package/broadcom-diag/src/diag.c

   1 /*
   2  * diag.c - GPIO interface driver for Broadcom boards
   3  *
   4  * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
   5  * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org>
   6  * Copyright (C) 2008 Andy Boyett <agb@openwrt.org>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * $Id$
  23  */
  24 #include <linux/module.h>
  25 #include <linux/pci.h>
  26 #include <linux/kmod.h>
  27 #include <linux/proc_fs.h>
  28 #include <linux/timer.h>
  29 #include <linux/version.h>
  30 #include <asm/uaccess.h>
  31
  32 #ifndef LINUX_2_4
  33 #include <linux/workqueue.h>
  34 #include <linux/skbuff.h>
  35 #include <linux/netlink.h>
  36 #include <net/sock.h>
  37 extern struct sock *uevent_sock;
  38 extern u64 uevent_next_seqnum(void);
  39 #else
  40 #include <linux/tqueue.h>
  41 #define INIT_WORK INIT_TQUEUE
  42 #define schedule_work schedule_task
  43 #define work_struct tq_struct
  44 #endif
  45
  46 #include "gpio.h"
  47 #include "diag.h"
  48 #define getvar(str) (nvram_get(str)?:"")
  49
  50 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  51 static int fill_event(struct event_t *);
  52 static unsigned int gpiomask = 0;
  53 module_param(gpiomask, int, 0644);
  54
  55 enum {
  56         /* Linksys */
  57         WAP54GV1,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT350N,
  64         WRT600N,
  65         WRT600NV11,
  66
  67         /* ASUS */
  68         WLHDD,
  69         WL300G,
  70         WL320GE,
  71         WL330GE,
  72         WL500G,
  73         WL500GD,
  74         WL500GP,
  75         WL500GPV2,
  76         WL500W,
  77         WL520GC,
  78         WL520GU,
  79         ASUS_4702,
  80         WL700GE,
  81
  82         /* Buffalo */
  83         WBR2_G54,
  84         WHR_G54S,
  85         WHR_HP_G54,
  86         WHR_G125,
  87         WHR2_A54G54,
  88         WLA2_G54L,
  89         WZR_G300N,
  90         WZR_RS_G54,
  91         WZR_RS_G54HP,
  92         BUFFALO_UNKNOWN,
  93         BUFFALO_UNKNOWN_4710,
  94
  95         /* Siemens */
  96         SE505V1,
  97         SE505V2,
  98
  99         /* US Robotics */
 100         USR5461,
 101
 102         /* Dell */
 103         TM2300,
 104         TM2300V2,
 105
 106         /* Motorola */
 107         WE800G,
 108         WR850GV1,
 109         WR850GV2V3,
 110         WR850GP,
 111
 112         /* Belkin */
 113         BELKIN_UNKNOWN,
 114
 115         /* Netgear */
 116         WGT634U,
 117
 118         /* Trendware */
 119         TEW411BRPP,
 120
 121         /* SimpleTech */
 122         STI_NAS,
 123
 124         /* D-Link */
 125         DIR130,
 126         DIR330,
 127         DWL3150,
 128
 129         /* Sitecom */
 130         WL105B,
 131 };
 132
 133 static void __init bcm4780_init(void) {
 134                 int pin = 1 << 3;
 135
 136                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 137                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 138                 gpio_outen(pin, pin);
 139                 gpio_control(pin, 0);
 140                 gpio_out(pin, pin);
 141
 142                 /* Wait 5s, so the HDD can spin up */
 143                 set_current_state(TASK_INTERRUPTIBLE);
 144                 schedule_timeout(HZ * 5);
 145 }
 146
 147 static void __init bcm57xx_init(void) {
 148         int pin = 1 << 2;
 149
 150 #ifndef LINUX_2_4
 151         /* FIXME: switch comes up, but port mappings/vlans not right */
 152         gpio_outen(pin, pin);
 153         gpio_control(pin, 0);
 154         gpio_out(pin, pin);
 155 #endif
 156 }
 157
 158 static struct platform_t __initdata platforms[] = {
 159         /* Linksys */
 160         [WAP54GV1] = {
 161                 .name           = "Linksys WAP54G V1",
 162                 .buttons        = {
 163                         { .name = "reset",      .gpio = 1 << 0 },
 164                 },
 165                 .leds           = {
 166                         { .name = "diag",       .gpio = 1 << 3 },
 167                         { .name = "wlan",       .gpio = 1 << 4 },
 168                 },
 169         },
 170         [WAP54GV3] = {
 171                 .name           = "Linksys WAP54G V3",
 172                 .buttons        = {
 173                         /* FIXME: verify this */
 174                         { .name = "reset",      .gpio = 1 << 7 },
 175                         { .name = "ses",        .gpio = 1 << 0 },
 176                 },
 177                 .leds           = {
 178                         /* FIXME: diag? */
 179                         { .name = "ses",        .gpio = 1 << 1 },
 180                 },
 181         },
 182         [WRT54GV1] = {
 183                 .name           = "Linksys WRT54G V1.x",
 184                 .buttons        = {
 185                         { .name = "reset",      .gpio = 1 << 6 },
 186                 },
 187                 .leds           = {
 188                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 189                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 190                 },
 191         },
 192         [WRT54G] = {
 193                 .name           = "Linksys WRT54G/GS/GL",
 194                 .buttons        = {
 195                         { .name = "reset",      .gpio = 1 << 6 },
 196                         { .name = "ses",        .gpio = 1 << 4 },
 197                 },
 198                 .leds           = {
 199                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 200                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 201                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 202                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 203                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 204                 },
 205         },
 206         [WRTSL54GS] = {
 207                 .name           = "Linksys WRTSL54GS",
 208                 .buttons        = {
 209                         { .name = "reset",      .gpio = 1 << 6 },
 210                         { .name = "ses",        .gpio = 1 << 4 },
 211                 },
 212                 .leds           = {
 213                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 214                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 215                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 216                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 217                 },
 218         },
 219         [WRT54G3G] = {
 220                 .name           = "Linksys WRT54G3G",
 221                 .buttons        = {
 222                         { .name = "reset",      .gpio = 1 << 6 },
