759 lines
41 KiB
C
759 lines
41 KiB
C
/*
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* Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc.
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* Copyright 2016 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "usb_device_config.h"
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#include "usb.h"
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#include "usb_device.h"
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#include "usb_device_audio.h"
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#include "usb_audio_config.h"
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#include "usb_device_descriptor.h"
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#include "audio_generator.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*******************************************************************************
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* Variables
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******************************************************************************/
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uint8_t g_UsbDeviceCurrentConfigure = 0U;
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uint8_t g_UsbDeviceInterface[USB_AUDIO_GENERATOR_INTERFACE_COUNT];
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/* Define device descriptor */
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USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE)
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uint8_t g_UsbDeviceDescriptor[] = {
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USB_DESCRIPTOR_LENGTH_DEVICE, /* Size of this descriptor in bytes */
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USB_DESCRIPTOR_TYPE_DEVICE, /* DEVICE Descriptor Type */
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USB_SHORT_GET_LOW(USB_DEVICE_SPECIFIC_BCD_VERSION),
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USB_SHORT_GET_HIGH(USB_DEVICE_SPECIFIC_BCD_VERSION), /* USB Specification Release Number in
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Binary-Coded Decimal (i.e., 2.10 is 210H). */
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USB_DEVICE_CLASS, /* Class code (assigned by the USB-IF). */
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USB_DEVICE_SUBCLASS, /* Subclass code (assigned by the USB-IF). */
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USB_DEVICE_PROTOCOL, /* Protocol code (assigned by the USB-IF). */
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USB_CONTROL_MAX_PACKET_SIZE, /* Maximum packet size for endpoint zero
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(only 8, 16, 32, or 64 are valid) */
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USB_SHORT_GET_LOW(USB_DEVICE_VID),
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USB_SHORT_GET_HIGH(USB_DEVICE_VID), /* Vendor ID (assigned by the USB-IF) */
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USB_SHORT_GET_LOW(USB_DEVICE_PID),
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USB_SHORT_GET_HIGH(USB_DEVICE_PID), /* Product ID (assigned by the manufacturer) */
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USB_SHORT_GET_LOW(USB_DEVICE_DEMO_BCD_VERSION),
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USB_SHORT_GET_HIGH(USB_DEVICE_DEMO_BCD_VERSION), /* Device release number in binary-coded decimal */
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0x01U, /* Index of string descriptor describing manufacturer */
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0x02U, /* Index of string descriptor describing product */
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0x00U, /* Index of string descriptor describing the
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device's serial number */
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USB_DEVICE_CONFIGURATION_COUNT, /* Number of possible configurations */
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};
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USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE)
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uint8_t g_UsbDeviceConfigurationDescriptor[] = {
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#if (USB_DEVICE_CONFIG_AUDIO_CLASS_2_0)
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USB_DESCRIPTOR_LENGTH_CONFIGURE, /* Size of this descriptor in bytes */
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USB_DESCRIPTOR_TYPE_CONFIGURE, /* CONFIGURATION Descriptor Type */
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USB_SHORT_GET_LOW(USB_DESCRIPTOR_LENGTH_CONFIGURE + 0x08U + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH + 0x08U + 0x11U + 0x0EU + 0x0CU +
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USB_DESCRIPTOR_LENGTH_INTERFACE + USB_DESCRIPTOR_LENGTH_INTERFACE + 0x10U + 0x06U +
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USB_AUDIO_STANDARD_AS_ISO_DATA_ENDPOINT_LENGTH + USB_AUDIO_CLASS_SPECIFIC_ENDPOINT_LENGTH),
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USB_SHORT_GET_HIGH(
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USB_DESCRIPTOR_LENGTH_CONFIGURE + 0x08U + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH + 0x08U + 0x11U + 0x0EU + 0x0CU + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_DESCRIPTOR_LENGTH_INTERFACE + 0x10U + 0x06U + USB_AUDIO_STANDARD_AS_ISO_DATA_ENDPOINT_LENGTH +
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USB_AUDIO_CLASS_SPECIFIC_ENDPOINT_LENGTH), /* Total length of data returned for this configuration. */
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USB_AUDIO_GENERATOR_INTERFACE_COUNT, /* Number of interfaces supported by this configuration */
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USB_AUDIO_GENERATOR_CONFIGURE_INDEX, /* Value to use as an argument to the
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SetConfiguration() request to select this configuration */
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0x00U, /* Index of string descriptor describing this configuration */
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(USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_D7_MASK) |
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(USB_DEVICE_CONFIG_SELF_POWER << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_SELF_POWERED_SHIFT) |
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(USB_DEVICE_CONFIG_REMOTE_WAKEUP << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_REMOTE_WAKEUP_SHIFT),
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/* Configuration characteristics
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D7: Reserved (set to one)
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D6: Self-powered
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D5: Remote Wakeup
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D4...0: Reserved (reset to zero)
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*/
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0xFAU, /* Maximum power consumption of the USB
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* device from the bus in this specific
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* configuration when the device is fully
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* operational. Expressed in 2 mA units
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* (i.e., 50 = 100 mA).
