J. Richard Barnette | 384056b | 2012-04-16 11:04:46 -0700 | [diff] [blame] | 1 | # Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 2 | # Use of this source code is governed by a BSD-style license that can be |
| 3 | # found in the LICENSE file. |
| 4 | # |
| 5 | # Expects to be run in an environment with sudo and no interactive password |
| 6 | # prompt, such as within the Chromium OS development chroot. |
| 7 | |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 8 | import os |
| 9 | |
Vic Yang | 3a7cf60 | 2012-11-07 17:28:39 +0800 | [diff] [blame] | 10 | import logging, re, time, xmlrpclib |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 11 | |
Simran Basi | 741b5d4 | 2012-05-18 11:27:15 -0700 | [diff] [blame] | 12 | from autotest_lib.client.common_lib import error |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 13 | from autotest_lib.server import utils |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 14 | from autotest_lib.server.cros.servo import power_state_controller |
J. Richard Barnette | 7548757 | 2013-03-08 12:47:50 -0800 | [diff] [blame] | 15 | from autotest_lib.server.cros.servo import programmer |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 16 | |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 17 | |
J. Richard Barnette | 384056b | 2012-04-16 11:04:46 -0700 | [diff] [blame] | 18 | class Servo(object): |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 19 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 20 | """Manages control of a Servo board. |
| 21 | |
| 22 | Servo is a board developed by hardware group to aide in the debug and |
| 23 | control of various partner devices. Servo's features include the simulation |
| 24 | of pressing the power button, closing the lid, and pressing Ctrl-d. This |
| 25 | class manages setting up and communicating with a servo demon (servod) |
| 26 | process. It provides both high-level functions for common servo tasks and |
| 27 | low-level functions for directly setting and reading gpios. |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 28 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 29 | """ |
| 30 | |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 31 | # Power button press delays in seconds. |
J. Richard Barnette | d2e4cbd | 2012-06-29 12:18:40 -0700 | [diff] [blame] | 32 | # |
J. Richard Barnette | 5383f07 | 2012-07-26 17:35:40 -0700 | [diff] [blame] | 33 | # The EC specification says that 8.0 seconds should be enough |
| 34 | # for the long power press. However, some platforms need a bit |
| 35 | # more time. Empirical testing has found these requirements: |
| 36 | # Alex: 8.2 seconds |
| 37 | # ZGB: 8.5 seconds |
| 38 | # The actual value is set to the largest known necessary value. |
| 39 | # |
| 40 | # TODO(jrbarnette) Being generous is the right thing to do for |
| 41 | # existing platforms, but if this code is to be used for |
| 42 | # qualification of new hardware, we should be less generous. |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 43 | SHORT_DELAY = 0.1 |
J. Richard Barnette | 5383f07 | 2012-07-26 17:35:40 -0700 | [diff] [blame] | 44 | |
Todd Broch | 31c8250 | 2011-08-29 08:14:39 -0700 | [diff] [blame] | 45 | # Maximum number of times to re-read power button on release. |
Todd Broch | cf7c665 | 2012-02-24 13:03:59 -0800 | [diff] [blame] | 46 | GET_RETRY_MAX = 10 |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 47 | |
J. Richard Barnette | 5383f07 | 2012-07-26 17:35:40 -0700 | [diff] [blame] | 48 | # Delays to deal with DUT state transitions. |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 49 | SLEEP_DELAY = 6 |
| 50 | BOOT_DELAY = 10 |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 51 | |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 52 | # Default minimum time interval between 'press' and 'release' |
| 53 | # keyboard events. |
Vic Yang | 0aca1c2 | 2012-11-19 18:33:56 -0800 | [diff] [blame] | 54 | SERVO_KEY_PRESS_DELAY = 0.1 |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 55 | |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 56 | # Time between an usb disk plugged-in and detected in the system. |
| 57 | USB_DETECTION_DELAY = 10 |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 58 | # Time to keep USB power off before and after USB mux direction is changed |
| 59 | USB_POWEROFF_DELAY = 2 |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 60 | |
Simran Basi | b7850bb | 2013-07-24 12:33:42 -0700 | [diff] [blame] | 61 | # Time to wait before timing out on servo initialization. |
| 62 | INIT_TIMEOUT_SECS = 10 |
Simran Basi | 5933134 | 2013-07-12 12:06:29 -0700 | [diff] [blame] | 63 | |
