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/*
* The MIT License ( MIT )
*
* Copyright ( c ) 2019 Ha Thach ( tinyusb . org )
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* Copyright ( c ) 2020 Reinhard Panhuber
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*
* Permission is hereby granted , free of charge , to any person obtaining a copy
* of this software and associated documentation files ( the " Software " ) , to deal
* in the Software without restriction , including without limitation the rights
* to use , copy , modify , merge , publish , distribute , sublicense , and / or sell
* copies of the Software , and to permit persons to whom the Software is
* furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER
* LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING FROM ,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE .
*
* This file is part of the TinyUSB stack .
*/
/** \ingroup group_class
* \ defgroup ClassDriver_Audio Audio
* Currently only MIDI subclass is supported
* @ { */
# ifndef _TUSB_AUDIO_H__
# define _TUSB_AUDIO_H__
# include "common/tusb_common.h"
# ifdef __cplusplus
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extern " C " {
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# endif
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/// Audio Device Class Codes
/// A.2 - Audio Function Subclass Codes
typedef enum
{
AUDIO_FUNCTION_SUBCLASS_UNDEFINED = 0x00 ,
} audio_function_subclass_type_t ;
/// A.3 - Audio Function Protocol Codes
typedef enum
{
AUDIO_FUNC_PROTOCOL_CODE_UNDEF = 0x00 ,
AUDIO_FUNC_PROTOCOL_CODE_V2 = 0x20 , ///< Version 2.0
} audio_function_protocol_code_t ;
/// A.5 - Audio Interface Subclass Codes
typedef enum
{
AUDIO_SUBCLASS_UNDEFINED = 0x00 ,
AUDIO_SUBCLASS_CONTROL , ///< Audio Control
AUDIO_SUBCLASS_STREAMING , ///< Audio Streaming
AUDIO_SUBCLASS_MIDI_STREAMING , ///< MIDI Streaming
} audio_subclass_type_t ;
/// A.6 - Audio Interface Protocol Codes
typedef enum
{
AUDIO_INT_PROTOCOL_CODE_UNDEF = 0x00 ,
AUDIO_INT_PROTOCOL_CODE_V2 = 0x20 , ///< Version 2.0
} audio_interface_protocol_code_t ;
/// A.7 - Audio Function Category Codes
typedef enum
{
AUDIO_FUNC_UNDEF = 0x00 ,
AUDIO_FUNC_DESKTOP_SPEAKER = 0x01 ,
AUDIO_FUNC_HOME_THEATER = 0x02 ,
AUDIO_FUNC_MICROPHONE = 0x03 ,
AUDIO_FUNC_HEADSET = 0x04 ,
AUDIO_FUNC_TELEPHONE = 0x05 ,
AUDIO_FUNC_CONVERTER = 0x06 ,
AUDIO_FUNC_SOUND_RECODER = 0x07 ,
AUDIO_FUNC_IO_BOX = 0x08 ,
AUDIO_FUNC_MUSICAL_INSTRUMENT = 0x09 ,
AUDIO_FUNC_PRO_AUDIO = 0x0A ,
AUDIO_FUNC_AUDIO_VIDEO = 0x0B ,
AUDIO_FUNC_CONTROL_PANEL = 0x0C ,
AUDIO_FUNC_OTHER = 0xFF ,
} audio_function_code_t ;
/// A.9 - Audio Class-Specific AC Interface Descriptor Subtypes UAC2
typedef enum
{
AUDIO_CS_AC_INTERFACE_AC_DESCRIPTOR_UNDEF = 0x00 ,
AUDIO_CS_AC_INTERFACE_HEADER = 0x01 ,
AUDIO_CS_AC_INTERFACE_INPUT_TERMINAL = 0x02 ,
AUDIO_CS_AC_INTERFACE_OUTPUT_TERMINAL = 0x03 ,
AUDIO_CS_AC_INTERFACE_MIXER_UNIT = 0x04 ,
AUDIO_CS_AC_INTERFACE_SELECTOR_UNIT = 0x05 ,
AUDIO_CS_AC_INTERFACE_FEATURE_UNIT = 0x06 ,
AUDIO_CS_AC_INTERFACE_EFFECT_UNIT = 0x07 ,
AUDIO_CS_AC_INTERFACE_PROCESSING_UNIT = 0x08 ,
AUDIO_CS_AC_INTERFACE_EXTENSION_UNIT = 0x09 ,
AUDIO_CS_AC_INTERFACE_CLOCK_SOURCE = 0x0A ,
AUDIO_CS_AC_INTERFACE_CLOCK_SELECTOR = 0x0B ,
AUDIO_CS_AC_INTERFACE_CLOCK_MULTIPLIER = 0x0C ,
AUDIO_CS_AC_INTERFACE_SAMPLE_RATE_CONVERTER = 0x0D ,
} audio_cs_ac_interface_subtype_t ;
/// A.10 - Audio Class-Specific AS Interface Descriptor Subtypes UAC2
typedef enum
{
AUDIO_CS_AS_INTERFACE_AS_DESCRIPTOR_UNDEF = 0x00 ,
