80 lines
2.3 KiB
Bash
80 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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# Installs drivers for the ReSpeaker 2mic and 4mic HATs on Raspberry Pi OS.
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# Must be run with sudo.
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# Requires: curl raspberrypi-kernel-headers dkms i2c-tools libasound2-plugins alsa-utils
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set -eo pipefail
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kernel_formatted="$(uname -r | cut -f1,2 -d.)"
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driver_url_status="$(curl -ILs https://github.com/HinTak/seeed-voicecard/archive/refs/heads/v$kernel_formatted.tar.gz | tac | grep -o "^HTTP.*" | cut -f 2 -d' ' | head -1)"
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if [ ! "$driver_url_status" = 200 ]; then
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echo "Could not find driver for kernel $kernel_formatted"
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exit 1
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fi
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apt-get update
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apt-get install --no-install-recommends --yes \
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curl raspberrypi-kernel-headers dkms i2c-tools libasound2-plugins alsa-utils
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temp_dir="$(mktemp -d)"
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function finish {
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rm -rf "${temp_dir}"
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}
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trap finish EXIT
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pushd "${temp_dir}"
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# Download source code to temporary directory
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# NOTE: There are different branches in the repo for different kernel versions.
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echo 'Downloading source code'
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curl -L -o - "https://github.com/HinTak/seeed-voicecard/archive/refs/heads/v$kernel_formatted.tar.gz" | \
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tar -xzf -
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cd seeed-voicecard-"$kernel_formatted"/
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# 1. Build kernel module
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echo 'Building kernel module'
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ver='0.3'
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mod='seeed-voicecard'
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src='./'
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kernel="$(uname -r)"
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marker='0.0.0'
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threads="$(getconf _NPROCESSORS_ONLN)"
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memory="$(LANG=C free -m|awk '/^Mem:/{print $2}')"
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if [ "${memory}" -le 512 ] && [ "${threads}" -gt 2 ]; then
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threads=2
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fi
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mkdir -p "/usr/src/${mod}-${ver}"
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cp -a "${src}"/* "/usr/src/${mod}-${ver}/"
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dkms add -m "${mod}" -v "${ver}"
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dkms build -k "${kernel}" -m "${mod}" -v "${ver}" -j "${threads}" && {
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dkms install --force -k "${kernel}" -m "${mod}" -v "${ver}"
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}
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mkdir -p "/var/lib/dkms/${mod}/${ver}/${marker}"
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# 2. Install kernel module and configure
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echo 'Updating boot configuration'
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config='/boot/config.txt'
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cp seeed-*-voicecard.dtbo /boot/overlays
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grep -q "^snd-soc-ac108$" /etc/modules || echo "snd-soc-ac108" >> /etc/modules
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sed -i -e 's:#dtparam=i2c_arm=on:dtparam=i2c_arm=on:g' "${config}"
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echo "dtoverlay=i2s-mmap" >> "${config}"
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echo "dtparam=i2s=on" >> "${config}"
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mkdir -p /etc/voicecard
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cp *.conf *.state /etc/voicecard
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cp seeed-voicecard /usr/bin/
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cp seeed-voicecard.service /lib/systemd/system/
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systemctl enable --now seeed-voicecard.service
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echo 'Done. Please reboot the system.'
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popd
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