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         WL500W,
  72         ASUS_4702,
  73         WL700GE,
  74
  75         /* Buffalo */
  76         WBR2_G54,
  77         WHR_G54S,
  78         WHR_HP_G54,
  79         WHR_G125,
  80         WHR2_A54G54,
  81         WLA2_G54L,
  82         WZR_G300N,
  83         WZR_RS_G54,
  84         WZR_RS_G54HP,
  85         BUFFALO_UNKNOWN,
  86         BUFFALO_UNKNOWN_4710,
  87
  88         /* Siemens */
  89         SE505V1,
  90         SE505V2,
  91
  92         /* US Robotics */
  93         USR5461,
  94
  95         /* Dell */
  96         TM2300,
  97
  98         /* Motorola */
  99         WE800G,
 100         WR850GV1,
 101         WR850GV2V3,
 102         WR850GP,
 103
 104         /* Belkin */
 105         BELKIN_UNKNOWN,
 106
 107         /* Netgear */
 108         WGT634U,
 109
 110         /* Trendware */
 111         TEW411BRPP,
 112
 113         /* SimpleTech */
 114         STI_NAS,
 115
 116         /* D-Link */
 117         DIR130,
 118         DIR330,
 119         DWL3150,
 120
 121         /* Sitecom */
 122         WL105B,
 123 };
 124
 125 static void __init bcm4780_init(void) {
 126                 int pin = 1 << 3;
 127
 128                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 129                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 130                 gpio_outen(pin, pin);
 131                 gpio_control(pin, 0);
 132                 gpio_out(pin, pin);
 133
 134                 /* Wait 5s, so the HDD can spin up */
 135                 set_current_state(TASK_INTERRUPTIBLE);
 136                 schedule_timeout(HZ * 5);
 137 }
 138
 139 static void __init bcm57xx_init(void) {
 140         int pin = 1 << 2;
 141
 142         gpio_outen(pin, pin);
 143         gpio_control(pin, 0);
 144         gpio_out(pin, pin);
 145 }
 146
 147 static struct platform_t __initdata platforms[] = {
 148         /* Linksys */
 149         [WAP54GV1] = {
 150                 .name           = "Linksys WAP54G V1",
 151                 .buttons        = {
 152                         { .name = "reset",      .gpio = 1 << 0 },
 153                 },
 154                 .leds           = {
 155                         { .name = "diag",       .gpio = 1 << 3 },
 156                         { .name = "wlan",       .gpio = 1 << 4 },
 157                 },
 158         },
 159         [WAP54GV3] = {
 160                 .name           = "Linksys WAP54G V3",
 161                 .buttons        = {
 162                         /* FIXME: verify this */
 163                         { .name = "reset",      .gpio = 1 << 7 },
 164                         { .name = "ses",        .gpio = 1 << 0 },
 165                 },
 166                 .leds           = {
 167                         /* FIXME: diag? */
 168                         { .name = "ses",        .gpio = 1 << 1 },
 169                 },
 170         },
 171         [WRT54GV1] = {
 172                 .name           = "Linksys WRT54G V1.x",
 173                 .buttons        = {
 174                         { .name = "reset",      .gpio = 1 << 6 },
 175                 },
 176                 .leds           = {
 177                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 178                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 179                 },
 180         },
 181         [WRT54G] = {
 182                 .name           = "Linksys WRT54G/GS/GL",
 183                 .buttons        = {
 184                         { .name = "reset",      .gpio = 1 << 6 },
 185                         { .name = "ses",        .gpio = 1 << 4 },
 186                 },
 187                 .leds           = {
 188                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 189                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 190                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 191                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 192                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 193                 },
 194         },
 195         [WRTSL54GS] = {
 196                 .name           = "Linksys WRTSL54GS",
 197                 .buttons        = {
 198                         { .name = "reset",      .gpio = 1 << 6 },
 199                         { .name = "ses",        .gpio = 1 << 4 },
 200                 },
 201                 .leds           = {
 202                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 203                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 204                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 205                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 206                 },
 207         },
 208         [WRT54G3G] = {
 209                 .name           = "Linksys WRT54G3G",
 210                 .buttons        = {
 211                         { .name = "reset",      .gpio = 1 << 6 },
 212                         { .name = "3g",         .gpio = 1 << 4 },
 213                 },
 214                 .leds           = {
 215                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 216                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 217                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 218                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 219                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 220                 },
 221         },
 222         [WRT350N] = {
 223                 .name           = "Linksys WRT350N",
 224                 .buttons        = {
 225                         { .name = "reset",      .gpio = 1 << 6 },
