1/*
   2
   3  Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
   4
   5  Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
   6
   7  This program is free software; you may redistribute and/or modify it under
   8  the terms of the GNU General Public License Version 2 as published by the
   9  Free Software Foundation.
  10
  11  This program is distributed in the hope that it will be useful, but
  12  WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
  13  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  for complete details.
  15
  16  The author respectfully requests that any modifications to this software be
  17  sent directly to him for evaluation and testing.
  18
  19  Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
  20  advice has been invaluable, to David Gentzel, for writing the original Linux
  21  BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
  22
  23  Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
  24  Manager available as freely redistributable source code.
  25
  26*/
  27
  28#ifndef _BUSLOGIC_H
  29#define _BUSLOGIC_H
  30
  31
  32#ifndef PACKED
  33#define PACKED __attribute__((packed))
  34#endif
  35
  36/*
  37  Define the maximum number of BusLogic Host Adapters supported by this driver.
  38*/
  39
  40#define BusLogic_MaxHostAdapters		16
  41
  42
  43/*
  44  Define the maximum number of Target Devices supported by this driver.
  45*/
  46
  47#define BusLogic_MaxTargetDevices		16
  48
  49
  50/*
  51  Define the maximum number of Scatter/Gather Segments used by this driver.
  52  For optimal performance, it is important that this limit be at least as
  53  large as the largest single request generated by the I/O Subsystem.
  54*/
  55
  56#define BusLogic_ScatterGatherLimit		128
  57
  58
  59/*
  60  Define the maximum, maximum automatic, minimum automatic, and default Queue
  61  Depth to allow for Target Devices depending on whether or not they support
  62  Tagged Queuing and whether or not ISA Bounce Buffers are required.
  63*/
  64
  65#define BusLogic_MaxTaggedQueueDepth		64
  66#define BusLogic_MaxAutomaticTaggedQueueDepth	28
  67#define BusLogic_MinAutomaticTaggedQueueDepth	7
  68#define BusLogic_TaggedQueueDepthBB		3
  69#define BusLogic_UntaggedQueueDepth		3
  70#define BusLogic_UntaggedQueueDepthBB		2
  71
  72
  73/*
  74  Define the default amount of time in seconds to wait between a Host Adapter
  75  Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands.
  76  Some SCSI devices get confused if they receive SCSI commands too soon after
  77  a SCSI Bus Reset.
  78*/
  79
  80#define BusLogic_DefaultBusSettleTime		2
  81
  82
  83/*
  84  Define the maximum number of Mailboxes that should be used for MultiMaster
  85  Host Adapters.  This number is chosen to be larger than the maximum Host
  86  Adapter Queue Depth and small enough so that the Host Adapter structure
  87  does not cross an allocation block size boundary.
  88*/
  89
  90#define BusLogic_MaxMailboxes			211
  91
  92
  93/*
  94  Define the number of CCBs that should be allocated as a group to optimize
  95  Kernel memory allocation.
  96*/
  97
  98#define BusLogic_CCB_AllocationGroupSize	7
  99
 100
 101/*
 102  Define the Host Adapter Line and Message Buffer Sizes.
 103*/
 104
 105#define BusLogic_LineBufferSize			100
 106#define BusLogic_MessageBufferSize		9700
 107
 108
 109/*
 110  Define the Driver Message Levels.
 111*/
 112
 113enum BusLogic_MessageLevel {
 114	BusLogic_AnnounceLevel = 0,
 115	BusLogic_InfoLevel = 1,
 116	BusLogic_NoticeLevel = 2,
 117	BusLogic_WarningLevel = 3,
 118	BusLogic_ErrorLevel = 4
 119};
 120
 121static char *BusLogic_MessageLevelMap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR };
 122
 123
 124/*
 125  Define Driver Message macros.
 126*/
 127
 128#define BusLogic_Announce(Format, Arguments...) \
 129  BusLogic_Message(BusLogic_AnnounceLevel, Format, ##Arguments)
 130
 131#define BusLogic_Info(Format, Arguments...) \
 132  BusLogic_Message(BusLogic_InfoLevel, Format, ##Arguments)
 133
 134#define BusLogic_Notice(Format, Arguments...) \
 135  BusLogic_Message(BusLogic_NoticeLevel, Format, ##Arguments)
 136
 137#define BusLogic_Warning(Format, Arguments...) \
 138  BusLogic_Message(BusLogic_WarningLevel, Format, ##Arguments)
 139
 140#define BusLogic_Error(Format, Arguments...) \
 141  BusLogic_Message(BusLogic_ErrorLevel, Format, ##Arguments)
 142
 143
 144/*
 145  Define the types of BusLogic Host Adapters that are supported and the number
 146  of I/O Addresses required by each type.
 147*/
 148
 149enum BusLogic_HostAdapterType {
 150	BusLogic_MultiMaster = 1,
 151	BusLogic_FlashPoint = 2
 152} PACKED;
 153
 154#define BusLogic_MultiMasterAddressCount	4
 155#define BusLogic_FlashPointAddressCount		256
 156
 157static int BusLogic_HostAdapterAddressCount[3] = { 0, BusLogic_MultiMasterAddressCount, BusLogic_FlashPointAddressCount };
 158
 159
 160/*
 161  Define macros for testing the Host Adapter Type.
 162*/
 163
 164#ifdef CONFIG_SCSI_FLASHPOINT
 165
 166#define BusLogic_MultiMasterHostAdapterP(HostAdapter) \
 167  (HostAdapter->HostAdapterType == BusLogic_MultiMaster)
 168
 169#define BusLogic_FlashPointHostAdapterP(HostAdapter) \
 170  (HostAdapter->HostAdapterType == BusLogic_FlashPoint)
 171
 172#else
 173
 174#define BusLogic_MultiMasterHostAdapterP(HostAdapter) \
 175  (true)
 176
 177#define BusLogic_FlashPointHostAdapterP(HostAdapter) \
 178  (false)
 179
 180#endif
 181
 182
 183/*
 184  Define the possible Host Adapter Bus Types.
 185*/
 186
 187enum BusLogic_HostAdapterBusType {
 188	BusLogic_Unknown_Bus = 0,
 189	BusLogic_ISA_Bus = 1,
 190	BusLogic_EISA_Bus = 2,
 191	BusLogic_PCI_Bus = 3,
 192	BusLogic_VESA_Bus = 4,
 193	BusLogic_MCA_Bus = 5
 194} PACKED;
 195
 196static char *BusLogic_HostAdapterBusNames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
 197
 198static enum BusLogic_HostAdapterBusType BusLogic_HostAdapterBusTypes[] = {
 199	BusLogic_VESA_Bus,	/* BT-4xx */
 200	BusLogic_ISA_Bus,	/* BT-5xx */
 201	BusLogic_MCA_Bus,	/* BT-6xx */
 202	BusLogic_EISA_Bus,	/* BT-7xx */
 203	BusLogic_Unknown_Bus,	/* BT-8xx */
 204	BusLogic_PCI_Bus	/* BT-9xx */
 205};
 206
 207/*
 208  Define the possible Host Adapter BIOS Disk Geometry Translations.
 209*/
 210
 211enum BusLogic_BIOS_DiskGeometryTranslation {
 212	BusLogic_BIOS_Disk_Not_Installed = 0,
 213	BusLogic_BIOS_Disk_Installed_64x32 = 1,
 214	BusLogic_BIOS_Disk_Installed_128x32 = 2,
 215	BusLogic_BIOS_Disk_Installed_255x63 = 3
 216} PACKED;
 217
 218
 219/*
 220  Define a 10^18 Statistics Byte Counter data type.
 221*/
 222
 223struct BusLogic_ByteCounter {
 224	unsigned int Units;
 225	unsigned int Billions;
 226};
