swmisc.c

来自「vt6528芯片交换机API函数和文档运行程序」· C语言 代码 · 共 90 行

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "as is"
 * and any express or implied warranties, including, but not limited to, the
 * implied warranties of merchantability and fitness for a particular purpose
 * are disclaimed. In no event shall VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages.
 *
 *
 * File:    swmisc.c
 *
 * Purpose: Switch misc hardware accessing functions
 *
 * Author:  Tevin Chen
 *          Henry Lin
 *
 * Date:    Jan 08, 2002
 *          May 25, 2005
 *
 * Functions:
 *
 * Revision History:
 *
 */


#if !defined(__SWCFG_H__)
#include "swcfg.h"
#endif
#if !defined(__SWITCH_H__)
#include "switch.h"
#endif
#if !defined(__SWREG_H__)
#include "swreg.h"
#endif




/*---------------------  Static Definitions  ------------------------*/

/*---------------------  Static Types  ------------------------------*/

/*---------------------  Static Macros  -----------------------------*/

/*---------------------  Static Classes  ----------------------------*/

/*---------------------  Static Variables  --------------------------*/

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

/*---------------------  Export Variables  --------------------------*/




void SWMISC_vSetCollRetryEn (BOOL bRetry)
{

    if (bRetry)
        SWREG_vBitsOffU8(INITCTL_BASIC_FUNC_CFG, FUNC_CFG_COL_RETRY_48);
    else
        SWREG_vBitsOnU8(INITCTL_BASIC_FUNC_CFG, FUNC_CFG_COL_RETRY_48);
}


//
// this subroutine is to prevent deadlock of mutual flow-control
//
void SWMISC_vDeadlockPrevention(void)
{
    UINT32  dwCfg;


    SWREG_vReadU32(INITCTL_BASIC_FUNC_CFG, &dwCfg);
    dwCfg |= (FUNC_CFG_DEADLOCK_PREVENTION_EN + FUNC_CFG_DEADLOCK_DISREGARD_FC);
    SWREG_vWriteU32(INITCTL_BASIC_FUNC_CFG, dwCfg);
}