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// SPDX-FileCopyrightText: 2021 yuzu Emulator Project
// SPDX-FileCopyrightText: 2021 Skyline Team and Contributors
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <functional>
#include <list>
#include <memory>
#include <span>
#include <string>
#include <unordered_map>
#include <vector>
#include "common/common_types.h"
#include "core/hle/service/kernel_helpers.h"
#include "core/hle/service/nvdrv/core/container.h"
#include "core/hle/service/nvdrv/nvdata.h"
#include "core/hle/service/nvflinger/ui/fence.h"
#include "core/hle/service/service.h"
namespace Core {
class System;
}
namespace Kernel {
class KEvent;
}
namespace Service::NVFlinger {
class NVFlinger;
}
namespace Service::Nvidia {
namespace NvCore {
class Container;
class SyncpointManager;
} // namespace NvCore
namespace Devices {
class nvdevice;
class nvhost_ctrl;
} // namespace Devices
class Module;
class EventInterface {
public:
explicit EventInterface(Module& module_);
~EventInterface();
Kernel::KEvent* CreateEvent(std::string name);
void FreeEvent(Kernel::KEvent* event);
private:
Module& module;
std::mutex guard;
std::list<Devices::nvhost_ctrl*> on_signal;
};
class Module final {
public:
explicit Module(Core::System& system_);
~Module();
/// Returns a pointer to one of the available devices, identified by its name.
template <typename T>
std::shared_ptr<T> GetDevice(DeviceFD fd) {
auto itr = open_files.find(fd);
if (itr == open_files.end())
return nullptr;
return std::static_pointer_cast<T>(itr->second);
}
NvResult VerifyFD(DeviceFD fd) const;
/// Opens a device node and returns a file descriptor to it.
DeviceFD Open(const std::string& device_name);
/// Sends an ioctl command to the specified file descriptor.
NvResult Ioctl1(DeviceFD fd, Ioctl command, std::span<const u8> input, std::vector<u8>& output);
NvResult Ioctl2(DeviceFD fd, Ioctl command, std::span<const u8> input,
std::span<const u8> inline_input, std::vector<u8>& output);
NvResult Ioctl3(DeviceFD fd, Ioctl command, std::span<const u8> input, std::vector<u8>& output,
std::vector<u8>& inline_output);
/// Closes a device file descriptor and returns operation success.
NvResult Close(DeviceFD fd);
NvResult QueryEvent(DeviceFD fd, u32 event_id, Kernel::KEvent*& event);
private:
friend class EventInterface;
friend class Service::NVFlinger::NVFlinger;
/// Manages syncpoints on the host
NvCore::Container container;
/// Id to use for the next open file descriptor.
DeviceFD next_fd = 1;
using FilesContainerType = std::unordered_map<DeviceFD, std::shared_ptr<Devices::nvdevice>>;
/// Mapping of file descriptors to the devices they reference.
FilesContainerType open_files;
KernelHelpers::ServiceContext service_context;
EventInterface events_interface;
std::unordered_map<std::string, std::function<FilesContainerType::iterator(DeviceFD)>> builders;
};
void LoopProcess(NVFlinger::NVFlinger& nvflinger, Core::System& system);
} // namespace Service::Nvidia
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