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  *                    Felix Fietkau <nbd@openwrt.org>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * $Id$
  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 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  32 #include <linux/kobject.h>
  33 #include <linux/workqueue.h>
  34 #define hotplug_path uevent_helper
  35 #else
  36 #include <linux/tqueue.h>
  37 #define INIT_WORK INIT_TQUEUE
  38 #define schedule_work schedule_task
  39 #define work_struct tq_struct
  40 #endif
  41
  42 #include "gpio.h"
  43 #include "diag.h"
  44 #define getvar(str) (nvram_get(str)?:"")
  45
  46 static unsigned int gpiomask = 0;
  47 module_param(gpiomask, int, 0644);
  48
  49 enum {
  50         /* Linksys */
  51         WAP54GV1,
  52         WAP54GV3,
  53         WRT54GV1,
  54         WRT54G,
  55         WRTSL54GS,
  56         WRT54G3G,
  57         WRT350N,
  58
  59         /* ASUS */
  60         WLHDD,
  61         WL300G,
  62         WL500G,
  63         WL500GD,
  64         WL500GP,
  65         WL500W,
  66         ASUS_4702,
  67         WL700GE,
  68
  69         /* Buffalo */
  70         WBR2_G54,
  71         WHR_G54S,
  72         WHR_HP_G54,
  73         WHR2_A54G54,
  74         WLA2_G54L,
  75         WZR_G300N,
  76         WZR_RS_G54,
  77         WZR_RS_G54HP,
  78         BUFFALO_UNKNOWN,
  79         BUFFALO_UNKNOWN_4710,
  80
  81         /* Siemens */
  82         SE505V1,
  83         SE505V2,
  84
  85         /* US Robotics */
  86         USR5461,
  87
  88         /* Dell */
  89         TM2300,
  90
  91         /* Motorola */
  92         WE800G,
  93         WR850GV1,
  94         WR850GV2V3,
  95
  96         /* Belkin */
  97         BELKIN_UNKNOWN,
  98
  99         /* Netgear */
 100         WGT634U,
 101
 102         /* Trendware */
 103         TEW411BRPP,
 104 };
 105
 106 static void __init wl700ge_init(void) {
 107                 int pin = 1 << 3;
 108
 109                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 110                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 111                 gpio_outen(pin, pin);
 112                 gpio_control(pin, 0);
 113                 gpio_out(pin, pin);
 114
 115                 /* Wait 5s, so the HDD can spin up */
 116                 set_current_state(TASK_INTERRUPTIBLE);
 117                 schedule_timeout(HZ * 5);
 118 }
 119
 120 static struct platform_t __initdata platforms[] = {
 121         /* Linksys */
 122         [WAP54GV1] = {
 123                 .name           = "Linksys WAP54G V1",
 124                 .buttons        = {
 125                         { .name = "reset",      .gpio = 1 << 0 },
 126                 },
 127                 .leds           = {
 128                         { .name = "diag",       .gpio = 1 << 3 },
 129                         { .name = "wlan",       .gpio = 1 << 4 },
 130                 },
 131         },
 132         [WAP54GV3] = {
 133                 .name           = "Linksys WAP54G V3",
 134                 .buttons        = {
 135                         /* FIXME: verify this */
 136                         { .name = "reset",      .gpio = 1 << 7 },
 137                         { .name = "ses",        .gpio = 1 << 0 },
 138                 },
 139                 .leds           = {
 140                         /* FIXME: diag? */
 141                         { .name = "ses",        .gpio = 1 << 1 },
 142                 },
 143         },
 144         [WRT54GV1] = {
 145                 .name           = "Linksys WRT54G V1.x",
 146                 .buttons        = {
 147                         { .name = "reset",      .gpio = 1 << 6 },
 148                 },
 149                 .leds           = {
 150                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 151                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 152                 },
 153         },
 154         [WRT54G] = {
 155                 .name           = "Linksys WRT54G/GS/GL",
 156                 .buttons        = {
 157                         { .name = "reset",      .gpio = 1 << 6 },
 158                         { .name = "ses",        .gpio = 1 << 4 },
 159                 },
 160                 .leds           = {
 161                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 162                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 163                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 164                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 165                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 166                 },
 167         },
 168         [WRTSL54GS] = {
 169                 .name           = "Linksys WRTSL54GS",
 170                 .buttons        = {
 171                         { .name = "reset",      .gpio = 1 << 6 },
 172                         { .name = "ses",        .gpio = 1 << 4 },
 173                 },
 174                 .leds           = {
 175                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 176                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 177                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 178                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 179                 },
 180         },
 181         [WRT54G3G] = {
 182                 .name           = "Linksys WRT54G3G",
 183                 .buttons        = {
 184                         { .name = "reset",      .gpio = 1 << 6 },
