BCM4356 bluetooth HFP audio is not working with IMX8 Android Pie

[vinothkumars]

Dear All,

I am working on bcm4356 with imx8 android automotive.  A2DP profile is working fine. But, when I try bluetooth call hfp enabled properly but, unable to get any sound.

A2DP profile is working with Speaker ? But, same setup is not working for HFP.

Do, I needs to do any configuration ?

Please find log,

    audio_hw_primary: start_output_stream_primary... 0xe7551000, device 16777216, address bus0_media_out, mode 0
    Line 4311: 03-27 05:44:48.352  1829  4482 I audio_hw_primary: select_output_device(), headphone 0 ,headset 0 ,speaker 0, earpiece 0,
    Line 4312: 03-27 05:44:48.377  1829  4482 W audio_hw_primary: card 0, port 0 device 0x1000000
    Line 4313: 03-27 05:44:48.377  1829  4482 W audio_hw_primary: rate 48000, channel 2 period_size 0xc0
    Line 4489: 03-27 05:45:01.094  1829  4482 W audio_hw_primary: ret -32, pcm write 768 error wait error: hw 0x94700 app 0x94c80 avail 0x80
    Line 4490: 03-27 05:45:01.094  1829  4482 W audio_hw_primary: : Broken pipe
    Line 5734: 03-27 05:45:42.589  1829  3601 I audio_hw_primary: adev_set_mode mode 1
    Line 5735: 03-27 05:45:42.589  1829  3601 W audio_hw_primary: Leaving IN_CALL state, in_call=0, mode=1
    Line 5776: 03-27 05:45:45.344  1829  3601 W audio_hw_primary: do_out_standby... 0xe7551000
    Line 6000: 03-27 05:45:52.568  1829  3601 I audio_hw_primary: adev_set_mode mode 2
    Line 6001: 03-27 05:45:52.568  1829  3601 W audio_hw_primary: Entering IN_CALL state, in_call=0
    Line 6002: 03-27 05:45:52.568  1829  3601 W audio_hw_primary: no standby
    Line 6003: 03-27 05:45:52.568  1829  3601 I audio_hw_primary: select_output_device(), headphone 0 ,headset 0 ,speaker 0, earpiece 1,
    Line 6005: 03-27 05:45:52.570  1829  1829 D audio_hw_primary: out_set_parameters: enter: kvpairs: bus0_media_out=;routing=16777216
    Line 6006: 03-27 05:45:52.570  1829  1829 D audio_hw_primary: out_set_parameters: exit: code(0)
    Line 6009: 03-27 05:45:52.574  1829  3601 D audio_hw_primary: out_set_parameters: enter: kvpairs: bus0_media_out=;routing=16777216
    Line 6010: 03-27 05:45:52.574  1829  3601 D audio_hw_primary: out_set_parameters: exit: code(0)
    Line 6099: 03-27 05:45:52.751  1829  3601 D audio_hw_primary: adev_set_parameters: enter: hfp_set_sampling_rate=8000
    Line 6100: 03-27 05:45:52.751  1829  3601 I audio_hw_primary: hfp_set_sampling_rate, 8000
    Line 6101: 03-27 05:45:52.751  1829  3601 D audio_hw_primary: adev_set_parameters: exit with code(0)
    Line 6102: 03-27 05:45:52.752  1829  3601 D audio_hw_primary: adev_set_parameters: enter: hfp_enable=true
    Line 6103: 03-27 05:45:52.752  1829  3601 I audio_hw_primary: prepare bt rx task
    Line 6104: 03-27 05:45:52.752  1829  3601 D audio_hw_primary: get_card_for_name: name: bt-sai-audio, card: 2
    Line 6105: 03-27 05:45:52.752  1829  3601 I audio_hw_primary: set pcm_config_sco_in.period_size to 32
    Line 6106: 03-27 05:45:52.752  1829  3601 I audio_hw_primary: open sco for read, card 2, port 0
    Line 6107: 03-27 05:45:52.752  1829  3601 I audio_hw_primary: rate 8000, channel 2, period_size 0x20, period_count 8
    Line 6108: 03-27 05:45:52.759  1829  3601 I audio_hw_primary: after pcm open, rate 8000, channel 2, period_size 0x24, period_count 8
    Line 6109: 03-27 05:45:52.760  1829  3601 I audio_hw_primary: create_resampler rsmpl_sco_rx, in rate 8000, out rate 48000
    Line 6111: 03-27 05:45:52.761  1829  3601 I audio_hw_primary: sco_rx_task create ret 0, tid_sco_rx -429901456
    Line 6112: 03-27 05:45:52.761  1829  3601 I audio_hw_primary: prepare bt tx task
    Line 6113: 03-27 05:45:52.761  1829  3601 D audio_hw_primary: get_card_for_name: name: bt-sai-audio, card: 2
    Line 6114: 03-27 05:45:52.761  1829  3601 I audio_hw_primary: open sco for write, card 2, port 0
    Line 6115: 03-27 05:45:52.761  1829  4597 I audio_hw_primary: enter sco_rx_task, pcm_sco_rx frames 36, szie 144
    Line 6116: 03-27 05:45:52.761  1829  3601 I audio_hw_primary: rate 8000, channel 2, period_size 0xc0
    Line 6117: 03-27 05:45:52.761  1829  4597 I audio_hw_primary: SelectPcm, curDev 0x1000000, standby 1, hdmi pcm 0x0, normal pcm 0x0
    Line 6118: 03-27 05:45:52.761  1829  4597 I audio_hw_primary: SelectPcm, primary output is standy, open it
    Line 6119: 03-27 05:45:52.761  1829  4597 I audio_hw_primary: start_output_stream_primary... 0xe7551000, device 16777216, address bus0_media_out, mode 2
    Line 6120: 03-27 05:45:52.764  1829  3601 W audio_hw_primary:  open mic, card 0, port 0
    Line 6121: 03-27 05:45:52.764  1829  3601 W audio_hw_primary: rate 48000, channel 2, period_size 0x480
    Line 6122: 03-27 05:45:52.783  1829  4597 W audio_hw_primary: card 0, port 0 device 0x1000000
    Line 6123: 03-27 05:45:52.783  1829  4597 W audio_hw_primary: rate 48000, channel 2 period_size 0xc0
    Line 6124: 03-27 05:45:52.784  1829  3601 I audio_hw_primary: create_resampler rsmpl_sco_tx, in rate 48000, out rate 8000
    Line 6126: 03-27 05:45:52.785  1829  3601 I audio_hw_primary: sco_tx_task create ret 0, tid_sco_tx -431490704
    Line 6127: 03-27 05:45:52.785  1829  3601 I audio_hw_primary: sco_task_create, ret 0
    Line 6128: 03-27 05:45:52.785  1829  4598 I audio_hw_primary: enter sco_tx_task, pcm_cap frames 1152, szie 4608
    Line 6129: 03-27 05:45:52.785  1829  3601 D audio_hw_primary: adev_set_parameters: exit with code(0)
    Line 6131: 03-27 05:45:52.787  1829  3601 D audio_hw_primary: adev_set_parameters: enter: hfp_volume=11
    Line 6132: 03-27 05:45:52.788  1829  3601 D audio_hw_primary: adev_set_parameters: exit with code(0)

