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net_java_games_input_OSXHIDDevice.c

/*
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 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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#include <IOKit/IOTypes.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/hid/IOHIDLib.h>
#include <IOKit/hid/IOHIDKeys.h>
#include <CoreFoundation/CoreFoundation.h>
#include "net_java_games_input_OSXHIDDevice.h"
#include "util.h"
#include "macosxutil.h"

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDDevice_nReleaseDevice(JNIEnv *env, jclass unused, jlong device_address, jlong interface_address) {
      io_object_t hidDevice = (io_object_t)device_address;
      IOHIDDeviceInterface **device_interface = (IOHIDDeviceInterface **)(intptr_t)interface_address;;
      (*device_interface)->Release(device_interface);
      IOObjectRelease(hidDevice);
}

JNIEXPORT jobject JNICALL Java_net_java_games_input_OSXHIDDevice_nGetDeviceProperties(JNIEnv *env, jclass unused, jlong device_address) {
      io_object_t hidDevice = (io_object_t)device_address;
      CFMutableDictionaryRef properties;

      kern_return_t result = IORegistryEntryCreateCFProperties(hidDevice,
                  &properties,
                  kCFAllocatorDefault,
                  kNilOptions);
      if (result != KERN_SUCCESS) {
            throwIOException(env, "Failed to create properties for device (%ld)", result);
            return NULL;
      }
      jobject map = createMapFromCFDictionary(env, properties);
      CFRelease(properties);
      return map;
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDDevice_nOpen
  (JNIEnv * env, jclass unused, jlong lpDevice) {
    IOHIDDeviceInterface **hidDeviceInterface = (IOHIDDeviceInterface **)(intptr_t)lpDevice;
    IOReturn ioReturnValue = (*hidDeviceInterface)->open(hidDeviceInterface, 0);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Device open failed: %d", ioReturnValue);
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDDevice_nClose
  (JNIEnv * env, jclass unused, jlong lpDevice) {
    IOHIDDeviceInterface **hidDeviceInterface = (IOHIDDeviceInterface **)(intptr_t)lpDevice;
    IOReturn ioReturnValue = (*hidDeviceInterface)->close(hidDeviceInterface);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Device close failed: %d", ioReturnValue);
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDDevice_nGetElementValue
  (JNIEnv * env, jclass unused, jlong lpDevice, jlong hidCookie, jobject event_return) {
    IOHIDDeviceInterface **hidDeviceInterface = (IOHIDDeviceInterface **)(intptr_t)lpDevice;
    IOHIDElementCookie cookie = (IOHIDElementCookie)(intptr_t)hidCookie;
    IOHIDEventStruct event;

    IOReturn ioReturnValue = (*hidDeviceInterface)->getElementValue(hidDeviceInterface, cookie, &event);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Device getElementValue failed: %d", ioReturnValue);
        return;
    }
    copyEvent(env, &event, event_return);
    if (event.longValue != NULL) {
        free(event.longValue);
    }
}

JNIEXPORT jlong JNICALL Java_net_java_games_input_OSXHIDDevice_nCreateQueue(JNIEnv *env, jclass unused, jlong device_address) {
    IOHIDDeviceInterface **hidDeviceInterface = (IOHIDDeviceInterface **)(intptr_t)device_address;
    IOHIDQueueInterface  **queue = (*hidDeviceInterface)->allocQueue(hidDeviceInterface);

    if (queue == NULL) {
        throwIOException(env, "Could not allocate queue");
        return 0;
      }
    return (jlong)(intptr_t)queue;
}

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