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
|
/***
This file is part of PulseAudio.
Copyright 2009 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulsecore/log.h>
#include <hal/libhal.h>
#include "dbus-util.h"
#include "hal-util.h"
int pa_hal_get_info(pa_core *core, pa_proplist *p, int card) {
pa_dbus_connection *c = NULL;
LibHalContext *hal = NULL;
DBusError error;
int r = -1;
char **udis = NULL, *t;
int n, i;
pa_assert(core);
pa_assert(p);
pa_assert(card >= 0);
dbus_error_init(&error);
if (!(c = pa_dbus_bus_get(core, DBUS_BUS_SYSTEM, &error)) || dbus_error_is_set(&error)) {
pa_log_error("Unable to contact DBUS system bus: %s: %s", error.name, error.message);
goto finish;
}
if (!(hal = libhal_ctx_new())) {
pa_log_error("libhal_ctx_new() finished");
goto finish;
}
if (!libhal_ctx_set_dbus_connection(hal, pa_dbus_connection_get(c))) {
pa_log_error("Error establishing DBUS connection: %s: %s", error.name, error.message);
goto finish;
}
if (!libhal_ctx_init(hal, &error)) {
pa_log_error("Couldn't connect to hald: %s: %s", error.name, error.message);
goto finish;
}
if (!(udis = libhal_find_device_by_capability(hal, "sound", &n, &error)) < 0) {
pa_log_error("Couldn't find devices: %s: %s", error.name, error.message);
goto finish;
}
for (i = 0; i < n; i++) {
dbus_int32_t this_card;
this_card = libhal_device_get_property_int(hal, udis[i], "sound.card", &error);
if (dbus_error_is_set(&error)) {
dbus_error_free(&error);
continue;
}
if (this_card == card)
break;
}
if (i >= n)
goto finish;
pa_proplist_sets(p, "hal.udi", udis[i]);
t = libhal_device_get_property_string(hal, udis[i], "info.product", &error);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
if (t) {
pa_proplist_sets(p, "hal.product", t);
libhal_free_string(t);
}
t = libhal_device_get_property_string(hal, udis[i], "sound.card_id", &error);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
if (t) {
pa_proplist_sets(p, "hal.card_id", t);
libhal_free_string(t);
}
r = 0;
finish:
if (udis)
libhal_free_string_array(udis);
dbus_error_free(&error);
if (hal) {
libhal_ctx_shutdown(hal, &error);
libhal_ctx_free(hal);
dbus_error_free(&error);
}
if (c)
pa_dbus_connection_unref(c);
return r;
}
|