J. Richard Barnette | 67ccb87 | 2012-04-19 16:34:56 -0700 | [diff] [blame] | 64 | |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 65 | def __init__(self, servo_host): |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 66 | """Sets up the servo communication infrastructure. |
| 67 | |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 68 | @param servo_host: A ServoHost object representing |
| 69 | the host running servod. |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 70 | """ |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 71 | # TODO(fdeng): crbug.com/298379 |
| 72 | # We should move servo_host object out of servo object |
| 73 | # to minimize the dependencies on the rest of Autotest. |
| 74 | self._servo_host = servo_host |
| 75 | self._server = servo_host.get_servod_server_proxy() |
| 76 | board = self._server.get_board() |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 77 | self._power_state = ( |
| 78 | power_state_controller.create_controller(self, board)) |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 79 | |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 80 | # a string, showing what interface (host or dut) the USB device is |
| 81 | # connected to. |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 82 | self._usb_state = None |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 83 | self.set('dut_hub_pwren', 'on') |
| 84 | self.set('usb_mux_oe1', 'on') |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 85 | self.switch_usbkey('off') |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 86 | |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 87 | |
Tom Wai-Hong Tam | 22ee0e5 | 2013-04-03 13:36:39 +0800 | [diff] [blame] | 88 | def get_power_state_controller(self): |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 89 | """Return the power state controller for this Servo. |
| 90 | |
| 91 | The power state controller provides board-independent |
| 92 | interfaces for reset, power-on, power-off operations. |
| 93 | |
| 94 | """ |
| 95 | return self._power_state |
| 96 | |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 97 | |
J. Richard Barnette | b613397 | 2012-07-19 17:13:55 -0700 | [diff] [blame] | 98 | def initialize_dut(self, cold_reset=False): |
| 99 | """Initializes a dut for testing purposes. |
| 100 | |
| 101 | This sets various servo signals back to default values |
| 102 | appropriate for the target board. By default, if the DUT |
| 103 | is already on, it stays on. If the DUT is powered off |
| 104 | before initialization, its state afterward is unspecified. |
| 105 | |
J. Richard Barnette | b613397 | 2012-07-19 17:13:55 -0700 | [diff] [blame] | 106 | Rationale: Basic initialization of servo sets the lid open, |
| 107 | when there is a lid. This operation won't affect powered on |
| 108 | units; however, setting the lid open may power on a unit |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 109 | that's off, depending on the board type and previous state |
| 110 | of the device. |
| 111 | |
| 112 | If `cold_reset` is a true value, cold reset will be applied |
| 113 | to the DUT. Cold reset will force the DUT to power off; |
| 114 | however, the final state of the DUT depends on the board type. |
J. Richard Barnette | b613397 | 2012-07-19 17:13:55 -0700 | [diff] [blame] | 115 | |
| 116 | @param cold_reset If True, cold reset the device after |
| 117 | initialization. |
| 118 | """ |
| 119 | self._server.hwinit() |
| 120 | if cold_reset: |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 121 | self._power_state.cold_reset() |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 122 | |
| 123 | |
Tom Wai-Hong Tam | 1c86c7a | 2012-10-22 10:08:24 +0800 | [diff] [blame] | 124 | def is_localhost(self): |
| 125 | """Is the servod hosted locally? |
| 126 | |
| 127 | Returns: |
| 128 | True if local hosted; otherwise, False. |
| 129 | """ |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 130 | return self._servo_host.is_localhost() |
Tom Wai-Hong Tam | 1c86c7a | 2012-10-22 10:08:24 +0800 | [diff] [blame] | 131 | |
| 132 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 133 | def power_long_press(self): |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 134 | """Simulate a long power button press.""" |
J. Richard Barnette | f12bff2 | 2012-07-18 14:41:06 -0700 | [diff] [blame] | 135 | # After a long power press, the EC may ignore the next power |
| 136 | # button press (at least on Alex). To guarantee that this |
| 137 | # won't happen, we need to allow the EC one second to |
| 138 | # collect itself. |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 139 | self._server.power_long_press() |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 140 | |
| 141 | |
