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  * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org>
   6  * Copyright (C) 2008 Andy Boyett <agb@openwrt.org>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * $Id$
  23  */
  24 #include <linux/module.h>
  25 #include <linux/pci.h>
  26 #include <linux/kmod.h>
  27 #include <linux/proc_fs.h>
  28 #include <linux/timer.h>
  29 #include <linux/version.h>
  30 #include <asm/uaccess.h>
  31
  32 #ifndef LINUX_2_4
  33 #include <linux/workqueue.h>
  34 #include <linux/skbuff.h>
  35 #include <linux/netlink.h>
  36 #include <net/sock.h>
  37 extern struct sock *uevent_sock;
  38 extern u64 uevent_next_seqnum(void);
  39 #else
  40 #include <linux/tqueue.h>
  41 #define INIT_WORK INIT_TQUEUE
  42 #define schedule_work schedule_task
  43 #define work_struct tq_struct
  44 #endif
  45
  46 #include "gpio.h"
  47 #include "diag.h"
  48 #define getvar(str) (nvram_get(str)?:"")
  49
  50 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  51 static int fill_event(struct event_t *);
  52 static unsigned int gpiomask = 0;
  53 module_param(gpiomask, int, 0644);
  54
  55 enum {
  56         /* Linksys */
  57         WAP54GV1,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT350N,
  64         WRT600N,
  65         WRT600NV11,
  66
  67         /* ASUS */
  68         WLHDD,
  69         WL300G,
  70         WL320GE,
  71         WL500G,
  72         WL500GD,
  73         WL500GP,
  74         WL500GPV2,
  75         WL500W,
  76         WL520GC,
  77         WL520GU,
  78         ASUS_4702,
  79         WL700GE,
  80
  81         /* Buffalo */
  82         WBR2_G54,
  83         WHR_G54S,
  84         WHR_HP_G54,
  85         WHR_G125,
  86         WHR2_A54G54,
  87         WLA2_G54L,
  88         WZR_G300N,
  89         WZR_RS_G54,
  90         WZR_RS_G54HP,
  91         BUFFALO_UNKNOWN,
  92         BUFFALO_UNKNOWN_4710,
  93
  94         /* Siemens */
  95         SE505V1,
  96         SE505V2,
  97
  98         /* US Robotics */
  99         USR5461,
 100
 101         /* Dell */
 102         TM2300,
 103         TM2300V2,
 104
 105         /* Motorola */
 106         WE800G,
 107         WR850GV1,
 108         WR850GV2V3,
 109         WR850GP,
 110
 111         /* Belkin */
 112         BELKIN_UNKNOWN,
 113
 114         /* Netgear */
 115         WGT634U,
 116
 117         /* Trendware */
 118         TEW411BRPP,
 119
 120         /* SimpleTech */
 121         STI_NAS,
 122
 123         /* D-Link */
 124         DIR130,
 125         DIR330,
 126         DWL3150,
 127
 128         /* Sitecom */
 129         WL105B,
 130 };
 131
 132 static void __init bcm4780_init(void) {
 133                 int pin = 1 << 3;
 134
 135                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 136                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 137                 gpio_outen(pin, pin);
 138                 gpio_control(pin, 0);
 139                 gpio_out(pin, pin);
 140
 141                 /* Wait 5s, so the HDD can spin up */
 142                 set_current_state(TASK_INTERRUPTIBLE);
 143                 schedule_timeout(HZ * 5);
 144 }
 145
 146 static void __init bcm57xx_init(void) {
 147         int pin = 1 << 2;
 148
 149 #ifndef LINUX_2_4
 150         /* FIXME: switch comes up, but port mappings/vlans not right */
 151         gpio_outen(pin, pin);
 152         gpio_control(pin, 0);
 153         gpio_out(pin, pin);
 154 #endif
 155 }
 156
 157 static struct platform_t __initdata platforms[] = {
 158         /* Linksys */
 159         [WAP54GV1] = {
 160                 .name           = "Linksys WAP54G V1",
 161                 .buttons        = {
 162                         { .name = "reset",      .gpio = 1 << 0 },
 163                 },
 164                 .leds           = {
 165                         { .name = "diag",       .gpio = 1 << 3 },
 166                         { .name = "wlan",       .gpio = 1 << 4 },
 167                 },
 168         },
 169         [WAP54GV3] = {
 170                 .name           = "Linksys WAP54G V3",
 171                 .buttons        = {
 172                         /* FIXME: verify this */
 173                         { .name = "reset",      .gpio = 1 << 7 },
 174                         { .name = "ses",        .gpio = 1 << 0 },
 175                 },
 176                 .leds           = {
 177                         /* FIXME: diag? */
 178                         { .name = "ses",        .gpio = 1 << 1 },
 179                 },
 180         },
 181         [WRT54GV1] = {
 182                 .name           = "Linksys WRT54G V1.x",
 183                 .buttons        = {
 184                         { .name = "reset",      .gpio = 1 << 6 },
 185                 },
 186                 .leds           = {
 187                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 188                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 189                 },
 190         },
 191         [WRT54G] = {
 192                 .name           = "Linksys WRT54G/GS/GL",
 193                 .buttons        = {
 194                         { .name = "reset",      .gpio = 1 << 6 },
 195                         { .name = "ses",        .gpio = 1 << 4 },
 196                 },
 197                 .leds           = {
 198                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 199                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 200                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 201                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 202                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 203                 },
 204         },
 205         [WRTSL54GS] = {
 206                 .name           = "Linksys WRTSL54GS",
 207                 .buttons        = {
 208                         { .name = "reset",      .gpio = 1 << 6 },
 209                         { .name = "ses",        .gpio = 1 << 4 },
 210                 },
 211                 .leds           = {
 212                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 213                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 214                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 215                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 216                 },
 217         },
 218         [WRT54G3G] = {
 219                 .name           = "Linksys WRT54G3G",
 220                 .buttons        = {
 221                         { .name = "reset",      .gpio = 1 << 6 },
 222                         { .name = "3g",         .gpio = 1 << 4 },
