iokit/Drivers/pci/drvApplePCI/AppleI386PCI.h

   1 /*
   2  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved.
  24  *
  25  * HISTORY
  26  *
  27  */
  28
  29
  30 #ifndef _IOKIT_APPLEI386PCI_H
  31 #define _IOKIT_APPLEI386PCI_H
  32
  33 #include <IOKit/pci/IOPCIBridge.h>
  34
  35 class AppleI386PCI : public IOPCIBridge
  36 {
  37     OSDeclareDefaultStructors(AppleI386PCI)
  38
  39     IOSimpleLock *      lock;
  40     IODeviceMemory *    ioMemory;
  41
  42     UInt8               maxBusNum;        /* Highest valid Bus Number */
  43     UInt8               maxDevNum;        /* Highest valid Device Number */
  44     bool                BIOS16Present;    /* booter found PCI BIOS 16 */
  45     bool                configMethod1;    /* host bridge supports CM1 */
  46     bool                configMethod2;    /* host bridge supports CM2 */
  47     bool                specialCycle1;    /* host bridge supports SC1 */
  48     bool                specialCycle2;    /* host bridge supports SC2 */
  49     bool                BIOS32Present;    /* init found PCI BIOS 32 */
  50     void                *BIOS32Entry;     /* Points to 32 bit PCI entry pt */
  51     int                 majorVersion;     /* Packed BCD Major Rev#: 0x02 */
  52     int                 minorVersion;     /* Packed BCD Minor Rev#: 0x00 */
  53
  54 private:
  55     virtual UInt32 configRead32Method1( IOPCIAddressSpace space,
  56                                         UInt8 offset );
  57     virtual void configWrite32Method1( IOPCIAddressSpace space,
  58                                         UInt8 offset, UInt32 data );
  59     virtual UInt16 configRead16Method1( IOPCIAddressSpace space,
  60                                         UInt8 offset );
  61     virtual void configWrite16Method1( IOPCIAddressSpace space,
  62                                         UInt8 offset, UInt16 data );
  63     virtual UInt8 configRead8Method1( IOPCIAddressSpace space,
  64                                         UInt8 offset );
  65     virtual void configWrite8Method1( IOPCIAddressSpace space,
  66                                         UInt8 offset, UInt8 data );
  67
  68     virtual UInt32 configRead32Method2( IOPCIAddressSpace space,
  69                                         UInt8 offset );
  70     virtual void configWrite32Method2( IOPCIAddressSpace space,
  71                                         UInt8 offset, UInt32 data );
  72     virtual UInt16 configRead16Method2( IOPCIAddressSpace space,
  73                                         UInt8 offset );
  74     virtual void configWrite16Method2( IOPCIAddressSpace space,
  75                                         UInt8 offset, UInt16 data );
  76     virtual UInt8 configRead8Method2( IOPCIAddressSpace space,
  77                                         UInt8 offset );
  78     virtual void configWrite8Method2( IOPCIAddressSpace space,
  79                                         UInt8 offset, UInt8 data );
  80
  81     virtual IOPCIAddressSpace getBridgeSpace( void );
  82
  83 protected:
  84     virtual UInt8 firstBusNum( void );
  85     virtual UInt8 lastBusNum( void );
  86
  87 public:
  88     virtual bool start( IOService * provider );
  89     virtual bool configure( IOService * provider );
  90
  91     virtual void free();
  92     virtual IODeviceMemory * ioDeviceMemory( void );
  93
  94     virtual UInt32 configRead32( IOPCIAddressSpace space, UInt8 offset );
  95     virtual void configWrite32( IOPCIAddressSpace space,
  96                                         UInt8 offset, UInt32 data );
  97     virtual UInt16 configRead16( IOPCIAddressSpace space, UInt8 offset );
  98     virtual void configWrite16( IOPCIAddressSpace space,
  99                                         UInt8 offset, UInt16 data );
 100     virtual UInt8 configRead8( IOPCIAddressSpace space, UInt8 offset );
 101     virtual void configWrite8( IOPCIAddressSpace space,
 102                                         UInt8 offset, UInt8 data );
 103 };
 104
 105 #endif /* ! _IOKIT_APPLEI386PCI_H */
 106