#include "AudioDxe.h"

Data Structures
struct	_HDA_WIDGET_DEV

struct	_HDA_FUNC_GROUP

struct	_HDA_CODEC_DEV

struct	_HDA_CODEC_INFO_PRIVATE_DATA

struct	_AUDIO_IO_PRIVATE_DATA

Macros
#define	HDA_CODEC_PRIVATE_DATA_SIGNATURE SIGNATURE_32('H','D','C','O')

#define	HDA_CODEC_INFO_PRIVATE_DATA_FROM_THIS(This)

#define	AUDIO_IO_PRIVATE_DATA_FROM_THIS(This)

#define	GPIO_SETUP_STAGE_DATA BIT0

#define	GPIO_SETUP_STAGE_DIRECTION BIT1

#define	GPIO_SETUP_STAGE_ENABLE BIT2

#define	GPIO_SETUP_STAGE_NONE 0

#define	GPIO_SETUP_STAGE_ALL

#define	GPIO_PIN_MASK_AUTO 0
	Auto: use all reported available pins.

Typedefs
typedef struct _HDA_CODEC_DEV	HDA_CODEC_DEV

typedef struct _HDA_FUNC_GROUP	HDA_FUNC_GROUP

typedef struct _HDA_WIDGET_DEV	HDA_WIDGET_DEV

typedef struct _HDA_CODEC_INFO_PRIVATE_DATA	HDA_CODEC_INFO_PRIVATE_DATA

typedef struct _AUDIO_IO_PRIVATE_DATA	AUDIO_IO_PRIVATE_DATA

Functions
EFI_STATUS EFIAPI	HdaCodecInfoGetAddress (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT8 Address)

EFI_STATUS EFIAPI	HdaCodecInfoGetCodecName (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT CONST CHAR16 *CodecName)

EFI_STATUS EFIAPI	HdaCodecInfoGetVendorId (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT32 VendorId)

EFI_STATUS EFIAPI	HdaCodecInfoGetRevisionId (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT32 RevisionId)

EFI_STATUS EFIAPI	HdaCodecInfoGetAudioFuncId (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT8 AudioFuncId, OUT BOOLEAN *UnsolCapable)

EFI_STATUS EFIAPI	HdaCodecInfoGetDefaultRatesFormats (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT32 Rates, OUT UINT32 *Formats)

EFI_STATUS EFIAPI	HdaCodecInfoGetDefaultAmpCaps (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT UINT32 AmpInCaps, OUT UINT32 *AmpOutCaps)

EFI_STATUS EFIAPI	HdaCodecInfoGetWidgets (IN EFI_HDA_CODEC_INFO_PROTOCOL This, OUT HDA_WIDGET Widgets, OUT UINTN WidgetCount)

EFI_STATUS EFIAPI	HdaCodecInfoFreeWidgetsBuffer (IN HDA_WIDGET *Widgets, IN UINTN WidgetCount)

EFI_STATUS EFIAPI	HdaCodecAudioIoGetOutputs (IN EFI_AUDIO_IO_PROTOCOL This, OUT EFI_AUDIO_IO_PROTOCOL_PORT OutputPorts, OUT UINTN OutputPortsCount)

EFI_STATUS EFIAPI	HdaCodecAudioIoRawGainToDecibels (IN EFI_AUDIO_IO_PROTOCOL This, IN UINT64 OutputIndexMask, IN UINT8 GainParam, OUT INT8 Gain)

EFI_STATUS EFIAPI	HdaCodecAudioIoSetupPlayback (IN EFI_AUDIO_IO_PROTOCOL *This, IN UINT64 OutputIndexMask, IN INT8 Gain, IN EFI_AUDIO_IO_PROTOCOL_FREQ Freq, IN EFI_AUDIO_IO_PROTOCOL_BITS Bits, IN UINT8 Channels, IN UINTN PlaybackDelay)

EFI_STATUS EFIAPI	HdaCodecAudioIoStartPlayback (IN EFI_AUDIO_IO_PROTOCOL This, IN VOID Data, IN UINTN DataLength, IN UINTN Position OPTIONAL)

