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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> |
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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 | ||
59 | static 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 } }, | |
66 | { KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */ | |
67 | { KE_KEY, 0x82, { KEY_CAMERA } }, | |
5f854009 | 68 | { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } }, |
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69 | { KE_KEY, 0x88, { KEY_WLAN } }, |
70 | { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } }, | |
71 | { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */ | |
72 | { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */ | |
73 | { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } }, | |
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74 | { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } }, |
75 | { KE_KEY, 0xec, { KEY_CAMERA_UP } }, | |
76 | { KE_KEY, 0xed, { KEY_CAMERA_DOWN } }, | |
77 | { KE_KEY, 0xee, { KEY_CAMERA_LEFT } }, | |
78 | { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } }, | |
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79 | { KE_END, 0}, |
80 | }; | |
81 | ||
82 | static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level, | |
83 | void *context, void **retval) | |
84 | { | |
85 | pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID); | |
86 | *(bool *)context = true; | |
87 | return AE_CTRL_TERMINATE; | |
88 | } | |
89 | ||
90 | static int eeepc_wmi_check_atkd(void) | |
91 | { | |
92 | acpi_status status; | |
93 | bool found = false; | |
94 | ||
95 | status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device, | |
96 | &found, NULL); | |
97 | ||
98 | if (ACPI_FAILURE(status) || !found) | |
99 | return 0; | |
100 | return -1; | |
101 | } | |
102 | ||
103 | static int eeepc_wmi_probe(struct platform_device *pdev) | |
104 | { | |
105 | if (eeepc_wmi_check_atkd()) { | |
106 | pr_warning("WMI device present, but legacy ATKD device is also " | |
107 | "present and enabled."); | |
108 | pr_warning("You probably booted with acpi_osi=\"Linux\" or " | |
109 | "acpi_osi=\"!Windows 2009\""); | |
110 | pr_warning("Can't load eeepc-wmi, use default acpi_osi " | |
111 | "(preferred) or eeepc-laptop"); | |
112 | return -EBUSY; | |
113 | } | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static void eeepc_dmi_check(struct asus_wmi_driver *driver) | |
118 | { | |
119 | const char *model; | |
120 | ||
121 | model = dmi_get_system_info(DMI_PRODUCT_NAME); | |
122 | if (!model) | |
123 | return; | |
124 | ||
125 | /* | |
126 | * Whitelist for wlan hotplug | |
127 | * | |
128 | * Asus 1000H needs the current hotplug code to handle | |
129 | * Fn+F2 correctly. We may add other Asus here later, but | |
130 | * it seems that most of the laptops supported by asus-wmi | |
131 | * don't need to be on this list | |
132 | */ | |
133 | if (strcmp(model, "1000H") == 0) { | |
134 | driver->hotplug_wireless = true; | |
135 | pr_info("wlan hotplug enabled\n"); | |
136 | } | |
137 | } | |
138 | ||
139 | static void eeepc_wmi_quirks(struct asus_wmi_driver *driver) | |
140 | { | |
141 | driver->hotplug_wireless = hotplug_wireless; | |
142 | eeepc_dmi_check(driver); | |
143 | } | |
144 | ||
145 | static struct asus_wmi_driver asus_wmi_driver = { | |
146 | .name = EEEPC_WMI_FILE, | |
147 | .owner = THIS_MODULE, | |
148 | .event_guid = EEEPC_WMI_EVENT_GUID, | |
149 | .keymap = eeepc_wmi_keymap, | |
150 | .input_name = "Eee PC WMI hotkeys", | |
151 | .input_phys = EEEPC_WMI_FILE "/input0", | |
152 | .probe = eeepc_wmi_probe, | |
153 | .quirks = eeepc_wmi_quirks, | |
154 | }; | |
155 | ||
156 | ||
157 | static int __init eeepc_wmi_init(void) | |
158 | { | |
159 | return asus_wmi_register_driver(&asus_wmi_driver); | |
160 | } | |
161 | ||
162 | static void __exit eeepc_wmi_exit(void) | |
163 | { | |
164 | asus_wmi_unregister_driver(&asus_wmi_driver); | |
165 | } | |
166 | ||
167 | module_init(eeepc_wmi_init); | |
168 | module_exit(eeepc_wmi_exit); |