1 /*
2 *
3 * Copyright 2023, The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 #define LOG_TAG "AudioFlinger::Vibrator"
19 //#define LOG_NDEBUG 0
20
21 #include "Vibrator.h"
22
23 #include <android/os/ExternalVibrationScale.h>
24 #include <android/os/IExternalVibratorService.h>
25 #include <binder/IServiceManager.h>
26 #include <utils/Log.h>
27
28 #include <mutex>
29
30 namespace android::afutils {
31
getExternalVibratorService()32 static sp<os::IExternalVibratorService> getExternalVibratorService() {
33 static std::mutex m;
34 static sp<os::IExternalVibratorService> sExternalVibratorService;
35
36 std::lock_guard l(m);
37 if (sExternalVibratorService == nullptr) {
38 const sp<IBinder> binder = defaultServiceManager()->getService(
39 String16("external_vibrator_service"));
40 if (binder != nullptr) {
41 sExternalVibratorService = interface_cast<os::IExternalVibratorService>(binder);
42 }
43 }
44 return sExternalVibratorService;
45 }
46
onExternalVibrationStart(const sp<os::ExternalVibration> & externalVibration)47 os::HapticScale onExternalVibrationStart(const sp<os::ExternalVibration>& externalVibration) {
48 if (externalVibration->getAudioAttributes().flags & AUDIO_FLAG_MUTE_HAPTIC) {
49 ALOGD("%s, mute haptic according to audio attributes flag", __func__);
50 return os::HapticScale::mute();
51 }
52 const sp<os::IExternalVibratorService> evs = getExternalVibratorService();
53 if (evs != nullptr) {
54 os::ExternalVibrationScale ret;
55 binder::Status status = evs->onExternalVibrationStart(*externalVibration, &ret);
56 if (status.isOk()) {
57 ALOGD("%s, start external vibration with intensity as %d", __func__, ret.scaleLevel);
58 return os::ExternalVibration::externalVibrationScaleToHapticScale(ret);
59 } else {
60 ALOGE("Start external vibration request failed: %s", status.toString8().c_str());
61 }
62 }
63 ALOGD("%s, start external vibration with intensity as MUTE due to %s",
64 __func__,
65 evs == nullptr ? "external vibration service not found"
66 : "error when querying intensity");
67 return os::HapticScale::mute();
68 }
69
onExternalVibrationStop(const sp<os::ExternalVibration> & externalVibration)70 void onExternalVibrationStop(const sp<os::ExternalVibration>& externalVibration) {
71 const sp<os::IExternalVibratorService> evs = getExternalVibratorService();
72 if (evs != nullptr) {
73 ALOGD("%s, stop external vibration", __func__);
74 evs->onExternalVibrationStop(*externalVibration);
75 }
76 }
77
78 } // namespace android::afutils
79