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Source at commit 1164 created 13 years 12 days ago. By azimutz, Add some pauses to nvidia.c and ati.c to help user feedback collection. | |
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1 | /*␊ |
2 | * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * This file contains Original Code and/or Modifications of Original Code␊ |
7 | * as defined in and that are subject to the Apple Public Source License␊ |
8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
9 | * compliance with the License. The rights granted to you under the License␊ |
10 | * may not be used to create, or enable the creation or redistribution of,␊ |
11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
13 | * terms of an Apple operating system software license agreement.␊ |
14 | * ␊ |
15 | * Please obtain a copy of the License at␊ |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
17 | * ␊ |
18 | * The Original Code and all software distributed under the License are␊ |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
23 | * Please see the License for the specific language governing rights and␊ |
24 | * limitations under the License.␊ |
25 | * ␊ |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
27 | */␊ |
28 | ␊ |
29 | #ifndef _IOKIT_IODMACONTROLLER_H␊ |
30 | #define _IOKIT_IODMACONTROLLER_H␊ |
31 | ␊ |
32 | #include <IOKit/IODMACommand.h>␊ |
33 | #include <IOKit/IODMAEventSource.h>␊ |
34 | #include <IOKit/IOService.h>␊ |
35 | ␊ |
36 | class IODMAEventSource;␊ |
37 | ␊ |
38 | class IODMAController : public IOService␊ |
39 | {␊ |
40 | OSDeclareAbstractStructors(IODMAController);␊ |
41 | ␊ |
42 | friend class IODMAEventSource;␊ |
43 | ␊ |
44 | private:␊ |
45 | IOService *_provider;␊ |
46 | const OSSymbol *_dmaControllerName;␊ |
47 | ␊ |
48 | protected:␊ |
49 | virtual void registerDMAController(IOOptionBits options = 0); ␊ |
50 | virtual IOReturn initDMAChannel(IOService *provider, IODMAEventSource *dmaES, UInt32 *dmaIndex, UInt32 reqIndex) = 0;␊ |
51 | virtual IOReturn startDMACommand(UInt32 dmaIndex, IODMACommand *dmaCommand, IODirection direction,␊ |
52 | ␉␉␉␉ IOByteCount byteCount = 0, IOByteCount byteOffset = 0) = 0;␊ |
53 | virtual IOReturn stopDMACommand(UInt32 dmaIndex, bool flush = false, uint64_t timeout = UINT64_MAX) = 0;␊ |
54 | virtual void completeDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand);␊ |
55 | virtual void notifyDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount);␊ |
56 | virtual IOReturn queryDMACommand(UInt32 dmaIndex, IODMACommand **dmaCommand, IOByteCount *transferCount, bool waitForIdle = false) = 0;␊ |
57 | virtual IOByteCount getFIFODepth(UInt32 dmaIndex) = 0;␊ |
58 | ␊ |
59 | public:␊ |
60 | static const OSSymbol *createControllerName(UInt32 phandle);␊ |
61 | static IODMAController *getController(IOService *provider, UInt32 dmaIndex);␊ |
62 | ␊ |
63 | virtual bool start(IOService *provider);␊ |
64 | };␊ |
65 | ␊ |
66 | ␊ |
67 | #endif /* _IOKIT_IODMACONTROLLER_H */␊ |
68 |