drivers/platform/x86/asus-nb-wmi.c

   1 /*
   2  * Asus Notebooks WMI hotkey driver
   3  *
   4  * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  22
  23 #include <linux/kernel.h>
  24 #include <linux/module.h>
  25 #include <linux/init.h>
  26 #include <linux/input.h>
  27 #include <linux/input/sparse-keymap.h>
  28 #include <linux/fb.h>
  29 #include <linux/dmi.h>
  30
  31 #include "asus-wmi.h"
  32
  33 #define ASUS_NB_WMI_FILE        "asus-nb-wmi"
  34
  35 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
  36 MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
  37 MODULE_LICENSE("GPL");
  38
  39 #define ASUS_NB_WMI_EVENT_GUID  "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
  40
  41 MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);
  42
  43 /*
  44  * WAPF defines the behavior of the Fn+Fx wlan key
  45  * The significance of values is yet to be found, but
  46  * most of the time:
  47  * Bit | Bluetooth | WLAN
  48  *  0  | Hardware  | Hardware
  49  *  1  | Hardware  | Software
  50  *  4  | Software  | Software
  51  */
  52 static int wapf = -1;
  53 module_param(wapf, uint, 0444);
  54 MODULE_PARM_DESC(wapf, "WAPF value");
  55
  56 static struct quirk_entry *quirks;
  57
  58 static struct quirk_entry quirk_asus_unknown = {
  59         .wapf = 0,
  60 };
  61
  62 /*
  63  * For those machines that need software to control bt/wifi status
  64  * and can't adjust brightness through ACPI interface
  65  * and have duplicate events(ACPI and WMI) for display toggle
  66  */
  67 static struct quirk_entry quirk_asus_x55u = {
  68         .wapf = 4,
  69         .wmi_backlight_power = true,
  70         .no_display_toggle = true,
  71 };
  72
  73 static struct quirk_entry quirk_asus_wapf4 = {
  74         .wapf = 4,
  75 };
  76
  77 static struct quirk_entry quirk_asus_x200ca = {
  78         .wapf = 2,
  79 };
  80
  81 static int dmi_matched(const struct dmi_system_id *dmi)
  82 {
  83         quirks = dmi->driver_data;
  84         return 1;
  85 }
  86
  87 static const struct dmi_system_id asus_quirks[] = {
  88         {
  89                 .callback = dmi_matched,
  90                 .ident = "ASUSTeK COMPUTER INC. U32U",
  91                 .matches = {
  92                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
  93                         DMI_MATCH(DMI_PRODUCT_NAME, "U32U"),
  94                 },
  95                 /*
  96                  * Note this machine has a Brazos APU, and most Brazos Asus
  97                  * machines need quirk_asus_x55u / wmi_backlight_power but
  98                  * here acpi-video seems to work fine for backlight control.
  99                  */
 100                 .driver_data = &quirk_asus_wapf4,
 101         },
 102         {
 103                 .callback = dmi_matched,
 104                 .ident = "ASUSTeK COMPUTER INC. X401U",
 105                 .matches = {
 106                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 107                         DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
 108                 },
 109                 .driver_data = &quirk_asus_x55u,
 110         },
 111         {
 112                 .callback = dmi_matched,
 113                 .ident = "ASUSTeK COMPUTER INC. X401A",
 114                 .matches = {
 115                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 116                         DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
 117                 },
 118                 .driver_data = &quirk_asus_wapf4,
 119         },
 120         {
 121                 .callback = dmi_matched,
 122                 .ident = "ASUSTeK COMPUTER INC. X401A1",
 123                 .matches = {
 124                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 125                         DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
 126                 },
 127                 .driver_data = &quirk_asus_wapf4,
 128         },
 129         {
 130                 .callback = dmi_matched,
 131                 .ident = "ASUSTeK COMPUTER INC. X456UA",
 132                 .matches = {
 133                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 134                         DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"),
 135                 },
 136                 .driver_data = &quirk_asus_wapf4,
 137         },
 138         {
 139                 .callback = dmi_matched,
 140                 .ident = "ASUSTeK COMPUTER INC. X456UF",
 141                 .matches = {
 142                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 143                         DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"),
 144                 },
 145                 .driver_data = &quirk_asus_wapf4,
 146         },
 147         {
 148                 .callback = dmi_matched,
 149                 .ident = "ASUSTeK COMPUTER INC. X501U",
 150                 .matches = {
 151                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 152                         DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
 153                 },
 154                 .driver_data = &quirk_asus_x55u,
 155         },
 156         {
 157                 .callback = dmi_matched,
 158                 .ident = "ASUSTeK COMPUTER INC. X501A",
 159                 .matches = {
 160                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 161                         DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
 162                 },
