Generate a second class abstraction to support different inverter types in future

lib/Hoymiles/src/Hoymiles.cpp

@@ -27,14 +27,7 @@ void HoymilesClass::loop()
                 Serial.println(iv->serial());
 
                 iv->clearRxFragmentBuffer();
-
-                time_t now;
-                time(&now);
-                if (now > 0) {
-                    _radio->sendTimePacket(iv, now);
-                } else {
-                    Serial.println(F("Cancled. Time not yet synced."));
-                }
+                _radio->sendTimePacket(iv);
             }
 
             if (++inverterPos >= getNumInverters()) {

lib/Hoymiles/src/HoymilesRadio.cpp

@@ -250,29 +250,21 @@ void HoymilesRadio::sendEsbPacket(serial_u target, uint8_t mainCmd, uint8_t subC
     _rxTimeout.set(timeout);
 }
 
-void HoymilesRadio::sendTimePacket(std::shared_ptr<InverterAbstract> iv, time_t ts)
+void HoymilesRadio::sendTimePacket(std::shared_ptr<InverterAbstract> iv)
 {
-    uint8_t payload[16] = { 0 };
+    inverter_transaction_t payload;
+    if (iv->getStatsRequest(&payload)) {
+        serial_u s;
+        s.u64 = iv->serial();
+        _activeSerial.u64 = iv->serial();
 
-    payload[0] = 0x0b;
-    payload[1] = 0x00;
-    u32CpyLittleEndian(&payload[2], ts); // sets the 4 following elements {2, 3, 4, 5}
-    payload[9] = 0x05;
-
-    uint16_t crc = crc16(&payload[0], 14);
-    payload[14] = (crc >> 8) & 0xff;
-    payload[15] = (crc)&0xff;
-
-    serial_u s;
-    s.u64 = iv->serial();
-    _activeSerial.u64 = iv->serial();
-
-    sendEsbPacket(s, 0x15, 0x80, payload, sizeof(payload) / sizeof(uint8_t), 200);
+        sendEsbPacket(s, payload.mainCmd, payload.subCmd, payload.payload, payload.len, payload.timeout);
+    }
 }
 
 void HoymilesRadio::sendRetransmitPacket(uint8_t fragment_id)
 {
-    sendEsbPacket(_activeSerial, 0x15, (uint8_t)(0x80 + fragment_id), 0, 0, 60);
+    sendEsbPacket(_activeSerial, currentTransaction.mainCmd, (uint8_t)(0x80 + fragment_id), 0, 0, 60);
 }
 
 void HoymilesRadio::sendLastPacketAgain()

lib/Hoymiles/src/HoymilesRadio.h

@@ -24,10 +24,12 @@ public:
 
     bool isIdle();
     void sendEsbPacket(serial_u target, uint8_t mainCmd, uint8_t subCmd, uint8_t payload[], uint8_t len, uint32_t timeout, bool resend = false);
-    void sendTimePacket(std::shared_ptr<InverterAbstract> iv, time_t ts);
+    void sendTimePacket(std::shared_ptr<InverterAbstract> iv);
     void sendRetransmitPacket(uint8_t fragment_id);
     void sendLastPacketAgain();
 
+    static void u32CpyLittleEndian(uint8_t dest[], uint32_t src);
+
 private:
     void ARDUINO_ISR_ATTR handleIntr();
     static serial_u convertSerialToRadioId(serial_u serial);
@@ -39,7 +41,6 @@ private:
     void openWritingPipe(serial_u serial);
     bool checkFragmentCrc(fragment_t* fragment);
     void dumpBuf(const char* info, uint8_t buf[], uint8_t len);
-    void u32CpyLittleEndian(uint8_t dest[], uint32_t src);
 
     std::unique_ptr<RF24> _radio;
     uint8_t _rxChLst[5] = { 3, 23, 40, 61, 75 };

lib/Hoymiles/src/inverters/HM_1CH.cpp

@@ -1,7 +1,7 @@
 #include "HM_1CH.h"
 
 HM_1CH::HM_1CH(uint64_t serial)
-    : InverterAbstract(serial) {};
+    : HM_Abstract(serial) {};
 
 bool HM_1CH::isValidSerial(uint64_t serial)
 {

lib/Hoymiles/src/inverters/HM_1CH.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include "InverterAbstract.h"
+#include "HM_Abstract.h"
 
-class HM_1CH : public InverterAbstract {
+class HM_1CH : public HM_Abstract {
 public:
     HM_1CH(uint64_t serial);
     static bool isValidSerial(uint64_t serial);

lib/Hoymiles/src/inverters/HM_2CH.cpp

@@ -1,7 +1,7 @@
 #include "HM_2CH.h"
 
 HM_2CH::HM_2CH(uint64_t serial)
-    : InverterAbstract(serial) {};
+    : HM_Abstract(serial) {};
 
 bool HM_2CH::isValidSerial(uint64_t serial)
 {

lib/Hoymiles/src/inverters/HM_2CH.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include "InverterAbstract.h"
+#include "HM_Abstract.h"
 
-class HM_2CH : public InverterAbstract {
+class HM_2CH : public HM_Abstract {
 public:
     HM_2CH(uint64_t serial);
     static bool isValidSerial(uint64_t serial);

lib/Hoymiles/src/inverters/HM_4CH.cpp

@@ -1,7 +1,7 @@
 #include "HM_4CH.h"
 
 HM_4CH::HM_4CH(uint64_t serial)
-    : InverterAbstract(serial) {};
+    : HM_Abstract(serial) {};
 
 bool HM_4CH::isValidSerial(uint64_t serial)
 {

lib/Hoymiles/src/inverters/HM_4CH.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include "InverterAbstract.h"
+#include "HM_Abstract.h"
 
-class HM_4CH : public InverterAbstract {
+class HM_4CH : public HM_Abstract {
 public:
     HM_4CH(uint64_t serial);
     static bool isValidSerial(uint64_t serial);

lib/Hoymiles/src/inverters/HM_Abstract.cpp

@@ -0,0 +1,31 @@
+#include "HM_Abstract.h"
+#include "HoymilesRadio.h"
+#include "crc.h"
+
+HM_Abstract::HM_Abstract(uint64_t serial)
+    : InverterAbstract(serial) {};
+
+bool HM_Abstract::getStatsRequest(inverter_transaction_t* payload)
+{
+    time_t now;
+    time(&now);
+
+    memset(payload->payload, 0, MAX_RF_PAYLOAD_SIZE);
+
+    payload->mainCmd = 0x15;
+    payload->subCmd = 0x80;
+    payload->timeout = 200;
+    payload->len = 16;
+
+    payload->payload[0] = 0x0b;
+    payload->payload[1] = 0x00;
+
+    HoymilesRadio::u32CpyLittleEndian(&payload->payload[2], now); // sets the 4 following elements {2, 3, 4, 5}
+    payload->payload[9] = 0x05;
+
+    uint16_t crc = crc16(&payload->payload[0], 14);
+    payload->payload[14] = (crc >> 8) & 0xff;
+    payload->payload[15] = (crc)&0xff;
+
+    return now > 0;
+}

lib/Hoymiles/src/inverters/HM_Abstract.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "InverterAbstract.h"
+
+class HM_Abstract : public InverterAbstract {
+public:
+    HM_Abstract(uint64_t serial);
+    bool getStatsRequest(inverter_transaction_t* payload);
+};

lib/Hoymiles/src/inverters/InverterAbstract.h

@@ -111,6 +111,7 @@ public:
     const char* getUnit(uint8_t channel, uint8_t fieldId);
     const char* getName(uint8_t channel, uint8_t fieldId);
 
+    virtual bool getStatsRequest(inverter_transaction_t* payload) = 0;
     uint32_t getLastStatsUpdate();
 
 private: