1 files changed, 0 insertions, 304 deletions
diff --git a/extra/tigertool/ecusb/pty_driver.py b/extra/tigertool/ecusb/pty_driver.py
deleted file mode 100644
index 137cbc149b..0000000000
--- a/extra/tigertool/ecusb/pty_driver.py
+++ /dev/null
@@ -1,304 +0,0 @@
-# Copyright 2017 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.
-#
-# Ignore indention messages, since legacy scripts use 2 spaces instead of 4.
-# pylint: disable=bad-indentation,docstring-section-indent
-# pylint: disable=docstring-trailing-quotes
-
-"""ptyDriver class
-
-This class takes a pty interface and can send commands and expect results
-as regex. This is useful for automating console based interfaces, such as
-the CrOS EC console commands.
-"""
-
-import ast
-import errno
-import fcntl
-import os
-import pexpect
-import time
-from pexpect import fdpexpect
-
-# Expecting a result in 3 seconds is plenty even for slow platforms.
-DEFAULT_UART_TIMEOUT = 3
-FLUSH_UART_TIMEOUT = 1
-
-
-class ptyError(Exception):
-  """Exception class for pty errors."""
-
-
-UART_PARAMS = {
-    'uart_cmd': None,
-    'uart_multicmd': None,
-    'uart_regexp': None,
-    'uart_timeout': DEFAULT_UART_TIMEOUT,
-}
-
-
-class ptyDriver(object):
-  """Automate interactive commands on a pty interface."""
-  def __init__(self, interface, params, fast=False):
-    """Init class variables."""
-    self._child = None
-    self._fd = None
-    self._interface = interface
-    self._pty_path = self._interface.get_pty()
-    self._dict = UART_PARAMS.copy()
-    self._fast = fast
-
-  def __del__(self):
-    self.close()
-
-  def close(self):
-    """Close any open files and interfaces."""
-    if self._fd:
-      self._close()
-    self._interface.close()
-
-  def _open(self):
-    """Connect to serial device and create pexpect interface."""
-    assert self._fd is None
-    self._fd = os.open(self._pty_path, os.O_RDWR | os.O_NONBLOCK)
-    # Don't allow forked processes to access.
-    fcntl.fcntl(self._fd, fcntl.F_SETFD,
-                fcntl.fcntl(self._fd, fcntl.F_GETFD) | fcntl.FD_CLOEXEC)
-    self._child = fdpexpect.fdspawn(self._fd)
-    # pexpect defaults to a 100ms delay before sending characters, to
-    # work around race conditions in ssh. We don't need this feature
-    # so we'll change delaybeforesend from 0.1 to 0.001 to speed things up.
-    if self._fast:
-      self._child.delaybeforesend = 0.001
-
-  def _close(self):
-    """Close serial device connection."""
-    os.close(self._fd)
-    self._fd = None
-    self._child = None
-
-  def _flush(self):
-    """Flush device output to prevent previous messages interfering."""
-    if self._child.sendline('') != 1:
-      raise ptyError('Failed to send newline.')
-    # Have a maximum timeout for the flush operation. We should have cleared
-    # all data from the buffer, but if data is regularly being generated, we
-    # can't guarantee it will ever stop.
-    flush_end_time = time.time() + FLUSH_UART_TIMEOUT
-    while time.time() <= flush_end_time:
-      try:
-        self._child.expect('.', timeout=0.01)
-      except (pexpect.TIMEOUT, pexpect.EOF):
-        break
-      except OSError as e:
-        # EAGAIN indicates no data available, maybe we didn't wait long enough.
-        if e.errno != errno.EAGAIN:
-          raise
-        break
-
-  def _send(self, cmds):
-    """Send command to EC.
-
-    This function always flushes serial device before sending, and is used as
-    a wrapper function to make sure the channel is always flushed before
-    sending commands.
-
-    Args:
-      cmds: The commands to send to the device, either a list or a string.
-
-    Raises:
-      ptyError: Raised when writing to the device fails.
-    """
-    self._flush()
-    if not isinstance(cmds, list):
-      cmds = [cmds]
-    for cmd in cmds:
-      if self._child.sendline(cmd) != len(cmd) + 1:
-        raise ptyError('Failed to send command.')
-
-  def _issue_cmd(self, cmds):
-    """Send command to the device and do not wait for response.
-
-    Args:
-      cmds: The commands to send to the device, either a list or a string.
-    """
-    self._issue_cmd_get_results(cmds, [])
-
-  def _issue_cmd_get_results(self, cmds,
-                             regex_list, timeout=DEFAULT_UART_TIMEOUT):
-    """Send command to the device and wait for response.
-
-    This function waits for response message matching a regular
-    expressions.
-
-    Args:
-      cmds: The commands issued, either a list or a string.
-      regex_list: List of Regular expressions used to match response message.
-        Note1, list must be ordered.
-        Note2, empty list sends and returns.
-      timeout: time to wait for matching results before failing.
-
-    Returns:
-      List of tuples, each of which contains the entire matched string and
-      all the subgroups of the match. None if not matched.
