Fix https://github.com/AuroraWright/Luma3DS/issues/1095 and https://github.com/AuroraWright/Luma3DS/issues/1118

k11_extension/source/svc/GetSystemInfo.c

@@ -71,7 +71,7 @@ Result GetSystemInfoHook(s64 *out, s32 type, s32 param)
                 case 0x201: // isN3DS
                     *out = (cfwInfo.flags >> 4) & 1;
                     break;
-                case 0x202: // isSafeMode
+                case 0x202: // needToInitSd
                     *out = (cfwInfo.flags >> 5) & 1;
                     break;
                 case 0x203: // isSdMode

source/firm.c

@@ -344,7 +344,7 @@ static inline void mergeSection0(FirmwareType firmType, u32 firmVersion, bool lo
     }
 }
 
-u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, bool loadFromStorage, bool isFirmProtEnabled, bool isSafeMode, bool doUnitinfoPatch)
+u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, bool loadFromStorage, bool isFirmProtEnabled, bool needToInitSd, bool doUnitinfoPatch)
 {
     u8 *arm9Section = (u8 *)firm + firm->section[2].offset,
        *arm11Section1 = (u8 *)firm + firm->section[1].offset;
@@ -374,7 +374,7 @@ u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, bool loadFromStora
     //Skip on FIRMs < 4.0
     if(ISN3DS || firmVersion >= 0x1D)
     {
-        ret += installK11Extension(arm11Section1, firm->section[1].size, isSafeMode, baseK11VA, arm11ExceptionsPage, &freeK11Space);
+        ret += installK11Extension(arm11Section1, firm->section[1].size, needToInitSd, baseK11VA, arm11ExceptionsPage, &freeK11Space);
         ret += patchKernel11(arm11Section1, firm->section[1].size, baseK11VA, arm11SvcTable, arm11ExceptionsPage);
     }
 

source/firm.h

@@ -31,7 +31,7 @@
 
 u32 loadNintendoFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStorage, bool isSafeMode);
 void loadHomebrewFirm(u32 pressed);
-u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, bool loadFromStorage, bool isFirmProtEnabled, bool isSafeMode, bool doUnitinfoPatch);
+u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, bool loadFromStorage, bool isFirmProtEnabled, bool needToInitSd, bool doUnitinfoPatch);
 u32 patchTwlFirm(u32 firmVersion, bool loadFromStorage, bool doUnitinfoPatch);
 u32 patchAgbFirm(bool loadFromStorage, bool doUnitinfoPatch);
 u32 patch1x2xNativeAndSafeFirm(void);

source/main.c

@@ -51,6 +51,7 @@ void main(int argc, char **argv, u32 magicWord)
 {
     bool isFirmProtEnabled,
          isSafeMode = false,
+         needToInitSd = false,
          isNoForceFlagSet = false,
          isNtrBoot;
     FirmwareType firmType;
@@ -192,9 +193,16 @@ void main(int argc, char **argv, u32 magicWord)
             goto boot;
         }
 
-        /* Else, force the last used boot options unless a button is pressed
+        //Account for DSiWare soft resets if exiting TWL_FIRM
+        if(CFG_BOOTENV == 3)
+        {
+            static const u8 TLNC[] = {0x54, 0x4C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4E, 0x43};
+            if(memcmp((void *)0x20000C00, TLNC, 10) == 0) needToInitSd = true;
+        }
+
+        /* Force the last used boot options if autobooting a TWL title, or unless a button is pressed
            or the no-forcing flag is set */
-        if(!pressed && !BOOTCFG_NOFORCEFLAG)
+        if(needToInitSd || memcmp((void *)0x20000300, "TLNC", 4) == 0 || (!pressed && !BOOTCFG_NOFORCEFLAG))
         {
             nandType = (FirmwareSource)BOOTCFG_NAND;
             firmSource = (FirmwareSource)BOOTCFG_FIRM;
@@ -223,6 +231,7 @@ void main(int argc, char **argv, u32 magicWord)
         firmSource = FIRMWARE_SYSNAND;
 
         isSafeMode = true;
+        needToInitSd = true;
 
