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         WHR_G125,
  78         WHR2_A54G54,
  79         WLA2_G54L,
  80         WZR_G300N,
  81         WZR_RS_G54,
  82         WZR_RS_G54HP,
  83         BUFFALO_UNKNOWN,
  84         BUFFALO_UNKNOWN_4710,
  85
  86         /* Siemens */
  87         SE505V1,
  88         SE505V2,
  89
  90         /* US Robotics */
  91         USR5461,
  92
  93         /* Dell */
  94         TM2300,
  95
  96         /* Motorola */
  97         WE800G,
  98         WR850GV1,
  99         WR850GV2V3,
 100         WR850GP,
 101
 102         /* Belkin */
 103         BELKIN_UNKNOWN,
 104
 105         /* Netgear */
 106         WGT634U,
 107
 108         /* Trendware */
 109         TEW411BRPP,
 110
 111         /* SimpleTech */
 112         STI_NAS,
 113
 114         /* D-Link */
 115         DIR130,
 116         DIR330,
 117         DWL3150,
 118 };
 119
 120 static void __init bcm4780_init(void) {
 121                 int pin = 1 << 3;
 122
 123                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 124                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 125                 gpio_outen(pin, pin);
 126                 gpio_control(pin, 0);
 127                 gpio_out(pin, pin);
 128
 129                 /* Wait 5s, so the HDD can spin up */
 130                 set_current_state(TASK_INTERRUPTIBLE);
 131                 schedule_timeout(HZ * 5);
 132 }
 133
 134 static struct platform_t __initdata platforms[] = {
 135         /* Linksys */
 136         [WAP54GV1] = {
 137                 .name           = "Linksys WAP54G V1",
 138                 .buttons        = {
 139                         { .name = "reset",      .gpio = 1 << 0 },
 140                 },
 141                 .leds           = {
 142                         { .name = "diag",       .gpio = 1 << 3 },
 143                         { .name = "wlan",       .gpio = 1 << 4 },
 144                 },
 145         },
 146         [WAP54GV3] = {
 147                 .name           = "Linksys WAP54G V3",
 148                 .buttons        = {
 149                         /* FIXME: verify this */
 150                         { .name = "reset",      .gpio = 1 << 7 },
 151                         { .name = "ses",        .gpio = 1 << 0 },
 152                 },
 153                 .leds           = {
 154                         /* FIXME: diag? */
 155                         { .name = "ses",        .gpio = 1 << 1 },
 156                 },
 157         },
 158         [WRT54GV1] = {
 159                 .name           = "Linksys WRT54G V1.x",
 160                 .buttons        = {
 161                         { .name = "reset",      .gpio = 1 << 6 },
 162                 },
 163                 .leds           = {
 164                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 165                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 166                 },
 167         },
 168         [WRT54G] = {
 169                 .name           = "Linksys WRT54G/GS/GL",
 170                 .buttons        = {
 171                         { .name = "reset",      .gpio = 1 << 6 },
 172                         { .name = "ses",        .gpio = 1 << 4 },
 173                 },
 174                 .leds           = {
 175                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 176                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 177                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 178                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 179                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 180                 },
 181         },
 182         [WRTSL54GS] = {
 183                 .name           = "Linksys WRTSL54GS",
 184                 .buttons        = {
 185                         { .name = "reset",      .gpio = 1 << 6 },
 186                         { .name = "ses",        .gpio = 1 << 4 },
 187                 },
 188                 .leds           = {
 189                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 190                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 191                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 192                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 193                 },
 194         },
 195         [WRT54G3G] = {
 196                 .name           = "Linksys WRT54G3G",
 197                 .buttons        = {
 198                         { .name = "reset",      .gpio = 1 << 6 },
 199                         { .name = "3g",         .gpio = 1 << 4 },
 200                 },
 201                 .leds           = {
 202                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 203                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 204                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 205                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 206                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 207                 },
 208         },
 209         [WRT350N] = {
 210                 .name           = "Linksys WRT350N",
 211                 .buttons        = {
 212                         { .name = "reset",      .gpio = 1 << 6 },
 213                         { .name = "ses",        .gpio = 1 << 8 },
 214                 },
 215                 .leds           = {
 216                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 217                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 218                 },
