static BACNET_BINARY_PV Binary_Input_Present_Value( uint32_t object_instance) { BACNET_BINARY_PV value = BINARY_INACTIVE; unsigned index = 0; Binary_Input_Initialize(); index = Binary_Input_Instance_To_Index(object_instance); if (index < MAX_BINARY_INPUTS) { value = Present_Value[index]; } return value; }
/* assumption - object already exists, and has been bounds checked */ int Binary_Input_Encode_Property_APDU( uint8_t * apdu, uint32_t object_instance, BACNET_PROPERTY_ID property, int32_t array_index, BACNET_ERROR_CLASS * error_class, BACNET_ERROR_CODE * error_code) { int apdu_len = 0; /* return value */ BACNET_BIT_STRING bit_string; BACNET_CHARACTER_STRING char_string; BACNET_POLARITY polarity = POLARITY_NORMAL; BACNET_BINARY_PV value = BINARY_INACTIVE; (void) array_index; Binary_Input_Initialize(); switch (property) { case PROP_OBJECT_IDENTIFIER: apdu_len = encode_application_object_id(&apdu[0], OBJECT_BINARY_INPUT, object_instance); break; case PROP_OBJECT_NAME: case PROP_DESCRIPTION: /* note: object name must be unique in our device */ characterstring_init_ansi(&char_string, Binary_Input_Name(object_instance)); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_OBJECT_TYPE: apdu_len = encode_application_enumerated(&apdu[0], OBJECT_BINARY_INPUT); break; case PROP_PRESENT_VALUE: value = Binary_Input_Present_Value(object_instance); apdu_len = encode_application_enumerated(&apdu[0], 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); 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: /* 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: apdu_len = encode_application_boolean(&apdu[0], false); break; case PROP_POLARITY: apdu_len = encode_application_enumerated(&apdu[0], polarity); break; default: *error_class = ERROR_CLASS_PROPERTY; *error_code = ERROR_CODE_UNKNOWN_PROPERTY; apdu_len = -1; break; } return apdu_len; }
/* assumption - object already exists, and has been bounds checked */ int Binary_Input_Read_Property( BACNET_READ_PROPERTY_DATA * rpdata) { int apdu_len = 0; /* return value */ BACNET_BIT_STRING bit_string; BACNET_CHARACTER_STRING char_string; BACNET_POLARITY polarity = POLARITY_NORMAL; BACNET_BINARY_PV value = BINARY_INACTIVE; uint8_t *apdu = NULL; Binary_Input_Initialize(); 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_BINARY_INPUT, rpdata->object_instance); break; case PROP_OBJECT_NAME: case PROP_DESCRIPTION: /* note: object name must be unique in our device */ characterstring_init_ansi(&char_string, Binary_Input_Name(rpdata->object_instance)); apdu_len = encode_application_character_string(&apdu[0], &char_string); break; case PROP_OBJECT_TYPE: apdu_len = encode_application_enumerated(&apdu[0], OBJECT_BINARY_INPUT); break; case PROP_PRESENT_VALUE: value = Binary_Input_Present_Value(rpdata->object_instance); apdu_len = encode_application_enumerated(&apdu[0], 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); 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: /* 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: apdu_len = encode_application_boolean(&apdu[0], false); break; case PROP_POLARITY: apdu_len = encode_application_enumerated(&apdu[0], polarity); break; default: rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY; apdu_len = -1; break; } /* only array properties can have array options */ if ((apdu_len >= 0) && (rpdata->array_index != BACNET_ARRAY_ALL)) { rpdata->error_class = ERROR_CLASS_PROPERTY; rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY; apdu_len = -1; } return apdu_len; }