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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 <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
59/* Values for T101MT "Home" key */
60#define HOME_PRESS 0xe4
61#define HOME_HOLD 0xea
62#define HOME_RELEASE 0xe5
63
64static 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 } },
71 { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */
72 { KE_KEY, 0x82, { KEY_CAMERA } },
73 { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
74 { KE_KEY, 0x88, { KEY_WLAN } },
75 { KE_KEY, 0xbd, { KEY_CAMERA } },
76 { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
77 { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
78 { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
79 { KE_KEY, HOME_PRESS, { KEY_CONFIG } }, /* Home/Express gate key */
80 { KE_KEY, 0xe8, { KEY_SCREENLOCK } },
81 { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
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 } },
87 { KE_END, 0},
88};
89
90static 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
109static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level,
110 void *context, void **retval)
111{
112 pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID);
113 *(bool *)context = true;
114 return AE_CTRL_TERMINATE;
115}
116
117static 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
130static int eeepc_wmi_probe(struct platform_device *pdev)
131{
132 if (eeepc_wmi_check_atkd()) {
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");
139 return -EBUSY;
140 }
141 return 0;
142}
143
144static 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
166static void eeepc_wmi_quirks(struct asus_wmi_driver *driver)
167{
168 driver->hotplug_wireless = hotplug_wireless;
169 driver->wapf = -1;
170 eeepc_dmi_check(driver);
171}
172
173static 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",
180 .key_filter = eeepc_wmi_key_filter,
181 .probe = eeepc_wmi_probe,
182 .quirks = eeepc_wmi_quirks,
183};
184
185
186static int __init eeepc_wmi_init(void)
187{
188 return asus_wmi_register_driver(&asus_wmi_driver);
189}
190
191static void __exit eeepc_wmi_exit(void)
192{
193 asus_wmi_unregister_driver(&asus_wmi_driver);
194}
195
196module_init(eeepc_wmi_init);
197module_exit(eeepc_wmi_exit);
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);