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92d660ed385d4f88777ff0442398c0e5a36bf549
[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 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_RS_G54,
74 WZR_RS_G54HP,
75 BUFFALO_UNKNOWN,
76 BUFFALO_UNKNOWN_4710,
77
78 /* Siemens */
79 SE505V1,
80 SE505V2,
81
82 /* US Robotics */
83 USR5461,
84
85 /* Dell */
86 TM2300,
87
88 /* Motorola */
89 WE800G,
90 WR850GV1,
91 WR850GV2V3,
92
93 /* Belkin */
94 BELKIN_UNKNOWN,
95
96 /* Netgear */
97 WGT634U,
98
99 /* Trendware */
100 TEW411BRPP,
101 };
102
103 static struct platform_t __initdata platforms[] = {
104 /* Linksys */
105 [WAP54GV1] = {
106 .name = "Linksys WAP54G V1",
107 .buttons = {
108 { .name = "reset", .gpio = 1 << 0 },
109 },
110 .leds = {
111 { .name = "diag", .gpio = 1 << 3 },
112 { .name = "wlan", .gpio = 1 << 4 },
113 },
114 },
115 [WAP54GV3] = {
116 .name = "Linksys WAP54G V3",
117 .buttons = {
118 /* FIXME: verify this */
119 { .name = "reset", .gpio = 1 << 7 },
120 { .name = "ses", .gpio = 1 << 0 },
121 },
122 .leds = {
123 /* FIXME: diag? */
124 { .name = "ses", .gpio = 1 << 1 },
125 },
126 },
127 [WRT54GV1] = {
128 .name = "Linksys WRT54G V1.x",
129 .buttons = {
130 { .name = "reset", .gpio = 1 << 6 },
131 },
132 .leds = {
133 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
134 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
135 },
136 },
137 [WRT54G] = {
138 .name = "Linksys WRT54G/GS/GL",
139 .buttons = {
140 { .name = "reset", .gpio = 1 << 6 },
141 { .name = "ses", .gpio = 1 << 4 },
142 },
143 .leds = {
144 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
145 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
146 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
147 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
148 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
149 },
150 },
151 [WRTSL54GS] = {
152 .name = "Linksys WRTSL54GS",
153 .buttons = {
154 { .name = "reset", .gpio = 1 << 6 },
155 { .name = "ses", .gpio = 1 << 4 },
156 },
157 .leds = {
158 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
159 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
160 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
161 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
162 },
163 },
164 [WRT54G3G] = {
165 .name = "Linksys WRT54G3G",
166 .buttons = {
167 { .name = "reset", .gpio = 1 << 6 },
168 { .name = "3g", .gpio = 1 << 4 },
169 },
170 .leds = {
171 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
172 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
173 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
174 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
175 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
176 },
177 },
178 [WRT350N] = {
179 .name = "Linksys WRT350N",
180 .buttons = {
181 { .name = "reset", .gpio = 1 << 6 },
182 { .name = "ses", .gpio = 1 << 8 },
183 },
184 .leds = {
185 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
186 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
187 },
188 },
189 /* Asus */
190 [WLHDD] = {
191 .name = "ASUS WL-HDD",
192 .buttons = {
193 { .name = "reset", .gpio = 1 << 6 },
194 },
195 .leds = {
196 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
197 },
198 },
199 [WL300G] = {
200 .name = "ASUS WL-300g",
201 .buttons = {
202 { .name = "reset", .gpio = 1 << 6 },
203 },
204 .leds = {
205 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
206 },
207 },
208 [WL500G] = {
209 .name = "ASUS WL-500g",
210 .buttons = {
211 { .name = "reset", .gpio = 1 << 6 },
212 },
213 .leds = {
214 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
215 },
216 },
217 [WL500GD] = {
218 .name = "ASUS WL-500g Deluxe",
219 .buttons = {
220 { .name = "reset", .gpio = 1 << 6 },
221 },
222 .leds = {
223 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
224 },
225 },
226 [WL500GP] = {
227 .name = "ASUS WL-500g Premium",
228 .buttons = {
229 { .name = "reset", .gpio = 1 << 0 },
230 { .name = "ses", .gpio = 1 << 4 },
231 },
232 .leds = {
233 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
234 },
235 },
236 [ASUS_4702] = {
237 .name = "ASUS (unknown, BCM4702)",
238 .buttons = {
239 { .name = "reset", .gpio = 1 << 6 },
240 },
241 .leds = {
242 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
