char load(char* filename, uint8_t* buffer, uint8_t size){
char full_filename[40];
strcpy(full_filename, volume_name);
strcat(full_filename,"/");
strcat(full_filename, filename);
int32_t descriptor = EEFS_Open(full_filename, O_RDWR);
//Check if file even exists:
if(descriptor < 0){
return descriptor;
}
EEFS_Read(descriptor, buffer, size);
EEFS_Close(descriptor);
return 0;
}
int main (int argc, char **argv)
{
int32 Status;
EEFS_DirectoryDescriptor_t *DirDescriptor = NULL;
EEFS_DirectoryEntry_t *DirEntry = NULL;
EEFS_Stat_t StatBuffer;
int32 eefs_fd;
int host_fd;
int total_used_space;
int total_free_space;
/*
** Process the command line options
*/
SetCommandLineOptionsDefaults(&CommandLineOptions);
ProcessCommandLineOptions(argc, argv, &CommandLineOptions);
/*
** Open the device ( BDM or image file )
*/
eefstool_open_device();
/*
** Init the EEFS
*/
/*
** Mount the EEPROM disk volumes
*/
Status = EEFS_InitFS("/EEDEV1", CommandLineOptions.EEFSMemoryAddress);
if ( Status == 0 )
{
Status = EEFS_Mount("/EEDEV1",eefs_mountpoint);
if ( Status != 0 )
{
printf("Error: Failed to mount EEPROM File System\n");
}
}
else
{
printf("Error: Failed to initialize EEPROM FS\n");
}
/*
** Process the command
*/
if ( CommandLineOptions.DirectoryListingCommand == TRUE )
{
/*
** Get a directory of the EEFS
*/
DirDescriptor = EEFS_OpenDir(eefs_mountpoint);
if ( DirDescriptor != NULL )
{
DirEntry = NULL;
printf("--> EEFS Directory:\n");
printf("%32s %10s\n","Filename","Size");
printf("------------------------------------------------------\n");
while ( (DirEntry = EEFS_ReadDir(DirDescriptor)) != NULL )
{
if ( DirEntry->InUse != 0 )
{
printf("%32s %10d\n",DirEntry->Filename,(int)DirEntry->MaxFileSize);
}
}
printf("------------------------------------------------------\n");
Status = EEFS_CloseDir(DirDescriptor);
}
}
if ( CommandLineOptions.EepromUsageCommand == TRUE )
{
/*
** Dump the EEPROM usage stats for the EEFS
*/
total_used_space = 0;
total_free_space = 0;
DirDescriptor = EEFS_OpenDir(eefs_mountpoint);
if ( DirDescriptor != NULL )
{
DirEntry = NULL;
printf("--> EEFS Usage Stats:\n");
printf("%32s %10s %10s\n","Filename","Size", "Max Size");
printf("------------------------------------------------------\n");
while ( (DirEntry = EEFS_ReadDir(DirDescriptor)) != NULL )
{
if ( DirEntry->InUse != 0 )
{
strcpy(eefs_filename, eefs_mountpoint);
strcat(eefs_filename,"/");
strcat(eefs_filename,DirEntry->Filename);
Status = EEFS_Stat(eefs_filename, &StatBuffer);
if ( Status == 0 )
{
printf("%32s %10d %10d\n",DirEntry->Filename, (int)StatBuffer.FileSize,
(int)DirEntry->MaxFileSize);
total_used_space = total_used_space + StatBuffer.FileSize;
total_free_space = total_free_space +
( DirEntry->MaxFileSize - StatBuffer.FileSize);
}
else
{
printf("Error: Cannot get Stat buffer for file: %s\n",eefs_filename);
}
}
}
printf("------------------------------------------------------\n");
printf("Total Used space = %d bytes.\n",total_used_space);
printf("Total Free space = %d bytes.\n",total_free_space);
printf("Total Space = %d bytes.\n",total_used_space + total_free_space);
Status = EEFS_CloseDir(DirDescriptor);
}
}
else if ( CommandLineOptions.CopyFromCommand == TRUE ) //读取EEPROM复制到文件系统中
{ //打开一个文件只写
host_fd = open(CommandLineOptions.Filename2, O_CREAT | O_WRONLY, S_IRWXU );
if ( host_fd < 0 )
{
printf("Error opening host file: %s\n",CommandLineOptions.Filename2);
}
else
{
strcpy(eefs_filename, eefs_mountpoint);
strcat(eefs_filename,"/"); //
strcat(eefs_filename,CommandLineOptions.Filename1);
eefs_fd = EEFS_Open(eefs_filename, 0);//打开EEFS 文件系统
if ( eefs_fd < 0 )
{
printf("Error opening EEFS file: %s\n",CommandLineOptions.Filename1);
close(host_fd);
}
else
{
int32 DataRead;
int DataWritten;
boolean DataToRead;
char buffer[512];
/*
** Copy the file
*/
printf("Copying: EEPROM File System: %s, to the host: %s\n",
CommandLineOptions.Filename1,
CommandLineOptions.Filename2);
DataToRead = TRUE;
while ( DataToRead == TRUE )
{
DataRead = EEFS_Read(eefs_fd, &buffer[0], 512); //读取512字节到BUF中
if ( DataRead == 0 )
{
DataToRead = FALSE;
}
else
{
DataWritten = write(host_fd, &buffer[0],DataRead); //将EEPROM内的数据写入文件中
if ( DataWritten != DataRead )
{
printf("Warning: Amount of data written != Data Read\n");
}
}
} /* End while */
EEFS_Close(eefs_fd);//关闭EE文件系统
close(host_fd);
printf("Copy completed\n");
}
}
}
else if ( CommandLineOptions.CopyToCommand == TRUE ) //从文件系统复制到EEPROM中
{
host_fd = open(CommandLineOptions.Filename1, O_RDONLY, S_IRWXU );
if ( host_fd < 0 )
{
printf("Error opening host file: %s\n",CommandLineOptions.Filename1);
}
else
{
strcpy(eefs_filename, eefs_mountpoint);
strcat(eefs_filename,"/");
strcat(eefs_filename,CommandLineOptions.Filename2);
//源文件/命令行文件--格式
eefs_fd = EEFS_Creat(eefs_filename, 0); //创建一个名为文件eefs_filename变量包含的
if ( eefs_fd < 0 )
{
printf("Error calling EEFS_Creat on EEFS file: %s\n",CommandLineOptions.Filename2);
close(host_fd);
}
else
{
int32 DataRead;
int DataWritten;
boolean DataToRead;
char buffer[512];
/*
** Copy the file
*/
printf("Copying: From the host file %s, to the EEPROM File System file: %s.\n",
CommandLineOptions.Filename1,
CommandLineOptions.Filename2);
DataToRead = TRUE;
while ( DataToRead == TRUE )
{
DataRead = read(host_fd, &buffer[0], 512);
if ( DataRead == 0 )
{
DataToRead = FALSE;
}
else
{
DataWritten = EEFS_Write(eefs_fd, &buffer[0],DataRead);
if ( DataWritten != DataRead )
{
printf("Warning: Amount of data written != Data Read\n");
}
}
} /* End while */
EEFS_Close(eefs_fd);
close(host_fd);
printf("\nCopy completed\n");
}
}
}
else if ( CommandLineOptions.DeleteCommand == TRUE )
{
printf("Deleting %s from the EEPROM File system\n",
CommandLineOptions.Filename1);
printf("Done\n");
}
else if ( CommandLineOptions.RenameCommand == TRUE )
{
printf("Rename a file on the EEPROM file system from: %s, to %s\n",
CommandLineOptions.Filename1,
CommandLineOptions.Filename2);
}
/*
** Close the device ( BDM or image file )
*/
eefstool_close_device();
return 0;
}