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