         //If the PIN has been verified, wait to make it easier to press the SAFE_MODE combo
         if(pinExists && !shouldLoadConfigMenu)
@@ -328,7 +337,7 @@ boot:
     switch(firmType)
     {
         case NATIVE_FIRM:
-            res = patchNativeFirm(firmVersion, nandType, loadFromStorage, isFirmProtEnabled, isSafeMode, doUnitinfoPatch);
+            res = patchNativeFirm(firmVersion, nandType, loadFromStorage, isFirmProtEnabled, needToInitSd, doUnitinfoPatch);
             break;
         case TWL_FIRM:
             res = patchTwlFirm(firmVersion, loadFromStorage, doUnitinfoPatch);

source/patches.c

@@ -100,7 +100,7 @@ static inline u32 *getKernel11HandlerVAPos(u8 *pos, u32 *arm11ExceptionsPage, u3
     return (u32 *)(pos + pointedInstructionVA - baseK11VA + 8);
 }
 
-u32 installK11Extension(u8 *pos, u32 size, bool isSafeMode, u32 baseK11VA, u32 *arm11ExceptionsPage, u8 **freeK11Space)
+u32 installK11Extension(u8 *pos, u32 size, bool needToInitSd, u32 baseK11VA, u32 *arm11ExceptionsPage, u8 **freeK11Space)
 {
     //The parameters to be passed on to the kernel ext
     //Please keep that in sync with the definition in k11_extension/source/main.c
@@ -201,7 +201,7 @@ u32 installK11Extension(u8 *pos, u32 size, bool isSafeMode, u32 baseK11VA, u32 *
 
     if(ISRELEASE) info->flags = 1;
     if(ISN3DS) info->flags |= 1 << 4;
-    if(isSafeMode) info->flags |= 1 << 5;
+    if(needToInitSd) info->flags |= 1 << 5;
     if(isSdMode) info->flags |= 1 << 6;
 
     return 0;

source/patches.h

@@ -39,7 +39,7 @@
 
 u8 *getProcess9Info(u8 *pos, u32 size, u32 *process9Size, u32 *process9MemAddr);
 u32 *getKernel11Info(u8 *pos, u32 size, u32 *baseK11VA, u8 **freeK11Space, u32 **arm11SvcHandler, u32 **arm11ExceptionsPage);
-u32 installK11Extension(u8 *pos, u32 size, bool isSafeMode, u32 baseK11VA, u32 *arm11ExceptionsPage, u8 **freeK11Space);
+u32 installK11Extension(u8 *pos, u32 size, bool needToInitSd, u32 baseK11VA, u32 *arm11ExceptionsPage, u8 **freeK11Space);
 u32 patchKernel11(u8 *pos, u32 size, u32 baseK11VA, u32 *arm11SvcTable, u32 *arm11ExceptionsPage);
 u32 patchSignatureChecks(u8 *pos, u32 size);
 u32 patchOldSignatureChecks(u8 *pos, u32 size);

sysmodules/loader/source/loader.c

@@ -12,7 +12,7 @@
 #define HBLDR_3DSX_TID  (*(vu64 *)0x1FF81100)
 
 u32 config, multiConfig, bootConfig;
-bool isN3DS, isSafeMode, isSdMode;
+bool isN3DS, needToInitSd, isSdMode;
 
 const char CODE_PATH[] = {0x01, 0x00, 0x00, 0x00, 0x2E, 0x63, 0x6F, 0x64, 0x65, 0x00, 0x00, 0x00};
 
@@ -47,12 +47,12 @@ static inline void loadCFWInfo(void)
     if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x201))) svcBreak(USERBREAK_ASSERT);
     isN3DS = (bool)out;
     if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x202))) svcBreak(USERBREAK_ASSERT);
-    isSafeMode = (bool)out;
+    needToInitSd = (bool)out;
     if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x203))) svcBreak(USERBREAK_ASSERT);
     isSdMode = (bool)out;
 
     IFile file;
-    if(isSafeMode) fileOpen(&file, ARCHIVE_SDMC, "/", FS_OPEN_READ); //Init SD card if SAFE_MODE is being booted
+    if(needToInitSd) fileOpen(&file, ARCHIVE_SDMC, "/", FS_OPEN_READ); //Init SD card if SAFE_MODE is being booted
 }
 
 static int lzss_decompress(u8 *end)

sysmodules/loader/source/patcher.h

@@ -39,7 +39,7 @@ enum singleOptions
 };
 
 extern u32 config, multiConfig, bootConfig;
-extern bool isN3DS, isSafeMode, isSdMode;
+extern bool isN3DS, needToInitSd, isSdMode;
 
 void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 roSize, u32 dataSize, u32 roAddress, u32 dataAddress);
 Result fileOpen(IFile *file, FS_ArchiveID archiveId, const char *path, int flags);