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  *                    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 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  32 #include <linux/kobject.h>
  33 #include <linux/workqueue.h>
  34 #define hotplug_path uevent_helper
  35 #else
  36 #include <linux/tqueue.h>
  37 #define INIT_WORK INIT_TQUEUE
  38 #define schedule_work schedule_task
  39 #define work_struct tq_struct
  40 #endif
  41
  42 #include "gpio.h"
  43 #include "diag.h"
  44 #define getvar(str) (nvram_get(str)?:"")
  45
  46 static unsigned int gpiomask = 0;
  47 module_param(gpiomask, int, 0644);
  48
  49 enum {
  50         /* Linksys */
  51         WAP54GV1,
  52         WAP54GV3,
  53         WRT54GV1,
  54         WRT54G,
  55         WRTSL54GS,
  56         WRT54G3G,
  57         WRT350N,
  58
  59         /* ASUS */
  60         WLHDD,
  61         WL300G,
  62         WL500G,
  63         WL500GD,
  64         WL500GP,
  65         WL500W,
  66         ASUS_4702,
  67         WL700GE,
  68
  69         /* Buffalo */
  70         WBR2_G54,
  71         WHR_G54S,
  72         WHR_HP_G54,
  73         WHR2_A54G54,
  74         WLA2_G54L,
  75         WZR_G300N,
  76         WZR_RS_G54,
  77         WZR_RS_G54HP,
  78         BUFFALO_UNKNOWN,
  79         BUFFALO_UNKNOWN_4710,
  80
  81         /* Siemens */
  82         SE505V1,
  83         SE505V2,
  84
  85         /* US Robotics */
  86         USR5461,
  87
  88         /* Dell */
  89         TM2300,
  90
  91         /* Motorola */
  92         WE800G,
  93         WR850GV1,
  94         WR850GV2V3,
  95
  96         /* Belkin */
  97         BELKIN_UNKNOWN,
  98
  99         /* Netgear */
 100         WGT634U,
 101
 102         /* Trendware */
 103         TEW411BRPP,
 104
 105         /* SimpleTech */
 106         STI_NAS,
 107 };
 108
 109 static void __init bcm4780_init(void) {
 110                 int pin = 1 << 3;
 111
 112                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 113                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 114                 gpio_outen(pin, pin);
 115                 gpio_control(pin, 0);
 116                 gpio_out(pin, pin);
 117
 118                 /* Wait 5s, so the HDD can spin up */
 119                 set_current_state(TASK_INTERRUPTIBLE);
 120                 schedule_timeout(HZ * 5);
 121 }
 122
 123 static struct platform_t __initdata platforms[] = {
 124         /* Linksys */
 125         [WAP54GV1] = {
 126                 .name           = "Linksys WAP54G V1",
 127                 .buttons        = {
 128                         { .name = "reset",      .gpio = 1 << 0 },
 129                 },
 130                 .leds           = {
 131                         { .name = "diag",       .gpio = 1 << 3 },
 132                         { .name = "wlan",       .gpio = 1 << 4 },
 133                 },
 134         },
 135         [WAP54GV3] = {
 136                 .name           = "Linksys WAP54G V3",
 137                 .buttons        = {
 138                         /* FIXME: verify this */
 139                         { .name = "reset",      .gpio = 1 << 7 },
 140                         { .name = "ses",        .gpio = 1 << 0 },
 141                 },
 142                 .leds           = {
 143                         /* FIXME: diag? */
 144                         { .name = "ses",        .gpio = 1 << 1 },
 145                 },
 146         },
 147         [WRT54GV1] = {
 148                 .name           = "Linksys WRT54G V1.x",
 149                 .buttons        = {
 150                         { .name = "reset",      .gpio = 1 << 6 },
 151                 },
 152                 .leds           = {
 153                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 154                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 155                 },
 156         },
 157         [WRT54G] = {
 158                 .name           = "Linksys WRT54G/GS/GL",
 159                 .buttons        = {
 160                         { .name = "reset",      .gpio = 1 << 6 },
 161                         { .name = "ses",        .gpio = 1 << 4 },
 162                 },
 163                 .leds           = {
 164                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 165                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 166                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 167                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 168                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 169                 },
 170         },
 171         [WRTSL54GS] = {
 172                 .name           = "Linksys WRTSL54GS",
 173                 .buttons        = {
 174                         { .name = "reset",      .gpio = 1 << 6 },
 175                         { .name = "ses",        .gpio = 1 << 4 },
 176                 },
 177                 .leds           = {
 178                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 179                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 180                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 181                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 182                 },
 183         },
 184         [WRT54G3G] = {
 185                 .name           = "Linksys WRT54G3G",
 186                 .buttons        = {
 187                         { .name = "reset",      .gpio = 1 << 6 },
 188                         { .name = "3g",         .gpio = 1 << 4 },
 189                 },
