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源代码在线查看： usb.h
/****************************************************************
NAME: usb.h
DESC: definitions(USB data structure) for USB setup operation.
Because It's h/w independent file, it may be used without any change in future.
Reuse the source of S3C2400X u24xmon
HISTORY:
Apr.07.2000:purnnamu: first release.
****************************************************************/
#ifndef __USB_H__
#define __USB_H__
//************************
// Endpoint 0
//************************
// Standard bmRequestTyje (Direction)
#define HOST_TO_DEVICE (0x00)
#define DEVICE_TO_HOST (0x80)
// Standard bmRequestType (Type)
#define STANDARD_TYPE (0x00)
#define CLASS_TYPE (0x20)
#define VENDOR_TYPE (0x40)
#define RESERVED_TYPE (0x60)
// Standard bmRequestType (Recipient)
#define DEVICE_RECIPIENT (0)
#define INTERFACE_RECIPIENT (1)
#define ENDPOINT_RECIPIENT (2)
#define OTHER_RECIPIENT (3)
// Feature Selectors
#define DEVICE_REMOTE_WAKEUP (1)
#define EP_STALL (0)
// Standard Request Codes
#define GET_STATUS (0)
#define CLEAR_FEATURE (1)
#define SET_FEATURE (3)
#define SET_ADDRESS (5)
#define GET_DESCRIPTOR (6)
#define SET_DESCRIPTOR (7)
#define GET_CONFIGURATION (8)
#define SET_CONFIGURATION (9)
#define GET_INTERFACE (10)
#define SET_INTERFACE (11)
#define SYNCH_FRAME (12)
// Class-specific Request Codes
#define GET_DEVICE_ID (0)
#define GET_PORT_STATUS (1)
#define SOFT_RESET (2)
// Descriptor Types
#define DEVICE_TYPE (1)
#define CONFIGURATION_TYPE (2)
#define STRING_TYPE (3)
#define INTERFACE_TYPE (4)
#define ENDPOINT_TYPE (5)
//configuration descriptor: bmAttributes
#define CONF_ATTR_DEFAULT (0x80) //Spec 1.0 it was BUSPOWERED bit.
#define CONF_ATTR_REMOTE_WAKEUP (0x20)
#define CONF_ATTR_SELFPOWERED (0x40)
//endpoint descriptor
#define EP_ADDR_IN (0x80)
#define EP_ADDR_OUT (0x00)
#define EP_ATTR_CONTROL (0x0)
#define EP_ATTR_ISOCHRONOUS (0x1)
#define EP_ATTR_BULK (0x2)
#define EP_ATTR_INTERRUPT (0x3)
//string descriptor
#define LANGID_US_L (0x09)
#define LANGID_US_H (0x04)
struct USB_SETUP_DATA{
U8 bmRequestType;
U8 bRequest;
U8 bValueL;
U8 bValueH;
U8 bIndexL;
U8 bIndexH;
U8 bLengthL;
U8 bLengthH;
};
struct USB_DEVICE_DESCRIPTOR{
U8 bLength;
U8 bDescriptorType;
U8 bcdUSBL;
U8 bcdUSBH;
U8 bDeviceClass;
U8 bDeviceSubClass;
U8 bDeviceProtocol;
U8 bMaxPacketSize0;
U8 idVendorL;
U8 idVendorH;
U8 idProductL;
U8 idProductH;
U8 bcdDeviceL;
U8 bcdDeviceH;
U8 iManufacturer;
U8 iProduct;
U8 iSerialNumber;
U8 bNumConfigurations;
};
struct USB_CONFIGURATION_DESCRIPTOR{
U8 bLength;
U8 bDescriptorType;
U8 wTotalLengthL;
U8 wTotalLengthH;
U8 bNumInterfaces;
U8 bConfigurationValue;
U8 iConfiguration;
U8 bmAttributes;
U8 maxPower;
};
struct USB_INTERFACE_DESCRIPTOR{
U8 bLength;
U8 bDescriptorType;
U8 bInterfaceNumber;
U8 bAlternateSetting;
U8 bNumEndpoints;
U8 bInterfaceClass;
U8 bInterfaceSubClass;
U8 bInterfaceProtocol;
U8 iInterface;
};
struct USB_ENDPOINT_DESCRIPTOR{
U8 bLength;
U8 bDescriptorType;
U8 bEndpointAddress;
U8 bmAttributes;
U8 wMaxPacketSizeL;
U8 wMaxPacketSizeH;
U8 bInterval;
};
#endif /*__USB_H__*/
