/************************************************************************** * * Copyright (C) 2015 Steve Karg * * 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. * *********************************************************************/ #include #include #include #include #include "bacdef.h" #include "bacdcode.h" #include "bacstr.h" #include "bacenum.h" #include "apdu.h" #include "dcc.h" #include "datalink.h" #include "rs485.h" #include "version.h" #include "nvmdata.h" #include "handlers.h" #include "bname.h" #include "stack.h" #include "nvmdata.h" /* objects */ #include "device.h" #include "ai.h" /* forward prototype */ int Device_Read_Property_Local(BACNET_READ_PROPERTY_DATA * rpdata); bool Device_Write_Property_Local(BACNET_WRITE_PROPERTY_DATA * wp_data); static struct my_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; object_value_list_function Object_Value_List; object_cov_function Object_COV; object_cov_clear_function Object_COV_Clear; } Object_Table[] = { { OBJECT_DEVICE, NULL, Device_Count, Device_Index_To_Instance, Device_Valid_Object_Instance_Number, Device_Object_Name, Device_Read_Property_Local, Device_Write_Property_Local, Device_Property_Lists, NULL, NULL, NULL}, { OBJECT_ANALOG_INPUT, Analog_Input_Init, Analog_Input_Count, Analog_Input_Index_To_Instance, Analog_Input_Valid_Instance, Analog_Input_Object_Name, Analog_Input_Read_Property, Analog_Input_Write_Property, Analog_Input_Property_Lists, NULL, NULL, NULL}, { MAX_BACNET_OBJECT_TYPE, NULL, NULL, NULL, NULL, NULL, NULL, NULL} }; /* note: you really only need to define variables for properties that are writable or that may change. The properties that are constant can be hard coded into the read-property encoding. */ static uint32_t Object_Instance_Number; static BACNET_DEVICE_STATUS System_Status = STATUS_OPERATIONAL; static uint32_t Database_Revision; static BACNET_REINITIALIZED_STATE Reinitialize_State = BACNET_REINIT_IDLE; /* These three arrays are used by the ReadPropertyMultiple handler */ static const int Device_Properties_Required[] = { PROP_OBJECT_IDENTIFIER, PROP_OBJECT_NAME, PROP_OBJECT_TYPE, PROP_SYSTEM_STATUS, PROP_VENDOR_NAME, PROP_VENDOR_IDENTIFIER, PROP_MODEL_NAME, PROP_FIRMWARE_REVISION, PROP_APPLICATION_SOFTWARE_VERSION, PROP_PROTOCOL_VERSION, PROP_PROTOCOL_REVISION, PROP_PROTOCOL_SERVICES_SUPPORTED, PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED, PROP_OBJECT_LIST, PROP_MAX_APDU_LENGTH_ACCEPTED, PROP_SEGMENTATION_SUPPORTED, PROP_APDU_TIMEOUT, PROP_NUMBER_OF_APDU_RETRIES, PROP_DEVICE_ADDRESS_BINDING, PROP_DATABASE_REVISION, -1 }; static const int Device_Properties_Optional[] = { PROP_MAX_MASTER, PROP_MAX_INFO_FRAMES, PROP_DESCRIPTION, PROP_LOCATION, -1 }; static const int Device_Properties_Proprietary[] = { -1 }; static struct my_object_functions *Device_Objects_Find_Functions(BACNET_OBJECT_TYPE Object_Type) { struct my_object_functions *pObject = NULL; pObject = &Object_Table[0]; while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) { /* handle each object type */ if (pObject->Object_Type == Object_Type) { return (pObject); } pObject++; } return (NULL); } /* Encodes the property APDU and returns the length, or sets the error, and returns BACNET_STATUS_ERROR */ int Device_Read_Property(BACNET_READ_PROPERTY_DATA * rpdata) { int apdu_len = BACNET_STATUS_ERROR; struct my_object_functions *pObject = NULL; /* initialize the default return values */ rpdata->error_class = ERROR_CLASS_OBJECT; rpdata->error_code = ERROR_CODE_UNKNOWN_OBJECT; pObject = Device_Objects_Find_Functions(rpdata->object_type); if (pObject != NULL) { if (pObject->Object_Valid_Instance && pObject->Object_Valid_Instance(rpdata->object_instance)) { if (pObject->Object_Read_Property) { apdu_len = pObject->Object_Read_Property(rpdata); } } } return apdu_len; } bool