243 },
244 },
245 /* Buffalo */
246 [WHR_G54S] = {
247 .name = "Buffalo WHR-G54S",
248 .buttons = {
249 { .name = "reset", .gpio = 1 << 4 },
250 { .name = "bridge", .gpio = 1 << 5 },
251 { .name = "ses", .gpio = 1 << 0 },
252 },
253 .leds = {
254 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
255 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
256 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
257 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
258 },
259 },
260 [WBR2_G54] = {
261 .name = "Buffalo WBR2-G54",
262 /* FIXME: verify */
263 .buttons = {
264 { .name = "reset", .gpio = 1 << 7 },
265 },
266 .leds = {
267 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
268 },
269 },
270 [WHR_HP_G54] = {
271 .name = "Buffalo WHR-HP-G54",
272 .buttons = {
273 { .name = "reset", .gpio = 1 << 4 },
274 { .name = "bridge", .gpio = 1 << 5 },
275 { .name = "ses", .gpio = 1 << 0 },
276 },
277 .leds = {
278 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
279 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
280 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
281 },
282 },
283 [WHR2_A54G54] = {
284 .name = "Buffalo WHR2-A54G54",
285 .buttons = {
286 { .name = "reset", .gpio = 1 << 4 },
287 },
288 .leds = {
289 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
290 },
291 },
292 [WLA2_G54L] = {
293 .name = "Buffalo WLA2-G54L",
294 /* FIXME: verify */
295 .buttons = {
296 { .name = "reset", .gpio = 1 << 7 },
297 },
298 .leds = {
299 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
300 },
301 },
302 [WZR_RS_G54] = {
303 .name = "Buffalo WZR-RS-G54",
304 .buttons = {
305 { .name = "ses", .gpio = 1 << 0 },
306 { .name = "reset", .gpio = 1 << 4 },
307 },
308 .leds = {
309 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
310 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
311 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
312 },
313 },
314 [WZR_RS_G54HP] = {
315 .name = "Buffalo WZR-RS-G54HP",
316 .buttons = {
317 { .name = "ses", .gpio = 1 << 0 },
318 { .name = "reset", .gpio = 1 << 4 },
319 },
320 .leds = {
321 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
322 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
323 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
324 },
325 },
326 [BUFFALO_UNKNOWN] = {
327 .name = "Buffalo (unknown)",
328 .buttons = {
329 { .name = "reset", .gpio = 1 << 7 },
330 },
331 .leds = {
332 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
333 },
334 },
335 [BUFFALO_UNKNOWN_4710] = {
336 .name = "Buffalo (unknown, BCM4710)",
337 .buttons = {
338 { .name = "reset", .gpio = 1 << 4 },
339 },
340 .leds = {
341 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
342 },
343 },
344 /* Siemens */
345 [SE505V1] = {
346 .name = "Siemens SE505 V1",
347 .buttons = {
348 /* No usable buttons */
349 },
350 .leds = {
351 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
352 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
353 },
354 },
355 [SE505V2] = {
356 .name = "Siemens SE505 V2",
357 .buttons = {
358 /* No usable buttons */
359 },
360 .leds = {
361 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
362 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
363 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
364 },
365 },
366 /* US Robotics */
367 [USR5461] = {
368 .name = "U.S. Robotics USR5461",
369 .buttons = {
370 /* No usable buttons */
371 },
372 .leds = {
373 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
374 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
375 },
376 },
377 /* Dell */
378 [TM2300] = {
379 .name = "Dell TrueMobile 2300",
380 .buttons = {
381 { .name = "reset", .gpio = 1 << 0 },
382 },
383 .leds = {
384 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
385 },
386 },
387 /* Motorola */
388 [WE800G] = {
389 .name = "Motorola WE800G",
390 .buttons = {
391 { .name = "reset", .gpio = 1 << 0 },
392 },
393 .leds = {
394 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
395 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
396 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
397 },
398 },
399 [WR850GV1] = {
400 .name = "Motorola WR850G V1",
401 .buttons = {
402 { .name = "reset", .gpio = 1 << 0 },
403 },
404 .leds = {
405 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
