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Refactor descriptor, add alt settings support.

This commit is contained in:
MasterPhi 2021-07-01 00:26:24 +02:00
parent 325742acb4
commit a1639b0279
3 changed files with 68 additions and 25 deletions
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42
examples/device/uac2_headset/src/tusb_config.h
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@ -94,28 +94,42 @@ extern "C" {
// AUDIO CLASS DRIVER CONFIGURATION
//--------------------------------------------------------------------
//#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN 220 // This equals TUD_AUDIO_HEADSET_STEREO_DESC_LEN, however, including it from usb_descriptors.h is not possible due to some strange include hassle
#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN TUD_AUDIO_HEADSET_STEREO_DESC_LEN
#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN TUD_AUDIO_HEADSET_STEREO_DESC_LEN
// Audio format type I specifications
#define CFG_TUD_AUDIO_FUNC_1_N_MAX_SAMPLE_RATE 96000
#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX 1
#define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX 2
#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX 2
#define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX 2
#define CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP 0
#define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE 96000 // 24bit/96kHz is the best quality for full-speed, high-speed is needed beyond this
#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX 1
#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX 2
// 16bit in 16bit slots
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX 2
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_TX 16
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX 2
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX 16
// 24bit in 32bit slots
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX 4
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX 24
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX 4
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX 24
// EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
#define CFG_TUD_AUDIO_ENABLE_EP_IN 1
#define CFG_TUD_AUDIO_EP_SZ_IN TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_N_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX) // 48 Samples (48 kHz) x 2 Bytes/Sample x n Channels
#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ CFG_TUD_AUDIO_EP_SZ_IN
#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX CFG_TUD_AUDIO_EP_SZ_IN // Maximum EP IN size for all AS alternate settings used
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN)
#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN) // Maximum EP IN size for all AS alternate settings used
// EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
#define CFG_TUD_AUDIO_ENABLE_EP_OUT 1
#define CFG_TUD_AUDIO_EP_SZ_OUT TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_N_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX) // N Samples (N kHz) x 2 Bytes/Sample x n Channels
#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ CFG_TUD_AUDIO_EP_SZ_OUT*3
#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX CFG_TUD_AUDIO_EP_SZ_OUT // Maximum EP IN size for all AS alternate settings used
#define CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
#define CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT)*3
#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
// Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
#define CFG_TUD_AUDIO_FUNC_1_N_AS_INT 2

2
examples/device/uac2_headset/src/usb_descriptors.c
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@ -93,7 +93,7 @@ uint8_t const desc_configuration[] =
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
// Interface number, string index, EP Out & EP In address, EP size
TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(2, 2, 16, EPNUM_AUDIO, CFG_TUD_AUDIO_EP_SZ_OUT, EPNUM_AUDIO | 0x80, CFG_TUD_AUDIO_EP_SZ_IN)
TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(2, EPNUM_AUDIO, EPNUM_AUDIO | 0x80)
};
// Invoked when received GET CONFIGURATION DESCRIPTOR

49
examples/device/uac2_headset/src/usb_descriptors.h
View File

@ -62,14 +62,23 @@ enum
+ TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_STD_AS_INT_LEN\
+ TUD_AUDIO_DESC_CS_AS_INT_LEN\
+ TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+ TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_STD_AS_INT_LEN\
+ TUD_AUDIO_DESC_STD_AS_INT_LEN\
+ TUD_AUDIO_DESC_CS_AS_INT_LEN\
+ TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+ TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_STD_AS_INT_LEN\
+ TUD_AUDIO_DESC_CS_AS_INT_LEN\
+ TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+ TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+ TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN)
#define TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(_stridx, _nBytesPerSample, _nBitsUsedPerSample, _epout, _epoutsize, _epin, _epinsize) \
#define TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(_stridx, _epout, _epin) \
/* Standard Interface Association Descriptor (IAD) */\
TUD_AUDIO_DESC_IAD(/*_firstitfs*/ ITF_NUM_AUDIO_CONTROL, /*_nitfs*/ ITF_NUM_TOTAL, /*_stridx*/ 0x00),\
/* Standard AC Interface Descriptor(4.7.1) */\
@ -83,7 +92,7 @@ enum
/* Feature Unit Descriptor(4.7.2.8) */\
TUD_AUDIO_DESC_FEATURE_UNIT_TWO_CHANNEL(/*_unitid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_srcid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrlch0master*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_ctrlch1*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_ctrlch2*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_stridx*/ 0x00),\
/* Output Terminal Descriptor(4.7.2.5) */\
TUD_AUDIO_DESC_OUTPUT_TERM(/*_termid*/ UAC2_ENTITY_SPK_OUTPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_OUT_GENERIC_SPEAKER, /*_assocTerm*/ 0x00, /*_srcid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_ctrl*/ 0x0000, /*_stridx*/ 0x00),\
TUD_AUDIO_DESC_OUTPUT_TERM(/*_termid*/ UAC2_ENTITY_SPK_OUTPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_OUT_HEADPHONES, /*_assocTerm*/ 0x00, /*_srcid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_ctrl*/ 0x0000, /*_stridx*/ 0x00),\
/* Input Terminal Descriptor(4.7.2.4) */\
TUD_AUDIO_DESC_INPUT_TERM(/*_termid*/ UAC2_ENTITY_MIC_INPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_IN_GENERIC_MIC, /*_assocTerm*/ 0x00, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_nchannelslogical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_idxchannelnames*/ 0x00, /*_ctrl*/ 0 * (AUDIO_CTRL_R << AUDIO_IN_TERM_CTRL_CONNECTOR_POS), /*_stridx*/ 0x00),\
/* Output Terminal Descriptor(4.7.2.5) */\
@ -95,11 +104,21 @@ enum
/* Interface 1, Alternate 1 - alternate interface for data streaming */\
TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_SPK), /*_altset*/ 0x01, /*_nEPs*/ 0x01, /*_stridx*/ 0x05),\
/* Class-Specific AS Interface Descriptor(4.9.2) */\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x02, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
/* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
TUD_AUDIO_DESC_TYPE_I_FORMAT(_nBytesPerSample, _nBitsUsedPerSample),\
TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX),\
/* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ _epoutsize, /*_interval*/ 0x01),\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX), /*_interval*/ 0x01),\
/* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_MILLISEC, /*_lockdelay*/ 0x0001),\
/* Interface 1, Alternate 2 - alternate interface for data streaming */\
TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_SPK), /*_altset*/ 0x02, /*_nEPs*/ 0x01, /*_stridx*/ 0x05),\
/* Class-Specific AS Interface Descriptor(4.9.2) */\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
/* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX),\
/* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX), /*_interval*/ 0x01),\
/* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_MILLISEC, /*_lockdelay*/ 0x0001),\
/* Standard AS Interface Descriptor(4.9.1) */\
@ -109,12 +128,22 @@ enum
/* Interface 2, Alternate 1 - alternate interface for data streaming */\
TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_MIC), /*_altset*/ 0x01, /*_nEPs*/ 0x01, /*_stridx*/ 0x04),\
/* Class-Specific AS Interface Descriptor(4.9.2) */\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
/* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
TUD_AUDIO_DESC_TYPE_I_FORMAT(_nBytesPerSample, _nBitsUsedPerSample),\
TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_TX),\
/* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ _epinsize, /*_interval*/ 0x01),\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX), /*_interval*/ 0x01),\
/* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000)\
TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000),\
/* Interface 2, Alternate 2 - alternate interface for data streaming */\
TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_MIC), /*_altset*/ 0x02, /*_nEPs*/ 0x01, /*_stridx*/ 0x04),\
/* Class-Specific AS Interface Descriptor(4.9.2) */\
TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
/* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX),\
/* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX), /*_interval*/ 0x01),\
/* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000)
#endif