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_fs_amilo_pro_v3505[] __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,       0 }
 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, FE_UNTESTED }
 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 /*
 615  * If your machine is not here (which is currently rather likely), please send
 616  * a list of buttons and their key codes (reported when loading this module
 617  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
 618  */
 619 static struct dmi_system_id dmi_ids[] __initdata = {
 620         {
 621                 .callback = dmi_matched,
 622                 .ident = "Fujitsu-Siemens Amilo Pro V2000",
 623                 .matches = {
 624                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 625                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
 626                 },
 627                 .driver_data = keymap_fs_amilo_pro_v2000
 628         },
 629         {
 630                 .callback = dmi_matched,
 631                 .ident = "Fujitsu-Siemens Amilo Pro Edition V3505",
 632                 .matches = {
 633                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 634                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
 635                 },
 636                 .driver_data = keymap_fs_amilo_pro_v3505
 637         },
 638         {
 639                 .callback = dmi_matched,
 640                 .ident = "Fujitsu-Siemens Amilo M7400",
 641                 .matches = {
 642                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 643                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M        "),
 644                 },
 645                 .driver_data = keymap_fs_amilo_pro_v2000
 646         },
 647         {
 648                 .callback = dmi_matched,
 649                 .ident = "Fujitsu N3510",
 650                 .matches = {
 651                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 652                         DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
 653                 },
 654                 .driver_data = keymap_fujitsu_n3510
 655         },
 656         {
 657                 .callback = dmi_matched,
 658                 .ident = "Acer Aspire 1500",
 659                 .matches = {
 660                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 661                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
 662                 },
 663                 .driver_data = keymap_acer_aspire_1500
 664         },
 665         {
 666                 .callback = dmi_matched,
 667                 .ident = "Acer Aspire 1600",
 668                 .matches = {
 669                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 670                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
 671                 },
 672                 .driver_data = keymap_acer_aspire_1600
 673         },
 674         {
 675                 .callback = dmi_matched,
 676                 .ident = "Acer Aspire 3020",
 677                 .matches = {
 678                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 679                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
 680                 },
 681                 .driver_data = keymap_acer_aspire_5020
 682         },
 683         {
 684                 .callback = dmi_matched,
 685                 .ident = "Acer Aspire 5020",
 686                 .matches = {
 687                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 688                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
 689                 },
 690                 .driver_data = keymap_acer_aspire_5020
 691         },
 692         {
 693                 .callback = dmi_matched,
 694                 .ident = "Acer TravelMate 2100",
 695                 .matches = {
 696                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 697                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
 698                 },
 699                 .driver_data = keymap_acer_aspire_5020
 700         },
 701         {
 702                 .callback = dmi_matched,
 703                 .ident = "Acer TravelMate 2410",
 704                 .matches = {
 705                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 706                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
 707                 },
 708                 .driver_data = keymap_acer_travelmate_2410
 709         },
 710         {
 711                 .callback = dmi_matched,
 712                 .ident = "Acer TravelMate C300",
 713                 .matches = {
 714                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 715                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
 716                 },
 717                 .driver_data = keymap_acer_travelmate_300
 718         },
 719         {
 720                 .callback = dmi_matched,
 721                 .ident = "Acer TravelMate C100",
 722                 .matches = {
