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  */
  23 #include <linux/module.h>
  24 #include <linux/pci.h>
  25 #include <linux/kmod.h>
  26 #include <linux/proc_fs.h>
  27 #include <linux/timer.h>
  28 #include <linux/version.h>
  29 #include <asm/uaccess.h>
  30
  31 #ifndef LINUX_2_4
  32 #include <linux/workqueue.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/netlink.h>
  35 #include <net/sock.h>
  36 extern struct sock *uevent_sock;
  37 extern u64 uevent_next_seqnum(void);
  38 #else
  39 #include <linux/tqueue.h>
  40 #define INIT_WORK INIT_TQUEUE
  41 #define schedule_work schedule_task
  42 #define work_struct tq_struct
  43 #endif
  44
  45 #include "gpio.h"
  46 #include "diag.h"
  47 #define getvar(str) (nvram_get(str)?:"")
  48
  49 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  50 static int fill_event(struct event_t *);
  51 static unsigned int gpiomask = 0;
  52 module_param(gpiomask, int, 0644);
  53
  54 enum {
  55         /* Linksys */
  56         WAP54GV1,
  57         WAP54GV2,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT160N,
  64         WRT350N,
  65         WRT600N,
  66         WRT600NV11,
  67
  68         /* ASUS */
  69         WLHDD,
  70         WL300G,
  71         WL320GE,
  72         WL330GE,
  73         WL500G,
  74         WL500GD,
  75         WL500GP,
  76         WL500GPV2,
  77         WL500W,
  78         WL520GC,
  79         WL520GU,
  80         ASUS_4702,
  81         WL700GE,
  82
  83         /* Buffalo */
  84         WBR2_G54,
  85         WHR_G54S,
  86         WHR_HP_G54,
  87         WHR_G125,
  88         WHR2_A54G54,
  89         WLA2_G54L,
  90         WZR_G300N,
  91         WZR_RS_G54,
  92         WZR_RS_G54HP,
  93         BUFFALO_UNKNOWN,
  94         BUFFALO_UNKNOWN_4710,
  95
  96         /* Siemens */
  97         SE505V1,
  98         SE505V2,
  99
 100         /* US Robotics */
 101         USR5461,
 102
 103         /* Dell */
 104         TM2300,
 105         TM2300V2,
 106
 107         /* Motorola */
 108         WE800G,
 109         WR850GV1,
 110         WR850GV2V3,
 111         WR850GP,
 112
 113         /* Belkin */
 114         BELKIN_UNKNOWN,
 115
 116         /* Netgear */
 117         WGT634U,
 118
 119         /* Trendware */
 120         TEW411BRPP,
 121
 122         /* SimpleTech */
 123         STI_NAS,
 124
 125         /* D-Link */
 126         DIR130,
 127         DIR320,
 128         DIR330,
 129         DWL3150,
 130
 131         /* Sitecom */
 132         WL105B,
 133 };
 134
 135 static void __init bcm4780_init(void) {
 136                 int pin = 1 << 3;
 137
 138                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 139                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 140                 gpio_outen(pin, pin);
 141                 gpio_control(pin, 0);
 142                 gpio_out(pin, pin);
 143
 144                 /* Wait 5s, so the HDD can spin up */
 145                 set_current_state(TASK_INTERRUPTIBLE);
 146                 schedule_timeout(HZ * 5);
 147 }
 148
 149 static void __init bcm57xx_init(void) {
 150         int pin = 1 << 2;
 151
 152 #ifndef LINUX_2_4
 153         /* FIXME: switch comes up, but port mappings/vlans not right */
 154         gpio_outen(pin, pin);
 155         gpio_control(pin, 0);
 156         gpio_out(pin, pin);
 157 #endif
 158 }
 159
 160 static struct platform_t __initdata platforms[] = {
 161         /* Linksys */
 162         [WAP54GV1] = {
 163                 .name           = "Linksys WAP54G V1",
 164                 .buttons        = {
 165                         { .name = "reset",      .gpio = 1 << 0 },
 166                 },
 167                 .leds           = {
 168                         { .name = "diag",       .gpio = 1 << 3 },
 169                         { .name = "wlan",       .gpio = 1 << 4 },
 170                 },
 171         },
 172         [WAP54GV2] = {
 173                 .name           = "Linksys WAP54G V2",
 174                 .buttons        = {
 175                         { .name = "reset",      .gpio = 1 << 0 },
 176                 },
 177                 .leds           = {
 178                         { .name = "wlan",       .gpio = 1 << 5, .polarity = REVERSE },
 179                         /* GPIO 6 is b44 (eth0, LAN) PHY power */
 180                 },
 181         },
 182         [WAP54GV3] = {
 183                 .name           = "Linksys WAP54G V3",
 184                 .buttons        = {
 185                         /* FIXME: verify this */
 186                         { .name = "reset",      .gpio = 1 << 7 },
 187                         { .name = "ses",        .gpio = 1 << 0 },
 188                 },
 189                 .leds           = {
 190                         /* FIXME: diag? */
 191                         { .name = "ses",        .gpio = 1 << 1 },
 192                 },
 193         },
 194         [WRT54GV1] = {
 195                 .name           = "Linksys WRT54G V1.x",
 196                 .buttons        = {
 197                         { .name = "reset",      .gpio = 1 << 6 },
 198                 },
 199                 .leds           = {
 200                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 201                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 202                 },
 203         },
 204         [WRT54G] = {
 205                 .name           = "Linksys WRT54G/GS/GL",
 206                 .buttons        = {
 207                         { .name = "reset",      .gpio = 1 << 6 },
 208                         { .name = "ses",        .gpio = 1 << 4 },
 209                 },
 210                 .leds           = {
 211                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 212                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 213                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 214                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 215                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 216                 },
 217         },
 218         [WRTSL54GS] = {
 219                 .name           = "Linksys WRTSL54GS",
 220                 .buttons        = {
 221                         { .name = "reset",      .gpio = 1 << 6 },
 222                         { .name = "ses",        .gpio = 1 << 4 },
 223                 },
 224                 .leds           = {
 225                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 226                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 227                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 228                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 229                 },
 230         },
 231         [WRT54G3G] = {
 232                 .name           = "Linksys WRT54G3G",
 233                 .buttons        = {
 234                         { .name = "reset",      .gpio = 1 << 6 },
 235                         { .name = "3g",         .gpio = 1 << 4 },
