at91aicvar.h revision 1.1.2.1 1 1.1.2.1 matt /* $NetBSD: at91aicvar.h,v 1.1.2.1 2007/11/10 02:56:28 matt Exp $ */
2 1.1.2.1 matt
3 1.1.2.1 matt /*
4 1.1.2.1 matt * Copyright (c) 2007 Embedtronics Oy
5 1.1.2.1 matt * All rights reserved.
6 1.1.2.1 matt *
7 1.1.2.1 matt * Redistribution and use in source and binary forms, with or without
8 1.1.2.1 matt * modification, are permitted provided that the following conditions
9 1.1.2.1 matt * are met:
10 1.1.2.1 matt * 1. Redistributions of source code must retain the above copyright
11 1.1.2.1 matt * notice, this list of conditions and the following disclaimer.
12 1.1.2.1 matt * 2. Redistributions in binary form must reproduce the above copyright
13 1.1.2.1 matt * notice, this list of conditions and the following disclaimer in the
14 1.1.2.1 matt * documentation and/or other materials provided with the distribution.
15 1.1.2.1 matt * 3. All advertising materials mentioning features or use of this software
16 1.1.2.1 matt * must display the following acknowledgement:
17 1.1.2.1 matt * This product includes software developed by Ichiro FUKUHARA.
18 1.1.2.1 matt * 4. The name of the company nor the name of the author may be used to
19 1.1.2.1 matt * endorse or promote products derived from this software without specific
20 1.1.2.1 matt * prior written permission.
21 1.1.2.1 matt *
22 1.1.2.1 matt * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
23 1.1.2.1 matt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 1.1.2.1 matt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 1.1.2.1 matt * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
26 1.1.2.1 matt * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 1.1.2.1 matt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 1.1.2.1 matt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 1.1.2.1 matt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 1.1.2.1 matt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 1.1.2.1 matt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 1.1.2.1 matt * SUCH DAMAGE.
33 1.1.2.1 matt */
34 1.1.2.1 matt
35 1.1.2.1 matt #ifndef _AT91AICVAR_H_
36 1.1.2.1 matt #define _AT91AICVAR_H_
37 1.1.2.1 matt
38 1.1.2.1 matt struct intrhand {
39 1.1.2.1 matt TAILQ_ENTRY(intrhand) ih_list; /* link on intrq list */
40 1.1.2.1 matt int (*ih_func)(void *); /* interrupt handler */
41 1.1.2.1 matt void *ih_arg; /* arg for handler */
42 1.1.2.1 matt int ih_ipl; /* IPL_* */
43 1.1.2.1 matt int ih_irq; /* IRQ number */
44 1.1.2.1 matt };
45 1.1.2.1 matt
46 1.1.2.1 matt #define IRQNAMESIZE sizeof("aic irq xxx")
47 1.1.2.1 matt
48 1.1.2.1 matt struct intrq {
49 1.1.2.1 matt TAILQ_HEAD(, intrhand) iq_list; /* handler list */
50 1.1.2.1 matt struct evcnt iq_ev; /* event counter */
51 1.1.2.1 matt u_int32_t iq_levels; /* IPL_*'s this IRQ has */
52 1.1.2.1 matt char iq_name[IRQNAMESIZE]; /* interrupt name */
53 1.1.2.1 matt int iq_type; /* interrupt request type: */
54 1.1.2.1 matt #define _INTR_LOW_LEVEL 1 /* interrupt when signal at low level */
55 1.1.2.1 matt #define INTR_HIGH_LEVEL 2 /* interrupt when signal at high level */
56 1.1.2.1 matt #define INTR_FALLING_EDGE 4 /* interrupt on falling edge */
57 1.1.2.1 matt #define INTR_RISING_EDGE 8 /* interrupt on rising edge */
58 1.1.2.1 matt #define INTR_MASK 0xF
59 1.1.2.1 matt volatile int iq_busy; /* set if irq is busy */
60 1.1.2.1 matt };
61 1.1.2.1 matt
62 1.1.2.1 matt void at91aic_init(void);
63 1.1.2.1 matt void *at91aic_intr_establish(int irq, int ipl, int type, int (*ih_func)(void *), void *arg);
64 1.1.2.1 matt void at91aic_intr_disestablish(void *cookie);
65 1.1.2.1 matt void at91aic_intr_poll(void *ihp, int flags);
66 1.1.2.1 matt void at91aic_intr_dispatch(struct irqframe *frame);
67 1.1.2.1 matt
68 1.1.2.1 matt #endif /* _AT91AICVAR_H_ */
69