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[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 WZR_RS_G54HP,
74 BUFFALO_UNKNOWN,
75 BUFFALO_UNKNOWN_4710,
76
77 /* Siemens */
78 SE505V1,
79 SE505V2,
80
81 /* US Robotics */
82 USR5461,
83
84 /* Dell */
85 TM2300,
86
87 /* Motorola */
88 WE800G,
89 WR850GV1,
90 WR850GV2V3,
91
92 /* Belkin */
93 BELKIN_UNKNOWN,
94
95 /* Trendware */
96 TEW411BRPP,
97 };
98
99 static struct platform_t __initdata platforms[] = {
100 /* Linksys */
101 [WAP54GV1] = {
102 .name = "Linksys WAP54G V1",
103 .buttons = {
104 { .name = "reset", .gpio = 1 << 0 },
105 },
106 .leds = {
107 { .name = "diag", .gpio = 1 << 3 },
108 { .name = "wlan", .gpio = 1 << 4 },
109 },
110 },
111 [WAP54GV3] = {
112 .name = "Linksys WAP54G V3",
113 .buttons = {
114 /* FIXME: verify this */
115 { .name = "reset", .gpio = 1 << 7 },
116 { .name = "ses", .gpio = 1 << 0 },
117 },
118 .leds = {
119 /* FIXME: diag? */
120 { .name = "ses", .gpio = 1 << 1 },
121 },
122 },
123 [WRT54GV1] = {
124 .name = "Linksys WRT54G V1.x",
125 .buttons = {
126 { .name = "reset", .gpio = 1 << 6 },
127 },
128 .leds = {
129 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
130 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
131 },
132 },
133 [WRT54G] = {
134 .name = "Linksys WRT54G/GS/GL",
135 .buttons = {
136 { .name = "reset", .gpio = 1 << 6 },
137 { .name = "ses", .gpio = 1 << 4 },
138 },
139 .leds = {
140 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
141 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
142 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
143 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
144 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
145 },
146 },
147 [WRTSL54GS] = {
148 .name = "Linksys WRTSL54GS",
149 .buttons = {
150 { .name = "reset", .gpio = 1 << 6 },
151 { .name = "ses", .gpio = 1 << 4 },
152 },
153 .leds = {
154 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
155 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
156 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
157 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
158 },
159 },
160 [WRT54G3G] = {
161 .name = "Linksys WRT54G3G",
162 .buttons = {
163 { .name = "reset", .gpio = 1 << 6 },
164 { .name = "3g", .gpio = 1 << 4 },
165 },
166 .leds = {
167 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
168 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
169 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
170 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
171 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
172 },
173 },
174 /* Asus */
175 [WLHDD] = {
176 .name = "ASUS WL-HDD",
177 .buttons = {
178 { .name = "reset", .gpio = 1 << 6 },
179 },
180 .leds = {
181 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
182 },
183 },
184 [WL300G] = {
185 .name = "ASUS WL-300g",
186 .buttons = {
187 { .name = "reset", .gpio = 1 << 6 },
188 },
189 .leds = {
190 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
191 },
192 },
193 [WL500G] = {
194 .name = "ASUS WL-500g",
195 .buttons = {
196 { .name = "reset", .gpio = 1 << 6 },
197 },
198 .leds = {
199 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
200 },
201 },
202 [WL500GD] = {
203 .name = "ASUS WL-500g Deluxe",
204 .buttons = {
205 { .name = "reset", .gpio = 1 << 6 },
206 },
207 .leds = {
208 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
209 },
210 },
211 [WL500GP] = {
212 .name = "ASUS WL-500g Premium",
213 .buttons = {
214 { .name = "reset", .gpio = 1 << 0 },
215 { .name = "ses", .gpio = 1 << 4 },
216 },
217 .leds = {
218 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
219 },
220 },
221 [ASUS_4702] = {
222 .name = "ASUS (unknown, BCM4702)",
223 .buttons = {
224 { .name = "reset", .gpio = 1 << 6 },
225 },
226 .leds = {
227 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
228 },
229 },
230 /* Buffalo */
231 [WHR_G54S] = {
232 .name = "Buffalo WHR-G54S",
233 .buttons = {
234 { .name = "reset", .gpio = 1 << 4 },
235 { .name = "bridge", .gpio = 1 << 5 },
236 { .name = "ses", .gpio = 1 << 0 },
237 },
238 .leds = {
239 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
