1 /* $OpenBSD: bt463reg.h,v 1.2 2001/04/21 20:03:54 aaron Exp $ */
2 /* $NetBSD: bt463reg.h,v 1.1 1998/08/18 07:43:09 thorpej Exp $ */
3
4 /*-
5 * Copyright (c) 1998 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 /*
42 * Register definitions for the Brooktree Bt463 135MHz Monolithic
43 * CMOS TrueVu RAMDAC.
44 */
45
46 /*
47 * Directly-accessible registers. Note the address register is
48 * auto-incrementing.
49 */
50 #define BT463_REG_ADDR_LOW 0x00 /* C1,C0 == 0,0 */
51 #define BT463_REG_ADDR_HIGH 0x01 /* C1,C0 == 0,1 */
52 #define BT463_REG_IREG_DATA 0x02 /* C1,C0 == 1,0 */
53 #define BT463_REG_CMAP_DATA 0x03 /* C1,C0 == 1,1 */
54
55 #define BT463_REG_MAX BT463_REG_CMAP_DATA
56
57 /*
58 * All internal register access to the Bt463 is done indirectly via the
59 * Address Register (mapped into the host bus in a device-specific
60 * fashion). The following register definitions are in terms of
61 * their address register address values.
62 */
63
64 /* C1,C0 must be 1,0 */
65 #define BT463_IREG_CURSOR_COLOR_0 0x0100 /* 3 r/w cycles */
66 #define BT463_IREG_CURSOR_COLOR_1 0x0101 /* 3 r/w cycles */
67 #define BT463_IREG_ID 0x0200
68 #define BT463_IREG_COMMAND_0 0x0201
69 #define BT463_IREG_COMMAND_1 0x0202
70 #define BT463_IREG_COMMAND_2 0x0203
71 #define BT463_IREG_READ_MASK_P0_P7 0x0205
72 #define BT463_IREG_READ_MASK_P8_P15 0x0206
73 #define BT463_IREG_READ_MASK_P16_P23 0x0207
74 #define BT463_IREG_READ_MASK_P24_P27 0x0208
75 #define BT463_IREG_BLINK_MASK_P0_P7 0x0209
76 #define BT463_IREG_BLINK_MASK_P8_P15 0x020a
77 #define BT463_IREG_BLINK_MASK_P16_P23 0x020b
78 #define BT463_IREG_BLINK_MASK_P24_P27 0x020c
79 #define BT463_IREG_TEST 0x020d
80 #define BT463_IREG_INPUT_SIG 0x020e /* 2 of 3 r/w cycles */
81 #define BT463_IREG_OUTPUT_SIG 0x020f /* 3 r/w cycles */
82 #define BT463_IREG_REVISION 0x0220
83 #define BT463_IREG_WINDOW_TYPE_TABLE 0x0300 /* 3 r/w cycles */
84
85 #define BT463_NWTYPE_ENTRIES 0x10 /* 16 window type entries */
86
87 /* C1,C0 must be 1,1 */
88 #define BT463_IREG_CPALETTE_RAM 0x0000 /* 3 r/w cycles */
89
90 #define BT463_NCMAP_ENTRIES 0x210 /* 528 CMAP entries */