 223                 },
 224                 .leds           = {
 225                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 226                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 227                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 228                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 229                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 230                 },
 231         },
 232         [WRT350N] = {
 233                 .name           = "Linksys WRT350N",
 234                 .buttons        = {
 235                         { .name = "reset",      .gpio = 1 << 6 },
 236                         { .name = "ses",        .gpio = 1 << 8 },
 237                 },
 238                 .leds           = {
 239                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 240                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 241                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 242                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 243                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 244                 },
 245                 .platform_init = bcm57xx_init,
 246         },
 247         [WRT600N] = {
 248                 .name           = "Linksys WRT600N",
 249                 .buttons        = {
 250                         { .name = "reset",      .gpio = 1 << 6 },
 251                         { .name = "ses",        .gpio = 1 << 7 },
 252                 },
 253                 .leds           = {
 254                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 255                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 256                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 257                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 258                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 259                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 260                 },
 261                 .platform_init = bcm57xx_init,
 262         },
 263         [WRT600NV11] = {
 264                 .name           = "Linksys WRT600N V1.1",
 265                 .buttons        = {
 266                         { .name = "reset",      .gpio = 1 << 6 },
 267                         { .name = "ses",        .gpio = 1 << 7 },
 268                 },
 269                 .leds           = {
 270                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 271                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 272                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 273                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 274                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 275                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 276                 },
 277                 .platform_init = bcm57xx_init,
 278         },
 279         /* Asus */
 280         [WLHDD] = {
 281                 .name           = "ASUS WL-HDD",
 282                 .buttons        = {
 283                         { .name = "reset",      .gpio = 1 << 6 },
 284                 },
 285                 .leds           = {
 286                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 287                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 288                 },
 289         },
 290         [WL300G] = {
 291                 .name           = "ASUS WL-300g",
 292                 .buttons        = {
 293                         { .name = "reset",      .gpio = 1 << 6 },
 294                 },
 295                 .leds           = {
 296                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 297                 },
 298         },
 299         [WL320GE] = {
 300                 .name           = "ASUS WL-320gE/WL-320gP",
 301                 .buttons        = {
 302                         { .name = "reset",      .gpio = 1 << 6 },
 303                 },
 304                 .leds           = {
 305                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 306                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 307                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 308                 },
 309         },
 310         [WL500G] = {
 311                 .name           = "ASUS WL-500g",
 312                 .buttons        = {
 313                         { .name = "reset",      .gpio = 1 << 6 },
 314                 },
 315                 .leds           = {
 316                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 317                 },
 318         },
 319         [WL500GD] = {
 320                 .name           = "ASUS WL-500g Deluxe",
 321                 .buttons        = {
 322                         { .name = "reset",      .gpio = 1 << 6 },
 323                 },
 324                 .leds           = {
 325                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 326                 },
 327         },
 328         [WL500GP] = {
 329                 .name           = "ASUS WL-500g Premium",
 330                 .buttons        = {
 331                         { .name = "reset",      .gpio = 1 << 0 },
 332                         { .name = "ses",        .gpio = 1 << 4 },
 333                 },
 334                 .leds           = {
 335                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 336                 },
 337         },
 338         [WL500GPV2] = {
 339                 .name           = "ASUS WL-500g Premium V2",
 340                 .buttons        = {
 341                         { .name = "reset",      .gpio = 1 << 2 },
 342                         { .name = "ses",        .gpio = 1 << 3 },
 343                 },
 344                 .leds           = {
 345                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 346                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 347                 },
 348         },
 349         [WL500W] = {
 350                 .name           = "ASUS WL-500W",
 351                 .buttons        = {
 352                         { .name = "reset",      .gpio = 1 << 6 },
 353                         { .name = "ses",        .gpio = 1 << 7 },
 354                 },
 355                 .leds           = {
 356                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 357                 },
 358         },
 359         [WL520GC] = {
 360                 .name           = "ASUS WL-520GC",
 361                 .buttons        = {
 362                         { .name = "reset",      .gpio = 1 << 2 },
