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Kernel: Implement rtl8139 network interface driver

This commit is contained in:
Conrad Pankoff 2019-08-22 01:06:55 +10:00 committed by Andreas Kling
parent 286bafbb19
commit 4afe9e4f2a
5 changed files with 444 additions and 6 deletions

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#pragma once
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <Kernel/IRQHandler.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/PCI.h>
#define RTL8139_TX_BUFFER_COUNT 4
class RTL8139NetworkAdapter final : public NetworkAdapter
, public IRQHandler {
public:
static RTL8139NetworkAdapter* the();
static OwnPtr<RTL8139NetworkAdapter> autodetect();
RTL8139NetworkAdapter(PCI::Address, u8 irq);
virtual ~RTL8139NetworkAdapter() override;
virtual void send_raw(const u8*, int) override;
virtual bool link_up() const override { return m_link_up; }
private:
virtual void handle_irq() override;
virtual const char* class_name() const override { return "RTL8139NetworkAdapter"; }
void reset();
void read_mac_address();
void receive();
void out8(u16 address, u8 data);
void out16(u16 address, u16 data);
void out32(u16 address, u32 data);
u8 in8(u16 address);
u16 in16(u16 address);
u32 in32(u16 address);
PCI::Address m_pci_address;
u16 m_io_base { 0 };
u8 m_interrupt_line { 0 };
u32 m_rx_buffer_addr { 0 };
u16 m_rx_buffer_offset { 0 };
u32 m_tx_buffer_addr[RTL8139_TX_BUFFER_COUNT];
u8 m_tx_next_buffer { 0 };
u32 m_packet_buffer { 0 };
bool m_link_up { false };
};