Corentin Chary | e12e6d9 | 2011-02-26 10:20:31 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Eee PC WMI hotkey driver |
| 3 | * |
| 4 | * Copyright(C) 2010 Intel Corporation. |
Corentin Chary | 57ab7da | 2011-02-26 10:20:32 +0100 | [diff] [blame] | 5 | * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com> |
Corentin Chary | e12e6d9 | 2011-02-26 10:20:31 +0100 | [diff] [blame] | 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 } }, |
Keng-Yu Lin | 3b3e73f | 2011-03-01 12:56:13 +0800 | [diff] [blame] | 66 | { KE_KEY, 0x6b, { KEY_TOUCHPAD_TOGGLE } }, /* Toggle Touchpad */ |
Corentin Chary | e12e6d9 | 2011-02-26 10:20:31 +0100 | [diff] [blame] | 67 | { KE_KEY, 0x82, { KEY_CAMERA } }, |
Corentin Chary | 5f85400 | 2011-02-26 10:20:43 +0100 | [diff] [blame] | 68 | { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } }, |
Corentin Chary | e12e6d9 | 2011-02-26 10:20:31 +0100 | [diff] [blame] | 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 } }, |
Corentin Chary | 5f85400 | 2011-02-26 10:20:43 +0100 | [diff] [blame] | 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 } }, |
Corentin Chary | e12e6d9 | 2011-02-26 10:20:31 +0100 | [diff] [blame] | 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); |