Device_Write_Property(BACNET_WRITE_PROPERTY_DATA * wp_data) { bool status = false; struct my_object_functions *pObject = NULL; /* initialize the default return values */ pObject = Device_Objects_Find_Functions(wp_data->object_type); if (pObject) { if (pObject->Object_Valid_Instance && pObject->Object_Valid_Instance(wp_data->object_instance)) { if (pObject->Object_Write_Property) { status = pObject->Object_Write_Property(wp_data); } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED; } } else { wp_data->error_class = ERROR_CLASS_OBJECT; wp_data->error_code = ERROR_CODE_UNKNOWN_OBJECT; } } else { wp_data->error_class = ERROR_CLASS_OBJECT; wp_data->error_code = ERROR_CODE_UNKNOWN_OBJECT; } return status; } /* for a given object type, returns the special property list */ void Device_Objects_Property_List(BACNET_OBJECT_TYPE object_type, struct special_property_list_t *pPropertyList) { struct my_object_functions *pObject = NULL; pPropertyList->Required.pList = NULL; pPropertyList->Optional.pList = NULL; pPropertyList->Proprietary.pList = NULL; /* If we can find an entry for the required object type * and there is an Object_List_RPM fn ptr then call it * to populate the pointers to the individual list counters. */ pObject = Device_Objects_Find_Functions(object_type); if ((pObject != NULL) && (pObject->Object_RPM_List != NULL)) { pObject->Object_RPM_List(&pPropertyList->Required.pList, &pPropertyList->Optional.pList, &pPropertyList->Proprietary.pList); } /* Fetch the counts if available otherwise zero them */ pPropertyList->Required.count = pPropertyList->Required.pList == NULL ? 0 : property_list_count(pPropertyList->Required.pList); pPropertyList->Optional.count = pPropertyList->Optional.pList == NULL ? 0 : property_list_count(pPropertyList->Optional.pList); pPropertyList->Proprietary.count = pPropertyList->Proprietary.pList == NULL ? 0 : property_list_count(pPropertyList->Proprietary.pList); return; } void Device_Property_Lists(const int **pRequired, const int **pOptional, const int **pProprietary) { if (pRequired) *pRequired = Device_Properties_Required; if (pOptional) *pOptional = Device_Properties_Optional; if (pProprietary) *pProprietary = Device_Properties_Proprietary; return; } unsigned Device_Count(void) { return 1; } uint32_t Device_Index_To_Instance(unsigned index) { index = index; return Object_Instance_Number; } static char *Device_Name_Default( void) { static char text_string[32]; /* okay for single thread */ sprintf(text_string, "DEVICE-%lu", Object_Instance_Number); return text_string; } bool Device_Object_Name( uint32_t object_instance, BACNET_CHARACTER_STRING * object_name) { bool status = false; if (object_instance == Object_Instance_Number) { bacnet_name(NVM_DEVICE_NAME, object_name, Device_Name_Default()); status = true; } return status; } const char *Device_Model_Name(void) { return "XMEGA-A3BU Xplained"; } const char *Device_Vendor_Name(void) { return BACNET_VENDOR_NAME; } const char *Device_Firmware_Revision(void) { return "1.0"; } const char *Device_Application_Software_Version(void) { return BACNET_VERSION_TEXT; } bool Device_Reinitialize(BACNET_REINITIALIZE_DEVICE_DATA * rd_data) { bool status = false; if (characterstring_ansi_same(&rd_data->password, "filister")) { Reinitialize_State = rd_data->state; dcc_set_status_duration(COMMUNICATION_ENABLE, 0); /* Note: you could use a mix of state and password to multiple things */ /* note: you probably want to restart *after* the simple ack has been sent from the return handler so just set a flag from here */ status = true; } else { rd_data->error_class = ERROR_CLASS_SECURITY; rd_data->error_code = ERROR_CODE_PASSWORD_FAILURE; } return status; } BACNET_REINITIALIZED_STATE Device_Reinitialized_State(void) { return Reinitialize_State; } void Device_Init(object_functions_t * object_table) { struct