IQaudio Codec Zero

jossa · March 7, 2021 at 4:01 PM

Hello,

I'm new to LibreELEC. I have just installed it on a Raspberry Pi 4 and I'm having troubles getting my DAC to work, this is an IQaudio Codec Zero (IQaudio Codec Zero).

I have used this in the past with Raspbian and ALSA without issues.

In the config.txt I have added the following line:

Code

dtoverlay=iqaudio-codec

When I go to Setup > System > Audio I see the DAC listed under the Audio output device. The options I have there are:

- ALSA: Default (IQaudIOCODEC IQaudIO CODEC HiFi v1.2 da7213-hifi-0)

- ALSA: IQaudIOCODEC, IQaudIO CODEC HiFi v1.2 da7213-hifi-0

- PI: HDMI

- PI: Analogue

- PI HDMI and Analogue

- PULSE: Default, Bluetooth Audio (PULSEAUDIO)

However, I select the first or the second option I have no sound... with the 3rd option I have the sound through my TV speakers.

Logging in via SSH I can see the audio card with aplay -l:

Code

LibreELEC:~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: IQaudIOCODEC [IQaudIOCODEC], device 0: IQaudIO CODEC HiFi v1.2 da7213-hifi-0 [IQaudIO CODEC HiFi v1.2 da7213-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
LibreELEC:~ # aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=IQaudIOCODEC
    IQaudIOCODEC, IQaudIO CODEC HiFi v1.2 da7213-hifi-0
    Default Audio Device
sysdefault:CARD=IQaudIOCODEC
    IQaudIOCODEC, IQaudIO CODEC HiFi v1.2 da7213-hifi-0
    Default Audio Device

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And with aslamixer I can adjust the volumes. However, If I run the speaker test from the command line I do not hear any sound and this ends with the following error:

Code

LibreELEC:~ # speaker-test -Dsysdefault:IQaudIOCODEC -c2

speaker-test 1.1.9

Playback device is sysdefault:IQaudIOCODEC
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 128 to 131072
Period size range from 64 to 65536
Using max buffer size 131072
Periods = 4
was set period_size = 32768
was set buffer_size = 131072
 0 - Front Left
 1 - Front Right
Write error: -5,Input/output error
xrun_recovery failed: -5,Input/output error
Transfer failed: Input/output error

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Modules seem to be ok:

Code

LibreELEC:~ # lsmod | grep snd
snd_soc_da7213         40960  1
snd_soc_iqaudio_codec    16384  0
snd_soc_bcm2835_i2s    20480  2

However, seems there is a problem with the codec:

Code

LibreELEC:~ # dmesg | grep codec
[   16.641114] snd-rpi-iqaudio-codec soc:sound: ASoC: CPU DAI (null) not registered - will retry
[   16.642229] snd-rpi-iqaudio-codec soc:sound: ASoC: CODEC DAI da7213-hifi not registered - will retry
[   16.689359] snd-rpi-iqaudio-codec soc:sound: ASoC: CODEC DAI da7213-hifi not registered - will retry
[   16.796742] snd-rpi-iqaudio-codec soc:sound: da7213-hifi <-> fe203000.i2s mapping ok
[   16.989577] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   16.996240] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   16.996276] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   17.002713] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   17.002746] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   17.007285] : bcm2835_codec_get_supported_fmts: port has more encoding than we provided space for. Some are dropped.
[   17.008556] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   17.008577] bcm2835-codec bcm2835-codec: Loaded V4L2 isp

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Any idea on what I could try to solve this?

Thank you!

**Da Flex** · March 8, 2021 at 5:34 PM Official Post

Sorry, but RTFM. It says you have to comment out dtparam=audio=on at config.txt and reboot.

jossa · March 8, 2021 at 6:25 PM

Quote from Da Flex

Sorry, but RTFM. It says you have to comment out dtparam=audio=on at config.txt and reboot.

I forgot to mentioned I have commented out the dtparam=audio=on line in the config.txt file.

