| # 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. |
| |
| import logging |
| import time |
| |
| from autotest_lib.server.cros.faftsequence import FAFTSequence |
| |
| class firmware_ECSharedMem(FAFTSequence): |
| """ |
| Servo based EC shared memory test. |
| """ |
| version = 1 |
| |
| |
| def setup(self): |
| super(firmware_ECSharedMem, self).setup() |
| # Only run in normal mode |
| self.setup_dev_mode(False) |
| |
| |
| def shared_mem_checker(self): |
| match = self.ec.send_command_get_output("shmem", |
| ["Size:\s+([0-9-]+)\r"])[0] |
| shmem_size = int(match[1]) |
| logging.info("EC shared memory size if %d bytes", shmem_size) |
| if shmem_size <= 0: |
| return False |
| elif shmem_size <= 256: |
| logging.warning("EC shared memory is less than 256 bytes") |
| return True |
| |
| |
| def jump_checker(self): |
| self.ec.send_command("sysjump RW") |
| time.sleep(self.delay.ec_boot_to_console) |
| return self.shared_mem_checker() |
| |
| |
| def run_once(self): |
| if not self.check_ec_capability(): |
| return |
| self.register_faft_sequence(( |
| { # Step 1, check shared memory in normal operation and crash EC |
| 'state_checker': self.shared_mem_checker, |
| 'reboot_action': (self.ec.send_command, "crash unaligned") |
| }, |
| { # Step 2, Check shared memory after crash and system jump |
| 'state_checker': [self.shared_mem_checker, self.jump_checker], |
| 'reboot_action': self.sync_and_ec_reboot, |
| }, |
| { # Step 3, dummy step to make step 2 reboot so as to clean EC |
| # state. |
| } |
| )) |
| self.run_faft_sequence() |