-      For example:
-        response of the given command:
-          High temp: 37.2
-          Low temp: 36.4
-        regex_list:
-          ['High temp: (\d+)\.(\d+)', 'Low temp: (\d+)\.(\d+)']
-        returns:
-          [('High temp: 37.2', '37', '2'), ('Low temp: 36.4', '36', '4')]
-
-    Raises:
-      ptyError: If timed out waiting for a response
-    """
-    result_list = []
-    self._open()
-    try:
-      self._send(cmds)
-      for regex in regex_list:
-        self._child.expect(regex, timeout)
-        match = self._child.match
-        lastindex = match.lastindex if match and match.lastindex else 0
-        # Create a tuple which contains the entire matched string and all
-        # the subgroups of the match.
-        result = match.group(*range(lastindex + 1)) if match else None
-        if result:
-          result = tuple(res.decode('utf-8') for res in result)
-        result_list.append(result)
-    except pexpect.TIMEOUT:
-      raise ptyError('Timeout waiting for response.')
-    finally:
-      self._close()
-    return result_list
-
-  def _issue_cmd_get_multi_results(self, cmd, regex):
-    """Send command to the device and wait for multiple response.
-
-    This function waits for arbitrary number of response message
-    matching a regular expression.
-
-    Args:
-      cmd: The command issued.
-      regex: Regular expression used to match response message.
-
-    Returns:
-      List of tuples, each of which contains the entire matched string and
-      all the subgroups of the match. None if not matched.
-    """
-    result_list = []
-    self._open()
-    try:
-      self._send(cmd)
-      while True:
-        try:
-          self._child.expect(regex, timeout=0.1)
-          match = self._child.match
-          lastindex = match.lastindex if match and match.lastindex else 0
-          # Create a tuple which contains the entire matched string and all
-          # the subgroups of the match.
-          result = match.group(*range(lastindex + 1)) if match else None
-          if result:
-            result = tuple(res.decode('utf-8') for res in result)
-          result_list.append(result)
-        except pexpect.TIMEOUT:
-          break
-    finally:
-      self._close()
-    return result_list
-
-  def _Set_uart_timeout(self, timeout):
-    """Set timeout value for waiting for the device response.
-
-    Args:
-      timeout: Timeout value in second.
-    """
-    self._dict['uart_timeout'] = timeout
-
-  def _Get_uart_timeout(self):
-    """Get timeout value for waiting for the device response.
-
-    Returns:
-      Timeout value in second.
-    """
-    return self._dict['uart_timeout']
-
-  def _Set_uart_regexp(self, regexp):
-    """Set the list of regular expressions which matches the command response.
-
-    Args:
-      regexp: A string which contains a list of regular expressions.
-    """
-    if not isinstance(regexp, str):
-      raise ptyError('The argument regexp should be a string.')
-    self._dict['uart_regexp'] = ast.literal_eval(regexp)
-
-  def _Get_uart_regexp(self):
-    """Get the list of regular expressions which matches the command response.
-
-    Returns:
-      A string which contains a list of regular expressions.
-    """
-    return str(self._dict['uart_regexp'])
-
-  def _Set_uart_cmd(self, cmd):
-    """Set the UART command and send it to the device.
-
-    If ec_uart_regexp is 'None', the command is just sent and it doesn't care
-    about its response.
-
-    If ec_uart_regexp is not 'None', the command is send and its response,
-    which matches the regular expression of ec_uart_regexp, will be kept.
-    Use its getter to obtain this result. If no match after ec_uart_timeout
-    seconds, a timeout error will be raised.
-
-    Args:
-      cmd: A string of UART command.
-    """
-    if self._dict['uart_regexp']:
-      self._dict['uart_cmd'] = self._issue_cmd_get_results(
-          cmd, self._dict['uart_regexp'], self._dict['uart_timeout'])
-    else:
-      self._dict['uart_cmd'] = None
-      self._issue_cmd(cmd)
-
-  def _Set_uart_multicmd(self, cmds):
-    """Set multiple UART commands and send them to the device.
-
-    Note that ec_uart_regexp is not supported to match the results.
-
-    Args:
-      cmds: A semicolon-separated string of UART commands.
-    """
-    self._issue_cmd(cmds.split(';'))
-
-  def _Get_uart_cmd(self):
-    """Get the result of the latest UART command.
-
-    Returns:
-      A string which contains a list of tuples, each of which contains the
-      entire matched string and all the subgroups of the match. 'None' if
-      the ec_uart_regexp is 'None'.
-    """
-    return str(self._dict['uart_cmd'])
-
-  def _Set_uart_capture(self, cmd):
-    """Set UART capture mode (on or off).
-
-    Once capture is enabled, UART output could be collected periodically by
-    invoking _Get_uart_stream() below.
-
-    Args:
-      cmd: True for on, False for off
-    """
-    self._interface.set_capture_active(cmd)
-
-  def _Get_uart_capture(self):
-    """Get the UART capture mode (on or off)."""
-    return self._interface.get_capture_active()
-
-  def _Get_uart_stream(self):
-    """Get uart stream generated since last time."""
-    return self._interface.get_stream()