path: root/Software/Embedded_SW/Embedded/Common/SWUpdate/FileSystem.c

/*
 * FileSystem.c
 *
 *  Created on: Oct 23, 2018
 *      Author: shlomo
 */
#include "include.h"
#include "Communication/CommunicationTask.h"
#include <DataDef.h>

#include  <Communication/PMR/IO/FileUploadRequest.pb-c.h>
#include  <Communication/PMR/IO/FileUploadResponse.pb-c.h>
#include  <Communication/PMR/IO/FileChunkUploadRequest.pb-c.h>
#include  <Communication/PMR/IO/FileChunkUploadResponse.pb-c.h>
#include  <Communication/PMR/IO/FileDownloadRequest.pb-c.h>
#include  <Communication/PMR/IO/FileDownloadResponse.pb-c.h>
#include  <Communication/PMR/IO/FileChunkDownloadRequest.pb-c.h>
#include  <Communication/PMR/IO/FileChunkDownloadResponse.pb-c.h>
#include  <Communication/PMR/IO/ExecuteProcessRequest.pb-c.h>
#include  <Communication/PMR/IO/ExecuteProcessResponse.pb-c.h>
#include  <Communication/PMR/IO/KillProcessRequest.pb-c.h>
#include  <Communication/PMR/IO/KillProcessResponse.pb-c.h>
#include  <Communication/PMR/IO/CreateRequest.pb-c.h>
#include  <Communication/PMR/IO/CreateResponse.pb-c.h>
#include  <Communication/PMR/IO/DeleteRequest.pb-c.h>
#include  <Communication/PMR/IO/DeleteResponse.pb-c.h>
#include  <Communication/PMR/IO/GetStorageInfoRequest.pb-c.h>
#include  <Communication/PMR/IO/GetStorageInfoResponse.pb-c.h>
#include  <Communication/PMR/IO/GetFilesRequest.pb-c.h>
#include  <Communication/PMR/IO/GetFilesResponse.pb-c.h>
#include  <Communication/PMR/IO/FileAttribute.pb-c.h>

#include "third_party/fatfs/src/ffconf.h"
#include "third_party/fatfs/src/diskio.h"
#include "drivers/Flash_Memory/Flash_Memory.h"
#include "drivers/Flash_Memory/fatfs/ff.h"

#include "third_party/fatfs/src/ffconf.h"

ErrorCode FileError_to_ErrorCode[FR_INVALID_PARAMETER+1] = {ERROR_CODE__NONE,ERROR_CODE__FILE_REQUEST_DISK_ERR,ERROR_CODE__FILE_REQUEST_INT_ERR,ERROR_CODE__FILE_REQUEST_NOT_READY,ERROR_CODE__FILE_REQUEST_NO_FILE,
                                                       ERROR_CODE__FILE_REQUEST_NO_PATH,ERROR_CODE__FILE_REQUEST_INVALID_NAME,ERROR_CODE__FILE_REQUEST_DENIED,ERROR_CODE__FILE_REQUEST_EXIST,ERROR_CODE__FILE_REQUEST_INVALID_OBJECT,
                                                       ERROR_CODE__FILE_REQUEST_WRITE_PROTECTED,ERROR_CODE__FILE_REQUEST_INVALID_DRIVE,ERROR_CODE__FILE_REQUEST_NOT_ENABLED,ERROR_CODE__FILE_REQUEST_NO_FILESYSTEM,
                                                       ERROR_CODE__FILE_REQUEST_MKFS_ABORTED,ERROR_CODE__FILE_REQUEST_TIMEOUT,ERROR_CODE__FILE_REQUEST_LOCKED,ERROR_CODE__FILE_REQUEST_NOT_ENOUGH_CORE,ERROR_CODE__FILE_REQUEST_TOO_MANY_OPEN_FILES,
                                                       ERROR_CODE__FILE_REQUEST_INVALID_PARAMETER};


FIL *UploadFileHandle = 0;  //the system supports a single active file
FIL *DownloadFileHandle = 0;  //the system supports a single active file
char FileHandleChar[5];
char ErrorMsg[100];
#define MAX_CHUNK_LENGTH 4000
int32_t FileLength = 0;
int32_t FileReceivedLength = 0;
int32_t FileSentLength = 0;
static char g_cCwdBuf[50] = "/";
uint32_t WrittenBytes = 0;
uint32_t ReadBytes = 0;


ErrorCode getErrorCode(FRESULT Fresult)
{
    return  FileError_to_ErrorCode[Fresult];
}
bool isDirectory(FileAttribute FileAtt)
{
    if (FileAtt&&FILE_ATTRIBUTE__Directory)
        return true;
    return false;
}

uint32_t    FileUploadRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;

