Linux ALSA DAPM 调试工具

1.安装图形生成工具
# sudo apt-get install graphviz2.仅列举 active 状态的控件
编写：dapm_debug_host.sh脚本,脚本在主机执行即可,Android设备必须root.
**********************************************************************************
#!/bin/bash
ASOC_TOP="/sys/kernel/debug/asoc"
HOST_TMP="tmp"DAPM_ROUTE_PIC="${HOST_TMP}/dapm_route.png"
DAPM_ROUTE_DOT="${HOST_TMP}/dapm_route.dot"
DAPM_WIDGET_INFO="${HOST_TMP}/dapm_widget.info"
DAPM_WIDGET_LIST="${HOST_TMP}/dapm_widget.list"mkdir -p ${HOST_TMP}rm -rf ${DAPM_ROUTE_PIC}
rm -rf ${DAPM_ROUTE_DOT}
rm -rf ${DAPM_WIDGET_INFO}
rm -rf ${DAPM_WIDGET_LIST}adb root
adb remountIFS=$'\n'function parse_widget_information()
{local state_tmp="${HOST_TMP}/state.tmp"adb shell "cat '$1'" > ${state_tmp}cat ${state_tmp} >> ${DAPM_WIDGET_INFO}echo >> ${DAPM_WIDGET_INFO}widget_name=$(awk 'BEGIN{FS=":"} {if(NR==1) {print $1} }'  ${state_tmp})widget_state=$(awk 'BEGIN{FS=":"} {if(NR==1) {print $2} }' ${state_tmp} | awk '{print $1}')#if [ x"Off" == x"${widget_state}" ] || [ x"Offforce" == x"{widget_state}" ]; then# echo ""\"${widget_name}\""[style="filled", color="black", fillcolor="lightyellow"];" >> ${DAPM_ROUTE_DOT}# widget_in=$(awk 'BEGIN{FS="\""; OFS="\""} /in/{if(NR >= 2) {if($4) { print("", $4, "->", "'"$widget_name"'", "") >> "'"$DAPM_ROUTE_DOT"'"} } }'  $state_tmp)# widget_out=$(awk 'BEGIN{FS="\""; OFS="\""} /out/{if(NR >= 2) {if($4) {print ("", "'"$widget_name"'", "->", $4,"") >> "'"$DAPM_ROUTE_DOT"'"} } }' $state_tmp)#fiif [ x"On" == x"${widget_state}" ] || [ x"Onforce" == x"${widget_state}" ]; thenecho ""\"${widget_name}\""[style="filled", color="black", fillcolor="palegreen"];" >> ${DAPM_ROUTE_DOT}widget_in=$(awk 'BEGIN{FS="\""; OFS="\""} /in/{if(NR >= 2) {if($4) { print("", $4, "->", "'"$widget_name"'", "") >> "'"$DAPM_ROUTE_DOT"'"} } }'  $state_tmp)widget_out=$(awk 'BEGIN{FS="\""; OFS="\""} /out/{if(NR >= 2) {if($4) {print ("", "'"$widget_name"'", "->", $4,"") >> "'"$DAPM_ROUTE_DOT"'"} } }' $state_tmp)firm -rf ${state_tmp}
}function add_widget_to_list()
{local dapm_dir="$1"local widget_list="${HOST_TMP}/widget.tmp"adb shell "ls '${dapm_dir}'" > ${widget_list}for widget in $(cat ${widget_list})doif [ x"bias_level" != x"${widget}" ]; thenecho "${dapm_dir}/${widget}" >> ${DAPM_WIDGET_LIST}parse_widget_information "${dapm_dir}/${widget}"fidonerm -rf ${widget_list}
}function search_dapm_directory()
{local top="$1"local top_dir="${HOST_TMP}/top.tmp"local sub_dir="${HOST_TMP}/sub.tmp"adb shell "ls '${top}'" > ${top_dir}for sub in $(cat ${top_dir})doadb shell "stat '${top}/${sub}'" > ${sub_dir}attribute=$(cat "${sub_dir}")if [[ ${attribute} =~ "directory" ]]; thenif [ x"dapm" == x"${sub}" ]; thenecho "Found dapm dir (${top}/${sub})"add_widget_to_list "${top}/${sub}"elsesearch_dapm_directory "${top}/${sub}"fifidonerm -rf ${top_dir}rm -rf ${sub_dir}
}function draw_dapm_route_picture()
{local dot_tmp="${HOST_TMP}/dot.tmp"if [ ! -f ${DAPM_ROUTE_DOT} ]; thenreturnfisort -k2n $DAPM_ROUTE_DOT | awk '{if ($0!=line) print;line=$0}'  > $dot_tmpawk 'BEGIN{print("digraph a{")} {print $0}' $dot_tmp > ${DAPM_ROUTE_DOT}echo "}" >> ${DAPM_ROUTE_DOT}echoecho -e '\e[0;33;1mPicture at' "$DAPM_ROUTE_PIC" '\e[0m'echodot -Tpng ${DAPM_ROUTE_DOT} -o $DAPM_ROUTE_PICrm -rf ${dot_tmp}
}search_dapm_directory ${ASOC_TOP}draw_dapm_route_picture
**********************************************************************************3.列举所有的控件，包括 active 和 inactive 的，因为控件比较多，所有每个dapm目录一张图片.
