#pragma once

#include <lcrash/types.h>

/**
 * A specific IRQ gate
 * \internal
 */
struct IrqHandlerGate; 

/**
 * A hook called on an interrupt
 */
struct IrqHandlerHook {
	/// Higher priority values called first
	u32 Priority;

	/**
	 * The hook itself.
	 *
	 * \return  1 to cancel uncalled hooks
	 *          0 on success
	 *         -1 on failure
	 */
	s32 (*HookCall)();

	/**
	 * Next hook
	 * \internal
	 */
	struct IrqHandlerHook* Next;

	/**
	 * Attached gate
	 * \internal
	 */
	struct IrqHandlerGate* Gate;
};

/**
 * Initialize the IRQ handler
 *
 * \return 0 on success
 */
s32 IrqHandlerInitialize();

/**
 * Hook an interrupt
 *
 * \return 0 on success
 */
s32 IrqHandlerAttach(u8 Gate, struct IrqHandlerHook* Hook);

/**
 * Remove a hook
 *
 * \return 0 on success
 */
s32 IrqHandlerDetach(struct IrqHandlerHook* Hook);

void IrqHandlerDisableInterrupts();
void IrqHandlerEnableInterrupts();