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);
99 static struct platform_t __initdata platforms
[] = {
102 .name
= "Linksys WAP54G V1",
104 { .name
= "reset", .gpio
= 1 << 0 },
107 { .name
= "diag", .gpio
= 1 << 3 },
108 { .name
= "wlan", .gpio
= 1 << 4 },
112 .name
= "Linksys WAP54G V3",
114 /* FIXME: verify this */
115 { .name
= "reset", .gpio
= 1 << 7 },
116 { .name
= "ses", .gpio
= 1 << 0 },
120 { .name
= "ses", .gpio
= 1 << 1 },
124 .name
= "Linksys WRT54G V1.x",
126 { .name
= "reset", .gpio
= 1 << 6 },
129 { .name
= "diag", .gpio
= 0x13 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
130 { .name
= "dmz", .gpio
= 0x12 | GPIO_TYPE_EXTIF
, .polarity
= NORMAL
},
134 .name
= "Linksys WRT54G/GS/GL",
136 { .name
= "reset", .gpio
= 1 << 6 },
137 { .name
= "ses", .gpio
= 1 << 4 },
140 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
141 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
142 { .name
= "ses_white", .gpio
= 1 << 2, .polarity
= REVERSE
},
143 { .name
= "ses_orange", .gpio
= 1 << 3, .polarity
= REVERSE
},
144 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
148 .name
= "Linksys WRTSL54GS",
150 { .name
= "reset", .gpio
= 1 << 6 },
151 { .name
= "ses", .gpio
= 1 << 4 },
154 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
155 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
156 { .name
= "ses_white", .gpio
= 1 << 5, .polarity
= REVERSE
},
157 { .name
= "ses_orange", .gpio
= 1 << 7, .polarity
= REVERSE
},
161 .name
= "Linksys WRT54G3G",
163 { .name
= "reset", .gpio
= 1 << 6 },
164 { .name
= "3g", .gpio
= 1 << 4 },
167 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
168 { .name
= "dmz", .gpio
= 1 << 7, .polarity
= REVERSE
},
169 { .name
= "3g_green", .gpio
= 1 << 2, .polarity
= NORMAL
},
170 { .name
= "3g_blue", .gpio
= 1 << 3, .polarity
= NORMAL
},
171 { .name
= "3g_blink", .gpio
= 1 << 5, .polarity
= NORMAL
},
176 .name
= "ASUS WL-HDD",
178 { .name
= "reset", .gpio
= 1 << 6 },
181 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
185 .name
= "ASUS WL-300g",
187 { .name
= "reset", .gpio
= 1 << 6 },
190 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
194 .name
= "ASUS WL-500g",
196 { .name
= "reset", .gpio
= 1 << 6 },
199 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
203 .name
= "ASUS WL-500g Deluxe",
205 { .name
= "reset", .gpio
= 1 << 6 },
208 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
212 .name
= "ASUS WL-500g Premium",
214 { .name
= "reset", .gpio
= 1 << 0 },
215 { .name
= "ses", .gpio
= 1 << 4 },
218 { .name
= "power", .gpio
= 1 << 1, .polarity
= REVERSE
},
222 .name
= "ASUS (unknown, BCM4702)",
224 { .name
= "reset", .gpio
= 1 << 6 },
227 { .name
= "power", .gpio
= 1 << 0, .polarity
= REVERSE
},
232 .name
= "Buffalo WHR-G54S",
234 { .name
= "reset", .gpio
= 1 << 4 },
235 { .name
= "bridge", .gpio
= 1 << 5 },
236 { .name
= "ses", .gpio
= 1 << 0 },
239 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
240 { .name
= "internal", .gpio
= 1 << 3, .polarity
= REVERSE
},
241 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
242 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
246 .name
= "Buffalo WBR2-G54",
249 { .name
= "reset", .gpio
= 1 << 7 },
252 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
256 .name
= "Buffalo WHR-HP-G54",
258 { .name
= "reset", .gpio
= 1 << 4 },
259 { .name
= "bridge", .gpio
= 1 << 5 },
260 { .name
= "ses", .gpio
= 1 << 0 },
263 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
264 { .name
= "bridge", .gpio
= 1 << 1, .polarity
= REVERSE
},
265 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
269 .name
= "Buffalo WHR2-A54G54",
271 { .name
= "reset", .gpio
= 1 << 4 },
274 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
278 .name
= "Buffalo WLA2-G54L",
281 { .name
= "reset", .gpio
= 1 << 7 },
284 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
288 .name
= "Buffalo WZR-RS-G54",
290 { .name
= "ses", .gpio
= 1 << 0 },
291 { .name
= "reset", .gpio
= 1 << 4 },
294 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
295 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
296 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
300 .name
= "Buffalo WZR-RS-G54HP",
302 { .name
= "ses", .gpio
= 1 << 0 },
303 { .name
= "reset", .gpio
= 1 << 4 },
306 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
307 { .name
= "ses", .gpio
= 1 << 6, .polarity
= REVERSE
},
308 { .name
= "vpn", .gpio
= 1 << 1, .polarity
= REVERSE
},
311 [BUFFALO_UNKNOWN
] = {
312 .name
= "Buffalo (unknown)",
314 { .name
= "reset", .gpio
= 1 << 7 },
317 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
320 [BUFFALO_UNKNOWN_4710
] = {
321 .name
= "Buffalo (unknown, BCM4710)",
323 { .name
= "reset", .gpio
= 1 << 4 },
326 { .name
= "diag", .gpio
= 1 << 1, .polarity
= REVERSE
},
331 .name
= "Siemens SE505 V1",
333 /* No usable buttons */
336 { .name
= "dmz", .gpio
= 1 << 4, .polarity
= REVERSE
},
337 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
341 .name
= "Siemens SE505 V2",
343 /* No usable buttons */
346 { .name
= "power", .gpio
= 1 << 5, .polarity
= REVERSE
},
347 { .name
= "dmz", .gpio
= 1 << 0, .polarity
= REVERSE
},
348 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= REVERSE
},
353 .name
= "U.S. Robotics USR5461",
355 /* No usable buttons */
358 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
359 { .name
= "printer", .gpio
= 1 << 1, .polarity
= REVERSE
},
364 .name
= "Dell TrueMobile 2300",
366 { .name
= "reset", .gpio
= 1 << 0 },
369 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
374 .name
= "Motorola WE800G",
376 { .name
= "reset", .gpio
= 1 << 0 },
379 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
380 { .name
= "diag", .gpio
= 1 << 2, .polarity
= REVERSE
},
381 { .name
= "wlan_amber", .gpio
= 1 << 1, .polarity
= NORMAL
},
385 .name
= "Motorola WR850G V1",
387 { .name
= "reset", .gpio
= 1 << 0 },
390 { .name
= "power", .gpio
= 1 << 4, .polarity
= NORMAL
},
391 { .name
= "diag", .gpio
= 1 << 3, .polarity
= REVERSE
},
392 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= NORMAL
},
393 { .name
= "wlan_red", .gpio
= 1 << 5, .polarity
= REVERSE
},
394 { .name
= "wlan_green", .gpio
= 1 << 7, .polarity
= REVERSE
},
398 .name
= "Motorola WR850G V2/V3",
400 { .name
= "reset", .gpio
= 1 << 5 },
403 { .name
= "power", .gpio
= 1 << 1, .polarity
= NORMAL
},
404 { .name
= "wlan", .gpio
= 1 << 0, .polarity
= REVERSE
},
405 { .name
= "dmz", .gpio
= 1 << 6, .polarity
= REVERSE
},
406 { .name
= "diag", .gpio
= 1 << 7, .polarity
= REVERSE
},
411 .name
= "Belkin (unknown)",
412 /* FIXME: verify & add detection */
414 { .name
= "reset", .gpio
= 1 << 7 },
417 { .name
= "power", .gpio
