freebsd-dev/sys/scsi/scsi_all.h
1993-11-18 05:03:27 +00:00

341 lines
6.4 KiB
C

/*
* SCSI general interface description
*/
/*
* Largely written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* $Id: scsi_all.h,v 2.0 93/10/06 21:10:28 julian Exp Locker: julian $
*/
#ifndef _SCSI_SCSI_ALL_H
#define _SCSI_SCSI_ALL_H 1
/*
* SCSI command format
*/
/*
* Define dome bits that are in ALL (or a lot of) scsi commands
*/
#define SCSI_CTL_LINK 0x01
#define SCSI_CTL_FLAG 0x02
#define SCSI_CTL_VENDOR 0xC0
#define SCSI_CMD_LUN 0xA0 /* these two should not be needed */
#define SCSI_CMD_LUN_SHIFT 5 /* LUN in the cmd is no longer SCSI */
struct scsi_generic
{
u_char opcode;
u_char bytes[11];
};
struct scsi_test_unit_ready
{
u_char op_code;
u_char byte2;
u_char unused[3];
u_char control;
};
struct scsi_send_diag
{
u_char op_code;
u_char byte2;
#define SSD_UOL 0x01
#define SSD_DOL 0x02
#define SSD_SELFTEST 0x04
#define SSD_PF 0x10
u_char unused[1];
u_char paramlen[2];
u_char control;
};
struct scsi_sense
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char length;
u_char control;
};
struct scsi_inquiry
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char length;
u_char control;
};
struct scsi_mode_sense
{
u_char op_code;
u_char byte2;
#define SMS_DBD 0x08
u_char page;
#define SMS_PAGE_CODE 0x3F
#define SMS_PAGE_CTRL 0xC0
#define SMS_PAGE_CTRL_CURRENT 0x00
#define SMS_PAGE_CTRL_CHANGEABLE 0x40
#define SMS_PAGE_CTRL_DEFAULT 0x80
#define SMS_PAGE_CTRL_SAVED 0xC0
u_char unused;
u_char length;
u_char control;
};
struct scsi_mode_sense_big
{
u_char op_code;
u_char byte2; /* same bits as small version */
u_char page; /* same bits as small version */
u_char unused[4];
u_char length[2];
u_char control;
};
struct scsi_mode_select
{
u_char op_code;
u_char byte2;
#define SMS_SP 0x01
#define SMS_PF 0x10
u_char unused[2];
u_char length;
u_char control;
};
struct scsi_mode_select_big
{
u_char op_code;
u_char byte2; /* same bits as small version */
u_char unused[5];
u_char length[2];
u_char control;
};
struct scsi_reserve
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char length;
u_char control;
};
struct scsi_release
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char length;
u_char control;
};
struct scsi_prevent
{
u_char op_code;
u_char byte2;
u_char unused[2];
u_char how;
u_char control;
};
#define PR_PREVENT 0x01
#define PR_ALLOW 0x00
struct scsi_changedef
{
u_char op_code;
u_char byte2;
u_char unused1;
u_char how;
u_char unused[4];
u_char datalen;
u_char control;
};
#define SC_SCSI_1 0x01
#define SC_SCSI_2 0x03
/*
* Opcodes
*/
#define TEST_UNIT_READY 0x00
#define REQUEST_SENSE 0x03
#define INQUIRY 0x12
#define MODE_SELECT 0x15
#define MODE_SENSE 0x1a
#define START_STOP 0x1b
#define RESERVE 0x16
#define RELEASE 0x17
#define PREVENT_ALLOW 0x1e
#define POSITION_TO_ELEMENT 0x2b
#define CHANGE_DEFINITION 0x40
