[unix-history] / usr / src / sys / hp300 / dev / scsireg.h

/*
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Van Jacobson of Lawrence Berkeley Laboratory.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)scsireg.h	7.1 (Berkeley) %G%
 */

/*
 * HP 98265A SCSI Interface Hardware Description.
 */

struct scsidevice {
	u_char	p0,  scsi_id;
#define			ID_MASK		0x1f
#define			SCSI_ID		0x07
#define			ID_WORD_DMA	0x20
	u_char	p2,  scsi_csr;
#define			CSR_IE		0x80
#define			CSR_IR		0x40
#define			SCSI_IPL(csr)	((((csr)>>4)&3)+3)
#define			CSR_DMA32	0x08
#define			CSR_DMAIN	0x04
#define			CSR_DE1		0x02
#define			CSR_DE0		0x01
	u_char	p4,  scsi_wrap;
#define			WRAP_REQ	0x80
#define			WRAP_ACK	0x40
#define			WRAP_BSY	0x08
#define			WRAP_MSG	0x04
#define			WRAP_CD		0x02
#define			WRAP_IO		0x01
	u_char	p6,  scsi_hconf;
#define			HCONF_TP	0x80
#define			SCSI_SYNC_XFER(hconf) (((hconf)>>5)&3)
#define			HCONF_SD	0x10
#define			HCONF_PARITY	0x08
	u_char	p8[24];
	u_char	p32, scsi_bdid;
	u_char	p34, scsi_sctl;
#define			SCTL_DISABLE	0x80
#define			SCTL_CTRLRST	0x40
#define			SCTL_DIAG	0x20
#define			SCTL_ABRT_ENAB	0x10
#define			SCTL_PARITY_ENAB 0x08
#define			SCTL_SEL_ENAB	0x04
#define			SCTL_RESEL_ENAB	0x02
#define			SCTL_INTR_ENAB	0x01
	u_char	p36, scsi_scmd;
#define			SCMD_RST	0x10
#define			SCMD_ICPT_XFR	0x08
#define			SCMD_PROG_XFR	0x04
#define			SCMD_PAD	0x01	/* if initiator */
#define			SCMD_PERR_STOP	0x01	/* if target */
			/* command codes */
#define			SCMD_BUS_REL	0x00
#define			SCMD_SELECT	0x20
#define			SCMD_RST_ATN	0x40
#define			SCMD_SET_ATN	0x60
#define			SCMD_XFR	0x80
#define			SCMD_XFR_PAUSE	0xa0
#define			SCMD_RST_ACK	0xc0
#define			SCMD_SET_ACK	0xe0
	u_char	p38, scsi_tmod;
#define			TMOD_SYNC	0x80
	u_char	p40, scsi_ints;
#define			INTS_SEL	0x80
#define			INTS_RESEL	0x40
#define			INTS_DISCON	0x20
#define			INTS_CMD_DONE	0x10
#define			INTS_SRV_REQ	0x08
#define			INTS_TIMEOUT	0x04
#define			INTS_HARD_ERR	0x02
#define			INTS_RST	0x01
	u_char	p42, scsi_psns;
#define			PSNS_REQ	0x80
#define			PSNS_ACK	0x40
#define			PSNS_ATN	0x20
#define			PSNS_SEL	0x10
#define			PSNS_BSY	0x08
	u_char	p44, scsi_ssts;
#define			SSTS_INITIATOR	0x80
#define			SSTS_TARGET	0x40
#define			SSTS_BUSY	0x20
#define			SSTS_XFR	0x10
#define			SSTS_ACTIVE	(SSTS_INITIATOR|SSTS_XFR)
#define			SSTS_RST	0x08
#define			SSTS_TCZERO	0x04
#define			SSTS_DREG_FULL	0x02
#define			SSTS_DREG_EMPTY	0x01
	u_char	p46, scsi_serr;
#define			SERR_SCSI_PAR	0x80
#define			SERR_SPC_PAR	0x40
#define			SERR_TC_PAR	0x08
#define			SERR_PHASE_ERR	0x04
#define			SERR_SHORT_XFR	0x02
#define			SERR_OFFSET	0x01
	u_char	p48, scsi_pctl;
#define			PCTL_BFINT_ENAB	0x80
	u_char	p50, scsi_mbc;
	u_char	p52, scsi_dreg;
	u_char	p54, scsi_temp;
	u_char	p56, scsi_tch;
	u_char	p58, scsi_tcm;
	u_char	p60, scsi_tcl;
	u_char	p62, scsi_exbf;
};

