+++ /dev/null
-/*
- * Copyright (c) 1998-2008 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
- *
- * HISTORY
- * 23 Nov 98 sdouglas created.
- */
-
-#include <IOKit/system.h>
-extern "C" {
-#include <pexpert/pexpert.h>
-}
-
-#include <libkern/c++/OSContainers.h>
-#include <IOKit/IOLib.h>
-#include <IOKit/IODeviceTreeSupport.h>
-#include <IOKit/IODeviceMemory.h>
-#include <IOKit/IOPlatformExpert.h>
-
-#include <IOKit/pci/IOPCIDevice.h>
-
-#include <IOKit/IOBufferMemoryDescriptor.h>
-
-#include <IOKit/platform/AppleMacIO.h>
-
-#include <IOKit/ppc/IODBDMA.h>
-
-#include <IOKit/assert.h>
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#define super IOService
-
-OSDefineMetaClassAndAbstractStructors(AppleMacIO, IOService);
-OSMetaClassDefineReservedUnused(AppleMacIO, 0);
-OSMetaClassDefineReservedUnused(AppleMacIO, 1);
-OSMetaClassDefineReservedUnused(AppleMacIO, 2);
-OSMetaClassDefineReservedUnused(AppleMacIO, 3);
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-bool AppleMacIO::start( IOService * provider )
-{
- IOPCIDevice *pciNub = (IOPCIDevice *)provider;
-
- if( !super::start( provider))
- return( false);
-
- // Make sure memory space is on.
- pciNub->setMemoryEnable(true);
-
- fNub = provider;
- fMemory = provider->mapDeviceMemoryWithIndex( 0 );
- if( 0 == fMemory)
- IOLog("%s: unexpected ranges\n", getName());
- else if( !selfTest())
- IOLog("Warning: AppleMacIO self test fails\n");
- PMinit(); // initialize for power management
- temporaryPowerClampOn(); // hold power on till we get children
- return( true);
-}
-
-
-IOService * AppleMacIO::createNub( IORegistryEntry * from )
-{
- IOService * nub;
-
- nub = new AppleMacIODevice;
-
- if( nub && !nub->init( from, gIODTPlane )) {
- nub->free();
- nub = 0;
- }
-
- return( nub);
-}
-
-void AppleMacIO::processNub(IOService * /*nub*/)
-{
-}
-
-const char * AppleMacIO::deleteList ( void )
-{
- return( "('sd', 'st', 'disk', 'tape', 'pram', 'rtc', 'mouse')" );
-}
-
-const char * AppleMacIO::excludeList( void )
-{
- return( 0 );
-}
-
-void AppleMacIO::publishBelow( IORegistryEntry * root )
-{
- OSCollectionIterator * kids;
- IORegistryEntry * next;
- IOService * nub;
-
- // infanticide
- kids = IODTFindMatchingEntries( root, kIODTRecursive, deleteList() );
- if( kids) {
- while( (next = (IORegistryEntry *)kids->getNextObject())) {
- next->detachAll( gIODTPlane);
- }
- kids->release();
- }
-
- // publish everything below, minus excludeList
- kids = IODTFindMatchingEntries( root, kIODTRecursive | kIODTExclusive,
- excludeList());
- if( kids) {
- while( (next = (IORegistryEntry *)kids->getNextObject())) {
-
- if( 0 == (nub = createNub( next )))
- continue;
-
- nub->attach( this );
-
- processNub(nub);
-
- nub->registerService();
- }
- kids->release();
- }
-}
-
-bool AppleMacIO::compareNubName( const IOService * nub,
- OSString * name, OSString ** matched ) const
-{
- return( IODTCompareNubName( nub, name, matched )
- || nub->IORegistryEntry::compareName( name, matched ) );
-}
-
-IOReturn AppleMacIO::getNubResources( IOService * nub )
-{
- if( nub->getDeviceMemory())
- return( kIOReturnSuccess );
-
- IODTResolveAddressing( nub, "reg", fNub->getDeviceMemoryWithIndex(0) );
