FreeBSD/Linux Kernel Cross Reference
sys/dev/sun/fbvar.h

     /*      $NetBSD: fbvar.h,v 1.7 2003/08/07 16:31:24 agc Exp $ */
     
     /*
      * Copyright (c) 1992, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This software was developed by the Computer Systems Engineering group
      * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      * contributed to Berkeley.
     *
     * 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, Lawrence Berkeley Laboratory.
     *
     * 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. 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.
     *
     *      @(#)fbvar.h     8.1 (Berkeley) 6/11/93
     */
    
    /*
     * Frame buffer variables.  All frame buffer drivers must provide the
     * following in order to participate.
     */
    
    #include <sys/event.h>
    
    #ifdef RASTERCONSOLE
    #include <dev/rcons/rcons.h>
    #include <dev/wscons/wsdisplayvar.h>
    #include <dev/rasops/rasops.h>
    #endif
    
    struct fbdriver {
            /* device unblank function (force kernel output to display) */
            void    (*fbd_unblank)(struct device *);
            int     (*fbd_open)(dev_t, int, int, struct proc *);
            int     (*fbd_close)(dev_t, int, int, struct proc *);
            int     (*fbd_ioctl)(dev_t, u_long, caddr_t, int, struct proc *);
            int     (*fbd_poll)(dev_t, int, struct proc *);
            paddr_t (*fbd_mmap)(dev_t, off_t, int);
            int     (*fbd_kqfilter)(dev_t, struct knote *);
    #ifdef notyet
            /* 
             * XXX redundant idea? these can hook into rasops on a per-device 
             * basis like: fb_rinfo.ri_ops.copycols = ....;
             */
            void    (*fbd_wrrop)();         /* `write region' rasterop */
            void    (*fbd_cprop)();         /* `copy region' rasterop */
            void    (*fbd_clrop)();         /* `clear region' rasterop */
    #endif
    };
    
    struct fbdevice {
            int     fb_major;               /* XXX */
            struct  fbtype fb_type;         /* what it says */
            caddr_t fb_pixels;              /* display RAM */
            int     fb_linebytes;           /* bytes per display line */
    
            struct  fbdriver *fb_driver;    /* pointer to driver */
            struct  device *fb_device;      /* parameter for fbd_unblank */
    
            int     fb_flags;               /* misc. flags */
    #define FB_FORCE        0x00000001      /* force device into /dev/fb */
    #define FB_PFOUR        0x00010000      /* indicates fb is a pfour fb */
    #define FB_USERMASK     (FB_FORCE)      /* flags that the user can set */
    
            volatile u_int32_t *fb_pfour;   /* pointer to pfour register */
    
    #ifdef RASTERCONSOLE
            /* Raster console emulator state */
            struct  rconsole fb_rcons;
            struct  rasops_info fb_rinfo;
    #endif
    };
    
    void    fb_attach(struct fbdevice *, int);
   void    fb_setsize_obp(struct fbdevice *, int, int, int, int);
   void    fb_setsize_eeprom(struct fbdevice *, int, int, int);
   void    fb_setsize_pfour(struct fbdevice *);
   int     fb_is_console(int);
   #ifdef RASTERCONSOLE
   void    fbrcons_init(struct fbdevice *);
   int     fbrcons_rows(void);
   int     fbrcons_cols(void);
   #endif
   
   int     fb_pfour_id(volatile void *);
   int     fb_pfour_get_video(struct fbdevice *);
   void    fb_pfour_set_video(struct fbdevice *, int);

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