1 /* $NetBSD: intr.h,v 1.20 2009/03/05 13:00:45 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _ATARI_INTR_H_ 30 #define _ATARI_INTR_H_ 31 32 #define IPL_NONE 0 /* disable no interrupts */ 33 #define IPL_SOFTCLOCK 1 34 #define IPL_SOFTBIO 2 35 #define IPL_SOFTNET 3 36 #define IPL_SOFTSERIAL 4 37 #define IPL_VM 5 38 #define IPL_SCHED 6 39 #define IPL_HIGH 7 40 #define NIPL 8 41 42 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 43 #define IST_NONE 0 /* none (dummy) */ 44 #define IST_PULSE 1 /* pulsed */ 45 #define IST_EDGE 2 /* edge-triggered */ 46 #define IST_LEVEL 3 /* level-triggered */ 47 48 /* 49 * spl functions; all but spl0 are done in-line 50 */ 51 #include <machine/psl.h> 52 53 /* spl0 requires checking for software interrupts */ 54 55 #define splsoftclock() splraise1() 56 #define splsoftbio() splraise1() 57 #define splsoftnet() splraise1() 58 #define splsoftserial() splraise1() 59 #define splvm() splraise4() 60 #define splsched() splraise6() 61 #define splhigh() spl7() 62 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) 63 64 #ifdef _KERNEL 65 int spl0(void); 66 67 extern const uint16_t ipl2psl_table[NIPL]; 68 extern int idepth; 69 70 typedef int ipl_t; 71 typedef struct { 72 uint16_t _psl; 73 } ipl_cookie_t; 74 75 static inline ipl_cookie_t 76 makeiplcookie(ipl_t ipl) 77 { 78 79 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; 80 } 81 82 static inline int 83 splraiseipl(ipl_cookie_t icookie) 84 { 85 86 return _splraise(icookie._psl); 87 } 88 89 #endif /* _KERNEL */ 90 91 #endif /* _ATARI_INTR_H_ */ 92