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-rw-r--r--src/mame/machine/psxcd.cpp1328
1 files changed, 0 insertions, 1328 deletions
diff --git a/src/mame/machine/psxcd.cpp b/src/mame/machine/psxcd.cpp
deleted file mode 100644
index 6c9580c3bd0..00000000000
--- a/src/mame/machine/psxcd.cpp
+++ /dev/null
@@ -1,1328 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:smf,R. Belmont,pSXAuthor,Carl
-#include "emu.h"
-#include "psxcd.h"
-#include "debugger.h"
-
-#define VERBOSE_LEVEL ( 0 )
-
-static inline void ATTR_PRINTF(3,4) verboselog( device_t& device, int n_level, const char *s_fmt, ... )
-{
- if( VERBOSE_LEVEL >= n_level )
- {
- va_list v;
- char buf[ 32768 ];
- va_start( v, s_fmt );
- vsprintf( buf, s_fmt, v );
- va_end( v );
- device.logerror( "%s: %s", device.machine().describe_context(), buf );
- }
-}
-
-enum cdrom_events
-{
- event_cmd_complete=0,
- event_read_sector,
- event_play_sector,
- event_change_disk
-};
-
-enum intr_status
-{
- intr_nointr=0,
- intr_dataready,
- intr_acknowledge,
- intr_complete,
- intr_dataend,
- intr_diskerror
-};
-
-enum mode_flags
-{
- mode_double_speed=0x80,
- mode_adpcm=0x40,
- mode_size=0x20,
- mode_size2=0x10,
- mode_size_mask=0x30,
- mode_channel=0x08,
- mode_report=0x04,
- mode_autopause=0x02,
- mode_cdda=0x01
-};
-
-enum status_f
-{
- status_playing=0x80,
- status_seeking=0x40,
- status_reading=0x20,
- status_shellopen=0x10,
- status_invalid=0x08,
- status_seekerror=0x04,
- status_standby=0x02,
- status_error=0x01
-};
-
-struct subheader
-{
- uint8_t file, channel, submode, coding;
-};
-
-enum submode_flags
-{
- submode_eof=0x80,
- submode_realtime=0x40,
- submode_form=0x20,
- submode_trigger=0x10,
- submode_data=0x08,
- submode_audio=0x04,
- submode_video=0x02,
- submode_eor=0x01
-};
-
-//**************************************************************************
-// DEVICE DEFINITIONS
-//**************************************************************************
-
-DEFINE_DEVICE_TYPE(PSXCD, psxcd_device, "psx_cd", "PSX CD-ROM")
-
-psxcd_device::psxcd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
- cdrom_image_device(mconfig, PSXCD, tag, owner, clock),
- m_irq_handler(*this),
- m_maincpu(*this, finder_base::DUMMY_TAG),
- m_spu(*this, finder_base::DUMMY_TAG)
-{
- set_interface("psx_cdrom");
-}
-
-
-void psxcd_device::device_start()
-{
- cdrom_image_device::device_start();
- m_irq_handler.resolve_safe();
-
- unsigned int sysclk=m_maincpu->clock()/2;
- start_read_delay=(sysclk/60);
- read_sector_cycles=(sysclk/75);
- preread_delay=(read_sector_cycles>>2)-500;
-
- m_sysclock = sysclk;
-
- res_queue = nullptr;
- rdp = 0;
- status=status_shellopen;
- mode=0;
-
- for (int i = 0; i < MAX_PSXCD_TIMERS; i++)
- {
- m_timers[i] = timer_alloc(i);
- m_timerinuse[i] = false;
- }
-
- save_item(NAME(cmdbuf));
- save_item(NAME(mode));
- save_item(NAME(secbuf));
- save_item(NAME(filter_file));
- save_item(NAME(filter_channel));
- save_item(NAME(lastsechdr));
- save_item(NAME(status));
- save_item(NAME(rdp));
- save_item(NAME(m_cursec));
- save_item(NAME(sectail));
- save_item(NAME(m_transcurr));
- save_item(NAME(m_transbuf));
- save_item(NAME(loc.w));
- save_item(NAME(curpos.w));
- save_item(NAME(open));
- save_item(NAME(m_mute));
- save_item(NAME(m_dmaload));
- save_item(NAME(next_read_event));
- save_item(NAME(next_sector_t));
- save_item(NAME(autopause_sector));
- save_item(NAME(m_param_count));
-}
-
-void psxcd_device::device_stop()
-{
- for (int i = 0; i < MAX_PSXCD_TIMERS; i++)
- {
- if(m_timerinuse[i] && m_timers[i]->ptr())
- delete (command_result *)m_timers[i]->ptr();
- }
- while(res_queue)
- {
- command_result *res = res_queue->next;
- delete res_queue;
- res_queue = res;
- }
-}
-
-void psxcd_device::device_reset()
-{
- next_read_event = -1;
- stop_read();
-
- for (int i = 0; i < MAX_PSXCD_TIMERS; i++)
- {
- if(m_timerinuse[i] && m_timers[i]->ptr())
- delete (command_result *)m_timers[i]->ptr();
- m_timers[i]->adjust(attotime::never, 0, attotime::never);
- m_timerinuse[i] = false;
- }
- open = true;
- if(m_cdrom_handle)
- add_system_event(event_change_disk, m_sysclock, nullptr);
-
- while(res_queue)
- {
- command_result *res = res_queue->next;
- delete res_queue;
- res_queue = res;
- }
-
- m_param_count = 0;
- m_regs.sr = 0x18;
- m_regs.ir = 0;
- m_regs.imr = 0x1f;
- sectail = 0;
- m_cursec = 0;
- m_mute = false;
- m_dmaload = false;
- m_int1 = nullptr;
- curpos.w = 0;
-}
-
-image_init_result psxcd_device::call_load()
-{
- image_init_result ret = cdrom_image_device::call_load();
- open = true;
- if(ret == image_init_result::PASS)
- add_system_event(event_change_disk, m_sysclock, nullptr); // 1 sec to spin up the disk
- return ret;
-}
-
-void psxcd_device::call_unload()
-{
- stop_read();
- cdrom_image_device::call_unload();
- open = true;
- status = status_shellopen;
- send_result(intr_diskerror);
-}
-
-uint8_t psxcd_device::read(offs_t offset)
-{
- uint8_t ret = 0;
- switch (offset & 3)
- {
- /*
- x--- ---- command/parameter busy flag
- -x-- ---- data fifo full (active low)
- --x- ---- response fifo empty (active low)
- ---x ---- parameter fifo full (active low)
- ---- x--- parameter fifo empty (active high)
- ---- --xx cmd mode
- */
- case 0:
- ret = m_regs.sr;
- break;
-
- case 1:
- if ((res_queue) && (rdp < res_queue->sz))
- {
- ret = res_queue->data[rdp++];
- if(rdp == res_queue->sz)
- m_regs.sr &= ~0x20;
- else
- m_regs.sr |= 0x20;
- }
- else
- ret = 0;
- break;
-
- case 2:
- if(!m_dmaload)
- ret = 0;
- else
- {
- ret = m_transbuf[m_transcurr++];
- if(m_transcurr >= raw_sector_size)
- {
- m_dmaload = false;
- m_regs.sr &= ~0x40;
- }
- }
- break;
-
- case 3:
- if(m_regs.sr & 1)
- ret = m_regs.ir | 0xe0;
- else
- ret = m_regs.imr | 0xe0;
- break;
- }
-
- verboselog(*this, 2, "psxcd: read byte %08x = %02x\n",offset,ret);
-
- return ret;
-}
-
-void psxcd_device::write(offs_t offset, uint8_t data)
-{
- verboselog(*this, 2, "psxcd: write byte %08x = %02x\n",offset,data);
-
- switch ((offset & 3) | ((m_regs.sr & 3) << 4))
- {
- case 0x00:
- case 0x10:
- case 0x20:
- case 0x30:
- m_regs.sr = (m_regs.sr & ~3) | (data & 3);
- break;
-
- case 0x01:
- write_command(data);
- break;
-
- case 0x11:
- case 0x21:
- break;
-
- case 0x31:
- m_regs.vol.rr = data;
- break;
-
- case 0x02:
- cmdbuf[m_param_count] = data;
- m_param_count++;
- break;
-
- case 0x12:
- m_regs.imr = data & 0x1f;
- break;
-
- case 0x22:
- m_regs.vol.ll = data;
- break;
-
- case 0x32:
- m_regs.vol.rl = data;
- break;
- /*
- x--- ---- unknown
- -x-- ---- Reset parameter FIFO
- --x- ---- unknown (used on transitions, so it certainly resets something)
- ---x ---- Command start
- ---- -xxx Response received
- */
- case 0x03:
- if((data & 0x80) && !m_dmaload)
- {
- m_dmaload = true;
- memcpy(m_transbuf, secbuf[m_cursec], raw_sector_size);
- m_regs.sr |= 0x40;
-
- m_cursec++;
- m_cursec %= sector_buffer_size;
-
- switch(mode & mode_size_mask)
- {
- case 0x00:
- default:
- m_transcurr = 24;
- break;
- case 0x10:
- m_transcurr = 24;
- break;
- case 0x20:
- m_transcurr = 12;
- break;
- }
-#if (VERBOSE_LEVEL > 0)
- char str[1024];
- for (int i=0; i<12; i++)
- sprintf(&str[i*4], "%02x ", m_transbuf[i+12]);
- verboselog(*this, 1, "psxcd: request data=%s\n",str);
-#endif
- }
- else if(!(data & 0x80))
- {
- m_dmaload = false;
- m_regs.sr &= ~0x40;
- }
- break;
-
- case 0x13:
- if(data & 0x1f)
- {
- m_regs.ir &= ~(data & 0x1f);
-
- if(res_queue && !m_regs.ir)
- {
- command_result *res = res_queue;
- if(res == m_int1)
- m_int1 = nullptr;
-
- res_queue = res->next;
- delete res;
- m_regs.sr &= ~0x20;
- rdp = 0;
- if(res_queue)
- {
- m_regs.sr |= 0x20;
- m_regs.ir = res_queue->res;
- }
- verboselog(*this, 1, "psxcd: nextres\n");
- }
- }
- if(data & 0x40)
- m_param_count = 0;
- break;
-
- case 0x23:
- m_regs.vol.lr = data;
- break;
-
- case 0x33:
- break;
- }
-}
-
-const psxcd_device::cdcmd psxcd_device::cmd_table[]=
-{
- &psxcd_device::cdcmd_sync,
- &psxcd_device::cdcmd_nop,
- &psxcd_device::cdcmd_setloc,
- &psxcd_device::cdcmd_play,
- &psxcd_device::cdcmd_forward,
- &psxcd_device::cdcmd_backward,
- &psxcd_device::cdcmd_readn,
- &psxcd_device::cdcmd_standby,
- &psxcd_device::cdcmd_stop,
- &psxcd_device::cdcmd_pause,
- &psxcd_device::cdcmd_init,
- &psxcd_device::cdcmd_mute,
- &psxcd_device::cdcmd_demute,
- &psxcd_device::cdcmd_setfilter,
- &psxcd_device::cdcmd_setmode,
- &psxcd_device::cdcmd_getparam,
- &psxcd_device::cdcmd_getlocl,
- &psxcd_device::cdcmd_getlocp,
- &psxcd_device::cdcmd_unknown12,
- &psxcd_device::cdcmd_gettn,
- &psxcd_device::cdcmd_gettd,
- &psxcd_device::cdcmd_seekl,
- &psxcd_device::cdcmd_seekp,
- &psxcd_device::cdcmd_illegal17,
- &psxcd_device::cdcmd_illegal18,
- &psxcd_device::cdcmd_test,
- &psxcd_device::cdcmd_id,
- &psxcd_device::cdcmd_reads,
- &psxcd_device::cdcmd_reset,
- &psxcd_device::cdcmd_illegal1d,
- &psxcd_device::cdcmd_readtoc
-};
-
-void psxcd_device::write_command(uint8_t byte)
-{
- if(byte > 31)
- illegalcmd(byte);
- else
- (this->*cmd_table[byte])();
- m_param_count = 0;
-}
-
-void psxcd_device::cdcmd_sync()
-{
- verboselog(*this, 1, "psxcd: sync\n");
-
- stop_read();
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_nop()
-{
- verboselog(*this, 1, "psxcd: nop\n");
-
- if (!open)
- status &= ~status_shellopen;
-
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_setloc()
-{
- verboselog(*this, 1, "psxcd: setloc %08x:%08x:%08x\n", cmdbuf[0], cmdbuf[1], cmdbuf[2]);
-
- stop_read();
-
-
- CDPOS l;
- l.b[M]=bcd_to_decimal(cmdbuf[0]);
- l.b[S]=bcd_to_decimal(cmdbuf[1]);
- l.b[F]=bcd_to_decimal(cmdbuf[2]);
-
- if ((l.b[M]>0) || (l.b[S]>=2))
- loc.w=l.w;
- else
- verboselog(*this, 0, "psxcd: setloc out of range: %02d:%02d:%02d\n",l.b[M],l.b[S],l.b[F]);
-
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_play()
