test: add a script for xrun injection test

This script is used to check the ability of alsa xrun handling

Signed-off-by: Zhang Keqiao <keqiao.zhang@linux.intel.com>

tools/test/qa/tests/stability_test/sof-test-xrun.sh

@@ -0,0 +1,115 @@
+#!/bin/bash
+
+# Copyright (c) 2019, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#   * Neither the name of the Intel Corporation nor the
+#     names of its contributors may be used to endorse or promote products
+#     derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+# Author: Keqiao Zhang <keqiao.zhang@linux.intel.com>
+#
+# This script is used to test the ability of alsa xrun handling. To do this
+# you need to enable the xrun debugging in kernel driver first.
+# +CONFIG_SND_DEBUG=y
+# +CONFIG_SND_DEBUG_VERBOSE=y
+# +CONFIG_SND_PCM_XRUN_DEBUG=y
+
+FORMAT=s16_le	# sample format
+CHANNEL=2	# test channel number
+FREQUENCY=48000	# sample frequency
+INTERVAL=0.2	# interval time for each xrun injection
+MAXLOOP=10000	# max loop for xrun injection
+
+usage(){
+	echo "usage: $0 -t pcmid -r frequency -f format -c channel\
+-i interval -n loops -d audio_file"
+	echo "eg: ./$0 -t pcm0p -r 48000 -f s16_le -c 2 -i 0.2\
+-n 1000 -d audio.wav"
+	exit
+}
+
+xrun_inject()
+{
+	int=0
+	while [ $int -lt $MAXLOOP ]
+	do
+		echo "XRUN injection: $int"
+		echo 1 > /proc/asound/card0/$t_pcm/sub0/xrun_injection
+		sleep $INTERVAL
+		let int++
+		# check the pcm status
+		num=`ps -ef |grep "$PID"| grep -v "grep" |wc -l`
+		if [ $num == 0 ]; then
+			echo "$cmd is finished, stop the xrun injection"
+			exit 1
+	fi
+done
+}
+
+if [ $# == 0 ]; then
+	echo "Please specify the PCM to test."
+               usage
+else
+	while getopts :t:r:f:c:i:n:d OPT
+	do
+	case $OPT in
+		t)
+			t_pcm=$OPTARG
+			pcmid=`echo $t_pcm |tr -cd "[0-9]"`
+			test_type=`echo ${t_pcm: -1}`
+			if [[ $test_type == 'p' || $test_type == "P" ]]; then
+				cmd=aplay
+				data=/dev/zero
+			elif [[ $test_type == 'c' || $test_type == "C" ]]; then
+				cmd=arecord
+				data=/dev/null
+			fi
+			;;
+		r)
+			FREQUENCY=$OPTARG;;
+		f)
+			FORMAT=$OPTARG;;
+		c)
+			CHANNEL=$OPTARG;;
+		i)
+			INTERVAL=$OPTARG;;
+		n)
+			MAXLOOP=$OPTARG;;
+		d)
+			data=$OPTARG;;
+		*)
+			usage;;
+	esac
+	done
+fi
+
+[[ -z "$pcmid" ]] && usage
+$cmd -Dhw:0,$pcmid -f $FORMAT -r $FREQUENCY -c $CHANNEL $data &
+PID=$!
+
+# do xrun injection
+xrun_inject
+
+# stop the pcm after xrun injection is done
+kill $PID
+echo "XRUN injection test is done"