Subaru: Stop and Go support (beta) (#1375)

* Subaru: Stop and Go auto-resume support

* bump

* bump

* fix

* bump

* fix init

* wat

* use just standstill for now

* Revert "use just standstill for now"

This reverts commit f72cce6892.

* bump

* bump

* fix it

* only send at 10

* bump

* fix type

* forget about planner resume, it sucks

* try to send off_accel

* still need it

* always send

* disable safety checks for now

* same

* more

* all the time for both

* don't need i guess

* bump

* try 15 frames per try

* all should have it

* try 3 for all

* use throttle for all preglobal?

* bump

* bump

* separate thresholds between preglobal and global

* longer wait before sending

* shorter time but immediately resend

* quick

* new timeout

* about to cry

* same thing but another try

* no need

* round 3

* try 1.4

* lower!

* 1.2

* last try

* beta asf

* bump

common/params_keys.h

@@ -205,6 +205,8 @@ inline static std::unordered_map<std::string, ParamKeyAttributes> keys = {
 
     // sunnypilot car specific params
     {"HyundaiLongitudinalTuning", {PERSISTENT | BACKUP, INT, "0"}},
+    {"SubaruStopAndGo", {PERSISTENT | BACKUP, BOOL, "0"}},
+    {"SubaruStopAndGoManualParkingBrake", {PERSISTENT | BACKUP, BOOL, "0"}},
 
     {"DynamicExperimentalControl", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"BlindSpot", {PERSISTENT | BACKUP, BOOL, "0"}},

selfdrive/ui/sunnypilot/qt/offroad/settings/vehicle/subaru_settings.cc

@@ -8,7 +8,52 @@
 #include "selfdrive/ui/sunnypilot/qt/offroad/settings/vehicle/subaru_settings.h"
 
 SubaruSettings::SubaruSettings(QWidget *parent) : BrandSettingsInterface(parent) {
+  stopAndGoToggle = new ParamControl("SubaruStopAndGo", tr("Stop and Go (Beta)"), "", "");
+  stopAndGoToggle->setConfirmation(true, false);
+  list->addItem(stopAndGoToggle);
+
+  stopAndGoManualParkingBrakeToggle = new ParamControl(
+    "SubaruStopAndGoManualParkingBrake",
+    tr("Stop and Go for Manual Parking Brake (Beta)"),
+    "",
+    ""
+  );
+  stopAndGoManualParkingBrakeToggle->setConfirmation(true, false);
+  list->addItem(stopAndGoManualParkingBrakeToggle);
 }
 
 void SubaruSettings::updateSettings() {
+  auto cp_bytes = params.get("CarParamsPersistent");
+  if (!cp_bytes.empty()) {
+    AlignedBuffer aligned_buf;
+    capnp::FlatArrayMessageReader cmsg(aligned_buf.align(cp_bytes.data(), cp_bytes.size()));
+    cereal::CarParams::Reader CP = cmsg.getRoot<cereal::CarParams>();
+
+    is_subaru = CP.getBrand() == "subaru";
+
+    if (is_subaru) {
+      if (!(CP.getFlags() & (SUBARU_FLAG_GLOBAL_GEN2 | SUBARU_FLAG_HYBRID))) {
+        has_stop_and_go = true;
+      }
+    }
+  } else {
+    is_subaru = false;
+    has_stop_and_go = false;
+  }
+
+  bool stop_and_go_disabled = !offroad || !has_stop_and_go;
+  QString stop_and_go_desc = stopAndGoDescriptionBuilder(stopAndGoDesc);
+  QString stop_and_go_manual_parking_brake_desc = stopAndGoDescriptionBuilder(stopAndGoManualParkingBrakeDesc);
+  if (stop_and_go_disabled) {
+    stop_and_go_desc = stopAndGoDescriptionBuilder(stopAndGoDesc, stopAndGoDisabledMsg());
+    stop_and_go_manual_parking_brake_desc = stopAndGoDescriptionBuilder(stopAndGoManualParkingBrakeDesc, stopAndGoDisabledMsg());
+  }
+
+  stopAndGoToggle->setEnabled(has_stop_and_go);
+  stopAndGoToggle->setDescription(stop_and_go_desc);
+  stopAndGoToggle->showDescription();
+
+  stopAndGoManualParkingBrakeToggle->setEnabled(has_stop_and_go);
+  stopAndGoManualParkingBrakeToggle->setDescription(stop_and_go_manual_parking_brake_desc);
+  stopAndGoManualParkingBrakeToggle->showDescription();
 }

selfdrive/ui/sunnypilot/qt/offroad/settings/vehicle/subaru_settings.h

@@ -14,6 +14,9 @@
 #include "selfdrive/ui/sunnypilot/qt/offroad/settings/settings.h"
 #include "selfdrive/ui/sunnypilot/qt/widgets/controls.h"
 
+const int SUBARU_FLAG_GLOBAL_GEN2 = 4;
+const int SUBARU_FLAG_HYBRID = 32;
+
 class SubaruSettings : public BrandSettingsInterface {
   Q_OBJECT
 
@@ -23,4 +26,32 @@ public:
 
 private:
   bool offroad = false;
+  bool is_subaru;
+  bool has_stop_and_go;
+
+  ParamControl* stopAndGoToggle;
+  ParamControl* stopAndGoManualParkingBrakeToggle;
+
+  QString stopAndGoDesc = tr("Experimental feature to enable auto-resume during stop-and-go for certain supported Subaru platforms.");
+  QString stopAndGoManualParkingBrakeDesc = tr("Experimental feature to enable stop and go for Subaru Global models with manual handbrake. Models with electric parking brake should keep this disabled. Thanks to martinl for this implementation!");
+
+  QString stopAndGoDisabledMsg() const {
+    if (is_subaru && !has_stop_and_go) {
+      return tr("This feature is currently not available on this platform.");
+    }
+
+    if (!is_subaru) {
+      return tr("Start the car to check car compatibility.");
+    }
+
+    if (!offroad) {
+      return tr("Enable \"Always Offroad\" in Device panel, or turn vehicle off to toggle.");
+    }
+
+    return QString();
+  }
+
+  static QString stopAndGoDescriptionBuilder(const QString &base_description, const QString &custom_description = "") {
+    return "<b>" + custom_description + "</b><br><br>" + base_description;
+  }
 };

sunnypilot/selfdrive/car/interfaces.py

@@ -84,4 +84,10 @@ def initialize_params(params) -> list[dict[str, Any]]:
     "HyundaiLongitudinalTuning"
   ])
 
+  # subaru
+  keys.extend([
+    "SubaruStopAndGo",
+    "SubaruStopAndGoManualParkingBrake",
+  ])
+
   return [{k: params.get(k, return_default=True)} for k in keys]