565 lines
16 KiB
C
565 lines
16 KiB
C
#ifndef USB_AUDIO_H
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#define USB_AUDIO_H
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// (Partial) USB Device Class Definition for Audio Devices
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// R1: Release 1.0 March 18, 1998
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// R2: Release 2.0 May 31, 2006
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#include <SupportDefs.h>
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#define USB_AUDIO_DEVICE_CLASS 0x01
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#define USB_AUDIO_CLASS_VERSION 0x0100
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enum {
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USB_AUDIO_INTERFACE_AUDIO_CLASS = 0x01
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};
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enum { // Audio Interface Subclasses
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USB_AUDIO_INTERFACE_UNDEFINED_SUBCLASS = 0x00,
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USB_AUDIO_INTERFACE_AUDIOCONTROL_SUBCLASS = 0x01,
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USB_AUDIO_INTERFACE_AUDIOSTREAMING_SUBCLASS, //
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USB_AUDIO_INTERFACE_MIDISTREAMING_SUBCLASS //
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};
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enum { // Audio Interface Protocol Codes
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USB_AUDIO_PROTOCOL_UNDEFINED = 0x00
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};
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enum { // Audio Interface Protocol Codes
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USB_AUDIO_CS_UNDEFINED = 0x20,
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USB_AUDIO_CS_DEVICE = 0x21,
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USB_AUDIO_CS_CONFIGURATION = 0x22,
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USB_AUDIO_CS_STRING = 0x23,
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USB_AUDIO_CS_INTERFACE = 0x24,
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USB_AUDIO_CS_ENDPOINT = 0x25
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};
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enum { // Audio Class-Specific AudioControl Interface descriptor subtypes
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USB_AUDIO_AC_DESCRIPTOR_UNDEFINED = 0x00,
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USB_AUDIO_AC_HEADER = 0x01,
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USB_AUDIO_AC_INPUT_TERMINAL = 0x02,
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USB_AUDIO_AC_OUTPUT_TERMINAL = 0x03,
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USB_AUDIO_AC_MIXER_UNIT = 0x04,
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USB_AUDIO_AC_SELECTOR_UNIT = 0x05,
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USB_AUDIO_AC_FEATURE_UNIT = 0x06,
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USB_AUDIO_AC_PROCESSING_UNIT = 0x07,
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USB_AUDIO_AC_EXTENSION_UNIT = 0x08,
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USB_AUDIO_AC_EFFECT_UNIT_R2 = 0x07,
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USB_AUDIO_AC_PROCESSING_UNIT_R2 = 0x08,
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USB_AUDIO_AC_EXTENSION_UNIT_R2 = 0x09,
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USB_AUDIO_AC_CLOCK_SOURCE_R2 = 0x0A,
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USB_AUDIO_AC_CLOCK_SELECTOR_R2 = 0x0B,
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USB_AUDIO_AC_CLOCK_MULTIPLIER_R2 = 0x0C,
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USB_AUDIO_AC_SAMPLE_RATE_CONVERTER_R2 = 0x0D
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};
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// Class Specific Audio Control Interface Header
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// R1: Table 4-2 p.37 / R2: Table 4-5 p.48
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_HEADER
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uint16 bcd_release_no;
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union {
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struct {
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uint16 total_length;
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uint8 in_collection;
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uint8 interface_numbers[1];
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} _PACKED r1;
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struct {
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uint8 function_category;
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uint16 total_length;
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uint8 bm_controls;
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} _PACKED r2;
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};
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} _PACKED usb_audiocontrol_header_descriptor;
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// Input Terminal Descriptor
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// R1: Table 4-3 p.39 / R2: Table 4-9, page 53
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_INPUT_TERMINAL
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uint8 terminal_id;
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uint16 terminal_type;
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uint8 assoc_terminal;
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union {
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struct {
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uint8 num_channels;
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uint8 channel_config;
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uint8 channel_names;
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uint8 terminal;
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} _PACKED r1;
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struct {
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uint8 clock_source_id;
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uint8 num_channels;
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uint32 channel_config;
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uint8 channel_names;
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uint16 bm_controls;
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uint8 terminal;
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} _PACKED r2;
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};
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} _PACKED usb_audio_input_terminal_descriptor;
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// Output Terminal Descriptor
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// R1: Table 4-4 p.40 / R2: Table 4-10, page 54
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_OUTPUT_TERMINAL
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uint8 terminal_id;
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uint16 terminal_type;
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uint8 assoc_terminal;
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uint8 source_id;
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union {
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struct {
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uint8 terminal;
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} _PACKED r1;
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struct {
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uint8 clock_source_id;
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uint16 bm_controls;
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uint8 terminal;
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} _PACKED r2;
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};
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} _PACKED usb_audio_output_terminal_descriptor;
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// pseudo-descriptor for a section corresponding to logical output channels
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// used in mixer, processing and extension descriptions.