 190                 .leds           = {
 191                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 192                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 193                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 194                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 195                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 196                 },
 197         },
 198         [WRT350N] = {
 199                 .name           = "Linksys WRT350N",
 200                 .buttons        = {
 201                         { .name = "reset",      .gpio = 1 << 6 },
 202                         { .name = "ses",        .gpio = 1 << 8 },
 203                 },
 204                 .leds           = {
 205                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 206                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 207                 },
 208         },
 209         /* Asus */
 210         [WLHDD] = {
 211                 .name           = "ASUS WL-HDD",
 212                 .buttons        = {
 213                         { .name = "reset",      .gpio = 1 << 6 },
 214                 },
 215                 .leds           = {
 216                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 217                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 218                 },
 219         },
 220         [WL300G] = {
 221                 .name           = "ASUS WL-300g",
 222                 .buttons        = {
 223                         { .name = "reset",      .gpio = 1 << 6 },
 224                 },
 225                 .leds           = {
 226                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 227                 },
 228         },
 229         [WL500G] = {
 230                 .name           = "ASUS WL-500g",
 231                 .buttons        = {
 232                         { .name = "reset",      .gpio = 1 << 6 },
 233                 },
 234                 .leds           = {
 235                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 236                 },
 237         },
 238         [WL500GD] = {
 239                 .name           = "ASUS WL-500g Deluxe",
 240                 .buttons        = {
 241                         { .name = "reset",      .gpio = 1 << 6 },
 242                 },
 243                 .leds           = {
 244                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 245                 },
 246         },
 247         [WL500GP] = {
 248                 .name           = "ASUS WL-500g Premium",
 249                 .buttons        = {
 250                         { .name = "reset",      .gpio = 1 << 0 },
 251                         { .name = "ses",        .gpio = 1 << 4 },
 252                 },
 253                 .leds           = {
 254                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 255                 },
 256         },
 257         [WL500W] = {
 258                 .name           = "ASUS WL-500W",
 259                 .buttons        = {
 260                         { .name = "reset",      .gpio = 1 << 6 },
 261                         { .name = "ses",        .gpio = 1 << 7 },
 262                 },
 263                 .leds           = {
 264                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 265                 },
 266         },
 267         [ASUS_4702] = {
 268                 .name           = "ASUS (unknown, BCM4702)",
 269                 .buttons        = {
 270                         { .name = "reset",      .gpio = 1 << 6 },
 271                 },
 272                 .leds           = {
 273                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 274                 },
 275         },
 276         [WL700GE] = {
 277                 .name           = "ASUS WL-700gE",
 278                 .buttons        = {
 279                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 280                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 281                         { .name = "power",      .gpio = 1 << 0 }, // on front
 282                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 283                 },
 284                 .leds           = {
 285 #if 0
 286                         // GPIO that controls power led also enables/disables some essential functions
 287                         // - power to HDD
 288                         // - switch leds
 289                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 290 #endif
 291                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 292                 },
 293                 .platform_init = bcm4780_init,
 294         },
 295         /* Buffalo */
 296         [WHR_G54S] = {
 297                 .name           = "Buffalo WHR-G54S",
 298                 .buttons        = {
 299                         { .name = "reset",      .gpio = 1 << 4 },
 300                         { .name = "bridge",     .gpio = 1 << 5 },
 301                         { .name = "ses",        .gpio = 1 << 0 },
 302                 },
 303                 .leds           = {
 304                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 305                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 306                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 307                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 308                 },
 309         },
 310         [WBR2_G54] = {
 311                 .name           = "Buffalo WBR2-G54",
 312                 /* FIXME: verify */
 313                 .buttons        = {
 314                         { .name = "reset",      .gpio = 1 << 7 },
 315                 },
 316                 .leds           = {
 317                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 318                 },
 319         },
 320         [WHR_HP_G54] = {
 321                 .name           = "Buffalo WHR-HP-G54",
 322                 .buttons        = {
 323                         { .name = "reset",      .gpio = 1 << 4 },
 324                         { .name = "bridge",     .gpio = 1 << 5 },
 325                         { .name = "ses",        .gpio = 1 << 0 },
 326                 },
 327                 .leds           = {
 328                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 329                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 330                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 331                 },
 332         },
 333         [WHR2_A54G54] = {
 334                 .name           = "Buffalo WHR2-A54G54",
 335                 .buttons        = {
 336                         { .name = "reset",      .gpio = 1 << 4 },
 337                 },
 338                 .leds           = {
 339                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 340                 },
 341         },
 342         [WLA2_G54L] = {
 343                 .name           = "Buffalo WLA2-G54L",
 344                 /* FIXME: verify */
 345                 .buttons        = {
 346                         { .name = "reset",      .gpio = 1 << 7 },
 347                 },
 348                 .leds           = {
 349                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 350                 },
 351         },
 352         [WZR_G300N] = {
 353                 .name           = "Buffalo WZR-G300N",
 354                 .buttons        = {
 355                         { .name = "reset",      .gpio = 1 << 4 },
 356                 },
 357                 .leds           = {
 358                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 359                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 360                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 361                 },
 362         },
 363         [WZR_RS_G54] = {
 364                 .name           = "Buffalo WZR-RS-G54",
 365                 .buttons        = {
 366                         { .name = "ses",        .gpio = 1 << 0 },
 367                         { .name = "reset",      .gpio = 1 << 4 },
 368                 },
 369                 .leds           = {
 370                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 371                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 372                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 373                 },
 374         },
 375         [WZR_RS_G54HP] = {
 376                 .name           = "Buffalo WZR-RS-G54HP",
 377                 .buttons        = {
 378                         { .name = "ses",        .gpio = 1 << 0 },
 379                         { .name = "reset",      .gpio = 1 << 4 },
 380                 },
 381                 .leds           = {
 382                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 383                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 384                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 385                 },
 386         },
 387         [BUFFALO_UNKNOWN] = {
 388                 .name           = "Buffalo (unknown)",
 389                 .buttons        = {
 390                         { .name = "reset",      .gpio = 1 << 7 },
 391                 },
 392                 .leds           = {
 393                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 394                 },
 395         },
 396         [BUFFALO_UNKNOWN_4710] = {
 397                 .name           = "Buffalo (unknown, BCM4710)",
 398                 .buttons        = {
 399                         { .name = "reset",      .gpio = 1 << 4 },
 400                 },
 401                 .leds           = {
 402                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 403                 },
 404         },
 405         /* Siemens */
 406         [SE505V1] = {
 407                 .name           = "Siemens SE505 V1",
 408                 .buttons        = {
 409                         /* No usable buttons */
 410                 },
 411                 .leds           = {
 412                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 413                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 414                 },
 415         },
 416         [SE505V2] = {
 417                 .name           = "Siemens SE505 V2",
 418                 .buttons        = {
 419                         /* No usable buttons */
 420                 },
 421                 .leds           = {
 422                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 423                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 424                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 425                 },
 426         },
 427         /* US Robotics */
 428         [USR5461] = {
 429                 .name           = "U.S. Robotics USR5461",
 430                 .buttons        = {
 431                         /* No usable buttons */
 432                 },
 433                 .leds           = {
 434                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 435                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 436                 },
