2 * Input Power Event -> APM Bridge
4 * Copyright (c) 2007 Richard Purdie
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
12 #include <linux/module.h>
13 #include <linux/input.h>
14 #include <linux/slab.h>
15 #include <linux/init.h>
16 #include <linux/tty.h>
17 #include <linux/delay.h>
19 #include <linux/apm-emulation.h>
21 static void system_power_event(unsigned int keycode)
25 apm_queue_event(APM_USER_SUSPEND);
27 printk(KERN_INFO "apm-power: Requesting system suspend...\n");
34 static void apmpower_event(struct input_handle *handle, unsigned int type,
35 unsigned int code, int value)
37 /* only react on key down events */
43 system_power_event(code);
51 static int apmpower_connect(struct input_handler *handler,
52 struct input_dev *dev,
53 const struct input_device_id *id)
55 struct input_handle *handle;
58 handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
63 handle->handler = handler;
64 handle->name = "apm-power";
66 error = input_register_handle(handle);
69 "apm-power: Failed to register input power handler, "
75 error = input_open_device(handle);
78 "apm-power: Failed to open input power device, "
80 input_unregister_handle(handle);
88 static void apmpower_disconnect(struct input_handle *handle)
90 input_close_device(handle);
91 input_unregister_handle(handle);
95 static const struct input_device_id apmpower_ids[] = {
97 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
98 .evbit = { BIT_MASK(EV_PWR) },
103 MODULE_DEVICE_TABLE(input, apmpower_ids);
105 static struct input_handler apmpower_handler = {
106 .event = apmpower_event,
107 .connect = apmpower_connect,
108 .disconnect = apmpower_disconnect,
110 .id_table = apmpower_ids,
113 static int __init apmpower_init(void)
115 return input_register_handler(&apmpower_handler);
118 static void __exit apmpower_exit(void)
120 input_unregister_handler(&apmpower_handler);
123 module_init(apmpower_init);
124 module_exit(apmpower_exit);
126 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
127 MODULE_DESCRIPTION("Input Power Event -> APM Bridge");
128 MODULE_LICENSE("GPL");