[unix-history] / sys / scsi / scsi_tape.h

/*
 * SCSI tape interface description
 */

/*
 * 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_tape.h,v 1.8 93/08/31 21:40:16 julian Exp Locker: julian $
 */
#ifndef	SCSI_SCSI_TAPE_H
#define SCSI_SCSI_TAPE_H 1


/*
 * SCSI command formats
 */


struct scsi_rw_tape
{
	u_char	op_code;
	u_char	byte2;
#define	SRWT_FIXED	0x01
	u_char	len[3];
	u_char	control;
} rw_tape;

struct scsi_space
{
	u_char	op_code;
	u_char	byte2;
#define	SS_CODE	0x03
	u_char	number[3];
	u_char	control;
} space;
#define SP_BLKS	0
#define SP_FILEMARKS 1
#define SP_SEQ_FILEMARKS 2
#define	SP_EOM	3

struct scsi_write_filemarks
{
	u_char	op_code;
	u_char	byte2;
	u_char	number[3];
	u_char	control;
} write_filemarks;

struct scsi_rewind
{
	u_char	op_code;
	u_char	byte2;
#define	SR_IMMED	0x01
	u_char	unused[3];
	u_char	control;
} rewind;

struct scsi_load
{
	u_char	op_code;
	u_char	byte2;
#define	SL_IMMED	0x01
	u_char	unused[2];
	u_char	how;
	u_char	control;
} load;
#define LD_UNLOAD 0
#define LD_LOAD 1
#define LD_RETEN 2


struct scsi_blk_limits
{
	u_char	op_code;
	u_char	byte2;
	u_char	unused[3];
	u_char	control;
} blk_limits;

/*
 * Opcodes
 */

#define REWIND			0x01
#define	READ_BLK_LIMITS		0x05
#define	READ_COMMAND_TAPE	0x08
#define WRITE_COMMAND_TAPE	0x0a
#define	WRITE_FILEMARKS		0x10
#define	SPACE			0x11
#define LOAD_UNLOAD		0x1b /* same as above */


struct scsi_blk_limits_data
{
	u_char	reserved;
	u_char	max_length_2;	/* Most significant */
	u_char	max_length_1;
	u_char	max_length_0;	/* Least significant */
	u_char	min_length_1;	/* Most significant */
	u_char	min_length_0;	/* Least significant */
};

/* defines for the device specific byte in the mode select/sense header */
#define	SMH_DSP_SPEED		0x0F
#define	SMH_DSP_BUFF_MODE	0x70
#define	SMH_DSP_BUFF_MODE_OFF	0x00
#define	SMH_DSP_BUFF_MODE_ON	0x10
#define	SMH_DSP_BUFF_MODE_MLTI	0x20
#define	SMH_DSP_WRITE_PROT	0x80

/* A special for the CIPHER ST150S(old drive) */
struct	blk_desc_cipher
{
	u_char	density;
	u_char	nblocks[3];
	u_char	reserved;
	u_char	blklen[3];
	u_char  other;
#define ST150_SEC	0x01	/* soft error count */
#define	SR150_AUI	0x02	/* autoload inhibit */
};


/**********************************************************************
			from the scsi2 spec
                Value Tracks Density(bpi) Code Type  Reference     Note
                0x1     9       800       NRZI  R    X3.22-1983    2
                0x2     9      1600       PE    R    X3.39-1986    2
                0x3     9      6250       GCR   R    X3.54-1986    2
                0x5    4/9     8000       GCR   C    X3.136-1986   1
                0x6     9      3200       PE    R    X3.157-1987   2
                0x7     4      6400       IMFM  C    X3.116-1986   1
                0x8     4      8000       GCR   CS   X3.158-1986   1
                0x9    18     37871       GCR   C    X3B5/87-099   2
                0xA    22      6667       MFM   C    X3B5/86-199   1
                0xB     4      1600       PE    C    X3.56-1986    1
                0xC    24     12690       GCR   C    HI-TC1        1,5
                0xD    24     25380       GCR   C    HI-TC2        1,5
                0xF    15     10000       GCR   C    QIC-120       1,5
                0x10   18     10000       GCR   C    QIC-150       1,5
                0x11   26     16000       GCR   C    QIC-320(525?) 1,5
                0x12   30     51667       RLL   C    QIC-1350      1,5
                0x13    1     61000       DDS   CS    X3B5/88-185A 4
                0x14    1     43245       RLL   CS    X3.202-1991  4
                0x15    1     45434       RLL   CS    ECMA TC17    4
                0x16   48     10000       MFM   C     X3.193-1990  1
                0x17   48     42500       MFM   C     X3B5/91-174  1

                where Code means:
                NRZI Non Return to Zero, change on ones
                GCR  Group Code Recording
                PE   Phase Encoded
                IMFM Inverted Modified Frequency Modulation
                MFM  Modified Frequency Modulation
                DDS  Dat Data Storage
                RLL  Run Length Encoding

                where Type means:
                R    Real-to-Real
                C    Cartridge
                CS   cassette

                where Notes means:
                1    Serial Recorded
                2    Parallel Recorded
                3    Old format know as QIC-11
                4    Helical Scan
                5    Not ANSI standard, rather industry standard.

