upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
237 lines
8.1 KiB
237 lines
8.1 KiB
# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
|
|
#
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
# Test U-Boot's "ums" command. The test starts UMS in U-Boot, waits for USB
|
|
# device enumeration on the host, reads a small block of data from the UMS
|
|
# block device, optionally mounts a partition and performs filesystem-based
|
|
# read/write tests, and finally aborts the "ums" command in U-Boot.
|
|
|
|
import os
|
|
import os.path
|
|
import pytest
|
|
import re
|
|
import time
|
|
import u_boot_utils
|
|
|
|
"""
|
|
Note: This test relies on:
|
|
|
|
a) boardenv_* to contain configuration values to define which USB ports are
|
|
available for testing. Without this, this test will be automatically skipped.
|
|
For example:
|
|
|
|
# Leave this list empty if you have no block_devs below with writable
|
|
# partitions defined.
|
|
env__mount_points = (
|
|
"/mnt/ubtest-mnt-p2371-2180-na",
|
|
)
|
|
|
|
env__usb_dev_ports = (
|
|
{
|
|
"fixture_id": "micro_b",
|
|
"tgt_usb_ctlr": "0",
|
|
"host_ums_dev_node": "/dev/disk/by-path/pci-0000:00:14.0-usb-0:13:1.0-scsi-0:0:0:0",
|
|
},
|
|
)
|
|
|
|
env__block_devs = (
|
|
# eMMC; always present
|
|
{
|
|
"fixture_id": "emmc",
|
|
"type": "mmc",
|
|
"id": "0",
|
|
# The following two properties are optional.
|
|
# If present, the partition will be mounted and a file written-to and
|
|
# read-from it. If missing, only a simple block read test will be
|
|
# performed.
|
|
"writable_fs_partition": 1,
|
|
"writable_fs_subdir": "tmp/",
|
|
},
|
|
# SD card; present since I plugged one in
|
|
{
|
|
"fixture_id": "sd",
|
|
"type": "mmc",
|
|
"id": "1"
|
|
},
|
|
)
|
|
|
|
b) udev rules to set permissions on devices nodes, so that sudo is not
|
|
required. For example:
|
|
|
|
ACTION=="add", SUBSYSTEM=="block", SUBSYSTEMS=="usb", KERNELS=="3-13", MODE:="666"
|
|
|
|
(You may wish to change the group ID instead of setting the permissions wide
|
|
open. All that matters is that the user ID running the test can access the
|
|
device.)
|
|
|
|
c) /etc/fstab entries to allow the block device to be mounted without requiring
|
|
root permissions. For example:
|
|
|
|
/dev/disk/by-path/pci-0000:00:14.0-usb-0:13:1.0-scsi-0:0:0:0-part1 /mnt/ubtest-mnt-p2371-2180-na ext4 noauto,user,nosuid,nodev
|
|
|
|
This entry is only needed if any block_devs above contain a
|
|
writable_fs_partition value.
|
|
"""
|
|
|
|
@pytest.mark.buildconfigspec('cmd_usb_mass_storage')
|
|
def test_ums(u_boot_console, env__usb_dev_port, env__block_devs):
|
|
"""Test the "ums" command; the host system must be able to enumerate a UMS
|
|
device when "ums" is running, block and optionally file I/O are tested,
|
|
and this device must disappear when "ums" is aborted.
|
|
|
|
Args:
|
|
u_boot_console: A U-Boot console connection.
|
|
env__usb_dev_port: The single USB device-mode port specification on
|
|
which to run the test. See the file-level comment above for
|
|
details of the format.
|
|
env__block_devs: The list of block devices that the target U-Boot
|
|
device has attached. See the file-level comment above for details
|
|
of the format.
|
|
|
|
Returns:
|
|
Nothing.
|
|
"""
|
|
|
|
have_writable_fs_partition = 'writable_fs_partition' in env__block_devs[0]
|
|
if not have_writable_fs_partition:
|
|
# If 'writable_fs_subdir' is missing, we'll skip all parts of the
|
|
# testing which mount filesystems.
|
|
u_boot_console.log.warning(
|
|
'boardenv missing "writable_fs_partition"; ' +
|
|
'UMS testing will be limited.')
|
|
|
|
tgt_usb_ctlr = env__usb_dev_port['tgt_usb_ctlr']
|
|
host_ums_dev_node = env__usb_dev_port['host_ums_dev_node']
|
|
|
|
# We're interested in testing USB device mode on each port, not the cross-
|
|
# product of that with each device. So, just pick the first entry in the
|
|
# device list here. We'll test each block device somewhere else.
|
|
tgt_dev_type = env__block_devs[0]['type']
|
|
tgt_dev_id = env__block_devs[0]['id']
|
|
if have_writable_fs_partition:
|
|
mount_point = u_boot_console.config.env['env__mount_points'][0]
|
|
mount_subdir = env__block_devs[0]['writable_fs_subdir']
|
|
part_num = env__block_devs[0]['writable_fs_partition']
|
|
host_ums_part_node = '%s-part%d' % (host_ums_dev_node, part_num)
|
|
else:
|
|
host_ums_part_node = host_ums_dev_node
|
|
|
|
test_f = u_boot_utils.PersistentRandomFile(u_boot_console, 'ums.bin',
|
|
1024 * 1024);
|
|
if have_writable_fs_partition:
|
|
mounted_test_fn = mount_point + '/' + mount_subdir + test_f.fn
|
|
|
|
def start_ums():
|
|
"""Start U-Boot's ums shell command.
