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diag: add support for the buffalo wzr-rs-g54
[openwrt/svn-archive/archive.git] / package / broadcom-diag / src / diag.c
1 /*
2 * diag.c - GPIO interface driver for Broadcom boards
3 *
4 * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
5 * Felix Fietkau <nbd@openwrt.org>
6 *
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.
11 *
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.
16 *
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.
20 *
21 * $Id$
22 */
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>
30
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
35 #else
36 #include <linux/tqueue.h>
37 #define INIT_WORK INIT_TQUEUE
38 #define schedule_work schedule_task
39 #define work_struct tq_struct
40 #endif
41
42 #include "gpio.h"
43 #include "diag.h"
44 #define getvar(str) (nvram_get(str)?:"")
45
46 static unsigned int gpiomask = 0;
47 module_param(gpiomask, int, 0644);
48
49 enum {
50 /* Linksys */
51 WAP54GV1,
52 WAP54GV3,
53 WRT54GV1,
54 WRT54G,
55 WRTSL54GS,
56 WRT54G3G,
57
58 /* ASUS */
59 WLHDD,
60 WL300G,
61 WL500G,
62 WL500GD,
63 WL500GP,
64 ASUS_4702,
65
66 /* Buffalo */
67 WBR2_G54,
68 WHR_G54S,
69 WHR_HP_G54,
70 WHR2_A54G54,
71 WLA2_G54L,
72 WZR_RS_G54,
73 BUFFALO_UNKNOWN,
74 BUFFALO_UNKNOWN_4710,
75
76 /* Siemens */
77 SE505V1,
78 SE505V2,
79
80 /* US Robotics */
81 USR5461,
82
83 /* Dell */
84 TM2300,
85
86 /* Motorola */
87 WE800G,
88 WR850GV1,
89 WR850GV2V3,
90
91 /* Belkin */
92 BELKIN_UNKNOWN,
93 };
94
95 static struct platform_t __initdata platforms[] = {
96 /* Linksys */
97 [WAP54GV1] = {
98 .name = "Linksys WAP54G V1",
99 .buttons = {
100 { .name = "reset", .gpio = 1 << 0 },
101 },
102 .leds = {
103 { .name = "diag", .gpio = 1 << 3 },
104 { .name = "wlan", .gpio = 1 << 4 },
105 },
106 },
107 [WAP54GV3] = {
108 .name = "Linksys WAP54G V3",
109 .buttons = {
110 /* FIXME: verify this */
111 { .name = "reset", .gpio = 1 << 7 },
112 { .name = "ses", .gpio = 1 << 0 },
113 },
114 .leds = {
115 /* FIXME: diag? */
116 { .name = "ses", .gpio = 1 << 1 },
117 },
118 },
119 [WRT54GV1] = {
120 .name = "Linksys WRT54G V1.x",
121 .buttons = {
122 { .name = "reset", .gpio = 1 << 6 },
123 },
124 .leds = {
125 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
126 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
127 },
128 },
129 [WRT54G] = {
130 .name = "Linksys WRT54G/GS/GL",
131 .buttons = {
132 { .name = "reset", .gpio = 1 << 6 },
133 { .name = "ses", .gpio = 1 << 4 },
134 },
135 .leds = {
136 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
137 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
138 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
139 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
140 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
141 },
142 },
143 [WRTSL54GS] = {
144 .name = "Linksys WRTSL54GS",
145 .buttons = {
146 { .name = "reset", .gpio = 1 << 6 },
147 { .name = "ses", .gpio = 1 << 4 },
148 },
149 .leds = {
150 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
151 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
152 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
153 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
154 },
155 },
156 [WRT54G3G] = {
157 .name = "Linksys WRT54G3G",
158 .buttons = {
159 { .name = "reset", .gpio = 1 << 6 },
160 { .name = "3g", .gpio = 1 << 4 },
161 },
162 .leds = {
163 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
164 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
165 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
166 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
167 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
168 },
169 },
170 /* Asus */
171 [WLHDD] = {
172 .name = "ASUS WL-HDD",
173 .buttons = {
174 { .name = "reset", .gpio = 1 << 6 },
175 },
176 .leds = {
177 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
178 },
179 },
180 [WL300G] = {
181 .name = "ASUS WL-300g",
182 .buttons = {
183 { .name = "reset", .gpio = 1 << 6 },
184 },
185 .leds = {
186 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
187 },
188 },
189 [WL500G] = {
190 .name = "ASUS WL-500g",
