drivers/input/misc/wistron_btns.c

   1 /*
   2  * Wistron laptop button driver
   3  * Copyright (C) 2005 Miloslav Trmac <[email protected]>
   4  * Copyright (C) 2005 Bernhard Rosenkraenzer <[email protected]>
   5  * Copyright (C) 2005 Dmitry Torokhov <[email protected]>
   6  *
   7  * You can redistribute and/or modify this program under the terms of the
   8  * GNU General Public License version 2 as published by the Free Software
   9  * Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  14  * Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20 #include <linux/io.h>
  21 #include <linux/dmi.h>
  22 #include <linux/init.h>
  23 #include <linux/input-polldev.h>
  24 #include <linux/input/sparse-keymap.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/jiffies.h>
  27 #include <linux/kernel.h>
  28 #include <linux/mc146818rtc.h>
  29 #include <linux/module.h>
  30 #include <linux/preempt.h>
  31 #include <linux/string.h>
  32 #include <linux/slab.h>
  33 #include <linux/types.h>
  34 #include <linux/platform_device.h>
  35 #include <linux/leds.h>
  36
  37 /* How often we poll keys - msecs */
  38 #define POLL_INTERVAL_DEFAULT   500 /* when idle */
  39 #define POLL_INTERVAL_BURST     100 /* when a key was recently pressed */
  40
  41 /* BIOS subsystem IDs */
  42 #define WIFI            0x35
  43 #define BLUETOOTH       0x34
  44 #define MAIL_LED        0x31
  45
  46 MODULE_AUTHOR("Miloslav Trmac <[email protected]>");
  47 MODULE_DESCRIPTION("Wistron laptop button driver");
  48 MODULE_LICENSE("GPL v2");
  49
  50 static bool force; /* = 0; */
  51 module_param(force, bool, 0);
  52 MODULE_PARM_DESC(force, "Load even if computer is not in database");
  53
  54 static char *keymap_name; /* = NULL; */
  55 module_param_named(keymap, keymap_name, charp, 0);
  56 MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");
  57
  58 static struct platform_device *wistron_device;
  59
  60  /* BIOS interface implementation */
  61
  62 static void __iomem *bios_entry_point; /* BIOS routine entry point */
  63 static void __iomem *bios_code_map_base;
  64 static void __iomem *bios_data_map_base;
  65
  66 static u8 cmos_address;
  67
  68 struct regs {
  69         u32 eax, ebx, ecx;
  70 };
  71
  72 static void call_bios(struct regs *regs)
  73 {
  74         unsigned long flags;
  75
  76         preempt_disable();
  77         local_irq_save(flags);
  78         asm volatile ("pushl %%ebp;"
  79                       "movl %7, %%ebp;"
  80                       "call *%6;"
  81                       "popl %%ebp"
  82                       : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
  83                       : "0" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
  84                         "m" (bios_entry_point), "m" (bios_data_map_base)
  85                       : "edx", "edi", "esi", "memory");
  86         local_irq_restore(flags);
  87         preempt_enable();
  88 }
  89
  90 static ssize_t __init locate_wistron_bios(void __iomem *base)
  91 {
  92         static unsigned char __initdata signature[] =
  93                 { 0x42, 0x21, 0x55, 0x30 };
  94         ssize_t offset;
  95
  96         for (offset = 0; offset < 0x10000; offset += 0x10) {
  97                 if (check_signature(base + offset, signature,
  98                                     sizeof(signature)) != 0)
  99                         return offset;
 100         }
 101         return -1;
 102 }
 103
 104 static int __init map_bios(void)
 105 {
 106         void __iomem *base;
 107         ssize_t offset;
 108         u32 entry_point;
 109
 110         base = ioremap(0xF0000, 0x10000); /* Can't fail */
 111         offset = locate_wistron_bios(base);
 112         if (offset < 0) {
 113                 printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
 114                 iounmap(base);
 115                 return -ENODEV;
 116         }
 117
 118         entry_point = readl(base + offset + 5);
 119         printk(KERN_DEBUG
 120                 "wistron_btns: BIOS signature found at %p, entry point %08X\n",
 121                 base + offset, entry_point);
 122
 123         if (entry_point >= 0xF0000) {
 124                 bios_code_map_base = base;
 125                 bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
 126         } else {
 127                 iounmap(base);
 128                 bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
 129                 if (bios_code_map_base == NULL) {
 130                         printk(KERN_ERR
 131                                 "wistron_btns: Can't map BIOS code at %08X\n",
 132                                 entry_point & ~0x3FFF);
 133                         goto err;
 134                 }
 135                 bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
 136         }
 137         /* The Windows driver maps 0x10000 bytes, we keep only one page... */
 138         bios_data_map_base = ioremap(0x400, 0xc00);
 139         if (bios_data_map_base == NULL) {
 140                 printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
 141                 goto err_code;
 142         }
 143         return 0;
 144
 145 err_code:
 146         iounmap(bios_code_map_base);
 147 err:
 148         return -ENOMEM;
 149 }
 150
 151 static inline void unmap_bios(void)
 152 {
 153         iounmap(bios_code_map_base);
 154         iounmap(bios_data_map_base);
 155 }
 156
 157  /* BIOS calls */
 158
 159 static u16 bios_pop_queue(void)
 160 {
 161         struct regs regs;
 162
 163         memset(&regs, 0, sizeof (regs));
 164         regs.eax = 0x9610;
 165         regs.ebx = 0x061C;
 166         regs.ecx = 0x0000;
 167         call_bios(&regs);
 168
 169         return regs.eax;
 170 }
 171
 172 static void bios_attach(void)
 173 {
 174         struct regs regs;
 175
 176         memset(&regs, 0, sizeof (regs));
 177         regs.eax = 0x9610;
 178         regs.ebx = 0x012E;
 179         call_bios(&regs);
 180 }
 181
 182 static void bios_detach(void)
 183 {
 184         struct regs regs;
 185
 186         memset(&regs, 0, sizeof (regs));
 187         regs.eax = 0x9610;
 188         regs.ebx = 0x002E;
 189         call_bios(&regs);
 190 }
 191
 192 static u8 bios_get_cmos_address(void)
 193 {
 194         struct regs regs;
 195
 196         memset(&regs, 0, sizeof (regs));
 197         regs.eax = 0x9610;
 198         regs.ebx = 0x051C;
 199         call_bios(&regs);
 200
 201         return regs.ecx;
 202 }
 203
 204 static u16 bios_get_default_setting(u8 subsys)
 205 {
 206         struct regs regs;
 207
 208         memset(&regs, 0, sizeof (regs));
 209         regs.eax = 0x9610;
 210         regs.ebx = 0x0200 | subsys;
 211         call_bios(&regs);
 212
 213         return regs.eax;
 214 }
 215
 216 static void bios_set_state(u8 subsys, int enable)
 217 {
 218         struct regs regs;
 219
 220         memset(&regs, 0, sizeof (regs));
 221         regs.eax = 0x9610;
 222         regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
 223         call_bios(&regs);
 224 }
 225
 226 /* Hardware database */
 227
 228 #define KE_WIFI         (KE_LAST + 1)
 229 #define KE_BLUETOOTH    (KE_LAST + 2)
 230
 231 #define FE_MAIL_LED 0x01
 232 #define FE_WIFI_LED 0x02
 233 #define FE_UNTESTED 0x80
 234
 235 static struct key_entry *keymap; /* = NULL; Current key map */
 236 static bool have_wifi;
 237 static bool have_bluetooth;
 238 static int leds_present;        /* bitmask of leds present */
 239
 240 static int __init dmi_matched(const struct dmi_system_id *dmi)
 241 {
 242         const struct key_entry *key;
 243
 244         keymap = dmi->driver_data;
 245         for (key = keymap; key->type != KE_END; key++) {
 246                 if (key->type == KE_WIFI)
 247                         have_wifi = true;
 248                 else if (key->type == KE_BLUETOOTH)
 249                         have_bluetooth = true;
 250         }
 251         leds_present = key->code & (FE_MAIL_LED | FE_WIFI_LED);
 252
 253         return 1;
 254 }
 255
 256 static struct key_entry keymap_empty[] __initdata = {
 257         { KE_END, 0 }
 258 };
 259
 260 static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
 261         { KE_KEY,  0x01, {KEY_HELP} },
 262         { KE_KEY,  0x11, {KEY_PROG1} },
 263         { KE_KEY,  0x12, {KEY_PROG2} },
 264         { KE_WIFI, 0x30 },
 265         { KE_KEY,  0x31, {KEY_MAIL} },
 266         { KE_KEY,  0x36, {KEY_WWW} },
 267         { KE_END,  0 }
 268 };
 269
 270 static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
 271         { KE_KEY,       0x01, {KEY_HELP} },          /* Fn+F1 */
 272         { KE_KEY,       0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
 273         { KE_BLUETOOTH, 0x30 },                      /* Fn+F10 */
 274         { KE_KEY,       0x31, {KEY_MAIL} },          /* mail button */
 275         { KE_KEY,       0x36, {KEY_WWW} },           /* www button */
 276         { KE_WIFI,      0x78 },                      /* satellite dish button */
 277         { KE_END,       0 }
 278 };
 279
 280 static struct key_entry keymap_fs_amilo_pro_v8210[] __initdata = {
 281         { KE_KEY,       0x01, {KEY_HELP} },          /* Fn+F1 */
 282         { KE_KEY,       0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
 283         { KE_BLUETOOTH, 0x30 },                      /* Fn+F10 */
 284         { KE_KEY,       0x31, {KEY_MAIL} },          /* mail button */
 285         { KE_KEY,       0x36, {KEY_WWW} },           /* www button */
 286         { KE_WIFI,      0x78 },                      /* satelite dish button */
 287         { KE_END,       FE_WIFI_LED }
 288 };
 289
 290 static struct key_entry keymap_fujitsu_n3510[] __initdata = {
 291         { KE_KEY, 0x11, {KEY_PROG1} },
 292         { KE_KEY, 0x12, {KEY_PROG2} },
 293         { KE_KEY, 0x36, {KEY_WWW} },
 294         { KE_KEY, 0x31, {KEY_MAIL} },
 295         { KE_KEY, 0x71, {KEY_STOPCD} },
 296         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
 297         { KE_KEY, 0x74, {KEY_REWIND} },
 298         { KE_KEY, 0x78, {KEY_FORWARD} },
 299         { KE_END, 0 }
 300 };
 301
 302 static struct key_entry keymap_wistron_ms2111[] __initdata = {
 303         { KE_KEY,  0x11, {KEY_PROG1} },
 304         { KE_KEY,  0x12, {KEY_PROG2} },
 305         { KE_KEY,  0x13, {KEY_PROG3} },
 306         { KE_KEY,  0x31, {KEY_MAIL} },
 307         { KE_KEY,  0x36, {KEY_WWW} },
 308         { KE_END, FE_MAIL_LED }
 309 };
 310
 311 static struct key_entry keymap_wistron_md40100[] __initdata = {
 312         { KE_KEY, 0x01, {KEY_HELP} },
 313         { KE_KEY, 0x02, {KEY_CONFIG} },
 314         { KE_KEY, 0x31, {KEY_MAIL} },
 315         { KE_KEY, 0x36, {KEY_WWW} },
 316         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 317         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 318 };
 319
 320 static struct key_entry keymap_wistron_ms2141[] __initdata = {
 321         { KE_KEY,  0x11, {KEY_PROG1} },
 322         { KE_KEY,  0x12, {KEY_PROG2} },
 323         { KE_WIFI, 0x30 },
 324         { KE_KEY,  0x22, {KEY_REWIND} },
 325         { KE_KEY,  0x23, {KEY_FORWARD} },
 326         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
 327         { KE_KEY,  0x25, {KEY_STOPCD} },
 328         { KE_KEY,  0x31, {KEY_MAIL} },
 329         { KE_KEY,  0x36, {KEY_WWW} },
 330         { KE_END,  0 }
 331 };
 332
 333 static struct key_entry keymap_acer_aspire_1500[] __initdata = {
 334         { KE_KEY, 0x01, {KEY_HELP} },
 335         { KE_KEY, 0x03, {KEY_POWER} },
 336         { KE_KEY, 0x11, {KEY_PROG1} },
 337         { KE_KEY, 0x12, {KEY_PROG2} },
 338         { KE_WIFI, 0x30 },
 339         { KE_KEY, 0x31, {KEY_MAIL} },
 340         { KE_KEY, 0x36, {KEY_WWW} },
 341         { KE_KEY, 0x49, {KEY_CONFIG} },
 342         { KE_BLUETOOTH, 0x44 },
 343         { KE_END, FE_UNTESTED }
 344 };
 345
 346 static struct key_entry keymap_acer_aspire_1600[] __initdata = {
 347         { KE_KEY, 0x01, {KEY_HELP} },
 348         { KE_KEY, 0x03, {KEY_POWER} },
 349         { KE_KEY, 0x08, {KEY_MUTE} },
 350         { KE_KEY, 0x11, {KEY_PROG1} },
 351         { KE_KEY, 0x12, {KEY_PROG2} },
 352         { KE_KEY, 0x13, {KEY_PROG3} },
 353         { KE_KEY, 0x31, {KEY_MAIL} },
 354         { KE_KEY, 0x36, {KEY_WWW} },
 355         { KE_KEY, 0x49, {KEY_CONFIG} },
 356         { KE_WIFI, 0x30 },
 357         { KE_BLUETOOTH, 0x44 },
 358         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 359 };
 360
 361 /* 3020 has been tested */
 362 static struct key_entry keymap_acer_aspire_5020[] __initdata = {
 363         { KE_KEY, 0x01, {KEY_HELP} },
 364         { KE_KEY, 0x03, {KEY_POWER} },
 365         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 366         { KE_KEY, 0x11, {KEY_PROG1} },
 367         { KE_KEY, 0x12, {KEY_PROG2} },
 368         { KE_KEY, 0x31, {KEY_MAIL} },
 369         { KE_KEY, 0x36, {KEY_WWW} },
 370         { KE_KEY, 0x6a, {KEY_CONFIG} },
 371         { KE_WIFI, 0x30 },
 372         { KE_BLUETOOTH, 0x44 },
 373         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 374 };
 375
 376 static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
 377         { KE_KEY, 0x01, {KEY_HELP} },
 378         { KE_KEY, 0x6d, {KEY_POWER} },
 379         { KE_KEY, 0x11, {KEY_PROG1} },
 380         { KE_KEY, 0x12, {KEY_PROG2} },
 381         { KE_KEY, 0x31, {KEY_MAIL} },
 382         { KE_KEY, 0x36, {KEY_WWW} },
 383         { KE_KEY, 0x6a, {KEY_CONFIG} },
 384         { KE_WIFI, 0x30 },
 385         { KE_BLUETOOTH, 0x44 },
 386         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 387 };
 388
 389 static struct key_entry keymap_acer_travelmate_110[] __initdata = {
 390         { KE_KEY, 0x01, {KEY_HELP} },
 391         { KE_KEY, 0x02, {KEY_CONFIG} },
 392         { KE_KEY, 0x03, {KEY_POWER} },
 393         { KE_KEY, 0x08, {KEY_MUTE} },
 394         { KE_KEY, 0x11, {KEY_PROG1} },
 395         { KE_KEY, 0x12, {KEY_PROG2} },
 396         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 397         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 398         { KE_KEY, 0x31, {KEY_MAIL} },
 399         { KE_KEY, 0x36, {KEY_WWW} },
 400         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
 401         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
 402         { KE_WIFI, 0x30 },
 403         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 404 };
 405
 406 static struct key_entry keymap_acer_travelmate_300[] __initdata = {
 407         { KE_KEY, 0x01, {KEY_HELP} },
 408         { KE_KEY, 0x02, {KEY_CONFIG} },
 409         { KE_KEY, 0x03, {KEY_POWER} },
 410         { KE_KEY, 0x08, {KEY_MUTE} },
 411         { KE_KEY, 0x11, {KEY_PROG1} },
 412         { KE_KEY, 0x12, {KEY_PROG2} },
 413         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 414         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 415         { KE_KEY, 0x31, {KEY_MAIL} },
 416         { KE_KEY, 0x36, {KEY_WWW} },
 417         { KE_WIFI, 0x30 },
 418         { KE_BLUETOOTH, 0x44 },
 419         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 420 };
 421
 422 static struct key_entry keymap_acer_travelmate_380[] __initdata = {
 423         { KE_KEY, 0x01, {KEY_HELP} },
 424         { KE_KEY, 0x02, {KEY_CONFIG} },
 425         { KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
 426         { KE_KEY, 0x11, {KEY_PROG1} },
 427         { KE_KEY, 0x12, {KEY_PROG2} },
 428         { KE_KEY, 0x13, {KEY_PROG3} },
 429         { KE_KEY, 0x31, {KEY_MAIL} },
 430         { KE_KEY, 0x36, {KEY_WWW} },
 431         { KE_WIFI, 0x30 },
 432         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 433 };
 434
 435 /* unusual map */
 436 static struct key_entry keymap_acer_travelmate_220[] __initdata = {
 437         { KE_KEY, 0x01, {KEY_HELP} },
 438         { KE_KEY, 0x02, {KEY_CONFIG} },
 439         { KE_KEY, 0x11, {KEY_MAIL} },
 440         { KE_KEY, 0x12, {KEY_WWW} },
 441         { KE_KEY, 0x13, {KEY_PROG2} },
 442         { KE_KEY, 0x31, {KEY_PROG1} },
 443         { KE_END, FE_WIFI_LED | FE_UNTESTED }
 444 };
 445
 446 static struct key_entry keymap_acer_travelmate_230[] __initdata = {
 447         { KE_KEY, 0x01, {KEY_HELP} },
 448         { KE_KEY, 0x02, {KEY_CONFIG} },
 449         { KE_KEY, 0x11, {KEY_PROG1} },
 450         { KE_KEY, 0x12, {KEY_PROG2} },
 451         { KE_KEY, 0x31, {KEY_MAIL} },
 452         { KE_KEY, 0x36, {KEY_WWW} },
 453         { KE_END, FE_WIFI_LED | FE_UNTESTED }
 454 };
 455
 456 static struct key_entry keymap_acer_travelmate_240[] __initdata = {
 457         { KE_KEY, 0x01, {KEY_HELP} },
 458         { KE_KEY, 0x02, {KEY_CONFIG} },
 459         { KE_KEY, 0x03, {KEY_POWER} },
 460         { KE_KEY, 0x08, {KEY_MUTE} },
 461         { KE_KEY, 0x31, {KEY_MAIL} },
 462         { KE_KEY, 0x36, {KEY_WWW} },
 463         { KE_KEY, 0x11, {KEY_PROG1} },
 464         { KE_KEY, 0x12, {KEY_PROG2} },
 465         { KE_BLUETOOTH, 0x44 },
 466         { KE_WIFI, 0x30 },
 467         { KE_END, FE_UNTESTED }
 468 };
 469
 470 static struct key_entry keymap_acer_travelmate_350[] __initdata = {
 471         { KE_KEY, 0x01, {KEY_HELP} },
 472         { KE_KEY, 0x02, {KEY_CONFIG} },
 473         { KE_KEY, 0x11, {KEY_PROG1} },
 474         { KE_KEY, 0x12, {KEY_PROG2} },
 475         { KE_KEY, 0x13, {KEY_MAIL} },
 476         { KE_KEY, 0x14, {KEY_PROG3} },
 477         { KE_KEY, 0x15, {KEY_WWW} },
 478         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 479 };
 480
 481 static struct key_entry keymap_acer_travelmate_360[] __initdata = {
 482         { KE_KEY, 0x01, {KEY_HELP} },
 483         { KE_KEY, 0x02, {KEY_CONFIG} },
 484         { KE_KEY, 0x11, {KEY_PROG1} },
 485         { KE_KEY, 0x12, {KEY_PROG2} },
 486         { KE_KEY, 0x13, {KEY_MAIL} },
 487         { KE_KEY, 0x14, {KEY_PROG3} },
 488         { KE_KEY, 0x15, {KEY_WWW} },
 489         { KE_KEY, 0x40, {KEY_WLAN} },
 490         { KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
 491 };
 492
 493 /* Wifi subsystem only activates the led. Therefore we need to pass
 494  * wifi event as a normal key, then userspace can really change the wifi state.
