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#!/bin/sh
#
# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Collect information about the audio system from top to bottom.
dump_cards() {
# shellcheck disable=SC2068
for card in ${@}
do
echo "=== amixer -c ${card} scontents ==="
amixer -c "${card}" scontents
echo "=== amixer -c ${card} contents ==="
amixer -c "${card}" contents
done
}
# Helper function: in_the_list $1 $2
# Returns 0 if str $1 is included in delimited str $2; otherwise 1
in_the_list() {
for item in $2
do
if [ "$1" = "${item}" ]; then
return 0
fi
done
return 1
}
echo '=== cras_test_client --dump_server_info ==='
cras_test_client --dump_server_info
echo '=== cras_test_client --dump_audio_thread ==='
cras_test_client --dump_audio_thread
echo '=== cras_test_client --dump_main ==='
cras_test_client --dump_main
echo '=== cras_test_client --dump_bt ==='
cras_test_client --dump_bt
echo '=== cras_test_client --dump_events ==='
cras_test_client --dump_events
echo '=== aplay -l ==='
aplay -l
echo '=== arecord -l ==='
arecord -l
output_cards=$(
aplay -l | grep -E ^card | sed 's/card \([0-9]\+\).*/\1/' | sort -u)
dump_cards "${output_cards}"
input_cards=$(
arecord -l | grep -E ^card | sed 's/card \([0-9]\+\).*/\1/' | sort -u)
dump_cards "${input_cards}"
# HDA codec for codecs on x86.
codecs=$(find /proc/asound -mindepth 2 -maxdepth 2 -path '*card*/codec#*')
for codec in ${codecs}
do
echo "=== codec: ${codec} ==="
cat "${codec}"
done
# I2C dump for codecs on arm.
# Find lines like "max98088.7-0010" and extract "7 0x0010" from it.
if [ -e /sys/kernel/debug/asoc/codecs ]; then
sed_expr='s/^\([^.-]\+\)\.\([0-9]\+\)-\([0-9]\+\)$/\2 0x\3/p'
sed -n "${sed_expr}" /sys/kernel/debug/asoc/codecs |
while read -r i2c_addr
do
echo "=== i2cdump -f -y ${i2c_addr} ==="
i2cdump -f -y "${i2c_addr}"
done
fi
# Dump registers from regmaps
# List of audio components
# For kernel>=4.14, it is in /sys/kernel/debug/asoc/components
# For kernel<4.14, it is in /sys/kernel/debug/asoc/codecs
if [ -f /sys/kernel/debug/asoc/components ]; then
audio_comps=$(cat /sys/kernel/debug/asoc/components)
else
audio_comps=$(cat /sys/kernel/debug/asoc/codecs)
fi
# Blocklist regmap name of dumping registers (tracked by b/154177454)
# Use the blank space as delimiter, e.g. 'name_a name_b name_c'
name_blocklist='snd_hda_codec_hdmi'
for file_path in /sys/kernel/debug/regmap/*
do
[ -e "${file_path}" ] || break # handle the case of no files
component=$(basename "${file_path}")
# Skip dumping registers if component is not listed in audio_comps
if ! in_the_list "${component}" "${audio_comps}"; then
continue
fi
if [ ! -f "${file_path}/name" ]; then
echo "Failed at dump registers: ${file_path}"
continue
fi
name=$(cat "${file_path}/name")
echo "=== dump registers component: ${component} name: ${name} ==="
# Skip dumping registers if regmap's name is in name_blocklist
if in_the_list "${name}" "${name_blocklist}"; then
echo 'skipped dumping due to b/154177454'
continue
fi
# Store back the original value
# Note: $(cat cache_bypass) returns 'Y' if flag is on; otherwise 'N'
cache_bypass=$(cat "${file_path}/cache_bypass")
if [ "${cache_bypass}" = "N" ]; then
echo 1 > "${file_path}/cache_bypass"
fi
cat "${file_path}/registers"
if [ "${cache_bypass}" = "N" ]; then
echo 0 > "${file_path}/cache_bypass"
fi
done
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