406 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
407 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
408 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
409 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
410 },
411 },
412 [WR850GV2V3] = {
413 .name = "Motorola WR850G V2/V3",
414 .buttons = {
415 { .name = "reset", .gpio = 1 << 5 },
416 },
417 .leds = {
418 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
419 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
420 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
421 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
422 },
423 },
424 /* Belkin */
425 [BELKIN_UNKNOWN] = {
426 .name = "Belkin (unknown)",
427 /* FIXME: verify & add detection */
428 .buttons = {
429 { .name = "reset", .gpio = 1 << 7 },
430 },
431 .leds = {
432 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
433 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
434 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
435 },
436 },
437 /* Netgear */
438 [WGT634U] = {
439 .name = "Netgear WGT634U",
440 .buttons = {
441 { .name = "reset", .gpio = 1 << 2 },
442 },
443 .leds = {
444 { .name = "power", .gpio = 1 << 3, .polarity = REVERSE },
445 },
446 },
447 /* Trendware */
448 [TEW411BRPP] = {
449 .name = "Trendware TEW411BRP+",
450 .buttons = {
451 { /* No usable buttons */ },
452 },
453 .leds = {
454 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
455 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
456 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
457 },
458 },
459 };
460
461 static struct platform_t __init *platform_detect(void)
462 {
463 char *boardnum, *boardtype, *buf;
464
465 boardnum = getvar("boardnum");
466 boardtype = getvar("boardtype");
467 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
468 /* CFE based - newer hardware */
469 if (!strcmp(boardnum, "42")) { /* Linksys */
470 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), 1))
471 return &platforms[WRT350N];
472
473 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
474 return &platforms[WRT54G3G];
475
476 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
477 return &platforms[WRTSL54GS];
478
479 /* default to WRT54G */
480 return &platforms[WRT54G];
481 }
482
483 if (!strcmp(boardnum, "45")) { /* ASUS */
484 if (!strcmp(boardtype,"0x042f"))
485 return &platforms[WL500GP];
486 else
487 return &platforms[WL500GD];
488 }
489
490 if (!strcmp(boardnum, "10496"))
491 return &platforms[USR5461];
492 } else { /* PMON based - old stuff */
493 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
494 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
495 if (!strncmp(getvar("ModelId"),"WE800G", 6))
496 return &platforms[WE800G];
497 else
498 return &platforms[WR850GV1];
499 }
500 if (!strncmp(boardtype, "bcm94710dev", 11)) {
501 if (!strcmp(boardnum, "42"))
502 return &platforms[WRT54GV1];
503 if (simple_strtoul(boardnum, NULL, 0) == 2)
504 return &platforms[WAP54GV1];
505 }
506 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
507 return &platforms[WL500G];
508 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
509 /* Either WL-300g or WL-HDD, do more extensive checks */
510 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
511 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
512 return &platforms[WLHDD];
513 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
514 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
515 return &platforms[WL300G];
516 }
517
518 /* unknown asus stuff, probably bcm4702 */
519 if (!strncmp(boardnum, "asusX", 5))
520 return &platforms[ASUS_4702];
521 }
522
523 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
524 /* Buffalo hardware, check id for specific hardware matches */
525 if (!strcmp(buf, "29bb0332"))
526 return &platforms[WBR2_G54];
527 if (!strcmp(buf, "29129"))
528 return &platforms[WLA2_G54L];
529 if (!strcmp(buf, "30189"))
530 return &platforms[WHR_HP_G54];
531 if (!strcmp(buf, "30182"))
532 return &platforms[WHR_G54S];
533 if (!strcmp(buf, "290441dd"))
534 return &platforms[WHR2_A54G54];
535 if (!strcmp(buf, "30083"))
536 return &platforms[WZR_RS_G54];
537 if (!strcmp(buf, "30103"))
538 return &platforms[WZR_RS_G54HP];
539 }
540
541 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
