1 /*
2 * Copyright 2014, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "ActivityRecognitionHardware"
18
19 #include <jni.h>
20 #include <nativehelper/JNIHelp.h>
21
22 #include <android_runtime/AndroidRuntime.h>
23 #include <android_runtime/Log.h>
24
25 // #include <hardware/activity_recognition.h>
26 // The activity recognition HAL is being deprecated. This means -
27 // i) Android framework code shall not depend on activity recognition
28 // being provided through the activity_recognition.h interface.
29 // ii) activity recognition HAL will not be binderized as the other HALs.
30 //
31
32 /**
33 * Initializes the ActivityRecognitionHardware class from the native side.
34 */
class_init(JNIEnv *,jclass)35 static void class_init(JNIEnv* /*env*/, jclass /*clazz*/) {
36 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
37 __FUNCTION__);
38 }
39
40 /**
41 * Initializes and connect the callbacks handlers in the HAL.
42 */
initialize(JNIEnv *,jobject)43 static void initialize(JNIEnv* /*env*/, jobject /*obj*/) {
44 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
45 __FUNCTION__);
46 }
47
48 /**
49 * De-initializes the ActivityRecognitionHardware from the native side.
50 */
release(JNIEnv *,jobject)51 static void release(JNIEnv* /*env*/, jobject /*obj*/) {
52 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
53 __FUNCTION__);
54 }
55
56 /**
57 * Returns true if ActivityRecognition HAL is supported, false otherwise.
58 */
is_supported(JNIEnv *,jclass)59 static jboolean is_supported(JNIEnv* /*env*/, jclass /*clazz*/) {
60 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
61 __FUNCTION__);
62 return JNI_FALSE;
63 }
64
65 /**
66 * Gets an array representing the supported activities.
67 */
get_supported_activities(JNIEnv *,jobject)68 static jobjectArray get_supported_activities(JNIEnv* /*env*/, jobject /*obj*/) {
69 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
70 __FUNCTION__);
71 return NULL;
72 }
73
74 /**
75 * Enables a given activity event to be actively monitored.
76 */
enable_activity_event(JNIEnv *,jobject,jint,jint,jlong)77 static int enable_activity_event(
78 JNIEnv* /*env*/,
79 jobject /*obj*/,
80 jint /*activity_handle*/,
81 jint /*event_type*/,
82 jlong /*report_latency_ns*/) {
83 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
84 __FUNCTION__);
85 return android::NO_INIT;
86 }
87
88 /**
89 * Disables a given activity event from being actively monitored.
90 */
disable_activity_event(JNIEnv *,jobject,jint,jint)91 static int disable_activity_event(
92 JNIEnv* /*env*/,
93 jobject /*obj*/,
94 jint /*activity_handle*/,
95 jint /*event_type*/) {
96 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
97 __FUNCTION__);
98 return android::NO_INIT;
99 }
100
101 /**
102 * Request flush for al batch buffers.
103 */
flush(JNIEnv *,jobject)104 static int flush(JNIEnv* /*env*/, jobject /*obj*/) {
105 ALOGE("activity_recognition HAL is deprecated. %s is effectively a no-op",
106 __FUNCTION__);
107 return android::NO_INIT;
108 }
109
110
111 static const JNINativeMethod sMethods[] = {
112 // {"name", "signature", (void*) functionPointer },
113 { "nativeClassInit", "()V", (void*) class_init },
114 { "nativeInitialize", "()V", (void*) initialize },
115 { "nativeRelease", "()V", (void*) release },
116 { "nativeIsSupported", "()Z", (void*) is_supported },
117 { "nativeGetSupportedActivities", "()[Ljava/lang/String;", (void*) get_supported_activities },
118 { "nativeEnableActivityEvent", "(IIJ)I", (void*) enable_activity_event },
119 { "nativeDisableActivityEvent", "(II)I", (void*) disable_activity_event },
120 { "nativeFlush", "()I", (void*) flush },
121 };
122
123 /**
124 * Registration method invoked in JNI load.
125 */
register_android_hardware_location_ActivityRecognitionHardware(JNIEnv * env)126 int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env) {
127 return jniRegisterNativeMethods(
128 env,
129 "android/hardware/location/ActivityRecognitionHardware",
130 sMethods,
131 NELEM(sMethods));
132 }
133