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Add BLE lifecycle pause mechanism for memory mgmt

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Introduces a global pause flag to temporarily block BLE stack auto-start during large memory allocations (e.g., in EPUB rendering). Also adds auto-restart logic for BLE scanning when device list is empty, and extensive debug logging for BLE scan lifecycle troubleshooting.
This commit is contained in:
Justin Mitchell
2026-06-30 16:31:54 -04:00
parent 988652513a
commit c463da994e
10 changed files with 77 additions and 11 deletions
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src/main.cpp
+25 -7
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@@ -496,16 +496,34 @@ void setup() {
void updateBluetoothLifecycle() {
const bool wanted =
SETTINGS.bluetoothEnabled && activityManager.bluetoothShouldBeActive() && WiFi.getMode() == WIFI_MODE_NULL;
if (wanted && !BleHid.isRunning() && bleinput::lifecyclePaused()) return;
if (wanted && !BleHid.isRunning()) {
bleinput::ensureStarted();
// Single place BLE starts for normal use (reader entry, BT toggled on, etc.), so the
// "BT Connecting..." popup shows uniformly. Then clear it with a ghost-cleanup (HALF)
// refresh so a grayscale reader page doesn't ghost over the popup.
bleinput::showConnectingUntilLinked(renderer, mappedInputManager);
activityManager.requestGhostCleanup();
activityManager.requestUpdate();
LOG_INF("BLELC", "start requested enabled=%u reader=%d settings=%d wifi=%d paired=%u heap=%u maxAlloc=%u",
SETTINGS.bluetoothEnabled, activityManager.isReaderActivity(), activityManager.currentKeepsBluetoothAlive(),
WiFi.getMode(), BleHid.pairedCount(), ESP.getFreeHeap(), ESP.getMaxAllocHeap());
RenderLock renderLock;
if (!bleinput::ensureStarted()) {
LOG_ERR("BLELC", "start failed heap=%u maxAlloc=%u", ESP.getFreeHeap(), ESP.getMaxAllocHeap());
return;
}
LOG_INF("BLELC", "started paired=%u heap=%u maxAlloc=%u", BleHid.pairedCount(), ESP.getFreeHeap(),
ESP.getMaxAllocHeap());
HalPowerManager::Lock powerLock;
const bool showReconnectPopup =
activityManager.isReaderActivity() && !activityManager.currentKeepsBluetoothAlive() && BleHid.pairedCount() > 0;
if (showReconnectPopup) {
// Single place BLE starts for reader reconnect. Then clear it with a
// ghost-cleanup (HALF) refresh so a grayscale page doesn't ghost over the
// popup.
bleinput::showConnectingUntilLinked(renderer, mappedInputManager);
activityManager.requestGhostCleanup();
activityManager.requestUpdate();
}
} else if (!wanted && BleHid.isRunning()) {
LOG_INF("BLELC", "stop requested enabled=%u active=%d wifi=%d heap=%u maxAlloc=%u", SETTINGS.bluetoothEnabled,
activityManager.bluetoothShouldBeActive(), WiFi.getMode(), ESP.getFreeHeap(), ESP.getMaxAllocHeap());
bleinput::stop();
LOG_INF("BLELC", "stopped heap=%u maxAlloc=%u", ESP.getFreeHeap(), ESP.getMaxAllocHeap());
}
}