iokit/Drivers/platform/drvApplePS2Controller/ApplePS2KeyboardDevice.cpp

   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 #include <IOKit/assert.h>
  24 #include <IOKit/ps2/ApplePS2KeyboardDevice.h>
  25 #include "ApplePS2Controller.h"
  26
  27 // =============================================================================
  28 // ApplePS2KeyboardDevice Class Implementation
  29 //
  30
  31 #define super IOService
  32 OSDefineMetaClassAndStructors(ApplePS2KeyboardDevice, IOService);
  33
  34 bool ApplePS2KeyboardDevice::attach( IOService * provider )
  35 {
  36   if( !super::attach(provider) )  return false;
  37
  38   assert(_controller == 0);
  39   _controller = (ApplePS2Controller *)provider;
  40   _controller->retain();
  41
  42   return true;
  43 }
  44
  45 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  46
  47 void ApplePS2KeyboardDevice::detach( IOService * provider )
  48 {
  49   assert(_controller == provider);
  50   _controller->release();
  51   _controller = 0;
  52
  53   super::detach(provider);
  54 }
  55
  56 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  57
  58 void ApplePS2KeyboardDevice::installInterruptAction(OSObject *         target,
  59                                                     PS2InterruptAction action)
  60 {
  61   _controller->installInterruptAction(kDT_Keyboard, target, action);
  62 }
  63
  64 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  65
  66 void ApplePS2KeyboardDevice::uninstallInterruptAction()
  67 {
  68   _controller->uninstallInterruptAction(kDT_Keyboard);
  69 }
  70
  71 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  72
  73 PS2Request * ApplePS2KeyboardDevice::allocateRequest()
  74 {
  75   return _controller->allocateRequest();
  76 }
  77
  78 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  79
  80 void ApplePS2KeyboardDevice::freeRequest(PS2Request * request)
  81 {
  82   _controller->freeRequest(request);
  83 }
  84
  85 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  86
  87 bool ApplePS2KeyboardDevice::submitRequest(PS2Request * request)
  88 {
  89   return _controller->submitRequest(request);
  90 }
  91
  92 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  93
  94 void ApplePS2KeyboardDevice::submitRequestAndBlock(PS2Request * request)
  95 {
  96   _controller->submitRequestAndBlock(request);
  97 }