 226                         { .name = "ses",        .gpio = 1 << 8 },
 227                 },
 228                 .leds           = {
 229                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 230                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 231                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 232                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 233                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 234                 },
 235                 .platform_init = bcm57xx_init,
 236         },
 237         /* Asus */
 238         [WLHDD] = {
 239                 .name           = "ASUS WL-HDD",
 240                 .buttons        = {
 241                         { .name = "reset",      .gpio = 1 << 6 },
 242                 },
 243                 .leds           = {
 244                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 245                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 246                 },
 247         },
 248         [WL300G] = {
 249                 .name           = "ASUS WL-300g",
 250                 .buttons        = {
 251                         { .name = "reset",      .gpio = 1 << 6 },
 252                 },
 253                 .leds           = {
 254                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 255                 },
 256         },
 257         [WL500G] = {
 258                 .name           = "ASUS WL-500g",
 259                 .buttons        = {
 260                         { .name = "reset",      .gpio = 1 << 6 },
 261                 },
 262                 .leds           = {
 263                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 264                 },
 265         },
 266         [WL500GD] = {
 267                 .name           = "ASUS WL-500g Deluxe",
 268                 .buttons        = {
 269                         { .name = "reset",      .gpio = 1 << 6 },
 270                 },
 271                 .leds           = {
 272                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 273                 },
 274         },
 275         [WL500GP] = {
 276                 .name           = "ASUS WL-500g Premium",
 277                 .buttons        = {
 278                         { .name = "reset",      .gpio = 1 << 0 },
 279                         { .name = "ses",        .gpio = 1 << 4 },
 280                 },
 281                 .leds           = {
 282                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 283                 },
 284         },
 285         [WL500W] = {
 286                 .name           = "ASUS WL-500W",
 287                 .buttons        = {
 288                         { .name = "reset",      .gpio = 1 << 6 },
 289                         { .name = "ses",        .gpio = 1 << 7 },
 290                 },
 291                 .leds           = {
 292                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 293                 },
 294         },
 295         [ASUS_4702] = {
 296                 .name           = "ASUS (unknown, BCM4702)",
 297                 .buttons        = {
 298                         { .name = "reset",      .gpio = 1 << 6 },
 299                 },
 300                 .leds           = {
 301                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 302                 },
 303         },
 304         [WL700GE] = {
 305                 .name           = "ASUS WL-700gE",
 306                 .buttons        = {
 307                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 308                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 309                         { .name = "power",      .gpio = 1 << 0 }, // on front
 310                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 311                 },
 312                 .leds           = {
 313 #if 0
 314                         // GPIO that controls power led also enables/disables some essential functions
 315                         // - power to HDD
 316                         // - switch leds
 317                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 318 #endif
 319                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 320                 },
 321                 .platform_init = bcm4780_init,
 322         },
 323         /* Buffalo */
 324         [WHR_G54S] = {
 325                 .name           = "Buffalo WHR-G54S",
 326                 .buttons        = {
 327                         { .name = "reset",      .gpio = 1 << 4 },
 328                         { .name = "bridge",     .gpio = 1 << 5 },
 329                         { .name = "ses",        .gpio = 1 << 0 },
 330                 },
 331                 .leds           = {
 332                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 333                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 334                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 335                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 336                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 337                 },
 338         },
 339         [WBR2_G54] = {
 340                 .name           = "Buffalo WBR2-G54",
 341                 /* FIXME: verify */
 342                 .buttons        = {
 343                         { .name = "reset",      .gpio = 1 << 7 },
 344                 },
 345                 .leds           = {
 346                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 347                 },
 348         },
 349         [WHR_HP_G54] = {
 350                 .name           = "Buffalo WHR-HP-G54",
 351                 .buttons        = {
