1d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger/* 2d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * MSI WMI hotkeys 3d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * 4d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * Copyright (C) 2009 Novell <trenn@suse.de> 5d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * 6d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * Most stuff taken over from hp-wmi 7d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * 8d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * This program is free software; you can redistribute it and/or modify 9d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * it under the terms of the GNU General Public License as published by 10d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * the Free Software Foundation; either version 2 of the License, or 11d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * (at your option) any later version. 12d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * 13d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * This program is distributed in the hope that it will be useful, 14d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * but WITHOUT ANY WARRANTY; without even the implied warranty of 15d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * GNU General Public License for more details. 17d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * 18d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * You should have received a copy of the GNU General Public License 19d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * along with this program; if not, write to the Free Software 20d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger */ 22d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 23dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 24d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 25d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#include <linux/kernel.h> 26d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#include <linux/input.h> 27c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier#include <linux/input/sparse-keymap.h> 28d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#include <linux/acpi.h> 29d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#include <linux/backlight.h> 305a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 317c52d55170ce84ddf9c0ad4e020ef1d7a97975a7Paul Gortmaker#include <linux/module.h> 32d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 33d12d8baff927a31b7e13b72ed9549be6f296a6efThomas RenningerMODULE_AUTHOR("Thomas Renninger <trenn@suse.de>"); 34d12d8baff927a31b7e13b72ed9549be6f296a6efThomas RenningerMODULE_DESCRIPTION("MSI laptop WMI hotkeys driver"); 35d12d8baff927a31b7e13b72ed9549be6f296a6efThomas RenningerMODULE_LICENSE("GPL"); 36d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 37d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#define DRV_NAME "msi-wmi" 38d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 39d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45" 40c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy#define MSIWMI_MSI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2" 41c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy#define MSIWMI_WIND_EVENT_GUID "5B3CC38A-40D9-7245-8AE6-1145B751BE3F" 42d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 43dd2b0251573f5d27ae58afee64256b647041382aMaxim MikityanskiyMODULE_ALIAS("wmi:" MSIWMI_BIOS_GUID); 44c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim MikityanskiyMODULE_ALIAS("wmi:" MSIWMI_MSI_EVENT_GUID); 45c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim MikityanskiyMODULE_ALIAS("wmi:" MSIWMI_WIND_EVENT_GUID); 46dd2b0251573f5d27ae58afee64256b647041382aMaxim Mikityanskiy 47b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiyenum msi_scancodes { 48c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy /* Generic MSI keys (not present on MSI Wind) */ 49fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy MSI_KEY_BRIGHTNESSUP = 0xD0, 50b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy MSI_KEY_BRIGHTNESSDOWN, 51b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy MSI_KEY_VOLUMEUP, 52b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy MSI_KEY_VOLUMEDOWN, 53b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy MSI_KEY_MUTE, 54c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy /* MSI Wind keys */ 55c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_TOUCHPAD = 0x08, /* Fn+F3 touchpad toggle */ 56c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_BLUETOOTH = 0x56, /* Fn+F11 Bluetooth toggle */ 57c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_CAMERA, /* Fn+F6 webcam toggle */ 58c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_WLAN = 0x5f, /* Fn+F11 Wi-Fi toggle */ 59c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_TURBO, /* Fn+F10 turbo mode toggle */ 60c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy WIND_KEY_ECO = 0x69, /* Fn+F10 ECO mode toggle */ 61b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy}; 62d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic struct key_entry msi_wmi_keymap[] = { 63b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_KEY, MSI_KEY_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} }, 64b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_KEY, MSI_KEY_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} }, 65b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_KEY, MSI_KEY_VOLUMEUP, {KEY_VOLUMEUP} }, 66b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_KEY, MSI_KEY_VOLUMEDOWN, {KEY_VOLUMEDOWN} }, 67b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_KEY, MSI_KEY_MUTE, {KEY_MUTE} }, 68c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy 69c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy /* These keys work without WMI. Ignore them to avoid double keycodes */ 70c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, WIND_KEY_TOUCHPAD, {KEY_TOUCHPAD_TOGGLE} }, 71c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, WIND_KEY_BLUETOOTH, {KEY_BLUETOOTH} }, 72c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, WIND_KEY_CAMERA, {KEY_CAMERA} }, 73c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, WIND_KEY_WLAN, {KEY_WLAN} }, 74c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy 75c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy /* These are unknown WMI events found on MSI Wind */ 76c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, 0x00 }, 77c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, 0x62 }, 78c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_IGNORE, 0x63 }, 79c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy 80c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy /* These are MSI Wind keys that should be handled via WMI */ 81c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_KEY, WIND_KEY_TURBO, {KEY_PROG1} }, 82c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { KE_KEY, WIND_KEY_ECO, {KEY_PROG2} }, 83c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy 84b0d3bb53beaba866ce80424fb512b1669ed88da0Maxim Mikityanskiy { KE_END, 0 } 85d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger}; 86fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy 87fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiystatic ktime_t last_pressed; 88d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 89c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiystatic const struct { 90c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy const char *guid; 91c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy bool quirk_last_pressed; 92c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy} *event_wmi, event_wmis[] = { 93c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { MSIWMI_MSI_EVENT_GUID, true }, 94c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy { MSIWMI_WIND_EVENT_GUID, false }, 95c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy}; 96da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 978700e1612e19f752be507f7fdcd8b48ba1b425eeAxel Linstatic struct backlight_device *backlight; 98d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 99d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int backlight_map[] = { 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF }; 100d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 101d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic struct input_dev *msi_wmi_input_dev; 102d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 103d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int msi_wmi_query_block(int instance, int *ret) 104d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 105d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger acpi_status status; 106d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger union acpi_object *obj; 107d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 108d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 109d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 110d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger status = wmi_query_block(MSIWMI_BIOS_GUID, instance, &output); 111d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 112d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger obj = output.pointer; 113d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 114d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (!obj || obj->type != ACPI_TYPE_INTEGER) { 115d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (obj) { 116dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_err("query block returned object " 117d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger "type: %d - buffer length:%d\n", obj->type, 118d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger obj->type == ACPI_TYPE_BUFFER ? 119d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger obj->buffer.length : 0); 120d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 121d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger kfree(obj); 122d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return -EINVAL; 123d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 124d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger *ret = obj->integer.value; 125d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger kfree(obj); 126d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return 0; 127d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 128d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 129d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int msi_wmi_set_block(int instance, int value) 130d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 131d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger acpi_status status; 132d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 133d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger struct acpi_buffer input = { sizeof(int), &value }; 134d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 135dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_debug("Going to set block of instance: %d - value: %d\n", 136dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches instance, value); 137d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 138d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger status = wmi_set_block(MSIWMI_BIOS_GUID, instance, &input); 139d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 140d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return ACPI_SUCCESS(status) ? 0 : 1; 141d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 142d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 143d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int bl_get(struct backlight_device *bd) 144d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 145de078e5747fa3a95efac04fd6725dcceb4520416Anisse Astier int level, err, ret; 146d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 147d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger /* Instance 1 is "get backlight", cmp with DSDT */ 148d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger err = msi_wmi_query_block(1, &ret); 149de078e5747fa3a95efac04fd6725dcceb4520416Anisse Astier if (err) { 150dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_err("Could not query backlight: %d\n", err); 151de078e5747fa3a95efac04fd6725dcceb4520416Anisse Astier return -EINVAL; 152de078e5747fa3a95efac04fd6725dcceb4520416Anisse Astier } 153dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_debug("Get: Query block returned: %d\n", ret); 154d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger for (level = 0; level < ARRAY_SIZE(backlight_map); level++) { 155d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (backlight_map[level] == ret) { 156dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_debug("Current backlight level: 0x%X - index: %d\n", 157dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches backlight_map[level], level); 158d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger break; 159d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 160d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 161d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (level == ARRAY_SIZE(backlight_map)) { 162dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_err("get: Invalid brightness value: 0x%X\n", ret); 163d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return -EINVAL; 164d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 165d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return level; 166d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 167d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 168d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int bl_set_status(struct backlight_device *bd) 169d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 170d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger int bright = bd->props.brightness; 171d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (bright >= ARRAY_SIZE(backlight_map) || bright < 0) 172d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return -EINVAL; 173d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 174d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger /* Instance 0 is "set backlight" */ 175d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return msi_wmi_set_block(0, backlight_map[bright]); 176d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 177d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 17828d85873cd6d8d3176e30e02b941b1329df1024cBruno Prémontstatic const struct backlight_ops msi_backlight_ops = { 179d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger .get_brightness = bl_get, 180d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger .update_status = bl_set_status, 181d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger}; 182d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 183d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic void msi_wmi_notify(u32 value, void *context) 184d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 185d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; 186d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger static struct key_entry *key; 187d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger union acpi_object *obj; 188fda11e61ff8a4e3a8ebbd434e46560b67cc0ca9dLen Brown acpi_status status; 189d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 190fda11e61ff8a4e3a8ebbd434e46560b67cc0ca9dLen Brown status = wmi_get_event_data(value, &response); 191fda11e61ff8a4e3a8ebbd434e46560b67cc0ca9dLen Brown if (status != AE_OK) { 192dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_info("bad event status 0x%x\n", status); 193fda11e61ff8a4e3a8ebbd434e46560b67cc0ca9dLen Brown return; 194fda11e61ff8a4e3a8ebbd434e46560b67cc0ca9dLen Brown } 195d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 196d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger obj = (union acpi_object *)response.pointer; 197d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 198d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger if (obj && obj->type == ACPI_TYPE_INTEGER) { 199d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger int eventcode = obj->integer.value; 200dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_debug("Eventcode: 0x%x\n", eventcode); 201c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev, 202c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier eventcode); 203fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy if (!key) { 204fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy pr_info("Unknown key pressed - %x\n", eventcode); 205fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy goto msi_wmi_notify_exit; 206fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy } 207fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy 208c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (event_wmi->quirk_last_pressed) { 209fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy ktime_t cur = ktime_get_real(); 210fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy ktime_t diff = ktime_sub(cur, last_pressed); 211fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy /* Ignore event if any event happened in a 50 ms 212d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger timeframe -> Key press may result in 10-20 GPEs */ 213c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier if (ktime_to_us(diff) < 1000 * 50) { 214dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_debug("Suppressed key event 0x%X - " 215dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches "Last press was %lld us ago\n", 216c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier key->code, ktime_to_us(diff)); 21751c94491c82c3d9029f6e87a1a153db321d88e35Maxim Mikityanskiy goto msi_wmi_notify_exit; 218d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 219fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy last_pressed = cur; 220fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy } 221fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy 222fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy if (key->type == KE_KEY && 223fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy /* Brightness is served via acpi video driver */ 224fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy (backlight || 225fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy (key->code != MSI_KEY_BRIGHTNESSUP && 226fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy key->code != MSI_KEY_BRIGHTNESSDOWN))) { 227fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy pr_debug("Send key: 0x%X - Input layer keycode: %d\n", 228fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy key->code, key->keycode); 229fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy sparse_keymap_report_entry(msi_wmi_input_dev, key, 1, 230fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy true); 231fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy } 232d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } else 233dd3c7f2308e91d6ecbe5cd8a3310bb49e47e1ae7Joe Perches pr_info("Unknown event received\n"); 23451c94491c82c3d9029f6e87a1a153db321d88e35Maxim Mikityanskiy 23551c94491c82c3d9029f6e87a1a153db321d88e35Maxim Mikityanskiymsi_wmi_notify_exit: 236d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger kfree(response.pointer); 237d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 238d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 239da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiystatic int __init msi_wmi_backlight_setup(void) 240da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy{ 241da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy int err; 242da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy struct backlight_properties props; 243da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 244da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy memset(&props, 0, sizeof(struct backlight_properties)); 245da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy props.type = BACKLIGHT_PLATFORM; 246da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy props.max_brightness = ARRAY_SIZE(backlight_map) - 1; 247da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy backlight = backlight_device_register(DRV_NAME, NULL, NULL, 248da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy &msi_backlight_ops, 249da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy &props); 250da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (IS_ERR(backlight)) 251da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy return PTR_ERR(backlight); 252da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 253da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy err = bl_get(NULL); 254da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (err < 0) { 255da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy backlight_device_unregister(backlight); 256da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy return err; 257da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 258da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 259da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy backlight->props.brightness = err; 260da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 261da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy return 0; 262da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy} 263da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 264d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int __init msi_wmi_input_setup(void) 265d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 266d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger int err; 267d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 268d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger msi_wmi_input_dev = input_allocate_device(); 26946b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier if (!msi_wmi_input_dev) 27046b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier return -ENOMEM; 271d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 272d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger msi_wmi_input_dev->name = "MSI WMI hotkeys"; 273d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger msi_wmi_input_dev->phys = "wmi/input0"; 274d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger msi_wmi_input_dev->id.bustype = BUS_HOST; 275c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier 276c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier err = sparse_keymap_setup(msi_wmi_input_dev, msi_wmi_keymap, NULL); 277c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier if (err) 278c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier goto err_free_dev; 279d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 280d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger err = input_register_device(msi_wmi_input_dev); 281d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 282c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier if (err) 283c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier goto err_free_keymap; 284c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier 285fedda8e7385f5fb01acb8897beca90b6256fc7bdMaxim Mikityanskiy last_pressed = ktime_set(0, 0); 286d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 287d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return 0; 288c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier 289c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astiererr_free_keymap: 290c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier sparse_keymap_free(msi_wmi_input_dev); 291c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astiererr_free_dev: 292c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier input_free_device(msi_wmi_input_dev); 293c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier return err; 294d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 295d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 296d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic int __init msi_wmi_init(void) 297d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 298d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger int err; 299c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy int i; 300c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy 301c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy for (i = 0; i < ARRAY_SIZE(event_wmis); i++) { 302c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (!wmi_has_guid(event_wmis[i].guid)) 303c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy continue; 304d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 305da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy err = msi_wmi_input_setup(); 306da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (err) { 307da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_err("Unable to setup input device\n"); 308da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy return err; 309da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 310d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 311c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy err = wmi_install_notify_handler(event_wmis[i].guid, 312da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy msi_wmi_notify, NULL); 313da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (ACPI_FAILURE(err)) { 314da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_err("Unable to setup WMI notify handler\n"); 31546b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier goto err_free_input; 31628d85873cd6d8d3176e30e02b941b1329df1024cBruno Prémont } 31746b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier 318da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_debug("Event handler installed\n"); 319c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy event_wmi = &event_wmis[i]; 320c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy break; 321da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 322da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy 323da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (wmi_has_guid(MSIWMI_BIOS_GUID) && !acpi_video_backlight_support()) { 324da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy err = msi_wmi_backlight_setup(); 325da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (err) { 326da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_err("Unable to setup backlight device\n"); 327da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy goto err_uninstall_handler; 328da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 329da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_debug("Backlight device created\n"); 330da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 33146b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier 332c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (!event_wmi && !backlight) { 333da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy pr_err("This machine doesn't have neither MSI-hotkeys nor backlight through WMI\n"); 334da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy return -ENODEV; 335d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 33646b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier 337d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger return 0; 33846b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier 339da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiyerr_uninstall_handler: 340c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (event_wmi) 341c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy wmi_remove_notify_handler(event_wmi->guid); 34246b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astiererr_free_input: 343c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (event_wmi) { 344da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy sparse_keymap_free(msi_wmi_input_dev); 345da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy input_unregister_device(msi_wmi_input_dev); 346da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy } 34746b51eb9e14afb3bde4bc2fe3bbc22ce012647d4Anisse Astier return err; 348d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 349d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 350d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningerstatic void __exit msi_wmi_exit(void) 351d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger{ 352c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy if (event_wmi) { 353c11ac2aa520b4777e5b063f8d8e99ce00337dcd9Maxim Mikityanskiy wmi_remove_notify_handler(event_wmi->guid); 354c30116c6f0d26cd6e46dfa578163d573ef4730b2Anisse Astier sparse_keymap_free(msi_wmi_input_dev); 355d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger input_unregister_device(msi_wmi_input_dev); 356d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger } 357da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy if (backlight) 358da8506288fc4b2cc62d0ba477c2fe2a16f8891b0Maxim Mikityanskiy backlight_device_unregister(backlight); 359d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger} 360d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renninger 361d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningermodule_init(msi_wmi_init); 362d12d8baff927a31b7e13b72ed9549be6f296a6efThomas Renningermodule_exit(msi_wmi_exit); 363