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         /* Sitecom */
 120         WL105B,
 121 };
 122
 123 static void __init bcm4780_init(void) {
 124                 int pin = 1 << 3;
 125
 126                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 127                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 128                 gpio_outen(pin, pin);
 129                 gpio_control(pin, 0);
 130                 gpio_out(pin, pin);
 131
 132                 /* Wait 5s, so the HDD can spin up */
 133                 set_current_state(TASK_INTERRUPTIBLE);
 134                 schedule_timeout(HZ * 5);
 135 }
 136
 137 static void __init bcm57xx_init(void) {
 138         int pin = 1 << 2;
 139
 140         gpio_outen(pin, pin);
 141         gpio_control(pin, 0);
 142         gpio_out(pin, pin);
 143 }
 144
 145 static struct platform_t __initdata platforms[] = {
 146         /* Linksys */
 147         [WAP54GV1] = {
 148                 .name           = "Linksys WAP54G V1",
 149                 .buttons        = {
 150                         { .name = "reset",      .gpio = 1 << 0 },
 151                 },
 152                 .leds           = {
 153                         { .name = "diag",       .gpio = 1 << 3 },
 154                         { .name = "wlan",       .gpio = 1 << 4 },
 155                 },
 156         },
 157         [WAP54GV3] = {
 158                 .name           = "Linksys WAP54G V3",
 159                 .buttons        = {
 160                         /* FIXME: verify this */
 161                         { .name = "reset",      .gpio = 1 << 7 },
 162                         { .name = "ses",        .gpio = 1 << 0 },
 163                 },
 164                 .leds           = {
 165                         /* FIXME: diag? */
 166                         { .name = "ses",        .gpio = 1 << 1 },
 167                 },
 168         },
 169         [WRT54GV1] = {
 170                 .name           = "Linksys WRT54G V1.x",
 171                 .buttons        = {
 172                         { .name = "reset",      .gpio = 1 << 6 },
 173                 },
 174                 .leds           = {
 175                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 176                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 177                 },
 178         },
 179         [WRT54G] = {
 180                 .name           = "Linksys WRT54G/GS/GL",
 181                 .buttons        = {
 182                         { .name = "reset",      .gpio = 1 << 6 },
 183                         { .name = "ses",        .gpio = 1 << 4 },
 184                 },
 185                 .leds           = {
 186                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 187                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 188                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 189                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 190                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 191                 },
 192         },
 193         [WRTSL54GS] = {
 194                 .name           = "Linksys WRTSL54GS",
 195                 .buttons        = {
 196                         { .name = "reset",      .gpio = 1 << 6 },
 197                         { .name = "ses",        .gpio = 1 << 4 },
 198                 },
 199                 .leds           = {
 200                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 201                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 202                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 203                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 204                 },
 205         },
 206         [WRT54G3G] = {
 207                 .name           = "Linksys WRT54G3G",
 208                 .buttons        = {
 209                         { .name = "reset",      .gpio = 1 << 6 },
 210                         { .name = "3g",         .gpio = 1 << 4 },
 211                 },
 212                 .leds           = {
 213                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 214                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 215                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 216                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 217                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 218                 },
 219         },
 220         [WRT350N] = {
 221                 .name           = "Linksys WRT350N",
 222                 .buttons        = {
 223                         { .name = "reset",      .gpio = 1 << 6 },
 224                         { .name = "ses",        .gpio = 1 << 8 },
 225                 },
 226                 .leds           = {
 227                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 228                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 229                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 230                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 231                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 232                 },
 233                 .platform_init = bcm57xx_init,
 234         },
 235         /* Asus */
 236         [WLHDD] = {
 237                 .name           = "ASUS WL-HDD",
 238                 .buttons        = {
 239                         { .name = "reset",      .gpio = 1 << 6 },
 240                 },
 241                 .leds           = {
 242                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 243                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 244                 },
 245         },
 246         [WL300G] = {
 247                 .name           = "ASUS WL-300g",
 248                 .buttons        = {
 249                         { .name = "reset",      .gpio = 1 << 6 },
 250                 },
 251                 .leds           = {
 252                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 253                 },
 254         },
 255         [WL500G] = {
 256                 .name           = "ASUS WL-500g",
 257                 .buttons        = {
 258                         { .name = "reset",      .gpio = 1 << 6 },
 259                 },
 260                 .leds           = {
 261                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 262                 },
 263         },
 264         [WL500GD] = {
 265                 .name           = "ASUS WL-500g Deluxe",
 266                 .buttons        = {
 267                         { .name = "reset",      .gpio = 1 << 6 },
 268                 },
 269                 .leds           = {
 270                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 271                 },
 272         },
 273         [WL500GP] = {
 274                 .name           = "ASUS WL-500g Premium",
 275                 .buttons        = {
 276                         { .name = "reset",      .gpio = 1 << 0 },
 277                         { .name = "ses",        .gpio = 1 << 4 },
 278                 },
 279                 .leds           = {
 280                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 281                 },
 282         },
 283         [WL500W] = {
 284                 .name           = "ASUS WL-500W",
 285                 .buttons        = {
 286                         { .name = "reset",      .gpio = 1 << 6 },
 287                         { .name = "ses",        .gpio = 1 << 7 },
 288                 },
 289                 .leds           = {
 290                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 291                 },
 292         },
 293         [ASUS_4702] = {
 294                 .name           = "ASUS (unknown, BCM4702)",
 295                 .buttons        = {
 296                         { .name = "reset",      .gpio = 1 << 6 },
 297                 },
 298                 .leds           = {
 299                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 300                 },
 301         },
 302         [WL700GE] = {
 303                 .name           = "ASUS WL-700gE",
 304                 .buttons        = {
 305                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 306                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 307                         { .name = "power",      .gpio = 1 << 0 }, // on front
 308                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 309                 },
 310                 .leds           = {
 311 #if 0
 312                         // GPIO that controls power led also enables/disables some essential functions
 313                         // - power to HDD
 314                         // - switch leds
 315                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 316 #endif
 317                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 318                 },
 319                 .platform_init = bcm4780_init,
 320         },
 321         /* Buffalo */
 322         [WHR_G54S] = {
 323                 .name           = "Buffalo WHR-G54S",
 324                 .buttons        = {
 325                         { .name = "reset",      .gpio = 1 << 4 },
 326                         { .name = "bridge",     .gpio = 1 << 5 },
 327                         { .name = "ses",        .gpio = 1 << 0 },
 328                 },
 329                 .leds           = {
 330                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 331                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 332                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 333                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 334                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 335                 },
 336         },
 337         [WBR2_G54] = {
 338                 .name           = "Buffalo WBR2-G54",
 339                 /* FIXME: verify */
 340                 .buttons        = {
 341                         { .name = "reset",      .gpio = 1 << 7 },
 342                 },
 343                 .leds           = {
 344                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 345                 },
 346         },
 347         [WHR_HP_G54] = {
 348                 .name           = "Buffalo WHR-HP-G54",
 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         [WHR_G125] = {
 363                 .name           = "Buffalo WHR-G125",
 364                 .buttons        = {
 365                         { .name = "reset",      .gpio = 1 << 4 },
 366                         { .name = "bridge",     .gpio = 1 << 5 },
 367                         { .name = "ses",        .gpio = 1 << 0 },
 368                 },
 369                 .leds           = {
