drivers/platform/x86/asus-nb-wmi.c - third_party/linux - Git at Google

 /*
  * Asus Notebooks WMI hotkey driver
  *
  * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */

 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
 #include <linux/fb.h>
 #include <linux/dmi.h>
 #include <linux/i8042.h>

 #include "asus-wmi.h"

 #define	ASUS_NB_WMI_FILE	"asus-nb-wmi"

 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
 MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
 MODULE_LICENSE("GPL");

 #define ASUS_NB_WMI_EVENT_GUID	"0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"

 MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);

 /*
  * WAPF defines the behavior of the Fn+Fx wlan key
  * The significance of values is yet to be found, but
  * most of the time:
  * Bit | Bluetooth | WLAN
  *  0  | Hardware  | Hardware
  *  1  | Hardware  | Software
  *  4  | Software  | Software
  */
 static int wapf = -1;
 module_param(wapf, uint, 0444);
 MODULE_PARM_DESC(wapf, "WAPF value");

 static struct quirk_entry *quirks;

 static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
 			      struct serio *port)
 {
 	static bool extended;
 	bool ret = false;

 	if (str & I8042_STR_AUXDATA)
 		return false;

 	if (unlikely(data == 0xe1)) {
 		extended = true;
 		ret = true;
 	} else if (unlikely(extended)) {
 		extended = false;
 		ret = true;
 	}

 	return ret;
 }

 static struct quirk_entry quirk_asus_unknown = {
 	.wapf = 0,
 };

 static struct quirk_entry quirk_asus_q500a = {
 	.i8042_filter = asus_q500a_i8042_filter,
 };

 /*
  * For those machines that need software to control bt/wifi status
  * and can't adjust brightness through ACPI interface
  * and have duplicate events(ACPI and WMI) for display toggle
  */
 static struct quirk_entry quirk_asus_x55u = {
 	.wapf = 4,
 	.wmi_backlight_power = true,
 	.no_display_toggle = true,
 };

 static struct quirk_entry quirk_asus_wapf4 = {
 	.wapf = 4,
 };

 static struct quirk_entry quirk_asus_x200ca = {
 	.wapf = 2,
 };

 static struct quirk_entry quirk_asus_ux303ub = {
 	.wmi_backlight_native = true,
 };

 static struct quirk_entry quirk_asus_x550lb = {
 	.xusb2pr = 0x01D9,
 };

 static struct quirk_entry quirk_asus_forceals = {
 	.wmi_force_als_set = true,
 };

 static int dmi_matched(const struct dmi_system_id *dmi)
 {
 	pr_info("Identified laptop model '%s'\n", dmi->ident);
 	quirks = dmi->driver_data;
 	return 1;
 }

 static const struct dmi_system_id asus_quirks[] = {
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. Q500A",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Q500A"),
 		},
 		.driver_data = &quirk_asus_q500a,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. U32U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "U32U"),
 		},
 		/*
 		 * Note this machine has a Brazos APU, and most Brazos Asus
 		 * machines need quirk_asus_x55u / wmi_backlight_power but
 		 * here acpi-video seems to work fine for backlight control.
 		 */
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X302UA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X302UA"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X401U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
 		},
 		.driver_data = &quirk_asus_x55u,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X401A",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X401A1",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X45U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X456UA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X456UF",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X501U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
 		},
 		.driver_data = &quirk_asus_x55u,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X501A",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X501A1",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X550CA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X550CA"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X550CC",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X550CC"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X550CL",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X550CL"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X550VB",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X550VB"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X551CA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X551CA"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X55A",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X55C",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X55U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
 		},
 		.driver_data = &quirk_asus_x55u,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X55VD",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X75A",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X75A"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X75VBP",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X75VBP"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X75VD",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X75VD"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. 1015E",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "1015E"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. 1015U",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "1015U"),
 		},
 		.driver_data = &quirk_asus_wapf4,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X200CA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X200CA"),
 		},
 		.driver_data = &quirk_asus_x200ca,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. UX303UB",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
 		},
 		.driver_data = &quirk_asus_ux303ub,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. UX330UAK",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "UX330UAK"),
 		},
 		.driver_data = &quirk_asus_forceals,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X550LB",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
 		},
 		.driver_data = &quirk_asus_x550lb,
 	},
 	{
 		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. UX430UQ",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "UX430UQ"),
 		},
 		.driver_data = &quirk_asus_forceals,
 	},
 	{},
 };

 static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
 {
 	int ret;

 	quirks = &quirk_asus_unknown;
 	dmi_check_system(asus_quirks);

 	driver->quirks = quirks;
 	driver->panel_power = FB_BLANK_UNBLANK;