-{
- if(cmdbuf[0] && m_param_count)
- loc.w = lba_to_msf_ps(cdrom_get_track_start(m_cdrom_handle, bcd_to_decimal(cmdbuf[0]) - 1));
-
- curpos.w = loc.w;
- if (!curpos.w)
- curpos.b[S] = 2;
-
- verboselog(*this, 1, "psxcd: play %02x %02x %02x => %d\n", decimal_to_bcd(loc.b[M]), decimal_to_bcd(loc.b[S]), decimal_to_bcd(loc.b[F]), msf_to_lba_ps(loc.w));
-
- stop_read();
- start_play();
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_forward()
-{
- verboselog(*this, 1, "psxcd: forward\n");
-}
-
-void psxcd_device::cdcmd_backward()
-{
- verboselog(*this, 1, "psxcd: backward\n");
-}
-
-void psxcd_device::cdcmd_readn()
-{
- if(!open)
- {
- verboselog(*this, 1, "psxcd: readn\n");
-
- curpos.w=loc.w;
-
- stop_read();
- start_read();
- } else
- {
- send_result(intr_diskerror, nullptr, 0, 0x80);
- }
-}
-
-void psxcd_device::cdcmd_standby()
-{
- verboselog(*this, 1, "psxcd: standby\n");
-
- stop_read();
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_stop()
-{
- verboselog(*this, 1, "psxcd: stop\n");
-
- stop_read();
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_pause()
-{
- verboselog(*this, 1, "psxcd: pause\n");
-
- stop_read();
-
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_init()
-{
- verboselog(*this, 1, "psxcd: init\n");
-
- stop_read();
- mode=0;
- m_regs.sr |= 0x10;
-
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_mute()
-{
- verboselog(*this, 1, "psxcd: mute\n");
-
- m_mute = true;
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_demute()
-{
- verboselog(*this, 1, "psxcd: demute\n");
-
- m_mute = false;
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_setfilter()
-{
- verboselog(*this, 1, "psxcd: setfilter %08x,%08x\n",cmdbuf[0],cmdbuf[1]);
-
- filter_file=cmdbuf[0];
- filter_channel=cmdbuf[1];
-
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_setmode()
-{
- verboselog(*this, 1, "psxcd: setmode %08x\n",cmdbuf[0]);
-
- mode=cmdbuf[0];
- send_result(intr_complete);
-}
-
-void psxcd_device::cdcmd_getparam()
-{
- unsigned char data[6]=
- {
- status,
- mode,
- filter_file,
- filter_channel,
- 0,
- 0
- };
-
- verboselog(*this, 1, "psxcd: getparam [%02x %02x %02x %02x %02x %02x]\n",
- data[0], data[1], data[2], data[3], data[4], data[5]);
-
- send_result(intr_complete,data,6);
-}
-
-uint32_t psxcd_device::sub_loc(CDPOS src1, CDPOS src2)
-{
- CDPOS dst;
- int f=src1.b[F]-src2.b[F],
- s=src1.b[S]-src2.b[S],
- m=src1.b[M]-src2.b[M];
- while (f<0) { s--; f+=75; }
- while (s<0) { m--; s+=60; }
-
- if (m<0)
- m=s=f=0;
-
- dst.b[M]=m;
- dst.b[S]=s;
- dst.b[F]=f;
-
- return dst.w;
-}
-
-void psxcd_device::cdcmd_getlocl()
-{
- verboselog(*this, 1, "psxcd: getlocl [%02x %02x %02x %02x %02x %02x %02x %02x]\n",
- lastsechdr[0], lastsechdr[1], lastsechdr[2], lastsechdr[3],
- lastsechdr[4], lastsechdr[5], lastsechdr[6], lastsechdr[7]);
-
- send_result(intr_complete,lastsechdr,8);
-}
-
-void psxcd_device::cdcmd_getlocp()
-{
- CDPOS tloc, start;
- uint8_t track = cdrom_get_track(m_cdrom_handle, msf_to_lba_ps(loc.w)) + 1;
- start.w = (track == 1) ? 0x000200 : lba_to_msf_ps(cdrom_get_track_start(m_cdrom_handle, track - 1));
- tloc.w = sub_loc(loc, start);
-
- unsigned char data[8]=
- {
- decimal_to_bcd(track), // track
- 0x01, // index
