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 (strcmp(getvar("nvram_type"), "cfe") == 0)
 543                 return &platforms[WGT634U];
 544
 545         if (strncmp(getvar("model_no"), "WL700",5) == 0)
 546                 return &platforms[WL700GE];
 547
 548         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 549                 /* CFE based - newer hardware */
 550                 if (!strcmp(boardnum, "42")) { /* Linksys */
 551                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 552                                 return &platforms[WRT350N];
 553
 554                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 555                                 return &platforms[WRT54G3G];
 556
 557                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 558                                 return &platforms[WRTSL54GS];
 559
 560                         /* default to WRT54G */
 561                         return &platforms[WRT54G];
 562                 }
 563
 564                 if (!strcmp(boardnum, "45")) { /* ASUS */
 565                         if (!strcmp(boardtype,"0x042f"))
 566                                 return &platforms[WL500GP];
 567                         else if (!strcmp(boardtype,"0x0472"))
 568                                 return &platforms[WL500W];
 569                         else
 570                                 return &platforms[WL500GD];
 571                 }
 572
 573                 if (!strcmp(boardnum, "10496"))
 574                         return &platforms[USR5461];
 575         } else { /* PMON based - old stuff */
 576
 577                 /* Dell TrueMobile 2300 */
 578                 if (!strcmp(getvar("ModelId"),"WX-5565"))
 579                         return &platforms[TM2300];
 580
 581                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 582                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 583                         if (!strncmp(getvar("ModelId"),"WE800G", 6))
 584                                 return &platforms[WE800G];
 585                         else
 586                                 return &platforms[WR850GV1];
 587                 }
 588                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 589                         if (!strcmp(boardnum, "42"))
 590                                 return &platforms[WRT54GV1];
 591                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 592                                 return &platforms[WAP54GV1];
 593                 }
 594                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 595                         return &platforms[WL500G];
 596                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 597                         /* Either WL-300g or WL-HDD, do more extensive checks */
 598                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 599                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 600                                 return &platforms[WLHDD];
 601                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 602                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 603                                 return &platforms[WL300G];
 604                 }
 605
 606                 /* unknown asus stuff, probably bcm4702 */
 607                 if (!strncmp(boardnum, "asusX", 5))
 608                         return &platforms[ASUS_4702];
 609         }
 610
 611         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 612                 /* Buffalo hardware, check id for specific hardware matches */
 613                 if (!strcmp(buf, "29bb0332"))
 614                         return &platforms[WBR2_G54];
 615                 if (!strcmp(buf, "29129"))
 616                         return &platforms[WLA2_G54L];
 617                 if (!strcmp(buf, "30189"))
 618                         return &platforms[WHR_HP_G54];
 619                 if (!strcmp(buf, "30182"))
 620                         return &platforms[WHR_G54S];
 621                 if (!strcmp(buf, "290441dd"))
 622                         return &platforms[WHR2_A54G54];
 623                 if (!strcmp(buf, "31120"))
 624                         return &platforms[WZR_G300N];
 625                 if (!strcmp(buf, "30083"))
 626                         return &platforms[WZR_RS_G54];
 627                 if (!strcmp(buf, "30103"))
 628                         return &platforms[WZR_RS_G54HP];
 629         }
 630
 631         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 632                 if (!strncmp(boardtype, "bcm94710ap", 10))
 633                         return &platforms[BUFFALO_UNKNOWN_4710];
 634                 else
 635                         return &platforms[BUFFALO_UNKNOWN];
 636         }
 637
 638         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 639                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 640
 641                 return &platforms[WR850GV2V3];
 642         }
 643
 644         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 645                 return &platforms[TEW411BRPP];
 646         }
 647
 648         if (!strncmp(boardnum, "04FN52", 6)) /* SimpleTech SimpleShare */
 649                 return &platforms[STI_NAS];
 650
 651         /* not found */
 652         return NULL;
 653 }
 654
 655 static void register_buttons(struct button_t *b)
 656 {
 657         for (; b->name; b++)
 658                 platform.button_mask |= b->gpio;
 659
 660         platform.button_mask &= ~gpiomask;
 661
 662         gpio_outen(platform.button_mask, 0);
 663         gpio_control(platform.button_mask, 0);
 664         platform.button_polarity = gpio_in() & platform.button_mask;
 665         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 666         gpio_intmask(platform.button_mask, platform.button_mask);
 667
 668         gpio_set_irqenable(1, button_handler);
 669 }
 670
 671 static void unregister_buttons(struct button_t *b)
