MGT handler

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Robin Mueller committed 2026-09-24 16:23:31 +02:00
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@@ -1,119 +1,596 @@
use std::sync::mpsc::{Receiver, SyncSender, TryRecvError};
use std::collections::VecDeque;
use std::sync::mpsc;
use std::time::{Duration, Instant};
use types::acs::mgt::{Mode, request::ModeRequest, response::ModeReport};
use satrs::spacepackets::CcsdsPacketIdAndPsc;
use satrs_example::{HkHelperSingleSet, TmtcQueues};
use satrs_minisim::acs::mgt as sim_mgt;
use satrs_minisim::{SimReply, SimRequestWithTime};
use types::acs::mgt::{
self, HkSet,
request::{ModeRequest, Request},
response::{ModeResponse, Response},
};
use types::pcdu::SwitchId;
use types::{ComponentId, DeviceMode, HkRequestType};
use crate::ccsds::pack_ccsds_tm_packet_for_now;
use crate::device_mode::{ModeTransitionEvent, SwitchAndModeHelper};
use crate::eps::PowerSwitchHelper;
/// Interface for ideal device which never fails.
#[derive(Default)]
pub struct DummyInterface {
dipole: sim_mgt::Dipole,
torque_end: Option<Instant>,
hk_requested: bool,
}
impl DummyInterface {
fn send(&mut self, request: sim_mgt::Request) {
match request {
sim_mgt::Request::ApplyTorque { duration, dipole } => {
self.dipole = dipole;
self.torque_end = Some(Instant::now() + duration);
}
sim_mgt::Request::RequestHk => self.hk_requested = true,
}
}
fn try_recv_hk(&mut self) -> Option<sim_mgt::HkSet> {
if !std::mem::take(&mut self.hk_requested) {
return None;
}
let torquing = self.torque_end.is_some_and(|end| Instant::now() < end);
Some(sim_mgt::HkSet {
dipole: if torquing {
self.dipole
} else {
sim_mgt::Dipole::default()
},
torquing,
})
}
}
/// Records all requests and returns injected HK replies.
#[derive(Default)]
pub struct TestInterface {
pub sent_requests: Vec<sim_mgt::Request>,
pub hk_replies: VecDeque<sim_mgt::HkSet>,
}
pub struct SimInterface {
pub sim_request_tx: mpsc::Sender<SimRequestWithTime>,
pub sim_reply_rx: mpsc::Receiver<SimReply>,
}
impl SimInterface {
fn send(&mut self, request: sim_mgt::Request) {
if let Err(e) = self
.sim_request_tx
.send(SimRequestWithTime::new_with_epoch_time(request))
{
log::error!("failed to send MGT SIM request: {e}");
}
}
fn try_recv_hk(&mut self) -> Option<sim_mgt::HkSet> {
let sim_reply = self.sim_reply_rx.try_recv().ok()?;
match sim_reply {
SimReply::Mgt(sim_mgt::Reply::Hk(hk)) => Some(hk),
_ => {
log::warn!("unexpected MGT SIM reply: {sim_reply:?}");
None
}
}
}
}
pub enum MgtCommunication {
Dummy(DummyInterface),
Sim(SimInterface),
#[allow(dead_code)]
Test(TestInterface),
}
impl MgtCommunication {
fn send(&mut self, request: sim_mgt::Request) {
match self {
MgtCommunication::Dummy(dummy) => dummy.send(request),
MgtCommunication::Sim(sim) => sim.send(request),
MgtCommunication::Test(test) => test.sent_requests.push(request),
}
}
fn try_recv_hk(&mut self) -> Option<sim_mgt::HkSet> {
match self {
MgtCommunication::Dummy(dummy) => dummy.try_recv_hk(),
MgtCommunication::Sim(sim) => sim.try_recv_hk(),
MgtCommunication::Test(test) => test.hk_replies.pop_front(),
}
}
}
/// Helper component for communication with a parent component, which is usually an assembly
/// or a subsystem.
pub struct ModeLeafHelper {
pub request_rx: Receiver<ModeRequest>,
pub report_tx: SyncSender<ModeReport>,
pub request_rx: mpsc::Receiver<ModeRequest>,
pub report_tx: mpsc::SyncSender<ModeResponse>,
}
/// Dummy magnetorquer (MGT) device handler. It has no actual actuation logic and reaches any
/// commanded mode immediately, which is sufficient to exercise the mode commanding of its
/// parent subsystem.
pub struct Mgt {
mode: Mode,
/// Magnetorquer (MGT) device handler.
