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  *
   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 #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 int fill_event(struct event_t *);
  50 static unsigned int gpiomask = 0;
  51 module_param(gpiomask, int, 0644);
  52
  53 enum {
  54         /* Linksys */
  55         WAP54GV1,
  56         WAP54GV3,
  57         WRT54GV1,
  58         WRT54G,
  59         WRTSL54GS,
  60         WRT54G3G,
  61         WRT350N,
  62
  63         /* ASUS */
  64         WLHDD,
  65         WL300G,
  66         WL500G,
  67         WL500GD,
  68         WL500GP,
  69         WL500W,
  70         ASUS_4702,
  71         WL700GE,
  72
  73         /* Buffalo */
  74         WBR2_G54,
  75         WHR_G54S,
  76         WHR_HP_G54,
  77         WHR2_A54G54,
  78         WLA2_G54L,
  79         WZR_G300N,
  80         WZR_RS_G54,
  81         WZR_RS_G54HP,
  82         BUFFALO_UNKNOWN,
  83         BUFFALO_UNKNOWN_4710,
  84
  85         /* Siemens */
  86         SE505V1,
  87         SE505V2,
  88
  89         /* US Robotics */
  90         USR5461,
  91
  92         /* Dell */
  93         TM2300,
  94
  95         /* Motorola */
  96         WE800G,
  97         WR850GV1,
  98         WR850GV2V3,
  99
 100         /* Belkin */
 101         BELKIN_UNKNOWN,
 102
 103         /* Netgear */
 104         WGT634U,
 105
 106         /* Trendware */
 107         TEW411BRPP,
 108
 109         /* SimpleTech */
 110         STI_NAS,
 111
 112         /* D-Link */
 113         DIR130,
 114         DIR330,
 115 };
 116
 117 static void __init bcm4780_init(void) {
 118                 int pin = 1 << 3;
 119
 120                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 121                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 122                 gpio_outen(pin, pin);
 123                 gpio_control(pin, 0);
 124                 gpio_out(pin, pin);
 125
 126                 /* Wait 5s, so the HDD can spin up */
 127                 set_current_state(TASK_INTERRUPTIBLE);
 128                 schedule_timeout(HZ * 5);
 129 }
 130
 131 static struct platform_t __initdata platforms[] = {
 132         /* Linksys */
 133         [WAP54GV1] = {
 134                 .name           = "Linksys WAP54G V1",
 135                 .buttons        = {
 136                         { .name = "reset",      .gpio = 1 << 0 },
 137                 },
 138                 .leds           = {
 139                         { .name = "diag",       .gpio = 1 << 3 },
 140                         { .name = "wlan",       .gpio = 1 << 4 },
 141                 },
 142         },
 143         [WAP54GV3] = {
 144                 .name           = "Linksys WAP54G V3",
 145                 .buttons        = {
 146                         /* FIXME: verify this */
 147                         { .name = "reset",      .gpio = 1 << 7 },
 148                         { .name = "ses",        .gpio = 1 << 0 },
 149                 },
 150                 .leds           = {
 151                         /* FIXME: diag? */
 152                         { .name = "ses",        .gpio = 1 << 1 },
 153                 },
 154         },
 155         [WRT54GV1] = {
 156                 .name           = "Linksys WRT54G V1.x",
 157                 .buttons        = {
 158                         { .name = "reset",      .gpio = 1 << 6 },
 159                 },
 160                 .leds           = {
 161                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 162                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 163                 },
 164         },
 165         [WRT54G] = {
 166                 .name           = "Linksys WRT54G/GS/GL",
 167                 .buttons        = {
 168                         { .name = "reset",      .gpio = 1 << 6 },
 169                         { .name = "ses",        .gpio = 1 << 4 },
 170                 },
 171                 .leds           = {
 172                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 173                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 174                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 175                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 176                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 177                 },
 178         },
 179         [WRTSL54GS] = {
 180                 .name           = "Linksys WRTSL54GS",
 181                 .buttons        = {
 182                         { .name = "reset",      .gpio = 1 << 6 },
 183                         { .name = "ses",        .gpio = 1 << 4 },
 184                 },
 185                 .leds           = {
 186                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 187                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 188                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 189                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 190                 },
 191         },
 192         [WRT54G3G] = {
 193                 .name           = "Linksys WRT54G3G",
 194                 .buttons        = {
 195                         { .name = "reset",      .gpio = 1 << 6 },
 196                         { .name = "3g",         .gpio = 1 << 4 },
 197                 },
 198                 .leds           = {
 199                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 200                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 201                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 202                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 203                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 204                 },
 205         },
 206         [WRT350N] = {
 207                 .name           = "Linksys WRT350N",
 208                 .buttons        = {
 209                         { .name = "reset",      .gpio = 1 << 6 },
 210                         { .name = "ses",        .gpio = 1 << 8 },
 211                 },
 212                 .leds           = {
 213                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 214                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 215                 },
 216         },
 217         /* Asus */
 218         [WLHDD] = {
 219                 .name           = "ASUS WL-HDD",
 220                 .buttons        = {
 221                         { .name = "reset",      .gpio = 1 << 6 },
 222                 },
 223                 .leds           = {
 224                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 225                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 226                 },
 227         },
 228         [WL300G] = {
 229                 .name           = "ASUS WL-300g",
 230                 .buttons        = {
 231                         { .name = "reset",      .gpio = 1 << 6 },
 232                 },
 233                 .leds           = {
 234                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 235                 },
 236         },
 237         [WL500G] = {
 238                 .name           = "ASUS WL-500g",
 239                 .buttons        = {
 240                         { .name = "reset",      .gpio = 1 << 6 },
 241                 },
 242                 .leds           = {
 243                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 244                 },
 245         },
 246         [WL500GD] = {
 247                 .name           = "ASUS WL-500g Deluxe",
 248                 .buttons        = {
 249                         { .name = "reset",      .gpio = 1 << 6 },
 250                 },
 251                 .leds           = {
 252                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 253                 },
 254         },
 255         [WL500GP] = {
 256                 .name           = "ASUS WL-500g Premium",
 257                 .buttons        = {
 258                         { .name = "reset",      .gpio = 1 << 0 },
 259                         { .name = "ses",        .gpio = 1 << 4 },
 260                 },
 261                 .leds           = {
 262                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 263                 },
 264         },
 265         [WL500W] = {
 266                 .name           = "ASUS WL-500W",
 267                 .buttons        = {
 268                         { .name = "reset",      .gpio = 1 << 6 },
 269                         { .name = "ses",        .gpio = 1 << 7 },
 270                 },
 271                 .leds           = {
 272                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 273                 },
 274         },
 275         [ASUS_4702] = {
 276                 .name           = "ASUS (unknown, BCM4702)",
 277                 .buttons        = {
 278                         { .name = "reset",      .gpio = 1 << 6 },
 279                 },
 280                 .leds           = {
 281                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 282                 },
 283         },
 284         [WL700GE] = {
 285                 .name           = "ASUS WL-700gE",
 286                 .buttons        = {
 287                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 288                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 289                         { .name = "power",      .gpio = 1 << 0 }, // on front
 290                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 291                 },
 292                 .leds           = {
 293 #if 0
 294                         // GPIO that controls power led also enables/disables some essential functions
 295                         // - power to HDD
 296                         // - switch leds
 297                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 298 #endif
 299                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 300                 },
 301                 .platform_init = bcm4780_init,
 302         },
 303         /* Buffalo */
 304         [WHR_G54S] = {
 305                 .name           = "Buffalo WHR-G54S",
 306                 .buttons        = {
 307                         { .name = "reset",      .gpio = 1 << 4 },
 308                         { .name = "bridge",     .gpio = 1 << 5 },
 309                         { .name = "ses",        .gpio = 1 << 0 },
 310                 },
 311                 .leds           = {