- decimal_to_bcd(tloc.b[M]), // min
- decimal_to_bcd(tloc.b[S]), // sec
- decimal_to_bcd(tloc.b[F]), // frame
- decimal_to_bcd(loc.b[M]), // amin
- decimal_to_bcd(loc.b[S]), // asec
- decimal_to_bcd(loc.b[F]) // aframe
- };
-
- verboselog(*this, 1, "psxcd: getlocp [%02x %02x %02x %02x %02x %02x %02x %02x]\n",
- data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
-
- send_result(intr_complete,data,8);
-}
-
-void psxcd_device::cdcmd_gettn()
-{
- verboselog(*this, 1, "psxcd: gettn\n");
-
-
- if(!open)
- {
- unsigned char data[3]=
- {
- status,
- decimal_to_bcd(1),
- decimal_to_bcd(cdrom_get_last_track(m_cdrom_handle))
- };
-
- send_result(intr_complete,data,3);
- }
- else
- {
- send_result(intr_diskerror, nullptr, 0, 0x80);
- }
-}
-
-void psxcd_device::cdcmd_gettd()
-{
- uint8_t track = bcd_to_decimal(cmdbuf[0]);
- uint8_t last = cdrom_get_last_track(m_cdrom_handle);
- if(track <= last)
- {
- CDPOS trkstart;
- if(!track) // length of disk
- trkstart.w = lba_to_msf_ps(cdrom_get_track_start(m_cdrom_handle, 0xaa));
- else
- trkstart.w = lba_to_msf_ps(cdrom_get_track_start(m_cdrom_handle, track - 1));
-
- unsigned char data[3]=
- {
- status,
- decimal_to_bcd(trkstart.b[M]),
- decimal_to_bcd(trkstart.b[S])
- };
-
- verboselog(*this, 1, "psxcd: gettd %02x [%02x %02x %02x]\n", cmdbuf[0], data[0], data[1], data[2]);
-
- send_result(intr_acknowledge,data,3);
- }
- else
- {
- send_result(intr_diskerror, nullptr, 0, 0x80);
- }
-}
-
-void psxcd_device::cdcmd_seekl()
-{
- verboselog(*this, 1, "psxcd: seekl [%02d:%02d:%02d]\n", loc.b[M], loc.b[S], loc.b[F]);
-
- curpos.w=loc.w;
-
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_seekp()
-{
- verboselog(*this, 1, "psxcd: seekp\n");
-
- curpos.w=loc.w;
-
- send_result(intr_acknowledge);
-}
-
-void psxcd_device::cdcmd_test()
-{
- verboselog(*this, 1, "psxcd: test %02x\n", cmdbuf[0]);
-
- switch(cmdbuf[0])
- {
- case 0x20:
- {
- static uint8_t data[4]=
- {
- 0x95,
- 0x07,
- 0x06,
- 0xff
- };
-
- send_result(intr_complete,data,4);
- break;
- }
-
- default:
- verboselog(*this, 0, "psxcd: unimplemented test cmd %02x\n", cmdbuf[0]);
- cmd_complete(prepare_result(intr_diskerror, nullptr, 0, 0x10));
- break;
- }
-}
-
-void psxcd_device::cdcmd_id()
-{
- verboselog(*this, 1, "psxcd: id\n");
-
- if (!open)
- {
- uint8_t cdid[8];
- int irq;
- memset(cdid, '\0', 8);
-
- send_result(intr_complete);
- if(cdrom_get_track_type(m_cdrom_handle, 0) == CD_TRACK_AUDIO)
- {
- irq = intr_diskerror;
- cdid[0] = status | status_invalid;
- cdid[1] = 0x90;
- }
- else
- {
- irq = intr_acknowledge;
- cdid[0] = status;
- cdid[4] = 'S';
- cdid[5] = 'C';
- cdid[6] = 'E';
- cdid[7] = 'A';
- }
- send_result(irq,cdid,8,default_irq_delay*3);
- }
- else
- {
- send_result(intr_diskerror, nullptr, 0, 0x80);
- }
-}
-
-void psxcd_device::cdcmd_reads()
-{
- if(!open)
- {
- verboselog(*this, 1, "psxcd: reads\n");
-
- curpos.w=loc.w;
-
- stop_read();
- start_read();
- } else
- {
- send_result(intr_diskerror, nullptr, 0, 0x80);
- }
-}
-
-void psxcd_device::cdcmd_reset()
-{
- verboselog(*this, 1, "psxcd: reset\n");
-}
-
-void psxcd_device::cdcmd_readtoc()
-{
- verboselog(*this, 1, "psxcd: readtoc\n");
-
- send_result(intr_complete);
- send_result(intr_acknowledge, nullptr, 0, default_irq_delay*3); // ?
