| 1 | /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/Pci.h,v 1.45 2004/02/02 03:55:31 dawes Exp $ */
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| 2 | /*
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| 3 | * Copyright 1998 by Concurrent Computer Corporation
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| 4 | *
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| 5 | * Permission to use, copy, modify, distribute, and sell this software
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| 6 | * and its documentation for any purpose is hereby granted without fee,
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| 7 | * provided that the above copyright notice appear in all copies and that
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| 8 | * both that copyright notice and this permission notice appear in
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| 9 | * supporting documentation, and that the name of Concurrent Computer
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| 10 | * Corporation not be used in advertising or publicity pertaining to
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| 11 | * distribution of the software without specific, written prior
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| 12 | * permission. Concurrent Computer Corporation makes no representations
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| 13 | * about the suitability of this software for any purpose. It is
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| 14 | * provided "as is" without express or implied warranty.
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| 15 | *
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| 16 | * CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
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| 17 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 18 | * AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
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| 19 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 20 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 21 | * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 22 | * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 23 | * SOFTWARE.
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| 24 | *
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| 25 | * Copyright 1998 by Metro Link Incorporated
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| 26 | *
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| 27 | * Permission to use, copy, modify, distribute, and sell this software
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| 28 | * and its documentation for any purpose is hereby granted without fee,
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| 29 | * provided that the above copyright notice appear in all copies and that
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| 30 | * both that copyright notice and this permission notice appear in
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| 31 | * supporting documentation, and that the name of Metro Link
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| 32 | * Incorporated not be used in advertising or publicity pertaining to
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| 33 | * distribution of the software without specific, written prior
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| 34 | * permission. Metro Link Incorporated makes no representations
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| 35 | * about the suitability of this software for any purpose. It is
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| 36 | * provided "as is" without express or implied warranty.
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| 37 | *
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| 38 | * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
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| 39 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 40 | * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
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| 41 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 42 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 43 | * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 44 | * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 45 | * SOFTWARE.
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| 46 | *
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| 47 | * This file is derived in part from the original xf86_PCI.h that included
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| 48 | * following copyright message:
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| 49 | *
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| 50 | * Copyright 1995 by Robin Cutshaw <[email protected]>
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| 51 | *
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| 52 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 53 | * documentation for any purpose is hereby granted without fee, provided that
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| 54 | * the above copyright notice appear in all copies and that both that
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| 55 | * copyright notice and this permission notice appear in supporting
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| 56 | * documentation, and that the names of the above listed copyright holder(s)
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| 57 | * not be used in advertising or publicity pertaining to distribution of
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| 58 | * the software without specific, written prior permission. The above listed
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| 59 | * copyright holder(s) make(s) no representations about the suitability of this
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| 60 | * software for any purpose. It is provided "as is" without express or
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| 61 | * implied warranty.
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| 62 | *
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| 63 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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| 64 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 65 | * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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| 66 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 67 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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| 68 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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| 69 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 70 | *
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| 71 | */
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| 72 | /*
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| 73 | * Copyright (c) 1999-2003 by The XFree86 Project, Inc.
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| 74 | *
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| 75 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 76 | * copy of this software and associated documentation files (the "Software"),
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| 77 | * to deal in the Software without restriction, including without limitation
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| 78 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 79 | * and/or sell copies of the Software, and to permit persons to whom the
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| 80 | * Software is furnished to do so, subject to the following conditions:
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| 81 | *
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| 82 | * The above copyright notice and this permission notice shall be included in
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| 83 | * all copies or substantial portions of the Software.
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| 84 | *
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| 85 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 86 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 87 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 88 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 89 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 90 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 91 | * OTHER DEALINGS IN THE SOFTWARE.
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| 92 | *
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| 93 | * Except as contained in this notice, the name of the copyright holder(s)
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| 94 | * and author(s) shall not be used in advertising or otherwise to promote
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| 95 | * the sale, use or other dealings in this Software without prior written
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| 96 | * authorization from the copyright holder(s) and author(s).
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| 97 | */
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| 98 |
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| 99 |
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| 100 | /*
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| 101 | * This file has the private Pci definitions. The public ones are imported
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| 102 | * from xf86Pci.h. Drivers should not use this file.
