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#ifndef __SPI_H____
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#define __SPI_H____
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include "config.h"
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typedef struct spi_descr *spi_t;
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#define SPI_MODE_0 (0)
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#define SPI_MODE_1 (1)
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#define SPI_MODE_2 (2)
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#define SPI_MODE_3 (2)
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#define SPI_CS_LOW (0)
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#define SPI_CS_HIGH (1)
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int spi_setup(spi_t, uint32_t cs, int mode);
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void spi_close(spi_t spi);
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void spi_set_mode(spi_t, int mode);
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uint8_t spi_send_byte(spi_t spi, uint8_t data);
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int spi_transfer(spi_t spi, const uint8_t *tx, uint8_t *rx, int len);
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void spi_cs(spi_t spi, int cs);
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uint8_t spi_txrx(spi_t spi, uint8_t data);
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#if (TARGET_HAS_SPI1)
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extern struct spi_descr spi0;
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#endif
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#if (TARGET_HAS_SPI2)
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extern struct spi_descr spi1;
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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