Add support for bluetooth telephonyguppy_6.99.3guppy/6.99.36.99.3

This adds support for bluetooth telephony.
A big rework in the softmixer internals has been
mandatory, in order to support dynamic streams creation
and deletions.

Bluetooth telephony relies on the recent evolutions
of bluez-alsa, the most important one being the
support of HFP over Ofono. The softmixer opens
PCM ioplugs provided by bluez-alsa.
Bluetooth SCO needs 2 streams, one for listening
and the other for talking. These streams are created
upon requests sent by the hal-manager.
The hal manager subscribes for bluez-alsa events
and request the list of availalble transports.

For each "attach" transaction verb, the softmixer
maintains a list of the all created objects
(sources, sinks, zones, ramps, streams, and more)
Additionnally, it creates a new verb when the attach
succeeds, that verb is typically something like
"sco_XX:XX:XX:XX:XX:XX", and the only supported action
at the present time is {"action":"remove"}, that performs
all the cleanup of the registered objects.

Change-Id: I1b119e6c079e60daf771e63c083a1ef33a39f379
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>

1 files changed, 19 insertions, 7 deletions

diff --git a/plugins/alsa/alsa-plug-rate.c b/plugins/alsa/alsa-plug-rate.c
index 085ad78..b2c43d2 100644
--- a/plugins/alsa/alsa-plug-rate.c
+++ b/plugins/alsa/alsa-plug-rate.c
@@ -23,10 +23,18 @@
 
 ALSA_PLUG_PROTO(rate);
 
-PUBLIC AlsaPcmCtlT* AlsaCreateRate(SoftMixerT *mixer, const char* pcmName, AlsaPcmCtlT *pcmSlave, AlsaPcmHwInfoT *params, int open) {
+PUBLIC AlsaPcmCtlT* AlsaCreateRate(SoftMixerT *mixer, AlsaStreamAudioT * stream, const char* pcmName, AlsaPcmCtlT *pcmSlave, AlsaPcmHwInfoT *params, int open) {
 
     snd_config_t *rateConfig, *slaveConfig, *elemConfig, *pcmConfig;
-    AlsaPcmCtlT *pcmPlug = calloc(1, sizeof (AlsaPcmCtlT));
+
+	AFB_ApiDebug(mixer->api,"%s : %s", __func__, pcmName);
+
+	AlsaPcmCtlT *pcmPlug = AlsaPcmCtlNew(mixer, pcmName);
+	if (!pcmPlug) {
+		SOFTMIXER_NOMEM(mixer->api);
+		goto OnErrorExit;
+	}
+
     pcmPlug->cid.cardid = pcmName;
 
     int error = 0;
@@ -59,24 +67,28 @@ PUBLIC AlsaPcmCtlT* AlsaCreateRate(SoftMixerT *mixer, const char* pcmName, AlsaP
     error += snd_config_search(snd_config, "pcm", &pcmConfig);
     error += snd_config_add(pcmConfig, rateConfig);
     if (error) {
-        AFB_ApiError(mixer->api, "AlsaCreateRate: fail to add configRATE=%s", pcmPlug->cid.cardid);
+		AFB_ApiError(mixer->api, "%s: fail to add config RATE=%s", __func__, pcmPlug->cid.cardid);
         goto OnErrorExit;
     }
 
+	stream->rateConfig = rateConfig;
+
     if (open) error = _snd_pcm_rate_open(&pcmPlug->handle, pcmPlug->cid.cardid, snd_config, rateConfig, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
     if (error) {
-        AFB_ApiError(mixer->api, "AlsaCreateRate: fail to create Rate=%s Slave=%s Error=%s", pcmPlug->cid.cardid, pcmSlave->cid.cardid, snd_strerror(error));
+		AFB_ApiError(mixer->api,
+					 "%s: fail to create Rate=%s Slave=%s Error=%s",
+					 __func__, pcmPlug->cid.cardid, pcmSlave->cid.cardid, snd_strerror(error));
         goto OnErrorExit;
     }
 
     // Debug config & pcm
     //AlsaDumpCtlConfig(mixer, "plug-rate", pcmConfig, 1);
-    //AlsaDumpCtlConfig (mixer, "plug-rate", rateConfig, 1);
-    AFB_ApiNotice(mixer->api, "AlsaCreateRate: %s done", pcmPlug->cid.cardid);
+	AlsaDumpCtlConfig (mixer, "plug-rate", rateConfig, 1);
+	AFB_ApiNotice(mixer->api, "%s: %s done", __func__, pcmPlug->cid.cardid);
     return pcmPlug;
 
 OnErrorExit:
     AlsaDumpCtlConfig(mixer, "plug-rate", rateConfig, 1);
-    AFB_ApiNotice(mixer->api, "AlsaCreateRate: OnErrorExit");
+	AFB_ApiNotice(mixer->api, "%s: OnErrorExit", __func__);
     return NULL;
 }