 223                         { .name = "3g",         .gpio = 1 << 4 },
 224                 },
 225                 .leds           = {
 226                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 227                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 228                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 229                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 230                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 231                 },
 232         },
 233         [WRT350N] = {
 234                 .name           = "Linksys WRT350N",
 235                 .buttons        = {
 236                         { .name = "reset",      .gpio = 1 << 6 },
 237                         { .name = "ses",        .gpio = 1 << 8 },
 238                 },
 239                 .leds           = {
 240                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 241                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 242                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 243                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 244                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 245                 },
 246                 .platform_init = bcm57xx_init,
 247         },
 248         [WRT600N] = {
 249                 .name           = "Linksys WRT600N",
 250                 .buttons        = {
 251                         { .name = "reset",      .gpio = 1 << 6 },
 252                         { .name = "ses",        .gpio = 1 << 7 },
 253                 },
 254                 .leds           = {
 255                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 256                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 257                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 258                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 259                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 260                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 261                 },
 262                 .platform_init = bcm57xx_init,
 263         },
 264         [WRT600NV11] = {
 265                 .name           = "Linksys WRT600N V1.1",
 266                 .buttons        = {
 267                         { .name = "reset",      .gpio = 1 << 6 },
 268                         { .name = "ses",        .gpio = 1 << 7 },
 269                 },
 270                 .leds           = {
 271                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 272                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 273                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 274                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 275                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 276                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 277                 },
 278                 .platform_init = bcm57xx_init,
 279         },
 280         /* Asus */
 281         [WLHDD] = {
 282                 .name           = "ASUS WL-HDD",
 283                 .buttons        = {
 284                         { .name = "reset",      .gpio = 1 << 6 },
 285                 },
 286                 .leds           = {
 287                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 288                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 289                 },
 290         },
 291         [WL300G] = {
 292                 .name           = "ASUS WL-300g",
 293                 .buttons        = {
 294                         { .name = "reset",      .gpio = 1 << 6 },
 295                 },
 296                 .leds           = {
 297                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 298                 },
 299         },
 300         [WL320GE] = {
 301                 .name           = "ASUS WL-320gE/WL-320gP",
 302                 .buttons        = {
 303                         { .name = "reset",      .gpio = 1 << 6 },
 304                 },
 305                 .leds           = {
 306                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 307                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 308                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 309                 },
 310         },
 311         [WL330GE] = {
 312                 .name           = "ASUS WL-330gE",
 313                 .buttons        = {
 314                         { .name = "reset",      .gpio = 1 << 2 },
 315                 },
 316                 .leds           = {
 317                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 318                 },
 319         },
 320         [WL500G] = {
 321                 .name           = "ASUS WL-500g",
 322                 .buttons        = {
 323                         { .name = "reset",      .gpio = 1 << 6 },
 324                 },
 325                 .leds           = {
 326                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 327                 },
 328         },
 329         [WL500GD] = {
 330                 .name           = "ASUS WL-500g Deluxe",
 331                 .buttons        = {
 332                         { .name = "reset",      .gpio = 1 << 6 },
 333                 },
 334                 .leds           = {
 335                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 336                 },
 337         },
 338         [WL500GP] = {
 339                 .name           = "ASUS WL-500g Premium",
 340                 .buttons        = {
 341                         { .name = "reset",      .gpio = 1 << 0 },
 342                         { .name = "ses",        .gpio = 1 << 4 },
 343                 },
 344                 .leds           = {
 345                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 346                 },
 347         },
 348         [WL500GPV2] = {
 349                 .name           = "ASUS WL-500g Premium V2",
 350                 .buttons        = {
 351                         { .name = "reset",      .gpio = 1 << 2 },
 352                         { .name = "ses",        .gpio = 1 << 3 },
 353                 },
 354                 .leds           = {
 355                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 356                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 357                 },
 358         },
 359         [WL500W] = {
 360                 .name           = "ASUS WL-500W",
 361                 .buttons        = {
 362                         { .name = "reset",      .gpio = 1 << 6 },
 363                         { .name = "ses",        .gpio = 1 << 7 },
