v4.19.13 snapshot.
diff --git a/include/linux/usb/audio-v3.h b/include/linux/usb/audio-v3.h
new file mode 100644
index 0000000..6b70843
--- /dev/null
+++ b/include/linux/usb/audio-v3.h
@@ -0,0 +1,454 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Ruslan Bilovol <ruslan.bilovol@gmail.com>
+ *
+ * This file holds USB constants and structures defined
+ * by the USB DEVICE CLASS DEFINITION FOR AUDIO DEVICES Release 3.0.
+ */
+
+#ifndef __LINUX_USB_AUDIO_V3_H
+#define __LINUX_USB_AUDIO_V3_H
+
+#include <linux/types.h>
+
+/*
+ * v1.0, v2.0 and v3.0 of this standard have many things in common. For the rest
+ * of the definitions, please refer to audio.h and audio-v2.h
+ */
+
+/* All High Capability descriptors have these 2 fields at the beginning */
+struct uac3_hc_descriptor_header {
+ __le16 wLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __le16 wDescriptorID;
+} __attribute__ ((packed));
+
+/* 4.3.1 CLUSTER DESCRIPTOR HEADER */
+struct uac3_cluster_header_descriptor {
+ __le16 wLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __le16 wDescriptorID;
+ __u8 bNrChannels;
+} __attribute__ ((packed));
+
+/* 4.3.2.1 SEGMENTS */
+struct uac3_cluster_segment_descriptor {
+ __le16 wLength;
+ __u8 bSegmentType;
+ /* __u8[0]; segment-specific data */
+} __attribute__ ((packed));
+
+/* 4.3.2.1.1 END SEGMENT */
+struct uac3_cluster_end_segment_descriptor {
+ __le16 wLength;
+ __u8 bSegmentType; /* Constant END_SEGMENT */
+} __attribute__ ((packed));
+
+/* 4.3.2.1.3.1 INFORMATION SEGMENT */
+struct uac3_cluster_information_segment_descriptor {
+ __le16 wLength;
+ __u8 bSegmentType;
+ __u8 bChPurpose;
+ __u8 bChRelationship;
+ __u8 bChGroupID;
+} __attribute__ ((packed));
+
+/* 4.5.2 CLASS-SPECIFIC AC INTERFACE DESCRIPTOR */
+struct uac3_ac_header_descriptor {
+ __u8 bLength; /* 10 */
+ __u8 bDescriptorType; /* CS_INTERFACE descriptor type */
+ __u8 bDescriptorSubtype; /* HEADER descriptor subtype */
+ __u8 bCategory;
+
+ /* includes Clock Source, Unit, Terminal, and Power Domain desc. */
+ __le16 wTotalLength;
+
+ __le32 bmControls;
+} __attribute__ ((packed));
+
+/* 4.5.2.1 INPUT TERMINAL DESCRIPTOR */
+struct uac3_input_terminal_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bTerminalID;
+ __le16 wTerminalType;
+ __u8 bAssocTerminal;
+ __u8 bCSourceID;
+ __le32 bmControls;
+ __le16 wClusterDescrID;
+ __le16 wExTerminalDescrID;
+ __le16 wConnectorsDescrID;
+ __le16 wTerminalDescrStr;
+} __attribute__((packed));
+
+/* 4.5.2.2 OUTPUT TERMINAL DESCRIPTOR */
+struct uac3_output_terminal_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bTerminalID;
+ __le16 wTerminalType;
+ __u8 bAssocTerminal;
+ __u8 bSourceID;
+ __u8 bCSourceID;
+ __le32 bmControls;
+ __le16 wExTerminalDescrID;
+ __le16 wConnectorsDescrID;
+ __le16 wTerminalDescrStr;
+} __attribute__((packed));
+
+/* 4.5.2.7 FEATURE UNIT DESCRIPTOR */
+struct uac3_feature_unit_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bUnitID;
+ __u8 bSourceID;
+ /* bmaControls is actually u32,
+ * but u8 is needed for the hybrid parser */
+ __u8 bmaControls[0]; /* variable length */
+ /* wFeatureDescrStr omitted */
+} __attribute__((packed));
+
+#define UAC3_DT_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 4)
+
+/* As above, but more useful for defining your own descriptors */
+#define DECLARE_UAC3_FEATURE_UNIT_DESCRIPTOR(ch) \
+struct uac3_feature_unit_descriptor_##ch { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubtype; \
+ __u8 bUnitID; \
+ __u8 bSourceID; \
+ __le32 bmaControls[ch + 1]; \
+ __le16 wFeatureDescrStr; \
+} __attribute__ ((packed))
+
+/* 4.5.2.12 CLOCK SOURCE DESCRIPTOR */
+struct uac3_clock_source_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bClockID;
+ __u8 bmAttributes;
+ __le32 bmControls;
+ __u8 bReferenceTerminal;
+ __le16 wClockSourceStr;
+} __attribute__((packed));
+
+/* bmAttribute fields */
+#define UAC3_CLOCK_SOURCE_TYPE_EXT 0x0
+#define UAC3_CLOCK_SOURCE_TYPE_INT 0x1
+#define UAC3_CLOCK_SOURCE_ASYNC (0 << 2)
+#define UAC3_CLOCK_SOURCE_SYNCED_TO_SOF (1 << 1)
+
+/* 4.5.2.13 CLOCK SELECTOR DESCRIPTOR */
+struct uac3_clock_selector_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bClockID;
+ __u8 bNrInPins;
+ __u8 baCSourceID[];
+ /* bmControls and wCSelectorDescrStr omitted */
+} __attribute__((packed));
+
+/* 4.5.2.14 CLOCK MULTIPLIER DESCRIPTOR */
+struct uac3_clock_multiplier_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bClockID;
+ __u8 bCSourceID;
+ __le32 bmControls;
+ __le16 wCMultiplierDescrStr;
+} __attribute__((packed));
+
+/* 4.5.2.15 POWER DOMAIN DESCRIPTOR */
+struct uac3_power_domain_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bPowerDomainID;
+ __le16 waRecoveryTime1;
+ __le16 waRecoveryTime2;
+ __u8 bNrEntities;
+ __u8 baEntityID[];
+ /* wPDomainDescrStr omitted */
+} __attribute__((packed));
+
+/* As above, but more useful for defining your own descriptors */
+#define DECLARE_UAC3_POWER_DOMAIN_DESCRIPTOR(n) \
+struct uac3_power_domain_descriptor_##n { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubtype; \
+ __u8 bPowerDomainID; \
+ __le16 waRecoveryTime1; \
+ __le16 waRecoveryTime2; \
+ __u8 bNrEntities; \
+ __u8 baEntityID[n]; \
+ __le16 wPDomainDescrStr; \
+} __attribute__ ((packed))
+
+/* 4.7.2 CLASS-SPECIFIC AS INTERFACE DESCRIPTOR */
+struct uac3_as_header_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bTerminalLink;
+ __le32 bmControls;
+ __le16 wClusterDescrID;
+ __le64 bmFormats;
+ __u8 bSubslotSize;
+ __u8 bBitResolution;
+ __le16 bmAuxProtocols;
+ __u8 bControlSize;
+} __attribute__((packed));
+
+#define UAC3_FORMAT_TYPE_I_RAW_DATA (1 << 6)
+
+/* 4.8.1.2 CLASS-SPECIFIC AS ISOCHRONOUS AUDIO DATA ENDPOINT DESCRIPTOR */
+struct uac3_iso_endpoint_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __le32 bmControls;
+ __u8 bLockDelayUnits;
+ __le16 wLockDelay;
