/****************************************************************************
NAME
aghfpHandleSyncDisconnectInd
DESCRIPTION
Audio (Synchronous) connection has been disconnected
RETURNS
void
*/
void aghfpHandleSyncDisconnectInd(AGHFP *aghfp, const CL_DM_SYNC_DISCONNECT_IND_T *ind)
{
/* If it's not our sink, silently ignore this indication */
if ( ind->audio_sink == aghfp->audio_sink )
{
if ( aghfp->audio_connection_state==aghfp_audio_connected ||
aghfp->audio_connection_state==aghfp_audio_disconnecting )
{
/* Inform the app */
if (ind->status == hci_success)
{
resetAudioParams(aghfp);
aghfp->audio_connection_state = aghfp_audio_disconnected;
if ( aghfpCallManagerActiveNotComplete(aghfp) )
{
aghfpManageCall(aghfp, CallEventAudioDisconnected, CallFlagSuccess);
}
else
{
sendAudioDisconnectIndToApp(aghfp, aghfp_success);
}
}
else
{
/* Disconnect has failed, we are still connected - inform the app */
if ( aghfpCallManagerActiveNotComplete(aghfp) )
{
aghfpManageCall(aghfp, CallEventAudioDisconnected, CallFlagFail);
}
else
{
sendAudioDisconnectIndToApp(aghfp, aghfp_fail);
}
}
/* Update the local state. Check current state in case SLC disconnect has beaten the SCO/eSCO disconnect */
if (!aghfpCallManagerActive(aghfp) && supportedProfileIsHsp(aghfp->supported_profile) && (aghfp->state != aghfp_ready))
{
aghfpSetState(aghfp, aghfp_slc_connected);
}
}
else
{
/* Should never get here */
AGHFP_DEBUG(("aghfpHandleSyncDisconnectInd invalid state %d\n",aghfp->audio_connection_state));
}
}
}
/* Disconnect an existing audio (Synchronous) connection */
static void audioDisconnectRequest(AGHFP *aghfp)
{
if ( !aghfpCallManagerActiveNotComplete(aghfp) )
{
/* Send a disconnect request to the connection lib */
aghfp->audio_connection_state = aghfp_audio_disconnecting;
ConnectionSyncDisconnect(aghfp->audio_sink, hci_error_oetc_user);
}
else
{
/* Inform app that call manager is active, setting up or shutting down a call */
sendAudioConnectCfmToApp(aghfp, aghfp_audio_disconnect_call_manager_active, hci_success);
}
}
/*
Handle Codec Connection request from the HF (AT+BCC).
This function performs the the actual actions of handling the AT+BCC (once the audio params have been
obtained from the app, i.e. after aghfpHandleWbsCodecConReq() and ).
*/
static void aghfpHandleWbsCodecConReqProcessing(AGHFP *aghfp)
{
/* Are we supporting WBS */
if (aghfp->use_wbs)
{
/* OK to initiate WBS Codec Negotiation. */
/* Send OK */
aghfpSendOk(aghfp);
/* If we haven't negotiatied a codec we need to do so.
If we have, we're gonna go ahead and use it here. */
if (aghfp->use_codec == 0)
{
/* Start codec negotiation with HF. */
if (aghfpWbsStartCodecNegotiation(aghfp, aghfp_negotiate_audio_at_hf))
{
aghfp->audio_connection_state = aghfp_audio_codec_connect;
}
}
else
{
if (!aghfpCallManagerActiveNotComplete(aghfp))
{
MAKE_AGHFP_MESSAGE(AGHFP_INTERNAL_AUDIO_CONNECT_REQ);
AGHFP_DEBUG((" Normal Audio Connection\n"));
message->audio_params = aghfp->audio_params;
message->packet_type = aghfp->audio_packet_type;
MessageSend(&aghfp->task, AGHFP_INTERNAL_AUDIO_CONNECT_REQ, message);
}
else
{
/* Save the audio packet type for Call Manager */
aghfpStoreAudioParams(aghfp, aghfp->audio_packet_type, &aghfp->audio_params);
/* Answer the call again now that the WBS negotiation is complete. */
aghfpManageCall(aghfp, CallEventAnswer, CallFlagOpenAudio);
}
}
}
else
{
/* WBS not supported, send ERROR. */
aghfpSendError(aghfp);
}
}
void AghfpStartAudioAfterAppCodecNegotiation(AGHFP * aghfp)
{
if (!aghfpCallManagerActiveNotComplete(aghfp))
{
MAKE_AGHFP_MESSAGE(AGHFP_INTERNAL_AUDIO_CONNECT_REQ);
AGHFP_DEBUG((" Normal Audio Connection\n"));
/* Assume that the audio parameters have been previously stored using aghfpStoreAudioParams() */
message->audio_params = aghfp->audio_params;
message->packet_type = aghfp->audio_packet_type;
MessageSend(&aghfp->task, AGHFP_INTERNAL_AUDIO_CONNECT_REQ, message);
}
else
{
/* Answer the call again now that the WBS negotiation is complete. */
aghfpManageCall(aghfp, CallEventAnswer, CallFlagOpenAudio);
}
}
/* Attempt to create a new audio (Synchronous) connection */
static void audioConnectRequest(AGHFP *aghfp, sync_pkt_type packet_type, const aghfp_audio_params *audio_params)
{
if ( !aghfpCallManagerActiveNotComplete(aghfp) )
{
if ( aghfpStoreAudioParams(aghfp, packet_type, audio_params) )
{
startAudioConnectRequest(aghfp);
}
else
{
/* Inform app that one or more parameters were invalid */
sendAudioConnectCfmToApp(aghfp, aghfp_audio_connect_invalid_params, hci_success);
}
}
else
{
/* Inform app that call manager is active, setting up or shutting down a call */
sendAudioConnectCfmToApp(aghfp, aghfp_audio_connect_call_manager_active, hci_success);
}
}
/****************************************************************************
NAME
aghfpHandleSyncConnectCfm
DESCRIPTION
Confirmation in response to an audio (SCO/eSCO) open request indicating
the outcome of the Synchronous connect attempt.
