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Kernel: Absorb LibBareMetal back into the kernel

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This was supposed to be the foundation for some kind of pre-kernel
environment, but nobody is working on it right now, so let's move
everything back into the kernel and remove all the confusion.
This commit is contained in:
Andreas Kling 2020-05-16 12:00:04 +02:00
parent c12cfdea87
commit 21d5f4ada1
75 changed files with 140 additions and 203 deletions
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67
Kernel/Console.h Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* 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/CircularQueue.h>
#include <AK/Vector.h>
#include <Kernel/Devices/CharacterDevice.h>
class ConsoleImplementation {
public:
virtual ~ConsoleImplementation();
virtual void on_sysconsole_receive(u8) = 0;
};
class Console final : public Kernel::CharacterDevice {
AK_MAKE_ETERNAL
public:
static Console& the();
static bool is_initialized();
Console();
virtual ~Console() override;
// ^CharacterDevice
virtual bool can_read(const Kernel::FileDescription&, size_t) const override;
virtual bool can_write(const Kernel::FileDescription&, size_t) const override { return true; }
virtual ssize_t read(Kernel::FileDescription&, size_t, u8*, ssize_t) override;
virtual ssize_t write(Kernel::FileDescription&, size_t, const u8*, ssize_t) override;
virtual const char* class_name() const override { return "Console"; }
void set_implementation(ConsoleImplementation* implementation)
{
m_implementation = implementation;
}
void put_char(char);
const CircularQueue<char, 16384>& logbuffer() const { return m_logbuffer; }
private:
ConsoleImplementation* m_implementation { nullptr };
CircularQueue<char, 16384> m_logbuffer;
};