1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "device/serial/serial_connection.h"
6
7#include "base/bind.h"
8#include "device/serial/buffer.h"
9#include "device/serial/data_sink_receiver.h"
10#include "device/serial/data_source_sender.h"
11#include "device/serial/serial_io_handler.h"
12
13namespace device {
14
15SerialConnection::SerialConnection(
16    scoped_refptr<SerialIoHandler> io_handler,
17    mojo::InterfaceRequest<serial::DataSink> sink,
18    mojo::InterfaceRequest<serial::DataSource> source)
19    : io_handler_(io_handler) {
20  receiver_ = mojo::WeakBindToRequest(
21      new DataSinkReceiver(base::Bind(&SerialConnection::OnSendPipeReady,
22                                      base::Unretained(this)),
23                           base::Bind(&SerialConnection::OnSendCancelled,
24                                      base::Unretained(this)),
25                           base::Bind(base::DoNothing)),
26      &sink);
27  sender_ = mojo::WeakBindToRequest(
28      new DataSourceSender(base::Bind(&SerialConnection::OnReceivePipeReady,
29                                      base::Unretained(this)),
30                           base::Bind(base::DoNothing)),
31      &source);
32}
33
34SerialConnection::~SerialConnection() {
35  receiver_->ShutDown();
36  sender_->ShutDown();
37  io_handler_->CancelRead(serial::RECEIVE_ERROR_DISCONNECTED);
38  io_handler_->CancelWrite(serial::SEND_ERROR_DISCONNECTED);
39}
40
41void SerialConnection::GetInfo(
42    const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) {
43  callback.Run(io_handler_->GetPortInfo());
44}
45
46void SerialConnection::SetOptions(serial::ConnectionOptionsPtr options,
47                                  const mojo::Callback<void(bool)>& callback) {
48  callback.Run(io_handler_->ConfigurePort(*options));
49  io_handler_->CancelRead(device::serial::RECEIVE_ERROR_NONE);
50}
51
52void SerialConnection::SetControlSignals(
53    serial::HostControlSignalsPtr signals,
54    const mojo::Callback<void(bool)>& callback) {
55  callback.Run(io_handler_->SetControlSignals(*signals));
56}
57
58void SerialConnection::GetControlSignals(
59    const mojo::Callback<void(serial::DeviceControlSignalsPtr)>& callback) {
60  callback.Run(io_handler_->GetControlSignals());
61}
62
63void SerialConnection::Flush(const mojo::Callback<void(bool)>& callback) {
64  callback.Run(io_handler_->Flush());
65}
66
67void SerialConnection::OnSendCancelled(int32_t error) {
68  io_handler_->CancelWrite(static_cast<serial::SendError>(error));
69}
70
71void SerialConnection::OnSendPipeReady(scoped_ptr<ReadOnlyBuffer> buffer) {
72  io_handler_->Write(buffer.Pass());
73}
74
75void SerialConnection::OnReceivePipeReady(scoped_ptr<WritableBuffer> buffer) {
76  io_handler_->Read(buffer.Pass());
77}
78
79}  // namespace device
80