my_object_functions *pObject = NULL; /* we don't use the object table passed in since there is extra stuff we don't need in there. */ (void) object_table; /* our local object table */ pObject = &Object_Table[0]; while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) { if (pObject->Object_Init) { pObject->Object_Init(); } pObject++; } dcc_set_status_duration(COMMUNICATION_ENABLE, 0); } /* methods to manipulate the data */ uint32_t Device_Object_Instance_Number(void) { return Object_Instance_Number; } bool Device_Set_Object_Instance_Number(uint32_t object_id) { bool status = true; /* return value */ if (object_id <= BACNET_MAX_INSTANCE) { if (object_id != Object_Instance_Number) { Device_Inc_Database_Revision(); Object_Instance_Number = object_id; } } else status = false; return status; } bool Device_Valid_Object_Instance_Number(uint32_t object_id) { return (Object_Instance_Number == object_id); } BACNET_DEVICE_STATUS Device_System_Status(void) { return System_Status; } int Device_Set_System_Status(BACNET_DEVICE_STATUS status, bool local) { /*return value - 0 = ok, -1 = bad value, -2 = not allowed */ int result = -1; if (status < MAX_DEVICE_STATUS) { System_Status = status; result = 0; } return result; } uint16_t Device_Vendor_Identifier(void) { return BACNET_VENDOR_ID; } BACNET_SEGMENTATION Device_Segmentation_Supported(void) { return SEGMENTATION_NONE; } uint32_t Device_Database_Revision(void) { return Database_Revision; } void Device_Inc_Database_Revision(void) { Database_Revision++; } bool Device_Encode_Value_List( BACNET_OBJECT_TYPE object_type, uint32_t object_instance, BACNET_PROPERTY_VALUE * value_list) { bool status = false; /* Ever the pessamist! */ struct my_object_functions *pObject = NULL; pObject = Device_Objects_Find_Functions(object_type); if (pObject != NULL) { if (pObject->Object_Valid_Instance && pObject->Object_Valid_Instance(object_instance)) { if (pObject->Object_Value_List) { status = pObject->Object_Value_List( object_instance, value_list); } } } return (status); } bool Device_COV( BACNET_OBJECT_TYPE object_type, uint32_t object_instance) { bool status = false; /* Ever the pessamist! */ struct my_object_functions *pObject = NULL; pObject = Device_Objects_Find_Functions(object_type); if (pObject != NULL) { if (pObject->Object_Valid_Instance && pObject->Object_Valid_Instance(object_instance)) { if (pObject->Object_COV) { status = pObject->Object_COV( object_instance); } } } return (status); } void Device_COV_Clear( BACNET_OBJECT_TYPE object_type, uint32_t object_instance) { struct my_object_functions *pObject = NULL; pObject = Device_Objects_Find_Functions(object_type); if (pObject != NULL) { if (pObject->Object_Valid_Instance && pObject->Object_Valid_Instance(object_instance)) { if (pObject->Object_COV_Clear) { pObject->Object_COV_Clear(object_instance); } } } } bool Device_Value_List_Supported( BACNET_OBJECT_TYPE object_type) { bool status = false; /* Ever the pessimist! */ struct my_object_functions *pObject = NULL; pObject = Device_Objects_Find_Functions(object_type); if (pObject != NULL) { if (pObject->Object_Value_List) { status = true; } } return (status); } /* Since many network clients depend on the object list */ /* for discovery, it must be consistent! */ unsigned Device_Object_List_Count(void) { unsigned count = 0; /* number of objects */ struct my_object_functions *pObject = NULL; /* initialize the default return values */ pObject = &Object_Table[0]; while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) { if (pObject->Object_Count) { count += pObject->Object_Count(); } pObject++; } return count; } bool Device_Object_List_Identifier(unsigned array_index, int *object_type, uint32_t * instance) { bool status = false; unsigned count = 0; unsigned object_index = 0; struct my_object_functions *pObject = NULL; /* array