/****************************************************************************
NAME
A2dpRouteAudio
DESCRIPTION
attempt to connect an audio connection from a2dp device via the passed in
deviceID
RETURNS
*/
void A2dpRouteAudio(uint8 Index, Sink sink)
{
AUD_DEBUG(("AudioA2dpRoute Index[%x] Sink[%x]\n", Index , (uint16) sink )) ;
/* ensure sink is valid before attempting the connection */
if(sink)
{
/* Use an instance of A2DP message structure for initial volume setting */
AUDIO_PLUGIN_SET_VOLUME_A2DP_MSG_T volumeInitAudio;
a2dp_codec_settings * codec_settings;
AUD_DEBUG(("AudioA2dpRoute Index[%d] DevId[%x]\n", Index , theSink.a2dp_link_data->device_id[Index] )) ;
/* get the rate information for connection */
codec_settings = A2dpCodecGetSettings(theSink.a2dp_link_data->device_id[Index], theSink.a2dp_link_data->stream_id[Index]);
/* ensure stream is valid */
if(codec_settings)
{
AUDIO_MODE_T mode = AUDIO_MODE_CONNECTED;
int16 a2dp_gain_dB;
/* determine additional features applicable for this audio plugin */
/* Volume info is sent to DSP in dB units */
a2dp_gain_dB = VolumeConvertStepsToDB(theSink.volume_levels->a2dp_volume[Index].masterVolume, &theSink.conf1->volume_config.volume_control_config, DSP_DB_SCALE);
/* check for MUTE volume level and mute as appropriate */
if (theSink.volume_levels->a2dp_volume[Index].masterVolume == VOLUME_A2DP_MUTE_GAIN)
{
mode = AUDIO_MODE_MUTE_SPEAKER;
}
/* initialise the AudioConnect extra parameters required to pass in additional codec information */
if (codec_settings->codecData.latency_reporting) /* latency reporting retrieved from a2dp library */
{
/* TODO: obtain settings from PS, probably based on codec type */
theSink.a2dp_link_data->a2dp_audio_connect_params.latency.last = 150;
theSink.a2dp_link_data->a2dp_audio_connect_params.latency.target = 150/5;
theSink.a2dp_link_data->a2dp_audio_connect_params.latency.change = 10/5;
theSink.a2dp_link_data->a2dp_audio_connect_params.latency.period = 500/100;
}
theSink.a2dp_link_data->a2dp_audio_connect_params.packet_size = codec_settings->codecData.packet_size; /* Packet size retrieved from a2dp library */
theSink.a2dp_link_data->a2dp_audio_connect_params.content_protection = codec_settings->codecData.content_protection; /* content protection retrieved from a2dp library */
theSink.a2dp_link_data->a2dp_audio_connect_params.clock_mismatch = theSink.a2dp_link_data->clockMismatchRate[Index]; /* clock mismatch rate for this device */
theSink.a2dp_link_data->a2dp_audio_connect_params.mode_params = &theSink.a2dp_link_data->a2dp_audio_mode_params; /* EQ mode and Audio enhancements */
#ifdef INCLUDE_A2DP_EXTRA_CODECS
#ifdef INCLUDE_FASTSTREAM
theSink.a2dp_link_data->a2dp_audio_connect_params.voice_rate = codec_settings->codecData.voice_rate; /* voice rate retrieved from a2dp library */
theSink.a2dp_link_data->a2dp_audio_connect_params.bitpool = codec_settings->codecData.bitpool; /* bitpool retrieved from a2dp library */
theSink.a2dp_link_data->a2dp_audio_connect_params.format = codec_settings->codecData.format; /* format retrieved from a2dp library */
#endif
