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1# Copyright 2016 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
6import os
7import time
8
9from autotest_lib.client.common_lib import error
10from autotest_lib.server import test
11from autotest_lib.server.cros import servo_keyboard_utils
12
13
14class firmware_FlashServoKeyboardMap(test.test):
15    """A test to flash the keyboard map on servo."""
16    version = 1
17
18    _ATMEGA_RESET_DELAY = 0.2
19    _USB_PRESENT_DELAY = 1
20
21    def run_once(self, host=None):
22        """Body of the test."""
23
24        servo = host.servo
25        if host.run('hash dfu-programmer', ignore_status=True).exit_status:
26            raise error.TestError(
27                'The image is too old that does not have dfu-programmer.')
28
29        try:
30            servo.set_nocheck('init_usb_keyboard', 'on')
31
32            # Check the result of lsusb.
33            time.sleep(self._USB_PRESENT_DELAY)
34            lsusb_cmd = ('lsusb -d ' +
35                         servo_keyboard_utils.ATMEL_USB_VENDOR_ID + ':')
36            result = host.run(lsusb_cmd).stdout.strip()
37            if ('LUFA Keyboard Demo' in result and
38                    servo_keyboard_utils.is_servo_usb_wake_capable(host)):
39                logging.info('Already using the new keyboard map.')
40                return
41
42             # Boot AVR into DFU mode by enabling the HardWareBoot mode
43             # strapping and reset.
44            servo.set_get_all(['at_hwb:on',
45                               'atmega_rst:on',
46                               'sleep:%f' % self._ATMEGA_RESET_DELAY,
47                               'atmega_rst:off',
48                               'sleep:%f' % self._ATMEGA_RESET_DELAY,
49                               'at_hwb:off'])
50
51            result = host.run(lsusb_cmd).stdout.strip()
52            if not 'Atmel Corp. atmega32u4 DFU bootloader' in result:
53                message = 'Not an expected chip: %s' % result
54                logging.error(message)
55                raise error.TestFail(message)
56
57            # Update the keyboard map.
58            local_path = os.path.join(self.bindir, 'test_data', 'keyboard.hex')
59            host.send_file(local_path, '/tmp')
60            logging.info('Updating the keyboard map...')
61            host.run('dfu-programmer atmega32u4 erase --force')
62            host.run('dfu-programmer atmega32u4 flash /tmp/keyboard.hex')
63
64            # Reset the chip.
65            servo.set_get_all(['atmega_rst:on',
66                               'sleep:%f' % self._ATMEGA_RESET_DELAY,
67                               'atmega_rst:off'])
68
69            # Check the result of lsusb.
70            time.sleep(self._USB_PRESENT_DELAY)
71            result = host.run(lsusb_cmd).stdout.strip()
72            if 'LUFA Keyboard Demo' in result:
73                logging.info('Update successfully!')
74            else:
75                message = 'Update failed; got the result: %s' % result
76                logging.error(message)
77                raise error.TestFail(message)
78
79        finally:
80            # Restore the default settings.
81            # Select the chip on the USB mux unless using Servo V4
82            if 'servo_v4' not in servo.get_servo_version():
83                servo.set('usb_mux_sel4', 'on')
84