3545b58986
Includes all the latest NimBLE stack changes from idf-v4.0 with few idf-v3.3 specific modifications. - Addition of nimble component as submodule (`nimble-1.1.0-idf-v3.3`), contains IDF v3.3 specific minor changes. - Example applications are identical to idf-v4.0 - Modification in `bt/Kconfig` to accommodate NimBLE as a BT host.
412 lines
13 KiB
Python
412 lines
13 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright 2019 Espressif Systems (Shanghai) PTE LTD
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
|
|
# Creating GATT Application which then becomes available to remote devices.
|
|
|
|
from __future__ import print_function
|
|
import sys
|
|
|
|
try:
|
|
import dbus
|
|
import dbus.service
|
|
except ImportError as e:
|
|
if 'linux' not in sys.platform:
|
|
sys.exit("Error: Only supported on Linux platform")
|
|
print(e)
|
|
print("Install packages `libgirepository1.0-dev gir1.2-gtk-3.0 libcairo2-dev libdbus-1-dev libdbus-glib-1-dev` for resolving the issue")
|
|
print("Run `pip install -r $IDF_PATH/tools/ble/requirements.txt` for resolving the issue")
|
|
raise
|
|
|
|
alert_status_char_obj = None
|
|
|
|
GATT_APP_OBJ = False
|
|
CHAR_READ = False
|
|
CHAR_WRITE = False
|
|
CHAR_SUBSCRIBE = False
|
|
|
|
DBUS_OM_IFACE = 'org.freedesktop.DBus.ObjectManager'
|
|
DBUS_PROP_IFACE = 'org.freedesktop.DBus.Properties'
|
|
GATT_MANAGER_IFACE = 'org.bluez.GattManager1'
|
|
GATT_SERVICE_IFACE = 'org.bluez.GattService1'
|
|
GATT_CHRC_IFACE = 'org.bluez.GattCharacteristic1'
|
|
GATT_DESC_IFACE = 'org.bluez.GattDescriptor1'
|
|
|
|
|
|
class InvalidArgsException(dbus.exceptions.DBusException):
|
|
_dbus_error_name = 'org.freedesktop.DBus.Error.InvalidArgs'
|
|
|
|
|
|
class NotSupportedException(dbus.exceptions.DBusException):
|
|
_dbus_error_name = 'org.bluez.Error.NotSupported'
|
|
|
|
|
|
class Application(dbus.service.Object):
|
|
"""
|
|
org.bluez.GattApplication1 interface implementation
|
|
"""
|
|
|
|
def __init__(self, bus, path):
|
|
self.path = path
|
|
self.services = []
|
|
srv_obj = AlertNotificationService(bus, '0001')
|
|
self.add_service(srv_obj)
|
|
dbus.service.Object.__init__(self, bus, self.path)
|
|
|
|
def __del__(self):
|
|
pass
|
|
|
|
def get_path(self):
|
|
return dbus.ObjectPath(self.path)
|
|
|
|
def add_service(self, service):
|
|
self.services.append(service)
|
|
|
|
@dbus.service.method(DBUS_OM_IFACE, out_signature='a{oa{sa{sv}}}')
|
|
def GetManagedObjects(self):
|
|
global GATT_APP_OBJ
|
|
response = {}
|
|
|
|
for service in self.services:
|
|
response[service.get_path()] = service.get_properties()
|
|
chrcs = service.get_characteristics()
|
|
for chrc in chrcs:
|
|
response[chrc.get_path()] = chrc.get_properties()
|
|
descs = chrc.get_descriptors()
|
|
for desc in descs:
|
|
response[desc.get_path()] = desc.get_properties()
|
|
|
|
GATT_APP_OBJ = True
|
|
return response
|
|
|
|
def Release(self):
|
|
pass
|
|
|
|
|
|
class Service(dbus.service.Object):
|
|
"""
|
|
org.bluez.GattService1 interface implementation
|
|
"""
|
|
PATH_BASE = '/org/bluez/hci0/service'
|
|
|
|
