mirror of
https://github.com/RGBCube/serenity
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ea58563970
This commit is one step forward for pluggable driver modules. Instead of creating instances of network adapter classes, we let their detect() methods to figure out if there are existing devices to initialize.
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/OwnPtr.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 <LibBareMetal/IO.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 void detect();
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RTL8139NetworkAdapter(PCI::Address, u8 irq);
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virtual ~RTL8139NetworkAdapter() override;
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virtual void send_raw(const u8*, size_t) 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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virtual void handle_irq(const RegisterState&) override;
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virtual const char* class_name() const override { return "RTL8139NetworkAdapter"; }
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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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};
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}
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