/*      $NetBSD: intr.h,v 1.4 2021/09/24 08:07:40 skrll Exp $   */

/*
 * Copyright (c) 2001, 2003 Wasabi Systems, Inc.
 * All rights reserved.
 *
 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed for the NetBSD Project by
 *      Wasabi Systems, Inc.
 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _EPOC32_INTR_H_
#define _EPOC32_INTR_H_

#ifdef _KERNEL

/* Interrupt priority "levels". */
#define IPL_NONE        0       /* nothing */
#define IPL_SOFTCLOCK   1       /* timeouts */
#define IPL_SOFTBIO     2       /* block I/O */
#define IPL_SOFTNET     3       /* software network interrupt */
#define IPL_SOFTSERIAL  4       /* software serial interrupt */
#define IPL_VM          5       /* memory allocation */
#define IPL_SCHED       6       /* clock interrupt */
#define IPL_HIGH        7       /* everything */

#define NIPL            8

/* Interrupt sharing types. */
#define IST_NONE        0       /* none */
#define IST_PULSE       1       /* pulsed */
#define IST_EDGE        2       /* edge-triggered */
#define IST_LEVEL       3       /* level-triggered */

#define __NEWINTR       /* enables new hooks in cpu_fork()/cpu_switch() */

#define ARM_IRQ_HANDLER _C_LABEL(epoc32_irq_handler)

#ifndef _LOCORE

#include <sys/queue.h>

#define PIC_MAXSOURCES          16
#define PIC_MAXMAXSOURCES       16

#define _splraise       pic_splraise
#define _spllower       pic_spllower
#define splx            pic_splx

#include <arm/pic/picvar.h>

typedef uint8_t ipl_t;
typedef struct {
        ipl_t _ipl;
} ipl_cookie_t;

static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)
{

        return (ipl_cookie_t){._ipl = ipl};
}

static inline int
splraiseipl(ipl_cookie_t icookie)
{

        return _splraise(icookie._ipl);
}

#define spl0()          _spllower(IPL_NONE)

#include <sys/spl.h>

#endif /* ! _LOCORE */

#endif /* _KERNEL */

#endif  /* _EPOC32_INTR_H_ */