AUDIO_CS_AS_INTERFACE_AS_GENERAL = 0x01 ,
AUDIO_CS_AS_INTERFACE_FORMAT_TYPE = 0x02 ,
AUDIO_CS_AS_INTERFACE_ENCODER = 0x03 ,
AUDIO_CS_AS_INTERFACE_DECODER = 0x04 ,
} audio_cs_as_interface_subtype_t ;
/// A.11 - Effect Unit Effect Types
typedef enum
{
AUDIO_EFFECT_TYPE_UNDEF = 0x00 ,
AUDIO_EFFECT_TYPE_PARAM_EQ_SECTION = 0x01 ,
AUDIO_EFFECT_TYPE_REVERBERATION = 0x02 ,
AUDIO_EFFECT_TYPE_MOD_DELAY = 0x03 ,
AUDIO_EFFECT_TYPE_DYN_RANGE_COMP = 0x04 ,
} audio_effect_unit_effect_type_t ;
/// A.12 - Processing Unit Process Types
typedef enum
{
AUDIO_PROCESS_TYPE_UNDEF = 0x00 ,
AUDIO_PROCESS_TYPE_UP_DOWN_MIX = 0x01 ,
AUDIO_PROCESS_TYPE_DOLBY_PROLOGIC = 0x02 ,
AUDIO_PROCESS_TYPE_STEREO_EXTENDER = 0x03 ,
} audio_processing_unit_process_type_t ;
/// A.13 - Audio Class-Specific EP Descriptor Subtypes UAC2
typedef enum
{
AUDIO_CS_EP_SUBTYPE_UNDEF = 0x00 ,
AUDIO_CS_EP_SUBTYPE_GENERAL = 0x01 ,
} audio_cs_ep_subtype_t ;
/// A.14 - Audio Class-Specific Request Codes
typedef enum
{
AUDIO_CS_REQ_UNDEF = 0x00 ,
AUDIO_CS_REQ_CUR = 0x01 ,
AUDIO_CS_REQ_RANGE = 0x02 ,
AUDIO_CS_REQ_MEM = 0x03 ,
} audio_cs_req_t ;
/// A.17 - Control Selector Codes
/// A.17.1 - Clock Source Control Selectors
typedef enum
{
AUDIO_CS_CTRL_UNDEF = 0x00 ,
AUDIO_CS_CTRL_SAM_FREQ = 0x01 ,
AUDIO_CS_CTRL_CLK_VALID = 0x02 ,
} audio_clock_src_control_selector_t ;
/// A.17.2 - Clock Selector Control Selectors
typedef enum
{
AUDIO_CX_CTRL_UNDEF = 0x00 ,
AUDIO_CX_CTRL_CONTROL = 0x01 ,
} audio_clock_sel_control_selector_t ;
/// A.17.3 - Clock Multiplier Control Selectors
typedef enum
{
AUDIO_CM_CTRL_UNDEF = 0x00 ,
AUDIO_CM_CTRL_NUMERATOR_CONTROL = 0x01 ,
AUDIO_CM_CTRL_DENOMINATOR_CONTROL = 0x02 ,
} audio_clock_mul_control_selector_t ;
/// A.17.4 - Terminal Control Selectors
typedef enum
{
AUDIO_TE_CTRL_UNDEF = 0x00 ,
AUDIO_TE_CTRL_COPY_PROTECT = 0x01 ,
AUDIO_TE_CTRL_CONNECTOR = 0x02 ,
AUDIO_TE_CTRL_OVERLOAD = 0x03 ,
AUDIO_TE_CTRL_CLUSTER = 0x04 ,
AUDIO_TE_CTRL_UNDERFLOW = 0x05 ,
AUDIO_TE_CTRL_OVERFLOW = 0x06 ,
AUDIO_TE_CTRL_LATENCY = 0x07 ,
} audio_terminal_control_selector_t ;
/// A.17.5 - Mixer Control Selectors
typedef enum
{
AUDIO_MU_CTRL_UNDEF = 0x00 ,
AUDIO_MU_CTRL_MIXER = 0x01 ,
AUDIO_MU_CTRL_CLUSTER = 0x02 ,
AUDIO_MU_CTRL_UNDERFLOW = 0x03 ,
AUDIO_MU_CTRL_OVERFLOW = 0x04 ,
AUDIO_MU_CTRL_LATENCY = 0x05 ,
} audio_mixer_control_selector_t ;
/// A.17.6 - Selector Control Selectors
typedef enum
{
AUDIO_SU_CTRL_UNDEF = 0x00 ,
AUDIO_SU_CTRL_SELECTOR = 0x01 ,
AUDIO_SU_CTRL_LATENCY = 0x02 ,
} audio_sel_control_selector_t ;
/// A.17.7 - Feature Unit Control Selectors
typedef enum
{
AUDIO_FU_CTRL_UNDEF = 0x00 ,
AUDIO_FU_CTRL_MUTE = 0x01 ,
AUDIO_FU_CTRL_VOLUME = 0x02 ,
AUDIO_FU_CTRL_BASS = 0x03 ,
AUDIO_FU_CTRL_MID = 0x04 ,
AUDIO_FU_CTRL_TREBLE = 0x05 ,
AUDIO_FU_CTRL_GRAPHIC_EQUALIZER = 0x06 ,
AUDIO_FU_CTRL_AGC = 0x07 ,
AUDIO_FU_CTRL_DELAY = 0x08 ,
AUDIO_FU_CTRL_BASS_BOOST = 0x09 ,
AUDIO_FU_CTRL_LOUDNESS = 0x0A ,
AUDIO_FU_CTRL_INPUT_GAIN = 0x0B ,
AUDIO_FU_CTRL_GAIN_PAD = 0x0C ,
AUDIO_FU_CTRL_INVERTER = 0x0D ,
AUDIO_FU_CTRL_UNDERFLOW = 0x0E ,
AUDIO_FU_CTRL_OVERVLOW = 0x0F ,
AUDIO_FU_CTRL_LATENCY = 0x10 ,
} audio_feature_unit_control_selector_t ;
/// A.17.8 Effect Unit Control Selectors
/// A.17.8.1 Parametric Equalizer Section Effect Unit Control Selectors
typedef enum
{
AUDIO_PE_CTRL_UNDEF = 0x00 ,
AUDIO_PE_CTRL_ENABLE = 0x01 ,
AUDIO_PE_CTRL_CENTERFREQ = 0x02 ,
AUDIO_PE_CTRL_QFACTOR = 0x03 ,
AUDIO_PE_CTRL_GAIN = 0x04 ,
AUDIO_PE_CTRL_UNDERFLOW = 0x05 ,
AUDIO_PE_CTRL_OVERFLOW = 0x06 ,
AUDIO_PE_CTRL_LATENCY = 0x07 ,
} audio_parametric_equalizer_control_selector_t ;