 437         },
 438         /* Dell */
 439         [TM2300] = {
 440                 .name           = "Dell TrueMobile 2300",
 441                 .buttons        = {
 442                         { .name = "reset",      .gpio = 1 << 0 },
 443                 },
 444                 .leds           = {
 445                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 446                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 447                 },
 448         },
 449         /* Motorola */
 450         [WE800G] = {
 451                 .name           = "Motorola WE800G",
 452                 .buttons        = {
 453                         { .name = "reset",      .gpio = 1 << 0 },
 454                 },
 455                 .leds           = {
 456                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 457                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 458                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 459                 },
 460         },
 461         [WR850GV1] = {
 462                 .name           = "Motorola WR850G V1",
 463                 .buttons        = {
 464                         { .name = "reset",      .gpio = 1 << 0 },
 465                 },
 466                 .leds           = {
 467                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 468                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 469                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 470                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 471                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 472                 },
 473         },
 474         [WR850GV2V3] = {
 475                 .name           = "Motorola WR850G V2/V3",
 476                 .buttons        = {
 477                         { .name = "reset",      .gpio = 1 << 5 },
 478                 },
 479                 .leds           = {
 480                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 481                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 482                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 483                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 484                 },
 485         },
 486         /* Belkin */
 487         [BELKIN_UNKNOWN] = {
 488                 .name           = "Belkin (unknown)",
 489                 /* FIXME: verify & add detection */
 490                 .buttons        = {
 491                         { .name = "reset",      .gpio = 1 << 7 },
 492                 },
 493                 .leds           = {
 494                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 495                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 496                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 497                 },
 498         },
 499         /* Netgear */
 500         [WGT634U] = {
 501                 .name           = "Netgear WGT634U",
 502                 .buttons        = {
 503                         { .name = "reset",      .gpio = 1 << 2 },
 504                 },
 505                 .leds           = {
 506                         { .name = "power",      .gpio = 1 << 3, .polarity = REVERSE },
 507                 },
 508         },
 509         /* Trendware */
 510         [TEW411BRPP] = {
 511                 .name           = "Trendware TEW411BRP+",
 512                 .buttons        = {
 513                         { /* No usable buttons */ },
 514                 },
 515                 .leds           = {
 516                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 517                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 518                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 519                 },
 520         },
 521         /* SimpleTech */
 522         [STI_NAS] = {
 523                 .name      = "SimpleTech SimpleShare NAS",
 524                 .buttons        = {
 525                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 526                         { .name = "power",      .gpio = 1 << 0 }, // on back
 527                 },
 528                 .leds      = {
 529                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 530                 },
 531                 .platform_init = bcm4780_init,
 532         },
 533 };
 534
 535 static struct platform_t __init *platform_detect(void)
 536 {
 537         char *boardnum, *boardtype, *buf;
 538
 539         boardnum = getvar("boardnum");
 540         boardtype = getvar("boardtype");
 541
 542         if (strncmp(getvar("model_no"), "WL700",5) == 0) {
 543                 return &platforms[WL700GE]; }
 544
 545         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 546                 /* CFE based - newer hardware */
 547                 if (!strcmp(boardnum, "42")) { /* Linksys */
 548                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 549                                 return &platforms[WRT350N];
 550
 551                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 552                                 return &platforms[WRT54G3G];
 553
 554                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 555                                 return &platforms[WRTSL54GS];
 556
 557                         /* default to WRT54G */
 558                         return &platforms[WRT54G];
 559                 }
 560
 561                 if (!strcmp(boardnum, "45")) { /* ASUS */
 562                         if (!strcmp(boardtype,"0x042f"))
 563                                 return &platforms[WL500GP];
 564                         else if (!strcmp(boardtype,"0x0472"))
 565                                 return &platforms[WL500W];
 566                         else
 567                                 return &platforms[WL500GD];
 568                 }
 569
 570                 if (!strcmp(boardnum, "10496"))
 571                         return &platforms[USR5461];
 572         } else { /* PMON based - old stuff */
 573
 574                 /* Dell TrueMobile 2300 */
 575                 if (!strcmp(getvar("ModelId"),"WX-5565"))
 576                         return &platforms[TM2300];
 577
 578                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 579                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 580                         if (!strncmp(getvar("ModelId"),"WE800G", 6))
 581                                 return &platforms[WE800G];
 582                         else
 583                                 return &platforms[WR850GV1];
 584                 }
 585                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 586                         if (!strcmp(boardnum, "42"))
 587                                 return &platforms[WRT54GV1];
 588                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 589                                 return &platforms[WAP54GV1];
 590                 }
 591                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 592                         return &platforms[WL500G];
 593                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 594                         /* Either WL-300g or WL-HDD, do more extensive checks */
 595                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 596                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 597                                 return &platforms[WLHDD];
 598                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 599                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 600                                 return &platforms[WL300G];
 601                 }
 602
 603                 /* unknown asus stuff, probably bcm4702 */
 604                 if (!strncmp(boardnum, "asusX", 5))
 605                         return &platforms[ASUS_4702];
 606         }
 607
 608         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 609                 /* Buffalo hardware, check id for specific hardware matches */
 610                 if (!strcmp(buf, "29bb0332"))
 611                         return &platforms[WBR2_G54];
 612                 if (!strcmp(buf, "29129"))
 613                         return &platforms[WLA2_G54L];
 614                 if (!strcmp(buf, "30189"))
 615                         return &platforms[WHR_HP_G54];
 616                 if (!strcmp(buf, "30182"))
 617                         return &platforms[WHR_G54S];
 618                 if (!strcmp(buf, "290441dd"))
 619                         return &platforms[WHR2_A54G54];
 620                 if (!strcmp(buf, "31120"))
 621                         return &platforms[WZR_G300N];
 622                 if (!strcmp(buf, "30083"))
 623                         return &platforms[WZR_RS_G54];
 624                 if (!strcmp(buf, "30103"))
 625                         return &platforms[WZR_RS_G54HP];
 626         }
 627
 628         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 629                 if (!strncmp(boardtype, "bcm94710ap", 10))
 630                         return &platforms[BUFFALO_UNKNOWN_4710];
 631                 else
 632                         return &platforms[BUFFALO_UNKNOWN];
 633         }
 634
 635         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 636                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 637
 638                 return &platforms[WR850GV2V3];
 639         }
 640
 641         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 642                 return &platforms[TEW411BRPP];
 643         }
 644
 645         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 646                 return &platforms[STI_NAS];
 647
 648         /* not found */
 649         return NULL;
 650 }
 651
 652 static void register_buttons(struct button_t *b)
 653 {
 654         for (; b->name; b++)
 655                 platform.button_mask |= b->gpio;
 656
 657         platform.button_mask &= ~gpiomask;
 658
 659         gpio_outen(platform.button_mask, 0);
 660         gpio_control(platform.button_mask, 0);
 661         platform.button_polarity = gpio_in() & platform.button_mask;
 662         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 663         gpio_intmask(platform.button_mask, platform.button_mask);
 664
 665         gpio_set_irqenable(1, button_handler);
 666 }
 667
 668 static void unregister_buttons(struct button_t *b)
 669 {
 670         gpio_intmask(platform.button_mask, 0);
 671
 672         gpio_set_irqenable(0, button_handler);
 673 }
 674
 675 static void hotplug_button(struct event_t *event)
 676 {
 677 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 678         call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
 679 #else
 680         call_usermodehelper (event->argv[0], event->argv, event->envp);
 681 #endif
 682         kfree(event);
 683 }
 684
 685 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 686 {
 687         struct button_t *b;
 688         u32 in, changed;
 689
 690         in = gpio_in() & platform.button_mask;
 691         gpio_intpolarity(platform.button_mask, in);
