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);
119 static void __init
bcm4780_init(void) {
122 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
123 printk(MODULE_NAME
": Spinning up HDD and enabling leds\n");
124 gpio_outen(pin
, pin
);
125 gpio_control(pin
, 0);
128 /* Wait 5s, so the HDD can spin up */
129 set_current_state(TASK_INTERRUPTIBLE
);
130 schedule_timeout(HZ
* 5);
133 static struct platform_t __initdata platforms
[] = {
136 .name
= "Linksys WAP54G V1",
138 { .name
= "reset", .gpio
= 1 << 0 },
141 { .name
= "diag", .gpio
= 1 << 3 },
142 { .name
= "wlan", .gpio
= 1 << 4 },
146 .name
= "Linksys WAP54G V3",
148 /* FIXME: verify this */
149 { .name
= "reset", .gpio
= 1 << 7 },
150 { .name
= "ses", .gpio
= 1 << 0 },
154 { .name
= "ses", .gpio
= 1 << 1 },
158 .name
= "Linksys WRT54G V1.x",
160 { .name
= "reset", .gpio
= 1 << 6 },
163 { .name
= "diag", .gpio
= 0x13 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
164 { .name
= "dmz", .gpio
= 0x12 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
168 .name
= "Linksys WRT54G/GS/GL",
170 { .name
= "reset", .gpio
= 1 << 6 },
171 { .name
= "ses", .gpio
= 1 << 4 },
174 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
175 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
176 { .name
= "ses_white", .gpio
= 1 << 2, .polarity
= REVERSE
},
177 { .name
= "ses_orange", .gpio
= 1 << 3, .polarity
= REVERSE
},
178 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
182 .name
= "Linksys WRTSL54GS",
184 { .name
= "reset", .gpio
= 1 << 6 },
185 { .name
= "ses", .gpio
= 1 << 4 },
188 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
189 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
190 { .name
= "ses_white", .gpio
= 1 << 5, .polarity
= REVERSE
},
191 { .name
= "ses_orange", .gpio
= 1 << 7, .polarity
= REVERSE
},
195 .name
= "Linksys WRT54G3G",
197 { .name
= "reset", .gpio
= 1 << 6 },
198 { .name
= "3g", .gpio
= 1 << 4 },
201 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
202 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
203 { .name
= "3g_green", .gpio
= 1 << 2, .polarity
= NORMAL
},
204 { .name
= "3g_blue", .gpio
= 1 << 3, .polarity
= NORMAL
},
205 { .name
= "3g_blink", .gpio
= 1 << 5, .polarity
= NORMAL
},
209 .name
= "Linksys WRT350N",
211 { .name
= "reset", .gpio
= 1 << 6 },
212 { .name
= "ses", .gpio
= 1 << 8 },
215 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
216 { .name
= "ses", .gpio
= 1 << 3, .polarity
= REVERSE
},
221 .name
= "ASUS WL-HDD",
223 { .name
= "reset", .gpio
= 1 << 6 },
226 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
227 { .name
= "usb", .gpio
= 1 << 2, .polarity
= NORMAL
},
231 .name
= "ASUS WL-300g",
233 { .name
= "reset", .gpio
= 1 << 6 },
236 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
240 .name
= "ASUS WL-500g",
242 { .name
= "reset", .gpio
= 1 << 6 },
245 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
249 .name
= "ASUS WL-500g Deluxe",
251 { .name
= "reset", .gpio
= 1 << 6 },
254 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
258 .name
= "ASUS WL-500g Premium",
260 { .name
= "reset", .gpio
= 1 << 0 },
261 { .name
= "ses", .gpio
= 1 << 4 },
264 { .name
= "power", .gpio
= 1 << 1, .polarity
= REVERSE
},
268 .name
= "ASUS WL-500W",
270 { .name
= "reset", .gpio
= 1 << 6 },
271 { .name
= "ses", .gpio
= 1 << 7 },
274 { .name
= "power", .gpio
= 1 << 5, .polarity
= REVERSE
},
278 .name
= "ASUS (unknown, BCM4702)",
280 { .name
= "reset", .gpio
= 1 << 6 },
283 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
287 .name
= "ASUS WL-700gE",
289 { .name
= "reset", .gpio
= 1 << 7 }, // on back, hardwired, always resets device regardless OS state
290 { .name
= "ses", .gpio
= 1 << 4 }, // on back, actual name ezsetup
291 { .name