index zero is length - so invalid */ if (array_index == 0) { return status; } object_index = array_index - 1; /* initialize the default return values */ pObject = &Object_Table[0]; while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) { if (pObject->Object_Count && pObject->Object_Index_To_Instance) { object_index -= count; count = pObject->Object_Count(); if (object_index < count) { *object_type = pObject->Object_Type; *instance = pObject->Object_Index_To_Instance(object_index); status = true; break; } } pObject++; } return status; } bool Device_Valid_Object_Name(BACNET_CHARACTER_STRING * object_name1, int *object_type, uint32_t * object_instance) { bool found = false; int type = 0; uint32_t instance; unsigned max_objects = 0, i = 0; bool check_id = false; BACNET_CHARACTER_STRING object_name2; struct my_object_functions *pObject = NULL; max_objects = Device_Object_List_Count(); for (i = 1; i <= max_objects; i++) { check_id = Device_Object_List_Identifier(i, &type, &instance); if (check_id) { pObject = Device_Objects_Find_Functions((BACNET_OBJECT_TYPE) type); if ((pObject != NULL) && (pObject->Object_Name != NULL) && (pObject->Object_Name(instance, &object_name2) && characterstring_same(object_name1, &object_name2))) { found = true; if (object_type) { *object_type = type; } if (object_instance) { *object_instance = instance; } break; } } } return found; } bool Device_Valid_Object_Id(int object_type, uint32_t object_instance) { bool status = false; /* return value */ struct my_object_functions *pObject = NULL; pObject = Device_Objects_Find_Functions((BACNET_OBJECT_TYPE) object_type); if ((pObject != NULL) && (pObject->Object_Valid_Instance != NULL)) { status = pObject->Object_Valid_Instance(object_instance); } return status; } bool Device_Object_Name_Copy(BACNET_OBJECT_TYPE object_type, uint32_t object_instance, BACNET_CHARACTER_STRING * object_name) { struct my_object_functions *pObject = NULL; bool found = false; pObject = Device_Objects_Find_Functions(object_type); if ((pObject != NULL) && (pObject->Object_Name != NULL)) { found = pObject->Object_Name(object_instance, object_name); } return found; } /* return the length of the apdu encoded or BACNET_STATUS_ERROR for error */ int Device_Read_Property_Local(BACNET_READ_PROPERTY_DATA * rpdata) { int apdu_len = 0; /* return value */ int len = 0; /* apdu len intermediate value */ BACNET_BIT_STRING bit_string = { 0 }; BACNET_CHARACTER_STRING char_string = { 0 }; unsigned i = 0; int object_type = 0; uint32_t instance = 0; unsigned count = 0; uint8_t *apdu = NULL; struct my_object_functions *pObject = NULL; if ((rpdata->application_data == NULL) || (rpdata->application_data_len == 0)) { return 0; } apdu = rpdata->application_data; switch ((int) rpdata->object_property) { case PROP_OBJECT_IDENTIFIER: apdu_len = encode_application_object_id(&apdu[0], rpdata->object_type, rpdata->object_instance); break; case PROP_OBJECT_NAME: Device_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], rpdata->object_type); break; case PROP_DESCRIPTION: bacnet_name(NVM_DEVICE_DESCRIPTION, &char_string, "default description"); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_LOCATION: bacnet_name(NVM_DEVICE_LOCATION, &char_string, "default location"); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_SYSTEM_STATUS: apdu_len = encode_application_enumerated(&apdu[0], Device_System_Status()); break; case PROP_VENDOR_NAME: characterstring_init_ansi(&char_string, Device_Vendor_Name()); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_VENDOR_IDENTIFIER: apdu_len = encode_application_unsigned(&apdu[0], BACNET_VENDOR_ID); break; case PROP_MODEL_NAME: characterstring_init_ansi(&char_string, Device_Model_Name()); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_FIRMWARE_REVISION: characterstring_init_ansi(&char_string, Device_Firmware_Revision()); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_APPLICATION_SOFTWARE_VERSION: characterstring_init_ansi(&char_string, Device_Application_Software_Version()); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_PROTOCOL_VERSION: apdu_len = encode_application_unsigned(&apdu[0], BACNET_PROTOCOL_VERSION); break; case PROP_PROTOCOL_REVISION: apdu_len = encode_application_unsigned(&apdu[0], BACNET_PROTOCOL_REVISION); break; case PROP_PROTOCOL_SERVICES_SUPPORTED: /* Note: list of services that are executed, not initiated. */ bitstring_init(&bit_string); for (i = 0; i < MAX_BACNET_SERVICES_SUPPORTED; i++) { /* automatic lookup based on handlers set */ bitstring_set_bit(&bit_string, (uint8_t) i, apdu_service_supported((BACNET_SERVICES_SUPPORTED) i)); } apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED: /* Note: this is the list of objects that can be in this device, not a list of objects that this device can access */ bitstring_init(&bit_string); for (i = 0; i < MAX_ASHRAE_OBJECT_TYPE; i++) { /* initialize all the object types to not-supported */ bitstring_set_bit(&bit_string, (uint8_t) i, false); } /* set the object types with objects to supported */ i = 0; pObject = &Object_Table[i]; while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) { if ((pObject->Object_Count) && (pObject->Object_Count() > 0)) { bitstring_set_bit(&bit_string, pObject->Object_Type, true); } pObject++; } apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_OBJECT_LIST: count = Device_Object_List_Count(); /* Array element zero is the number of objects in the list */ if (rpdata->array_index == 0) apdu_len = encode_application_unsigned(&apdu[0], count); /* if no index was specified, then try to encode the entire list */ /* into one packet. Note that more than likely you will have */ /* to return an error if the number of encoded objects exceeds */ /* your maximum APDU size. */ else if (rpdata->array_index == BACNET_ARRAY_ALL) { for (i = 1; i <= count; i++) { if (Device_Object_List_Identifier(i, &object_type, &instance)) { len = encode_application_object_id(&apdu[apdu_len], object_type, instance); apdu_len += len; /* assume next one is the same size as this one */ /* can we all fit into the APDU? */ if ((apdu_len + len) >= MAX_APDU) { /* Abort response */ rpdata->error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED; apdu_len = BACNET_STATUS_ABORT; break; } } else { /* error: internal error? */ rpdata->error_class = ERROR_CLASS_SERVICES; rpdata->error_code = ERROR_CODE_OTHER; apdu_len = BACNET_STATUS_ERROR; break; } } } else { if (Device_Object_List_Identifier(rpdata->array_index, &object_type, &instance)) apdu_len = encode_application_object_id(&apdu[0], object_type, instance); else { rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX; apdu_len = BACNET_STATUS_ERROR; } } break; case PROP_MAX_APDU_LENGTH_ACCEPTED: apdu_len = encode_application_unsigned(&apdu[0], MAX_APDU); break; case PROP_SEGMENTATION_SUPPORTED: apdu_len = encode_application_enumerated(&apdu[0], Device_Segmentation_Supported()); break; case PROP_APDU_TIMEOUT: apdu_len = encode_application_unsigned(&apdu[0], apdu_timeout()); break; case PROP_NUMBER_OF_APDU_RETRIES: apdu_len = encode_application_unsigned(&apdu[0], apdu_retries()); break; case PROP_DEVICE_ADDRESS_BINDING: /* FIXME: encode the list here, if it exists */ break; case PROP_DATABASE_REVISION: apdu_len = encode_application_unsigned(&apdu[0], Device_Database_Revision()); break; case PROP_MAX_INFO_FRAMES: apdu_len = encode_application_unsigned(&apdu[0], dlmstp_max_info_frames()); break; case PROP_MAX_MASTER: apdu_len = encode_application_unsigned(&apdu[0], dlmstp_max_master()); break; case 512: apdu_len = encode_application_unsigned(&apdu[0], stack_size()); break; case 513: apdu_len = encode_application_unsigned(&apdu[0], stack_unused()); break; default: rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY; apdu_len = BACNET_STATUS_ERROR; break; } /* only array properties can have array options */ if ((apdu_len >= 0) && (rpdata->object_property != PROP_OBJECT_LIST) && (rpdata->array_index != BACNET_ARRAY_ALL)) { rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY; apdu_len = BACNET_STATUS_ERROR; } return apdu_len; } bool Device_Write_Property_Local(BACNET_WRITE_PROPERTY_DATA * wp_data) { bool status = false; /* return value - false=error */ int len = 0; BACNET_APPLICATION_DATA_VALUE value; uint8_t max_master = 0; /* decode the some of the request */ len = bacapp_decode_application_data(wp_data->application_data, wp_data->application_data_len, &value); /* FIXME: len < application_data_len: more data? */ 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; } if ((wp_data->object_property != PROP_OBJECT_LIST) && (wp_data->array_index != BACNET_ARRAY_ALL)) { /* only array properties can have array options */ wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY; return false; } switch ((int) wp_data->object_property) { case PROP_OBJECT_IDENTIFIER: if (value.tag == BACNET_APPLICATION_TAG_OBJECT_ID) { if ((value.type.Object_Id.type == OBJECT_DEVICE) && (Device_Set_Object_Instance_Number(value.type.Object_Id. instance))) { nvm_write(NVM_DEVICE_0, (uint8_t *) & value.type.Object_Id.instance, 4); /* we could send an I-Am broadcast to let the world know */ status = true; } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE; } } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_MAX_INFO_FRAMES: if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) { if (value.type.Unsigned_Int <= 255) { dlmstp_set_max_info_frames(value.type.Unsigned_Int); status = true; } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE; } } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_MAX_MASTER: if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) { if ((value.type.Unsigned_Int > 0) && (value.type.Unsigned_Int <= 127)) { max_master = value.type.Unsigned_Int; dlmstp_set_max_master(max_master); nvm_write(NVM_MAX_MASTER, &max_master, 1); status = true; } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE; } } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_OBJECT_NAME: if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) { status = bacnet_name_write_unique(NVM_DEVICE_NAME, wp_data->object_type, wp_data->object_instance, &value.type.Character_String, &wp_data->error_class, &wp_data->error_code); } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_DESCRIPTION: if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) { status = bacnet_name_write(NVM_DEVICE_DESCRIPTION, &value.type.Character_String, &wp_data->error_class, &wp_data->error_code); } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_LOCATION: if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) { status = bacnet_name_write(NVM_DEVICE_LOCATION, &value.type.Character_String, &wp_data->error_class, &wp_data->error_code); } else { wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE; } break; case PROP_OBJECT_TYPE: case PROP_VENDOR_NAME: case PROP_FIRMWARE_REVISION: case PROP_APPLICATION_SOFTWARE_VERSION: case PROP_DAYLIGHT_SAVINGS_STATUS: case PROP_PROTOCOL_VERSION: case PROP_PROTOCOL_REVISION: case PROP_PROTOCOL_SERVICES_SUPPORTED: case PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED: case PROP_OBJECT_LIST: case PROP_MAX_APDU_LENGTH_ACCEPTED: case PROP_SEGMENTATION_SUPPORTED: case PROP_DEVICE_ADDRESS_BINDING: case PROP_DATABASE_REVISION: case 512: case 513: wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED; break; default: wp_data->error_class = ERROR_CLASS_PROPERTY; wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY; break; } return status; }