2 * diag.c - GPIO interface driver for Broadcom boards
4 * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
5 * Felix Fietkau <nbd@openwrt.org>
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.
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.
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.
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>
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
36 #include <linux/tqueue.h>
37 #define INIT_WORK INIT_TQUEUE
38 #define schedule_work schedule_task
39 #define work_struct tq_struct
44 #define getvar(str) (nvram_get(str)?:"")
46 static unsigned int gpiomask = 0;
47 module_param(gpiomask, int, 0644);
113 static void __init bcm4780_init(void) {
116 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
117 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
118 gpio_outen(pin, pin);
119 gpio_control(pin, 0);
122 /* Wait 5s, so the HDD can spin up */
123 set_current_state(TASK_INTERRUPTIBLE);
124 schedule_timeout(HZ * 5);
127 static struct platform_t __initdata platforms[] = {
130 .name = "Linksys WAP54G V1",
132 { .name = "reset", .gpio = 1 << 0 },
135 { .name = "diag", .gpio = 1 << 3 },
136 { .name = "wlan", .gpio = 1 << 4 },
140 .name = "Linksys WAP54G V3",
142 /* FIXME: verify this */
143 { .name = "reset", .gpio = 1 << 7 },
144 { .name = "ses", .gpio = 1 << 0 },
148 { .name = "ses", .gpio = 1 << 1 },
152 .name = "Linksys WRT54G V1.x",
154 { .name = "reset", .gpio = 1 << 6 },
157 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
158 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
162 .name = "Linksys WRT54G/GS/GL",
164 { .name = "reset", .gpio = 1 << 6 },
165 { .name = "ses", .gpio = 1 << 4 },
168 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
169 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
170 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
171 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
172 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
176 .name = "Linksys WRTSL54GS",
178 { .name = "reset", .gpio = 1 << 6 },
179 { .name = "ses", .gpio = 1 << 4 },
182 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
183 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
184 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
185 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
189 .name = "Linksys WRT54G3G",
191 { .name = "reset", .gpio = 1 << 6 },
192 { .name = "3g", .gpio = 1 << 4 },
195 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
196 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
197 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
198 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
199 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
203 .name = "Linksys WRT350N",
205 { .name = "reset", .gpio = 1 << 6 },
206 { .name = "ses", .gpio = 1 << 8 },
209 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
210 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
215 .name = "ASUS WL-HDD",
217 { .name = "reset", .gpio = 1 << 6 },
220 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
221 { .name = "usb", .gpio = 1 << 2, .polarity = NORMAL },
225 .name = "ASUS WL-300g",
227 { .name = "reset", .gpio = 1 << 6 },
230 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
234 .name = "ASUS WL-500g",
236 { .name = "reset", .gpio = 1 << 6 },
239 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
243 .name = "ASUS WL-500g Deluxe",
245 { .name = "reset", .gpio = 1 << 6 },
248 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
252 .name = "ASUS WL-500g Premium",
254 { .name = "reset", .gpio = 1 << 0 },
255 { .name = "ses", .gpio = 1 << 4 },
258 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
262 .name = "ASUS WL-500W",
264 { .name = "reset", .gpio = 1 << 6 },
265 { .name = "ses", .gpio = 1 << 7 },
268 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
272 .name = "ASUS (unknown, BCM4702)",
274 { .name = "reset", .gpio = 1 << 6 },
277 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
281 .name = "ASUS WL-700gE",
283 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
284 { .name = "ses", .gpio = 1 << 4 }, // on back, actual name ezsetup
285 { .name = "power", .gpio = 1 << 0 }, // on front
286 { .name = "copy", .gpio = 1 << 6 }, // on front
290 // GPIO that controls power led also enables/disables some essential functions
293 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL }, // actual name power
295 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
297 .platform_init = bcm4780_init,
301 .name = "Buffalo WHR-G54S",
303 { .name = "reset", .gpio = 1 << 4 },
304 { .name = "bridge", .gpio = 1 << 5 },
305 { .name = "ses", .gpio = 1 << 0 },
308 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
309 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
310 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
311 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
312 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
316 .name = "Buffalo WBR2-G54",
