Architecture independent SPI (Serial Peripheral Interface) API. More...

#include "std.h"
#include "mcu_periph/spi_arch.h"
#include "mcu_periph/sys_time.h"
#include "modules/core/threads.h"

Include dependency graph for spi.h:

Data Structures
struct	spi_transaction
	SPI transaction structure. More...

struct	spi_periph
	SPI peripheral structure. More...

Macros
#define	SPI_TRANSACTION_QUEUE_LEN 8
	SPI transaction queue length.

#define	SPI_SLAVE0 0

#define	SPI_SLAVE1 1

#define	SPI_SLAVE2 2

#define	SPI_SLAVE3 3

#define	SPI_SLAVE4 4

#define	SPI_SLAVE5 5

#define	SPI_SLAVE6 6

#define	SPI_SLAVE7 7

#define	SPI_SLAVE8 8

#define	SPI_SLAVE9 9

Typedefs
typedef void(*	SPICallback) (struct spi_transaction *trans)
	SPI Callback function.

Enumerations
enum	SPIMode { SPIMaster , SPISlave }

enum	SPISlaveSelect { SPISelectUnselect , SPISelect , SPIUnselect , SPINoSelect }
	SPI slave selection behavior options. More...

enum	SPIClockPhase { SPICphaEdge1 , SPICphaEdge2 }
	SPI CPHA (clock phase) options. More...

enum	SPIClockPolarity { SPICpolIdleLow , SPICpolIdleHigh }
	SPI CPOL (clock polarity) options. More...

enum	SPIDataSizeSelect { SPIDss8bit , SPIDss16bit }
	SPI data word size of transfer. More...

enum	SPITransactionStatus { SPITransPending , SPITransRunning , SPITransSuccess , SPITransFailed , SPITransDone }
	SPI transaction status. More...

enum	SPIStatus { SPIIdle , SPIRunning }
	SPI peripheral status. More...

enum	SPIBitOrder { SPIMSBFirst , SPILSBFirst }

enum	SPIClockDiv { SPIDiv2 , SPIDiv4 , SPIDiv8 , SPIDiv16 , SPIDiv32 , SPIDiv64 , SPIDiv128 , SPIDiv256 }
	Peripheral clock divider. More...

Functions
void	spi0_init (void)

void	spi0_arch_init (void)
	Architecture dependent SPI0 initialization.

void	spi1_init (void)

void	spi1_arch_init (void)
	Architecture dependent SPI1 initialization.

void	spi2_init (void)

void	spi2_arch_init (void)
	Architecture dependent SPI2 initialization.

void	spi_init (struct spi_periph *p)
	Initialize a spi peripheral.

void	spi_init_slaves (void)
	Initialize all used slaves and unselect them.

bool	spi_submit (struct spi_periph p, struct spi_transaction t)
	Submit a spi transaction.

enum SPITransactionStatus	spi_blocking_transceive (struct spi_periph p, struct spi_transaction t, float timeout)
	Perform a spi transaction (blocking).

void	spi_slave_select (uint8_t slave)
	Select a slave.

void	spi_slave_unselect (uint8_t slave)
	Unselect a slave.

bool	spi_lock (struct spi_periph *p, uint8_t slave)
	Lock the SPI fifo.

bool	spi_resume (struct spi_periph *p, uint8_t slave)
	Resume the SPI fifo.

void	spi_slave_init (struct spi_periph *p)
	Initialize a spi peripheral in slave mode.

bool	spi_slave_register (struct spi_periph p, struct spi_transaction t)
	Register a spi transaction in slave mode (only one transaction can be registered).

bool	spi_slave_wait (struct spi_periph *p)
	Initialized and wait for the next transaction.

Variables
struct spi_periph	spi0

struct spi_periph	spi1
	receive transferred over DMA

struct spi_periph	spi2
	receive transferred over DMA

Detailed Description

Architecture independent SPI (Serial Peripheral Interface) API.

Also see the SPI interface page.

Definition in file spi.h.

Data Structures