 236                 },
 237                 .leds           = {
 238                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 239                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 240                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 241                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 242                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 243                 },
 244         },
 245         [WRT160N] = {
 246                 .name           = "Linksys WRT160N",
 247                 .buttons        = {
 248                         { .name = "reset",      .gpio = 1 << 6 },
 249                         { .name = "ses",        .gpio = 1 << 4 },
 250                 },
 251                 .leds           = {
 252                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 253                         { .name = "ses_blue",   .gpio = 1 << 5, .polarity = REVERSE },
 254                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 255                 },
 256         },
 257         [WRT350N] = {
 258                 .name           = "Linksys WRT350N",
 259                 .buttons        = {
 260                         { .name = "reset",      .gpio = 1 << 6 },
 261                         { .name = "ses",        .gpio = 1 << 8 },
 262                 },
 263                 .leds           = {
 264                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 265                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 266                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 267                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 268                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 269                 },
 270                 .platform_init = bcm57xx_init,
 271         },
 272         [WRT600N] = {
 273                 .name           = "Linksys WRT600N",
 274                 .buttons        = {
 275                         { .name = "reset",      .gpio = 1 << 6 },
 276                         { .name = "ses",        .gpio = 1 << 7 },
 277                 },
 278                 .leds           = {
 279                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 280                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 281                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 282                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 283                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 284                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 285                 },
 286                 .platform_init = bcm57xx_init,
 287         },
 288         [WRT600NV11] = {
 289                 .name           = "Linksys WRT600N V1.1",
 290                 .buttons        = {
 291                         { .name = "reset",      .gpio = 1 << 6 },
 292                         { .name = "ses",        .gpio = 1 << 7 },
 293                 },
 294                 .leds           = {
 295                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 296                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 297                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 298                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 299                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 300                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 301                 },
 302                 .platform_init = bcm57xx_init,
 303         },
 304         /* Asus */
 305         [WLHDD] = {
 306                 .name           = "ASUS WL-HDD",
 307                 .buttons        = {
 308                         { .name = "reset",      .gpio = 1 << 6 },
 309                 },
 310                 .leds           = {
 311                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 312                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 313                 },
 314         },
 315         [WL300G] = {
 316                 .name           = "ASUS WL-300g",
 317                 .buttons        = {
 318                         { .name = "reset",      .gpio = 1 << 6 },
 319                 },
 320                 .leds           = {
 321                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 322                 },
 323         },
 324         [WL320GE] = {
 325                 .name           = "ASUS WL-320gE/WL-320gP",
 326                 .buttons        = {
 327                         { .name = "reset",      .gpio = 1 << 6 },
 328                 },
 329                 .leds           = {
 330                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 331                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 332                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 333                 },
 334         },
 335         [WL330GE] = {
 336                 .name           = "ASUS WL-330gE",
 337                 .buttons        = {
 338                         { .name = "reset",      .gpio = 1 << 2 },
 339                 },
 340                 .leds           = {
 341                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 342                 },
 343         },
 344         [WL500G] = {
 345                 .name           = "ASUS WL-500g",
 346                 .buttons        = {
 347                         { .name = "reset",      .gpio = 1 << 6 },
 348                 },
 349                 .leds           = {
 350                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 351                 },
 352         },
 353         [WL500GD] = {
 354                 .name           = "ASUS WL-500g Deluxe",
 355                 .buttons        = {
 356                         { .name = "reset",      .gpio = 1 << 6 },
 357                 },
 358                 .leds           = {
 359                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 360                 },
 361         },
 362         [WL500GP] = {
 363                 .name           = "ASUS WL-500g Premium",
 364                 .buttons        = {
 365                         { .name = "reset",      .gpio = 1 << 0 },
 366                         { .name = "ses",        .gpio = 1 << 4 },
 367                 },
 368                 .leds           = {
 369                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 370                 },
 371         },
 372         [WL500GPV2] = {
 373                 .name           = "ASUS WL-500g Premium V2",
 374                 .buttons        = {
 375                         { .name = "reset",      .gpio = 1 << 2 },
 376                         { .name = "ses",        .gpio = 1 << 3 },
 377                 },
 378                 .leds           = {
 379                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 380                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 381                 },
 382         },
