Add skeleton for BACnet Command Object

CMakeLists.txt

@@ -38,7 +38,8 @@ set(SOURCES
     src/main.c
     src/port.c
     src/protocol/decode_call.c
-    src/protocol/enum.c)
+    src/protocol/enum.c
+    src/object/command.c)
 
 # build
 project(bacnetd)

src/bacnet.c

@@ -12,6 +12,7 @@
 #include "bacnet.h"
 #include "log.h"
 #include "protocol/decode_call.h"
+#include "object/command.h"
 
 #define REPLY_OK(reply) \
   ei_x_encode_atom(reply, "ok")
@@ -271,6 +272,28 @@ static object_functions_t SUPPORTED_OBJECT_TABLE[] = {
     .Object_Delete = Routed_Multistate_Input_Delete,
     .Object_Timer = NULL,
   },
+  {
+    .Object_Type = OBJECT_COMMAND,
+    .Object_Init = command_init,
+    .Object_Count = command_count,
+    .Object_Index_To_Instance = command_index_to_instance,
+    .Object_Valid_Instance = command_valid_instance,
+    .Object_Name = command_object_name,
+    .Object_Read_Property = command_read_property,
+    .Object_Write_Property = command_write_property,
+    .Object_RPM_List = command_property_lists,
+    .Object_RR_Info = NULL,
+    .Object_Iterator = NULL,
+    .Object_Value_List = NULL,
+    .Object_COV = NULL,
+    .Object_COV_Clear = NULL,
+    .Object_Intrinsic_Reporting = NULL,
+    .Object_Add_List_Element = NULL,
+    .Object_Remove_List_Element = NULL,
+    .Object_Create = NULL,
+    .Object_Delete = NULL,
+    .Object_Timer = NULL,
+  },
 };
 
 static int init_service_handlers()

src/object/command.c

@@ -0,0 +1,109 @@
+#include <bacnet/bacdef.h>
+#include <bacnet/rp.h>
+#include <bacnet/wp.h>
+
+/**
+ * @brief Attempts to set required, optional and proprietary command properties.
+ *
+ * @note All params are sentinel terminated list of integers.
+ * @param required - BACnet required properties for a Command object.
+ * @param optional - BACnet optional properties for a Command object.
+ * @param proprietary - BACnet proprietary properties for a Command object.
+ */
+void command_property_lists(
+  const int **required,
+  const int **optional,
+  const int **proprietary
+) {
+  static const int required_list[] = {
+    PROP_OBJECT_IDENTIFIER,
+    PROP_OBJECT_NAME,
+    PROP_OBJECT_TYPE,
+    PROP_PRESENT_VALUE,
+    PROP_IN_PROCESS,
+    PROP_ALL_WRITES_SUCCESSFUL,
+    PROP_ACTION,
+    -1
+  };
+
+  static const int optional_list[] = { -1 };
+  static const int proprietary_list[] = { -1 };
+
+  if (required) *required = required_list;
+  if (optional) *optional = optional_list;
+  if (proprietary) *proprietary = proprietary_list;
+}
+
+/**
+ * @brief Initializes a Command object.
+ */
+void command_init(void)
+{
+  return;
+}
+
+/**
+ * @brief Returns the count of Command objects for the currently selected
+ *        Device.
+ */
+unsigned command_count(void)
+{
+  return -1;
+}
+
+/**
+ * @brief Get the Commands's instace number from its index.
+ *
+ * @param index - Index of Command object from within the Devices Object's list.
+ *
+ * @return BACnet Object instance number.
+ */
+uint32_t command_index_to_instance(unsigned index)
+{
+  return -1;
+}
+
+/**
+ * @brief Checks if the Object instance is a valid Command Object.
+ *
+ * @param instance - Object instance number.
+ */
+bool command_valid_instance(uint32_t instance)
+{
+  return false;
+}
+
+/**
+ * @brief Retrieve the name of a Command Object.
+ *
+ * @param[in] instance - Object instance number.
+ * @param[out] name - The Objects's name.
+ */
+bool command_object_name(uint32_t instance, BACNET_CHARACTER_STRING *name)
+{
+  return false;
+}
+
+/**
+ * @brief BACnet read-property handler for a Command Object.
+ *
+ * @param[out] data - Holds request and reply data.
+ *
+ * @return Byte count of the APDU or BACNET_STATUS_ERROR.
+ */
+int command_read_property(BACNET_READ_PROPERTY_DATA *data)
+{
+  return -1;
+}
+
+/**
+ * @brief BACnet write-property handler for a Command Object.
+ *
+ * @param[out] data - Holds request and reply data.
+ *
+ * @return true if no errors occur.
+ */
+bool command_write_property(BACNET_WRITE_PROPERTY_DATA *data)
+{
+  return false;
+}

src/object/command.h

@@ -0,0 +1,17 @@
+#ifndef BACNET_OBJECT_COMMAND_H
+#define BACNET_OBJECT_COMMAND_H
+
+void command_init(void);
+unsigned command_count(void);
+uint32_t command_index_to_instance(unsigned index);
+bool command_valid_instance(uint32_t instance);
+bool command_object_name(uint32_t instance, BACNET_CHARACTER_STRING *name);
+int command_read_property(BACNET_READ_PROPERTY_DATA *data);
+bool command_write_property(BACNET_WRITE_PROPERTY_DATA *data);
+
+void command_property_lists(
+  const int **required,
+  const int **optional,
+  const int **proprietary);
+
+#endif /* BACNET_OBJECT_COMMAND_H */