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45 lines
1.2 KiB
45 lines
1.2 KiB
//
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// Created by MightyPork on 2018/01/14.
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//
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// Provides a trampoline system for redirecting IRQ calls to assigned callbacks.
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//
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#ifndef GEX_CORE_IRQ_DISPATCHER_H
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#define GEX_CORE_IRQ_DISPATCHER_H
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// Dummy peripherals for use with the
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extern void * const EXTIS[16];
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/**
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* Initialize the interrupt dispatcher
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*/
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void irqd_init(void);
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/** Typedef for a IRQ callback run by the dispatcher */
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typedef void (*IrqCallback)(void*);
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/**
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* Attach a callback to a IRQ handler.
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* Pass NULL to remove the handler.
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*
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* NOTE: The handler is responsible for clearing any interrupt status flags.
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* NOTE: It is not guaranteed that the particular peripheral caused the interrupt when
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* the function is called; some interrupt vectors are shared. Make sure to check the flags.
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*
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* @param periph - peripheral we're attaching to
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* @param callback - callback to fire on IRQ
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* @param data - data passed to the callback (user context)
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*/
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void irqd_attach(void *periph, IrqCallback callback, void *data);
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/**
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* Remove a callback
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*
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* @param periph - peripheral we're attaching to
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* @param callback - callback to remove, if it doesn't match, do nothing
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* @return the arg, if any
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*/
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void* irqd_detach(void *periph, IrqCallback callback);
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#endif //GEX_CORE_IRQ_DISPATCHER_H
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