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| 103 | */
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| 104 | #ifdef HAVE_XORG_CONFIG_H
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| 105 | #include <xorg-config.h>
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| 106 | #endif
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| 107 |
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| 108 | #ifndef _PCI_H
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| 109 | #define _PCI_H 1
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| 110 |
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| 111 | #include <X11/Xarch.h>
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| 112 | #include <X11/Xfuncproto.h>
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| 113 | #include "xf86Pci.h"
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| 114 | #include "xf86PciInfo.h"
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| 115 |
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| 116 | /*
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| 117 | * Global Definitions
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| 118 | */
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| 119 | #define MAX_PCI_DEVICES 128 /* Max number of devices accomodated */
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| 120 | /* by xf86scanpci */
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| 121 | #if defined(sun) && defined(SVR4) && defined(sparc)
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| 122 | # define MAX_PCI_BUSES 4096 /* Max number of PCI buses */
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| 123 | #elif defined(__alpha__) && defined (linux)
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| 124 | # define MAX_PCI_DOMAINS 512
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| 125 | # define PCI_DOM_MASK 0x01fful
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| 126 | # define MAX_PCI_BUSES (MAX_PCI_DOMAINS*256) /* 256 per domain */
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| 127 | #else
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| 128 | # define MAX_PCI_BUSES 256 /* Max number of PCI buses */
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| 129 | #endif
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| 130 |
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| 131 | #define DEVID(vendor, device) \
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| 132 | ((CARD32)((PCI_##device << 16) | PCI_##vendor))
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| 133 |
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| 134 | #ifndef PCI_DOM_MASK
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| 135 | # define PCI_DOM_MASK 0x0ffu
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| 136 | #endif
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| 137 | #define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu)
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| 138 |
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| 139 | /*
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| 140 | * "b" contains an optional domain number.
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| 141 | */
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| 142 | #define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \
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| 143 | (((d) & 0x00001fu) << 11) | \
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| 144 | (((f) & 0x000007u) << 8))
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| 145 |
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| 146 | #define PCI_MAKE_BUS(d,b) ((((d) & (PCI_DOM_MASK)) << 8) | ((b) & 0xffu))
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| 147 |
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| 148 | #define PCI_DOM_FROM_TAG(tag) (((tag) >> 24) & (PCI_DOM_MASK))
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| 149 | #define PCI_BUS_FROM_TAG(tag) (((tag) >> 16) & (PCI_DOMBUS_MASK))
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| 150 | #define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800u) >> 11)
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| 151 | #define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700u) >> 8)
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| 152 |
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| 153 | #define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00u) >> 8)
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| 154 | #define PCI_BDEV_FROM_TAG(tag) ((tag) & 0x00fff800u)
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| 155 |
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| 156 | #define PCI_DOM_FROM_BUS(bus) (((bus) >> 8) & (PCI_DOM_MASK))
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| 157 | #define PCI_BUS_NO_DOMAIN(bus) ((bus) & 0xffu)
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| 158 | #define PCI_TAG_NO_DOMAIN(tag) ((tag) & 0x00ffff00u)
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| 159 |
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| 160 | /*
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| 161 | * Macros for bus numbers found in P2P headers.
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| 162 | */
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| 163 | #define PCI_PRIMARY_BUS_EXTRACT(x, tag) \
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| 164 | ((((x) & PCI_PRIMARY_BUS_MASK ) >> 0) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 165 | #define PCI_SECONDARY_BUS_EXTRACT(x, tag) \
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| 166 | ((((x) & PCI_SECONDARY_BUS_MASK ) >> 8) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 167 | #define PCI_SUBORDINATE_BUS_EXTRACT(x, tag) \
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| 168 | ((((x) & PCI_SUBORDINATE_BUS_MASK) >> 16) | (PCI_DOM_FROM_TAG(tag) << 8))
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| 169 |
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| 170 | #define PCI_PRIMARY_BUS_INSERT(x, y) \
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| 171 | (((x) & ~PCI_PRIMARY_BUS_MASK ) | (((y) & 0xffu) << 0))
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| 172 | #define PCI_SECONDARY_BUS_INSERT(x, y) \
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| 173 | (((x) & ~PCI_SECONDARY_BUS_MASK ) | (((y) & 0xffu) << 8))
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| 174 | #define PCI_SUBORDINATE_BUS_INSERT(x, y) \
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| 175 | (((x) & ~PCI_SUBORDINATE_BUS_MASK) | (((y) & 0xffu) << 16))
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| 176 |
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| 177 | /* Ditto for CardBus bridges */
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| 178 | #define PCI_CB_PRIMARY_BUS_EXTRACT(x, tag) \
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| 179 | PCI_PRIMARY_BUS_EXTRACT(x, tag)
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| 180 | #define PCI_CB_CARDBUS_BUS_EXTRACT(x, tag) \
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| 181 | PCI_SECONDARY_BUS_EXTRACT(x, tag)
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| 182 | #define PCI_CB_SUBORDINATE_BUS_EXTRACT(x, tag) \
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| 183 | PCI_SUBORDINATE_BUS_EXTRACT(x, tag)
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| 184 |
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| 185 | #define PCI_CB_PRIMARY_BUS_INSERT(x, tag) \
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| 186 | PCI_PRIMARY_BUS_INSERT(x, tag)
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| 187 | #define PCI_CB_CARDBUS_BUS_INSERT(x, tag) \
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| 188 | PCI_SECONDARY_BUS_INSERT(x, tag)
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| 189 | #define PCI_CB_SUBORDINATE_BUS_INSERT(x, tag) \
