cg6reg.h missing from SunOS 4.1.1

[Ken Hauck]

TO: 	 Sun Users running MIT X11R4
FROM: 	 Joanne Blind-Griffith, SunOS Marketing
	 Ken Hauck, Graphics Software Marketing
	 Sun Microsystems, Inc.
SUBJECT: SunOS 4.1.1 missing cg6reg.h


PROBLEM CAUSED BY OMISSION OF CG6REG.H:

The file /usr/include/sundev/cg6reg.h was inadvertently omitted from SunOS
4.1.1.  This file is currently used to build the MIT X11R4 Server.  We
apologize for the inconvenience that this may have caused our customers.

SOLUTIONS:

Three alternate options exist to successfully build the MIT X11R4 Server.
Please use the option you find most convenient.  

1) The following #define can be put either into
mit/server/ddx/sun/sunCG6C.c from the MIT X11R4 distribution, or into a
file called /usr/include/sundev/cg6reg.h

#define CG6_VADDR_COLOR		0x70016000

2)  The cg6reg.h file found on the SunOS 4.1 media is sufficient for
building the MIT server.  Customers can extract this file from their SunOS
4.1 media.

3) In the event that option #1 is not feasible or the SunOS 4.1 media is
not available, use the cg6reg.h file included below.  This file is the
cg6reg.h file that was omitted from the SunOS 4.1.1 release.  The file
"cg6reg.h" will be included in the next release of the operating system.

------------------------------------

/* @(#)cg6reg.h	1.10 90/07/19 SMI */

/*
 * Copyright 1988-1989, Sun Microsystems, Inc.
 */

#ifndef	cg6reg_DEFINED
#define	cg6reg_DEFINED

/*
 * CG6 frame buffer hardware definitions.
 */


/* Physical frame buffer and color map addresses */
/*
 * The base address is defined in the configuration file, e.g. GENERIC.
 * These constants are the offset from that address.
 */

#ifdef sparc
#define CG6_P4BASE		0xFB000000
#else
#define CG6_P4BASE		0xFF000000
#endif

#ifdef sun4c
#define CG6_ADDR_ROM            0
#else
#define CG6_ADDR_ROM            0x380000
#endif

#define CG6_ADDR_CMAP		0x200000
#define CG6_ADDR_FBC		0x700000
#define	CG6_ADDR_TEC		0x701000
#define CG6_ADDR_P4REG		0x300000
#define CG6_ADDR_OVERLAY	0x400000	/* FAKE */
#define CG6_ADDR_FHC		0x300000
#define CG6_ADDR_THC		0x301000
#define CG6_ADDR_ENABLE		0x600000
#define CG6_ADDR_COLOR		0x800000

#define CG6_ADDR_FBCTEC		CG6_ADDR_FBC
#define CG6_ADDR_FHCTHC		CG6_ADDR_FHC	

#define CG6_CMAP_SZ		8192
#define CG6_FBCTEC_SZ		8192
#define CG6_FHCTHC_SZ		8192
#define CG6_ROM_SZ		(64*1024)
#define CG6_FB_SZ		(1024*1024)

/*
 * Offsets of TEC/FHC into page
 */
#define CG6_TEC_POFF		0x1000
#define CG6_THC_POFF		0x1000

/*
 * Virtual (mmap offsets) addresses
 */ 
#define CG6_VBASE		0x70000000
#define CG6_VADDR(x)		(CG6_VBASE + (x) * 8192)

/*
 * CG6 Virtual object addresses
 */
#define CG6_VADDR_FBC		CG6_VADDR(0)
#define	CG6_VADDR_TEC		(CG6_VADDR_FBC + CG6_TEC_POFF)
#define CG6_VADDR_CMAP		CG6_VADDR(1)
#define CG6_VADDR_FHC		CG6_VADDR(2)
#define CG6_VADDR_THC		(CG6_VADDR_FHC + CG6_THC_POFF)
#define CG6_VADDR_ROM		CG6_VADDR(3)
#define CG6_VADDR_COLOR		(CG6_VADDR_ROM + CG6_ROM_SZ)

#define CG6_VADDR_FBCTEC	CG6_VADDR_FBC
#define CG6_VADDR_FHCTHC	CG6_VADDR_FHC
/*
 * to map in all of lego, use mmapsize below, and offset CG6_VBASE
 */
#define MMAPSIZE(dfbsize)	(CG6_VADDR_COLOR-CG6_VBASE+dfbsize)

/*
 * convert from address returned by pr_makefromfd (eg. mmap) 
 * to CG6 register set.
 */
#define CG6VA_TO_FBC(base) \
	((struct fbc*)  (((char*)base)+(CG6_VADDR_FBC-CG6_VBASE)))
#define CG6VA_TO_TEC(base)  \
	((struct tec*)  (((char*)base)+(CG6_VADDR_TEC-CG6_VBASE)))
#define CG6VA_TO_FHC(base)  \
	((u_int*) 	(((char*)base)+(CG6_VADDR_FHC-CG6_VBASE)))
#define CG6VA_TO_THC(base)  \
	((struct thc*)  (((char*)base)+(CG6_VADDR_THC-CG6_VBASE)))
#define CG6VA_TO_DFB(base)  \
	((short*) 	(((char*)base)+(CG6_VADDR_COLOR-CG6_VBASE)))
#define CG6VA_TO_ROM(base)  \
	((u_int*)	(((char*)base)+(CG6_VADDR_ROM-CG6_VBASE)))
#define CG6VA_TO_CMAP(base) \
	((struct cg6_cmap*) (((char*)base)+(CG6_VADDR_CMAP-CG6_VBASE)))


/* (Brooktree DAC) definitions */

/* number of colormap entries */
#define CG6_CMAP_ENTRIES	256

struct cg6_cmap {
	u_int	addr;		/* address register */
	u_int	cmap;		/* color map data register */
	u_int	ctrl;		/* control register */
	u_int	omap;		/* overlay map data register */
};

#endif	!cg6reg_DEFINED