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  * Copyright (C) 2008 Andy Boyett <agb@openwrt.org>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * $Id$
  23  */
  24 #include <linux/module.h>
  25 #include <linux/pci.h>
  26 #include <linux/kmod.h>
  27 #include <linux/proc_fs.h>
  28 #include <linux/timer.h>
  29 #include <linux/version.h>
  30 #include <asm/uaccess.h>
  31
  32 #ifndef LINUX_2_4
  33 #include <linux/workqueue.h>
  34 #include <linux/skbuff.h>
  35 #include <linux/netlink.h>
  36 #include <net/sock.h>
  37 extern struct sock *uevent_sock;
  38 extern u64 uevent_next_seqnum(void);
  39 #else
  40 #include <linux/tqueue.h>
  41 #define INIT_WORK INIT_TQUEUE
  42 #define schedule_work schedule_task
  43 #define work_struct tq_struct
  44 #endif
  45
  46 #include "gpio.h"
  47 #include "diag.h"
  48 #define getvar(str) (nvram_get(str)?:"")
  49
  50 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  51 static int fill_event(struct event_t *);
  52 static unsigned int gpiomask = 0;
  53 module_param(gpiomask, int, 0644);
  54
  55 enum {
  56         /* Linksys */
  57         WAP54GV1,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT350N,
  64
  65         /* ASUS */
  66         WLHDD,
  67         WL300G,
  68         WL500G,
  69         WL500GD,
  70         WL500GP,
  71         WL500GPV2,
  72         WL500W,
  73         WL520GU,
  74         ASUS_4702,
  75         WL700GE,
  76
  77         /* Buffalo */
  78         WBR2_G54,
  79         WHR_G54S,
  80         WHR_HP_G54,
  81         WHR_G125,
  82         WHR2_A54G54,
  83         WLA2_G54L,
  84         WZR_G300N,
  85         WZR_RS_G54,
  86         WZR_RS_G54HP,
  87         BUFFALO_UNKNOWN,
  88         BUFFALO_UNKNOWN_4710,
  89
  90         /* Siemens */
  91         SE505V1,
  92         SE505V2,
  93
  94         /* US Robotics */
  95         USR5461,
  96
  97         /* Dell */
  98         TM2300,
  99
 100         /* Motorola */
 101         WE800G,
 102         WR850GV1,
 103         WR850GV2V3,
 104         WR850GP,
 105
 106         /* Belkin */
 107         BELKIN_UNKNOWN,
 108
 109         /* Netgear */
 110         WGT634U,
 111
 112         /* Trendware */
 113         TEW411BRPP,
 114
 115         /* SimpleTech */
 116         STI_NAS,
 117
 118         /* D-Link */
 119         DIR130,
 120         DIR330,
 121         DWL3150,
 122
 123         /* Sitecom */
 124         WL105B,
 125 };
 126
 127 static void __init bcm4780_init(void) {
 128                 int pin = 1 << 3;
 129
 130                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 131                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 132                 gpio_outen(pin, pin);
 133                 gpio_control(pin, 0);
 134                 gpio_out(pin, pin);
 135
 136                 /* Wait 5s, so the HDD can spin up */
 137                 set_current_state(TASK_INTERRUPTIBLE);
 138                 schedule_timeout(HZ * 5);
 139 }
 140
 141 static void __init bcm57xx_init(void) {
 142         int pin = 1 << 2;
 143
 144         gpio_outen(pin, pin);
 145         gpio_control(pin, 0);
 146         gpio_out(pin, pin);
 147 }
 148
 149 static struct platform_t __initdata platforms[] = {
 150         /* Linksys */
 151         [WAP54GV1] = {
 152                 .name           = "Linksys WAP54G V1",
 153                 .buttons        = {
 154                         { .name = "reset",      .gpio = 1 << 0 },
 155                 },
 156                 .leds           = {
 157                         { .name = "diag",       .gpio = 1 << 3 },
 158                         { .name = "wlan",       .gpio = 1 << 4 },
 159                 },
 160         },
 161         [WAP54GV3] = {
 162                 .name           = "Linksys WAP54G V3",
 163                 .buttons        = {
 164                         /* FIXME: verify this */
 165                         { .name = "reset",      .gpio = 1 << 7 },
 166                         { .name = "ses",        .gpio = 1 << 0 },
 167                 },
 168                 .leds           = {
 169                         /* FIXME: diag? */
 170                         { .name = "ses",        .gpio = 1 << 1 },
 171                 },
 172         },
 173         [WRT54GV1] = {
 174                 .name           = "Linksys WRT54G V1.x",
 175                 .buttons        = {
 176                         { .name = "reset",      .gpio = 1 << 6 },
 177                 },
 178                 .leds           = {
 179                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 180                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 181                 },
 182         },
 183         [WRT54G] = {
 184                 .name           = "Linksys WRT54G/GS/GL",
 185                 .buttons        = {
 186                         { .name = "reset",      .gpio = 1 << 6 },
 187                         { .name = "ses",        .gpio = 1 << 4 },
 188                 },
 189                 .leds           = {
 190                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 191                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 192                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 193                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 194                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 195                 },
 196         },
 197         [WRTSL54GS] = {
 198                 .name           = "Linksys WRTSL54GS",
 199                 .buttons        = {
 200                         { .name = "reset",      .gpio = 1 << 6 },
 201                         { .name = "ses",        .gpio = 1 << 4 },
 202                 },
 203                 .leds           = {