240 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
241 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
242 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
243 },
244 },
245 [WBR2_G54] = {
246 .name = "Buffalo WBR2-G54",
247 /* FIXME: verify */
248 .buttons = {
249 { .name = "reset", .gpio = 1 << 7 },
250 },
251 .leds = {
252 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
253 },
254 },
255 [WHR_HP_G54] = {
256 .name = "Buffalo WHR-HP-G54",
257 .buttons = {
258 { .name = "reset", .gpio = 1 << 4 },
259 { .name = "bridge", .gpio = 1 << 5 },
260 { .name = "ses", .gpio = 1 << 0 },
261 },
262 .leds = {
263 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
264 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
265 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
266 },
267 },
268 [WHR2_A54G54] = {
269 .name = "Buffalo WHR2-A54G54",
270 .buttons = {
271 { .name = "reset", .gpio = 1 << 4 },
272 },
273 .leds = {
274 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
275 },
276 },
277 [WLA2_G54L] = {
278 .name = "Buffalo WLA2-G54L",
279 /* FIXME: verify */
280 .buttons = {
281 { .name = "reset", .gpio = 1 << 7 },
282 },
283 .leds = {
284 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
285 },
286 },
287 [WZR_RS_G54] = {
288 .name = "Buffalo WZR-RS-G54",
289 .buttons = {
290 { .name = "ses", .gpio = 1 << 0 },
291 { .name = "reset", .gpio = 1 << 4 },
292 },
293 .leds = {
294 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
295 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
296 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
297 },
298 },
299 [WZR_RS_G54HP] = {
300 .name = "Buffalo WZR-RS-G54HP",
301 .buttons = {
302 { .name = "ses", .gpio = 1 << 0 },
303 { .name = "reset", .gpio = 1 << 4 },
304 },
305 .leds = {
306 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
307 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
308 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
309 },
310 },
311 [BUFFALO_UNKNOWN] = {
312 .name = "Buffalo (unknown)",
313 .buttons = {
314 { .name = "reset", .gpio = 1 << 7 },
315 },
316 .leds = {
317 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
318 },
319 },
320 [BUFFALO_UNKNOWN_4710] = {
321 .name = "Buffalo (unknown, BCM4710)",
322 .buttons = {
323 { .name = "reset", .gpio = 1 << 4 },
324 },
325 .leds = {
326 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
327 },
328 },
329 /* Siemens */
330 [SE505V1] = {
331 .name = "Siemens SE505 V1",
332 .buttons = {
333 /* No usable buttons */
334 },
335 .leds = {
336 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
337 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
338 },
339 },
340 [SE505V2] = {
341 .name = "Siemens SE505 V2",
342 .buttons = {
343 /* No usable buttons */
344 },
345 .leds = {
346 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
347 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
348 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
349 },
350 },
351 /* US Robotics */
352 [USR5461] = {
353 .name = "U.S. Robotics USR5461",
354 .buttons = {
355 /* No usable buttons */
356 },
357 .leds = {
358 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
359 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
360 },
361 },
362 /* Dell */
363 [TM2300] = {
364 .name = "Dell TrueMobile 2300",
365 .buttons = {
366 { .name = "reset", .gpio = 1 << 0 },
367 },
368 .leds = {
369 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
370 },
371 },
372 /* Motorola */
373 [WE800G] = {
374 .name = "Motorola WE800G",
375 .buttons = {
376 { .name = "reset", .gpio = 1 << 0 },
377 },
378 .leds = {
379 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
380 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
381 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
382 },
383 },
384 [WR850GV1] = {
385 .name = "Motorola WR850G V1",
386 .buttons = {
387 { .name = "reset", .gpio = 1 << 0 },
388 },
389 .leds = {
390 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
391 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
392 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