 363                         { .name = "ses",        .gpio = 1 << 3 },
 364                 },
 365                 .leds           = {
 366                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 367                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 368                 },
 369         },
 370         [WL520GU] = {
 371                 .name           = "ASUS WL-520gU",
 372                 .buttons        = {
 373                         { .name = "reset",      .gpio = 1 << 2 },
 374                         { .name = "ses",        .gpio = 1 << 3 },
 375                 },
 376                 .leds           = {
 377                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 378                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 379                 },
 380         },
 381         [ASUS_4702] = {
 382                 .name           = "ASUS (unknown, BCM4702)",
 383                 .buttons        = {
 384                         { .name = "reset",      .gpio = 1 << 6 },
 385                 },
 386                 .leds           = {
 387                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 388                 },
 389         },
 390         [WL700GE] = {
 391                 .name           = "ASUS WL-700gE",
 392                 .buttons        = {
 393                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 394                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 395                         { .name = "power",      .gpio = 1 << 0 }, // on front
 396                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 397                 },
 398                 .leds           = {
 399 #if 0
 400                         // GPIO that controls power led also enables/disables some essential functions
 401                         // - power to HDD
 402                         // - switch leds
 403                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 404 #endif
 405                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 406                 },
 407                 .platform_init = bcm4780_init,
 408         },
 409         /* Buffalo */
 410         [WHR_G54S] = {
 411                 .name           = "Buffalo WHR-G54S",
 412                 .buttons        = {
 413                         { .name = "reset",      .gpio = 1 << 4 },
 414                         { .name = "bridge",     .gpio = 1 << 5 },
 415                         { .name = "ses",        .gpio = 1 << 0 },
 416                 },
 417                 .leds           = {
 418                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 419                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 420                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 421                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 422                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 423                 },
 424         },
 425         [WBR2_G54] = {
 426                 .name           = "Buffalo WBR2-G54",
 427                 /* FIXME: verify */
 428                 .buttons        = {
 429                         { .name = "reset",      .gpio = 1 << 7 },
 430                 },
 431                 .leds           = {
 432                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 433                 },
 434         },
 435         [WHR_HP_G54] = {
 436                 .name           = "Buffalo WHR-HP-G54",
 437                 .buttons        = {
 438                         { .name = "reset",      .gpio = 1 << 4 },
 439                         { .name = "bridge",     .gpio = 1 << 5 },
 440                         { .name = "ses",        .gpio = 1 << 0 },
 441                 },
 442                 .leds           = {
 443                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 444                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 445                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 446                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 447                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 448                 },
 449         },
 450         [WHR_G125] = {
 451                 .name           = "Buffalo WHR-G125",
 452                 .buttons        = {
 453                         { .name = "reset",      .gpio = 1 << 4 },
 454                         { .name = "bridge",     .gpio = 1 << 5 },
 455                         { .name = "ses",        .gpio = 1 << 0 },
 456                 },
 457                 .leds           = {
 458                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 459                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 460                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 461                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 462                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 463                 },
 464         },
 465         [WHR2_A54G54] = {
 466                 .name           = "Buffalo WHR2-A54G54",
 467                 .buttons        = {
 468                         { .name = "reset",      .gpio = 1 << 4 },
 469                 },
 470                 .leds           = {
 471                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 472                 },
 473         },
 474         [WLA2_G54L] = {
 475                 .name           = "Buffalo WLA2-G54L",
 476                 /* FIXME: verify */
 477                 .buttons        = {
 478                         { .name = "reset",      .gpio = 1 << 7 },
 479                 },
 480                 .leds           = {
 481                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 482                 },
 483         },
 484         [WZR_G300N] = {
 485                 .name           = "Buffalo WZR-G300N",
 486                 .buttons        = {
 487                         { .name = "reset",      .gpio = 1 << 4 },
 488                 },
 489                 .leds           = {
 490                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 491                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 492                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 493                 },
 494         },
 495         [WZR_RS_G54] = {
 496                 .name           = "Buffalo WZR-RS-G54",
 497                 .buttons        = {
 498                         { .name = "ses",        .gpio = 1 << 0 },
 499                         { .name = "reset",      .gpio = 1 << 4 },
 500                 },