= "power", .gpio
= 1 << 0 }, // on front
292 { .name
= "copy", .gpio
= 1 << 6 }, // on front
296 // GPIO that controls power led also enables/disables some essential functions
299 { .name
= "power", .gpio
= 1 << 3, .polarity
= NORMAL
}, // actual name power
301 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
}, // actual name ready
303 .platform_init
= bcm4780_init
,
307 .name
= "Buffalo WHR-G54S",
309 { .name
= "reset", .gpio
= 1 << 4 },
310 { .name
= "bridge", .gpio
= 1 << 5 },
311 { .name
= "ses", .gpio
= 1 << 0 },
314 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
315 { .name
= "internal", .gpio
= 1 << 3, .polarity
= REVERSE
},
316 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
317 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
318 { .name
= "wlan", .gpio
= 1 << 2, .polarity
= REVERSE
},
322 .name
= "Buffalo WBR2-G54",
325 { .name
= "reset", .gpio
= 1 << 7 },
328 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
332 .name
= "Buffalo WHR-HP-G54",
334 { .name
= "reset", .gpio
= 1 << 4 },
335 { .name
= "bridge", .gpio
= 1 << 5 },
336 { .name
= "ses", .gpio
= 1 << 0 },
339 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
340 { .name
= "internal", .gpio
= 1 << 3, .polarity
= REVERSE
},
341 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
342 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
343 { .name
= "wlan", .gpio
= 1 << 2, .polarity
= REVERSE
},
347 .name
= "Buffalo WHR2-A54G54",
349 { .name
= "reset", .gpio
= 1 << 4 },
352 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
356 .name
= "Buffalo WLA2-G54L",
359 { .name
= "reset", .gpio
= 1 << 7 },
362 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
366 .name
= "Buffalo WZR-G300N",
368 { .name
= "reset", .gpio
= 1 << 4 },
371 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
372 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
373 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
377 .name
= "Buffalo WZR-RS-G54",
379 { .name
= "ses", .gpio
= 1 << 0 },
380 { .name
= "reset", .gpio
= 1 << 4 },
383 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
384 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
385 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
389 .name
= "Buffalo WZR-RS-G54HP",
391 { .name
= "ses", .gpio
= 1 << 0 },
392 { .name
= "reset", .gpio
= 1 << 4 },
395 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
396 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
397 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
400 [BUFFALO_UNKNOWN
] = {
401 .name
= "Buffalo (unknown)",
403 { .name
= "reset", .gpio
= 1 << 7 },
406 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
409 [BUFFALO_UNKNOWN_4710
] = {
410 .name
= "Buffalo (unknown, BCM4710)",
412 { .name
= "reset", .gpio
= 1 << 4 },
415 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
420 .name
= "Siemens SE505 V1",
422 /* No usable buttons */
425 { .name
= "dmz", .gpio
= 1 << 4, .polarity
= REVERSE
},
426 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
430 .name
= "Siemens SE505 V2",
432 /* No usable buttons */
435 { .name
= "power", .gpio
= 1 << 5, .polarity
= REVERSE
},
436 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
437 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
442 .name
= "U.S. Robotics USR5461",
444 /* No usable buttons */
447 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
448 { .name
= "printer", .gpio
= 1 << 1, .polarity
= REVERSE
},
453 .name
= "Dell TrueMobile 2300",
455 { .name
= "reset", .gpio
= 1 << 0 },
458 { .name
= "wlan", .gpio
= 1 << 6, .polarity
= REVERSE
},
459 { .name
= "power", .gpio
= 1 << 7, .polarity
= REVERSE
},
464 .name
= "Motorola WE800G",
466 { .name
= "reset", .gpio
= 1 << 0 },
469 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
470 { .name
= "diag", .gpio
= 1 << 2, .polarity
= REVERSE
},
471 { .name
= "wlan_amber", .gpio
= 1 << 1, .polarity
= NORMAL
},
475 .name
= "Motorola WR850G V1",
477 { .name
= "reset", .gpio
= 1 << 0 },
480 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
481 { .name
= "diag", .gpio
= 1 << 3, .polarity
= REVERSE
},
482 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= NORMAL
},
483 { .name
= "wlan_red", .gpio
= 1 << 5, .polarity
= REVERSE
},
484 { .name
= "wlan_green", .gpio
= 1 << 7, .polarity
= REVERSE
},
488 .name
= "Motorola WR850G V2/V3",
490 { .name
= "reset", .gpio
= 1 << 5 },
493 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
494 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
495 { .name
= "wan", .gpio
= 1 << 6, .polarity
= INPUT
},
496 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
500 .name
= "Motorola WR850GP",
502 { .name
= "reset", .gpio
= 1 << 5 },
505 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
506 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
507 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= REVERSE
},
508 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
514 .name
= "Belkin (unknown)",
515 /* FIXME: verify & add detection */
517 { .name
= "reset", .gpio
= 1 << 7 },
520 { .name
= "power", .gpio
= 1 << 5, .polarity
= NORMAL
},
521 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= NORMAL
},
522 { .name
= "connected", .gpio
= 1 << 0, .polarity
= NORMAL
},
527 .name
= "Netgear WGT634U",
529 { .name
= "reset", .gpio
= 1 << 2 },
532 { .name
= "power", .gpio
= 1 << 3, .polarity
= NORMAL
},
537 .name
= "Trendware TEW411BRP+",
539 { /* No usable buttons */ },
542 { .name
= "power", .gpio
= 1 << 7, .polarity
= NORMAL
},
543 { .name
= "wlan", .gpio
= 1 << 1, .polarity
= NORMAL
},
544 { .name
= "bridge", .gpio
= 1 << 6, .polarity
= NORMAL
},
549 .name
= "SimpleTech SimpleShare NAS",
551 { .name
= "reset", .gpio
= 1 << 7 }, // on back, hardwired, always resets device regardless OS state
552 { .name
= "power", .gpio
= 1 << 0 }, // on back
555 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
}, // actual name ready
557 .platform_init
= bcm4780_init
,
561 .name
= "D-Link DIR-130",
563 { .name
= "reset", .gpio
= 1 << 3},
564 { .name
= "reserved", .gpio
= 1 << 7},
567 { .name
= "diag", .gpio
= 1 << 0},
568 { .name
= "blue", .gpio
= 1 << 6},
572 .name
= "D-Link DIR-330",
574 { .name
= "reset", .gpio
= 1 << 3},
575 { .name
= "reserved", .gpio
= 1 << 7},
578 { .name
= "diag", .gpio
= 1 << 0},
579 { .name
= "usb", .gpio
= 1 << 4},
580 { .name
= "blue", .gpio
= 1 << 6},
584 .name
= "D-Link DWL-3150",
586 { .name
= "reset", .gpio
= 1 << 7},
589 { .name
= "diag", .gpio
= 1 << 2},
590 { .name
= "status", .gpio
= 1 << 1},
595 static struct platform_t __init
*platform_detect(void)
597 char *boardnum
, *boardtype
, *buf
;
599 if (strcmp(getvar("nvram_type"), "cfe") == 0)
600 return &platforms
[WGT634U
];
602 /* Look for a model identifier */
604 /* Based on "model_name" */
605 if (buf
= nvram_get("model_name")) {
606 if (!strcmp(buf
, "DIR-130"))
607 return &platforms
[DIR130
];
608 if (!strcmp(buf
, "DIR-330"))
609 return &platforms
[DIR330
];
612 /* Based on "model_no" */
613 if (buf
= nvram_get("model_no")) {
614 if (!strncmp(buf
,"WL700", 5)) /* WL700* */
615 return &platforms
[WL700GE
];
618 /* Based on "ModelId" */
619 if (buf
= nvram_get("ModelId")) {
620 if (!strcmp(buf
, "WR850GP"))
621 return &platforms
[WR850GP
];
622 if (!strcmp(buf
,"WX-5565"))
623 return &platforms
[TM2300
];
624 if (!strncmp(buf
,"WE800G", 6)) /* WE800G* */
625 return &platforms
[WE800G
];
629 if ((buf
= (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
630 /* Buffalo hardware, check id for specific hardware matches */
631 if (!strcmp(buf
