wuart.c

通过5120芯片实现无线UART进行数据的传输

/****************************************************************************
 *
 * MODULE              Jenie Wireless UART
 *
 * COMPONENT           $RCSfile: Wuart.c,v $
 *
 * VERSION             $Name:  $
 *
 * REVISION            $Revision: 1.1 $
 *
 * DATED               $Date: 2007/11/02 12:32:42 $
 *
 * STATUS              $State: Exp $
 *
 * AUTHOR              Ian Morris, Martin Looker
 *
 * DESCRIPTION         Jenie Wireless UART - Wireless UART.
 *
 * CHANGE HISTORY
 *
 * $Log: Wuart.c,v $
 * Revision 1.1  2007/11/02 12:32:42  mlook
 * Adding new application notes
 *
 *
 *
 * LAST MODIFIED BY    $Author: mlook $
 *                     $Modtime: $
 *
 ****************************************************************************
 *
 * This software is owned by Jennic and/or its supplier and is protected
 * under applicable copyright laws. All rights are reserved. We grant You,
 * and any third parties, a license to use this software solely and
 * exclusively on Jennic products. You, and any third parties must reproduce
 * the copyright and warranty notice and any other legend of ownership on each
 * copy or partial copy of the software.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS". JENNIC MAKES NO WARRANTIES, WHETHER
 * EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
 * ACCURACY OR LACK OF NEGLIGENCE. JENNIC SHALL NOT, IN ANY CIRCUMSTANCES,
 * BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, SPECIAL,
 * INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON WHATSOEVER.
 *
 * Copyright Jennic Ltd 2005, 2006, 2007. All rights reserved
 *
 ****************************************************************************/

/****************************************************************************/
/***        Include files                                                 ***/
/****************************************************************************/
#include <jendefs.h>
#include <AppHardwareApi.h>
#include <gdb.h>

#include "Wuart.h"
#include "Network.h"
#include "Serial.h"
#include "SerialQ.h"
#include "Uart.h"

/****************************************************************************/
/***        Macro Definitions                                             ***/
/****************************************************************************/
#define MAX_DATA_PER_FRAME      64

/****************************************************************************/
/***        Type Definitions                                              ***/
/****************************************************************************/

/****************************************************************************/
/***        Local Function Prototypes                                     ***/
/****************************************************************************/

/****************************************************************************/
/***        Exported Variables                                            ***/
/****************************************************************************/

/****************************************************************************/
/***        Local Variables                                               ***/
/****************************************************************************/
PRIVATE uint8 u8TxFrameHandle = 0;
PRIVATE uint8 u8RxFrameHandle = 0;

/****************************************************************************/
/***        Local Constants                                               ***/
/****************************************************************************/

/****************************************************************************
 *
 * NAME: vWuart_Init
 *
 * DESCRIPTION:
 * Initialises stack and hardware, sets non-default values in the 802.15.4
 * PIB.
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * None.
 ****************************************************************************/
PUBLIC void vWuart_Init(void)
{
    /* Initialise the serial port and rx/tx queues */
    vSerial_Init();
}

/****************************************************************************
 *
 * NAME: vWuart_TxData
 *
 * DESCRIPTION:
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * None.
 ****************************************************************************/
PUBLIC void vWuart_TxData(void)
{
    uint8   au8Data[MAX_DATA_PER_FRAME];
    uint16	u16Length = 0;
    int16  	i16RxChar;

    /* Are network services up ? */
    if (bNetwork_Services_Up())
    {

		i16RxChar = i16Serial_RxChar();

		if (i16RxChar >= 0)
		{

			au8Data[u16Length++] = u8TxFrameHandle++;
			au8Data[u16Length++] = (uint8) i16RxChar;

			while ((i16RxChar >= 0) && (u16Length < MAX_DATA_PER_FRAME))
			{
				i16RxChar = i16Serial_RxChar();

				if (i16RxChar >= 0)
				{
					/* Set payload data */
					au8Data[u16Length++] = (uint8) i16RxChar;
				}
			}

			/* Request transmit */
			(void) bNetwork_Service_Tx(WUART_SERVICE, u16Length, au8Data);
		}
	}
}

/****************************************************************************
 *
 * NAME: vWuart_RxData
 *
 * DESCRIPTION:
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * None.
 ****************************************************************************/
PUBLIC void vWuart_RxData(uint16 u16Length, uint8 *pu8Data)
{
	uint16 i;

	if (pu8Data[0] == u8RxFrameHandle)
	{
		u8RxFrameHandle++;

		/* Copy frame data to serial buffer for output on UART */
		for (i = 1; i < u16Length; i++)
		{
			vSerial_TxChar(pu8Data[i]);
		}
	}
	/* Must have missed a frame */
	else if (pu8Data[0] > u8RxFrameHandle)
	{
		u8RxFrameHandle = pu8Data[0] + 1;

		/* Copy frame data to serial buffer for output on UART */
		for (i = 1; i < u16Length; i++)
		{
			vSerial_TxChar(pu8Data[i]);
		}
	}
	/* Must be the same frame as last time */
	else if (pu8Data[0] < u8RxFrameHandle)
	{
		/* Dont do anything as we already have the data */
	}
}
/****************************************************************************/
/***        END OF FILE                                                   ***/
/****************************************************************************/