| 142 | def power_normal_press(self): |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 143 | """Simulate a normal power button press.""" |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 144 | self._server.power_normal_press() |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 145 | |
| 146 | |
| 147 | def power_short_press(self): |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 148 | """Simulate a short power button press.""" |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 149 | self._server.power_short_press() |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 150 | |
| 151 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 152 | def power_key(self, press_secs=''): |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 153 | """Simulate a power button press. |
| 154 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 155 | @param press_secs : Str. Time to press key. |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 156 | """ |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 157 | self._server.power_key(press_secs) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 158 | |
| 159 | |
| 160 | def lid_open(self): |
| 161 | """Simulate opening the lid.""" |
Craig Harrison | 4899726 | 2011-06-27 14:31:10 -0700 | [diff] [blame] | 162 | self.set_nocheck('lid_open', 'yes') |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 163 | |
| 164 | |
| 165 | def lid_close(self): |
Craig Harrison | 4899726 | 2011-06-27 14:31:10 -0700 | [diff] [blame] | 166 | """Simulate closing the lid. |
| 167 | |
| 168 | Waits 6 seconds to ensure the device is fully asleep before returning. |
| 169 | """ |
| 170 | self.set_nocheck('lid_open', 'no') |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 171 | time.sleep(Servo.SLEEP_DELAY) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 172 | |
| 173 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 174 | def ctrl_d(self, press_secs=''): |
| 175 | """Simulate Ctrl-d simultaneous button presses. |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 176 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 177 | @param press_secs : Str. Time to press key. |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 178 | """ |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 179 | self._server.ctrl_d(press_secs) |
Gediminas Ramanauskas | 9da80f2 | 2012-11-14 12:59:43 -0800 | [diff] [blame] | 180 | |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 181 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 182 | def ctrl_u(self): |
| 183 | """Simulate Ctrl-u simultaneous button presses. |
| 184 | |
| 185 | @param press_secs : Str. Time to press key. |
| 186 | """ |
| 187 | self._server.ctrl_u() |
Todd Broch | 9dfc3a8 | 2011-11-01 08:09:28 -0700 | [diff] [blame] | 188 | |
| 189 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 190 | def ctrl_enter(self, press_secs=''): |
| 191 | """Simulate Ctrl-enter simultaneous button presses. |
| 192 | |
| 193 | @param press_secs : Str. Time to press key. |
| 194 | """ |
| 195 | self._server.ctrl_enter(press_secs) |
Gediminas Ramanauskas | 3297d4f | 2012-09-10 15:30:10 -0700 | [diff] [blame] | 196 | |
| 197 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 198 | def d_key(self, press_secs=''): |
| 199 | """Simulate Enter key button press. |
| 200 | |
| 201 | @param press_secs : Str. Time to press key. |
| 202 | """ |
| 203 | self._server.d_key(press_secs) |
Todd Broch | 9dfc3a8 | 2011-11-01 08:09:28 -0700 | [diff] [blame] | 204 | |
| 205 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 206 | def ctrl_key(self, press_secs=''): |
| 207 | """Simulate Enter key button press. |
| 208 | |
| 209 | @param press_secs : Str. Time to press key. |
| 210 | """ |
| 211 | self._server.ctrl_key(press_secs) |
Todd Broch | 9753bd4 | 2012-03-21 10:15:08 -0700 | [diff] [blame] | 212 | |
| 213 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 214 | def enter_key(self, press_secs=''): |
| 215 | """Simulate Enter key button press. |
| 216 | |
| 217 | @param press_secs : Str. Time to press key. |
| 218 | """ |
| 219 | self._server.enter_key(press_secs) |
Todd Broch | 9dfc3a8 | 2011-11-01 08:09:28 -0700 | [diff] [blame] | 220 | |
| 221 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 222 | def refresh_key(self, press_secs=''): |
| 223 | """Simulate Refresh key (F3) button press. |
| 224 | |
| 225 | @param press_secs : Str. Time to press key. |
| 226 | """ |
| 227 | self._server.refresh_key(press_secs) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 228 | |
| 229 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 230 | def ctrl_refresh_key(self, press_secs=''): |
Tom Wai-Hong Tam | 9e61e66 | 2012-08-01 15:10:07 +0800 | [diff] [blame] | 231 | """Simulate Ctrl and Refresh (F3) simultaneous press. |
