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         WR850GP,
 100
 101         /* Belkin */
 102         BELKIN_UNKNOWN,
 103
 104         /* Netgear */
 105         WGT634U,
 106
 107         /* Trendware */
 108         TEW411BRPP,
 109
 110         /* SimpleTech */
 111         STI_NAS,
 112
 113         /* D-Link */
 114         DIR130,
 115         DIR330,
 116 };
 117
 118 static void __init bcm4780_init(void) {
 119                 int pin = 1 << 3;
 120
 121                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 122                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 123                 gpio_outen(pin, pin);
 124                 gpio_control(pin, 0);
 125                 gpio_out(pin, pin);
 126
 127                 /* Wait 5s, so the HDD can spin up */
 128                 set_current_state(TASK_INTERRUPTIBLE);
 129                 schedule_timeout(HZ * 5);
 130 }
 131
 132 static struct platform_t __initdata platforms[] = {
 133         /* Linksys */
 134         [WAP54GV1] = {
 135                 .name           = "Linksys WAP54G V1",
 136                 .buttons        = {
 137                         { .name = "reset",      .gpio = 1 << 0 },
 138                 },
 139                 .leds           = {
 140                         { .name = "diag",       .gpio = 1 << 3 },
 141                         { .name = "wlan",       .gpio = 1 << 4 },
 142                 },
 143         },
 144         [WAP54GV3] = {
 145                 .name           = "Linksys WAP54G V3",
 146                 .buttons        = {
 147                         /* FIXME: verify this */
 148                         { .name = "reset",      .gpio = 1 << 7 },
 149                         { .name = "ses",        .gpio = 1 << 0 },
 150                 },
 151                 .leds           = {
 152                         /* FIXME: diag? */
 153                         { .name = "ses",        .gpio = 1 << 1 },
 154                 },
 155         },
 156         [WRT54GV1] = {
 157                 .name           = "Linksys WRT54G V1.x",
 158                 .buttons        = {
 159                         { .name = "reset",      .gpio = 1 << 6 },
 160                 },
 161                 .leds           = {
 162                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 163                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 164                 },
 165         },
 166         [WRT54G] = {
 167                 .name           = "Linksys WRT54G/GS/GL",
 168                 .buttons        = {
 169                         { .name = "reset",      .gpio = 1 << 6 },
 170                         { .name = "ses",        .gpio = 1 << 4 },
 171                 },
 172                 .leds           = {
 173                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 174                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 175                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 176                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 177                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 178                 },
 179         },
 180         [WRTSL54GS] = {
 181                 .name           = "Linksys WRTSL54GS",
 182                 .buttons        = {
 183                         { .name = "reset",      .gpio = 1 << 6 },
 184                         { .name = "ses",        .gpio = 1 << 4 },
 185                 },
 186                 .leds           = {
 187                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 188                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 189                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 190                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 191                 },
 192         },
 193         [WRT54G3G] = {
 194                 .name           = "Linksys WRT54G3G",
 195                 .buttons        = {
 196                         { .name = "reset",      .gpio = 1 << 6 },
 197                         { .name = "3g",         .gpio = 1 << 4 },
 198                 },
 199                 .leds           = {
 200                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 201                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 202                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 203                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 204                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 205                 },
 206         },
 207         [WRT350N] = {
 208                 .name           = "Linksys WRT350N",
 209                 .buttons        = {
 210                         { .name = "reset",      .gpio = 1 << 6 },
 211                         { .name = "ses",        .gpio = 1 << 8 },
 212                 },
 213                 .leds           = {
 214                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 215                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 216                 },
 217         },
 218         /* Asus */
 219         [WLHDD] = {
 220                 .name           = "ASUS WL-HDD",
 221                 .buttons        = {
 222                         { .name = "reset",      .gpio = 1 << 6 },
