2 * diag.c - GPIO interface driver for Broadcom boards
4 * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
5 * Felix Fietkau <nbd@openwrt.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #include <linux/module.h>
24 #include <linux/pci.h>
25 #include <linux/kmod.h>
26 #include <linux/proc_fs.h>
27 #include <linux/timer.h>
28 #include <linux/version.h>
29 #include <asm/uaccess.h>
31 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
32 #include <linux/kobject.h>
33 #include <linux/workqueue.h>
34 #define hotplug_path uevent_helper
36 #include <linux/tqueue.h>
37 #define INIT_WORK INIT_TQUEUE
38 #define schedule_work schedule_task
39 #define work_struct tq_struct
44 #define getvar(str) (nvram_get(str)?:"")
46 static unsigned int gpiomask
= 0;
47 module_param(gpiomask
, int, 0644);
109 static void __init
bcm4780_init(void) {
112 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
113 printk(MODULE_NAME
": Spinning up HDD and enabling leds\n");
114 gpio_outen(pin
, pin
);
115 gpio_control(pin
, 0);
118 /* Wait 5s, so the HDD can spin up */
119 set_current_state(TASK_INTERRUPTIBLE
);
120 schedule_timeout(HZ
* 5);
123 static struct platform_t __initdata platforms
[] = {
126 .name
= "Linksys WAP54G V1",
128 { .name
= "reset", .gpio
= 1 << 0 },
131 { .name
= "diag", .gpio
= 1 << 3 },
132 { .name
= "wlan", .gpio
= 1 << 4 },
136 .name
= "Linksys WAP54G V3",
138 /* FIXME: verify this */
139 { .name
= "reset", .gpio
= 1 << 7 },
140 { .name
= "ses", .gpio
= 1 << 0 },
144 { .name
= "ses", .gpio
= 1 << 1 },
148 .name
= "Linksys WRT54G V1.x",
150 { .name
= "reset", .gpio
= 1 << 6 },
153 { .name
= "diag", .gpio
= 0x13 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
154 { .name
= "dmz", .gpio
= 0x12 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
158 .name
= "Linksys WRT54G/GS/GL",
160 { .name
= "reset", .gpio
= 1 << 6 },
161 { .name
= "ses", .gpio
= 1 << 4 },
164 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
165 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
166 { .name
= "ses_white", .gpio
= 1 << 2, .polarity
= REVERSE
},
167 { .name
= "ses_orange", .gpio
= 1 << 3, .polarity
= REVERSE
},
168 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
172 .name
= "Linksys WRTSL54GS",
174 { .name
= "reset", .gpio
= 1 << 6 },
175 { .name
= "ses", .gpio
= 1 << 4 },
178 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
179 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
180 { .name
= "ses_white", .gpio
= 1 << 5, .polarity
= REVERSE
},
181 { .name
= "ses_orange", .gpio
= 1 << 7, .polarity
= REVERSE
},
185 .name
= "Linksys WRT54G3G",
187 { .name
= "reset", .gpio
= 1 << 6 },
188 { .name
= "3g", .gpio
= 1 << 4 },
191 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
192 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
193 { .name
= "3g_green", .gpio
= 1 << 2, .polarity
= NORMAL
},
194 { .name
= "3g_blue", .gpio
= 1 << 3, .polarity
= NORMAL
},
195 { .name
= "3g_blink", .gpio
= 1 << 5, .polarity
= NORMAL
},
199 .name
= "Linksys WRT350N",
201 { .name
= "reset", .gpio
= 1 << 6 },
202 { .name
= "ses", .gpio
= 1 << 8 },
205 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
206 { .name
= "ses", .gpio
= 1 << 3, .polarity
= REVERSE
},
211 .name
= "ASUS WL-HDD",
213 { .name
= "reset", .gpio
= 1 << 6 },
216 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
217 { .name
= "usb", .gpio
= 1 << 2, .polarity
= NORMAL
},
221 .name
= "ASUS WL-300g",
223 { .name
= "reset", .gpio
= 1 << 6 },
226 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
230 .name
= "ASUS WL-500g",
232 { .name
= "reset", .gpio
= 1 << 6 },
235 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
239 .name
= "ASUS WL-500g Deluxe",
241 { .name
= "reset", .gpio
= 1 << 6 },
244 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
248 .name
= "ASUS WL-500g Premium",
250 { .name
= "reset", .gpio
= 1 << 0 },
251 { .name
= "ses", .gpio
= 1 << 4 },
254 { .name
= "power", .gpio
= 1 << 1, .polarity
= REVERSE
},
258 .name
= "ASUS WL-500W",
260 { .name
= "reset", .gpio
= 1 << 6 },
261 { .name
= "ses", .gpio
= 1 << 7 },
264 { .name
= "power", .gpio
= 1 << 5, .polarity
= REVERSE
},
268 .name
= "ASUS (unknown, BCM4702)",
270 { .name
= "reset", .gpio
= 1 << 6 },
273 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
277 .name
= "ASUS WL-700gE",
279 { .name
= "reset", .gpio
= 1 << 7 }, // on back, hardwired, always resets device regardless OS state
280 { .name
= "ses", .gpio
= 1 << 4 }, // on back, actual name ezsetup
281 { .name
= "power", .gpio
= 1 << 0 }, // on front
282 { .name
= "copy", .gpio
= 1 << 6 }, // on front
286 // GPIO that controls power led also enables/disables some essential functions
289 { .name
= "power", .gpio
= 1 << 3, .polarity
= NORMAL
}, // actual name power
291 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
}, // actual name ready
293 .platform_init
= bcm4780_init
,
297 .name
= "Buffalo WHR-G54S",
299 { .name
= "reset", .gpio
= 1 << 4 },
300 { .name
= "bridge", .gpio
= 1 << 5 },
301 { .name
= "ses", .gpio
= 1 << 0 },
304 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
305 { .name
= "internal", .gpio
= 1 << 3, .polarity
= REVERSE
},
306 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
307 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
308 { .name
= "wlan", .gpio
= 1 << 2, .polarity
= REVERSE
},
312 .name
= "Buffalo WBR2-G54",
315 { .name
= "reset", .gpio
= 1 << 7 },
318 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
322 .name
= "Buffalo WHR-HP-G54",
324 { .name
= "reset", .gpio
= 1 << 4 },
325 { .name
= "bridge", .gpio
= 1 << 5 },
326 { .name
= "ses", .gpio
= 1 << 0 },
329 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
330 { .name
= "internal", .gpio
= 1 << 3, .polarity
= REVERSE
},
331 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
332 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
333 { .name
= "wlan", .gpio
= 1 << 2, .polarity
= REVERSE
},
337 .name
= "Buffalo WHR2-A54G54",
339 { .name
= "reset", .gpio
= 1 << 4 },
342 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
346 .name
= "Buffalo WLA2-G54L",
349 { .name
= "reset", .gpio
= 1 << 7 },
352 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
356 .name
= "Buffalo WZR-G300N",
358 { .name
= "reset", .gpio
= 1 << 4 },
361 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
362 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
363 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
367 .name
= "Buffalo WZR-RS-G54",
369 { .name
= "ses", .gpio
= 1 << 0 },
370 { .name
= "reset", .gpio
= 1 << 4 },
373 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
374 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
375 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
379 .name
= "Buffalo WZR-RS-G54HP",
381 { .name
= "ses", .gpio
= 1 << 0 },
382 { .name
= "reset", .gpio
= 1 << 4 },
385 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
