FreeBSD/Linux Kernel Cross Reference
sys/i386/include/qcam.h

     /*
      * Connectix QuickCam parallel-port camera video capture driver.
      * Copyright (c) 1996, Paul Traina.
      *
      * This driver is based in part on work
      * Copyright (c) 1996, Thomas Davis.
      *
      * QuickCam(TM) is a registered trademark of Connectix Inc.
      * Use this driver at your own risk, it is not warranted by
     * Connectix or the authors.
     *
     * 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
     *    in this position and unchanged.
     * 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. The name of the author may not be used to endorse or promote products
     *    derived from this software withough specific prior written permission
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     *
     * NOTE: this file contains the sole public interface between the driver
     * and user applications.  Every effort should be made to retain comaptibility
     * with the decided upon standard interface shared between Linux and
     * FreeBSD.  Currently, FreeBSD uses a different (richer) interface than
     * the Linux.
     *
     * WARNING WARNING: The contents of this structure is in flux,
     *                  recompile often, the driver will change the version
     *                  number when the interface changes for now...
     */
    
    #ifndef _QUICKCAM_H
    #define _QUICKCAM_H 1
    
    #ifndef _IOR
    /* SCO doesn't have _IOR/_IOW for ioctls, so fake it out to keep things clean*/
    #define _IOR(cat, func, data)   (((cat) << 8) | (func))
    #define _IOW(cat, func, data)   (((cat) << 8) | (func))
    #endif
    
    /*
     * ioctls
     */
    #define QC_GET  _IOR('S', 1, struct qcam)       /* get parameter structure */
    #define QC_SET  _IOW('S', 2, struct qcam)       /* set parameter structure */
    
    #define QC_IOCTL_VERSION        3               /* version of the structure */
    
    struct qcam {
            int     qc_version;                     /* version of qcam structure */
            int     qc_xsize;                       /* size in pixels */
            int     qc_ysize;                       /* size in pixels */
            int     qc_xorigin;                     /* x origin */
            int     qc_yorigin;                     /* y origin */
            int     qc_bpp;                         /* bits per pixel (4 or 6) */
            int     qc_zoom;                        /* zoom mode */
            int     qc_exposure;                    /* length of exposure */
            u_char  qc_brightness;                  /* 0..255 */
            u_char  qc_whitebalance;                /* 0..255 */
            u_char  qc_contrast;                    /* 0..255 */
    };
    
    #define QC_MAX_XSIZE            320             /* pixels */
    #define QC_MAX_YSIZE            240             /* pixels */
    
    /*
     * zoom flags
     */
    #define QC_ZOOM_100             0x00            /* no zoom */
    #define QC_ZOOM_150             0x01            /* 1.5x */
    #define QC_ZOOM_200             0x02            /* 2.0x */
    
    #endif

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