#ifndef __OTM8009A_LCD_H
#define __OTM8009A_LCD_H

#include <stdint.h>

#ifndef OTM_BUS_WIDTH
#define OTM_BUS_WIDTH 16
#endif

#if OTM_BUS_WIDTH == 16
typedef uint16_t otm_data_t;
#elif OTM_BUS_WIDTH == 8
typedef uint8_t otm_data_t;
#elif
#error "OTM_BUS_WIDTH MUST be 16bit or 8bit."
#endif

#ifndef OTM_PANEL_SELECTION
#define OTM_PANEL_SELECTION otm8009a_800480_16b_init_sequence
#endif

typedef enum {
    OTM_OK,
    OTM_ERROR
} otm_ret_t;

typedef enum {
    OTM_HORIZONTAL,
    OTM_HORIZONTAL_INV,
    OTM_VERTICAL,
    OTM_VERTICAL_INV
} otm_direction_t;

typedef struct {
    otm_ret_t (*write_reg_cb)(void *handle, otm_data_t *reg, uint8_t len);
    otm_ret_t (*write_data_cb)(void *handle, otm_data_t *data, uint32_t len);
    otm_ret_t (*delay_cb)(void *handle, uint32_t usec);
} otm_cb_t;

typedef struct {
    otm_direction_t direction;
    void *user_data;
    otm_cb_t cb;
} otm_t;

#define OTM_ERROR_CHECK(x) if(x != OTM_OK) return OTM_ERROR

otm_ret_t otm_lcd_init(otm_t *lcd);
otm_ret_t otm_lcd_display(otm_t *lcd, uint8_t on);
otm_ret_t otm_lcd_upload(otm_t *lcd, uint16_t x1, uint16_t x2, uint16_t y1, uint16_t y2, uint16_t *data);
otm_ret_t otm_lcd_direction(otm_t *lcd, otm_direction_t direction);

#endif