+} __attribute__((packed));
+
+/* 5.2.1.6.1 INSERTION CONTROL PARAMETER BLOCK */
+struct uac3_insertion_ctl_blk {
+ __u8 bSize;
+ __u8 bmConInserted;
+} __attribute__ ((packed));
+
+/* 6.1 INTERRUPT DATA MESSAGE */
+struct uac3_interrupt_data_msg {
+ __u8 bInfo;
+ __u8 bSourceType;
+ __le16 wValue;
+ __le16 wIndex;
+} __attribute__((packed));
+
+/* A.2 AUDIO AUDIO FUNCTION SUBCLASS CODES */
+#define UAC3_FUNCTION_SUBCLASS_UNDEFINED 0x00
+#define UAC3_FUNCTION_SUBCLASS_FULL_ADC_3_0 0x01
+/* BADD profiles */
+#define UAC3_FUNCTION_SUBCLASS_GENERIC_IO 0x20
+#define UAC3_FUNCTION_SUBCLASS_HEADPHONE 0x21
+#define UAC3_FUNCTION_SUBCLASS_SPEAKER 0x22
+#define UAC3_FUNCTION_SUBCLASS_MICROPHONE 0x23
+#define UAC3_FUNCTION_SUBCLASS_HEADSET 0x24
+#define UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER 0x25
+#define UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE 0x26
+
+/* A.7 AUDIO FUNCTION CATEGORY CODES */
+#define UAC3_FUNCTION_SUBCLASS_UNDEFINED 0x00
+#define UAC3_FUNCTION_DESKTOP_SPEAKER 0x01
+#define UAC3_FUNCTION_HOME_THEATER 0x02
+#define UAC3_FUNCTION_MICROPHONE 0x03
+#define UAC3_FUNCTION_HEADSET 0x04
+#define UAC3_FUNCTION_TELEPHONE 0x05
+#define UAC3_FUNCTION_CONVERTER 0x06
+#define UAC3_FUNCTION_SOUND_RECORDER 0x07
+#define UAC3_FUNCTION_IO_BOX 0x08
+#define UAC3_FUNCTION_MUSICAL_INSTRUMENT 0x09
+#define UAC3_FUNCTION_PRO_AUDIO 0x0a
+#define UAC3_FUNCTION_AUDIO_VIDEO 0x0b
+#define UAC3_FUNCTION_CONTROL_PANEL 0x0c
+#define UAC3_FUNCTION_HEADPHONE 0x0d
+#define UAC3_FUNCTION_GENERIC_SPEAKER 0x0e
+#define UAC3_FUNCTION_HEADSET_ADAPTER 0x0f
+#define UAC3_FUNCTION_SPEAKERPHONE 0x10
+#define UAC3_FUNCTION_OTHER 0xff
+
+/* A.8 AUDIO CLASS-SPECIFIC DESCRIPTOR TYPES */
+#define UAC3_CS_UNDEFINED 0x20
+#define UAC3_CS_DEVICE 0x21
+#define UAC3_CS_CONFIGURATION 0x22
+#define UAC3_CS_STRING 0x23
+#define UAC3_CS_INTERFACE 0x24
+#define UAC3_CS_ENDPOINT 0x25
+#define UAC3_CS_CLUSTER 0x26
+
+/* A.10 CLUSTER DESCRIPTOR SEGMENT TYPES */
+#define UAC3_SEGMENT_UNDEFINED 0x00
+#define UAC3_CLUSTER_DESCRIPTION 0x01
+#define UAC3_CLUSTER_VENDOR_DEFINED 0x1F
+#define UAC3_CHANNEL_INFORMATION 0x20
+#define UAC3_CHANNEL_AMBISONIC 0x21
+#define UAC3_CHANNEL_DESCRIPTION 0x22
+#define UAC3_CHANNEL_VENDOR_DEFINED 0xFE
+#define UAC3_END_SEGMENT 0xFF
+
+/* A.11 CHANNEL PURPOSE DEFINITIONS */
+#define UAC3_PURPOSE_UNDEFINED 0x00
+#define UAC3_PURPOSE_GENERIC_AUDIO 0x01
+#define UAC3_PURPOSE_VOICE 0x02
+#define UAC3_PURPOSE_SPEECH 0x03
+#define UAC3_PURPOSE_AMBIENT 0x04
+#define UAC3_PURPOSE_REFERENCE 0x05
+#define UAC3_PURPOSE_ULTRASONIC 0x06
+#define UAC3_PURPOSE_VIBROKINETIC 0x07
+#define UAC3_PURPOSE_NON_AUDIO 0xFF
+
+/* A.12 CHANNEL RELATIONSHIP DEFINITIONS */
+#define UAC3_CH_RELATIONSHIP_UNDEFINED 0x00
+#define UAC3_CH_MONO 0x01
+#define UAC3_CH_LEFT 0x02
+#define UAC3_CH_RIGHT 0x03
+#define UAC3_CH_ARRAY 0x04
+#define UAC3_CH_PATTERN_X 0x20
+#define UAC3_CH_PATTERN_Y 0x21
+#define UAC3_CH_PATTERN_A 0x22
+#define UAC3_CH_PATTERN_B 0x23
+#define UAC3_CH_PATTERN_M 0x24
+#define UAC3_CH_PATTERN_S 0x25
+#define UAC3_CH_FRONT_LEFT 0x80
+#define UAC3_CH_FRONT_RIGHT 0x81
+#define UAC3_CH_FRONT_CENTER 0x82
+#define UAC3_CH_FRONT_LEFT_OF_CENTER 0x83
+#define UAC3_CH_FRONT_RIGHT_OF_CENTER 0x84
+#define UAC3_CH_FRONT_WIDE_LEFT 0x85
+#define UAC3_CH_FRONT_WIDE_RIGHT 0x86
+#define UAC3_CH_SIDE_LEFT 0x87
+#define UAC3_CH_SIDE_RIGHT 0x88
+#define UAC3_CH_SURROUND_ARRAY_LEFT 0x89
+#define UAC3_CH_SURROUND_ARRAY_RIGHT 0x8A
+#define UAC3_CH_BACK_LEFT 0x8B
+#define UAC3_CH_BACK_RIGHT 0x8C
+#define UAC3_CH_BACK_CENTER 0x8D
+#define UAC3_CH_BACK_LEFT_OF_CENTER 0x8E
+#define UAC3_CH_BACK_RIGHT_OF_CENTER 0x8F
+#define UAC3_CH_BACK_WIDE_LEFT 0x90
+#define UAC3_CH_BACK_WIDE_RIGHT 0x91
+#define UAC3_CH_TOP_CENTER 0x92
+#define UAC3_CH_TOP_FRONT_LEFT 0x93
+#define UAC3_CH_TOP_FRONT_RIGHT 0x94
+#define UAC3_CH_TOP_FRONT_CENTER 0x95
+#define UAC3_CH_TOP_FRONT_LOC 0x96
+#define UAC3_CH_TOP_FRONT_ROC 0x97
+#define UAC3_CH_TOP_FRONT_WIDE_LEFT 0x98
+#define UAC3_CH_TOP_FRONT_WIDE_RIGHT 0x99
+#define UAC3_CH_TOP_SIDE_LEFT 0x9A
+#define UAC3_CH_TOP_SIDE_RIGHT 0x9B
+#define UAC3_CH_TOP_SURR_ARRAY_LEFT 0x9C
+#define UAC3_CH_TOP_SURR_ARRAY_RIGHT 0x9D
+#define UAC3_CH_TOP_BACK_LEFT 0x9E
+#define UAC3_CH_TOP_BACK_RIGHT 0x9F
+#define UAC3_CH_TOP_BACK_CENTER 0xA0
+#define UAC3_CH_TOP_BACK_LOC 0xA1
+#define UAC3_CH_TOP_BACK_ROC 0xA2
+#define UAC3_CH_TOP_BACK_WIDE_LEFT 0xA3
+#define UAC3_CH_TOP_BACK_WIDE_RIGHT 0xA4
+#define UAC3_CH_BOTTOM_CENTER 0xA5
+#define UAC3_CH_BOTTOM_FRONT_LEFT 0xA6
+#define UAC3_CH_BOTTOM_FRONT_RIGHT 0xA7
+#define UAC3_CH_BOTTOM_FRONT_CENTER 0xA8
+#define UAC3_CH_BOTTOM_FRONT_LOC 0xA9
+#define UAC3_CH_BOTTOM_FRONT_ROC 0xAA
+#define UAC3_CH_BOTTOM_FRONT_WIDE_LEFT 0xAB
+#define UAC3_CH_BOTTOM_FRONT_WIDE_RIGHT 0xAC
+#define UAC3_CH_BOTTOM_SIDE_LEFT 0xAD
+#define UAC3_CH_BOTTOM_SIDE_RIGHT 0xAE
+#define UAC3_CH_BOTTOM_SURR_ARRAY_LEFT 0xAF
+#define UAC3_CH_BOTTOM_SURR_ARRAY_RIGHT 0xB0
+#define UAC3_CH_BOTTOM_BACK_LEFT 0xB1
+#define UAC3_CH_BOTTOM_BACK_RIGHT 0xB2
+#define UAC3_CH_BOTTOM_BACK_CENTER 0xB3
+#define UAC3_CH_BOTTOM_BACK_LOC 0xB4
+#define UAC3_CH_BOTTOM_BACK_ROC 0xB5
+#define UAC3_CH_BOTTOM_BACK_WIDE_LEFT 0xB6
+#define UAC3_CH_BOTTOM_BACK_WIDE_RIGHT 0xB7
+#define UAC3_CH_LOW_FREQUENCY_EFFECTS 0xB8
+#define UAC3_CH_LFE_LEFT 0xB9
+#define UAC3_CH_LFE_RIGHT 0xBA
+#define UAC3_CH_HEADPHONE_LEFT 0xBB
+#define UAC3_CH_HEADPHONE_RIGHT 0xBC
+
+/* A.15 AUDIO CLASS-SPECIFIC AC INTERFACE DESCRIPTOR SUBTYPES */
+/* see audio.h for the rest, which is identical to v1 */
+#define UAC3_EXTENDED_TERMINAL 0x04
+#define UAC3_MIXER_UNIT 0x05
+#define UAC3_SELECTOR_UNIT 0x06
+#define UAC3_FEATURE_UNIT 0x07
+#define UAC3_EFFECT_UNIT 0x08
+#define UAC3_PROCESSING_UNIT 0x09
+#define UAC3_EXTENSION_UNIT 0x0a
+#define UAC3_CLOCK_SOURCE 0x0b
+#define UAC3_CLOCK_SELECTOR 0x0c