def __init__(self, bus, index, uuid, primary=False):
|
|
self.path = self.PATH_BASE + str(index)
|
|
self.bus = bus
|
|
self.uuid = uuid
|
|
self.primary = primary
|
|
self.characteristics = []
|
|
dbus.service.Object.__init__(self, bus, self.path)
|
|
|
|
def get_properties(self):
|
|
return {
|
|
GATT_SERVICE_IFACE: {
|
|
'UUID': self.uuid,
|
|
'Primary': self.primary,
|
|
'Characteristics': dbus.Array(
|
|
self.get_characteristic_paths(),
|
|
signature='o')
|
|
}
|
|
}
|
|
|
|
def get_path(self):
|
|
return dbus.ObjectPath(self.path)
|
|
|
|
def add_characteristic(self, characteristic):
|
|
self.characteristics.append(characteristic)
|
|
|
|
def get_characteristic_paths(self):
|
|
result = []
|
|
for chrc in self.characteristics:
|
|
result.append(chrc.get_path())
|
|
return result
|
|
|
|
def get_characteristics(self):
|
|
return self.characteristics
|
|
|
|
@dbus.service.method(DBUS_PROP_IFACE,
|
|
in_signature='s',
|
|
out_signature='a{sv}')
|
|
def GetAll(self, interface):
|
|
if interface != GATT_SERVICE_IFACE:
|
|
raise InvalidArgsException()
|
|
return self.get_properties()[GATT_SERVICE_IFACE]
|
|
|
|
|
|
class Characteristic(dbus.service.Object):
|
|
"""
|
|
org.bluez.GattCharacteristic1 interface implementation
|
|
"""
|
|
def __init__(self, bus, index, uuid, flags, service):
|
|
self.path = service.path + '/char' + str(index)
|
|
self.bus = bus
|
|
self.uuid = uuid
|
|
self.service = service
|
|
self.flags = flags
|
|
self.value = [0]
|
|
self.descriptors = []
|
|
dbus.service.Object.__init__(self, bus, self.path)
|
|
|
|
def get_properties(self):
|
|
return {
|
|
GATT_CHRC_IFACE: {
|
|
'Service': self.service.get_path(),
|
|
'UUID': self.uuid,
|
|
'Flags': self.flags,
|
|
'Value': self.value,
|
|
'Descriptors': dbus.Array(self.get_descriptor_paths(), signature='o')
|
|
|
|
}
|
|
}
|
|
|
|
def get_path(self):
|
|
return dbus.ObjectPath(self.path)
|
|
|
|
def add_descriptor(self, descriptor):
|
|
self.descriptors.append(descriptor)
|
|
|
|
def get_descriptor_paths(self):
|
|
result = []
|
|
for desc in self.descriptors:
|
|
result.append(desc.get_path())
|
|
return result
|
|
|
|
def get_descriptors(self):
|
|
return self.descriptors
|
|
|
|
@dbus.service.method(DBUS_PROP_IFACE, in_signature='s', out_signature='a{sv}')
|
|
def GetAll(self, interface):
|
|
if interface != GATT_CHRC_IFACE:
|
|
raise InvalidArgsException()
|
|
|
|
return self.get_properties()[GATT_CHRC_IFACE]
|
|
|
|
@dbus.service.method(GATT_CHRC_IFACE, in_signature='a{sv}', out_signature='ay')
|
|
def ReadValue(self, options):
|
|
print('\nDefault ReadValue called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
@dbus.service.method(GATT_CHRC_IFACE, in_signature='aya{sv}')
|
|
def WriteValue(self, value, options):
|
|
print('\nDefault WriteValue called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
@dbus.service.method(GATT_CHRC_IFACE)
|
|
def StartNotify(self):
|
|
print('Default StartNotify called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
@dbus.service.method(GATT_CHRC_IFACE)
|
|
def StopNotify(self):
|
|
print('Default StopNotify called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