/// A.17.8.2 Reverberation Effect Unit Control Selectors
typedef enum
{
AUDIO_RV_CTRL_UNDEF = 0x00 ,
AUDIO_RV_CTRL_ENABLE = 0x01 ,
AUDIO_RV_CTRL_TYPE = 0x02 ,
AUDIO_RV_CTRL_LEVEL = 0x03 ,
AUDIO_RV_CTRL_TIME = 0x04 ,
AUDIO_RV_CTRL_FEEDBACK = 0x05 ,
AUDIO_RV_CTRL_PREDELAY = 0x06 ,
AUDIO_RV_CTRL_DENSITY = 0x07 ,
AUDIO_RV_CTRL_HIFREQ_ROLLOFF = 0x08 ,
AUDIO_RV_CTRL_UNDERFLOW = 0x09 ,
AUDIO_RV_CTRL_OVERFLOW = 0x0A ,
AUDIO_RV_CTRL_LATENCY = 0x0B ,
} audio_reverberation_effect_control_selector_t ;
/// A.17.8.3 Modulation Delay Effect Unit Control Selectors
typedef enum
{
AUDIO_MD_CTRL_UNDEF = 0x00 ,
AUDIO_MD_CTRL_ENABLE = 0x01 ,
AUDIO_MD_CTRL_BALANCE = 0x02 ,
AUDIO_MD_CTRL_RATE = 0x03 ,
AUDIO_MD_CTRL_DEPTH = 0x04 ,
AUDIO_MD_CTRL_TIME = 0x05 ,
AUDIO_MD_CTRL_FEEDBACK = 0x06 ,
AUDIO_MD_CTRL_UNDERFLOW = 0x07 ,
AUDIO_MD_CTRL_OVERFLOW = 0x08 ,
AUDIO_MD_CTRL_LATENCY = 0x09 ,
} audio_modulation_delay_control_selector_t ;
/// A.17.8.4 Dynamic Range Compressor Effect Unit Control Selectors
typedef enum
{
AUDIO_DR_CTRL_UNDEF = 0x00 ,
AUDIO_DR_CTRL_ENABLE = 0x01 ,
AUDIO_DR_CTRL_COMPRESSION_RATE = 0x02 ,
AUDIO_DR_CTRL_MAXAMPL = 0x03 ,
AUDIO_DR_CTRL_THRESHOLD = 0x04 ,
AUDIO_DR_CTRL_ATTACK_TIME = 0x05 ,
AUDIO_DR_CTRL_RELEASE_TIME = 0x06 ,
AUDIO_DR_CTRL_UNDERFLOW = 0x07 ,
AUDIO_DR_CTRL_OVERFLOW = 0x08 ,
AUDIO_DR_CTRL_LATENCY = 0x09 ,
} audio_dynamic_range_compression_control_selector_t ;
/// A.17.9 Processing Unit Control Selectors
/// A.17.9.1 Up/Down-mix Processing Unit Control Selectors
typedef enum
{
AUDIO_UD_CTRL_UNDEF = 0x00 ,
AUDIO_UD_CTRL_ENABLE = 0x01 ,
AUDIO_UD_CTRL_MODE_SELECT = 0x02 ,
AUDIO_UD_CTRL_CLUSTER = 0x03 ,
AUDIO_UD_CTRL_UNDERFLOW = 0x04 ,
AUDIO_UD_CTRL_OVERFLOW = 0x05 ,
AUDIO_UD_CTRL_LATENCY = 0x06 ,
} audio_up_down_mix_control_selector_t ;
/// A.17.9.2 Dolby Prologic ™ Processing Unit Control Selectors
typedef enum
{
AUDIO_DP_CTRL_UNDEF = 0x00 ,
AUDIO_DP_CTRL_ENABLE = 0x01 ,
AUDIO_DP_CTRL_MODE_SELECT = 0x02 ,
AUDIO_DP_CTRL_CLUSTER = 0x03 ,
AUDIO_DP_CTRL_UNDERFLOW = 0x04 ,
AUDIO_DP_CTRL_OVERFLOW = 0x05 ,
AUDIO_DP_CTRL_LATENCY = 0x06 ,
} audio_dolby_prologic_control_selector_t ;
/// A.17.9.3 Stereo Extender Processing Unit Control Selectors
typedef enum
{
AUDIO_ST_EXT_CTRL_UNDEF = 0x00 ,
AUDIO_ST_EXT_CTRL_ENABLE = 0x01 ,
AUDIO_ST_EXT_CTRL_WIDTH = 0x02 ,
AUDIO_ST_EXT_CTRL_UNDERFLOW = 0x03 ,
AUDIO_ST_EXT_CTRL_OVERFLOW = 0x04 ,
AUDIO_ST_EXT_CTRL_LATENCY = 0x05 ,
} audio_stereo_extender_control_selector_t ;
/// A.17.10 Extension Unit Control Selectors
typedef enum
{
AUDIO_XU_CTRL_UNDEF = 0x00 ,
AUDIO_XU_CTRL_ENABLE = 0x01 ,
AUDIO_XU_CTRL_CLUSTER = 0x02 ,
AUDIO_XU_CTRL_UNDERFLOW = 0x03 ,
AUDIO_XU_CTRL_OVERFLOW = 0x04 ,
AUDIO_XU_CTRL_LATENCY = 0x05 ,
} audio_extension_unit_control_selector_t ;
/// A.17.11 AudioStreaming Interface Control Selectors
typedef enum
{
AUDIO_AS_CTRL_UNDEF = 0x00 ,
AUDIO_AS_CTRL_ACT_ALT_SETTING = 0x01 ,
AUDIO_AS_CTRL_VAL_ALT_SETTINGS = 0x02 ,
AUDIO_AS_CTRL_AUDIO_DATA_FORMAT = 0x03 ,
} audio_audiostreaming_interface_control_selector_t ;
/// A.17.12 Encoder Control Selectors
typedef enum
{
AUDIO_EN_CTRL_UNDEF = 0x00 ,
AUDIO_EN_CTRL_BIT_RATE = 0x01 ,
AUDIO_EN_CTRL_QUALITY = 0x02 ,
AUDIO_EN_CTRL_VBR = 0x03 ,
AUDIO_EN_CTRL_TYPE = 0x04 ,
AUDIO_EN_CTRL_UNDERFLOW = 0x05 ,
AUDIO_EN_CTRL_OVERFLOW = 0x06 ,
AUDIO_EN_CTRL_ENCODER_ERROR = 0x07 ,
AUDIO_EN_CTRL_PARAM1 = 0x08 ,
AUDIO_EN_CTRL_PARAM2 = 0x09 ,
AUDIO_EN_CTRL_PARAM3 = 0x0A ,
AUDIO_EN_CTRL_PARAM4 = 0x0B ,
AUDIO_EN_CTRL_PARAM5 = 0x0C ,
AUDIO_EN_CTRL_PARAM6 = 0x0D ,
AUDIO_EN_CTRL_PARAM7 = 0x0E ,
