/*      $NetBSD: grfvar.h,v 1.12 2011/02/08 20:20:25 rmind Exp $        */

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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.
 *
 * from: Utah $Hdr: grfvar.h 1.11 93/08/13$
 *
 *      @(#)grfvar.h    8.2 (Berkeley) 9/9/93
 */

/* internal structure of lock page */
#define GRFMAXLCK       256
struct  grf_lockpage {
        u_char  gl_locks[GRFMAXLCK];
};
#define gl_lockslot gl_locks[0]

struct grf_softc;

/*
 * Static configuration info for display types
 */
struct  grfsw {
        int     gd_hwid;        /* id returned by hardware */
        int     gd_swid;        /* id to be returned by software */
        const char *gd_desc;    /* description printed at config time */
        int     (*gd_init)(struct grf_softc *, void *);
        int     (*gd_mode)(struct grf_softc *, u_long, void *);
};

/* per display info */
struct  grf_softc {
        device_t g_device;              /* for config */
        int     g_flags;                /* software flags */
        int     g_cfaddr;               /* "addr" locator */
        struct  grfsw *g_sw;            /* static configuration info */
        void *  g_regkva;               /* KVA of registers */
        void *  g_fbkva;                /* KVA of framebuffer */
        struct  grfinfo g_display;      /* hardware description (for ioctl) */
        void *  g_data;                 /* device dependent data */
};

/* flags */
#define GF_ALIVE        0x01
#define GF_OPEN         0x02
#define GF_EXCLUDE      0x04
#define GF_WANTED       0x08

/* requests to mode routine */
#define GM_GRFON        1
#define GM_GRFOFF       2
#define GM_GRFOVON      3
#define GM_GRFOVOFF     4
#define GM_DESCRIBE     5
#define GM_MAP          6
#define GM_UNMAP        7

#define GM_GRFCONFIG    8
#define GM_GRFGETVMODE  9
#define GM_GRFSETVMODE  10
#define GM_GRFGETNUMVM  11
#define GM_GRFGETBANK   12
#define GM_GRFSETBANK   13
#define GM_GRFGETCURBANK 14
#define GM_GRFIOCTL     15

/* minor device interpretation */
#define GRFUNIT(d)      minor(d)

#ifdef _KERNEL
extern  struct grfsw grfsw[];
extern  int ngrfsw;
#endif