1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_DRM_EVENT_LISTENER_H_
18#define ANDROID_DRM_EVENT_LISTENER_H_
19
20#include "autofd.h"
21#include "worker.h"
22
23namespace android {
24
25class DrmResources;
26
27class DrmEventHandler {
28 public:
29  DrmEventHandler() {
30  }
31  virtual ~DrmEventHandler() {
32  }
33
34  virtual void HandleEvent(uint64_t timestamp_us) = 0;
35};
36
37class DrmEventListener : public Worker {
38 public:
39  DrmEventListener(DrmResources *drm);
40  virtual ~DrmEventListener() {
41  }
42
43  int Init();
44
45  void RegisterHotplugHandler(DrmEventHandler *handler);
46
47  static void FlipHandler(int fd, unsigned int sequence, unsigned int tv_sec,
48                          unsigned int tv_usec, void *user_data);
49
50 protected:
51  virtual void Routine();
52
53 private:
54  void UEventHandler();
55
56  fd_set fds_;
57  UniqueFd uevent_fd_;
58  int max_fd_ = -1;
59
60  DrmResources *drm_;
61  DrmEventHandler *hotplug_handler_ = NULL;
62};
63}
64
65#endif
66