1 /*
2 * Copyright (C) 2009 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 "VibratorService"
18
19 #include <android/hardware/vibrator/1.0/IVibrator.h>
20 #include <android/hardware/vibrator/1.0/types.h>
21
22 #include "jni.h"
23 #include "JNIHelp.h"
24 #include "android_runtime/AndroidRuntime.h"
25
26 #include <utils/misc.h>
27 #include <utils/Log.h>
28 #include <hardware/vibrator.h>
29
30 #include <inttypes.h>
31 #include <stdio.h>
32
33 using android::hardware::Return;
34 using android::hardware::vibrator::V1_0::Effect;
35 using android::hardware::vibrator::V1_0::EffectStrength;
36 using android::hardware::vibrator::V1_0::IVibrator;
37 using android::hardware::vibrator::V1_0::Status;
38
39 namespace android
40 {
41
42 static sp<IVibrator> mHal;
43
vibratorInit(JNIEnv,jobject)44 static void vibratorInit(JNIEnv /* env */, jobject /* clazz */)
45 {
46 /* TODO(b/31632518) */
47 if (mHal != nullptr) {
48 return;
49 }
50 mHal = IVibrator::getService();
51 }
52
vibratorExists(JNIEnv *,jobject)53 static jboolean vibratorExists(JNIEnv* /* env */, jobject /* clazz */)
54 {
55 if (mHal != nullptr) {
56 return JNI_TRUE;
57 } else {
58 return JNI_FALSE;
59 }
60 }
61
vibratorOn(JNIEnv *,jobject,jlong timeout_ms)62 static void vibratorOn(JNIEnv* /* env */, jobject /* clazz */, jlong timeout_ms)
63 {
64 if (mHal != nullptr) {
65 Status retStatus = mHal->on(timeout_ms);
66 if (retStatus != Status::OK) {
67 ALOGE("vibratorOn command failed (%" PRIu32 ").", static_cast<uint32_t>(retStatus));
68 }
69 } else {
70 ALOGW("Tried to vibrate but there is no vibrator device.");
71 }
72 }
73
vibratorOff(JNIEnv *,jobject)74 static void vibratorOff(JNIEnv* /* env */, jobject /* clazz */)
75 {
76 if (mHal != nullptr) {
77 Status retStatus = mHal->off();
78 if (retStatus != Status::OK) {
79 ALOGE("vibratorOff command failed (%" PRIu32 ").", static_cast<uint32_t>(retStatus));
80 }
81 } else {
82 ALOGW("Tried to stop vibrating but there is no vibrator device.");
83 }
84 }
85
vibratorSupportsAmplitudeControl(JNIEnv *,jobject)86 static jlong vibratorSupportsAmplitudeControl(JNIEnv*, jobject) {
87 if (mHal != nullptr) {
88 return mHal->supportsAmplitudeControl();
89 } else {
90 ALOGW("Unable to get max vibration amplitude, there is no vibrator device.");
91 }
92 return false;
93 }
94
vibratorSetAmplitude(JNIEnv *,jobject,jint amplitude)95 static void vibratorSetAmplitude(JNIEnv*, jobject, jint amplitude) {
96 if (mHal != nullptr) {
97 Status status = mHal->setAmplitude(static_cast<uint32_t>(amplitude));
98 if (status != Status::OK) {
99 ALOGE("Failed to set vibrator amplitude (%" PRIu32 ").",
100 static_cast<uint32_t>(status));
101 }
102 } else {
103 ALOGW("Unable to set vibration amplitude, there is no vibrator device.");
104 }
105 }
106
vibratorPerformEffect(JNIEnv *,jobject,jlong effect,jint strength)107 static jlong vibratorPerformEffect(JNIEnv*, jobject, jlong effect, jint strength) {
108 if (mHal != nullptr) {
109 Status status;
110 uint32_t lengthMs;
111 mHal->perform(static_cast<Effect>(effect), static_cast<EffectStrength>(strength),
112 [&status, &lengthMs](Status retStatus, uint32_t retLengthMs) {
113 status = retStatus;
114 lengthMs = retLengthMs;
115 });
116 if (status == Status::OK) {
117 return lengthMs;
118 } else if (status != Status::UNSUPPORTED_OPERATION) {
119 // Don't warn on UNSUPPORTED_OPERATION, that's a normal even and just means the motor
120 // doesn't have a pre-defined waveform to perform for it, so we should just fall back
121 // to the framework waveforms.
122 ALOGE("Failed to perform haptic effect: effect=%" PRId64 ", strength=%" PRId32
123 ", error=%" PRIu32 ").", static_cast<int64_t>(effect),
124 static_cast<int32_t>(strength), static_cast<uint32_t>(status));
125 }
126 } else {
127 ALOGW("Unable to perform haptic effect, there is no vibrator device.");
128 }
129 return -1;
130 }
131
132 static const JNINativeMethod method_table[] = {
133 { "vibratorExists", "()Z", (void*)vibratorExists },
134 { "vibratorInit", "()V", (void*)vibratorInit },
135 { "vibratorOn", "(J)V", (void*)vibratorOn },
136 { "vibratorOff", "()V", (void*)vibratorOff },
137 { "vibratorSupportsAmplitudeControl", "()Z", (void*)vibratorSupportsAmplitudeControl},
138 { "vibratorSetAmplitude", "(I)V", (void*)vibratorSetAmplitude},
139 { "vibratorPerformEffect", "(JJ)J", (void*)vibratorPerformEffect}
140 };
141
register_android_server_VibratorService(JNIEnv * env)142 int register_android_server_VibratorService(JNIEnv *env)
143 {
144 return jniRegisterNativeMethods(env, "com/android/server/VibratorService",
145 method_table, NELEM(method_table));
146 }
147
148 };
149