 364                 },
 365                 .leds           = {
 366                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 367                 },
 368         },
 369         [WL520GC] = {
 370                 .name           = "ASUS WL-520GC",
 371                 .buttons        = {
 372                         { .name = "reset",      .gpio = 1 << 2 },
 373                         { .name = "ses",        .gpio = 1 << 3 },
 374                 },
 375                 .leds           = {
 376                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 377                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 378                 },
 379         },
 380         [WL520GU] = {
 381                 .name           = "ASUS WL-520gU",
 382                 .buttons        = {
 383                         { .name = "reset",      .gpio = 1 << 2 },
 384                         { .name = "ses",        .gpio = 1 << 3 },
 385                 },
 386                 .leds           = {
 387                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 388                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 389                 },
 390         },
 391         [ASUS_4702] = {
 392                 .name           = "ASUS (unknown, BCM4702)",
 393                 .buttons        = {
 394                         { .name = "reset",      .gpio = 1 << 6 },
 395                 },
 396                 .leds           = {
 397                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 398                 },
 399         },
 400         [WL700GE] = {
 401                 .name           = "ASUS WL-700gE",
 402                 .buttons        = {
 403                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 404                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 405                         { .name = "power",      .gpio = 1 << 0 }, // on front
 406                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 407                 },
 408                 .leds           = {
 409 #if 0
 410                         // GPIO that controls power led also enables/disables some essential functions
 411                         // - power to HDD
 412                         // - switch leds
 413                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 414 #endif
 415                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 416                 },
 417                 .platform_init = bcm4780_init,
 418         },
 419         /* Buffalo */
 420         [WHR_G54S] = {
 421                 .name           = "Buffalo WHR-G54S",
 422                 .buttons        = {
 423                         { .name = "reset",      .gpio = 1 << 4 },
 424                         { .name = "bridge",     .gpio = 1 << 5 },
 425                         { .name = "ses",        .gpio = 1 << 0 },
 426                 },
 427                 .leds           = {
 428                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 429                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 430                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 431                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 432                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 433                 },
 434         },
 435         [WBR2_G54] = {
 436                 .name           = "Buffalo WBR2-G54",
 437                 /* FIXME: verify */
 438                 .buttons        = {
 439                         { .name = "reset",      .gpio = 1 << 7 },
 440                 },
 441                 .leds           = {
 442                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 443                 },
 444         },
 445         [WHR_HP_G54] = {
 446                 .name           = "Buffalo WHR-HP-G54",
 447                 .buttons        = {
 448                         { .name = "reset",      .gpio = 1 << 4 },
 449                         { .name = "bridge",     .gpio = 1 << 5 },
 450                         { .name = "ses",        .gpio = 1 << 0 },
 451                 },
 452                 .leds           = {
 453                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 454                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 455                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 456                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 457                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 458                 },
 459         },
 460         [WHR_G125] = {
 461                 .name           = "Buffalo WHR-G125",
 462                 .buttons        = {
 463                         { .name = "reset",      .gpio = 1 << 4 },
 464                         { .name = "bridge",     .gpio = 1 << 5 },
 465                         { .name = "ses",        .gpio = 1 << 0 },
 466                 },
 467                 .leds           = {
 468                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 469                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 470                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 471                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 472                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 473                 },
 474         },
 475         [WHR2_A54G54] = {
 476                 .name           = "Buffalo WHR2-A54G54",
 477                 .buttons        = {
 478                         { .name = "reset",      .gpio = 1 << 4 },
 479                 },
 480                 .leds           = {
 481                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 482                 },
 483         },
 484         [WLA2_G54L] = {
 485                 .name           = "Buffalo WLA2-G54L",
 486                 /* FIXME: verify */
 487                 .buttons        = {
 488                         { .name = "reset",      .gpio = 1 << 7 },
 489                 },
 490                 .leds           = {
 491                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 492                 },
 493         },
 494         [WZR_G300N] = {
 495                 .name           = "Buffalo WZR-G300N",
 496                 .buttons        = {
 497                         { .name = "reset",      .gpio = 1 << 4 },
 498                 },
 499                 .leds           = {
 500                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 501                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 502                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 503                 },
 504         },
 505         [WZR_RS_G54] = {