AUDIO_EN_CTRL_PARAM8 = 0x0F ,
} audio_encoder_control_selector_t ;
/// A.17.13 Decoder Control Selectors
/// A.17.13.1 MPEG Decoder Control Selectors
typedef enum
{
AUDIO_MPD_CTRL_UNDEF = 0x00 ,
AUDIO_MPD_CTRL_DUAL_CHANNEL = 0x01 ,
AUDIO_MPD_CTRL_SECOND_STEREO = 0x02 ,
AUDIO_MPD_CTRL_MULTILINGUAL = 0x03 ,
AUDIO_MPD_CTRL_DYN_RANGE = 0x04 ,
AUDIO_MPD_CTRL_SCALING = 0x05 ,
AUDIO_MPD_CTRL_HILO_SCALING = 0x06 ,
AUDIO_MPD_CTRL_UNDERFLOW = 0x07 ,
AUDIO_MPD_CTRL_OVERFLOW = 0x08 ,
AUDIO_MPD_CTRL_DECODER_ERROR = 0x09 ,
} audio_MPEG_decoder_control_selector_t ;
/// A.17.13.2 AC-3 Decoder Control Selectors
typedef enum
{
AUDIO_AD_CTRL_UNDEF = 0x00 ,
AUDIO_AD_CTRL_MODE = 0x01 ,
AUDIO_AD_CTRL_DYN_RANGE = 0x02 ,
AUDIO_AD_CTRL_SCALING = 0x03 ,
AUDIO_AD_CTRL_HILO_SCALING = 0x04 ,
AUDIO_AD_CTRL_UNDERFLOW = 0x05 ,
AUDIO_AD_CTRL_OVERFLOW = 0x06 ,
AUDIO_AD_CTRL_DECODER_ERROR = 0x07 ,
} audio_AC3_decoder_control_selector_t ;
/// A.17.13.3 WMA Decoder Control Selectors
typedef enum
{
AUDIO_WD_CTRL_UNDEF = 0x00 ,
AUDIO_WD_CTRL_UNDERFLOW = 0x01 ,
AUDIO_WD_CTRL_OVERFLOW = 0x02 ,
AUDIO_WD_CTRL_DECODER_ERROR = 0x03 ,
} audio_WMA_decoder_control_selector_t ;
/// A.17.13.4 DTS Decoder Control Selectors
typedef enum
{
AUDIO_DD_CTRL_UNDEF = 0x00 ,
AUDIO_DD_CTRL_UNDERFLOW = 0x01 ,
AUDIO_DD_CTRL_OVERFLOW = 0x02 ,
AUDIO_DD_CTRL_DECODER_ERROR = 0x03 ,
} audio_DTS_decoder_control_selector_t ;
/// A.17.14 Endpoint Control Selectors
typedef enum
{
AUDIO_EP_CTRL_UNDEF = 0x00 ,
AUDIO_EP_CTRL_PITCH = 0x01 ,
AUDIO_EP_CTRL_DATA_OVERRUN = 0x02 ,
AUDIO_EP_CTRL_DATA_UNDERRUN = 0x03 ,
} audio_EP_control_selector_t ;
/// Terminal Types
/// 2.1 - Audio Class-Terminal Types UAC2
typedef enum
{
AUDIO_TERM_TYPE_USB_UNDEFINED = 0x0100 ,
AUDIO_TERM_TYPE_USB_STREAMING = 0x0101 ,
AUDIO_TERM_TYPE_USB_VENDOR_SPEC = 0x01FF ,
} audio_terminal_type_t ;
/// 2.2 - Audio Class-Input Terminal Types UAC2
typedef enum
{
AUDIO_TERM_TYPE_IN_UNDEFINED = 0x0200 ,
AUDIO_TERM_TYPE_IN_GENERIC_MIC = 0x0201 ,
AUDIO_TERM_TYPE_IN_DESKTOP_MIC = 0x0202 ,
AUDIO_TERM_TYPE_IN_PERSONAL_MIC = 0x0203 ,
AUDIO_TERM_TYPE_IN_OMNI_MIC = 0x0204 ,
AUDIO_TERM_TYPE_IN_ARRAY_MIC = 0x0205 ,
AUDIO_TERM_TYPE_IN_PROC_ARRAY_MIC = 0x0206 ,
} audio_terminal_input_type_t ;
/// 2.3 - Audio Class-Output Terminal Types UAC2
typedef enum
{
AUDIO_TERM_TYPE_OUT_UNDEFINED = 0x0300 ,
AUDIO_TERM_TYPE_OUT_GENERIC_SPEAKER = 0x0301 ,
AUDIO_TERM_TYPE_OUT_HEADPHONES = 0x0302 ,
AUDIO_TERM_TYPE_OUT_HEAD_MNT_DISP_AUIDO = 0x0303 ,
AUDIO_TERM_TYPE_OUT_DESKTOP_SPEAKER = 0x0304 ,
AUDIO_TERM_TYPE_OUT_ROOM_SPEAKER = 0x0305 ,
AUDIO_TERM_TYPE_OUT_COMMUNICATION_SPEAKER = 0x0306 ,
AUDIO_TERM_TYPE_OUT_LOW_FRQ_EFFECTS_SPEAKER = 0x0307 ,
} audio_terminal_output_type_t ;
/// Rest is yet to be implemented
/// Additional Audio Device Class Codes - Source: Audio Data Formats
/// A.1 - Audio Class-Format Type Codes UAC2
typedef enum
{
AUDIO_FORMAT_TYPE_UNDEFINED = 0x00 ,
AUDIO_FORMAT_TYPE_I = 0x01 ,
AUDIO_FORMAT_TYPE_II = 0x02 ,
AUDIO_FORMAT_TYPE_III = 0x03 ,
AUDIO_FORMAT_TYPE_IV = 0x04 ,
AUDIO_EXT_FORMAT_TYPE_I = 0x81 ,
AUDIO_EXT_FORMAT_TYPE_II = 0x82 ,
AUDIO_EXT_FORMAT_TYPE_III = 0x83 ,
} audio_format_type_t ;
/// A.2.1 - Audio Class-Audio Data Format Type I UAC2
typedef enum
{
AUDIO_DATA_FORMAT_TYPE_I_PCM = ( uint32_t ) ( 1 < < 0 ) ,
AUDIO_DATA_FORMAT_TYPE_I_PCM8 = ( uint32_t ) ( 1 < < 1 ) ,
AUDIO_DATA_FORMAT_TYPE_I_IEEE_FLOAT = ( uint32_t ) ( 1 < < 2 ) ,
AUDIO_DATA_FORMAT_TYPE_I_ALAW = ( uint32_t ) ( 1 < < 3 ) ,
AUDIO_DATA_FORMAT_TYPE_I_MULAW = ( uint32_t ) ( 1 < < 4 ) ,
AUDIO_DATA_FORMAT_TYPE_I_RAW_DATA = ( uint32_t ) ( 1 < < 31 ) ,
} audio_data_format_type_I_t ;
/// All remaining definitions are taken from the descriptor descriptions in the UAC2 main specification
/// Isochronous End Point Attributes
typedef enum
{
TUSB_ISO_EP_ATT_ASYNCHRONOUS = 0x04 ,
TUSB_ISO_EP_ATT_ADAPTIVE = 0x08 ,
TUSB_ISO_EP_ATT_SYNCHRONOUS = 0x0C ,
TUSB_ISO_EP_ATT_DATA = 0x00 , ///< Data End Point
TUSB_ISO_EP_ATT_FB = 0x20 , ///< Feedback End Point
} tusb_iso_ep_attribute_t ;
/// Audio Class-Control Values UAC2
typedef enum
{
AUDIO_CTRL_NONE = 0x00 , ///< No Host access
AUDIO_CTRL_R = 0x01 , ///< Host read access only
AUDIO_CTRL_RW = 0x03 , ///< Host read write access
} audio_control_t ;
/// Audio Class-Specific AC Interface Descriptor Controls UAC2
typedef enum
{
AUDIO_CS_AS_INTERFACE_CTRL_LATENCY_POS = 0 ,
} audio_cs_ac_interface_control_pos_t ;
/// Audio Class-Specific AS Interface Descriptor Controls UAC2
typedef enum
{
AUDIO_CS_AS_INTERFACE_CTRL_ACTIVE_ALT_SET_POS = 0 ,
AUDIO_CS_AS_INTERFACE_CTRL_VALID_ALT_SET_POS = 2 ,
} audio_cs_as_interface_control_pos_t ;
/// Audio Class-Specific AS Isochronous Data EP Attributes UAC2
typedef enum
{
AUDIO_CS_AS_ISO_DATA_EP_ATT_MAX_PACKETS_ONLY = 0x80 ,
AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK = 0x00 ,
} audio_cs_as_iso_data_ep_attribute_t ;
/// Audio Class-Specific AS Isochronous Data EP Controls UAC2
typedef enum
{
AUDIO_CS_AS_ISO_DATA_EP_CTRL_PITCH_POS = 0 ,
AUDIO_CS_AS_ISO_DATA_EP_CTRL_DATA_OVERRUN_POS = 2 ,
AUDIO_CS_AS_ISO_DATA_EP_CTRL_DATA_UNDERRUN_POS = 4 ,
} audio_cs_as_iso_data_ep_control_pos_t ;
/// Audio Class-Specific AS Isochronous Data EP Lock Delay Units UAC2
typedef enum
{
AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED = 0x00 ,
AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_MILLISEC = 0x01 ,
AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_PCM_SAMPLES = 0x02 ,
} audio_cs_as_iso_data_ep_lock_delay_unit_t ;
/// Audio Class-Clock Source Attributes UAC2
typedef enum
{
AUDIO_CLOCK_SOURCE_ATT_EXT_CLK = 0x00 ,
AUDIO_CLOCK_SOURCE_ATT_INT_FIX_CLK = 0x01 ,
AUDIO_CLOCK_SOURCE_ATT_INT_VAR_CLK = 0x02 ,
AUDIO_CLOCK_SOURCE_ATT_INT_PRO_CLK = 0x03 ,
AUDIO_CLOCK_SOURCE_ATT_CLK_SYC_SOF = 0x04 ,
} audio_clock_source_attribute_t ;
/// Audio Class-Clock Source Controls UAC2
typedef enum
{
AUDIO_CLOCK_SOURCE_CTRL_CLK_FRQ_POS = 0 ,
AUDIO_CLOCK_SOURCE_CTRL_CLK_VAL_POS = 2 ,
} audio_clock_source_control_pos_t ;
/// Audio Class-Clock Selector Controls UAC2
typedef enum
{
AUDIO_CLOCK_SELECTOR_CTRL_POS = 0 ,
} audio_clock_selector_control_pos_t ;
/// Audio Class-Clock Multiplier Controls UAC2
typedef enum
{
AUDIO_CLOCK_MULTIPLIER_CTRL_NUMERATOR_POS = 0 ,
AUDIO_CLOCK_MULTIPLIER_CTRL_DENOMINATOR_POS = 2 ,
} audio_clock_multiplier_control_pos_t ;
/// Audio Class-Input Terminal Controls UAC2
typedef enum
{
AUDIO_IN_TERM_CTRL_CPY_PROT_POS = 0 ,
AUDIO_IN_TERM_CTRL_CONNECTOR_POS = 2 ,
AUDIO_IN_TERM_CTRL_OVERLOAD_POS = 4 ,
AUDIO_IN_TERM_CTRL_CLUSTER_POS = 6 ,
AUDIO_IN_TERM_CTRL_UNDERFLOW_POS = 8 ,
AUDIO_IN_TERM_CTRL_OVERFLOW_POS = 10 ,
} audio_terminal_input_control_pos_t ;
/// Audio Class-Output Terminal Controls UAC2
typedef enum
{
AUDIO_OUT_TERM_CTRL_CPY_PROT_POS = 0 ,
AUDIO_OUT_TERM_CTRL_CONNECTOR_POS = 2 ,
AUDIO_OUT_TERM_CTRL_OVERLOAD_POS = 4 ,
AUDIO_OUT_TERM_CTRL_UNDERFLOW_POS = 6 ,
AUDIO_OUT_TERM_CTRL_OVERFLOW_POS = 8 ,
} audio_terminal_output_control_pos_t ;
/// Audio Class-Feature Unit Controls UAC2
typedef enum
{
AUDIO_FEATURE_UNIT_CTRL_MUTE_POS = 0 ,
AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS = 2 ,
AUDIO_FEATURE_UNIT_CTRL_BASS_POS = 4 ,
AUDIO_FEATURE_UNIT_CTRL_MID_POS = 6 ,
AUDIO_FEATURE_UNIT_CTRL_TREBLE_POS = 8 ,
AUDIO_FEATURE_UNIT_CTRL_GRAPHIC_EQU_POS = 10 ,
AUDIO_FEATURE_UNIT_CTRL_AGC_POS = 12 ,
AUDIO_FEATURE_UNIT_CTRL_DELAY_POS = 14 ,
AUDIO_FEATURE_UNIT_CTRL_BASS_BOOST_POS = 16 ,
AUDIO_FEATURE_UNIT_CTRL_LOUDNESS_POS = 18 ,
AUDIO_FEATURE_UNIT_CTRL_INPUT_GAIN_POS = 20 ,
AUDIO_FEATURE_UNIT_CTRL_INPUT_GAIN_PAD_POS = 22 ,
AUDIO_FEATURE_UNIT_CTRL_PHASE_INV_POS = 24 ,
AUDIO_FEATURE_UNIT_CTRL_UNDERFLOW_POS = 26 ,
AUDIO_FEATURE_UNIT_CTRL_OVERFLOW_POS = 28 ,
} audio_feature_unit_control_pos_t ;
/// Audio Class-Audio Channel Configuration UAC2
typedef enum
{
AUDIO_CHANNEL_CONFIG_NON_PREDEFINED = 0x00000000 ,
AUDIO_CHANNEL_CONFIG_FRONT_LEFT = 0x00000001 ,
AUDIO_CHANNEL_CONFIG_FRONT_RIGHT = 0x00000002 ,
AUDIO_CHANNEL_CONFIG_FRONT_CENTER = 0x00000004 ,
AUDIO_CHANNEL_CONFIG_LOW_FRQ_EFFECTS = 0x00000008 ,
AUDIO_CHANNEL_CONFIG_BACK_LEFT = 0x00000010 ,
AUDIO_CHANNEL_CONFIG_BACK_RIGHT = 0x00000020 ,
AUDIO_CHANNEL_CONFIG_FRONT_LEFT_OF_CENTER = 0x00000040 ,
AUDIO_CHANNEL_CONFIG_FRONT_RIGHT_OF_CENTER = 0x00000080 ,
AUDIO_CHANNEL_CONFIG_BACK_CENTER = 0x00000100 ,
AUDIO_CHANNEL_CONFIG_SIDE_LEFT = 0x00000200 ,
AUDIO_CHANNEL_CONFIG_SIDE_RIGHT = 0x00000400 ,
AUDIO_CHANNEL_CONFIG_TOP_CENTER = 0x00000800 ,
AUDIO_CHANNEL_CONFIG_TOP_FRONT_LEFT = 0x00001000 ,
AUDIO_CHANNEL_CONFIG_TOP_FRONT_CENTER = 0x00002000 ,
AUDIO_CHANNEL_CONFIG_TOP_FRONT_RIGHT = 0x00004000 ,
AUDIO_CHANNEL_CONFIG_TOP_BACK_LEFT = 0x00008000 ,
AUDIO_CHANNEL_CONFIG_TOP_BACK_CENTER = 0x00010000 ,
AUDIO_CHANNEL_CONFIG_TOP_BACK_RIGHT = 0x00020000 ,
AUDIO_CHANNEL_CONFIG_TOP_FRONT_LEFT_OF_CENTER = 0x00040000 ,
AUDIO_CHANNEL_CONFIG_TOP_FRONT_RIGHT_OF_CENTER = 0x00080000 ,
AUDIO_CHANNEL_CONFIG_LEFT_LOW_FRQ_EFFECTS = 0x00100000 ,
AUDIO_CHANNEL_CONFIG_RIGHT_LOW_FRQ_EFFECTS = 0x00200000 ,
AUDIO_CHANNEL_CONFIG_TOP_SIDE_LEFT = 0x00400000 ,
AUDIO_CHANNEL_CONFIG_TOP_SIDE_RIGHT = 0x00800000 ,
AUDIO_CHANNEL_CONFIG_BOTTOM_CENTER = 0x01000000 ,
AUDIO_CHANNEL_CONFIG_BACK_LEFT_OF_CENTER = 0x02000000 ,
AUDIO_CHANNEL_CONFIG_BACK_RIGHT_OF_CENTER = 0x04000000 ,
AUDIO_CHANNEL_CONFIG_RAW_DATA = 0x80000000 ,
} audio_channel_config_t ;
/// AUDIO Channel Cluster Descriptor (4.1)
typedef struct TU_ATTR_PACKED {
uint8_t bNrChannels ; ///< Number of channels currently connected.
audio_channel_config_t bmChannelConfig ; ///< Bitmap according to 'audio_channel_config_t' with a 1 set if channel is connected and 0 else. In case channels are non-predefined ignore them here (see UAC2 specification 4.1 Audio Channel Cluster Descriptor.
uint8_t iChannelNames ; ///< Index of a string descriptor, describing the name of the first inserted channel with a non-predefined spatial location.
} audio_desc_channel_cluster_t ;
/// AUDIO Class-Specific AC Interface Header Descriptor (4.7.2)
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes: 9.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_HEADER.
uint16_t bcdADC ; ///< Audio Device Class Specification Release Number in Binary-Coded Decimal. Value: U16_TO_U8S_LE(0x0200).
uint8_t bCategory ; ///< Constant, indicating the primary use of this audio function, as intended by the manufacturer. See: audio_function_t.
uint16_t wTotalLength ; ///< Total number of bytes returned for the class-specific AudioControl interface descriptor. Includes the combined length of this descriptor header and all Clock Source, Unit and Terminal descriptors.
uint8_t bmControls ; ///< See: audio_cs_ac_interface_control_pos_t.
} audio_desc_cs_ac_interface_t ;
/// AUDIO Clock Source Descriptor (4.7.2.1)
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes: 8.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_CLOCK_SOURCE.
uint8_t bClockID ; ///< Constant uniquely identifying the Clock Source Entity within the audio function. This value is used in all requests to address this Entity.
uint8_t bmAttributes ; ///< See: audio_clock_source_attribute_t.
uint8_t bmControls ; ///< See: audio_clock_source_control_pos_t.
uint8_t bAssocTerminal ; ///< Terminal ID of the Terminal that is associated with this Clock Source.
uint8_t iClockSource ; ///< Index of a string descriptor, describing the Clock Source Entity.
} audio_desc_clock_source_t ;
/// AUDIO Clock Selector Descriptor (4.7.2.2) for ONE pin
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor, in bytes: 7+p.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_CLOCK_SELECTOR.
uint8_t bClockID ; ///< Constant uniquely identifying the Clock Selector Entity within the audio function. This value is used in all requests to address this Entity.
uint8_t bNrInPins ; ///< Number of Input Pins of this Unit: p = 1 thus bNrInPins = 1.
uint8_t baCSourceID ; ///< ID of the Clock Entity to which the first Clock Input Pin of this Clock Selector Entity is connected..
uint8_t bmControls ; ///< See: audio_clock_selector_control_pos_t.
uint8_t iClockSource ; ///< Index of a string descriptor, describing the Clock Selector Entity.
} audio_desc_clock_selector_t ;
/// AUDIO Clock Selector Descriptor (4.7.2.2) for multiple pins
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# define audio_desc_clock_selector_n_t(source_num) \
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struct TU_ATTR_PACKED { \
uint8_t bLength ; \
uint8_t bDescriptorType ; \
uint8_t bDescriptorSubType ; \
uint8_t bClockID ; \
uint8_t bNrInPins ; \
struct TU_ATTR_PACKED { \
uint8_t baSourceID ; \
} sourceID [ source_num ] ; \
uint8_t bmControls ; \
uint8_t iClockSource ; \
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}
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/// AUDIO Clock Multiplier Descriptor (4.7.2.3)
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor, in bytes: 7.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_CLOCK_MULTIPLIER.
uint8_t bClockID ; ///< Constant uniquely identifying the Clock Multiplier Entity within the audio function. This value is used in all requests to address this Entity.
uint8_t bCSourceID ; ///< ID of the Clock Entity to which the last Clock Input Pin of this Clock Selector Entity is connected.
uint8_t bmControls ; ///< See: audio_clock_multiplier_control_pos_t.
uint8_t iClockSource ; ///< Index of a string descriptor, describing the Clock Multiplier Entity.
} audio_desc_clock_multiplier_t ;
/// AUDIO Input Terminal Descriptor(4.7.2.4)
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor, in bytes: 17.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_INPUT_TERMINAL.
uint16_t wTerminalType ; ///< Constant characterizing the type of Terminal. See: audio_terminal_type_t for USB streaming and audio_terminal_input_type_t for other input types.
uint8_t bAssocTerminal ; ///< ID of the Output Terminal to which this Input Terminal is associated.
uint8_t bCSourceID ; ///< ID of the Clock Entity to which this Input Terminal is connected.
uint8_t bNrChannels ; ///< Number of logical output channels in the Terminal’
uint32_t bmChannelConfig ; ///< Describes the spatial location of the logical channels. See:audio_channel_config_t.
uint16_t bmControls ; ///< See: audio_terminal_input_control_pos_t.
uint8_t iTerminal ; ///< Index of a string descriptor, describing the Input Terminal.
} audio_desc_input_terminal_t ;
/// AUDIO Output Terminal Descriptor(4.7.2.5)
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor, in bytes: 12.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_OUTPUT_TERMINAL.
uint8_t bTerminalID ; ///< Constant uniquely identifying the Terminal within the audio function. This value is used in all requests to address this Terminal.
uint16_t wTerminalType ; ///< Constant characterizing the type of Terminal. See: audio_terminal_type_t for USB streaming and audio_terminal_output_type_t for other output types.
uint8_t bAssocTerminal ; ///< Constant, identifying the Input Terminal to which this Output Terminal is associated.
uint8_t bSourceID ; ///< ID of the Unit or Terminal to which this Terminal is connected.
uint8_t bCSourceID ; ///< ID of the Clock Entity to which this Output Terminal is connected.
uint16_t bmControls ; ///< See: audio_terminal_output_type_t.
uint8_t iTerminal ; ///< Index of a string descriptor, describing the Output Terminal.
} audio_desc_output_terminal_t ;
/// AUDIO Feature Unit Descriptor(4.7.2.8) for ONE channel
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor, in bytes: 14.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AC_INTERFACE_FEATURE_UNIT.
uint8_t bUnitID ; ///< Constant uniquely identifying the Unit within the audio function. This value is used in all requests to address this Unit.
uint8_t bSourceID ; ///< ID of the Unit or Terminal to which this Feature Unit is connected.
struct TU_ATTR_PACKED {
uint32_t bmaControls ; ///< See: audio_feature_unit_control_pos_t. Controls0 is master channel 0 (always present) and Controls1 is logical channel 1.
} controls [ 2 ] ;
uint8_t iTerminal ; ///< Index of a string descriptor, describing this Feature Unit.
} audio_desc_feature_unit_t ;
/// AUDIO Feature Unit Descriptor(4.7.2.8) for multiple channels
# define audio_desc_feature_unit_n_t(ch_num)\
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struct TU_ATTR_PACKED { \
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uint8_t bLength ; /* 6+(ch_num+1)*4 */ \
uint8_t bDescriptorType ; \
uint8_t bDescriptorSubType ; \
uint8_t bUnitID ; \
uint8_t bSourceID ; \
struct TU_ATTR_PACKED { \
uint32_t bmaControls ; \
} controls [ ch_num + 1 ] ; \
uint8_t iTerminal ; \
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}
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/// AUDIO Class-Specific AS Interface Descriptor(4.9.2)
typedef struct TU_ATTR_PACKED
{
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uint8_t bLength ; ///< Size of this descriptor, in bytes: 16.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AS_INTERFACE_AS_GENERAL.
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uint8_t bTerminalLink ; ///< The Terminal ID of the Terminal to which this interface is connected.
uint8_t bmControls ; ///< See: audio_cs_as_interface_control_pos_t.
uint8_t bFormatType ; ///< Constant identifying the Format Type the AudioStreaming interface is using. See: audio_format_type_t.
uint32_t bmFormats ; ///< The Audio Data Format(s) that can be used to communicate with this interface.See: audio_data_format_type_I_t.
uint8_t bNrChannels ; ///< Number of physical channels in the AS Interface audio channel cluster.
uint32_t bmChannelConfig ; ///< Describes the spatial location of the physical channels. See: audio_channel_config_t.
uint8_t iChannelNames ; ///< Index of a string descriptor, describing the name of the first physical channel.
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} audio_desc_cs_as_interface_t ;
/// AUDIO Type I Format Type Descriptor(2.3.1.6 - Audio Formats)
typedef struct TU_ATTR_PACKED
{
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uint8_t bLength ; ///< Size of this descriptor, in bytes: 6.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_INTERFACE.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_AS_INTERFACE_FORMAT_TYPE.
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uint8_t bFormatType ; ///< Constant identifying the Format Type the AudioStreaming interface is using. Value: AUDIO_FORMAT_TYPE_I.
uint8_t bSubslotSize ; ///< The number of bytes occupied by one audio subslot. Can be 1, 2, 3 or 4.
uint8_t bBitResolution ; ///< The number of effectively used bits from the available bits in an audio subslot.
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} audio_desc_type_I_format_t ;
/// AUDIO Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2)
typedef struct TU_ATTR_PACKED
{
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uint8_t bLength ; ///< Size of this descriptor, in bytes: 8.
uint8_t bDescriptorType ; ///< Descriptor Type. Value: TUSB_DESC_CS_ENDPOINT.
uint8_t bDescriptorSubType ; ///< Descriptor SubType. Value: AUDIO_CS_EP_SUBTYPE_GENERAL.
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uint8_t bmAttributes ; ///< See: audio_cs_as_iso_data_ep_attribute_t.
uint8_t bmControls ; ///< See: audio_cs_as_iso_data_ep_control_pos_t.
uint8_t bLockDelayUnits ; ///< Indicates the units used for the wLockDelay field. See: audio_cs_as_iso_data_ep_lock_delay_unit_t.
uint16_t wLockDelay ; ///< Indicates the time it takes this endpoint to reliably lock its internal clock recovery circuitry. Units used depend on the value of the bLockDelayUnits field.
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} audio_desc_cs_as_iso_data_ep_t ;
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//// 5.2.3 Control Request Parameter Block Layout
// 5.2.3.1 1-byte Control CUR Parameter Block
typedef struct TU_ATTR_PACKED
{
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int8_t bCur ; ///< The setting for the CUR attribute of the addressed Control
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} audio_control_cur_1_t ;
// 5.2.3.2 2-byte Control CUR Parameter Block
typedef struct TU_ATTR_PACKED
{
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int16_t bCur ; ///< The setting for the CUR attribute of the addressed Control
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} audio_control_cur_2_t ;
// 5.2.3.3 4-byte Control CUR Parameter Block
typedef struct TU_ATTR_PACKED
{
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int32_t bCur ; ///< The setting for the CUR attribute of the addressed Control
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} audio_control_cur_4_t ;
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// Use the following ONLY for RECEIVED data - compiler does not know how many subranges are defined! Use the one below for predefined lengths - or if you know what you are doing do what you like
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// 5.2.3.1 1-byte Control RANGE Parameter Block
typedef struct TU_ATTR_PACKED {
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uint16_t wNumSubRanges ;
struct TU_ATTR_PACKED {
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int8_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/
int8_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/
uint8_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/
} subrange [ ] ;
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} audio_control_range_1_t ;
// 5.2.3.2 2-byte Control RANGE Parameter Block
typedef struct TU_ATTR_PACKED {
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uint16_t wNumSubRanges ;
struct TU_ATTR_PACKED {
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int16_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/
int16_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/
uint16_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/
} subrange [ ] ;
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} audio_control_range_2_t ;
// 5.2.3.3 4-byte Control RANGE Parameter Block
typedef struct TU_ATTR_PACKED {
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uint16_t wNumSubRanges ;
struct TU_ATTR_PACKED {
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int32_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/
int32_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/
uint32_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/
} subrange [ ] ;
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} audio_control_range_4_t ;
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// 5.2.3.1 1-byte Control RANGE Parameter Block
# define audio_control_range_1_n_t(numSubRanges) \
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struct TU_ATTR_PACKED { \
uint16_t wNumSubRanges ; \
struct TU_ATTR_PACKED { \
int8_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/ \
int8_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/ \
uint8_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/ \
} subrange [ numSubRanges ] ; \
}
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/// 5.2.3.2 2-byte Control RANGE Parameter Block
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# define audio_control_range_2_n_t(numSubRanges) \
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struct TU_ATTR_PACKED { \
uint16_t wNumSubRanges ; \
struct TU_ATTR_PACKED { \
int16_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/ \
int16_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/ \
uint16_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/ \
} subrange [ numSubRanges ] ; \
}
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// 5.2.3.3 4-byte Control RANGE Parameter Block
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# define audio_control_range_4_n_t(numSubRanges) \
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struct TU_ATTR_PACKED { \
uint16_t wNumSubRanges ; \
struct TU_ATTR_PACKED { \
int32_t bMin ; /*The setting for the MIN attribute of the nth subrange of the addressed Control*/ \
int32_t bMax ; /*The setting for the MAX attribute of the nth subrange of the addressed Control*/ \
uint32_t bRes ; /*The setting for the RES attribute of the nth subrange of the addressed Control*/ \
} subrange [ numSubRanges ] ; \
}
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/** @} */
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# ifdef __cplusplus
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}
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# endif
# endif
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/** @} */
