/usr/include/xenomai/nucleus/intr.h is in libxenomai-dev 2.6.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @note Copyright (C) 2001,2002,2003 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai 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.
*
* Xenomai 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 Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* \ingroup intr
*/
#ifndef _XENO_NUCLEUS_INTR_H
#define _XENO_NUCLEUS_INTR_H
/* Possible return values of ISR. */
#define XN_ISR_NONE 0x1
#define XN_ISR_HANDLED 0x2
/* Additional bits. */
#define XN_ISR_PROPAGATE 0x100
#define XN_ISR_NOENABLE 0x200
#define XN_ISR_BITMASK (~0xff)
/* Creation flags. */
#define XN_ISR_SHARED 0x1
#define XN_ISR_EDGE 0x2
/* Operational flags. */
#define XN_ISR_ATTACHED 0x10000
#if defined(__KERNEL__) || defined(__XENO_SIM__)
#include <nucleus/types.h>
#include <nucleus/stat.h>
struct xnsched;
typedef struct xnintr {
#ifdef CONFIG_XENO_OPT_SHIRQ
struct xnintr *next; /* !< Next object in the IRQ-sharing chain. */
#endif /* CONFIG_XENO_OPT_SHIRQ */
unsigned unhandled; /* !< Number of consequent unhandled interrupts */
xnisr_t isr; /* !< Interrupt service routine. */
void *cookie; /* !< User-defined cookie value. */
xnflags_t flags; /* !< Creation flags. */
unsigned irq; /* !< IRQ number. */
xniack_t iack; /* !< Interrupt acknowledge routine. */
const char *name; /* !< Symbolic name. */
struct {
xnstat_counter_t hits; /* !< Number of handled receipts since attachment. */
xnstat_exectime_t account; /* !< Runtime accounting entity */
xnstat_exectime_t sum; /* !< Accumulated accounting entity */
} stat[XNARCH_NR_CPUS];
} xnintr_t;
typedef struct xnintr_iterator {
int cpu; /* !< Current CPU in iteration. */
unsigned long hits; /* !< Current hit counter. */
xnticks_t exectime_period; /* !< Used CPU time in current accounting period. */
xnticks_t account_period; /* !< Length of accounting period. */
xnticks_t exectime_total; /* !< Overall CPU time consumed. */
int list_rev; /* !< System-wide xnintr list revision (internal use). */
xnintr_t *prev; /* !< Previously visited xnintr object (internal use). */
} xnintr_iterator_t;
extern xnintr_t nkclock;
#ifdef __cplusplus
extern "C" {
#endif
int xnintr_mount(void);
void xnintr_clock_handler(void);
void xnintr_host_tick(struct xnsched *sched);
void xnintr_init_proc(void);
void xnintr_cleanup_proc(void);
/* Public interface. */
int xnintr_init(xnintr_t *intr,
const char *name,
unsigned irq,
xnisr_t isr,
xniack_t iack,
xnflags_t flags);
int xnintr_destroy(xnintr_t *intr);
int xnintr_attach(xnintr_t *intr,
void *cookie);
int xnintr_detach(xnintr_t *intr);
int xnintr_enable(xnintr_t *intr);
int xnintr_disable(xnintr_t *intr);
void xnintr_affinity(xnintr_t *intr,
xnarch_cpumask_t cpumask);
int xnintr_query_init(xnintr_iterator_t *iterator);
int xnintr_query_next(int irq, xnintr_iterator_t *iterator,
char *name_buf);
#ifdef __cplusplus
}
#endif
#endif /* __KERNEL__ || __XENO_SIM__ */
#endif /* !_XENO_NUCLEUS_INTR_H */
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