66e86ccdc3257910561586cf8776632c77820ed0
[openwrt/openwrt.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 WRT350N,
58
59 /* ASUS */
60 WLHDD,
61 WL300G,
62 WL500G,
63 WL500GD,
64 WL500GP,
65 ASUS_4702,
66
67 /* Buffalo */
68 WBR2_G54,
69 WHR_G54S,
70 WHR_HP_G54,
71 WHR2_A54G54,
72 WLA2_G54L,
73 WZR_G300N,
74 WZR_RS_G54,
75 WZR_RS_G54HP,
76 BUFFALO_UNKNOWN,
77 BUFFALO_UNKNOWN_4710,
78
79 /* Siemens */
80 SE505V1,
81 SE505V2,
82
83 /* US Robotics */
84 USR5461,
85
86 /* Dell */
87 TM2300,
88
89 /* Motorola */
90 WE800G,
91 WR850GV1,
92 WR850GV2V3,
93
94 /* Belkin */
95 BELKIN_UNKNOWN,
96
97 /* Netgear */
98 WGT634U,
99
100 /* Trendware */
101 TEW411BRPP,
102 };
103
104 static struct platform_t __initdata platforms[] = {
105 /* Linksys */
106 [WAP54GV1] = {
107 .name = "Linksys WAP54G V1",
108 .buttons = {
109 { .name = "reset", .gpio = 1 << 0 },
110 },
111 .leds = {
112 { .name = "diag", .gpio = 1 << 3 },
113 { .name = "wlan", .gpio = 1 << 4 },
114 },
115 },
116 [WAP54GV3] = {
117 .name = "Linksys WAP54G V3",
118 .buttons = {
119 /* FIXME: verify this */
120 { .name = "reset", .gpio = 1 << 7 },
121 { .name = "ses", .gpio = 1 << 0 },
122 },
123 .leds = {
124 /* FIXME: diag? */
125 { .name = "ses", .gpio = 1 << 1 },
126 },
127 },
128 [WRT54GV1] = {
129 .name = "Linksys WRT54G V1.x",
130 .buttons = {
131 { .name = "reset", .gpio = 1 << 6 },
132 },
133 .leds = {
134 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
135 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
136 },
137 },
138 [WRT54G] = {
139 .name = "Linksys WRT54G/GS/GL",
140 .buttons = {
141 { .name = "reset", .gpio = 1 << 6 },
142 { .name = "ses", .gpio = 1 << 4 },
143 },
144 .leds = {
145 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
146 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
147 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
148 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
149 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
150 },
151 },
152 [WRTSL54GS] = {
153 .name = "Linksys WRTSL54GS",
154 .buttons = {
155 { .name = "reset", .gpio = 1 << 6 },
156 { .name = "ses", .gpio = 1 << 4 },
157 },
158 .leds = {
159 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
160 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
161 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
162 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
163 },
164 },
165 [WRT54G3G] = {
166 .name = "Linksys WRT54G3G",
167 .buttons = {
168 { .name = "reset", .gpio = 1 << 6 },
169 { .name = "3g", .gpio = 1 << 4 },
170 },
171 .leds = {
172 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
173 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
174 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
175 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
176 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
177 },
178 },
179 [WRT350N] = {
180 .name = "Linksys WRT350N",
181 .buttons = {
182 { .name = "reset", .gpio = 1 << 6 },
183 { .name = "ses", .gpio = 1 << 8 },
184 },
185 .leds = {
186 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
187 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
188 },
189 },
190 /* Asus */
191 [WLHDD] = {
192 .name = "ASUS WL-HDD",
193 .buttons = {
194 { .name = "reset", .gpio = 1 << 6 },
195 },
196 .leds = {
197 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
198 { .name = "usb", .gpio = 1 << 2, .polarity = NORMAL },
199 },
200 },
201 [WL300G] = {
202 .name = "ASUS WL-300g",
203 .buttons = {
204 { .name = "reset", .gpio = 1 << 6 },
205 },
206 .leds = {
207 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
208 },
209 },
210 [WL500G] = {
211 .name = "ASUS WL-500g",
212 .buttons = {
213 { .name = "reset", .gpio = 1 << 6 },
214 },
215 .leds = {
216 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
217 },
218 },
219 [WL500GD] = {
220 .name = "ASUS WL-500g Deluxe",
221 .buttons = {
222 { .name = "reset", .gpio = 1 << 6 },
223 },
224 .leds = {
225 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
226 },
227 },
228 [WL500GP] = {
229 .name = "ASUS WL-500g Premium",
230 .buttons = {
231 { .name = "reset", .gpio = 1 << 0 },
232 { .name = "ses", .gpio = 1 << 4 },
233 },
234 .leds = {
235 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
236 },
237 },
238 [ASUS_4702] = {
239 .name = "ASUS (unknown, BCM4702)",
240 .buttons = {
241 { .name = "reset", .gpio = 1 << 6 },
242 },
243 .leds = {
