Steve Karg
1344 lines
43 KiB
C
1344 lines
43 KiB
C
/**
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* @file
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* @author Steve Karg <skarg@users.sourceforge.net>
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* @date 2005
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* @brief The Multi-State object is an object with a present-value that
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* uses an integer data type with a sequence of 1 to N values.
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* @copyright SPDX-License-Identifier: MIT
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* BACnet Stack defines - first */
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#include "bacnet/bacdef.h"
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/* BACnet Stack API */
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#include "bacnet/bacdcode.h"
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#include "bacnet/bacerror.h"
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#include "bacnet/bacapp.h"
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#include "bacnet/bactext.h"
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#include "bacnet/cov.h"
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#include "bacnet/apdu.h"
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#include "bacnet/npdu.h"
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#include "bacnet/abort.h"
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#include "bacnet/reject.h"
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#include "bacnet/rp.h"
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#include "bacnet/wp.h"
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#include "bacnet/proplist.h"
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#include "bacnet/basic/services.h"
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#include "bacnet/basic/sys/keylist.h"
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/* me! */
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#include "mso.h"
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struct object_data {
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bool Out_Of_Service : 1;
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bool Changed : 1;
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bool Relinquished[BACNET_MAX_PRIORITY];
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uint8_t Priority_Array[BACNET_MAX_PRIORITY];
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uint8_t Relinquish_Default;
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uint8_t Reliability;
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const char *Object_Name;
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/* The state text functions expect a list of C strings separated by '\0' */
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const char *State_Text;
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const char *Description;
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};
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/* Key List for storing the object data sorted by instance number */
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static OS_Keylist Object_List;
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/* common object type */
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static const BACNET_OBJECT_TYPE Object_Type = OBJECT_MULTI_STATE_OUTPUT;
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/* callback for present value writes */
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static multistate_output_write_present_value_callback
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Multistate_Output_Write_Present_Value_Callback;
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/* default state text when none is specified */
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static const char *Default_State_Text = "State 1\0"
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"State 2\0"
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"State 3\0";
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/* These three arrays are used by the ReadPropertyMultiple handler */
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static const int Properties_Required[] = {
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/* list of required properties in the object */
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PROP_OBJECT_IDENTIFIER,
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PROP_OBJECT_NAME,
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PROP_OBJECT_TYPE,
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PROP_PRESENT_VALUE,
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PROP_STATUS_FLAGS,
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PROP_EVENT_STATE,
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PROP_OUT_OF_SERVICE,
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PROP_NUMBER_OF_STATES,
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PROP_PRIORITY_ARRAY,
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PROP_RELINQUISH_DEFAULT,
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#if (BACNET_PROTOCOL_REVISION >= 17)
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PROP_CURRENT_COMMAND_PRIORITY,
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#endif
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-1
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};
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static const int Properties_Optional[] = {
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/* list of required properties in the object */
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PROP_STATE_TEXT, PROP_DESCRIPTION, PROP_RELIABILITY, -1
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};
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static const int Properties_Proprietary[] = { -1 };
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/**
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* @brief Returns the list of required, optional, and proprietary properties.
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* Used by ReadPropertyMultiple service.
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* @param pRequired - pointer to list of int terminated by -1, of
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* BACnet required properties for this object.
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* @param pOptional - pointer to list of int terminated by -1, of
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* BACnet optkional properties for this object.
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* @param pProprietary - pointer to list of int terminated by -1, of
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* BACnet proprietary properties for this object.
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*/
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void Multistate_Output_Property_Lists(
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const int **pRequired, const int **pOptional, const int **pProprietary)
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{
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if (pRequired) {
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*pRequired = Properties_Required;
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}
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if (pOptional) {
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*pOptional = Properties_Optional;
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}
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if (pProprietary) {
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*pProprietary = Properties_Proprietary;
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}
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return;
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}
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/**
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* @brief Determines if a given Multistate instance is valid
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* @param object_instance - object-instance number of the object
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* @return true if the instance is valid, and false if not
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*/
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bool Multistate_Output_Valid_Instance(uint32_t object_instance)
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{
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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return true;
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}
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return false;
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}
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/**
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* @brief Determines the number of Multistate objects
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* @return Number of Multistate objects
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*/
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unsigned Multistate_Output_Count(void)
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{
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return Keylist_Count(Object_List);
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}
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/**
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* @brief Determines the object instance-number for a given 0..N index
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* of Multistate objects where N is Multistate_Output_Count().
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* @param index - 0..Multistate_Output_Count() value
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* @return object instance-number for the given index
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*/
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uint32_t Multistate_Output_Index_To_Instance(unsigned index)
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{
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KEY key = UINT32_MAX;
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Keylist_Index_Key(Object_List, index, &key);
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return key;
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}
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/**
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* @brief For a given object instance-number, determines a 0..N index
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* of Multistate objects where N is Multistate_Output_Count().
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* @param object_instance - object-instance number of the object
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* @return index for the given instance-number, or Multistate_Output_Count()
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* if not valid.
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*/
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unsigned Multistate_Output_Instance_To_Index(uint32_t object_instance)
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{
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return Keylist_Index(Object_List, object_instance);
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}
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/**
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* @brief Count the number of states
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* @param state_names - string of null-terminated state names
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* @return number of states
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*/
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static unsigned state_name_count(const char *state_names)
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{
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unsigned count = 0;
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int len = 0;
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if (state_names) {
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do {
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len = strlen(state_names);
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if (len > 0) {
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count++;
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state_names = state_names + len + 1;
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}
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} while (len > 0);
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}
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return count;
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}
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/**
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* @brief Get the specific state name at index 0..N
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* @param state_names - string of null-terminated state names
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* @param state_index - state index number 1..N of the state names
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* @return state name, or NULL
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*/
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static const char *state_name_by_index(const char *state_names, unsigned index)
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{
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unsigned count = 0;
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int len = 0;
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if (state_names) {
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do {
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len = strlen(state_names);
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if (len > 0) {
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count++;
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if (index == count) {
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return state_names;
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}
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state_names = state_names + len + 1;
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}
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} while (len > 0);
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}
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return NULL;
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}
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/**
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* @brief For a given object instance-number, determines number of states
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* @param object_instance - object-instance number of the object
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* @return number of states
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*/
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uint32_t Multistate_Output_Max_States(uint32_t object_instance)
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{
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uint32_t count = 0;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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count = state_name_count(pObject->State_Text);
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}
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return count;
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}
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/**
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* @brief For a given object instance-number, determines the present-value
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* @param object_instance - object-instance number of the object
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* @return present-value of the object
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*/
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static uint32_t Object_Present_Value(const struct object_data *pObject)
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{
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uint32_t value = 1;
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uint8_t priority = 0; /* loop counter */
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if (pObject) {
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value = pObject->Relinquish_Default;
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for (priority = 0; priority < BACNET_MAX_PRIORITY; priority++) {
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if (!pObject->Relinquished[priority]) {
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value = pObject->Priority_Array[priority];
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break;
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}
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}
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}
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return value;
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}
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/**
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* @brief For a given object instance-number, determines the present-value
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* @param object_instance - object-instance number of the object
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* @return present-value of the object
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*/
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uint32_t Multistate_Output_Present_Value(uint32_t object_instance)
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{
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uint32_t value = 1;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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value = Object_Present_Value(pObject);
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return value;
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}
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/**
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* @brief Encode a BACnetARRAY property element
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* @param object_instance [in] BACnet network port object instance number
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* @param priority [in] array index requested:
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* 0 to N for individual array members
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* @param apdu [out] Buffer in which the APDU contents are built, or NULL to
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* return the length of buffer if it had been built
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* @return The length of the apdu encoded or
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* BACNET_STATUS_ERROR for ERROR_CODE_INVALID_ARRAY_INDEX
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*/
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static int Multistate_Output_Priority_Array_Encode(
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uint32_t object_instance, BACNET_ARRAY_INDEX priority, uint8_t *apdu)
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{
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int apdu_len = BACNET_STATUS_ERROR;
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uint32_t value = 1;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject && (priority < BACNET_MAX_PRIORITY)) {
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if (pObject->Relinquished[priority]) {
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apdu_len = encode_application_null(apdu);
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} else {
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value = pObject->Priority_Array[priority];
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apdu_len = encode_application_unsigned(apdu, value);
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}
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}
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return apdu_len;
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}
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/**
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* @brief For a given object instance-number, determines the active priority
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* @param object_instance - object-instance number of the object
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* @return active priority 1..16, or 0 if no priority is active
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*/
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unsigned Multistate_Output_Present_Value_Priority(uint32_t object_instance)
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{
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unsigned p = 0; /* loop counter */
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unsigned priority = 0; /* return value */
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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for (p = 0; p < BACNET_MAX_PRIORITY; p++) {
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if (!pObject->Relinquished[p]) {
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priority = p + 1;
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break;
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}
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}
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}
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return priority;
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}
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/**
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* @brief For a given object instance-number, determines the
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* relinquish-default value
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* @param object_instance - object-instance number
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* @return relinquish-default value of the object
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*/
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uint32_t Multistate_Output_Relinquish_Default(uint32_t object_instance)
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{
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uint32_t value = 1;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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value = pObject->Relinquish_Default;
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}
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return value;
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}
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/**
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* @brief For a given object instance-number, sets the relinquish-default value
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* @param object_instance - object-instance number of the object
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* @param value - floating point analog output relinquish-default value
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* @return true if values are within range and relinquish-default value is set.
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*/
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bool Multistate_Output_Relinquish_Default_Set(
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uint32_t object_instance, uint32_t value)
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{
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bool status = false;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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pObject->Relinquish_Default = value;
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status = true;
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}
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return status;
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}
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/**
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* @brief For a given object instance-number, writes the present-value to the
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* remote node
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* @param object_instance - object-instance number of the object
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* @param value - floating point analog value
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* @param priority - priority-array index value 1..16
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* @param error_class - the BACnet error class
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* @param error_code - BACnet Error code
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* @return true if values are within range and present-value is set.
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*/
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static bool Multistate_Output_Relinquish_Default_Write(
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uint32_t object_instance,
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uint32_t value,
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BACNET_ERROR_CLASS *error_class,
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BACNET_ERROR_CODE *error_code)
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{
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bool status = false;
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struct object_data *pObject;
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uint32_t old_value = 0;
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uint32_t new_value = 0;
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unsigned max_states = 0;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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max_states = state_name_count(pObject->State_Text);
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if ((value >= 1) && (value <= max_states)) {
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old_value = Object_Present_Value(pObject);
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Multistate_Output_Relinquish_Default_Set(object_instance, value);
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if (pObject->Out_Of_Service) {
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/* The physical point that the object represents
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is not in service. This means that changes to the
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Present_Value property are decoupled from the
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physical output when the value of Out_Of_Service
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is true. */
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} else if (Multistate_Output_Write_Present_Value_Callback) {
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new_value = Object_Present_Value(pObject);
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Multistate_Output_Write_Present_Value_Callback(
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object_instance, old_value, new_value);
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}
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status = true;
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} else {
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*error_class = ERROR_CLASS_PROPERTY;
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*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
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}
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} else {
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*error_class = ERROR_CLASS_OBJECT;
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*error_code = ERROR_CODE_UNKNOWN_OBJECT;
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}
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return status;
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}
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/**
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* @brief For a given object instance-number, sets the present-value
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* @param object_instance - object-instance number of the object
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* @param value - integer multi-state value 1..N
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* @param priority - priority-array index value 1..16
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* @return true if values are within range and present-value is set.
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*/
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bool Multistate_Output_Present_Value_Set(
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uint32_t object_instance, uint32_t value, unsigned priority)
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{
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bool status = false;
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uint32_t old_value = 0;
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uint32_t new_value = 0;
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struct object_data *pObject;
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unsigned max_states = 0;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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max_states = state_name_count(pObject->State_Text);
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if ((value >= 1) && (value <= max_states) && (priority >= 1) &&
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(priority <= BACNET_MAX_PRIORITY)) {
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old_value = Object_Present_Value(pObject);
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pObject->Relinquished[priority - 1] = false;
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pObject->Priority_Array[priority - 1] = value;
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new_value = Object_Present_Value(pObject);
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if (old_value != new_value) {
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pObject->Changed = true;
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}
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status = true;
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}
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}
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return status;
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}
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/**
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* @brief Determine if a priority-array slot is relinquished
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* @param object_instance [in] BACnet network port object instance number
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* @param priority - priority-array index value 1..16
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* @return true if the priority-array slot is relinquished
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*/
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bool Multistate_Output_Priority_Array_Relinquished(
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uint32_t object_instance, unsigned priority)
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{
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bool status = false;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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if ((priority >= 1) && (priority <= BACNET_MAX_PRIORITY)) {
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status = pObject->Relinquished[priority - 1];
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}
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}
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return status;
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}
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/**
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* @brief For a given object instance-number, determines the
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* priority-array value
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* @param object_instance - object-instance number
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* @param priority - priority-array index value 1..16
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* @return priority-array value of the object, or 0 if
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* object not found, or priority out of range, or relinquished
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*/
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uint32_t Multistate_Output_Priority_Array_Value(
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uint32_t object_instance, unsigned priority)
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{
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uint32_t value = 0;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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if ((priority >= 1) && (priority <= BACNET_MAX_PRIORITY)) {
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value = pObject->Priority_Array[priority - 1];
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}
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}
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return value;
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}
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|
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/**
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* @brief For a given object instance-number, relinquishes the present-value
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* @param object_instance - object-instance number of the object
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* @param priority - priority-array index value 1..16
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* @return true if values are within range and present-value is relinquished.
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*/
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bool Multistate_Output_Present_Value_Relinquish(
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uint32_t object_instance, unsigned priority)
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{
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bool status = false;
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uint32_t old_value = 0;
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uint32_t new_value = 0;
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struct object_data *pObject;
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pObject = Keylist_Data(Object_List, object_instance);
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if (pObject) {
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if ((priority >= 1) && (priority <= BACNET_MAX_PRIORITY)) {
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old_value = Object_Present_Value(pObject);
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pObject->Relinquished[priority - 1] = true;
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pObject->Priority_Array[priority - 1] = 0;
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new_value = Object_Present_Value(pObject);
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if (old_value != new_value) {
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pObject->Changed = true;
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}
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status = true;
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}
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}
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return status;
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}
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|
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/**
|
|
* @brief For a given object instance-number, writes the present-value to the
|
|
* remote node
|
|
* @param object_instance - object-instance number of the object
|
|
* @param value - floating point analog value
|
|
* @param priority - priority-array index value 1..16
|
|
* @param error_class - the BACnet error class
|
|
* @param error_code - BACnet Error code
|
|
* @return true if values are within range and present-value is set.
|
|
*/
|
|
static bool Multistate_Output_Present_Value_Write(
|
|
uint32_t object_instance,
|
|
uint32_t value,
|
|
uint8_t priority,
|
|
BACNET_ERROR_CLASS *error_class,
|
|
BACNET_ERROR_CODE *error_code)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject;
|
|
uint32_t old_value = 0;
|
|
uint32_t new_value = 0;
|
|
unsigned max_states = 0;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
max_states = state_name_count(pObject->State_Text);
|
|
if ((priority >= 1) && (priority <= BACNET_MAX_PRIORITY) &&
|
|
(value >= 1) && (value <= max_states)) {
|
|
if (priority != 6) {
|
|
old_value = Object_Present_Value(pObject);
|
|
Multistate_Output_Present_Value_Set(
|
|
object_instance, value, priority);
|
|
if (pObject->Out_Of_Service) {
|
|
/* The physical point that the object represents
|
|
is not in service. This means that changes to the
|
|
Present_Value property are decoupled from the
|
|
physical output when the value of Out_Of_Service
|
|
is true. */
|
|
} else if (Multistate_Output_Write_Present_Value_Callback) {
|
|
new_value = Object_Present_Value(pObject);
|
|
Multistate_Output_Write_Present_Value_Callback(
|
|
object_instance, old_value, new_value);
|
|
}
|
|
status = true;
|
|
} else {
|
|
*error_class = ERROR_CLASS_PROPERTY;
|
|
*error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
|
|
}
|
|
} else {
|
|
*error_class = ERROR_CLASS_PROPERTY;
|
|
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
|
|
}
|
|
} else {
|
|
*error_class = ERROR_CLASS_OBJECT;
|
|
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, writes the present-value to the
|
|
* remote node
|
|
* @param object_instance - object-instance number of the object
|
|
* @param priority - priority-array index value 1..16
|
|
* @param error_class - the BACnet error class
|
|
* @param error_code - BACnet Error code
|
|
* @return true if values are within range and write is requested
|
|
*/
|
|
static bool Multistate_Output_Present_Value_Relinquish_Write(
|
|
uint32_t object_instance,
|
|
uint8_t priority,
|
|
BACNET_ERROR_CLASS *error_class,
|
|
BACNET_ERROR_CODE *error_code)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject;
|
|
uint32_t old_value = 0;
|
|
uint32_t new_value = 0;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
if ((priority >= 1) && (priority <= BACNET_MAX_PRIORITY)) {
|
|
if (priority != 6) {
|
|
old_value = Object_Present_Value(pObject);
|
|
Multistate_Output_Present_Value_Relinquish(
|
|
object_instance, priority);
|
|
if (pObject->Out_Of_Service) {
|
|
/* The physical point that the object represents
|
|
is not in service. This means that changes to the
|
|
Present_Value property are decoupled from the
|
|
physical output when the value of Out_Of_Service
|
|
is true. */
|
|
} else if (Multistate_Output_Write_Present_Value_Callback) {
|
|
new_value = Object_Present_Value(pObject);
|
|
Multistate_Output_Write_Present_Value_Callback(
|
|
object_instance, old_value, new_value);
|
|
}
|
|
status = true;
|
|
} else {
|
|
*error_class = ERROR_CLASS_PROPERTY;
|
|
*error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
|
|
}
|
|
} else {
|
|
*error_class = ERROR_CLASS_PROPERTY;
|
|
*error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
|
|
}
|
|
} else {
|
|
*error_class = ERROR_CLASS_OBJECT;
|
|
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, determines the
|
|
* out-of-service state
|
|
* @param object_instance - object-instance number of the object
|
|
* @return out-of-service state of the object
|
|
*/
|
|
bool Multistate_Output_Out_Of_Service(uint32_t object_instance)
|
|
{
|
|
bool value = false;
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
value = pObject->Out_Of_Service;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, sets the out-of-service state
|
|
* @param object_instance - object-instance number of the object
|
|
* @param value - out-of-service state
|
|
*/
|
|
void Multistate_Output_Out_Of_Service_Set(uint32_t object_instance, bool value)
|
|
{
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
if (pObject->Out_Of_Service != value) {
|
|
pObject->Out_Of_Service = value;
|
|
pObject->Changed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, loads the object-name into
|
|
* a characterstring. Note that the object name must be unique
|
|
* within this device.
|
|
* @param object_instance - object-instance number of the object
|
|
* @param object_name - holds the object-name retrieved
|
|
*
|
|
* @return true if object-name was retrieved
|
|
*/
|
|
bool Multistate_Output_Object_Name(
|
|
uint32_t object_instance, BACNET_CHARACTER_STRING *object_name)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject;
|
|
char name_text[32];
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
if (pObject->Object_Name) {
|
|
status =
|
|
characterstring_init_ansi(object_name, pObject->Object_Name);
|
|
} else {
|
|
snprintf(
|
|
name_text, sizeof(name_text), "MULTI-STATE OUTPUT %lu",
|
|
(unsigned long)object_instance);
|
|
status = characterstring_init_ansi(object_name, name_text);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, sets the object-name
|
|
* Note that the object name must be unique within this device.
