CC2564MODNEM: A2DP repeater with a CC2564MODNEM and a STM3240G-EVAL board

Jo Laf

Part Number: CC2564MODNEM
Other Parts Discussed in Thread: CC256XSTBTBLESW

Hi,

Does the Audio Manager from the CC256XSTBTBLESW's AUDDemo sample code initialized via AUD_Initialize() support both Sink and Source role at the same time ?

I've initialized both InitializationInfoSNK and InitializationInfoSRC parameter in the AUD_Initialization_Info_t structure given to AUD_Initialize() and I'm getting a sink stream when I'm pairing with a bluetooth speaker.

The only way I can get a source stream is to live InitializationInfoSNK parameter uninitialized.

Best regards,

over 5 years ago

0 Vihang Parmar over 5 years ago

TI__Mastermind 29250 points

Jo,

Can you please provide us details on exactly how are you initializing the AUD_Initialization_Info_t struct? If your application is based on the AUDDemo, you can copy the Initialize_Sink function in the reply below.

Best regards,
Vihang

0 Jo Laf over 5 years ago in reply to Vihang Parmar

Prodigy 135 points

Hi Vihang,

Here is my Initialize_Sink() function :

static int Initialize_Sink(void)
{
   int                                      ret_val;
   AUD_Initialization_Info_t                InitializationInfo;
   AUD_Stream_Initialization_Info_t         InitializationInfoSNK;
   AUD_Stream_Initialization_Info_t         InitializationInfoSRC;
   AUD_Remote_Control_Initialization_Info_t InitializationInfoAVR;
   AUD_Remote_Control_Role_Info_t           RemoteControlRoleInfo;

   /* First, check to make sure that a valid Bluetooth Stack ID exists. */
   if(BluetoothStackID)
   {
      /* Next, check to make sure that the Audio Manager has not already*/
      /* been initialized.                                              */
      if(!Initialized)
      {
         VolumeChangedEventTransactionID = -1;

         /* Audio has not been initialized, now let's attempt to        */
         /* initialize it.                                              */
         BTPS_MemInitialize(&InitializationInfo, 0, sizeof(AUD_Initialization_Info_t));
         BTPS_MemInitialize(&InitializationInfoSNK, 0, sizeof(AUD_Stream_Initialization_Info_t));
         BTPS_MemInitialize(&InitializationInfoSRC, 0, sizeof(AUD_Stream_Initialization_Info_t));
         BTPS_MemInitialize(&InitializationInfoAVR, 0, sizeof(AUD_Remote_Control_Initialization_Info_t));
         BTPS_MemInitialize(&RemoteControlRoleInfo, 0, sizeof(AUD_Remote_Control_Role_Info_t));

         InitializationInfo.SNKInitializationInfo           = &InitializationInfoSNK;
         InitializationInfo.SRCInitializationInfo           = &InitializationInfoSRC;
         InitializationInfo.RemoteControlInitializationInfo = &InitializationInfoAVR;

         InitializationInfoSNK.EndpointSDPDescription       = (char *)SinkDescription;
         InitializationInfoSNK.NumberConcurrentStreams      = 1;
         InitializationInfoSNK.NumberSupportedStreamFormats = NUM_SNK_SUPPORTED_FORMATS;
         BTPS_MemCopy(InitializationInfoSNK.StreamFormat, AudioSNKSupportedFormats, sizeof(AudioSNKSupportedFormats));
         
         InitializationInfoSRC.EndpointSDPDescription       = (char *)SourDescription;
         InitializationInfoSRC.NumberConcurrentStreams      = 1;
         InitializationInfoSRC.NumberSupportedStreamFormats = NUM_SNK_SUPPORTED_FORMATS;
         BTPS_MemCopy(InitializationInfoSRC.StreamFormat, AudioSNKSupportedFormats, sizeof(AudioSNKSupportedFormats));

         InitializationInfoAVR.ControllerRoleInfo           = &RemoteControlRoleInfo;
         InitializationInfoAVR.SupportedVersion             = apvVersion1_0;

         RemoteControlRoleInfo.ProviderName                 = (char *)ProviderName;
         RemoteControlRoleInfo.ServiceName                  = (char *)ControllerDescription;
         RemoteControlRoleInfo.SupportedFeaturesFlags       = SDP_AVRCP_SUPPORTED_FEATURES_CONTROLLER_CATEGORY_1;

         /* Everything has been initialized, now attemp to initialize   */
         /* the Audio Manager.                                          */
         ret_val = AUD_Initialize(BluetoothStackID, &InitializationInfo, AUD_Event_Callback, 0);
         if(!ret_val)
         {
            DisplayFunctionSuccess("AUD_Initialize() Sink");

            Initialized = TRUE;
         }
         else
            DisplayFunctionError("AUD_Initialize()", ret_val);
      }
      else
         ret_val = -1;
   }
   else
      ret_val = -1;

   return(ret_val);
}

Best regards,
Jo

0 Jo Laf over 5 years ago in reply to Jo Laf

Prodigy 135 points

For some reason the default stream mode is sink so the first connected device is the sink and the second is the source.
So now the reapeater works, in the future we may have to change this behaviour but for now it is acceptable.
Thanks a lot,
Jo

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CC2564MODNEM: A2DP repeater with a CC2564MODNEM and a STM3240G-EVAL board