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_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 218                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 219                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 220                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 221                 },
 222         },
 223         /* Asus */
 224         [WLHDD] = {
 225                 .name           = "ASUS WL-HDD",
 226                 .buttons        = {
 227                         { .name = "reset",      .gpio = 1 << 6 },
 228                 },
 229                 .leds           = {
 230                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 231                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 232                 },
 233         },
 234         [WL300G] = {
 235                 .name           = "ASUS WL-300g",
 236                 .buttons        = {
 237                         { .name = "reset",      .gpio = 1 << 6 },
 238                 },
 239                 .leds           = {
 240                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 241                 },
 242         },
 243         [WL500G] = {
 244                 .name           = "ASUS WL-500g",
 245                 .buttons        = {
 246                         { .name = "reset",      .gpio = 1 << 6 },
 247                 },
 248                 .leds           = {
 249                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 250                 },
 251         },
 252         [WL500GD] = {
 253                 .name           = "ASUS WL-500g Deluxe",
 254                 .buttons        = {
 255                         { .name = "reset",      .gpio = 1 << 6 },
 256                 },
 257                 .leds           = {
 258                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 259                 },
 260         },
 261         [WL500GP] = {
 262                 .name           = "ASUS WL-500g Premium",
 263                 .buttons        = {
 264                         { .name = "reset",      .gpio = 1 << 0 },
 265                         { .name = "ses",        .gpio = 1 << 4 },
 266                 },
 267                 .leds           = {
 268                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 269                 },
 270         },
 271         [WL500W] = {
 272                 .name           = "ASUS WL-500W",
 273                 .buttons        = {
 274                         { .name = "reset",      .gpio = 1 << 6 },
 275                         { .name = "ses",        .gpio = 1 << 7 },
 276                 },
 277                 .leds           = {
 278                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 279                 },
 280         },
 281         [ASUS_4702] = {
 282                 .name           = "ASUS (unknown, BCM4702)",
 283                 .buttons        = {
 284                         { .name = "reset",      .gpio = 1 << 6 },
 285                 },
 286                 .leds           = {
 287                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 288                 },
 289         },
 290         [WL700GE] = {
 291                 .name           = "ASUS WL-700gE",
 292                 .buttons        = {
 293                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 294                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 295                         { .name = "power",      .gpio = 1 << 0 }, // on front
 296                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 297                 },
 298                 .leds           = {
 299 #if 0
 300                         // GPIO that controls power led also enables/disables some essential functions
 301                         // - power to HDD
 302                         // - switch leds
 303                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 304 #endif
 305                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 306                 },
 307                 .platform_init = bcm4780_init,
 308         },
 309         /* Buffalo */
 310         [WHR_G54S] = {
 311                 .name           = "Buffalo WHR-G54S",
 312                 .buttons        = {
 313                         { .name = "reset",      .gpio = 1 << 4 },
 314                         { .name = "bridge",     .gpio = 1 << 5 },
 315                         { .name = "ses",        .gpio = 1 << 0 },
 316                 },
 317                 .leds           = {
 318                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 319                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 320                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 321                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 322                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 323                 },
 324         },
 325         [WBR2_G54] = {
 326                 .name           = "Buffalo WBR2-G54",
 327                 /* FIXME: verify */
 328                 .buttons        = {
 329                         { .name = "reset",      .gpio = 1 << 7 },
 330                 },
 331                 .leds           = {
 332                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 333                 },
 334         },
 335         [WHR_HP_G54] = {
 336                 .name           = "Buffalo WHR-HP-G54",
