#ifndef _included_psxcdrom_ #define _included_psxcdrom_ #include "imagedev/chd_cd.h" #include "sound/spu.h" #define MAX_PSXCD_TIMERS (4) const int num_commands=0x20; // // // //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_PSXCD_ADD(_tag, _devname) \ MCFG_DEVICE_ADD(_tag, PSXCD, 0) #define MCFG_PSXCD_IRQ_HANDLER(_devcb) \ devcb = &psxcd_device::set_irq_handler(*device, DEVCB2_##_devcb); class psxcd_device : public cdrom_image_device { public: psxcd_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // static configuration helpers template static devcb2_base &set_irq_handler(device_t &device, _Object object) { return downcast(device).m_irq_handler.set_callback(object); } static void static_set_devname(device_t &device, const char *devname); private: struct command_result { unsigned char data[32], sz, res; command_result *next; }; static const unsigned int sector_buffer_size=16, default_irq_delay=16000; //480; //8000; //2000<<2; static const unsigned int raw_sector_size=2352; unsigned char sr,res,ir,cmdmode, cmdbuf[64],*cbp, mode, secbuf[sector_buffer_size][raw_sector_size], *secptr, filter_file, filter_channel, lastsechdr[8], status; int rdp,secsize,secleft,secskip, sechead,sectail; command_result *res_queue, *cur_res; union CDPOS { UINT8 b[4]; UINT32 w; }; CDPOS loc, curpos; #ifdef LSB_FIRST enum { M = 2, S = 1, F = 0 }; #else enum { M = 1, S = 2, F = 3 }; #endif bool open, m_mute, streaming; device_timer_id next_read_event; INT64 next_sector_t; unsigned int autopause_sector; unsigned int start_read_delay, read_sector_cycles, preread_delay; void write_command(const unsigned char byte); struct command_info { void (psxcd_device::*func)(); const char *name; }; void cdcmd_sync(); void cdcmd_nop(); void cdcmd_setloc(); void cdcmd_play(); void cdcmd_forward(); void cdcmd_backward(); void cdcmd_readn(); void cdcmd_standby(); void cdcmd_stop(); void cdcmd_pause(); void cdcmd_init(); void cdcmd_mute(); void cdcmd_demute(); void cdcmd_setfilter(); void cdcmd_setmode(); void cdcmd_getparam(); void cdcmd_getlocl(); void cdcmd_getlocp(); void cdcmd_illegal(); void cdcmd_gettn(); void cdcmd_gettd(); void cdcmd_seekl(); void cdcmd_seekp(); void cdcmd_test(); void cdcmd_id(); void cdcmd_reads(); void cdcmd_reset(); void cdcmd_readtoc(); static command_info cmd_table[num_commands]; void cmd_complete(command_result *res); void add_result(command_result *res); void send_result(const unsigned int res, const unsigned char *data=NULL, const unsigned int sz=0, const unsigned int delay=default_irq_delay); void start_read(); void start_play(); void start_streaming(); void stop_read(); void read_sector(); bool read_next_sector(); void play_sector(); void preread_sector(); UINT32 sub_loc(CDPOS src1, CDPOS src2); public: virtual void device_start(); virtual void device_reset(); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); virtual bool call_load(); virtual void call_unload(); void start_dma(UINT8 *mainram, UINT32 size); DECLARE_WRITE8_MEMBER( write ); DECLARE_READ8_MEMBER( read ); private: UINT32 m_param_count; UINT32 m_sysclock; emu_timer *m_timers[MAX_PSXCD_TIMERS]; bool m_timerinuse[MAX_PSXCD_TIMERS]; int add_system_event(int type, UINT64 t, void *ptr); devcb2_write_line m_irq_handler; cpu_device *m_maincpu; spu_device *m_spu; UINT8 bcd_to_decimal(const UINT8 bcd) { return ((bcd>>4)*10)+(bcd&0xf); } UINT8 decimal_to_bcd(const UINT8 dec) { return ((dec/10)<<4)|(dec%10); } UINT32 msf_to_lba_ps(UINT32 msf) { msf = msf_to_lba(msf); return (msf>150)?(msf-150):msf; } UINT32 lba_to_msf_ps(UINT32 lba) { return lba_to_msf_alt(lba+150); } }; // device type definition extern const device_type PSXCD; #endif