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https://github.com/RGBCube/serenity
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59fdeec7f5
Read the appropriate registers for RTL8139, RTL8168 and E1000. For NE2000 just assume 10mbit full duplex as there is no indicator for it in the pure NE2000 spec. Mock values for loopback.
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/*
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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/OwnPtr.h>
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#include <Kernel/Bus/PCI/Access.h>
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#include <Kernel/Bus/PCI/Device.h>
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#include <Kernel/IO.h>
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#include <Kernel/Net/NetworkAdapter.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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#define RTL8139_TX_BUFFER_COUNT 4
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class RTL8139NetworkAdapter final : public NetworkAdapter
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, public PCI::Device {
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public:
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static RefPtr<RTL8139NetworkAdapter> try_to_initialize(PCI::Address);
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virtual ~RTL8139NetworkAdapter() 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 i32 link_speed() override;
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virtual bool link_full_duplex() override;
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virtual StringView purpose() const override { return class_name(); }
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private:
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RTL8139NetworkAdapter(PCI::Address, u8 irq);
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virtual bool handle_irq(const RegisterState&) override;
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virtual StringView class_name() const override { return "RTL8139NetworkAdapter"sv; }
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void reset();
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void read_mac_address();
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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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void out32(u16 address, u32 data);
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u8 in8(u16 address);
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u16 in16(u16 address);
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u32 in32(u16 address);
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IOAddress m_io_base;
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u8 m_interrupt_line { 0 };
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OwnPtr<Region> m_rx_buffer;
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u16 m_rx_buffer_offset { 0 };
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Vector<OwnPtr<Region>> m_tx_buffers;
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u8 m_tx_next_buffer { 0 };
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OwnPtr<Region> m_packet_buffer;
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bool m_link_up { false };
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EntropySource m_entropy_source;
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};
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}
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