buslogic.c

Linux Kernel 2.6.9 for OMAP1710

	if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
	    != sizeof(ExtendedSetupInformation))
		Result = false;
	/*
	   Provide tracing information if requested and return.
	 */
	if (BusLogic_GlobalOptions.TraceProbe)
		BusLogic_Notice("BusLogic_Check(0x%X): MultiMaster %s\n", HostAdapter, HostAdapter->IO_Address, (Result ? "Found" : "Not Found"));
	return Result;
}


/*
  BusLogic_ReadHostAdapterConfiguration reads the Configuration Information
  from Host Adapter and initializes the Host Adapter structure.
*/

static boolean __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter
							    *HostAdapter)
{
	struct BusLogic_BoardID BoardID;
	struct BusLogic_Configuration Configuration;
	struct BusLogic_SetupInformation SetupInformation;
	struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
	unsigned char HostAdapterModelNumber[5];
	unsigned char FirmwareVersion3rdDigit;
	unsigned char FirmwareVersionLetter;
	struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation;
	struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
	struct BusLogic_AutoSCSIData AutoSCSIData;
	union BusLogic_GeometryRegister GeometryRegister;
	unsigned char RequestedReplyLength;
	unsigned char *TargetPointer, Character;
	int TargetID, i;
	/*
	   Configuration Information for FlashPoint Host Adapters is provided in the
	   FlashPoint_Info structure by the FlashPoint SCCB Manager's Probe Function.
	   Initialize fields in the Host Adapter structure from the FlashPoint_Info
	   structure.
	 */
	if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
		struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
		TargetPointer = HostAdapter->ModelName;
		*TargetPointer++ = 'B';
		*TargetPointer++ = 'T';
		*TargetPointer++ = '-';
		for (i = 0; i < sizeof(FlashPointInfo->ModelNumber); i++)
			*TargetPointer++ = FlashPointInfo->ModelNumber[i];
		*TargetPointer++ = '\0';
		strcpy(HostAdapter->FirmwareVersion, FlashPoint_FirmwareVersion);
		HostAdapter->SCSI_ID = FlashPointInfo->SCSI_ID;
		HostAdapter->ExtendedTranslationEnabled = FlashPointInfo->ExtendedTranslationEnabled;
		HostAdapter->ParityCheckingEnabled = FlashPointInfo->ParityCheckingEnabled;
		HostAdapter->BusResetEnabled = !FlashPointInfo->HostSoftReset;
		HostAdapter->LevelSensitiveInterrupt = true;
		HostAdapter->HostWideSCSI = FlashPointInfo->HostWideSCSI;
		HostAdapter->HostDifferentialSCSI = false;
		HostAdapter->HostSupportsSCAM = true;
		HostAdapter->HostUltraSCSI = true;
		HostAdapter->ExtendedLUNSupport = true;
		HostAdapter->TerminationInfoValid = true;
		HostAdapter->LowByteTerminated = FlashPointInfo->LowByteTerminated;
		HostAdapter->HighByteTerminated = FlashPointInfo->HighByteTerminated;
		HostAdapter->SCAM_Enabled = FlashPointInfo->SCAM_Enabled;
		HostAdapter->SCAM_Level2 = FlashPointInfo->SCAM_Level2;
		HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
		HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
		HostAdapter->MaxLogicalUnits = 32;
		HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize;
		HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize;
		HostAdapter->DriverQueueDepth = 255;
		HostAdapter->HostAdapterQueueDepth = HostAdapter->DriverQueueDepth;
		HostAdapter->SynchronousPermitted = FlashPointInfo->SynchronousPermitted;
		HostAdapter->FastPermitted = FlashPointInfo->FastPermitted;
		HostAdapter->UltraPermitted = FlashPointInfo->UltraPermitted;
		HostAdapter->WidePermitted = FlashPointInfo->WidePermitted;
		HostAdapter->DisconnectPermitted = FlashPointInfo->DisconnectPermitted;
		HostAdapter->TaggedQueuingPermitted = 0xFFFF;
		goto Common;
	}
	/*
	   Issue the Inquire Board ID command.
	 */
	if (BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)) != sizeof(BoardID))
		return BusLogic_Failure(HostAdapter, "INQUIRE BOARD ID");
	/*
	   Issue the Inquire Configuration command.
	 */
	if (BusLogic_Command(HostAdapter, BusLogic_InquireConfiguration, NULL, 0, &Configuration, sizeof(Configuration))
	    != sizeof(Configuration))
		return BusLogic_Failure(HostAdapter, "INQUIRE CONFIGURATION");
	/*
	   Issue the Inquire Setup Information command.
	 */
	RequestedReplyLength = sizeof(SetupInformation);
	if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation))
	    != sizeof(SetupInformation))
		return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION");
	/*
	   Issue the Inquire Extended Setup Information command.
	 */
	RequestedReplyLength = sizeof(ExtendedSetupInformation);
	if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
	    != sizeof(ExtendedSetupInformation))
		return BusLogic_Failure(HostAdapter, "INQUIRE EXTENDED SETUP INFORMATION");
	/*
	   Issue the Inquire Firmware Version 3rd Digit command.
	 */
	FirmwareVersion3rdDigit = '\0';
	if (BoardID.FirmwareVersion1stDigit > '0')
		if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersion3rdDigit, NULL, 0, &FirmwareVersion3rdDigit, sizeof(FirmwareVersion3rdDigit))
		    != sizeof(FirmwareVersion3rdDigit))
			return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE 3RD DIGIT");
	/*
	   Issue the Inquire Host Adapter Model Number command.
	 */
	if (ExtendedSetupInformation.BusType == 'A' && BoardID.FirmwareVersion1stDigit == '2')
		/* BusLogic BT-542B ISA 2.xx */
		strcpy(HostAdapterModelNumber, "542B");
	else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '2' && (BoardID.FirmwareVersion2ndDigit <= '1' || (BoardID.FirmwareVersion2ndDigit == '2' && FirmwareVersion3rdDigit == '0')))
		/* BusLogic BT-742A EISA 2.1x or 2.20 */
		strcpy(HostAdapterModelNumber, "742A");
	else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '0')
		/* AMI FastDisk EISA Series 441 0.x */
		strcpy(HostAdapterModelNumber, "747A");
	else {
		RequestedReplyLength = sizeof(HostAdapterModelNumber);
		if (BusLogic_Command(HostAdapter, BusLogic_InquireHostAdapterModelNumber, &RequestedReplyLength, sizeof(RequestedReplyLength), &HostAdapterModelNumber, sizeof(HostAdapterModelNumber))
		    != sizeof(HostAdapterModelNumber))
			return BusLogic_Failure(HostAdapter, "INQUIRE HOST ADAPTER MODEL NUMBER");
	}
	/*
	   BusLogic MultiMaster Host Adapters can be identified by their model number
	   and the major version number of their firmware as follows:

	   5.xx       BusLogic "W" Series Host Adapters:
	   BT-948/958/958D
	   4.xx       BusLogic "C" Series Host Adapters:
	   BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
	   3.xx       BusLogic "S" Series Host Adapters:
	   BT-747S/747D/757S/757D/445S/545S/542D
	   BT-542B/742A (revision H)
	   2.xx       BusLogic "A" Series Host Adapters:
	   BT-542B/742A (revision G and below)
	   0.xx       AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
	 */
	/*
	   Save the Model Name and Host Adapter Name in the Host Adapter structure.
	 */
	TargetPointer = HostAdapter->ModelName;
	*TargetPointer++ = 'B';
	*TargetPointer++ = 'T';
	*TargetPointer++ = '-';
	for (i = 0; i < sizeof(HostAdapterModelNumber); i++) {
		Character = HostAdapterModelNumber[i];
		if (Character == ' ' || Character == '\0')
			break;
		*TargetPointer++ = Character;
	}
	*TargetPointer++ = '\0';
	/*
	   Save the Firmware Version in the Host Adapter structure.
	 */
	TargetPointer = HostAdapter->FirmwareVersion;
	*TargetPointer++ = BoardID.FirmwareVersion1stDigit;
	*TargetPointer++ = '.';
	*TargetPointer++ = BoardID.FirmwareVersion2ndDigit;
	if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0')
		*TargetPointer++ = FirmwareVersion3rdDigit;
	*TargetPointer = '\0';
	/*
	   Issue the Inquire Firmware Version Letter command.
	 */
	if (strcmp(HostAdapter->FirmwareVersion, "3.3") >= 0) {
		if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersionLetter, NULL, 0, &FirmwareVersionLetter, sizeof(FirmwareVersionLetter))
		    != sizeof(FirmwareVersionLetter))
			return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE VERSION LETTER");
		if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0')
			*TargetPointer++ = FirmwareVersionLetter;
		*TargetPointer = '\0';
	}
	/*
	   Save the Host Adapter SCSI ID in the Host Adapter structure.
	 */
	HostAdapter->SCSI_ID = Configuration.HostAdapterID;
	/*
	   Determine the Bus Type and save it in the Host Adapter structure, determine
	   and save the IRQ Channel if necessary, and determine and save the DMA
	   Channel for ISA Host Adapters.
	 */
	HostAdapter->HostAdapterBusType = BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4'];
	if (HostAdapter->IRQ_Channel == 0) {
		if (Configuration.IRQ_Channel9)
			HostAdapter->IRQ_Channel = 9;
		else if (Configuration.IRQ_Channel10)
			HostAdapter->IRQ_Channel = 10;
		else if (Configuration.IRQ_Channel11)
			HostAdapter->IRQ_Channel = 11;
		else if (Configuration.IRQ_Channel12)
			HostAdapter->IRQ_Channel = 12;
		else if (Configuration.IRQ_Channel14)
			HostAdapter->IRQ_Channel = 14;
		else if (Configuration.IRQ_Channel15)
			HostAdapter->IRQ_Channel = 15;
	}
	if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus) {
		if (Configuration.DMA_Channel5)
			HostAdapter->DMA_Channel = 5;
		else if (Configuration.DMA_Channel6)
			HostAdapter->DMA_Channel = 6;
		else if (Configuration.DMA_Channel7)
			HostAdapter->DMA_Channel = 7;
	}
	/*
	   Determine whether Extended Translation is enabled and save it in
	   the Host Adapter structure.
	 */
	GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
	HostAdapter->ExtendedTranslationEnabled = GeometryRegister.gr.ExtendedTranslationEnabled;
	/*
	   Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
	   SCSI flag, Differential SCSI flag, SCAM Supported flag, and
	   Ultra SCSI flag in the Host Adapter structure.
	 */
	HostAdapter->HostAdapterScatterGatherLimit = ExtendedSetupInformation.ScatterGatherLimit;
	HostAdapter->DriverScatterGatherLimit = HostAdapter->HostAdapterScatterGatherLimit;
	if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit)
		HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
	if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt)
