55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
#ifndef __HW_INTR_X86_H__
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#define __HW_INTR_X86_H__
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#include "kernel/kernel.h"
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void irq_8259_unmask(int irq);
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void irq_8259_mask(int irq);
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void irq_8259_eoi(int irq);
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void irq_handle(int irq);
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void i8259_disable(void);
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void eoi_8259_master(void);
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void eoi_8259_slave(void);
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/*
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* we don't use IO APIC if not configured for SMP as we cannot read any info
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* about it unless we use MPS which is not present on all single CPU
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* configurations. ACPI would be another option, however we don't support it
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* either
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*/
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#if defined(USE_APIC)
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#include "arch/i386/apic.h"
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#define hw_intr_mask(irq) ioapic_mask_irq(irq)
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#define hw_intr_unmask(irq) ioapic_unmask_irq(irq)
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#define hw_intr_ack(irq) ioapic_eoi(irq)
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#define hw_intr_used(irq) do { \
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if (ioapic_enabled) \
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ioapic_set_irq(irq); \
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} while (0)
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#define hw_intr_not_used(irq) do { \
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if (ioapic_enabled) \
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ioapic_unset_irq(irq); \
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} while (0)
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#define hw_intr_disable_all() do { \
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ioapic_disable_all(); \
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ioapic_reset_pic(); \
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lapic_disable(); \
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} while (0)
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#ifdef CONFIG_SMP
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#define ipi_ack apic_eoi
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#endif
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#else
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/* legacy PIC */
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#define hw_intr_mask(irq) irq_8259_mask(irq)
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#define hw_intr_unmask(irq) irq_8259_unmask(irq)
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#define hw_intr_ack(irq) irq_8259_eoi(irq)
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#define hw_intr_used(irq)
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#define hw_intr_not_used(irq)
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#define hw_intr_disable_all()
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#endif
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#endif /* __HW_INTR_X86_H__ */
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