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         DWL3150,
 117 };
 118
 119 static void __init bcm4780_init(void) {
 120                 int pin = 1 << 3;
 121
 122                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 123                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 124                 gpio_outen(pin, pin);
 125                 gpio_control(pin, 0);
 126                 gpio_out(pin, pin);
 127
 128                 /* Wait 5s, so the HDD can spin up */
 129                 set_current_state(TASK_INTERRUPTIBLE);
 130                 schedule_timeout(HZ * 5);
 131 }
 132
 133 static struct platform_t __initdata platforms[] = {
 134         /* Linksys */
 135         [WAP54GV1] = {
 136                 .name           = "Linksys WAP54G V1",
 137                 .buttons        = {
 138                         { .name = "reset",      .gpio = 1 << 0 },
 139                 },
 140                 .leds           = {
 141                         { .name = "diag",       .gpio = 1 << 3 },
 142                         { .name = "wlan",       .gpio = 1 << 4 },
 143                 },
 144         },
 145         [WAP54GV3] = {
 146                 .name           = "Linksys WAP54G V3",
 147                 .buttons        = {
 148                         /* FIXME: verify this */
 149                         { .name = "reset",      .gpio = 1 << 7 },
 150                         { .name = "ses",        .gpio = 1 << 0 },
 151                 },
 152                 .leds           = {
 153                         /* FIXME: diag? */
 154                         { .name = "ses",        .gpio = 1 << 1 },
 155                 },
 156         },
 157         [WRT54GV1] = {
 158                 .name           = "Linksys WRT54G V1.x",
 159                 .buttons        = {
 160                         { .name = "reset",      .gpio = 1 << 6 },
 161                 },
 162                 .leds           = {
 163                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 164                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 165                 },
 166         },
 167         [WRT54G] = {
 168                 .name           = "Linksys WRT54G/GS/GL",
 169                 .buttons        = {
 170                         { .name = "reset",      .gpio = 1 << 6 },
 171                         { .name = "ses",        .gpio = 1 << 4 },
 172                 },
 173                 .leds           = {
 174                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 175                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 176                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 177                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 178                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 179                 },
 180         },
 181         [WRTSL54GS] = {
 182                 .name           = "Linksys WRTSL54GS",
 183                 .buttons        = {
 184                         { .name = "reset",      .gpio = 1 << 6 },
 185                         { .name = "ses",        .gpio = 1 << 4 },
 186                 },
 187                 .leds           = {
 188                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 189                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 190                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 191                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 192                 },
 193         },
 194         [WRT54G3G] = {
 195                 .name           = "Linksys WRT54G3G",
 196                 .buttons        = {
 197                         { .name = "reset",      .gpio = 1 << 6 },
 198                         { .name = "3g",         .gpio = 1 << 4 },
 199                 },
 200                 .leds           = {
 201                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 202                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 203                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 204                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 205                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 206                 },
 207         },
 208         [WRT350N] = {
 209                 .name           = "Linksys WRT350N",
 210                 .buttons        = {
 211                         { .name = "reset",      .gpio = 1 << 6 },
 212                         { .name = "ses",        .gpio = 1 << 8 },
 213                 },
 214                 .leds           = {
 215                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 216                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 217                 },
 218         },
 219         /* Asus */
 220         [WLHDD] = {
 221                 .name           = "ASUS WL-HDD",
 222                 .buttons        = {
 223                         { .name = "reset",      .gpio = 1 << 6 },
 224                 },
 225                 .leds           = {
 226                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 227                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 228                 },
 229         },
 230         [WL300G] = {
 231                 .name           = "ASUS WL-300g",
