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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2014 Garrett D'Amore <garrett@damore.org>
* Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _SYS_AVINTR_H
#define _SYS_AVINTR_H
#include <sys/mutex.h>
#include <sys/dditypes.h>
#include <sys/ddi_intr.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Period of autovector structures (add this in to get the next level).
*/
#define MAXIPL 16
#define INT_IPL(x) (x)
#define AV_INT_SPURIOUS -1
typedef uint_t (*avfunc)(caddr_t, caddr_t);
struct autovec {
/*
* Interrupt handler and argument to pass to it.
*/
struct autovec *av_link; /* pointer to next on in chain */
uint_t (*av_vector)();
caddr_t av_intarg1;
caddr_t av_intarg2;
uint64_t *av_ticksp;
uint_t av_prilevel; /* priority level */
/*
* Interrupt handle/id (like intrspec structure pointer) used to
* identify a specific instance of interrupt handler in case we
* have to remove the interrupt handler later.
*
*/
void *av_intr_id;
dev_info_t *av_dip;
ushort_t av_flags; /* pending flags */
struct autovec *av_ipl_link; /* pointer to next on ipl chain */
};
#define AV_PENTRY_VECTMASK 0xff /* low 8 bit used for irqno */
#define AV_PENTRY_PEND 0x100 /* pending hardware interrupt */
#define AV_PENTRY_ONPROC 0x200 /* being serviced by CPU */
#define AV_PENTRY_LEVEL 0x8000 /* level-triggered interrupt */
struct av_head {
struct autovec *avh_link;
ushort_t avh_hi_pri;
ushort_t avh_lo_pri;
};
/* softing contains a bit field of software interrupts which are pending */
struct softint {
int st_pending;
};
#ifdef _KERNEL
extern kmutex_t av_lock;
extern ddi_softint_hdl_impl_t softlevel_hdl[];
extern ddi_softint_hdl_impl_t softlevel1_hdl;
extern int add_avintr(void *intr_id, int lvl, avfunc xxintr, char *name,
int vect, caddr_t arg1, caddr_t arg2, uint64_t *, dev_info_t *);
extern int add_nmintr(int lvl, avfunc nmintr, char *name, caddr_t arg);
extern int add_avsoftintr(void *intr_id, int lvl, avfunc xxintr,
char *name, caddr_t arg1, caddr_t arg2);
extern int rem_avsoftintr(void *intr_id, int lvl, avfunc xxintr);
extern int av_softint_movepri(void *intr_id, int old_lvl);
extern void update_avsoftintr_args(void *intr_id, int lvl, caddr_t arg2);
extern void rem_avintr(void *intr_id, int lvl, avfunc xxintr, int vect);
extern void wait_till_seen(int ipl);
extern uint_t softlevel1(caddr_t, caddr_t);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AVINTR_H */
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