boot-122.tar.gz

[apple/boot.git] / i386 / libsaio / pci.h

diff --git a/i386/libsaio/pci.h b/i386/libsaio/pci.h
index 5a334bf764f9d564e203739a8fad1aa59c2d32aa..b57ec1747b23e6d25e4b27c9a79527dbafc15b64 100644 (file)
--- a/i386/libsaio/pci.h
+++ b/i386/libsaio/pci.h
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
+ * Portions Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights
  * Reserved.  This file contains Original Code and/or Modifications of
  * Original Code as defined in and that are subject to the Apple Public
- * Source License Version 1.1 (the "License").  You may not use this file
+ * Source License Version 2.0 (the "License").  You may not use this file
  * except in compliance with the License.  Please obtain a copy of the
  * License at http://www.apple.com/publicsource and read it before using
  * this file.
@@ -38,4 +38,48 @@ typedef struct _pci_slot_info {
 
 extern _pci_slot_info_t *PCISlotInfo;
 
+/* The IOPCIConfigSpace structure can be used to decode the 256 byte
+ * configuration space presented by each PCI device.  This structure
+ * is based on the PCI LOCAL BUS SPECIFICATION, rev 2.1, section 6.1
+ */
+
+typedef struct _IOPCIConfigSpace {
+       unsigned short  VendorID;
+       unsigned short  DeviceID;
+       unsigned short  Command;
+       unsigned short  Status;
+       unsigned long   RevisionID:8;
+       unsigned long   ClassCode:24;
+       unsigned char   CacheLineSize;
+       unsigned char   LatencyTimer;
+       unsigned char   HeaderType;
+       unsigned char   BuiltInSelfTest;
+       unsigned long   BaseAddress[6];
+       unsigned long   CardbusCISpointer;
+       unsigned short  SubVendorID;
+       unsigned short  SubDeviceID;
+       unsigned long   ROMBaseAddress;
+       unsigned long   reserved3;
+       unsigned long   reserved4;
+       unsigned char   InterruptLine;
+       unsigned char   InterruptPin;
+       unsigned char   MinGrant;
+       unsigned char   MaxLatency;
+       unsigned long   VendorUnique[48];
+} IOPCIConfigSpace;
+
+
+/* PCI_DEFAULT_DATA is the value resulting from a read to a non-existent
+ * PCI device's configuration space.
+ */
+
+#define PCI_DEFAULT_DATA       0xffffffff
+
+
+/* PCI_INVALID_VENDOR_ID is a Vendor ID reserved by the PCI/SIG and is
+ * guaranteed not to be assigned to any vendor.
+ */
+
+#define        PCI_INVALID_VENDOR_ID   0xffff
+
 #endif /* !__LIBSAIO_PCI_H */