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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> | |
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 } }, |
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 = { |
108 | .scalar_panel_brightness = true, | |
6e0044be | 109 | .store_backlight_power = true, |
c87992d1 AK |
110 | }; |
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; |
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 acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level, |
208 | void *context, void **retval) | |
209 | { | |
22441ffe | 210 | pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID); |
e12e6d94 CC |
211 | *(bool *)context = true; |
212 | return AE_CTRL_TERMINATE; | |
213 | } | |
214 | ||
215 | static int eeepc_wmi_check_atkd(void) | |
216 | { | |
217 | acpi_status status; | |
218 | bool found = false; | |
219 | ||
220 | status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device, | |
221 | &found, NULL); | |
222 | ||
223 | if (ACPI_FAILURE(status) || !found) | |
224 | return 0; | |
225 | return -1; | |
226 | } | |
227 | ||
228 | static int eeepc_wmi_probe(struct platform_device *pdev) | |
229 | { | |
230 | if (eeepc_wmi_check_atkd()) { | |
22441ffe JP |
231 | pr_warn("WMI device present, but legacy ATKD device is also " |
232 | "present and enabled\n"); | |
233 | pr_warn("You probably booted with acpi_osi=\"Linux\" or " | |
234 | "acpi_osi=\"!Windows 2009\"\n"); | |
235 | pr_warn("Can't load eeepc-wmi, use default acpi_osi " | |
236 | "(preferred) or eeepc-laptop\n"); | |
e12e6d94 CC |
237 | return -EBUSY; |
238 | } | |
239 | return 0; | |
240 | } | |
241 | ||
e12e6d94 CC |
242 | static void eeepc_wmi_quirks(struct asus_wmi_driver *driver) |
243 | { | |
c55d995d CC |
244 | quirks = &quirk_asus_unknown; |
245 | quirks->hotplug_wireless = hotplug_wireless; | |
246 | ||
c87992d1 | 247 | dmi_check_system(asus_quirks); |
c55d995d | 248 | |
c87992d1 | 249 | driver->quirks = quirks; |
c55d995d CC |
250 | driver->quirks->wapf = -1; |
251 | driver->panel_power = FB_BLANK_UNBLANK; | |
e12e6d94 CC |
252 | } |
253 | ||
254 | static struct asus_wmi_driver asus_wmi_driver = { | |
255 | .name = EEEPC_WMI_FILE, | |
256 | .owner = THIS_MODULE, | |
257 | .event_guid = EEEPC_WMI_EVENT_GUID, | |
258 | .keymap = eeepc_wmi_keymap, | |
259 | .input_name = "Eee PC WMI hotkeys", | |
260 | .input_phys = EEEPC_WMI_FILE "/input0", | |
6ae8b807 | 261 | .key_filter = eeepc_wmi_key_filter, |
e12e6d94 | 262 | .probe = eeepc_wmi_probe, |
c87992d1 | 263 | .detect_quirks = eeepc_wmi_quirks, |
e12e6d94 CC |
264 | }; |
265 | ||
266 | ||
267 | static int __init eeepc_wmi_init(void) | |
268 | { | |
269 | return asus_wmi_register_driver(&asus_wmi_driver); | |
270 | } | |
271 | ||
272 | static void __exit eeepc_wmi_exit(void) | |
273 | { | |
274 | asus_wmi_unregister_driver(&asus_wmi_driver); | |
275 | } | |
276 | ||
277 | module_init(eeepc_wmi_init); | |
278 | module_exit(eeepc_wmi_exit); |