393 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
394 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
395 },
396 },
397 [WR850GV2V3] = {
398 .name = "Motorola WR850G V2/V3",
399 .buttons = {
400 { .name = "reset", .gpio = 1 << 5 },
401 },
402 .leds = {
403 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
404 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
405 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
406 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
407 },
408 },
409 /* Belkin */
410 [BELKIN_UNKNOWN] = {
411 .name = "Belkin (unknown)",
412 /* FIXME: verify & add detection */
413 .buttons = {
414 { .name = "reset", .gpio = 1 << 7 },
415 },
416 .leds = {
417 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
418 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
419 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
420 },
421 },
422 /* Trendware */
423 [TEW411BRPP] = {
424 .name = "Trendware TEW411BRP+",
425 .buttons = {
426 { /* No usable buttons */ },
427 },
428 .leds = {
429 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
430 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
431 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
432 },
433 },
434 };
435
436 static struct platform_t __init *platform_detect(void)
437 {
438 char *boardnum, *boardtype, *buf;
439
440 boardnum = getvar("boardnum");
441 boardtype = getvar("boardtype");
442 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
443 /* CFE based - newer hardware */
444 if (!strcmp(boardnum, "42")) { /* Linksys */
445 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
446 return &platforms[WRT54G3G];
447
448 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
449 return &platforms[WRTSL54GS];
450
451 /* default to WRT54G */
452 return &platforms[WRT54G];
453 }
454
455 if (!strcmp(boardnum, "45")) { /* ASUS */
456 if (!strcmp(boardtype,"0x042f"))
457 return &platforms[WL500GP];
458 else
459 return &platforms[WL500GD];
460 }
461
462 if (!strcmp(boardnum, "10496"))
463 return &platforms[USR5461];
464 } else { /* PMON based - old stuff */
465 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
466 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
467 if (!strncmp(getvar("ModelId"),"WE800G", 6))
468 return &platforms[WE800G];
469 else
470 return &platforms[WR850GV1];
471 }
472 if (!strncmp(boardtype, "bcm94710dev", 11)) {
473 if (!strcmp(boardnum, "42"))
474 return &platforms[WRT54GV1];
475 if (simple_strtoul(boardnum, NULL, 0) == 2)
476 return &platforms[WAP54GV1];
477 }
478 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
479 return &platforms[WL500G];
480 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
481 /* Either WL-300g or WL-HDD, do more extensive checks */
482 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
483 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
484 return &platforms[WLHDD];
485 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
486 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
487 return &platforms[WL300G];
488 }
489
490 /* unknown asus stuff, probably bcm4702 */
491 if (!strncmp(boardnum, "asusX", 5))
492 return &platforms[ASUS_4702];
493 }
494
495 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
496 /* Buffalo hardware, check id for specific hardware matches */
497 if (!strcmp(buf, "29bb0332"))
498 return &platforms[WBR2_G54];
499 if (!strcmp(buf, "29129"))
500 return &platforms[WLA2_G54L];
501 if (!strcmp(buf, "30189"))
502 return &platforms[WHR_HP_G54];
503 if (!strcmp(buf, "30182"))
504 return &platforms[WHR_G54S];
505 if (!strcmp(buf, "290441dd"))
506 return &platforms[WHR2_A54G54];
507 if (!strcmp(buf, "30083"))
508 return &platforms[WZR_RS_G54];
509 if (!strcmp(buf, "30103"))
510 return &platforms[WZR_RS_G54HP];
511 }
512
513 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
514 if (!strncmp(boardtype, "bcm94710ap", 10))
515 return &platforms[BUFFALO_UNKNOWN_4710];
516 else
517 return &platforms[BUFFALO_UNKNOWN];
518 }
519
520
521 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
522 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
523
524 return &platforms[WR850GV2V3];
525 }
526