, "29bb0332"))
632 return &platforms
[WBR2_G54
];
633 if (!strcmp(buf
, "29129"))
634 return &platforms
[WLA2_G54L
];
635 if (!strcmp(buf
, "30189"))
636 return &platforms
[WHR_HP_G54
];
637 if (!strcmp(buf
, "30182"))
638 return &platforms
[WHR_G54S
];
639 if (!strcmp(buf
, "290441dd"))
640 return &platforms
[WHR2_A54G54
];
641 if (!strcmp(buf
, "31120"))
642 return &platforms
[WZR_G300N
];
643 if (!strcmp(buf
, "30083"))
644 return &platforms
[WZR_RS_G54
];
645 if (!strcmp(buf
, "30103"))
646 return &platforms
[WZR_RS_G54HP
];
649 /* no easy model number, attempt to guess */
650 boardnum
= getvar("boardnum");
651 boardtype
= getvar("boardtype");
653 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
654 /* CFE based - newer hardware */
655 if (!strcmp(boardnum
, "42")) { /* Linksys */
656 if (!strcmp(boardtype
, "0x478") && !strcmp(getvar("cardbus"), "1"))
657 return &platforms
[WRT350N
];
659 if (!strcmp(boardtype
, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
660 return &platforms
[WRT54G3G
];
662 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
663 return &platforms
[WRTSL54GS
];
665 /* default to WRT54G */
666 return &platforms
[WRT54G
];
669 if (!strcmp(boardnum
, "45")) { /* ASUS */
670 if (!strcmp(boardtype
,"0x042f"))
671 return &platforms
[WL500GP
];
672 else if (!strcmp(boardtype
,"0x0472"))
673 return &platforms
[WL500W
];
675 return &platforms
[WL500GD
];
678 if (!strcmp(boardnum
, "10496"))
679 return &platforms
[USR5461
];
681 } else { /* PMON based - old stuff */
682 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL
, 0) == 9) &&
683 (simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 30)) {
684 return &platforms
[WR850GV1
];
686 if (!strncmp(boardtype
, "bcm94710dev", 11)) {
687 if (!strcmp(boardnum
, "42"))
688 return &platforms
[WRT54GV1
];
689 if (simple_strtoul(boardnum
, NULL
, 0) == 2)
690 return &platforms
[WAP54GV1
];
692 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
693 return &platforms
[WL500G
];
694 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
695 /* Either WL-300g or WL-HDD, do more extensive checks */
696 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
697 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 1))
698 return &platforms
[WLHDD
];
699 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
700 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 10))
701 return &platforms
[WL300G
];
704 /* unknown asus stuff, probably bcm4702 */
705 if (!strncmp(boardnum
, "asusX", 5))
706 return &platforms
[ASUS_4702
];
709 if (buf
|| !strcmp(boardnum
, "00")) {/* probably buffalo */
710 if (!strncmp(boardtype
, "bcm94710ap", 10))
711 return &platforms
[BUFFALO_UNKNOWN_4710
];
713 return &platforms
[BUFFALO_UNKNOWN
];
716 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
717 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
719 return &platforms
[WR850GV2V3
];
722 if (!strcmp(boardnum
, "44")) { /* Trendware TEW-411BRP+ */
723 return &platforms
[TEW411BRPP
];
726 if (!strncmp(boardnum
, "04FN52", 6)) /* SimpleTech SimpleShare */
727 return &platforms
[STI_NAS
];
729 if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
730 return &platforms
[DWL3150
];
736 static void register_buttons(struct button_t
*b
)
739 platform
.button_mask
|= b
->gpio
;
741 platform
.button_mask
&= ~gpiomask
;
743 gpio_outen(platform
.button_mask
, 0);
744 gpio_control(platform
.button_mask
, 0);
745 platform
.button_polarity
= gpio_in() & platform
.button_mask
;
746 gpio_intpolarity(platform
.button_mask
, platform
.button_polarity
);
747 gpio_intmask(platform
.button_mask
, platform
.button_mask
);
749 gpio_set_irqenable(1, button_handler
);
752 static void unregister_buttons(struct button_t
*b
)
754 gpio_intmask(platform
