 0);
6402 + otg_set_protocol(fsm, PROTO_HOST);
6403 + otg_add_timer(fsm, fsm->b_ase0_brst_tmr);
6404 + fsm->a_bus_suspend = 0;
6405 + break;
6406 + case OTG_STATE_B_HOST:
6407 + otg_chrg_vbus(fsm, 0);
6408 + otg_loc_conn(fsm, 0);
6409 + otg_loc_sof(fsm, 1);
6410 + otg_set_protocol(fsm, PROTO_HOST);
6411 + usb_bus_start_enum(fsm->transceiver->host,
6412 + fsm->transceiver->host->otg_port);
6413 + break;
6414 + case OTG_STATE_A_IDLE:
6415 + otg_drv_vbus(fsm, 0);
6416 + otg_chrg_vbus(fsm, 0);
6417 + otg_loc_conn(fsm, 0);
6418 + otg_loc_sof(fsm, 0);
6419 + otg_set_protocol(fsm, PROTO_HOST);
6420 + break;
6421 + case OTG_STATE_A_WAIT_VRISE:
6422 + otg_drv_vbus(fsm, 1);
6423 + otg_loc_conn(fsm, 0);
6424 + otg_loc_sof(fsm, 0);
6425 + otg_set_protocol(fsm, PROTO_HOST);
6426 + otg_add_timer(fsm, fsm->a_wait_vrise_tmr);
6427 + break;
6428 + case OTG_STATE_A_WAIT_BCON:
6429 + otg_drv_vbus(fsm, 1);
6430 + otg_loc_conn(fsm, 0);
6431 + otg_loc_sof(fsm, 0);
6432 + otg_set_protocol(fsm, PROTO_HOST);
6433 + otg_add_timer(fsm, fsm->a_wait_bcon_tmr);
6434 + break;
6435 + case OTG_STATE_A_HOST:
6436 + otg_drv_vbus(fsm, 1);
6437 + otg_loc_conn(fsm, 0);
6438 + otg_loc_sof(fsm, 1);
6439 + otg_set_protocol(fsm, PROTO_HOST);
6440 + /*
6441 + * When HNP is triggered while a_bus_req = 0, a_host will
6442 + * suspend too fast to complete a_set_b_hnp_en
6443 + */
6444 + if (!fsm->a_bus_req || fsm->a_suspend_req)
6445 + otg_add_timer(fsm, fsm->a_wait_enum_tmr);
6446 + break;
6447 + case OTG_STATE_A_SUSPEND:
6448 + otg_drv_vbus(fsm, 1);
6449 + otg_loc_conn(fsm, 0);
6450 + otg_loc_sof(fsm, 0);
6451 + otg_set_protocol(fsm, PROTO_HOST);
6452 + otg_add_timer(fsm, fsm->a_aidl_bdis_tmr);
6453 +
6454 + break;
6455 + case OTG_STATE_A_PERIPHERAL:
6456 + otg_loc_conn(fsm, 1);
6457 + otg_loc_sof(fsm, 0);
6458 + otg_set_protocol(fsm, PROTO_GADGET);
6459 + otg_drv_vbus(fsm, 1);
6460 + break;
6461 + case OTG_STATE_A_WAIT_VFALL:
6462 + otg_drv_vbus(fsm, 0);
6463 + otg_loc_conn(fsm, 0);
6464 + otg_loc_sof(fsm, 0);
6465 + otg_set_protocol(fsm, PROTO_HOST);
6466 + break;
6467 + case OTG_STATE_A_VBUS_ERR:
6468 + otg_drv_vbus(fsm, 0);
6469 + otg_loc_conn(fsm, 0);
6470 + otg_loc_sof(fsm, 0);
6471 + otg_set_protocol(fsm, PROTO_UNDEF);
6472 + break;
6473 + default:
6474 + break;
6475 + }
6476 +
6477 + fsm->transceiver->state = new_state;
6478 + return 0;
6479 +}
6480 +
6481 +/* State change judgement */
6482 +int otg_statemachine(struct otg_fsm *fsm)
6483 +{
6484 + enum usb_otg_state state;
6485 + unsigned long flags;
6486 +
6487 + spin_lock_irqsave(&fsm->lock, flags);
6488 +
6489 + state = fsm->transceiver->state;
6490 + state_changed = 0;
6491 + /* State machine state change judgement */
6492 +
6493 + VDBG(" State: %s \n", state_string(state));
6494 +
6495 + switch (state) {
6496 + case OTG_STATE_UNDEFINED:
6497 + if (fsm->id)
6498 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6499 + else
6500 + otg_set_state(fsm, OTG_STATE_A_IDLE);
6501 + break;
6502 + case OTG_STATE_B_IDLE:
6503 + if (!fsm->id)
6504 + otg_set_state(fsm, OTG_STATE_A_IDLE);
6505 + else if (fsm->b_sess_vld && fsm->transceiver->gadget)
6506 + otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
6507 + else if (fsm->b_bus_req && fsm->b_sess_end && fsm->b_se0_srp)
6508 + otg_set_state(fsm, OTG_STATE_B_SRP_INIT);
6509 + break;
6510 + case OTG_STATE_B_SRP_INIT:
6511 + if (!fsm->id || fsm->b_srp_done)
6512 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6513 + break;
6514 + case OTG_STATE_B_PERIPHERAL:
6515 + if (!fsm->id || !fsm->b_sess_vld)
6516 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6517 + else if (fsm->b_bus_req &&
6518 + fsm->transceiver->
6519 + gadget->b_hnp_enable && fsm->a_bus_suspend)
6520 + otg_set_state(fsm, OTG_STATE_B_WAIT_ACON);
6521 + break;
6522 + case OTG_STATE_B_WAIT_ACON:
6523 + if (fsm->a_conn)
6524 + otg_set_state(fsm, OTG_STATE_B_HOST);
6525 + else if (!fsm->id || !fsm->b_sess_vld)
6526 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6527 + else if (fsm->a_bus_resume || fsm->b_ase0_brst_tmout) {