 506                 .name           = "Buffalo WZR-RS-G54",
 507                 .buttons        = {
 508                         { .name = "ses",        .gpio = 1 << 0 },
 509                         { .name = "reset",      .gpio = 1 << 4 },
 510                 },
 511                 .leds           = {
 512                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 513                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 514                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 515                 },
 516         },
 517         [WZR_RS_G54HP] = {
 518                 .name           = "Buffalo WZR-RS-G54HP",
 519                 .buttons        = {
 520                         { .name = "ses",        .gpio = 1 << 0 },
 521                         { .name = "reset",      .gpio = 1 << 4 },
 522                 },
 523                 .leds           = {
 524                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 525                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 526                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 527                 },
 528         },
 529         [BUFFALO_UNKNOWN] = {
 530                 .name           = "Buffalo (unknown)",
 531                 .buttons        = {
 532                         { .name = "reset",      .gpio = 1 << 7 },
 533                 },
 534                 .leds           = {
 535                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 536                 },
 537         },
 538         [BUFFALO_UNKNOWN_4710] = {
 539                 .name           = "Buffalo (unknown, BCM4710)",
 540                 .buttons        = {
 541                         { .name = "reset",      .gpio = 1 << 4 },
 542                 },
 543                 .leds           = {
 544                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 545                 },
 546         },
 547         /* Siemens */
 548         [SE505V1] = {
 549                 .name           = "Siemens SE505 V1",
 550                 .buttons        = {
 551                         /* No usable buttons */
 552                 },
 553                 .leds           = {
 554 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 555                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 556                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 557                 },
 558         },
 559         [SE505V2] = {
 560                 .name           = "Siemens SE505 V2",
 561                 .buttons        = {
 562                         /* No usable buttons */
 563                 },
 564                 .leds           = {
 565                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 566                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 567                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 568                 },
 569         },
 570         /* US Robotics */
 571         [USR5461] = {
 572                 .name           = "U.S. Robotics USR5461",
 573                 .buttons        = {
 574                         /* No usable buttons */
 575                 },
 576                 .leds           = {
 577                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 578                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 579                 },
 580         },
 581         /* Dell */
 582         [TM2300] = {
 583                 .name           = "Dell TrueMobile 2300",
 584                 .buttons        = {
 585                         { .name = "reset",      .gpio = 1 << 0 },
 586                 },
 587                 .leds           = {
 588                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 589                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 590                 },
 591         },
 592         [TM2300V2] = {
 593                 .name           = "Dell TrueMobile 2300 v2",
 594                 .buttons        = {
 595                         { .name = "reset",      .gpio = 1 << 0 },
 596                 },
 597                 .leds           = {
 598                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 599                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 600                 },
 601         },
 602         /* Motorola */
 603         [WE800G] = {
 604                 .name           = "Motorola WE800G",
 605                 .buttons        = {
 606                         { .name = "reset",      .gpio = 1 << 0 },
 607                 },
 608                 .leds           = {
 609                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 610                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 611                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 612                 },
 613         },
 614         [WR850GV1] = {
 615                 .name           = "Motorola WR850G V1",
 616                 .buttons        = {
 617                         { .name = "reset",      .gpio = 1 << 0 },
 618                 },
 619                 .leds           = {
 620                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 621                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 622                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 623                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 624                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 625                 },
 626         },
 627         [WR850GV2V3] = {
 628                 .name           = "Motorola WR850G V2/V3",
 629                 .buttons        = {
 630                         { .name = "reset",      .gpio = 1 << 5 },
 631                 },
 632                 .leds           = {
 633                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 634                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 635                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 636                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 637                 },
 638         },
 639         [WR850GP] = {
 640                 .name           = "Motorola WR850GP",
 641                 .buttons        = {
 642                         { .name = "reset",      .gpio = 1 << 5 },
 643                 },
 644                 .leds           = {
 645                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 646                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 647                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 648                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 649                 },
