def stop_dfu(ignore_errors):
"""Stop U-Boot's dfu 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.
"""
try:
u_boot_console.log.action(
'Stopping long-running U-Boot dfu shell command')
u_boot_console.ctrlc()
u_boot_console.log.action(
'Waiting for DFU USB device to disappear')
u_boot_utils.wait_until_file_open_fails(
env__usb_dev_port['host_usb_dev_node'], ignore_errors)
except:
if not ignore_errors:
raise
def stop_dfu(ignore_errors):
"""Stop U-Boot's dfu 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.
"""
try:
u_boot_console.log.action(
'Stopping long-running U-Boot dfu shell command')
u_boot_console.ctrlc()
u_boot_console.log.action(
'Waiting for DFU USB device to disappear')
u_boot_utils.wait_until_file_open_fails(
env__usb_dev_port['host_usb_dev_node'], ignore_errors)
except:
if not ignore_errors:
raise
def start_dfu():
"""Start U-Boot's dfu shell command.
This also waits for the host-side USB enumeration process to complete.
Args:
None.
Returns:
Nothing.
"""
u_boot_utils.wait_until_file_open_fails(
env__usb_dev_port['host_usb_dev_node'], True)
fh = u_boot_utils.attempt_to_open_file(
env__usb_dev_port['host_usb_dev_node'])
if fh:
fh.close()
raise Exception('USB device present before dfu command invoked')
u_boot_console.log.action(
'Starting long-running U-Boot dfu shell command')
cmd = 'setenv dfu_alt_info "%s"' % env__dfu_config['alt_info']
u_boot_console.run_command(cmd)
cmd = 'dfu 0 ' + env__dfu_config['cmd_params']
u_boot_console.run_command(cmd, wait_for_prompt=False)
u_boot_console.log.action('Waiting for DFU USB device to appear')
fh = u_boot_utils.wait_until_open_succeeds(
env__usb_dev_port['host_usb_dev_node'])
fh.close()
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)
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)
def start_dfu():
"""Start U-Boot's dfu shell command.
This also waits for the host-side USB enumeration process to complete.
Args:
None.
Returns:
Nothing.
"""
u_boot_utils.wait_until_file_open_fails(
env__usb_dev_port['host_usb_dev_node'], True)
fh = u_boot_utils.attempt_to_open_file(
env__usb_dev_port['host_usb_dev_node'])
if fh:
fh.close()
raise Exception('USB device present before dfu command invoked')
u_boot_console.log.action(
'Starting long-running U-Boot dfu shell command')
dfu_alt_info_env = env__dfu_config.get('alt_info_env_name', \
'dfu_alt_info')
cmd = 'setenv "%s" "%s"' % (dfu_alt_info_env,
env__dfu_config['alt_info'])
u_boot_console.run_command(cmd)
cmd = 'dfu 0 ' + env__dfu_config['cmd_params']
u_boot_console.run_command(cmd, wait_for_prompt=False)
u_boot_console.log.action('Waiting for DFU USB device to appear')
fh = u_boot_utils.wait_until_open_succeeds(
env__usb_dev_port['host_usb_dev_node'])
fh.close()