/* psns/pctl phase lines as bits */
#define	PHASE_MSG	0x04
#define	PHASE_CD	0x02		/* =1 if 'command' */
#define	PHASE_IO	0x01		/* =1 if data inbound */
/* Phase lines as values */
#define	PHASE		0x07		/* mask for psns/pctl phase */
#define	DATA_OUT_PHASE	0x00
#define	DATA_IN_PHASE	0x01
#define	CMD_PHASE	0x02
#define	STATUS_PHASE	0x03
#define	BUS_FREE_PHASE	0x04
#define	ARB_SEL_PHASE	0x05	/* Fuji chip combines arbitration with sel. */
#define	MESG_OUT_PHASE	0x06
#define	MESG_IN_PHASE	0x07

/* SCSI Messages */

#define	MSG_CMD_COMPLETE	0x00
#define MSG_EXT_MESSAGE		0x01
#define	MSG_SAVE_DATA_PTR	0x02
#define	MSG_RESTORE_PTR		0x03
#define	MSG_DISCONNECT		0x04
#define	MSG_INIT_DETECT_ERROR	0x05
#define	MSG_ABORT		0x06
#define	MSG_REJECT		0x07
#define	MSG_NOOP		0x08
#define	MSG_PARITY_ERROR	0x09
#define	MSG_BUS_DEVICE_RESET	0x0C
#define	MSG_IDENTIFY		0x80
#define	MSG_IDENTIFY_DR		0xc0	/* (disconnect/reconnect allowed) */
#define	MSG_SYNC_REQ 		0x01

/* SCSI Commands */

#define CMD_TEST_UNIT_READY	0x00
#define CMD_REQUEST_SENSE	0x03
#define	CMD_INQUIRY		0x12
#define CMD_SEND_DIAGNOSTIC	0x1D

#define CMD_FORMAT_UNIT		0x04
#define CMD_REASSIGN_BLOCKS	0x07
#define CMD_READ		0x08
#define CMD_WRITE		0x0A
#define CMD_MODE_SELECT		0x15
#define CMD_RELEASE_UNIT	0x17
#define CMD_MODE_SENSE		0x1A
#define CMD_SEND_DIAG		0x1D
#define CMD_READ_CAPACITY	0x25
#define CMD_READ_EXT		0x28
#define CMD_WRITE_EXT		0x2A
#define CMD_READ_DEFECT_DATA	0x37
#define		SD_MANUFAC_DEFECTS	0x14000000
#define		SD_GROWN_DEFECTS	0x0c000000
#define CMD_READ_BUFFER		0x3B
#define CMD_WRITE_BUFFER	0x3C
#define CMD_READ_FULL		0xF0
#define CMD_MEDIA_TEST		0xF1
#define CMD_ACCESS_LOG		0xF2
#define CMD_WRITE_FULL		0xFC
#define CMD_MANAGE_PRIMARY	0xFD
#define CMD_EXECUTE_DATA	0xFE

/* SCSI status bits */

#define	STS_CHECKCOND	0x02	/* Check Condition (ie., read sense) */
#define	STS_CONDMET	0x04	/* Condition Met (ie., search worked) */
#define	STS_BUSY	0x08
#define	STS_INTERMED	0x10	/* Intermediate status sent */
#define	STS_EXT		0x80	/* Extended status valid */

/* command descriptor blocks */

struct scsi_cdb6 {
	u_char	cmd;		/* command code */
	u_char	lun:  3,	/* logical unit on ctlr */
		lbah: 5;	/* msb of read/write logical block addr */
	u_char	lbam;		/* middle byte of l.b.a. */
	u_char	lbal;		/* lsb of l.b.a. */
	u_char	len;		/* transfer length */
	u_char	xtra;
};

struct scsi_cdb10 {
	u_char	cmd;		/* command code */
	u_char	lun: 3,		/* logical unit on ctlr */
		   : 4,
		rel: 1;		/* l.b.a. is relative addr if =1 */
	u_char	lbah;		/* msb of read/write logical block addr */
	u_char	lbahm;		/* high middle byte of l.b.a. */
	u_char	lbalm;		/* low middle byte of l.b.a. */
	u_char	lbal;		/* lsb of l.b.a. */
	u_char	reserved;
	u_char	lenh;		/* msb transfer length */
	u_char	lenl;		/* lsb transfer length */
	u_char	xtra;
};