		HostAdapter->LevelSensitiveInterrupt = true;
	HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI;
	HostAdapter->HostDifferentialSCSI = ExtendedSetupInformation.HostDifferentialSCSI;
	HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM;
	HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI;
	/*
	   Determine whether Extended LUN Format CCBs are supported and save the
	   information in the Host Adapter structure.
	 */
	if (HostAdapter->FirmwareVersion[0] == '5' || (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI))
		HostAdapter->ExtendedLUNSupport = true;
	/*
	   Issue the Inquire PCI Host Adapter Information command to read the
	   Termination Information from "W" series MultiMaster Host Adapters.
	 */
	if (HostAdapter->FirmwareVersion[0] == '5') {
		if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation))
		    != sizeof(PCIHostAdapterInformation))
			return BusLogic_Failure(HostAdapter, "INQUIRE PCI HOST ADAPTER INFORMATION");
		/*
		   Save the Termination Information in the Host Adapter structure.
		 */
		if (PCIHostAdapterInformation.GenericInfoValid) {
			HostAdapter->TerminationInfoValid = true;
			HostAdapter->LowByteTerminated = PCIHostAdapterInformation.LowByteTerminated;
			HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated;
		}
	}
	/*
	   Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data
	   from "W" and "C" series MultiMaster Host Adapters.
	 */
	if (HostAdapter->FirmwareVersion[0] >= '4') {
		FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset;
		FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData);
		if (BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIData, sizeof(AutoSCSIData))
		    != sizeof(AutoSCSIData))
			return BusLogic_Failure(HostAdapter, "FETCH HOST ADAPTER LOCAL RAM");
		/*
		   Save the Parity Checking Enabled, Bus Reset Enabled, and Termination
		   Information in the Host Adapter structure.
		 */
		HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled;
		HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled;
		if (HostAdapter->FirmwareVersion[0] == '4') {
			HostAdapter->TerminationInfoValid = true;
			HostAdapter->LowByteTerminated = AutoSCSIData.LowByteTerminated;
			HostAdapter->HighByteTerminated = AutoSCSIData.HighByteTerminated;
		}
		/*
		   Save the Wide Permitted, Fast Permitted, Synchronous Permitted,
		   Disconnect Permitted, Ultra Permitted, and SCAM Information in the
		   Host Adapter structure.
		 */
		HostAdapter->WidePermitted = AutoSCSIData.WidePermitted;
		HostAdapter->FastPermitted = AutoSCSIData.FastPermitted;
		HostAdapter->SynchronousPermitted = AutoSCSIData.SynchronousPermitted;
		HostAdapter->DisconnectPermitted = AutoSCSIData.DisconnectPermitted;
		if (HostAdapter->HostUltraSCSI)
			HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted;
		if (HostAdapter->HostSupportsSCAM) {
			HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled;
			HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2;
		}
	}
	/*
	   Initialize fields in the Host Adapter structure for "S" and "A" series
	   MultiMaster Host Adapters.
	 */
	if (HostAdapter->FirmwareVersion[0] < '4') {
		if (SetupInformation.SynchronousInitiationEnabled) {
			HostAdapter->SynchronousPermitted = 0xFF;
			if (HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus) {
				if (ExtendedSetupInformation.Misc.FastOnEISA)
					HostAdapter->FastPermitted = 0xFF;
				if (strcmp(HostAdapter->ModelName, "BT-757") == 0)
					HostAdapter->WidePermitted = 0xFF;
			}
		}
		HostAdapter->DisconnectPermitted = 0xFF;
		HostAdapter->ParityCheckingEnabled = SetupInformation.ParityCheckingEnabled;
		HostAdapter->BusResetEnabled = true;
	}
	/*
	   Dete