= 1 << 5, .polarity
= NORMAL
},
418 { .name
= "wlan", .gpio
= 1 << 3, .polarity
= NORMAL
},
419 { .name
= "connected", .gpio
= 1 << 0, .polarity
= NORMAL
},
424 .name
= "Trendware TEW411BRP+",
426 { /* No usable buttons */ },
429 { .name
= "power", .gpio
= 1 << 7, .polarity
= NORMAL
},
430 { .name
= "wlan", .gpio
= 1 << 1, .polarity
= NORMAL
},
431 { .name
= "bridge", .gpio
= 1 << 6, .polarity
= NORMAL
},
436 static struct platform_t __init
*platform_detect(void)
438 char *boardnum
, *boardtype
, *buf
;
440 boardnum
= getvar("boardnum");
441 boardtype
= getvar("boardtype");
442 if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
443 /* CFE based - newer hardware */
444 if (!strcmp(boardnum
, "42")) { /* Linksys */
445 if (!strcmp(boardtype
, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
446 return &platforms
[WRT54G3G
];
448 if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
449 return &platforms
[WRTSL54GS
];
451 /* default to WRT54G */
452 return &platforms
[WRT54G
];
455 if (!strcmp(boardnum
, "45")) { /* ASUS */
456 if (!strcmp(boardtype
,"0x042f"))
457 return &platforms
[WL500GP
];
459 return &platforms
[WL500GD
];
462 if (!strcmp(boardnum
, "10496"))
463 return &platforms
[USR5461
];
464 } else { /* PMON based - old stuff */
465 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL
, 0) == 9) &&
466 (simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 30)) {
467 if (!strncmp(getvar("ModelId"),"WE800G", 6))
468 return &platforms
[WE800G
];
470 return &platforms
[WR850GV1
];
472 if (!strncmp(boardtype
, "bcm94710dev", 11)) {
473 if (!strcmp(boardnum
, "42"))
474 return &platforms
[WRT54GV1
];
475 if (simple_strtoul(boardnum
, NULL
, 0) == 2)
476 return &platforms
[WAP54GV1
];
478 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
479 return &platforms
[WL500G
];
480 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
481 /* Either WL-300g or WL-HDD, do more extensive checks */
482 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
483 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 1))
484 return &platforms
[WLHDD
];
485 if ((simple_strtoul(getvar("et0phyaddr"), NULL
, 0) == 0) &&
486 (simple_strtoul(getvar("et1phyaddr"), NULL
, 0) == 10))
487 return &platforms
[WL300G
];
490 /* unknown asus stuff, probably bcm4702 */
491 if (!strncmp(boardnum
, "asusX", 5))
492 return &platforms
[ASUS_4702
];
495 if ((buf
= (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
496 /* Buffalo hardware, check id for specific hardware matches */
497 if (!strcmp(buf
, "29bb0332"))
498 return &platforms
[WBR2_G54
];
499 if (!strcmp(buf
, "29129"))
500 return &platforms
[WLA2_G54L
];
501 if (!strcmp(buf
, "30189"))
502 return &platforms
[WHR_HP_G54
];
503 if (!strcmp(buf
, "30182"))
504 return &platforms
[WHR_G54S
];
505 if (!strcmp(buf
, "290441dd"))
506 return &platforms
[WHR2_A54G54
];
507 if (!strcmp(buf
, "30083"))
508 return &platforms
[WZR_RS_G54
];
509 if (!strcmp(buf
, "30103"))
510 return &platforms
[WZR_RS_G54HP
];
513 if (buf
|| !strcmp(boardnum
, "00")) {/* probably buffalo */
514 if (!strncmp(boardtype
, "bcm94710ap", 10))
515 return &platforms
[BUFFALO_UNKNOWN_4710
];
517 return &platforms
[BUFFALO_UNKNOWN
];
521 if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
522 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
524 return &platforms
