summaryrefslogtreecommitdiff
path: root/sys/arch/news68k/dev/hb.c
blob: 8fe92bf9245cb8beb21002b92b3fdcf17075bd9b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/*	$NetBSD: hb.c,v 1.21 2021/08/07 16:19:00 thorpej Exp $	*/

/*-
 * Copyright (c) 1999 Izumi Tsutsui.  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 ``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 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hb.c,v 1.21 2021/08/07 16:19:00 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>

#include <news68k/news68k/isr.h>
#include <news68k/dev/hbvar.h>

#include "ioconf.h"

static int  hb_match(device_t, cfdata_t, void *);
static void hb_attach(device_t, device_t, void *);
static int  hb_search(device_t, cfdata_t, const int *, void *);
static int  hb_print(void *, const char *);

CFATTACH_DECL_NEW(hb, 0,
    hb_match, hb_attach, NULL, NULL);

static int
hb_match(device_t parent, cfdata_t cf, void *aux)
{
	struct mainbus_attach_args *ma = aux;

	if (strcmp(ma->ma_name, hb_cd.cd_name) != 0)
		return 0;

	if (ma->ma_systype != -1 && ma->ma_systype != systype)
		return 0;

	return 1;
}

static void
hb_attach(device_t parent, device_t self, void *aux)
{
	struct hb_attach_args ha;

	aprint_normal("\n");
	memset(&ha, 0, sizeof(ha));

	config_search(self, &ha,
	    CFARGS(.search = hb_search));
}

static int
hb_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
	struct hb_attach_args *ha = aux;

	ha->ha_name = cf->cf_name;
	ha->ha_address = cf->cf_addr;
	ha->ha_ipl = cf->cf_ipl;
	ha->ha_vect = cf->cf_vect;

	/* XXX news68k Hyper-bus is not a real bus... */
	ha->ha_bust = ISIIOPA(ha->ha_address) ?
	    NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO;

	if (config_probe(parent, cf, ha))
		config_attach(parent, cf, ha, hb_print, CFARGS_NONE);

	return 0;
}

/*
 * Print out the confargs.  The (parent) name is non-NULL
 * when there was no match found by config_found().
 */
static int
hb_print(void *args, const char *name)
{
	struct hb_attach_args *ha = args;

#if 0
	if (ha->ha_addr > 0)
#endif
		aprint_normal(" addr 0x%08lx", ha->ha_address);
	if (ha->ha_ipl > 0)
		aprint_normal(" ipl %d", ha->ha_ipl);
	if (ha->ha_vect > 0) {
		aprint_normal(" vect %d", ha->ha_vect);
	}

	return QUIET;
}

/*
 * hb_intr_establish: establish hb interrupt
 */
void
hb_intr_establish(int hbvect, int (*hand)(void *), int ipl, void *arg)
{

	if ((ipl < 1) || (ipl > 7)) {
		printf("hb: illegal interrupt level: %d\n", ipl);
		panic("hb_intr_establish");
	}

	if ((hbvect < 0) || (hbvect > 255)) {
		printf("hb: illegal vector offset: 0x%x\n", hbvect);
		panic("hb_intr_establish");
	}

	isrlink_vectored(hand, arg, ipl, hbvect);
}

void
hb_intr_disestablish(int hbvect)
{

	if ((hbvect < 0) || (hbvect > 255)) {
		printf("hb: illegal vector offset: 0x%x\n", hbvect);
		panic("hb_intr_disestablish");
	}

	isrunlink_vectored(hbvect);
}