 227
 228
 229/*
 230  Define the structure for I/O Address and Bus Probing Information.
 231*/
 232
 233struct BusLogic_ProbeInfo {
 234	enum BusLogic_HostAdapterType HostAdapterType;
 235	enum BusLogic_HostAdapterBusType HostAdapterBusType;
 236	unsigned long IO_Address;
 237	unsigned long PCI_Address;
 238	struct pci_dev *PCI_Device;
 239	unsigned char Bus;
 240	unsigned char Device;
 241	unsigned char IRQ_Channel;
 242};
 243
 244/*
 245  Define the Probe Options.
 246*/
 247
 248struct BusLogic_ProbeOptions {
 249	bool NoProbe:1;		/* Bit 0 */
 250	bool NoProbeISA:1;	/* Bit 1 */
 251	bool NoProbePCI:1;	/* Bit 2 */
 252	bool NoSortPCI:1;	/* Bit 3 */
 253	bool MultiMasterFirst:1;/* Bit 4 */
 254	bool FlashPointFirst:1;	/* Bit 5 */
 255	bool LimitedProbeISA:1;	/* Bit 6 */
 256	bool Probe330:1;	/* Bit 7 */
 257	bool Probe334:1;	/* Bit 8 */
 258	bool Probe230:1;	/* Bit 9 */
 259	bool Probe234:1;	/* Bit 10 */
 260	bool Probe130:1;	/* Bit 11 */
 261	bool Probe134:1;	/* Bit 12 */
 262};
 263
 264/*
 265  Define the Global Options.
 266*/
 267
 268struct BusLogic_GlobalOptions {
 269	bool TraceProbe:1;	/* Bit 0 */
 270	bool TraceHardwareReset:1;	/* Bit 1 */
 271	bool TraceConfiguration:1;	/* Bit 2 */
 272	bool TraceErrors:1;	/* Bit 3 */
 273};
 274
 275/*
 276  Define the Local Options.
 277*/
 278
 279struct BusLogic_LocalOptions {
 280	bool InhibitTargetInquiry:1;	/* Bit 0 */
 281};
 282
 283/*
 284  Define the BusLogic SCSI Host Adapter I/O Register Offsets.
 285*/
 286
 287#define BusLogic_ControlRegisterOffset		0	/* WO register */
 288#define BusLogic_StatusRegisterOffset		0	/* RO register */
 289#define BusLogic_CommandParameterRegisterOffset	1	/* WO register */
 290#define BusLogic_DataInRegisterOffset		1	/* RO register */
 291#define BusLogic_InterruptRegisterOffset	2	/* RO register */
 292#define BusLogic_GeometryRegisterOffset		3	/* RO register */
 293
 294/*
 295  Define the structure of the write-only Control Register.
 296*/
 297
 298union BusLogic_ControlRegister {
 299	unsigned char All;
 300	struct {
 301		unsigned char:4;	/* Bits 0-3 */
 302		bool SCSIBusReset:1;	/* Bit 4 */
 303		bool InterruptReset:1;	/* Bit 5 */
 304		bool SoftReset:1;	/* Bit 6 */
 305		bool HardReset:1;	/* Bit 7 */
 306	} cr;
 307};
 308
 309/*
 310  Define the structure of the read-only Status Register.
 311*/
 312
 313union BusLogic_StatusRegister {
 314	unsigned char All;
 315	struct {
 316		bool CommandInvalid:1;		/* Bit 0 */
 317		bool Reserved:1;		/* Bit 1 */
 318		bool DataInRegisterReady:1;	/* Bit 2 */
 319		bool CommandParameterRegisterBusy:1;	/* Bit 3 */
 320		bool HostAdapterReady:1;	/* Bit 4 */
 321		bool InitializationRequired:1;	/* Bit 5 */
 322		bool DiagnosticFailure:1;	/* Bit 6 */
 323		bool DiagnosticActive:1;	/* Bit 7 */
 324	} sr;
 325};
 326
 327/*
 328  Define the structure of the read-only Interrupt Register.
 329*/
 330
 331union BusLogic_InterruptRegister {
 332	unsigned char All;
 333	struct {
 334		bool IncomingMailboxLoaded:1;	/* Bit 0 */
 335		bool OutgoingMailboxAvailable:1;/* Bit 1 */
 336		bool CommandComplete:1;		/* Bit 2 */
 337		bool ExternalBusReset:1;	/* Bit 3 */
 338		unsigned char Reserved:3;	/* Bits 4-6 */
 339		bool InterruptValid:1;		/* Bit 7 */
 340	} ir;
 341};
 342
 343/*
 344  Define the structure of the read-only Geometry Register.
 345*/
 346
 347union BusLogic_GeometryRegister {
 348	unsigned char All;
 349	struct {
 350		enum BusLogic_BIOS_DiskGeometryTranslation Drive0Geometry:2;	/* Bits 0-1 */
 351		enum BusLogic_BIOS_DiskGeometryTranslation Drive1Geometry:2;	/* Bits 2-3 */
 352		unsigned char:3;	/* Bits 4-6 */
 353		bool ExtendedTranslationEnabled:1;	/* Bit 7 */
 354	} gr;
 355};
 356
 357/*
 358  Define the BusLogic SCSI Host Adapter Command Register Operation Codes.
 359*/
 360
 361enum BusLogic_OperationCode {
 362	BusLogic_TestCommandCompleteInterrupt = 0x00,
 363	BusLogic_InitializeMailbox = 0x01,
 364	BusLogic_ExecuteMailboxCommand = 0x02,
 365	BusLogic_ExecuteBIOSCommand = 0x03,
 366	BusLogic_InquireBoardID = 0x04,
 367	BusLogic_EnableOutgoingMailboxAvailableInt = 0x05,
 368	BusLogic_SetSCSISelectionTimeout = 0x06,
 369	BusLogic_SetPreemptTimeOnBus = 0x07,
 370	BusLogic_SetTimeOffBus = 0x08,
 371	BusLogic_SetBusTransferRate = 0x09,
 372	BusLogic_InquireInstalledDevicesID0to7 = 0x0A,
 373	BusLogic_InquireConfiguration = 0x0B,
 374	BusLogic_EnableTargetMode = 0x0C,
 375	BusLogic_InquireSetupInformation = 0x0D,
 376	BusLogic_WriteAdapterLocalRAM = 0x1A,
 377	BusLogic_ReadAdapterLocalRAM = 0x1B,
 378	BusLogic_WriteBusMasterChipFIFO = 0x1C,
 379	BusLogic_ReadBusMasterChipFIFO = 0x1D,
 380	BusLogic_EchoCommandData = 0x1F,
 381	BusLogic_HostAdapterDiagnostic = 0x20,
 382	BusLogic_SetAdapterOptions = 0x21,
 383	BusLogic_InquireInstalledDevicesID8to15 = 0x23,
 384	BusLogic_InquireTargetDevices = 0x24,
 385	BusLogic_DisableHostAdapterInterrupt = 0x25,
 386	BusLogic_InitializeExtendedMailbox = 0x81,
 387	BusLogic_ExecuteSCSICommand = 0x83,
 388	BusLogic_InquireFirmwareVersion3rdDigit = 0x84,
 389	BusLogic_InquireFirmwareVersionLetter = 0x85,
 390	BusLogic_InquirePCIHostAdapterInformation = 0x86,
 391	BusLogic_InquireHostAdapterModelNumber = 0x8B,
 392	BusLogic_InquireSynchronousPeriod = 0x8C,
 393	BusLogic_InquireExtendedSetupInformation = 0x8D,
 394	BusLogic_EnableStrictRoundRobinMode = 0x8F,
 395	BusLogic_StoreHostAdapterLocalRAM = 0x90,
 396	BusLogic_FetchHostAdapterLocalRAM = 0x91,
 397	BusLogic_StoreLocalDataInEEPROM = 0x92,
 398	BusLogic_UploadAutoSCSICode = 0x94,
 399	BusLogic_ModifyIOAddress = 0x95,
 400	BusLogic_SetCCBFormat = 0x96,
 401	BusLogic_WriteInquiryBuffer = 0x9A,
 402	BusLogic_ReadInquiryBuffer = 0x9B,
 403	BusLogic_FlashROMUploadDownload = 0xA7,
 404	BusLogic_ReadSCAMData = 0xA8,
 405	BusLogic_WriteSCAMData = 0xA9
 406};
 407
 408/*
 409  Define the Inquire Board ID reply structure.
 410*/
 411
 412struct BusLogic_BoardID {
 413	unsigned char BoardType;	/* Byte 0 */
 414	unsigned char CustomFeatures;	/* Byte 1 */
 415	unsigned char FirmwareVersion1stDigit;	/* Byte 2 */
 416	unsigned char FirmwareVersion2ndDigit;	/* Byte 3 */
 417};
 418
 419/*
 420  Define the Inquire Configuration reply structure.
 421*/
 422
 423struct BusLogic_Configuration {
 424	unsigned char:5;	/* Byte 0 Bits 0-4 */
 425	bool DMA_Channel5:1;	/* Byte 0 Bit 5 */
 426	bool DMA_Channel6:1;	/* Byte 0 Bit 6 */
 427	bool DMA_Channel7:1;	/* Byte 0 Bit 7 */
 428	bool IRQ_Channel9:1;	/* Byte 1 Bit 0 */
 429	bool IRQ_Channel10:1;	/* Byte 1 Bit 1 */
 430	bool IRQ_Channel11:1;	/* Byte 1 Bit 2 */
 431	bool IRQ_Channel12:1;	/* Byte 1 Bit 3 */
 432	unsigned char:1;	/* Byte 1 Bit 4 */
 433	bool IRQ_Channel14:1;	/* Byte 1 Bit 5 */
 434	bool IRQ_Channel15:1;	/* Byte 1 Bit 6 */
 435	unsigned char:1;	/* Byte 1 Bit 7 */
 436	unsigned char HostAdapterID:4;	/* Byte 2 Bits 0-3 */
 437	unsigned char:4;	/* Byte 2 Bits 4-7 */
 438};
 439
 440/*
 441  Define the Inquire Setup Information reply structure.
 442*/
 443
 444struct BusLogic_SynchronousValue {
 445	unsigned char Offset:4;	/* Bits 0-3 */
 446	unsigned char TransferPeriod:3;	/* Bits 4-6 */
 447	bool Synchronous:1;	/* Bit 7 */
 448};
 449
 450struct BusLogic_SetupInformation {
 451	bool SynchronousInitiationEnabled:1;	/* Byte 0 Bit 0 */
 452	bool ParityCheckingEnabled:1;		/* Byte 0 Bit 1 */
 453	unsigned char:6;	/* Byte 0 Bits 2-7 */
 454	unsigned char BusTransferRate;	/* Byte 1 */
 455	unsigned char PreemptTimeOnBus;	/* Byte 2 */
 456	unsigned char TimeOffBus;	/* Byte 3 */
 457	unsigned char MailboxCount;	/* Byte 4 */
 458	unsigned char MailboxAddress[3];	/* Bytes 5-7 */
 459	struct BusLogic_SynchronousValue SynchronousValuesID0to7[8];	/* Bytes 8-15 */
 460	unsigned char DisconnectPermittedID0to7;	/* Byte 16 */
 461	unsigned char Signature;	/* Byte 17 */
 462	unsigned char CharacterD;	/* Byte 18 */
 463	unsigned char HostBusType;	/* Byte 19 */
 464	unsigned char WideTransfersPermittedID0to7;	/* Byte 20 */
 465	unsigned char WideTransfersActiveID0to7;	/* Byte 21 */
 466	struct BusLogic_SynchronousValue SynchronousValuesID8to15[8];	/* Bytes 22-29 */
 467	unsigned char DisconnectPermittedID8to15;	/* Byte 30 */
 468	unsigned char:8;	/* Byte 31 */
 469	unsigned char WideTransfersPermittedID8to15;	/* Byte 32 */
 470	unsigned char WideTransfersActiveID8to15;	/* Byte 33 */
 471};
 472
 473/*
 474  Define the Initialize Extended Mailbox request structure.
 475*/
 476
 477struct BusLogic_ExtendedMailboxRequest {
 478	unsigned char MailboxCount;	/* Byte 0 */
 479	u32 BaseMailboxAddress;	/* Bytes 1-4 */
 480} PACKED;
 481
 482
 483/*
 484  Define the Inquire PCI Host Adapter Information reply type.  The ISA
 485  Compatible I/O Port values are defined here and are also used with
 486  the Modify I/O Address command.
 487*/
 488
 489enum BusLogic_ISACompatibleIOPort {
 490	BusLogic_IO_330 = 0,
 491	BusLogic_IO_334 = 1,
 492	BusLogic_IO_230 = 2,
 493	BusLogic_IO_234 = 3,
 494	BusLogic_IO_130 = 4,
 495	BusLogic_IO_134 = 5,
 496	BusLogic_IO_Disable = 6,
 497	BusLogic_IO_Disable2 = 7
 498} PACKED;
 499
 500struct BusLogic_PCIHostAdapterInformation {
 501	enum BusLogic_ISACompatibleIOPort ISACompatibleIOPort;	/* Byte 0 */
 502	unsigned char PCIAssignedIRQChannel;	/* Byte 1 */
 503	bool LowByteTerminated:1;	/* Byte 2 Bit 0 */
 504	bool HighByteTerminated:1;	/* Byte 2 Bit 1 */
 505	unsigned char:2;	/* Byte 2 Bits 2-3 */
 506	bool JP1:1;		/* Byte 2 Bit 4 */
 507	bool JP2:1;		/* Byte 2 Bit 5 */
 508	bool JP3:1;		/* Byte 2 Bit 6 */
 509	bool GenericInfoValid:1;/* Byte 2 Bit 7 */
 510	unsigned char:8;	/* Byte 3 */
 511};
 512
 513/*
 514  Define the Inquire Extended Setup Information reply structure.
 515*/
 516
 517struct BusLogic_ExtendedSetupInformation {
 518	unsigned char BusType;	/* Byte 0 */
 519	unsigned char BIOS_Address;	/* Byte 1 */
 520	unsigned short ScatterGatherLimit;	/* Bytes 2-3 */
 521	unsigned char MailboxCount;	/* Byte 4 */
 522	u32 BaseMailboxAddress;	/* Bytes 5-8 */
 523	struct {
 524		unsigned char:2;	/* Byte 9 Bits 0-1 */
 525		bool FastOnEISA:1;	/* Byte 9 Bit 2 */
 526		unsigned char:3;	/* Byte 9 Bits 3-5 */
 527		bool LevelSensitiveInterrupt:1;	/* Byte 9 Bit 6 */
 528		unsigned char:1;	/* Byte 9 Bit 7 */
 529	} Misc;
 530	unsigned char FirmwareRevision[3];	/* Bytes 10-12 */
 531	bool HostWideSCSI:1;		/* Byte 13 Bit 0 */
 532	bool HostDifferentialSCSI:1;	/* Byte 13 Bit 1 */
 533	bool HostSupportsSCAM:1;	/* Byte 13 Bit 2 */
 534	bool HostUltraSCSI:1;		/* Byte 13 Bit 3 */
 535	bool HostSmartTermination:1;	/* Byte 13 Bit 4 */
 536	unsigned char:3;	/* Byte 13 Bits 5-7 */
 537} PACKED;
 538
 539/*
 540  Define the Enable Strict Round Robin Mode request type.
 541*/
 542
 543enum BusLogic_RoundRobinModeRequest {
 544	BusLogic_AggressiveRoundRobinMode = 0,
 545	BusLogic_StrictRoundRobinMode = 1
 546} PACKED;
 547
 548
 549/*
 550  Define the Fetch Host Adapter Local RAM request type.
 551*/
 552
 553#define BusLogic_BIOS_BaseOffset		0
 554#define BusLogic_AutoSCSI_BaseOffset		64
 555
 556struct BusLogic_FetchHostAdapterLocalRAMRequest {
 557	unsigned char ByteOffset;	/* Byte 0 */
 558	unsigned char ByteCount;	/* Byte 1 */
 559};
 560
 561/*
 562  Define the Host Adapter Local RAM AutoSCSI structure.
 563*/
 564
 565struct BusLogic_AutoSCSIData {
 566	unsigned char InternalFactorySignature[2];	/* Bytes 0-1 */
 567	unsigned char InformationByteCount;	/* Byte 2 */
 568	unsigned char HostAdapterType[6];	/* Bytes 3-8 */
 569	unsigned char:8;	/* Byte 9 */
 570	bool FloppyEnabled:1;		/* Byte 10 Bit 0 */
 571	bool FloppySecondary:1;		/* Byte 10 Bit 1 */
 572	bool LevelSensitiveInterrupt:1;	/* Byte 10 Bit 2 */
 573	unsigned char:2;	/* Byte 10 Bits 3-4 */
 574	unsigned char SystemRAMAreaForBIOS:3;	/* Byte 10 Bits 5-7 */
 575	unsigned char DMA_Channel:7;	/* Byte 11 Bits 0-6 */
 576	bool DMA_AutoConfiguration:1;	/* Byte 11 Bit 7 */
 577	unsigned char IRQ_Channel:7;	/* Byte 12 Bits 0-6 */
 578	bool IRQ_AutoConfiguration:1;	/* Byte 12 Bit 7 */
 579	unsigned char DMA_TransferRate;	/* Byte 13 */
 580	unsigned char SCSI_ID;	/* Byte 14 */
 581	bool LowByteTerminated:1;	/* Byte 15 Bit 0 */
 582	bool ParityCheckingEnabled:1;	/* Byte 15 Bit 1 */
 583	bool HighByteTerminated:1;	/* Byte 15 Bit 2 */
 584	bool NoisyCablingEnvironment:1;	/* Byte 15 Bit 3 */
 585	bool FastSynchronousNegotiation:1;	/* Byte 15 Bit 4 */
 586	bool BusResetEnabled:1;		/* Byte 15 Bit 5 */
 587	 bool:1;		/* Byte 15 Bit 6 */
 588	bool ActiveNegationEnabled:1;	/* Byte 15 Bit 7 */
 589	unsigned char BusOnDelay;	/* Byte 16 */
 590	unsigned char BusOffDelay;	/* Byte 17 */
 591	bool HostAdapterBIOSEnabled:1;		/* Byte 18 Bit 0 */
 592	bool BIOSRedirectionOfINT19Enabled:1;	/* Byte 18 Bit 1 */
 593	bool ExtendedTranslationEnabled:1;	/* Byte 18 Bit 2 */
 594	bool MapRemovableAsFixedEnabled:1;	/* Byte 18 Bit 3 */
 595	 bool:1;		/* Byte 18 Bit 4 */
 596	bool BIOSSupportsMoreThan2DrivesEnabled:1;	/* Byte 18 Bit 5 */
 597	bool BIOSInterruptModeEnabled:1;	/* Byte 18 Bit 6 */
 598	bool FlopticalSupportEnabled:1;		/* Byte 19 Bit 7 */
 599	unsigned short DeviceEnabled;	/* Bytes 19-20 */
 600	unsigned short WidePermitted;	/* Bytes 21-22 */
 601	unsigned short FastPermitted;	/* Bytes 23-24 */
 602	unsigned short SynchronousPermitted;	/* Bytes 25-26 */
 603	unsigned short DisconnectPermitted;	/* Bytes 27-28 */
 604	unsigned short SendStartUnitCommand;	/* Bytes 29-30 */
 605	unsigned short IgnoreInBIOSScan;	/* Bytes 31-32 */
 606	unsigned char PCIInterruptPin:2;	/* Byte 33 Bits 0-1 */
 607	unsigned char HostAdapterIOPortAddress:2;	/* Byte 33 Bits 2-3 */
 608	bool StrictRoundRobinModeEnabled:1;	/* Byte 33 Bit 4 */
 609	bool VESABusSpeedGreaterThan33MHz:1;	/* Byte 33 Bit 5 */
 610	bool VESABurstWriteEnabled:1;	/* Byte 33 Bit 6 */
 611	bool VESABurstReadEnabled:1;	/* Byte 33 Bit 7 */
 612	unsigned short UltraPermitted;	/* Bytes 34-35 */
 613	unsigned int:32;	/* Bytes 36-39 */
 614	unsigned char:8;	/* Byte 40 */
 615	unsigned char AutoSCSIMaximumLUN;	/* Byte 41 */
 616	 bool:1;		/* Byte 42 Bit 0 */
 617	bool SCAM_Dominant:1;	/* Byte 42 Bit 1 */
 618	bool SCAM_Enabled:1;	/* Byte 42 Bit 2 */
 619	bool SCAM_Level2:1;	/* Byte 42 Bit 3 */
 620	unsigned char:4;	/* Byte 42 Bits 4-7 */
 621	bool INT13ExtensionEnabled:1;	/* Byte 43 Bit 0 */
 622	 bool:1;		/* Byte 43 Bit 1 */
 623	bool CDROMBootEnabled:1;	/* Byte 43 Bit 2 */
 624	unsigned char:5;	/* Byte 43 Bits 3-7 */
 625	unsigned char BootTargetID:4;	/* Byte 44 Bits 0-3 */
 626	unsigned char BootChannel:4;	/* Byte 44 Bits 4-7 */
 627	unsigned char ForceBusDeviceScanningOrder:1;	/* Byte 45 Bit 0 */
 628	unsigned char:7;	/* Byte 45 Bits 1-7 */
 629	unsigned short NonTaggedToAlternateLUNPermitted;	/* Bytes 46-47 */
 630	unsigned short RenegotiateSyncAfterCheckCondition;	/* Bytes 48-49 */
 631	unsigned char Reserved[10];	/* Bytes 50-59 */
 632	unsigned char ManufacturingDiagnostic[2];	/* Bytes 60-61 */
 633	unsigned short Checksum;	/* Bytes 62-63 */
 634} PACKED;
 635
 636/*
 637  Define the Host Adapter Local RAM Auto SCSI Byte 45 structure.
 638*/
 639
 640struct BusLogic_AutoSCSIByte45 {
 641	unsigned char ForceBusDeviceScanningOrder:1;	/* Bit 0 */
 642	unsigned char:7;	/* Bits 1-7 */
 643};
 644
 645/*
 646  Define the Host Adapter Local RAM BIOS Drive Map Byte structure.
 647*/
 648
 649#define BusLogic_BIOS_DriveMapOffset		17
 650
 651struct BusLogic_BIOSDriveMapByte {
 652	unsigned char TargetIDBit3:1;	/* Bit 0 */
 653	unsigned char:2;	/* Bits 1-2 */
 654	enum BusLogic_BIOS_DiskGeometryTranslation DiskGeometry:2;	/* Bits 3-4 */
 655	unsigned char TargetID:3;	/* Bits 5-7 */
 656};
 657
 658/*
 659  Define the Set CCB Format request type.  Extended LUN Format CCBs are
 660  necessary to support more than 8 Logical Units per Target Device.
