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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 <thread>
#include "log/log.h"
#include "common/vsoc/lib/screen_region_view.h"
#include "common/vsoc/lib/input_events_region_view.h"
using vsoc::screen::ScreenRegionView;
using vsoc::input_events::InputEvent;
using vsoc::input_events::InputEventsRegionView;
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;
namespace {
void EventLoop(std::shared_ptr<VirtualDeviceBase> device,
std::function<int(InputEvent*, int)> next_events) {
while (1) {
InputEvent events[InputEventsRegionView::kMaxEventsPerPacket];
int count = next_events(events, InputEventsRegionView::kMaxEventsPerPacket);
if (count <= 0) {
SLOGE("Error getting events from the queue: Maybe check packet size");
continue;
}
for (int i = 0; i < count; ++i) {
device->EmitEvent(events[i].type, events[i].code, events[i].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 screen_view = ScreenRegionView::GetInstance();
if (!screen_view) {
SLOGE("Failed to open framebuffer broadcast region");
return false;
}
virtual_touchscreen_.reset(
new VirtualTouchScreen(screen_view->x_res(), screen_view->y_res()));
if (!virtual_touchscreen_->SetUp()) {
return false;
}
return true;
}
bool VSoCInputService::ProcessEvents() {
auto input_events_rv = InputEventsRegionView::GetInstance();
// TODO(jemoreira): Post available devices to region
auto worker = input_events_rv->StartWorker();
// Start device threads
std::thread screen_thread([this]() {
EventLoop(
virtual_touchscreen_, [](InputEvent* event_buffer, int max_events) {
return InputEventsRegionView::GetInstance()->GetScreenEventsOrWait(
event_buffer, max_events);
});
});
std::thread keyboard_thread([this]() {
EventLoop(virtual_keyboard_, [](InputEvent* event_buffer, int max_events) {
return InputEventsRegionView::GetInstance()->GetKeyboardEventsOrWait(
event_buffer, max_events);
});
});
std::thread button_thread([this]() {
EventLoop(virtual_power_button_,
[](InputEvent* event_buffer, int max_events) {
return InputEventsRegionView::GetInstance()
->GetPowerButtonEventsOrWait(event_buffer, max_events);
});
});
screen_thread.join();
keyboard_thread.join();
button_thread.join();
// Should never return
return false;
}
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