#define MODE_SENSE_BIG 0x54
#define MODE_SELECT_BIG 0x55
#define MOVE_MEDIUM 0xa5
#define READ_ELEMENT_STATUS 0xb8
/*
* sense data format
*/
#define T_DIRECT 0
#define T_SEQUENTIAL 1
#define T_PRINTER 2
#define T_PROCESSOR 3
#define T_WORM 4
#define T_READONLY 5
#define T_SCANNER 6
#define T_OPTICAL 7
#define T_NODEVICE 0x1F
#define T_CHANGER 8
#define T_COMM 9
#define T_REMOV 1
#define T_FIXED 0
struct scsi_inquiry_data
{
u_char device;
#define SID_TYPE 0x1F
#define SID_QUAL 0xE0
#define SID_QUAL_LU_OK 0x00
#define SID_QUAL_LU_OFFLINE 0x20
#define SID_QUAL_RSVD 0x40
#define SID_QUAL_BAD_LU 0x60
u_char dev_qual2;
#define SID_QUAL2 0x7F
#define SID_REMOVABLE 0x80
u_char version;
#define SID_ANSII 0x07
#define SID_ECMA 0x38
#define SID_ISO 0xC0
u_char response_format;
u_char additional_length;
u_char unused[2];
u_char flags;
#define SID_SftRe 0x01
#define SID_CmdQue 0x02
#define SID_Linked 0x08
#define SID_Sync 0x10
#define SID_WBus16 0x20
#define SID_WBus32 0x40
#define SID_RelAdr 0x80
char vendor[8];
char product[16];
char revision[4];
u_char extra[8];
};
struct scsi_sense_data
{
/* 1*/ u_char error_code; /* same bits as new version */
union
{
struct
{
/* 2*/ u_char blockhi;
/* 3*/ u_char blockmed;
/* 4*/ u_char blocklow;
} unextended;
struct
{
/* 2*/ u_char segment;
/* 3*/ u_char flags; /* same bits as new version */
/* 7*/ u_char info[4];
/* 8*/ u_char extra_len;
/* allocate enough room to hold new stuff
( by increasing 16 to 24 below) */
/*32*/ u_char extra_bytes[24];
} extended;
}ext;
}; /* total of 32 bytes */
struct scsi_sense_data_new
{
/* 1*/ u_char error_code;
#define SSD_ERRCODE 0x7F
#define SSD_ERRCODE_VALID 0x80
union
{
struct /* this is deprecated, the standard says "DON'T"*/
{
/* 2*/ u_char blockhi;
/* 3*/ u_char blockmed;
/* 4*/ u_char blocklow;
} unextended;
struct
{
/* 2*/ u_char segment;
/* 3*/ u_char flags;
#define SSD_KEY 0x0F
#define SSD_ILI 0x20
#define SSD_EOM 0x40
#define SSD_FILEMARK 0x80
/* 7*/ u_char info[4];
/* 8*/ u_char extra_len;
/*12*/ u_char cmd_spec_info[4];
/*13*/ u_char add_sense_code;
/*14*/ u_char add_sense_code_qual;
/*15*/ u_char fru;
/*16*/ u_char sense_key_spec_1;
#define SSD_SCS_VALID 0x80
/*17*/ u_char sense_key_spec_2;
/*18*/ u_char sense_key_spec_3;
/*32*/ u_char extra_bytes[14];
} extended;
}ext;
}; /* total of 32 bytes */
struct blk_desc
{
u_char density;
u_char nblocks[3];
u_char reserved;
u_char blklen[3];
};
struct scsi_mode_header
{
u_char data_length; /* Sense data length */
u_char medium_type;
u_char dev_spec;
u_char blk_desc_len;
};
struct scsi_mode_header_big
{
u_char data_length[2]; /* Sense data length */
u_char medium_type;
u_char dev_spec;
u_char unused[2];
u_char blk_desc_len[2];
};
/*
* Status Byte
*/
#define SCSI_OK 0x00
#define SCSI_CHECK 0x02
#define SCSI_BUSY 0x08
#define SCSI_INTERM 0x10
#endif /*_SCSI_SCSI_ALL_H*/