 232                 .buttons        = {
 233                         { .name = "reset",      .gpio = 1 << 6 },
 234                 },
 235                 .leds           = {
 236                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 237                 },
 238         },
 239         [WL500G] = {
 240                 .name           = "ASUS WL-500g",
 241                 .buttons        = {
 242                         { .name = "reset",      .gpio = 1 << 6 },
 243                 },
 244                 .leds           = {
 245                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 246                 },
 247         },
 248         [WL500GD] = {
 249                 .name           = "ASUS WL-500g Deluxe",
 250                 .buttons        = {
 251                         { .name = "reset",      .gpio = 1 << 6 },
 252                 },
 253                 .leds           = {
 254                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 255                 },
 256         },
 257         [WL500GP] = {
 258                 .name           = "ASUS WL-500g Premium",
 259                 .buttons        = {
 260                         { .name = "reset",      .gpio = 1 << 0 },
 261                         { .name = "ses",        .gpio = 1 << 4 },
 262                 },
 263                 .leds           = {
 264                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 265                 },
 266         },
 267         [WL500W] = {
 268                 .name           = "ASUS WL-500W",
 269                 .buttons        = {
 270                         { .name = "reset",      .gpio = 1 << 6 },
 271                         { .name = "ses",        .gpio = 1 << 7 },
 272                 },
 273                 .leds           = {
 274                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 275                 },
 276         },
 277         [ASUS_4702] = {
 278                 .name           = "ASUS (unknown, BCM4702)",
 279                 .buttons        = {
 280                         { .name = "reset",      .gpio = 1 << 6 },
 281                 },
 282                 .leds           = {
 283                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 284                 },
 285         },
 286         [WL700GE] = {
 287                 .name           = "ASUS WL-700gE",
 288                 .buttons        = {
 289                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 290                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 291                         { .name = "power",      .gpio = 1 << 0 }, // on front
 292                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 293                 },
 294                 .leds           = {
 295 #if 0
 296                         // GPIO that controls power led also enables/disables some essential functions
 297                         // - power to HDD
 298                         // - switch leds
 299                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 300 #endif
 301                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 302                 },
 303                 .platform_init = bcm4780_init,
 304         },
 305         /* Buffalo */
 306         [WHR_G54S] = {
 307                 .name           = "Buffalo WHR-G54S",
 308                 .buttons        = {
 309                         { .name = "reset",      .gpio = 1 << 4 },
 310                         { .name = "bridge",     .gpio = 1 << 5 },
 311                         { .name = "ses",        .gpio = 1 << 0 },
 312                 },
 313                 .leds           = {
 314                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 315                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 316                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 317                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 318                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 319                 },
 320         },
 321         [WBR2_G54] = {
 322                 .name           = "Buffalo WBR2-G54",
 323                 /* FIXME: verify */
 324                 .buttons        = {
 325                         { .name = "reset",      .gpio = 1 << 7 },
 326                 },
 327                 .leds           = {
 328                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 329                 },
 330         },
 331         [WHR_HP_G54] = {
 332                 .name           = "Buffalo WHR-HP-G54",
 333                 .buttons        = {
 334                         { .name = "reset",      .gpio = 1 << 4 },
 335                         { .name = "bridge",     .gpio = 1 << 5 },
 336                         { .name = "ses",        .gpio = 1 << 0 },
 337                 },
 338                 .leds           = {
 339                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 340                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 341                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 342                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 343                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 344                 },
 345         },
 346         [WHR2_A54G54] = {
 347                 .name           = "Buffalo WHR2-A54G54",
