2 This file is part of PulseAudio.
4 Copyright 2006 Lennart Poettering
5 Copyright 2009 Canonical Ltd
6 Copyright (C) 2012 Intel Corporation
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2.1 of the License,
11 or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <pulse/xmalloc.h>
30 #include <pulsecore/core.h>
31 #include <pulsecore/modargs.h>
32 #include <pulsecore/source-output.h>
33 #include <pulsecore/source.h>
34 #include <pulsecore/core-util.h>
36 #include "module-bluetooth-policy-symdef.h"
38 PA_MODULE_AUTHOR("Frédéric Dalleau");
39 PA_MODULE_DESCRIPTION("When a bluetooth sink or source is added, load module-loopback");
40 PA_MODULE_VERSION(PACKAGE_VERSION
);
41 PA_MODULE_LOAD_ONCE(true);
43 "a2dp_source=<Handle a2dp_source card profile (sink role)?> "
44 "hfgw=<Handle hfgw card profile (headset role)?>");
46 static const char* const valid_modargs
[] = {
53 bool enable_a2dp_source
;
55 pa_hook_slot
*source_put_slot
;
56 pa_hook_slot
*sink_put_slot
;
57 pa_hook_slot
*profile_available_changed_slot
;
60 /* When a source is created, loopback it to default sink */
61 static pa_hook_result_t
source_put_hook_callback(pa_core
*c
, pa_source
*source
, void *userdata
) {
62 struct userdata
*u
= userdata
;
70 /* Only consider bluetooth sinks and sources */
71 s
= pa_proplist_gets(source
->proplist
, PA_PROP_DEVICE_BUS
);
75 if (!pa_streq(s
, "bluetooth"))
78 s
= pa_proplist_gets(source
->proplist
, "bluetooth.protocol");
82 if (u
->enable_a2dp_source
&& pa_streq(s
, "a2dp_source")) /* A2DP profile (we're doing sink role) */
84 else if (u
->enable_hfgw
&& pa_streq(s
, "hfgw")) /* HFP profile (we're doing headset role) */
87 pa_log_debug("Profile %s cannot be selected for loopback", s
);
91 /* Load module-loopback */
92 args
= pa_sprintf_malloc("source=\"%s\" source_dont_move=\"true\" sink_input_properties=\"media.role=%s\"", source
->name
, role
);
93 (void) pa_module_load(c
, "module-loopback", args
);
99 /* When a sink is created, loopback it to default source */
100 static pa_hook_result_t
sink_put_hook_callback(pa_core
*c
, pa_sink
*sink
, void *userdata
) {
101 struct userdata
*u
= userdata
;
109 /* Only consider bluetooth sinks and sources */
110 s
= pa_proplist_gets(sink
->proplist
, PA_PROP_DEVICE_BUS
);
114 if (!pa_streq(s
, "bluetooth"))
117 s
= pa_proplist_gets(sink
->proplist
, "bluetooth.protocol");
121 if (u
->enable_hfgw
&& pa_streq(s
, "hfgw")) /* HFP profile (we're doing headset role) */
124 pa_log_debug("Profile %s cannot be selected for loopback", s
);
128 /* Load module-loopback */
129 args
= pa_sprintf_malloc("sink=\"%s\" sink_dont_move=\"true\" source_output_properties=\"media.role=%s\"", sink
->name
, role
);
130 (void) pa_module_load(c
, "module-loopback", args
);
136 static pa_card_profile
*find_best_profile(pa_card
*card
) {
138 pa_card_profile
*profile
;
139 pa_card_profile
*result
= card
->active_profile
;
140 pa_card_profile
*off
;
142 pa_assert_se(off
= pa_hashmap_get(card
->profiles
, "off"));
144 PA_HASHMAP_FOREACH(profile
, card
->profiles
, state
) {
145 if (profile
->available
== PA_AVAILABLE_NO
|| profile
