Implemented resend of whole requests

lib/Hoymiles/src/HoymilesRadio.cpp

@@ -86,9 +86,13 @@ void HoymilesRadio::loop()
         if (nullptr != inv) {
             uint8_t verifyResult = inv->verifyAllFragments();
             if (verifyResult == 255) {
-                Serial.println(F("Should Retransmit whole thing"));
-                // todo: irgendwas tun wenn garnichts ankam....
+                if (currentTransaction.sendCount < MAX_RESEND_COUNT) {
+                    Serial.println(F("Nothing received, resend whole request"));
+                    sendEsbPacket(currentTransaction.target, currentTransaction.mainCmd, currentTransaction.subCmd, currentTransaction.payload, currentTransaction.len, currentTransaction.timeout, true);
+                } else {
+                    Serial.println(F("Nothing received, resend count exeeded"));
                     _busyFlag = false;
+                }
 
             } else if (verifyResult == 254) {
                 Serial.println(F("Retransmit timeout"));
@@ -208,6 +212,11 @@ void HoymilesRadio::sendEsbPacket(serial_u target, uint8_t mainCmd, uint8_t subC
     static uint8_t txBuffer[MAX_RF_PAYLOAD_SIZE];
 
     if (!resend) {
+        currentTransaction.sendCount = 0;
+    } else {
+        currentTransaction.sendCount++;
+    }
+
     memset(txBuffer, 0, MAX_RF_PAYLOAD_SIZE);
 
     txBuffer[0] = mainCmd;
@@ -217,7 +226,13 @@ void HoymilesRadio::sendEsbPacket(serial_u target, uint8_t mainCmd, uint8_t subC
 
     memcpy(&txBuffer[10], payload, len);
     txBuffer[10 + len] = crc8(txBuffer, 10 + len);
-    }
+
+    currentTransaction.mainCmd = mainCmd;
+    currentTransaction.target = target;
+    currentTransaction.subCmd = subCmd;
+    memcpy(currentTransaction.payload, payload, len);
+    currentTransaction.len = len;
+    currentTransaction.timeout = timeout;
 
     _radio->stopListening();
     _radio->setChannel(getTxNxtChannel());

lib/Hoymiles/src/HoymilesRadio.h

@@ -11,6 +11,8 @@
 // number of fragments hold in buffer
 #define FRAGMENT_BUFFER_SIZE 30
 
+#define MAX_RESEND_COUNT 3
+
 class HoymilesRadio {
 public:
     void init();
@@ -55,4 +57,6 @@ private:
     serial_u _activeSerial;
 
     bool _busyFlag = false;
+
+    inverter_transaction_t currentTransaction;
 };

lib/Hoymiles/src/types.h

@@ -14,3 +14,13 @@ typedef struct {
     uint8_t fragment[MAX_RF_PAYLOAD_SIZE];
     uint8_t len;
 } fragment_t;
+
+typedef struct {
+    serial_u target;
+    uint8_t mainCmd;
+    uint8_t subCmd;
+    uint8_t payload[MAX_RF_PAYLOAD_SIZE];
+    uint8_t len;
+    uint32_t timeout;
+    uint8_t sendCount;
+} inverter_transaction_t;