834 lines
30 KiB
Python
834 lines
30 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2019 Espressif Systems (Shanghai) PTE LTD
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# DBus-Bluez BLE library
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from __future__ import print_function
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import sys
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import time
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import traceback
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try:
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from future.moves.itertools import zip_longest
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import dbus
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import dbus.mainloop.glib
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from gi.repository import GLib
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except ImportError as e:
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if 'linux' not in sys.platform:
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sys.exit("Error: Only supported on Linux platform")
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print(e)
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print("Install packages `libgirepository1.0-dev gir1.2-gtk-3.0 libcairo2-dev libdbus-1-dev libdbus-glib-1-dev` for resolving the issue")
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print("Run `pip install -r $IDF_PATH/tools/ble/requirements.txt` for resolving the issue")
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raise
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import lib_gatt
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import lib_gap
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srv_added_old_cnt = 0
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srv_added_new_cnt = 0
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verify_signal_check = 0
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blecent_retry_check_cnt = 0
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verify_service_cnt = 0
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verify_readchars_cnt = 0
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blecent_adv_uuid = '1811'
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gatt_app_obj_check = False
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gatt_app_reg_check = False
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adv_data_check = False
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adv_reg_check = False
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read_req_check = False
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write_req_check = False
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subscribe_req_check = False
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ble_hr_chrc = False
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DISCOVERY_START = False
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SIGNAL_CAUGHT = False
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TEST_CHECKS_PASS = False
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ADV_STOP = False
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SERVICES_RESOLVED = False
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SERVICE_UUID_FOUND = False
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BLUEZ_SERVICE_NAME = 'org.bluez'
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DBUS_OM_IFACE = 'org.freedesktop.DBus.ObjectManager'
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DBUS_PROP_IFACE = 'org.freedesktop.DBus.Properties'
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ADAPTER_IFACE = 'org.bluez.Adapter1'
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DEVICE_IFACE = 'org.bluez.Device1'
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GATT_MANAGER_IFACE = 'org.bluez.GattManager1'
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LE_ADVERTISING_MANAGER_IFACE = 'org.bluez.LEAdvertisingManager1'
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GATT_SERVICE_IFACE = 'org.bluez.GattService1'
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GATT_CHRC_IFACE = 'org.bluez.GattCharacteristic1'
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ADAPTER_ON = False
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DEVICE_CONNECTED = False
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GATT_APP_REGISTERED = False
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ADV_REGISTERED = False
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ADV_ACTIVE_INSTANCE = False
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CHRC_VALUE_CNT = False
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# Set up the main loop.
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dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
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dbus.mainloop.glib.threads_init()
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# Set up the event main loop.
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event_loop = GLib.MainLoop()
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def verify_signal_is_caught():
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global verify_signal_check
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verify_signal_check += 1
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if (not SIGNAL_CAUGHT and verify_signal_check == 15) or (SIGNAL_CAUGHT):
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if event_loop.is_running():
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event_loop.quit()
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return False # polling for checks will stop
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return True # polling will continue
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def set_props_status(props):
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"""
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Set Adapter status if it is powered on or off
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"""
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global ADAPTER_ON, SERVICES_RESOLVED, GATT_OBJ_REMOVED, GATT_APP_REGISTERED, \
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ADV_REGISTERED, ADV_ACTIVE_INSTANCE, DEVICE_CONNECTED, CHRC_VALUE, CHRC_VALUE_CNT, \
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SIGNAL_CAUGHT
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is_service_uuid = False
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# Signal caught for change in Adapter Powered property
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if 'Powered' in props:
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if props['Powered'] == 1:
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SIGNAL_CAUGHT = True
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ADAPTER_ON = True
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else:
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SIGNAL_CAUGHT = True
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ADAPTER_ON = False
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if 'ServicesResolved' in props:
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if props['ServicesResolved'] == 1:
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SIGNAL_CAUGHT = True
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SERVICES_RESOLVED = True
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else:
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SIGNAL_CAUGHT = True
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SERVICES_RESOLVED = False
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if 'UUIDs' in props:
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# Signal caught for add/remove GATT data having service uuid
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for uuid in props['UUIDs']:
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if blecent_adv_uuid in uuid:
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is_service_uuid = True
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if not is_service_uuid:
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# Signal caught for removing GATT data having service uuid
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# and for unregistering GATT application
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GATT_APP_REGISTERED = False
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lib_gatt.GATT_APP_OBJ = False
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if 'ActiveInstances' in props:
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# Signal caught for Advertising - add/remove Instances property
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if props['ActiveInstances'] == 1:
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ADV_ACTIVE_INSTANCE = True
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elif props['ActiveInstances'] == 0:
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ADV_ACTIVE_INSTANCE = False
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ADV_REGISTERED = False
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lib_gap.ADV_OBJ = False
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if 'Connected' in props:
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# Signal caught for device connect/disconnect
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if props['Connected'] == 1:
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SIGNAL_CAUGHT = True
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DEVICE_CONNECTED = True
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else:
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SIGNAL_CAUGHT = True
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DEVICE_CONNECTED = False
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if 'Value' in props:
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# Signal caught for change in chars value
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if ble_hr_chrc:
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CHRC_VALUE_CNT += 1
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print(props['Value'])
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if CHRC_VALUE_CNT == 10:
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SIGNAL_CAUGHT = True
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return False
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return False
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def props_change_handler(iface, changed_props, invalidated):
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"""
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PropertiesChanged Signal handler.
