/*
* vmscsi-- Miniport driver for the Buslogic BT 958 SCSI Controller
* under Windows 2000/XP/Server 2003
*
* Based in parts on the buslogic driver for the same device
* available with the GNU Linux Operating System.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
//_________________________________________________________________________________________
//
// File description :The header file the driver for BusLogic-958 SCSI Host adapter card.
// The technical reference for this driver is at :
//
// Author: Namita Lal, Sirish Raghuram ( Calsoft Pvt Ltd)
// Date: 10th June 2002
// Status: Released
// Revision History: Changed queue depth to 191 - June 2002
//
//_________________________________________________________________________________________
// Prototype for functions
#pragma once
#include <ntddk.h>
#include <srb.h>
#include <scsi.h>
#include <ntddscsi.h>
#include <scsiwmi.h>
//#include <ntos/kefuncs.h>
//#include "miniport.h"
//#include "scsi.h"
//#include "scsiwmi.h"
//_________________________________________________________________________________________
// #defines
//_________________________________________________________________________________________
// Debug levels
#define ERROR 1
#define WARNING 2
#define TRACE 3
#define INFO 4
// Max transfer size
#define MAX_TRANSFER_SIZE 64 * 1024
// flag to turn on Scatter gather support
#define SG_SUPPORT 1
// flag to turn on tagged command queuing
#define TAG_QUEUING 1
#define BUSLOGIC_MAXIMUM_TAGS 128
// Define the maximum, maximum automatic, minimum automatic, and default Queue
// Depth to allow for Target Devices depending on whether or not they support
// Tagged Queuing and whether or not ISA Bounce Buffers are required.
#define BusLogic_MaxTaggedQueueDepth 128
// Define the default amount of time in seconds to wait between a Host Adapter
// Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands.
// Some SCSI devices get confused if they receive SCSI commands too soon after
// a SCSI Bus Reset.
#define BusLogic_DefaultBusSettleTime 2
// Define the maximum number of Target Devices supported by this driver.
#define BusLogic_MaxTargetDevices 16
// Define the maximum number of Logical unit supported/Target Devices supported by this driver.
#define BusLogic_MaxLogicalUnits 32
// Define the maximum number of Mailboxes that should be used for MultiMaster
// Host Adapters. This number is chosen to be larger than the maximum Host
// Adapter Queue Depth and small enough so that the Host Adapter structure
// does not cross an allocation block size boundary.
#define BusLogic_MaxMailboxes 211
// Define the Fetch Host Adapter Local RAM request type.
#define BusLogic_BIOS_BaseOffset 0
#define BusLogic_AutoSCSI_BaseOffset 64
// Define the SCSI Command Descriptor Block (CDB).
#define BusLogic_CDB_MaxLength 12
// Define the maximum number of Scatter/Gather Segments used by this driver.
// For optimal performance, it is important that this limit be at least as
// large as the largest single request generated by the I/O Subsystem.
#define BusLogic_ScatterGatherLimit 128
#define MAX_SG_LIMIT BusLogic_ScatterGatherLimit
#define BusLogic_AggressiveRoundRobinMode 0
#define BusLogic_StrictRoundRobinMode 1
// Define the Codes for byte 3 (Request sense allocation length) of the CCB structure.
#define BusLogic_Allocate14Bytes 0x00
#define BusLogic_DisableAutoReqSense 0x01
//_________________________________________________________________________________________
//_________________________________________________________________________________________
// typedef
//_________________________________________________________________________________________
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 Requested Reply Length type used by the Inquire Setup Information,
// Inquire Host Adapter Model Number, Inquire Synchronous Period, and Inquire
// Extended Setup Information commands.
typedef UCHAR BusLogic_RequestedReplyLength_T;
// Define a 32 bit Bus Address data type.
typedef unsigned int BusLogic_BusAddress_T;
// Define the Inquire Host Adapter Model Number reply type.
typedef UCHAR BusLogic_HostAdapterModelNumber_T[5];
// Define the Inquire Firmware Version 3rd Digit reply type.
typedef UCHAR BusLogic_FirmwareVersion3rdDigit_T;
// Define the Inquire Firmware Version Letter reply type.
typedef UCHAR BusLogic_FirmwareVersionLetter_T;
// Define a 32 bit Byte Count data type.
typedef unsigned int BusLogic_ByteCount_T;
typedef struct BusLogic_FetchHostAdapterLocalRAMRequest
{
UCHAR ByteOffset; // Byte 0
UCHAR ByteCount; // Byte 1
}
BusLogic_FetchHostAdapterLocalRAMRequest_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
}
BusLogic_ISACompatibleIOPort_T;
#pragma pack (1)
typedef struct BusLogic_PCIHostAdapterInformation
{
UCHAR ISACompatibleIOPort; /* Byte 0 */
UCHAR PCIAssignedIRQChannel; /* Byte 1 */
BOOLEAN LowByteTerminated:1; /* Byte 2 Bit 0 */
BOOLEAN HighByteTerminated:1; /* Byte 2 Bit 1 */
UCHAR :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 */
UCHAR :8; /* Byte 3 */
}BusLogic_PCIHostAdapterInformation_T;
// Define the Inquire Board ID reply structure.
typedef struct BusLogic_BoardID
{
UCHAR BoardType; /* Byte 0 */
UCHAR CustomFeatures; /* Byte 1 */
UCHAR FirmwareVersion1stDigit; /* Byte 2 */
UCHAR FirmwareVersion2ndDigit; /* Byte 3 */
} BusLogic_BoardID_T;
#pragma pack ()
// Define the Host Adapter Target Flags structure.
typedef struct BusLogic_TargetFlags
{
BOOLEAN TargetExists:1;
BOOLEAN TaggedQueuingSupported:1;
BOOLEAN WideTransfersSupported:1;
BOOLEAN TaggedQueuingActive:1;
BOOLEAN WideTransfersActive:1;
BOOLEAN CommandSuccessfulFlag:1;
BOOLEAN TargetInfoReported:1;
}
BusLogic_TargetFlags_T;
// Define the Host Adapter Target Statistics structure.