 204                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 205                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 206                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 207                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 208                 },
 209         },
 210         [WRT54G3G] = {
 211                 .name           = "Linksys WRT54G3G",
 212                 .buttons        = {
 213                         { .name = "reset",      .gpio = 1 << 6 },
 214                         { .name = "3g",         .gpio = 1 << 4 },
 215                 },
 216                 .leds           = {
 217                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 218                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 219                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 220                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 221                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 222                 },
 223         },
 224         [WRT350N] = {
 225                 .name           = "Linksys WRT350N",
 226                 .buttons        = {
 227                         { .name = "reset",      .gpio = 1 << 6 },
 228                         { .name = "ses",        .gpio = 1 << 8 },
 229                 },
 230                 .leds           = {
 231                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 232                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 233                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 234                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 235                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 236                 },
 237                 .platform_init = bcm57xx_init,
 238         },
 239         /* Asus */
 240         [WLHDD] = {
 241                 .name           = "ASUS WL-HDD",
 242                 .buttons        = {
 243                         { .name = "reset",      .gpio = 1 << 6 },
 244                 },
 245                 .leds           = {
 246                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 247                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 248                 },
 249         },
 250         [WL300G] = {
 251                 .name           = "ASUS WL-300g",
 252                 .buttons        = {
 253                         { .name = "reset",      .gpio = 1 << 6 },
 254                 },
 255                 .leds           = {
 256                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 257                 },
 258         },
 259         [WL500G] = {
 260                 .name           = "ASUS WL-500g",
 261                 .buttons        = {
 262                         { .name = "reset",      .gpio = 1 << 6 },
 263                 },
 264                 .leds           = {
 265                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 266                 },
 267         },
 268         [WL500GD] = {
 269                 .name           = "ASUS WL-500g Deluxe",
 270                 .buttons        = {
 271                         { .name = "reset",      .gpio = 1 << 6 },
 272                 },
 273                 .leds           = {
 274                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 275                 },
 276         },
 277         [WL500GP] = {
 278                 .name           = "ASUS WL-500g Premium",
 279                 .buttons        = {
 280                         { .name = "reset",      .gpio = 1 << 0 },
 281                         { .name = "ses",        .gpio = 1 << 4 },
 282                 },
 283                 .leds           = {
 284                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 285                 },
 286         },
 287         [WL500W] = {
 288                 .name           = "ASUS WL-500W",
 289                 .buttons        = {
 290                         { .name = "reset",      .gpio = 1 << 6 },
 291                         { .name = "ses",        .gpio = 1 << 7 },
 292                 },
 293                 .leds           = {
 294                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 295                 },
 296         },
 297         [WL520GU] = {
 298                 .name           = "ASUS WL-520gU",
 299                 .buttons        = {
 300                         { .name = "reset",      .gpio = 1 << 2 },
 301                         { .name = "ses",        .gpio = 1 << 3 },
 302                 },
 303                 .leds           = {
 304                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 305                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 306                 },
 307         },
 308         [ASUS_4702] = {
 309                 .name           = "ASUS (unknown, BCM4702)",
 310                 .buttons        = {
 311                         { .name = "reset",      .gpio = 1 << 6 },
 312                 },
 313                 .leds           = {
 314                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 315                 },
 316         },
 317         [WL700GE] = {
 318                 .name           = "ASUS WL-700gE",
 319                 .buttons        = {
 320                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 321                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 322                         { .name = "power",      .gpio = 1 << 0 }, // on front
 323                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 324                 },
 325                 .leds           = {
 326 #if 0
 327                         // GPIO that controls power led also enables/disables some essential functions
 328                         // - power to HDD
 329                         // - switch leds
 330                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 331 #endif
 332                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 333                 },