 312                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 313                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 314                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 315                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 316                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 317                 },
 318         },
 319         [WBR2_G54] = {
 320                 .name           = "Buffalo WBR2-G54",
 321                 /* FIXME: verify */
 322                 .buttons        = {
 323                         { .name = "reset",      .gpio = 1 << 7 },
 324                 },
 325                 .leds           = {
 326                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 327                 },
 328         },
 329         [WHR_HP_G54] = {
 330                 .name           = "Buffalo WHR-HP-G54",
 331                 .buttons        = {
 332                         { .name = "reset",      .gpio = 1 << 4 },
 333                         { .name = "bridge",     .gpio = 1 << 5 },
 334                         { .name = "ses",        .gpio = 1 << 0 },
 335                 },
 336                 .leds           = {
 337                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 338                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 339                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 340                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 341                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 342                 },
 343         },
 344         [WHR2_A54G54] = {
 345                 .name           = "Buffalo WHR2-A54G54",
 346                 .buttons        = {
 347                         { .name = "reset",      .gpio = 1 << 4 },
 348                 },
 349                 .leds           = {
 350                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 351                 },
 352         },
 353         [WLA2_G54L] = {
 354                 .name           = "Buffalo WLA2-G54L",
 355                 /* FIXME: verify */
 356                 .buttons        = {
 357                         { .name = "reset",      .gpio = 1 << 7 },
 358                 },
 359                 .leds           = {
 360                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 361                 },
 362         },
 363         [WZR_G300N] = {
 364                 .name           = "Buffalo WZR-G300N",
 365                 .buttons        = {
 366                         { .name = "reset",      .gpio = 1 << 4 },
 367                 },
 368                 .leds           = {
 369                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 370                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 371                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 372                 },
 373         },
 374         [WZR_RS_G54] = {
 375                 .name           = "Buffalo WZR-RS-G54",
 376                 .buttons        = {
 377                         { .name = "ses",        .gpio = 1 << 0 },
 378                         { .name = "reset",      .gpio = 1 << 4 },
 379                 },
 380                 .leds           = {
 381                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 382                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 383                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 384                 },
 385         },
 386         [WZR_RS_G54HP] = {
 387                 .name           = "Buffalo WZR-RS-G54HP",
 388                 .buttons        = {
 389                         { .name = "ses",        .gpio = 1 << 0 },
 390                         { .name = "reset",      .gpio = 1 << 4 },
 391                 },
 392                 .leds           = {
 393                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 394                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 395                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 396                 },
 397         },
 398         [BUFFALO_UNKNOWN] = {
 399                 .name           = "Buffalo (unknown)",
 400                 .buttons        = {
 401                         { .name = "reset",      .gpio = 1 << 7 },
 402                 },
 403                 .leds           = {
 404                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 405                 },
 406         },
 407         [BUFFALO_UNKNOWN_4710] = {
 408                 .name           = "Buffalo (unknown, BCM4710)",
 409                 .buttons        = {
 410                         { .name = "reset",      .gpio = 1 << 4 },
 411                 },
 412                 .leds           = {
 413                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 414                 },
 415         },
 416         /* Siemens */
 417         [SE505V1] = {
 418                 .name           = "Siemens SE505 V1",
 419                 .buttons        = {
 420                         /* No usable buttons */
 421                 },
 422                 .leds           = {
 423                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 424                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 425                 },
 426         },
 427         [SE505V2] = {
 428                 .name           = "Siemens SE505 V2",