542 if (!strncmp(boardtype, "bcm94710ap", 10))
543 return &platforms[BUFFALO_UNKNOWN_4710];
544 else
545 return &platforms[BUFFALO_UNKNOWN];
546 }
547
548 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
549 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
550
551 return &platforms[WR850GV2V3];
552 }
553
554 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
555 return &platforms[TEW411BRPP];
556 }
557
558 /* not found */
559 return NULL;
560 }
561
562 static void register_buttons(struct button_t *b)
563 {
564 for (; b->name; b++)
565 platform.button_mask |= b->gpio;
566
567 platform.button_mask &= ~gpiomask;
568
569 gpio_outen(platform.button_mask, 0);
570 gpio_control(platform.button_mask, 0);
571 platform.button_polarity = gpio_in() & platform.button_mask;
572 gpio_intpolarity(platform.button_mask, platform.button_polarity);
573 gpio_intmask(platform.button_mask, platform.button_mask);
574
575 gpio_set_irqenable(1, button_handler);
576 }
577
578 static void unregister_buttons(struct button_t *b)
579 {
580 gpio_intmask(platform.button_mask, 0);
581
582 gpio_set_irqenable(0, button_handler);
583 }
584
585 static void hotplug_button(struct event_t *event)
586 {
587 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
588 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
589 #else
590 call_usermodehelper (event->argv[0], event->argv, event->envp);
591 #endif
592 kfree(event);
593 }
594
595 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
596 {
597 struct button_t *b;
598 u32 in, changed;
599
600 in = gpio_in() & platform.button_mask;
601 gpio_intpolarity(platform.button_mask, in);
602 changed = platform.button_polarity ^ in;
603 platform.button_polarity = in;
604
605 changed &= ~gpio_outen(0, 0);
606
607 for (b = platform.buttons; b->name; b++) {
608 struct event_t *event;
609
610 if (!(b->gpio & changed)) continue;
611
612 b->pressed ^= 1;
613
614 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
615 int i;
616 char *scratch = event->buf;
617
618 i = 0;
619 event->argv[i++] = hotplug_path;
620 event->argv[i++] = "button";
621 event->argv[i] = 0;
622
623 i = 0;
624 event->envp[i++] = "HOME=/";
625 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
626 event->envp[i++] = scratch;
627 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
628 event->envp[i++] = scratch;
629 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
630 event->envp[i++] = scratch;
631 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
632 event->envp[i] = 0;
633
634 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
635 schedule_work(&event->wq);
636 }
637
638 b->seen = jiffies;
639 }
640 return IRQ_HANDLED;
641 }
642
643 static void register_leds(struct led_t *l)
644 {
645 struct proc_dir_entry *p;
646 u32 mask = 0;
647 u32 val = 0;
648
649 leds = proc_mkdir("led", diag);
650 if (!leds)
651 return;
652
653 for(; l->name; l++) {
654 if (l->gpio & gpiomask)
655 continue;
656
657 if (l->gpio & GPIO_TYPE_EXTIF) {
658 l->state = 0;
659 set_led_extif(l);
660 } else {
661 mask |= l->gpio;
662 val |= (l->polarity == NORMAL)?0:l->gpio;
663 }
664
665 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
666 l->proc.type = PROC_LED;
667 l->proc.ptr = l;
668 p->data = (void *) &l->proc;
669 p->proc_fops = &diag_proc_fops;
670 }
671 }
672
673 gpio_outen(mask, mask);
674 gpio_control(mask, 0);
675 gpio_out(mask, val);
676 }
677
678 static void unregister_leds(struct led_t *l)
679 {
680 for(; l->name; l++)
681 remove_proc_entry(l->name, leds);
682
683 remove_proc_entry("led", diag);
684 }
685
686 static void set_led_extif(struct led_t *led)
687 {
688 gpio_set_extif(led->gpio, led->state);
689 }
690
691 static void led_flash(unsigned long dummy) {
692 struct led_t *l;
693 u32 mask = 0;
694 u8 extif_blink = 0;
695
696 for (l = platform.leds; l->name; l++) {
697 if (l->flash) {
698 if (l->gpio & GPIO_TYPE_EXTIF) {
699 extif_blink = 1;
700 l->state = !l->state;
701 set_led_extif(l);
702 } else {
703 mask |= l->gpio;
704 }
705 }
706 }
707
708 mask &= ~gpiomask;
709 if (mask) {
710 u32 val = ~gpio_in();
711
712 gpio_outen(mask, mask);
713 gpio_control(mask, 0);
714 gpio_out(mask, val);
715 }
716 if (mask || extif_blink) {
717 mod_timer(&led_timer, jiffies + FLASH_TIME);
718 }
719 }
720
721 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
722 {
