X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/41babf1cb78a2a8e05f40f5de61c3f52bb794fc4..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/Demos/Device/LowLevel/AudioInput/Descriptors.h?ds=inline diff --git a/Demos/Device/LowLevel/AudioInput/Descriptors.h b/Demos/Device/LowLevel/AudioInput/Descriptors.h index 3a3174b9b..aa551b00c 100644 --- a/Demos/Device/LowLevel/AudioInput/Descriptors.h +++ b/Demos/Device/LowLevel/AudioInput/Descriptors.h @@ -1,318 +1,86 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, provided that the above copyright notice appear in all - copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Header file for Descriptors.c. - */ - -#ifndef _DESCRIPTORS_H_ -#define _DESCRIPTORS_H_ - - /* Includes: */ - #include - - #include - - /* Macros: */ - /** Descriptor header constant to indicate a Audio class interface descriptor. */ - #define DTYPE_AudioInterface 0x24 - - /** Descriptor header constant to indicate a Audio class endpoint descriptor. */ - #define DTYPE_AudioEndpoint 0x25 - - /** Audio class descriptor subtype value for a Audio class specific header descriptor. */ - #define DSUBTYPE_Header 0x01 - - /** Audio class descriptor subtype value for an Output Terminal Audio class specific descriptor. */ - #define DSUBTYPE_InputTerminal 0x02 - - /** Audio class descriptor subtype value for an Input Terminal Audio class specific descriptor. */ - #define DSUBTYPE_OutputTerminal 0x03 - - /** Audio class descriptor subtype value for a Feature Unit Audio class specific descriptor. */ - #define DSUBTYPE_FeatureUnit 0x06 - - /** Audio class descriptor subtype value for a general Audio class specific descriptor. */ - #define DSUBTYPE_General 0x01 - - /** Audio class descriptor subtype value for an Audio class specific descriptor indicating the format of an audio stream. */ - #define DSUBTYPE_Format 0x02 - - //@{ - /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */ - - #define CHANNEL_LEFT_FRONT (1 << 0) - #define CHANNEL_RIGHT_FRONT (1 << 1) - #define CHANNEL_CENTER_FRONT (1 << 2) - #define CHANNEL_LOW_FREQ_ENHANCE (1 << 3) - #define CHANNEL_LEFT_SURROUND (1 << 4) - #define CHANNEL_RIGHT_SURROUND (1 << 5) - #define CHANNEL_LEFT_OF_CENTER (1 << 6) - #define CHANNEL_RIGHT_OF_CENTER (1 << 7) - #define CHANNEL_SURROUND (1 << 8) - #define CHANNEL_SIDE_LEFT (1 << 9) - #define CHANNEL_SIDE_RIGHT (1 << 10) - #define CHANNEL_TOP (1 << 11) - //@} - - //@{ - /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */ - - #define FEATURE_MUTE (1 << 0) - #define FEATURE_VOLUME (1 << 1) - #define FEATURE_BASS (1 << 2) - #define FEATURE_MID (1 << 3) - #define FEATURE_TREBLE (1 << 4) - #define FEATURE_GRAPHIC_EQUALIZER (1 << 5) - #define FEATURE_AUTOMATIC_GAIN (1 << 6) - #define FEATURE_DELAY (1 << 7) - #define FEATURE_BASS_BOOST (1 << 8) - #define FEATURE_BASS_LOUDNESS (1 << 9) - //@} - - //@{ - /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */ - - #define TERMINAL_UNDEFINED 0x0100 - #define TERMINAL_STREAMING 0x0101 - #define TERMINAL_VENDOR 0x01FF - #define TERMINAL_IN_UNDEFINED 0x0200 - #define TERMINAL_IN_MIC 0x0201 - #define TERMINAL_IN_DESKTOP_MIC 0x0202 - #define TERMINAL_IN_PERSONAL_MIC 0x0203 - #define TERMINAL_IN_OMNIDIR_MIC 0x0204 - #define TERMINAL_IN_MIC_ARRAY 0x0205 - #define TERMINAL_IN_PROCESSING_MIC 0x0206 - #define TERMINAL_IN_OUT_UNDEFINED 0x0300 - #define TERMINAL_OUT_SPEAKER 0x0301 - #define TERMINAL_OUT_HEADPHONES 0x0302 - #define TERMINAL_OUT_HEAD_MOUNTED 0x0303 - #define TERMINAL_OUT_DESKTOP 0x0304 - #define TERMINAL_OUT_ROOM 0x0305 - #define TERMINAL_OUT_COMMUNICATION 0x0306 - #define TERMINAL_OUT_LOWFREQ 0x0307 - //@} - - /** Convenience macro, to fill a 24-bit AudioSampleFreq_t structure with the given sample rate as a 24-bit number. - * - * \param[in] freq Required audio sampling frequency in HZ - */ - #define SAMPLE_FREQ(freq) {LowWord: ((uint32_t)freq & 0x00FFFF), HighByte: (((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. - */ - #define EP_ACCEPTS_ONLY_FULL_PACKETS (1 << 7) - - /** Mask for the attributes parameter of an Audio class specific Endpoint descriptor, indicating that the endpoint - * will accept partially filled endpoint packets of audio samples. - */ - #define EP_ACCEPTS_SMALL_PACKETS (0 << 7) - - /** Endpoint number of the Audio isochronous streaming data endpoint. */ - #define AUDIO_STREAM_EPNUM 1 - - /** Endpoint size in bytes of the Audio isochronous streaming data endpoint. The Windows audio stack requires - * at least 192 bytes for correct output, thus the smaller 128 byte maximum endpoint size on some of the smaller - * USB AVR models will result in unavoidable distorted output. - */ - #define AUDIO_STREAM_EPSIZE ENDPOINT_MAX_SIZE(AUDIO_STREAM_EPNUM) - - /** Sample frequency of the data being transmitted through the streaming endpoint. */ - #define AUDIO_SAMPLE_FREQUENCY 48000 - - /* Type Defines: */ - /** Type define for an Audio class specific interface descriptor. This follows a regular interface descriptor to - * supply extra information about the audio device's layout to the host. See the USB Audio specification for more - * details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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 class interfaces within this device */ - uint8_t InterfaceNumbers[1]; /**< Interface numbers of each audio interface */ - } USB_Audio_Interface_AC_t; - - /** Type define for an Audio class specific Feature Unit descriptor. This indicates to the host what features - * are present in the device's audio stream for basic control, such as per-channel volume. See the USB Audio - * specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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 FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device */ - } USB_Audio_FeatureUnit_t; - - /** Type define for an Audio class specific input terminal descriptor. This indicates to the host that the device - * contains an input audio source, either from a physical terminal on the device, or a logical terminal (for example, - * a USB endpoint). See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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 - * such as the speaker and microphone of a phone handset - */ - 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_InputTerminal_t; - - /** Type define for an Audio class specific output terminal descriptor. This indicates to the host that the device - * contains an output audio sink, either to a physical terminal on the device, or a logical terminal (for example, - * a USB endpoint). See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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_OutputTerminal_t; - - /** Type define for an Audio class specific streaming interface descriptor. This indicates to the host - * how audio streams within the device are formatted. See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - uint8_t TerminalLink; /**< ID value of the output terminal this descriptor is describing */ - - 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_Interface_AS_t; - - /** Type define for a 24bit audio sample frequency structure. GCC does not contain a built in 24bit datatype, - * this this structure is used to build up the value instead. Fill this structure with the SAMPLE_FREQ() macro. - */ - typedef struct - { - uint16_t LowWord; /**< Low 16 bits of the 24-bit value */ - uint8_t HighByte; /**< Upper 8 bits of the 24-bit value */ - } Audio_SampleFreq_t; - - /** Type define for an Audio class specific audio format descriptor. This is used to give the host full details - * about the number of channels, the sample resolution, acceptable sample frequencies and encoding method used - * in the device's audio streams. See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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 SampleFrequencyType; /**< Total number of sample frequencies supported by the device */ - Audio_SampleFreq_t SampleFrequencies[1]; /**< Sample frequencies supported by the device */ - } USB_Audio_Format_t; - - /** Type define for an Audio class specific endpoint descriptor. This contains a regular endpoint - * descriptor