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

/*
 * Copyright (c) 1982, 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)hpibvar.h   8.1 (Berkeley) %G%
 */

#define HPIB_IPL(x)     ((((x) >> 4) & 0x3) + 3)

#define HPIBA           32
#define HPIBB           1
#define HPIBC           8
#define HPIBA_BA        21
#define HPIBC_BA        30
#define HPIBA_IPL       3

#define CSA_BA          0x1F

#define IDS_WDMA        0x04
#define IDS_WRITE       0x08
#define IDS_IR          0x40
#define IDS_IE          0x80
#define IDS_DMA(x)      (1 << (x))

#define C_DCL           0x14
#define C_LAG           0x20
#define C_UNL           0x3f
#define C_TAG           0x40
#define C_UNA           0x5e
#define C_UNT           0x5f
#define C_SCG           0x60

struct  hpib_softc {
        struct  hp_ctlr *sc_hc;
        int     sc_flags;
        struct  devqueue sc_dq;
        struct  devqueue sc_sq;
        int     sc_ba;
        int     sc_type;
        char    *sc_addr;
        int     sc_count;
        int     sc_curcnt;
};

/* sc_flags */
#define HPIBF_IO        0x1
#define HPIBF_DONE      0x2
#define HPIBF_PPOLL     0x4
#define HPIBF_READ      0x8
#define HPIBF_DMA16     0x8000

#ifdef KERNEL
extern  struct hpib_softc hpib_softc[];
extern  caddr_t internalhpib;
extern  int hpibtimeout;
extern  int hpibdmathresh;
void    fhpibppwatch __P((void *arg));
void    nhpibppwatch __P((void *arg));
#endif