EFI_STATUS EFIAPI	HdaCodecAudioIoStartPlaybackAsync (IN EFI_AUDIO_IO_PROTOCOL This, IN VOID Data, IN UINTN DataLength, IN UINTN Position OPTIONAL, IN EFI_AUDIO_IO_CALLBACK Callback OPTIONAL, IN VOID *Context OPTIONAL)

EFI_STATUS EFIAPI	HdaCodecAudioIoStopPlayback (IN EFI_AUDIO_IO_PROTOCOL *This)

EFI_STATUS EFIAPI	HdaCodecPrintDefaults (HDA_CODEC_DEV *HdaCodecDev)

EFI_STATUS EFIAPI	HdaCodecGetOutputDac (IN HDA_WIDGET_DEV HdaWidget, OUT HDA_WIDGET_DEV *HdaOutputWidget)

EFI_STATUS EFIAPI	HdaCodecGetSupportedPcmRates (IN HDA_WIDGET_DEV HdaPinWidget, OUT UINT32 SupportedRates)

EFI_STATUS EFIAPI	HdaCodecDisableWidgetPath (IN HDA_WIDGET_DEV *HdaWidget)

EFI_STATUS EFIAPI	HdaCodecWidgetRawGainToDecibels (IN HDA_WIDGET_DEV HdaWidget, IN UINT8 GainParam, OUT INT8 Gain)

EFI_STATUS EFIAPI	HdaCodecEnableWidgetPath (IN HDA_WIDGET_DEV *HdaWidget, IN INT8 Gain, IN UINT8 StreamId, IN UINT16 StreamFormat)

VOID EFIAPI	HdaCodecCleanup (IN HDA_CODEC_DEV *HdaCodecDev)

EFI_STATUS EFIAPI	HdaCodecDriverBindingSupported (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath OPTIONAL)

EFI_STATUS EFIAPI	HdaCodecDriverBindingStart (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath OPTIONAL)

EFI_STATUS EFIAPI	HdaCodecDriverBindingStop (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN UINTN NumberOfChildren, IN EFI_HANDLE ChildHandleBuffer OPTIONAL)

Variables
UINTN	gGpioSetupStageMask

UINTN	gGpioPinMask

UINTN	gCodecSetupDelay

BOOLEAN	gUseForcedCodec

UINTN	gForcedCodec

BOOLEAN	gCodecUseConnNoneNode

Macro Definition Documentation

◆ AUDIO_IO_PRIVATE_DATA_FROM_THIS

#define AUDIO_IO_PRIVATE_DATA_FROM_THIS ( This )

Value:

CR(This, AUDIO_IO_PRIVATE_DATA, AudioIo, HDA_CODEC_PRIVATE_DATA_SIGNATURE)

HDA_CODEC_PRIVATE_DATA_SIGNATURE

#define HDA_CODEC_PRIVATE_DATA_SIGNATURE

Definition HdaCodec.h:35

_AUDIO_IO_PRIVATE_DATA

Definition HdaCodec.h:146

Definition at line 159 of file HdaCodec.h.

◆ GPIO_PIN_MASK_AUTO

#define GPIO_PIN_MASK_AUTO 0

Auto: use all reported available pins.

Definition at line 383 of file HdaCodec.h.

◆ GPIO_SETUP_STAGE_ALL

#define GPIO_SETUP_STAGE_ALL

Value:

  (   \
  GPIO_SETUP_STAGE_DATA         | \
  GPIO_SETUP_STAGE_DIRECTION    | \
  GPIO_SETUP_STAGE_ENABLE       \
  )

Definition at line 376 of file HdaCodec.h.

◆ GPIO_SETUP_STAGE_DATA

#define GPIO_SETUP_STAGE_DATA BIT0

Definition at line 370 of file HdaCodec.h.

◆ GPIO_SETUP_STAGE_DIRECTION

#define GPIO_SETUP_STAGE_DIRECTION BIT1

Definition at line 371 of file HdaCodec.h.

◆ GPIO_SETUP_STAGE_ENABLE

#define GPIO_SETUP_STAGE_ENABLE BIT2

Definition at line 372 of file HdaCodec.h.