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typedef struct {
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uint8 num_output_pins; // number of mixer output pins
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uint16 channel_config; // location of logical channels
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uint8 channel_names; // id of name string of first logical channel
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} _PACKED usb_audio_output_channels_descriptor_r1;
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typedef struct {
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uint8 num_output_pins; // number of mixer output pins
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uint32 channel_config; // location of logical channels
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uint8 channel_names; // id of name string of first logical channel
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} _PACKED usb_audio_output_channels_descriptor;
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// Mixer Unit Descriptor
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// R1: Table 4-5 p.41 / R2: Table 4-11, page 57
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_MIXER_UNIT
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uint8 unit_id;
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uint8 num_input_pins;
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uint8 input_pins[1];
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// use usb_audio_output_channels_descriptor to parse the rest
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} _PACKED usb_audio_mixer_unit_descriptor;
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// Selector Unit Descriptor
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// R1: Table 4-6 p.43 / R2: Table 4-12, page 58
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_SELECTOR_UNIT
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uint8 unit_id;
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uint8 num_input_pins;
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uint8 input_pins[1];
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// uint8 selector_string;
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} _PACKED usb_audio_selector_unit_descriptor;
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// Feature Unit Descriptor
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// R1: Table 4-7 p.43 / R2: Table 4-13, page 59
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_FEATURE_UNIT
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uint8 unit_id;
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uint8 source_id;
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union {
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struct {
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uint8 control_size;
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uint8 bma_controls[1];
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// uint8 feature_string;
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} _PACKED r1;
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struct {
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uint32 bma_controls[1];
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// uint8 feature_string;
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} _PACKED r2;
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};
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} _PACKED usb_audio_feature_unit_descriptor;
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// Processing Unit Descriptor
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// R1: Table 4-8 p.45 / R2: Table 4-20, page 66
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_PROCESSING_UNIT
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uint8 unit_id;
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uint16 process_type;
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uint8 num_input_pins;
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uint8 input_pins[1];
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// use usb_audio_output_channels_descriptor to parse the rest
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// TODO - the bmControl!!!!
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} _PACKED usb_audio_processing_unit_descriptor;
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// Extension Unit Descriptor
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// R1: Table 4-15, p. 56 / R2: Table 4-24, p.73
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AC_EXTENSION_UNIT
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uint8 unit_id;
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uint16 extension_code;
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uint8 num_input_pins;
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uint8 input_pins[1];
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// use usb_audio_output_channels_descriptor to parse the rest
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} _PACKED usb_audio_extension_unit_descriptor;
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enum { // Audio Class-Specific AudioStreaming Interface descriptor subtypes
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USB_AUDIO_AS_DESCRIPTOR_UNDEFINED = 0x00,
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USB_AUDIO_AS_GENERAL = 0x01,
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USB_AUDIO_AS_FORMAT_TYPE = 0x02,
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USB_AUDIO_AS_FORMAT_SPECIFIC = 0x03
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};
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// Class Specific Audio Streaming Interface Descriptor
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// R1: Table 4-19 p.60 / R2: Table 4-27 p.76
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AS_GENERAL
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uint8 terminal_link;
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union {
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struct {
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uint8 delay;
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uint16 format_tag;
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} _PACKED r1;
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struct {
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uint8 bm_controls;
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uint8 format_type;
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uint32 bm_formats;
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uint8 num_output_pins;
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uint32 channel_config;
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uint8 channel_names;
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} _PACKED r2;
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};
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} _PACKED usb_audio_streaming_interface_descriptor;
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// Class-specific As Isochronous Audio Data Endpoint descriptor
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// R1: Table 4-21, p. 62 / R2: Table 4-34, page 87
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_ENDPOINT
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uint8 descriptor_subtype; // USB_AUDIO_EP_GENERAL
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uint8 attributes;
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uint8 lock_delay_units;
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uint16 lock_delay;
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} _PACKED usb_audio_streaming_endpoint_descriptor;
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// Sampling Rate are represented as 3-byte integer
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typedef struct {
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uint8 bytes[3];
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} _PACKED usb_audio_sampling_freq;
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// Format Type I/II/III Descriptors
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// T1: Table 2-1, p.10 etc.
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// T2: Table 2-2, p.15 etc.
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typedef struct {
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uint8 length;
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uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE
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uint8 descriptor_subtype; // USB_AUDIO_AS_FORMAT_TYPE
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uint8 format_type; // USB_AUDIO_FORMAT_TYPE_I/II/III
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union {
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struct {
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uint8 nr_channels;
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uint8 subframe_size;
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uint8 bit_resolution;
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uint8 sam_freq_type;
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usb_audio_sampling_freq sam_freqs[1];
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} _PACKED typeI;
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struct {
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uint16 max_bit_rate;
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uint16 samples_per_frame;
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uint8 sam_freq_type;
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usb_audio_sampling_freq sam_freqs[1];
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} _PACKED typeII;
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struct {
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uint8 nr_channels;
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uint8 subframe_size;
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uint8 bit_resolution;
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uint8 sam_freq_type;
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usb_audio_sampling_freq sam_freqs[1];
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} _PACKED typeIII;
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};
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} _PACKED usb_audio_format_descriptor;
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enum { // Processing Unit Process Types (for USB_AUDIO_AC_PROCESSING_UNIT)
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USB_AUDIO_UPDOWNMIX_PROCESS = 0x01,
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USB_AUDIO_DOLBY_PROLOGIC_PROCESS,
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USB_AUDIO_3D_STEREO_EXTENDER_PROCESS,
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USB_AUDIO_REVERBERATION_PROCESS,
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USB_AUDIO_CHORUS_PROCESS,
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USB_AUDIO_DYN_RANGE_COMP_PROCESS
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};
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enum { // Audio Class-Specific Request Codes
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USB_AUDIO_SET_CUR = 0x01,
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USB_AUDIO_GET_CUR = 0x81,
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USB_AUDIO_SET_MIN = 0x02,
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USB_AUDIO_GET_MIN = 0x82,
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USB_AUDIO_SET_MAX = 0x03,
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USB_AUDIO_GET_MAX = 0x83,
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USB_AUDIO_SET_RES = 0x04,
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USB_AUDIO_GET_RES = 0x84,
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USB_AUDIO_SET_MEM = 0x05,
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USB_AUDIO_GET_MEM = 0x85,
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USB_AUDIO_GET_STATUS = 0xFF
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};
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enum { // Terminal Control Selectors
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USB_AUDIO_COPY_PROTECT_CONTROL = 0x01
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};
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// R2: A.17.5 Mixer Unit Control Selectors
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enum {
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USB_AUDIO_MU_CONTROL_UNDEFINED = 0x00,
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USB_AUDIO_MIXER_CONTROL = 0x01,
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USB_AUDIO_CLUSTER_CONTROL = 0x02,
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USB_AUDIO_UNDERFLOW_CONTROL = 0x03,
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USB_AUDIO_OVERFLOW_CONTROL = 0x04,
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USB_AUDIO_LATENCY_CONTROL = 0x05
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};
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/* A.10.2 Feature Unit Control Selectors */
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enum {
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USB_AUDIO_AC_FU_CONTROL_UNDEFINED = 0x00,
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USB_AUDIO_MUTE_CONTROL = 0x01,
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USB_AUDIO_VOLUME_CONTROL = 0x02,
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USB_AUDIO_BASS_CONTROL = 0x03,
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USB_AUDIO_MID_CONTROL = 0x04,
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USB_AUDIO_TREBLE_CONTROL = 0x05,
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USB_AUDIO_GRAPHIC_EQUALIZER_CONTROL = 0x06,
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USB_AUDIO_AUTOMATIC_GAIN_CONTROL = 0x07,
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USB_AUDIO_DELAY_CONTROL = 0x08,
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USB_AUDIO_BASS_BOOST_CONTROL = 0x09,
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USB_AUDIO_LOUDNESS_CONTROL = 0x0A
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};
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/* A.10.3.1 Up/Down-mix Processing Unit Control Selectors */
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#define USB_AUDIO_UD_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_UD_ENABLED_CONTROL 0x01
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#define USB_AUDIO_UD_MODE_SELECT_CONTROL 0x02
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/* A.10.3.2 Dolby Prologic(tm) Processing Unit Control Selectors */
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#define USB_AUDIO_DP_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_DP_ENABLE_CONTROL 0x01
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#define USB_AUDIO_DP_MODE_SELECT_CONTROL 0x02
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/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
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#define USB_AUDIO_3D_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_3D_ENABLED_CONTROL 0x01
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#define USB_AUDIO_3D_SPACIOUSNESS_CONTROL 0x03
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/* A.10.3.4 Reverberation Processing Unit Control Selectors */
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#define USB_AUDIO_RV_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_RV_ENABLE_CONTROL 0x01
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#define USB_AUDIO_RV_REVERB_LEVEL_CONTROL 0x02
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#define USB_AUDIO_RV_REVERB_TIME_CONTROL 0x03
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#define USB_AUDIO_RV_REVERB_FEEDBACK_CONTROL 0x04
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/* A.10.3.5 Chorus Processing Unit Control Selectors */
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#define USB_AUDIO_CH_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_CH_ENABLE_CONTROL 0x01
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#define USB_AUDIO_CHORUS_LEVEL_CONTROL 0x02
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#define USB_AUDIO_CHORUS_RATE_CONTROL 0x03
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#define USB_AUDIO_CHORUS_DETH_CONTROL 0x04
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/* A.10.3.6 Dynamic Range Compressor Processing Unit Control Selectors */
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#define USB_AUDIO_DR_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_DR_ENABLE_CONTROL 0x01
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#define USB_AUDIO_COMPRESSION_RATE_CONTROL 0x02
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#define USB_AUDIO_MAXAMPL_CONTROL 0x03
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#define USB_AUDIO_THRESHOLD_CONTROL 0x04
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#define USB_AUDIO_ATTACK_TIME 0x05
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#define USB_AUDIO_RELEASE_TIME 0x06
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/* A.10.4 Extension Unit Control Selectors */
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#define USB_AUDIO_XU_CONTROL_UNDEFINED 0x00
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#define USB_AUDIO_XU_ENABLE_CONTROL 0x01
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/* A.10.5 Endpoint Control Selectors */
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enum {
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USB_AUDIO_EP_CONTROL_UNDEFINED = 0x00,
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USB_AUDIO_SAMPLING_FREQ_CONTROL = 0x01,
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USB_AUDIO_PITCH_CONTROL = 0x02
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};
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/*
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typedef struct
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{
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uint8 length;
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uint8 type;
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uint8 subtype;
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uint8 unit_id;
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uint8 source_id;
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uint8 control_size;
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uint16 controls[0];
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} _PACKED usb_audio_feature_unit_descriptor;
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typedef struct {
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uint8 length;
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uint8 type;
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uint8 subtype;
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uint8 format_type;
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uint8 num_channels;
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uint8 subframe_size;
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uint8 bit_resolution;
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uint8 sample_freq_type;
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uint8 sample_freq[3]; // [0] + [1] << 8 + [2] << 16
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// if sample_freq_type != 1,
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// (sample_freq_type - 1) x uint8 sample_freq[3] follows...
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} _PACKED usb_audio_format_type_descriptor;
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*/
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// bitset for feature control bitmap
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// Table 4-7, page 44, bmaControls field
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enum {
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BMA_CTL_MUTE_R1 = 0X0001,
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BMA_CTL_VOLUME_R1 = 0X0002,
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BMA_CTL_BASS_R1 = 0X0004,
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BMA_CTL_MID_R1 = 0X0008,
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BMA_CTL_TREBLE_R1 = 0X0010,
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BMA_CTL_GRAPHEQ_R1 = 0X0020,
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BMA_CTL_AUTOGAIN_R1 = 0X0040,
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BMA_CTL_DELAY_R1 = 0X0080,
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BMA_CTL_BASSBOOST_R1 = 0X0100,
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BMA_CTL_LOUDNESS_R1 = 0X0200,
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// Release 2.0
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BMA_CTL_MUTE = 0X00000003,
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BMA_CTL_VOLUME = 0X0000000C,
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BMA_CTL_BASS = 0X00000030,
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BMA_CTL_MID = 0X000000C0,
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BMA_CTL_TREBLE = 0X00000300,
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BMA_CTL_GRAPHEQ = 0X00000C00,
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BMA_CTL_AUTOGAIN = 0X00003000,
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BMA_CTL_DELAY = 0X0000C000,
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BMA_CTL_BASSBOOST = 0X00030000,
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BMA_CTL_LOUDNESS = 0X000C0000,
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BMA_CTL_INPUTGAIN = 0X00300000,
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BMA_CTL_INPUTGAINPAD = 0X00C00000,
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BMA_CTL_PHASEINVERTER = 0X03000000,
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BMA_CTL_UNDERFLOW = 0X0C000000,
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BMA_CTL_OVERFLOW = 0X30000000
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};
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// Table A-4, page 30
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// Format Type Codes
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enum {
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USB_AUDIO_FORMAT_TYPE_UNDEFINED = 0x00,
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USB_AUDIO_FORMAT_TYPE_I = 0x01,
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USB_AUDIO_FORMAT_TYPE_II = 0x02,
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USB_AUDIO_FORMAT_TYPE_III = 0x03
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};
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// Table A-1, page 29, wFormatTag
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// Audio Data Format Type I codes
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enum {
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USB_AUDIO_FORMAT_TYPE_I_UNDEFINED = 0x0000,
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USB_AUDIO_FORMAT_PCM = 0x0001,
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USB_AUDIO_FORMAT_PCM8 = 0x0002,
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USB_AUDIO_FORMAT_IEEE_FLOAT = 0x0003,
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USB_AUDIO_FORMAT_ALAW = 0x0004,
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USB_AUDIO_FORMAT_MULAW = 0x0005
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};
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enum {
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// USB Terminal Types
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USB_AUDIO_UNDEFINED_USB_IO = 0x100,
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USB_AUDIO_STREAMING_USB_IO = 0x101,
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USB_AUDIO_VENDOR_USB_IO = 0x1ff,
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// Input Terminal Types
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USB_AUDIO_UNDEFINED_IN = 0x200,
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USB_AUDIO_MICROPHONE_IN = 0x201,
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USB_AUDIO_DESKTOPMIC_IN = 0x202,
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USB_AUDIO_PERSONALMIC_IN = 0x203,
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USB_AUDIO_OMNI_MIC_IN = 0x204,
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USB_AUDIO_MICS_ARRAY_IN = 0x205,
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USB_AUDIO_PROC_MICS_ARRAY_IN = 0x206,
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// Output Terminal Types
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USB_AUDIO_UNDEFINED_OUT = 0x300,
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USB_AUDIO_SPEAKER_OUT = 0x301,
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USB_AUDIO_HEAD_PHONES_OUT = 0x302,
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USB_AUDIO_HMD_AUDIO_OUT = 0x303,
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USB_AUDIO_DESKTOP_SPEAKER = 0x304,
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USB_AUDIO_ROOM_SPEAKER = 0x305,
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USB_AUDIO_COMM_SPEAKER = 0x306,
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USB_AUDIO_LFE_SPEAKER = 0x307,
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// Bi-directional Terminal Types
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USB_AUDIO_UNDEFINED_IO = 0x400,
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USB_AUDIO_HANDSET_IO = 0x401,
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USB_AUDIO_HEADSET_IO = 0x402,
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USB_AUDIO_SPEAKER_PHONE_IO = 0x403,
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USB_AUDIO_SPEAKER_PHONEES_IO = 0x404,
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USB_AUDIO_SPEAKER_PHONEEC_IO = 0x405,
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// Telephony Terminal Types
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USB_AUDIO_UNDEF_TELEPHONY_IO = 0x500,
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USB_AUDIO_PHONE_LINE_IO = 0x501,
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USB_AUDIO_TELEPHONE_IO = 0x502,
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USB_AUDIO_DOWNLINE_PHONE_IO = 0x503,
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// External Terminal Types
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USB_AUDIO_UNDEFINEDEXT_IO = 0x600,
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USB_AUDIO_ANALOG_CONNECTOR_IO = 0x601,
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USB_AUDIO_DAINTERFACE_IO = 0x602,
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USB_AUDIO_LINE_CONNECTOR_IO = 0x603,
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USB_AUDIO_LEGACY_CONNECTOR_IO = 0x604,
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USB_AUDIO_SPDIF_INTERFACE_IO = 0x605,
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USB_AUDIO_DA1394_STREAM_IO = 0x606,
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USB_AUDIO_DV1394_STREAMSOUND_IO = 0x607,
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USB_AUDIO_ADAT_LIGHTPIPE_IO = 0x608,
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USB_AUDIO_TDIF_IO = 0x609,
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USB_AUDIO_MADI_IO = 0x60a,
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// Embedded Terminal Types
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USB_AUDIO_UNDEF_EMBEDDED_IO = 0x700,
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USB_AUDIO_LC_NOISE_SOURCE_OUT = 0x701,
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USB_AUDIO_EQUALIZATION_NOISE_OUT = 0x702,
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USB_AUDIO_CDPLAYER_IN = 0x703,
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USB_AUDIO_DAT_IO = 0x704,
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USB_AUDIO_DCC_IO = 0x705,
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USB_AUDIO_MINI_DISK_IO = 0x706,
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USB_AUDIO_ANALOG_TAPE_IO = 0x707,
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USB_AUDIO_PHONOGRAPH_IN = 0x708,
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USB_AUDIO_VCR_AUDIO_IN = 0x709,
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USB_AUDIO_VIDEO_DISC_AUDIO_IN = 0x70a,
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USB_AUDIO_DVD_AUDIO_IN = 0x70b,
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USB_AUDIO_TV_TUNER_AUDIO_IN = 0x70c,
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USB_AUDIO_SAT_RECEIVER_AUDIO_IN = 0x70d,
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USB_AUDIO_CABLE_TUNER_AUDIO_IN = 0x70e,
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USB_AUDIO_DSS_AUDIO_IN = 0x70f,
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USB_AUDIO_RADIO_RECEIVER_IN = 0x710,
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USB_AUDIO_RADIO_TRANSMITTER_IN = 0x711,
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USB_AUDIO_MULTI_TRACK_RECORDER_IO = 0x712,
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USB_AUDIO_SYNTHESIZER_IO = 0x713,
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USB_AUDIO_PIANO_IO = 0x714,
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USB_AUDIO_GUITAR_IO = 0x715,
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USB_AUDIO_DRUMS_IO = 0x716,
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USB_AUDIO_INSTRUMENT_IO = 0x717
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};
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#endif // USB_AUDIO_H
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