6528 + fsm->b_ase0_brst_tmout = 0;
6529 + otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
6530 + }
6531 + break;
6532 + case OTG_STATE_B_HOST:
6533 + if (!fsm->id || !fsm->b_sess_vld)
6534 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6535 + else if (!fsm->b_bus_req || !fsm->a_conn)
6536 + otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
6537 + break;
6538 + case OTG_STATE_A_IDLE:
6539 + if (fsm->id)
6540 + otg_set_state(fsm, OTG_STATE_B_IDLE);
6541 + else if (!fsm->a_bus_drop && (fsm->a_bus_req || fsm->a_srp_det))
6542 + otg_set_state(fsm, OTG_STATE_A_WAIT_VRISE);
6543 + break;
6544 + case OTG_STATE_A_WAIT_VRISE:
6545 + if (fsm->id || fsm->a_bus_drop || fsm->a_vbus_vld ||
6546 + fsm->a_wait_vrise_tmout) {
6547 + otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
6548 + }
6549 + break;
6550 + case OTG_STATE_A_WAIT_BCON:
6551 + if (!fsm->a_vbus_vld)
6552 + otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
6553 + else if (fsm->id | fsm->a_bus_drop | fsm->a_wait_bcon_tmout)
6554 + otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
6555 + else if (fsm->b_conn)
6556 + otg_set_state(fsm, OTG_STATE_A_HOST);
6557 + break;
6558 + case OTG_STATE_A_HOST:
6559 + if ((!fsm->a_bus_req || fsm->a_suspend_req) &&
6560 + fsm->transceiver->host->b_hnp_enable)
6561 + otg_set_state(fsm, OTG_STATE_A_SUSPEND);
6562 + else if (fsm->id || !fsm->b_conn || fsm->a_bus_drop)
6563 + otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
6564 + else if (!fsm->a_vbus_vld)
6565 + otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
6566 + break;
6567 + case OTG_STATE_A_SUSPEND:
6568 + if (!fsm->b_conn && fsm->transceiver->host->b_hnp_enable)
6569 + otg_set_state(fsm, OTG_STATE_A_PERIPHERAL);
6570 + else if (!fsm->b_conn && !fsm->transceiver->host->b_hnp_enable)
6571 + otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
6572 + else if (fsm->a_bus_req || fsm->b_bus_resume)
6573 + otg_set_state(fsm, OTG_STATE_A_HOST);
6574 + else if (fsm->id || fsm->a_bus_drop || fsm->a_aidl_bdis_tmout)
6575 + otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
6576 + else if (!fsm->a_vbus_vld)
6577 + otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
6578 + break;
6579 + case OTG_STATE_A_PERIPHERAL:
6580 + if (fsm->id || fsm->a_bus_drop)
6581 + otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
6582 + else if (fsm->b_bus_suspend)
6583 + otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
6584 + else if (!fsm->a_vbus_vld)
6585 + otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
6586 + break;
6587 + case OTG_STATE_A_WAIT_VFALL:
6588 + if (fsm->id || fsm->a_bus_req || (!fsm->a_sess_vld &&
6589 + !fsm->b_conn))
6590 + otg_set_state(fsm, OTG_STATE_A_IDLE);
6591 + break;
6592 + case OTG_STATE_A_VBUS_ERR:
6593 + if (fsm->id || fsm->a_bus_drop || fsm->a_clr_err)
6594 + otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
6595 + break;
6596 + default:
6597 + break;
6598 + }
6599 + spin_unlock_irqrestore(&fsm->lock, flags);
6600 +
6601 + return state_changed;
6602 +}
6603 +EXPORT_SYMBOL(otg_statemachine);
6604 --- /dev/null
6605 +++ b/drivers/usb/otg/otg_fsm.h
6606 @@ -0,0 +1,170 @@
6607 +/* Copyright (C) 2006-2007 Freescale Semiconductor, Inc.
6608 + *
6609 + * This program is free software; you can redistribute it and/or modify it
6610 + * under the terms of the GNU General Public License as published by the
6611 + * Free Software Foundation; either version 2 of the License, or (at your
6612 + * option) any later version.
6613 + *
6614 + * This program is distributed in the hope that it will be useful, but
6615 + * WITHOUT ANY WARRANTY; without even the implied warranty of
6616 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
6617 + * General Public License for more details.
6618 + *
6619 + * You should have received a copy of the GNU General Public License along
6620 + * with this program; if not, write to the Free Software Foundation, Inc.,
6621 + * 675 Mass Ave, Cambridge, MA 02139, USA.
