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134 changes: 134 additions & 0 deletions
134
android/app/src/main/kotlin/io/rebble/cobble/bluetooth/classic/SocketSerialDriver.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package io.rebble.cobble.bluetooth.classic | ||
|
|
||
| import io.rebble.cobble.bluetooth.BlueIO | ||
| import io.rebble.cobble.bluetooth.PebbleBluetoothDevice | ||
| import io.rebble.cobble.bluetooth.SingleConnectionStatus | ||
| import io.rebble.cobble.bluetooth.readFully | ||
| import io.rebble.cobble.datasources.IncomingPacketsListener | ||
| import io.rebble.libpebblecommon.ProtocolHandler | ||
| import io.rebble.libpebblecommon.packets.QemuPacket | ||
| import io.rebble.libpebblecommon.protocolhelpers.ProtocolEndpoint | ||
| import kotlinx.coroutines.* | ||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.flow | ||
| import timber.log.Timber | ||
| import java.io.IOException | ||
| import java.io.InputStream | ||
| import java.io.OutputStream | ||
| import java.net.Socket | ||
| import java.nio.ByteBuffer | ||
| import java.nio.ByteOrder | ||
| import kotlin.coroutines.coroutineContext | ||
|
|
||
| /** | ||
| * Used for testing app via a qemu pebble | ||
| */ | ||
| class SocketSerialDriver( | ||
| private val protocolHandler: ProtocolHandler, | ||
| private val incomingPacketsListener: IncomingPacketsListener | ||
| ): BlueIO { | ||
|
|
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| private var inputStream: InputStream? = null | ||
| private var outputStream: OutputStream? = null | ||
|
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| private suspend fun readLoop() { | ||
| try { | ||
| val buf: ByteBuffer = ByteBuffer.allocate(8192) | ||
|
|
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| while (coroutineContext.isActive) { | ||
| val inputStream = inputStream ?: break | ||
| /* READ PACKET META */ | ||
| inputStream.readFully(buf, 0, 4) | ||
|
|
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| val qemuPacket = QemuPacket.deserialize(buf.array().asUByteArray()) | ||
| if (qemuPacket.protocol.get() != UShort.MAX_VALUE) { | ||
| Timber.d("QEMU packet ${qemuPacket.protocol.get()}") | ||
| } | ||
| val sppPacket = qemuPacket as? QemuPacket.QemuSPP ?: continue | ||
|
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| buf.rewind() | ||
| inputStream.readFully(buf, 4, sppPacket.length.get().toInt()) | ||
| buf.rewind() | ||
|
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| val metBuf = ByteBuffer.wrap(buf.array()) | ||
| metBuf.order(ByteOrder.BIG_ENDIAN) | ||
| val length = metBuf.short | ||
| val endpoint = metBuf.short | ||
| if (length < 0 || length > buf.capacity()) { | ||
| Timber.w("Invalid length in packet (EP ${endpoint.toUShort()}): got ${length.toUShort()}") | ||
| continue | ||
| } | ||
|
|
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| Timber.d("Got packet: EP ${ProtocolEndpoint.getByValue(endpoint.toUShort())} | Length ${length.toUShort()}") | ||
|
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| buf.rewind() | ||
| val packet = ByteArray(length.toInt() + 2 * (Short.SIZE_BYTES)) | ||
| buf.get(packet, 0, packet.size) | ||
| incomingPacketsListener.receivedPackets.emit(packet) | ||
| protocolHandler.receivePacket(packet.toUByteArray()) | ||
| } | ||
| } finally { | ||
| Timber.e("Read loop returning") | ||
| try { | ||
| withContext(Dispatchers.IO) { | ||
| inputStream?.close() | ||
| } | ||
| } catch (e: IOException) { | ||
| e.printStackTrace() | ||
| } finally { | ||
| inputStream = null | ||
| } | ||
|
|
||
| try { | ||
| withContext(Dispatchers.IO) { | ||
| outputStream?.close() | ||
| } | ||
| } catch (e: IOException) { | ||
| e.printStackTrace() | ||
| } finally { | ||
| outputStream = null | ||
| } | ||
| } | ||
| } | ||
|
|
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| @FlowPreview | ||
| override fun startSingleWatchConnection(device: PebbleBluetoothDevice): Flow<SingleConnectionStatus> = flow { | ||
| val host = device.address | ||
| coroutineScope { | ||
| emit(SingleConnectionStatus.Connecting(device)) | ||
|
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| val serialSocket = withContext(Dispatchers.IO) { | ||
| Socket(host, 12344) | ||
| } | ||
|
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| delay(8000) | ||
|
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| val sendLoop = launch { | ||
| protocolHandler.startPacketSendingLoop(::sendPacket) | ||
| } | ||
|
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| inputStream = serialSocket.inputStream | ||
| outputStream = serialSocket.outputStream | ||
|
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| readLoop() | ||
| try { | ||
| withContext(Dispatchers.IO) { | ||
| serialSocket.close() | ||
| } | ||
| } catch (_: IOException) { | ||
| } | ||
| sendLoop.cancel() | ||
| } | ||
| } | ||
|
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| private suspend fun sendPacket(bytes: UByteArray): Boolean { | ||
| //Timber.d("Sending packet of EP ${PebblePacket(bytes.toUByteArray()).endpoint}") | ||
| val qemuPacket = QemuPacket.QemuSPP(bytes) | ||
| val outputStream = outputStream ?: return false | ||
| withContext(Dispatchers.IO) { | ||
| outputStream.write(qemuPacket.serialize().toByteArray()) | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| } |
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