| # 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.client.common_lib import error |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_ECSharedMem(FirmwareTest): |
| """ |
| Servo based EC shared memory test. |
| """ |
| version = 1 |
| |
| def initialize(self, host, cmdline_args): |
| super(firmware_ECSharedMem, self).initialize(host, cmdline_args) |
| # Only run in normal mode |
| self.setup_dev_mode(False) |
| self.ec.send_command("chan 0") |
| |
| def cleanup(self): |
| self.ec.send_command("chan 0xffffffff") |
| super(firmware_ECSharedMem, self).cleanup() |
| |
| 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.faft_config.ec_boot_to_console) |
| return self.shared_mem_checker() |
| |
| def run_once(self): |
| if not self.check_ec_capability(): |
| raise error.TestNAError("Nothing needs to be tested on this device") |
| |
| logging.info("Check shared memory in normal operation and crash EC.") |
| self.check_state(self.shared_mem_checker) |
| self.do_reboot_action((self.ec.send_command, "crash unaligned")) |
| self.wait_for_client(install_deps=True) |
| |
| logging.info("Check shared memory after crash and system jump.") |
| self.check_state([self.shared_mem_checker, self.jump_checker]) |
| self.do_reboot_action(self.sync_and_ec_reboot) |
| self.wait_for_client(install_deps=True) |
