Bug fixes:

Extented driver enabled trig CCA backoff if driver return busy

Wi-sun fixed channel allocaion random resolution fix.

Change-Id: Ifa4d9310643d64a647405bf41b9617af72443ed9

Author: Juha Heiskanen

source/6LoWPAN/ws/ws_bootstrap.c

@@ -270,7 +270,7 @@ static int8_t ws_fhss_discovery_configure(protocol_interface_info_entry_t *cur)
     fhss_configuration.ws_channel_function = WS_FIXED_CHANNEL;
     fhss_configuration.fhss_bc_dwell_interval = 0;
     fhss_configuration.fhss_broadcast_interval = 0;
-    cur->ws_info->hopping_schdule.fixed_channel = randLIB_get_random_in_range(0,cur->ws_info->hopping_schdule.number_of_channels);
+    cur->ws_info->hopping_schdule.fixed_channel = randLIB_get_random_in_range(0,cur->ws_info->hopping_schdule.number_of_channels - 1);
     memset(fhss_configuration.channel_mask, 0, sizeof(uint32_t) * 8);
     channel_list_set_channel(fhss_configuration.channel_mask, cur->ws_info->hopping_schdule.fixed_channel, true);
 
@@ -1516,7 +1516,7 @@ static void ws_bootstrap_event_handler(arm_event_s *event)
         if (cur->bootsrap_mode == ARM_NWK_BOOTSRAP_MODE_6LoWPAN_BORDER_ROUTER) {
             tr_debug("Border router start network");
             // Randomize fixed channel. Only used if channel plan is fixed
-            cur->ws_info->hopping_schdule.fixed_channel = randLIB_get_random_in_range(0,cur->ws_info->hopping_schdule.number_of_channels);
+            cur->ws_info->hopping_schdule.fixed_channel = randLIB_get_random_in_range(0,cur->ws_info->hopping_schdule.number_of_channels - 1);
             cur->ws_info->network_pan_id = randLIB_get_random_in_range(0,0xfffd);
             cur->ws_info->pan_information.pan_size = 0;
             cur->ws_info->pan_information.pan_version = randLIB_get_random_in_range(0,0xffff);

source/MAC/IEEE802_15_4/mac_mcps_sap.c

@@ -1819,9 +1819,12 @@ static int8_t mcps_pd_data_cca_trig(protocol_interface_rf_mac_setup_s *rf_ptr, m
         }
         mac_pd_sap_set_phy_tx_time(rf_ptr, buffer->tx_time, cca_enabled);
         if (mac_plme_cca_req(rf_ptr) != 0) {
-            rf_ptr->macTxProcessActive = false;
-            rf_ptr->mac_ack_tx_active = false;
-            return -1;
+
+            if (buffer->fcf_dsn.frametype == MAC_FRAME_ACK) {
+                rf_ptr->macTxProcessActive = false;
+                return -1;
+            }
+            mac_csma_backoff_start(rf_ptr);
         }
     } else {
         timer_mac_start(rf_ptr, MAC_TIMER_CCA, (uint16_t)(buffer->tx_time / 50));

source/MAC/IEEE802_15_4/mac_pd_sap.c

@@ -64,7 +64,7 @@ static uint16_t mac_csma_backoff_period_convert_to50us(uint8_t random, uint8_t b
     return (random * backoff_period_in_10us) / 5;
 }
 
-static void mac_csma_backoff_start(protocol_interface_rf_mac_setup_s *rf_mac_setup)
+void mac_csma_backoff_start(protocol_interface_rf_mac_setup_s *rf_mac_setup)
 {
     uint8_t backoff = mac_csma_random_backoff_get(rf_mac_setup);
     uint16_t backoff_slots = mac_csma_backoff_period_convert_to50us(backoff, rf_mac_setup->backoff_period_in_10us);

source/MAC/IEEE802_15_4/mac_pd_sap.h

@@ -48,6 +48,8 @@ int8_t mac_pd_sap_data_cb(void *identifier, struct arm_phy_sap_msg_s *message);
 void mac_csma_param_init(struct protocol_interface_rf_mac_setup *rf_mac_setup);
 
 uint32_t mac_csma_backoff_get(struct protocol_interface_rf_mac_setup *rf_mac_setup);
+
+void mac_csma_backoff_start(struct protocol_interface_rf_mac_setup *rf_mac_setup);
 /**
  * Run Mac data interface state Machine.
  *

test/nanostack/unittest/stub/mac_pd_sap_stub.c

@@ -73,3 +73,8 @@ uint32_t mac_csma_backoff_get(protocol_interface_rf_mac_setup_s *rf_mac_setup)
     return 960;
 }
 
+void mac_csma_backoff_start(protocol_interface_rf_mac_setup_s *rf_mac_setup)
+{
+
+}
+