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*/
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0x08U, /* Descriptor size is 8 bytes */
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USB_DESCRIPTOR_TYPE_INTERFACE_ASSOCIATION, /* INTERFACE_ASSOCIATION Descriptor Type */
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0x00U, /* The first interface number associated with this function is 0 */
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0x02U, /* The number of contiguous interfaces associated with this function is 2 */
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USB_AUDIO_CLASS, /* The function belongs to the Audio Interface Class */
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0x00U, /* The function belongs to the SUBCLASS_UNDEFINED Subclass */
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USB_AUDIO_PROTOCOL, /* Protocol code = 32 */
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0x00U, /* The Function string descriptor index is 0 */
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USB_DESCRIPTOR_LENGTH_INTERFACE, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
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USB_AUDIO_CONTROL_INTERFACE_INDEX, /* The number of this interface is 0 */
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USB_AUDIO_GENERATOR_CONTROL_INTERFACE_ALTERNATE_0, /* The value used to select the alternate setting for this interface is 0 */
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0x00U, /* The number of endpoints used by this interface is 0 (excluding endpoint zero) */
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USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
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USB_SUBCLASS_AUDIOCONTROL, /* The interface implements the AUDIOCONTROL Subclass */
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USB_AUDIO_PROTOCOL, /* The Protocol code is 32 */
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0x02U, /* The interface string descriptor index is 2 */
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_HEADER, /* HEADER descriptor subtype */
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0x00U,
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0x02U, /* Audio Device compliant to the USB Audio specification version 2.00 */
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0x03U, /* MICROPHONE(0x03) : Indicating the primary use of this audio function */
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0x3CU,
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0x00U, /* Total number of bytes returned for the class-specific AudioControl interface descriptor. Includes
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the combined length of this descriptor header and all Unit and Terminal descriptors. */
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0x00U, /* D1..0: Latency Control */
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0x08U, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_CLOCK_SOURCE_UNIT, /* CLOCK_SOURCE descriptor subtype */
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USB_AUDIO_RECORDER_CONTROL_CLOCK_SOURCE_ENTITY_ID, /* Constant uniquely identifying the Clock Source Entity within
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the audio funcion */
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0x01U, /* D1..0: 01: Internal Fixed Clock
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D2: 0 Clock is not synchronized to SOF
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D7..3: Reserved, should set to 0 */
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0x07U, /* D1..0: Clock Frequency Control is present and Host programmable
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D3..2: Clock Validity Control is present but read-only
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D7..4: Reserved, should set to 0 */
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0x00U, /* This Clock Source has no association */
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0x02U, /* Index of a string descriptor, describing the Clock Source Entity */
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0x11U, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_INPUT_TERMINAL, /* INPUT_TERMINAL descriptor subtype */
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USB_AUDIO_RECORDER_CONTROL_INPUT_TERMINAL_ID, /* Constant uniquely identifying the Terminal within the audio
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function. This value is used in all requests to address this Terminal. */
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0x01U,
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0x02U, /* A generic microphone that does not fit under any of the other classifications. */
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0x00U, /* This Input Terminal has no association */
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USB_AUDIO_RECORDER_CONTROL_CLOCK_SOURCE_ENTITY_ID, /* ID of the Clock Entity to which this Input Terminal is
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connected. */
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0x01U, /* This Terminal's output audio channel cluster has 1 logical output channels */
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0x01U,
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0x00U,
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0x00U,
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0x00U, /* Describes the spatial location of the logical channels:: Mono, no spatial location */
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0x00U, /* Index of a string descriptor, describing the name of the first logical channel. */
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0x00U,
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0x00U, /* bmControls D1..0: Copy Protect Control is not present
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D3..2: Connector Control is not present
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D5..4: Overload Control is not present
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D7..6: Cluster Control is not present
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D9..8: Underflow Control is not present
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D11..10: Overflow Control is not present
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D15..12: Reserved, should set to 0*/
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0x02U, /* Index of a string descriptor, describing the Input Terminal. */
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0x0EU, /* Size of the descriptor, in bytes : 6 + (1 + 1) * 4 */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_FEATURE_UNIT, /* FEATURE_UNIT descriptor subtype */
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USB_AUDIO_RECORDER_CONTROL_FEATURE_UNIT_ID, /* Constant uniquely identifying the Unit within the audio function.
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This value is used in all requests to address this Unit. */
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USB_AUDIO_RECORDER_CONTROL_INPUT_TERMINAL_ID, /* ID of the Unit or Terminal to which this Feature Unit is connected.
