122 lines
2.6 KiB
C
122 lines
2.6 KiB
C
/* $NetBSD: scsi_all.h,v 1.19 2003/01/06 21:02:18 matt Exp $ */
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/*
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* SCSI-specific interface description.
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*/
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/*
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* Largely written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*/
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#ifndef _DEV_SCSIPI_SCSI_ALL_H_
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#define _DEV_SCSIPI_SCSI_ALL_H_
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/*
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* SCSI command format
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*/
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/*
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* Define dome bits that are in ALL (or a lot of) scsi commands
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*/
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#define SCSI_CTL_LINK 0x01
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#define SCSI_CTL_FLAG 0x02
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#define SCSI_CTL_VENDOR 0xC0
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/*
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* Some old SCSI devices need the LUN to be set in the top 3 bits of the
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* second byte of the CDB.
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*/
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#define SCSI_CMD_LUN_MASK 0xe0
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#define SCSI_CMD_LUN_SHIFT 5
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/*
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* XXX
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* Actually some SCSI driver expects this structure to be 12 bytes, so
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* don't change it unless you really know what you are doing
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*/
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struct scsi_generic {
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u_int8_t opcode;
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u_int8_t bytes[11];
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};
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/* XXX Is this a command ? What's its opcode ? */
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struct scsi_send_diag {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SSD_UOL 0x01
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#define SSD_DOL 0x02
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#define SSD_SELFTEST 0x04
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#define SSD_PF 0x10
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u_int8_t unused[1];
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u_int8_t paramlen[2];
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u_int8_t control;
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};
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#define SCSI_RESERVE 0x16
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struct scsi_reserve {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[2];
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_RELEASE 0x17
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struct scsi_release {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[2];
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_CHANGE_DEFINITION 0x40
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struct scsi_changedef {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused1;
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u_int8_t how;
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u_int8_t unused[4];
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u_int8_t datalen;
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u_int8_t control;
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};
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#define SC_SCSI_1 0x01
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#define SC_SCSI_2 0x03
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/* block descriptor, for mode sense/mode select */
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struct scsi_blk_desc {
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u_int8_t density;
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u_int8_t nblocks[3];
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u_int8_t reserved;
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u_int8_t blklen[3];
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};
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/*
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* Status Byte
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*/
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#define SCSI_OK 0x00
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#define SCSI_CHECK 0x02
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#define SCSI_BUSY 0x08
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#define SCSI_INTERM 0x10
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#define SCSI_RESV_CONFLICT 0x18
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#define SCSI_TERMINATED 0x22
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#define SCSI_QUEUE_FULL 0x28
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#define SCSI_ACA_ACTIVE 0x30
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#endif /* _DEV_SCSIPI_SCSI_ALL_H_ */
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