527 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
528 return &platforms[TEW411BRPP];
529 }
530
531 /* not found */
532 return NULL;
533 }
534
535 static void register_buttons(struct button_t *b)
536 {
537 for (; b->name; b++)
538 platform.button_mask |= b->gpio;
539
540 platform.button_mask &= ~gpiomask;
541
542 gpio_outen(platform.button_mask, 0);
543 gpio_control(platform.button_mask, 0);
544 platform.button_polarity = gpio_in() & platform.button_mask;
545 gpio_intpolarity(platform.button_mask, platform.button_polarity);
546 gpio_intmask(platform.button_mask, platform.button_mask);
547
548 gpio_set_irqenable(1, button_handler);
549 }
550
551 static void unregister_buttons(struct button_t *b)
552 {
553 gpio_intmask(platform.button_mask, 0);
554
555 gpio_set_irqenable(0, button_handler);
556 }
557
558 static void hotplug_button(struct event_t *event)
559 {
560 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
561 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
562 #else
563 call_usermodehelper (event->argv[0], event->argv, event->envp);
564 #endif
565 kfree(event);
566 }
567
568 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
569 {
570 struct button_t *b;
571 u32 in, changed;
572
573 in = gpio_in() & platform.button_mask;
574 gpio_intpolarity(platform.button_mask, in);
575 changed = platform.button_polarity ^ in;
576 platform.button_polarity = in;
577
578 changed &= ~gpio_outen(0, 0);
579
580 for (b = platform.buttons; b->name; b++) {
581 struct event_t *event;
582
583 if (!(b->gpio & changed)) continue;
584
585 b->pressed ^= 1;
586
587 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
588 int i;
589 char *scratch = event->buf;
590
591 i = 0;
592 event->argv[i++] = hotplug_path;
593 event->argv[i++] = "button";
594 event->argv[i] = 0;
595
596 i = 0;
597 event->envp[i++] = "HOME=/";
598 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
599 event->envp[i++] = scratch;
600 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
601 event->envp[i++] = scratch;
602 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
603 event->envp[i++] = scratch;
604 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
605 event->envp[i] = 0;
606
607 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
608 schedule_work(&event->wq);
609 }
610
611 b->seen = jiffies;
612 }
613 return IRQ_HANDLED;
614 }
615
616 static void register_leds(struct led_t *l)
617 {
618 struct proc_dir_entry *p;
619 u32 mask = 0;
620 u32 val = 0;
621
622 leds = proc_mkdir("led", diag);
623 if (!leds)
624 return;
625
626 for(; l->name; l++) {
627 if (l->gpio & gpiomask)
628 continue;
629
630 if (l->gpio & GPIO_TYPE_EXTIF) {
631 l->state = 0;
632 set_led_extif(l);
633 } else {
634 mask |= l->gpio;
635 val |= (l->polarity == NORMAL)?0:l->gpio;
636 }
637
638 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
639 l->proc.type = PROC_LED;
640 l->proc.ptr = l;
641 p->data = (void *) &l->proc;
642 p->proc_fops = &diag_proc_fops;
643 }
644 }
645
646 gpio_outen(mask, mask);
647 gpio_control(mask, 0);
648 gpio_out(mask, val);
649 }
650
651 static void unregister_leds(struct led_t *l)
652 {
653 for(; l->name; l++)
654 remove_proc_entry(l->name, leds);
655
656 remove_proc_entry("led", diag);
657 }
658
659 static void set_led_extif(struct led_t *led)
660 {
661 gpio_set_extif(led->gpio, led->state);
662 }
663
664 static void led_flash(unsigned long dummy) {
665 struct led_t *l;
666 u32 mask = 0;
667 u8 extif_blink = 0;
668
669 for (l = platform.leds; l->name; l++) {
670 if (l->flash) {
671 if (l->gpio & GPIO_TYPE_EXTIF) {
672 extif_blink = 1;
673 l->state = !l->state;
674 set_led_extif(l);
675 } else {
676 mask |= l->gpio;
677 }
678 }
679 }
680
681 mask &= ~gpiomask;
682 if (mask) {
683 u32 val = ~gpio_in();
684
685 gpio_outen(mask, mask);
686 gpio_control(mask, 0);
687 gpio_out(mask, val);
688 }
689 if (mask || extif_blink) {
690 mod_timer(&led_timer, jiffies + FLASH_TIME);
691 }
692 }
693
694 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
695 {
696 #ifdef LINUX_2_4
697 struct inode *inode = file->f_dentry->d_inode;
698 struct proc_dir_entry *dent = inode->u.generic_ip;
699 #else
