VOID GMACvSetPacketFilter(DWORD dwIoBase, WORD wFilterType)
{
BYTE byOldRCR;
BYTE byNewRCR = 0;
BYTE byOrgCAMCR, byData;
/* modify CAMCR to select MAR regs */
VNSvInPortB(dwIoBase + MAC_REG_CAMCR, &byOrgCAMCR);
byData = (BYTE)(byOrgCAMCR & ~(CAMCR_PS1|CAMCR_PS0));
VNSvOutPortB(dwIoBase + MAC_REG_CAMCR, byData);
/* if only in DIRECTED mode, multicast-address will set to zero, */
/* but if other mode exist (e.g. PROMISCUOUS), multicast-address */
/* will be open */
if (BITbIsBitOn(wFilterType, PKT_TYPE_DIRECTED)) {
/* set multicast address to accept none */
VNSvOutPortD(dwIoBase + MAC_REG_MAR, 0L);
/* PCAvDelayByIO(1); */
VNSvOutPortD(dwIoBase + MAC_REG_MAR + sizeof(DWORD), 0L);
/* PCAvDelayByIO(1); */
}
if (BITbIsAnyBitsOn(wFilterType, PKT_TYPE_PROMISCUOUS | PKT_TYPE_ALL_MULTICAST)) {
/* set multicast address to accept all */
VNSvOutPortD(dwIoBase + MAC_REG_MAR, 0xFFFFFFFFL);
/* PCAvDelayByIO(1); */
VNSvOutPortD(dwIoBase + MAC_REG_MAR + sizeof(DWORD), 0xFFFFFFFFL);
/* PCAvDelayByIO(1); */
}
/* restore to original CAMCR */
VNSvOutPortB(dwIoBase + MAC_REG_CAMCR, byOrgCAMCR);
if (BITbIsBitOn(wFilterType, PKT_TYPE_PROMISCUOUS))
byNewRCR |= (RCR_PROM | RCR_AM | RCR_AB);
if (BITbIsAnyBitsOn(wFilterType, PKT_TYPE_MULTICAST | PKT_TYPE_ALL_MULTICAST))
byNewRCR |= RCR_AM;
if (BITbIsBitOn(wFilterType, PKT_TYPE_BROADCAST))
byNewRCR |= RCR_AB;
if (BITbIsBitOn(wFilterType, PKT_TYPE_RUNT))
byNewRCR |= RCR_AR;
if (BITbIsBitOn(wFilterType, PKT_TYPE_ERROR))
byNewRCR |= RCR_SEP;
VNSvInPortB(dwIoBase + MAC_REG_RCR, &byOldRCR);
if (byNewRCR != (byOldRCR & 0x1F)) {
/* Modify the Receive Command Register */
byNewRCR |= (BYTE)(byOldRCR & 0xE0);
VNSvOutPortB(dwIoBase + MAC_REG_RCR, byNewRCR);
}
}
/*
* Description: Read a byte from EEPROM, by MAC I2C
*
* Parameters:
* In:
* dwIoBase - I/O base address
* byContntOffset - address of EEPROM
* Out:
* none
*
* Return Value: data read
*
*/
BYTE SROMbyReadEmbedded(DWORD_PTR dwIoBase, BYTE byContntOffset)
{
WORD wDelay, wNoACK;
BYTE byWait;
BYTE byData;
BYTE byOrg;
byData = 0xFF;
VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
// turn off hardware retry for getting NACK
VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
VNSvOutPortB(dwIoBase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
VNSvOutPortB(dwIoBase + MAC_REG_I2MTGAD, byContntOffset);
// issue read command
VNSvOutPortB(dwIoBase + MAC_REG_I2MCSR, I2MCSR_EEMR);
// wait DONE be set
for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
if (BITbIsAnyBitsOn(byWait, (I2MCSR_DONE | I2MCSR_NACK)))
break;
PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
}
if ((wDelay < W_MAX_TIMEOUT) &&
(BITbIsBitOff(byWait, I2MCSR_NACK))) {
break;
}
}
VNSvInPortB(dwIoBase + MAC_REG_I2MDIPT, &byData);
VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
return byData;
}
BOOL GMACbIsInLoopbackMode(DWORD dwIoBase)
{
BYTE byOrgValue;
VNSvInPortB(dwIoBase + MAC_REG_TCR, &byOrgValue);
if (BITbIsAnyBitsOn(byOrgValue, TCR_LB1 | TCR_LB0))
return TRUE;
return FALSE;
}
