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42 lines
677 B
C
42 lines
677 B
C
/**
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* @file pic.h
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*
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* @author Freya Murphy <freya@freyacat.org>
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*
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* PIC functions
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*/
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#ifndef PIC_H_
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#define PIC_H_
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#define PIC_REMAP_OFFSET 0x20
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/**
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* Remaps the pie, i.e. initializes it
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*/
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void pic_remap(void);
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/**
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* Masks an external irq to stop firing until un masked
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* @param irq - the irq to mask
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*/
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void pic_mask(int irq);
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/**
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* Unmasks an external irq to allow interrupts to continue for that irq
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* @param irq - the irq to unmask
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*/
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void pic_unmask(int irq);
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/**
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* Disabled the pick
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*/
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void pic_disable(void);
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/**
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* Tells the pick that the interrupt has ended
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* @param irq - the irq that has ended
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*/
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void pic_eoi(int irq);
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#endif /* pic.h */
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