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/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __HW_EVENTS_DRM_H__
#define __HW_EVENTS_DRM_H__
#include <sys/poll.h>
#include <map>
#include <string>
#include <utility>
#include <vector>
#include "hw_events_interface.h"
#include "hw_interface.h"
namespace sdm {
using std::vector;
class HWEventsDRM : public HWEventsInterface {
public:
virtual DisplayError Init(int display_type, HWEventHandler *event_handler,
const vector<HWEvent> &event_list);
virtual DisplayError Deinit();
private:
static const int kMaxStringLength = 1024;
typedef void (HWEventsDRM::*EventParser)(char *);
struct HWEventData {
HWEvent event_type {};
EventParser event_parser {};
};
static void *DisplayEventThread(void *context);
static void VSyncHandlerCallback(int fd, unsigned int sequence, unsigned int tv_sec,
unsigned int tv_usec, void *data);
void *DisplayEventHandler();
void HandleVSync(char *data);
void HandleIdleTimeout(char *data);
void HandleThreadExit(char *data) {}
void HandleThermal(char *data) {}
void HandleBlank(char *data) {}
void HandleIdlePowerCollapse(char *data);
void PopulateHWEventData(const vector<HWEvent> &event_list);
DisplayError SetEventParser();
DisplayError InitializePollFd();
DisplayError CloseFds();
DisplayError RegisterVSync();
HWEventHandler *event_handler_{};
vector<HWEventData> event_data_list_{};
vector<pollfd> poll_fds_{};
pthread_t event_thread_{};
std::string event_thread_name_ = "SDM_EventThread";
bool exit_threads_ = false;
uint32_t vsync_index_ = 0;
};
} // namespace sdm
#endif // __HW_EVENTS_DRM_H__
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