/* basic sense data */

struct scsi_sense {
	u_char	valid: 1,	/* l.b.a. is valid */
		class: 3,
		code:  4;
	u_char	vu:    4,	/* vendor unique */
		lbah:  4;
	u_char	lbam;
	u_char	lbal;
};

struct scsi_xsense {
	u_char	valid: 1,	/* l.b.a. is valid */
		class: 3,
		code:  4;
	u_char	segment;
	u_char	filemark: 1,
		eom:      1,
		ili:      1,	/* illegal length indicator */
		rsvd:	  1,
		key:	  4;
	u_char	info1;
	u_char	info2;
	u_char	info3;
	u_char	info4;
	u_char	len;		/* additional sense length */
};

/* inquiry data */
struct scsi_inquiry {
	u_char	type;
	u_char	qual;
	u_char	version;
	u_char	rsvd;
	u_char	len;
	char	class[3];
	char	vendor_id[8];
	char	product_id[16];
	char	rev[4];
};

struct scsi_format_parms {		/* physical BFI format */
	u_short	reserved;
	u_short	list_len;
	struct defect {
		unsigned cyl  : 24;
		unsigned head : 8;
		long	bytes_from_index;
	} defect[127];
} format_parms;

struct scsi_reassign_parms {
	u_short	reserved;
	u_short	list_len;	/* length in bytes of defects only */
	struct new_defect {
		unsigned lba;	/* logical block address */
	} new_defect[2];
} reassign_parms;

struct scsi_modesel_hdr {
	u_char	rsvd1;
	u_char	media_type;
	u_char 	rsvd2;
	u_char	block_desc_len;
	u_int	density		: 8;
	u_int	number_blocks	:24;
	u_int	rsvd3		: 8;
	u_int	block_length	:24;
}; 

struct scsi_modesense_hdr {
	u_char	len;
	u_char	media_type;
	u_char 	wp    : 1;
	u_char 	rsvd1 : 7;
	u_char	block_desc_len;
	u_int	density		: 8;
	u_int	number_blocks	:24;
	u_int	rsvd2		: 8;
	u_int	block_length	:24;
}; 

/*
 * Mode Select / Mode sense "pages"
 */

/*
 * Page One - Error Recovery Parameters 
 */
struct scsi_err_recovery {
	u_char	page_savable	: 1;	/* save parameters */
	u_char	reserved	: 1;
	u_char	page_code	: 6;	/* = 0x01 */
	u_char	page_length;		/* = 6 */
	u_char	awre		: 1;	/* auto write realloc enabled */
	u_char	arre		: 1;	/* auto read realloc enabled */
	u_char	tb		: 1;	/* transfer block */
	u_char 	rc		: 1;	/* read continuous */
	u_char	eec		: 1;	/* enable early correction */
	u_char	per		: 1;	/* post error */
	u_char	dte		: 1;	/* disable transfer on error */
	u_char	dcr		: 1;	/* disable correction */
	u_char	retry_count;
	u_char	correction_span;
	u_char	head_offset_count;
	u_char	strobe_offset_count;
	u_char	recovery_time_limit;
};

/*
 * Page Two - Disconnect / Reconnect Control Parameters
 */
struct scsi_disco_reco {
	u_char	page_savable	: 1;	/* save parameters */
	u_char	rsvd		: 1;
	u_char	page_code	: 6;	/* = 0x02 */
	u_char	page_length;		/* = 10 */
	u_char	buffer_full_ratio;	/* write, how full before reconnect? */
	u_char	buffer_empty_ratio;	/* read, how full before reconnect? */

	u_short	bus_inactivity_limit;	/* how much bus time for busy */
	u_short	disconnect_time_limit;	/* min to remain disconnected */
	u_short	connect_time_limit;	/* min to remain connected */
	u_short	reserved_1;
};

