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NetBSD/sys/dev/scsipi/scsipi_all.h
mycroft 0f1275cee2 Do a 36-byte SCSI 2 inquiry first, and iff that returns an additional length 
>32 do a 74-byte inquiry.  Fixes problems with devices that barf on longer
inquiries.  (Linux uses 36 bytes almost everywhere, as a data point.)
2003-10-16 17:34:43 +00:00

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/* $NetBSD: scsipi_all.h,v 1.25 2003/10/16 17:34:43 mycroft Exp $ */
/*
* SCSI and SCSI-like 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
*/
#ifndef _DEV_SCSIPI_SCSIPI_ALL_H_
#define _DEV_SCSIPI_SCSIPI_ALL_H_
/*
* SCSI-like command format and opcode
*/
/*
* Some basic, common SCSI command group definitions.
*/
#define CDB_GROUPID(cmd) ((cmd >> 5) & 0x7)
#define CDB_GROUPID_0 0
#define CDB_GROUPID_1 1
#define CDB_GROUPID_2 2
#define CDB_GROUPID_3 3
#define CDB_GROUPID_4 4
#define CDB_GROUPID_5 5
#define CDB_GROUPID_6 6
#define CDB_GROUPID_7 7
#define CDB_GROUP0 6 /* 6-byte cdb's */
#define CDB_GROUP1 10 /* 10-byte cdb's */
#define CDB_GROUP2 10 /* 10-byte cdb's */
#define CDB_GROUP3 0 /* reserved */
#define CDB_GROUP4 16 /* 16-byte cdb's */
#define CDB_GROUP5 12 /* 12-byte cdb's */
#define CDB_GROUP6 0 /* vendor specific */
#define CDB_GROUP7 0 /* vendor specific */
/*
* Some basic, common SCSI commands
*/
#define TEST_UNIT_READY 0x00
struct scsipi_test_unit_ready {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[3];
u_int8_t control;
};
#define REQUEST_SENSE 0x03
struct scsipi_sense {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t length;
u_int8_t control;
};
#define MODE_SENSE 0x1a
struct scsipi_mode_sense {
u_int8_t opcode;
u_int8_t byte2;
#define SMS_DBD 0x08 /* disable block descriptors */
u_int8_t 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_int8_t unused;
u_int8_t length;
u_int8_t control;
} __attribute__((packed));
#define MODE_SENSE_BIG 0x5A
struct scsipi_mode_sense_big {
u_int8_t opcode;
u_int8_t byte2; /* same bits as small version */
u_int8_t page; /* same bits as small version */
u_int8_t unused[4];
u_int8_t length[2];
u_int8_t control;
} __attribute__((packed));
#define MODE_SELECT 0x15
struct scsipi_mode_select {
u_int8_t opcode;
u_int8_t byte2;
#define SMS_SP 0x01 /* save page */
#define SMS_PF 0x10 /* page format (0 = SCSI-1, 1 = SCSI-2) */
u_int8_t unused[2];
u_int8_t length;
u_int8_t control;
} __attribute__((packed));
#define MODE_SELECT_BIG 0x55
struct scsipi_mode_select_big {
u_int8_t opcode;
u_int8_t byte2; /* same bits as small version */
u_int8_t unused[5];
u_int8_t length[2];
u_int8_t control;
} __attribute__((packed));
#define INQUIRY 0x12
struct scsipi_inquiry {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t length;
u_int8_t control;
} __attribute__((packed));
#define START_STOP 0x1b
struct scsipi_start_stop {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t how;
#define SSS_STOP 0x00
#define SSS_START 0x01
#define SSS_LOEJ 0x02
u_int8_t control;
};
#define PREVENT_ALLOW 0x1e
struct scsipi_prevent {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t how;
u_int8_t control;
} __attribute__((packed));
#define PR_PREVENT 0x01
#define PR_ALLOW 0x00
/*
* inquiry and sense data format
*/
struct scsipi_sense_data {
/* 1*/ u_int8_t error_code;
#define SSD_ERRCODE 0x7F
#define SSD_ERRCODE_VALID 0x80
/* 2*/ u_int8_t segment;
/* 3*/ u_int8_t flags;
#define SSD_KEY 0x0F
#define SSD_ILI 0x20
#define SSD_EOM 0x40
#define SSD_FILEMARK 0x80
/* 7*/ u_int8_t info[4];
/* 8*/ u_int8_t extra_len;
/*12*/ u_int8_t cmd_spec_info[4];
/*13*/ u_int8_t add_sense_code;
/*14*/ u_int8_t add_sense_code_qual;
/*15*/ u_int8_t fru;
/*16*/ u_int8_t sense_key_spec_1;
#define SSD_SCS_VALID 0x80
/*17*/ u_int8_t sense_key_spec_2;
/*18*/ u_int8_t sense_key_spec_3;
/*32*/ u_int8_t extra_bytes[14];
} __attribute__((packed));
#define SKEY_NO_SENSE 0x00
#define SKEY_RECOVERED_ERROR 0x01
#define SKEY_NOT_READY 0x02
#define SKEY_MEDIUM_ERROR 0x03
#define SKEY_HARDWARE_ERROR 0x04
#define SKEY_ILLEGAL_REQUEST 0x05
#define SKEY_UNIT_ATTENTION 0x06
#define SKEY_WRITE_PROTECT 0x07
#define SKEY_BLANK_CHECK 0x08
#define SKEY_VENDOR_UNIQUE 0x09
#define SKEY_COPY_ABORTED 0x0A
#define SKEY_ABORTED_COMMAND 0x0B
#define SKEY_EQUAL 0x0C
#define SKEY_VOLUME_OVERFLOW 0x0D
#define SKEY_MISCOMPARE 0x0E
#define SKEY_RESERVED 0x0F
/*
* Sense bytes described by the extra_len tag start at cmd_spec_info,
* and can only continue up to the end of the structure we've defined
* (which is too short for some cases).
