add Microchip MPLAB Harmony support

ctaocrypt/src/asn.c

@@ -285,7 +285,11 @@ time_t pic32_time(time_t* timer)
     if (timer == NULL)
         timer = &localTime;
 
+#ifdef MICROCHIP_MPLAB_HARMONY 
+    sec = TCPIP_SNTP_UTCSecondsGet();
+#else
     sec = SNTPGetUTCSeconds();
+#endif
     *timer = (time_t) sec;
 
     return *timer;

ctaocrypt/src/random.c

@@ -458,18 +458,23 @@ int GenerateSeed(OS_Seed* os, byte* output, word32 sz)
 
 #elif defined(MICROCHIP_PIC32)
 
+#ifndef MICROCHIP_MPLAB_HARMONY
     #include <peripheral/timer.h>
+    #define PIC32_SEED_COUNT _CP0_GET_COUNT
+#else
+    #define PIC32_SEED_COUNT ReadCoreTimer
+#endif
 
 /* uses the core timer, in nanoseconds to seed srand */
 int GenerateSeed(OS_Seed* os, byte* output, word32 sz)
 {
     int i;
-    srand(ReadCoreTimer() * 25);
+    srand(PIC32_SEED_COUNT() * 25);
 
     for (i = 0; i < sz; i++ ) {
         output[i] = rand() % 256;
         if ( (i % 8) == 7)
-            srand(ReadCoreTimer() * 25);
+            srand(PIC32_SEED_COUNT() * 25);
     }
 
     return 0;

cyassl/ctaocrypt/settings.h

@@ -130,8 +130,12 @@
 #ifdef MICROCHIP_TCPIP
     /* include timer, NTP functions */
     #include "system/system_services.h"
+    #ifdef MICROCHIP_MPLAB_HARMONY
+        #include "tcpip/tcpip.h"
+    #else
         #include "tcpip/sntp.h"
     #endif
+#endif
 
 #ifdef MBED
     #define SINGLE_THREADED