OSSet * AppleIntelPIIXATARoot::createATAChannelNubs( void )
{
OSSet * nubSet;
OSDictionary * channelInfo;
IORegistryEntry * dtEntry;
UInt32 priChannelMode;
UInt32 secChannelMode;
UInt8 mapValue = 0;
do {
nubSet = OSSet::withCapacity(2);
if ( nubSet == 0 )
break;
if ( _provider->open( this ) != true )
break;
priChannelMode = kChannelModePATA;
secChannelMode = kChannelModePATA;
// Determine SATA channel mode based on Port Mapping Register.
if ( getProperty( kSerialATAKey ) == kOSBooleanTrue )
{
OSString * hwName;
hwName = OSDynamicCast(OSString, getProperty(kControllerNameKey));
mapValue = _provider->configRead8(kPIIX_PCI_MAP);
setProperty( kPortMappingKey, mapValue, 8 );
priChannelMode = kChannelModeDisabled;
secChannelMode = kChannelModeDisabled;
if (hwName)
{
if (hwName->isEqualTo("ICH7-M SATA"))
{
mapValue &= 0x3;
priChannelMode = gICH7MChannelModeMap[mapValue][0];
secChannelMode = gICH7MChannelModeMap[mapValue][1];
}
else if (hwName->isEqualTo("ICH6 SATA") || hwName->isEqualTo("ESB2 SATA"))
{
mapValue &= 0x3;
priChannelMode = gICH6ChannelModeMap[mapValue][0];
secChannelMode = gICH6ChannelModeMap[mapValue][1];
}
else if (hwName->isEqualTo("ICH6-M SATA"))
{
mapValue &= 0x3;
priChannelMode = gICH6MChannelModeMap[mapValue][0];
secChannelMode = gICH6MChannelModeMap[mapValue][1];
}
else if (hwName->isEqualTo("ICH5 SATA"))
{
mapValue &= 0x7;
priChannelMode = gICH5ChannelModeMap[mapValue][0];
secChannelMode = gICH5ChannelModeMap[mapValue][1];
}
else /* if (hwName->isEqualTo("ICH7 SATA")) */
{
mapValue &= 0x3;
priChannelMode = gICH7ChannelModeMap[mapValue][0];
secChannelMode = gICH7ChannelModeMap[mapValue][1];
}
}
}
if ( priChannelMode == kChannelModeDisabled &&
secChannelMode == kChannelModeDisabled )
{
IOLog("%s: bad value (%x) in Port Mapping register",
getName(), mapValue);
_provider->close( this );
break;
}
for ( UInt32 channelID = 0; channelID < 2; channelID++ )
{
UInt32 channelMode = (channelID ? secChannelMode : priChannelMode);
// Create a dictionary for the channel info. Use native mode
// settings if possible, else default to legacy mode.
channelInfo = createNativeModeChannelInfo( channelID, channelMode );
if (channelInfo == 0)
channelInfo = createLegacyModeChannelInfo( channelID, channelMode );
if (channelInfo == 0)
continue;
// Create a nub for each ATA channel.
AppleIntelPIIXATAChannel * nub = new AppleIntelPIIXATAChannel;
if ( nub )
{
dtEntry = getDTChannelEntry( channelID );
if ( nub->init( this, channelInfo, dtEntry ) &&
nub->attach( this ) )
{
nubSet->setObject( nub );
}
if ( dtEntry )
{
dtEntry->release();
}
else
{
// Platform did not create a device tree entry for
// this ATA channel. Do it here.
char channelName[5] = {'C','H','N','_','\0'};
channelName[3] = '0' + channelID;
nub->setName( channelName );
if ( _provider->inPlane(gIODTPlane) )
{
nub->attachToParent( _provider, gIODTPlane );
}
}
nub->release();
}
channelInfo->release();
}
_provider->close( this );
}
while ( false );
// Release and invalidate an empty set.
if ( nubSet && (nubSet->getCount() == 0) )
{
nubSet->release();
nubSet = 0;
}
return nubSet;
}
OSSet * AppleNForceATARoot::createATAChannels( void )
{
OSSet * nubSet;
OSDictionary * channelInfo;
IORegistryEntry * dtEntry;
char* debugInfo;
do {
nubSet = OSSet::withCapacity(2);
if (nubSet == 0)
break;
if (fProvider->open(this) != true)
break;
for ( UInt32 channelID = 0; channelID < 2; channelID++ )
{
// Create a dictionary for the channel info. Use native mode
// settings if possible, else default to legacy mode.
debugInfo = "native";
channelInfo = createNativeModeChannelInfo( channelID );
if (channelInfo == 0)
{
debugInfo = "legacy";
channelInfo = createLegacyModeChannelInfo( channelID );
}
if (channelInfo == 0)
continue;
DEBUG_LOG( "%s::%s() [this=%p] created channel %d in %s mode.\n",
getName(), __FUNCTION__, this, (int)channelID, debugInfo );
// Create a nub for each ATA channel.
AppleNForceATAChannel * nub = new AppleNForceATAChannel;
if ( nub )
{
dtEntry = getDTChannelEntry( channelID );
// Invoke special init method in channel nub.
if (nub->init( this, channelInfo, dtEntry ) &&
nub->attach( this ))
{
nubSet->setObject( nub );
}
if ( dtEntry )
{
dtEntry->release();
}
else
{
// Platform did not create a device tree entry for
// this ATA channel. Do it here.
char channelName[5] = {'C','H','N','_','\0'};
channelName[3] = '0' + channelID;
nub->setName( channelName );
if (fProvider->inPlane(gIODTPlane))
{
nub->attachToParent( fProvider, gIODTPlane );
}
}
nub->release();
}
channelInfo->release();
}
fProvider->close( this );
}
while ( false );
// Release and invalidate an empty set.
if (nubSet && (nubSet->getCount() == 0))
{
nubSet->release();
nubSet = 0;
}
return nubSet;
}