#ifdef INCLUDE_APTX
theSink.a2dp_link_data->a2dp_audio_connect_params.channel_mode = codec_settings->channel_mode; /* aptX channel mode */
#endif
#ifdef INCLUDE_APTX_ACL_SPRINT
theSink.a2dp_link_data->a2dp_audio_connect_params.aptx_sprint_params = codec_settings->codecData.aptx_sprint_params; /* aptX LL params */
#endif
#endif
#ifdef ENABLE_SOUNDBAR
theSink.a2dp_link_data->seid[Index] = codec_settings->seid;
#endif /* ENABLE_SOUNDBAR */
#ifdef ENABLE_SUBWOOFER
/* set the sub woofer link type prior to passing to audio connect */
theSink.a2dp_link_data->a2dp_audio_connect_params.sub_woofer_type = AUDIO_SUB_WOOFER_NONE;
theSink.a2dp_link_data->a2dp_audio_connect_params.sub_sink = NULL;
/* bits inverted in dsp plugin */
sinkAudioSetEnhancement(MUSIC_CONFIG_SUB_WOOFER_BYPASS,TRUE);
#else
/* no subwoofer support, set the sub woofer bypass bit in music config message sent o dsp */
sinkAudioSetEnhancement(MUSIC_CONFIG_SUB_WOOFER_BYPASS,FALSE);
#endif
AUD_DEBUG(("AudioA2dpRoute Index[%d] DevId[%x] Gain[%x] Codec[%x] ClkMismatch[%x] EQ[%x] packet_size[%u]\n",
Index ,
theSink.a2dp_link_data->device_id[Index],
a2dp_gain_dB,
codec_settings->seid,
theSink.a2dp_link_data->a2dp_audio_connect_params.clock_mismatch,
(uint16)theSink.a2dp_link_data->a2dp_audio_connect_params.mode_params,
theSink.a2dp_link_data->a2dp_audio_connect_params.packet_size)) ;
audioIndicateCodec( codec_settings->seid );
#ifdef ENABLE_SOUNDBAR
/* Set the LE SCAN priority to Low since we are Streaming It is possible
that we might be receiving less or no LE adverts when streaming is in progress*/
InquirySetPriority(inquiry_low_priority);
#endif /* ENABLE_SOUNDBAR */
/* We need to set A2DP volume info as the audio is in mute state after connection */
volumeInitAudio.volume_type = theSink.conf1->volume_config.volume_control_config.volume_type;
volumeInitAudio.codec_task = theSink.codec_task;
volumeInitAudio.master_gain = a2dp_gain_dB;
volumeInitAudio.system_gain = theSink.conf1->volume_config.volume_control_config.system_volume;
volumeInitAudio.trim_gain_left = theSink.conf1->volume_config.volume_control_config.trim_volume_left;
volumeInitAudio.trim_gain_right= theSink.conf1->volume_config.volume_control_config.trim_volume_right;
volumeInitAudio.device_trim_master = theSink.conf1->volume_config.volume_control_config.device_trim_master;
volumeInitAudio.device_trim_slave = theSink.conf1->volume_config.volume_control_config.device_trim_slave;
volumeInitAudio.tones_gain = VolumeConvertStepsToDB(((TonesGetToneVolume(FALSE) * theSink.conf1->volume_config.volume_control_config.no_of_steps)/VOLUME_NUM_VOICE_STEPS), &theSink.conf1->volume_config.volume_control_config, DSP_DB_SCALE);
volumeInitAudio.mute_active = theSink.sink_enable_present;
/* connect the audio via the audio plugin */
AudioConnect(getA2dpPlugin(codec_settings->seid),
sink ,
AUDIO_SINK_AV ,
theSink.codec_task,
volumeInitAudio.tones_gain,
codec_settings->rate,
theSink.conf2->audio_routing_data.PluginFeatures ,
mode,
AUDIO_ROUTE_INTERNAL,
powerManagerGetLBIPM(),
&theSink.a2dp_link_data->a2dp_audio_connect_params,
FALSE,
&theSink.task);
