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Reticulum/RNS/Interfaces/Android/RNodeInterface.py

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# MIT License
#
# Copyright (c) 2016-2022 Mark Qvist / unsigned.io
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from RNS.Interfaces.Interface import Interface
from time import sleep
import sys
import threading
import time
import math
import RNS
try:
from able import BluetoothDispatcher, GATT_SUCCESS
except Exception as e:
GATT_SUCCESS = 0x00
class BluetoothDispatcher():
def __init__(**kwargs):
RNS.log("Attempt to initialise BLE connectivity, but Android BLE support library is unavailable", RNS.LOG_ERROR)
raise OSError("No BLE support available")
class KISS():
FEND = 0xC0
FESC = 0xDB
TFEND = 0xDC
TFESC = 0xDD
CMD_UNKNOWN = 0xFE
CMD_DATA = 0x00
CMD_FREQUENCY = 0x01
CMD_BANDWIDTH = 0x02
CMD_TXPOWER = 0x03
CMD_SF = 0x04
CMD_CR = 0x05
CMD_RADIO_STATE = 0x06
CMD_RADIO_LOCK = 0x07
CMD_ST_ALOCK = 0x0B
CMD_LT_ALOCK = 0x0C
CMD_DETECT = 0x08
CMD_LEAVE = 0x0A
CMD_READY = 0x0F
CMD_STAT_RX = 0x21
CMD_STAT_TX = 0x22
CMD_STAT_RSSI = 0x23
CMD_STAT_SNR = 0x24
CMD_STAT_CHTM = 0x25
CMD_STAT_PHYPRM = 0x26
CMD_STAT_BAT = 0x27
CMD_BLINK = 0x30
CMD_RANDOM = 0x40
CMD_FB_EXT = 0x41
CMD_FB_READ = 0x42
CMD_FB_WRITE = 0x43
CMD_BT_CTRL = 0x46
CMD_PLATFORM = 0x48
CMD_MCU = 0x49
CMD_FW_VERSION = 0x50
CMD_ROM_READ = 0x51
CMD_RESET = 0x55
DETECT_REQ = 0x73
DETECT_RESP = 0x46
RADIO_STATE_OFF = 0x00
RADIO_STATE_ON = 0x01
RADIO_STATE_ASK = 0xFF
CMD_ERROR = 0x90
ERROR_INITRADIO = 0x01
ERROR_TXFAILED = 0x02
ERROR_EEPROM_LOCKED = 0x03
ERROR_QUEUE_FULL = 0x04
ERROR_MEMORY_LOW = 0x05
ERROR_INVALID_FIRMWARE = 0x10
ERROR_INVALID_BLE_MTU = 0x20
PLATFORM_AVR = 0x90
PLATFORM_ESP32 = 0x80
@staticmethod
def escape(data):
data = data.replace(bytes([0xdb]), bytes([0xdb, 0xdd]))
data = data.replace(bytes([0xc0]), bytes([0xdb, 0xdc]))
return data
class AndroidBluetoothManager():
DEVICE_TYPE_CLASSIC = 1
DEVICE_TYPE_LE = 2
DEVICE_TYPE_DUAL = 3
def __init__(self, owner, target_device_name = None, target_device_address = None):
from jnius import autoclass
self.owner = owner
self.connected = False
self.target_device_name = target_device_name
self.target_device_address = target_device_address
self.potential_remote_devices = []
self.rfcomm_socket = None
self.connected_device = None
self.connection_failed = False
self.bt_adapter = autoclass('android.bluetooth.BluetoothAdapter')
self.bt_device = autoclass('android.bluetooth.BluetoothDevice')
self.bt_socket = autoclass('android.bluetooth.BluetoothSocket')
self.bt_rfcomm_service_record = autoclass('java.util.UUID').fromString("00001101-0000-1000-8000-00805F9B34FB")
self.buffered_input_stream = autoclass('java.io.BufferedInputStream')
def connect(self, device_address=None):
self.rfcomm_socket = self.remote_device.createRfcommSocketToServiceRecord(self.bt_rfcomm_service_record)
def bt_enabled(self):
return self.bt_adapter.getDefaultAdapter().isEnabled()
def get_paired_devices(self):
if self.bt_enabled():
return self.bt_adapter.getDefaultAdapter().getBondedDevices()
else:
RNS.log("Could not query paired devices, Bluetooth is disabled", RNS.LOG_EXTREME)
return []
def get_potential_devices(self):
potential_devices = []
for device in self.get_paired_devices():
if self.target_device_address != None:
if str(device.getAddress()).replace(":", "").lower() == str(self.target_device_address).replace(":", "").lower():
if self.target_device_name == None:
potential_devices.append(device)
else:
if device.getName().lower() == self.target_device_name.lower():
potential_devices.append(device)
elif self.target_device_name != None:
if device.getName().lower() == self.target_device_name.lower():
potential_devices.append(device)
else:
if device.getName().lower().startswith("rnode "):
potential_devices.append(device)
return potential_devices
def connect_any_device(self):
if (self.rfcomm_socket != None and not self.rfcomm_socket.isConnected()) or self.rfcomm_socket == None:
self.connection_failed = False
if len(self.potential_remote_devices) == 0:
self.potential_remote_devices = self.get_potential_devices()
if len(self.potential_remote_devices) == 0:
RNS.log("No suitable bluetooth devices available, can't connect", RNS.LOG_DEBUG)
return
while not self.connected and len(self.potential_remote_devices) > 0:
device = self.potential_remote_devices.pop()
try:
self.rfcomm_socket = device.createRfcommSocketToServiceRecord(self.bt_rfcomm_service_record)
if self.rfcomm_socket == None:
raise IOError("Bluetooth stack returned no socket object")
else:
if not self.rfcomm_socket.isConnected():
try:
self.rfcomm_socket.connect()
self.rfcomm_reader = self.buffered_input_stream(self.rfcomm_socket.getInputStream(), 1024)
self.rfcomm_writer = self.rfcomm_socket.getOutputStream()
self.connected = True
self.connected_device = device
RNS.log("Bluetooth device "+str(self.connected_device.getName())+" "+str(self.connected_device.getAddress())+" connected.")
