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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Eee PC WMI hotkey driver
4 *
5 * Copyright(C) 2010 Intel Corporation.
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
7 *
8 * Portions based on wistron_btns.c:
9 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
10 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
11 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/input.h>
20#include <linux/input/sparse-keymap.h>
21#include <linux/dmi.h>
22#include <linux/fb.h>
23#include <linux/acpi.h>
24
25#include "asus-wmi.h"
26
27#define EEEPC_WMI_FILE "eeepc-wmi"
28
29MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
30MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
31MODULE_LICENSE("GPL");
32
33#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
34
35#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
36
37MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
38
39static bool hotplug_wireless;
40
41module_param(hotplug_wireless, bool, 0444);
42MODULE_PARM_DESC(hotplug_wireless,
43 "Enable hotplug for wireless device. "
44 "If your laptop needs that, please report to "
45 "acpi4asus-user@lists.sourceforge.net.");
46
47/* Values for T101MT "Home" key */
48#define HOME_PRESS 0xe4
49#define HOME_HOLD 0xea
50#define HOME_RELEASE 0xe5
51
52static const struct key_entry eeepc_wmi_keymap[] = {
53 { KE_KEY, ASUS_WMI_BRN_DOWN, { KEY_BRIGHTNESSDOWN } },
54 { KE_KEY, ASUS_WMI_BRN_UP, { KEY_BRIGHTNESSUP } },
55 /* Sleep already handled via generic ACPI code */
56 { KE_KEY, 0x30, { KEY_VOLUMEUP } },
57 { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
58 { KE_KEY, 0x32, { KEY_MUTE } },
59 { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
60 { KE_KEY, 0x5d, { KEY_WLAN } },
61 { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
62 { KE_KEY, 0x82, { KEY_CAMERA } },
63 { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
64 { KE_KEY, 0x88, { KEY_WLAN } },
65 { KE_KEY, 0xbd, { KEY_CAMERA } },
66 { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
67 { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
68 { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
69 { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
70 { KE_KEY, 0xe8, { KEY_SCREENLOCK } },
71 { KE_KEY, 0xe9, { KEY_DISPLAYTOGGLE } },
72 { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
73 { KE_KEY, 0xec, { KEY_CAMERA_UP } },
74 { KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
75 { KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
76 { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
77 { KE_KEY, 0xf3, { KEY_MENU } },
78 { KE_KEY, 0xf5, { KEY_HOMEPAGE } },
79 { KE_KEY, 0xf6, { KEY_ESC } },
80 { KE_END, 0},
81};
82
83static struct quirk_entry quirk_asus_unknown = {
84};
85
86static struct quirk_entry quirk_asus_1000h = {
87 .hotplug_wireless = true,
88};
89
90static struct quirk_entry quirk_asus_et2012_type1 = {
91 .store_backlight_power = true,
92};
93
94static struct quirk_entry quirk_asus_et2012_type3 = {
95 .scalar_panel_brightness = true,
96 .store_backlight_power = true,
97};
98
99static struct quirk_entry *quirks;
100
101static void et2012_quirks(void)
102{
103 const struct dmi_device *dev = NULL;
104 char oemstring[30];
105
106 while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
107 if (sscanf(dev->name, "AEMS%24c", oemstring) == 1) {
108 if (oemstring[18] == '1')
109 quirks = &quirk_asus_et2012_type1;
110 else if (oemstring[18] == '3')
111 quirks = &quirk_asus_et2012_type3;
112 break;
113 }
114 }
115}
116
117static int dmi_matched(const struct dmi_system_id *dmi)
118{
119 char *model;
120
121 quirks = dmi->driver_data;
122
123 model = (char *)dmi->matches[1].substr;
124 if (unlikely(strncmp(model, "ET2012", 6) == 0))
125 et2012_quirks();
126
127 return 1;
128}
129
130static const struct dmi_system_id asus_quirks[] = {
131 {
132 .callback = dmi_matched,
133 .ident = "ASUSTeK Computer INC. 1000H",
134 .matches = {
135 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
136 DMI_MATCH(DMI_PRODUCT_NAME, "1000H"),
137 },
