buslogic.h

linux 内核源代码

	unsigned int:24;	/* Bytes 4-6 */
	enum BusLogic_ActionCode ActionCode;	/* Byte 7 */
};

/*
  Define the 32 Bit Mode Incoming Mailbox structure.
*/

struct BusLogic_IncomingMailbox {
	u32 CCB;		/* Bytes 0-3 */
	enum BusLogic_HostAdapterStatus HostAdapterStatus;	/* Byte 4 */
	enum BusLogic_TargetDeviceStatus TargetDeviceStatus;	/* Byte 5 */
	unsigned char:8;	/* Byte 6 */
	enum BusLogic_CompletionCode CompletionCode;	/* Byte 7 */
};


/*
  Define the BusLogic Driver Options structure.
*/

struct BusLogic_DriverOptions {
	unsigned short TaggedQueuingPermitted;
	unsigned short TaggedQueuingPermittedMask;
	unsigned short BusSettleTime;
	struct BusLogic_LocalOptions LocalOptions;
	unsigned char CommonQueueDepth;
	unsigned char QueueDepth[BusLogic_MaxTargetDevices];
};

/*
  Define the Host Adapter Target Flags structure.
*/

struct BusLogic_TargetFlags {
	bool TargetExists:1;
	bool TaggedQueuingSupported:1;
	bool WideTransfersSupported:1;
	bool TaggedQueuingActive:1;
	bool WideTransfersActive:1;
	bool CommandSuccessfulFlag:1;
	bool TargetInfoReported:1;
};

/*
  Define the Host Adapter Target Statistics structure.
*/

#define BusLogic_SizeBuckets			10

typedef unsigned int BusLogic_CommandSizeBuckets_T[BusLogic_SizeBuckets];

struct BusLogic_TargetStatistics {
	unsigned int CommandsAttempted;
	unsigned int CommandsCompleted;
	unsigned int ReadCommands;
	unsigned int WriteCommands;
	struct BusLogic_ByteCounter TotalBytesRead;
	struct BusLogic_ByteCounter TotalBytesWritten;
	BusLogic_CommandSizeBuckets_T ReadCommandSizeBuckets;
	BusLogic_CommandSizeBuckets_T WriteCommandSizeBuckets;
	unsigned short CommandAbortsRequested;
	unsigned short CommandAbortsAttempted;
	unsigned short CommandAbortsCompleted;
	unsigned short BusDeviceResetsRequested;
	unsigned short BusDeviceResetsAttempted;
	unsigned short BusDeviceResetsCompleted;
	unsigned short HostAdapterResetsRequested;
	unsigned short HostAdapterResetsAttempted;
	unsigned short HostAdapterResetsCompleted;
};

/*
  Define the FlashPoint Card Handle data type.
*/

#define FlashPoint_BadCardHandle		0xFFFFFFFF

typedef unsigned int FlashPoint_CardHandle_T;


/*
  Define the FlashPoint Information structure.  This structure is defined
  by the FlashPoint SCCB Manager.
*/

struct FlashPoint_Info {
	u32 BaseAddress;	/* Bytes 0-3 */
	bool Present;		/* Byte 4 */
	unsigned char IRQ_Channel;	/* Byte 5 */
	unsigned char SCSI_ID;	/* Byte 6 */
	unsigned char SCSI_LUN;	/* Byte 7 */
	unsigned short FirmwareRevision;	/* Bytes 8-9 */
	unsigned short SynchronousPermitted;	/* Bytes 10-11 */
	unsigned short FastPermitted;	/* Bytes 12-13 */
	unsigned short UltraPermitted;	/* Bytes 14-15 */
	unsigned short DisconnectPermitted;	/* Bytes 16-17 */
	unsigned short WidePermitted;	/* Bytes 18-19 */
	bool ParityCheckingEnabled:1;	/* Byte 20 Bit 0 */
	bool HostWideSCSI:1;		/* Byte 20 Bit 1 */
	bool HostSoftReset:1;		/* Byte 20 Bit 2 */
	bool ExtendedTranslationEnabled:1;	/* Byte 20 Bit 3 */
	bool LowByteTerminated:1;	/* Byte 20 Bit 4 */
	bool HighByteTerminated:1;	/* Byte 20 Bit 5 */
	bool ReportDataUnderrun:1;	/* Byte 20 Bit 6 */
	bool SCAM_Enabled:1;	/* Byte 20 Bit 7 */
	bool SCAM_Level2:1;	/* Byte 21 Bit 0 */
	unsigned char:7;	/* Byte 21 Bits 1-7 */
	unsigned char Family;	/* Byte 22 */
	unsigned char BusType;	/* Byte 23 */
	unsigned char ModelNumber[3];	/* Bytes 24-26 */
	unsigned char RelativeCardNumber;	/* Byte 27 */
	unsigned char Reserved[4];	/* Bytes 28-31 */
	unsigned int OS_Reserved;	/* Bytes 32-35 */
	unsigned char TranslationInfo[4];	/* Bytes 36-39 */
	unsigned int Reserved2[5];	/* Bytes 40-59 */
	unsigned int SecondaryRange;	/* Bytes 60-63 */
};