except Exception as e:
raise IOError("The Bluetooth RFcomm socket could not be connected: "+str(e))
except Exception as e:
RNS.log("Could not create and connect Bluetooth RFcomm socket for "+str(device.getName())+" "+str(device.getAddress()), RNS.LOG_EXTREME)
RNS.log("The contained exception was: "+str(e), RNS.LOG_EXTREME)
def close(self):
if self.connected:
if self.rfcomm_reader != None:
self.rfcomm_reader.close()
self.rfcomm_reader = None
if self.rfcomm_writer != None:
self.rfcomm_writer.close()
self.rfcomm_writer = None
if self.rfcomm_socket != None:
self.rfcomm_socket.close()
self.connected = False
self.connected_device = None
self.potential_remote_devices = []
def read(self, len = None):
if self.connection_failed:
raise IOError("Bluetooth connection failed")
else:
if self.connected and self.rfcomm_reader != None:
available = self.rfcomm_reader.available()
if available > 0:
if hasattr(self.rfcomm_reader, "readNBytes"):
return self.rfcomm_reader.readNBytes(available)
else:
# Compatibility mode for older android versions lacking readNBytes
rb = self.rfcomm_reader.read().to_bytes(1, "big")
return rb
else:
return bytes([])
else:
raise IOError("No RFcomm socket available")
def write(self, data):
try:
self.rfcomm_writer.write(data)
self.rfcomm_writer.flush()
return len(data)
except Exception as e:
RNS.log("Bluetooth connection failed for "+str(self), RNS.LOG_ERROR)
self.connection_failed = True
return 0
class RNodeInterface(Interface):
MAX_CHUNK = 32768
FREQ_MIN = 137000000
FREQ_MAX = 1020000000
RSSI_OFFSET = 157
CALLSIGN_MAX_LEN = 32
REQUIRED_FW_VER_MAJ = 1
REQUIRED_FW_VER_MIN = 52
RECONNECT_WAIT = 5
PORT_IO_TIMEOUT = 3
Q_SNR_MIN_BASE = -9
Q_SNR_MAX = 6
Q_SNR_STEP = 2
BATTERY_STATE_UNKNOWN = 0x00
BATTERY_STATE_DISCHARGING = 0x01
BATTERY_STATE_CHARGING = 0x02
BATTERY_STATE_CHARGED = 0x03
@classmethod
def bluetooth_control(device_serial = None, port = None, enable_bluetooth = False, disable_bluetooth = False, pairing_mode = False):
if (port != None or device_serial != None) and (enable_bluetooth or disable_bluetooth or pairing_mode):
serial = None
bluetooth_state = None
if pairing_mode:
bluetooth_state = 0x01
elif enable_bluetooth:
bluetooth_state = 0x01
elif disable_bluetooth:
bluetooth_state = 0x00
if port != None:
RNS.log("Opening serial port "+port+"...")
# Get device parameters
from usb4a import usb
device = usb.get_usb_device(port)
if device:
vid = device.getVendorId()
pid = device.getProductId()
# Driver overrides for speficic chips
from usbserial4a import serial4a as pyserial
proxy = pyserial.get_serial_port
if vid == 0x1A86 and pid == 0x55D4:
# Force CDC driver for Qinheng CH34x
RNS.log("Using CDC driver for "+RNS.hexrep(vid)+":"+RNS.hexrep(pid), RNS.LOG_DEBUG)
from usbserial4a.cdcacmserial4a import CdcAcmSerial
proxy = CdcAcmSerial
serial = proxy(
port,
baudrate = 115200,
bytesize = 8,
parity = "N",
stopbits = 1,
xonxoff = False,
rtscts = False,
timeout = None,
inter_byte_timeout = None,
# write_timeout = wtimeout,
dsrdtr = False,
)
if vid == 0x0403:
# Hardware parameters for FTDI devices @ 115200 baud
serial.DEFAULT_READ_BUFFER_SIZE = 16 * 1024
serial.USB_READ_TIMEOUT_MILLIS = 100
serial.timeout = 0.1
elif vid == 0x10C4:
# Hardware parameters for SiLabs CP210x @ 115200 baud
serial.DEFAULT_READ_BUFFER_SIZE = 64
serial.USB_READ_TIMEOUT_MILLIS = 12
serial.timeout = 0.012
elif vid == 0x1A86 and pid == 0x55D4:
# Hardware parameters for Qinheng CH34x @ 115200 baud
serial.DEFAULT_READ_BUFFER_SIZE = 64
serial.USB_READ_TIMEOUT_MILLIS = 12
serial.timeout = 0.1
else:
# Default values
serial.DEFAULT_READ_BUFFER_SIZE = 1 * 1024
serial.USB_READ_TIMEOUT_MILLIS = 100
serial.timeout = 0.1
elif device_serial != None:
serial = device_serial
if serial != None:
if serial.is_open:
kiss_command = bytes([KISS.FEND, KISS.CMD_BT_CTRL, bluetooth_state, KISS.FEND])
serial.write(kiss_command)
if pairing_mode:
kiss_command = bytes([KISS.FEND, KISS.CMD_BT_CTRL, 0x02, KISS.FEND])
serial.write(kiss_command)
if port != None:
serial.close()
def __init__(
self, owner, name, port, frequency = None, bandwidth = None, txpower = None,
sf = None, cr = None, flow_control = False, id_interval = None,
allow_bluetooth = False, target_device_name = None,
target_device_address = None, id_callsign = None, st_alock = None, lt_alock = None,
ble_addr = None, ble_name = None, force_ble=False):
import importlib
if RNS.vendor.platformutils.is_android():
self.on_android = True
if importlib.util.find_spec('usbserial4a') != None:
if importlib.util.find_spec('jnius') == None:
RNS.log("Could not load jnius API wrapper for Android, RNode interface cannot be created.", RNS.LOG_CRITICAL)
RNS.log("This probably means you are trying to use an USB-based interface from within Termux or similar.", RNS.LOG_CRITICAL)
RNS.log("This is currently not possible, due to this environment limiting access to the native Android APIs.", RNS.LOG_CRITICAL)
RNS.panic()
from usbserial4a import serial4a as serial
self.parity = "N"
self.bt_target_device_name = target_device_name
self.bt_target_device_address = target_device_address
if allow_bluetooth:
self.bt_manager = AndroidBluetoothManager(
owner = self,
target_device_name = self.bt_target_device_name,
target_device_address = self.bt_target_device_address
)
else:
self.bt_manager = None
else:
RNS.log("Could not load USB serial module for Android, RNode interface cannot be created.", RNS.LOG_CRITICAL)
