Home | History | Annotate | Line # | Download | only in include
intr.h revision 1.16 
      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