FreeBSD/Linux Kernel Cross Reference
sys/sys/tablet.h

     /*-
      * Copyright (c) 1985, 1986, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)tablet.h    8.4 (Berkeley) 7/10/94
     * $FreeBSD: src/sys/sys/tablet.h,v 1.5.2.1 1999/09/05 08:23:03 peter Exp $
     */
    
    #ifndef _SYS_TABLET_H_
    #define _SYS_TABLET_H_
    
    /*
     * Tablet line discipline.
     */
    
    #ifndef KERNEL
    #include <sys/types.h>
    #endif
    #include <sys/ioccom.h>
    
    /*
     * 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 {
            int32_t xpos, ypos;     /* raw x-y coordinates */
            int16_t status;         /* buttons/pen down */
    #define TBINPROX        0100000         /* pen in proximity of tablet */
            int16_t scount;         /* sample count */
    };
    
    struct  gtcopos {
            int32_t xpos, ypos;     /* raw x-y coordinates */
            int16_t status;         /* as above */
            int16_t scount;         /* sample count */
            int16_t xtilt, ytilt;   /* raw tilt */
            int16_t pressure;
            int16_t pad;            /* pad to longword boundary */
    };
    
    struct  polpos {
            int16_t p_x, p_y, p_z;  /* raw 3-space coordinates */
            int16_t p_azi, p_pit, p_rol;    /* azimuth, pitch, and roll */
            int16_t 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        0x0
    #define         TBHITACHI       0x1             /* hitachi tablet */
    #define         TBTIGER         0x2             /* hitachi tiger */
    #define         TBGTCO          0x3             /* gtco */
    #define         TBPOL           0x4             /* polhemus 3space */
    #define         TBHDG           0x5             /* hdg-1111b, low res */
    #define         TBHDGHIRES      0x6             /* hdg-1111b, high res */
    #define         TBDIGI          0x7             /* gtco digi-pad, low res */
    #define         TBDIGIHIRES     0x8             /* gtco digi-pad, high res */
    #define BIOSTYPE        _IOW('b', 3, int)       /* set tablet type */
    #define BIOGTYPE        _IOR('b', 4, int)       /* get tablet type*/
    
    #endif /* !_SYS_TABLET_H_ */

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