446 lines
16 KiB
C
446 lines
16 KiB
C
/*
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* Copyright 1998 by Concurrent Computer Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of Concurrent Computer
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* Corporation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Concurrent Computer Corporation makes no representations
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* about the suitability of this software for any purpose. It is
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* provided "as is" without express or implied warranty.
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*
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* CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* Copyright 1998 by Metro Link Incorporated
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of Metro Link
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* Incorporated not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Metro Link Incorporated makes no representations
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* about the suitability of this software for any purpose. It is
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* provided "as is" without express or implied warranty.
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*
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* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* This file is derived in part from the original xf86_PCI.h that included
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* following copyright message:
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*
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* Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of the above listed copyright holder(s)
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* not be used in advertising or publicity pertaining to distribution of
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* the software without specific, written prior permission. The above listed
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* copyright holder(s) make(s) no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/*
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* Copyright (c) 1999-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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/*
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* This file has the private Pci definitions. The public ones are imported
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* from xf86Pci.h. Drivers should not use this file.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#ifndef _PCI_H
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#define _PCI_H 1
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#include <X11/Xarch.h>
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#include <X11/Xfuncproto.h>
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#include "xf86Pci.h"
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#include "xf86PciInfo.h"
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/*
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* Global Definitions
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*/
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#define MAX_PCI_DEVICES 128 /* Max number of devices accomodated */
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/* by xf86scanpci */
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#if defined(sun) && defined(SVR4) && defined(sparc)
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# define MAX_PCI_BUSES 4096 /* Max number of PCI buses */
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#elif defined(__alpha__) && defined (linux)
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# define MAX_PCI_DOMAINS 512
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# define PCI_DOM_MASK 0x01fful
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# define MAX_PCI_BUSES (MAX_PCI_DOMAINS*256) /* 256 per domain */
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#else
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# define MAX_PCI_BUSES 256 /* Max number of PCI buses */
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#endif
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#define DEVID(vendor, device) \
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((CARD32)((PCI_##device << 16) | PCI_##vendor))
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#ifndef PCI_DOM_MASK
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# define PCI_DOM_MASK 0x0ffu
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#endif
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#define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu)
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/*
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* "b" contains an optional domain number.
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*/
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#define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \
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(((d) & 0x00001fu) << 11) | \
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(((f) & 0x000007u) << 8))
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#define PCI_MAKE_BUS(d,b) ((((d) & (PCI_DOM_MASK)) << 8) | ((b) & 0xffu))
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#define PCI_DOM_FROM_TAG(tag) (((tag) >> 24) & (PCI_DOM_MASK))
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#define PCI_BUS_FROM_TAG(tag) (((tag) >> 16) & (PCI_DOMBUS_MASK))
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#define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800u) >> 11)
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#define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700u) >> 8)
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#define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00u) >> 8)
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#define PCI_BDEV_FROM_TAG(tag) ((tag) & 0x00fff800u)
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#define PCI_DOM_FROM_BUS(bus) (((bus) >> 8) & (PCI_DOM_MASK))
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#define PCI_BUS_NO_DOMAIN(bus) ((bus) & 0xffu)
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#define PCI_TAG_NO_DOMAIN(tag) ((tag) & 0x00ffff00u)
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/*
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* Macros for bus numbers found in P2P headers.
