diff options
Diffstat (limited to 'drivers/input/power.c')
| -rw-r--r-- | drivers/input/power.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/drivers/input/power.c b/drivers/input/power.c deleted file mode 100644 index ee82464a2fa7..000000000000 --- a/drivers/input/power.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * $Id: power.c,v 1.10 2001/09/25 09:17:15 vojtech Exp $ - * - * Copyright (c) 2001 "Crazy" James Simmons - * - * Input driver Power Management. - * - * Sponsored by Transvirtual Technology. - */ - -/* - * 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 - * - * Should you need to contact me, the author, you can do so by - * e-mail - mail your message to <jsimmons@transvirtual.com>. - */ - -#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> - -static struct input_handler power_handler; - -/* - * Power management can't be done in a interrupt context. So we have to - * use keventd. - */ -static int suspend_button_pushed = 0; -static void suspend_button_task_handler(void *data) -{ - udelay(200); /* debounce */ - suspend_button_pushed = 0; -} - -static DECLARE_WORK(suspend_button_task, suspend_button_task_handler, NULL); - -static void power_event(struct input_handle *handle, unsigned int type, - unsigned int code, int down) -{ - struct input_dev *dev = handle->dev; - - printk("Entering power_event\n"); - - if (type == EV_PWR) { - switch (code) { - case KEY_SUSPEND: - printk("Powering down entire device\n"); - - if (!suspend_button_pushed) { - suspend_button_pushed = 1; - schedule_work(&suspend_button_task); - } - break; - case KEY_POWER: - /* Hum power down the machine. */ - break; - default: - return; - } - } - - if (type == EV_KEY) { - switch (code) { - case KEY_SUSPEND: - printk("Powering down input device\n"); - /* This is risky. See pm.h for details. */ - if (dev->state != PM_RESUME) - dev->state = PM_RESUME; - else - dev->state = PM_SUSPEND; - pm_send(dev->pm_dev, dev->state, dev); - break; - case KEY_POWER: - /* Turn the input device off completely ? */ - break; - default: - return; - } - } - return; -} - -static struct input_handle *power_connect(struct input_handler *handler, - struct input_dev *dev, - const struct input_device_id *id) -{ - struct input_handle *handle; - - if (!(handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL))) - return NULL; - - handle->dev = dev; - handle->handler = handler; - - input_open_device(handle); - - printk(KERN_INFO "power.c: Adding power management to input layer\n"); - return handle; -} - -static void power_disconnect(struct input_handle *handle) -{ - input_close_device(handle); - kfree(handle); -} - -static const struct input_device_id power_ids[] = { - { - .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT, - .evbit = { BIT(EV_KEY) }, - .keybit = { [LONG(KEY_SUSPEND)] = BIT(KEY_SUSPEND) } - }, - { - .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT, - .evbit = { BIT(EV_KEY) }, - .keybit = { [LONG(KEY_POWER)] = BIT(KEY_POWER) } - }, - { - .flags = INPUT_DEVICE_ID_MATCH_EVBIT, - .evbit = { BIT(EV_PWR) }, - }, - { }, /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE(input, power_ids); - -static struct input_handler power_handler = { - .event = power_event, - .connect = power_connect, - .disconnect = power_disconnect, - .name = "power", - .id_table = power_ids, -}; - -static int __init power_init(void) -{ - return input_register_handler(&power_handler); -} - -static void __exit power_exit(void) -{ - input_unregister_handler(&power_handler); -} - -module_init(power_init); -module_exit(power_exit); - -MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>"); -MODULE_DESCRIPTION("Input Power Management driver"); -MODULE_LICENSE("GPL"); |