u-boot/arch/microblaze/include/asm/microblaze_intc.h
Michal Simek 8706908a25 microblaze: intc: Registering interrupt should return value
Return value to find out if un/registration was succesful.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-09-11 09:24:57 +02:00

55 lines
1.8 KiB
C

/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.cz>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
typedef volatile struct microblaze_intc_t {
int isr; /* interrupt status register */
int ipr; /* interrupt pending register */
int ier; /* interrupt enable register */
int iar; /* interrupt acknowledge register */
int sie; /* set interrupt enable bits */
int cie; /* clear interrupt enable bits */
int ivr; /* interrupt vector register */
int mer; /* master enable register */
} microblaze_intc_t;
struct irq_action {
interrupt_handler_t *handler; /* pointer to interrupt rutine */
void *arg;
int count; /* number of interrupt */
};
/**
* Register and unregister interrupt handler rutines
*
* @param irq IRQ number
* @param hdlr Interrupt handler rutine
* @param arg Pointer to argument which is passed to int. handler rutine
* @return 0 if registration pass, 1 if unregistration pass,
* or an error code < 0 otherwise
*/
int install_interrupt_handler(int irq, interrupt_handler_t *hdlr,
void *arg);
int interrupts_init(void);