blob: 429d7a1868254e8752c77fbc81c6b3f3abc5e339 [file] [log] [blame]
# Copyright (c) 2010 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 logging
import ntpath
import os
import stat
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
from import device_capability
class camera_V4L2(test.test):
version = 1
preserve_srcdir = True
v4l2_major_dev_num = 81
v4l2_minor_dev_num_min = 0
v4l2_minor_dev_num_max = 64
def setup(self):
# TODO(jiesun): make binary here when cross compile issue is resolved.
def run_once(self, capability=None, test_list=None):
if capability is not None:
# Enable USB camera HW timestamp
path = "/sys/module/uvcvideo/parameters/hwtimestamps"
if os.path.exists(path):
utils.system("echo 1 > %s" % path)
if test_list is None:
test_list = "halv3" if self.should_test_halv3() else "default"
self.test_list = test_list
self.dut_board = utils.get_current_board()
for device in self.v4l2_devices:
self.usb_info = self.get_camera_device_usb_info(device)
if not self.usb_info:
def should_test_halv3(self):
has_v3 = os.path.exists('/usr/bin/cros_camera_service')
has_v1 = os.path.exists('/usr/bin/arc_camera_service')
return has_v3 and not has_v1
def get_camera_device_usb_info(self, device):
device_name = ntpath.basename(device)
vid_path = "/sys/class/video4linux/%s/device/../idVendor" % device_name
pid_path = "/sys/class/video4linux/%s/device/../idProduct" % device_name
if not os.path.isfile(vid_path) or not os.path.isfile(pid_path):"Device %s is not a USB camera", device)
return None
with open(vid_path, 'r') as f_vid, open(pid_path, 'r') as f_pid:
vid =
pid =
return vid.strip() + ":" + pid.strip()
def is_v4l2_capture_device(self, device):
executable = os.path.join(self.bindir, "media_v4l2_is_capture_device")
cmd = "%s %s" % (executable, device)"Running %s", cmd)
return utils.system(cmd, ignore_status=True) == 0
def find_video_capture_devices(self):
self.v4l2_devices = []
for device in glob.glob("/dev/video*"):
statinfo = os.stat(device)
if (stat.S_ISCHR(statinfo.st_mode) and
os.major(statinfo.st_rdev) == self.v4l2_major_dev_num and
os.minor(statinfo.st_rdev) >=
self.v4l2_minor_dev_num_min and
os.minor(statinfo.st_rdev) < self.v4l2_minor_dev_num_max and
self.v4l2_devices.append(device)"Detected devices: %s\n", self.v4l2_devices)
if not self.v4l2_devices:
raise error.TestFail("No V4L2 devices found!")
def run_v4l2_unittests(self, device):
options = ["--device=%s" % device, "--usb-info=%s" % self.usb_info]
if self.test_list:
options += ["--test-list=%s" % self.test_list]
executable = os.path.join(self.bindir, "media_v4l2_unittest")
cmd = "%s %s" % (executable, " ".join(options))"Running %s", cmd)
stdout = utils.system_output(cmd, retain_output=True)
def run_v4l2_capture_test(self, device):
options = ["--device=%s" % device, "--usb-info=%s" % self.usb_info]
if self.test_list:
options += ["--test-list=%s" % self.test_list]
# snappy old SKU cannot meet the requirement. Skip the test to avoid
# alarm. Please see for detail.
if self.dut_board == 'snappy' and self.test_list == 'default':
options += ["--gtest_filter='-*MaximumSupportedResolution*'"]
executable = os.path.join(self.bindir, "media_v4l2_test")
cmd = "%s %s" % (executable, " ".join(options))"Running %s", cmd)
stdout = utils.system_output(cmd, retain_output=True)