spi.h File Reference

#include "compiler.h"

Data Structures
struct	spi_options_t
	Option structure for SPI channels. More...

Macros
#define	SPI_MODE_0   0
	SPI Mode 0. More...
#define	SPI_MODE_1   1
	SPI Mode 1. More...
#define	SPI_MODE_2   2
	SPI Mode 2. More...
#define	SPI_MODE_3   3
	SPI Mode 3. More...
#define	SPI_TIMEOUT   15000
	Time-out value (number of attempts). More...

Enumerations
enum	spi_status_t {   SPI_ERROR = -1,   SPI_OK = 0,   SPI_ERROR_TIMEOUT = 1,   SPI_ERROR_ARGUMENT,   SPI_ERROR_OVERRUN,   SPI_ERROR_MODE_FAULT,   SPI_ERROR_OVERRUN_AND_MODE_FAULT }
	Status codes used by the SPI driver. More...

Functions
int16_t	getBaudDiv (const uint32_t baudrate, uint32_t pb_hz)
	Calculates the baudrate divider. More...
void	spi_disable (volatile avr32_spi_t *spi)
	Disables the SPI. More...
static void	spi_disable_chipselect_decoding (volatile avr32_spi_t *spi)
	Disable Chip Select Decoding of the SPI. More...
static void	spi_disable_loopback (volatile avr32_spi_t *spi)
	Disable Loopback of the SPI. More...
static void	spi_disable_modfault (volatile avr32_spi_t *spi)
	Disable Modfault of the SPI. More...
static void	spi_disable_variable_chipselect (volatile avr32_spi_t *spi)
	Disable Variable Chip Select of the SPI. More...
void	spi_enable (volatile avr32_spi_t *spi)
	Enables the SPI. More...
static void	spi_enable_active_mode (volatile avr32_spi_t *spi, uint8_t chip_select)
	Enable Active mode of a Chip Selects of the SPI. More...
static void	spi_enable_chipselect_decoding (volatile avr32_spi_t *spi)
	Enable Chip Select Decoding of the SPI. More...
static void	spi_enable_loopback (volatile avr32_spi_t *spi)
	Enable Loopback of the SPI. More...
static void	spi_enable_modfault (volatile avr32_spi_t *spi)
	Enable Modfault of the SPI. More...
static void	spi_enable_variable_chipselect (volatile avr32_spi_t *spi)
	Enable Variable Chip Select of the SPI. More...
static uint16_t	spi_get (volatile avr32_spi_t *spi)
	Get one data to a SPI peripheral. More...
uint8_t	spi_getStatus (volatile avr32_spi_t *spi)
	Gets status information from the SPI. More...
spi_status_t	spi_initMaster (volatile avr32_spi_t *spi, const spi_options_t *options)
	Initializes the SPI in master mode. More...
spi_status_t	spi_initSlave (volatile avr32_spi_t *spi, uint8_t bits, uint8_t spi_mode)
	Initializes the SPI in slave mode. More...
spi_status_t	spi_initTest (volatile avr32_spi_t *spi)
	Sets up the SPI in a test mode where the transmitter is connected to the receiver (local loopback). More...
bool	spi_is_enabled (volatile avr32_spi_t *spi)
	Tests if the SPI is enabled. More...
static bool	spi_is_rx_full (volatile avr32_spi_t *spi)
	Check if the SPI contains a received character. More...
static bool	spi_is_rx_ready (volatile avr32_spi_t *spi)
	Checks if all reception is ready. More...
static bool	spi_is_tx_empty (volatile avr32_spi_t *spi)
	Checks if all transmissions are complete. More...
static bool	spi_is_tx_ready (volatile avr32_spi_t *spi)
	Checks if all transmissions is ready. More...
static void	spi_put (volatile avr32_spi_t *spi, uint16_t data)
	Put one data to a SPI peripheral. More...
spi_status_t	spi_read (volatile avr32_spi_t *spi, uint16_t *data)
	Reads one data word in master mode or in slave mode. More...
uint8_t	spi_readRegisterFullCheck (volatile avr32_spi_t *spi)
	Checks if there is data in the receive register. More...
static void	spi_reset (volatile avr32_spi_t *spi)
	Reset the SPI. More...
spi_status_t	spi_selectChip (volatile avr32_spi_t *spi, uint8_t chip)
	Selects slave chip. More...
spi_status_t	spi_selectionMode (volatile avr32_spi_t *spi, uint8_t variable_ps, uint8_t pcs_decode, uint8_t delay)
	Sets up how and when the slave chips are selected (master mode only). More...
static void	spi_set_baudrate_register (volatile avr32_spi_t *spi, uint8_t chip_select, uint8_t scbr)
	Set baudrate for a Chip Selects of the SPI. More...
static void	spi_set_bits_per_transfer (volatile avr32_spi_t *spi, uint8_t chip_select, uint8_t len)
	Set Delay Before SPCK on a Chip Selects of the SPI. More...
static void	spi_set_chipselect (volatile avr32_spi_t *spi, uint8_t chip_select)
	Set Chip Select of the SPI. More...
static void	spi_set_chipselect_delay_bct (volatile avr32_spi_t *spi, uint8_t chip_select, uint8_t delay)
	Set Delay Between Consecutive Transfer on a Chip Selects of the SPI. More...
static void	spi_set_chipselect_delay_bs (volatile avr32_spi_t *spi, uint8_t chip_select, uint8_t delay)
	Set Delay Before SPCK on a Chip Selects of the SPI. More...
static void	spi_set_delay (volatile avr32_spi_t *spi, uint8_t delay)
	Set Delay Between Chip Selects of the SPI. More...
static void	spi_set_master_mode (volatile avr32_spi_t *spi)
	Set Master Mode of the SPI. More...
static void	spi_set_mode (volatile avr32_spi_t *spi, uint8_t chip_select, uint8_t flags)
	Set Mode of the SPI. More...
static void	spi_set_slave_mode (volatile avr32_spi_t *spi)
	Set Slave Mode of the SPI. More...
spi_status_t	spi_setupChipReg (volatile avr32_spi_t *spi, const spi_options_t *options, uint32_t pb_hz)
	Sets options for a specific slave chip. More...
spi_status_t	spi_unselectChip (volatile avr32_spi_t *spi, uint8_t chip)
	Unselects slave chip. More...
spi_status_t	spi_variableSlaveWrite (volatile avr32_spi_t *spi, uint16_t data, uint8_t pcs, uint8_t lastxfer)
	Selects a slave in master variable peripheral select mode and writes one data word to it. More...
spi_status_t	spi_write (volatile avr32_spi_t *spi, uint16_t data)
	Writes one data word in master fixed peripheral select mode or in slave mode. More...
uint8_t	spi_writeEndCheck (volatile avr32_spi_t *spi)
	Checks if all transmissions are complete. More...
uint8_t	spi_writeRegisterEmptyCheck (volatile avr32_spi_t *spi)
	Checks if there is no data in the transmit register. More...