package/broadcom-diag/src/diag.c

   1 /*
   2  * diag.c - GPIO interface driver for Broadcom boards
   3  *
   4  * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
   5  * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org>
   6  * Copyright (C) 2008 Andy Boyett <agb@openwrt.org>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  */
  23 #include <linux/module.h>
  24 #include <linux/pci.h>
  25 #include <linux/kmod.h>
  26 #include <linux/proc_fs.h>
  27 #include <linux/timer.h>
  28 #include <linux/version.h>
  29 #include <asm/uaccess.h>
  30
  31 #ifndef LINUX_2_4
  32 #include <linux/workqueue.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/netlink.h>
  35 #include <net/sock.h>
  36 extern struct sock *uevent_sock;
  37 extern u64 uevent_next_seqnum(void);
  38 #else
  39 #include <linux/tqueue.h>
  40 #define INIT_WORK INIT_TQUEUE
  41 #define schedule_work schedule_task
  42 #define work_struct tq_struct
  43 #endif
  44
  45 #include "gpio.h"
  46 #include "diag.h"
  47 #define getvar(str) (nvram_get(str)?:"")
  48
  49 static inline int startswith (char *source, char *cmp) { return !strncmp(source,cmp,strlen(cmp)); }
  50 static int fill_event(struct event_t *);
  51 static unsigned int gpiomask = 0;
  52 module_param(gpiomask, int, 0644);
  53
  54 enum {
  55         /* Linksys */
  56         WAP54GV1,
  57         WAP54GV2,
  58         WAP54GV3,
  59         WRT54GV1,
  60         WRT54G,
  61         WRTSL54GS,
  62         WRT54G3G,
  63         WRT160N,
  64         WRT300NV11,
  65         WRT350N,
  66         WRT600N,
  67         WRT600NV11,
  68         WRT610N,
  69
  70         /* ASUS */
  71         WLHDD,
  72         WL300G,
  73         WL320GE,
  74         WL330GE,
  75         WL500G,
  76         WL500GD,
  77         WL500GP,
  78         WL500GPV2,
  79         WL500W,
  80         WL520GC,
  81         WL520GU,
  82         ASUS_4702,
  83         WL700GE,
  84
  85         /* Buffalo */
  86         WBR2_G54,
  87         WHR_G54S,
  88         WHR_HP_G54,
  89         WHR_G125,
  90         WHR2_A54G54,
  91         WLA2_G54L,
  92         WZR_G300N,
  93         WZR_RS_G54,
  94         WZR_RS_G54HP,
  95         BUFFALO_UNKNOWN,
  96         BUFFALO_UNKNOWN_4710,
  97
  98         /* Siemens */
  99         SE505V1,
 100         SE505V2,
 101
 102         /* US Robotics */
 103         USR5461,
 104
 105         /* Dell */
 106         TM2300,
 107         TM2300V2,
 108
 109         /* Motorola */
 110         WE800G,
 111         WR850GV1,
 112         WR850GV2V3,
 113         WR850GP,
 114
 115         /* Belkin */
 116         BELKIN_UNKNOWN,
 117
 118         /* Netgear */
 119         WGT634U,
 120
 121         /* Trendware */
 122         TEW411BRPP,
 123
 124         /* SimpleTech */
 125         STI_NAS,
 126
 127         /* D-Link */
 128         DIR130,
 129         DIR320,
 130         DIR330,
 131         DWL3150,
 132
 133         /* Sitecom */
 134         WL105B,
 135
 136         /* Western Digital */
 137         WDNetCenter,
 138
 139         /* Askey */
 140         RT210W,
 141 };
 142
 143 static void __init bcm4780_init(void) {
 144                 int pin = 1 << 3;
 145
 146                 /* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 147                 printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
 148                 gpio_outen(pin, pin);
 149                 gpio_control(pin, 0);
 150                 gpio_out(pin, pin);
 151
 152                 /* Wait 5s, so the HDD can spin up */
 153                 set_current_state(TASK_INTERRUPTIBLE);
 154                 schedule_timeout(HZ * 5);
 155 }
 156
 157 static void __init NetCenter_init(void) {
 158                 /* unset pin 6 (+12V) */
 159                 int pin = 1 << 6;
 160                 gpio_outen(pin, pin);
 161                 gpio_control(pin, 0);
 162                 gpio_out(pin, pin);
 163                 /* unset pin 1 (turn off red led, blue will light alone if +5V comes up) */
 164                 pin = 1 << 1;
 165                 gpio_outen(pin, pin);
 166                 gpio_control(pin, 0);
 167                 gpio_out(pin, pin);
 168                 /* unset pin 3 (+5V) and wait 5 seconds (harddisk spin up) */
 169                 bcm4780_init();
 170 }
 171
 172 static void __init bcm57xx_init(void) {
 173         int pin = 1 << 2;
 174
 175 #ifndef LINUX_2_4
 176         /* FIXME: switch comes up, but port mappings/vlans not right */
 177         gpio_outen(pin, pin);
 178         gpio_control(pin, 0);
 179         gpio_out(pin, pin);
 180 #endif
 181 }
 182
 183 static struct platform_t __initdata platforms[] = {
 184         /* Linksys */
 185         [WAP54GV1] = {
 186                 .name           = "Linksys WAP54G V1",
 187                 .buttons        = {
 188                         { .name = "reset",      .gpio = 1 << 0 },
 189                 },
 190                 .leds           = {
 191                         { .name = "diag",       .gpio = 1 << 3 },
 192                         { .name = "wlan",       .gpio = 1 << 4 },
 193                 },
 194         },
 195         [WAP54GV2] = {
 196                 .name           = "Linksys WAP54G V2",
 197                 .buttons        = {
 198                         { .name = "reset",      .gpio = 1 << 0 },
 199                 },
 200                 .leds           = {
 201                         { .name = "wlan",       .gpio = 1 << 5, .polarity = REVERSE },
 202                         /* GPIO 6 is b44 (eth0, LAN) PHY power */
 203                 },
 204         },
 205         [WAP54GV3] = {
 206                 .name           = "Linksys WAP54G V3",
 207                 .buttons        = {
 208                         /* FIXME: verify this */
 209                         { .name = "reset",      .gpio = 1 << 7 },
 210                         { .name = "ses",        .gpio = 1 << 0 },
 211                 },
 212                 .leds           = {
 213                         /* FIXME: diag? */
 214                         { .name = "ses",        .gpio = 1 << 1 },
 215                 },
 216         },
 217         [WRT54GV1] = {
 218                 .name           = "Linksys WRT54G V1.x",
 219                 .buttons        = {
 220                         { .name = "reset",      .gpio = 1 << 6 },
 221                 },
 222                 .leds           = {
 223                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 224                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 225                 },
 226         },
 227         [WRT54G] = {
 228                 .name           = "Linksys WRT54G/GS/GL",
 229                 .buttons        = {
 230                         { .name = "reset",      .gpio = 1 << 6 },
 231                         { .name = "ses",        .gpio = 1 << 4 },
 232                 },
 233                 .leds           = {
 234                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 235                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 236                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 237                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 238                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 239                 },
 240         },
 241         [WRTSL54GS] = {
 242                 .name           = "Linksys WRTSL54GS",
 243                 .buttons        = {
 244                         { .name = "reset",      .gpio = 1 << 6 },
 245                         { .name = "ses",        .gpio = 1 << 4 },
 246                 },
 247                 .leds           = {
 248                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 249                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 250                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 251                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 252                 },
 253         },
 254         [WRT54G3G] = {
 255                 .name           = "Linksys WRT54G3G",
 256                 .buttons        = {
 257                         { .name = "reset",      .gpio = 1 << 6 },
 258                         { .name = "3g",         .gpio = 1 << 4 },
 259                 },
 260                 .leds           = {
 261                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 262                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 263                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 264                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 265                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 266                 },
 267         },
 268         [WRT160N] = {
 269                 .name           = "Linksys WRT160N",
 270                 .buttons        = {
 271                         { .name = "reset",      .gpio = 1 << 6 },
 272                         { .name = "ses",        .gpio = 1 << 4 },
 273                 },
 274                 .leds           = {
 275                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 276                         { .name = "ses_blue",   .gpio = 1 << 5, .polarity = REVERSE },
 277                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 278                 },
 279         },
 280         [WRT300NV11] = {
 281                 .name           = "Linksys WRT300N V1.1",
 282                 .buttons        = {
 283                         { .name = "reset",     .gpio = 1 << 6 }, // "Reset" on back panel
 284                         { .name = "ses",       .gpio = 1 << 4 }, // "Reserved" on top panel
 285                 },
 286                 .leds           = {
 287                         { .name = "power",     .gpio = 1 << 1, .polarity = NORMAL  }, // "Power"
 288                         { .name = "ses_amber", .gpio = 1 << 3, .polarity = REVERSE }, // "Security" Amber
 289                         { .name = "ses_green", .gpio = 1 << 5, .polarity = REVERSE }, // "Security" Green
 290                 },
 291                 .platform_init = bcm57xx_init,
 292         },
 293         [WRT350N] = {
 294                 .name           = "Linksys WRT350N",
 295                 .buttons        = {
 296                         { .name = "reset",      .gpio = 1 << 6 },
 297                         { .name = "ses",        .gpio = 1 << 8 },
 298                 },
 299                 .leds           = {
 300                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 301                         { .name = "ses_amber",  .gpio = 1 << 3, .polarity = REVERSE },
 302                         { .name = "ses_green",  .gpio = 1 << 9, .polarity = REVERSE },
 303                         { .name = "usb_blink",  .gpio = 1 << 10, .polarity = REVERSE },
 304                         { .name = "usb",        .gpio = 1 << 11, .polarity = REVERSE },
 305                 },
 306                 .platform_init = bcm57xx_init,
 307         },
 308         [WRT600N] = {
 309                 .name           = "Linksys WRT600N",
 310                 .buttons        = {
 311                         { .name = "reset",      .gpio = 1 << 6 },
 312                         { .name = "ses",        .gpio = 1 << 7 },
 313                 },
 314                 .leds           = {
 315                         { .name = "power",              .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 316                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 317                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 318                         { .name = "wl0_ses_green",      .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 319                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 320                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 321                 },
 322                 .platform_init = bcm57xx_init,
 323         },
 324         [WRT600NV11] = {
 325                 .name           = "Linksys WRT600N V1.1",
 326                 .buttons        = {
 327                         { .name = "reset",      .gpio = 1 << 6 },
 328                         { .name = "ses",        .gpio = 1 << 7 },
 329                 },
 330                 .leds           = {
 331                         { .name = "power",             .gpio = 1 << 2,  .polarity = REVERSE }, // Power LED
 332                         { .name = "usb",                .gpio = 1 << 3,  .polarity = REVERSE }, // USB LED
 333                         { .name = "wl0_ses_amber",      .gpio = 1 << 8,  .polarity = REVERSE }, // 2.4Ghz LED Amber
 334                         { .name = "wl0_ses_green",     .gpio = 1 << 9,  .polarity = REVERSE }, // 2.4Ghz LED Green
 335                         { .name = "wl1_ses_amber",      .gpio = 1 << 10, .polarity = REVERSE }, // 5.6Ghz LED Amber
 336                         { .name = "wl1_ses_green",      .gpio = 1 << 11, .polarity = REVERSE }, // 5.6Ghz LED Green
 337                 },
 338                 .platform_init = bcm57xx_init,
 339         },
 340         [WRT610N] = {
 341                 .name           = "Linksys WRT610N",
 342                 .buttons        = {
 343                         { .name = "reset",      .gpio = 1 << 6 },
 344                         { .name = "ses",        .gpio = 1 << 8 },
 345                 },
 346                 .leds           = {
 347                         { .name = "power",      .gpio = 1 << 1,  .polarity = NORMAL }, // Power LED
 348                         { .name = "usb",        .gpio = 1 << 0,  .polarity = REVERSE }, // USB LED
 349                         { .name = "ses_amber",  .gpio = 1 << 3,  .polarity = REVERSE }, // WiFi protected setup LED amber
 350                         { .name = "ses_blue",   .gpio = 1 << 9,  .polarity = REVERSE }, // WiFi protected setup LED blue
 351                 },
 352         },
 353         /* Asus */
 354         [WLHDD] = {
 355                 .name           = "ASUS WL-HDD",
 356                 .buttons        = {
 357                         { .name = "reset",      .gpio = 1 << 6 },
 358                 },
 359                 .leds           = {
 360                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 361                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 362                 },
 363         },
 364         [WL300G] = {
 365                 .name           = "ASUS WL-300g",
 366                 .buttons        = {
 367                         { .name = "reset",      .gpio = 1 << 6 },
 368                 },
 369                 .leds           = {
 370                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 371                 },
 372         },
 373         [WL320GE] = {
 374                 .name           = "ASUS WL-320gE/WL-320gP",
 375                 .buttons        = {
 376                         { .name = "reset",      .gpio = 1 << 6 },
 377                 },
 378                 .leds           = {
 379                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 380                         { .name = "power",      .gpio = 1 << 2, .polarity = REVERSE },
 381                         { .name = "link",       .gpio = 1 << 11, .polarity = REVERSE },
 382                 },
 383         },
 384         [WL330GE] = {
 385                 .name           = "ASUS WL-330gE",
 386                 .buttons        = {
 387                         { .name = "reset",      .gpio = 1 << 2 },
