drivers/input/misc/wistron_btns.c

   1 /*
   2  * Wistron laptop button driver
   3  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
   4  * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
   5  * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
   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/interrupt.h>
  25 #include <linux/jiffies.h>
  26 #include <linux/kernel.h>
  27 #include <linux/mc146818rtc.h>
  28 #include <linux/module.h>
  29 #include <linux/preempt.h>
  30 #include <linux/string.h>
  31 #include <linux/types.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/leds.h>
  34
  35 /* How often we poll keys - msecs */
  36 #define POLL_INTERVAL_DEFAULT   500 /* when idle */
  37 #define POLL_INTERVAL_BURST     100 /* when a key was recently pressed */
  38
  39 /* BIOS subsystem IDs */
  40 #define WIFI            0x35
  41 #define BLUETOOTH       0x34
  42 #define MAIL_LED        0x31
  43
  44 MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
  45 MODULE_DESCRIPTION("Wistron laptop button driver");
  46 MODULE_LICENSE("GPL v2");
  47 MODULE_VERSION("0.3");
  48
  49 static int force; /* = 0; */
  50 module_param(force, bool, 0);
  51 MODULE_PARM_DESC(force, "Load even if computer is not in database");
  52
  53 static char *keymap_name; /* = NULL; */
  54 module_param_named(keymap, keymap_name, charp, 0);
  55 MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");
  56
  57 static struct platform_device *wistron_device;
  58
  59  /* BIOS interface implementation */
  60
  61 static void __iomem *bios_entry_point; /* BIOS routine entry point */
  62 static void __iomem *bios_code_map_base;
  63 static void __iomem *bios_data_map_base;
  64
  65 static u8 cmos_address;
  66
  67 struct regs {
  68         u32 eax, ebx, ecx;
  69 };
  70
  71 static void call_bios(struct regs *regs)
  72 {
  73         unsigned long flags;
  74
  75         preempt_disable();
  76         local_irq_save(flags);
  77         asm volatile ("pushl %%ebp;"
  78                       "movl %7, %%ebp;"
  79                       "call *%6;"
  80                       "popl %%ebp"
  81                       : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
  82                       : "0" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
  83                         "m" (bios_entry_point), "m" (bios_data_map_base)
  84                       : "edx", "edi", "esi", "memory");
  85         local_irq_restore(flags);
  86         preempt_enable();
  87 }
  88
  89 static ssize_t __init locate_wistron_bios(void __iomem *base)
  90 {
  91         static unsigned char __initdata signature[] =
  92                 { 0x42, 0x21, 0x55, 0x30 };
  93         ssize_t offset;
  94
  95         for (offset = 0; offset < 0x10000; offset += 0x10) {
  96                 if (check_signature(base + offset, signature,
  97                                     sizeof(signature)) != 0)
  98                         return offset;
  99         }
 100         return -1;
 101 }
 102
 103 static int __init map_bios(void)
 104 {
 105         void __iomem *base;
 106         ssize_t offset;
 107         u32 entry_point;
 108
 109         base = ioremap(0xF0000, 0x10000); /* Can't fail */
 110         offset = locate_wistron_bios(base);
 111         if (offset < 0) {
 112                 printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
 113                 iounmap(base);
 114                 return -ENODEV;
 115         }
 116
 117         entry_point = readl(base + offset + 5);
 118         printk(KERN_DEBUG
 119                 "wistron_btns: BIOS signature found at %p, entry point %08X\n",
 120                 base + offset, entry_point);
 121
 122         if (entry_point >= 0xF0000) {
 123                 bios_code_map_base = base;
 124                 bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
 125         } else {
 126                 iounmap(base);
 127                 bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
 128                 if (bios_code_map_base == NULL) {
 129                         printk(KERN_ERR
 130                                 "wistron_btns: Can't map BIOS code at %08X\n",
 131                                 entry_point & ~0x3FFF);
 132                         goto err;
 133                 }
 134                 bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
 135         }
 136         /* The Windows driver maps 0x10000 bytes, we keep only one page... */
 137         bios_data_map_base = ioremap(0x400, 0xc00);
 138         if (bios_data_map_base == NULL) {
 139                 printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
 140                 goto err_code;
 141         }
 142         return 0;
 143
 144 err_code:
 145         iounmap(bios_code_map_base);
 146 err:
 147         return -ENOMEM;
 148 }
 149
 150 static inline void unmap_bios(void)
 151 {
 152         iounmap(bios_code_map_base);
 153         iounmap(bios_data_map_base);
 154 }
 155
 156  /* BIOS calls */
 157
 158 static u16 bios_pop_queue(void)
 159 {
 160         struct regs regs;
 161
 162         memset(&regs, 0, sizeof (regs));
 163         regs.eax = 0x9610;
 164         regs.ebx = 0x061C;
 165         regs.ecx = 0x0000;
 166         call_bios(&regs);
 167
 168         return regs.eax;
 169 }
 170
 171 static void __devinit bios_attach(void)
 172 {
 173         struct regs regs;
 174
 175         memset(&regs, 0, sizeof (regs));
 176         regs.eax = 0x9610;
 177         regs.ebx = 0x012E;
 178         call_bios(&regs);
 179 }
 180
 181 static void bios_detach(void)
 182 {
 183         struct regs regs;