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| 190 | PCI_SUBORDINATE_BUS_INSERT(x, tag)
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| 191 |
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| 192 | #if X_BYTE_ORDER == X_BIG_ENDIAN
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| 193 | #define PCI_CPU(val) (((val >> 24) & 0x000000ff) | \
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| 194 | ((val >> 8) & 0x0000ff00) | \
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| 195 | ((val << 8) & 0x00ff0000) | \
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| 196 | ((val << 24) & 0xff000000))
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| 197 | #define PCI_CPU16(val) (((val >> 8) & 0x000000ff) | \
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| 198 | ((val << 8) & 0x0000ff00))
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| 199 | #else
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| 200 | #define PCI_CPU(val) (val)
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| 201 | #define PCI_CPU16(val) (val)
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| 202 | #endif
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| 203 |
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| 204 | /*
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| 205 | * Debug Macros/Definitions
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| 206 | */
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| 207 | /* #define DEBUGPCI 2 */ /* Disable/enable trace in PCI code */
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| 208 |
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| 209 | #if defined(DEBUGPCI)
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| 210 |
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| 211 | # define PCITRACE(lvl,printfargs) \
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| 212 | if (lvl > xf86Verbose) { \
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| 213 | ErrorF printfargs; \
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| 214 | }
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| 215 |
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| 216 | #else /* !defined(DEBUGPCI) */
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| 217 |
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| 218 | # define PCITRACE(lvl,printfargs)
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| 219 |
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| 220 | #endif /* !defined(DEBUGPCI) */
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| 221 |
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| 222 | /*
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| 223 | * PCI Config mechanism definitions
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| 224 | */
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| 225 | #define PCI_EN 0x80000000
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| 226 |
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| 227 | #define PCI_CFGMECH1_ADDRESS_REG 0xCF8
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| 228 | #define PCI_CFGMECH1_DATA_REG 0xCFC
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| 229 |
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| 230 | #define PCI_CFGMECH1_MAXDEV 32
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| 231 |
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| 232 | /*
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| 233 | * Select architecture specific PCI init function
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| 234 | */
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| 235 | #if defined(__alpha__)
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| 236 | # if defined(linux)
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| 237 | # define ARCH_PCI_INIT axpPciInit
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| 238 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 239 | # elif defined(__FreeBSD__) || defined(__OpenBSD__)
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| 240 | # define ARCH_PCI_INIT freebsdPciInit
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| 241 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 242 | # define INCLUDE_XF86_NO_DOMAIN
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| 243 | # elif defined(__NetBSD__)
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| 244 | # define ARCH_PCI_INIT netbsdPciInit
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| 245 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 246 | # define INCLUDE_XF86_NO_DOMAIN
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| 247 | # endif
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| 248 | #elif defined(__arm__)
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| 249 | # if defined(linux)
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| 250 | # define ARCH_PCI_INIT linuxPciInit
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| 251 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 252 | # define INCLUDE_XF86_NO_DOMAIN
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| 253 | # endif
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| 254 | #elif defined(__hppa__)
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| 255 | # if defined(linux)
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| 256 | # define ARCH_PCI_INIT linuxPciInit
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| 257 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 258 | # define INCLUDE_XF86_NO_DOMAIN
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| 259 | # endif
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| 260 | #elif defined(__ia64__)
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| 261 | # if defined(linux)
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| 262 | # define ARCH_PCI_INIT linuxPciInit
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| 263 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 264 | # elif defined(FreeBSD)
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| 265 | # define ARCH_PCI_INIT freebsdPciInit
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| 266 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 267 | # define INCLUDE_XF86_NO_DOMAIN
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| 268 | # endif
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| 269 | # define XF86SCANPCI_WRAPPER ia64ScanPCIWrapper
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| 270 | #elif defined(__i386__) || defined(i386)
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| 271 | # define ARCH_PCI_INIT ix86PciInit
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| 272 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 273 | # define INCLUDE_XF86_NO_DOMAIN
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| 274 | # if defined(linux)
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| 275 | # define ARCH_PCI_OS_INIT linuxPciInit
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| 276 | # endif
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| 277 | #elif defined(__mc68000__)
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| 278 | # if defined(linux)
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| 279 | # define ARCH_PCI_INIT linuxPciInit
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| 280 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 281 | # define INCLUDE_XF86_NO_DOMAIN
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| 282 | # endif
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| 283 | #elif defined(__mips__)
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| 284 | # if defined(linux)
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| 285 | # define ARCH_PCI_INIT linuxPciInit
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| 286 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 287 | # define INCLUDE_XF86_NO_DOMAIN
