buslogic.h

讲述linux的初始化过程

#define BusLogic_ControlRegisterOffset		0	/* WO register */
#define BusLogic_StatusRegisterOffset		0	/* RO register */
#define BusLogic_CommandParameterRegisterOffset	1	/* WO register */
#define BusLogic_DataInRegisterOffset		1	/* RO register */
#define BusLogic_InterruptRegisterOffset	2	/* RO register */
#define BusLogic_GeometryRegisterOffset		3	/* RO register */


/*
  Define the structure of the write-only Control Register.
*/

typedef union BusLogic_ControlRegister
{
  unsigned char All;
  struct {
    unsigned char :4;					/* Bits 0-3 */
    boolean SCSIBusReset:1;				/* Bit 4 */
    boolean InterruptReset:1;				/* Bit 5 */
    boolean SoftReset:1;				/* Bit 6 */
    boolean HardReset:1;				/* Bit 7 */
  } Bits;
}
BusLogic_ControlRegister_T;


/*
  Define the structure of the read-only Status Register.
*/

typedef union BusLogic_StatusRegister
{
  unsigned char All;
  struct {
    boolean CommandInvalid:1;				/* Bit 0 */
    boolean Reserved:1;					/* Bit 1 */
    boolean DataInRegisterReady:1;			/* Bit 2 */
    boolean CommandParameterRegisterBusy:1;		/* Bit 3 */
    boolean HostAdapterReady:1;				/* Bit 4 */
    boolean InitializationRequired:1;			/* Bit 5 */
    boolean DiagnosticFailure:1;			/* Bit 6 */
    boolean DiagnosticActive:1;				/* Bit 7 */
  } Bits;
}
BusLogic_StatusRegister_T;


/*
  Define the structure of the read-only Interrupt Register.
*/

typedef union BusLogic_InterruptRegister
{
  unsigned char All;
  struct {
    boolean IncomingMailboxLoaded:1;			/* Bit 0 */
    boolean OutgoingMailboxAvailable:1;			/* Bit 1 */
    boolean CommandComplete:1;				/* Bit 2 */
    boolean ExternalBusReset:1;				/* Bit 3 */
    unsigned char Reserved:3;				/* Bits 4-6 */
    boolean InterruptValid:1;				/* Bit 7 */
  } Bits;
}
BusLogic_InterruptRegister_T;


/*
  Define the structure of the read-only Geometry Register.
*/

typedef union BusLogic_GeometryRegister
{
  unsigned char All;
  struct {
    BusLogic_BIOS_DiskGeometryTranslation_T Drive0Geometry:2; /* Bits 0-1 */
    BusLogic_BIOS_DiskGeometryTranslation_T Drive1Geometry:2; /* Bits 2-3 */
    unsigned char :3;					/* Bits 4-6 */
    boolean ExtendedTranslationEnabled:1;		/* Bit 7 */
  } Bits;
}
BusLogic_GeometryRegister_T;