RNS.log("You can install this module by issuing: pip install usbserial4a", RNS.LOG_CRITICAL)
RNS.panic()
else:
raise SystemError("Android-specific interface was used on non-Android OS")
super().__init__()
self.HW_MTU = 508
self.pyserial = serial
self.serial = None
self.owner = owner
self.name = name
self.port = port
self.speed = 115200
self.databits = 8
self.stopbits = 1
self.timeout = 150
self.online = False
self.detached = False
self.hw_errors = []
self.allow_bluetooth = allow_bluetooth
self.use_ble = False
self.ble_name = ble_name
self.ble_addr = ble_addr
self.ble = None
self.ble_rx_lock = threading.Lock()
self.ble_tx_lock = threading.Lock()
self.ble_rx_queue= b""
self.ble_tx_queue= b""
self.frequency = frequency
self.bandwidth = bandwidth
self.txpower = txpower
self.sf = sf
self.cr = cr
self.state = KISS.RADIO_STATE_OFF
self.bitrate = 0
self.st_alock = st_alock
self.lt_alock = lt_alock
self.platform = None
self.display = None
self.mcu = None
self.detected = False
self.firmware_ok = False
self.maj_version = 0
self.min_version = 0
self.last_id = 0
self.first_tx = None
self.reconnect_w = RNodeInterface.RECONNECT_WAIT
self.reconnect_lock = threading.Lock()
self.r_frequency = None
self.r_bandwidth = None
self.r_txpower = None
self.r_sf = None
self.r_cr = None
self.r_state = None
self.r_lock = None
self.r_stat_rx = None
self.r_stat_tx = None
self.r_stat_rssi = None
self.r_stat_snr = None
self.r_st_alock = None
self.r_lt_alock = None
self.r_random = None
self.r_airtime_short = 0.0
self.r_airtime_long = 0.0
self.r_channel_load_short = 0.0
self.r_channel_load_long = 0.0
self.r_symbol_time_ms = None
self.r_symbol_rate = None
self.r_preamble_symbols = None
self.r_premable_time_ms = None
self.r_battery_state = RNodeInterface.BATTERY_STATE_UNKNOWN
self.r_battery_percent = 0
self.packet_queue = []
self.flow_control = flow_control
self.interface_ready = False
self.announce_rate_target = None
self.last_port_io = 0
self.port_io_timeout = RNodeInterface.PORT_IO_TIMEOUT
self.last_imagedata = None
if force_ble or self.ble_addr != None or self.ble_name != None:
self.use_ble = True
self.validcfg = True
if (self.frequency < RNodeInterface.FREQ_MIN or self.frequency > RNodeInterface.FREQ_MAX):
RNS.log("Invalid frequency configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.txpower < 0 or self.txpower > 22):
RNS.log("Invalid TX power configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.bandwidth < 7800 or self.bandwidth > 500000):
RNS.log("Invalid bandwidth configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.sf < 5 or self.sf > 12):
RNS.log("Invalid spreading factor configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.cr < 5 or self.cr > 8):
RNS.log("Invalid coding rate configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.st_alock and (self.st_alock < 0.0 or self.st_alock > 100.0)):
RNS.log("Invalid short-term airtime limit configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.lt_alock and (self.lt_alock < 0.0 or self.lt_alock > 100.0)):
RNS.log("Invalid long-term airtime limit configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if id_interval != None and id_callsign != None:
if (len(id_callsign.encode("utf-8")) <= RNodeInterface.CALLSIGN_MAX_LEN):
self.should_id = True
self.id_callsign = id_callsign.encode("utf-8")
self.id_interval = id_interval
else:
RNS.log("The encoded ID callsign for "+str(self)+" exceeds the max length of "+str(RNodeInterface.CALLSIGN_MAX_LEN)+" bytes.", RNS.LOG_ERROR)
self.validcfg = False
else:
self.id_interval = None
self.id_callsign = None
if (not self.validcfg):
raise ValueError("The configuration for "+str(self)+" contains errors, interface is offline")
try:
self.open_port()
if self.serial != None:
if self.serial.is_open:
self.configure_device()
else:
raise IOError("Could not open serial port")
elif self.bt_manager != None:
if self.bt_manager.connected:
self.configure_device()
else:
raise IOError("Could not connect to any Bluetooth devices")
else:
raise IOError("Neither serial port nor Bluetooth devices available")
except Exception as e:
RNS.log("Could not open serial port for interface "+str(self), RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
if len(self.hw_errors) == 0:
RNS.log("Reticulum will attempt to bring up this interface periodically", RNS.LOG_ERROR)
thread = threading.Thread(target=self.reconnect_port, daemon=True).start()
def read_mux(self, len=None):
if self.serial != None:
return self.serial.read()
elif self.bt_manager != None:
return self.bt_manager.read()
else:
raise IOError("No ports available for reading")
def write_mux(self, data):
if self.serial != None:
written = self.serial.write(data)
self.last_port_io = time.time()
return written
elif self.bt_manager != None:
written = self.bt_manager.write(data)
if (written == len(data)):
self.last_port_io = time.time()
return written
else:
raise IOError("No ports available for writing")
# def reset_ble(self):
# RNS.log(f"Clearing previous connection instance: "+str(self.ble))
# del self.ble
# self.ble = None
# self.serial = None
# self.ble = BLEConnection(owner=self, target_name=self.ble_name, target_bt_addr=self.ble_addr)
# self.serial = self.ble
# RNS.log(f"New connection instance: "+str(self.ble))
def open_port(self):
if not self.use_ble:
if self.port != None:
RNS.log("Opening serial port "+self.port+"...")
# Get device parameters
from usb4a import usb
device = usb.get_usb_device(self.port)
if device:
vid = device.getVendorId()
pid = device.getProductId()
# Driver overrides for speficic chips
proxy = self.pyserial.get_serial_port
if vid == 0x1A86 and pid == 0x55D4:
# Force CDC driver for Qinheng CH34x
RNS.log(str(self)+" using CDC driver for "+RNS.hexrep(vid)+":"+RNS.hexrep(pid), RNS.LOG_DEBUG)
from usbserial4a.cdcacmserial4a import CdcAcmSerial
proxy = CdcAcmSerial
self.serial = proxy(
self.port,
baudrate = self.speed,
bytesize = self.databits,
parity = self.parity,
stopbits = self.stopbits,
xonxoff = False,
rtscts = False,
timeout = None,
inter_byte_timeout = None,
# write_timeout = wtimeout,
dsrdtr = False,
)
if vid == 0x0403:
# Hardware parameters for FTDI devices @ 115200 baud
self.serial.DEFAULT_READ_BUFFER_SIZE = 16 * 1024
self.serial.USB_READ_TIMEOUT_MILLIS = 100
self.serial.timeout = 0.1
elif vid == 0x10C4:
# Hardware parameters for SiLabs CP210x @ 115200 baud
self.serial.DEFAULT_READ_BUFFER_SIZE = 64
self.serial.USB_READ_TIMEOUT_MILLIS = 12
self.serial.timeout = 0.012
elif vid == 0x1A86 and pid == 0x55D4:
# Hardware parameters for Qinheng CH34x @ 115200 baud
self.serial.DEFAULT_READ_BUFFER_SIZE = 64
self.serial.USB_READ_TIMEOUT_MILLIS = 12
self.serial.timeout = 0.1
else:
# Default values
self.serial.DEFAULT_READ_BUFFER_SIZE = 1 * 1024
self.serial.USB_READ_TIMEOUT_MILLIS = 100
self.serial.timeout = 0.1
RNS.log(str(self)+" USB read buffer size set to "+RNS.prettysize(self.serial.DEFAULT_READ_BUFFER_SIZE), RNS.LOG_DEBUG)
RNS.log(str(self)+" USB read timeout set to "+str(self.serial.USB_READ_TIMEOUT_MILLIS)+"ms", RNS.LOG_DEBUG)
RNS.log(str(self)+" USB write timeout set to "+str(self.serial.USB_WRITE_TIMEOUT_MILLIS)+"ms", RNS.LOG_DEBUG)
elif self.allow_bluetooth:
if self.bt_manager == None:
self.bt_manager = AndroidBluetoothManager(
owner = self,
target_device_name = self.bt_target_device_name,
target_device_address = self.bt_target_device_address
)
if self.bt_manager != None:
self.bt_manager.connect_any_device()
else:
if self.ble == None:
self.ble = BLEConnection(owner=self, target_name=self.ble_name, target_bt_addr=self.ble_addr)
self.serial = self.ble
open_time = time.time()
while not self.ble.connected and time.time() < open_time + self.ble.CONNECT_TIMEOUT:
time.sleep(1)
def configure_device(self):
self.resetRadioState()
sleep(2.0)
thread = threading.Thread(target=self.readLoop, daemon=True).start()
self.detect()
if not self.use_ble:
sleep(0.5)
else:
ble_detect_timeout = 5
detect_time = time.time()
while not self.detected and time.time() < detect_time + ble_detect_timeout:
time.sleep(0.1)
if self.detected:
detect_time = RNS.prettytime(time.time()-detect_time)
else:
RNS.log(f"RNode detect timed out over {self.port}", RNS.LOG_ERROR)
if not self.detected:
raise IOError("Could not detect device")
else:
if self.platform == KISS.PLATFORM_ESP32:
self.display = True
if not self.firmware_ok:
raise IOError("Invalid device firmware")
if self.serial != None and self.port != None:
self.timeout = 200
RNS.log("Serial port "+self.port+" is now open")
if self.bt_manager != None and self.bt_manager.connected:
self.timeout = 1500
RNS.log("Bluetooth connection to RNode now open")
RNS.log("Configuring RNode interface...", RNS.LOG_VERBOSE)
self.initRadio()
if (self.validateRadioState()):
self.interface_ready = True
RNS.log(str(self)+" is configured and powered up")
sleep(0.3)
self.online = True
else:
RNS.log("After configuring "+str(self)+", the reported radio parameters did not match your configuration.", RNS.LOG_ERROR)
RNS.log("Make sure that your hardware actually supports the parameters specified in the configuration", RNS.LOG_ERROR)
RNS.log("Aborting RNode startup", RNS.LOG_ERROR)
if self.serial != None:
self.serial.close()
if self.bt_manager != None:
self.bt_manager.close()
raise IOError("RNode interface did not pass configuration validation")
def initRadio(self):
self.setFrequency()
time.sleep(0.15)
self.setBandwidth()
time.sleep(0.15)
self.setTXPower()
time.sleep(0.15)
self.setSpreadingFactor()
time.sleep(0.15)
self.setCodingRate()
time.sleep(0.15)
self.setSTALock()
time.sleep(0.15)
self.setLTALock()
time.sleep(0.15)
self.setRadioState(KISS.RADIO_STATE_ON)
time.sleep(0.15)
if self.use_ble:
time.sleep(1)
def detect(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_DETECT, KISS.DETECT_REQ, KISS.FEND, KISS.CMD_FW_VERSION, 0x00, KISS.FEND, KISS.CMD_PLATFORM, 0x00, KISS.FEND, KISS.CMD_MCU, 0x00, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while detecting hardware for "+str(self))
def leave(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_LEAVE, 0xFF, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while sending host left command to device")
def enable_bluetooth(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_BT_CTRL, 0x01, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while sending bluetooth enable command to device")
def disable_bluetooth(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_BT_CTRL, 0x00, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while sending bluetooth disable command to device")
def bluetooth_pair(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_BT_CTRL, 0x02, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while sending bluetooth pair command to device")
def enable_external_framebuffer(self):
if self.display != None:
kiss_command = bytes([KISS.FEND, KISS.CMD_FB_EXT, 0x01, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while enabling external framebuffer on device")
def disable_external_framebuffer(self):
if self.display != None:
kiss_command = bytes([KISS.FEND, KISS.CMD_FB_EXT, 0x00, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while disabling external framebuffer on device")
FB_PIXEL_WIDTH = 64
FB_BITS_PER_PIXEL = 1
FB_PIXELS_PER_BYTE = 8//FB_BITS_PER_PIXEL
FB_BYTES_PER_LINE = FB_PIXEL_WIDTH//FB_PIXELS_PER_BYTE
def display_image(self, imagedata):
self.last_imagedata = imagedata
if self.display != None:
lines = len(imagedata)//8
for line in range(lines):
line_start = line*RNodeInterface.FB_BYTES_PER_LINE
line_end = line_start+RNodeInterface.FB_BYTES_PER_LINE
line_data = bytes(imagedata[line_start:line_end])
self.write_framebuffer(line, line_data)