*/
#define ADD_BYTES_LIM(sp) \
((((int)(sp)->extra_len) < (int) sizeof(struct scsipi_sense_data) - 8)? \
((sp)->extra_len) : (sizeof (struct scsipi_sense_data) - 8))
struct scsipi_sense_data_unextended {
/* 1*/ u_int8_t error_code;
/* 4*/ u_int8_t block[3];
} __attribute__((packed));
#define T_REMOV 1 /* device is removable */
#define T_FIXED 0 /* device is not removable */
/*
* According to SPC-2r16, in order to know if a U3W device support PPR,
* Inquiry Data structure should be at least 57 Bytes
*/
struct scsipi_inquiry_data {
/* 1*/ u_int8_t device;
#define SID_TYPE 0x1f /* device type mask */
#define SID_QUAL 0xe0 /* device qualifier mask */
#define SID_QUAL_LU_PRESENT 0x00 /* logical unit present */
#define SID_QUAL_LU_NOTPRESENT 0x20 /* logical unit not present */
#define SID_QUAL_reserved 0x40
#define SID_QUAL_LU_NOT_SUPP 0x60 /* logical unit not supported */
#define T_DIRECT 0x00 /* direct access device */
#define T_SEQUENTIAL 0x01 /* sequential access device */
#define T_PRINTER 0x02 /* printer device */
#define T_PROCESSOR 0x03 /* processor device */
#define T_WORM 0x04 /* write once, read many device */
#define T_CDROM 0x05 /* cd-rom device */
#define T_SCANNER 0x06 /* scanner device */
#define T_OPTICAL 0x07 /* optical memory device */
#define T_CHANGER 0x08 /* medium changer device */
#define T_COMM 0x09 /* communication device */
#define T_IT8_1 0x0a /* Defined by ASC IT8... */
#define T_IT8_2 0x0b /* ...(Graphic arts pre-press devices) */
#define T_STORARRAY 0x0c /* storage array device */
#define T_ENCLOSURE 0x0d /* enclosure services device */
#define T_SIMPLE_DIRECT 0x0E /* Simplified direct-access device */
#define T_OPTIC_CARD_RW 0x0F /* Optical card reader/writer device */
#define T_OBJECT_STORED 0x11 /* Object-based Storage Device */
#define T_NODEVICE 0x1f
u_int8_t dev_qual2;
#define SID_QUAL2 0x7F
#define SID_REMOVABLE 0x80
/* 3*/ u_int8_t version;
#define SID_ANSII 0x07
#define SID_ECMA 0x38
#define SID_ISO 0xC0
/* 4*/ u_int8_t response_format;
#define SID_RespDataFmt 0x0F
#define SID_FORMAT_SCSI1 0x00 /* SCSI-1 format */
#define SID_FORMAT_CCS 0x01 /* SCSI CCS format */
#define SID_FORMAT_ISO 0x02 /* ISO format */
/* 5*/ u_int8_t additional_length; /* n-4 */
/* 6*/ u_int8_t flags1;
#define SID_SCC 0x80
/* 7*/ u_int8_t flags2;
#define SID_Addr16 0x01
#define SID_MChngr 0x08
#define SID_MultiPort 0x10
#define SID_EncServ 0x40
#define SID_BasQue 0x80
/* 8*/ u_int8_t flags3;
#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
/* 9*/ char vendor[8];
/*17*/ char product[16];
/*33*/ char revision[4];
#define SCSIPI_INQUIRY_LENGTH_SCSI2 36
/*37*/ u_int8_t vendor_specific[20];
/*57*/ u_int8_t flags4;
#define SID_IUS 0x01
#define SID_QAS 0x02
#define SID_Clocking 0x0C
#define SID_CLOCKING_ST_ONLY 0x00
#define SID_CLOCKING_DT_ONLY 0x04
#define SID_CLOCKING_SD_DT 0x0C
/*58*/ u_int8_t reserved;
/*59*/ char version_descriptor[8][2];
#define SCSIPI_INQUIRY_LENGTH_SCSI3 74
} __attribute__((packed)); /* 74 Bytes */
/* Data structures for mode select/mode sense */
struct scsipi_mode_header {
u_int8_t data_length; /* Sense data length */
u_int8_t medium_type;
u_int8_t dev_spec;
u_int8_t blk_desc_len; /* unused on ATAPI */
} __attribute__((packed));
struct scsipi_mode_header_big {
u_int8_t data_length[2]; /* Sense data length */
u_int8_t medium_type;
u_int8_t dev_spec;
u_int8_t unused[2]; /* unused on ATAPI */
u_int8_t blk_desc_len[2]; /* unused on ATAPI */
} __attribute__((packed));
/*
* This part is common to all mode pages.
*/
struct scsipi_mode_page_header {
u_int8_t pg_code; /* page code */
#define PGCODE_MASK 0x3f /* page code mask */
#define PGCODE_PS 0x80 /* page is savable */
u_int8_t pg_length; /* page length (not including hdr) */
} __attribute__((__packed__));
#endif /* _DEV_SCSIPI_SCSIPI_ALL_H_ */
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