mirror of https://gitee.com/openkylin/linux.git
Merge branch 'msi-wmi' into release
This commit is contained in:
Len Brown
commit
7d8c220605
|
|
@ -367,6 +367,18 @@ config ACPI_WMI
|
|||
It is safe to enable this driver even if your DSDT doesn't define
|
||||
any ACPI-WMI devices.
|
||||
|
||||
config MSI_WMI
|
||||
tristate "MSI WMI extras"
|
||||
depends on ACPI_WMI
|
||||
depends on INPUT
|
||||
depends on BACKLIGHT_CLASS_DEVICE
|
||||
select INPUT_SPARSEKMAP
|
||||
help
|
||||
Say Y here if you want to support WMI-based hotkeys on MSI laptops.
|
||||
|
||||
To compile this driver as a module, choose M here: the module will
|
||||
be called msi-wmi.
|
||||
|
||||
config ACPI_ASUS
|
||||
tristate "ASUS/Medion Laptop Extras (DEPRECATED)"
|
||||
depends on ACPI
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@ obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
|
|||
obj-$(CONFIG_PANASONIC_LAPTOP) += panasonic-laptop.o
|
||||
obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o
|
||||
obj-$(CONFIG_ACPI_WMI) += wmi.o
|
||||
obj-$(CONFIG_MSI_WMI) += msi-wmi.o
|
||||
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
|
||||
obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
|
||||
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,293 @@
|
|||
/*
|
||||
* MSI WMI hotkeys
|
||||
*
|
||||
* Copyright (C) 2009 Novell <trenn@suse.de>
|
||||
*
|
||||
* Most stuff taken over from hp-wmi
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/input/sparse-keymap.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/backlight.h>
|
||||
|
||||
MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
|
||||
MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
|
||||
MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
|
||||
|
||||
/* Temporary workaround until the WMI sysfs interface goes in
|
||||
{ "svn", DMI_SYS_VENDOR },
|
||||
{ "pn", DMI_PRODUCT_NAME },
|
||||
{ "pvr", DMI_PRODUCT_VERSION },
|
||||
{ "rvn", DMI_BOARD_VENDOR },
|
||||
{ "rn", DMI_BOARD_NAME },
|
||||
*/
|
||||
|
||||
MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*");
|
||||
|
||||
#define DRV_NAME "msi-wmi"
|
||||
#define DRV_PFX DRV_NAME ": "
|
||||
|
||||
#define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45"
|
||||
#define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"
|
||||
|
||||
#define dprintk(msg...) pr_debug(DRV_PFX msg)
|
||||
|
||||
#define KEYCODE_BASE 0xD0
|
||||
#define MSI_WMI_BRIGHTNESSUP KEYCODE_BASE
|
||||
#define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1)
|
||||
#define MSI_WMI_VOLUMEUP (KEYCODE_BASE + 2)
|
||||
#define MSI_WMI_VOLUMEDOWN (KEYCODE_BASE + 3)
|
||||
static struct key_entry msi_wmi_keymap[] = {
|
||||
{ KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} },
|
||||
{ KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} },
|
||||
{ KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} },
|
||||
{ KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} },
|
||||
{ KE_END, 0}
|
||||
};
|
||||
static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1];
|
||||
|
||||
struct backlight_device *backlight;
|
||||
|
||||
static int backlight_map[] = { 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF };
|
||||
|
||||
static struct input_dev *msi_wmi_input_dev;
|
||||
|
||||
static int msi_wmi_query_block(int instance, int *ret)
|
||||
{
|
||||
acpi_status status;
|
||||
union acpi_object *obj;
|
||||
|
||||
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
|
||||
|
||||
status = wmi_query_block(MSIWMI_BIOS_GUID, instance, &output);
|
||||
|
||||
obj = output.pointer;
|
||||
|
||||
if (!obj || obj->type != ACPI_TYPE_INTEGER) {
|
||||
if (obj) {
|
||||
printk(KERN_ERR DRV_PFX "query block returned object "
|
||||
"type: %d - buffer length:%d\n", obj->type,
|
||||
obj->type == ACPI_TYPE_BUFFER ?