def write_framebuffer(self, line, line_data):
if self.display != None:
line_byte = line.to_bytes(1, byteorder="big", signed=False)
data = line_byte+line_data
escaped_data = KISS.escape(data)
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_FB_WRITE])+escaped_data+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while writing framebuffer data device")
def hard_reset(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_RESET, 0xf8, KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while restarting device")
sleep(4.0);
def setFrequency(self):
c1 = self.frequency >> 24
c2 = self.frequency >> 16 & 0xFF
c3 = self.frequency >> 8 & 0xFF
c4 = self.frequency & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_FREQUENCY])+data+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring frequency for "+str(self))
def setBandwidth(self):
c1 = self.bandwidth >> 24
c2 = self.bandwidth >> 16 & 0xFF
c3 = self.bandwidth >> 8 & 0xFF
c4 = self.bandwidth & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_BANDWIDTH])+data+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring bandwidth for "+str(self))
def setTXPower(self):
txp = bytes([self.txpower])
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_TXPOWER])+txp+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring TX power for "+str(self))
def setSpreadingFactor(self):
sf = bytes([self.sf])
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_SF])+sf+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring spreading factor for "+str(self))
def setCodingRate(self):
cr = bytes([self.cr])
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_CR])+cr+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring coding rate for "+str(self))
def setSTALock(self):
if self.st_alock != None:
at = int(self.st_alock*100)
c1 = at >> 8 & 0xFF
c2 = at & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2]))
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_ST_ALOCK])+data+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring short-term airtime limit for "+str(self))
def setLTALock(self):
if self.lt_alock != None:
at = int(self.lt_alock*100)
c1 = at >> 8 & 0xFF
c2 = at & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2]))
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_LT_ALOCK])+data+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring long-term airtime limit for "+str(self))
def setRadioState(self, state):
self.state = state
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_RADIO_STATE])+bytes([state])+bytes([KISS.FEND])
written = self.write_mux(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring radio state for "+str(self))
def validate_firmware(self):
if (self.maj_version > RNodeInterface.REQUIRED_FW_VER_MAJ):
self.firmware_ok = True
else:
if (self.maj_version >= RNodeInterface.REQUIRED_FW_VER_MAJ):
if (self.min_version >= RNodeInterface.REQUIRED_FW_VER_MIN):
self.firmware_ok = True
if self.firmware_ok:
return
RNS.log("The firmware version of the connected RNode is "+str(self.maj_version)+"."+str(self.min_version), RNS.LOG_ERROR)
RNS.log("This version of Reticulum requires at least version "+str(RNodeInterface.REQUIRED_FW_VER_MAJ)+"."+str(RNodeInterface.REQUIRED_FW_VER_MIN), RNS.LOG_ERROR)
RNS.log("Please update your RNode firmware with rnodeconf from https://github.com/markqvist/reticulum/")
error_description = "The firmware version of the connected RNode is "+str(self.maj_version)+"."+str(self.min_version)+". "
error_description += "This version of Reticulum requires at least version "+str(RNodeInterface.REQUIRED_FW_VER_MAJ)+"."+str(RNodeInterface.REQUIRED_FW_VER_MIN)+". "
error_description += "Please update your RNode firmware with rnodeconf from: https://github.com/markqvist/rnodeconfigutil/"
self.hw_errors.append({"error": KISS.ERROR_INVALID_FIRMWARE, "description": error_description})
def validateRadioState(self):
RNS.log("Waiting for radio configuration validation for "+str(self)+"...", RNS.LOG_VERBOSE)
if not self.platform == KISS.PLATFORM_ESP32:
sleep(1.00);
else:
sleep(2.00);
self.validcfg = True
if (self.r_frequency != None and abs(self.frequency - int(self.r_frequency)) > 100):
RNS.log("Frequency mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.bandwidth != self.r_bandwidth):
RNS.log("Bandwidth mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.txpower != self.r_txpower):
RNS.log("TX power mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.sf != self.r_sf):
RNS.log("Spreading factor mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.state != self.r_state):
RNS.log("Radio state mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.validcfg):
return True
else:
return False
def resetRadioState(self):
self.r_frequency = None
self.r_bandwidth = None
self.r_txpower = None
self.r_sf = None
self.r_cr = None
self.r_state = None
def updateBitrate(self):
try:
self.bitrate = self.r_sf * ( (4.0/self.r_cr) / (math.pow(2,self.r_sf)/(self.r_bandwidth/1000)) ) * 1000
self.bitrate_kbps = round(self.bitrate/1000.0, 2)
RNS.log(str(self)+" On-air bitrate is now "+str(self.bitrate_kbps)+ " kbps", RNS.LOG_VERBOSE)
except:
self.bitrate = 0
def processIncoming(self, data):
self.rxb += len(data)
def af():
self.owner.inbound(data, self)
threading.Thread(target=af, daemon=True).start()
def processOutgoing(self,data):
datalen = len(data)
if self.online:
if self.interface_ready:
if self.flow_control:
self.interface_ready = False
if data == self.id_callsign:
self.first_tx = None
else:
if self.first_tx == None:
self.first_tx = time.time()
data = KISS.escape(data)
frame = bytes([0xc0])+bytes([0x00])+data+bytes([0xc0])
written = self.write_mux(frame)
self.txb += datalen
if written != len(frame):
raise IOError("Serial interface only wrote "+str(written)+" bytes of "+str(len(data)))
else:
self.queue(data)
def queue(self, data):
self.packet_queue.append(data)
def process_queue(self):
if len(self.packet_queue) > 0:
data = self.packet_queue.pop(0)
self.interface_ready = True
self.processOutgoing(data)
elif len(self.packet_queue) == 0:
self.interface_ready = True
def readLoop(self):
try:
in_frame = False
escape = False
command = KISS.CMD_UNKNOWN
data_buffer = b""
command_buffer = b""
last_read_ms = int(time.time()*1000)