 388                 },
 389                 .leds           = {
 390                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 391                 },
 392         },
 393         [WL500G] = {
 394                 .name           = "ASUS WL-500g",
 395                 .buttons        = {
 396                         { .name = "reset",      .gpio = 1 << 6 },
 397                 },
 398                 .leds           = {
 399                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 400                 },
 401         },
 402         [WL500GD] = {
 403                 .name           = "ASUS WL-500g Deluxe",
 404                 .buttons        = {
 405                         { .name = "reset",      .gpio = 1 << 6 },
 406                 },
 407                 .leds           = {
 408                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 409                 },
 410         },
 411         [WL500GP] = {
 412                 .name           = "ASUS WL-500g Premium",
 413                 .buttons        = {
 414                         { .name = "reset",      .gpio = 1 << 0 },
 415                         { .name = "ses",        .gpio = 1 << 4 },
 416                 },
 417                 .leds           = {
 418                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 419                 },
 420         },
 421         [WL500GPV2] = {
 422                 .name           = "ASUS WL-500g Premium V2",
 423                 .buttons        = {
 424                         { .name = "reset",      .gpio = 1 << 2 },
 425                         { .name = "ses",        .gpio = 1 << 3 },
 426                 },
 427                 .leds           = {
 428                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 429                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 430                 },
 431         },
 432         [WL500W] = {
 433                 .name           = "ASUS WL-500W",
 434                 .buttons        = {
 435                         { .name = "reset",      .gpio = 1 << 6 },
 436                         { .name = "ses",        .gpio = 1 << 7 },
 437                 },
 438                 .leds           = {
 439                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 440                 },
 441         },
 442         [WL520GC] = {
 443                 .name           = "ASUS WL-520GC",
 444                 .buttons        = {
 445                         { .name = "reset",      .gpio = 1 << 2 },
 446                         { .name = "ses",        .gpio = 1 << 3 },
 447                 },
 448                 .leds           = {
 449                 { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 450                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 451                 },
 452         },
 453         [WL520GU] = {
 454                 .name           = "ASUS WL-520gU",
 455                 .buttons        = {
 456                         { .name = "reset",      .gpio = 1 << 2 },
 457                         { .name = "ses",        .gpio = 1 << 3 },
 458                 },
 459                 .leds           = {
 460                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 461                         { .name = "wlan",       .gpio = 1 << 1, .polarity = REVERSE },
 462                 },
 463         },
 464         [ASUS_4702] = {
 465                 .name           = "ASUS (unknown, BCM4702)",
 466                 .buttons        = {
 467                         { .name = "reset",      .gpio = 1 << 6 },
 468                 },
 469                 .leds           = {
 470                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 471                 },
 472         },
 473         [WL700GE] = {
 474                 .name           = "ASUS WL-700gE",
 475                 .buttons        = {
 476                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 477                         { .name = "ses",        .gpio = 1 << 4 }, // on back, actual name ezsetup
 478                         { .name = "power",      .gpio = 1 << 0 }, // on front
 479                         { .name = "copy",       .gpio = 1 << 6 }, // on front
 480                 },
 481                 .leds           = {
 482 #if 0
 483                         // GPIO that controls power led also enables/disables some essential functions
 484                         // - power to HDD
 485                         // - switch leds
 486                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },  // actual name power
 487 #endif
 488                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 489                 },
 490                 .platform_init = bcm4780_init,
 491         },
 492         /* Buffalo */
 493         [WHR_G54S] = {
 494                 .name           = "Buffalo WHR-G54S",
 495                 .buttons        = {
 496                         { .name = "reset",      .gpio = 1 << 4 },
 497                         { .name = "bridge",     .gpio = 1 << 5 },
 498                         { .name = "ses",        .gpio = 1 << 0 },
 499                 },
 500                 .leds           = {
 501                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 502                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 503                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 504                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 505                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 506                 },
 507         },
 508         [WBR2_G54] = {
 509                 .name           = "Buffalo WBR2-G54",
 510                 /* FIXME: verify */
 511                 .buttons        = {
 512                         { .name = "reset",      .gpio = 1 << 7 },
 513                 },
 514                 .leds           = {
 515                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 516                 },
 517         },
 518         [WHR_HP_G54] = {
 519                 .name           = "Buffalo WHR-HP-G54",
 520                 .buttons        = {
 521                         { .name = "reset",      .gpio = 1 << 4 },
 522                         { .name = "bridge",     .gpio = 1 << 5 },
 523                         { .name = "ses",        .gpio = 1 << 0 },
 524                 },
 525                 .leds           = {
 526                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 527                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 528                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 529                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 530                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 531                 },
 532         },
 533         [WHR_G125] = {
 534                 .name           = "Buffalo WHR-G125",
 535                 .buttons        = {
 536                         { .name = "reset",      .gpio = 1 << 4 },
 537                         { .name = "bridge",     .gpio = 1 << 5 },
 538                         { .name = "ses",        .gpio = 1 << 0 },
 539                 },
 540                 .leds           = {
 541                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 542                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 543                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 544                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 545                         { .name = "wlan",       .gpio = 1 << 2, .polarity = REVERSE },
 546                 },
 547         },
 548         [WHR2_A54G54] = {
 549                 .name           = "Buffalo WHR2-A54G54",
 550                 .buttons        = {
 551                         { .name = "reset",      .gpio = 1 << 4 },
 552                 },
 553                 .leds           = {
 554                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 555                 },
 556         },
 557         [WLA2_G54L] = {
 558                 .name           = "Buffalo WLA2-G54L",
 559                 /* FIXME: verify */
 560                 .buttons        = {
 561                         { .name = "reset",      .gpio = 1 << 7 },
 562                 },
 563                 .leds           = {
 564                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 565                 },
 566         },
 567         [WZR_G300N] = {
 568                 .name           = "Buffalo WZR-G300N",
 569                 .buttons        = {
 570                         { .name = "reset",      .gpio = 1 << 4 },
 571                 },
 572                 .leds           = {
 573                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 574                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 575                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 576                 },
 577         },
 578         [WZR_RS_G54] = {
 579                 .name           = "Buffalo WZR-RS-G54",
 580                 .buttons        = {
 581                         { .name = "ses",        .gpio = 1 << 0 },
 582                         { .name = "reset",      .gpio = 1 << 4 },
 583                 },
 584                 .leds           = {
 585                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 586                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 587                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 588                 },
 589         },
 590         [WZR_RS_G54HP] = {
 591                 .name           = "Buffalo WZR-RS-G54HP",
 592                 .buttons        = {
 593                         { .name = "ses",        .gpio = 1 << 0 },
 594                         { .name = "reset",      .gpio = 1 << 4 },
 595                 },
 596                 .leds           = {
 597                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 598                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 599                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 600                 },
 601         },
 602         [BUFFALO_UNKNOWN] = {
 603                 .name           = "Buffalo (unknown)",
 604                 .buttons        = {
 605                         { .name = "reset",      .gpio = 1 << 7 },
 606                 },
 607                 .leds           = {
 608                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 609                 },
 610         },
 611         [BUFFALO_UNKNOWN_4710] = {
 612                 .name           = "Buffalo (unknown, BCM4710)",
 613                 .buttons        = {
 614                         { .name = "reset",      .gpio = 1 << 4 },
 615                 },
 616                 .leds           = {
 617                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 618                 },
 619         },
 620         /* Siemens */
 621         [SE505V1] = {
 622                 .name           = "Siemens SE505 V1",
 623                 .buttons        = {
 624                         /* No usable buttons */
 625                 },
 626                 .leds           = {
 627 //                      { .name = "power",      .gpio = 1 << 0  .polarity = REVERSE },  // Usable when retrofitting D26 (?)
 628                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },  // actual name WWW
 629                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 630                 },
 631         },
 632         [SE505V2] = {
 633                 .name           = "Siemens SE505 V2",
 634                 .buttons        = {
 635                         /* No usable buttons */
 636                 },
 637                 .leds           = {
 638                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 639                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },  // actual name WWW
 640                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 641                 },
 642         },
 643         /* US Robotics */
 644         [USR5461] = {
 645                 .name           = "U.S. Robotics USR5461",
 646                 .buttons        = {
 647                         /* No usable buttons */
 648                 },
 649                 .leds           = {
 650                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 651                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 652                 },
 653         },
 654         /* Dell */
 655         [TM2300] = {
 656                 .name           = "Dell TrueMobile 2300",
 657                 .buttons        = {
 658                         { .name = "reset",      .gpio = 1 << 0 },
 659                 },
 660                 .leds           = {
 661                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 662                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 663                 },
 664         },
 665         [TM2300V2] = {
 666                 .name           = "Dell TrueMobile 2300 v2",
 667                 .buttons        = {
 668                         { .name = "reset",      .gpio = 1 << 0 },
 669                 },
 670                 .leds           = {
 671                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 672                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 673                 },
 674         },
 675         /* Motorola */
 676         [WE800G] = {
 677                 .name           = "Motorola WE800G",
 678                 .buttons        = {
 679                         { .name = "reset",      .gpio = 1 << 0 },
 680                 },
 681                 .leds           = {
 682                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 683                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 684                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 685                 },
 686         },
 687         [WR850GV1] = {
 688                 .name           = "Motorola WR850G V1",
 689                 .buttons        = {
 690                         { .name = "reset",      .gpio = 1 << 0 },
 691                 },
 692                 .leds           = {
 693                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 694                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 695                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 696                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 697                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 698                 },
 699         },
 700         [WR850GV2V3] = {
 701                 .name           = "Motorola WR850G V2/V3",
 702                 .buttons        = {
 703                         { .name = "reset",      .gpio = 1 << 5 },
 704                 },
 705                 .leds           = {
 706                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 707                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 708                         { .name = "wan",        .gpio = 1 << 6, .polarity = INPUT },
 709                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 710                 },
 711         },
 712         [WR850GP] = {
 713                 .name           = "Motorola WR850GP",
 714                 .buttons        = {
 715                         { .name = "reset",      .gpio = 1 << 5 },
 716                 },
 717                 .leds           = {
 718                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 719                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 720                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 721                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 722                 },
 723         },
 724
 725         /* Belkin */
 726         [BELKIN_UNKNOWN] = {
 727                 .name           = "Belkin (unknown)",
 728                 /* FIXME: verify & add detection */
 729                 .buttons        = {
 730                         { .name = "reset",      .gpio = 1 << 7 },
 731                 },
 732                 .leds           = {
 733                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 734                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 735                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 736                 },
 737         },
 738         /* Netgear */
 739         [WGT634U] = {
 740                 .name           = "Netgear WGT634U",
 741                 .buttons        = {
 742                         { .name = "reset",      .gpio = 1 << 2 },
 743                 },
 744                 .leds           = {
 745                         { .name = "power",      .gpio = 1 << 3, .polarity = NORMAL },
 746                 },
 747         },
 748         /* Trendware */
 749         [TEW411BRPP] = {
 750                 .name           = "Trendware TEW411BRP+",
 751                 .buttons        = {
 752                         { /* No usable buttons */ },
 753                 },
 754                 .leds           = {
 755                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 756                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 757                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 758                 },
 759         },
 760         /* SimpleTech */
 761         [STI_NAS] = {
 762                 .name      = "SimpleTech SimpleShare NAS",
 763                 .buttons        = {
 764                         { .name = "reset",      .gpio = 1 << 7 }, // on back, hardwired, always resets device regardless OS state
 765                         { .name = "power",      .gpio = 1 << 0 }, // on back
 766                 },
 767                 .leds      = {
 768                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE }, // actual name ready
 769                 },
 770                 .platform_init = bcm4780_init,
 771         },
 772         /* D-Link */
 773         [DIR130] = {
 774                 .name     = "D-Link DIR-130",
 775                 .buttons        = {
 776                         { .name = "reset",      .gpio = 1 << 3},
 777                         { .name = "reserved",   .gpio = 1 << 7},
 778                 },
 779                 .leds      = {
 780                         { .name = "diag",       .gpio = 1 << 0},
 781                         { .name = "blue",       .gpio = 1 << 6},
 782                 },
 783         },
 784         [DIR320] = {
 785                 .name     = "D-Link DIR-320",
 786                 .buttons        = {
 787                         { .name = "reserved",   .gpio = 1 << 6},
 788                         { .name = "reset",      .gpio = 1 << 7},
 789                 },
 790                 .leds      = {
 791                         { .name = "wlan",       .gpio = 1 << 0, .polarity = NORMAL },
 792                         { .name = "diag",       .gpio = 1 << 1, .polarity = NORMAL }, /* "status led */
 793                         { .name = "red",        .gpio = 1 << 3, .polarity = REVERSE },
 794                         { .name = "blue",       .gpio = 1 << 4, .polarity = REVERSE },
 795                         { .name = "usb",        .gpio = 1 << 5, .polarity = NORMAL },
 796                 },
 797         },
 798         [DIR330] = {
 799                 .name     = "D-Link DIR-330",
 800                 .buttons        = {
 801                         { .name = "reset",      .gpio = 1 << 3},
 802                         { .name = "reserved",   .gpio = 1 << 7},
 803                 },
 804                 .leds      = {
 805                         { .name = "diag",       .gpio = 1 << 0},
 806                         { .name = "usb",        .gpio = 1 << 4},
 807                         { .name = "blue",       .gpio = 1 << 6},
 808                 },
 809         },
 810         [DWL3150] = {
 811                 .name   = "D-Link DWL-3150",
 812                 .buttons        = {
 813                         { .name = "reset",      .gpio = 1 << 7},
 814                 },
 815                 .leds     = {
 816                         { .name = "diag",       .gpio = 1 << 2},
 817                         { .name = "status",     .gpio = 1 << 1},
 818                 },
 819         },
 820         /* Double check */
 821         [WL105B] = {
 822                 .name   = "Sitecom WL-105b",
 823                 .buttons        = {
 824                         { .name = "reset",      .gpio = 1 << 10},
 825                 },
 826                 .leds     = {
 827                         { .name = "wlan",       .gpio = 1 << 4},
 828                         { .name = "power",      .gpio = 1 << 3},
 829                 },
 830         },
 831         /* Western Digital Net Center */
 832         [WDNetCenter] = {
 833                 .name   = "Western Digital NetCenter",
 834                 .buttons        = {
 835                         { .name = "power",      .gpio = 1 << 0},
 836                         { .name = "reset",      .gpio = 1 << 7},
 837                 },
 838                 .platform_init = NetCenter_init,
 839         },
 840         /* Askey (and clones) */
 841         [RT210W] = {
 842                 .name           = "Askey RT210W",
 843                 .buttons        = {
 844                         /* Power button is hard-wired to hardware reset */
 845                         /* but is also connected to GPIO 7 (probably for bootloader recovery)  */
 846                         { .name = "power",      .gpio = 1 << 7},
 847                 },
 848                 .leds           = {
 849                         /* These were verified and named based on Belkin F5D4230-4 v1112 */
 850                         { .name = "connected",  .gpio = 1 << 0, .polarity = REVERSE },
 851                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 852                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 853                 },
 854         },
 855 };
 856
 857 static struct platform_t __init *platform_detect(void)
 858 {
 859         char *boardnum, *boardtype, *buf;
 860
 861         if (strcmp(getvar("nvram_type"), "cfe") == 0)
 862                 return &platforms[WGT634U];
 863
 864         /* Look for a model identifier */
 865
 866         /* Based on "model_name" */
 867         if ((buf = nvram_get("model_name"))) {
 868                 if (!strcmp(buf, "DIR-130"))
 869                         return &platforms[DIR130];
 870                 if (!strcmp(buf, "DIR-330"))
 871                         return &platforms[DIR330];
 872         }
 873
 874         /* Based on "wsc_modelname */
 875         if ((buf = nvram_get("wsc_modelname"))) {
 876                 if (!strcmp(buf, "WRT610N"))
 877                         return &platforms[WRT610N];
 878         }
 879
 880         /* Based on "model_no" */
 881         if ((buf = nvram_get("model_no"))) {
 882                 if (startswith(buf,"WL700")) /* WL700* */
 883                         return &platforms[WL700GE];