 334                 .platform_init = bcm4780_init,
 335         },
 336         /* Buffalo */
 337         [WHR_G54S] = {
 338                 .name           = "Buffalo WHR-G54S",
 339                 .buttons        = {
 340                         { .name = "reset",      .gpio = 1 << 4 },
 341                         { .name = "bridge",     .gpio = 1 << 5 },
 342                         { .name = "ses",        .gpio = 1 << 0 },
 343                 },
 344                 .leds           = {
 345                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 346                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 347                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 348                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 349                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 350                 },
 351         },
 352         [WBR2_G54] = {
 353                 .name           = "Buffalo WBR2-G54",
 354                 /* FIXME: verify */
 355                 .buttons        = {
 356                         { .name = "reset",      .gpio = 1 << 7 },
 357                 },
 358                 .leds           = {
 359                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 360                 },
 361         },
 362         [WHR_HP_G54] = {
 363                 .name           = "Buffalo WHR-HP-G54",
 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         [WHR_G125] = {
 378                 .name           = "Buffalo WHR-G125",
 379                 .buttons        = {
 380                         { .name = "reset",      .gpio = 1 << 4 },
 381                         { .name = "bridge",     .gpio = 1 << 5 },
 382                         { .name = "ses",        .gpio = 1 << 0 },
 383                 },
 384                 .leds           = {
 385                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 386                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 387                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 388                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 389                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 390                 },
 391         },
 392         [WHR2_A54G54] = {
 393                 .name           = "Buffalo WHR2-A54G54",
 394                 .buttons        = {
 395                         { .name = "reset",      .gpio = 1 << 4 },
 396                 },
 397                 .leds           = {
 398                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 399                 },
 400         },
 401         [WLA2_G54L] = {
 402                 .name           = "Buffalo WLA2-G54L",
 403                 /* FIXME: verify */
 404                 .buttons        = {
 405                         { .name = "reset",      .gpio = 1 << 7 },
 406                 },
 407                 .leds           = {
 408                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 409                 },
 410         },
 411         [WZR_G300N] = {
 412                 .name           = "Buffalo WZR-G300N",
 413                 .buttons        = {
 414                         { .name = "reset",      .gpio = 1 << 4 },
 415                 },
 416                 .leds           = {
 417                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 418                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 419                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 420                 },
 421         },
 422         [WZR_RS_G54] = {
 423                 .name           = "Buffalo WZR-RS-G54",
 424                 .buttons        = {
 425                         { .name = "ses",        .gpio = 1 << 0 },
 426                         { .name = "reset",      .gpio = 1 << 4 },
 427                 },
 428                 .leds           = {
 429                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 430                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 431                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 432                 },
 433         },
 434         [WZR_RS_G54HP] = {
 435                 .name           = "Buffalo WZR-RS-G54HP",
 436                 .buttons        = {
 437                         { .name = "ses",        .gpio = 1 << 0 },
 438                         { .name = "reset",      .gpio = 1 << 4 },
 439                 },
 440                 .leds           = {
 441                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 442                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 443                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 444                 },
 445         },
 446         [BUFFALO_UNKNOWN] = {
 447                 .name           = "Buffalo (unknown)",
 448                 .buttons        = {
 449                         { .name = "reset",      .gpio = 1 << 7 },
 450                 },
 451                 .leds           = {
 452                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 453                 },
 454         },
 455         [BUFFALO_UNKNOWN_4710] = {
 456                 .name           = "Buffalo (unknown, BCM4710)",
 457                 .buttons        = {
 458                         { .name = "reset",      .gpio = 1 << 4 },
 459                 },
 460                 .leds           = {
 461                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 462                 },
 463         },
 464         /* Siemens */
 465         [SE505V1] = {
 466                 .name           = "Siemens SE505 V1",
 467                 .buttons        = {
 468                         /* No usable buttons */
 469                 },
 470                 .leds           = {
