1 # Copyright (c) 2012 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 5 import logging 6 import time 7 8 from autotest_lib.client.common_lib import error 9 from autotest_lib.server.cros.faft.firmware_test import FirmwareTest 10 11 12 class firmware_ECSharedMem(FirmwareTest): 13 """ 14 Servo based EC shared memory test. 15 """ 16 version = 1 17 18 def initialize(self, host, cmdline_args): 19 super(firmware_ECSharedMem, self).initialize(host, cmdline_args) 20 # Only run in normal mode 21 self.switcher.setup_mode('normal') 22 self.ec.send_command("chan 0") 23 24 def cleanup(self): 25 self.ec.send_command("chan 0xffffffff") 26 super(firmware_ECSharedMem, self).cleanup() 27 28 def shared_mem_checker(self): 29 match = self.ec.send_command_get_output("shmem", 30 ["Size:\s+([0-9-]+)\r"])[0] 31 shmem_size = int(match[1]) 32 logging.info("EC shared memory size if %d bytes", shmem_size) 33 if shmem_size <= 0: 34 return False 35 elif shmem_size <= 256: 36 logging.warning("EC shared memory is less than 256 bytes") 37 return True 38 39 def jump_checker(self): 40 self.ec.send_command("sysjump RW") 41 time.sleep(self.faft_config.ec_boot_to_console) 42 return self.shared_mem_checker() 43 44 def run_once(self): 45 if not self.check_ec_capability(): 46 raise error.TestNAError("Nothing needs to be tested on this device") 47 48 logging.info("Check shared memory in normal operation and crash EC.") 49 self.check_state(self.shared_mem_checker) 50 self.switcher.mode_aware_reboot( 51 'custom', lambda:self.ec.send_command('crash unaligned')) 52 53 logging.info("Check shared memory after crash and system jump.") 54 self.check_state([self.shared_mem_checker, self.jump_checker]) 55 self.switcher.mode_aware_reboot('custom', self.sync_and_ec_reboot) 56