/*
 * Page Three - Direct Access Device Format Parameters
 */
struct scsi_format {
	u_char	page_savable	: 1;	/* save parameters */
	u_char	rsvd		: 1;
	u_char	page_code	: 6;	/* = 0x03 */
	u_char	page_length;		/* = 22 */
	u_short	tracks_per_zone;	/*  Handling of Defects Fields */
	u_short	alt_sect_zone;
	u_short alt_tracks_zone;
	u_short	alt_tracks_vol;
	u_short	sect_track;		/* Track Format Field */
	u_short data_sect;		/* Sector Format Fields */
	u_short	interleave;
	u_short	track_skew_factor;
	u_short	cyl_skew_factor;
	u_char	ssec		: 1;	/* Drive Type Field */
	u_char	hsec		: 1;
	u_char	rmb		: 1;
	u_char	surf		: 1;
	u_char	ins		: 1;
	u_char	reserved_1	: 3;
	u_char	reserved_2;
	u_char	reserved_3;
	u_char	reserved_4;
};

/*
 * Page Four - Rigid Disk Drive Geometry Parameters 
 */
struct scsi_geometry {
	u_char	page_savable	: 1;	/* save parameters */
	u_char	rsvd		: 1;
	u_char	page_code	: 6;	/* = 0x04 */
	u_char	page_length;		/* = 18 */
	u_char	cyl_ub;			/* number of cylinders */
	u_char	cyl_mb;
	u_char	cyl_lb;
	u_char	heads;			/* number of heads */
	u_char	precomp_cyl_ub;		/* cylinder to start precomp */
	u_char	precomp_cyl_mb;
	u_char	precomp_cyl_lb;
	u_char	current_cyl_ub;		/* cyl to start reduced current */
	u_char	current_cyl_mb;
	u_char	current_cyl_lb;
	u_short	step_rate;		/* drive step rate */
	u_char	landing_cyl_ub;		/* landing zone cylinder */
	u_char	landing_cyl_mb;
	u_char	landing_cyl_lb;
	u_char	reserved_1;
	u_char	reserved_2;
	u_char	reserved_3;
};

/*
 * Page 0x38 - Cache Control Parameters
 */
struct scsi_cache {
	u_char	page_savable	: 1;	/* save parameters */
	u_char	rsvd		: 1;
	u_char	page_code	: 6;	/* = 0x38 */
	u_char	page_length;		/* = 14 */
	u_char rsvd_1	: 1;
	u_char wie	: 1; 		/* write index enable */
	u_char rsvd_2	: 1;
	u_char ce	: 1; 		/* cache enable */
	u_char table_size : 4;
	u_char	prefetch_threshold;
	u_char	maximum_threshold;
	u_char	maximumprefetch_multiplier;
	u_char	minimum_threshold;
	u_char	minimum_prefetch_multiplier;
	u_char	reserved[8];
};

/*
 * Driver ioctl's for various scsi operations.
 */
#ifndef _IOCTL_
#include "ioctl.h"
#endif

/*
 * Control for SCSI "format" mode.
 *
 * "Format" mode allows a privileged process to issue direct SCSI
 * commands to a drive (it is intended primarily to allow on-line
 * formatting).  SDIOCSFORMAT with a non-zero arg will put the drive
 * into format mode; a zero arg will take it out.  When in format
 * mode, only the process that issued the SDIOCFORMAT can read or
 * write the drive.
 *
 * In format mode, process is expected to
 *	- do SDIOCSCSICOMMAND to supply cdb for next SCSI op
 *	- do read or write as appropriate for cdb
 *	- if i/o error, optionally do SDIOCSENSE to get completion
 *	  status and sense data from last scsi operation.
 */

struct scsi_fmt_cdb {
	int len;		/* cdb length (in bytes) */
	u_char cdb[28];		/* cdb to use on next read/write */
};

struct scsi_fmt_sense {
	u_int status;		/* completion status of last op */
	u_char sense[28];	/* sense data (if any) from last op */
};

