Fix #447: Default AS/AU UplinkDwellTime must be 1

Author: terrillmoore

src/lmic/lmic_as923.c

@@ -77,7 +77,7 @@ static CONST_TABLE(u1_t, maxFrameLens_dwell1)[] = {
 static uint8_t
 LMICas923_getUplinkDwellBit(uint8_t mcmd_txparam) {
         if (mcmd_txparam == 0xFF)
-                return 0;
+                return AS923_INITIAL_TxParam_UplinkDwellTime;
 
         return (mcmd_txparam & MCMD_TxParam_TxDWELL_MASK) != 0;
 }

src/lmic/lmic_au921.c

@@ -67,7 +67,7 @@ static bit_t
 LMICau921_getUplinkDwellBit() {
         // if uninitialized, return default.
         if (LMIC.txParam == 0xFF) {
-                return 0;
+                return AU921_INITIAL_TxParam_UplinkDwellTime;
         }
         return (LMIC.txParam & MCMD_TxParam_TxDWELL_MASK) != 0;
 }

src/lmic/lorabase_as923.h

@@ -93,4 +93,11 @@ enum { AS923_V102_TX_CAP = 100 };		// v1.0.2 allows 100%
 # define AS923_TX_CAP	AS923_V102_TX_CAP
 #endif
 
+// TxParam defaults
+enum {
+        // initial value of UplinkDwellTime before TxParamSetupReq received.
+        AS923_INITIAL_TxParam_UplinkDwellTime = 1,
+        AS923_UPLINK_DWELL_TIME_osticks = sec2osticks(20),
+};
+
 #endif /* _lorabase_as923_h_ */

src/lmic/lorabase_au921.h

@@ -76,6 +76,11 @@ enum {
 enum {
         AU921_TX_EIRP_MAX_DBM = 30      // 30 dBm
 };
+enum {
+        // initial value of UplinkDwellTime before TxParamSetupReq received.
+        AU921_INITIAL_TxParam_UplinkDwellTime = 1,
+        AU921_UPLINK_DWELL_TIME_osticks = sec2osticks(20),
+};
 
 enum { DR_PAGE_AU921 = 0x10 * (LMIC_REGION_au921 - 1) };