|
|
* @param object_instance - object-instance number of the object
|
|
* @param new_name - holds the object-name to be set
|
|
* @return true if object-name was set
|
|
*/
|
|
bool Multistate_Output_Name_Set(uint32_t object_instance, const char *new_name)
|
|
{
|
|
bool status = false; /* return value */
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
status = true;
|
|
pObject->Object_Name = new_name;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Return the object name C string
|
|
* @param object_instance [in] BACnet object instance number
|
|
* @return object name or NULL if not found
|
|
*/
|
|
const char *Multistate_Output_Name_ASCII(uint32_t object_instance)
|
|
{
|
|
const char *name = NULL;
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
name = pObject->Object_Name;
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, returns the state-text in
|
|
* a C string.
|
|
* @param object_instance - object-instance number of the object
|
|
* @param state_index - state index number 1..N of the text requested
|
|
* @return C string retrieved
|
|
*/
|
|
const char *
|
|
Multistate_Output_State_Text(uint32_t object_instance, uint32_t state_index)
|
|
{
|
|
const char *pName = NULL; /* return value */
|
|
const struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
if (state_index > 0) {
|
|
pName = state_name_by_index(pObject->State_Text, state_index);
|
|
}
|
|
}
|
|
|
|
return pName;
|
|
}
|
|
|
|
/**
|
|
* @brief Encode a BACnetARRAY property element
|
|
* @param object_instance [in] BACnet network port object instance number
|
|
* @param index [in] array index requested:
|
|
* 0 to N for individual array members
|
|
* @param apdu [out] Buffer in which the APDU contents are built, or NULL to
|
|
* return the length of buffer if it had been built
|
|
* @return The length of the apdu encoded or
|
|
* BACNET_STATUS_ERROR for ERROR_CODE_INVALID_ARRAY_INDEX
|
|
*/
|
|
static int Multistate_Output_State_Text_Encode(
|
|
uint32_t object_instance, BACNET_ARRAY_INDEX index, uint8_t *apdu)
|
|
{
|
|
int apdu_len = BACNET_STATUS_ERROR;
|
|
const char *pName = NULL; /* return value */
|
|
BACNET_CHARACTER_STRING char_string = { 0 };
|
|
uint32_t state_index = 1;
|
|
|
|
state_index += index;
|
|
pName = Multistate_Output_State_Text(object_instance, state_index);
|
|
if (pName) {
|
|
characterstring_init_ansi(&char_string, pName);
|
|
apdu_len = encode_application_character_string(apdu, &char_string);
|
|
}
|
|
|
|
return apdu_len;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, sets the list of state-text from
|
|
* a C string array. The state_text_list consists of C strings separated
|
|
* by '\0'. For example:
|
|
* {@code
|
|
* static const char *baud_rate_names = {
|
|
* "9600\0"
|
|
* "19200\0"
|
|
* "38400\0"
|
|
* "57600\0"
|
|
* "76800\0"
|
|
* "115200\0"
|
|
* };
|
|
*
|
|
* @param object_instance - object-instance number of the object
|
|
* @param state_text_list - array of state names to use in this object
|
|
* @return true if the state text was set
|
|
*/
|
|
bool Multistate_Output_State_Text_List_Set(
|
|
uint32_t object_instance, const char *state_text_list)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
pObject->State_Text = state_text_list;
|
|
status = true;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, gets the reliability.
|
|
* @param object_instance - object-instance number of the object
|
|
* @return reliability value
|
|
*/
|
|
BACNET_RELIABILITY Multistate_Output_Reliability(uint32_t object_instance)
|
|
{
|
|
BACNET_RELIABILITY reliability = RELIABILITY_NO_FAULT_DETECTED;
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
reliability = (BACNET_RELIABILITY)pObject->Reliability;
|
|
}
|
|
|
|
return reliability;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, gets the Fault status flag
|
|
* @param object_instance - object-instance number of the object
|
|
* @return true the status flag is in Fault
|
|
*/
|
|
static bool Multistate_Output_Object_Fault(const struct object_data *pObject)
|
|
{
|
|
bool fault = false;
|
|
|
|
if (pObject) {
|
|
if (pObject->Reliability != RELIABILITY_NO_FAULT_DETECTED) {
|
|
fault = true;
|
|
}
|
|
}
|
|
|
|
return fault;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, sets the reliability
|
|
* @param object_instance - object-instance number of the object
|
|
* @param value - reliability enumerated value
|
|
* @return true if values are within range and property is set.
