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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/HashMap.h>
#include <AK/MappedFile.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/StringView.h>
namespace PCIDB {
struct Subsystem {
u16 vendor_id;
u16 device_id;
StringView name;
};
struct Device {
u16 id;
StringView name;
HashMap<int, NonnullOwnPtr<Subsystem>> subsystems;
};
struct Vendor {
u16 id;
StringView name;
HashMap<int, NonnullOwnPtr<Device>> devices;
};
struct ProgrammingInterface {
u8 id { 0 };
StringView name {};
};
struct Subclass {
u8 id { 0 };
StringView name {};
HashMap<int, NonnullOwnPtr<ProgrammingInterface>> programming_interfaces;
};
struct Class {
u8 id { 0 };
StringView name {};
HashMap<int, NonnullOwnPtr<Subclass>> subclasses;
};
class Database : public RefCounted<Database> {
public:
static RefPtr<Database> open(const StringView& file_name);
static RefPtr<Database> open() { return open("/res/pci.ids"); };
const StringView get_vendor(u16 vendor_id) const;
const StringView get_device(u16 vendor_id, u16 device_id) const;
const StringView get_subsystem(u16 vendor_id, u16 device_id, u16 subvendor_id, u16 subdevice_id) const;
const StringView get_class(u8 class_id) const;
const StringView get_subclass(u8 class_id, u8 subclass_id) const;
const StringView get_programming_interface(u8 class_id, u8 subclass_id, u8 programming_interface_id) const;
private:
explicit Database(NonnullRefPtr<MappedFile> file)
: m_file(move(file))
{
}
int init();
enum ParseMode {
UnknownMode,
VendorMode,
ClassMode,
};
NonnullRefPtr<MappedFile> m_file;
StringView m_view {};
HashMap<int, NonnullOwnPtr<Vendor>> m_vendors;
HashMap<int, NonnullOwnPtr<Class>> m_classes;
bool m_ready { false };
};
}
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