1/*	$NetBSD: intr.h,v 1.4 2021/09/24 08:07:40 skrll Exp $	*/
  2
  3/*
  4 * Copyright (c) 2001, 2003 Wasabi Systems, Inc.
  5 * All rights reserved.
  6 *
  7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
  8 *
  9 * Redistribution and use in source and binary forms, with or without
 10 * modification, are permitted provided that the following conditions
 11 * are met:
 12 * 1. Redistributions of source code must retain the above copyright
 13 *    notice, this list of conditions and the following disclaimer.
 14 * 2. Redistributions in binary form must reproduce the above copyright
 15 *    notice, this list of conditions and the following disclaimer in the
 16 *    documentation and/or other materials provided with the distribution.
 17 * 3. All advertising materials mentioning features or use of this software
 18 *    must display the following acknowledgement:
 19 *	This product includes software developed for the NetBSD Project by
 20 *	Wasabi Systems, Inc.
 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 22 *    or promote products derived from this software without specific prior
 23 *    written permission.
 24 *
 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 35 * POSSIBILITY OF SUCH DAMAGE.
 36 */
 37
 38#ifndef	_EPOC32_INTR_H_
 39#define	_EPOC32_INTR_H_
 40
 41#ifdef _KERNEL
 42
 43/* Interrupt priority "levels". */
 44#define	IPL_NONE	0	/* nothing */
 45#define	IPL_SOFTCLOCK	1	/* timeouts */
 46#define	IPL_SOFTBIO	2	/* block I/O */
 47#define	IPL_SOFTNET	3	/* software network interrupt */
 48#define	IPL_SOFTSERIAL	4	/* software serial interrupt */
 49#define	IPL_VM		5	/* memory allocation */
 50#define	IPL_SCHED	6	/* clock interrupt */
 51#define	IPL_HIGH	7	/* everything */
 52
 53#define	NIPL		8
 54
 55/* Interrupt sharing types. */
 56#define	IST_NONE	0	/* none */
 57#define	IST_PULSE	1	/* pulsed */
 58#define	IST_EDGE	2	/* edge-triggered */
 59#define	IST_LEVEL	3	/* level-triggered */
 60
 61#define	__NEWINTR	/* enables new hooks in cpu_fork()/cpu_switch() */
 62
 63#define ARM_IRQ_HANDLER	_C_LABEL(epoc32_irq_handler)
 64
 65#ifndef _LOCORE
 66
 67#include <sys/queue.h>
 68
 69#define PIC_MAXSOURCES		16
 70#define PIC_MAXMAXSOURCES	16
 71
 72#define	_splraise	pic_splraise
 73#define	_spllower	pic_spllower
 74#define	splx		pic_splx
 75
 76#include <arm/pic/picvar.h>
 77
 78typedef uint8_t ipl_t;
 79typedef struct {
 80	ipl_t _ipl;
 81} ipl_cookie_t;
 82
 83static inline ipl_cookie_t
 84makeiplcookie(ipl_t ipl)
 85{
 86
 87	return (ipl_cookie_t){._ipl = ipl};
 88}
 89
 90static inline int
 91splraiseipl(ipl_cookie_t icookie)
 92{
 93
 94	return _splraise(icookie._ipl);
 95}
 96
 97#define	spl0()		_spllower(IPL_NONE)
 98
 99#include <sys/spl.h>
100
101#endif /* ! _LOCORE */
102
103#endif /* _KERNEL */
104
105#endif	/* _EPOC32_INTR_H_ */