 219         },
 220         /* Asus */
 221         [WLHDD] = {
 222                 .name           = "ASUS WL-HDD",
 223                 .buttons        = {
 224                         { .name = "reset",      .gpio = 1 << 6 },
 225                 },
 226                 .leds           = {
 227                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 228                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 229                 },
 230         },
 231         [WL300G] = {
 232                 .name           = "ASUS WL-300g",
 233                 .buttons        = {
 234                         { .name = "reset",      .gpio = 1 << 6 },
 235                 },
 236                 .leds           = {
 237                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 238                 },
 239         },
 240         [WL500G] = {
 241                 .name           = "ASUS WL-500g",
 242                 .buttons        = {
 243                         { .name = "reset",      .gpio = 1 << 6 },
 244                 },
 245                 .leds           = {
 246                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 247                 },
 248         },
 249         [WL500GD] = {
 250                 .name           = "ASUS WL-500g Deluxe",
 251                 .buttons        = {
 252                         { .name = "reset",      .gpio = 1 << 6 },
 253                 },
 254                 .leds           = {
 255                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 256                 },
 257         },
 258         [WL500GP] = {
 259                 .name           = "ASUS WL-500g Premium",
 260                 .buttons        = {
 261                         { .name = "reset",      .gpio = 1 << 0 },
 262                         { .name = "ses",        .gpio = 1 << 4 },
 263                 },
 264                 .leds           = {
 265                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 266                 },
 267         },
 268         [WL500W] = {
 269                 .name           = "ASUS WL-500W",
 270                 .buttons        = {
 271                         { .name = "reset",      .gpio = 1 << 6 },
 272                         { .name = "ses",        .gpio = 1 << 7 },
 273                 },
 274                 .leds           = {
 275                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 276                 },
 277         },
 278         [ASUS_4702] = {
 279                 .name           = "ASUS (unknown, BCM4702)",
 280                 .buttons        = {
 281                         { .name = "reset",      .gpio = 1 << 6 },
 282                 },
 283                 .leds           = {
 284                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 285                 },
 286         },
 287         [WL700GE] = {
 288                 .name           = "ASUS WL-700gE",
 289                 .buttons        = {
 290                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 291                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 292                         { .name = "power",      .gpio = 1 << 0 }, // on front
 293                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 294                 },
 295                 .leds           = {
 296 #if 0
 297                         // GPIO that controls power led also enables/disables some essential functions
 298                         // - power to HDD
 299                         // - switch leds
 300                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 301 #endif
 302                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 303                 },
 304                 .platform_init = bcm4780_init,
 305         },
 306         /* Buffalo */
 307         [WHR_G54S] = {
 308                 .name           = "Buffalo WHR-G54S",
 309                 .buttons        = {
 310                         { .name = "reset",      .gpio = 1 << 4 },
 311                         { .name = "bridge",     .gpio = 1 << 5 },
 312                         { .name = "ses",        .gpio = 1 << 0 },
 313                 },
 314                 .leds           = {
 315                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 316                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 317                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 318                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 319                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 320                 },
 321         },
 322         [WBR2_G54] = {
 323                 .name           = "Buffalo WBR2-G54",
 324                 /* FIXME: verify */
 325                 .buttons        = {
 326                         { .name = "reset",      .gpio = 1 << 7 },
 327                 },
 328                 .leds           = {
 329                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 330                 },
 331         },
 332         [WHR_HP_G54] = {
 333                 .name           = "Buffalo WHR-HP-G54",
 334                 .buttons        = {
 335                         { .name = "reset",      .gpio = 1 << 4 },
 336                         { .name = "bridge",     .gpio = 1 << 5 },
 337                         { .name = "ses",        .gpio = 1 << 0 },
 338                 },
 339                 .leds           = {