.button_mask
, 0);
756 gpio_set_irqenable(0, button_handler
);
761 static void add_msg(struct event_t
*event
, char *msg
, int argv
)
768 s
= skb_put(event
->skb
, strlen(msg
) + 1);
772 static void hotplug_button(struct work_struct
*work
)
774 struct event_t
*event
= container_of(work
, struct event_t
, wq
);
780 event
->skb
= alloc_skb(2048, GFP_KERNEL
);
782 s
= skb_put(event
->skb
, strlen(event
->action
) + 2);
783 sprintf(s
, "%s@", event
->action
);
786 NETLINK_CB(event
->skb
).dst_group
= 1;
787 netlink_broadcast(uevent_sock
, event
->skb
, 0, 1, GFP_KERNEL
);
792 #else /* !LINUX_2_4 */
793 static inline char *kzalloc(unsigned int size
, unsigned int gfp
)
797 p
= kmalloc(size
, gfp
);
806 static void add_msg(struct event_t
*event
, char *msg
, int argv
)
809 event
->argv
[event
->anr
++] = event
->scratch
;
811 event
->envp
[event
->enr
++] = event
->scratch
;
813 event
->scratch
+= sprintf(event
->scratch
, "%s", msg
) + 1;
816 static void hotplug_button(struct event_t
*event
)
818 char *scratch
= kzalloc(256, GFP_KERNEL
);
819 event
->scratch
= scratch
;
821 add_msg(event
, hotplug_path
, 1);
822 add_msg(event
, "button", 1);
824 call_usermodehelper (event
->argv
[0], event
->argv
, event
->envp
);
828 #endif /* !LINUX_2_4 */
830 static int fill_event (struct event_t
*event
)
832 static char buf
[128];
834 add_msg(event
, "HOME=/", 0);
835 add_msg(event
, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
836 add_msg(event
, "SUBSYSTEM=button", 0);
837 snprintf(buf
, 128, "ACTION=%s", event
->action
);
838 add_msg(event
, buf
, 0);
839 snprintf(buf
, 128, "BUTTON=%s", event
->name
);
840 add_msg(event
, buf
, 0);
841 snprintf(buf
, 128, "SEEN=%ld", event
->seen
);
842 add_msg(event
, buf
, 0);
844 snprintf(buf
, 128, "SEQNUM=%llu", uevent_next_seqnum());
845 add_msg(event
, buf
, 0);
853 static irqreturn_t
button_handler(int irq
, void *dev_id
)
855 static irqreturn_t
button_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
861 in
= gpio_in() & platform
.button_mask
;
862 gpio_intpolarity(platform
.button_mask
, in
);
863 changed
= platform
.button_polarity
^ in
;
864 platform
.button_polarity
= in
;
866 changed
&= ~gpio_outen(0, 0);
868 for (b
= platform
.buttons
; b
->name
; b
++) {
869 struct event_t
*event
;
871 if (!(b
->gpio
& changed
)) continue;
875 if ((event
= (struct event_t
*)kzalloc (sizeof(struct event_t
), GFP_ATOMIC
))) {
876 event
->seen
= (jiffies
- b
->seen
)/HZ
;
877 event
->name
= b
->name
;
878 event
->action
= b
->pressed
? "pressed" : "released";
879 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
880 INIT_WORK(&event
->wq
, (void *)(void *)hotplug_button
);
882 INIT_WORK(&event
->wq
, (void *)(void *)hotplug_button
, (void *)event
);
884 schedule_work(&event
->wq
);
892 static void register_leds(struct led_t
*l
)
894 struct proc_dir_entry
*p
;
899 leds
= proc_mkdir("led", diag
);
903 for(; l
->name
; l
++) {
904 if (l
->gpio
& gpiomask
)
907 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
911 if (l
->polarity
!= INPUT
) oe_mask
!= l
->gpio
;
913 val
|= (l
->polarity
== NORMAL
)?0:l
->gpio
;
916 if (l
->polarity
== INPUT
) continue;
918 if ((p
= create_proc_entry(l
->name
, S_IRUSR
, leds
))) {
919 l
->proc
.type
= PROC_LED
;
921 p
->data
= (void *) &l
->proc
;
922 p
->proc_fops
= &diag_proc_fops
;
926 gpio_outen(mask
, oe_mask
);
927 gpio_control(mask
, 0);
931 static void unregister_leds(struct led_t
*l
)
934 remove_proc_entry(l
->name
, leds
);
936 remove_proc_entry("led", diag
);
939 static void set_led_extif(struct led_t
*led
)
941 gpio_set_extif(led
->gpio
, led
->state
);
944 static void led_flash(unsigned long dummy
) {
949 for (l
= platform
.leds
; l
->name
; l
++) {
951 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