with a few Audio-class specific extensions. See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Endpoint_t Endpoint; /**< Standard endpoint descriptor describing the audio endpoint */ - - uint8_t Refresh; /**< Always set to zero */ - uint8_t SyncEndpointNumber; /**< Endpoint address to send synchronisation information to, if needed (zero otherwise) */ - } USB_Audio_StreamEndpoint_Std_t; - - /** Type define for an Audio class specific extended endpoint descriptor. This contains extra information - * on the usage of endpoints used to stream audio in and out of the USB Audio device, and follows an Audio - * class specific extended endpoint descriptor. See the USB Audio specification for more details. - */ - typedef struct - { - USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */ - uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */ - - 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 */ - uint16_t LockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry */ - } USB_Audio_StreamEndpoint_Spc_t; - - /** Type define for the device configuration descriptor structure. This must be defined in the - * application code, as the configuration descriptor contains several sub-descriptors which - * vary between devices, and which describe the device's usage to the host. - */ - typedef struct - { - USB_Descriptor_Configuration_Header_t Config; - USB_Descriptor_Interface_t AudioControlInterface; - USB_Audio_Interface_AC_t AudioControlInterface_SPC; - USB_Audio_InputTerminal_t InputTerminal; - USB_Audio_OutputTerminal_t OutputTerminal; - USB_Descriptor_Interface_t AudioStreamInterface_Alt0; - USB_Descriptor_Interface_t AudioStreamInterface_Alt1; - USB_Audio_Interface_AS_t AudioStreamInterface_SPC; - USB_Audio_Format_t AudioFormat; - USB_Audio_StreamEndpoint_Std_t AudioEndpoint; - USB_Audio_StreamEndpoint_Spc_t AudioEndpoint_SPC; - } USB_Descriptor_Configuration_t; - - /* Function Prototypes: */ - uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress) - ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); - -#endif +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header file for Descriptors.c. + */ + +#ifndef _DESCRIPTORS_H_ +#define _DESCRIPTORS_H_ + + /* Includes: */ + #include + + #include + + /* Macros: */ + /** Endpoint number of the Audio isochronous streaming data endpoint. */ + #define AUDIO_STREAM_EPNUM 1 + + /** Endpoint size in bytes of the Audio isochronous streaming data endpoint. The Windows audio stack requires + * at least 192 bytes for correct output, thus the smaller 128 byte maximum endpoint size on some of the smaller + * USB AVR models will result in unavoidable distorted output. + */ + #define AUDIO_STREAM_EPSIZE ENDPOINT_MAX_SIZE(AUDIO_STREAM_EPNUM) + + /* Type Defines: */ + /** Type define for the device configuration descriptor structure. This must be defined in the + * application code, as the configuration descriptor contains several sub-descriptors which + * vary between devices, and which describe the device's usage to the host. + */ + typedef struct + { + USB_Descriptor_Configuration_Header_t Config; + + // Audio Control Interface + USB_Descriptor_Interface_t Audio_ControlInterface; + USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC; + USB_Audio_Descriptor_InputTerminal_t Audio_InputTerminal; + USB_Audio_Descriptor_OutputTerminal_t Audio_OutputTerminal; + + // Audio Streaming Interface + USB_Descriptor_Interface_t Audio_StreamInterface_Alt0; + USB_Descriptor_Interface_t Audio_StreamInterface_Alt1; + USB_Audio_Descriptor_Interface_AS_t Audio_StreamInterface_SPC; + USB_Audio_Descriptor_Format_t Audio_AudioFormat; + USB_Audio_SampleFreq_t Audio_AudioFormatSampleRates[5]; + USB_Audio_Descriptor_StreamEndpoint_Std_t Audio_StreamEndpoint; + USB_Audio_Descriptor_StreamEndpoint_Spc_t Audio_StreamEndpoint_SPC; + } USB_Descriptor_Configuration_t; + + /* Function Prototypes: */ + uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, + const uint8_t wIndex, + const void** const DescriptorAddress) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); + +#endif +