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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> | |
35 | #include <acpi/acpi_bus.h> | |
36 | ||
37 | #include "asus-wmi.h" | |
38 | ||
39 | #define EEEPC_WMI_FILE "eeepc-wmi" | |
40 | ||
41 | MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>"); | |
42 | MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver"); | |
43 | MODULE_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 | ||
49 | MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID); | |
50 | ||
51 | static bool hotplug_wireless; | |
52 | ||
53 | module_param(hotplug_wireless, bool, 0444); | |
54 | MODULE_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 | ||
6ae8b807 SF |
59 | /* Values for T101MT "Home" key */ |
60 | #define HOME_PRESS 0xe4 | |
61 | #define HOME_HOLD 0xea | |
62 | #define HOME_RELEASE 0xe5 | |
63 | ||
e12e6d94 CC |
64 | static const struct key_entry eeepc_wmi_keymap[] = { |
65 | /* Sleep already handled via generic ACPI code */ | |
66 | { KE_KEY, 0x30, { KEY_VOLUMEUP } }, | |
67 | { KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, | |
68 | { KE_KEY, 0x32, { KEY_MUTE } }, | |
69 | { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */ | |
70 | { KE_KEY, 0x5d, { KEY_WLAN } }, | |
3b3e73f7 | 71 | { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */ |
e12e6d94 | 72 | { KE_KEY, 0x82, { KEY_CAMERA } }, |
5f854009 | 73 | { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } }, |
e12e6d94 | 74 | { KE_KEY, 0x88, { KEY_WLAN } }, |
94814725 | 75 | { KE_KEY, 0xbd, { KEY_CAMERA } }, |
e12e6d94 CC |
76 | { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } }, |
77 | { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */ | |
78 | { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */ | |
6ae8b807 | 79 | { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */ |
94814725 | 80 | { KE_KEY, 0xe8, { KEY_SCREENLOCK } }, |
e12e6d94 | 81 | { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } }, |
5f854009 CC |
82 | { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } }, |
83 | { KE_KEY, 0xec, { KEY_CAMERA_UP } }, | |
84 | { KE_KEY, 0xed, { KEY_CAMERA_DOWN } }, | |
85 | { KE_KEY, 0xee, { KEY_CAMERA_LEFT } }, | |
86 | { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } }, | |
e12e6d94 CC |
87 | { KE_END, 0}, |
88 | }; | |
89 | ||
6ae8b807 SF |
90 | static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code, |
91 | unsigned int *value, bool *autorelease) | |
92 | { | |
93 | switch (*code) { | |
94 | case HOME_PRESS: | |
95 | *value = 1; | |
96 | *autorelease = 0; | |
97 | break; | |
98 | case HOME_HOLD: | |
99 | *code = ASUS_WMI_KEY_IGNORE; | |
100 | break; | |
101 | case HOME_RELEASE: | |
102 | *code = HOME_PRESS; | |
103 | *value = 0; | |
104 | *autorelease = 0; | |
105 | break; | |
106 | } | |
107 | } | |
108 | ||
e12e6d94 CC |
109 | static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level, |
110 | void *context, void **retval) | |
111 | { | |
22441ffe | 112 | pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID); |
e12e6d94 CC |
113 | *(bool *)context = true; |
114 | return AE_CTRL_TERMINATE; | |
115 | } | |
116 | ||
117 | static int eeepc_wmi_check_atkd(void) | |
118 | { | |
119 | acpi_status status; | |
120 | bool found = false; | |
121 | ||
122 | status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device, | |
123 | &found, NULL); | |
124 | ||
125 | if (ACPI_FAILURE(status) || !found) | |
126 | return 0; | |
127 | return -1; | |
128 | } | |
129 | ||
130 | static int eeepc_wmi_probe(struct platform_device *pdev) | |
131 | { | |
132 | if (eeepc_wmi_check_atkd()) { | |
22441ffe JP |
133 | pr_warn("WMI device present, but legacy ATKD device is also " |
134 | "present and enabled\n"); | |
135 | pr_warn("You probably booted with acpi_osi=\"Linux\" or " | |
136 | "acpi_osi=\"!Windows 2009\"\n"); | |
137 | pr_warn("Can't load eeepc-wmi, use default acpi_osi " | |
138 | "(preferred) or eeepc-laptop\n"); | |
e12e6d94 CC |
139 | return -EBUSY; |
140 | } | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static void eeepc_dmi_check(struct asus_wmi_driver *driver) | |
145 | { | |
146 | const char *model; | |
147 | ||
148 | model = dmi_get_system_info(DMI_PRODUCT_NAME); | |
149 | if (!model) | |
150 | return; | |
151 | ||
152 | /* | |
153 | * Whitelist for wlan hotplug | |
154 | * | |
155 | * Asus 1000H needs the current hotplug code to handle | |
156 | * Fn+F2 correctly. We may add other Asus here later, but | |
157 | * it seems that most of the laptops supported by asus-wmi | |
158 | * don't need to be on this list | |
159 | */ | |
160 | if (strcmp(model, "1000H") == 0) { | |
161 | driver->hotplug_wireless = true; | |
162 | pr_info("wlan hotplug enabled\n"); | |
163 | } | |
164 | } | |
165 | ||
166 | static void eeepc_wmi_quirks(struct asus_wmi_driver *driver) | |
167 | { | |
168 | driver->hotplug_wireless = hotplug_wireless; | |
fddbfed5 | 169 | driver->wapf = -1; |
e12e6d94 CC |
170 | eeepc_dmi_check(driver); |
171 | } | |
172 | ||
173 | static struct asus_wmi_driver asus_wmi_driver = { | |
174 | .name = EEEPC_WMI_FILE, | |
175 | .owner = THIS_MODULE, | |
176 | .event_guid = EEEPC_WMI_EVENT_GUID, | |
177 | .keymap = eeepc_wmi_keymap, | |
178 | .input_name = "Eee PC WMI hotkeys", | |
179 | .input_phys = EEEPC_WMI_FILE "/input0", | |
6ae8b807 | 180 | .key_filter = eeepc_wmi_key_filter, |
e12e6d94 CC |
181 | .probe = eeepc_wmi_probe, |
182 | .quirks = eeepc_wmi_quirks, | |
183 | }; | |
184 | ||
185 | ||
186 | static int __init eeepc_wmi_init(void) | |
187 | { | |
188 | return asus_wmi_register_driver(&asus_wmi_driver); | |
189 | } | |
190 | ||
191 | static void __exit eeepc_wmi_exit(void) | |
192 | { | |
193 | asus_wmi_unregister_driver(&asus_wmi_driver); | |
194 | } | |
195 | ||
196 | module_init(eeepc_wmi_init); | |
197 | module_exit(eeepc_wmi_exit); |