386 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
387 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
390 [BUFFALO_UNKNOWN
] = {
391 .name
= "Buffalo (unknown)",
393 { .name
= "reset", .gpio
= 1 << 7 },
396 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
399 [BUFFALO_UNKNOWN_4710
] = {
400 .name
= "Buffalo (unknown, BCM4710)",
402 { .name
= "reset", .gpio
= 1 << 4 },
405 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
410 .name
= "Siemens SE505 V1",
412 /* No usable buttons */
415 { .name
= "dmz", .gpio
= 1 << 4, .polarity
= REVERSE
},
416 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
420 .name
= "Siemens SE505 V2",
422 /* No usable buttons */
425 { .name
= "power", .gpio
= 1 << 5, .polarity
= REVERSE
},
426 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
427 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
432 .name
= "U.S. Robotics USR5461",
434 /* No usable buttons */
437 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
438 { .name
= "printer", .gpio
= 1 << 1, .polarity
= REVERSE
},
443 .name
= "Dell TrueMobile 2300",
445 { .name
= "reset", .gpio
= 1 << 0 },
448 { .name
= "wlan", .gpio
= 1 << 6, .polarity
= REVERSE
},
449 { .name
= "power", .gpio
= 1 << 7, .polarity
= REVERSE
},
454 .name
= "Motorola WE800G",
456 { .name
= "reset", .gpio
= 1 << 0 },
459 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
460 { .name
= "diag", .gpio
= 1 << 2, .polarity
= REVERSE
},
461 { .name
= "wlan_amber", .gpio
= 1 << 1, .polarity
= NORMAL
},
465 .name
= "Motorola WR850G V1",
467 { .name
= "reset", .gpio
= 1 << 0 },
470 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
471 { .name
= "diag", .gpio
= 1 << 3, .polarity
= REVERSE
},
472 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= NORMAL
},
473 { .name
= "wlan_red", .gpio
= 1 << 5, .polarity
= REVERSE
},
474 { .name
= "wlan_green", .gpio
= 1 << 7, .polarity
= REVERSE
},
478 .name
= "Motorola WR850G V2/V3",
480 { .name
= "reset", .gpio
= 1 << 5 },
483 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
484 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
485 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= REVERSE
},
486 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
491 .name
= "Belkin (unknown)",
492 /* FIXME: verify & add detection */
494 { .name
= "reset", .gpio
= 1 << 7 },
497 { .name
= "power", .gpio
= 1 << 5, .polarity
= NORMAL
},
498 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= NORMAL
},
499 { .name
= "connected", .gpio
= 1 << 0, .polarity
= NORMAL
},
504 .name
= "Netgear WGT634U",
506 { .name
= "reset", .gpio
= 1 << 2 },
509 { .name
= "power", .gpio
= 1 << 3, .polarity
= NORMAL
},
514 .name
= "Trendware TEW411BRP+",
516 { /* No usable buttons */ },
519 { .name
= "power", .gpio
= 1 << 7, .polarity
= NORMAL
},
520 { .name
= "wlan", .gpio
= 1 << 1, .polarity
= NORMAL
},
521 { .name
= "bridge", .gpio
= 1 << 6, .polarity
= NORMAL
},
526 .name
= "SimpleTech SimpleShare NAS",
528 { .name
= "reset", .gpio
= 1 << 7 }, // on back, hardwired, always resets device regardless OS state
529 { .name
= "power", .gpio
= 1 << 0 }, // on back
532 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
}, // actual name ready
534 .platform_init
= bcm4780_init
,
538 static struct platform_t __init
*platform_detect(void)
540 char *boardnum
, *boardtype
, *buf
;
542 boardnum
= getvar("boardnum");
543 boardtype
= getvar("boardtype");
545 if (strcmp(getvar("nvram_type"), "cfe") == 0)
546 return &platforms