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Catch and print information about PropertiesChanged signal.
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"""
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if iface == ADAPTER_IFACE:
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set_props_status(changed_props)
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if iface == LE_ADVERTISING_MANAGER_IFACE:
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set_props_status(changed_props)
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if iface == DEVICE_IFACE:
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set_props_status(changed_props)
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if iface == GATT_CHRC_IFACE:
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set_props_status(changed_props)
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class BLE_Bluez_Client:
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def __init__(self, iface, devname=None, devaddr=None):
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self.bus = None
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self.device = None
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self.devname = devname
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self.devaddr = devaddr
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self.iface = iface
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self.ble_objs = None
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self.props_iface_obj = None
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self.adapter_path = []
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self.adapter = None
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self.services = []
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self.srv_uuid = []
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self.chars = {}
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self.char_uuid = []
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try:
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self.bus = dbus.SystemBus()
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om_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, "/"), DBUS_OM_IFACE)
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self.ble_objs = om_iface_obj.GetManagedObjects()
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except Exception as e:
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print(e)
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def __del__(self):
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try:
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print("Test Exit")
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except Exception as e:
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print(e)
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sys.exit(1)
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def set_adapter(self):
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'''
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Discover Bluetooth Adapter
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Power On Bluetooth Adapter
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'''
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global verify_signal_check, SIGNAL_CAUGHT, ADAPTER_ON
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verify_signal_check = 0
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ADAPTER_ON = False
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try:
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print("discovering adapter...")
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for path, interfaces in self.ble_objs.items():
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adapter = interfaces.get(ADAPTER_IFACE)
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if adapter is not None:
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if path.endswith(self.iface):
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self.adapter = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, path), ADAPTER_IFACE)
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# Create Properties Interface object only after adapter is found
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self.props_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, path), DBUS_PROP_IFACE)
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self.adapter_path = [path, interfaces]
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# Check adapter status - power on/off
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set_props_status(interfaces[ADAPTER_IFACE])
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break
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if self.adapter is None:
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raise Exception("Bluetooth adapter not found")
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if self.props_iface_obj is None:
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raise Exception("Properties interface not found")
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print("bluetooth adapter discovered")
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# Check if adapter is already powered on
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if ADAPTER_ON:
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print("Adapter already powered on")
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return True
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# Power On Adapter
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print("powering on adapter...")
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self.props_iface_obj.connect_to_signal('PropertiesChanged', props_change_handler)
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self.props_iface_obj.Set(ADAPTER_IFACE, "Powered", dbus.Boolean(1))
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SIGNAL_CAUGHT = False
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GLib.timeout_add_seconds(5, verify_signal_is_caught)
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event_loop.run()
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if ADAPTER_ON:
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print("bluetooth adapter powered on")
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return True
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else:
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raise Exception("Failure: bluetooth adapter not powered on")
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except Exception:
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print(traceback.format_exc())
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return False
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def connect(self):
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'''
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Connect to the device discovered
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Retry 10 times to discover and connect to device
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'''
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global DISCOVERY_START, SIGNAL_CAUGHT, DEVICE_CONNECTED, verify_signal_check
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device_found = False
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DEVICE_CONNECTED = False
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try:
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self.adapter.StartDiscovery()
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print("\nStarted Discovery")
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DISCOVERY_START = True
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for retry_cnt in range(10,0,-1):
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verify_signal_check = 0
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try:
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if self.device is None:
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print("\nConnecting to device...")