 383         [WL500W] = {
 384                 .name           = "ASUS WL-500W",
 385                 .buttons        = {
 386                         { .name = "reset",      .gpio = 1 << 6 },
 387                         { .name = "ses",        .gpio = 1 << 7 },
 388                 },
 389                 .leds           = {
 390                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 391                 },
 392         },
 393         [WL520GC] = {
 394                 .name           = "ASUS WL-520GC",
 395                 .buttons        = {
 396                         { .name = "reset",      .gpio = 1 << 2 },
 397                         { .name = "ses",        .gpio = 1 << 3 },
 398                 },
 399                 .leds           = {
 400                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 401                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 402                 },
 403         },
 404         [WL520GU] = {
 405                 .name           = "ASUS WL-520gU",
 406                 .buttons        = {
 407                         { .name = "reset",      .gpio = 1 << 2 },
 408                         { .name = "ses",        .gpio = 1 << 3 },
 409                 },
 410                 .leds           = {
 411                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 412                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 413                 },
 414         },
 415         [ASUS_4702] = {
 416                 .name           = "ASUS (unknown, BCM4702)",
 417                 .buttons        = {
 418                         { .name = "reset",      .gpio = 1 << 6 },
 419                 },
 420                 .leds           = {
 421                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 422                 },
 423         },
 424         [WL700GE] = {
 425                 .name           = "ASUS WL-700gE",
 426                 .buttons        = {
 427                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 428                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 429                         { .name = "power",      .gpio = 1 << 0 }, // on front
 430                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 431                 },
 432                 .leds           = {
 433 #if 0
 434                         // GPIO that controls power led also enables/disables some essential functions
 435                         // - power to HDD
 436                         // - switch leds
 437                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 438 #endif
 439                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 440                 },
 441                 .platform_init = bcm4780_init,
 442         },
 443         /* Buffalo */
 444         [WHR_G54S] = {
 445                 .name           = "Buffalo WHR-G54S",
 446                 .buttons        = {
 447                         { .name = "reset",      .gpio = 1 << 4 },
 448                         { .name = "bridge",     .gpio = 1 << 5 },
 449                         { .name = "ses",        .gpio = 1 << 0 },
 450                 },
 451                 .leds           = {
 452                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 453                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 454                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 455                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 456                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 457                 },
 458         },
 459         [WBR2_G54] = {
 460                 .name           = "Buffalo WBR2-G54",
 461                 /* FIXME: verify */
 462                 .buttons        = {
 463                         { .name = "reset",      .gpio = 1 << 7 },
 464                 },
 465                 .leds           = {
 466                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 467                 },
 468         },
 469         [WHR_HP_G54] = {
 470                 .name           = "Buffalo WHR-HP-G54",
 471                 .buttons        = {
 472                         { .name = "reset",      .gpio = 1 << 4 },
 473                         { .name = "bridge",     .gpio = 1 << 5 },
 474                         { .name = "ses",        .gpio = 1 << 0 },
 475                 },
 476                 .leds           = {
 477                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 478                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 479                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 480                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 481                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 482                 },
 483         },
 484         [WHR_G125] = {
 485                 .name           = "Buffalo WHR-G125",
 486                 .buttons        = {
 487                         { .name = "reset",      .gpio = 1 << 4 },
 488                         { .name = "bridge",     .gpio = 1 << 5 },
 489                         { .name = "ses",        .gpio = 1 << 0 },
 490                 },
 491                 .leds           = {
 492                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 493                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 494                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 495                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 496                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 497                 },
 498         },
 499         [WHR2_A54G54] = {
 500                 .name           = "Buffalo WHR2-A54G54",
 501                 .buttons        = {
 502                         { .name = "reset",      .gpio = 1 << 4 },
 503                 },
 504                 .leds           = {
 505                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 506                 },
 507         },
 508         [WLA2_G54L] = {
 509                 .name           = "Buffalo WLA2-G54L",
 510                 /* FIXME: verify */
 511                 .buttons        = {
 512                         { .name = "reset",      .gpio = 1 << 7 },
 513                 },
 514                 .leds           = {
 515                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 516                 },
 517         },
 518         [WZR_G300N] = {
 519                 .name           = "Buffalo WZR-G300N",
 520                 .buttons        = {
 521                         { .name = "reset",      .gpio = 1 << 4 },
 522                 },
 523                 .leds           = {
 524                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 525                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 526                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 527                 },
 528         },
 529         [WZR_RS_G54] = {