 672 {
 673         gpio_intmask(platform.button_mask, 0);
 674
 675         gpio_set_irqenable(0, button_handler);
 676 }
 677
 678 static void hotplug_button(struct event_t *event)
 679 {
 680 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 681         call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
 682 #else
 683         call_usermodehelper (event->argv[0], event->argv, event->envp);
 684 #endif
 685         kfree(event);
 686 }
 687
 688 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 689 {
 690         struct button_t *b;
 691         u32 in, changed;
 692
 693         in = gpio_in() & platform.button_mask;
 694         gpio_intpolarity(platform.button_mask, in);
 695         changed = platform.button_polarity ^ in;
 696         platform.button_polarity = in;
 697
 698         changed &= ~gpio_outen(0, 0);
 699
 700         for (b = platform.buttons; b->name; b++) {
 701                 struct event_t *event;
 702
 703                 if (!(b->gpio & changed)) continue;
 704
 705                 b->pressed ^= 1;
 706
 707                 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 708                         int i;
 709                         char *scratch = event->buf;
 710
 711                         i = 0;
 712                         event->argv[i++] = hotplug_path;
 713                         event->argv[i++] = "button";
 714                         event->argv[i] = 0;
 715
 716                         i = 0;
 717                         event->envp[i++] = "HOME=/";
 718                         event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
 719                         event->envp[i++] = scratch;
 720                         scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
 721                         event->envp[i++] = scratch;
 722                         scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
 723                         event->envp[i++] = scratch;
 724                         scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
 725                         event->envp[i] = 0;
 726
 727                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 728                         schedule_work(&event->wq);
 729                 }
 730
 731                 b->seen = jiffies;
 732         }
 733         return IRQ_HANDLED;
 734 }
 735
 736 static void register_leds(struct led_t *l)
 737 {
 738         struct proc_dir_entry *p;
 739         u32 mask = 0;
 740         u32 val = 0;
 741
 742         leds = proc_mkdir("led", diag);
 743         if (!leds)
 744                 return;
 745
 746         for(; l->name; l++) {
 747                 if (l->gpio & gpiomask)
 748                         continue;
 749
 750                 if (l->gpio & GPIO_TYPE_EXTIF) {
 751                         l->state = 0;
 752                         set_led_extif(l);
 753                 } else {
 754                         mask |= l->gpio;
 755                         val |= (l->polarity == NORMAL)?0:l->gpio;
 756                 }
 757
 758                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 759                         l->proc.type = PROC_LED;
 760                         l->proc.ptr = l;
 761                         p->data = (void *) &l->proc;
 762                         p->proc_fops = &diag_proc_fops;
 763                 }
 764         }
 765
 766         gpio_outen(mask, mask);
 767         gpio_control(mask, 0);
 768         gpio_out(mask, val);
 769 }
 770
 771 static void unregister_leds(struct led_t *l)
 772 {
 773         for(; l->name; l++)
 774                 remove_proc_entry(l->name, leds);
 775
 776         remove_proc_entry("led", diag);
 777 }
 778
 779 static void set_led_extif(struct led_t *led)
 780 {
 781         gpio_set_extif(led->gpio, led->state);
 782 }
 783
 784 static void led_flash(unsigned long dummy) {
 785         struct led_t *l;
 786         u32 mask = 0;
 787         u8 extif_blink = 0;
 788
 789         for (l = platform.leds; l->name; l++) {
 790                 if (l->flash) {
 791                         if (l->gpio & GPIO_TYPE_EXTIF) {
 792                                 extif_blink = 1;
 793                                 l->state = !l->state;
 794                                 set_led_extif(l);
 795                         } else {
 796                                 mask |= l->gpio;
 797                         }
 798                 }
 799         }
 800
 801         mask &= ~gpiomask;
 802         if (mask) {
 803                 u32 val = ~gpio_in();
 804
 805                 gpio_outen(mask, mask);
 806                 gpio_control(mask, 0);
 807                 gpio_out(mask, val);
 808         }
 809         if (mask || extif_blink) {
 810                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 811         }
 812 }
 813
 814 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 815 {
 816 #ifdef LINUX_2_4
 817         struct inode *inode = file->f_dentry->d_inode;
 818         struct proc_dir_entry *dent = inode->u.generic_ip;
 819 #else
 820         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 821 #endif
 822         char *page;
 823         int len = 0;
 824
 825         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 826                 return -ENOBUFS;
 827
 828         if (dent->data != NULL) {
 829                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 830                 switch (handler->type) {
 831                         case PROC_LED: {
 832                                 struct led_t * led = (struct led_t *) handler->ptr;
 833                                 if (led->flash) {
 834                                         len = sprintf(page, "f\n");
 835                                 } else {
 836                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 837                                                 len = sprintf(page, "%d\n", led->state);
 838                                         } else {
