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85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
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/*-
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* Copyright (c) 1999 Matthew N. Dodd <winter@jurai.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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Standardized MCA configuration information
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*/
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#define MCA_MAX_SLOTS 8 /* max number of slots per bus */
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#define MCA_MB_SCSI_SLOT 8
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#define MCA_MB_VIDEO_SLOT 9
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#define MCA_MAX_ADAPTERS 9
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/*
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* When an ADF file talks about a POS register
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* its not talking about the same index we are
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* so provide this to convert ADF pos register
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* offsets to our register offsets. (Since
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* to us, POS0 and POS1 are just 2 more registers
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*/
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#define MCA_ADP_POS(pos) (pos + 2)
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#define MCA_POS0 0 /* low byte of board ID */
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#define MCA_POS1 1 /* high byte of board ID */
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#define MCA_POS2 2
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# define MCA_POS2_ENABLE 0x01 /* POS2, hi => adapter enabled */
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#define MCA_POS3 3
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#define MCA_POS4 4
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#define MCA_POS5 5
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# define MCA_POS5_CHCK_STAT 0x40 /* lo => CHCK status available */
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# define MCA_POS5_CHCK 0x80 /* lo => adapter CHCK signal */
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#define MCA_POS6 6 /* low byte of CHCK status */
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#define MCA_POS7 7 /* high byte of CHCK status */
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/*
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* MCA register addresses for IBM PS/2
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*/
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#define MCA_SYS_CTL_A_REG 0x92 /* PS/2 System Control Port A */
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#define MCA_SYS_CTL_B_REG 0x60 /* PS/2 System Control Port B */
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#define MCA_ARB_REG 0x90 /* MCA Arbitration port */
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#define MCA_CSF_REG 0x91 /* MCA Card Select Feedback */
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/*
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* 0x96, 0x97 POS Registers
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* 0x100 - 0x107 POS Registers
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*/
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#define MCA_MB_SETUP_REG 0x94 /* Motherboard setup register */
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# define MCA_MB_SETUP_DIS 0xff /* Disable motherboard setup */
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# define MCA_MB_SETUP_VIDEO 0xdf
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# define MCA_MB_SETUP_SCSI 0xf7 /* Pri. SCSI setup reg */
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# define MCA_MB_SETUP_SCSI_ALT 0xfd /* Alt. SCSI setup reg */
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#define MCA_ADAP_SETUP_REG 0x96 /* Adapter setup register */
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# define MCA_ADAP_SETUP_DIS 0x0 /* Disable adapter setup */
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# define MCA_ADAP_SET 0x08 /* Adapter setup mode */
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# define MCA_ADAP_CHR 0x80 /* Adapter channel reset */
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#define MCA_POS_REG(n) (0x100+(n)) /* POS registers 0-7 */
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