 723                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 724                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
 725                 },
 726                 .driver_data = keymap_acer_travelmate_300
 727         },
 728         {
 729                 .callback = dmi_matched,
 730                 .ident = "Acer TravelMate C110",
 731                 .matches = {
 732                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 733                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
 734                 },
 735                 .driver_data = keymap_acer_travelmate_110
 736         },
 737         {
 738                 .callback = dmi_matched,
 739                 .ident = "Acer TravelMate 380",
 740                 .matches = {
 741                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 742                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
 743                 },
 744                 .driver_data = keymap_acer_travelmate_380
 745         },
 746         {
 747                 .callback = dmi_matched,
 748                 .ident = "Acer TravelMate 370",
 749                 .matches = {
 750                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 751                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
 752                 },
 753                 .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
 754         },
 755         {
 756                 .callback = dmi_matched,
 757                 .ident = "Acer TravelMate 220",
 758                 .matches = {
 759                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 760                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
 761                 },
 762                 .driver_data = keymap_acer_travelmate_220
 763         },
 764         {
 765                 .callback = dmi_matched,
 766                 .ident = "Acer TravelMate 260",
 767                 .matches = {
 768                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 769                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
 770                 },
 771                 .driver_data = keymap_acer_travelmate_220
 772         },
 773         {
 774                 .callback = dmi_matched,
 775                 .ident = "Acer TravelMate 230",
 776                 .matches = {
 777                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 778                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
 779                         /* acerhk looks for "TravelMate F4..." ?! */
 780                 },
 781                 .driver_data = keymap_acer_travelmate_230
 782         },
 783         {
 784                 .callback = dmi_matched,
 785                 .ident = "Acer TravelMate 280",
 786                 .matches = {
 787                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 788                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
 789                 },
 790                 .driver_data = keymap_acer_travelmate_230
 791         },
 792         {
 793                 .callback = dmi_matched,
 794                 .ident = "Acer TravelMate 240",
 795                 .matches = {
 796                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 797                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
 798                 },
 799                 .driver_data = keymap_acer_travelmate_240
 800         },
 801         {
 802                 .callback = dmi_matched,
 803                 .ident = "Acer TravelMate 250",
 804                 .matches = {
 805                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 806                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
 807                 },
 808                 .driver_data = keymap_acer_travelmate_240
 809         },
 810         {
 811                 .callback = dmi_matched,
 812                 .ident = "Acer TravelMate 2424NWXCi",
 813                 .matches = {
 814                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 815                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
 816                 },
 817                 .driver_data = keymap_acer_travelmate_240
 818         },
 819         {
 820                 .callback = dmi_matched,
 821                 .ident = "Acer TravelMate 350",
 822                 .matches = {
 823                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 824                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
 825                 },
 826                 .driver_data = keymap_acer_travelmate_350
 827         },
 828         {
 829                 .callback = dmi_matched,
 830                 .ident = "Acer TravelMate 360",
 831                 .matches = {
 832                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 833                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
 834                 },
 835                 .driver_data = keymap_acer_travelmate_360
 836         },
 837         {
 838                 .callback = dmi_matched,
 839                 .ident = "Acer TravelMate 610",
 840                 .matches = {
 841                         DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
 842                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
 843                 },
 844                 .driver_data = keymap_acer_travelmate_610
 845         },
 846         {
 847                 .callback = dmi_matched,
 848                 .ident = "Acer TravelMate 620",
 849                 .matches = {
 850                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 851                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
 852                 },
 853                 .driver_data = keymap_acer_travelmate_630
 854         },
 855         {
 856                 .callback = dmi_matched,
 857                 .ident = "Acer TravelMate 630",
 858                 .matches = {
 859                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 860                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
 861                 },
 862                 .driver_data = keymap_acer_travelmate_630
 863         },
 864         {
 865                 .callback = dmi_matched,
 866                 .ident = "AOpen 1559AS",
 867                 .matches = {
 868                         DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
 869                         DMI_MATCH(DMI_BOARD_NAME, "E2U"),
 870                 },
 871                 .driver_data = keymap_aopen_1559as
 872         },
 873         {
 874                 .callback = dmi_matched,
 875                 .ident = "Medion MD 9783",
 876                 .matches = {
 877                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 878                         DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
 879                 },
 880                 .driver_data = keymap_wistron_ms2111
 881         },
 882         {
 883                 .callback = dmi_matched,
 884                 .ident = "Medion MD 40100",
 885                 .matches = {
 886                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 887                         DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
 888                 },
 889                 .driver_data = keymap_wistron_md40100
 890         },
 891         {
 892                 .callback = dmi_matched,
 893                 .ident = "Medion MD 2900",
 894                 .matches = {
 895                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
 896                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
 897                 },
 898                 .driver_data = keymap_wistron_md2900
 899         },
 900         {
 901                 .callback = dmi_matched,
 902                 .ident = "Medion MD 96500",
 903                 .matches = {
 904                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 905                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
 906                 },
 907                 .driver_data = keymap_wistron_md96500
 908         },
 909         {
 910                 .callback = dmi_matched,
 911                 .ident = "Medion MD 95400",
 912                 .matches = {
 913                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
 914                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
 915                 },
 916                 .driver_data = keymap_wistron_md96500
 917         },
 918         {
 919                 .callback = dmi_matched,
 920                 .ident = "Fujitsu Siemens Amilo D7820",
 921                 .matches = {
 922                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
 923                         DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
 924                 },
 925                 .driver_data = keymap_fs_amilo_d88x0
 926         },
 927         {
 928                 .callback = dmi_matched,
 929                 .ident = "Fujitsu Siemens Amilo D88x0",
 930                 .matches = {
 931                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 932                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
 933                 },
 934                 .driver_data = keymap_fs_amilo_d88x0
 935         },
 936         { NULL, }
 937 };
 938
 939 /* Copy the good keymap, as the original ones are free'd */
 940 static int __init copy_keymap(void)
 941 {
 942         const struct key_entry *key;
 943         struct key_entry *new_keymap;
 944         unsigned int length = 1;
 945
 946         for (key = keymap; key->type != KE_END; key++)
 947                 length++;
 948
 949         new_keymap = kmalloc(length * sizeof(struct key_entry), GFP_KERNEL);
 950         if (!new_keymap)
 951                 return -ENOMEM;
 952
 953         memcpy(new_keymap, keymap, length * sizeof(struct key_entry));
 954         keymap = new_keymap;
 955
 956         return 0;
 957 }
 958
 959 static int __init select_keymap(void)
 960 {
 961         dmi_check_system(dmi_ids);
 962         if (keymap_name != NULL) {
 963                 if (strcmp (keymap_name, "1557/MS2141") == 0)
