| # 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 import vboot_constants as vboot |
| from autotest_lib.server.cros.faft.faft_classes import FAFTSequence |
| |
| |
| class firmware_RollbackFirmware(FAFTSequence): |
| """ |
| Servo based firmware rollback test. |
| |
| This test requires a USB disk plugged-in, which contains a Chrome OS test |
| image (built by "build_image --test"). On runtime, this test rollbacks |
| firmware A and results firmware B boot. It then rollbacks firmware B and |
| results recovery boot. |
| """ |
| version = 1 |
| |
| |
| def initialize(self, host, cmdline_args, dev_mode=False): |
| super(firmware_RollbackFirmware, self).initialize(host, cmdline_args) |
| self.backup_firmware() |
| self.setup_dev_mode(dev_mode) |
| self.setup_usbkey(usbkey=True, host=False) |
| |
| |
| def cleanup(self): |
| self.restore_firmware() |
| super(firmware_RollbackFirmware, self).cleanup() |
| |
| |
| def run_once(self, dev_mode=False): |
| # Recovery reason RW_FW_ROLLBACK available after Alex/ZGB. |
| if self.faft_client.system.get_platform_name() in ( |
| 'Mario', 'Alex', 'ZGB'): |
| recovery_reason = vboot.RECOVERY_REASON['RO_INVALID_RW'] |
| else: |
| recovery_reason = vboot.RECOVERY_REASON['RW_FW_ROLLBACK'] |
| |
| self.register_faft_sequence(( |
| { # Step 1, rollbacks firmware A. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer' if dev_mode else 'normal', |
| 'tried_fwb': '0', |
| }), |
| 'userspace_action': |
| (self.faft_client.bios.move_version_backward, 'a'), |
| }, |
| { # Step 2, expected firmware B boot and rollbacks firmware B. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'mainfw_act': 'B', |
| 'mainfw_type': ('normal', 'developer'), |
| 'tried_fwb': '0', |
| }), |
| 'userspace_action': |
| (self.faft_client.bios.move_version_backward, 'b'), |
| 'firmware_action': None if dev_mode else |
| self.wait_fw_screen_and_plug_usb, |
| 'install_deps_after_boot': True, |
| }, |
| { # Step 3, expected recovery boot and restores firmware A and B. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'mainfw_type': 'recovery', |
| 'recovery_reason' : recovery_reason, |
| }), |
| 'userspace_action': ( |
| self.faft_client.bios.move_version_forward, |
| (('a', 'b'),)), |
| }, |
| { # Step 4, expected firmware A boot and done. |
| 'state_checker': (self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer' if dev_mode else 'normal', |
| 'tried_fwb': '0', |
| }), |
| }, |
| )) |
| self.run_faft_sequence() |