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1.1 root 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 UInt32 * 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:
79: virtual void configWrite32( IOPCIAddressSpace space,
80: UInt8 offset, UInt32 data );
81:
82: virtual IOPCIAddressSpace getBridgeSpace( void );
83: };
84:
85: class AppleMacRiscVCI : public AppleMacRiscPCI
86: {
87: OSDeclareDefaultStructors(AppleMacRiscVCI)
88:
89: public:
90: virtual bool configure( IOService * provider );
91:
92: virtual IODeviceMemory * ioDeviceMemory( void );
93:
94: };
95:
96: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
97:
98: /* Definitions of UniNorth Target config registers */
99: enum {
100: kUniNGART_BASE = 0x8c,
101: kUniNAGP_BASE = 0x90,
102: kUniNGART_CTRL = 0x94,
103: kUniNINTERNAL_STATUS = 0x98
104: };
105: enum {
106: kGART_INV = 0x00000001,
107: kGART_EN = 0x00000100,
108: kGART_2xRESET = 0x00010000
109: };
110:
111: class IORangeAllocator;
112:
113: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
114:
115: class AppleMacRiscAGP : public AppleMacRiscPCI
116: {
117: OSDeclareDefaultStructors(AppleMacRiscAGP)
118:
119: protected:
120: IORangeAllocator * agpRange;
121: UInt32 agpBaseIndex;
122: IOPhysicalAddress systemBase;
123: IOPhysicalLength systemLength;
124: volatile UInt32 * gartArray;
125: IOByteCount gartLength;
126:
127: private:
128: virtual IOReturn setAGPEnable( IOPCIAddressSpace master, bool enable,
129: IOOptionBits options = 0 );
130:
131: public:
132:
133: virtual bool configure( IOService * provider );
134:
135: virtual IOPCIDevice * createNub( OSDictionary * from );
136:
137: virtual IOReturn createAGPSpace( IOPCIAddressSpace master,
138: IOOptionBits options,
139: IOPhysicalAddress * address,
140: IOPhysicalLength * length );
141:
142: virtual IOReturn destroyAGPSpace( IOPCIAddressSpace master );
143:
144: virtual IORangeAllocator * getAGPRangeAllocator( IOPCIAddressSpace master );
145:
146: virtual IOOptionBits getAGPStatus( IOPCIAddressSpace master,
147: IOOptionBits options = 0 );
148:
149: virtual IOReturn commitAGPMemory( IOPCIAddressSpace master,
150: IOMemoryDescriptor * memory,
151: IOByteCount agpOffset,
152: IOOptionBits options = 0 );
153:
154: virtual IOReturn releaseAGPMemory( IOPCIAddressSpace master,
155: IOMemoryDescriptor * memory,
156: IOByteCount agpOffset );
157: };
158:
159: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
160:
161: #endif /* ! _IOKIT_APPLEMACRISCPCI_H */
162:
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