 337                 .buttons        = {
 338                         { .name = "reset",      .gpio = 1 << 4 },
 339                         { .name = "bridge",     .gpio = 1 << 5 },
 340                         { .name = "ses",        .gpio = 1 << 0 },
 341                 },
 342                 .leds           = {
 343                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 344                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 345                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 346                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 347                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 348                 },
 349         },
 350         [WHR_G125] = {
 351                 .name           = "Buffalo WHR-G125",
 352                 .buttons        = {
 353                         { .name = "reset",      .gpio = 1 << 4 },
 354                         { .name = "bridge",     .gpio = 1 << 5 },
 355                         { .name = "ses",        .gpio = 1 << 0 },
 356                 },
 357                 .leds           = {
 358                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 359                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 360                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 361                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 362                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 363                 },
 364         },
 365         [WHR2_A54G54] = {
 366                 .name           = "Buffalo WHR2-A54G54",
 367                 .buttons        = {
 368                         { .name = "reset",      .gpio = 1 << 4 },
 369                 },
 370                 .leds           = {
 371                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 372                 },
 373         },
 374         [WLA2_G54L] = {
 375                 .name           = "Buffalo WLA2-G54L",
 376                 /* FIXME: verify */
 377                 .buttons        = {
 378                         { .name = "reset",      .gpio = 1 << 7 },
 379                 },
 380                 .leds           = {
 381                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 382                 },
 383         },
 384         [WZR_G300N] = {
 385                 .name           = "Buffalo WZR-G300N",
 386                 .buttons        = {
 387                         { .name = "reset",      .gpio = 1 << 4 },
 388                 },
 389                 .leds           = {
 390                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 391                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 392                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 393                 },
 394         },
 395         [WZR_RS_G54] = {
 396                 .name           = "Buffalo WZR-RS-G54",
 397                 .buttons        = {
 398                         { .name = "ses",        .gpio = 1 << 0 },
 399                         { .name = "reset",      .gpio = 1 << 4 },
 400                 },
 401                 .leds           = {
 402                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 403                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 404                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 405                 },
 406         },
 407         [WZR_RS_G54HP] = {
 408                 .name           = "Buffalo WZR-RS-G54HP",
 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         [BUFFALO_UNKNOWN] = {
 420                 .name           = "Buffalo (unknown)",
 421                 .buttons        = {
 422                         { .name = "reset",      .gpio = 1 << 7 },
 423                 },
 424                 .leds           = {
 425                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 426                 },
 427         },
 428         [BUFFALO_UNKNOWN_4710] = {
 429                 .name           = "Buffalo (unknown, BCM4710)",
 430                 .buttons        = {
 431                         { .name = "reset",      .gpio = 1 << 4 },
 432                 },
 433                 .leds           = {
 434                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 435                 },
 436         },
 437         /* Siemens */
 438         [SE505V1] = {
 439                 .name           = "Siemens SE505 V1",
 440                 .buttons        = {
 441                         /* No usable buttons */
 442                 },
 443                 .leds           = {
 444                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 445                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 446                 },
 447         },
 448         [SE505V2] = {
 449                 .name           = "Siemens SE505 V2",
 450                 .buttons        = {
 451                         /* No usable buttons */
 452                 },
 453                 .leds           = {
 454                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 455                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 456                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 457                 },
 458         },
 459         /* US Robotics */
 460         [USR5461] = {
 461                 .name           = "U.S. Robotics USR5461",
 462                 .buttons        = {
 463                         /* No usable buttons */
