author | Gareth Stockwell <gareth.stockwell@accenture.com> |
Wed, 22 Sep 2010 17:06:27 +0100 | |
branch | graphics-phase-3 |
changeset 112 | b6c206049d8a |
permissions | -rw-r--r-- |
112
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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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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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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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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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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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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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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return a_syborg_nvmemory->NVMemSetCallback( aGraphicsCallBack ); |
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} |
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} |