diff --git a/Source/Core/InputCommon/ControllerEmu/Control/Control.h b/Source/Core/InputCommon/ControllerEmu/Control/Control.h
index bfdd54dd60..4a1bb585de 100644
--- a/Source/Core/InputCommon/ControllerEmu/Control/Control.h
+++ b/Source/Core/InputCommon/ControllerEmu/Control/Control.h
@@ -23,7 +23,7 @@ public:
   virtual ~Control();
 
   template <typename T = ControlState>
-  T GetState()
+  T GetState() const
   {
     return control_ref->GetState<T>();
   }
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.cpp
index 881be39471..36733c9f7e 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.cpp
@@ -32,7 +32,7 @@ AnalogStick::AnalogStick(const char* const name_, const char* const ui_name_,
   AddInput(Translate, _trans("Modifier"));
 }
 
-AnalogStick::ReshapeData AnalogStick::GetReshapableState(bool adjusted)
+AnalogStick::ReshapeData AnalogStick::GetReshapableState(bool adjusted) const
 {
   const ControlState y = controls[0]->GetState() - controls[1]->GetState();
   const ControlState x = controls[3]->GetState() - controls[2]->GetState();
@@ -46,7 +46,7 @@ AnalogStick::ReshapeData AnalogStick::GetReshapableState(bool adjusted)
   return Reshape(x, y, modifier);
 }
 
-AnalogStick::StateData AnalogStick::GetState()
+AnalogStick::StateData AnalogStick::GetState() const
 {
   return GetReshapableState(true);
 }
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.h
index ac0266f7c1..a5ea05a211 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/AnalogStick.h
@@ -18,10 +18,10 @@ public:
   AnalogStick(const char* name, std::unique_ptr<StickGate>&& stick_gate);
   AnalogStick(const char* name, const char* ui_name, std::unique_ptr<StickGate>&& stick_gate);
 
-  ReshapeData GetReshapableState(bool adjusted) final override;
+  ReshapeData GetReshapableState(bool adjusted) const final override;
   ControlState GetGateRadiusAtAngle(double ang) const override;
 
-  StateData GetState();
+  StateData GetState() const;
 
 private:
   std::unique_ptr<StickGate> m_stick_gate;
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Buttons.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Buttons.h
index b10677a615..707c93fa81 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Buttons.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Buttons.h
@@ -20,7 +20,7 @@ public:
   Buttons(const std::string& ini_name, const std::string& group_name);
 
   template <typename C>
-  void GetState(C* const buttons, const C* bitmasks)
+  void GetState(C* const buttons, const C* bitmasks) const
   {
     for (auto& control : controls)
       *buttons |= *(bitmasks++) * control->GetState<bool>();
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.cpp
index fa379624db..4dbb5a11ed 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.cpp
@@ -64,7 +64,7 @@ Cursor::Cursor(std::string name_, std::string ui_name_)
   AddSetting(&m_autohide_setting, {_trans("Auto-Hide")}, false);
 }
 
-Cursor::ReshapeData Cursor::GetReshapableState(bool adjusted)
+Cursor::ReshapeData Cursor::GetReshapableState(bool adjusted) const
 {
   const ControlState y = controls[0]->GetState() - controls[1]->GetState();
   const ControlState x = controls[3]->GetState() - controls[2]->GetState();
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.h
index 562313bb45..a6b38fb4bb 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Cursor.h
@@ -25,9 +25,10 @@ public:
 
   Cursor(std::string name, std::string ui_name);
 
-  ReshapeData GetReshapableState(bool adjusted) final override;
+  ReshapeData GetReshapableState(bool adjusted) const final override;
   ControlState GetGateRadiusAtAngle(double ang) const override;
 
+  // Modifies the state
   StateData GetState(bool adjusted);
 
   // Yaw movement in radians.
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp
index af9246c54d..457b36205b 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp
@@ -65,7 +65,7 @@ Force::Force(const std::string& name_) : ReshapableInput(name_, name_, GroupType
              90, 1, 180);
 }
 
-Force::ReshapeData Force::GetReshapableState(bool adjusted)
+Force::ReshapeData Force::GetReshapableState(bool adjusted) const
 {
   const ControlState y = controls[0]->GetState() - controls[1]->GetState();
   const ControlState x = controls[3]->GetState() - controls[2]->GetState();
@@ -77,7 +77,7 @@ Force::ReshapeData Force::GetReshapableState(bool adjusted)
   return Reshape(x, y);
 }
 
-Force::StateData Force::GetState(bool adjusted)
+Force::StateData Force::GetState(bool adjusted) const
 {
   const auto state = GetReshapableState(adjusted);
   ControlState z = controls[4]->GetState() - controls[5]->GetState();
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.h
index ae9cabe340..983f668d78 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.h
@@ -19,12 +19,12 @@ public:
 
   explicit Force(const std::string& name);
 
-  ReshapeData GetReshapableState(bool adjusted) final override;
+  ReshapeData GetReshapableState(bool adjusted) const final override;
   ControlState GetGateRadiusAtAngle(double ang) const final override;
 
   ControlState GetDefaultInputRadiusAtAngle(double angle) const final override;
 
-  StateData GetState(bool adjusted = true);
+  StateData GetState(bool adjusted = true) const;
 
   // Velocities returned in m/s.
   ControlState GetSpeed() const;
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.cpp
index bd70c64b53..d8aeea4eee 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.cpp
@@ -29,7 +29,7 @@ Slider::Slider(const std::string& name_) : Slider(name_, name_)
 {
 }
 
-Slider::StateData Slider::GetState()
+Slider::StateData Slider::GetState() const
 {
   const ControlState deadzone = m_deadzone_setting.GetValue() / 100;
   const ControlState state = controls[1]->GetState() - controls[0]->GetState();
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.h
index de969f59b5..930241d7fe 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.h
@@ -23,7 +23,7 @@ public:
   Slider(const std::string& name_, const std::string& ui_name_);
   explicit Slider(const std::string& name_);
 
-  StateData GetState();
+  StateData GetState() const;
 
 private:
   SettingValue<double> m_deadzone_setting;
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.cpp
index 69739bc330..053d0bf429 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.cpp
@@ -42,7 +42,7 @@ Tilt::Tilt(const std::string& name_) : ReshapableInput(name_, name_, GroupType::
              7, 1, 50);
 }
 
-Tilt::ReshapeData Tilt::GetReshapableState(bool adjusted)
+Tilt::ReshapeData Tilt::GetReshapableState(bool adjusted) const
 {
   const ControlState y = controls[0]->GetState() - controls[1]->GetState();
   const ControlState x = controls[3]->GetState() - controls[2]->GetState();
@@ -56,7 +56,7 @@ Tilt::ReshapeData Tilt::GetReshapableState(bool adjusted)
   return Reshape(x, y, modifier);
 }
 
-Tilt::StateData Tilt::GetState()
+Tilt::StateData Tilt::GetState() const
 {
   return GetReshapableState(true);
 }
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.h
index dc4c2364de..cb50c5eb73 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Tilt.h
@@ -19,14 +19,14 @@ public:
 
   explicit Tilt(const std::string& name);
 
-  ReshapeData GetReshapableState(bool adjusted) final override;
+  ReshapeData GetReshapableState(bool adjusted) const final override;
   ControlState GetGateRadiusAtAngle(double angle) const final override;
 
   // Tilt is using the gate radius to adjust the tilt angle so we must provide an unadjusted value
   // for the default input radius.
   ControlState GetDefaultInputRadiusAtAngle(double angle) const final override;
 
-  StateData GetState();
+  StateData GetState() const;
 
   // Return peak rotational velocity (for a complete turn) in radians/sec
   ControlState GetMaxRotationalVelocity() const;
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.cpp
index bdfec69808..7aaac42b72 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.cpp
@@ -21,7 +21,7 @@ Triggers::Triggers(const std::string& name_) : ControlGroup(name_, GroupType::Tr
   AddDeadzoneSetting(&m_deadzone_setting, 50);
 }
 
-Triggers::StateData Triggers::GetState()
+Triggers::StateData Triggers::GetState() const
 {
   const size_t trigger_count = controls.size();
   const ControlState deadzone = m_deadzone_setting.GetValue() / 100;
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.h b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.h
index 8b72d6738b..5d75ff09bc 100644
--- a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.h
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.h
@@ -26,7 +26,7 @@ public:
 
   explicit Triggers(const std::string& name);
 