 884         }
 885
 886         /* Based on "hardware_version" */
 887         if ((buf = nvram_get("hardware_version"))) {
 888                 if (startswith(buf,"WL500GPV2-")) /* WL500GPV2-* */
 889                         return &platforms[WL500GPV2];
 890                 if (startswith(buf,"WL520GC-")) /* WL520GU-* */
 891                         return &platforms[WL520GC];
 892                 if (startswith(buf,"WL520GU-")) /* WL520GU-* */
 893                         return &platforms[WL520GU];
 894                 if (startswith(buf,"WL330GE-")) /* WL330GE-* */
 895                         return &platforms[WL330GE];
 896         }
 897
 898         /* Based on "ModelId" */
 899         if ((buf = nvram_get("ModelId"))) {
 900                 if (!strcmp(buf, "WR850GP"))
 901                         return &platforms[WR850GP];
 902                 if (!strcmp(buf, "WR850G"))
 903                         return &platforms[WR850GV2V3];
 904                 if (!strcmp(buf, "WX-5565") && !strcmp(getvar("boardtype"),"bcm94710ap"))
 905                         return &platforms[TM2300]; /* Dell TrueMobile 2300 */
 906                 if (startswith(buf,"WE800G")) /* WE800G* */
 907                         return &platforms[WE800G];
 908         }
 909
 910         /* Buffalo */
 911         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 912                 /* Buffalo hardware, check id for specific hardware matches */
 913                 if (!strcmp(buf, "29bb0332"))
 914                         return &platforms[WBR2_G54];
 915                 if (!strcmp(buf, "29129"))
 916                         return &platforms[WLA2_G54L];
 917                 if (!strcmp(buf, "30189"))
 918                         return &platforms[WHR_HP_G54];
 919                 if (!strcmp(buf, "32093"))
 920                         return &platforms[WHR_G125];
 921                 if (!strcmp(buf, "30182"))
 922                         return &platforms[WHR_G54S];
 923                 if (!strcmp(buf, "290441dd"))
 924                         return &platforms[WHR2_A54G54];
 925                 if (!strcmp(buf, "31120"))
 926                         return &platforms[WZR_G300N];
 927                 if (!strcmp(buf, "30083"))
 928                         return &platforms[WZR_RS_G54];
 929                 if (!strcmp(buf, "30103"))
 930                         return &platforms[WZR_RS_G54HP];
 931         }
 932
 933         /* no easy model number, attempt to guess */
 934         boardnum = getvar("boardnum");
 935         boardtype = getvar("boardtype");
 936
 937         if (!strcmp(boardnum, "20070615")) { /* Linksys WRT600N  v1/V1.1 */
 938                 if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0") && !strcmp(getvar("switch_type"),"BCM5395"))
 939                         return &platforms[WRT600NV11];
 940
 941         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "0"))
 942                         return &platforms[WRT600N];
 943         }
 944
 945         if (startswith(getvar("pmon_ver"), "CFE")) {
 946                 /* CFE based - newer hardware */
 947                 if (!strcmp(boardnum, "42")) { /* Linksys */
 948                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("boot_hw_model"), "WRT300N") && !strcmp(getvar("boot_hw_ver"), "1.1"))
 949                                 return &platforms[WRT300NV11];
 950
 951                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), "1"))
 952                                 return &platforms[WRT350N];
 953
 954                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 955                                 return &platforms[WRT54G3G];
 956
 957                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 958                                 return &platforms[WRTSL54GS];
 959
 960                         if (!strcmp(boardtype, "0x0472"))
 961                                 return &platforms[WRT160N];
 962
 963                         /* default to WRT54G */
 964                         return &platforms[WRT54G];
 965                 }
 966                 if (!strcmp(boardnum, "1024") && !strcmp(boardtype, "0x0446"))
 967                         return &platforms[WAP54GV2];
 968
 969                 if (!strcmp(boardnum, "44") || !strcmp(boardnum, "44\r")) {
 970                         if (!strcmp(boardtype,"0x0101") || !strcmp(boardtype, "0x0101\r"))
 971                                 return &platforms[TM2300V2]; /* Dell TrueMobile 2300 v2 */
 972                 }
 973
 974                 if (!strcmp(boardnum, "45")) { /* ASUS */
 975                         if (!strcmp(boardtype,"0x042f"))
 976                                 return &platforms[WL500GP];
 977                         else if (!strcmp(boardtype,"0x0472"))
 978                                 return &platforms[WL500W];
 979                         else if (!strcmp(boardtype,"0x467"))
 980                                 return &platforms[WL320GE];
 981                         else
 982                                 return &platforms[WL500GD];
 983                 }
 984
 985                 if (!strcmp(boardnum, "10496"))
 986                         return &platforms[USR5461];
 987
 988                 if (!strcmp(getvar("boardtype"), "0x0101") && !strcmp(getvar("boardrev"), "0x10")) /* SE505V2 With Modified CFE */
 989                         return &platforms[SE505V2];
 990
 991                 if (!strcmp(boardtype, "0x048e") && !strcmp(getvar("boardrev"),"0x35") &&
 992                                 !strcmp(getvar("boardflags"), "0x750")) /* D-Link DIR-320 */
 993                         return &platforms[DIR320];
 994
 995                 if (!strncmp(boardnum, "TH",2) && !strcmp(boardtype,"0x042f")) {
 996                         return &platforms[WDNetCenter];
 997                 }
 998
 999         } else { /* PMON based - old stuff */
1000                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
1001                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
1002                         return &platforms[WR850GV1];
1003                 }
1004                 if (startswith(boardtype, "bcm94710dev")) {
1005                         if (!strcmp(boardnum, "42"))
1006                                 return &platforms[WRT54GV1];
1007                         if (simple_strtoul(boardnum, NULL, 0) == 2)
1008                                 return &platforms[WAP54GV1];
1009                 }
1010                 if (startswith(getvar("hardware_version"), "WL500-"))
1011                         return &platforms[WL500G];
1012                 if (startswith(getvar("hardware_version"), "WL300-")) {
1013                         /* Either WL-300g or WL-HDD, do more extensive checks */
1014                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
1015                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
1016                                 return &platforms[WLHDD];
1017                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
1018                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
1019                                 return &platforms[WL300G];
1020                 }
1021                 /* Sitecom WL-105b */
1022                 if (startswith(boardnum, "2") && simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 1)
1023                         return &platforms[WL105B];
1024
1025                 /* unknown asus stuff, probably bcm4702 */
1026                 if (startswith(boardnum, "asusX"))
1027                         return &platforms[ASUS_4702];
1028
1029                 /* bcm4702 based Askey RT210W clones, Including:
1030                  * Askey RT210W (duh?)
1031                  * Siemens SE505v1
1032                  * Belkin F5D7230-4 before version v1444 (MiniPCI slot, not integrated)
1033                  */
1034                 if (!strcmp(boardtype,"bcm94710r4")
1035                  && !strcmp(boardnum ,"100")
1036                  && !strcmp(getvar("pmon_ver"),"v1.03.12.bk")
1037                    ){
1038                         return &platforms[RT210W];
1039                 }
1040         }
1041
1042         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
1043                 if (startswith(boardtype, "bcm94710ap"))
1044                         return &platforms[BUFFALO_UNKNOWN_4710];
1045                 else
1046                         return &platforms[BUFFALO_UNKNOWN];
1047         }
1048
1049         if (startswith(getvar("CFEver"), "MotoWRv2") ||
1050                 startswith(getvar("CFEver"), "MotoWRv3") ||
1051                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
1052
1053                 return &platforms[WR850GV2V3];
1054         }
1055
1056         if (!strcmp(boardnum, "44") && !strcmp(getvar("boardflags"),"0x0388")) {  /* Trendware TEW-411BRP+ */
1057                 return &platforms[TEW411BRPP];
1058         }
1059
1060         if (startswith(boardnum, "04FN52")) /* SimpleTech SimpleShare */
1061                 return &platforms[STI_NAS];
1062
1063         if (!strcmp(getvar("boardnum"), "10") && !strcmp(getvar("boardrev"), "0x13")) /* D-Link DWL-3150 */
1064                 return &platforms[DWL3150];
1065
1066         /* not found */
1067         return NULL;
1068 }
1069
1070 static void register_buttons(struct button_t *b)
1071 {
1072         for (; b->name; b++)
1073                 platform.button_mask |= b->gpio;
1074
1075         platform.button_mask &= ~gpiomask;
1076
1077         gpio_outen(platform.button_mask, 0);
1078         gpio_control(platform.button_mask, 0);
1079         platform.button_polarity = gpio_in() & platform.button_mask;
1080         gpio_intpolarity(platform.button_mask, platform.button_polarity);
1081         gpio_setintmask(platform.button_mask, platform.button_mask);
1082
1083         gpio_set_irqenable(1, button_handler);
1084 }
1085
1086 static void unregister_buttons(struct button_t *b)
1087 {
1088         gpio_setintmask(platform.button_mask, 0);
1089
1090         gpio_set_irqenable(0, button_handler);
1091 }
1092
1093
1094 #ifndef LINUX_2_4
1095 static void add_msg(struct event_t *event, char *msg, int argv)
1096 {
1097         char *s;
1098
1099         if (argv)
1100                 return;
1101
1102         s = skb_put(event->skb, strlen(msg) + 1);
1103         strcpy(s, msg);
1104 }
1105
1106 static void hotplug_button(struct work_struct *work)
1107 {
1108         struct event_t *event = container_of(work, struct event_t, wq);
1109         char *s;
1110
1111         if (!uevent_sock)
1112                 return;
1113
1114         event->skb = alloc_skb(2048, GFP_KERNEL);
1115
1116         s = skb_put(event->skb, strlen(event->action) + 2);
1117         sprintf(s, "%s@", event->action);
1118         fill_event(event);
1119
1120         NETLINK_CB(event->skb).dst_group = 1;
1121         netlink_broadcast(uevent_sock, event->skb, 0, 1, GFP_KERNEL);
1122
1123         kfree(event);
1124 }
1125
1126 #else /* !LINUX_2_4 */
1127 static inline char *kzalloc(unsigned int size, unsigned int gfp)
1128 {
1129         char *p;
1130
1131         p = kmalloc(size, gfp);
1132         if (p == NULL)
1133                 return NULL;
1134
1135         memset(p, 0, size);
1136
1137         return p;
1138 }
1139
1140 static void add_msg(struct event_t *event, char *msg, int argv)
1141 {
1142         if (argv)
1143                 event->argv[event->anr++] = event->scratch;
1144         else
1145                 event->envp[event->enr++] = event->scratch;
1146
1147         event->scratch += sprintf(event->scratch, "%s", msg) + 1;
1148 }
1149
1150 static void hotplug_button(struct event_t *event)
1151 {
1152         char *scratch = kzalloc(256, GFP_KERNEL);
1153         event->scratch = scratch;
1154
1155         add_msg(event, hotplug_path, 1);
1156         add_msg(event, "button", 1);
1157         fill_event(event);
1158         call_usermodehelper (event->argv[0], event->argv, event->envp);
1159         kfree(scratch);
1160         kfree(event);
1161 }
1162 #endif /* !LINUX_2_4 */
1163
1164 static int fill_event (struct event_t *event)
1165 {
1166         static char buf[128];
1167
1168         add_msg(event, "HOME=/", 0);
1169         add_msg(event, "PATH=/sbin:/bin:/usr/sbin:/usr/bin", 0);
1170         add_msg(event, "SUBSYSTEM=button", 0);
1171         snprintf(buf, 128, "ACTION=%s", event->action);
1172         add_msg(event, buf, 0);
1173         snprintf(buf, 128, "BUTTON=%s", event->name);
1174         add_msg(event, buf, 0);
1175         snprintf(buf, 128, "SEEN=%ld", event->seen);
1176         add_msg(event, buf, 0);
1177 #ifndef LINUX_2_4
1178         snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
1179         add_msg(event, buf, 0);
1180 #endif
1181
1182         return 0;
1183 }
1184
1185
1186 #ifndef LINUX_2_4
1187 static irqreturn_t button_handler(int irq, void *dev_id)
1188 #else
1189 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
1190 #endif
1191 {
1192         struct button_t *b;
1193         u32 in, changed;
1194
1195         in = gpio_in() & platform.button_mask;
1196         gpio_intpolarity(platform.button_mask, in);
1197         changed = platform.button_polarity ^ in;
1198         platform.button_polarity = in;
1199
1200         changed &= ~gpio_outen(0, 0);
1201
1202         for (b = platform.buttons; b->name; b++) {
1203                 struct event_t *event;
1204
1205                 if (!(b->gpio & changed)) continue;
1206
1207                 b->pressed ^= 1;
1208
1209                 if ((event = (struct event_t *)kzalloc (sizeof(struct event_t), GFP_ATOMIC))) {
1210                         event->seen = (jiffies - b->seen)/HZ;
1211                         event->name = b->name;
1212                         event->action = b->pressed ? "pressed" : "released";
1213 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
1214                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
1215 #else
1216                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
1217 #endif
1218                         schedule_work(&event->wq);
1219                 }
1220
1221                 b->seen = jiffies;
1222         }
1223         return IRQ_HANDLED;
1224 }
1225
1226 static void register_leds(struct led_t *l)
1227 {
1228         struct proc_dir_entry *p;
1229         u32 mask = 0;
1230         u32 oe_mask = 0;
1231         u32 val = 0;
1232
1233         leds = proc_mkdir("led", diag);
1234         if (!leds)
1235                 return;
1236
1237         for(; l->name; l++) {
1238                 if (l->gpio & gpiomask)
1239                         continue;
1240
1241                 if (l->gpio & GPIO_TYPE_EXTIF) {
1242                         l->state = 0;
1243                         set_led_extif(l);
1244                 } else {
1245                         if (l->polarity != INPUT) oe_mask |= l->gpio;
1246                         mask |= l->gpio;
1247                         val |= (l->polarity == NORMAL)?0:l->gpio;
1248                 }
1249
1250                 if (l->polarity == INPUT) continue;
1251
1252                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
1253                         l->proc.type = PROC_LED;
1254                         l->proc.ptr = l;
1255                         p->data = (void *) &l->proc;
1256                         p->proc_fops = &diag_proc_fops;
1257                 }
1258         }
1259
1260         gpio_outen(mask, oe_mask);
1261         gpio_control(mask, 0);
1262         gpio_out(mask, val);
1263         gpio_setintmask(mask, 0);
1264 }
1265
1266 static void unregister_leds(struct led_t *l)
1267 {
1268         for(; l->name; l++)
1269                 remove_proc_entry(l->name, leds);
1270
1271         remove_proc_entry("led", diag);
1272 }
1273
1274 static void set_led_extif(struct led_t *led)
1275 {
1276         gpio_set_extif(led->gpio, led->state);
