xref: /src/sys/arch/epoc32/include/intr.h

/*	$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_ */