1 /* $OpenBSD: bt458reg.h,v 1.2 2003/06/02 18:53:18 jason Exp $ */
2
3 /*
4 * Copyright (c) 2003 Jason L. Wright (jason@thought.net)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * Brooktree Bt451, Bt457, Bt458 register definitions
31 */
32 #define BT_OV0 0x00 /* overlay 0 */
33 #define BT_OV1 0x01 /* overlay 1 */
34 #define BT_OV2 0x02 /* overlay 2 */
35 #define BT_OV3 0x03 /* overlay 3 */
36 #define BT_RMR 0x04 /* read mask */
37 #define BT_BMR 0x05 /* blink mask */
38 #define BT_CR 0x06 /* control */
39 #define BT_CTR 0x07 /* control/test */
40
41 #define BTCR_MPLX_5 0x80 /* multiplex select, 5:1 */
42 #define BTCR_MPLX_4 0x00 /* multiplex select, 4:1 */
43 #define BTCR_RAMENA 0x40 /* use color palette RAM */
44 #define BTCR_BLINK_M 0x30 /* blink mask */
45 #define BTCR_BLINK_1648 0x00 /* 16 on, 48 off */
46 #define BTCR_BLINK_1616 0x10 /* 16 on, 16 off */
47 #define BTCR_BLINK_3232 0x20 /* 32 on, 32 off */
48 #define BTCR_BLINK_6464 0x30 /* 64 on, 64 off */
49 #define BTCR_BLINKENA_OV1 0x08 /* OV1 blink enable */
50 #define BTCR_BLINKENA_OV0 0x04 /* OV0 blink enable */
51 #define BTCR_DISPENA_OV1 0x02 /* OV1 display enable */
52 #define BTCR_DISPENA_OV0 0x01 /* OV0 display enable */
53
54 #define BTCTR_R_ENA 0x01 /* red channel enable */
55 #define BTCTR_G_ENA 0x02 /* green channel enable */
56 #define BTCTR_B_ENA 0x04 /* blue channel enable */
57 #define BTCTR_NIB_M 0x08 /* nibble mask: */
58 #define BTCTR_NIB_LOW 0x08 /* low */
59 #define BTCTR_NIB_HIGH 0x00 /* high */