/*
  Define the BusLogic SCSI Host Adapter Command Register Operation Codes.
*/

typedef enum
{
  BusLogic_TestCommandCompleteInterrupt =	0x00,
  BusLogic_InitializeMailbox =			0x01,
  BusLogic_ExecuteMailboxCommand =		0x02,
  BusLogic_ExecuteBIOSCommand =			0x03,
  BusLogic_InquireBoardID =			0x04,
  BusLogic_EnableOutgoingMailboxAvailableInt =	0x05,
  BusLogic_SetSCSISelectionTimeout =		0x06,
  BusLogic_SetPreemptTimeOnBus =		0x07,
  BusLogic_SetTimeOffBus =			0x08,
  BusLogic_SetBusTransferRate =			0x09,
  BusLogic_InquireInstalledDevicesID0to7 =	0x0A,
  BusLogic_InquireConfiguration =		0x0B,
  BusLogic_EnableTargetMode =			0x0C,
  BusLogic_InquireSetupInformation =		0x0D,
  BusLogic_WriteAdapterLocalRAM =		0x1A,
  BusLogic_ReadAdapterLocalRAM =		0x1B,
  BusLogic_WriteBusMasterChipFIFO =		0x1C,
  BusLogic_ReadBusMasterChipFIFO =		0x1D,
  BusLogic_EchoCommandData =			0x1F,
  BusLogic_HostAdapterDiagnostic =		0x20,
  BusLogic_SetAdapterOptions =			0x21,
  BusLogic_InquireInstalledDevicesID8to15 =	0x23,
  BusLogic_InquireTargetDevices =		0x24,
  BusLogic_DisableHostAdapterInterrupt =	0x25,
  BusLogic_InitializeExtendedMailbox =		0x81,
  BusLogic_ExecuteSCSICommand =			0x83,
  BusLogic_InquireFirmwareVersion3rdDigit =	0x84,
  BusLogic_InquireFirmwareVersionLetter =	0x85,
  BusLogic_InquirePCIHostAdapterInformation =	0x86,
  BusLogic_InquireHostAdapterModelNumber =	0x8B,
  BusLogic_InquireSynchronousPeriod =		0x8C,
  BusLogic_InquireExtendedSetupInformation =	0x8D,
  BusLogic_EnableStrictRoundRobinMode =		0x8F,
  BusLogic_StoreHostAdapterLocalRAM =		0x90,
  BusLogic_FetchHostAdapterLocalRAM =		0x91,
  BusLogic_StoreLocalDataInEEPROM =		0x92,
  BusLogic_UploadAutoSCSICode =			0x94,
  BusLogic_ModifyIOAddress =			0x95,
  BusLogic_SetCCBFormat =			0x96,
  BusLogic_WriteInquiryBuffer =			0x9A,
  BusLogic_ReadInquiryBuffer =			0x9B,
  BusLogic_FlashROMUploadDownload =		0xA7,
  BusLogic_ReadSCAMData =			0xA8,
  BusLogic_WriteSCAMData =			0xA9
}
BusLogic_OperationCode_T;


/*
  Define the Inquire Board ID reply structure.
*/

typedef struct BusLogic_BoardID
{
  unsigned char BoardType;				/* Byte 0 */
  unsigned char CustomFeatures;				/* Byte 1 */
  unsigned char FirmwareVersion1stDigit;		/* Byte 2 */
  unsigned char FirmwareVersion2ndDigit;		/* Byte 3 */
}
BusLogic_BoardID_T;


/*
  Define the Inquire Installed Devices ID 0 to 7 and Inquire Installed
  Devices ID 8 to 15 reply type.  For each Target Device, a byte is returned
  where bit 0 set indicates that Logical Unit 0 exists, bit 1 set indicates
  that Logical Unit 1 exists, and so on.
*/

typedef unsigned char BusLogic_InstalledDevices8_T[8];


/*
  Define the Inquire Target Devices reply type.  Inquire Target Devices only
  tests Logical Unit 0 of each Target Device unlike the Inquire Installed
  Devices commands which test Logical Units 0 - 7.  Two bytes are returned,
  where byte 0 bit 0 set indicates that Target Device 0 exists, and so on.
*/

typedef unsigned short BusLogic_InstalledDevices_T;


/*
  Define the Inquire Configuration reply structure.
*/

typedef struct BusLogic_Configuration
{
  unsigned char :5;					/* Byte 0 Bits 0-4 */
  boolean DMA_Channel5:1;				/* Byte 0 Bit 5 */
  boolean DMA_Channel6:1;				/* Byte 0 Bit 6 */
  boolean DMA_Channel7:1;				/* Byte 0 Bit 7 */
  boolean IRQ_Channel9:1;				/* Byte 1 Bit 0 */
  boolean IRQ_Channel10:1;				/* Byte 1 Bit 1 */
  boolean IRQ_Channel11:1;				/* Byte 1 Bit 2 */
  boolean IRQ_Channel12:1;				/* Byte 1 Bit 3 */
  unsigned char :1;					/* Byte 1 Bit 4 */
  boolean IRQ_Channel14:1;				/* Byte 1 Bit 5 */
  boolean IRQ_Channel15:1;				/* Byte 1 Bit 6 */
  unsigned char :1;					/* Byte 1 Bit 7 */
  unsigned char HostAdapterID:4;			/* Byte 2 Bits 0-3 */
  unsigned char :4;					/* Byte 2 Bits 4-7 */
}
BusLogic_Configuration_T;