 429                 .buttons        = {
 430                         /* No usable buttons */
 431                 },
 432                 .leds           = {
 433                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 434                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 435                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 436                 },
 437         },
 438         /* US Robotics */
 439         [USR5461] = {
 440                 .name           = "U.S. Robotics USR5461",
 441                 .buttons        = {
 442                         /* No usable buttons */
 443                 },
 444                 .leds           = {
 445                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 446                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 447                 },
 448         },
 449         /* Dell */
 450         [TM2300] = {
 451                 .name           = "Dell TrueMobile 2300",
 452                 .buttons        = {
 453                         { .name = "reset",      .gpio = 1 << 0 },
 454                 },
 455                 .leds           = {
 456                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 457                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 458                 },
 459         },
 460         /* Motorola */
 461         [WE800G] = {
 462                 .name           = "Motorola WE800G",
 463                 .buttons        = {
 464                         { .name = "reset",      .gpio = 1 << 0 },
 465                 },
 466                 .leds           = {
 467                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 468                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 469                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 470                 },
 471         },
 472         [WR850GV1] = {
 473                 .name           = "Motorola WR850G V1",
 474                 .buttons        = {
 475                         { .name = "reset",      .gpio = 1 << 0 },
 476                 },
 477                 .leds           = {
 478                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 479                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 480                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 481                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 482                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 483                 },
 484         },
 485         [WR850GV2V3] = {
 486                 .name           = "Motorola WR850G V2/V3",
 487                 .buttons        = {
 488                         { .name = "reset",      .gpio = 1 << 5 },
 489                 },
 490                 .leds           = {
 491                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 492                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 493                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 494                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 495                 },
 496         },
 497         /* Belkin */
 498         [BELKIN_UNKNOWN] = {
 499                 .name           = "Belkin (unknown)",
 500                 /* FIXME: verify & add detection */
 501                 .buttons        = {
 502                         { .name = "reset",      .gpio = 1 << 7 },
 503                 },
 504                 .leds           = {
 505                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 506                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 507                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 508                 },
 509         },
 510         /* Netgear */
 511         [WGT634U] = {
 512                 .name           = "Netgear WGT634U",
 513                 .buttons        = {
 514                         { .name = "reset",      .gpio = 1 << 2 },
 515                 },
 516                 .leds           = {
 517                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 518                 },
 519         },
 520         /* Trendware */
 521         [TEW411BRPP] = {
 522                 .name           = "Trendware TEW411BRP+",
 523                 .buttons        = {
 524                         { /* No usable buttons */ },
 525                 },
 526                 .leds           = {
 527                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 528                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 529                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 530                 },
 531         },
 532         /* SimpleTech */
 533         [STI_NAS] = {
 534                 .name      = "SimpleTech SimpleShare NAS",
 535                 .buttons        = {
 536                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 537                         { .name = "power",      .gpio = 1 << 0 }, // on back
 538                 },
 539                 .leds      = {
 540                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 541                 },
 542                 .platform_init = bcm4780_init,
 543         },
 544         /* D-Link */
 545         [DIR130] = {
 546                 .name     = "D-Link DIR-130",