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# Wait for device to be discovered
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time.sleep(5)
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device_found = self.get_device()
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if device_found:
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self.device.Connect(dbus_interface=DEVICE_IFACE)
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time.sleep(15)
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SIGNAL_CAUGHT = False
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GLib.timeout_add_seconds(5, verify_signal_is_caught)
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event_loop.run()
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if DEVICE_CONNECTED:
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print("\nConnected to device")
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return True
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else:
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raise Exception
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except Exception as e:
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print(e)
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print("\nRetries left", retry_cnt - 1)
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continue
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# Device not found
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return False
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except Exception:
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print(traceback.format_exc())
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self.device = None
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return False
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def get_device(self):
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'''
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Discover device based on device name
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and device address and connect
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'''
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dev_path = None
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om_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, "/"), DBUS_OM_IFACE)
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self.ble_objs = om_iface_obj.GetManagedObjects()
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for path, interfaces in self.ble_objs.items():
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if DEVICE_IFACE not in interfaces.keys():
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continue
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device_addr_iface = (path.replace('_', ':')).lower()
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dev_addr = self.devaddr.lower()
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if dev_addr in device_addr_iface and \
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interfaces[DEVICE_IFACE].get("Name") == self.devname:
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dev_path = path
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break
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if dev_path is None:
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raise Exception("\nBLE device not found")
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device_props_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, dev_path), DBUS_PROP_IFACE)
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device_props_iface_obj.connect_to_signal('PropertiesChanged', props_change_handler)
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self.device = self.bus.get_object(BLUEZ_SERVICE_NAME, dev_path)
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return True
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def srvc_iface_added_handler(self, path, interfaces):
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'''
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Add services found as lib_ble_client obj
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'''
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if self.device and path.startswith(self.device.object_path):
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if GATT_SERVICE_IFACE in interfaces.keys():
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service = self.bus.get_object(BLUEZ_SERVICE_NAME, path)
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uuid = service.Get(GATT_SERVICE_IFACE, 'UUID', dbus_interface=DBUS_PROP_IFACE)
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if uuid not in self.srv_uuid:
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self.srv_uuid.append(uuid)
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if path not in self.services:
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self.services.append(path)
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def verify_service_uuid_found(self, service_uuid):
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'''
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Verify service uuid found
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'''
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global SERVICE_UUID_FOUND
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srv_uuid_found = [uuid for uuid in self.srv_uuid if service_uuid in uuid]
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if srv_uuid_found:
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SERVICE_UUID_FOUND = True
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def get_services(self, service_uuid=None):
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'''
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Retrieve Services found in the device connected
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'''
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global SIGNAL_CAUGHT, SERVICE_UUID_FOUND, SERVICES_RESOLVED, verify_signal_check
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verify_signal_check = 0
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SERVICE_UUID_FOUND = False
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SERVICES_RESOLVED = False
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SIGNAL_CAUGHT = False
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try:
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om_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, "/"), DBUS_OM_IFACE)
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self.ble_objs = om_iface_obj.GetManagedObjects()
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for path, interfaces in self.ble_objs.items():
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self.srvc_iface_added_handler(path, interfaces)
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# If services not found, then they may not have been added yet on dbus
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if not self.services:
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GLib.timeout_add_seconds(5, verify_signal_is_caught)
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om_iface_obj.connect_to_signal('InterfacesAdded', self.srvc_iface_added_handler)
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event_loop.run()
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if not SERVICES_RESOLVED:
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raise Exception("Services not found...")
