disp_dev.h

/*
 * Copyright (C) 2020 Inria
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdbool.h>
#include <stdint.h>
 
#include "board.h"
 
#ifndef BACKLIGHT_ON
#define BACKLIGHT_ON
#endif
 
#ifndef BACKLIGHT_OFF
#define BACKLIGHT_OFF
#endif

typedef struct disp_dev disp_dev_t;

typedef struct {
    uint16_t x1;                    
    uint16_t x2;                    
    uint16_t y1;                    
    uint16_t y2;                    
} disp_dev_area_t;

typedef struct {
    void (*map)(const disp_dev_t *dev,
                const disp_dev_area_t *area,
                const uint16_t *color);

    uint16_t (*height)(const disp_dev_t *dev);

    uint16_t (*width)(const disp_dev_t *dev);

    uint8_t (*color_depth)(const disp_dev_t *dev);

    void (*set_invert)(const disp_dev_t *dev, bool invert);
} disp_dev_driver_t;

struct disp_dev {
    const disp_dev_driver_t *driver;    
};

typedef struct disp_dev_reg {
    struct disp_dev_reg *next;      
    disp_dev_t *dev;                
    uint8_t screen_id;              
} disp_dev_reg_t;

extern disp_dev_reg_t *disp_dev_reg;

int disp_dev_reg_add(disp_dev_reg_t *dev);

disp_dev_reg_t *disp_dev_reg_find_screen(uint8_t screen_id);

void disp_dev_map(const disp_dev_t *dev,
                  const disp_dev_area_t *area,
                  const uint16_t *color);

uint16_t disp_dev_height(const disp_dev_t *dev);

uint16_t disp_dev_width(const disp_dev_t *dev);

uint8_t disp_dev_color_depth(const disp_dev_t *dev);

void disp_dev_set_invert(const disp_dev_t *dev, bool invert);

static inline void disp_dev_backlight_on(void)
{
    BACKLIGHT_ON;
}

static inline void disp_dev_backlight_off(void)
{
    BACKLIGHT_OFF;
}
 
#ifdef __cplusplus
}
#endif