[mirror_ubuntu-bionic-kernel.git] / drivers / platform / x86 / eeepc-wmi.c

/*
 * Eee PC WMI hotkey driver
 *
 * Copyright(C) 2010 Intel Corporation.
 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
 *
 * Portions based on wistron_btns.c:
 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
 *
 *  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/dmi.h>
#include <linux/fb.h>
#include <linux/acpi.h>

#include "asus-wmi.h"

#define	EEEPC_WMI_FILE	"eeepc-wmi"

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

#define EEEPC_ACPI_HID		"ASUS010" /* old _HID used in eeepc-laptop */

#define EEEPC_WMI_EVENT_GUID	"ABBC0F72-8EA1-11D1-00A0-C90629100000"

MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);

static bool hotplug_wireless;

module_param(hotplug_wireless, bool, 0444);
MODULE_PARM_DESC(hotplug_wireless,
		 "Enable hotplug for wireless device. "
		 "If your laptop needs that, please report to "
		 "acpi4asus-user@lists.sourceforge.net.");

/* Values for T101MT "Home" key */
#define HOME_PRESS	0xe4
#define HOME_HOLD	0xea
#define HOME_RELEASE	0xe5

static const struct key_entry eeepc_wmi_keymap[] = {
	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
	/* Sleep already handled via generic ACPI code */
	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
	{ KE_KEY, 0x32, { KEY_MUTE } },
	{ KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
	{ KE_KEY, 0x5d, { KEY_WLAN } },
	{ KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
	{ KE_KEY, 0x82, { KEY_CAMERA } },
	{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
	{ KE_KEY, 0x88, { KEY_WLAN } },
	{ KE_KEY, 0xbd, { KEY_CAMERA } },
	{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
	{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
	{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
	{ KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
	{ KE_KEY, 0xe8, { KEY_SCREENLOCK } },
	{ KE_KEY, 0xe9, { KEY_DISPLAYTOGGLE } },
	{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
	{ KE_KEY, 0xec, { KEY_CAMERA_UP } },
	{ KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
	{ KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
	{ KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
	{ KE_KEY, 0xf3, { KEY_MENU } },
	{ KE_KEY, 0xf5, { KEY_HOMEPAGE } },
	{ KE_KEY, 0xf6, { KEY_ESC } },
	{ KE_END, 0},
};

static struct quirk_entry quirk_asus_unknown = {
};

static struct quirk_entry quirk_asus_1000h = {
	.hotplug_wireless = true,
};

static struct quirk_entry quirk_asus_et2012_type1 = {
	.store_backlight_power = true,
};

static struct quirk_entry quirk_asus_et2012_type3 = {
	.scalar_panel_brightness = true,
	.store_backlight_power = true,
};

static struct quirk_entry quirk_asus_x101ch = {
	/* We need this when ACPI function doesn't do this well */
	.wmi_backlight_power = true,
};

static struct quirk_entry *quirks;

static void et2012_quirks(void)
{
	const struct dmi_device *dev = NULL;
	char oemstring[30];

	while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
		if (sscanf(dev->name, "AEMS%24c", oemstring) == 1) {
			if (oemstring[18] == '1')
				quirks = &quirk_asus_et2012_type1;
			else if (oemstring[18] == '3')
				quirks = &quirk_asus_et2012_type3;
			break;
		}
	}
}

static int dmi_matched(const struct dmi_system_id *dmi)
{
	char *model;

	quirks = dmi->driver_data;

	model = (char *)dmi->matches[1].substr;
	if (unlikely(strncmp(model, "ET2012", 6) == 0))
		et2012_quirks();

	return 1;
}

static const struct dmi_system_id asus_quirks[] = {
	{
		.callback = dmi_matched,
		.ident = "ASUSTeK Computer INC. 1000H",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "1000H"),
		},
		.driver_data = &quirk_asus_1000h,
	},
	{
		.callback = dmi_matched,
		.ident = "ASUSTeK Computer INC. ET2012E/I",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "ET2012"),
		},
		.driver_data = &quirk_asus_unknown,
	},
	{
		.callback = dmi_matched,
		.ident = "ASUSTeK Computer INC. X101CH",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"),
		},
		.driver_data = &quirk_asus_x101ch,
	},
	{
		.callback = dmi_matched,
		.ident = "ASUSTeK Computer INC. 1015CX",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"),
		},
		.driver_data = &quirk_asus_x101ch,
	},
	{},
};

