Kernel: Delete unnecessary files

Kernel/Devices/HardwareTimer.cpp

@@ -1,41 +0,0 @@
-/*
- * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
- * 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.
- */
-
-#include <Kernel/Devices/HardwareTimer.h>
-
-namespace Kernel {
-
-HardwareTimer::HardwareTimer(u8 irq_number)
-    : IRQHandler(irq_number)
-    , m_seconds_since_boot(0)
-{
-}
-
-u32 HardwareTimer::seconds_since_boot()
-{
-    return m_seconds_since_boot;
-}
-}

Kernel/Devices/HardwareTimer.h

@@ -1,39 +0,0 @@
-/*
- * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
- * 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/String.h>
-#include <Kernel/Interrupts/IRQHandler.h>
-namespace Kernel {
-class HardwareTimer : public IRQHandler {
-public:
-    u32 seconds_since_boot();
-protected:
-    HardwareTimer(u8 irq_number);
-    u32 m_seconds_since_boot { 0 };
-};
-}

Kernel/Devices/PIT.cpp

@@ -1,95 +0,0 @@
-/*
- * 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.
- */
-
-#include <Kernel/Arch/i386/CPU.h>
-#include <Kernel/Devices/PIT.h>
-#include <Kernel/Interrupts/PIC.h>
-#include <Kernel/Scheduler.h>
-#include <Kernel/Thread.h>
-#include <LibBareMetal/IO.h>
-
-#define IRQ_TIMER 0
-namespace Kernel {
-
-//#define PIT_DEBUG
-
-static PIT* s_the;
-
-void PIT::initialize()
-{
-    if (s_the == nullptr) {
-        s_the = new PIT();
-    }
-}
-
-PIT& PIT::the()
-{
-    ASSERT(s_the != nullptr);
-    return *s_the;
-}
-
-inline static void reset_countdown(u16 timer_reload)
-{
-    IO::out8(PIT_CTL, TIMER0_SELECT | WRITE_WORD | MODE_COUNTDOWN);
-    IO::out8(TIMER0_CTL, LSB(timer_reload));
-    IO::out8(TIMER0_CTL, MSB(timer_reload));
-}
-
-void PIT::handle_irq(RegisterState& regs)
-{
-#ifdef PIT_DEBUG
-    dbg() << "PIT: Debugging Interrupt.";
-#endif
-    if (++m_ticks_this_second >= TICKS_PER_SECOND) {
-        // FIXME: Synchronize with the RTC somehow to prevent drifting apart.
-        ++m_seconds_since_boot;
-        m_ticks_this_second = 0;
-    }
-    Scheduler::timer_tick(regs);
-}
-
-u32 PIT::ticks_this_second() const
-{
-    return m_ticks_this_second;
-}
-
-PIT::PIT()
-    : HardwareTimer(IRQ_TIMER)
-    , m_default_timer_reload(BASE_FREQUENCY / TICKS_PER_SECOND)
-    , m_ticks_this_second(0)
-{
-
-    IO::out8(PIT_CTL, TIMER0_SELECT | WRITE_WORD | MODE_SQUARE_WAVE);
-
-    klog() << "PIT: " << TICKS_PER_SECOND << " Hz, square wave (" << String::format("%x", m_default_timer_reload) << ")";
-
-    IO::out8(TIMER0_CTL, LSB(m_default_timer_reload));
-    IO::out8(TIMER0_CTL, MSB(m_default_timer_reload));
-
-    enable_irq();
-}
-
-}

Kernel/Devices/PIT.h

@@ -1,72 +0,0 @@
-/*
- * 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/Types.h>
-#include <Kernel/Devices/HardwareTimer.h>
-
-namespace Kernel {
-
-#define TICKS_PER_SECOND 1000
-/* Timer related ports */
-#define TIMER0_CTL 0x40
-#define TIMER1_CTL 0x41
-#define TIMER2_CTL 0x42
-#define PIT_CTL 0x43
-
-/* Building blocks for PIT_CTL */
-#define TIMER0_SELECT 0x00
-#define TIMER1_SELECT 0x40
-#define TIMER2_SELECT 0x80
-
-#define MODE_COUNTDOWN 0x00
-#define MODE_ONESHOT 0x02
-#define MODE_RATE 0x04
-#define MODE_SQUARE_WAVE 0x06
-
-#define WRITE_WORD 0x30
-
-#define BASE_FREQUENCY 1193182
-
-class PIT : public HardwareTimer {
-public:
-    static void initialize();
-    static PIT& the();
-    u32 ticks_this_second() const;
-
-    virtual const char* purpose() const override { return "System Timer"; }
-
-private:
-    PIT();
-    // ^IRQHandler
-    virtual void handle_irq(RegisterState& regs) override;
-
-    u16 m_default_timer_reload;
-    u16 m_variable_timer_reload;
-    u32 m_ticks_this_second;
-};
-}