319 { .name = "reset", .gpio = 1 << 7 },
322 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
326 .name = "Buffalo WHR-HP-G54",
328 { .name = "reset", .gpio = 1 << 4 },
329 { .name = "bridge", .gpio = 1 << 5 },
330 { .name = "ses", .gpio = 1 << 0 },
333 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
334 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
335 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
336 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
337 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
341 .name = "Buffalo WHR2-A54G54",
343 { .name = "reset", .gpio = 1 << 4 },
346 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
350 .name = "Buffalo WLA2-G54L",
353 { .name = "reset", .gpio = 1 << 7 },
356 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
360 .name = "Buffalo WZR-G300N",
362 { .name = "reset", .gpio = 1 << 4 },
365 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
366 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
367 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
371 .name = "Buffalo WZR-RS-G54",
373 { .name = "ses", .gpio = 1 << 0 },
374 { .name = "reset", .gpio = 1 << 4 },
377 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
378 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
379 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
383 .name = "Buffalo WZR-RS-G54HP",
385 { .name = "ses", .gpio = 1 << 0 },
386 { .name = "reset", .gpio = 1 << 4 },
389 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
390 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
391 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
394 [BUFFALO_UNKNOWN] = {
395 .name = "Buffalo (unknown)",
397 { .name = "reset", .gpio = 1 << 7 },
400 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
403 [BUFFALO_UNKNOWN_4710] = {
404 .name = "Buffalo (unknown, BCM4710)",
406 { .name = "reset", .gpio = 1 << 4 },
409 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
414 .name = "Siemens SE505 V1",
416 /* No usable buttons */
419 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
420 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
424 .name = "Siemens SE505 V2",
426 /* No usable buttons */
429 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
430 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
431 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
436 .name = "U.S. Robotics USR5461",
438 /* No usable buttons */
441 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
442 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
447 .name = "Dell TrueMobile 2300",
449 { .name = "reset", .gpio = 1 << 0 },
452 { .name = "wlan", .gpio = 1 << 6, .polarity = REVERSE },
453 { .name = "power", .gpio = 1 << 7, .polarity = REVERSE },
458 .name = "Motorola WE800G",
460 { .name = "reset", .gpio = 1 << 0 },
463 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
464 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
465 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
469 .name = "Motorola WR850G V1",
471 { .name = "reset", .gpio = 1 << 0 },
474 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
475 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
476 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
477 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
478 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
482 .name = "Motorola WR850G V2/V3",
484 { .name = "reset", .gpio = 1 << 5 },
487 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
488 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
489 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
490 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
495 .name = "Belkin (unknown)",
496 /* FIXME: verify & add detection */
498 { .name = "reset", .gpio = 1 << 7 },
501 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
502 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
503 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
508 .name = "Netgear WGT634U",
510 { .name = "reset", .gpio = 1 << 2 },
513 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL },
518 .name = "Trendware TEW411BRP+",
520 { /* No usable buttons */ },
523 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
524 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
525 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
530 .name = "SimpleTech SimpleShare NAS",
532 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
533 { .name = "power", .gpio = 1 << 0 }, // on back
536 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
538 .platform_init = bcm4780_init,
542 .name = "D-Link DIR-130",
544 { .name = "reset", .gpio = 1 << 3},
545 { .name = "reserved", .gpio = 1 << 7},
548 { .name = "diag", .gpio = 1 << 0},
549 { .name = "blue", .gpio = 1 << 6},
553 .name = "D-Link DIR-330",
555 { .name = "reset", .gpio = 1 << 3},
556 { .name = "reserved", .gpio = 1 << 7},
559 { .name = "diag", .gpio = 1 << 0},
560 { .name = "usb", .gpio = 1 << 4},
561 { .name = "blue", .gpio = 1 << 6},
