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feat: switch firmware updates to bootloader OTA

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This commit is contained in:
Yandrik
2026-04-29 18:02:48 +02:00
parent b673c9100d
commit 06834a0cc0
7 changed files with 781 additions and 1097 deletions
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114
lib/service/shifter_service.dart
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@ -10,29 +10,15 @@ final _log = Logger('ShifterService');
class ShifterService {
ShifterService({
BluetoothController? bluetooth,
required BluetoothController bluetooth,
required this.buttonDeviceId,
DfuPreflightBluetoothAdapter? dfuPreflightBluetooth,
}) : _bluetooth = bluetooth,
_dfuPreflightBluetooth =
dfuPreflightBluetooth ?? _BluetoothDfuPreflightAdapter(bluetooth!) {
if (bluetooth == null && dfuPreflightBluetooth == null) {
throw ArgumentError(
'Either bluetooth or dfuPreflightBluetooth must be provided.',
);
}
}
}) : _bluetooth = bluetooth;
final BluetoothController? _bluetooth;
final BluetoothController _bluetooth;
final String buttonDeviceId;
final DfuPreflightBluetoothAdapter _dfuPreflightBluetooth;
BluetoothController get _requireBluetooth {
final bluetooth = _bluetooth;
if (bluetooth == null) {
throw StateError('Bluetooth controller is not available.');
}
return bluetooth;
return _bluetooth;
}
final StreamController<CentralStatus> _statusController =
@ -243,72 +229,6 @@ class ShifterService {
);
}
Future<Result<DfuPreflightResult>> runDfuPreflight({
int requestedMtu = universalShifterDfuPreferredMtu,
}) async {
final currentConnection = _dfuPreflightBluetooth.currentConnectionState;
final connectionStatus = currentConnection.$1;
final connectedDeviceId = currentConnection.$2;
if (connectionStatus != ConnectionStatus.connected ||
connectedDeviceId == null) {
return Ok(
DfuPreflightResult.failed(
requestedMtu: requestedMtu,
failureReason: DfuPreflightFailureReason.deviceNotConnected,
message:
'No button connection is active. Connect the target button, then retry the firmware update.',
),
);
}
if (connectedDeviceId != buttonDeviceId) {
return Ok(
DfuPreflightResult.failed(
requestedMtu: requestedMtu,
failureReason: DfuPreflightFailureReason.wrongConnectedDevice,
message:
'Connected to a different button ($connectedDeviceId). Reconnect to $buttonDeviceId before starting the firmware update.',
),
);
}
final mtuResult = await _dfuPreflightBluetooth.requestMtuAndGetValue(
buttonDeviceId,
mtu: requestedMtu,
);
if (mtuResult.isErr()) {
return Ok(
DfuPreflightResult.failed(
requestedMtu: requestedMtu,
failureReason: DfuPreflightFailureReason.mtuRequestFailed,
message:
'Could not negotiate BLE MTU for DFU. Move closer to the button and retry. Details: ${mtuResult.unwrapErr()}',
),
);
}
final negotiatedMtu = mtuResult.unwrap();
if (negotiatedMtu < universalShifterDfuMinimumMtu) {
return Ok(
DfuPreflightResult.failed(
requestedMtu: requestedMtu,
negotiatedMtu: negotiatedMtu,
failureReason: DfuPreflightFailureReason.mtuTooLow,
message:
'Negotiated MTU $negotiatedMtu is too small for 64-byte DFU frames. Need at least $universalShifterDfuMinimumMtu bytes MTU (64-byte frame + $universalShifterAttWriteOverheadBytes-byte ATT overhead). Reconnect and retry.',
),
);
}
return Ok(
DfuPreflightResult.ready(
requestedMtu: requestedMtu,
negotiatedMtu: negotiatedMtu,
),
);
}
void startStatusNotifications() {
if (_statusSubscription != null) {
return;
@ -369,32 +289,6 @@ class ShifterService {
}
}
abstract interface class DfuPreflightBluetoothAdapter {
(ConnectionStatus, String?) get currentConnectionState;
Future<Result<int>> requestMtuAndGetValue(
String deviceId, {
required int mtu,
});
}
class _BluetoothDfuPreflightAdapter implements DfuPreflightBluetoothAdapter {
const _BluetoothDfuPreflightAdapter(this._bluetooth);
final BluetoothController _bluetooth;
@override
(ConnectionStatus, String?) get currentConnectionState =>
_bluetooth.currentConnectionState;
@override
Future<Result<int>> requestMtuAndGetValue(
String deviceId, {
required int mtu,
}) {
return _bluetooth.requestMtuAndGetValue(deviceId, mtu: mtu);
}
}
class GearRatiosData {
const GearRatiosData({
required this.ratios,