Orange Pi 3B: Vendor: Enable audio via headphone jack

[dust-7]

Description

In vendor kernel, audio via headphone jack does not work out of the box. Updating alsamixer configurations as hinted in vendor's build fixes this.

Also taking this chance to rename audio devices. This is especially useful for mainline kernel, which displays both HDMI and headphone jack audio devices as "Analog Output - Built-in Audio".

How Has This Been Tested?

Tested vendor and edge images on v2.1 board. On both images, audio works out of the box via HDMI and headphone jack. Audio device names updated accordingly.

• Vendor build: ./compile.sh build BOARD=orangepi3b BRANCH=vendor BUILD_DESKTOP=yes BUILD_MINIMAL=no DESKTOP_APPGROUPS_SELECTED= DESKTOP_ENVIRONMENT=gnome DESKTOP_ENVIRONMENT_CONFIG_NAME=config_base KERNEL_CONFIGURE=no KERNEL_GIT=shallow RELEASE=noble
• Edge build: ./compile.sh build BOARD=orangepi3b BRANCH=edge BUILD_DESKTOP=yes BUILD_MINIMAL=no DESKTOP_APPGROUPS_SELECTED= DESKTOP_ENVIRONMENT=gnome DESKTOP_ENVIRONMENT_CONFIG_NAME=config_base KERNEL_CONFIGURE=no KERNEL_GIT=shallow RELEASE=noble

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings

[defencedog]

Excellent work

[defencedog]

Repeated build command with success! Audio out works & sound devices name are properly identified.

In mainline kernel 6.6 microphone was also detected & I was able to capture sounds. Here it is not :( I used same cable (Standard Nokia audio out/in combo)

git clone --depth=1 --branch=main https://github.com/armbian/build
cd build
wget -O config/boards/orangepi3b.csc https://github.com/armbian/build/raw/e4587ac85441cfd15bb6bc6470465ee31fc90430/config/boards/orangepi3b.csc
wget -O packages/bsp/common/usr/lib/armbian/armbian-audio-config https://github.com/armbian/build/raw/e4587ac85441cfd15bb6bc6470465ee31fc90430/packages/bsp/common/usr/lib/armbian/armbian-audio-config
 ./compile.sh build BOARD=orangepi3b BRANCH=vendor BUILD_DESKTOP=yes BUILD_MINIMAL=no DESKTOP_APPGROUPS_SELECTED='desktop_tools editors internet multimedia programming remote_desktop' DESKTOP_ENVIRONMENT=gnome DESKTOP_ENVIRONMENT_CONFIG_NAME=config_base KERNEL_CONFIGURE=no KERNEL_GIT=shallow RELEASE=noble EXTRAWIFI=yes  EXT=mesa-vpu SHARE_LOG=yes HEADERS_INSTALL=yes

[defencedog]

@dust-7 I think the only remaining stuff for this SBC is capturing audio using 3.5mm jack. In this mainline kernel image it's is working properly https://github.com/defencedog/orangepi3b_v2.1/tree/main/MicroLinux_Armbian_Orangepi3b_jammy_edge_6.6.4

[dust-7]

Mic via headphone jack can work. You need to use PulseAudio Volume Control (pavucontrol) to manually select the right capture device. However, it only works occasionally, and when it does, the channel is noisy. I suspect that is due to the RK817 codec driver in vendor kernel.

I do not intend to investigate or improve the mic issue any further.

[Gi-0n]

@dust-7 really appreciate your contributions to the opi3b board. I have a question. I use armbian community 24.11-trunk 358 (the most recent) and it turns out that the audio through the jack is not detected. Whatever is corrected, I always have audio through HDMI and I don't have to be switching between (Analog output and headphone output). When I connect my headphones, I do notice noise (interference), something that didn't happen before. What adjustments should I make to solve the lack of audio through the 3.5mm jack?. Thanks

[dust-7]

I use armbian community 24.11-trunk 358 (the most recent)

Did you download the image (provide URL), build it (provide build command), or update from apt? Which distro?

... and I don't have to be switching between (Analog output and headphone output).

Don't understand what you're saying here.

When I connect my headphones, I do notice noise (interference)

For me, I have not heard noise from headphone jack before and after this commit.

---

How this commit enables audio via headphone jack is by selecting the correct Playback Path in AlsaMixer. You can verify this like so:

1. Go to terminal.
2. Type alsamixer.
3. Press F6, then select default:0 rockchip-rk809 (this selects the headphone jack sound card).
4. Verify item Playback Path has value HP.
   
5. Verify audio coming out via headphone jack using command: speaker-test -Dhw:rockchiprk809 -c2.

[defencedog]

@Gi-0n this noble release works. Only microphone doesn't work as @dust-7 don't plan to.pursue it further
orangepi3b_v2.1/Armbian_Noble_rk6.1.75 at main · defencedog/orangepi3b_v2.1
https://github.com/defencedog/orangepi3b_v2.1/tree/main/Armbian_Noble_rk6.1.75

[Gi-0n]

By following the 5 steps I was able to activate the audio, the playback path had another configuration. I use Armbian 24.11 trunk-358 updated by apt. Thanks for the indication @dust-7 @defencedog