6622 + */
6623 +
6624 +#ifndef OTG_FSM_H
6625 +#define OTG_FSM_H
6626 +
6627 +#if 1
6628 +#define DEBUG 1
6629 +#define VERBOSE 1
6630 +#endif
6631 +
6632 +#ifdef DEBUG
6633 +#define DBG(fmt, args...) printk(KERN_DEBUG "[%s] " fmt , \
6634 + __FUNCTION__, ## args)
6635 +#else
6636 +#define DBG(fmt, args...) do {} while (0)
6637 +#endif
6638 +
6639 +#ifdef VERBOSE
6640 +#define VDBG DBG
6641 +#else
6642 +#define VDBG(stuff...) do {} while (0)
6643 +#endif
6644 +
6645 +#ifdef VERBOSE
6646 +#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__)
6647 +#else
6648 +#define MPC_LOC do {} while (0)
6649 +#endif
6650 +
6651 +#define PROTO_UNDEF 0
6652 +#define PROTO_HOST 1
6653 +#define PROTO_GADGET 2
6654 +
6655 +
6656 +
6657 +
6658 +
6659 +/* OTG state machine according to the OTG spec */
6660 +struct otg_fsm {
6661 + /* Input */
6662 + int a_bus_resume;
6663 + int a_bus_suspend;
6664 + int a_conn;
6665 + int a_sess_vld;
6666 + int a_srp_det;
6667 + int a_vbus_vld;
6668 + int b_bus_resume;
6669 + int b_bus_suspend;
6670 + int b_conn;
6671 + int b_se0_srp;
6672 + int b_sess_end;
6673 + int b_sess_vld;
6674 + int id;
6675 +
6676 + /* Internal variables */
6677 + int a_set_b_hnp_en;
6678 + int b_srp_done;
6679 + int b_hnp_enable;
6680 +
6681 + /* Timeout indicator for timers */
6682 + int a_wait_vrise_tmout;
6683 + int a_wait_bcon_tmout;
6684 + int a_aidl_bdis_tmout;
6685 + int b_ase0_brst_tmout;
6686 +
6687 + /* Informative variables */
6688 + int a_bus_drop;
6689 + int a_bus_req;
6690 + int a_clr_err;
6691 + int a_suspend_req;
6692 + int b_bus_req;
6693 +
6694 + /* Output */
6695 + int drv_vbus;
6696 + int loc_conn;
6697 + int loc_sof;
6698 +
6699 + struct otg_fsm_ops *ops;
6700 + struct otg_transceiver *transceiver;
6701 +
6702 + void *a_wait_vrise_tmr;
6703 + void *a_wait_bcon_tmr;
6704 + void *a_aidl_bdis_tmr;
6705 + void *b_ase0_brst_tmr;
6706 + void *b_se0_srp_tmr;
6707 + void *b_srp_fail_tmr;
6708 + void *a_wait_enum_tmr;
6709 +
6710 + /* Current usb protocol used: 0:undefine; 1:host; 2:client */
6711 + int protocol;
6712 + spinlock_t lock; /* fsm lock */
6713 +};
6714 +
6715 +struct otg_fsm_ops {
6716 + void (*chrg_vbus)(int on);
6717 + void (*drv_vbus)(int on);
6718 + void (*loc_conn)(int on);
6719 + void (*loc_sof)(int on);
6720 + void (*start_pulse)(void);
6721 + void (*add_timer)(void *timer);
6722 + void (*del_timer)(void *timer);
6723 + int (*start_host)(struct otg_fsm *fsm, int on);
6724 + int (*start_gadget)(struct otg_fsm *fsm, int on);
6725 +};
6726 +
6727 +
6728 +static inline void otg_chrg_vbus(struct otg_fsm *fsm, int on)
6729 +{
6730 + fsm->ops->chrg_vbus(on);
6731 +}
6732 +
6733 +static inline void otg_drv_vbus(struct otg_fsm *fsm, int on)
6734 +{
6735 + if (fsm->drv_vbus != on) {
6736 + fsm->drv_vbus = on;
6737 + fsm->ops->drv_vbus(on);
6738 + }
6739 +}
6740 +
6741 +static inline void otg_loc_conn(struct otg_fsm *fsm, int on)
6742 +{
6743 + if (fsm->loc_conn != on) {
6744 + fsm->loc_conn = on;
6745 + fsm->ops->loc_conn(on);
6746 + }
6747 +}
6748 +
6749 +static inline void otg_loc_sof(struct otg_fsm *fsm, int on)
6750 +{
6751 + if (fsm->loc_sof != on) {
6752 + fsm->loc_sof = on;
6753 + fsm->ops->loc_sof(on);
6754 + }
6755 +}
6756 +
6757 +static inline void otg_start_pulse(struct otg_fsm *fsm)
6758 +{
6759 + fsm->ops->start_pulse();
6760 +}
6761 +
6762 +static inline void otg_add_timer(struct otg_fsm *fsm, void *timer)
6763 +{
6764 + fsm->ops->add_timer(timer);
6765 +}
6766 +
6767 +static inline void otg_del_timer(struct otg_fsm *fsm, void *timer)
6768 +{
6769 + fsm->ops->del_timer(timer);
6770 +}
6771 +
6772 +extern int otg_statemachine(struct otg_fsm *fsm);
6773 +
6774 +extern const char *state_string(enum usb_otg_state state);
6775 +
6776 +#endif
6777 --- a/include/asm-m68k/mcf5445x_usb.h
6778 +++ b/include/asm-m68k/mcf5445x_usb.h
6779 @@ -41,7 +41,8 @@ static inline void fsl_platform_set_host
6780
6781 /* set host mode and select "big endian" */
6782 temp = fsl_readl(&regs->usbmode);
6783 - fsl_writel(temp | USBMODE_CM_HOST | USBMODE_ES, &regs->usbmode);
6784 + temp |= USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0);
6785 + fsl_writel(temp, &regs->usbmode);
6786
6787 pr_debug("%s: set usbmode to 0x%x\n\n", __FUNCTION__,
6788 fsl_readl(&regs->usbmode));
6789 --- a/include/linux/fsl_devices.h
6790 +++ b/include/linux/fsl_devices.h
6791 @@ -91,6 +91,19 @@ enum fsl_usb2_operating_modes {
6792 FSL_USB2_DR_OTG,
6793 };
6794
6795 +/* DDD
6796 + * replace _operating_modes with _controller
6797 + *
6798 + * the operating_mode tests in fsl_platform_verify() aren't needed,
6799 + * since the ehci driver isn't going to be probe()d unless it's
6800 + * "fsl-ehci" device anyway, and what we really need to know is
6801 + * which controller (MPH/DR) we're dealing with
6802 + */
6803 +enum fsl_usb2_controller {
6804 + FSL_USB2_MPH,
6805 + FSL_USB2_DR,
6806 +};
6807 +
6808 enum fsl_usb2_phy_modes {
6809 FSL_USB2_PHY_NONE,
6810 FSL_USB2_PHY_ULPI,
6811 @@ -101,9 +114,36 @@ enum fsl_usb2_phy_modes {
6812
6813 struct fsl_usb2_platform_data {
6814 /* board specific information */
6815 - enum fsl_usb2_operating_modes operating_mode;
6816 + /*
6817 + * DDD see note above
6818 + * enum fsl_usb2_operating_modes operating_mode;
6819 + */
6820 + enum fsl_usb2_controller controller;
6821 enum fsl_usb2_phy_modes phy_mode;
6822 unsigned int port_enables;
6823 + /*
6824 + * DDD this could arguably be moved to a separate
6825 + * fsl usb2 device header file
