256 lines
10 KiB
Python
256 lines
10 KiB
Python
"""Coordinator for Bluetti integration."""
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from __future__ import annotations
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from typing import List
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import asyncio
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from datetime import timedelta
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import logging
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from typing import cast
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import async_timeout
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from bleak import BleakClient, BleakError
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from homeassistant.components import bluetooth
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.update_coordinator import (
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DataUpdateCoordinator,
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)
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from bluetti_mqtt.bluetooth.client import BluetoothClient
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from bluetti_mqtt.bluetooth import (
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BadConnectionError,
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ModbusError,
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ParseError,
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build_device,
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)
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from bluetti_mqtt.core.devices.bluetti_device import BluettiDevice
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from bluetti_mqtt.core.commands import ReadHoldingRegisters
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_LOGGER = logging.getLogger(__name__)
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class DummyDevice(BluettiDevice):
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"""Dummy device used to add more fields to existing devices.
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Changes made here are only temporary and should also be
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contributed to https://github.com/warhammerkid/bluetti_mqtt
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"""
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def __init__(self, device: BluettiDevice):
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"""Init dummy device with real device."""
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self.struct = device.struct
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if device.type == "EP600":
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# ADL400 Smart Meter for AC Solar
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self.struct.add_uint_field("adl400_ac_input_power_phase1", 1228)
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self.struct.add_uint_field("adl400_ac_input_power_phase2", 1236)
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self.struct.add_uint_field("adl400_ac_input_power_phase3", 1244)
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self.struct.add_decimal_field("adl400_ac_input_voltage_phase1", 1229, 1)
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self.struct.add_decimal_field("adl400_ac_input_voltage_phase2", 1237, 1)
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self.struct.add_decimal_field("adl400_ac_input_voltage_phase3", 1245, 1)
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# EP600 AC Input
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self.struct.add_decimal_field("ac_input_frequency", 1300, 1)
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self.struct.add_decimal_field("ac_input_voltage_phase1", 1314, 1)
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self.struct.add_decimal_field("ac_input_voltage_phase2", 1320, 1)
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self.struct.add_decimal_field("ac_input_voltage_phase3", 1326, 1)
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self.struct.add_decimal_field("ac_input_current_phase1", 1315, 1)
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self.struct.add_decimal_field("ac_input_current_phase2", 1321, 1)
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self.struct.add_decimal_field("ac_input_current_phase3", 1327, 1)
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# EP600 AC Output
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self.struct.add_decimal_field("ac_output_frequency", 1500, 1)
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self.struct.add_decimal_field("ac_output_voltage_phase1", 1511, 1)
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self.struct.add_decimal_field("ac_output_voltage_phase2", 1518, 1)
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self.struct.add_decimal_field("ac_output_voltage_phase3", 1525, 1)
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self.struct.add_uint_field("ac_output_power_phase1", 1510)
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self.struct.add_uint_field("ac_output_power_phase2", 1517)
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self.struct.add_uint_field("ac_output_power_phase3", 1524)
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self.struct.add_decimal_field("ac_output_current_phase1", 1512, 1)
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self.struct.add_decimal_field("ac_output_current_phase2", 1519, 1)
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self.struct.add_decimal_field("ac_output_current_phase3", 1526, 1)
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# Testing
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# for i in range(0, 10):
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# self.struct.add_decimal_field("testing"+str(i), 1520+i, 1)
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super().__init__(device.address, device.type, device.sn)
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self._parent = device
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@property
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def polling_commands(self) -> List[ReadHoldingRegisters]:
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if self.type == "EP600":
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return [
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ReadHoldingRegisters(100, 62),
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ReadHoldingRegisters(1228, 19),
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ReadHoldingRegisters(1300, 28),
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ReadHoldingRegisters(1500, 27),
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ReadHoldingRegisters(2022, 6),
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ReadHoldingRegisters(2213, 4),
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# Battery
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ReadHoldingRegisters(6101, 7),
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ReadHoldingRegisters(6175, 11),
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# Testing
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# ReadHoldingRegisters(100, 62),
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# ReadHoldingRegisters(1100, 51),
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# ReadHoldingRegisters(1200, 80),
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# ReadHoldingRegisters(1300, 31),
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# ReadHoldingRegisters(1400, 48),
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# ReadHoldingRegisters(1500, 30),
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# ReadHoldingRegisters(2000, 89),
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# ReadHoldingRegisters(2200, 41),
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# ReadHoldingRegisters(2300, 36),
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# ReadHoldingRegisters(6000, 32),
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# ReadHoldingRegisters(6100, 100),
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# ReadHoldingRegisters(6300, 100),
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]
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return self._parent.polling_commands
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@property
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def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
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return self._parent.pack_logging_commands
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@property
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def logging_commands(self) -> List[ReadHoldingRegisters]:
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return self._parent.logging_commands
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@property
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def pack_logging_commands(self) -> List[ReadHoldingRegisters]:
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return self._parent.pack_logging_commands
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@property
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def writable_ranges(self) -> List[range]:
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return self._parent.writable_ranges
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class PollingCoordinator(DataUpdateCoordinator):
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"""Polling coordinator."""
