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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "VibratorService"
#include <log/log.h>
#include <cutils/properties.h>
#include <hardware/hardware.h>
#include <hardware/vibrator.h>
#include "Vibrator.h"
#include <cinttypes>
#include <cmath>
#include <fstream>
#include <iostream>
namespace android {
namespace hardware {
namespace vibrator {
namespace V1_2 {
namespace implementation {
static constexpr int8_t MAX_RTP_INPUT = 127;
static constexpr int8_t MIN_RTP_INPUT = 0;
static constexpr char RTP_MODE[] = "rtp";
static constexpr char WAVEFORM_MODE[] = "waveform";
static constexpr uint32_t LOOP_MODE_OPEN = 1;
static constexpr uint32_t SINE_WAVE = 1;
static constexpr uint32_t SQUARE_WAVE = 0;
// Default max voltage 2.15V
static constexpr uint32_t VOLTAGE_MAX = 107;
// Use effect #1 in the waveform library for CLICK effect
static constexpr char WAVEFORM_CLICK_EFFECT_SEQ[] = "1 0";
static constexpr int32_t WAVEFORM_CLICK_EFFECT_MS = 6;
// Use effect #2 in the waveform library for TICK effect
static constexpr char WAVEFORM_TICK_EFFECT_SEQ[] = "2 0";
static constexpr int32_t WAVEFORM_TICK_EFFECT_MS = 2;
// Use effect #3 in the waveform library for DOUBLE_CLICK effect
static constexpr char WAVEFORM_DOUBLE_CLICK_EFFECT_SEQ[] = "3 0";
static constexpr uint32_t WAVEFORM_DOUBLE_CLICK_EFFECT_MS = 182;
// Use effect #4 in the waveform library for HEAVY_CLICK effect
static constexpr char WAVEFORM_HEAVY_CLICK_EFFECT_SEQ[] = "4 0";
static constexpr uint32_t WAVEFORM_HEAVY_CLICK_EFFECT_MS = 8;
using Status = ::android::hardware::vibrator::V1_0::Status;
using EffectStrength = ::android::hardware::vibrator::V1_0::EffectStrength;
Vibrator::Vibrator(HwApi &&hwapi, std::uint32_t short_lra_period, std::uint32_t long_lra_period)
: mHwApi(std::move(hwapi)), mShortLraPeriod(short_lra_period), mLongLraPeriod(long_lra_period) {
mClickDuration = property_get_int32("ro.vibrator.hal.click.duration", WAVEFORM_CLICK_EFFECT_MS);
mTickDuration = property_get_int32("ro.vibrator.hal.tick.duration", WAVEFORM_TICK_EFFECT_MS);
mHeavyClickDuration =
property_get_int32("ro.vibrator.hal.heavyclick.duration", WAVEFORM_HEAVY_CLICK_EFFECT_MS);
mShortVoltageMax = property_get_int32("ro.vibrator.hal.short.voltage", VOLTAGE_MAX);
mLongVoltageMax = property_get_int32("ro.vibrator.hal.long.voltage", VOLTAGE_MAX);
// This enables effect #1 from the waveform library to be triggered by SLPI
// while the AP is in suspend mode
mHwApi.lpTriggerEffect << 1 << std::endl;
if (!mHwApi.lpTriggerEffect) {
ALOGW("Failed to set LP trigger mode (%d): %s", errno, strerror(errno));
}
}
Return<Status> Vibrator::on(uint32_t timeoutMs, bool isWaveform) {
// Bonito / Sargo only support open-loop mode
mHwApi.ctrlLoop << LOOP_MODE_OPEN << std::endl;
mHwApi.duration << timeoutMs << std::endl;
if (!mHwApi.duration) {
ALOGE("Failed to set duration (%d): %s", errno, strerror(errno));
return Status::UNKNOWN_ERROR;
}
if (isWaveform) {
mHwApi.mode << WAVEFORM_MODE << std::endl;
mHwApi.lraWaveShape << SINE_WAVE << std::endl;
mHwApi.odClamp << mShortVoltageMax << std::endl;
mHwApi.olLraPeriod << mShortLraPeriod << std::endl;
} else {
mHwApi.mode << RTP_MODE << std::endl;
mHwApi.lraWaveShape << SQUARE_WAVE << std::endl;
mHwApi.odClamp << mLongVoltageMax << std::endl;
mHwApi.olLraPeriod << mLongLraPeriod << std::endl;
}
mHwApi.activate << 1 << std::endl;
if (!mHwApi.activate) {
ALOGE("Failed to activate (%d): %s", errno, strerror(errno));
return Status::UNKNOWN_ERROR;
}
return Status::OK;
}
// Methods from ::android::hardware::vibrator::V1_2::IVibrator follow.
