1 /* $OpenBSD: bt485reg.h,v 1.2 2001/04/21 20:03:55 aaron Exp $ */
2 /* $NetBSD: bt485reg.h,v 1.1 1998/04/15 20:16:30 drochner Exp $ */
3
4 /*
5 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
6 * All rights reserved.
7 *
8 * Author: Chris G. Demetriou
9 *
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
15 *
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 *
20 * Carnegie Mellon requests users of this software to return to
21 *
22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23 * School of Computer Science
24 * Carnegie Mellon University
25 * Pittsburgh PA 15213-3890
26 *
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
29 */
30
31 /*
32 * Register definitions for the Brooktree Bt485A 170MHz Monolithic
33 * CMOS True-Color RAMDAC.
34 */
35
36
37 /*
38 * Directly-addressed registers.
39 */
40 #define BT485_REG_PCRAM_WRADDR 0x00
41 #define BT485_REG_PALETTE 0x01
42 #define BT485_REG_PIXMASK 0x02
43 #define BT485_REG_PCRAM_RDADDR 0x03
44 #define BT485_REG_COC_WRADDR 0x04
45 #define BT485_REG_COCDATA 0x05
46 #define BT485_REG_COMMAND_0 0x06
47 #define BT485_REG_COC_RDADDR 0x07
48 #define BT485_REG_COMMAND_1 0x08
49 #define BT485_REG_COMMAND_2 0x09
50 #define BT485_REG_STATUS 0x0a
51 #define BT485_REG_EXTENDED BT485_REG_STATUS
52 #define BT485_REG_CURSOR_RAM 0x0b
53 #define BT485_REG_CURSOR_X_LOW 0x0c
54 #define BT485_REG_CURSOR_X_HIGH 0x0d
55 #define BT485_REG_CURSOR_Y_LOW 0x0e
56 #define BT485_REG_CURSOR_Y_HIGH 0x0f
57
58 #define BT485_REG_MAX 0x0f
59
60 #define BT485_IREG_STATUS 0x00
61 #define BT485_IREG_COMMAND_3 0x01
62 #define BT485_IREG_COMMAND_4 0x02
63 #define BT485_IREG_RSA 0x20
64 #define BT485_IREG_GSA 0x21
65 #define BT485_IREG_BSA 0x22