--- /dev/null
+//
+// AppleRemote.h
+// AppleRemote
+//
+// Created by Martin Kahr on 11.03.06.
+// Copyright 2006 martinkahr.com. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+#import <mach/mach.h>
+#import <mach/mach_error.h>
+#import <IOKit/IOKitLib.h>
+#import <IOKit/IOCFPlugIn.h>
+#import <IOKit/hid/IOHIDLib.h>
+#import <IOKit/hid/IOHIDKeys.h>
+
+enum AppleRemoteEventIdentifier
+{
+ kRemoteButtonVolume_Plus=0,
+ kRemoteButtonVolume_Minus,
+ kRemoteButtonMenu,
+ kRemoteButtonPlay,
+ kRemoteButtonRight,
+ kRemoteButtonLeft,
+ kRemoteButtonRight_Hold,
+ kRemoteButtonLeft_Hold,
+ kRemoteButtonMenu_Hold,
+ kRemoteButtonPlay_Sleep,
+ kRemoteControl_Switched
+};
+typedef enum AppleRemoteEventIdentifier AppleRemoteEventIdentifier;
+
+/* Encapsulates usage of the apple remote control
+ This class is implemented as a singleton as there is exactly one remote per machine (until now)
+ The class is not thread safe
+*/
+@interface AppleRemote : NSObject {
+ IOHIDDeviceInterface** hidDeviceInterface;
+ IOHIDQueueInterface** queue;
+ NSMutableArray* allCookies;
+ NSMutableDictionary* cookieToButtonMapping;
+
+ BOOL openInExclusiveMode;
+
+ int remoteId;
+
+ IBOutlet id delegate;
+}
+
+- (void) setRemoteId: (int) aValue;
+- (int) remoteId;
+
+- (BOOL) isRemoteAvailable;
+
+- (BOOL) isListeningToRemote;
+- (void) setListeningToRemote: (BOOL) value;
+
+- (BOOL) isOpenInExclusiveMode;
+- (void) setOpenInExclusiveMode: (BOOL) value;
+
+- (void) setDelegate: (id) delegate;
+- (id) delegate;
+
+- (IBAction) startListening: (id) sender;
+- (IBAction) stopListening: (id) sender;
+@end
+
+@interface AppleRemote (Singleton)
+
++ (AppleRemote*) sharedRemote;
+
+@end
+
+/* Method definitions for the delegate of the AppleRemote class
+*/
+@interface NSObject(NSAppleRemoteDelegate)
+
+- (void) appleRemoteButton: (AppleRemoteEventIdentifier)buttonIdentifier pressedDown: (BOOL) pressedDown;
+
+@end
+
+@interface AppleRemote (PrivateMethods)
+- (NSDictionary*) cookieToButtonMapping;
+- (IOHIDQueueInterface**) queue;
+- (IOHIDDeviceInterface**) hidDeviceInterface;
+- (void) handleEventWithCookieString: (NSString*) cookieString sumOfValues: (SInt32) sumOfValues;
+@end
+
+@interface AppleRemote (IOKitMethods)
+- (io_object_t) findAppleRemoteDevice;
+- (IOHIDDeviceInterface**) createInterfaceForDevice: (io_object_t) hidDevice;
+- (BOOL) initializeCookies;
+- (BOOL) openDevice;
+@end
\ No newline at end of file
--- /dev/null
+//
+// AppleRemote.m
+// AppleRemote
+//
+// Created by Martin Kahr on 11.03.06.
+// Copyright 2006 martinkahr.com. All rights reserved.