/*
  Define the BusLogic Driver Host Adapter structure.
*/

struct BusLogic_HostAdapter {
	struct Scsi_Host *SCSI_Host;
	struct pci_dev *PCI_Device;
	enum BusLogic_HostAdapterType HostAdapterType;
	enum BusLogic_HostAdapterBusType HostAdapterBusType;
	unsigned long IO_Address;
	unsigned long PCI_Address;
	unsigned short AddressCount;
	unsigned char HostNumber;
	unsigned char ModelName[9];
	unsigned char FirmwareVersion[6];
	unsigned char FullModelName[18];
	unsigned char Bus;
	unsigned char Device;
	unsigned char IRQ_Channel;
	unsigned char DMA_Channel;
	unsigned char SCSI_ID;
	bool IRQ_ChannelAcquired:1;
	bool DMA_ChannelAcquired:1;
	bool ExtendedTranslationEnabled:1;
	bool ParityCheckingEnabled:1;
	bool BusResetEnabled:1;
	bool LevelSensitiveInterrupt:1;
	bool HostWideSCSI:1;
	bool HostDifferentialSCSI:1;
	bool HostSupportsSCAM:1;
	bool HostUltraSCSI:1;
	bool ExtendedLUNSupport:1;
	bool TerminationInfoValid:1;
	bool LowByteTerminated:1;
	bool HighByteTerminated:1;
	bool BounceBuffersRequired:1;
	bool StrictRoundRobinModeSupport:1;
	bool SCAM_Enabled:1;
	bool SCAM_Level2:1;
	bool HostAdapterInitialized:1;
	bool HostAdapterExternalReset:1;
	bool HostAdapterInternalError:1;
	bool ProcessCompletedCCBsActive;
	volatile bool HostAdapterCommandCompleted;
	unsigned short HostAdapterScatterGatherLimit;
	unsigned short DriverScatterGatherLimit;
	unsigned short MaxTargetDevices;
	unsigned short MaxLogicalUnits;
	unsigned short MailboxCount;
	unsigned short InitialCCBs;
	unsigned short IncrementalCCBs;
	unsigned short AllocatedCCBs;
	unsigned short DriverQueueDepth;
	unsigned short HostAdapterQueueDepth;
	unsigned short UntaggedQueueDepth;
	unsigned short CommonQueueDepth;
	unsigned short BusSettleTime;
	unsigned short SynchronousPermitted;
	unsigned short FastPermitted;
	unsigned short UltraPermitted;
	unsigned short WidePermitted;
	unsigned short DisconnectPermitted;
	unsigned short TaggedQueuingPermitted;
	unsigned short ExternalHostAdapterResets;
	unsigned short HostAdapterInternalErrors;
	unsigned short TargetDeviceCount;
	unsigned short MessageBufferLength;
	u32 BIOS_Address;
	struct BusLogic_DriverOptions *DriverOptions;
	struct FlashPoint_Info FlashPointInfo;
	FlashPoint_CardHandle_T CardHandle;
	struct list_head host_list;
	struct BusLogic_CCB *All_CCBs;
	struct BusLogic_CCB *Free_CCBs;
	struct BusLogic_CCB *FirstCompletedCCB;
	struct BusLogic_CCB *LastCompletedCCB;
	struct BusLogic_CCB *BusDeviceResetPendingCCB[BusLogic_MaxTargetDevices];
	struct BusLogic_TargetFlags TargetFlags[BusLogic_MaxTargetDevices];
	unsigned char QueueDepth[BusLogic_MaxTargetDevices];
	unsigned char SynchronousPeriod[BusLogic_MaxTargetDevices];
	unsigned char SynchronousOffset[BusLogic_MaxTargetDevices];
	unsigned char ActiveCommands[BusLogic_MaxTargetDevices];
	unsigned int CommandsSinceReset[BusLogic_MaxTargetDevices];
	unsigned long LastSequencePoint[BusLogic_MaxTargetDevices];
	unsigned long LastResetAttempted[BusLogic_MaxTargetDevices];
	unsigned long LastResetCompleted[BusLogic_MaxTargetDevices];
	struct BusLogic_OutgoingMailbox *FirstOutgoingMailbox;
	struct BusLogic_OutgoingMailbox *LastOutgoingMailbox;
	struct BusLogic_OutgoingMailbox *NextOutgoingMailbox;
	struct BusLogic_IncomingMailbox *FirstIncomingMailbox;
	struct BusLogic_IncomingMailbox *LastIncomingMailbox;
	struct BusLogic_IncomingMailbox *NextIncomingMailbox;
	struct BusLogic_TargetStatistics TargetStatistics[BusLogic_MaxTargetDevices];
	unsigned char *MailboxSpace;
	dma_addr_t MailboxSpaceHandle;
	unsigned int MailboxSize;
	unsigned long CCB_Offset;
	char MessageBuffer[BusLogic_MessageBufferSize];
};