[WGT634U
];
548 if (strncmp(getvar("model_no"), "WL700",5) == 0)
549 return &platforms
[WL700GE
];
551 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
552 /* CFE based - newer hardware */
553 if (!strcmp(boardnum
, "42")) { /* Linksys */
554 if (!strcmp(boardtype
, "0x478") && !strcmp(getvar("cardbus"), "1"))
555 return &platforms
[WRT350N
];
557 if (!strcmp(boardtype
, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
558 return &platforms
[WRT54G3G
];
560 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
561 return &platforms
[WRTSL54GS
];
563 /* default to WRT54G */
564 return &platforms
[WRT54G
];
567 if (!strcmp(boardnum
, "45")) { /* ASUS */
568 if (!strcmp(boardtype
,"0x042f"))
569 return &platforms
[WL500GP
];
570 else if (!strcmp(boardtype
,"0x0472"))
571 return &platforms
[WL500W
];
573 return &platforms
[WL500GD
];
576 if (!strcmp(boardnum
, "10496"))
577 return &platforms
[USR5461
];
578 } else { /* PMON based - old stuff */
580 /* Dell TrueMobile 2300 */
581 if (!strcmp(getvar("ModelId"),"WX-5565"))
582 return &platforms
[TM2300
];
584 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL
, 0) == 9) &&
585 (simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 30)) {
586 if (!strncmp(getvar("ModelId"),"WE800G", 6))
587 return &platforms
[WE800G
];
589 return &platforms
[WR850GV1
];
591 if (!strncmp(boardtype
, "bcm94710dev", 11)) {
592 if (!strcmp(boardnum
, "42"))
593 return &platforms
[WRT54GV1
];
594 if (simple_strtoul(boardnum
, NULL
, 0) == 2)
595 return &platforms
[WAP54GV1
];
597 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
598 return &platforms
[WL500G
];
599 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
600 /* Either WL-300g or WL-HDD, do more extensive checks */
601 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
602 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 1))
603 return &platforms
[WLHDD
];
604 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
605 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 10))
606 return &platforms
[WL300G
];
609 /* unknown asus stuff, probably bcm4702 */
610 if (!strncmp(boardnum
, "asusX", 5))
611 return &platforms
[ASUS_4702
];
614 if ((buf
= (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
615 /* Buffalo hardware, check id for specific hardware matches */
616 if (!strcmp(buf
, "29bb0332"))
617 return &platforms
[WBR2_G54
];
618 if (!strcmp(buf
, "29129"))
619 return &platforms
[WLA2_G54L
];
620 if (!strcmp(buf
, "30189"))
621 return &platforms
[WHR_HP_G54
];
622 if (!strcmp(buf
, "30182"))
623 return &platforms
[WHR_G54S
];
624 if (!strcmp(buf
, "290441dd"))
625 return &platforms
[WHR2_A54G54
];
626 if (!strcmp(buf
, "31120"))
627 return &platforms
[WZR_G300N
];
628 if (!strcmp(buf
, "30083"))
629 return &platforms
[WZR_RS_G54
];
630 if (!strcmp(buf
, "30103"))
631 return &platforms
[WZR_RS_G54HP
];
634 if (buf
|| !strcmp(boardnum
, "00")) {/* probably buffalo */
635 if (!strncmp(boardtype
, "bcm94710ap", 10))
636 return &platforms
[BUFFALO_UNKNOWN_4710
];
638 return &platforms
[BUFFALO_UNKNOWN
];
641 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
642 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
644 return &platforms
[WR850GV2V3
];
647 if (!strcmp(boardnum
, "44")) { /* Trendware TEW-411BRP+ */
648 return &platforms
[TEW411BRPP
];
651 if (!strncmp(boardnum
, "04FN52", 6)) /* SimpleTech SimpleShare */
652 return &platforms
[STI_NAS
];
