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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__
#include <device/device_types.h>
#include <kern/queue.h>
#include <device/notify.h>
typedef struct intr_entry
{
queue_chain_t chain;
ipc_port_t dest;
int line;
int interrupts; /* The number of interrupts occur since last run of intr_thread. */
int unacked_interrupts; /* Number of times irqs were disabled for this */
} user_intr_t;
#define DEVICE_NOTIFY_MSGH_SEQNO 0
int install_user_intr_handler (unsigned int line,
unsigned long flags,
user_intr_t *user_intr);
/* Returns 0 if action should be removed */
int deliver_user_intr (int line, user_intr_t *intr);
user_intr_t *insert_intr_entry (int line, ipc_port_t dest);
/* TODO: should rather take delivery port */
kern_return_t user_intr_enable (int line, char status);
void intr_thread (void);
void __disable_irq(unsigned int);
void __enable_irq(unsigned int);
#endif
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