 370                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 371                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 372                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 373                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 374                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 375                 },
 376         },
 377         [WHR2_A54G54] = {
 378                 .name           = "Buffalo WHR2-A54G54",
 379                 .buttons        = {
 380                         { .name = "reset",      .gpio = 1 << 4 },
 381                 },
 382                 .leds           = {
 383                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 384                 },
 385         },
 386         [WLA2_G54L] = {
 387                 .name           = "Buffalo WLA2-G54L",
 388                 /* FIXME: verify */
 389                 .buttons        = {
 390                         { .name = "reset",      .gpio = 1 << 7 },
 391                 },
 392                 .leds           = {
 393                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 394                 },
 395         },
 396         [WZR_G300N] = {
 397                 .name           = "Buffalo WZR-G300N",
 398                 .buttons        = {
 399                         { .name = "reset",      .gpio = 1 << 4 },
 400                 },
 401                 .leds           = {
 402                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 403                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 404                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 405                 },
 406         },
 407         [WZR_RS_G54] = {
 408                 .name           = "Buffalo WZR-RS-G54",
 409                 .buttons        = {
 410                         { .name = "ses",        .gpio = 1 << 0 },
 411                         { .name = "reset",      .gpio = 1 << 4 },
 412                 },
 413                 .leds           = {
 414                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 415                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 416                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 417                 },
 418         },
 419         [WZR_RS_G54HP] = {
 420                 .name           = "Buffalo WZR-RS-G54HP",
 421                 .buttons        = {
 422                         { .name = "ses",        .gpio = 1 << 0 },
 423                         { .name = "reset",      .gpio = 1 << 4 },
 424                 },
 425                 .leds           = {
 426                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 427                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 428                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 429                 },
 430         },
 431         [BUFFALO_UNKNOWN] = {
 432                 .name           = "Buffalo (unknown)",
 433                 .buttons        = {
 434                         { .name = "reset",      .gpio = 1 << 7 },
 435                 },
 436                 .leds           = {
 437                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 438                 },
 439         },
 440         [BUFFALO_UNKNOWN_4710] = {
 441                 .name           = "Buffalo (unknown, BCM4710)",
 442                 .buttons        = {
 443                         { .name = "reset",      .gpio = 1 << 4 },
 444                 },
 445                 .leds           = {
 446                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 447                 },
 448         },
 449         /* Siemens */
 450         [SE505V1] = {
 451                 .name           = "Siemens SE505 V1",
 452                 .buttons        = {
 453                         /* No usable buttons */
 454                 },
 455                 .leds           = {
 456                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 457                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 458                 },
 459         },
 460         [SE505V2] = {
 461                 .name           = "Siemens SE505 V2",
 462                 .buttons        = {
 463                         /* No usable buttons */
 464                 },
 465                 .leds           = {
 466                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 467                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 468                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 469                 },
 470         },
 471         /* US Robotics */
 472         [USR5461] = {
 473                 .name           = "U.S. Robotics USR5461",
 474                 .buttons        = {
 475                         /* No usable buttons */
 476                 },
 477                 .leds           = {
 478                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 479                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 480                 },
 481         },
 482         /* Dell */
 483         [TM2300] = {
 484                 .name           = "Dell TrueMobile 2300",
 485                 .buttons        = {
 486                         { .name = "reset",      .gpio = 1 << 0 },
 487                 },
 488                 .leds           = {
 489                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 490                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 491                 },
 492         },
 493         /* Motorola */
 494         [WE800G] = {
 495                 .name           = "Motorola WE800G",
 496                 .buttons        = {
