/*      $OpenBSD: intr.h,v 1.11 2025/04/30 12:30:54 visa Exp $  */
/*      $NetBSD: intr.h,v 1.22 2006/01/24 23:51:42 uwe Exp $    */

/*-
 * Copyright (c) 2002 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 THE FOUNDATION OR CONTRIBUTORS
 * 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 _SH_INTR_H_
#define _SH_INTR_H_

#ifdef  _KERNEL

#define __USE_MI_SOFTINTR

#include <sys/device.h>
#include <sys/evcount.h>
#include <sys/softintr.h>
#include <sh/psl.h>

/* 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 */

/* Interrupt priority levels */
#define _IPL_N          15
#define _IPL_NSOFT      4

#define IPL_NONE        0       /* nothing */
#define IPL_SOFTCLOCK   2       /* timeouts */
#define IPL_SOFTNET     3       /* protocol stacks */
#define IPL_SOFTSERIAL  4       /* serial */
#define IPL_SOFTTTY     IPL_SOFTSERIAL

struct intc_intrhand {
        int     (*ih_func)(void *);
        void    *ih_arg;
        int     ih_level;       /* SR.I[0:3] value */
        int     ih_evtcode;     /* INTEVT or INTEVT2(SH7709/SH7709A) */
        int     ih_idx;         /* evtcode -> intrhand mapping */
        int     ih_irq;
        struct evcount ih_count;
        const char *ih_name;
};

void intr_barrier(void *);

/* from 0x200 by 0x20 -> from 0 by 1 */
#define EVTCODE_TO_MAP_INDEX(x)         (((x) >> 5) - 0x10)
#define EVTCODE_TO_IH_INDEX(x)                                          \
        __intc_evtcode_to_ih[EVTCODE_TO_MAP_INDEX(x)]
#define EVTCODE_IH(x)   (&__intc_intrhand[EVTCODE_TO_IH_INDEX(x)])
extern int8_t __intc_evtcode_to_ih[];
extern struct intc_intrhand __intc_intrhand[];

void intc_init(void);
void *intc_intr_establish(int, int, int, int (*)(void *), void *, const char *);
void intc_intr_disestablish(void *);
void intc_intr_enable(int);
void intc_intr_disable(int);
void intc_intr(int, int, int);

void intpri_intr_priority(int evtcode, int level);

void softintr(int);

#endif  /* _KERNEL */

#endif /* !_SH_INTR_H_ */