Below is my full config.txt file:

Code: config.txt

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
################################################################################
# Bootloader configuration - config.txt
################################################################################

################################################################################
# Memory (System/GPU configuration )
################################################################################

# Default GPU memory split - at least 288M is needed for some 4k HEVC files
gpu_mem=320

################################################################################
# For overclocking and various other settings, see:
# https://www.raspberrypi.org/documentation/configuration/config-txt.md
################################################################################
# Set 'force_turbo=1' to disable dynamic overclocking and enable overclocking always.
force_turbo=0

# Force HDMI even if unplugged or powered off
# hdmi_force_hotplug=1

# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1

#Enable 4k resolution on HDMI
#hdmi_enable_4kp60=1

#Enable overlay for DAC HAT
#dtparam=audio=on
dtoverlay=iqaudio-codec
#dtparam=i2c1=on
#dtparam=i2s=on
################################################################################
# End of default configuration
################################################################################

################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txt

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And below is my distroconfig.txt file:

Code: distroconfig.txt

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2019-present Team LibreELEC (https://libreelec.tv)

# WARNING: DO NOT EDIT THIS FILE - IT WILL BE OVERWRITTEN WHEN UPGRADING!
dtoverlay=vc4-fkms-v3d
disable_overscan=1

**Da Flex** · March 8, 2021 at 6:48 PM Official Post

It's an I2S device, so activate dtparam=i2s=on at config.txt.

jossa · March 8, 2021 at 7:15 PM

Quote from Da Flex

It's an I2S device, so activate dtparam=i2s=on at config.txt.

I had that uncommented yesterday and just tried to uncomment it right now. With dtparam=i2s=on activated it's still the same.

I still get the same error when trying to run a speaker test from the command line:

Code

LibreELEC:~ # speaker-test -Dsysdefault:IQaudIOCODEC -c2

speaker-test 1.1.9

Playback device is sysdefault:IQaudIOCODEC
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 128 to 131072
Period size range from 64 to 65536
Using max buffer size 131072
Periods = 4
was set period_size = 32768
was set buffer_size = 131072
 0 - Front Left
 1 - Front Right
Write error: -5,Input/output error
xrun_recovery failed: -5,Input/output error
Transfer failed: Input/output error

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Modules seem to be ok:

Code

LibreELEC:~ # lsmod | grep snd
snd_soc_da7213         40960  1
snd_soc_iqaudio_codec    16384  0
snd_soc_bcm2835_i2s    20480  2

But still issues with the codec:

Code

LibreELEC:~ # dmesg | grep codec
[   20.376801] snd-rpi-iqaudio-codec soc:sound: ASoC: CODEC DAI da7213-hifi not registered - will retry
[   20.430541] snd-rpi-iqaudio-codec soc:sound: ASoC: CODEC DAI da7213-hifi not registered - will retry
[   20.620551] snd-rpi-iqaudio-codec soc:sound: da7213-hifi <-> fe203000.i2s mapping ok
[   20.728755] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   20.732247] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   20.732268] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   20.734744] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   20.734765] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   20.736815] : bcm2835_codec_get_supported_fmts: port has more encoding than we provided space for. Some are dropped.
[   20.737281] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   20.737298] bcm2835-codec bcm2835-codec: Loaded V4L2 isp

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**Da Flex** · March 8, 2021 at 7:36 PM Official Post

The device is made for Pi Zero, so I'm not sure whether it's compatible to RPi4B. Take another microSD, and test with Raspbian. If the device also fails on Raspbian, then I bet it's incompatible hardware.

jossa · March 8, 2021 at 8:35 PM

I have used this same HAT for more than a year with a RPi3B+ with Raspbian and was working without issues. I will try with Raspbian on the RPi4B and see if this is an hardware issue with the RPi4B.

jossa · March 13, 2021 at 5:42 PM

Hi all,

Today I managed to get IQaudio Codec Zero DAC to work on RPi4 with the latest version of LibreELEC. Below are the steps needed to make this work in case somebody else has the same issue.

First of all in the config.txt file there is no need to add dtoverlay=iqaudio-codec nor dtparam=i2s=on. Just comment out dtparam=audio=on.

In /storage/.config/ create the asound.conf with the following content:

Code: /storage/.config/asound.conf

pcm.!default {
        type asym
        playback.pcm {
                type plug
                slave.pcm "dmixer"
        }
        capture.pcm {
                type plug
                slave.pcm "dsnooper"
        }
}
pcm.dmixer {
    type dmix
    ipc_key 1024
    slave {
        pcm "hw:0,0"
        rate 44100
        period_time 0
        period_size 1024
        buffer_size 8192    
    }
}
pcm.dsnooper {
    type dsnoop
    ipc_key 816357492
    ipc_key_add_uid 0
    ipc_perm 0666
    slave {
        pcm "hw:0,0"
        channels 1
    }
}

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Download from https://github.com/iqaudio/Pi-Codecone of the example configuration file, edit this as needed and copy it over to the /storage/.config/ folder.

In the /storage/.config/ folder create a file named autostart.sh with the following content:

Code: /storage/.config/autostart.sh

(
sleep 20
alsactl restore -f /storage/.config/IQaudIO_Codec_OnBoardMIC_record_and_HP_playback.state
)&

Make the autostart.sh scrip executable (chmod +x) and then reboot.