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| 288 | # endif
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| 289 | #elif defined(__powerpc__) || defined(__powerpc64__)
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| 290 | # if defined(linux)
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| 291 | # define ARCH_PCI_INIT linuxPciInit
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| 292 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 293 | # define INCLUDE_XF86_NO_DOMAIN /* Needs kernel work to remove */
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| 294 | # elif defined(__FreeBSD__) || defined(__OpenBSD__)
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| 295 | # define ARCH_PCI_INIT freebsdPciInit
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| 296 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 297 | # define INCLUDE_XF86_NO_DOMAIN
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| 298 | # elif defined(__NetBSD__)
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| 299 | # define ARCH_PCI_INIT netbsdPciInit
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| 300 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 301 | # define INCLUDE_XF86_NO_DOMAIN
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| 302 | # else
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| 303 | # define ARCH_PCI_INIT ppcPciInit
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| 304 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 305 | # define INCLUDE_XF86_NO_DOMAIN
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| 306 | # endif
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| 307 | #elif defined(__s390__)
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| 308 | # if defined(linux)
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| 309 | # define ARCH_PCI_INIT linuxPciInit
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| 310 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 311 | # define INCLUDE_XF86_NO_DOMAIN
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| 312 | # endif
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| 313 | #elif defined(__sh__)
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| 314 | # if defined(linux)
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| 315 | # define ARCH_PCI_INIT linuxPciInit
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| 316 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 317 | # define INCLUDE_XF86_NO_DOMAIN
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| 318 | # endif
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| 319 | #elif defined(__sparc__) || defined(sparc)
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| 320 | # if defined(linux)
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| 321 | # define ARCH_PCI_INIT linuxPciInit
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| 322 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 323 | # elif defined(sun)
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| 324 | # define ARCH_PCI_INIT sparcPciInit
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| 325 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 326 | # elif (defined(__OpenBSD__) || defined(__FreeBSD__)) && defined(__sparc64__)
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| 327 | # define ARCH_PCI_INIT freebsdPciInit
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| 328 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 329 | # define INCLUDE_XF86_NO_DOMAIN
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| 330 | # endif
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| 331 | # if !defined(__FreeBSD__)
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| 332 | # define ARCH_PCI_PCI_BRIDGE sparcPciPciBridge
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| 333 | # endif
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| 334 | #elif defined(__amd64__) || defined(__amd64)
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| 335 | # if defined(__FreeBSD__)
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| 336 | # define ARCH_PCI_INIT freebsdPciInit
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| 337 | # else
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| 338 | # define ARCH_PCI_INIT ix86PciInit
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| 339 | # endif
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| 340 | # define INCLUDE_XF86_MAP_PCI_MEM
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| 341 | # define INCLUDE_XF86_NO_DOMAIN
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| 342 | # if defined(linux)
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| 343 | # define ARCH_PCI_OS_INIT linuxPciInit
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| 344 | # endif
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| 345 | #endif
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| 346 |
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| 347 | #ifndef ARCH_PCI_INIT
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| 348 | #error No PCI support available for this architecture/OS combination
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| 349 | #endif
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| 350 |
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| 351 | extern void ARCH_PCI_INIT(void);
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| 352 | #if defined(ARCH_PCI_OS_INIT)
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| 353 | extern void ARCH_PCI_OS_INIT(void);
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| 354 | #endif
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| 355 |
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| 356 | #if defined(ARCH_PCI_PCI_BRIDGE)
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| 357 | extern void ARCH_PCI_PCI_BRIDGE(pciConfigPtr pPCI);
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| 358 | #endif
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| 359 |
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| 360 | #if defined(XF86SCANPCI_WRAPPER)
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| 361 | typedef enum {
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| 362 | SCANPCI_INIT,
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| 363 | SCANPCI_TERM
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| 364 | } scanpciWrapperOpt;
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| 365 | extern void XF86SCANPCI_WRAPPER(scanpciWrapperOpt flags);
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| 366 | #endif
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| 367 |
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| 368 | /*
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| 369 | * Table of functions used to access a specific PCI bus domain
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| 370 | * (e.g. a primary PCI bus and all of its secondaries)
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| 371 | */
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| 372 | typedef struct pci_bus_funcs {
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| 373 | CARD32 (*pciReadLong)(PCITAG, int);
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| 374 | void (*pciWriteLong)(PCITAG, int, CARD32);
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| 375 | void (*pciSetBitsLong)(PCITAG, int, CARD32, CARD32);
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| 376 | ADDRESS (*pciAddrHostToBus)(PCITAG, PciAddrType, ADDRESS);
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| 377 | ADDRESS (*pciAddrBusToHost)(PCITAG, PciAddrType, ADDRESS);
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| 378 | /*
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| 379 | * The next three are optional. If NULL, the corresponding function is
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| 380 | * to be performed generically.
