173 lines
4.4 KiB
C
173 lines
4.4 KiB
C
/* $NetBSD: intr.h,v 1.6 2008/04/27 18:58:47 matt 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 _ZAURUS_INTR_H_
|
|
#define _ZAURUS_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 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 */
|
|
|
|
/* Software interrupt priority levels */
|
|
|
|
#define SOFTIRQ_CLOCK 0
|
|
#define SOFTIRQ_NET 1
|
|
#define SOFTIRQ_SERIAL 2
|
|
|
|
#define SOFTIRQ_BIT(x) (1 << x)
|
|
|
|
#include <arm/arm32/psl.h>
|
|
|
|
#else /* ! __OLD_INTERRUPT_CODE */
|
|
|
|
#define __NEWINTR /* enables new hooks in cpu_fork()/cpu_switch() */
|
|
|
|
#ifndef _LOCORE
|
|
|
|
#include <sys/device.h>
|
|
#include <sys/queue.h>
|
|
|
|
#if defined(_LKM)
|
|
|
|
int _splraise(int);
|
|
int _spllower(int);
|
|
void splx(int);
|
|
|
|
#else /* _LKM */
|
|
|
|
#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);
|
|
*
|
|
* 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 /* _LKM */
|
|
|
|
#define splsoft() _splraise(IPL_SOFT)
|
|
|
|
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 /* _ZAURUS_INTR_H_ */
|