 495  * TODO we need to export led state to userspace (wifi and mail) */
 496 static struct key_entry keymap_acer_travelmate_610[] __initdata = {
 497         { KE_KEY, 0x01, {KEY_HELP} },
 498         { KE_KEY, 0x02, {KEY_CONFIG} },
 499         { KE_KEY, 0x11, {KEY_PROG1} },
 500         { KE_KEY, 0x12, {KEY_PROG2} },
 501         { KE_KEY, 0x13, {KEY_PROG3} },
 502         { KE_KEY, 0x14, {KEY_MAIL} },
 503         { KE_KEY, 0x15, {KEY_WWW} },
 504         { KE_KEY, 0x40, {KEY_WLAN} },
 505         { KE_END, FE_MAIL_LED | FE_WIFI_LED }
 506 };
 507
 508 static struct key_entry keymap_acer_travelmate_630[] __initdata = {
 509         { KE_KEY, 0x01, {KEY_HELP} },
 510         { KE_KEY, 0x02, {KEY_CONFIG} },
 511         { KE_KEY, 0x03, {KEY_POWER} },
 512         { KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
 513         { KE_KEY, 0x11, {KEY_PROG1} },
 514         { KE_KEY, 0x12, {KEY_PROG2} },
 515         { KE_KEY, 0x13, {KEY_PROG3} },
 516         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 517         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 518         { KE_KEY, 0x31, {KEY_MAIL} },
 519         { KE_KEY, 0x36, {KEY_WWW} },
 520         { KE_WIFI, 0x30 },
 521         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 522 };
 523
 524 static struct key_entry keymap_aopen_1559as[] __initdata = {
 525         { KE_KEY,  0x01, {KEY_HELP} },
 526         { KE_KEY,  0x06, {KEY_PROG3} },
 527         { KE_KEY,  0x11, {KEY_PROG1} },
 528         { KE_KEY,  0x12, {KEY_PROG2} },
 529         { KE_WIFI, 0x30 },
 530         { KE_KEY,  0x31, {KEY_MAIL} },
 531         { KE_KEY,  0x36, {KEY_WWW} },
 532         { KE_END,  0 },
 533 };
 534
 535 static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
 536         { KE_KEY, 0x01, {KEY_HELP} },
 537         { KE_KEY, 0x08, {KEY_MUTE} },
 538         { KE_KEY, 0x31, {KEY_MAIL} },
 539         { KE_KEY, 0x36, {KEY_WWW} },
 540         { KE_KEY, 0x11, {KEY_PROG1} },
 541         { KE_KEY, 0x12, {KEY_PROG2} },
 542         { KE_KEY, 0x13, {KEY_PROG3} },
 543         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 544 };
 545
 546 static struct key_entry keymap_wistron_md2900[] __initdata = {
 547         { KE_KEY, 0x01, {KEY_HELP} },
 548         { KE_KEY, 0x02, {KEY_CONFIG} },
 549         { KE_KEY, 0x11, {KEY_PROG1} },
 550         { KE_KEY, 0x12, {KEY_PROG2} },
 551         { KE_KEY, 0x31, {KEY_MAIL} },
 552         { KE_KEY, 0x36, {KEY_WWW} },
 553         { KE_WIFI, 0x30 },
 554         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 555 };
 556
 557 static struct key_entry keymap_wistron_md96500[] __initdata = {
 558         { KE_KEY, 0x01, {KEY_HELP} },
 559         { KE_KEY, 0x02, {KEY_CONFIG} },
 560         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 561         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 562         { KE_KEY, 0x08, {KEY_MUTE} },
 563         { KE_KEY, 0x11, {KEY_PROG1} },
 564         { KE_KEY, 0x12, {KEY_PROG2} },
 565         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 566         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 567         { KE_KEY, 0x22, {KEY_REWIND} },
 568         { KE_KEY, 0x23, {KEY_FORWARD} },
 569         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
 570         { KE_KEY, 0x25, {KEY_STOPCD} },
 571         { KE_KEY, 0x31, {KEY_MAIL} },
 572         { KE_KEY, 0x36, {KEY_WWW} },
 573         { KE_WIFI, 0x30 },
 574         { KE_BLUETOOTH, 0x44 },
 575         { KE_END, 0 }
 576 };
 577
 578 static struct key_entry keymap_wistron_generic[] __initdata = {
 579         { KE_KEY, 0x01, {KEY_HELP} },
 580         { KE_KEY, 0x02, {KEY_CONFIG} },
 581         { KE_KEY, 0x03, {KEY_POWER} },
 582         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 583         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 584         { KE_KEY, 0x08, {KEY_MUTE} },
 585         { KE_KEY, 0x11, {KEY_PROG1} },
 586         { KE_KEY, 0x12, {KEY_PROG2} },
 587         { KE_KEY, 0x13, {KEY_PROG3} },
 588         { KE_KEY, 0x14, {KEY_MAIL} },
 589         { KE_KEY, 0x15, {KEY_WWW} },
 590         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 591         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 592         { KE_KEY, 0x22, {KEY_REWIND} },
 593         { KE_KEY, 0x23, {KEY_FORWARD} },
 594         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
 595         { KE_KEY, 0x25, {KEY_STOPCD} },
 596         { KE_KEY, 0x31, {KEY_MAIL} },
 597         { KE_KEY, 0x36, {KEY_WWW} },
 598         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 599         { KE_KEY, 0x40, {KEY_WLAN} },
 600         { KE_KEY, 0x49, {KEY_CONFIG} },
 601         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
 602         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
 603         { KE_KEY, 0x6a, {KEY_CONFIG} },
 604         { KE_KEY, 0x6d, {KEY_POWER} },
 605         { KE_KEY, 0x71, {KEY_STOPCD} },
 606         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
 607         { KE_KEY, 0x74, {KEY_REWIND} },
 608         { KE_KEY, 0x78, {KEY_FORWARD} },
 609         { KE_WIFI, 0x30 },
 610         { KE_BLUETOOTH, 0x44 },
 611         { KE_END, 0 }
 612 };
 613
 614 static struct key_entry keymap_aopen_1557[] __initdata = {
 615         { KE_KEY,  0x01, {KEY_HELP} },
 616         { KE_KEY,  0x11, {KEY_PROG1} },
 617         { KE_KEY,  0x12, {KEY_PROG2} },
 618         { KE_WIFI, 0x30 },
 619         { KE_KEY,  0x22, {KEY_REWIND} },
 620         { KE_KEY,  0x23, {KEY_FORWARD} },
 621         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
 622         { KE_KEY,  0x25, {KEY_STOPCD} },
 623         { KE_KEY,  0x31, {KEY_MAIL} },
 624         { KE_KEY,  0x36, {KEY_WWW} },
 625         { KE_END,  0 }
 626 };
 627
 628 static struct key_entry keymap_prestigio[] __initdata = {
 629         { KE_KEY,  0x11, {KEY_PROG1} },
 630         { KE_KEY,  0x12, {KEY_PROG2} },
 631         { KE_WIFI, 0x30 },
 632         { KE_KEY,  0x22, {KEY_REWIND} },
 633         { KE_KEY,  0x23, {KEY_FORWARD} },
 634         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
 635         { KE_KEY,  0x25, {KEY_STOPCD} },
 636         { KE_KEY,  0x31, {KEY_MAIL} },
 637         { KE_KEY,  0x36, {KEY_WWW} },
 638         { KE_END,  0 }
 639 };
 640
 641
 642 /*
 643  * If your machine is not here (which is currently rather likely), please send
 644  * a list of buttons and their key codes (reported when loading this module
 645  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
 646  */
 647 static const struct dmi_system_id dmi_ids[] __initconst = {
 648         {
 649                 /* Fujitsu-Siemens Amilo Pro V2000 */
 650                 .callback = dmi_matched,
 651                 .matches = {
 652                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 653                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
 654                 },
 655                 .driver_data = keymap_fs_amilo_pro_v2000
 656         },
 657         {
 658                 /* Fujitsu-Siemens Amilo Pro Edition V3505 */