244 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
245 },
246 },
247 /* Buffalo */
248 [WHR_G54S] = {
249 .name = "Buffalo WHR-G54S",
250 .buttons = {
251 { .name = "reset", .gpio = 1 << 4 },
252 { .name = "bridge", .gpio = 1 << 5 },
253 { .name = "ses", .gpio = 1 << 0 },
254 },
255 .leds = {
256 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
257 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
258 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
259 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
260 },
261 },
262 [WBR2_G54] = {
263 .name = "Buffalo WBR2-G54",
264 /* FIXME: verify */
265 .buttons = {
266 { .name = "reset", .gpio = 1 << 7 },
267 },
268 .leds = {
269 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
270 },
271 },
272 [WHR_HP_G54] = {
273 .name = "Buffalo WHR-HP-G54",
274 .buttons = {
275 { .name = "reset", .gpio = 1 << 4 },
276 { .name = "bridge", .gpio = 1 << 5 },
277 { .name = "ses", .gpio = 1 << 0 },
278 },
279 .leds = {
280 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
281 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
282 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
283 },
284 },
285 [WHR2_A54G54] = {
286 .name = "Buffalo WHR2-A54G54",
287 .buttons = {
288 { .name = "reset", .gpio = 1 << 4 },
289 },
290 .leds = {
291 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
292 },
293 },
294 [WLA2_G54L] = {
295 .name = "Buffalo WLA2-G54L",
296 /* FIXME: verify */
297 .buttons = {
298 { .name = "reset", .gpio = 1 << 7 },
299 },
300 .leds = {
301 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
302 },
303 },
304 [WZR_G300N] = {
305 .name = "Buffalo WZR-G300N",
306 .buttons = {
307 { .name = "reset", .gpio = 1 << 4 },
308 },
309 .leds = {
310 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
311 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
312 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
313 },
314 },
315 [WZR_RS_G54] = {
316 .name = "Buffalo WZR-RS-G54",
317 .buttons = {
318 { .name = "ses", .gpio = 1 << 0 },
319 { .name = "reset", .gpio = 1 << 4 },
320 },
321 .leds = {
322 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
323 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
324 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
325 },
326 },
327 [WZR_RS_G54HP] = {
328 .name = "Buffalo WZR-RS-G54HP",
329 .buttons = {
330 { .name = "ses", .gpio = 1 << 0 },
331 { .name = "reset", .gpio = 1 << 4 },
332 },
333 .leds = {
334 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
335 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
336 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
337 },
338 },
339 [BUFFALO_UNKNOWN] = {
340 .name = "Buffalo (unknown)",
341 .buttons = {
342 { .name = "reset", .gpio = 1 << 7 },
343 },
344 .leds = {
345 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
346 },
347 },
348 [BUFFALO_UNKNOWN_4710] = {
349 .name = "Buffalo (unknown, BCM4710)",
350 .buttons = {
351 { .name = "reset", .gpio = 1 << 4 },
352 },
353 .leds = {
354 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
355 },
356 },
357 /* Siemens */
358 [SE505V1] = {
359 .name = "Siemens SE505 V1",
360 .buttons = {
361 /* No usable buttons */
362 },
363 .leds = {
364 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
365 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
366 },
367 },
368 [SE505V2] = {
369 .name = "Siemens SE505 V2",
370 .buttons = {
371 /* No usable buttons */
372 },
373 .leds = {
374 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
375 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
376 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
377 },
378 },
379 /* US Robotics */
380 [USR5461] = {
381 .name = "U.S. Robotics USR5461",
382 .buttons = {
383 /* No usable buttons */
384 },
385 .leds = {
386 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
387 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
388 },
389 },
390 /* Dell */
391 [TM2300] = {
392 .name = "Dell TrueMobile 2300",
393 .buttons = {
394 { .name = "reset", .gpio = 1 << 0 },
395 },
396 .leds = {
397 { .name = "wlan", .gpio = 1 << 6, .polarity = REVERSE },
398 { .name = "power", .gpio = 1 << 7, .polarity = REVERSE },
399 },
400 },
401 /* Motorola */
402 [WE800G] = {
403 .name = "Motorola WE800G",
404 .buttons = {
405 { .name = "reset", .gpio = 1 << 0 },
406 },
407 .leds = {
408 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
409 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
