mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-05-17 00:23:00 +00:00
7400eb3640
Add support for async transfers by using a separate kernel task to poll a list of active async transfers on a set time interval, and invoke their user-provided callback function when they are complete. Also add support for the interrupt class of transfers, building off of this async functionality.
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
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 void cancel_async_transfer(NonnullLockRefPtr<Transfer> transfer) = 0;
|
|
virtual ErrorOr<size_t> submit_control_transfer(Transfer&) = 0;
|
|
virtual ErrorOr<size_t> submit_bulk_transfer(Transfer& transfer) = 0;
|
|
virtual ErrorOr<void> submit_async_interrupt_transfer(NonnullLockRefPtr<Transfer> transfer, u16 ms_interval) = 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>;
|
|
};
|
|
|
|
}
|