| 232 | |
| 233 | This key combination is an alternative of Space key. |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 234 | |
| 235 | @param press_secs : Str. Time to press key. |
Tom Wai-Hong Tam | 9e61e66 | 2012-08-01 15:10:07 +0800 | [diff] [blame] | 236 | """ |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 237 | self._server.ctrl_refresh_key(press_secs) |
Tom Wai-Hong Tam | 9e61e66 | 2012-08-01 15:10:07 +0800 | [diff] [blame] | 238 | |
| 239 | |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 240 | def imaginary_key(self, press_secs=''): |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 241 | """Simulate imaginary key button press. |
| 242 | |
| 243 | Maps to a key that doesn't physically exist. |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 244 | |
| 245 | @param press_secs : Str. Time to press key. |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 246 | """ |
Yusuf Mohsinally | 103441a | 2014-01-14 15:25:44 -0800 | [diff] [blame^] | 247 | self._server.imaginary_key(press_secs) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 248 | |
| 249 | |
Craig Harrison | 6b36b12 | 2011-06-28 17:58:43 -0700 | [diff] [blame] | 250 | def enable_recovery_mode(self): |
| 251 | """Enable recovery mode on device.""" |
| 252 | self.set('rec_mode', 'on') |
| 253 | |
| 254 | |
Gediminas Ramanauskas | ba352ad | 2012-11-09 09:43:32 -0800 | [diff] [blame] | 255 | def custom_recovery_mode(self): |
| 256 | """Custom key combination to enter recovery mode.""" |
| 257 | self._press_keys('rec_mode') |
| 258 | self.power_normal_press() |
| 259 | time.sleep(self.SERVO_KEY_PRESS_DELAY) |
| 260 | self.set_nocheck('kbd_en', 'off') |
| 261 | |
| 262 | |
Craig Harrison | 6b36b12 | 2011-06-28 17:58:43 -0700 | [diff] [blame] | 263 | def disable_recovery_mode(self): |
| 264 | """Disable recovery mode on device.""" |
| 265 | self.set('rec_mode', 'off') |
| 266 | |
| 267 | |
| 268 | def enable_development_mode(self): |
| 269 | """Enable development mode on device.""" |
| 270 | self.set('dev_mode', 'on') |
| 271 | |
| 272 | |
| 273 | def disable_development_mode(self): |
| 274 | """Disable development mode on device.""" |
| 275 | self.set('dev_mode', 'off') |
| 276 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 277 | def boot_devmode(self): |
| 278 | """Boot a dev-mode device that is powered off.""" |
Tom Wai-Hong Tam | 2386910 | 2012-01-17 15:41:30 +0800 | [diff] [blame] | 279 | self.power_short_press() |
Craig Harrison | 4899726 | 2011-06-27 14:31:10 -0700 | [diff] [blame] | 280 | self.pass_devmode() |
| 281 | |
| 282 | |
| 283 | def pass_devmode(self): |
| 284 | """Pass through boot screens in dev-mode.""" |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 285 | time.sleep(Servo.BOOT_DELAY) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 286 | self.ctrl_d() |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 287 | time.sleep(Servo.BOOT_DELAY) |
Craig Harrison | 4899726 | 2011-06-27 14:31:10 -0700 | [diff] [blame] | 288 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 289 | |
Todd Broch | efe72cb | 2012-07-11 19:58:53 -0700 | [diff] [blame] | 290 | def _get_xmlrpclib_exception(self, xmlexc): |
| 291 | """Get meaningful exception string from xmlrpc. |
| 292 | |
| 293 | Args: |
| 294 | xmlexc: xmlrpclib.Fault object |
| 295 | |
| 296 | xmlrpclib.Fault.faultString has the following format: |
| 297 | |
| 298 | <type 'exception type'>:'actual error message' |
| 299 | |
| 300 | Parse and return the real exception from the servod side instead of the |
| 301 | less meaningful one like, |
| 302 | <Fault 1: "<type 'exceptions.AttributeError'>:'tca6416' object has no |
| 303 | attribute 'hw_driver'"> |
| 304 | |
| 305 | Returns: |
| 306 | string of underlying exception raised in servod. |
| 307 | """ |
| 308 | return re.sub('^.*>:', '', xmlexc.faultString) |
| 309 | |
| 310 | |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 311 | def get(self, gpio_name): |
| 312 | """Get the value of a gpio from Servod.""" |
| 313 | assert gpio_name |
Todd Broch | efe72cb | 2012-07-11 19:58:53 -0700 | [diff] [blame] | 314 | try: |
Simran Basi | 1cbc5f2 | 2013-07-17 14:23:58 -0700 | [diff] [blame] | 315 | return self._server.get(gpio_name) |
Todd Broch | efe72cb | 2012-07-11 19:58:53 -0700 | [diff] [blame] | 316 | except xmlrpclib.Fault as e: |
| 317 | err_msg = "Getting '%s' :: %s" % \ |
| 318 | (gpio_name, self._get_xmlrpclib_exception(e)) |
| 319 | raise error.TestFail(err_msg) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 320 | |
| 321 | |
| 322 | def set(self, gpio_name, gpio_value): |
| 323 | """Set and check the value of a gpio using Servod.""" |