@dbus.service.signal(DBUS_PROP_IFACE,
|
|
signature='sa{sv}as')
|
|
def PropertiesChanged(self, interface, changed, invalidated):
|
|
print("\nProperties Changed")
|
|
|
|
|
|
class Descriptor(dbus.service.Object):
|
|
"""
|
|
org.bluez.GattDescriptor1 interface implementation
|
|
"""
|
|
def __init__(self, bus, index, uuid, flags, characteristic):
|
|
self.path = characteristic.path + '/desc' + str(index)
|
|
self.bus = bus
|
|
self.uuid = uuid
|
|
self.flags = flags
|
|
self.chrc = characteristic
|
|
dbus.service.Object.__init__(self, bus, self.path)
|
|
|
|
def get_properties(self):
|
|
return {
|
|
GATT_DESC_IFACE: {
|
|
'Characteristic': self.chrc.get_path(),
|
|
'UUID': self.uuid,
|
|
'Flags': self.flags,
|
|
}
|
|
}
|
|
|
|
def get_path(self):
|
|
return dbus.ObjectPath(self.path)
|
|
|
|
@dbus.service.method(DBUS_PROP_IFACE,
|
|
in_signature='s',
|
|
out_signature='a{sv}')
|
|
def GetAll(self, interface):
|
|
if interface != GATT_DESC_IFACE:
|
|
raise InvalidArgsException()
|
|
|
|
return self.get_properties()[GATT_DESC_IFACE]
|
|
|
|
@dbus.service.method(GATT_DESC_IFACE, in_signature='a{sv}', out_signature='ay')
|
|
def ReadValue(self, options):
|
|
print('Default ReadValue called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
@dbus.service.method(GATT_DESC_IFACE, in_signature='aya{sv}')
|
|
def WriteValue(self, value, options):
|
|
print('Default WriteValue called, returning error')
|
|
raise NotSupportedException()
|
|
|
|
|
|
class AlertNotificationService(Service):
|
|
TEST_SVC_UUID = '00001811-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, bus, index):
|
|
global alert_status_char_obj
|
|
Service.__init__(self, bus, index, self.TEST_SVC_UUID, primary=True)
|
|
self.add_characteristic(SupportedNewAlertCategoryCharacteristic(bus, '0001', self))
|
|
self.add_characteristic(AlertNotificationControlPointCharacteristic(bus, '0002', self))
|
|
alert_status_char_obj = UnreadAlertStatusCharacteristic(bus, '0003', self)
|
|
self.add_characteristic(alert_status_char_obj)
|
|
|
|
|
|
class SupportedNewAlertCategoryCharacteristic(Characteristic):
|
|
SUPPORT_NEW_ALERT_UUID = '00002A47-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, bus, index, service):
|
|
Characteristic.__init__(
|
|
self, bus, index,
|
|
self.SUPPORT_NEW_ALERT_UUID,
|
|
['read'],
|
|
service)
|
|
|
|
self.value = [dbus.Byte(2)]
|
|
|
|
def ReadValue(self, options):
|
|
global CHAR_READ
|
|
CHAR_READ = True
|
|
val_list = []
|
|
for val in self.value:
|
|
val_list.append(dbus.Byte(val))
|
|
print("Read Request received\n", "\tSupportedNewAlertCategoryCharacteristic")
|
|
print("\tValue:", "\t", val_list)
|
|
return val_list
|
|
|
|
|
|
class AlertNotificationControlPointCharacteristic(Characteristic):
|
|
ALERT_NOTIF_UUID = '00002A44-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, bus, index, service):
|
|
Characteristic.__init__(
|
|
self, bus, index,
|
|
self.ALERT_NOTIF_UUID,
|
|
['read','write'],
|
|
service)
|
|
|
|
self.value = [dbus.Byte(0)]
|
|
|
|
def ReadValue(self, options):
|
|
val_list = []
|
|
for val in self.value:
|
|
val_list.append(dbus.Byte(val))
|
|
print("Read Request received\n", "\tAlertNotificationControlPointCharacteristic")
|
|
print("\tValue:", "\t", val_list)
|
|
return val_list
|
|
|
|
def WriteValue(self, value, options):
|
|
global CHAR_WRITE
|
|
CHAR_WRITE = True
|
|
print("Write Request received\n", "\tAlertNotificationControlPointCharacteristic")
|
|
print("\tCurrent value:", "\t", self.value)
|
|
val_list = []
|
|
for val in value:
|
|
val_list.append(val)
|
|
self.value = val_list
|
|
# Check if new value is written
|
|
print("\tNew value:", "\t", self.value)
|
|
if not self.value == value:
|
|
print("Failed: Write Request\n\tNew value not written\tCurrent value:", self.value)
|
|
|
|
|
|
class UnreadAlertStatusCharacteristic(Characteristic):
|
|
UNREAD_ALERT_STATUS_UUID = '00002A45-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, bus, index, service):
|
|
Characteristic.__init__(
|
|
self, bus, index,
|
|
self.UNREAD_ALERT_STATUS_UUID,
|
|
['read', 'write', 'notify'],
|
|
service)
|
|
self.value = [dbus.Byte(0)]
|
|
self.cccd_obj = ClientCharacteristicConfigurationDescriptor(bus, '0001', self)
|
|
self.add_descriptor(self.cccd_obj)
|
|
self.notifying = False
|
|
|
|
def StartNotify(self):
|
|
global CHAR_SUBSCRIBE
|
|
CHAR_SUBSCRIBE = True
|
|
|
|
if self.notifying:
|
|
print('\nAlready notifying, nothing to do')
|
|
return
|
|
self.notifying = True
|
|
print("\nNotify Started")
|
|
self.cccd_obj.WriteValue([dbus.Byte(1), dbus.Byte(0)])
|
|
self.cccd_obj.ReadValue()
|
|
|
|
def StopNotify(self):
|
|
if not self.notifying:
|
|
print('\nNot notifying, nothing to do')
|
|
return
|
|
self.notifying = False
|
|
print("\nNotify Stopped")
|
|
|
|
def ReadValue(self, options):
|
|
print("Read Request received\n", "\tUnreadAlertStatusCharacteristic")
|
|
val_list = []
|
|
for val in self.value:
|
|
val_list.append(dbus.Byte(val))
|
|
print("\tValue:", "\t", val_list)
|
|
return val_list
|
|
|
|
def WriteValue(self, value, options):
|
|
print("Write Request received\n", "\tUnreadAlertStatusCharacteristic")
|
|
val_list = []
|
|
for val in value:
|
|
val_list.append(val)
|
|
self.value = val_list
|
|
# Check if new value is written
|
|
print("\tNew value:", "\t", self.value)
|
|
if not self.value == value:
|
|
print("Failed: Write Request\n\tNew value not written\tCurrent value:", self.value)
|
|
|
|
|
|
class ClientCharacteristicConfigurationDescriptor(Descriptor):
|
|
CCCD_UUID = '00002902-0000-1000-8000-00805f9b34fb'
|
|
|
|
def __init__(self, bus, index, characteristic):
|
|
self.value = [dbus.Byte(0)]
|
|
Descriptor.__init__(
|
|
self, bus, index,
|
|
self.CCCD_UUID,
|
|
['read', 'write'],
|
|
characteristic)
|
|
|
|
def ReadValue(self):
|
|
print("\tValue on read:", "\t", self.value)
|
|
return self.value
|
|
|
|
def WriteValue(self, value):
|
|
val_list = []
|
|
for val in value:
|
|
val_list.append(val)
|
|
self.value = val_list
|
|
# Check if new value is written
|
|
print("New value on write:", "\t", self.value)
|
|
if not self.value == value:
|
|
print("Failed: Write Request\n\tNew value not written\tCurrent value:", self.value)
|