HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

Wobaffet — Wed, 18 Dec 2024 15:05:47 GMT

Hello,

We are trying to implement A2DP and HFP with i.MX8MP custom board. We can load the firmware and connect to any BT device, however when we try to

root@imx8mp-lpddr4-evk:~# pactl list cards Card #0 Name: alsa_card.platform-sound-bt-sco Driver: module-alsa-card.c Owner Module: 6 Properties: alsa.card = "1" alsa.card_name = "bt-sco-audio" alsa.long_card_name = "bt-sco-audio" device.bus_path = "platform-sound-bt-sco" sysfs.path = "/devices/platform/sound-bt-sco/sound/card1" device.form_factor = "internal" device.string = "1" device.description = "Built-in Audio" module-udev-detect.discovered = "1" device.icon_name = "audio-card" Profiles: input:mono-fallback: Mono Input (sinks: 0, sources: 1, priority: 1, available: yes) output:mono-fallback: Mono Output (sinks: 1, sources: 0, priority: 100, available: yes) output:mono-fallback+input:mono-fallback: Mono Output + Mono Input (sinks: 1, sources: 1, priority: 101, available: yes) off: Off (sinks: 0, sources: 0, priority: 0, available: yes) Active Profile: output:mono-fallback+input:mono-fallback Ports: analog-input: Analog Input (type: Analog, priority: 10000, latency offset: 0 usec, availability unknown) Part of profile(s): input:mono-fallback, output:mono-fallback+input:mono-fallback analog-output: Analog Output (type: Analog, priority: 9900, latency offset: 0 usec, availability unknown) Part of profile(s): output:mono-fallback, output:mono-fallback+input:mono-fallback Card #1 Name: alsa_card.platform-sound-tlv320aic31xx Driver: module-alsa-card.c Owner Module: 7 Properties: alsa.card = "0" alsa.card_name = "tlv320aic31xx-Codec" alsa.long_card_name = "tlv320aic31xx-Codec" device.bus_path = "platform-sound-tlv320aic31xx" sysfs.path = "/devices/platform/sound-tlv320aic31xx/sound/card0" device.form_factor = "internal" device.string = "0" device.description = "Built-in Audio" module-udev-detect.discovered = "1" device.icon_name = "audio-card" Profiles: input:stereo-fallback: Stereo Input (sinks: 0, sources: 1, priority: 51, available: yes) output:stereo-fallback: Stereo Output (sinks: 1, sources: 0, priority: 5100, available: yes) output:stereo-fallback+input:stereo-fallback: Stereo Output + Stereo Input (sinks: 1, sources: 1, priority: 5151, available: yes) off: Off (sinks: 0, sources: 0, priority: 0, available: yes) Active Profile: output:stereo-fallback+input:stereo-fallback Ports: analog-input: Analog Input (type: Analog, priority: 10000, latency offset: 0 usec, availability unknown) Part of profile(s): input:stereo-fallback, output:stereo-fallback+input:stereo-fallback analog-output-speaker: Speakers (type: Speaker, priority: 10000, latency offset: 0 usec, availability unknown) Properties: device.icon_name = "audio-speakers" Part of profile(s): output:stereo-fallback, output:stereo-fallback+input:stereo-fallback

We can't detect a card for the connected devices as can be seen on this guide. Even though we can detect Audio sink feature like this

Device B8:D5:0B:FA:89:8E (public) Name: Busra JBL Alias: Busra JBL Class: 0x00240414 Icon: audio-card Paired: yes Bonded: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: CSR (0000fe8f-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (65786365-6c70-6f69-6e74-2e636f6d0000) Modalias: bluetooth:v000ApFFFFdFFFF

We are on 5.15 kernel and our distro has these packages

IMAGE_INSTALL:append = "dbus packagegroup-tools-bluetooth pulseaudio pulseaudio-server pulseaudio-miscbluealsa alsa-lib bluez5 bluez5-noinst-tools bluez5-obex openobex obexftp"

When we try to load discover module we get

root@imx8mp-lpddr4-evk:~# pactl load-module module-bluez5-discover Failure: Module initialization failed

Also the list of pactl modules are attached.

What could be the issue here?

Thanks!

Re: HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

Wobaffet — Thu, 19 Dec 2024 20:59:51 GMT

reminder.

Re: HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

jimmychan — Tue, 24 Dec 2024 09:45:58 GMT

Hello,

Could you show me how you connect the module?

What is the boot up log?

Please also send me the device tree file of your board for checking.

Thanks.

Best regards,

Jimmy

i.MX ProcessorsのトピックRe: HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

Re: HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module

Re: HFP and A2DP IMPLEMENTATION WITH 88W8987 Based BT module