 659                 .callback = dmi_matched,
 660                 .matches = {
 661                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 662                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
 663                 },
 664                 .driver_data = keymap_fs_amilo_pro_v3505
 665         },
 666         {
 667                 /* Fujitsu-Siemens Amilo Pro Edition V8210 */
 668                 .callback = dmi_matched,
 669                 .matches = {
 670                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 671                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Series V8210"),
 672                 },
 673                 .driver_data = keymap_fs_amilo_pro_v8210
 674         },
 675         {
 676                 /* Fujitsu-Siemens Amilo M7400 */
 677                 .callback = dmi_matched,
 678                 .matches = {
 679                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 680                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M        "),
 681                 },
 682                 .driver_data = keymap_fs_amilo_pro_v2000
 683         },
 684         {
 685                 /* Maxdata Pro 7000 DX */
 686                 .callback = dmi_matched,
 687                 .matches = {
 688                         DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
 689                         DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
 690                 },
 691                 .driver_data = keymap_fs_amilo_pro_v2000
 692         },
 693         {
 694                 /* Fujitsu N3510 */
 695                 .callback = dmi_matched,
 696                 .matches = {
 697                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 698                         DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
 699                 },
 700                 .driver_data = keymap_fujitsu_n3510
 701         },
 702         {
 703                 /* Acer Aspire 1500 */
 704                 .callback = dmi_matched,
 705                 .matches = {
 706                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 707                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
 708                 },
 709                 .driver_data = keymap_acer_aspire_1500
 710         },
 711         {
 712                 /* Acer Aspire 1600 */
 713                 .callback = dmi_matched,
 714                 .matches = {
 715                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 716                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
 717                 },
 718                 .driver_data = keymap_acer_aspire_1600
 719         },
 720         {
 721                 /* Acer Aspire 3020 */
 722                 .callback = dmi_matched,
 723                 .matches = {
 724                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 725                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
 726                 },
 727                 .driver_data = keymap_acer_aspire_5020
 728         },
 729         {
 730                 /* Acer Aspire 5020 */
 731                 .callback = dmi_matched,
 732                 .matches = {
 733                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 734                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
 735                 },
 736                 .driver_data = keymap_acer_aspire_5020
 737         },
 738         {
 739                 /* Acer TravelMate 2100 */
 740                 .callback = dmi_matched,
 741                 .matches = {
 742                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 743                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
 744                 },
 745                 .driver_data = keymap_acer_aspire_5020
 746         },
 747         {
 748                 /* Acer TravelMate 2410 */
 749                 .callback = dmi_matched,
 750                 .matches = {
 751                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 752                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
 753                 },
 754                 .driver_data = keymap_acer_travelmate_2410
 755         },
 756         {
 757                 /* Acer TravelMate C300 */
 758                 .callback = dmi_matched,
 759                 .matches = {
 760                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 761                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
 762                 },
 763                 .driver_data = keymap_acer_travelmate_300
 764         },
 765         {
 766                 /* Acer TravelMate C100 */
 767                 .callback = dmi_matched,
 768                 .matches = {
 769                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 770                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
 771                 },
 772                 .driver_data = keymap_acer_travelmate_300
 773         },
 774         {
 775                 /* Acer TravelMate C110 */
 776                 .callback = dmi_matched,
 777                 .matches = {
 778                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 779                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
 780                 },
 781                 .driver_data = keymap_acer_travelmate_110
 782         },
 783         {
 784                 /* Acer TravelMate 380 */
 785                 .callback = dmi_matched,
 786                 .matches = {
 787                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 788                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
 789                 },
 790                 .driver_data = keymap_acer_travelmate_380
 791         },
 792         {
 793                 /* Acer TravelMate 370 */
 794                 .callback = dmi_matched,
 795                 .matches = {
 796                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 797                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
 798                 },
 799                 .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
 800         },
 801         {
 802                 /* Acer TravelMate 220 */
 803                 .callback = dmi_matched,
 804                 .matches = {
 805                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 806                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
 807                 },
 808                 .driver_data = keymap_acer_travelmate_220
 809         },
 810         {
 811                 /* Acer TravelMate 260 */
 812                 .callback = dmi_matched,
 813                 .matches = {
 814                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 815                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
 816                 },
 817                 .driver_data = keymap_acer_travelmate_220
 818         },
 819         {