# TODO: Ensure hotplug support for serial drivers
# This should work now with the new time-based
# detect polling.
while (self.serial != None and self.serial.is_open) or (self.bt_manager != None and self.bt_manager.connected):
serial_bytes = self.read_mux()
got = len(serial_bytes)
if got > 0:
self.last_port_io = time.time()
for byte in serial_bytes:
last_read_ms = int(time.time()*1000)
if (in_frame and byte == KISS.FEND and command == KISS.CMD_DATA):
in_frame = False
self.processIncoming(data_buffer)
data_buffer = b""
command_buffer = b""
elif (byte == KISS.FEND):
in_frame = True
command = KISS.CMD_UNKNOWN
data_buffer = b""
command_buffer = b""
elif (in_frame and len(data_buffer) < self.HW_MTU):
if (len(data_buffer) == 0 and command == KISS.CMD_UNKNOWN):
command = byte
elif (command == KISS.CMD_DATA):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
data_buffer = data_buffer+bytes([byte])
elif (command == KISS.CMD_FREQUENCY):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.r_frequency = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
RNS.log(str(self)+" Radio reporting frequency is "+str(self.r_frequency/1000000.0)+" MHz", RNS.LOG_DEBUG)
self.updateBitrate()
elif (command == KISS.CMD_BANDWIDTH):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.r_bandwidth = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
RNS.log(str(self)+" Radio reporting bandwidth is "+str(self.r_bandwidth/1000.0)+" KHz", RNS.LOG_DEBUG)
self.updateBitrate()
elif (command == KISS.CMD_TXPOWER):
self.r_txpower = byte
RNS.log(str(self)+" Radio reporting TX power is "+str(self.r_txpower)+" dBm", RNS.LOG_DEBUG)
elif (command == KISS.CMD_SF):
self.r_sf = byte
RNS.log(str(self)+" Radio reporting spreading factor is "+str(self.r_sf), RNS.LOG_DEBUG)
self.updateBitrate()
elif (command == KISS.CMD_CR):
self.r_cr = byte
RNS.log(str(self)+" Radio reporting coding rate is "+str(self.r_cr), RNS.LOG_DEBUG)
self.updateBitrate()
elif (command == KISS.CMD_RADIO_STATE):
self.r_state = byte
if self.r_state:
RNS.log(str(self)+" Radio reporting state is online", RNS.LOG_DEBUG)
else:
RNS.log(str(self)+" Radio reporting state is offline", RNS.LOG_DEBUG)
elif (command == KISS.CMD_RADIO_LOCK):
self.r_lock = byte
elif (command == KISS.CMD_FW_VERSION):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
self.maj_version = int(command_buffer[0])
self.min_version = int(command_buffer[1])
self.validate_firmware()
elif (command == KISS.CMD_STAT_RX):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.r_stat_rx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
elif (command == KISS.CMD_STAT_TX):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.r_stat_tx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
elif (command == KISS.CMD_STAT_RSSI):
self.r_stat_rssi = byte-RNodeInterface.RSSI_OFFSET
elif (command == KISS.CMD_STAT_SNR):
self.r_stat_snr = int.from_bytes(bytes([byte]), byteorder="big", signed=True) * 0.25
try:
sfs = self.r_sf-7
snr = self.r_stat_snr
q_snr_min = RNodeInterface.Q_SNR_MIN_BASE-sfs*RNodeInterface.Q_SNR_STEP
q_snr_max = RNodeInterface.Q_SNR_MAX
q_snr_span = q_snr_max-q_snr_min
quality = round(((snr-q_snr_min)/(q_snr_span))*100,1)
if quality > 100.0: quality = 100.0
if quality < 0.0: quality = 0.0
self.r_stat_q = quality
except:
pass
elif (command == KISS.CMD_ST_ALOCK):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
at = command_buffer[0] << 8 | command_buffer[1]
self.r_st_alock = at/100.0
RNS.log(str(self)+" Radio reporting short-term airtime limit is "+str(self.r_st_alock)+"%", RNS.LOG_DEBUG)
elif (command == KISS.CMD_LT_ALOCK):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
at = command_buffer[0] << 8 | command_buffer[1]
self.r_lt_alock = at/100.0
RNS.log(str(self)+" Radio reporting long-term airtime limit is "+str(self.r_lt_alock)+"%", RNS.LOG_DEBUG)
elif (command == KISS.CMD_STAT_CHTM):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 8):
ats = command_buffer[0] << 8 | command_buffer[1]
atl = command_buffer[2] << 8 | command_buffer[3]
cus = command_buffer[4] << 8 | command_buffer[5]
cul = command_buffer[6] << 8 | command_buffer[7]
self.r_airtime_short = ats/100.0
self.r_airtime_long = atl/100.0
self.r_channel_load_short = cus/100.0
self.r_channel_load_long = cul/100.0
elif (command == KISS.CMD_STAT_PHYPRM):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 10):
lst = (command_buffer[0] << 8 | command_buffer[1])/1000.0
lsr = command_buffer[2] << 8 | command_buffer[3]
prs = command_buffer[4] << 8 | command_buffer[5]
prt = command_buffer[6] << 8 | command_buffer[7]
cst = command_buffer[8] << 8 | command_buffer[9]
if lst != self.r_symbol_time_ms or lsr != self.r_symbol_rate or prs != self.r_preamble_symbols or prt != self.r_premable_time_ms or cst != self.r_csma_slot_time_ms:
self.r_symbol_time_ms = lst
self.r_symbol_rate = lsr
self.r_preamble_symbols = prs
self.r_premable_time_ms = prt
self.r_csma_slot_time_ms = cst
RNS.log(str(self)+" Radio reporting symbol time is "+str(round(self.r_symbol_time_ms,2))+"ms (at "+str(self.r_symbol_rate)+" baud)", RNS.LOG_DEBUG)
RNS.log(str(self)+" Radio reporting preamble is "+str(self.r_preamble_symbols)+" symbols ("+str(self.r_premable_time_ms)+"ms)", RNS.LOG_DEBUG)
RNS.log(str(self)+" Radio reporting CSMA slot time is "+str(self.r_csma_slot_time_ms)+"ms", RNS.LOG_DEBUG)
elif (command == KISS.CMD_STAT_BAT):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
bat_percent = command_buffer[1]
if bat_percent > 100:
bat_percent = 100
if bat_percent < 0:
bat_percent = 0
self.r_battery_state = command_buffer[0]
self.r_battery_percent = bat_percent
elif (command == KISS.CMD_RANDOM):
self.r_random = byte
elif (command == KISS.CMD_PLATFORM):
self.platform = byte
elif (command == KISS.CMD_MCU):
self.mcu = byte
elif (command == KISS.CMD_ERROR):
