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/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Badge.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <AK/Time.h>
#include <AK/Types.h>
#include <Kernel/API/KResult.h>
#include <Kernel/API/TimePage.h>
#include <Kernel/Arch/x86/RegisterState.h>
#include <Kernel/Devices/ConsoleDevice.h>
#include <Kernel/Devices/Device.h>
#include <Kernel/Devices/NullDevice.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
class DeviceManagement {
AK_MAKE_ETERNAL;
public:
DeviceManagement();
static void initialize();
static DeviceManagement& the();
void attach_null_device(NullDevice const&);
bool is_console_device_attached() const { return !m_console_device.is_null(); }
void attach_console_device(ConsoleDevice const&);
void after_inserting_device(Badge<Device>, Device&);
void before_device_removal(Badge<Device>, Device&);
void for_each(Function<void(Device&)>);
Device* get_device(unsigned major, unsigned minor);
NullDevice const& null_device() const;
NullDevice& null_device();
ConsoleDevice const& console_device() const;
ConsoleDevice& console_device();
template<typename DeviceType, typename... Args>
static inline KResultOr<NonnullRefPtr<DeviceType>> try_create_device(Args&&... args)
{
auto device = TRY(adopt_nonnull_ref_or_enomem(new DeviceType(forward<Args>(args)...)));
device->after_inserting();
return device;
}
private:
RefPtr<NullDevice> m_null_device;
RefPtr<ConsoleDevice> m_console_device;
MutexProtected<HashMap<u32, Device*>> m_devices;
};
}
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