 530                 .name           = "Buffalo WZR-RS-G54",
 531                 .buttons        = {
 532                         { .name = "ses",        .gpio = 1 << 0 },
 533                         { .name = "reset",      .gpio = 1 << 4 },
 534                 },
 535                 .leds           = {
 536                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 537                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 538                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 539                 },
 540         },
 541         [WZR_RS_G54HP] = {
 542                 .name           = "Buffalo WZR-RS-G54HP",
 543                 .buttons        = {
 544                         { .name = "ses",        .gpio = 1 << 0 },
 545                         { .name = "reset",      .gpio = 1 << 4 },
 546                 },
 547                 .leds           = {
 548                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 549                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 550                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 551                 },
 552         },
 553         [BUFFALO_UNKNOWN] = {
 554                 .name           = "Buffalo (unknown)",
 555                 .buttons        = {
 556                         { .name = "reset",      .gpio = 1 << 7 },
 557                 },
 558                 .leds           = {
 559                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 560                 },
 561         },
 562         [BUFFALO_UNKNOWN_4710] = {
 563                 .name           = "Buffalo (unknown, BCM4710)",
 564                 .buttons        = {
 565                         { .name = "reset",      .gpio = 1 << 4 },
 566                 },
 567                 .leds           = {
 568                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 569                 },
 570         },
 571         /* Siemens */
 572         [SE505V1] = {
 573                 .name           = "Siemens SE505 V1",
 574                 .buttons        = {
 575                         /* No usable buttons */
 576                 },
 577                 .leds           = {
 578 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 579                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 580                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 581                 },
 582         },
 583         [SE505V2] = {
 584                 .name           = "Siemens SE505 V2",
 585                 .buttons        = {
 586                         /* No usable buttons */
 587                 },
 588                 .leds           = {
 589                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 590                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 591                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 592                 },
 593         },
 594         /* US Robotics */
 595         [USR5461] = {
 596                 .name           = "U.S. Robotics USR5461",
 597                 .buttons        = {
 598                         /* No usable buttons */
 599                 },
 600                 .leds           = {
 601                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 602                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 603                 },
 604         },
 605         /* Dell */
 606         [TM2300] = {
 607                 .name           = "Dell TrueMobile 2300",
 608                 .buttons        = {
 609                         { .name = "reset",      .gpio = 1 << 0 },
 610                 },
 611                 .leds           = {
 612                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 613                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 614                 },
 615         },
 616         [TM2300V2] = {
 617                 .name           = "Dell TrueMobile 2300 v2",
 618                 .buttons        = {
 619                         { .name = "reset",      .gpio = 1 << 0 },
 620                 },
 621                 .leds           = {
 622                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 623                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 624                 },
 625         },
 626         /* Motorola */
 627         [WE800G] = {
 628                 .name           = "Motorola WE800G",
 629                 .buttons        = {
 630                         { .name = "reset",      .gpio = 1 << 0 },
 631                 },
 632                 .leds           = {
 633                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 634                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 635                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 636                 },
 637         },
 638         [WR850GV1] = {
 639                 .name           = "Motorola WR850G V1",
 640                 .buttons        = {
 641                         { .name = "reset",      .gpio = 1 << 0 },
 642                 },
 643                 .leds           = {
 644                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 645                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 646                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 647                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 648                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 649                 },
 650         },
 651         [WR850GV2V3] = {
 652                 .name           = "Motorola WR850G V2/V3",
 653                 .buttons        = {
 654                         { .name = "reset",      .gpio = 1 << 5 },
 655                 },
 656                 .leds           = {
 657                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 658                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 659                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 660                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 661                 },
 662         },
 663         [WR850GP] = {
 664                 .name           = "Motorola WR850GP",
 665                 .buttons        = {
 666                         { .name = "reset",      .gpio = 1 << 5 },
 667                 },
 668                 .leds           = {
 669                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 670                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 671                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 672                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 673                 },
 674         },
 675
 676         /* Belkin */
 677         [BELKIN_UNKNOWN] = {
 678                 .name           = "Belkin (unknown)",
 679                 /* FIXME: verify & add detection */
 680                 .buttons        = {
 681                         { .name = "reset",      .gpio = 1 << 7 },
