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  *                    Felix Fietkau <nbd@openwrt.org>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * $Id$
  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 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
  32 #include <linux/kobject.h>
  33 #include <linux/workqueue.h>
  34 #define hotplug_path uevent_helper
  35 #else
  36 #include <linux/tqueue.h>
  37 #define INIT_WORK INIT_TQUEUE
  38 #define schedule_work schedule_task
  39 #define work_struct tq_struct
  40 #endif
  41
  42 #include "gpio.h"
  43 #include "diag.h"
  44 #define getvar(str) (nvram_get(str)?:"")
  45
  46 static unsigned int gpiomask = 0;
  47 module_param(gpiomask, int, 0644);
  48
  49 enum {
  50         /* Linksys */
  51         WAP54GV1,
  52         WAP54GV3,
  53         WRT54GV1,
  54         WRT54G,
  55         WRTSL54GS,
  56         WRT54G3G,
  57         WRT350N,
  58
  59         /* ASUS */
  60         WLHDD,
  61         WL300G,
  62         WL500G,
  63         WL500GD,
  64         WL500GP,
  65         ASUS_4702,
  66
  67         /* Buffalo */
  68         WBR2_G54,
  69         WHR_G54S,
  70         WHR_HP_G54,
  71         WHR2_A54G54,
  72         WLA2_G54L,
  73         WZR_G300N,
  74         WZR_RS_G54,
  75         WZR_RS_G54HP,
  76         BUFFALO_UNKNOWN,
  77         BUFFALO_UNKNOWN_4710,
  78
  79         /* Siemens */
  80         SE505V1,
  81         SE505V2,
  82
  83         /* US Robotics */
  84         USR5461,
  85
  86         /* Dell */
  87         TM2300,
  88
  89         /* Motorola */
  90         WE800G,
  91         WR850GV1,
  92         WR850GV2V3,
  93
  94         /* Belkin */
  95         BELKIN_UNKNOWN,
  96
  97         /* Netgear */
  98         WGT634U,
  99
 100         /* Trendware */
 101         TEW411BRPP,
 102 };
 103
 104 static struct platform_t __initdata platforms[] = {
 105         /* Linksys */
 106         [WAP54GV1] = {
 107                 .name           = "Linksys WAP54G V1",
 108                 .buttons        = {
 109                         { .name = "reset",      .gpio = 1 << 0 },
 110                 },
 111                 .leds           = {
 112                         { .name = "diag",       .gpio = 1 << 3 },
 113                         { .name = "wlan",       .gpio = 1 << 4 },
 114                 },
 115         },
 116         [WAP54GV3] = {
 117                 .name           = "Linksys WAP54G V3",
 118                 .buttons        = {
 119                         /* FIXME: verify this */
 120                         { .name = "reset",      .gpio = 1 << 7 },
 121                         { .name = "ses",        .gpio = 1 << 0 },
 122                 },
 123                 .leds           = {
 124                         /* FIXME: diag? */
 125                         { .name = "ses",        .gpio = 1 << 1 },
 126                 },
 127         },
 128         [WRT54GV1] = {
 129                 .name           = "Linksys WRT54G V1.x",
 130                 .buttons        = {
 131                         { .name = "reset",      .gpio = 1 << 6 },
 132                 },
 133                 .leds           = {
 134                         { .name = "diag",       .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 135                         { .name = "dmz",        .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
 136                 },
 137         },
 138         [WRT54G] = {
 139                 .name           = "Linksys WRT54G/GS/GL",
 140                 .buttons        = {
 141                         { .name = "reset",      .gpio = 1 << 6 },
 142                         { .name = "ses",        .gpio = 1 << 4 },
 143                 },
 144                 .leds           = {
 145                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 146                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 147                         { .name = "ses_white",  .gpio = 1 << 2, .polarity = REVERSE },
 148                         { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
 149                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 150                 },
 151         },
 152         [WRTSL54GS] = {
 153                 .name           = "Linksys WRTSL54GS",
 154                 .buttons        = {
 155                         { .name = "reset",      .gpio = 1 << 6 },
 156                         { .name = "ses",        .gpio = 1 << 4 },
 157                 },
 158                 .leds           = {
 159                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 160                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 161                         { .name = "ses_white",  .gpio = 1 << 5, .polarity = REVERSE },
 162                         { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
 163                 },
 164         },
 165         [WRT54G3G] = {
 166                 .name           = "Linksys WRT54G3G",
 167                 .buttons        = {
 168                         { .name = "reset",      .gpio = 1 << 6 },
 169                         { .name = "3g",         .gpio = 1 << 4 },
 170                 },
 171                 .leds           = {
 172                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 173                         { .name = "dmz",        .gpio = 1 << 7, .polarity = REVERSE },
 174                         { .name = "3g_green",   .gpio = 1 << 2, .polarity = NORMAL },
 175                         { .name = "3g_blue",    .gpio = 1 << 3, .polarity = NORMAL },
 176                         { .name = "3g_blink",   .gpio = 1 << 5, .polarity = NORMAL },
 177                 },
 178         },
 179         [WRT350N] = {
 180                 .name           = "Linksys WRT350N",
 181                 .buttons        = {
 182                         { .name = "reset",      .gpio = 1 << 6 },
 183                         { .name = "ses",        .gpio = 1 << 8 },
 184                 },
 185                 .leds           = {
 186                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 187                         { .name = "ses",        .gpio = 1 << 3, .polarity = REVERSE },
 188                 },
 189         },
 190         /* Asus */
 191         [WLHDD] = {
 192                 .name           = "ASUS WL-HDD",
 193                 .buttons        = {
 194                         { .name = "reset",      .gpio = 1 << 6 },
 195                 },
 196                 .leds           = {
 197                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 198                         { .name = "usb",        .gpio = 1 << 2, .polarity = NORMAL },
 199                 },
 200         },
 201         [WL300G] = {
 202                 .name           = "ASUS WL-300g",
 203                 .buttons        = {
 204                         { .name = "reset",      .gpio = 1 << 6 },
 205                 },
 206                 .leds           = {
 207                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 208                 },
 209         },
 210         [WL500G] = {
 211                 .name           = "ASUS WL-500g",
 212                 .buttons        = {
 213                         { .name = "reset",      .gpio = 1 << 6 },
 214                 },
 215                 .leds           = {
 216                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 217                 },
 218         },
 219         [WL500GD] = {
 220                 .name           = "ASUS WL-500g Deluxe",
 221                 .buttons        = {
 222                         { .name = "reset",      .gpio = 1 << 6 },
 223                 },
 224                 .leds           = {
 225                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 226                 },
 227         },
 228         [WL500GP] = {
 229                 .name           = "ASUS WL-500g Premium",
 230                 .buttons        = {
 231                         { .name = "reset",      .gpio = 1 << 0 },
 232                         { .name = "ses",        .gpio = 1 << 4 },
 233                 },
 234                 .leds           = {
 235                         { .name = "power",      .gpio = 1 << 1, .polarity = REVERSE },
 236                 },
 237         },
 238         [ASUS_4702] = {
 239                 .name           = "ASUS (unknown, BCM4702)",
 240                 .buttons        = {
 241                         { .name = "reset",      .gpio = 1 << 6 },
 242                 },
 243                 .leds           = {
 244                         { .name = "power",      .gpio = 1 << 0, .polarity = REVERSE },
 245                 },
 246         },
 247         /* Buffalo */
 248         [WHR_G54S] = {
 249                 .name           = "Buffalo WHR-G54S",
 250                 .buttons        = {
 251                         { .name = "reset",      .gpio = 1 << 4 },
 252                         { .name = "bridge",     .gpio = 1 << 5 },
 253                         { .name = "ses",        .gpio = 1 << 0 },
 254                 },
 255                 .leds           = {
 256                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 257                         { .name = "internal",   .gpio = 1 << 3, .polarity = REVERSE },
 258                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 259                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 260                 },
 261         },
 262         [WBR2_G54] = {
 263                 .name           = "Buffalo WBR2-G54",
 264                 /* FIXME: verify */
 265                 .buttons        = {
 266                         { .name = "reset",      .gpio = 1 << 7 },
 267                 },
 268                 .leds           = {
 269                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 270                 },
 271         },
 272         [WHR_HP_G54] = {
 273                 .name           = "Buffalo WHR-HP-G54",
 274                 .buttons        = {
 275                         { .name = "reset",      .gpio = 1 << 4 },
 276                         { .name = "bridge",     .gpio = 1 << 5 },
 277                         { .name = "ses",        .gpio = 1 << 0 },
 278                 },
 279                 .leds           = {
 280                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 281                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 282                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 283                 },
 284         },
 285         [WHR2_A54G54] = {
 286                 .name           = "Buffalo WHR2-A54G54",
 287                 .buttons        = {
 288                         { .name = "reset",      .gpio = 1 << 4 },
 289                 },
 290                 .leds           = {
 291                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 292                 },
 293         },
 294         [WLA2_G54L] = {
 295                 .name           = "Buffalo WLA2-G54L",
 296                 /* FIXME: verify */
 297                 .buttons        = {
 298                         { .name = "reset",      .gpio = 1 << 7 },
 299                 },
 300                 .leds           = {
 301                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 302                 },
 303         },
 304         [WZR_G300N] = {
 305                 .name           = "Buffalo WZR-G300N",
 306                 .buttons        = {
 307                         { .name = "reset",      .gpio = 1 << 4 },
 308                 },
 309                 .leds           = {
 310                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 311                         { .name = "bridge",     .gpio = 1 << 1, .polarity = REVERSE },
 312                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 313                 },
 314         },
 315         [WZR_RS_G54] = {
 316                 .name           = "Buffalo WZR-RS-G54",
 317                 .buttons        = {
 318                         { .name = "ses",        .gpio = 1 << 0 },
 319                         { .name = "reset",      .gpio = 1 << 4 },
 320                 },
 321                 .leds           = {
 322                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 323                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 324                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 325                 },
 326         },
 327         [WZR_RS_G54HP] = {
 328                 .name           = "Buffalo WZR-RS-G54HP",
 329                 .buttons        = {
 330                         { .name = "ses",        .gpio = 1 << 0 },
 331                         { .name = "reset",      .gpio = 1 << 4 },
 332                 },
 333                 .leds           = {
 334                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 335                         { .name = "ses",        .gpio = 1 << 6, .polarity = REVERSE },
 336                         { .name = "vpn",        .gpio = 1 << 1, .polarity = REVERSE },
 337                 },
 338         },
 339         [BUFFALO_UNKNOWN] = {
 340                 .name           = "Buffalo (unknown)",
 341                 .buttons        = {
 342                         { .name = "reset",      .gpio = 1 << 7 },
 343                 },
 344                 .leds           = {
 345                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 346                 },
 347         },
 348         [BUFFALO_UNKNOWN_4710] = {
 349                 .name           = "Buffalo (unknown, BCM4710)",
 350                 .buttons        = {
 351                         { .name = "reset",      .gpio = 1 << 4 },
 352                 },
 353                 .leds           = {
 354                         { .name = "diag",       .gpio = 1 << 1, .polarity = REVERSE },
 355                 },
 356         },
 357         /* Siemens */
 358         [SE505V1] = {
 359                 .name           = "Siemens SE505 V1",
 360                 .buttons        = {
