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/*
* 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 "AS IS"
* 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 Mellon
* the rights to redistribute these changes.
*/
/*
* File: bt459.h
* Author: Alessandro Forin, Carnegie Mellon University
* Date: 9/90
*
* Defines for the bt459 Cursor/RAMDAC chip
*/
typedef struct {
volatile unsigned char addr_lo;
volatile unsigned char addr_hi;
volatile unsigned char addr_reg;
volatile unsigned char addr_cmap;
} bt459_regmap_t;
/*
* Additional registers addressed indirectly
*/
/* 0000-00ff Color Map entries */
/* 0100-010f Overlay color regs, unsupp */
#define BT459_REG_CCOLOR_1 0x0181 /* Cursor color regs */
#define BT459_REG_CCOLOR_2 0x0182
#define BT459_REG_CCOLOR_3 0x0183
#define BT459_REG_ID 0x0200 /* read-only, gives "4a" */
#define BT459_REG_CMD0 0x0201
#define BT459_REG_CMD1 0x0202
#define BT459_REG_CMD2 0x0203
#define BT459_REG_PRM 0x0204
/* 0205 reserved */
#define BT459_REG_PBM 0x0206
/* 0207 reserved */
#define BT459_REG_ORM 0x0208
#define BT459_REG_OBM 0x0209
#define BT459_REG_ILV 0x020a
#define BT459_REG_TEST 0x020b
#define BT459_REG_RSIG 0x020c
#define BT459_REG_GSIG 0x020d
#define BT459_REG_BSIG 0x020e
/* 020f-02ff reserved */
#define BT459_REG_CCR 0x0300
#define BT459_REG_CXLO 0x0301
#define BT459_REG_CXHI 0x0302
#define BT459_REG_CYLO 0x0303
#define BT459_REG_CYHI 0x0304
#define BT459_REG_WXLO 0x0305
#define BT459_REG_WXHI 0x0306
#define BT459_REG_WYLO 0x0307
#define BT459_REG_WYHI 0x0308
#define BT459_REG_WWLO 0x0309
#define BT459_REG_WWHI 0x030a
#define BT459_REG_WHLO 0x030b
#define BT459_REG_WHHI 0x030c
/* 030d-03ff reserved */
#define BT459_REG_CRAM_BASE 0x0400
#define BT459_REG_CRAM_END 0x07ff
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