 471                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 472                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 473                 },
 474         },
 475         [SE505V2] = {
 476                 .name           = "Siemens SE505 V2",
 477                 .buttons        = {
 478                         /* No usable buttons */
 479                 },
 480                 .leds           = {
 481                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 482                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 483                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 484                 },
 485         },
 486         /* US Robotics */
 487         [USR5461] = {
 488                 .name           = "U.S. Robotics USR5461",
 489                 .buttons        = {
 490                         /* No usable buttons */
 491                 },
 492                 .leds           = {
 493                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 494                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 495                 },
 496         },
 497         /* Dell */
 498         [TM2300] = {
 499                 .name           = "Dell TrueMobile 2300",
 500                 .buttons        = {
 501                         { .name = "reset",      .gpio = 1 << 0 },
 502                 },
 503                 .leds           = {
 504                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 505                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 506                 },
 507         },
 508         /* Motorola */
 509         [WE800G] = {
 510                 .name           = "Motorola WE800G",
 511                 .buttons        = {
 512                         { .name = "reset",      .gpio = 1 << 0 },
 513                 },
 514                 .leds           = {
 515                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 516                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 517                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 518                 },
 519         },
 520         [WR850GV1] = {
 521                 .name           = "Motorola WR850G V1",
 522                 .buttons        = {
 523                         { .name = "reset",      .gpio = 1 << 0 },
 524                 },
 525                 .leds           = {
 526                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 527                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 528                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 529                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 530                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 531                 },
 532         },
 533         [WR850GV2V3] = {
 534                 .name           = "Motorola WR850G V2/V3",
 535                 .buttons        = {
 536                         { .name = "reset",      .gpio = 1 << 5 },
 537                 },
 538                 .leds           = {
 539                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 540                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 541                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 542                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 543                 },
 544         },
 545         [WR850GP] = {
 546                 .name           = "Motorola WR850GP",
 547                 .buttons        = {
 548                         { .name = "reset",      .gpio = 1 << 5 },
 549                 },
 550                 .leds           = {
 551                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 552                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 553                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 554                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 555                 },
 556         },
 557
 558         /* Belkin */
 559         [BELKIN_UNKNOWN] = {
 560                 .name           = "Belkin (unknown)",
 561                 /* FIXME: verify & add detection */
 562                 .buttons        = {
 563                         { .name = "reset",      .gpio = 1 << 7 },
 564                 },
 565                 .leds           = {
 566                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 567                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 568                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 569                 },
 570         },
 571         /* Netgear */
 572         [WGT634U] = {
 573                 .name           = "Netgear WGT634U",
 574                 .buttons        = {
 575                         { .name = "reset",      .gpio = 1 << 2 },
 576                 },
 577                 .leds           = {
 578                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 579                 },
 580         },
 581         /* Trendware */
 582         [TEW411BRPP] = {
 583                 .name           = "Trendware TEW411BRP+",
 584                 .buttons        = {
 585                         { /* No usable buttons */ },
 586                 },
 587                 .leds           = {
 588                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 589                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 590                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 591                 },
 592         },
 593         /* SimpleTech */
 594         [STI_NAS] = {
 595                 .name      = "SimpleTech SimpleShare NAS",
 596                 .buttons        = {
 597                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 598                         { .name = "power",      .gpio = 1 << 0 }, // on back
 599                 },
 600                 .leds      = {
 601                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 602                 },
 603                 .platform_init = bcm4780_init,
 604         },
 605         /* D-Link */
 606         [DIR130] = {
 607                 .name     = "D-Link DIR-130",
 608                 .buttons        = {
 609                         { .name = "reset",      .gpio = 1 << 3},
 610                         { .name = "reserved",   .gpio = 1 << 7},
 611                 },
 612                 .leds      = {
 613                         { .name = "diag",       .gpio = 1 << 0},
 614                         { .name = "blue",       .gpio = 1 << 6},
 615                 },
 616         },
 617         [DIR330] = {
 618                 .name     = "D-Link DIR-330",
 619                 .buttons        = {
 620                         { .name = "reset",      .gpio = 1 << 3},
 621                         { .name = "reserved",   .gpio = 1 << 7},
 622                 },
 623                 .leds      = {
 624                         { .name = "diag",       .gpio = 1 << 0},
 625                         { .name = "usb",        .gpio = 1 << 4},
 626                         { .name = "blue",       .gpio = 1 << 6},
 627                 },
 628         },
 629         [DWL3150] = {
 630                 .name   = "D-Link DWL-3150",
 631                 .buttons        = {
 632                         { .name = "reset",      .gpio = 1 << 7},
 633                 },
 634                 .leds     = {
 635                         { .name = "diag",       .gpio = 1 << 2},
 636                         { .name = "status",     .gpio = 1 << 1},
 637                 },
 638         },
 639         /* Double check */
 640         [WL105B] = {
 641                 .name   = "Sitecom WL-105b",
 642                 .buttons        = {
 643                         { .name = "reset",      .gpio = 1 << 10},
 644                 },
 645                 .leds     = {
 646                         { .name = "wlan",       .gpio = 1 << 4},
 647                         { .name = "power",      .gpio = 1 << 3},
 648                 },
 649         },
 650 };
 651
 652 static struct platform_t __init *platform_detect(void)
 653 {
 654         char *boardnum, *boardtype, *buf;
 655
 656         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 657                 return &platforms[WGT634U];
 658
 659         /* Look for a model identifier */
 660
 661         /* Based on "model_name" */
 662         if (buf = nvram_get("model_name")) {
 663                 if (!strcmp(buf, "DIR-130"))
 664                         return &platforms[DIR130];
 665                 if (!strcmp(buf, "DIR-330"))
 666                         return &platforms[DIR330];
 667         }
 668
 669         /* Based on "model_no" */
 670         if (buf = nvram_get("model_no")) {
 671                 if (startswith(buf,"WL700")) /* WL700* */
 672                         return &platforms[WL700GE];
 673         }
 674
 675         /* Based on "hardware_version" */
 676         if (buf = nvram_get("hardware_version")) {
 677                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 678                         return &platforms[WL520GU];
 679         }
 680
 681         /* Based on "ModelId" */
 682         if (buf = nvram_get("ModelId")) {
 683                 if (!strcmp(buf, "WR850GP"))
 684                         return &platforms[WR850GP];
 685                 if (!strcmp(buf,"WX-5565"))
 686                         return &platforms[TM2300];
 687                 if (startswith(buf,"WE800G")) /* WE800G* */
 688                         return &platforms[WE800G];
 689         }
 690
 691         /* Buffalo */
 692         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 693                 /* Buffalo hardware, check id for specific hardware matches */
 694                 if (!strcmp(buf, "29bb0332"))
 695                         return &platforms[WBR2_G54];
 696                 if (!strcmp(buf, "29129"))
 697                         return &platforms[WLA2_G54L];
 698                 if (!strcmp(buf, "30189"))
 699                         return &platforms[WHR_HP_G54];
 700                 if (!strcmp(buf, "32093"))
 701                         return &platforms[WHR_G125];
 702                 if (!strcmp(buf, "30182"))
 703                         return &platforms[WHR_G54S];
 704                 if (!strcmp(buf, "290441dd"))
 705                         return &platforms[WHR2_A54G54];
 706                 if (!strcmp(buf, "31120"))
 707                         return &platforms[WZR_G300N];
 708                 if (!strcmp(buf, "30083"))
 709                         return &platforms[WZR_RS_G54];
 710                 if (!strcmp(buf, "30103"))
 711                         return &platforms[WZR_RS_G54HP];
 712         }
 713
 714         /* no easy model number, attempt to guess */
 715         boardnum = getvar("boardnum");
 716         boardtype = getvar("boardtype");
 717
 718         if (startswith(getvar("pmon_ver"), "CFE")) {
 719                 /* CFE based - newer hardware */
 720                 if (!strcmp(boardnum, "42")) { /* Linksys */
 721                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 722                                 return &platforms[WRT350N];
 723
 724                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 725                                 return &platforms[WRT54G3G];
 726
 727                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 728                                 return &platforms[WRTSL54GS];
 729
 730                         /* default to WRT54G */
 731                         return &platforms[WRT54G];
 732                 }
 733
 734                 if (!strcmp(boardnum, "45")) { /* ASUS */
 735                         if (!strcmp(boardtype,"0x042f"))
 736                                 return &platforms[WL500GP];
