1 /* $NetBSD: intr.h,v 1.16 2007/12/03 15:33:23 ad 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #ifndef _ATARI_INTR_H_ 37 #define _ATARI_INTR_H_ 38 39 #define IPL_NONE 0 /* disable no interrupts */ 40 #define IPL_SOFTCLOCK 1 41 #define IPL_SOFTBIO 2 42 #define IPL_SOFTNET 3 43 #define IPL_SOFTSERIAL 4 44 #define IPL_VM 5 45 #define IPL_SCHED 6 46 #define IPL_HIGH 7 47 #define NIPL 8 48 49 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 50 #define IST_NONE 0 /* none (dummy) */ 51 #define IST_PULSE 1 /* pulsed */ 52 #define IST_EDGE 2 /* edge-triggered */ 53 #define IST_LEVEL 3 /* level-triggered */ 54 55 /* 56 * spl functions; all but spl0 are done in-line 57 */ 58 #include <machine/psl.h> 59 60 /* spl0 requires checking for software interrupts */ 61 62 #define splsoftclock() splraise1() 63 #define splsoftbio() splraise1() 64 #define splsoftnet() splraise1() 65 #define splsoftserial() splraise1() 66 #define splvm() splraise4() 67 #define splsched() splraise6() 68 #define splhigh() spl7() 69 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) 70 71 #ifdef _KERNEL 72 int spl0 __P((void)); 73 74 typedef int ipl_t; 75 typedef struct { 76 uint16_t _psl; 77 } ipl_cookie_t; 78 79 ipl_cookie_t makeiplcookie(ipl_t); 80 81 static inline int 82 splraiseipl(ipl_cookie_t icookie) 83 { 84 85 return _splraise(icookie._psl); 86 } 87 88 #endif /* _KERNEL */ 89 90 #endif /* _ATARI_INTR_H_ */ 91