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 static struct quirk_entry quirk_asus_x401u = {
  63         .wapf = 4,
  64 };
  65
  66 static int dmi_matched(const struct dmi_system_id *dmi)
  67 {
  68         quirks = dmi->driver_data;
  69         return 1;
  70 }
  71
  72 static struct dmi_system_id asus_quirks[] = {
  73         {
  74                 .callback = dmi_matched,
  75                 .ident = "ASUSTeK COMPUTER INC. X401U",
  76                 .matches = {
  77                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
  78                         DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
  79                 },
  80                 .driver_data = &quirk_asus_x401u,
  81         },
  82         {
  83                 .callback = dmi_matched,
  84                 .ident = "ASUSTeK COMPUTER INC. X401A1",
  85                 .matches = {
  86                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
  87                         DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
  88                 },
  89                 .driver_data = &quirk_asus_x401u,
  90         },
  91         {
  92                 .callback = dmi_matched,
  93                 .ident = "ASUSTeK COMPUTER INC. X501U",
  94                 .matches = {
  95                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
  96                         DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
  97                 },
  98                 .driver_data = &quirk_asus_x401u,
  99         },
 100         {
 101                 .callback = dmi_matched,
 102                 .ident = "ASUSTeK COMPUTER INC. X501A1",
 103                 .matches = {
 104                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 105                         DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
 106                 },
 107                 .driver_data = &quirk_asus_x401u,
 108         },
 109         {
 110                 .callback = dmi_matched,
 111                 .ident = "ASUSTeK COMPUTER INC. X55A",
 112                 .matches = {
 113                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 114                         DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
 115                 },
 116                 .driver_data = &quirk_asus_x401u,
 117         },
 118         {
 119                 .callback = dmi_matched,
 120                 .ident = "ASUSTeK COMPUTER INC. X55C",
 121                 .matches = {
 122                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 123                         DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
 124                 },
 125                 .driver_data = &quirk_asus_x401u,
 126         },
 127         {
 128                 .callback = dmi_matched,
 129                 .ident = "ASUSTeK COMPUTER INC. X55U",
 130                 .matches = {
 131                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 132                         DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
 133                 },
 134                 .driver_data = &quirk_asus_x401u,
 135         },
 136         {
 137                 .callback = dmi_matched,
 138                 .ident = "ASUSTeK COMPUTER INC. X55VD",
 139                 .matches = {
 140                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 141                         DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
 142                 },
 143                 .driver_data = &quirk_asus_x401u,
 144         },
 145         {},
 146 };
 147
 148 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
 149 {
 150         quirks = &quirk_asus_unknown;
 151         dmi_check_system(asus_quirks);
 152
 153         driver->quirks = quirks;
 154         driver->panel_power = FB_BLANK_UNBLANK;
 155
 156         /* overwrite the wapf setting if the wapf paramater is specified */
 157         if (wapf != -1)
 158                 quirks->wapf = wapf;
 159         else
 160                 wapf = quirks->wapf;
 161 }
 162
 163 static const struct key_entry asus_nb_wmi_keymap[] = {
 164         { KE_KEY, 0x30, { KEY_VOLUMEUP } },
 165         { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 166         { KE_KEY, 0x32, { KEY_MUTE } },
 167         { KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
 168         { KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 169         { KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 170         { KE_KEY, 0x41, { KEY_NEXTSONG } },
 171         { KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 172         { KE_KEY, 0x45, { KEY_PLAYPAUSE } },
 173         { KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 174         { KE_KEY, 0x50, { KEY_EMAIL } },
 175         { KE_KEY, 0x51, { KEY_WWW } },
 176         { KE_KEY, 0x55, { KEY_CALC } },
 177         { KE_IGNORE, 0x57, },  /* Battery mode */
 178         { KE_IGNORE, 0x58, },  /* AC mode */
 179         { KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
 180         { KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
 181         { KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
 182         { KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
 183         { KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
 184         { KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* LCD Only */
 185         { KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* CRT Only */
 186         { KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* LCD + CRT */
 187         { KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
 188         { KE_IGNORE, 0x6E, },  /* Low Battery notification */
 189         { KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
 190         { KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 191         { KE_KEY, 0x82, { KEY_CAMERA } },
 192         { KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
 193         { KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
 194         { KE_KEY, 0x95, { KEY_MEDIA } },
 195         { KE_KEY, 0x99, { KEY_PHONE } },
 196         { KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
 197         { KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
 198         { KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
 199         { KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
 200         { KE_KEY, 0xB5, { KEY_CALC } },
 201         { KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 202         { KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 203         { KE_END, 0},
 204 };
 205
 206 static struct asus_wmi_driver asus_nb_wmi_driver = {
 207         .name = ASUS_NB_WMI_FILE,
 208         .owner = THIS_MODULE,
 209         .event_guid = ASUS_NB_WMI_EVENT_GUID,
 210         .keymap = asus_nb_wmi_keymap,
 211         .input_name = "Asus WMI hotkeys",
 212         .input_phys = ASUS_NB_WMI_FILE "/input0",
 213         .detect_quirks = asus_nb_wmi_quirks,
 214 };
 215
 216
 217 static int __init asus_nb_wmi_init(void)
 218 {
 219         return asus_wmi_register_driver(&asus_nb_wmi_driver);
 220 }
 221
 222 static void __exit asus_nb_wmi_exit(void)
 223 {
 224         asus_wmi_unregister_driver(&asus_nb_wmi_driver);
 225 }
 226
 227 module_init(asus_nb_wmi_init);
 228 module_exit(asus_nb_wmi_exit);