 737                         else if (!strcmp(boardtype,"0x0472"))
 738                                 return &platforms[WL500W];
 739                         else
 740                                 return &platforms[WL500GD];
 741                 }
 742
 743                 if (!strcmp(boardnum, "10496"))
 744                         return &platforms[USR5461];
 745
 746         } else { /* PMON based - old stuff */
 747                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 748                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 749                         return &platforms[WR850GV1];
 750                 }
 751                 if (startswith(boardtype, "bcm94710dev")) {
 752                         if (!strcmp(boardnum, "42"))
 753                                 return &platforms[WRT54GV1];
 754                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 755                                 return &platforms[WAP54GV1];
 756                 }
 757                 if (startswith(getvar("hardware_version"), "WL500-"))
 758                         return &platforms[WL500G];
 759                 if (startswith(getvar("hardware_version"), "WL300-")) {
 760                         /* Either WL-300g or WL-HDD, do more extensive checks */
 761                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 762                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 763                                 return &platforms[WLHDD];
 764                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 765                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 766                                 return &platforms[WL300G];
 767                 }
 768                 /* Sitecom WL-105b */
 769                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 770                         return &platforms[WL105B];
 771
 772                 /* unknown asus stuff, probably bcm4702 */
 773                 if (startswith(boardnum, "asusX"))
 774                         return &platforms[ASUS_4702];
 775         }
 776
 777         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 778                 if (startswith(boardtype, "bcm94710ap"))
 779                         return &platforms[BUFFALO_UNKNOWN_4710];
 780                 else
 781                         return &platforms[BUFFALO_UNKNOWN];
 782         }
 783
 784         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 785                 startswith(getvar("CFEver"), "MotoWRv3") ||
 786                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 787
 788                 return &platforms[WR850GV2V3];
 789         }
 790
 791         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 792                 return &platforms[TEW411BRPP];
 793         }
 794
 795         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 796                 return &platforms[STI_NAS];
 797
 798         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 799                 return &platforms[DWL3150];
 800
 801         /* not found */
 802         return NULL;
 803 }
 804
 805 static void register_buttons(struct button_t *b)
 806 {
 807         for (; b->name; b++)
 808                 platform.button_mask |= b->gpio;
 809
 810         platform.button_mask &= ~gpiomask;
 811
 812         gpio_outen(platform.button_mask, 0);
 813         gpio_control(platform.button_mask, 0);
 814         platform.button_polarity = gpio_in() & platform.button_mask;
 815         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 816         gpio_intmask(platform.button_mask, platform.button_mask);
 817
 818         gpio_set_irqenable(1, button_handler);
 819 }
 820
 821 static void unregister_buttons(struct button_t *b)
 822 {
 823         gpio_intmask(platform.button_mask, 0);
 824
 825         gpio_set_irqenable(0, button_handler);
 826 }
 827
 828
 829 #ifndef LINUX_2_4
 830 static void add_msg(struct event_t *event, char *msg, int argv)
 831 {
 832         char *s;
 833
 834         if (argv)
 835                 return;
 836
 837         s = skb_put(event->skb, strlen(msg) + 1);
 838         strcpy(s, msg);
 839 }
 840
 841 static void hotplug_button(struct work_struct *work)
 842 {
 843         struct event_t *event = container_of(work, struct event_t, wq);
 844         char *s;
 845
 846         if (!uevent_sock)
 847                 return;
 848
 849         event->skb = alloc_skb(2048, GFP_KERNEL);
 850
 851         s = skb_put(event->skb, strlen(event->action) + 2);
 852         sprintf(s, "%s@", event->action);
 853         fill_event(event);
 854
 855         NETLINK_CB(event->skb).dst_group = 1;
 856         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 857
 858         kfree(event);
 859 }
 860
 861 #else /* !LINUX_2_4 */
 862 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 863 {
 864         char *p;
 865
 866         p = kmalloc(size, gfp);
 867         if (p == NULL)
 868                 return NULL;
 869
 870         memset(p, 0, size);
 871
 872         return p;
 873 }
 874
 875 static void add_msg(struct event_t *event, char *msg, int argv)
 876 {
 877         if (argv)
 878                 event->argv[event->anr++] = event->scratch;
 879         else
 880                 event->envp[event->enr++] = event->scratch;
 881
 882         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 883 }
 884
 885 static void hotplug_button(struct event_t *event)
 886 {
 887         char *scratch = kzalloc(256, GFP_KERNEL);
 888         event->scratch = scratch;
 889
 890         add_msg(event, hotplug_path, 1);
 891         add_msg(event, "button", 1);
 892         fill_event(event);
 893         call_usermodehelper (event->argv[0], event->argv, event->envp);
 894         kfree(scratch);
 895         kfree(event);
 896 }
 897 #endif /* !LINUX_2_4 */
 898
 899 static int fill_event (struct event_t *event)
 900 {
 901         static char buf[128];