 223                 },
 224                 .leds           = {
 225                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 226                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 227                 },
 228         },
 229         [WL300G] = {
 230                 .name           = "ASUS WL-300g",
 231                 .buttons        = {
 232                         { .name = "reset",      .gpio = 1 << 6 },
 233                 },
 234                 .leds           = {
 235                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 236                 },
 237         },
 238         [WL500G] = {
 239                 .name           = "ASUS WL-500g",
 240                 .buttons        = {
 241                         { .name = "reset",      .gpio = 1 << 6 },
 242                 },
 243                 .leds           = {
 244                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 245                 },
 246         },
 247         [WL500GD] = {
 248                 .name           = "ASUS WL-500g Deluxe",
 249                 .buttons        = {
 250                         { .name = "reset",      .gpio = 1 << 6 },
 251                 },
 252                 .leds           = {
 253                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 254                 },
 255         },
 256         [WL500GP] = {
 257                 .name           = "ASUS WL-500g Premium",
 258                 .buttons        = {
 259                         { .name = "reset",      .gpio = 1 << 0 },
 260                         { .name = "ses",        .gpio = 1 << 4 },
 261                 },
 262                 .leds           = {
 263                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 264                 },
 265         },
 266         [WL500W] = {
 267                 .name           = "ASUS WL-500W",
 268                 .buttons        = {
 269                         { .name = "reset",      .gpio = 1 << 6 },
 270                         { .name = "ses",        .gpio = 1 << 7 },
 271                 },
 272                 .leds           = {
 273                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 274                 },
 275         },
 276         [ASUS_4702] = {
 277                 .name           = "ASUS (unknown, BCM4702)",
 278                 .buttons        = {
 279                         { .name = "reset",      .gpio = 1 << 6 },
 280                 },
 281                 .leds           = {
 282                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 283                 },
 284         },
 285         [WL700GE] = {
 286                 .name           = "ASUS WL-700gE",
 287                 .buttons        = {
 288                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 289                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 290                         { .name = "power",      .gpio = 1 << 0 }, // on front
 291                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 292                 },
 293                 .leds           = {
 294 #if 0
 295                         // GPIO that controls power led also enables/disables some essential functions
 296                         // - power to HDD
 297                         // - switch leds
 298                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 299 #endif
 300                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 301                 },
 302                 .platform_init = bcm4780_init,
 303         },
 304         /* Buffalo */
 305         [WHR_G54S] = {
 306                 .name           = "Buffalo WHR-G54S",
 307                 .buttons        = {
 308                         { .name = "reset",      .gpio = 1 << 4 },
 309                         { .name = "bridge",     .gpio = 1 << 5 },
 310                         { .name = "ses",        .gpio = 1 << 0 },
 311                 },
 312                 .leds           = {
 313                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 314                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 315                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 316                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 317                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 318                 },
 319         },
 320         [WBR2_G54] = {
 321                 .name           = "Buffalo WBR2-G54",
 322                 /* FIXME: verify */
 323                 .buttons        = {
 324                         { .name = "reset",      .gpio = 1 << 7 },
 325                 },
 326                 .leds           = {
 327                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 328                 },
 329         },
 330         [WHR_HP_G54] = {
 331                 .name           = "Buffalo WHR-HP-G54",
 332                 .buttons        = {
 333                         { .name = "reset",      .gpio = 1 << 4 },
 334                         { .name = "bridge",     .gpio = 1 << 5 },
 335                         { .name = "ses",        .gpio = 1 << 0 },
 336                 },
 337                 .leds           = {