if (byte == KISS.ERROR_INITRADIO):
RNS.log(str(self)+" hardware initialisation error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Radio initialisation failure")
elif (byte == KISS.ERROR_TXFAILED):
RNS.log(str(self)+" hardware TX error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Hardware transmit failure")
elif (byte == KISS.ERROR_MEMORY_LOW):
RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+"): Memory exhausted", RNS.LOG_ERROR)
self.hw_errors.append({"error": KISS.ERROR_MEMORY_LOW, "description": "Memory exhausted on connected device"})
else:
RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Unknown hardware failure")
elif (command == KISS.CMD_RESET):
if (byte == 0xF8):
if self.platform == KISS.PLATFORM_ESP32:
if self.online:
RNS.log("Detected reset while device was online, reinitialising device...", RNS.LOG_ERROR)
raise IOError("ESP32 reset")
elif (command == KISS.CMD_READY):
self.process_queue()
elif (command == KISS.CMD_DETECT):
if byte == KISS.DETECT_RESP:
self.detected = True
else:
self.detected = False
if got == 0:
time_since_last = int(time.time()*1000) - last_read_ms
if len(data_buffer) > 0 and time_since_last > self.timeout:
RNS.log(str(self)+" serial read timeout in command "+str(command), RNS.LOG_WARNING)
data_buffer = b""
in_frame = False
command = KISS.CMD_UNKNOWN
escape = False
if self.id_interval != None and self.id_callsign != None:
if self.first_tx != None:
if time.time() > self.first_tx + self.id_interval:
RNS.log("Interface "+str(self)+" is transmitting beacon data: "+str(self.id_callsign.decode("utf-8")), RNS.LOG_DEBUG)
self.processOutgoing(self.id_callsign)
if (time.time() - self.last_port_io > self.port_io_timeout):
self.detect()
if (time.time() - self.last_port_io > self.port_io_timeout*3):
raise IOError("Connected port for "+str(self)+" became unresponsive")
if self.bt_manager != None:
sleep(0.08)
except Exception as e:
self.online = False
RNS.log("A serial port occurred, the contained exception was: "+str(e), RNS.LOG_ERROR)
RNS.log("The interface "+str(self)+" experienced an unrecoverable error and is now offline.", RNS.LOG_ERROR)
if RNS.Reticulum.panic_on_interface_error:
RNS.panic()
RNS.log("Reticulum will attempt to reconnect the interface periodically.", RNS.LOG_ERROR)
self.online = False
if self.serial != None:
self.serial.close()
if self.bt_manager != None:
self.bt_manager.close()
if not self.detached:
self.reconnect_port()
def reconnect_port(self):
if self.reconnect_lock.locked():
RNS.log("Dropping superflous reconnect port job")
return
with self.reconnect_lock:
while not self.online and len(self.hw_errors) == 0:
try:
time.sleep(self.reconnect_w)
if self.serial != None and self.port != None:
RNS.log("Attempting to reconnect serial port "+str(self.port)+" for "+str(self)+"...", RNS.LOG_EXTREME)
if self.bt_manager != None:
RNS.log("Attempting to reconnect Bluetooth device for "+str(self)+"...", RNS.LOG_EXTREME)
self.open_port()
if hasattr(self, "serial") and self.serial != None and self.serial.is_open:
self.configure_device()
if self.online:
if self.last_imagedata != None:
self.display_image(self.last_imagedata)
self.enable_external_framebuffer()
elif hasattr(self, "bt_manager") and self.bt_manager != None and self.bt_manager.connected:
self.configure_device()
if self.online:
if self.last_imagedata != None:
self.display_image(self.last_imagedata)
self.enable_external_framebuffer()
except Exception as e:
RNS.log("Error while reconnecting RNode, the contained exception was: "+str(e), RNS.LOG_ERROR)
if self.online:
RNS.log("Reconnected serial port for "+str(self))
def detach(self):
self.detached = True
self.disable_external_framebuffer()
self.setRadioState(KISS.RADIO_STATE_OFF)
self.leave()
if self.use_ble:
self.ble.close()
def should_ingress_limit(self):
return False
def get_battery_state(self):
return self.r_battery_state
def get_battery_state_string(self):
if self.r_battery_state == RNodeInterface.BATTERY_STATE_CHARGED:
return "charged"
elif self.r_battery_state == RNodeInterface.BATTERY_STATE_CHARGING:
return "charging"
elif self.r_battery_state == RNodeInterface.BATTERY_STATE_DISCHARGING:
return "discharging"
else:
return "unknown"
def get_battery_percent(self):
return self.r_battery_percent
def ble_receive(self, data):
with self.ble_rx_lock:
self.ble_rx_queue += data
def ble_waiting(self):
return len(self.ble_tx_queue) > 0
def get_ble_waiting(self, n):
with self.ble_tx_lock:
data = self.ble_tx_queue[:n]
self.ble_tx_queue = self.ble_tx_queue[n:]
return data
def __str__(self):
return "RNodeInterface["+str(self.name)+"]"
class BLEConnection(BluetoothDispatcher):
UART_SERVICE_UUID = "6e400001-b5a3-f393-e0a9-e50e24dcca9e"
UART_RX_CHAR_UUID = "6e400002-b5a3-f393-e0a9-e50e24dcca9e"
UART_TX_CHAR_UUID = "6e400003-b5a3-f393-e0a9-e50e24dcca9e"
MAX_GATT_ATTR_LEN = 512
BASE_MTU = 20
TARGET_MTU = 512
MTU_TIMEOUT = 4.0
CONNECT_TIMEOUT = 7.0
RECONNECT_WAIT = 1.0
@property
def is_open(self):
return self.connected
@property
def in_waiting(self):
return len(self.owner.ble_rx_queue) > 0
def write(self, data_bytes):
with self.owner.ble_tx_lock:
self.owner.ble_tx_queue += data_bytes
return len(data_bytes)
def read(self):
with self.owner.ble_rx_lock:
data = self.owner.ble_rx_queue
self.owner.ble_rx_queue = b""
return data
def close(self):
try:
if self.connected:
RNS.log(f"Disconnecting BLE device from {self.owner}", RNS.LOG_DEBUG)
# RNS.log("Waiting for BLE write buffer to empty...")
timeout = time.time() + 10
while self.owner.ble_waiting() and self.write_thread != None and time.time() < timeout:
time.sleep(0.1)
# if time.time() > timeout:
# RNS.log("Writing timed out")
# else:
# RNS.log("Writing concluded")
self.rx_char = None
self.tx_char = None
self.mtu = BLEConnection.BASE_MTU
self.mtu_requested_time = None
if self.write_thread != None:
# RNS.log("Waiting for write thread to finish...")
while self.write_thread != None:
time.sleep(0.1)
# RNS.log("Writing finished, closing GATT connection")
self.close_gatt()
with self.owner.ble_rx_lock:
self.owner.ble_rx_queue = b""
with self.owner.ble_tx_lock:
self.owner.ble_tx_queue = b""
self.connected = False
self.ble_device = None
except Exception as e:
RNS.log("An error occurred while closing BLE connection for {self.owner}: {e}", RNS.LOG_ERROR)
RNS.trace_exception(e)
def __init__(self, owner=None, target_name=None, target_bt_addr=None):
super(BLEConnection, self).__init__()
self.owner = owner
self.target_name = target_name
self.target_bt_addr = target_bt_addr
self.connect_timeout = BLEConnection.CONNECT_TIMEOUT
self.ble_device = None
self.rx_char = None
self.tx_char = None
self.connected = False
self.was_connected = False
self.connected_time = None
self.mtu_requested_time = None
self.running = False
self.should_run = False
self.connect_job_running = False
self.write_thread = None
self.mtu = BLEConnection.BASE_MTU
self.target_mtu = BLEConnection.TARGET_MTU
self.bt_manager = AndroidBluetoothManager(owner=self)
self.should_run = True
self.connection_thread = threading.Thread(target=self.connection_job, daemon=True).start()
def write_loop(self):
try:
while self.connected and self.rx_char != None:
if self.owner.ble_waiting():
data = self.owner.get_ble_waiting(self.mtu)
self.write_characteristic(self.rx_char, data)
else:
time.sleep(0.1)
except Exception as e:
RNS.log("An error occurred in {self} write loop: {e}", RNS.LOG_ERROR)
RNS.trace_exception(e)
self.write_thread = None
def connection_job(self):
while self.should_run:
if self.bt_manager.bt_enabled():
if self.ble_device == None:
self.ble_device = self.find_target_device()
if self.ble_device != None:
if not self.connected:
if self.was_connected:
RNS.log(f"Throttling BLE reconnect for {BLEConnection.RECONNECT_WAIT} seconds", RNS.LOG_DEBUG)
time.sleep(BLEConnection.RECONNECT_WAIT)
self.connect_device()
else:
if self.connected:
RNS.log("Bluetooth was disabled, closing active BLE device connection", RNS.LOG_ERROR)
self.close()
time.sleep(2)
def connect_device(self):
if self.ble_device != None and self.bt_manager.bt_enabled():
RNS.log(f"Trying to connect BLE device {self.ble_device.getName()} / {self.ble_device.getAddress()} for {self.owner}...", RNS.LOG_DEBUG)
self.mtu = BLEConnection.BASE_MTU
self.connect_by_device_address(self.ble_device.getAddress())
end = time.time() + BLEConnection.CONNECT_TIMEOUT
while time.time() < end and not self.connected:
time.sleep(0.25)
if self.connected:
self.owner.port = f"ble://{self.ble_device.getAddress()}"
self.write_thread = threading.Thread(target=self.write_loop, daemon=True)
self.write_thread.start()
else:
RNS.log(f"BLE device connection timed out for {self.owner}", RNS.LOG_DEBUG)
if self.mtu_requested_time:
RNS.log("MTU update timeout, tearing down connection")
self.owner.hw_errors.append({"error": KISS.ERROR_INVALID_BLE_MTU, "description": "The Bluetooth Low Energy transfer MTU could not be configured for the connected device, and communication has failed. Restart Reticulum and any connected applications to retry connecting."})
self.close()
self.should_run = False
self.close_gatt()
self.connect_job_running = False
def device_disconnected(self):
RNS.log(f"BLE device for {self.owner} disconnected", RNS.LOG_NOTICE)
self.connected = False
self.ble_device = None
self.close_gatt()
def find_target_device(self):
found_device = None
potential_devices = self.bt_manager.get_paired_devices()
if self.target_bt_addr != None:
for device in potential_devices:
if (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_LE) or (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_DUAL):
if str(device.getAddress()).replace(":", "").lower() == str(self.target_bt_addr).replace(":", "").lower():
found_device = device
break
if not found_device and self.target_name != None:
for device in potential_devices:
if (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_LE) or (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_DUAL):
if device.getName().lower() == self.target_name.lower():
found_device = device
break
if not found_device:
for device in potential_devices:
if (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_LE) or (device.getType() == AndroidBluetoothManager.DEVICE_TYPE_DUAL):
if device.getName().startswith("RNode "):
found_device = device
break
return found_device
def on_connection_state_change(self, status, state):
if status == GATT_SUCCESS and state:
self.discover_services()
else:
self.device_disconnected()
def on_services(self, status, services):
if status == GATT_SUCCESS:
self.rx_char = services.search(BLEConnection.UART_RX_CHAR_UUID)
if self.rx_char is not None:
self.tx_char = services.search(BLEConnection.UART_TX_CHAR_UUID)
if self.tx_char is not None:
if self.enable_notifications(self.tx_char):
RNS.log("Enabled notifications for BLE TX characteristic", RNS.LOG_DEBUG)
RNS.log(f"Requesting BLE connection MTU update to {self.target_mtu}", RNS.LOG_DEBUG)
self.mtu_requested_time = time.time()
self.request_mtu(self.target_mtu)
else:
RNS.log("Could not enable notifications for BLE TX characteristic", RNS.LOG_ERROR)
else:
RNS.log("BLE device service discovery failure", RNS.LOG_ERROR)
def on_mtu_changed(self, mtu, status):
if status == GATT_SUCCESS:
self.mtu = min(mtu-5, BLEConnection.MAX_GATT_ATTR_LEN)
RNS.log(f"BLE MTU updated to {self.mtu} for {self.owner}", RNS.LOG_DEBUG)
self.connected = True
self.was_connected = True
self.connected_time = time.time()
self.mtu_requested_time = None
else:
RNS.log(f"MTU update request did not succeed, mtu={mtu}, status={status}", RNS.LOG_ERROR)
def on_characteristic_changed(self, characteristic):
if characteristic.getUuid().toString() == BLEConnection.UART_TX_CHAR_UUID:
recvd = bytes(characteristic.getValue())
self.owner.ble_receive(recvd)
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