 964                         keymap = keymap_wistron_ms2141;
 965                 else if (strcmp (keymap_name, "generic") == 0)
 966                         keymap = keymap_wistron_generic;
 967                 else {
 968                         printk(KERN_ERR "wistron_btns: Keymap unknown\n");
 969                         return -EINVAL;
 970                 }
 971         }
 972         if (keymap == NULL) {
 973                 if (!force) {
 974                         printk(KERN_ERR "wistron_btns: System unknown\n");
 975                         return -ENODEV;
 976                 }
 977                 keymap = keymap_empty;
 978         }
 979
 980         return copy_keymap();
 981 }
 982
 983  /* Input layer interface */
 984
 985 static struct input_polled_dev *wistron_idev;
 986 static unsigned long jiffies_last_press;
 987 static int wifi_enabled;
 988 static int bluetooth_enabled;
 989
 990 static void report_key(struct input_dev *dev, unsigned int keycode)
 991 {
 992         input_report_key(dev, keycode, 1);
 993         input_sync(dev);
 994         input_report_key(dev, keycode, 0);
 995         input_sync(dev);
 996 }
 997
 998 static void report_switch(struct input_dev *dev, unsigned int code, int value)
 999 {
1000         input_report_switch(dev, code, value);
1001         input_sync(dev);
1002 }
1003
1004
1005  /* led management */
1006 static void wistron_mail_led_set(struct led_classdev *led_cdev,
1007                                 enum led_brightness value)
1008 {
1009         bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
1010 }
1011
1012 /* same as setting up wifi card, but for laptops on which the led is managed */
1013 static void wistron_wifi_led_set(struct led_classdev *led_cdev,
1014                                 enum led_brightness value)
1015 {
1016         bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
1017 }
1018
1019 static struct led_classdev wistron_mail_led = {
1020         .name                   = "wistron:green:mail",
1021         .brightness_set         = wistron_mail_led_set,
1022 };
1023
1024 static struct led_classdev wistron_wifi_led = {
1025         .name                   = "wistron:red:wifi",
1026         .brightness_set         = wistron_wifi_led_set,
1027 };
1028
1029 static void __devinit wistron_led_init(struct device *parent)
1030 {
1031         if (have_leds & FE_WIFI_LED) {
1032                 u16 wifi = bios_get_default_setting(WIFI);
1033                 if (wifi & 1) {
1034                         wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
1035                         if (led_classdev_register(parent, &wistron_wifi_led))
1036                                 have_leds &= ~FE_WIFI_LED;
1037                         else
1038                                 bios_set_state(WIFI, wistron_wifi_led.brightness);
1039
1040                 } else
1041                         have_leds &= ~FE_WIFI_LED;
1042         }
1043
1044         if (have_leds & FE_MAIL_LED) {
1045                 /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
1046                 wistron_mail_led.brightness = LED_OFF;
1047                 if (led_classdev_register(parent, &wistron_mail_led))
1048                         have_leds &= ~FE_MAIL_LED;
1049                 else
1050                         bios_set_state(MAIL_LED, wistron_mail_led.brightness);
1051         }
1052 }
1053
1054 static void __devexit wistron_led_remove(void)
1055 {
1056         if (have_leds & FE_MAIL_LED)
1057                 led_classdev_unregister(&wistron_mail_led);
1058
1059         if (have_leds & FE_WIFI_LED)
1060                 led_classdev_unregister(&wistron_wifi_led);
1061 }
1062
1063 static inline void wistron_led_suspend(void)
1064 {
1065         if (have_leds & FE_MAIL_LED)
1066                 led_classdev_suspend(&wistron_mail_led);
1067
1068         if (have_leds & FE_WIFI_LED)
1069                 led_classdev_suspend(&wistron_wifi_led);
1070 }
1071
1072 static inline void wistron_led_resume(void)
1073 {
1074         if (have_leds & FE_MAIL_LED)
1075                 led_classdev_resume(&wistron_mail_led);
1076
1077         if (have_leds & FE_WIFI_LED)
1078                 led_classdev_resume(&wistron_wifi_led);
1079 }
1080
1081 static struct key_entry *wistron_get_entry_by_scancode(int code)
1082 {
1083         struct key_entry *key;
1084
1085         for (key = keymap; key->type != KE_END; key++)
1086                 if (code == key->code)
1087                         return key;
1088
1089         return NULL;
1090 }
1091
1092 static struct key_entry *wistron_get_entry_by_keycode(int keycode)
1093 {
1094         struct key_entry *key;
1095
1096         for (key = keymap; key->type != KE_END; key++)
1097                 if (key->type == KE_KEY && keycode == key->keycode)
1098                         return key;
1099
1100         return NULL;
1101 }
1102
1103 static void handle_key(u8 code)
1104 {
1105         const struct key_entry *key = wistron_get_entry_by_scancode(code);
1106
1107         if (key) {
1108                 switch (key->type) {
1109                 case KE_KEY:
1110                         report_key(wistron_idev->input, key->keycode);
