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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
mca.h
Abstract:
This is the include file for the IBM MCA SCSI adapter drivers.
Author:
Mike Glass (mglass)
Notes:
Revision History:
--*/
#define MAXIMUM_SDL_SIZE 16
//
// Termination Status Block
//
typedef struct _TSB {
USHORT ScbStatus;
USHORT Reserved;
ULONG ResidualByteCount;
PVOID SgDescriptorAddress;
USHORT DeviceStatusLength;
UCHAR DeviceStatus;
UCHAR CommandStatus;
UCHAR DeviceError;
UCHAR CommandError;
ULONG Reserved2;
PVOID ScbAddress;
} TSB, *PTSB;
//
// TSB End Status
//
#define TSB_STATUS_NO_ERROR 0x0000
#define TSB_STATUS_SHORT_RECORD 0x0002
#define TSB_STATUS_INVALID_COMMAND 0x0004
#define TSB_STATUS_SCB_REJECTED 0x0008
#define TSB_STATUS_SCB_SPECIFIC_CHECK 0x0010
#define TSB_STATUS_LONG_RECORD 0x0020
#define TSB_STATUS_SCB_HALTED 0x0040
#define TSB_STATUS_SCB_INTERRUPT_QUEUED 0x0080
#define TSB_STATUS_ADDITIONAL_STATUS 0x0100
#define TSB_STATUS_DEVICE_STATUS 0x0200
#define TSB_STATUS_DEVICE_NOT_INIT 0x0800
#define TSB_STATUS_MAJOR_EXCEPTION 0x1000
//
// TSB Command Error Codes
//
#define TSB_COMMAND_ERROR_DEVICE_NOT_ASSIGNED 0x0A
//
// Scatter/Gather Descriptor and List
//
typedef struct _SG_DESCRIPTOR {
ULONG Address;
ULONG Length;
} SG_DESCRIPTOR, *PSG_DESCRIPTOR;
typedef struct _SDL {
SG_DESCRIPTOR Descriptor[MAXIMUM_SDL_SIZE];
} SDL, *PSDL;
//
// Subsystem Control Block
//
typedef struct _SCB {
USHORT Command;
USHORT EnableFlags;
USHORT CdbSize;
USHORT Reserved;
ULONG BufferAddress;
ULONG BufferLength;
ULONG StatusBlock;
struct _SCB *NextScb;
UCHAR Cdb[12];
TSB Tsb;
SDL Sdl;
PVOID SrbAddress;
} SCB, *PSCB;
//
// SCB Commands
//
#define SCB_COMMAND_ABORT 0x040F
#define SCB_COMMAND_ASSIGN 0x000E
#define SCB_COMMAND_INQUIRY 0x000B
#define SCB_COMMAND_DMA_CONTROL 0x000D
#define SCB_COMMAND_FEATURE_CONTROL 0x040C
#define SCB_COMMAND_FORMAT_PREPARE 0x0017
#define SCB_COMMAND_FORMAT 0x0016
#define SCB_COMMAND_GET_STATUS 0x0007
#define SCB_COMMAND_GET_POS 0x1c0a
#define SCB_COMMAND_READ 0x0001
#define SCB_COMMAND_READ_CAPACITY 0x1c09
#define SCB_COMMAND_READ_VERIFY 0x0003
#define SCB_COMMAND_REASSIGN_BLOCK 0x0018
#define SCB_COMMAND_REQUEST_SENSE 0x0008
#define SCB_COMMAND_RESET 0x0400
#define SCB_COMMAND_SEND_SCSI 0x241F
#define SCB_COMMAND_WRITE 0x0002
#define SCB_COMMAND_WRITE_VERIFY 0x0004
//
// SCB Command Masks
//
#define SCB_NO_DISCONNECT 0x0080
#define SCB_NO_SYNCHRONOUS_TRANSFER 0x0040
//
// SCB Enable Options Masks
//
#define SCB_ENABLE_WRITE 0x0000
#define SCB_ENABLE_READ 0x8000