#define	SDIOCSFORMAT		_IOW('S', 0x1, int)
#define	SDIOCGFORMAT		_IOR('S', 0x2, int)
#define	SDIOCSCSICOMMAND	_IOW('S', 0x3, struct scsi_fmt_cdb)
#define	SDIOCSENSE		_IOR('S', 0x4, struct scsi_fmt_sense)
Commit	Line	Data
60f56dfc KM	1	/*
	2	* Copyright (c) 1990 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Van Jacobson of Lawrence Berkeley Laboratory.
	7	*
	8	* %sccs.include.redist.c%
	9	*
	10	* @(#)scsireg.h 7.1 (Berkeley) %G%
	11	*/
	12
	13	/*
	14	* HP 98265A SCSI Interface Hardware Description.
	15	*/
	16
	17	struct scsidevice {
	18	u_char p0, scsi_id;
	19	#define ID_MASK 0x1f
	20	#define SCSI_ID 0x07
	21	#define ID_WORD_DMA 0x20
	22	u_char p2, scsi_csr;
	23	#define CSR_IE 0x80
	24	#define CSR_IR 0x40
	25	#define SCSI_IPL(csr) ((((csr)>>4)&3)+3)
	26	#define CSR_DMA32 0x08
	27	#define CSR_DMAIN 0x04
	28	#define CSR_DE1 0x02
	29	#define CSR_DE0 0x01
	30	u_char p4, scsi_wrap;
	31	#define WRAP_REQ 0x80
	32	#define WRAP_ACK 0x40
	33	#define WRAP_BSY 0x08
	34	#define WRAP_MSG 0x04
	35	#define WRAP_CD 0x02
	36	#define WRAP_IO 0x01
	37	u_char p6, scsi_hconf;
	38	#define HCONF_TP 0x80
	39	#define SCSI_SYNC_XFER(hconf) (((hconf)>>5)&3)
	40	#define HCONF_SD 0x10
	41	#define HCONF_PARITY 0x08
	42	u_char p8[24];
	43	u_char p32, scsi_bdid;
	44	u_char p34, scsi_sctl;
	45	#define SCTL_DISABLE 0x80
	46	#define SCTL_CTRLRST 0x40
	47	#define SCTL_DIAG 0x20
	48	#define SCTL_ABRT_ENAB 0x10
	49	#define SCTL_PARITY_ENAB 0x08
	50	#define SCTL_SEL_ENAB 0x04
	51	#define SCTL_RESEL_ENAB 0x02
	52	#define SCTL_INTR_ENAB 0x01
	53	u_char p36, scsi_scmd;
	54	#define SCMD_RST 0x10
	55	#define SCMD_ICPT_XFR 0x08
	56	#define SCMD_PROG_XFR 0x04
	57	#define SCMD_PAD 0x01 /* if initiator */
	58	#define SCMD_PERR_STOP 0x01 /* if target */
	59	/* command codes */
	60	#define SCMD_BUS_REL 0x00
	61	#define SCMD_SELECT 0x20
	62	#define SCMD_RST_ATN 0x40
	63	#define SCMD_SET_ATN 0x60
	64	#define SCMD_XFR 0x80
65	#define SCMD_XFR_PAUSE 0xa0
66	#define SCMD_RST_ACK 0xc0
67	#define SCMD_SET_ACK 0xe0
68	u_char p38, scsi_tmod;
69	#define TMOD_SYNC 0x80
70	u_char p40, scsi_ints;
71	#define INTS_SEL 0x80
72	#define INTS_RESEL 0x40
73	#define INTS_DISCON 0x20
74	#define INTS_CMD_DONE 0x10
75	#define INTS_SRV_REQ 0x08
76	#define INTS_TIMEOUT 0x04
77	#define INTS_HARD_ERR 0x02
78	#define INTS_RST 0x01
79	u_char p42, scsi_psns;
80	#define PSNS_REQ 0x80
81	#define PSNS_ACK 0x40
82	#define PSNS_ATN 0x20
83	#define PSNS_SEL 0x10
84	#define PSNS_BSY 0x08
85	u_char p44, scsi_ssts;
86	#define SSTS_INITIATOR 0x80
87	#define SSTS_TARGET 0x40
88	#define SSTS_BUSY 0x20
89	#define SSTS_XFR 0x10
90	#define SSTS_ACTIVE (SSTS_INITIATOR\|SSTS_XFR)
91	#define SSTS_RST 0x08
92	#define SSTS_TCZERO 0x04
93	#define SSTS_DREG_FULL 0x02
94	#define SSTS_DREG_EMPTY 0x01
95	u_char p46, scsi_serr;
96	#define SERR_SCSI_PAR 0x80
97	#define SERR_SPC_PAR 0x40
98	#define SERR_TC_PAR 0x08
99	#define SERR_PHASE_ERR 0x04
100	#define SERR_SHORT_XFR 0x02
101	#define SERR_OFFSET 0x01
102	u_char p48, scsi_pctl;
103	#define PCTL_BFINT_ENAB 0x80
104	u_char p50, scsi_mbc;
105	u_char p52, scsi_dreg;
106	u_char p54, scsi_temp;
107	u_char p56, scsi_tch;
108	u_char p58, scsi_tcm;
109	u_char p60, scsi_tcl;
110	u_char p62, scsi_exbf;
111	};
112
113	/* psns/pctl phase lines as bits */
114	#define PHASE_MSG 0x04
