Enum

This section introduces the enumerations that SPIM should configure before performing transfer. More...

Overview

This section introduces the enumerations that SPIM should configure before performing transfer.

Enumerations
enum	spi_cpol {   SPI_CPOL_0 = 0,   SPI_CPOL_1 = 1 }
	SPI master's clock polarity definition. More...
enum	spi_cpha {   SPI_CPHA_0 = 0,   SPI_CPHA_1 = 1 }
	SPI master's clock format definition. More...
enum	spi_mlsb {   SPI_LSB = 0,   SPI_MSB = 1 }
	SPI master's transaction bit order definition. More...
enum	spi_slave_sel {   SPI_SELECT_DEVICE_0 = 0,   SPI_SELECT_DEVICE_1 = 1 }
	SPI master's slave device select definition. More...
enum	spi_cs_polarity {   SPI_CS_POLARITY_LOW = 0,   SPI_CS_POLARITY_HIGH = 1 }
	SPI master's CS polarity definition. More...

Enumeration Type Documentation

enum spi_cpol

SPI master's clock polarity definition.

Before performing transfer, user should make sure the cpol parameter is defined in mtk_spi_config structure and configured through mtk_mhal_spim_prepare_hw().

Enumerator
SPI_CPOL_0	Clock polarity is 0.
SPI_CPOL_1	Clock polarity is 1.

enum spi_cpha

SPI master's clock format definition.

Before performing transfer, user should make sure the cpha parameter is defined in mtk_spi_config structure and configured through mtk_mhal_spim_prepare_hw().

Enumerator
SPI_CPHA_0	Clock format is 0.
SPI_CPHA_1	Clock format is 1.

enum spi_mlsb

SPI master's transaction bit order definition.

Before performing transfer, user should make sure tx_mlsb and rx_mlsb parameters are defined in mtk_spi_config structure and configured through mtk_mhal_spim_prepare_hw().

Enumerator
SPI_LSB	Send/Receive data transfer LSB first.
SPI_MSB	Send/Receive data transfer MSB first.

enum spi_slave_sel

SPI master's slave device select definition.

Before performing transfer, user should configured through mtk_mhal_spim_prepare_hw().

Enumerator
SPI_SELECT_DEVICE_0	select device 0
SPI_SELECT_DEVICE_1	select device 1

enum spi_cs_polarity

SPI master's CS polarity definition.

Before performing transfer, user should configured through mtk_mhal_spim_prepare_hw().

Enumerator
SPI_CS_POLARITY_LOW	cs operate low active
SPI_CS_POLARITY_HIGH	cs operate high active