 661*/
 662
 663enum BusLogic_SetCCBFormatRequest {
 664	BusLogic_LegacyLUNFormatCCB = 0,
 665	BusLogic_ExtendedLUNFormatCCB = 1
 666} PACKED;
 667
 668/*
 669  Define the Outgoing Mailbox Action Codes.
 670*/
 671
 672enum BusLogic_ActionCode {
 673	BusLogic_OutgoingMailboxFree = 0x00,
 674	BusLogic_MailboxStartCommand = 0x01,
 675	BusLogic_MailboxAbortCommand = 0x02
 676} PACKED;
 677
 678
 679/*
 680  Define the Incoming Mailbox Completion Codes.  The MultiMaster Firmware
 681  only uses codes 0 - 4.  The FlashPoint SCCB Manager has no mailboxes, so
 682  completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5.
 683*/
 684
 685enum BusLogic_CompletionCode {
 686	BusLogic_IncomingMailboxFree = 0x00,
 687	BusLogic_CommandCompletedWithoutError = 0x01,
 688	BusLogic_CommandAbortedAtHostRequest = 0x02,
 689	BusLogic_AbortedCommandNotFound = 0x03,
 690	BusLogic_CommandCompletedWithError = 0x04,
 691	BusLogic_InvalidCCB = 0x05
 692} PACKED;
 693
 694/*
 695  Define the Command Control Block (CCB) Opcodes.
 696*/
 697
 698enum BusLogic_CCB_Opcode {
 699	BusLogic_InitiatorCCB = 0x00,
 700	BusLogic_TargetCCB = 0x01,
 701	BusLogic_InitiatorCCB_ScatterGather = 0x02,
 702	BusLogic_InitiatorCCB_ResidualDataLength = 0x03,
 703	BusLogic_InitiatorCCB_ScatterGatherResidual = 0x04,
 704	BusLogic_BusDeviceReset = 0x81
 705} PACKED;
 706
 707
 708/*
 709  Define the CCB Data Direction Codes.
 710*/
 711
 712enum BusLogic_DataDirection {
 713	BusLogic_UncheckedDataTransfer = 0,
 714	BusLogic_DataInLengthChecked = 1,
 715	BusLogic_DataOutLengthChecked = 2,
 716	BusLogic_NoDataTransfer = 3
 717};
 718
 719
 720/*
 721  Define the Host Adapter Status Codes.  The MultiMaster Firmware does not
 722  return status code 0x0C; it uses 0x12 for both overruns and underruns.
 723*/
 724
 725enum BusLogic_HostAdapterStatus {
 726	BusLogic_CommandCompletedNormally = 0x00,
 727	BusLogic_LinkedCommandCompleted = 0x0A,
 728	BusLogic_LinkedCommandCompletedWithFlag = 0x0B,
 729	BusLogic_DataUnderRun = 0x0C,
 730	BusLogic_SCSISelectionTimeout = 0x11,
 731	BusLogic_DataOverRun = 0x12,
 732	BusLogic_UnexpectedBusFree = 0x13,
 733	BusLogic_InvalidBusPhaseRequested = 0x14,
 734	BusLogic_InvalidOutgoingMailboxActionCode = 0x15,
 735	BusLogic_InvalidCommandOperationCode = 0x16,
 736	BusLogic_LinkedCCBhasInvalidLUN = 0x17,
 737	BusLogic_InvalidCommandParameter = 0x1A,
 738	BusLogic_AutoRequestSenseFailed = 0x1B,
 739	BusLogic_TaggedQueuingMessageRejected = 0x1C,
 740	BusLogic_UnsupportedMessageReceived = 0x1D,
 741	BusLogic_HostAdapterHardwareFailed = 0x20,
 742	BusLogic_TargetFailedResponseToATN = 0x21,
 743	BusLogic_HostAdapterAssertedRST = 0x22,
 744	BusLogic_OtherDeviceAssertedRST = 0x23,
 745	BusLogic_TargetDeviceReconnectedImproperly = 0x24,
 746	BusLogic_HostAdapterAssertedBusDeviceReset = 0x25,
 747	BusLogic_AbortQueueGenerated = 0x26,
 748	BusLogic_HostAdapterSoftwareError = 0x27,
 749	BusLogic_HostAdapterHardwareTimeoutError = 0x30,
 750	BusLogic_SCSIParityErrorDetected = 0x34
 751} PACKED;
 752
 753
 754/*
 755  Define the SCSI Target Device Status Codes.
 756*/
 757
 758enum BusLogic_TargetDeviceStatus {
 759	BusLogic_OperationGood = 0x00,
 760	BusLogic_CheckCondition = 0x02,
 761	BusLogic_DeviceBusy = 0x08
 762} PACKED;
 763
 764/*
 765  Define the Queue Tag Codes.
 766*/
 767
 768enum BusLogic_QueueTag {
 769	BusLogic_SimpleQueueTag = 0,
 770	BusLogic_HeadOfQueueTag = 1,
 771	BusLogic_OrderedQueueTag = 2,
 772	BusLogic_ReservedQT = 3
 773};
 774
 775/*
 776  Define the SCSI Command Descriptor Block (CDB).
 777*/
 778
 779#define BusLogic_CDB_MaxLength			12
 780
 781typedef unsigned char SCSI_CDB_T[BusLogic_CDB_MaxLength];
 782
 783
 784/*
 785  Define the Scatter/Gather Segment structure required by the MultiMaster
 786  Firmware Interface and the FlashPoint SCCB Manager.
 787*/
 788
 789struct BusLogic_ScatterGatherSegment {
 790	u32 SegmentByteCount;	/* Bytes 0-3 */
 791	u32 SegmentDataPointer;	/* Bytes 4-7 */
 792};
 793
 794/*
 795  Define the Driver CCB Status Codes.
 796*/
 797
 798enum BusLogic_CCB_Status {
 799	BusLogic_CCB_Free = 0,
 800	BusLogic_CCB_Active = 1,
 801	BusLogic_CCB_Completed = 2,
 802	BusLogic_CCB_Reset = 3
 803} PACKED;
 804
 805
 806/*
 807  Define the 32 Bit Mode Command Control Block (CCB) structure.  The first 40
 808  bytes are defined by and common to both the MultiMaster Firmware and the
 809  FlashPoint SCCB Manager.  The next 60 bytes are defined by the FlashPoint
 810  SCCB Manager.  The remaining components are defined by the Linux BusLogic
 811  Driver.  Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode
 812  CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to
 813  byte 1, and the Logical Unit field in byte 17 expanded to 6 bits.  In theory,
 814  Extended LUN Format CCBs can support up to 64 Logical Units, but in practice
 815  many devices will respond improperly to Logical Units between 32 and 63, and
 816  the SCSI-2 specification defines Bit 5 as LUNTAR.  Extended LUN Format CCBs
 817  are used by recent versions of the MultiMaster Firmware, as well as by the
 818  FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical
 819  Units.  Since 64 Logical Units are unlikely to be needed in practice, and
 820  since they are problematic for the above reasons, and since limiting them to
 821  5 bits simplifies the CCB structure definition, this driver only supports
 822  32 Logical Units per Target Device.
