mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 02:08:12 +03:00
11eee67b85
Until now, our kernel has reimplemented a number of AK classes to provide automatic internal locking: - RefPtr - NonnullRefPtr - WeakPtr - Weakable This patch renames the Kernel classes so that they can coexist with the original AK classes: - RefPtr => LockRefPtr - NonnullRefPtr => NonnullLockRefPtr - WeakPtr => LockWeakPtr - Weakable => LockWeakable The goal here is to eventually get rid of the Lock* classes in favor of using external locking.
83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2021, Kyle Pereira <hey@xylepereira.me>
|
|
* Copyright (c) 2021, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <Kernel/Bus/VirtIO/ConsolePort.h>
|
|
#include <Kernel/Bus/VirtIO/Device.h>
|
|
#include <Kernel/Memory/RingBuffer.h>
|
|
|
|
namespace Kernel::VirtIO {
|
|
class Console
|
|
: public VirtIO::Device
|
|
, public AtomicRefCounted<Console> {
|
|
friend VirtIO::ConsolePort;
|
|
|
|
public:
|
|
static NonnullLockRefPtr<Console> must_create(PCI::DeviceIdentifier const&);
|
|
virtual ~Console() override = default;
|
|
|
|
virtual StringView purpose() const override { return class_name(); }
|
|
|
|
unsigned device_id() const
|
|
{
|
|
return m_device_id;
|
|
}
|
|
|
|
virtual void initialize() override;
|
|
|
|
private:
|
|
virtual StringView class_name() const override { return "VirtIOConsole"sv; }
|
|
explicit Console(PCI::DeviceIdentifier const&);
|
|
enum class ControlEvent : u16 {
|
|
DeviceReady = 0,
|
|
DeviceAdd = 1,
|
|
PortReady = 3,
|
|
ConsolePort = 4,
|
|
PortOpen = 6,
|
|
};
|
|
struct [[gnu::packed]] ControlMessage {
|
|
u32 id;
|
|
u16 event;
|
|
u16 value;
|
|
|
|
enum class Status : u16 {
|
|
Success = 1,
|
|
Failure = 0
|
|
};
|
|
|
|
enum class PortStatus : u16 {
|
|
Open = 1,
|
|
Close = 0
|
|
};
|
|
};
|
|
|
|
constexpr static u16 CONTROL_RECEIVEQ = 2;
|
|
constexpr static u16 CONTROL_TRANSMITQ = 3;
|
|
constexpr static size_t CONTROL_MESSAGE_SIZE = sizeof(ControlMessage);
|
|
constexpr static size_t CONTROL_BUFFER_SIZE = CONTROL_MESSAGE_SIZE * 32;
|
|
|
|
virtual bool handle_device_config_change() override;
|
|
virtual void handle_queue_update(u16 queue_index) override;
|
|
|
|
Vector<LockRefPtr<ConsolePort>> m_ports;
|
|
void setup_multiport();
|
|
void process_control_message(ControlMessage message);
|
|
void write_control_message(ControlMessage message);
|
|
void send_open_control_message(unsigned port_number, bool open);
|
|
|
|
unsigned m_device_id;
|
|
|
|
OwnPtr<Memory::RingBuffer> m_control_transmit_buffer;
|
|
OwnPtr<Memory::RingBuffer> m_control_receive_buffer;
|
|
|
|
WaitQueue m_control_wait_queue;
|
|
|
|
static unsigned next_device_id;
|
|
};
|
|
}
|