410 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
411 },
412 },
413 [WR850GV1] = {
414 .name = "Motorola WR850G V1",
415 .buttons = {
416 { .name = "reset", .gpio = 1 << 0 },
417 },
418 .leds = {
419 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
420 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
421 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
422 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
423 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
424 },
425 },
426 [WR850GV2V3] = {
427 .name = "Motorola WR850G V2/V3",
428 .buttons = {
429 { .name = "reset", .gpio = 1 << 5 },
430 },
431 .leds = {
432 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
433 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
434 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
435 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
436 },
437 },
438 /* Belkin */
439 [BELKIN_UNKNOWN] = {
440 .name = "Belkin (unknown)",
441 /* FIXME: verify & add detection */
442 .buttons = {
443 { .name = "reset", .gpio = 1 << 7 },
444 },
445 .leds = {
446 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
447 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
448 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
449 },
450 },
451 /* Netgear */
452 [WGT634U] = {
453 .name = "Netgear WGT634U",
454 .buttons = {
455 { .name = "reset", .gpio = 1 << 2 },
456 },
457 .leds = {
458 { .name = "power", .gpio = 1 << 3, .polarity = REVERSE },
459 },
460 },
461 /* Trendware */
462 [TEW411BRPP] = {
463 .name = "Trendware TEW411BRP+",
464 .buttons = {
465 { /* No usable buttons */ },
466 },
467 .leds = {
468 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
469 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
470 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
471 },
472 },
473 };
474
475 static struct platform_t __init *platform_detect(void)
476 {
477 char *boardnum, *boardtype, *buf;
478
479 boardnum = getvar("boardnum");
480 boardtype = getvar("boardtype");
481 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
482 /* CFE based - newer hardware */
483 if (!strcmp(boardnum, "42")) { /* Linksys */
484 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), 1))
485 return &platforms[WRT350N];
486
487 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
488 return &platforms[WRT54G3G];
489
490 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
491 return &platforms[WRTSL54GS];
492
493 /* default to WRT54G */
494 return &platforms[WRT54G];
495 }
496
497 if (!strcmp(boardnum, "45")) { /* ASUS */
498 if (!strcmp(boardtype,"0x042f"))
499 return &platforms[WL500GP];
500 else
501 return &platforms[WL500GD];
502 }
503
504 if (!strcmp(boardnum, "10496"))
505 return &platforms[USR5461];
506 } else { /* PMON based - old stuff */
507
508 /* Dell TrueMobile 2300 */
509 if (!strcmp(getvar("ModelId"),"WX-5565"))
510 return &platforms[TM2300];
511
512 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
513 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
514 if (!strncmp(getvar("ModelId"),"WE800G", 6))
515 return &platforms[WE800G];
516 else
517 return &platforms[WR850GV1];
518 }
519 if (!strncmp(boardtype, "bcm94710dev", 11)) {
520 if (!strcmp(boardnum, "42"))
521 return &platforms[WRT54GV1];
522 if (simple_strtoul(boardnum, NULL, 0) == 2)
523 return &platforms[WAP54GV1];
524 }
525 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
526 return &platforms[WL500G];
527 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
528 /* Either WL-300g or WL-HDD, do more extensive checks */
529 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
530 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
531 return &platforms[WLHDD];
532 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
533 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
534 return &platforms[WL300G];
535 }
536
537 /* unknown asus stuff, probably bcm4702 */
538 if (!strncmp(boardnum, "asusX", 5))
539 return &platforms[ASUS_4702];
540 }
541
542 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
543 /* Buffalo hardware, check id for specific hardware matches */
544 if (!strcmp(buf, "29bb0332"))
545 return &platforms[WBR2_G54];
546 if (!strcmp(buf, "29129"))
547 return &platforms[WLA2_G54L];
548 if (!strcmp(buf, "30189"))
549 return &platforms[WHR_HP_G54];
550 if (!strcmp(buf, "30182"))
551 return &platforms[WHR_G54S];
552 if (!strcmp(buf, "290441dd"))