 650         },
 651
 652         /* Belkin */
 653         [BELKIN_UNKNOWN] = {
 654                 .name           = "Belkin (unknown)",
 655                 /* FIXME: verify & add detection */
 656                 .buttons        = {
 657                         { .name = "reset",      .gpio = 1 << 7 },
 658                 },
 659                 .leds           = {
 660                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 661                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 662                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 663                 },
 664         },
 665         /* Netgear */
 666         [WGT634U] = {
 667                 .name           = "Netgear WGT634U",
 668                 .buttons        = {
 669                         { .name = "reset",      .gpio = 1 << 2 },
 670                 },
 671                 .leds           = {
 672                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 673                 },
 674         },
 675         /* Trendware */
 676         [TEW411BRPP] = {
 677                 .name           = "Trendware TEW411BRP+",
 678                 .buttons        = {
 679                         { /* No usable buttons */ },
 680                 },
 681                 .leds           = {
 682                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 683                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 684                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 685                 },
 686         },
 687         /* SimpleTech */
 688         [STI_NAS] = {
 689                 .name      = "SimpleTech SimpleShare NAS",
 690                 .buttons        = {
 691                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 692                         { .name = "power",      .gpio = 1 << 0 }, // on back
 693                 },
 694                 .leds      = {
 695                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 696                 },
 697                 .platform_init = bcm4780_init,
 698         },
 699         /* D-Link */
 700         [DIR130] = {
 701                 .name     = "D-Link DIR-130",
 702                 .buttons        = {
 703                         { .name = "reset",      .gpio = 1 << 3},
 704                         { .name = "reserved",   .gpio = 1 << 7},
 705                 },
 706                 .leds      = {
 707                         { .name = "diag",       .gpio = 1 << 0},
 708                         { .name = "blue",       .gpio = 1 << 6},
 709                 },
 710         },
 711         [DIR330] = {
 712                 .name     = "D-Link DIR-330",
 713                 .buttons        = {
 714                         { .name = "reset",      .gpio = 1 << 3},
 715                         { .name = "reserved",   .gpio = 1 << 7},
 716                 },
 717                 .leds      = {
 718                         { .name = "diag",       .gpio = 1 << 0},
 719                         { .name = "usb",        .gpio = 1 << 4},
 720                         { .name = "blue",       .gpio = 1 << 6},
 721                 },
 722         },
 723         [DWL3150] = {
 724                 .name   = "D-Link DWL-3150",
 725                 .buttons        = {
 726                         { .name = "reset",      .gpio = 1 << 7},
 727                 },
 728                 .leds     = {
 729                         { .name = "diag",       .gpio = 1 << 2},
 730                         { .name = "status",     .gpio = 1 << 1},
 731                 },
 732         },
 733         /* Double check */
 734         [WL105B] = {
 735                 .name   = "Sitecom WL-105b",
 736                 .buttons        = {
 737                         { .name = "reset",      .gpio = 1 << 10},
 738                 },
 739                 .leds     = {
 740                         { .name = "wlan",       .gpio = 1 << 4},
 741                         { .name = "power",      .gpio = 1 << 3},
 742                 },
 743         },
 744 };
 745
 746 static struct platform_t __init *platform_detect(void)
 747 {
 748         char *boardnum, *boardtype, *buf;
 749
 750         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 751                 return &platforms[WGT634U];
 752
 753         /* Look for a model identifier */
 754
 755         /* Based on "model_name" */
 756         if ((buf = nvram_get("model_name"))) {
 757                 if (!strcmp(buf, "DIR-130"))
 758                         return &platforms[DIR130];
 759                 if (!strcmp(buf, "DIR-330"))
 760                         return &platforms[DIR330];
 761         }
 762
 763         /* Based on "model_no" */
 764         if ((buf = nvram_get("model_no"))) {
 765                 if (startswith(buf,"WL700")) /* WL700* */
 766                         return &platforms[WL700GE];
 767         }
 768
 769         /* Based on "hardware_version" */
 770         if ((buf = nvram_get("hardware_version"))) {
 771                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 772                         return &platforms[WL500GPV2];
 773                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 774                         return &platforms[WL520GC];
 775                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 776                         return &platforms[WL520GU];
 777                 if (startswith(buf,"WL330GE-")) /* WL330GE-* */
 778                         return &platforms[WL330GE];
 779         }
 780
 781         /* Based on "ModelId" */
 782         if ((buf = nvram_get("ModelId"))) {
 783                 if (!strcmp(buf, "WR850GP"))
 784                         return &platforms[WR850GP];
 785                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 786                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 787                 if (startswith(buf,"WE800G")) /* WE800G* */
 788                         return &platforms[WE800G];
 789         }
 790
 791         /* Buffalo */
 792         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 793                 /* Buffalo hardware, check id for specific hardware matches */
 794                 if (!strcmp(buf, "29bb0332"))
 795                         return &platforms[WBR2_G54];
 796                 if (!strcmp(buf, "29129"))
 797                         return &platforms[WLA2_G54L];
 798                 if (!strcmp(buf, "30189"))
 799                         return &platforms[WHR_HP_G54];
 800                 if (!strcmp(buf, "32093"))
 801                         return &platforms[WHR_G125];
 802                 if (!strcmp(buf, "30182"))
 803                         return &platforms[WHR_G54S];