    FRESULT Fresult = FR_OK;

    MessageContainer responseContainer;

    FileUploadRequest* request = file_upload_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    FileUploadResponse response = FILE_UPLOAD_RESPONSE__INIT;

    WrittenBytes=0;
    UploadFileHandle = my_malloc(sizeof(FIL));
    if (UploadFileHandle == 0)
        Fresult = FR_DENIED;
    else
    {
        Fresult = f_open(UploadFileHandle,request->path,FA_READ | FA_WRITE  |FA_OPEN_ALWAYS| FA_CREATE_ALWAYS);
        if (Fresult == FR_OK)
        {
            FileLength = request->length;
            response.has_maxchunklength = true;
            response.maxchunklength = MAX_CHUNK_LENGTH;
            strcpy(FileHandleChar, "1234");
            response.uploadid = FileHandleChar; //supporting only single file at each time.
        }
        else
        {
            free (UploadFileHandle);
            UploadFileHandle = 0;
        }

    }


    responseContainer = createContainer(MESSAGE_TYPE__FileUploadResponse,  requestContainer->token, false, &response, &file_upload_response__pack, &file_upload_response__get_packed_size);
    if (Fresult!= FR_OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    file_upload_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    FileChunkUploadRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;
    FRESULT Fresult = FR_OK;


    MessageContainer responseContainer;

    FileChunkUploadRequest* request = file_chunk_upload_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    FileChunkUploadResponse response = FILE_CHUNK_UPLOAD_RESPONSE__INIT;

    FIL *ReceivedFileHandle;  //the system supports a single active file

  //  if (request->uploadid == 1)
    ReceivedFileHandle = UploadFileHandle;
//    memcpy (&ReceivedFileHandle,request->uploadid,sizeof(ReceivedFileHandle));
    //if (ReceivedFileHandle == FileHandle)
    //{
        Fresult = f_write(ReceivedFileHandle,request->buffer.data,request->buffer.len,&WrittenBytes );
        if(Fresult != FR_OK)
        {
            LOG_ERROR (Fresult,"f_write error");
        }
        else
        {
            FileReceivedLength += WrittenBytes;
            if (FileReceivedLength == FileLength)
            {
                REPORT_MSG (FileReceivedLength,"file upload ended successfully");
                f_close(ReceivedFileHandle);
                free (UploadFileHandle);
                FileReceivedLength = 0;
            }
            else
            {
                if (FileReceivedLength > FileLength)
                {
                    REPORT_MSG (FileReceivedLength,"file upload too much data!");
                    f_close(ReceivedFileHandle);
                    free (UploadFileHandle);
                    FileReceivedLength = 0;
                }
            }
        }
    /*}
    else
    {
        LOG_ERROR (ReceivedFileHandle,"file id error");
        f_close(FileHandle);
        free (FileHandle);
        status = ERROR_CODE__FILE_NOT_FOUND;
    }*/

    responseContainer = createContainer(MESSAGE_TYPE__FileChunkUploadResponse,  requestContainer->token, false, &response, &file_chunk_upload_response__pack, &file_chunk_upload_response__get_packed_size);
    if (Fresult!= OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    file_chunk_upload_request__free_unpacked(request,NULL);
    my_free(responseContainer.data.data);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    FileDownloadRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;

    FRESULT Fresult = FR_OK;
    FILINFO* fno;

    MessageContainer responseContainer;

    FileDownloadRequest* request = file_download_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    FileDownloadResponse response = FILE_DOWNLOAD_RESPONSE__INIT;

    ReadBytes=0;
    FileSentLength = 0;

    fno = my_malloc(sizeof(FILINFO));
    if (fno == 0)
        Fresult = FR_DENIED;
    else
    {
        memset (fno,0,sizeof(FILINFO));
        Fresult = f_stat(request->filename,fno);
        FileLength = fno->fsize;
        DownloadFileHandle = my_malloc(sizeof(FIL));
        if (DownloadFileHandle == 0)
            Fresult = FR_DENIED;
        else
        {
            Fresult = f_open(DownloadFileHandle,request->filename,FA_READ  );
            if (Fresult == FR_OK)
            {
                response.has_maxchunklength = true;
                response.maxchunklength = MAX_CHUNK_LENGTH;
                strcpy(FileHandleChar, "1234");
                response.downloadid = FileHandleChar; //supporting only single file at each time.
            }

        }
    }


    responseContainer = createContainer(MESSAGE_TYPE__FileDownloadResponse,  requestContainer->token, false, &response, &file_download_response__pack, &file_download_response__get_packed_size);
    if (Fresult!= FR_OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    file_download_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);
    my_free(fno);

    return OK;
}
uint32_t    FileChunkDownloadRequestFunc(MessageContainer* requestContainer)
{
    MessageContainer responseContainer;
    FileChunkDownloadRequest* request = file_chunk_download_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);
    FileChunkDownloadResponse response = FILE_CHUNK_DOWNLOAD_RESPONSE__INIT;
    FRESULT Fresult = FR_OK;
    FIL *SentFileHandle;  //the system supports a single active file

    SentFileHandle = DownloadFileHandle;
    char *Buffer = 0;
    Buffer = my_malloc (MAX_CHUNK_LENGTH);
    if (Buffer != NULL)
    {
        Fresult = f_read(SentFileHandle,Buffer,2000,&ReadBytes );
        if(Fresult != FR_OK)
        {
            LOG_ERROR (Fresult,"f_write error");
        }
        else
        {
            response.has_buffer = true;
            response.buffer.len = ReadBytes;
            response.buffer.data = Buffer;
            FileSentLength += ReadBytes;
            if (FileSentLength == FileLength)
            {
                REPORT_MSG (FileSentLength,"file download ended successfully");
                f_close(SentFileHandle);
                free (DownloadFileHandle);
                FileSentLength = 0;
            }
            else
            {
                if (FileSentLength > FileLength)
                {
                    REPORT_MSG (FileSentLength,"file download too much data!");
                    f_close(SentFileHandle);
                    free (DownloadFileHandle);
                    FileSentLength = 0;
                }
            }
        }
    }

    responseContainer = createContainer(MESSAGE_TYPE__FileChunkDownloadResponse,  requestContainer->token, false, &response, &file_chunk_download_response__pack, &file_chunk_download_response__get_packed_size);
    if (Fresult!= OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    file_chunk_download_request__free_unpacked(request,NULL);
    my_free(responseContainer.data.data);
    my_free(Buffer);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    ExecuteProcessRequestFunc(MessageContainer* requestContainer)
{
    uint32_t status = OK;

    MessageContainer responseContainer;

    ExecuteProcessRequest* request = execute_process_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    ExecuteProcessResponse response = EXECUTE_PROCESS_RESPONSE__INIT;


    responseContainer = createContainer(MESSAGE_TYPE__ExecuteProcessResponse,  requestContainer->token, false, &response, &execute_process_response__pack, &execute_process_response__get_packed_size);
    if (status!= OK)
    {
        responseContainer.error = ERROR_CODE__GENERAL_ERROR;//getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    execute_process_request__free_unpacked(request,NULL);
    my_free(responseContainer.data.data);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    KillProcessRequestFunc(MessageContainer* requestContainer)
{
    uint32_t status = OK;

    MessageContainer responseContainer;

    KillProcessRequest* request = kill_process_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    KillProcessResponse response = KILL_PROCESS_RESPONSE__INIT;


    responseContainer = createContainer(MESSAGE_TYPE__KillProcessResponse,  requestContainer->token, false, &response, &kill_process_response__pack, &kill_process_response__get_packed_size);
    if (status!= OK)
    {
        responseContainer.error = ERROR_CODE__GENERAL_ERROR;//getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    kill_process_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    CreateRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;
    FRESULT Fresult = FR_OK;
    MessageContainer responseContainer;

    CreateRequest* request = create_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    CreateResponse response = CREATE_RESPONSE__INIT;

    if (isDirectory(request->attribute))
    {
        Fresult = f_mkdir(request->path);
    }
    else
    {
        UploadFileHandle = my_malloc(sizeof(FIL));
        if (UploadFileHandle == 0)
            Fresult = FR_DENIED;
        else
        {
            Fresult = f_open(UploadFileHandle,request->path,FA_CREATE_NEW);
            if (Fresult == FR_OK)
            {
                if (f_close (UploadFileHandle)!= FR_OK)
                {
                    Fresult = FR_LOCKED;
                }
            }
        }
    }
    if (Fresult != FR_OK)
    {
        //status = ERROR_CODE__FILE_NOT_FOUND;
        usnprintf(ErrorMsg, 100, "File Operation failed error code %d",Fresult);

    }
    free (UploadFileHandle);

    responseContainer = createContainer(MESSAGE_TYPE__CreateResponse,  requestContainer->token, false, &response, &create_response__pack, &create_response__get_packed_size);
    if (Fresult!= OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    create_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    DeleteRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;

    MessageContainer responseContainer;

    DeleteRequest* request = delete_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    DeleteResponse response = DELETE_RESPONSE__INIT;

    FILINFO* fno = 0;
    //int NumOfFiles = 0;
    FRESULT Fresult = FR_OK;

    Fresult = f_unlink(request->path);

    REPORT_MSG(Fresult, "File Delete");
    responseContainer = createContainer(MESSAGE_TYPE__DeleteResponse,  requestContainer->token, false, &response, &delete_response__pack, &delete_response__get_packed_size);
    if (Fresult!= OK)
    {
        usnprintf(ErrorMsg, 100, "File Operation failed error code %d",Fresult);
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = ErrorMsg;
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    my_free(fno);
    delete_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    GetStorageInfoRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;

    MessageContainer responseContainer;

    GetStorageInfoRequest* request = get_storage_info_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    GetStorageInfoResponse response = GET_STORAGE_INFO_RESPONSE__INIT;
    FATFS *fs;
    DWORD fre_clust, fre_sect, tot_sect;
    FRESULT Fresult = FR_OK;


    /* Get volume information and free clusters of drive 1 */
    Fresult = f_getfree("0:", &fre_clust, &fs);
     if (Fresult == FR_OK)
     {

    /* Get total sectors and free sectors */
         tot_sect = (fs->n_fatent - 2) * fs->csize;
         fre_sect = fre_clust * fs->csize;
         response.has_capacity = true;
         response.capacity = tot_sect/2*1024;
         response.has_freespace = true;
         response.freespace = fre_sect/2*1024;
         response.root = "/";
     }


    responseContainer = createContainer(MESSAGE_TYPE__GetStorageInfoResponse,  requestContainer->token, false, &response, &get_storage_info_response__pack, &get_storage_info_response__get_packed_size);
    if (Fresult!= OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    get_storage_info_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);

    return OK;
}
uint32_t    GetFilesRequestFunc(MessageContainer* requestContainer)
{
    //uint32_t status = OK;

    MessageContainer responseContainer;

    GetFilesRequest* request = get_files_request__unpack(NULL, requestContainer->data.len, requestContainer->data.data);

    GetFilesResponse response = GET_FILES_RESPONSE__INIT;

    #define MAX_NUM_OF_FILES 10
    DIR dir;
    FILINFO* fno[MAX_NUM_OF_FILES];
    char FullPath[MAX_NUM_OF_FILES][50];
    int i,NumOfFiles = 0;
    FRESULT Fresult = FR_OK;

    Fresult |= f_opendir(&dir, g_cCwdBuf);
    if(Fresult != FR_OK)
    {
        return(Fresult);
    }

    memset (fno,0,sizeof(fno));
    FileInfo **FilesInfo = (FileInfo**)my_malloc(sizeof(FileInfo *)*(MAX_NUM_OF_FILES));
    FileInfo Data[MAX_NUM_OF_FILES];
    memset(fno,0,sizeof(fno));
    fno[0] = my_malloc(sizeof(FILINFO));
	memset (fno[0],0,sizeof(FILINFO));

    //============================
    Fresult = f_opendir(&dir, request->path);                       /* Open the directory */
     if (Fresult == FR_OK)
     {
         for (NumOfFiles = 1;NumOfFiles < MAX_NUM_OF_FILES;NumOfFiles++)
         {
             fno[NumOfFiles] = my_malloc(sizeof(FILINFO));
             memset (fno[NumOfFiles],0,sizeof(FILINFO));
             Fresult = f_readdir(&dir, fno[NumOfFiles]);                   /* Read a directory item */
             if (Fresult == FR_OK)
             {
                 if(fno[NumOfFiles]->fname[0] ==0)
                 {
                     break;
                 }
             }
         }
     }

    if ((Fresult == FR_OK)&&(NumOfFiles))
    {
        for (i = 0;i < NumOfFiles;i++)
        {
           file_info__init(&Data[i]);
           FilesInfo[i] = &Data[i];
           Data[i].has_attribute = true;
           Data[i].attribute = fno[i]->fattrib;
           Data[i].name = fno[i]->fname;
           Data[i].has_length = true;
           Data[i].length = fno[i]->fsize;
           Data[i].lastmodifieddate = fno[i]->fdate;
           Data[i].lastmodifiedtime = fno[i]->ftime;
           if (i==0)
               usnprintf(&FullPath[i], 50,  "%s", request->path);
           else
              if (strlen(request->path)==1) //info under the root
                  usnprintf(&FullPath[i], 50,  "%s%s", request->path, fno[i]->fname);
              else
               usnprintf(&FullPath[i], 50,  "%s%s%s", request->path,"/", fno[i]->fname);
           Data[i].fullpath = &FullPath[i];

        }
        response.n_items = NumOfFiles;
        response.items = FilesInfo;
    }
    else
    {
        response.n_items = 0;
        response.items = NULL;
    }
    responseContainer = createContainer(MESSAGE_TYPE__GetFilesResponse,  requestContainer->token, false, &response, &get_files_response__pack, &get_files_response__get_packed_size);

    if (Fresult!= OK)
    {
        responseContainer.error = getErrorCode(Fresult);
        responseContainer.errormessage = "File operation error";
    }
    responseContainer.continuous = false;
    uint8_t* container_buffer = my_malloc(message_container__get_packed_size(&responseContainer));
    size_t container_size = message_container__pack(&responseContainer, container_buffer);
    my_free(responseContainer.data.data);
    my_free(FilesInfo);
    get_files_request__free_unpacked(request,NULL);
    SendChars(container_buffer, container_size);
    for (i = 0;i < NumOfFiles;i++)
    {
        if (fno[i])
               my_free (fno[i]);
    }
    return Fresult;
}
FRESULT FileWrite(void * buffer, uint16_t size,char *path)
{
    FRESULT Fresult = FR_OK;
    FIL *FileHandle = 0;  //the system supports a single active file
    uint32_t Bytes = 0;

    if (buffer)
    {
        FileHandle = my_malloc(sizeof(FIL));
        if (FileHandle == 0)
            Fresult = FR_DENIED;
        else
        {
            Fresult = f_open(FileHandle,path,FA_WRITE |  FA_OPEN_ALWAYS);
            if (Fresult == FR_OK)
            {
                Fresult = f_write(FileHandle,buffer,size,&Bytes );
                if(Fresult != FR_OK)
                {
                    LOG_ERROR (Fresult,"fread error");
                }
                f_close(FileHandle);
            }
            else
            {
                LOG_ERROR (Fresult,"fopen error");
            }
            my_free(FileHandle);
        }
    }
    return Fresult;
}
FRESULT FileRead(char *path, uint32_t *Size, void **Buffer)
{
    FRESULT Fresult = FR_OK;
    FIL *FileHandle = 0;  //the system supports a single active file
    FILINFO* fno = 0;
    void* buffer = NULL;
    uint32_t Bytes = 0;
    //uint32_t status  = 0;

    fno = my_malloc(sizeof(FILINFO));
    if (fno == 0)
        return ERROR;
    memset (fno,0,sizeof(FILINFO));
    Fresult = f_stat(path,fno);
    if (Fresult == FR_OK)
    {
        buffer = my_malloc (fno->fsize);
        if (buffer)
        {
            FileHandle = my_malloc(sizeof(FIL));
            if (FileHandle == 0)
                Fresult = FR_DENIED;
            else
            {
                Fresult = f_open(FileHandle,path,FA_READ);
                if (Fresult == FR_OK)
                {
                    Fresult = f_read(FileHandle,buffer,fno->fsize,&Bytes );
                    if(Fresult == FR_OK)
                    {
                        *Buffer = buffer;
                        *Size = (uint32_t)fno->fsize;
                    }
                    else
                    {
                        LOG_ERROR (Fresult,"fread error");
                        my_free (buffer);
                    }
                    f_close(FileHandle);
                }
                else
                {
                    LOG_ERROR (Fresult,"fopen error");
                    my_free (buffer);
                }
                my_free(FileHandle);
            }
        }
        else
        {
            LOG_ERROR (Fresult,"malloc error");
        }
    }
    else
    {
        LOG_ERROR (Fresult,"f_stat error");
    }
    my_free(fno);
    return Fresult;
}
FRESULT FileOpen(char *path, uint32_t *Size, FIL *FileHandle)
{
    FRESULT Fresult = FR_OK;
    FILINFO* fno = 0;

    fno = my_malloc(sizeof(FILINFO));
    if (fno == 0)
        return ERROR;
    memset (fno,0,sizeof(FILINFO));
    Fresult = f_stat(path,fno);
    *Size = (uint32_t)fno->fsize;
    if (Fresult == FR_OK)
    {
        //FileHandle = my_malloc(sizeof(FIL));
        if (FileHandle == 0)
            Fresult = FR_DENIED;
        else
            Fresult = f_open(FileHandle,path,FA_READ);
    }
    else
    {
        LOG_ERROR (Fresult,"f_stat error");
    }
    my_free(fno);
    return Fresult;
}