********************************************************************/

#define	HALFINCH_800	0x01
#define	HALFINCH_1600	0x02
#define	HALFINCH_6250	0x03
#define	QIC_11		0x04	/* from Archive 150S Theory of Op. XXX	*/
#define QIC_24		0x05	/* may be bad, works for CIPHER ST150S XXX */
#define QIC_120		0x0f
#define QIC_150		0x10
#define QIC_320		0x11
#define QIC_525		0x11
#define QIC_1320	0x12
#define DDS		0x13
#define DAT_1		0x13

#endif /*SCSI_SCSI_TAPE_H*/
Commit	Line	Data
15637ed4 RG	1	/*
	2	* SCSI tape interface description
	3	*/
	4
	5	/*
	6	* Written by Julian Elischer (julian@tfs.com)
	7	* for TRW Financial Systems.
	8	*
	9	* TRW Financial Systems, in accordance with their agreement with Carnegie
	10	* Mellon University, makes this software available to CMU to distribute
	11	* or use in any manner that they see fit as long as this message is kept with
	12	* the software. For this reason TFS also grants any other persons or
	13	* organisations permission to use or modify this software.
	14	*
	15	* TFS supplies this software to be publicly redistributed
	16	* on the understanding that TFS is not responsible for the correct
	17	* functioning of this software in any circumstances.
	18	*
d4284689 RG	19	*/
	20
	21	/*
15637ed4	22	* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
98639498	23	*
519fb2b7	24	* $Id: scsi_tape.h,v 1.8 93/08/31 21:40:16 julian Exp Locker: julian $
15637ed4	25	*/
519fb2b7 RG	26	#ifndef SCSI_SCSI_TAPE_H
519fb2b7 RG	27	#define SCSI_SCSI_TAPE_H 1
15637ed4	28
d4284689 RG	29
d4284689 RG	30
15637ed4	31	/*
d4284689	32	* SCSI command formats
15637ed4 RG	33	*/
15637ed4 RG	34
d4284689	35
15637ed4 RG	36	struct scsi_rw_tape
	37	{
	38	u_char op_code;
869c4419 RG	39	u_char byte2;
869c4419 RG	40	#define SRWT_FIXED 0x01
15637ed4	41	u_char len[3];
869c4419	42	u_char control;
15637ed4 RG	43	} rw_tape;
	44
	45	struct scsi_space
	46	{
	47	u_char op_code;
869c4419 RG	48	u_char byte2;
869c4419 RG	49	#define SS_CODE 0x03
15637ed4	50	u_char number[3];
869c4419	51	u_char control;
15637ed4 RG	52	} space;
	53	#define SP_BLKS 0
	54	#define SP_FILEMARKS 1
	55	#define SP_SEQ_FILEMARKS 2
	56	#define SP_EOM 3
	57
	58	struct scsi_write_filemarks
	59	{
	60	u_char op_code;
869c4419	61	u_char byte2;
15637ed4	62	u_char number[3];
869c4419	63	u_char control;
15637ed4 RG	64	} write_filemarks;
	65
	66	struct scsi_rewind
	67	{
	68	u_char op_code;
869c4419 RG	69	u_char byte2;
869c4419 RG	70	#define SR_IMMED 0x01
15637ed4	71	u_char unused[3];
869c4419	72	u_char control;
15637ed4 RG	73	} rewind;
	74
	75	struct scsi_load
	76	{
	77	u_char op_code;
869c4419 RG	78	u_char byte2;
869c4419 RG	79	#define SL_IMMED 0x01
15637ed4	80	u_char unused[2];
869c4419 RG	81	u_char how;
869c4419 RG	82	u_char control;
15637ed4 RG	83	} load;
	84	#define LD_UNLOAD 0
	85	#define LD_LOAD 1
869c4419 RG	86	#define LD_RETEN 2
869c4419 RG	87
15637ed4 RG	88
	89	struct scsi_blk_limits
	90	{
	91	u_char op_code;
869c4419	92	u_char byte2;
15637ed4	93	u_char unused[3];
869c4419	94	u_char control;
15637ed4 RG	95	} blk_limits;
	96
	97	/*
	98	* Opcodes
	99	*/
	100
	101	#define REWIND 0x01
	102	#define READ_BLK_LIMITS 0x05
	103	#define READ_COMMAND_TAPE 0x08
	104	#define WRITE_COMMAND_TAPE 0x0a