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if service_uuid:
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self.verify_service_uuid_found(service_uuid)
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if not SERVICE_UUID_FOUND:
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raise Exception("Service with uuid: %s not found..." % service_uuid)
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# Services found
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return self.srv_uuid
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except Exception:
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print(traceback.format_exc())
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return False
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def chrc_iface_added_handler(self, path, interfaces):
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'''
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Add services found as lib_ble_client obj
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'''
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global chrc, chrc_discovered, SIGNAL_CAUGHT
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chrc_val = None
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if self.device and path.startswith(self.device.object_path):
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if GATT_CHRC_IFACE in interfaces.keys():
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chrc = self.bus.get_object(BLUEZ_SERVICE_NAME, path)
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chrc_props = chrc.GetAll(GATT_CHRC_IFACE,
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dbus_interface=DBUS_PROP_IFACE)
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chrc_flags = chrc_props['Flags']
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if 'read' in chrc_flags:
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chrc_val = chrc.ReadValue({}, dbus_interface=GATT_CHRC_IFACE)
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uuid = chrc_props['UUID']
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self.chars[path] = chrc_val, chrc_flags, uuid
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SIGNAL_CAUGHT = True
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def read_chars(self):
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'''
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Read characteristics found in the device connected
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'''
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global iface_added, chrc_discovered, SIGNAL_CAUGHT, verify_signal_check
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verify_signal_check = 0
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chrc_discovered = False
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iface_added = False
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SIGNAL_CAUGHT = False
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try:
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om_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, "/"), DBUS_OM_IFACE)
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self.ble_objs = om_iface_obj.GetManagedObjects()
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for path, interfaces in self.ble_objs.items():
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self.chrc_iface_added_handler(path, interfaces)
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# If chars not found, then they have not been added yet to interface
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time.sleep(15)
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if not self.chars:
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iface_added = True
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GLib.timeout_add_seconds(5, verify_signal_is_caught)
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om_iface_obj.connect_to_signal('InterfacesAdded', self.chars_iface_added_handler)
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event_loop.run()
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return self.chars
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except Exception:
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print(traceback.format_exc())
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return False
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def write_chars(self, write_val):
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'''
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Write characteristics to the device connected
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'''
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chrc = None
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chrc_val = None
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char_write_props = False
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try:
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for path, props in self.chars.items():
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if 'write' in props[1]: # check permission
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char_write_props = True
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chrc = self.bus.get_object(BLUEZ_SERVICE_NAME, path)
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chrc.WriteValue(write_val,{},dbus_interface=GATT_CHRC_IFACE)
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if 'read' in props[1]:
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chrc_val = chrc.ReadValue({}, dbus_interface=GATT_CHRC_IFACE)
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else:
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print("Warning: Cannot read value. Characteristic does not have read permission.")
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if not (ord(write_val) == int(chrc_val[0])):
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print("\nWrite Failed")
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return False
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self.chars[path] = chrc_val, props[1], props[2] # update value
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if not char_write_props:
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raise Exception("Failure: Cannot perform write operation. Characteristic does not have write permission.")
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return self.chars
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except Exception:
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print(traceback.format_exc())
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return False
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def hr_update_simulation(self, hr_srv_uuid, hr_char_uuid):
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'''
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Start Notifications
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Retrieve updated value
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Stop Notifications
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'''
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global ble_hr_chrc, verify_signal_check, SIGNAL_CAUGHT, CHRC_VALUE_CNT
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srv_path = None
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chrc = None
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uuid = None
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chrc_path = None
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chars_ret = None
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ble_hr_chrc = True
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CHRC_VALUE_CNT = 0
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try:
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# Get HR Measurement characteristic
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services = list(zip_longest(self.srv_uuid, self.services))
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for uuid, path in services:
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if hr_srv_uuid in uuid:
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srv_path = path
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break
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if srv_path is None:
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raise Exception("Failure: HR UUID:", hr_srv_uuid, "not found")
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chars_ret = self.read_chars()
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for path, props in chars_ret.items():
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|
if path.startswith(srv_path):
|
|
chrc = self.bus.get_object(BLUEZ_SERVICE_NAME, path)
|
|
chrc_path = path
|
|
if hr_char_uuid in props[2]: # uuid
|
|
break
|
|
if chrc is None:
|
|
raise Exception("Failure: Characteristics for service: ", srv_path, "not found")
|
|
|
|
# Subscribe to notifications
|
|
print("\nSubscribe to notifications: On")
|
|
chrc.StartNotify(dbus_interface=GATT_CHRC_IFACE)
|
|
|
|
chrc_props_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, chrc_path), DBUS_PROP_IFACE)
|
|
chrc_props_iface_obj.connect_to_signal('PropertiesChanged', props_change_handler)
|
|
|
|
SIGNAL_CAUGHT = False
|
|
verify_signal_check = 0
|
|
GLib.timeout_add_seconds(5, verify_signal_is_caught)
|
|
event_loop.run()
|
|
chrc.StopNotify(dbus_interface=GATT_CHRC_IFACE)
|
|
time.sleep(2)
|
|
print("\nSubscribe to notifications: Off")
|
|
|
|
ble_hr_chrc = False
