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b97a00d4b1
The `#pragma GCC diagnostic` part is needed because the class has virtual methods with the same name but different arguments, and Clang tries to warn us that we are not actually overriding anything with these. Weirdly enough, GCC does not seem to care.
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullRefPtr.h>
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#include <AK/Types.h>
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#include <Kernel/Interrupts/GenericInterruptHandler.h>
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#include <Kernel/Time/HardwareTimer.h>
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namespace Kernel {
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class APICTimer final : public HardwareTimer<GenericInterruptHandler> {
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public:
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static APICTimer* initialize(u8, HardwareTimerBase&);
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virtual HardwareTimerType timer_type() const override { return HardwareTimerType::LocalAPICTimer; }
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virtual const char* model() const override { return "LocalAPIC"; }
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virtual size_t ticks_per_second() const override;
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virtual bool is_periodic() const override { return m_timer_mode == APIC::TimerMode::Periodic; }
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virtual bool is_periodic_capable() const override { return true; }
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virtual void set_periodic() override;
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virtual void set_non_periodic() override;
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virtual void disable() override { }
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virtual void reset_to_default_ticks_per_second() override;
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virtual bool try_to_set_frequency(size_t frequency) override;
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virtual bool is_capable_of_frequency(size_t frequency) const override;
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virtual size_t calculate_nearest_possible_frequency(size_t frequency) const override;
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void will_be_destroyed() override { HardwareTimer<GenericInterruptHandler>::will_be_destroyed(); }
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void enable_local_timer();
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void disable_local_timer();
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private:
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explicit APICTimer(u8, Function<void(const RegisterState&)>);
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bool calibrate(HardwareTimerBase&);
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u32 m_timer_period { 0 };
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APIC::TimerMode m_timer_mode { APIC::TimerMode::Periodic };
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};
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}
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