 352                         { .name = "reset",      .gpio = 1 << 4 },
 353                         { .name = "bridge",     .gpio = 1 << 5 },
 354                         { .name = "ses",        .gpio = 1 << 0 },
 355                 },
 356                 .leds           = {
 357                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 358                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 359                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 360                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 361                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 362                 },
 363         },
 364         [WHR_G125] = {
 365                 .name           = "Buffalo WHR-G125",
 366                 .buttons        = {
 367                         { .name = "reset",      .gpio = 1 << 4 },
 368                         { .name = "bridge",     .gpio = 1 << 5 },
 369                         { .name = "ses",        .gpio = 1 << 0 },
 370                 },
 371                 .leds           = {
 372                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 373                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 374                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 375                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 376                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 377                 },
 378         },
 379         [WHR2_A54G54] = {
 380                 .name           = "Buffalo WHR2-A54G54",
 381                 .buttons        = {
 382                         { .name = "reset",      .gpio = 1 << 4 },
 383                 },
 384                 .leds           = {
 385                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 386                 },
 387         },
 388         [WLA2_G54L] = {
 389                 .name           = "Buffalo WLA2-G54L",
 390                 /* FIXME: verify */
 391                 .buttons        = {
 392                         { .name = "reset",      .gpio = 1 << 7 },
 393                 },
 394                 .leds           = {
 395                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 396                 },
 397         },
 398         [WZR_G300N] = {
 399                 .name           = "Buffalo WZR-G300N",
 400                 .buttons        = {
 401                         { .name = "reset",      .gpio = 1 << 4 },
 402                 },
 403                 .leds           = {
 404                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 405                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 406                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 407                 },
 408         },
 409         [WZR_RS_G54] = {
 410                 .name           = "Buffalo WZR-RS-G54",
 411                 .buttons        = {
 412                         { .name = "ses",        .gpio = 1 << 0 },
 413                         { .name = "reset",      .gpio = 1 << 4 },
 414                 },
 415                 .leds           = {
 416                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 417                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 418                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 419                 },
 420         },
 421         [WZR_RS_G54HP] = {
 422                 .name           = "Buffalo WZR-RS-G54HP",
 423                 .buttons        = {
 424                         { .name = "ses",        .gpio = 1 << 0 },
 425                         { .name = "reset",      .gpio = 1 << 4 },
 426                 },
 427                 .leds           = {
 428                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 429                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 430                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 431                 },
 432         },
 433         [BUFFALO_UNKNOWN] = {
 434                 .name           = "Buffalo (unknown)",
 435                 .buttons        = {
 436                         { .name = "reset",      .gpio = 1 << 7 },
 437                 },
 438                 .leds           = {
 439                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 440                 },
 441         },
 442         [BUFFALO_UNKNOWN_4710] = {
 443                 .name           = "Buffalo (unknown, BCM4710)",
 444                 .buttons        = {
 445                         { .name = "reset",      .gpio = 1 << 4 },
 446                 },
 447                 .leds           = {
 448                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 449                 },
 450         },
 451         /* Siemens */
 452         [SE505V1] = {
 453                 .name           = "Siemens SE505 V1",
 454                 .buttons        = {
 455                         /* No usable buttons */
 456                 },
 457                 .leds           = {
 458                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 459                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 460                 },
 461         },
 462         [SE505V2] = {
 463                 .name           = "Siemens SE505 V2",
 464                 .buttons        = {
 465                         /* No usable buttons */
 466                 },
 467                 .leds           = {
 468                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 469                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 470                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 471                 },
 472         },
