[unix-history] / usr / src / sys / tahoe / vba / cyreg.h

/*
 * Copyright (c) 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Computer Consoles Inc.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)cyreg.h	7.8 (Berkeley) %G%
 */

/*
 * Tapemaster controller definitions.
 */

/*
 * With 20-bit addressing, the intermediate buffer
 * must be allocated early in startup().
 */
#define	CYMAXIO	(64*1024)		/* max i/o size + 1 */
char	*cybuf;

/* for byte swapping Multibus values */
#define	htoms(x) (u_short)((((x)>>8)&0xff) | (((x)<<8)&0xff00))

#define	b_repcnt  b_bcount
#define	b_command b_resid

/*
 * System configuration pointer.
 * Memory address is jumpered on controller.
 */
struct	cyscp {
	char	csp_buswidth;	/* system bus width */
#define	CSP_16BITS	1	/* 16-bit system bus */
#define	CSP_8BITS	0	/* 8-bit system bus */
	char	csp_unused;
	u_char	csp_scb[4];	/* point to system config block */
};

/*
 * System configuration block
 */
struct	cyscb {
	char	csb_fixed;	/* fixed value code (must be 3) */
	char	csb_unused;	/* unused */
	u_char	csb_ccb[4];	/* pointer to channel control block */
};

#define	CSB_FIXED	0x3

/*
 * Channel control block definitions
 */
struct	cyccb {
	char	cbcw;		/* channel control word */
	char	cbgate;		/* tpb access gate */
	u_char	cbtpb[4];	/* first tape parameter block */
};

#define	GATE_OPEN	(char)(0x00)
#define	GATE_CLOSED	(char)(0xff)

#define	CY_GO(addr)	movob((addr), 0xff)	/* channel attention */
#define	CY_RESET(addr)  movob((addr)+1, 0xff) 	/* software controller reset */

#define	CBCW_IE		0x11		/* interrupt on cmd completion */
#define	CBCW_CLRINT	0x09		/* clear active interrupt */

/*
 * Tape parameter block definitions
 */
struct	cytpb {
	u_long	tpcmd;		/* command, see below */
	u_short	tpcontrol;	/* control word */
	u_short	tpcount;	/* return count */
	u_short	tpsize;		/* buffer size */
	u_short	tprec;		/* records/overrun */
	u_char	tpdata[4];	/* pointer to source/dest */
	u_short	tpstatus;	/* status */
	u_char	tplink[4];	/* pointer to next parameter block */
};

/* control field bit definitions */
#define	CYCW_UNIT	(0x000c<<8) 	/* unit select mask, 2 bit field */
#define	CYCW_IE		(0x0020<<8)	/* interrupt enable */
#define	CYCW_LOCK	(0x0080<<8)	/* bus lock flag */
#define	CYCW_REV	(0x0400>>8)	/* reverse flag */
#define	CYCW_SPEED	(0x0800>>8)	/* speed/density */
#define	    CYCW_25IPS	0
#define	    CYCW_100IPS	(0x0800>>8)
#define	CYCW_WIDTH  	(0x8000>>8)	/* width */
#define	    CYCW_8BITS	0
#define	    CYCW_16BITS	(0x8000>>8)

#define	CYCW_BITS	"\20\3REV\005100IPS\00716BITS\16IE\20LOCK"

/*
 * Controller commands
 */

/* control status/commands */
#define	CY_CONFIG	(0x00<<24)	/* configure */
#define	CY_NOP		(0x20<<24)	/* no operation */
#define	CY_SETPAGE	(0x08<<24)	/* set page (addr bits 20-23) */
#define	CY_SENSE	(0x28<<24)	/* drive status */
#define	CY_CLRINT	(0x9c<<24)	/* clear Multibus interrupt */

/* tape position commands */
#define	CY_REW		(0x34<<24)	/* rewind tape */
#define	CY_OFFL		(0x38<<24)	/* off_line and unload */
#define	CY_WEOF		(0x40<<24)	/* write end-of-file mark */
#define	CY_SFORW	(0x70<<24)	/* space record forward */
#define	CY_SREV		(CY_SFORW|CYCW_REV) /* space record backwards */
#define	CY_FSF		(0x44<<24)	/* space file forward */
#define	CY_BSF		(CY_FSF|CYCW_REV) /* space file backwards */
#define	CY_ERASE	(0x4c<<24)	/* erase record */

/* data transfer commands */
#define	CY_BRCOM	(0x10<<24)	/* read buffered */
#define	CY_BWCOM	(0x14<<24)	/* write buffered */
#define	CY_RCOM		(0x2c<<24)	/* read tape unbuffered */
#define	CY_WCOM		(0x30<<24)	/* write tape unbuffered */

/* status field bit definitions */
#define	CYS_WP		(0x0002<<8)	/* write protected, no write ring */
#define	CYS_BSY		(0x0004<<8)	/* formatter busy */
#define	CYS_RDY		(0x0008<<8)	/* drive ready */
#define	CYS_EOT		(0x0010<<8)	/* end of tape detected */
#define	CYS_BOT		(0x0020<<8)	/* tape is at load point */
#define	CYS_OL		(0x0040<<8)	/* drive on_line */
#define	CYS_FM		(0x0080<<8)	/* filemark detected */
#define	CYS_ERR		(0x1f00>>8)	/* error value mask */
#define	CYS_CR		(0x2000>>8)	/* controller executed retries */
#define	CYS_CC		(0x4000>>8)	/* command completed successfully */
#define	CYS_CE		(0x8000>>8)	/* command execution has begun */

#define	CYS_BITS "\20\6CR\7CC\10CE\12WP\13BSY\14RDY\15EOT/BOT\16BOT\17OL\20FM"

/* error codes for CYS_ERR */
#define	CYER_TIMOUT	0x01	/* timed out data busy false */
#define	CYER_TIMOUT1	0x02	/* data busy false,formatter,ready */
#define	CYER_TIMOUT2	0x03	/* time out ready busy false */
#define	CYER_TIMOUT3	0x04	/* time out ready busy true */
#define	CYER_TIMOUT4	0x05	/* time out data busy true */
#define	CYER_NXM	0x06	/* time out memory */
#define	CYER_BLANK	0x07	/* blank tape */
#define	CYER_DIAG	0x08	/* micro-diagnostic */
#define	CYER_EOT	0x09	/* EOT forward, BOT rev. */
#define	CYER_BOT	0x09	/* EOT forward, BOT rev. */
#define	CYER_HERR	0x0a	/* retry unsuccessful */
#define	CYER_FIFO	0x0b	/* FIFO over/under flow */
#define	CYER_PARITY	0x0d	/* drive to tapemaster parity error */
#define	CYER_CKSUM	0x0e	/* prom checksum */
#define	CYER_STROBE	0x0f	/* time out tape strobe */
#define	CYER_NOTRDY	0x10	/* tape not ready */
#define	CYER_PROT	0x11	/* write, no enable ring */
#define	CYER_JUMPER	0x13	/* missing diagnostic jumper */
#define	CYER_LINK	0x14	/* bad link, link inappropriate */
#define	CYER_FM		0x15	/* unexpected filemark */
#define	CYER_PARAM	0x16	/* bad parameter, byte count ? */
#define	CYER_HDWERR	0x18	/* unidentified hardware error */
#define	CYER_NOSTRM	0x19	/* streaming terminated */

#ifdef CYERROR
char	*cyerror[] = {
	"no error",
	"timeout",
	"timeout1",
	"timeout2",
	"timeout3",
	"timeout4", 
	"non-existent memory",
	"blank tape",
	"micro-diagnostic",
	"eot/bot detected",
	"retry unsuccessful",
	"fifo over/under-flow",
	"#0xc",
	"drive to controller parity error",
	"prom checksum",
	"time out tape strobe (record length error)",
	"tape not ready",
	"write protected",
	"#0x12",
	"missing diagnostic jumper",
	"invalid link pointer",
	"unexpected file mark",
	"invalid byte count/parameter",
	"#0x17",
	"unidentified hardware error",
	"streaming terminated"
};
#define	NCYERROR	(sizeof (cyerror) / sizeof (cyerror[0]))
#endif

/*
 * Masks defining hard and soft errors (must check against 1<<CYER_code).
 */
#define	CYMASK(e)	(1 << (e))
#define	CYER_HARD	(CYMASK(CYER_TIMOUT)|CYMASK(CYER_TIMOUT1)|\
	CYMASK(CYER_TIMOUT2)|CYMASK(CYER_TIMOUT3)|CYMASK(CYER_TIMOUT4)|\
	CYMASK(CYER_NXM)|CYMASK(CYER_DIAG)|CYMASK(CYER_JUMPER)|\
	CYMASK(CYER_STROBE)|CYMASK(CYER_PROT)|CYMASK(CYER_CKSUM)|\
	CYMASK(CYER_HERR)|CYMASK(CYER_BLANK))
#define	CYER_RSOFT	(CYMASK(CYER_FIFO)|CYMASK(CYER_NOTRDY)|\
	CYMASK(CYER_PARITY))
#define	CYER_WSOFT	(CYMASK(CYER_HERR)|CYMASK(CYER_FIFO)|\
	CYMASK(CYER_NOTRDY)|CYMASK(CYER_PARITY))
Commit	Line	Data
bf9edb82 KB	1	/*
	2	* Copyright (c) 1988 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Computer Consoles Inc.
	7	*
b702c21d	8	* %sccs.include.redist.c%
bf9edb82	9	*
b702c21d	10	* @(#)cyreg.h 7.8 (Berkeley) %G%
bf9edb82	11	*/
d62077b1 SL	12
	13	/*
	14	* Tapemaster controller definitions.
	15	*/
	16
7aefbaf7 MK	17	/*
	18	* With 20-bit addressing, the intermediate buffer
	19	* must be allocated early in startup().
	20	*/
29a6143e	21	#define CYMAXIO (641024) / max i/o size + 1 */
7aefbaf7 MK	22	char *cybuf;
7aefbaf7 MK	23
d62077b1	24	/* for byte swapping Multibus values */
0995dc78	25	#define htoms(x) (u_short)((((x)>>8)&0xff) \| (((x)<<8)&0xff00))
d62077b1 SL	26
	27	#define b_repcnt b_bcount
	28	#define b_command b_resid
	29
82bc5dc5 MK	30	/*
	31	* System configuration pointer.
	32	* Memory address is jumpered on controller.
	33	*/
	34	struct cyscp {
	35	char csp_buswidth; /* system bus width */
	36	#define CSP_16BITS 1 /* 16-bit system bus */
	37	#define CSP_8BITS 0 /* 8-bit system bus */
	38	char csp_unused;
	39	u_char csp_scb[4]; /* point to system config block */
	40	};
	41
	42	/*
	43	* System configuration block
	44	*/
	45	struct cyscb {
	46	char csb_fixed; /* fixed value code (must be 3) */
	47	char csb_unused; /* unused */
	48	u_char csb_ccb[4]; /* pointer to channel control block */
	49	};
	50
	51	#define CSB_FIXED 0x3
	52
d62077b1 SL	53	/*
	54	* Channel control block definitions
	55	*/
	56	struct cyccb {
	57	char cbcw; /* channel control word */
	58	char cbgate; /* tpb access gate */
82bc5dc5	59	u_char cbtpb[4]; /* first tape parameter block */
d62077b1 SL	60	};
	61
	62	#define GATE_OPEN (char)(0x00)
	63	#define GATE_CLOSED (char)(0xff)
	64
	65	#define CY_GO(addr) movob((addr), 0xff) /* channel attention */
	66	#define CY_RESET(addr) movob((addr)+1, 0xff) /* software controller reset */
	67
	68	#define CBCW_IE 0x11 /* interrupt on cmd completion */
	69	#define CBCW_CLRINT 0x09 /* clear active interrupt */
	70
	71	/*
	72	* Tape parameter block definitions
	73	*/
	74	struct cytpb {
29a6143e MK	75	u_long tpcmd; /* command, see below */
	76	u_short tpcontrol; /* control word */
	77	u_short tpcount; /* return count */
	78	u_short tpsize; /* buffer size */
	79	u_short tprec; /* records/overrun */
82bc5dc5	80	u_char tpdata[4]; /* pointer to source/dest */
29a6143e	81	u_short tpstatus; /* status */
82bc5dc5	82	u_char tplink[4]; /* pointer to next parameter block */
d62077b1 SL	83	};
	84
	85	/* control field bit definitions */
	86	#define CYCW_UNIT (0x000c<<8) /* unit select mask, 2 bit field */
	87	#define CYCW_IE (0x0020<<8) /* interrupt enable */
	88	#define CYCW_LOCK (0x0080<<8) /* bus lock flag */
	89	#define CYCW_REV (0x0400>>8) /* reverse flag */
	90	#define CYCW_SPEED (0x0800>>8) /* speed/density */
	91	#define CYCW_25IPS 0
	92	#define CYCW_100IPS (0x0800>>8)
	93	#define CYCW_WIDTH (0x8000>>8) /* width */
	94	#define CYCW_8BITS 0
	95	#define CYCW_16BITS (0x8000>>8)
	96
	97	#define CYCW_BITS "\20\3REV\005100IPS\00716BITS\16IE\20LOCK"
	98
	99	/*
	100	* Controller commands
	101	*/
	102
	103	/* control status/commands */
	104	#define CY_CONFIG (0x00<<24) /* configure */
	105	#define CY_NOP (0x20<<24) /* no operation */
82bc5dc5	106	#define CY_SETPAGE (0x08<<24) /* set page (addr bits 20-23) */
d62077b1 SL	107	#define CY_SENSE (0x28<<24) /* drive status */
	108	#define CY_CLRINT (0x9c<<24) /* clear Multibus interrupt */
	109
	110	/* tape position commands */
	111	#define CY_REW (0x34<<24) /* rewind tape */
	112	#define CY_OFFL (0x38<<24) /* off_line and unload */
	113	#define CY_WEOF (0x40<<24) /* write end-of-file mark */
	114	#define CY_SFORW (0x70<<24) /* space record forward */
82bc5dc5 MK	115	#define CY_SREV (CY_SFORW\|CYCW_REV) /* space record backwards */
	116	#define CY_FSF (0x44<<24) /* space file forward */
	117	#define CY_BSF (CY_FSF\|CYCW_REV) /* space file backwards */
d62077b1 SL	118	#define CY_ERASE (0x4c<<24) /* erase record */
	119
	120	/* data transfer commands */
	121	#define CY_BRCOM (0x10<<24) /* read buffered */
	122	#define CY_BWCOM (0x14<<24) /* write buffered */
	123	#define CY_RCOM (0x2c<<24) /* read tape unbuffered */
	124	#define CY_WCOM (0x30<<24) /* write tape unbuffered */
	125
	126	/* status field bit definitions */
	127	#define CYS_WP (0x0002<<8) /* write protected, no write ring */
	128	#define CYS_BSY (0x0004<<8) /* formatter busy */
	129	#define CYS_RDY (0x0008<<8) /* drive ready */
	130	#define CYS_EOT (0x0010<<8) /* end of tape detected */
	131	#define CYS_BOT (0x0020<<8) /* tape is at load point */
	132	#define CYS_OL (0x0040<<8) /* drive on_line */
	133	#define CYS_FM (0x0080<<8) /* filemark detected */
	134	#define CYS_ERR (0x1f00>>8) /* error value mask */
	135	#define CYS_CR (0x2000>>8) /* controller executed retries */
	136	#define CYS_CC (0x4000>>8) /* command completed successfully */
	137	#define CYS_CE (0x8000>>8) /* command execution has begun */
	138
	139	#define CYS_BITS "\20\6CR\7CC\10CE\12WP\13BSY\14RDY\15EOT/BOT\16BOT\17OL\20FM"
	140
	141	/* error codes for CYS_ERR */
	142	#define CYER_TIMOUT 0x01 /* timed out data busy false */
	143	#define CYER_TIMOUT1 0x02 /* data busy false,formatter,ready */
	144	#define CYER_TIMOUT2 0x03 /* time out ready busy false */
	145	#define CYER_TIMOUT3 0x04 /* time out ready busy true */
	146	#define CYER_TIMOUT4 0x05 /* time out data busy true */
	147	#define CYER_NXM 0x06 /* time out memory */
	148	#define CYER_BLANK 0x07 /* blank tape */
	149	#define CYER_DIAG 0x08 /* micro-diagnostic */
	150	#define CYER_EOT 0x09 /* EOT forward, BOT rev. */
	151	#define CYER_BOT 0x09 /* EOT forward, BOT rev. */
	152	#define CYER_HERR 0x0a /* retry unsuccessful */
	153	#define CYER_FIFO 0x0b /* FIFO over/under flow */
	154	#define CYER_PARITY 0x0d /* drive to tapemaster parity error */
	155	#define CYER_CKSUM 0x0e /* prom checksum */
	156	#define CYER_STROBE 0x0f /* time out tape strobe */
	157	#define CYER_NOTRDY 0x10 /* tape not ready */
	158	#define CYER_PROT 0x11 /* write, no enable ring */
	159	#define CYER_JUMPER 0x13 /* missing diagnostic jumper */
	160	#define CYER_LINK 0x14 /* bad link, link inappropriate */
	161	#define CYER_FM 0x15 /* unexpected filemark */
	162	#define CYER_PARAM 0x16 /* bad parameter, byte count ? */
	163	#define CYER_HDWERR 0x18 /* unidentified hardware error */
	164	#define CYER_NOSTRM 0x19 /* streaming terminated */
	165
	166	#ifdef CYERROR
	167	char *cyerror[] = {
82bc5dc5	168	"no error",
d62077b1 SL	169	"timeout",
	170	"timeout1",
	171	"timeout2",
	172	"timeout3",
	173	"timeout4",
82bc5dc5	174	"non-existent memory",
d62077b1 SL	175	"blank tape",
	176	"micro-diagnostic",
	177	"eot/bot detected",
	178	"retry unsuccessful",
	179	"fifo over/under-flow",
82bc5dc5	180	"#0xc",
d62077b1 SL	181	"drive to controller parity error",
	182	"prom checksum",
	183	"time out tape strobe (record length error)",
	184	"tape not ready",
	185	"write protected",
82bc5dc5	186	"#0x12",
d62077b1 SL	187	"missing diagnostic jumper",
	188	"invalid link pointer",
	189	"unexpected file mark",
82bc5dc5 MK	190	"invalid byte count/parameter",
82bc5dc5 MK	191	"#0x17",
d62077b1 SL	192	"unidentified hardware error",
	193	"streaming terminated"
	194	};
	195	#define NCYERROR (sizeof (cyerror) / sizeof (cyerror[0]))
	196	#endif
	197
	198	/*
	199	* Masks defining hard and soft errors (must check against 1<<CYER_code).
	200	*/
0995dc78	201	#define CYMASK(e) (1 << (e))
bf9edb82 KB	202	#define CYER_HARD (CYMASK(CYER_TIMOUT)\|CYMASK(CYER_TIMOUT1)\|\
	203	CYMASK(CYER_TIMOUT2)\|CYMASK(CYER_TIMOUT3)\|CYMASK(CYER_TIMOUT4)\|\
	204	CYMASK(CYER_NXM)\|CYMASK(CYER_DIAG)\|CYMASK(CYER_JUMPER)\|\
	205	CYMASK(CYER_STROBE)\|CYMASK(CYER_PROT)\|CYMASK(CYER_CKSUM)\|\
	206	CYMASK(CYER_HERR)\|CYMASK(CYER_BLANK))
	207	#define CYER_RSOFT (CYMASK(CYER_FIFO)\|CYMASK(CYER_NOTRDY)\|\
	208	CYMASK(CYER_PARITY))
	209	#define CYER_WSOFT (CYMASK(CYER_HERR)\|CYMASK(CYER_FIFO)\|\
	210	CYMASK(CYER_NOTRDY)\|CYMASK(CYER_PARITY))