160 lines
5.1 KiB
C
160 lines
5.1 KiB
C
/* $NetBSD: mfbreg.h,v 1.4 1994/10/26 21:09:11 cgd Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mfbreg.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* This configuration uses two twin Bt431s and a single Bt455 colour map.
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* (Yep, that's a colour map on a single bitplane mono display)
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*/
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#define SET_VALUE(x) (((x)<<8)|((x)&0xff))
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#define GET_VALUE(x) ((x)&0xff)
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typedef struct {
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volatile u_short addr_lo;
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short pad0;
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volatile u_short addr_hi;
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short pad1;
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volatile u_short addr_cmap;
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short pad2;
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volatile u_short addr_reg;
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short pad3;
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} bt431_regmap_t;
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/*
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* Generic register access
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*/
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/* when using autoincrement */
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#define BT431_WRITE_REG_AUTOI(regs, val) { \
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(regs)->addr_reg = SET_VALUE(val); \
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MachEmptyWriteBuffer(); \
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}
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#define BT431_READ_REG_AUTOI(regs) \
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GET_VALUE(((regs)->addr_reg))
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#define BT431_WRITE_CMAP_AUTOI(regs, val) { \
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(regs)->addr_cmap = (val); \
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MachEmptyWriteBuffer(); \
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}
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#define BT431_READ_CMAP_AUTOI(regs) \
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((regs)->addr_cmap)
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typedef struct {
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volatile u_char addr_cmap;
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char pad0[3];
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volatile u_char addr_cmap_data;
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char pad1[3];
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volatile u_char addr_clr;
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char pad2[3];
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volatile u_char addr_ovly;
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char pad3[3];
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} bt455_regmap_t;
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/*
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* Generic register access
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*/
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#define BT455_SELECT_ENTRY(regs, regno) { \
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(regs)->addr_cmap = (regno)&0x0f; \
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MachEmptyWriteBuffer(); \
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}
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/*
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* Additional registers addressed indirectly
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*/
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#define BT431_REG_CMD 0x0000
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#define BT431_REG_CXLO 0x0001
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#define BT431_REG_CXHI 0x0002
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#define BT431_REG_CYLO 0x0003
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#define BT431_REG_CYHI 0x0004
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#define BT431_REG_WXLO 0x0005
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#define BT431_REG_WXHI 0x0006
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#define BT431_REG_WYLO 0x0007
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#define BT431_REG_WYHI 0x0008
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#define BT431_REG_WWLO 0x0009
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#define BT431_REG_WWHI 0x000a
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#define BT431_REG_WHLO 0x000b
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#define BT431_REG_WHHI 0x000c
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#define BT431_REG_CRAM_BASE 0x0000
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#define BT431_REG_CRAM_END 0x01ff
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/*
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* Command register
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*/
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#define BT431_CMD_CURS_ENABLE 0x40
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#define BT431_CMD_XHAIR_ENABLE 0x20
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#define BT431_CMD_OR_CURSORS 0x10
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#define BT431_CMD_AND_CURSORS 0x00
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#define BT431_CMD_1_1_MUX 0x00
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#define BT431_CMD_4_1_MUX 0x04
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#define BT431_CMD_5_1_MUX 0x08
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#define BT431_CMD_xxx_MUX 0x0c
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#define BT431_CMD_THICK_1 0x00
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#define BT431_CMD_THICK_3 0x01
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#define BT431_CMD_THICK_5 0x02
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#define BT431_CMD_THICK_7 0x03
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