69 lines
2.9 KiB
C
69 lines
2.9 KiB
C
/* $NetBSD: at91aicvar.h,v 1.2 2008/07/03 01:15:38 matt Exp $ */
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/*
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* Copyright (c) 2007 Embedtronics Oy
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Ichiro FUKUHARA.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _AT91AICVAR_H_
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#define _AT91AICVAR_H_
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struct intrhand {
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TAILQ_ENTRY(intrhand) ih_list; /* link on intrq list */
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int (*ih_func)(void *); /* interrupt handler */
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void *ih_arg; /* arg for handler */
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int ih_ipl; /* IPL_* */
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int ih_irq; /* IRQ number */
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};
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#define IRQNAMESIZE sizeof("aic irq xxx")
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struct intrq {
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TAILQ_HEAD(, intrhand) iq_list; /* handler list */
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struct evcnt iq_ev; /* event counter */
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u_int32_t iq_levels; /* IPL_*'s this IRQ has */
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char iq_name[IRQNAMESIZE]; /* interrupt name */
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int iq_type; /* interrupt request type: */
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#define _INTR_LOW_LEVEL 1 /* interrupt when signal at low level */
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#define INTR_HIGH_LEVEL 2 /* interrupt when signal at high level */
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#define INTR_FALLING_EDGE 4 /* interrupt on falling edge */
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#define INTR_RISING_EDGE 8 /* interrupt on rising edge */
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#define INTR_MASK 0xF
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volatile int iq_busy; /* set if irq is busy */
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};
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void at91aic_init(void);
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void *at91aic_intr_establish(int irq, int ipl, int type, int (*ih_func)(void *), void *arg);
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void at91aic_intr_disestablish(void *cookie);
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void at91aic_intr_poll(void *ihp, int flags);
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void at91aic_intr_dispatch(struct irqframe *frame);
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#endif /* _AT91AICVAR_H_ */
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