-}
-
-void psxcd_device::cdcmd_unknown12()
-{
- verboselog(*this, 1, "psxcd: unknown 12\n");
- // set session? readt?
- if(cmdbuf[0] == 1)
- send_result(intr_complete);
- else
- send_result(intr_diskerror, nullptr, 0, 0x40);
-}
-
-void psxcd_device::cdcmd_illegal17()
-{
- illegalcmd(0x17); // set clock?
-}
-
-void psxcd_device::cdcmd_illegal18()
-{
- illegalcmd(0x18); // get clock?
-}
-
-void psxcd_device::cdcmd_illegal1d()
-{
- illegalcmd(0x1d); // read q subchannel
-}
-
-void psxcd_device::illegalcmd(uint8_t cmd)
-{
- verboselog(*this, 0, "psxcd: unimplemented cd command %02x\n", cmd);
-
- send_result(intr_diskerror, nullptr, 0, 0x40);
-}
-
-void psxcd_device::cmd_complete(command_result *res)
-{
- command_result *rf;
-
- verboselog(*this, 1, "psxcd: irq [%d]\n", res->res);
-
- if (res_queue)
- {
- for (rf=res_queue; rf->next; rf=rf->next);
- rf->next=res;
- }
- else
- {
- res_queue = res;
- m_regs.ir = res_queue->res;
- if(m_regs.ir & m_regs.imr)
- m_irq_handler(1);
- m_regs.sr |= 0x20;
- }
- res->next = nullptr;
-}
-
-psxcd_device::command_result *psxcd_device::prepare_result(uint8_t res, uint8_t *data, int sz, uint8_t errcode)
-{
- auto cr=new command_result;
-
- cr->res=res;
- if (sz)
- {
- assert(sz<sizeof(cr->data));
- memcpy(cr->data,data,sz);
- cr->sz=sz;
- } else
- {
- if((res == intr_diskerror) && errcode)
- {
- cr->data[0] = status | status_error;
- cr->data[1] = errcode;
- cr->sz = 2;
- }
- else
- {
- cr->data[0]=status;
- cr->sz=1;
- }
- }
- status &= ~status_error;
-
- return cr;
-}
-
-void psxcd_device::send_result(uint8_t res, uint8_t *data, int sz, int delay, uint8_t errcode)
-{
- // Avoid returning results after sector read results -
- // delay the sector read slightly if necessary
-
- uint64_t systime = m_maincpu->total_cycles();
- if ((next_read_event != -1) && ((systime+delay)>(next_sector_t)))
- {
- uint32_t hz = m_sysclock / (delay + 2000);
- m_timers[next_read_event]->adjust(attotime::from_hz(hz), 0, attotime::never);
- }
-
- add_system_event(event_cmd_complete, delay, prepare_result(res, data, sz, errcode));
-}
-
-void psxcd_device::start_dma(uint8_t *mainram, uint32_t size)
-{
- uint32_t sector_size;
- verboselog(*this, 1, "psxcd: start dma %d bytes at %d\n", size, m_transcurr);
-
- if(!m_dmaload)
- return;
-
- switch(mode & mode_size_mask)
- {
- case 0x00:
- default:
- sector_size = 2048 + 24;
- break;
- case 0x10:
- sector_size = 2328 + 12;
- break;
- case 0x20:
- sector_size = 2340 + 12;
- break;
- }
-
- if(size > (sector_size - m_transcurr))
- size = (sector_size - m_transcurr);
-
- memcpy(mainram, &m_transbuf[m_transcurr], size);
- m_transcurr += size;
-
- if(sector_size <= m_transcurr)
- {
- m_dmaload = false;
- m_regs.sr &= ~0x40;
- }
-}
-
-void psxcd_device::read_sector()
-{
- next_read_event=-1;
-
- if (status & status_reading)
- {
- bool isend = false;
