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