2 * diag.c - GPIO interface driver for Broadcom boards
4 * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
5 * Copyright (C) 2006-2007 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>
32 #include <linux/workqueue.h>
33 #include <linux/skbuff.h>
34 #include <linux/netlink.h>
36 extern struct sock *uevent_sock;
37 extern u64 uevent_next_seqnum(void);
39 #include <linux/tqueue.h>
40 #define INIT_WORK INIT_TQUEUE
41 #define schedule_work schedule_task
42 #define work_struct tq_struct
47 #define getvar(str) (nvram_get(str)?:"")
49 static int fill_event(struct event_t *);
50 static unsigned int gpiomask = 0;
51 module_param(gpiomask, int, 0644);
118 static void __init bcm4780_init(void) {
121 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
122 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
123 gpio_outen(pin, pin);
124 gpio_control(pin, 0);
127 /* Wait 5s, so the HDD can spin up */
128 set_current_state(TASK_INTERRUPTIBLE);
129 schedule_timeout(HZ * 5);
132 static struct platform_t __initdata platforms[] = {
135 .name = "Linksys WAP54G V1",
137 { .name = "reset", .gpio = 1 << 0 },
140 { .name = "diag", .gpio = 1 << 3 },
141 { .name = "wlan", .gpio = 1 << 4 },
145 .name = "Linksys WAP54G V3",
147 /* FIXME: verify this */
148 { .name = "reset", .gpio = 1 << 7 },
149 { .name = "ses", .gpio = 1 << 0 },
153 { .name = "ses", .gpio = 1 << 1 },
157 .name = "Linksys WRT54G V1.x",
159 { .name = "reset", .gpio = 1 << 6 },
162 { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
163 { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
167 .name = "Linksys WRT54G/GS/GL",
169 { .name = "reset", .gpio = 1 << 6 },
170 { .name = "ses", .gpio = 1 << 4 },
173 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
174 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
175 { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
176 { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
177 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
181 .name = "Linksys WRTSL54GS",
183 { .name = "reset", .gpio = 1 << 6 },
184 { .name = "ses", .gpio = 1 << 4 },
187 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
188 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
189 { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
190 { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
194 .name = "Linksys WRT54G3G",
196 { .name = "reset", .gpio = 1 << 6 },
197 { .name = "3g", .gpio = 1 << 4 },
200 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
201 { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
202 { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
203 { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
204 { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
208 .name = "Linksys WRT350N",
210 { .name = "reset", .gpio = 1 << 6 },
211 { .name = "ses", .gpio = 1 << 8 },
214 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
215 { .name = "ses", .gpio = 1 << 3, .polarity = REVERSE },
220 .name = "ASUS WL-HDD",
222 { .name = "reset", .gpio = 1 << 6 },
225 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
226 { .name = "usb", .gpio = 1 << 2, .polarity = NORMAL },
230 .name = "ASUS WL-300g",
232 { .name = "reset", .gpio = 1 << 6 },
235 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
239 .name = "ASUS WL-500g",
241 { .name = "reset", .gpio = 1 << 6 },
244 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
248 .name = "ASUS WL-500g Deluxe",
250 { .name = "reset", .gpio = 1 << 6 },
253 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
257 .name = "ASUS WL-500g Premium",
259 { .name = "reset", .gpio = 1 << 0 },
260 { .name = "ses", .gpio = 1 << 4 },
263 { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
267 .name = "ASUS WL-500W",
269 { .name = "reset", .gpio = 1 << 6 },
270 { .name = "ses", .gpio = 1 << 7 },
273 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
277 .name = "ASUS (unknown, BCM4702)",
279 { .name = "reset", .gpio = 1 << 6 },
282 { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
286 .name = "ASUS WL-700gE",
288 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
289 { .name = "ses", .gpio = 1 << 4 }, // on back, actual name ezsetup
290 { .name = "power", .gpio = 1 << 0 }, // on front
291 { .name = "copy", .gpio = 1 << 6 }, // on front
295 // GPIO that controls power led also enables/disables some essential functions