 464                 },
 465                 .leds           = {
 466                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 467                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 468                 },
 469         },
 470         /* Dell */
 471         [TM2300] = {
 472                 .name           = "Dell TrueMobile 2300",
 473                 .buttons        = {
 474                         { .name = "reset",      .gpio = 1 << 0 },
 475                 },
 476                 .leds           = {
 477                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 478                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 479                 },
 480         },
 481         /* Motorola */
 482         [WE800G] = {
 483                 .name           = "Motorola WE800G",
 484                 .buttons        = {
 485                         { .name = "reset",      .gpio = 1 << 0 },
 486                 },
 487                 .leds           = {
 488                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 489                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 490                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 491                 },
 492         },
 493         [WR850GV1] = {
 494                 .name           = "Motorola WR850G V1",
 495                 .buttons        = {
 496                         { .name = "reset",      .gpio = 1 << 0 },
 497                 },
 498                 .leds           = {
 499                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 500                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 501                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 502                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 503                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 504                 },
 505         },
 506         [WR850GV2V3] = {
 507                 .name           = "Motorola WR850G V2/V3",
 508                 .buttons        = {
 509                         { .name = "reset",      .gpio = 1 << 5 },
 510                 },
 511                 .leds           = {
 512                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 513                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 514                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 515                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 516                 },
 517         },
 518         [WR850GP] = {
 519                 .name           = "Motorola WR850GP",
 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 = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 527                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 528                 },
 529         },
 530
 531         /* Belkin */
 532         [BELKIN_UNKNOWN] = {
 533                 .name           = "Belkin (unknown)",
 534                 /* FIXME: verify & add detection */
 535                 .buttons        = {
 536                         { .name = "reset",      .gpio = 1 << 7 },
 537                 },
 538                 .leds           = {
 539                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 540                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 541                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 542                 },
 543         },
 544         /* Netgear */
 545         [WGT634U] = {
 546                 .name           = "Netgear WGT634U",
 547                 .buttons        = {
 548                         { .name = "reset",      .gpio = 1 << 2 },
 549                 },
 550                 .leds           = {
 551                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 552                 },
 553         },
 554         /* Trendware */
 555         [TEW411BRPP] = {
 556                 .name           = "Trendware TEW411BRP+",
 557                 .buttons        = {
 558                         { /* No usable buttons */ },
 559                 },
 560                 .leds           = {
 561                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 562                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 563                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 564                 },
 565         },
 566         /* SimpleTech */
 567         [STI_NAS] = {
 568                 .name      = "SimpleTech SimpleShare NAS",
 569                 .buttons        = {
 570                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 571                         { .name = "power",      .gpio = 1 << 0 }, // on back
 572                 },
 573                 .leds      = {
 574                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 575                 },
 576                 .platform_init = bcm4780_init,
 577         },
 578         /* D-Link */
 579         [DIR130] = {
 580                 .name     = "D-Link DIR-130",
 581                 .buttons        = {
 582                         { .name = "reset",      .gpio = 1 << 3},
 583                         { .name = "reserved",   .gpio = 1 << 7},
 584                 },
 585                 .leds      = {
 586                         { .name = "diag",       .gpio = 1 << 0},
 587                         { .name = "blue",       .gpio = 1 << 6},
 588                 },
 589         },
 590         [DIR330] = {
 591                 .name     = "D-Link DIR-330",