 184
 185         memset(&regs, 0, sizeof (regs));
 186         regs.eax = 0x9610;
 187         regs.ebx = 0x002E;
 188         call_bios(&regs);
 189 }
 190
 191 static u8 __devinit bios_get_cmos_address(void)
 192 {
 193         struct regs regs;
 194
 195         memset(&regs, 0, sizeof (regs));
 196         regs.eax = 0x9610;
 197         regs.ebx = 0x051C;
 198         call_bios(&regs);
 199
 200         return regs.ecx;
 201 }
 202
 203 static u16 __devinit bios_get_default_setting(u8 subsys)
 204 {
 205         struct regs regs;
 206
 207         memset(&regs, 0, sizeof (regs));
 208         regs.eax = 0x9610;
 209         regs.ebx = 0x0200 | subsys;
 210         call_bios(&regs);
 211
 212         return regs.eax;
 213 }
 214
 215 static void bios_set_state(u8 subsys, int enable)
 216 {
 217         struct regs regs;
 218
 219         memset(&regs, 0, sizeof (regs));
 220         regs.eax = 0x9610;
 221         regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
 222         call_bios(&regs);
 223 }
 224
 225 /* Hardware database */
 226
 227 struct key_entry {
 228         char type;              /* See KE_* below */
 229         u8 code;
 230         union {
 231                 u16 keycode;            /* For KE_KEY */
 232                 struct {                /* For KE_SW */
 233                         u8 code;
 234                         u8 value;
 235                 } sw;
 236         };
 237 };
 238
 239 enum { KE_END, KE_KEY, KE_SW, KE_WIFI, KE_BLUETOOTH };
 240
 241 #define FE_MAIL_LED 0x01
 242 #define FE_WIFI_LED 0x02
 243 #define FE_UNTESTED 0x80
 244
 245 static struct key_entry *keymap; /* = NULL; Current key map */
 246 static int have_wifi;
 247 static int have_bluetooth;
 248 static int have_leds;
 249
 250 static int __init dmi_matched(const struct dmi_system_id *dmi)
 251 {
 252         const struct key_entry *key;
 253
 254         keymap = dmi->driver_data;
 255         for (key = keymap; key->type != KE_END; key++) {
 256                 if (key->type == KE_WIFI)
 257                         have_wifi = 1;
 258                 else if (key->type == KE_BLUETOOTH)
 259                         have_bluetooth = 1;
 260         }
 261         have_leds = key->code & (FE_MAIL_LED | FE_WIFI_LED);
 262
 263         return 1;
 264 }
 265
 266 static struct key_entry keymap_empty[] __initdata = {
 267         { KE_END, 0 }
 268 };
 269
 270 static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
 271         { KE_KEY,  0x01, {KEY_HELP} },
 272         { KE_KEY,  0x11, {KEY_PROG1} },
 273         { KE_KEY,  0x12, {KEY_PROG2} },
 274         { KE_WIFI, 0x30 },
 275         { KE_KEY,  0x31, {KEY_MAIL} },
 276         { KE_KEY,  0x36, {KEY_WWW} },
 277         { KE_END,  0 }
 278 };
 279
 280 static struct key_entry keymap_fujitsu_n3510[] __initdata = {
 281         { KE_KEY, 0x11, {KEY_PROG1} },
 282         { KE_KEY, 0x12, {KEY_PROG2} },
 283         { KE_KEY, 0x36, {KEY_WWW} },
 284         { KE_KEY, 0x31, {KEY_MAIL} },
 285         { KE_KEY, 0x71, {KEY_STOPCD} },
 286         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
 287         { KE_KEY, 0x74, {KEY_REWIND} },
 288         { KE_KEY, 0x78, {KEY_FORWARD} },
 289         { KE_END, 0 }
 290 };
 291
 292 static struct key_entry keymap_wistron_ms2111[] __initdata = {
 293         { KE_KEY,  0x11, {KEY_PROG1} },
 294         { KE_KEY,  0x12, {KEY_PROG2} },
 295         { KE_KEY,  0x13, {KEY_PROG3} },
 296         { KE_KEY,  0x31, {KEY_MAIL} },
 297         { KE_KEY,  0x36, {KEY_WWW} },
 298         { KE_END, FE_MAIL_LED }
 299 };
 300
 301 static struct key_entry keymap_wistron_md40100[] __initdata = {
 302         { KE_KEY, 0x01, {KEY_HELP} },
 303         { KE_KEY, 0x02, {KEY_CONFIG} },
 304         { KE_KEY, 0x31, {KEY_MAIL} },
 305         { KE_KEY, 0x36, {KEY_WWW} },
 306         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 307         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 308 };
 309
 310 static struct key_entry keymap_wistron_ms2141[] __initdata = {
 311         { KE_KEY,  0x11, {KEY_PROG1} },
 312         { KE_KEY,  0x12, {KEY_PROG2} },
 313         { KE_WIFI, 0x30 },
 314         { KE_KEY,  0x22, {KEY_REWIND} },
 315         { KE_KEY,  0x23, {KEY_FORWARD} },
 316         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
 317         { KE_KEY,  0x25, {KEY_STOPCD} },
 318         { KE_KEY,  0x31, {KEY_MAIL} },
 319         { KE_KEY,  0x36, {KEY_WWW} },
 320         { KE_END,  0 }
 321 };
 322
 323 static struct key_entry keymap_acer_aspire_1500[] __initdata = {
 324         { KE_KEY, 0x01, {KEY_HELP} },
 325         { KE_KEY, 0x03, {KEY_POWER} },
 326         { KE_KEY, 0x11, {KEY_PROG1} },
 327         { KE_KEY, 0x12, {KEY_PROG2} },
 328         { KE_WIFI, 0x30 },
 329         { KE_KEY, 0x31, {KEY_MAIL} },
 330         { KE_KEY, 0x36, {KEY_WWW} },
 331         { KE_KEY, 0x49, {KEY_CONFIG} },
 332         { KE_BLUETOOTH, 0x44 },
 333         { KE_END, FE_UNTESTED }
 334 };
 335
 336 static struct key_entry keymap_acer_aspire_1600[] __initdata = {
 337         { KE_KEY, 0x01, {KEY_HELP} },
 338         { KE_KEY, 0x03, {KEY_POWER} },
 339         { KE_KEY, 0x08, {KEY_MUTE} },
 340         { KE_KEY, 0x11, {KEY_PROG1} },
 341         { KE_KEY, 0x12, {KEY_PROG2} },
 342         { KE_KEY, 0x13, {KEY_PROG3} },
 343         { KE_KEY, 0x31, {KEY_MAIL} },
 344         { KE_KEY, 0x36, {KEY_WWW} },
 345         { KE_KEY, 0x49, {KEY_CONFIG} },
 346         { KE_WIFI, 0x30 },
 347         { KE_BLUETOOTH, 0x44 },
 348         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 349 };
 350
 351 /* 3020 has been tested */