298 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL }, // actual name power
300 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
302 .platform_init = bcm4780_init,
306 .name = "Buffalo WHR-G54S",
308 { .name = "reset", .gpio = 1 << 4 },
309 { .name = "bridge", .gpio = 1 << 5 },
310 { .name = "ses", .gpio = 1 << 0 },
313 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
314 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
315 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
316 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
317 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
321 .name = "Buffalo WBR2-G54",
324 { .name = "reset", .gpio = 1 << 7 },
327 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
331 .name = "Buffalo WHR-HP-G54",
333 { .name = "reset", .gpio = 1 << 4 },
334 { .name = "bridge", .gpio = 1 << 5 },
335 { .name = "ses", .gpio = 1 << 0 },
338 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
339 { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
340 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
341 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
342 { .name = "wlan", .gpio = 1 << 2, .polarity = REVERSE },
346 .name = "Buffalo WHR2-A54G54",
348 { .name = "reset", .gpio = 1 << 4 },
351 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
355 .name = "Buffalo WLA2-G54L",
358 { .name = "reset", .gpio = 1 << 7 },
361 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
365 .name = "Buffalo WZR-G300N",
367 { .name = "reset", .gpio = 1 << 4 },
370 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
371 { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
372 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
376 .name = "Buffalo WZR-RS-G54",
378 { .name = "ses", .gpio = 1 << 0 },
379 { .name = "reset", .gpio = 1 << 4 },
382 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
383 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
384 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
388 .name = "Buffalo WZR-RS-G54HP",
390 { .name = "ses", .gpio = 1 << 0 },
391 { .name = "reset", .gpio = 1 << 4 },
394 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
395 { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
396 { .name = "vpn", .gpio = 1 << 1, .polarity = REVERSE },
399 [BUFFALO_UNKNOWN] = {
400 .name = "Buffalo (unknown)",
402 { .name = "reset", .gpio = 1 << 7 },
405 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
408 [BUFFALO_UNKNOWN_4710] = {
409 .name = "Buffalo (unknown, BCM4710)",
411 { .name = "reset", .gpio = 1 << 4 },
414 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
419 .name = "Siemens SE505 V1",
421 /* No usable buttons */
424 { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
425 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
429 .name = "Siemens SE505 V2",
431 /* No usable buttons */
434 { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
435 { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
436 { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
441 .name = "U.S. Robotics USR5461",
443 /* No usable buttons */
446 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
447 { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
452 .name = "Dell TrueMobile 2300",
454 { .name = "reset", .gpio = 1 << 0 },
457 { .name = "wlan", .gpio = 1 << 6, .polarity = REVERSE },
458 { .name = "power", .gpio = 1 << 7, .polarity = REVERSE },
463 .name = "Motorola WE800G",
465 { .name = "reset", .gpio = 1 << 0 },
468 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
469 { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
470 { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
474 .name = "Motorola WR850G V1",
476 { .name = "reset", .gpio = 1 << 0 },
479 { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
480 { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
481 { .name = "dmz", .gpio = 1 << 6, .polarity = NORMAL },
482 { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
483 { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
487 .name = "Motorola WR850G V2/V3",
489 { .name = "reset", .gpio = 1 << 5 },
492 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
493 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
494 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
495 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