/*
  Define the Inquire Setup Information reply structure.
*/

typedef struct BusLogic_SynchronousValue
{
  unsigned char Offset:4;				/* Bits 0-3 */
  unsigned char TransferPeriod:3;			/* Bits 4-6 */
  boolean Synchronous:1;				/* Bit 7 */
}
BusLogic_SynchronousValue_T;

typedef BusLogic_SynchronousValue_T
  BusLogic_SynchronousValues8_T[8];

typedef BusLogic_SynchronousValue_T
  BusLogic_SynchronousValues_T[BusLogic_MaxTargetDevices];

typedef struct BusLogic_SetupInformation
{
  boolean SynchronousInitiationEnabled:1;		/* Byte 0 Bit 0 */
  boolean ParityCheckingEnabled:1;			/* Byte 0 Bit 1 */
  unsigned char :6;					/* Byte 0 Bits 2-7 */
  unsigned char BusTransferRate;			/* Byte 1 */
  unsigned char PreemptTimeOnBus;			/* Byte 2 */
  unsigned char TimeOffBus;				/* Byte 3 */
  unsigned char MailboxCount;				/* Byte 4 */
  unsigned char MailboxAddress[3];			/* Bytes 5-7 */
  BusLogic_SynchronousValues8_T SynchronousValuesID0to7; /* Bytes 8-15 */
  unsigned char DisconnectPermittedID0to7;		/* Byte 16 */
  unsigned char Signature;				/* Byte 17 */
  unsigned char CharacterD;				/* Byte 18 */
  unsigned char HostBusType;				/* Byte 19 */
  unsigned char WideTransfersPermittedID0to7;		/* Byte 20 */
  unsigned char WideTransfersActiveID0to7;		/* Byte 21 */
  BusLogic_SynchronousValues8_T SynchronousValuesID8to15; /* Bytes 22-29 */
  unsigned char DisconnectPermittedID8to15;		/* Byte 30 */
  unsigned char :8;					/* Byte 31 */
  unsigned char WideTransfersPermittedID8to15;		/* Byte 32 */
  unsigned char WideTransfersActiveID8to15;		/* Byte 33 */
}
BusLogic_SetupInformation_T;


/*
  Define the Initialize Extended Mailbox request structure.
*/

typedef struct BusLogic_ExtendedMailboxRequest
{
  unsigned char MailboxCount;				/* Byte 0 */
  BusLogic_BusAddress_T BaseMailboxAddress;		/* Bytes 1-4 */
}
__attribute__ ((packed))
BusLogic_ExtendedMailboxRequest_T;


/*
  Define the Inquire Firmware Version 3rd Digit reply type.
*/

typedef unsigned char BusLogic_FirmwareVersion3rdDigit_T;


/*
  Define the Inquire Firmware Version Letter reply type.
*/

typedef unsigned char BusLogic_FirmwareVersionLetter_T;


/*
  Define the Inquire PCI Host Adapter Information reply type.  The ISA
  Compatible I/O Port values are defined here and are also used with
  the Modify I/O Address command.
*/

typedef enum BusLogic_ISACompatibleIOPort
{
  BusLogic_IO_330 =				0,
  BusLogic_IO_334 =				1,
  BusLogic_IO_230 =				2,
  BusLogic_IO_234 =				3,
  BusLogic_IO_130 =				4,
  BusLogic_IO_134 =				5,
  BusLogic_IO_Disable =				6,
  BusLogic_IO_Disable2 =			7
}
__attribute__ ((packed))
BusLogic_ISACompatibleIOPort_T;

typedef struct BusLogic_PCIHostAdapterInformation
{
  BusLogic_ISACompatibleIOPort_T ISACompatibleIOPort;	/* Byte 0 */
  unsigned char PCIAssignedIRQChannel;			/* Byte 1 */
  boolean LowByteTerminated:1;				/* Byte 2 Bit 0 */
  boolean HighByteTerminated:1;				/* Byte 2 Bit 1 */
  unsigned char :2;					/* Byte 2 Bits 2-3 */
  boolean JP1:1;					/* Byte 2 Bit 4 */
  boolean JP2:1;					/* Byte 2 Bit 5 */
  boolean JP3:1;					/* Byte 2 Bit 6 */
  boolean GenericInfoValid:1;				/* Byte 2 Bit 7 */
  unsigned char :8;					/* Byte 3 */
}
BusLogic_PCIHostAdapterInformation_T;


