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
*port_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_device_port
* find_best_port(pa_hashmap
*ports
) {
138 pa_device_port
*port
;
139 pa_device_port
*result
= NULL
;
141 PA_HASHMAP_FOREACH(port
, ports
, state
) {
142 if (port
->available
!= PA_PORT_AVAILABLE_YES
)
145 if (result
== NULL
|| port
->priority
> result
->priority
)
152 static void set_port_profile(pa_card
*card
, pa_device_port
*port
) {
154 pa_card_profile
*profile
;
156 PA_HASHMAP_FOREACH(profile
, port
->profiles
, state
) {
157 if (card
->active_profile
== profile
)
160 pa_log_debug("Setting card '%s' to profile '%s'", card
->name
, profile
->name
);
162 if (pa_card_set_profile(card
, profile
->name
, FALSE
) != 0)
163 pa_log_warn("Could not set profile '%s'", profile
->name
);
169 static pa_hook_result_t
port_available_hook_callback(pa_core
*c
, pa_device_port
*port
, void *userdata
) {
173 pa_bool_t is_active_profile
;
174 pa_device_port
*port2
;
176 PA_IDXSET_FOREACH(card
, c
->cards
, state
)
177 if (port
== pa_hashmap_get(card
->ports
, port
->name
))
181 pa_log_warn("Did not find port %s in array of cards", port
->name
);
185 /* Only consider bluetooth cards */
186 s
= pa_proplist_gets(card
->proplist
, PA_PROP_DEVICE_BUS
);
187 if (!s
|| !pa_streq(s
, "bluetooth"))
190 is_active_profile
= card
->active_profile
== pa_hashmap_get(port
->profiles
, card
->active_profile
->name
);
192 if (is_active_profile
&& port
->available
== PA_PORT_AVAILABLE_YES
)
195 if (!is_active_profile
&& port
->available
!= PA_PORT_AVAILABLE_YES
)
198 if ((port2
= find_best_port(card
->ports
)) == NULL
)
201 set_port_profile(card
, port2
);
206 static void handle_all_ports(pa_core
*core
) {
210 PA_IDXSET_FOREACH(card
, core
->cards
, state
) {
211 pa_device_port
*port
;
214 PA_HASHMAP_FOREACH(port
, card
->ports
, state2
)
215 port_available_hook_callback(core
, port
, NULL
);
219 int pa__init(pa_module
*m
) {
225 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
226 pa_log_error("Failed to parse module arguments");
230 m
->userdata
= u
= pa_xnew0(struct userdata
, 1);
232 u
->enable_a2dp_source
= TRUE
;
233 if (pa_modargs_get_value_boolean(ma
, "a2dp_source", &u
->enable_a2dp_source
) < 0) {
234 pa_log("Failed to parse a2dp_source argument.");
238 u
->enable_hfgw
= TRUE
;
239 if (pa_modargs_get_value_boolean(ma
, "hfgw", &u
->enable_hfgw
) < 0) {
240 pa_log("Failed to parse hfgw argument.");
244 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
);
246 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
);
248 u
->port_available_changed_slot
= pa_hook_connect(&m
->core
->hooks
[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED
],
249 PA_HOOK_NORMAL
, (pa_hook_cb_t
) port_available_hook_callback
, u
);
251 handle_all_ports(m
->core
);
261 void pa__done(pa_module
*m
) {
266 if (!(u
= m
->userdata
))
269 if (u
->source_put_slot
)
270 pa_hook_slot_free(u
->source_put_slot
);
272 if (u
->sink_put_slot
)
273 pa_hook_slot_free(u
->sink_put_slot
);
275 if (u
->port_available_changed_slot
)
276 pa_hook_slot_free(u
->port_available_changed_slot
);