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grfvar.h revision 1.2 
      1 /*
      2  * Copyright (c) 1988 University of Utah.
      3  * Copyright (c) 1990 The Regents of the University of California.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * the Systems Programming Group of the University of Utah Computer
      8  * Science Department.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	from: Utah Hdr: grfvar.h 1.9 91/01/21
     39  *	from: @(#)grfvar.h	7.3 (Berkeley) 5/7/91
     40  *	$Id: grfvar.h,v 1.2 1993/08/01 19:23:08 mycroft Exp $
     41  */
     42 
     43 /* internal structure of lock page */
     44 #define GRFMAXLCK	256
     45 struct	grf_lockpage {
     46 	u_char	gl_locks[GRFMAXLCK];
     47 };
     48 #define gl_lockslot gl_locks[0]
     49 
     50 /* per display info */
     51 struct	grf_softc {
     52 	int	g_flags;		/* software flags */
     53 	int	g_type;			/* type of display */
     54 	caddr_t	g_regkva;		/* KVA of registers */
     55 	caddr_t	g_fbkva;		/* KVA of framebuffer */
     56 	struct	grfinfo g_display;	/* hardware description (for ioctl) */
     57 	struct	grf_lockpage *g_lock;	/* lock page associated with device */
     58 	struct	proc *g_lockp;		/* process holding lock */
     59 	short	*g_pid;			/* array of pids with device open */
     60 	int	g_lockpslot;		/* g_pid entry of g_lockp */
     61 	caddr_t	g_data;			/* device dependent data */
     62 };
     63 
     64 /* flags */
     65 #define	GF_ALIVE	0x01
     66 #define GF_OPEN		0x02
     67 #define GF_EXCLUDE	0x04
     68 #define GF_WANTED	0x08
     69 
     70 /* display types - indices into grfdev */
     71 #define GT_CUSTOMCHIPS	0
     72 #define GT_TIGA_A2410	1
     73 
     74 struct	grfdev {
     75 	int	gd_manuf;
     76 	int	gd_prod;	/* autoconfig parameters */
     77 	int	(*gd_init)();	/* boot time initialization */
     78 	int	(*gd_mode)();	/* misc functions */
     79 	char	*gd_desc;	/* text description */
     80 };
     81 
     82 /* software ids defined in grfioctl.h */
     83 
     84 /* requests to mode routine */
     85 #define GM_GRFON	1
     86 #define GM_GRFOFF	2
     87 #define GM_GRFOVON	3
     88 #define GM_GRFOVOFF	4
     89 #define GM_GRFCONFIG	5
     90 
     91 /* minor device interpretation */
     92 #define GRFOVDEV	0x10	/* overlay planes */
     93 #define GRFIMDEV	0x20	/* images planes */
     94 #define GRFUNIT(d)	((d) & 0x7)
     95 
     96 #ifdef KERNEL
     97 extern	struct grf_softc grf_softc[];
     98 #endif
     99