bacnet/runtime/device.h
changeset 2020 6dddf3070806
child 2649 db68cb0e6bdc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bacnet/runtime/device.h	Fri Jun 08 13:28:00 2018 +0200
@@ -0,0 +1,369 @@
+/**************************************************************************
+*
+* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
+* 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.
+*
+*********************************************************************/
+
+/** device.h Defines functions for handling all BACnet objects belonging
+ *                 to a BACnet device, as well as Device-specific properties. */
+
+#ifndef DEVICE_H
+#define DEVICE_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "bacdef.h"
+#include "bacenum.h"
+#include "wp.h"
+#include "rd.h"
+#include "rp.h"
+#include "rpm.h"
+#include "readrange.h"
+
+/** Called so a BACnet object can perform any necessary initialization.
+ */
+typedef void (
+    *object_init_function) (
+    void);
+
+/** Counts the number of objects of this type.
+ * return: Count of implemented objects of this type.
+ */
+typedef unsigned (
+    *object_count_function) (
+    void);
+
+/** Maps an object index position to its corresponding BACnet object instance number.
+ * param: index [in] The index of the object, in the array of objects of its type.
+ * return: The BACnet object instance number to be used in a BACNET_OBJECT_ID.
+ */
+typedef uint32_t(
+    *object_index_to_instance_function)
+        (
+    unsigned index);
+
+/** Provides the BACnet Object_Name for a given object instance of this type.
+ * param: object_instance [in] The object instance number to be looked up.
+ * param: object_name [in,out] Pointer to a character_string structure that
+ *         will hold a copy of the object name if this is a valid object_instance.
+ * return: True if the object_instance is valid and object_name has been
+ *         filled with a copy of the Object's name.
+ */
+typedef bool(
+    *object_name_function)
+        (
+    uint32_t object_instance,
+    BACNET_CHARACTER_STRING * object_name);
+
+/** Look in the table of objects of this type, and see if this is a valid
+ *  instance number.
+ * param: [in] The object instance number to be looked up.
+ * return: True if the object instance refers to a valid object of this type.
+ */
+typedef bool(
+    *object_valid_instance_function) (
+    uint32_t object_instance);
+
+/** Helper function to step through an array of objects and find either the
+ * first one or the next one of a given type. Used to step through an array
+ * of objects which is not necessarily contiguious for each type i.e. the
+ * index for the 'n'th object of a given type is not necessarily 'n'.
+ * param: [in] The index of the current object or a value of ~0 to indicate
+ * start at the beginning.
+ * return: The index of the next object of the required type or ~0 (all bits
+ * == 1) to indicate no more objects found.
+ */
+typedef unsigned (
+    *object_iterate_function) (
+    unsigned current_index);
+
+/** Look in the table of objects of this type, and get the COV Value List.
+ * param: [in] The object instance number to be looked up.
+ * param: [out] The value list
+ * return: True if the object instance supports this feature, and has changed.
+ */
+typedef bool(
+    *object_value_list_function) (
+    uint32_t object_instance,
+    BACNET_PROPERTY_VALUE * value_list);
+
+/** Look in the table of objects for this instance to see if value changed.
+ * param: [in] The object instance number to be looked up.
+ * return: True if the object instance has changed.
+ */
+typedef bool(
+    *object_cov_function) (
+    uint32_t object_instance);
+
+/** Look in the table of objects for this instance to clear the changed flag.
+ * param: [in] The object instance number to be looked up.
+ */
+typedef void (
+    *object_cov_clear_function) (
+    uint32_t object_instance);
+
+/** Intrinsic Reporting funcionality.
+ * param: [in] Object instance.
+ */
+typedef void (
+    *object_intrinsic_reporting_function) (
+    uint32_t object_instance);
+
+
+/** Defines the group of object helper functions for any supported Object.
+ * Each Object must provide some implementation of each of these helpers
+ * in order to properly support the handlers.  Eg, the ReadProperty handler
+ * handler_read_property() relies on the instance of Object_Read_Property
+ * for each Object type, or configure the function as NULL.
+ * In both appearance and operation, this group of functions acts like
+ * they are member functions of a C++ Object base class.