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*/
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0x0FU,
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0x00U,
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0x00U,
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0x00U, /* logic channel 0 bmaControls(0)(0x0000000F): D1..0: Mute Control is present and host
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programmable D3..2: Volume Control is present and host programmable D5..4: Bass
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Control is not present D7..6: Mid Control is not present D9..8: Treble Control is not
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present D11..10: Graphic Equalizer Control is not present D13..12: Automatic Gain
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Control is not present D15..14: Delay Control is not present D17..16: Bass Control is
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not present D19..18: Loudness Control is not present D21..20: Input Gain Control is
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not present D23..22: Input Gain Pad Control is not present D25..24: Phase Inverter
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Control is not present D27..26: Underflow Control is not present D29..28: Overflow
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Control is not present D31..30: Reserved, should set to 0 */
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0x00U,
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0x00U,
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0x00U,
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0x00U,
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0x00U, /* Index of a string descriptor, describing this Feature Unit. */
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0x0CU, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_OUTPUT_TERMINAL, /* OUTPUT_TERMINAL descriptor subtype */
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USB_AUDIO_RECORDER_CONTROL_OUTPUT_TERMINAL_ID, /* Constant uniquely identifying the Terminal within the audio
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function. This value is used in all requests to address this Terminal. */
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0x01U,
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0x01U, /* A Terminal dealing with a signal carried over an endpoint in an AudioStreaming interface. The
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AudioStreaming interface descriptor points to the associated Terminal through the bTerminalLink field. */
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0x00U, /* This Output Terminal has no association */
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USB_AUDIO_RECORDER_CONTROL_FEATURE_UNIT_ID, /* ID of the Unit or Terminal to which this Terminal is connected. */
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USB_AUDIO_RECORDER_CONTROL_CLOCK_SOURCE_ENTITY_ID, /* ID of the Clock Entity to which this Output Terminal is
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connected */
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0x00U,
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0x00U, /* bmControls: D1..0: Copy Protect Control is not present
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D3..2: Connector Control is not present
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D5..4: Overload Control is not present
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D7..6: Underflow Control is not present
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D9..8: Overflow Control is not present
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D15..10: Reserved, should set to 0 */
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0x00U, /* Index of a string descriptor, describing the Output Terminal. */
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/* Audio Class Specific INTERFACE Descriptor, alternative interface 0 */
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USB_DESCRIPTOR_LENGTH_INTERFACE, /* Descriptor size is 9 bytes */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
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USB_AUDIO_STREAM_INTERFACE_INDEX, /* The number of this interface is 1. */
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USB_AUDIO_GENERATOR_STREAM_INTERFACE_ALTERNATE_0, /* The value used to select the alternate setting for this interface is 0 */
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0x00U, /* The number of endpoints used by this interface is 0 (excluding endpoint zero) */
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USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
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USB_SUBCLASS_AUDIOSTREAM, /* The interface implements the AUDIOSTREAMING Subclass */
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USB_AUDIO_PROTOCOL, /* The Protocol code is 32 */
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0x02U, /* The device doesn't have a string descriptor describing this iInterface */
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/* Audio Class Specific INTERFACE Descriptor, alternative interface 1 */
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USB_DESCRIPTOR_LENGTH_INTERFACE, /* Descriptor size is 9 bytes */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
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USB_AUDIO_STREAM_INTERFACE_INDEX, /*The number of this interface is 1. */
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USB_AUDIO_GENERATOR_STREAM_INTERFACE_ALTERNATE_1, /* The value used to select the alternate setting for this interface is 1 */
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0x01U, /* The number of endpoints used by this interface is 1 (excluding endpoint zero) */
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USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
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USB_SUBCLASS_AUDIOSTREAM, /* The interface implements the AUDIOSTREAMING Subclass */
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USB_AUDIO_PROTOCOL, /* The Protocol code is 32 */
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0x02U, /* The device doesn't have a string descriptor describing this iInterface */
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0x10U, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_AS_GENERAL, /* AS_GENERAL descriptor subtype */
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USB_AUDIO_RECORDER_CONTROL_OUTPUT_TERMINAL_ID, /* The Terminal ID of the terminal to which this interface is
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connected */
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0x00U, /* bmControls : D1..0: Active Alternate Setting Control is not present
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D3..2: Valid Alternate Settings Control is not present
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D7..4: Reserved, should set to 0 */
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USB_AUDIO_FORMAT_TYPE_I, /* The format type AudioStreaming interfae using is FORMAT_TYPE_I (0x01) */
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0x01U,
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0x00U,
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0x00U,
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0x00U, /* The Audio Data Format that can be Used to communicate with this interface */
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AUDIO_FORMAT_CHANNELS, /* Number of physical channels in the AS Interface audio channel cluster */
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0x01U,
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0x00U,
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0x00U,
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0x00U, /* Describes the spatial location of the logical channels: */
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0x00U, /* Index of a string descriptor, describing the name of the first physical channel */
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0x06U, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_FORMAT_TYPE, /* FORMAT_TYPE descriptor subtype */
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USB_AUDIO_FORMAT_TYPE_I, /* The format type AudioStreaming interfae using is FORMAT_TYPE_I (0x01) */
