Mbed Host Tests
module_reset_mps2.py
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1"""
2mbed SDK
3Copyright (c) 2011-2015 ARM Limited
4
5Licensed under the Apache License, Version 2.0 (the "License");
6you may not use this file except in compliance with the License.
7You may obtain a copy of the License at
8
9 http://www.apache.org/licenses/LICENSE-2.0
10
11Unless required by applicable law or agreed to in writing, software
12distributed under the License is distributed on an "AS IS" BASIS,
13WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14See the License for the specific language governing permissions and
15limitations under the License.
16
17Author: Przemyslaw Wirkus <Przemyslaw.Wirkus@arm.com>
18"""
19
20import os
21import time
22
23from .host_test_plugins import HostTestPluginBase
24
25# Note: This plugin is not fully functional, needs improvements
26
27class HostTestPluginResetMethod_MPS2(HostTestPluginBase):
28 """! Plugin used to reset ARM_MPS2 platform
29
30 @details Supports:
31 reboot.txt - startup from standby state, reboots when in run mode.
32 """
33
34 # Plugin interface
35 name = 'HostTestPluginResetMethod_MPS2'
36 type = 'ResetMethod'
37 capabilities = ['reboot.txt']
38 required_parameters = ['disk']
39
40 def __init__(self):
41 """ ctor
42 """
43 HostTestPluginBase.__init__(self)
44
45 def touch_file(self, path):
46 """ Touch file and set timestamp to items
47 """
48 with open(path, 'a'):
49 os.utime(path, None)
50
51 def setup(self, *args, **kwargs):
52 """ Prepare / configure plugin to work.
53 This method can receive plugin specific parameters by kwargs and
54 ignore other parameters which may affect other plugins.
55 """
56 return True
57
58 def execute(self, capability, *args, **kwargs):
59 """! Executes capability by name
60
61 @param capability Capability name
62 @param args Additional arguments
63 @param kwargs Additional arguments
64
65 @details Each capability e.g. may directly just call some command line program or execute building pythonic function
66
67 @return Capability call return value
68 """
69 result = False
70 if not kwargs['disk']:
71 self.print_plugin_error("Error: disk not specified")
72 return False
73
74 destination_disk = kwargs.get('disk', None)
75
76 # This optional parameter can be used if TargetID is provided (-t switch)
77 target_id = kwargs.get('target_id', None)
78 pooling_timeout = kwargs.get('polling_timeout', 60)
79 if self.check_parameters(capability, *args, **kwargs) is True:
80
81 if capability == 'reboot.txt':
82 reboot_file_path = os.path.join(destination_disk, capability)
83 reboot_fh = open(reboot_file_path, "w")
84 reboot_fh.close()
85 # Make sure the file is written to the board before continuing
86 if os.name == 'posix':
87 self.run_command('sync -f %s' % reboot_file_path, shell=True)
88 time.sleep(3) # sufficient delay for device to boot up
89 result, destination_disk = self.check_mount_point_ready(destination_disk, target_id=target_id, timeout=pooling_timeout)
90 return result
91
93 """ Returns plugin available in this module
94 """
def run_command(self, cmd, shell=True)
Runs command from command line.
def check_mount_point_ready(self, destination_disk, init_delay=0.2, loop_delay=0.25, target_id=None, timeout=60)
Waits until destination_disk is ready and can be accessed by e.g.
def print_plugin_error(self, text)
Interface helper methods - overload only if you need to have custom behaviour.
def check_parameters(self, capability, *args, **kwargs)
This function should be ran each time we call execute() to check if none of the required parameters i...
def execute(self, capability, *args, **kwargs)
Executes capability by name.