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| 381 | */
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| 382 | CARD16 (*pciControlBridge)(int, CARD16, CARD16);
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| 383 | void (*pciGetBridgeBuses)(int, int *, int *, int *);
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| 384 | /* Use pointer's to avoid #include recursion */
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| 385 | void (*pciGetBridgeResources)(int, pointer *, pointer *, pointer *);
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| 386 |
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| 387 | /* These are optional and will be implemented using read long
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| 388 | * if not present. */
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| 389 | CARD8 (*pciReadByte)(PCITAG, int);
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| 390 | void (*pciWriteByte)(PCITAG, int, CARD8);
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| 391 | CARD16 (*pciReadWord)(PCITAG, int);
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| 392 | void (*pciWriteWord)(PCITAG, int, CARD16);
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| 393 |
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| 394 | } pciBusFuncs_t, *pciBusFuncs_p;
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| 395 |
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| 396 | /*
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| 397 | * pciBusInfo_t - One structure per defined PCI bus
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| 398 | */
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| 399 | typedef struct pci_bus_info {
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| 400 | unsigned char configMech; /* PCI config type to use */
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| 401 | unsigned char numDevices; /* Range of valid devnums */
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| 402 | unsigned char secondary; /* Boolean: bus is a secondary */
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| 403 | int primary_bus; /* Parent bus */
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| 404 | pciBusFuncs_p funcs; /* PCI access functions */
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| 405 | void *pciBusPriv; /* Implementation private data */
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| 406 | pciConfigPtr bridge; /* bridge that opens this bus */
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| 407 | } pciBusInfo_t;
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| 408 |
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| 409 | #define HOST_NO_BUS ((pciBusInfo_t *)(-1))
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| 410 |
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| 411 | /* configMech values */
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| 412 | #define PCI_CFG_MECH_UNKNOWN 0 /* Not yet known */
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| 413 | #define PCI_CFG_MECH_1 1 /* Most machines */
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| 414 | #define PCI_CFG_MECH_2 2 /* Older PC's */
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| 415 | #define PCI_CFG_MECH_OTHER 3 /* Something else */
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| 416 |
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| 417 | /* Generic PCI service functions and helpers */
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| 418 | PCITAG pciGenFindFirst(void);
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| 419 | PCITAG pciGenFindNext(void);
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| 420 | CARD32 pciCfgMech1Read(PCITAG tag, int offset);
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| 421 | void pciCfgMech1Write(PCITAG tag, int offset, CARD32 val);
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| 422 | void pciCfgMech1SetBits(PCITAG tag, int offset, CARD32 mask,
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| 423 | CARD32 val);
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| 424 | CARD32 pciByteSwap(CARD32);
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| 425 | Bool pciMfDev(int, int);
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| 426 | ADDRESS pciAddrNOOP(PCITAG tag, PciAddrType type, ADDRESS);
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| 427 |
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| 428 | extern void pciSetOSBIOSPtr(int (*bios_fn)(PCITAG Tag, int basereg, unsigned char * buf, int len));
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| 429 | extern PCITAG (*pciFindFirstFP)(void);
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| 430 | extern PCITAG (*pciFindNextFP)(void);
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| 431 |
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| 432 | extern CARD32 pciDevid;
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| 433 | extern CARD32 pciDevidMask;
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| 434 |
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| 435 | extern int pciMaxBusNum;
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| 436 |
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| 437 | extern int pciBusNum;
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| 438 | extern int pciDevNum;
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| 439 | extern int pciFuncNum;
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| 440 | extern PCITAG pciDeviceTag;
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| 441 |
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| 442 | extern pciBusInfo_t *pciBusInfo[];
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| 443 |
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| 444 | #endif /* _PCI_H */
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