/* * Copyright (c) 2010 Daniel Mack * * This software is distributed under the terms of the GNU General Public * License ("GPL") version 2, as published by the Free Software Foundation. * * This file holds USB constants and structures defined * by the USB Device Class Definition for Audio Devices in version 2.0. * Comments below reference relevant sections of the documents contained * in http://www.usb.org/developers/devclass_docs/Audio2.0_final.zip */ #ifndef __LINUX_USB_AUDIO_V2_H #define __LINUX_USB_AUDIO_V2_H #include static inline bool uac2_control_is_readable(u32 bmControls, u8 control) { return (bmControls >> (control * 2)) & 0x1; } static inline bool uac2_control_is_writeable(u32 bmControls, u8 control) { return (bmControls >> (control * 2)) & 0x2; } struct uac2_ac_header_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __le16 bcdADC; __u8 bCategory; __le16 wTotalLength; __u8 bmControls; } __packed; struct uac2_format_type_i_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bFormatType; __u8 bSubslotSize; __u8 bBitResolution; } __packed; struct uac_clock_source_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bClockID; __u8 bmAttributes; __u8 bmControls; __u8 bAssocTerminal; __u8 iClockSource; } __attribute__((packed)); #define UAC_CLOCK_SOURCE_TYPE_EXT 0x0 #define UAC_CLOCK_SOURCE_TYPE_INT_FIXED 0x1 #define UAC_CLOCK_SOURCE_TYPE_INT_VAR 0x2 #define UAC_CLOCK_SOURCE_TYPE_INT_PROG 0x3 #define UAC_CLOCK_SOURCE_SYNCED_TO_SOF (1 << 2) struct uac_clock_selector_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bClockID; __u8 bNrInPins; __u8 baCSourceID[]; } __attribute__((packed)); struct uac_clock_multiplier_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bClockID; __u8 bCSourceID; __u8 bmControls; __u8 iClockMultiplier; } __attribute__((packed)); struct uac2_input_terminal_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bTerminalID; __u16 wTerminalType; __u8 bAssocTerminal; __u8 bCSourceID; __u8 bNrChannels; __u32 bmChannelConfig; __u8 iChannelNames; __u16 bmControls; __u8 iTerminal; } __attribute__((packed)); struct uac2_output_terminal_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bTerminalID; __u16 wTerminalType; __u8 bAssocTerminal; __u8 bSourceID; __u8 bCSourceID; __u16 bmControls; __u8 iTerminal; } __attribute__((packed)); struct uac2_feature_unit_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUnitID; __u8 bSourceID; __u8 bmaControls[0]; } __attribute__((packed)); struct uac2_as_header_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bTerminalLink; __u8 bmControls; __u8 bFormatType; __u32 bmFormats; __u8 bNrChannels; __u32 bmChannelConfig; __u8 iChannelNames; } __attribute__((packed)); struct uac2_iso_endpoint_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bmAttributes; __u8 bmControls; __u8 bLockDelayUnits; __le16 wLockDelay; } __attribute__((packed)); #define UAC2_CONTROL_PITCH (3 << 0) #define UAC2_CONTROL_DATA_OVERRUN (3 << 2) #define UAC2_CONTROL_DATA_UNDERRUN (3 << 4) #define UAC2_INTERRUPT_DATA_MSG_VENDOR (1 << 0) #define UAC2_INTERRUPT_DATA_MSG_EP (1 << 1) struct uac2_interrupt_data_msg { __u8 bInfo; __u8 