am: IsVrModeEnabled & SetVrModeEnabled fixes

Return the proper state of vr mode for IsVrModeEnabled
We should not return an error for SetVrModeEnabled. When VR Mode is turned on, it signals to lbl to turn vr mode on, not return an error code

src/core/hle/service/am/am.cpp

@@ -52,11 +52,6 @@ enum class LaunchParameterKind : u32 {
     AccountPreselectedUser = 2,
 };
 
-enum class VrMode : u8 {
-    Disabled = 0,
-    Enabled = 1,
-};
-
 constexpr u32 LAUNCH_PARAMETER_ACCOUNT_PRESELECTED_USER_MAGIC = 0xC79497CA;
 
 struct LaunchParameterAccountPreselectedUser {
@@ -685,27 +680,21 @@ void ICommonStateGetter::GetCurrentFocusState(Kernel::HLERequestContext& ctx) {
 }
 
 void ICommonStateGetter::IsVrModeEnabled(Kernel::HLERequestContext& ctx) {
-    LOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_DEBUG(Service_AM, "called");
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
-    rb.PushEnum(VrMode::Disabled);
+    rb.Push(vr_mode_state);
 }
 
 void ICommonStateGetter::SetVrModeEnabled(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    const auto is_vr_mode_enabled = rp.Pop<bool>();
+    vr_mode_state = rp.Pop<bool>();
 
-    LOG_WARNING(Service_AM, "(STUBBED) called. is_vr_mode_enabled={}", is_vr_mode_enabled);
+    LOG_WARNING(Service_AM, "VR Mode is {}", vr_mode_state ? "on" : "off");
 
     IPC::ResponseBuilder rb{ctx, 2};
-    if (!is_vr_mode_enabled) {
-        rb.Push(RESULT_SUCCESS);
-    } else {
-        // TODO: Find better error code for this
-        UNIMPLEMENTED_MSG("is_vr_mode_enabled={}", is_vr_mode_enabled);
-        rb.Push(RESULT_UNKNOWN);
-    }
+    rb.Push(RESULT_SUCCESS);
 }
 
 void ICommonStateGetter::SetLcdBacklighOffEnabled(Kernel::HLERequestContext& ctx) {

src/core/hle/service/am/am.h

@@ -191,6 +191,7 @@ private:
 
     Core::System& system;
     std::shared_ptr<AppletMessageQueue> msg_queue;
+    bool vr_mode_state{};
 };
 
 class IStorageImpl {