////////////////////////////////////////////////////////////
/// Enumerate all attached joystick/gamepad controllers
////////////////////////////////////////////////////////////
int JoystickSupport::EnumerateDevices(std::vector<JoystickDevice> &devices)
{
IOReturn ioRes = IOMasterPort(bootstrap_port, &myMasterPort);
if (ioRes != kIOReturnSuccess)
return 0;
CFMutableDictionaryRef hidMatchDictionary = 0;
io_iterator_t hidObjectIterator = 0;
hidMatchDictionary = IOServiceMatching(kIOHIDDeviceKey);
ioRes = IOServiceGetMatchingServices( myMasterPort, hidMatchDictionary, &hidObjectIterator );
if ((ioRes != kIOReturnSuccess) || (hidObjectIterator == nil))
{
return 0;
}
io_object_t hidDevice;
kern_return_t result;
CFMutableDictionaryRef properties;
CFTypeRef object;
long usagePage, usage, locationID;
while ((hidDevice = IOIteratorNext(hidObjectIterator)))
{
result = IORegistryEntryCreateCFProperties(hidDevice, &properties, kCFAllocatorDefault, kNilOptions);
if ((result != KERN_SUCCESS) || (properties == nil))
continue;
object = CFDictionaryGetValue(properties, CFSTR(kIOHIDPrimaryUsagePageKey));
if (object)
{
if (!CFNumberGetValue((CFNumberRef)object, kCFNumberLongType, &usagePage))
continue;
object = CFDictionaryGetValue(properties, CFSTR(kIOHIDPrimaryUsageKey));
if (object)
{
if(!CFNumberGetValue((CFNumberRef)object, kCFNumberLongType, &usage))
continue;
}
}
object = CFDictionaryGetValue(properties, CFSTR(kIOHIDLocationIDKey));
if (!object)
locationID = 0;
else
{
if(!CFNumberGetValue((CFNumberRef)object, kCFNumberLongType, &locationID))
locationID = 0;
}
if (usagePage == kHIDPage_GenericDesktop)
{
switch(usage)
{
case kHIDUsage_GD_Joystick :
case kHIDUsage_GD_GamePad :
{
JoystickDevice Joystick;
EnumerateElements(properties, &Joystick);
if (GetDeviceInterface(&hidDevice, Joystick) == kIOReturnSuccess)
{
devices.push_back(Joystick);
std::cout << "Device with " << Joystick.axis.size() << " axes and " << Joystick.buttons.size() << " buttons was found." << std::endl;
}
}
break;
}
}
CFRelease(properties);
ioRes = IOObjectRelease(hidDevice);
if(ioRes != kIOReturnSuccess)
std::cout << "Error releasing device" << std::endl;
}
IOObjectRelease(hidObjectIterator);
return 1;
}
int
main ( int argc, const char * argv[] )
{
//
// allocate our DMA buffers using vm_allocate
//
vm_address_t buffer = nil ;
::vm_allocate( mach_task_self(), & buffer, kBufferSize, true ) ;
assert( buffer ) ;
//
// split up vm_allocated buffer into buffers we will use
// in our DMA program
//
UInt8* buffers[3] = { (UInt8*)buffer, (UInt8*)buffer + 1024, (UInt8*)buffer + 4096 } ;
//
// put test data into our DMA program buffers
//
snprintf( reinterpret_cast<char*>(buffers[0]), 1024, "sample text in a buffer" ) ;
snprintf( reinterpret_cast<char*>(buffers[1]), 3048, "<this space intentionally left blank>" ) ;
snprintf( reinterpret_cast<char*>(buffers[2]), 1024, "next sample text is here" ) ;
//
// run test
//
IOReturn error = kIOReturnSuccess ;
cout << i++ << "\n### SETTING UP\n" ;
for( int index=0; index < 3; ++index )
cout << i << "buffers[" << index << "] " << (char*)(buffers[index]) << endl ;
cout << i++ << "Getting device interface...\n" ;
IOFireWireLibNubRef localNode = 0 ;
IOCFPlugInInterfaceRef cfPlugInInterface ;
error = GetDeviceInterface( & cfPlugInInterface, & localNode ) ;
cout << i-- << "..." << _success << endl ;
if ( !error )
{
cout << i << "Opening...\n" ;
error = (**localNode).Open( localNode ) ;
}
// if (!error)
// {
// error = (**localNode).AddCallbackDispatcherToRunLoop( localNode, ::CFRunLoopGetCurrent() ) ;
