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add SimpleTech SimpleShare NAS diag support (untested; based on patch from #1352)
[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 WL500W,
66 ASUS_4702,
67 WL700GE,
68
69 /* Buffalo */
70 WBR2_G54,
71 WHR_G54S,
72 WHR_HP_G54,
73 WHR2_A54G54,
74 WLA2_G54L,
75 WZR_G300N,
76 WZR_RS_G54,
77 WZR_RS_G54HP,
78 BUFFALO_UNKNOWN,
79 BUFFALO_UNKNOWN_4710,
80
81 /* Siemens */
82 SE505V1,
83 SE505V2,
84
85 /* US Robotics */
86 USR5461,
87
88 /* Dell */
89 TM2300,
90
91 /* Motorola */
92 WE800G,
93 WR850GV1,
94 WR850GV2V3,
95
96 /* Belkin */
97 BELKIN_UNKNOWN,
98
99 /* Netgear */
100 WGT634U,
101
102 /* Trendware */
103 TEW411BRPP,
104
105 /* SimpleTech */
106 STI_NAS,
107 };
108
109 static void __init bcm4780_init(void) {
110 int pin = 1 << 3;
111
112 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
113 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
114 gpio_outen(pin, pin);
115 gpio_control(pin, 0);
116 gpio_out(pin, pin);
117
118 /* Wait 5s, so the HDD can spin up */
119 set_current_state(TASK_INTERRUPTIBLE);
120 schedule_timeout(HZ * 5);
121 }
122
123 static struct platform_t __initdata platforms[] = {
124 /* Linksys */
125 [WAP54GV1] = {
126 .name = "Linksys WAP54G V1",
127 .buttons = {
128 { .name = "reset", .gpio = 1 << 0 },
129 },
130 .leds = {
131 { .name = "diag", .gpio = 1 << 3 },
132 { .name = "wlan", .gpio = 1 << 4 },
133 },
134 },
135 [WAP54GV3] = {
136 .name = "Linksys WAP54G V3",
137 .buttons = {
138 /* FIXME: verify this */
139 { .name = "reset", .gpio = 1 << 7 },
140 { .name = "ses", .gpio = 1 << 0 },
141 },
142 .leds = {
143 /* FIXME: diag? */
144 { .name = "ses", .gpio = 1 << 1 },
145 },
146 },
147 [WRT54GV1] = {
148 .name = "Linksys WRT54G V1.x",
149 .buttons = {
150 { .name = "reset", .gpio = 1 << 6 },
151 },
152 .leds = {
153 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
154 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
155 },
156 },
157 [WRT54G] = {
158 .name = "Linksys WRT54G/GS/GL",
159 .buttons = {
160 { .name = "reset", .gpio = 1 << 6 },
161 { .name = "ses", .gpio = 1 << 4 },
162 },
163 .leds = {
164 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
165 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
166 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
167 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
168 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
169 },
170 },
171 [WRTSL54GS] = {
172 .name = "Linksys WRTSL54GS",
173 .buttons = {
174 { .name = "reset", .gpio = 1 << 6 },
175 { .name = "ses", .gpio = 1 << 4 },
176 },
177 .leds = {
178 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
179 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
180 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
181 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
182 },
183 },
184 [WRT54G3G] = {
185 .name = "Linksys WRT54G3G",
186 .buttons = {
187 { .name = "reset", .gpio = 1 << 6 },
188 { .name = "3g", .gpio = 1 << 4 },
189 },
190 .leds = {
191 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
192 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
193 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
194 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
195 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
196 },
197 },
198 [WRT350N] = {
199 .name = "Linksys WRT350N",
200 .buttons = {
201 { .name = "reset", .gpio = 1 << 6 },
202 { .name = "ses", .gpio = 1 << 8 },
203 },
204 .leds = {
205 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
206 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
207 },
208 },
209 /* Asus */
210 [WLHDD] = {
211 .name = "ASUS WL-HDD",
212 .buttons = {
213 { .name = "reset", .gpio = 1 << 6 },
214 },
215 .leds = {
216 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
217 { .name = "usb", .gpio = 1 << 2, .polarity = NORMAL },
218 },
219 },
220 [WL300G] = {
221 .name = "ASUS WL-300g",
222 .buttons = {
223 { .name = "reset", .gpio = 1 << 6 },
224 },
225 .leds = {