|
|
return True
|
|
|
|
except Exception:
|
|
print(traceback.format_exc())
|
|
return False
|
|
|
|
def create_gatt_app(self):
|
|
'''
|
|
Create GATT data
|
|
Register GATT Application
|
|
'''
|
|
global gatt_app_obj, gatt_manager_iface_obj, GATT_APP_REGISTERED
|
|
|
|
gatt_app_obj = None
|
|
gatt_manager_iface_obj = None
|
|
GATT_APP_REGISTERED = False
|
|
lib_gatt.GATT_APP_OBJ = False
|
|
|
|
try:
|
|
gatt_app_obj = lib_gatt.Application(self.bus, self.adapter_path[0])
|
|
gatt_manager_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME,self.adapter_path[0]), GATT_MANAGER_IFACE)
|
|
|
|
gatt_manager_iface_obj.RegisterApplication(gatt_app_obj, {},
|
|
reply_handler=self.gatt_app_handler,
|
|
error_handler=self.gatt_app_error_handler)
|
|
return True
|
|
except Exception:
|
|
print(traceback.format_exc())
|
|
return False
|
|
|
|
def gatt_app_handler(self):
|
|
'''
|
|
GATT Application Register success handler
|
|
'''
|
|
global GATT_APP_REGISTERED
|
|
GATT_APP_REGISTERED = True
|
|
|
|
def gatt_app_error_handler(self, error):
|
|
'''
|
|
GATT Application Register error handler
|
|
'''
|
|
global GATT_APP_REGISTERED
|
|
GATT_APP_REGISTERED = False
|
|
|
|
def start_advertising(self, adv_host_name, adv_iface_index, adv_type, adv_uuid):
|
|
'''
|
|
Create Advertising data
|
|
Register Advertisement
|
|
Start Advertising
|
|
'''
|
|
global le_adv_obj, le_adv_manager_iface_obj, ADV_ACTIVE_INSTANCE, ADV_REGISTERED
|
|
|
|
le_adv_obj = None
|
|
le_adv_manager_iface_obj = None
|
|
le_adv_iface_path = None
|
|
ADV_ACTIVE_INSTANCE = False
|
|
ADV_REGISTERED = False
|
|
lib_gap.ADV_OBJ = False
|
|
|
|
try:
|
|
print("Advertising started")
|
|
gatt_app_ret = self.create_gatt_app()
|
|
|
|
if not gatt_app_ret:
|
|
raise Exception
|
|
|
|
for path,interface in self.ble_objs.items():
|
|
if LE_ADVERTISING_MANAGER_IFACE in interface:
|
|
le_adv_iface_path = path
|
|
|
|
if le_adv_iface_path is None:
|
|
raise Exception('\n Cannot start advertising. LEAdvertisingManager1 Interface not found')
|
|
|
|
le_adv_obj = lib_gap.Advertisement(self.bus, adv_iface_index, adv_type, adv_uuid, adv_host_name)
|
|
le_adv_manager_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, le_adv_iface_path), LE_ADVERTISING_MANAGER_IFACE)
|
|
|
|
le_adv_manager_iface_obj.RegisterAdvertisement(le_adv_obj.get_path(), {},
|
|
reply_handler=self.adv_handler,
|
|
error_handler=self.adv_error_handler)
|
|
|
|
GLib.timeout_add_seconds(2, self.verify_blecent)
|
|
event_loop.run()
|
|
|
|
if TEST_CHECKS_PASS:
|
|
return True
|
|
else:
|
|
raise Exception
|
|
|
|
except Exception:
|
|
print(traceback.format_exc())
|
|
return False
|
|
|
|
def adv_handler(self):
|
|
'''
|
|
Advertisement Register success handler
|
|
'''
|
|
global ADV_REGISTERED
|
|
ADV_REGISTERED = True
|
|
|
|
def adv_error_handler(self, error):
|
|
'''
|
|
Advertisement Register error handler
|
|
'''
|
|
global ADV_REGISTERED
|
|
ADV_REGISTERED = False
|
|
|
|
def verify_blecent(self):
|
|
"""
|
|
Verify blecent test commands are successful
|
|
"""
|
|
global blecent_retry_check_cnt, gatt_app_obj_check, gatt_app_reg_check,\
|
|
adv_data_check, adv_reg_check, read_req_check, write_req_check,\
|
|
subscribe_req_check, TEST_CHECKS_PASS
|
|
|
|
# Get device when connected
|
|
if not self.device:
|
|
om_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, "/"), DBUS_OM_IFACE)
|
|
self.ble_objs = om_iface_obj.GetManagedObjects()
|
|
|
|
for path, interfaces in self.ble_objs.items():
|
|
if DEVICE_IFACE not in interfaces.keys():
|
|
continue
|
|
device_props_iface_obj = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, path), DBUS_PROP_IFACE)
|
|
device_props_iface_obj.connect_to_signal('PropertiesChanged', props_change_handler)
|
|
self.device = self.bus.get_object(BLUEZ_SERVICE_NAME, path)
|
|
|
|
# Check for failures after 10 retries
|
|
if blecent_retry_check_cnt == 10:
|
|
# check for failures
|
|
if not gatt_app_obj_check:
|
|
print("Failure: GATT Data could not be created")
|
|
if not gatt_app_reg_check:
|
|
print("Failure: GATT Application could not be registered")
|
|
if not adv_data_check:
|
|
print("Failure: Advertising data could not be created")
|
|
if not adv_reg_check:
|
|
print("Failure: Advertisement could not be registered")
|
|
if not read_req_check:
|
|
print("Failure: Read Request not received")
|
|
if not write_req_check:
|
|
print("Failure: Write Request not received")
|
|
if not subscribe_req_check:
|
|
print("Failure: Subscribe Request not received")
|
|
|
|
# Blecent Test failed
|
|
TEST_CHECKS_PASS = False
|
|
if subscribe_req_check:
|
|
lib_gatt.alert_status_char_obj.StopNotify()
|
|
else:
|
|
# Check for success
|
|
if not gatt_app_obj_check and lib_gatt.GATT_APP_OBJ:
|
|
print("GATT Data created")
|
|
gatt_app_obj_check = True
|
|