138 .driver_data = &quirk_asus_1000h,
139 },
140 {
141 .callback = dmi_matched,
142 .ident = "ASUSTeK Computer INC. ET2012E/I",
143 .matches = {
144 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
145 DMI_MATCH(DMI_PRODUCT_NAME, "ET2012"),
146 },
147 .driver_data = &quirk_asus_unknown,
148 },
149 {}
150};
151
152static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
153 unsigned int *value, bool *autorelease)
154{
155 switch (*code) {
156 case HOME_PRESS:
157 *value = 1;
158 *autorelease = 0;
159 break;
160 case HOME_HOLD:
161 *code = ASUS_WMI_KEY_IGNORE;
162 break;
163 case HOME_RELEASE:
164 *code = HOME_PRESS;
165 *value = 0;
166 *autorelease = 0;
167 break;
168 }
169}
170
171static int eeepc_wmi_probe(struct platform_device *pdev)
172{
173 if (acpi_dev_found(EEEPC_ACPI_HID)) {
174 pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
175 pr_warn("WMI device present, but legacy ATKD device is also "
176 "present and enabled\n");
177 pr_warn("You probably booted with acpi_osi=\"Linux\" or "
178 "acpi_osi=\"!Windows 2009\"\n");
179 pr_warn("Can't load eeepc-wmi, use default acpi_osi "
180 "(preferred) or eeepc-laptop\n");
181 return -EBUSY;
182 }
183 return 0;
184}
185
186static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
187{
188 quirks = &quirk_asus_unknown;
189 quirks->hotplug_wireless = hotplug_wireless;
190
191 dmi_check_system(asus_quirks);
192
193 driver->quirks = quirks;
194 driver->quirks->wapf = -1;
195 driver->panel_power = FB_BLANK_UNBLANK;
196}
197
198static struct asus_wmi_driver asus_wmi_driver = {
199 .name = EEEPC_WMI_FILE,
200 .owner = THIS_MODULE,
201 .event_guid = EEEPC_WMI_EVENT_GUID,
202 .keymap = eeepc_wmi_keymap,
203 .input_name = "Eee PC WMI hotkeys",
204 .input_phys = EEEPC_WMI_FILE "/input0",
205 .key_filter = eeepc_wmi_key_filter,
206 .probe = eeepc_wmi_probe,
207 .detect_quirks = eeepc_wmi_quirks,
208};
209
210
211static int __init eeepc_wmi_init(void)
212{
213 return asus_wmi_register_driver(&asus_wmi_driver);
214}
215
216static void __exit eeepc_wmi_exit(void)
217{
218 asus_wmi_unregister_driver(&asus_wmi_driver);
219}
220
221module_init(eeepc_wmi_init);
222module_exit(eeepc_wmi_exit);
1/*
2 * Eee 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#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 <linux/fb.h>
36#include <acpi/acpi_bus.h>
37
38#include "asus-wmi.h"
39
40#define EEEPC_WMI_FILE "eeepc-wmi"
41
42MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>");
43MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
44MODULE_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
50MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
51
52static bool hotplug_wireless;
53
54module_param(hotplug_wireless, bool, 0444);
55MODULE_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
60/* Values for T101MT "Home" key */
61#define HOME_PRESS 0xe4
62#define HOME_HOLD 0xea
63#define HOME_RELEASE 0xe5
64
65static const struct key_entry eeepc_wmi_keymap[] = {
66 /* Sleep already handled via generic ACPI code */
67 { KE_KEY, 0x30, { KEY_VOLUMEUP } },
68 { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
69 { KE_KEY, 0x32, { KEY_MUTE } },
70 { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
71 { KE_KEY, 0x5d, { KEY_WLAN } },
72 { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
73 { KE_KEY, 0x82, { KEY_CAMERA } },
74 { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
75 { KE_KEY, 0x88, { KEY_WLAN } },
76 { KE_KEY, 0xbd, { KEY_CAMERA } },
77 { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
78 { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
79 { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
80 { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
81 { KE_KEY, 0xe8, { KEY_SCREENLOCK } },
82 { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
83 { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
84 { KE_KEY, 0xec, { KEY_CAMERA_UP } },
85 { KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
86 { KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
87 { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
88 { KE_KEY, 0xf3, { KEY_MENU } },
