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Userland/Libraries: Add LibUSBDB library
Simple clone of LibPCIDB to support USB IDs instead of PCI ones. The format is basically identical, besides a few changes of the double tab fields.
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7 changed files with 338 additions and 2 deletions
86
Userland/Libraries/LibUSBDB/Database.h
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86
Userland/Libraries/LibUSBDB/Database.h
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@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/HashMap.h>
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#include <AK/MappedFile.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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namespace USBDB {
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struct Interface {
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u16 interface;
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StringView name;
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};
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struct Device {
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u16 id;
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StringView name;
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HashMap<int, NonnullOwnPtr<Interface>> interfaces;
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};
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struct Vendor {
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u16 id;
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StringView name;
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HashMap<int, NonnullOwnPtr<Device>> devices;
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};
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struct Protocol {
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u8 id { 0 };
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StringView name {};
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};
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struct Subclass {
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u8 id { 0 };
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StringView name {};
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HashMap<int, NonnullOwnPtr<Protocol>> protocols;
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};
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struct Class {
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u8 id { 0 };
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StringView name {};
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HashMap<int, NonnullOwnPtr<Subclass>> subclasses;
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};
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class Database : public RefCounted<Database> {
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public:
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static RefPtr<Database> open(const String& filename);
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static RefPtr<Database> open() { return open("/res/usb.ids"); };
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const StringView get_vendor(u16 vendor_id) const;
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const StringView get_device(u16 vendor_id, u16 device_id) const;
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const StringView get_interface(u16 vendor_id, u16 device_id, u16 interface_id) const;
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const StringView get_class(u8 class_id) const;
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const StringView get_subclass(u8 class_id, u8 subclass_id) const;
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const StringView get_protocol(u8 class_id, u8 subclass_id, u8 protocol_id) const;
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private:
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explicit Database(NonnullRefPtr<MappedFile> file)
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: m_file(move(file))
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{
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}
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int init();
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enum ParseMode {
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UnknownMode,
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VendorMode,
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ClassMode,
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};
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NonnullRefPtr<MappedFile> m_file;
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StringView m_view {};
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HashMap<int, NonnullOwnPtr<Vendor>> m_vendors;
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HashMap<int, NonnullOwnPtr<Class>> m_classes;
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bool m_ready { false };
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};
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}
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