///
/// The device is powered through the PCDU and only accepts torque commands in normal mode.
/// In normal mode, the device HK is polled every cycle. The replies arrive asynchronously and
/// are cached as the HK set of the handler.
pub struct MgtHandler {
tmtc_queues: TmtcQueues,
pub com: MgtCommunication,
hk_set: HkSet,
hk_helper: HkHelperSingleSet,
switch_and_mode_helper: SwitchAndModeHelper<DeviceMode>,
mode_leaf_helper: ModeLeafHelper,
event_tx: mpsc::SyncSender<mgt::Event>,
}
impl Mgt {
pub fn new(mode_leaf_helper: ModeLeafHelper) -> Self {
impl MgtHandler {
pub fn new(
tmtc_queues: TmtcQueues,
switch_helper: PowerSwitchHelper,
com: MgtCommunication,
mode_leaf_helper: ModeLeafHelper,
mode_timeout: Duration,
event_tx: mpsc::SyncSender<mgt::Event>,
) -> Self {
Self {
mode: Mode::Off,
tmtc_queues,
com,
hk_set: HkSet::default(),
hk_helper: HkHelperSingleSet::new(false, Duration::from_millis(200)),
switch_and_mode_helper: SwitchAndModeHelper::new(
DeviceMode::Off,
mode_timeout,
switch_helper,
SwitchId::Mgt,
),
mode_leaf_helper,
event_tx,
}
}
#[allow(dead_code)]
#[inline]
pub fn mode(&self) -> Mode {
self.mode
pub fn mode(&self) -> DeviceMode {
self.switch_and_mode_helper.mode()
}
pub fn periodic_operation(&mut self) {
self.handle_telecommands();
self.handle_mode_leaf_handling();
if let Some(event) = self.switch_and_mode_helper.handle_mode_transition() {
match event {
ModeTransitionEvent::Reached(tc_commander) => {
self.handle_mode_reached(tc_commander)
}
ModeTransitionEvent::Failed(tc_commander) => {
self.handle_mode_transition_failure(tc_commander)
}
// No power cycles are started without FDIR.
ModeTransitionEvent::PowerCycleDone
| ModeTransitionEvent::PowerCycleFailed { .. } => (),
}
}
if self.ready_for_commanding() {
self.com.send(sim_mgt::Request::RequestHk);
}
while let Some(hk) = self.com.try_recv_hk() {
self.hk_set = HkSet {
valid: true,
dipole: types::acs::mgt::Dipole {
x: hk.dipole.x,
y: hk.dipole.y,
z: hk.dipole.z,
},
torquing: hk.torquing,
};
}
if self.hk_helper.needs_generation() {
self.send_telemetry(None, Response::Hk(self.hk_set));
}
}
fn handle_mode_leaf_handling(&mut self) {
loop {
match self.mode_leaf_helper.request_rx.try_recv() {
Ok(request) => match request {
ModeRequest::SetMode(mode) => {
log::info!("MGT: transitioning to mode {:?}", mode);
self.mode = mode;
self.report_mode();
}
ModeRequest::ReadMode => self.report_mode(),
},
Err(e) => match e {
TryRecvError::Empty => break,
TryRecvError::Disconnected => log::warn!("packet sender disconnected"),
},
fn ready_for_commanding(&self) -> bool {
self.mode() == DeviceMode::Normal && self.switch_and_mode_helper.target().is_none()
}
fn handle_telecommands(&mut self) {
while let Ok(packet) = self.tmtc_queues.tc_rx.try_recv() {
let tc_id = CcsdsPacketIdAndPsc::new_from_ccsds_packet(&packet.sp_header);
let request = match postcard::from_bytes::<Request>(&packet.payload) {
Ok(request) => request,
Err(e) => {
