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/*-
* Copyright (c) 2001 Jake Burkholder.
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_INTR_MACHDEP_H_
#define _MACHINE_INTR_MACHDEP_H_
#define NPIL (1 << 4)
#define NIV (1 << 11)
#define IQ_SIZE (NPIL * 2)
#define IQ_MASK (IQ_SIZE - 1)
#define IQE_SHIFT 5
#define IV_SHIFT 5
#define PIL_TICK 14
typedef void ih_func_t(struct trapframe *);
typedef void iv_func_t(void *);
struct intr_handler {
ih_func_t *ih_func;
};
struct iqe {
u_int iqe_tag;
u_int iqe_pri;
u_long iqe_vec;
iv_func_t *iqe_func;
void *iqe_arg;
};
struct intr_queue {
struct iqe iq_queue[IQ_SIZE]; /* must be first */
u_long iq_head;
u_long iq_tail;
};
struct intr_vector {
iv_func_t *iv_func; /* must be first */
void *iv_arg;
u_int iv_pri;
u_int iv_pad[3];
};
extern struct intr_handler intr_handlers[];
extern struct intr_queue intr_queues[];
extern struct intr_vector intr_vectors[];
static __inline void
intr_dispatch(int level, struct trapframe *tf)
{
intr_handlers[level].ih_func(tf);
}
void intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
void *iva);
ih_func_t intr_dequeue;
#endif
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