| # 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. |
| |
| from autotest_lib.server.cros.faftsequence import FAFTSequence |
| |
| |
| class firmware_ECUsbPorts(FAFTSequence): |
| """ |
| Servo based EC USB port control test. |
| """ |
| version = 1 |
| |
| |
| # Delay for remote shell command call to return |
| RPC_DELAY = 1 |
| |
| # Delay between turning off and on USB ports |
| REBOOT_DELAY = 6 |
| |
| |
| def fake_reboot_by_usb_mode_change(self): |
| """ |
| Turn off USB ports and also kill FAFT client so that this acts like a |
| reboot. If USB ports cannot be turned off or on, reboot step would |
| fail. |
| """ |
| for_all_ports_cmd = ('id=0; while ectool usbchargemode "$id" %d;' + |
| 'do id=$((id+1)); sleep 0.5; done') |
| ports_off_cmd = for_all_ports_cmd % 0 |
| ports_on_cmd = for_all_ports_cmd % 3 |
| cmd = ("(sleep %d; %s; sleep %d; %s)&" % |
| (self.RPC_DELAY, ports_off_cmd, self.REBOOT_DELAY, ports_on_cmd)) |
| self.faft_client.run_shell_command(cmd) |
| self.kill_remote() |
| |
| |
| def run_once(self, host=None): |
| self.register_faft_sequence(( |
| { # Step 1, turn off all USB ports and then turn them on again |
| 'reboot_action': self.fake_reboot_by_usb_mode_change, |
| }, |
| { # Step 2, dummy step to make sure step 1 reboots |
| } |
| )) |
| self.run_faft_sequence() |