 348                 .buttons        = {
 349                         { .name = "reset",      .gpio = 1 << 4 },
 350                 },
 351                 .leds           = {
 352                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 353                 },
 354         },
 355         [WLA2_G54L] = {
 356                 .name           = "Buffalo WLA2-G54L",
 357                 /* FIXME: verify */
 358                 .buttons        = {
 359                         { .name = "reset",      .gpio = 1 << 7 },
 360                 },
 361                 .leds           = {
 362                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 363                 },
 364         },
 365         [WZR_G300N] = {
 366                 .name           = "Buffalo WZR-G300N",
 367                 .buttons        = {
 368                         { .name = "reset",      .gpio = 1 << 4 },
 369                 },
 370                 .leds           = {
 371                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 372                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 373                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 374                 },
 375         },
 376         [WZR_RS_G54] = {
 377                 .name           = "Buffalo WZR-RS-G54",
 378                 .buttons        = {
 379                         { .name = "ses",        .gpio = 1 << 0 },
 380                         { .name = "reset",      .gpio = 1 << 4 },
 381                 },
 382                 .leds           = {
 383                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 384                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 385                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 386                 },
 387         },
 388         [WZR_RS_G54HP] = {
 389                 .name           = "Buffalo WZR-RS-G54HP",
 390                 .buttons        = {
 391                         { .name = "ses",        .gpio = 1 << 0 },
 392                         { .name = "reset",      .gpio = 1 << 4 },
 393                 },
 394                 .leds           = {
 395                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 396                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 397                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 398                 },
 399         },
 400         [BUFFALO_UNKNOWN] = {
 401                 .name           = "Buffalo (unknown)",
 402                 .buttons        = {
 403                         { .name = "reset",      .gpio = 1 << 7 },
 404                 },
 405                 .leds           = {
 406                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 407                 },
 408         },
 409         [BUFFALO_UNKNOWN_4710] = {
 410                 .name           = "Buffalo (unknown, BCM4710)",
 411                 .buttons        = {
 412                         { .name = "reset",      .gpio = 1 << 4 },
 413                 },
 414                 .leds           = {
 415                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 416                 },
 417         },
 418         /* Siemens */
 419         [SE505V1] = {
 420                 .name           = "Siemens SE505 V1",
 421                 .buttons        = {
 422                         /* No usable buttons */
 423                 },
 424                 .leds           = {
 425                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 426                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 427                 },
 428         },
 429         [SE505V2] = {
 430                 .name           = "Siemens SE505 V2",
 431                 .buttons        = {
 432                         /* No usable buttons */
 433                 },
 434                 .leds           = {
 435                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 436                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 437                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 438                 },
 439         },
 440         /* US Robotics */
 441         [USR5461] = {
 442                 .name           = "U.S. Robotics USR5461",
 443                 .buttons        = {
 444                         /* No usable buttons */
 445                 },
 446                 .leds           = {
 447                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 448                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 449                 },
 450         },
 451         /* Dell */
 452         [TM2300] = {
 453                 .name           = "Dell TrueMobile 2300",
 454                 .buttons        = {
 455                         { .name = "reset",      .gpio = 1 << 0 },
 456                 },
 457                 .leds           = {
 458                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 459                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 460                 },
 461         },
 462         /* Motorola */
 463         [WE800G] = {
 464                 .name           = "Motorola WE800G",
 465                 .buttons        = {
 466                         { .name = "reset",      .gpio = 1 << 0 },
 467                 },