 682                 },
 683                 .leds           = {
 684                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 685                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 686                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 687                 },
 688         },
 689         /* Netgear */
 690         [WGT634U] = {
 691                 .name           = "Netgear WGT634U",
 692                 .buttons        = {
 693                         { .name = "reset",      .gpio = 1 << 2 },
 694                 },
 695                 .leds           = {
 696                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 697                 },
 698         },
 699         /* Trendware */
 700         [TEW411BRPP] = {
 701                 .name           = "Trendware TEW411BRP+",
 702                 .buttons        = {
 703                         { /* No usable buttons */ },
 704                 },
 705                 .leds           = {
 706                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 707                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 708                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 709                 },
 710         },
 711         /* SimpleTech */
 712         [STI_NAS] = {
 713                 .name      = "SimpleTech SimpleShare NAS",
 714                 .buttons        = {
 715                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 716                         { .name = "power",      .gpio = 1 << 0 }, // on back
 717                 },
 718                 .leds      = {
 719                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 720                 },
 721                 .platform_init = bcm4780_init,
 722         },
 723         /* D-Link */
 724         [DIR130] = {
 725                 .name     = "D-Link DIR-130",
 726                 .buttons        = {
 727                         { .name = "reset",      .gpio = 1 << 3},
 728                         { .name = "reserved",   .gpio = 1 << 7},
 729                 },
 730                 .leds      = {
 731                         { .name = "diag",       .gpio = 1 << 0},
 732                         { .name = "blue",       .gpio = 1 << 6},
 733                 },
 734         },
 735         [DIR320] = {
 736                 .name     = "D-Link DIR-320",
 737                 .buttons        = {
 738                         { .name = "reserved",   .gpio = 1 << 6},
 739                         { .name = "reset",      .gpio = 1 << 7},
 740                 },
 741                 .leds      = {
 742                         { .name = "wlan",       .gpio = 1 << 0, .polarity = NORMAL },
 743                         { .name = "diag",       .gpio = 1 << 1, .polarity = NORMAL }, /* "status led */
 744                         { .name = "red",        .gpio = 1 << 3, .polarity = REVERSE },
 745                         { .name = "blue",       .gpio = 1 << 4, .polarity = REVERSE },
 746                         { .name = "usb",        .gpio = 1 << 5, .polarity = NORMAL },
 747                 },
 748         },
 749         [DIR330] = {
 750                 .name     = "D-Link DIR-330",
 751                 .buttons        = {
 752                         { .name = "reset",      .gpio = 1 << 3},
 753                         { .name = "reserved",   .gpio = 1 << 7},
 754                 },
 755                 .leds      = {
 756                         { .name = "diag",       .gpio = 1 << 0},
 757                         { .name = "usb",        .gpio = 1 << 4},
 758                         { .name = "blue",       .gpio = 1 << 6},
 759                 },
 760         },
 761         [DWL3150] = {
 762                 .name   = "D-Link DWL-3150",
 763                 .buttons        = {
 764                         { .name = "reset",      .gpio = 1 << 7},
 765                 },
 766                 .leds     = {
 767                         { .name = "diag",       .gpio = 1 << 2},
 768                         { .name = "status",     .gpio = 1 << 1},
 769                 },
 770         },
 771         /* Double check */
 772         [WL105B] = {
 773                 .name   = "Sitecom WL-105b",
 774                 .buttons        = {
 775                         { .name = "reset",      .gpio = 1 << 10},
 776                 },
 777                 .leds     = {
 778                         { .name = "wlan",       .gpio = 1 << 4},
 779                         { .name = "power",      .gpio = 1 << 3},
 780                 },
 781         },
 782 };
 783
 784 static struct platform_t __init *platform_detect(void)
 785 {
 786         char *boardnum, *boardtype, *buf;
 787
 788         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 789                 return &platforms[WGT634U];
 790
 791         /* Look for a model identifier */
 792
 793         /* Based on "model_name" */
 794         if ((buf = nvram_get("model_name"))) {
 795                 if (!strcmp(buf, "DIR-130"))
 796                         return &platforms[DIR130];
 797                 if (!strcmp(buf, "DIR-330"))
 798                         return &platforms[DIR330];
 799         }
 800
 801         /* Based on "model_no" */
 802         if ((buf = nvram_get("model_no"))) {
 803                 if (startswith(buf,"WL700")) /* WL700* */
 804                         return &platforms[WL700GE];
 805         }
 806
 807         /* Based on "hardware_version" */
 808         if ((buf = nvram_get("hardware_version"))) {
 809                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 810                         return &platforms[WL500GPV2];
 811                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 812                         return &platforms[WL520GC];
 813                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 814                         return &platforms[WL520GU];
 815                 if (startswith(buf,"WL330GE-")) /* WL330GE-* */
 816                         return &platforms[WL330GE];
 817         }
 818
 819         /* Based on "ModelId" */
 820         if ((buf = nvram_get("ModelId"))) {
 821                 if (!strcmp(buf, "WR850GP"))
 822                         return &platforms[WR850GP];
 823                 if (!strcmp(buf, "WR850G"))
 824                         return &platforms[WR850GV2V3];
 825                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 826                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 827                 if (startswith(buf,"WE800G")) /* WE800G* */
 828                         return &platforms[WE800G];
 829         }
 830
 831         /* Buffalo */
 832         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 833                 /* Buffalo hardware, check id for specific hardware matches */
 834                 if (!strcmp(buf, "29bb0332"))
 835                         return &platforms[WBR2_G54];
 836                 if (!strcmp(buf, "29129"))