[WR850GV2V3
];
527 if (!strcmp(boardnum
, "44")) { /* Trendware TEW-411BRP+ */
528 return &platforms
[TEW411BRPP
];
535 static void register_buttons(struct button_t
*b
)
538 platform
.button_mask
|= b
->gpio
;
540 platform
.button_mask
&= ~gpiomask
;
542 gpio_outen(platform
.button_mask
, 0);
543 gpio_control(platform
.button_mask
, 0);
544 platform
.button_polarity
= gpio_in() & platform
.button_mask
;
545 gpio_intpolarity(platform
.button_mask
, platform
.button_polarity
);
546 gpio_intmask(platform
.button_mask
, platform
.button_mask
);
548 gpio_set_irqenable(1, button_handler
);
551 static void unregister_buttons(struct button_t
*b
)
553 gpio_intmask(platform
.button_mask
, 0);
555 gpio_set_irqenable(0, button_handler
);
558 static void hotplug_button(struct event_t
*event
)
560 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
561 call_usermodehelper (event
->argv
[0], event
->argv
, event
->envp
, 1);
563 call_usermodehelper (event
->argv
[0], event
->argv
, event
->envp
);
568 static irqreturn_t
button_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
573 in
= gpio_in() & platform
.button_mask
;
574 gpio_intpolarity(platform
.button_mask
, in
);
575 changed
= platform
.button_polarity
^ in
;
576 platform
.button_polarity
= in
;
578 changed
&= ~gpio_outen(0, 0);
580 for (b
= platform
.buttons
; b
->name
; b
++) {
581 struct event_t
*event
;
583 if (!(b
->gpio
& changed
)) continue;
587 if ((event
= (struct event_t
*)kmalloc (sizeof(struct event_t
), GFP_ATOMIC
))) {
589 char *scratch
= event
->buf
;
592 event
->argv
[i
++] = hotplug_path
;
593 event
->argv
[i
++] = "button";
597 event
->envp
[i
++] = "HOME=/";
598 event
->envp
[i
++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
599 event
->envp
[i
++] = scratch
;
600 scratch
+= sprintf (scratch
, "ACTION=%s", b
->pressed
?"pressed":"released") + 1;
601 event
->envp
[i
++] = scratch
;
602 scratch
+= sprintf (scratch
, "BUTTON=%s", b
->name
) + 1;
603 event
->envp
[i
++] = scratch
;
604 scratch
+= sprintf (scratch
, "SEEN=%ld", (jiffies
- b
->seen
)/HZ
) + 1;
607 INIT_WORK(&event
->wq
, (void *)(void *)hotplug_button
, (void *)event
);
608 schedule_work(&event
->wq
);
616 static void register_leds(struct led_t
*l
)
618 struct proc_dir_entry
*p
;
622 leds
= proc_mkdir("led", diag
);
626 for(; l
->name
; l
++) {
627 if (l
->gpio
& gpiomask
)
630 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
635 val
|= (l
->polarity
== NORMAL
)?0:l
->gpio
;
638 if ((p
= create_proc_entry(l
->name
, S_IRUSR
, leds
))) {
639 l
->proc
.type
= PROC_LED
;
641 p
->data
= (void *) &l
->proc
;
642 p
->proc_fops
= &diag_proc_fops
;
646 gpio_outen(mask
, mask
);
647 gpio_control(mask
, 0);
651 static void unregister_leds(struct led_t
*l
)
654 remove_proc_entry(l
->name
, leds
);
656 remove_proc_entry("led", diag
);
659 static void set_led_extif(struct led_t
*led
)
661 gpio_set_extif(led
->gpio
, led
->state
);
664 static void led_flash(unsigned long dummy
) {
669 for (l
= platform
.leds
; l
->name
; l
++) {
671 if (l
->gpio
& GPIO_TYPE_EXTIF
) {
673 l
->state
= !l
->state
;
683 u32 val
= ~gpio_in();
685 gpio_outen(mask
, mask
);
686 gpio_control(mask
, 0);
689 if (mask
|| extif_blink
) {
690 mod_timer(&led_timer
, jiffies
+ FLASH_TIME
);
694 static ssize_t
diag_proc_read(struct file
*file
, char *buf
, size_t count