 839                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 840                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 841                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 842                                         }
 843                                 }
 844                                 break;
 845                         }
 846                         case PROC_MODEL:
 847                                 len = sprintf(page, "%s\n", platform.name);
 848                                 break;
 849                         case PROC_GPIOMASK:
 850                                 len = sprintf(page, "0x%04x\n", gpiomask);
 851                                 break;
 852                 }
 853         }
 854         len += 1;
 855
 856         if (*ppos < len) {
 857                 len = min_t(int, len - *ppos, count);
 858                 if (copy_to_user(buf, (page + *ppos), len)) {
 859                         kfree(page);
 860                         return -EFAULT;
 861                 }
 862                 *ppos += len;
 863         } else {
 864                 len = 0;
 865         }
 866
 867         return len;
 868 }
 869
 870
 871 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 872 {
 873 #ifdef LINUX_2_4
 874         struct inode *inode = file->f_dentry->d_inode;
 875         struct proc_dir_entry *dent = inode->u.generic_ip;
 876 #else
 877         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 878 #endif
 879         char *page;
 880         int ret = -EINVAL;
 881
 882         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
 883                 return -ENOBUFS;
 884
 885         if (copy_from_user(page, buf, count)) {
 886                 kfree(page);
 887                 return -EINVAL;
 888         }
 889         page[count] = 0;
 890
 891         if (dent->data != NULL) {
 892                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 893                 switch (handler->type) {
 894                         case PROC_LED: {
 895                                 struct led_t *led = (struct led_t *) handler->ptr;
 896                                 int p = (led->polarity == NORMAL ? 0 : 1);
 897
 898                                 if (page[0] == 'f') {
 899                                         led->flash = 1;
 900                                         led_flash(0);
 901                                 } else {
 902                                         led->flash = 0;
 903                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 904                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
 905                                                 set_led_extif(led);
 906                                         } else {
 907                                                 gpio_outen(led->gpio, led->gpio);
 908                                                 gpio_control(led->gpio, 0);
 909                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 910                                         }
 911                                 }
 912                                 break;
 913                         }
 914                         case PROC_GPIOMASK:
 915                                 gpiomask = simple_strtoul(page, NULL, 0);
 916
 917                                 if (platform.buttons) {
 918                                         unregister_buttons(platform.buttons);
 919                                         register_buttons(platform.buttons);
 920                                 }
 921
 922                                 if (platform.leds) {
 923                                         unregister_leds(platform.leds);
 924                                         register_leds(platform.leds);
 925                                 }
 926                                 break;
 927                 }
 928                 ret = count;
 929         }
 930
 931         kfree(page);
 932         return ret;
 933 }
 934
 935 static int __init diag_init(void)
 936 {
 937         static struct proc_dir_entry *p;
 938         static struct platform_t *detected;
 939
 940         detected = platform_detect();
 941         if (!detected) {
 942                 printk(MODULE_NAME ": Router model not detected.\n");
 943                 return -ENODEV;
 944         }
 945         memcpy(&platform, detected, sizeof(struct platform_t));
 946
 947         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
 948         if (platform.platform_init != NULL) {
 949                 platform.platform_init();
 950         }
 951
 952         if (!(diag = proc_mkdir("diag", NULL))) {
 953                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
 954                 return -EINVAL;
 955         }
 956
 957         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
 958                 p->data = (void *) &proc_model;
 959                 p->proc_fops = &diag_proc_fops;
 960         }
 961
 962         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
 963                 p->data = (void *) &proc_gpiomask;
 964                 p->proc_fops = &diag_proc_fops;
 965         }
 966
 967         if (platform.buttons)
 968                 register_buttons(platform.buttons);
 969
 970         if (platform.leds)
 971                 register_leds(platform.leds);
 972
 973         return 0;
 974 }
 975
 976 static void __exit diag_exit(void)
 977 {
 978
 979         del_timer(&led_timer);
 980
 981         if (platform.buttons)
 982                 unregister_buttons(platform.buttons);
 983
 984         if (platform.leds)
 985                 unregister_leds(platform.leds);
 986
 987         remove_proc_entry("model", diag);
 988         remove_proc_entry("gpiomask", diag);
 989         remove_proc_entry("diag", NULL);
 990 }
 991
 992 module_init(diag_init);
 993 module_exit(diag_exit);
 994
 995 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
 996 MODULE_LICENSE("GPL");