bool CLASS::start( IOService * provider )
{
bool success = false;
bool superStart = false;
do {
// Start our superclass first.
if (false == super::start(provider))
break;
superStart = true;
// Save a reference to our provider.
fPCINub = OSDynamicCast(IOPCIDevice, provider);
if (!fPCINub)
break;
// Retain provider, released in free().
fPCINub->retain();
// Open our provider.
if (false == fPCINub->open(this))
break;
// Allocate mbuf cursors and other support objects.
if (false == allocateSupportObjects(provider))
break;
// Initialize our harwdare's PCI config space.
initPCIConfigSpace(fPCINub);
// Get the virtual address mapping of registers located at
// Base Address Range 1 (offset 0x14 - memory range).
fRegMap = fPCINub->mapDeviceMemoryWithRegister(
kIOPCIConfigBaseAddress1);
if (0 == fRegMap)
break;
fRegBase = (volatile void *) fRegMap->getVirtualAddress();
// Detect the hardware type.
if (probeHardware() == false)
{
ERROR_LOG("%s: probeHardware() failed\n", getName());
break;
}
// Publish our media capabilities.
phyProbeCapability();
success = true;
}
while ( false );
// Stop super on failure.
if (!success && superStart)
{
super::stop(provider);
}
// Close our provider, it will be re-opened on demand when
// our enable() is called by a client.
if (fPCINub) fPCINub->close(this);
do {
if (false == success) break;
success = false;
// Allocate and attach an IOEthernetInterface instance.
if (false == attachInterface((IONetworkInterface **)&fNetif, false))
break;
// Optional: this driver supports kernel debugging.
// Reserved a copy buffer memory used during kernel debugging,
// and resolve its physical address. Use mbuf for convenience.
fKDPMbuf = allocatePacket(kIOEthernetMaxPacketSize);
if (fKDPMbuf &&
fRxMbufCursor->getPhysicalSegments(fKDPMbuf, &fKDPMbufSeg) == 1)
{
attachDebuggerClient(&fKDPNub);
}
// Start matching clients of netif.
fNetif->registerService();
success = true;
}
while ( false );
return success;
}
bool RTL8139::start( IOService *provider )
{
OSObject *builtinProperty;
bool success = false;
ELG( IOThreadSelf(), provider, 'Strt', "RTL8139::start - this, provider." );
DEBUG_LOG( "start() ===>\n" );
do
{
if ( false == super::start( provider ) ) // Start our superclass first
break;
// Save a reference to our provider.
pciNub = OSDynamicCast( IOPCIDevice, provider );
if ( 0 == pciNub )
break;
pciNub->retain(); // Retain provider, released in free().
if ( false == pciNub->open( this ) ) // Open our provider.
break;
fBuiltin = false;
builtinProperty = provider->getProperty( "built-in" );
if ( builtinProperty )
{
fBuiltin = true;
ELG( 0, 0, 'b-in', "RTL8139::start - found built-in property." );
}
if ( false == initEventSources( provider ) )
break;
// Allocate memory for descriptors. This function will leak memory
// if called more than once. So don't do it.
if ( false == allocateDescriptorMemory() )
break;
// Get the virtual address mapping of CSR registers located at
// Base Address Range 0 (0x10).
csrMap = pciNub->mapDeviceMemoryWithRegister( kIOPCIConfigBaseAddress1 );
if ( 0 == csrMap )
break;
csrBase = (volatile void*)csrMap->getVirtualAddress();
// Init PCI config space:
if ( false == initPCIConfigSpace( pciNub ) )
break;
// Reset chip to bring it to a known state.
if ( initAdapter( kResetChip ) == false )
{
IOLog( "%s: initAdapter() failed\n", getName() );
break;
}
registerEEPROM();
// Publish our media capabilities:
phyProbeMediaCapability();
if ( false == publishMediumDictionary( mediumDict ) )
break;
success = true;
} while ( false );
// Close our provider, it will be re-opened on demand when
// our enable() is called by a client.
if ( pciNub )
pciNub->close( this );
do
{
if ( false == success )
break;
success = false;
// Allocate and attach an IOEthernetInterface instance.
if ( false == attachInterface( (IONetworkInterface**)&netif, false) )
break;
// Optional: this driver supports kernel debugging.
attachDebuggerClient( &debugger );
// Trigger matching for clients of netif.
netif->registerService();
success = true;
}
while ( false );
DEBUG_LOG( "start() <===\n" );
return success;
}/* end start */