Added Zephyr settings and basic device in subsys. (#697)

* Added Zephyr settings subsys to enable storing of BACnet values according to BACnet object property value path. * Added BACnet Basic features to enable basic samples. Refactored the zephyr BACnet profile B-SS sample to use BACnet basic subsys.
2024-07-19 17:12:20 -05:00
parent 90714c094c
commit 1e889b633c
33 changed files with 3400 additions and 213 deletions
@@ -0,0 +1,101 @@
+/**
+ * @file
+ * @brief The BACnet/IPv4 datalink tasks for handling the device specific 
+ *  data link layer
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date April 2024
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+/* BACnet definitions */
+#include "bacnet/bacdef.h"
+/* BACnet library API */
+#include "bacnet/basic/object/netport.h"
+#include "bacnet/basic/bbmd/h_bbmd.h"
+#include "bacnet/datalink/bip.h"
+#include "bacnet/datalink/bvlc.h"
+#include "bacnet/datalink/datalink.h"
+/* me! */
+#include "bacnet_basic/bacnet_port_ipv4.h"
+
+#if defined(BACDL_BIP)
+
+/* timer used to renew Foreign Device Registration */
+static uint16_t BBMD_Timer_Seconds;
+static uint16_t BBMD_TTL_Seconds = 60000;
+static BACNET_IP_ADDRESS BBMD_Address;
+
+/**
+ * @brief Initialize the datalink network port
+ * @param ttl_seconds [in] The time-to-live in seconds for the Foreign Device Registration
+ * @param bbmd_address [in] The address of the BBMD
+  */
+void bacnet_port_ipv4_foreign_device_init(
+    const uint16_t ttl_seconds,
+    const BACNET_IP_ADDRESS *bbmd_address)
+{
+    BBMD_TTL_Seconds = ttl_seconds;
+    if (bbmd_address) {
+        memcpy(&BBMD_Address, bbmd_address, sizeof(BACNET_IP_ADDRESS));
+    }
+}
+
+/**
+ * @brief Renew the Foreign Device Registration
+ */
+void bacnet_port_ipv4_task(uint16_t elapsed_seconds)
+{
+    if (BBMD_Timer_Seconds) {
+        if (BBMD_Timer_Seconds <= elapsed_seconds) {
+            BBMD_Timer_Seconds = 0;
+        } else {
+            BBMD_Timer_Seconds -= elapsed_seconds;
+        }
+        if (BBMD_Timer_Seconds == 0) {
+            if (BBMD_Address.port > 0) {
+                (void)bvlc_register_with_bbmd(&BBMD_Address,
+                                                BBMD_TTL_Seconds);
+            }
+            BBMD_Timer_Seconds = (uint16_t)BBMD_TTL_Seconds;
+        }
+    }
+}
+
+/**
+ * Initialize the network port object.
+*/
+bool bacnet_port_ipv4_init(void)
+{
+    const uint32_t instance = 1;
+    BACNET_IP_ADDRESS addr = { 0 };
+    uint8_t prefix = 0;
+
+    if (!bip_init(NULL)) {
+        return false;
+    }
+    Network_Port_Object_Instance_Number_Set(0, instance);
+    Network_Port_Name_Set(instance, "BACnet/IP Port");
+    Network_Port_Type_Set(instance, PORT_TYPE_BIP);
+    bip_get_addr(&addr);
+    prefix = bip_get_subnet_prefix();
+    Network_Port_BIP_Port_Set(instance, addr.port);
+    Network_Port_IP_Address_Set(instance, addr.address[0], addr.address[1],
+                                addr.address[2], addr.address[3]);
+    Network_Port_IP_Subnet_Prefix_Set(instance, prefix);
+    Network_Port_Link_Speed_Set(instance, 0.0);
+    /* common NP data */
+    Network_Port_Reliability_Set(instance, RELIABILITY_NO_FAULT_DETECTED);
+    Network_Port_Out_Of_Service_Set(instance, false);
+    Network_Port_Quality_Set(instance, PORT_QUALITY_UNKNOWN);
+    Network_Port_APDU_Length_Set(instance, MAX_APDU);
+    Network_Port_Network_Number_Set(instance, 0);
+    /* last thing - clear pending changes - we don't want to set these
+       since they are already set */
+    Network_Port_Changes_Pending_Set(instance, false);
+
+    return true;
+}
+#endif