115	#define PHASE_CD 0x02 /* =1 if 'command' */
116	#define PHASE_IO 0x01 /* =1 if data inbound */
117	/* Phase lines as values */
118	#define PHASE 0x07 /* mask for psns/pctl phase */
119	#define DATA_OUT_PHASE 0x00
120	#define DATA_IN_PHASE 0x01
121	#define CMD_PHASE 0x02
122	#define STATUS_PHASE 0x03
123	#define BUS_FREE_PHASE 0x04
124	#define ARB_SEL_PHASE 0x05 /* Fuji chip combines arbitration with sel. */
125	#define MESG_OUT_PHASE 0x06
126	#define MESG_IN_PHASE 0x07
127
128	/* SCSI Messages */
129
130	#define MSG_CMD_COMPLETE 0x00
131	#define MSG_EXT_MESSAGE 0x01
132	#define MSG_SAVE_DATA_PTR 0x02
133	#define MSG_RESTORE_PTR 0x03
134	#define MSG_DISCONNECT 0x04
135	#define MSG_INIT_DETECT_ERROR 0x05
136	#define MSG_ABORT 0x06
137	#define MSG_REJECT 0x07
138	#define MSG_NOOP 0x08
139	#define MSG_PARITY_ERROR 0x09
140	#define MSG_BUS_DEVICE_RESET 0x0C
141	#define MSG_IDENTIFY 0x80
142	#define MSG_IDENTIFY_DR 0xc0 /* (disconnect/reconnect allowed) */
143	#define MSG_SYNC_REQ 0x01
144
145	/* SCSI Commands */
146
147	#define CMD_TEST_UNIT_READY 0x00
148	#define CMD_REQUEST_SENSE 0x03
149	#define CMD_INQUIRY 0x12
150	#define CMD_SEND_DIAGNOSTIC 0x1D
151
152	#define CMD_FORMAT_UNIT 0x04
153	#define CMD_REASSIGN_BLOCKS 0x07
154	#define CMD_READ 0x08
155	#define CMD_WRITE 0x0A
156	#define CMD_MODE_SELECT 0x15
157	#define CMD_RELEASE_UNIT 0x17
158	#define CMD_MODE_SENSE 0x1A
159	#define CMD_SEND_DIAG 0x1D
160	#define CMD_READ_CAPACITY 0x25
161	#define CMD_READ_EXT 0x28
162	#define CMD_WRITE_EXT 0x2A
163	#define CMD_READ_DEFECT_DATA 0x37
164	#define SD_MANUFAC_DEFECTS 0x14000000
165	#define SD_GROWN_DEFECTS 0x0c000000
166	#define CMD_READ_BUFFER 0x3B
167	#define CMD_WRITE_BUFFER 0x3C
168	#define CMD_READ_FULL 0xF0
169	#define CMD_MEDIA_TEST 0xF1
170	#define CMD_ACCESS_LOG 0xF2
171	#define CMD_WRITE_FULL 0xFC
172	#define CMD_MANAGE_PRIMARY 0xFD
173	#define CMD_EXECUTE_DATA 0xFE
174
175	/* SCSI status bits */
176
177	#define STS_CHECKCOND 0x02 /* Check Condition (ie., read sense) */
178	#define STS_CONDMET 0x04 /* Condition Met (ie., search worked) */
179	#define STS_BUSY 0x08
180	#define STS_INTERMED 0x10 /* Intermediate status sent */
181	#define STS_EXT 0x80 /* Extended status valid */
182
183	/* command descriptor blocks */
184
185	struct scsi_cdb6 {
186	u_char cmd; /* command code */
187	u_char lun: 3, /* logical unit on ctlr */
188	lbah: 5; /* msb of read/write logical block addr */
189	u_char lbam; /* middle byte of l.b.a. */
190	u_char lbal; /* lsb of l.b.a. */
191	u_char len; /* transfer length */
192	u_char xtra;
193	};
194
195	struct scsi_cdb10 {
196	u_char cmd; /* command code */
197	u_char lun: 3, /* logical unit on ctlr */
198	: 4,
199	rel: 1; /* l.b.a. is relative addr if =1 */
200	u_char lbah; /* msb of read/write logical block addr */
201	u_char lbahm; /* high middle byte of l.b.a. */
202	u_char lbalm; /* low middle byte of l.b.a. */
203	u_char lbal; /* lsb of l.b.a. */
204	u_char reserved;
205	u_char lenh; /* msb transfer length */
206	u_char lenl; /* lsb transfer length */
207	u_char xtra;
208	};
209
210	/* basic sense data */
211
212	struct scsi_sense {
213	u_char valid: 1, /* l.b.a. is valid */
214	class: 3,
215	code: 4;
216	u_char vu: 4, /* vendor unique */
217	lbah: 4;
218	u_char lbam;