 837                         return &platforms[WLA2_G54L];
 838                 if (!strcmp(buf, "30189"))
 839                         return &platforms[WHR_HP_G54];
 840                 if (!strcmp(buf, "32093"))
 841                         return &platforms[WHR_G125];
 842                 if (!strcmp(buf, "30182"))
 843                         return &platforms[WHR_G54S];
 844                 if (!strcmp(buf, "290441dd"))
 845                         return &platforms[WHR2_A54G54];
 846                 if (!strcmp(buf, "31120"))
 847                         return &platforms[WZR_G300N];
 848                 if (!strcmp(buf, "30083"))
 849                         return &platforms[WZR_RS_G54];
 850                 if (!strcmp(buf, "30103"))
 851                         return &platforms[WZR_RS_G54HP];
 852         }
 853
 854         /* no easy model number, attempt to guess */
 855         boardnum = getvar("boardnum");
 856         boardtype = getvar("boardtype");
 857
 858         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 859                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 860                         return &platforms[WRT600NV11];
 861
 862         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 863                         return &platforms[WRT600N];
 864         }
 865
 866         if (startswith(getvar("pmon_ver"), "CFE")) {
 867                 /* CFE based - newer hardware */
 868                 if (!strcmp(boardnum, "42")) { /* Linksys */
 869                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 870                                 return &platforms[WRT350N];
 871
 872                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 873                                 return &platforms[WRT54G3G];
 874
 875                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 876                                 return &platforms[WRTSL54GS];
 877
 878                         if (!strcmp(boardtype, "0x0472"))
 879                                 return &platforms[WRT160N];
 880
 881                         /* default to WRT54G */
 882                         return &platforms[WRT54G];
 883                 }
 884                 if (!strcmp(boardnum, "1024") && !strcmp(boardtype, "0x0446"))
 885                         return &platforms[WAP54GV2];
 886
 887                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 888                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 889                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 890                 }
 891
 892                 if (!strcmp(boardnum, "45")) { /* ASUS */
 893                         if (!strcmp(boardtype,"0x042f"))
 894                                 return &platforms[WL500GP];
 895                         else if (!strcmp(boardtype,"0x0472"))
 896                                 return &platforms[WL500W];
 897                         else if (!strcmp(boardtype,"0x467"))
 898                                 return &platforms[WL320GE];
 899                         else
 900                                 return &platforms[WL500GD];
 901                 }
 902
 903                 if (!strcmp(boardnum, "10496"))
 904                         return &platforms[USR5461];
 905
 906                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 907                         return &platforms[SE505V2];
 908
 909                 if (!strcmp(boardtype, "0x048e") && !strcmp(getvar("boardrev"),"0x35") &&
 910                                 !strcmp(getvar("boardflags"), "0x750")) /* D-Link DIR-320 */
 911                         return &platforms[DIR320];
 912
 913         } else { /* PMON based - old stuff */
 914                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 915                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 916                         return &platforms[WR850GV1];
 917                 }
 918                 if (startswith(boardtype, "bcm94710dev")) {
 919                         if (!strcmp(boardnum, "42"))
 920                                 return &platforms[WRT54GV1];
 921                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 922                                 return &platforms[WAP54GV1];
 923                 }
 924                 if (startswith(getvar("hardware_version"), "WL500-"))
 925                         return &platforms[WL500G];
 926                 if (startswith(getvar("hardware_version"), "WL300-")) {
 927                         /* Either WL-300g or WL-HDD, do more extensive checks */
 928                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 929                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 930                                 return &platforms[WLHDD];
 931                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 932                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 933                                 return &platforms[WL300G];
 934                 }
 935                 /* Sitecom WL-105b */
 936                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 937                         return &platforms[WL105B];
 938
 939                 /* unknown asus stuff, probably bcm4702 */
 940                 if (startswith(boardnum, "asusX"))
 941                         return &platforms[ASUS_4702];
 942         }
 943
 944         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 945                 if (startswith(boardtype, "bcm94710ap"))
 946                         return &platforms[BUFFALO_UNKNOWN_4710];
 947                 else
 948                         return &platforms[BUFFALO_UNKNOWN];
 949         }
 950
 951         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 952                 startswith(getvar("CFEver"), "MotoWRv3") ||
 953                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 954
 955                 return &platforms[WR850GV2V3];
 956         }
 957
 958         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 959                 return &platforms[TEW411BRPP];
 960         }
 961
 962         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 963                 return &platforms[STI_NAS];
 964
 965         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 966                 return &platforms[DWL3150];
 967
 968         /* not found */
 969         return NULL;
 970 }
 971
 972 static void register_buttons(struct button_t *b)
 973 {
 974         for (; b->name; b++)
 975                 platform.button_mask |= b->gpio;
 976
 977         platform.button_mask &= ~gpiomask;
 978
 979         gpio_outen(platform.button_mask, 0);
 980         gpio_control(platform.button_mask, 0);
 981         platform.button_polarity = gpio_in() & platform.button_mask;
 982         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 983         gpio_setintmask(platform.button_mask, platform.button_mask);
 984
 985         gpio_set_irqenable(1, button_handler);
 986 }
 987
 988 static void unregister_buttons(struct button_t *b)
