########################################################################### # # Copyright (c) 2020-2024 Diality Inc. - All Rights Reserved. # # THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN # WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER. # # @file gen_dialysate.py # # @author (last) Zoltan Miskolci # @date (last) 07-Jan-2026 # @author (original) Micahel Garthwaite # @date (original) 29-Oct-2020 # ############################################################################ import struct from logging import Logger from leahi_dialin.common.constants import NO_RESET from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions from leahi_dialin.common.override_templates import cmd_generic_broadcast_interval_override, cmd_generic_override from leahi_dialin.protocols.CAN import DenaliChannels from leahi_dialin.utils.base import AbstractSubSystem, publish from leahi_dialin.utils.conversions import integer_to_bytearray, float_to_bytearray class DDGenDialysate(AbstractSubSystem): """ Gen Dialysate Dialysate Delivery (DD) Dialin API sub-class for gen dialysate related commands. """ def __init__(self, can_interface, logger: Logger): """ @param can_interface: Denali Can Messenger object """ super().__init__() self.can_interface = can_interface self.logger = logger if self.can_interface is not None: channel_id = DenaliChannels.dd_sync_broadcast_ch_id self.msg_id_dd_gen_dialysate_mode_data = MsgIds.MSG_ID_DD_GEN_DIALYSATE_MODE_DATA.value self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_dd_gen_dialysate_mode_data, self._handler_gen_dialysate_sync) self.execution_state = 0 self.dialysate_delivery_in_progress = 0 self.dialysate_good_to_deliver = 0 self.targetQd = 0.0 self.isBalancingChamberSwitchingActive = 0 self.dd_gen_dialysate_timestamp = 0 @publish(["msg_id_dd_gen_dialysate_mode_data", "execution_state", "dialysate_delivery_in_progress", "dialysate_good_to_deliver", "targetQd", "isBalancingChamberSwitchingActive", "dd_gen_dialysate_timestamp"]) def _handler_gen_dialysate_sync(self, message, timestamp=0.0): """ Handles published gen dialysate data messages. @param message: published gen dialysate data message @return: None """ self.execution_state = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0] self.dialysate_delivery_in_progress = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_2:MsgFieldPositions.END_POS_FIELD_2]))[0] self.dialysate_good_to_deliver = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_3:MsgFieldPositions.END_POS_FIELD_3]))[0] self.targetQd = struct.unpack('f', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0] self.dd_gen_dialysate_timestamp = timestamp def cmd_gen_dialysate_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: """ Constructs and sends the gen dialysate data broadcast interval override command Constraints: Must be logged into DD. Given interval must be non-zero and a multiple of the DD general task interval (50 ms). @param ms: integer - interval (in ms) to override with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ return cmd_generic_broadcast_interval_override( ms = ms, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_GEND_MODE_DATA_PUBLISH_OVERRIDE_REQUEST, module_name = 'DD Gen Dialysate', logger = self.logger, can_interface = self.can_interface) def cmd_dialysate_delivery_in_progress_override(self, in_progress: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dialysate delivery in progress override command @param in_progress: int - value to override in progress status @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_byte_array = integer_to_bytearray(reset) inprog = integer_to_bytearray(in_progress) payload = reset_byte_array + inprog return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_DIAL_DELIVERY_IN_PROGRESS_OVERRIDE_REQUEST, entity_name = f'DD Dialysate Delivery in progress', override_text = str(in_progress), logger = self.logger, can_interface = self.can_interface) def cmd_dialysate_delivery_good_to_deliver_override(self, delivery: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dialysate delivery good to deliver override command @param delivery: int - value to override in delivery status @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_byte_array = integer_to_bytearray(reset) dev = integer_to_bytearray(delivery) payload = reset_byte_array + dev return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_DIAL_DELIVERY_GOOD_TO_DELIVER_OVERRIDE_REQUEST, entity_name = f'DD Dialysate Delivery is good to deliver', override_text = str(delivery), logger = self.logger, can_interface = self.can_interface) def cmd_hydraulics_chamber_target_temperature_override(self, temperature: float, reset: int = NO_RESET) -> int: """ Constructs and sends the hydraulic fluid temperature override command @param temperature: float - value to override in fluid temperature. @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_byte_array = integer_to_bytearray(reset) tmp = float_to_bytearray(temperature) payload = reset_byte_array + tmp return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_HYD_CHAMBER_TARGET_TEMP_OVERRIDE_REQUEST, entity_name = f'DD Hydraulics Chamber target Temperature', override_text = str(temperature), logger = self.logger, can_interface = self.can_interface) def cmd_dialysate_delivery_set_state_override(self, state: int) -> int: """ Constructs and sends the set execution state override command @param state: int - value to override state @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ sts = integer_to_bytearray(state) payload = sts return cmd_generic_override( payload = payload, reset = NO_RESET, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_GEND_EXEC_STATE_OVERRIDE_REQUEST, entity_name = f'DD Dialysate Delivery set state', override_text = str(state), logger = self.logger, can_interface = self.can_interface) def cmd_stop_gen_mode_override(self, state: int, reset: int = NO_RESET) -> int: """ Constructs and sends stop gen mode override request @param state: int - value to override state @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ reset_value = integer_to_bytearray(reset) interval_value = integer_to_bytearray(state) payload = reset_value + interval_value return cmd_generic_override( payload = payload, reset = reset, channel_id = DenaliChannels.dialin_to_dd_ch_id, msg_id = MsgIds.MSG_ID_DD_STOP_GEN_DIALYSATE_MODE_OVERRIDE_REQUEST, entity_name = f'DD Dialysate Delivery pre gen mode', override_text = str(state), logger = self.logger, can_interface = self.can_interface)