| /* |
| * 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 "common/vsoc/lib/input_events_region_view.h" |
| |
| #include <linux/input.h> |
| #include <linux/uinput.h> |
| |
| #include "common/vsoc/lib/circqueue_impl.h" |
| |
| using vsoc::layout::input_events::InputEventsLayout; |
| |
| namespace vsoc { |
| namespace input_events { |
| |
| namespace { |
| void InitInputEvent(InputEvent* evt, uint16_t type, uint16_t code, uint32_t value) { |
| evt->type = type; |
| evt->code = code; |
| evt->value = value; |
| } |
| } // namespace |
| |
| const int InputEventsRegionView::kMaxEventsPerPacket = 4; |
| |
| bool InputEventsRegionView::HandleSingleTouchEvent(bool down, int x, int y) { |
| // TODO(jemoreira): Use multitouch when available |
| InputEvent events[4]; |
| // Make sure to modify kMaxEventPerPacket if more events are sent. |
| InitInputEvent(&events[0], EV_ABS, ABS_X, x); |
| InitInputEvent(&events[1], EV_ABS, ABS_Y, y); |
| InitInputEvent(&events[2], EV_KEY, BTN_TOUCH, down); |
| InitInputEvent(&events[3], EV_SYN, 0, 0); |
| return 0 < |
| data()->touch_screen_queue.Write( |
| this, reinterpret_cast<char*>(&events[0]), sizeof(events), true); |
| } |
| |
| bool InputEventsRegionView::HandlePowerButtonEvent(bool down) { |
| InputEvent events[2]; |
| InitInputEvent(&events[0], EV_KEY, KEY_POWER, down); |
| InitInputEvent(&events[1], EV_SYN, 0, 0); |
| return 0 < data()->power_button_queue.Write( |
| this, reinterpret_cast<char*>(&events[0]), |
| sizeof(events), true); |
| } |
| |
| bool InputEventsRegionView::HandleKeyboardEvent(bool down, uint16_t key_code) { |
| InputEvent events[2]; |
| InitInputEvent(&events[0], EV_KEY, key_code, down); |
| InitInputEvent(&events[1], EV_SYN, 0, 0); |
| return 0 < |
| data()->keyboard_queue.Write(this, reinterpret_cast<char*>(&events[0]), |
| sizeof(events), true); |
| } |
| |
| intptr_t InputEventsRegionView::GetScreenEventsOrWait(InputEvent* evt, |
| int max_event_count) { |
| intptr_t ret = this->data()->touch_screen_queue.Read( |
| this, reinterpret_cast<char*>(evt), sizeof(InputEvent) * max_event_count); |
| if (ret < 0) { |
| return ret; |
| } |
| return ret / sizeof(InputEvent); |
| } |
| |
| intptr_t InputEventsRegionView::GetKeyboardEventsOrWait(InputEvent* evt, |
| int max_event_count) { |
| intptr_t ret = this->data()->keyboard_queue.Read( |
| this, reinterpret_cast<char*>(evt), sizeof(InputEvent) * max_event_count); |
| if (ret < 0) { |
| return ret; |
| } |
| return ret / sizeof(InputEvent); |
| } |
| |
| intptr_t InputEventsRegionView::GetPowerButtonEventsOrWait( |
| InputEvent* evt, int max_event_count) { |
| intptr_t ret = this->data()->power_button_queue.Read( |
| this, reinterpret_cast<char*>(evt), sizeof(InputEvent) * max_event_count); |
| if (ret < 0) { |
| return ret; |
| } |
| return ret / sizeof(InputEvent); |
| } |
| |
| } // namespace input_events |
| } // namespace vsoc |