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📄 txc_envoy_pkt_ctrl_valid.c

📁 TranSwitch Envoy CE2 & Envoy CE4 设备驱动及编程指南
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/*--------------------------------------------------------------------------

  *******                           ****
     *     *****     **    *    *  *       *    *   *  *****   ****   *    *
     *     *    *   *  *   **   *  *       *    *   *    *    *    *  *    *
     *     *    *  *    *  * *  *   ****   *    *   *    *    *       ******
     *     *****   ******  *  * *       *  * ** *   *    *    *       *    *
     *     *   *   *    *  *   **  *    *  **  **   *    *    *    *  *    *
     *     *    *  *    *  *    *   ****   *    *   *    *     ****   *    *

                        Proprietary and Confidential 

    This program is made available only to customers and prospective customers 
of TranSwitch Corporation under license and may be used only with TranSwitch 
semi-conductor products.

                      Copyright(c) 2004 TranSwitch Inc.

 --------------------------------------------------------------------------

             *******  **      **  **        **   ********   **      **
             *******  ***     **  **        **  **********  **      **
             **       ** *    **  **        **  **      **   **    **
             *****    **  *   **   **      **   **      **     *  *
             *****    **   *  **    **    **    **      **      **
             **       **    * **     **  **     **      **      **
             *******  **     ***      ****      **********      **
             *******  **      **       **        ********       **

 --------------------------------------------------------------------------
                           TranSwitch Envoy-CE2/CE4
                                Device Driver
 --------------------------------------------------------------------------
                                                                             
   Workfile:  txc_envoy_pkt_ctrl_valid.c                                             
                                                                             
   Description:  Validation of Packet Control API calls.                                          
                                                                             
  -------------------------------------------------------------------------- 
                               Revision History                              
  -------------------------------------------------------------------------- 
    Rev #     Date          Author                Description
   -----    -------      ------------         ----------------------
   0.5.0    6/03/04      F. Giannella         Initial release (beta)

 *--------------------------------------------------------------------------*/



/****************************************************************************
 **                             Include Files                              **
 ****************************************************************************/

#include "txc_envoy_api.h"
#include "txc_envoy_pkt_ctrl_support.h"
#include "txc_envoy_database.h"



/****************************************************************************
 **                            Static Functions                            **
 ****************************************************************************/


static TXC_U16BIT ENVOY_VerifySetPktCtrlHandleAndPort (TXC_U16BIT, TXC_U16BIT);
static TXC_U16BIT ENVOY_VerifyGetPktCtrlHandleAndPort (TXC_U16BIT, TXC_U16BIT);



/****************************************************************************
 **                        Static/Global Variables                         **
 ****************************************************************************/



/****************************************************************************
 **                                  Code                                  **
 ****************************************************************************/


/*--------------------------------------------------------------------------*

   FUNCTION:  ENVOY_SetIngressPacketCtrlValid

   DESCRIPTION: This function validates the TXC_ENVOY_IngressPacketCtrlSet

   INPUTS:  Same as TXC_ENVOY_IngressPacketCtrlSet

   RETURNS:  TXC_NO_ERR or an appropriate specific error code listed in
   appendix.

   CAVEATS:  None.

   REVISION HISTORY:

    Rev #     Date          Author                Description
   -----    -------      ------------         ----------------------
   0.5.0    6/03/04      F. Giannella         Initial release (beta)
*--------------------------------------------------------------------------*/

TXC_U16BIT  ENVOY_SetIngressPacketCtrlValid (TXC_U16BIT handle, TXC_U16BIT port, 
                  ENVOY_INGRESS_PKT_CTRL_STRUCT *ingressPktCtrlDataPtr)
{
    TXC_U16BIT error;

    /* first, check the handle & port */
    error = ENVOY_VerifySetPktCtrlHandleAndPort (handle, port);

    /* now range check the data */

    if (error == TXC_NO_ERR)
    {
        if ((ingressPktCtrlDataPtr->ingressDiscardErroredFramesEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressDiscardErroredFramesEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressDiscardErroredFramesEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressDiscardTruncatedFramesEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressDiscardTruncatedFramesEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressDiscardTruncatedFramesEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressDiscardLengthMismatchEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressDiscardLengthMismatchEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressDiscardLengthMismatchEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressDiscardCrcMismatchEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressDiscardCrcMismatchEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressDiscardCrcMismatchEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressDiscardAddressMismatchEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressDiscardAddressMismatchEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressDiscardAddressMismatchEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressCrcRemoveEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressCrcRemoveEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressCrcRemoveEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressPauseFrameDiscardEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressPauseFrameDiscardEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressPauseFrameDiscardEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((ingressPktCtrlDataPtr->ingressPrependEnable != TXC_FALSE) &&
            (ingressPktCtrlDataPtr->ingressPrependEnable != TXC_TRUE))
        {
            ingressPktCtrlDataPtr->ingressPrependEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }
    }
    /* return the error code */
    return error;
}



/************************************************************************************/
/*||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
/************************************************************************************

   FUNCTION:  ENVOY_GetIngressPacketCtrlValid

   DESCRIPTION: This function validates the TXC_ENVOY_IngressPacketCtrlSet

   INPUTS:  Same as TXC_ENVOY_IngressPacketCtrlSet

   RETURNS:  TXC_NO_ERR or an appropriate specific error code listed in
   appendix.

   CAVEATS:  None.

   REVISION HISTORY:

    Rev #     Date          Author                Description
   -----    -------      ------------         ----------------------
   0.5.0    6/03/04      F. Giannella         Initial release (beta)
 *--------------------------------------------------------------------------*/

TXC_U16BIT  ENVOY_GetIngressPacketCtrlValid (TXC_U16BIT handle, TXC_U16BIT port)
{
    TXC_U16BIT error;

    error = ENVOY_VerifyGetPktCtrlHandleAndPort (handle, port);

    /* return the error code */
    return error;
}

/************************************************************************************/
/*||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
/************************************************************************************
   FUNCTION:  ENVOY_SetEgressPacketCtrlValid

   DESCRIPTION: This function validates the TXC_ENVOY_EgressPacketCtrlSet

   INPUTS:  Same as TXC_ENVOY_EgressPacketCtrlSet

   RETURNS:  TXC_NO_ERR or an appropriate specific error code listed in
   appendix.

   CAVEATS:  None.

   REVISION HISTORY:

    Rev #     Date          Author                Description
   -----    -------      ------------         ----------------------
   0.5.0    6/03/04      F. Giannella         Initial release (beta)
*--------------------------------------------------------------------------*/

TXC_U16BIT  ENVOY_SetEgressPacketCtrlValid (TXC_U16BIT handle, TXC_U16BIT port, 
                           ENVOY_EGRESS_PKT_CTRL_STRUCT *egressPktCtrlDataPtr)
{
    TXC_U16BIT error;

    /* first, check the handle & port */
    error = ENVOY_VerifySetPktCtrlHandleAndPort (handle, port);

    /* now range check the data */

    if (error == TXC_NO_ERR)
    {
        if ((egressPktCtrlDataPtr->egressAddrSubstEnable != TXC_FALSE) &&
            (egressPktCtrlDataPtr->egressAddrSubstEnable != TXC_TRUE))
        {
            egressPktCtrlDataPtr->egressAddrSubstEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((egressPktCtrlDataPtr->egressPauseFrmDiscEnable != TXC_FALSE) &&
            (egressPktCtrlDataPtr->egressPauseFrmDiscEnable != TXC_TRUE))
        {
            egressPktCtrlDataPtr->egressPauseFrmDiscEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;

        }

        if ((egressPktCtrlDataPtr->egressStripEnable != TXC_FALSE) &&
            (egressPktCtrlDataPtr->egressStripEnable != TXC_TRUE))
        {
            egressPktCtrlDataPtr->egressStripEnable = TXC_BOOL_INVALID;
            error = TXC_INVALID_PARM_ERR;
        }
    }
    /* return the error code */
    return error;
}


/************************************************************************************/
/*||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
/************************************************************************************
   FUNCTION:  ENVOY_GetEgressPacketCtrlValid

   DESCRIPTION: This function validates the TXC_ENVOY_EgressPacketCtrlGet

   INPUTS:  Same as TXC_ENVOY_EgressPacketCtrlGet

   RETURNS:  TXC_NO_ERR or an appropriate specific error code listed in
   appendix.

   CAVEATS:  None.

   REVISION HISTORY:

    Rev #     Date          Author                Description
   -----    -------      ------------         ----------------------
   0.5.0    6/03/04      F. Giannella         Initial release (beta)
*--------------------------------------------------------------------------*/
TXC_U16BIT  ENVOY_GetEgressPacketCtrlValid (TXC_U16BIT handle, TXC_U16BIT port)
{
    TXC_U16BIT error;

    error = ENVOY_VerifyGetPktCtrlHandleAndPort (handle, port);

    /* return the error code */
    return error;
}



/****************************************************************************
 **                             Static Function                            **
 ****************************************************************************/

/* check port and handle, in that order for valid range. 
    ON THE SET FUNCTIONS. Set function allow the port == 0xFFFF.
    Overwrite the last error, so the hierarchy is correctly followed. */

static TXC_U16BIT ENVOY_VerifySetPktCtrlHandleAndPort(TXC_U16BIT handle, 
                  TXC_U16BIT port)
{
    TXC_U16BIT maxPorts, error;

    /* first, check the handle. This may return invalid handle or driver not created */
    error = ENVOY_DbVerifyHandle (handle);

    /* if NO handle error, make sure the port value is correct, 
        allow for the all ports (0xFFFF) */
    if (error == TXC_NO_ERR)
    {
        maxPorts = ENVOY_DbGetMaxMacPorts (handle);
        if (port >= maxPorts)
        {
            if (port != ENVOY_MAC_ALL_PORTS)
                error = TXC_INVALID_CHANNEL_ERR;
        }
    }

    /* return the error */
    return error;
}




/* check port, then handle, in that order for valid range. ON THE GET
    Overwrite the last error, so the hierarchy is correctly followed. */

static TXC_U16BIT ENVOY_VerifyGetPktCtrlHandleAndPort(TXC_U16BIT handle, 
                  TXC_U16BIT port)
{
    /* TXC_U16BIT maxTerms, maxPorts, error; */
    TXC_U16BIT maxPorts, error;

    /* first, check the handle. This may return invalid handle or driver not created */
    error = ENVOY_DbVerifyHandle (handle);

    /* if NO handle error, make sure the port value is correct, 
        do not allow for the all ports (0xFFFF) */
    if (error == TXC_NO_ERR)
    {
        maxPorts = ENVOY_DbGetMaxMacPorts (handle);
        if (port >= maxPorts)
            error = TXC_INVALID_CHANNEL_ERR;
    }

    /* return the error */
    return error;

}


/****************************************************************************
 **                              End of Module                             **
 ****************************************************************************/

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