Overview

The sgtl5000 driver provide codec control interface.

Modules
	sgtl5000 adapter

Data Structures
struct	sgtl_audio_format_t
	Audio format configuration. More...

struct	sgtl_config_t
	Initailize structure of sgtl5000. More...

struct	sgtl_handle_t
	SGTL codec handler. More...

Macros
#define	CHIP_ID 0x0000
	Define the register address of sgtl5000. More...

#define	SGTL5000_I2C_ADDR 0x0A
	SGTL5000 I2C address. More...

#define	SGTL_I2C_HANDLER_SIZE CODEC_I2C_MASTER_HANDLER_SIZE
	sgtl handle size

#define	SGTL_I2C_BITRATE 100000U
	sgtl i2c baudrate

Enumerations
enum	sgtl_module_t { kSGTL_ModuleADC = 0x0, kSGTL_ModuleDAC, kSGTL_ModuleDAP, kSGTL_ModuleHP, kSGTL_ModuleI2SIN, kSGTL_ModuleI2SOUT, kSGTL_ModuleLineIn, kSGTL_ModuleLineOut, kSGTL_ModuleMicin }
	Modules in Sgtl5000 board. More...

enum	sgtl_route_t { kSGTL_RouteBypass = 0x0, kSGTL_RoutePlayback, kSGTL_RoutePlaybackandRecord, kSGTL_RoutePlaybackwithDAP, kSGTL_RoutePlaybackwithDAPandRecord, kSGTL_RouteRecord }
	Sgtl5000 data route. More...

enum	sgtl_protocol_t { kSGTL_BusI2S = 0x0, kSGTL_BusLeftJustified, kSGTL_BusRightJustified, kSGTL_BusPCMA, kSGTL_BusPCMB }
	The audio data transfer protocol choice. More...

enum	_sgtl_play_channel { kSGTL_HeadphoneLeft = 0, kSGTL_HeadphoneRight = 1, kSGTL_LineoutLeft = 2, kSGTL_LineoutRight = 3 }
	sgtl play channel More...

enum	_sgtl_record_source { kSGTL_RecordSourceLineIn = 0U, kSGTL_RecordSourceMic = 1U }
	sgtl record source More...

enum	_stgl_play_source { kSGTL_PlaySourceLineIn = 0U, kSGTL_PlaySourceDAC = 1U }
	sgtl play source More...

enum	sgtl_sclk_edge_t { kSGTL_SclkValidEdgeRising = 0U, kSGTL_SclkValidEdgeFailling = 1U }
	SGTL SCLK valid edge. More...

Functions
status_t	SGTL_Init (sgtl_handle_t handle, sgtl_config_t config)
	sgtl5000 initialize function. More...

status_t	SGTL_SetDataRoute (sgtl_handle_t *handle, sgtl_route_t route)
	Set audio data route in sgtl5000. More...

status_t	SGTL_SetProtocol (sgtl_handle_t *handle, sgtl_protocol_t protocol)
	Set the audio transfer protocol. More...

void	SGTL_SetMasterSlave (sgtl_handle_t *handle, bool master)
	Set sgtl5000 as master or slave. More...

status_t	SGTL_SetVolume (sgtl_handle_t *handle, sgtl_module_t module, uint32_t volume)
	Set the volume of different modules in sgtl5000. More...

uint32_t	SGTL_GetVolume (sgtl_handle_t *handle, sgtl_module_t module)
	Get the volume of different modules in sgtl5000. More...

status_t	SGTL_SetMute (sgtl_handle_t *handle, sgtl_module_t module, bool mute)
	Mute/unmute modules in sgtl5000. More...

status_t	SGTL_EnableModule (sgtl_handle_t *handle, sgtl_module_t module)
	Enable expected devices. More...

status_t	SGTL_DisableModule (sgtl_handle_t *handle, sgtl_module_t module)
	Disable expected devices. More...

status_t	SGTL_Deinit (sgtl_handle_t *handle)
	Deinit the sgtl5000 codec. More...

status_t	SGTL_ConfigDataFormat (sgtl_handle_t *handle, uint32_t mclk, uint32_t sample_rate, uint32_t bits)
	Configure the data format of audio data. More...

status_t	SGTL_SetPlay (sgtl_handle_t *handle, uint32_t playSource)
	select SGTL codec play source. More...

status_t	SGTL_SetRecord (sgtl_handle_t *handle, uint32_t recordSource)
	select SGTL codec record source. More...

status_t	SGTL_WriteReg (sgtl_handle_t *handle, uint16_t reg, uint16_t val)
	Write register to sgtl using I2C. More...

status_t	SGTL_ReadReg (sgtl_handle_t handle, uint16_t reg, uint16_t val)
	Read register from sgtl using I2C. More...

status_t	SGTL_ModifyReg (sgtl_handle_t *handle, uint16_t reg, uint16_t clr_mask, uint16_t val)
	Modify some bits in the register using I2C. More...