 692         changed = platform.button_polarity ^ in;
 693         platform.button_polarity = in;
 694
 695         changed &= ~gpio_outen(0, 0);
 696
 697         for (b = platform.buttons; b->name; b++) {
 698                 struct event_t *event;
 699
 700                 if (!(b->gpio & changed)) continue;
 701
 702                 b->pressed ^= 1;
 703
 704                 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 705                         int i;
 706                         char *scratch = event->buf;
 707
 708                         i = 0;
 709                         event->argv[i++] = hotplug_path;
 710                         event->argv[i++] = "button";
 711                         event->argv[i] = 0;
 712
 713                         i = 0;
 714                         event->envp[i++] = "HOME=/";
 715                         event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
 716                         event->envp[i++] = scratch;
 717                         scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
 718                         event->envp[i++] = scratch;
 719                         scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
 720                         event->envp[i++] = scratch;
 721                         scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
 722                         event->envp[i] = 0;
 723
 724                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 725                         schedule_work(&event->wq);
 726                 }
 727
 728                 b->seen = jiffies;
 729         }
 730         return IRQ_HANDLED;
 731 }
 732
 733 static void register_leds(struct led_t *l)
 734 {
 735         struct proc_dir_entry *p;
 736         u32 mask = 0;
 737         u32 val = 0;
 738
 739         leds = proc_mkdir("led", diag);
 740         if (!leds)
 741                 return;
 742
 743         for(; l->name; l++) {
 744                 if (l->gpio & gpiomask)
 745                         continue;
 746
 747                 if (l->gpio & GPIO_TYPE_EXTIF) {
 748                         l->state = 0;
 749                         set_led_extif(l);
 750                 } else {
 751                         mask |= l->gpio;
 752                         val |= (l->polarity == NORMAL)?0:l->gpio;
 753                 }
 754
 755                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 756                         l->proc.type = PROC_LED;
 757                         l->proc.ptr = l;
 758                         p->data = (void *) &l->proc;
 759                         p->proc_fops = &diag_proc_fops;
 760                 }
 761         }
 762
 763         gpio_outen(mask, mask);
 764         gpio_control(mask, 0);
 765         gpio_out(mask, val);
 766 }
 767
 768 static void unregister_leds(struct led_t *l)
 769 {
 770         for(; l->name; l++)
 771                 remove_proc_entry(l->name, leds);
 772
 773         remove_proc_entry("led", diag);
 774 }
 775
 776 static void set_led_extif(struct led_t *led)
 777 {
 778         gpio_set_extif(led->gpio, led->state);
 779 }
 780
 781 static void led_flash(unsigned long dummy) {
 782         struct led_t *l;
 783         u32 mask = 0;
 784         u8 extif_blink = 0;
 785
 786         for (l = platform.leds; l->name; l++) {
 787                 if (l->flash) {
 788                         if (l->gpio & GPIO_TYPE_EXTIF) {
 789                                 extif_blink = 1;
 790                                 l->state = !l->state;
 791                                 set_led_extif(l);
 792                         } else {
 793                                 mask |= l->gpio;
 794                         }
 795                 }
 796         }
 797
 798         mask &= ~gpiomask;
 799         if (mask) {
 800                 u32 val = ~gpio_in();
 801
 802                 gpio_outen(mask, mask);
 803                 gpio_control(mask, 0);
 804                 gpio_out(mask, val);
 805         }
 806         if (mask || extif_blink) {
 807                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 808         }
 809 }
 810
 811 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 812 {
 813 #ifdef LINUX_2_4
 814         struct inode *inode = file->f_dentry->d_inode;
 815         struct proc_dir_entry *dent = inode->u.generic_ip;
 816 #else
 817         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 818 #endif
 819         char *page;
 820         int len = 0;
 821
 822         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 823                 return -ENOBUFS;
 824
 825         if (dent->data != NULL) {
 826                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 827                 switch (handler->type) {
 828                         case PROC_LED: {
 829                                 struct led_t * led = (struct led_t *) handler->ptr;
 830                                 if (led->flash) {
 831                                         len = sprintf(page, "f\n");
 832                                 } else {
 833                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 834                                                 len = sprintf(page, "%d\n", led->state);
 835                                         } else {
 836                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 837                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 838                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 839                                         }
 840                                 }
 841                                 break;
