iokit/Drivers/hidsystem/drvAppleADBDevices/AppleADBDisplay.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) 1997-1998 Apple Computer, Inc.
  24  *
  25  *
  26  * HISTORY
  27  *
  28  * sdouglas  22 Oct 97 - first checked in.
  29  * sdouglas  23 Jul 98 - start IOKit
  30  * suurballe 17 Nov 98 - ported to C++
  31  */
  32
  33 #include <IOKit/adb/IOADBDevice.h>
  34 #include <IOKit/graphics/IODisplay.h>
  35
  36
  37 #define kOrgDisplayAddr                 0x7     // Original display ADB address
  38
  39 #define kTelecasterADBHandlerID         0x03
  40 #define kSmartDisplayADBHandlerID       0xc0
  41
  42 #define kADBReg0                        0x0     // Device register zero
  43 #define kADBReg1                        0x1     // Device register one
  44 #define kADBReg2                        0x2     // Device register two
  45 #define kADBReg3                        0x3     // Device register three
  46
  47 #define kReg2DataRdy                    0xFD    // data (to be read) ready
  48 #define kReg2DataAck                    0xFE    // data (just written) OK
  49 #define kWiggleLADAddr                  0x04    // 0x0f on Telecaster & Sousa?
  50
  51 #if 0
  52
  53 #define kNoDevice               -1
  54 #define kTelecaster             0
  55 #define kSousaSoundUnit         1
  56 #define kHammerhead             2
  57 #define kOrca                   3
  58 #define kWhaler                 4
  59 #define kWarriorEZ              5
  60 #define kManta                  6
  61 #define kLastDeviceType         kManta
  62
  63 #define kDisplayLocalRemoteLADAddr      0x02    // lad address used in SetDisplayRemoteMode
  64 #define kAudioKeypadEnableLADAddr       0x7D
  65
  66 #define kUnknown        -1
  67 #define kLocal          0
  68 #define kRemote         1
  69
  70 #endif
  71
  72 class AppleADBDisplay: public IODisplay
  73 {
  74     OSDeclareDefaultStructors(AppleADBDisplay)
  75
  76 private:
  77
  78     IOADBDevice *       adbDevice;
  79     volatile UInt8      waitAckValue;
  80     UInt8               wiggleLADAddr;
  81     SInt16              avDisplayID;
  82     int                 numModes;
  83     UInt32       *      modeList;
  84
  85     virtual IOReturn findADBDisplayInfoForType( UInt16 deviceType );
  86     virtual IOReturn getConnectFlagsForDisplayMode(
  87                         IODisplayModeID mode, UInt32 * flags );
  88     virtual IOReturn doConnect( void );
  89     virtual IOReturn writeWithAcknowledge( UInt8 regNum, UInt16 data,
  90                                 UInt8 ackValue );
  91     virtual IOReturn setLogicalRegister( UInt16 address, UInt16 data );
  92     virtual IOReturn getLogicalRegister( UInt16 address, UInt16 * data );
  93     virtual void setWiggle( bool active );
  94     virtual bool tryAttach( IODisplayConnect * connect );
  95
  96 public:
  97
  98     virtual bool start( IOService * nub );
  99     virtual IOService * probe( IOService * nub, SInt32 * score );
 100
 101     virtual void packet( UInt8 adbCommand,
 102                                 IOByteCount length, UInt8 * data );
 103
 104 };