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/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/Bus/PCI/Device.h>
#include <Kernel/IO.h>
#include <Kernel/Interrupts/IRQHandler.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/Random.h>
namespace Kernel {
class NE2000NetworkAdapter final : public NetworkAdapter
, public PCI::Device
, public IRQHandler {
public:
static RefPtr<NE2000NetworkAdapter> try_to_initialize(PCI::Address);
virtual ~NE2000NetworkAdapter() override;
virtual void send_raw(ReadonlyBytes) override;
virtual bool link_up() override
{
// Pure NE2000 doesn't seem to have a link status indicator, so
// just assume that it's up.
return true;
}
virtual i32 link_speed()
{
// Can only do 10mbit..
return 10;
}
virtual bool link_full_duplex() { return true; }
virtual StringView purpose() const override { return class_name(); }
private:
NE2000NetworkAdapter(PCI::Address, u8 irq);
virtual bool handle_irq(const RegisterState&) override;
virtual StringView class_name() const override { return "NE2000NetworkAdapter"sv; }
int ram_test();
void reset();
void rdma_read(size_t address, Bytes payload);
void rdma_write(size_t address, ReadonlyBytes payload);
void receive();
void out8(u16 address, u8 data);
void out16(u16 address, u16 data);
u8 in8(u16 address);
u16 in16(u16 address);
IOAddress m_io_base;
int m_ring_read_ptr;
u8 m_interrupt_line { 0 };
MACAddress m_mac_address;
EntropySource m_entropy_source;
WaitQueue m_wait_queue;
};
}
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