From 89ab744486821b3ec3823a2de90ab6242e9ec3c3 Mon Sep 17 00:00:00 2001
From: Jaby <fenir50@web.de>
Date: Wed, 31 Aug 2022 22:16:16 +0200
Subject: [PATCH] DTC

---
 include/PSX/Auxiliary/io_class_helper.hpp | 7 +++++++
 include/PSX/System/IOPorts/SPU_IO.hpp     | 6 ++++++
 src/Library/src/BootLoader/boot_spu.cpp   | 1 +
 3 files changed, 14 insertions(+)

diff --git a/include/PSX/Auxiliary/io_class_helper.hpp b/include/PSX/Auxiliary/io_class_helper.hpp
index 70eadd89..0cbf4371 100644
--- a/include/PSX/Auxiliary/io_class_helper.hpp
+++ b/include/PSX/Auxiliary/io_class_helper.hpp
@@ -38,4 +38,11 @@ static constexpr __always_inline void io_class__update_with(T& dst, const T& src
     const_cast<volatile DST_VALUE&>(dst.raw_value) = src.raw_value;
 }
 
+template<typename T, typename U>
+static constexpr __always_inline void io_class__update_with(T& dst, const U& src) {
+    typedef decltype(dst.raw_value) DST_VALUE;
+
+    const_cast<volatile DST_VALUE&>(dst.raw_value) = src;
+}
+
 #endif //!__JABYENGINE_IO_CLASS_HELPER_HPP__
\ No newline at end of file
diff --git a/include/PSX/System/IOPorts/SPU_IO.hpp b/include/PSX/System/IOPorts/SPU_IO.hpp
index 0fbddfa0..a2cff798 100644
--- a/include/PSX/System/IOPorts/SPU_IO.hpp
+++ b/include/PSX/System/IOPorts/SPU_IO.hpp
@@ -212,6 +212,12 @@ namespace SPU {
         io_class__2option_map_getter_is(bool, external_audio_off,  external_audio_on,  1);
         io_class__2option_map_getter_is(bool, cd_audio_disable,    cd_audio_enable,    0);
     };
+
+    struct __no_align DataTransferControl {
+        static inline __always_inline auto& Register = *reinterpret_cast<DataTransferControl*>(0x1F801DAC);
+
+        uint16_t raw_value = 0;
+    };
 }
 
 #endif //!__JABYENGINE_SPU_IO_HPP__
\ No newline at end of file
diff --git a/src/Library/src/BootLoader/boot_spu.cpp b/src/Library/src/BootLoader/boot_spu.cpp
index 448e2c25..e10dddb2 100644
--- a/src/Library/src/BootLoader/boot_spu.cpp
+++ b/src/Library/src/BootLoader/boot_spu.cpp
@@ -41,6 +41,7 @@ namespace SPU {
             clear_voice(voice);
         }
 
+        io_class__update_with(DataTransferControl::Register, (2 << 1));
         enable_control();
     }
 }
\ No newline at end of file