blob: eb927190ade735b0028adec4de1fb7cd995b277c [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 glob
import os
import re
import stat
import subprocess
from autotest_lib.client.common_lib import error
from autotest_lib.client.bin import test
from autotest_lib.client.bin import utils
_SND_DEV_DIR = '/dev/snd/'
_SND_DEFAULT_MASK = 'controlC*'
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
_NO_RECORDER_BOARDS_LIST = ['veyron_mickey']
_NO_AUDIO_DEVICE_LIST = ['veyron_rialto']
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.TestFail("Incorrect permissions for %s" % filename)
def check_sound_files(self, playback=True, record=True):
"""Checks sound files present in snd directory.
@param playback: Checks playback device.
@param record: Checks record device.
@raises: error.TestFail if sound file is missing.
patterns = {'^controlC(\d+)': False}
if playback:
patterns['^pcmC(\d+)D(\d+)p$'] = False
if record:
patterns['^pcmC(\d+)D(\d+)c$'] = 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.TestFail("Missing device %s" % pattern)
def check_device_list(self, playback=True, record=True):
"""Checks sound card and device list by alsa utils command.
@param playback: Checks playback sound card and devices.
@param record: Checks record sound card and devices.
@raises: error.TestFail if no playback/record devices found.
no_cards_pattern = '.*no soundcards found.*'
if playback:
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.TestFail("No playback devices found by aplay")
if record:
no_cards_pattern = '.*no soundcards found.*'
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.TestFail("No record devices found by arecord")
def run_once(self):
board = utils.get_board().lower()
snd_control = len(glob.glob(_SND_DEV_DIR + _SND_DEFAULT_MASK))
if board in self._NO_AUDIO_DEVICE_LIST:
if snd_control:
raise error.TestError('%s is not supposed to have sound control!' % board)
record = board not in self._NO_RECORDER_BOARDS_LIST
playback = board not in self._NO_PLAYBACK_BOARDS_LIST
self.check_sound_files(playback, record)
self.check_device_list(playback, record)