package/broadcom-diag/src/diag.c

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