Retain tethering status between reboots

selfdrive/ui/qt/network/networking.cc

@@ -130,6 +130,10 @@ AdvancedNetworking::AdvancedNetworking(QWidget* parent, WifiManager* wifi): QWid
   tetheringToggle = new ToggleControl(tr("Enable Tethering"), "", "", wifi->isTetheringEnabled());
   list->addItem(tetheringToggle);
   QObject::connect(tetheringToggle, &ToggleControl::toggleFlipped, this, &AdvancedNetworking::toggleTethering);
+  if (params.getBool("TetheringEnabled")) {
+    tetheringToggle->setVisualOn();
+    uiState()->scene.tethering_enabled = true;
+  }
 
   // Change tethering password
   ButtonControl *editPasswordButton = new ButtonControl(tr("Tethering Password"), tr("EDIT"));
@@ -232,6 +236,8 @@ void AdvancedNetworking::refresh() {
 void AdvancedNetworking::toggleTethering(bool enabled) {
   wifi->setTetheringEnabled(enabled);
   tetheringToggle->setEnabled(false);
+  params.putBool("TetheringEnabled", enabled);
+  uiState()->scene.tethering_enabled = enabled;
 }
 
 // WifiUI functions

selfdrive/ui/qt/widgets/controls.h

@@ -127,6 +127,10 @@ public:
     QObject::connect(&toggle, &Toggle::stateChanged, this, &ToggleControl::toggleFlipped);
   }
 
+  void setVisualOn() {
+    toggle.togglePosition();
+  }
+
   void setEnabled(bool enabled) {
     toggle.setEnabled(enabled);
     toggle.update();

selfdrive/ui/ui.cc

@@ -342,6 +342,7 @@ void UIState::updateStatus() {
     started_prev = scene.started;
     scene.world_objects_visible = false;
     emit offroadTransition(!scene.started);
+    wifi->setTetheringEnabled(scene.started && scene.tethering_enabled);
   }
 }
 
@@ -365,6 +366,8 @@ UIState::UIState(QObject *parent) : QObject(parent) {
   QObject::connect(timer, &QTimer::timeout, this, &UIState::update);
   timer->start(1000 / UI_FREQ);
 
+  wifi = new WifiManager(this);
+
   scene.screen_brightness = params.getInt("ScreenBrightness");
 
   setDefaultParams();

selfdrive/ui/ui.h

@@ -15,6 +15,7 @@
 #include "common/mat.h"
 #include "common/params.h"
 #include "common/timing.h"
+#include "selfdrive/ui/qt/network/wifi_manager.h"
 #include "system/hardware/hw.h"
 
 const int UI_BORDER_SIZE = 30;
@@ -191,6 +192,7 @@ typedef struct UIScene {
   bool road_name_ui;
   bool show_driver_camera;
   bool show_fps;
+  bool tethering_enabled;
   bool turn_signal_left;
   bool turn_signal_right;
   bool unlimited_road_ui_length;
@@ -261,6 +263,8 @@ private:
   QTimer *timer;
   bool started_prev = false;
   PrimeType prime_type = PrimeType::UNKNOWN;
+
+  WifiManager *wifi = nullptr;
 };
 
 UIState *uiState();