// if (!error)
// (**localNode).TurnOnNotification( localNode ) ;
// }
if ( !error )
{
cout << i++ << "Adding isoch dispatcher to run loop...\n" ;
error = (**localNode).AddIsochCallbackDispatcherToRunLoop( localNode, CFRunLoopGetCurrent() ) ;
}
IOFireWireLibDCLCommandPoolRef commandPool = 0 ;
IOFireWireLibRemoteIsochPortRef remoteIsochPort = 0 ;
IOFireWireLibLocalIsochPortRef localIsochPort = 0 ;
IOFireWireLibIsochChannelRef isochChannel = 0 ;
if ( !error )
{
cout << i++ << "Creating DCL command pool...\n" ;
error = CreateDCLCommandPool( localNode, & commandPool ) ;
}
if ( !error )
{
cout << i++ << "Creating remote isochronous port...\n" ;
error = CreateRemoteIsochPort( localNode, & remoteIsochPort ) ;
cout << i-- << "..." << _success << endl ;
}
if ( !error )
{
cout << i << "Creating local isoch port...\n" ;
error = CreateLocalIsochPort( localNode, buffers, commandPool, & localIsochPort ) ;
cout << i-- << "..." << _success << endl ;
}
if ( !error )
{
cout << i++ << "Creating isoch channel...\n" ;
error = CreateIsochChannel( localNode, & isochChannel ) ;
cout << i-- << "..." << _success << endl ;
}
// remote is listener
if ( !error )
{
cout << i++ << "Adding listener to isoch channel...\n" ;
error = (**isochChannel).AddListener( isochChannel, (IOFireWireLibIsochPortRef) remoteIsochPort ) ;
cout << i-- << "..." << _success << endl ;
}
// local is talker
if ( !error )
{
cout << i++ << "Setting talker on isoch channel...\n" ;
error = (**isochChannel).SetTalker( isochChannel, (IOFireWireLibIsochPortRef) localIsochPort ) ;
cout << i-- << "..." << _success << endl ;
}
if ( !error )
{
cout << i++ << "Allocating channel...\n" ;
error = (**isochChannel).AllocateChannel( isochChannel ) ;
cout << i-- << "..." << _success << endl ;
}
i-- ; // unindent
// run for approx. 15 seconds
cout << i++ << "\n### RUNNING\n" ;
if ( !error )
{
if ( !error )
{
cout << i++ << "Starting channel...\n" ;
error = (**isochChannel).Start( isochChannel ) ;
cout << i-- << "..." << _success << endl ;
}
cout << i << "\nRunning...\n" ;
SInt16 runLoopResult ;
while ( kCFRunLoopRunHandledSource == ( runLoopResult = CFRunLoopRunInMode( kCFRunLoopDefaultMode, 30, false ) ) )
{
}
error = (**isochChannel).Stop( isochChannel ) ;
cout << i-- << "done!\n" ;
// clean up
cout << i++ << "\n### CLEAN UP ###\n\n" ;
// release all interfaces
if ( isochChannel )
{
cout << i++ << "releasing isoch channel.\n" ;
if ( error != kIOReturnSuccess )
cout << i << _file << "error " << error << " stopping channel.\n" ;
error = (**isochChannel).ReleaseChannel( isochChannel ) ;
if ( error != kIOReturnSuccess )
cout << i << _file << "error " << error << " from ReleaseChannel().\n" ;
(**isochChannel).Release( isochChannel ) ;
i-- ;
}
if ( localIsochPort )
{
cout << i << "releasing local port.\n" ;
(**localIsochPort).Release( localIsochPort ) ;
}
if ( remoteIsochPort )
{
cout << i << "releasing remote port.\n" ;
(**remoteIsochPort).Release( remoteIsochPort ) ;
}
}
if ( localNode )
{
cout << i << "releasing local node interface.\n" ;
(**localNode).Close( localNode ) ;
(**localNode).Release( localNode ) ;
}
//
// release the original CFPlugInInterface
//
if ( cfPlugInInterface )
{
cout << i << "releasing CFPlugInInterface.\n" ;
IODestroyPlugInInterface( cfPlugInInterface ) ;
}
//
// deallocate our DMA buffers
//
if (buffer)
{
::vm_deallocate( mach_task_self(), buffer, kBufferSize ) ;
}
cout << i << "### DONE\n" ;
return (error == kIOReturnSuccess) ? EXIT_SUCCESS : EXIT_FAILURE ;
}