226 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
227 },
228 },
229 [WL500G] = {
230 .name = "ASUS WL-500g",
231 .buttons = {
232 { .name = "reset", .gpio = 1 << 6 },
233 },
234 .leds = {
235 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
236 },
237 },
238 [WL500GD] = {
239 .name = "ASUS WL-500g Deluxe",
240 .buttons = {
241 { .name = "reset", .gpio = 1 << 6 },
242 },
243 .leds = {
244 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
245 },
246 },
247 [WL500GP] = {
248 .name = "ASUS WL-500g Premium",
249 .buttons = {
250 { .name = "reset", .gpio = 1 << 0 },
251 { .name = "ses", .gpio = 1 << 4 },
252 },
253 .leds = {
254 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
255 },
256 },
257 [WL500W] = {
258 .name = "ASUS WL-500W",
259 .buttons = {
260 { .name = "reset", .gpio = 1 << 6 },
261 { .name = "ses", .gpio = 1 << 7 },
262 },
263 .leds = {
264 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
265 },
266 },
267 [ASUS_4702] = {
268 .name = "ASUS (unknown, BCM4702)",
269 .buttons = {
270 { .name = "reset", .gpio = 1 << 6 },
271 },
272 .leds = {
273 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
274 },
275 },
276 [WL700GE] = {
277 .name = "ASUS WL-700gE",
278 .buttons = {
279 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
280 { .name = "ses", .gpio = 1 << 4 }, // on back, actual name ezsetup
281 { .name = "power", .gpio = 1 << 0 }, // on front
282 { .name = "copy", .gpio = 1 << 6 }, // on front
283 },
284 .leds = {
285 #if 0
286 // GPIO that controls power led also enables/disables some essential functions
287 // - power to HDD
288 // - switch leds
289 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL }, // actual name power
290 #endif
291 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
292 },
293 .platform_init = bcm4780_init,
294 },
295 /* Buffalo */
296 [WHR_G54S] = {
297 .name = "Buffalo WHR-G54S",
298 .buttons = {
299 { .name = "reset", .gpio = 1 << 4 },
300 { .name = "bridge", .gpio = 1 << 5 },
301 { .name = "ses", .gpio = 1 << 0 },
302 },
303 .leds = {
304 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
305 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
306 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
307 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
308 },
309 },
310 [WBR2_G54] = {
311 .name = "Buffalo WBR2-G54",
312 /* FIXME: verify */
313 .buttons = {
314 { .name = "reset", .gpio = 1 << 7 },
315 },
316 .leds = {
317 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
318 },
319 },
320 [WHR_HP_G54] = {
321 .name = "Buffalo WHR-HP-G54",
322 .buttons = {
323 { .name = "reset", .gpio = 1 << 4 },
324 { .name = "bridge", .gpio = 1 << 5 },
325 { .name = "ses", .gpio = 1 << 0 },
326 },
327 .leds = {
328 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
329 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
330 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
331 },
332 },
333 [WHR2_A54G54] = {
334 .name = "Buffalo WHR2-A54G54",
335 .buttons = {
336 { .name = "reset", .gpio = 1 << 4 },
337 },
338 .leds = {
339 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
340 },
341 },
342 [WLA2_G54L] = {
343 .name = "Buffalo WLA2-G54L",
344 /* FIXME: verify */
345 .buttons = {
346 { .name = "reset", .gpio = 1 << 7 },
347 },
348 .leds = {
349 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
350 },
351 },
352 [WZR_G300N] = {
353 .name = "Buffalo WZR-G300N",
354 .buttons = {
355 { .name = "reset", .gpio = 1 << 4 },
356 },
357 .leds = {
358 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
359 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
360 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
361 },
362 },
363 [WZR_RS_G54] = {
364 .name = "Buffalo WZR-RS-G54",
365 .buttons = {
366 { .name = "ses", .gpio = 1 << 0 },
367 { .name = "reset", .gpio = 1 << 4 },
368 },
369 .leds = {
370 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
371 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
372 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
373 },
374 },
375 [WZR_RS_G54HP] = {
376 .name = "Buffalo WZR-RS-G54HP",
377 .buttons = {
378 { .name = "ses", .gpio = 1 << 0 },
379 { .name = "reset", .gpio = 1 << 4 },
380 },
381 .leds = {
382 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
383 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
384 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
385 },
386 },
387 [BUFFALO_UNKNOWN] = {
388 .name = "Buffalo (unknown)",
389 .buttons = {
390 { .name = "reset", .gpio = 1 << 7 },
391 },
392 .leds = {
393 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
394 },
395 },
396 [BUFFALO_UNKNOWN_4710] = {
397 .name = "Buffalo (unknown, BCM4710)",
398 .buttons = {
399 { .name = "reset", .gpio = 1 << 4 },
400 },
401 .leds = {
402 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
403 },
404 },
405 /* Siemens */
406 [SE505V1] = {
407 .name = "Siemens SE505 V1",
408 .buttons = {
409 /* No usable buttons */
410 },
411 .leds = {
412 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
413 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
414 },
415 },
416 [SE505V2] = {
417 .name = "Siemens SE505 V2",
418 .buttons = {
419 /* No usable buttons */
420 },
421 .leds = {
422 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
423 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
424 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
425 },
426 },
427 /* US Robotics */
428 [USR5461] = {
429 .name = "U.S. Robotics USR5461",
430 .buttons = {
431 /* No usable buttons */
432 },
433 .leds = {
434 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
435 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
436 },
437 },
438 /* Dell */
439 [TM2300] = {
440 .name = "Dell TrueMobile 2300",
441 .buttons = {
442 { .name = "reset", .gpio = 1 << 0 },
443 },
444 .leds = {
445 { .name = "wlan", .gpio = 1 << 6, .polarity = REVERSE },
446 { .name = "power", .gpio = 1 << 7, .polarity = REVERSE },
447 },
448 },
449 /* Motorola */
450 [WE800G] = {
451 .name = "Motorola WE800G",
452 .buttons = {
453 { .name = "reset", .gpio = 1 << 0 },
454 },
455 .leds = {
456 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
457 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
458 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
459 },
460 },
461 [WR850GV1] = {
462 .name = "Motorola WR850G V1",
463 .buttons = {
464 { .name = "reset", .gpio = 1 << 0 },
465 },
466 .leds = {
467 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
468 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
469 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
470 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
471 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
472 },
473 },
474 [WR850GV2V3] = {
475 .name = "Motorola WR850G V2/V3",
476 .buttons = {
477 { .name = "reset", .gpio = 1 << 5 },
478 },
479 .leds = {
480 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
481 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
482 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
483 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
484 },
485 },
486 /* Belkin */
487 [BELKIN_UNKNOWN] = {
488 .name = "Belkin (unknown)",
489 /* FIXME: verify & add detection */
490 .buttons = {
491 { .name = "reset", .gpio = 1 << 7 },
492 },
493 .leds = {
494 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
495 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
496 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
497 },
498 },
499 /* Netgear */
500 [WGT634U] = {
501 .name = "Netgear WGT634U",
502 .buttons = {
503 { .name = "reset", .gpio = 1 << 2 },
504 },
505 .leds = {
506 { .name = "power", .gpio = 1 << 3, .polarity = REVERSE },
507 },
508 },
509 /* Trendware */
510 [TEW411BRPP] = {
511 .name = "Trendware TEW411BRP+",
512 .buttons = {
513 { /* No usable buttons */ },
514 },
515 .leds = {
516 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
517 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
518 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
519 },
520 },
521 /* SimpleTech */
522 [STI_NAS] = {