+//
+
+#import "AppleRemote.h"
+
+const char* AppleRemoteDeviceName = "AppleIRController";
+const int REMOTE_SWITCH_COOKIE=19;
+
+@implementation AppleRemote
+
+#pragma public interface
+
+- (id) init {
+ if ( self = [super init] ) {
+ openInExclusiveMode = YES;
+ queue = NULL;
+ hidDeviceInterface = NULL;
+ cookieToButtonMapping = [[NSMutableDictionary alloc] init];
+
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonVolume_Plus] forKey:@"14_12_11_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonVolume_Minus] forKey:@"14_13_11_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonMenu] forKey:@"14_7_6_5_14_7_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonPlay] forKey:@"14_8_6_5_14_8_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonRight] forKey:@"14_9_6_5_14_9_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonLeft] forKey:@"14_10_6_5_14_10_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonRight_Hold] forKey:@"14_6_5_4_2_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonLeft_Hold] forKey:@"14_6_5_3_2_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonMenu_Hold] forKey:@"14_6_5_14_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteButtonPlay_Sleep] forKey:@"18_14_6_5_18_14_6_5_"];
+ [cookieToButtonMapping setObject:[NSNumber numberWithInt:kRemoteControl_Switched] forKey:@"19_"];
+ }
+
+ return self;
+}
+
+- (void) dealloc {
+ [self stopListening:self];
+ [cookieToButtonMapping release];
+ [super dealloc];
+}
+
+- (void) setRemoteId: (int) value {
+ remoteId = value;
+}
+- (int) remoteId {
+ return remoteId;
+}
+
+- (BOOL) isRemoteAvailable {
+ io_object_t hidDevice = [self findAppleRemoteDevice];
+ if (hidDevice != 0) {
+ IOObjectRelease(hidDevice);
+ return YES;
+ } else {
+ return NO;
+ }
+}
+
+- (BOOL) isListeningToRemote {
+ return (hidDeviceInterface != NULL && allCookies != NULL && queue != NULL);
+}
+
+- (void) setListeningToRemote: (BOOL) value {
+ if (value == NO) {
+ [self stopListening:self];
+ } else {
+ [self startListening:self];
+ }
+}
+
+- (void) setDelegate: (id) _delegate {
+ if ([_delegate respondsToSelector:@selector(appleRemoteButton:pressedDown:)]==NO) return;
+
+ [_delegate retain];
+ [delegate release];
+ delegate = _delegate;
+}
+- (id) delegate {
+ return delegate;
+}
+
+- (BOOL) isOpenInExclusiveMode {
+ return openInExclusiveMode;
+}
+- (void) setOpenInExclusiveMode: (BOOL) value {
+ openInExclusiveMode = value;
+}
+
+- (IBAction) startListening: (id) sender {
+ if ([self isListeningToRemote]) return;
+
+ io_object_t hidDevice = [self findAppleRemoteDevice];
+ if (hidDevice == 0) return;
+
+ if ([self createInterfaceForDevice:hidDevice] == NULL) {
+ goto error;
+ }
+
+ if ([self initializeCookies]==NO) {
+ goto error;
+ }
+
+ if ([self openDevice]==NO) {
+ goto error;
+ }
+ goto cleanup;
+
+error:
+ [self stopListening:self];
+
+cleanup:
+ IOObjectRelease(hidDevice);
+}
+
+- (IBAction) stopListening: (id) sender {
+ if (queue != NULL) {
+ (*queue)->stop(queue);
+
+ //dispose of queue
+ (*queue)->dispose(queue);
+
+ //release the queue we allocated
+ (*queue)->Release(queue);
+
+ queue = NULL;
+ }
+
+ if (allCookies != nil) {
+ [allCookies autorelease];
+ allCookies = nil;
+ }
+
+ if (hidDeviceInterface != NULL) {
+ //close the device
+ (*hidDeviceInterface)->close(hidDeviceInterface);
+
+ //release the interface
+ (*hidDeviceInterface)->Release(hidDeviceInterface);
+
+ hidDeviceInterface = NULL;
+ }
+}
+
+@end
+
+@implementation AppleRemote (Singleton)
+
+static AppleRemote* sharedInstance=nil;
+
++ (AppleRemote*) sharedRemote {
+ @synchronized(self) {
+ if (sharedInstance == nil) {
+ sharedInstance = [[self alloc] init];
+ }
+ }
+ return sharedInstance;