static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
				 unsigned int *value, bool *autorelease)
{
	switch (*code) {
	case HOME_PRESS:
		*value = 1;
		*autorelease = 0;
		break;
	case HOME_HOLD:
		*code = ASUS_WMI_KEY_IGNORE;
		break;
	case HOME_RELEASE:
		*code = HOME_PRESS;
		*value = 0;
		*autorelease = 0;
		break;
	}
}

static int eeepc_wmi_probe(struct platform_device *pdev)
{
	if (acpi_dev_found(EEEPC_ACPI_HID)) {
		pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
		pr_warn("WMI device present, but legacy ATKD device is also "
			"present and enabled\n");
		pr_warn("You probably booted with acpi_osi=\"Linux\" or "
			"acpi_osi=\"!Windows 2009\"\n");
		pr_warn("Can't load eeepc-wmi, use default acpi_osi "
			"(preferred) or eeepc-laptop\n");
		return -EBUSY;
	}
	return 0;
}

static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
{
	quirks = &quirk_asus_unknown;
	quirks->hotplug_wireless = hotplug_wireless;

	dmi_check_system(asus_quirks);

	driver->quirks = quirks;
	driver->quirks->wapf = -1;
	driver->panel_power = FB_BLANK_UNBLANK;
}

static struct asus_wmi_driver asus_wmi_driver = {
	.name = EEEPC_WMI_FILE,
	.owner = THIS_MODULE,
	.event_guid = EEEPC_WMI_EVENT_GUID,
	.keymap = eeepc_wmi_keymap,
	.input_name = "Eee PC WMI hotkeys",
	.input_phys = EEEPC_WMI_FILE "/input0",
	.key_filter = eeepc_wmi_key_filter,
	.probe = eeepc_wmi_probe,
	.detect_quirks = eeepc_wmi_quirks,
};


static int __init eeepc_wmi_init(void)
{
	return asus_wmi_register_driver(&asus_wmi_driver);
}

static void __exit eeepc_wmi_exit(void)
{
	asus_wmi_unregister_driver(&asus_wmi_driver);
}