-
- return( kIOReturnSuccess);
-}
-
-bool AppleMacIO::selfTest( void )
-{
- IODBDMADescriptor *dmaDescriptors;
- UInt32 dmaDescriptorsPhys;
- UInt32 i;
- UInt32 status;
- IODBDMADescriptor *dmaDesc;
- IOBufferMemoryDescriptor *buffer;
- volatile IODBDMAChannelRegisters *ioBaseDMA;
- bool ok = false;
- enum { kTestChannel = 0x8000 };
-
- ioBaseDMA = (volatile IODBDMAChannelRegisters *)
- (((UInt32)fMemory->getVirtualAddress())
- + kTestChannel );
-
- do {
- buffer = IOBufferMemoryDescriptor::withCapacity(page_size, kIODirectionOutIn, true);
- dmaDescriptors = (IODBDMADescriptor*)buffer->getBytesNoCopy();
-
- if (!dmaDescriptors)
- continue;
-
- if ( (UInt32)dmaDescriptors & (page_size - 1) ) {
- IOLog("AppleMacIO::%s() - DMA Descriptor memory not page aligned!!", __FUNCTION__);
- continue;
- }
-
- bzero( dmaDescriptors, page_size );
-
- IODBDMAReset( ioBaseDMA );
-
- dmaDesc = dmaDescriptors;
-
- IOMakeDBDMADescriptor( dmaDesc,
- kdbdmaNop,
- kdbdmaKeyStream0,
- kdbdmaIntNever,
- kdbdmaBranchNever,
- kdbdmaWaitNever,
- 0,
- 0 );
-
- dmaDesc++;
-
- dmaDescriptorsPhys = (UInt32) (buffer->getPhysicalSegment(0, NULL, 0));
-
- IOMakeDBDMADescriptorDep( dmaDesc,
- kdbdmaStoreQuad,
- kdbdmaKeySystem,
- kdbdmaIntNever,
- kdbdmaBranchNever,
- kdbdmaWaitNever,
- 4,
- dmaDescriptorsPhys+16*sizeof(IODBDMADescriptor),
- 0x12345678 );
-
- dmaDesc++;
-
- IOMakeDBDMADescriptor( dmaDesc,
- kdbdmaStop,
- kdbdmaKeyStream0,
- kdbdmaIntNever,
- kdbdmaBranchNever,
- kdbdmaWaitNever,
- 0,
- 0 );
-
-
- for ( i = 0; (!ok) && (i < 3); i++ )
- {
- dmaDescriptors[16].operation = 0;
-
- IOSetDBDMACommandPtr( ioBaseDMA, dmaDescriptorsPhys );
- IODBDMAContinue( ioBaseDMA );
-
- IODelay( 200 );
-
- status = IOGetDBDMAChannelStatus( ioBaseDMA );
-
- if ( ((status & kdbdmaActive) == 0)
- && ((status & kdbdmaDead) == 0)
- && (OSReadSwapInt32( &dmaDescriptors[16].operation, 0 ) == 0x12345678 ))
- ok = true;
- }
-
- IODBDMAReset( ioBaseDMA );
-
- } while (false);
-
- if (buffer)
- buffer->release();
-
- return ok;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#undef super
-#define super IOService
-
-OSDefineMetaClassAndStructors(AppleMacIODevice, IOService);
-OSMetaClassDefineReservedUnused(AppleMacIODevice, 0);
-OSMetaClassDefineReservedUnused(AppleMacIODevice, 1);
-OSMetaClassDefineReservedUnused(AppleMacIODevice, 2);
-OSMetaClassDefineReservedUnused(AppleMacIODevice, 3);
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-bool AppleMacIODevice::compareName( OSString * name,
- OSString ** matched ) const
-{
- return (IODTCompareNubName(this, name, matched) ||
- IORegistryEntry::compareName(name, matched));
-}
-
-IOService * AppleMacIODevice::matchLocation( IOService * /* client */ )
-{
- return this;
-}
-
-IOReturn AppleMacIODevice::getResources( void )
-{
- IOService *macIO = this;
-
- if (getDeviceMemory() != 0) return kIOReturnSuccess;
-
- while (macIO && ((macIO = macIO->getProvider()) != 0))
- if (strcmp("mac-io", macIO->getName()) == 0) break;
-
- if (macIO == 0) return kIOReturnError;
-
- IODTResolveAddressing(this, "reg", macIO->getDeviceMemoryWithIndex(0));
-
- return kIOReturnSuccess;
-}
-
projects / apple / xnu.git / blobdiff