 	/* overwrite the wapf setting if the wapf paramater is specified */
 	if (wapf != -1)
 		quirks->wapf = wapf;
 	else
 		wapf = quirks->wapf;

 	if (quirks->i8042_filter) {
 		ret = i8042_install_filter(quirks->i8042_filter);
 		if (ret) {
 			pr_warn("Unable to install key filter\n");
 			return;
 		}
 		pr_info("Using i8042 filter function for receiving events\n");
 	}
 }

 static const struct key_entry asus_nb_wmi_keymap[] = {
 	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
 	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
 	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
 	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
 	{ KE_KEY, 0x32, { KEY_MUTE } },
 	{ KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
 	{ KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
 	{ KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
 	{ KE_KEY, 0x41, { KEY_NEXTSONG } },
 	{ KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
 	{ KE_KEY, 0x45, { KEY_PLAYPAUSE } },
 	{ KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
 	{ KE_KEY, 0x50, { KEY_EMAIL } },
 	{ KE_KEY, 0x51, { KEY_WWW } },
 	{ KE_KEY, 0x55, { KEY_CALC } },
 	{ KE_IGNORE, 0x57, },  /* Battery mode */
 	{ KE_IGNORE, 0x58, },  /* AC mode */
 	{ KE_KEY, 0x5C, { KEY_F15 } },  /* Power Gear key */
 	{ KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
 	{ KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
 	{ KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
 	{ KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
 	{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
 	{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
 	{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
 	{ KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
 	{ KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
 	{ KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
 	{ KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
 	{ KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
 	{ KE_IGNORE, 0x6E, },  /* Low Battery notification */
 	{ KE_KEY, 0x7a, { KEY_ALS_TOGGLE } }, /* Ambient Light Sensor Toggle */
 	{ KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
 	{ KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
 	{ KE_KEY, 0x82, { KEY_CAMERA } },
 	{ KE_KEY, 0x88, { KEY_RFKILL  } }, /* Radio Toggle Key */
 	{ KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
 	{ KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
 	{ KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
 	{ KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
 	{ KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
 	{ KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
 	{ KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
 	{ KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
 	{ KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
 	{ KE_KEY, 0x95, { KEY_MEDIA } },
 	{ KE_KEY, 0x99, { KEY_PHONE } },
 	{ KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
 	{ KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
 	{ KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
 	{ KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
 	{ KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
 	{ KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
 	{ KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
 	{ KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
 	{ KE_KEY, 0xB5, { KEY_CALC } },
 	{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 	{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 	{ KE_IGNORE, 0xC6, },  /* Ambient Light Sensor notification */
 	{ KE_END, 0},
 };

 static struct asus_wmi_driver asus_nb_wmi_driver = {
 	.name = ASUS_NB_WMI_FILE,
 	.owner = THIS_MODULE,
 	.event_guid = ASUS_NB_WMI_EVENT_GUID,
 	.keymap = asus_nb_wmi_keymap,
 	.input_name = "Asus WMI hotkeys",
 	.input_phys = ASUS_NB_WMI_FILE "/input0",
 	.detect_quirks = asus_nb_wmi_quirks,
 };


 static int __init asus_nb_wmi_init(void)
 {
 	return asus_wmi_register_driver(&asus_nb_wmi_driver);
 }

 static void __exit asus_nb_wmi_exit(void)
 {
 	asus_wmi_unregister_driver(&asus_nb_wmi_driver);
 }

 module_init(asus_nb_wmi_init);
 module_exit(asus_nb_wmi_exit);
	/*
	* Asus Notebooks WMI hotkey driver
	*
	* Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/

	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/input.h>
	#include <linux/input/sparse-keymap.h>
	#include <linux/fb.h>
	#include <linux/dmi.h>
	#include <linux/i8042.h>

	#include "asus-wmi.h"