 338                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 339                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 340                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 341                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 342                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 343                 },
 344         },
 345         [WHR2_A54G54] = {
 346                 .name           = "Buffalo WHR2-A54G54",
 347                 .buttons        = {
 348                         { .name = "reset",      .gpio = 1 << 4 },
 349                 },
 350                 .leds           = {
 351                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 352                 },
 353         },
 354         [WLA2_G54L] = {
 355                 .name           = "Buffalo WLA2-G54L",
 356                 /* FIXME: verify */
 357                 .buttons        = {
 358                         { .name = "reset",      .gpio = 1 << 7 },
 359                 },
 360                 .leds           = {
 361                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 362                 },
 363         },
 364         [WZR_G300N] = {
 365                 .name           = "Buffalo WZR-G300N",
 366                 .buttons        = {
 367                         { .name = "reset",      .gpio = 1 << 4 },
 368                 },
 369                 .leds           = {
 370                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 371                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 372                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 373                 },
 374         },
 375         [WZR_RS_G54] = {
 376                 .name           = "Buffalo WZR-RS-G54",
 377                 .buttons        = {
 378                         { .name = "ses",        .gpio = 1 << 0 },
 379                         { .name = "reset",      .gpio = 1 << 4 },
 380                 },
 381                 .leds           = {
 382                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 383                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 384                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 385                 },
 386         },
 387         [WZR_RS_G54HP] = {
 388                 .name           = "Buffalo WZR-RS-G54HP",
 389                 .buttons        = {
 390                         { .name = "ses",        .gpio = 1 << 0 },
 391                         { .name = "reset",      .gpio = 1 << 4 },
 392                 },
 393                 .leds           = {
 394                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 395                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 396                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 397                 },
 398         },
 399         [BUFFALO_UNKNOWN] = {
 400                 .name           = "Buffalo (unknown)",
 401                 .buttons        = {
 402                         { .name = "reset",      .gpio = 1 << 7 },
 403                 },
 404                 .leds           = {
 405                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 406                 },
 407         },
 408         [BUFFALO_UNKNOWN_4710] = {
 409                 .name           = "Buffalo (unknown, BCM4710)",
 410                 .buttons        = {
 411                         { .name = "reset",      .gpio = 1 << 4 },
 412                 },
 413                 .leds           = {
 414                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 415                 },
 416         },
 417         /* Siemens */
 418         [SE505V1] = {
 419                 .name           = "Siemens SE505 V1",
 420                 .buttons        = {
 421                         /* No usable buttons */
 422                 },
 423                 .leds           = {
 424                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 425                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 426                 },
 427         },
 428         [SE505V2] = {
 429                 .name           = "Siemens SE505 V2",
 430                 .buttons        = {
 431                         /* No usable buttons */
 432                 },
 433                 .leds           = {
 434                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 435                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 436                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 437                 },
 438         },
 439         /* US Robotics */
 440         [USR5461] = {
 441                 .name           = "U.S. Robotics USR5461",
 442                 .buttons        = {
 443                         /* No usable buttons */
 444                 },
 445                 .leds           = {
 446                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 447                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 448                 },
 449         },
 450         /* Dell */
 451         [TM2300] = {
 452                 .name           = "Dell TrueMobile 2300",
 453                 .buttons        = {
 454                         { .name = "reset",      .gpio = 1 << 0 },