 804                 if (!strcmp(buf, "290441dd"))
 805                         return &platforms[WHR2_A54G54];
 806                 if (!strcmp(buf, "31120"))
 807                         return &platforms[WZR_G300N];
 808                 if (!strcmp(buf, "30083"))
 809                         return &platforms[WZR_RS_G54];
 810                 if (!strcmp(buf, "30103"))
 811                         return &platforms[WZR_RS_G54HP];
 812         }
 813
 814         /* no easy model number, attempt to guess */
 815         boardnum = getvar("boardnum");
 816         boardtype = getvar("boardtype");
 817
 818         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 819                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 820                         return &platforms[WRT600NV11];
 821
 822         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 823                         return &platforms[WRT600N];
 824         }
 825
 826         if (startswith(getvar("pmon_ver"), "CFE")) {
 827                 /* CFE based - newer hardware */
 828                 if (!strcmp(boardnum, "42")) { /* Linksys */
 829                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 830                                 return &platforms[WRT350N];
 831
 832                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 833                                 return &platforms[WRT54G3G];
 834
 835                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 836                                 return &platforms[WRTSL54GS];
 837
 838                         /* default to WRT54G */
 839                         return &platforms[WRT54G];
 840                 }
 841
 842                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 843                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 844                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 845                 }
 846
 847                 if (!strcmp(boardnum, "45")) { /* ASUS */
 848                         if (!strcmp(boardtype,"0x042f"))
 849                                 return &platforms[WL500GP];
 850                         else if (!strcmp(boardtype,"0x0472"))
 851                                 return &platforms[WL500W];
 852                         else if (!strcmp(boardtype,"0x467"))
 853                                 return &platforms[WL320GE];
 854                         else
 855                                 return &platforms[WL500GD];
 856                 }
 857
 858                 if (!strcmp(boardnum, "10496"))
 859                         return &platforms[USR5461];
 860
 861                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 862                         return &platforms[SE505V2];
 863
 864         } else { /* PMON based - old stuff */
 865                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 866                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 867                         return &platforms[WR850GV1];
 868                 }
 869                 if (startswith(boardtype, "bcm94710dev")) {
 870                         if (!strcmp(boardnum, "42"))
 871                                 return &platforms[WRT54GV1];
 872                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 873                                 return &platforms[WAP54GV1];
 874                 }
 875                 if (startswith(getvar("hardware_version"), "WL500-"))
 876                         return &platforms[WL500G];
 877                 if (startswith(getvar("hardware_version"), "WL300-")) {
 878                         /* Either WL-300g or WL-HDD, do more extensive checks */
 879                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 880                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 881                                 return &platforms[WLHDD];
 882                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 883                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 884                                 return &platforms[WL300G];
 885                 }
 886                 /* Sitecom WL-105b */
 887                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
 888                         return &platforms[WL105B];
 889
 890                 /* unknown asus stuff, probably bcm4702 */
 891                 if (startswith(boardnum, "asusX"))
 892                         return &platforms[ASUS_4702];
 893         }
 894
 895         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 896                 if (startswith(boardtype, "bcm94710ap"))
 897                         return &platforms[BUFFALO_UNKNOWN_4710];
 898                 else
 899                         return &platforms[BUFFALO_UNKNOWN];
 900         }
 901
 902         if (startswith(getvar("CFEver"), "MotoWRv2") ||
 903                 startswith(getvar("CFEver"), "MotoWRv3") ||
 904                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 905
 906                 return &platforms[WR850GV2V3];
 907         }
 908
 909         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
 910                 return &platforms[TEW411BRPP];
 911         }
 912
 913         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
 914                 return &platforms[STI_NAS];
 915
 916         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
 917                 return &platforms[DWL3150];
 918
 919         /* not found */
 920         return NULL;
 921 }
 922
 923 static void register_buttons(struct button_t *b)
 924 {
 925         for (; b->name; b++)
 926                 platform.button_mask |= b->gpio;
 927
 928         platform.button_mask &= ~gpiomask;
 929
 930         gpio_outen(platform.button_mask, 0);
 931         gpio_control(platform.button_mask, 0);
 932         platform.button_polarity = gpio_in() & platform.button_mask;
 933         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 934         gpio_setintmask(platform.button_mask, platform.button_mask);
 935
 936         gpio_set_irqenable(1, button_handler);
 937 }
 938
 939 static void unregister_buttons(struct button_t *b)
 940 {
 941         gpio_setintmask(platform.button_mask, 0);
 942
 943         gpio_set_irqenable(0, button_handler);
 944 }
 945
 946
 947 #ifndef LINUX_2_4
 948 static void add_msg(struct event_t *event, char *msg, int argv)
 949 {
 950         char *s;
 951
 952         if (argv)
 953                 return;
 954
 955         s = skb_put(event->skb, strlen(msg) + 1);
 956         strcpy(s, msg);
 957 }
 958
 959 static void hotplug_button(struct work_struct *work)
 960 {
 961         struct event_t *event = container_of(work, struct event_t, wq);