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#if defined(AUDIO_DATA_SOURCE_DMIC) && (AUDIO_DATA_SOURCE_DMIC > 0U)
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0x02U, /* The number of bytes occupied by one audio subslot. Can be 1, 2, 3 or 4. */
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0x10U, /* The number of effectively used bits from the available bits in an audio subslot */
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#else
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0x01U, /* The number of bytes occupied by one audio subslot. Can be 1, 2, 3 or 4. */
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0x08U, /* The number of effectively used bits from the available bits in an audio subslot */
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#endif
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/* ENDPOINT Descriptor */
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USB_AUDIO_STANDARD_AS_ISO_DATA_ENDPOINT_LENGTH, /* Descriptor size is 7 bytes */
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USB_DESCRIPTOR_TYPE_ENDPOINT, /* ENDPOINT Descriptor Type */
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USB_AUDIO_STREAM_ENDPOINT | (USB_IN << 7), /* This is an IN endpoint with endpoint number 2 */
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0x0DU, /* Types -
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Transfer: ISOCHRONOUS
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Sync: Sync
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Usage: Data EP */
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USB_SHORT_GET_LOW(FS_ISO_IN_ENDP_PACKET_SIZE),
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USB_SHORT_GET_HIGH(FS_ISO_IN_ENDP_PACKET_SIZE), /* Maximum packet size for this endpoint */
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ISO_IN_ENDP_INTERVAL, /* The polling interval value is every 1 Frames. If Hi-Speed, every 1 uFrames */
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/* Audio Class Specific ENDPOINT Descriptor */
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USB_AUDIO_CLASS_SPECIFIC_ENDPOINT_LENGTH, /* Size of the descriptor, in bytes */
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USB_AUDIO_STREAM_ENDPOINT_DESCRIPTOR, /* CS_ENDPOINT Descriptor Type */
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USB_AUDIO_EP_GENERAL_DESCRIPTOR_SUBTYPE, /* AUDIO_EP_GENERAL descriptor subtype */
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0x00U,
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0x00U,
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0x00U,
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0x00U,
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0x00U,
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#else
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USB_DESCRIPTOR_LENGTH_CONFIGURE, /* Size of this descriptor in bytes */
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USB_DESCRIPTOR_TYPE_CONFIGURE, /* CONFIGURATION Descriptor Type */
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USB_SHORT_GET_LOW(USB_DESCRIPTOR_LENGTH_CONFIGURE + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH + USB_AUDIO_INPUT_TERMINAL_ONLY_DESC_SIZE +
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USB_AUDIO_FEATURE_UNIT_ONLY_DESC_SIZE + USB_AUDIO_OUTPUT_TERMINAL_ONLY_DESC_SIZE +
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USB_DESCRIPTOR_LENGTH_AC_INTERRUPT_ENDPOINT + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_DESCRIPTOR_LENGTH_INTERFACE + USB_AUDIO_STREAMING_IFACE_DESC_SIZE +
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USB_AUDIO_STREAMING_TYPE_I_DESC_SIZE + USB_ENDPOINT_AUDIO_DESCRIPTOR_LENGTH +
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USB_AUDIO_STREAMING_ENDP_DESC_SIZE),
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USB_SHORT_GET_HIGH(USB_DESCRIPTOR_LENGTH_CONFIGURE + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH + USB_AUDIO_INPUT_TERMINAL_ONLY_DESC_SIZE +
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USB_AUDIO_FEATURE_UNIT_ONLY_DESC_SIZE + USB_AUDIO_OUTPUT_TERMINAL_ONLY_DESC_SIZE +
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USB_DESCRIPTOR_LENGTH_AC_INTERRUPT_ENDPOINT + USB_DESCRIPTOR_LENGTH_INTERFACE +
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USB_DESCRIPTOR_LENGTH_INTERFACE + USB_AUDIO_STREAMING_IFACE_DESC_SIZE +
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USB_AUDIO_STREAMING_TYPE_I_DESC_SIZE + USB_ENDPOINT_AUDIO_DESCRIPTOR_LENGTH +
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USB_AUDIO_STREAMING_ENDP_DESC_SIZE), /* Total length of data returned for this configuration. */
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USB_AUDIO_GENERATOR_INTERFACE_COUNT, /* Number of interfaces supported by this configuration */
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USB_AUDIO_GENERATOR_CONFIGURE_INDEX, /* Value to use as an argument to the
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SetConfiguration() request to select this configuration */
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0x00U, /* Index of string descriptor describing this configuration */
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(USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_D7_MASK) |
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(USB_DEVICE_CONFIG_SELF_POWER << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_SELF_POWERED_SHIFT) |
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(USB_DEVICE_CONFIG_REMOTE_WAKEUP << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_REMOTE_WAKEUP_SHIFT),
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/* Configuration characteristics
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D7: Reserved (set to one)
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D6: Self-powered
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D5: Remote Wakeup
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D4...0: Reserved (reset to zero)
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*/
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USB_DEVICE_MAX_POWER, /* Maximum power consumption of the USB
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* device from the bus in this specific
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* configuration when the device is fully
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* operational. Expressed in 2 mA units
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* (i.e., 50 = 100 mA).
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*/
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USB_DESCRIPTOR_LENGTH_INTERFACE, /* Size of this descriptor in bytes */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
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USB_AUDIO_CONTROL_INTERFACE_INDEX, /* Number of this interface. */
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USB_AUDIO_GENERATOR_CONTROL_INTERFACE_ALTERNATE_0, /* Value used to select this alternate setting
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for the interface identified in the prior field */
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0x01U, /* Number of endpoints used by this
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interface (excluding endpoint zero). */
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USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
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USB_SUBCLASS_AUDIOCONTROL, /* The interface implements the AUDIOCONTROL Subclass */
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USB_AUDIO_PROTOCOL, /* The interface doesn't use any class-specific protocols */
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0x00U, /* The device doesn't have a string descriptor describing this iInterface */
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/* Audio Class Specific type of INTERFACE Descriptor */
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USB_AUDIO_CONTROL_INTERFACE_HEADER_LENGTH, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_HEADER, /* HEADER descriptor subtype */
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0x00U, 0x01U, /* Audio Device compliant to the USB Audio specification version 1.00 */
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0x27, 0x00U, /* Total number of bytes returned for the class-specific AudioControl interface descriptor.
