CODEC I2C Driver

Overview

The codec common driver provides a codec control abstraction interface.

Data Structures
struct	codec_i2c_config_t
	CODEC I2C configurations structure. More...

Macros
#define	CODEC_I2C_MASTER_HANDLER_SIZE   HAL_I2C_MASTER_HANDLE_SIZE
	codec i2c handler

Enumerations
enum	codec_reg_addr_t {   kCODEC_RegAddr8Bit = 1U,   kCODEC_RegAddr16Bit = 2U }
	CODEC device register address type. More...
enum	codec_reg_width_t {   kCODEC_RegWidth8Bit = 1U,   kCODEC_RegWidth16Bit = 2U,   kCODEC_RegWidth32Bit = 4U }
	CODEC device register width. More...

Functions
status_t	CODEC_I2C_Init (void *handle, uint32_t i2cInstance, uint32_t i2cBaudrate, uint32_t i2cSourceClockHz)
	Codec i2c bus initilization. More...
status_t	CODEC_I2C_Deinit (void *handle)
	Codec i2c de-initilization. More...
status_t	CODEC_I2C_Send (void *handle, uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint8_t *txBuff, uint8_t txBuffSize)
	codec i2c send function. More...
status_t	CODEC_I2C_Receive (void *handle, uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
	codec i2c receive function. More...

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Data Structure Documentation

struct codec_i2c_config_t

Data Fields
uint32_t	codecI2CInstance
	i2c bus instance
uint32_t	codecI2CSourceClock
	i2c bus source clock frequency

Enumeration Type Documentation

enum codec_reg_addr_t

Enumerator
kCODEC_RegAddr8Bit	8-bit register address.
kCODEC_RegAddr16Bit	16-bit register address.

enum codec_reg_width_t

Enumerator
kCODEC_RegWidth8Bit	8-bit register width.
kCODEC_RegWidth16Bit	16-bit register width.
kCODEC_RegWidth32Bit	32-bit register width.

Function Documentation

status_t CODEC_I2C_Init	(	void *	handle,
		uint32_t	i2cInstance,
		uint32_t	i2cBaudrate,
		uint32_t	i2cSourceClockHz
	)

Parameters

handle	i2c master handle.
i2cInstance	instance number of the i2c bus, such as 0 is corresponding to I2C0.
i2cBaudrate	i2c baudrate.
i2cSourceClockHz	i2c source clock frequency.

Returns

kStatus_HAL_I2cSuccess is success, else initial failed.

status_t CODEC_I2C_Deinit

(

void *

handle

)

Parameters

handle

i2c master handle.

Returns

kStatus_HAL_I2cSuccess is success, else deinitial failed.

status_t CODEC_I2C_Send	(	void *	handle,
		uint8_t	deviceAddress,
		uint32_t	subAddress,
		uint8_t	subaddressSize,
		uint8_t *	txBuff,
		uint8_t	txBuffSize
	)

Parameters

handle	i2c master handle.
deviceAddress	codec device address.
subAddress	register address.
subaddressSize	register address width.
txBuff	tx buffer pointer.
txBuffSize	tx buffer size.

Returns

kStatus_HAL_I2cSuccess is success, else send failed.

status_t CODEC_I2C_Receive	(	void *	handle,
		uint8_t	deviceAddress,
		uint32_t	subAddress,
		uint8_t	subaddressSize,
		uint8_t *	rxBuff,
		uint8_t	rxBuffSize
	)

Parameters

handle	i2c master handle.
deviceAddress	codec device address.
subAddress	register address.
subaddressSize	register address width.
rxBuff	rx buffer pointer.
rxBuffSize	rx buffer size.

Returns

kStatus_HAL_I2cSuccess is success, else receive failed.