523 .name = "SimpleTech SimpleShare NAS",
524 .buttons = {
525 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
526 { .name = "power", .gpio = 1 << 0 }, // on back
527 },
528 .leds = {
529 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
530 },
531 .platform_init = bcm4780_init,
532 },
533 };
534
535 static struct platform_t __init *platform_detect(void)
536 {
537 char *boardnum, *boardtype, *buf;
538
539 boardnum = getvar("boardnum");
540 boardtype = getvar("boardtype");
541
542 if (strncmp(getvar("model_no"), "WL700",5) == 0) {
543 return &platforms[WL700GE]; }
544
545 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
546 /* CFE based - newer hardware */
547 if (!strcmp(boardnum, "42")) { /* Linksys */
548 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
549 return &platforms[WRT350N];
550
551 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
552 return &platforms[WRT54G3G];
553
554 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
555 return &platforms[WRTSL54GS];
556
557 /* default to WRT54G */
558 return &platforms[WRT54G];
559 }
560
561 if (!strcmp(boardnum, "45")) { /* ASUS */
562 if (!strcmp(boardtype,"0x042f"))
563 return &platforms[WL500GP];
564 else if (!strcmp(boardtype,"0x0472"))
565 return &platforms[WL500W];
566 else
567 return &platforms[WL500GD];
568 }
569
570 if (!strcmp(boardnum, "10496"))
571 return &platforms[USR5461];
572 } else { /* PMON based - old stuff */
573
574 /* Dell TrueMobile 2300 */
575 if (!strcmp(getvar("ModelId"),"WX-5565"))
576 return &platforms[TM2300];
577
578 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
579 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
580 if (!strncmp(getvar("ModelId"),"WE800G", 6))
581 return &platforms[WE800G];
582 else
583 return &platforms[WR850GV1];
584 }
585 if (!strncmp(boardtype, "bcm94710dev", 11)) {
586 if (!strcmp(boardnum, "42"))
587 return &platforms[WRT54GV1];
588 if (simple_strtoul(boardnum, NULL, 0) == 2)
589 return &platforms[WAP54GV1];
590 }
591 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
592 return &platforms[WL500G];
593 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
594 /* Either WL-300g or WL-HDD, do more extensive checks */
595 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
596 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
597 return &platforms[WLHDD];
598 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
599 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
600 return &platforms[WL300G];
601 }
602
603 /* unknown asus stuff, probably bcm4702 */
604 if (!strncmp(boardnum, "asusX", 5))
605 return &platforms[ASUS_4702];
606 }
607
608 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
609 /* Buffalo hardware, check id for specific hardware matches */
610 if (!strcmp(buf, "29bb0332"))
611 return &platforms[WBR2_G54];
612 if (!strcmp(buf, "29129"))
613 return &platforms[WLA2_G54L];
614 if (!strcmp(buf, "30189"))
615 return &platforms[WHR_HP_G54];
616 if (!strcmp(buf, "30182"))
617 return &platforms[WHR_G54S];
618 if (!strcmp(buf, "290441dd"))
619 return &platforms[WHR2_A54G54];
620 if (!strcmp(buf, "31120"))
621 return &platforms[WZR_G300N];
622 if (!strcmp(buf, "30083"))
623 return &platforms[WZR_RS_G54];
624 if (!strcmp(buf, "30103"))
625 return &platforms[WZR_RS_G54HP];
626 }
627
628 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
629 if (!strncmp(boardtype, "bcm94710ap", 10))
630 return &platforms[BUFFALO_UNKNOWN_4710];
631 else
632 return &platforms[BUFFALO_UNKNOWN];
633 }
634
635 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
636 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
637
638 return &platforms[WR850GV2V3];
639 }
640
641 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
642 return &platforms[TEW411BRPP];
643 }
644
645 if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
646 return &platforms[STI_NAS];
647
648 /* not found */
649 return NULL;
650 }
651
652 static void register_buttons(struct button_t *b)
653 {
654 for (; b->name; b++)
655 platform.button_mask |= b->gpio;
656