+}
++ (id)allocWithZone:(NSZone *)zone {
+ @synchronized(self) {
+ if (sharedInstance == nil) {
+ return [super allocWithZone:zone];
+ }
+ }
+ return sharedInstance;
+}
+- (id)copyWithZone:(NSZone *)zone {
+ return self;
+}
+- (id)retain {
+ return self;
+}
+- (unsigned)retainCount {
+ return UINT_MAX; //denotes an object that cannot be released
+}
+- (void)release {
+ //do nothing
+}
+- (id)autorelease {
+ return self;
+}
+
+@end
+
+@implementation AppleRemote (PrivateMethods)
+
+- (IOHIDQueueInterface**) queue {
+ return queue;
+}
+
+- (IOHIDDeviceInterface**) hidDeviceInterface {
+ return hidDeviceInterface;
+}
+
+
+- (NSDictionary*) cookieToButtonMapping {
+ return cookieToButtonMapping;
+}
+
+- (void) handleEventWithCookieString: (NSString*) cookieString sumOfValues: (SInt32) sumOfValues {
+ NSNumber* buttonId = [[self cookieToButtonMapping] objectForKey: cookieString];
+ if (buttonId != nil) {
+ if (delegate) {
+ [delegate appleRemoteButton:[buttonId intValue] pressedDown: (sumOfValues>0)];
+ }
+ } else {
+ NSLog(@"Unknown button for cookiestring %@", cookieString);
+ }
+}
+
+@end
+
+/* Callback method for the device queue
+Will be called for any event of any type (cookie) to which we subscribe
+*/
+static void QueueCallbackFunction(void* target, IOReturn result, void* refcon, void* sender) {
+ AppleRemote* remote = (AppleRemote*)target;
+
+ IOHIDEventStruct event;
+ AbsoluteTime zeroTime = {0,0};
+ NSMutableString* cookieString = [NSMutableString string];
+ SInt32 sumOfValues = 0;
+ while (result == kIOReturnSuccess)
+ {
+ result = (*[remote queue])->getNextEvent([remote queue], &event, zeroTime, 0);
+ if ( result != kIOReturnSuccess )
+ continue;
+
+ if (REMOTE_SWITCH_COOKIE == (int)event.elementCookie) {
+ [remote setRemoteId: event.value];
+ [remote handleEventWithCookieString: @"19_" sumOfValues: 0];
+ } else {
+ sumOfValues+=event.value;
+ [cookieString appendString:[NSString stringWithFormat:@"%d_", event.elementCookie]];
+ }
+
+ //printf("%d %d %d\n", event.elementCookie, event.value, event.longValue);
+ }
+
+ [remote handleEventWithCookieString: cookieString sumOfValues: sumOfValues];
+
+}
+
+@implementation AppleRemote (IOKitMethods)
+
+- (IOHIDDeviceInterface**) createInterfaceForDevice: (io_object_t) hidDevice {
+ io_name_t className;
+ IOCFPlugInInterface** plugInInterface = NULL;
+ HRESULT plugInResult = S_OK;
+ SInt32 score = 0;
+ IOReturn ioReturnValue = kIOReturnSuccess;
+
+ hidDeviceInterface = NULL;
+
+ ioReturnValue = IOObjectGetClass(hidDevice, className);
+
+ if (ioReturnValue != kIOReturnSuccess) {
+ NSLog(@"Error: Failed to get class name.");
+ return NULL;
+ }
+
+ ioReturnValue = IOCreatePlugInInterfaceForService(hidDevice,
+ kIOHIDDeviceUserClientTypeID,
+ kIOCFPlugInInterfaceID,
+ &plugInInterface,
+ &score);
+ if (ioReturnValue == kIOReturnSuccess)
+ {
+ //Call a method of the intermediate plug-in to create the device interface
+ plugInResult = (*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID), (LPVOID) &hidDeviceInterface);
+
+ if (plugInResult != S_OK) {
+ NSLog(@"Error: Couldn't create HID class device interface");
+ }
+ // Release
+ if (plugInInterface) (*plugInInterface)->Release(plugInInterface);
+ }
+ return hidDeviceInterface;
+}
+
+- (io_object_t) findAppleRemoteDevice {
+ CFMutableDictionaryRef hidMatchDictionary = NULL;
+ IOReturn ioReturnValue = kIOReturnSuccess;
+ io_iterator_t hidObjectIterator = 0;
+ io_object_t hidDevice = 0;
+
+ // Set up a matching dictionary to search the I/O Registry by class
+ // name for all HID class devices
+ hidMatchDictionary = IOServiceMatching(AppleRemoteDeviceName);
+
+ // Now search I/O Registry for matching devices.