 455                 },
 456                 .leds           = {
 457                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 458                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 459                 },
 460         },
 461         /* Motorola */
 462         [WE800G] = {
 463                 .name           = "Motorola WE800G",
 464                 .buttons        = {
 465                         { .name = "reset",      .gpio = 1 << 0 },
 466                 },
 467                 .leds           = {
 468                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 469                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 470                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 471                 },
 472         },
 473         [WR850GV1] = {
 474                 .name           = "Motorola WR850G V1",
 475                 .buttons        = {
 476                         { .name = "reset",      .gpio = 1 << 0 },
 477                 },
 478                 .leds           = {
 479                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 480                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 481                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 482                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 483                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 484                 },
 485         },
 486         [WR850GV2V3] = {
 487                 .name           = "Motorola WR850G V2/V3",
 488                 .buttons        = {
 489                         { .name = "reset",      .gpio = 1 << 5 },
 490                 },
 491                 .leds           = {
 492                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 493                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 494                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 495                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 496                 },
 497         },
 498         [WR850GP] = {
 499                 .name           = "Motorola WR850GP",
 500                 .buttons        = {
 501                         { .name = "reset",      .gpio = 1 << 5 },
 502                 },
 503                 .leds           = {
 504                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 505                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 506                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 507                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 508                 },
 509         },
 510
 511         /* Belkin */
 512         [BELKIN_UNKNOWN] = {
 513                 .name           = "Belkin (unknown)",
 514                 /* FIXME: verify & add detection */
 515                 .buttons        = {
 516                         { .name = "reset",      .gpio = 1 << 7 },
 517                 },
 518                 .leds           = {
 519                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 520                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 521                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 522                 },
 523         },
 524         /* Netgear */
 525         [WGT634U] = {
 526                 .name           = "Netgear WGT634U",
 527                 .buttons        = {
 528                         { .name = "reset",      .gpio = 1 << 2 },
 529                 },
 530                 .leds           = {
 531                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 532                 },
 533         },
 534         /* Trendware */
 535         [TEW411BRPP] = {
 536                 .name           = "Trendware TEW411BRP+",
 537                 .buttons        = {
 538                         { /* No usable buttons */ },
 539                 },
 540                 .leds           = {
 541                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 542                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 543                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 544                 },
 545         },
 546         /* SimpleTech */
 547         [STI_NAS] = {
 548                 .name      = "SimpleTech SimpleShare NAS",
 549                 .buttons        = {
 550                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 551                         { .name = "power",      .gpio = 1 << 0 }, // on back
 552                 },
 553                 .leds      = {
 554                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 555                 },
 556                 .platform_init = bcm4780_init,
 557         },
 558         /* D-Link */
 559         [DIR130] = {
 560                 .name     = "D-Link DIR-130",
 561                 .buttons        = {
 562                         { .name = "reset",      .gpio = 1 << 3},
 563                         { .name = "reserved",   .gpio = 1 << 7},
 564                 },
 565                 .leds      = {
 566                         { .name = "diag",       .gpio = 1 << 0},
 567                         { .name = "blue",       .gpio = 1 << 6},
 568                 },
 569         },
 570         [DIR330] = {
 571                 .name     = "D-Link DIR-330",
 572                 .buttons        = {
 573                         { .name = "reset",      .gpio = 1 << 3},
 574                         { .name = "reserved",   .gpio = 1 << 7},
 575                 },
 576                 .leds      = {
 577                         { .name = "diag",       .gpio = 1 << 0},
 578                         { .name = "usb",        .gpio = 1 << 4},
 579                         { .name = "blue",       .gpio = 1 << 6},
 580                 },
 581         },
 582 };
 583
 584 static struct platform_t __init *platform_detect(void)
 585 {
 586         char *boardnum, *boardtype, *buf;
 587
 588         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 589                 return &platforms[WGT634U];
 590
 591         /* Look for a model identifier */
 592
 593         /* Based on "model_name" */
 594         if (buf = nvram_get("model_name")) {
 595                 if (!strcmp(buf, "DIR-130"))
 596                         return &platforms[DIR130];
 597                 if (!strcmp(buf, "DIR-330"))
 598                         return &platforms[DIR330];
 599         }
 600
 601         /* Based on "model_no" */
 602         if (buf = nvram_get("model_no")) {
 603                 if (!strncmp(buf,"WL700", 5)) /* WL700* */
 604                         return &platforms[WL700GE];
 605         }
 606
 607         /* Based on "ModelId" */
 608         if (buf = nvram_get("ModelId")) {
 609                 if (!strcmp(buf, "WR850GP"))
 610                         return &platforms[WR850GP];
 611                 if (!strcmp(buf,"WX-5565"))
 612                         return &platforms[TM2300];
 613                 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
 614                         return &platforms[WE800G];
 615         }
 616
 617         /* Buffalo */
 618         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 619                 /* Buffalo hardware, check id for specific hardware matches */
 620                 if (!strcmp(buf, "29bb0332"))
 621                         return &platforms[WBR2_G54];
 622                 if (!strcmp(buf, "29129"))
 623                         return &platforms[WLA2_G54L];
 624                 if (!strcmp(buf, "30189"))
 625                         return &platforms[WHR_HP_G54];
 626                 if (!strcmp(buf, "30182"))
 627                         return &platforms[WHR_G54S];
 628                 if (!strcmp(buf, "290441dd"))
 629                         return &platforms[WHR2_A54G54];
 630                 if (!strcmp(buf, "31120"))
 631                         return &platforms[WZR_G300N];
 632                 if (!strcmp(buf, "30083"))
 633                         return &platforms[WZR_RS_G54];
 634                 if (!strcmp(buf, "30103"))
 635                         return &platforms[WZR_RS_G54HP];
 636         }
 637
 638         /* no easy model number, attempt to guess */
 639         boardnum = getvar("boardnum");
 640         boardtype = getvar("boardtype");
 641
 642         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 643                 /* CFE based - newer hardware */
 644                 if (!strcmp(boardnum, "42")) { /* Linksys */
 645                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 646                                 return &platforms[WRT350N];
 647
 648                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 649                                 return &platforms[WRT54G3G];
 650
 651                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 652                                 return &platforms[WRTSL54GS];
 653
 654                         /* default to WRT54G */
 655                         return &platforms[WRT54G];
 656                 }
 657
 658                 if (!strcmp(boardnum, "45")) { /* ASUS */
 659                         if (!strcmp(boardtype,"0x042f"))
 660                                 return &platforms[WL500GP];
 661                         else if (!strcmp(boardtype,"0x0472"))
 662                                 return &platforms[WL500W];
 663                         else
 664                                 return &platforms[WL500GD];
 665                 }
 666
 667                 if (!strcmp(boardnum, "10496"))
 668                         return &platforms[USR5461];
 669
 670         } else { /* PMON based - old stuff */
 671                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 672                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 673                         return &platforms[WR850GV1];
 674                 }
 675                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 676                         if (!strcmp(boardnum, "42"))
 677                                 return &platforms[WRT54GV1];
 678                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 679                                 return &platforms[WAP54GV1];
 680                 }
 681                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 682                         return &platforms[WL500G];
 683                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 684                         /* Either WL-300g or WL-HDD, do more extensive checks */
