xref: /netbsd/sys/arch/news68k/dev/hb.c (revision bf9ec67e)
1 /*	$NetBSD: hb.c,v 1.5 2001/07/07 06:24:00 tsutsui Exp $	*/
2 
3 /*-
4  * Copyright (C) 1999 Izumi Tsutsui.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/device.h>
32 
33 #include <machine/autoconf.h>
34 #include <machine/bus.h>
35 #include <machine/cpu.h>
36 
37 #include <news68k/news68k/isr.h>
38 #include <news68k/dev/hbvar.h>
39 
40 static int	hb_match __P((struct device *, struct cfdata *, void *));
41 static void	hb_attach __P((struct device *, struct device *, void *));
42 static int	hb_search __P((struct device *, struct cfdata *, void *));
43 static int	hb_print __P((void *, const char *));
44 
45 struct cfattach hb_ca = {
46 	sizeof(struct device), hb_match, hb_attach
47 };
48 
49 extern struct cfdriver hb_cd;
50 
51 static int
52 hb_match(parent, cf, aux)
53 	struct device *parent;
54 	struct cfdata *cf;
55 	void *aux;
56 {
57 	struct mainbus_attach_args *ma = aux;
58 
59 	if (strcmp(ma->ma_name, hb_cd.cd_name) != 0)
60 		return 0;
61 
62 	if (ma->ma_systype != -1 && ma->ma_systype != systype)
63 		return 0;
64 
65 	return 1;
66 }
67 
68 static void
69 hb_attach(parent, self, aux)
70 	struct device *parent;
71 	struct device *self;
72 	void *aux;
73 {
74 	struct hb_attach_args ha;
75 
76 	printf("\n");
77 	memset(&ha, 0, sizeof(ha));
78 
79 	config_search(hb_search, self, &ha);
80 }
81 
82 static int
83 hb_search(parent, cf, aux)
84 	struct device *parent;
85 	struct cfdata *cf;
86 	void *aux;
87 {
88 	struct hb_attach_args *ha = aux;
89 
90 	ha->ha_name = cf->cf_driver->cd_name;
91 	ha->ha_address = cf->cf_addr;
92 	ha->ha_ipl = cf->cf_ipl;
93 	ha->ha_vect = cf->cf_vect;
94 
95 	/* XXX news68k Hyper-bus is not a real bus... */
96 	ha->ha_bust = ISIIOPA(ha->ha_address) ?
97 	    NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;
98 
99 	if ((*cf->cf_attach->ca_match)(parent, cf, ha) > 0)
100 		config_attach(parent, cf, ha, hb_print);
101 
102 	return 0;
103 }
104 
105 /*
106  * Print out the confargs.  The (parent) name is non-NULL
107  * when there was no match found by config_found().
108  */
109 static int
110 hb_print(args, name)
111 	void *args;
112 	const char *name;
113 {
114 	struct hb_attach_args *ha = args;
115 
116 #if 0
117 	if (ha->ha_addr > 0)
118 #endif
119 		printf (" addr 0x%08lx", ha->ha_address);
120 	if (ha->ha_ipl > 0)
121 		printf (" ipl %d", ha->ha_ipl);
122 	if (ha->ha_vect > 0) {
123 		printf (" vect %d", ha->ha_vect);
124 	}
125 
126 	return (QUIET);
127 }
128 
129 /*
130  * hb_intr_establish: establish hb interrupt
131  */
132 void
133 hb_intr_establish(hbvect, hand, ipl, arg)
134 	int hbvect;
135 	int (*hand) __P((void *)), ipl;
136 	void *arg;
137 {
138 
139 	if ((ipl < 1) || (ipl > 7)) {
140 		printf("hb: illegal interrupt level: %d\n", ipl);
141 		panic("hb_intr_establish");
142 	}
143 
144 	if ((hbvect < 0) || (hbvect > 255)) {
145 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
146 		panic("hb_intr_establish");
147 	}
148 
149 	isrlink_vectored(hand, arg, ipl, hbvect);
150 }
151 
152 void
153 hb_intr_disestablish(hbvect)
154 	int hbvect;
155 {
156 
157 	if ((hbvect < 0) || (hbvect > 255)) {
158 		printf("hb: illegal vector offset: 0x%x\n", hbvect);
159 		panic("hb_intr_disestablish");
160 	}
161 
162 	isrunlink_vectored(hbvect);
163 }
164