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      1 /*	$NetBSD: grfvar.h,v 1.32 2019/07/26 10:48:44 rin 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. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: grfvar.h 1.9 91/01/21$
     37  *
     38  *	@(#)grfvar.h	7.3 (Berkeley) 5/7/91
     39  */
     40 
     41 #define CARD_NAME_LEN	64
     42 
     43 /*
     44  * Color map, required for DAFB to support genfb(4).
     45  */
     46 struct grfbus_cmap {
     47 	uint8_t		*red;
     48 	uint8_t		*green;
     49 	uint8_t		*blue;
     50 };
     51 
     52 /*
     53  * State info, per hardware instance.
     54  */
     55 struct grfbus_softc {
     56 	device_t	sc_dev;
     57 	nubus_slot	sc_slot;
     58 
     59 	bus_addr_t		sc_basepa;	/* base of video space */
     60 	bus_addr_t		sc_fbofs;	/* offset to framebuffer */
     61 
     62 	bus_space_tag_t		sc_tag;
     63 	bus_space_handle_t	sc_handle;
     64 	bus_space_handle_t	sc_regh;
     65 
     66 	struct	grfmode curr_mode;	/* hardware desc(for ioctl)	*/
     67 	u_int32_t	card_id;	/* DrHW value for nubus cards	*/
     68 	bus_size_t	cli_offset;	/* Offset to clear interrupt	*/
     69 					/* for cards where that's suff.	*/
     70 	u_int32_t	cli_value;	/* Value to write at cli_offset */
     71 	nubus_dir	board_dir;	/* Nubus dir for curr board	*/
     72 
     73 	bus_space_handle_t	sc_cmh;
     74 	void			(*sc_set_mapreg)(void *, int, int, int, int);
     75 	struct grfbus_cmap	sc_cmap;
     76 };
     77 
     78 /*
     79  * State info, per grf instance.
     80  */
     81 struct grf_softc {
     82 	char sc_xname[15];		/* name of the device */
     83 	struct macfb_softc *mfb_sc;
     84 };
     85 
     86 /*
     87  * Attach grf and ite semantics to Mac video hardware.
     88  */
     89 struct grfbus_attach_args {
     90 	const char	*ga_name;	/* name of semantics to attach */
     91 	bus_space_tag_t	ga_tag;		/* forwarded ... */
     92 	bus_space_handle_t ga_handle;
     93 	struct grfmode	*ga_grfmode;
     94 	nubus_slot	*ga_slot;
     95 	bus_addr_t	ga_phys;
     96 	bus_addr_t	ga_fboff;
     97 	int		(*ga_mode)(struct grf_softc *, int, void *);
     98 	void		(*ga_set_mapreg)(void *, int, int, int, int);
     99 	struct grfbus_softc *ga_parent;
    100 };
    101 
    102 typedef	void *(*grf_phys_t)(struct grf_softc *, vaddr_t);
    103 
    104 /* flags */
    105 #define	GF_ALIVE	0x01
    106 #define GF_OPEN		0x02
    107 #define GF_EXCLUDE	0x04
    108 #define GF_WANTED	0x08
    109 #define GF_BSDOPEN	0x10
    110 #define GF_HPUXOPEN	0x20
    111 
    112 /* requests to mode routine */
    113 #define GM_GRFON	1
    114 #define GM_GRFOFF	2
    115 #define GM_CURRMODE	3
    116 #define GM_LISTMODES	4
    117 #define GM_NEWMODE	5
    118 
    119 /* minor device interpretation */
    120 #define GRFUNIT(d)	(minor(d))
    121 
    122 /*
    123  * Nubus image data structure.  This is the equivalent of a PixMap in
    124  * MacOS programming parlance.  One of these structures exists for each
    125  * video mode that a quickdraw compatible card can fit in.
    126  */
    127 struct image_data {
    128 	u_int32_t	size;
    129 	u_int32_t	offset;
    130 	u_int16_t	rowbytes;
    131 	u_int16_t	top;
    132 	u_int16_t	left;
    133 	u_int16_t	bottom;
    134 	u_int16_t	right;
    135 	u_int16_t	version;
    136 	u_int16_t	packType;
    137 	u_int32_t	packSize;
    138 	u_int32_t	hRes;
    139 	u_int32_t	vRes;
    140 	u_int16_t	pixelType;
    141 	u_int16_t	pixelSize;
    142 	u_int16_t	cmpCount;
    143 	u_int16_t	cmpSize;
    144 	u_int32_t	planeBytes;
    145 };
    146 
    147 #define VID_PARAMS		1
    148 #define VID_TABLE_OFFSET	2
    149 #define VID_PAGE_CNT		3
    150 #define VID_DEV_TYPE		4
    151 
    152 void	grf_attach(struct macfb_softc *, int);
    153 
    154 void	grf_establish(struct grfbus_softc *, nubus_slot *,
    155 	    int (*)(struct grf_softc *, int, void *));
    156 int	grfbusprint(void *, const char *);
    157