 352 static struct key_entry keymap_acer_aspire_5020[] __initdata = {
 353         { KE_KEY, 0x01, {KEY_HELP} },
 354         { KE_KEY, 0x03, {KEY_POWER} },
 355         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 356         { KE_KEY, 0x11, {KEY_PROG1} },
 357         { KE_KEY, 0x12, {KEY_PROG2} },
 358         { KE_KEY, 0x31, {KEY_MAIL} },
 359         { KE_KEY, 0x36, {KEY_WWW} },
 360         { KE_KEY, 0x6a, {KEY_CONFIG} },
 361         { KE_WIFI, 0x30 },
 362         { KE_BLUETOOTH, 0x44 },
 363         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 364 };
 365
 366 static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
 367         { KE_KEY, 0x01, {KEY_HELP} },
 368         { KE_KEY, 0x6d, {KEY_POWER} },
 369         { KE_KEY, 0x11, {KEY_PROG1} },
 370         { KE_KEY, 0x12, {KEY_PROG2} },
 371         { KE_KEY, 0x31, {KEY_MAIL} },
 372         { KE_KEY, 0x36, {KEY_WWW} },
 373         { KE_KEY, 0x6a, {KEY_CONFIG} },
 374         { KE_WIFI, 0x30 },
 375         { KE_BLUETOOTH, 0x44 },
 376         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 377 };
 378
 379 static struct key_entry keymap_acer_travelmate_110[] __initdata = {
 380         { KE_KEY, 0x01, {KEY_HELP} },
 381         { KE_KEY, 0x02, {KEY_CONFIG} },
 382         { KE_KEY, 0x03, {KEY_POWER} },
 383         { KE_KEY, 0x08, {KEY_MUTE} },
 384         { KE_KEY, 0x11, {KEY_PROG1} },
 385         { KE_KEY, 0x12, {KEY_PROG2} },
 386         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 387         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 388         { KE_KEY, 0x31, {KEY_MAIL} },
 389         { KE_KEY, 0x36, {KEY_WWW} },
 390         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
 391         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
 392         { KE_WIFI, 0x30 },
 393         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 394 };
 395
 396 static struct key_entry keymap_acer_travelmate_300[] __initdata = {
 397         { KE_KEY, 0x01, {KEY_HELP} },
 398         { KE_KEY, 0x02, {KEY_CONFIG} },
 399         { KE_KEY, 0x03, {KEY_POWER} },
 400         { KE_KEY, 0x08, {KEY_MUTE} },
 401         { KE_KEY, 0x11, {KEY_PROG1} },
 402         { KE_KEY, 0x12, {KEY_PROG2} },
 403         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 404         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 405         { KE_KEY, 0x31, {KEY_MAIL} },
 406         { KE_KEY, 0x36, {KEY_WWW} },
 407         { KE_WIFI, 0x30 },
 408         { KE_BLUETOOTH, 0x44 },
 409         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 410 };
 411
 412 static struct key_entry keymap_acer_travelmate_380[] __initdata = {
 413         { KE_KEY, 0x01, {KEY_HELP} },
 414         { KE_KEY, 0x02, {KEY_CONFIG} },
 415         { KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
 416         { KE_KEY, 0x11, {KEY_PROG1} },
 417         { KE_KEY, 0x12, {KEY_PROG2} },
 418         { KE_KEY, 0x13, {KEY_PROG3} },
 419         { KE_KEY, 0x31, {KEY_MAIL} },
 420         { KE_KEY, 0x36, {KEY_WWW} },
 421         { KE_WIFI, 0x30 },
 422         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 423 };
 424
 425 /* unusual map */
 426 static struct key_entry keymap_acer_travelmate_220[] __initdata = {
 427         { KE_KEY, 0x01, {KEY_HELP} },
 428         { KE_KEY, 0x02, {KEY_CONFIG} },
 429         { KE_KEY, 0x11, {KEY_MAIL} },
 430         { KE_KEY, 0x12, {KEY_WWW} },
 431         { KE_KEY, 0x13, {KEY_PROG2} },
 432         { KE_KEY, 0x31, {KEY_PROG1} },
 433         { KE_END, FE_WIFI_LED | FE_UNTESTED }
 434 };
 435
 436 static struct key_entry keymap_acer_travelmate_230[] __initdata = {
 437         { KE_KEY, 0x01, {KEY_HELP} },
 438         { KE_KEY, 0x02, {KEY_CONFIG} },
 439         { KE_KEY, 0x11, {KEY_PROG1} },
 440         { KE_KEY, 0x12, {KEY_PROG2} },
 441         { KE_KEY, 0x31, {KEY_MAIL} },
 442         { KE_KEY, 0x36, {KEY_WWW} },
 443         { KE_END, FE_WIFI_LED | FE_UNTESTED }
 444 };
 445
 446 static struct key_entry keymap_acer_travelmate_240[] __initdata = {
 447         { KE_KEY, 0x01, {KEY_HELP} },
 448         { KE_KEY, 0x02, {KEY_CONFIG} },
 449         { KE_KEY, 0x03, {KEY_POWER} },
 450         { KE_KEY, 0x08, {KEY_MUTE} },
 451         { KE_KEY, 0x31, {KEY_MAIL} },
 452         { KE_KEY, 0x36, {KEY_WWW} },
 453         { KE_KEY, 0x11, {KEY_PROG1} },
 454         { KE_KEY, 0x12, {KEY_PROG2} },
 455         { KE_BLUETOOTH, 0x44 },
 456         { KE_WIFI, 0x30 },
 457         { KE_END, FE_UNTESTED }
 458 };
 459
 460 static struct key_entry keymap_acer_travelmate_350[] __initdata = {
 461         { KE_KEY, 0x01, {KEY_HELP} },
 462         { KE_KEY, 0x02, {KEY_CONFIG} },
 463         { KE_KEY, 0x11, {KEY_PROG1} },
 464         { KE_KEY, 0x12, {KEY_PROG2} },
 465         { KE_KEY, 0x13, {KEY_MAIL} },
 466         { KE_KEY, 0x14, {KEY_PROG3} },
 467         { KE_KEY, 0x15, {KEY_WWW} },
 468         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 469 };
 470
 471 static struct key_entry keymap_acer_travelmate_360[] __initdata = {
 472         { KE_KEY, 0x01, {KEY_HELP} },
 473         { KE_KEY, 0x02, {KEY_CONFIG} },
 474         { KE_KEY, 0x11, {KEY_PROG1} },
 475         { KE_KEY, 0x12, {KEY_PROG2} },
 476         { KE_KEY, 0x13, {KEY_MAIL} },
 477         { KE_KEY, 0x14, {KEY_PROG3} },
 478         { KE_KEY, 0x15, {KEY_WWW} },
 479         { KE_KEY, 0x40, {KEY_WLAN} },
 480         { KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
 481 };
 482
 483 /* Wifi subsystem only activates the led. Therefore we need to pass
 484  * wifi event as a normal key, then userspace can really change the wifi state.
 485  * TODO we need to export led state to userspace (wifi and mail) */
 486 static struct key_entry keymap_acer_travelmate_610[] __initdata = {
 487         { KE_KEY, 0x01, {KEY_HELP} },
 488         { KE_KEY, 0x02, {KEY_CONFIG} },
 489         { KE_KEY, 0x11, {KEY_PROG1} },
 490         { KE_KEY, 0x12, {KEY_PROG2} },
 491         { KE_KEY, 0x13, {KEY_PROG3} },
 492         { KE_KEY, 0x14, {KEY_MAIL} },
 493         { KE_KEY, 0x15, {KEY_WWW} },
 494         { KE_KEY, 0x40, {KEY_WLAN} },
 495         { KE_END, FE_MAIL_LED | FE_WIFI_LED }
 496 };
 497
 498 static struct key_entry keymap_acer_travelmate_630[] __initdata = {
 499         { KE_KEY, 0x01, {KEY_HELP} },
 500         { KE_KEY, 0x02, {KEY_CONFIG} },
 501         { KE_KEY, 0x03, {KEY_POWER} },
 502         { KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
 503         { KE_KEY, 0x11, {KEY_PROG1} },
 504         { KE_KEY, 0x12, {KEY_PROG2} },
 505         { KE_KEY, 0x13, {KEY_PROG3} },
 506         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 507         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 508         { KE_KEY, 0x31, {KEY_MAIL} },
 509         { KE_KEY, 0x36, {KEY_WWW} },
 510         { KE_WIFI, 0x30 },
 511         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 512 };
 513
 514 static struct key_entry keymap_aopen_1559as[] __initdata = {
 515         { KE_KEY,  0x01, {KEY_HELP} },
 516         { KE_KEY,  0x06, {KEY_PROG3} },
 517         { KE_KEY,  0x11, {KEY_PROG1} },
 518         { KE_KEY,  0x12, {KEY_PROG2} },
 519         { KE_WIFI, 0x30 },
 520         { KE_KEY,  0x31, {KEY_MAIL} },
 521         { KE_KEY,  0x36, {KEY_WWW} },
 522         { KE_END,  0 },
 523 };
 524
 525 static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
 526         { KE_KEY, 0x01, {KEY_HELP} },
 527         { KE_KEY, 0x08, {KEY_MUTE} },
 528         { KE_KEY, 0x31, {KEY_MAIL} },
 529         { KE_KEY, 0x36, {KEY_WWW} },
 530         { KE_KEY, 0x11, {KEY_PROG1} },
 531         { KE_KEY, 0x12, {KEY_PROG2} },
 532         { KE_KEY, 0x13, {KEY_PROG3} },
 533         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
 534 };
 535
 536 static struct key_entry keymap_wistron_md2900[] __initdata = {
 537         { KE_KEY, 0x01, {KEY_HELP} },
 538         { KE_KEY, 0x02, {KEY_CONFIG} },
 539         { KE_KEY, 0x11, {KEY_PROG1} },
 540         { KE_KEY, 0x12, {KEY_PROG2} },
 541         { KE_KEY, 0x31, {KEY_MAIL} },
 542         { KE_KEY, 0x36, {KEY_WWW} },
 543         { KE_WIFI, 0x30 },
 544         { KE_END, FE_MAIL_LED | FE_UNTESTED }
 545 };
 546
 547 static struct key_entry keymap_wistron_md96500[] __initdata = {
 548         { KE_KEY, 0x01, {KEY_HELP} },
 549         { KE_KEY, 0x02, {KEY_CONFIG} },
 550         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 551         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 552         { KE_KEY, 0x08, {KEY_MUTE} },
 553         { KE_KEY, 0x11, {KEY_PROG1} },
 554         { KE_KEY, 0x12, {KEY_PROG2} },
 555         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 556         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 557         { KE_KEY, 0x22, {KEY_REWIND} },
 558         { KE_KEY, 0x23, {KEY_FORWARD} },
 559         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
 560         { KE_KEY, 0x25, {KEY_STOPCD} },
 561         { KE_KEY, 0x31, {KEY_MAIL} },
 562         { KE_KEY, 0x36, {KEY_WWW} },
 563         { KE_WIFI, 0x30 },
 564         { KE_BLUETOOTH, 0x44 },
 565         { KE_END, FE_UNTESTED }
 566 };
 567
 568 static struct key_entry keymap_wistron_generic[] __initdata = {
 569         { KE_KEY, 0x01, {KEY_HELP} },
 570         { KE_KEY, 0x02, {KEY_CONFIG} },
 571         { KE_KEY, 0x03, {KEY_POWER} },
 572         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
 573         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 574         { KE_KEY, 0x08, {KEY_MUTE} },
 575         { KE_KEY, 0x11, {KEY_PROG1} },
 576         { KE_KEY, 0x12, {KEY_PROG2} },
 577         { KE_KEY, 0x13, {KEY_PROG3} },
 578         { KE_KEY, 0x14, {KEY_MAIL} },
 579         { KE_KEY, 0x15, {KEY_WWW} },
 580         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
 581         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
 582         { KE_KEY, 0x22, {KEY_REWIND} },
 583         { KE_KEY, 0x23, {KEY_FORWARD} },
 584         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
 585         { KE_KEY, 0x25, {KEY_STOPCD} },
 586         { KE_KEY, 0x31, {KEY_MAIL} },
 587         { KE_KEY, 0x36, {KEY_WWW} },
 588         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
 589         { KE_KEY, 0x40, {KEY_WLAN} },
 590         { KE_KEY, 0x49, {KEY_CONFIG} },
 591         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
 592         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
 593         { KE_KEY, 0x6a, {KEY_CONFIG} },
 594         { KE_KEY, 0x6d, {KEY_POWER} },
 595         { KE_KEY, 0x71, {KEY_STOPCD} },
 596         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
 597         { KE_KEY, 0x74, {KEY_REWIND} },
 598         { KE_KEY, 0x78, {KEY_FORWARD} },
 599         { KE_WIFI, 0x30 },
 600         { KE_BLUETOOTH, 0x44 },
 601         { KE_END, 0 }
 602 };
 603
 604 /*
 605  * If your machine is not here (which is currently rather likely), please send
 606  * a list of buttons and their key codes (reported when loading this module
 607  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
 608  */
 609 static struct dmi_system_id dmi_ids[] __initdata = {
 610         {
 611                 .callback = dmi_matched,
 612                 .ident = "Fujitsu-Siemens Amilo Pro V2000",
 613                 .matches = {
 614                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 615                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
 616                 },
 617                 .driver_data = keymap_fs_amilo_pro_v2000
 618         },
 619         {
 620                 .callback = dmi_matched,
 621                 .ident = "Fujitsu-Siemens Amilo M7400",
 622                 .matches = {
 623                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 624                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M        "),
 625                 },
 626                 .driver_data = keymap_fs_amilo_pro_v2000
 627         },
 628         {
 629                 .callback = dmi_matched,
 630                 .ident = "Fujitsu N3510",
 631                 .matches = {
 632                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 633                         DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
 634                 },
 635                 .driver_data = keymap_fujitsu_n3510
 636         },
 637         {
 638                 .callback = dmi_matched,
 639                 .ident = "Acer Aspire 1500",
 640                 .matches = {
 641                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 642                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
