#ifndef __LCD_H_
#define __LCD_H_

#define LCD_WRITE_ADDRESS 0x50
#define LCD_READ_ADDRESS 0x51

#define MAX_LCD_BUF  120
#define LCD_PIXEL_WIDTH 192
#define LCD_PIXEL_HEIGHT 64

#define LCD_NONBLOCK 1
#define LCD_BLOCK 0

#define LCD_WRITE_BUFFER_SIZE 512
#define LCD_READ_BUFFER_SIZE 100

typedef enum {WRITE, READ} twi_mode_t;

typedef enum {
  LCD_LED_1 = 0,
  LCD_LED_2,
  LCD_LED_3,
} lcd_led_t;

typedef enum {
  LCD_LED_YELLOW = 0,
  LCD_LED_GREEN,
  LCD_LED_RED,
  LCD_LED_OFF,
} lcd_led_color_t;

typedef enum {
  LCD_WHITE = 0,
  LCD_BLACK = 255,
} lcd_color_t;

void init_lcd(void);
void lcd_write(char *);
void lcd_write_P(const char *);
void lcdnwrite(char*, uint8_t);
void lcdnwrite_P(const char *, uint8_t);
char lcd_poll_key(int8_t flags);
char lcd_get_key(void);
void lcd_clear(void);
void lcd_set_brightness(uint8_t);
void lcd_set_led(lcd_led_t, lcd_led_color_t);

void lcd_puts(char* s);
void lcd_reset_cursor(void);

/* Drawing API */
void lcd_draw_rect(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t color);
void lcd_draw_line(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2);
void lcd_set_color(uint8_t color);

#endif