	#define ASUS_NB_WMI_FILE "asus-nb-wmi"

	MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
	MODULE_DESCRIPTION("Asus Notebooks WMI Hotkey Driver");
	MODULE_LICENSE("GPL");

	#define ASUS_NB_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"

	MODULE_ALIAS("wmi:"ASUS_NB_WMI_EVENT_GUID);

	/*
	* WAPF defines the behavior of the Fn+Fx wlan key
	* The significance of values is yet to be found, but
	* most of the time:
	* Bit \| Bluetooth \| WLAN
	* 0 \| Hardware \| Hardware
	* 1 \| Hardware \| Software
	* 4 \| Software \| Software
	*/
	static int wapf = -1;
	module_param(wapf, uint, 0444);
	MODULE_PARM_DESC(wapf, "WAPF value");

	static struct quirk_entry *quirks;

	static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
	struct serio *port)
	{
	static bool extended;
	bool ret = false;

	if (str & I8042_STR_AUXDATA)
	return false;

	if (unlikely(data == 0xe1)) {
	extended = true;
	ret = true;
	} else if (unlikely(extended)) {
	extended = false;
	ret = true;
	}

	return ret;
	}

	static struct quirk_entry quirk_asus_unknown = {
	.wapf = 0,
	};

	static struct quirk_entry quirk_asus_q500a = {
	.i8042_filter = asus_q500a_i8042_filter,
	};

	/*
	* For those machines that need software to control bt/wifi status
	* and can't adjust brightness through ACPI interface
	* and have duplicate events(ACPI and WMI) for display toggle
	*/
	static struct quirk_entry quirk_asus_x55u = {
	.wapf = 4,
	.wmi_backlight_power = true,
	.no_display_toggle = true,
	};

	static struct quirk_entry quirk_asus_wapf4 = {
	.wapf = 4,
	};

	static struct quirk_entry quirk_asus_x200ca = {
	.wapf = 2,
	};

	static struct quirk_entry quirk_asus_ux303ub = {
	.wmi_backlight_native = true,
	};

	static struct quirk_entry quirk_asus_x550lb = {
	.xusb2pr = 0x01D9,
	};

	static struct quirk_entry quirk_asus_forceals = {
	.wmi_force_als_set = true,
	};

	static int dmi_matched(const struct dmi_system_id *dmi)
	{
	pr_info("Identified laptop model '%s'\n", dmi->ident);
	quirks = dmi->driver_data;
	return 1;
	}

	static const struct dmi_system_id asus_quirks[] = {
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. Q500A",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "Q500A"),
	},
	.driver_data = &quirk_asus_q500a,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. U32U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
	DMI_MATCH(DMI_PRODUCT_NAME, "U32U"),
	},
	/*
	* Note this machine has a Brazos APU, and most Brazos Asus
	* machines need quirk_asus_x55u / wmi_backlight_power but
	* here acpi-video seems to work fine for backlight control.
	*/
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X302UA",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X302UA"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X401U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X401U"),
	},
	.driver_data = &quirk_asus_x55u,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X401A",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X401A"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X401A1",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X401A1"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X45U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X456UA",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X456UF",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X501U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X501U"),
	},
	.driver_data = &quirk_asus_x55u,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X501A",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X501A"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X501A1",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X501A1"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X550CA",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X550CA"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X550CC",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X550CC"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X550CL",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X550CL"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X550VB",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X550VB"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X551CA",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X551CA"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X55A",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X55A"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X55C",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X55C"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X55U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X55U"),
	},
	.driver_data = &quirk_asus_x55u,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X55VD",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X55VD"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X75A",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X75A"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X75VBP",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X75VBP"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X75VD",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X75VD"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. 1015E",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "1015E"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. 1015U",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "1015U"),
	},
	.driver_data = &quirk_asus_wapf4,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X200CA",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X200CA"),
	},
	.driver_data = &quirk_asus_x200ca,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. UX303UB",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"),
	},
	.driver_data = &quirk_asus_ux303ub,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. UX330UAK",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "UX330UAK"),
	},
	.driver_data = &quirk_asus_forceals,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. X550LB",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
	},
	.driver_data = &quirk_asus_x550lb,
	},
	{
	.callback = dmi_matched,
	.ident = "ASUSTeK COMPUTER INC. UX430UQ",
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_MATCH(DMI_PRODUCT_NAME, "UX430UQ"),
	},
	.driver_data = &quirk_asus_forceals,
	},
	{},
	};

	static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
	{
	int ret;

	quirks = &quirk_asus_unknown;
	dmi_check_system(asus_quirks);

	driver->quirks = quirks;
	driver->panel_power = FB_BLANK_UNBLANK;

	/* overwrite the wapf setting if the wapf paramater is specified */
	if (wapf != -1)
	quirks->wapf = wapf;
	else
	wapf = quirks->wapf;

	if (quirks->i8042_filter) {
	ret = i8042_install_filter(quirks->i8042_filter);
	if (ret) {
	pr_warn("Unable to install key filter\n");
	return;
	}
	pr_info("Using i8042 filter function for receiving events\n");
	}
	}

	static const struct key_entry asus_nb_wmi_keymap[] = {
	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
	{ KE_KEY, 0x32, { KEY_MUTE } },
	{ KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */
	{ KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */
	{ KE_KEY, 0x40, { KEY_PREVIOUSSONG } },
	{ KE_KEY, 0x41, { KEY_NEXTSONG } },
	{ KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */
	{ KE_KEY, 0x45, { KEY_PLAYPAUSE } },
	{ KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */
	{ KE_KEY, 0x50, { KEY_EMAIL } },
	{ KE_KEY, 0x51, { KEY_WWW } },
	{ KE_KEY, 0x55, { KEY_CALC } },
	{ KE_IGNORE, 0x57, }, /* Battery mode */
	{ KE_IGNORE, 0x58, }, /* AC mode */
	{ KE_KEY, 0x5C, { KEY_F15 } }, /* Power Gear key */
	{ KE_KEY, 0x5D, { KEY_WLAN } }, /* Wireless console Toggle */
	{ KE_KEY, 0x5E, { KEY_WLAN } }, /* Wireless console Enable */
	{ KE_KEY, 0x5F, { KEY_WLAN } }, /* Wireless console Disable */
	{ KE_KEY, 0x60, { KEY_TOUCHPAD_ON } },
	{ KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */
	{ KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */
	{ KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */
	{ KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */
	{ KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */
	{ KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */
	{ KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */
	{ KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } },
	{ KE_IGNORE, 0x6E, }, /* Low Battery notification */
	{ KE_KEY, 0x7a, { KEY_ALS_TOGGLE } }, /* Ambient Light Sensor Toggle */
	{ KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */
	{ KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */
	{ KE_KEY, 0x82, { KEY_CAMERA } },
	{ KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */
	{ KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */
	{ KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */
	{ KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */
	{ KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */
	{ KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */
	{ KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */
	{ KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */
	{ KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */
	{ KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */
	{ KE_KEY, 0x95, { KEY_MEDIA } },
	{ KE_KEY, 0x99, { KEY_PHONE } },
	{ KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */
	{ KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */
	{ KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */
	{ KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */
	{ KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */
	{ KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */
	{ KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */
	{ KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */
	{ KE_KEY, 0xB5, { KEY_CALC } },
	{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
	{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
	{ KE_IGNORE, 0xC6, }, /* Ambient Light Sensor notification */
	{ KE_END, 0},
	};

	static struct asus_wmi_driver asus_nb_wmi_driver = {
	.name = ASUS_NB_WMI_FILE,
	.owner = THIS_MODULE,
	.event_guid = ASUS_NB_WMI_EVENT_GUID,
	.keymap = asus_nb_wmi_keymap,
	.input_name = "Asus WMI hotkeys",
	.input_phys = ASUS_NB_WMI_FILE "/input0",
	.detect_quirks = asus_nb_wmi_quirks,
	};


	static int __init asus_nb_wmi_init(void)
	{
	return asus_wmi_register_driver(&asus_nb_wmi_driver);
	}

	static void __exit asus_nb_wmi_exit(void)
	{
	asus_wmi_unregister_driver(&asus_nb_wmi_driver);
	}

	module_init(asus_nb_wmi_init);
	module_exit(asus_nb_wmi_exit);