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1 /*
2  * Asus PC WMI hotkey driver
3  *
4  * Copyright(C) 2010 Intel Corporation.
5  * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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 #ifndef _ASUS_WMI_H_
28 #define _ASUS_WMI_H_
29 
30 #include <linux/platform_device.h>
31 #include <linux/i8042.h>
32 
33 #define ASUS_WMI_KEY_IGNORE (-1)
34 #define ASUS_WMI_BRN_DOWN	0x20
35 #define ASUS_WMI_BRN_UP		0x2f
36 
37 struct module;
38 struct key_entry;
39 struct asus_wmi;
40 
41 struct quirk_entry {
42 	bool no_rfkill;
43 	bool hotplug_wireless;
44 	bool scalar_panel_brightness;
45 	bool store_backlight_power;
46 	bool wmi_backlight_power;
47 	bool wmi_backlight_native;
48 	bool wmi_backlight_set_devstate;
49 	bool wmi_force_als_set;
50 	int wapf;
51 	/*
52 	 * For machines with AMD graphic chips, it will send out WMI event
53 	 * and ACPI interrupt at the same time while hitting the hotkey.
54 	 * To simplify the problem, we just have to ignore the WMI event,
55 	 * and let the ACPI interrupt to send out the key event.
56 	 */
57 	int no_display_toggle;
58 	u32 xusb2pr;
59 
60 	bool (*i8042_filter)(unsigned char data, unsigned char str,
61 			     struct serio *serio);
62 };
63 
64 struct asus_wmi_driver {
65 	int			brightness;
66 	int			panel_power;
67 	int			wlan_ctrl_by_user;
68 
69 	const char		*name;
70 	struct module		*owner;
71 
72 	const char		*event_guid;
73 
74 	const struct key_entry	*keymap;
75 	const char		*input_name;
76 	const char		*input_phys;
77 	struct quirk_entry	*quirks;
78 	/* Returns new code, value, and autorelease values in arguments.
79 	 * Return ASUS_WMI_KEY_IGNORE in code if event should be ignored. */
80 	void (*key_filter) (struct asus_wmi_driver *driver, int *code,
81 			    unsigned int *value, bool *autorelease);
82 
83 	int (*probe) (struct platform_device *device);
84 	void (*detect_quirks) (struct asus_wmi_driver *driver);
85 
86 	struct platform_driver	platform_driver;
87 	struct platform_device *platform_device;
88 };
89 
90 int asus_wmi_register_driver(struct asus_wmi_driver *driver);
91 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver);
92 
93 #endif /* !_ASUS_WMI_H_ */
94