#define BusLogic_SizeBuckets 10
// Define a 10^18 Statistics Byte Counter data type.
typedef struct BusLogic_ByteCounter
{
unsigned int Units;
unsigned int Billions;
}BusLogic_ByteCounter_T;
typedef unsigned int BusLogic_CommandSizeBuckets_T[BusLogic_SizeBuckets];
typedef struct BusLogic_TargetStatistics
{
unsigned int CommandsAttempted;
unsigned int CommandsCompleted;
unsigned int ReadCommands;
unsigned int WriteCommands;
BusLogic_ByteCounter_T TotalBytesRead;
BusLogic_ByteCounter_T 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;
}
BusLogic_TargetStatistics_T;
#pragma pack (1)
// Define the Inquire Configuration reply structure.
typedef struct BusLogic_Configuration
{
UCHAR :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 */
UCHAR :1; /* Byte 1 Bit 4 */
BOOLEAN IRQ_Channel14:1; /* Byte 1 Bit 5 */
BOOLEAN IRQ_Channel15:1; /* Byte 1 Bit 6 */
UCHAR :1; /* Byte 1 Bit 7 */
UCHAR HostAdapterID:4; /* Byte 2 Bits 0-3 */
UCHAR :4; /* Byte 2 Bits 4-7 */
}BusLogic_Configuration_T;
// Define the Inquire Setup Information reply structure.
typedef struct BusLogic_SynchronousValue
{
UCHAR Offset:4; /* Bits 0-3 */
UCHAR TransferPeriod:3; /* Bits 4-6 */
BOOLEAN Synchronous:1; /* Bit 7 */
}BusLogic_SynchronousValue_T;
typedef BusLogic_SynchronousValue_T
BusLogic_SynchronousValues8_T[8];
typedef struct BusLogic_SetupInformation
{
BOOLEAN SynchronousInitiationEnabled:1; /* Byte 0 Bit 0 */
BOOLEAN ParityCheckingEnabled:1; /* Byte 0 Bit 1 */
UCHAR :6; /* Byte 0 Bits 2-7 */
UCHAR BusTransferRate; /* Byte 1 */
UCHAR PreemptTimeOnBus; /* Byte 2 */
UCHAR TimeOffBus; /* Byte 3 */
UCHAR MailboxCount; /* Byte 4 */
UCHAR MailboxAddress[3]; /* Bytes 5-7 */
BusLogic_SynchronousValues8_T SynchronousValuesID0to7; /* Bytes 8-15 */
UCHAR DisconnectPermittedID0to7; /* Byte 16 */
UCHAR Signature; /* Byte 17 */
UCHAR CharacterD; /* Byte 18 */
UCHAR HostBusType; /* Byte 19 */
UCHAR WideTransfersPermittedID0to7; /* Byte 20 */
UCHAR WideTransfersActiveID0to7; /* Byte 21 */
BusLogic_SynchronousValues8_T SynchronousValuesID8to15;/* Bytes 22-29 */
UCHAR DisconnectPermittedID8to15; /* Byte 30 */
UCHAR :8; /* Byte 31 */
UCHAR WideTransfersPermittedID8to15; /* Byte 32 */
UCHAR WideTransfersActiveID8to15; /* Byte 33 */
}BusLogic_SetupInformation_T;
// Something has to be done about the packing mechanism of these structures - Namita
// Define the Inquire Extended Setup Information reply structure.
typedef struct BusLogic_ExtendedSetupInformation
{
UCHAR BusType; // Byte 0
UCHAR BIOS_Address; // Byte 1
unsigned short ScatterGatherLimit; // Bytes 2-3
UCHAR MailboxCount; // Byte 4
BusLogic_BusAddress_T BaseMailboxAddress; // Bytes 5-8
struct
{
UCHAR :2; // Byte 9 Bits 0-1
BOOLEAN FastOnEISA:1; // Byte 9 Bit 2
UCHAR :3; // Byte 9 Bits 3-5
BOOLEAN LevelSensitiveInterrupt:1; // Byte 9 Bit 6
UCHAR :1;
} Misc; // Byte 9 Bit 7
UCHAR 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
UCHAR :3; // Byte 13 Bits 5-7
}BusLogic_ExtendedSetupInformation_T;
// Define the Host Adapter Local RAM AutoSCSI structure.