+ ioReturnValue = IOServiceGetMatchingServices(kIOMasterPortDefault, hidMatchDictionary, &hidObjectIterator);
+
+ if ((ioReturnValue == kIOReturnSuccess) && (hidObjectIterator != 0)) {
+ hidDevice = IOIteratorNext(hidObjectIterator);
+ }
+
+ // release the iterator
+ IOObjectRelease(hidObjectIterator);
+
+ return hidDevice;
+}
+
+- (BOOL) initializeCookies {
+ IOHIDDeviceInterface122** handle = (IOHIDDeviceInterface122**)hidDeviceInterface;
+ IOHIDElementCookie cookie;
+ long usage;
+ long usagePage;
+ id object;
+ NSArray* elements = nil;
+ NSDictionary* element;
+ IOReturn success;
+
+ if (!handle || !(*handle)) return NO;
+
+ // Copy all elements, since we're grabbing most of the elements
+ // for this device anyway, and thus, it's faster to iterate them
+ // ourselves. When grabbing only one or two elements, a matching
+ // dictionary should be passed in here instead of NULL.
+ success = (*handle)->copyMatchingElements(handle, NULL, (CFArrayRef*)&elements);
+
+ if (success == kIOReturnSuccess) {
+
+ [elements autorelease];
+ /*
+ cookies = calloc(NUMBER_OF_APPLE_REMOTE_ACTIONS, sizeof(IOHIDElementCookie));
+ memset(cookies, 0, sizeof(IOHIDElementCookie) * NUMBER_OF_APPLE_REMOTE_ACTIONS);
+ */
+ allCookies = [[NSMutableArray alloc] init];
+ int i;
+ for (i=0; i< [elements count]; i++) {
+ element = [elements objectAtIndex:i];
+
+ //Get cookie
+ object = [element valueForKey: (NSString*)CFSTR(kIOHIDElementCookieKey) ];
+ if (object == nil || ![object isKindOfClass:[NSNumber class]]) continue;
+ if (object == 0 || CFGetTypeID(object) != CFNumberGetTypeID()) continue;
+ cookie = (IOHIDElementCookie) [object longValue];
+
+ //Get usage
+ object = [element valueForKey: (NSString*)CFSTR(kIOHIDElementUsageKey) ];
+ if (object == nil || ![object isKindOfClass:[NSNumber class]]) continue;
+ usage = [object longValue];
+
+ //Get usage page
+ object = [element valueForKey: (NSString*)CFSTR(kIOHIDElementUsagePageKey) ];
+ if (object == nil || ![object isKindOfClass:[NSNumber class]]) continue;
+ usagePage = [object longValue];
+
+ [allCookies addObject: [NSNumber numberWithInt:(int)cookie]];
+ }
+ } else {
+ return NO;
+ }
+
+ return YES;
+}
+
+- (BOOL) openDevice {
+ HRESULT result;
+
+ IOHIDOptionsType openMode = kIOHIDOptionsTypeNone;
+ if ([self isOpenInExclusiveMode]) openMode = kIOHIDOptionsTypeSeizeDevice;
+ IOReturn ioReturnValue = (*hidDeviceInterface)->open(hidDeviceInterface, openMode);
+
+ if (ioReturnValue == KERN_SUCCESS) {
+ queue = (*hidDeviceInterface)->allocQueue(hidDeviceInterface);
+ if (queue) {
+ result = (*queue)->create(queue, 0, 12); //depth: maximum number of elements in queue before oldest elements in queue begin to be lost.
+
+ int i=0;
+ for(i=0; i<[allCookies count]; i++) {
+ IOHIDElementCookie cookie = (IOHIDElementCookie)[[allCookies objectAtIndex:i] intValue];
+ (*queue)->addElement(queue, cookie, 0);
+ }
+
+ // add callback for async events
+ CFRunLoopSourceRef eventSource;
+ ioReturnValue = (*queue)->createAsyncEventSource(queue, &eventSource);
+ if (ioReturnValue == KERN_SUCCESS) {
+ ioReturnValue = (*queue)->setEventCallout(queue,QueueCallbackFunction, self, NULL);
+ if (ioReturnValue == KERN_SUCCESS) {
+ CFRunLoopAddSource(CFRunLoopGetCurrent(), eventSource, kCFRunLoopDefaultMode);
+ //start data delivery to queue
+ (*queue)->start(queue);
+ return YES;
+ } else {
+ NSLog(@"Error when setting event callout");
+ }
+ } else {
+ NSLog(@"Error when creating async event source");
+ }
+ } else {
+ NSLog(@"Error when opening device");
+ }
+ }
+ return NO;
+}
+
+@end
\ No newline at end of file
projects / vlc / commitdiff