add NDMA start mode 0x0A (AES input FIFO)

src/DSi_AES.cpp

@@ -191,6 +191,8 @@ void WriteCnt(u32 val)
     {
         // transfer start (checkme)
         RemBlocks = BlkCnt >> 16;
+
+        DSi::CheckNDMAs(1, 0x2A);
     }
 
     printf("AES CNT: %08X / mode=%d inDMA=%d outDMA=%d blocks=%d\n",
@@ -204,7 +206,8 @@ void WriteBlkCnt(u32 val)
 
 u32 ReadOutputFIFO()
 {
-    return OutputFIFO->Read();
+    u32 ret = OutputFIFO->Read();
+    return ret;
 }
 
 void WriteInputFIFO(u32 val)
@@ -234,17 +237,30 @@ void WriteInputFIFO(u32 val)
 
     if (OutputFIFO->Level() >= OutputDMASize)
     {
-        // trigger DMA
+        // trigger output DMA
         DSi::CheckNDMAs(1, 0x2B);
     }
-    // TODO: DMA the other way around
 
     if (RemBlocks == 0)
     {
         Cnt &= ~(1<<31);
         if (Cnt & (1<<30)) NDS::SetIRQ2(NDS::IRQ2_DSi_AES);
+        DSi::StopNDMAs(1, 0x2A);
         DSi::StopNDMAs(1, 0x2B);
     }
+    else
+    {
+        CheckInputDMA();
+    }
+}
+
+void CheckInputDMA()
+{
+    if (InputFIFO->Level() < InputDMASize)
+    {
+        // trigger input DMA
+        DSi::CheckNDMAs(1, 0x2A);
+    }
 }
 
 

src/DSi_AES.h

@@ -36,6 +36,7 @@ void WriteBlkCnt(u32 val);
 
 u32 ReadOutputFIFO();
 void WriteInputFIFO(u32 val);
+void CheckInputDMA();
 
 void WriteIV(u32 offset, u32 val, u32 mask);
 void WriteMAC(u32 offset, u32 val, u32 mask);

src/DSi_NDMA.cpp

@@ -21,6 +21,7 @@
 #include "DSi.h"
 #include "DSi_NDMA.h"
 #include "GPU.h"
+#include "DSi_AES.h"
 
 
 
@@ -100,7 +101,7 @@ void DSi_NDMA::WriteCnt(u32 val)
             Start();
 
         if (StartMode != 0x10 && StartMode != 0x30 &&
-            StartMode != 0x2B)
+            StartMode != 0x2A && StartMode != 0x2B)
             printf("UNIMPLEMENTED ARM%d NDMA%d START MODE %02X, %08X->%08X\n", CPU?7:9, Num, StartMode, SrcAddr, DstAddr);
     }
 }
@@ -290,6 +291,7 @@ void DSi_NDMA::Run7()
         CurDstAddr += DstAddrInc<<2;
         IterCount--;
         RemCount--;
+        TotalRemCount--;
 
         if (NDS::ARM7Timestamp >= NDS::ARM7Target) break;
     }
@@ -303,6 +305,8 @@ void DSi_NDMA::Run7()
         {
             Running = 0;
             NDS::ResumeCPU(1, 1<<(Num+4));
+
+            DSi_AES::CheckInputDMA();
         }
 
         return;
@@ -325,4 +329,6 @@ void DSi_NDMA::Run7()
     Running = 0;
     InProgress = false;
     NDS::ResumeCPU(1, 1<<(Num+4));
+
+    DSi_AES::CheckInputDMA();
 }