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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* $OpenBSD: radio.c,v 1.4 2002/01/05 02:23:03 mickey Exp $ */
/* $RuOBSD: radio.c,v 1.7 2001/12/04 06:03:05 tm Exp $ */
/*
* Copyright (c) 2001 Maxim Tsyplakov <tm@oganer.net>
* 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.
*/
/* This is /dev/radio driver for OpenBSD */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/vnode.h>
#include <sys/radioio.h>
#include <sys/conf.h>
#include <dev/radio_if.h>
#include <dev/radiovar.h>
int radioprobe(struct device *, void *, void *);
void radioattach(struct device *, struct device *, void *);
int radiodetach(struct device *, int);
int radioactivate(struct device *, enum devact);
int radioprint(void *, const char *);
struct cfattach radio_ca = {
sizeof(struct radio_softc), radioprobe, radioattach,
radiodetach, radioactivate
};
struct cfdriver radio_cd = {
NULL, "radio", DV_DULL
};
int
radioprobe(struct device *parent, void *match, void *aux)
{
return (1);
}
void
radioattach(struct device *parent, struct device *self, void *aux)
{
struct radio_softc *sc = (void *) self;
struct radio_attach_args *sa = aux;
struct radio_hw_if *hwp = sa->hwif;
void *hdlp = sa->hdl;
printf("\n");
sc->hw_if = hwp;
sc->hw_hdl = hdlp;
sc->sc_dev = parent;
}
int
radioopen(dev_t dev, int flags, int fmt, struct proc *p)
{
int unit;
struct radio_softc *sc;
unit = RADIOUNIT(dev);
if (unit >= radio_cd.cd_ndevs ||
(sc = radio_cd.cd_devs[unit]) == NULL ||
sc->hw_if == NULL)
return (ENXIO);
if (sc->hw_if->open != NULL)
return (sc->hw_if->open(sc->hw_hdl, flags, fmt, p));
else
return (0);
}
int
radioclose(dev_t dev, int flags, int fmt, struct proc *p)
{
struct radio_softc *sc;
sc = radio_cd.cd_devs[RADIOUNIT(dev)];
if (sc->hw_if->close != NULL)
return (sc->hw_if->close(sc->hw_hdl, flags, fmt, p));
else
return (0);
}
int
radioioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct radio_softc *sc;
int unit, error;
unit = RADIOUNIT(dev);
if (unit >= radio_cd.cd_ndevs ||
(sc = radio_cd.cd_devs[unit]) == NULL || sc->hw_if == NULL)
return (ENXIO);
error = EOPNOTSUPP;
switch (cmd) {
case RIOCGINFO:
if (sc->hw_if->get_info)
error = (sc->hw_if->get_info)(sc->hw_hdl,
(struct radio_info *)data);
break;
case RIOCSINFO:
if (sc->hw_if->set_info)
error = (sc->hw_if->set_info)(sc->hw_hdl,
(struct radio_info *)data);
break;
case RIOCSSRCH:
if (sc->hw_if->search)
error = (sc->hw_if->search)(sc->hw_hdl,
*(int *)data);
break;
default:
error = EINVAL;
}
return (error);
}
/*
* Called from hardware driver. This is where the MI radio driver gets
* probed/attached to the hardware driver
*/
struct device *
radio_attach_mi(struct radio_hw_if *rhwp, void *hdlp, struct device *dev)
{
struct radio_attach_args arg;
arg.hwif = rhwp;
arg.hdl = hdlp;
return (config_found(dev, &arg, radioprint));
}
int
radioprint(void *aux, const char *pnp)
{
if (pnp != NULL)
printf("radio at %s", pnp);
return (UNCONF);
}
int
radiodetach(struct device *self, int flags)
{
/*struct radio_softc *sc = (struct radio_softc *)self;*/
int maj, mn;
/* locate the major number */
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == radioopen)
break;
/* Nuke the vnodes for any open instances (calls close). */
mn = self->dv_unit;
vdevgone(maj, mn, mn, VCHR);
return (0);
}
int
radioactivate(struct device *self, enum devact act)
{
struct radio_softc *sc = (struct radio_softc *)self;
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
break;
}
return (0);
}
|
