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 */ 60