 340                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 341                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 342                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 343                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 344                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 345                 },
 346         },
 347         [WHR_G125] = {
 348                 .name           = "Buffalo WHR-G125",
 349                 .buttons        = {
 350                         { .name = "reset",      .gpio = 1 << 4 },
 351                         { .name = "bridge",     .gpio = 1 << 5 },
 352                         { .name = "ses",        .gpio = 1 << 0 },
 353                 },
 354                 .leds           = {
 355                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 356                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 357                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 358                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 359                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 360                 },
 361         },
 362         [WHR2_A54G54] = {
 363                 .name           = "Buffalo WHR2-A54G54",
 364                 .buttons        = {
 365                         { .name = "reset",      .gpio = 1 << 4 },
 366                 },
 367                 .leds           = {
 368                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 369                 },
 370         },
 371         [WLA2_G54L] = {
 372                 .name           = "Buffalo WLA2-G54L",
 373                 /* FIXME: verify */
 374                 .buttons        = {
 375                         { .name = "reset",      .gpio = 1 << 7 },
 376                 },
 377                 .leds           = {
 378                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 379                 },
 380         },
 381         [WZR_G300N] = {
 382                 .name           = "Buffalo WZR-G300N",
 383                 .buttons        = {
 384                         { .name = "reset",      .gpio = 1 << 4 },
 385                 },
 386                 .leds           = {
 387                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 388                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 389                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 390                 },
 391         },
 392         [WZR_RS_G54] = {
 393                 .name           = "Buffalo WZR-RS-G54",
 394                 .buttons        = {
 395                         { .name = "ses",        .gpio = 1 << 0 },
 396                         { .name = "reset",      .gpio = 1 << 4 },
 397                 },
 398                 .leds           = {
 399                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 400                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 401                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 402                 },
 403         },
 404         [WZR_RS_G54HP] = {
 405                 .name           = "Buffalo WZR-RS-G54HP",
 406                 .buttons        = {
 407                         { .name = "ses",        .gpio = 1 << 0 },
 408                         { .name = "reset",      .gpio = 1 << 4 },
 409                 },
 410                 .leds           = {
 411                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 412                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 413                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 414                 },
 415         },
 416         [BUFFALO_UNKNOWN] = {
 417                 .name           = "Buffalo (unknown)",
 418                 .buttons        = {
 419                         { .name = "reset",      .gpio = 1 << 7 },
 420                 },
 421                 .leds           = {
 422                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 423                 },
 424         },
 425         [BUFFALO_UNKNOWN_4710] = {
 426                 .name           = "Buffalo (unknown, BCM4710)",
 427                 .buttons        = {
 428                         { .name = "reset",      .gpio = 1 << 4 },
 429                 },
 430                 .leds           = {
 431                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 432                 },
 433         },
 434         /* Siemens */
 435         [SE505V1] = {
 436                 .name           = "Siemens SE505 V1",
 437                 .buttons        = {
 438                         /* No usable buttons */
 439                 },
 440                 .leds           = {
 441                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 442                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 443                 },
 444         },
 445         [SE505V2] = {
 446                 .name           = "Siemens SE505 V2",
 447                 .buttons        = {
 448                         /* No usable buttons */
 449                 },
 450                 .leds           = {
 451                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 452                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 453                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 454                 },
 455         },
 456         /* US Robotics */
 457         [USR5461] = {
 458                 .name           = "U.S. Robotics USR5461",
 459                 .buttons        = {
 460                         /* No usable buttons */
 461                 },
 462                 .leds           = {
 463                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 464                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 465                 },
 466         },
 467         /* Dell */
 468         [TM2300] = {
 469                 .name           = "Dell TrueMobile 2300",
 470                 .buttons        = {
 471                         { .name = "reset",      .gpio = 1 << 0 },
 472                 },
 473                 .leds           = {
 474                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 475                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 476                 },
 477         },
 478         /* Motorola */
 479         [WE800G] = {
 480                 .name           = "Motorola WE800G",
 481                 .buttons        = {
 482                         { .name = "reset",      .gpio = 1 << 0 },
 483                 },
 484                 .leds           = {
 485                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 486                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 487                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 488                 },
 489         },
 490         [WR850GV1] = {
 491                 .name           = "Motorola WR850G V1",
 492                 .buttons        = {
 493                         { .name = "reset",      .gpio = 1 << 0 },
 494                 },
 495                 .leds           = {
 496                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 497                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 498                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 499                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 500                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 501                 },
 502         },
 503         [WR850GV2V3] = {
 504                 .name           = "Motorola WR850G V2/V3",
 505                 .buttons        = {
 506                         { .name = "reset",      .gpio = 1 << 5 },
 507                 },
 508                 .leds           = {
 509                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 510                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 511                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 512                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 513                 },
 514         },
 515         [WR850GP] = {
 516                 .name           = "Motorola WR850GP",
 517                 .buttons        = {
 518                         { .name = "reset",      .gpio = 1 << 5 },
 519                 },
 520                 .leds           = {
 521                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 522                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 523                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 524                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 525                 },
 526         },
 527
 528         /* Belkin */
 529         [BELKIN_UNKNOWN] = {
 530                 .name           = "Belkin (unknown)",
 531                 /* FIXME: verify & add detection */
 532                 .buttons        = {
 533                         { .name = "reset",      .gpio = 1 << 7 },
 534                 },
 535                 .leds           = {
 536                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 537                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 538                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 539                 },
 540         },
 541         /* Netgear */
 542         [WGT634U] = {
 543                 .name           = "Netgear WGT634U",
 544                 .buttons        = {
 545                         { .name = "reset",      .gpio = 1 << 2 },
 546                 },
 547                 .leds           = {
 548                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 549                 },
 550         },
 551         /* Trendware */
 552         [TEW411BRPP] = {
 553                 .name           = "Trendware TEW411BRP+",
 554                 .buttons        = {
 555                         { /* No usable buttons */ },
 556                 },
 557                 .leds           = {
 558                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 559                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 560                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 561                 },
 562         },
 563         /* SimpleTech */
 564         [STI_NAS] = {
 565                 .name      = "SimpleTech SimpleShare NAS",
 566                 .buttons        = {
 567                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 568                         { .name = "power",      .gpio = 1 << 0 }, // on back
 569                 },
 570                 .leds      = {
 571                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 572                 },
 573                 .platform_init = bcm4780_init,
 574         },
 575         /* D-Link */
 576         [DIR130] = {
 577                 .name     = "D-Link DIR-130",
 578                 .buttons        = {
 579                         { .name = "reset",      .gpio = 1 << 3},
 580                         { .name = "reserved",   .gpio = 1 << 7},
 581                 },
 582                 .leds      = {