RETURNS
void
*/
void aghfpHandleSyncConnectCfm(AGHFP *aghfp, const CL_DM_SYNC_CONNECT_CFM_T *cfm)
{
if ( aghfp->audio_connection_state==aghfp_audio_connecting_esco ||
aghfp->audio_connection_state==aghfp_audio_connecting_sco ||
aghfp->audio_connection_state==aghfp_audio_accepting )
{
/* Informs us of the outcome of the Synchronous connect attempt */
if (cfm->status == hci_success)
{
/* store the audio parameters */
aghfp->audio_sink = cfm->audio_sink;
aghfp->rx_bandwidth = cfm->rx_bandwidth;
aghfp->tx_bandwidth = cfm->tx_bandwidth;
aghfp->link_type = cfm->link_type;
aghfp->audio_connection_state = aghfp_audio_connected;
/* Tell the app about this */
if ( aghfpCallManagerActiveNotComplete(aghfp) )
{ /* Audio connection request will have come from call manager */
aghfpManageCall(aghfp, CallEventAudioConnected, CallFlagSuccess);
}
else
{ /* Audio connection request will have come fom app */
sendAudioConnectCfmToApp(aghfp, aghfp_audio_connect_success, cfm->status);
}
}
else
{
/* Give up if we are either attempting to accept in incoming connection or error code
indicates it is pointless to continue. */
if ( cfm->status<=hci_error_host_timeout ||
(cfm->status>=hci_error_oetc_user && cfm->status<=hci_error_unknown_lmp_pdu) ||
aghfp->audio_connection_state==aghfp_audio_accepting )
{
aghfp->audio_connection_state = aghfp_audio_disconnected;
resetAudioParams(aghfp);
/* SCO/eSCO connect failed */
if ( aghfpCallManagerActiveNotComplete(aghfp) )
{ /* Audio connection request will have come from call manager */
aghfpManageCall(aghfp, CallEventAudioConnected, CallFlagFail);
}
else
{ /* Audio connection request will have come fom app */
sendAudioConnectCfmToApp(aghfp, aghfp_audio_connect_failure, cfm->status);
}
}
else
{
/* This step failed, move onto next stage of connection attempt */
continueAudioConnectRequest(aghfp);
}
}
}
else
{
/* Should never get here */
AGHFP_DEBUG(("aghfpHandleSyncConnectCfm invalid state %d",aghfp->audio_connection_state));
}
}
/*
Handle Codec Negotiation resopnse from the HF (AT+BCS)
*/
void aghfpHandleWbsCodecNegReq(AGHFP *aghfp, uint16 codecUUID16)
{
sync_pkt_type audio_packet_type = aghfp->audio_packet_type;
aghfp_audio_params audio_params = aghfp->audio_params;
uint16 codec; /* Codec bitmap used internally */
AGHFP_DEBUG(("aghfpHandleWbsCodecNegReq : "));
/* Translate from codec UUID16 format to internal bitmap. */
codec = WbsUuid16ToCodec((codecs_info*)&(aghfp->codecs_info), codecUUID16);
/* Note that one bit should be set in the bitmaps and it must be the same bit for success. */
if(aghfp->use_wbs && (aghfp->use_codec == codec))
{
AGHFP_DEBUG(("Starting WB-Speech eSCO\n"));
/* Send OK */
aghfpSendOk(aghfp);
/* audio_packet_type and audio_params already set to WBS values. */
/* Force connection create.
WBS SCO connection are always initiated by the AG. */
if(aghfp->wbs_negotiate_action != aghfp_negotiate_no_audio)
{
aghfp->wbs_negotiate_action = aghfp_negotiate_audio_at_ag;
}
}
else
{
AGHFP_DEBUG(("Falling back to request eSCO type\n"));
/* send Error */
aghfpSendError(aghfp);
/* Reset any saved codecs; Codec Negotiation aborted. */
aghfp->use_codec = 0;
/* For normal SCO we only set up the SCO here if the AG initiated the connection. */
if (aghfp->wbs_negotiate_action == aghfp_negotiate_audio_at_ag)
{ /* Start eSCO Connection */
audio_packet_type = aghfp->audio_packet_type;
audio_params = aghfp->audio_params;
audio_params.override_wbs = TRUE;
}
}
if (aghfp->wbs_negotiate_action == aghfp_negotiate_audio_at_ag)
{ /* Start eSCO Connection. We get here if we are setting up a WBS link or an AG initiated normal SCO. */
if (!aghfpCallManagerActiveNotComplete(aghfp))
{
MAKE_AGHFP_MESSAGE(AGHFP_INTERNAL_AUDIO_CONNECT_REQ);
AGHFP_DEBUG((" Normal Audio Connection\n"));
message->audio_params = audio_params;
message->packet_type = audio_packet_type;
MessageSend(&aghfp->task, AGHFP_INTERNAL_AUDIO_CONNECT_REQ, message);
}
else
{
/* Save the audio packet type for Call Manager */
aghfpStoreAudioParams(aghfp, audio_packet_type, &audio_params);
/* Answer the call again now that the WBS negotiation is complete. */
aghfpManageCall(aghfp, CallEventAnswer, CallFlagOpenAudio);
}
}
aghfp->wbs_negotiate_action = aghfp_negotiate_undefined; /* Reset flag to ensure it is correct next time */
}