AudioSetVolumeA2DP(&volumeInitAudio);
#ifdef ENABLE_SUBWOOFER
/* set subwoofer volume level */
updateSwatVolume(theSink.volume_levels->a2dp_volume[Index].masterVolume);
SWAT_DEBUG(("SW : Send sample rate to Sub, rate is %ld\n",codec_settings->rate));
/* send sample rate to sub */
sendSampleRateToSub(codec_settings->rate);
#endif
audioControlLowPowerCodecs (FALSE) ;
/* caller responsible for freeing memory */
freePanic(codec_settings);
#ifdef ENABLE_AVRCP
if(theSink.features.avrcp_enabled)
{
UpdateAvrpcMessage_t * lUpdateMessage = mallocPanic ( sizeof(UpdateAvrpcMessage_t) ) ;
lUpdateMessage->bd_addr = theSink.a2dp_link_data->bd_addr[Index];
/* any AVRCP commands should be targeted to the device which has A2DP audio routed */
MessageSend( &theSink.task, EventSysSetActiveAvrcpConnection, lUpdateMessage);
}
#endif
}
/* update the current sink being routed */
theSink.routed_audio = sink;
}
}
/****************************************************************************
NAME
usbGetVolume
DESCRIPTION
Extract USB volume setting from USB lib levels
RETURNS
Volume to pass to csr_usb_audio_plugin
*/
static uint16 usbGetVolume(AUDIO_MODE_T* mode)
{
uint16 result;
bool mic_muted;
bool spk_muted = FALSE;
/* Get vol settings from USB lib */
usb_device_class_audio_levels levels;
UsbDeviceClassGetValue(USB_DEVICE_CLASS_GET_VALUE_AUDIO_LEVELS, (uint16*)&levels);
/* limit check volume levels returned */
if((levels.out_l_vol < 0)||(levels.out_l_vol > VOLUME_A2DP_MAX_LEVEL))
levels.out_l_vol = VOLUME_A2DP_MAX_LEVEL;
if((levels.out_r_vol < 0)||(levels.out_r_vol > VOLUME_A2DP_MAX_LEVEL))
levels.out_r_vol = VOLUME_A2DP_MAX_LEVEL;
USB_DEBUG(("USB: Gain L %X R %X\n", levels.out_l_vol, levels.out_r_vol));
USB_DEBUG(("USB: Mute M %X S %X\n", levels.in_mute, levels.out_mute));
if(theSink.usb.config.plugin_type == usb_plugin_stereo)
{
/* Use A2DP gain mappings */
uint8 l_vol = theSink.conf1->gVolMaps[ levels.out_l_vol ].A2dpGain;
uint8 r_vol = theSink.conf1->gVolMaps[ levels.out_r_vol ].A2dpGain;
/* Convert A2DP gain setting to mute/gain */
spk_muted = (r_vol == 0 && l_vol == 0);
if(r_vol > 0) r_vol --;
if(l_vol > 0) l_vol --;
/* Pack result */
result = ((l_vol << 8) | r_vol);
displayUpdateVolume((levels.out_l_vol + levels.out_r_vol + 1) / 2);
#ifdef ENABLE_SUBWOOFER
updateSwatVolume((levels.out_l_vol + levels.out_r_vol + 1) / 2);
#endif
}
else
{
/* Use HFP gain mappings */
result = theSink.conf1->gVolMaps[ levels.out_l_vol ].VolGain;
displayUpdateVolume(levels.out_l_vol);
#ifdef ENABLE_SUBWOOFER
updateSwatVolume(levels.out_l_vol);
#endif
}
/* Mute if muted by host or not supported */
mic_muted = levels.in_mute || !USB_CLASS_ENABLED(USB_DEVICE_CLASS_TYPE_AUDIO_MICROPHONE);
spk_muted = spk_muted || levels.out_mute || !USB_CLASS_ENABLED(USB_DEVICE_CLASS_TYPE_AUDIO_SPEAKER);
if(mode)
{
if(mic_muted && spk_muted)
*mode = AUDIO_MODE_MUTE_BOTH;
else if(mic_muted)
*mode = AUDIO_MODE_MUTE_MIC;
else if(spk_muted)
*mode = AUDIO_MODE_MUTE_SPEAKER;
else
*mode = AUDIO_MODE_CONNECTED;
}
return result;
}
/****************************************************************************