1111                         break;
1112
1113                 case KE_SW:
1114                         report_switch(wistron_idev->input,
1115                                       key->sw.code, key->sw.value);
1116                         break;
1117
1118                 case KE_WIFI:
1119                         if (have_wifi) {
1120                                 wifi_enabled = !wifi_enabled;
1121                                 bios_set_state(WIFI, wifi_enabled);
1122                         }
1123                         break;
1124
1125                 case KE_BLUETOOTH:
1126                         if (have_bluetooth) {
1127                                 bluetooth_enabled = !bluetooth_enabled;
1128                                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1129                         }
1130                         break;
1131
1132                 default:
1133                         BUG();
1134                 }
1135                 jiffies_last_press = jiffies;
1136         } else
1137                 printk(KERN_NOTICE
1138                         "wistron_btns: Unknown key code %02X\n", code);
1139 }
1140
1141 static void poll_bios(bool discard)
1142 {
1143         u8 qlen;
1144         u16 val;
1145
1146         for (;;) {
1147                 qlen = CMOS_READ(cmos_address);
1148                 if (qlen == 0)
1149                         break;
1150                 val = bios_pop_queue();
1151                 if (val != 0 && !discard)
1152                         handle_key((u8)val);
1153         }
1154 }
1155
1156 static void wistron_flush(struct input_polled_dev *dev)
1157 {
1158         /* Flush stale event queue */
1159         poll_bios(true);
1160 }
1161
1162 static void wistron_poll(struct input_polled_dev *dev)
1163 {
1164         poll_bios(false);
1165
1166         /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
1167         if (time_before(jiffies, jiffies_last_press + 2 * HZ))
1168                 dev->poll_interval = POLL_INTERVAL_BURST;
1169         else
1170                 dev->poll_interval = POLL_INTERVAL_DEFAULT;
1171 }
1172
1173 static int wistron_getkeycode(struct input_dev *dev, int scancode, int *keycode)
1174 {
1175         const struct key_entry *key = wistron_get_entry_by_scancode(scancode);
1176
1177         if (key && key->type == KE_KEY) {
1178                 *keycode = key->keycode;
1179                 return 0;
1180         }
1181
1182         return -EINVAL;
1183 }
1184
1185 static int wistron_setkeycode(struct input_dev *dev, int scancode, int keycode)
1186 {
1187         struct key_entry *key;
1188         int old_keycode;
1189
1190         if (keycode < 0 || keycode > KEY_MAX)
1191                 return -EINVAL;
1192
1193         key = wistron_get_entry_by_scancode(scancode);
1194         if (key && key->type == KE_KEY) {
1195                 old_keycode = key->keycode;
1196                 key->keycode = keycode;
1197                 set_bit(keycode, dev->keybit);
1198                 if (!wistron_get_entry_by_keycode(old_keycode))
1199                         clear_bit(old_keycode, dev->keybit);
1200                 return 0;
1201         }
1202
1203         return -EINVAL;
1204 }
1205
1206 static int __devinit setup_input_dev(void)
1207 {
1208         struct key_entry *key;
1209         struct input_dev *input_dev;
1210         int error;
1211
1212         wistron_idev = input_allocate_polled_device();
1213         if (!wistron_idev)
1214                 return -ENOMEM;
1215
1216         wistron_idev->flush = wistron_flush;
1217         wistron_idev->poll = wistron_poll;
1218         wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
1219
1220         input_dev = wistron_idev->input;
1221         input_dev->name = "Wistron laptop buttons";
1222         input_dev->phys = "wistron/input0";
1223         input_dev->id.bustype = BUS_HOST;
1224         input_dev->dev.parent = &wistron_device->dev;
1225
1226         input_dev->getkeycode = wistron_getkeycode;
1227         input_dev->setkeycode = wistron_setkeycode;
1228
1229         for (key = keymap; key->type != KE_END; key++) {
1230                 switch (key->type) {
1231                         case KE_KEY:
1232                                 set_bit(EV_KEY, input_dev->evbit);
1233                                 set_bit(key->keycode, input_dev->keybit);
1234                                 break;
1235
1236                         case KE_SW:
1237                                 set_bit(EV_SW, input_dev->evbit);
1238                                 set_bit(key->sw.code, input_dev->swbit);
1239                                 break;
1240
1241                         /* if wifi or bluetooth are not available, create normal keys */
1242                         case KE_WIFI:
1243                                 if (!have_wifi) {
1244                                         key->type = KE_KEY;
1245                                         key->keycode = KEY_WLAN;
1246                                         key--;
1247                                 }
1248                                 break;
