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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/* $OpenBSD: bthub.c,v 1.6 2013/12/15 14:32:38 pirofti Exp $ */
/*
* Copyright (c) 2007 Uwe Stuehler <uwe@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <netbt/bluetooth.h>
#include <dev/bluetooth/btdev.h>
struct bthub_softc {
struct device sc_dev;
int sc_open;
bdaddr_t sc_laddr;
LIST_HEAD(, btdev) sc_list;
};
int bthub_match(struct device *, void *, void *);
void bthub_attach(struct device *, struct device *, void *);
int bthub_detach(struct device *, int);
int bthub_print(void *, const char *);
int bthub_devioctl(dev_t, u_long, struct btdev_attach_args *);
int bthubopen(dev_t, int, int, struct proc *);
int bthubclose(dev_t, int, int, struct proc *);
int bthubioctl(dev_t, u_long, caddr_t, int, struct proc *);
struct cfattach bthub_ca = {
sizeof(struct bthub_softc), bthub_match, bthub_attach, bthub_detach
};
struct cfdriver bthub_cd = {
NULL, "bthub", DV_DULL
};
int
bthub_match(struct device *parent, void *match, void *aux)
{
return (1);
}
void
bthub_attach(struct device *parent, struct device *self, void *aux)
{
struct bthub_softc *sc = (struct bthub_softc *)self;
bdaddr_t *addr = aux;
sc->sc_open = 0;
bdaddr_copy(&sc->sc_laddr, addr);
printf(" %02x:%02x:%02x:%02x:%02x:%02x\n",
addr->b[5], addr->b[4], addr->b[3],
addr->b[2], addr->b[1], addr->b[0]);
}
int
bthub_detach(struct device *self, int flags)
{
struct bthub_softc *sc = (struct bthub_softc *)self;
struct btdev *btdev;
int maj, mn;
int err;
/* Locate the major number */
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == bthubopen)
break;
/* Nuke the vnodes for any open instances (calls close) */
mn = self->dv_unit;
vdevgone(maj, mn, mn, VCHR);
/* Detach all child devices. */
while (!LIST_EMPTY(&sc->sc_list)) {
btdev = LIST_FIRST(&sc->sc_list);
LIST_REMOVE(btdev, sc_next);
err = config_detach(&btdev->sc_dev, flags);
if (err && (flags & DETACH_FORCE) == 0) {
LIST_INSERT_HEAD(&sc->sc_list, btdev, sc_next);
return err;
}
}
return (0);
}
int
bthub_print(void *aux, const char *parentname)
{
struct btdev_attach_args *bd = aux;
bdaddr_t *raddr = &bd->bd_raddr;
if (parentname != NULL)
return QUIET;
printf(" %02x:%02x:%02x:%02x:%02x:%02x",
raddr->b[5], raddr->b[4], raddr->b[3], raddr->b[2],
raddr->b[1], raddr->b[0]);
return QUIET;
}
int
bthubopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct device *dv;
struct bthub_softc *sc;
dv = device_lookup(&bthub_cd, minor(dev));
if (dv == NULL)
return (ENXIO);
sc = (struct bthub_softc *)dv;
if (sc->sc_open) {
device_unref(dv);
return (EBUSY);
}
sc->sc_open = 1;
device_unref(dv);
return (0);
}
int
bthubclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct device *dv;
struct bthub_softc *sc;
dv = device_lookup(&bthub_cd, minor(dev));
sc = (struct bthub_softc *)dv;
sc->sc_open = 0;
device_unref(dv);
return (0);
}
int
bthubioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct btdev_attach_args *bd;
int err;
switch (cmd) {
case BTDEV_ATTACH:
case BTDEV_DETACH:
if ((flag & FWRITE) == 0)
return (EACCES);
default:
break;
}
switch (cmd) {
case BTDEV_ATTACH:
case BTDEV_DETACH:
bd = (struct btdev_attach_args *)data;
err = bthub_devioctl(dev, cmd, bd);
break;
default:
err = ENOTTY;
}
return err;
}
int
bthub_devioctl(dev_t dev, u_long cmd, struct btdev_attach_args *bd)
{
struct device *dv;
struct bthub_softc *sc;
struct btdev *btdev;
int unit;
/* Locate the relevant bthub. */
for (unit = 0; unit < bthub_cd.cd_ndevs; unit++) {
if ((dv = bthub_cd.cd_devs[unit]) == NULL)
continue;
sc = (struct bthub_softc *)dv;
if (bdaddr_same(&sc->sc_laddr, &bd->bd_laddr))
break;
}
if (unit == bthub_cd.cd_ndevs)
return (ENXIO);
/* Locate matching child device, if any. */
LIST_FOREACH(btdev, &sc->sc_list, sc_next) {
if (!bdaddr_same(&btdev->sc_addr, &bd->bd_raddr))
continue;
if (btdev->sc_type != bd->bd_type)
continue;
break;
}
switch (cmd) {
case BTDEV_ATTACH:
if (btdev != NULL)
return EADDRINUSE;
dv = config_found(&sc->sc_dev, bd, bthub_print);
if (dv == NULL)
return ENXIO;
btdev = (struct btdev *)dv;
bdaddr_copy(&btdev->sc_addr, &bd->bd_raddr);
btdev->sc_type = bd->bd_type;
LIST_INSERT_HEAD(&sc->sc_list, btdev, sc_next);
break;
case BTDEV_DETACH:
if (btdev == NULL)
return ENXIO;
LIST_REMOVE(btdev, sc_next);
config_detach(&btdev->sc_dev, DETACH_FORCE);
break;
}
return 0;
}
|
