#ifndef _SSD1306_H_
#define _SSD1306_H_

#include "stdint.h"

#define SSD1306_CMD 0
#define SSD1306_DAT 1

#define SSD1306_WIDTH  128
#define SSD1306_HEIGHT 64

#define OLED_CS_PIN  GPIO_PIN_10
#define OLED_DC_PIN  GPIO_PIN_22
#define OLED_RES_PIN GPIO_PIN_11

#define CS1_HIGH gpio_write(OLED_CS_PIN, 1)
#define CS1_LOW  gpio_write(OLED_CS_PIN, 0)
#define DC_HIGH  gpio_write(OLED_DC_PIN, 1)
#define DC_LOW   gpio_write(OLED_DC_PIN, 0)
#define RES_HIGH gpio_write(OLED_RES_PIN, 1)
#define RES_LOW  gpio_write(OLED_RES_PIN, 0)

void ssd1306_init(void);
void ssd1306_display_on(void);
void ssd1306_display_off(void);
void ssd1306_refresh_gram(void);
void ssd1306_clear_screen(uint8_t fill);
void ssd1306_draw_point(uint8_t x, uint8_t y, uint8_t mode);
void ssd1306_display_char(uint8_t x, uint8_t y, uint8_t chr, uint8_t size, uint8_t mode);
void ssd1306_display_string(uint8_t x, uint8_t y, const char *string, uint8_t size, uint8_t mode);
void ssd1306_display_chinese(uint8_t x, uint8_t y, uint8_t no, uint8_t mode);
void ssd1306_draw_bmp(uint8_t x, uint8_t y, const unsigned char *image, uint8_t index, uint8_t mode);
void ssd1306_draw_alpha(uint8_t x, uint8_t y, const unsigned char *image, uint8_t index, uint8_t mode);
#endif