 820                 /* Acer TravelMate 230 */
 821                 .callback = dmi_matched,
 822                 .matches = {
 823                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 824                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
 825                         /* acerhk looks for "TravelMate F4..." ?! */
 826                 },
 827                 .driver_data = keymap_acer_travelmate_230
 828         },
 829         {
 830                 /* Acer TravelMate 280 */
 831                 .callback = dmi_matched,
 832                 .matches = {
 833                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 834                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
 835                 },
 836                 .driver_data = keymap_acer_travelmate_230
 837         },
 838         {
 839                 /* Acer TravelMate 240 */
 840                 .callback = dmi_matched,
 841                 .matches = {
 842                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 843                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
 844                 },
 845                 .driver_data = keymap_acer_travelmate_240
 846         },
 847         {
 848                 /* Acer TravelMate 250 */
 849                 .callback = dmi_matched,
 850                 .matches = {
 851                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 852                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
 853                 },
 854                 .driver_data = keymap_acer_travelmate_240
 855         },
 856         {
 857                 /* Acer TravelMate 2424NWXCi */
 858                 .callback = dmi_matched,
 859                 .matches = {
 860                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 861                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
 862                 },
 863                 .driver_data = keymap_acer_travelmate_240
 864         },
 865         {
 866                 /* Acer TravelMate 350 */
 867                 .callback = dmi_matched,
 868                 .matches = {
 869                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 870                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
 871                 },
 872                 .driver_data = keymap_acer_travelmate_350
 873         },
 874         {
 875                 /* Acer TravelMate 360 */
 876                 .callback = dmi_matched,
 877                 .matches = {
 878                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 879                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
 880                 },
 881                 .driver_data = keymap_acer_travelmate_360
 882         },
 883         {
 884                 /* Acer TravelMate 610 */
 885                 .callback = dmi_matched,
 886                 .matches = {
 887                         DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
 888                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
 889                 },
 890                 .driver_data = keymap_acer_travelmate_610
 891         },
 892         {
 893                 /* Acer TravelMate 620 */
 894                 .callback = dmi_matched,
 895                 .matches = {
 896                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 897                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
 898                 },
 899                 .driver_data = keymap_acer_travelmate_630
 900         },
 901         {
 902                 /* Acer TravelMate 630 */
 903                 .callback = dmi_matched,
 904                 .matches = {
 905                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 906                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
 907                 },
 908                 .driver_data = keymap_acer_travelmate_630
 909         },
 910         {
 911                 /* AOpen 1559AS */
 912                 .callback = dmi_matched,
 913                 .matches = {
 914                         DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
 915                         DMI_MATCH(DMI_BOARD_NAME, "E2U"),
 916                 },
 917                 .driver_data = keymap_aopen_1559as
 918         },
 919         {
 920                 /* Medion MD 9783 */
 921                 .callback = dmi_matched,
 922                 .matches = {
 923                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 924                         DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
 925                 },
 926                 .driver_data = keymap_wistron_ms2111
 927         },
 928         {
 929                 /* Medion MD 40100 */
 930                 .callback = dmi_matched,
 931                 .matches = {
 932                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 933                         DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
 934                 },
 935                 .driver_data = keymap_wistron_md40100
 936         },
 937         {
 938                 /* Medion MD 2900 */
 939                 .callback = dmi_matched,
 940                 .matches = {
 941                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 942                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
 943                 },
 944                 .driver_data = keymap_wistron_md2900
 945         },
 946         {
 947                 /* Medion MD 42200 */
 948                 .callback = dmi_matched,
 949                 .matches = {
 950                         DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
 951                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2030"),
 952                 },
 953                 .driver_data = keymap_fs_amilo_pro_v2000
 954         },
 955         {
 956                 /* Medion MD 96500 */
 957                 .callback = dmi_matched,
 958                 .matches = {
 959                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 960                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
 961                 },
 962                 .driver_data = keymap_wistron_md96500
 963         },
 964         {
 965                 /* Medion MD 95400 */
 966                 .callback = dmi_matched,
 967                 .matches = {
 968                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 969                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
 970                 },
 971                 .driver_data = keymap_wistron_md96500
 972         },
 973         {
 974                 /* Fujitsu Siemens Amilo D7820 */
 975                 .callback = dmi_matched,
 976                 .matches = {
 977                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
 978                         DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
 979                 },
 980                 .driver_data = keymap_fs_amilo_d88x0
