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c53ff2f97ca4d528f9f45119160a59dba24378b2
[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 * Copyright (C) 2006-2007 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 #ifndef LINUX_2_4
32 #include <linux/workqueue.h>
33 #include <linux/skbuff.h>
34 #include <linux/netlink.h>
35 #include <net/sock.h>
36 extern struct sock *uevent_sock;
37 extern u64 uevent_next_seqnum(void);
38 #else
39 #include <linux/tqueue.h>
40 #define INIT_WORK INIT_TQUEUE
41 #define schedule_work schedule_task
42 #define work_struct tq_struct
43 #endif
44
45 #include "gpio.h"
46 #include "diag.h"
47 #define getvar(str) (nvram_get(str)?:"")
48
49 static int fill_event(struct event_t *);
50 static unsigned int gpiomask = 0;
51 module_param(gpiomask, int, 0644);
52
53 enum {
54 /* Linksys */
55 WAP54GV1,
56 WAP54GV3,
57 WRT54GV1,
58 WRT54G,
59 WRTSL54GS,
60 WRT54G3G,
61 WRT350N,
62
63 /* ASUS */
64 WLHDD,
65 WL300G,
66 WL500G,
67 WL500GD,
68 WL500GP,
69 WL500W,
70 ASUS_4702,
71 WL700GE,
72
73 /* Buffalo */
74 WBR2_G54,
75 WHR_G54S,
76 WHR_HP_G54,
77 WHR2_A54G54,
78 WLA2_G54L,
79 WZR_G300N,
80 WZR_RS_G54,
81 WZR_RS_G54HP,
82 BUFFALO_UNKNOWN,
83 BUFFALO_UNKNOWN_4710,
84
85 /* Siemens */
86 SE505V1,
87 SE505V2,
88
89 /* US Robotics */
90 USR5461,
91
92 /* Dell */
93 TM2300,
94
95 /* Motorola */
96 WE800G,
97 WR850GV1,
98 WR850GV2V3,
99
100 /* Belkin */
101 BELKIN_UNKNOWN,
102
103 /* Netgear */
104 WGT634U,
105
106 /* Trendware */
107 TEW411BRPP,
108
109 /* SimpleTech */
110 STI_NAS,
111
112 /* D-Link */
113 DIR130,
114 DIR330,
115 };
116
117 static void __init bcm4780_init(void) {
118 int pin = 1 << 3;
119
120 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
121 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
122 gpio_outen(pin, pin);
123 gpio_control(pin, 0);
124 gpio_out(pin, pin);
125
126 /* Wait 5s, so the HDD can spin up */
127 set_current_state(TASK_INTERRUPTIBLE);
128 schedule_timeout(HZ * 5);
129 }
130
131 static struct platform_t __initdata platforms[] = {
132 /* Linksys */
133 [WAP54GV1] = {
134 .name = "Linksys WAP54G V1",
135 .buttons = {
136 { .name = "reset", .gpio = 1 << 0 },
137 },
138 .leds = {
139 { .name = "diag", .gpio = 1 << 3 },
140 { .name = "wlan", .gpio = 1 << 4 },
141 },
142 },
143 [WAP54GV3] = {
144 .name = "Linksys WAP54G V3",
145 .buttons = {
146 /* FIXME: verify this */
147 { .name = "reset", .gpio = 1 << 7 },
148 { .name = "ses", .gpio = 1 << 0 },
149 },
150 .leds = {
151 /* FIXME: diag? */
152 { .name = "ses", .gpio = 1 << 1 },
153 },
154 },
155 [WRT54GV1] = {
156 .name = "Linksys WRT54G V1.x",
157 .buttons = {
158 { .name = "reset", .gpio = 1 << 6 },
159 },
160 .leds = {
161 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
162 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
163 },
164 },
165 [WRT54G] = {
166 .name = "Linksys WRT54G/GS/GL",
167 .buttons = {
168 { .name = "reset", .gpio = 1 << 6 },
169 { .name = "ses", .gpio = 1 << 4 },
170 },
171 .leds = {
172 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
173 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
174 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
175 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
176 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
177 },
178 },
179 [WRTSL54GS] = {
180 .name = "Linksys WRTSL54GS",
181 .buttons = {
182 { .name = "reset", .gpio = 1 << 6 },
183 { .name = "ses", .gpio = 1 << 4 },
184 },
185 .leds = {
186 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
187 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
188 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
189 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
190 },
191 },
192 [WRT54G3G] = {
193 .name = "Linksys WRT54G3G",
194 .buttons = {
195 { .name = "reset", .gpio = 1 << 6 },
196 { .name = "3g", .gpio = 1 << 4 },
197 },
198 .leds = {
199 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
200 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
