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@ -168,7 +168,7 @@
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uint8_t InCollection; /**< Total number of audio class interfaces within this device */
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uint8_t InCollection; /**< Total number of audio class interfaces within this device */
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uint8_t InterfaceNumbers[1]; /**< Interface numbers of each audio interface */
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uint8_t InterfaceNumbers[1]; /**< Interface numbers of each audio interface */
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} USB_AudioInterface_AC_t;
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} USB_Audio_Interface_AC_t;
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/** Type define for an Audio class specific Feature Unit descriptor. This indicates to the host what features
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/** Type define for an Audio class specific Feature Unit descriptor. This indicates to the host what features
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* are present in the device's audio stream for basic control, such as per-channel volume. See the USB Audio
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* are present in the device's audio stream for basic control, such as per-channel volume. See the USB Audio
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@ -186,7 +186,7 @@
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uint8_t ChannelControls[3]; /**< Feature masks for the control channel, and each separate audio channel */
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uint8_t ChannelControls[3]; /**< Feature masks for the control channel, and each separate audio channel */
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uint8_t FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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uint8_t FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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} USB_AudioFeatureUnit_t;
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} USB_Audio_FeatureUnit_t;
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/** Type define for an Audio class specific input terminal descriptor. This indicates to the host that the device
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/** Type define for an Audio class specific input terminal descriptor. This indicates to the host that the device
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* contains an input audio source, either from a physical terminal on the device, or a logical terminal (for example,
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* contains an input audio source, either from a physical terminal on the device, or a logical terminal (for example,
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@ -207,7 +207,7 @@
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uint8_t ChannelStrIndex; /**< Index of a string descriptor describing this channel within the device */
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uint8_t ChannelStrIndex; /**< Index of a string descriptor describing this channel within the device */
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uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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} USB_AudioInputTerminal_t;
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} USB_Audio_InputTerminal_t;
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/** Type define for an Audio class specific output terminal descriptor. This indicates to the host that the device
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/** Type define for an Audio class specific output terminal descriptor. This indicates to the host that the device
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* contains an output audio sink, either to a physical terminal on the device, or a logical terminal (for example,
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* contains an output audio sink, either to a physical terminal on the device, or a logical terminal (for example,
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@ -226,7 +226,7 @@
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uint8_t SourceID; /**< ID value of the unit this terminal's audio is sourced from */
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uint8_t SourceID; /**< ID value of the unit this terminal's audio is sourced from */
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uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
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} USB_AudioOutputTerminal_t;
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} USB_Audio_OutputTerminal_t;
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/** Type define for an Audio class specific streaming interface descriptor. This indicates to the host
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/** Type define for an Audio class specific streaming interface descriptor. This indicates to the host
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* how audio streams within the device are formatted. See the USB Audio specification for more details.
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* how audio streams within the device are formatted. See the USB Audio specification for more details.
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@ -240,7 +240,7 @@
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uint8_t FrameDelay; /**< Delay in frames resulting from the complete sample processing from input to output */
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uint8_t FrameDelay; /**< Delay in frames resulting from the complete sample processing from input to output */
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uint16_t AudioFormat; /**< Format of the audio stream, see Audio Device Formats specification */
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uint16_t AudioFormat; /**< Format of the audio stream, see Audio Device Formats specification */
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} USB_AudioInterface_AS_t;
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} USB_Audio_Interface_AS_t;
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/** Type define for a 24bit audio sample frequency structure. GCC does not contain a built in 24bit datatype,
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/** Type define for a 24bit audio sample frequency structure. GCC does not contain a built in 24bit datatype,
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* this this structure is used to build up the value instead. Fill this structure with the SAMPLE_FREQ() macro.
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* this this structure is used to build up the value instead. Fill this structure with the SAMPLE_FREQ() macro.
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@ -249,7 +249,7 @@
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{
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{
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uint16_t LowWord; /**< Low 16 bits of the 24-bit value */
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uint16_t LowWord; /**< Low 16 bits of the 24-bit value */
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uint8_t HighByte; /**< Upper 8 bits of the 24-bit value */
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uint8_t HighByte; /**< Upper 8 bits of the 24-bit value */
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} AudioSampleFreq_t;
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} Audio_SampleFreq_t;
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/** Type define for an Audio class specific audio format descriptor. This is used to give the host full details
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/** Type define for an Audio class specific audio format descriptor. This is used to give the host full details
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* about the number of channels, the sample resolution, acceptable sample frequencies and encoding method used
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* about the number of channels, the sample resolution, acceptable sample frequencies and encoding method used
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@ -267,8 +267,8 @@
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uint8_t BitResolution; /**< Bits of resolution of each channel's samples in the stream */
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uint8_t BitResolution; /**< Bits of resolution of each channel's samples in the stream */
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uint8_t SampleFrequencyType; /**< Total number of sample frequencies supported by the device */
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uint8_t SampleFrequencyType; /**< Total number of sample frequencies supported by the device */
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AudioSampleFreq_t SampleFrequencies[1]; /**< Sample frequencies supported by the device */
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Audio_SampleFreq_t SampleFrequencies[1]; /**< Sample frequencies supported by the device */
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} USB_AudioFormat_t;
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} USB_Audio_Format_t;
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/** Type define for an Audio class specific endpoint descriptor. This contains a regular endpoint
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/** Type define for an Audio class specific endpoint descriptor. This contains a regular endpoint
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* descriptor with a few Audio-class specific extensions. See the USB Audio specification for more details.
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* descriptor with a few Audio-class specific extensions. See the USB Audio specification for more details.
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@ -279,7 +279,7 @@
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uint8_t Refresh; /**< Always set to zero */
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uint8_t Refresh; /**< Always set to zero */
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uint8_t SyncEndpointNumber; /**< Endpoint address to send synchronisation information to, if needed (zero otherwise) */
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uint8_t SyncEndpointNumber; /**< Endpoint address to send synchronisation information to, if needed (zero otherwise) */
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} USB_AudioStreamEndpoint_Std_t;
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} USB_Audio_StreamEndpoint_Std_t;
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/** Type define for an Audio class specific extended endpoint descriptor. This contains extra information
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/** Type define for an Audio class specific extended endpoint descriptor. This contains extra information
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* on the usage of endpoints used to stream audio in and out of the USB Audio device, and follows an Audio
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* on the usage of endpoints used to stream audio in and out of the USB Audio device, and follows an Audio
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@ -294,7 +294,7 @@
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uint8_t LockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification */
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uint8_t LockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification */
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uint16_t LockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry */
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uint16_t LockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry */
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} USB_AudioStreamEndpoint_Spc_t;
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} USB_Audio_StreamEndpoint_Spc_t;
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/** Type define for the device configuration descriptor structure. This must be defined in the
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/** Type define for the device configuration descriptor structure. This must be defined in the
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* application code, as the configuration descriptor contains several sub-descriptors which
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* application code, as the configuration descriptor contains several sub-descriptors which
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@ -304,15 +304,15 @@
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{
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{
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USB_Descriptor_Configuration_Header_t Config;
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USB_Descriptor_Configuration_Header_t Config;
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USB_Descriptor_Interface_t AudioControlInterface;
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USB_Descriptor_Interface_t AudioControlInterface;
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USB_AudioInterface_AC_t AudioControlInterface_SPC;
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USB_Audio_Interface_AC_t AudioControlInterface_SPC;
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USB_AudioInputTerminal_t InputTerminal;
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USB_Audio_InputTerminal_t InputTerminal;
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USB_AudioOutputTerminal_t OutputTerminal;
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USB_Audio_OutputTerminal_t OutputTerminal;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt0;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt0;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt1;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt1;
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USB_AudioInterface_AS_t AudioStreamInterface_SPC;
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USB_Audio_Interface_AS_t AudioStreamInterface_SPC;
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USB_AudioFormat_t AudioFormat;
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USB_Audio_Format_t AudioFormat;
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USB_AudioStreamEndpoint_Std_t AudioEndpoint;
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USB_Audio_StreamEndpoint_Std_t AudioEndpoint;
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USB_AudioStreamEndpoint_Spc_t AudioEndpoint_SPC;
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USB_Audio_StreamEndpoint_Spc_t AudioEndpoint_SPC;
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} USB_Descriptor_Configuration_t;
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} USB_Descriptor_Configuration_t;
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/* Function Prototypes: */
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/* Function Prototypes: */
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Dean Camera
16 years ago