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/*
* Copyright (C) 2016 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.
*/
#ifndef ANDROID_DRM_EVENT_LISTENER_H_
#define ANDROID_DRM_EVENT_LISTENER_H_
#include <sys/epoll.h>
#include <map>
#include "autofd.h"
#include "worker.h"
namespace android {
constexpr uint32_t kDefaultVsyncPeriodNanoSecond = 16666666;
constexpr int32_t kDefaultRefreshRateFrequency = 60;
class DrmDevice;
class DrmEventHandler {
public:
DrmEventHandler() {
}
virtual ~DrmEventHandler() {
}
virtual void handleEvent(uint64_t timestamp_us) = 0;
};
class DrmHistogramEventHandler {
public:
DrmHistogramEventHandler() {}
virtual ~DrmHistogramEventHandler() {}
virtual void handleHistogramEvent(uint32_t crtc_id, void *) = 0;
};
class DrmHistogramChannelEventHandler {
public:
DrmHistogramChannelEventHandler() {}
virtual ~DrmHistogramChannelEventHandler() {}
virtual void handleHistogramChannelEvent(void *) = 0;
};
class DrmTUIEventHandler {
public:
DrmTUIEventHandler() {
}
virtual ~DrmTUIEventHandler() {
}
virtual void handleTUIEvent() = 0;
};
class DrmPanelIdleEventHandler {
public:
DrmPanelIdleEventHandler() {}
virtual ~DrmPanelIdleEventHandler() {}
virtual void handleIdleEnterEvent(char const *event) = 0;
};
class DrmSysfsEventHandler {
public:
DrmSysfsEventHandler() {}
virtual ~DrmSysfsEventHandler() {}
virtual void handleSysfsEvent() = 0;
virtual int getFd() = 0;
};
class DrmEventListener : public Worker {
static constexpr const char kTUIStatusPath[] = "/sys/devices/platform/exynos-drm/tui_status";
static const uint32_t maxFds = 4;
public:
DrmEventListener(DrmDevice *drm);
virtual ~DrmEventListener();
int Init();
void RegisterHotplugHandler(DrmEventHandler *handler);
void UnRegisterHotplugHandler(DrmEventHandler *handler);
void RegisterHistogramHandler(DrmHistogramEventHandler *handler);
void UnRegisterHistogramHandler(DrmHistogramEventHandler *handler);
void RegisterHistogramChannelHandler(DrmHistogramChannelEventHandler *handler);
void UnRegisterHistogramChannelHandler(DrmHistogramChannelEventHandler *handler);
void RegisterTUIHandler(DrmTUIEventHandler *handler);
void UnRegisterTUIHandler(DrmTUIEventHandler *handler);
void RegisterPanelIdleHandler(DrmPanelIdleEventHandler *handler);
void UnRegisterPanelIdleHandler(DrmPanelIdleEventHandler *handler);
int RegisterSysfsHandler(std::shared_ptr<DrmSysfsEventHandler> handler);
int UnRegisterSysfsHandler(int sysfs_fd);
bool IsDrmInTUI();
static void FlipHandler(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec,
void *user_data);
protected:
virtual void Routine();
private:
void UEventHandler();
void DRMEventHandler();
void TUIEventHandler();
void SysfsEventHandler(int fd);
UniqueFd epoll_fd_;
UniqueFd uevent_fd_;
UniqueFd tuievent_fd_;
DrmDevice *drm_;
std::unique_ptr<DrmEventHandler> hotplug_handler_;
std::unique_ptr<DrmHistogramEventHandler> histogram_handler_;
std::unique_ptr<DrmHistogramChannelEventHandler> histogram_channel_handler_;
std::unique_ptr<DrmTUIEventHandler> tui_handler_;
std::unique_ptr<DrmPanelIdleEventHandler> panel_idle_handler_;
std::mutex mutex_;
std::map<int, std::shared_ptr<DrmSysfsEventHandler>> sysfs_handlers_;
};
} // namespace android
#endif
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