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CDROM: Implement GetlocP/GetlocL commands

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This commit is contained in:
Connor McLaughlin
2019-10-04 19:05:19 +10:00
parent bbe1fc062f
commit 0b46a8cfc4
3 changed files with 98 additions and 62 deletions
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53
src/core/cdrom.h
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@ -1,11 +1,11 @@
#pragma once
#include "common/bitfield.h"
#include "common/fifo_queue.h"
#include "common/cd_image.h"
#include "types.h"
#include <string>
#include <vector>
class CDImage;
class StateWrapper;
class System;
@ -34,6 +34,14 @@ public:
void Execute(TickCount ticks);
private:
enum : u32
{
RAW_SECTOR_SIZE = CDImage::RAW_SECTOR_SIZE,
SECTOR_SYNC_SIZE = CDImage::SECTOR_SYNC_SIZE,
SECTOR_HEADER_SIZE = CDImage::SECTOR_HEADER_SIZE,
SECTOR_XA_SUBHEADER_SIZE = CDImage::SECTOR_XA_SUBHEADER_SIZE,
};
static constexpr u32 PARAM_FIFO_SIZE = 16;
static constexpr u32 RESPONSE_FIFO_SIZE = 16;
static constexpr u32 DATA_FIFO_SIZE = 4096;
@ -146,41 +154,6 @@ private:
BitField<u8, bool, 7, 1> BFRD;
};
struct CDSectorHeader
{
u8 minute;
u8 second;
u8 frame;
u8 sector_mode;
};
struct XASubHeader
{
u8 file_number;
u8 channel_number;
union Submode
{
u8 bits;
BitField<u8, bool, 0, 1> eor;
BitField<u8, bool, 1, 1> video;
BitField<u8, bool, 2, 1> audio;
BitField<u8, bool, 3, 1> data;
BitField<u8, bool, 4, 1> trigger;
BitField<u8, bool, 5, 1> form2;
BitField<u8, bool, 6, 1> realtime;
BitField<u8, bool, 7, 1> eof;
} submode;
union Codinginfo
{
u8 bits;
BitField<u8, u8, 0, 2> mono_stereo;
BitField<u8, u8, 2, 2> sample_rate;
BitField<u8, u8, 4, 2> bits_per_sample;
BitField<u8, bool, 6, 1> emphasis;
} codinginfo;
};
bool HasPendingInterrupt() const { return m_interrupt_flag_register != 0; }
void SetInterrupt(Interrupt interrupt);
void PushStatResponse(Interrupt interrupt = Interrupt::ACK);
@ -213,13 +186,15 @@ private:
bool m_reading = false;
bool m_muted = false;
Loc m_setloc = {};
bool m_setloc_dirty = false;
StatusRegister m_status = {};
SecondaryStatusRegister m_secondary_status = {};
ModeRegister m_mode = {};
Loc m_setloc = {};
bool m_setloc_dirty = false;
CDImage::SectorHeader m_last_sector_header = {};
CDImage::XASubHeader m_last_sector_subheader = {};
u8 m_interrupt_enable_register = INTERRUPT_REGISTER_MASK;
u8 m_interrupt_flag_register = 0;