i386/libsaio/pci.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright 1994 NeXT Computer, Inc.
  27  * All rights reserved.
  28  */
  29
  30 #ifndef __LIBSAIO_PCI_H
  31 #define __LIBSAIO_PCI_H
  32
  33 typedef struct _pci_slot_info {
  34     unsigned long int pid, sid;
  35     unsigned dev;
  36     unsigned func;
  37     unsigned bus;
  38 } _pci_slot_info_t;
  39
  40 extern _pci_slot_info_t *PCISlotInfo;
  41
  42 /* The IOPCIConfigSpace structure can be used to decode the 256 byte
  43  * configuration space presented by each PCI device.  This structure
  44  * is based on the PCI LOCAL BUS SPECIFICATION, rev 2.1, section 6.1
  45  */
  46
  47 typedef struct _IOPCIConfigSpace {
  48         unsigned short  VendorID;
  49         unsigned short  DeviceID;
  50         unsigned short  Command;
  51         unsigned short  Status;
  52         unsigned long   RevisionID:8;
  53         unsigned long   ClassCode:24;
  54         unsigned char   CacheLineSize;
  55         unsigned char   LatencyTimer;
  56         unsigned char   HeaderType;
  57         unsigned char   BuiltInSelfTest;
  58         unsigned long   BaseAddress[6];
  59         unsigned long   CardbusCISpointer;
  60         unsigned short  SubVendorID;
  61         unsigned short  SubDeviceID;
  62         unsigned long   ROMBaseAddress;
  63         unsigned long   reserved3;
  64         unsigned long   reserved4;
  65         unsigned char   InterruptLine;
  66         unsigned char   InterruptPin;
  67         unsigned char   MinGrant;
  68         unsigned char   MaxLatency;
  69         unsigned long   VendorUnique[48];
  70 } IOPCIConfigSpace;
  71
  72
  73 /* PCI_DEFAULT_DATA is the value resulting from a read to a non-existent
  74  * PCI device's configuration space.
  75  */
  76
  77 #define PCI_DEFAULT_DATA        0xffffffff
  78
  79
  80 /* PCI_INVALID_VENDOR_ID is a Vendor ID reserved by the PCI/SIG and is
  81  * guaranteed not to be assigned to any vendor.
  82  */
  83
  84 #define PCI_INVALID_VENDOR_ID   0xffff
  85
  86 #endif /* !__LIBSAIO_PCI_H */