[pulseaudio-discuss] [PATCH v0 12/20] bluetooth: Acquire transport when becomes available

[Mikel Astiz]

From: Mikel Astiz <mikel.astiz at bmw-carit.de>

Try to acquire the transport as soon as the audio stream is started,
along with the availability flag update.
---
 src/modules/bluetooth/module-bluetooth-device.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c
index 8a38053..c1a88b0 100644
--- a/src/modules/bluetooth/module-bluetooth-device.c
+++ b/src/modules/bluetooth/module-bluetooth-device.c
@@ -1248,6 +1248,7 @@ static pa_port_available_t audio_state_to_availability(pa_bt_audio_state_t state
 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
     DBusError err;
     struct userdata *u;
+    bool acquire = FALSE;
 
     pa_assert(bus);
     pa_assert(m);
@@ -1324,6 +1325,8 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
 
             pa_assert_se(port = pa_hashmap_get(u->card->ports, "hfgw-input"));
             pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HFGW);
         }
     } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged")) {
         pa_bt_audio_state_t state = parse_state_property_change(m);
@@ -1337,6 +1340,8 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
 
             pa_assert_se(port = pa_hashmap_get(u->card->ports, "hsp-input"));
             pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HSP);
         }
     } else if (dbus_message_is_signal(m, "org.bluez.AudioSource", "PropertyChanged")) {
         pa_bt_audio_state_t state = parse_state_property_change(m);
@@ -1347,6 +1352,8 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
 
             pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-input"));
             pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP_SOURCE);
         }
     } else if (dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged")) {
         pa_bt_audio_state_t state = parse_state_property_change(m);
@@ -1357,9 +1364,20 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
 
             pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-output"));
             pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP);
         }
     }
 
+    if (acquire)
+        if (bt_transport_acquire(u, FALSE) >= 0) {
+            if (u->source)
+                pa_source_suspend(u->source, FALSE, PA_SUSPEND_IDLE);
+
+            if (u->sink)
+                pa_sink_suspend(u->sink, FALSE, PA_SUSPEND_IDLE);
+        }
+
 fail:
     dbus_error_free(&err);
 
-- 
1.7.7.6