 981         },
 982         {
 983                 /* Fujitsu Siemens Amilo D88x0 */
 984                 .callback = dmi_matched,
 985                 .matches = {
 986                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 987                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
 988                 },
 989                 .driver_data = keymap_fs_amilo_d88x0
 990         },
 991         { NULL, }
 992 };
 993 MODULE_DEVICE_TABLE(dmi, dmi_ids);
 994
 995 /* Copy the good keymap, as the original ones are free'd */
 996 static int __init copy_keymap(void)
 997 {
 998         const struct key_entry *key;
 999         struct key_entry *new_keymap;
1000         unsigned int length = 1;
1001
1002         for (key = keymap; key->type != KE_END; key++)
1003                 length++;
1004
1005         new_keymap = kmemdup(keymap, length * sizeof(struct key_entry),
1006                              GFP_KERNEL);
1007         if (!new_keymap)
1008                 return -ENOMEM;
1009
1010         keymap = new_keymap;
1011
1012         return 0;
1013 }
1014
1015 static int __init select_keymap(void)
1016 {
1017         dmi_check_system(dmi_ids);
1018         if (keymap_name != NULL) {
1019                 if (strcmp (keymap_name, "1557/MS2141") == 0)
1020                         keymap = keymap_wistron_ms2141;
1021                 else if (strcmp (keymap_name, "aopen1557") == 0)
1022                         keymap = keymap_aopen_1557;
1023                 else if (strcmp (keymap_name, "prestigio") == 0)
1024                         keymap = keymap_prestigio;
1025                 else if (strcmp (keymap_name, "generic") == 0)
1026                         keymap = keymap_wistron_generic;
1027                 else {
1028                         printk(KERN_ERR "wistron_btns: Keymap unknown\n");
1029                         return -EINVAL;
1030                 }
1031         }
1032         if (keymap == NULL) {
1033                 if (!force) {
1034                         printk(KERN_ERR "wistron_btns: System unknown\n");
1035                         return -ENODEV;
1036                 }
1037                 keymap = keymap_empty;
1038         }
1039
1040         return copy_keymap();
1041 }
1042
1043  /* Input layer interface */
1044
1045 static struct input_polled_dev *wistron_idev;
1046 static unsigned long jiffies_last_press;
1047 static bool wifi_enabled;
1048 static bool bluetooth_enabled;
1049
1050  /* led management */
1051 static void wistron_mail_led_set(struct led_classdev *led_cdev,
1052                                 enum led_brightness value)
1053 {
1054         bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
1055 }
1056
1057 /* same as setting up wifi card, but for laptops on which the led is managed */
1058 static void wistron_wifi_led_set(struct led_classdev *led_cdev,
1059                                 enum led_brightness value)
1060 {
1061         bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
1062 }
1063
1064 static struct led_classdev wistron_mail_led = {
1065         .name                   = "wistron:green:mail",
1066         .brightness_set         = wistron_mail_led_set,
1067 };
1068
1069 static struct led_classdev wistron_wifi_led = {
1070         .name                   = "wistron:red:wifi",
1071         .brightness_set         = wistron_wifi_led_set,
1072 };
1073
1074 static void wistron_led_init(struct device *parent)
1075 {
1076         if (leds_present & FE_WIFI_LED) {
1077                 u16 wifi = bios_get_default_setting(WIFI);
1078                 if (wifi & 1) {
1079                         wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
1080                         if (led_classdev_register(parent, &wistron_wifi_led))
1081                                 leds_present &= ~FE_WIFI_LED;
1082                         else
1083                                 bios_set_state(WIFI, wistron_wifi_led.brightness);
1084
1085                 } else
1086                         leds_present &= ~FE_WIFI_LED;
1087         }
1088
1089         if (leds_present & FE_MAIL_LED) {
1090                 /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
1091                 wistron_mail_led.brightness = LED_OFF;
1092                 if (led_classdev_register(parent, &wistron_mail_led))
1093                         leds_present &= ~FE_MAIL_LED;
1094                 else
1095                         bios_set_state(MAIL_LED, wistron_mail_led.brightness);
1096         }
1097 }
1098
1099 static void wistron_led_remove(void)
1100 {
1101         if (leds_present & FE_MAIL_LED)
1102                 led_classdev_unregister(&wistron_mail_led);
1103
1104         if (leds_present & FE_WIFI_LED)
1105                 led_classdev_unregister(&wistron_wifi_led);
1106 }
1107
1108 static inline void wistron_led_suspend(void)
1109 {
1110         if (leds_present & FE_MAIL_LED)
1111                 led_classdev_suspend(&wistron_mail_led);
1112
1113         if (leds_present & FE_WIFI_LED)
1114                 led_classdev_suspend(&wistron_wifi_led);
1115 }
1116
1117 static inline void wistron_led_resume(void)
1118 {
1119         if (leds_present & FE_MAIL_LED)
1120                 led_classdev_resume(&wistron_mail_led);
1121
1122         if (leds_present & FE_WIFI_LED)
1123                 led_classdev_resume(&wistron_wifi_led);
1124 }
1125
1126 static void handle_key(u8 code)
1127 {
1128         const struct key_entry *key =
1129                 sparse_keymap_entry_from_scancode(wistron_idev->input, code);
1130
1131         if (key) {
1132                 switch (key->type) {
1133                 case KE_WIFI:
1134                         if (have_wifi) {
1135                                 wifi_enabled = !wifi_enabled;
1136                                 bios_set_state(WIFI, wifi_enabled);
1137                         }
1138                         break;
1139
1140                 case KE_BLUETOOTH:
1141                         if (have_bluetooth) {
1142                                 bluetooth_enabled = !bluetooth_enabled;
1143                                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1144                         }
1145                         break;
1146
1147                 default:
1148                         sparse_keymap_report_entry(wistron_idev->input,
1149                                                    key, 1, true);
1150                         break;
1151                 }
1152                 jiffies_last_press = jiffies;
1153         } else
1154                 printk(KERN_NOTICE
1155                         "wistron_btns: Unknown key code %02X\n", code);
1156 }
1157
1158 static void poll_bios(bool discard)
1159 {
1160         u8 qlen;
1161         u16 val;
1162
1163         for (;;) {
1164                 qlen = CMOS_READ(cmos_address);
1165                 if (qlen == 0)
1166                         break;
1167                 val = bios_pop_queue();
1168                 if (val != 0 && !discard)
1169                         handle_key((u8)val);
1170         }