1249
1250                         case KE_BLUETOOTH:
1251                                 if (!have_bluetooth) {
1252                                         key->type = KE_KEY;
1253                                         key->keycode = KEY_BLUETOOTH;
1254                                         key--;
1255                                 }
1256                                 break;
1257
1258                         default:
1259                                 break;
1260                 }
1261         }
1262
1263         /* reads information flags on KE_END */
1264         if (key->code & FE_UNTESTED)
1265                 printk(KERN_WARNING "Untested laptop multimedia keys, "
1266                         "please report success or failure to eric.piel"
1267                         "@tremplin-utc.net\n");
1268
1269         error = input_register_polled_device(wistron_idev);
1270         if (error) {
1271                 input_free_polled_device(wistron_idev);
1272                 return error;
1273         }
1274
1275         return 0;
1276 }
1277
1278 /* Driver core */
1279
1280 static int __devinit wistron_probe(struct platform_device *dev)
1281 {
1282         int err;
1283
1284         bios_attach();
1285         cmos_address = bios_get_cmos_address();
1286
1287         if (have_wifi) {
1288                 u16 wifi = bios_get_default_setting(WIFI);
1289                 if (wifi & 1)
1290                         wifi_enabled = (wifi & 2) ? 1 : 0;
1291                 else
1292                         have_wifi = 0;
1293
1294                 if (have_wifi)
1295                         bios_set_state(WIFI, wifi_enabled);
1296         }
1297
1298         if (have_bluetooth) {
1299                 u16 bt = bios_get_default_setting(BLUETOOTH);
1300                 if (bt & 1)
1301                         bluetooth_enabled = (bt & 2) ? 1 : 0;
1302                 else
1303                         have_bluetooth = 0;
1304
1305                 if (have_bluetooth)
1306                         bios_set_state(BLUETOOTH, bluetooth_enabled);
1307         }
1308
1309         wistron_led_init(&dev->dev);
1310         err = setup_input_dev();
1311         if (err) {
1312                 bios_detach();
1313                 return err;
1314         }
1315
1316         return 0;
1317 }
1318
1319 static int __devexit wistron_remove(struct platform_device *dev)
1320 {
1321         wistron_led_remove();
1322         input_unregister_polled_device(wistron_idev);
1323         input_free_polled_device(wistron_idev);
1324         bios_detach();
1325
1326         return 0;
1327 }
1328
1329 #ifdef CONFIG_PM
1330 static int wistron_suspend(struct platform_device *dev, pm_message_t state)
1331 {
1332         if (have_wifi)
1333                 bios_set_state(WIFI, 0);
1334
1335         if (have_bluetooth)
1336                 bios_set_state(BLUETOOTH, 0);
1337
1338         wistron_led_suspend();
1339         return 0;
1340 }
1341
1342 static int wistron_resume(struct platform_device *dev)
1343 {
1344         if (have_wifi)
1345                 bios_set_state(WIFI, wifi_enabled);
1346
1347         if (have_bluetooth)
1348                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1349
1350         wistron_led_resume();
1351         poll_bios(true);
1352
1353         return 0;
1354 }
1355 #else
1356 #define wistron_suspend         NULL
1357 #define wistron_resume          NULL
1358 #endif
1359
1360 static struct platform_driver wistron_driver = {
1361         .driver         = {
1362                 .name   = "wistron-bios",
1363                 .owner  = THIS_MODULE,
1364         },
1365         .probe          = wistron_probe,
1366         .remove         = __devexit_p(wistron_remove),
1367         .suspend        = wistron_suspend,
1368         .resume         = wistron_resume,
1369 };
1370
1371 static int __init wb_module_init(void)
1372 {
1373         int err;
1374
1375         err = select_keymap();
1376         if (err)
1377                 return err;
1378
1379         err = map_bios();
1380         if (err)
1381                 return err;
1382
1383         err = platform_driver_register(&wistron_driver);
1384         if (err)
1385                 goto err_unmap_bios;
1386
1387         wistron_device = platform_device_alloc("wistron-bios", -1);
1388         if (!wistron_device) {
1389                 err = -ENOMEM;
1390                 goto err_unregister_driver;
1391         }
1392
1393         err = platform_device_add(wistron_device);
1394         if (err)
1395                 goto err_free_device;
1396
1397         return 0;
1398
1399  err_free_device:
1400         platform_device_put(wistron_device);
1401  err_unregister_driver:
1402         platform_driver_unregister(&wistron_driver);
1403  err_unmap_bios:
1404         unmap_bios();
1405
1406         return err;
1407 }
1408
1409 static void __exit wb_module_exit(void)
1410 {
1411         platform_device_unregister(wistron_device);
1412         platform_driver_unregister(&wistron_driver);
1413         unmap_bios();
1414         kfree(keymap);
1415 }
1416
1417 module_init(wb_module_init);
1418 module_exit(wb_module_exit);