piipmeep.c

vt6528芯片交换机API函数和文档运行程序

/*
 * 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:    piipmeep.c
 *
 * Purpose: IGMP related EEPROM accessing functions
 *
 * Author:  Freeya Lin
 *
 * Date:    Dec 18, 2003
 *
 * Functions:
 *
 * Revision History:
 *
 */


#include "piportmp.h"
#include "piipmeep.h"
#include "swmsg.h"
#include "str.h"


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

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

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

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

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

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

/*---------------------  Export Functions  --------------------------*/
// Search entry in table
// If search successed, return EEPROM table entry id; else return ENTRY_END_FLAG
UINT16 PIIPMEEP_wSearchEntry (UINT32 dwIpAddr, UINT16 u16Vid)
{
    UINT32  dwIpAddrTmp = 0;
    UINT16  u16VidTmp = 0, si;
        
    // Find where in EEPROM the current entry is
    for (si = 0; si < SWITCH_IGMP_GRP_NUM; si++) {
        // Get current entry id and compare with the target one
        PIEEP_vGetCfgFromEep(PIIPMEEP_dwEntryEepAddr(si), SIZE_OF_IP_ADDR, (PUINT8)&dwIpAddrTmp);
        PIEEP_vGetCfgFromEep(PIIPMEEP_dwEntryEepAddr(si)+SIZE_OF_IP_ADDR, SIZE_OF_IGMP_VID, (PUINT8)&u16VidTmp);

        // If HIT => return current location
        if ((dwIpAddr == dwIpAddrTmp) && (u16Vid == u16VidTmp) )
            return si;
        }

    // If entry not exist, return UINT16_MAX
    return UINT16_MAX;
}


UINT8 PIIPMEEP_byInsEntry (SIpmEntry *pSIpmTblEntry) //TOCHECK
{
    UINT32  dwIpAddr = 0;
    UINT16  wTblPtr;   
    
    // Check if entry already exist
    if (PIIPMEEP_wSearchEntry(pSIpmTblEntry->dwIpAddr, pSIpmTblEntry->u16Vid) != UINT16_MAX)
         return IGMP_OP_GRP_EXIST;

    // Search where in eeprom to insert the entry
    for (wTblPtr = 0; wTblPtr < SWITCH_IGMP_GRP_NUM; wTblPtr++) {
        PIEEP_vGetCfgFromEep(PIIPMEEP_dwEntryEepAddr(wTblPtr), SIZE_OF_IP_ADDR, (PUINT8)&dwIpAddr);
        if (dwIpAddr == 0)
            break;
    }

    // Check if table full
    if (wTblPtr == SWITCH_IGMP_GRP_NUM)
        return IGMP_OP_NO_EMPTY_GRP;

    // Insert the target entry into EEPROM and update checksum
    PIEEP_vSetCfgIntoEep( (PUINT8)pSIpmTblEntry, PIIPMEEP_dwEntryEepAddr(wTblPtr), EEP_SIZE_IGMP_TBL_ENTRY );
    NVRAM_vUpdateChecksum(EEP_SIZE_DATA_AREA);
    return OP_OK;
}


void PIIPMEEP_vDelEntry (UINT16 wTblPtr)
{
    UINT32  dwBuf = 0;

    PIEEP_vSetCfgIntoEep( (PUINT8)&dwBuf, PIIPMEEP_dwEntryEepAddr(wTblPtr), SIZE_OF_IP_ADDR );
    NVRAM_vUpdateChecksum(EEP_SIZE_DATA_AREA);
}


void PIIPMEEP_vStatisTblInfo (SIGMPPageCfg *pSPageBuf)
{
    UINT32  dwIpAddr = 0;
    UINT16  u16Vid = 0, wTblPtr;
    char    acIpBuff[IP_STRING_LEN+1];
    
    pSPageBuf->wValidEntryNum = 0;
    
    // Add entry id into valid group list one by one
    for (wTblPtr = 0; wTblPtr < SWITCH_IGMP_GRP_NUM; wTblPtr++) {
        PIEEP_vGetCfgFromEep(PIIPMEEP_dwEntryEepAddr(wTblPtr), SIZE_OF_IP_ADDR, (PUINT8)&dwIpAddr);
        if (dwIpAddr != 0) {   //valid entry if (ip addr!=0) in eeprom
            acIpBuff[0] = 0;
            STR_vCvtIpValtoStr(acIpBuff, dwIpAddr);
            STR_iStrcpy(pSPageBuf->astrGrpIpList+pSPageBuf->wValidEntryNum*(IP_STRING_LEN+1), acIpBuff);

            PIEEP_vGetCfgFromEep(PIIPMEEP_dwEntryEepAddr(wTblPtr)+SIZE_OF_IP_ADDR, SIZE_OF_IGMP_VID, (PUINT8)&u16Vid);
            pSPageBuf->awValidGrpIdList[pSPageBuf->wValidEntryNum] = u16Vid;

            pSPageBuf->wValidEntryNum++;
        }
    }
}