/***************************************************/
Code snippet demonstrating usage of GIO_submit() API 
/***************************************************/

/* Callback functions */
GIO_TappCallback uppReadCallback()
{
	Uint32 i = 0x00;
	i = i; /* Done to avoid compiler warnings */

	return 0;
}

GIO_TappCallback uppWriteCallback()
{
	Uint32 i = 0x00;
	i = i; /* Done to avoid compiler warnings */

	return 0;
}


Void uppCreateStreams(Void)
{
    GIO_Attrs gioAttrs = GIO_ATTRS;

    /*
     * Initialize channel attributes.
     */
    gioAttrs.nPackets = 10;

    /* Create a TX and RX channel for the DLB mode                            */

	uPPoutHandle = GIO_create("/Upp0", IOM_OUTPUT, &status, &uppChanparamA, &gioAttrs);
	uPPinHandle = GIO_create("/Upp0", IOM_INPUT , &status, &uppChanparamB, &gioAttrs);

    if ((NULL == uPPoutHandle) || (NULL == uPPinHandle))
    {
        LOG_printf(&trace,"Stream Creation Failed");
        SYS_abort("Stream Creation Failed\n");
    }
}

Void uppLoopback(Void)
{
    Uint32            	count      = 0;
	Uint32			  	status     = 0;
	GIO_AppCallback 	callback;

    transParam[count].windowAddr = buf[0]; /* Empty buffer */
    transParam[count].bytesPerLine = BUFSIZE; /* 1024 bytes */
    transParam[count].lineCount = 1;
    transParam[count].lineOffset = 0;

	callback.fxn = (GIO_TappCallback)&uppReadCallback;
	callback.arg = NULL;

    status = GIO_submit(uPPinHandle,
                        IOM_READ, 
                        &transParam[count],
                        (size_t *)&transParam[count].bytesPerLine,
                        &callback);
    if (IOM_PENDING != status)
    {
        LOG_printf(&trace,"Issue to output stream failed.");
        SYS_abort("Issue to output stream failed\n");
    }

    transParam[count].windowAddr = buf[1]; /* Filled buffer */
    transParam[count].bytesPerLine = BUFSIZE; /* 1024 bytes */
    transParam[count].lineCount = 1;
    transParam[count].lineOffset = 0;

	callback.fxn = (GIO_TappCallback)&uppWriteCallback;
	callback.arg = NULL;

    status = GIO_submit(uPPoutHandle,
                        IOM_WRITE, 
                        &transParam[count],
                        (size_t *)&transParam[count].bytesPerLine,
                        &callback);
    if (IOM_PENDING != status)
    {
        LOG_printf(&trace,"Issue to output stream failed.");
        SYS_abort("Issue to output stream failed\n");
    }

    /* Check for "buf[0]" - The received data should be available here */
}