dash/ble: remove retries for connect for now

It's easier to debug for now if we stop on the first issue/error

omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/OmnipodDashManagerImpl.kt

@@ -49,7 +49,8 @@ class OmnipodDashManagerImpl @Inject constructor(
 
     private val observeConnectToPod: Observable<PodEvent>
         get() = Observable.defer {
-            bleManager.connect().retryWithBackoff(retries = 2, delay = 3, timeUnit = TimeUnit.SECONDS)
+            bleManager.connect()
+
         } // TODO are these reasonable values?
 
     private fun observeSendProgramBolusCommand(

omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/endecrypt/CryptSequence.kt

@@ -0,0 +1,28 @@
+package info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.session
+
+import java.nio.ByteBuffer
+
+class CryptSequence(var sqn: Long) {
+
+    fun incrementForEapAka():ByteArray {
+        sqn++
+        return ByteBuffer.allocate(8)
+            .putLong(sqn)
+            .array()
+            .copyOfRange(2, 8)
+    }
+
+    fun incrementForEnDecrypt(podReceiving: Boolean):ByteArray{
+        sqn++
+        val ret = ByteBuffer.allocate(8)
+            .putLong(sqn)
+            .array()
+            .copyOfRange(3, 8)
+        if (podReceiving) {
+            ret[0] = (ret[0].toInt() and 127).toByte()
+        } else {
+            ret[0] = (ret[0].toInt() or 128).toByte()
+        }
+        return ret
+    }
+}

omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/driver/comm/session/EapSqn.kt

@@ -0,0 +1,4 @@
+package info.nightscout.androidaps.plugins.pump.omnipod.dash.driver.comm.session
+
+class EapSqn {
+}