 473         /* US Robotics */
 474         [USR5461] = {
 475                 .name           = "U.S. Robotics USR5461",
 476                 .buttons        = {
 477                         /* No usable buttons */
 478                 },
 479                 .leds           = {
 480                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 481                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 482                 },
 483         },
 484         /* Dell */
 485         [TM2300] = {
 486                 .name           = "Dell TrueMobile 2300",
 487                 .buttons        = {
 488                         { .name = "reset",      .gpio = 1 << 0 },
 489                 },
 490                 .leds           = {
 491                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 492                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 493                 },
 494         },
 495         /* Motorola */
 496         [WE800G] = {
 497                 .name           = "Motorola WE800G",
 498                 .buttons        = {
 499                         { .name = "reset",      .gpio = 1 << 0 },
 500                 },
 501                 .leds           = {
 502                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 503                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 504                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 505                 },
 506         },
 507         [WR850GV1] = {
 508                 .name           = "Motorola WR850G V1",
 509                 .buttons        = {
 510                         { .name = "reset",      .gpio = 1 << 0 },
 511                 },
 512                 .leds           = {
 513                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 514                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 515                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 516                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 517                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 518                 },
 519         },
 520         [WR850GV2V3] = {
 521                 .name           = "Motorola WR850G V2/V3",
 522                 .buttons        = {
 523                         { .name = "reset",      .gpio = 1 << 5 },
 524                 },
 525                 .leds           = {
 526                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 527                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 528                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 529                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 530                 },
 531         },
 532         [WR850GP] = {
 533                 .name           = "Motorola WR850GP",
 534                 .buttons        = {
 535                         { .name = "reset",      .gpio = 1 << 5 },
 536                 },
 537                 .leds           = {
 538                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 539                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 540                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 541                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 542                 },
 543         },
 544
 545         /* Belkin */
 546         [BELKIN_UNKNOWN] = {
 547                 .name           = "Belkin (unknown)",
 548                 /* FIXME: verify & add detection */
 549                 .buttons        = {
 550                         { .name = "reset",      .gpio = 1 << 7 },
 551                 },
 552                 .leds           = {
 553                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 554                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 555                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 556                 },
 557         },
 558         /* Netgear */
 559         [WGT634U] = {
 560                 .name           = "Netgear WGT634U",
 561                 .buttons        = {
 562                         { .name = "reset",      .gpio = 1 << 2 },
 563                 },
 564                 .leds           = {
 565                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 566                 },
 567         },
 568         /* Trendware */
 569         [TEW411BRPP] = {
 570                 .name           = "Trendware TEW411BRP+",
 571                 .buttons        = {
 572                         { /* No usable buttons */ },
 573                 },
 574                 .leds           = {
 575                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 576                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 577                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 578                 },
 579         },
 580         /* SimpleTech */
 581         [STI_NAS] = {
 582                 .name      = "SimpleTech SimpleShare NAS",
 583                 .buttons        = {
 584                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 585                         { .name = "power",      .gpio = 1 << 0 }, // on back
 586                 },
 587                 .leds      = {
 588                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 589                 },
 590                 .platform_init = bcm4780_init,
 591         },
 592         /* D-Link */
 593         [DIR130] = {
 594                 .name     = "D-Link DIR-130",
 595                 .buttons        = {
 596                         { .name = "reset",      .gpio = 1 << 3},
 597                         { .name = "reserved",   .gpio = 1 << 7},
 598                 },
