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         WRT300NV11,
  65         WRT350N,
  66         WRT600N,
  67         WRT600NV11,
  68         WRT610N,
  69
  70         /* ASUS */
  71         WLHDD,
  72         WL300G,
  73         WL320GE,
  74         WL330GE,
  75         WL500G,
  76         WL500GD,
  77         WL500GP,
  78         WL500GPV2,
  79         WL500W,
  80         WL520GC,
  81         WL520GU,
  82         ASUS_4702,
  83         WL700GE,
  84
  85         /* Buffalo */
  86         WBR2_G54,
  87         WHR_G54S,
  88         WHR_HP_G54,
  89         WHR_G125,
  90         WHR2_A54G54,
  91         WLA2_G54L,
  92         WZR_G300N,
  93         WZR_RS_G54,
  94         WZR_RS_G54HP,
  95         BUFFALO_UNKNOWN,
  96         BUFFALO_UNKNOWN_4710,
  97
  98         /* Siemens */
  99         SE505V1,
 100         SE505V2,
 101
 102         /* US Robotics */
 103         USR5461,
 104
 105         /* Dell */
 106         TM2300,
 107         TM2300V2,
 108
 109         /* Motorola */
 110         WE800G,
 111         WR850GV1,
 112         WR850GV2V3,
 113         WR850GP,
 114
 115         /* Belkin */
 116         BELKIN_UNKNOWN,
 117
 118         /* Netgear */
 119         WGT634U,
 120
 121         /* Trendware */
 122         TEW411BRPP,
 123
 124         /* SimpleTech */
 125         STI_NAS,
 126
 127         /* D-Link */
 128         DIR130,
 129         DIR320,
 130         DIR330,
 131         DWL3150,
 132
 133         /* Sitecom */
 134         WL105B,
 135
 136         /* Askey */
 137         RT210W,
 138 };
 139
 140 static void __init bcm4780_init(void) {
 141                 int pin = 1 << 3;
 142
 143                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 144                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 145                 gpio_outen(pin, pin);
 146                 gpio_control(pin, 0);
 147                 gpio_out(pin, pin);
 148
 149                 /* Wait 5s, so the HDD can spin up */
 150                 set_current_state(TASK_INTERRUPTIBLE);
 151                 schedule_timeout(HZ * 5);
 152 }
 153
 154 static void __init bcm57xx_init(void) {
 155         int pin = 1 << 2;
 156
 157 #ifndef LINUX_2_4
 158         /* FIXME: switch comes up, but port mappings/vlans not right */
 159         gpio_outen(pin, pin);
 160         gpio_control(pin, 0);
 161         gpio_out(pin, pin);
 162 #endif
 163 }
 164
 165 static struct platform_t __initdata platforms[] = {
 166         /* Linksys */
 167         [WAP54GV1] = {
 168                 .name           = "Linksys WAP54G V1",
 169                 .buttons        = {
 170                         { .name = "reset",      .gpio = 1 << 0 },
 171                 },
 172                 .leds           = {
 173                         { .name = "diag",       .gpio = 1 << 3 },
 174                         { .name = "wlan",       .gpio = 1 << 4 },
 175                 },
 176         },
 177         [WAP54GV2] = {
 178                 .name           = "Linksys WAP54G V2",
 179                 .buttons        = {
 180                         { .name = "reset",      .gpio = 1 << 0 },
 181                 },
 182                 .leds           = {
 183                         { .name = "wlan",       .gpio = 1 << 5, .polarity = REVERSE },
 184                         /* GPIO 6 is b44 (eth0, LAN) PHY power */
 185                 },
 186         },
 187         [WAP54GV3] = {
 188                 .name           = "Linksys WAP54G V3",
 189                 .buttons        = {
 190                         /* FIXME: verify this */
 191                         { .name = "reset",      .gpio = 1 << 7 },
 192                         { .name = "ses",        .gpio = 1 << 0 },
 193                 },
 194                 .leds           = {
 195                         /* FIXME: diag? */
 196                         { .name = "ses",        .gpio = 1 << 1 },
 197                 },
 198         },
 199         [WRT54GV1] = {
 200                 .name           = "Linksys WRT54G V1.x",
 201                 .buttons        = {
 202                         { .name = "reset",      .gpio = 1 << 6 },
 203                 },
 204                 .leds           = {
 205                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 206                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 207                 },
 208         },
 209         [WRT54G] = {
 210                 .name           = "Linksys WRT54G/GS/GL",
 211                 .buttons        = {
 212                         { .name = "reset",      .gpio = 1 << 6 },
 213                         { .name = "ses",        .gpio = 1 << 4 },
 214                 },
 215                 .leds           = {
 216                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 217                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 218                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 219                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 220                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 221                 },
 222         },
 223         [WRTSL54GS] = {
 224                 .name           = "Linksys WRTSL54GS",
 225                 .buttons        = {
 226                         { .name = "reset",      .gpio = 1 << 6 },
 227                         { .name = "ses",        .gpio = 1 << 4 },
 228                 },
 229                 .leds           = {
 230                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 231                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 232                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 233                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 234                 },
 235         },
 236         [WRT54G3G] = {
 237                 .name           = "Linksys WRT54G3G",
 238                 .buttons        = {
 239                         { .name = "reset",      .gpio = 1 << 6 },
 240                         { .name = "3g",         .gpio = 1 << 4 },
 241                 },
 242                 .leds           = {
 243                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 244                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 245                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 246                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 247                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 248                 },
 249         },
 250         [WRT160N] = {
 251                 .name           = "Linksys WRT160N",
 252                 .buttons        = {
 253                         { .name = "reset",      .gpio = 1 << 6 },
 254                         { .name = "ses",        .gpio = 1 << 4 },
 255                 },
 256                 .leds           = {
 257                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 258                         { .name = "ses_blue",   .gpio = 1 << 5, .polarity = REVERSE },
 259                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 260                 },
 261         },
 262         [WRT300NV11] = {
 263                 .name           = "Linksys WRT300N V1.1",
 264                 .buttons        = {
 265                         { .name = "reset",     .gpio = 1 << 6 }, // "Reset" on back panel
 266                         { .name = "ses",       .gpio = 1 << 4 }, // "Reserved" on top panel
 267                 },
 268                 .leds           = {
 269                         { .name = "power",     .gpio = 1 << 1, .polarity = NORMAL  }, // "Power"
 270                         { .name = "ses_amber", .gpio = 1 << 3, .polarity = REVERSE }, // "Security" Amber
 271                         { .name = "ses_green", .gpio = 1 << 5, .polarity = REVERSE }, // "Security" Green
 272                 },
 273                 .platform_init = bcm57xx_init,
 274         },
 275         [WRT350N] = {
 276                 .name           = "Linksys WRT350N",
 277                 .buttons        = {
 278                         { .name = "reset",      .gpio = 1 << 6 },
 279                         { .name = "ses",        .gpio = 1 << 8 },
 280                 },
 281                 .leds           = {
 282                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 283                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 284                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 285                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 286                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 287                 },
 288                 .platform_init = bcm57xx_init,
 289         },
 290         [WRT600N] = {
 291                 .name           = "Linksys WRT600N",
 292                 .buttons        = {
 293                         { .name = "reset",      .gpio = 1 << 6 },
 294                         { .name = "ses",        .gpio = 1 << 7 },
 295                 },
 296                 .leds           = {
 297                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 298                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 299                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 300                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 301                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 302                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 303                 },
 304                 .platform_init = bcm57xx_init,
 305         },
 306         [WRT600NV11] = {
 307                 .name           = "Linksys WRT600N V1.1",
 308                 .buttons        = {
 309                         { .name = "reset",      .gpio = 1 << 6 },
 310                         { .name = "ses",        .gpio = 1 << 7 },
 311                 },
 312                 .leds           = {
 313                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 314                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 315                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 316                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 317                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 318                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 319                 },
 320                 .platform_init = bcm57xx_init,
 321         },
 322         [WRT610N] = {
 323                 .name           = "Linksys WRT610N",
 324                 .buttons        = {
 325                         { .name = "reset",      .gpio = 1 << 6 },
 326                         { .name = "ses",        .gpio = 1 << 8 },
 327                 },
 328                 .leds           = {
 329                         { .name = "power",      .gpio = 1 << 1,  .polarity = NORMAL }, // Power LED
 330                         { .name = "usb",        .gpio = 1 << 0,  .polarity = REVERSE }, // USB LED
 331                         { .name = "ses_amber",  .gpio = 1 << 3,  .polarity = REVERSE }, // WiFi protected setup LED amber
 332                         { .name = "ses_blue",   .gpio = 1 << 9,  .polarity = REVERSE }, // WiFi protected setup LED blue
 333                 },
 334         },
 335         /* Asus */
 336         [WLHDD] = {
 337                 .name           = "ASUS WL-HDD",
 338                 .buttons        = {
 339                         { .name = "reset",      .gpio = 1 << 6 },
 340                 },
 341                 .leds           = {
 342                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 343                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 344                 },
 345         },
 346         [WL300G] = {
 347                 .name           = "ASUS WL-300g",
 348                 .buttons        = {
 349                         { .name = "reset",      .gpio = 1 << 6 },
 350                 },
 351                 .leds           = {
 352                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 353                 },
 354         },
 355         [WL320GE] = {
 356                 .name           = "ASUS WL-320gE/WL-320gP",
 357                 .buttons        = {
 358                         { .name = "reset",      .gpio = 1 << 6 },
 359                 },
 360                 .leds           = {
 361                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 362                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 363                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 364                 },
 365         },
 366         [WL330GE] = {
 367                 .name           = "ASUS WL-330gE",
 368                 .buttons        = {
 369                         { .name = "reset",      .gpio = 1 << 2 },
 370                 },
 371                 .leds           = {
 372                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 373                 },
 374         },
 375         [WL500G] = {
 376                 .name           = "ASUS WL-500g",
 377                 .buttons        = {
 378                         { .name = "reset",      .gpio = 1 << 6 },
 379                 },
 380                 .leds           = {
 381                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 382                 },
 383         },
 384         [WL500GD] = {
 385                 .name           = "ASUS WL-500g Deluxe",
 386                 .buttons        = {
 387                         { .name = "reset",      .gpio = 1 << 6 },
 388                 },
 389                 .leds           = {
 390                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 391                 },
 392         },
 393         [WL500GP] = {
 394                 .name           = "ASUS WL-500g Premium",
 395                 .buttons        = {
 396                         { .name = "reset",      .gpio = 1 << 0 },
 397                         { .name = "ses",        .gpio = 1 << 4 },
 398                 },
 399                 .leds           = {
 400                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 401                 },
 402         },
 403         [WL500GPV2] = {
 404                 .name           = "ASUS WL-500g Premium V2",
 405                 .buttons        = {
 406                         { .name = "reset",      .gpio = 1 << 2 },
 407                         { .name = "ses",        .gpio = 1 << 3 },
 408                 },
 409                 .leds           = {
 410                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 411                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 412                 },
 413         },
 414         [WL500W] = {
 415                 .name           = "ASUS WL-500W",
 416                 .buttons        = {
 417                         { .name = "reset",      .gpio = 1 << 6 },
 418                         { .name = "ses",        .gpio = 1 << 7 },
 419                 },
 420                 .leds           = {
 421                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 422                 },
 423         },
 424         [WL520GC] = {
 425                 .name           = "ASUS WL-520GC",
 426                 .buttons        = {
 427                         { .name = "reset",      .gpio = 1 << 2 },
 428                         { .name = "ses",        .gpio = 1 << 3 },
 429                 },
 430                 .leds           = {
 431                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 432                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 433                 },
 434         },
 435         [WL520GU] = {
 436                 .name           = "ASUS WL-520gU",
 437                 .buttons        = {
 438                         { .name = "reset",      .gpio = 1 << 2 },
 439                         { .name = "ses",        .gpio = 1 << 3 },
 440                 },
 441                 .leds           = {
 442                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 443                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 444                 },
 445         },
 446         [ASUS_4702] = {
 447                 .name           = "ASUS (unknown, BCM4702)",
 448                 .buttons        = {
 449                         { .name = "reset",      .gpio = 1 << 6 },
 450                 },
 451                 .leds           = {
 452                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 453                 },
 454         },
 455         [WL700GE] = {
 456                 .name           = "ASUS WL-700gE",
 457                 .buttons        = {
 458                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 459                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 460                         { .name = "power",      .gpio = 1 << 0 }, // on front
 461                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 462                 },
 463                 .leds           = {
 464 #if 0
 465                         // GPIO that controls power led also enables/disables some essential functions
 466                         // - power to HDD
 467                         // - switch leds
 468                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 469 #endif
 470                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 471                 },
 472                 .platform_init = bcm4780_init,
 473         },
 474         /* Buffalo */
 475         [WHR_G54S] = {
 476                 .name           = "Buffalo WHR-G54S",
 477                 .buttons        = {
 478                         { .name = "reset",      .gpio = 1 << 4 },
 479                         { .name = "bridge",     .gpio = 1 << 5 },
 480                         { .name = "ses",        .gpio = 1 << 0 },
 481                 },
 482                 .leds           = {
 483                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 484                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 485                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 486                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 487                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 488                 },
 489         },
 490         [WBR2_G54] = {
 491                 .name           = "Buffalo WBR2-G54",
 492                 /* FIXME: verify */
 493                 .buttons        = {
 494                         { .name = "reset",      .gpio = 1 << 7 },
 495                 },
 496                 .leds           = {
 497                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 498                 },
 499         },
 500         [WHR_HP_G54] = {
 501                 .name           = "Buffalo WHR-HP-G54",
 502                 .buttons        = {
 503                         { .name = "reset",      .gpio = 1 << 4 },
 504                         { .name = "bridge",     .gpio = 1 << 5 },
 505                         { .name = "ses",        .gpio = 1 << 0 },
 506                 },
 507                 .leds           = {
 508                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 509                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 510                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 511                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 512                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 513                 },
 514         },
 515         [WHR_G125] = {
 516                 .name           = "Buffalo WHR-G125",
 517                 .buttons        = {
 518                         { .name = "reset",      .gpio = 1 << 4 },
 519                         { .name = "bridge",     .gpio = 1 << 5 },
 520                         { .name = "ses",        .gpio = 1 << 0 },
 521                 },
 522                 .leds           = {
 523                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 524                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 525                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 526                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 527                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 528                 },
 529         },
 530         [WHR2_A54G54] = {
 531                 .name           = "Buffalo WHR2-A54G54",
 532                 .buttons        = {
 533                         { .name = "reset",      .gpio = 1 << 4 },
 534                 },
 535                 .leds           = {
 536                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 537                 },
 538         },
 539         [WLA2_G54L] = {
 540                 .name           = "Buffalo WLA2-G54L",
 541                 /* FIXME: verify */
 542                 .buttons        = {
 543                         { .name = "reset",      .gpio = 1 << 7 },
 544                 },
 545                 .leds           = {
 546                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 547                 },
 548         },
 549         [WZR_G300N] = {
 550                 .name           = "Buffalo WZR-G300N",
 551                 .buttons        = {
 552                         { .name = "reset",      .gpio = 1 << 4 },
 553                 },
 554                 .leds           = {
 555                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 556                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 557                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 558                 },
 559         },
 560         [WZR_RS_G54] = {
 561                 .name           = "Buffalo WZR-RS-G54",
 562                 .buttons        = {
 563                         { .name = "ses",        .gpio = 1 << 0 },
 564                         { .name = "reset",      .gpio = 1 << 4 },
 565                 },
 566                 .leds           = {
 567                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 568                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 569                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 570                 },
 571         },
 572         [WZR_RS_G54HP] = {
 573                 .name           = "Buffalo WZR-RS-G54HP",
 574                 .buttons        = {
 575                         { .name = "ses",        .gpio = 1 << 0 },
 576                         { .name = "reset",      .gpio = 1 << 4 },
 577                 },
 578                 .leds           = {
 579                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 580                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 581                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 582                 },
 583         },
 584         [BUFFALO_UNKNOWN] = {
 585                 .name           = "Buffalo (unknown)",
 586                 .buttons        = {
 587                         { .name = "reset",      .gpio = 1 << 7 },
 588                 },
 589                 .leds           = {
 590                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 591                 },
 592         },
 593         [BUFFALO_UNKNOWN_4710] = {
 594                 .name           = "Buffalo (unknown, BCM4710)",
 595                 .buttons        = {
 596                         { .name = "reset",      .gpio = 1 << 4 },
 597                 },
 598                 .leds           = {
 599                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 600                 },
 601         },
 602         /* Siemens */
 603         [SE505V1] = {
 604                 .name           = "Siemens SE505 V1",
 605                 .buttons        = {
 606                         /* No usable buttons */
 607                 },
 608                 .leds           = {
 609 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 610                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 611                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 612                 },
 613         },
 614         [SE505V2] = {
 615                 .name           = "Siemens SE505 V2",
 616                 .buttons        = {
 617                         /* No usable buttons */
 618                 },
 619                 .leds           = {
 620                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 621                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 622                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 623                 },
 624         },
 625         /* US Robotics */
 626         [USR5461] = {
 627                 .name           = "U.S. Robotics USR5461",
 628                 .buttons        = {
 629                         /* No usable buttons */
 630                 },
 631                 .leds           = {
 632                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 633                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 634                 },
 635         },
 636         /* Dell */
 637         [TM2300] = {
 638                 .name           = "Dell TrueMobile 2300",
 639                 .buttons        = {
 640                         { .name = "reset",      .gpio = 1 << 0 },
 641                 },
 642                 .leds           = {
 643                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 644                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 645                 },
 646         },
 647         [TM2300V2] = {
 648                 .name           = "Dell TrueMobile 2300 v2",
 649                 .buttons        = {
 650                         { .name = "reset",      .gpio = 1 << 0 },
 651                 },
 652                 .leds           = {
 653                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 654                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 655                 },
 656         },
 657         /* Motorola */
 658         [WE800G] = {
 659                 .name           = "Motorola WE800G",
 660                 .buttons        = {
 661                         { .name = "reset",      .gpio = 1 << 0 },
 662                 },
 663                 .leds           = {
 664                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 665                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 666                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 667                 },
 668         },
 669         [WR850GV1] = {
 670                 .name           = "Motorola WR850G V1",
 671                 .buttons        = {
 672                         { .name = "reset",      .gpio = 1 << 0 },
 673                 },
 674                 .leds           = {
 675                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 676                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 677                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 678                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 679                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 680                 },
 681         },
 682         [WR850GV2V3] = {
 683                 .name           = "Motorola WR850G V2/V3",
 684                 .buttons        = {
 685                         { .name = "reset",      .gpio = 1 << 5 },
 686                 },
 687                 .leds           = {
 688                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 689                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 690                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 691                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 692                 },
 693         },
 694         [WR850GP] = {
 695                 .name           = "Motorola WR850GP",
 696                 .buttons        = {
 697                         { .name = "reset",      .gpio = 1 << 5 },
 698                 },
 699                 .leds           = {
 700                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 701                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 702                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 703                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 704                 },
 705         },
 706
 707         /* Belkin */
 708         [BELKIN_UNKNOWN] = {
 709                 .name           = "Belkin (unknown)",
 710                 /* FIXME: verify & add detection */
 711                 .buttons        = {
 712                         { .name = "reset",      .gpio = 1 << 7 },
 713                 },
 714                 .leds           = {
 715                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 716                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 717                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 718                 },
 719         },
 720         /* Netgear */
 721         [WGT634U] = {
 722                 .name           = "Netgear WGT634U",
 723                 .buttons        = {
 724                         { .name = "reset",      .gpio = 1 << 2 },
 725                 },
 726                 .leds           = {
 727                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 728                 },
 729         },
 730         /* Trendware */
 731         [TEW411BRPP] = {
 732                 .name           = "Trendware TEW411BRP+",
 733                 .buttons        = {
 734                         { /* No usable buttons */ },
 735                 },
 736                 .leds           = {
 737                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 738                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 739                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 740                 },
 741         },
 742         /* SimpleTech */
 743         [STI_NAS] = {
 744                 .name      = "SimpleTech SimpleShare NAS",
 745                 .buttons        = {
 746                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 747                         { .name = "power",      .gpio = 1 << 0 }, // on back
 748                 },
 749                 .leds      = {
 750                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 751                 },
 752                 .platform_init = bcm4780_init,
 753         },
 754         /* D-Link */
 755         [DIR130] = {
 756                 .name     = "D-Link DIR-130",
 757                 .buttons        = {
 758                         { .name = "reset",      .gpio = 1 << 3},
 759                         { .name = "reserved",   .gpio = 1 << 7},
 760                 },
 761                 .leds      = {
 762                         { .name = "diag",       .gpio = 1 << 0},
 763                         { .name = "blue",       .gpio = 1 << 6},
 764                 },
 765         },
 766         [DIR320] = {
 767                 .name     = "D-Link DIR-320",
 768                 .buttons        = {
 769                         { .name = "reserved",   .gpio = 1 << 6},
 770                         { .name = "reset",      .gpio = 1 << 7},
 771                 },
 772                 .leds      = {
 773                         { .name = "wlan",       .gpio = 1 << 0, .polarity = NORMAL },
 774                         { .name = "diag",       .gpio = 1 << 1, .polarity = NORMAL }, /* "status led */
 775                         { .name = "red",        .gpio = 1 << 3, .polarity = REVERSE },
 776                         { .name = "blue",       .gpio = 1 << 4, .polarity = REVERSE },
 777                         { .name = "usb",        .gpio = 1 << 5, .polarity = NORMAL },
 778                 },
 779         },
 780         [DIR330] = {
 781                 .name     = "D-Link DIR-330",
 782                 .buttons        = {
 783                         { .name = "reset",      .gpio = 1 << 3},
 784                         { .name = "reserved",   .gpio = 1 << 7},
 785                 },
 786                 .leds      = {
 787                         { .name = "diag",       .gpio = 1 << 0},
 788                         { .name = "usb",        .gpio = 1 << 4},
 789                         { .name = "blue",       .gpio = 1 << 6},
 790                 },
 791         },
 792         [DWL3150] = {
 793                 .name   = "D-Link DWL-3150",
 794                 .buttons        = {
 795                         { .name = "reset",      .gpio = 1 << 7},
 796                 },
 797                 .leds     = {
 798                         { .name = "diag",       .gpio = 1 << 2},
 799                         { .name = "status",     .gpio = 1 << 1},
 800                 },
 801         },
 802         /* Double check */
 803         [WL105B] = {
 804                 .name   = "Sitecom WL-105b",
 805                 .buttons        = {
 806                         { .name = "reset",      .gpio = 1 << 10},
 807                 },
 808                 .leds     = {
 809                         { .name = "wlan",       .gpio = 1 << 4},
 810                         { .name = "power",      .gpio = 1 << 3},
 811                 },
 812         },
 813         /* Askey (and clones) */
 814         [RT210W] = {
 815                 .name           = "Askey RT210W",
 816                 .buttons        = {
 817                         /* Power button is hard-wired to hardware reset */
 818                         /* but is also connected to GPIO 7 (probably for bootloader recovery)  */
 819                         { .name = "power",      .gpio = 1 << 7},
 820                 },
 821                 .leds           = {
 822                         /* These were verified and named based on Belkin F5D4230-4 v1112 */
 823                         { .name = "connected",  .gpio = 1 << 0, .polarity = REVERSE },
 824                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 825                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 826                 },
 827         },
 828 };
 829
 830 static struct platform_t __init *platform_detect(void)
 831 {
 832         char *boardnum, *boardtype, *buf;
 833
 834         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 835                 return &platforms[WGT634U];
 836
 837         /* Look for a model identifier */
 838
 839         /* Based on "model_name" */
 840         if ((buf = nvram_get("model_name"))) {
 841                 if (!strcmp(buf, "DIR-130"))
 842                         return &platforms[DIR130];
 843                 if (!strcmp(buf, "DIR-330"))
 844                         return &platforms[DIR330];
 845         }
 846
 847         /* Based on "wsc_modelname */
 848         if ((buf = nvram_get("wsc_modelname"))) {
 849                 if (!strcmp(buf, "WRT610N"))
 850                         return &platforms[WRT610N];
 851         }
 852
 853         /* Based on "model_no" */
 854         if ((buf = nvram_get("model_no"))) {
 855                 if (startswith(buf,"WL700")) /* WL700* */
 856                         return &platforms[WL700GE];
 857         }
 858
 859         /* Based on "hardware_version" */
 860         if ((buf = nvram_get("hardware_version"))) {
 861                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 862                         return &platforms[WL500GPV2];
 863                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 864                         return &platforms[WL520GC];
 865                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 866                         return &platforms[WL520GU];
 867                 if (startswith(buf,"WL330GE-")) /* WL330GE-* */
 868                         return &platforms[WL330GE];
 869         }
 870
 871         /* Based on "ModelId" */
 872         if ((buf = nvram_get("ModelId"))) {
 873                 if (!strcmp(buf, "WR850GP"))
 874                         return &platforms[WR850GP];
 875                 if (!strcmp(buf, "WR850G"))
 876                         return &platforms[WR850GV2V3];
 877                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 878                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 879                 if (startswith(buf,"WE800G")) /* WE800G* */
 880                         return &platforms[WE800G];
 881         }
 882
 883         /* Buffalo */
 884         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 885                 /* Buffalo hardware, check id for specific hardware matches */
 886                 if (!strcmp(buf, "29bb0332"))
 887                         return &platforms[WBR2_G54];
 888                 if (!strcmp(buf, "29129"))
 889                         return &platforms[WLA2_G54L];
 890                 if (!strcmp(buf, "30189"))
 891                         return &platforms[WHR_HP_G54];
 892                 if (!strcmp(buf, "32093"))
 893                         return &platforms[WHR_G125];
 894                 if (!strcmp(buf, "30182"))
 895                         return &platforms[WHR_G54S];
 896                 if (!strcmp(buf, "290441dd"))
 897                         return &platforms[WHR2_A54G54];
 898                 if (!strcmp(buf, "31120"))
 899                         return &platforms[WZR_G300N];
 900                 if (!strcmp(buf, "30083"))
 901                         return &platforms[WZR_RS_G54];
 902                 if (!strcmp(buf, "30103"))
 903                         return &platforms[WZR_RS_G54HP];
 904         }
 905
 906         /* no easy model number, attempt to guess */
 907         boardnum = getvar("boardnum");
 908         boardtype = getvar("boardtype");
 909
 910         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 911                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 912                         return &platforms[WRT600NV11];
 913
 914         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 915                         return &platforms[WRT600N];
 916         }
 917
 918         if (startswith(getvar("pmon_ver"), "CFE")) {
 919                 /* CFE based - newer hardware */
 920                 if (!strcmp(boardnum, "42")) { /* Linksys */
 921                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("boot_hw_model"), "WRT300N") && !strcmp(getvar("boot_hw_ver"), "1.1"))
 922                                 return &platforms[WRT300NV11];
 923
 924                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 925                                 return &platforms[WRT350N];
 926
 927                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 928                                 return &platforms[WRT54G3G];
 929
 930                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 931                                 return &platforms[WRTSL54GS];
 932
 933                         if (!strcmp(boardtype, "0x0472"))
 934                                 return &platforms[WRT160N];
 935
 936                         /* default to WRT54G */
 937                         return &platforms[WRT54G];
 938                 }
 939                 if (!strcmp(boardnum, "1024") && !strcmp(boardtype, "0x0446"))
 940                         return &platforms[WAP54GV2];
 941
 942                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 943                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 944                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 945                 }
 946
 947                 if (!strcmp(boardnum, "45")) { /* ASUS */
 948                         if (!strcmp(boardtype,"0x042f"))
 949                                 return &platforms[WL500GP];
 950                         else if (!strcmp(boardtype,"0x0472"))
 951                                 return &platforms[WL500W];
 952                         else if (!strcmp(boardtype,"0x467"))
 953                                 return &platforms[WL320GE];
 954                         else
 955                                 return &platforms[WL500GD];
 956                 }
 957
 958                 if (!strcmp(boardnum, "10496"))
 959                         return &platforms[USR5461];
 960
 961                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 962                         return &platforms[SE505V2];
 963
 964                 if (!strcmp(boardtype, "0x048e") && !strcmp(getvar("boardrev"),"0x35") &&
 965                                 !strcmp(getvar("boardflags"), "0x750")) /* D-Link DIR-320 */
 966                         return &platforms[DIR320];
 967
 968         } else { /* PMON based - old stuff */
 969                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 970                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 971                         return &platforms[WR850GV1];
 972                 }
 973                 if (startswith(boardtype, "bcm94710dev")) {
 974                         if (!strcmp(boardnum, "42"))
 975                                 return &platforms[WRT54GV1];
 976                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 977                                 return &platforms[WAP54GV1];
 978                 }
 979                 if (startswith(getvar("hardware_version"), "WL500-"))
 980                         return &platforms[WL500G];
 981                 if (startswith(getvar("hardware_version"), "WL300-")) {
 982                         /* Either WL-300g or WL-HDD, do more extensive checks */
 983                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 984                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 985                                 return &platforms[WLHDD];
 986                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 987                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 988                                 return &platforms[WL300G];
 989                 }
 990                 /* Sitecom WL-105b */
 991                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 992                         return &platforms[WL105B];
 993
 994                 /* unknown asus stuff, probably bcm4702 */
 995                 if (startswith(boardnum, "asusX"))
 996                         return &platforms[ASUS_4702];
 997
 998                 /* bcm4702 based Askey RT210W clones, Including:
 999                  * Askey RT210W (duh?)
1000                  * Siemens SE505v1
1001                  * Belkin F5D7230-4 before version v1444 (MiniPCI slot, not integrated)
1002                  */
1003                 if (!strcmp(boardtype,"bcm94710r4")
1004                  && !strcmp(boardnum ,"100")
1005                  && !strcmp(getvar("pmon_ver"),"v1.03.12.bk")
1006                    ){
1007                         return &platforms[RT210W];
1008                 }
1009         }
1010
1011         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
1012                 if (startswith(boardtype, "bcm94710ap"))
1013                         return &platforms[BUFFALO_UNKNOWN_4710];
1014                 else
1015                         return &platforms[BUFFALO_UNKNOWN];
1016         }
1017
1018         if (startswith(getvar("CFEver"), "MotoWRv2") ||
1019                 startswith(getvar("CFEver"), "MotoWRv3") ||
1020                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
1021
1022                 return &platforms[WR850GV2V3];
1023         }
1024
1025         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
1026                 return &platforms[TEW411BRPP];
1027         }
1028
1029         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
1030                 return &platforms[STI_NAS];
1031
1032         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
1033                 return &platforms[DWL3150];
1034
1035         /* not found */
1036         return NULL;
1037 }
1038
1039 static void register_buttons(struct button_t *b)
1040 {
1041         for (; b->name; b++)
1042                 platform.button_mask |= b->gpio;
1043
1044         platform.button_mask &= ~gpiomask;
1045
1046         gpio_outen(platform.button_mask, 0);
1047         gpio_control(platform.button_mask, 0);
1048         platform.button_polarity = gpio_in() & platform.button_mask;
1049         gpio_intpolarity(platform.button_mask, platform.button_polarity);
1050         gpio_setintmask(platform.button_mask, platform.button_mask);
1051
1052         gpio_set_irqenable(1, button_handler);
1053 }
1054
1055 static void unregister_buttons(struct button_t *b)
1056 {
1057         gpio_setintmask(platform.button_mask, 0);
1058
1059         gpio_set_irqenable(0, button_handler);
1060 }
1061
1062
1063 #ifndef LINUX_2_4
1064 static void add_msg(struct event_t *event, char *msg, int argv)
1065 {
1066         char *s;
1067
1068         if (argv)
1069                 return;
1070
1071         s = skb_put(event->skb, strlen(msg) + 1);
1072         strcpy(s, msg);
1073 }
1074
1075 static void hotplug_button(struct work_struct *work)
1076 {
1077         struct event_t *event = container_of(work, struct event_t, wq);
1078         char *s;
1079
1080         if (!uevent_sock)
1081                 return;
1082
1083         event->skb = alloc_skb(2048, GFP_KERNEL);
1084
1085         s = skb_put(event->skb, strlen(event->action) + 2);
1086         sprintf(s, "%s@", event->action);
1087         fill_event(event);
1088
1089         NETLINK_CB(event->skb).dst_group = 1;
1090         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
1091
1092         kfree(event);
1093 }
1094
1095 #else /* !LINUX_2_4 */
1096 static inline char *kzalloc(unsigned int size, unsigned int gfp)
1097 {
1098         char *p;
1099
1100         p = kmalloc(size, gfp);
1101         if (p == NULL)
1102                 return NULL;
1103
1104         memset(p, 0, size);
1105
1106         return p;
1107 }
1108
1109 static void add_msg(struct event_t *event, char *msg, int argv)
1110 {
1111         if (argv)
1112                 event->argv[event->anr++] = event->scratch;
1113         else
1114                 event->envp[event->enr++] = event->scratch;
1115
1116         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
1117 }
1118
1119 static void hotplug_button(struct event_t *event)
1120 {
1121         char *scratch = kzalloc(256, GFP_KERNEL);
1122         event->scratch = scratch;
1123
1124         add_msg(event, hotplug_path, 1);
1125         add_msg(event, "button", 1);
1126         fill_event(event);
1127         call_usermodehelper (event->argv[0], event->argv, event->envp);
1128         kfree(scratch);
1129         kfree(event);
1130 }
1131 #endif /* !LINUX_2_4 */
1132
1133 static int fill_event (struct event_t *event)
1134 {
1135         static char buf[128];
1136
1137         add_msg(event, "HOME=/", 0);
1138         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1139         add_msg(event, "SUBSYSTEM=button", 0);
1140         snprintf(buf, 128, "ACTION=%s", event->action);
1141         add_msg(event, buf, 0);
1142         snprintf(buf, 128, "BUTTON=%s", event->name);
1143         add_msg(event, buf, 0);
1144         snprintf(buf, 128, "SEEN=%ld", event->seen);
1145         add_msg(event, buf, 0);
1146 #ifndef LINUX_2_4
1147         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1148         add_msg(event, buf, 0);
1149 #endif
1150
1151         return 0;
1152 }
1153
1154
1155 #ifndef LINUX_2_4
1156 static irqreturn_t button_handler(int irq, void *dev_id)
1157 #else
1158 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1159 #endif
1160 {
1161         struct button_t *b;
1162         u32 in, changed;
1163
1164         in = gpio_in() & platform.button_mask;
1165         gpio_intpolarity(platform.button_mask, in);
1166         changed = platform.button_polarity ^ in;
1167         platform.button_polarity = in;
1168
1169         changed &= ~gpio_outen(0, 0);
1170
1171         for (b = platform.buttons; b->name; b++) {
1172                 struct event_t *event;
1173
1174                 if (!(b->gpio & changed)) continue;
1175
1176                 b->pressed ^= 1;
1177
1178                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1179                         event->seen = (jiffies - b->seen)/HZ;
1180                         event->name = b->name;
1181                         event->action = b->pressed ? "pressed" : "released";
1182 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1183                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1184 #else
1185                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1186 #endif
1187                         schedule_work(&event->wq);
1188                 }
1189
1190                 b->seen = jiffies;
1191         }
1192         return IRQ_HANDLED;
1193 }
1194
1195 static void register_leds(struct led_t *l)
1196 {
1197         struct proc_dir_entry *p;
1198         u32 mask = 0;
1199         u32 oe_mask = 0;
1200         u32 val = 0;
1201
1202         leds = proc_mkdir("led", diag);
1203         if (!leds)
1204                 return;
1205
1206         for(; l->name; l++) {
1207                 if (l->gpio & gpiomask)
1208                         continue;
1209
1210                 if (l->gpio & GPIO_TYPE_EXTIF) {
1211                         l->state = 0;
1212                         set_led_extif(l);
1213                 } else {
1214                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1215                         mask |= l->gpio;
1216                         val |= (l->polarity == NORMAL)?0:l->gpio;
1217                 }
1218
1219                 if (l->polarity == INPUT) continue;
1220
1221                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1222                         l->proc.type = PROC_LED;
1223                         l->proc.ptr = l;
1224                         p->data = (void *) &l->proc;
1225                         p->proc_fops = &diag_proc_fops;
1226                 }
1227         }
1228
1229         gpio_outen(mask, oe_mask);
1230         gpio_control(mask, 0);
1231         gpio_out(mask, val);
1232         gpio_setintmask(mask, 0);
1233 }
1234
1235 static void unregister_leds(struct led_t *l)
1236 {
1237         for(; l->name; l++)
1238                 remove_proc_entry(l->name, leds);
1239
1240         remove_proc_entry("led", diag);
1241 }
1242
1243 static void set_led_extif(struct led_t *led)
1244 {
1245         gpio_set_extif(led->gpio, led->state);
1246 }
1247
1248 static void led_flash(unsigned long dummy) {
1249         struct led_t *l;
1250         u32 mask = 0;
1251         u8 extif_blink = 0;
1252
1253         for (l = platform.leds; l->name; l++) {
1254                 if (l->flash) {
1255                         if (l->gpio & GPIO_TYPE_EXTIF) {
1256                                 extif_blink = 1;
1257                                 l->state = !l->state;
1258                                 set_led_extif(l);
1259                         } else {
1260                                 mask |= l->gpio;
1261                         }
1262                 }
1263         }
1264
1265         mask &= ~gpiomask;
1266         if (mask) {
1267                 u32 val = ~gpio_in();
1268
1269                 gpio_outen(mask, mask);
1270                 gpio_control(mask, 0);
1271                 gpio_out(mask, val);
1272         }
1273         if (mask || extif_blink) {
1274                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1275         }
1276 }
1277
1278 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1279 {
1280 #ifdef LINUX_2_4
1281         struct inode *inode = file->f_dentry->d_inode;
1282         struct proc_dir_entry *dent = inode->u.generic_ip;
1283 #else
1284         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1285 #endif
1286         char *page;
1287         int len = 0;
1288
1289         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1290                 return -ENOBUFS;
1291
1292         if (dent->data != NULL) {
1293                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1294                 switch (handler->type) {
1295                         case PROC_LED: {
1296                                 struct led_t * led = (struct led_t *) handler->ptr;
1297                                 if (led->flash) {
1298                                         len = sprintf(page, "f\n");
1299                                 } else {
1300                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1301                                                 len = sprintf(page, "%d\n", led->state);
1302                                         } else {
1303                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1304                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1305                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1306                                         }
1307                                 }
1308                                 break;
1309                         }
1310                         case PROC_MODEL:
1311                                 len = sprintf(page, "%s\n", platform.name);
1312                                 break;
1313                         case PROC_GPIOMASK:
1314                                 len = sprintf(page, "0x%04x\n", gpiomask);
1315                                 break;
1316                 }
1317         }
1318         len += 1;
1319
1320         if (*ppos < len) {
1321                 len = min_t(int, len - *ppos, count);
1322                 if (copy_to_user(buf, (page + *ppos), len)) {
1323                         kfree(page);
1324                         return -EFAULT;
1325                 }
1326                 *ppos += len;
1327         } else {
1328                 len = 0;
1329         }
1330
1331         kfree(page);
1332         return len;
1333 }
1334
1335
1336 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1337 {
1338 #ifdef LINUX_2_4
1339         struct inode *inode = file->f_dentry->d_inode;
1340         struct proc_dir_entry *dent = inode->u.generic_ip;
1341 #else
1342         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1343 #endif
1344         char *page;
1345         int ret = -EINVAL;
1346
1347         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1348                 return -ENOBUFS;
1349
1350         if (copy_from_user(page, buf, count)) {
1351                 kfree(page);
1352                 return -EINVAL;
1353         }
1354         page[count] = 0;
1355
1356         if (dent->data != NULL) {
1357                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1358                 switch (handler->type) {
1359                         case PROC_LED: {
1360                                 struct led_t *led = (struct led_t *) handler->ptr;
1361                                 int p = (led->polarity == NORMAL ? 0 : 1);
1362
1363                                 if (page[0] == 'f') {
1364                                         led->flash = 1;
1365                                         led_flash(0);
1366                                 } else {
1367                                         led->flash = 0;
1368                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1369                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1370                                                 set_led_extif(led);
1371                                         } else {
1372                                                 gpio_outen(led->gpio, led->gpio);
1373                                                 gpio_control(led->gpio, 0);
1374                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1375                                         }
1376                                 }
1377                                 break;
1378                         }
1379                         case PROC_GPIOMASK:
1380                                 gpiomask = simple_strtoul(page, NULL, 0);
1381
1382                                 if (platform.buttons) {
1383                                         unregister_buttons(platform.buttons);
1384                                         register_buttons(platform.buttons);
1385                                 }
1386
1387                                 if (platform.leds) {
1388                                         unregister_leds(platform.leds);
1389                                         register_leds(platform.leds);
1390                                 }
1391                                 break;
1392                 }
1393                 ret = count;
1394         }
1395
1396         kfree(page);
1397         return ret;
1398 }
1399
1400 static int __init diag_init(void)
1401 {
1402         static struct proc_dir_entry *p;
1403         static struct platform_t *detected;
1404
1405         detected = platform_detect();
1406         if (!detected) {
1407                 printk(MODULE_NAME ": Router model not detected.\n");
1408                 return -ENODEV;
1409         }
1410         memcpy(&platform, detected, sizeof(struct platform_t));
1411
1412         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1413         if (platform.platform_init != NULL) {
1414                 platform.platform_init();
1415         }
1416
1417         if (!(diag = proc_mkdir("diag", NULL))) {
1418                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1419                 return -EINVAL;
1420         }
1421
1422         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1423                 p->data = (void *) &proc_model;
1424                 p->proc_fops = &diag_proc_fops;
1425         }
1426
1427         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1428                 p->data = (void *) &proc_gpiomask;
1429                 p->proc_fops = &diag_proc_fops;
1430         }
1431
1432         if (platform.buttons)
1433                 register_buttons(platform.buttons);
1434
1435         if (platform.leds)
1436                 register_leds(platform.leds);
1437
1438         return 0;
1439 }
1440
1441 static void __exit diag_exit(void)
1442 {
1443         del_timer(&led_timer);
1444
1445         if (platform.buttons)
1446                 unregister_buttons(platform.buttons);
1447
1448         if (platform.leds)
1449                 unregister_leds(platform.leds);
1450
1451         remove_proc_entry("model", diag);
1452         remove_proc_entry("gpiomask", diag);
1453         remove_proc_entry("diag", NULL);
1454 }
1455
1456 module_init(diag_init);
1457 module_exit(diag_exit);
1458
1459 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1460 MODULE_LICENSE("GPL");