6826 + */
6827 + char *name; /* pretty print */
6828 + int (*platform_init) (struct platform_device *);
6829 + void (*platform_uninit) (struct platform_device *);
6830 + int (*platform_verify) (struct platform_device *);
6831 + u32 xcvr_type; /* PORTSCX_PTS_* */
6832 + u32 view; /* ULPI viewport register */
6833 + u32 r_start; /* start of MEM resource */
6834 + u32 r_len; /* length of MEM resource */
6835 + void __iomem *regs; /* ioremap'd register base */
6836 + unsigned big_endian_mmio : 1;
6837 + unsigned big_endian_desc : 1;
6838 + unsigned es : 1; /* need USBMODE:ES */
6839 + unsigned have_sysif_regs : 1;
6840 + unsigned le_setup_buf : 1;
6841 + unsigned does_otg : 1; /* set IFF it's an OTG port */
6842 +
6843 + unsigned power_budget; /* for hcd->power_budget */
6844 + struct fsl_xcvr_ops *xcvr_ops;
6845 + int max_ep_nr; /* max # of endpoints */
6846 };
6847
6848 /* Flags in fsl_usb2_mph_platform_data */
6849 --- /dev/null
6850 +++ b/include/linux/usb/fsl_usb2.h
6851 @@ -0,0 +1,464 @@
6852 +/*
6853 + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6854 + */
6855 +
6856 +/*
6857 + * The code contained herein is licensed under the GNU General Public
6858 + * License. You may obtain a copy of the GNU General Public License
6859 + * Version 2 or later at the following locations:
6860 + *
6861 + * http://www.opensource.org/licenses/gpl-license.html
6862 + * http://www.gnu.org/copyleft/gpl.html
6863 + */
6864 +
6865 +/*
6866 + * Freescale USB device/endpoint management registers
6867 + */
6868 +#ifndef __FSL_USB2_H
6869 +#define __FSL_USB2_H
6870 +
6871 +
6872 + /* USB DR device mode registers (Little Endian) */
6873 +struct fsl_usb_device_regs {
6874 + /* Capability register */
6875 + u32 id;
6876 + u32 res1[63];
6877 + u16 caplength; /* Capability Register Length */
6878 + u16 hciversion; /* Host Controller Interface Version */
6879 + u32 hcsparams; /* Host Controller Structual Parameters */
6880 + u32 hccparams; /* Host Controller Capability Parameters */
6881 + u32 res2[5];
6882 + u32 dciversion; /* Device Controller Interface Version */
6883 + u32 dccparams; /* Device Controller Capability Parameters */
6884 + u32 res3[6];
6885 + /* Operation register */
6886 + u32 usbcmd; /* USB Command Register */
6887 + u32 usbsts; /* USB Status Register */
6888 + u32 usbintr; /* USB Interrupt Enable Register */
6889 + u32 frindex; /* Frame Index Register */
6890 + u32 res4;
6891 + u32 deviceaddr; /* Device Address */
6892 + u32 endpointlistaddr; /* Endpoint List Address Register */
6893 + u32 res5;
6894 + u32 burstsize; /* Master Interface Data Burst Size Register */
6895 + u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
6896 + u32 res6[2];
6897 + u32 ulpiview;
6898 + u32 res7[3];
6899 + u32 configflag; /* Configure Flag Register */
6900 + u32 portsc1; /* Port 1 Status and Control Register */
6901 + u32 res8[7];
6902 + u32 otgsc; /* On-The-Go Status and Control */
6903 + u32 usbmode; /* USB Mode Register */
6904 + u32 endptsetupstat; /* Endpoint Setup Status Register */
6905 + u32 endpointprime; /* Endpoint Initialization Register */
6906 + u32 endptflush; /* Endpoint Flush Register */
6907 + u32 endptstatus; /* Endpoint Status Register */
6908 + u32 endptcomplete; /* Endpoint Complete Register */
6909 +#if 0
6910 + u32 endptctrl[USB_MAX_ENDPOINTS]; /* Endpoint Control Registers */
6911 +#else
6912 + // DDD see DCCPARAMS:DEN for the real number of device endpoints
6913 + // DDD 16 is the max
6914 + u32 endptctrl[16]; /* Endpoint Control Registers */
6915 +#endif
6916 +};
6917 +
6918 + /* USB DR host mode registers (Little Endian) */
6919 +struct fsl_usb_host_regs {
6920 + /* Capability register */
6921 + u32 id;
6922 + u32 res1[63];
6923 + u16 caplength; /* Capability Register Length */
6924 + u16 hciversion; /* Host Controller Interface Version */
6925 + u32 hcsparams; /* Host Controller Structual Parameters */
6926 + u32 hccparams; /* Host Controller Capability Parameters */
6927 + u32 res2[5];
6928 + u32 dciversion; /* Device Controller Interface Version */
6929 + u32 dccparams; /* Device Controller Capability Parameters */
6930 + u32 res3[6];
6931 + /* Operation register */
6932 + u32 usbcmd; /* USB Command Register */
6933 + u32 usbsts; /* USB Status Register */
6934 + u32 usbintr; /* USB Interrupt Enable Register */
6935 + u32 frindex; /* Frame Index Register */
6936 + u32 res4;
6937 + u32 periodiclistbase; /* Periodic Frame List Base Address Register */
6938 + u32 asynclistaddr; /* Current Asynchronous List Address Register */
6939 + u32 res5;
6940 + u32 burstsize; /* Master Interface Data Burst Size Register */
6941 + u32 txttfilltuning; /* Transmit FIFO Tuning Controls Register */
6942 + u32 res6[2];
6943 + u32 ulpiview;
6944 + u32 res7[3];
6945 + u32 configflag; /* Configure Flag Register */
6946 + u32 portsc1; /* Port 1 Status and Control Register */
6947 + u32 res8[7];
6948 + u32 otgsc; /* On-The-Go Status and Control */
6949 + u32 usbmode; /* USB Mode Register */
6950 + u32 endptsetupstat; /* Endpoint Setup Status Register */
6951 + u32 endpointprime; /* Endpoint Initialization Register */
6952 + u32 endptflush; /* Endpoint Flush Register */
6953 + u32 endptstatus; /* Endpoint Status Register */
6954 + u32 endptcomplete; /* Endpoint Complete Register */
6955 +#if 0
6956 + u32 endptctrl[USB_MAX_ENDPOINTS]; /* Endpoint Control Registers */
6957 +#else
6958 + // DDD: do these exits in the host register set??
