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300dcb6f5e
This creates all interfaces when the device is enumerated, with a link to the configuration that it is a part of. As such, a new class, `USBInterface` has been introduced to express this state.
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*
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* Copyright (c) 2022, Jesse Buhagiar <jesse.buhagiar@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/Vector.h>
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#include <Kernel/Bus/USB/USBDescriptors.h>
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#include <Kernel/Bus/USB/USBDevice.h>
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#include <Kernel/Bus/USB/USBInterface.h>
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namespace Kernel::USB {
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class Device;
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class USBConfiguration {
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public:
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USBConfiguration() = delete;
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USBConfiguration(Device& device, USBConfigurationDescriptor const descriptor)
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: m_device(device)
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, m_descriptor(descriptor)
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{
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m_interfaces.ensure_capacity(descriptor.number_of_interfaces);
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}
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Device const& device() const { return m_device; }
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USBConfigurationDescriptor const& descriptor() const { return m_descriptor; }
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u8 interface_count() const { return m_descriptor.number_of_interfaces; }
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u8 configuration_id() const { return m_descriptor.configuration_value; }
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u8 attributes() const { return m_descriptor.attributes_bitmap; }
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u16 max_power_ma() const { return m_descriptor.max_power_in_ma * 2u; } // Note: "Power" is used incorrectly here, however it's what it's called in the descriptor/documentation
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ErrorOr<void> get_interfaces();
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private:
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Device& m_device; // Reference to the device linked to this configuration
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USBConfigurationDescriptor const m_descriptor; // Descriptor that backs this configuration
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Vector<USBInterface> m_interfaces; // Interfaces for this device
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};
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}
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