219	u_char lbal;
220	};
221
222	struct scsi_xsense {
223	u_char valid: 1, /* l.b.a. is valid */
224	class: 3,
225	code: 4;
226	u_char segment;
227	u_char filemark: 1,
228	eom: 1,
229	ili: 1, /* illegal length indicator */
230	rsvd: 1,
231	key: 4;
232	u_char info1;
233	u_char info2;
234	u_char info3;
235	u_char info4;
236	u_char len; /* additional sense length */
237	};
238
239	/* inquiry data */
240	struct scsi_inquiry {
241	u_char type;
242	u_char qual;
243	u_char version;
244	u_char rsvd;
245	u_char len;
246	char class[3];
247	char vendor_id[8];
248	char product_id[16];
249	char rev[4];
250	};
251
252	struct scsi_format_parms { /* physical BFI format */
253	u_short reserved;
254	u_short list_len;
255	struct defect {
256	unsigned cyl : 24;
257	unsigned head : 8;
258	long bytes_from_index;
259	} defect[127];
260	} format_parms;
261
262	struct scsi_reassign_parms {
263	u_short reserved;
264	u_short list_len; /* length in bytes of defects only */
265	struct new_defect {
266	unsigned lba; /* logical block address */
267	} new_defect[2];
268	} reassign_parms;
269
270	struct scsi_modesel_hdr {
271	u_char rsvd1;
272	u_char media_type;
273	u_char rsvd2;
274	u_char block_desc_len;
275	u_int density : 8;
276	u_int number_blocks :24;
277	u_int rsvd3 : 8;
278	u_int block_length :24;
279	};
280
281	struct scsi_modesense_hdr {
282	u_char len;
283	u_char media_type;
284	u_char wp : 1;
285	u_char rsvd1 : 7;
286	u_char block_desc_len;
287	u_int density : 8;
288	u_int number_blocks :24;
289	u_int rsvd2 : 8;
290	u_int block_length :24;
291	};
292
293	/*
294	* Mode Select / Mode sense "pages"
295	*/
296
297	/*
298	* Page One - Error Recovery Parameters
299	*/
300	struct scsi_err_recovery {
301	u_char page_savable : 1; /* save parameters */
302	u_char reserved : 1;
303	u_char page_code : 6; /* = 0x01 */
304	u_char page_length; /* = 6 */
305	u_char awre : 1; /* auto write realloc enabled */
306	u_char arre : 1; /* auto read realloc enabled */
307	u_char tb : 1; /* transfer block */
308	u_char rc : 1; /* read continuous */
309	u_char eec : 1; /* enable early correction */
310	u_char per : 1; /* post error */
311	u_char dte : 1; /* disable transfer on error */
312	u_char dcr : 1; /* disable correction */
313	u_char retry_count;
314	u_char correction_span;
315	u_char head_offset_count;
316	u_char strobe_offset_count;
317	u_char recovery_time_limit;
318	};
319
320	/*
321	* Page Two - Disconnect / Reconnect Control Parameters
322	*/
323	struct scsi_disco_reco {
324	u_char page_savable : 1; /* save parameters */
325	u_char rsvd : 1;
326	u_char page_code : 6; /* = 0x02 */
327	u_char page_length; /* = 10 */
328	u_char buffer_full_ratio; /* write, how full before reconnect? */
329	u_char buffer_empty_ratio; /* read, how full before reconnect? */
330
331	u_short bus_inactivity_limit; /* how much bus time for busy */
332	u_short disconnect_time_limit; /* min to remain disconnected */
333	u_short connect_time_limit; /* min to remain connected */
334	u_short reserved_1;
335	};
336
337	/*
338	* Page Three - Direct Access Device Format Parameters
339	*/
340	struct scsi_format {
341	u_char page_savable : 1; /* save parameters */
342	u_char rsvd : 1;
343	u_char page_code : 6; /* = 0x03 */
344	u_char page_length; /* = 22 */
345	u_short tracks_per_zone; /* Handling of Defects Fields */