 902
 903         add_msg(event, "HOME=/", 0);
 904         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 905         add_msg(event, "SUBSYSTEM=button", 0);
 906         snprintf(buf, 128, "ACTION=%s", event->action);
 907         add_msg(event, buf, 0);
 908         snprintf(buf, 128, "BUTTON=%s", event->name);
 909         add_msg(event, buf, 0);
 910         snprintf(buf, 128, "SEEN=%ld", event->seen);
 911         add_msg(event, buf, 0);
 912 #ifndef LINUX_2_4
 913         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 914         add_msg(event, buf, 0);
 915 #endif
 916
 917         return 0;
 918 }
 919
 920
 921 #ifndef LINUX_2_4
 922 static irqreturn_t button_handler(int irq, void *dev_id)
 923 #else
 924 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 925 #endif
 926 {
 927         struct button_t *b;
 928         u32 in, changed;
 929
 930         in = gpio_in() & platform.button_mask;
 931         gpio_intpolarity(platform.button_mask, in);
 932         changed = platform.button_polarity ^ in;
 933         platform.button_polarity = in;
 934
 935         changed &= ~gpio_outen(0, 0);
 936
 937         for (b = platform.buttons; b->name; b++) {
 938                 struct event_t *event;
 939
 940                 if (!(b->gpio & changed)) continue;
 941
 942                 b->pressed ^= 1;
 943
 944                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 945                         event->seen = (jiffies - b->seen)/HZ;
 946                         event->name = b->name;
 947                         event->action = b->pressed ? "pressed" : "released";
 948 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 949                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 950 #else
 951                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 952 #endif
 953                         schedule_work(&event->wq);
 954                 }
 955
 956                 b->seen = jiffies;
 957         }
 958         return IRQ_HANDLED;
 959 }
 960
 961 static void register_leds(struct led_t *l)
 962 {
 963         struct proc_dir_entry *p;
 964         u32 mask = 0;
 965         u32 oe_mask = 0;
 966         u32 val = 0;
 967
 968         leds = proc_mkdir("led", diag);
 969         if (!leds)
 970                 return;
 971
 972         for(; l->name; l++) {
 973                 if (l->gpio & gpiomask)
 974                         continue;
 975
 976                 if (l->gpio & GPIO_TYPE_EXTIF) {
 977                         l->state = 0;
 978                         set_led_extif(l);
 979                 } else {
 980                         if (l->polarity != INPUT) oe_mask != l->gpio;
 981                         mask |= l->gpio;
 982                         val |= (l->polarity == NORMAL)?0:l->gpio;
 983                 }
 984
 985                 if (l->polarity == INPUT) continue;
 986
 987                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 988                         l->proc.type = PROC_LED;
 989                         l->proc.ptr = l;
 990                         p->data = (void *) &l->proc;
 991                         p->proc_fops = &diag_proc_fops;
 992                 }
 993         }
 994
 995         gpio_outen(mask, oe_mask);
 996         gpio_control(mask, 0);
 997         gpio_out(mask, val);
 998 }
 999
1000 static void unregister_leds(struct led_t *l)
1001 {
1002         for(; l->name; l++)
1003                 remove_proc_entry(l->name, leds);
1004
1005         remove_proc_entry("led", diag);
1006 }
1007
1008 static void set_led_extif(struct led_t *led)
1009 {
1010         gpio_set_extif(led->gpio, led->state);
1011 }
1012
1013 static void led_flash(unsigned long dummy) {
1014         struct led_t *l;
1015         u32 mask = 0;
1016         u8 extif_blink = 0;
1017
1018         for (l = platform.leds; l->name; l++) {
1019                 if (l->flash) {
1020                         if (l->gpio & GPIO_TYPE_EXTIF) {
1021                                 extif_blink = 1;
1022                                 l->state = !l->state;
1023                                 set_led_extif(l);
1024                         } else {
1025                                 mask |= l->gpio;
1026                         }
1027                 }
1028         }
1029
1030         mask &= ~gpiomask;
1031         if (mask) {
1032                 u32 val = ~gpio_in();
1033
1034                 gpio_outen(mask, mask);
1035                 gpio_control(mask, 0);
1036                 gpio_out(mask, val);
1037         }
1038         if (mask || extif_blink) {
1039                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1040         }
1041 }
1042
1043 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1044 {
1045 #ifdef LINUX_2_4
1046         struct inode *inode = file->f_dentry->d_inode;
1047         struct proc_dir_entry *dent = inode->u.generic_ip;
1048 #else
1049         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1050 #endif
1051         char *page;
1052         int len = 0;
1053
1054         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1055                 return -ENOBUFS;
1056
1057         if (dent->data != NULL) {
1058                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1059                 switch (handler->type) {
1060                         case PROC_LED: {
1061                                 struct led_t * led = (struct led_t *) handler->ptr;
1062                                 if (led->flash) {
1063                                         len = sprintf(page, "f\n");
1064                                 } else {
1065                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1066                                                 len = sprintf(page, "%d\n", led->state);
1067                                         } else {