Thank You,

Vinoth S,

Babu‌

abdulredwan‌

[prashantha]

@vinothkumars 

I am facing the same issue with Bluetooth HFP audio on PhyBOARD-Pollux with phyCORE-i.MX 8M Plus module

Android 11 OS.

It would be great if you provide a patch so that I can try it at my end. Thanks in advance.

My Email ID:prashantha.haveri@moschip.com.

[shabna_m]

@vinothkumars 

Hi,

we are also facing the same issue....Logs are same as that of yours.

Did you succeed to solve the issue. If so, Could you please help us to resolve the issue?

[vinothkumars]

Hi @shabna_m 

No Still I am also facing the same issue.

But, trying to workout the HFP by configuring the ALSA and Application layer. It will work only mic so far. Send your mail id. I will provide the patch and you can try your end.

[avdhutpandya]

Hi @vinothkumars ,

I am facing the same issue with Bluetooth HFP audio on iMX8QXP Automotive 11 OS.

It would be great if you provide a patch so that I can try it at my end. Thanks in advance.

My Email ID: avdhut.pandya@volansys.com

[shabna_m]

@vinothkumars Thank you very much for your response.

Please share the patches in the following mail id.

shabna.m@acsiatech.com

[vinothkumars]

We Changed the  hfp_set_sampling_rate to 48k. But same noise observed from speaker side.

Here I have some question,

1. Do I needs to update the broadcom firmware on Android 9 Automotive ?

2. Do I needs to do any hardware changes ?

3. Do I needs to do any software changes ?

Thanks & Regards,

Vinoth S,

[vinothkumars]

Hi,

We got some noise from speaker during a call when using a Bluetooth connection.

Do we needs to do any configuration ?

We got some observation from codec side,

Input Sampling Rate - 48k

Output Sampling Rate - 8k

Let me know, Which file do I needs to configure sampling rate ?

Thanks & Regards,

VInoth S,

[vinothkumars]

Hi,

From this log I come to know, trying to connect headset

Telecom : BluetoothRouteManager: getBluetoothAudioConnectedDevice: no headset service available.: (...->CS.crCo->H.CS.crCo->H.CS.crCo.pICR)->CSW.hCCC->CILH.sL->CILH.oQC->ICF.oCFC->CAMSM.pM_2002->CARSM.pM_SWITCH_FOCUS@E-E-ACk

Do we needs to do any configuration for wired speaker ?

Thank You,

VInoth S,