errorhandling.h

摩托罗拉Motolola公司网络处理器C3的示范代码.实现了ATM的AAL2层交换功能.想了解网络处理器的可以

/*
 *  Copyright (c) 2000, 2001, 2002 C-Port Corporation, a Motorola Company
 *  All Rights Reserved
 *
 *  The information contained in this file is C-Port Corporation confidential and proprietary.
 *  Any reproduction, use or disclosure, in whole or in part, of this
 *  program, including any attempt to obtain a human-readable version of this
 *  program, without the express, prior written consent of C-Port
 *  Corporation or Motorola Incorporated is strictly prohibited.
 */


/*
 *  Function:           qsErrorPoll()
 *
 *  Description:        Return true if an error occurred on the last read/write operation
 *
 *  Arguments:          rdwr (IN) - indicates either the read or write operation
 *                                    values are QS_ERROR_WRITE or QS_ERROR_READ
 *
 *  Returns:            true if an error occurred on the last read/write operation
 */
SINLINE Boolean
qsErrorPoll(int32u rdwr)
{
    return ((dcpCregs.cpMode & rdwr) == rdwr);
}


/*
 *  Function:           bsErrorWritePoll()
 *
 *  Description:        Retrieve the completion code of the last completed operation
 *                      directly from the hardware registers.  This call assumes that
 *                      the application is making buffer write calls from only one
 *                      context.  If multiple contexts are making buffer write calls,
 *                      then this call is inappropriate.  See bsErrorWritePollMultiContext()
 *
 *  Arguments:          none
 *
 *  Returns:            Boolean, true if there was an error
 */

SINLINE Boolean
bsErrorWritePoll()
{
    return (BitIsSet(dcpCregs.wrCB[0].wrCB_Ctl, RDWRCB_CTL_ERROR));
}