499 .name = "Motorola WR850GP",
501 { .name = "reset", .gpio = 1 << 5 },
504 { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
505 { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
506 { .name = "dmz", .gpio = 1 << 6, .polarity = REVERSE },
507 { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
513 .name = "Belkin (unknown)",
514 /* FIXME: verify & add detection */
516 { .name = "reset", .gpio = 1 << 7 },
519 { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
520 { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
521 { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
526 .name = "Netgear WGT634U",
528 { .name = "reset", .gpio = 1 << 2 },
531 { .name = "power", .gpio = 1 << 3, .polarity = NORMAL },
536 .name = "Trendware TEW411BRP+",
538 { /* No usable buttons */ },
541 { .name = "power", .gpio = 1 << 7, .polarity = NORMAL },
542 { .name = "wlan", .gpio = 1 << 1, .polarity = NORMAL },
543 { .name = "bridge", .gpio = 1 << 6, .polarity = NORMAL },
548 .name = "SimpleTech SimpleShare NAS",
550 { .name = "reset", .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
551 { .name = "power", .gpio = 1 << 0 }, // on back
554 { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
556 .platform_init = bcm4780_init,
560 .name = "D-Link DIR-130",
562 { .name = "reset", .gpio = 1 << 3},
563 { .name = "reserved", .gpio = 1 << 7},
566 { .name = "diag", .gpio = 1 << 0},
567 { .name = "blue", .gpio = 1 << 6},
571 .name = "D-Link DIR-330",
573 { .name = "reset", .gpio = 1 << 3},
574 { .name = "reserved", .gpio = 1 << 7},
577 { .name = "diag", .gpio = 1 << 0},
578 { .name = "usb", .gpio = 1 << 4},
579 { .name = "blue", .gpio = 1 << 6},
584 static struct platform_t __init *platform_detect(void)
586 char *boardnum, *boardtype, *buf;
588 if (strcmp(getvar("nvram_type"), "cfe") == 0)
589 return &platforms[WGT634U];
591 /* Look for a model identifier */
593 /* Based on "model_name" */
594 if (buf = nvram_get("model_name")) {
595 if (!strcmp(buf, "DIR-130"))
596 return &platforms[DIR130];
597 if (!strcmp(buf, "DIR-330"))
598 return &platforms[DIR330];
601 /* Based on "model_no" */
602 if (buf = nvram_get("model_no")) {
603 if (!strncmp(buf,"WL700", 5)) /* WL700* */
604 return &platforms[WL700GE];
607 /* Based on "ModelId" */
608 if (buf = nvram_get("ModelId")) {
609 if (!strcmp(buf, "WR850GP"))
610 return &platforms[WR850GP];
611 if (!strcmp(buf,"WX-5565"))
612 return &platforms[TM2300];
613 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
614 return &platforms[WE800G];
618 if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
619 /* Buffalo hardware, check id for specific hardware matches */
620 if (!strcmp(buf, "29bb0332"))
621 return &platforms[WBR2_G54];
622 if (!strcmp(buf, "29129"))
623 return &platforms[WLA2_G54L];
624 if (!strcmp(buf, "30189"))
625 return &platforms[WHR_HP_G54];
626 if (!strcmp(buf, "30182"))
627 return &platforms[WHR_G54S];
628 if (!strcmp(buf, "290441dd"))
629 return &platforms[WHR2_A54G54];
630 if (!strcmp(buf, "31120"))
631 return &platforms[WZR_G300N];
632 if (!strcmp(buf, "30083"))
633 return &platforms[WZR_RS_G54];
634 if (!strcmp(buf, "30103"))
635 return &platforms[WZR_RS_G54HP];
638 /* no easy model number, attempt to guess */
639 boardnum = getvar("boardnum");
640 boardtype = getvar("boardtype");
642 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
643 /* CFE based - newer hardware */
644 if (!strcmp(boardnum, "42")) { /* Linksys */
645 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
646 return &platforms[WRT350N];
648 if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
649 return &platforms[WRT54G3G];
651 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
652 return &platforms[WRTSL54GS];
654 /* default to WRT54G */
655 return &platforms[WRT54G];
658 if (!strcmp(boardnum, "45")) { /* ASUS */
659 if (!strcmp(boardtype,"0x042f"))
660 return &platforms[WL500GP];
661 else if (!strcmp(boardtype,"0x0472"))
662 return &platforms[WL500W];
664 return &platforms[WL500GD];
667 if (!strcmp(boardnum, "10496"))
668 return &platforms[USR5461];
670 } else { /* PMON based - old stuff */
671 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
672 (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
673 return &platforms[WR850GV1];
675 if (!strncmp(boardtype, "bcm94710dev", 11)) {