 497                         { .name = "reset",      .gpio = 1 << 0 },
 498                 },
 499                 .leds           = {
 500                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 501                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 502                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 503                 },
 504         },
 505         [WR850GV1] = {
 506                 .name           = "Motorola WR850G V1",
 507                 .buttons        = {
 508                         { .name = "reset",      .gpio = 1 << 0 },
 509                 },
 510                 .leds           = {
 511                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 512                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 513                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 514                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 515                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 516                 },
 517         },
 518         [WR850GV2V3] = {
 519                 .name           = "Motorola WR850G V2/V3",
 520                 .buttons        = {
 521                         { .name = "reset",      .gpio = 1 << 5 },
 522                 },
 523                 .leds           = {
 524                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 525                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 526                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 527                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 528                 },
 529         },
 530         [WR850GP] = {
 531                 .name           = "Motorola WR850GP",
 532                 .buttons        = {
 533                         { .name = "reset",      .gpio = 1 << 5 },
 534                 },
 535                 .leds           = {
 536                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 537                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 538                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 539                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 540                 },
 541         },
 542
 543         /* Belkin */
 544         [BELKIN_UNKNOWN] = {
 545                 .name           = "Belkin (unknown)",
 546                 /* FIXME: verify & add detection */
 547                 .buttons        = {
 548                         { .name = "reset",      .gpio = 1 << 7 },
 549                 },
 550                 .leds           = {
 551                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 552                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 553                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 554                 },
 555         },
 556         /* Netgear */
 557         [WGT634U] = {
 558                 .name           = "Netgear WGT634U",
 559                 .buttons        = {
 560                         { .name = "reset",      .gpio = 1 << 2 },
 561                 },
 562                 .leds           = {
 563                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 564                 },
 565         },
 566         /* Trendware */
 567         [TEW411BRPP] = {
 568                 .name           = "Trendware TEW411BRP+",
 569                 .buttons        = {
 570                         { /* No usable buttons */ },
 571                 },
 572                 .leds           = {
 573                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 574                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 575                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 576                 },
 577         },
 578         /* SimpleTech */
 579         [STI_NAS] = {
 580                 .name      = "SimpleTech SimpleShare NAS",
 581                 .buttons        = {
 582                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 583                         { .name = "power",      .gpio = 1 << 0 }, // on back
 584                 },
 585                 .leds      = {
 586                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 587                 },
 588                 .platform_init = bcm4780_init,
 589         },
 590         /* D-Link */
 591         [DIR130] = {
 592                 .name     = "D-Link DIR-130",
 593                 .buttons        = {
 594                         { .name = "reset",      .gpio = 1 << 3},
 595                         { .name = "reserved",   .gpio = 1 << 7},
 596                 },
 597                 .leds      = {
 598                         { .name = "diag",       .gpio = 1 << 0},
 599                         { .name = "blue",       .gpio = 1 << 6},
 600                 },
 601         },
 602         [DIR330] = {
 603                 .name     = "D-Link DIR-330",
 604                 .buttons        = {
 605                         { .name = "reset",      .gpio = 1 << 3},
 606                         { .name = "reserved",   .gpio = 1 << 7},
 607                 },
 608                 .leds      = {
 609                         { .name = "diag",       .gpio = 1 << 0},
 610                         { .name = "usb",        .gpio = 1 << 4},
 611                         { .name = "blue",       .gpio = 1 << 6},
 612                 },
 613         },
 614         [DWL3150] = {
 615                 .name   = "D-Link DWL-3150",