 643                 },
 644                 .driver_data = keymap_acer_aspire_1500
 645         },
 646         {
 647                 .callback = dmi_matched,
 648                 .ident = "Acer Aspire 1600",
 649                 .matches = {
 650                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 651                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
 652                 },
 653                 .driver_data = keymap_acer_aspire_1600
 654         },
 655         {
 656                 .callback = dmi_matched,
 657                 .ident = "Acer Aspire 3020",
 658                 .matches = {
 659                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 660                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
 661                 },
 662                 .driver_data = keymap_acer_aspire_5020
 663         },
 664         {
 665                 .callback = dmi_matched,
 666                 .ident = "Acer Aspire 5020",
 667                 .matches = {
 668                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 669                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
 670                 },
 671                 .driver_data = keymap_acer_aspire_5020
 672         },
 673         {
 674                 .callback = dmi_matched,
 675                 .ident = "Acer TravelMate 2100",
 676                 .matches = {
 677                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 678                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
 679                 },
 680                 .driver_data = keymap_acer_aspire_5020
 681         },
 682         {
 683                 .callback = dmi_matched,
 684                 .ident = "Acer TravelMate 2410",
 685                 .matches = {
 686                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 687                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
 688                 },
 689                 .driver_data = keymap_acer_travelmate_2410
 690         },
 691         {
 692                 .callback = dmi_matched,
 693                 .ident = "Acer TravelMate C300",
 694                 .matches = {
 695                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 696                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
 697                 },
 698                 .driver_data = keymap_acer_travelmate_300
 699         },
 700         {
 701                 .callback = dmi_matched,
 702                 .ident = "Acer TravelMate C100",
 703                 .matches = {
 704                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 705                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
 706                 },
 707                 .driver_data = keymap_acer_travelmate_300
 708         },
 709         {
 710                 .callback = dmi_matched,
 711                 .ident = "Acer TravelMate C110",
 712                 .matches = {
 713                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 714                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
 715                 },
 716                 .driver_data = keymap_acer_travelmate_110
 717         },
 718         {
 719                 .callback = dmi_matched,
 720                 .ident = "Acer TravelMate 380",
 721                 .matches = {
 722                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 723                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
 724                 },
 725                 .driver_data = keymap_acer_travelmate_380
 726         },
 727         {
 728                 .callback = dmi_matched,
 729                 .ident = "Acer TravelMate 370",
 730                 .matches = {
 731                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 732                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
 733                 },
 734                 .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
 735         },
 736         {
 737                 .callback = dmi_matched,
 738                 .ident = "Acer TravelMate 220",
 739                 .matches = {
 740                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 741                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
 742                 },
 743                 .driver_data = keymap_acer_travelmate_220
 744         },
 745         {
 746                 .callback = dmi_matched,
 747                 .ident = "Acer TravelMate 260",
 748                 .matches = {
 749                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 750                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
 751                 },
 752                 .driver_data = keymap_acer_travelmate_220
 753         },
 754         {
 755                 .callback = dmi_matched,
 756                 .ident = "Acer TravelMate 230",
 757                 .matches = {
 758                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 759                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
 760                         /* acerhk looks for "TravelMate F4..." ?! */
 761                 },
 762                 .driver_data = keymap_acer_travelmate_230
 763         },
 764         {
 765                 .callback = dmi_matched,
 766                 .ident = "Acer TravelMate 280",
 767                 .matches = {
 768                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 769                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
 770                 },
 771                 .driver_data = keymap_acer_travelmate_230
 772         },
 773         {
 774                 .callback = dmi_matched,
 775                 .ident = "Acer TravelMate 240",
 776                 .matches = {
 777                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 778                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
 779                 },
 780                 .driver_data = keymap_acer_travelmate_240
 781         },
 782         {
 783                 .callback = dmi_matched,
 784                 .ident = "Acer TravelMate 250",
 785                 .matches = {
 786                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 787                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
 788                 },
 789                 .driver_data = keymap_acer_travelmate_240
 790         },
 791         {
 792                 .callback = dmi_matched,
 793                 .ident = "Acer TravelMate 2424NWXCi",
 794                 .matches = {
 795                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 796                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
 797                 },
 798                 .driver_data = keymap_acer_travelmate_240
 799         },
 800         {
 801                 .callback = dmi_matched,
 802                 .ident = "Acer TravelMate 350",