log::warn!("MGT: failed to deserialize request: {}", e);
continue;
}
};
log::info!(
"MGT: received request {:?} with TC ID {:#010x}",
request,
tc_id.raw()
);
match request {
Request::Ping => self.send_telemetry(Some(tc_id), Response::Ok),
Request::Hk(hk_request) => self.handle_hk_request(tc_id, hk_request),
Request::Mode(ModeRequest::SetMode(mode)) => {
self.start_transition(mode, Some(tc_id))
}
Request::Mode(ModeRequest::ReadMode) => self
.send_telemetry(Some(tc_id), Response::Mode(ModeResponse::Mode(self.mode()))),
Request::ApplyTorque { dipole, duration } => {
self.handle_torque_command(tc_id, dipole, duration)
}
}
}
}
fn report_mode(&self) {
fn handle_mode_leaf_handling(&mut self) {
while let Ok(request) = self.mode_leaf_helper.request_rx.try_recv() {
match request {
ModeRequest::SetMode(mode) => self.start_transition(mode, None),
ModeRequest::ReadMode => self.report_mode_to_parent(),
}
}
}
fn handle_hk_request(&mut self, tc_id: CcsdsPacketIdAndPsc, hk_request: HkRequestType) {
match hk_request {
HkRequestType::OneShot => self.send_telemetry(Some(tc_id), Response::Hk(self.hk_set)),
HkRequestType::EnablePeriodic(opt_interval) => {
self.hk_helper.enabled = true;
if let Some(interval) = opt_interval {
self.hk_helper.frequency = interval;
}
}
HkRequestType::DisablePeriodic => self.hk_helper.enabled = false,
HkRequestType::ModifyInterval(interval) => self.hk_helper.frequency = interval,
_ => log::warn!("MGT: unhandled HK request"),
}
}
fn handle_torque_command(
&mut self,
tc_id: CcsdsPacketIdAndPsc,
dipole: types::acs::mgt::Dipole,
duration: Duration,
) {
if !self.ready_for_commanding() {
log::warn!("MGT: rejecting torque command, device not in normal mode");
self.send_telemetry(Some(tc_id), Response::NotInNormalMode);
return;
}
self.com.send(sim_mgt::Request::ApplyTorque {
duration,
dipole: sim_mgt::Dipole {
x: dipole.x,
y: dipole.y,
z: dipole.z,
},
});
self.send_telemetry(Some(tc_id), Response::Ok);
}
fn start_transition(
&mut self,
target_mode: DeviceMode,
tc_commander: Option<CcsdsPacketIdAndPsc>,
) {
log::info!("MGT: transitioning to mode {:?}", target_mode);
if target_mode == DeviceMode::Off {
self.hk_set = HkSet::default();
}
self.switch_and_mode_helper
.start_transition(target_mode, tc_commander);
}
fn handle_mode_reached(&mut self, tc_commander: Option<CcsdsPacketIdAndPsc>) {
log::info!("MGT: mode {:?} reached", self.mode());
self.send_event(mgt::Event::ModeChanged(self.mode()));
if tc_commander.is_some() {
self.send_telemetry(tc_commander, Response::Ok);
}
self.report_mode_to_parent();
}
fn handle_mode_transition_failure(&mut self, tc_commander: Option<CcsdsPacketIdAndPsc>) {
if tc_commander.is_some() {
self.send_telemetry(tc_commander, Response::Mode(ModeResponse::SetModeTimeout));
}
self.mode_leaf_helper
.report_tx
.send(ModeReport::Mode(self.mode))
.expect("failed to send mode report to parent");
.send(ModeResponse::SetModeTimeout)
.unwrap();
}
fn report_mode_to_parent(&self) {
self.mode_leaf_helper