658 static void register_buttons(struct button_t
*b
)
661 platform
.button_mask
|= b
->gpio
;
663 platform
.button_mask
&= ~gpiomask
;
665 gpio_outen(platform
.button_mask
, 0);
666 gpio_control(platform
.button_mask
, 0);
667 platform
.button_polarity
= gpio_in() & platform
.button_mask
;
668 gpio_intpolarity(platform
.button_mask
, platform
.button_polarity
);
669 gpio_intmask(platform
.button_mask
, platform
.button_mask
);
671 gpio_set_irqenable(1, button_handler
);
674 static void unregister_buttons(struct button_t
*b
)
676 gpio_intmask(platform
.button_mask
, 0);
678 gpio_set_irqenable(0, button_handler
);
681 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
682 static void hotplug_button(struct work_struct
*work
)
684 struct event_t
*event
= container_of(work
, struct event_t
, wq
);
686 static void hotplug_button(struct event_t
*event
)
689 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
690 call_usermodehelper (event
->argv
[0], event
->argv
, event
->envp
, 1);
692 call_usermodehelper (event
->argv
[0], event
->argv
, event
->envp
);
697 static irqreturn_t
button_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
702 in
= gpio_in() & platform
.button_mask
;
703 gpio_intpolarity(platform
.button_mask
, in
);
704 changed
= platform
.button_polarity
^ in
;
705 platform
.button_polarity
= in
;
707 changed
&= ~gpio_outen(0, 0);
709 for (b
= platform
.buttons
; b
->name
; b
++) {
710 struct event_t
*event
;
712 if (!(b
->gpio
& changed
)) continue;
716 if ((event
= (struct event_t
*)kmalloc (sizeof(struct event_t
), GFP_ATOMIC
))) {
718 char *scratch
= event
->buf
;
721 event
->argv
[i
++] = hotplug_path
;
722 event
->argv
[i
++] = "button";
726 event
->envp
[i
++] = "HOME=/";
727 event
->envp
[i
++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
728 event
->envp
[i
++] = scratch
;
729 scratch
+= sprintf (scratch
, "ACTION=%s", b
->pressed
?"pressed":"released") + 1;
730 event
->envp
[i
++] = scratch
;
731 scratch
+= sprintf (scratch
, "BUTTON=%s", b
->name
) + 1;
732 event
->envp
[i
++] = scratch
;
733 scratch
+= sprintf (scratch
, "SEEN=%ld", (jiffies
- b
->seen
)/HZ
) + 1;
736 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
737 INIT_WORK(&event
->wq
, (void *)(void *)hotplug_button
);
739 INIT_WORK(&event
->wq
, (void *)(void *)hotplug_button
, (void *)event
);
741 schedule_work(&event
->wq
);
749 static void register_leds(struct led_t
*l
)
751 struct proc_dir_entry
*p
;
755 leds
= proc_mkdir("led", diag
);
759 for(; l
->name
; l
++) {
760 if (l
->gpio
& gpiomask
)
763 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
768 val
|= (l
->polarity
== NORMAL
)?0:l
->gpio
;
771 if ((p
= create_proc_entry(l
->name
, S_IRUSR
, leds
))) {
772 l
->proc
.type
= PROC_LED
;
774 p
->data
= (void *) &l
->proc
;
775 p
->proc_fops
= &diag_proc_fops
;
779 gpio_outen(mask
, mask
);
780 gpio_control(mask
, 0);
784 static void unregister_leds(struct led_t
*l
)
787 remove_proc_entry(l
->name
, leds
);
789 remove_proc_entry("led", diag
);
792 static void set_led_extif(struct led_t
*led
)
794 gpio_set_extif(led
->gpio
, led
->state
);
797 static void led_flash(unsigned long dummy
) {
802 for (l
= platform
.leds
; l
->name
; l
++) {
804 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
806 l
->state
= !l
->state
;
816 u32 val
= ~gpio_in();
818 gpio_outen(mask
, mask
);
819 gpio_control(mask
, 0);
822 if (mask
|| extif_blink
) {
823 mod_timer(&led_timer
, jiffies
+ FLASH_TIME
);
827 static ssize_t
