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grfvar.h revision 1.15
      1 /*	$NetBSD: grfvar.h,v 1.15 1997/05/01 03:34:08 briggs Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990 The Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah $Hdr: grfvar.h 1.9 91/01/21$
     41  *
     42  *	@(#)grfvar.h	7.3 (Berkeley) 5/7/91
     43  */
     44 
     45 #define CARD_NAME_LEN	64
     46 
     47 /*
     48  * State info, per hardware instance.
     49  */
     50 struct grfbus_softc {
     51 	struct	device	sc_dev;
     52 	nubus_slot	sc_slot;
     53 
     54 	bus_space_tag_t		sc_tag;
     55 	bus_space_handle_t	sc_regh;
     56 	bus_space_handle_t	sc_fbh;
     57 
     58 	struct	grfmode curr_mode;	/* hardware desc(for ioctl)	*/
     59 	u_int32_t	card_id;	/* DrHW value for nubus cards	*/
     60 	u_int32_t	cli_offset;	/* Offset of byte to clear intr */
     61 					/* for cards where that's suff.  */
     62 	unsigned char	cli_value;	/* Value to write at cli_offset */
     63 	nubus_dir	board_dir;	/* Nubus dir for curr board	*/
     64 };
     65 
     66 /*
     67  * State info, per grf instance.
     68  */
     69 struct grf_softc {
     70 	struct	device sc_dev;		/* device glue */
     71 
     72 	int	sc_flags;		/* software flags */
     73 	struct	grfmode *sc_grfmode;	/* forwarded ... */
     74 	nubus_slot	*sc_slot;
     75 					/* mode-change on/off/mode function */
     76 	int	(*sc_mode) __P((struct grf_softc *, int, void *));
     77 					/* map virtual addr to physical addr */
     78 	caddr_t	(*sc_phys) __P((struct grf_softc *, vm_offset_t));
     79 };
     80 
     81 /*
     82  * Attach grf and ite semantics to Mac video hardware.
     83  */
     84 struct grfbus_attach_args {
     85 	char	*ga_name;		/* name of semantics to attach */
     86 	struct	grfmode *ga_grfmode;	/* forwarded ... */
     87 	nubus_slot	*ga_slot;
     88 	int	(*ga_mode) __P((struct grf_softc *, int, void *));
     89 	caddr_t	(*ga_phys) __P((struct grf_softc *, vm_offset_t));
     90 };
     91 
     92 typedef	caddr_t (*grf_phys_t) __P((struct grf_softc *gp, vm_offset_t addr));
     93 
     94 /* flags */
     95 #define	GF_ALIVE	0x01
     96 #define GF_OPEN		0x02
     97 #define GF_EXCLUDE	0x04
     98 #define GF_WANTED	0x08
     99 #define GF_BSDOPEN	0x10
    100 #define GF_HPUXOPEN	0x20
    101 
    102 /* requests to mode routine */
    103 #define GM_GRFON	1
    104 #define GM_GRFOFF	2
    105 #define GM_CURRMODE	3
    106 #define GM_LISTMODES	4
    107 #define GM_NEWMODE	5
    108 
    109 /* minor device interpretation */
    110 #define GRFUNIT(d)	((d) & 0x7)
    111 
    112 /*
    113  * Nubus image data structure.  This is the equivalent of a PixMap in
    114  * MacOS programming parlance.  One of these structures exists for each
    115  * video mode that a quickdraw compatible card can fit in.
    116  */
    117 struct image_data {
    118 	u_int32_t	size;
    119 	u_int32_t	offset;
    120 	u_int16_t	rowbytes;
    121 	u_int16_t	top;
    122 	u_int16_t	left;
    123 	u_int16_t	bottom;
    124 	u_int16_t	right;
    125 	u_int16_t	version;
    126 	u_int16_t	packType;
    127 	u_int32_t	packSize;
    128 	u_int32_t	hRes;
    129 	u_int32_t	vRes;
    130 	u_int16_t	pixelType;
    131 	u_int16_t	pixelSize;
    132 	u_int16_t	cmpCount;
    133 	u_int16_t	cmpSize;
    134 	u_int32_t	planeBytes;
    135 };
    136 
    137 #define VID_PARAMS		1
    138 #define VID_TABLE_OFFSET	2
    139 #define VID_PAGE_CNT		3
    140 #define VID_DEV_TYPE		4
    141 
    142 int	grfopen __P((dev_t dev, int flag, int mode, struct proc *p));
    143 int	grfclose __P((dev_t dev, int flag, int mode, struct proc *p));
    144 int	grfioctl __P((dev_t, int, caddr_t, int, struct proc *p));
    145 int	grfpoll __P((dev_t dev, int events, struct proc *p));
    146 int	grfmmap __P((dev_t dev, int off, int prot));
    147 int	grfon __P((dev_t dev));
    148 int	grfoff __P((dev_t dev));
    149 int	grfaddr __P((struct grf_softc *gp, register int off));
    150 int	grfmap __P((dev_t dev, caddr_t *addrp, struct proc *p));
    151 int	grfunmap __P((dev_t dev, caddr_t addr, struct proc *p));
    152 
    153 void	grf_establish __P((struct grfbus_softc *, nubus_slot *,
    154 	    int (*)(struct grf_softc *, int, void *),
    155 	    caddr_t (*)(struct grf_softc *, vm_offset_t)));
    156 int	grfbusprint __P((void *, const char *));
    157