.report_tx
.send(ModeResponse::Mode(self.mode()))
.unwrap();
}
fn send_event(&self, event: mgt::Event) {
if let Err(e) = self.event_tx.send(event) {
log::warn!("MGT: failed to send event {:?}: {}", event, e);
}
}
fn send_telemetry(&self, tc_id: Option<CcsdsPacketIdAndPsc>, response: Response) {
match pack_ccsds_tm_packet_for_now(ComponentId::AcsMgt, tc_id, &response) {
Ok(packet) => {
if let Err(e) = self.tmtc_queues.tm_tx.send(packet) {
log::warn!("MGT: failed to send TM packet: {}", e);
}
}
Err(e) => log::warn!("MGT: failed to pack TM packet: {}", e),
}
}
}
#[cfg(test)]
mod tests {
use std::sync::mpsc;
use std::sync::Mutex;
use arbitrary_int::u11;
use satrs::spacepackets::SpacePacketHeader;
use types::{
Apid, Message as _, TcHeader,
ccsds::{CcsdsTcPacketOwned, CcsdsTmPacketOwned},
pcdu::{SwitchRequest, SwitchState, SwitchStateBinary},
};
use crate::eps::pcdu::{SharedSwitchSet, SwitchMap, SwitchSet};
use super::*;
struct MgtTestbench {
request_tx: SyncSender<ModeRequest>,
report_rx: Receiver<ModeReport>,
mgt: Mgt,
parent_request_tx: mpsc::SyncSender<ModeRequest>,
parent_report_rx: mpsc::Receiver<ModeResponse>,
shared_switch_set: SharedSwitchSet,
switch_rx: mpsc::Receiver<SwitchRequest>,
tc_tx: mpsc::SyncSender<CcsdsTcPacketOwned>,
tm_rx: mpsc::Receiver<CcsdsTmPacketOwned>,
event_rx: mpsc::Receiver<mgt::Event>,
handler: MgtHandler,
}
impl MgtTestbench {
fn new() -> Self {
let (request_tx, request_rx) = mpsc::sync_channel(5);
let (report_tx, report_rx) = mpsc::sync_channel(5);
Self {
request_tx,
report_rx,
mgt: Mgt::new(ModeLeafHelper {
let (parent_request_tx, request_rx) = mpsc::sync_channel(5);
let (report_tx, parent_report_rx) = mpsc::sync_channel(5);
let (tc_tx, tc_rx) = mpsc::sync_channel(10);
let (tm_tx, tm_rx) = mpsc::sync_channel(10);
let (switch_tx, switch_rx) = mpsc::sync_channel(10);
let (event_tx, event_rx) = mpsc::sync_channel(10);
let mut switch_map = SwitchMap::new();
switch_map.insert(SwitchId::Mgt, SwitchState::Off);
let shared_switch_set = SharedSwitchSet::new(Mutex::new(SwitchSet::new(switch_map)));
let handler = MgtHandler::new(
TmtcQueues { tc_rx, tm_tx },
PowerSwitchHelper::new(switch_tx, shared_switch_set.clone()),
MgtCommunication::Test(TestInterface::default()),
ModeLeafHelper {
request_rx,
report_tx,
}),
},
Duration::from_millis(100),
event_tx,
);
Self {
parent_request_tx,
parent_report_rx,
shared_switch_set,
switch_rx,
tc_tx,
tm_rx,
event_rx,
handler,
}
}
fn send_tc(&self, request: Request) {
self.tc_tx
.send(CcsdsTcPacketOwned::new_with_request(
SpacePacketHeader::new_from_apid(u11::new(Apid::Acs as u16)),
TcHeader::new(ComponentId::AcsMgt, request.message_type()),
request,
))
.unwrap();
}
fn next_response(&self) -> Response {
let tm = self.tm_rx.try_recv().expect("no TM generated");
assert_eq!(tm.tm_header.sender_id, ComponentId::AcsMgt);
postcard::from_bytes(&tm.payload).expect("invalid MGT response")
}
/// Completes the power switch handshake for a commanded switch-on.
