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121 lines
3.0 KiB
121 lines
3.0 KiB
/*
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* Copyright (C) 2019 The LineageOS 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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#define LOG_TAG "android.hardware.vibrator@1.0-service.samsung-haptic"
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#include <log/log.h>
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#include <android-base/stringprintf.h>
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#include <hardware/hardware.h>
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#include <hardware/vibrator.h>
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#include "Vibrator.h"
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#include <cinttypes>
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#include <cmath>
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#include <fstream>
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#include <iostream>
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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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/*
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* Write value to path and close file.
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*/
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template <typename T>
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static void set(const std::string& path, const T& value) {
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std::ofstream file(path);
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file << value << std::endl;
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}
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Vibrator::Vibrator() {
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mIntensity = 10000;
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}
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// SEC Haptic Engine
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Return<Status> Vibrator::doHaptic(int timeout, int intensity, int freq, int overdrive) {
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std::string haptic =
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android::base::StringPrintf("4 %d %d %d %d", timeout, intensity, freq, overdrive);
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set("/sys/class/timed_output/vibrator/haptic_engine", haptic);
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set("/sys/class/timed_output/vibrator/enable", 1);
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return Status::OK;
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}
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// Methods from ::android::hardware::vibrator::V1_0::IVibrator follow.
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Return<Status> Vibrator::on(uint32_t timeout_ms) {
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return doHaptic(timeout_ms, mIntensity, 0, 0);
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}
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Return<Status> Vibrator::off() {
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set("/sys/class/timed_output/vibrator/enable", 0);
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return Status::OK;
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}
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Return<bool> Vibrator::supportsAmplitudeControl() {
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return true;
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}
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Return<Status> Vibrator::setAmplitude(uint8_t amplitude) {
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if (amplitude == 0) {
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return Status::BAD_VALUE;
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}
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mIntensity = amplitude * 10000 / 255;
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return Status::OK;
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}
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Return<void> Vibrator::perform(Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
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Status status = Status::OK;
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uint32_t timeMS;
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uint32_t intensity;
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switch (strength) {
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case EffectStrength::LIGHT:
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intensity = 1000;
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break;
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case EffectStrength::STRONG:
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intensity = 5000;
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break;
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default:
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intensity = 3000;
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break;
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}
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switch (effect) {
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case Effect::CLICK:
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case Effect::DOUBLE_CLICK:
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status = doHaptic(7, intensity, 2000, 1);
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timeMS = 7;
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break;
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default:
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status = Status::UNSUPPORTED_OPERATION;
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timeMS = 0;
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break;
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}
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_hidl_cb(status, timeMS);
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return Void();
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}
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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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