Jannis
dcc528b96a
Root cause: 3 BMS devices fighting for 3 ESPHome proxy connection slots simultaneously, causing 80% timeout failures and 22s+ poll times. Fixes: - Add shared asyncio.Lock so only one BMS polls at a time — eliminates proxy slot contention entirely - Pass ble_device_callback to establish_connection so retry attempts get a fresh BLEDevice (handles proxy path changes) - Reduce command timeout 5s -> 3s, retries 3 -> 2 (BMS responds in <200ms when connection is clean) - Reduce establish_connection max_attempts 3 -> 2 (fail fast, retry next cycle instead of blocking 25s) - Fixed poll timeout to 15s (was poll_interval-5=25s) Expected: polls complete in 2-5s instead of 22s, ~95%+ success rate. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
"""Xiaoxiang Smart BMS — Home Assistant integration."""
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from __future__ import annotations
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import asyncio
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from homeassistant.components.bluetooth import (
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BluetoothChange,
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BluetoothScanningMode,
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BluetoothServiceInfoBleak,
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async_register_callback,
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)
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from homeassistant.components.bluetooth.match import ADDRESS, BluetoothCallbackMatcher
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.core import HomeAssistant, callback
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from .const import CONF_ADDRESS, CONF_POLL_INTERVAL, DEFAULT_POLL_INTERVAL, DOMAIN
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from .coordinator import BmsCoordinator
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PLATFORMS = ["sensor", "binary_sensor", "number", "select"]
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async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
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"""Set up the BMS integration from a config entry."""
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address = entry.data[CONF_ADDRESS]
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poll_interval = entry.options.get(CONF_POLL_INTERVAL, DEFAULT_POLL_INTERVAL)
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hass.data.setdefault(DOMAIN, {})
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# Shared BLE lock — only one BMS connects at a time to avoid
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# ESPHome proxy connection slot exhaustion with multiple devices.
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if "_ble_lock" not in hass.data[DOMAIN]:
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hass.data[DOMAIN]["_ble_lock"] = asyncio.Lock()
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ble_lock = hass.data[DOMAIN]["_ble_lock"]
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coordinator = BmsCoordinator(
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hass, address, poll_interval,
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name=entry.title,
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ble_lock=ble_lock,
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)
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# Keep the coordinator's BLE device reference fresh via advertisement callback.
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# This avoids stale transport paths when ESPHome proxies cycle.
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@callback
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def _async_update_ble(
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service_info: BluetoothServiceInfoBleak,
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change: BluetoothChange,
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) -> None:
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coordinator._ble_device = service_info.device
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entry.async_on_unload(
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async_register_callback(
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hass,
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_async_update_ble,
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BluetoothCallbackMatcher({ADDRESS: address}),
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BluetoothScanningMode.PASSIVE,
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)
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)
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await coordinator.async_setup()
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await coordinator.async_config_entry_first_refresh()
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hass.data[DOMAIN][entry.entry_id] = coordinator
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await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
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entry.async_on_unload(entry.add_update_listener(_async_update_listener))
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return True
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async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
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"""Unload the BMS integration."""
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unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
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if unload_ok:
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coordinator: BmsCoordinator = hass.data[DOMAIN].pop(entry.entry_id)
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await coordinator.async_teardown()
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return unload_ok
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async def _async_update_listener(hass: HomeAssistant, entry: ConfigEntry) -> None:
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"""Reload the entry when options are changed."""
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await hass.config_entries.async_reload(entry.entry_id)
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