 685                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 686                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 687                                 return &platforms[WLHDD];
 688                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 689                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 690                                 return &platforms[WL300G];
 691                 }
 692
 693                 /* unknown asus stuff, probably bcm4702 */
 694                 if (!strncmp(boardnum, "asusX", 5))
 695                         return &platforms[ASUS_4702];
 696         }
 697
 698         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 699                 if (!strncmp(boardtype, "bcm94710ap", 10))
 700                         return &platforms[BUFFALO_UNKNOWN_4710];
 701                 else
 702                         return &platforms[BUFFALO_UNKNOWN];
 703         }
 704
 705         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 706                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 707
 708                 return &platforms[WR850GV2V3];
 709         }
 710
 711         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 712                 return &platforms[TEW411BRPP];
 713         }
 714
 715         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 716                 return &platforms[STI_NAS];
 717
 718         /* not found */
 719         return NULL;
 720 }
 721
 722 static void register_buttons(struct button_t *b)
 723 {
 724         for (; b->name; b++)
 725                 platform.button_mask |= b->gpio;
 726
 727         platform.button_mask &= ~gpiomask;
 728
 729         gpio_outen(platform.button_mask, 0);
 730         gpio_control(platform.button_mask, 0);
 731         platform.button_polarity = gpio_in() & platform.button_mask;
 732         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 733         gpio_intmask(platform.button_mask, platform.button_mask);
 734
 735         gpio_set_irqenable(1, button_handler);
 736 }
 737
 738 static void unregister_buttons(struct button_t *b)
 739 {
 740         gpio_intmask(platform.button_mask, 0);
 741
 742         gpio_set_irqenable(0, button_handler);
 743 }
 744
 745
 746 #ifndef LINUX_2_4
 747 static void add_msg(struct event_t *event, char *msg, int argv)
 748 {
 749         char *s;
 750
 751         if (argv)
 752                 return;
 753
 754         s = skb_put(event->skb, strlen(msg) + 1);
 755         strcpy(s, msg);
 756 }
 757
 758 static void hotplug_button(struct work_struct *work)
 759 {
 760         struct event_t *event = container_of(work, struct event_t, wq);
 761         char *s;
 762
 763         if (!uevent_sock)
 764                 return;
 765
 766         event->skb = alloc_skb(2048, GFP_KERNEL);
 767
 768         s = skb_put(event->skb, strlen(event->action) + 2);
 769         sprintf(s, "%s@", event->action);
 770         fill_event(event);
 771
 772         NETLINK_CB(event->skb).dst_group = 1;
 773         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 774
 775         kfree(event);
 776 }
 777
 778 #else /* !LINUX_2_4 */
 779 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 780 {
 781         char *p;
 782
 783         p = kmalloc(size, gfp);
 784         if (p == NULL)
 785                 return NULL;
 786
 787         memset(p, 0, size);
 788
 789         return p;
 790 }
 791
 792 static void add_msg(struct event_t *event, char *msg, int argv)
 793 {
 794         if (argv)
 795                 event->argv[event->anr++] = event->scratch;
 796         else
 797                 event->envp[event->enr++] = event->scratch;
 798
 799         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 800 }
 801
 802 static void hotplug_button(struct event_t *event)
 803 {
 804         char *scratch = kzalloc(256, GFP_KERNEL);
 805         event->scratch = scratch;
 806
 807         add_msg(event, hotplug_path, 1);
 808         add_msg(event, "button", 1);
 809         fill_event(event);
 810         call_usermodehelper (event->argv[0], event->argv, event->envp);
 811         kfree(scratch);
 812         kfree(event);
 813 }
 814 #endif /* !LINUX_2_4 */
 815
 816 static int fill_event (struct event_t *event)
 817 {
 818         static char buf[128];
 819
 820         add_msg(event, "HOME=/", 0);
 821         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 822         add_msg(event, "SUBSYSTEM=button", 0);
 823         snprintf(buf, 128, "ACTION=%s", event->action);
 824         add_msg(event, buf, 0);
 825         snprintf(buf, 128, "BUTTON=%s", event->name);
 826         add_msg(event, buf, 0);
 827         snprintf(buf, 128, "SEEN=%ld", event->seen);
 828         add_msg(event, buf, 0);
 829 #ifndef LINUX_2_4
 830         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 831         add_msg(event, buf, 0);
 832 #endif
 833
 834         return 0;
 835 }
 836
 837
 838 #ifndef LINUX_2_4
 839 static irqreturn_t button_handler(int irq, void *dev_id)
 840 #else
 841 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 842 #endif
 843 {
 844         struct button_t *b;
 845         u32 in, changed;
 846
 847         in = gpio_in() & platform.button_mask;
 848         gpio_intpolarity(platform.button_mask, in);
 849         changed = platform.button_polarity ^ in;
 850         platform.button_polarity = in;
 851
 852         changed &= ~gpio_outen(0, 0);
 853
 854         for (b = platform.buttons; b->name; b++) {
 855                 struct event_t *event;
 856
 857                 if (!(b->gpio & changed)) continue;
 858
 859                 b->pressed ^= 1;
 860
 861                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 862                         event->seen = (jiffies - b->seen)/HZ;
 863                         event->name = b->name;
 864                         event->action = b->pressed ? "pressed" : "released";
 865 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 866                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 867 #else
 868                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 869 #endif
 870                         schedule_work(&event->wq);
 871                 }
 872
 873                 b->seen = jiffies;
 874         }
 875         return IRQ_HANDLED;
 876 }
 877
 878 static void register_leds(struct led_t *l)
 879 {
 880         struct proc_dir_entry *p;
 881         u32 mask = 0;
 882         u32 val = 0;
 883
 884         leds = proc_mkdir("led", diag);
 885         if (!leds)
 886                 return;
 887
 888         for(; l->name; l++) {
 889                 if (l->gpio & gpiomask)
 890                         continue;
 891
 892                 if (l->gpio & GPIO_TYPE_EXTIF) {
 893                         l->state = 0;
 894                         set_led_extif(l);
 895                 } else {
 896                         mask |= l->gpio;
 897                         val |= (l->polarity == NORMAL)?0:l->gpio;
 898                 }
 899
 900                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 901                         l->proc.type = PROC_LED;
 902                         l->proc.ptr = l;
 903                         p->data = (void *) &l->proc;
 904                         p->proc_fops = &diag_proc_fops;
 905                 }
 906         }
 907
 908         gpio_outen(mask, mask);
 909         gpio_control(mask, 0);
 910         gpio_out(mask, val);
 911 }
 912
 913 static void unregister_leds(struct led_t *l)
 914 {
 915         for(; l->name; l++)
 916                 remove_proc_entry(l->name, leds);
 917
 918         remove_proc_entry("led", diag);
 919 }
 920
 921 static void set_led_extif(struct led_t *led)
 922 {
 923         gpio_set_extif(led->gpio, led->state);
 924 }
 925
 926 static void led_flash(unsigned long dummy) {
 927         struct led_t *l;
 928         u32 mask = 0;
 929         u8 extif_blink = 0;
 930
 931         for (l = platform.leds; l->name; l++) {
 932                 if (l->flash) {
 933                         if (l->gpio & GPIO_TYPE_EXTIF) {
 934                                 extif_blink = 1;
 935                                 l->state = !l->state;
 936                                 set_led_extif(l);
 937                         } else {
 938                                 mask |= l->gpio;
 939                         }
 940                 }
 941         }
 942
 943         mask &= ~gpiomask;
 944         if (mask) {
 945                 u32 val = ~gpio_in();
 946
 947                 gpio_outen(mask, mask);
 948                 gpio_control(mask, 0);
 949                 gpio_out(mask, val);
 950         }
 951         if (mask || extif_blink) {
 952                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 953         }
 954 }
 955
 956 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 957 {
 958 #ifdef LINUX_2_4
 959         struct inode *inode = file->f_dentry->d_inode;
 960         struct proc_dir_entry *dent = inode->u.generic_ip;
 961 #else
 962         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 963 #endif
 964         char *page;
 965         int len = 0;
 966
 967         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 968                 return -ENOBUFS;
 969
 970         if (dent->data != NULL) {
 971                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 972                 switch (handler->type) {
 973                         case PROC_LED: {
 974                                 struct led_t * led = (struct led_t *) handler->ptr;
 975                                 if (led->flash) {
 976                                         len = sprintf(page, "f\n");
 977                                 } else {
 978                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 979                                                 len = sprintf(page, "%d\n", led->state);
 980                                         } else {
 981                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 982                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 983                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 984                                         }
 985                                 }
 986                                 break;
 987                         }
 988                         case PROC_MODEL:
 989                                 len = sprintf(page, "%s\n", platform.name);
 990                                 break;
 991                         case PROC_GPIOMASK:
 992                                 len = sprintf(page, "0x%04x\n", gpiomask);
