1/* $NetBSD: pic_cpc700.c,v 1.8 2020/11/21 15:42:20 thorpej Exp $ */
2
3/*-
4 * Copyright (c) 2007 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tim Rightnour
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#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: pic_cpc700.c,v 1.8 2020/11/21 15:42:20 thorpej Exp $");
34
35#include <sys/param.h>
36#include <sys/kmem.h>
37#include <sys/kernel.h>
38
39#include <machine/pio.h>
40#include <machine/intr.h>
41#include <sys/bus.h>
42
43#include <arch/powerpc/pic/picvar.h>
44
45#include <dev/ic/cpc700reg.h>
46#include <dev/ic/cpc700uic.h>
47
48static void cpc700_pic_enable_irq(struct pic_ops *, int, int);
49static void cpc700_pic_disable_irq(struct pic_ops *, int);
50static int  cpc700_get_irq(struct pic_ops *, int);
51static void cpc700_ack_irq(struct pic_ops *, int);
52
53struct cpc700_ops {
54	struct pic_ops pic;
55};
56
57struct pic_ops *
58setup_cpc700(void)
59{
60	struct cpc700_ops *cpc700;
61	struct pic_ops *pic;
62
63	cpc700 = kmem_alloc(sizeof(struct cpc700_ops), KM_SLEEP);
64	pic = &cpc700->pic;
65
66	pic->pic_numintrs = 32;
67	pic->pic_cookie = (void *)NULL;
68	pic->pic_enable_irq = cpc700_pic_enable_irq;
69	pic->pic_reenable_irq = cpc700_pic_enable_irq;
70	pic->pic_disable_irq = cpc700_pic_disable_irq;
71	pic->pic_get_irq = cpc700_get_irq;
72	pic->pic_ack_irq = cpc700_ack_irq;
73	pic->pic_establish_irq = dummy_pic_establish_intr;
74	strcpy(pic->pic_name, "cpc700");
75	pic_add(pic);
76
77	return pic;
78}
79
80static void
81cpc700_pic_enable_irq(struct pic_ops *pic, int irq, int type)
82{
83	cpc700_enable_irq(irq);
84}
85
86static void
87cpc700_pic_disable_irq(struct pic_ops *pic, int irq)
88{
89	cpc700_disable_irq(irq);
90}
91
92static int
93cpc700_get_irq(struct pic_ops *pic, int dummy)
94{
95	int irq;
96
97	irq = cpc700_read_irq();
98	if (irq < 0)
99		return 255;
100	return irq;
101}
102
103static void
104cpc700_ack_irq(struct pic_ops *pic, int irq)
105{
106	cpc700_eoi(irq);
107}
108