/* return apdu len, or BACNET_STATUS_ERROR on error */ int Analog_Value_Read_Property( BACNET_READ_PROPERTY_DATA * rpdata) { int len = 0; int apdu_len = 0; /* return value */ BACNET_BIT_STRING bit_string; BACNET_CHARACTER_STRING char_string; float real_value = (float) 1.414; unsigned object_index = 0; unsigned i = 0; bool state = false; uint8_t *apdu = NULL; ANALOG_VALUE_DESCR *CurrentAV; if ((rpdata == NULL) || (rpdata->application_data == NULL) || (rpdata->application_data_len == 0)) { return 0; } apdu = rpdata->application_data; object_index = Analog_Value_Instance_To_Index(rpdata->object_instance); if (object_index < MAX_ANALOG_VALUES) CurrentAV = &AV_Descr[object_index]; else return BACNET_STATUS_ERROR; switch (rpdata->object_property) { case PROP_OBJECT_IDENTIFIER: apdu_len = encode_application_object_id(&apdu[0], OBJECT_ANALOG_VALUE, rpdata->object_instance); break; case PROP_OBJECT_NAME: case PROP_DESCRIPTION: Analog_Value_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_ANALOG_VALUE); break; case PROP_PRESENT_VALUE: real_value = Analog_Value_Present_Value(rpdata->object_instance); apdu_len = encode_application_real(&apdu[0], real_value); break; case PROP_STATUS_FLAGS: bitstring_init(&bit_string); #if defined(INTRINSIC_REPORTING) bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, CurrentAV->Event_State ? true : false); #else bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false); #endif bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false); bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false); bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, CurrentAV->Out_Of_Service); apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_EVENT_STATE: #if defined(INTRINSIC_REPORTING) apdu_len = encode_application_enumerated(&apdu[0], CurrentAV->Event_State); #else apdu_len = encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL); #endif break; case PROP_OUT_OF_SERVICE: state = CurrentAV->Out_Of_Service; apdu_len = encode_application_boolean(&apdu[0], state); break; case PROP_UNITS: apdu_len = encode_application_enumerated(&apdu[0], CurrentAV->Units); break; #if defined(INTRINSIC_REPORTING) case PROP_TIME_DELAY: apdu_len = encode_application_unsigned(&apdu[0], CurrentAV->Time_Delay); break; case PROP_NOTIFICATION_CLASS: apdu_len = encode_application_unsigned(&apdu[0], CurrentAV->Notification_Class); break; case PROP_HIGH_LIMIT: apdu_len = encode_application_real(&apdu[0], CurrentAV->High_Limit); break; case PROP_LOW_LIMIT: apdu_len = encode_application_real(&apdu[0], CurrentAV->Low_Limit); break; case PROP_DEADBAND: apdu_len = encode_application_real(&apdu[0], CurrentAV->Deadband); break; case PROP_LIMIT_ENABLE: bitstring_init(&bit_string); bitstring_set_bit(&bit_string, 0, (CurrentAV-> Limit_Enable & EVENT_LOW_LIMIT_ENABLE) ? true : false); bitstring_set_bit(&bit_string, 1, (CurrentAV-> Limit_Enable & EVENT_HIGH_LIMIT_ENABLE) ? true : false); apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_EVENT_ENABLE: bitstring_init(&bit_string); bitstring_set_bit(&bit_string, TRANSITION_TO_OFFNORMAL, (CurrentAV-> Event_Enable & EVENT_ENABLE_TO_OFFNORMAL) ? true : false); bitstring_set_bit(&bit_string, TRANSITION_TO_FAULT, (CurrentAV-> Event_Enable & EVENT_ENABLE_TO_FAULT) ? true : false); bitstring_set_bit(&bit_string, TRANSITION_TO_NORMAL, (CurrentAV-> Event_Enable & EVENT_ENABLE_TO_NORMAL) ? true : false); apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_ACKED_TRANSITIONS: bitstring_init(&bit_string); bitstring_set_bit(&bit_string, TRANSITION_TO_OFFNORMAL, CurrentAV->Acked_Transitions[TRANSITION_TO_OFFNORMAL]. bIsAcked); bitstring_set_bit(&bit_string, TRANSITION_TO_FAULT, CurrentAV->Acked_Transitions[TRANSITION_TO_FAULT].bIsAcked); bitstring_set_bit(&bit_string, TRANSITION_TO_NORMAL, CurrentAV->Acked_Transitions[TRANSITION_TO_NORMAL].bIsAcked); apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_NOTIFY_TYPE: apdu_len = encode_application_enumerated(&apdu[0], CurrentAV->Notify_Type ? NOTIFY_EVENT : NOTIFY_ALARM); break; case PROP_EVENT_TIME_STAMPS: /* Array element zero is the number of elements in the array */ if (rpdata->array_index == 0) apdu_len = encode_application_unsigned(&apdu[0], MAX_BACNET_EVENT_TRANSITION); /* if no index was specified, then try to encode the entire list */ /* into one packet. */ else if (rpdata->array_index == BACNET_ARRAY_ALL) { for (i = 0; i < MAX_BACNET_EVENT_TRANSITION; i++) {; len = encode_opening_tag(&apdu[apdu_len], TIME_STAMP_DATETIME); len += encode_application_date(&apdu[apdu_len + len], &CurrentAV->Event_Time_Stamps[i].date); len += encode_application_time(&apdu[apdu_len + len], &CurrentAV->Event_Time_Stamps[i].time); len += encode_closing_tag(&apdu[apdu_len + len], TIME_STAMP_DATETIME); /* add it if we have room */ if ((apdu_len + len) < MAX_APDU) apdu_len += len; else { rpdata->error_class = ERROR_CLASS_SERVICES; rpdata->error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT; apdu_len = BACNET_STATUS_ERROR; break; } } } else if (rpdata->array_index <= MAX_BACNET_EVENT_TRANSITION) { apdu_len = encode_opening_tag(&apdu[apdu_len], TIME_STAMP_DATETIME); apdu_len += encode_application_date(&apdu[apdu_len], &CurrentAV->Event_Time_Stamps[rpdata->array_index].date); apdu_len += encode_application_time(&apdu[apdu_len], &CurrentAV->Event_Time_Stamps[rpdata->array_index].time); apdu_len += encode_closing_tag(&apdu[apdu_len], TIME_STAMP_DATETIME); } else { rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX; apdu_len = BACNET_STATUS_ERROR; } break; #endif 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_PRIORITY_ARRAY) && (rpdata->object_property != PROP_EVENT_TIME_STAMPS) && (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; }
/* return apdu len, or -1 on error */ int Analog_Value_Read_Property( BACNET_READ_PROPERTY_DATA * rpdata) { int apdu_len = 0; /* return value */ BACNET_BIT_STRING bit_string; BACNET_CHARACTER_STRING char_string; float real_value = (float) 1.414; #if 0 int len = 0; unsigned object_index = 0; unsigned i = 0; bool state = false; #endif uint8_t *apdu = NULL; if ((rpdata == NULL) || (rpdata->application_data == NULL) || (rpdata->application_data_len == 0)) { return 0; } apdu = rpdata->application_data; switch (rpdata->object_property) { case PROP_OBJECT_IDENTIFIER: apdu_len = encode_application_object_id(&apdu[0], OBJECT_ANALOG_VALUE, rpdata->object_instance); break; case PROP_OBJECT_NAME: case PROP_DESCRIPTION: Analog_Value_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_ANALOG_VALUE); break; case PROP_PRESENT_VALUE: real_value = Analog_Value_Present_Value(rpdata->object_instance); apdu_len = encode_application_real(&apdu[0], real_value); break; case PROP_STATUS_FLAGS: bitstring_init(&bit_string); bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false); bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false); bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false); bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, false); apdu_len = encode_application_bitstring(&apdu[0], &bit_string); break; case PROP_EVENT_STATE: apdu_len = encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL); break; case PROP_OUT_OF_SERVICE: #if 0 object_index = Analog_Value_Instance_To_Index(rpdata->object_instance); state = Analog_Value_Out_Of_Service[object_index]; #endif apdu_len = encode_application_boolean(&apdu[0], false); break; case PROP_UNITS: apdu_len = encode_application_enumerated(&apdu[0], UNITS_PERCENT); break; #if 0 case PROP_PRIORITY_ARRAY: /* Array element zero is the number of elements in the array */ if (rpdata->array_index == 0) apdu_len = encode_application_unsigned(&apdu[0], BACNET_MAX_PRIORITY); /* if no index was specified, then try to encode the entire list */ /* into one packet. */ else if (rpdata->array_index == BACNET_ARRAY_ALL) { object_index = Analog_Value_Instance_To_Index(rpdata->object_instance); for (i = 0; i < BACNET_MAX_PRIORITY; i++) { /* FIXME: check if we have room before adding it to APDU */ if (Present_Value[object_index][i] == ANALOG_LEVEL_NULL) len = encode_application_null(&apdu[apdu_len]); else { real_value = Present_Value[object_index][i]; len = encode_application_real(&apdu[apdu_len], real_value); } /* add it if we have room */ if ((apdu_len + len) < MAX_APDU) apdu_len += len; else { rpdata->error_class = ERROR_CLASS_SERVICES; rpdata->error_code = ERROR_CODE_NO_SPACE_FOR_OBJECT; apdu_len = BACNET_STATUS_ERROR; break; } } } else { object_index = Analog_Value_Instance_To_Index(object_instance); if (rpdata->array_index <= BACNET_MAX_PRIORITY) { if (Present_Value[object_index][rpdata->array_index - 1] == ANALOG_LEVEL_NULL) apdu_len = encode_application_null(&apdu[0]); else { real_value = Present_Value[object_index][rpdata->array_index - 1]; apdu_len = encode_application_real(&apdu[0], real_value); } } else { rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX; apdu_len = BACNET_STATUS_ERROR; } } break; case PROP_RELINQUISH_DEFAULT: real_value = ANALOG_RELINQUISH_DEFAULT; apdu_len = encode_application_real(&apdu[0], real_value); break; #endif 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) && #if 0 (rpdata->object_property != PROP_PRIORITY_ARRAY) && #endif (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; }