 803                 .matches = {
 804                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 805                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
 806                 },
 807                 .driver_data = keymap_acer_travelmate_350
 808         },
 809         {
 810                 .callback = dmi_matched,
 811                 .ident = "Acer TravelMate 360",
 812                 .matches = {
 813                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 814                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
 815                 },
 816                 .driver_data = keymap_acer_travelmate_360
 817         },
 818         {
 819                 .callback = dmi_matched,
 820                 .ident = "Acer TravelMate 610",
 821                 .matches = {
 822                         DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
 823                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
 824                 },
 825                 .driver_data = keymap_acer_travelmate_610
 826         },
 827         {
 828                 .callback = dmi_matched,
 829                 .ident = "Acer TravelMate 620",
 830                 .matches = {
 831                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 832                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
 833                 },
 834                 .driver_data = keymap_acer_travelmate_630
 835         },
 836         {
 837                 .callback = dmi_matched,
 838                 .ident = "Acer TravelMate 630",
 839                 .matches = {
 840                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 841                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
 842                 },
 843                 .driver_data = keymap_acer_travelmate_630
 844         },
 845         {
 846                 .callback = dmi_matched,
 847                 .ident = "AOpen 1559AS",
 848                 .matches = {
 849                         DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
 850                         DMI_MATCH(DMI_BOARD_NAME, "E2U"),
 851                 },
 852                 .driver_data = keymap_aopen_1559as
 853         },
 854         {
 855                 .callback = dmi_matched,
 856                 .ident = "Medion MD 9783",
 857                 .matches = {
 858                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 859                         DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
 860                 },
 861                 .driver_data = keymap_wistron_ms2111
 862         },
 863         {
 864                 .callback = dmi_matched,
 865                 .ident = "Medion MD 40100",
 866                 .matches = {
 867                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 868                         DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
 869                 },
 870                 .driver_data = keymap_wistron_md40100
 871         },
 872         {
 873                 .callback = dmi_matched,
 874                 .ident = "Medion MD 2900",
 875                 .matches = {
 876                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 877                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
 878                 },
 879                 .driver_data = keymap_wistron_md2900
 880         },
 881         {
 882                 .callback = dmi_matched,
 883                 .ident = "Medion MD 96500",
 884                 .matches = {
 885                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 886                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
 887                 },
 888                 .driver_data = keymap_wistron_md96500
 889         },
 890         {
 891                 .callback = dmi_matched,
 892                 .ident = "Medion MD 95400",
 893                 .matches = {
 894                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 895                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
 896                 },
 897                 .driver_data = keymap_wistron_md96500
 898         },
 899         {
 900                 .callback = dmi_matched,
 901                 .ident = "Fujitsu Siemens Amilo D7820",
 902                 .matches = {
 903                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
 904                         DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
 905                 },
 906                 .driver_data = keymap_fs_amilo_d88x0
 907         },
 908         {
 909                 .callback = dmi_matched,
 910                 .ident = "Fujitsu Siemens Amilo D88x0",
 911                 .matches = {
 912                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 913                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
 914                 },
 915                 .driver_data = keymap_fs_amilo_d88x0
 916         },
 917         { NULL, }
 918 };
 919
 920 /* Copy the good keymap, as the original ones are free'd */
 921 static int __init copy_keymap(void)
 922 {
 923         const struct key_entry *key;
 924         struct key_entry *new_keymap;
 925         unsigned int length = 1;
 926
 927         for (key = keymap; key->type != KE_END; key++)
 928                 length++;
 929
 930         new_keymap = kmalloc(length * sizeof(struct key_entry), GFP_KERNEL);
 931         if (!new_keymap)
 932                 return -ENOMEM;
 933
 934         memcpy(new_keymap, keymap, length * sizeof(struct key_entry));
 935         keymap = new_keymap;
 936
 937         return 0;
 938 }
 939
 940 static int __init select_keymap(void)
 941 {
 942         dmi_check_system(dmi_ids);
 943         if (keymap_name != NULL) {
 944                 if (strcmp (keymap_name, "1557/MS2141") == 0)
 945                         keymap = keymap_wistron_ms2141;
 946                 else if (strcmp (keymap_name, "generic") == 0)
 947                         keymap = keymap_wistron_generic;
 948                 else {
 949                         printk(KERN_ERR "wistron_btns: Keymap unknown\n");
 950                         return -EINVAL;
 951                 }
 952         }
 953         if (keymap == NULL) {
 954                 if (!force) {
 955                         printk(KERN_ERR "wistron_btns: System unknown\n");
 956                         return -ENODEV;
 957                 }
 958                 keymap = keymap_empty;
 959         }
 960
 961         return copy_keymap();
 962 }
 963
 964  /* Input layer interface */
 965
 966 static struct input_polled_dev *wistron_idev;
 967 static unsigned long jiffies_last_press;
 968 static int wifi_enabled;
 969 static int bluetooth_enabled;
 970
 971 static void report_key(struct input_dev *dev, unsigned int keycode)
 972 {
 973         input_report_key(dev, keycode, 1);
 974         input_sync(dev);
 975         input_report_key(dev, keycode, 0);
