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