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/*
* Copyright (C) 2016 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 "uart_device_impl.h"
#include <android-base/unique_fd.h>
#include <binder/Status.h>
using android::binder::Status;
UartDeviceImpl::UartDeviceImpl(
const std::string& name,
android::sp<android::os::IPeripheralManagerClient> client)
: name_(name), client_(client) {}
UartDeviceImpl::~UartDeviceImpl() {
client_->ReleaseUartDevice(name_);
}
int UartDeviceImpl::SetBaudrate(uint32_t baudrate) {
return client_->SetUartDeviceBaudrate(name_, baudrate)
.serviceSpecificErrorCode();
}
int UartDeviceImpl::Write(const void* data,
uint32_t size,
uint32_t* bytes_written) {
const uint8_t* d = reinterpret_cast<const uint8_t*>(data);
return client_
->UartDeviceWrite(name_,
std::vector<uint8_t>(d, d + size),
reinterpret_cast<int32_t*>(bytes_written))
.serviceSpecificErrorCode();
}
int UartDeviceImpl::Read(void* data, uint32_t size, uint32_t* bytes_read) {
std::vector<uint8_t> v;
Status status = client_->UartDeviceRead(
name_, &v, size, reinterpret_cast<int32_t*>(bytes_read));
if (status.isOk()) {
memcpy(data, v.data(), *bytes_read);
}
return status.serviceSpecificErrorCode();
}
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