Adds support for bluetooth audio through bluez-alsasandbox/tbultel/bluealsa

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.

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

1 files changed, 13 insertions, 6 deletions

diff --git a/4a-hal-cfg-reference/hal-4a-rcar-m3.json b/4a-hal-cfg-reference/hal-4a-rcar-m3.json
index 5644262..5df9bd6 100644
--- a/4a-hal-cfg-reference/hal-4a-rcar-m3.json
+++ b/4a-hal-cfg-reference/hal-4a-rcar-m3.json
@@ -10,14 +10,21 @@
         "date": "2018-06-13"
     },
     "resources": [
-        {
-            "uid": "hal-bt",
-            "info": "Bluetooth hal plugin to get A2DP bluetooth device as an input by tweaking softmixer configuration",
+          {
+            "uid": "hal-bluealsa",
+            "info": "Bluealsa hal plugin",
             "params": {
-                "channels": 2,
-                "zone": "front-seats"
+                "sco": {
+                    "mic": "RCAR-M3",
+                    "zone": "full-stereo",
+                    "delayms": 200
+                },
+                "a2dp": {
+                    "zone": "full-stereo",
+                    "delayms": 1000
+                }
             },
-            "libs": ["hal-bt.ctlso"]
+            "libs": ["hal-bluealsa.ctlso"]
         }
     ],
     "controls": [