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60 lines
2.4 KiB
60 lines
2.4 KiB
4 months ago
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/*
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* Copyright (C) 2018 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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package android.hardware.vibrator@1.3;
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import @1.0::EffectStrength;
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import @1.0::Status;
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import @1.2::IVibrator;
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interface IVibrator extends @1.2::IVibrator {
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/**
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* Returns whether the vibrator supports control through an alternate interface.
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*/
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supportsExternalControl() generates (bool supports);
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/**
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* Enables/disables control override of vibrator to audio.
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*
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* When this API is set, the vibrator control should be ceded to audio system
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* for haptic audio. While this is enabled, issuing of other commands to control
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* the vibrator is unsupported and the resulting behavior is undefined. Amplitude
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* control may or may not be supported and is reflected in the return value of
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* supportsAmplitudeControl() while this is enabled. When this is disabled, the
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* vibrator should resume to an off state.
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*
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* @param enabled Whether external control should be enabled or disabled.
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* @return status Whether the command was successful or not. Must return
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* Status::UNSUPPORTED_OPERATION if external control is
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* not supported by the device.
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*/
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setExternalControl(bool enabled) generates (Status status);
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/**
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* Fire off a predefined haptic event.
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*
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* @param event The type of haptic event to trigger.
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* @return status Whether the effect was successfully performed or not. Must
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* return Status::UNSUPPORTED_OPERATION if the effect is not supported.
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* @return lengthMs The length of time the event is expected to take in
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* milliseconds. This doesn't need to be perfectly accurate, but should be a reasonable
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* approximation. Should be a positive, non-zero value if the returned status is Status::OK,
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* and set to 0 otherwise.
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*/
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perform_1_3(Effect effect, EffectStrength strength)
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generates (Status status, uint32_t lengthMs);
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};
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