 361                         /* No usable buttons */
 362                 },
 363                 .leds           = {
 364                         { .name = "dmz",        .gpio = 1 << 4, .polarity = REVERSE },
 365                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 366                 },
 367         },
 368         [SE505V2] = {
 369                 .name           = "Siemens SE505 V2",
 370                 .buttons        = {
 371                         /* No usable buttons */
 372                 },
 373                 .leds           = {
 374                         { .name = "power",      .gpio = 1 << 5, .polarity = REVERSE },
 375                         { .name = "dmz",        .gpio = 1 << 0, .polarity = REVERSE },
 376                         { .name = "wlan",       .gpio = 1 << 3, .polarity = REVERSE },
 377                 },
 378         },
 379         /* US Robotics */
 380         [USR5461] = {
 381                 .name           = "U.S. Robotics USR5461",
 382                 .buttons        = {
 383                         /* No usable buttons */
 384                 },
 385                 .leds           = {
 386                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 387                         { .name = "printer",    .gpio = 1 << 1, .polarity = REVERSE },
 388                 },
 389         },
 390         /* Dell */
 391         [TM2300] = {
 392                 .name           = "Dell TrueMobile 2300",
 393                 .buttons        = {
 394                         { .name = "reset",      .gpio = 1 << 0 },
 395                 },
 396                 .leds           = {
 397                         { .name = "wlan",       .gpio = 1 << 6, .polarity = REVERSE },
 398                         { .name = "power",      .gpio = 1 << 7, .polarity = REVERSE },
 399                 },
 400         },
 401         /* Motorola */
 402         [WE800G] = {
 403                 .name           = "Motorola WE800G",
 404                 .buttons        = {
 405                         { .name = "reset",      .gpio = 1 << 0 },
 406                 },
 407                 .leds           = {
 408                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 409                         { .name = "diag",       .gpio = 1 << 2, .polarity = REVERSE },
 410                         { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
 411                 },
 412         },
 413         [WR850GV1] = {
 414                 .name           = "Motorola WR850G V1",
 415                 .buttons        = {
 416                         { .name = "reset",      .gpio = 1 << 0 },
 417                 },
 418                 .leds           = {
 419                         { .name = "power",      .gpio = 1 << 4, .polarity = NORMAL },
 420                         { .name = "diag",       .gpio = 1 << 3, .polarity = REVERSE },
 421                         { .name = "dmz",        .gpio = 1 << 6, .polarity = NORMAL },
 422                         { .name = "wlan_red",   .gpio = 1 << 5, .polarity = REVERSE },
 423                         { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
 424                 },
 425         },
 426         [WR850GV2V3] = {
 427                 .name           = "Motorola WR850G V2/V3",
 428                 .buttons        = {
 429                         { .name = "reset",      .gpio = 1 << 5 },
 430                 },
 431                 .leds           = {
 432                         { .name = "power",      .gpio = 1 << 1, .polarity = NORMAL },
 433                         { .name = "wlan",       .gpio = 1 << 0, .polarity = REVERSE },
 434                         { .name = "dmz",        .gpio = 1 << 6, .polarity = REVERSE },
 435                         { .name = "diag",       .gpio = 1 << 7, .polarity = REVERSE },
 436                 },
 437         },
 438         /* Belkin */
 439         [BELKIN_UNKNOWN] = {
 440                 .name           = "Belkin (unknown)",
 441                 /* FIXME: verify & add detection */
 442                 .buttons        = {
 443                         { .name = "reset",      .gpio = 1 << 7 },
 444                 },
 445                 .leds           = {
 446                         { .name = "power",      .gpio = 1 << 5, .polarity = NORMAL },
 447                         { .name = "wlan",       .gpio = 1 << 3, .polarity = NORMAL },
 448                         { .name = "connected",  .gpio = 1 << 0, .polarity = NORMAL },
 449                 },
 450         },
 451         /* Netgear */
 452         [WGT634U] = {
 453                 .name           = "Netgear WGT634U",
 454                 .buttons        = {
