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  */
  23 #include <linux/module.h>
  24 #include <linux/pci.h>
  25 #include <linux/kmod.h>
  26 #include <linux/proc_fs.h>
  27 #include <linux/timer.h>
  28 #include <linux/version.h>
  29 #include <asm/uaccess.h>
  30
  31 #ifndef LINUX_2_4
  32 #include <linux/workqueue.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/netlink.h>
  35 #include <net/sock.h>
  36 extern struct sock *uevent_sock;
  37 extern u64 uevent_next_seqnum(void);
  38 #else
  39 #include <linux/tqueue.h>
  40 #define INIT_WORK INIT_TQUEUE
  41 #define schedule_work schedule_task
  42 #define work_struct tq_struct
  43 #endif
  44
  45 #include "gpio.h"
  46 #include "diag.h"
  47 #define getvar(str) (nvram_get(str)?:"")
  48
  49 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  50 static int fill_event(struct event_t *);
  51 static unsigned int gpiomask = 0;
  52 module_param(gpiomask, int, 0644);
  53
  54 enum {
  55         /* Linksys */
  56         WAP54GV1,
  57         WAP54GV2,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT160N,
  64         WRT350N,
  65         WRT600N,
  66         WRT600NV11,
  67         WRT610N,
  68
  69         /* ASUS */
  70         WLHDD,
  71         WL300G,
  72         WL320GE,
  73         WL330GE,
  74         WL500G,
  75         WL500GD,
  76         WL500GP,
  77         WL500GPV2,
  78         WL500W,
  79         WL520GC,
  80         WL520GU,
  81         ASUS_4702,
  82         WL700GE,
  83
  84         /* Buffalo */
  85         WBR2_G54,
  86         WHR_G54S,
  87         WHR_HP_G54,
  88         WHR_G125,
  89         WHR2_A54G54,
  90         WLA2_G54L,
  91         WZR_G300N,
  92         WZR_RS_G54,
  93         WZR_RS_G54HP,
  94         BUFFALO_UNKNOWN,
  95         BUFFALO_UNKNOWN_4710,
  96
  97         /* Siemens */
  98         SE505V1,
  99         SE505V2,
 100
 101         /* US Robotics */
 102         USR5461,
 103
 104         /* Dell */
 105         TM2300,
 106         TM2300V2,
 107
 108         /* Motorola */
 109         WE800G,
 110         WR850GV1,
 111         WR850GV2V3,
 112         WR850GP,
 113
 114         /* Belkin */
 115         BELKIN_UNKNOWN,
 116
 117         /* Netgear */
 118         WGT634U,
 119
 120         /* Trendware */
 121         TEW411BRPP,
 122
 123         /* SimpleTech */
 124         STI_NAS,
 125
 126         /* D-Link */
 127         DIR130,
 128         DIR320,
 129         DIR330,
 130         DWL3150,
 131
 132         /* Sitecom */
 133         WL105B,
 134 };
 135
 136 static void __init bcm4780_init(void) {
 137                 int pin = 1 << 3;
 138
 139                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 140                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 141                 gpio_outen(pin, pin);
 142                 gpio_control(pin, 0);
 143                 gpio_out(pin, pin);
 144
 145                 /* Wait 5s, so the HDD can spin up */
 146                 set_current_state(TASK_INTERRUPTIBLE);
 147                 schedule_timeout(HZ * 5);
 148 }
 149
 150 static void __init bcm57xx_init(void) {
 151         int pin = 1 << 2;
 152
 153 #ifndef LINUX_2_4
 154         /* FIXME: switch comes up, but port mappings/vlans not right */
 155         gpio_outen(pin, pin);
 156         gpio_control(pin, 0);
 157         gpio_out(pin, pin);
 158 #endif
 159 }
 160
 161 static struct platform_t __initdata platforms[] = {
 162         /* Linksys */
 163         [WAP54GV1] = {
 164                 .name           = "Linksys WAP54G V1",
 165                 .buttons        = {
 166                         { .name = "reset",      .gpio = 1 << 0 },
 167                 },
 168                 .leds           = {
 169                         { .name = "diag",       .gpio = 1 << 3 },
 170                         { .name = "wlan",       .gpio = 1 << 4 },
 171                 },
 172         },
 173         [WAP54GV2] = {
 174                 .name           = "Linksys WAP54G V2",
 175                 .buttons        = {
 176                         { .name = "reset",      .gpio = 1 << 0 },
 177                 },
 178                 .leds           = {
 179                         { .name = "wlan",       .gpio = 1 << 5, .polarity = REVERSE },
 180                         /* GPIO 6 is b44 (eth0, LAN) PHY power */
 181                 },
 182         },
 183         [WAP54GV3] = {
 184                 .name           = "Linksys WAP54G V3",
 185                 .buttons        = {
 186                         /* FIXME: verify this */
 187                         { .name = "reset",      .gpio = 1 << 7 },
 188                         { .name = "ses",        .gpio = 1 << 0 },
 189                 },
 190                 .leds           = {
 191                         /* FIXME: diag? */
 192                         { .name = "ses",        .gpio = 1 << 1 },
 193                 },
 194         },
 195         [WRT54GV1] = {
 196                 .name           = "Linksys WRT54G V1.x",
 197                 .buttons        = {
 198                         { .name = "reset",      .gpio = 1 << 6 },
 199                 },
 200                 .leds           = {
 201                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 202                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 203                 },
 204         },
 205         [WRT54G] = {
 206                 .name           = "Linksys WRT54G/GS/GL",
 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 << 7, .polarity = REVERSE },
 214                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 215                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 216                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 217                 },
 218         },
 219         [WRTSL54GS] = {
 220                 .name           = "Linksys WRTSL54GS",
 221                 .buttons        = {
 222                         { .name = "reset",      .gpio = 1 << 6 },
 223                         { .name = "ses",        .gpio = 1 << 4 },
 224                 },
 225                 .leds           = {
 226                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 227                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 228                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 229                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 230                 },
 231         },
 232         [WRT54G3G] = {
 233                 .name           = "Linksys WRT54G3G",
 234                 .buttons        = {
 235                         { .name = "reset",      .gpio = 1 << 6 },
 236                         { .name = "3g",         .gpio = 1 << 4 },
 237                 },
 238                 .leds           = {
 239                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 240                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 241                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 242                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 243                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 244                 },