191 .buttons = {
192 { .name = "reset", .gpio = 1 << 6 },
193 },
194 .leds = {
195 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
196 },
197 },
198 [WL500GD] = {
199 .name = "ASUS WL-500g Deluxe",
200 .buttons = {
201 { .name = "reset", .gpio = 1 << 6 },
202 },
203 .leds = {
204 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
205 },
206 },
207 [WL500GP] = {
208 .name = "ASUS WL-500g Premium",
209 .buttons = {
210 { .name = "reset", .gpio = 1 << 0 },
211 { .name = "ses", .gpio = 1 << 4 },
212 },
213 .leds = {
214 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
215 },
216 },
217 [ASUS_4702] = {
218 .name = "ASUS (unknown, BCM4702)",
219 .buttons = {
220 { .name = "reset", .gpio = 1 << 6 },
221 },
222 .leds = {
223 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
224 },
225 },
226 /* Buffalo */
227 [WHR_G54S] = {
228 .name = "Buffalo WHR-G54S",
229 .buttons = {
230 { .name = "reset", .gpio = 1 << 4 },
231 { .name = "bridge", .gpio = 1 << 5 },
232 { .name = "ses", .gpio = 1 << 0 },
233 },
234 .leds = {
235 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
236 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
237 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
238 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
239 },
240 },
241 [WBR2_G54] = {
242 .name = "Buffalo WBR2-G54",
243 /* FIXME: verify */
244 .buttons = {
245 { .name = "reset", .gpio = 1 << 7 },
246 },
247 .leds = {
248 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
249 },
250 },
251 [WHR_HP_G54] = {
252 .name = "Buffalo WHR-HP-G54",
253 .buttons = {
254 { .name = "reset", .gpio = 1 << 4 },
255 { .name = "bridge", .gpio = 1 << 5 },
256 { .name = "ses", .gpio = 1 << 0 },
257 },
258 .leds = {
259 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
260 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
261 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
262 },
263 },
264 [WHR2_A54G54] = {
265 .name = "Buffalo WHR2-A54G54",
266 .buttons = {
267 { .name = "reset", .gpio = 1 << 4 },
268 },
269 .leds = {
270 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
271 },
272 },
273 [WLA2_G54L] = {
274 .name = "Buffalo WLA2-G54L",
275 /* FIXME: verify */
276 .buttons = {
277 { .name = "reset", .gpio = 1 << 7 },
278 },
279 .leds = {
280 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
281 },
282 },
283 [WZR_RS_G54] = {
284 .name = "Buffalo WZR-RS-G54",
285 .buttons = {
286 { .name = "ses", .gpio = 1 << 0 },
287 { .name = "reset", .gpio = 1 << 7 },
288 },
289 .leds = {
290 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
291 },
292 },
293 [BUFFALO_UNKNOWN] = {
294 .name = "Buffalo (unknown)",
295 .buttons = {
296 { .name = "reset", .gpio = 1 << 7 },
297 },
298 .leds = {
299 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
300 },
301 },
302 [BUFFALO_UNKNOWN_4710] = {
303 .name = "Buffalo (unknown, BCM4710)",
304 .buttons = {
305 { .name = "reset", .gpio = 1 << 4 },
306 },
307 .leds = {
308 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
309 },
310 },
311 /* Siemens */
312 [SE505V1] = {
313 .name = "Siemens SE505 V1",
314 .buttons = {
315 /* No usable buttons */
316 },
317 .leds = {
318 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
319 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
320 },
321 },
322 [SE505V2] = {
323 .name = "Siemens SE505 V2",
324 .buttons = {
325 /* No usable buttons */
326 },
327 .leds = {
328 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
329 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
330 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
331 },
332 },
333 /* US Robotics */
334 [USR5461] = {
335 .name = "U.S. Robotics USR5461",
336 .buttons = {
337 /* No usable buttons */
338 },
339 .leds = {
340 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
341 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
342 },
343 },
344 /* Dell */
345 [TM2300] = {
346 .name = "Dell TrueMobile 2300",
347 .buttons = {
348 { .name = "reset", .gpio = 1 << 0 },
349 },
350 .leds = {
351 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
352 },
353 },
354 /* Motorola */
355 [WE800G] = {
356 .name = "Motorola WE800G",
357 .buttons = {