NAME
sinkFmRxAudioConnect
DESCRIPTION
connects the I2S FM audio via the FM audio plugin which allows tones play
and volume control
RETURNS
nothing
*/
void sinkFmRxAudioConnect(void)
{
AUDIO_PLUGIN_SET_VOLUME_A2DP_MSG_T volumeDsp;
uint16 volume_dB = VolumeConvertStepsToDB(theSink.volume_levels->fm_volume.masterVolume, &theSink.conf1->volume_config.volume_control_config, DSP_DB_SCALE);
uint16 mode = (theSink.volume_levels->fm_volume.masterVolume == VOLUME_A2DP_MUTE_GAIN) ? AUDIO_MODE_MUTE_SPEAKER : AUDIO_MODE_CONNECTED;
FM_DEBUG(("sinkFmRxAudioConnect \n"));
theSink.volume_levels->fm_volume.tonesVolume = VolumeConvertStepsToDB(((TonesGetToneVolume(FALSE) * theSink.conf1->volume_config.volume_control_config.no_of_steps)/VOLUME_NUM_VOICE_STEPS), &theSink.conf1->volume_config.volume_control_config, DSP_DB_SCALE);
/* Make sure we're using correct parameters for FM audio */
theSink.a2dp_link_data->a2dp_audio_connect_params.mode_params = &theSink.a2dp_link_data->a2dp_audio_mode_params;
#ifdef ENABLE_SUBWOOFER
/* set the sub woofer link type prior to passing to audio connect */
theSink.a2dp_link_data->a2dp_audio_connect_params.sub_woofer_type = AUDIO_SUB_WOOFER_NONE;
theSink.a2dp_link_data->a2dp_audio_connect_params.sub_sink = NULL;
/* bits inverted in dsp plugin */
sinkAudioSetEnhancement(MUSIC_CONFIG_SUB_WOOFER_BYPASS,TRUE);
#else
/* no subwoofer support, set the sub woofer bypass bit in music config message sent o dsp */
sinkAudioSetEnhancement(MUSIC_CONFIG_SUB_WOOFER_BYPASS,FALSE);
#endif
FM_DEBUG(("FM: Routing (Vol %d)\n", theSink.volume_levels->fm_volume.masterVolume));
AudioConnect((TaskData *)&csr_fm_decoder_plugin,
theSink.routed_audio,
AUDIO_SINK_FM,
theSink.codec_task,
volume_dB,
FM_RATE,
theSink.conf2->audio_routing_data.PluginFeatures,
mode,
AUDIO_ROUTE_INTERNAL,
powerManagerGetLBIPM(),
&theSink.a2dp_link_data->a2dp_audio_connect_params,
&theSink.task);
audioControlLowPowerCodecs (FALSE) ;
/* update volume via a2dp common plugin */
volumeDsp.volume_type = theSink.conf1->volume_config.volume_control_config.volume_type;
volumeDsp.codec_task = theSink.codec_task;
volumeDsp.master_gain = volume_dB;
volumeDsp.tones_gain = theSink.volume_levels->fm_volume.tonesVolume;
volumeDsp.system_gain = theSink.conf1->volume_config.volume_control_config.system_volume;
volumeDsp.trim_gain_left = theSink.conf1->volume_config.volume_control_config.trim_volume_left;
volumeDsp.trim_gain_right= theSink.conf1->volume_config.volume_control_config.trim_volume_right;
volumeDsp.device_trim_master = theSink.conf1->volume_config.volume_control_config.device_trim_master;
volumeDsp.device_trim_slave = theSink.conf1->volume_config.volume_control_config.device_trim_slave;
volumeDsp.mute_active = theSink.sink_mute_status;
AudioSetVolumeA2DP ( &volumeDsp);
#ifdef ENABLE_SUBWOOFER
/* set subwoofer volume level */
updateSwatVolume(volume_dB);
#endif
/* tune to stored frequency after initilising the I2S interface otherwise FM receiver
may be in an unknown state which may not work reliably */
fmRxTuneFrequency(theSink.conf2->sink_fm_data.fmRxTunedFreq);
}