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583e9ad372
Instead of making each driver to enumerate the PCI bus itself, PCI::Initializer will call detect_devices() to do one enumeration of the bus.
73 lines
2.6 KiB
C++
73 lines
2.6 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/IRQHandler.h>
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#include <Kernel/Net/NetworkAdapter.h>
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#include <Kernel/PCI/Access.h>
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#define RTL8139_TX_BUFFER_COUNT 4
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class RTL8139NetworkAdapter final : public NetworkAdapter
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, public IRQHandler {
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public:
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static void detect(const PCI::Address&);
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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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private:
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virtual void handle_irq() 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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PCI::Address m_pci_address;
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u16 m_io_base { 0 };
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u8 m_interrupt_line { 0 };
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u32 m_rx_buffer_addr { 0 };
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u16 m_rx_buffer_offset { 0 };
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u32 m_tx_buffer_addr[RTL8139_TX_BUFFER_COUNT];
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u8 m_tx_next_buffer { 0 };
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u32 m_packet_buffer { 0 };
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bool m_link_up { false };
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};
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