 599                 .leds      = {
 600                         { .name = "diag",       .gpio = 1 << 0},
 601                         { .name = "blue",       .gpio = 1 << 6},
 602                 },
 603         },
 604         [DIR330] = {
 605                 .name     = "D-Link DIR-330",
 606                 .buttons        = {
 607                         { .name = "reset",      .gpio = 1 << 3},
 608                         { .name = "reserved",   .gpio = 1 << 7},
 609                 },
 610                 .leds      = {
 611                         { .name = "diag",       .gpio = 1 << 0},
 612                         { .name = "usb",        .gpio = 1 << 4},
 613                         { .name = "blue",       .gpio = 1 << 6},
 614                 },
 615         },
 616         [DWL3150] = {
 617                 .name   = "D-Link DWL-3150",
 618                 .buttons        = {
 619                         { .name = "reset",      .gpio = 1 << 7},
 620                 },
 621                 .leds     = {
 622                         { .name = "diag",       .gpio = 1 << 2},
 623                         { .name = "status",     .gpio = 1 << 1},
 624                 },
 625         },
 626         /* Double check */
 627         [WL105B] = {
 628                 .name   = "Sitecom WL-105b",
 629                 .buttons        = {
 630                         { .name = "reset",      .gpio = 1 << 10},
 631                 },
 632                 .leds     = {
 633                         { .name = "wlan",       .gpio = 1 << 4},
 634                         { .name = "power",      .gpio = 1 << 3},
 635                 },
 636         },
 637 };
 638
 639 static struct platform_t __init *platform_detect(void)
 640 {
 641         char *boardnum, *boardtype, *buf;
 642
 643         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 644                 return &platforms[WGT634U];
 645
 646         /* Look for a model identifier */
 647
 648         /* Based on "model_name" */
 649         if (buf = nvram_get("model_name")) {
 650                 if (!strcmp(buf, "DIR-130"))
 651                         return &platforms[DIR130];
 652                 if (!strcmp(buf, "DIR-330"))
 653                         return &platforms[DIR330];
 654         }
 655
 656         /* Based on "model_no" */
 657         if (buf = nvram_get("model_no")) {
 658                 if (startswith(buf,"WL700")) /* WL700* */
 659                         return &platforms[WL700GE];
 660         }
 661
 662         /* Based on "ModelId" */
 663         if (buf = nvram_get("ModelId")) {
 664                 if (!strcmp(buf, "WR850GP"))
 665                         return &platforms[WR850GP];
 666                 if (!strcmp(buf,"WX-5565"))
 667                         return &platforms[TM2300];
 668                 if (startswith(buf,"WE800G")) /* WE800G* */
 669                         return &platforms[WE800G];
 670         }
 671
 672         /* Buffalo */
 673         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 674                 /* Buffalo hardware, check id for specific hardware matches */
 675                 if (!strcmp(buf, "29bb0332"))
 676                         return &platforms[WBR2_G54];
 677                 if (!strcmp(buf, "29129"))
 678                         return &platforms[WLA2_G54L];
 679                 if (!strcmp(buf, "30189"))
 680                         return &platforms[WHR_HP_G54];
 681                 if (!strcmp(buf, "32093"))
 682                         return &platforms[WHR_G125];
 683                 if (!strcmp(buf, "30182"))
 684                         return &platforms[WHR_G54S];
 685                 if (!strcmp(buf, "290441dd"))
 686                         return &platforms[WHR2_A54G54];
 687                 if (!strcmp(buf, "31120"))
 688                         return &platforms[WZR_G300N];
 689                 if (!strcmp(buf, "30083"))
 690                         return &platforms[WZR_RS_G54];
 691                 if (!strcmp(buf, "30103"))
 692                         return &platforms[WZR_RS_G54HP];
 693         }
 694
 695         /* no easy model number, attempt to guess */
 696         boardnum = getvar("boardnum");
 697         boardtype = getvar("boardtype");
 698
 699         if (startswith(getvar("pmon_ver"), "CFE")) {
 700                 /* CFE based - newer hardware */
 701                 if (!strcmp(boardnum, "42")) { /* Linksys */
 702                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 703                                 return &platforms[WRT350N];
 704
 705                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 706                                 return &platforms[WRT54G3G];
 707
 708                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 709                                 return &platforms[WRTSL54GS];
 710
 711                         /* default to WRT54G */
 712                         return &platforms[WRT54G];
 713                 }
 714
 715                 if (!strcmp(boardnum, "45")) { /* ASUS */
 716                         if (!strcmp(boardtype,"0x042f"))
 717                                 return &platforms[WL500GP];
 718                         else if (!strcmp(boardtype,"0x0472"))
 719                                 return &platforms[WL500W];
 720                         else
 721                                 return &platforms[WL500GD];
 722                 }
 723
 724                 if (!strcmp(boardnum, "10496"))
 725                         return &platforms[USR5461];
 726
 727         } else { /* PMON based - old stuff */
 728                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 729                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 730                         return &platforms[WR850GV1];
