| # Copyright 2019 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 logging |
| import time |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.server.cros.faft.cr50_test import Cr50Test |
| |
| |
| class firmware_Cr50WPG3(Cr50Test): |
| """Verify WP in G3.""" |
| version = 1 |
| |
| WAIT_FOR_STATE = 10 |
| |
| def cleanup(self): |
| """Reenable servo wp.""" |
| try: |
| if hasattr(self, '_start_fw_wp_vref'): |
| self.servo.set_nocheck('fw_wp_state', self._start_fw_wp_state) |
| self.servo.set_nocheck('fw_wp_vref', self._start_fw_wp_vref) |
| finally: |
| super(firmware_Cr50WPG3, self).cleanup() |
| |
| |
| def run_once(self): |
| """Verify WP in G3.""" |
| if self.check_cr50_capability(['wp_on_in_g3'], suppress_warning=True): |
| raise error.TestNAError('WP not pulled up in G3') |
| if self.servo.main_device_is_ccd(): |
| raise error.TestNAError('Need servo flex to check WP') |
| |
| self.fast_open(True) |
| |
| self._start_fw_wp_state = self.servo.get('fw_wp_state') |
| self._start_fw_wp_vref = self.servo.get('fw_wp_vref') |
| # Stop forcing wp using servo, so we can set it with ccd. |
| self.servo.set_nocheck('fw_wp_state', 'reset') |
| self.servo.set_nocheck('fw_wp_vref', 'off') |
| |
| # disable write protect |
| self.cr50.send_command('wp disable atboot') |
| |
| # Verify we can see it's disabled. This should always work. If it |
| # doesn't, it may be a setup issue. |
| servo_wp_s0 = self.servo.get('fw_wp_state') |
| logging.info('servo wp: %s', servo_wp_s0) |
| if servo_wp_s0 != 'off': |
| raise error.TestError("WP isn't disabled in S0") |
| |
| self.faft_client.system.run_shell_command('poweroff') |
| time.sleep(self.WAIT_FOR_STATE) |
| if hasattr(self, 'ec'): |
| self.ec.send_command('hibernate') |
| time.sleep(self.WAIT_FOR_STATE) |
| |
| servo_wp_g3 = self.servo.get('fw_wp_state') |
| logging.info('servo wp: %s', servo_wp_g3) |
| self._try_to_bring_dut_up() |
| # Some boards don't power the EC_WP signal in G3, so it can't be |
| # disabled by cr50 in G3. |
| if servo_wp_g3 != 'off': |
| raise error.TestFail("WP can't be disabled by Cr50 in G3") |