 501                 .leds           = {
 502                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 503                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 504                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 505                 },
 506         },
 507         [WZR_RS_G54HP] = {
 508                 .name           = "Buffalo WZR-RS-G54HP",
 509                 .buttons        = {
 510                         { .name = "ses",        .gpio = 1 << 0 },
 511                         { .name = "reset",      .gpio = 1 << 4 },
 512                 },
 513                 .leds           = {
 514                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 515                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 516                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 517                 },
 518         },
 519         [BUFFALO_UNKNOWN] = {
 520                 .name           = "Buffalo (unknown)",
 521                 .buttons        = {
 522                         { .name = "reset",      .gpio = 1 << 7 },
 523                 },
 524                 .leds           = {
 525                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 526                 },
 527         },
 528         [BUFFALO_UNKNOWN_4710] = {
 529                 .name           = "Buffalo (unknown, BCM4710)",
 530                 .buttons        = {
 531                         { .name = "reset",      .gpio = 1 << 4 },
 532                 },
 533                 .leds           = {
 534                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 535                 },
 536         },
 537         /* Siemens */
 538         [SE505V1] = {
 539                 .name           = "Siemens SE505 V1",
 540                 .buttons        = {
 541                         /* No usable buttons */
 542                 },
 543                 .leds           = {
 544 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 545                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 546                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 547                 },
 548         },
 549         [SE505V2] = {
 550                 .name           = "Siemens SE505 V2",
 551                 .buttons        = {
 552                         /* No usable buttons */
 553                 },
 554                 .leds           = {
 555                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 556                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 557                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 558                 },
 559         },
 560         /* US Robotics */
 561         [USR5461] = {
 562                 .name           = "U.S. Robotics USR5461",
 563                 .buttons        = {
 564                         /* No usable buttons */
 565                 },
 566                 .leds           = {
 567                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 568                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 569                 },
 570         },
 571         /* Dell */
 572         [TM2300] = {
 573                 .name           = "Dell TrueMobile 2300",
 574                 .buttons        = {
 575                         { .name = "reset",      .gpio = 1 << 0 },
 576                 },
 577                 .leds           = {
 578                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 579                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 580                 },
 581         },
 582         [TM2300V2] = {
 583                 .name           = "Dell TrueMobile 2300 v2",
 584                 .buttons        = {
 585                         { .name = "reset",      .gpio = 1 << 0 },
 586                 },
 587                 .leds           = {
 588                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 589                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 590                 },
 591         },
 592         /* Motorola */
 593         [WE800G] = {
 594                 .name           = "Motorola WE800G",
 595                 .buttons        = {
 596                         { .name = "reset",      .gpio = 1 << 0 },
 597                 },
 598                 .leds           = {
 599                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 600                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 601                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 602                 },
 603         },
 604         [WR850GV1] = {
 605                 .name           = "Motorola WR850G V1",
 606                 .buttons        = {
 607                         { .name = "reset",      .gpio = 1 << 0 },
 608                 },
 609                 .leds           = {
 610                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 611                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 612                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 613                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 614                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 615                 },
 616         },
 617         [WR850GV2V3] = {
 618                 .name           = "Motorola WR850G V2/V3",
 619                 .buttons        = {
 620                         { .name = "reset",      .gpio = 1 << 5 },
 621                 },
 622                 .leds           = {
 623                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 624                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 625                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 626                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 627                 },
 628         },
 629         [WR850GP] = {
 630                 .name           = "Motorola WR850GP",
 631                 .buttons        = {
 632                         { .name = "reset",      .gpio = 1 << 5 },
 633                 },
 634                 .leds           = {
 635                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 636                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 637                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 638                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 639                 },
 640         },
 641
 642         /* Belkin */
 643         [BELKIN_UNKNOWN] = {
 644                 .name           = "Belkin (unknown)",
 645                 /* FIXME: verify & add detection */