typedef struct BusLogic_AutoSCSIData
{
UCHAR InternalFactorySignature[2];/* Bytes 0-1 */
UCHAR InformationByteCount; /* Byte 2 */
UCHAR HostAdapterType[6]; /* Bytes 3-8 */
UCHAR :8; /* Byte 9 */
UCHAR FloppyEnabled:1; /* Byte 10 Bit 0 */
UCHAR FloppySecondary:1; /* Byte 10 Bit 1 */
UCHAR LevelSensitiveInterrupt:1; /* Byte 10 Bit 2 */
UCHAR :2; /* Byte 10 Bits 3-4 */
UCHAR SystemRAMAreaForBIOS:3; /* Byte 10 Bits 5-7 */
UCHAR DMA_Channel:7; /* Byte 11 Bits 0-6 */
UCHAR DMA_AutoConfiguration:1; /* Byte 11 Bit 7 */
UCHAR IRQ_Channel:7; /* Byte 12 Bits 0-6 */
UCHAR IRQ_AutoConfiguration:1; /* Byte 12 Bit 7 */
UCHAR DMA_TransferRate; /* Byte 13 */
UCHAR SCSI_ID; /* Byte 14 */
UCHAR LowByteTerminated:1; /* Byte 15 Bit 0 */
UCHAR ParityCheckingEnabled:1; /* Byte 15 Bit 1 */
UCHAR HighByteTerminated:1; /* Byte 15 Bit 2 */
UCHAR NoisyCablingEnvironment:1; /* Byte 15 Bit 3 */
UCHAR FastSynchronousNegotiation:1; /* Byte 15 Bit 4 */
UCHAR BusResetEnabled:1; /* Byte 15 Bit 5 */
UCHAR :1; /* Byte 15 Bit 6 */
UCHAR ActiveNegationEnabled:1; /* Byte 15 Bit 7 */
UCHAR BusOnDelay; /* Byte 16 */
UCHAR BusOffDelay; /* Byte 17 */
UCHAR HostAdapterBIOSEnabled:1; /* Byte 18 Bit 0 */
UCHAR BIOSRedirectionOfINT19Enabled:1; /* Byte 18 Bit 1 */
UCHAR ExtendedTranslationEnabled:1; /* Byte 18 Bit 2 */
UCHAR MapRemovableAsFixedEnabled:1; /* Byte 18 Bit 3 */
UCHAR :1; /* Byte 18 Bit 4 */
UCHAR BIOSSupportsMoreThan2DrivesEnabled:1;/* Byte 18 Bit 5 */
UCHAR BIOSInterruptModeEnabled:1; /* Byte 18 Bit 6 */
UCHAR FlopticalSupportEnabled:1; /* Byte 19 Bit 7 */
unsigned short DeviceEnabled:16; /* Bytes 19-20 */
unsigned short WidePermitted:16; /* Bytes 21-22 */
unsigned short FastPermitted:16; /* Bytes 23-24 */
unsigned short SynchronousPermitted:16; /* Bytes 25-26 */
unsigned short DisconnectPermitted:16; /* Bytes 27-28 */
unsigned short SendStartUnitCommand:16; /* Bytes 29-30 */
unsigned short IgnoreInBIOSScan:16; /* Bytes 31-32 */
UCHAR PCIInterruptPin:2; /* Byte 33 Bits 0-1 */
UCHAR HostAdapterIOPortAddress:2; /* Byte 33 Bits 2-3 */
UCHAR StrictRoundRobinModeEnabled:1; /* Byte 33 Bit 4 */
UCHAR VESABusSpeedGreaterThan33MHz:1; /* Byte 33 Bit 5 */
UCHAR VESABurstWriteEnabled:1; /* Byte 33 Bit 6 */
UCHAR VESABurstReadEnabled:1; /* Byte 33 Bit 7 */
unsigned short UltraPermitted:16; /* Bytes 34-35 */
unsigned int :32; /* Bytes 36-39 */
UCHAR :8; /* Byte 40 */
UCHAR AutoSCSIMaximumLUN; /* Byte 41 */
UCHAR :1; /* Byte 42 Bit 0 */
UCHAR SCAM_Dominant:1; /* Byte 42 Bit 1 */
UCHAR SCAM_Enabled:1; /* Byte 42 Bit 2 */
UCHAR SCAM_Level2:1; /* Byte 42 Bit 3 */
UCHAR :4; /* Byte 42 Bits 4-7 */
UCHAR INT13ExtensionEnabled:1; /* Byte 43 Bit 0 */
UCHAR :1; /* Byte 43 Bit 1 */
UCHAR CDROMBootEnabled:1; /* Byte 43 Bit 2 */
UCHAR :5; /* Byte 43 Bits 3-7 */
UCHAR BootTargetID:4; /* Byte 44 Bits 0-3 */
UCHAR BootChannel:4; /* Byte 44 Bits 4-7 */
UCHAR ForceBusDeviceScanningOrder:1; /* Byte 45 Bit 0 */
UCHAR :7; /* Byte 45 Bits 1-7 */
unsigned short NonTaggedToAlternateLUNPermitted; /* Bytes 46-47 */
unsigned short RenegotiateSyncAfterCheckCondition; /* Bytes 48-49 */
UCHAR Reserved[10]; /* Bytes 50-59 */
UCHAR ManufacturingDiagnostic[2]; /* Bytes 60-61 */
unsigned short Checksum:16; /* Bytes 62-63 */
}BusLogic_AutoSCSIData_T;
#pragma pack()
// Define the Outgoing Mailbox Action Codes.
typedef enum
{
BusLogic_OutgoingMailboxFree = 0x00,
BusLogic_MailboxStartCommand = 0x01,
BusLogic_MailboxAbortCommand = 0x02
}BusLogic_ActionCode_T;
// Define the Incoming Mailbox Completion Codes. The MultiMaster Firmware
// only uses codes 0 - 4. The FlashPoint SCCB Manager has no mailboxes, so
// completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5.
