WS: Use Tack in Ack wait time

Author: Jarkko Paso

source/6LoWPAN/ws/ws_common.c

@@ -182,7 +182,7 @@ int8_t ws_common_regulatory_domain_config(protocol_interface_info_entry_t *cur)
     set_request.value_size = sizeof(phy_rf_channel_configuration_s);
     cur->mac_api->mlme_req(cur->mac_api, MLME_SET, &set_request);
     // Set Ack wait duration
-    uint16_t ack_wait_symbols = WS_ACK_WAIT_SYMBOLS;
+    uint16_t ack_wait_symbols = WS_ACK_WAIT_SYMBOLS + (WS_TACK_MAX_MS*(rf_configs.datarate/1000));
     set_request.attr = macAckWaitDuration;
     set_request.value_pointer = &ack_wait_symbols;
     set_request.value_size = sizeof(ack_wait_symbols);

source/6LoWPAN/ws/ws_common_defines.h

@@ -220,6 +220,11 @@ typedef struct ws_bs_ie {
  */
 #define WS_ACK_WAIT_SYMBOLS    800
 
+/*
+ * Tack max time in milliseconds.
+ */
+#define WS_TACK_MAX_MS 5
+
 /* Default FHSS timing information
  *
  */