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/*
* Copyright (c) 2010, 2011, 2019 Free Software Foundation, Inc.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* THE FREE SOFTWARE FOUNDATIONALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. THE FREE SOFTWARE FOUNDATION DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*/
#ifndef __INTR_H__
#define __INTR_H__
#ifndef MACH_XEN
#include <mach/kern_return.h>
#include <mach/port.h>
#include <kern/queue.h>
#include <ipc/ipc_port.h>
#include <device/conf.h>
#define DEVICE_NOTIFY_MSGH_SEQNO 0
#include <sys/types.h>
struct irqdev;
#include <machine/irq.h>
typedef struct {
queue_chain_t chain;
int interrupts; /* Number of interrupts occurred since last run of intr_thread */
int n_unacked; /* Number of times irqs were disabled for this */
ipc_port_t dst_port; /* Notification port */
int id; /* Mapping to machine dependent irq_t array elem */
} user_intr_t;
struct irqdev {
char *name;
void (*irqdev_ack)(struct irqdev *dev, int id);
queue_head_t *intr_queue;
int tot_num_intr; /* Total number of unprocessed interrupts */
/* Machine dependent */
irq_t irq[NINTR];
};
extern queue_head_t main_intr_queue;
extern int install_user_intr_handler (struct irqdev *dev, int id, unsigned long flags, user_intr_t *e);
extern int deliver_user_intr (struct irqdev *dev, int id, user_intr_t *e);
extern user_intr_t *insert_intr_entry (struct irqdev *dev, int id, ipc_port_t receive_port);
void intr_thread (void);
kern_return_t irq_acknowledge (ipc_port_t receive_port);
#endif /* MACH_XEN */
#endif
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