Save state

2024-09-06 18:32:09 +01:00
parent 740396296e
commit e7b9033f52
8 changed files with 143 additions and 32 deletions
--- a/src/Library/internal-include/SPU/spu_internal.hpp
+++ b/src/Library/internal-include/SPU/spu_internal.hpp
@@ -1,2 +1,43 @@
 #pragma once
+#include <PSX/System/IOPorts/dma_io.hpp>
+#include <PSX/SPU/spu.hpp>

+namespace JabyEngine {
+    namespace SPU {
+        namespace internal {
+            namespace DMA {
+                static void wait() {
+                    DMA_IO::SPU.wait();
+                }
+
+                static void end() {
+                    SPU_IO::ControlRegister.set_transfer_mode(SPU_IO::ControlRegister::Stop);
+                }
+
+                namespace Receive {
+                    static void prepare() {
+                        SPU_IO::DataTransferControl.write(SPU_IO::DataTransferControl::NormalTransferMode());
+                        SPU_IO::ControlRegister.set_transfer_mode(SPU_IO::ControlRegister::Stop);
+                        SPU_IO::ControlRegister.set_transfer_mode(SPU_IO::ControlRegister::DMAWrite);
+                    }
+
+                    static void set_src(SPU::SRAM_Adr adr) {
+                        DMA_IO::SPU.set_adr(adr);
+                    }
+
+                    static void set_dst(SPU::SRAM_Adr adr) {
+                        SPU_IO::SRAMTransferAdr.write(adr);
+                    }
+
+                    // Not adjusted yet
+                    static void start(uint16_t blockCount, uint16_t wordsPerBlock = 0x10) {
+                        using SyncMode1 = DMA_IO::BCR::SyncMode1;
+
+                        DMA_IO::SPU.block_ctrl.write(DMA_IO::BCR::from(SyncMode1::BlockSize.with(wordsPerBlock), SyncMode1::BlockAmount.with(blockCount)));
+                        DMA_IO::SPU.channel_ctrl.write(DMA_IO::CHCHR::StartSPUReceive());
+                    }
+                }
+            }
+        }
+    }
+}