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/*
* libdevice-node
*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __HW_DISPLAY_H__
#define __HW_DISPLAY_H__
#include <hw/common.h>
/**
* The id of this device
*/
#define DISPLAY_HARDWARE_DEVICE_ID "display"
/**
* The version of this device
*/
#define DISPLAY_HARDWARE_DEVICE_VERSION MAKE_VERSION(1,0)
enum display_state {
DISPLAY_ON, /* In use */
DISPLAY_STANDBY, /* Blanked, low power */
DISPLAY_SUSPEND, /* Blanked, lower power */
DISPLAY_OFF, /* Shut off, awaiting activity */
};
struct display_device {
struct hw_common common;
/* The brightness value is 0 to 100. */
int (*get_brightness)(int *brightness);
int (*set_brightness)(int brightness);
/* Control display state */
int (*get_state)(enum display_state *state);
int (*set_state)(enum display_state state);
};
#endif
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