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/*
* Copyright (c) 2021, the SerenityOS developers
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/OwnPtr.h>
#include <Kernel/IO.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/PCI/Access.h>
#include <Kernel/PCI/Device.h>
#include <Kernel/Random.h>
namespace Kernel {
class NE2000NetworkAdapter final : public NetworkAdapter
, public PCI::Device {
public:
static void detect();
NE2000NetworkAdapter(PCI::Address, u8 irq);
virtual ~NE2000NetworkAdapter() override;
virtual void send_raw(ReadonlyBytes) override;
virtual bool link_up() override { return m_link_up; }
virtual const char* purpose() const override { return class_name(); }
private:
virtual void handle_irq(const RegisterState&) override;
virtual const char* class_name() const override { return "NE2000NetworkAdapter"; }
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 };
bool m_link_up { false };
MACAddress m_mac_address;
EntropySource m_entropy_source;
WaitQueue m_wait_queue;
};
}
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