 547                 .buttons        = {
 548                         { .name = "reset",      .gpio = 1 << 3},
 549                         { .name = "reserved",   .gpio = 1 << 7},
 550                 },
 551                 .leds      = {
 552                         { .name = "diag",       .gpio = 1 << 0},
 553                         { .name = "blue",       .gpio = 1 << 6},
 554                 },
 555         },
 556         [DIR330] = {
 557                 .name     = "D-Link DIR-330",
 558                 .buttons        = {
 559                         { .name = "reset",      .gpio = 1 << 3},
 560                         { .name = "reserved",   .gpio = 1 << 7},
 561                 },
 562                 .leds      = {
 563                         { .name = "diag",       .gpio = 1 << 0},
 564                         { .name = "usb",        .gpio = 1 << 4},
 565                         { .name = "blue",       .gpio = 1 << 6},
 566                 },
 567         },
 568 };
 569
 570 static struct platform_t __init *platform_detect(void)
 571 {
 572         char *boardnum, *boardtype, *buf;
 573
 574         boardnum = getvar("boardnum");
 575         boardtype = getvar("boardtype");
 576
 577         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 578                 return &platforms[WGT634U];
 579
 580         if (strncmp(getvar("model_no"), "WL700",5) == 0)
 581                 return &platforms[WL700GE];
 582
 583         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 584                 /* CFE based - newer hardware */
 585                 if (!strcmp(boardnum, "42")) { /* Linksys */
 586                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 587                                 return &platforms[WRT350N];
 588
 589                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 590                                 return &platforms[WRT54G3G];
 591
 592                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 593                                 return &platforms[WRTSL54GS];
 594
 595                         /* default to WRT54G */
 596                         return &platforms[WRT54G];
 597                 }
 598
 599                 if (!strcmp(boardnum, "45")) { /* ASUS */
 600                         if (!strcmp(boardtype,"0x042f"))
 601                                 return &platforms[WL500GP];
 602                         else if (!strcmp(boardtype,"0x0472"))
 603                                 return &platforms[WL500W];
 604                         else
 605                                 return &platforms[WL500GD];
 606                 }
 607
 608                 if (!strcmp(boardnum, "10496"))
 609                         return &platforms[USR5461];
 610
 611                 /* D-Link */
 612                 if (!strcmp(getvar("model_name"), "DIR-130"))
 613                         return &platforms[DIR130];
 614                 if (!strcmp(getvar("model_name"), "DIR-330"))
 615                         return &platforms[DIR330];
 616
 617         } else { /* PMON based - old stuff */
 618
 619                 /* Dell TrueMobile 2300 */
 620                 if (!strcmp(getvar("ModelId"),"WX-5565"))
 621                         return &platforms[TM2300];
 622
 623                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 624                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 625                         if (!strncmp(getvar("ModelId"),"WE800G", 6))
 626                                 return &platforms[WE800G];
 627                         else
 628                                 return &platforms[WR850GV1];
 629                 }
 630                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 631                         if (!strcmp(boardnum, "42"))
 632                                 return &platforms[WRT54GV1];
 633                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 634                                 return &platforms[WAP54GV1];
 635                 }
 636                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 637                         return &platforms[WL500G];
 638                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 639                         /* Either WL-300g or WL-HDD, do more extensive checks */
 640                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 641                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 642                                 return &platforms[WLHDD];
 643                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 644                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 645                                 return &platforms[WL300G];
 646                 }
 647
 648                 /* unknown asus stuff, probably bcm4702 */
 649                 if (!strncmp(boardnum, "asusX", 5))
 650                         return &platforms[ASUS_4702];
 651         }
 652
 653         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 654                 /* Buffalo hardware, check id for specific hardware matches */
 655                 if (!strcmp(buf, "29bb0332"))
 656                         return &platforms[WBR2_G54];
 657                 if (!strcmp(buf, "29129"))
 658                         return &platforms[WLA2_G54L];