1068                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1069                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1070                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1071                                         }
1072                                 }
1073                                 break;
1074                         }
1075                         case PROC_MODEL:
1076                                 len = sprintf(page, "%s\n", platform.name);
1077                                 break;
1078                         case PROC_GPIOMASK:
1079                                 len = sprintf(page, "0x%04x\n", gpiomask);
1080                                 break;
1081                 }
1082         }
1083         len += 1;
1084
1085         if (*ppos < len) {
1086                 len = min_t(int, len - *ppos, count);
1087                 if (copy_to_user(buf, (page + *ppos), len)) {
1088                         kfree(page);
1089                         return -EFAULT;
1090                 }
1091                 *ppos += len;
1092         } else {
1093                 len = 0;
1094         }
1095
1096         kfree(page);
1097         return len;
1098 }
1099
1100
1101 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1102 {
1103 #ifdef LINUX_2_4
1104         struct inode *inode = file->f_dentry->d_inode;
1105         struct proc_dir_entry *dent = inode->u.generic_ip;
1106 #else
1107         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1108 #endif
1109         char *page;
1110         int ret = -EINVAL;
1111
1112         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1113                 return -ENOBUFS;
1114
1115         if (copy_from_user(page, buf, count)) {
1116                 kfree(page);
1117                 return -EINVAL;
1118         }
1119         page[count] = 0;
1120
1121         if (dent->data != NULL) {
1122                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1123                 switch (handler->type) {
1124                         case PROC_LED: {
1125                                 struct led_t *led = (struct led_t *) handler->ptr;
1126                                 int p = (led->polarity == NORMAL ? 0 : 1);
1127
1128                                 if (page[0] == 'f') {
1129                                         led->flash = 1;
1130                                         led_flash(0);
1131                                 } else {
1132                                         led->flash = 0;
1133                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1134                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1135                                                 set_led_extif(led);
1136                                         } else {
1137                                                 gpio_outen(led->gpio, led->gpio);
1138                                                 gpio_control(led->gpio, 0);
1139                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1140                                         }
1141                                 }
1142                                 break;
1143                         }
1144                         case PROC_GPIOMASK:
1145                                 gpiomask = simple_strtoul(page, NULL, 0);
1146
1147                                 if (platform.buttons) {
1148                                         unregister_buttons(platform.buttons);
1149                                         register_buttons(platform.buttons);
1150                                 }
1151
1152                                 if (platform.leds) {
1153                                         unregister_leds(platform.leds);
1154                                         register_leds(platform.leds);
1155                                 }
1156                                 break;
1157                 }
1158                 ret = count;
1159         }
1160
1161         kfree(page);
1162         return ret;
1163 }
1164
1165 static int __init diag_init(void)
1166 {
1167         static struct proc_dir_entry *p;
1168         static struct platform_t *detected;
1169
1170         detected = platform_detect();
1171         if (!detected) {
1172                 printk(MODULE_NAME ": Router model not detected.\n");
1173                 return -ENODEV;
1174         }
1175         memcpy(&platform, detected, sizeof(struct platform_t));
1176
1177         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1178         if (platform.platform_init != NULL) {
1179                 platform.platform_init();
1180         }
1181
1182         if (!(diag = proc_mkdir("diag", NULL))) {
1183                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1184                 return -EINVAL;
1185         }
1186
1187         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1188                 p->data = (void *) &proc_model;
1189                 p->proc_fops = &diag_proc_fops;
1190         }
1191
1192         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1193                 p->data = (void *) &proc_gpiomask;
1194                 p->proc_fops = &diag_proc_fops;
1195         }
1196
1197         if (platform.buttons)
1198                 register_buttons(platform.buttons);
1199
1200         if (platform.leds)
1201                 register_leds(platform.leds);
1202
1203         return 0;
1204 }
1205
1206 static void __exit diag_exit(void)
1207 {
1208         del_timer(&led_timer);
1209
1210         if (platform.buttons)
1211                 unregister_buttons(platform.buttons);
1212
1213         if (platform.leds)
1214                 unregister_leds(platform.leds);
1215
1216         remove_proc_entry("model", diag);
1217         remove_proc_entry("gpiomask", diag);
1218         remove_proc_entry("diag", NULL);
1219 }
1220
1221 module_init(diag_init);
1222 module_exit(diag_exit);
1223
1224 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1225 MODULE_LICENSE("GPL");