358 { .name = "reset", .gpio = 1 << 0 },
359 },
360 .leds = {
361 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
362 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
363 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
364 },
365 },
366 [WR850GV1] = {
367 .name = "Motorola WR850G V1",
368 .buttons = {
369 { .name = "reset", .gpio = 1 << 0 },
370 },
371 .leds = {
372 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
373 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
374 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
375 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
376 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
377 },
378 },
379 [WR850GV2V3] = {
380 .name = "Motorola WR850G V2/V3",
381 .buttons = {
382 { .name = "reset", .gpio = 1 << 5 },
383 },
384 .leds = {
385 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
386 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
387 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
388 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
389 },
390 },
391 /* Belkin */
392 [BELKIN_UNKNOWN] = {
393 .name = "Belkin (unknown)",
394 /* FIXME: verify & add detection */
395 .buttons = {
396 { .name = "reset", .gpio = 1 << 7 },
397 },
398 .leds = {
399 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
400 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
401 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
402 },
403 },
404 };
405
406 static struct platform_t __init *platform_detect(void)
407 {
408 char *boardnum, *boardtype, *buf;
409
410 boardnum = getvar("boardnum");
411 boardtype = getvar("boardtype");
412 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
413 /* CFE based - newer hardware */
414 if (!strcmp(boardnum, "42")) { /* Linksys */
415 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
416 return &platforms[WRT54G3G];
417
418 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
419 return &platforms[WRTSL54GS];
420
421 /* default to WRT54G */
422 return &platforms[WRT54G];
423 }
424
425 if (!strcmp(boardnum, "45")) { /* ASUS */
426 if (!strcmp(boardtype,"0x042f"))
427 return &platforms[WL500GP];
428 else
429 return &platforms[WL500GD];
430 }
431
432 if (!strcmp(boardnum, "10496"))
433 return &platforms[USR5461];
434 } else { /* PMON based - old stuff */
435 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
436 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
437 if (!strncmp(getvar("ModelId"),"WE800G", 6))
438 return &platforms[WE800G];
439 else
440 return &platforms[WR850GV1];
441 }
442 if (!strncmp(boardtype, "bcm94710dev", 11)) {
443 if (!strcmp(boardnum, "42"))
444 return &platforms[WRT54GV1];
445 if (simple_strtoul(boardnum, NULL, 0) == 2)
446 return &platforms[WAP54GV1];
447 }
448 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
449 return &platforms[WL500G];
450 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
451 /* Either WL-300g or WL-HDD, do more extensive checks */
452 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
453 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
454 return &platforms[WLHDD];
455 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
456 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
457 return &platforms[WL300G];
458 }
459
460 /* unknown asus stuff, probably bcm4702 */
461 if (!strncmp(boardnum, "asusX", 5))
462 return &platforms[ASUS_4702];
463 }
464
465 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
466 /* Buffalo hardware, check id for specific hardware matches */
467 if (!strcmp(buf, "29bb0332"))
468 return &platforms[WBR2_G54];
469 if (!strcmp(buf, "29129"))
470 return &platforms[WLA2_G54L];
471 if (!strcmp(buf, "30189"))
472 return &platforms[WHR_HP_G54];
473 if (!strcmp(buf, "30182"))
474 return &platforms[WHR_G54S];
475 if (!strcmp(buf, "290441dd"))
476 return &platforms[WHR2_A54G54];
477 if (!strcmp(buf, "30083"))
478 return &platforms[WZR_RS_G54];
479 }
480
481 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
482 if (!strncmp(boardtype, "bcm94710ap", 10))
483 return &platforms[BUFFALO_UNKNOWN_4710];
484 else
485 return &platforms[BUFFALO_UNKNOWN];
486 }
487
488
