bf3bc86bea
Providing control over the strength of the vibration allows the platform
to provide a richer haptic experience to users. How this amplitude is
modulated is left up to the vibrator implementation.
This also adds an interface to ask the HAL to perform specific haptic
effects. By exposing the intent of the haptic event to the HAL, we can
let device and haptic driver manufacturers implement custom waveforms
that more closely match the desired effect.
Test: Manual testing with Marlin HAL +
adb shell /data/nativetest/vibrator_hidl_hal_test/vibrator_hidl_hal_test
Change-Id: Icfccb464c6c85adecdf354e2bd4cf422d7d31eb5
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
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#define ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
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#include <android/hardware/vibrator/1.0/IVibrator.h>
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#include <hidl/Status.h>
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#include <hidl/MQDescriptor.h>
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namespace android {
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namespace hardware {
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namespace vibrator {
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namespace V1_0 {
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namespace implementation {
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struct Vibrator : public IVibrator {
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Vibrator(vibrator_device_t *device);
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// Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
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Return<Status> on(uint32_t timeoutMs) override;
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Return<Status> off() override;
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Return<bool> supportsAmplitudeControl() override;
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Return<Status> setAmplitude(uint8_t amplitude) override;
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Return<void> perform(Effect effect, EffectStrength strength, perform_cb _hidl_cb) override;
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private:
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vibrator_device_t *mDevice;
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};
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extern "C" IVibrator* HIDL_FETCH_IVibrator(const char* name);
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} // namespace implementation
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} // namespace V1_0
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} // namespace vibrator
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_VIBRATOR_V1_0_VIBRATOR_H
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