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1c94b5e8eb
Instead of initializing network adapters in init.cpp, let's move that logic into a separate class to handle this. Also, it seems like a good idea to shift responsiblity on enumeration of network adapters after the boot process, so this singleton will take care of finding the appropriate network adapter when asked to with an IPv4 address or interface name. With this change being merged, we simplify the creation logic of NetworkAdapter derived classes, so we enumerate the PCI bus only once, searching for driver candidates when doing so, and we let each driver to test if it is resposible for the specified PCI device.
59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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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/OwnPtr.h>
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#include <Kernel/IO.h>
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#include <Kernel/Net/NetworkAdapter.h>
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#include <Kernel/PCI/Access.h>
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#include <Kernel/PCI/Device.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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class NE2000NetworkAdapter final : public NetworkAdapter
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, public PCI::Device {
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public:
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static RefPtr<NE2000NetworkAdapter> try_to_initialize(PCI::Address);
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virtual ~NE2000NetworkAdapter() override;
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virtual void send_raw(ReadonlyBytes) override;
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virtual bool link_up() override { return m_link_up; }
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virtual const char* purpose() const override { return class_name(); }
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private:
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NE2000NetworkAdapter(PCI::Address, u8 irq);
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virtual void handle_irq(const RegisterState&) override;
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virtual const char* class_name() const override { return "NE2000NetworkAdapter"; }
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int ram_test();
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void reset();
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void rdma_read(size_t address, Bytes payload);
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void rdma_write(size_t address, ReadonlyBytes payload);
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void receive();
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void out8(u16 address, u8 data);
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void out16(u16 address, u16 data);
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u8 in8(u16 address);
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u16 in16(u16 address);
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IOAddress m_io_base;
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int m_ring_read_ptr;
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u8 m_interrupt_line { 0 };
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bool m_link_up { false };
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MACAddress m_mac_address;
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EntropySource m_entropy_source;
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WaitQueue m_wait_queue;
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};
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}
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