1171 }
1172
1173 static void wistron_flush(struct input_polled_dev *dev)
1174 {
1175         /* Flush stale event queue */
1176         poll_bios(true);
1177 }
1178
1179 static void wistron_poll(struct input_polled_dev *dev)
1180 {
1181         poll_bios(false);
1182
1183         /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
1184         if (time_before(jiffies, jiffies_last_press + 2 * HZ))
1185                 dev->poll_interval = POLL_INTERVAL_BURST;
1186         else
1187                 dev->poll_interval = POLL_INTERVAL_DEFAULT;
1188 }
1189
1190 static int wistron_setup_keymap(struct input_dev *dev,
1191                                           struct key_entry *entry)
1192 {
1193         switch (entry->type) {
1194
1195         /* if wifi or bluetooth are not available, create normal keys */
1196         case KE_WIFI:
1197                 if (!have_wifi) {
1198                         entry->type = KE_KEY;
1199                         entry->keycode = KEY_WLAN;
1200                 }
1201                 break;
1202
1203         case KE_BLUETOOTH:
1204                 if (!have_bluetooth) {
1205                         entry->type = KE_KEY;
1206                         entry->keycode = KEY_BLUETOOTH;
1207                 }
1208                 break;
1209
1210         case KE_END:
1211                 if (entry->code & FE_UNTESTED)
1212                         printk(KERN_WARNING "Untested laptop multimedia keys, "
1213                                 "please report success or failure to "
1214                                 "[email protected]\n");
1215                 break;
1216         }
1217
1218         return 0;
1219 }
1220
1221 static int setup_input_dev(void)
1222 {
1223         struct input_dev *input_dev;
1224         int error;
1225
1226         wistron_idev = input_allocate_polled_device();
1227         if (!wistron_idev)
1228                 return -ENOMEM;
1229
1230         wistron_idev->open = wistron_flush;
1231         wistron_idev->poll = wistron_poll;
1232         wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
1233
1234         input_dev = wistron_idev->input;
1235         input_dev->name = "Wistron laptop buttons";
1236         input_dev->phys = "wistron/input0";
1237         input_dev->id.bustype = BUS_HOST;
1238         input_dev->dev.parent = &wistron_device->dev;
1239
1240         error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
1241         if (error)
1242                 goto err_free_dev;
1243
1244         error = input_register_polled_device(wistron_idev);
1245         if (error)
1246                 goto err_free_keymap;
1247
1248         return 0;
1249
1250  err_free_keymap:
1251         sparse_keymap_free(input_dev);
1252  err_free_dev:
1253         input_free_polled_device(wistron_idev);
1254         return error;
1255 }
1256
1257 /* Driver core */
1258
1259 static int wistron_probe(struct platform_device *dev)
1260 {
1261         int err;
1262
1263         bios_attach();
1264         cmos_address = bios_get_cmos_address();
1265
1266         if (have_wifi) {
1267                 u16 wifi = bios_get_default_setting(WIFI);
1268                 if (wifi & 1)
1269                         wifi_enabled = wifi & 2;
1270                 else
1271                         have_wifi = 0;
1272
1273                 if (have_wifi)
1274                         bios_set_state(WIFI, wifi_enabled);
1275         }
1276
1277         if (have_bluetooth) {
1278                 u16 bt = bios_get_default_setting(BLUETOOTH);
1279                 if (bt & 1)
1280                         bluetooth_enabled = bt & 2;
1281                 else
1282                         have_bluetooth = false;
1283
1284                 if (have_bluetooth)
1285                         bios_set_state(BLUETOOTH, bluetooth_enabled);
1286         }
1287
1288         wistron_led_init(&dev->dev);
1289
1290         err = setup_input_dev();
1291         if (err) {
1292                 bios_detach();
1293                 return err;
1294         }
1295
1296         return 0;
1297 }
1298
1299 static int wistron_remove(struct platform_device *dev)
1300 {
1301         wistron_led_remove();
1302         input_unregister_polled_device(wistron_idev);
1303         sparse_keymap_free(wistron_idev->input);
1304         input_free_polled_device(wistron_idev);
1305         bios_detach();
1306
1307         return 0;
1308 }
1309
1310 #ifdef CONFIG_PM
1311 static int wistron_suspend(struct device *dev)
1312 {
1313         if (have_wifi)
1314                 bios_set_state(WIFI, 0);
1315
1316         if (have_bluetooth)
1317                 bios_set_state(BLUETOOTH, 0);
1318
1319         wistron_led_suspend();
1320
1321         return 0;
1322 }
1323
1324 static int wistron_resume(struct device *dev)
1325 {
1326         if (have_wifi)
1327                 bios_set_state(WIFI, wifi_enabled);
1328
1329         if (have_bluetooth)
1330                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1331
1332         wistron_led_resume();
1333
1334         poll_bios(true);
1335
1336         return 0;
1337 }
1338
1339 static const struct dev_pm_ops wistron_pm_ops = {
1340         .suspend        = wistron_suspend,
1341         .resume         = wistron_resume,
1342         .poweroff       = wistron_suspend,
1343         .restore        = wistron_resume,
1344 };
1345 #endif
1346
1347 static struct platform_driver wistron_driver = {
1348         .driver         = {
1349                 .name   = "wistron-bios",
1350 #ifdef CONFIG_PM
1351                 .pm     = &wistron_pm_ops,
1352 #endif
1353         },
1354         .probe          = wistron_probe,
1355         .remove         = wistron_remove,
1356 };
1357
1358 static int __init wb_module_init(void)
1359 {
1360         int err;
1361
1362         err = select_keymap();
1363         if (err)
1364                 return err;
1365
1366         err = map_bios();
1367         if (err)
1368                 goto err_free_keymap;
1369
1370         err = platform_driver_register(&wistron_driver);
1371         if (err)
1372                 goto err_unmap_bios;
1373
1374         wistron_device = platform_device_alloc("wistron-bios", -1);
1375         if (!wistron_device) {
1376                 err = -ENOMEM;
1377                 goto err_unregister_driver;
1378         }
1379
1380         err = platform_device_add(wistron_device);
1381         if (err)
1382                 goto err_free_device;
1383
1384         return 0;
1385
1386  err_free_device:
1387         platform_device_put(wistron_device);
1388  err_unregister_driver:
1389         platform_driver_unregister(&wistron_driver);
1390  err_unmap_bios:
1391         unmap_bios();
1392  err_free_keymap:
1393         kfree(keymap);
1394
1395         return err;
1396 }
1397
1398 static void __exit wb_module_exit(void)
1399 {
1400         platform_device_unregister(wistron_device);
1401         platform_driver_unregister(&wistron_driver);
1402         unmap_bios();
1403         kfree(keymap);
1404 }
1405
1406 module_init(wb_module_init);
1407 module_exit(wb_module_exit);