mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 07:34:06 +08:00
da0c490115
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
/*
|
|
* Input Power Event -> APM Bridge
|
|
*
|
|
* Copyright (c) 2007 Richard Purdie
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/input.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/init.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/apm-emulation.h>
|
|
|
|
static void system_power_event(unsigned int keycode)
|
|
{
|
|
switch (keycode) {
|
|
case KEY_SUSPEND:
|
|
apm_queue_event(APM_USER_SUSPEND);
|
|
pr_info("Requesting system suspend...\n");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void apmpower_event(struct input_handle *handle, unsigned int type,
|
|
unsigned int code, int value)
|
|
{
|
|
/* only react on key down events */
|
|
if (value != 1)
|
|
return;
|
|
|
|
switch (type) {
|
|
case EV_PWR:
|
|
system_power_event(code);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int apmpower_connect(struct input_handler *handler,
|
|
struct input_dev *dev,
|
|
const struct input_device_id *id)
|
|
{
|
|
struct input_handle *handle;
|
|
int error;
|
|
|
|
handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
|
|
if (!handle)
|
|
return -ENOMEM;
|
|
|
|
handle->dev = dev;
|
|
handle->handler = handler;
|
|
handle->name = "apm-power";
|
|
|
|
error = input_register_handle(handle);
|
|
if (error) {
|
|
pr_err("Failed to register input power handler, error %d\n",
|
|
error);
|
|
kfree(handle);
|
|
return error;
|
|
}
|
|
|
|
error = input_open_device(handle);
|
|
if (error) {
|
|
pr_err("Failed to open input power device, error %d\n", error);
|
|
input_unregister_handle(handle);
|
|
kfree(handle);
|
|
return error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void apmpower_disconnect(struct input_handle *handle)
|
|
{
|
|
input_close_device(handle);
|
|
input_unregister_handle(handle);
|
|
kfree(handle);
|
|
}
|
|
|
|
static const struct input_device_id apmpower_ids[] = {
|
|
{
|
|
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
|
|
.evbit = { BIT_MASK(EV_PWR) },
|
|
},
|
|
{ },
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(input, apmpower_ids);
|
|
|
|
static struct input_handler apmpower_handler = {
|
|
.event = apmpower_event,
|
|
.connect = apmpower_connect,
|
|
.disconnect = apmpower_disconnect,
|
|
.name = "apm-power",
|
|
.id_table = apmpower_ids,
|
|
};
|
|
|
|
static int __init apmpower_init(void)
|
|
{
|
|
return input_register_handler(&apmpower_handler);
|
|
}
|
|
|
|
static void __exit apmpower_exit(void)
|
|
{
|
|
input_unregister_handler(&apmpower_handler);
|
|
}
|
|
|
|
module_init(apmpower_init);
|
|
module_exit(apmpower_exit);
|
|
|
|
MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
|
|
MODULE_DESCRIPTION("Input Power Event -> APM Bridge");
|
|
MODULE_LICENSE("GPL");
|