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/** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
#define AUDIO_CHANNEL_LEFT_FRONT (1 << 0)
/** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
#define AUDIO_CHANNEL_LEFT_FRONT (1 << 0)
/** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
#define AUDIO_FEATURE_BASS_LOUDNESS (1 << 9)
/** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
#define AUDIO_FEATURE_BASS_LOUDNESS (1 << 9)
#define AUDIO_TERMINAL_OUT_LOWFREQ 0x0307
/** Convenience macro to fill a 24-bit \ref USB_Audio_SampleFreq_t structure with the given sample rate as a 24-bit number.
#define AUDIO_TERMINAL_OUT_LOWFREQ 0x0307
/** Convenience macro to fill a 24-bit \ref USB_Audio_SampleFreq_t structure with the given sample rate as a 24-bit number.
* \param[in] freq Required audio sampling frequency in HZ
*/
#define AUDIO_SAMPLE_FREQ(freq) {((uint32_t)freq & 0x00FFFF), (((uint32_t)freq >> 16) & 0x0000FF)}
* \param[in] freq Required audio sampling frequency in HZ
*/
#define AUDIO_SAMPLE_FREQ(freq) {((uint32_t)freq & 0x00FFFF), (((uint32_t)freq >> 16) & 0x0000FF)}
/** Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint
* accepts only filled endpoint packets of audio samples.
*/
/** Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint
* accepts only filled endpoint packets of audio samples.
*/
* will accept partially filled endpoint packets of audio samples.
*/
#define AUDIO_EP_ACCEPTS_SMALL_PACKETS (0 << 7)
* will accept partially filled endpoint packets of audio samples.
*/
#define AUDIO_EP_ACCEPTS_SMALL_PACKETS (0 << 7)
/* Enums: */
/** Audio class specific interface description subtypes, for the Audio Control interface. */
enum Audio_CSInterface_AC_SubTypes_t
/* Enums: */
/** Audio class specific interface description subtypes, for the Audio Control interface. */
enum Audio_CSInterface_AC_SubTypes_t
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_InputTerminal.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_InputTerminal.
*/
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
uint8_t AssociatedOutputTerminal; /**< ID of associated output terminal, for physically grouped terminals
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
uint8_t AssociatedOutputTerminal; /**< ID of associated output terminal, for physically grouped terminals
*/
uint8_t TotalChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
uint16_t ChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
*/
uint8_t TotalChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
uint16_t ChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
uint8_t ChannelStrIndex; /**< Index of a string descriptor describing this channel within the device. */
uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_InputTerminal_t;
uint8_t ChannelStrIndex; /**< Index of a string descriptor describing this channel within the device. */
uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_InputTerminal_t;
*/
uint8_t bNrChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
uint16_t wChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
*/
uint8_t bNrChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
uint16_t wChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
uint8_t iChannelNames; /**< Index of a string descriptor describing this channel within the device. */
uint8_t iTerminal; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_InputTerminal_t;
uint8_t iChannelNames; /**< Index of a string descriptor describing this channel within the device. */
uint8_t iTerminal; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_InputTerminal_t;
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_OutputTerminal.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_OutputTerminal.
*/
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
uint8_t AssociatedInputTerminal; /**< ID of associated input terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
uint8_t SourceID; /**< ID value of the unit this terminal's audio is sourced from. */
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
uint8_t AssociatedInputTerminal; /**< ID of associated input terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
uint8_t SourceID; /**< ID value of the unit this terminal's audio is sourced from. */
uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_OutputTerminal_t;
uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_OutputTerminal_t;
* such as the speaker and microphone of a phone handset.
*/
uint8_t bSourceID; /**< ID value of the unit this terminal's audio is sourced from. */
* such as the speaker and microphone of a phone handset.
*/
uint8_t bSourceID; /**< ID value of the unit this terminal's audio is sourced from. */
uint8_t iTerminal; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_OutputTerminal_t;
uint8_t iTerminal; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_OutputTerminal_t;
uint16_t ACSpecification; /**< Binary coded decimal value, indicating the supported Audio Class specification version. */
uint16_t TotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
uint16_t ACSpecification; /**< Binary coded decimal value, indicating the supported Audio Class specification version. */
uint16_t TotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
uint8_t InCollection; /**< Total number of Audio Streaming interfaces linked to this Audio Control interface (must be 1). */
uint8_t InterfaceNumber; /**< Interface number of the associated Audio Streaming interface. */
} USB_Audio_Descriptor_Interface_AC_t;
uint8_t InCollection; /**< Total number of Audio Streaming interfaces linked to this Audio Control interface (must be 1). */
uint8_t InterfaceNumber; /**< Interface number of the associated Audio Streaming interface. */
} USB_Audio_Descriptor_Interface_AC_t;
uint16_t bcdADC; /**< Binary coded decimal value, indicating the supported Audio Class specification version. */
uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
uint16_t bcdADC; /**< Binary coded decimal value, indicating the supported Audio Class specification version. */
uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
uint8_t bInCollection; /**< Total number of Audio Streaming interfaces linked to this Audio Control interface (must be 1). */
uint8_t bInterfaceNumbers; /**< Interface number of the associated Audio Streaming interface. */
} USB_Audio_StdDescriptor_Interface_AC_t;
uint8_t bInCollection; /**< Total number of Audio Streaming interfaces linked to this Audio Control interface (must be 1). */
uint8_t bInterfaceNumbers; /**< Interface number of the associated Audio Streaming interface. */
} USB_Audio_StdDescriptor_Interface_AC_t;
/** \brief Audio class-specific Feature Unit Descriptor (LUFA naming conventions).
*
* Type define for an Audio class-specific Feature Unit descriptor. This indicates to the host what features
/** \brief Audio class-specific Feature Unit Descriptor (LUFA naming conventions).
*
* Type define for an Audio class-specific Feature Unit descriptor. This indicates to the host what features
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_Feature.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_Feature.
*/
uint8_t UnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t SourceID; /**< Source ID value of the audio source input into this feature unit. */
uint8_t UnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t SourceID; /**< Source ID value of the audio source input into this feature unit. */
uint8_t ControlSize; /**< Size of each element in the ChanelControlls array. */
uint8_t ChannelControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t ControlSize; /**< Size of each element in the ChanelControlls array. */
uint8_t ChannelControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_FeatureUnit_t;
uint8_t FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_Descriptor_FeatureUnit_t;
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_Feature.
*/
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_Feature.
*/
uint8_t bUnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t bSourceID; /**< Source ID value of the audio source input into this feature unit. */
uint8_t bUnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t bSourceID; /**< Source ID value of the audio source input into this feature unit. */
uint8_t bControlSize; /**< Size of each element in the ChanelControlls array. */
uint8_t bmaControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t bControlSize; /**< Size of each element in the ChanelControlls array. */
uint8_t bmaControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t iFeature; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_FeatureUnit_t;
uint8_t iFeature; /**< Index of a string descriptor describing this descriptor within the device. */
} USB_Audio_StdDescriptor_FeatureUnit_t;
/** \brief Audio class-specific Streaming Audio Interface Descriptor (LUFA naming conventions).
*
* Type define for an Audio class-specific streaming interface descriptor. This indicates to the host
/** \brief Audio class-specific Streaming Audio Interface Descriptor (LUFA naming conventions).
*
* Type define for an Audio class-specific streaming interface descriptor. This indicates to the host
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSInterface_AS_SubTypes_t enum.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSInterface_AS_SubTypes_t enum.
*/
uint8_t FrameDelay; /**< Delay in frames resulting from the complete sample processing from input to output. */
uint16_t AudioFormat; /**< Format of the audio stream, see Audio Device Formats specification. */
} USB_Audio_Descriptor_Interface_AS_t;
uint8_t FrameDelay; /**< Delay in frames resulting from the complete sample processing from input to output. */
uint16_t AudioFormat; /**< Format of the audio stream, see Audio Device Formats specification. */
} USB_Audio_Descriptor_Interface_AS_t;
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSInterface_AS_SubTypes_t enum.
*/
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSInterface_AS_SubTypes_t enum.
*/
uint8_t bDelay; /**< Delay in frames resulting from the complete sample processing from input to output. */
uint16_t wFormatTag; /**< Format of the audio stream, see Audio Device Formats specification. */
} USB_Audio_StdDescriptor_Interface_AS_t;
uint8_t bDelay; /**< Delay in frames resulting from the complete sample processing from input to output. */
uint16_t wFormatTag; /**< Format of the audio stream, see Audio Device Formats specification. */
} USB_Audio_StdDescriptor_Interface_AS_t;
/** \brief 24-Bit Audio Frequency Structure.
*
* Type define for a 24bit audio sample frequency structure. GCC does not contain a built in 24bit datatype,
/** \brief 24-Bit Audio Frequency Structure.
*
* Type define for a 24bit audio sample frequency structure. GCC does not contain a built in 24bit datatype,
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_FormatType.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* must be \ref AUDIO_DSUBTYPE_CSInterface_FormatType.
*/
uint8_t FormatType; /**< Format of the audio stream, see Audio Device Formats specification. */
uint8_t Channels; /**< Total number of discrete channels in the stream. */
uint8_t FormatType; /**< Format of the audio stream, see Audio Device Formats specification. */
uint8_t Channels; /**< Total number of discrete channels in the stream. */
uint8_t SubFrameSize; /**< Size in bytes of each channel's sample data in the stream. */
uint8_t BitResolution; /**< Bits of resolution of each channel's samples in the stream. */
uint8_t SubFrameSize; /**< Size in bytes of each channel's sample data in the stream. */
uint8_t BitResolution; /**< Bits of resolution of each channel's samples in the stream. */
USB_Audio_SampleFreq_t SampleFrequencies[AUDIO_TOTAL_SAMPLE_RATES]; /**< Sample frequencies supported by the device (must be 24-bit). */
} USB_Audio_Descriptor_Format_t;
USB_Audio_SampleFreq_t SampleFrequencies[AUDIO_TOTAL_SAMPLE_RATES]; /**< Sample frequencies supported by the device (must be 24-bit). */
} USB_Audio_Descriptor_Format_t;
uint8_t bFormatType; /**< Format of the audio stream, see Audio Device Formats specification. */
uint8_t bNrChannels; /**< Total number of discrete channels in the stream. */
uint8_t bFormatType; /**< Format of the audio stream, see Audio Device Formats specification. */
uint8_t bNrChannels; /**< Total number of discrete channels in the stream. */
uint8_t bSubFrameSize; /**< Size in bytes of each channel's sample data in the stream. */
uint8_t bBitResolution; /**< Bits of resolution of each channel's samples in the stream. */
uint8_t bSubFrameSize; /**< Size in bytes of each channel's sample data in the stream. */
uint8_t bBitResolution; /**< Bits of resolution of each channel's samples in the stream. */
uint8_t SampleFrequencies[AUDIO_TOTAL_SAMPLE_RATES * 3]; /**< Sample frequencies supported by the device (must be 24-bit). */
} USB_Audio_StdDescriptor_Format_t;
uint8_t SampleFrequencies[AUDIO_TOTAL_SAMPLE_RATES * 3]; /**< Sample frequencies supported by the device (must be 24-bit). */
} USB_Audio_StdDescriptor_Format_t;
* descriptor with a few Audio-class-specific extensions. See the USB Audio specification for more details.
*
* \see \ref USB_Audio_StdDescriptor_StreamEndpoint_Std_t for the version of this type with standard element names.
* descriptor with a few Audio-class-specific extensions. See the USB Audio specification for more details.
*
* \see \ref USB_Audio_StdDescriptor_StreamEndpoint_Std_t for the version of this type with standard element names.
* descriptor with a few Audio-class-specific extensions. See the USB Audio specification for more details.
*
* \see \ref USB_Audio_Descriptor_StreamEndpoint_Std_t for the version of this type with non-standard LUFA specific
* descriptor with a few Audio-class-specific extensions. See the USB Audio specification for more details.
*
* \see \ref USB_Audio_Descriptor_StreamEndpoint_Std_t for the version of this type with non-standard LUFA specific
uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a
* value given by the specific class.
*/
uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a
* value given by the specific class.
*/
* and attributes (ENDPOINT_ATTR_*) masks.
*/
uint16_t wMaxPacketSize; /**< Size of the endpoint bank, in bytes. This indicates the maximum packet size
* and attributes (ENDPOINT_ATTR_*) masks.
*/
uint16_t wMaxPacketSize; /**< Size of the endpoint bank, in bytes. This indicates the maximum packet size
uint8_t bRefresh; /**< Always set to zero for Audio class devices. */
uint8_t bSynchAddress; /**< Endpoint address to send synchronization information to, if needed (zero otherwise). */
} USB_Audio_StdDescriptor_StreamEndpoint_Std_t;
uint8_t bRefresh; /**< Always set to zero for Audio class devices. */
uint8_t bSynchAddress; /**< Endpoint address to send synchronization information to, if needed (zero otherwise). */
} USB_Audio_StdDescriptor_StreamEndpoint_Std_t;
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
uint8_t Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
uint8_t Attributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
uint8_t LockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint8_t Attributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
uint8_t LockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors,
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
uint8_t bmAttributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
uint8_t bLockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint16_t wLockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry. */
} USB_Audio_StdDescriptor_StreamEndpoint_Spc_t;
uint8_t bmAttributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
uint8_t bLockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint16_t wLockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry. */
} USB_Audio_StdDescriptor_StreamEndpoint_Spc_t;
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