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