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/* $NetBSD: intr.h,v 1.22 2021/06/05 21:24:17 christos Exp $ */
/*
* Copyright (c) 1997 Mark Brinicombe.
* All rights reserved.
*
* 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 by Mark Brinicombe
* for the NetBSD Project.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR OR CONTRIBUTORS 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 _HPCARM_INTR_H_
#define _HPCARM_INTR_H_
#ifdef _KERNEL
#define IPL_NONE 0
#define IPL_SOFTCLOCK 1
#define IPL_SOFTBIO 2
#define IPL_SOFTNET 3
#define IPL_SOFTSERIAL 4
#define IPL_VM 5
#define IPL_SCHED 6
#define IPL_HIGH 7
#define NIPL 8
#define IST_UNUSABLE -1 /* interrupt cannot be used */
#define IST_NONE 0 /* none (dummy) */
#define IST_PULSE 1 /* pulsed */
#define IST_EDGE 2 /* edge-triggered */
#define IST_LEVEL 3 /* level-triggered */
#define IST_LEVEL_LOW IST_LEVEL
#define IST_LEVEL_HIGH 4
#define IST_EDGE_FALLING IST_EDGE
#define IST_EDGE_RISING 5
#define IST_EDGE_BOTH 6
#ifdef __OLD_INTERRUPT_CODE /* XXX XXX XXX */
#include <machine/irqhandler.h>
#include <arm/arm32/psl.h>
#else /* !__OLD_INTERRUPT_CODE */
#ifndef _LOCORE
#include <sys/queue.h>
#if defined(_MODULE)
int _splraise(int);
int _spllower(int);
void splx(int);
#else /* _MODULE */
#include "opt_arm_intr_impl.h"
#if defined(ARM_INTR_IMPL)
/*
* Each board needs to define the following functions:
*
* int _splraise(int);
* int _spllower(int);
* void splx(int);
* void _setsoftintr(int);
*
* These may be defined as functions, static inline functions, or macros,
* but there must be a _spllower() and splx() defined as functions callable
* from assembly language (for cpu_switch()). However, since it's quite
* useful to be able to inline splx(), you could do something like the
* following:
*
* in <boardtype>_intr.h:
* static inline int
* boardtype_splx(int spl)
* {...}
*
* #define splx(nspl) boardtype_splx(nspl)
* ...
* and in boardtype's machdep code:
*
* ...
* #undef splx
* int
* splx(int spl)
* {
* return boardtype_splx(spl);
* }
*/
#include ARM_INTR_IMPL
#else /* ARM_INTR_IMPL */
#error ARM_INTR_IMPL not defined.
#endif /* ARM_INTR_IMPL */
#endif /* _MODULE */
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 /* __OLD_INTERRUPT_CODE */
#endif /* _KERNEL */
#endif /* _HPCARM_INTR_H */
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