编写：dapm_route_all.sh脚本
**********************************************************************************
#!/bin/bashASOC_TOP="/sys/kernel/debug/asoc"
HOST_TMP="tmp"DAPM_ROUTE="${HOST_TMP}/dapm_route"
DAPM_WIDGET_INFO="${HOST_TMP}/dapm_widget.info"
DAPM_WIDGET_LIST="${HOST_TMP}/dapm_widget.list"index=0mkdir -p ${HOST_TMP}
rm -rf ${HOST_TMP}/*adb root
adb remountIFS=$'\n'function parse_widget_information()
{local state_tmp="${HOST_TMP}/state.tmp"adb shell "cat '$1'" > ${state_tmp}cat ${state_tmp} >> ${DAPM_WIDGET_INFO}echo >> ${DAPM_WIDGET_INFO}widget_name=$(awk 'BEGIN{FS=":"} {if(NR==1) {print $1} }'  ${state_tmp})widget_state=$(awk 'BEGIN{FS=":"} {if(NR==1) {print $2} }' ${state_tmp} | awk '{print $1}')if [ x"Off" == x"${widget_state}" ] || [ x"Offforce" == x"{widget_state}" ]; thenecho ""\"${widget_name}\""[style="filled", color="black", fillcolor="lightyellow"];" >> $DAPM_ROUTE-$index.dotfiif [ x"On" == x"${widget_state}" ] || [ x"Onforce" == x"${widget_state}" ]; thenecho ""\"${widget_name}\""[style="filled", color="black", fillcolor="palegreen"];" >> $DAPM_ROUTE-$index.dotfiwidget_in=$(awk 'BEGIN{FS="\""; OFS="\""} /in/{if(NR >= 2) {if($4) { print("", $4, "->", "'"$widget_name"'", "") >> "'"$DAPM_ROUTE-$index.dot"'"} } }'  $state_tmp)widget_out=$(awk 'BEGIN{FS="\""; OFS="\""} /out/{if(NR >= 2) {if($4) {print ("", "'"$widget_name"'", "->", $4,"") >> "'"$DAPM_ROUTE-$index.dot"'"} } }' $state_tmp)rm -rf ${state_tmp}
}function add_widget_to_list()
{local dapm_dir="$1"local widget_list="${HOST_TMP}/widget.tmp"adb shell "ls '${dapm_dir}'" > ${widget_list}for widget in $(cat ${widget_list})doif [ x"bias_level" != x"${widget}" ]; thenecho "${dapm_dir}/${widget}" >> ${DAPM_WIDGET_LIST}parse_widget_information "${dapm_dir}/${widget}"fidonerm -rf ${widget_list}
}function search_dapm_directory()
{local top="$1"local top_dir="${HOST_TMP}/top.tmp"local sub_dir="${HOST_TMP}/sub.tmp"adb shell "ls '${top}'" > ${top_dir}for sub in $(cat ${top_dir})doadb shell "stat '${top}/${sub}'" > ${sub_dir}attribute=$(cat "${sub_dir}")if [[ ${attribute} =~ "directory" ]]; thenif [ x"dapm" == x"${sub}" ]; thenecho "Found dapm dir (${top}/${sub})"index=$(($index+1))add_widget_to_list "${top}/${sub}"elsesearch_dapm_directory "${top}/${sub}"fifidonerm -rf ${top_dir}rm -rf ${sub_dir}
}function draw_dapm_route_picture()
{local dot_tmp="${HOST_TMP}/dot.tmp"local i=1for (( i=1; i<=$index; i++ ))doif [ ! -f $DAPM_ROUTE-$i.dot ]; thencontinuefisort -k2n $DAPM_ROUTE-$i.dot | awk '{if ($0!=line) print;line=$0}'  > $dot_tmpawk 'BEGIN{print("digraph a{")} {print $0}' $dot_tmp > $DAPM_ROUTE-$i.dotecho "}" >> $DAPM_ROUTE-$i.dotechoecho -e '\e[0;33;1mPicture at' "$DAPM_ROUTE-$i.png" '\e[0m'echodot -Tpng $DAPM_ROUTE-$i.dot -o $DAPM_ROUTE-$i.pngdonerm -rf ${dot_tmp}rm -rf ${HOST_TMP}/*.dot
}search_dapm_directory ${ASOC_TOP}draw_dapm_route_picture
**********************************************************************************

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