 646                 .buttons        = {
 647                         { .name = "reset",      .gpio = 1 << 7 },
 648                 },
 649                 .leds           = {
 650                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 651                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 652                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 653                 },
 654         },
 655         /* Netgear */
 656         [WGT634U] = {
 657                 .name           = "Netgear WGT634U",
 658                 .buttons        = {
 659                         { .name = "reset",      .gpio = 1 << 2 },
 660                 },
 661                 .leds           = {
 662                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 663                 },
 664         },
 665         /* Trendware */
 666         [TEW411BRPP] = {
 667                 .name           = "Trendware TEW411BRP+",
 668                 .buttons        = {
 669                         { /* No usable buttons */ },
 670                 },
 671                 .leds           = {
 672                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 673                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 674                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 675                 },
 676         },
 677         /* SimpleTech */
 678         [STI_NAS] = {
 679                 .name      = "SimpleTech SimpleShare NAS",
 680                 .buttons        = {
 681                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 682                         { .name = "power",      .gpio = 1 << 0 }, // on back
 683                 },
 684                 .leds      = {
 685                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 686                 },
 687                 .platform_init = bcm4780_init,
 688         },
 689         /* D-Link */
 690         [DIR130] = {
 691                 .name     = "D-Link DIR-130",
 692                 .buttons        = {
 693                         { .name = "reset",      .gpio = 1 << 3},
 694                         { .name = "reserved",   .gpio = 1 << 7},
 695                 },
 696                 .leds      = {
 697                         { .name = "diag",       .gpio = 1 << 0},
 698                         { .name = "blue",       .gpio = 1 << 6},
 699                 },
 700         },
 701         [DIR330] = {
 702                 .name     = "D-Link DIR-330",
 703                 .buttons        = {
 704                         { .name = "reset",      .gpio = 1 << 3},
 705                         { .name = "reserved",   .gpio = 1 << 7},
 706                 },
 707                 .leds      = {
 708                         { .name = "diag",       .gpio = 1 << 0},
 709                         { .name = "usb",        .gpio = 1 << 4},
 710                         { .name = "blue",       .gpio = 1 << 6},
 711                 },
 712         },
 713         [DWL3150] = {
 714                 .name   = "D-Link DWL-3150",
 715                 .buttons        = {
 716                         { .name = "reset",      .gpio = 1 << 7},
 717                 },
 718                 .leds     = {
 719                         { .name = "diag",       .gpio = 1 << 2},
 720                         { .name = "status",     .gpio = 1 << 1},
 721                 },
 722         },
 723         /* Double check */
 724         [WL105B] = {
 725                 .name   = "Sitecom WL-105b",
 726                 .buttons        = {
 727                         { .name = "reset",      .gpio = 1 << 10},
 728                 },
 729                 .leds     = {
 730                         { .name = "wlan",       .gpio = 1 << 4},
 731                         { .name = "power",      .gpio = 1 << 3},
 732                 },
 733         },
 734 };
 735
 736 static struct platform_t __init *platform_detect(void)
 737 {
 738         char *boardnum, *boardtype, *buf;
 739
 740         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 741                 return &platforms[WGT634U];
 742
 743         /* Look for a model identifier */
 744
 745         /* Based on "model_name" */
 746         if ((buf = nvram_get("model_name"))) {
 747                 if (!strcmp(buf, "DIR-130"))
 748                         return &platforms[DIR130];
 749                 if (!strcmp(buf, "DIR-330"))
 750                         return &platforms[DIR330];
 751         }
 752
 753         /* Based on "model_no" */
 754         if ((buf = nvram_get("model_no"))) {
 755                 if (startswith(buf,"WL700")) /* WL700* */
 756                         return &platforms[WL700GE];
 757         }
 758
 759         /* Based on "hardware_version" */
 760         if ((buf = nvram_get("hardware_version"))) {
 761                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 762                         return &platforms[WL500GPV2];
 763                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 764                         return &platforms[WL520GC];
 765                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 766                         return &platforms[WL520GU];
 767         }
 768
 769         /* Based on "ModelId" */
 770         if ((buf = nvram_get("ModelId"))) {
 771                 if (!strcmp(buf, "WR850GP"))
 772                         return &platforms[WR850GP];
 773                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 774                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 775                 if (startswith(buf,"WE800G")) /* WE800G* */
 776                         return &platforms[WE800G];
 777         }
 778
 779         /* Buffalo */
 780         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 781                 /* Buffalo hardware, check id for specific hardware matches */
 782                 if (!strcmp(buf, "29bb0332"))
 783                         return &platforms[WBR2_G54];
 784                 if (!strcmp(buf, "29129"))
 785                         return &platforms[WLA2_G54L];
 786                 if (!strcmp(buf, "30189"))
 787                         return &platforms[WHR_HP_G54];
 788                 if (!strcmp(buf, "32093"))
 789                         return &platforms[WHR_G125];
 790                 if (!strcmp(buf, "30182"))
 791                         return &platforms[WHR_G54S];
 792                 if (!strcmp(buf, "290441dd"))
 793                         return &platforms[WHR2_A54G54];
 794                 if (!strcmp(buf, "31120"))
 795                         return &platforms[WZR_G300N];