, loff_t
*ppos
)
697 struct inode
*inode
= file
->f_dentry
->d_inode
;
698 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
700 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
705 if ((page
= kmalloc(1024, GFP_KERNEL
)) == NULL
)
708 if (dent
->data
!= NULL
) {
709 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
710 switch (handler
->type
) {
712 struct led_t
* led
= (struct led_t
*) handler
->ptr
;
714 len
= sprintf(page
, "f\n");
716 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
717 len
= sprintf(page
, "%d\n", led
->state
);
719 u32 in
= (gpio_in() & led
->gpio
? 1 : 0);
720 u8 p
= (led
->polarity
== NORMAL
? 0 : 1);
721 len
= sprintf(page
, "%d\n", ((in
^ p
) ? 1 : 0));
727 len
= sprintf(page
, "%s\n", platform
.name
);
730 len
= sprintf(page
, "0x%04x\n", gpiomask
);
737 len
= min_t(int, len
- *ppos
, count
);
738 if (copy_to_user(buf
, (page
+ *ppos
), len
)) {
751 static ssize_t
diag_proc_write(struct file
*file
, const char *buf
, size_t count
, loff_t
*ppos
)
754 struct inode
*inode
= file
->f_dentry
->d_inode
;
755 struct proc_dir_entry
*dent
= inode
->u
.generic_ip
;
757 struct proc_dir_entry
*dent
= PDE(file
->f_dentry
->d_inode
);
762 if ((page
= kmalloc(count
+ 1, GFP_KERNEL
)) == NULL
)
765 if (copy_from_user(page
, buf
, count
)) {
771 if (dent
->data
!= NULL
) {
772 struct prochandler_t
*handler
= (struct prochandler_t
*) dent
->data
;
773 switch (handler
->type
) {
775 struct led_t
*led
= (struct led_t
*) handler
->ptr
;
776 int p
= (led
->polarity
== NORMAL
? 0 : 1);
778 if (page
[0] == 'f') {
783 if (led
->gpio
& GPIO_TYPE_EXTIF
) {
784 led
->state
= p
^ ((page
[0] == '1') ? 1 : 0);
787 gpio_outen(led
->gpio
, led
->gpio
);
788 gpio_control(led
->gpio
, 0);
789 gpio_out(led
->gpio
, ((p
^ (page
[0] == '1')) ? led
->gpio
: 0));
795 gpiomask
= simple_strtoul(page
, NULL
, 0);
797 if (platform
.buttons
) {
798 unregister_buttons(platform
.buttons
);
799 register_buttons(platform
.buttons
);
803 unregister_leds(platform
.leds
);
804 register_leds(platform
.leds
);
815 static int __init
diag_init(void)
817 static struct proc_dir_entry
*p
;
818 static struct platform_t
*detected
;
820 detected
= platform_detect();
822 printk(MODULE_NAME
": Router model not detected.\n");
825 memcpy(&platform
, detected
, sizeof(struct platform_t
));
827 printk(MODULE_NAME
": Detected '%s'\n", platform
.name
);
829 if (!(diag
= proc_mkdir("diag", NULL
))) {
830 printk(MODULE_NAME
": proc_mkdir on /proc/diag failed\n");
834 if ((p
= create_proc_entry("model", S_IRUSR
, diag
))) {
835 p
->data
= (void *) &proc_model
;
836 p
->proc_fops
= &diag_proc_fops
;
839 if ((p
= create_proc_entry("gpiomask", S_IRUSR
| S_IWUSR
, diag
))) {
840 p
->data
= (void *) &proc_gpiomask
;
841 p
->proc_fops
= &diag_proc_fops
;
844 if (platform
.buttons
)
845 register_buttons(platform
.buttons
);
848 register_leds(platform
.leds
);
853 static void __exit
diag_exit(void)
856 del_timer(&led_timer
);
858 if (platform
.buttons
)
859 unregister_buttons(platform
.buttons
);
862 unregister_leds(platform
.leds
);
864 remove_proc_entry("model", diag
);
865 remove_proc_entry("gpiomask", diag
);
866 remove_proc_entry("diag", NULL
);
869 module_init(diag_init
);
870 module_exit(diag_exit
);
872 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
873 MODULE_LICENSE("GPL");