SPI Peripheral

SPI peripheral interface. More...

Collaboration diagram for SPI Peripheral:

Data Structures
struct	spi_transfer_info_t
	Synchronization state between SPI ISR and read/write functions. More...

Functions
static bool	spi_poll_for_activity (const peripheral_descriptor_t *self)
	SPI slave poll for activity function.
static status_t	spi_full_init (const peripheral_descriptor_t *self, serial_byte_receive_func_t function)
	SPI slave init function.
static void	spi_full_shutdown (const peripheral_descriptor_t *self)
	SPI slave shutdown function.
static void	spi_data_source (uint8_t *source_byte)
	SPI slave sending data function.
static void	spi_initial_data_sink (uint8_t sink_byte, uint16_t instance)
	SPI slave receiving first byte data function.
static void	spi_data_sink (uint8_t sink_byte, uint16_t instance)
	SPI slave receiving data function.
static status_t	spi_write (const peripheral_descriptor_t *self, const uint8_t *buffer, uint32_t byteCount)
	SPI slave writing data function.
void	SPI_SetSystemIRQ (uint32_t instance, PeripheralSystemIRQSetting set)
void	spi_slave_irq_handler (uint32_t instance)
void	SPI0_IRQHandler (void)
void	SPI1_IRQHandler (void)
void	SPI2_IRQHandler (void)

Variables
const peripheral_control_interface_t	g_spiControlInterface
	SPI slave control interface information. More...
const peripheral_byte_inteface_t	g_spiByteInterface = {.init = NULL, .write = spi_write }
	SPI slave byte interface information. More...
static spi_transfer_info_t	s_spiInfo
	Global state for the SPI slave peripheral interface. More...
static bool	s_spiActivity [FSL_FEATURE_SOC_SPI_COUNT] = { false }
	Flag for detecting device activity.
static bool	s_spiIntialized [FSL_FEATURE_SOC_SPI_COUNT] = { false }
static serial_byte_receive_func_t	s_spi_app_data_sink_callback
	SPI slave receiving data call back function.
static const uint32_t	g_spiBaseAddr [] = SPI_BASE_ADDRS
static const IRQn_Type	spi_irq_ids [FSL_FEATURE_SOC_SPI_COUNT]

Usage Information

SPI peripheral interface.

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Data Structure Documentation

struct spi_transfer_info_t

Synchronization state between SPI ISR and read/write functions.

Data Fields
const uint8_t *	writeData
	The applications data to write.
volatile uint32_t	bytesToTransfer
	The total number of bytes to be transmitted.
void(*	data_source )(uint8_t *source_byte)
void(*	data_sink )(uint8_t sink_byte, uint16_t instance)

Variable Documentation

const peripheral_byte_inteface_t g_spiByteInterface = {.init = NULL, .write = spi_write }

SPI slave byte interface information.

Byte I/O interface for the SPI peripheral driver.

const peripheral_control_interface_t g_spiControlInterface

Initial value:

= {
    .pollForActivity = spi_poll_for_activity, .init = spi_full_init, .shutdown = spi_full_shutdown, .pump = 0
}

SPI slave control interface information.

Control interface for the SPI peripheral driver.

spi_transfer_info_t s_spiInfo

static

Initial value:

= {
    .writeData = 0, .bytesToTransfer = 0, .data_source = spi_data_source, .data_sink = spi_initial_data_sink
}

Global state for the SPI slave peripheral interface.

const IRQn_Type spi_irq_ids[FSL_FEATURE_SOC_SPI_COUNT]

static

Initial value:

= {
#if defined(SPI0)
    SPI0_IRQn,
#else
    SPI_IRQn,
#endif
#if (FSL_FEATURE_SOC_SPI_COUNT > 1)
    SPI1_IRQn,
#endif
#if (FSL_FEATURE_SOC_SPI_COUNT > 2)
    SPI2_IRQn,
#endif
}