 592                 .buttons        = {
 593                         { .name = "reset",      .gpio = 1 << 3},
 594                         { .name = "reserved",   .gpio = 1 << 7},
 595                 },
 596                 .leds      = {
 597                         { .name = "diag",       .gpio = 1 << 0},
 598                         { .name = "usb",        .gpio = 1 << 4},
 599                         { .name = "blue",       .gpio = 1 << 6},
 600                 },
 601         },
 602         [DWL3150] = {
 603                 .name   = "D-Link DWL-3150",
 604                 .buttons        = {
 605                         { .name = "reset",      .gpio = 1 << 7},
 606                 },
 607                 .leds     = {
 608                         { .name = "diag",       .gpio = 1 << 2},
 609                         { .name = "status",     .gpio = 1 << 1},
 610                 },
 611         },
 612 };
 613
 614 static struct platform_t __init *platform_detect(void)
 615 {
 616         char *boardnum, *boardtype, *buf;
 617
 618         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 619                 return &platforms[WGT634U];
 620
 621         /* Look for a model identifier */
 622
 623         /* Based on "model_name" */
 624         if (buf = nvram_get("model_name")) {
 625                 if (!strcmp(buf, "DIR-130"))
 626                         return &platforms[DIR130];
 627                 if (!strcmp(buf, "DIR-330"))
 628                         return &platforms[DIR330];
 629         }
 630
 631         /* Based on "model_no" */
 632         if (buf = nvram_get("model_no")) {
 633                 if (!strncmp(buf,"WL700", 5)) /* WL700* */
 634                         return &platforms[WL700GE];
 635         }
 636
 637         /* Based on "ModelId" */
 638         if (buf = nvram_get("ModelId")) {
 639                 if (!strcmp(buf, "WR850GP"))
 640                         return &platforms[WR850GP];
 641                 if (!strcmp(buf,"WX-5565"))
 642                         return &platforms[TM2300];
 643                 if (!strncmp(buf,"WE800G", 6)) /* WE800G* */
 644                         return &platforms[WE800G];
 645         }
 646
 647         /* Buffalo */
 648         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 649                 /* Buffalo hardware, check id for specific hardware matches */
 650                 if (!strcmp(buf, "29bb0332"))
 651                         return &platforms[WBR2_G54];
 652                 if (!strcmp(buf, "29129"))
 653                         return &platforms[WLA2_G54L];
 654                 if (!strcmp(buf, "30189"))
 655                         return &platforms[WHR_HP_G54];
 656                 if (!strcmp(buf, "32093"))
 657                         return &platforms[WHR_G125];
 658                 if (!strcmp(buf, "30182"))
 659                         return &platforms[WHR_G54S];
 660                 if (!strcmp(buf, "290441dd"))
 661                         return &platforms[WHR2_A54G54];
 662                 if (!strcmp(buf, "31120"))
 663                         return &platforms[WZR_G300N];
 664                 if (!strcmp(buf, "30083"))
 665                         return &platforms[WZR_RS_G54];
 666                 if (!strcmp(buf, "30103"))
 667                         return &platforms[WZR_RS_G54HP];
 668         }
 669
 670         /* no easy model number, attempt to guess */
 671         boardnum = getvar("boardnum");
 672         boardtype = getvar("boardtype");
 673
 674         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 675                 /* CFE based - newer hardware */
 676                 if (!strcmp(boardnum, "42")) { /* Linksys */
 677                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 678                                 return &platforms[WRT350N];
 679
 680                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 681                                 return &platforms[WRT54G3G];
 682
 683                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 684                                 return &platforms[WRTSL54GS];
 685
 686                         /* default to WRT54G */
 687                         return &platforms[WRT54G];
 688                 }
 689
 690                 if (!strcmp(boardnum, "45")) { /* ASUS */
 691                         if (!strcmp(boardtype,"0x042f"))
 692                                 return &platforms[WL500GP];
 693                         else if (!strcmp(boardtype,"0x0472"))
 694                                 return &platforms[WL500W];
 695                         else
 696                                 return &platforms[WL500GD];
 697                 }
 698
 699                 if (!strcmp(boardnum, "10496"))
 700                         return &platforms[USR5461];
 701
 702         } else { /* PMON based - old stuff */
 703                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 704                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 705                         return &platforms[WR850GV1];
 706                 }
 707                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 708                         if (!strcmp(boardnum, "42"))
 709                                 return &platforms[WRT54GV1];
 710                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 711                                 return &platforms[WAP54GV1];
 712                 }
