usb.h

嵌入式系统中一些外围设备驱动示例程序集

/****************************************Copyright (c)**************************************************
**                               广州周立功单片机发展有限公司
**                                     研    究    所
**                                 http://www.zlgmcu.com
**--------------当前版本修订------------------------------------------------------------------------------
** 修改人: 刘英斌
** 日　期:2003-03-13
** 描　述:ISP1581 V1.0
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/

//#define	ENDPT_NUMBER			8
//#define	INTERFACE_NO			2

#define	ENDPT_NUMBER			4
#define	INTERFACE_NO			1


#define SWAP(x)   				((((x) & 0xFF) << 8) | (((x) >> 8) & 0xFF))

#define	CONFIG_LENGTH			sizeof(CONFIGURATION_DESCRIPTOR) + \
								(INTERFACE_NO * sizeof(INTERFACE_DESCRIPTOR)) + \
								(ENDPT_NUMBER * sizeof(ENDPOINT_DESCRIPTOR))
								
typedef struct DEVICE_DESCRIPTOR 
{

    UC bLength;
    UC bDescriptorType;
    UI bcdUSB;
    UC bDeviceClass;
    UC bDeviceSubClass;
    UC bDeviceProtocol;
    UC bMaxPacketSize0;
    UI idVendor;
    UI idProduct;
    UI bcdDevice;
    UC iManufacturer;
    UC iProduct;
    UC iSerialNumber;
    UC bNumConfigurations;

} DEVICE_DESCRIPTOR;


typedef struct HS_DEVICE_QUALIFIER
{

	UC	bLength;			//length of HS Device Descriptor
	UC	bQualifier; 		//HS Device Qualifier Type
	UI	wVersion;			// USB 2.0 version
	UC	bDeviceClass;		//Device class
	UC	bDeviceSubClasss;	//Device SubClass
	UC	bProtocol;			//Device Protocol Code
	UC	MaxPktSize;			//Maximum Packet SIze for other speed
	UC	bOther_Config;		//Number of Other speed configurations
	UC	Reserved;			//Reserved

}HS_DEVICE_QUALIFIER;


typedef struct CONFIGURATION_DESCRIPTOR 
{
    UC bLength;
    UC bDescriptorType;
    UI wTotalLength;
    UC bNumInterfaces;
    UC bConfigurationValue;
    UC iConfiguration;
    UC bmAttributes;
    UC MaxPower;

} CONFIGURATION_DESCRIPTOR;

typedef struct	OTHER_SPEED_CONFIG_DESCRIPTOR
{

	UC	bLength;					//length of other speed configuration descriptor
	UC	bDescriptorType;			//Other speed configuration Type
	UI	bTotalLength;				//Total length
	UC	No_Interface;				//No of interface supported
	UC	Configuration_Value;		//Configuration Value
	UC	String_Index_Descriptor;	//Index of string descriptor
	UC	Config_Characteristic;		//Configurations Characteristic
	UC	Max_Power;					//Maximun Power

}OTHER_SPEED_CONFIG_DESCRIPTOR;


typedef struct INTERFACE_DESCRIPTOR 
{
    UC bLength;
    UC bDescriptorType;
    UC bInterfaceNumber;
    UC bAlternateSetting;
    UC bNumEndpoints;
    UC bInterfaceClass;
    UC bInterfaceSubClass;
    UC bInterfaceProtocol;
    UC iInterface;

} INTERFACE_DESCRIPTOR;


typedef struct ENDPOINT_DESCRIPTOR 
{
    UC bLength;
    UC bDescriptorType;
    UC bEndpointAddress;
    UC bmAttributes;
    UI wMaxPacketSize;
    UC bInterval;

} ENDPOINT_DESCRIPTOR;



typedef struct STRING_ID 
{
    UC bLength;
    UC bDescriptorType;
    UC bString[2];

} STRING_ID;


typedef struct STRING_DESCRIPTOR 
{
    UC bLength;
    UC bDescriptorType;
    UC bString[30];

} STRING_DESCRIPTOR;