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*/
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#define PCI_PRIMARY_BUS_EXTRACT(x, tag) \
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((((x) & PCI_PRIMARY_BUS_MASK ) >> 0) | (PCI_DOM_FROM_TAG(tag) << 8))
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#define PCI_SECONDARY_BUS_EXTRACT(x, tag) \
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((((x) & PCI_SECONDARY_BUS_MASK ) >> 8) | (PCI_DOM_FROM_TAG(tag) << 8))
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#define PCI_SUBORDINATE_BUS_EXTRACT(x, tag) \
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((((x) & PCI_SUBORDINATE_BUS_MASK) >> 16) | (PCI_DOM_FROM_TAG(tag) << 8))
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#define PCI_PRIMARY_BUS_INSERT(x, y) \
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(((x) & ~PCI_PRIMARY_BUS_MASK ) | (((y) & 0xffu) << 0))
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#define PCI_SECONDARY_BUS_INSERT(x, y) \
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(((x) & ~PCI_SECONDARY_BUS_MASK ) | (((y) & 0xffu) << 8))
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#define PCI_SUBORDINATE_BUS_INSERT(x, y) \
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(((x) & ~PCI_SUBORDINATE_BUS_MASK) | (((y) & 0xffu) << 16))
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/* Ditto for CardBus bridges */
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#define PCI_CB_PRIMARY_BUS_EXTRACT(x, tag) \
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PCI_PRIMARY_BUS_EXTRACT(x, tag)
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#define PCI_CB_CARDBUS_BUS_EXTRACT(x, tag) \
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PCI_SECONDARY_BUS_EXTRACT(x, tag)
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#define PCI_CB_SUBORDINATE_BUS_EXTRACT(x, tag) \
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PCI_SUBORDINATE_BUS_EXTRACT(x, tag)
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#define PCI_CB_PRIMARY_BUS_INSERT(x, tag) \
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PCI_PRIMARY_BUS_INSERT(x, tag)
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#define PCI_CB_CARDBUS_BUS_INSERT(x, tag) \
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PCI_SECONDARY_BUS_INSERT(x, tag)
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#define PCI_CB_SUBORDINATE_BUS_INSERT(x, tag) \
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PCI_SUBORDINATE_BUS_INSERT(x, tag)
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#if X_BYTE_ORDER == X_BIG_ENDIAN
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#define PCI_CPU(val) (((val >> 24) & 0x000000ff) | \
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((val >> 8) & 0x0000ff00) | \
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((val << 8) & 0x00ff0000) | \
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((val << 24) & 0xff000000))
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#define PCI_CPU16(val) (((val >> 8) & 0x000000ff) | \
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((val << 8) & 0x0000ff00))
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#else
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#define PCI_CPU(val) (val)
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#define PCI_CPU16(val) (val)
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#endif
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/*
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* Debug Macros/Definitions
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*/
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/* #define DEBUGPCI 2 */ /* Disable/enable trace in PCI code */
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#if defined(DEBUGPCI)
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# define PCITRACE(lvl,printfargs) \
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if (lvl > xf86Verbose) { \
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ErrorF printfargs; \
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}
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#else /* !defined(DEBUGPCI) */
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# define PCITRACE(lvl,printfargs)
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#endif /* !defined(DEBUGPCI) */
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/*
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* PCI Config mechanism definitions
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*/
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#define PCI_EN 0x80000000
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#define PCI_CFGMECH1_ADDRESS_REG 0xCF8
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#define PCI_CFGMECH1_DATA_REG 0xCFC
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#define PCI_CFGMECH1_MAXDEV 32
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/*
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* Select architecture specific PCI init function
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*/
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#if defined(__alpha__)
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# if defined(linux)
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# define ARCH_PCI_INIT axpPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# elif defined(__FreeBSD__) || defined(__OpenBSD__)
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# define ARCH_PCI_INIT freebsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# elif defined(__NetBSD__)
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# define ARCH_PCI_INIT netbsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__arm__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__hppa__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__ia64__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# elif defined(FreeBSD)
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# define ARCH_PCI_INIT freebsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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# define XF86SCANPCI_WRAPPER ia64ScanPCIWrapper
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#elif defined(__i386__) || defined(i386)
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# define ARCH_PCI_INIT ix86PciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# if defined(linux)
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# define ARCH_PCI_OS_INIT linuxPciInit
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# endif
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#elif defined(__mc68000__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__mips__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__powerpc__) || defined(__powerpc64__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN /* Needs kernel work to remove */
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# elif defined(__FreeBSD__) || defined(__OpenBSD__)
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# define ARCH_PCI_INIT freebsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# elif defined(__NetBSD__)
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# define ARCH_PCI_INIT netbsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# else
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# define ARCH_PCI_INIT ppcPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__s390__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__sh__)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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#elif defined(__sparc__) || defined(sparc)
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# if defined(linux)
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# define ARCH_PCI_INIT linuxPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# elif defined(sun)
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# define ARCH_PCI_INIT sparcPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# elif (defined(__OpenBSD__) || defined(__FreeBSD__)) && defined(__sparc64__)
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# define ARCH_PCI_INIT freebsdPciInit
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# endif
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# if !defined(__FreeBSD__)
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# define ARCH_PCI_PCI_BRIDGE sparcPciPciBridge