/*
  Define a structure for the BIOS Disk Parameters.
*/

struct BIOS_DiskParameters {
	int Heads;
	int Sectors;
	int Cylinders;
};

/*
  Define a structure for the SCSI Inquiry command results.
*/

struct SCSI_Inquiry {
	unsigned char PeripheralDeviceType:5;	/* Byte 0 Bits 0-4 */
	unsigned char PeripheralQualifier:3;	/* Byte 0 Bits 5-7 */
	unsigned char DeviceTypeModifier:7;	/* Byte 1 Bits 0-6 */
	bool RMB:1;		/* Byte 1 Bit 7 */
	unsigned char ANSI_ApprovedVersion:3;	/* Byte 2 Bits 0-2 */
	unsigned char ECMA_Version:3;	/* Byte 2 Bits 3-5 */
	unsigned char ISO_Version:2;	/* Byte 2 Bits 6-7 */
	unsigned char ResponseDataFormat:4;	/* Byte 3 Bits 0-3 */
	unsigned char:2;	/* Byte 3 Bits 4-5 */
	bool TrmIOP:1;		/* Byte 3 Bit 6 */
	bool AENC:1;		/* Byte 3 Bit 7 */
	unsigned char AdditionalLength;	/* Byte 4 */
	unsigned char:8;	/* Byte 5 */
	unsigned char:8;	/* Byte 6 */
	bool SftRe:1;		/* Byte 7 Bit 0 */
	bool CmdQue:1;		/* Byte 7 Bit 1 */
	 bool:1;		/* Byte 7 Bit 2 */
	bool Linked:1;		/* Byte 7 Bit 3 */
	bool Sync:1;		/* Byte 7 Bit 4 */
	bool WBus16:1;		/* Byte 7 Bit 5 */
	bool WBus32:1;		/* Byte 7 Bit 6 */
	bool RelAdr:1;		/* Byte 7 Bit 7 */
	unsigned char VendorIdentification[8];	/* Bytes 8-15 */
	unsigned char ProductIdentification[16];	/* Bytes 16-31 */
	unsigned char ProductRevisionLevel[4];	/* Bytes 32-35 */
};


/*
  Define functions to provide an abstraction for reading and writing the
  Host Adapter I/O Registers.
*/

static inline void BusLogic_SCSIBusReset(struct BusLogic_HostAdapter *HostAdapter)
{
	union BusLogic_ControlRegister ControlRegister;
	ControlRegister.All = 0;
	ControlRegister.cr.SCSIBusReset = true;
	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}

static inline void BusLogic_InterruptReset(struct BusLogic_HostAdapter *HostAdapter)
{
	union BusLogic_ControlRegister ControlRegister;
	ControlRegister.All = 0;
	ControlRegister.cr.InterruptReset = true;
	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}

static inline void BusLogic_SoftReset(struct BusLogic_HostAdapter *HostAdapter)
{
	union BusLogic_ControlRegister ControlRegister;
	ControlRegister.All = 0;
	ControlRegister.cr.SoftReset = true;
	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}

static inline void BusLogic_HardReset(struct BusLogic_HostAdapter *HostAdapter)
{
	union BusLogic_ControlRegister ControlRegister;
	ControlRegister.All = 0;
	ControlRegister.cr.HardReset = true;
	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}

static inline unsigned char BusLogic_ReadStatusRegister(struct BusLogic_HostAdapter *HostAdapter)
{
	return inb(HostAdapter->IO_Address + BusLogic_StatusRegisterOffset);
}

static inline void BusLogic_WriteCommandParameterRegister(struct BusLogic_HostAdapter
							  *HostAdapter, unsigned char Value)
{
	outb(Value, HostAdapter->IO_Address + BusLogic_CommandParameterRegisterOffset);
}

static inline unsigned char BusLogic_ReadDataInRegister(struct BusLogic_HostAdapter *HostAdapter)
{
	return inb(HostAdapter->IO_Address + BusLogic_DataInRegisterOffset);
}

static inline unsigned char BusLogic_ReadInterruptRegister(struct BusLogic_HostAdapter *HostAdapter)
{
	return inb(HostAdapter->IO_Address + BusLogic_InterruptRegisterOffset);
}

static inline unsigned char BusLogic_ReadGeometryRegister(struct BusLogic_HostAdapter *HostAdapter)
{
	return inb(HostAdapter->IO_Address + BusLogic_GeometryRegisterOffset);
}