553 return &platforms[WHR2_A54G54];
554 if (!strcmp(buf, "31120"))
555 return &platforms[WZR_G300N];
556 if (!strcmp(buf, "30083"))
557 return &platforms[WZR_RS_G54];
558 if (!strcmp(buf, "30103"))
559 return &platforms[WZR_RS_G54HP];
560 }
561
562 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
563 if (!strncmp(boardtype, "bcm94710ap", 10))
564 return &platforms[BUFFALO_UNKNOWN_4710];
565 else
566 return &platforms[BUFFALO_UNKNOWN];
567 }
568
569 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
570 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
571
572 return &platforms[WR850GV2V3];
573 }
574
575 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
576 return &platforms[TEW411BRPP];
577 }
578
579 /* not found */
580 return NULL;
581 }
582
583 static void register_buttons(struct button_t *b)
584 {
585 for (; b->name; b++)
586 platform.button_mask |= b->gpio;
587
588 platform.button_mask &= ~gpiomask;
589
590 gpio_outen(platform.button_mask, 0);
591 gpio_control(platform.button_mask, 0);
592 platform.button_polarity = gpio_in() & platform.button_mask;
593 gpio_intpolarity(platform.button_mask, platform.button_polarity);
594 gpio_intmask(platform.button_mask, platform.button_mask);
595
596 gpio_set_irqenable(1, button_handler);
597 }
598
599 static void unregister_buttons(struct button_t *b)
600 {
601 gpio_intmask(platform.button_mask, 0);
602
603 gpio_set_irqenable(0, button_handler);
604 }
605
606 static void hotplug_button(struct event_t *event)
607 {
608 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
609 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
610 #else
611 call_usermodehelper (event->argv[0], event->argv, event->envp);
612 #endif
613 kfree(event);
614 }
615
616 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
617 {
618 struct button_t *b;
619 u32 in, changed;
620
621 in = gpio_in() & platform.button_mask;
622 gpio_intpolarity(platform.button_mask, in);
623 changed = platform.button_polarity ^ in;
624 platform.button_polarity = in;
625
626 changed &= ~gpio_outen(0, 0);
627
628 for (b = platform.buttons; b->name; b++) {
629 struct event_t *event;
630
631 if (!(b->gpio & changed)) continue;
632
633 b->pressed ^= 1;
634
635 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
636 int i;
637 char *scratch = event->buf;
638
639 i = 0;
640 event->argv[i++] = hotplug_path;
641 event->argv[i++] = "button";
642 event->argv[i] = 0;
643
644 i = 0;
645 event->envp[i++] = "HOME=/";
646 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
647 event->envp[i++] = scratch;
648 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
649 event->envp[i++] = scratch;
650 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
651 event->envp[i++] = scratch;
652 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
653 event->envp[i] = 0;
654
655 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
656 schedule_work(&event->wq);
657 }
658
659 b->seen = jiffies;
660 }
661 return IRQ_HANDLED;
662 }
663
664 static void register_leds(struct led_t *l)
665 {
666 struct proc_dir_entry *p;
667 u32 mask = 0;
668 u32 val = 0;
669
670 leds = proc_mkdir("led", diag);
671 if (!leds)
672 return;
673
674 for(; l->name; l++) {
675 if (l->gpio & gpiomask)
676 continue;
677
678 if (l->gpio & GPIO_TYPE_EXTIF) {
679 l->state = 0;
680 set_led_extif(l);
681 } else {
682 mask |= l->gpio;
683 val |= (l->polarity == NORMAL)?0:l->gpio;
684 }
685
686 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
687 l->proc.type = PROC_LED;
688 l->proc.ptr = l;
689 p->data = (void *) &l->proc;
690 p->proc_fops = &diag_proc_fops;
691 }
692 }
693
694 gpio_outen(mask, mask);
695 gpio_control(mask, 0);
696 gpio_out(mask, val);
697 }
698
699 static void unregister_leds(struct led_t *l)
700 {
701 for(; l->name; l++)
702 remove_proc_entry(l->name, leds);
703
704 remove_proc_entry("led", diag);
705 }
706
707 static void set_led_extif(struct led_t *led)
708 {
709 gpio_set_extif(led->gpio, led->state);
710 }
711
712 static void led_flash(unsigned long dummy) {
713 struct led_t *l;
714 u32 mask = 0;
715 u8 extif_blink = 0;
716
717 for (l = platform.leds; l->name; l++) {
718 if (l->flash) {
719 if (l->gpio & GPIO_TYPE_EXTIF) {
720 extif_blink = 1;
721 l->state = !l->state;
722 set_led_extif(l);
723 } else {
724 mask |= l->gpio;
725 }
726 }
727 }
728
729 mask &= ~gpiomask;
730 if (mask) {
731 u32 val = ~gpio_in();
732
733 gpio_outen(mask, mask);
734 gpio_control(mask, 0);