657 platform.button_mask &= ~gpiomask;
658
659 gpio_outen(platform.button_mask, 0);
660 gpio_control(platform.button_mask, 0);
661 platform.button_polarity = gpio_in() & platform.button_mask;
662 gpio_intpolarity(platform.button_mask, platform.button_polarity);
663 gpio_intmask(platform.button_mask, platform.button_mask);
664
665 gpio_set_irqenable(1, button_handler);
666 }
667
668 static void unregister_buttons(struct button_t *b)
669 {
670 gpio_intmask(platform.button_mask, 0);
671
672 gpio_set_irqenable(0, button_handler);
673 }
674
675 static void hotplug_button(struct event_t *event)
676 {
677 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
678 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
679 #else
680 call_usermodehelper (event->argv[0], event->argv, event->envp);
681 #endif
682 kfree(event);
683 }
684
685 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
686 {
687 struct button_t *b;
688 u32 in, changed;
689
690 in = gpio_in() & platform.button_mask;
691 gpio_intpolarity(platform.button_mask, in);
692 changed = platform.button_polarity ^ in;
693 platform.button_polarity = in;
694
695 changed &= ~gpio_outen(0, 0);
696
697 for (b = platform.buttons; b->name; b++) {
698 struct event_t *event;
699
700 if (!(b->gpio & changed)) continue;
701
702 b->pressed ^= 1;
703
704 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
705 int i;
706 char *scratch = event->buf;
707
708 i = 0;
709 event->argv[i++] = hotplug_path;
710 event->argv[i++] = "button";
711 event->argv[i] = 0;
712
713 i = 0;
714 event->envp[i++] = "HOME=/";
715 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
716 event->envp[i++] = scratch;
717 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
718 event->envp[i++] = scratch;
719 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
720 event->envp[i++] = scratch;
721 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
722 event->envp[i] = 0;
723
724 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
725 schedule_work(&event->wq);
726 }
727
728 b->seen = jiffies;
729 }
730 return IRQ_HANDLED;
731 }
732
733 static void register_leds(struct led_t *l)
734 {
735 struct proc_dir_entry *p;
736 u32 mask = 0;
737 u32 val = 0;
738
739 leds = proc_mkdir("led", diag);
740 if (!leds)
741 return;
742
743 for(; l->name; l++) {
744 if (l->gpio & gpiomask)
745 continue;
746
747 if (l->gpio & GPIO_TYPE_EXTIF) {
748 l->state = 0;
749 set_led_extif(l);
750 } else {
751 mask |= l->gpio;
752 val |= (l->polarity == NORMAL)?0:l->gpio;
753 }
754
755 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
756 l->proc.type = PROC_LED;
757 l->proc.ptr = l;
758 p->data = (void *) &l->proc;
759 p->proc_fops = &diag_proc_fops;
760 }
761 }
762
763 gpio_outen(mask, mask);
764 gpio_control(mask, 0);
765 gpio_out(mask, val);
766 }
767
768 static void unregister_leds(struct led_t *l)
769 {
770 for(; l->name; l++)
771 remove_proc_entry(l->name, leds);
772
773 remove_proc_entry("led", diag);
774 }
775
776 static void set_led_extif(struct led_t *led)
777 {
778 gpio_set_extif(led->gpio, led->state);
779 }
780
781 static void led_flash(unsigned long dummy) {
782 struct led_t *l;
783 u32 mask = 0;
784 u8 extif_blink = 0;
785
786 for (l = platform.leds; l->name; l++) {
787 if (l->flash) {
788 if (l->gpio & GPIO_TYPE_EXTIF) {
789 extif_blink = 1;
790 l->state = !l->state;
791 set_led_extif(l);
792 } else {
793 mask |= l->gpio;
794 }
795 }
796 }
797
798 mask &= ~gpiomask;
799 if (mask) {
800 u32 val = ~gpio_in();
801
802 gpio_outen(mask, mask);
803 gpio_control(mask, 0);
804 gpio_out(mask, val);
805 }
806 if (mask || extif_blink) {
807 mod_timer(&led_timer, jiffies + FLASH_TIME);
808 }
809 }
810
811 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
812 {
813 #ifdef LINUX_2_4
814 struct inode *inode = file->f_dentry->d_inode;
815 struct proc_dir_entry *dent = inode->u.generic_ip;
816 #else
817 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
818 #endif
819 char *page;
820 int len = 0;
821
822 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
823 return -ENOBUFS;