 962         char *s;
 963
 964         if (!uevent_sock)
 965                 return;
 966
 967         event->skb = alloc_skb(2048, GFP_KERNEL);
 968
 969         s = skb_put(event->skb, strlen(event->action) + 2);
 970         sprintf(s, "%s@", event->action);
 971         fill_event(event);
 972
 973         NETLINK_CB(event->skb).dst_group = 1;
 974         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
 975
 976         kfree(event);
 977 }
 978
 979 #else /* !LINUX_2_4 */
 980 static inline char *kzalloc(unsigned int size, unsigned int gfp)
 981 {
 982         char *p;
 983
 984         p = kmalloc(size, gfp);
 985         if (p == NULL)
 986                 return NULL;
 987
 988         memset(p, 0, size);
 989
 990         return p;
 991 }
 992
 993 static void add_msg(struct event_t *event, char *msg, int argv)
 994 {
 995         if (argv)
 996                 event->argv[event->anr++] = event->scratch;
 997         else
 998                 event->envp[event->enr++] = event->scratch;
 999
1000         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
1001 }
1002
1003 static void hotplug_button(struct event_t *event)
1004 {
1005         char *scratch = kzalloc(256, GFP_KERNEL);
1006         event->scratch = scratch;
1007
1008         add_msg(event, hotplug_path, 1);
1009         add_msg(event, "button", 1);
1010         fill_event(event);
1011         call_usermodehelper (event->argv[0], event->argv, event->envp);
1012         kfree(scratch);
1013         kfree(event);
1014 }
1015 #endif /* !LINUX_2_4 */
1016
1017 static int fill_event (struct event_t *event)
1018 {
1019         static char buf[128];
1020
1021         add_msg(event, "HOME=/", 0);
1022         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1023         add_msg(event, "SUBSYSTEM=button", 0);
1024         snprintf(buf, 128, "ACTION=%s", event->action);
1025         add_msg(event, buf, 0);
1026         snprintf(buf, 128, "BUTTON=%s", event->name);
1027         add_msg(event, buf, 0);
1028         snprintf(buf, 128, "SEEN=%ld", event->seen);
1029         add_msg(event, buf, 0);
1030 #ifndef LINUX_2_4
1031         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1032         add_msg(event, buf, 0);
1033 #endif
1034
1035         return 0;
1036 }
1037
1038
1039 #ifndef LINUX_2_4
1040 static irqreturn_t button_handler(int irq, void *dev_id)
1041 #else
1042 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1043 #endif
1044 {
1045         struct button_t *b;
1046         u32 in, changed;
1047
1048         in = gpio_in() & platform.button_mask;
1049         gpio_intpolarity(platform.button_mask, in);
1050         changed = platform.button_polarity ^ in;
1051         platform.button_polarity = in;
1052
1053         changed &= ~gpio_outen(0, 0);
1054
1055         for (b = platform.buttons; b->name; b++) {
1056                 struct event_t *event;
1057
1058                 if (!(b->gpio & changed)) continue;
1059
1060                 b->pressed ^= 1;
1061
1062                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1063                         event->seen = (jiffies - b->seen)/HZ;
1064                         event->name = b->name;
1065                         event->action = b->pressed ? "pressed" : "released";
1066 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1067                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1068 #else
1069                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1070 #endif
1071                         schedule_work(&event->wq);
1072                 }
1073
1074                 b->seen = jiffies;
1075         }
1076         return IRQ_HANDLED;
1077 }
1078
1079 static void register_leds(struct led_t *l)
1080 {
1081         struct proc_dir_entry *p;
1082         u32 mask = 0;
1083         u32 oe_mask = 0;
1084         u32 val = 0;
1085
1086         leds = proc_mkdir("led", diag);
1087         if (!leds)
1088                 return;
1089
1090         for(; l->name; l++) {
1091                 if (l->gpio & gpiomask)
1092                         continue;
1093
1094                 if (l->gpio & GPIO_TYPE_EXTIF) {
1095                         l->state = 0;
1096                         set_led_extif(l);
1097                 } else {
1098                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1099                         mask |= l->gpio;
1100                         val |= (l->polarity == NORMAL)?0:l->gpio;
1101                 }
1102
1103                 if (l->polarity == INPUT) continue;
1104
1105                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1106                         l->proc.type = PROC_LED;
1107                         l->proc.ptr = l;
1108                         p->data = (void *) &l->proc;
1109                         p->proc_fops = &diag_proc_fops;
1110                 }
1111         }
1112
1113         gpio_outen(mask, oe_mask);
1114         gpio_control(mask, 0);
1115         gpio_out(mask, val);
1116         gpio_setintmask(mask, 0);
1117 }
1118
1119 static void unregister_leds(struct led_t *l)
1120 {
1121         for(; l->name; l++)
1122                 remove_proc_entry(l->name, leds);
1123
1124         remove_proc_entry("led", diag);
1125 }
1126
1127 static void set_led_extif(struct led_t *led)
1128 {
1129         gpio_set_extif(led->gpio, led->state);
1130 }
1131
1132 static void led_flash(unsigned long dummy) {
1133         struct led_t *l;
1134         u32 mask = 0;
1135         u8 extif_blink = 0;
1136
1137         for (l = platform.leds; l->name; l++) {
1138                 if (l->flash) {
1139                         if (l->gpio & GPIO_TYPE_EXTIF) {
1140                                 extif_blink = 1;
1141                                 l->state = !l->state;
1142                                 set_led_extif(l);
1143                         } else {
1144                                 mask |= l->gpio;
1145                         }
1146                 }
1147         }
1148
1149         mask &= ~gpiomask;
1150         if (mask) {
1151                 u32 val = ~gpio_in();
1152
1153                 gpio_outen(mask, mask);
1154                 gpio_control(mask, 0);
1155                 gpio_out(mask, val);
1156         }
1157         if (mask || extif_blink) {
1158                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1159         }
1160 }
1161
1162 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1163 {
1164 #ifdef LINUX_2_4
1165         struct inode *inode = file->f_dentry->d_inode;
1166         struct proc_dir_entry *dent = inode->u.generic_ip;
1167 #else
1168         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1169 #endif
1170         char *page;
1171         int len = 0;
1172