bAttribute; __le16 wValue; __le16 wIndex; } __attribute__((packed)); #define UAC2_FUNCTION_SUBCLASS_UNDEFINED 0x00 #define UAC2_FUNCTION_DESKTOP_SPEAKER 0x01 #define UAC2_FUNCTION_HOME_THEATER 0x02 #define UAC2_FUNCTION_MICROPHONE 0x03 #define UAC2_FUNCTION_HEADSET 0x04 #define UAC2_FUNCTION_TELEPHONE 0x05 #define UAC2_FUNCTION_CONVERTER 0x06 #define UAC2_FUNCTION_SOUND_RECORDER 0x07 #define UAC2_FUNCTION_IO_BOX 0x08 #define UAC2_FUNCTION_MUSICAL_INSTRUMENT 0x09 #define UAC2_FUNCTION_PRO_AUDIO 0x0a #define UAC2_FUNCTION_AUDIO_VIDEO 0x0b #define UAC2_FUNCTION_CONTROL_PANEL 0x0c #define UAC2_FUNCTION_OTHER 0xff #define UAC2_EFFECT_UNIT 0x07 #define UAC2_PROCESSING_UNIT_V2 0x08 #define UAC2_EXTENSION_UNIT_V2 0x09 #define UAC2_CLOCK_SOURCE 0x0a #define UAC2_CLOCK_SELECTOR 0x0b #define UAC2_CLOCK_MULTIPLIER 0x0c #define UAC2_SAMPLE_RATE_CONVERTER 0x0d #define UAC2_ENCODER 0x03 #define UAC2_DECODER 0x04 #define UAC2_EFFECT_UNDEFINED 0x00 #define UAC2_EFFECT_PARAM_EQ 0x01 #define UAC2_EFFECT_REVERB 0x02 #define UAC2_EFFECT_MOD_DELAY 0x03 #define UAC2_EFFECT_DYN_RANGE_COMP 0x04 #define UAC2_PROCESS_UNDEFINED 0x00 #define UAC2_PROCESS_UP_DOWNMIX 0x01 #define UAC2_PROCESS_DOLBY_PROLOCIC 0x02 #define UAC2_PROCESS_STEREO_EXTENDER 0x03 #define UAC2_CS_CUR 0x01 #define UAC2_CS_RANGE 0x02 #define UAC2_CS_MEM 0x03 #define UAC2_ENCODER_UNDEFINED 0x00 #define UAC2_ENCODER_OTHER 0x01 #define UAC2_ENCODER_MPEG 0x02 #define UAC2_ENCODER_AC3 0x03 #define UAC2_ENCODER_WMA 0x04 #define UAC2_ENCODER_DTS 0x05 #define UAC2_DECODER_UNDEFINED 0x00 #define UAC2_DECODER_OTHER 0x01 #define UAC2_DECODER_MPEG 0x02 #define UAC2_DECODER_AC3 0x03 #define UAC2_DECODER_WMA 0x04 #define UAC2_DECODER_DTS 0x05 #define UAC2_CS_UNDEFINED 0x00 #define UAC2_CS_CONTROL_SAM_FREQ 0x01 #define UAC2_CS_CONTROL_CLOCK_VALID 0x02 #define UAC2_CX_UNDEFINED 0x00 #define UAC2_CX_CLOCK_SELECTOR 0x01 #define UAC2_CM_UNDEFINED 0x00 #define UAC2_CM_NUMERATOR 0x01 #define UAC2_CM_DENOMINTATOR 0x02 #define UAC2_TE_UNDEFINED 0x00 #define UAC2_TE_COPY_PROTECT 0x01 #define UAC2_TE_CONNECTOR 0x02 #define UAC2_TE_OVERLOAD 0x03 #define UAC2_TE_CLUSTER 0x04 #define UAC2_TE_UNDERFLOW 0x05 #define UAC2_TE_OVERFLOW 0x06 #define UAC2_TE_LATENCY 0x07 #define UAC2_MU_UNDEFINED 0x00 #define UAC2_MU_MIXER 0x01 #define UAC2_MU_CLUSTER 0x02 #define UAC2_MU_UNDERFLOW 0x03 #define UAC2_MU_OVERFLOW 0x04 #define UAC2_MU_LATENCY 0x05 #define UAC2_SU_UNDEFINED 0x00 #define UAC2_SU_SELECTOR 0x01 #define UAC2_SU_LATENCY 0x02 #define UAC2_FU_INPUT_GAIN 0x0b #define UAC2_FU_INPUT_GAIN_PAD 0x0c #define UAC2_FU_PHASE_INVERTER 0x0d #define UAC2_FU_UNDERFLOW 0x0e #define UAC2_FU_OVERFLOW 0x0f #define UAC2_FU_LATENCY 0x10 #define UAC2_PE_UNDEFINED 0x00 #define UAC2_PE_ENABLE 0x01 #define UAC2_PE_CENTERFREQ 0x02 #define UAC2_PE_QFACTOR 0x03 #define UAC2_PE_GAIN 0x04 #define UAC2_PE_UNDERFLOW 0x05 #define UAC2_PE_OVERFLOW 0x06 #define UAC2_PE_LATENCY 0x07 #define UAC2_RV_UNDEFINED 0x00 #define UAC2_RV_ENABLE 0x01 #define UAC2_RV_TYPE 0x02 #define UAC2_RV_LEVEL 0x03 #define UAC2_RV_TIME 0x04 #define UAC2_RV_FEEDBACK 0x05 #define UAC2_RV_PREDELAY 0x06 #define UAC2_RV_DENSITY 0x07 #define UAC2_RV_HIFREQ_ROLLOFF 0x08 #define UAC2_RV_UNDERFLOW 0x09 #define UAC2_RV_OVERFLOW 0x0a #define UAC2_RV_LATENCY 0x0b #define UAC2_MD_UNDEFINED 0x00 #define UAC2_MD_ENABLE 0x01 #define UAC2_MD_BALANCE 0x02 #define UAC2_MD_RATE 0x03 #define UAC2_MD_DEPTH 0x04 #define UAC2_MD_TIME 0x05 #define UAC2_MD_FEEDBACK 0x06 #define UAC2_MD_UNDERFLOW 0x07 #define UAC2_MD_OVERFLOW 0x08 #define UAC2_MD_LATENCY 0x09 #define UAC2_DR_UNDEFINED 0x00 #define UAC2_DR_ENABLE 0x01 #define UAC2_DR_COMPRESSION_RATE 0x02 #define UAC2_DR_MAXAMPL 0x03 #define UAC2_DR_THRESHOLD 0x04 #define UAC2_DR_ATTACK_TIME 0x05 #define UAC2_DR_RELEASE_TIME 0x06 #define UAC2_DR_UNDEFLOW 0x07 #define UAC2_DR_OVERFLOW 0x08 #define UAC2_DR_LATENCY 0x09 #define UAC2_UD_UNDEFINED 0x00 #define UAC2_UD_ENABLE 0x01 #define UAC2_UD_MODE_SELECT 0x02 #define UAC2_UD_CLUSTER 0x03 #define UAC2_UD_UNDERFLOW 0x04 #define UAC2_UD_OVERFLOW 0x05 #define UAC2_UD_LATENCY 0x06 #define UAC2_DP_UNDEFINED 0x00 #define UAC2_DP_ENABLE 0x01 #define UAC2_DP_MODE_SELECT 0x02 #define UAC2_DP_CLUSTER 0x03 #define UAC2_DP_UNDERFFLOW 0x04 #define UAC2_DP_OVERFLOW 0x05 #define UAC2_DP_LATENCY 0x06 #define UAC2_ST_EXT_UNDEFINED 0x00 #define UAC2_ST_EXT_ENABLE 0x01 #define UAC2_ST_EXT_WIDTH 0x02 #define UAC2_ST_EXT_UNDEFLOW 0x03 #define UAC2_ST_EXT_OVERFLOW 0x04 #define UAC2_ST_EXT_LATENCY 0x05 #define UAC2_XU_UNDEFINED 0x00 #define UAC2_XU_ENABLE 0x01 #define UAC2_XU_CLUSTER 0x02 #define UAC2_XU_UNDERFLOW 0x03 #define UAC2_XU_OVERFLOW 0x04 #define UAC2_XU_LATENCY 0x05 #define UAC2_AS_UNDEFINED 0x00 #define UAC2_AS_ACT_ALT_SETTING 0x01 #define UAC2_AS_VAL_ALT_SETTINGS 0x02 #define UAC2_AS_AUDIO_DATA_FORMAT 0x03 #define UAC2_EN_UNDEFINED 0x00 #define UAC2_EN_BIT_RATE 0x01 #define UAC2_EN_QUALITY 0x02 #define UAC2_EN_VBR 0x03 #define UAC2_EN_TYPE 0x04 #define UAC2_EN_UNDERFLOW 0x05 #define UAC2_EN_OVERFLOW 0x06 #define UAC2_EN_ENCODER_ERROR 0x07 #define UAC2_EN_PARAM1 0x08 #define UAC2_EN_PARAM2 0x09 #define UAC2_EN_PARAM3 0x0a #define UAC2_EN_PARAM4 0x0b #define UAC2_EN_PARAM5 0x0c #define UAC2_EN_PARAM6 0x0d #define UAC2_EN_PARAM7 0x0e #define UAC2_EN_PARAM8 0x0f #define UAC2_MPEG_UNDEFINED 0x00 #define UAC2_MPEG_DUAL_CHANNEL 0x01 #define UAC2_MPEG_SECOND_STEREO 0x02 #define UAC2_MPEG_MULTILINGUAL 0x03 #define UAC2_MPEG_DYN_RANGE 0x04 #define UAC2_MPEG_SCALING 0x05 #define UAC2_MPEG_HILO_SCALING 0x06 #define UAC2_MPEG_UNDERFLOW 0x07 #define UAC2_MPEG_OVERFLOW 0x08 #define UAC2_MPEG_DECODER_ERROR 0x09 #define UAC2_AC3_UNDEFINED 0x00 #define UAC2_AC3_MODE 0x01 #define UAC2_AC3_DYN_RANGE 0x02 #define UAC2_AC3_SCALING 0x03 #define UAC2_AC3_HILO_SCALING 0x04 #define UAC2_AC3_UNDERFLOW 0x05 #define UAC2_AC3_OVERFLOW 0x06 #define UAC2_AC3_DECODER_ERROR 0x07 #define UAC2_WMA_UNDEFINED 0x00 #define UAC2_WMA_UNDERFLOW 0x01 #define UAC2_WMA_OVERFLOW 0x02 #define UAC2_WMA_DECODER_ERROR 0x03 #define UAC2_DTS_UNDEFINED 0x00 #define UAC2_DTS_UNDERFLOW 0x01 #define UAC2_DTS_OVERFLOW 0x02 #define UAC2_DTS_DECODER_ERROR 0x03 #define UAC2_EP_CS_UNDEFINED 0x00 #define UAC2_EP_CS_PITCH 0x01 #define UAC2_EP_CS_DATA_OVERRUN 0x02 #define UAC2_EP_CS_DATA_UNDERRUN 0x03 #endif