Adds support for bluetooth audio through bluez-alsaguppy_6.99.4guppy_6.99.3guppy/6.99.4guppy/6.99.36.99.46.99.3

Implements a new bluealsa plugin to the HAL manager,
reacting to the changes of the available transports.
This plugin is linked with the new bluealsa.so shared
library.
New transports (SCO & A2DP) result in softmixer invocations
of the "attach" verb, that creates the new capture
(eg, A2DP capture from bluealsa ioplug PCM, SCO microphone
capture), playbacks (SCO playback to a softmixer zone,
and SCO output to bluealsa iogplug PCM).

When a transport disappears, the hal manager calls the
transaction deletion verb that will tell the softmixer
to remove the created streams and associated objects.

Change-Id: I36037a4f14ef7fee38070fc0df66c40b4ce46e8b
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>

1 files changed, 53 insertions, 0 deletions

diff --git a/plugins/lib/bluealsa/hal-bluealsa-transports.h b/plugins/lib/bluealsa/hal-bluealsa-transports.h
new file mode 100644
index 0000000..0c5d6a4
--- /dev/null
+++ b/plugins/lib/bluealsa/hal-bluealsa-transports.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 "IoT.bzh"
+ * Author : Thierry Bultel <thierry.bultel@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __INC_HAL_BLUEALSA_TRANSPORT_H
+#define __INC_HAL_BLUEALSA_TRANSPORT_H
+
+#include <bluealsa/bluealsa.h>
+#include <stdbool.h>
+#include <urcu/list.h>
+
+#include "afb-definitions.h"
+#include "hal-bluealsa-watch.h"
+
+typedef struct {
+	const bluealsa_watch *	watch;	/* owner */
+	struct cds_list_head	list;
+	struct ba_msg_transport transport;
+	char * 					transactionUidS;
+} bluealsa_transport_t;
+
+extern int  halBlueAlsaTransportsInit(bluealsa_transport_t  * list);
+
+extern bluealsa_transport_t * halBlueAlsaTransportsAdd(const bluealsa_watch * watch, bluealsa_transport_t * list, const struct ba_msg_transport * transport);
+extern bool                   halBlueAlsaTransportFind(const bluealsa_watch * watch, bluealsa_transport_t * list, const struct ba_msg_transport * transport);
+
+typedef int (*transport_destructor)(bluealsa_transport_t *);
+
+extern int  halBlueAlsaTransportUpdate(
+	const bluealsa_watch * watch,
+	bluealsa_transport_t * list,
+	const struct ba_msg_transport *transports,
+	size_t nb,
+	transport_destructor);
+
+#define HAL_BLUEALSA_TRANSPORT_LEN_MAX	64
+
+extern char * halBlueAlsaTransportAsString(char * s, size_t len, const struct ba_msg_transport * );
+
+#endif /* __INC_HAL_BLUEALSA_TRANSPORT_H */