fn switch_to_normal(&mut self) {
self.send_tc(Request::Mode(ModeRequest::SetMode(DeviceMode::Normal)));
self.handler.periodic_operation();
self.shared_switch_set
.lock()
.unwrap()
.set_switch_state(SwitchId::Mgt, SwitchState::On);
self.handler.periodic_operation();
assert_eq!(self.handler.mode(), DeviceMode::Normal);
assert_eq!(self.next_response(), Response::Ok);
}
fn test_interface(&mut self) -> &mut TestInterface {
match &mut self.handler.com {
MgtCommunication::Test(test) => test,
_ => panic!("unexpected MGT interface"),
}
}
}
#[test]
fn test_initial_mode() {
let testbench = MgtTestbench::new();
assert_eq!(testbench.mgt.mode(), Mode::Off);
fn test_initial_state_no_polling() {
let mut testbench = MgtTestbench::new();
testbench.handler.periodic_operation();
assert_eq!(testbench.handler.mode(), DeviceMode::Off);
assert!(testbench.test_interface().sent_requests.is_empty());
}
#[test]
fn test_set_mode() {
fn test_switch_to_normal() {
let mut testbench = MgtTestbench::new();
testbench.send_tc(Request::Mode(ModeRequest::SetMode(DeviceMode::Normal)));
testbench.handler.periodic_operation();
let switch_request = testbench.switch_rx.try_recv().expect("no switch request");
assert_eq!(switch_request.switch_id, SwitchId::Mgt);
assert_eq!(switch_request.target_state, SwitchStateBinary::On);
assert_eq!(testbench.handler.mode(), DeviceMode::Off);
testbench
.shared_switch_set
.lock()
.unwrap()
.set_switch_state(SwitchId::Mgt, SwitchState::On);
testbench.handler.periodic_operation();
assert_eq!(testbench.handler.mode(), DeviceMode::Normal);
assert_eq!(testbench.next_response(), Response::Ok);
assert!(matches!(
testbench.event_rx.try_recv(),
Ok(mgt::Event::ModeChanged(DeviceMode::Normal))
));
assert_eq!(
testbench.parent_report_rx.try_recv(),
Ok(ModeResponse::Mode(DeviceMode::Normal))
);
}
#[test]
fn test_mode_command_from_parent() {
let mut testbench = MgtTestbench::new();
testbench
.request_tx
.send(ModeRequest::SetMode(Mode::Normal))
.parent_request_tx
.send(ModeRequest::SetMode(DeviceMode::Normal))
.unwrap();
testbench.mgt.periodic_operation();
assert_eq!(testbench.mgt.mode(), Mode::Normal);
let report = testbench.report_rx.try_recv().expect("no mode report sent");
assert_eq!(report, ModeReport::Mode(Mode::Normal));
testbench.handler.periodic_operation();
testbench
.shared_switch_set
.lock()
.unwrap()
.set_switch_state(SwitchId::Mgt, SwitchState::On);
testbench.handler.periodic_operation();
assert_eq!(
testbench.parent_report_rx.try_recv(),
Ok(ModeResponse::Mode(DeviceMode::Normal))
);
// Commanded by the parent, so no TC response is expected.
assert!(testbench.tm_rx.try_recv().is_err());
}
#[test]
fn test_read_mode() {
fn test_torque_command_rejected_when_off() {
let mut testbench = MgtTestbench::new();
testbench.request_tx.send(ModeRequest::ReadMode).unwrap();
testbench.mgt.periodic_operation();
let report = testbench.report_rx.try_recv().expect("no mode report sent");
assert_eq!(report, ModeReport::Mode(Mode::Off));
testbench.send_tc(Request::ApplyTorque {
dipole: mgt::Dipole { x: 1, y: 2, z: 3 },
duration: Duration::from_millis(100),
});
testbench.handler.periodic_operation();
assert_eq!(testbench.next_response(), Response::NotInNormalMode);
assert!(testbench.test_interface().sent_requests.is_empty());
}
#[test]
fn test_torque_command_forwarded_in_normal_mode() {
let mut testbench = MgtTestbench::new();
testbench.switch_to_normal();
testbench.test_interface().sent_requests.clear();
testbench.send_tc(Request::ApplyTorque {
dipole: mgt::Dipole { x: 1, y: 2, z: 3 },
duration: Duration::from_millis(100),
});
testbench.handler.periodic_operation();
assert_eq!(testbench.next_response(), Response::Ok);
assert_eq!(
testbench.test_interface().sent_requests.first(),
Some(&sim_mgt::Request::ApplyTorque {
duration: Duration::from_millis(100),
dipole: sim_mgt::Dipole { x: 1, y: 2, z: 3 },
})
);
}
#[test]
