2 This file is part of PulseAudio.
4 Copyright 2006 Lennart Poettering
5 Copyright 2011 Canonical Ltd
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 #include <pulsecore/core.h>
28 #include <pulsecore/device-port.h>
29 #include <pulsecore/hashmap.h>
31 #include "module-switch-on-port-available-symdef.h"
34 pa_hook_slot
*callback_slot
;
37 static pa_device_port
* find_best_port(pa_hashmap
*ports
) {
39 pa_device_port
* port
, *result
= NULL
;
41 PA_HASHMAP_FOREACH(port
, ports
, state
) {
43 result
->available
== PA_PORT_AVAILABLE_NO
||
44 (port
->available
!= PA_PORT_AVAILABLE_NO
&& port
->priority
> result
->priority
)) {
52 static pa_bool_t
try_to_switch_profile(pa_card
*card
, pa_device_port
*port
) {
53 pa_card_profile
*best_profile
= NULL
, *profile
;
56 pa_log_debug("Finding best profile");
59 PA_HASHMAP_FOREACH(profile
, port
->profiles
, state
) {
60 if (best_profile
&& best_profile
->priority
>= profile
->priority
)
63 if (!card
->active_profile
) {
64 best_profile
= profile
;
68 /* We make a best effort to keep other direction unchanged */
69 if (!port
->is_input
) {
70 if (card
->active_profile
->n_sources
!= profile
->n_sources
)
73 if (card
->active_profile
->max_source_channels
!= profile
->max_source_channels
)
77 if (!port
->is_output
) {
78 if (card
->active_profile
->n_sinks
!= profile
->n_sinks
)
81 if (card
->active_profile
->max_sink_channels
!= profile
->max_sink_channels
)
85 if (port
->is_output
) {
86 /* Try not to switch to HDMI sinks from analog when HDMI is becoming available */
89 pa_bool_t found_active_port
= FALSE
;
90 PA_IDXSET_FOREACH(sink
, card
->sinks
, state2
) {
91 if (!sink
->active_port
)
93 if (sink
->active_port
->available
!= PA_PORT_AVAILABLE_NO
)
94 found_active_port
= TRUE
;
96 if (found_active_port
)
100 best_profile
= profile
;
104 pa_log_debug("No suitable profile found");
108 if (pa_card_set_profile(card
, best_profile
->name
, FALSE
) != 0) {
109 pa_log_debug("Could not set profile %s", best_profile
->name
);
116 static void find_sink_and_source(pa_card
*card
, pa_device_port
*port
, pa_sink
**si
, pa_source
**so
)
118 pa_sink
*sink
= NULL
;
119 pa_source
*source
= NULL
;
123 PA_IDXSET_FOREACH(sink
, card
->sinks
, state
)
124 if (port
== pa_hashmap_get(sink
->ports
, port
->name
))
128 PA_IDXSET_FOREACH(source
, card
->sources
, state
)
129 if (port
== pa_hashmap_get(source
->ports
, port
->name
))
136 static pa_hook_result_t
port_available_hook_callback(pa_core
*c
, pa_device_port
*port
, void* userdata
) {
141 pa_bool_t is_active_profile
, is_active_port
;
143 if (port
->available
== PA_PORT_AVAILABLE_UNKNOWN
)
146 pa_log_debug("finding port %s", port
->name
);
148 PA_IDXSET_FOREACH(card
, c
->cards
, state
)
149 if (card
->ports
&& port
== pa_hashmap_get(card
->ports
, port
->name
))
153 pa_log_warn("Did not find port %s in array of cards", port
->name
);
157 find_sink_and_source(card
, port
, &sink
, &source
);
159 is_active_profile
= port
->profiles
&& card
->active_profile
&&
160 card
->active_profile
== pa_hashmap_get(port
->profiles
, card
->active_profile
->name
);
161 is_active_port
= (sink
&& sink
->active_port
== port
) || (source
&& source
->active_port
== port
);
163 if (port
->available
== PA_PORT_AVAILABLE_NO
&& !is_active_port
)
166 if (port
->available
== PA_PORT_AVAILABLE_YES
) {
170 if (!is_active_profile
) {
171 if (!try_to_switch_profile(card
, port
))
174 pa_assert(card
->active_profile
== pa_hashmap_get(port
->profiles
, card
->active_profile
->name
));
176 /* Now that profile has changed, our sink and source pointers must be updated */
177 find_sink_and_source(card
, port
, &sink
, &source
);
181 pa_source_set_port(source
, port
->name
, FALSE
);
183 pa_sink_set_port(sink
, port
->name
, FALSE
);
186 if (port
->available
== PA_PORT_AVAILABLE_NO
) {
188 pa_device_port
*p2
= find_best_port(sink
->ports
);
190 if (p2
&& p2
->available
!= PA_PORT_AVAILABLE_NO
)
191 pa_sink_set_port(sink
, p2
->name
, FALSE
);
193 /* Maybe try to switch to another profile? */
198 pa_device_port
*p2
= find_best_port(source
->ports
);
200 if (p2
&& p2
->available
!= PA_PORT_AVAILABLE_NO
)
201 pa_source_set_port(source
, p2
->name
, FALSE
);
203 /* Maybe try to switch to another profile? */
211 static void handle_all_unavailable(pa_core
*core
) {
215 PA_IDXSET_FOREACH(card
, core
->cards
, state
) {
216 pa_device_port
*port
;
222 PA_HASHMAP_FOREACH(port
, card
->ports
, state2
) {
223 if (port
->available
== PA_PORT_AVAILABLE_NO
)
224 port_available_hook_callback(core
, port
, NULL
);
229 int pa__init(pa_module
*m
) {
234 m
->userdata
= u
= pa_xnew(struct userdata
, 1);
236 u
->callback_slot
= pa_hook_connect(&m
->core
->hooks
[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED
],
237 PA_HOOK_LATE
, (pa_hook_cb_t
) port_available_hook_callback
, u
);
239 handle_all_unavailable(m
->core
);
244 void pa__done(pa_module
*m
) {
249 if (!(u
= m
->userdata
))
252 if (u
->callback_slot
)
253 pa_hook_slot_free(u
->callback_slot
);