usb_desc.c

ARM_CORTEX-M3应用实例开发详解光盘

/*******************************************************************************
* File Name          : usb_desc.c
*功能描述：			 ：硬件描述符等配置
*该程序用于USB音频设备-扬声器设备描述符，配置描述符，接口描述符。描述符是一个数据
*结构，使PC主机了解设备的格式化信息，每一个描述符可能包括整个设备的信息，或设备的
*一个组件。在设备插入主机时，按照USB规范，设备必需对标准的USB描述符作出响应.
*******************************************************************************/

/* 头文件 ------------------------------------------------------------------*/
#include "usb_lib.h"
#include "usb_desc.h"

/* USB标准设备描述符 */
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, 端点描述符, 类描述符, 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****/