Play CDDA track

examples/PoolBox/application/src/menu.cpp

@@ -1,4 +1,5 @@
 #include "include/menu.hpp"
+#include <PSX/Audio/CDDA.hpp>
 #include <PSX/Periphery/periphery.hpp>
 
 namespace Menu {
@@ -41,6 +42,9 @@ namespace Menu {
     }
 
     void BackMenu :: setup(JabyEngine::FontWriter* font_writer) {
+        const auto [first_track, last_track] = CDDA::get_tracks();
+        CDDA::play(first_track);
+
         this->font_writer = font_writer;
         this->timeout.reset();
         this->waiting = false;

examples/PoolBox/iso/Config.xml

@@ -33,4 +33,5 @@
         </Directory>
     </Track>
     <CD_Audio>../assets/audio/Evacuation_cdda.wav</CD_Audio>
+    <CD_Audio>../assets/audio/Evacuation_cdda.wav</CD_Audio>
 </ISO_Project>

include/PSX/Audio/CDDA.hpp

@@ -0,0 +1,20 @@
+#pragma once
+#include "../jabyengine_defines.hpp"
+
+namespace JabyEngine {
+    namespace CDDA {
+        struct TrackList {
+            uint8_t first_track;
+            uint8_t last_track;
+
+            static constexpr TrackList empty() {
+                return TrackList{.first_track = 0, .last_track = 0};
+            }
+        };
+
+        TrackList get_tracks();
+
+        void play(uint8_t track);
+        void stop();
+    }
+}

include/PSX/System/IOPorts/cd_io.hpp

@@ -153,10 +153,12 @@ namespace JabyEngine {
 
             static constexpr Desc GetStat{0x01, Interrupt::Type::Acknowledge};
             static constexpr Desc  SetLoc{0x02, Interrupt::Type::Acknowledge};
+            static constexpr Desc    Play{0x03, Interrupt::Type::Acknowledge};
             static constexpr Desc   ReadN{0x06, Interrupt::Type::DataReady};
             static constexpr Desc   Pause{0x09, Interrupt::Type::Complete};
             static constexpr Desc    Init{0x0A, Interrupt::Type::Complete};
             static constexpr Desc SetMode{0x0E, Interrupt::Type::Acknowledge};
+            static constexpr Desc   GetTN{0x13, Interrupt::Type::Acknowledge};
         };
         
         static constexpr auto IORegister1Adr = 0x1F801801;

include/PSX/System/IOPorts/spu_io.hpp

@@ -1,5 +1,6 @@
 #pragma once
 #include "ioport.hpp"
+#include <limits.hpp>
 
 namespace JabyEngine {
     namespace SPU_IO {
@@ -156,6 +157,10 @@ namespace JabyEngine {
             __declare_io_port_w_type(inline, Adr, WorkAreaAdr, 0x1F801DA2);
         };
 
+        static constexpr SimpleVolume operator""_vol(long double fraction) {
+            return {static_cast<int16_t>(static_cast<long double>(I16_MAX)*fraction)};
+        }
+
         __declare_io_port(, ControlRegister,     0x1F801DAA);
         __declare_io_port(, DataTransferControl, 0x1F801DAC);
         __declare_io_port(, PMON,                0x1F801D90);

src/Library/internal-include/CD/cd_internal.hpp

@@ -45,6 +45,8 @@ namespace JabyEngine {
 
             void read_file(AutoLBAEntry file_info, const SectorBufferAllocator& buffer_allocator);
             void continue_reading();
+
+            void enable_CDDA();
         }
     }
 }

src/Library/src/Audio/CDDA.cpp

@@ -0,0 +1,36 @@
+#include "../../internal-include/CD/cd_internal.hpp"
+#include <PSX/Audio/CDDA.hpp>
+#include <stdio.hpp>
+
+namespace JabyEngine {
+    namespace CDDA {
+        namespace CD = JabyEngine::CD::internal;
+
+        TrackList get_tracks() {
+            CD::Command::wait_completed();
+
+            CD_IO::PortIndex0::change_to();
+            CD::Command::send_wait<CD_IO::PortIndex0>(CD_IO::Command::GetTN);
+            
+            const auto stat       = CD_IO::PortIndex0::ResponseFifo.read();
+            const auto first      = CD_IO::PortIndex0::ResponseFifo.read().raw;
+            const auto end        = CD_IO::PortIndex0::ResponseFifo.read().raw;
+            const auto last_track = (end - first) + 1;
+
+            if(last_track == 1) {
+                return TrackList::empty();
+            }
+
+            return TrackList{.first_track = 2, .last_track = static_cast<uint8_t>(last_track)};
+        }
+
+        void play(uint8_t track) {
+            CD::enable_CDDA(); // < Command waits
+            CD::Command::send<CD_IO::PortIndex0>(CD_IO::Command::Play, track);
+        }
+
+        void stop() {
+
+        }
+    }
+}

src/Library/src/BootLoader/spu_boot.cpp

@@ -15,8 +15,8 @@ namespace JabyEngine {
             }
 
             static void clear_cd_and_ext_audio_volume() {
-                CDVolume::Left.write({0});
-                CDVolume::Right.write({0});
+                CDVolume::Left.write(0.5_vol);
+                CDVolume::Right.write(0.5_vol);
 
                 ExternalAudioInputVolume::Left.write({0});
                 ExternalAudioInputVolume::Right.write({0});

src/Library/src/CD/cd.cpp

@@ -6,6 +6,7 @@
 namespace JabyEngine {
     namespace CD {
         namespace internal {
+            static constexpr auto AudioSectorMode = CD_IO::Mode::from(CD_IO::Mode::SingleSpeed, CD_IO::Mode::CDDA);
             static constexpr auto DataSectorMode  = CD_IO::Mode::from(CD_IO::Mode::DoubleSpeed, CD_IO::Mode::DataSector);
             
             static SysCall::InterruptVerifierResult interrupt_verifier();
@@ -136,6 +137,12 @@ namespace JabyEngine {
                     read_cd(cur_lba);    
                 }                
             }
+
+            void enable_CDDA() {
+                Command::wait_completed();
+                CD_IO::PortIndex0::change_to();
+                Command::send_wait<CD_IO::PortIndex0>(CD_IO::Command::SetMode, AudioSectorMode);                
+            }
         }
     }
 }