	105	#define WRITE_FILEMARKS 0x10
	106	#define SPACE 0x11
	107	#define LOAD_UNLOAD 0x1b /* same as above */
	108
	109
	110
	111	struct scsi_blk_limits_data
	112	{
	113	u_char reserved;
	114	u_char max_length_2; /* Most significant */
	115	u_char max_length_1;
	116	u_char max_length_0; /* Least significant */
	117	u_char min_length_1; /* Most significant */
	118	u_char min_length_0; /* Least significant */
	119	};
	120
869c4419 RG	121	/* defines for the device specific byte in the mode select/sense header */
	122	#define SMH_DSP_SPEED 0x0F
	123	#define SMH_DSP_BUFF_MODE 0x70
	124	#define SMH_DSP_BUFF_MODE_OFF 0x00
	125	#define SMH_DSP_BUFF_MODE_ON 0x10
	126	#define SMH_DSP_BUFF_MODE_MLTI 0x20
	127	#define SMH_DSP_WRITE_PROT 0x80
15637ed4	128
a0becc21 NW	129	/* A special for the CIPHER ST150S(old drive) */
	130	struct blk_desc_cipher
	131	{
	132	u_char density;
	133	u_char nblocks[3];
	134	u_char reserved;
	135	u_char blklen[3];
869c4419 RG	136	u_char other;
	137	#define ST150_SEC 0x01 /* soft error count */
	138	#define SR150_AUI 0x02 /* autoload inhibit */
a0becc21 NW	139	};
	140
	141
15637ed4	142
a0becc21 NW	143	/**********************************************************************
	144	from the scsi2 spec
	145	Value Tracks Density(bpi) Code Type Reference Note
	146	0x1 9 800 NRZI R X3.22-1983 2
	147	0x2 9 1600 PE R X3.39-1986 2
	148	0x3 9 6250 GCR R X3.54-1986 2
	149	0x5 4/9 8000 GCR C X3.136-1986 1
	150	0x6 9 3200 PE R X3.157-1987 2
	151	0x7 4 6400 IMFM C X3.116-1986 1
	152	0x8 4 8000 GCR CS X3.158-1986 1
	153	0x9 18 37871 GCR C X3B5/87-099 2
	154	0xA 22 6667 MFM C X3B5/86-199 1
	155	0xB 4 1600 PE C X3.56-1986 1
	156	0xC 24 12690 GCR C HI-TC1 1,5
	157	0xD 24 25380 GCR C HI-TC2 1,5
	158	0xF 15 10000 GCR C QIC-120 1,5
	159	0x10 18 10000 GCR C QIC-150 1,5
	160	0x11 26 16000 GCR C QIC-320(525?) 1,5
	161	0x12 30 51667 RLL C QIC-1350 1,5
	162	0x13 1 61000 DDS CS X3B5/88-185A 4
	163	0x14 1 43245 RLL CS X3.202-1991 4
	164	0x15 1 45434 RLL CS ECMA TC17 4
	165	0x16 48 10000 MFM C X3.193-1990 1
	166	0x17 48 42500 MFM C X3B5/91-174 1
	167
	168	where Code means:
	169	NRZI Non Return to Zero, change on ones
	170	GCR Group Code Recording
	171	PE Phase Encoded
	172	IMFM Inverted Modified Frequency Modulation
	173	MFM Modified Frequency Modulation
	174	DDS Dat Data Storage
	175	RLL Run Length Encoding
	176
	177	where Type means:
	178	R Real-to-Real
	179	C Cartridge
	180	CS cassette
	181
	182	where Notes means:
	183	1 Serial Recorded
	184	2 Parallel Recorded
	185	3 Old format know as QIC-11
	186	4 Helical Scan
	187	5 Not ANSI standard, rather industry standard.
	188
	189	********************************************************************/
	190
	191	#define HALFINCH_800 0x01
	192	#define HALFINCH_1600 0x02
	193	#define HALFINCH_6250 0x03
d4284689	194	#define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */
a0becc21 NW	195	#define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */
	196	#define QIC_120 0x0f
	197	#define QIC_150 0x10
	198	#define QIC_320 0x11
	199	#define QIC_525 0x11
	200	#define QIC_1320 0x12
0269d546	201	#define DDS 0x13
519fb2b7	202	#define DAT_1 0x13
15637ed4	203
519fb2b7	204	#endif /SCSI_SCSI_TAPE_H/