/* $NetBSD: intr.h,v 1.28.20.1 2023/08/09 17:42:02 martin 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 _EVBARM_INTR_H_ #define _EVBARM_INTR_H_ #ifdef _KERNEL /* Interrupt priority "levels". */ #define IPL_NONE 0 /* nothing */ #define IPL_SOFTCLOCK 1 /* clock */ #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 #define IST_SOFT 7 #define IST_MPSAFE 0x100 /* interrupt is MPSAFE */ #ifndef _LOCORE #include typedef uint8_t ipl_t; typedef struct { ipl_t _ipl; } ipl_cookie_t; #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); * * 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 _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 */ 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 #endif /* ! _LOCORE */ #endif /* _KERNEL */ #endif /* _EVBARM_INTR_H_ */