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# endif
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#elif defined(__amd64__) || defined(__amd64)
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# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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# define ARCH_PCI_INIT freebsdPciInit
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# else
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# define ARCH_PCI_INIT ix86PciInit
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# endif
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# define INCLUDE_XF86_MAP_PCI_MEM
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# define INCLUDE_XF86_NO_DOMAIN
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# if defined(linux)
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# define ARCH_PCI_OS_INIT linuxPciInit
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# endif
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#endif
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#ifndef ARCH_PCI_INIT
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#error No PCI support available for this architecture/OS combination
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#endif
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extern void ARCH_PCI_INIT(void);
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#if defined(ARCH_PCI_OS_INIT)
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extern void ARCH_PCI_OS_INIT(void);
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#endif
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#if defined(ARCH_PCI_PCI_BRIDGE)
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extern void ARCH_PCI_PCI_BRIDGE(pciConfigPtr pPCI);
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#endif
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#if defined(XF86SCANPCI_WRAPPER)
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typedef enum {
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SCANPCI_INIT,
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SCANPCI_TERM
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} scanpciWrapperOpt;
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extern void XF86SCANPCI_WRAPPER(scanpciWrapperOpt flags);
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#endif
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/*
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* Table of functions used to access a specific PCI bus domain
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* (e.g. a primary PCI bus and all of its secondaries)
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*/
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typedef struct pci_bus_funcs {
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CARD32 (*pciReadLong)(PCITAG, int);
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void (*pciWriteLong)(PCITAG, int, CARD32);
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void (*pciSetBitsLong)(PCITAG, int, CARD32, CARD32);
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ADDRESS (*pciAddrHostToBus)(PCITAG, PciAddrType, ADDRESS);
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ADDRESS (*pciAddrBusToHost)(PCITAG, PciAddrType, ADDRESS);
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/*
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* The next three are optional. If NULL, the corresponding function is
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* to be performed generically.
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*/
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CARD16 (*pciControlBridge)(int, CARD16, CARD16);
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void (*pciGetBridgeBuses)(int, int *, int *, int *);
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/* Use pointer's to avoid #include recursion */
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void (*pciGetBridgeResources)(int, pointer *, pointer *, pointer *);
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/* These are optional and will be implemented using read long
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* if not present. */
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CARD8 (*pciReadByte)(PCITAG, int);
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void (*pciWriteByte)(PCITAG, int, CARD8);
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CARD16 (*pciReadWord)(PCITAG, int);
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void (*pciWriteWord)(PCITAG, int, CARD16);
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} pciBusFuncs_t, *pciBusFuncs_p;
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/*
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* pciBusInfo_t - One structure per defined PCI bus
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*/
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typedef struct pci_bus_info {
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unsigned char configMech; /* PCI config type to use */
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unsigned char numDevices; /* Range of valid devnums */
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unsigned char secondary; /* Boolean: bus is a secondary */
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int primary_bus; /* Parent bus */
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pciBusFuncs_p funcs; /* PCI access functions */
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void *pciBusPriv; /* Implementation private data */
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pciConfigPtr bridge; /* bridge that opens this bus */
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} pciBusInfo_t;
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#define HOST_NO_BUS ((pciBusInfo_t *)(-1))
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/* configMech values */
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#define PCI_CFG_MECH_UNKNOWN 0 /* Not yet known */
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#define PCI_CFG_MECH_1 1 /* Most machines */
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#define PCI_CFG_MECH_2 2 /* Older PC's */
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#define PCI_CFG_MECH_OTHER 3 /* Something else */
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/* Generic PCI service functions and helpers */
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PCITAG pciGenFindFirst(void);
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PCITAG pciGenFindNext(void);
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CARD32 pciCfgMech1Read(PCITAG tag, int offset);
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void pciCfgMech1Write(PCITAG tag, int offset, CARD32 val);
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void pciCfgMech1SetBits(PCITAG tag, int offset, CARD32 mask,
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CARD32 val);
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CARD32 pciByteSwap(CARD32);
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Bool pciMfDev(int, int);
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ADDRESS pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS);
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extern void pciSetOSBIOSPtr(int (*bios_fn)(PCITAG Tag, int basereg, unsigned char * buf, int len));
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extern PCITAG (*pciFindFirstFP)(void);
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extern PCITAG (*pciFindNextFP)(void);
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extern CARD32 pciDevid;
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extern CARD32 pciDevidMask;
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extern int pciMaxBusNum;
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extern int pciBusNum;
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extern int pciDevNum;
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extern int pciFuncNum;
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extern PCITAG pciDeviceTag;
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extern int xf86MaxPciDevs;
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extern pciBusInfo_t *pciBusInfo[];
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#endif /* _PCI_H */
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