 583                         { .name = "diag",       .gpio = 1 << 0},
 584                         { .name = "blue",       .gpio = 1 << 6},
 585                 },
 586         },
 587         [DIR330] = {
 588                 .name     = "D-Link DIR-330",
 589                 .buttons        = {
 590                         { .name = "reset",      .gpio = 1 << 3},
 591                         { .name = "reserved",   .gpio = 1 << 7},
 592                 },
 593                 .leds      = {
 594                         { .name = "diag",       .gpio = 1 << 0},
 595                         { .name = "usb",        .gpio = 1 << 4},
 596                         { .name = "blue",       .gpio = 1 << 6},
 597                 },
 598         },
 599         [DWL3150] = {
 600                 .name   = "D-Link DWL-3150",
 601                 .buttons        = {
 602                         { .name = "reset",      .gpio = 1 << 7},
 603                 },
 604                 .leds     = {
 605                         { .name = "diag",       .gpio = 1 << 2},
 606                         { .name = "status",     .gpio = 1 << 1},
 607                 },
 608         },
 609 };
 610
 611 static struct platform_t __init *platform_detect(void)
 612 {
 613         char *boardnum, *boardtype, *buf;
 614
 615         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 616                 return &platforms[WGT634U];
 617
 618         /* Look for a model identifier */
 619
 620         /* Based on "model_name" */
 621         if (buf = nvram_get("model_name")) {
 622                 if (!strcmp(buf, "DIR-130"))
 623                         return &platforms[DIR130];
 624                 if (!strcmp(buf, "DIR-330"))
 625                         return &platforms[DIR330];
 626         }
 627
 628         /* Based on "model_no" */
 629         if (buf = nvram_get("model_no")) {
 630                 if (!strncmp(buf,"WL700", 5)) /* WL700* */
 631                         return &platforms[WL700GE];
 632         }
 633
 634         /* Based on "ModelId" */
 635         if (buf = nvram_get("ModelId")) {
 636                 if (!strcmp(buf, "WR850GP"))
 637                         return &platforms[WR850GP];
 638                 if (!strcmp(buf,"WX-5565"))
 639                         return &platforms[TM2300];
 640                 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
 641                         return &platforms[WE800G];
 642         }
 643
 644         /* Buffalo */
 645         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 646                 /* Buffalo hardware, check id for specific hardware matches */
 647                 if (!strcmp(buf, "29bb0332"))
 648                         return &platforms[WBR2_G54];
 649                 if (!strcmp(buf, "29129"))
 650                         return &platforms[WLA2_G54L];
 651                 if (!strcmp(buf, "30189"))
 652                         return &platforms[WHR_HP_G54];
 653                 if (!strcmp(buf, "32093"))
 654                         return &platforms[WHR_G125];
 655                 if (!strcmp(buf, "30182"))
 656                         return &platforms[WHR_G54S];
 657                 if (!strcmp(buf, "290441dd"))
 658                         return &platforms[WHR2_A54G54];
 659                 if (!strcmp(buf, "31120"))
 660                         return &platforms[WZR_G300N];
 661                 if (!strcmp(buf, "30083"))
 662                         return &platforms[WZR_RS_G54];
 663                 if (!strcmp(buf, "30103"))
 664                         return &platforms[WZR_RS_G54HP];
 665         }
 666
 667         /* no easy model number, attempt to guess */
 668         boardnum = getvar("boardnum");
 669         boardtype = getvar("boardtype");
 670
 671         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 672                 /* CFE based - newer hardware */
 673                 if (!strcmp(boardnum, "42")) { /* Linksys */
 674                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 675                                 return &platforms[WRT350N];
 676
 677                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 678                                 return &platforms[WRT54G3G];
 679
 680                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 681                                 return &platforms[WRTSL54GS];
 682
 683                         /* default to WRT54G */
 684                         return &platforms[WRT54G];
 685                 }
 686
 687                 if (!strcmp(boardnum, "45")) { /* ASUS */
 688                         if (!strcmp(boardtype,"0x042f"))
 689                                 return &platforms[WL500GP];
 690                         else if (!strcmp(boardtype,"0x0472"))
 691                                 return &platforms[WL500W];
 692                         else
 693                                 return &platforms[WL500GD];
 694                 }
 695
 696                 if (!strcmp(boardnum, "10496"))
 697                         return &platforms[USR5461];
 698
 699         } else { /* PMON based - old stuff */
 700                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 701                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 702                         return &platforms[WR850GV1];
 703                 }
 704                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 705                         if (!strcmp(boardnum, "42"))
 706                                 return &platforms[WRT54GV1];
