Services/FS: Implemented DeleteExtSaveData, CreateSystemSaveData and DeleteSystemSaveData

Also fixed a bug with CreateExtSaveData that made it unable to create ExtSaveData archives in the SDMC directory.

1 files changed, 72 insertions, 8 deletions

diff --git a/src/core/hle/service/fs/fs_user.cpp b/src/core/hle/service/fs/fs_user.cpp
index eb312496..02458a00 100644
--- a/src/core/hle/service/fs/fs_user.cpp
+++ b/src/core/hle/service/fs/fs_user.cpp
@@ -490,25 +490,45 @@ static void FormatThisUserSaveData(Service::Interface* self) {
 /**
  * FS_User::CreateExtSaveData service function
  *  Inputs:
- *      0: 0x08510242
- *      1: High word of the saveid to create
- *      2: Low word of the saveid to create
+ *      0 : 0x08510242
+ *      1 : Media type (NAND / SDMC)
+ *      2 : Low word of the saveid to create
+ *      3 : High word of the saveid to create
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
  */
 static void CreateExtSaveData(Service::Interface* self) {
     // TODO(Subv): Figure out the other parameters.
     u32* cmd_buff = Kernel::GetCommandBuffer();
-    u32 save_high = cmd_buff[1];
+    MediaType media_type = static_cast<MediaType>(cmd_buff[1] & 0xFF);
     u32 save_low = cmd_buff[2];
-    // TODO(Subv): For now it is assumed that only SharedExtSaveData can be created like this
-    cmd_buff[1] = CreateExtSaveData(save_high, save_low).raw;
+    u32 save_high = cmd_buff[3];
+    cmd_buff[1] = CreateExtSaveData(media_type, save_high, save_low).raw;
+}
+
+/**
+ * FS_User::DeleteExtSaveData service function
+ *  Inputs:
+ *      0 : 0x08520100
+ *      1 : Media type (NAND / SDMC)
+ *      2 : Low word of the saveid to create
+ *      3 : High word of the saveid to create
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteExtSaveData(Service::Interface* self) {
+    // TODO(Subv): Figure out the other parameters.
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    MediaType media_type = static_cast<MediaType>(cmd_buff[1] & 0xFF);
+    u32 save_low = cmd_buff[2];
+    u32 save_high = cmd_buff[3];
+    cmd_buff[1] = DeleteExtSaveData(media_type, save_high, save_low).raw;
 }
 
 /**
  * FS_User::CardSlotIsInserted service function.
  *  Inputs:
- *      0: 0x08210000
+ *      0 : 0x08210000
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
  *      2 : Whether there is a game card inserted into the slot or not.
@@ -520,6 +540,48 @@ static void CardSlotIsInserted(Service::Interface* self) {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 }
 
+/**
+ * FS_User::DeleteSystemSaveData service function.
+ *  Inputs:
+ *      0 : 0x08570080
+ *      1 : High word of the SystemSaveData id to delete
+ *      2 : Low word of the SystemSaveData id to delete
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteSystemSaveData(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 savedata_high = cmd_buff[1];
+    u32 savedata_low = cmd_buff[2];
+    
+    cmd_buff[1] = DeleteSystemSaveData(savedata_high, savedata_low).raw;
+}
+
+/**
+ * FS_User::CreateSystemSaveData service function.
+ *  Inputs:
+ *      0 : 0x08560240
+ *      1 : High word of the SystemSaveData id to create
+ *      2 : Low word of the SystemSaveData id to create
+ *      3 : Unknown
+ *      4 : Unknown
+ *      5 : Unknown
+ *      6 : Unknown
+ *      7 : Unknown
+ *      8 : Unknown
+ *      9 : Unknown (Memory address)
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CreateSystemSaveData(Service::Interface* self) {
+    // TODO(Subv): Figure out the other parameters.
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 savedata_high = cmd_buff[1];
+    u32 savedata_low = cmd_buff[2];
+
+    cmd_buff[1] = CreateSystemSaveData(savedata_high, savedata_low).raw;
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x000100C6, nullptr,               "Dummy1"},
     {0x040100C4, nullptr,               "Control"},
@@ -604,7 +666,9 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x084F0102, nullptr,               "ReadSpecialFile"},
     {0x08500040, nullptr,               "GetSpecialFileSize"},
     {0x08510242, CreateExtSaveData,     "CreateExtSaveData"},
-    {0x08520100, nullptr,               "DeleteExtSaveData"},
+    {0x08520100, DeleteExtSaveData,     "DeleteExtSaveData"},
+    {0x08560240, CreateSystemSaveData,  "CreateSystemSaveData"},
+    {0x08570080, DeleteSystemSaveData,  "DeleteSystemSaveData"},
     {0x08580000, nullptr,               "GetMovableSedHashedKeyYRandomData"},
     {0x08610042, nullptr,               "InitializeWithSdkVersion"},
     {0x08620040, nullptr,               "SetPriority"},