凌阳MP3 spSPCA755yuanma

				/*++
				
				Copyright (c) 2001 Sunplus Technology Co., Ltd.
				
				Module Name:
				
				        storage.c
				
				Abstract:
				
				        Module related to general storage media
				
				Environment:
				
				        Keil C51 Compiler
				
				Revision History:
				
				        08/28/2001      Chi-Yeh Tsai    created
				
				--*/
				
				// WWW3, whole file
				
				//=============================================================================
				//Header file
				//=============================================================================
				// WWW1 start
				#include "general.h"
				#include "storage.h"
				#include "main.h"
				#include "setmode.h"
				#include "cardlink.h"
				
				#if ((USBMSDC_OPTION == 1) || (USBMSDC_OPTION == 2))
				#include "scsistr.h"
				#endif
				
				// WWW1 end
				
				//=============================================================================
				//Symbol
				//=============================================================================
				//-----------------------------------------------------------------------------
				//Constant
				//-----------------------------------------------------------------------------
				
				//-----------------------------------------------------------------------------
				//Variable
				//-----------------------------------------------------------------------------
				
				//=============================================================================
				//Program
				//=============================================================================
				//-----------------------------------------------------------------------------
				//STORAGE_Initialize
				//-----------------------------------------------------------------------------
				UCHAR STORAGE_Initialize(UCHAR doDOSInitial) USING_0
				/*++
				
				Routine Description:
				
				        general routine to initialize storage media
				
				Arguments:
				
				        none
				
				Return Value:
				
				        none
				
				--*/
				{
				        UCHAR sts = TRUE;
				
				//		DbgPrint("STORAGE INITIAL :: G_ucStorageType=%bx\n",G_ucStorageType);
				
				        if (G_ucStorageType == 0xff)    //first time initialization
						{
				//			DbgPrint(" Initial Storage Detect #1 .... \n");	
				                sts = STORAGE_Detect();
				//			DbgPrint(" Initial Storage Detect #2 .... \n");	
						}
				//        switch (G_ucStorageType)
				//        {
				//#if (CARD_OPTION == 1)
				//		default:
							if (sts)
				               {
				//					DbgPrint("Chamber sts before Card Initial=%bx\n",sts);
				               		sts = M_Card_Initialize(doDOSInitial);
				//					DbgPrint("Chamber sts after Card Initial=%bx\n",sts);
				               }
				//                        break;
				//#endif
				                    
				//        }
				        return sts;
				}
				
				//-----------------------------------------------------------------------------
				//STORAGE_Detect
				//-----------------------------------------------------------------------------
				UCHAR STORAGE_Detect(void) USING_0
				/*++
				
				Routine Description:
				
				        detect which storage media exists
				
				Arguments:
				
				        none
				
				Return Value:
				
				        none
				
				--*/
				{
				        UCHAR status = FALSE;
				
				        G_ucStorageType = K_MEDIA_None;
				
					#if ( CARD_OPTION ) 
				//DbgPrint(" Storage Detect  #1 .... \n");	
					status = M_Card_Detect();
				//DbgPrint(" Storage Detect #2 .... \n");	
					if ( status == FALSE )
					{
						// WWWW start
						G_Card_Type = K_MEDIA_BUILT_IN; // WWW2
				//DbgPrint(" Storage Detect #3 .... \n");	
						status = M_Card_Detect();
				//DbgPrint(" Storage Detect #4 .... \n");	
						if ( status == FALSE )
							G_ucStorageType = K_MEDIA_None;
						else
							G_ucStorageType = G_Card_Type;
						// WWWW end
					}
					else
						G_ucStorageType = G_Card_Type;
					#endif
					
					return status;
					
				}
				
				//-----------------------------------------------------------------------------
				//STORAGE_Format
				//-----------------------------------------------------------------------------
				//patch3.2@ada@0401 For Date & Time Update
				//patch3.2@ada@0401 For Multi-Frame Play Back
				UCHAR STORAGE_Format(UCHAR eraseCard) USING_0
				/*++
				
				Routine Description:
				
				        format media currently selected
				
				Arguments:
				
				        none
				
				Return Value:
				
				        none
				
				--*/
				{
				        UCHAR    sts = TRUE;
				
				/*        switch (G_ucStorageType)
				        {
				
				#if (SDRAM_OPTION == 1)
				                case K_MEDIA_None:
				                        SDRAM_Format();
				                        break;
				#endif
				
				                default:
				#if (CARD_OPTION == 1)
				*/
				                         //ada@0401 For Multi-Frame Play Back
				                         //Clear the area where saving the start-cluster parameter of each image file
				//                         USR_ResetDramFdbParameterArea();
				
				          			sts = DOS_Format(eraseCard);
				/*
				#endif
				                        break;
				        }
				*/
				        return sts;
				}