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rt-thread/components/drivers/include/drivers/backlight.h
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[dm][include] fixup loss' header
Signed-off-by: GuEe-GUI <2991707448@qq.com>
2025-12-22 13:24:41 +08:00

74 lines
1.7 KiB
C
Executable File

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __BACKLIGHT_H__
#define __BACKLIGHT_H__
#include <rthw.h>
#include <rtdef.h>
struct rt_backlight_ops;
enum rt_backlight_power
{
RT_BACKLIGHT_POWER_UNBLANK,
RT_BACKLIGHT_POWER_NORMAL,
RT_BACKLIGHT_POWER_SUSPEND,
RT_BACKLIGHT_POWER_POWERDOWN,
RT_BACKLIGHT_POWER_NR,
};
struct rt_backlight_properties
{
rt_uint32_t brightness;
rt_uint32_t max_brightness;
enum rt_backlight_power power;
};
struct rt_backlight_device
{
struct rt_device parent;
struct rt_backlight_properties props;
const struct rt_backlight_ops *ops;
struct rt_mutex lock;
void *priv;
};
struct rt_backlight_ops
{
rt_err_t (*update_status)(struct rt_backlight_device *);
rt_err_t (*get_brightness)(struct rt_backlight_device *, rt_uint32_t *out_brightness);
};
rt_err_t rt_backlight_register(struct rt_backlight_device *bl);
rt_err_t rt_backlight_unregister(struct rt_backlight_device *bl);
rt_err_t rt_backlight_set_power(struct rt_backlight_device *bl, enum rt_backlight_power power);
rt_err_t rt_backlight_get_power(struct rt_backlight_device *bl, enum rt_backlight_power *out_power);
rt_err_t rt_backlight_set_brightness(struct rt_backlight_device *bl, rt_uint32_t brightness);
rt_err_t rt_backlight_get_brightness(struct rt_backlight_device *bl, rt_uint32_t *out_brightness);
rt_inline rt_uint32_t rt_backlight_power_brightness(struct rt_backlight_device *bl)
{
if (bl->props.power != RT_BACKLIGHT_POWER_UNBLANK)
{
return 0;
}
return bl->props.brightness;
}
#endif /* __BACKLIGHT_H__ */