Return<Status> Vibrator::on(uint32_t timeoutMs) {
return on(timeoutMs, false /* isWaveform */);
}
Return<Status> Vibrator::off() {
mHwApi.activate << 0 << std::endl;
if (!mHwApi.activate) {
ALOGE("Failed to turn vibrator off (%d): %s", errno, strerror(errno));
return Status::UNKNOWN_ERROR;
}
return Status::OK;
}
Return<bool> Vibrator::supportsAmplitudeControl() {
return (mHwApi.rtpInput ? true : false);
}
Return<Status> Vibrator::setAmplitude(uint8_t amplitude) {
if (amplitude == 0) {
return Status::BAD_VALUE;
}
int32_t rtp_input =
std::round((amplitude - 1) / 254.0 * (MAX_RTP_INPUT - MIN_RTP_INPUT) + MIN_RTP_INPUT);
mHwApi.rtpInput << rtp_input << std::endl;
if (!mHwApi.rtpInput) {
ALOGE("Failed to set amplitude (%d): %s", errno, strerror(errno));
return Status::UNKNOWN_ERROR;
}
return Status::OK;
}
static uint8_t convertEffectStrength(EffectStrength strength) {
uint8_t scale;
switch (strength) {
case EffectStrength::LIGHT:
scale = 2; // 50%
break;
case EffectStrength::MEDIUM:
case EffectStrength::STRONG:
scale = 0; // 100%
break;
}
return scale;
}
Return<void> Vibrator::perform(V1_0::Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
return performEffect(static_cast<Effect>(effect), strength, _hidl_cb);
}
Return<void> Vibrator::perform_1_1(V1_1::Effect_1_1 effect, EffectStrength strength,
perform_cb _hidl_cb) {
return performEffect(static_cast<Effect>(effect), strength, _hidl_cb);
}
Return<void> Vibrator::perform_1_2(Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
return performEffect(static_cast<Effect>(effect), strength, _hidl_cb);
}
Return<void> Vibrator::performEffect(Effect effect, EffectStrength strength, perform_cb _hidl_cb) {
Status status = Status::OK;
uint32_t timeMS;
switch (effect) {
case Effect::CLICK:
mHwApi.sequencer << WAVEFORM_CLICK_EFFECT_SEQ << std::endl;
timeMS = mClickDuration;
break;
case Effect::DOUBLE_CLICK:
mHwApi.sequencer << WAVEFORM_DOUBLE_CLICK_EFFECT_SEQ << std::endl;
timeMS = WAVEFORM_DOUBLE_CLICK_EFFECT_MS;
break;
case Effect::TICK:
mHwApi.sequencer << WAVEFORM_TICK_EFFECT_SEQ << std::endl;
timeMS = mTickDuration;
break;
case Effect::HEAVY_CLICK:
mHwApi.sequencer << WAVEFORM_HEAVY_CLICK_EFFECT_SEQ << std::endl;
timeMS = mHeavyClickDuration;
break;
default:
_hidl_cb(Status::UNSUPPORTED_OPERATION, 0);
return Void();
}
mHwApi.scale << convertEffectStrength(strength) << std::endl;
on(timeMS, true /* isWaveform */);
_hidl_cb(status, timeMS);
return Void();
}
} // namespace implementation
} // namespace V1_2
} // namespace vibrator
} // namespace hardware
} // namespace android
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