typedef enum
{
BusLogic_IncomingMailboxFree = 0x00,
BusLogic_CommandCompletedWithoutError = 0x01,
BusLogic_CommandAbortedAtHostRequest = 0x02,
BusLogic_AbortedCommandNotFound = 0x03,
BusLogic_CommandCompletedWithError = 0x04,
BusLogic_InvalidCCB = 0x05
}BusLogic_CompletionCode_T;
// Define the Command Control Block (CCB) Opcodes.
typedef enum
{
BusLogic_InitiatorCCB = 0x00,
BusLogic_TargetCCB = 0x01,
BusLogic_InitiatorCCB_ScatterGather = 0x02,
BusLogic_InitiatorCCB_ResidualDataLength = 0x03,
BusLogic_InitiatorCCB_ScatterGatherResidual = 0x04,
BusLogic_BusDeviceReset = 0x81
}BusLogic_CCB_Opcode_T;
// Define the CCB Data Direction Codes.
typedef enum
{
BusLogic_UncheckedDataTransfer = 0,
BusLogic_DataInLengthChecked = 1,
BusLogic_DataOutLengthChecked = 2,
BusLogic_NoDataTransfer = 3
}BusLogic_DataDirection_T;
// Define the Host Adapter Status Codes. The MultiMaster Firmware does not
// return status code 0x0C; it uses 0x12 for both overruns and underruns.
typedef enum
{
BusLogic_CommandCompletedNormally = 0x00,
BusLogic_LinkedCommandCompleted = 0x0A,
BusLogic_LinkedCommandCompletedWithFlag = 0x0B,
BusLogic_DataUnderRun = 0x0C,
BusLogic_SCSISelectionTimeout = 0x11,
BusLogic_DataOverRun = 0x12,
BusLogic_UnexpectedBusFree = 0x13,
BusLogic_InvalidBusPhaseRequested = 0x14,
BusLogic_InvalidOutgoingMailboxActionCode = 0x15,
BusLogic_InvalidCommandOperationCode = 0x16,
BusLogic_LinkedCCBhasInvalidLUN = 0x17,
BusLogic_InvalidCommandParameter = 0x1A,
BusLogic_AutoRequestSenseFailed = 0x1B,
BusLogic_TaggedQueuingMessageRejected = 0x1C,
BusLogic_UnsupportedMessageReceived = 0x1D,
BusLogic_HostAdapterHardwareFailed = 0x20,
BusLogic_TargetFailedResponseToATN = 0x21,
BusLogic_HostAdapterAssertedRST = 0x22,
BusLogic_OtherDeviceAssertedRST = 0x23,
BusLogic_TargetDeviceReconnectedImproperly = 0x24,
BusLogic_HostAdapterAssertedBusDeviceReset = 0x25,
BusLogic_AbortQueueGenerated = 0x26,
BusLogic_HostAdapterSoftwareError = 0x27,
BusLogic_HostAdapterHardwareTimeoutError= 0x30,
BusLogic_SCSIParityErrorDetected = 0x34
}BusLogic_HostAdapterStatus_T;
// Define the SCSI Target Device Status Codes.
typedef enum
{
BusLogic_OperationGood = 0x00,
BusLogic_CheckCondition = 0x02,
BusLogic_DeviceBusy = 0x08
}BusLogic_TargetDeviceStatus_T;
// Define the Queue Tag Codes.
typedef enum
{
BusLogic_SimpleQueueTag = 0,
BusLogic_HeadOfQueueTag = 1,
BusLogic_OrderedQueueTag = 2,
BusLogic_ReservedQT = 3
}BusLogic_QueueTag_T;
// Define the Scatter/Gather Segment structure required by the MultiMaster
// Firmware Interface and the FlashPoint SCCB Manager.
typedef struct BusLogic_ScatterGatherSegment
{
BusLogic_ByteCount_T SegmentByteCount; /* Bytes 0-3 */
BusLogic_BusAddress_T SegmentDataPointer; /* Bytes 4-7 */
}BusLogic_ScatterGatherSegment_T;
typedef UCHAR SCSI_CDB_T[BusLogic_CDB_MaxLength];
// Define the Driver CCB Status Codes.
typedef enum
{
BusLogic_CCB_Free = 0,
BusLogic_CCB_Active = 1,
BusLogic_CCB_Completed = 2,
BusLogic_CCB_Reset = 3
}BusLogic_CCB_Status_T;
// Define the 32 Bit Mode Command Control Block (CCB) structure. The first 40
// bytes are defined by the MultiMaster Firmware The remaining components are
// defined by the Scsi MiniportDriver.
// Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode
// CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to
// byte 1, and the Logical Unit field in byte 17 expanded to 6 bits. In theory,
// Extended LUN Format CCBs can support up to 64 Logical Units, but in practice
// many devices will respond improperly to Logical Units between 32 and 63, and
// the SCSI-2 specification defines Bit 5 as LUNTAR. Extended LUN Format CCBs
// are used by recent versions of the MultiMaster Firmware.