 659                 if (!strcmp(buf, "30189"))
 660                         return &platforms[WHR_HP_G54];
 661                 if (!strcmp(buf, "30182"))
 662                         return &platforms[WHR_G54S];
 663                 if (!strcmp(buf, "290441dd"))
 664                         return &platforms[WHR2_A54G54];
 665                 if (!strcmp(buf, "31120"))
 666                         return &platforms[WZR_G300N];
 667                 if (!strcmp(buf, "30083"))
 668                         return &platforms[WZR_RS_G54];
 669                 if (!strcmp(buf, "30103"))
 670                         return &platforms[WZR_RS_G54HP];
 671         }
 672
 673         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 674                 if (!strncmp(boardtype, "bcm94710ap", 10))
 675                         return &platforms[BUFFALO_UNKNOWN_4710];
 676                 else
 677                         return &platforms[BUFFALO_UNKNOWN];
 678         }
 679
 680         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 681                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 682
 683                 return &platforms[WR850GV2V3];
 684         }
 685
 686         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 687                 return &platforms[TEW411BRPP];
 688         }
 689
 690         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 691                 return &platforms[STI_NAS];
 692
 693         /* not found */
 694         return NULL;
 695 }
 696
 697 static void register_buttons(struct button_t *b)
 698 {
 699         for (; b->name; b++)
 700                 platform.button_mask |= b->gpio;
 701
 702         platform.button_mask &= ~gpiomask;
 703
 704         gpio_outen(platform.button_mask, 0);
 705         gpio_control(platform.button_mask, 0);
 706         platform.button_polarity = gpio_in() & platform.button_mask;
 707         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 708         gpio_intmask(platform.button_mask, platform.button_mask);
 709
 710         gpio_set_irqenable(1, button_handler);
 711 }
 712
 713 static void unregister_buttons(struct button_t *b)
 714 {
 715         gpio_intmask(platform.button_mask, 0);
 716
 717         gpio_set_irqenable(0, button_handler);
 718 }
 719
 720
 721 #ifndef LINUX_2_4
 722 static void add_msg(struct event_t *event, char *msg, int argv)
 723 {
 724         char *s;
 725
 726         if (argv)
 727                 return;
 728
 729         s = skb_put(event->skb, strlen(msg) + 1);
 730         strcpy(s, msg);
 731 }
 732
 733 static void hotplug_button(struct work_struct *work)
 734 {
 735         struct event_t *event = container_of(work, struct event_t, wq);
 736         char *s;
 737
 738         if (!uevent_sock)
 739                 return;
 740
 741         event->skb = alloc_skb(2048, GFP_KERNEL);
 742
 743         s = skb_put(event->skb, strlen(event->action) + 2);
 744         sprintf(s, "%s@", event->action);
 745         fill_event(event);
 746
 747         NETLINK_CB(event->skb).dst_group = 1;
 748         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 749
 750         kfree(event);
 751 }
 752
 753 #else /* !LINUX_2_4 */
 754 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 755 {
 756         char *p;
 757
 758         p = kmalloc(size, gfp);
 759         if (p == NULL)
 760                 return NULL;
 761
 762         memset(p, 0, size);
 763
 764         return p;
 765 }
 766
 767 static void add_msg(struct event_t *event, char *msg, int argv)
 768 {
 769         if (argv)
 770                 event->argv[event->anr++] = event->scratch;
 771         else
 772                 event->envp[event->enr++] = event->scratch;
 773
 774         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 775 }
 776
 777 static void hotplug_button(struct event_t *event)
 778 {
 779         char *scratch = kzalloc(256, GFP_KERNEL);
 780         event->scratch = scratch;
 781
 782         add_msg(event, hotplug_path, 1);
 783         add_msg(event, "button", 1);
 784         fill_event(event);
 785         call_usermodehelper (event->argv[0], event->argv, event->envp);
 786         kfree(scratch);
 787         kfree(event);
 788 }
 789 #endif /* !LINUX_2_4 */
 790
 791 static int fill_event (struct event_t *event)
 792 {
 793         static char buf[128];
 794
 795         add_msg(event, "HOME=/", 0);
 796         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 797         add_msg(event, "SUBSYSTEM=button", 0);
 798         snprintf(buf, 128, "ACTION=%s", event->action);
 799         add_msg(event, buf, 0);
 800         snprintf(buf, 128, "BUTTON=%s", event->name);
 801         add_msg(event, buf, 0);
 802         snprintf(buf, 128, "SEEN=%ld", event->seen);
 803         add_msg(event, buf, 0);
 804 #ifndef LINUX_2_4
 805         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 806         add_msg(event, buf, 0);
 807 #endif
 808
 809         return 0;
 810 }
 811
 812
 813 #ifndef LINUX_2_4
 814 static irqreturn_t button_handler(int irq, void *dev_id)
 815 #else
 816 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 817 #endif
 818 {
 819         struct button_t *b;
 820         u32 in, changed;
 821
 822         in = gpio_in() & platform.button_mask;
 823         gpio_intpolarity(platform.button_mask, in);