 976         input_sync(dev);
 977 }
 978
 979 static void report_switch(struct input_dev *dev, unsigned int code, int value)
 980 {
 981         input_report_switch(dev, code, value);
 982         input_sync(dev);
 983 }
 984
 985
 986  /* led management */
 987 static void wistron_mail_led_set(struct led_classdev *led_cdev,
 988                                 enum led_brightness value)
 989 {
 990         bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
 991 }
 992
 993 /* same as setting up wifi card, but for laptops on which the led is managed */
 994 static void wistron_wifi_led_set(struct led_classdev *led_cdev,
 995                                 enum led_brightness value)
 996 {
 997         bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
 998 }
 999
1000 static struct led_classdev wistron_mail_led = {
1001         .name                   = "wistron:green:mail",
1002         .brightness_set         = wistron_mail_led_set,
1003 };
1004
1005 static struct led_classdev wistron_wifi_led = {
1006         .name                   = "wistron:red:wifi",
1007         .brightness_set         = wistron_wifi_led_set,
1008 };
1009
1010 static void __devinit wistron_led_init(struct device *parent)
1011 {
1012         if (have_leds & FE_WIFI_LED) {
1013                 u16 wifi = bios_get_default_setting(WIFI);
1014                 if (wifi & 1) {
1015                         wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
1016                         if (led_classdev_register(parent, &wistron_wifi_led))
1017                                 have_leds &= ~FE_WIFI_LED;
1018                         else
1019                                 bios_set_state(WIFI, wistron_wifi_led.brightness);
1020
1021                 } else
1022                         have_leds &= ~FE_WIFI_LED;
1023         }
1024
1025         if (have_leds & FE_MAIL_LED) {
1026                 /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
1027                 wistron_mail_led.brightness = LED_OFF;
1028                 if (led_classdev_register(parent, &wistron_mail_led))
1029                         have_leds &= ~FE_MAIL_LED;
1030                 else
1031                         bios_set_state(MAIL_LED, wistron_mail_led.brightness);
1032         }
1033 }
1034
1035 static void __devexit wistron_led_remove(void)
1036 {
1037         if (have_leds & FE_MAIL_LED)
1038                 led_classdev_unregister(&wistron_mail_led);
1039
1040         if (have_leds & FE_WIFI_LED)
1041                 led_classdev_unregister(&wistron_wifi_led);
1042 }
1043
1044 static inline void wistron_led_suspend(void)
1045 {
1046         if (have_leds & FE_MAIL_LED)
1047                 led_classdev_suspend(&wistron_mail_led);
1048
1049         if (have_leds & FE_WIFI_LED)
1050                 led_classdev_suspend(&wistron_wifi_led);
1051 }
1052
1053 static inline void wistron_led_resume(void)
1054 {
1055         if (have_leds & FE_MAIL_LED)
1056                 led_classdev_resume(&wistron_mail_led);
1057
1058         if (have_leds & FE_WIFI_LED)
1059                 led_classdev_resume(&wistron_wifi_led);
1060 }
1061
1062 static struct key_entry *wistron_get_entry_by_scancode(int code)
1063 {
1064         struct key_entry *key;
1065
1066         for (key = keymap; key->type != KE_END; key++)
1067                 if (code == key->code)
1068                         return key;
1069
1070         return NULL;
1071 }
1072
1073 static struct key_entry *wistron_get_entry_by_keycode(int keycode)
1074 {
1075         struct key_entry *key;
1076
1077         for (key = keymap; key->type != KE_END; key++)
1078                 if (key->type == KE_KEY && keycode == key->keycode)
1079                         return key;
1080
1081         return NULL;
1082 }
1083
1084 static void handle_key(u8 code)
1085 {
1086         const struct key_entry *key = wistron_get_entry_by_scancode(code);
1087
1088         if (key) {
1089                 switch (key->type) {
1090                 case KE_KEY:
1091                         report_key(wistron_idev->input, key->keycode);
1092                         break;
1093
1094                 case KE_SW:
1095                         report_switch(wistron_idev->input,
1096                                       key->sw.code, key->sw.value);
1097                         break;
1098
1099                 case KE_WIFI:
1100                         if (have_wifi) {
1101                                 wifi_enabled = !wifi_enabled;
1102                                 bios_set_state(WIFI, wifi_enabled);
1103                         }
1104                         break;
1105
1106                 case KE_BLUETOOTH:
1107                         if (have_bluetooth) {
1108                                 bluetooth_enabled = !bluetooth_enabled;
1109                                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1110                         }
1111                         break;
1112
1113                 default:
1114                         BUG();
1115                 }
1116                 jiffies_last_press = jiffies;
1117         } else
1118                 printk(KERN_NOTICE
1119                         "wistron_btns: Unknown key code %02X\n", code);
1120 }
1121
1122 static void poll_bios(bool discard)
1123 {
1124         u8 qlen;
1125         u16 val;
1126
1127         for (;;) {
1128                 qlen = CMOS_READ(cmos_address);
1129                 if (qlen == 0)
1130                         break;
1131                 val = bios_pop_queue();
1132                 if (val != 0 && !discard)
1133                         handle_key((u8)val);
1134         }
1135 }
1136
1137 static void wistron_flush(struct input_polled_dev *dev)
1138 {
1139         /* Flush stale event queue */
1140         poll_bios(true);
1141 }
1142
1143 static void wistron_poll(struct input_polled_dev *dev)
1144 {
1145         poll_bios(false);
1146
1147         /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
1148         if (time_before(jiffies, jiffies_last_press + 2 * HZ))
1149                 dev->poll_interval = POLL_INTERVAL_BURST;
1150         else
1151                 dev->poll_interval = POLL_INTERVAL_DEFAULT;
1152 }
1153
1154 static int wistron_getkeycode(struct input_dev *dev, int scancode, int *keycode)
1155 {
1156         const struct key_entry *key = wistron_get_entry_by_scancode(scancode);
1157
1158         if (key && key->type == KE_KEY) {
1159                 *keycode = key->keycode;
1160                 return 0;
1161         }
1162
1163         return -EINVAL;
1164 }
1165
1166 static int wistron_setkeycode(struct input_dev *dev, int scancode, int keycode)
1167 {
1168         struct key_entry *key;
1169         int old_keycode;
1170
1171         if (keycode < 0 || keycode > KEY_MAX)
1172                 return -EINVAL;
1173
1174         key = wistron_get_entry_by_scancode(scancode);
1175         if (key && key->type == KE_KEY) {
1176                 old_keycode = key->keycode;
1177                 key->keycode = keycode;
