#ifndef LIB_EPAPER_2IN9_H_
#define LIB_EPAPER_2IN9_H_

#include "LPC8xx.h"

// Pin definition - à modifier
#define SPIBAUD 	115200
#define SCK_PIN		P0_1
#define MOSI_PIN	P0_8
#define CS_PIN		P0_16
#define RST_PIN		P0_11
#define DC_PIN		P0_21
#define BUSY_PIN	P0_17

// Display resolution
#define EPD_WIDTH       128
#define EPD_HEIGHT      296

// EPD2IN9 commands
#define DRIVER_OUTPUT_CONTROL                       0x01
#define BOOSTER_SOFT_START_CONTROL                  0x0C
#define GATE_SCAN_START_POSITION                    0x0F
#define DEEP_SLEEP_MODE                             0x10
#define DATA_ENTRY_MODE_SETTING                     0x11
#define SW_RESET                                    0x12
#define TEMPERATURE_SENSOR_CONTROL                  0x1A
#define MASTER_ACTIVATION                           0x20
#define DISPLAY_UPDATE_CONTROL_1                    0x21
#define DISPLAY_UPDATE_CONTROL_2                    0x22
#define WRITE_RAM                                   0x24
#define WRITE_VCOM_REGISTER                         0x2C
#define WRITE_LUT_REGISTER                          0x32
#define SET_DUMMY_LINE_PERIOD                       0x3A
#define SET_GATE_TIME                               0x3B
#define BORDER_WAVEFORM_CONTROL                     0x3C
#define SET_RAM_X_ADDRESS_START_END_POSITION        0x44
#define SET_RAM_Y_ADDRESS_START_END_POSITION        0x45
#define SET_RAM_X_ADDRESS_COUNTER                   0x4E
#define SET_RAM_Y_ADDRESS_COUNTER                   0x4F
#define TERMINATE_FRAME_READ_WRITE                  0xFF

// Macro functions
#define WaitEpaperReady() while(LPC_GPIO_PORT->B0[BUSY_PIN]) // à modifier
#define WaitSPIReady() while(!(LPC_SPI0->STAT & SPI_TXRDY));

// Basic functions
void _epaper_spiinit();
void _epaper_spitransfer(uint8_t data);
uint8_t _epaper_digitalread(uint8_t pin);
uint8_t _epaper_digitalwrite(uint8_t pin, uint8_t value);
void _epaper_setlut(const uint8_t* lut);
void _epaper_setmemoryarea(uint8_t x_start, uint8_t y_start, uint8_t x_stop, uint8_t y_stop);
void _epaper_setmemorypointer(uint8_t x, uint8_t y);

// User functions
uint8_t epaper_init();
void epaper_sendcommand(uint8_t command);
void epaper_senddata(uint8_t data);
void epaper_reset();
void epaper_setframe(uint8_t* image_buffer, uint8_t x, uint8_t y, uint8_t w, uint8_t h);
void epaper_clearframe(uint8_t color);
void epaper_display();
void epaper_sleep();


#endif /* LIB_EPAPER_2IN9_H_ */