 989 {
 990         gpio_setintmask(platform.button_mask, 0);
 991
 992         gpio_set_irqenable(0, button_handler);
 993 }
 994
 995
 996 #ifndef LINUX_2_4
 997 static void add_msg(struct event_t *event, char *msg, int argv)
 998 {
 999         char *s;
1000
1001         if (argv)
1002                 return;
1003
1004         s = skb_put(event->skb, strlen(msg) + 1);
1005         strcpy(s, msg);
1006 }
1007
1008 static void hotplug_button(struct work_struct *work)
1009 {
1010         struct event_t *event = container_of(work, struct event_t, wq);
1011         char *s;
1012
1013         if (!uevent_sock)
1014                 return;
1015
1016         event->skb = alloc_skb(2048, GFP_KERNEL);
1017
1018         s = skb_put(event->skb, strlen(event->action) + 2);
1019         sprintf(s, "%s@", event->action);
1020         fill_event(event);
1021
1022         NETLINK_CB(event->skb).dst_group = 1;
1023         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
1024
1025         kfree(event);
1026 }
1027
1028 #else /* !LINUX_2_4 */
1029 static inline char *kzalloc(unsigned int size, unsigned int gfp)
1030 {
1031         char *p;
1032
1033         p = kmalloc(size, gfp);
1034         if (p == NULL)
1035                 return NULL;
1036
1037         memset(p, 0, size);
1038
1039         return p;
1040 }
1041
1042 static void add_msg(struct event_t *event, char *msg, int argv)
1043 {
1044         if (argv)
1045                 event->argv[event->anr++] = event->scratch;
1046         else
1047                 event->envp[event->enr++] = event->scratch;
1048
1049         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
1050 }
1051
1052 static void hotplug_button(struct event_t *event)
1053 {
1054         char *scratch = kzalloc(256, GFP_KERNEL);
1055         event->scratch = scratch;
1056
1057         add_msg(event, hotplug_path, 1);
1058         add_msg(event, "button", 1);
1059         fill_event(event);
1060         call_usermodehelper (event->argv[0], event->argv, event->envp);
1061         kfree(scratch);
1062         kfree(event);
1063 }
1064 #endif /* !LINUX_2_4 */
1065
1066 static int fill_event (struct event_t *event)
1067 {
1068         static char buf[128];
1069
1070         add_msg(event, "HOME=/", 0);
1071         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1072         add_msg(event, "SUBSYSTEM=button", 0);
1073         snprintf(buf, 128, "ACTION=%s", event->action);
1074         add_msg(event, buf, 0);
1075         snprintf(buf, 128, "BUTTON=%s", event->name);
1076         add_msg(event, buf, 0);
1077         snprintf(buf, 128, "SEEN=%ld", event->seen);
1078         add_msg(event, buf, 0);
1079 #ifndef LINUX_2_4
1080         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1081         add_msg(event, buf, 0);
1082 #endif
1083
1084         return 0;
1085 }
1086
1087
1088 #ifndef LINUX_2_4
1089 static irqreturn_t button_handler(int irq, void *dev_id)
1090 #else
1091 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1092 #endif
1093 {
1094         struct button_t *b;
1095         u32 in, changed;
1096
1097         in = gpio_in() & platform.button_mask;
1098         gpio_intpolarity(platform.button_mask, in);
1099         changed = platform.button_polarity ^ in;
1100         platform.button_polarity = in;
1101
1102         changed &= ~gpio_outen(0, 0);
1103
1104         for (b = platform.buttons; b->name; b++) {
1105                 struct event_t *event;
1106
1107                 if (!(b->gpio & changed)) continue;
1108
1109                 b->pressed ^= 1;
1110
1111                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1112                         event->seen = (jiffies - b->seen)/HZ;
1113                         event->name = b->name;
1114                         event->action = b->pressed ? "pressed" : "released";
1115 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1116                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1117 #else
1118                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1119 #endif
1120                         schedule_work(&event->wq);
1121                 }
1122
1123                 b->seen = jiffies;
1124         }
1125         return IRQ_HANDLED;
1126 }
1127
1128 static void register_leds(struct led_t *l)
1129 {
1130         struct proc_dir_entry *p;
1131         u32 mask = 0;
1132         u32 oe_mask = 0;
1133         u32 val = 0;
1134
1135         leds = proc_mkdir("led", diag);
1136         if (!leds)
1137                 return;
1138
1139         for(; l->name; l++) {
1140                 if (l->gpio & gpiomask)
1141                         continue;
1142
1143                 if (l->gpio & GPIO_TYPE_EXTIF) {
1144                         l->state = 0;
1145                         set_led_extif(l);
1146                 } else {
1147                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1148                         mask |= l->gpio;
1149                         val |= (l->polarity == NORMAL)?0:l->gpio;
1150                 }
1151
1152                 if (l->polarity == INPUT) continue;
1153
1154                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1155                         l->proc.type = PROC_LED;
1156                         l->proc.ptr = l;
1157                         p->data = (void *) &l->proc;
1158                         p->proc_fops = &diag_proc_fops;
1159                 }
1160         }
1161
1162         gpio_outen(mask, oe_mask);
1163         gpio_control(mask, 0);
1164         gpio_out(mask, val);
1165         gpio_setintmask(mask, 0);
1166 }
1167
1168 static void unregister_leds(struct led_t *l)
1169 {
1170         for(; l->name; l++)
1171                 remove_proc_entry(l->name, leds);
1172
1173         remove_proc_entry("led", diag);
1174 }
1175
1176 static void set_led_extif(struct led_t *led)
1177 {
1178         gpio_set_extif(led->gpio, led->state);
1179 }
1180
1181 static void led_flash(unsigned long dummy) {
1182         struct led_t *l;
1183         u32 mask = 0;
1184         u8 extif_blink = 0;
1185
1186         for (l = platform.leds; l->name; l++) {
1187                 if (l->flash) {
1188                         if (l->gpio & GPIO_TYPE_EXTIF) {
1189                                 extif_blink = 1;
1190                                 l->state = !l->state;
1191                                 set_led_extif(l);
1192                         } else {
1193                                 mask |= l->gpio;
1194                         }
1195                 }
1196         }
1197
1198         mask &= ~gpiomask;
1199         if (mask) {
1200                 u32 val = ~gpio_in();
1201
1202                 gpio_outen(mask, mask);
1203                 gpio_control(mask, 0);
1204                 gpio_out(mask, val);
1205         }
1206         if (mask || extif_blink) {
1207                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1208         }
1209 }
1210
1211 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1212 {
1213 #ifdef LINUX_2_4
