本文整理汇总了C++中IOService::mapDeviceMemoryWithIndex方法的典型用法代码示例。如果您正苦于以下问题：C++ IOService::mapDeviceMemoryWithIndex方法的具体用法？C++ IOService::mapDeviceMemoryWithIndex怎么用？C++ IOService::mapDeviceMemoryWithIndex使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IOService的用法示例。
在下文中一共展示了IOService::mapDeviceMemoryWithIndex方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
// ----------------------------------------------------------------------------------------------------
IODBDMAChannelRegisters * PlatformInterfaceDBDMA_Mapped::GetOutputChannelRegistersVirtualAddress ( IOService * dbdmaProvider )
{
IOMemoryMap * map;
IOService * parentOfParent;
debugIOLog (3, "+ PlatformInterfaceDBDMA_Mapped::GetOutputChannelRegistersVirtualAddress ( %p )", dbdmaProvider );
FailIf ( NULL == dbdmaProvider, Exit );
debugIOLog (3, " i2s-x name is %s", dbdmaProvider->getName() );
parentOfParent = (IOService*)dbdmaProvider->getParentEntry ( gIODTPlane );
FailIf ( NULL == parentOfParent, Exit );
debugIOLog (3, " parent of %s is %s", dbdmaProvider->getName(), parentOfParent->getName() );
map = parentOfParent->mapDeviceMemoryWithIndex ( AppleDBDMAAudio::kDBDMAOutputIndex );
FailIf ( NULL == map, Exit );
mIOBaseDMAOutput = (IODBDMAChannelRegisters *) map->getVirtualAddress();
debugIOLog (3, " mIOBaseDMAOutput virtual address %p is at physical address %p", mIOBaseDMAOutput, (void*)map->getPhysicalAddress() );
if ( NULL == mIOBaseDMAOutput )
{
debugIOLog (1, " PlatformInterfaceDBDMA_Mapped::GetOutputChannelRegistersVirtualAddress IODBDMAChannelRegisters NOT IN VIRTUAL SPACE" );
}
Exit:
debugIOLog (3, "- PlatformInterfaceDBDMA_Mapped::GetOutputChannelRegistersVirtualAddress ( %p ) returns %p", dbdmaProvider, mIOBaseDMAOutput );
return mIOBaseDMAOutput;
}示例2: if
// ----------------------------------------------------------------------------------------------------
bool PlatformInterfaceDBDMA_Mapped::init ( IOService* device, AppleOnboardAudio* provider, UInt32 inDBDMADeviceIndex )
{
bool result = FALSE;
IOService* theService;
IORegistryEntry *macio;
IORegistryEntry *gpio;
IORegistryEntry *i2s;
IORegistryEntry *i2sParent;
IOMemoryMap *map;
debugIOLog ( 3, "+ PlatformInterfaceDBDMA_Mapped::init ( %p, %p, %d )", device, provider, inDBDMADeviceIndex );
FailIf ( NULL == provider, Exit );
FailIf ( NULL == device, Exit );
result = super::init ( device, provider, inDBDMADeviceIndex );
if ( result )
{
mKeyLargoService = IOService::waitForService ( IOService::serviceMatching ( "KeyLargo" ) );
debugIOLog ( 3, " sound's name is %s", ( (IORegistryEntry*)device)->getName () );
i2s = ( ( IORegistryEntry*)device)->getParentEntry ( gIODTPlane );
FailWithAction ( 0 == i2s, result = false, Exit );
debugIOLog ( 3, " parent name is '%s'", i2s->getName () );
if ( 0 == strcmp ( "i2s-a", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell0;
}
else if ( 0 == strcmp ( "i2s-b", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell1;
}
else if ( 0 == strcmp ( "i2s-c", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell2;
}
else if ( 0 == strcmp ( "i2s-d", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell3;
}
else if ( 0 == strcmp ( "i2s-e", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell4;
}
else if ( 0 == strcmp ( "i2s-f", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell5;
}
else if ( 0 == strcmp ( "i2s-g", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell6;
}
else if ( 0 == strcmp ( "i2s-h", i2s->getName () ) )
{
mI2SInterfaceNumber = kUseI2SCell7;
}
debugIOLog ( 5, " mI2SInterfaceNumber = %d", mI2SInterfaceNumber );
i2sParent = i2s->getParentEntry ( gIODTPlane );
FailWithAction ( 0 == i2sParent, result = false, Exit );
debugIOLog ( 3, " parent name of '%s' is %s", i2s->getName (), i2sParent->getName () );
macio = i2sParent->getParentEntry ( gIODTPlane );
FailWithAction ( 0 == macio, result = false, Exit );
debugIOLog ( 3, " macio name is %s", macio->getName () );
gpio = macio->childFromPath ( kGPIODTEntry, gIODTPlane);
FailWithAction ( !gpio, result = false, Exit);
debugIOLog ( 3, " gpio name is %s", gpio->getName () );
theService = ( OSDynamicCast ( IOService, i2s ) );
FailWithAction ( !theService, result = false, Exit );
map = theService->mapDeviceMemoryWithIndex ( inDBDMADeviceIndex );
FailWithAction ( 0 == map, result = false, Exit );
// cache the config space
mSoundConfigSpace = (UInt8 *)map->getPhysicalAddress();
// sets the clock base address figuring out which I2S cell we're on
if ((((UInt32)mSoundConfigSpace ^ kI2S0BaseOffset) & 0x0001FFFF) == 0)
{
// [3060321] ioBaseAddress is required by this object in order to enable the target
// I2S I/O Module for which this object is to service. The I2S I/O Module
// enable occurs through the configuration registers which reside in the
// first block of ioBase. rbm 2 Oct 2002
mIOBaseAddress = (void *)((UInt32)mSoundConfigSpace - kI2S0BaseOffset);
mIOBaseAddressMemory = IODeviceMemory::withRange ((IOPhysicalAddress)((UInt8 *)mSoundConfigSpace - kI2S0BaseOffset), 256);
mI2SInterfaceNumber = kUseI2SCell0;
}
else if ((((UInt32)mSoundConfigSpace ^ kI2S1BaseOffset) & 0x0001FFFF) == 0)
{
// [3060321] ioBaseAddress is required by this object in order to enable the target
// I2S I/O Module for which this object is to service. The I2S I/O Module
// enable occurs through the configuration registers which reside in the
// first block of ioBase. rbm 2 Oct 2002
mIOBaseAddress = (void *)((UInt32)mSoundConfigSpace - kI2S1BaseOffset);
mIOBaseAddressMemory = IODeviceMemory::withRange ((IOPhysicalAddress)((UInt8 *)mSoundConfigSpace - kI2S1BaseOffset), 256);
//.........这里部分代码省略.........