 707                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 708                                 return &platforms[WAP54GV1];
 709                 }
 710                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 711                         return &platforms[WL500G];
 712                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 713                         /* Either WL-300g or WL-HDD, do more extensive checks */
 714                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 715                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 716                                 return &platforms[WLHDD];
 717                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 718                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 719                                 return &platforms[WL300G];
 720                 }
 721
 722                 /* unknown asus stuff, probably bcm4702 */
 723                 if (!strncmp(boardnum, "asusX", 5))
 724                         return &platforms[ASUS_4702];
 725         }
 726
 727         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 728                 if (!strncmp(boardtype, "bcm94710ap", 10))
 729                         return &platforms[BUFFALO_UNKNOWN_4710];
 730                 else
 731                         return &platforms[BUFFALO_UNKNOWN];
 732         }
 733
 734         if (!strncmp(getvar("CFEver"), "MotoWRv2", 8) ||
 735                 !strncmp(getvar("CFEver"), "MotoWRv3", 8) ||
 736                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 737
 738                 return &platforms[WR850GV2V3];
 739         }
 740
 741         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 742                 return &platforms[TEW411BRPP];
 743         }
 744
 745         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 746                 return &platforms[STI_NAS];
 747
 748         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 749                 return &platforms[DWL3150];
 750
 751         /* not found */
 752         return NULL;
 753 }
 754
 755 static void register_buttons(struct button_t *b)
 756 {
 757         for (; b->name; b++)
 758                 platform.button_mask |= b->gpio;
 759
 760         platform.button_mask &= ~gpiomask;
 761
 762         gpio_outen(platform.button_mask, 0);
 763         gpio_control(platform.button_mask, 0);
 764         platform.button_polarity = gpio_in() & platform.button_mask;
 765         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 766         gpio_intmask(platform.button_mask, platform.button_mask);
 767
 768         gpio_set_irqenable(1, button_handler);
 769 }
 770
 771 static void unregister_buttons(struct button_t *b)
 772 {
 773         gpio_intmask(platform.button_mask, 0);
 774
 775         gpio_set_irqenable(0, button_handler);
 776 }
 777
 778
 779 #ifndef LINUX_2_4
 780 static void add_msg(struct event_t *event, char *msg, int argv)
 781 {
 782         char *s;
 783
 784         if (argv)
 785                 return;
 786
 787         s = skb_put(event->skb, strlen(msg) + 1);
 788         strcpy(s, msg);
 789 }
 790
 791 static void hotplug_button(struct work_struct *work)
 792 {
 793         struct event_t *event = container_of(work, struct event_t, wq);
 794         char *s;
 795
 796         if (!uevent_sock)
 797                 return;
 798
 799         event->skb = alloc_skb(2048, GFP_KERNEL);
 800
 801         s = skb_put(event->skb, strlen(event->action) + 2);
 802         sprintf(s, "%s@", event->action);
 803         fill_event(event);
 804
 805         NETLINK_CB(event->skb).dst_group = 1;
 806         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 807
 808         kfree(event);
 809 }
 810
 811 #else /* !LINUX_2_4 */
 812 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 813 {
 814         char *p;
 815
 816         p = kmalloc(size, gfp);
 817         if (p == NULL)
 818                 return NULL;
 819
 820         memset(p, 0, size);
 821
 822         return p;
 823 }
 824
 825 static void add_msg(struct event_t *event, char *msg, int argv)
 826 {
 827         if (argv)
 828                 event->argv[event->anr++] = event->scratch;
 829         else
 830                 event->envp[event->enr++] = event->scratch;
 831
 832         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 833 }
 834
 835 static void hotplug_button(struct event_t *event)
 836 {
 837         char *scratch = kzalloc(256, GFP_KERNEL);
 838         event->scratch = scratch;
 839
 840         add_msg(event, hotplug_path, 1);
 841         add_msg(event, "button", 1);
 842         fill_event(event);
 843         call_usermodehelper (event->argv[0], event->argv, event->envp);
 844         kfree(scratch);
 845         kfree(event);
 846 }
 847 #endif /* !LINUX_2_4 */
 848
 849 static int fill_event (struct event_t *event)
 850 {
 851         static char buf[128];
 852
 853         add_msg(event, "HOME=/", 0);
 854         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 855         add_msg(event, "SUBSYSTEM=button", 0);
 856         snprintf(buf, 128, "ACTION=%s", event->action);
 857         add_msg(event, buf, 0);
 858         snprintf(buf, 128, "BUTTON=%s", event->name);
 859         add_msg(event, buf, 0);
 860         snprintf(buf, 128, "SEEN=%ld", event->seen);
 861         add_msg(event, buf, 0);
 862 #ifndef LINUX_2_4
 863         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 864         add_msg(event, buf, 0);
 865 #endif
 866
 867         return 0;
 868 }
 869
 870
 871 #ifndef LINUX_2_4