1277 }
1278
1279 static void led_flash(unsigned long dummy) {
1280         struct led_t *l;
1281         u32 mask = 0;
1282         u8 extif_blink = 0;
1283
1284         for (l = platform.leds; l->name; l++) {
1285                 if (l->flash) {
1286                         if (l->gpio & GPIO_TYPE_EXTIF) {
1287                                 extif_blink = 1;
1288                                 l->state = !l->state;
1289                                 set_led_extif(l);
1290                         } else {
1291                                 mask |= l->gpio;
1292                         }
1293                 }
1294         }
1295
1296         mask &= ~gpiomask;
1297         if (mask) {
1298                 u32 val = ~gpio_in();
1299
1300                 gpio_outen(mask, mask);
1301                 gpio_control(mask, 0);
1302                 gpio_out(mask, val);
1303         }
1304         if (mask || extif_blink) {
1305                 mod_timer(&led_timer, jiffies + FLASH_TIME);
1306         }
1307 }
1308
1309 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1310 {
1311 #ifdef LINUX_2_4
1312         struct inode *inode = file->f_dentry->d_inode;
1313         struct proc_dir_entry *dent = inode->u.generic_ip;
1314 #else
1315         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1316 #endif
1317         char *page;
1318         int len = 0;
1319
1320         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
1321                 return -ENOBUFS;
1322
1323         if (dent->data != NULL) {
1324                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1325                 switch (handler->type) {
1326                         case PROC_LED: {
1327                                 struct led_t * led = (struct led_t *) handler->ptr;
1328                                 if (led->flash) {
1329                                         len = sprintf(page, "f\n");
1330                                 } else {
1331                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1332                                                 len = sprintf(page, "%d\n", led->state);
1333                                         } else {
1334                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
1335                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
1336                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
1337                                         }
1338                                 }
1339                                 break;
1340                         }
1341                         case PROC_MODEL:
1342                                 len = sprintf(page, "%s\n", platform.name);
1343                                 break;
1344                         case PROC_GPIOMASK:
1345                                 len = sprintf(page, "0x%04x\n", gpiomask);
1346                                 break;
1347                 }
1348         }
1349         len += 1;
1350
1351         if (*ppos < len) {
1352                 len = min_t(int, len - *ppos, count);
1353                 if (copy_to_user(buf, (page + *ppos), len)) {
1354                         kfree(page);
1355                         return -EFAULT;
1356                 }
1357                 *ppos += len;
1358         } else {
1359                 len = 0;
1360         }
1361
1362         kfree(page);
1363         return len;
1364 }
1365
1366
1367 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1368 {
1369 #ifdef LINUX_2_4
1370         struct inode *inode = file->f_dentry->d_inode;
1371         struct proc_dir_entry *dent = inode->u.generic_ip;
1372 #else
1373         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
1374 #endif
1375         char *page;
1376         int ret = -EINVAL;
1377
1378         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
1379                 return -ENOBUFS;
1380
1381         if (copy_from_user(page, buf, count)) {
1382                 kfree(page);
1383                 return -EINVAL;
1384         }
1385         page[count] = 0;
1386
1387         if (dent->data != NULL) {
1388                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
1389                 switch (handler->type) {
1390                         case PROC_LED: {
1391                                 struct led_t *led = (struct led_t *) handler->ptr;
1392                                 int p = (led->polarity == NORMAL ? 0 : 1);
1393
1394                                 if (page[0] == 'f') {
1395                                         led->flash = 1;
1396                                         led_flash(0);
1397                                 } else {
1398                                         led->flash = 0;
1399                                         if (led->gpio & GPIO_TYPE_EXTIF) {
1400                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
1401                                                 set_led_extif(led);
1402                                         } else {
1403                                                 gpio_outen(led->gpio, led->gpio);
1404                                                 gpio_control(led->gpio, 0);
1405                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
1406                                         }
1407                                 }
1408                                 break;
1409                         }
1410                         case PROC_GPIOMASK:
1411                                 gpiomask = simple_strtoul(page, NULL, 0);
1412
1413                                 if (platform.buttons) {
1414                                         unregister_buttons(platform.buttons);
1415                                         register_buttons(platform.buttons);
1416                                 }
1417
1418                                 if (platform.leds) {
1419                                         unregister_leds(platform.leds);
1420                                         register_leds(platform.leds);
1421                                 }
1422                                 break;
1423                 }
1424                 ret = count;
1425         }
1426
1427         kfree(page);
1428         return ret;
1429 }
1430
1431 static int __init diag_init(void)
1432 {
1433         static struct proc_dir_entry *p;
1434         static struct platform_t *detected;
1435
1436         detected = platform_detect();
1437         if (!detected) {
1438                 printk(MODULE_NAME ": Router model not detected.\n");
1439                 return -ENODEV;
1440         }
1441         memcpy(&platform, detected, sizeof(struct platform_t));
1442
1443         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
1444         if (platform.platform_init != NULL) {
1445                 platform.platform_init();
1446         }
1447
1448         if (!(diag = proc_mkdir("diag", NULL))) {
1449                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
1450                 return -EINVAL;
1451         }
1452
1453         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
1454                 p->data = (void *) &proc_model;
1455                 p->proc_fops = &diag_proc_fops;
1456         }
1457
1458         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
1459                 p->data = (void *) &proc_gpiomask;
1460                 p->proc_fops = &diag_proc_fops;
1461         }
1462
1463         if (platform.buttons)
1464                 register_buttons(platform.buttons);
1465
1466         if (platform.leds)
1467                 register_leds(platform.leds);
1468
1469         return 0;
1470 }
1471
1472 static void __exit diag_exit(void)
1473 {
1474         del_timer(&led_timer);
1475
1476         if (platform.buttons)
1477                 unregister_buttons(platform.buttons);
1478
1479         if (platform.leds)
1480                 unregister_leds(platform.leds);
1481
1482         remove_proc_entry("model", diag);
1483         remove_proc_entry("gpiomask", diag);
1484         remove_proc_entry("diag", NULL);
1485 }
1486
1487 module_init(diag_init);
1488 module_exit(diag_exit);
1489
1490 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
1491 MODULE_LICENSE("GPL");