iokit/Drivers/pci/drvApplePCI/AppleMacRiscPCI.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_APPLEMACRISCPCI_H
  31 #define _IOKIT_APPLEMACRISCPCI_H
  32
  33 #include <IOKit/pci/IOPCIBridge.h>
  34
  35 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  36
  37 enum {
  38     kBridgeSelfDevice = 11
  39 };
  40
  41 enum {
  42     kMacRISCAddressSelect       = 0x48
  43 };
  44
  45 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  46
  47 class AppleMacRiscPCI : public IOPCIBridge
  48 {
  49     OSDeclareDefaultStructors(AppleMacRiscPCI)
  50
  51 protected:
  52     IOSimpleLock *              lock;
  53     IODeviceMemory *            ioMemory;
  54     IOMemoryMap *               configAddrMap;
  55     IOMemoryMap *               configDataMap;
  56
  57     volatile UInt32     *       configAddr;
  58     volatile UInt8      *       configData;
  59
  60     UInt16                      coarseAddressMask;
  61     UInt16                      fineAddressMask;
  62     UInt8                       primaryBus;
  63     UInt8                       configDataOffsetMask;
  64
  65     inline bool setConfigSpace( IOPCIAddressSpace space, UInt8 offset );
  66     virtual UInt8 firstBusNum( void );
  67     virtual UInt8 lastBusNum( void );
  68
  69 public:
  70     virtual bool start( IOService * provider );
  71     virtual bool configure( IOService * provider );
  72
  73     virtual void free();
  74
  75     virtual IODeviceMemory * ioDeviceMemory( void );
  76
  77     virtual UInt32 configRead32( IOPCIAddressSpace space, UInt8 offset );
  78     virtual void configWrite32( IOPCIAddressSpace space,
  79                                         UInt8 offset, UInt32 data );
  80     virtual UInt16 configRead16( IOPCIAddressSpace space, UInt8 offset );
  81     virtual void configWrite16( IOPCIAddressSpace space,
  82                                         UInt8 offset, UInt16 data );
  83     virtual UInt8 configRead8( IOPCIAddressSpace space, UInt8 offset );
  84     virtual void configWrite8( IOPCIAddressSpace space,
  85                                         UInt8 offset, UInt8 data );
  86
  87     virtual IOPCIAddressSpace getBridgeSpace( void );
  88 };
  89
  90 class AppleMacRiscVCI : public AppleMacRiscPCI
  91 {
  92     OSDeclareDefaultStructors(AppleMacRiscVCI)
  93
  94 public:
  95     virtual bool configure( IOService * provider );
  96
  97     virtual IODeviceMemory * ioDeviceMemory( void );
  98
  99 };
 100
 101 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 102
 103 /* Definitions of UniNorth Target config registers */
 104 enum {
 105     kUniNGART_BASE              = 0x8c,
 106     kUniNAGP_BASE               = 0x90,
 107     kUniNGART_CTRL              = 0x94,
 108     kUniNINTERNAL_STATUS        = 0x98
 109 };
 110 enum {
 111     kGART_INV                   = 0x00000001,
 112     kGART_EN                    = 0x00000100,
 113     kGART_2xRESET               = 0x00010000
 114 };
 115
 116 class IORangeAllocator;
 117
 118 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 119
 120 class AppleMacRiscAGP : public AppleMacRiscPCI
 121 {
 122     OSDeclareDefaultStructors(AppleMacRiscAGP)
 123
 124 protected:
 125     IORangeAllocator *  agpRange;
 126     UInt32              agpBaseIndex;
 127     IOPhysicalAddress   systemBase;
 128     IOPhysicalLength    systemLength;
 129     volatile UInt32 *   gartArray;
 130     IOByteCount         gartLength;
 131     UInt8               targetAGPRegisters;
 132
 133 private:
 134     virtual IOReturn setAGPEnable( IOAGPDevice * master, bool enable,
 135                                         IOOptionBits options = 0 );
 136
 137 public:
 138
 139     virtual bool configure( IOService * provider );
 140
 141     virtual IOPCIDevice * createNub( OSDictionary * from );
 142
 143     virtual IOReturn saveDeviceState( IOPCIDevice * device,
 144                                       IOOptionBits options = 0 );
 145     virtual IOReturn restoreDeviceState( IOPCIDevice * device,
 146                                          IOOptionBits options = 0 );
 147
 148     virtual IOReturn createAGPSpace( IOAGPDevice * master,
 149                                      IOOptionBits options,
 150                                      IOPhysicalAddress * address,
 151                                      IOPhysicalLength * length );
 152
 153     virtual IOReturn destroyAGPSpace( IOAGPDevice * master );
 154
 155     virtual IORangeAllocator * getAGPRangeAllocator( IOAGPDevice * master );
 156
 157     virtual IOOptionBits getAGPStatus( IOAGPDevice * master,
 158                                       IOOptionBits options = 0 );
 159     virtual IOReturn resetAGPDevice( IOAGPDevice * master,
 160                                      IOOptionBits options = 0 );
 161
 162     virtual IOReturn getAGPSpace( IOAGPDevice * master,
 163                                   IOPhysicalAddress * address,
 164                                   IOPhysicalLength * length );
 165
 166     virtual IOReturn commitAGPMemory( IOAGPDevice * master,
 167                                       IOMemoryDescriptor * memory,
 168                                       IOByteCount agpOffset,
 169                                       IOOptionBits options = 0 );
 170
 171     virtual IOReturn releaseAGPMemory( IOAGPDevice * master,
 172                                        IOMemoryDescriptor * memory,
 173                                        IOByteCount agpOffset,
 174                                        IOOptionBits options = 0 );
 175 };
 176
 177 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 178
 179 #endif /* ! _IOKIT_APPLEMACRISCPCI_H */
 180