 823*/
 824
 825struct BusLogic_CCB {
 826	/*
 827	   MultiMaster Firmware and FlashPoint SCCB Manager Common Portion.
 828	 */
 829	enum BusLogic_CCB_Opcode Opcode;	/* Byte 0 */
 830	unsigned char:3;	/* Byte 1 Bits 0-2 */
 831	enum BusLogic_DataDirection DataDirection:2;	/* Byte 1 Bits 3-4 */
 832	bool TagEnable:1;	/* Byte 1 Bit 5 */
 833	enum BusLogic_QueueTag QueueTag:2;	/* Byte 1 Bits 6-7 */
 834	unsigned char CDB_Length;	/* Byte 2 */
 835	unsigned char SenseDataLength;	/* Byte 3 */
 836	u32 DataLength;		/* Bytes 4-7 */
 837	u32 DataPointer;	/* Bytes 8-11 */
 838	unsigned char:8;	/* Byte 12 */
 839	unsigned char:8;	/* Byte 13 */
 840	enum BusLogic_HostAdapterStatus HostAdapterStatus;	/* Byte 14 */
 841	enum BusLogic_TargetDeviceStatus TargetDeviceStatus;	/* Byte 15 */
 842	unsigned char TargetID;	/* Byte 16 */
 843	unsigned char LogicalUnit:5;	/* Byte 17 Bits 0-4 */
 844	bool LegacyTagEnable:1;	/* Byte 17 Bit 5 */
 845	enum BusLogic_QueueTag LegacyQueueTag:2;	/* Byte 17 Bits 6-7 */
 846	SCSI_CDB_T CDB;		/* Bytes 18-29 */
 847	unsigned char:8;	/* Byte 30 */
 848	unsigned char:8;	/* Byte 31 */
 849	unsigned int:32;	/* Bytes 32-35 */
 850	u32 SenseDataPointer;	/* Bytes 36-39 */
 851	/*
 852	   FlashPoint SCCB Manager Defined Portion.
 853	 */
 854	void (*CallbackFunction) (struct BusLogic_CCB *);	/* Bytes 40-43 */
 855	u32 BaseAddress;	/* Bytes 44-47 */
 856	enum BusLogic_CompletionCode CompletionCode;	/* Byte 48 */
 857#ifdef CONFIG_SCSI_FLASHPOINT
 858	unsigned char:8;	/* Byte 49 */
 859	unsigned short OS_Flags;	/* Bytes 50-51 */
 860	unsigned char Private[48];	/* Bytes 52-99 */
 861#endif
 862	/*
 863	   BusLogic Linux Driver Defined Portion.
 864	 */
 865	dma_addr_t AllocationGroupHead;
 866	unsigned int AllocationGroupSize;
 867	u32 DMA_Handle;
 868	enum BusLogic_CCB_Status Status;
 869	unsigned long SerialNumber;
 870	struct scsi_cmnd *Command;
 871	struct BusLogic_HostAdapter *HostAdapter;
 872	struct BusLogic_CCB *Next;
 873	struct BusLogic_CCB *NextAll;
 874	struct BusLogic_ScatterGatherSegment
 875	 ScatterGatherList[BusLogic_ScatterGatherLimit];
 876};
 877
 878/*
 879  Define the 32 Bit Mode Outgoing Mailbox structure.
 880*/
 881
 882struct BusLogic_OutgoingMailbox {
 883	u32 CCB;		/* Bytes 0-3 */
 884	unsigned int:24;	/* Bytes 4-6 */
 885	enum BusLogic_ActionCode ActionCode;	/* Byte 7 */
 886};
 887
 888/*
 889  Define the 32 Bit Mode Incoming Mailbox structure.
 890*/
 891
 892struct BusLogic_IncomingMailbox {
 893	u32 CCB;		/* Bytes 0-3 */
 894	enum BusLogic_HostAdapterStatus HostAdapterStatus;	/* Byte 4 */
 895	enum BusLogic_TargetDeviceStatus TargetDeviceStatus;	/* Byte 5 */
 896	unsigned char:8;	/* Byte 6 */
 897	enum BusLogic_CompletionCode CompletionCode;	/* Byte 7 */
 898};
 899
 900
 901/*
 902  Define the BusLogic Driver Options structure.
 903*/
 904
 905struct BusLogic_DriverOptions {
 906	unsigned short TaggedQueuingPermitted;
 907	unsigned short TaggedQueuingPermittedMask;
 908	unsigned short BusSettleTime;
 909	struct BusLogic_LocalOptions LocalOptions;
 910	unsigned char CommonQueueDepth;
 911	unsigned char QueueDepth[BusLogic_MaxTargetDevices];
 912};
 913
 914/*
 915  Define the Host Adapter Target Flags structure.
 916*/
 917
 918struct BusLogic_TargetFlags {
 919	bool TargetExists:1;
 920	bool TaggedQueuingSupported:1;
 921	bool WideTransfersSupported:1;
 922	bool TaggedQueuingActive:1;
 923	bool WideTransfersActive:1;
 924	bool CommandSuccessfulFlag:1;
 925	bool TargetInfoReported:1;
 926};
 927
 928/*
 929  Define the Host Adapter Target Statistics structure.
 930*/
 931
 932#define BusLogic_SizeBuckets			10
 933
 934typedef unsigned int BusLogic_CommandSizeBuckets_T[BusLogic_SizeBuckets];
 935
 936struct BusLogic_TargetStatistics {
 937	unsigned int CommandsAttempted;
 938	unsigned int CommandsCompleted;
 939	unsigned int ReadCommands;
 940	unsigned int WriteCommands;
 941	struct BusLogic_ByteCounter TotalBytesRead;
 942	struct BusLogic_ByteCounter TotalBytesWritten;
 943	BusLogic_CommandSizeBuckets_T ReadCommandSizeBuckets;
 944	BusLogic_CommandSizeBuckets_T WriteCommandSizeBuckets;
 945	unsigned short CommandAbortsRequested;
 946	unsigned short CommandAbortsAttempted;
 947	unsigned short CommandAbortsCompleted;
 948	unsigned short BusDeviceResetsRequested;
 949	unsigned short BusDeviceResetsAttempted;
 950	unsigned short BusDeviceResetsCompleted;
 951	unsigned short HostAdapterResetsRequested;
 952	unsigned short HostAdapterResetsAttempted;
 953	unsigned short HostAdapterResetsCompleted;
 954};
 955
 956/*
 957  Define the FlashPoint Card Handle data type.
 958*/
 959
 960#define FlashPoint_BadCardHandle		0xFFFFFFFF
 961
 962typedef unsigned int FlashPoint_CardHandle_T;
 963
 964
 965/*
 966  Define the FlashPoint Information structure.  This structure is defined
 967  by the FlashPoint SCCB Manager.
 968*/
 969
 970struct FlashPoint_Info {
 971	u32 BaseAddress;	/* Bytes 0-3 */
 972	bool Present;		/* Byte 4 */
 973	unsigned char IRQ_Channel;	/* Byte 5 */
 974	unsigned char SCSI_ID;	/* Byte 6 */
 975	unsigned char SCSI_LUN;	/* Byte 7 */
 976	unsigned short FirmwareRevision;	/* Bytes 8-9 */
 977	unsigned short SynchronousPermitted;	/* Bytes 10-11 */
 978	unsigned short FastPermitted;	/* Bytes 12-13 */
 979	unsigned short UltraPermitted;	/* Bytes 14-15 */
 980	unsigned short DisconnectPermitted;	/* Bytes 16-17 */
 981	unsigned short WidePermitted;	/* Bytes 18-19 */
 982	bool ParityCheckingEnabled:1;	/* Byte 20 Bit 0 */
 983	bool HostWideSCSI:1;		/* Byte 20 Bit 1 */
 984	bool HostSoftReset:1;		/* Byte 20 Bit 2 */
 985	bool ExtendedTranslationEnabled:1;	/* Byte 20 Bit 3 */
 986	bool LowByteTerminated:1;	/* Byte 20 Bit 4 */
 987	bool HighByteTerminated:1;	/* Byte 20 Bit 5 */
 988	bool ReportDataUnderrun:1;	/* Byte 20 Bit 6 */
 989	bool SCAM_Enabled:1;	/* Byte 20 Bit 7 */
 990	bool SCAM_Level2:1;	/* Byte 21 Bit 0 */
 991	unsigned char:7;	/* Byte 21 Bits 1-7 */
 992	unsigned char Family;	/* Byte 22 */
 993	unsigned char BusType;	/* Byte 23 */
 994	unsigned char ModelNumber[3];	/* Bytes 24-26 */
 995	unsigned char RelativeCardNumber;	/* Byte 27 */
 996	unsigned char Reserved[4];	/* Bytes 28-31 */
 997	unsigned int OS_Reserved;	/* Bytes 32-35 */
 998	unsigned char TranslationInfo[4];	/* Bytes 36-39 */
 999	unsigned int Reserved2[5];	/* Bytes 40-59 */
1000	unsigned int SecondaryRange;	/* Bytes 60-63 */
1001};
1002
1003/*
1004  Define the BusLogic Driver Host Adapter structure.
1005*/
1006
1007struct BusLogic_HostAdapter {
1008	struct Scsi_Host *SCSI_Host;
1009	struct pci_dev *PCI_Device;
1010	enum BusLogic_HostAdapterType HostAdapterType;
1011	enum BusLogic_HostAdapterBusType HostAdapterBusType;
1012	unsigned long IO_Address;
1013	unsigned long PCI_Address;
1014	unsigned short AddressCount;
1015	unsigned char HostNumber;
1016	unsigned char ModelName[9];
1017	unsigned char FirmwareVersion[6];
1018	unsigned char FullModelName[18];
1019	unsigned char Bus;
1020	unsigned char Device;
1021	unsigned char IRQ_Channel;
1022	unsigned char DMA_Channel;
1023	unsigned char SCSI_ID;
1024	bool IRQ_ChannelAcquired:1;
1025	bool DMA_ChannelAcquired:1;
1026	bool ExtendedTranslationEnabled:1;
1027	bool ParityCheckingEnabled:1;
1028	bool BusResetEnabled:1;
1029	bool LevelSensitiveInterrupt:1;
1030	bool HostWideSCSI:1;
1031	bool HostDifferentialSCSI:1;
1032	bool HostSupportsSCAM:1;
1033	bool HostUltraSCSI:1;
1034	bool ExtendedLUNSupport:1;
1035	bool TerminationInfoValid:1;
1036	bool LowByteTerminated:1;
1037	bool HighByteTerminated:1;
1038	bool BounceBuffersRequired:1;
1039	bool StrictRoundRobinModeSupport:1;
1040	bool SCAM_Enabled:1;
1041	bool SCAM_Level2:1;
1042	bool HostAdapterInitialized:1;
1043	bool HostAdapterExternalReset:1;
1044	bool HostAdapterInternalError:1;
1045	bool ProcessCompletedCCBsActive;
1046	volatile bool HostAdapterCommandCompleted;
1047	unsigned short HostAdapterScatterGatherLimit;
1048	unsigned short DriverScatterGatherLimit;
1049	unsigned short MaxTargetDevices;
1050	unsigned short MaxLogicalUnits;
1051	unsigned short MailboxCount;
1052	unsigned short InitialCCBs;
1053	unsigned short IncrementalCCBs;
1054	unsigned short AllocatedCCBs;
1055	unsigned short DriverQueueDepth;
1056	unsigned short HostAdapterQueueDepth;
1057	unsigned short UntaggedQueueDepth;
1058	unsigned short CommonQueueDepth;
1059	unsigned short BusSettleTime;
1060	unsigned short SynchronousPermitted;
1061	unsigned short FastPermitted;
1062	unsigned short UltraPermitted;
1063	unsigned short WidePermitted;
1064	unsigned short DisconnectPermitted;
1065	unsigned short TaggedQueuingPermitted;
1066	unsigned short ExternalHostAdapterResets;
1067	unsigned short HostAdapterInternalErrors;
1068	unsigned short TargetDeviceCount;
1069	unsigned short MessageBufferLength;
1070	u32 BIOS_Address;
1071	struct BusLogic_DriverOptions *DriverOptions;
1072	struct FlashPoint_Info FlashPointInfo;
1073	FlashPoint_CardHandle_T CardHandle;
1074	struct list_head host_list;
1075	struct BusLogic_CCB *All_CCBs;
1076	struct BusLogic_CCB *Free_CCBs;
1077	struct BusLogic_CCB *FirstCompletedCCB;
1078	struct BusLogic_CCB *LastCompletedCCB;
1079	struct BusLogic_CCB *BusDeviceResetPendingCCB[BusLogic_MaxTargetDevices];
1080	struct BusLogic_TargetFlags TargetFlags[BusLogic_MaxTargetDevices];
1081	unsigned char QueueDepth[BusLogic_MaxTargetDevices];
1082	unsigned char SynchronousPeriod[BusLogic_MaxTargetDevices];
1083	unsigned char SynchronousOffset[BusLogic_MaxTargetDevices];
1084	unsigned char ActiveCommands[BusLogic_MaxTargetDevices];
1085	unsigned int CommandsSinceReset[BusLogic_MaxTargetDevices];
1086	unsigned long LastSequencePoint[BusLogic_MaxTargetDevices];
1087	unsigned long LastResetAttempted[BusLogic_MaxTargetDevices];
1088	unsigned long LastResetCompleted[BusLogic_MaxTargetDevices];
1089	struct BusLogic_OutgoingMailbox *FirstOutgoingMailbox;
1090	struct BusLogic_OutgoingMailbox *LastOutgoingMailbox;
1091	struct BusLogic_OutgoingMailbox *NextOutgoingMailbox;
1092	struct BusLogic_IncomingMailbox *FirstIncomingMailbox;
1093	struct BusLogic_IncomingMailbox *LastIncomingMailbox;
1094	struct BusLogic_IncomingMailbox *NextIncomingMailbox;
1095	struct BusLogic_TargetStatistics TargetStatistics[BusLogic_MaxTargetDevices];
1096	unsigned char *MailboxSpace;
1097	dma_addr_t MailboxSpaceHandle;
1098	unsigned int MailboxSize;
1099	unsigned long CCB_Offset;
1100	char MessageBuffer[BusLogic_MessageBufferSize];
1101};
1102
1103/*
1104  Define a structure for the BIOS Disk Parameters.
1105*/
1106
1107struct BIOS_DiskParameters {
1108	int Heads;
1109	int Sectors;
1110	int Cylinders;
1111};
1112
1113/*
1114  Define a structure for the SCSI Inquiry command results.
1115*/
1116
1117struct SCSI_Inquiry {
1118	unsigned char PeripheralDeviceType:5;	/* Byte 0 Bits 0-4 */
1119	unsigned char PeripheralQualifier:3;	/* Byte 0 Bits 5-7 */
1120	unsigned char DeviceTypeModifier:7;	/* Byte 1 Bits 0-6 */
1121	bool RMB:1;		/* Byte 1 Bit 7 */
1122	unsigned char ANSI_ApprovedVersion:3;	/* Byte 2 Bits 0-2 */
1123	unsigned char ECMA_Version:3;	/* Byte 2 Bits 3-5 */
1124	unsigned char ISO_Version:2;	/* Byte 2 Bits 6-7 */
1125	unsigned char ResponseDataFormat:4;	/* Byte 3 Bits 0-3 */
1126	unsigned char:2;	/* Byte 3 Bits 4-5 */
1127	bool TrmIOP:1;		/* Byte 3 Bit 6 */
1128	bool AENC:1;		/* Byte 3 Bit 7 */
1129	unsigned char AdditionalLength;	/* Byte 4 */
1130	unsigned char:8;	/* Byte 5 */
1131	unsigned char:8;	/* Byte 6 */
1132	bool SftRe:1;		/* Byte 7 Bit 0 */
1133	bool CmdQue:1;		/* Byte 7 Bit 1 */
1134	 bool:1;		/* Byte 7 Bit 2 */
1135	bool Linked:1;		/* Byte 7 Bit 3 */
1136	bool Sync:1;		/* Byte 7 Bit 4 */
1137	bool WBus16:1;		/* Byte 7 Bit 5 */
1138	bool WBus32:1;		/* Byte 7 Bit 6 */
1139	bool RelAdr:1;		/* Byte 7 Bit 7 */
1140	unsigned char VendorIdentification[8];	/* Bytes 8-15 */
1141	unsigned char ProductIdentification[16];	/* Bytes 16-31 */
1142	unsigned char ProductRevisionLevel[4];	/* Bytes 32-35 */
1143};