 731                 }
 732                 if (startswith(boardtype, "bcm94710dev")) {
 733                         if (!strcmp(boardnum, "42"))
 734                                 return &platforms[WRT54GV1];
 735                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 736                                 return &platforms[WAP54GV1];
 737                 }
 738                 if (startswith(getvar("hardware_version"), "WL500-"))
 739                         return &platforms[WL500G];
 740                 if (startswith(getvar("hardware_version"), "WL300-")) {
 741                         /* Either WL-300g or WL-HDD, do more extensive checks */
 742                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 743                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 744                                 return &platforms[WLHDD];
 745                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 746                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 747                                 return &platforms[WL300G];
 748                 }
 749                 /* Sitecom WL-105b */
 750                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 751                         return &platforms[WL105B];
 752
 753                 /* unknown asus stuff, probably bcm4702 */
 754                 if (startswith(boardnum, "asusX"))
 755                         return &platforms[ASUS_4702];
 756         }
 757
 758         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 759                 if (startswith(boardtype, "bcm94710ap"))
 760                         return &platforms[BUFFALO_UNKNOWN_4710];
 761                 else
 762                         return &platforms[BUFFALO_UNKNOWN];
 763         }
 764
 765         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 766                 startswith(getvar("CFEver"), "MotoWRv3") ||
 767                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 768
 769                 return &platforms[WR850GV2V3];
 770         }
 771
 772         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 773                 return &platforms[TEW411BRPP];
 774         }
 775
 776         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 777                 return &platforms[STI_NAS];
 778
 779         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 780                 return &platforms[DWL3150];
 781
 782         /* not found */
 783         return NULL;
 784 }
 785
 786 static void register_buttons(struct button_t *b)
 787 {
 788         for (; b->name; b++)
 789                 platform.button_mask |= b->gpio;
 790
 791         platform.button_mask &= ~gpiomask;
 792
 793         gpio_outen(platform.button_mask, 0);
 794         gpio_control(platform.button_mask, 0);
 795         platform.button_polarity = gpio_in() & platform.button_mask;
 796         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 797         gpio_intmask(platform.button_mask, platform.button_mask);
 798
 799         gpio_set_irqenable(1, button_handler);
 800 }
 801
 802 static void unregister_buttons(struct button_t *b)
 803 {
 804         gpio_intmask(platform.button_mask, 0);
 805
 806         gpio_set_irqenable(0, button_handler);
 807 }
 808
 809
 810 #ifndef LINUX_2_4
 811 static void add_msg(struct event_t *event, char *msg, int argv)
 812 {
 813         char *s;
 814
 815         if (argv)
 816                 return;
 817
 818         s = skb_put(event->skb, strlen(msg) + 1);
 819         strcpy(s, msg);
 820 }
 821
 822 static void hotplug_button(struct work_struct *work)
 823 {
 824         struct event_t *event = container_of(work, struct event_t, wq);
 825         char *s;
 826
 827         if (!uevent_sock)
 828                 return;
 829
 830         event->skb = alloc_skb(2048, GFP_KERNEL);
 831
 832         s = skb_put(event->skb, strlen(event->action) + 2);
 833         sprintf(s, "%s@", event->action);
 834         fill_event(event);
 835
 836         NETLINK_CB(event->skb).dst_group = 1;
 837         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 838
 839         kfree(event);
 840 }
 841
 842 #else /* !LINUX_2_4 */
 843 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 844 {
 845         char *p;
 846
 847         p = kmalloc(size, gfp);
 848         if (p == NULL)
 849                 return NULL;
 850
 851         memset(p, 0, size);
 852
 853         return p;
 854 }
 855
 856 static void add_msg(struct event_t *event, char *msg, int argv)
 857 {
 858         if (argv)
 859                 event->argv[event->anr++] = event->scratch;
 860         else
 861                 event->envp[event->enr++] = event->scratch;
 862
 863         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
 864 }
 865
 866 static void hotplug_button(struct event_t *event)
 867 {
 868         char *scratch = kzalloc(256, GFP_KERNEL);
 869         event->scratch = scratch;
 870
 871         add_msg(event, hotplug_path, 1);
 872         add_msg(event, "button", 1);
 873         fill_event(event);
 874         call_usermodehelper (event->argv[0], event->argv, event->envp);
 875         kfree(scratch);
 876         kfree(event);
 877 }
 878 #endif /* !LINUX_2_4 */
 879
 880 static int fill_event (struct event_t *event)
 881 {
 882         static char buf[128];
 883
 884         add_msg(event, "HOME=/", 0);
 885         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
 886         add_msg(event, "SUBSYSTEM=button", 0);
 887         snprintf(buf, 128, "ACTION=%s", event->action);
 888         add_msg(event, buf, 0);
 889         snprintf(buf, 128, "BUTTON=%s", event->name);