 455                         { .name = "reset",      .gpio = 1 << 2 },
 456                 },
 457                 .leds           = {
 458                         { .name = "power",      .gpio = 1 << 3, .polarity = REVERSE },
 459                 },
 460         },
 461         /* Trendware */
 462         [TEW411BRPP] = {
 463                 .name           = "Trendware TEW411BRP+",
 464                 .buttons        = {
 465                         { /* No usable buttons */ },
 466                 },
 467                 .leds           = {
 468                         { .name = "power",      .gpio = 1 << 7, .polarity = NORMAL },
 469                         { .name = "wlan",       .gpio = 1 << 1, .polarity = NORMAL },
 470                         { .name = "bridge",     .gpio = 1 << 6, .polarity = NORMAL },
 471                 },
 472         },
 473 };
 474
 475 static struct platform_t __init *platform_detect(void)
 476 {
 477         char *boardnum, *boardtype, *buf;
 478
 479         boardnum = getvar("boardnum");
 480         boardtype = getvar("boardtype");
 481         if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
 482                 /* CFE based - newer hardware */
 483                 if (!strcmp(boardnum, "42")) { /* Linksys */
 484                         if (!strcmp(boardtype, "0x478") && !strcmp(getvar("cardbus"), 1))
 485                                 return &platforms[WRT350N];
 486
 487                         if (!strcmp(boardtype, "0x0101") && !strcmp(getvar("boot_ver"), "v3.6"))
 488                                 return &platforms[WRT54G3G];
 489
 490                         if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
 491                                 return &platforms[WRTSL54GS];
 492
 493                         /* default to WRT54G */
 494                         return &platforms[WRT54G];
 495                 }
 496
 497                 if (!strcmp(boardnum, "45")) { /* ASUS */
 498                         if (!strcmp(boardtype,"0x042f"))
 499                                 return &platforms[WL500GP];
 500                         else
 501                                 return &platforms[WL500GD];
 502                 }
 503
 504                 if (!strcmp(boardnum, "10496"))
 505                         return &platforms[USR5461];
 506         } else { /* PMON based - old stuff */
 507
 508                 /* Dell TrueMobile 2300 */
 509                 if (!strcmp(getvar("ModelId"),"WX-5565"))
 510                         return &platforms[TM2300];
 511
 512                 if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
 513                         (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
 514                         if (!strncmp(getvar("ModelId"),"WE800G", 6))
 515                                 return &platforms[WE800G];
 516                         else
 517                                 return &platforms[WR850GV1];
 518                 }
 519                 if (!strncmp(boardtype, "bcm94710dev", 11)) {
 520                         if (!strcmp(boardnum, "42"))
 521                                 return &platforms[WRT54GV1];
 522                         if (simple_strtoul(boardnum, NULL, 0) == 2)
 523                                 return &platforms[WAP54GV1];
 524                 }
 525                 if (!strncmp(getvar("hardware_version"), "WL500-", 6))
 526                         return &platforms[WL500G];
 527                 if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
 528                         /* Either WL-300g or WL-HDD, do more extensive checks */
 529                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 530                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 1))
 531                                 return &platforms[WLHDD];
 532                         if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
 533                                 (simple_strtoul(getvar("et1phyaddr"), NULL, 0) == 10))
 534                                 return &platforms[WL300G];
 535                 }
 536
 537                 /* unknown asus stuff, probably bcm4702 */
 538                 if (!strncmp(boardnum, "asusX", 5))
 539                         return &platforms[ASUS_4702];
 540         }
 541
 542         if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
 543                 /* Buffalo hardware, check id for specific hardware matches */
 544                 if (!strcmp(buf, "29bb0332"))
 545                         return &platforms[WBR2_G54];
 546                 if (!strcmp(buf, "29129"))
 547                         return &platforms[WLA2_G54L];
 548                 if (!strcmp(buf, "30189"))
 549                         return &platforms[WHR_HP_G54];
 550                 if (!strcmp(buf, "30182"))
 551                         return &platforms[WHR_G54S];
 552                 if (!strcmp(buf, "290441dd"))
 553                         return &platforms[WHR2_A54G54];
 554                 if (!strcmp(buf, "31120"))
 555                         return &platforms[WZR_G300N];
 556                 if (!strcmp(buf, "30083"))
 557                         return &platforms[WZR_RS_G54];
 558                 if (!strcmp(buf, "30103"))
 559                         return &platforms[WZR_RS_G54HP];
 560         }
 561
 562         if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
 563                 if (!strncmp(boardtype, "bcm94710ap", 10))
 564                         return &platforms[BUFFALO_UNKNOWN_4710];
 565                 else
 566                         return &platforms[BUFFALO_UNKNOWN];
 567         }
 568
 569         if (!strcmp(getvar("CFEver"), "MotoWRv203") ||
 570                 !strcmp(getvar("MOTO_BOARD_TYPE"), "WR_FEM1")) {
 571
 572                 return &platforms[WR850GV2V3];
 573         }
 574
 575         if (!strcmp(boardnum, "44")) {  /* Trendware TEW-411BRP+ */
 576                 return &platforms[TEW411BRPP];
 577         }
 578
 579         /* not found */
 580         return NULL;
 581 }
 582
 583 static void register_buttons(struct button_t *b)
 584 {
 585         for (; b->name; b++)
 586                 platform.button_mask |= b->gpio;
 587
 588         platform.button_mask &= ~gpiomask;
 589
 590         gpio_outen(platform.button_mask, 0);
 591         gpio_control(platform.button_mask, 0);
 592         platform.button_polarity = gpio_in() & platform.button_mask;
 593         gpio_intpolarity(platform.button_mask, platform.button_polarity);
 594         gpio_intmask(platform.button_mask, platform.button_mask);
 595
 596         gpio_set_irqenable(1, button_handler);
 597 }
 598
 599 static void unregister_buttons(struct button_t *b)
 600 {
 601         gpio_intmask(platform.button_mask, 0);
 602
 603         gpio_set_irqenable(0, button_handler);
 604 }
 605
 606 static void hotplug_button(struct event_t *event)
 607 {
 608 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 609         call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
 610 #else
 611         call_usermodehelper (event->argv[0], event->argv, event->envp);
 612 #endif
 613         kfree(event);
 614 }
 615
 616 static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
 617 {
 618         struct button_t *b;
 619         u32 in, changed;
 620
 621         in = gpio_in() & platform.button_mask;
 622         gpio_intpolarity(platform.button_mask, in);
 623         changed = platform.button_polarity ^ in;
 624         platform.button_polarity = in;
 625
 626         changed &= ~gpio_outen(0, 0);
 627
 628         for (b = platform.buttons; b->name; b++) {
 629                 struct event_t *event;
 630
 631                 if (!(b->gpio & changed)) continue;
 632
 633                 b->pressed ^= 1;
 634
 635                 if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
 636                         int i;
 637                         char *scratch = event->buf;
 638
 639                         i = 0;
 640                         event->argv[i++] = hotplug_path;
 641                         event->argv[i++] = "button";
 642                         event->argv[i] = 0;
 643
 644                         i = 0;
 645                         event->envp[i++] = "HOME=/";
 646                         event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
 647                         event->envp[i++] = scratch;
 648                         scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
 649                         event->envp[i++] = scratch;
 650                         scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
 651                         event->envp[i++] = scratch;
 652                         scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
 653                         event->envp[i] = 0;
 654
 655                         INIT_WORK(&event->wq, (void *)(void *)hotplug_button, (void *)event);
 656                         schedule_work(&event->wq);
 657                 }
 658
 659                 b->seen = jiffies;
 660         }
 661         return IRQ_HANDLED;
 662 }
 663
 664 static void register_leds(struct led_t *l)
 665 {
 666         struct proc_dir_entry *p;
 667         u32 mask = 0;
 668         u32 val = 0;
 669
 670         leds = proc_mkdir("led", diag);
 671         if (!leds)
 672                 return;
 673
 674         for(; l->name; l++) {