723 #ifdef LINUX_2_4
724 struct inode *inode = file->f_dentry->d_inode;
725 struct proc_dir_entry *dent = inode->u.generic_ip;
726 #else
727 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
728 #endif
729 char *page;
730 int len = 0;
731
732 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
733 return -ENOBUFS;
734
735 if (dent->data != NULL) {
736 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
737 switch (handler->type) {
738 case PROC_LED: {
739 struct led_t * led = (struct led_t *) handler->ptr;
740 if (led->flash) {
741 len = sprintf(page, "f\n");
742 } else {
743 if (led->gpio & GPIO_TYPE_EXTIF) {
744 len = sprintf(page, "%d\n", led->state);
745 } else {
746 u32 in = (gpio_in() & led->gpio ? 1 : 0);
747 u8 p = (led->polarity == NORMAL ? 0 : 1);
748 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
749 }
750 }
751 break;
752 }
753 case PROC_MODEL:
754 len = sprintf(page, "%s\n", platform.name);
755 break;
756 case PROC_GPIOMASK:
757 len = sprintf(page, "0x%04x\n", gpiomask);
758 break;
759 }
760 }
761 len += 1;
762
763 if (*ppos < len) {
764 len = min_t(int, len - *ppos, count);
765 if (copy_to_user(buf, (page + *ppos), len)) {
766 kfree(page);
767 return -EFAULT;
768 }
769 *ppos += len;
770 } else {
771 len = 0;
772 }
773
774 return len;
775 }
776
777
778 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
779 {
780 #ifdef LINUX_2_4
781 struct inode *inode = file->f_dentry->d_inode;
782 struct proc_dir_entry *dent = inode->u.generic_ip;
783 #else
784 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
785 #endif
786 char *page;
787 int ret = -EINVAL;
788
789 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
790 return -ENOBUFS;
791
792 if (copy_from_user(page, buf, count)) {
793 kfree(page);
794 return -EINVAL;
795 }
796 page[count] = 0;
797
798 if (dent->data != NULL) {
799 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
800 switch (handler->type) {
801 case PROC_LED: {
802 struct led_t *led = (struct led_t *) handler->ptr;
803 int p = (led->polarity == NORMAL ? 0 : 1);
804
805 if (page[0] == 'f') {
806 led->flash = 1;
807 led_flash(0);
808 } else {
809 led->flash = 0;
810 if (led->gpio & GPIO_TYPE_EXTIF) {
811 led->state = p ^ ((page[0] == '1') ? 1 : 0);
812 set_led_extif(led);
813 } else {
814 gpio_outen(led->gpio, led->gpio);
815 gpio_control(led->gpio, 0);
816 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
817 }
818 }
819 break;
820 }
821 case PROC_GPIOMASK:
822 gpiomask = simple_strtoul(page, NULL, 0);
823
824 if (platform.buttons) {
825 unregister_buttons(platform.buttons);
826 register_buttons(platform.buttons);
827 }
828
829 if (platform.leds) {
830 unregister_leds(platform.leds);
831 register_leds(platform.leds);
832 }
833 break;
834 }
835 ret = count;
836 }
837
838 kfree(page);
839 return ret;
840 }
841
842 static int __init diag_init(void)
843 {
844 static struct proc_dir_entry *p;
845 static struct platform_t *detected;
846
847 detected = platform_detect();
848 if (!detected) {
849 printk(MODULE_NAME ": Router model not detected.\n");
850 return -ENODEV;
851 }
852 memcpy(&platform, detected, sizeof(struct platform_t));
853
854 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
855
856 if (!(diag = proc_mkdir("diag", NULL))) {
857 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
858 return -EINVAL;
859 }
860
861 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
862 p->data = (void *) &proc_model;
863 p->proc_fops = &diag_proc_fops;
864 }
865
866 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
867 p->data = (void *) &proc_gpiomask;
868 p->proc_fops = &diag_proc_fops;
869 }
870
871 if (platform.buttons)
872 register_buttons(platform.buttons);
873
874 if (platform.leds)
875 register_leds(platform.leds);
876
877 return 0;
878 }
879
880 static void __exit diag_exit(void)
881 {
882
883 del_timer(&led_timer);
884
885 if (platform.buttons)
886 unregister_buttons(platform.buttons);
887
888 if (platform.leds)
889 unregister_leds(platform.leds);
890
891 remove_proc_entry("model", diag);
892 remove_proc_entry("gpiomask", diag);
893 remove_proc_entry("diag", NULL);
894 }
895
896 module_init(diag_init);
897 module_exit(diag_exit);
898
899 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
900 MODULE_LICENSE("GPL");
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