module_init(eeepc_wmi_init);
module_exit(eeepc_wmi_exit);
Commit	Line	Data
e12e6d94 CC	1	/*
	2	* Eee PC WMI hotkey driver
	3	*
	4	* Copyright(C) 2010 Intel Corporation.
57ab7dae	5	* Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
e12e6d94 CC	6	*
	7	* Portions based on wistron_btns.c:
	8	* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
	9	* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
	10	* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*/
	26
	27	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	28
	29	#include <linux/kernel.h>
	30	#include <linux/module.h>
	31	#include <linux/init.h>
	32	#include <linux/input.h>
	33	#include <linux/input/sparse-keymap.h>
	34	#include <linux/dmi.h>
6e0044be	35	#include <linux/fb.h>
8b48463f	36	#include <linux/acpi.h>
e12e6d94 CC	37
	38	#include "asus-wmi.h"
	39
	40	#define EEEPC_WMI_FILE "eeepc-wmi"
	41
5909c654	42	MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
e12e6d94 CC	43	MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
	44	MODULE_LICENSE("GPL");
	45
	46	#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
	47
	48	#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
	49
	50	MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
	51
	52	static bool hotplug_wireless;
	53
	54	module_param(hotplug_wireless, bool, 0444);
	55	MODULE_PARM_DESC(hotplug_wireless,
	56	"Enable hotplug for wireless device. "
	57	"If your laptop needs that, please report to "
	58	"acpi4asus-user@lists.sourceforge.net.");
	59
6ae8b807 SF	60	/* Values for T101MT "Home" key */
	61	#define HOME_PRESS 0xe4
	62	#define HOME_HOLD 0xea
	63	#define HOME_RELEASE 0xe5
	64
e12e6d94	65	static const struct key_entry eeepc_wmi_keymap[] = {
3ba0302b CC	66	{ KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
3ba0302b CC	67	{ KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
e12e6d94 CC	68	/* Sleep already handled via generic ACPI code */
	69	{ KE_KEY, 0x30, { KEY_VOLUMEUP } },
	70	{ KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
	71	{ KE_KEY, 0x32, { KEY_MUTE } },
	72	{ KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
	73	{ KE_KEY, 0x5d, { KEY_WLAN } },
3b3e73f7	74	{ KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
e12e6d94	75	{ KE_KEY, 0x82, { KEY_CAMERA } },
5f854009	76	{ KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
e12e6d94	77	{ KE_KEY, 0x88, { KEY_WLAN } },
94814725	78	{ KE_KEY, 0xbd, { KEY_CAMERA } },
e12e6d94 CC	79	{ KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
	80	{ KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
	81	{ KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
6ae8b807	82	{ KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
94814725	83	{ KE_KEY, 0xe8, { KEY_SCREENLOCK } },
272c77d5	84	{ KE_KEY, 0xe9, { KEY_DISPLAYTOGGLE } },
5f854009 CC	85	{ KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
	86	{ KE_KEY, 0xec, { KEY_CAMERA_UP } },
	87	{ KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
	88	{ KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
	89	{ KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
eb649a81 CWH	90	{ KE_KEY, 0xf3, { KEY_MENU } },
	91	{ KE_KEY, 0xf5, { KEY_HOMEPAGE } },
	92	{ KE_KEY, 0xf6, { KEY_ESC } },
e12e6d94 CC	93	{ KE_END, 0},
	94	};
	95
c87992d1 AK	96	static struct quirk_entry quirk_asus_unknown = {
	97	};
	98
	99	static struct quirk_entry quirk_asus_1000h = {
	100	.hotplug_wireless = true,
	101	};
	102
6e0044be AK	103	static struct quirk_entry quirk_asus_et2012_type1 = {
	104	.store_backlight_power = true,
	105	};
	106
c87992d1 AK	107	static struct quirk_entry quirk_asus_et2012_type3 = {
c87992d1 AK	108	.scalar_panel_brightness = true,
6e0044be	109	.store_backlight_power = true,
c87992d1 AK	110	};
c87992d1 AK	111
272c77d5 AK	112	static struct quirk_entry quirk_asus_x101ch = {
	113	/* We need this when ACPI function doesn't do this well */
	114	.wmi_backlight_power = true,
	115	};
	116
c55d995d CC	117	static struct quirk_entry *quirks;
c55d995d CC	118
7a61d020 CC	119	static void et2012_quirks(void)
	120	{