// Since 64 Logical Units are unlikely to be needed in practice, and
// since they are problematic for the above reasons, and since limiting them to
// 5 bits simplifies the CCB structure definition, this driver only supports
// 32 Logical Units per Target Device.
typedef struct BusLogic_CCB
{
UCHAR Opcode; /* Byte 0 */
UCHAR :3; /* Byte 1 Bits 0-2 */
UCHAR DataDirection:2; /* Byte 1 Bits 3-4 */
UCHAR TagEnable:1; /* Byte 1 Bit 5 */
UCHAR QueueTag:2; /* Byte 1 Bits 6-7 */
UCHAR CDB_Length; /* Byte 2 */
UCHAR SenseDataLength; /* Byte 3 */
BusLogic_ByteCount_T DataLength; /* Bytes 4-7 */
BusLogic_BusAddress_T DataPointer;/* Bytes 8-11 */
UCHAR :8; /* Byte 12 */
UCHAR :8; /* Byte 13 */
UCHAR HostAdapterStatus; /* Byte 14 */
UCHAR TargetDeviceStatus; /* Byte 15 */
UCHAR TargetID; /* Byte 16 */
UCHAR LogicalUnit:5; /* Byte 17 Bits 0-4 */
UCHAR LegacyTagEnable:1; /* Byte 17 Bit 5 */
UCHAR LegacyQueueTag:2; /* Byte 17 Bits 6-7 */
SCSI_CDB_T CDB; /* Bytes 18-29 */
UCHAR :8; /* Byte 30 */
UCHAR :8; /* Byte 31 */
unsigned int :32; /* Bytes 32-35 */
BusLogic_BusAddress_T SenseDataPointer;/* Bytes 36-39 */
// BusLogic Driver Defined Portion.
BusLogic_CCB_Status_T Status;
unsigned long SerialNumber;
struct BusLogic_HostAdapter *HostAdapter;
struct BusLogic_CCB *Next;
BusLogic_ScatterGatherSegment_T ScatterGatherList[BusLogic_ScatterGatherLimit];
BusLogic_CompletionCode_T CompletionCode;
// Pointer to the CCB
PVOID SrbAddress;
PVOID AbortSrb;
}BusLogic_CCB_T, *PBuslogic_CCB_T;
#pragma pack(1)
// Define the 32 Bit Mode Outgoing Mailbox structure.
typedef struct BusLogic_OutgoingMailbox
{
BusLogic_BusAddress_T CCB;/* Bytes 0-3 */
UCHAR :8; /* Bytes 4 */
UCHAR :8; /* Bytes 5 */
UCHAR :8; /* Bytes 6 */
UCHAR ActionCode; /* Byte 7 */
}BusLogic_OutgoingMailbox_T;
// Define the 32 Bit Mode Incoming Mailbox structure.
typedef struct BusLogic_IncomingMailbox
{
BusLogic_BusAddress_T CCB; /* Bytes 0-3 */
UCHAR HostAdapterStatus; /* Byte 4 */
UCHAR TargetDeviceStatus; /* Byte 5 */
UCHAR :8; /* Byte 6 */
UCHAR CompletionCode; /* Byte 7 */
}BusLogic_IncomingMailbox_T;
#pragma pack ()
//
// The following structure is allocated
// from noncached memory as data will be DMA'd to
// and from it.
typedef struct _NONCACHED_EXTENSION
{
// Physical base address of mailboxes
ULONG MailboxPA;
// Mailboxes
UCHAR MailboxOut[BusLogic_MaxMailboxes * sizeof(BusLogic_OutgoingMailbox_T)];
UCHAR MailboxIn[BusLogic_MaxMailboxes * sizeof(BusLogic_IncomingMailbox_T)];
} NONCACHED_EXTENSION, *PNONCACHED_EXTENSION;
// Define the types of BusLogic Host Adapters that are supported and the number
// of I/O Addresses required by each type.
typedef enum
{
BusLogic_MultiMaster = 1,
BusLogic_FlashPoint = 2
}BusLogic_HostAdapterType_T;
// Define the possible Host Adapter Bus Types.
typedef enum
{
BusLogic_Unknown_Bus = 0,
BusLogic_ISA_Bus = 1,
BusLogic_EISA_Bus = 2,
BusLogic_PCI_Bus = 3,
BusLogic_VESA_Bus = 4,
BusLogic_MCA_Bus = 5
}BusLogic_HostAdapterBusType_T;
#if 0
static char *BusLogic_HostAdapterBusNames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
#endif
static BusLogic_HostAdapterBusType_T
BusLogic_HostAdapterBusTypes[] ={ BusLogic_VESA_Bus, /* BT-4xx */
BusLogic_ISA_Bus, /* BT-5xx */
BusLogic_MCA_Bus, /* BT-6xx */
BusLogic_EISA_Bus, /* BT-7xx */
BusLogic_Unknown_Bus, /* BT-8xx */
BusLogic_PCI_Bus /* BT-9xx */
};
// Define the BusLogic Driver Host Adapter structure
typedef struct BusLogic_HostAdapter
{
BusLogic_HostAdapterType_T HostAdapterType;
BusLogic_HostAdapterBusType_T HostAdapterBusType;
UCHAR ModelName[9];
UCHAR FirmwareVersion[6];