 890         add_msg(event, buf, 0);
 891         snprintf(buf, 128, "SEEN=%ld", event->seen);
 892         add_msg(event, buf, 0);
 893 #ifndef LINUX_2_4
 894         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
 895         add_msg(event, buf, 0);
 896 #endif
 897
 898         return 0;
 899 }
 900
 901
 902 #ifndef LINUX_2_4
 903 static irqreturn_t button_handler(int irq, void *dev_id)
 904 #else
 905 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 906 #endif
 907 {
 908         struct button_t *b;
 909         u32 in, changed;
 910
 911         in = gpio_in() & platform.button_mask;
 912         gpio_intpolarity(platform.button_mask, in);
 913         changed = platform.button_polarity ^ in;
 914         platform.button_polarity = in;
 915
 916         changed &= ~gpio_outen(0, 0);
 917
 918         for (b = platform.buttons; b->name; b++) {
 919                 struct event_t *event;
 920
 921                 if (!(b->gpio & changed)) continue;
 922
 923                 b->pressed ^= 1;
 924
 925                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 926                         event->seen = (jiffies - b->seen)/HZ;
 927                         event->name = b->name;
 928                         event->action = b->pressed ? "pressed" : "released";
 929 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
 930                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
 931 #else
 932                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 933 #endif
 934                         schedule_work(&event->wq);
 935                 }
 936
 937                 b->seen = jiffies;
 938         }
 939         return IRQ_HANDLED;
 940 }
 941
 942 static void register_leds(struct led_t *l)
 943 {
 944         struct proc_dir_entry *p;
 945         u32 mask = 0;
 946         u32 oe_mask = 0;
 947         u32 val = 0;
 948
 949         leds = proc_mkdir("led", diag);
 950         if (!leds)
 951                 return;
 952
 953         for(; l->name; l++) {
 954                 if (l->gpio & gpiomask)
 955                         continue;
 956
 957                 if (l->gpio & GPIO_TYPE_EXTIF) {
 958                         l->state = 0;
 959                         set_led_extif(l);
 960                 } else {
 961                         if (l->polarity != INPUT) oe_mask != l->gpio;
 962                         mask |= l->gpio;
 963                         val |= (l->polarity == NORMAL)?0:l->gpio;
 964                 }
 965
 966                 if (l->polarity == INPUT) continue;
 967
 968                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 969                         l->proc.type = PROC_LED;
 970                         l->proc.ptr = l;
 971                         p->data = (void *) &l->proc;
 972                         p->proc_fops = &diag_proc_fops;
 973                 }
 974         }
 975
 976         gpio_outen(mask, oe_mask);
 977         gpio_control(mask, 0);
 978         gpio_out(mask, val);
 979 }
 980
 981 static void unregister_leds(struct led_t *l)
 982 {
 983         for(; l->name; l++)
 984                 remove_proc_entry(l->name, leds);
 985
 986         remove_proc_entry("led", diag);
 987 }
 988
 989 static void set_led_extif(struct led_t *led)
 990 {
 991         gpio_set_extif(led->gpio, led->state);
 992 }
 993
 994 static void led_flash(unsigned long dummy) {
 995         struct led_t *l;
 996         u32 mask = 0;
 997         u8 extif_blink = 0;
 998
 999         for (l = platform.leds; l->name; l++) {
1000                 if (l->flash) {
1001                         if (l->gpio & GPIO_TYPE_EXTIF) {
1002                                 extif_blink = 1;
1003                                 l->state = !l->state;
1004                                 set_led_extif(l);
1005                         } else {
1006                                 mask |= l->gpio;
1007                         }
1008                 }
1009         }
1010
1011         mask &= ~gpiomask;
1012         if (mask) {
1013                 u32 val = ~gpio_in();
1014
1015                 gpio_outen(mask, mask);
1016                 gpio_control(mask, 0);
1017                 gpio_out(mask, val);
1018         }
1019         if (mask || extif_blink) {
1020                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1021         }
1022 }
1023
1024 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1025 {
1026 #ifdef LINUX_2_4
1027         struct inode *inode = file->f_dentry->d_inode;
1028         struct proc_dir_entry *dent = inode->u.generic_ip;
1029 #else
1030         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1031 #endif
1032         char *page;
1033         int len = 0;
1034
1035         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1036                 return -ENOBUFS;
1037
1038         if (dent->data != NULL) {
1039                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1040                 switch (handler->type) {
1041                         case PROC_LED: {
1042                                 struct led_t * led = (struct led_t *) handler->ptr;
1043                                 if (led->flash) {
1044                                         len = sprintf(page, "f\n");
1045                                 } else {
1046                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1047                                                 len = sprintf(page, "%d\n", led->state);
1048                                         } else {
1049                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1050                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1051                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1052                                         }