 245         },
 246         [WRT160N] = {
 247                 .name           = "Linksys WRT160N",
 248                 .buttons        = {
 249                         { .name = "reset",      .gpio = 1 << 6 },
 250                         { .name = "ses",        .gpio = 1 << 4 },
 251                 },
 252                 .leds           = {
 253                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 254                         { .name = "ses_blue",   .gpio = 1 << 5, .polarity = REVERSE },
 255                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 256                 },
 257         },
 258         [WRT350N] = {
 259                 .name           = "Linksys WRT350N",
 260                 .buttons        = {
 261                         { .name = "reset",      .gpio = 1 << 6 },
 262                         { .name = "ses",        .gpio = 1 << 8 },
 263                 },
 264                 .leds           = {
 265                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 266                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 267                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 268                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 269                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 270                 },
 271                 .platform_init = bcm57xx_init,
 272         },
 273         [WRT600N] = {
 274                 .name           = "Linksys WRT600N",
 275                 .buttons        = {
 276                         { .name = "reset",      .gpio = 1 << 6 },
 277                         { .name = "ses",        .gpio = 1 << 7 },
 278                 },
 279                 .leds           = {
 280                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 281                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 282                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 283                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 284                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 285                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 286                 },
 287                 .platform_init = bcm57xx_init,
 288         },
 289         [WRT600NV11] = {
 290                 .name           = "Linksys WRT600N V1.1",
 291                 .buttons        = {
 292                         { .name = "reset",      .gpio = 1 << 6 },
 293                         { .name = "ses",        .gpio = 1 << 7 },
 294                 },
 295                 .leds           = {
 296                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 297                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 298                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 299                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 300                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 301                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 302                 },
 303                 .platform_init = bcm57xx_init,
 304         },
 305         [WRT610N] = {
 306                 .name           = "Linksys WRT610N",
 307                 .buttons        = {
 308                         { .name = "reset",      .gpio = 1 << 6 },
 309                         { .name = "ses",        .gpio = 1 << 8 },
 310                 },
 311                 .leds           = {
 312                         { .name = "power",      .gpio = 1 << 1,  .polarity = NORMAL }, // Power LED
 313                         { .name = "usb",        .gpio = 1 << 0,  .polarity = REVERSE }, // USB LED
 314                         { .name = "ses_amber",  .gpio = 1 << 3,  .polarity = REVERSE }, // WiFi protected setup LED amber
 315                         { .name = "ses_blue",   .gpio = 1 << 9,  .polarity = REVERSE }, // WiFi protected setup LED blue
 316                 },
 317         },
 318         /* Asus */
 319         [WLHDD] = {
 320                 .name           = "ASUS WL-HDD",
 321                 .buttons        = {
 322                         { .name = "reset",      .gpio = 1 << 6 },
 323                 },
 324                 .leds           = {
 325                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 326                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 327                 },
 328         },
 329         [WL300G] = {
 330                 .name           = "ASUS WL-300g",
 331                 .buttons        = {
 332                         { .name = "reset",      .gpio = 1 << 6 },
 333                 },
 334                 .leds           = {
 335                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 336                 },
 337         },
 338         [WL320GE] = {
 339                 .name           = "ASUS WL-320gE/WL-320gP",
 340                 .buttons        = {
 341                         { .name = "reset",      .gpio = 1 << 6 },
 342                 },
 343                 .leds           = {
 344                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 345                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 346                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 347                 },
 348         },
 349         [WL330GE] = {
 350                 .name           = "ASUS WL-330gE",
 351                 .buttons        = {
 352                         { .name = "reset",      .gpio = 1 << 2 },
 353                 },
 354                 .leds           = {
 355                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 356                 },
 357         },
 358         [WL500G] = {
 359                 .name           = "ASUS WL-500g",
 360                 .buttons        = {
 361                         { .name = "reset",      .gpio = 1 << 6 },
 362                 },
 363                 .leds           = {
 364                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 365                 },
 366         },
 367         [WL500GD] = {
 368                 .name           = "ASUS WL-500g Deluxe",
 369                 .buttons        = {
 370                         { .name = "reset",      .gpio = 1 << 6 },
 371                 },
 372                 .leds           = {
 373                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 374                 },
 375         },
 376         [WL500GP] = {
 377                 .name           = "ASUS WL-500g Premium",
 378                 .buttons        = {
 379                         { .name = "reset",      .gpio = 1 << 0 },
 380                         { .name = "ses",        .gpio = 1 << 4 },
 381                 },
 382                 .leds           = {
 383                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 384                 },
 385         },
 386         [WL500GPV2] = {
 387                 .name           = "ASUS WL-500g Premium V2",
 388                 .buttons        = {
 389                         { .name = "reset",      .gpio = 1 << 2 },
