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_x401u = {
  74         .wapf = 4,
  75 };
  76
  77 static int dmi_matched(const struct dmi_system_id *dmi)
  78 {
  79         quirks = dmi->driver_data;
  80         return 1;
  81 }
  82
  83 static struct dmi_system_id asus_quirks[] = {
  84         {
  85                 .callback = dmi_matched,
  86                 .ident = "ASUSTeK COMPUTER INC. X401U",
  87                 .matches = {
  88                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
  89                         DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
  90                 },
  91                 .driver_data = &quirk_asus_x55u,
  92         },
  93         {
  94                 .callback = dmi_matched,
  95                 .ident = "ASUSTeK COMPUTER INC. X401A",
  96                 .matches = {
  97                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
  98                         DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
  99                 },
 100                 .driver_data = &quirk_asus_x401u,
 101         },
 102         {
 103                 .callback = dmi_matched,
 104                 .ident = "ASUSTeK COMPUTER INC. X401A1",
 105                 .matches = {
 106                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 107                         DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
 108                 },
 109                 .driver_data = &quirk_asus_x401u,
 110         },
 111         {
 112                 .callback = dmi_matched,
 113                 .ident = "ASUSTeK COMPUTER INC. X501U",
 114                 .matches = {
 115                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 116                         DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
 117                 },
 118                 .driver_data = &quirk_asus_x55u,
 119         },
 120         {
 121                 .callback = dmi_matched,
 122                 .ident = "ASUSTeK COMPUTER INC. X501A",
 123                 .matches = {
 124                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 125                         DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
 126                 },
 127                 .driver_data = &quirk_asus_x401u,
 128         },
 129         {
 130                 .callback = dmi_matched,
 131                 .ident = "ASUSTeK COMPUTER INC. X501A1",
 132                 .matches = {
 133                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 134                         DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
 135                 },
 136                 .driver_data = &quirk_asus_x401u,
 137         },
 138         {
 139                 .callback = dmi_matched,
 140                 .ident = "ASUSTeK COMPUTER INC. X55A",
 141                 .matches = {
 142                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 143                         DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
 144                 },
 145                 .driver_data = &quirk_asus_x401u,
 146         },
 147         {
 148                 .callback = dmi_matched,
 149                 .ident = "ASUSTeK COMPUTER INC. X55C",
 150                 .matches = {
 151                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 152                         DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
 153                 },
 154                 .driver_data = &quirk_asus_x401u,
 155         },
 156         {
 157                 .callback = dmi_matched,
 158                 .ident = "ASUSTeK COMPUTER INC. X55U",
 159                 .matches = {
 160                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 161                         DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
 162                 },
 163                 .driver_data = &quirk_asus_x55u,
 164         },
 165         {
 166                 .callback = dmi_matched,
 167                 .ident = "ASUSTeK COMPUTER INC. X55VD",
 168                 .matches = {
 169                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 170                         DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
 171                 },
 172                 .driver_data = &quirk_asus_x401u,
 173         },
 174         {},
 175 };
 176
 177 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
 178 {
 179         quirks = &quirk_asus_unknown;
 180         dmi_check_system(asus_quirks);
 181
 182         driver->quirks = quirks;
 183         driver->panel_power = FB_BLANK_UNBLANK;
 184
 185         /* overwrite the wapf setting if the wapf paramater is specified */
 186         if (wapf != -1)
 187                 quirks->wapf = wapf;
 188         else
 189                 wapf = quirks->wapf;
 190 }
 191
 192 static const struct key_entry asus_nb_wmi_keymap[] = {
 193         { KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
 194         { KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
 195         { KE_KEY, 0x30, { KEY_VOLUMEUP } },
 196         { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 197         { KE_KEY, 0x32, { KEY_MUTE } },
 198         { KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
 199         { KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 200         { KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 201         { KE_KEY, 0x41, { KEY_NEXTSONG } },
 202         { KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 203         { KE_KEY, 0x45, { KEY_PLAYPAUSE } },
 204         { KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 205         { KE_KEY, 0x50, { KEY_EMAIL } },
 206         { KE_KEY, 0x51, { KEY_WWW } },
 207         { KE_KEY, 0x55, { KEY_CALC } },
 208         { KE_IGNORE, 0x57, },  /* Battery mode */
 209         { KE_IGNORE, 0x58, },  /* AC mode */
 210         { KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
 211         { KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
 212         { KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
 213         { KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
 214         { KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
 215         { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
 216         { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
 217         { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
 218         { KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
 219         { KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
 220         { KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
 221         { KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
 222         { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
 223         { KE_IGNORE, 0x6E, },  /* Low Battery notification */
 224         { KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
 225         { KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 226         { KE_KEY, 0x82, { KEY_CAMERA } },
 227         { KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
 228         { KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
 229         { KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
 230         { KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
 231         { KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
 232         { KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
 233         { KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
 234         { KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
 235         { KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
 236         { KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
 237         { KE_KEY, 0x95, { KEY_MEDIA } },
 238         { KE_KEY, 0x99, { KEY_PHONE } },
 239         { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
 240         { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
 241         { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
 242         { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
 243         { KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
 244         { KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
 245         { KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
 246         { KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
 247         { KE_KEY, 0xB5, { KEY_CALC } },
 248         { KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 249         { KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 250         { KE_END, 0},
 251 };
 252
 253 static struct asus_wmi_driver asus_nb_wmi_driver = {
 254         .name = ASUS_NB_WMI_FILE,
 255         .owner = THIS_MODULE,
 256         .event_guid = ASUS_NB_WMI_EVENT_GUID,
 257         .keymap = asus_nb_wmi_keymap,
 258         .input_name = "Asus WMI hotkeys",
 259         .input_phys = ASUS_NB_WMI_FILE "/input0",
 260         .detect_quirks = asus_nb_wmi_quirks,
 261 };
 262
 263
 264 static int __init asus_nb_wmi_init(void)
 265 {
 266         return asus_wmi_register_driver(&asus_nb_wmi_driver);
 267 }
 268
 269 static void __exit asus_nb_wmi_exit(void)
 270 {
 271         asus_wmi_unregister_driver(&asus_nb_wmi_driver);
 272 }
 273
 274 module_init(asus_nb_wmi_init);
 275 module_exit(asus_nb_wmi_exit);