== off
)
148 if (result
== NULL
||
149 (profile
->available
== PA_AVAILABLE_YES
&& result
->available
== PA_AVAILABLE_UNKNOWN
) ||
150 (profile
->available
== result
->available
&& profile
->priority
> result
->priority
))
154 return result
? result
: off
;
157 static pa_hook_result_t
profile_available_hook_callback(pa_core
*c
, pa_card_profile
*profile
, void *userdata
) {
160 bool is_active_profile
;
161 pa_card_profile
*selected_profile
;
165 pa_assert_se((card
= profile
->card
));
167 /* Only consider bluetooth cards */
168 s
= pa_proplist_gets(card
->proplist
, PA_PROP_DEVICE_BUS
);
169 if (!s
|| !pa_streq(s
, "bluetooth"))
172 /* Do not automatically switch profiles for headsets, just in case */
173 if (pa_streq(profile
->name
, "hsp") || pa_streq(profile
->name
, "a2dp"))
176 is_active_profile
= card
->active_profile
== profile
;
178 if (profile
->available
== PA_AVAILABLE_YES
) {
179 if (is_active_profile
)
182 if (card
->active_profile
->available
== PA_AVAILABLE_YES
&& card
->active_profile
->priority
>= profile
->priority
)
185 selected_profile
= profile
;
187 if (!is_active_profile
)
190 pa_assert_se((selected_profile
= find_best_profile(card
)));
192 if (selected_profile
== card
->active_profile
)
196 pa_log_debug("Setting card '%s' to profile '%s'", card
->name
, selected_profile
->name
);
198 if (pa_card_set_profile(card
, selected_profile
, false) != 0)
199 pa_log_warn("Could not set profile '%s'", selected_profile
->name
);
204 static void handle_all_profiles(pa_core
*core
) {
208 PA_IDXSET_FOREACH(card
, core
->cards
, state
) {
209 pa_card_profile
*profile
;
212 PA_HASHMAP_FOREACH(profile
, card
->profiles
, state2
)
213 profile_available_hook_callback(core
, profile
, NULL
);
217 int pa__init(pa_module
*m
) {
223 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
224 pa_log_error("Failed to parse module arguments");
228 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
230 u
->enable_a2dp_source
= true;
231 if (pa_modargs_get_value_boolean(ma
, "a2dp_source", &u
->enable_a2dp_source
) < 0) {
232 pa_log("Failed to parse a2dp_source argument.");
236 u
->enable_hfgw
= true;
237 if (pa_modargs_get_value_boolean(ma
, "hfgw", &u
->enable_hfgw
) < 0) {
238 pa_log("Failed to parse hfgw argument.");
242 u
->source_put_slot
= pa_hook_connect(&m
->core
->hooks
[PA_CORE_HOOK_SOURCE_PUT
], PA_HOOK_NORMAL
, (pa_hook_cb_t
) source_put_hook_callback
, u
);
244 u
->sink_put_slot
= pa_hook_connect(&m
->core
->hooks
[PA_CORE_HOOK_SINK_PUT
], PA_HOOK_NORMAL
, (pa_hook_cb_t
) sink_put_hook_callback
, u
);
246 u
->profile_available_changed_slot
= pa_hook_connect(&m
->core
->hooks
[PA_CORE_HOOK_CARD_PROFILE_AVAILABLE_CHANGED
],
247 PA_HOOK_NORMAL
, (pa_hook_cb_t
) profile_available_hook_callback
, u
);
249 handle_all_profiles(m
->core
);
259 void pa__done(pa_module
*m
) {
264 if (!(u
= m
->userdata
))
267 if (u
->source_put_slot
)
268 pa_hook_slot_free(u
->source_put_slot
);
270 if (u
->sink_put_slot
)
271 pa_hook_slot_free(u
->sink_put_slot
);
273 if (u
->profile_available_changed_slot
)
274 pa_hook_slot_free(u
->profile_available_changed_slot
);