#ifndef __ASPI16_H_
#define __ASPI16_H_
#define PACKED __attribute__((packed))
#define FAR
typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef unsigned long DWORD;
//*****************************************************************************
// %%% SCSI MISCELLANEOUS EQUATES %%%
//*****************************************************************************
#define SENSE_LEN 14 // Default sense buffer length
#define SRB_DIR_SCSI 0x00 // Direction determined by SCSI
#define SRB_POSTING 0x01 // Enable ASPI posting
#define SRB_ENABLE_RESIDUAL_COUNT 0x04 // Enable residual byte count reporting
#define SRB_DIR_IN 0x08 // Transfer from SCSI target to host
#define SRB_DIR_OUT 0x10 // Transfer from host to SCSI target
//*****************************************************************************
// %%% ASPI Command Definitions %%%
//*****************************************************************************
#define SC_HA_INQUIRY 0x00 // Host adapter inquiry
#define SC_GET_DEV_TYPE 0x01 // Get device type
#define SC_EXEC_SCSI_CMD 0x02 // Execute SCSI command
#define SC_ABORT_SRB 0x03 // Abort an SRB
#define SC_RESET_DEV 0x04 // SCSI bus device reset
#define SC_SET_HA_PARMS 0x05 // Set HA parameters
#define SC_GET_DISK_INFO 0x06 // Get Disk information
//*****************************************************************************
// %%% SRB Status %%%
//*****************************************************************************
#define SS_PENDING 0x00 // SRB being processed
#define SS_COMP 0x01 // SRB completed without error
#define SS_ABORTED 0x02 // SRB aborted
#define SS_ABORT_FAIL 0x03 // Unable to abort SRB
#define SS_ERR 0x04 // SRB completed with error
#define SS_INVALID_CMD 0x80 // Invalid ASPI command
#define SS_INVALID_HA 0x81 // Invalid host adapter number
#define SS_NO_DEVICE 0x82 // SCSI device not installed
//*****************************************************************************
// %%% Host Adapter Status %%%
//*****************************************************************************
#define HASTAT_OK 0x00 // Host adapter did not detect an // error
#define HASTAT_SEL_TO 0x11 // Selection Timeout
#define HASTAT_DO_DU 0x12 // Data overrun data underrun
#define HASTAT_BUS_FREE 0x13 // Unexpected bus free
#define HASTAT_PHASE_ERR 0x14 // Target bus phase sequence // failure
#define HASTAT_TIMEOUT 0x09 // Timed out while SRB was waiting to beprocessed.
#define HASTAT_COMMAND_TIMEOUT 0x0B // Adapter timed out processing SRB.
#define HASTAT_MESSAGE_REJECT 0x0D // While processing SRB, the // adapter received a MESSAGE
#define HASTAT_BUS_RESET 0x0E // A bus reset was detected.
#define HASTAT_PARITY_ERROR 0x0F // A parity error was detected.
#define HASTAT_REQUEST_SENSE_FAILED 0x10 // The adapter failed in issuing
typedef struct {
BYTE Cmd; // 00/000 ASPI command code = SC_EXEC_SCSI_CMD
BYTE Status; // 01/001 ASPI command status byte
BYTE HaId; // 02/002 ASPI host adapter number
BYTE Flags; // 03/003 ASPI request flags
DWORD Hdr_Rsvd; // 04/004 Reserved, MUST = 0
union {
struct {
BYTE Count; // 08/008 Number of host adapters present
BYTE SCSI_ID; // 09/009 SCSI ID of host adapter
BYTE ManagerId[16]; // 0A/010 String describing the manager
BYTE Identifier[16]; // 1A/026 String describing the host adapter
BYTE Unique[16]; // 2A/042 Host Adapter Unique parameters
BYTE ExtBuffer[8]; // 3A/058 Extended inquiry data
} PACKED HAInquiry;
struct {
BYTE Target; // 08/008 Target's SCSI ID
BYTE Lun; // 09/009 Target's LUN number
BYTE DeviceType; // 0A/010 Target's peripheral device type
} PACKED GetDeviceType;
struct {
BYTE Target; // 08/008 Target's SCSI ID
BYTE Lun; // 09/009 Target's LUN number
DWORD BufLen; // 0A/010 Data Allocation Length
BYTE SenseLen; // 0E/014 Sense Allocation Length
BYTE FAR *BufPointer; // 0F/015 Data Buffer Pointer
DWORD Rsvd1; // 13/019 Reserved, MUST = 0
BYTE CDBLen; // 17/023 CDB Length = 6/10/12
BYTE HaStat; // 18/024 Host Adapter Status
BYTE TargStat; // 19/025 Target Status
VOID FAR *PostProc; // 1A/026 Post routine
BYTE Rsvd2[34]; // 1E/030 Reserved, MUST = 0
union {
struct {
BYTE CDBByte[6]; // 40/064 SCSI CDB
BYTE SenseArea[SENSE_LEN+2]; // 46/070 Request Sense buffer
} PACKED _6;
struct {
BYTE CDBByte[10]; // 40/064 SCSI CDB
BYTE SenseArea[SENSE_LEN+2]; // 4A/074 Request Sense buffer
} PACKED _10;
struct {
BYTE CDBByte[12]; // 40/064 SCSI CDB
BYTE SenseArea[SENSE_LEN+2]; // 4C/076 Request Sense buffer
} PACKED _12;
} PACKED CmdLen;
} PACKED ExecSCSICmd;
struct {
VOID FAR *SRBToAbort; // 08/008 Pointer to SRB to abort
} PACKED Abort;
struct {
BYTE Target; // 08/008 Target's SCSI ID
BYTE Lun; // 09/009 Target's LUN number
BYTE ResetRsvd1[14]; // 0A/010 Reserved, MUST = 0
BYTE HaStat; // 18/024 Host Adapter Status
BYTE TargStat; // 19/025 Target Status
VOID FAR *PostProc; // 1A/026 Post routine
BYTE ResetRsvd2[34]; // 1E/030 Reserved, MUST = 0
} Reset;
} PACKED Type;
} PACKED SRB;
#endif //__ASPI16_H_