|
||||
obj->buffer.length : 0);
|
||||
}
|
||||
kfree(obj);
|
||||
return -EINVAL;
|
||||
}
|
||||
*ret = obj->integer.value;
|
||||
kfree(obj);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int msi_wmi_set_block(int instance, int value)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
struct acpi_buffer input = { sizeof(int), &value };
|
||||
|
||||
dprintk("Going to set block of instance: %d - value: %d\n",
|
||||
instance, value);
|
||||
|
||||
status = wmi_set_block(MSIWMI_BIOS_GUID, instance, &input);
|
||||
|
||||
return ACPI_SUCCESS(status) ? 0 : 1;
|
||||
}
|
||||
|
||||
static int bl_get(struct backlight_device *bd)
|
||||
{
|
||||
int level, err, ret;
|
||||
|
||||
/* Instance 1 is "get backlight", cmp with DSDT */
|
||||
err = msi_wmi_query_block(1, &ret);
|
||||
if (err) {
|
||||
printk(KERN_ERR DRV_PFX "Could not query backlight: %d\n", err);
|
||||
return -EINVAL;
|
||||
}
|
||||
dprintk("Get: Query block returned: %d\n", ret);
|
||||
for (level = 0; level < ARRAY_SIZE(backlight_map); level++) {
|
||||
if (backlight_map[level] == ret) {
|
||||
dprintk("Current backlight level: 0x%X - index: %d\n",
|
||||
backlight_map[level], level);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (level == ARRAY_SIZE(backlight_map)) {
|
||||
printk(KERN_ERR DRV_PFX "get: Invalid brightness value: 0x%X\n",
|
||||
ret);
|
||||
return -EINVAL;
|
||||
}
|
||||
return level;
|
||||
}
|
||||
|
||||
static int bl_set_status(struct backlight_device *bd)
|
||||
{
|
||||
int bright = bd->props.brightness;
|
||||
if (bright >= ARRAY_SIZE(backlight_map) || bright < 0)
|
||||
return -EINVAL;
|
||||
|
||||
/* Instance 0 is "set backlight" */
|
||||
return msi_wmi_set_block(0, backlight_map[bright]);
|
||||
}
|
||||
|
||||
static struct backlight_ops msi_backlight_ops = {
|
||||
.get_brightness = bl_get,
|
||||
.update_status = bl_set_status,
|
||||
};
|
||||
|
||||
static void msi_wmi_notify(u32 value, void *context)
|
||||
{
|
||||
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
|
||||
static struct key_entry *key;
|
||||
union acpi_object *obj;
|
||||
ktime_t cur;
|
||||
|
||||
wmi_get_event_data(value, &response);
|
||||
|
||||
obj = (union acpi_object *)response.pointer;
|
||||
|
||||
if (obj && obj->type == ACPI_TYPE_INTEGER) {
|
||||
int eventcode = obj->integer.value;
|
||||
dprintk("Eventcode: 0x%x\n", eventcode);
|
||||
key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev,
|
||||
eventcode);
|
||||
if (key) {
|
||||
ktime_t diff;
|
||||
cur = ktime_get_real();
|
||||
diff = ktime_sub(cur, last_pressed[key->code -
|
||||
KEYCODE_BASE]);
|
||||
/* Ignore event if the same event happened in a 50 ms
|
||||
timeframe -> Key press may result in 10-20 GPEs */
|
||||
if (ktime_to_us(diff) < 1000 * 50) {
|
||||
dprintk("Suppressed key event 0x%X - "
|
||||
"Last press was %lld us ago\n",
|
||||
key->code, ktime_to_us(diff));
|
||||
return;
|
||||
}
|
||||
last_pressed[key->code - KEYCODE_BASE] = cur;
|
||||
|
||||
if (key->type == KE_KEY &&
|
||||
/* Brightness is served via acpi video driver */
|
||||
(!acpi_video_backlight_support() ||
|
||||
(key->code != MSI_WMI_BRIGHTNESSUP &&
|
||||
key->code != MSI_WMI_BRIGHTNESSDOWN))) {
|
||||
dprintk("Send key: 0x%X - "
|
||||
"Input layer keycode: %d\n", key->code,
|
||||
key->keycode);
|
||||
sparse_keymap_report_entry(msi_wmi_input_dev,
|
||||
key, 1, true);
|
||||
}
|
||||
} else
|
||||
printk(KERN_INFO "Unknown key pressed - %x\n",
|
||||
eventcode);
|
||||
} else
|
||||
printk(KERN_INFO DRV_PFX "Unknown event received\n");
|
||||
kfree(response.pointer);
|
||||
}
|
||||
|
||||
static int __init msi_wmi_input_setup(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
msi_wmi_input_dev = input_allocate_device();
|
||||
if (!msi_wmi_input_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
msi_wmi_input_dev->name = "MSI WMI hotkeys";
|
||||
msi_wmi_input_dev->phys = "wmi/input0";
|
||||
msi_wmi_input_dev->id.bustype = BUS_HOST;
|
||||
|
||||
err = sparse_keymap_setup(msi_wmi_input_dev, msi_wmi_keymap, NULL);
|
||||
if (err)
|
||||
goto err_free_dev;
|
||||
|
||||
err = input_register_device(msi_wmi_input_dev);
|
||||
|
||||
if (err)
|
||||
goto err_free_keymap;
|
||||
|
||||
memset(last_pressed, 0, sizeof(last_pressed));
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_keymap:
|
||||
sparse_keymap_free(msi_wmi_input_dev);
|
||||
err_free_dev:
|
||||
input_free_device(msi_wmi_input_dev);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int __init msi_wmi_init(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
|
||||
printk(KERN_ERR
|
||||
"This machine doesn't have MSI-hotkeys through WMI\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
|
||||
msi_wmi_notify, NULL);
|
||||
if (err)
|
||||
return -EINVAL;
|
||||
|
||||
err = msi_wmi_input_setup();
|
||||
if (err)
|
||||
goto err_uninstall_notifier;
|
||||
|
||||
if (!acpi_video_backlight_support()) {
|
||||
backlight = backlight_device_register(DRV_NAME,
|
||||
NULL, NULL, &msi_backlight_ops);
|
||||
if (IS_ERR(backlight))
|
||||
goto err_free_input;
|
||||
|
||||
backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
|
||||
err = bl_get(NULL);
|
||||
if (err < 0)
|
||||
goto err_free_backlight;
|
||||
|
||||
backlight->props.brightness = err;
|
||||
}
|
||||
dprintk("Event handler installed\n");
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_backlight:
|
||||
backlight_device_unregister(backlight);
|
||||
err_free_input:
|
||||
input_unregister_device(msi_wmi_input_dev);
|
||||
err_uninstall_notifier:
|
||||
wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit msi_wmi_exit(void)
|
||||
{
|
||||
if (wmi_has_guid(MSIWMI_EVENT_GUID)) {
|
||||
wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
|
||||
sparse_keymap_free(msi_wmi_input_dev);
|
||||
input_unregister_device(msi_wmi_input_dev);
|
||||
backlight_device_unregister(backlight);
|
||||
}
|
||||
}
|
||||
|
||||
module_init(msi_wmi_init);
|
||||
module_exit(msi_wmi_exit);
|
||||
Loading…
Reference in New Issue