| # Copyright (c) 2011 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 |
| |
| from autotest_lib.server.cros import vboot_constants as vboot |
| from autotest_lib.server.cros.faftsequence import FAFTSequence |
| |
| |
| class firmware_DevFwNormalBoot(FAFTSequence): |
| """ |
| Servo based test forcing normal boot on dev firmware. |
| |
| This test is only meaningful on Alex/ZGB, which contains two different |
| types of RW firmware: normal and developer firmware. It requires a USB |
| disk plugged-in, which contains a Chrome OS test image (built by |
| "build_image --test"). On runtime, this test sets developer firmware in |
| A and then corrupts the firmware in B. It forces to do a normal boot. |
| Going to recovery is expected. |
| """ |
| version = 1 |
| |
| # True if Alex/ZGB which contains two different types of firmware. |
| has_different_dev_fw = False |
| |
| |
| def corrupt_fw_b_and_disable_devsw(self): |
| self.faft_client.bios.corrupt_sig('b') |
| self.servo.disable_development_mode() |
| |
| |
| def restore_fw_b_and_enable_devsw(self): |
| self.faft_client.bios.restore_sig('b') |
| self.servo.enable_development_mode() |
| |
| |
| def setup(self): |
| super(firmware_DevFwNormalBoot, self).setup() |
| # This test is only meaningful on Alex/ZGB. |
| if self.faft_client.system.get_platform_name() in ('Alex', 'ZGB'): |
| self.has_different_dev_fw = True |
| # This test is run on developer mode only. |
| self.setup_dev_mode(dev_mode=True) |
| self.setup_usbkey(usbkey=True, host=False) |
| |
| |
| def run_once(self): |
| if self.has_different_dev_fw: |
| self.register_faft_sequence(( |
| { # Step 1, expected dev fw on A, corrupt fw B and force |
| # normal boot. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'devsw_boot': '1', |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer', |
| }), |
| 'userspace_action': self.corrupt_fw_b_and_disable_devsw, |
| 'firmware_action': self.wait_fw_screen_and_plug_usb, |
| 'install_deps_after_boot': True, |
| }, |
| { # Step 2, expected recovery boot, resume developer boot. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'devsw_boot': '0', |
| 'mainfw_type': 'recovery', |
| 'recovery_reason' : |
| vboot.RECOVERY_REASON['RO_INVALID_RW'], |
| }), |
| 'userspace_action': self.restore_fw_b_and_enable_devsw, |
| }, |
| { # Step 3, expected developer mode as before, done. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'devsw_boot': '1', |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer', |
| }), |
| } |
| )) |
| self.run_faft_sequence() |
| else: |
| logging.info('This test does nothing on non-Alex/ZGB devices.') |
