Correct APT::0x00550040 and APT::0x00560000 function

src/core/hle/service/apt/apt.cpp

@@ -37,6 +37,8 @@ static u32 cpu_percent; ///< CPU time available to the running application
 // APT::CheckNew3DSApp will check this unknown_ns_state_field to determine processing mode
 static u8 unknown_ns_state_field;
 
+static ScreencapPostPermission screen_capture_post_permission;
+
 /// Parameter data to be returned in the next call to Glance/ReceiveParameter
 static MessageParameter next_parameter;
 
@@ -382,23 +384,23 @@ void StartLibraryApplet(Service::Interface* self) {
     cmd_buff[1] = applet->Start(parameter).raw;
 }
 
-void SetNSStateField(Service::Interface* self) {
+void SetScreenCapPostPermission(Service::Interface* self) {
     u32* cmd_buff = Kernel::GetCommandBuffer();
 
-    unknown_ns_state_field = cmd_buff[1];
+    screen_capture_post_permission = static_cast<ScreencapPostPermission>(cmd_buff[1] & 0xF);
 
     cmd_buff[0] = IPC::MakeHeader(0x55, 1, 0);
     cmd_buff[1] = RESULT_SUCCESS.raw;
-    LOG_WARNING(Service_APT, "(STUBBED) unknown_ns_state_field=%u", unknown_ns_state_field);
+    LOG_WARNING(Service_APT, "(STUBBED) screen_capture_post_permission=%u", screen_capture_post_permission);
 }
 
-void GetNSStateField(Service::Interface* self) {
+void GetScreenCapPostPermission(Service::Interface* self) {
     u32* cmd_buff = Kernel::GetCommandBuffer();
 
     cmd_buff[0] = IPC::MakeHeader(0x56, 2, 0);
     cmd_buff[1] = RESULT_SUCCESS.raw;
-    cmd_buff[8] = unknown_ns_state_field;
+    cmd_buff[2] = static_cast<u32>(screen_capture_post_permission);
-    LOG_WARNING(Service_APT, "(STUBBED) unknown_ns_state_field=%u", unknown_ns_state_field);
+    LOG_WARNING(Service_APT, "(STUBBED) screen_capture_post_permission=%u", screen_capture_post_permission);
 }
 
 void GetAppletInfo(Service::Interface* self) {
@@ -493,6 +495,7 @@ void Init() {
 
     cpu_percent = 0;
     unknown_ns_state_field = 0;
+    screen_capture_post_permission = ScreencapPostPermission::CleanThePermission; // TODO(JamePeng): verify the initial value
 
     // TODO(bunnei): Check if these are created in Initialize or on APT process startup.
     notification_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "APT_U:Notification");

src/core/hle/service/apt/apt.h

@@ -94,6 +94,13 @@ enum class StartupArgumentType : u32 {
     OtherMedia = 2,
 };
 
+enum class ScreencapPostPermission : u32 {
+    CleanThePermission                 = 0, //TODO(JamePeng): verify what "zero" means
+    NoExplicitSetting                  = 1,
+    EnableScreenshotPostingToMiiverse  = 2,
+    DisableScreenshotPostingToMiiverse = 3
+};
+
 /// Send a parameter to the currently-running application, which will read it via ReceiveParameter
 void SendParameter(const MessageParameter& parameter);
 
@@ -383,25 +390,24 @@ void StartLibraryApplet(Service::Interface* self);
 void GetStartupArgument(Service::Interface* self);
 
 /**
- * APT::SetNSStateField service function
+ * APT::SetScreenCapPostPermission service function
  *  Inputs:
- *      1 : u8 NS state field
+ *      0 : Header Code[0x00550040]
+ *      1 : u8 The screenshot posting permission
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
- *  Note:
- *      This writes the input u8 to a NS state field.
  */
-void SetNSStateField(Service::Interface* self);
+void SetScreenCapPostPermission(Service::Interface* self);
 
 /**
- * APT::GetNSStateField service function
+ * APT::GetScreenCapPostPermission service function
+ *  Inputs:
+ *      0 : Header Code[0x00560000]
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
- *      8 : u8 NS state field
+ *      2 : u8 The screenshot posting permission
- *  Note:
- *      This returns a u8 NS state field(which can be set by cmd 0x00550040), at cmdreply+8.
  */
-void GetNSStateField(Service::Interface* self);
+void GetScreenCapPostPermission(Service::Interface* self);
 
 /**
  * APT::CheckNew3DSApp service function

src/core/hle/service/apt/apt_a.cpp

@@ -33,8 +33,8 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x004F0080, SetAppCpuTimeLimit,           "SetAppCpuTimeLimit"},
     {0x00500040, GetAppCpuTimeLimit,           "GetAppCpuTimeLimit"},
     {0x00510080, GetStartupArgument,           "GetStartupArgument"},
-    {0x00550040, SetNSStateField,              "SetNSStateField?"},
+    {0x00550040, SetScreenCapPostPermission,   "SetScreenCapPostPermission"},
-    {0x00560000, GetNSStateField,              "GetNSStateField?"},
+    {0x00560000, GetScreenCapPostPermission,   "GetScreenCapPostPermission"},
     {0x01010000, CheckNew3DSApp,               "CheckNew3DSApp"},
     {0x01020000, CheckNew3DS,                  "CheckNew3DS"}
 };

src/core/hle/service/apt/apt_s.cpp

@@ -92,8 +92,8 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00510080, GetStartupArgument,    "GetStartupArgument"},
     {0x00520104, nullptr,               "Wrap1"},
     {0x00530104, nullptr,               "Unwrap1"},
-    {0x00550040, SetNSStateField,       "SetNSStateField?" },
+    {0x00550040, SetScreenCapPostPermission, "SetScreenCapPostPermission"},
-    {0x00560000, GetNSStateField,       "GetNSStateField?" },
+    {0x00560000, GetScreenCapPostPermission, "GetScreenCapPostPermission"},
     {0x00580002, nullptr,               "GetProgramID"},
     {0x01010000, CheckNew3DSApp,        "CheckNew3DSApp"},
     {0x01020000, CheckNew3DS,           "CheckNew3DS"}

src/core/hle/service/apt/apt_u.cpp

@@ -92,8 +92,8 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00510080, GetStartupArgument,              "GetStartupArgument"},
     {0x00520104, nullptr,                         "Wrap1"},
     {0x00530104, nullptr,                         "Unwrap1"},
-    {0x00550040, SetNSStateField,                 "SetNSStateField?"},
+    {0x00550040, SetScreenCapPostPermission,      "SetScreenCapPostPermission"},
-    {0x00560000, GetNSStateField,                 "GetNSStateField?"},
+    {0x00560000, GetScreenCapPostPermission,      "GetScreenCapPostPermission"},
     {0x00580002, nullptr,                         "GetProgramID"},
     {0x01010000, CheckNew3DSApp,                  "CheckNew3DSApp"},
     {0x01020000, CheckNew3DS,                     "CheckNew3DS"}