|
|
*/
|
|
bool Multistate_Output_Reliability_Set(
|
|
uint32_t object_instance, BACNET_RELIABILITY value)
|
|
{
|
|
struct object_data *pObject;
|
|
bool status = false;
|
|
bool fault = false;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
if (value <= 255) {
|
|
fault = Multistate_Output_Object_Fault(pObject);
|
|
pObject->Reliability = value;
|
|
if (fault != Multistate_Output_Object_Fault(pObject)) {
|
|
pObject->Changed = true;
|
|
}
|
|
status = true;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, gets the Fault status flag
|
|
* @param object_instance - object-instance number of the object
|
|
* @return true the status flag is in Fault
|
|
*/
|
|
static bool Multistate_Output_Fault(uint32_t object_instance)
|
|
{
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
|
|
return Multistate_Output_Object_Fault(pObject);
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, returns the description
|
|
* @param object_instance - object-instance number of the object
|
|
* @return description text or NULL if not found
|
|
*/
|
|
const char *Multistate_Output_Description(uint32_t object_instance)
|
|
{
|
|
const char *name = NULL;
|
|
const struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
name = pObject->Description;
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
/**
|
|
* @brief For a given object instance-number, sets the description
|
|
* @param object_instance - object-instance number of the object
|
|
* @param new_name - holds the description to be set
|
|
* @return true if object-name was set
|
|
*/
|
|
bool Multistate_Output_Description_Set(
|
|
uint32_t object_instance, const char *new_name)
|
|
{
|
|
bool status = false; /* return value */
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
status = true;
|
|
pObject->Description = new_name;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Get the COV change flag status
|
|
* @param object_instance - object-instance number of the object
|
|
* @return the COV change flag status
|
|
*/
|
|
bool Multistate_Output_Change_Of_Value(uint32_t object_instance)
|
|
{
|
|
bool changed = false;
|
|
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
changed = pObject->Changed;
|
|
}
|
|
|
|
return changed;
|
|
}
|
|
|
|
/**
|
|
* @brief Clear the COV change flag
|
|
* @param object_instance - object-instance number of the object
|
|
*/
|
|
void Multistate_Output_Change_Of_Value_Clear(uint32_t object_instance)
|
|
{
|
|
struct object_data *pObject;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
pObject->Changed = false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Encode the Value List for Present-Value and Status-Flags
|
|
* @param object_instance - object-instance number of the object
|
|
* @param value_list - #BACNET_PROPERTY_VALUE with at least 2 entries
|
|
* @return true if values were encoded
|
|
*/
|
|
bool Multistate_Output_Encode_Value_List(
|
|
uint32_t object_instance, BACNET_PROPERTY_VALUE *value_list)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject;
|
|
const bool in_alarm = false;
|
|
bool fault = false;
|
|
const bool overridden = false;
|
|
uint32_t present_value = 1;
|
|
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (pObject) {
|
|
fault = Multistate_Output_Object_Fault(pObject);
|
|
present_value = Object_Present_Value(pObject);
|
|
status = cov_value_list_encode_unsigned(
|
|
value_list, present_value, in_alarm, fault, overridden,
|
|
pObject->Out_Of_Service);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief ReadProperty handler for this object. For the given ReadProperty
|
|
* data, the application_data is loaded or the error flags are set.
|
|
* @param rpdata - BACNET_READ_PROPERTY_DATA data, including
|
|
* requested data and space for the reply, or error response.
|
|
* @return number of APDU bytes in the response, or
|
|
* BACNET_STATUS_ERROR on error.
|
|
*/
|
|
int Multistate_Output_Read_Property(BACNET_READ_PROPERTY_DATA *rpdata)
|
|
{
|
|
int apdu_len = 0; /* return value */
|
|
int apdu_size = 0;
|
|
BACNET_BIT_STRING bit_string;
|
|
BACNET_CHARACTER_STRING char_string;
|
|
uint32_t present_value = 0;
|
|
unsigned i = 0;
|
|
uint32_t max_states = 0;
|
|
bool state = false;
|
|
uint8_t *apdu = NULL;
|
|
|
|
if ((rpdata == NULL) || (rpdata->application_data == NULL) ||
|
|
(rpdata->application_data_len == 0)) {
|
|
return 0;
|
|
}
|
|
if (!property_lists_member(
|
|
Properties_Required, Properties_Optional, Properties_Proprietary,
|
|
rpdata->object_property)) {
