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serenity/Kernel/Bus/USB/USBController.h
Andreas Kling 11eee67b85 Kernel: Make self-contained locking smart pointers their own classes
Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
2022-08-20 17:20:43 +02:00

40 lines
953 B
C++

/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/AtomicRefCounted.h>
#include <AK/Error.h>
#include <Kernel/Bus/USB/USBDevice.h>
#include <Kernel/Bus/USB/USBTransfer.h>
namespace Kernel::USB {
class USBController : public AtomicRefCounted<USBController> {
public:
virtual ~USBController() = default;
virtual ErrorOr<void> initialize() = 0;
virtual ErrorOr<void> reset() = 0;
virtual ErrorOr<void> stop() = 0;
virtual ErrorOr<void> start() = 0;
virtual ErrorOr<size_t> submit_control_transfer(Transfer&) = 0;
virtual ErrorOr<size_t> submit_bulk_transfer(Transfer& transfer) = 0;
u8 allocate_address();
private:
u8 m_next_device_index { 1 };
IntrusiveListNode<USBController, NonnullLockRefPtr<USBController>> m_controller_list_node;
public:
using List = IntrusiveList<&USBController::m_controller_list_node>;
};
}