Open chipdipru opened 3 days ago
You would need to compile the Pi 4/5 kernels (https://github.com/raspberry-vanilla/android_kernel_manifest/tree/android-15.0) with SND_BCM2708_SOC_CHIPDIP_DAC
enabled (https://github.com/raspberry-vanilla/android_kernel_brcm_rpi/blob/android-15.0/arch/arm64/configs/android_rpi4_defconfig#L4513 & https://github.com/raspberry-vanilla/android_kernel_brcm_rpi/blob/android-15.0/arch/arm64/configs/android_rpi5_defconfig#L4521). Edit. And looking at the overlay (https://github.com/raspberry-vanilla/android_kernel_brcm_rpi/blob/android-15.0/arch/arm/boot/dts/overlays/chipdip-dac-overlay.dts) it also requires SND_SOC_SPDIF
enabled.
I don't have the hardware to test so pull requests are welcome once you've tested this works on the kernel side.
The project's wiki provides documentation on how to change the audio output device on Raspberry Vanilla builds. https://github.com/raspberry-vanilla/android_local_manifest/wiki/Audio
It seems that the docs haven't been updated in a while and on Pi 5 the ALSA device number for the DAC is likely 2 (i.e. persist.audio.pcm.card=2
). You can use e.g. cat /proc/asound/cards
to verify the cards numbers.
Hi @KonstaT It looks like the I2S audio card ChipDipDAC is turned off.
# CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC is not set
Please help me turn on the ChipDipDAC as the main audio output.