154 lines
6.7 KiB
C++
154 lines
6.7 KiB
C++
#ifndef __JABYENGINE_SPU_IO_HPP__
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#define __JABYENGINE_SPU_IO_HPP__
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#include "ioport.hpp"
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namespace JabyEngine {
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namespace SPU_IO {
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enum struct Mode {
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Linear = 0,
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Exponential = 1,
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};
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enum struct Direction {
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Increase = 0,
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Decrease = 1,
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};
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enum struct Phase {
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Posititve = 0,
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Negative = 1,
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};
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//0..0x1F = Fast..Slow
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typedef uint8_t Shift;
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//0..3 = +7, +6, +5, +4 or -6, -7, -6, -5
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typedef uint8_t Step;
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typedef int16_t SimpleVolume;
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struct SampleRate : public ComplexBitMap<uint16_t> {
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static constexpr SampleRate from_HZ(double freq) {
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//4096 == 44100Hz
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constexpr double Base = (4096.0 / 44100.0);
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return {static_cast<uint16_t>((freq*Base))};
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}
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};
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struct SweepVolume : public ComplexBitMap<int16_t> {
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// For Volume Mode
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static constexpr auto SweepEnable = Bit<int16_t>(15);
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static constexpr auto VolumeEnable = !SweepEnable;
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static constexpr auto Volume = BitRange<int16_t>::from_to(0, 14);
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// For Sweep Mode
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static constexpr auto SweepMode = Bit<Mode>(14);
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static constexpr auto SweepDirection = Bit<Direction>(13);
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static constexpr auto SweepPhase = Bit<Phase>(12);
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static constexpr auto SweepShift = BitRange<Shift>::from_to(2, 6);
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static constexpr auto SweepStep = BitRange<Step>::from_to(0, 1);
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};
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struct SR : public ComplexBitMap<uint16_t> {
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static constexpr auto SustainMode = Bit<Mode>(31 - 16);
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static constexpr auto SustainDirection = Bit<Direction>(30 - 16);
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static constexpr auto SustainShift = BitRange<Shift>::from_to((24 - 16), (28 - 16));
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static constexpr auto SustainStep = BitRange<Step>::from_to((22 - 16), (23 - 16));
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static constexpr auto ReleaseMode = Bit<Mode>(21 - 16);
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static constexpr auto ReleaseShift = BitRange<Shift>::from_to((16 - 16), (20 - 16));
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};
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struct AD : public ComplexBitMap<uint16_t> {
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static constexpr auto AttackMode = Bit<Mode>(15);
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static constexpr auto AttackShift = BitRange<Shift>::from_to(10, 14);
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static constexpr auto AttackStep = BitRange<Step>::from_to(8, 9);
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static constexpr auto DecayShift = BitRange<Shift>::from_to(4, 7);
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static constexpr auto SustainLevel = BitRange<uint16_t>::from_to(0, 3);
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};
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struct __no_align Voice {
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IOPort<SweepVolume::UnderlyingType, SweepVolume> volumeLeft; //Offset: 0x0
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IOPort<SweepVolume::UnderlyingType, SweepVolume> volumeRight; //Offset: 0x2
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IOPort<SampleRate::UnderlyingType, SampleRate> sampleRate; //Offset: 0x4;
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IOPort<uint16_t, uint16_t> adr; //Offset: 0x6
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IOPort<AD::UnderlyingType, AD> ad; //Offset: 0x8
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IOPort<SR::UnderlyingType, SR> sr; //Offset: 0xA
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IOPort<SimpleVolume, SimpleVolume> currentVolume; //Offset: 0xC
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IOPort<uint16_t, uint16_t> repeatAdr; //Offset: 0xE
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};
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struct ControlRegister : public ComplexBitMap<uint16_t> {
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enum RAMTransferMode {
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Stop = 0,
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ManualWrite = 1,
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DMAWrite = 2,
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DMARead = 3
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};
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static constexpr auto Enable = Bit<uint16_t>(15);
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static constexpr auto Unmute = Bit<uint16_t>(14);
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static constexpr auto NoiseFrequcenyShift = BitRange<Shift>::from_to(10, 13);
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static constexpr auto NoiseFrequcenyStep = BitRange<Step>::from_to(8, 9);
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static constexpr auto ReverbMasterEnable = Bit<uint16_t>(7);
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static constexpr auto IRQ9Enable = Bit<uint16_t>(6);
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static constexpr auto TransferMode = BitRange<RAMTransferMode>::from_to(4, 5);
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static constexpr auto ExternalAudioReverb = Bit<uint16_t>(3);
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static constexpr auto CDAudioReverb = Bit<uint16_t>(2);
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static constexpr auto ExternalAudioEnable = Bit<uint16_t>(1);
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static constexpr auto CDAudioEnable = Bit<uint16_t>(0);
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};
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struct PitchModFlags : public ComplexBitMap<uint16_t> {
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static constexpr BitRange<uint16_t> EnableBits = BitRange<uint16_t>::from_to(1, 23);
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};
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struct NoiseGenerator : public ComplexBitMap<uint16_t> {
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static constexpr BitRange<uint16_t> NoiseBits = BitRange<uint16_t>::from_to(0, 23);
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};
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struct EchoOn : public ComplexBitMap<uint16_t> {
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static constexpr BitRange<uint16_t> EchoBits = BitRange<uint16_t>::from_to(0, 23);
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};
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static constexpr size_t VoiceCount = 24;
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struct Key {
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__declare_global_raw(inline, ubus32_t, On, 0x1F801D88);
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__declare_global_raw(inline, ubus32_t, Off, 0x1F801D8C);
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__declare_global_raw(inline, ubus32_t, Status, 0x1F801D9C);
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};
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struct MainVolume {
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__declare_io_port_member(SweepVolume, Left, 0x1F801D80);
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__declare_io_port_member(SweepVolume, Right, 0x1F801D82);
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};
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struct CDVolume {
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__declare_io_port_member_simple(SimpleVolume, Left, 0x1F801DB0);
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__declare_io_port_member_simple(SimpleVolume, Right, 0x1F801DB2);
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};
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struct ExternalAudioInputVolume {
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__declare_io_port_member_simple(SimpleVolume, Left, 0x1F801DB4);
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__declare_io_port_member_simple(SimpleVolume, Right, 0x1F801DB6);
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};
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struct Reverb {
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struct Volume {
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__declare_io_port_member_simple(SimpleVolume, Left, 0x1F801D84);
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__declare_io_port_member_simple(SimpleVolume, Right, 0x1F801D86);
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};
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__declare_io_port_member_simple(uint16_t, WorkAreaAdr, 0x1F801DA2);
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};
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__declare_io_port_global(ControlRegister, Control, 0x1F801DAA);
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__declare_io_port_global_simple(uint16_t, DataTransferControl, 0x1F801DAC);
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__declare_io_port_global(PitchModFlags, PMON, 0x1F801D90);
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__declare_io_port_global(NoiseGenerator, NON, 0x1F801D94);
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__declare_io_port_global(EchoOn, EON, 0x1F801D98);
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__declare_io_port_global_array(struct Voice, Voice, 0x1F801C00, VoiceCount);
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}
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}
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#endif //!__JABYENGINE_SPU_IO_HPP__
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