+ */
+typedef struct object_functions {
+    BACNET_OBJECT_TYPE Object_Type;
+    object_init_function Object_Init;
+    object_count_function Object_Count;
+    object_index_to_instance_function Object_Index_To_Instance;
+    object_valid_instance_function Object_Valid_Instance;
+    object_name_function Object_Name;
+    read_property_function Object_Read_Property;
+    write_property_function Object_Write_Property;
+    rpm_property_lists_function Object_RPM_List;
+    rr_info_function Object_RR_Info;
+    object_iterate_function Object_Iterator;
+    object_value_list_function Object_Value_List;
+    object_cov_function Object_COV;
+    object_cov_clear_function Object_COV_Clear;
+    object_intrinsic_reporting_function Object_Intrinsic_Reporting;
+} object_functions_t;
+
+/* String Lengths for Device Object properties that may be changed
+ * (written to) over the BACnet network.
+ * Maximum sizes excluding nul terminator .
+ */
+#define STRLEN_X(minlen, str)  (((minlen)>sizeof(str))?(minlen):sizeof(str))
+#define MAX_DEV_NAME_LEN STRLEN_X(32, "%(BACnet_Device_Name)s")     /* Device name         */
+#define MAX_DEV_LOC_LEN  STRLEN_X(64, BACNET_DEVICE_LOCATION)       /* Device location     */
+#define MAX_DEV_MOD_LEN  STRLEN_X(32, BACNET_DEVICE_MODEL_NAME)     /* Device model name   */
+#define MAX_DEV_VER_LEN  STRLEN_X(16, BACNET_DEVICE_APPSOFT_VER)    /* Device application software version */
+#define MAX_DEV_DESC_LEN STRLEN_X(64, BACNET_DEVICE_DESCRIPTION)    /* Device description  */
+
+/** Structure to define the Object Properties common to all Objects. */
+typedef struct commonBacObj_s {
+
+    /** The BACnet type of this object (ie, what class is this object from?).
+     * This property, of type BACnetObjectType, indicates membership in a
+     * particular object type class. Each inherited class will be of one type.
+     */
+    BACNET_OBJECT_TYPE mObject_Type;
+
+    /** The instance number for this class instance. */
+    uint32_t Object_Instance_Number;
+
+    /** Object Name; must be unique.
+     * This property, of type CharacterString, shall represent a name for
+     * the object that is unique within the BACnet Device that maintains it.
+     */
+    char Object_Name[MAX_DEV_NAME_LEN];
+
+} COMMON_BAC_OBJECT;
+
+
+/** Structure to define the Properties of Device Objects which distinguish
+ *  one instance from another.
+ *  This structure only defines fields for properties that are unique to
+ *  a given Device object.  The rest may be fixed in device.c or hard-coded
+ *  into the read-property encoding.
+ *  This may be useful for implementations which manage multiple Devices,
+ *  eg, a Gateway.
+ */
+typedef struct devObj_s {
+    /** The BACnet Device Address for this device; ->len depends on DLL type. */
+    BACNET_ADDRESS bacDevAddr;
+
+    /** Structure for the Object Properties common to all Objects. */
+    COMMON_BAC_OBJECT bacObj;
+
+    /** Device Description. */
+    char Description[MAX_DEV_DESC_LEN];
+
+    /** The upcounter that shows if the Device ID or object structure has changed. */
+    uint32_t Database_Revision;
+} DEVICE_OBJECT_DATA;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    void Device_Init(
+        const char * Device_Object_Name);
+
+    bool Device_Reinitialize(
+        BACNET_REINITIALIZE_DEVICE_DATA * rd_data);
+
+    BACNET_REINITIALIZED_STATE Device_Reinitialized_State(
+        void);
+
+    rr_info_function Device_Objects_RR_Info(
+        BACNET_OBJECT_TYPE object_type);
+
+    void Device_getCurrentDateTime(
+        BACNET_DATE_TIME * DateTime);
+    int32_t Device_UTC_Offset(void);
+    bool Device_Daylight_Savings_Status(void);
+
+    void Device_Property_Lists(
+        const int **pRequired,
+        const int **pOptional,
+        const int **pProprietary);
