?? usb_desc.c
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/*******************************************************************************
* File Name : usb_desc.c
*功能描述： ：硬件描述符等配置
*該程序用于USB音頻設備-揚聲器設備描述符，配置描述符，接口描述符。描述符是一個數據
*結構，使PC主機了解設備的格式化信息，每一個描述符可能包括整個設備的信息，或設備的
*一個組件。在設備插入主機時，按照USB規范，設備必需對標準的USB描述符作出響應.
*******************************************************************************/
/* 頭文件 ------------------------------------------------------------------*/
#include "usb_lib.h"
#include "usb_desc.h"
/* USB標準設備描述符 */
const u8 Speaker_DeviceDescriptor[] =
{
SPEAKER_SIZ_DEVICE_DESC, /* bLength */
USB_DEVICE_DESCRIPTOR_TYPE, /* bDescriptorType */
0x00, /* 1.10 */ /* bcdUSB */
0x02,
0x00, /* bDeviceClass */
0x00, /* bDeviceSubClass */
0x00, /* bDeviceProtocol */
0x40, /* bMaxPacketSize 40 */
0x83, /* idVendor */
0x04,
0x30, /* idProduct = 0x5730*/
0x57,
0x00, /* 1.00 */ /* bcdDevice */
0x01,
1, /* iManufacturer */
2, /* iProduct */
3, /* iSerialNumber */
0x01 /* bNumConfigurations */
};
/*******************************************************************************
* USB配置描述符
* 所有描述符(配置描述符, 接口描述符, 端點描述符, 類描述符, 字符串描述符等
******************************************************************************/
const u8 Speaker_ConfigDescriptor[] =
{
/* Configuration 1 */
0x09, /* bLength */
USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType */
0x6D, /* wTotalLength 110 bytes*/
0x00,
0x02, /* bNumInterfaces */
0x01, /* bConfigurationValue */
0x00, /* iConfiguration */
0x80, /* bmAttributes BUS Powred*/
0x32, /* bMaxPower = 100 mA*/
/* 09 byte*/
/* USB Speaker Standard interface descriptor */
SPEAKER_SIZ_INTERFACE_DESC_SIZE, /* bLength */
USB_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
0x00, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x00, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOCONTROL, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Speaker Class-specific AC Interface Descriptor */
SPEAKER_SIZ_INTERFACE_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_HEADER, /* bDescriptorSubtype */
0x00, /* 1.00 */ /* bcdADC */
0x01,
0x27, /* wTotalLength = 39*/
0x00,
0x01, /* bInCollection */
0x01, /* baInterfaceNr */
/* 09 byte*/
/* USB Speaker Input Terminal Descriptor */
AUDIO_INPUT_TERMINAL_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_INPUT_TERMINAL, /* bDescriptorSubtype */
0x01, /* bTerminalID */
0x01, /* wTerminalType AUDIO_TERMINAL_USB_STREAMING 0x0101 */
0x01,
0x00, /* bAssocTerminal */
0x01, /* bNrChannels */
0x00, /* wChannelConfig 0x0000 Mono */
0x00,
0x00, /* iChannelNames */
0x00, /* iTerminal */
/* 12 byte*/
/* USB Speaker Audio Feature Unit Descriptor */
0x09, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_FEATURE_UNIT, /* bDescriptorSubtype */
0x02, /* bUnitID */
0x01, /* bSourceID */
0x01, /* bControlSize */
AUDIO_CONTROL_MUTE, /* bmaControls(0) */
0x00, /* bmaControls(1) */
0x00, /* iTerminal */
/* 09 byte*/
/*USB Speaker Output Terminal Descriptor */
0x09, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_CONTROL_OUTPUT_TERMINAL, /* bDescriptorSubtype */
0x03, /* bTerminalID */
0x01, /* wTerminalType 0x0301*/
0x03,
0x00, /* bAssocTerminal */
0x02, /* bSourceID */
0x00, /* iTerminal */
/* 09 byte*/