1178                 set_bit(keycode, dev->keybit);
1179                 if (!wistron_get_entry_by_keycode(old_keycode))
1180                         clear_bit(old_keycode, dev->keybit);
1181                 return 0;
1182         }
1183
1184         return -EINVAL;
1185 }
1186
1187 static int __devinit setup_input_dev(void)
1188 {
1189         struct key_entry *key;
1190         struct input_dev *input_dev;
1191         int error;
1192
1193         wistron_idev = input_allocate_polled_device();
1194         if (!wistron_idev)
1195                 return -ENOMEM;
1196
1197         wistron_idev->flush = wistron_flush;
1198         wistron_idev->poll = wistron_poll;
1199         wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
1200
1201         input_dev = wistron_idev->input;
1202         input_dev->name = "Wistron laptop buttons";
1203         input_dev->phys = "wistron/input0";
1204         input_dev->id.bustype = BUS_HOST;
1205         input_dev->dev.parent = &wistron_device->dev;
1206
1207         input_dev->getkeycode = wistron_getkeycode;
1208         input_dev->setkeycode = wistron_setkeycode;
1209
1210         for (key = keymap; key->type != KE_END; key++) {
1211                 switch (key->type) {
1212                         case KE_KEY:
1213                                 set_bit(EV_KEY, input_dev->evbit);
1214                                 set_bit(key->keycode, input_dev->keybit);
1215                                 break;
1216
1217                         case KE_SW:
1218                                 set_bit(EV_SW, input_dev->evbit);
1219                                 set_bit(key->sw.code, input_dev->swbit);
1220                                 break;
1221
1222                         /* if wifi or bluetooth are not available, create normal keys */
1223                         case KE_WIFI:
1224                                 if (!have_wifi) {
1225                                         key->type = KE_KEY;
1226                                         key->keycode = KEY_WLAN;
1227                                         key--;
1228                                 }
1229                                 break;
1230
1231                         case KE_BLUETOOTH:
1232                                 if (!have_bluetooth) {
1233                                         key->type = KE_KEY;
1234                                         key->keycode = KEY_BLUETOOTH;
1235                                         key--;
1236                                 }
1237                                 break;
1238
1239                         default:
1240                                 break;
1241                 }
1242         }
1243
1244         /* reads information flags on KE_END */
1245         if (key->code & FE_UNTESTED)
1246                 printk(KERN_WARNING "Untested laptop multimedia keys, "
1247                         "please report success or failure to eric.piel"
1248                         "@tremplin-utc.net\n");
1249
1250         error = input_register_polled_device(wistron_idev);
1251         if (error) {
1252                 input_free_polled_device(wistron_idev);
1253                 return error;
1254         }
1255
1256         return 0;
1257 }
1258
1259 /* Driver core */
1260
1261 static int __devinit wistron_probe(struct platform_device *dev)
1262 {
1263         int err;
1264
1265         bios_attach();
1266         cmos_address = bios_get_cmos_address();
1267
1268         if (have_wifi) {
1269                 u16 wifi = bios_get_default_setting(WIFI);
1270                 if (wifi & 1)
1271                         wifi_enabled = (wifi & 2) ? 1 : 0;
1272                 else
1273                         have_wifi = 0;
1274
1275                 if (have_wifi)
1276                         bios_set_state(WIFI, wifi_enabled);
1277         }
1278
1279         if (have_bluetooth) {
1280                 u16 bt = bios_get_default_setting(BLUETOOTH);
1281                 if (bt & 1)
1282                         bluetooth_enabled = (bt & 2) ? 1 : 0;
1283                 else
1284                         have_bluetooth = 0;
1285
1286                 if (have_bluetooth)
1287                         bios_set_state(BLUETOOTH, bluetooth_enabled);
1288         }
1289
1290         wistron_led_init(&dev->dev);
1291         err = setup_input_dev();
1292         if (err) {
1293                 bios_detach();
1294                 return err;
1295         }
1296
1297         return 0;
1298 }
1299
1300 static int __devexit wistron_remove(struct platform_device *dev)
1301 {
1302         wistron_led_remove();
1303         input_unregister_polled_device(wistron_idev);
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 platform_device *dev, pm_message_t state)
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         return 0;
1321 }
1322
1323 static int wistron_resume(struct platform_device *dev)
1324 {
1325         if (have_wifi)
1326                 bios_set_state(WIFI, wifi_enabled);
1327
1328         if (have_bluetooth)
1329                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1330
1331         wistron_led_resume();
1332         poll_bios(true);
1333
1334         return 0;
1335 }
1336 #else
1337 #define wistron_suspend         NULL
1338 #define wistron_resume          NULL
1339 #endif
1340
1341 static struct platform_driver wistron_driver = {
1342         .driver         = {
1343                 .name   = "wistron-bios",
1344                 .owner  = THIS_MODULE,
1345         },
1346         .probe          = wistron_probe,
1347         .remove         = __devexit_p(wistron_remove),
1348         .suspend        = wistron_suspend,
1349         .resume         = wistron_resume,
1350 };
1351
1352 static int __init wb_module_init(void)
1353 {
1354         int err;
1355
1356         err = select_keymap();
1357         if (err)
1358                 return err;
1359
1360         err = map_bios();
1361         if (err)
1362                 return err;
1363
1364         err = platform_driver_register(&wistron_driver);
1365         if (err)
1366                 goto err_unmap_bios;
1367
1368         wistron_device = platform_device_alloc("wistron-bios", -1);
1369         if (!wistron_device) {
1370                 err = -ENOMEM;
1371                 goto err_unregister_driver;
1372         }
1373
1374         err = platform_device_add(wistron_device);
1375         if (err)
1376                 goto err_free_device;
1377
1378         return 0;
1379
1380  err_free_device:
1381         platform_device_put(wistron_device);
1382  err_unregister_driver:
1383         platform_driver_unregister(&wistron_driver);
1384  err_unmap_bios:
1385         unmap_bios();
1386
1387         return err;
1388 }
1389
1390 static void __exit wb_module_exit(void)
1391 {
1392         platform_device_unregister(wistron_device);
1393         platform_driver_unregister(&wistron_driver);
1394         unmap_bios();
1395         kfree(keymap);
1396 }
1397
1398 module_init(wb_module_init);
1399 module_exit(wb_module_exit);