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/*
* Copyright (C) 2015 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_H_
#define ANDROID_DRM_H_
#include <stdint.h>
#include <map>
#include <tuple>
#include "DrmConnector.h"
#include "DrmCrtc.h"
#include "DrmEncoder.h"
#include "DrmEventListener.h"
#include "DrmPlane.h"
namespace android {
class DrmDevice {
public:
DrmDevice();
~DrmDevice();
std::tuple<int, int> Init(const char *path, int num_displays);
int fd() const {
return fd_.get();
}
const std::vector<std::unique_ptr<DrmConnector>> &connectors() const {
return connectors_;
}
const std::vector<std::unique_ptr<DrmPlane>> &planes() const {
return planes_;
}
std::pair<uint32_t, uint32_t> min_resolution() const {
return min_resolution_;
}
std::pair<uint32_t, uint32_t> max_resolution() const {
return max_resolution_;
}
DrmConnector *GetConnectorForDisplay(int display) const;
DrmConnector *GetWritebackConnectorForDisplay(int display) const;
DrmConnector *AvailableWritebackConnector(int display) const;
DrmCrtc *GetCrtcForDisplay(int display) const;
DrmPlane *GetPlane(uint32_t id) const;
DrmEventListener *event_listener();
int GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
DrmProperty *property);
int GetCrtcProperty(const DrmCrtc &crtc, const char *prop_name,
DrmProperty *property);
int GetConnectorProperty(const DrmConnector &connector, const char *prop_name,
DrmProperty *property);
std::string GetName() const;
const std::vector<std::unique_ptr<DrmCrtc>> &crtcs() const;
uint32_t next_mode_id();
int CreatePropertyBlob(void *data, size_t length, uint32_t *blob_id) const;
int DestroyPropertyBlob(uint32_t blob_id) const;
bool HandlesDisplay(int display) const;
void RegisterHotplugHandler(DrmEventHandler *handler) {
event_listener_.RegisterHotplugHandler(handler);
}
private:
int TryEncoderForDisplay(int display, DrmEncoder *enc);
int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name,
DrmProperty *property) const;
int CreateDisplayPipe(DrmConnector *connector);
int AttachWriteback(DrmConnector *display_conn);
UniqueFd fd_;
uint32_t mode_id_ = 0;
std::vector<std::unique_ptr<DrmConnector>> connectors_;
std::vector<std::unique_ptr<DrmConnector>> writeback_connectors_;
std::vector<std::unique_ptr<DrmEncoder>> encoders_;
std::vector<std::unique_ptr<DrmCrtc>> crtcs_;
std::vector<std::unique_ptr<DrmPlane>> planes_;
DrmEventListener event_listener_;
std::pair<uint32_t, uint32_t> min_resolution_;
std::pair<uint32_t, uint32_t> max_resolution_;
std::map<int, int> displays_;
};
} // namespace android
#endif // ANDROID_DRM_H_