 842                         }
 843                         case PROC_MODEL:
 844                                 len = sprintf(page, "%s\n", platform.name);
 845                                 break;
 846                         case PROC_GPIOMASK:
 847                                 len = sprintf(page, "0x%04x\n", gpiomask);
 848                                 break;
 849                 }
 850         }
 851         len += 1;
 852
 853         if (*ppos < len) {
 854                 len = min_t(int, len - *ppos, count);
 855                 if (copy_to_user(buf, (page + *ppos), len)) {
 856                         kfree(page);
 857                         return -EFAULT;
 858                 }
 859                 *ppos += len;
 860         } else {
 861                 len = 0;
 862         }
 863
 864         return len;
 865 }
 866
 867
 868 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 869 {
 870 #ifdef LINUX_2_4
 871         struct inode *inode = file->f_dentry->d_inode;
 872         struct proc_dir_entry *dent = inode->u.generic_ip;
 873 #else
 874         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 875 #endif
 876         char *page;
 877         int ret = -EINVAL;
 878
 879         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
 880                 return -ENOBUFS;
 881
 882         if (copy_from_user(page, buf, count)) {
 883                 kfree(page);
 884                 return -EINVAL;
 885         }
 886         page[count] = 0;
 887
 888         if (dent->data != NULL) {
 889                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 890                 switch (handler->type) {
 891                         case PROC_LED: {
 892                                 struct led_t *led = (struct led_t *) handler->ptr;
 893                                 int p = (led->polarity == NORMAL ? 0 : 1);
 894
 895                                 if (page[0] == 'f') {
 896                                         led->flash = 1;
 897                                         led_flash(0);
 898                                 } else {
 899                                         led->flash = 0;
 900                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 901                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
 902                                                 set_led_extif(led);
 903                                         } else {
 904                                                 gpio_outen(led->gpio, led->gpio);
 905                                                 gpio_control(led->gpio, 0);
 906                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 907                                         }
 908                                 }
 909                                 break;
 910                         }
 911                         case PROC_GPIOMASK:
 912                                 gpiomask = simple_strtoul(page, NULL, 0);
 913
 914                                 if (platform.buttons) {
 915                                         unregister_buttons(platform.buttons);
 916                                         register_buttons(platform.buttons);
 917                                 }
 918
 919                                 if (platform.leds) {
 920                                         unregister_leds(platform.leds);
 921                                         register_leds(platform.leds);
 922                                 }
 923                                 break;
 924                 }
 925                 ret = count;
 926         }
 927
 928         kfree(page);
 929         return ret;
 930 }
 931
 932 static int __init diag_init(void)
 933 {
 934         static struct proc_dir_entry *p;
 935         static struct platform_t *detected;
 936
 937         detected = platform_detect();
 938         if (!detected) {
 939                 printk(MODULE_NAME ": Router model not detected.\n");
 940                 return -ENODEV;
 941         }
 942         memcpy(&platform, detected, sizeof(struct platform_t));
 943
 944         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
 945         if (platform.platform_init != NULL) {
 946                 platform.platform_init();
 947         }
 948
 949         if (!(diag = proc_mkdir("diag", NULL))) {
 950                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
 951                 return -EINVAL;
 952         }
 953
 954         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
 955                 p->data = (void *) &proc_model;
 956                 p->proc_fops = &diag_proc_fops;
 957         }
 958
 959         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
 960                 p->data = (void *) &proc_gpiomask;
 961                 p->proc_fops = &diag_proc_fops;
 962         }
 963
 964         if (platform.buttons)
 965                 register_buttons(platform.buttons);
 966
 967         if (platform.leds)
 968                 register_leds(platform.leds);
 969
 970         return 0;
 971 }
 972
 973 static void __exit diag_exit(void)
 974 {
 975
 976         del_timer(&led_timer);
 977
 978         if (platform.buttons)
 979                 unregister_buttons(platform.buttons);
 980
 981         if (platform.leds)
 982                 unregister_leds(platform.leds);
 983
 984         remove_proc_entry("model", diag);
 985         remove_proc_entry("gpiomask", diag);
 986         remove_proc_entry("diag", NULL);
 987 }
 988
 989 module_init(diag_init);
 990 module_exit(diag_exit);
 991
 992 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
 993 MODULE_LICENSE("GPL");