953 l
->state
= !l
->state
;
963 u32 val
= ~gpio_in();
965 gpio_outen(mask
, mask
);
966 gpio_control(mask
, 0);
969 if (mask
|| extif_blink
) {
970 mod_timer(&led_timer
, jiffies
+ FLASH_TIME
);
974 static ssize_t
diag_proc_read(struct file
*file
, char *buf
, size_t count
, loff_t
*ppos
)
977 struct inode
*inode
= file
->f_dentry
->d_inode
;
978 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
980 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
985 if ((page
= kmalloc(1024, GFP_KERNEL
)) == NULL
)
988 if (dent
->data
!= NULL
) {
989 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
990 switch (handler
->type
) {
992 struct led_t
* led
= (struct led_t
*) handler
->ptr
;
994 len
= sprintf(page
, "f\n");
996 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
997 len
= sprintf(page
, "%d\n", led
->state
);
999 u32 in
= (gpio_in() & led
->gpio
? 1 : 0);
1000 u8 p
= (led
->polarity
== NORMAL
? 0 : 1);
1001 len
= sprintf(page
, "%d\n", ((in
^ p
) ? 1 : 0));
1007 len
= sprintf(page
, "%s\n", platform
.name
);
1010 len
= sprintf(page
, "0x%04x\n", gpiomask
);
1017 len
= min_t(int, len
- *ppos
, count
);
1018 if (copy_to_user(buf
, (page
+ *ppos
), len
)) {
1032 static ssize_t
diag_proc_write(struct file
*file
, const char *buf
, size_t count
, loff_t
*ppos
)
1035 struct inode
*inode
= file
->f_dentry
->d_inode
;
1036 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
1038 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
1043 if ((page
= kmalloc(count
+ 1, GFP_KERNEL
)) == NULL
)
1046 if (copy_from_user(page
, buf
, count
)) {
1052 if (dent
->data
!= NULL
) {
1053 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
1054 switch (handler
->type
) {
1056 struct led_t
*led
= (struct led_t
*) handler
->ptr
;
1057 int p
= (led
->polarity
== NORMAL
? 0 : 1);
1059 if (page
[0] == 'f') {
1064 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
1065 led
->state
= p
^ ((page
[0] == '1') ? 1 : 0);
1068 gpio_outen(led
->gpio
, led
->gpio
);
1069 gpio_control(led
->gpio
, 0);
1070 gpio_out(led
->gpio
, ((p
^ (page
[0] == '1')) ? led
->gpio
: 0));
1076 gpiomask
= simple_strtoul(page
, NULL
, 0);
1078 if (platform
.buttons
) {
1079 unregister_buttons(platform
.buttons
);
1080 register_buttons(platform
.buttons
);
1083 if (platform
.leds
) {
1084 unregister_leds(platform
.leds
);
1085 register_leds(platform
.leds
);
1096 static int __init
diag_init(void)
1098 static struct proc_dir_entry
*p
;
1099 static struct platform_t
*detected
;
1101 detected
= platform_detect();
1103 printk(MODULE_NAME
": Router model not detected.\n");
1106 memcpy(&platform
, detected
, sizeof(struct platform_t
));
1108 printk(MODULE_NAME
": Detected '%s'\n", platform
.name
);
1109 if (platform
.platform_init
!= NULL
) {
1110 platform
.platform_init();
1113 if (!(diag
= proc_mkdir("diag", NULL
))) {
1114 printk(MODULE_NAME
": proc_mkdir on /proc/diag failed\n");
1118 if ((p
= create_proc_entry("model", S_IRUSR
, diag
))) {
1119 p
->data
= (void *) &proc_model
;
1120 p
->proc_fops
= &diag_proc_fops
;
1123 if ((p
= create_proc_entry("gpiomask", S_IRUSR
| S_IWUSR
, diag
))) {
1124 p
->data
= (void *) &proc_gpiomask
;
1125 p
->proc_fops
= &diag_proc_fops
;
1128 if (platform
.buttons
)
1129 register_buttons(platform
.buttons
);
1132 register_leds(platform
.leds
);
1137 static void __exit
diag_exit(void)
1139 del_timer(&led_timer
);
1141 if (platform
.buttons
)
1142 unregister_buttons(platform
.buttons
);
1145 unregister_leds(platform
.leds
);
1147 remove_proc_entry("model", diag
);
1148 remove_proc_entry("gpiomask", diag
);
1149 remove_proc_entry("diag", NULL
);
1152 module_init(diag_init
);
1153 module_exit(diag_exit
);
1155 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1156 MODULE_LICENSE("GPL");