i386/libsaio/pci.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright 1994 NeXT Computer, Inc.
  26  * All rights reserved.
  27  */
  28
  29 #ifndef __LIBSAIO_PCI_H
  30 #define __LIBSAIO_PCI_H
  31
  32 typedef struct _pci_slot_info {
  33     unsigned long int pid, sid;
  34     unsigned dev;
  35     unsigned func;
  36     unsigned bus;
  37 } _pci_slot_info_t;
  38
  39 extern _pci_slot_info_t *PCISlotInfo;
  40
  41 /* The IOPCIConfigSpace structure can be used to decode the 256 byte
  42  * configuration space presented by each PCI device.  This structure
  43  * is based on the PCI LOCAL BUS SPECIFICATION, rev 2.1, section 6.1
  44  */
  45
  46 typedef struct _IOPCIConfigSpace {
  47         unsigned short  VendorID;
  48         unsigned short  DeviceID;
  49         unsigned short  Command;
  50         unsigned short  Status;
  51         unsigned long   RevisionID:8;
  52         unsigned long   ClassCode:24;
  53         unsigned char   CacheLineSize;
  54         unsigned char   LatencyTimer;
  55         unsigned char   HeaderType;
  56         unsigned char   BuiltInSelfTest;
  57         unsigned long   BaseAddress[6];
  58         unsigned long   CardbusCISpointer;
  59         unsigned short  SubVendorID;
  60         unsigned short  SubDeviceID;
  61         unsigned long   ROMBaseAddress;
  62         unsigned long   reserved3;
  63         unsigned long   reserved4;
  64         unsigned char   InterruptLine;
  65         unsigned char   InterruptPin;
  66         unsigned char   MinGrant;
  67         unsigned char   MaxLatency;
  68         unsigned long   VendorUnique[48];
  69 } IOPCIConfigSpace;
  70
  71
  72 /* PCI_DEFAULT_DATA is the value resulting from a read to a non-existent
  73  * PCI device's configuration space.
  74  */
  75
  76 #define PCI_DEFAULT_DATA        0xffffffff
  77
  78
  79 /* PCI_INVALID_VENDOR_ID is a Vendor ID reserved by the PCI/SIG and is
  80  * guaranteed not to be assigned to any vendor.
  81  */
  82
  83 #define PCI_INVALID_VENDOR_ID   0xffff
  84
  85 #endif /* !__LIBSAIO_PCI_H */