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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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* Simple non volatile memory device. nvmemmory.cpp
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*
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*/
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extern "C"
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{
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#include <stdio.h>
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}
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#include "nvmemmory.h"
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SyborgNVMemory::SyborgNVMemory( uint32_t a_sectorsize ):
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iNVMemSectorSizeInBytes( a_sectorsize )
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{
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for( int32_t index = 0; index < NVMEM_MAX_STREAMHANDLES; index += 1 )
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{
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i_filestream[index] = NULL;
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}
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}
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SyborgNVMemory::~SyborgNVMemory()
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{
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NVMemReset();
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}
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int32_t SyborgNVMemory::NVMemReset( )
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{
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/*Initialize the file array*/
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for( int32_t index = 0; index < NVMEM_MAX_STREAMHANDLES; index += 1 )
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{
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if( i_filestream[index] != NULL )
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{
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fclose( i_filestream[index] );
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i_filestream[index] = NULL;
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}
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}
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return 0;
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}
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int32_t SyborgNVMemory::NVMemCreateImage( char* a_memoryarrayname, uint32_t a_sectorcount, uint32_t a_sectorsize )
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{
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/* Create a temporary MByte buffer array for image creation purpose */
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const uint32_t tempbufsize = 1024 * 1024;
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uint8_t tempbuf[ tempbufsize ];
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uint32_t index = 0;
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FILE *filestream = NULL;
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char mode1[4] = {"rb"};
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char mode2[4] = {"wb"};
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int32_t ret = NVMEM_ERROR_CREATE;
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uint32_t temparraysectorcount = tempbufsize / a_sectorsize;
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iNVMemSectorSizeInBytes = a_sectorsize;
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/* Try to open the specified file. If it exists we do not create a new one */
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filestream = fopen( a_memoryarrayname, &mode1[0] );
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if( filestream == NULL )
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{
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/* Fill MBR with zeroes */
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for( index = 0; index < iNVMemSectorSizeInBytes; index += 1 )
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{
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tempbuf[index] = 0;
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}
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/* Open a temporary file handle. Create the file*/
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filestream = fopen( a_memoryarrayname, &mode2[0] );
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if( ret != NULL )
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{
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ret = NVMEM_OK;
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for( index = 0; (index < a_sectorcount) && (ret == NVMEM_OK); index += temparraysectorcount )
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{
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/* Print one array of zeroes to our temporary buffer */
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if( fwrite( tempbuf, iNVMemSectorSizeInBytes, temparraysectorcount, filestream ) < 0 )
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{
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ret = NVMEM_ERROR_FWRITE;
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}
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}
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fclose( filestream );
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}
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else
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{
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ret = NVMEM_ERROR_FOPEN;
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}
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}
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return ret;
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}
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int32_t SyborgNVMemory::NVMemOpen( char* a_memoryarrayname )
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{
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char mode[4] = {"rb+"};
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int32_t handle = NVMEM_ERROR_OUT_OF_FREE_STREAMHANDLES;
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/* Search for a free handle position and assign if found */
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int32_t index = 0;
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for( ; index < NVMEM_MAX_STREAMHANDLES; index += 1 )
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{
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if( i_filestream[index] == NULL )
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{
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i_filestream[index] = fopen( a_memoryarrayname, &mode[0] );
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if( i_filestream[index] != NULL )
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{
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handle = index;
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printf("handle created: %d\n", index);
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}
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else
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{
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handle = NVMEM_ERROR_FOPEN;
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}
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break;
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}
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}
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return handle;
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}
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int32_t SyborgNVMemory::NVMemClose( int32_t a_memoryarrayhandle )
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{
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int32_t result = NVMEM_ERROR_FCLOSE;
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if( fclose( i_filestream[a_memoryarrayhandle] ) == 0 )
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{
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result = NVMEM_OK;
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}
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return result;
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}
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int32_t SyborgNVMemory::NVMemFlush( int32_t a_memoryarrayhandle )
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{
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int32_t result = NVMEM_ERROR_FFLUSH;
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if( fflush( i_filestream[a_memoryarrayhandle] ) == 0 )
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{
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result = NVMEM_OK;
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}
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return result;
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}
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void SyborgNVMemory::NVMemRead( uint32_t *a_client_targetmemoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount )
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{
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//printf("SyborgNVMemory::NVMemRead: sectorpos:%d sectorcount:%d hostaddr: 0x%08x handle: %d\n", a_memoryarraysectoroffset, a_sectorcount, a_client_targetmemoryaddr, a_memoryarrayhandle );
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uint32_t items_read = 0;
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long streamoffset = a_memoryarraysectoroffset * iNVMemSectorSizeInBytes;
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int32_t result = fseek( i_filestream[a_memoryarrayhandle], streamoffset, SEEK_SET );
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if( result == 0 )
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{
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items_read = fread( a_client_targetmemoryaddr, iNVMemSectorSizeInBytes, a_sectorcount, i_filestream[a_memoryarrayhandle] );
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/*Check that everything is read*/
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if( items_read != a_sectorcount )
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{
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result = NVMEM_ERROR_FREAD;
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}
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else
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{
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result = items_read;
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}
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}
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else /*error*/
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{
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result = NVMEM_ERROR_FSEEK;
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}
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i_NVMemCallBack( result );
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}
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void SyborgNVMemory::NVMemWrite( uint32_t *a_client_sourcememoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount )
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{
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//printf("SyborgNVMemory::NVMemWrite: sectorpos:%d sectorcount:%d hostaddr: 0x%08x\n", a_memoryarraysectoroffset, a_sectorcount, a_client_sourcememoryaddr );
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uint32_t items_written = 0;
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long streamoffset = a_memoryarraysectoroffset * iNVMemSectorSizeInBytes;
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int32_t result = fseek( i_filestream[a_memoryarrayhandle], streamoffset, SEEK_SET );
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if( result == 0 )
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{
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items_written = fwrite( a_client_sourcememoryaddr, iNVMemSectorSizeInBytes, a_sectorcount, i_filestream[a_memoryarrayhandle] );
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/*Check that everything is written*/
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if( items_written != a_sectorcount )
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{
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result = NVMEM_ERROR_FWRITE;
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}
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else
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{
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result = items_written;
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}
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}
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else /*error*/
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{
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result = NVMEM_ERROR_FSEEK;
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}
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i_NVMemCallBack( result );
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}
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uint32_t SyborgNVMemory::NVMemGetSectorCount( int32_t a_memoryarrayhandle )
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{
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long byte_size = 0;
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uint32_t sector_count = 0;
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printf("use handle: %d\n", a_memoryarrayhandle);
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fseek( i_filestream[a_memoryarrayhandle], 0, SEEK_END );
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byte_size = ftell( i_filestream[a_memoryarrayhandle] );
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sector_count = byte_size / iNVMemSectorSizeInBytes;
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return sector_count;
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}
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int32_t SyborgNVMemory::NVMemSetCallback( int (*aNVMemCallBack) (int) )
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{
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i_NVMemCallBack = aNVMemCallBack;
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return 0;
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}
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extern "C"
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{
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NVMEMORY_API SyborgNVMemory * nvmem_create( uint32_t a_sectorsize )
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{
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return new SyborgNVMemory( a_sectorsize );
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}
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NVMEMORY_API int32_t nvmem_reset( SyborgNVMemory* a_syborg_nvmemory )
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{
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return a_syborg_nvmemory->NVMemReset();
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}
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NVMEMORY_API int32_t nvmem_create_image( SyborgNVMemory* a_syborg_nvmemory, char* a_memoryarrayname, uint32_t a_sectorcount, uint32_t a_sectorsize )
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{
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return a_syborg_nvmemory->NVMemCreateImage( a_memoryarrayname, a_sectorcount, a_sectorsize );
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}
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NVMEMORY_API int32_t nvmem_open( SyborgNVMemory* a_syborg_nvmemory, char* a_memoryarrayname )
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{
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return a_syborg_nvmemory->NVMemOpen( a_memoryarrayname );
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}
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NVMEMORY_API int32_t nvmem_close( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle )
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{
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return a_syborg_nvmemory->NVMemClose( a_memoryarrayhandle );
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}
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NVMEMORY_API int32_t nvmem_flush( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle )
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{
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return a_syborg_nvmemory->NVMemFlush( a_memoryarrayhandle );
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}
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NVMEMORY_API void nvmem_read( SyborgNVMemory* a_syborg_nvmemory, uint32_t *a_client_targetmemoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount )
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{
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a_syborg_nvmemory->NVMemRead( a_client_targetmemoryaddr, a_memoryarrayhandle, a_memoryarraysectoroffset, a_sectorcount );
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}
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NVMEMORY_API void nvmem_write( SyborgNVMemory* a_syborg_nvmemory, uint32_t *a_client_sourcememoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount )
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{
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a_syborg_nvmemory->NVMemWrite( a_client_sourcememoryaddr, a_memoryarrayhandle, a_memoryarraysectoroffset, a_sectorcount );
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}
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NVMEMORY_API uint32_t nvmem_get_sector_count( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle )
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{
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return a_syborg_nvmemory->NVMemGetSectorCount( a_memoryarrayhandle );
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}
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NVMEMORY_API int32_t nvmem_set_callback( SyborgNVMemory* a_syborg_nvmemory, int (*aGraphicsCallBack) (int) )
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{
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return a_syborg_nvmemory->NVMemSetCallback( aGraphicsCallBack );
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}
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}
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