1144
1145
1146/*
1147  Define functions to provide an abstraction for reading and writing the
1148  Host Adapter I/O Registers.
1149*/
1150
1151static inline void BusLogic_SCSIBusReset(struct BusLogic_HostAdapter *HostAdapter)
1152{
1153	union BusLogic_ControlRegister ControlRegister;
1154	ControlRegister.All = 0;
1155	ControlRegister.cr.SCSIBusReset = true;
1156	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
1157}
1158
1159static inline void BusLogic_InterruptReset(struct BusLogic_HostAdapter *HostAdapter)
1160{
1161	union BusLogic_ControlRegister ControlRegister;
1162	ControlRegister.All = 0;
1163	ControlRegister.cr.InterruptReset = true;
1164	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
1165}
1166
1167static inline void BusLogic_SoftReset(struct BusLogic_HostAdapter *HostAdapter)
1168{
1169	union BusLogic_ControlRegister ControlRegister;
1170	ControlRegister.All = 0;
1171	ControlRegister.cr.SoftReset = true;
1172	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
1173}
1174
1175static inline void BusLogic_HardReset(struct BusLogic_HostAdapter *HostAdapter)
1176{
1177	union BusLogic_ControlRegister ControlRegister;
1178	ControlRegister.All = 0;
1179	ControlRegister.cr.HardReset = true;
1180	outb(ControlRegister.All, HostAdapter->IO_Address + BusLogic_ControlRegisterOffset);
1181}
1182
1183static inline unsigned char BusLogic_ReadStatusRegister(struct BusLogic_HostAdapter *HostAdapter)
1184{
1185	return inb(HostAdapter->IO_Address + BusLogic_StatusRegisterOffset);
1186}
1187
1188static inline void BusLogic_WriteCommandParameterRegister(struct BusLogic_HostAdapter
1189							  *HostAdapter, unsigned char Value)
1190{
1191	outb(Value, HostAdapter->IO_Address + BusLogic_CommandParameterRegisterOffset);
1192}
1193
1194static inline unsigned char BusLogic_ReadDataInRegister(struct BusLogic_HostAdapter *HostAdapter)
1195{
1196	return inb(HostAdapter->IO_Address + BusLogic_DataInRegisterOffset);
1197}
1198
1199static inline unsigned char BusLogic_ReadInterruptRegister(struct BusLogic_HostAdapter *HostAdapter)
1200{
1201	return inb(HostAdapter->IO_Address + BusLogic_InterruptRegisterOffset);
1202}
1203
1204static inline unsigned char BusLogic_ReadGeometryRegister(struct BusLogic_HostAdapter *HostAdapter)
1205{
1206	return inb(HostAdapter->IO_Address + BusLogic_GeometryRegisterOffset);
1207}
1208
1209/*
1210  BusLogic_StartMailboxCommand issues an Execute Mailbox Command, which
1211  notifies the Host Adapter that an entry has been made in an Outgoing
1212  Mailbox.
1213*/
1214
1215static inline void BusLogic_StartMailboxCommand(struct BusLogic_HostAdapter *HostAdapter)
1216{
1217	BusLogic_WriteCommandParameterRegister(HostAdapter, BusLogic_ExecuteMailboxCommand);
1218}
1219
1220/*
1221  BusLogic_Delay waits for Seconds to elapse.
1222*/
1223
1224static inline void BusLogic_Delay(int Seconds)
1225{
1226	mdelay(1000 * Seconds);
1227}
1228
1229/*
1230  Virtual_to_Bus and Bus_to_Virtual map between Kernel Virtual Addresses
1231  and PCI/VLB/EISA/ISA Bus Addresses.
1232*/
1233
1234static inline u32 Virtual_to_Bus(void *VirtualAddress)
1235{
1236	return (u32) virt_to_bus(VirtualAddress);
1237}
1238
1239static inline void *Bus_to_Virtual(u32 BusAddress)
1240{
1241	return (void *) bus_to_virt(BusAddress);
1242}
1243
1244/*
1245  Virtual_to_32Bit_Virtual maps between Kernel Virtual Addresses and
1246  32 bit Kernel Virtual Addresses.  This avoids compilation warnings
1247  on 64 bit architectures.
1248*/
1249
1250static inline u32 Virtual_to_32Bit_Virtual(void *VirtualAddress)
1251{
1252	return (u32) (unsigned long) VirtualAddress;
1253}
1254
1255/*
1256  BusLogic_IncrementErrorCounter increments Error Counter by 1, stopping at
1257  65535 rather than wrapping around to 0.
1258*/
1259
1260static inline void BusLogic_IncrementErrorCounter(unsigned short *ErrorCounter)
1261{
1262	if (*ErrorCounter < 65535)
1263		(*ErrorCounter)++;
1264}
1265
1266/*
1267  BusLogic_IncrementByteCounter increments Byte Counter by Amount.
1268*/
1269
1270static inline void BusLogic_IncrementByteCounter(struct BusLogic_ByteCounter
1271						 *ByteCounter, unsigned int Amount)
1272{
1273	ByteCounter->Units += Amount;
1274	if (ByteCounter->Units > 999999999) {
1275		ByteCounter->Units -= 1000000000;
1276		ByteCounter->Billions++;
1277	}
1278}
1279
1280/*
1281  BusLogic_IncrementSizeBucket increments the Bucket for Amount.
1282*/
1283
1284static inline void BusLogic_IncrementSizeBucket(BusLogic_CommandSizeBuckets_T CommandSizeBuckets, unsigned int Amount)
1285{
1286	int Index = 0;
1287	if (Amount < 8 * 1024) {
1288		if (Amount < 2 * 1024)
1289			Index = (Amount < 1 * 1024 ? 0 : 1);
1290		else
1291			Index = (Amount < 4 * 1024 ? 2 : 3);
1292	} else if (Amount < 128 * 1024) {
1293		if (Amount < 32 * 1024)
1294			Index = (Amount < 16 * 1024 ? 4 : 5);
1295		else
1296			Index = (Amount < 64 * 1024 ? 6 : 7);
1297	} else
1298		Index = (Amount < 256 * 1024 ? 8 : 9);
1299	CommandSizeBuckets[Index]++;
1300}
1301
1302/*
1303  Define the version number of the FlashPoint Firmware (SCCB Manager).
1304*/
1305
1306#define FlashPoint_FirmwareVersion		"5.02"
1307
1308/*
1309  Define the possible return values from FlashPoint_HandleInterrupt.
1310*/
1311
1312#define FlashPoint_NormalInterrupt		0x00
1313#define FlashPoint_InternalError		0xFE
1314#define FlashPoint_ExternalBusReset		0xFF
1315
1316/*
1317  Define prototypes for the forward referenced BusLogic Driver
1318  Internal Functions.
1319*/
1320
1321static const char *BusLogic_DriverInfo(struct Scsi_Host *);
1322static int BusLogic_QueueCommand(struct Scsi_Host *h, struct scsi_cmnd *);
1323static int BusLogic_BIOSDiskParameters(struct scsi_device *, struct block_device *, sector_t, int *);
1324static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *, char *, char **, off_t, int, int);
1325static int BusLogic_SlaveConfigure(struct scsi_device *);
1326static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *);
1327static irqreturn_t BusLogic_InterruptHandler(int, void *);
1328static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *, bool HardReset);
1329static void BusLogic_Message(enum BusLogic_MessageLevel, char *, struct BusLogic_HostAdapter *, ...);
1330static int __init BusLogic_Setup(char *);
1331
1332#endif				/* _BUSLOGIC_H */