/*
  Define the Inquire Host Adapter Model Number reply type.
*/

typedef unsigned char BusLogic_HostAdapterModelNumber_T[5];


/*
  Define the Inquire Synchronous Period reply type.  For each Target Device,
  a byte is returned which represents the Synchronous Transfer Period in units
  of 10 nanoseconds.
*/

typedef unsigned char BusLogic_SynchronousPeriod_T[BusLogic_MaxTargetDevices];


/*
  Define the Inquire Extended Setup Information reply structure.
*/

typedef struct BusLogic_ExtendedSetupInformation
{
  unsigned char BusType;				/* Byte 0 */
  unsigned char BIOS_Address;				/* Byte 1 */
  unsigned short ScatterGatherLimit;			/* Bytes 2-3 */
  unsigned char MailboxCount;				/* Byte 4 */
  BusLogic_BusAddress_T BaseMailboxAddress;		/* Bytes 5-8 */
  struct { unsigned char :2;				/* Byte 9 Bits 0-1 */
	   boolean FastOnEISA:1;			/* Byte 9 Bit 2 */
	   unsigned char :3;				/* Byte 9 Bits 3-5 */
	   boolean LevelSensitiveInterrupt:1;		/* Byte 9 Bit 6 */
	   unsigned char :1; } Misc;			/* Byte 9 Bit 7 */
  unsigned char FirmwareRevision[3];			/* Bytes 10-12 */
  boolean HostWideSCSI:1;				/* Byte 13 Bit 0 */
  boolean HostDifferentialSCSI:1;			/* Byte 13 Bit 1 */
  boolean HostSupportsSCAM:1;				/* Byte 13 Bit 2 */
  boolean HostUltraSCSI:1;				/* Byte 13 Bit 3 */
  boolean HostSmartTermination:1;			/* Byte 13 Bit 4 */
  unsigned char :3;					/* Byte 13 Bits 5-7 */
}
__attribute__ ((packed))
BusLogic_ExtendedSetupInformation_T;


/*
  Define the Enable Strict Round Robin Mode request type.
*/

typedef enum BusLogic_RoundRobinModeRequest
{
  BusLogic_AggressiveRoundRobinMode =		0,
  BusLogic_StrictRoundRobinMode =		1
}
__attribute__ ((packed))
BusLogic_RoundRobinModeRequest_T;


/*
  Define the Fetch Host Adapter Local RAM request type.
*/

#define BusLogic_BIOS_BaseOffset		0
#define BusLogic_AutoSCSI_BaseOffset		64

typedef struct BusLogic_FetchHostAdapterLocalRAMRequest
{
  unsigned char ByteOffset;				/* Byte 0 */
  unsigned char ByteCount;				/* Byte 1 */
}
BusLogic_FetchHostAdapterLocalRAMRequest_T;