676 if (!strcmp(boardnum, "42"))
677 return &platforms[WRT54GV1];
678 if (simple_strtoul(boardnum, NULL, 0) == 2)
679 return &platforms[WAP54GV1];
681 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
682 return &platforms[WL500G];
683 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
684 /* Either WL-300g or WL-HDD, do more extensive checks */
685 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
686 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
687 return &platforms[WLHDD];
688 if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
689 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
690 return &platforms[WL300G];
693 /* unknown asus stuff, probably bcm4702 */
694 if (!strncmp(boardnum, "asusX", 5))
695 return &platforms[ASUS_4702];
698 if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
699 if (!strncmp(boardtype, "bcm94710ap", 10))
700 return &platforms[BUFFALO_UNKNOWN_4710];
702 return &platforms[BUFFALO_UNKNOWN];
705 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
706 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
708 return &platforms[WR850GV2V3];
711 if (!strcmp(boardnum, "44")) { /* Trendware TEW-411BRP+ */
712 return &platforms[TEW411BRPP];
715 if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
716 return &platforms[STI_NAS];
722 static void register_buttons(struct button_t *b)
725 platform.button_mask |= b->gpio;
727 platform.button_mask &= ~gpiomask;
729 gpio_outen(platform.button_mask, 0);
730 gpio_control(platform.button_mask, 0);
731 platform.button_polarity = gpio_in() & platform.button_mask;
732 gpio_intpolarity(platform.button_mask, platform.button_polarity);
733 gpio_intmask(platform.button_mask, platform.button_mask);
735 gpio_set_irqenable(1, button_handler);
738 static void unregister_buttons(struct button_t *b)
740 gpio_intmask(platform.button_mask, 0);
742 gpio_set_irqenable(0, button_handler);
747 static void add_msg(struct event_t *event, char *msg, int argv)
754 s = skb_put(event->skb, strlen(msg) + 1);
758 static void hotplug_button(struct work_struct *work)
760 struct event_t *event = container_of(work, struct event_t, wq);
766 event->skb = alloc_skb(2048, GFP_KERNEL);
768 s = skb_put(event->skb, strlen(event->action) + 2);
769 sprintf(s, "%s@", event->action);
772 NETLINK_CB(event->skb).dst_group = 1;
773 netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
778 #else /* !LINUX_2_4 */
779 static inline char *kzalloc(unsigned int size, unsigned int gfp)
783 p = kmalloc(size, gfp);
792 static void add_msg(struct event_t *event, char *msg, int argv)
795 event->argv[event->anr++] = event->scratch;
797 event->envp[event->enr++] = event->scratch;
799 event->scratch += sprintf(event->scratch, "%s", msg) + 1;
802 static void hotplug_button(struct event_t *event)
804 char *scratch = kzalloc(256, GFP_KERNEL);
805 event->scratch = scratch;
807 add_msg(event, hotplug_path, 1);
808 add_msg(event, "button", 1);
810 call_usermodehelper (event->argv[0], event->argv, event->envp);
814 #endif /* !LINUX_2_4 */
816 static int fill_event (struct event_t *event)
818 static char buf[128];
820 add_msg(event, "HOME=/", 0);
821 add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
822 add_msg(event, "SUBSYSTEM=button", 0);
823 snprintf(buf, 128, "ACTION=%s", event->action);
824 add_msg(event, buf, 0);
825 snprintf(buf, 128, "BUTTON=%s", event->name);
826 add_msg(event, buf, 0);
827 snprintf(buf, 128, "SEEN=%ld", event->seen);
828 add_msg(event, buf, 0);
830 snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
831 add_msg(event, buf, 0);
839 static irqreturn_t button_handler(int irq, void *dev_id)
841 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
847 in = gpio_in() & platform.button_mask;
848 gpio_intpolarity(platform.button_mask, in);
849 changed = platform.button_polarity ^ in;
850 platform.button_polarity = in;
852 changed &= ~gpio_outen(0, 0);
854 for (b = platform.buttons; b->name; b++) {
855 struct event_t *event;
857 if (!(b->gpio & changed)) continue;
861 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
862 event->seen = (jiffies - b->seen)/HZ;
863 event->name = b->name;
864 event->action = b->pressed ? "pressed" : "released";
865 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
866 INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
868 INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