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Includes the combined length of this descriptor header and all Unit and Terminal
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descriptors. */
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0x01U, /* The number of AudioStreaming and MIDIStreaming interfaces in the Audio Interface Collection to
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which this AudioControl interface belongs */
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0x01U, /* The number of AudioStreaming and MIDIStreaming interfaces in the Audio Interface baNumber */
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/* Audio Class Specific type of Input Terminal*/
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USB_AUDIO_INPUT_TERMINAL_ONLY_DESC_SIZE, /* Size of the descriptor, in bytes */
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USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
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USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_INPUT_TERMINAL,
|
|
/* INPUT_TERMINAL descriptor subtype */
|
|
USB_AUDIO_RECORDER_CONTROL_INPUT_TERMINAL_ID, /* Constant uniquely identifying the Terminal within the audio
|
|
function. This value is used in all requests to address this Terminal. */
|
|
0x01U, 0x02, /* A generic microphone that does not fit under any of the other classifications. */
|
|
0x00U, /* This Input Terminal has no association */
|
|
0x01U, /* This Terminal's output audio channel cluster has 1 logical output channels */
|
|
0x00U, 0x00U, /* Spatial locations present in the cluster */
|
|
0x00U, /* Index of a string descriptor, describing the name of the first logical channel. */
|
|
0x00U, /* Index of a string descriptor, describing the Input Terminal. */
|
|
|
|
/* Audio Class Specific type of Feature Unit */
|
|
USB_AUDIO_FEATURE_UNIT_ONLY_DESC_SIZE, /* Size of the descriptor, in bytes */
|
|
USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
|
|
USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_FEATURE_UNIT, /* FEATURE_UNIT descriptor subtype */
|
|
0x02, /* Constant uniquely identifying the Unit within the audio function. This value is used in all
|
|
requests to address this Unit. */
|
|
USB_AUDIO_RECORDER_CONTROL_INPUT_TERMINAL_ID, /* ID of the Unit or Terminal to which this Feature Unit is connected.
|
|
*/
|
|
0x01U, /* Size in bytes of an element of the bmaControls() array: */
|
|
0x03, 0x00U, /* Master channel controls */
|
|
0x00U, /* Index of a string descriptor, describing this Feature Unit. */
|
|
|
|
/* Audio Class Specific type of Output Terminal */
|
|
USB_AUDIO_OUTPUT_TERMINAL_ONLY_DESC_SIZE, /* Size of the descriptor, in bytes */
|
|
USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
|
|
USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_OUTPUT_TERMINAL,
|
|
/* OUTPUT_TERMINAL descriptor subtype */
|
|
USB_AUDIO_RECORDER_CONTROL_OUTPUT_TERMINAL_ID, /* Constant uniquely identifying the Terminal within the audio
|
|
function*/
|
|
0x01U, 0x01U, /* A Terminal dealing with a signal carried over an endpoint in an AudioStreaming interface */
|
|
0x00U, /* This Output Terminal has no association */
|
|
USB_AUDIO_RECORDER_CONTROL_FEATURE_UNIT_ID, /* ID of the Unit or Terminal to which this Terminal is connected. */
|
|
0x00U, /* Index of a string descriptor, describing the Output Terminal. */
|
|
|
|
USB_DESCRIPTOR_LENGTH_AC_INTERRUPT_ENDPOINT, /* Size of this descriptor, in bytes: 9U */
|
|
USB_DESCRIPTOR_TYPE_ENDPOINT, /* ENDPOINT descriptor type */
|
|
USB_AUDIO_CONTROL_ENDPOINT | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
|
|
/* Endpoint address */
|
|
USB_ENDPOINT_INTERRUPT, /* Transfer type */
|
|
USB_SHORT_GET_LOW(FS_INTERRUPT_IN_PACKET_SIZE), USB_SHORT_GET_HIGH(FS_INTERRUPT_IN_PACKET_SIZE),
|
|
/* Max Packet Size */
|
|
FS_INTERRUPT_IN_INTERVAL, /* Interval */
|
|
0, 0,
|
|
|
|
/* Audio Class Specific INTERFACE Descriptor, alternative interface 0 */
|
|
USB_DESCRIPTOR_LENGTH_INTERFACE, /* Descriptor size is 9 bytes */
|
|
USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
|
|
USB_AUDIO_STREAM_INTERFACE_INDEX, /* The number of this interface is 1. */
|
|
USB_AUDIO_GENERATOR_STREAM_INTERFACE_ALTERNATE_0, /* The value used to select the alternate setting for this interface is 0 */
|
|
0x00U, /* The number of endpoints used by this interface is 0 (excluding endpoint zero) */
|
|
USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