735 gpio_out(mask, val);
736 }
737 if (mask || extif_blink) {
738 mod_timer(&led_timer, jiffies + FLASH_TIME);
739 }
740 }
741
742 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
743 {
744 #ifdef LINUX_2_4
745 struct inode *inode = file->f_dentry->d_inode;
746 struct proc_dir_entry *dent = inode->u.generic_ip;
747 #else
748 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
749 #endif
750 char *page;
751 int len = 0;
752
753 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
754 return -ENOBUFS;
755
756 if (dent->data != NULL) {
757 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
758 switch (handler->type) {
759 case PROC_LED: {
760 struct led_t * led = (struct led_t *) handler->ptr;
761 if (led->flash) {
762 len = sprintf(page, "f\n");
763 } else {
764 if (led->gpio & GPIO_TYPE_EXTIF) {
765 len = sprintf(page, "%d\n", led->state);
766 } else {
767 u32 in = (gpio_in() & led->gpio ? 1 : 0);
768 u8 p = (led->polarity == NORMAL ? 0 : 1);
769 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
770 }
771 }
772 break;
773 }
774 case PROC_MODEL:
775 len = sprintf(page, "%s\n", platform.name);
776 break;
777 case PROC_GPIOMASK:
778 len = sprintf(page, "0x%04x\n", gpiomask);
779 break;
780 }
781 }
782 len += 1;
783
784 if (*ppos < len) {
785 len = min_t(int, len - *ppos, count);
786 if (copy_to_user(buf, (page + *ppos), len)) {
787 kfree(page);
788 return -EFAULT;
789 }
790 *ppos += len;
791 } else {
792 len = 0;
793 }
794
795 return len;
796 }
797
798
799 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
800 {
801 #ifdef LINUX_2_4
802 struct inode *inode = file->f_dentry->d_inode;
803 struct proc_dir_entry *dent = inode->u.generic_ip;
804 #else
805 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
806 #endif
807 char *page;
808 int ret = -EINVAL;
809
810 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
811 return -ENOBUFS;
812
813 if (copy_from_user(page, buf, count)) {
814 kfree(page);
815 return -EINVAL;
816 }
817 page[count] = 0;
818
819 if (dent->data != NULL) {
820 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
821 switch (handler->type) {
822 case PROC_LED: {
823 struct led_t *led = (struct led_t *) handler->ptr;
824 int p = (led->polarity == NORMAL ? 0 : 1);
825
826 if (page[0] == 'f') {
827 led->flash = 1;
828 led_flash(0);
829 } else {
830 led->flash = 0;
831 if (led->gpio & GPIO_TYPE_EXTIF) {
832 led->state = p ^ ((page[0] == '1') ? 1 : 0);
833 set_led_extif(led);
834 } else {
835 gpio_outen(led->gpio, led->gpio);
836 gpio_control(led->gpio, 0);
837 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
838 }
839 }
840 break;
841 }
842 case PROC_GPIOMASK:
843 gpiomask = simple_strtoul(page, NULL, 0);
844
845 if (platform.buttons) {
846 unregister_buttons(platform.buttons);
847 register_buttons(platform.buttons);
848 }
849
850 if (platform.leds) {
851 unregister_leds(platform.leds);
852 register_leds(platform.leds);
853 }
854 break;
855 }
856 ret = count;
857 }
858
859 kfree(page);
860 return ret;
861 }
862
863 static int __init diag_init(void)
864 {
865 static struct proc_dir_entry *p;
866 static struct platform_t *detected;
867
868 detected = platform_detect();
869 if (!detected) {
870 printk(MODULE_NAME ": Router model not detected.\n");
871 return -ENODEV;
872 }
873 memcpy(&platform, detected, sizeof(struct platform_t));
874
875 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
876
877 if (!(diag = proc_mkdir("diag", NULL))) {
878 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
879 return -EINVAL;
880 }
881
882 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
883 p->data = (void *) &proc_model;
884 p->proc_fops = &diag_proc_fops;
885 }
886
887 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
888 p->data = (void *) &proc_gpiomask;
889 p->proc_fops = &diag_proc_fops;
890 }
891
892 if (platform.buttons)
893 register_buttons(platform.buttons);
894
895 if (platform.leds)
896 register_leds(platform.leds);
897
898 return 0;
899 }
900
901 static void __exit diag_exit(void)
902 {
903
904 del_timer(&led_timer);
905
906 if (platform.buttons)
907 unregister_buttons(platform.buttons);
908
909 if (platform.leds)
910 unregister_leds(platform.leds);
911
912 remove_proc_entry("model", diag);
913 remove_proc_entry("gpiomask", diag);
914 remove_proc_entry("diag", NULL);
915 }
916
917 module_init(diag_init);
918 module_exit(diag_exit);
919
920 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
921 MODULE_LICENSE("GPL");