 713                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 714                         return &platforms[WL500G];
 715                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 716                         /* Either WL-300g or WL-HDD, do more extensive checks */
 717                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 718                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 719                                 return &platforms[WLHDD];
 720                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 721                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 722                                 return &platforms[WL300G];
 723                 }
 724
 725                 /* unknown asus stuff, probably bcm4702 */
 726                 if (!strncmp(boardnum, "asusX", 5))
 727                         return &platforms[ASUS_4702];
 728         }
 729
 730         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 731                 if (!strncmp(boardtype, "bcm94710ap", 10))
 732                         return &platforms[BUFFALO_UNKNOWN_4710];
 733                 else
 734                         return &platforms[BUFFALO_UNKNOWN];
 735         }
 736
 737         if (!strncmp(getvar("CFEver"), "MotoWRv2", 8) ||
 738                 !strncmp(getvar("CFEver"), "MotoWRv3", 8) ||
 739                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 740
 741                 return &platforms[WR850GV2V3];
 742         }
 743
 744         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 745                 return &platforms[TEW411BRPP];
 746         }
 747
 748         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 749                 return &platforms[STI_NAS];
 750
 751         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 752                 return &platforms[DWL3150];
 753
 754         /* not found */
 755         return NULL;
 756 }
 757
 758 static void register_buttons(struct button_t *b)
 759 {
 760         for (; b->name; b++)
 761                 platform.button_mask |= b->gpio;
 762
 763         platform.button_mask &= ~gpiomask;
 764
 765         gpio_outen(platform.button_mask, 0);
 766         gpio_control(platform.button_mask, 0);
 767         platform.button_polarity = gpio_in() & platform.button_mask;
 768         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 769         gpio_intmask(platform.button_mask, platform.button_mask);
 770
 771         gpio_set_irqenable(1, button_handler);
 772 }
 773
 774 static void unregister_buttons(struct button_t *b)
 775 {
 776         gpio_intmask(platform.button_mask, 0);
 777
 778         gpio_set_irqenable(0, button_handler);
 779 }
 780
 781
 782 #ifndef LINUX_2_4
 783 static void add_msg(struct event_t *event, char *msg, int argv)
 784 {
 785         char *s;
 786
 787         if (argv)
 788                 return;
 789
 790         s = skb_put(event->skb, strlen(msg) + 1);
 791         strcpy(s, msg);
 792 }
 793
 794 static void hotplug_button(struct work_struct *work)
 795 {
 796         struct event_t *event = container_of(work, struct event_t, wq);
 797         char *s;
 798
 799         if (!uevent_sock)
 800                 return;
 801
 802         event->skb = alloc_skb(2048, GFP_KERNEL);
 803
 804         s = skb_put(event->skb, strlen(event->action) + 2);
 805         sprintf(s, "%s@", event->action);
 806         fill_event(event);
 807
 808         NETLINK_CB(event->skb).dst_group = 1;
 809         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 810
 811         kfree(event);
 812 }
 813
 814 #else /* !LINUX_2_4 */
 815 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 816 {
 817         char *p;
 818
 819         p = kmalloc(size, gfp);
 820         if (p == NULL)
 821                 return NULL;
 822
 823         memset(p, 0, size);
 824
 825         return p;
 826 }
 827
 828 static void add_msg(struct event_t *event, char *msg, int argv)
 829 {
 830         if (argv)
 831                 event->argv[event->anr++] = event->scratch;
 832         else
 833                 event->envp[event->enr++] = event->scratch;
 834
 835         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 836 }
 837
 838 static void hotplug_button(struct event_t *event)
 839 {
 840         char *scratch = kzalloc(256, GFP_KERNEL);
 841         event->scratch = scratch;
 842
 843         add_msg(event, hotplug_path, 1);
 844         add_msg(event, "button", 1);
 845         fill_event(event);
 846         call_usermodehelper (event->argv[0], event->argv, event->envp);
 847         kfree(scratch);
 848         kfree(event);
 849 }
 850 #endif /* !LINUX_2_4 */
 851
 852 static int fill_event (struct event_t *event)
 853 {
 854         static char buf[128];
 855
 856         add_msg(event, "HOME=/", 0);
 857         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 858         add_msg(event, "SUBSYSTEM=button", 0);
 859         snprintf(buf, 128, "ACTION=%s", event->action);
 860         add_msg(event, buf, 0);
 861         snprintf(buf, 128, "BUTTON=%s", event->name);
 862         add_msg(event, buf, 0);
 863         snprintf(buf, 128, "SEEN=%ld", event->seen);
 864         add_msg(event, buf, 0);
 865 #ifndef LINUX_2_4
 866         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 867         add_msg(event, buf, 0);
 868 #endif
 869
 870         return 0;
 871 }
 872
 873
 874 #ifndef LINUX_2_4
 875 static irqreturn_t button_handler(int irq, void *dev_id)
 876 #else
 877 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 878 #endif