1053                                 }
1054                                 break;
1055                         }
1056                         case PROC_MODEL:
1057                                 len = sprintf(page, "%s\n", platform.name);
1058                                 break;
1059                         case PROC_GPIOMASK:
1060                                 len = sprintf(page, "0x%04x\n", gpiomask);
1061                                 break;
1062                 }
1063         }
1064         len += 1;
1065
1066         if (*ppos < len) {
1067                 len = min_t(int, len - *ppos, count);
1068                 if (copy_to_user(buf, (page + *ppos), len)) {
1069                         kfree(page);
1070                         return -EFAULT;
1071                 }
1072                 *ppos += len;
1073         } else {
1074                 len = 0;
1075         }
1076
1077         kfree(page);
1078         return len;
1079 }
1080
1081
1082 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1083 {
1084 #ifdef LINUX_2_4
1085         struct inode *inode = file->f_dentry->d_inode;
1086         struct proc_dir_entry *dent = inode->u.generic_ip;
1087 #else
1088         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1089 #endif
1090         char *page;
1091         int ret = -EINVAL;
1092
1093         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1094                 return -ENOBUFS;
1095
1096         if (copy_from_user(page, buf, count)) {
1097                 kfree(page);
1098                 return -EINVAL;
1099         }
1100         page[count] = 0;
1101
1102         if (dent->data != NULL) {
1103                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1104                 switch (handler->type) {
1105                         case PROC_LED: {
1106                                 struct led_t *led = (struct led_t *) handler->ptr;
1107                                 int p = (led->polarity == NORMAL ? 0 : 1);
1108
1109                                 if (page[0] == 'f') {
1110                                         led->flash = 1;
1111                                         led_flash(0);
1112                                 } else {
1113                                         led->flash = 0;
1114                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1115                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1116                                                 set_led_extif(led);
1117                                         } else {
1118                                                 gpio_outen(led->gpio, led->gpio);
1119                                                 gpio_control(led->gpio, 0);
1120                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1121                                         }
1122                                 }
1123                                 break;
1124                         }
1125                         case PROC_GPIOMASK:
1126                                 gpiomask = simple_strtoul(page, NULL, 0);
1127
1128                                 if (platform.buttons) {
1129                                         unregister_buttons(platform.buttons);
1130                                         register_buttons(platform.buttons);
1131                                 }
1132
1133                                 if (platform.leds) {
1134                                         unregister_leds(platform.leds);
1135                                         register_leds(platform.leds);
1136                                 }
1137                                 break;
1138                 }
1139                 ret = count;
1140         }
1141
1142         kfree(page);
1143         return ret;
1144 }
1145
1146 static int __init diag_init(void)
1147 {
1148         static struct proc_dir_entry *p;
1149         static struct platform_t *detected;
1150
1151         detected = platform_detect();
1152         if (!detected) {
1153                 printk(MODULE_NAME ": Router model not detected.\n");
1154                 return -ENODEV;
1155         }
1156         memcpy(&platform, detected, sizeof(struct platform_t));
1157
1158         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1159         if (platform.platform_init != NULL) {
1160                 platform.platform_init();
1161         }
1162
1163         if (!(diag = proc_mkdir("diag", NULL))) {
1164                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1165                 return -EINVAL;
1166         }
1167
1168         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1169                 p->data = (void *) &proc_model;
1170                 p->proc_fops = &diag_proc_fops;
1171         }
1172
1173         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1174                 p->data = (void *) &proc_gpiomask;
1175                 p->proc_fops = &diag_proc_fops;
1176         }
1177
1178         if (platform.buttons)
1179                 register_buttons(platform.buttons);
1180
1181         if (platform.leds)
1182                 register_leds(platform.leds);
1183
1184         return 0;
1185 }
1186
1187 static void __exit diag_exit(void)
1188 {
1189         del_timer(&led_timer);
1190
1191         if (platform.buttons)
1192                 unregister_buttons(platform.buttons);
1193
1194         if (platform.leds)
1195                 unregister_leds(platform.leds);
1196
1197         remove_proc_entry("model", diag);
1198         remove_proc_entry("gpiomask", diag);
1199         remove_proc_entry("diag", NULL);
1200 }
1201
1202 module_init(diag_init);
1203 module_exit(diag_exit);
1204
1205 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1206 MODULE_LICENSE("GPL");