700 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
701 #endif
702 char *page;
703 int len = 0;
704
705 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
706 return -ENOBUFS;
707
708 if (dent->data != NULL) {
709 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
710 switch (handler->type) {
711 case PROC_LED: {
712 struct led_t * led = (struct led_t *) handler->ptr;
713 if (led->flash) {
714 len = sprintf(page, "f\n");
715 } else {
716 if (led->gpio & GPIO_TYPE_EXTIF) {
717 len = sprintf(page, "%d\n", led->state);
718 } else {
719 u32 in = (gpio_in() & led->gpio ? 1 : 0);
720 u8 p = (led->polarity == NORMAL ? 0 : 1);
721 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
722 }
723 }
724 break;
725 }
726 case PROC_MODEL:
727 len = sprintf(page, "%s\n", platform.name);
728 break;
729 case PROC_GPIOMASK:
730 len = sprintf(page, "0x%04x\n", gpiomask);
731 break;
732 }
733 }
734 len += 1;
735
736 if (*ppos < len) {
737 len = min_t(int, len - *ppos, count);
738 if (copy_to_user(buf, (page + *ppos), len)) {
739 kfree(page);
740 return -EFAULT;
741 }
742 *ppos += len;
743 } else {
744 len = 0;
745 }
746
747 return len;
748 }
749
750
751 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
752 {
753 #ifdef LINUX_2_4
754 struct inode *inode = file->f_dentry->d_inode;
755 struct proc_dir_entry *dent = inode->u.generic_ip;
756 #else
757 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
758 #endif
759 char *page;
760 int ret = -EINVAL;
761
762 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
763 return -ENOBUFS;
764
765 if (copy_from_user(page, buf, count)) {
766 kfree(page);
767 return -EINVAL;
768 }
769 page[count] = 0;
770
771 if (dent->data != NULL) {
772 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
773 switch (handler->type) {
774 case PROC_LED: {
775 struct led_t *led = (struct led_t *) handler->ptr;
776 int p = (led->polarity == NORMAL ? 0 : 1);
777
778 if (page[0] == 'f') {
779 led->flash = 1;
780 led_flash(0);
781 } else {
782 led->flash = 0;
783 if (led->gpio & GPIO_TYPE_EXTIF) {
784 led->state = p ^ ((page[0] == '1') ? 1 : 0);
785 set_led_extif(led);
786 } else {
787 gpio_outen(led->gpio, led->gpio);
788 gpio_control(led->gpio, 0);
789 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
790 }
791 }
792 break;
793 }
794 case PROC_GPIOMASK:
795 gpiomask = simple_strtoul(page, NULL, 0);
796
797 if (platform.buttons) {
798 unregister_buttons(platform.buttons);
799 register_buttons(platform.buttons);
800 }
801
802 if (platform.leds) {
803 unregister_leds(platform.leds);
804 register_leds(platform.leds);
805 }
806 break;
807 }
808 ret = count;
809 }
810
811 kfree(page);
812 return ret;
813 }
814
815 static int __init diag_init(void)
816 {
817 static struct proc_dir_entry *p;
818 static struct platform_t *detected;
819
820 detected = platform_detect();
821 if (!detected) {
822 printk(MODULE_NAME ": Router model not detected.\n");
823 return -ENODEV;
824 }
825 memcpy(&platform, detected, sizeof(struct platform_t));
826
827 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
828
829 if (!(diag = proc_mkdir("diag", NULL))) {
830 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
831 return -EINVAL;
832 }
833
834 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
835 p->data = (void *) &proc_model;
836 p->proc_fops = &diag_proc_fops;
837 }
838
839 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
840 p->data = (void *) &proc_gpiomask;
841 p->proc_fops = &diag_proc_fops;
842 }
843
844 if (platform.buttons)
845 register_buttons(platform.buttons);
846
847 if (platform.leds)
848 register_leds(platform.leds);
849
850 return 0;
851 }
852
853 static void __exit diag_exit(void)
854 {
855
856 del_timer(&led_timer);
857
858 if (platform.buttons)
859 unregister_buttons(platform.buttons);
860
861 if (platform.leds)
862 unregister_leds(platform.leds);
863
864 remove_proc_entry("model", diag);
865 remove_proc_entry("gpiomask", diag);
866 remove_proc_entry("diag", NULL);
867 }
868
869 module_init(diag_init);
870 module_exit(diag_exit);
871
872 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
873 MODULE_LICENSE("GPL");
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