| # 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. |
| |
| from autotest_lib.server.cros.faftsequence import FAFTSequence |
| import time |
| |
| |
| class firmware_ECWatchdog(FAFTSequence): |
| """ |
| Servo based EC watchdog test. |
| """ |
| version = 1 |
| |
| |
| # Delay of spin-wait in ms. Should be long enough to trigger watchdog reset. |
| WATCHDOG_DELAY = 3000 |
| |
| # Delay of EC power on. |
| EC_BOOT_DELAY = 1000 |
| |
| |
| def setup(self): |
| super(firmware_ECWatchdog, self).setup() |
| # Only run in normal mode |
| self.setup_dev_mode(False) |
| |
| |
| def reboot_by_watchdog(self): |
| """ |
| Trigger a watchdog reset. |
| """ |
| self.faft_client.system.run_shell_command("sync") |
| self.ec.send_command("waitms %d" % self.WATCHDOG_DELAY) |
| time.sleep((self.WATCHDOG_DELAY + self.EC_BOOT_DELAY) / 1000.0) |
| self.check_lid_and_power_on() |
| |
| |
| def run_once(self): |
| if not self.check_ec_capability(): |
| return |
| self.register_faft_sequence(( |
| { # Step 1, trigger a watchdog reset and power on system again. |
| 'reboot_action': self.reboot_by_watchdog, |
| }, |
| { # Step 2, dummy step to make sure step 1 reboots |
| } |
| )) |
| self.run_faft_sequence() |