-  StateData GetState();
+  StateData GetState() const;
 
 private:
   SettingValue<double> m_deadzone_setting;
diff --git a/Source/Core/InputCommon/ControllerEmu/StickGate.cpp b/Source/Core/InputCommon/ControllerEmu/StickGate.cpp
index 797d19aadf..d1b230c373 100644
--- a/Source/Core/InputCommon/ControllerEmu/StickGate.cpp
+++ b/Source/Core/InputCommon/ControllerEmu/StickGate.cpp
@@ -280,7 +280,7 @@ void ReshapableInput::SaveConfig(IniFile::Section* section, const std::string& d
 }
 
 ReshapableInput::ReshapeData ReshapableInput::Reshape(ControlState x, ControlState y,
-                                                      ControlState modifier)
+                                                      ControlState modifier) const
 {
   x -= m_center.x;
   y -= m_center.y;
diff --git a/Source/Core/InputCommon/ControllerEmu/StickGate.h b/Source/Core/InputCommon/ControllerEmu/StickGate.h
index 8a0a0ab100..015c77e9a4 100644
--- a/Source/Core/InputCommon/ControllerEmu/StickGate.h
+++ b/Source/Core/InputCommon/ControllerEmu/StickGate.h
@@ -91,7 +91,7 @@ public:
   virtual ControlState GetVirtualNotchSize() const { return 0.0; };
 
   virtual ControlState GetGateRadiusAtAngle(double angle) const = 0;
-  virtual ReshapeData GetReshapableState(bool adjusted) = 0;
+  virtual ReshapeData GetReshapableState(bool adjusted) const = 0;
   virtual ControlState GetDefaultInputRadiusAtAngle(double ang) const;
 
   void SetCalibrationToDefault();
@@ -108,7 +108,7 @@ public:
   void SetCenter(ReshapeData center);
 
 protected:
-  ReshapeData Reshape(ControlState x, ControlState y, ControlState modifier = 0.0);
+  ReshapeData Reshape(ControlState x, ControlState y, ControlState modifier = 0.0) const;
 
 private:
   void LoadConfig(IniFile::Section*, const std::string&, const std::string&) override;
diff --git a/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.cpp b/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.cpp
index 75f69b8823..a749f83a01 100644
--- a/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.cpp
@@ -766,7 +766,7 @@ bool InputDevice::PressEvent(int button, int action)
       if (binding.second->m_bind_type == BIND_BUTTON)
         m_buttons[binding.second->m_button_type] = action == BUTTON_PRESSED ? true : false;
       else
-        m_axises[binding.second->m_button_type] = action == BUTTON_PRESSED ? 1.0f : 0.0f;
+        m_axes[binding.second->m_button_type] = action == BUTTON_PRESSED ? 1.0f : 0.0f;
       handled = true;
     }
   }
@@ -780,34 +780,54 @@ void InputDevice::AxisEvent(int axis, float value)
     if (binding.second->m_bind == axis)
     {
       if (binding.second->m_bind_type == BIND_AXIS)
-        m_axises[binding.second->m_button_type] = value;
+        m_axes[binding.second->m_button_type] = value;
       else
         m_buttons[binding.second->m_button_type] = value > 0.5f ? true : false;
     }
   }
 }
 
-bool InputDevice::ButtonValue(int pad_id, ButtonType button)
+bool InputDevice::ButtonValue(int pad_id, ButtonType button) const
 {
-  const auto& binding = m_input_binds.find(std::make_pair(pad_id, button));
+  const auto binding = m_input_binds.find(std::make_pair(pad_id, button));
   if (binding == m_input_binds.end())
     return false;
 
   if (binding->second->m_bind_type == BIND_BUTTON)
-    return m_buttons[binding->second->m_button_type];
+  {
+    const auto button = m_buttons.find(binding->second->m_button_type);
+    if (button == m_buttons.end())
+      return false;
+    return button->second;
+  }
   else
-    return (m_axises[binding->second->m_button_type] * binding->second->m_neg) > 0.5f;
+  {
+    const auto axis = m_axes.find(binding->second->m_button_type);
+    if (axis == m_axes.end())
+      return false;
+    return (axis->second * binding->second->m_neg) > 0.5f;
+  }
 }
 
-float InputDevice::AxisValue(int pad_id, ButtonType axis)
+float InputDevice::AxisValue(int pad_id, ButtonType axis) const
 {
-  const auto& binding = m_input_binds.find(std::make_pair(pad_id, axis));
+  const auto binding = m_input_binds.find(std::make_pair(pad_id, axis));
   if (binding == m_input_binds.end())
     return 0.0f;
 
   if (binding->second->m_bind_type == BIND_AXIS)
-    return m_axises[binding->second->m_button_type] * binding->second->m_neg;
+  {
+    const auto axis = m_axes.find(binding->second->m_button_type);
+    if (axis == m_axes.end())
+      return 0.0f;
+    return axis->second * binding->second->m_neg;
+  }
   else
-    return m_buttons[binding->second->m_button_type] == BUTTON_PRESSED ? 1.0f : 0.0f;
+  {
+    const auto button = m_buttons.find(binding->second->m_button_type);
+    if (button == m_buttons.end())
+      return 0.0f;
+    return button->second == BUTTON_PRESSED ? 1.0f : 0.0f;
+  }
 }
 }  // namespace ButtonManager
diff --git a/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.h b/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.h
index 2139c2e2ca..13b52bb989 100644
--- a/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.h
+++ b/Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.h
@@ -210,7 +210,7 @@ private:
 public:
   Button() : m_state(BUTTON_RELEASED) {}
   void SetState(ButtonState state) { m_state = state; }
-  bool Pressed() { return m_state == BUTTON_PRESSED; }
+  bool Pressed() const { return m_state == BUTTON_PRESSED; }
   ~Button() {}
 };
 class Axis
@@ -221,7 +221,7 @@ private:
 public:
   Axis() : m_value(0.0f) {}
   void SetValue(float value) { m_value = value; }
-  float AxisValue() { return m_value; }
+  float AxisValue() const { return m_value; }
   ~Axis() {}
 };
 
@@ -244,7 +244,7 @@ class InputDevice
 private:
   const std::string m_dev;
   std::map<ButtonType, bool> m_buttons;
-  std::map<ButtonType, float> m_axises;
+  std::map<ButtonType, float> m_axes;
 
   // Key is pad_id and ButtonType
   std::map<std::pair<int, ButtonType>, sBind*> m_input_binds;
@@ -263,8 +263,8 @@ public:
   }
   bool PressEvent(int button, int action);
   void AxisEvent(int axis, float value);
-  bool ButtonValue(int pad_id, ButtonType button);
-  float AxisValue(int pad_id, ButtonType axis);
+  bool ButtonValue(int pad_id, ButtonType button) const;
+  float AxisValue(int pad_id, ButtonType axis) const;
 };
 
 void Init(const std::string&);
diff --git a/Source/Core/InputCommon/InputConfig.cpp b/Source/Core/InputCommon/InputConfig.cpp
index 07a9b62daf..140e66e261 100644
--- a/Source/Core/InputCommon/InputConfig.cpp
+++ b/Source/Core/InputCommon/InputConfig.cpp
@@ -171,7 +171,7 @@ void InputConfig::SaveConfig()
   inifile.Save(ini_filename);
 }
 
-ControllerEmu::EmulatedController* InputConfig::GetController(int index)
+ControllerEmu::EmulatedController* InputConfig::GetController(int index) const
 {
   return m_controllers.at(index).get();
 }
diff --git a/Source/Core/InputCommon/InputConfig.h b/Source/Core/InputCommon/InputConfig.h
index 0eeeedaed8..a873e82503 100644
--- a/Source/Core/InputCommon/InputConfig.h
+++ b/Source/Core/InputCommon/InputConfig.h
@@ -34,7 +34,7 @@ public:
     m_controllers.emplace_back(std::make_unique<T>(std::forward<Args>(args)...));
   }
 
-  ControllerEmu::EmulatedController* GetController(int index);
+  ControllerEmu::EmulatedController* GetController(int index) const;
   void ClearControllers();
   bool ControllersNeedToBeCreated() const;
   bool IsControllerControlledByGamepadDevice(int index) const;