|
|
rpdata->error_class = ERROR_CLASS_PROPERTY;
|
|
rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
|
|
return BACNET_STATUS_ERROR;
|
|
}
|
|
apdu = rpdata->application_data;
|
|
apdu_size = rpdata->application_data_len;
|
|
switch (rpdata->object_property) {
|
|
case PROP_OBJECT_IDENTIFIER:
|
|
apdu_len = encode_application_object_id(
|
|
&apdu[0], Object_Type, rpdata->object_instance);
|
|
break;
|
|
case PROP_OBJECT_NAME:
|
|
Multistate_Output_Object_Name(
|
|
rpdata->object_instance, &char_string);
|
|
apdu_len =
|
|
encode_application_character_string(&apdu[0], &char_string);
|
|
break;
|
|
case PROP_OBJECT_TYPE:
|
|
apdu_len = encode_application_enumerated(&apdu[0], Object_Type);
|
|
break;
|
|
case PROP_PRESENT_VALUE:
|
|
present_value =
|
|
Multistate_Output_Present_Value(rpdata->object_instance);
|
|
apdu_len = encode_application_unsigned(&apdu[0], present_value);
|
|
break;
|
|
case PROP_STATUS_FLAGS:
|
|
/* note: see the details in the standard on how to use these */
|
|
bitstring_init(&bit_string);
|
|
bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);
|
|
state = Multistate_Output_Fault(rpdata->object_instance);
|
|
bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, state);
|
|
bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);
|
|
state = Multistate_Output_Out_Of_Service(rpdata->object_instance);
|
|
bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, state);
|
|
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
|
|
break;
|
|
case PROP_RELIABILITY:
|
|
apdu_len = encode_application_enumerated(
|
|
&apdu[0],
|
|
Multistate_Output_Reliability(rpdata->object_instance));
|
|
break;
|
|
case PROP_EVENT_STATE:
|
|
/* note: see the details in the standard on how to use this */
|
|
apdu_len =
|
|
encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
|
|
break;
|
|
case PROP_OUT_OF_SERVICE:
|
|
state = Multistate_Output_Out_Of_Service(rpdata->object_instance);
|
|
apdu_len = encode_application_boolean(&apdu[0], state);
|
|
break;
|
|
case PROP_NUMBER_OF_STATES:
|
|
apdu_len = encode_application_unsigned(
|
|
&apdu[apdu_len],
|
|
Multistate_Output_Max_States(rpdata->object_instance));
|
|
break;
|
|
case PROP_PRIORITY_ARRAY:
|
|
apdu_len = bacnet_array_encode(
|
|
rpdata->object_instance, rpdata->array_index,
|
|
Multistate_Output_Priority_Array_Encode, BACNET_MAX_PRIORITY,
|
|
apdu, apdu_size);
|
|
if (apdu_len == BACNET_STATUS_ABORT) {
|
|
rpdata->error_code =
|
|
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
|
|
} else if (apdu_len == BACNET_STATUS_ERROR) {
|
|
rpdata->error_class = ERROR_CLASS_PROPERTY;
|
|
rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
|
|
}
|
|
break;
|
|
case PROP_RELINQUISH_DEFAULT:
|
|
present_value =
|
|
Multistate_Output_Relinquish_Default(rpdata->object_instance);
|
|
apdu_len = encode_application_unsigned(&apdu[0], present_value);
|
|
break;
|
|
case PROP_STATE_TEXT:
|
|
max_states = Multistate_Output_Max_States(rpdata->object_instance);
|
|
apdu_len = bacnet_array_encode(
|
|
rpdata->object_instance, rpdata->array_index,
|
|
Multistate_Output_State_Text_Encode, max_states, apdu,
|
|
apdu_size);
|
|
if (apdu_len == BACNET_STATUS_ABORT) {
|
|
rpdata->error_code =
|
|
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
|
|
} else if (apdu_len == BACNET_STATUS_ERROR) {
|
|
rpdata->error_class = ERROR_CLASS_PROPERTY;
|
|
rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
|
|
}
|
|
break;
|
|
case PROP_DESCRIPTION:
|
|
characterstring_init_ansi(
|
|
&char_string,
|
|
Multistate_Output_Description(rpdata->object_instance));
|
|
apdu_len =
|
|
encode_application_character_string(&apdu[0], &char_string);
|
|
break;
|
|
case PROP_CURRENT_COMMAND_PRIORITY:
|
|
i = Multistate_Output_Present_Value_Priority(
|
|
rpdata->object_instance);
|
|
if ((i >= BACNET_MIN_PRIORITY) && (i <= BACNET_MAX_PRIORITY)) {
|
|
apdu_len = encode_application_unsigned(&apdu[0], i);
|
|
} else {
|
|
apdu_len = encode_application_null(&apdu[0]);
|
|
}
|
|
break;
|
|
default:
|
|
rpdata->error_class = ERROR_CLASS_PROPERTY;
|
|
rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
|
|
apdu_len = BACNET_STATUS_ERROR;
|
|
break;
|
|
}
|
|
|
|
return apdu_len;
|
|
}
|
|
|
|
/**
|
|
* @brief WriteProperty handler for this object. For the given WriteProperty
|
|
* data, the application_data is loaded or the error flags are set.
|
|
* @param wp_data - BACNET_WRITE_PROPERTY_DATA data, including
|
|
* requested data and space for the reply, or error response.