566 static struct platform_t __init *platform_detect(void)
568 char *boardnum, *boardtype, *buf;
570 boardnum = getvar("boardnum");
571 boardtype = getvar("boardtype");
573 if (strcmp(getvar("nvram_type"), "cfe") == 0)
574 return &platforms[WGT634U];
576 if (strncmp(getvar("model_no"), "WL700",5) == 0)
577 return &platforms[WL700GE];
579 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
580 /* CFE based - newer hardware */
581 if (!strcmp(boardnum, "42")) { /* Linksys */
582 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
583 return &platforms[WRT350N];
585 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
586 return &platforms[WRT54G3G];
588 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
589 return &platforms[WRTSL54GS];
591 /* default to WRT54G */
592 return &platforms[WRT54G];
595 if (!strcmp(boardnum, "45")) { /* ASUS */
596 if (!strcmp(boardtype,"0x042f"))
597 return &platforms[WL500GP];
598 else if (!strcmp(boardtype,"0x0472"))
599 return &platforms[WL500W];
601 return &platforms[WL500GD];
604 if (!strcmp(boardnum, "10496"))
605 return &platforms[USR5461];
608 if (!strcmp(getvar("model_name"), "DIR-130"))
609 return &platforms[DIR130];
610 if (!strcmp(getvar("model_name"), "DIR-330"))
611 return &platforms[DIR330];
613 } else { /* PMON based - old stuff */
615 /* Dell TrueMobile 2300 */
616 if (!strcmp(getvar("ModelId"),"WX-5565"))
617 return &platforms[TM2300];
619 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
620 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
621 if (!strncmp(getvar("ModelId"),"WE800G", 6))
622 return &platforms[WE800G];
624 return &platforms[WR850GV1];
626 if (!strncmp(boardtype, "bcm94710dev", 11)) {
627 if (!strcmp(boardnum, "42"))
628 return &platforms[WRT54GV1];
629 if (simple_strtoul(boardnum, NULL, 0) == 2)
630 return &platforms[WAP54GV1];
632 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
633 return &platforms[WL500G];
634 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
635 /* Either WL-300g or WL-HDD, do more extensive checks */
636 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
637 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
638 return &platforms[WLHDD];
639 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
640 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
641 return &platforms[WL300G];
644 /* unknown asus stuff, probably bcm4702 */
645 if (!strncmp(boardnum, "asusX", 5))
646 return &platforms[ASUS_4702];
649 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
650 /* Buffalo hardware, check id for specific hardware matches */
651 if (!strcmp(buf, "29bb0332"))
652 return &platforms[WBR2_G54];
653 if (!strcmp(buf, "29129"))
654 return &platforms[WLA2_G54L];
655 if (!strcmp(buf, "30189"))
656 return &platforms[WHR_HP_G54];
657 if (!strcmp(buf, "30182"))
658 return &platforms[WHR_G54S];
659 if (!strcmp(buf, "290441dd"))
660 return &platforms[WHR2_A54G54];
661 if (!strcmp(buf, "31120"))
662 return &platforms[WZR_G300N];
663 if (!strcmp(buf, "30083"))
664 return &platforms[WZR_RS_G54];
665 if (!strcmp(buf, "30103"))
666 return &platforms[WZR_RS_G54HP];
669 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
670 if (!strncmp(boardtype, "bcm94710ap", 10))
671 return &platforms[BUFFALO_UNKNOWN_4710];
673 return &platforms[BUFFALO_UNKNOWN];
676 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
677 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
679 return &platforms[WR850GV2V3];
682 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
683 return &platforms[TEW411BRPP];
686 if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
687 return &platforms[STI_NAS];
693 static void register_buttons(struct button_t *b)
696 platform.button_mask |= b->gpio;
698 platform.button_mask &= ~gpiomask;
700 gpio_outen(platform.button_mask, 0);
701 gpio_control(platform.button_mask, 0);
702 platform.button_polarity = gpio_in() & platform.button_mask;
703 gpio_intpolarity(platform.button_mask, platform.button_polarity);
704 gpio_intmask(platform.button_mask, platform.button_mask);
706 gpio_set_irqenable(1, button_handler);
709 static void unregister_buttons(struct button_t *b)
711 gpio_intmask(platform.button_mask, 0);
713 gpio_set_irqenable(0, button_handler);
716 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
717 static void hotplug_button(struct work_struct *work)
719 struct event_t *event = container_of(work, struct event_t, wq);
721 static void hotplug_button(struct event_t *event)
724 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
725 call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
727 call_usermodehelper (event->argv[0], event->argv, event->envp);
732 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
737 in = gpio_in() & platform.button_mask;
738 gpio_intpolarity(platform.button_mask, in);
739 changed = platform.button_polarity ^ in;
740 platform.button_polarity = in;
742 changed &= ~gpio_outen(0, 0);
744 for (b = platform.buttons; b->name; b++) {
745 struct event_t *event;