 390                         { .name = "ses",        .gpio = 1 << 3 },
 391                 },
 392                 .leds           = {
 393                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 394                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 395                 },
 396         },
 397         [WL500W] = {
 398                 .name           = "ASUS WL-500W",
 399                 .buttons        = {
 400                         { .name = "reset",      .gpio = 1 << 6 },
 401                         { .name = "ses",        .gpio = 1 << 7 },
 402                 },
 403                 .leds           = {
 404                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 405                 },
 406         },
 407         [WL520GC] = {
 408                 .name           = "ASUS WL-520GC",
 409                 .buttons        = {
 410                         { .name = "reset",      .gpio = 1 << 2 },
 411                         { .name = "ses",        .gpio = 1 << 3 },
 412                 },
 413                 .leds           = {
 414                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 415                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 416                 },
 417         },
 418         [WL520GU] = {
 419                 .name           = "ASUS WL-520gU",
 420                 .buttons        = {
 421                         { .name = "reset",      .gpio = 1 << 2 },
 422                         { .name = "ses",        .gpio = 1 << 3 },
 423                 },
 424                 .leds           = {
 425                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 426                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 427                 },
 428         },
 429         [ASUS_4702] = {
 430                 .name           = "ASUS (unknown, BCM4702)",
 431                 .buttons        = {
 432                         { .name = "reset",      .gpio = 1 << 6 },
 433                 },
 434                 .leds           = {
 435                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 436                 },
 437         },
 438         [WL700GE] = {
 439                 .name           = "ASUS WL-700gE",
 440                 .buttons        = {
 441                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 442                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 443                         { .name = "power",      .gpio = 1 << 0 }, // on front
 444                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 445                 },
 446                 .leds           = {
 447 #if 0
 448                         // GPIO that controls power led also enables/disables some essential functions
 449                         // - power to HDD
 450                         // - switch leds
 451                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 452 #endif
 453                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 454                 },
 455                 .platform_init = bcm4780_init,
 456         },
 457         /* Buffalo */
 458         [WHR_G54S] = {
 459                 .name           = "Buffalo WHR-G54S",
 460                 .buttons        = {
 461                         { .name = "reset",      .gpio = 1 << 4 },
 462                         { .name = "bridge",     .gpio = 1 << 5 },
 463                         { .name = "ses",        .gpio = 1 << 0 },
 464                 },
 465                 .leds           = {
 466                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 467                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 468                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 469                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 470                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 471                 },
 472         },
 473         [WBR2_G54] = {
 474                 .name           = "Buffalo WBR2-G54",
 475                 /* FIXME: verify */
 476                 .buttons        = {
 477                         { .name = "reset",      .gpio = 1 << 7 },
 478                 },
 479                 .leds           = {
 480                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 481                 },
 482         },
 483         [WHR_HP_G54] = {
 484                 .name           = "Buffalo WHR-HP-G54",
 485                 .buttons        = {
 486                         { .name = "reset",      .gpio = 1 << 4 },
 487                         { .name = "bridge",     .gpio = 1 << 5 },
 488                         { .name = "ses",        .gpio = 1 << 0 },
 489                 },
 490                 .leds           = {
 491                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 492                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 493                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 494                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 495                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 496                 },
 497         },
 498         [WHR_G125] = {
 499                 .name           = "Buffalo WHR-G125",
 500                 .buttons        = {
 501                         { .name = "reset",      .gpio = 1 << 4 },
 502                         { .name = "bridge",     .gpio = 1 << 5 },
 503                         { .name = "ses",        .gpio = 1 << 0 },
 504                 },
 505                 .leds           = {
 506                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 507                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 508                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 509                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 510                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 511                 },
 512         },
 513         [WHR2_A54G54] = {
 514                 .name           = "Buffalo WHR2-A54G54",
 515                 .buttons        = {
 516                         { .name = "reset",      .gpio = 1 << 4 },
 517                 },
 518                 .leds           = {
 519                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 520                 },
 521         },
 522         [WLA2_G54L] = {
 523                 .name           = "Buffalo WLA2-G54L",
 524                 /* FIXME: verify */
 525                 .buttons        = {
 526                         { .name = "reset",      .gpio = 1 << 7 },
 527                 },
 528                 .leds           = {
 529                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 530                 },
 531         },
 532         [WZR_G300N] = {
 533                 .name           = "Buffalo WZR-G300N",
 534                 .buttons        = {
 535                         { .name = "reset",      .gpio = 1 << 4 },
 536                 },
 537                 .leds           = {
 538                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 539                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 540                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 541                 },
 542         },
 543         [WZR_RS_G54] = {
 544                 .name           = "Buffalo WZR-RS-G54",
 545                 .buttons        = {
 546                         { .name = "ses",        .gpio = 1 << 0 },
 547                         { .name = "reset",      .gpio = 1 << 4 },
 548                 },
 549                 .leds           = {
 550                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 551                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 552                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 553                 },
 554         },
 555         [WZR_RS_G54HP] = {
 556                 .name           = "Buffalo WZR-RS-G54HP",
 557                 .buttons        = {
 558                         { .name = "ses",        .gpio = 1 << 0 },
 559                         { .name = "reset",      .gpio = 1 << 4 },
 560                 },
 561                 .leds           = {
 562                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 563                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 564                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 565                 },
 566         },
 567         [BUFFALO_UNKNOWN] = {
 568                 .name           = "Buffalo (unknown)",
 569                 .buttons        = {
 570                         { .name = "reset",      .gpio = 1 << 7 },
 571                 },
 572                 .leds           = {
 573                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 574                 },
 575         },
 576         [BUFFALO_UNKNOWN_4710] = {
 577                 .name           = "Buffalo (unknown, BCM4710)",
 578                 .buttons        = {
 579                         { .name = "reset",      .gpio = 1 << 4 },
 580                 },
 581                 .leds           = {
 582                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 583                 },
 584         },
 585         /* Siemens */
 586         [SE505V1] = {
 587                 .name           = "Siemens SE505 V1",
 588                 .buttons        = {
 589                         /* No usable buttons */
 590                 },
 591                 .leds           = {
 592 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 593                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 594                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 595                 },
 596         },
 597         [SE505V2] = {
 598                 .name           = "Siemens SE505 V2",
 599                 .buttons        = {
 600                         /* No usable buttons */
 601                 },
 602                 .leds           = {
 603                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 604                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 605                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 606                 },
 607         },
 608         /* US Robotics */
 609         [USR5461] = {
 610                 .name           = "U.S. Robotics USR5461",
 611                 .buttons        = {
 612                         /* No usable buttons */
 613                 },
 614                 .leds           = {
 615                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 616                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 617                 },
 618         },
 619         /* Dell */
 620         [TM2300] = {
 621                 .name           = "Dell TrueMobile 2300",
 622                 .buttons        = {
 623                         { .name = "reset",      .gpio = 1 << 0 },
 624                 },
 625                 .leds           = {
 626                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 627                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 628                 },
 629         },
 630         [TM2300V2] = {
 631                 .name           = "Dell TrueMobile 2300 v2",
 632                 .buttons        = {
 633                         { .name = "reset",      .gpio = 1 << 0 },
 634                 },
 635                 .leds           = {
 636                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 637                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 638                 },
 639         },
 640         /* Motorola */
 641         [WE800G] = {
 642                 .name           = "Motorola WE800G",
 643                 .buttons        = {
 644                         { .name = "reset",      .gpio = 1 << 0 },
 645                 },
 646                 .leds           = {
 647                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 648                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 649                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 650                 },
 651         },
 652         [WR850GV1] = {
 653                 .name           = "Motorola WR850G V1",
 654                 .buttons        = {
 655                         { .name = "reset",      .gpio = 1 << 0 },
 656                 },
 657                 .leds           = {
 658                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 659                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 660                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 661                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 662                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 663                 },
 664         },
 665         [WR850GV2V3] = {
 666                 .name           = "Motorola WR850G V2/V3",
 667                 .buttons        = {
 668                         { .name = "reset",      .gpio = 1 << 5 },
 669                 },
 670                 .leds           = {
 671                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 672                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 673                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 674                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 675                 },
 676         },
 677         [WR850GP] = {
 678                 .name           = "Motorola WR850GP",
 679                 .buttons        = {
 680                         { .name = "reset",      .gpio = 1 << 5 },
 681                 },
 682                 .leds           = {
 683                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 684                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 685                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 686                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 687                 },
 688         },
 689
 690         /* Belkin */
 691         [BELKIN_UNKNOWN] = {
 692                 .name           = "Belkin (unknown)",
 693                 /* FIXME: verify & add detection */
 694                 .buttons        = {
 695                         { .name = "reset",      .gpio = 1 << 7 },
 696                 },
 697                 .leds           = {
 698                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 699                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 700                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 701                 },
 702         },
 703         /* Netgear */
 704         [WGT634U] = {
 705                 .name           = "Netgear WGT634U",
 706                 .buttons        = {
 707                         { .name = "reset",      .gpio = 1 << 2 },
 708                 },
 709                 .leds           = {
 710                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 711                 },
 712         },
 713         /* Trendware */
 714         [TEW411BRPP] = {
 715                 .name           = "Trendware TEW411BRP+",
 716                 .buttons        = {
 717                         { /* No usable buttons */ },
 718                 },
 719                 .leds           = {
 720                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 721                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 722                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 723                 },
 724         },
 725         /* SimpleTech */
 726         [STI_NAS] = {
 727                 .name      = "SimpleTech SimpleShare NAS",
 728                 .buttons        = {
 729                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 730                         { .name = "power",      .gpio = 1 << 0 }, // on back
 731                 },
 732                 .leds      = {
 733                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 734                 },
 735                 .platform_init = bcm4780_init,
 736         },
 737         /* D-Link */
 738         [DIR130] = {
 739                 .name     = "D-Link DIR-130",
 740                 .buttons        = {
 741                         { .name = "reset",      .gpio = 1 << 3},
 742                         { .name = "reserved",   .gpio = 1 << 7},
 743                 },
 744                 .leds      = {
 745                         { .name = "diag",       .gpio = 1 << 0},
 746                         { .name = "blue",       .gpio = 1 << 6},
 747                 },
 748         },
 749         [DIR320] = {
 750                 .name     = "D-Link DIR-320",
 751                 .buttons        = {
 752                         { .name = "reserved",   .gpio = 1 << 6},
 753                         { .name = "reset",      .gpio = 1 << 7},
 754                 },
 755                 .leds      = {
 756                         { .name = "wlan",       .gpio = 1 << 0, .polarity = NORMAL },
 757                         { .name = "diag",       .gpio = 1 << 1, .polarity = NORMAL }, /* "status led */
 758                         { .name = "red",        .gpio = 1 << 3, .polarity = REVERSE },
 759                         { .name = "blue",       .gpio = 1 << 4, .polarity = REVERSE },
 760                         { .name = "usb",        .gpio = 1 << 5, .polarity = NORMAL },
 761                 },
 762         },
 763         [DIR330] = {
 764                 .name     = "D-Link DIR-330",
 765                 .buttons        = {
 766                         { .name = "reset",      .gpio = 1 << 3},
 767                         { .name = "reserved",   .gpio = 1 << 7},
 768                 },
 769                 .leds      = {
 770                         { .name = "diag",       .gpio = 1 << 0},
 771                         { .name = "usb",        .gpio = 1 << 4},
 772                         { .name = "blue",       .gpio = 1 << 6},
 773                 },
 774         },
 775         [DWL3150] = {
 776                 .name   = "D-Link DWL-3150",
 777                 .buttons        = {
 778                         { .name = "reset",      .gpio = 1 << 7},
 779                 },
 780                 .leds     = {
 781                         { .name = "diag",       .gpio = 1 << 2},
 782                         { .name = "status",     .gpio = 1 << 1},
 783                 },
 784         },
 785         /* Double check */
 786         [WL105B] = {
 787                 .name   = "Sitecom WL-105b",
 788                 .buttons        = {
 789                         { .name = "reset",      .gpio = 1 << 10},
 790                 },
 791                 .leds     = {
 792                         { .name = "wlan",       .gpio = 1 << 4},
 793                         { .name = "power",      .gpio = 1 << 3},
 794                 },
 795         },
 796 };
 797
 798 static struct platform_t __init *platform_detect(void)
 799 {
 800         char *boardnum, *boardtype, *buf;
 801
 802         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 803                 return &platforms[WGT634U];
 804
 805         /* Look for a model identifier */
 806
 807         /* Based on "model_name" */
 808         if ((buf = nvram_get("model_name"))) {
 809                 if (!strcmp(buf, "DIR-130"))
 810                         return &platforms[DIR130];
 811                 if (!strcmp(buf, "DIR-330"))
 812                         return &platforms[DIR330];
 813         }
 814
 815         /* Based on "wsc_modelname */
 816         if ((buf = nvram_get("wsc_modelname"))) {
 817                 if (!strcmp(buf, "WRT610N"))
 818                         return &platforms[WRT610N];
 819         }
 820
 821         /* Based on "model_no" */
 822         if ((buf = nvram_get("model_no"))) {
 823                 if (startswith(buf,"WL700")) /* WL700* */
 824                         return &platforms[WL700GE];
 825         }
 826
 827         /* Based on "hardware_version" */
 828         if ((buf = nvram_get("hardware_version"))) {
 829                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 830                         return &platforms[WL500GPV2];
 831                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 832                         return &platforms[WL520GC];
 833                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 834                         return &platforms[WL520GU];
 835                 if (startswith(buf,"WL330GE-")) /* WL330GE-* */
 836                         return &platforms[WL330GE];
 837         }
 838
 839         /* Based on "ModelId" */
 840         if ((buf = nvram_get("ModelId"))) {
 841                 if (!strcmp(buf, "WR850GP"))
 842                         return &platforms[WR850GP];
 843                 if (!strcmp(buf, "WR850G"))
 844                         return &platforms[WR850GV2V3];
 845                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 846                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 847                 if (startswith(buf,"WE800G")) /* WE800G* */
 848                         return &platforms[WE800G];
 849         }
 850
 851         /* Buffalo */