 616                 .buttons        = {
 617                         { .name = "reset",      .gpio = 1 << 7},
 618                 },
 619                 .leds     = {
 620                         { .name = "diag",       .gpio = 1 << 2},
 621                         { .name = "status",     .gpio = 1 << 1},
 622                 },
 623         },
 624         /* Double check */
 625         [WL105B] = {
 626                 .name   = "Sitecom WL-105b",
 627                 .buttons        = {
 628                         { .name = "reset",      .gpio = 1 << 10},
 629                 },
 630                 .leds     = {
 631                         { .name = "wlan",       .gpio = 1 << 4},
 632                         { .name = "power",      .gpio = 1 << 3},
 633                 },
 634         },
 635 };
 636
 637 static struct platform_t __init *platform_detect(void)
 638 {
 639         char *boardnum, *boardtype, *buf;
 640
 641         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 642                 return &platforms[WGT634U];
 643
 644         /* Look for a model identifier */
 645
 646         /* Based on "model_name" */
 647         if (buf = nvram_get("model_name")) {
 648                 if (!strcmp(buf, "DIR-130"))
 649                         return &platforms[DIR130];
 650                 if (!strcmp(buf, "DIR-330"))
 651                         return &platforms[DIR330];
 652         }
 653
 654         /* Based on "model_no" */
 655         if (buf = nvram_get("model_no")) {
 656                 if (!strncmp(buf,"WL700", 5)) /* WL700* */
 657                         return &platforms[WL700GE];
 658         }
 659
 660         /* Based on "ModelId" */
 661         if (buf = nvram_get("ModelId")) {
 662                 if (!strcmp(buf, "WR850GP"))
 663                         return &platforms[WR850GP];
 664                 if (!strcmp(buf,"WX-5565"))
 665                         return &platforms[TM2300];
 666                 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
 667                         return &platforms[WE800G];
 668         }
 669
 670         /* Buffalo */
 671         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 672                 /* Buffalo hardware, check id for specific hardware matches */
 673                 if (!strcmp(buf, "29bb0332"))
 674                         return &platforms[WBR2_G54];
 675                 if (!strcmp(buf, "29129"))
 676                         return &platforms[WLA2_G54L];
 677                 if (!strcmp(buf, "30189"))
 678                         return &platforms[WHR_HP_G54];
 679                 if (!strcmp(buf, "32093"))
 680                         return &platforms[WHR_G125];
 681                 if (!strcmp(buf, "30182"))
 682                         return &platforms[WHR_G54S];
 683                 if (!strcmp(buf, "290441dd"))
 684                         return &platforms[WHR2_A54G54];
 685                 if (!strcmp(buf, "31120"))
 686                         return &platforms[WZR_G300N];
 687                 if (!strcmp(buf, "30083"))
 688                         return &platforms[WZR_RS_G54];
 689                 if (!strcmp(buf, "30103"))
 690                         return &platforms[WZR_RS_G54HP];
 691         }
 692
 693         /* no easy model number, attempt to guess */
 694         boardnum = getvar("boardnum");
 695         boardtype = getvar("boardtype");
 696
 697         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 698                 /* CFE based - newer hardware */
 699                 if (!strcmp(boardnum, "42")) { /* Linksys */
 700                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 701                                 return &platforms[WRT350N];
 702
 703                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 704                                 return &platforms[WRT54G3G];
 705
 706                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 707                                 return &platforms[WRTSL54GS];
 708
 709                         /* default to WRT54G */
 710                         return &platforms[WRT54G];
 711                 }
 712
 713                 if (!strcmp(boardnum, "45")) { /* ASUS */
 714                         if (!strcmp(boardtype,"0x042f"))
 715                                 return &platforms[WL500GP];
 716                         else if (!strcmp(boardtype,"0x0472"))
 717                                 return &platforms[WL500W];
 718                         else
 719                                 return &platforms[WL500GD];
 720                 }
 721
 722                 if (!strcmp(boardnum, "10496"))
 723                         return &platforms[USR5461];
 724
 725         } else { /* PMON based - old stuff */
 726                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 727                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 728                         return &platforms[WR850GV1];
 729                 }
 730                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 731                         if (!strcmp(boardnum, "42"))
 732                                 return &platforms[WRT54GV1];
 733                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 734                                 return &platforms[WAP54GV1];
 735                 }
 736                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 737                         return &platforms[WL500G];