 163                 .driver_data = &quirk_asus_wapf4,
 164         },
 165         {
 166                 .callback = dmi_matched,
 167                 .ident = "ASUSTeK COMPUTER INC. X501A1",
 168                 .matches = {
 169                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 170                         DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
 171                 },
 172                 .driver_data = &quirk_asus_wapf4,
 173         },
 174         {
 175                 .callback = dmi_matched,
 176                 .ident = "ASUSTeK COMPUTER INC. X550CA",
 177                 .matches = {
 178                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 179                         DMI_MATCH(DMI_PRODUCT_NAME, "X550CA"),
 180                 },
 181                 .driver_data = &quirk_asus_wapf4,
 182         },
 183         {
 184                 .callback = dmi_matched,
 185                 .ident = "ASUSTeK COMPUTER INC. X550CC",
 186                 .matches = {
 187                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 188                         DMI_MATCH(DMI_PRODUCT_NAME, "X550CC"),
 189                 },
 190                 .driver_data = &quirk_asus_wapf4,
 191         },
 192         {
 193                 .callback = dmi_matched,
 194                 .ident = "ASUSTeK COMPUTER INC. X550CL",
 195                 .matches = {
 196                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 197                         DMI_MATCH(DMI_PRODUCT_NAME, "X550CL"),
 198                 },
 199                 .driver_data = &quirk_asus_wapf4,
 200         },
 201         {
 202                 .callback = dmi_matched,
 203                 .ident = "ASUSTeK COMPUTER INC. X550VB",
 204                 .matches = {
 205                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 206                         DMI_MATCH(DMI_PRODUCT_NAME, "X550VB"),
 207                 },
 208                 .driver_data = &quirk_asus_wapf4,
 209         },
 210         {
 211                 .callback = dmi_matched,
 212                 .ident = "ASUSTeK COMPUTER INC. X551CA",
 213                 .matches = {
 214                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 215                         DMI_MATCH(DMI_PRODUCT_NAME, "X551CA"),
 216                 },
 217                 .driver_data = &quirk_asus_wapf4,
 218         },
 219         {
 220                 .callback = dmi_matched,
 221                 .ident = "ASUSTeK COMPUTER INC. X55A",
 222                 .matches = {
 223                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 224                         DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
 225                 },
 226                 .driver_data = &quirk_asus_wapf4,
 227         },
 228         {
 229                 .callback = dmi_matched,
 230                 .ident = "ASUSTeK COMPUTER INC. X55C",
 231                 .matches = {
 232                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 233                         DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
 234                 },
 235                 .driver_data = &quirk_asus_wapf4,
 236         },
 237         {
 238                 .callback = dmi_matched,
 239                 .ident = "ASUSTeK COMPUTER INC. X55U",
 240                 .matches = {
 241                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 242                         DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
 243                 },
 244                 .driver_data = &quirk_asus_x55u,
 245         },
 246         {
 247                 .callback = dmi_matched,
 248                 .ident = "ASUSTeK COMPUTER INC. X55VD",
 249                 .matches = {
 250                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 251                         DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
 252                 },
 253                 .driver_data = &quirk_asus_wapf4,
 254         },
 255         {
 256                 .callback = dmi_matched,
 257                 .ident = "ASUSTeK COMPUTER INC. X75A",
 258                 .matches = {
 259                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 260                         DMI_MATCH(DMI_PRODUCT_NAME, "X75A"),
 261                 },
 262                 .driver_data = &quirk_asus_wapf4,
 263         },
 264         {
 265                 .callback = dmi_matched,
 266                 .ident = "ASUSTeK COMPUTER INC. X75VBP",
 267                 .matches = {
 268                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 269                         DMI_MATCH(DMI_PRODUCT_NAME, "X75VBP"),
 270                 },
 271                 .driver_data = &quirk_asus_wapf4,
 272         },
 273         {
 274                 .callback = dmi_matched,
 275                 .ident = "ASUSTeK COMPUTER INC. 1015E",
 276                 .matches = {
 277                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 278                         DMI_MATCH(DMI_PRODUCT_NAME, "1015E"),
 279                 },
 280                 .driver_data = &quirk_asus_wapf4,
 281         },
 282         {
 283                 .callback = dmi_matched,
 284                 .ident = "ASUSTeK COMPUTER INC. 1015U",
 285                 .matches = {
 286                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 287                         DMI_MATCH(DMI_PRODUCT_NAME, "1015U"),
 288                 },
 289                 .driver_data = &quirk_asus_wapf4,
 290         },
 291         {
 292                 .callback = dmi_matched,
 293                 .ident = "ASUSTeK COMPUTER INC. X200CA",
 294                 .matches = {
 295                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 296                         DMI_MATCH(DMI_PRODUCT_NAME, "X200CA"),
 297                 },
 298                 .driver_data = &quirk_asus_x200ca,
 299         },
 300         {},
 301 };
 302
 303 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
 304 {
 305         quirks = &quirk_asus_unknown;
 306         dmi_check_system(asus_quirks);
 307
 308         driver->quirks = quirks;
 309         driver->panel_power = FB_BLANK_UNBLANK;
 310
 311         /* overwrite the wapf setting if the wapf paramater is specified */
 312         if (wapf != -1)
 313                 quirks->wapf = wapf;
 314         else
 315                 wapf = quirks->wapf;
 316 }
 317
 318 static const struct key_entry asus_nb_wmi_keymap[] = {
 319         { KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
 320         { KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
 321         { KE_KEY, 0x30, { KEY_VOLUMEUP } },
 322         { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 323         { KE_KEY, 0x32, { KEY_MUTE } },
 324         { KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
 325         { KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 326         { KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 327         { KE_KEY, 0x41, { KEY_NEXTSONG } },
 328         { KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 329         { KE_KEY, 0x45, { KEY_PLAYPAUSE } },
 330         { KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 331         { KE_KEY, 0x50, { KEY_EMAIL } },
 332         { KE_KEY, 0x51, { KEY_WWW } },
 333         { KE_KEY, 0x55, { KEY_CALC } },
 334         { KE_IGNORE, 0x57, },  /* Battery mode */
 335         { KE_IGNORE, 0x58, },  /* AC mode */
 336         { KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
 337         { KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
 338         { KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
 339         { KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
 340         { KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
 341         { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
 342         { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
 343         { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
 344         { KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
 345         { KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
 346         { KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
 347         { KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
 348         { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
 349         { KE_IGNORE, 0x6E, },  /* Low Battery notification */
 350         { KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
 351         { KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 352         { KE_KEY, 0x82, { KEY_CAMERA } },
 353         { KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
 354         { KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
 355         { KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
 356         { KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
 357         { KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
 358         { KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
 359         { KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
 360         { KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
 361         { KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
 362         { KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
 363         { KE_KEY, 0x95, { KEY_MEDIA } },
 364         { KE_KEY, 0x99, { KEY_PHONE } },
 365         { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
 366         { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
 367         { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
 368         { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
 369         { KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
 370         { KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
 371         { KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
 372         { KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
 373         { KE_KEY, 0xB5, { KEY_CALC } },
 374         { KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 375         { KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 376         { KE_IGNORE, 0xC6, },  /* Ambient Light Sensor notification */
 377         { KE_END, 0},
 378 };
 379
 380 static struct asus_wmi_driver asus_nb_wmi_driver = {
 381         .name = ASUS_NB_WMI_FILE,
 382         .owner = THIS_MODULE,
 383         .event_guid = ASUS_NB_WMI_EVENT_GUID,
 384         .keymap = asus_nb_wmi_keymap,
 385         .input_name = "Asus WMI hotkeys",
 386         .input_phys = ASUS_NB_WMI_FILE "/input0",
 387         .detect_quirks = asus_nb_wmi_quirks,
 388 };
 389
 390
 391 static int __init asus_nb_wmi_init(void)
 392 {
 393         return asus_wmi_register_driver(&asus_nb_wmi_driver);
 394 }
 395
 396 static void __exit asus_nb_wmi_exit(void)
 397 {
 398         asus_wmi_unregister_driver(&asus_nb_wmi_driver);
 399 }
 400
 401 module_init(asus_nb_wmi_init);
 402 module_exit(asus_nb_wmi_exit);