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Corentin Charye12e6d92011-02-26 10:20:31 +01001/*
2 * Eee PC WMI hotkey driver
3 *
4 * Copyright(C) 2010 Intel Corporation.
Corentin Chary57ab7da2011-02-26 10:20:32 +01005 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
Corentin Charye12e6d92011-02-26 10:20:31 +01006 *
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>
35#include <acpi/acpi_bus.h>
36
37#include "asus-wmi.h"
38
39#define EEEPC_WMI_FILE "eeepc-wmi"
40
41MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
42MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
43MODULE_LICENSE("GPL");
44
45#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
46
47#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
48
49MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
50
51static bool hotplug_wireless;
52
53module_param(hotplug_wireless, bool, 0444);
54MODULE_PARM_DESC(hotplug_wireless,
55 "Enable hotplug for wireless device. "
56 "If your laptop needs that, please report to "
57 "acpi4asus-user@lists.sourceforge.net.");
58
59static const struct key_entry eeepc_wmi_keymap[] = {
60 /* Sleep already handled via generic ACPI code */
61 { KE_KEY, 0x30, { KEY_VOLUMEUP } },
62 { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
63 { KE_KEY, 0x32, { KEY_MUTE } },
64 { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
65 { KE_KEY, 0x5d, { KEY_WLAN } },
Keng-Yu Lin3b3e73f2011-03-01 12:56:13 +080066 { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
Corentin Charye12e6d92011-02-26 10:20:31 +010067 { KE_KEY, 0x82, { KEY_CAMERA } },
Corentin Chary5f854002011-02-26 10:20:43 +010068 { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
Corentin Charye12e6d92011-02-26 10:20:31 +010069 { KE_KEY, 0x88, { KEY_WLAN } },
Corentin Chary94814722011-03-30 16:32:33 +020070 { KE_KEY, 0xbd, { KEY_CAMERA } },
Corentin Charye12e6d92011-02-26 10:20:31 +010071 { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
72 { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
73 { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
Corentin Chary94814722011-03-30 16:32:33 +020074 { KE_KEY, 0xe8, { KEY_SCREENLOCK } },
Corentin Charye12e6d92011-02-26 10:20:31 +010075 { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
Corentin Chary5f854002011-02-26 10:20:43 +010076 { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
77 { KE_KEY, 0xec, { KEY_CAMERA_UP } },
78 { KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
79 { KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
80 { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
Corentin Charye12e6d92011-02-26 10:20:31 +010081 { KE_END, 0},
82};
83
84static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level,
85 void *context, void **retval)
86{
Joe Perches22441ff2011-03-29 15:21:38 -070087 pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
Corentin Charye12e6d92011-02-26 10:20:31 +010088 *(bool *)context = true;
89 return AE_CTRL_TERMINATE;
90}
91
92static int eeepc_wmi_check_atkd(void)
93{
94 acpi_status status;
95 bool found = false;
96
97 status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device,
98 &found, NULL);
99
100 if (ACPI_FAILURE(status) || !found)
101 return 0;
102 return -1;
103}
104
105static int eeepc_wmi_probe(struct platform_device *pdev)
106{
107 if (eeepc_wmi_check_atkd()) {
Joe Perches22441ff2011-03-29 15:21:38 -0700108 pr_warn("WMI device present, but legacy ATKD device is also "
109 "present and enabled\n");
110 pr_warn("You probably booted with acpi_osi=\"Linux\" or "
111 "acpi_osi=\"!Windows 2009\"\n");
112 pr_warn("Can't load eeepc-wmi, use default acpi_osi "
113 "(preferred) or eeepc-laptop\n");
Corentin Charye12e6d92011-02-26 10:20:31 +0100114 return -EBUSY;
115 }
116 return 0;
117}
118
119static void eeepc_dmi_check(struct asus_wmi_driver *driver)
120{
121 const char *model;
122
123 model = dmi_get_system_info(DMI_PRODUCT_NAME);
124 if (!model)
125 return;
126
127 /*
128 * Whitelist for wlan hotplug
129 *
130 * Asus 1000H needs the current hotplug code to handle
131 * Fn+F2 correctly. We may add other Asus here later, but
132 * it seems that most of the laptops supported by asus-wmi
133 * don't need to be on this list
134 */
135 if (strcmp(model, "1000H") == 0) {
136 driver->hotplug_wireless = true;
137 pr_info("wlan hotplug enabled\n");
138 }
139}
140
141static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
142{
143 driver->hotplug_wireless = hotplug_wireless;
144 eeepc_dmi_check(driver);
145}
146
147static struct asus_wmi_driver asus_wmi_driver = {
148 .name = EEEPC_WMI_FILE,
149 .owner = THIS_MODULE,
150 .event_guid = EEEPC_WMI_EVENT_GUID,
151 .keymap = eeepc_wmi_keymap,
152 .input_name = "Eee PC WMI hotkeys",
153 .input_phys = EEEPC_WMI_FILE "/input0",
154 .probe = eeepc_wmi_probe,
155 .quirks = eeepc_wmi_quirks,
156};
157
158
159static int __init eeepc_wmi_init(void)
160{
161 return asus_wmi_register_driver(&asus_wmi_driver);
162}
163
164static void __exit eeepc_wmi_exit(void)
165{
166 asus_wmi_unregister_driver(&asus_wmi_driver);
167}
168
169module_init(eeepc_wmi_init);
170module_exit(eeepc_wmi_exit);