1173         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1174                 return -ENOBUFS;
1175
1176         if (dent->data != NULL) {
1177                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1178                 switch (handler->type) {
1179                         case PROC_LED: {
1180                                 struct led_t * led = (struct led_t *) handler->ptr;
1181                                 if (led->flash) {
1182                                         len = sprintf(page, "f\n");
1183                                 } else {
1184                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1185                                                 len = sprintf(page, "%d\n", led->state);
1186                                         } else {
1187                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1188                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1189                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1190                                         }
1191                                 }
1192                                 break;
1193                         }
1194                         case PROC_MODEL:
1195                                 len = sprintf(page, "%s\n", platform.name);
1196                                 break;
1197                         case PROC_GPIOMASK:
1198                                 len = sprintf(page, "0x%04x\n", gpiomask);
1199                                 break;
1200                 }
1201         }
1202         len += 1;
1203
1204         if (*ppos < len) {
1205                 len = min_t(int, len - *ppos, count);
1206                 if (copy_to_user(buf, (page + *ppos), len)) {
1207                         kfree(page);
1208                         return -EFAULT;
1209                 }
1210                 *ppos += len;
1211         } else {
1212                 len = 0;
1213         }
1214
1215         kfree(page);
1216         return len;
1217 }
1218
1219
1220 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1221 {
1222 #ifdef LINUX_2_4
1223         struct inode *inode = file->f_dentry->d_inode;
1224         struct proc_dir_entry *dent = inode->u.generic_ip;
1225 #else
1226         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1227 #endif
1228         char *page;
1229         int ret = -EINVAL;
1230
1231         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1232                 return -ENOBUFS;
1233
1234         if (copy_from_user(page, buf, count)) {
1235                 kfree(page);
1236                 return -EINVAL;
1237         }
1238         page[count] = 0;
1239
1240         if (dent->data != NULL) {
1241                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1242                 switch (handler->type) {
1243                         case PROC_LED: {
1244                                 struct led_t *led = (struct led_t *) handler->ptr;
1245                                 int p = (led->polarity == NORMAL ? 0 : 1);
1246
1247                                 if (page[0] == 'f') {
1248                                         led->flash = 1;
1249                                         led_flash(0);
1250                                 } else {
1251                                         led->flash = 0;
1252                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1253                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1254                                                 set_led_extif(led);
1255                                         } else {
1256                                                 gpio_outen(led->gpio, led->gpio);
1257                                                 gpio_control(led->gpio, 0);
1258                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1259                                         }
1260                                 }
1261                                 break;
1262                         }
1263                         case PROC_GPIOMASK:
1264                                 gpiomask = simple_strtoul(page, NULL, 0);
1265
1266                                 if (platform.buttons) {
1267                                         unregister_buttons(platform.buttons);
1268                                         register_buttons(platform.buttons);
1269                                 }
1270
1271                                 if (platform.leds) {
1272                                         unregister_leds(platform.leds);
1273                                         register_leds(platform.leds);
1274                                 }
1275                                 break;
1276                 }
1277                 ret = count;
1278         }
1279
1280         kfree(page);
1281         return ret;
1282 }
1283
1284 static int __init diag_init(void)
1285 {
1286         static struct proc_dir_entry *p;
1287         static struct platform_t *detected;
1288
1289         detected = platform_detect();
1290         if (!detected) {
1291                 printk(MODULE_NAME ": Router model not detected.\n");
1292                 return -ENODEV;
1293         }
1294         memcpy(&platform, detected, sizeof(struct platform_t));
1295
1296         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1297         if (platform.platform_init != NULL) {
1298                 platform.platform_init();
1299         }
1300
1301         if (!(diag = proc_mkdir("diag", NULL))) {
1302                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1303                 return -EINVAL;
1304         }
1305
1306         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1307                 p->data = (void *) &proc_model;
1308                 p->proc_fops = &diag_proc_fops;
1309         }
1310
1311         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1312                 p->data = (void *) &proc_gpiomask;
1313                 p->proc_fops = &diag_proc_fops;
1314         }
1315
1316         if (platform.buttons)
1317                 register_buttons(platform.buttons);
1318
1319         if (platform.leds)
1320                 register_leds(platform.leds);
1321
1322         return 0;
1323 }
1324
1325 static void __exit diag_exit(void)
1326 {
1327         del_timer(&led_timer);
1328
1329         if (platform.buttons)
1330                 unregister_buttons(platform.buttons);
1331
1332         if (platform.leds)
1333                 unregister_leds(platform.leds);
1334
1335         remove_proc_entry("model", diag);
1336         remove_proc_entry("gpiomask", diag);
1337         remove_proc_entry("diag", NULL);
1338 }
1339
1340 module_init(diag_init);
1341 module_exit(diag_exit);
1342
1343 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1344 MODULE_LICENSE("GPL");