 468                 .leds           = {
 469                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 470                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 471                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 472                 },
 473         },
 474         [WR850GV1] = {
 475                 .name           = "Motorola WR850G V1",
 476                 .buttons        = {
 477                         { .name = "reset",      .gpio = 1 << 0 },
 478                 },
 479                 .leds           = {
 480                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 481                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 482                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 483                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 484                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 485                 },
 486         },
 487         [WR850GV2V3] = {
 488                 .name           = "Motorola WR850G V2/V3",
 489                 .buttons        = {
 490                         { .name = "reset",      .gpio = 1 << 5 },
 491                 },
 492                 .leds           = {
 493                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 494                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 495                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 496                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 497                 },
 498         },
 499         [WR850GP] = {
 500                 .name           = "Motorola WR850GP",
 501                 .buttons        = {
 502                         { .name = "reset",      .gpio = 1 << 5 },
 503                 },
 504                 .leds           = {
 505                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 506                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 507                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 508                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 509                 },
 510         },
 511
 512         /* Belkin */
 513         [BELKIN_UNKNOWN] = {
 514                 .name           = "Belkin (unknown)",
 515                 /* FIXME: verify & add detection */
 516                 .buttons        = {
 517                         { .name = "reset",      .gpio = 1 << 7 },
 518                 },
 519                 .leds           = {
 520                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 521                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 522                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 523                 },
 524         },
 525         /* Netgear */
 526         [WGT634U] = {
 527                 .name           = "Netgear WGT634U",
 528                 .buttons        = {
 529                         { .name = "reset",      .gpio = 1 << 2 },
 530                 },
 531                 .leds           = {
 532                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 533                 },
 534         },
 535         /* Trendware */
 536         [TEW411BRPP] = {
 537                 .name           = "Trendware TEW411BRP+",
 538                 .buttons        = {
 539                         { /* No usable buttons */ },
 540                 },
 541                 .leds           = {
 542                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 543                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 544                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 545                 },
 546         },
 547         /* SimpleTech */
 548         [STI_NAS] = {
 549                 .name      = "SimpleTech SimpleShare NAS",
 550                 .buttons        = {
 551                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 552                         { .name = "power",      .gpio = 1 << 0 }, // on back
 553                 },
 554                 .leds      = {
 555                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 556                 },
 557                 .platform_init = bcm4780_init,
 558         },
 559         /* D-Link */
 560         [DIR130] = {
 561                 .name     = "D-Link DIR-130",
 562                 .buttons        = {
 563                         { .name = "reset",      .gpio = 1 << 3},
 564                         { .name = "reserved",   .gpio = 1 << 7},
 565                 },
 566                 .leds      = {
 567                         { .name = "diag",       .gpio = 1 << 0},
 568                         { .name = "blue",       .gpio = 1 << 6},
 569                 },
 570         },
 571         [DIR330] = {
 572                 .name     = "D-Link DIR-330",
 573                 .buttons        = {
 574                         { .name = "reset",      .gpio = 1 << 3},
 575                         { .name = "reserved",   .gpio = 1 << 7},
 576                 },
 577                 .leds      = {
 578                         { .name = "diag",       .gpio = 1 << 0},
 579                         { .name = "usb",        .gpio = 1 << 4},
 580                         { .name = "blue",       .gpio = 1 << 6},
 581                 },
 582         },
 583         [DWL3150] = {
