mss.c

本电子词典是名人928的学习机代码,主要是电子学习机AP,其他还没有传

// MassStorage.cpp: implementation of the MassStorage class.
//
//////////////////////////////////////////////////////////////////////

#define __OS_SOURCE_FILE__

#ifndef _WIN32

#include "Kernel.h"
#include "HAL.h"
#include "SCL.h"
#include "MSS.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

volatile UINT16 g_uExitMSS;

NU_DRIVER	*pndUSB;

NU_DRIVER *DriverFindFromName(char *pDrvName)
{
    NU_DRIVER  *pNdTemp[16];
    UINT32      dwDrivers, i;
    
    dwDrivers = NU_Driver_Pointers(pNdTemp, 16);
    for( i = 0; i < dwDrivers; i++ )
    {
        if( strncmp(pDrvName, pNdTemp[i]->nu_driver_name, NU_MAX_NAME) == 0 )
            return pNdTemp[i];
    }
    return (NU_DRIVER*)NULL;
}


UINT MSS_Init(void)
{
	UINT uRet;
	NU_DRIVER_REQUEST ndrTemp;

    //初始化USB驱动
	g_uExitMSS = 0;

    pndUSB =(NU_DRIVER	*)DriverFindFromName(DRV_NAME_USB);
    if(NULL == pndUSB)
        return -1;
    

	if (0 != (uRet = HAL_Init()))
		return uRet;
		
	uRet = SCSI_Init();
	if(0 == uRet)
	{
		ndrTemp.nu_function = NU_STATUS;
		ndrTemp.nu_supplemental = USB_IOCTL_CONNECT; 
		ndrTemp.nu_supplemental_ptr = (void*)(UINT32)USB_INIT_MASSSTORAGE; 

#ifdef	SYS_UPDATE
		USBDriver_Func(NULL, &ndrTemp);
		uRet = ndrTemp.nu_status;
#else
		uRet = NU_Request_Driver(pndUSB, &ndrTemp);			
#endif
	}
	
	return uRet;
}

UINT MSS_Stop(void)
{
	NU_DRIVER_REQUEST   ndrTemp;
	UINT uKey = 0;

	//stop USB
	ndrTemp.nu_function = NU_STATUS;
	ndrTemp.nu_supplemental = USB_IOCTL_DISCONNECT; 

#ifdef SYS_UPDATE
    USBDriver_Func(NULL, &ndrTemp);
    uKey = ndrTemp.nu_status;
#else
	FlashClose(NULL);
	SCSI_UnInit();
	uKey = NU_Request_Driver(pndUSB, &ndrTemp);
#endif

	return uKey;
}
#endif