projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
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 | * 12 Nov 1998 suurballe Created. | |
| 24 | */ | |
| 25 | ||
| 26 | #include <IOKit/adb/IOADBController.h> | |
| 27 | #include <IOKit/IODeviceTreeSupport.h> | |
| 28 | #include <IOKit/IOPlatformExpert.h> | |
| 29 | #include <IOKit/IOSyncer.h> | |
| 30 | ||
| 31 | class IOPMUADBController : public IOADBController | |
| 32 | { | |
| 33 | OSDeclareDefaultStructors(IOPMUADBController) | |
| 34 | ||
| 35 | private: | |
| 36 | enum { | |
| 37 | kPMUNoError = 0, | |
| 38 | kPMUInitError = 1, // PMU failed to initialize | |
| 39 | kPMUParameterError = 2, // Bad parameters | |
| 40 | kPMUNotSupported = 3, // PMU don't do that (Cuda does, though) | |
| 41 | kPMUIOError = 4 // Nonspecific I/O failure | |
| 42 | }; | |
| 43 | ||
| 44 | enum { | |
| 45 | kPMUpMgrADB = 0x20, // send ADB command | |
| 46 | kPMUpMgrADBoff = 0x21, // turn ADB auto-poll off | |
| 47 | kPMUreadADB = 0x28, // Apple Desktop Bus | |
| 48 | kPMUpMgrADBInt = 0x2F, // get ADB interrupt data (Portable only) | |
| 49 | }; | |
| 50 | ||
| 51 | enum { | |
| 52 | kPMUADBAddressField = 4 | |
| 53 | }; | |
| 54 | ||
| 55 | enum { | |
| 56 | kPMUResetADBBus = 0x00, | |
| 57 | kPMUFlushADB = 0x01, | |
| 58 | kPMUWriteADB = 0x08, | |
| 59 | kPMUReadADB = 0x0C, | |
| 60 | kPMURWMaskADB = 0x0C | |
| 61 | }; | |
| 62 | ||
| 63 | enum { // when kPMUADBint is set | |
| 64 | kPMUADBint = 0x10, | |
| 65 | kPMUwaitinglsc = 0x01, // waiting to listen to charger | |
| 66 | kPMUautoSRQpolling = 0x02, // auto/SRQ polling is enabled | |
| 67 | kPMUautopoll = 0x04 // input is autopoll data | |
| 68 | }; | |
| 69 | ||
| 70 | // We need this to callPlatformFunction when sending to sendMiscCommand | |
| 71 | typedef struct SendMiscCommandParameterBlock { | |
| 72 | int command; | |
| 73 | IOByteCount sLength; | |
| 74 | UInt8 *sBuffer; | |
| 75 | IOByteCount *rLength; | |
| 76 | UInt8 *rBuffer; | |
| 77 | } SendMiscCommandParameterBlock; | |
| 78 | typedef SendMiscCommandParameterBlock *SendMiscCommandParameterBlockPtr; | |
| 79 | ||
| 80 | // Local data: | |
| 81 | IOService *PMUdriver; | |
| 82 | UInt32 pollList; // ADB autopoll device bitmap | |
| 83 | bool autopollOn; // TRUE: PMU is autopolling | |
| 84 | ||
| 85 | UInt32 dataLen; // data len as result of an interrupt | |
| 86 | UInt8 dataBuffer[256]; // data as result of an interrupt | |
| 87 | IOSyncer *waitingForData; // syncronizer for reads and writes. | |
| 88 | ||
| 89 | // Local interrupt handlers: | |
| 90 | static void handleADBInterrupt(IOService *client, UInt8 matchingMask, UInt32 length, UInt8 *buffer); | |
| 91 | ||
| 92 | // This lock protects the access to the common varialbes of this object: | |
| 93 | IOLock *requestMutexLock; | |
| 94 | ||
| 95 | // A simpler way to interface with the pmu SendMiscCommand | |
| 96 | IOReturn localSendMiscCommand(int command, IOByteCount sLength, UInt8 *sBuffer, IOByteCount *rLength, UInt8 *rBuffer); | |
| 97 | ||
| 98 | public: | |
| 99 | IOService *probe( IOService * nub, SInt32 * score ); | |
| 100 | bool start ( IOService * ); | |
| 101 | void free (); | |
| 102 | IOReturn setAutoPollPeriod ( int microseconds ); | |
| 103 | IOReturn getAutoPollPeriod ( int * microseconds ); | |
| 104 | IOReturn setAutoPollList ( UInt16 activeAddressMask ); | |
| 105 | IOReturn getAutoPollList ( UInt16 * activeAddressMask ); | |
| 106 | IOReturn setAutoPollEnable ( bool enable ); | |
| 107 | IOReturn resetBus ( void ); | |
| 108 | IOReturn flushDevice ( IOADBAddress address ); | |
| 109 | IOReturn readFromDevice ( IOADBAddress address, IOADBRegister adbRegister, UInt8 * data, IOByteCount * length ); | |
| 110 | IOReturn writeToDevice ( IOADBAddress address, IOADBRegister adbRegister, UInt8 * data, IOByteCount * length ); | |
| 111 | }; |