1214         struct inode *inode = file->f_dentry->d_inode;
1215         struct proc_dir_entry *dent = inode->u.generic_ip;
1216 #else
1217         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1218 #endif
1219         char *page;
1220         int len = 0;
1221
1222         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1223                 return -ENOBUFS;
1224
1225         if (dent->data != NULL) {
1226                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1227                 switch (handler->type) {
1228                         case PROC_LED: {
1229                                 struct led_t * led = (struct led_t *) handler->ptr;
1230                                 if (led->flash) {
1231                                         len = sprintf(page, "f\n");
1232                                 } else {
1233                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1234                                                 len = sprintf(page, "%d\n", led->state);
1235                                         } else {
1236                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1237                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1238                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1239                                         }
1240                                 }
1241                                 break;
1242                         }
1243                         case PROC_MODEL:
1244                                 len = sprintf(page, "%s\n", platform.name);
1245                                 break;
1246                         case PROC_GPIOMASK:
1247                                 len = sprintf(page, "0x%04x\n", gpiomask);
1248                                 break;
1249                 }
1250         }
1251         len += 1;
1252
1253         if (*ppos < len) {
1254                 len = min_t(int, len - *ppos, count);
1255                 if (copy_to_user(buf, (page + *ppos), len)) {
1256                         kfree(page);
1257                         return -EFAULT;
1258                 }
1259                 *ppos += len;
1260         } else {
1261                 len = 0;
1262         }
1263
1264         kfree(page);
1265         return len;
1266 }
1267
1268
1269 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1270 {
1271 #ifdef LINUX_2_4
1272         struct inode *inode = file->f_dentry->d_inode;
1273         struct proc_dir_entry *dent = inode->u.generic_ip;
1274 #else
1275         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1276 #endif
1277         char *page;
1278         int ret = -EINVAL;
1279
1280         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1281                 return -ENOBUFS;
1282
1283         if (copy_from_user(page, buf, count)) {
1284                 kfree(page);
1285                 return -EINVAL;
1286         }
1287         page[count] = 0;
1288
1289         if (dent->data != NULL) {
1290                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1291                 switch (handler->type) {
1292                         case PROC_LED: {
1293                                 struct led_t *led = (struct led_t *) handler->ptr;
1294                                 int p = (led->polarity == NORMAL ? 0 : 1);
1295
1296                                 if (page[0] == 'f') {
1297                                         led->flash = 1;
1298                                         led_flash(0);
1299                                 } else {
1300                                         led->flash = 0;
1301                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1302                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1303                                                 set_led_extif(led);
1304                                         } else {
1305                                                 gpio_outen(led->gpio, led->gpio);
1306                                                 gpio_control(led->gpio, 0);
1307                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1308                                         }
1309                                 }
1310                                 break;
1311                         }
1312                         case PROC_GPIOMASK:
1313                                 gpiomask = simple_strtoul(page, NULL, 0);
1314
1315                                 if (platform.buttons) {
1316                                         unregister_buttons(platform.buttons);
1317                                         register_buttons(platform.buttons);
1318                                 }
1319
1320                                 if (platform.leds) {
1321                                         unregister_leds(platform.leds);
1322                                         register_leds(platform.leds);
1323                                 }
1324                                 break;
1325                 }
1326                 ret = count;
1327         }
1328
1329         kfree(page);
1330         return ret;
1331 }
1332
1333 static int __init diag_init(void)
1334 {
1335         static struct proc_dir_entry *p;
1336         static struct platform_t *detected;
1337
1338         detected = platform_detect();
1339         if (!detected) {
1340                 printk(MODULE_NAME ": Router model not detected.\n");
1341                 return -ENODEV;
1342         }
1343         memcpy(&platform, detected, sizeof(struct platform_t));
1344
1345         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1346         if (platform.platform_init != NULL) {
1347                 platform.platform_init();
1348         }
1349
1350         if (!(diag = proc_mkdir("diag", NULL))) {
1351                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1352                 return -EINVAL;
1353         }
1354
1355         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1356                 p->data = (void *) &proc_model;
1357                 p->proc_fops = &diag_proc_fops;
1358         }
1359
1360         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1361                 p->data = (void *) &proc_gpiomask;
1362                 p->proc_fops = &diag_proc_fops;
1363         }
1364
1365         if (platform.buttons)
1366                 register_buttons(platform.buttons);
1367
1368         if (platform.leds)
1369                 register_leds(platform.leds);
1370
1371         return 0;
1372 }
1373
1374 static void __exit diag_exit(void)
1375 {
1376         del_timer(&led_timer);
1377
1378         if (platform.buttons)
1379                 unregister_buttons(platform.buttons);
1380
1381         if (platform.leds)
1382                 unregister_leds(platform.leds);
1383
1384         remove_proc_entry("model", diag);
1385         remove_proc_entry("gpiomask", diag);
1386         remove_proc_entry("diag", NULL);
1387 }
1388
1389 module_init(diag_init);
1390 module_exit(diag_exit);
1391
1392 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1393 MODULE_LICENSE("GPL");