|
|
USB_SUBCLASS_AUDIOSTREAM, /* The interface implements the AUDIOSTREAMING Subclass */
|
|
USB_AUDIO_PROTOCOL, /* The interface doesn't use any class-specific protocols */
|
|
0x00U, /* The device doesn't have a string descriptor describing this iInterface */
|
|
|
|
/* Audio Class Specific INTERFACE Descriptor, alternative interface 1 */
|
|
USB_DESCRIPTOR_LENGTH_INTERFACE, /* Descriptor size is 9 bytes */
|
|
USB_DESCRIPTOR_TYPE_INTERFACE, /* INTERFACE Descriptor Type */
|
|
USB_AUDIO_STREAM_INTERFACE_INDEX, /*The number of this interface is 1. */
|
|
USB_AUDIO_GENERATOR_STREAM_INTERFACE_ALTERNATE_1, /* The value used to select the alternate setting for this interface is 1 */
|
|
0x01U, /* The number of endpoints used by this interface is 1 (excluding endpoint zero) */
|
|
USB_AUDIO_CLASS, /* The interface implements the Audio Interface class */
|
|
USB_SUBCLASS_AUDIOSTREAM, /* The interface implements the AUDIOSTREAMING Subclass */
|
|
USB_AUDIO_PROTOCOL, /* The interface doesn't use any class-specific protocols */
|
|
0x00U, /* The device doesn't have a string descriptor describing this iInterface */
|
|
|
|
/* Audio Class Specific CS INTERFACE Descriptor*/
|
|
USB_AUDIO_STREAMING_IFACE_DESC_SIZE, /* Size of the descriptor, in bytes */
|
|
USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
|
|
USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_AS_GENERAL, /* AS_GENERAL descriptor subtype */
|
|
USB_AUDIO_RECORDER_CONTROL_OUTPUT_TERMINAL_ID, /* The Terminal ID of the Terminal to which the endpoint of this
|
|
interface is connected. */
|
|
0x00U, /* Delay introduced by the data path. Expressed in number of frames. */
|
|
0x02U, 0x00U, /* PCM8 */
|
|
|
|
/* Audio Class Specific type I format INTERFACE Descriptor */
|
|
USB_AUDIO_STREAMING_TYPE_I_DESC_SIZE, /* Size of the descriptor, in bytes */
|
|
USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */
|
|
USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_FORMAT_TYPE,
|
|
/* FORMAT_TYPE descriptor subtype */
|
|
USB_AUDIO_FORMAT_TYPE_I, /* FORMAT_TYPE_I */
|
|
0x01U, /* Indicates the number of physical channels in the audio data stream. */
|
|
#if defined(AUDIO_DATA_SOURCE_DMIC) && (AUDIO_DATA_SOURCE_DMIC > 0U)
|
|
0x02U, /* The number of bytes occupied by one audio subframe. Can be 1, 2, 3 or 4. */
|
|
0x10, /* The number of effectively used bits from the available bits in an audio subframe.*/
|
|
0x01U, /* Indicates how the sampling frequency can be programmed: */
|
|
0x80, 0x3E, 0x00U, /* Sampling frequency 1 in Hz for this isochronous data endpoint. */
|
|
#else
|
|
0x01U, /* The number of bytes occupied by one audio subframe. Can be 1, 2, 3 or 4. */
|
|
0x08, /* The number of effectively used bits from the available bits in an audio subframe.*/
|
|
0x01U, /* Indicates how the sampling frequency can be programmed: */
|
|
0x40, 0x1F, 0x00U, /* Sampling frequency 1 in Hz for this isochronous data endpoint. */
|
|
#endif
|
|
/* ENDPOINT Descriptor */
|
|
USB_ENDPOINT_AUDIO_DESCRIPTOR_LENGTH, /* Descriptor size is 9 bytes */
|
|
USB_DESCRIPTOR_TYPE_ENDPOINT, /* ENDPOINT Descriptor Type */
|
|
USB_AUDIO_STREAM_ENDPOINT | (USB_IN << 7), /* This is an IN endpoint with endpoint number 2 */
|
|
USB_ENDPOINT_ISOCHRONOUS, /* Types - Transfer: ISOCHRONOUS */
|
|
USB_SHORT_GET_LOW(FS_ISO_IN_ENDP_PACKET_SIZE),
|
|
USB_SHORT_GET_HIGH(FS_ISO_IN_ENDP_PACKET_SIZE), /* Maximum packet size for this endpoint is 8 Bytes. */
|
|
ISO_IN_ENDP_INTERVAL, /* The polling interval value is every 1 Frames. If Hi-Speed, every 1 uFrames */
|
|
0x00U, /* Refresh Rate 2**n ms where n = 0 */
|
|
0x00U, /* Synchronization Endpoint (if used) is endpoint 0 */
|
|
|
|
/* Audio Class Specific ENDPOINT Descriptor */
|
|
USB_AUDIO_STREAMING_ENDP_DESC_SIZE, /* Size of the descriptor, in bytes */
|
|
USB_AUDIO_STREAM_ENDPOINT_DESCRIPTOR, /* CS_ENDPOINT Descriptor Type */
|
|
USB_AUDIO_EP_GENERAL_DESCRIPTOR_SUBTYPE, /* AUDIO_EP_GENERAL descriptor subtype */
|
|
0x00U, /* Bit 0: Sampling Frequency 0
|
|
Bit 1: Pitch 0
|
|
Bit 7: MaxPacketsOnly 0 */
|
|
0x00U, /* Indicates the units used for the wLockDelay field: 0: Undefined */
|
|
0x00U, 0x00U, /* Indicates the time it takes this endpoint to reliably lock its internal clock recovery
|
|
circuitry */
|
|
#endif /* AUDIO_CLASS_2_0 */
|
|
};
|
|
|
|
/* Define string descriptor */
|
|
USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE)
|
|
uint8_t g_UsbDeviceString0[] = {
|
|
2U + 2U,
|
|
USB_DESCRIPTOR_TYPE_STRING,
|
|
0x09U,
|
|
0x04U,
|
|
};
|
|
|
|
USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE)
|
|
uint8_t g_UsbDeviceString1[] = {
|
|
2U + 2U * 18U, USB_DESCRIPTOR_TYPE_STRING,
|
|
'N', 0x00U,
|
|
'X', 0x00U,
|
|
'P', 0x00U,
|
|
' ', 0x00U,
|
|
'S', 0x00U,
|
|
'E', 0x00U,
|
|
'M', 0x00U,
|
|
'I', 0x00U,
|
|
'C', 0x00U,
|
|
'O', 0x00U,
|
|
'N', 0x00U,
|
|
'D', 0x00U,
|
|
'U', 0x00U,
|
|
'C', 0x00U,
|
|
'T', 0x00U,
|
|
'O', 0x00U,
|
|
'R', 0x00U,
|
|
'S', 0x00U,
|
|
};
|
|
|
|
USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE)
|
|
uint8_t g_UsbDeviceString2[] = {
|
|
2U + 2U * 14U, USB_DESCRIPTOR_TYPE_STRING,
|
|
'U', 0x00U,
|
|
'S', 0x00U,
|
|
'B', 0x00U,
|
|
' ', 0x00U,
|
|
'A', 0x00U,
|
|
'U', 0x00U,
|
|
'D', 0x00U,
|
|
'I', 0x00U,
|
|
'O', 0x00U,
|
|
' ', 0x00U,
|
|
'D', 0x00U,
|
|
'E', 0x00U,
|
|
'M', 0x00U,
|
|
'O', 0x00U,
|
|
};
|
|
|
|
uint32_t g_UsbDeviceStringDescriptorLength[USB_DEVICE_STRING_COUNT] = {
|
|
sizeof(g_UsbDeviceString0),
|
|
sizeof(g_UsbDeviceString1),
|
|
sizeof(g_UsbDeviceString2),
|
|
};
|
|
|
|
uint8_t *g_UsbDeviceStringDescriptorArray[USB_DEVICE_STRING_COUNT] = {
|
|
g_UsbDeviceString0,
|
|
g_UsbDeviceString1,
|
|
g_UsbDeviceString2,
|
|
};
|
|
|
|
usb_language_t g_UsbDeviceLanguage[USB_DEVICE_LANGUAGE_COUNT] = {{
|
|
g_UsbDeviceStringDescriptorArray,
|
|
g_UsbDeviceStringDescriptorLength,
|
|
(uint16_t)0x0409U,
|
|
}};
|
|
|
|
usb_language_list_t g_UsbDeviceLanguageList = {
|
|
g_UsbDeviceString0,
|
|
sizeof(g_UsbDeviceString0),
|
|
g_UsbDeviceLanguage,
|
|
USB_DEVICE_LANGUAGE_COUNT,
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* Code
|
|
******************************************************************************/
|
|
/*!
|
|
* @brief Get the descriptor.
|
|
*
|
|
* The function is used to get the descriptor, including the device descriptor, configuration descriptor, and string
|
|
* descriptor, etc.
|
|
*
|
|
* @param handle The device handle.
|
|
* @param setup The setup packet buffer address.
|
|
* @param length It is an OUT parameter, return the data length need to be sent to host.
|
|
* @param buffer It is an OUT parameter, return the data buffer address.
|
|
*
|
|
* @return A USB error code or kStatus_USB_Success.
|
|
*/
|
|
usb_status_t USB_DeviceGetDescriptor(usb_device_handle handle,
|
|
usb_setup_struct_t *setup,
|
|
uint32_t *length,
|
|
uint8_t **buffer)
|
|
{
|
|
uint8_t descriptorType = (uint8_t)((setup->wValue & 0xFF00U) >> 8U);
|
|
uint8_t descriptorIndex = (uint8_t)((setup->wValue & 0x00FFU));
|
|
usb_status_t ret = kStatus_USB_Success;
|
|
if (USB_REQUEST_STANDARD_GET_DESCRIPTOR != setup->bRequest)
|
|
{
|
|
return kStatus_USB_InvalidRequest;
|
|
}
|
|
switch (descriptorType)
|
|
{
|
|
case USB_DESCRIPTOR_TYPE_STRING:
|
|
{
|
|
/* Get string descriptor */
|
|
if (0U == descriptorIndex)
|
|
{
|
|
*buffer = (uint8_t *)g_UsbDeviceLanguageList.languageString;
|
|
*length = g_UsbDeviceLanguageList.stringLength;
|
|
}
|
|
else
|
|
{
|
|
uint8_t languageId = 0U;
|
|
uint8_t languageIndex = USB_DEVICE_STRING_COUNT;
|
|
|
|
for (; languageId < USB_DEVICE_LANGUAGE_COUNT; languageId++)
|
|
{
|
|
if (setup->wIndex == g_UsbDeviceLanguageList.languageList[languageId].languageId)
|
|
{
|
|
if (descriptorIndex < USB_DEVICE_STRING_COUNT)
|
|
{
|
|
languageIndex = descriptorIndex;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (USB_DEVICE_STRING_COUNT == languageIndex)
|
|
{
|
|
return kStatus_USB_InvalidRequest;
|
|
}
|
|
*buffer = (uint8_t *)g_UsbDeviceLanguageList.languageList[languageId].string[languageIndex];
|
|
*length = g_UsbDeviceLanguageList.languageList[languageId].length[languageIndex];
|
|
}
|
|
}
|
|
break;
|
|
case USB_DESCRIPTOR_TYPE_DEVICE:
|
|
{
|
|
/* Get device descriptor */
|
|
*buffer = g_UsbDeviceDescriptor;
|
|
*length = USB_DESCRIPTOR_LENGTH_DEVICE;
|
|
}
|
|
break;
|
|
case USB_DESCRIPTOR_TYPE_CONFIGURE:
|
|
{
|
|
/* Get configuration descriptor */
|
|
*buffer = g_UsbDeviceConfigurationDescriptor;
|
|
*length = USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL;
|
|
}
|
|
break;
|
|
default:
|
|
ret = kStatus_USB_InvalidRequest;
|
|
break;
|
|
} /* End Switch */
|
|
return ret;
|
|
}
|
|
|
|
/*!
|
|
* @brief Set the device configuration.
|
|
*
|
|
* The function is used to set the device configuration.
|
|
*
|
|
* @param handle The device handle.
|
|
* @param configure The configuration value.
|
|
*
|
|
* @return A USB error code or kStatus_USB_Success.
|
|
*/
|
|
usb_status_t USB_DeviceSetConfigure(usb_device_handle handle, uint8_t configure)
|
|
{
|
|
if (!configure)
|
|
{
|
|
return kStatus_USB_Error;
|
|
}
|
|
g_UsbDeviceCurrentConfigure = configure;
|
|
return USB_DeviceCallback(handle, kUSB_DeviceEventSetConfiguration, &configure);
|
|
}
|
|
|
|
/*!
|
|
* @brief Get the device configuration.
|
|
*
|
|
* The function is used to get the device configuration.
|
|
*
|
|
* @param handle The device handle.
|
|
* @param configure It is an OUT parameter, save the current configuration value.
|
|
*
|
|
* @return A USB error code or kStatus_USB_Success.
|
|
*/
|
|
usb_status_t USB_DeviceGetConfigure(usb_device_handle handle, uint8_t *configure)
|
|
{
|
|
*configure = g_UsbDeviceCurrentConfigure;
|
|
return kStatus_USB_Success;
|
|
}
|
|
|
|
/*!
|
|
* @brief Set an interface alternate setting.
|
|
*
|
|
* The function is used to set an interface alternate setting.
|
|
*
|
|
* @param handle The device handle.
|
|
* @param interface The interface index.
|
|
* @param alternateSetting The new alternate setting value.
|
|
*
|
|
* @return A USB error code or kStatus_USB_Success.
|
|
*/
|
|
usb_status_t USB_DeviceSetInterface(usb_device_handle handle, uint8_t interface, uint8_t alternateSetting)
|
|
{
|
|
if (interface < USB_AUDIO_GENERATOR_INTERFACE_COUNT)
|
|
{
|
|
g_UsbDeviceInterface[interface] = alternateSetting;
|
|
return USB_DeviceCallback(handle, kUSB_DeviceEventSetInterface, &interface);
|
|
}
|
|
return kStatus_USB_InvalidRequest;
|
|
}
|
|
|
|
/*!
|
|
* @brief Get an interface alternate setting.
|
|
*
|
|
* The function is used to get an interface alternate setting.
|
|
*
|
|
* @param handle The device handle.
|
|
* @param interface The interface index.
|
|
* @param alternateSetting It is an OUT parameter, save the new alternate setting value of the interface.
|
|
*
|
|
* @return A USB error code or kStatus_USB_Success.
|
|
*/
|
|
usb_status_t USB_DeviceGetInterface(usb_device_handle handle, uint8_t interface, uint8_t *alternateSetting)
|
|
{
|
|
if (interface < USB_AUDIO_GENERATOR_INTERFACE_COUNT)
|
|
{
|
|
*alternateSetting = g_UsbDeviceInterface[interface];
|
|
return kStatus_USB_Success;
|
|
}
|
|
return kStatus_USB_InvalidRequest;
|
|
}
|
|
|
|
/* Due to the difference of HS and FS descriptors, the device descriptors and configurations need to be updated to match
|
|
* current speed.
|
|
* As the default, the device descriptors and configurations are configured by using FS parameters for both EHCI and
|
|
* KHCI.
|
|
* When the EHCI is enabled, the application needs to call this function to update device by using current speed.
|
|
* The updated information includes endpoint max packet size, endpoint interval, etc. */
|
|
usb_status_t USB_DeviceSetSpeed(uint8_t speed)
|
|
{
|
|
usb_descriptor_union_t *descriptorHead;
|
|
usb_descriptor_union_t *descriptorTail;
|
|
|
|
descriptorHead = (usb_descriptor_union_t *)&g_UsbDeviceConfigurationDescriptor[0];
|
|
descriptorTail =
|
|
(usb_descriptor_union_t *)(&g_UsbDeviceConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL - 1U]);
|
|
|
|
while (descriptorHead < descriptorTail)
|
|
{
|
|
if (descriptorHead->common.bDescriptorType == USB_DESCRIPTOR_TYPE_ENDPOINT)
|
|
{
|
|
if (USB_SPEED_HIGH == speed)
|
|
{
|
|
if (USB_AUDIO_STREAM_ENDPOINT == (descriptorHead->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))
|
|
{
|
|
descriptorHead->endpoint.bInterval = HS_ISO_IN_ENDP_INTERVAL;
|
|
USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(HS_ISO_IN_ENDP_PACKET_SIZE,
|
|
descriptorHead->endpoint.wMaxPacketSize);
|
|
}
|
|
else
|
|
{
|
|
descriptorHead->endpoint.bInterval = HS_INTERRUPT_IN_INTERVAL;
|
|
USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(HS_INTERRUPT_IN_PACKET_SIZE,
|
|
descriptorHead->endpoint.wMaxPacketSize);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (USB_AUDIO_STREAM_ENDPOINT == (descriptorHead->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))
|
|
{
|
|
descriptorHead->endpoint.bInterval = FS_ISO_IN_ENDP_INTERVAL;
|
|
USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(FS_ISO_IN_ENDP_PACKET_SIZE,
|
|
descriptorHead->endpoint.wMaxPacketSize);
|
|
}
|
|
else
|
|
{
|
|
descriptorHead->endpoint.bInterval = FS_INTERRUPT_IN_INTERVAL;
|
|
USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(FS_INTERRUPT_IN_PACKET_SIZE,
|
|
descriptorHead->endpoint.wMaxPacketSize);
|
|
}
|
|
}
|
|
}
|
|
descriptorHead = (usb_descriptor_union_t *)((uint8_t *)descriptorHead + descriptorHead->common.bLength);
|
|
}
|
|
|
|
return kStatus_USB_Success;
|
|
}
|