 879 {
 880         struct button_t *b;
 881         u32 in, changed;
 882
 883         in = gpio_in() & platform.button_mask;
 884         gpio_intpolarity(platform.button_mask, in);
 885         changed = platform.button_polarity ^ in;
 886         platform.button_polarity = in;
 887
 888         changed &= ~gpio_outen(0, 0);
 889
 890         for (b = platform.buttons; b->name; b++) {
 891                 struct event_t *event;
 892
 893                 if (!(b->gpio & changed)) continue;
 894
 895                 b->pressed ^= 1;
 896
 897                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 898                         event->seen = (jiffies - b->seen)/HZ;
 899                         event->name = b->name;
 900                         event->action = b->pressed ? "pressed" : "released";
 901 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 902                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 903 #else
 904                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 905 #endif
 906                         schedule_work(&event->wq);
 907                 }
 908
 909                 b->seen = jiffies;
 910         }
 911         return IRQ_HANDLED;
 912 }
 913
 914 static void register_leds(struct led_t *l)
 915 {
 916         struct proc_dir_entry *p;
 917         u32 mask = 0;
 918         u32 oe_mask = 0;
 919         u32 val = 0;
 920
 921         leds = proc_mkdir("led", diag);
 922         if (!leds)
 923                 return;
 924
 925         for(; l->name; l++) {
 926                 if (l->gpio & gpiomask)
 927                         continue;
 928
 929                 if (l->gpio & GPIO_TYPE_EXTIF) {
 930                         l->state = 0;
 931                         set_led_extif(l);
 932                 } else {
 933                         if (l->polarity != INPUT) oe_mask != l->gpio;
 934                         mask |= l->gpio;
 935                         val |= (l->polarity == NORMAL)?0:l->gpio;
 936                 }
 937
 938                 if (l->polarity == INPUT) continue;
 939
 940                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 941                         l->proc.type = PROC_LED;
 942                         l->proc.ptr = l;
 943                         p->data = (void *) &l->proc;
 944                         p->proc_fops = &diag_proc_fops;
 945                 }
 946         }
 947
 948         gpio_outen(mask, oe_mask);
 949         gpio_control(mask, 0);
 950         gpio_out(mask, val);
 951 }
 952
 953 static void unregister_leds(struct led_t *l)
 954 {
 955         for(; l->name; l++)
 956                 remove_proc_entry(l->name, leds);
 957
 958         remove_proc_entry("led", diag);
 959 }
 960
 961 static void set_led_extif(struct led_t *led)
 962 {
 963         gpio_set_extif(led->gpio, led->state);
 964 }
 965
 966 static void led_flash(unsigned long dummy) {
 967         struct led_t *l;
 968         u32 mask = 0;
 969         u8 extif_blink = 0;
 970
 971         for (l = platform.leds; l->name; l++) {
 972                 if (l->flash) {
 973                         if (l->gpio & GPIO_TYPE_EXTIF) {
 974                                 extif_blink = 1;
 975                                 l->state = !l->state;
 976                                 set_led_extif(l);
 977                         } else {
 978                                 mask |= l->gpio;
 979                         }
 980                 }
 981         }
 982
 983         mask &= ~gpiomask;
 984         if (mask) {
 985                 u32 val = ~gpio_in();
 986
 987                 gpio_outen(mask, mask);
 988                 gpio_control(mask, 0);
 989                 gpio_out(mask, val);
 990         }
 991         if (mask || extif_blink) {
 992                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 993         }
 994 }
 995
 996 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 997 {
 998 #ifdef LINUX_2_4
 999         struct inode *inode = file->f_dentry->d_inode;
1000         struct proc_dir_entry *dent = inode->u.generic_ip;
1001 #else
1002         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1003 #endif
1004         char *page;
1005         int len = 0;
1006
1007         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1008                 return -ENOBUFS;
1009
1010         if (dent->data != NULL) {
1011                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1012                 switch (handler->type) {
1013                         case PROC_LED: {
1014                                 struct led_t * led = (struct led_t *) handler->ptr;
1015                                 if (led->flash) {
1016                                         len = sprintf(page, "f\n");
1017                                 } else {
1018                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1019                                                 len = sprintf(page, "%d\n", led->state);
1020                                         } else {
1021                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1022                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1023                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1024                                         }
1025                                 }
1026                                 break;
1027                         }
1028                         case PROC_MODEL:
1029                                 len = sprintf(page, "%s\n", platform.name);