 824         changed = platform.button_polarity ^ in;
 825         platform.button_polarity = in;
 826
 827         changed &= ~gpio_outen(0, 0);
 828
 829         for (b = platform.buttons; b->name; b++) {
 830                 struct event_t *event;
 831
 832                 if (!(b->gpio & changed)) continue;
 833
 834                 b->pressed ^= 1;
 835
 836                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 837                         event->seen = (jiffies - b->seen)/HZ;
 838                         event->name = b->name;
 839                         event->action = b->pressed ? "pressed" : "released";
 840 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 841                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 842 #else
 843                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 844 #endif
 845                         schedule_work(&event->wq);
 846                 }
 847
 848                 b->seen = jiffies;
 849         }
 850         return IRQ_HANDLED;
 851 }
 852
 853 static void register_leds(struct led_t *l)
 854 {
 855         struct proc_dir_entry *p;
 856         u32 mask = 0;
 857         u32 val = 0;
 858
 859         leds = proc_mkdir("led", diag);
 860         if (!leds)
 861                 return;
 862
 863         for(; l->name; l++) {
 864                 if (l->gpio & gpiomask)
 865                         continue;
 866
 867                 if (l->gpio & GPIO_TYPE_EXTIF) {
 868                         l->state = 0;
 869                         set_led_extif(l);
 870                 } else {
 871                         mask |= l->gpio;
 872                         val |= (l->polarity == NORMAL)?0:l->gpio;
 873                 }
 874
 875                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 876                         l->proc.type = PROC_LED;
 877                         l->proc.ptr = l;
 878                         p->data = (void *) &l->proc;
 879                         p->proc_fops = &diag_proc_fops;
 880                 }
 881         }
 882
 883         gpio_outen(mask, mask);
 884         gpio_control(mask, 0);
 885         gpio_out(mask, val);
 886 }
 887
 888 static void unregister_leds(struct led_t *l)
 889 {
 890         for(; l->name; l++)
 891                 remove_proc_entry(l->name, leds);
 892
 893         remove_proc_entry("led", diag);
 894 }
 895
 896 static void set_led_extif(struct led_t *led)
 897 {
 898         gpio_set_extif(led->gpio, led->state);
 899 }
 900
 901 static void led_flash(unsigned long dummy) {
 902         struct led_t *l;
 903         u32 mask = 0;
 904         u8 extif_blink = 0;
 905
 906         for (l = platform.leds; l->name; l++) {
 907                 if (l->flash) {
 908                         if (l->gpio & GPIO_TYPE_EXTIF) {
 909                                 extif_blink = 1;
 910                                 l->state = !l->state;
 911                                 set_led_extif(l);
 912                         } else {
 913                                 mask |= l->gpio;
 914                         }
 915                 }
 916         }
 917
 918         mask &= ~gpiomask;
 919         if (mask) {
 920                 u32 val = ~gpio_in();
 921
 922                 gpio_outen(mask, mask);
 923                 gpio_control(mask, 0);
 924                 gpio_out(mask, val);
 925         }
 926         if (mask || extif_blink) {
 927                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 928         }
 929 }
 930
 931 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 932 {
 933 #ifdef LINUX_2_4
 934         struct inode *inode = file->f_dentry->d_inode;
 935         struct proc_dir_entry *dent = inode->u.generic_ip;
 936 #else
 937         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 938 #endif
 939         char *page;
 940         int len = 0;
 941
 942         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 943                 return -ENOBUFS;
 944
 945         if (dent->data != NULL) {
 946                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 947                 switch (handler->type) {
 948                         case PROC_LED: {
 949                                 struct led_t * led = (struct led_t *) handler->ptr;
 950                                 if (led->flash) {
 951                                         len = sprintf(page, "f\n");
 952                                 } else {
 953                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 954                                                 len = sprintf(page, "%d\n", led->state);
 955                                         } else {
 956                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 957                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 958                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 959                                         }
 960                                 }
 961                                 break;
 962                         }
 963                         case PROC_MODEL:
 964                                 len = sprintf(page, "%s\n", platform.name);
 965                                 break;
 966                         case PROC_GPIOMASK:
 967                                 len = sprintf(page, "0x%04x\n", gpiomask);