Chrome Bot | 9a1137d | 2011-07-19 14:35:00 -0700 | [diff] [blame] | 324 | self.set_nocheck(gpio_name, gpio_value) |
Todd Broch | cf7c665 | 2012-02-24 13:03:59 -0800 | [diff] [blame] | 325 | retry_count = Servo.GET_RETRY_MAX |
| 326 | while gpio_value != self.get(gpio_name) and retry_count: |
| 327 | logging.warn("%s != %s, retry %d", gpio_name, gpio_value, |
| 328 | retry_count) |
| 329 | retry_count -= 1 |
| 330 | time.sleep(Servo.SHORT_DELAY) |
| 331 | if not retry_count: |
| 332 | assert gpio_value == self.get(gpio_name), \ |
| 333 | 'Servo failed to set %s to %s' % (gpio_name, gpio_value) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 334 | |
| 335 | |
| 336 | def set_nocheck(self, gpio_name, gpio_value): |
| 337 | """Set the value of a gpio using Servod.""" |
| 338 | assert gpio_name and gpio_value |
Todd Broch | 9753bd4 | 2012-03-21 10:15:08 -0700 | [diff] [blame] | 339 | logging.info('Setting %s to %s', gpio_name, gpio_value) |
Todd Broch | efe72cb | 2012-07-11 19:58:53 -0700 | [diff] [blame] | 340 | try: |
Simran Basi | 1cbc5f2 | 2013-07-17 14:23:58 -0700 | [diff] [blame] | 341 | self._server.set(gpio_name, gpio_value) |
Todd Broch | efe72cb | 2012-07-11 19:58:53 -0700 | [diff] [blame] | 342 | except xmlrpclib.Fault as e: |
| 343 | err_msg = "Setting '%s' to '%s' :: %s" % \ |
| 344 | (gpio_name, gpio_value, self._get_xmlrpclib_exception(e)) |
| 345 | raise error.TestFail(err_msg) |
Craig Harrison | 2b6c6fc | 2011-06-23 10:34:02 -0700 | [diff] [blame] | 346 | |
| 347 | |
Tom Wai-Hong Tam | 92569bb | 2013-03-26 14:25:10 +0800 | [diff] [blame] | 348 | def set_get_all(self, controls): |
| 349 | """Set &| get one or more control values. |
| 350 | |
| 351 | @param controls: list of strings, controls to set &| get. |
| 352 | |
| 353 | @raise: error.TestError in case error occurs setting/getting values. |
| 354 | """ |
| 355 | rv = [] |
| 356 | try: |
Vic Yang | cad9acb | 2013-05-21 14:02:05 +0800 | [diff] [blame] | 357 | logging.info('Set/get all: %s', str(controls)) |
Tom Wai-Hong Tam | 92569bb | 2013-03-26 14:25:10 +0800 | [diff] [blame] | 358 | rv = self._server.set_get_all(controls) |
| 359 | except xmlrpclib.Fault as e: |
| 360 | # TODO(waihong): Remove the following backward compatibility when |
| 361 | # the new versions of hdctools are deployed. |
| 362 | if 'not supported' in str(e): |
| 363 | logging.warning('The servod is too old that set_get_all ' |
| 364 | 'not supported. Use set and get instead.') |
| 365 | for control in controls: |
| 366 | if ':' in control: |
| 367 | (name, value) = control.split(':') |
| 368 | if name == 'sleep': |
| 369 | time.sleep(float(value)) |
| 370 | else: |
| 371 | self.set_nocheck(name, value) |
| 372 | rv.append(True) |
| 373 | else: |
| 374 | rv.append(self.get(name)) |
| 375 | else: |
| 376 | err_msg = "Problem with '%s' :: %s" % \ |
| 377 | (controls, self._get_xmlrpclib_exception(e)) |
| 378 | raise error.TestFail(err_msg) |
| 379 | return rv |
| 380 | |
| 381 | |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 382 | # TODO(waihong) It may fail if multiple servo's are connected to the same |
| 383 | # host. Should look for a better way, like the USB serial name, to identify |
| 384 | # the USB device. |
Simran Basi | 741b5d4 | 2012-05-18 11:27:15 -0700 | [diff] [blame] | 385 | # TODO(sbasi) Remove this code from autoserv once firmware tests have been |
| 386 | # updated. |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 387 | def probe_host_usb_dev(self): |
| 388 | """Probe the USB disk device plugged-in the servo from the host side. |
| 389 | |
| 390 | It tries to switch the USB mux to make the host unable to see the |
| 391 | USB disk and compares the result difference. |
| 392 | |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 393 | Returns: |
| 394 | A string of USB disk path, like '/dev/sdb', or None if not existed. |
| 395 | """ |
| 396 | cmd = 'ls /dev/sd[a-z]' |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 397 | original_value = self.get_usbkey_direction() |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 398 | |
| 399 | # Make the host unable to see the USB disk. |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 400 | self.switch_usbkey('off') |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 401 | no_usb_set = set(self.system_output(cmd, ignore_status=True).split()) |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 402 | |
| 403 | # Make the host able to see the USB disk. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 404 | self.switch_usbkey('host') |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 405 | has_usb_set = set(self.system_output(cmd, ignore_status=True).split()) |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 406 | |