1030                                 break;
1031                         case PROC_GPIOMASK:
1032                                 len = sprintf(page, "0x%04x\n", gpiomask);
1033                                 break;
1034                 }
1035         }
1036         len += 1;
1037
1038         if (*ppos < len) {
1039                 len = min_t(int, len - *ppos, count);
1040                 if (copy_to_user(buf, (page + *ppos), len)) {
1041                         kfree(page);
1042                         return -EFAULT;
1043                 }
1044                 *ppos += len;
1045         } else {
1046                 len = 0;
1047         }
1048
1049         kfree(page);
1050         return len;
1051 }
1052
1053
1054 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1055 {
1056 #ifdef LINUX_2_4
1057         struct inode *inode = file->f_dentry->d_inode;
1058         struct proc_dir_entry *dent = inode->u.generic_ip;
1059 #else
1060         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1061 #endif
1062         char *page;
1063         int ret = -EINVAL;
1064
1065         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1066                 return -ENOBUFS;
1067
1068         if (copy_from_user(page, buf, count)) {
1069                 kfree(page);
1070                 return -EINVAL;
1071         }
1072         page[count] = 0;
1073
1074         if (dent->data != NULL) {
1075                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1076                 switch (handler->type) {
1077                         case PROC_LED: {
1078                                 struct led_t *led = (struct led_t *) handler->ptr;
1079                                 int p = (led->polarity == NORMAL ? 0 : 1);
1080
1081                                 if (page[0] == 'f') {
1082                                         led->flash = 1;
1083                                         led_flash(0);
1084                                 } else {
1085                                         led->flash = 0;
1086                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1087                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1088                                                 set_led_extif(led);
1089                                         } else {
1090                                                 gpio_outen(led->gpio, led->gpio);
1091                                                 gpio_control(led->gpio, 0);
1092                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1093                                         }
1094                                 }
1095                                 break;
1096                         }
1097                         case PROC_GPIOMASK:
1098                                 gpiomask = simple_strtoul(page, NULL, 0);
1099
1100                                 if (platform.buttons) {
1101                                         unregister_buttons(platform.buttons);
1102                                         register_buttons(platform.buttons);
1103                                 }
1104
1105                                 if (platform.leds) {
1106                                         unregister_leds(platform.leds);
1107                                         register_leds(platform.leds);
1108                                 }
1109                                 break;
1110                 }
1111                 ret = count;
1112         }
1113
1114         kfree(page);
1115         return ret;
1116 }
1117
1118 static int __init diag_init(void)
1119 {
1120         static struct proc_dir_entry *p;
1121         static struct platform_t *detected;
1122
1123         detected = platform_detect();
1124         if (!detected) {
1125                 printk(MODULE_NAME ": Router model not detected.\n");
1126                 return -ENODEV;
1127         }
1128         memcpy(&platform, detected, sizeof(struct platform_t));
1129
1130         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1131         if (platform.platform_init != NULL) {
1132                 platform.platform_init();
1133         }
1134
1135         if (!(diag = proc_mkdir("diag", NULL))) {
1136                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1137                 return -EINVAL;
1138         }
1139
1140         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1141                 p->data = (void *) &proc_model;
1142                 p->proc_fops = &diag_proc_fops;
1143         }
1144
1145         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1146                 p->data = (void *) &proc_gpiomask;
1147                 p->proc_fops = &diag_proc_fops;
1148         }
1149
1150         if (platform.buttons)
1151                 register_buttons(platform.buttons);
1152
1153         if (platform.leds)
1154                 register_leds(platform.leds);
1155
1156         return 0;
1157 }
1158
1159 static void __exit diag_exit(void)
1160 {
1161         del_timer(&led_timer);
1162
1163         if (platform.buttons)
1164                 unregister_buttons(platform.buttons);
1165
1166         if (platform.leds)
1167                 unregister_leds(platform.leds);
1168
1169         remove_proc_entry("model", diag);
1170         remove_proc_entry("gpiomask", diag);
1171         remove_proc_entry("diag", NULL);
1172 }
1173
1174 module_init(diag_init);
1175 module_exit(diag_exit);
1176
1177 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1178 MODULE_LICENSE("GPL");