870 schedule_work(&event->wq);
878 static void register_leds(struct led_t *l)
880 struct proc_dir_entry *p;
884 leds = proc_mkdir("led", diag);
888 for(; l->name; l++) {
889 if (l->gpio & gpiomask)
892 if (l->gpio & GPIO_TYPE_EXTIF) {
897 val |= (l->polarity == NORMAL)?0:l->gpio;
900 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
901 l->proc.type = PROC_LED;
903 p->data = (void *) &l->proc;
904 p->proc_fops = &diag_proc_fops;
908 gpio_outen(mask, mask);
909 gpio_control(mask, 0);
913 static void unregister_leds(struct led_t *l)
916 remove_proc_entry(l->name, leds);
918 remove_proc_entry("led", diag);
921 static void set_led_extif(struct led_t *led)
923 gpio_set_extif(led->gpio, led->state);
926 static void led_flash(unsigned long dummy) {
931 for (l = platform.leds; l->name; l++) {
933 if (l->gpio & GPIO_TYPE_EXTIF) {
935 l->state = !l->state;
945 u32 val = ~gpio_in();
947 gpio_outen(mask, mask);
948 gpio_control(mask, 0);
951 if (mask || extif_blink) {
952 mod_timer(&led_timer, jiffies + FLASH_TIME);
956 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
959 struct inode *inode = file->f_dentry->d_inode;
960 struct proc_dir_entry *dent = inode->u.generic_ip;
962 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
967 if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
970 if (dent->data != NULL) {
971 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
972 switch (handler->type) {
974 struct led_t * led = (struct led_t *) handler->ptr;
976 len = sprintf(page, "f\n");
978 if (led->gpio & GPIO_TYPE_EXTIF) {
979 len = sprintf(page, "%d\n", led->state);
981 u32 in = (gpio_in() & led->gpio ? 1 : 0);
982 u8 p = (led->polarity == NORMAL ? 0 : 1);
983 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
989 len = sprintf(page, "%s\n", platform.name);
992 len = sprintf(page, "0x%04x\n", gpiomask);
999 len = min_t(int, len - *ppos, count);
1000 if (copy_to_user(buf, (page + *ppos), len)) {
1014 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1017 struct inode *inode = file->f_dentry->d_inode;
1018 struct proc_dir_entry *dent = inode->u.generic_ip;
1020 struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1025 if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1028 if (copy_from_user(page, buf, count)) {
1034 if (dent->data != NULL) {
1035 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1036 switch (handler->type) {
1038 struct led_t *led = (struct led_t *) handler->ptr;
1039 int p = (led->polarity == NORMAL ? 0 : 1);
1041 if (page[0] == 'f') {
1046 if (led->gpio & GPIO_TYPE_EXTIF) {
1047 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1050 gpio_outen(led->gpio, led->gpio);
1051 gpio_control(led->gpio, 0);
1052 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1058 gpiomask = simple_strtoul(page, NULL, 0);
1060 if (platform.buttons) {
1061 unregister_buttons(platform.buttons);
1062 register_buttons(platform.buttons);
1065 if (platform.leds) {
1066 unregister_leds(platform.leds);
1067 register_leds(platform.leds);
1078 static int __init diag_init(void)
1080 static struct proc_dir_entry *p;
1081 static struct platform_t *detected;
1083 detected = platform_detect();
1085 printk(MODULE_NAME ": Router model not detected.\n");
1088 memcpy(&platform, detected, sizeof(struct platform_t));
1090 printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1091 if (platform.platform_init != NULL) {
1092 platform.platform_init();
1095 if (!(diag = proc_mkdir("diag", NULL))) {
1096 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1100 if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1101 p->data = (void *) &proc_model;
1102 p->proc_fops = &diag_proc_fops;
1105 if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1106 p->data = (void *) &proc_gpiomask;
1107 p->proc_fops = &diag_proc_fops;
1110 if (platform.buttons)
1111 register_buttons(platform.buttons);
1114 register_leds(platform.leds);
1119 static void __exit diag_exit(void)
1121 del_timer(&led_timer);
1123 if (platform.buttons)
1124 unregister_buttons(platform.buttons);
1127 unregister_leds(platform.leds);
1129 remove_proc_entry("model", diag);
1130 remove_proc_entry("gpiomask", diag);
1131 remove_proc_entry("diag", NULL);
1134 module_init(diag_init);
1135 module_exit(diag_exit);
1137 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1138 MODULE_LICENSE("GPL");