201 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
202 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
203 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
204 },
205 },
206 [WRT350N] = {
207 .name = "Linksys WRT350N",
208 .buttons = {
209 { .name = "reset", .gpio = 1 << 6 },
210 { .name = "ses", .gpio = 1 << 8 },
211 },
212 .leds = {
213 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
214 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
215 },
216 },
217 /* Asus */
218 [WLHDD] = {
219 .name = "ASUS WL-HDD",
220 .buttons = {
221 { .name = "reset", .gpio = 1 << 6 },
222 },
223 .leds = {
224 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
225 { .name = "usb", .gpio = 1 << 2, .polarity = NORMAL },
226 },
227 },
228 [WL300G] = {
229 .name = "ASUS WL-300g",
230 .buttons = {
231 { .name = "reset", .gpio = 1 << 6 },
232 },
233 .leds = {
234 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
235 },
236 },
237 [WL500G] = {
238 .name = "ASUS WL-500g",
239 .buttons = {
240 { .name = "reset", .gpio = 1 << 6 },
241 },
242 .leds = {
243 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
244 },
245 },
246 [WL500GD] = {
247 .name = "ASUS WL-500g Deluxe",
248 .buttons = {
249 { .name = "reset", .gpio = 1 << 6 },
250 },
251 .leds = {
252 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
253 },
254 },
255 [WL500GP] = {
256 .name = "ASUS WL-500g Premium",
257 .buttons = {
258 { .name = "reset", .gpio = 1 << 0 },
259 { .name = "ses", .gpio = 1 << 4 },
260 },
261 .leds = {
262 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
263 },
264 },
265 [WL500W] = {
266 .name = "ASUS WL-500W",
267 .buttons = {
268 { .name = "reset", .gpio = 1 << 6 },
269 { .name = "ses", .gpio = 1 << 7 },
270 },
271 .leds = {
272 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
273 },
274 },
275 [ASUS_4702] = {
276 .name = "ASUS (unknown, BCM4702)",
277 .buttons = {
278 { .name = "reset", .gpio = 1 << 6 },
279 },
280 .leds = {
281 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
282 },
283 },
284 [WL700GE] = {
285 .name = "ASUS WL-700gE",
286 .buttons = {
287 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
288 { .name = "ses", .gpio = 1 << 4 }, // on back, actual name ezsetup
289 { .name = "power", .gpio = 1 << 0 }, // on front
290 { .name = "copy", .gpio = 1 << 6 }, // on front
291 },
292 .leds = {
293 #if 0
294 // GPIO that controls power led also enables/disables some essential functions
295 // - power to HDD
296 // - switch leds
297 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL }, // actual name power
298 #endif
299 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
300 },
301 .platform_init = bcm4780_init,
302 },
303 /* Buffalo */
304 [WHR_G54S] = {
305 .name = "Buffalo WHR-G54S",
306 .buttons = {
307 { .name = "reset", .gpio = 1 << 4 },
308 { .name = "bridge", .gpio = 1 << 5 },
309 { .name = "ses", .gpio = 1 << 0 },
310 },
311 .leds = {
312 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
313 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
314 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
315 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
316 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
317 },
318 },
319 [WBR2_G54] = {
320 .name = "Buffalo WBR2-G54",
321 /* FIXME: verify */
322 .buttons = {
323 { .name = "reset", .gpio = 1 << 7 },
324 },
325 .leds = {
326 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
327 },
328 },
329 [WHR_HP_G54] = {
330 .name = "Buffalo WHR-HP-G54",
331 .buttons = {
332 { .name = "reset", .gpio = 1 << 4 },
333 { .name = "bridge", .gpio = 1 << 5 },
334 { .name = "ses", .gpio = 1 << 0 },
335 },
336 .leds = {
337 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
338 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
339 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
340 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
341 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
342 },
343 },
344 [WHR2_A54G54] = {