|
|
* @return false if an error is loaded, true if no errors
|
|
*/
|
|
bool Multistate_Output_Write_Property(BACNET_WRITE_PROPERTY_DATA *wp_data)
|
|
{
|
|
bool status = false; /* return value */
|
|
int len = 0;
|
|
BACNET_APPLICATION_DATA_VALUE value = { 0 };
|
|
|
|
/* decode the first chunk of the request */
|
|
len = bacapp_decode_application_data(
|
|
wp_data->application_data, wp_data->application_data_len, &value);
|
|
/* len < application_data_len: extra data for arrays only */
|
|
if (len < 0) {
|
|
/* error while decoding - a value larger than we can handle */
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
|
|
return false;
|
|
}
|
|
switch (wp_data->object_property) {
|
|
case PROP_PRESENT_VALUE:
|
|
status = write_property_type_valid(
|
|
wp_data, &value, BACNET_APPLICATION_TAG_UNSIGNED_INT);
|
|
if (status) {
|
|
status = false;
|
|
if (value.type.Unsigned_Int <= UINT32_MAX) {
|
|
status = Multistate_Output_Present_Value_Write(
|
|
wp_data->object_instance, value.type.Unsigned_Int,
|
|
wp_data->priority, &wp_data->error_class,
|
|
&wp_data->error_code);
|
|
} else {
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
|
|
}
|
|
} else {
|
|
status = write_property_type_valid(
|
|
wp_data, &value, BACNET_APPLICATION_TAG_NULL);
|
|
if (status) {
|
|
status = Multistate_Output_Present_Value_Relinquish_Write(
|
|
wp_data->object_instance, wp_data->priority,
|
|
&wp_data->error_class, &wp_data->error_code);
|
|
}
|
|
}
|
|
break;
|
|
case PROP_OUT_OF_SERVICE:
|
|
status = write_property_type_valid(
|
|
wp_data, &value, BACNET_APPLICATION_TAG_BOOLEAN);
|
|
if (status) {
|
|
Multistate_Output_Out_Of_Service_Set(
|
|
wp_data->object_instance, value.type.Boolean);
|
|
}
|
|
break;
|
|
case PROP_RELINQUISH_DEFAULT:
|
|
status = write_property_type_valid(
|
|
wp_data, &value, BACNET_APPLICATION_TAG_UNSIGNED_INT);
|
|
if (status) {
|
|
status = false;
|
|
if (value.type.Unsigned_Int <= UINT32_MAX) {
|
|
status = Multistate_Output_Relinquish_Default_Write(
|
|
wp_data->object_instance, value.type.Unsigned_Int,
|
|
&wp_data->error_class, &wp_data->error_code);
|
|
} else {
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (property_lists_member(
|
|
Properties_Required, Properties_Optional,
|
|
Properties_Proprietary, wp_data->object_property)) {
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
|
|
} else {
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Sets a callback used when present-value is written from BACnet
|
|
* @param cb - callback used to provide indications
|
|
*/
|
|
void Multistate_Output_Write_Present_Value_Callback_Set(
|
|
multistate_output_write_present_value_callback cb)
|
|
{
|
|
Multistate_Output_Write_Present_Value_Callback = cb;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a new object and adds it to the object list
|
|
* @param object_instance - object-instance number of the object
|
|
* @return the object-instance that was created, or BACNET_MAX_INSTANCE
|
|
*/
|
|
uint32_t Multistate_Output_Create(uint32_t object_instance)
|
|
{
|
|
struct object_data *pObject = NULL;
|
|
int index = 0;
|
|
unsigned priority = 0;
|
|
|
|
if (object_instance > BACNET_MAX_INSTANCE) {
|
|
return BACNET_MAX_INSTANCE;
|
|
} else if (object_instance == BACNET_MAX_INSTANCE) {
|
|
/* wildcard instance */
|
|
/* the Object_Identifier property of the newly created object
|
|
shall be initialized to a value that is unique within the
|
|
responding BACnet-user device. The method used to generate
|
|
the object identifier is a local matter.*/
|
|
object_instance = Keylist_Next_Empty_Key(Object_List, 1);
|
|
}
|
|
pObject = Keylist_Data(Object_List, object_instance);
|
|
if (!pObject) {
|
|
pObject = calloc(1, sizeof(struct object_data));
|
|
if (pObject) {
|
|
pObject->Object_Name = NULL;
|
|
pObject->State_Text = Default_State_Text;
|
|
pObject->Out_Of_Service = false;
|
|
pObject->Reliability = RELIABILITY_NO_FAULT_DETECTED;
|
|
pObject->Changed = false;
|
|
for (priority = 0; priority < BACNET_MAX_PRIORITY; priority++) {
|
|
pObject->Relinquished[priority] = true;
|
|
pObject->Priority_Array[priority] = 0;
|
|
}
|
|
pObject->Relinquish_Default = 1;
|
|
/* add to list */
|
|
index = Keylist_Data_Add(Object_List, object_instance, pObject);
|
|
if (index < 0) {
|
|
free(pObject);
|
|
return BACNET_MAX_INSTANCE;
|
|
}
|
|
} else {
|
|
return BACNET_MAX_INSTANCE;
|
|
}
|
|
}
|
|
|
|
return object_instance;
|
|
}
|
|
|
|
/**
|
|
* @brief Delete an object and its data from the object list
|
|
* @param object_instance - object-instance number of the object
|
|
* @return true if the object is deleted
|
|
*/
|
|
bool Multistate_Output_Delete(uint32_t object_instance)
|
|
{
|
|
bool status = false;
|
|
struct object_data *pObject = NULL;
|
|
|
|
pObject = Keylist_Data_Delete(Object_List, object_instance);
|
|
if (pObject) {
|
|
free(pObject);
|
|
status = true;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Cleans up the object list and its data
|
|
*/
|
|
void Multistate_Output_Cleanup(void)
|
|
{
|
|
struct object_data *pObject;
|
|
|
|
if (Object_List) {
|
|
do {
|
|
pObject = Keylist_Data_Pop(Object_List);
|
|
if (pObject) {
|
|
free(pObject);
|
|
}
|
|
} while (pObject);
|
|
Keylist_Delete(Object_List);
|
|
Object_List = NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Initializes the object list
|
|
*/
|
|
void Multistate_Output_Init(void)
|
|
{
|
|
if (!Object_List) {
|
|
Object_List = Keylist_Create();
|
|
}
|
|
}
|