Add source & address type for Mode A/C

dump1090.h

@@ -142,6 +142,7 @@ typedef struct rtlsdr_dev rtlsdr_dev_t;
 /* Where did a bit of data arrive from? In order of increasing priority */
 typedef enum {
     SOURCE_INVALID,        /* data is not valid */
+    SOURCE_MODE_AC,        /* A/C message */
     SOURCE_MLAT,           /* derived from mlat */
     SOURCE_MODE_S,         /* data from a Mode S message, no full CRC */
     SOURCE_MODE_S_CHECKED, /* data from a Mode S message with full CRC */
@@ -163,6 +164,8 @@ typedef enum {
     ADDR_TISB_TRACKFILE,  /* TIS-B, Mode A code + track file number */
     ADDR_TISB_OTHER,      /* TIS-B, other address format */
 
+    ADDR_MODE_A,          /* Mode A */
+
     ADDR_UNKNOWN          /* unknown address format */
 } addrtype_t;
 

mode_ac.c

@@ -78,6 +78,8 @@ int ModeAToModeC(unsigned int ModeA)
 //
 void decodeModeAMessage(struct modesMessage *mm, int ModeA)
 {
+    mm->source = SOURCE_MODE_AC;
+    mm->addrtype = ADDR_MODE_A;
     mm->msgtype = 32; // Valid Mode S DF's are DF-00 to DF-31.
     // so use 32 to indicate Mode A/C
 

mode_s.c

@@ -1381,6 +1381,8 @@ static const char *addrtype_to_string(addrtype_t type) {
         return "ADS-R";
     case ADDR_ADSR_OTHER:
         return "ADS-R, other addressing scheme";
+    case ADDR_MODE_A:
+        return "Mode A";
     default:
         return "unknown addressing scheme";
     }