346	u_short alt_sect_zone;
347	u_short alt_tracks_zone;
348	u_short alt_tracks_vol;
349	u_short sect_track; /* Track Format Field */
350	u_short data_sect; /* Sector Format Fields */
351	u_short interleave;
352	u_short track_skew_factor;
353	u_short cyl_skew_factor;
354	u_char ssec : 1; /* Drive Type Field */
355	u_char hsec : 1;
356	u_char rmb : 1;
357	u_char surf : 1;
358	u_char ins : 1;
359	u_char reserved_1 : 3;
360	u_char reserved_2;
361	u_char reserved_3;
362	u_char reserved_4;
363	};
364
365	/*
366	* Page Four - Rigid Disk Drive Geometry Parameters
367	*/
368	struct scsi_geometry {
369	u_char page_savable : 1; /* save parameters */
370	u_char rsvd : 1;
371	u_char page_code : 6; /* = 0x04 */
372	u_char page_length; /* = 18 */
373	u_char cyl_ub; /* number of cylinders */
374	u_char cyl_mb;
375	u_char cyl_lb;
376	u_char heads; /* number of heads */
377	u_char precomp_cyl_ub; /* cylinder to start precomp */
378	u_char precomp_cyl_mb;
379	u_char precomp_cyl_lb;
380	u_char current_cyl_ub; /* cyl to start reduced current */
381	u_char current_cyl_mb;
382	u_char current_cyl_lb;
383	u_short step_rate; /* drive step rate */
384	u_char landing_cyl_ub; /* landing zone cylinder */
385	u_char landing_cyl_mb;
386	u_char landing_cyl_lb;
387	u_char reserved_1;
388	u_char reserved_2;
389	u_char reserved_3;
390	};
391
392	/*
393	* Page 0x38 - Cache Control Parameters
394	*/
395	struct scsi_cache {
396	u_char page_savable : 1; /* save parameters */
397	u_char rsvd : 1;
398	u_char page_code : 6; /* = 0x38 */
399	u_char page_length; /* = 14 */
400	u_char rsvd_1 : 1;
401	u_char wie : 1; /* write index enable */
402	u_char rsvd_2 : 1;
403	u_char ce : 1; /* cache enable */
404	u_char table_size : 4;
405	u_char prefetch_threshold;
406	u_char maximum_threshold;
407	u_char maximumprefetch_multiplier;
408	u_char minimum_threshold;
409	u_char minimum_prefetch_multiplier;
410	u_char reserved[8];
411	};
412
413	/*
414	* Driver ioctl's for various scsi operations.
415	*/
416	#ifndef _IOCTL_
417	#include "ioctl.h"
418	#endif
419
420	/*
421	* Control for SCSI "format" mode.
422	*
423	* "Format" mode allows a privileged process to issue direct SCSI
424	* commands to a drive (it is intended primarily to allow on-line
425	* formatting). SDIOCSFORMAT with a non-zero arg will put the drive
426	* into format mode; a zero arg will take it out. When in format
427	* mode, only the process that issued the SDIOCFORMAT can read or
428	* write the drive.
429	*
430	* In format mode, process is expected to
431	* - do SDIOCSCSICOMMAND to supply cdb for next SCSI op
432	* - do read or write as appropriate for cdb
433	* - if i/o error, optionally do SDIOCSENSE to get completion
434	* status and sense data from last scsi operation.
435	*/
436
437	struct scsi_fmt_cdb {
438	int len; /* cdb length (in bytes) */
439	u_char cdb[28]; /* cdb to use on next read/write */
440	};
441
442	struct scsi_fmt_sense {
443	u_int status; /* completion status of last op */
444	u_char sense[28]; /* sense data (if any) from last op */
445	};
446
447	#define SDIOCSFORMAT _IOW('S', 0x1, int)
448	#define SDIOCGFORMAT _IOR('S', 0x2, int)
449	#define SDIOCSCSICOMMAND _IOW('S', 0x3, struct scsi_fmt_cdb)
450	#define SDIOCSENSE _IOR('S', 0x4, struct scsi_fmt_sense)