+    void Device_Objects_Property_List(
+        BACNET_OBJECT_TYPE object_type,
+        struct special_property_list_t *pPropertyList);
+    /* functions to support COV */
+    bool Device_Encode_Value_List(
+        BACNET_OBJECT_TYPE object_type,
+        uint32_t object_instance,
+        BACNET_PROPERTY_VALUE * value_list);
+    bool Device_Value_List_Supported(
+        BACNET_OBJECT_TYPE object_type);
+    bool Device_COV(
+        BACNET_OBJECT_TYPE object_type,
+        uint32_t object_instance);
+    void Device_COV_Clear(
+        BACNET_OBJECT_TYPE object_type,
+        uint32_t object_instance);
+
+    uint32_t Device_Object_Instance_Number(
+        void);
+    bool Device_Set_Object_Instance_Number(
+        uint32_t object_id);
+    bool Device_Valid_Object_Instance_Number(
+        uint32_t object_id);
+    unsigned Device_Object_List_Count(
+        void);
+    bool Device_Object_List_Identifier(
+        unsigned array_index,
+        int *object_type,
+        uint32_t * instance);
+
+    unsigned Device_Count(
+        void);
+    uint32_t Device_Index_To_Instance(
+        unsigned index);
+
+    bool Device_Object_Name(
+        uint32_t object_instance,
+        BACNET_CHARACTER_STRING * object_name);
+    bool Device_Set_Object_Name(
+        BACNET_CHARACTER_STRING * object_name);
+    /* Copy a child object name, given its ID. */
+    bool Device_Object_Name_Copy(
+        BACNET_OBJECT_TYPE object_type,
+        uint32_t object_instance,
+        BACNET_CHARACTER_STRING * object_name);
+    bool Device_Object_Name_ANSI_Init(const char * value);
+
+    BACNET_DEVICE_STATUS Device_System_Status(
+        void);
+    int Device_Set_System_Status(
+        BACNET_DEVICE_STATUS status,
+        bool local);
+
+    const char *Device_Vendor_Name(
+        void);
+
+    uint16_t Device_Vendor_Identifier(
+        void);
+    void Device_Set_Vendor_Identifier(
+        uint16_t vendor_id);
+
+    const char *Device_Model_Name(
+        void);
+    bool Device_Set_Model_Name(
+        const char *name,
+        size_t length);
+
+    const char *Device_Firmware_Revision(
+        void);
+
+    const char *Device_Application_Software_Version(
+        void);
+    bool Device_Set_Application_Software_Version(
+        const char *name,
+        size_t length);
+
+    const char *Device_Description(
+        void);
+    bool Device_Set_Description(
+        const char *name,
+        size_t length);
+
+    const char *Device_Location(
+        void);
+    bool Device_Set_Location(
+        const char *name,
+        size_t length);
+
+    /* some stack-centric constant values - no set methods */
+    uint8_t Device_Protocol_Version(
+        void);
+    uint8_t Device_Protocol_Revision(
+        void);
+    BACNET_SEGMENTATION Device_Segmentation_Supported(
+        void);
+
+    uint32_t Device_Database_Revision(
+        void);
+    void Device_Set_Database_Revision(
+        uint32_t revision);
+    void Device_Inc_Database_Revision(
+        void);
+
+    bool Device_Valid_Object_Name(
+        BACNET_CHARACTER_STRING * object_name,
+        int *object_type,
+        uint32_t * object_instance);
+    bool Device_Valid_Object_Id(
+        int object_type,
+        uint32_t object_instance);
+
+    int Device_Read_Property(
+        BACNET_READ_PROPERTY_DATA * rpdata);
+    bool Device_Write_Property(
+        BACNET_WRITE_PROPERTY_DATA * wp_data);
+
+    bool DeviceGetRRInfo(
+        BACNET_READ_RANGE_DATA * pRequest,      /* Info on the request */
+        RR_PROP_INFO * pInfo);  /* Where to put the information */
+
+    int Device_Read_Property_Local(
+        BACNET_READ_PROPERTY_DATA * rpdata);
+    bool Device_Write_Property_Local(
+        BACNET_WRITE_PROPERTY_DATA * wp_data);
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif