usr/src/sys/h/tablet.h

/*
 * Copyright (c) 1985, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)tablet.h    7.1 (Berkeley) 6/4/86
 */

#ifndef _TABLET_
/*
 * Tablet line discipline.
 */
#ifdef KERNEL
#include "../h/ioctl.h"
#else
#include <sys/ioctl.h>
#endif

/*
 * Reads on the tablet return one of the following
 * structures, depending on the underlying tablet type.
 * The first two are defined such that a read of
 * sizeof (gtcopos) on a non-gtco tablet will return
 * meaningful info.  The in-proximity bit is simulated
 * where the tablet does not directly provide the information.
 */
struct  tbpos {
        int     xpos, ypos;     /* raw x-y coordinates */
        short   status;         /* buttons/pen down */
#define TBINPROX        0100000         /* pen in proximity of tablet */
        short   scount;         /* sample count */
};

struct  gtcopos {
        int     xpos, ypos;     /* raw x-y coordinates */
        short   status;         /* as above */
        short   scount;         /* sample count */
        short   xtilt, ytilt;   /* raw tilt */
        short   pressure;
        short   pad;            /* pad to longword boundary */
};

struct  polpos {
        short   p_x, p_y, p_z;  /* raw 3-space coordinates */
        short   p_azi, p_pit, p_rol;    /* azimuth, pitch, and roll */
        short   p_stat;         /* status, as above */
        char    p_key;          /* calculator input keyboard */
};

#define BIOSMODE        _IOW(b, 1, int)         /* set mode bit(s) */
#define BIOGMODE        _IOR(b, 2, int)         /* get mode bit(s) */
#define TBMODE          0xfff0          /* mode bits: */
#define         TBPOINT         0x0010          /* single point */
#define         TBRUN           0x0000          /* runs contin. */
#define         TBSTOP          0x0020          /* shut-up */
#define         TBGO            0x0000          /* ~TBSTOP */
#define TBTYPE          0x000f          /* tablet type: */
#define         TBUNUSED        0x0000
#define         TBHITACHI       0x0001          /* hitachi tablet */
#define         TBTIGER         0x0002          /* hitachi tiger */
#define         TBGTCO          0x0003          /* gtco */
#define         TBPOL           0x0004          /* polhemus 3space */
#define         TBHDG           0x0005          /* hdg-1111b, low res */
#define         TBHDGHIRES      0x0006          /* hdg-1111b, high res */
#define BIOSTYPE        _IOW(b, 3, int)         /* set tablet type */
#define BIOGTYPE        _IOR(b, 4, int)         /* get tablet type*/
#endif