df131ad088
Remove the verbose #ifndef/#define/#endif pattern for maintaining header idempotency, and replace it with a simple #pragma once. This simplifies the headers, and prevents redundant changes when header files get moved. Tracepoints.h.in is not modified to use the pragma as it requires self-inclusion. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2018, Google Inc.
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*
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* media_device.h - Media device handler
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*/
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#pragma once
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#include <map>
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#include <sstream>
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#include <string>
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#include <vector>
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#include <linux/media.h>
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#include <libcamera/base/log.h>
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#include <libcamera/base/signal.h>
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#include "libcamera/internal/media_object.h"
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namespace libcamera {
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class MediaDevice : protected Loggable
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{
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public:
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MediaDevice(const std::string &deviceNode);
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~MediaDevice();
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bool acquire();
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void release();
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bool busy() const { return acquired_; }
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bool lock();
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void unlock();
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int populate();
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bool isValid() const { return valid_; }
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const std::string driver() const { return driver_; }
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const std::string deviceNode() const { return deviceNode_; }
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const std::string model() const { return model_; }
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unsigned int version() const { return version_; }
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unsigned int hwRevision() const { return hwRevision_; }
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const std::vector<MediaEntity *> &entities() const { return entities_; }
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MediaEntity *getEntityByName(const std::string &name) const;
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MediaLink *link(const std::string &sourceName, unsigned int sourceIdx,
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const std::string &sinkName, unsigned int sinkIdx);
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MediaLink *link(const MediaEntity *source, unsigned int sourceIdx,
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const MediaEntity *sink, unsigned int sinkIdx);
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MediaLink *link(const MediaPad *source, const MediaPad *sink);
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int disableLinks();
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Signal<> disconnected;
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protected:
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std::string logPrefix() const override;
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private:
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int open();
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void close();
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MediaObject *object(unsigned int id);
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bool addObject(MediaObject *object);
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void clear();
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struct media_v2_interface *findInterface(const struct media_v2_topology &topology,
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unsigned int entityId);
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bool populateEntities(const struct media_v2_topology &topology);
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bool populatePads(const struct media_v2_topology &topology);
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bool populateLinks(const struct media_v2_topology &topology);
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void fixupEntityFlags(struct media_v2_entity *entity);
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friend int MediaLink::setEnabled(bool enable);
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int setupLink(const MediaLink *link, unsigned int flags);
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std::string driver_;
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std::string deviceNode_;
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std::string model_;
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unsigned int version_;
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unsigned int hwRevision_;
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int fd_;
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bool valid_;
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bool acquired_;
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bool lockOwner_;
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std::map<unsigned int, MediaObject *> objects_;
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std::vector<MediaEntity *> entities_;
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};
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} /* namespace libcamera */
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