Changed ATmega168 port to ATmega328 on Uno R3 with DFR0259 RS485 shield (#784)

* Changed ATmega168 example for ATmega328 on Arduino Uno R3 with DFR0259 RS485 shield. Added ADC interface from BDK port and mapped to some AV objects. Removed MS/TP MAC address DIP switch GPIO and moved MS/TP configuration to AV objects. Added AV units property. Added some Uno R3 Digital Inputs and outputs mapped to some BV. Added AVR EEPROM from BDK port and mapped some non-volatile data including MAC address and max manager and baud rate, device ID and names and description and location.
2024-09-27 14:42:47 -05:00
parent 6e4034a92d
commit 4781582204
60 changed files with 2943 additions and 5661 deletions
@@ -0,0 +1,147 @@
+/**
+ * @brief This module manages the BACnet Application Protocol Data Unit (APDU)
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2007
+ * @copyright SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0
+ */
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+/* BACnet Stack defines - first */
+#include "bacnet/bacdef.h"
+/* BACnet Stack API */
+#include "bacnet/apdu.h"
+#include "bacnet/bacdcode.h"
+#include "bacnet/basic/services.h"
+
+static uint8_t Local_Network_Priority; /* Fixing test 10.1.2 Network priority */
+
+/**
+ * @brief get the local network priority
+ * @return local network priority
+ */
+uint8_t apdu_network_priority(void)
+{
+    return Local_Network_Priority;
+}
+
+/**
+ * @brief set the local network priority
+ * @param net - local network priority
+ */
+void apdu_network_priority_set(uint8_t pri)
+{
+    Local_Network_Priority = pri & 0x03;
+}
+
+bool apdu_service_supported(BACNET_SERVICES_SUPPORTED service_supported)
+{
+    bool status = false;
+
+    if (service_supported == SERVICE_SUPPORTED_READ_PROPERTY) {
+        status = true;
+    }
+    if (service_supported == SERVICE_SUPPORTED_WHO_IS) {
+        status = true;
+    }
+#ifdef WRITE_PROPERTY
+    if (service_supported == SERVICE_SUPPORTED_WRITE_PROPERTY) {
+        status = true;
+    }
+#endif
+
+    return status;
+}
+
+uint16_t apdu_decode_confirmed_service_request(
+    uint8_t *apdu, /* APDU data */
+    uint16_t apdu_len,
+    BACNET_CONFIRMED_SERVICE_DATA *service_data,
+    uint8_t *service_choice,
+    uint8_t **service_request,
+    uint16_t *service_request_len)
+{
+    uint16_t len = 0; /* counts where we are in PDU */
+
+    service_data->segmented_message = (apdu[0] & BIT(3)) ? true : false;
+    service_data->more_follows = (apdu[0] & BIT(2)) ? true : false;
+    service_data->segmented_response_accepted =
+        (apdu[0] & BIT(1)) ? true : false;
+    service_data->max_segs = decode_max_segs(apdu[1]);
+    service_data->max_resp = decode_max_apdu(apdu[1]);
+    service_data->invoke_id = apdu[2];
+    service_data->priority = apdu_network_priority();
+    len = 3;
+    if (service_data->segmented_message) {
+        service_data->sequence_number = apdu[len++];
+        service_data->proposed_window_number = apdu[len++];
+    }
+    *service_choice = apdu[len++];
+    *service_request = &apdu[len];
+    *service_request_len = apdu_len - len;
+
+    return len;
+}
+
+void apdu_handler(
+    BACNET_ADDRESS *src,
+    uint8_t *apdu, /* APDU data */
+    uint16_t apdu_len)
+{
+    BACNET_CONFIRMED_SERVICE_DATA service_data = { 0 };
+    uint8_t service_choice = 0;
+    uint8_t *service_request = NULL;
+    uint16_t service_request_len = 0;
+    uint16_t len = 0; /* counts where we are in PDU */
+
+    if (apdu) {
+        /* PDU Type */
+        switch (apdu[0] & 0xF0) {
+            case PDU_TYPE_CONFIRMED_SERVICE_REQUEST:
+                len = apdu_decode_confirmed_service_request(
+                    &apdu[0], /* APDU data */
+                    apdu_len, &service_data, &service_choice, &service_request,
+                    &service_request_len);
+                if (len == 0) {
+                    /* service data unable to be decoded - simply drop */
+                    break;
+                }
+                if (service_choice == SERVICE_CONFIRMED_READ_PROPERTY) {
+                    handler_read_property(
+                        service_request, service_request_len, src,
+                        &service_data);
+                }
+#ifdef WRITE_PROPERTY
+                else if (service_choice == SERVICE_CONFIRMED_WRITE_PROPERTY) {
+                    handler_write_property(
+                        service_request, service_request_len, src,
+                        &service_data);
+                }
+#endif
+                else {
+                    handler_unrecognized_service(
+                        service_request, service_request_len, src,
+                        &service_data);
+                }
+                (void)len;
+                break;
+            case PDU_TYPE_UNCONFIRMED_SERVICE_REQUEST:
+                service_choice = apdu[1];
+                service_request = &apdu[2];
+                service_request_len = apdu_len - 2;
+                if (service_choice == SERVICE_UNCONFIRMED_WHO_IS) {
+                    handler_who_is(service_request, service_request_len, src);
+                }
+                break;
+            case PDU_TYPE_SIMPLE_ACK:
+            case PDU_TYPE_COMPLEX_ACK:
+            case PDU_TYPE_SEGMENT_ACK:
+            case PDU_TYPE_ERROR:
+            case PDU_TYPE_REJECT:
+            case PDU_TYPE_ABORT:
+            default:
+                break;
+        }
+    }
+    return;
+}