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74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
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/* $FreeBSD$ */
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/*
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* Copyright (c) 2000 by Matthew Jacob
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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 immediately at the beginning of the file, without modification,
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* 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 FOR
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* 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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/*
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* Definitions for the MCBUS System Bus found on
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* AlphaServer 4100 systems.
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*/
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enum mcbus_device_instvars {
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MCBUS_IVAR_MID,
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MCBUS_IVAR_GID,
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MCBUS_IVAR_TYPE,
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};
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#define MCBUS_ACCESSOR(A, B, T) \
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\
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static __inline T mcbus_get_ ## A(device_t dev) \
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{ \
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u_long v; \
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BUS_READ_IVAR(device_get_parent(dev), dev, MCBUS_IVAR_ ## B, &v); \
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return v; \
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}
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MCBUS_ACCESSOR(mid, MID, u_int8_t)
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MCBUS_ACCESSOR(gid, GID, u_int8_t)
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MCBUS_ACCESSOR(type, TYPE, u_int8_t)
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/*
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* The structure used to attach devices to the MCBUS
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*/
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struct mcbus_device {
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u_int8_t ma_gid; /* GID of MCBUS (MCBUS #) */
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u_int8_t ma_mid; /* Module ID on MCBUS */
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u_int8_t ma_type; /* Module "type" */
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u_int8_t ma_order; /* order of attachment */
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};
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#define MCBUS_GID_FROM_INSTANCE(unit) (7 - unit)
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/*
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* "types"
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*/
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#define MCBUS_TYPE_RES 0
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#define MCBUS_TYPE_UNK 1
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#define MCBUS_TYPE_MEM 2
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#define MCBUS_TYPE_CPU 3
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#define MCBUS_TYPE_PCI 4
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#define DEVTOMCBUS(dev) ((struct mcbus_device *) device_get_ivars(dev))
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