/*
  BusLogic_StartMailboxCommand issues an Execute Mailbox Command, which
  notifies the Host Adapter that an entry has been made in an Outgoing
  Mailbox.
*/

static inline void BusLogic_StartMailboxCommand(struct BusLogic_HostAdapter *HostAdapter)
{
	BusLogic_WriteCommandParameterRegister(HostAdapter, BusLogic_ExecuteMailboxCommand);
}

/*
  BusLogic_Delay waits for Seconds to elapse.
*/

static inline void BusLogic_Delay(int Seconds)
{
	mdelay(1000 * Seconds);
}

/*
  Virtual_to_Bus and Bus_to_Virtual map between Kernel Virtual Addresses
  and PCI/VLB/EISA/ISA Bus Addresses.
*/

static inline u32 Virtual_to_Bus(void *VirtualAddress)
{
	return (u32) virt_to_bus(VirtualAddress);
}

static inline void *Bus_to_Virtual(u32 BusAddress)
{
	return (void *) bus_to_virt(BusAddress);
}

/*
  Virtual_to_32Bit_Virtual maps between Kernel Virtual Addresses and
  32 bit Kernel Virtual Addresses.  This avoids compilation warnings
  on 64 bit architectures.
*/

static inline u32 Virtual_to_32Bit_Virtual(void *VirtualAddress)
{
	return (u32) (unsigned long) VirtualAddress;
}

/*
  BusLogic_IncrementErrorCounter increments Error Counter by 1, stopping at
  65535 rather than wrapping around to 0.
*/

static inline void BusLogic_IncrementErrorCounter(unsigned short *ErrorCounter)
{
	if (*ErrorCounter < 65535)
		(*ErrorCounter)++;
}

/*
  BusLogic_IncrementByteCounter increments Byte Counter by Amount.
*/

static inline void BusLogic_IncrementByteCounter(struct BusLogic_ByteCounter
						 *ByteCounter, unsigned int Amount)
{
	ByteCounter->Units += Amount;
	if (ByteCounter->Units > 999999999) {
		ByteCounter->Units -= 1000000000;
		ByteCounter->Billions++;
	}
}

/*
  BusLogic_IncrementSizeBucket increments the Bucket for Amount.
*/

static inline void BusLogic_IncrementSizeBucket(BusLogic_CommandSizeBuckets_T CommandSizeBuckets, unsigned int Amount)
{
	int Index = 0;
	if (Amount < 8 * 1024) {
		if (Amount < 2 * 1024)
			Index = (Amount < 1 * 1024 ? 0 : 1);
		else
			Index = (Amount < 4 * 1024 ? 2 : 3);
	} else if (Amount < 128 * 1024) {
		if (Amount < 32 * 1024)
			Index = (Amount < 16 * 1024 ? 4 : 5);
		else
			Index = (Amount < 64 * 1024 ? 6 : 7);
	} else
		Index = (Amount < 256 * 1024 ? 8 : 9);
	CommandSizeBuckets[Index]++;
}

/*
  Define the version number of the FlashPoint Firmware (SCCB Manager).
*/

#define FlashPoint_FirmwareVersion		"5.02"

/*
  Define the possible return values from FlashPoint_HandleInterrupt.
*/

#define FlashPoint_NormalInterrupt		0x00
#define FlashPoint_InternalError		0xFE
#define FlashPoint_ExternalBusReset		0xFF

/*
  Define prototypes for the forward referenced BusLogic Driver
  Internal Functions.
*/

static const char *BusLogic_DriverInfo(struct Scsi_Host *);
static int BusLogic_QueueCommand(struct scsi_cmnd *, void (*CompletionRoutine) (struct scsi_cmnd *));
static int BusLogic_BIOSDiskParameters(struct scsi_device *, struct block_device *, sector_t, int *);
static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *, char *, char **, off_t, int, int);
static int BusLogic_SlaveConfigure(struct scsi_device *);
static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *);
static irqreturn_t BusLogic_InterruptHandler(int, void *);
static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *, bool HardReset);
static void BusLogic_Message(enum BusLogic_MessageLevel, char *, struct BusLogic_HostAdapter *, ...);
static int __init BusLogic_Setup(char *);

#endif				/* _BUSLOGIC_H */