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1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 * Simple non volatile memory device. nvmemmory.cpp |
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17 * |
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18 */ |
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19 |
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20 extern "C" |
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21 { |
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22 #include <stdio.h> |
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23 } |
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24 #include "nvmemmory.h" |
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25 |
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26 SyborgNVMemory::SyborgNVMemory( uint32_t a_sectorsize ): |
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27 iNVMemSectorSizeInBytes( a_sectorsize ) |
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28 { |
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29 for( int32_t index = 0; index < NVMEM_MAX_STREAMHANDLES; index += 1 ) |
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30 { |
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31 i_filestream[index] = NULL; |
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32 } |
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33 } |
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34 |
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35 SyborgNVMemory::~SyborgNVMemory() |
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36 { |
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37 NVMemReset(); |
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38 } |
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39 |
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40 int32_t SyborgNVMemory::NVMemReset( ) |
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41 { |
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42 /*Initialize the file array*/ |
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43 for( int32_t index = 0; index < NVMEM_MAX_STREAMHANDLES; index += 1 ) |
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44 { |
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45 if( i_filestream[index] != NULL ) |
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46 { |
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47 fclose( i_filestream[index] ); |
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48 i_filestream[index] = NULL; |
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49 } |
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50 } |
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51 return 0; |
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52 } |
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53 |
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54 int32_t SyborgNVMemory::NVMemCreateImage( char* a_memoryarrayname, uint32_t a_sectorcount, uint32_t a_sectorsize ) |
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55 { |
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56 /* Create a temporary MByte buffer array for image creation purpose */ |
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57 const uint32_t tempbufsize = 1024 * 1024; |
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58 uint8_t tempbuf[ tempbufsize ]; |
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59 uint32_t index = 0; |
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60 FILE *filestream = NULL; |
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61 char mode1[4] = {"rb"}; |
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62 char mode2[4] = {"wb"}; |
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63 int32_t ret = NVMEM_ERROR_CREATE; |
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64 uint32_t temparraysectorcount = tempbufsize / a_sectorsize; |
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65 iNVMemSectorSizeInBytes = a_sectorsize; |
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66 |
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67 /* Try to open the specified file. If it exists we do not create a new one */ |
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68 filestream = fopen( a_memoryarrayname, &mode1[0] ); |
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69 if( filestream == NULL ) |
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70 { |
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71 /* Fill MBR with zeroes */ |
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72 for( index = 0; index < iNVMemSectorSizeInBytes; index += 1 ) |
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73 { |
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74 tempbuf[index] = 0; |
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75 } |
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76 /* Open a temporary file handle. Create the file*/ |
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77 filestream = fopen( a_memoryarrayname, &mode2[0] ); |
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78 |
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79 if( ret != NULL ) |
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80 { |
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81 ret = NVMEM_OK; |
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82 for( index = 0; (index < a_sectorcount) && (ret == NVMEM_OK); index += temparraysectorcount ) |
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83 { |
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84 /* Print one array of zeroes to our temporary buffer */ |
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85 if( fwrite( tempbuf, iNVMemSectorSizeInBytes, temparraysectorcount, filestream ) < 0 ) |
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86 { |
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87 ret = NVMEM_ERROR_FWRITE; |
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88 } |
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89 } |
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90 fclose( filestream ); |
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91 } |
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92 else |
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93 { |
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94 ret = NVMEM_ERROR_FOPEN; |
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95 } |
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96 } |
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97 return ret; |
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98 } |
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99 |
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100 int32_t SyborgNVMemory::NVMemOpen( char* a_memoryarrayname ) |
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101 { |
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102 char mode[4] = {"rb+"}; |
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103 int32_t handle = NVMEM_ERROR_OUT_OF_FREE_STREAMHANDLES; |
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104 /* Search for a free handle position and assign if found */ |
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105 int32_t index = 0; |
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106 for( ; index < NVMEM_MAX_STREAMHANDLES; index += 1 ) |
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107 { |
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108 if( i_filestream[index] == NULL ) |
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109 { |
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110 i_filestream[index] = fopen( a_memoryarrayname, &mode[0] ); |
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111 if( i_filestream[index] != NULL ) |
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112 { |
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113 handle = index; |
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114 printf("handle created: %d\n", index); |
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115 } |
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116 else |
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117 { |
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118 handle = NVMEM_ERROR_FOPEN; |
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119 } |
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120 break; |
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121 } |
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122 } |
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123 return handle; |
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124 } |
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125 |
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126 int32_t SyborgNVMemory::NVMemClose( int32_t a_memoryarrayhandle ) |
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127 { |
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128 int32_t result = NVMEM_ERROR_FCLOSE; |
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129 if( fclose( i_filestream[a_memoryarrayhandle] ) == 0 ) |
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130 { |
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131 result = NVMEM_OK; |
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132 } |
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133 return result; |
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134 } |
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135 |
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136 int32_t SyborgNVMemory::NVMemFlush( int32_t a_memoryarrayhandle ) |
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137 { |
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138 int32_t result = NVMEM_ERROR_FFLUSH; |
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139 if( fflush( i_filestream[a_memoryarrayhandle] ) == 0 ) |
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140 { |
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141 result = NVMEM_OK; |
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142 } |
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143 return result; |
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144 } |
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145 |
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146 void SyborgNVMemory::NVMemRead( uint32_t *a_client_targetmemoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount ) |
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147 { |
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148 //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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149 uint32_t items_read = 0; |
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150 long streamoffset = a_memoryarraysectoroffset * iNVMemSectorSizeInBytes; |
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151 int32_t result = fseek( i_filestream[a_memoryarrayhandle], streamoffset, SEEK_SET ); |
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152 if( result == 0 ) |
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153 { |
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154 items_read = fread( a_client_targetmemoryaddr, iNVMemSectorSizeInBytes, a_sectorcount, i_filestream[a_memoryarrayhandle] ); |
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155 /*Check that everything is read*/ |
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156 if( items_read != a_sectorcount ) |
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157 { |
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158 result = NVMEM_ERROR_FREAD; |
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159 } |
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160 else |
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161 { |
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162 result = items_read; |
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163 } |
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164 } |
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165 else /*error*/ |
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166 { |
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167 result = NVMEM_ERROR_FSEEK; |
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168 } |
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169 i_NVMemCallBack( result ); |
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170 } |
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171 |
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172 void SyborgNVMemory::NVMemWrite( uint32_t *a_client_sourcememoryaddr, int32_t a_memoryarrayhandle, uint32_t a_memoryarraysectoroffset, uint32_t a_sectorcount ) |
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173 { |
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174 //printf("SyborgNVMemory::NVMemWrite: sectorpos:%d sectorcount:%d hostaddr: 0x%08x\n", a_memoryarraysectoroffset, a_sectorcount, a_client_sourcememoryaddr ); |
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175 uint32_t items_written = 0; |
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176 long streamoffset = a_memoryarraysectoroffset * iNVMemSectorSizeInBytes; |
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177 int32_t result = fseek( i_filestream[a_memoryarrayhandle], streamoffset, SEEK_SET ); |
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178 if( result == 0 ) |
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179 { |
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180 items_written = fwrite( a_client_sourcememoryaddr, iNVMemSectorSizeInBytes, a_sectorcount, i_filestream[a_memoryarrayhandle] ); |
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181 /*Check that everything is written*/ |
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182 if( items_written != a_sectorcount ) |
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183 { |
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184 result = NVMEM_ERROR_FWRITE; |
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185 } |
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186 else |
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187 { |
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188 result = items_written; |
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189 } |
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190 } |
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191 else /*error*/ |
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192 { |
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193 result = NVMEM_ERROR_FSEEK; |
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194 } |
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195 i_NVMemCallBack( result ); |
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196 } |
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197 |
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198 uint32_t SyborgNVMemory::NVMemGetSectorCount( int32_t a_memoryarrayhandle ) |
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199 { |
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200 long byte_size = 0; |
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201 uint32_t sector_count = 0; |
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202 printf("use handle: %d\n", a_memoryarrayhandle); |
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203 fseek( i_filestream[a_memoryarrayhandle], 0, SEEK_END ); |
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204 byte_size = ftell( i_filestream[a_memoryarrayhandle] ); |
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205 sector_count = byte_size / iNVMemSectorSizeInBytes; |
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206 return sector_count; |
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207 } |
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208 |
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209 int32_t SyborgNVMemory::NVMemSetCallback( int (*aNVMemCallBack) (int) ) |
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210 { |
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211 i_NVMemCallBack = aNVMemCallBack; |
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212 return 0; |
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213 } |
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214 |
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215 |
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216 extern "C" |
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217 { |
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218 NVMEMORY_API SyborgNVMemory * nvmem_create( uint32_t a_sectorsize ) |
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219 { |
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220 return new SyborgNVMemory( a_sectorsize ); |
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221 } |
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222 |
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223 NVMEMORY_API int32_t nvmem_reset( SyborgNVMemory* a_syborg_nvmemory ) |
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224 { |
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225 return a_syborg_nvmemory->NVMemReset(); |
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226 } |
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227 |
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228 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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229 { |
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230 return a_syborg_nvmemory->NVMemCreateImage( a_memoryarrayname, a_sectorcount, a_sectorsize ); |
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231 } |
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232 |
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233 NVMEMORY_API int32_t nvmem_open( SyborgNVMemory* a_syborg_nvmemory, char* a_memoryarrayname ) |
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234 { |
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235 return a_syborg_nvmemory->NVMemOpen( a_memoryarrayname ); |
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236 } |
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237 |
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238 NVMEMORY_API int32_t nvmem_close( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle ) |
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239 { |
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240 return a_syborg_nvmemory->NVMemClose( a_memoryarrayhandle ); |
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241 } |
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242 |
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243 NVMEMORY_API int32_t nvmem_flush( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle ) |
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244 { |
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245 return a_syborg_nvmemory->NVMemFlush( a_memoryarrayhandle ); |
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246 } |
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247 |
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248 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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249 { |
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250 a_syborg_nvmemory->NVMemRead( a_client_targetmemoryaddr, a_memoryarrayhandle, a_memoryarraysectoroffset, a_sectorcount ); |
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251 } |
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252 |
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253 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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254 { |
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255 a_syborg_nvmemory->NVMemWrite( a_client_sourcememoryaddr, a_memoryarrayhandle, a_memoryarraysectoroffset, a_sectorcount ); |
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256 } |
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257 |
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258 NVMEMORY_API uint32_t nvmem_get_sector_count( SyborgNVMemory* a_syborg_nvmemory, int32_t a_memoryarrayhandle ) |
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259 { |
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260 return a_syborg_nvmemory->NVMemGetSectorCount( a_memoryarrayhandle ); |
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261 } |
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262 |
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263 NVMEMORY_API int32_t nvmem_set_callback( SyborgNVMemory* a_syborg_nvmemory, int (*aGraphicsCallBack) (int) ) |
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264 { |
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265 return a_syborg_nvmemory->NVMemSetCallback( aGraphicsCallBack ); |
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266 } |
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267 } |