 675                 if (l->gpio & gpiomask)
 676                         continue;
 677
 678                 if (l->gpio & GPIO_TYPE_EXTIF) {
 679                         l->state = 0;
 680                         set_led_extif(l);
 681                 } else {
 682                         mask |= l->gpio;
 683                         val |= (l->polarity == NORMAL)?0:l->gpio;
 684                 }
 685
 686                 if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
 687                         l->proc.type = PROC_LED;
 688                         l->proc.ptr = l;
 689                         p->data = (void *) &l->proc;
 690                         p->proc_fops = &diag_proc_fops;
 691                 }
 692         }
 693
 694         gpio_outen(mask, mask);
 695         gpio_control(mask, 0);
 696         gpio_out(mask, val);
 697 }
 698
 699 static void unregister_leds(struct led_t *l)
 700 {
 701         for(; l->name; l++)
 702                 remove_proc_entry(l->name, leds);
 703
 704         remove_proc_entry("led", diag);
 705 }
 706
 707 static void set_led_extif(struct led_t *led)
 708 {
 709         gpio_set_extif(led->gpio, led->state);
 710 }
 711
 712 static void led_flash(unsigned long dummy) {
 713         struct led_t *l;
 714         u32 mask = 0;
 715         u8 extif_blink = 0;
 716
 717         for (l = platform.leds; l->name; l++) {
 718                 if (l->flash) {
 719                         if (l->gpio & GPIO_TYPE_EXTIF) {
 720                                 extif_blink = 1;
 721                                 l->state = !l->state;
 722                                 set_led_extif(l);
 723                         } else {
 724                                 mask |= l->gpio;
 725                         }
 726                 }
 727         }
 728
 729         mask &= ~gpiomask;
 730         if (mask) {
 731                 u32 val = ~gpio_in();
 732
 733                 gpio_outen(mask, mask);
 734                 gpio_control(mask, 0);
 735                 gpio_out(mask, val);
 736         }
 737         if (mask || extif_blink) {
 738                 mod_timer(&led_timer, jiffies + FLASH_TIME);
 739         }
 740 }
 741
 742 static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 743 {
 744 #ifdef LINUX_2_4
 745         struct inode *inode = file->f_dentry->d_inode;
 746         struct proc_dir_entry *dent = inode->u.generic_ip;
 747 #else
 748         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 749 #endif
 750         char *page;
 751         int len = 0;
 752
 753         if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
 754                 return -ENOBUFS;
 755
 756         if (dent->data != NULL) {
 757                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 758                 switch (handler->type) {
 759                         case PROC_LED: {
 760                                 struct led_t * led = (struct led_t *) handler->ptr;
 761                                 if (led->flash) {
 762                                         len = sprintf(page, "f\n");
 763                                 } else {
 764                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 765                                                 len = sprintf(page, "%d\n", led->state);
 766                                         } else {
 767                                                 u32 in = (gpio_in() & led->gpio ? 1 : 0);
 768                                                 u8 p = (led->polarity == NORMAL ? 0 : 1);
 769                                                 len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 770                                         }
 771                                 }
 772                                 break;
 773                         }
 774                         case PROC_MODEL:
 775                                 len = sprintf(page, "%s\n", platform.name);
 776                                 break;
 777                         case PROC_GPIOMASK:
 778                                 len = sprintf(page, "0x%04x\n", gpiomask);
 779                                 break;
 780                 }
 781         }
 782         len += 1;
 783
 784         if (*ppos < len) {
 785                 len = min_t(int, len - *ppos, count);
 786                 if (copy_to_user(buf, (page + *ppos), len)) {
 787                         kfree(page);
 788                         return -EFAULT;
 789                 }
 790                 *ppos += len;
 791         } else {
 792                 len = 0;
 793         }
 794
 795         return len;
 796 }
 797
 798
 799 static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 800 {