345 .name = "Buffalo WHR2-A54G54",
346 .buttons = {
347 { .name = "reset", .gpio = 1 << 4 },
348 },
349 .leds = {
350 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
351 },
352 },
353 [WLA2_G54L] = {
354 .name = "Buffalo WLA2-G54L",
355 /* FIXME: verify */
356 .buttons = {
357 { .name = "reset", .gpio = 1 << 7 },
358 },
359 .leds = {
360 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
361 },
362 },
363 [WZR_G300N] = {
364 .name = "Buffalo WZR-G300N",
365 .buttons = {
366 { .name = "reset", .gpio = 1 << 4 },
367 },
368 .leds = {
369 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
370 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
371 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
372 },
373 },
374 [WZR_RS_G54] = {
375 .name = "Buffalo WZR-RS-G54",
376 .buttons = {
377 { .name = "ses", .gpio = 1 << 0 },
378 { .name = "reset", .gpio = 1 << 4 },
379 },
380 .leds = {
381 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
382 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
383 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
384 },
385 },
386 [WZR_RS_G54HP] = {
387 .name = "Buffalo WZR-RS-G54HP",
388 .buttons = {
389 { .name = "ses", .gpio = 1 << 0 },
390 { .name = "reset", .gpio = 1 << 4 },
391 },
392 .leds = {
393 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
394 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
395 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
396 },
397 },
398 [BUFFALO_UNKNOWN] = {
399 .name = "Buffalo (unknown)",
400 .buttons = {
401 { .name = "reset", .gpio = 1 << 7 },
402 },
403 .leds = {
404 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
405 },
406 },
407 [BUFFALO_UNKNOWN_4710] = {
408 .name = "Buffalo (unknown, BCM4710)",
409 .buttons = {
410 { .name = "reset", .gpio = 1 << 4 },
411 },
412 .leds = {
413 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
414 },
415 },
416 /* Siemens */
417 [SE505V1] = {
418 .name = "Siemens SE505 V1",
419 .buttons = {
420 /* No usable buttons */
421 },
422 .leds = {
423 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
424 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
425 },
426 },
427 [SE505V2] = {
428 .name = "Siemens SE505 V2",
429 .buttons = {
430 /* No usable buttons */
431 },
432 .leds = {
433 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
434 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
435 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
436 },
437 },
438 /* US Robotics */
439 [USR5461] = {
440 .name = "U.S. Robotics USR5461",
441 .buttons = {
442 /* No usable buttons */
443 },
444 .leds = {
445 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
446 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
447 },
448 },
449 /* Dell */
450 [TM2300] = {
451 .name = "Dell TrueMobile 2300",
452 .buttons = {
453 { .name = "reset", .gpio = 1 << 0 },
454 },
455 .leds = {
456 { .name = "wlan", .gpio = 1 << 6, .polarity = REVERSE },
457 { .name = "power", .gpio = 1 << 7, .polarity = REVERSE },
458 },
459 },
460 /* Motorola */
461 [WE800G] = {
462 .name = "Motorola WE800G",
463 .buttons = {
464 { .name = "reset", .gpio = 1 << 0 },
465 },
466 .leds = {
467 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
468 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
469 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
470 },
471 },
472 [WR850GV1] = {
473 .name = "Motorola WR850G V1",
474 .buttons = {
475 { .name = "reset", .gpio = 1 << 0 },
476 },
477 .leds = {
478 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
479 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
480 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
481 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
482 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
483 },
484 },
485 [WR850GV2V3] = {
486 .name = "Motorola WR850G V2/V3",
487 .buttons = {
488 { .name = "reset", .gpio = 1 << 5 },
489 },
490 .leds = {
491 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
