summaryrefslogblamecommitdiffstats
path: root/src/core/hle/service/nvdrv/nvdrv.h
blob: 184f3c9fc5e130d24cc3865d3484cdbd631123e7 (plain) (tree)
1
2
3
4
5
6
7
8
                                    




                                            

                        



                                     
                           
 


                   
 






                                                                    
                    
       




                                                                                  
                                                           






                                                                
                                             

                                                                                          

                                                                      
 
        

                                                    
 

                                                                           
 

                                                                                

  


                                                                    

                                   
                              
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include <memory>
#include <unordered_map>
#include <vector>
#include "common/common_types.h"
#include "core/hle/service/service.h"

namespace Service::Nvidia {

namespace Devices {
class nvdevice;
}

struct IoctlFence {
    u32 id;
    u32 value;
};

static_assert(sizeof(IoctlFence) == 8, "IoctlFence has wrong size");

class Module final {
public:
    Module();
    ~Module() = default;

    /// Returns a pointer to one of the available devices, identified by its name.
    template <typename T>
    std::shared_ptr<T> GetDevice(const std::string& name) {
        auto itr = devices.find(name);
        if (itr == devices.end())
            return nullptr;
        return std::static_pointer_cast<T>(itr->second);
    }

    /// Opens a device node and returns a file descriptor to it.
    u32 Open(const std::string& device_name);
    /// Sends an ioctl command to the specified file descriptor.
    u32 Ioctl(u32 fd, u32 command, const std::vector<u8>& input, std::vector<u8>& output);
    /// Closes a device file descriptor and returns operation success.
    ResultCode Close(u32 fd);

private:
    /// Id to use for the next open file descriptor.
    u32 next_fd = 1;

    /// Mapping of file descriptors to the devices they reference.
    std::unordered_map<u32, std::shared_ptr<Devices::nvdevice>> open_files;

    /// Mapping of device node names to their implementation.
    std::unordered_map<std::string, std::shared_ptr<Devices::nvdevice>> devices;
};

/// Registers all NVDRV services with the specified service manager.
void InstallInterfaces(SM::ServiceManager& service_manager);

extern std::weak_ptr<Module> nvdrv;

} // namespace Service::Nvidia