 185                         { .name = "3g",         .gpio = 1 << 4 },
 186                 },
 187                 .leds           = {
 188                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 189                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 190                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 191                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 192                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 193                 },
 194         },
 195         [WRT350N] = {
 196                 .name           = "Linksys WRT350N",
 197                 .buttons        = {
 198                         { .name = "reset",      .gpio = 1 << 6 },
 199                         { .name = "ses",        .gpio = 1 << 8 },
 200                 },
 201                 .leds           = {
 202                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 203                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 204                 },
 205         },
 206         /* Asus */
 207         [WLHDD] = {
 208                 .name           = "ASUS WL-HDD",
 209                 .buttons        = {
 210                         { .name = "reset",      .gpio = 1 << 6 },
 211                 },
 212                 .leds           = {
 213                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 214                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 215                 },
 216         },
 217         [WL300G] = {
 218                 .name           = "ASUS WL-300g",
 219                 .buttons        = {
 220                         { .name = "reset",      .gpio = 1 << 6 },
 221                 },
 222                 .leds           = {
 223                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 224                 },
 225         },
 226         [WL500G] = {
 227                 .name           = "ASUS WL-500g",
 228                 .buttons        = {
 229                         { .name = "reset",      .gpio = 1 << 6 },
 230                 },
 231                 .leds           = {
 232                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 233                 },
 234         },
 235         [WL500GD] = {
 236                 .name           = "ASUS WL-500g Deluxe",
 237                 .buttons        = {
 238                         { .name = "reset",      .gpio = 1 << 6 },
 239                 },
 240                 .leds           = {
 241                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 242                 },
 243         },
 244         [WL500GP] = {
 245                 .name           = "ASUS WL-500g Premium",
 246                 .buttons        = {
 247                         { .name = "reset",      .gpio = 1 << 0 },
 248                         { .name = "ses",        .gpio = 1 << 4 },
 249                 },
 250                 .leds           = {
 251                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 252                 },
 253         },
 254         [WL500W] = {
 255                 .name           = "ASUS WL-500W",
 256                 .buttons        = {
 257                         { .name = "reset",      .gpio = 1 << 6 },
 258                         { .name = "ses",        .gpio = 1 << 7 },
 259                 },
 260                 .leds           = {
 261                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 262                 },
 263         },
 264         [ASUS_4702] = {
 265                 .name           = "ASUS (unknown, BCM4702)",
 266                 .buttons        = {
 267                         { .name = "reset",      .gpio = 1 << 6 },
 268                 },
 269                 .leds           = {
 270                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 271                 },
 272         },
 273         [WL700GE] = {
 274                 .name           = "ASUS WL-700gE",
 275                 .buttons        = {
 276                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 277                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 278                         { .name = "power",      .gpio = 1 << 0 }, // on front
 279                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 280                 },
 281                 .leds           = {
 282 #if 0
 283                         // GPIO that controls power led also enables/disables some essential functions
 284                         // - power to HDD
 285                         // - switch leds
 286                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 287 #endif
 288                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 289                 },
 290                 .platform_init = wl700ge_init,
 291         },
 292         /* Buffalo */
 293         [WHR_G54S] = {
 294                 .name           = "Buffalo WHR-G54S",
 295                 .buttons        = {
 296                         { .name = "reset",      .gpio = 1 << 4 },
 297                         { .name = "bridge",     .gpio = 1 << 5 },
 298                         { .name = "ses",        .gpio = 1 << 0 },
 299                 },
 300                 .leds           = {
 301                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 302                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 303                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 304                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 305                 },
 306         },
 307         [WBR2_G54] = {
 308                 .name           = "Buffalo WBR2-G54",
 309                 /* FIXME: verify */
 310                 .buttons        = {
 311                         { .name = "reset",      .gpio = 1 << 7 },
 312                 },
 313                 .leds           = {
 314                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 315                 },
 316         },
 317         [WHR_HP_G54] = {
 318                 .name           = "Buffalo WHR-HP-G54",
 319                 .buttons        = {
 320                         { .name = "reset",      .gpio = 1 << 4 },
 321                         { .name = "bridge",     .gpio = 1 << 5 },
 322                         { .name = "ses",        .gpio = 1 << 0 },
 323                 },
 324                 .leds           = {
 325                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 326                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 327                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 328                 },
 329         },
 330         [WHR2_A54G54] = {
 331                 .name           = "Buffalo WHR2-A54G54",
 332                 .buttons        = {
 333                         { .name = "reset",      .gpio = 1 << 4 },
 334                 },
 335                 .leds           = {
 336                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 337                 },
 338         },
 339         [WLA2_G54L] = {
 340                 .name           = "Buffalo WLA2-G54L",
 341                 /* FIXME: verify */
 342                 .buttons        = {
 343                         { .name = "reset",      .gpio = 1 << 7 },
 344                 },
 345                 .leds           = {
 346                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 347                 },
 348         },
 349         [WZR_G300N] = {
 350                 .name           = "Buffalo WZR-G300N",
 351                 .buttons        = {
 352                         { .name = "reset",      .gpio = 1 << 4 },
 353                 },
 354                 .leds           = {
 355                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 356                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 357                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 358                 },
 359         },
 360         [WZR_RS_G54] = {
 361                 .name           = "Buffalo WZR-RS-G54",
 362                 .buttons        = {
 363                         { .name = "ses",        .gpio = 1 << 0 },
 364                         { .name = "reset",      .gpio = 1 << 4 },
 365                 },
 366                 .leds           = {
 367                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 368                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 369                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 370                 },
 371         },
 372         [WZR_RS_G54HP] = {
 373                 .name           = "Buffalo WZR-RS-G54HP",
 374                 .buttons        = {
 375                         { .name = "ses",        .gpio = 1 << 0 },
 376                         { .name = "reset",      .gpio = 1 << 4 },
 377                 },
 378                 .leds           = {
 379                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 380                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 381                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 382                 },
 383         },
 384         [BUFFALO_UNKNOWN] = {
 385                 .name           = "Buffalo (unknown)",
 386                 .buttons        = {
 387                         { .name = "reset",      .gpio = 1 << 7 },
 388                 },
 389                 .leds           = {
 390                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 391                 },
 392         },
 393         [BUFFALO_UNKNOWN_4710] = {
 394                 .name           = "Buffalo (unknown, BCM4710)",
 395                 .buttons        = {
 396                         { .name = "reset",      .gpio = 1 << 4 },
 397                 },
 398                 .leds           = {
 399                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 400                 },
 401         },
 402         /* Siemens */
 403         [SE505V1] = {
 404                 .name           = "Siemens SE505 V1",
 405                 .buttons        = {
 406                         /* No usable buttons */
 407                 },
 408                 .leds           = {
 409                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 410                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 411                 },
 412         },
 413         [SE505V2] = {
 414                 .name           = "Siemens SE505 V2",
 415                 .buttons        = {
 416                         /* No usable buttons */
 417                 },
 418                 .leds           = {
 419                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 420                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 421                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 422                 },
 423         },
 424         /* US Robotics */
 425         [USR5461] = {
 426                 .name           = "U.S. Robotics USR5461",
 427                 .buttons        = {
 428                         /* No usable buttons */
 429                 },
 430                 .leds           = {
 431                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 432                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 433                 },
 434         },
 435         /* Dell */
 436         [TM2300] = {
 437                 .name           = "Dell TrueMobile 2300",
 438                 .buttons        = {
 439                         { .name = "reset",      .gpio = 1 << 0 },
 440                 },
 441                 .leds           = {
 442                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 443                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 444                 },
 445         },
 446         /* Motorola */
 447         [WE800G] = {
 448                 .name           = "Motorola WE800G",
 449                 .buttons        = {
 450                         { .name = "reset",      .gpio = 1 << 0 },
 451                 },
 452                 .leds           = {
 453                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 454                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 455                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 456                 },
 457         },
 458         [WR850GV1] = {
 459                 .name           = "Motorola WR850G V1",
 460                 .buttons        = {
 461                         { .name = "reset",      .gpio = 1 << 0 },
 462                 },
 463                 .leds           = {
 464                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 465                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 466                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 467                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 468                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 469                 },
 470         },
 471         [WR850GV2V3] = {
 472                 .name           = "Motorola WR850G V2/V3",
 473                 .buttons        = {
 474                         { .name = "reset",      .gpio = 1 << 5 },
 475                 },
 476                 .leds           = {
 477                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 478                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 479                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 480                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 481                 },
 482         },
 483         /* Belkin */
 484         [BELKIN_UNKNOWN] = {
 485                 .name           = "Belkin (unknown)",
 486                 /* FIXME: verify & add detection */
 487                 .buttons        = {
 488                         { .name = "reset",      .gpio = 1 << 7 },
 489                 },
 490                 .leds           = {
 491                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 492                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 493                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 494                 },
 495         },
 496         /* Netgear */
 497         [WGT634U] = {
 498                 .name           = "Netgear WGT634U",
 499                 .buttons        = {
 500                         { .name = "reset",      .gpio = 1 << 2 },
 501                 },
 502                 .leds           = {
 503                         { .name = "power",      .gpio = 1 << 3, .polarity = REVERSE },
 504                 },
 505         },
 506         /* Trendware */
 507         [TEW411BRPP] = {
 508                 .name           = "Trendware TEW411BRP+",
 509                 .buttons        = {
 510                         { /* No usable buttons */ },
 511                 },
 512                 .leds           = {
 513                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 514                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 515                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 516                 },
 517         },
 518 };
 519
 520 static struct platform_t __init *platform_detect(void)
 521 {
 522         char *boardnum, *boardtype, *buf;
 523
 524         boardnum = getvar("boardnum");
 525         boardtype = getvar("boardtype");
 526
 527         if (strncmp(getvar("model_no"), "WL700",5) == 0) {
 528                 return &platforms[WL700GE]; }
 529
 530         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 531                 /* CFE based - newer hardware */
 532                 if (!strcmp(boardnum, "42")) { /* Linksys */
 533                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 534                                 return &platforms[WRT350N];
 535
 536                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 537                                 return &platforms[WRT54G3G];
 538
 539                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 540                                 return &platforms[WRTSL54GS];
 541
 542                         /* default to WRT54G */
 543                         return &platforms[WRT54G];
 544                 }
 545
 546                 if (!strcmp(boardnum, "45")) { /* ASUS */
 547                         if (!strcmp(boardtype,"0x042f"))
 548                                 return &platforms[WL500GP];
 549                         else if (!strcmp(boardtype,"0x0472"))
 550                                 return &platforms[WL500W];
 551                         else
 552                                 return &platforms[WL500GD];
 553                 }
 554
 555                 if (!strcmp(boardnum, "10496"))
 556                         return &platforms[USR5461];
 557         } else { /* PMON based - old stuff */
 558
 559                 /* Dell TrueMobile 2300 */
 560                 if (!strcmp(getvar("ModelId"),"WX-5565"))
 561                         return &platforms[TM2300];
 562
 563                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 564                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 565                         if (!strncmp(getvar("ModelId"),"WE800G", 6))
 566                                 return &platforms[WE800G];
 567                         else
 568                                 return &platforms[WR850GV1];
 569                 }
 570                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 571                         if (!strcmp(boardnum, "42"))
 572                                 return &platforms[WRT54GV1];
 573                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 574                                 return &platforms[WAP54GV1];
 575                 }
 576                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 577                         return &platforms[WL500G];
 578                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 579                         /* Either WL-300g or WL-HDD, do more extensive checks */
 580                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 581                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 582                                 return &platforms[WLHDD];
 583                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 584                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 585                                 return &platforms[WL300G];
 586                 }
 587
 588                 /* unknown asus stuff, probably bcm4702 */
 589                 if (!strncmp(boardnum, "asusX", 5))
 590                         return &platforms[ASUS_4702];
 591         }
 592
 593         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 594                 /* Buffalo hardware, check id for specific hardware matches */
 595                 if (!strcmp(buf, "29bb0332"))
 596                         return &platforms[WBR2_G54];
 597                 if (!strcmp(buf, "29129"))
 598                         return &platforms[WLA2_G54L];
 599                 if (!strcmp(buf, "30189"))
 600                         return &platforms[WHR_HP_G54];
 601                 if (!strcmp(buf, "30182"))
 602                         return &platforms[WHR_G54S];
 603                 if (!strcmp(buf, "290441dd"))
 604                         return &platforms[WHR2_A54G54];
 605                 if (!strcmp(buf, "31120"))
 606                         return &platforms[WZR_G300N];
 607                 if (!strcmp(buf, "30083"))
 608                         return &platforms[WZR_RS_G54];
 609                 if (!strcmp(buf, "30103"))
 610                         return &platforms[WZR_RS_G54HP];
 611         }
 612
 613         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 614                 if (!strncmp(boardtype, "bcm94710ap", 10))
 615                         return &platforms[BUFFALO_UNKNOWN_4710];
 616                 else
 617                         return &platforms[BUFFALO_UNKNOWN];
 618         }
 619
 620         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 621                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 622
 623                 return &platforms[WR850GV2V3];
 624         }
 625
 626         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 627                 return &platforms[TEW411BRPP];
 628         }
 629
 630         /* not found */
 631         return NULL;
 632 }
 633
 634 static void register_buttons(struct button_t *b)
 635 {
 636         for (; b->name; b++)
 637                 platform.button_mask |= b->gpio;
 638
 639         platform.button_mask &= ~gpiomask;
 640
 641         gpio_outen(platform.button_mask, 0);
 642         gpio_control(platform.button_mask, 0);
 643         platform.button_polarity = gpio_in() & platform.button_mask;
 644         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 645         gpio_intmask(platform.button_mask, platform.button_mask);
 646
 647         gpio_set_irqenable(1, button_handler);
 648 }
 649
 650 static void unregister_buttons(struct button_t *b)
 651 {
 652         gpio_intmask(platform.button_mask, 0);
 653
 654         gpio_set_irqenable(0, button_handler);
 655 }
 656
 657 static void hotplug_button(struct event_t *event)
 658 {
 659 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 660         call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
 661 #else
 662         call_usermodehelper (event->argv[0], event->argv, event->envp);
 663 #endif
 664         kfree(event);
 665 }
 666
 667 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 668 {
 669         struct button_t *b;
 670         u32 in, changed;
 671
 672         in = gpio_in() & platform.button_mask;
 673         gpio_intpolarity(platform.button_mask, in);
 674         changed = platform.button_polarity ^ in;
 675         platform.button_polarity = in;
 676
 677         changed &= ~gpio_outen(0, 0);
 678
 679         for (b = platform.buttons; b->name; b++) {
 680                 struct event_t *event;
 681
 682                 if (!(b->gpio & changed)) continue;
 683
 684                 b->pressed ^= 1;
 685
 686                 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 687                         int i;
 688                         char *scratch = event->buf;
 689
 690                         i = 0;
 691                         event->argv[i++] = hotplug_path;
 692                         event->argv[i++] = "button";
 693                         event->argv[i] = 0;
 694
 695                         i = 0;
 696                         event->envp[i++] = "HOME=/";
 697                         event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
 698                         event->envp[i++] = scratch;
 699                         scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
 700                         event->envp[i++] = scratch;
 701                         scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
 702                         event->envp[i++] = scratch;
 703                         scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
 704                         event->envp[i] = 0;
 705
 706                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 707                         schedule_work(&event->wq);
 708                 }
 709
 710                 b->seen = jiffies;
 711         }
 712         return IRQ_HANDLED;
 713 }
 714
 715 static void register_leds(struct led_t *l)
 716 {
 717         struct proc_dir_entry *p;
 718         u32 mask = 0;
 719         u32 val = 0;
 720
 721         leds = proc_mkdir("led", diag);
 722         if (!leds)
 723                 return;
 724
 725         for(; l->name; l++) {
 726                 if (l->gpio & gpiomask)
 727                         continue;
 728
 729                 if (l->gpio & GPIO_TYPE_EXTIF) {
 730                         l->state = 0;
 731                         set_led_extif(l);
 732                 } else {
 733                         mask |= l->gpio;
 734                         val |= (l->polarity == NORMAL)?0:l->gpio;
 735                 }
 736
 737                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 738                         l->proc.type = PROC_LED;
 739                         l->proc.ptr = l;
 740                         p->data = (void *) &l->proc;
 741                         p->proc_fops = &diag_proc_fops;
 742                 }
 743         }
 744
 745         gpio_outen(mask, mask);
 746         gpio_control(mask, 0);
 747         gpio_out(mask, val);
 748 }
 749
 750 static void unregister_leds(struct led_t *l)
 751 {
 752         for(; l->name; l++)
 753                 remove_proc_entry(l->name, leds);
 754
 755         remove_proc_entry("led", diag);
 756 }
 757
 758 static void set_led_extif(struct led_t *led)
 759 {
 760         gpio_set_extif(led->gpio, led->state);
 761 }
 762
 763 static void led_flash(unsigned long dummy) {
 764         struct led_t *l;
 765         u32 mask = 0;
 766         u8 extif_blink = 0;
 767
 768         for (l = platform.leds; l->name; l++) {
 769                 if (l->flash) {
 770                         if (l->gpio & GPIO_TYPE_EXTIF) {
 771                                 extif_blink = 1;
 772                                 l->state = !l->state;
 773                                 set_led_extif(l);
 774                         } else {
 775                                 mask |= l->gpio;
 776                         }
 777                 }
 778         }
 779
 780         mask &= ~gpiomask;
 781         if (mask) {
 782                 u32 val = ~gpio_in();
 783
 784                 gpio_outen(mask, mask);
 785                 gpio_control(mask, 0);
 786                 gpio_out(mask, val);
 787         }
 788         if (mask || extif_blink) {
 789                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 790         }
 791 }
 792
 793 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 794 {
 795 #ifdef LINUX_2_4
 796         struct inode *inode = file->f_dentry->d_inode;
 797         struct proc_dir_entry *dent = inode->u.generic_ip;
 798 #else
 799         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 800 #endif
 801         char *page;
 802         int len = 0;
 803
 804         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 805                 return -ENOBUFS;
 806
 807         if (dent->data != NULL) {
 808                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 809                 switch (handler->type) {
 810                         case PROC_LED: {
 811                                 struct led_t * led = (struct led_t *) handler->ptr;
 812                                 if (led->flash) {
 813                                         len = sprintf(page, "f\n");
 814                                 } else {
 815                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 816                                                 len = sprintf(page, "%d\n", led->state);
 817                                         } else {
 818                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 819                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 820                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 821                                         }
 822                                 }
 823                                 break;
 824                         }
 825                         case PROC_MODEL:
 826                                 len = sprintf(page, "%s\n", platform.name);
 827                                 break;
 828                         case PROC_GPIOMASK:
 829                                 len = sprintf(page, "0x%04x\n", gpiomask);
 830                                 break;
 831                 }
 832         }
 833         len += 1;
 834
 835         if (*ppos < len) {
 836                 len = min_t(int, len - *ppos, count);
 837                 if (copy_to_user(buf, (page + *ppos), len)) {
 838                         kfree(page);
 839                         return -EFAULT;
 840                 }
 841                 *ppos += len;
 842         } else {
 843                 len = 0;
 844         }
 845
 846         return len;
 847 }
 848
 849
 850 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 851 {
 852 #ifdef LINUX_2_4
 853         struct inode *inode = file->f_dentry->d_inode;
 854         struct proc_dir_entry *dent = inode->u.generic_ip;
 855 #else
 856         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 857 #endif
 858         char *page;
 859         int ret = -EINVAL;
 860
 861         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
 862                 return -ENOBUFS;
 863
 864         if (copy_from_user(page, buf, count)) {
 865                 kfree(page);
 866                 return -EINVAL;
 867         }
 868         page[count] = 0;
 869
 870         if (dent->data != NULL) {
 871                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 872                 switch (handler->type) {
 873                         case PROC_LED: {
 874                                 struct led_t *led = (struct led_t *) handler->ptr;
 875                                 int p = (led->polarity == NORMAL ? 0 : 1);
 876
 877                                 if (page[0] == 'f') {
 878                                         led->flash = 1;
 879                                         led_flash(0);
 880                                 } else {
 881                                         led->flash = 0;
 882                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 883                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
 884                                                 set_led_extif(led);
 885                                         } else {
 886                                                 gpio_outen(led->gpio, led->gpio);
 887                                                 gpio_control(led->gpio, 0);
 888                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 889                                         }
 890                                 }
 891                                 break;
 892                         }
 893                         case PROC_GPIOMASK:
 894                                 gpiomask = simple_strtoul(page, NULL, 0);
 895
 896                                 if (platform.buttons) {
 897                                         unregister_buttons(platform.buttons);
 898                                         register_buttons(platform.buttons);
 899                                 }
 900
 901                                 if (platform.leds) {
 902                                         unregister_leds(platform.leds);
 903                                         register_leds(platform.leds);
 904                                 }
 905                                 break;
 906                 }
 907                 ret = count;
 908         }
 909
 910         kfree(page);
 911         return ret;
 912 }
 913
 914 static int __init diag_init(void)
 915 {
 916         static struct proc_dir_entry *p;
 917         static struct platform_t *detected;
 918
 919         detected = platform_detect();
 920         if (!detected) {
 921                 printk(MODULE_NAME ": Router model not detected.\n");
 922                 return -ENODEV;
 923         }
 924         memcpy(&platform, detected, sizeof(struct platform_t));
 925
 926         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
 927         if (platform.platform_init != NULL) {
 928                 platform.platform_init();
 929         }
 930
 931         if (!(diag = proc_mkdir("diag", NULL))) {
 932                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
 933                 return -EINVAL;
 934         }
 935
 936         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
 937                 p->data = (void *) &proc_model;
 938                 p->proc_fops = &diag_proc_fops;
 939         }
 940
 941         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
 942                 p->data = (void *) &proc_gpiomask;
 943                 p->proc_fops = &diag_proc_fops;
 944         }
 945
 946         if (platform.buttons)
 947                 register_buttons(platform.buttons);
 948
 949         if (platform.leds)
 950                 register_leds(platform.leds);
 951
 952         return 0;
 953 }
 954
 955 static void __exit diag_exit(void)
 956 {
 957
 958         del_timer(&led_timer);
 959
 960         if (platform.buttons)
 961                 unregister_buttons(platform.buttons);
 962
 963         if (platform.leds)
 964                 unregister_leds(platform.leds);
 965
 966         remove_proc_entry("model", diag);
 967         remove_proc_entry("gpiomask", diag);
 968         remove_proc_entry("diag", NULL);
 969 }
 970
 971 module_init(diag_init);
 972 module_exit(diag_exit);
 973
 974 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
 975 MODULE_LICENSE("GPL");