489 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
490 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
491
492 return &platforms[WR850GV2V3];
493 }
494
495 /* not found */
496 return NULL;
497 }
498
499 static void register_buttons(struct button_t *b)
500 {
501 for (; b->name; b++)
502 platform.button_mask |= b->gpio;
503
504 platform.button_mask &= ~gpiomask;
505
506 gpio_outen(platform.button_mask, 0);
507 gpio_control(platform.button_mask, 0);
508 platform.button_polarity = gpio_in() & platform.button_mask;
509 gpio_intpolarity(platform.button_mask, platform.button_polarity);
510 gpio_intmask(platform.button_mask, platform.button_mask);
511
512 gpio_set_irqenable(1, button_handler);
513 }
514
515 static void unregister_buttons(struct button_t *b)
516 {
517 gpio_intmask(platform.button_mask, 0);
518
519 gpio_set_irqenable(0, button_handler);
520 }
521
522 static void hotplug_button(struct event_t *event)
523 {
524 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
525 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
526 #else
527 call_usermodehelper (event->argv[0], event->argv, event->envp);
528 #endif
529 kfree(event);
530 }
531
532 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
533 {
534 struct button_t *b;
535 u32 in, changed;
536
537 in = gpio_in() & platform.button_mask;
538 gpio_intpolarity(platform.button_mask, in);
539 changed = platform.button_polarity ^ in;
540 platform.button_polarity = in;
541
542 for (b = platform.buttons; b->name; b++) {
543 struct event_t *event;
544
545 if (!(b->gpio & changed)) continue;
546
547 b->pressed ^= 1;
548
549 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
550 int i;
551 char *scratch = event->buf;
552
553 i = 0;
554 event->argv[i++] = hotplug_path;
555 event->argv[i++] = "button";
556 event->argv[i] = 0;
557
558 i = 0;
559 event->envp[i++] = "HOME=/";
560 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
561 event->envp[i++] = scratch;
562 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
563 event->envp[i++] = scratch;
564 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
565 event->envp[i++] = scratch;
566 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
567 event->envp[i] = 0;
568
569 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
570 schedule_work(&event->wq);
571 }
572
573 b->seen = jiffies;
574 }
575 return IRQ_HANDLED;
576 }
577
578 static void register_leds(struct led_t *l)
579 {
580 struct proc_dir_entry *p;
581 u32 mask = 0;
582 u32 val = 0;
583
584 leds = proc_mkdir("led", diag);
585 if (!leds)
586 return;
587
588 for(; l->name; l++) {
589 if (l->gpio & gpiomask)
590 continue;
591
592 if (l->gpio & GPIO_TYPE_EXTIF) {
593 l->state = 0;
594 set_led_extif(l);
595 } else {
596 mask |= l->gpio;
597 val |= (l->polarity == NORMAL)?0:l->gpio;
598 }
599
600 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
601 l->proc.type = PROC_LED;
602 l->proc.ptr = l;
603 p->data = (void *) &l->proc;
604 p->proc_fops = &diag_proc_fops;
605 }
606 }
607
608 gpio_outen(mask, mask);
609 gpio_control(mask, 0);
610 gpio_out(mask, val);
611 }
612
613 static void unregister_leds(struct led_t *l)
614 {
615 for(; l->name; l++)
616 remove_proc_entry(l->name, leds);
617
618 remove_proc_entry("led", diag);
619 }
620
621 static void set_led_extif(struct led_t *led)
622 {
623 gpio_set_extif(led->gpio, led->state);
624 }
625
626 static void led_flash(unsigned long dummy) {
627 struct led_t *l;
628 u32 mask = 0;
629 u8 extif_blink = 0;
630
631 for (l = platform.leds; l->name; l++) {
632 if (l->flash) {
633 if (l->gpio & GPIO_TYPE_EXTIF) {
634 extif_blink = 1;
635 l->state = !l->state;
636 set_led_extif(l);
637 } else {
638 mask |= l->gpio;
639 }
640 }
641 }
642
643 mask &= ~gpiomask;
644 if (mask) {
645 u32 val = ~gpio_in();
646
647 gpio_outen(mask, mask);
648 gpio_control(mask, 0);
649 gpio_out(mask, val);
650 }
651 if (mask || extif_blink) {
652 mod_timer(&led_timer, jiffies + FLASH_TIME);
653 }
654 }
655
656 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
657 {
658 #ifdef LINUX_2_4
659 struct inode *inode = file->f_dentry->d_inode;
660 struct proc_dir_entry *dent = inode->u.generic_ip;
661 #else