◆ GPIO_SETUP_STAGE_NONE

#define GPIO_SETUP_STAGE_NONE 0

Definition at line 374 of file HdaCodec.h.

◆ HDA_CODEC_INFO_PRIVATE_DATA_FROM_THIS

#define HDA_CODEC_INFO_PRIVATE_DATA_FROM_THIS ( This )

Value:

CR(This, HDA_CODEC_INFO_PRIVATE_DATA, HdaCodecInfo, HDA_CODEC_PRIVATE_DATA_SIGNATURE)

_HDA_CODEC_INFO_PRIVATE_DATA

Definition HdaCodec.h:134

Definition at line 143 of file HdaCodec.h.

◆ HDA_CODEC_PRIVATE_DATA_SIGNATURE

#define HDA_CODEC_PRIVATE_DATA_SIGNATURE SIGNATURE_32('H','D','C','O')

Definition at line 35 of file HdaCodec.h.

Typedef Documentation

◆ AUDIO_IO_PRIVATE_DATA

typedef struct _AUDIO_IO_PRIVATE_DATA AUDIO_IO_PRIVATE_DATA

Definition at line 34 of file HdaCodec.h.

◆ HDA_CODEC_DEV

typedef struct _HDA_CODEC_DEV HDA_CODEC_DEV

Definition at line 30 of file HdaCodec.h.

◆ HDA_CODEC_INFO_PRIVATE_DATA

typedef struct _HDA_CODEC_INFO_PRIVATE_DATA HDA_CODEC_INFO_PRIVATE_DATA

Definition at line 33 of file HdaCodec.h.

◆ HDA_FUNC_GROUP

typedef struct _HDA_FUNC_GROUP HDA_FUNC_GROUP

Definition at line 31 of file HdaCodec.h.

◆ HDA_WIDGET_DEV

typedef struct _HDA_WIDGET_DEV HDA_WIDGET_DEV

Definition at line 32 of file HdaCodec.h.

Function Documentation

◆ HdaCodecAudioIoGetOutputs()

EFI_STATUS EFIAPI HdaCodecAudioIoGetOutputs	(	IN EFI_AUDIO_IO_PROTOCOL *	This,
		OUT EFI_AUDIO_IO_PROTOCOL_PORT **	OutputPorts,
		OUT UINTN *	OutputPortsCount )

Gets the collection of output ports.

Parameters

[in]	This	A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
[out]	OutputPorts	A pointer to a buffer where the output ports will be placed.
[out]	OutputPortsCount	The number of ports in OutputPorts.

Return values

EFI_SUCCESS	The audio data was played successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 59 of file HdaCodecAudioIo.c.

◆ HdaCodecAudioIoRawGainToDecibels()

EFI_STATUS EFIAPI HdaCodecAudioIoRawGainToDecibels	(	IN EFI_AUDIO_IO_PROTOCOL *	This,
		IN UINT64	OutputIndexMask,
		IN UINT8	GainParam,
		OUT INT8 *	Gain )

Convert raw amplifier gain setting to decibel gain value; converts using the parameters of the first channel specified in OutputIndexMask which has non-zero amp capabilities. Note: It seems very typical - though it is certainly not required by the spec - that all amps on a codec which have non-zero amp capabilities, actually all have the same params as each other.

Parameters

[in]	This	A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
[in]	OutputIndexMask	A mask indicating the desired outputs.
[in]	GainParam	The raw gain parameter for the amplifier.
[out]	Gain	The amplifier gain (or attentuation if negative) in dB to use, relative to 0 dB level (0 dB is usually at at or near max available volume, but is not required to be so in the spec).

Return values

EFI_SUCCESS	The gain value was calculated successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 270 of file HdaCodecAudioIo.c.

◆ HdaCodecAudioIoSetupPlayback()

EFI_STATUS EFIAPI HdaCodecAudioIoSetupPlayback	(	IN EFI_AUDIO_IO_PROTOCOL *	This,
		IN UINT64	OutputIndexMask,
		IN INT8	Gain,
		IN EFI_AUDIO_IO_PROTOCOL_FREQ	Freq,
		IN EFI_AUDIO_IO_PROTOCOL_BITS	Bits,
		IN UINT8	Channels,
		IN UINTN	PlaybackDelay )

Sets up the device to play audio data. Basic caching is implemented: no actions are taken the second and subsequent times that set up is called again with exactly the same paremeters.

