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guocheng.kgc 2020-06-18 20:06:52 +08:00 • committed by shengdong.dsd
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Living_SDK/include/hal/soc/spi.h Normal file
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/*
* Copyright (C) 2015-2017 Alibaba Group Holding Limited
*/
#ifndef HAL_SPI_H
#define HAL_SPI_H
#define HAL_SPI_MODE_MASTER 1 /* spi communication is master mode */
#define HAL_SPI_MODE_SLAVE 2 /* spi communication is slave mode */
typedef struct {
uint32_t mode; /* spi communication mode */
uint32_t freq; /* communication frequency Hz */
} spi_config_t;
typedef struct {
uint8_t port; /* spi port */
spi_config_t config; /* spi config */
void *priv; /* priv data */
} spi_dev_t;
/**
* Initialises the SPI interface for a given SPI device
*
* @param[in] spi the spi device
*
* @return 0 : on success, EIO : if the SPI device could not be initialised
*/
int32_t hal_spi_init(spi_dev_t *spi);
/**
* Spi send
*
* @param[in] spi the spi device
* @param[in] data spi send data
* @param[in] size spi send data size
* @param[in] timeout timeout in ms
*
* @return 0 : on success, EIO : if the SPI device could not be initialised
*/
int32_t hal_spi_send(spi_dev_t *spi, const uint8_t *data, uint16_t size, uint32_t timeout);
/**
* spi_recv
*
* @param[in] spi the spi device
* @param[out] data spi recv data
* @param[in] size spi recv data size
* @param[in] timeout timeout in ms
*
* @return 0 : on success, EIO : if the SPI device could not be initialised
*/
int32_t hal_spi_recv(spi_dev_t *spi, uint8_t *data, uint16_t size, uint32_t timeout);
/**
* spi send data and recv
*
* @param[in] spi the spi device
* @param[in] tx_data spi send data
* @param[in] rx_data spi recv data
* @param[in] size spi data to be sent and recived
* @param[in] timeout timeout in ms
*
* @return 0, on success; EIO : if the SPI device could not be initialised
*/
int32_t hal_spi_send_recv(spi_dev_t *spi, uint8_t *tx_data, uint8_t *rx_data,
uint16_t size, uint32_t timeout);
/**
* De-initialises a SPI interface
*
*
* @param[in] spi the SPI device to be de-initialised
*
* @return 0 : on success, EIO : if an error occurred
*/
int32_t hal_spi_finalize(spi_dev_t *spi);
#endif /* HAL_SPI_H */