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Add code to fill the EEPROM buffer with default values, if no EEPROM

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was found, or if there was a checksum mismatch.
This patch should allow the driver to be used with any AMD 53c974
based SCSI card, or with the AMD SCSI+Ethernet Combo Chip found on
some motherboards.
This commit is contained in:
Stefan Eßer 1996-12-18 01:20:32 +00:00
parent 887819402a
commit dd0f5b33a3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=20615
1 changed files with 22 additions and 1 deletions
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23
sys/pci/tek390.c
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@ -150,6 +150,7 @@ UCHAR DC390_EEpromInDO( USHORT mechnum );
USHORT EEpromGetData1( USHORT mechnum );
void DC390_Prepare( USHORT mechnum, PUCHAR regval, UCHAR EEpromCmd );
void DC390_ReadEEprom( USHORT mechnum, USHORT index );
USHORT DC390_DefaultEEprom( USHORT mechnum, USHORT index );
USHORT DC390_CheckEEpromCheckSum( USHORT MechNum, USHORT index );
USHORT DC390_ToMech( USHORT Mechnum, pcici_t config_id );
@ -1491,6 +1492,26 @@ DC390_ReadEEprom( USHORT mechnum, USHORT index )
}
USHORT
DC390_DefaultEEprom( USHORT mechnum, USHORT index )
{
PUCHAR ptr;
USHORT i;
ptr = (PUCHAR) &eepromBuf[index][0];
bzero (ptr, sizeof eepromBuf[index]);
for(i=0; i<0x40; i++)
{
*ptr = (TAG_QUEUING_|EN_DISCONNECT_|SYNC_NEGO_|PARITY_CHK_);
ptr += 4;
}
ptr[EE_ADAPT_SCSI_ID] = 7;
ptr[EE_MODE2] = (LUN_CHECK|ACTIVE_NEGATION);
ptr[EE_TAG_CMD_NUM] = 4;
return 0;
}
USHORT
DC390_CheckEEpromCheckSum( USHORT MechNum, USHORT index )
{
@ -1505,7 +1526,7 @@ DC390_CheckEEpromCheckSum( USHORT MechNum, USHORT index )
if( wval == 0x1234 )
rc = 0;
else
rc = -1;
rc = DC390_DefaultEEprom( MechNum, index);
return( rc );
}