492 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
493 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
494 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
495 },
496 },
497 /* Belkin */
498 [BELKIN_UNKNOWN] = {
499 .name = "Belkin (unknown)",
500 /* FIXME: verify & add detection */
501 .buttons = {
502 { .name = "reset", .gpio = 1 << 7 },
503 },
504 .leds = {
505 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
506 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
507 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
508 },
509 },
510 /* Netgear */
511 [WGT634U] = {
512 .name = "Netgear WGT634U",
513 .buttons = {
514 { .name = "reset", .gpio = 1 << 2 },
515 },
516 .leds = {
517 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL },
518 },
519 },
520 /* Trendware */
521 [TEW411BRPP] = {
522 .name = "Trendware TEW411BRP+",
523 .buttons = {
524 { /* No usable buttons */ },
525 },
526 .leds = {
527 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
528 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
529 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
530 },
531 },
532 /* SimpleTech */
533 [STI_NAS] = {
534 .name = "SimpleTech SimpleShare NAS",
535 .buttons = {
536 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
537 { .name = "power", .gpio = 1 << 0 }, // on back
538 },
539 .leds = {
540 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
541 },
542 .platform_init = bcm4780_init,
543 },
544 /* D-Link */
545 [DIR130] = {
546 .name = "D-Link DIR-130",
547 .buttons = {
548 { .name = "reset", .gpio = 1 << 3},
549 { .name = "reserved", .gpio = 1 << 7},
550 },
551 .leds = {
552 { .name = "diag", .gpio = 1 << 0},
553 { .name = "blue", .gpio = 1 << 6},
554 },
555 },
556 [DIR330] = {
557 .name = "D-Link DIR-330",
558 .buttons = {
559 { .name = "reset", .gpio = 1 << 3},
560 { .name = "reserved", .gpio = 1 << 7},
561 },
562 .leds = {
563 { .name = "diag", .gpio = 1 << 0},
564 { .name = "usb", .gpio = 1 << 4},
565 { .name = "blue", .gpio = 1 << 6},
566 },
567 },
568 };
569
570 static struct platform_t __init *platform_detect(void)
571 {
572 char *boardnum, *boardtype, *buf;
573
574 boardnum = getvar("boardnum");
575 boardtype = getvar("boardtype");
576
577 if (strcmp(getvar("nvram_type"), "cfe") == 0)
578 return &platforms[WGT634U];
579
580 if (strncmp(getvar("model_no"), "WL700",5) == 0)
581 return &platforms[WL700GE];
582
583 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
584 /* CFE based - newer hardware */
585 if (!strcmp(boardnum, "42")) { /* Linksys */
586 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
587 return &platforms[WRT350N];
588
589 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
590 return &platforms[WRT54G3G];
591
592 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
593 return &platforms[WRTSL54GS];
594
595 /* default to WRT54G */
596 return &platforms[WRT54G];
597 }
598
599 if (!strcmp(boardnum, "45")) { /* ASUS */
600 if (!strcmp(boardtype,"0x042f"))
601 return &platforms[WL500GP];
602 else if (!strcmp(boardtype,"0x0472"))
603 return &platforms[WL500W];
604 else
605 return &platforms[WL500GD];
606 }
607
608 if (!strcmp(boardnum, "10496"))
609 return &platforms[USR5461];
610
611 /* D-Link */
612 if (!strcmp(getvar("model_name"), "DIR-130"))
613 return &platforms[DIR130];
614 if (!strcmp(getvar("model_name"), "DIR-330"))
615 return &platforms[DIR330];
616
617 } else { /* PMON based - old stuff */
618
619 /* Dell TrueMobile 2300 */
620 if (!strcmp(getvar("ModelId"),"WX-5565"))
621 return &platforms[TM2300];
622
623 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
624 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
625 if (!strncmp(getvar("ModelId"),"WE800G", 6))
626 return &platforms[WE800G];
627 else
628 return &platforms[WR850GV1];
629 }
630 if (!strncmp(boardtype, "bcm94710dev", 11)) {
631 if (!strcmp(boardnum, "42"))
632 return &platforms[WRT54GV1];
633 if (simple_strtoul(boardnum, NULL, 0) == 2)
634 return &platforms[WAP54GV1];
635 }
636 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
637 return &platforms[WL500G];
638 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
639 /* Either WL-300g or WL-HDD, do more extensive checks */
640 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
641 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
642 return &platforms[WLHDD];
643 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
644 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
645 return &platforms[WL300G];
646 }
647
648 /* unknown asus stuff, probably bcm4702 */
649 if (!strncmp(boardnum, "asusX", 5))
650 return &platforms[ASUS_4702];
651 }
652
653 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
654 /* Buffalo hardware, check id for specific hardware matches */
655 if (!strcmp(buf, "29bb0332"))
656 return &platforms[WBR2_G54];
657 if (!strcmp(buf, "29129"))
658 return &platforms[WLA2_G54L];
659 if (!strcmp(buf, "30189"))
660 return &platforms[WHR_HP_G54];
661 if (!strcmp(buf, "30182"))
662 return &platforms[WHR_G54S];
663 if (!strcmp(buf, "290441dd"))
664 return &platforms[WHR2_A54G54];
665 if (!strcmp(buf, "31120"))
666 return &platforms[WZR_G300N];
667 if (!strcmp(buf, "30083"))
668 return &platforms[WZR_RS_G54];
669 if (!strcmp(buf, "30103"))
670 return &platforms[WZR_RS_G54HP];
671 }
672
673 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
674 if (!strncmp(boardtype, "bcm94710ap", 10))
675 return &platforms[BUFFALO_UNKNOWN_4710];
676 else
677 return &platforms[BUFFALO_UNKNOWN];
678 }
679
680 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
681 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
682
683 return &platforms[WR850GV2V3];
684 }
685
686 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
687 return &platforms[TEW411BRPP];
688 }
689
690 if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
691 return &platforms[STI_NAS];
692
693 /* not found */
694 return NULL;
695 }
696
697 static void register_buttons(struct button_t *b)
698 {
699 for (; b->name; b++)
700 platform.button_mask |= b->gpio;
701
702 platform.button_mask &= ~gpiomask;
703
704 gpio_outen(platform.button_mask, 0);
705 gpio_control(platform.button_mask, 0);
706 platform.button_polarity = gpio_in() & platform.button_mask;
707 gpio_intpolarity(platform.button_mask, platform.button_polarity);
708 gpio_intmask(platform.button_mask, platform.button_mask);
709
710 gpio_set_irqenable(1, button_handler);
711 }
712
713 static void unregister_buttons(struct button_t *b)
714 {
715 gpio_intmask(platform.button_mask, 0);
716
717 gpio_set_irqenable(0, button_handler);
718 }
719
720
721 #ifndef LINUX_2_4
722 static void add_msg(struct event_t *event, char *msg, int argv)
723 {
724 char *s;
725
726 if (argv)
727 return;
728
729 s = skb_put(event->skb, strlen(msg) + 1);
730 strcpy(s, msg);
731 }
732
733 static void hotplug_button(struct work_struct *work)
734 {
735 struct event_t *event = container_of(work, struct event_t, wq);
736 char *s;
737
738 if (!uevent_sock)
739 return;
740
741 event->skb = alloc_skb(2048, GFP_KERNEL);
742
743 s = skb_put(event->skb, strlen(event->action) + 2);
744 sprintf(s, "%s@", event->action);
745 fill_event(event);
746
747 NETLINK_CB(event->skb).dst_group = 1;
748 netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
749
750 kfree(event);
751 }
752
753 #else /* !LINUX_2_4 */
754 static inline char *kzalloc(unsigned int size, unsigned int gfp)
755 {
756 char *p;
757
758 p = kmalloc(size, gfp);
759 if (p == NULL)
760 return NULL;
761
762 memset(p, 0, size);
763
764 return p;
765 }
766
767 static void add_msg(struct event_t *event, char *msg, int argv)
768 {
769 if (argv)
770 event->argv[event->anr++] = event->scratch;
771 else
772 event->envp[event->enr++] = event->scratch;
773
774 event->scratch += sprintf(event->scratch, "%s", msg) + 1;
775 }
776
777 static void hotplug_button(struct event_t *event)
778 {
779 char *scratch = kzalloc(256, GFP_KERNEL);
780 event->scratch = scratch;
781
782 add_msg(event, hotplug_path, 1);
783 add_msg(event, "button", 1);
784 fill_event(event);
785 call_usermodehelper (event->argv[0], event->argv, event->envp);
786 kfree(scratch);
787 kfree(event);
788 }
789 #endif /* !LINUX_2_4 */
790
791 static int fill_event (struct event_t *event)
792 {
793 static char buf[128];
794
795 add_msg(event, "HOME=/", 0);
796 add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
797 add_msg(event, "SUBSYSTEM=button", 0);
798 snprintf(buf, 128, "ACTION=%s", event->action);
799 add_msg(event, buf, 0);
800 snprintf(buf, 128, "BUTTON=%s", event->name);
801 add_msg(event, buf, 0);
802 snprintf(buf, 128, "SEEN=%ld", event->seen);
803 add_msg(event, buf, 0);
804 #ifndef LINUX_2_4
805 snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
806 add_msg(event, buf, 0);
807 #endif
808
809 return 0;
810 }
811
812
813 #ifndef LINUX_2_4
814 static irqreturn_t button_handler(int irq, void *dev_id)
815 #else
816 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
817 #endif
818 {
819 struct button_t *b;
820 u32 in, changed;
821
822 in = gpio_in() & platform.button_mask;
823 gpio_intpolarity(platform.button_mask, in);
824 changed = platform.button_polarity ^ in;
825 platform.button_polarity = in;
826
827 changed &= ~gpio_outen(0, 0);
828
829 for (b = platform.buttons; b->name; b++) {
830 struct event_t *event;
831
832 if (!(b->gpio & changed)) continue;
833
834 b->pressed ^= 1;
835
836 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
837 event->seen = (jiffies - b->seen)/HZ;
838 event->name = b->name;
839 event->action = b->pressed ? "pressed" : "released";
840 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
841 INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
842 #else
843 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
844 #endif
845 schedule_work(&event->wq);
846 }
847
848 b->seen = jiffies;
849 }
850 return IRQ_HANDLED;
851 }
852
853 static void register_leds(struct led_t *l)
854 {
855 struct proc_dir_entry *p;
856 u32 mask = 0;
857 u32 val = 0;
858
859 leds = proc_mkdir("led", diag);
860 if (!leds)
861 return;
862
863 for(; l->name; l++) {
864 if (l->gpio & gpiomask)
865 continue;
866
867 if (l->gpio & GPIO_TYPE_EXTIF) {
868 l->state = 0;
869 set_led_extif(l);
870 } else {
871 mask |= l->gpio;
872 val |= (l->polarity == NORMAL)?0:l->gpio;
873 }
874
875 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
876 l->proc.type = PROC_LED;
877 l->proc.ptr = l;
878 p->data = (void *) &l->proc;
879 p->proc_fops = &diag_proc_fops;
880 }
881 }
882
883 gpio_outen(mask, mask);
884 gpio_control(mask, 0);
885 gpio_out(mask, val);
886 }
887
888 static void unregister_leds(struct led_t *l)
889 {
890 for(; l->name; l++)
891 remove_proc_entry(l->name, leds);
892
893 remove_proc_entry("led", diag);
894 }
895
896 static void set_led_extif(struct led_t *led)
897 {
898 gpio_set_extif(led->gpio, led->state);
899 }
900
901 static void led_flash(unsigned long dummy) {
902 struct led_t *l;
903 u32 mask = 0;
904 u8 extif_blink = 0;
905
906 for (l = platform.leds; l->name; l++) {
907 if (l->flash) {
908 if (l->gpio & GPIO_TYPE_EXTIF) {
909 extif_blink = 1;
910 l->state = !l->state;
911 set_led_extif(l);
912 } else {
913 mask |= l->gpio;
914 }
915 }
916 }
917
918 mask &= ~gpiomask;
919 if (mask) {
920 u32 val = ~gpio_in();
921
922 gpio_outen(mask, mask);
923 gpio_control(mask, 0);
924 gpio_out(mask, val);
925 }
926 if (mask || extif_blink) {
927 mod_timer(&led_timer, jiffies + FLASH_TIME);
928 }
929 }
930
931 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
932 {
933 #ifdef LINUX_2_4
934 struct inode *inode = file->f_dentry->d_inode;
935 struct proc_dir_entry *dent = inode->u.generic_ip;
936 #else
937 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
938 #endif
939 char *page;
940 int len = 0;
941
942 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
943 return -ENOBUFS;
944
945 if (dent->data != NULL) {
946 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
947 switch (handler->type) {
948 case PROC_LED: {
949 struct led_t * led = (struct led_t *) handler->ptr;
