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Annotation of XNU/iokit/Drivers/platform/drvAppleI386Generic/AppleI386PlatformExpert.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) 1998 Apple Computer, Inc.  All rights reserved. 
        !            24:  *
        !            25:  * HISTORY
        !            26:  */
        !            27:  
        !            28: #include <IOKit/system.h>
        !            29: 
        !            30: #include <architecture/i386/kernBootStruct.h>
        !            31: 
        !            32: #include <IOKit/IORegistryEntry.h>
        !            33: #include <libkern/c++/OSContainers.h>
        !            34: #include <IOKit/IOLib.h>
        !            35: #include <libkern/c++/OSUnserialize.h>
        !            36: 
        !            37: #include "AppleI386PlatformExpert.h"
        !            38: 
        !            39: #include <assert.h>
        !            40: 
        !            41: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            42: 
        !            43: #define super IOPlatformExpert
        !            44: 
        !            45: OSSymbol * gIntelPICName;
        !            46: 
        !            47: OSDefineMetaClassAndStructors(AppleI386PlatformExpert, IOPlatformExpert)
        !            48: 
        !            49: IOService * AppleI386PlatformExpert::probe(IOService *         /* provider */,
        !            50:                                            SInt32 *            score )
        !            51: {
        !            52:     *score = 2000;
        !            53: 
        !            54:     return (this);
        !            55: }
        !            56: 
        !            57: bool  AppleI386PlatformExpert::start(IOService * provider)
        !            58: {
        !            59:     gIntelPICName = (OSSymbol *) OSSymbol::withCStringNoCopy("intel-pic");
        !            60: 
        !            61: //  setupPIC(provider);
        !            62: 
        !            63:     if (!super::start(provider))
        !            64:         return false;
        !            65: 
        !            66:     return true;
        !            67: }
        !            68: 
        !            69: IOService * AppleI386PlatformExpert::createNub(OSDictionary * from)
        !            70: {
        !            71:     IOService *      nub;
        !            72:     OSData *            prop;
        !            73:     KERNBOOTSTRUCT * bootStruct;
        !            74: 
        !            75:     nub = super::createNub(from);
        !            76: 
        !            77:     if (nub)
        !            78:     {
        !            79:         if (0 == strcmp( "pci", nub->getName()))
        !            80:         {
        !            81:                bootStruct = (KERNBOOTSTRUCT *) PE_state.bootArgs;
        !            82:                prop = OSData::withBytesNoCopy(&bootStruct->pciInfo,
        !            83:                                                   sizeof(bootStruct->pciInfo));
        !            84:                assert(prop);
        !            85:                if (prop)
        !            86:                 from->setObject( "pci-bus-info", prop);
        !            87:         }
        !            88:         else if (0 != strcmp("intel-pic", nub->getName()))
        !            89:         {
        !            90:             setupPIC(nub);
        !            91:         }
        !            92:     }
        !            93: 
        !            94:     return (nub);
        !            95: }
        !            96: 
        !            97: #define kNumVectors    16
        !            98: 
        !            99: void
        !           100: AppleI386PlatformExpert::setupPIC(IOService *nub)
        !           101: {
        !           102:     int            i;
        !           103:     OSDictionary * propTable;
        !           104:     OSArray *      controller;
        !           105:     OSArray *      specifier;
        !           106:     OSData *       tmpData;
        !           107:     long           tmpLong;
        !           108: 
        !           109:     propTable = nub->getPropertyTable();
        !           110: 
        !           111:     //
        !           112:     // For the moment.. assume a classic 8259 interrupt controller
        !           113:     // with 16 interrupts.
        !           114:     //
        !           115:     // Later, this will be changed to detect a APIC and/or MP-Table
        !           116:     // and then will set the nubs appropriately.
        !           117: 
        !           118:     // Create the interrupt specifer array.
        !           119:     specifier = OSArray::withCapacity(kNumVectors);
        !           120:     assert(specifier);
        !           121:     for (i = 0; i < kNumVectors; i++) {
        !           122:         tmpLong = i;
        !           123:         tmpData = OSData::withBytes(&tmpLong, sizeof(tmpLong));
        !           124:         specifier->setObject(tmpData);
        !           125:     }
        !           126: 
        !           127:     // Create the interrupt controller array.
        !           128:     controller = OSArray::withCapacity(kNumVectors);
        !           129:     assert(controller);
        !           130:     for (i = 0; i < kNumVectors; i++)
        !           131:         controller->setObject(gIntelPICName);
        !           132: 
        !           133:     // Put the two arrays into the property table.
        !           134:     propTable->setObject(gIOInterruptControllersKey, controller);
        !           135:     propTable->setObject(gIOInterruptSpecifiersKey, specifier);
        !           136: 
        !           137:     // Release the arrays after being added to the property table.
        !           138:     specifier->release();
        !           139:     controller->release();
        !           140: }
        !           141: 
        !           142: bool
        !           143: AppleI386PlatformExpert::matchNubWithPropertyTable(IOService *    nub,
        !           144:                                                                       OSDictionary * propTable )
        !           145: {
        !           146:     OSString * nameProp;
        !           147:     OSString * match;
        !           148: 
        !           149:     if (0 == (nameProp = (OSString *) nub->getProperty(gIONameKey)))
        !           150:         return (false);
        !           151: 
        !           152:     if ( 0 == (match = (OSString *) propTable->getObject(gIONameMatchKey)))
        !           153:         return (false);
        !           154: 
        !           155:     return (match->isEqualTo( nameProp ));
        !           156: }
        !           157: 
        !           158: bool AppleI386PlatformExpert::getMachineName( char * name, int maxLength )
        !           159: {
        !           160:     strncpy( name, "x86", maxLength );
        !           161: 
        !           162:     return (true);
        !           163: }
        !           164: 
        !           165: bool AppleI386PlatformExpert::getModelName( char * name, int maxLength )
        !           166: {
        !           167:     strncpy( name, "x86", maxLength );
        !           168: 
        !           169:     return (true);
        !           170: }
        !           171: 
        !           172: 
        !           173: /* 
        !           174:  * Backdoor routines for drivers which are not yet IOKit drivers.
        !           175:  * (aka if_fxp.c ) 
        !           176:  * FIXME/REMOVEME when if_fxp.c becomes part of IOKit.
        !           177:  */
        !           178: 
        !           179: extern "C" {
        !           180: void IOKitRegisterInterruptHookStub(void * /*unused */, int vector, int isclock);
        !           181: 
        !           182: void IOKitRegisterInterruptHookStub(void * /*unused */, int /* vector */, int isclock) 
        !           183: {
        !           184:        panic("RegisterInterruptHook routine called without being setup!\n");
        !           185: }
        !           186: 
        !           187: void (*IOKitRegisterInterruptHook)(void *, int pic, int isclock) =
        !           188:        IOKitRegisterInterruptHookStub;
        !           189: }

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