AtomComments

/*
    LIST: This command LIST directories and FILES.
    Parameters include:
    LIST D... LF

    D... = Directory to start at. "/" is root (UP TO 126 BYTES + SPACE)
    LF = LINE FEED (1 BYTE 0x0A)

    EXAMPLE: LIST / 0x0A

    The above example will return: C [X LF]
    C = Count of directories Found
    X = Directory/File Name
    LF = LINE FEED (0x0A)

    Example: If your root has 3 folders [FOLD1]-[FOLD2]-[FOLD3] and 1 file [HELLO.TXT]
    LIST / 0x0A
    Will return:
    0x04 FOLD1 0x0A FOLD2 0x0A FOLD3 0x0A HELLO.TXT 0x0A
*/
    if(strncmp(CMD[LIST],RX_CMD,4) == 0)    //Send out directory listing
    {
        res = scan_files(RX_ARG,ALL_T);
        return;
    }
/*
    LIFI: This command list FILES ONLY.
    Parameters include:
    LIFI D... LF

    D... = Directory to start at. "/" is root (UP TO 126 BYTES + SPACE)
    LF = LINE FEED (1 BYTE 0x0A)

    EXAMPLE: LIFI / 0x0A

    The above example will return: C [X LF]
    C = Count of directories Found
    X = File Name
    LF = LINE FEED (0x0A)

    Example: If your root has 3 folders [FOLD1]-[FOLD2]-[FOLD3] and 1 file [HELLO.TXT]
    LIFI / 0x0A
    Will return:
    0x01 HELLO.TXT 0x0A
*/
    if(strncmp(CMD[LIST_FILES],RX_CMD,4) == 0)  //Send out directory listing
    {
        res = scan_files(RX_ARG,FILE_T);
        return;
    }
/*
    LIDI: This command LIST directories only.
    Parameters include:
    LIDI D... LF

    D... = Directory to start at. "/" is root (UP TO 126 BYTES + SPACE)
    LF = LINE FEED (1 BYTE 0x0A)

    EXAMPLE: LIDI / 0x0A

    The above example will return: C [X LF]
    C = Count of directories Found
    X = Directory Name
    LF = LINE FEED (0x0A)

    Example: If your root has 3 folders [FOLD1]-[FOLD2]-[FOLD3] and 1 file [HELLO.TXT]
    LIDI / 0x0A
    Will return:
    0x03 FOLD1 0x0A FOLD2 0x0A FOLD3 0x0A

*/
    if(strncmp(CMD[LIST_DIRS],RX_CMD,4) == 0)   //Send out directory listing
    {
        res = scan_files(RX_ARG,DIR_T);
        return;
    }
/*
    READ: This command reads a file.
    Parameters include:
    READ SSSS C F... LF

    SSSS = Seek Location, where to start when getting data (4 BYTES + SPACE)
    C = Count of bytes to return, MAX 128 (1 BYTE + SPACE)
    F... = FILE NAME (UP TO 120 BYTES + SPACE)
    LF = LINE FEED (1 BYTE 0x0A)

    EXAMPLE: READ 0000 10 HELLO.TXT 0x0A

    The above example will return the first 10 bytes in the file HELLO.TXT
*/
    if(strncmp(CMD[READ],RX_CMD,4) == 0)    //Read data from a file
    {
        SeekPosition = RX_ARG[3] + (RX_ARG[2] << 8)+ (RX_ARG[1] << 16)+ (RX_ARG[0] << 24);
        Bytes2Read = RX_ARG[5];
        res = f_open(&fsrc,(RX_ARG+7),FA_READ);

        memset(Buffer,0,128);

        res = f_lseek(&fsrc,SeekPosition);
        res = f_read(&fsrc,Buffer, Bytes2Read, &br);    /* Read a chunk of src file */

        RWC[0] = br;        //Get how many actual bytes were read.
        UART_TX(RWC[0]);    //inform the user how many bytes to expect after this
        UART_BUFF(Buffer,br);   //Send the buffer.

        return;
    }