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| Source at commit 2862 created 7 years 25 days ago. By ifabio, Tag 2.3 release, bump svn to 2.4 | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 1998-2002 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) 1999-2002 Apple Computer, Inc. All rights reserved.␊ |
| 24 | *␊ |
| 25 | * A DCL program to interpret (in software) a program that's too complicated␊ |
| 26 | * for the DMA engine.␊ |
| 27 | *␊ |
| 28 | * HISTORY␊ |
| 29 | *␊ |
| 30 | */␊ |
| 31 | ␊ |
| 32 | ␊ |
| 33 | #ifndef _IOKIT_IOFWDCLTRANSLATOR_H␊ |
| 34 | #define _IOKIT_IOFWDCLTRANSLATOR_H␊ |
| 35 | ␊ |
| 36 | #include <libkern/c++/OSObject.h>␊ |
| 37 | #include <IOKit/firewire/IOFWDCLProgram.h>␊ |
| 38 | ␊ |
| 39 | ␊ |
| 40 | /*! @class IODCLTranslator␊ |
| 41 | */␊ |
| 42 | ␊ |
| 43 | class IODCLTranslator : public IODCLProgram␊ |
| 44 | {␊ |
| 45 | OSDeclareAbstractStructors(IODCLTranslator)␊ |
| 46 | ␊ |
| 47 | protected:␊ |
| 48 | enum␊ |
| 49 | {␊ |
| 50 | kNumPingPongs␉␉␉␉= 2,␊ |
| 51 | kNumPacketsPerPingPong␉␉= 500,␊ |
| 52 | kMaxIsochPacketSize␉␉␉= 1000,␊ |
| 53 | kPingPongBufferSize␉␉␉= kNumPingPongs * kNumPacketsPerPingPong * kMaxIsochPacketSize␊ |
| 54 | };␊ |
| 55 | ␊ |
| 56 | // Opcodes and buffer for pingpong program␊ |
| 57 | DCLLabel␉␉␉fStartLabel;␊ |
| 58 | DCLTransferPacket␉fTransfers[kNumPingPongs*kNumPacketsPerPingPong];␊ |
| 59 | DCLCallProc␉␉␉fCalls[kNumPingPongs];␊ |
| 60 | DCLJump␉␉␉␉fJumpToStart;␊ |
| 61 | UInt8␉␉␉␉fBuffer[kPingPongBufferSize];␊ |
| 62 | ␊ |
| 63 | IODCLProgram *␉␉fHWProgram;␉␉␉␉// Hardware program executing our opcodes␊ |
| 64 | DCLCommand*␉␉␉fToInterpret;␉␉␉// The commands to interpret␊ |
| 65 | DCLCommand*␉␉␉fCurrentDCLCommand;␉␉// Current command to interpret␊ |
| 66 | int␉␉␉␉␉fPingCount;␉␉␉␉// Are we pinging or ponging?␊ |
| 67 | UInt32␉␉␉␉fPacketHeader;␊ |
| 68 | ␊ |
| 69 | static void ListeningDCLPingPongProc(DCLCommand* pDCLCommand);␊ |
| 70 | static void TalkingDCLPingPongProc(DCLCommand* pDCLCommand);␊ |
| 71 | ␊ |
| 72 | public:␊ |
| 73 | virtual bool init(DCLCommand* toInterpret);␊ |
| 74 | virtual IOReturn allocateHW(IOFWSpeed speed, UInt32 chan);␊ |
| 75 | virtual IOReturn releaseHW();␊ |
| 76 | virtual IOReturn notify(IOFWDCLNotificationType notificationType,␊ |
| 77 | ␉DCLCommand** dclCommandList, UInt32 numDCLCommands);␊ |
| 78 | virtual void stop();␊ |
| 79 | ␊ |
| 80 | DCLCommand* getTranslatorOpcodes();␊ |
| 81 | void setHWProgram(IODCLProgram *program);␊ |
| 82 | };␊ |
| 83 | ␊ |
| 84 | /*! @class IODCLTranslateTalk␊ |
| 85 | */␊ |
| 86 | ␊ |
| 87 | class IODCLTranslateTalk : public IODCLTranslator␊ |
| 88 | {␊ |
| 89 | OSDeclareDefaultStructors(IODCLTranslateTalk)␊ |
| 90 | ␊ |
| 91 | protected:␊ |
| 92 | ␊ |
| 93 | public:␊ |
| 94 | virtual IOReturn compile(IOFWSpeed speed, UInt32 chan);␊ |
| 95 | virtual IOReturn start();␊ |
| 96 | ␊ |
| 97 | };␊ |
| 98 | ␊ |
| 99 | /*! @class IODCLTranslateListen␊ |
| 100 | */␊ |
| 101 | ␊ |
| 102 | class IODCLTranslateListen : public IODCLTranslator␊ |
| 103 | {␊ |
| 104 | OSDeclareDefaultStructors(IODCLTranslateListen)␊ |
| 105 | ␊ |
| 106 | protected:␊ |
| 107 | ␊ |
| 108 | public:␊ |
| 109 | virtual IOReturn compile(IOFWSpeed speed, UInt32 chan);␊ |
| 110 | virtual IOReturn start();␊ |
| 111 | ␊ |
| 112 | };␊ |
| 113 | #endif /* ! _IOKIT_IOFWDCLPROGRAM_H */␊ |
| 114 | ␊ |
| 115 | |
