hardware.py: get network info over dbus (#2727)
* Get network stuff using dbus * most people would call EDGE 2G * Small cleanuppull/1969/head
Willem Melching
GitHub
parent
790ad9296a
commit
c3b5ef8d4b
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@ -1,62 +1,132 @@
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import serial
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from common.hardware_base import HardwareBase
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from cereal import log
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import subprocess
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NM = 'org.freedesktop.NetworkManager'
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NM_CON_ACT = NM + '.Connection.Active'
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NM_DEV_WL = NM + '.Device.Wireless'
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NM_AP = NM + '.AccessPoint'
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DBUS_PROPS = 'org.freedesktop.DBus.Properties'
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MM = 'org.freedesktop.ModemManager1'
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MM_MODEM = MM + ".Modem"
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MM_MODEM_SIMPLE = MM + ".Modem.Simple"
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MM_SIM = MM + ".Sim"
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MM_MODEM_STATE_CONNECTED = 11
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NetworkType = log.ThermalData.NetworkType
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NetworkStrength = log.ThermalData.NetworkStrength
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def run_at_command(cmd, timeout=0.1):
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with serial.Serial("/dev/ttyUSB2", timeout=timeout) as ser:
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ser.write(cmd + b"\r\n")
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ser.readline() # Modem echos request
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return ser.readline().decode().rstrip()
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# https://developer.gnome.org/ModemManager/unstable/ModemManager-Flags-and-Enumerations.html#MMModemAccessTechnology
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MM_MODEM_ACCESS_TECHNOLOGY_UMTS = 1 << 5
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MM_MODEM_ACCESS_TECHNOLOGY_LTE = 1 << 14
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class Tici(HardwareBase):
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def __init__(self):
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import dbus # pylint: disable=import-error
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self.bus = dbus.SystemBus()
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self.nm = self.bus.get_object(NM, '/org/freedesktop/NetworkManager')
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self.mm = self.bus.get_object(MM, '/org/freedesktop/ModemManager1')
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def get_sound_card_online(self):
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return True
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def get_imei(self, slot):
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if slot != 0:
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return ""
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for _ in range(10):
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try:
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imei = run_at_command(b"AT+CGSN")
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if len(imei) == 15:
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return imei
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except serial.SerialException:
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pass
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raise RuntimeError("Error getting IMEI")
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def get_serial(self):
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return self.get_cmdline()['androidboot.serialno']
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def get_subscriber_info(self):
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return ""
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def reboot(self, reason=None):
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subprocess.check_output(["sudo", "reboot"])
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def get_network_type(self):
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return NetworkType.wifi
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primary_connection = self.nm.Get(NM, 'PrimaryConnection', dbus_interface=DBUS_PROPS)
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primary_connection = self.bus.get_object(NM, primary_connection)
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tp = primary_connection.Get(NM_CON_ACT, 'Type', dbus_interface=DBUS_PROPS)
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if tp in ['802-3-ethernet', '802-11-wireless']:
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return NetworkType.wifi
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elif tp in ['gsm']:
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modem = self.get_modem()
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access_t = modem.Get(MM_MODEM, 'AccessTechnologies', dbus_interface=DBUS_PROPS)
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if access_t >= MM_MODEM_ACCESS_TECHNOLOGY_LTE:
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return NetworkType.cell4G
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elif access_t >= MM_MODEM_ACCESS_TECHNOLOGY_UMTS:
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return NetworkType.cell3G
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else:
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return NetworkType.cell2G
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return NetworkType.none
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def get_modem(self):
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objects = self.mm.GetManagedObjects(dbus_interface="org.freedesktop.DBus.ObjectManager")
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modem_path = list(objects.keys())[0]
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return self.bus.get_object(MM, modem_path)
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def get_wlan(self):
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wlan_path = self.nm.GetDeviceByIpIface('wlan0', dbus_interface=NM)
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return self.bus.get_object(NM, wlan_path)
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def get_sim_info(self):
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return {
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'sim_id': '',
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'mcc_mnc': None,
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'network_type': ["Unknown"],
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'sim_state': ["ABSENT"],
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'data_connected': False
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}
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modem = self.get_modem()
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sim_path = modem.Get(MM_MODEM, 'Sim', dbus_interface=DBUS_PROPS)
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if sim_path == "/":
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return {
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'sim_id': '',
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'mcc_mnc': None,
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'network_type': ["Unknown"],
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'sim_state': ["ABSENT"],
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'data_connected': False
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}
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else:
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sim = self.bus.get_object(MM, sim_path)
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return {
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'sim_id': str(sim.Get(MM_SIM, 'SimIdentifier', dbus_interface=DBUS_PROPS)),
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'mcc_mnc': str(sim.Get(MM_SIM, 'OperatorIdentifier', dbus_interface=DBUS_PROPS)),
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'network_type': ["Unknown"],
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'sim_state': ["READY"],
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'data_connected': modem.Get(MM_MODEM, 'State', dbus_interface=DBUS_PROPS) == MM_MODEM_STATE_CONNECTED,
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}
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def get_subscriber_info(self):
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return ""
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def get_imei(self, slot):
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if slot != 0:
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return ""
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return str(self.get_modem().Get(MM_MODEM, 'EquipmentIdentifier', dbus_interface=DBUS_PROPS))
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def parse_strength(self, percentage):
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if percentage < 25:
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return NetworkStrength.poor
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elif percentage < 50:
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return NetworkStrength.moderate
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elif percentage < 75:
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return NetworkStrength.good
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else:
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return NetworkStrength.great
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def get_network_strength(self, network_type):
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return NetworkStrength.unknown
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network_strength = NetworkStrength.unknown
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if network_type == NetworkType.none:
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pass
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elif network_type == NetworkType.wifi:
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wlan = self.get_wlan()
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active_ap_path = wlan.Get(NM_DEV_WL, 'ActiveAccessPoint', dbus_interface=DBUS_PROPS)
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if active_ap_path != "/":
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active_ap = self.bus.get_object(NM, active_ap_path)
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strength = int(active_ap.Get(NM_AP, 'Strength', dbus_interface=DBUS_PROPS))
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network_strength = self.parse_strength(strength)
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else: # Cellular
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modem = self.get_modem()
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strength = int(modem.Get(MM_MODEM, 'SignalQuality', dbus_interface=DBUS_PROPS)[0])
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network_strength = self.parse_strength(strength)
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return network_strength
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# We don't have a battery, so let's use some sane constants
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def get_battery_capacity(self):
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