	121	const struct dmi_device *dev = NULL;
	122	char oemstring[30];
	123
	124	while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
	125	if (sscanf(dev->name, "AEMS%24c", oemstring) == 1) {
	126	if (oemstring[18] == '1')
	127	quirks = &quirk_asus_et2012_type1;
	128	else if (oemstring[18] == '3')
	129	quirks = &quirk_asus_et2012_type3;
	130	break;
	131	}
	132	}
	133	}
	134
c87992d1 AK	135	static int dmi_matched(const struct dmi_system_id *dmi)
	136	{
	137	char *model;
7a61d020	138
c87992d1 AK	139	quirks = dmi->driver_data;
	140
	141	model = (char *)dmi->matches[1].substr;
7a61d020 CC	142	if (unlikely(strncmp(model, "ET2012", 6) == 0))
	143	et2012_quirks();
	144
c87992d1 AK	145	return 1;
	146	}
	147
7e6c227c	148	static const struct dmi_system_id asus_quirks[] = {
c87992d1 AK	149	{
	150	.callback = dmi_matched,
	151	.ident = "ASUSTeK Computer INC. 1000H",
	152	.matches = {
	153	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
	154	DMI_MATCH(DMI_PRODUCT_NAME, "1000H"),
	155	},
	156	.driver_data = &quirk_asus_1000h,
	157	},
	158	{
	159	.callback = dmi_matched,
	160	.ident = "ASUSTeK Computer INC. ET2012E/I",
	161	.matches = {
	162	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
	163	DMI_MATCH(DMI_PRODUCT_NAME, "ET2012"),
	164	},
	165	.driver_data = &quirk_asus_unknown,
	166	},
272c77d5 AK	167	{
	168	.callback = dmi_matched,
	169	.ident = "ASUSTeK Computer INC. X101CH",
	170	.matches = {
	171	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	172	DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"),
	173	},
	174	.driver_data = &quirk_asus_x101ch,
	175	},
	176	{
	177	.callback = dmi_matched,
	178	.ident = "ASUSTeK Computer INC. 1015CX",
	179	.matches = {
	180	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	181	DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"),
	182	},
	183	.driver_data = &quirk_asus_x101ch,
	184	},
c87992d1 AK	185	{},
	186	};
	187
6ae8b807 SF	188	static void eeepc_wmi_key_filter(struct asus_wmi_driver asus_wmi, int code,
	189	unsigned int value, bool autorelease)
	190	{
	191	switch (*code) {
	192	case HOME_PRESS:
	193	*value = 1;
	194	*autorelease = 0;
	195	break;
	196	case HOME_HOLD:
	197	*code = ASUS_WMI_KEY_IGNORE;
	198	break;
	199	case HOME_RELEASE:
	200	*code = HOME_PRESS;
	201	*value = 0;
	202	*autorelease = 0;
	203	break;
	204	}
	205	}
	206
e12e6d94 CC	207	static int eeepc_wmi_probe(struct platform_device *pdev)
e12e6d94 CC	208	{
9f9de69d LW	209	if (acpi_dev_found(EEEPC_ACPI_HID)) {
9f9de69d LW	210	pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
22441ffe JP	211	pr_warn("WMI device present, but legacy ATKD device is also "
	212	"present and enabled\n");
	213	pr_warn("You probably booted with acpi_osi=\"Linux\" or "
	214	"acpi_osi=\"!Windows 2009\"\n");
	215	pr_warn("Can't load eeepc-wmi, use default acpi_osi "
	216	"(preferred) or eeepc-laptop\n");
e12e6d94 CC	217	return -EBUSY;
	218	}
	219	return 0;
	220	}
	221
e12e6d94 CC	222	static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
e12e6d94 CC	223	{
c55d995d CC	224	quirks = &quirk_asus_unknown;
	225	quirks->hotplug_wireless = hotplug_wireless;
	226
c87992d1	227	dmi_check_system(asus_quirks);
c55d995d	228
c87992d1	229	driver->quirks = quirks;
c55d995d CC	230	driver->quirks->wapf = -1;
c55d995d CC	231	driver->panel_power = FB_BLANK_UNBLANK;
e12e6d94 CC	232	}
	233
	234	static struct asus_wmi_driver asus_wmi_driver = {
	235	.name = EEEPC_WMI_FILE,
	236	.owner = THIS_MODULE,
	237	.event_guid = EEEPC_WMI_EVENT_GUID,
	238	.keymap = eeepc_wmi_keymap,
	239	.input_name = "Eee PC WMI hotkeys",
	240	.input_phys = EEEPC_WMI_FILE "/input0",
6ae8b807	241	.key_filter = eeepc_wmi_key_filter,
e12e6d94	242	.probe = eeepc_wmi_probe,
c87992d1	243	.detect_quirks = eeepc_wmi_quirks,
e12e6d94 CC	244	};
	245
	246
	247	static int __init eeepc_wmi_init(void)
	248	{
	249	return asus_wmi_register_driver(&asus_wmi_driver);
	250	}
	251
	252	static void __exit eeepc_wmi_exit(void)
	253	{
	254	asus_wmi_unregister_driver(&asus_wmi_driver);
	255	}
	256
	257	module_init(eeepc_wmi_init);
	258	module_exit(eeepc_wmi_exit);