diff -r 92f02bb17c7e -r 6dddf3070806 bacnet/runtime/ai.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bacnet/runtime/ai.h	Fri Jun 08 13:28:00 2018 +0200
@@ -0,0 +1,102 @@
+/**************************************************************************
+*
+* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
+* Copyright (C) 2011 Krzysztof Malorny <malornykrzysztof@gmail.com>
+* Copyright (C) 2017 Mario de Sousa <msousa@fe.up.pt>
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*
+*********************************************************************/
+#ifndef AI_H
+#define AI_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "bacdef.h"
+#include "bacerror.h"
+#include "wp.h"
+#include "rp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    typedef struct Analog_Input_descr {
+        /* pointer to IEC 61131-3 located variable that is mapped onto this BACnet object */
+        float   *Located_Var_ptr;
+        uint32_t Object_Identifier;  /* called object 'Instance' in the source code! */
+        char    *Object_Name;   
+        char    *Description;
+        uint16_t Units;
+      
+        /* stores the current value */
+        /* one entry per priority value */
+        float Present_Value;
+        unsigned Event_State:3;
+        bool Out_Of_Service;
+    } ANALOG_INPUT_DESCR;
+
+
+    void Analog_Input_Property_Lists(
+        const int **pRequired,
+        const int **pOptional,
+        const int **pProprietary);
+    bool Analog_Input_Valid_Instance(
+        uint32_t object_instance);
+    unsigned Analog_Input_Count(
+        void);
+    uint32_t Analog_Input_Index_To_Instance(
+        unsigned index);
+    unsigned Analog_Input_Instance_To_Index(
+        uint32_t object_instance);
+
+    bool Analog_Input_Object_Name(
+        uint32_t object_instance,
+        BACNET_CHARACTER_STRING * object_name);
+
+    int Analog_Input_Read_Property(
+        BACNET_READ_PROPERTY_DATA * rpdata);
+
+    bool Analog_Input_Write_Property(
+        BACNET_WRITE_PROPERTY_DATA * wp_data);
+
+    float Analog_Input_Present_Value(
+        uint32_t object_instance);
+
+    char *Analog_Input_Description(
+        uint32_t instance);
+
+    uint16_t Analog_Input_Units(
+        uint32_t instance);
+
+    bool Analog_Input_Out_Of_Service(
+        uint32_t instance);
+    void Analog_Input_Out_Of_Service_Set(
+        uint32_t instance,
+        bool oos_flag);
+
+    void Analog_Input_Init(
+        void);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif