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