 872 static irqreturn_t button_handler(int irq, void *dev_id)
 873 #else
 874 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 875 #endif
 876 {
 877         struct button_t *b;
 878         u32 in, changed;
 879
 880         in = gpio_in() & platform.button_mask;
 881         gpio_intpolarity(platform.button_mask, in);
 882         changed = platform.button_polarity ^ in;
 883         platform.button_polarity = in;
 884
 885         changed &= ~gpio_outen(0, 0);
 886
 887         for (b = platform.buttons; b->name; b++) {
 888                 struct event_t *event;
 889
 890                 if (!(b->gpio & changed)) continue;
 891
 892                 b->pressed ^= 1;
 893
 894                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 895                         event->seen = (jiffies - b->seen)/HZ;
 896                         event->name = b->name;
 897                         event->action = b->pressed ? "pressed" : "released";
 898 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 899                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 900 #else
 901                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 902 #endif
 903                         schedule_work(&event->wq);
 904                 }
 905
 906                 b->seen = jiffies;
 907         }
 908         return IRQ_HANDLED;
 909 }
 910
 911 static void register_leds(struct led_t *l)
 912 {
 913         struct proc_dir_entry *p;
 914         u32 mask = 0;
 915         u32 oe_mask = 0;
 916         u32 val = 0;
 917
 918         leds = proc_mkdir("led", diag);
 919         if (!leds)
 920                 return;
 921
 922         for(; l->name; l++) {
 923                 if (l->gpio & gpiomask)
 924                         continue;
 925
 926                 if (l->gpio & GPIO_TYPE_EXTIF) {
 927                         l->state = 0;
 928                         set_led_extif(l);
 929                 } else {
 930                         if (l->polarity != INPUT) oe_mask != l->gpio;
 931                         mask |= l->gpio;
 932                         val |= (l->polarity == NORMAL)?0:l->gpio;
 933                 }
 934
 935                 if (l->polarity == INPUT) continue;
 936
 937                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 938                         l->proc.type = PROC_LED;
 939                         l->proc.ptr = l;
 940                         p->data = (void *) &l->proc;
 941                         p->proc_fops = &diag_proc_fops;
 942                 }
 943         }
 944
 945         gpio_outen(mask, oe_mask);
 946         gpio_control(mask, 0);
 947         gpio_out(mask, val);
 948 }
 949
 950 static void unregister_leds(struct led_t *l)
 951 {
 952         for(; l->name; l++)
 953                 remove_proc_entry(l->name, leds);
 954
 955         remove_proc_entry("led", diag);
 956 }
 957
 958 static void set_led_extif(struct led_t *led)
 959 {
 960         gpio_set_extif(led->gpio, led->state);
 961 }
 962
 963 static void led_flash(unsigned long dummy) {
 964         struct led_t *l;
 965         u32 mask = 0;
 966         u8 extif_blink = 0;
 967
 968         for (l = platform.leds; l->name; l++) {
 969                 if (l->flash) {
 970                         if (l->gpio & GPIO_TYPE_EXTIF) {
 971                                 extif_blink = 1;
 972                                 l->state = !l->state;
 973                                 set_led_extif(l);
 974                         } else {
 975                                 mask |= l->gpio;
 976                         }
 977                 }
 978         }
 979
 980         mask &= ~gpiomask;
 981         if (mask) {
 982                 u32 val = ~gpio_in();
 983
 984                 gpio_outen(mask, mask);
 985                 gpio_control(mask, 0);
 986                 gpio_out(mask, val);
 987         }
 988         if (mask || extif_blink) {
 989                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 990         }
 991 }
 992
 993 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 994 {
 995 #ifdef LINUX_2_4
 996         struct inode *inode = file->f_dentry->d_inode;
 997         struct proc_dir_entry *dent = inode->u.generic_ip;
 998 #else
 999         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1000 #endif
1001         char *page;
1002         int len = 0;
1003
1004         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1005                 return -ENOBUFS;
1006
1007         if (dent->data != NULL) {
1008                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1009                 switch (handler->type) {
1010                         case PROC_LED: {
1011                                 struct led_t * led = (struct led_t *) handler->ptr;
1012                                 if (led->flash) {
1013                                         len = sprintf(page, "f\n");
1014                                 } else {
1015                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1016                                                 len = sprintf(page, "%d\n", led->state);
1017                                         } else {
1018                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1019                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1020                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1021                                         }
1022                                 }
1023                                 break;
1024                         }
1025                         case PROC_MODEL:
1026                                 len = sprintf(page, "%s\n", platform.name);
1027                                 break;
1028                         case PROC_GPIOMASK:
1029                                 len = sprintf(page, "0x%04x\n", gpiomask);
1030                                 break;
1031                 }
1032         }
1033         len += 1;
1034
1035         if (*ppos < len) {
1036                 len = min_t(int, len - *ppos, count);
1037                 if (copy_to_user(buf, (page + *ppos), len)) {
1038                         kfree(page);
1039                         return -EFAULT;
1040                 }
1041                 *ppos += len;
1042         } else {
1043                 len = 0;
1044         }
1045
1046         kfree(page);
1047         return len;
1048 }
1049
1050
1051 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1052 {
1053 #ifdef LINUX_2_4
1054         struct inode *inode = file->f_dentry->d_inode;
1055         struct proc_dir_entry *dent = inode->u.generic_ip;
1056 #else
1057         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1058 #endif
1059         char *page;
1060         int ret = -EINVAL;
1061
1062         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1063                 return -ENOBUFS;
1064
1065         if (copy_from_user(page, buf, count)) {
1066                 kfree(page);
1067                 return -EINVAL;
1068         }
1069         page[count] = 0;
1070
1071         if (dent->data != NULL) {
1072                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1073                 switch (handler->type) {
1074                         case PROC_LED: {
1075                                 struct led_t *led = (struct led_t *) handler->ptr;
1076                                 int p = (led->polarity == NORMAL ? 0 : 1);
1077
1078                                 if (page[0] == 'f') {
1079                                         led->flash = 1;
1080                                         led_flash(0);
1081                                 } else {
1082                                         led->flash = 0;
1083                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1084                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1085                                                 set_led_extif(led);
1086                                         } else {
1087                                                 gpio_outen(led->gpio, led->gpio);
1088                                                 gpio_control(led->gpio, 0);
1089                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1090                                         }
1091                                 }
1092                                 break;
1093                         }
1094                         case PROC_GPIOMASK:
1095                                 gpiomask = simple_strtoul(page, NULL, 0);
1096
1097                                 if (platform.buttons) {
1098                                         unregister_buttons(platform.buttons);
1099                                         register_buttons(platform.buttons);
1100                                 }
1101
1102                                 if (platform.leds) {
1103                                         unregister_leds(platform.leds);
1104                                         register_leds(platform.leds);
1105                                 }
1106                                 break;
1107                 }
1108                 ret = count;
1109         }
1110
1111         kfree(page);
1112         return ret;
1113 }
1114
1115 static int __init diag_init(void)
1116 {
1117         static struct proc_dir_entry *p;
1118         static struct platform_t *detected;
1119
1120         detected = platform_detect();
1121         if (!detected) {
1122                 printk(MODULE_NAME ": Router model not detected.\n");
1123                 return -ENODEV;
1124         }
1125         memcpy(&platform, detected, sizeof(struct platform_t));
1126
1127         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1128         if (platform.platform_init != NULL) {
1129                 platform.platform_init();
1130         }
1131
1132         if (!(diag = proc_mkdir("diag", NULL))) {
1133                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1134                 return -EINVAL;
1135         }
1136
1137         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1138                 p->data = (void *) &proc_model;
1139                 p->proc_fops = &diag_proc_fops;
1140         }
1141
1142         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1143                 p->data = (void *) &proc_gpiomask;
1144                 p->proc_fops = &diag_proc_fops;
1145         }
1146
1147         if (platform.buttons)
1148                 register_buttons(platform.buttons);
1149
1150         if (platform.leds)
1151                 register_leds(platform.leds);
1152
1153         return 0;
1154 }
1155
1156 static void __exit diag_exit(void)
1157 {
1158         del_timer(&led_timer);
1159
1160         if (platform.buttons)
1161                 unregister_buttons(platform.buttons);
1162
1163         if (platform.leds)
1164                 unregister_leds(platform.leds);
1165
1166         remove_proc_entry("model", diag);
1167         remove_proc_entry("gpiomask", diag);
1168         remove_proc_entry("diag", NULL);
1169 }
1170
1171 module_init(diag_init);
1172 module_exit(diag_exit);
1173
1174 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1175 MODULE_LICENSE("GPL");