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cfbreg.h revision 1.2.206.1 
      1  1.2.206.1  jdolecek /* $NetBSD: cfbreg.h,v 1.2.206.1 2017/12/03 11:35:46 jdolecek Exp $ */
      2        1.1       cgd 
      3        1.1       cgd /*
      4        1.1       cgd  * Copyright (c) 1996 Carnegie-Mellon University.
      5        1.1       cgd  * All rights reserved.
      6        1.1       cgd  *
      7        1.1       cgd  * Author: Chris G. Demetriou
      8        1.1       cgd  *
      9        1.1       cgd  * Permission to use, copy, modify and distribute this software and
     10        1.1       cgd  * its documentation is hereby granted, provided that both the copyright
     11        1.1       cgd  * notice and this permission notice appear in all copies of the
     12        1.1       cgd  * software, derivative works or modified versions, and any portions
     13        1.1       cgd  * thereof, and that both notices appear in supporting documentation.
     14        1.1       cgd  *
     15        1.1       cgd  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16        1.1       cgd  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17        1.1       cgd  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18        1.1       cgd  *
     19        1.1       cgd  * Carnegie Mellon requests users of this software to return to
     20        1.1       cgd  *
     21        1.1       cgd  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22        1.1       cgd  *  School of Computer Science
     23        1.1       cgd  *  Carnegie Mellon University
     24        1.1       cgd  *  Pittsburgh PA 15213-3890
     25        1.1       cgd  *
     26        1.1       cgd  * any improvements or extensions that they make and grant Carnegie the
     27        1.1       cgd  * rights to redistribute these changes.
     28        1.1       cgd  */
     29        1.1       cgd 
     30        1.1       cgd /*
     31        1.1       cgd  * Color Frame Buffer definitions, from:
     32        1.1       cgd  * ``PMAG-BA TURBOchannel Color Frame Buffer Functional Specification
     33        1.1       cgd  * (Revision 1.2)'', availalable via anonymous FTP from gatekeeper.dec.com.
     34        1.1       cgd  *
     35  1.2.206.1  jdolecek  * All definitions are in "dense" TURBOchannel space.
     36        1.1       cgd  */
     37        1.1       cgd 
     38        1.1       cgd /*
     39        1.1       cgd  * Size of the CFB address space.
     40        1.1       cgd  */
     41        1.1       cgd #define	CFB_SIZE		0x400000
     42        1.1       cgd 
     43        1.1       cgd /*
     44        1.1       cgd  * Offsets into slot space of each functional unit.
     45        1.1       cgd  */
     46        1.1       cgd #define	CFB_FB_OFFSET		0x000000	/* Frame buffer */
     47        1.1       cgd #define	CFB_FB_SIZE		0x100000
     48        1.1       cgd #define	CFB_RAMDAC_OFFSET	0x200000	/* Bt495 RAMDAC Registers */
     49        1.1       cgd #define	CFB_RAMDAC_SIZE		0x100000
     50        1.1       cgd #define	CFB_IREQCTRL_OFFSET	0x300000	/* IReq Control region */
     51        1.1       cgd #define	CFB_IREQCTRL_SIZE	0x080000
     52        1.1       cgd 
     53        1.1       cgd /*
     54        1.1       cgd  * Bt459 RAMDAC registers (offsets from CFB_RAMDAC_OFFSET)
     55        1.1       cgd  */
     56        1.1       cgd #define	CFB_RAMDAC_ADDRLOW	0x0000	/* Address register low byte */
     57        1.1       cgd #define	CFB_RAMDAC_ADDRHIGH	0x0004	/* Address register high byte */
     58        1.1       cgd #define	CFB_RAMDAC_REGDATA	0x0008	/* Register addressed by addr reg */
     59        1.1       cgd #define	CFB_RAMDAC_CMAPDATA	0x000c	/* Colormap loc addressed by addr reg */
     60