mirror of
https://github.com/SerenityOS/serenity
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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
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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#pragma once
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#include <AK/AtomicRefCounted.h>
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#include <AK/Error.h>
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#include <Kernel/Bus/USB/USBDevice.h>
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#include <Kernel/Bus/USB/USBTransfer.h>
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namespace Kernel::USB {
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class USBController : public AtomicRefCounted<USBController> {
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public:
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virtual ~USBController() = default;
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virtual ErrorOr<void> initialize() = 0;
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virtual ErrorOr<void> reset() = 0;
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virtual ErrorOr<void> stop() = 0;
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virtual ErrorOr<void> start() = 0;
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virtual void cancel_async_transfer(NonnullLockRefPtr<Transfer> transfer) = 0;
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virtual ErrorOr<size_t> submit_control_transfer(Transfer&) = 0;
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virtual ErrorOr<size_t> submit_bulk_transfer(Transfer& transfer) = 0;
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virtual ErrorOr<void> submit_async_interrupt_transfer(NonnullLockRefPtr<Transfer> transfer, u16 ms_interval) = 0;
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u32 storage_controller_id() const { return m_storage_controller_id; }
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u8 allocate_address();
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protected:
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USBController();
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private:
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// Note: We are pseudo storage controller for the sake of generating LUNs
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// And do not follow a hardware_relative_controller_id for the controller class "USB",
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// as we also have to follow the device id and its internal LUN, leaving no room for that
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u32 m_storage_controller_id { 0 };
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u8 m_next_device_index { 1 };
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IntrusiveListNode<USBController, NonnullLockRefPtr<USBController>> m_controller_list_node;
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public:
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using List = IntrusiveList<&USBController::m_controller_list_node>;
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};
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}
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