usr/src/sys/hp300/dev/scsivar.h

/*
 * Copyright (c) 1990, 1993
 *      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   8.1 (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 */