android_kernel_samsung_msm8976/include/linux/switch.h

54 lines
1.4 KiB
C
Raw Normal View History

/*
* Switch class driver
*
* Copyright (C) 2008 Google, Inc.
* Author: Mike Lockwood <lockwood@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#ifndef __LINUX_SWITCH_H__
#define __LINUX_SWITCH_H__
struct switch_dev {
const char *name;
struct device *dev;
int index;
int state;
ssize_t (*print_name)(struct switch_dev *sdev, char *buf);
ssize_t (*print_state)(struct switch_dev *sdev, char *buf);
};
struct gpio_switch_platform_data {
const char *name;
unsigned gpio;
/* if NULL, switch_dev.name will be printed */
const char *name_on;
const char *name_off;
/* if NULL, "0" or "1" will be printed */
const char *state_on;
const char *state_off;
};
extern int switch_dev_register(struct switch_dev *sdev);
extern void switch_dev_unregister(struct switch_dev *sdev);
static inline int switch_get_state(struct switch_dev *sdev)
{
return sdev->state;
}
extern void switch_set_state(struct switch_dev *sdev, int state);
#endif /* __LINUX_SWITCH_H__ */