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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.
*/
#include "vsoc_input_service.h"
#include <linux/input.h>
#include <linux/uinput.h>
#include <linux/virtio_input.h>
#include <thread>
#include <gflags/gflags.h>
#include "log/log.h"
#include <glog/logging.h>
#include "common/libs/fs/shared_fd.h"
#include "common/libs/device_config/device_config.h"
#include "common/vsoc/lib/input_events_region_view.h"
using vsoc::input_events::InputEvent;
using vsoc_input_service::VirtualDeviceBase;
using vsoc_input_service::VirtualKeyboard;
using vsoc_input_service::VirtualPowerButton;
using vsoc_input_service::VirtualTouchScreen;
using vsoc_input_service::VSoCInputService;
DEFINE_uint32(keyboard_port, 0, "keyboard vsock port");
DEFINE_uint32(touch_port, 0, "keyboard vsock port");
namespace {
void EventLoop(std::shared_ptr<VirtualDeviceBase> device,
std::function<InputEvent()> next_event) {
while (1) {
InputEvent event = next_event();
device->EmitEvent(event.type, event.code, event.value);
}
}
} // namespace
bool VSoCInputService::SetUpDevices() {
virtual_power_button_.reset(new VirtualPowerButton());
if (!virtual_power_button_->SetUp()) {
return false;
}
virtual_keyboard_.reset(new VirtualKeyboard());
if (!virtual_keyboard_->SetUp()) {
return false;
}
auto config = cvd::DeviceConfig::Get();
if (!config) {
LOG(ERROR) << "Failed to open device config";
return false;
}
virtual_touchscreen_.reset(
new VirtualTouchScreen(config->screen_x_res(), config->screen_y_res()));
if (!virtual_touchscreen_->SetUp()) {
return false;
}
return true;
}
bool VSoCInputService::ProcessEvents() {
cvd::SharedFD keyboard_fd;
cvd::SharedFD touch_fd;
LOG(INFO) << "Connecting to the keyboard at " << FLAGS_keyboard_port;
if (FLAGS_keyboard_port) {
keyboard_fd = cvd::SharedFD::VsockClient(2, FLAGS_keyboard_port, SOCK_STREAM);
if (!keyboard_fd->IsOpen()) {
LOG(ERROR) << "Could not connect to the keyboard at vsock:2:" << FLAGS_keyboard_port;
}
LOG(INFO) << "Connected to keyboard";
}
LOG(INFO) << "Connecting to the touchscreen at " << FLAGS_keyboard_port;
if (FLAGS_touch_port) {
touch_fd = cvd::SharedFD::VsockClient(2, FLAGS_touch_port, SOCK_STREAM);
if (!touch_fd->IsOpen()) {
LOG(ERROR) << "Could not connect to the touch at vsock:2:" << FLAGS_touch_port;
}
LOG(INFO) << "Connected to touch";
}
// Start device threads
std::thread screen_thread([this, touch_fd]() {
EventLoop(virtual_touchscreen_, [touch_fd]() {
struct virtio_input_event event;
if (touch_fd->Read(&event, sizeof(event)) != sizeof(event)) {
LOG(FATAL) << "Could not read touch event: " << touch_fd->StrError();
}
return InputEvent {
.type = event.type,
.code = event.code,
.value = event.value,
};
});
});
std::thread keyboard_thread([this, keyboard_fd]() {
EventLoop(virtual_keyboard_, [keyboard_fd]() {
struct virtio_input_event event;
if (keyboard_fd->Read(&event, sizeof(event)) != sizeof(event)) {
LOG(FATAL) << "Could not read keyboard event: " << keyboard_fd->StrError();
}
return InputEvent {
.type = event.type,
.code = event.code,
.value = event.value,
};
});
});
screen_thread.join();
keyboard_thread.join();
// Should never return
return false;
}
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