/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_DRM_H_
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#define ANDROID_DRM_H_
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#include "drmconnector.h"
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#include "drmcrtc.h"
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#include "drmencoder.h"
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#include "drmeventlistener.h"
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#include "drmplane.h"
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#include "platform.h"
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#include <stdint.h>
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#include <tuple>
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namespace android {
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class DrmDevice {
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public:
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DrmDevice();
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~DrmDevice();
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std::tuple<int, int> Init(const char *path, int num_displays);
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int fd() const {
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return fd_.get();
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}
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const std::vector<std::unique_ptr<DrmConnector>> &connectors() const {
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return connectors_;
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}
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const std::vector<std::unique_ptr<DrmPlane>> &planes() const {
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return planes_;
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}
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std::pair<uint32_t, uint32_t> min_resolution() const {
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return min_resolution_;
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}
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std::pair<uint32_t, uint32_t> max_resolution() const {
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return max_resolution_;
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}
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DrmConnector *GetConnectorForDisplay(int display) const;
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DrmConnector *GetWritebackConnectorForDisplay(int display) const;
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DrmConnector *AvailableWritebackConnector(int display) const;
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DrmCrtc *GetCrtcForDisplay(int display) const;
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DrmPlane *GetPlane(uint32_t id) const;
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DrmEventListener *event_listener();
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int GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
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DrmProperty *property);
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int GetCrtcProperty(const DrmCrtc &crtc, const char *prop_name,
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DrmProperty *property);
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int GetConnectorProperty(const DrmConnector &connector, const char *prop_name,
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DrmProperty *property);
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const std::vector<std::unique_ptr<DrmCrtc>> &crtcs() const;
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uint32_t next_mode_id();
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int CreatePropertyBlob(void *data, size_t length, uint32_t *blob_id);
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int DestroyPropertyBlob(uint32_t blob_id);
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bool HandlesDisplay(int display) const;
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void RegisterHotplugHandler(DrmEventHandler *handler) {
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event_listener_.RegisterHotplugHandler(handler);
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}
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private:
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int TryEncoderForDisplay(int display, DrmEncoder *enc);
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int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name,
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DrmProperty *property);
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int CreateDisplayPipe(DrmConnector *connector);
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int AttachWriteback(DrmConnector *display_conn);
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UniqueFd fd_;
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uint32_t mode_id_ = 0;
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std::vector<std::unique_ptr<DrmConnector>> connectors_;
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std::vector<std::unique_ptr<DrmConnector>> writeback_connectors_;
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std::vector<std::unique_ptr<DrmEncoder>> encoders_;
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std::vector<std::unique_ptr<DrmCrtc>> crtcs_;
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std::vector<std::unique_ptr<DrmPlane>> planes_;
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DrmEventListener event_listener_;
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std::pair<uint32_t, uint32_t> min_resolution_;
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std::pair<uint32_t, uint32_t> max_resolution_;
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std::map<int, int> displays_;
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};
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} // namespace android
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#endif // ANDROID_DRM_H_
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