 796                 if (!strcmp(buf, "30083"))
 797                         return &platforms[WZR_RS_G54];
 798                 if (!strcmp(buf, "30103"))
 799                         return &platforms[WZR_RS_G54HP];
 800         }
 801
 802         /* no easy model number, attempt to guess */
 803         boardnum = getvar("boardnum");
 804         boardtype = getvar("boardtype");
 805
 806         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 807                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 808                         return &platforms[WRT600NV11];
 809
 810         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 811                         return &platforms[WRT600N];
 812         }
 813
 814         if (startswith(getvar("pmon_ver"), "CFE")) {
 815                 /* CFE based - newer hardware */
 816                 if (!strcmp(boardnum, "42")) { /* Linksys */
 817                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 818                                 return &platforms[WRT350N];
 819
 820                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 821                                 return &platforms[WRT54G3G];
 822
 823                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 824                                 return &platforms[WRTSL54GS];
 825
 826                         /* default to WRT54G */
 827                         return &platforms[WRT54G];
 828                 }
 829
 830                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 831                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 832                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 833                 }
 834
 835                 if (!strcmp(boardnum, "45")) { /* ASUS */
 836                         if (!strcmp(boardtype,"0x042f"))
 837                                 return &platforms[WL500GP];
 838                         else if (!strcmp(boardtype,"0x0472"))
 839                                 return &platforms[WL500W];
 840                         else if (!strcmp(boardtype,"0x467"))
 841                                 return &platforms[WL320GE];
 842                         else
 843                                 return &platforms[WL500GD];
 844                 }
 845
 846                 if (!strcmp(boardnum, "10496"))
 847                         return &platforms[USR5461];
 848
 849                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 850                         return &platforms[SE505V2];
 851
 852         } else { /* PMON based - old stuff */
 853                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 854                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 855                         return &platforms[WR850GV1];
 856                 }
 857                 if (startswith(boardtype, "bcm94710dev")) {
 858                         if (!strcmp(boardnum, "42"))
 859                                 return &platforms[WRT54GV1];
 860                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 861                                 return &platforms[WAP54GV1];
 862                 }
 863                 if (startswith(getvar("hardware_version"), "WL500-"))
 864                         return &platforms[WL500G];
 865                 if (startswith(getvar("hardware_version"), "WL300-")) {
 866                         /* Either WL-300g or WL-HDD, do more extensive checks */
 867                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 868                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 869                                 return &platforms[WLHDD];
 870                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 871                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 872                                 return &platforms[WL300G];
 873                 }
 874                 /* Sitecom WL-105b */
 875                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 876                         return &platforms[WL105B];
 877
 878                 /* unknown asus stuff, probably bcm4702 */
 879                 if (startswith(boardnum, "asusX"))
 880                         return &platforms[ASUS_4702];
 881         }
 882
 883         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 884                 if (startswith(boardtype, "bcm94710ap"))
 885                         return &platforms[BUFFALO_UNKNOWN_4710];
 886                 else
 887                         return &platforms[BUFFALO_UNKNOWN];
 888         }
 889
 890         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 891                 startswith(getvar("CFEver"), "MotoWRv3") ||
 892                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 893
 894                 return &platforms[WR850GV2V3];
 895         }
 896
 897         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 898                 return &platforms[TEW411BRPP];
 899         }
 900
 901         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 902                 return &platforms[STI_NAS];
 903
 904         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 905                 return &platforms[DWL3150];
 906
 907         /* not found */
 908         return NULL;
 909 }
 910
 911 static void register_buttons(struct button_t *b)
 912 {
 913         for (; b->name; b++)
 914                 platform.button_mask |= b->gpio;
 915
 916         platform.button_mask &= ~gpiomask;
 917
 918         gpio_outen(platform.button_mask, 0);
 919         gpio_control(platform.button_mask, 0);
 920         platform.button_polarity = gpio_in() & platform.button_mask;
 921         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 922         gpio_setintmask(platform.button_mask, platform.button_mask);
 923
 924         gpio_set_irqenable(1, button_handler);
 925 }
 926
 927 static void unregister_buttons(struct button_t *b)
 928 {
 929         gpio_setintmask(platform.button_mask, 0);
 930
 931         gpio_set_irqenable(0, button_handler);
 932 }
 933
 934
 935 #ifndef LINUX_2_4
 936 static void add_msg(struct event_t *event, char *msg, int argv)
 937 {
 938         char *s;
 939
 940         if (argv)
 941                 return;
 942
 943         s = skb_put(event->skb, strlen(msg) + 1);
 944         strcpy(s, msg);
 945 }
 946
 947 static void hotplug_button(struct work_struct *work)
 948 {
 949         struct event_t *event = container_of(work, struct event_t, wq);
 950         char *s;
 951
 952         if (!uevent_sock)
 953                 return;
 954
 955         event->skb = alloc_skb(2048, GFP_KERNEL);
 956
 957         s = skb_put(event->skb, strlen(event->action) + 2);
 958         sprintf(s, "%s@", event->action);
 959         fill_event(event);
 960
 961         NETLINK_CB(event->skb).dst_group = 1;
 962         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 963
 964         kfree(event);
 965 }
 966
 967 #else /* !LINUX_2_4 */
 968 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 969 {
 970         char *p;
 971
 972         p = kmalloc(size, gfp);
 973         if (p == NULL)
 974                 return NULL;
 975
 976         memset(p, 0, size);
 977
 978         return p;
 979 }
 980
 981 static void add_msg(struct event_t *event, char *msg, int argv)
 982 {
 983         if (argv)
 984                 event->argv[event->anr++] = event->scratch;
 985         else
 986                 event->envp[event->enr++] = event->scratch;
 987
 988         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 989 }
 990
 991 static void hotplug_button(struct event_t *event)
 992 {
 993         char *scratch = kzalloc(256, GFP_KERNEL);
 994         event->scratch = scratch;
 995
 996         add_msg(event, hotplug_path, 1);
 997         add_msg(event, "button", 1);
 998         fill_event(event);
 999         call_usermodehelper (event->argv[0], event->argv, event->envp);
1000         kfree(scratch);
1001         kfree(event);
1002 }
1003 #endif /* !LINUX_2_4 */
1004
1005 static int fill_event (struct event_t *event)
1006 {
1007         static char buf[128];
1008
1009         add_msg(event, "HOME=/", 0);
1010         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1011         add_msg(event, "SUBSYSTEM=button", 0);
1012         snprintf(buf, 128, "ACTION=%s", event->action);
1013         add_msg(event, buf, 0);
1014         snprintf(buf, 128, "BUTTON=%s", event->name);
1015         add_msg(event, buf, 0);
1016         snprintf(buf, 128, "SEEN=%ld", event->seen);
1017         add_msg(event, buf, 0);
1018 #ifndef LINUX_2_4
1019         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1020         add_msg(event, buf, 0);
1021 #endif
1022
1023         return 0;
1024 }
1025
1026
1027 #ifndef LINUX_2_4
1028 static irqreturn_t button_handler(int irq, void *dev_id)
1029 #else
1030 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1031 #endif
1032 {
1033         struct button_t *b;
1034         u32 in, changed;
1035
1036         in = gpio_in() & platform.button_mask;
1037         gpio_intpolarity(platform.button_mask, in);
1038         changed = platform.button_polarity ^ in;
1039         platform.button_polarity = in;
1040
1041         changed &= ~gpio_outen(0, 0);
1042
1043         for (b = platform.buttons; b->name; b++) {
1044                 struct event_t *event;
1045
1046                 if (!(b->gpio & changed)) continue;
1047
1048                 b->pressed ^= 1;
1049
1050                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1051                         event->seen = (jiffies - b->seen)/HZ;
1052                         event->name = b->name;
1053                         event->action = b->pressed ? "pressed" : "released";
1054 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1055                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1056 #else
1057                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1058 #endif
1059                         schedule_work(&event->wq);
1060                 }
1061
1062                 b->seen = jiffies;
1063         }
1064         return IRQ_HANDLED;
1065 }
1066
1067 static void register_leds(struct led_t *l)
1068 {
1069         struct proc_dir_entry *p;
1070         u32 mask = 0;
1071         u32 oe_mask = 0;
1072         u32 val = 0;
1073
1074         leds = proc_mkdir("led", diag);
1075         if (!leds)
1076                 return;
1077
1078         for(; l->name; l++) {
1079                 if (l->gpio & gpiomask)
1080                         continue;
1081
1082                 if (l->gpio & GPIO_TYPE_EXTIF) {
1083                         l->state = 0;
1084                         set_led_extif(l);
1085                 } else {
1086                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1087                         mask |= l->gpio;
1088                         val |= (l->polarity == NORMAL)?0:l->gpio;
1089                 }
1090
1091                 if (l->polarity == INPUT) continue;
1092
1093                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1094                         l->proc.type = PROC_LED;
1095                         l->proc.ptr = l;
1096                         p->data = (void *) &l->proc;
1097                         p->proc_fops = &diag_proc_fops;
1098                 }
1099         }
1100
1101         gpio_outen(mask, oe_mask);
1102         gpio_control(mask, 0);
1103         gpio_out(mask, val);
1104         gpio_setintmask(mask, 0);
1105 }
1106
1107 static void unregister_leds(struct led_t *l)
1108 {
1109         for(; l->name; l++)
1110                 remove_proc_entry(l->name, leds);
1111
1112         remove_proc_entry("led", diag);
1113 }
1114
1115 static void set_led_extif(struct led_t *led)
1116 {
1117         gpio_set_extif(led->gpio, led->state);
1118 }
1119
1120 static void led_flash(unsigned long dummy) {
1121         struct led_t *l;
1122         u32 mask = 0;
1123         u8 extif_blink = 0;
1124
1125         for (l = platform.leds; l->name; l++) {
1126                 if (l->flash) {
1127                         if (l->gpio & GPIO_TYPE_EXTIF) {
1128                                 extif_blink = 1;
1129                                 l->state = !l->state;
1130                                 set_led_extif(l);
1131                         } else {
1132                                 mask |= l->gpio;
1133                         }
1134                 }
1135         }
1136
1137         mask &= ~gpiomask;
1138         if (mask) {
1139                 u32 val = ~gpio_in();
1140
1141                 gpio_outen(mask, mask);
1142                 gpio_control(mask, 0);
1143                 gpio_out(mask, val);
1144         }
1145         if (mask || extif_blink) {
1146                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1147         }
1148 }
1149
1150 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1151 {
1152 #ifdef LINUX_2_4
1153         struct inode *inode = file->f_dentry->d_inode;
1154         struct proc_dir_entry *dent = inode->u.generic_ip;
1155 #else
1156         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1157 #endif
1158         char *page;
1159         int len = 0;
1160
1161         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1162                 return -ENOBUFS;
1163
