ladybird/Kernel/Storage/StorageController.h

/*
 * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Devices/Device.h>
#include <Kernel/Locking/Mutex.h>
#include <Kernel/Memory/PhysicalPage.h>
#include <Kernel/PhysicalAddress.h>
#include <Kernel/Random.h>
#include <Kernel/WaitQueue.h>

namespace Kernel {

class AsyncBlockDeviceRequest;
class StorageDevice;
class StorageController : public RefCounted<StorageController> {

public:
    virtual ~StorageController() = default;

    virtual RefPtr<StorageDevice> device(u32 index) const = 0;
    virtual size_t devices_count() const = 0;

    u32 controller_id() const { return m_controller_id; }

protected:
    virtual bool reset() = 0;
    virtual bool shutdown() = 0;

    virtual void complete_current_request(AsyncDeviceRequest::RequestResult) = 0;

    StorageController();

private:
    u32 const m_controller_id { 0 };
};
}