esp_lcd.h

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#ifndef _ESP_LCD_H_
#define _ESP_LCD_H_
 
#include "driver/gpio.h"
 
/* LCD Error */
typedef int lcd_err_t;      
#define LCD_FAIL            -1  
#define LCD_OK               0  
#define LCD_DATA_LINE 4 
 
typedef enum {
    LCD_INACTIVE = 0,   
    LCD_ACTIVE = 1,     
}lcd_state_t;
 
 
typedef struct
{
    gpio_num_t data[LCD_DATA_LINE]; 
    gpio_num_t en;                  
    gpio_num_t regSel;              
    lcd_state_t state;              
} lcd_t;
 
void lcdDefault(lcd_t *const lcd);
 
void lcdInit(lcd_t *const lcd);
 
void lcdCtor(lcd_t *lcd, gpio_num_t data[LCD_DATA_LINE], gpio_num_t en, gpio_num_t regSel);
 
lcd_err_t lcdSetText(lcd_t *const lcd, char *text, int x, int y);
 
lcd_err_t lcdSetInt(lcd_t *const lcd, int val, int x, int y);
 
lcd_err_t lcdClear(lcd_t *const lcd);
 
void lcdFree(lcd_t * const lcd);
 
void assert_lcd(lcd_err_t lcd_error);
 
#endif