Merge branch 'master' into dev-v2.2

lib/AmsData/include/AmsData.h

@@ -10,7 +10,7 @@ enum AmsType {
     AmsTypeKaifa = 0x02,
     AmsTypeKamstrup = 0x03,
     AmsTypeIskra = 0x08,
-    AmsTypeLandis = 0x09,
+    AmsTypeLandisGyr = 0x09,
     AmsTypeSagemcom = 0x0A,
     AmsTypeLng = 0x0B,
     AmsTypeCustom = 0x88,

lib/AmsDecoder/include/crc.h

@@ -4,6 +4,7 @@
 #include "Arduino.h"
 #include <stdint.h>
 
+uint16_t crc16(const uint8_t* p, int len);
 uint16_t crc16_x25(const uint8_t* p, int len);
 
 #endif

lib/AmsDecoder/src/DsmrParser.cpp

@@ -1,4 +1,7 @@
 #include "DsmrParser.h"
+#include "crc.h"
+#include "hexutils.h"
+#include "lwip/def.h"
 
 int8_t DSMRParser::parse(uint8_t *buf, DataParserContext &ctx, bool verified) {
     uint16_t crcPos = 0;
@@ -14,8 +17,13 @@ int8_t DSMRParser::parse(uint8_t *buf, DataParserContext &ctx, bool verified) {
     if(!reachedEnd) return DATA_PARSE_INCOMPLETE;
     buf[ctx.length+1] = '\0';
     if(crcPos > 0) {
-        // TODO: CRC
-        Serial.printf("CRC: %s\n", buf+crcPos);
+	    uint16_t crc_calc = crc16(buf, crcPos);
+        uint16_t crc = 0x0000;
+        fromHex((uint8_t*) &crc, String((char*) buf+crcPos), 2);
+        crc = ntohs(crc);
+
+        if(crc != crc_calc)
+            return DATA_PARSE_FOOTER_CHECKSUM_ERROR;
     }
     return DATA_PARSE_OK;
 }

lib/AmsDecoder/src/crc.cpp

@@ -10,3 +10,20 @@ uint16_t crc16_x25(const uint8_t* p, int len)
 
 	return (~crc << 8) | (~crc >> 8 & 0xff);
 }
+
+uint16_t crc16 (const uint8_t *p, int len) {
+    uint16_t crc = 0;
+
+    while (len--) {
+		int i;
+		crc ^= *p++;
+		for (i = 0 ; i < 8 ; ++i) {
+			if (crc & 1)
+				crc = (crc >> 1) ^ 0xa001;
+			else
+				crc = (crc >> 1);
+		}    			
+    }
+    
+    return crc;
+}

lib/ClassicUi/html/application.js

@@ -854,7 +854,7 @@ var fetch = function() {
                 $('.jmt').html("Iskra");
                 break;
             case 9:
-                $('.jmt').html("Landis");
+                $('.jmt').html("Landis+Gyr");
                 break;
             case 10:
                 $('.jmt').html("Sagemcom");

lib/ClassicUi/src/AmsWebServer.cpp

@@ -329,7 +329,7 @@ void AmsWebServer::configMeterHtml() {
 		case AmsTypeIskra:
 			manufacturer = F("Iskra");
 			break;
-		case AmsTypeLandis:
+		case AmsTypeLandisGyr:
 			manufacturer = F("Landis+Gyr");
 			break;
 		case AmsTypeSagemcom: