pivlneep.c

VIA VT6524 8口网管交换机源码

/*
 * 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:    pivlneep.c
 *
 * Purpose: VLAN related EEPROM accessing functions
 *
 * Author:  Tevin Chen
 *
 * Date:    Jan 08, 2002
 *
 * Functions:
 *
 * Revision History:
 *
 */


#include "piportmp.h"
#include "pieeprom.h"
#include "pivlneep.h"
#include "swmsg.h"




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

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

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

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

/*---------------------  Static Macros  -----------------------------*/
#define s_vGetEntryId(byTblPtr, pwId) PIEEP_vGetCfgFromEep(PIVLNEEP_byEntryEepAddr(byTblPtr), SIZE_OF_VID, (PBYTE)pwId)

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

/*---------------------  Export Functions  --------------------------*/
// Search entry in table
// If search successed, return EEPROM table entry id; else return ENTRY_END_FLAG
BYTE PIVLNEEP_bySearchEntry (UINT16 wEntryId) DIRECT_FUNTYPE_REENT
{
    UINT8   si;
    UINT16  wId;

    // Find where in EEPROM the current entry is
    for (si = 0; si < SWITCH_VLAN_GRP_NUM; si++) {
        // Get current entry id and compare with the target one
        s_vGetEntryId(si, &wId);

        // If HIT => return current location
        if ( (wId != 0) && (wId == wEntryId) )
            return si;
        }

    // If entry not exist, return ENTRY_END_FLAG
    return ENTRY_END_FLAG;
}


BYTE PIVLNEEP_byInsEntry (SVlanGrp *pSEntry) DIRECT_FUNTYPE_REENT
{
    UINT16  wId;
    UINT8   byTblPtr;

    // Check if entry already exist
    if (PIVLNEEP_bySearchEntry(pSEntry->wVid) != ENTRY_END_FLAG)
         return VLAN_OP_GRP_EXIST;

    // Search where in eeprom to insert the entry
    for (byTblPtr = 0; byTblPtr < SWITCH_VLAN_GRP_NUM; byTblPtr++) {
        s_vGetEntryId(byTblPtr, &wId);
        if (wId == 0)
            break;
    }

    // Check if table full
    if (byTblPtr == SWITCH_VLAN_GRP_NUM)
        return VLAN_OP_NO_EMPTY_GRP;

    // Insert the target entry into EEPROM and update checksum
    PIEEP_vSetCfgIntoEep( (PBYTE)pSEntry, PIVLNEEP_byEntryEepAddr(byTblPtr), EEP_SIZE_VLAN_TBL_ENTRY );
    PIEEP_vUpdateChecksum();
    return OP_OK;
}


void PIVLNEEP_vDelEntry (UINT8 byTblPtr) DIRECT_FUNTYPE_REENT
{
    UINT16  wBuf = 0;

    PIEEP_vSetCfgIntoEep( (PBYTE)&wBuf, PIVLNEEP_byEntryEepAddr(byTblPtr), SIZE_OF_VID );
    PIEEP_vUpdateChecksum();
}


void PIVLNEEP_vEditEntry (UINT8 byTblPtr, SVlanGrp *pSEntry) DIRECT_FUNTYPE_REENT
{
    PIEEP_vSetCfgIntoEep( (PBYTE)pSEntry, PIVLNEEP_byEntryEepAddr(byTblPtr), EEP_SIZE_VLAN_TBL_ENTRY );
    PIEEP_vUpdateChecksum();
}


void PIVLNEEP_vStatisTblInfo (SVlanPageCfg *pSPageBuf) DIRECT_FUNTYPE_REENT
{
    UINT8   byTblPtr, si;
    UINT16  wVid;

    // Prepare for table info statistics
    pSPageBuf->byValidEntryNum = 0;

    // Add entry id into valid group list one by one
    for (byTblPtr = 0; byTblPtr < SWITCH_VLAN_GRP_NUM; byTblPtr++) {
        s_vGetEntryId(byTblPtr, &wVid);
        if (wVid > 0) {
            pSPageBuf->byValidEntryNum++;
            for (si = pSPageBuf->byValidEntryNum-1; si > 0; si--) {
                if (wVid < pSPageBuf->awValidGrpIdList[si-1])
                    pSPageBuf->awValidGrpIdList[si] = pSPageBuf->awValidGrpIdList[si-1];
                else
                    break;
            }
            pSPageBuf->awValidGrpIdList[si] = wVid;
        }
    }
}