 968                                 break;
 969                 }
 970         }
 971         len += 1;
 972
 973         if (*ppos < len) {
 974                 len = min_t(int, len - *ppos, count);
 975                 if (copy_to_user(buf, (page + *ppos), len)) {
 976                         kfree(page);
 977                         return -EFAULT;
 978                 }
 979                 *ppos += len;
 980         } else {
 981                 len = 0;
 982         }
 983
 984         kfree(page);
 985         return len;
 986 }
 987
 988
 989 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 990 {
 991 #ifdef LINUX_2_4
 992         struct inode *inode = file->f_dentry->d_inode;
 993         struct proc_dir_entry *dent = inode->u.generic_ip;
 994 #else
 995         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 996 #endif
 997         char *page;
 998         int ret = -EINVAL;
 999
1000         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1001                 return -ENOBUFS;
1002
1003         if (copy_from_user(page, buf, count)) {
1004                 kfree(page);
1005                 return -EINVAL;
1006         }
1007         page[count] = 0;
1008
1009         if (dent->data != NULL) {
1010                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1011                 switch (handler->type) {
1012                         case PROC_LED: {
1013                                 struct led_t *led = (struct led_t *) handler->ptr;
1014                                 int p = (led->polarity == NORMAL ? 0 : 1);
1015
1016                                 if (page[0] == 'f') {
1017                                         led->flash = 1;
1018                                         led_flash(0);
1019                                 } else {
1020                                         led->flash = 0;
1021                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1022                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1023                                                 set_led_extif(led);
1024                                         } else {
1025                                                 gpio_outen(led->gpio, led->gpio);
1026                                                 gpio_control(led->gpio, 0);
1027                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1028                                         }
1029                                 }
1030                                 break;
1031                         }
1032                         case PROC_GPIOMASK:
1033                                 gpiomask = simple_strtoul(page, NULL, 0);
1034
1035                                 if (platform.buttons) {
1036                                         unregister_buttons(platform.buttons);
1037                                         register_buttons(platform.buttons);
1038                                 }
1039
1040                                 if (platform.leds) {
1041                                         unregister_leds(platform.leds);
1042                                         register_leds(platform.leds);
1043                                 }
1044                                 break;
1045                 }
1046                 ret = count;
1047         }
1048
1049         kfree(page);
1050         return ret;
1051 }
1052
1053 static int __init diag_init(void)
1054 {
1055         static struct proc_dir_entry *p;
1056         static struct platform_t *detected;
1057
1058         detected = platform_detect();
1059         if (!detected) {
1060                 printk(MODULE_NAME ": Router model not detected.\n");
1061                 return -ENODEV;
1062         }
1063         memcpy(&platform, detected, sizeof(struct platform_t));
1064
1065         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1066         if (platform.platform_init != NULL) {
1067                 platform.platform_init();
1068         }
1069
1070         if (!(diag = proc_mkdir("diag", NULL))) {
1071                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1072                 return -EINVAL;
1073         }
1074
1075         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1076                 p->data = (void *) &proc_model;
1077                 p->proc_fops = &diag_proc_fops;
1078         }
1079
1080         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1081                 p->data = (void *) &proc_gpiomask;
1082                 p->proc_fops = &diag_proc_fops;
1083         }
1084
1085         if (platform.buttons)
1086                 register_buttons(platform.buttons);
1087
1088         if (platform.leds)
1089                 register_leds(platform.leds);
1090
1091         return 0;
1092 }
1093
1094 static void __exit diag_exit(void)
1095 {
1096         del_timer(&led_timer);
1097
1098         if (platform.buttons)
1099                 unregister_buttons(platform.buttons);
1100
1101         if (platform.leds)
1102                 unregister_leds(platform.leds);
1103
1104         remove_proc_entry("model", diag);
1105         remove_proc_entry("gpiomask", diag);
1106         remove_proc_entry("diag", NULL);
1107 }
1108
1109 module_init(diag_init);
1110 module_exit(diag_exit);
1111
1112 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1113 MODULE_LICENSE("GPL");