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/*
* Copyright (C) 2019 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.
*/
#include "../Macros.h"
#include "VibratorInputMapper.h"
namespace android {
VibratorInputMapper::VibratorInputMapper(InputDeviceContext& deviceContext)
: InputMapper(deviceContext), mVibrating(false) {}
VibratorInputMapper::~VibratorInputMapper() {}
uint32_t VibratorInputMapper::getSources() {
return 0;
}
void VibratorInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
InputMapper::populateDeviceInfo(info);
info->setVibrator(true);
}
void VibratorInputMapper::process(const RawEvent* rawEvent) {
// TODO: Handle FF_STATUS, although it does not seem to be widely supported.
}
void VibratorInputMapper::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat,
int32_t token) {
#if DEBUG_VIBRATOR
std::string patternStr;
for (size_t i = 0; i < patternSize; i++) {
if (i != 0) {
patternStr += ", ";
}
patternStr += StringPrintf("%" PRId64, pattern[i]);
}
ALOGD("vibrate: deviceId=%d, pattern=[%s], repeat=%zd, token=%d", getDeviceId(),
patternStr.c_str(), repeat, token);
#endif
mVibrating = true;
memcpy(mPattern, pattern, patternSize * sizeof(nsecs_t));
mPatternSize = patternSize;
mRepeat = repeat;
mToken = token;
mIndex = -1;
nextStep();
}
void VibratorInputMapper::cancelVibrate(int32_t token) {
#if DEBUG_VIBRATOR
ALOGD("cancelVibrate: deviceId=%d, token=%d", getDeviceId(), token);
#endif
if (mVibrating && mToken == token) {
stopVibrating();
}
}
void VibratorInputMapper::timeoutExpired(nsecs_t when) {
if (mVibrating) {
if (when >= mNextStepTime) {
nextStep();
} else {
getContext()->requestTimeoutAtTime(mNextStepTime);
}
}
}
void VibratorInputMapper::nextStep() {
mIndex += 1;
if (size_t(mIndex) >= mPatternSize) {
if (mRepeat < 0) {
// We are done.
stopVibrating();
return;
}
mIndex = mRepeat;
}
bool vibratorOn = mIndex & 1;
nsecs_t duration = mPattern[mIndex];
if (vibratorOn) {
#if DEBUG_VIBRATOR
ALOGD("nextStep: sending vibrate deviceId=%d, duration=%" PRId64, getDeviceId(), duration);
#endif
getDeviceContext().vibrate(duration);
} else {
#if DEBUG_VIBRATOR
ALOGD("nextStep: sending cancel vibrate deviceId=%d", getDeviceId());
#endif
getDeviceContext().cancelVibrate();
}
nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
mNextStepTime = now + duration;
getContext()->requestTimeoutAtTime(mNextStepTime);
#if DEBUG_VIBRATOR
ALOGD("nextStep: scheduled timeout in %0.3fms", duration * 0.000001f);
#endif
}
void VibratorInputMapper::stopVibrating() {
mVibrating = false;
#if DEBUG_VIBRATOR
ALOGD("stopVibrating: sending cancel vibrate deviceId=%d", getDeviceId());
#endif
getDeviceContext().cancelVibrate();
}
void VibratorInputMapper::dump(std::string& dump) {
dump += INDENT2 "Vibrator Input Mapper:\n";
dump += StringPrintf(INDENT3 "Vibrating: %s\n", toString(mVibrating));
}
} // namespace android
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