662 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
663 #endif
664 char *page;
665 int len = 0;
666
667 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
668 return -ENOBUFS;
669
670 if (dent->data != NULL) {
671 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
672 switch (handler->type) {
673 case PROC_LED: {
674 struct led_t * led = (struct led_t *) handler->ptr;
675 if (led->flash) {
676 len = sprintf(page, "f\n");
677 } else {
678 if (led->gpio & GPIO_TYPE_EXTIF) {
679 len = sprintf(page, "%d\n", led->state);
680 } else {
681 u32 in = (gpio_in() & led->gpio ? 1 : 0);
682 u8 p = (led->polarity == NORMAL ? 0 : 1);
683 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
684 }
685 }
686 break;
687 }
688 case PROC_MODEL:
689 len = sprintf(page, "%s\n", platform.name);
690 break;
691 case PROC_GPIOMASK:
692 len = sprintf(page, "0x%04x\n", gpiomask);
693 break;
694 }
695 }
696 len += 1;
697
698 if (*ppos < len) {
699 len = min_t(int, len - *ppos, count);
700 if (copy_to_user(buf, (page + *ppos), len)) {
701 kfree(page);
702 return -EFAULT;
703 }
704 *ppos += len;
705 } else {
706 len = 0;
707 }
708
709 return len;
710 }
711
712
713 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
714 {
715 #ifdef LINUX_2_4
716 struct inode *inode = file->f_dentry->d_inode;
717 struct proc_dir_entry *dent = inode->u.generic_ip;
718 #else
719 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
720 #endif
721 char *page;
722 int ret = -EINVAL;
723
724 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
725 return -ENOBUFS;
726
727 if (copy_from_user(page, buf, count)) {
728 kfree(page);
729 return -EINVAL;
730 }
731 page[count] = 0;
732
733 if (dent->data != NULL) {
734 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
735 switch (handler->type) {
736 case PROC_LED: {
737 struct led_t *led = (struct led_t *) handler->ptr;
738 int p = (led->polarity == NORMAL ? 0 : 1);
739
740 if (page[0] == 'f') {
741 led->flash = 1;
742 led_flash(0);
743 } else {
744 led->flash = 0;
745 if (led->gpio & GPIO_TYPE_EXTIF) {
746 led->state = p ^ ((page[0] == '1') ? 1 : 0);
747 set_led_extif(led);
748 } else {
749 gpio_outen(led->gpio, led->gpio);
750 gpio_control(led->gpio, 0);
751 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
752 }
753 }
754 break;
755 }
756 case PROC_GPIOMASK:
757 gpiomask = simple_strtoul(page, NULL, 0);
758
759 if (platform.buttons) {
760 unregister_buttons(platform.buttons);
761 register_buttons(platform.buttons);
762 }
763
764 if (platform.leds) {
765 unregister_leds(platform.leds);
766 register_leds(platform.leds);
767 }
768 break;
769 }
770 ret = count;
771 }
772
773 kfree(page);
774 return ret;
775 }
776
777 static int __init diag_init(void)
778 {
779 static struct proc_dir_entry *p;
780 static struct platform_t *detected;
781
782 detected = platform_detect();
783 if (!detected) {
784 printk(MODULE_NAME ": Router model not detected.\n");
785 return -ENODEV;
786 }
787 memcpy(&platform, detected, sizeof(struct platform_t));
788
789 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
790
791 if (!(diag = proc_mkdir("diag", NULL))) {
792 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
793 return -EINVAL;
794 }
795
796 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
797 p->data = (void *) &proc_model;
798 p->proc_fops = &diag_proc_fops;
799 }
800
801 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
802 p->data = (void *) &proc_gpiomask;
803 p->proc_fops = &diag_proc_fops;
804 }
805
806 if (platform.buttons)
807 register_buttons(platform.buttons);
808
809 if (platform.leds)
810 register_leds(platform.leds);
811
812 return 0;
813 }
814
815 static void __exit diag_exit(void)
816 {
817
818 del_timer(&led_timer);
819
820 if (platform.buttons)
821 unregister_buttons(platform.buttons);
822
823 if (platform.leds)
824 unregister_leds(platform.leds);
825
826 remove_proc_entry("model", diag);
827 remove_proc_entry("gpiomask", diag);
828 remove_proc_entry("diag", NULL);
829 }
830
831 module_init(diag_init);
832 module_exit(diag_exit);
833
834 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
835 MODULE_LICENSE("GPL");
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