 738                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 739                         /* Either WL-300g or WL-HDD, do more extensive checks */
 740                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 741                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 742                                 return &platforms[WLHDD];
 743                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 744                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 745                                 return &platforms[WL300G];
 746                 }
 747                 /* Sitecom WL-105b */
 748                 if (!strncmp(boardnum, "2", 1) && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 749                         return &platforms[WL105B];
 750
 751                 /* unknown asus stuff, probably bcm4702 */
 752                 if (!strncmp(boardnum, "asusX", 5))
 753                         return &platforms[ASUS_4702];
 754         }
 755
 756         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 757                 if (!strncmp(boardtype, "bcm94710ap", 10))
 758                         return &platforms[BUFFALO_UNKNOWN_4710];
 759                 else
 760                         return &platforms[BUFFALO_UNKNOWN];
 761         }
 762
 763         if (!strncmp(getvar("CFEver"), "MotoWRv2", 8) ||
 764                 !strncmp(getvar("CFEver"), "MotoWRv3", 8) ||
 765                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 766
 767                 return &platforms[WR850GV2V3];
 768         }
 769
 770         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 771                 return &platforms[TEW411BRPP];
 772         }
 773
 774         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 775                 return &platforms[STI_NAS];
 776
 777         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 778                 return &platforms[DWL3150];
 779
 780         /* not found */
 781         return NULL;
 782 }
 783
 784 static void register_buttons(struct button_t *b)
 785 {
 786         for (; b->name; b++)
 787                 platform.button_mask |= b->gpio;
 788
 789         platform.button_mask &= ~gpiomask;
 790
 791         gpio_outen(platform.button_mask, 0);
 792         gpio_control(platform.button_mask, 0);
 793         platform.button_polarity = gpio_in() & platform.button_mask;
 794         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 795         gpio_intmask(platform.button_mask, platform.button_mask);
 796
 797         gpio_set_irqenable(1, button_handler);
 798 }
 799
 800 static void unregister_buttons(struct button_t *b)
 801 {
 802         gpio_intmask(platform.button_mask, 0);
 803
 804         gpio_set_irqenable(0, button_handler);
 805 }
 806
 807
 808 #ifndef LINUX_2_4
 809 static void add_msg(struct event_t *event, char *msg, int argv)
 810 {
 811         char *s;
 812
 813         if (argv)
 814                 return;
 815
 816         s = skb_put(event->skb, strlen(msg) + 1);
 817         strcpy(s, msg);
 818 }
 819
 820 static void hotplug_button(struct work_struct *work)
 821 {
 822         struct event_t *event = container_of(work, struct event_t, wq);
 823         char *s;
 824
 825         if (!uevent_sock)
 826                 return;
 827
 828         event->skb = alloc_skb(2048, GFP_KERNEL);
 829
 830         s = skb_put(event->skb, strlen(event->action) + 2);
 831         sprintf(s, "%s@", event->action);
 832         fill_event(event);
 833
 834         NETLINK_CB(event->skb).dst_group = 1;
 835         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 836
 837         kfree(event);
 838 }
 839
 840 #else /* !LINUX_2_4 */
 841 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 842 {
 843         char *p;
 844
 845         p = kmalloc(size, gfp);
 846         if (p == NULL)
 847                 return NULL;
 848
 849         memset(p, 0, size);
 850
 851         return p;
 852 }
 853
 854 static void add_msg(struct event_t *event, char *msg, int argv)
 855 {
 856         if (argv)
 857                 event->argv[event->anr++] = event->scratch;
 858         else
 859                 event->envp[event->enr++] = event->scratch;
 860
 861         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 862 }
 863
 864 static void hotplug_button(struct event_t *event)
 865 {
 866         char *scratch = kzalloc(256, GFP_KERNEL);
 867         event->scratch = scratch;
 868
 869         add_msg(event, hotplug_path, 1);
 870         add_msg(event, "button", 1);
 871         fill_event(event);
 872         call_usermodehelper (event->argv[0], event->argv, event->envp);
 873         kfree(scratch);
 874         kfree(event);
 875 }
 876 #endif /* !LINUX_2_4 */
 877
 878 static int fill_event (struct event_t *event)
 879 {
 880         static char buf[128];
 881
 882         add_msg(event, "HOME=/", 0);
 883         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 884         add_msg(event, "SUBSYSTEM=button", 0);
 885         snprintf(buf, 128, "ACTION=%s", event->action);
 886         add_msg(event, buf, 0);
 887         snprintf(buf, 128, "BUTTON=%s", event->name);
 888         add_msg(event, buf, 0);
 889         snprintf(buf, 128, "SEEN=%ld", event->seen);
 890         add_msg(event, buf, 0);
 891 #ifndef LINUX_2_4
 892         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 893         add_msg(event, buf, 0);
 894 #endif
 895
 896         return 0;
 897 }
 898
 899
 900 #ifndef LINUX_2_4
 901 static irqreturn_t button_handler(int irq, void *dev_id)
 902 #else