89 { KE_KEY, 0xf5, { KEY_HOMEPAGE } },
90 { KE_KEY, 0xf6, { KEY_ESC } },
91 { KE_END, 0},
92};
93
94static struct quirk_entry quirk_asus_unknown = {
95};
96
97static struct quirk_entry quirk_asus_1000h = {
98 .hotplug_wireless = true,
99};
100
101static struct quirk_entry quirk_asus_et2012_type1 = {
102 .store_backlight_power = true,
103};
104
105static struct quirk_entry quirk_asus_et2012_type3 = {
106 .scalar_panel_brightness = true,
107 .store_backlight_power = true,
108};
109
110static struct quirk_entry *quirks;
111
112static void et2012_quirks(void)
113{
114 const struct dmi_device *dev = NULL;
115 char oemstring[30];
116
117 while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
118 if (sscanf(dev->name, "AEMS%24c", oemstring) == 1) {
119 if (oemstring[18] == '1')
120 quirks = &quirk_asus_et2012_type1;
121 else if (oemstring[18] == '3')
122 quirks = &quirk_asus_et2012_type3;
123 break;
124 }
125 }
126}
127
128static int dmi_matched(const struct dmi_system_id *dmi)
129{
130 char *model;
131
132 quirks = dmi->driver_data;
133
134 model = (char *)dmi->matches[1].substr;
135 if (unlikely(strncmp(model, "ET2012", 6) == 0))
136 et2012_quirks();
137
138 return 1;
139}
140
141static struct dmi_system_id asus_quirks[] = {
142 {
143 .callback = dmi_matched,
144 .ident = "ASUSTeK Computer INC. 1000H",
145 .matches = {
146 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
147 DMI_MATCH(DMI_PRODUCT_NAME, "1000H"),
148 },
149 .driver_data = &quirk_asus_1000h,
150 },
151 {
152 .callback = dmi_matched,
153 .ident = "ASUSTeK Computer INC. ET2012E/I",
154 .matches = {
155 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
156 DMI_MATCH(DMI_PRODUCT_NAME, "ET2012"),
157 },
158 .driver_data = &quirk_asus_unknown,
159 },
160 {},
161};
162
163static void eeepc_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
164 unsigned int *value, bool *autorelease)
165{
166 switch (*code) {
167 case HOME_PRESS:
168 *value = 1;
169 *autorelease = 0;
170 break;
171 case HOME_HOLD:
172 *code = ASUS_WMI_KEY_IGNORE;
173 break;
174 case HOME_RELEASE:
175 *code = HOME_PRESS;
176 *value = 0;
177 *autorelease = 0;
178 break;
179 }
180}
181
182static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level,
183 void *context, void **retval)
184{
185 pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
186 *(bool *)context = true;
187 return AE_CTRL_TERMINATE;
188}
189
190static int eeepc_wmi_check_atkd(void)
191{
192 acpi_status status;
193 bool found = false;
194
195 status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device,
196 &found, NULL);
197
198 if (ACPI_FAILURE(status) || !found)
199 return 0;
200 return -1;
201}
202
203static int eeepc_wmi_probe(struct platform_device *pdev)
204{
205 if (eeepc_wmi_check_atkd()) {
206 pr_warn("WMI device present, but legacy ATKD device is also "
207 "present and enabled\n");
208 pr_warn("You probably booted with acpi_osi=\"Linux\" or "
209 "acpi_osi=\"!Windows 2009\"\n");
210 pr_warn("Can't load eeepc-wmi, use default acpi_osi "
211 "(preferred) or eeepc-laptop\n");
212 return -EBUSY;
213 }
214 return 0;
215}
216
217static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
218{
219 quirks = &quirk_asus_unknown;
220 quirks->hotplug_wireless = hotplug_wireless;
221
222 dmi_check_system(asus_quirks);
223
224 driver->quirks = quirks;
225 driver->quirks->wapf = -1;
226 driver->panel_power = FB_BLANK_UNBLANK;
227}
228
229static struct asus_wmi_driver asus_wmi_driver = {
230 .name = EEEPC_WMI_FILE,
231 .owner = THIS_MODULE,
232 .event_guid = EEEPC_WMI_EVENT_GUID,
233 .keymap = eeepc_wmi_keymap,
234 .input_name = "Eee PC WMI hotkeys",
235 .input_phys = EEEPC_WMI_FILE "/input0",
236 .key_filter = eeepc_wmi_key_filter,
237 .probe = eeepc_wmi_probe,
238 .detect_quirks = eeepc_wmi_quirks,
239};
240
241
242static int __init eeepc_wmi_init(void)
243{
244 return asus_wmi_register_driver(&asus_wmi_driver);
245}
246
247static void __exit eeepc_wmi_exit(void)
248{
249 asus_wmi_unregister_driver(&asus_wmi_driver);
250}
251
252module_init(eeepc_wmi_init);
253module_exit(eeepc_wmi_exit);