/*
  Define the Host Adapter Local RAM AutoSCSI structure.
*/

typedef struct BusLogic_AutoSCSIData
{
  unsigned char InternalFactorySignature[2];		/* Bytes 0-1 */
  unsigned char InformationByteCount;			/* Byte 2 */
  unsigned char HostAdapterType[6];			/* Bytes 3-8 */
  unsigned char :8;					/* Byte 9 */
  boolean FloppyEnabled:1;				/* Byte 10 Bit 0 */
  boolean FloppySecondary:1;				/* Byte 10 Bit 1 */
  boolean LevelSensitiveInterrupt:1;			/* Byte 10 Bit 2 */
  unsigned char :2;					/* Byte 10 Bits 3-4 */
  unsigned char SystemRAMAreaForBIOS:3;			/* Byte 10 Bits 5-7 */
  unsigned char DMA_Channel:7;				/* Byte 11 Bits 0-6 */
  boolean DMA_AutoConfiguration:1;			/* Byte 11 Bit 7 */
  unsigned char IRQ_Channel:7;				/* Byte 12 Bits 0-6 */
  boolean IRQ_AutoConfiguration:1;			/* Byte 12 Bit 7 */
  unsigned char DMA_TransferRate;			/* Byte 13 */
  unsigned char SCSI_ID;				/* Byte 14 */
  boolean LowByteTerminated:1;				/* Byte 15 Bit 0 */
  boolean ParityCheckingEnabled:1;			/* Byte 15 Bit 1 */
  boolean HighByteTerminated:1;				/* Byte 15 Bit 2 */
  boolean NoisyCablingEnvironment:1;			/* Byte 15 Bit 3 */
  boolean FastSynchronousNegotiation:1;			/* Byte 15 Bit 4 */
  boolean BusResetEnabled:1;				/* Byte 15 Bit 5 */
  boolean :1;						/* Byte 15 Bit 6 */
  boolean ActiveNegationEnabled:1;			/* Byte 15 Bit 7 */
  unsigned char BusOnDelay;				/* Byte 16 */
  unsigned char BusOffDelay;				/* Byte 17 */
  boolean HostAdapterBIOSEnabled:1;			/* Byte 18 Bit 0 */
  boolean BIOSRedirectionOfINT19Enabled:1;		/* Byte 18 Bit 1 */
  boolean ExtendedTranslationEnabled:1;			/* Byte 18 Bit 2 */
  boolean MapRemovableAsFixedEnabled:1;			/* Byte 18 Bit 3 */
  boolean :1;						/* Byte 18 Bit 4 */
  boolean BIOSSupportsMoreThan2DrivesEnabled:1;		/* Byte 18 Bit 5 */
  boolean BIOSInterruptModeEnabled:1;			/* Byte 18 Bit 6 */
  boolean FlopticalSupportEnabled:1;			/* Byte 19 Bit 7 */
  unsigned short DeviceEnabled;				/* Bytes 19-20 */
  unsigned short WidePermitted;				/* Bytes 21-22 */
  unsigned short FastPermitted;				/* Bytes 23-24 */
  unsigned short SynchronousPermitted;			/* Bytes 25-26 */
  unsigned short DisconnectPermitted;			/* Bytes 27-28 */
  unsigned short SendStartUnitCommand;			/* Bytes 29-30 */
  unsigned short IgnoreInBIOSScan;			/* Bytes 31-32 */
  unsigned char PCIInterruptPin:2;			/* Byte 33 Bits 0-1 */
  unsigned char HostAdapterIOPortAddress:2;		/* Byte 33 Bits 2-3 */
  boolean StrictRoundRobinModeEnabled:1;		/* Byte 33 Bit 4 */
  boolean VESABusSpeedGreaterThan33MHz:1;		/* Byte 33 Bit 5 */
  boolean VESABurstWriteEnabled:1;			/* Byte 33 Bit 6 */
  boolean VESABurstReadEnabled:1;			/* Byte 33 Bit 7 */
  unsigned short UltraPermitted;			/* Bytes 34-35 */
  unsigned int :32;					/* Bytes 36-39 */
  unsigned char :8;					/* Byte 40 */
  unsigned char AutoSCSIMaximumLUN;			/* Byte 41 */
  boolean :1;						/* Byte 42 Bit 0 */
  boolean SCAM_Dominant:1;				/* Byte 42 Bit 1 */
  boolean SCAM_Enabled:1;				/* Byte 42 Bit 2 */
  boolean SCAM_Level2:1;				/* Byte 42 Bit 3 */
  unsigned char :4;					/* Byte 42 Bits 4-7 */
  boolean INT13ExtensionEnabled:1;			/* Byte 43 Bit 0 */
  boolean :1;						/* Byte 43 Bit 1 */
  boolean CDROMBootEnabled:1;				/* Byte 43 Bit 2 */
  unsigned char :5;					/* Byte 43 Bits 3-7 */
  unsigned char BootTargetID:4;				/* Byte 44 Bits 0-3 */
  unsigned char BootChannel:4;				/* Byte 44 Bits 4-7 */
  unsigned char ForceBusDeviceScanningOrder:1;		/* Byte 45 Bit 0 */
  unsigned char :7;					/* Byte 45 Bits 1-7 */
  unsigned short NonTaggedToAlternateLUNPermitted;	/* Bytes 46-47 */
  unsigned short RenegotiateSyncAfterCheckCondition;	/* Bytes 48-49 */
  unsigned char Reserved[10];				/* Bytes 50-59 */
  unsigned char ManufacturingDiagnostic[2];		/* Bytes 60-61 */
  unsigned short Checksum;				/* Bytes 62-63 */
}
__attribute__ ((packed))
BusLogic_AutoSCSIData_T;