 903 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 904 #endif
 905 {
 906         struct button_t *b;
 907         u32 in, changed;
 908
 909         in = gpio_in() & platform.button_mask;
 910         gpio_intpolarity(platform.button_mask, in);
 911         changed = platform.button_polarity ^ in;
 912         platform.button_polarity = in;
 913
 914         changed &= ~gpio_outen(0, 0);
 915
 916         for (b = platform.buttons; b->name; b++) {
 917                 struct event_t *event;
 918
 919                 if (!(b->gpio & changed)) continue;
 920
 921                 b->pressed ^= 1;
 922
 923                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 924                         event->seen = (jiffies - b->seen)/HZ;
 925                         event->name = b->name;
 926                         event->action = b->pressed ? "pressed" : "released";
 927 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 928                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 929 #else
 930                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 931 #endif
 932                         schedule_work(&event->wq);
 933                 }
 934
 935                 b->seen = jiffies;
 936         }
 937         return IRQ_HANDLED;
 938 }
 939
 940 static void register_leds(struct led_t *l)
 941 {
 942         struct proc_dir_entry *p;
 943         u32 mask = 0;
 944         u32 oe_mask = 0;
 945         u32 val = 0;
 946
 947         leds = proc_mkdir("led", diag);
 948         if (!leds)
 949                 return;
 950
 951         for(; l->name; l++) {
 952                 if (l->gpio & gpiomask)
 953                         continue;
 954
 955                 if (l->gpio & GPIO_TYPE_EXTIF) {
 956                         l->state = 0;
 957                         set_led_extif(l);
 958                 } else {
 959                         if (l->polarity != INPUT) oe_mask != l->gpio;
 960                         mask |= l->gpio;
 961                         val |= (l->polarity == NORMAL)?0:l->gpio;
 962                 }
 963
 964                 if (l->polarity == INPUT) continue;
 965
 966                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 967                         l->proc.type = PROC_LED;
 968                         l->proc.ptr = l;
 969                         p->data = (void *) &l->proc;
 970                         p->proc_fops = &diag_proc_fops;
 971                 }
 972         }
 973
 974         gpio_outen(mask, oe_mask);
 975         gpio_control(mask, 0);
 976         gpio_out(mask, val);
 977 }
 978
 979 static void unregister_leds(struct led_t *l)
 980 {
 981         for(; l->name; l++)
 982                 remove_proc_entry(l->name, leds);
 983
 984         remove_proc_entry("led", diag);
 985 }
 986
 987 static void set_led_extif(struct led_t *led)
 988 {
 989         gpio_set_extif(led->gpio, led->state);
 990 }
 991
 992 static void led_flash(unsigned long dummy) {
 993         struct led_t *l;
 994         u32 mask = 0;
 995         u8 extif_blink = 0;
 996
 997         for (l = platform.leds; l->name; l++) {
 998                 if (l->flash) {
 999                         if (l->gpio & GPIO_TYPE_EXTIF) {
1000                                 extif_blink = 1;
1001                                 l->state = !l->state;
1002                                 set_led_extif(l);
1003                         } else {
1004                                 mask |= l->gpio;
1005                         }
1006                 }
1007         }
1008
1009         mask &= ~gpiomask;
1010         if (mask) {
1011                 u32 val = ~gpio_in();
1012
1013                 gpio_outen(mask, mask);
1014                 gpio_control(mask, 0);
1015                 gpio_out(mask, val);
1016         }
1017         if (mask || extif_blink) {
1018                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1019         }
1020 }
1021
1022 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1023 {
1024 #ifdef LINUX_2_4
1025         struct inode *inode = file->f_dentry->d_inode;
1026         struct proc_dir_entry *dent = inode->u.generic_ip;
1027 #else
1028         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1029 #endif
1030         char *page;
1031         int len = 0;
1032
1033         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1034                 return -ENOBUFS;
1035
1036         if (dent->data != NULL) {
1037                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1038                 switch (handler->type) {
1039                         case PROC_LED: {
1040                                 struct led_t * led = (struct led_t *) handler->ptr;
1041                                 if (led->flash) {
1042                                         len = sprintf(page, "f\n");
1043                                 } else {
1044                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1045                                                 len = sprintf(page, "%d\n", led->state);
1046                                         } else {
1047                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1048                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1049                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1050                                         }
1051                                 }
1052                                 break;
1053                         }
1054                         case PROC_MODEL:
1055                                 len = sprintf(page, "%s\n", platform.name);
1056                                 break;
1057                         case PROC_GPIOMASK:
1058                                 len = sprintf(page, "0x%04x\n", gpiomask);
1059                                 break;
1060                 }
1061         }
1062         len += 1;
1063
1064         if (*ppos < len) {
1065                 len = min_t(int, len - *ppos, count);
1066                 if (copy_to_user(buf, (page + *ppos), len)) {
1067                         kfree(page);
1068                         return -EFAULT;
1069                 }
1070                 *ppos += len;
1071         } else {
1072                 len = 0;
1073         }
1074
1075         kfree(page);
1076         return len;
1077 }
1078
1079
1080 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1081 {
1082 #ifdef LINUX_2_4
1083         struct inode *inode = file->f_dentry->d_inode;
1084         struct proc_dir_entry *dent = inode->u.generic_ip;
1085 #else
1086         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1087 #endif
1088         char *page;
1089         int ret = -EINVAL;
1090
1091         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1092                 return -ENOBUFS;
1093
1094         if (copy_from_user(page, buf, count)) {
1095                 kfree(page);
1096                 return -EINVAL;
1097         }
1098         page[count] = 0;
1099
1100         if (dent->data != NULL) {
1101                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1102                 switch (handler->type) {
1103                         case PROC_LED: {
1104                                 struct led_t *led = (struct led_t *) handler->ptr;
1105                                 int p = (led->polarity == NORMAL ? 0 : 1);
1106
1107                                 if (page[0] == 'f') {
1108                                         led->flash = 1;
1109                                         led_flash(0);
1110                                 } else {
1111                                         led->flash = 0;
1112                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1113                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1114                                                 set_led_extif(led);
1115                                         } else {
1116                                                 gpio_outen(led->gpio, led->gpio);
1117                                                 gpio_control(led->gpio, 0);
1118                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1119                                         }
1120                                 }
1121                                 break;
1122                         }
1123                         case PROC_GPIOMASK:
1124                                 gpiomask = simple_strtoul(page, NULL, 0);
1125
1126                                 if (platform.buttons) {
1127                                         unregister_buttons(platform.buttons);
1128                                         register_buttons(platform.buttons);
1129                                 }
1130
1131                                 if (platform.leds) {
1132                                         unregister_leds(platform.leds);
1133                                         register_leds(platform.leds);
1134                                 }
1135                                 break;
1136                 }
1137                 ret = count;
1138         }
1139
1140         kfree(page);
1141         return ret;
1142 }
1143
1144 static int __init diag_init(void)
1145 {
1146         static struct proc_dir_entry *p;
1147         static struct platform_t *detected;
1148
1149         detected = platform_detect();
1150         if (!detected) {
1151                 printk(MODULE_NAME ": Router model not detected.\n");
1152                 return -ENODEV;
1153         }
1154         memcpy(&platform, detected, sizeof(struct platform_t));
1155
1156         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1157         if (platform.platform_init != NULL) {
1158                 platform.platform_init();
1159         }
1160
1161         if (!(diag = proc_mkdir("diag", NULL))) {
1162                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1163                 return -EINVAL;
1164         }
1165
1166         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1167                 p->data = (void *) &proc_model;
1168                 p->proc_fops = &diag_proc_fops;
1169         }
1170
1171         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1172                 p->data = (void *) &proc_gpiomask;
1173                 p->proc_fops = &diag_proc_fops;
1174         }
1175
1176         if (platform.buttons)
1177                 register_buttons(platform.buttons);
1178
1179         if (platform.leds)
1180                 register_leds(platform.leds);
1181
1182         return 0;
1183 }
1184
1185 static void __exit diag_exit(void)
1186 {
1187         del_timer(&led_timer);
1188
1189         if (platform.buttons)
1190                 unregister_buttons(platform.buttons);
1191
1192         if (platform.leds)
1193                 unregister_leds(platform.leds);
1194
1195         remove_proc_entry("model", diag);
1196         remove_proc_entry("gpiomask", diag);
1197         remove_proc_entry("diag", NULL);
1198 }
1199
1200 module_init(diag_init);
1201 module_exit(diag_exit);
1202
1203 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1204 MODULE_LICENSE("GPL");