diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Device/Audio.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Device/Audio.h | 344 |
1 files changed, 7 insertions, 337 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/Audio.h b/LUFA/Drivers/USB/Class/Device/Audio.h index 185fa90d9..efffcdafc 100644 --- a/LUFA/Drivers/USB/Class/Device/Audio.h +++ b/LUFA/Drivers/USB/Class/Device/Audio.h @@ -28,26 +28,22 @@ this software.
*/
-/** \ingroup Group_USBDeviceClassDrivers
- * @defgroup Group_USBClassAudioDevice Audio Device Class Driver - LUFA/Drivers/Class/Device/Audio.h
- *
- * \section Sec_Dependencies Module Source Dependencies
- * The following files must be built with any user project that uses this module:
- * - LUFA/Drivers/USB/Class/Device/Audio.c
+/** \ingroup Group_USBClassAudio
+ * @defgroup Group_USBClassAudioDevice Audio Class Device Mode Driver
*
* \section Module Description
- * Functions, macros, variables, enums and types related to the management of USB Audio Class interfaces
- * within a USB device.
+ * Device Mode USB Class driver framework interface, for the Audio USB Class driver.
*
* @{
*/
-#ifndef _AUDIO_CLASS_H_
-#define _AUDIO_CLASS_H_
+#ifndef _AUDIO_CLASS_DEVICE_H_
+#define _AUDIO_CLASS_DEVICE_H_
/* Includes: */
#include "../../USB.h"
-
+ #include "../Common/Audio.h"
+
#include <string.h>
/* Enable C linkage for C++ Compilers: */
@@ -55,332 +51,6 @@ extern "C" {
#endif
- /* 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)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_RIGHT_FRONT (1 << 1)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_CENTER_FRONT (1 << 2)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_LOW_FREQ_ENHANCE (1 << 3)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_LEFT_SURROUND (1 << 4)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_RIGHT_SURROUND (1 << 5)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_LEFT_OF_CENTER (1 << 6)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_RIGHT_OF_CENTER (1 << 7)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_SURROUND (1 << 8)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_SIDE_LEFT (1 << 9)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define CHANNEL_SIDE_RIGHT (1 << 10)
-
- /** Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #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)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_VOLUME (1 << 1)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_BASS (1 << 2)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_MID (1 << 3)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_TREBLE (1 << 4)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_GRAPHIC_EQUALIZER (1 << 5)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_AUTOMATIC_GAIN (1 << 6)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_DELAY (1 << 7)
-
- /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #define FEATURE_BASS_BOOST (1 << 8)
- - /** Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details. */
- #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
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_STREAMING 0x0101
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_VENDOR 0x01FF
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_UNDEFINED 0x0200
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_MIC 0x0201
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_DESKTOP_MIC 0x0202
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_PERSONAL_MIC 0x0203
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_OMNIDIR_MIC 0x0204
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_MIC_ARRAY 0x0205
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_PROCESSING_MIC 0x0206
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_IN_OUT_UNDEFINED 0x0300
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_SPEAKER 0x0301
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_HEADPHONES 0x0302
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_HEAD_MOUNTED 0x0303
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_DESKTOP 0x0304
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_ROOM 0x0305
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #define TERMINAL_OUT_COMMUNICATION 0x0306
-
- /** Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details. */
- #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 freq Required audio sampling frequency in HZ
- */
- #define AUDIO_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)
-
- /* 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_AudioInterface_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_AudioFeatureUnit_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_AudioInputTerminal_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_AudioOutputTerminal_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_AudioInterface_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 */
- } AudioSampleFreq_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 */
- AudioSampleFreq_t SampleFrequencies[1]; /**< Sample frequencies supported by the device */
- } USB_AudioFormat_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_AudioStreamEndpoint_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_AudioStreamEndpoint_Spc_t;
-
- /** Class state structure. An instance of this structure should be made for each Audio interface
- * within the user application, and passed to each of the Audio class driver functions as the
- * AudioInterfaceInfo parameter. The contents of this structure should be set to their correct
- * values when used, or ommitted to force the library to use default values.
- */
- typedef struct
- {
- uint8_t StreamingInterfaceNumber; /**< Index of the Audio Streaming interface within the device this structure controls */
-
- uint8_t DataINEndpointNumber; /**< Endpoint number of the incomming Audio Streaming data, if available (zero if unused) */
- uint16_t DataINEndpointSize; /**< Size in bytes of the incomming Audio Streaming data endpoint, if available (zero if unused) */
-
- uint8_t DataOUTEndpointNumber; /**< Endpoint number of the outgoing Audio Streaming data, if available (zero if unused) */
- uint16_t DataOUTEndpointSize; /**< Size in bytes of the outgoing Audio Streaming data endpoint, if available (zero if unused) */
-
- bool InterfaceEnabled; /**< Set and cleared by the class driver to indicate if the host has enabled the streaming endpoints
- * of the Audio Streaming interface
- */
- } USB_ClassInfo_Audio_t;
-
/* Function Prototypes: */
/** Configures the endpoints of a given Audio interface, ready for use. This should be linked to the library
* \ref EVENT_USB_ConfigurationChanged() event so that the endpoints are configured when the configuration containing the
|