#ifndef __SPI_H____
#define __SPI_H____
#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include "config.h"

typedef struct spi_descr *spi_t;

#define SPI_MODE_0  (0)
#define SPI_MODE_1  (1)
#define SPI_MODE_2  (2)
#define SPI_MODE_3  (3)

#define SPI_CS_LOW  (0)
#define SPI_CS_HIGH (1)

int spi_setup(spi_t, uint32_t cs, int mode, int bps);

void spi_set_speed(spi_t spi, int bps);

void spi_set_mode(spi_t, int mode);

void spi_close(spi_t spi);

uint8_t spi_send_byte(spi_t spi, uint8_t data);

int     spi_transfer(spi_t spi, const uint8_t *tx, uint8_t *rx, int len);

void    spi_cs(spi_t spi, int cs);

uint8_t spi_txrx(spi_t spi, uint8_t data);

#if (TARGET_HAS_SPI1)
extern struct spi_descr spi0;
#endif

#if (TARGET_HAS_SPI2)
extern struct spi_descr spi1;
#endif

#ifdef __cplusplus
}
#endif

#endif