1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2007 Michal Simek
4  *
5  * Michal  SIMEK <monstr@monstr.cz>
6  */
7 
8 #include <irq_func.h>
9 
10 typedef volatile struct microblaze_intc_t {
11 	int isr; /* interrupt status register */
12 	int ipr; /* interrupt pending register */
13 	int ier; /* interrupt enable register */
14 	int iar; /* interrupt acknowledge register */
15 	int sie; /* set interrupt enable bits */
16 	int cie; /* clear interrupt enable bits */
17 	int ivr; /* interrupt vector register */
18 	int mer; /* master enable register */
19 } microblaze_intc_t;
20 
21 struct irq_action {
22 	interrupt_handler_t *handler; /* pointer to interrupt rutine */
23 	void *arg;
24 	int count; /* number of interrupt */
25 };
26 
27 /**
28  * Register and unregister interrupt handler rutines
29  *
30  * @param irq	IRQ number
31  * @param hdlr	Interrupt handler rutine
32  * @param arg	Pointer to argument which is passed to int. handler rutine
33  * @return	0 if registration pass, 1 if unregistration pass,
34  *		or an error code < 0 otherwise
35  */
36 int install_interrupt_handler(int irq, interrupt_handler_t *hdlr,
37 				       void *arg);
38