824
825 if (dent->data != NULL) {
826 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
827 switch (handler->type) {
828 case PROC_LED: {
829 struct led_t * led = (struct led_t *) handler->ptr;
830 if (led->flash) {
831 len = sprintf(page, "f\n");
832 } else {
833 if (led->gpio & GPIO_TYPE_EXTIF) {
834 len = sprintf(page, "%d\n", led->state);
835 } else {
836 u32 in = (gpio_in() & led->gpio ? 1 : 0);
837 u8 p = (led->polarity == NORMAL ? 0 : 1);
838 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
839 }
840 }
841 break;
842 }
843 case PROC_MODEL:
844 len = sprintf(page, "%s\n", platform.name);
845 break;
846 case PROC_GPIOMASK:
847 len = sprintf(page, "0x%04x\n", gpiomask);
848 break;
849 }
850 }
851 len += 1;
852
853 if (*ppos < len) {
854 len = min_t(int, len - *ppos, count);
855 if (copy_to_user(buf, (page + *ppos), len)) {
856 kfree(page);
857 return -EFAULT;
858 }
859 *ppos += len;
860 } else {
861 len = 0;
862 }
863
864 return len;
865 }
866
867
868 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
869 {
870 #ifdef LINUX_2_4
871 struct inode *inode = file->f_dentry->d_inode;
872 struct proc_dir_entry *dent = inode->u.generic_ip;
873 #else
874 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
875 #endif
876 char *page;
877 int ret = -EINVAL;
878
879 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
880 return -ENOBUFS;
881
882 if (copy_from_user(page, buf, count)) {
883 kfree(page);
884 return -EINVAL;
885 }
886 page[count] = 0;
887
888 if (dent->data != NULL) {
889 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
890 switch (handler->type) {
891 case PROC_LED: {
892 struct led_t *led = (struct led_t *) handler->ptr;
893 int p = (led->polarity == NORMAL ? 0 : 1);
894
895 if (page[0] == 'f') {
896 led->flash = 1;
897 led_flash(0);
898 } else {
899 led->flash = 0;
900 if (led->gpio & GPIO_TYPE_EXTIF) {
901 led->state = p ^ ((page[0] == '1') ? 1 : 0);
902 set_led_extif(led);
903 } else {
904 gpio_outen(led->gpio, led->gpio);
905 gpio_control(led->gpio, 0);
906 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
907 }
908 }
909 break;
910 }
911 case PROC_GPIOMASK:
912 gpiomask = simple_strtoul(page, NULL, 0);
913
914 if (platform.buttons) {
915 unregister_buttons(platform.buttons);
916 register_buttons(platform.buttons);
917 }
918
919 if (platform.leds) {
920 unregister_leds(platform.leds);
921 register_leds(platform.leds);
922 }
923 break;
924 }
925 ret = count;
926 }
927
928 kfree(page);
929 return ret;
930 }
931
932 static int __init diag_init(void)
933 {
934 static struct proc_dir_entry *p;
935 static struct platform_t *detected;
936
937 detected = platform_detect();
938 if (!detected) {
939 printk(MODULE_NAME ": Router model not detected.\n");
940 return -ENODEV;
941 }
942 memcpy(&platform, detected, sizeof(struct platform_t));
943
944 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
945 if (platform.platform_init != NULL) {
946 platform.platform_init();
947 }
948
949 if (!(diag = proc_mkdir("diag", NULL))) {
950 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
951 return -EINVAL;
952 }
953
954 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
955 p->data = (void *) &proc_model;
956 p->proc_fops = &diag_proc_fops;
957 }
958
959 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
960 p->data = (void *) &proc_gpiomask;
961 p->proc_fops = &diag_proc_fops;
962 }
963
964 if (platform.buttons)
965 register_buttons(platform.buttons);
966
967 if (platform.leds)
968 register_leds(platform.leds);
969
970 return 0;
971 }
972
973 static void __exit diag_exit(void)
974 {
975
976 del_timer(&led_timer);
977
978 if (platform.buttons)
979 unregister_buttons(platform.buttons);
980
981 if (platform.leds)
982 unregister_leds(platform.leds);
983
984 remove_proc_entry("model", diag);
985 remove_proc_entry("gpiomask", diag);
986 remove_proc_entry("diag", NULL);
987 }
988
989 module_init(diag_init);
990 module_exit(diag_exit);
991
992 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
993 MODULE_LICENSE("GPL");
OpenWrt Source Repository