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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 <stdlib.h>
#include <charconv>
#include "utils.h"
#include "vibrator.h"
namespace android {
namespace idlcli {
class CommandVibrator;
namespace vibrator {
using aidl::ActivePwle;
using aidl::Braking;
using aidl::BrakingPwle;
using aidl::PrimitivePwle;
class CommandComposePwle : public Command {
std::string getDescription() const override { return "Compose PWLE vibration."; }
std::string getUsageSummary() const override {
return "[options] a <active pwle params> b <braking pwle params> ...";
}
UsageDetails getUsageDetails() const override {
UsageDetails details{
{"-b", {"Block for duration of vibration."}},
{"a <startAmplitude> <startFrequency> <endAmplitude> <endFrequency> <duration>",
{"Enter the active PWLE segment parameters"}},
{"b <brakingMethod> <duration>", {"Enter the braking PWLE segment parameters"}},
{"...", {"May repeat multiple times."}},
};
return details;
}
int getIntFromString(std::string input, int *output) {
int rc = 0;
int value;
const auto res = std::from_chars(input.data(), input.data() + input.size(), value);
if (res.ec == std::errc::invalid_argument) {
std::cerr << "Invalid int argument: " << input << std::endl;
rc = (int)std::errc::invalid_argument;
} else if (res.ec == std::errc::result_out_of_range) {
std::cerr << "Result out of range: " << input << std::endl;
rc = (int)std::errc::result_out_of_range;
}
*output = value;
return rc;
}
float getFloatFromString(std::string_view input, float *output) {
int rc = 0;
errno = 0;
// from_chars doesn't support conversion to float so we need to first
// convert the string_view to string and use the C-string for strtof
float value = strtof(std::string(input).c_str(), NULL);
if (input == "0.0" || input == "0") {
return rc;
}
if (value <= 0.0) {
std::cerr << "Invalid float argument: " << input << std::endl;
rc = EINVAL;
} else if (errno == ERANGE) {
std::cerr << "Result out of range: " << input << std::endl;
rc = errno;
} else {
*output = value;
}
return rc;
}
Status doArgs(Args &args) override {
while (args.get<std::string>().value_or("").find("-") == 0) {
auto opt = *args.pop<std::string>();
if (opt == "--") {
break;
} else if (opt == "-b") {
mBlocking = true;
} else {
std::cerr << "Invalid Option '" << opt << "'!" << std::endl;
return USAGE;
}
}
if (args.empty()) {
std::cerr << "Missing arguments! Please see usage" << std::endl;
return USAGE;
}
while (!args.empty()) {
PrimitivePwle pwle;
auto nextArg = args.pop();
if (*nextArg == "a") {
auto startAmplitude = args.pop();
float startAmp;
if (getFloatFromString(*startAmplitude, &startAmp))
return USAGE;
auto startFrequency = args.pop();
float startFreq;
if (getFloatFromString(*startFrequency, &startFreq))
return USAGE;
auto endAmplitude = args.pop();
float endAmp;
if (getFloatFromString(*endAmplitude, &endAmp))
return USAGE;
auto endFrequency = args.pop();
float endFreq;
if (getFloatFromString(*endFrequency, &endFreq))
return USAGE;
auto duration = args.pop();
int dur;
if (getIntFromString(*duration, &dur))
return USAGE;
ActivePwle active = {startAmp, startFreq, endAmp, endFreq, dur};
pwle = active;
} else if (*nextArg == "b") {
auto brakingMethod = args.pop();
Braking brakingMeth;
if (getIntFromString(*brakingMethod, (int *)&brakingMeth))
return USAGE;
auto duration = args.pop();
int dur;
if (getIntFromString(*duration, &dur))
return USAGE;
BrakingPwle braking = {brakingMeth, dur};
pwle = braking;
} else {
std::cerr << "Invalid arguments! Please see usage" << std::endl;
return USAGE;
}
mCompositePwle.emplace_back(std::move(pwle));
}
if (!args.empty()) {
std::cerr << "Unexpected Arguments!" << std::endl;
return USAGE;
}
return OK;
}
Status doMain(Args && /*args*/) override {
auto hal = getHal<aidl::IVibrator>();
if (!hal) {
return UNAVAILABLE;
}
ABinderProcess_setThreadPoolMaxThreadCount(1);
ABinderProcess_startThreadPool();
std::shared_ptr<VibratorCallback> callback;
if (mBlocking) {
callback = ndk::SharedRefBase::make<VibratorCallback>();
}
auto status = hal->call(&aidl::IVibrator::composePwle, mCompositePwle, callback);
if (status.isOk() && callback) {
callback->waitForComplete();
}
std::cout << "Status: " << status.getDescription() << std::endl;
return status.isOk() ? OK : ERROR;
}
bool mBlocking;
std::vector<PrimitivePwle> mCompositePwle;
};
static const auto Command =
CommandRegistry<CommandVibrator>::Register<CommandComposePwle>("composePwle");
} // namespace vibrator
} // namespace idlcli
} // namespace android
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