1# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5import logging
6from autotest_lib.server.cros.faft.firmware_test import FirmwareTest
7
8
9class firmware_TryFwB(FirmwareTest):
10    """
11    Servo based RW firmware B boot test.
12    """
13    version = 1
14
15    def initialize(self, host, cmdline_args, dev_mode=False, ec_wp=None):
16        super(firmware_TryFwB, self).initialize(host, cmdline_args, ec_wp=ec_wp)
17        self.switcher.setup_mode('dev' if dev_mode else 'normal')
18        self.setup_usbkey(usbkey=False)
19        if not self.fw_vboot2:
20            self.setup_tried_fwb(tried_fwb=False)
21
22    def cleanup(self):
23        try:
24            self.setup_tried_fwb(tried_fwb=False)
25        except Exception as e:
26            logging.error("Caught exception: %s", str(e))
27        super(firmware_TryFwB, self).cleanup()
28
29    def run_once(self):
30        logging.info("Set fwb_tries flag")
31        self.check_state((self.checkers.fw_tries_checker, 'A'))
32        self.try_fwb()
33        self.switcher.mode_aware_reboot()
34
35        logging.info("Expected firmware B boot, reboot")
36        self.check_state((self.checkers.fw_tries_checker, 'B'))
37        self.switcher.mode_aware_reboot()
38
39        expected_slot = 'B' if self.fw_vboot2 else 'A'
40        logging.info("Expected firmware " + expected_slot + " boot, done.")
41        self.check_state((self.checkers.fw_tries_checker, expected_slot))
42