 852         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 853                 /* Buffalo hardware, check id for specific hardware matches */
 854                 if (!strcmp(buf, "29bb0332"))
 855                         return &platforms[WBR2_G54];
 856                 if (!strcmp(buf, "29129"))
 857                         return &platforms[WLA2_G54L];
 858                 if (!strcmp(buf, "30189"))
 859                         return &platforms[WHR_HP_G54];
 860                 if (!strcmp(buf, "32093"))
 861                         return &platforms[WHR_G125];
 862                 if (!strcmp(buf, "30182"))
 863                         return &platforms[WHR_G54S];
 864                 if (!strcmp(buf, "290441dd"))
 865                         return &platforms[WHR2_A54G54];
 866                 if (!strcmp(buf, "31120"))
 867                         return &platforms[WZR_G300N];
 868                 if (!strcmp(buf, "30083"))
 869                         return &platforms[WZR_RS_G54];
 870                 if (!strcmp(buf, "30103"))
 871                         return &platforms[WZR_RS_G54HP];
 872         }
 873
 874         /* no easy model number, attempt to guess */
 875         boardnum = getvar("boardnum");
 876         boardtype = getvar("boardtype");
 877
 878         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 879                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 880                         return &platforms[WRT600NV11];
 881
 882         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 883                         return &platforms[WRT600N];
 884         }
 885
 886         if (startswith(getvar("pmon_ver"), "CFE")) {
 887                 /* CFE based - newer hardware */
 888                 if (!strcmp(boardnum, "42")) { /* Linksys */
 889                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 890                                 return &platforms[WRT350N];
 891
 892                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 893                                 return &platforms[WRT54G3G];
 894
 895                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 896                                 return &platforms[WRTSL54GS];
 897
 898                         if (!strcmp(boardtype, "0x0472"))
 899                                 return &platforms[WRT160N];
 900
 901                         /* default to WRT54G */
 902                         return &platforms[WRT54G];
 903                 }
 904                 if (!strcmp(boardnum, "1024") && !strcmp(boardtype, "0x0446"))
 905                         return &platforms[WAP54GV2];
 906
 907                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 908                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 909                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 910                 }
 911
 912                 if (!strcmp(boardnum, "45")) { /* ASUS */
 913                         if (!strcmp(boardtype,"0x042f"))
 914                                 return &platforms[WL500GP];
 915                         else if (!strcmp(boardtype,"0x0472"))
 916                                 return &platforms[WL500W];
 917                         else if (!strcmp(boardtype,"0x467"))
 918                                 return &platforms[WL320GE];
 919                         else
 920                                 return &platforms[WL500GD];
 921                 }
 922
 923                 if (!strcmp(boardnum, "10496"))
 924                         return &platforms[USR5461];
 925
 926                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 927                         return &platforms[SE505V2];
 928
 929                 if (!strcmp(boardtype, "0x048e") && !strcmp(getvar("boardrev"),"0x35") &&
 930                                 !strcmp(getvar("boardflags"), "0x750")) /* D-Link DIR-320 */
 931                         return &platforms[DIR320];
 932
 933         } else { /* PMON based - old stuff */
 934                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 935                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 936                         return &platforms[WR850GV1];
 937                 }
 938                 if (startswith(boardtype, "bcm94710dev")) {
 939                         if (!strcmp(boardnum, "42"))
 940                                 return &platforms[WRT54GV1];
 941                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 942                                 return &platforms[WAP54GV1];
 943                 }
 944                 if (startswith(getvar("hardware_version"), "WL500-"))
 945                         return &platforms[WL500G];
 946                 if (startswith(getvar("hardware_version"), "WL300-")) {
 947                         /* Either WL-300g or WL-HDD, do more extensive checks */
 948                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 949                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 950                                 return &platforms[WLHDD];
 951                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 952                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 953                                 return &platforms[WL300G];
 954                 }
 955                 /* Sitecom WL-105b */
 956                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 957                         return &platforms[WL105B];
 958
 959                 /* unknown asus stuff, probably bcm4702 */
 960                 if (startswith(boardnum, "asusX"))
 961                         return &platforms[ASUS_4702];
 962         }
 963
 964         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 965                 if (startswith(boardtype, "bcm94710ap"))
 966                         return &platforms[BUFFALO_UNKNOWN_4710];
 967                 else
 968                         return &platforms[BUFFALO_UNKNOWN];
 969         }
 970
 971         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 972                 startswith(getvar("CFEver"), "MotoWRv3") ||
 973                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 974
 975                 return &platforms[WR850GV2V3];
 976         }
 977
 978         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 979                 return &platforms[TEW411BRPP];
 980         }
 981
 982         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 983                 return &platforms[STI_NAS];
 984
 985         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 986                 return &platforms[DWL3150];
 987
 988         /* not found */
 989         return NULL;
 990 }
 991
 992 static void register_buttons(struct button_t *b)
 993 {
 994         for (; b->name; b++)
 995                 platform.button_mask |= b->gpio;
 996
 997         platform.button_mask &= ~gpiomask;
 998
 999         gpio_outen(platform.button_mask, 0);
1000         gpio_control(platform.button_mask, 0);
1001         platform.button_polarity = gpio_in() & platform.button_mask;
1002         gpio_intpolarity(platform.button_mask, platform.button_polarity);
1003         gpio_setintmask(platform.button_mask, platform.button_mask);
1004
1005         gpio_set_irqenable(1, button_handler);
1006 }
1007
1008 static void unregister_buttons(struct button_t *b)
1009 {
1010         gpio_setintmask(platform.button_mask, 0);
1011
1012         gpio_set_irqenable(0, button_handler);
1013 }
1014
1015
1016 #ifndef LINUX_2_4
1017 static void add_msg(struct event_t *event, char *msg, int argv)
1018 {
1019         char *s;
1020
1021         if (argv)
1022                 return;
1023
1024         s = skb_put(event->skb, strlen(msg) + 1);
1025         strcpy(s, msg);
1026 }
1027
1028 static void hotplug_button(struct work_struct *work)
1029 {
1030         struct event_t *event = container_of(work, struct event_t, wq);
1031         char *s;
1032
1033         if (!uevent_sock)
1034                 return;
1035
1036         event->skb = alloc_skb(2048, GFP_KERNEL);
1037
1038         s = skb_put(event->skb, strlen(event->action) + 2);
1039         sprintf(s, "%s@", event->action);
1040         fill_event(event);
1041
1042         NETLINK_CB(event->skb).dst_group = 1;
1043         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
1044
1045         kfree(event);
1046 }
1047
1048 #else /* !LINUX_2_4 */
1049 static inline char *kzalloc(unsigned int size, unsigned int gfp)
1050 {
1051         char *p;
1052
1053         p = kmalloc(size, gfp);
1054         if (p == NULL)
1055                 return NULL;
1056
1057         memset(p, 0, size);
1058
1059         return p;
1060 }
1061
1062 static void add_msg(struct event_t *event, char *msg, int argv)
1063 {
1064         if (argv)
1065                 event->argv[event->anr++] = event->scratch;
1066         else
1067                 event->envp[event->enr++] = event->scratch;
1068
1069         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
1070 }
1071
1072 static void hotplug_button(struct event_t *event)
1073 {
1074         char *scratch = kzalloc(256, GFP_KERNEL);
1075         event->scratch = scratch;
1076
1077         add_msg(event, hotplug_path, 1);
1078         add_msg(event, "button", 1);
1079         fill_event(event);
1080         call_usermodehelper (event->argv[0], event->argv, event->envp);
1081         kfree(scratch);
1082         kfree(event);
1083 }
1084 #endif /* !LINUX_2_4 */
1085
1086 static int fill_event (struct event_t *event)
1087 {
1088         static char buf[128];
1089
1090         add_msg(event, "HOME=/", 0);
1091         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1092         add_msg(event, "SUBSYSTEM=button", 0);
1093         snprintf(buf, 128, "ACTION=%s", event->action);
1094         add_msg(event, buf, 0);
1095         snprintf(buf, 128, "BUTTON=%s", event->name);
1096         add_msg(event, buf, 0);
1097         snprintf(buf, 128, "SEEN=%ld", event->seen);
1098         add_msg(event, buf, 0);
1099 #ifndef LINUX_2_4
1100         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1101         add_msg(event, buf, 0);
1102 #endif
1103
1104         return 0;
1105 }
1106
1107
1108 #ifndef LINUX_2_4
1109 static irqreturn_t button_handler(int irq, void *dev_id)
1110 #else
1111 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1112 #endif
1113 {
1114         struct button_t *b;
1115         u32 in, changed;
1116
1117         in = gpio_in() & platform.button_mask;
1118         gpio_intpolarity(platform.button_mask, in);
1119         changed = platform.button_polarity ^ in;
1120         platform.button_polarity = in;
1121
1122         changed &= ~gpio_outen(0, 0);
1123
1124         for (b = platform.buttons; b->name; b++) {
1125                 struct event_t *event;
1126
1127                 if (!(b->gpio & changed)) continue;
1128
1129                 b->pressed ^= 1;
1130
1131                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1132                         event->seen = (jiffies - b->seen)/HZ;
1133                         event->name = b->name;
1134                         event->action = b->pressed ? "pressed" : "released";
1135 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1136                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1137 #else
1138                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1139 #endif
1140                         schedule_work(&event->wq);
1141                 }
1142
1143                 b->seen = jiffies;
1144         }
1145         return IRQ_HANDLED;
1146 }
1147
1148 static void register_leds(struct led_t *l)
1149 {
1150         struct proc_dir_entry *p;
1151         u32 mask = 0;
1152         u32 oe_mask = 0;
1153         u32 val = 0;
1154
1155         leds = proc_mkdir("led", diag);
1156         if (!leds)
1157                 return;
1158
1159         for(; l->name; l++) {
1160                 if (l->gpio & gpiomask)
1161                         continue;
1162
1163                 if (l->gpio & GPIO_TYPE_EXTIF) {
1164                         l->state = 0;
1165                         set_led_extif(l);
1166                 } else {
1167                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1168                         mask |= l->gpio;
1169                         val |= (l->polarity == NORMAL)?0:l->gpio;
1170                 }
1171
1172                 if (l->polarity == INPUT) continue;
1173
1174                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1175                         l->proc.type = PROC_LED;
1176                         l->proc.ptr = l;
1177                         p->data = (void *) &l->proc;
1178                         p->proc_fops = &diag_proc_fops;
1179                 }
1180         }
1181
1182         gpio_outen(mask, oe_mask);
1183         gpio_control(mask, 0);
1184         gpio_out(mask, val);
1185         gpio_setintmask(mask, 0);
1186 }
1187
1188 static void unregister_leds(struct led_t *l)
1189 {
1190         for(; l->name; l++)
1191                 remove_proc_entry(l->name, leds);
1192
1193         remove_proc_entry("led", diag);
1194 }
1195
1196 static void set_led_extif(struct led_t *led)
1197 {
1198         gpio_set_extif(led->gpio, led->state);
1199 }
1200
1201 static void led_flash(unsigned long dummy) {
1202         struct led_t *l;
1203         u32 mask = 0;
1204         u8 extif_blink = 0;
1205
1206         for (l = platform.leds; l->name; l++) {
1207                 if (l->flash) {
1208                         if (l->gpio & GPIO_TYPE_EXTIF) {
1209                                 extif_blink = 1;
1210                                 l->state = !l->state;
1211                                 set_led_extif(l);
1212                         } else {
1213                                 mask |= l->gpio;
1214                         }
1215                 }
1216         }
1217
1218         mask &= ~gpiomask;
1219         if (mask) {
1220                 u32 val = ~gpio_in();
1221
1222                 gpio_outen(mask, mask);
1223                 gpio_control(mask, 0);
1224                 gpio_out(mask, val);
1225         }
1226         if (mask || extif_blink) {
1227                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1228         }
1229 }
1230
1231 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1232 {
1233 #ifdef LINUX_2_4
1234         struct inode *inode = file->f_dentry->d_inode;
1235         struct proc_dir_entry *dent = inode->u.generic_ip;
1236 #else
1237         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1238 #endif
1239         char *page;
1240         int len = 0;
1241
1242         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1243                 return -ENOBUFS;
1244
1245         if (dent->data != NULL) {
1246                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1247                 switch (handler->type) {
1248                         case PROC_LED: {
1249                                 struct led_t * led = (struct led_t *) handler->ptr;
1250                                 if (led->flash) {
1251                                         len = sprintf(page, "f\n");
1252                                 } else {
1253                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1254                                                 len = sprintf(page, "%d\n", led->state);
1255                                         } else {
1256                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1257                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1258                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1259                                         }
1260                                 }
1261                                 break;
1262                         }
1263                         case PROC_MODEL:
1264                                 len = sprintf(page, "%s\n", platform.name);
1265                                 break;
1266                         case PROC_GPIOMASK:
1267                                 len = sprintf(page, "0x%04x\n", gpiomask);
1268                                 break;
1269                 }
1270         }
1271         len += 1;
1272
1273         if (*ppos < len) {
1274                 len = min_t(int, len - *ppos, count);
1275                 if (copy_to_user(buf, (page + *ppos), len)) {
1276                         kfree(page);
1277                         return -EFAULT;
1278                 }
1279                 *ppos += len;
1280         } else {
1281                 len = 0;
1282         }
1283
1284         kfree(page);
1285         return len;
1286 }
1287
1288
1289 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1290 {
1291 #ifdef LINUX_2_4
1292         struct inode *inode = file->f_dentry->d_inode;
1293         struct proc_dir_entry *dent = inode->u.generic_ip;
1294 #else
1295         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1296 #endif
1297         char *page;
1298         int ret = -EINVAL;
1299
1300         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1301                 return -ENOBUFS;
1302
1303         if (copy_from_user(page, buf, count)) {
1304                 kfree(page);
1305                 return -EINVAL;
1306         }
1307         page[count] = 0;
1308
1309         if (dent->data != NULL) {
1310                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1311                 switch (handler->type) {
1312                         case PROC_LED: {
1313                                 struct led_t *led = (struct led_t *) handler->ptr;
1314                                 int p = (led->polarity == NORMAL ? 0 : 1);
1315
1316                                 if (page[0] == 'f') {
1317                                         led->flash = 1;
1318                                         led_flash(0);
1319                                 } else {
1320                                         led->flash = 0;
1321                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1322                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1323                                                 set_led_extif(led);
1324                                         } else {
1325                                                 gpio_outen(led->gpio, led->gpio);
1326                                                 gpio_control(led->gpio, 0);
1327                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1328                                         }
1329                                 }
1330                                 break;
1331                         }
1332                         case PROC_GPIOMASK:
1333                                 gpiomask = simple_strtoul(page, NULL, 0);
1334
1335                                 if (platform.buttons) {
1336                                         unregister_buttons(platform.buttons);
1337                                         register_buttons(platform.buttons);
1338                                 }
1339
1340                                 if (platform.leds) {
1341                                         unregister_leds(platform.leds);
1342                                         register_leds(platform.leds);
1343                                 }
1344                                 break;
1345                 }
1346                 ret = count;
1347         }
1348
1349         kfree(page);
1350         return ret;
1351 }
1352
1353 static int __init diag_init(void)
1354 {
1355         static struct proc_dir_entry *p;
1356         static struct platform_t *detected;
1357
1358         detected = platform_detect();
1359         if (!detected) {
1360                 printk(MODULE_NAME ": Router model not detected.\n");
1361                 return -ENODEV;
1362         }
1363         memcpy(&platform, detected, sizeof(struct platform_t));
1364
1365         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1366         if (platform.platform_init != NULL) {
1367                 platform.platform_init();
1368         }
1369
1370         if (!(diag = proc_mkdir("diag", NULL))) {
1371                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1372                 return -EINVAL;
1373         }
1374
1375         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1376                 p->data = (void *) &proc_model;
1377                 p->proc_fops = &diag_proc_fops;
1378         }
1379
1380         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1381                 p->data = (void *) &proc_gpiomask;
1382                 p->proc_fops = &diag_proc_fops;
1383         }
1384
1385         if (platform.buttons)
1386                 register_buttons(platform.buttons);
1387
1388         if (platform.leds)
1389                 register_leds(platform.leds);
1390
1391         return 0;
1392 }
1393
1394 static void __exit diag_exit(void)
1395 {
1396         del_timer(&led_timer);
1397
1398         if (platform.buttons)
1399                 unregister_buttons(platform.buttons);
1400
1401         if (platform.leds)
1402                 unregister_leds(platform.leds);
1403
1404         remove_proc_entry("model", diag);
1405         remove_proc_entry("gpiomask", diag);
1406         remove_proc_entry("diag", NULL);
1407 }
1408
1409 module_init(diag_init);
1410 module_exit(diag_exit);
1411
1412 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1413 MODULE_LICENSE("GPL");