 584                 .name   = "D-Link DWL-3150",
 585                 .buttons        = {
 586                         { .name = "reset",      .gpio = 1 << 7},
 587                 },
 588                 .leds     = {
 589                         { .name = "diag",       .gpio = 1 << 2},
 590                         { .name = "status",     .gpio = 1 << 1},
 591                 },
 592         },
 593 };
 594
 595 static struct platform_t __init *platform_detect(void)
 596 {
 597         char *boardnum, *boardtype, *buf;
 598
 599         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 600                 return &platforms[WGT634U];
 601
 602         /* Look for a model identifier */
 603
 604         /* Based on "model_name" */
 605         if (buf = nvram_get("model_name")) {
 606                 if (!strcmp(buf, "DIR-130"))
 607                         return &platforms[DIR130];
 608                 if (!strcmp(buf, "DIR-330"))
 609                         return &platforms[DIR330];
 610         }
 611
 612         /* Based on "model_no" */
 613         if (buf = nvram_get("model_no")) {
 614                 if (!strncmp(buf,"WL700", 5)) /* WL700* */
 615                         return &platforms[WL700GE];
 616         }
 617
 618         /* Based on "ModelId" */
 619         if (buf = nvram_get("ModelId")) {
 620                 if (!strcmp(buf, "WR850GP"))
 621                         return &platforms[WR850GP];
 622                 if (!strcmp(buf,"WX-5565"))
 623                         return &platforms[TM2300];
 624                 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
 625                         return &platforms[WE800G];
 626         }
 627
 628         /* Buffalo */
 629         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 630                 /* Buffalo hardware, check id for specific hardware matches */
 631                 if (!strcmp(buf, "29bb0332"))
 632                         return &platforms[WBR2_G54];
 633                 if (!strcmp(buf, "29129"))
 634                         return &platforms[WLA2_G54L];
 635                 if (!strcmp(buf, "30189"))
 636                         return &platforms[WHR_HP_G54];
 637                 if (!strcmp(buf, "30182"))
 638                         return &platforms[WHR_G54S];
 639                 if (!strcmp(buf, "290441dd"))
 640                         return &platforms[WHR2_A54G54];
 641                 if (!strcmp(buf, "31120"))
 642                         return &platforms[WZR_G300N];
 643                 if (!strcmp(buf, "30083"))
 644                         return &platforms[WZR_RS_G54];
 645                 if (!strcmp(buf, "30103"))
 646                         return &platforms[WZR_RS_G54HP];
 647         }
 648
 649         /* no easy model number, attempt to guess */
 650         boardnum = getvar("boardnum");
 651         boardtype = getvar("boardtype");
 652
 653         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 654                 /* CFE based - newer hardware */
 655                 if (!strcmp(boardnum, "42")) { /* Linksys */
 656                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 657                                 return &platforms[WRT350N];
 658
 659                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 660                                 return &platforms[WRT54G3G];
 661
 662                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 663                                 return &platforms[WRTSL54GS];
 664
 665                         /* default to WRT54G */
 666                         return &platforms[WRT54G];
 667                 }
 668
 669                 if (!strcmp(boardnum, "45")) { /* ASUS */
 670                         if (!strcmp(boardtype,"0x042f"))
 671                                 return &platforms[WL500GP];
 672                         else if (!strcmp(boardtype,"0x0472"))
 673                                 return &platforms[WL500W];
 674                         else
 675                                 return &platforms[WL500GD];
 676                 }
 677
 678                 if (!strcmp(boardnum, "10496"))
 679                         return &platforms[USR5461];
 680
 681         } else { /* PMON based - old stuff */
 682                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 683                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 684                         return &platforms[WR850GV1];
 685                 }
 686                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 687                         if (!strcmp(boardnum, "42"))
 688                                 return &platforms[WRT54GV1];
 689                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 690                                 return &platforms[WAP54GV1];
 691                 }
 692                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 693                         return &platforms[WL500G];
 694                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 695                         /* Either WL-300g or WL-HDD, do more extensive checks */
 696                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 697                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 698                                 return &platforms[WLHDD];
 699                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 700                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 701                                 return &platforms[WL300G];
 702                 }
 703
 704                 /* unknown asus stuff, probably bcm4702 */
 705                 if (!strncmp(boardnum, "asusX", 5))
 706                         return &platforms[ASUS_4702];
 707         }
 708
 709         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 710                 if (!strncmp(boardtype, "bcm94710ap", 10))
 711                         return &platforms[BUFFALO_UNKNOWN_4710];
 712                 else
 713                         return &platforms[BUFFALO_UNKNOWN];
 714         }
 715
 716         if (!strncmp(getvar("CFEver"), "MotoWRv2", 8) ||
 717                 !strncmp(getvar("CFEver"), "MotoWRv3", 8) ||
 718                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 719
 720                 return &platforms[WR850GV2V3];
 721         }
 722
 723         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 724                 return &platforms[TEW411BRPP];
 725         }
 726
 727         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 728                 return &platforms[STI_NAS];
 729
 730         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 731                 return &platforms[DWL3150];
 732
 733         /* not found */
 734         return NULL;
 735 }
 736
 737 static void register_buttons(struct button_t *b)
 738 {
 739         for (; b->name; b++)
 740                 platform.button_mask |= b->gpio;
 741
 742         platform.button_mask &= ~gpiomask;
 743
 744         gpio_outen(platform.button_mask, 0);
 745         gpio_control(platform.button_mask, 0);
 746         platform.button_polarity = gpio_in() & platform.button_mask;
 747         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 748         gpio_intmask(platform.button_mask, platform.button_mask);
 749
 750         gpio_set_irqenable(1, button_handler);
 751 }
 752
 753 static void unregister_buttons(struct button_t *b)
 754 {
 755         gpio_intmask(platform.button_mask, 0);
 756
 757         gpio_set_irqenable(0, button_handler);
 758 }
 759
 760
 761 #ifndef LINUX_2_4
 762 static void add_msg(struct event_t *event, char *msg, int argv)
 763 {
 764         char *s;
 765
 766         if (argv)
 767                 return;
 768
 769         s = skb_put(event->skb, strlen(msg) + 1);
 770         strcpy(s, msg);
 771 }
 772
 773 static void hotplug_button(struct work_struct *work)
 774 {
 775         struct event_t *event = container_of(work, struct event_t, wq);
 776         char *s;
 777
 778         if (!uevent_sock)
 779                 return;
 780
 781         event->skb = alloc_skb(2048, GFP_KERNEL);
 782
 783         s = skb_put(event->skb, strlen(event->action) + 2);
 784         sprintf(s, "%s@", event->action);
 785         fill_event(event);
 786
 787         NETLINK_CB(event->skb).dst_group = 1;
 788         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 789
 790         kfree(event);
 791 }
 792
 793 #else /* !LINUX_2_4 */
 794 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 795 {
 796         char *p;
 797
 798         p = kmalloc(size, gfp);
 799         if (p == NULL)
 800                 return NULL;
 801
 802         memset(p, 0, size);
 803
 804         return p;
 805 }
 806
 807 static void add_msg(struct event_t *event, char *msg, int argv)
 808 {
 809         if (argv)
 810                 event->argv[event->anr++] = event->scratch;
 811         else
 812                 event->envp[event->enr++] = event->scratch;
 813
 814         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 815 }
 816
 817 static void hotplug_button(struct event_t *event)
 818 {
 819         char *scratch = kzalloc(256, GFP_KERNEL);
 820         event->scratch = scratch;
 821
 822         add_msg(event, hotplug_path, 1);
 823         add_msg(event, "button", 1);
 824         fill_event(event);
 825         call_usermodehelper (event->argv[0], event->argv, event->envp);
 826         kfree(scratch);
 827         kfree(event);
 828 }
 829 #endif /* !LINUX_2_4 */
 830
 831 static int fill_event (struct event_t *event)
 832 {
 833         static char buf[128];
 834
 835         add_msg(event, "HOME=/", 0);
 836         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 837         add_msg(event, "SUBSYSTEM=button", 0);
 838         snprintf(buf, 128, "ACTION=%s", event->action);
 839         add_msg(event, buf, 0);
 840         snprintf(buf, 128, "BUTTON=%s", event->name);
 841         add_msg(event, buf, 0);
 842         snprintf(buf, 128, "SEEN=%ld", event->seen);
 843         add_msg(event, buf, 0);
 844 #ifndef LINUX_2_4
 845         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 846         add_msg(event, buf, 0);
 847 #endif
 848
 849         return 0;
 850 }
 851
 852
 853 #ifndef LINUX_2_4
 854 static irqreturn_t button_handler(int irq, void *dev_id)
 855 #else
 856 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 857 #endif
 858 {
 859         struct button_t *b;
 860         u32 in, changed;
 861
 862         in = gpio_in() & platform.button_mask;
 863         gpio_intpolarity(platform.button_mask, in);
 864         changed = platform.button_polarity ^ in;
 865         platform.button_polarity = in;
 866
 867         changed &= ~gpio_outen(0, 0);
 868
 869         for (b = platform.buttons; b->name; b++) {
 870                 struct event_t *event;
 871
 872                 if (!(b->gpio & changed)) continue;
 873
 874                 b->pressed ^= 1;
 875
 876                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 877                         event->seen = (jiffies - b->seen)/HZ;
 878                         event->name = b->name;
 879                         event->action = b->pressed ? "pressed" : "released";
 880 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 881                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 882 #else
 883                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 884 #endif
 885                         schedule_work(&event->wq);
 886                 }
 887
 888                 b->seen = jiffies;
 889         }
 890         return IRQ_HANDLED;
 891 }
 892
 893 static void register_leds(struct led_t *l)
 894 {
 895         struct proc_dir_entry *p;
 896         u32 mask = 0;
 897         u32 oe_mask = 0;
 898         u32 val = 0;
 899
 900         leds = proc_mkdir("led", diag);
 901         if (!leds)
 902                 return;
 903
 904         for(; l->name; l++) {
 905                 if (l->gpio & gpiomask)
 906                         continue;
 907
 908                 if (l->gpio & GPIO_TYPE_EXTIF) {
 909                         l->state = 0;
 910                         set_led_extif(l);
 911                 } else {
 912                         if (l->polarity != INPUT) oe_mask != l->gpio;
 913                         mask |= l->gpio;
 914                         val |= (l->polarity == NORMAL)?0:l->gpio;
 915                 }
 916
 917                 if (l->polarity == INPUT) continue;
 918
 919                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 920                         l->proc.type = PROC_LED;
 921                         l->proc.ptr = l;
 922                         p->data = (void *) &l->proc;
 923                         p->proc_fops = &diag_proc_fops;
 924                 }
 925         }
 926
 927         gpio_outen(mask, oe_mask);
 928         gpio_control(mask, 0);
 929         gpio_out(mask, val);
 930 }
 931
 932 static void unregister_leds(struct led_t *l)
 933 {
 934         for(; l->name; l++)
 935                 remove_proc_entry(l->name, leds);
 936
 937         remove_proc_entry("led", diag);
 938 }
 939
 940 static void set_led_extif(struct led_t *led)
 941 {
 942         gpio_set_extif(led->gpio, led->state);
 943 }
 944
 945 static void led_flash(unsigned long dummy) {
 946         struct led_t *l;
 947         u32 mask = 0;
 948         u8 extif_blink = 0;
 949
 950         for (l = platform.leds; l->name; l++) {
 951                 if (l->flash) {
 952                         if (l->gpio & GPIO_TYPE_EXTIF) {
 953                                 extif_blink = 1;
 954                                 l->state = !l->state;
 955                                 set_led_extif(l);
 956                         } else {
 957                                 mask |= l->gpio;
 958                         }
 959                 }
 960         }
 961
 962         mask &= ~gpiomask;
 963         if (mask) {
 964                 u32 val = ~gpio_in();
 965
 966                 gpio_outen(mask, mask);
 967                 gpio_control(mask, 0);
 968                 gpio_out(mask, val);
 969         }
 970         if (mask || extif_blink) {
 971                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 972         }
 973 }
 974
 975 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 976 {
 977 #ifdef LINUX_2_4
 978         struct inode *inode = file->f_dentry->d_inode;
 979         struct proc_dir_entry *dent = inode->u.generic_ip;
 980 #else
 981         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 982 #endif
 983         char *page;
 984         int len = 0;
 985
 986         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 987                 return -ENOBUFS;
 988
 989         if (dent->data != NULL) {
 990                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 991                 switch (handler->type) {
 992                         case PROC_LED: {
 993                                 struct led_t * led = (struct led_t *) handler->ptr;
 994                                 if (led->flash) {
 995                                         len = sprintf(page, "f\n");
 996                                 } else {
 997                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 998                                                 len = sprintf(page, "%d\n", led->state);
 999                                         } else {
1000                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1001                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1002                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1003                                         }
1004                                 }
1005                                 break;
1006                         }
1007                         case PROC_MODEL:
1008                                 len = sprintf(page, "%s\n", platform.name);
1009                                 break;
1010                         case PROC_GPIOMASK:
1011                                 len = sprintf(page, "0x%04x\n", gpiomask);
1012                                 break;
1013                 }
1014         }
1015         len += 1;
1016
1017         if (*ppos < len) {
1018                 len = min_t(int, len - *ppos, count);
1019                 if (copy_to_user(buf, (page + *ppos), len)) {
1020                         kfree(page);
1021                         return -EFAULT;
1022                 }
1023                 *ppos += len;
1024         } else {
1025                 len = 0;
1026         }
1027
1028         kfree(page);
1029         return len;
1030 }
1031
1032
1033 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1034 {
1035 #ifdef LINUX_2_4
1036         struct inode *inode = file->f_dentry->d_inode;
1037         struct proc_dir_entry *dent = inode->u.generic_ip;
1038 #else
1039         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1040 #endif
1041         char *page;
1042         int ret = -EINVAL;
1043
1044         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1045                 return -ENOBUFS;
1046
1047         if (copy_from_user(page, buf, count)) {
1048                 kfree(page);
1049                 return -EINVAL;
1050         }
1051         page[count] = 0;
1052
1053         if (dent->data != NULL) {
1054                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1055                 switch (handler->type) {
1056                         case PROC_LED: {
1057                                 struct led_t *led = (struct led_t *) handler->ptr;
1058                                 int p = (led->polarity == NORMAL ? 0 : 1);
1059
1060                                 if (page[0] == 'f') {
1061                                         led->flash = 1;
1062                                         led_flash(0);
1063                                 } else {
1064                                         led->flash = 0;
1065                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1066                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1067                                                 set_led_extif(led);
1068                                         } else {
1069                                                 gpio_outen(led->gpio, led->gpio);
1070                                                 gpio_control(led->gpio, 0);
1071                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1072                                         }
1073                                 }
1074                                 break;
1075                         }
1076                         case PROC_GPIOMASK:
1077                                 gpiomask = simple_strtoul(page, NULL, 0);
1078
1079                                 if (platform.buttons) {
1080                                         unregister_buttons(platform.buttons);
1081                                         register_buttons(platform.buttons);
1082                                 }
1083
1084                                 if (platform.leds) {
1085                                         unregister_leds(platform.leds);
1086                                         register_leds(platform.leds);
1087                                 }
1088                                 break;
1089                 }
1090                 ret = count;
1091         }
1092
1093         kfree(page);
1094         return ret;
1095 }
1096
1097 static int __init diag_init(void)
1098 {
1099         static struct proc_dir_entry *p;
1100         static struct platform_t *detected;
1101
1102         detected = platform_detect();
1103         if (!detected) {
1104                 printk(MODULE_NAME ": Router model not detected.\n");
1105                 return -ENODEV;
1106         }
1107         memcpy(&platform, detected, sizeof(struct platform_t));
1108
1109         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1110         if (platform.platform_init != NULL) {
1111                 platform.platform_init();
1112         }
1113
1114         if (!(diag = proc_mkdir("diag", NULL))) {
1115                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1116                 return -EINVAL;
1117         }
1118
1119         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1120                 p->data = (void *) &proc_model;
1121                 p->proc_fops = &diag_proc_fops;
1122         }
1123
1124         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1125                 p->data = (void *) &proc_gpiomask;
1126                 p->proc_fops = &diag_proc_fops;
1127         }
1128
1129         if (platform.buttons)
1130                 register_buttons(platform.buttons);
1131
1132         if (platform.leds)
1133                 register_leds(platform.leds);
1134
1135         return 0;
1136 }
1137
1138 static void __exit diag_exit(void)
1139 {
1140         del_timer(&led_timer);
1141
1142         if (platform.buttons)
1143                 unregister_buttons(platform.buttons);
1144
1145         if (platform.leds)
1146                 unregister_leds(platform.leds);
1147
1148         remove_proc_entry("model", diag);
1149         remove_proc_entry("gpiomask", diag);
1150         remove_proc_entry("diag", NULL);
1151 }
1152
1153 module_init(diag_init);
1154 module_exit(diag_exit);
1155
1156 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1157 MODULE_LICENSE("GPL");