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/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Vector.h>
#include <Kernel/Bus/PCI/Definitions.h>
#include <Kernel/FileSystem/SysFS.h>
namespace Kernel::PCI {
class PCIBusSysFSDirectory final : public SysFSDirectory {
public:
static void initialize();
private:
PCIBusSysFSDirectory();
};
class PCIDeviceSysFSDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<PCIDeviceSysFSDirectory> create(const SysFSDirectory&, Address);
const Address& address() const { return m_address; }
private:
PCIDeviceSysFSDirectory(const SysFSDirectory&, Address);
Address m_address;
};
class PCIDeviceAttributeSysFSComponent : public SysFSComponent {
public:
static NonnullRefPtr<PCIDeviceAttributeSysFSComponent> create(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
virtual ~PCIDeviceAttributeSysFSComponent() {};
protected:
ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
PCIDeviceAttributeSysFSComponent(String name, const PCIDeviceSysFSDirectory& device, PCI::RegisterOffset offset, size_t field_bytes_width);
NonnullRefPtr<PCIDeviceSysFSDirectory> m_device;
PCI::RegisterOffset m_offset;
size_t m_field_bytes_width;
};
}
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