93 строки
2.5 KiB
C
93 строки
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* WMI driver for Xiaomi Laptops */
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/input.h>
|
|
#include <linux/module.h>
|
|
#include <linux/wmi.h>
|
|
|
|
#include <uapi/linux/input-event-codes.h>
|
|
|
|
#define XIAOMI_KEY_FN_ESC_0 "A2095CCE-0491-44E7-BA27-F8ED8F88AA86"
|
|
#define XIAOMI_KEY_FN_ESC_1 "7BBE8E39-B486-473D-BA13-66F75C5805CD"
|
|
#define XIAOMI_KEY_FN_FN "409B028D-F06B-4C7C-8BBB-EE133A6BD87E"
|
|
#define XIAOMI_KEY_CAPSLOCK "83FE7607-053A-4644-822A-21532C621FC7"
|
|
#define XIAOMI_KEY_FN_F7 "76E9027C-95D0-4180-8692-DA6747DD1C2D"
|
|
|
|
#define XIAOMI_DEVICE(guid, key) \
|
|
.guid_string = (guid), \
|
|
.context = &(const unsigned int){key}
|
|
|
|
struct xiaomi_wmi {
|
|
struct input_dev *input_dev;
|
|
unsigned int key_code;
|
|
};
|
|
|
|
int xiaomi_wmi_probe(struct wmi_device *wdev, const void *context)
|
|
{
|
|
struct xiaomi_wmi *data;
|
|
|
|
if (wdev == NULL || context == NULL)
|
|
return -EINVAL;
|
|
|
|
data = devm_kzalloc(&wdev->dev, sizeof(struct xiaomi_wmi), GFP_KERNEL);
|
|
if (data == NULL)
|
|
return -ENOMEM;
|
|
dev_set_drvdata(&wdev->dev, data);
|
|
|
|
data->input_dev = devm_input_allocate_device(&wdev->dev);
|
|
if (data->input_dev == NULL)
|
|
return -ENOMEM;
|
|
data->input_dev->name = "Xiaomi WMI keys";
|
|
data->input_dev->phys = "wmi/input0";
|
|
|
|
data->key_code = *((const unsigned int *)context);
|
|
set_bit(EV_KEY, data->input_dev->evbit);
|
|
set_bit(data->key_code, data->input_dev->keybit);
|
|
|
|
return input_register_device(data->input_dev);
|
|
}
|
|
|
|
void xiaomi_wmi_notify(struct wmi_device *wdev, union acpi_object *dummy)
|
|
{
|
|
struct xiaomi_wmi *data;
|
|
|
|
if (wdev == NULL)
|
|
return;
|
|
|
|
data = dev_get_drvdata(&wdev->dev);
|
|
if (data == NULL)
|
|
return;
|
|
|
|
input_report_key(data->input_dev, data->key_code, 1);
|
|
input_sync(data->input_dev);
|
|
input_report_key(data->input_dev, data->key_code, 0);
|
|
input_sync(data->input_dev);
|
|
}
|
|
|
|
static const struct wmi_device_id xiaomi_wmi_id_table[] = {
|
|
// { XIAOMI_DEVICE(XIAOMI_KEY_FN_ESC_0, KEY_FN_ESC) },
|
|
// { XIAOMI_DEVICE(XIAOMI_KEY_FN_ESC_1, KEY_FN_ESC) },
|
|
{ XIAOMI_DEVICE(XIAOMI_KEY_FN_FN, KEY_PROG1) },
|
|
// { XIAOMI_DEVICE(XIAOMI_KEY_CAPSLOCK, KEY_CAPSLOCK) },
|
|
{ XIAOMI_DEVICE(XIAOMI_KEY_FN_F7, KEY_CUT) },
|
|
|
|
/* Terminating entry */
|
|
{ }
|
|
};
|
|
|
|
static struct wmi_driver xiaomi_wmi_driver = {
|
|
.driver = {
|
|
.name = "xiaomi-wmi",
|
|
},
|
|
.id_table = xiaomi_wmi_id_table,
|
|
.probe = xiaomi_wmi_probe,
|
|
.notify = xiaomi_wmi_notify,
|
|
};
|
|
module_wmi_driver(xiaomi_wmi_driver);
|
|
|
|
MODULE_DEVICE_TABLE(wmi, xiaomi_wmi_id_table);
|
|
MODULE_AUTHOR("Mattias Jacobsson");
|
|
MODULE_DESCRIPTION("Xiaomi WMI driver");
|
|
MODULE_LICENSE("GPL v2");
|