/*	$NetBSD: fbio.h,v 1.2 1996/05/01 19:44:21 cgd Exp $	*/

/*
 * Copyright (c) 1992 Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software developed by the Computer Systems
 * Engineering group at Lawrence Berkeley Laboratory under DARPA
 * contract BG 91-66 and contributed to Berkeley.
 *
 * 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. 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, Berkeley and its contributors.
 * 4. 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.
 *
 * 	@(#)fbio.h	7.2 (Berkeley) 4/1/92
 */

/*
 * Frame buffer ioctls (from Sprite, trimmed to essentials for X11).
 */

/*
 * Frame buffer type codes.
 */
#define	FBTYPE_PM_MONO		0	/* never on the alpha */
#define	FBTYPE_PM_COLOR		1	/* never on the alpha */
#define	FBTYPE_CFB		2	/* CFB (TurboChannel) */
#define	FBTYPE_XCFB		3	/* ??? (TurboChannel) */
#define	FBTYPE_MFB		4	/* MFB (TurboChannel) */
#define	FBTYPE_SFB		5	/* SFB (TurboChannel) */
#define	FBTYPE_VGA		6	/* ISA or EISA VGA */
#define	FBTYPE_PCIVGA		7	/* PCI VGA */
#define	FBTYPE_TGA		8	/* TGA (PCI) */
#define	FBTYPE_SFBP		9	/* SFB+ (TurboChannel) */

#define	FBTYPE_LASTPLUSONE	10

/*
 * Frame buffer descriptor as returned by FBIOGTYPE.
 */
struct fbtype {
	int	fb_type;	/* as defined above */
	int	fb_height;	/* in pixels */
	int	fb_width;	/* in pixels */
	int	fb_depth;	/* bits per pixel */
	int	fb_cmsize;	/* size of color map (entries) */
	int	fb_size;	/* total size in bytes */
};
#define	FBIOGTYPE	_IOR('F', 0, struct fbtype)

#ifdef notdef
/*
 * General purpose structure for passing info in and out of frame buffers
 * (used for gp1) -- unsupported.
 */
struct fbinfo {
	int	fb_physaddr;	/* physical frame buffer address */
	int	fb_hwwidth;	/* fb board width */
	int	fb_hwheight;	/* fb board height */
	int	fb_addrdelta;	/* phys addr diff between boards */
	u_char	*fb_ropaddr;	/* fb virtual addr */
	int	fb_unit;	/* minor devnum of fb */
};
#define	FBIOGINFO	_IOR('F', 2, struct fbinfo)
#endif

/*
 * Color map I/O.
 */
struct fbcmap {
	int	index;		/* first element (0 origin) */
	int	count;		/* number of elements */
	u_char	*red;		/* red color map elements */
	u_char	*green;		/* green color map elements */
	u_char	*blue;		/* blue color map elements */
};
#define	FBIOPUTCMAP	_IOW('F', 3, struct fbcmap)
#define	FBIOGETCMAP	_IOW('F', 4, struct fbcmap)

/*
 * Set/get attributes.
 */
#define	FB_ATTR_NDEVSPECIFIC	8	/* no. of device specific values */
#define	FB_ATTR_NEMUTYPES	4	/* no. of emulation types */

struct fbsattr {
	int	flags;			/* flags; see below */
	int	emu_type;		/* emulation type (-1 if unused) */
	int	dev_specific[FB_ATTR_NDEVSPECIFIC];	/* catchall */
};
#define	FB_ATTR_AUTOINIT	1	/* emulation auto init flag */
#define	FB_ATTR_DEVSPECIFIC	2	/* dev. specific stuff valid flag */

struct fbgattr {
	int	real_type;		/* real device type */
	int	owner;			/* PID of owner, 0 if myself */
	struct	fbtype fbtype;		/* fbtype info for real device */
	struct	fbsattr sattr;		/* see above */
	int	emu_types[FB_ATTR_NEMUTYPES];	/* possible emulations */
						/* (-1 if unused) */
};
/*	FBIOSATTR	_IOW('F', 5, struct fbsattr) -- unsupported */
#define	FBIOGATTR	_IOR('F', 6, struct fbgattr)

/*
 * Video control.
 */
#define	FBVIDEO_OFF		0
#define	FBVIDEO_ON		1

#define	FBIOSVIDEO	_IOW('F', 7, int)
#define	FBIOGVIDEO	_IOR('F', 8, int)

/*
 * hardware cursor control
 */
struct fbcurpos {
	short x;
	short y;
};
 
#define FB_CUR_SETCUR   0x01
#define FB_CUR_SETPOS   0x02
#define FB_CUR_SETHOT   0x04
#define FB_CUR_SETCMAP  0x08
#define FB_CUR_SETSHAPE 0x10
#define FB_CUR_SETALL   0x1F

struct fbcursor {
	short set;		/* what to set */
	short enable;		/* enable/disable cursor */
	struct fbcurpos pos;	/* cursor's position */
	struct fbcurpos hot;	/* cursor's hot spot */
	struct fbcmap cmap;	/* color map info */
	struct fbcurpos size;	/* cursor's bit map size */
	char *image;		/* cursor's image bits */
	char *mask;		/* cursor's mask bits */
};
 
/* set/get cursor attributes/shape */
#define FBIOSCURSOR	_IOW('F', 24, struct fbcursor)
#define FBIOGCURSOR	_IOWR('F', 25, struct fbcursor)
 
/* set/get cursor position */
#define FBIOSCURPOS	_IOW('F', 26, struct fbcurpos)
#define FBIOGCURPOS	_IOW('F', 27, struct fbcurpos)
 
/* get max cursor size */
#define FBIOGCURMAX	_IOR('F', 28, struct fbcurpos)