|
|
|
|
This also waits for the host-side USB enumeration process to complete.
|
|
|
|
Args:
|
|
None.
|
|
|
|
Returns:
|
|
Nothing.
|
|
"""
|
|
|
|
u_boot_console.log.action(
|
|
'Starting long-running U-Boot ums shell command')
|
|
cmd = 'ums %s %s %s' % (tgt_usb_ctlr, tgt_dev_type, tgt_dev_id)
|
|
u_boot_console.run_command(cmd, wait_for_prompt=False)
|
|
u_boot_console.wait_for(re.compile('UMS: LUN.*[\r\n]'))
|
|
fh = u_boot_utils.wait_until_open_succeeds(host_ums_part_node)
|
|
u_boot_console.log.action('Reading raw data from UMS device')
|
|
fh.read(4096)
|
|
fh.close()
|
|
|
|
def mount():
|
|
"""Mount the block device that U-Boot exports.
|
|
|
|
Args:
|
|
None.
|
|
|
|
Returns:
|
|
Nothing.
|
|
"""
|
|
|
|
u_boot_console.log.action('Mounting exported UMS device')
|
|
cmd = ('/bin/mount', host_ums_part_node)
|
|
u_boot_utils.run_and_log(u_boot_console, cmd)
|
|
|
|
def umount(ignore_errors):
|
|
"""Unmount the block device that U-Boot exports.
|
|
|
|
Args:
|
|
ignore_errors: Ignore any errors. This is useful if an error has
|
|
already been detected, and the code is performing best-effort
|
|
cleanup. In this case, we do not want to mask the original
|
|
error by "honoring" any new errors.
|
|
|
|
Returns:
|
|
Nothing.
|
|
"""
|
|
|
|
u_boot_console.log.action('Unmounting UMS device')
|
|
cmd = ('/bin/umount', host_ums_part_node)
|
|
u_boot_utils.run_and_log(u_boot_console, cmd, ignore_errors)
|
|
|
|
def stop_ums(ignore_errors):
|
|
"""Stop U-Boot's ums shell command from executing.
|
|
|
|
This also waits for the host-side USB de-enumeration process to
|
|
complete.
|
|
|
|
Args:
|
|
ignore_errors: Ignore any errors. This is useful if an error has
|
|
already been detected, and the code is performing best-effort
|
|
cleanup. In this case, we do not want to mask the original
|
|
error by "honoring" any new errors.
|
|
|
|
Returns:
|
|
Nothing.
|
|
"""
|
|
|
|
u_boot_console.log.action(
|
|
'Stopping long-running U-Boot ums shell command')
|
|
u_boot_console.ctrlc()
|
|
u_boot_utils.wait_until_file_open_fails(host_ums_part_node,
|
|
ignore_errors)
|
|
|
|
ignore_cleanup_errors = True
|
|
try:
|
|
start_ums()
|
|
if not have_writable_fs_partition:
|
|
# Skip filesystem-based testing if not configured
|
|
return
|
|
try:
|
|
mount()
|
|
u_boot_console.log.action('Writing test file via UMS')
|
|
cmd = ('rm', '-f', mounted_test_fn)
|
|
u_boot_utils.run_and_log(u_boot_console, cmd)
|
|
if os.path.exists(mounted_test_fn):
|
|
raise Exception('Could not rm target UMS test file')
|
|
cmd = ('cp', test_f.abs_fn, mounted_test_fn)
|
|
u_boot_utils.run_and_log(u_boot_console, cmd)
|
|
ignore_cleanup_errors = False
|
|
finally:
|
|
umount(ignore_errors=ignore_cleanup_errors)
|
|
finally:
|
|
stop_ums(ignore_errors=ignore_cleanup_errors)
|
|
|
|
ignore_cleanup_errors = True
|
|
try:
|
|
start_ums()
|
|
try:
|
|
mount()
|
|
u_boot_console.log.action('Reading test file back via UMS')
|
|
read_back_hash = u_boot_utils.md5sum_file(mounted_test_fn)
|
|
cmd = ('rm', '-f', mounted_test_fn)
|
|
u_boot_utils.run_and_log(u_boot_console, cmd)
|
|
ignore_cleanup_errors = False
|
|
finally:
|
|
umount(ignore_errors=ignore_cleanup_errors)
|
|
finally:
|
|
stop_ums(ignore_errors=ignore_cleanup_errors)
|
|
|
|
written_hash = test_f.content_hash
|
|
assert(written_hash == read_back_hash)
|
|
|