blob: 0722a7894a547478da39c1b71c73c2711de487a1 [file] [log] [blame]
# Copyright (c) 2012 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.
import os
import re
import stat
import subprocess
from autotest_lib.client.common_lib import error
from autotest_lib.client.bin import test
_SND_DEV_DIR = '/dev/snd/'
class sound_infrastructure(test.test):
Tests that the expected sound infrastructure is present.
Check that at least one playback and capture device exists and that their
permissions are configured properly.
version = 2
def check_snd_dev_perms(self, filename):
desired_mode = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP |
stat.S_IWGRP | stat.S_IFCHR)
st = os.stat(filename)
if (st.st_mode != desired_mode):
raise error.TestError("Incorrect permissions for %s" % filename)
def check_sound_files(self):
patterns = {'^controlC(\d+)': False,
'^pcmC(\d+)D(\d+)p$': False,
'^pcmC(\d+)D(\d+)c$': False}
filenames = os.listdir(_SND_DEV_DIR)
for filename in filenames:
for pattern in patterns:
if re.match(pattern, filename):
patterns[pattern] = True
self.check_snd_dev_perms(_SND_DEV_DIR + filename)
for pattern in patterns:
if not patterns[pattern]:
raise error.TestError("Missing device %s" % pattern)
def check_aplay_list(self):
no_cards_pattern = '.*no soundcards found.*'
aplay = subprocess.Popen(["aplay", "-l"], stderr=subprocess.PIPE)
aplay_list = aplay.communicate()[1]
if aplay.returncode or re.match(no_cards_pattern, aplay_list):
raise error.TestError("No playback devices found by aplay")
arecord = subprocess.Popen(["arecord", "-l"], stderr=subprocess.PIPE)
arecord_list = arecord.communicate()[1]
if arecord.returncode or re.match(no_cards_pattern, arecord_list):
raise error.TestError("No playback devices found by arecord")
def run_once(self):