Add realtek-coeffs script
This commit is contained in:
committed by
Jeremy Soller
parent
c2cfab23d4
commit
93c2809b7d
37
scripts/realtek-coeffs.sh
Executable file
37
scripts/realtek-coeffs.sh
Executable file
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#!/usr/bin/env bash
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if [ "${EUID}" != "0" ]
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then
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exec sudo "$0" "$@"
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fi
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set -e
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for codec in /dev/snd/hw*
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do
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codec_id="$(basename "${codec}")"
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codec_sys="/sys/class/sound/${codec_id}"
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vendor="$(cat "${codec_sys}/vendor_name")"
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chip="$(cat "${codec_sys}/chip_name")"
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if [ "${vendor}" == "Realtek" ]
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then
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echo "# ${codec_id}: ${vendor} ${chip}"
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# Realtek vendor node
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nid=0x20
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# Get processing capabilities
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proc_cap="$(hda-verb "${codec}" "${nid}" PARAMETERS PROC_CAP 2>/dev/null | cut -d " " -f 3)"
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seq "$(("${proc_cap}" >> 8))" | while read index
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do
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# Set coefficient index
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index_hex="$(printf "0x%02x\n" "${index}")"
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hda-verb "${codec}" "${nid}" SET_COEF_INDEX "${index_hex}" &>/dev/null
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# Get processing coefficient
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value="$(hda-verb "${codec}" "${nid}" GET_PROC_COEF 0 2>/dev/null | cut -d " " -f 3)"
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echo "${index_hex}: ${value}"
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done
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fi
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done
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