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Annotation of XNU/iokit/Drivers/platform/drvApplePowerExpressPE/PowerExpress.cpp, revision 1.1

1.1     ! root        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) 1999 Apple Computer, Inc.  All rights reserved.
        !            24:  *
        !            25:  *  DRI: Josh de Cesare
        !            26:  *
        !            27:  */
        !            28: 
        !            29: #include <IOKit/IODeviceTreeSupport.h>
        !            30: 
        !            31: #include "PowerExpress.h"
        !            32: 
        !            33: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            34: 
        !            35: #define super ApplePlatformExpert
        !            36: 
        !            37: OSDefineMetaClassAndStructors(PowerExpressPE, ApplePlatformExpert);
        !            38: 
        !            39: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            40: 
        !            41: bool PowerExpressPE::start(IOService *provider)
        !            42: {
        !            43:   OSData *tmpData;
        !            44:   
        !            45:   setFamily(3); // PowerExpress...
        !            46:   
        !            47:   tmpData = OSDynamicCast(OSData, getProperty("senses"));
        !            48:   if (tmpData) senseArray = (long *)tmpData->getBytesNoCopy();
        !            49:   
        !            50:   return super::start(provider);
        !            51: }
        !            52: 
        !            53: bool PowerExpressPE::platformAdjustService(IOService *service)
        !            54: {
        !            55:   long     cnt, numInterrupts, sourceNumbers[2];
        !            56:   OSData   *tmpData;
        !            57:   OSArray  *controllers, *specifiers;
        !            58:   OSSymbol *controller;
        !            59:   
        !            60:   // Fix up the interrupt data.
        !            61:   controllers = OSDynamicCast(OSArray, service->getProperty(gIOInterruptControllersKey));
        !            62:   specifiers = OSDynamicCast(OSArray, service->getProperty(gIOInterruptSpecifiersKey));
        !            63:   if (controllers && specifiers) {
        !            64:     numInterrupts = specifiers->getCount();
        !            65:     for (cnt = 0; cnt < numInterrupts; cnt++) {
        !            66:       // Only change interrupts for MPIC.
        !            67:       controller = OSDynamicCast(OSSymbol, controllers->getObject(cnt));
        !            68:       if (controller == gIODTDefaultInterruptController) {
        !            69:        tmpData = OSDynamicCast(OSData, specifiers->getObject(cnt));
        !            70:        if (tmpData && (tmpData->getLength() == 4)) {
        !            71:          sourceNumbers[0] = *(long *)tmpData->getBytesNoCopy();
        !            72:          sourceNumbers[1] = senseArray[sourceNumbers[0]];
        !            73:          tmpData = OSData::withBytes(sourceNumbers, 2 * sizeof(long));
        !            74:          if (tmpData) {
        !            75:            specifiers->setObject(cnt, tmpData);
        !            76:            tmpData->release();
        !            77:          }
        !            78:        }
        !            79:       }
        !            80:     }
        !            81:   }
        !            82:   
        !            83:   return true;
        !            84: }

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