747 if (!(b->gpio & changed)) continue;
751 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
753 char *scratch = event->buf;
756 event->argv[i++] = hotplug_path;
757 event->argv[i++] = "button";
761 event->envp[i++] = "HOME=/";
762 event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
763 event->envp[i++] = scratch;
764 scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
765 event->envp[i++] = scratch;
766 scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
767 event->envp[i++] = scratch;
768 scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
771 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
772 INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
774 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
776 schedule_work(&event->wq);
784 static void register_leds(struct led_t *l)
786 struct proc_dir_entry *p;
790 leds = proc_mkdir("led", diag);
794 for(; l->name; l++) {
795 if (l->gpio & gpiomask)
798 if (l->gpio & GPIO_TYPE_EXTIF) {
803 val |= (l->polarity == NORMAL)?0:l->gpio;
806 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
807 l->proc.type = PROC_LED;
809 p->data = (void *) &l->proc;
810 p->proc_fops = &diag_proc_fops;
814 gpio_outen(mask, mask);
815 gpio_control(mask, 0);
819 static void unregister_leds(struct led_t *l)
822 remove_proc_entry(l->name, leds);
824 remove_proc_entry("led", diag);
827 static void set_led_extif(struct led_t *led)
829 gpio_set_extif(led->gpio, led->state);
832 static void led_flash(unsigned long dummy) {
837 for (l = platform.leds; l->name; l++) {
839 if (l->gpio & GPIO_TYPE_EXTIF) {
841 l->state = !l->state;
851 u32 val = ~gpio_in();
853 gpio_outen(mask, mask);
854 gpio_control(mask, 0);
857 if (mask || extif_blink) {
858 mod_timer(&led_timer, jiffies + FLASH_TIME);
862 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
865 struct inode *inode = file->f_dentry->d_inode;
866 struct proc_dir_entry *dent = inode->u.generic_ip;
868 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
873 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
876 if (dent->data != NULL) {
877 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
878 switch (handler->type) {
880 struct led_t * led = (struct led_t *) handler->ptr;
882 len = sprintf(page, "f\n");
884 if (led->gpio & GPIO_TYPE_EXTIF) {
885 len = sprintf(page, "%d\n", led->state);
887 u32 in = (gpio_in() & led->gpio ? 1 : 0);
888 u8 p = (led->polarity == NORMAL ? 0 : 1);
889 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
895 len = sprintf(page, "%s\n", platform.name);
898 len = sprintf(page, "0x%04x\n", gpiomask);
905 len = min_t(int, len - *ppos, count);
906 if (copy_to_user(buf, (page + *ppos), len)) {
920 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
923 struct inode *inode = file->f_dentry->d_inode;
924 struct proc_dir_entry *dent = inode->u.generic_ip;
926 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
931 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
934 if (copy_from_user(page, buf, count)) {
940 if (dent->data != NULL) {
941 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
942 switch (handler->type) {
944 struct led_t *led = (struct led_t *) handler->ptr;
945 int p = (led->polarity == NORMAL ? 0 : 1);
947 if (page[0] == 'f') {
952 if (led->gpio & GPIO_TYPE_EXTIF) {
953 led->state = p ^ ((page[0] == '1') ? 1 : 0);
956 gpio_outen(led->gpio, led->gpio);
957 gpio_control(led->gpio, 0);
958 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
964 gpiomask = simple_strtoul(page, NULL, 0);
966 if (platform.buttons) {
967 unregister_buttons(platform.buttons);
968 register_buttons(platform.buttons);
972 unregister_leds(platform.leds);
973 register_leds(platform.leds);
984 static int __init diag_init(void)
986 static struct proc_dir_entry *p;
987 static struct platform_t *detected;
989 detected = platform_detect();
991 printk(MODULE_NAME ": Router model not detected.\n");
994 memcpy(&platform, detected, sizeof(struct platform_t));
996 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
997 if (platform.platform_init != NULL) {
998 platform.platform_init();
1001 if (!(diag = proc_mkdir("diag", NULL))) {
1002 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1006 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1007 p->data = (void *) &proc_model;
1008 p->proc_fops = &diag_proc_fops;
1011 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1012 p->data = (void *) &proc_gpiomask;
1013 p->proc_fops = &diag_proc_fops;
1016 if (platform.buttons)
1017 register_buttons(platform.buttons);
1020 register_leds(platform.leds);
1025 static void __exit diag_exit(void)
1028 del_timer(&led_timer);
1030 if (platform.buttons)
1031 unregister_buttons(platform.buttons);
1034 unregister_leds(platform.leds);
1036 remove_proc_entry("model", diag);
1037 remove_proc_entry("gpiomask", diag);
1038 remove_proc_entry("diag", NULL);
1041 module_init(diag_init);
1042 module_exit(diag_exit);
1044 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1045 MODULE_LICENSE("GPL");