UCHAR FullModelName[18];
UCHAR Bus;
PUCHAR IO_Address;
UCHAR IRQ_Channel;
UCHAR SCSI_ID;
BOOLEAN ExtendedTranslationEnabled:1;
BOOLEAN ParityCheckingEnabled:1;
BOOLEAN BusResetEnabled:1;
BOOLEAN LevelSensitiveInterrupt:1;
BOOLEAN HostWideSCSI:1;
BOOLEAN HostDifferentialSCSI:1;
BOOLEAN HostSupportsSCAM:1;
BOOLEAN HostUltraSCSI:1;
BOOLEAN ExtendedLUNSupport:1;
BOOLEAN TerminationInfoValid:1;
BOOLEAN LowByteTerminated:1;
BOOLEAN HighByteTerminated:1;
BOOLEAN BounceBuffersRequired:1;
BOOLEAN StrictRoundRobinModeSupport:1;
BOOLEAN SCAM_Enabled:1;
BOOLEAN SCAM_Level2:1;
BOOLEAN HostAdapterInitialized:1;
BOOLEAN HostAdapterExternalReset:1;
BOOLEAN HostAdapterInternalError:1;
BOOLEAN ProcessCompletedCCBsActive;
volatile BOOLEAN HostAdapterCommandCompleted;
unsigned short HostAdapterScatterGatherLimit;
unsigned short DriverScatterGatherLimit;
UCHAR MaxTargetDevices;
UCHAR MaxLogicalUnits;
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;
BusLogic_BusAddress_T BIOS_Address;
BusLogic_CCB_T *FirstCompletedCCB;
BusLogic_CCB_T *LastCompletedCCB;
BusLogic_CCB_T *BusDeviceResetPendingCCB[BusLogic_MaxTargetDevices];
BusLogic_TargetFlags_T TargetFlags[BusLogic_MaxTargetDevices];
UCHAR SynchronousPeriod[BusLogic_MaxTargetDevices];
UCHAR SynchronousOffset[BusLogic_MaxTargetDevices];
UCHAR ActiveCommandsPerTarget[BusLogic_MaxTargetDevices];
UCHAR ActiveCommandsPerLun[BusLogic_MaxTargetDevices][BusLogic_MaxLogicalUnits];
unsigned int CommandsSinceReset[BusLogic_MaxTargetDevices];
unsigned long LastSequencePoint[BusLogic_MaxTargetDevices];
unsigned long LastResetAttempted[BusLogic_MaxTargetDevices];
unsigned long LastResetCompleted[BusLogic_MaxTargetDevices];
UCHAR MailboxCount;
BusLogic_OutgoingMailbox_T *FirstOutgoingMailbox;
BusLogic_OutgoingMailbox_T *LastOutgoingMailbox;
BusLogic_OutgoingMailbox_T *NextOutgoingMailbox;
BusLogic_IncomingMailbox_T *FirstIncomingMailbox;
BusLogic_IncomingMailbox_T *LastIncomingMailbox;
BusLogic_IncomingMailbox_T *NextIncomingMailbox;
BusLogic_TargetStatistics_T TargetStatistics[BusLogic_MaxTargetDevices];
}BusLogic_HostAdapter_T;
// Buslogic specific port driver device object extension.
typedef struct
_HW_DEVICE_EXTENSION
{
BusLogic_HostAdapter_T hcs;
PNONCACHED_EXTENSION NoncachedExtension;
SCSI_WMILIB_CONTEXT WmiLibContext;
} HW_DEVICE_EXTENSION, *PHW_DEVICE_EXTENSION;
// Define a structure for the SCSI Inquiry command results.
#pragma pack (1)
typedef struct SCSI_Inquiry
{
UCHAR PeripheralDeviceType:5; /* Byte 0 Bits 0-4 */
UCHAR PeripheralQualifier:3; /* Byte 0 Bits 5-7 */
UCHAR DeviceTypeModifier:7; /* Byte 1 Bits 0-6 */
BOOLEAN RMB:1; /* Byte 1 Bit 7 */
UCHAR ANSI_ApprovedVersion:3; /* Byte 2 Bits 0-2 */
UCHAR ECMA_Version:3; /* Byte 2 Bits 3-5 */
UCHAR ISO_Version:2; /* Byte 2 Bits 6-7 */
UCHAR ResponseDataFormat:4; /* Byte 3 Bits 0-3 */
UCHAR :2; /* Byte 3 Bits 4-5 */
BOOLEAN TrmIOP:1; /* Byte 3 Bit 6 */
BOOLEAN AENC:1; /* Byte 3 Bit 7 */
UCHAR AdditionalLength; /* Byte 4 */
UCHAR :8; /* Byte 5 */
UCHAR :8; /* Byte 6 */
BOOLEAN SftRe:1; /* Byte 7 Bit 0 */
BOOLEAN CmdQue:1; /* Byte 7 Bit 1 */
BOOLEAN :1; /* Byte 7 Bit 2 */
BOOLEAN Linked:1; /* Byte 7 Bit 3 */
BOOLEAN Sync:1; /* Byte 7 Bit 4 */
BOOLEAN WBus16:1; /* Byte 7 Bit 5 */
BOOLEAN WBus32:1; /* Byte 7 Bit 6 */
BOOLEAN RelAdr:1; /* Byte 7 Bit 7 */
UCHAR VendorIdentification[8];/* Bytes 8-15 */
UCHAR ProductIdentification[16];/* Bytes 16-31 */
UCHAR ProductRevisionLevel[4];/* Bytes 32-35 */
}SCSI_Inquiry_T;
typedef struct BusLogic_WmiExtendedSetupInformation
{
UCHAR BusType; // Byte 0
UCHAR BIOS_Address; // Byte 1