 993                                 break;
 994                 }
 995         }
 996         len += 1;
 997
 998         if (*ppos < len) {
 999                 len = min_t(int, len - *ppos, count);
1000                 if (copy_to_user(buf, (page + *ppos), len)) {
1001                         kfree(page);
1002                         return -EFAULT;
1003                 }
1004                 *ppos += len;
1005         } else {
1006                 len = 0;
1007         }
1008
1009         kfree(page);
1010         return len;
1011 }
1012
1013
1014 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1015 {
1016 #ifdef LINUX_2_4
1017         struct inode *inode = file->f_dentry->d_inode;
1018         struct proc_dir_entry *dent = inode->u.generic_ip;
1019 #else
1020         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1021 #endif
1022         char *page;
1023         int ret = -EINVAL;
1024
1025         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1026                 return -ENOBUFS;
1027
1028         if (copy_from_user(page, buf, count)) {
1029                 kfree(page);
1030                 return -EINVAL;
1031         }
1032         page[count] = 0;
1033
1034         if (dent->data != NULL) {
1035                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1036                 switch (handler->type) {
1037                         case PROC_LED: {
1038                                 struct led_t *led = (struct led_t *) handler->ptr;
1039                                 int p = (led->polarity == NORMAL ? 0 : 1);
1040
1041                                 if (page[0] == 'f') {
1042                                         led->flash = 1;
1043                                         led_flash(0);
1044                                 } else {
1045                                         led->flash = 0;
1046                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1047                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1048                                                 set_led_extif(led);
1049                                         } else {
1050                                                 gpio_outen(led->gpio, led->gpio);
1051                                                 gpio_control(led->gpio, 0);
1052                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1053                                         }
1054                                 }
1055                                 break;
1056                         }
1057                         case PROC_GPIOMASK:
1058                                 gpiomask = simple_strtoul(page, NULL, 0);
1059
1060                                 if (platform.buttons) {
1061                                         unregister_buttons(platform.buttons);
1062                                         register_buttons(platform.buttons);
1063                                 }
1064
1065                                 if (platform.leds) {
1066                                         unregister_leds(platform.leds);
1067                                         register_leds(platform.leds);
1068                                 }
1069                                 break;
1070                 }
1071                 ret = count;
1072         }
1073
1074         kfree(page);
1075         return ret;
1076 }
1077
1078 static int __init diag_init(void)
1079 {
1080         static struct proc_dir_entry *p;
1081         static struct platform_t *detected;
1082
1083         detected = platform_detect();
1084         if (!detected) {
1085                 printk(MODULE_NAME ": Router model not detected.\n");
1086                 return -ENODEV;
1087         }
1088         memcpy(&platform, detected, sizeof(struct platform_t));
1089
1090         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1091         if (platform.platform_init != NULL) {
1092                 platform.platform_init();
1093         }
1094
1095         if (!(diag = proc_mkdir("diag", NULL))) {
1096                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1097                 return -EINVAL;
1098         }
1099
1100         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1101                 p->data = (void *) &proc_model;
1102                 p->proc_fops = &diag_proc_fops;
1103         }
1104
1105         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1106                 p->data = (void *) &proc_gpiomask;
1107                 p->proc_fops = &diag_proc_fops;
1108         }
1109
1110         if (platform.buttons)
1111                 register_buttons(platform.buttons);
1112
1113         if (platform.leds)
1114                 register_leds(platform.leds);
1115
1116         return 0;
1117 }
1118
1119 static void __exit diag_exit(void)
1120 {
1121         del_timer(&led_timer);
1122
1123         if (platform.buttons)
1124                 unregister_buttons(platform.buttons);
1125
1126         if (platform.leds)
1127                 unregister_leds(platform.leds);
1128
1129         remove_proc_entry("model", diag);
1130         remove_proc_entry("gpiomask", diag);
1131         remove_proc_entry("diag", NULL);
1132 }
1133
1134 module_init(diag_init);
1135 module_exit(diag_exit);
1136
1137 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1138 MODULE_LICENSE("GPL");