950 if (led->flash) {
951 len = sprintf(page, "f\n");
952 } else {
953 if (led->gpio & GPIO_TYPE_EXTIF) {
954 len = sprintf(page, "%d\n", led->state);
955 } else {
956 u32 in = (gpio_in() & led->gpio ? 1 : 0);
957 u8 p = (led->polarity == NORMAL ? 0 : 1);
958 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
959 }
960 }
961 break;
962 }
963 case PROC_MODEL:
964 len = sprintf(page, "%s\n", platform.name);
965 break;
966 case PROC_GPIOMASK:
967 len = sprintf(page, "0x%04x\n", gpiomask);
968 break;
969 }
970 }
971 len += 1;
972
973 if (*ppos < len) {
974 len = min_t(int, len - *ppos, count);
975 if (copy_to_user(buf, (page + *ppos), len)) {
976 kfree(page);
977 return -EFAULT;
978 }
979 *ppos += len;
980 } else {
981 len = 0;
982 }
983
984 kfree(page);
985 return len;
986 }
987
988
989 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
990 {
991 #ifdef LINUX_2_4
992 struct inode *inode = file->f_dentry->d_inode;
993 struct proc_dir_entry *dent = inode->u.generic_ip;
994 #else
995 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
996 #endif
997 char *page;
998 int ret = -EINVAL;
999
1000 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1001 return -ENOBUFS;
1002
1003 if (copy_from_user(page, buf, count)) {
1004 kfree(page);
1005 return -EINVAL;
1006 }
1007 page[count] = 0;
1008
1009 if (dent->data != NULL) {
1010 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1011 switch (handler->type) {
1012 case PROC_LED: {
1013 struct led_t *led = (struct led_t *) handler->ptr;
1014 int p = (led->polarity == NORMAL ? 0 : 1);
1015
1016 if (page[0] == 'f') {
1017 led->flash = 1;
1018 led_flash(0);
1019 } else {
1020 led->flash = 0;
1021 if (led->gpio & GPIO_TYPE_EXTIF) {
1022 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1023 set_led_extif(led);
1024 } else {
1025 gpio_outen(led->gpio, led->gpio);
1026 gpio_control(led->gpio, 0);
1027 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1028 }
1029 }
1030 break;
1031 }
1032 case PROC_GPIOMASK:
1033 gpiomask = simple_strtoul(page, NULL, 0);
1034
1035 if (platform.buttons) {
1036 unregister_buttons(platform.buttons);
1037 register_buttons(platform.buttons);
1038 }
1039
1040 if (platform.leds) {
1041 unregister_leds(platform.leds);
1042 register_leds(platform.leds);
1043 }
1044 break;
1045 }
1046 ret = count;
1047 }
1048
1049 kfree(page);
1050 return ret;
1051 }
1052
1053 static int __init diag_init(void)
1054 {
1055 static struct proc_dir_entry *p;
1056 static struct platform_t *detected;
1057
1058 detected = platform_detect();
1059 if (!detected) {
1060 printk(MODULE_NAME ": Router model not detected.\n");
1061 return -ENODEV;
1062 }
1063 memcpy(&platform, detected, sizeof(struct platform_t));
1064
1065 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1066 if (platform.platform_init != NULL) {
1067 platform.platform_init();
1068 }
1069
1070 if (!(diag = proc_mkdir("diag", NULL))) {
1071 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1072 return -EINVAL;
1073 }
1074
1075 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1076 p->data = (void *) &proc_model;
1077 p->proc_fops = &diag_proc_fops;
1078 }
1079
1080 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1081 p->data = (void *) &proc_gpiomask;
1082 p->proc_fops = &diag_proc_fops;
1083 }
1084
1085 if (platform.buttons)
1086 register_buttons(platform.buttons);
1087
1088 if (platform.leds)
1089 register_leds(platform.leds);
1090
1091 return 0;
1092 }
1093
1094 static void __exit diag_exit(void)
1095 {
1096 del_timer(&led_timer);
1097
1098 if (platform.buttons)
1099 unregister_buttons(platform.buttons);
1100
1101 if (platform.leds)
1102 unregister_leds(platform.leds);
1103
1104 remove_proc_entry("model", diag);
1105 remove_proc_entry("gpiomask", diag);
1106 remove_proc_entry("diag", NULL);
1107 }
1108
1109 module_init(diag_init);
1110 module_exit(diag_exit);
1111
1112 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1113 MODULE_LICENSE("GPL");
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