34 lines
660 B
C++
34 lines
660 B
C++
#include <BAN/Errors.h>
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#include <kernel/InterruptController.h>
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#include <kernel/APIC.h>
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#include <kernel/PIC.h>
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static InterruptController* s_instance = nullptr;
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InterruptController& InterruptController::get()
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{
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ASSERT(s_instance);
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return *s_instance;
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}
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void InterruptController::initialize(bool force_pic)
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{
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ASSERT(s_instance == nullptr);
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PIC::mask_all();
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PIC::remap();
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if (!force_pic)
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s_instance = APIC::create();
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if (s_instance)
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return;
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dprintln("Using PIC instead of APIC");
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s_instance = PIC::create();
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}
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bool interrupts_enabled()
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{
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uintptr_t flags;
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asm volatile("pushf; pop %0" : "=r"(flags) :: "memory");
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return flags & (1 << 9);
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} |