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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <span>
#include <vector>
#include "common/common_types.h"
#include "core/hle/service/nvdrv/nvdata.h"
namespace Core {
class System;
}
namespace Kernel {
class KEvent;
}
namespace Service::Nvidia::Devices {
/// Represents an abstract nvidia device node. It is to be subclassed by concrete device nodes to
/// implement the ioctl interface.
class nvdevice {
public:
explicit nvdevice(Core::System& system_) : system{system_} {}
virtual ~nvdevice() = default;
/**
* Handles an ioctl1 request.
* @param command The ioctl command id.
* @param input A buffer containing the input data for the ioctl.
* @param output A buffer where the output data will be written to.
* @returns The result code of the ioctl.
*/
virtual NvResult Ioctl1(DeviceFD fd, Ioctl command, std::span<const u8> input,
std::vector<u8>& output) = 0;
/**
* Handles an ioctl2 request.
* @param command The ioctl command id.
* @param input A buffer containing the input data for the ioctl.
* @param inline_input A buffer containing the input data for the ioctl which has been inlined.
* @param output A buffer where the output data will be written to.
* @returns The result code of the ioctl.
*/
virtual NvResult Ioctl2(DeviceFD fd, Ioctl command, std::span<const u8> input,
std::span<const u8> inline_input, std::vector<u8>& output) = 0;
/**
* Handles an ioctl3 request.
* @param command The ioctl command id.
* @param input A buffer containing the input data for the ioctl.
* @param output A buffer where the output data will be written to.
* @param inline_output A buffer where the inlined output data will be written to.
* @returns The result code of the ioctl.
*/
virtual NvResult Ioctl3(DeviceFD fd, Ioctl command, std::span<const u8> input,
std::vector<u8>& output, std::vector<u8>& inline_output) = 0;
/**
* Called once a device is opened
* @param fd The device fd
*/
virtual void OnOpen(DeviceFD fd) = 0;
/**
* Called once a device is closed
* @param fd The device fd
*/
virtual void OnClose(DeviceFD fd) = 0;
virtual Kernel::KEvent* QueryEvent(u32 event_id) {
return nullptr;
}
protected:
Core::System& system;
};
} // namespace Service::Nvidia::Devices
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