6959 + // DDD see DCCPARAMS:DEN for the real number of device endpoints
6960 + // DDD 16 is the max
6961 + u32 endptctrl[16]; /* Endpoint Control Registers */
6962 +#endif
6963 +};
6964 +
6965 + /* non-EHCI USB system interface registers (Big Endian) */
6966 +struct usb_sys_interface {
6967 + u32 snoop1;
6968 + u32 snoop2;
6969 + u32 age_cnt_thresh; /* Age Count Threshold Register */
6970 + u32 pri_ctrl; /* Priority Control Register */
6971 + u32 si_ctrl; /* System Interface Control Register */
6972 + u32 res[59];
6973 + u32 control; /* General Purpose Control Register */
6974 +};
6975 +
6976 +/* ep0 transfer state */
6977 +#define WAIT_FOR_SETUP 0
6978 +#define DATA_STATE_XMIT 1
6979 +#define DATA_STATE_NEED_ZLP 2
6980 +#define WAIT_FOR_OUT_STATUS 3
6981 +#define DATA_STATE_RECV 4
6982 +
6983 +/* Frame Index Register Bit Masks */
6984 +#define USB_FRINDEX_MASKS 0x3fff
6985 +
6986 +
6987 +
6988 +/* USBCMD Register Bit Masks */
6989 +#define USB_CMD_RUN_STOP 0x00000001
6990 +#define USB_CMD_CTRL_RESET 0x00000002
6991 +#define USB_CMD_PERIODIC_SCHEDULE_EN 0x00000010
6992 +#define USB_CMD_ASYNC_SCHEDULE_EN 0x00000020
6993 +#define USB_CMD_INT_AA_DOORBELL 0x00000040
6994 +#define USB_CMD_ASP 0x00000300
6995 +#define USB_CMD_ASYNC_SCH_PARK_EN 0x00000800
6996 +#define USB_CMD_SUTW 0x00002000
6997 +#define USB_CMD_ATDTW 0x00004000
6998 +#define USB_CMD_ITC 0x00FF0000
6999 +
7000 +/* bit 15,3,2 are frame list size */
7001 +#define USB_CMD_FRAME_SIZE_1024 0x00000000
7002 +#define USB_CMD_FRAME_SIZE_512 0x00000004
7003 +#define USB_CMD_FRAME_SIZE_256 0x00000008
7004 +#define USB_CMD_FRAME_SIZE_128 0x0000000C
7005 +#define USB_CMD_FRAME_SIZE_64 0x00008000
7006 +#define USB_CMD_FRAME_SIZE_32 0x00008004
7007 +#define USB_CMD_FRAME_SIZE_16 0x00008008
7008 +#define USB_CMD_FRAME_SIZE_8 0x0000800C
7009 +
7010 +/* bit 9-8 are async schedule park mode count */
7011 +#define USB_CMD_ASP_00 0x00000000
7012 +#define USB_CMD_ASP_01 0x00000100
7013 +#define USB_CMD_ASP_10 0x00000200
7014 +#define USB_CMD_ASP_11 0x00000300
7015 +#define USB_CMD_ASP_BIT_POS 8
7016 +
7017 +/* bit 23-16 are interrupt threshold control */
7018 +#define USB_CMD_ITC_NO_THRESHOLD 0x00000000
7019 +#define USB_CMD_ITC_1_MICRO_FRM 0x00010000
7020 +#define USB_CMD_ITC_2_MICRO_FRM 0x00020000
7021 +#define USB_CMD_ITC_4_MICRO_FRM 0x00040000
7022 +#define USB_CMD_ITC_8_MICRO_FRM 0x00080000
7023 +#define USB_CMD_ITC_16_MICRO_FRM 0x00100000
7024 +#define USB_CMD_ITC_32_MICRO_FRM 0x00200000
7025 +#define USB_CMD_ITC_64_MICRO_FRM 0x00400000
7026 +#define USB_CMD_ITC_BIT_POS 16
7027 +
7028 +
7029 +
7030 +
7031 +/* USB STS Register Bit Masks */
7032 +#define USB_STS_INT 0x00000001
7033 +#define USB_STS_ERR 0x00000002
7034 +#define USB_STS_PORT_CHANGE 0x00000004
7035 +#define USB_STS_FRM_LST_ROLL 0x00000008
7036 +#define USB_STS_SYS_ERR 0x00000010
7037 +#define USB_STS_IAA 0x00000020
7038 +#define USB_STS_RESET 0x00000040
7039 +#define USB_STS_SOF 0x00000080
7040 +#define USB_STS_SUSPEND 0x00000100
7041 +#define USB_STS_HC_HALTED 0x00001000
7042 +#define USB_STS_RCL 0x00002000
7043 +#define USB_STS_PERIODIC_SCHEDULE 0x00004000
7044 +#define USB_STS_ASYNC_SCHEDULE 0x00008000
7045 +
7046 +/* USB INTR Register Bit Masks */
7047 +#define USB_INTR_INT_EN 0x00000001
7048 +#define USB_INTR_ERR_INT_EN 0x00000002
7049 +#define USB_INTR_PTC_DETECT_EN 0x00000004
7050 +#define USB_INTR_FRM_LST_ROLL_EN 0x00000008
7051 +#define USB_INTR_SYS_ERR_EN 0x00000010
7052 +#define USB_INTR_ASYN_ADV_EN 0x00000020
7053 +#define USB_INTR_RESET_EN 0x00000040
7054 +#define USB_INTR_SOF_EN 0x00000080
7055 +#define USB_INTR_DEVICE_SUSPEND 0x00000100
7056 +
7057 +/* Device Address bit masks */
7058 +#define USB_DEVICE_ADDRESS_MASK 0xFE000000
7059 +#define USB_DEVICE_ADDRESS_BIT_POS 25
7060 +
7061 +/* endpoint list address bit masks */
7062 +#define USB_EP_LIST_ADDRESS_MASK 0xfffff800
7063 +
7064 +
7065 +/* x_PORTSCx */
7066 +/* bit 31-30 are port transceiver select */
7067 +#define PORTSCX_PTS_MASK (3 << 30) /* parallel xcvr select mask */
7068 +#define PORTSCX_PHY_TYPE_SEL PORTSCX_PTS_MASK
7069 +#define PORTSCX_PTS_UTMI (0 << 30) /* UTMI/UTMI+ */
7070 +#define PORTSCX_PTS_PHILIPS (1 << 30) /* Philips classic */
7071 +#define PORTSCX_PTS_ULPI (2 << 30) /* ULPI */
7072 +#define PORTSCX_PTS_SERIAL (3 << 30) /* serial */
7073 +#define PORTSCX_PTS_FSLS PORTSCX_PTS_SERIAL
7074 +#define PORTSCX_PTS_ONCHIP PORTSCX_PTS_FSLS
7075 +
7076 +#define PORTSCX_STS (1 << 29) /* serial xcvr select */
7077 +
7078 +/* bit 28 is parallel transceiver width for UTMI interface */
7079 +#define PORTSCX_PTW_8BIT (0 << 28) /* 8 bit parallel xcvr */
7080 +#define PORTSCX_PTW_16BIT (1 << 28) /* 16 bi parallel xcvr */
7081 +
7082 +/* bit 27-26 are port speed */
7083 +#define PORTSCX_PORT_SPEED_FULL (0 << 26)
7084 +#define PORTSCX_PORT_SPEED_LOW (1 << 26)
7085 +#define PORTSCX_PORT_SPEED_HIGH (2 << 26)
7086 +#define PORTSCX_PORT_SPEED_UNDEF (3 << 26)
7087 +#define PORTSCX_PORT_SPEED_MASK (3 << 26)
7088 +
7089 +#define PORTSCX_PHY_LOW_POWER_SPD (1 << 23) /* phy low pwr suspend/clk disable */
7090 +
7091 +/* bit 19-16 are port test control */
7092 +#define PORTSCX_PTC_DISABLE (0 << 16)
7093 +#define PORTSCX_PTC_JSTATE (1 << 16)
7094 +#define PORTSCX_PTC_KSTATE (2 << 16)
7095 +#define PORTSCX_PTC_SEQNAK (3 << 16) /* SE0 (host) / NAK (device) */
7096 +#define PORTSCX_PTC_PACKET (4 << 16)
7097 +#define PORTSCX_PTC_FORCE_EN_HS (5 << 16)
7098 +#define PORTSCX_PTC_FORCE_EN_FS (6 << 16)
7099 +#define PORTSCX_PTC_FORCE_EN_LS (7 << 16)
7100 +
7101 +
7102 +/* bit 15-14 are port indicator control */
7103 +#define PORTSCX_PIC_OFF (0 << 14)
7104 +#define PORTSCX_PIC_AMBER (1 << 14)
7105 +#define PORTSCX_PIC_GREEN (2 << 14)
7106 +#define PORTSCX_PIC_UNDEF (3 << 14)
7107 +
7108 +#define PORTSCX_PORT_POWER (1 << 12) /* port power */
7109 +
7110 +/* bit 11-10 are line status */
7111 +#define PORTSCX_LS_MASK (3 << 10) /* Line State mask */
7112 +#define PORTSCX_LS_SE0 (0 << 10) /* SE0 */
7113 +#define PORTSCX_LS_K_STATE (1 << 10) /* K-state */
7114 +#define PORTSCX_LS_J_STATE (2 << 10) /* J-state */
7115 +
7116 +#define PORTSCX_PORT_RESET (1 << 8) /* Port reset */
7117 +#define PORTSCX_PORT_SUSPEND (1 << 7) /* Suspend */
7118 +#define PORTSCX_PORT_FORCE_RESUME (1 << 6) /* Force port resume */
7119 +#define PORTSCX_OVER_CURRENT_CHG (1 << 5) /* over current change */
7120 +#define PORTSCX_OVER_CURRENT_ACT (1 << 4) /* over currrent active */
7121 +#define PORTSCX_PORT_EN_DIS_CHANGE (1 << 3) /* port {en,dis}able change */
7122 +#define PORTSCX_PORT_ENABLE (1 << 2) /* port enabled */
7123 +#define PORTSCX_CONNECT_STATUS_CHANGE (1 << 1) /* connect status change */
7124 +#define PORTSCX_CURRENT_CONNECT_STATUS (1 << 0) /* current connect status */
7125 +
7126 +#define PORTSCX_W1C_BITS \
7127 + ( PORTSCX_CONNECT_STATUS_CHANGE | \
7128 + PORTSCX_PORT_EN_DIS_CHANGE | \
7129 + PORTSCX_OVER_CURRENT_CHG )
7130 +
7131 +
7132 +
7133 +/* UOG_OTGSC Register Bits */
7134 +/* control bits: */
7135 +#define OTGSC_CTRL_VBUS_DISCHARGE (1 << 0)
7136 +#define OTGSC_CTRL_VBUS_CHARGE (1 << 1)
7137 +#define OTGSC_CTRL_OTG_TERM (1 << 3) /* controls DM pulldown */
7138 +#define OTGSC_CTRL_DATA_PULSING (1 << 4)
7139 +#define OTGSC_CTRL_USB_ID_PU (1 << 5) /* enable ID pullup */
7140 +/* current status: (R/O) */
7141 +#define OTGSC_STS_USB_ID (1 << 8) /* 0=A-device 1=B-device */
7142 +#define OTGSC_STS_A_VBUS_VALID (1 << 9)
7143 +#define OTGSC_STS_A_SESSION_VALID (1 << 10)
7144 +#define OTGSC_STS_B_SESSION_VALID (1 << 11)
7145 +#define OTGSC_STS_B_SESSION_END (1 << 12)
7146 +#define OTGSC_STS_1ms_TIMER (1 << 13)
7147 +#define OTGSC_STS_DATA_PULSE (1 << 14)
7148 +/* interrupt status: (write to clear) */
7149 +#define OTGSC_INTSTS_MASK (0x7f << 16)
7150 +#define OTGSC_INTSTS_USB_ID (1 << 16)
7151 +#define OTGSC_INTSTS_A_VBUS_VALID (1 << 17)
7152 +#define OTGSC_INTSTS_A_SESSION_VALID (1 << 18)
7153 +#define OTGSC_INTSTS_B_SESSION_VALID (1 << 19)
7154 +#define OTGSC_INTSTS_B_SESSION_END (1 << 20)
7155 +#define OTGSC_INTSTS_1MS_TIMER (1 << 21)
7156 +#define OTGSC_INTSTS_DATA_PULSE (1 << 22)
7157 +/* interrupt enables: */
7158 +#define OTGSC_IE_MASK (0x7f << 24)
7159 +#define OTGSC_IE_USB_ID (1 << 24)
7160 +#define OTGSC_IE_A_VBUS_VALID (1 << 25)
7161 +#define OTGSC_IE_A_SESSION_VALID (1 << 26)
7162 +#define OTGSC_IE_B_SESSION_VALID (1 << 27)
7163 +#define OTGSC_IE_B_SESSION_END (1 << 28)
7164 +#define OTGSC_IE_1ms_TIMER (1 << 29)
7165 +#define OTGSC_IE_DATA_PULSE (1 << 30)
7166 +
7167 +#if 1 /* DDD FIXME these here for compatibility between my names and Leo's */
7168 +/* OTG interrupt enable bit masks */
7169 +#define OTGSC_INTERRUPT_ENABLE_BITS_MASK OTGSC_IE_MASK
7170 +
7171 +/* OTG interrupt status bit masks */
7172 +#define OTGSC_INTERRUPT_STATUS_BITS_MASK OTGSC_INTSTS_MASK
7173 +#endif // 1
7174 +
7175 +
7176 +
7177 +/* x_USBMODE */
7178 +#undef USBMODE_SDIS /* defined as bit 3 in drivers/usb/host/ehci.h */
7179 +#define USBMODE_SDIS (1 << 4) /* stream disable mode */
7180 +#define USBMODE_SLOM (1 << 3) /* setup lockout mode */
7181 +#define USBMODE_ES (1 << 2) /* (big) endian select */
7182 +#define USBMODE_CM_MASK (3 << 0) /* controller mode mask */
7183 +#define USBMODE_CM_HOST (3 << 0) /* host */
7184 +#define USBMODE_CM_DEVICE (2 << 0) /* device */
7185 +// DDD #define USBMODE_CM_IDLE (0 << 0) /* idle */
7186 +
7187 +/* DDD for compatibility for now */
7188 +#define USB_MODE_CTRL_MODE_IDLE USBMODE_CM_IDLE
7189 +#define USB_MODE_CTRL_MODE_DEVICE USBMODE_CM_DEVICE
7190 +#define USB_MODE_CTRL_MODE_HOST USBMODE_CM_HOST
7191 +#define USB_MODE_SETUP_LOCK_OFF USBMODE_SLOM
7192 +#define USB_MODE_STREAM_DISABLE USBMODE_SDIS
7193 +
7194 +
7195 +/* ULPIVIEW register bits */
7196 +#define ULPIVW_WU (1 << 31) /* Wakeup */
7197 +#define ULPIVW_RUN (1 << 30) /* read/write run */
7198 +#define ULPIVW_WRITE (1 << 29) /* 0=read 1=write */
7199 +#define ULPIVW_SS (1 << 27) /* SyncState */
7200 +#define ULPIVW_PORT_MASK 0x07 /* Port field */
7201 +#define ULPIVW_PORT_SHIFT 24
7202 +#define ULPIVW_ADDR_MASK 0xFF /* data address field */
7203 +#define ULPIVW_ADDR_SHIFT 16
7204 +#define ULPIVW_RDATA_MASK 0xFF /* read data field */
7205 +#define ULPIVW_RDATA_SHIFT 8
7206 +#define ULPIVW_WDATA_MASK 0xFF /* write data field */
7207 +#define ULPIVW_WDATA_SHIFT 0
7208 +
7209 +
7210 +/* Endpoint Flush Register */
7211 +#define EPFLUSH_TX_OFFSET 0x00010000
7212 +#define EPFLUSH_RX_OFFSET 0x00000000
7213 +
7214 +/* Endpoint Setup Status bit masks */
7215 +#define EP_SETUP_STATUS_MASK 0x0000003F
7216 +#define EP_SETUP_STATUS_EP0 0x00000001
7217 +
7218 +/* ENDPOINTCTRLx Register Bit Masks */
7219 +#define EPCTRL_TX_ENABLE 0x00800000
7220 +#define EPCTRL_TX_DATA_TOGGLE_RST 0x00400000 /* Not EP0 */
7221 +#define EPCTRL_TX_DATA_TOGGLE_INH 0x00200000 /* Not EP0 */
7222 +#define EPCTRL_TX_TYPE 0x000C0000
7223 +#define EPCTRL_TX_DATA_SOURCE 0x00020000 /* Not EP0 */
7224 +#define EPCTRL_TX_EP_STALL 0x00010000
7225 +#define EPCTRL_RX_ENABLE 0x00000080
7226 +#define EPCTRL_RX_DATA_TOGGLE_RST 0x00000040 /* Not EP0 */
7227 +#define EPCTRL_RX_DATA_TOGGLE_INH 0x00000020 /* Not EP0 */
7228 +#define EPCTRL_RX_TYPE 0x0000000C
7229 +#define EPCTRL_RX_DATA_SINK 0x00000002 /* Not EP0 */
7230 +#define EPCTRL_RX_EP_STALL 0x00000001
7231 +
7232 +/* bit 19-18 and 3-2 are endpoint type */
7233 +#define EPCTRL_EP_TYPE_CONTROL 0
7234 +#define EPCTRL_EP_TYPE_ISO 1
7235 +#define EPCTRL_EP_TYPE_BULK 2
7236 +#define EPCTRL_EP_TYPE_INTERRUPT 3
7237 +#define EPCTRL_TX_EP_TYPE_SHIFT 18
7238 +#define EPCTRL_RX_EP_TYPE_SHIFT 2
7239 +
7240 +/* SNOOPn Register Bit Masks */
7241 +#define SNOOP_ADDRESS_MASK 0xFFFFF000
7242 +#define SNOOP_SIZE_ZERO 0x00 /* snooping disable */
7243 +#define SNOOP_SIZE_4KB 0x0B /* 4KB snoop size */
7244 +#define SNOOP_SIZE_8KB 0x0C
7245 +#define SNOOP_SIZE_16KB 0x0D
7246 +#define SNOOP_SIZE_32KB 0x0E
7247 +#define SNOOP_SIZE_64KB 0x0F
7248 +#define SNOOP_SIZE_128KB 0x10