| 407 | # Back to its original value. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 408 | if original_value != self.get_usbkey_direction(): |
| 409 | self.switch_usbkey(original_value) |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 410 | |
| 411 | diff_set = has_usb_set - no_usb_set |
| 412 | if len(diff_set) == 1: |
| 413 | return diff_set.pop() |
| 414 | else: |
| 415 | return None |
| 416 | |
| 417 | |
J. Richard Barnette | 69929a5 | 2013-03-15 13:22:11 -0700 | [diff] [blame] | 418 | def recovery_supported(self): |
| 419 | """Return whether servo-based recovery should work. |
| 420 | |
| 421 | Use of `image_to_servo_usb()` and `install_recovery_image()` |
| 422 | relies on DUT-board specific behaviors, and is not supported |
| 423 | for all types of board. Return whether these two operations |
| 424 | are expected to succeed for the current DUT. |
| 425 | |
| 426 | @return `True` iff the recovery related methods are supported |
| 427 | for this servo and DUT. |
| 428 | |
| 429 | """ |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 430 | return self._power_state.recovery_supported() |
J. Richard Barnette | 69929a5 | 2013-03-15 13:22:11 -0700 | [diff] [blame] | 431 | |
| 432 | |
Mike Truty | 49153d8 | 2012-08-21 22:27:30 -0500 | [diff] [blame] | 433 | def image_to_servo_usb(self, image_path=None, |
| 434 | make_image_noninteractive=False): |
| 435 | """Install an image to the USB key plugged into the servo. |
| 436 | |
| 437 | This method may copy any image to the servo USB key including a |
| 438 | recovery image or a test image. These images are frequently used |
| 439 | for test purposes such as restoring a corrupted image or conducting |
| 440 | an upgrade of ec/fw/kernel as part of a test of a specific image part. |
| 441 | |
| 442 | Args: |
| 443 | image_path: Path on the host to the recovery image. |
| 444 | make_image_noninteractive: Make the recovery image noninteractive, |
| 445 | therefore the DUT will reboot |
| 446 | automatically after installation. |
| 447 | """ |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 448 | # We're about to start plugging/unplugging the USB key. We |
| 449 | # don't know the state of the DUT, or what it might choose |
| 450 | # to do to the device after hotplug. To avoid surprises, |
| 451 | # force the DUT to be off. |
| 452 | self._server.hwinit() |
| 453 | self._power_state.power_off() |
Mike Truty | 49153d8 | 2012-08-21 22:27:30 -0500 | [diff] [blame] | 454 | |
| 455 | # Set up Servo's usb mux. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 456 | self.switch_usbkey('host') |
Mike Truty | 49153d8 | 2012-08-21 22:27:30 -0500 | [diff] [blame] | 457 | if image_path: |
Tom Wai-Hong Tam | 42f136d | 2012-10-26 11:11:23 +0800 | [diff] [blame] | 458 | logging.info('Searching for usb device and copying image to it. ' |
| 459 | 'Please wait a few minutes...') |
Mike Truty | 49153d8 | 2012-08-21 22:27:30 -0500 | [diff] [blame] | 460 | if not self._server.download_image_to_usb(image_path): |
| 461 | logging.error('Failed to transfer requested image to USB. ' |
| 462 | 'Please take a look at Servo Logs.') |
| 463 | raise error.AutotestError('Download image to usb failed.') |
| 464 | if make_image_noninteractive: |
| 465 | logging.info('Making image noninteractive') |
| 466 | if not self._server.make_image_noninteractive(): |
| 467 | logging.error('Failed to make image noninteractive. ' |
| 468 | 'Please take a look at Servo Logs.') |
| 469 | |
| 470 | |
Simran Basi | 741b5d4 | 2012-05-18 11:27:15 -0700 | [diff] [blame] | 471 | def install_recovery_image(self, image_path=None, |
J. Richard Barnette | b6de7e3 | 2013-02-14 13:28:04 -0800 | [diff] [blame] | 472 | make_image_noninteractive=False): |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 473 | """Install the recovery image specied by the path onto the DUT. |
| 474 | |
| 475 | This method uses google recovery mode to install a recovery image |
| 476 | onto a DUT through the use of a USB stick that is mounted on a servo |
Tom Wai-Hong Tam | a07115e | 2012-01-09 12:27:01 +0800 | [diff] [blame] | 477 | board specified by the usb_dev. If no image path is specified |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 478 | we use the recovery image already on the usb image. |
| 479 | |
| 480 | Args: |
| 481 | image_path: Path on the host to the recovery image. |
Simran Basi | 741b5d4 | 2012-05-18 11:27:15 -0700 | [diff] [blame] | 482 | make_image_noninteractive: Make the recovery image noninteractive, |
| 483 | therefore the DUT will reboot |
| 484 | automatically after installation. |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 485 | """ |