diag_proc_read(struct file
*file
, char *buf
, size_t count
, loff_t
*ppos
)
830 struct inode
*inode
= file
->f_dentry
->d_inode
;
831 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
833 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
838 if ((page
= kmalloc(1024, GFP_KERNEL
)) == NULL
)
841 if (dent
->data
!= NULL
) {
842 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
843 switch (handler
->type
) {
845 struct led_t
* led
= (struct led_t
*) handler
->ptr
;
847 len
= sprintf(page
, "f\n");
849 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
850 len
= sprintf(page
, "%d\n", led
->state
);
852 u32 in
= (gpio_in() & led
->gpio
? 1 : 0);
853 u8 p
= (led
->polarity
== NORMAL
? 0 : 1);
854 len
= sprintf(page
, "%d\n", ((in
^ p
) ? 1 : 0));
860 len
= sprintf(page
, "%s\n", platform
.name
);
863 len
= sprintf(page
, "0x%04x\n", gpiomask
);
870 len
= min_t(int, len
- *ppos
, count
);
871 if (copy_to_user(buf
, (page
+ *ppos
), len
)) {
884 static ssize_t
diag_proc_write(struct file
*file
, const char *buf
, size_t count
, loff_t
*ppos
)
887 struct inode
*inode
= file
->f_dentry
->d_inode
;
888 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
890 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
895 if ((page
= kmalloc(count
+ 1, GFP_KERNEL
)) == NULL
)
898 if (copy_from_user(page
, buf
, count
)) {
904 if (dent
->data
!= NULL
) {
905 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
906 switch (handler
->type
) {
908 struct led_t
*led
= (struct led_t
*) handler
->ptr
;
909 int p
= (led
->polarity
== NORMAL
? 0 : 1);
911 if (page
[0] == 'f') {
916 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
917 led
->state
= p
^ ((page
[0] == '1') ? 1 : 0);
920 gpio_outen(led
->gpio
, led
->gpio
);
921 gpio_control(led
->gpio
, 0);
922 gpio_out(led
->gpio
, ((p
^ (page
[0] == '1')) ? led
->gpio
: 0));
928 gpiomask
= simple_strtoul(page
, NULL
, 0);
930 if (platform
.buttons
) {
931 unregister_buttons(platform
.buttons
);
932 register_buttons(platform
.buttons
);
936 unregister_leds(platform
.leds
);
937 register_leds(platform
.leds
);
948 static int __init
diag_init(void)
950 static struct proc_dir_entry
*p
;
951 static struct platform_t
*detected
;
953 detected
= platform_detect();
955 printk(MODULE_NAME
": Router model not detected.\n");
958 memcpy(&platform
, detected
, sizeof(struct platform_t
));
960 printk(MODULE_NAME
": Detected '%s'\n", platform
.name
);
961 if (platform
.platform_init
!= NULL
) {
962 platform
.platform_init();
965 if (!(diag
= proc_mkdir("diag", NULL
))) {
966 printk(MODULE_NAME
": proc_mkdir on /proc/diag failed\n");
970 if ((p
= create_proc_entry("model", S_IRUSR
, diag
))) {
971 p
->data
= (void *) &proc_model
;
972 p
->proc_fops
= &diag_proc_fops
;
975 if ((p
= create_proc_entry("gpiomask", S_IRUSR
| S_IWUSR
, diag
))) {
976 p
->data
= (void *) &proc_gpiomask
;
977 p
->proc_fops
= &diag_proc_fops
;
980 if (platform
.buttons
)
981 register_buttons(platform
.buttons
);
984 register_leds(platform
.leds
);
989 static void __exit
diag_exit(void)
992 del_timer(&led_timer
);
994 if (platform
.buttons
)
995 unregister_buttons(platform
.buttons
);
998 unregister_leds(platform
.leds
);
1000 remove_proc_entry("model", diag
);
1001 remove_proc_entry("gpiomask", diag
);
1002 remove_proc_entry("diag", NULL
);
1005 module_init(diag_init
);
1006 module_exit(diag_exit
);
1008 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1009 MODULE_LICENSE("GPL");