#define SCB_ENABLE_TSB_ON_ERROR 0x4000
#define SCB_ENABLE_RETRY_ENABLE 0x2000
#define SCB_ENABLE_SG_LIST 0x1000
#define SCB_ENABLE_SHORT_TRANSFER 0x0400
#define SCB_ENABLE_BYPASS_BUFFER 0x0200
#define SCB_ENABLE_CHAINING 0x0100
//
// SCB Command Status
//
#define SCB_STATUS_SUCCESS 0x01
#define SCB_STATUS_SUCCESS_WITH_RETRIES 0x05
#define SCB_STATUS_ADAPTER_FAILED 0x07
#define SCB_STATUS_IMMEDIATE_COMMAND_COMPLETE 0x0A
#define SCB_STATUS_COMMAND_COMPLETE_WITH_FAILURE 0x0C
#define SCB_STATUS_COMMAND_ERROR 0x0E
#define SCB_STATUS_SOFTWARE_SEQUENCING_ERROR 0x0F
//
// SCB Device Status
//
#define SCB_DEV_STATUS_GOOD 0x00
#define SCB_DEV_STATUS_CHECK_CONDITION 0x01
#define SCB_DEV_STATUS_CONDITION_MET 0x02
#define SCB_DEV_STATUS_BUSY 0x04
#define SCB_DEV_STATUS_INTERMEDIATE_GOOD 0x08
#define SCB_DEV_STATUS_INTERMEDIATE_CONDITION_MET 0x0A
#define SCB_DEV_STATUS_RESERVATION_CONFLICT 0x0C
//
// MCA SCSI Adapter Registers
//
typedef struct _MCA_REGISTERS {
ULONG CommandInterface;
UCHAR Attention;
UCHAR BaseControl;
UCHAR InterruptStatus;
UCHAR BasicStatus;
} MCA_REGISTERS, *PMCA_REGISTERS;
//
// Attention Register Request Codes
//
#define IMMEDIATE_COMMAND 0x10
#define START_SCB 0x30
#define START_LONG_SCB 0x40
#define END_OF_INTERRUPT 0xE0
//
// Basic Control Register
//
#define INTERRUPT_ENABLE 0x01
#define DMA_ENABLE 0x02
#define HARDWARE_RESET 0x80
//
// Basic Status Register
//
#define BASIC_STATUS_BUSY 0x01
#define BASIC_STATUS_INTERRUPT 0x02
#define BASIC_STATUS_CI_EMPTY 0x04
#define BASIC_STATUS_CI_FULL 0x08
#define MAXIMUM_DATA_TRANSFER (16 * 1024 * 1024) - 1
//
// Disk Activity Light Macros
//
#define DISK_ACTIVITY_LIGHT_ON() { \
UCHAR portContents; \
portContents = ScsiPortReadPortUchar((PUCHAR)0x92); \
portContents |= 0x40; \
ScsiPortWritePortUchar((PUCHAR)0x92, portContents); \
}
#define DISK_ACTIVITY_LIGHT_OFF() { \
UCHAR portContents; \
portContents = ScsiPortReadPortUchar((PUCHAR)0x92); \
portContents &= ~0x40; \
ScsiPortWritePortUchar((PUCHAR)0x92, portContents); \
}
//
// POS and Adapter Information
//
typedef struct _ADAPTER_INFORMATION {
USHORT AdapterId;
UCHAR PosRegister3;
UCHAR PosRegister2;
UCHAR PosRegister4;
UCHAR InterruptLevel;
USHORT RevisionLevel:12;
USHORT ChannelConnector:4;
UCHAR NumberOfDevicesSupported;
UCHAR NumberOfLogicalUnitsSupported;
UCHAR NumberOfLogicalDevicesSupported;
UCHAR DmaPacingFactor;
UCHAR MaximumAdapterBusyTime;
UCHAR EoiToInterruptOffTime;
USHORT Reserved;
USHORT DisableRetryDeviceBitMap;
} ADAPTER_INFORMATION, *PADAPTER_INFORMATION;
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