+#define UAC3_CLOCK_MULTIPLIER 0x0d
+#define UAC3_SAMPLE_RATE_CONVERTER 0x0e
+#define UAC3_CONNECTORS 0x0f
+#define UAC3_POWER_DOMAIN 0x10
+
+/* A.20 PROCESSING UNIT PROCESS TYPES */
+#define UAC3_PROCESS_UNDEFINED 0x00
+#define UAC3_PROCESS_UP_DOWNMIX 0x01
+#define UAC3_PROCESS_STEREO_EXTENDER 0x02
+#define UAC3_PROCESS_MULTI_FUNCTION 0x03
+
+/* A.22 AUDIO CLASS-SPECIFIC REQUEST CODES */
+/* see audio-v2.h for the rest, which is identical to v2 */
+#define UAC3_CS_REQ_INTEN 0x04
+#define UAC3_CS_REQ_STRING 0x05
+#define UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR 0x06
+
+/* A.23.1 AUDIOCONTROL INTERFACE CONTROL SELECTORS */
+#define UAC3_AC_CONTROL_UNDEFINED 0x00
+#define UAC3_AC_ACTIVE_INTERFACE_CONTROL 0x01
+#define UAC3_AC_POWER_DOMAIN_CONTROL 0x02
+
+/* A.23.5 TERMINAL CONTROL SELECTORS */
+#define UAC3_TE_UNDEFINED 0x00
+#define UAC3_TE_INSERTION 0x01
+#define UAC3_TE_OVERLOAD 0x02
+#define UAC3_TE_UNDERFLOW 0x03
+#define UAC3_TE_OVERFLOW 0x04
+#define UAC3_TE_LATENCY 0x05
+
+/* A.23.10 PROCESSING UNITS CONTROL SELECTROS */
+
+/* Up/Down Mixer */
+#define UAC3_UD_MODE_SELECT 0x01
+
+/* Stereo Extender */
+#define UAC3_EXT_WIDTH_CONTROL 0x01
+
+
+/* BADD predefined Unit/Terminal values */
+#define UAC3_BADD_IT_ID1 1 /* Input Terminal ID1: bTerminalID = 1 */
+#define UAC3_BADD_FU_ID2 2 /* Feature Unit ID2: bUnitID = 2 */
+#define UAC3_BADD_OT_ID3 3 /* Output Terminal ID3: bTerminalID = 3 */
+#define UAC3_BADD_IT_ID4 4 /* Input Terminal ID4: bTerminalID = 4 */
+#define UAC3_BADD_FU_ID5 5 /* Feature Unit ID5: bUnitID = 5 */
+#define UAC3_BADD_OT_ID6 6 /* Output Terminal ID6: bTerminalID = 6 */
+#define UAC3_BADD_FU_ID7 7 /* Feature Unit ID7: bUnitID = 7 */
+#define UAC3_BADD_MU_ID8 8 /* Mixer Unit ID8: bUnitID = 8 */
+#define UAC3_BADD_CS_ID9 9 /* Clock Source Entity ID9: bClockID = 9 */
+#define UAC3_BADD_PD_ID10 10 /* Power Domain ID10: bPowerDomainID = 10 */
+#define UAC3_BADD_PD_ID11 11 /* Power Domain ID11: bPowerDomainID = 11 */
+
+/* BADD wMaxPacketSize of AS endpoints */
+#define UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16 0x0060
+#define UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16 0x0062
+#define UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24 0x0090
+#define UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24 0x0093
+#define UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16 0x00C0
+#define UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16 0x00C4
+#define UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24 0x0120
+#define UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24 0x0126
+
+/* BADD sample rate is always fixed to 48kHz */
+#define UAC3_BADD_SAMPLING_RATE 48000
+
+/* BADD power domains recovery times in 50us increments */
+#define UAC3_BADD_PD_RECOVER_D1D0 0x0258 /* 30ms */
+#define UAC3_BADD_PD_RECOVER_D2D0 0x1770 /* 300ms */
+
+#endif /* __LINUX_USB_AUDIO_V3_H */