if not gatt_app_reg_check and GATT_APP_REGISTERED:
|
|
print("GATT Application registered")
|
|
gatt_app_reg_check = True
|
|
if not adv_data_check and lib_gap.ADV_OBJ:
|
|
print("Advertising data created")
|
|
adv_data_check = True
|
|
if not adv_reg_check and ADV_REGISTERED and ADV_ACTIVE_INSTANCE:
|
|
print("Advertisement registered")
|
|
adv_reg_check = True
|
|
if not read_req_check and lib_gatt.CHAR_READ:
|
|
read_req_check = True
|
|
if not write_req_check and lib_gatt.CHAR_WRITE:
|
|
write_req_check = True
|
|
if not subscribe_req_check and lib_gatt.CHAR_SUBSCRIBE:
|
|
subscribe_req_check = True
|
|
|
|
if read_req_check and write_req_check and subscribe_req_check:
|
|
# all checks passed
|
|
# Blecent Test passed
|
|
TEST_CHECKS_PASS = True
|
|
lib_gatt.alert_status_char_obj.StopNotify()
|
|
|
|
if (blecent_retry_check_cnt == 10 or TEST_CHECKS_PASS):
|
|
if event_loop.is_running():
|
|
event_loop.quit()
|
|
return False # polling for checks will stop
|
|
|
|
# Increment retry count
|
|
blecent_retry_check_cnt += 1
|
|
|
|
# Default return True - polling for checks will continue
|
|
return True
|
|
|
|
def verify_blecent_disconnect(self):
|
|
"""
|
|
Verify cleanup is successful
|
|
"""
|
|
global blecent_retry_check_cnt, gatt_app_obj_check, gatt_app_reg_check,\
|
|
adv_data_check, adv_reg_check, ADV_STOP
|
|
|
|
if blecent_retry_check_cnt == 0:
|
|
gatt_app_obj_check = False
|
|
gatt_app_reg_check = False
|
|
adv_data_check = False
|
|
adv_reg_check = False
|
|
|
|
# Check for failures after 10 retries
|
|
if blecent_retry_check_cnt == 10:
|
|
# check for failures
|
|
if not gatt_app_obj_check:
|
|
print("Warning: GATT Data could not be removed")
|
|
if not gatt_app_reg_check:
|
|
print("Warning: GATT Application could not be unregistered")
|
|
if not adv_data_check:
|
|
print("Warning: Advertising data could not be removed")
|
|
if not adv_reg_check:
|
|
print("Warning: Advertisement could not be unregistered")
|
|
|
|
# Blecent Test failed
|
|
ADV_STOP = False
|
|
else:
|
|
# Check for success
|
|
if not gatt_app_obj_check and not lib_gatt.GATT_APP_OBJ:
|
|
print("GATT Data removed")
|
|
gatt_app_obj_check = True
|
|
if not gatt_app_reg_check and not GATT_APP_REGISTERED:
|
|
print("GATT Application unregistered")
|
|
gatt_app_reg_check = True
|
|
if not adv_data_check and not adv_reg_check and not (ADV_REGISTERED or ADV_ACTIVE_INSTANCE or lib_gap.ADV_OBJ):
|
|
print("Advertising data removed")
|
|
print("Advertisement unregistered")
|
|
adv_data_check = True
|
|
adv_reg_check = True
|
|
# all checks passed
|
|
ADV_STOP = True
|
|
|
|
if (blecent_retry_check_cnt == 10 or ADV_STOP):
|
|
if event_loop.is_running():
|
|
event_loop.quit()
|
|
return False # polling for checks will stop
|
|
|
|
# Increment retry count
|
|
blecent_retry_check_cnt += 1
|
|
|
|
# Default return True - polling for checks will continue
|
|
return True
|
|
|
|
def disconnect(self):
|
|
'''
|
|
Before application exits:
|
|
Advertisement is unregistered
|
|
Advertisement object created is removed from dbus
|
|
GATT Application is unregistered
|
|
GATT Application object created is removed from dbus
|
|
Disconnect device if connected
|
|
Adapter is powered off
|
|
'''
|
|
try:
|
|
global blecent_retry_check_cnt, DISCOVERY_START, verify_signal_check, SIGNAL_CAUGHT
|
|
blecent_retry_check_cnt = 0
|
|
verify_signal_check = 0
|
|
|
|
print("\nexiting from test...")
|
|
|
|
self.props_iface_obj.connect_to_signal('PropertiesChanged', props_change_handler)
|
|
|
|
if ADV_REGISTERED:
|
|
# Unregister Advertisement
|
|
le_adv_manager_iface_obj.UnregisterAdvertisement(le_adv_obj.get_path())
|
|
|
|
# Remove Advertising data
|
|
dbus.service.Object.remove_from_connection(le_adv_obj)
|
|
|
|
if GATT_APP_REGISTERED:
|
|
# Unregister GATT Application
|
|
gatt_manager_iface_obj.UnregisterApplication(gatt_app_obj.get_path())
|
|
|
|
# Remove GATT data
|
|
dbus.service.Object.remove_from_connection(gatt_app_obj)
|
|
|
|
GLib.timeout_add_seconds(5, self.verify_blecent_disconnect)
|
|
event_loop.run()
|
|
|
|
if ADV_STOP:
|
|
print("Stop Advertising status: ", ADV_STOP)
|
|
else:
|
|
print("Warning: Stop Advertising status: ", ADV_STOP)
|
|
|
|
# Disconnect device
|
|
if self.device:
|
|
print("disconnecting device...")
|
|
self.device.Disconnect(dbus_interface=DEVICE_IFACE)
|
|
if self.adapter:
|
|
self.adapter.RemoveDevice(self.device)
|
|
self.device = None
|
|
if DISCOVERY_START:
|
|
self.adapter.StopDiscovery()
|
|
DISCOVERY_START = False
|
|
time.sleep(15)
|
|
|
|
SIGNAL_CAUGHT = False
|
|
GLib.timeout_add_seconds(5, verify_signal_is_caught)
|
|
event_loop.run()
|
|
|
|
if not DEVICE_CONNECTED:
|
|
print("device disconnected")
|
|
else:
|
|
print("Warning: device could not be disconnected")
|
|
|
|
except Exception:
|
|
print(traceback.format_exc())
|
|
return False
|