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878d149ec9
This is done by issuing a ClearFeature(ENDPOINT_HALT) request. On xHCI, some extra steps are needed.
30 lines
777 B
C++
30 lines
777 B
C++
/*
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* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Bus/USB/USBController.h>
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#include <Kernel/Bus/USB/USBRequest.h>
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#include <Kernel/Devices/Storage/StorageManagement.h>
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namespace Kernel::USB {
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USBController::USBController()
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: m_storage_controller_id(StorageManagement::generate_controller_id())
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{
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}
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ErrorOr<void> USBController::reset_pipe(Device& device, Pipe& pipe)
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{
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if (pipe.type() == Pipe::Type::Control)
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return {};
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TRY(device.control_transfer(USB_REQUEST_TYPE_STANDARD | USB_REQUEST_RECIPIENT_ENDPOINT | USB_REQUEST_TRANSFER_DIRECTION_HOST_TO_DEVICE,
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USB_REQUEST_CLEAR_FEATURE, USB_FEATURE_ENDPOINT_HALT, pipe.endpoint_address(), 0, nullptr));
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return {};
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}
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}
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