1164         if (dent->data != NULL) {
1165                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1166                 switch (handler->type) {
1167                         case PROC_LED: {
1168                                 struct led_t * led = (struct led_t *) handler->ptr;
1169                                 if (led->flash) {
1170                                         len = sprintf(page, "f\n");
1171                                 } else {
1172                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1173                                                 len = sprintf(page, "%d\n", led->state);
1174                                         } else {
1175                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1176                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1177                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1178                                         }
1179                                 }
1180                                 break;
1181                         }
1182                         case PROC_MODEL:
1183                                 len = sprintf(page, "%s\n", platform.name);
1184                                 break;
1185                         case PROC_GPIOMASK:
1186                                 len = sprintf(page, "0x%04x\n", gpiomask);
1187                                 break;
1188                 }
1189         }
1190         len += 1;
1191
1192         if (*ppos < len) {
1193                 len = min_t(int, len - *ppos, count);
1194                 if (copy_to_user(buf, (page + *ppos), len)) {
1195                         kfree(page);
1196                         return -EFAULT;
1197                 }
1198                 *ppos += len;
1199         } else {
1200                 len = 0;
1201         }
1202
1203         kfree(page);
1204         return len;
1205 }
1206
1207
1208 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1209 {
1210 #ifdef LINUX_2_4
1211         struct inode *inode = file->f_dentry->d_inode;
1212         struct proc_dir_entry *dent = inode->u.generic_ip;
1213 #else
1214         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1215 #endif
1216         char *page;
1217         int ret = -EINVAL;
1218
1219         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1220                 return -ENOBUFS;
1221
1222         if (copy_from_user(page, buf, count)) {
1223                 kfree(page);
1224                 return -EINVAL;
1225         }
1226         page[count] = 0;
1227
1228         if (dent->data != NULL) {
1229                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1230                 switch (handler->type) {
1231                         case PROC_LED: {
1232                                 struct led_t *led = (struct led_t *) handler->ptr;
1233                                 int p = (led->polarity == NORMAL ? 0 : 1);
1234
1235                                 if (page[0] == 'f') {
1236                                         led->flash = 1;
1237                                         led_flash(0);
1238                                 } else {
1239                                         led->flash = 0;
1240                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1241                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1242                                                 set_led_extif(led);
1243                                         } else {
1244                                                 gpio_outen(led->gpio, led->gpio);
1245                                                 gpio_control(led->gpio, 0);
1246                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1247                                         }
1248                                 }
1249                                 break;
1250                         }
1251                         case PROC_GPIOMASK:
1252                                 gpiomask = simple_strtoul(page, NULL, 0);
1253
1254                                 if (platform.buttons) {
1255                                         unregister_buttons(platform.buttons);
1256                                         register_buttons(platform.buttons);
1257                                 }
1258
1259                                 if (platform.leds) {
1260                                         unregister_leds(platform.leds);
1261                                         register_leds(platform.leds);
1262                                 }
1263                                 break;
1264                 }
1265                 ret = count;
1266         }
1267
1268         kfree(page);
1269         return ret;
1270 }
1271
1272 static int __init diag_init(void)
1273 {
1274         static struct proc_dir_entry *p;
1275         static struct platform_t *detected;
1276
1277         detected = platform_detect();
1278         if (!detected) {
1279                 printk(MODULE_NAME ": Router model not detected.\n");
1280                 return -ENODEV;
1281         }
1282         memcpy(&platform, detected, sizeof(struct platform_t));
1283
1284         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1285         if (platform.platform_init != NULL) {
1286                 platform.platform_init();
1287         }
1288
1289         if (!(diag = proc_mkdir("diag", NULL))) {
1290                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1291                 return -EINVAL;
1292         }
1293
1294         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1295                 p->data = (void *) &proc_model;
1296                 p->proc_fops = &diag_proc_fops;
1297         }
1298
1299         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1300                 p->data = (void *) &proc_gpiomask;
1301                 p->proc_fops = &diag_proc_fops;
1302         }
1303
1304         if (platform.buttons)
1305                 register_buttons(platform.buttons);
1306
1307         if (platform.leds)
1308                 register_leds(platform.leds);
1309
1310         return 0;
1311 }
1312
1313 static void __exit diag_exit(void)
1314 {
1315         del_timer(&led_timer);
1316
1317         if (platform.buttons)
1318                 unregister_buttons(platform.buttons);
1319
1320         if (platform.leds)
1321                 unregister_leds(platform.leds);
1322
1323         remove_proc_entry("model", diag);
1324         remove_proc_entry("gpiomask", diag);
1325         remove_proc_entry("diag", NULL);
1326 }
1327
1328 module_init(diag_init);
1329 module_exit(diag_exit);
1330
1331 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1332 MODULE_LICENSE("GPL");