/* USB Speaker Standard AS Interface Descriptor - Audio Streaming Zero Bandwith */
/* Interface 1, Alternate Setting 0 */
SPEAKER_SIZ_INTERFACE_DESC_SIZE, /* bLength */
USB_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
0x01, /* bInterfaceNumber */
0x00, /* bAlternateSetting */
0x00, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Speaker Standard AS Interface Descriptor - Audio Streaming Operational */
/* Interface 1, Alternate Setting 1 */
SPEAKER_SIZ_INTERFACE_DESC_SIZE, /* bLength */
USB_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
0x01, /* bInterfaceNumber */
0x01, /* bAlternateSetting */
0x01, /* bNumEndpoints */
USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */
AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */
AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */
0x00, /* iInterface */
/* 09 byte*/
/* USB Speaker Audio Streaming Interface Descriptor */
AUDIO_STREAMING_INTERFACE_DESC_SIZE, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_STREAMING_GENERAL, /* bDescriptorSubtype */
0x01, /* bTerminalLink */
0x01, /* bDelay */
0x02, /* wFormatTag AUDIO_FORMAT_PCM8 0x0002*/
0x00,
/* 07 byte*/
/* USB Speaker Audio Type I Format Interface Descriptor */
0x0B, /* bLength */
AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_STREAMING_FORMAT_TYPE, /* bDescriptorSubtype */
AUDIO_FORMAT_TYPE_I, /* bFormatType */
0x01, /* bNrChannels */
0x01, /* bSubFrameSize */
8, /* bBitResolution */
0x01, /* bSamFreqType */
0xF0, /* tSamFreq 22000 = 0x55F0 */
0x55,
0x00,
/* 11 byte*/
/* Endpoint 1 - Standard Descriptor */
AUDIO_STANDARD_ENDPOINT_DESC_SIZE, /* bLength */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */
0x01, /* bEndpointAddress 1 out endpoint*/
USB_ENDPOINT_TYPE_ISOCHRONOUS, /* bmAttributes */
0x16, /* wMaxPacketSize 22 bytes*/
0x00,
0x01, /* bInterval */
0x00, /* bRefresh */
0x00, /* bSynchAddress */
/* 09 byte*/
/* Endpoint - Audio Streaming Descriptor*/
AUDIO_STREAMING_ENDPOINT_DESC_SIZE, /* bLength */
AUDIO_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */
AUDIO_ENDPOINT_GENERAL, /* bDescriptor */
0x00, /* bmAttributes */
0x00, /* bLockDelayUnits */
0x00, /* wLockDelay */
0x00,
/* 07 byte*/
};
/* USB String Descriptor (optional) */
const u8 Speaker_StringLangID[SPEAKER_SIZ_STRING_LANGID] =
{
0x04,
0x03,
0x09,
0x04
}
; /* LangID = 0x0409: U.S. English */
const u8 Speaker_StringVendor[SPEAKER_SIZ_STRING_VENDOR] =
{
SPEAKER_SIZ_STRING_VENDOR, /* Size of manufaturer string */
USB_STRING_DESCRIPTOR_TYPE, /* bDescriptorType*/
/* Manufacturer: "STMicroelectronics" */
'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
'c', 0, 's', 0
};
const u8 Speaker_StringProduct[SPEAKER_SIZ_STRING_PRODUCT] =
{
SPEAKER_SIZ_STRING_PRODUCT, /* bLength */
USB_STRING_DESCRIPTOR_TYPE, /* bDescriptorType */
'S', 0, 'T', 0, 'M', 0, '3', 0, '2', 0, ' ', 0,
'S', 0, 'p', 0, 'e', 0, 'a', 0, 'k', 0, 'e', 0, 'r', 0
};
const u8 Speaker_StringSerial[SPEAKER_SIZ_STRING_SERIAL] =
{
SPEAKER_SIZ_STRING_SERIAL, /* bLength */
USB_STRING_DESCRIPTOR_TYPE, /* bDescriptorType */
'D', 0, 'e', 0, 'm', 0, 'o', 0, ' ', 0, '1', 0, '.', 0, '0', 0, '0', 0, '0', 0,
'0', 0, '0', 0,
};
/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/
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