// license:BSD-3-Clause
// copyright-holders:David Haywood
#ifndef MAME_MACHINE_SEGACDCD_H
#define MAME_MACHINE_SEGACDCD_H
#include "imagedev/chd_cd.h"
#include "machine/timer.h"
#include "sound/cdda.h"
typedef device_delegate<void (int&, uint8_t*, uint16_t&, uint16_t&)> segacd_dma_delegate;
typedef device_delegate<void (void)> interrupt_delegate;
#define MCFG_SEGACD_HACK_SET_CDC_DO_DMA( _class, _method) \
downcast<lc89510_temp_device &>(*device).set_CDC_Do_DMA(segacd_dma_delegate(&_class::_method, #_class "::" #_method, nullptr, (_class *)nullptr));
#define MCFG_SEGACD_HACK_SET_NEOCD \
downcast<lc89510_temp_device &>(*device).set_is_neoCD(true);
#define MCFG_SET_TYPE1_INTERRUPT_CALLBACK( _class, _method) \
downcast<lc89510_temp_device &>(*device).set_type1_interrupt_callback(interrupt_delegate(&_class::_method, #_class "::" #_method, nullptr, (_class *)nullptr));
#define MCFG_SET_TYPE2_INTERRUPT_CALLBACK( _class, _method) \
downcast<lc89510_temp_device &>(*device).set_type2_interrupt_callback(interrupt_delegate(&_class::_method, #_class "::" #_method, nullptr, (_class *)nullptr));
#define MCFG_SET_TYPE3_INTERRUPT_CALLBACK( _class, _method) \
downcast<lc89510_temp_device &>(*device).set_type3_interrupt_callback(interrupt_delegate(&_class::_method, #_class "::" #_method, nullptr, (_class *)nullptr));
class lc89510_temp_device : public device_t
{
public:
void set_is_neoCD(bool new_is_neoCD) { is_neoCD = new_is_neoCD; }
template <typename Object> void set_type1_interrupt_callback(Object &&callback) { type1_interrupt_callback = std::forward<Object>(callback); }
template <typename Object> void set_type2_interrupt_callback(Object &&callback) { type2_interrupt_callback = std::forward<Object>(callback); }
template <typename Object> void set_type3_interrupt_callback(Object &&callback) { type3_interrupt_callback = std::forward<Object>(callback); }
template <typename Object> void set_CDC_Do_DMA(Object &&callback) { segacd_dma_callback = std::forward<Object>(callback); }
lc89510_temp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
uint16_t get_segacd_irq_mask() const { return segacd_irq_mask; }
DECLARE_READ16_MEMBER( segacd_irq_mask_r );
DECLARE_WRITE16_MEMBER( segacd_irq_mask_w );
DECLARE_READ16_MEMBER( segacd_cdd_ctrl_r );
DECLARE_WRITE16_MEMBER( segacd_cdd_ctrl_w );
DECLARE_READ8_MEMBER( segacd_cdd_rx_r );
DECLARE_WRITE8_MEMBER( segacd_cdd_tx_w );
READ16_MEMBER( segacd_cdfader_r );
WRITE16_MEMBER( segacd_cdfader_w );
WRITE16_MEMBER( segacd_cdc_mode_address_w );
READ16_MEMBER( segacd_cdc_mode_address_r );
WRITE16_MEMBER( segacd_cdc_data_w );
READ16_MEMBER( segacd_cdc_data_r );
READ16_MEMBER( cdc_data_sub_r );
READ16_MEMBER( cdc_data_main_r );
void CDC_Do_DMA(running_machine& machine, int rate);
uint8_t CDC_Reg_r(void);
void CDC_Reg_w(uint8_t data);
void reset_cd();
// NeoGeo CD stuff
void neocd_cdd_tx_w(uint8_t data);
uint8_t neocd_cdd_rx_r();
void NeoCDCommsControl(uint8_t clock, uint8_t send);
void NeoCDCommsReset();
uint16_t nff0016_r();
void nff0016_set(uint16_t wordValue);
void nff0002_set(uint16_t wordValue);
char* LC8915InitTransfer(int NeoCDDMACount);
void LC8915EndTransfer();
protected:
static constexpr unsigned SECTOR_SIZE = 2352;
static constexpr unsigned EXTERNAL_BUFFER_SIZE = (32 * 1024 * 2) + SECTOR_SIZE;
// HACK for DMA handling
segacd_dma_delegate segacd_dma_callback;
interrupt_delegate type1_interrupt_callback;
interrupt_delegate type2_interrupt_callback;
interrupt_delegate type3_interrupt_callback;
void Fake_CDC_Do_DMA(int &dmacount, uint8_t *CDC_BUFFER, uint16_t &dma_addrc, uint16_t &destination );
void dummy_interrupt_callback(void);
// HACK for neoCD handling
bool is_neoCD;
struct segacd_t
{
cdrom_file *cd;
const cdrom_toc *toc;
uint32_t current_frame;
};
segacd_t segacd;
uint8_t SCD_BUFFER[2560];
uint32_t SCD_STATUS;
uint32_t SCD_STATUS_CDC;
int32_t SCD_CURLBA;
uint8_t SCD_CURTRK;
uint16_t CDC_DECODE;
uint16_t CDC_REG0;
uint16_t CDC_REG1;
uint8_t CDC_BUFFER[EXTERNAL_BUFFER_SIZE];
uint8_t CDD_RX[10];
uint8_t CDD_TX[10];
uint32_t CDD_STATUS;
uint32_t CDD_MIN;
uint32_t CDD_SEC;
uint32_t CDD_FRAME;
uint32_t CDD_EXT;
uint16_t CDD_CONTROL;
int16_t CDD_DONE;
inline int to_bcd(int val, bool byte);
void set_data_audio_mode(void);
void CDD_DoChecksum(void);
bool CDD_Check_TX_Checksum(void);
void CDD_Export(bool neocd_hack = false);
void scd_ctrl_checks(running_machine& machine);
void scd_advance_current_readpos(void);
int Read_LBA_To_Buffer(running_machine& machine);
void CDD_GetStatus(void);
void CDD_Stop(running_machine &machine);
void CDD_GetPos(void);
void CDD_GetTrackPos(void);
void CDD_GetTrack(void);
void CDD_Length(void);
void CDD_FirstLast(void);
void CDD_GetTrackAdr(void);
void CDD_GetTrackType(void);
uint32_t getmsf_from_regs(void);
void CDD_Play(running_machine &machine);
void CDD_Seek(void);
void CDD_Pause(running_machine &machine);
void CDD_Resume(running_machine &machine);
void CDD_FF(running_machine &machine);
void CDD_RW(running_machine &machine);
void CDD_Open(void);
void CDD_Close(void);
void CDD_Init(void);
void CDD_Default(void);
void CDD_Reset(void);
void CDC_Reset(void);
void lc89510_Reset(void);
void CDC_End_Transfer(running_machine& machine);
uint16_t CDC_Host_r(running_machine& machine, uint16_t type);
void CDD_Process(running_machine& machine, int reason);
void CDD_Handle_TOC_Commands(void);
bool CDD_Import(running_machine& machine);
uint16_t segacd_irq_mask;
cdda_device* m_cdda;
/* NeoCD */
uint16_t nff0002;
uint16_t nff0016;
int32_t LC8951RegistersR[16];
int32_t LC8951RegistersW[16];
bool bNeoCDCommsClock;
int32_t NeoCDCommsWordCount;
int32_t NeoCD_StatusHack;
void LC8951UpdateHeader();
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
TIMER_DEVICE_CALLBACK_MEMBER( segacd_access_timer_callback );
};
DECLARE_DEVICE_TYPE(LC89510_TEMP, lc89510_temp_device)
#endif // MAME_MACHINE_SEGACDCD_H