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