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      1 /*	$NetBSD: isr.h,v 1.13 2024/01/16 01:26:34 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2024 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _MVME68K_ISR_H_
     33 #define	_MVME68K_ISR_H_
     34 
     35 #include <sys/intr.h>
     36 
     37 /*
     38  * Aliases for the legacy mvme68k ISR routines.
     39  */
     40 
     41 static inline void
     42 isrinit(void)
     43 {
     44 	extern int nmihand(void *);
     45 
     46 	m68k_intr_init(NULL);
     47 	m68k_intr_establish(nmihand, NULL, NULL, 0, 7, 0, 0);
     48 }
     49 
     50 static inline void
     51 isrlink_autovec(int (*func)(void *), void *arg, int ipl, int isrpri,
     52     struct evcnt *ev)
     53 {
     54 	/* XXX leaks interrupt handle. */
     55 	m68k_intr_establish(func, arg, ev, 0, ipl, isrpri, 0);
     56 }
     57 
     58 static inline void
     59 isrlink_vectored(int (*func)(void *), void *arg, int ipl, int vec,
     60     struct evcnt *ev)
     61 {
     62 	/* XXX leaks interrupt handle. */
     63 	m68k_intr_establish(func, arg, ev, vec, ipl, 0, 0);
     64 }
     65 
     66 static inline struct evcnt *
     67 isrlink_evcnt(int ipl)
     68 {
     69 	KASSERT(ipl >= 0 && ipl <= 7);
     70 	return &m68k_intr_evcnt[ipl];
     71 }
     72 
     73 static inline void
     74 isrunlink_vectored(int vec)
     75 {
     76 	/* XXX isrlink_vectored() should return a handle. */
     77 	void *ih = m68k_intrvec_intrhand(vec);
     78 	if (ih != NULL) {
     79 		m68k_intr_disestablish(ih);
     80 	}
     81 }
     82 
     83 #endif /* _MVME68K_ISR_H_ */
     84