unsigned short ScatterGatherLimit; // Bytes 2-3
UCHAR MailboxCount; // Byte 4
BusLogic_BusAddress_T BaseMailboxAddress; // Bytes 5-8
BOOLEAN FastOnEISA; // Byte 9
BOOLEAN LevelSensitiveInterrupt; // Byte 10
UCHAR FirmwareRevision[3]; // Bytes 11-14
BOOLEAN HostWideSCSI; // Byte 15
BOOLEAN HostDifferentialSCSI; // Byte 16
BOOLEAN HostSupportsSCAM; // Byte 17
BOOLEAN HostUltraSCSI; // Byte 18
BOOLEAN HostSmartTermination; // Byte 19
}BusLogic_WmiExtendedSetupInformation_T, *PBusLogic_WmiExtendedSetupInformation_T;
#pragma pack ()
//_________________________________________________________________________________________
// function declarations
//_________________________________________________________________________________________
ULONG
NTAPI
DriverEntry(IN PVOID DriverObject,
IN PVOID Argument2
);
ULONG
NTAPI
BT958HwFindAdapter(IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
);
BOOLEAN
NTAPI
BT958HwInitialize(IN PVOID HwDeviceExtension);
BOOLEAN
NTAPI
BT958HwStartIO(IN PVOID HwDeviceExtension,
IN PSCSI_REQUEST_BLOCK Srb
);
BOOLEAN
NTAPI
BT958HwInterrupt(IN PVOID HwDeviceExtension);
BOOLEAN
NTAPI
BT958HwResetBus(IN PVOID HwDeviceExtension,
IN ULONG PathId
);
SCSI_ADAPTER_CONTROL_STATUS
NTAPI
BT958HwAdapterControl(IN PVOID HwDeviceExtension,
IN SCSI_ADAPTER_CONTROL_TYPE ControlType,
IN PVOID Parameters
);
#if 0
BOOLEAN
BT958WmiSrb(IN PHW_DEVICE_EXTENSION HwDeviceExtension,
IN OUT PSCSI_WMI_REQUEST_BLOCK Srb);
#endif
void
BT958WmiInitialize( IN PHW_DEVICE_EXTENSION HwDeviceExtension);
BOOLEAN
Buslogic_InitBT958(PHW_DEVICE_EXTENSION deviceExtension,
PPORT_CONFIGURATION_INFORMATION ConfigInfo);
BOOLEAN
BusLogic_ProbeHostAdapter(BusLogic_HostAdapter_T *HostAdapter);
BOOLEAN
BusLogic_HardwareResetHostAdapter(BusLogic_HostAdapter_T *HostAdapter,
BOOLEAN HardReset);
BOOLEAN
BusLogic_CheckHostAdapter(BusLogic_HostAdapter_T *HostAdapter);
int
BusLogic_Command(BusLogic_HostAdapter_T *HostAdapter,
BusLogic_OperationCode_T OperationCode,
void *ParameterData,
int ParameterLength,
void *ReplyData,
int ReplyLength);
BOOLEAN
BusLogic_ReadHostAdapterConfiguration( BusLogic_HostAdapter_T *HostAdapter);
BOOLEAN
BusLogic_InitializeHostAdapter(PHW_DEVICE_EXTENSION deviceExtension,
PPORT_CONFIGURATION_INFORMATION ConfigInfo);
BOOLEAN
BusLogic_TargetDeviceInquiry(BusLogic_HostAdapter_T *HostAdapter);
int
BusLogic_QueueCommand(IN PVOID HwDeviceExtension,
IN PSCSI_REQUEST_BLOCK Srb,
IN PBuslogic_CCB_T ccb);
BOOLEAN
BusLogic_WriteOutgoingMailbox(PHW_DEVICE_EXTENSION deviceExtension ,
BusLogic_ActionCode_T ActionCode,
BusLogic_CCB_T *CCB);
void
BusLogic_ScanIncomingMailboxes(PHW_DEVICE_EXTENSION deviceExtension);
void
BusLogic_QueueCompletedCCB(PHW_DEVICE_EXTENSION deviceExtension, BusLogic_CCB_T *CCB);
void
BusLogic_ProcessCompletedCCBs(PHW_DEVICE_EXTENSION deviceExtension);
UCHAR
BusLogic_ComputeResultCode(BusLogic_HostAdapter_T *HostAdapter,
BusLogic_HostAdapterStatus_T HostAdapterStatus,
BusLogic_TargetDeviceStatus_T TargetDeviceStatus,
UCHAR SenseDataLength);
BOOLEAN
BusLogic_SendBusDeviceReset(IN PVOID HwDeviceExtension,
PSCSI_REQUEST_BLOCK Srb);
static UCHAR
ReadBusLogicPort(PUCHAR adr )
{
return ScsiPortReadPortUchar( adr );
}
static VOID
WriteBusLogicPort(UCHAR data,
PUCHAR adr)
{
ScsiPortWritePortUchar(adr, data);
}
//_________________________________________________________________________________________
// Declarations for the device registers and reading and writing to them
//_________________________________________________________________________________________
// Define the BusLogic SCSI Host Adapter I/O Register Offsets.
#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
{
UCHAR All;
struct
{
UCHAR :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
{
UCHAR 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
{
UCHAR All;
struct
{
BOOLEAN IncomingMailboxLoaded:1; // Bit 0
BOOLEAN OutgoingMailboxAvailable:1; // Bit 1
BOOLEAN CommandComplete:1; // Bit 2
BOOLEAN ExternalBusReset:1; // Bit 3
UCHAR Reserved:3; // Bits 4-6
BOOLEAN InterruptValid:1; // Bit 7
} Bits;
}BusLogic_InterruptRegister_T;
// Define the possible Host Adapter BIOS Disk Geometry Translations.
typedef enum BusLogic_BIOS_DiskGeometryTranslation
{
BusLogic_BIOS_Disk_Not_Installed = 0,
BusLogic_BIOS_Disk_Installed_64x32 = 1,
BusLogic_BIOS_Disk_Installed_128x32 = 2,
BusLogic_BIOS_Disk_Installed_255x63 = 3
}BusLogic_BIOS_DiskGeometryTranslation_T;
// Define the structure of the read-only Geometry Register
typedef union BusLogic_GeometryRegister
{
UCHAR All;
struct
{
BusLogic_BIOS_DiskGeometryTranslation_T Drive0Geometry:2; // Bits 0-1
BusLogic_BIOS_DiskGeometryTranslation_T Drive1Geometry:2; // Bits 2-3
UCHAR :3; // Bits 4-6
BOOLEAN ExtendedTranslationEnabled:1; // Bit 7
} Bits;
}
BusLogic_GeometryRegister_T;
static void
BusLogic_InterruptReset(BusLogic_HostAdapter_T *HostAdapter)
{
BusLogic_ControlRegister_T ControlRegister;
ControlRegister.All = 0;
ControlRegister.Bits.InterruptReset = TRUE;
WriteBusLogicPort(ControlRegister.All,
HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}
static void
BusLogic_SoftReset(BusLogic_HostAdapter_T *HostAdapter)
{
BusLogic_ControlRegister_T ControlRegister;
ControlRegister.All = 0;
ControlRegister.Bits.SoftReset = TRUE;
WriteBusLogicPort(ControlRegister.All,
HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}
static void
BusLogic_HardReset(BusLogic_HostAdapter_T *HostAdapter)
{
BusLogic_ControlRegister_T ControlRegister;
ControlRegister.All = 0;
ControlRegister.Bits.HardReset = TRUE;
WriteBusLogicPort(ControlRegister.All,
HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
}
static UCHAR
BusLogic_ReadStatusRegister(BusLogic_HostAdapter_T *HostAdapter)
{
return ReadBusLogicPort(HostAdapter->IO_Address + BusLogic_StatusRegisterOffset);
}
static UCHAR
BusLogic_ReadInterruptRegister(BusLogic_HostAdapter_T *HostAdapter)
{
return ReadBusLogicPort(HostAdapter->IO_Address + BusLogic_InterruptRegisterOffset);
}
static UCHAR
BusLogic_ReadGeometryRegister(BusLogic_HostAdapter_T *HostAdapter)
{
return ReadBusLogicPort(HostAdapter->IO_Address + BusLogic_GeometryRegisterOffset);
}
static UCHAR
BusLogic_ReadDataInRegister(BusLogic_HostAdapter_T *HostAdapter)
{
return ReadBusLogicPort(HostAdapter->IO_Address + BusLogic_DataInRegisterOffset);
}
static void
BusLogic_WriteCommandParameterRegister(BusLogic_HostAdapter_T *HostAdapter,
UCHAR Value)
{
WriteBusLogicPort(Value,
HostAdapter->IO_Address + BusLogic_CommandParameterRegisterOffset);
}
// BusLogic_StartMailboxCommand issues an Execute Mailbox Command, which
// notifies the Host Adapter that an entry has been made in an Outgoing
// Mailbox.
static void
BusLogic_StartMailboxCommand(BusLogic_HostAdapter_T *HostAdapter)
{
BusLogic_WriteCommandParameterRegister(HostAdapter,
BusLogic_ExecuteMailboxCommand);
}
// 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 UCHAR BusLogic_SynchronousPeriod_T[BusLogic_MaxTargetDevices];
// 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 UCHAR 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 Initialize Extended Mailbox request structure.
#pragma pack (1)
typedef struct BusLogic_ExtendedMailboxRequest
{
UCHAR MailboxCount; /* Byte 0 */
ULONG BaseMailboxAddress; /* Bytes 1-4 */
}BusLogic_ExtendedMailboxRequest_T;
#pragma pack ()
// Define the Set CCB Format request type. Extended LUN Format CCBs are
// necessary to support more than 8 Logical Units per Target Device.
typedef enum BusLogic_SetCCBFormatRequest
{
BusLogic_LegacyLUNFormatCCB = 0,
BusLogic_ExtendedLUNFormatCCB = 1
}BusLogic_SetCCBFormatRequest_T;
//______________________________________________________________________________________
// Statistics
//______________________________________________________________________________________
// BusLogic_IncrementByteCounter increments Byte Counter by Amount.
static void
BusLogic_IncrementByteCounter(BusLogic_ByteCounter_T *ByteCounter,
unsigned int Amount)
{
ByteCounter->Units += Amount;
if (ByteCounter->Units > 999999999)
{
ByteCounter->Units -= 1000000000;
ByteCounter->Billions++;
}
}
// BusLogic_IncrementSizeBucket increments the Bucket for Amount.
static 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]++;
}
// BusLogic_IncrementErrorCounter increments Error Counter by 1, stopping at
// 65535 rather than wrapping around to 0.
static void
BusLogic_IncrementErrorCounter(unsigned short *ErrorCounter)
{
if (*ErrorCounter < 65535) (*ErrorCounter)++;
}
//____________________________________________________________________________________________