usbddriver.h

Atmel的AT91SAM7x256芯片的usb存储的源程序

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 *         ATMEL Microcontroller Software Support  -  ROUSSET  -
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/*
    Title: USBDDriver

    About: Purpose
        USB Device Driver class definition.

    About: Usage
        1 - Instanciate a USBDDriver object and initialize it using
            <USBDDriver_Initialize>.
        2 - When a USB SETUP request is received, forward it to the standard
            driver using <USBDDriver_RequestHandler>.
*/

#ifndef USBDDRIVER_H
#define USBDDRIVER_H

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#include "USBDDriverDescriptors.h"
#include <usb/common/core/USBGenericRequest.h>

//------------------------------------------------------------------------------
//         Types
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// USB device driver structure, holding a list of descriptors identifying
/// the device as well as the driver current state.
//------------------------------------------------------------------------------
typedef struct {

    /// List of descriptors used by the device.
    const USBDDriverDescriptors *pDescriptors;
    /// Current setting for each interface.
    unsigned char *pInterfaces;
    /// Current configuration number (0 -> device is not configured).
    unsigned char cfgnum;
    /// Indicates if remote wake up has been enabled by the host.
    unsigned char isRemoteWakeUpEnabled;

} USBDDriver;

//------------------------------------------------------------------------------
//         Exported functions
//------------------------------------------------------------------------------

extern void USBDDriver_Initialize(
    USBDDriver *pDriver,
    const USBDDriverDescriptors *pDescriptors,
    unsigned char *pInterfaces);

extern void USBDDriver_RequestHandler(
    USBDDriver *pDriver,
    const USBGenericRequest *pRequest);

extern unsigned char USBDDriver_IsRemoteWakeUpEnabled(const USBDDriver *pDriver);

#endif //#ifndef USBDDRIVER_H