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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
6
7from autotest_lib.server.cros import vboot_constants as vboot
8from autotest_lib.server.cros.faft.firmware_test import FirmwareTest
9
10
11class firmware_UserRequestRecovery(FirmwareTest):
12    """
13    Servo based user request recovery boot test.
14
15    This test requires a USB disk plugged-in, which contains a Chrome OS test
16    image (built by "build_image --test"). On runtime, this test first requests
17    a recovery mode on next boot by setting the crossystem recovery_request
18    flag. It then triggers recovery mode by unplugging and plugging in the USB
19    disk and checks success of it.
20    """
21    version = 1
22
23    def ensure_normal_boot(self):
24        """Ensure normal mode boot this time.
25
26        If not, it may be a test failure during step 2, try to recover to
27        normal mode by simply rebooting the machine.
28        """
29        if not self.checkers.crossystem_checker(
30                {'mainfw_type': ('normal', 'developer')}):
31            self.switcher.mode_aware_reboot()
32
33    def initialize(self, host, cmdline_args, dev_mode=False, ec_wp=None):
34        super(firmware_UserRequestRecovery, self).initialize(host, cmdline_args,
35                                                             ec_wp=ec_wp)
36        self.switcher.setup_mode('dev' if dev_mode else 'normal')
37        self.setup_usbkey(usbkey=True, host=True)
38
39    def cleanup(self):
40        try:
41            self.ensure_normal_boot()
42        except Exception as e:
43            logging.error("Caught exception: %s", str(e))
44        super(firmware_UserRequestRecovery, self).cleanup()
45
46    def run_once(self, dev_mode=False):
47        logging.info("Request recovery boot.")
48        self.check_state((self.checkers.crossystem_checker, {
49                           'mainfw_type': 'developer' if dev_mode else 'normal',
50                           }))
51        # Execute on DUT: crossystem recovery_request=193
52        self.faft_client.system.request_recovery_boot()
53        # Execute from desktop:
54        #   dut-control warm_reset:on sleep:0.5000 warm_reset:off
55        self.switcher.simple_reboot()
56
57        # DUT should be waiting for USB after reboot.
58        # Connect servo USB to DUT and DUT should boot from USB.
59        # dut-control usb_mux_sel1:dut_sees_usbkey
60        # bypass_rec_mode will issue power_state:rec if host did not response in
61        # delay_reboot_to_ping seconds, which may reset recovery_reason and
62        # fail this tests.
63        self.switcher.bypass_rec_mode()
64        self.switcher.wait_for_client()
65
66        logging.info("Expected recovery boot, request recovery again.")
67        self.check_state((self.checkers.crossystem_checker, {
68                           'mainfw_type': 'recovery',
69                           'recovery_reason' : vboot.RECOVERY_REASON['US_TEST'],
70                           }))
71
72        self.faft_client.system.request_recovery_boot()
73        self.switcher.simple_reboot()
74        self.switcher.bypass_rec_mode()
75        self.switcher.wait_for_client()
76
77        logging.info("Expected recovery boot.")
78        self.check_state((self.checkers.crossystem_checker, {
79                           'mainfw_type': 'recovery',
80                           'recovery_reason' : vboot.RECOVERY_REASON['US_TEST'],
81                           }))
82        self.switcher.mode_aware_reboot()
83
84        logging.info("Expected normal boot.")
85        self.check_state((self.checkers.crossystem_checker, {
86                           'mainfw_type': 'developer' if dev_mode else 'normal',
87                           }))
88