| # 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. |
| |
| import logging |
| |
| from autotest_lib.server.cros import vboot_constants as vboot |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_RollbackFirmware(FirmwareTest): |
| """ |
| 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'] |
| elif self.fw_vboot2: |
| recovery_reason = vboot.RECOVERY_REASON['RO_INVALID_RW'] |
| else: |
| recovery_reason = vboot.RECOVERY_REASON['RW_FW_ROLLBACK'] |
| |
| logging.info("Rollback firmware A.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer' if dev_mode else 'normal', |
| 'tried_fwb': '0', |
| })) |
| self.faft_client.bios.move_version_backward('a') |
| self.reboot_warm() |
| |
| logging.info("Expected firmware B boot and rollback firmware B.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'B', |
| 'mainfw_type': ('normal', 'developer'), |
| 'tried_fwb': '0', |
| })) |
| self.faft_client.bios.move_version_backward('b') |
| self.reboot_warm(wait_for_dut_up=False) |
| if not dev_mode: |
| self.wait_fw_screen_and_plug_usb() |
| self.wait_for_client(install_deps=True) |
| |
| logging.info("Expected recovery boot and restores firmware A and B.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_type': 'recovery', |
| 'recovery_reason': recovery_reason, |
| })) |
| self.faft_client.bios.move_version_forward(('a', 'b')) |
| self.reboot_warm() |
| |
| logging.info("Expected firmware A boot and done.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'mainfw_type': 'developer' if dev_mode else 'normal', |
| 'tried_fwb': '0', |
| })) |