7249 +#define SNOOP_SIZE_256KB 0x11
7250 +#define SNOOP_SIZE_512KB 0x12
7251 +#define SNOOP_SIZE_1MB 0x13
7252 +#define SNOOP_SIZE_2MB 0x14
7253 +#define SNOOP_SIZE_4MB 0x15
7254 +#define SNOOP_SIZE_8MB 0x16
7255 +#define SNOOP_SIZE_16MB 0x17
7256 +#define SNOOP_SIZE_32MB 0x18
7257 +#define SNOOP_SIZE_64MB 0x19
7258 +#define SNOOP_SIZE_128MB 0x1A
7259 +#define SNOOP_SIZE_256MB 0x1B
7260 +#define SNOOP_SIZE_512MB 0x1C
7261 +#define SNOOP_SIZE_1GB 0x1D
7262 +#define SNOOP_SIZE_2GB 0x1E /* 2GB snoop size */
7263 +
7264 +/* pri_ctrl Register Bit Masks */
7265 +#define PRI_CTRL_PRI_LVL1 0x0000000C
7266 +#define PRI_CTRL_PRI_LVL0 0x00000003
7267 +
7268 +/* si_ctrl Register Bit Masks */
7269 +#define SI_CTRL_ERR_DISABLE 0x00000010
7270 +#define SI_CTRL_IDRC_DISABLE 0x00000008
7271 +#define SI_CTRL_RD_SAFE_EN 0x00000004
7272 +#define SI_CTRL_RD_PREFETCH_DISABLE 0x00000002
7273 +#define SI_CTRL_RD_PREFEFETCH_VAL 0x00000001
7274 +
7275 +
7276 +/* control Register Bit Masks */
7277 +#define USB_CTRL_IOENB 0x00000004
7278 +#define USB_CTRL_ULPI_INT0EN 0x00000001
7279 +
7280 +
7281 +/* Endpoint Transfer Descriptor bit Masks */
7282 +#define DTD_NEXT_TERMINATE 0x00000001
7283 +#define DTD_IOC 0x00008000
7284 +#define DTD_STATUS_ACTIVE 0x00000080
7285 +#define DTD_STATUS_HALTED 0x00000040
7286 +#define DTD_STATUS_DATA_BUFF_ERR 0x00000020
7287 +#define DTD_STATUS_TRANSACTION_ERR 0x00000008
7288 +#define DTD_RESERVED_FIELDS 0x80007300
7289 +#define DTD_ADDR_MASK 0xFFFFFFE0
7290 +#define DTD_PACKET_SIZE 0x7FFF0000
7291 +#define DTD_LENGTH_BIT_POS 16
7292 +#define DTD_ERROR_MASK (DTD_STATUS_HALTED | \
7293 + DTD_STATUS_DATA_BUFF_ERR | \
7294 + DTD_STATUS_TRANSACTION_ERR)
7295 +/* Alignment requirements; must be a power of two */
7296 +#define DTD_ALIGNMENT 0x20
7297 +#define QH_ALIGNMENT 2048
7298 +
7299 +/* Controller dma boundary */
7300 +#define UDC_DMA_BOUNDARY 0x1000
7301 +
7302 +#if defined CONFIG_PPC32
7303 +#define fsl_readl(addr) in_le32((addr))
7304 +#define fsl_writel(addr, val32) out_le32((addr), (val32))
7305 +#elif defined CONFIG_COLDFIRE
7306 +#define fsl_readl(addr) in_be32((__force unsigned *)(addr))
7307 +#define fsl_writel(val32, addr) out_be32((__force unsigned *)(addr), (val32))
7308 +
7309 +#define fsl_readw(addr) in_be16((__force unsigned *)(addr))
7310 +#define fsl_writew(val16, addr) out_be16((__force unsigned *)(addr), (val16))
7311 +#else
7312 +#error fsl_{readl, writel} must be defined
7313 +#endif
7314 +
7315 +#endif /* __FSL_USB2_H */
7316 --- /dev/null
7317 +++ b/include/linux/usb/fsl_xcvr.h
7318 @@ -0,0 +1,42 @@
7319 +/*
7320 + * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
7321 + */
7322 +
7323 +/*
7324 + * The code contained herein is licensed under the GNU General Public
7325 + * License. You may obtain a copy of the GNU General Public License
7326 + * Version 2 or later at the following locations:
7327 + *
7328 + * http://www.opensource.org/licenses/gpl-license.html
7329 + * http://www.gnu.org/copyleft/gpl.html
7330 + */
7331 +
7332 +enum fsl_usb_ctrlr {
7333 + USB_CTRLR_H1 = 0,
7334 + USB_CTRLR_H2 = 1,
7335 + USB_CTRLR_OTG = 2,
7336 +};
7337 +
7338 +
7339 +/**
7340 + * struct fsl_xcvr_ops - USB transceiver operations
7341 + *
7342 + * @xcvr_type: one of PORTSCX_PTS_{UTMI,SERIAL,ULPI}
7343 + * @init: transceiver- and board-specific initialization function
7344 + * @uninit: transceiver- and board-specific uninitialization function
7345 + * @set_host:
7346 + * @set_device:
7347 + *
7348 + */
7349 +struct fsl_xcvr_ops {
7350 + enum fsl_usb_ctrlr ctrlr; /* H1, H2, OTG */
7351 + u32 xcvr_type;
7352 +
7353 + void (*init)(struct platform_device *pdev);
7354 + void (*uninit)(struct platform_device *pdev);
7355 + void (*set_host)(void); /* DDD combine set_host and _device ? */
7356 + void (*set_device)(void);
7357 + void (*set_vbus_power)(struct fsl_usb2_platform_data *pdata, int on);
7358 +};
7359 +
7360 +
Personal OpenWRT clone
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