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/* $NetBSD: mfbreg.h,v 1.4 1994/10/26 21:09:11 cgd Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* 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.
*
* @(#)mfbreg.h 8.1 (Berkeley) 6/10/93
*/
/*
* Mach Operating System
* Copyright (c) 1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* This configuration uses two twin Bt431s and a single Bt455 colour map.
* (Yep, that's a colour map on a single bitplane mono display)
*/
#define SET_VALUE(x) (((x)<<8)|((x)&0xff))
#define GET_VALUE(x) ((x)&0xff)
typedef struct {
volatile u_short addr_lo;
short pad0;
volatile u_short addr_hi;
short pad1;
volatile u_short addr_cmap;
short pad2;
volatile u_short addr_reg;
short pad3;
} bt431_regmap_t;
/*
* Generic register access
*/
/* when using autoincrement */
#define BT431_WRITE_REG_AUTOI(regs, val) { \
(regs)->addr_reg = SET_VALUE(val); \
MachEmptyWriteBuffer(); \
}
#define BT431_READ_REG_AUTOI(regs) \
GET_VALUE(((regs)->addr_reg))
#define BT431_WRITE_CMAP_AUTOI(regs, val) { \
(regs)->addr_cmap = (val); \
MachEmptyWriteBuffer(); \
}
#define BT431_READ_CMAP_AUTOI(regs) \
((regs)->addr_cmap)
typedef struct {
volatile u_char addr_cmap;
char pad0[3];
volatile u_char addr_cmap_data;
char pad1[3];
volatile u_char addr_clr;
char pad2[3];
volatile u_char addr_ovly;
char pad3[3];
} bt455_regmap_t;
/*
* Generic register access
*/
#define BT455_SELECT_ENTRY(regs, regno) { \
(regs)->addr_cmap = (regno)&0x0f; \
MachEmptyWriteBuffer(); \
}
/*
* Additional registers addressed indirectly
*/
#define BT431_REG_CMD 0x0000
#define BT431_REG_CXLO 0x0001
#define BT431_REG_CXHI 0x0002
#define BT431_REG_CYLO 0x0003
#define BT431_REG_CYHI 0x0004
#define BT431_REG_WXLO 0x0005
#define BT431_REG_WXHI 0x0006
#define BT431_REG_WYLO 0x0007
#define BT431_REG_WYHI 0x0008
#define BT431_REG_WWLO 0x0009
#define BT431_REG_WWHI 0x000a
#define BT431_REG_WHLO 0x000b
#define BT431_REG_WHHI 0x000c
#define BT431_REG_CRAM_BASE 0x0000
#define BT431_REG_CRAM_END 0x01ff
/*
* Command register
*/
#define BT431_CMD_CURS_ENABLE 0x40
#define BT431_CMD_XHAIR_ENABLE 0x20
#define BT431_CMD_OR_CURSORS 0x10
#define BT431_CMD_AND_CURSORS 0x00
#define BT431_CMD_1_1_MUX 0x00
#define BT431_CMD_4_1_MUX 0x04
#define BT431_CMD_5_1_MUX 0x08
#define BT431_CMD_xxx_MUX 0x0c
#define BT431_CMD_THICK_1 0x00
#define BT431_CMD_THICK_3 0x01
#define BT431_CMD_THICK_5 0x02
#define BT431_CMD_THICK_7 0x03
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