Parameters

[in]	This	A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
[in]	OutputIndexMask	A mask indicating the desired outputs.
[in]	Gain	The amplifier gain (or attentuation if negative) in dB to use, relative to 0 dB level (0 dB is usually at at or near max available volume, but is not required to be so in the spec).
[in]	Bits	The width in bits of the source data.
[in]	Freq	The frequency of the source data.
[in]	Channels	The number of channels the source data contains.
[in]	PlaybackDelay	The required delay before playback after a change in setup.

Return values

EFI_SUCCESS	The audio data was played successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

< TODO: Why does Clover has TRUE here?

< Enable all available pins

Definition at line 327 of file HdaCodecAudioIo.c.

◆ HdaCodecAudioIoStartPlayback()

EFI_STATUS EFIAPI HdaCodecAudioIoStartPlayback	(	IN EFI_AUDIO_IO_PROTOCOL *	This,
		IN VOID *	Data,
		IN UINTN	DataLength,
		IN UINTN Position	OPTIONAL )

Begins playback on the device and waits for playback to complete.

Parameters

[in]	This	A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
[in]	Data	A pointer to the buffer containing the audio data to play.
[in]	DataLength	The size, in bytes, of the data buffer specified by Data.
[in]	Position	The position in the buffer to start at.

Return values

EFI_SUCCESS	The audio data was played successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 764 of file HdaCodecAudioIo.c.

◆ HdaCodecAudioIoStartPlaybackAsync()

EFI_STATUS EFIAPI HdaCodecAudioIoStartPlaybackAsync	(	IN EFI_AUDIO_IO_PROTOCOL *	This,
		IN VOID *	Data,
		IN UINTN	DataLength,
		IN UINTN Position	OPTIONAL,
		IN EFI_AUDIO_IO_CALLBACK Callback	OPTIONAL,
		IN VOID *Context	OPTIONAL )

Begins playback on the device asynchronously.

Parameters

[in]	This	A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
[in]	Data	A pointer to the buffer containing the audio data to play.
[in]	DataLength	The size, in bytes, of the data buffer specified by Data.
[in]	Position	The position in the buffer to start at.
[in]	Callback	A pointer to an optional callback to be invoked when playback is complete.
[in]	Context	A pointer to data to be passed to the callback function.

Return values

EFI_SUCCESS	The audio data was played successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 840 of file HdaCodecAudioIo.c.

◆ HdaCodecAudioIoStopPlayback()

EFI_STATUS EFIAPI HdaCodecAudioIoStopPlayback ( IN EFI_AUDIO_IO_PROTOCOL * This )

Stops playback on the device.

Parameters

[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.

Return values

EFI_SUCCESS	The audio data was played successfully.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 890 of file HdaCodecAudioIo.c.

◆ HdaCodecCleanup()

VOID EFIAPI HdaCodecCleanup ( IN HDA_CODEC_DEV * HdaCodecDev )

Definition at line 1612 of file HdaCodec.c.

◆ HdaCodecDisableWidgetPath()

EFI_STATUS EFIAPI HdaCodecDisableWidgetPath ( IN HDA_WIDGET_DEV * HdaWidget )

Definition at line 1228 of file HdaCodec.c.

◆ HdaCodecDriverBindingStart()

EFI_STATUS EFIAPI HdaCodecDriverBindingStart	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath	OPTIONAL )

Definition at line 1765 of file HdaCodec.c.

◆ HdaCodecDriverBindingStop()

EFI_STATUS EFIAPI HdaCodecDriverBindingStop	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN UINTN	NumberOfChildren,
		IN EFI_HANDLE *ChildHandleBuffer	OPTIONAL )

Definition at line 1854 of file HdaCodec.c.

◆ HdaCodecDriverBindingSupported()

EFI_STATUS EFIAPI HdaCodecDriverBindingSupported	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath	OPTIONAL )

Definition at line 1717 of file HdaCodec.c.

◆ HdaCodecEnableWidgetPath()

EFI_STATUS EFIAPI HdaCodecEnableWidgetPath	(	IN HDA_WIDGET_DEV *	HdaWidget,
		IN INT8	Gain,
		IN UINT8	StreamId,
		IN UINT16	StreamFormat )

Definition at line 1344 of file HdaCodec.c.

◆ HdaCodecGetOutputDac()

EFI_STATUS EFIAPI HdaCodecGetOutputDac	(	IN HDA_WIDGET_DEV *	HdaWidget,
		OUT HDA_WIDGET_DEV **	HdaOutputWidget )

Definition at line 1153 of file HdaCodec.c.

◆ HdaCodecGetSupportedPcmRates()

EFI_STATUS EFIAPI HdaCodecGetSupportedPcmRates	(	IN HDA_WIDGET_DEV *	HdaPinWidget,
		OUT UINT32 *	SupportedRates )

Definition at line 1183 of file HdaCodec.c.

◆ HdaCodecInfoFreeWidgetsBuffer()

EFI_STATUS EFIAPI HdaCodecInfoFreeWidgetsBuffer	(	IN HDA_WIDGET *	Widgets,
		IN UINTN	WidgetCount )

Frees an array of HDA_WIDGET.

Parameters

[in]	Widgets	A pointer to the buffer array of widgets that is to be freed.
[in]	WidgetCount	The number of widgets in Widgets.

Return values

EFI_SUCCESS	The buffer was freed.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 384 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetAddress()

EFI_STATUS EFIAPI HdaCodecInfoGetAddress	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT8 *	Address )

Definition at line 29 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetAudioFuncId()

EFI_STATUS EFIAPI HdaCodecInfoGetAudioFuncId	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT8 *	AudioFuncId,
		OUT BOOLEAN *	UnsolCapable )

Gets the node ID of the codec's audio function.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	AudioFuncId	The node ID of the codec's audio function.

Return values

EFI_SUCCESS	The node ID was retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 152 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetCodecName()

EFI_STATUS EFIAPI HdaCodecInfoGetCodecName	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT CONST CHAR16 **	CodecName )

Gets the codec's name.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	CodecName	A pointer to the buffer to return the codec name.

Return values

EFI_SUCCESS	The codec name was retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 56 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetDefaultAmpCaps()

EFI_STATUS EFIAPI HdaCodecInfoGetDefaultAmpCaps	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT32 *	AmpInCaps,
		OUT UINT32 *	AmpOutCaps )

Gets the codec's default amp capabilities.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	AmpInCaps	The default input amp capabilities.
[out]	AmpOutCaps	The default output amp capabilities.

Return values

EFI_SUCCESS	The default amp capabilities were retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 222 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetDefaultRatesFormats()

EFI_STATUS EFIAPI HdaCodecInfoGetDefaultRatesFormats	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT32 *	Rates,
		OUT UINT32 *	Formats )

Gets the codec's default supported stream rates and formats.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	Rates	The default supported rates.
[out]	Formats	The default supported formats.

Return values

EFI_SUCCESS	The stream rates and formats were retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 187 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetRevisionId()

EFI_STATUS EFIAPI HdaCodecInfoGetRevisionId	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT32 *	RevisionId )

Gets the codec's revision ID.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	RevisionId	The revision ID of the codec.

Return values

EFI_SUCCESS	The revision ID was retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 120 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetVendorId()

EFI_STATUS EFIAPI HdaCodecInfoGetVendorId	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT UINT32 *	VendorId )

Gets the codec's vendor and device ID.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	VendorId	The vendor and device ID of the codec.

Return values

EFI_SUCCESS	The vendor and device ID was retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.

Definition at line 88 of file HdaCodecInfo.c.

◆ HdaCodecInfoGetWidgets()

EFI_STATUS EFIAPI HdaCodecInfoGetWidgets	(	IN EFI_HDA_CODEC_INFO_PROTOCOL *	This,
		OUT HDA_WIDGET **	Widgets,
		OUT UINTN *	WidgetCount )

Gets the codec's widgets.

Parameters

[in]	This	A pointer to the EFI_HDA_CODEC_INFO_PROTOCOL instance.
[out]	Widgets	A pointer to the buffer to return the requested array of widgets.
[out]	WidgetCount	The number of widgets returned in Widgets.

Return values

EFI_SUCCESS	The widgets were retrieved.
EFI_INVALID_PARAMETER	One or more parameters are invalid.
EFI_OUT_OF_RESOURCES	A buffer couldn't be allocated.

Definition at line 258 of file HdaCodecInfo.c.

◆ HdaCodecPrintDefaults()

EFI_STATUS EFIAPI HdaCodecPrintDefaults ( HDA_CODEC_DEV * HdaCodecDev )

◆ HdaCodecWidgetRawGainToDecibels()

EFI_STATUS EFIAPI HdaCodecWidgetRawGainToDecibels	(	IN HDA_WIDGET_DEV *	HdaWidget,
		IN UINT8	GainParam,
		OUT INT8 *	Gain )

Definition at line 1288 of file HdaCodec.c.

Variable Documentation

◆ gCodecSetupDelay

UINTN gCodecSetupDelay

extern

Definition at line 40 of file HdaCodec.c.

◆ gCodecUseConnNoneNode

BOOLEAN gCodecUseConnNoneNode

extern

Definition at line 49 of file HdaCodec.c.

◆ gForcedCodec

UINTN gForcedCodec

extern

Definition at line 46 of file HdaCodec.c.

◆ gGpioPinMask

UINTN gGpioPinMask

extern

Definition at line 37 of file HdaCodec.c.

◆ gGpioSetupStageMask

UINTN gGpioSetupStageMask

extern

Definition at line 34 of file HdaCodec.c.

◆ gUseForcedCodec

BOOLEAN gUseForcedCodec

extern

Definition at line 43 of file HdaCodec.c.

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ AUDIO_IO_PRIVATE_DATA_FROM_THIS

◆ GPIO_PIN_MASK_AUTO

◆ GPIO_SETUP_STAGE_ALL

◆ GPIO_SETUP_STAGE_DATA

◆ GPIO_SETUP_STAGE_DIRECTION

◆ GPIO_SETUP_STAGE_ENABLE

◆ GPIO_SETUP_STAGE_NONE

◆ HDA_CODEC_INFO_PRIVATE_DATA_FROM_THIS

◆ HDA_CODEC_PRIVATE_DATA_SIGNATURE

Typedef Documentation

◆ AUDIO_IO_PRIVATE_DATA

◆ HDA_CODEC_DEV

◆ HDA_CODEC_INFO_PRIVATE_DATA

◆ HDA_FUNC_GROUP

◆ HDA_WIDGET_DEV

Function Documentation

◆ HdaCodecAudioIoGetOutputs()

◆ HdaCodecAudioIoRawGainToDecibels()

◆ HdaCodecAudioIoSetupPlayback()

◆ HdaCodecAudioIoStartPlayback()

◆ HdaCodecAudioIoStartPlaybackAsync()

◆ HdaCodecAudioIoStopPlayback()

◆ HdaCodecCleanup()

◆ HdaCodecDisableWidgetPath()

◆ HdaCodecDriverBindingStart()

◆ HdaCodecDriverBindingStop()

◆ HdaCodecDriverBindingSupported()

◆ HdaCodecEnableWidgetPath()

◆ HdaCodecGetOutputDac()

◆ HdaCodecGetSupportedPcmRates()

◆ HdaCodecInfoFreeWidgetsBuffer()

◆ HdaCodecInfoGetAddress()

◆ HdaCodecInfoGetAudioFuncId()

◆ HdaCodecInfoGetCodecName()

◆ HdaCodecInfoGetDefaultAmpCaps()

◆ HdaCodecInfoGetDefaultRatesFormats()

◆ HdaCodecInfoGetRevisionId()

◆ HdaCodecInfoGetVendorId()

◆ HdaCodecInfoGetWidgets()

◆ HdaCodecPrintDefaults()

◆ HdaCodecWidgetRawGainToDecibels()

Variable Documentation

◆ gCodecSetupDelay

◆ gCodecUseConnNoneNode

◆ gForcedCodec

◆ gGpioPinMask

◆ gGpioSetupStageMask

◆ gUseForcedCodec