Mike Truty | 49153d8 | 2012-08-21 22:27:30 -0500 | [diff] [blame] | 486 | self.image_to_servo_usb(image_path, make_image_noninteractive) |
J. Richard Barnette | 75136b3 | 2013-03-26 13:38:44 -0700 | [diff] [blame] | 487 | self._power_state.power_on(rec_mode=power_state_controller.REC_ON) |
J. Richard Barnette | 41320ee | 2013-03-11 13:00:13 -0700 | [diff] [blame] | 488 | self.switch_usbkey('dut') |
Jon Salz | c88e5b6 | 2011-11-30 14:38:54 +0800 | [diff] [blame] | 489 | |
| 490 | |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 491 | def _scp_image(self, image_path): |
| 492 | """Copy image to the servo host. |
| 493 | |
| 494 | When programming a firmware image on the DUT, the image must be |
| 495 | located on the host to which the servo device is connected. Sometimes |
| 496 | servo is controlled by a remote host, in this case the image needs to |
| 497 | be transferred to the remote host. |
| 498 | |
| 499 | @param image_path: a string, name of the firmware image file to be |
| 500 | transferred. |
| 501 | @return: a string, full path name of the copied file on the remote. |
| 502 | """ |
| 503 | |
| 504 | dest_path = os.path.join('/tmp', os.path.basename(image_path)) |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 505 | self._servo_host.send_file(image_path, dest_path) |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 506 | return dest_path |
| 507 | |
| 508 | |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 509 | def system(self, command, timeout=None): |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 510 | """Execute the passed in command on the servod host.""" |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 511 | logging.info('Will execute on servo host: %s', command) |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 512 | self._servo_host.run(command, timeout=timeout) |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 513 | |
| 514 | |
| 515 | def system_output(self, command, timeout=None, |
| 516 | ignore_status=False, args=()): |
| 517 | """Execute the passed in command on the servod host, return stdout. |
| 518 | |
| 519 | @param command, a string, the command to execute |
| 520 | @param timeout, an int, max number of seconds to wait til command |
| 521 | execution completes |
| 522 | @ignore_status, a Boolean, if true - ignore command's nonzero exit |
| 523 | status, otherwise an exception will be thrown |
| 524 | @param args, a tuple of strings, each becoming a separate command line |
| 525 | parameter for the command |
| 526 | @return: command's stdout as a string. |
| 527 | """ |
Vadim Bendebury | 89ec24e | 2012-12-17 12:54:18 -0800 | [diff] [blame] | 528 | logging.info('Will execute and collect output on servo host: %s %s', |
| 529 | command, ' '.join("'%s'" % x for x in args)) |
Fang Deng | 5d518f4 | 2013-08-02 14:04:32 -0700 | [diff] [blame] | 530 | return self._servo_host.run(command, timeout=timeout, |
| 531 | ignore_status=ignore_status, |
| 532 | args=args).stdout.strip() |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 533 | |
| 534 | |
| 535 | def program_ec(self, board, image): |
Vadim Bendebury | 1a7ec63 | 2013-02-17 16:22:09 -0800 | [diff] [blame] | 536 | """Program EC on a given board using given image. |
| 537 | |
| 538 | @param board: a string, type of the DUT board |
| 539 | @param image: a string, file name of the EC image to program on the |
| 540 | DUT |
| 541 | """ |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 542 | if not self.is_localhost(): |
| 543 | image = self._scp_image(image) |
| 544 | programmer.program_ec(board, self, image) |
| 545 | |
| 546 | |
| 547 | def program_bootprom(self, board, image): |
Vadim Bendebury | 1a7ec63 | 2013-02-17 16:22:09 -0800 | [diff] [blame] | 548 | """Program bootprom on a given board using given image. |
| 549 | |
| 550 | In case servo is controlled by a remote host, the image needs to be |
| 551 | transferred to the host. |
| 552 | |
| 553 | If the device tree subdirectory is present along with the image, the |
| 554 | subdirectory is also copied to the remote host. |
| 555 | |
| 556 | @param board: a string, type of the DUT board |
| 557 | @param image: a string, file name of the firmware image to program on |
| 558 | the DUT. The device tree subdirectory, if present, is on |
| 559 | the same level with the image file. |
| 560 | """ |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 561 | if not self.is_localhost(): |
Vadim Bendebury | 1a7ec63 | 2013-02-17 16:22:09 -0800 | [diff] [blame] | 562 | dts_path = os.path.join(os.path.dirname(image), 'dts') |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 563 | image = self._scp_image(image) |
Vadim Bendebury | 1a7ec63 | 2013-02-17 16:22:09 -0800 | [diff] [blame] | 564 | if os.path.isdir(dts_path): |
| 565 | self._scp_image(dts_path) |
Vadim Bendebury | b80ba59 | 2012-12-07 15:02:34 -0800 | [diff] [blame] | 566 | programmer.program_bootprom(board, self, image) |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 567 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 568 | |
| 569 | def _switch_usbkey_power(self, power_state, detection_delay=False): |
| 570 | """Switch usbkey power. |
| 571 | |
| 572 | This function switches usbkey power by setting the value of |
| 573 | 'prtctl4_pwren'. If the power is already in the |
| 574 | requested state, this function simply returns. |
| 575 | |
| 576 | @param power_state: A string, 'on' or 'off'. |
| 577 | @param detection_delay: A boolean value, if True, sleep |
| 578 | for |USB_DETECTION_DELAY| after switching |
| 579 | the power on. |
| 580 | """ |
| 581 | self.set('prtctl4_pwren', power_state) |
| 582 | if power_state == 'off': |
| 583 | time.sleep(self.USB_POWEROFF_DELAY) |
| 584 | elif detection_delay: |
| 585 | time.sleep(self.USB_DETECTION_DELAY) |
| 586 | |
| 587 | |
| 588 | def switch_usbkey(self, usb_state): |
| 589 | """Connect USB flash stick to either host or DUT, or turn USB port off. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 590 | |
| 591 | This function switches the servo multiplexer to provide electrical |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 592 | connection between the USB port J3 and either host or DUT side. It |
| 593 | can also be used to turn the USB port off. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 594 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 595 | Switching to 'dut' or 'host' is accompanied by powercycling |
| 596 | of the USB stick, because it sometimes gets wedged if the mux |
| 597 | is switched while the stick power is on. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 598 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 599 | @param usb_state: A string, one of 'dut', 'host', or 'off'. |
| 600 | 'dut' and 'host' indicate which side the |
| 601 | USB flash device is required to be connected to. |
| 602 | 'off' indicates turning the USB port off. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 603 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 604 | @raise: error.TestError in case the parameter is not 'dut' |
| 605 | 'host', or 'off'. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 606 | """ |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 607 | if self.get_usbkey_direction() == usb_state: |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 608 | return |
| 609 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 610 | if usb_state == 'off': |
| 611 | self._switch_usbkey_power('off') |
| 612 | self._usb_state = usb_state |
| 613 | return |
| 614 | elif usb_state == 'host': |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 615 | mux_direction = 'servo_sees_usbkey' |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 616 | elif usb_state == 'dut': |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 617 | mux_direction = 'dut_sees_usbkey' |
| 618 | else: |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 619 | raise error.TestError('Unknown USB state request: %s' % usb_state) |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 620 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 621 | self._switch_usbkey_power('off') |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 622 | self.set('usb_mux_sel1', mux_direction) |
| 623 | time.sleep(self.USB_POWEROFF_DELAY) |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 624 | self._switch_usbkey_power('on', usb_state == 'host') |
| 625 | self._usb_state = usb_state |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 626 | |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 627 | |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 628 | def get_usbkey_direction(self): |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 629 | """Get which side USB is connected to or 'off' if usb power is off. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 630 | |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 631 | @return: A string, one of 'dut', 'host', or 'off'. |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 632 | """ |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 633 | if not self._usb_state: |
| 634 | if self.get('prtctl4_pwren') == 'off': |
| 635 | self._usb_state = 'off' |
| 636 | elif self.get('usb_mux_sel1').startswith('dut'): |
| 637 | self._usb_state = 'dut' |
Vadim Bendebury | e7bd936 | 2012-12-19 14:35:20 -0800 | [diff] [blame] | 638 | else: |
Fang Deng | afb8814 | 2013-05-30 17:44:31 -0700 | [diff] [blame] | 639 | self._usb_state = 'host' |
| 640 | return self._usb_state |