fn test_hk_polling_updates_hk_set() {
let mut testbench = MgtTestbench::new();
testbench.switch_to_normal();
assert!(
testbench
.test_interface()
.sent_requests
.contains(&sim_mgt::Request::RequestHk)
);
testbench
.test_interface()
.hk_replies
.push_back(sim_mgt::HkSet {
dipole: sim_mgt::Dipole { x: 1, y: 2, z: 3 },
torquing: true,
});
testbench.handler.periodic_operation();
testbench.send_tc(Request::Hk(HkRequestType::OneShot));
testbench.handler.periodic_operation();
assert_eq!(
testbench.next_response(),
Response::Hk(HkSet {
valid: true,
dipole: mgt::Dipole { x: 1, y: 2, z: 3 },
torquing: true,
})
);
}
#[test]
fn test_hk_set_invalid_after_switch_off() {
let mut testbench = MgtTestbench::new();
testbench.switch_to_normal();
testbench
.test_interface()
.hk_replies
.push_back(sim_mgt::HkSet {
dipole: sim_mgt::Dipole::default(),
torquing: false,
});
testbench.handler.periodic_operation();
testbench.send_tc(Request::Mode(ModeRequest::SetMode(DeviceMode::Off)));
testbench.send_tc(Request::Hk(HkRequestType::OneShot));
testbench.handler.periodic_operation();
assert_eq!(testbench.next_response(), Response::Hk(HkSet::default()));
}
#[test]
fn test_periodic_hk() {
let mut testbench = MgtTestbench::new();
testbench.send_tc(Request::Hk(HkRequestType::EnablePeriodic(Some(
Duration::ZERO,
))));
testbench.handler.periodic_operation();
assert!(matches!(testbench.next_response(), Response::Hk(_)));
let tm = testbench.tm_rx.try_recv();
assert!(tm.is_err(), "only one HK packet per cycle expected");
testbench.send_tc(Request::Hk(HkRequestType::DisablePeriodic));
testbench.handler.periodic_operation();
assert!(testbench.tm_rx.try_recv().is_err());
}
}
+10 -8
View File
@@ -50,7 +50,7 @@ fn build_sequence_tables() -> SequenceModeTables {
off_step_1.add_entry(SequenceTableEntry::new(
"OFF_MGT_OFF",
ComponentId::AcsMgt as satrs::ComponentId,
types::acs::mgt::Mode::Off.into(),
types::DeviceMode::Off.into(),
false,
));
off_table.add_sequence_table(off_step_1);
@@ -67,7 +67,7 @@ fn build_sequence_tables() -> SequenceModeTables {
safe_step_0.add_entry(SequenceTableEntry::new(
"SAFE_MGT_NORMAL",
ComponentId::AcsMgt as satrs::ComponentId,
types::acs::mgt::Mode::Normal.into(),
types::DeviceMode::Normal.into(),
false,
));
safe_table.add_sequence_table(safe_step_0);
@@ -126,16 +126,18 @@ fn mgm_assy_response_to_mode_response(
}
}
fn mgt_response_to_mode_response(response: types::acs::mgt::response::ModeReport) -> ModeResponse {
fn mgt_response_to_mode_response(
response: types::acs::mgt::response::ModeResponse,
) -> ModeResponse {
let sender_id = ComponentId::AcsMgt as satrs::ComponentId;
match response {
types::acs::mgt::response::ModeReport::Mode(mode) => ModeResponse {
types::acs::mgt::response::ModeResponse::Mode(mode) => ModeResponse {
request_id: 0,
sender_id,
reported_mode: mode.into(),
success: true,
},
types::acs::mgt::response::ModeReport::WrongMode(_) => ModeResponse {
types::acs::mgt::response::ModeResponse::SetModeTimeout => ModeResponse {
request_id: 0,
sender_id,
reported_mode: 0,
@@ -155,7 +157,7 @@ pub struct ModeRequestSenders {
pub struct ModeReportReceivers {
pub mode_response_ctrl: Receiver<types::acs::ctrl::response::ModeReport>,
pub mode_response_mgm_assy: Receiver<types::acs::mgm_assembly::response::ModeResponse>,
pub mode_response_mgt: Receiver<types::acs::mgt::response::ModeReport>,
pub mode_response_mgt: Receiver<types::acs::mgt::response::ModeResponse>,
}
#[derive(Debug)]
@@ -191,7 +193,7 @@ impl Subsystem {
mode_store_vec
.add_component(
ComponentId::AcsMgt as satrs::ComponentId,
types::acs::mgt::Mode::Off.into(),
types::DeviceMode::Off.into(),
)
.unwrap();
@@ -319,7 +321,7 @@ impl Subsystem {
.mode_request_senders
.mode_request_mgt
.send(types::acs::mgt::request::ModeRequest::SetMode(
types::acs::mgt::Mode::try_from(request.mode).unwrap(),
types::DeviceMode::try_from(request.mode).unwrap(),
))
.unwrap(),
_ => {