bflb_spi.h File Reference

#include "bflb_core.h"

Include dependency graph for bflb_spi.h:

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Data Structures
struct	bflb_spi_config_s
	SPI configuration structure. More...

Macros
#define	SPI_ROLE_MASTER   0
#define	SPI_ROLE_SLAVE   1
#define	SPI_MODE0   0 /* CPOL=0 CHPHA=0 */
#define	SPI_MODE1   1 /* CPOL=0 CHPHA=1 */
#define	SPI_MODE2   2 /* CPOL=1 CHPHA=0 */
#define	SPI_MODE3   3 /* CPOL=1 CHPHA=1 */
#define	SPI_DATA_WIDTH_8BIT   1
#define	SPI_DATA_WIDTH_16BIT   2
#define	SPI_DATA_WIDTH_24BIT   3
#define	SPI_DATA_WIDTH_32BIT   4
#define	SPI_BIT_LSB   1
#define	SPI_BIT_MSB   0
#define	SPI_BYTE_LSB   0
#define	SPI_BYTE_MSB   1
#define	SPI_INTSTS_TC   (1 << 0)
#define	SPI_INTSTS_TX_FIFO   (1 << 1)
#define	SPI_INTSTS_RX_FIFO   (1 << 2)
#define	SPI_INTSTS_SLAVE_TIMEOUT   (1 << 3)
#define	SPI_INTSTS_SLAVE_TX_UNDERRUN   (1 << 4)
#define	SPI_INTSTS_FIFO_ERR   (1 << 5)
#define	SPI_INTCLR_TC   (1 << 16)
#define	SPI_INTCLR_SLAVE_TIMEOUT   (1 << 19)
#define	SPI_INTCLR_SLAVE_TX_UNDERRUN   (1 << 20)
#define	SPI_CMD_SET_DATA_WIDTH   (0x01)
#define	SPI_CMD_GET_DATA_WIDTH   (0x02)
#define	SPI_CMD_CLEAR_TX_FIFO   (0x03)
#define	SPI_CMD_CLEAR_RX_FIFO   (0x04)
#define	SPI_CMD_SET_CS_INTERVAL   (0x05)
#define	SPI_CMD_RX_IGNORE   (0x06)
#define	SPI_CMD_SET_MODE   (0x07)
#define	SPI_CMD_GET_MODE   (0x08)
#define	SPI_CMD_SET_FREQ   (0x09)
#define	SPI_CMD_GET_FREQ   (0x0A)
#define	SPI_CMD_SET_BIT_ORDER   (0x0B)
#define	SPI_CMD_GET_BIT_ORDER   (0x0C)
#define	SPI_CMD_SET_BYTE_ORDER   (0x0E)
#define	SPI_CMD_GET_BYTE_ORDER   (0x0F)

Functions
void	bflb_spi_init (struct bflb_device_s *dev, const struct bflb_spi_config_s *config)
	Initialize spi. More...
void	bflb_spi_deinit (struct bflb_device_s *dev)
	Deinitialize spi. More...
void	bflb_spi_link_txdma (struct bflb_device_s *dev, bool enable)
	Enable spi tx dma. More...
void	bflb_spi_link_rxdma (struct bflb_device_s *dev, bool enable)
	Enable spi rx dma. More...
uint32_t	bflb_spi_poll_send (struct bflb_device_s *dev, uint32_t data)
	Send and receive one data on spi. More...
int	bflb_spi_poll_exchange (struct bflb_device_s *dev, const void *txbuffer, void *rxbuffer, size_t nbytes)
	Send and receive a block of data on spi. More...
bool	bflb_spi_isbusy (struct bflb_device_s *dev)
	Check if spi is busy. More...
void	bflb_spi_txint_mask (struct bflb_device_s *dev, bool mask)
	Enable or disable spi rx fifo threhold interrupt. More...
void	bflb_spi_rxint_mask (struct bflb_device_s *dev, bool mask)
	Enable or disable spi rx fifo threhold interrupt. More...
void	bflb_spi_tcint_mask (struct bflb_device_s *dev, bool mask)
	Enable or disable spi transfer done interrupt. More...
void	bflb_spi_errint_mask (struct bflb_device_s *dev, bool mask)
	Enable or disable spi error interrupt. More...
uint32_t	bflb_spi_get_intstatus (struct bflb_device_s *dev)
	Get spi interrupt status. More...
void	bflb_spi_int_clear (struct bflb_device_s *dev, uint32_t int_clear)
	Clear spi interrupt status. More...
int	bflb_spi_feature_control (struct bflb_device_s *dev, int cmd, size_t arg)
	Control spi feature. More...