 801 #ifdef LINUX_2_4
 802         struct inode *inode = file->f_dentry->d_inode;
 803         struct proc_dir_entry *dent = inode->u.generic_ip;
 804 #else
 805         struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
 806 #endif
 807         char *page;
 808         int ret = -EINVAL;
 809
 810         if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
 811                 return -ENOBUFS;
 812
 813         if (copy_from_user(page, buf, count)) {
 814                 kfree(page);
 815                 return -EINVAL;
 816         }
 817         page[count] = 0;
 818
 819         if (dent->data != NULL) {
 820                 struct prochandler_t *handler = (struct prochandler_t *) dent->data;
 821                 switch (handler->type) {
 822                         case PROC_LED: {
 823                                 struct led_t *led = (struct led_t *) handler->ptr;
 824                                 int p = (led->polarity == NORMAL ? 0 : 1);
 825
 826                                 if (page[0] == 'f') {
 827                                         led->flash = 1;
 828                                         led_flash(0);
 829                                 } else {
 830                                         led->flash = 0;
 831                                         if (led->gpio & GPIO_TYPE_EXTIF) {
 832                                                 led->state = p ^ ((page[0] == '1') ? 1 : 0);
 833                                                 set_led_extif(led);
 834                                         } else {
 835                                                 gpio_outen(led->gpio, led->gpio);
 836                                                 gpio_control(led->gpio, 0);
 837                                                 gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 838                                         }
 839                                 }
 840                                 break;
 841                         }
 842                         case PROC_GPIOMASK:
 843                                 gpiomask = simple_strtoul(page, NULL, 0);
 844
 845                                 if (platform.buttons) {
 846                                         unregister_buttons(platform.buttons);
 847                                         register_buttons(platform.buttons);
 848                                 }
 849
 850                                 if (platform.leds) {
 851                                         unregister_leds(platform.leds);
 852                                         register_leds(platform.leds);
 853                                 }
 854                                 break;
 855                 }
 856                 ret = count;
 857         }
 858
 859         kfree(page);
 860         return ret;
 861 }
 862
 863 static int __init diag_init(void)
 864 {
 865         static struct proc_dir_entry *p;
 866         static struct platform_t *detected;
 867
 868         detected = platform_detect();
 869         if (!detected) {
 870                 printk(MODULE_NAME ": Router model not detected.\n");
 871                 return -ENODEV;
 872         }
 873         memcpy(&platform, detected, sizeof(struct platform_t));
 874
 875         printk(MODULE_NAME ": Detected '%s'\n", platform.name);
 876
 877         if (!(diag = proc_mkdir("diag", NULL))) {
 878                 printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
 879                 return -EINVAL;
 880         }
 881
 882         if ((p = create_proc_entry("model", S_IRUSR, diag))) {
 883                 p->data = (void *) &proc_model;
 884                 p->proc_fops = &diag_proc_fops;
 885         }
 886
 887         if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
 888                 p->data = (void *) &proc_gpiomask;
 889                 p->proc_fops = &diag_proc_fops;
 890         }
 891
 892         if (platform.buttons)
 893                 register_buttons(platform.buttons);
 894
 895         if (platform.leds)
 896                 register_leds(platform.leds);
 897
 898         return 0;
 899 }
 900
 901 static void __exit diag_exit(void)
 902 {
 903
 904         del_timer(&led_timer);
 905
 906         if (platform.buttons)
 907                 unregister_buttons(platform.buttons);
 908
 909         if (platform.leds)
 910                 unregister_leds(platform.leds);
 911
 912         remove_proc_entry("model", diag);
 913         remove_proc_entry("gpiomask", diag);
 914         remove_proc_entry("diag", NULL);
 915 }
 916
 917 module_init(diag_init);
 918 module_exit(diag_exit);
 919
 920 MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
 921 MODULE_LICENSE("GPL");