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def __init__(self, hass: HomeAssistant, address, device_name: str):
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"""Initialize coordinator."""
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super().__init__(
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hass,
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_LOGGER,
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name="Bluetti polling coordinator",
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update_interval=timedelta(seconds=20),
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)
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self._address = address
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self.notify_future = None
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self.current_command = None
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self.notify_response = bytearray()
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bluetti_device = build_device(address, device_name)
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# Add or modify device fields
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self.bluetti_device = DummyDevice(bluetti_device)
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async def _async_update_data(self):
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"""Fetch data from API endpoint.
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This is the place to pre-process the data to lookup tables
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so entities can quickly look up their data.
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"""
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self.logger.debug("Polling data")
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device = bluetooth.async_ble_device_from_address(self.hass, self._address)
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if device is None:
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self.logger.error("Device %s not available", self._address)
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return None
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if self.bluetti_device is None:
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self.logger.error("Device type for %s not found", self._address)
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return None
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# Polling
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client = BleakClient(device)
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parsed_data: dict = {}
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try:
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async with async_timeout.timeout(15):
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await client.connect()
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await client.start_notify(
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BluetoothClient.NOTIFY_UUID, self._notification_handler
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)
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for command in self.bluetti_device.polling_commands:
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try:
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# Prepare to make request
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self.current_command = command
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self.notify_future = self.hass.loop.create_future()
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self.notify_response = bytearray()
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# Make request
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self.logger.debug("Requesting %s", command)
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await client.write_gatt_char(
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BluetoothClient.WRITE_UUID, bytes(command)
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)
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# Wait for response
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res = await asyncio.wait_for(
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self.notify_future, timeout=BluetoothClient.RESPONSE_TIMEOUT
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)
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# Process data
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self.logger.debug("Got %s bytes", len(res))
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response = cast(bytes, res)
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body = command.parse_response(response)
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parsed = self.bluetti_device.parse(
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command.starting_address, body
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)
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self.logger.debug("Parsed data: %s", parsed)
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parsed_data.update(parsed)
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except TimeoutError:
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self.logger.error(
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"Polling timed out (address: %s)", self._address
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)
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except ParseError:
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self.logger.warning("Got a parse exception...")
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except ModbusError as err:
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self.logger.warning(
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"Got an invalid request error for %s: %s",
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command,
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err,
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)
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except (BadConnectionError, BleakError) as err:
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self.logger.warning(
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"Needed to disconnect due to error: %s", err
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)
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except TimeoutError:
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self.logger.error("Polling timed out for device %s", self._address)
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return None
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except BleakError as err:
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self.logger.error("Bleak error: %s", err)
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return None
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finally:
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await client.disconnect()
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# Pass data back to sensors
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return parsed_data
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def _notification_handler(self, _sender: int, data: bytearray):
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"""Handle bt data."""
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# Ignore notifications we don't expect
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if not self.notify_future or self.notify_future.done():
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return
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# If something went wrong, we might get weird data.
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if data == b"AT+NAME?\r" or data == b"AT+ADV?\r":
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err = BadConnectionError("Got AT+ notification")
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self.notify_future.set_exception(err)
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return
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# Save data
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self.notify_response.extend(data)
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if len(self.notify_response) == self.current_command.response_size():
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if self.current_command.is_valid_response(self.notify_response):
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self.notify_future.set_result(self.notify_response)
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else:
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self.notify_future.set_exception(ParseError("Failed checksum"))
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elif self.current_command.is_exception_response(self.notify_response):
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# We got a MODBUS command exception
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msg = f"MODBUS Exception {self.current_command}: {self.notify_response[2]}"
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self.notify_future.set_exception(ModbusError(msg))
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