Driver version
#define	FSL_SGTL5000_DRIVER_VERSION (MAKE_VERSION(2, 1, 0))
	CLOCK driver version 2.1.0. More...

Data Structure Documentation

struct sgtl_audio_format_t

Data Fields
uint32_t	mclk_HZ
	master clock

uint32_t	sampleRate
	Sample rate.

uint32_t	bitWidth
	Bit width.

sgtl_sclk_edge_t	sclkEdge
	sclk valid edge

struct sgtl_config_t

Data Fields
sgtl_route_t	route
	Audio data route. More...

sgtl_protocol_t	bus
	Audio transfer protocol.

bool	master_slave
	Master or slave. More...

sgtl_audio_format_t	format
	audio format

uint8_t	slaveAddress
	code device slave address

codec_i2c_config_t	i2cConfig
	i2c bus configuration

Field Documentation

sgtl_route_t sgtl_config_t::route

bool sgtl_config_t::master_slave

True means master, false means slave.

struct sgtl_handle_t

Data Fields
sgtl_config_t *	config
	sgtl config pointer

uint8_t	i2cHandle [SGTL_I2C_HANDLER_SIZE]
	i2c handle

Macro Definition Documentation

#define FSL_SGTL5000_DRIVER_VERSION (MAKE_VERSION(2, 1, 0))

#define CHIP_ID 0x0000

#define SGTL5000_I2C_ADDR 0x0A

Enumeration Type Documentation

enum sgtl_module_t

Enumerator
kSGTL_ModuleADC	ADC module in SGTL5000.
kSGTL_ModuleDAC	DAC module in SGTL5000.
kSGTL_ModuleDAP	DAP module in SGTL5000.
kSGTL_ModuleHP	Headphone module in SGTL5000.
kSGTL_ModuleI2SIN	I2S-IN module in SGTL5000.
kSGTL_ModuleI2SOUT	I2S-OUT module in SGTL5000.
kSGTL_ModuleLineIn	Line-in moudle in SGTL5000.
kSGTL_ModuleLineOut	Line-out module in SGTL5000.
kSGTL_ModuleMicin	Micphone module in SGTL5000.

enum sgtl_route_t

Note: Only provide some typical data route, not all route listed. Users cannot combine any routes, once a new route is set, the precios one would be replaced.

Enumerator
kSGTL_RouteBypass	LINEIN->Headphone.
kSGTL_RoutePlayback	I2SIN->DAC->Headphone.
kSGTL_RoutePlaybackandRecord	I2SIN->DAC->Headphone, LINEIN->ADC->I2SOUT.
kSGTL_RoutePlaybackwithDAP	I2SIN->DAP->DAC->Headphone.
kSGTL_RoutePlaybackwithDAPandRecord	I2SIN->DAP->DAC->HP, LINEIN->ADC->I2SOUT.
kSGTL_RouteRecord	LINEIN->ADC->I2SOUT.

enum sgtl_protocol_t

Sgtl5000 only supports I2S format and PCM format.

Enumerator
kSGTL_BusI2S	I2S Type.
kSGTL_BusLeftJustified	Left justified.
kSGTL_BusRightJustified	Right Justified.
kSGTL_BusPCMA	PCMA.
kSGTL_BusPCMB	PCMB.

enum _sgtl_play_channel

Enumerator
kSGTL_HeadphoneLeft	headphone left channel
kSGTL_HeadphoneRight	headphone right channel
kSGTL_LineoutLeft	lineout left channel
kSGTL_LineoutRight	lineout right channel

enum _sgtl_record_source

Enumerator
kSGTL_RecordSourceLineIn	record source line in
kSGTL_RecordSourceMic	record source single end

enum _stgl_play_source

Enumerator
kSGTL_PlaySourceLineIn	play source line in
kSGTL_PlaySourceDAC	play source line in

enum sgtl_sclk_edge_t

Enumerator
kSGTL_SclkValidEdgeRising	SCLK valid edge.
kSGTL_SclkValidEdgeFailling	SCLK failling edge.

Function Documentation

status_t SGTL_Init	(	sgtl_handle_t *	handle,
		sgtl_config_t *	config
	)

This function calls SGTL_I2CInit(), and in this function, some configurations are fixed. The second parameter can be NULL. If users want to change the SGTL5000 settings, a configure structure should be prepared.

Note: If the codec_config is NULL, it would initialize sgtl5000 using default settings. The default setting:
* sgtl_init_t codec_config

* codec_config.route = kSGTL_RoutePlaybackandRecord

* codec_config.bus = kSGTL_BusI2S

* codec_config.master = slave

*

Parameters

handle	Sgtl5000 handle structure.
config	sgtl5000 configuration structure. If this pointer equals to NULL, it means using the default configuration.

Returns: Initialization status

status_t SGTL_SetDataRoute	(	sgtl_handle_t *	handle,
		sgtl_route_t	route
	)

This function would set the data route according to route. The route cannot be combined, as all route would enable different modules.

Note: If a new route is set, the previous route would not work.

Parameters

handle	Sgtl5000 handle structure.
route	Audio data route in sgtl5000.

status_t SGTL_SetProtocol	(	sgtl_handle_t *	handle,
		sgtl_protocol_t	protocol
	)

Sgtl5000 only supports I2S, I2S left, I2S right, PCM A, PCM B format.

Parameters

handle	Sgtl5000 handle structure.
protocol	Audio data transfer protocol.

void SGTL_SetMasterSlave	(	sgtl_handle_t *	handle,
		bool	master
	)

Parameters

handle	Sgtl5000 handle structure.
master	1 represent master, 0 represent slave.

status_t SGTL_SetVolume	(	sgtl_handle_t *	handle,
		sgtl_module_t	module,
		uint32_t	volume
	)

This function would set the volume of sgtl5000 modules. This interface set module volume. The function assume that left channel and right channel has the same volume.

Parameters

handle	Sgtl5000 handle structure.
module	Sgtl5000 module, such as DAC, ADC and etc.
volume	Volume value need to be set. The value is the exact value in register.

uint32_t SGTL_GetVolume	(	sgtl_handle_t *	handle,
		sgtl_module_t	module
	)

This function gets the volume of sgtl5000 modules. This interface get DAC module volume. The function assume that left channel and right channel has the same volume.

Parameters

handle	Sgtl5000 handle structure.
module	Sgtl5000 module, such as DAC, ADC and etc.

Returns: Module value, the value is exact value in register.

status_t SGTL_SetMute	(	sgtl_handle_t *	handle,
		sgtl_module_t	module,
		bool	mute
	)

Parameters

handle	Sgtl5000 handle structure.
module	Sgtl5000 module, such as DAC, ADC and etc.
mute	True means mute, and false means unmute.

status_t SGTL_EnableModule	(	sgtl_handle_t *	handle,
		sgtl_module_t	module
	)

Parameters

handle	Sgtl5000 handle structure.
module	Module expected to enable.

status_t SGTL_DisableModule	(	sgtl_handle_t *	handle,
		sgtl_module_t	module
	)

Parameters

handle	Sgtl5000 handle structure.
module	Module expected to enable.

status_t SGTL_Deinit ( sgtl_handle_t * handle )

Shut down Sgtl5000 modules.

Parameters

handle Sgtl5000 handle structure pointer.

status_t SGTL_ConfigDataFormat	(	sgtl_handle_t *	handle,
		uint32_t	mclk,
		uint32_t	sample_rate,
		uint32_t	bits
	)

This function would configure the registers about the sample rate, bit depths.

Parameters

handle	Sgtl5000 handle structure pointer.
mclk	Master clock frequency of I2S.
sample_rate	Sample rate of audio file running in sgtl5000. Sgtl5000 now supports 8k, 11.025k, 12k, 16k, 22.05k, 24k, 32k, 44.1k, 48k and 96k sample rate.
bits	Bit depth of audio file (Sgtl5000 only supports 16bit, 20bit, 24bit and 32 bit in HW).

status_t SGTL_SetPlay	(	sgtl_handle_t *	handle,
		uint32_t	playSource
	)

Parameters

handle	Sgtl5000 handle structure pointer.
playSource	play source value, reference _sgtl_play_source.

Returns: kStatus_Success, else failed.

status_t SGTL_SetRecord	(	sgtl_handle_t *	handle,
		uint32_t	recordSource
	)

Parameters

handle	Sgtl5000 handle structure pointer.
recordSource	record source value, reference _sgtl_record_source.

Returns: kStatus_Success, else failed.

status_t SGTL_WriteReg	(	sgtl_handle_t *	handle,
		uint16_t	reg,
		uint16_t	val
	)

Parameters

handle	Sgtl5000 handle structure.
reg	The register address in sgtl.
val	Value needs to write into the register.

status_t SGTL_ReadReg	(	sgtl_handle_t *	handle,
		uint16_t	reg,
		uint16_t *	val
	)

Parameters

handle	Sgtl5000 handle structure.
reg	The register address in sgtl.
val	Value written to.

status_t SGTL_ModifyReg	(	sgtl_handle_t *	handle,
		uint16_t	reg,
		uint16_t	clr_mask,
		uint16_t	val
	)

Parameters

handle	Sgtl5000 handle structure.
reg	The register address in sgtl.
clr_mask	The mask code for the bits want to write. The bit you want to write should be 0.
val	Value needs to write into the register.

Overview

Modules

Data Structures

Macros

Enumerations

Functions

Driver version

Data Structure Documentation

Data Fields

Data Fields

Field Documentation

Data Fields

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation