[unix-history] / usr / src / sys / hp300 / dev / scsivar.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%
 *
 *	@(#)scsivar.h	7.2 (Berkeley) %G%
 */

struct	scsi_softc {
	struct	hp_ctlr *sc_hc;
	struct	devqueue sc_dq;
	struct	devqueue sc_sq;
	u_char	sc_flags;
	u_char	sc_sync;
	u_char	sc_scsi_addr;
	u_char	sc_stat[2];
	u_char	sc_msg[7];
};

/* sc_flags */
#define	SCSI_IO		0x80	/* DMA I/O in progress */
#define	SCSI_DMA32	0x40	/* 32-bit DMA should be used */
#define	SCSI_HAVEDMA	0x04	/* controller has DMA channel */
#ifdef DEBUG
#define	SCSI_PAD	0x02	/* 'padded' transfer in progress */
#endif
#define	SCSI_ALIVE	0x01	/* controller initialized */
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	*
9acfa6cd	10	* @(#)scsivar.h 7.2 (Berkeley) %G%
60f56dfc KM	11	*/
	12
	13	struct scsi_softc {
	14	struct hp_ctlr *sc_hc;
	15	struct devqueue sc_dq;
	16	struct devqueue sc_sq;
	17	u_char sc_flags;
	18	u_char sc_sync;
	19	u_char sc_scsi_addr;
	20	u_char sc_stat[2];
	21	u_char sc_msg[7];
	22	};
	23
	24	/* sc_flags */
	25	#define SCSI_IO 0x80 /* DMA I/O in progress */
	26	#define SCSI_DMA32 0x40 /* 32-bit DMA should be used */
9acfa6cd	27	#define SCSI_HAVEDMA 0x04 /* controller has DMA channel */
60f56dfc KM	28	#ifdef DEBUG
	29	#define SCSI_PAD 0x02 /* 'padded' transfer in progress */
	30	#endif
9acfa6cd	31	#define SCSI_ALIVE 0x01 /* controller initialized */