- uint32_t sector = msf_to_lba_ps(curpos.w);
- uint8_t *buf = secbuf[sectail];
- if (cdrom_read_data(m_cdrom_handle, sector, buf, CD_TRACK_RAW_DONTCARE))
- {
- subheader *sub=(subheader *)(buf+16);
- memcpy(lastsechdr, buf+12, 8);
-
- verboselog(*this, 2, "psxcd: subheader file=%02x chan=%02x submode=%02x coding=%02x [%02x%02x%02x%02x]\n",
- sub->file, sub->channel, sub->submode, sub->coding, buf[0xc], buf[0xd], buf[0xe], buf[0xf]);
-
- if ((mode & mode_adpcm) && (sub->submode & submode_audio))
- {
- if ((sub->submode & submode_eof) && (mode & mode_autopause))
- {
- isend=true;
- //printf("end of file\n");
- }
- if((!(mode & mode_channel) ||
- ((sub->file == filter_file) && (sub->channel == filter_channel))) && !m_mute)
- m_spu->play_xa(0,buf+16);
- }
- else
- {
- if(!m_int1)
- m_cursec = sectail;
-
- m_int1 = prepare_result(intr_dataready);
- cmd_complete(m_int1);
- sectail++;
- sectail %= sector_buffer_size;
- }
-
- curpos.b[F]++;
- if (curpos.b[F]==75)
- {
- curpos.b[F]=0;
- curpos.b[S]++;
- if (curpos.b[S]==60)
- {
- curpos.b[S]=0;
- curpos.b[M]++;
- }
- }
-
- loc.w=curpos.w;
- }
- else
- isend = true;
-
- if (! isend)
- {
- unsigned int cyc=read_sector_cycles;
- if (mode&mode_double_speed) cyc>>=1;
-
- next_sector_t+=cyc;
-
- next_read_event = add_system_event(event_read_sector, cyc, nullptr);
- } else
- {
- verboselog(*this, 1, "psxcd: autopause xa\n");
-
- cmd_complete(prepare_result(intr_dataend));
- stop_read();
- }
- }
-}
-
-void psxcd_device::play_sector()
-{
- next_read_event=-1;
-
- if (status&status_playing)
- {
- uint32_t sector = msf_to_lba_ps(curpos.w);
-
- if(cdrom_read_data(m_cdrom_handle, sector, secbuf[sectail], CD_TRACK_AUDIO))
- {
- if(!m_mute)
- m_spu->play_cdda(0, secbuf[sectail]);
- }
- else
- {
- if(!cdrom_read_data(m_cdrom_handle, sector, secbuf[sectail], CD_TRACK_RAW_DONTCARE))
- {
- stop_read(); // assume we've reached the end
- cmd_complete(prepare_result(intr_dataend));
- return;
- }
- }
-
- curpos.b[F]++;
- if (curpos.b[F]==75)
- {
- curpos.b[F]=0;
- curpos.b[S]++;
- if (curpos.b[S]==60)
- {
- curpos.b[S]=0;
- curpos.b[M]++;
- }
- }
-
- loc.w=curpos.w;
- sector++;
- sectail++;
- sectail %= sector_buffer_size;
-
- if (mode&mode_autopause)
- {
- if (sector>=autopause_sector)
- {
- verboselog(*this, 1, "psxcd: autopause cdda\n");
-
- stop_read();
- cmd_complete(prepare_result(intr_dataend));
- return;
- }
- }
-
- if ((mode&mode_report) && !(sector & 15)) // slow the int rate
- {
- auto res=new command_result;
- uint8_t track = cdrom_get_track(m_cdrom_handle, sector) + 1;
- res->res=intr_dataready;
-
- res->data[0]=status;
- res->data[1]=decimal_to_bcd(track);
- res->data[2]=1;
- if(sector & 0x10)
- {
- CDPOS tloc, start;
- start.w = (track == 1) ? 0x000200 : lba_to_msf_ps(cdrom_get_track_start(m_cdrom_handle, track - 1));
- tloc.w = sub_loc(loc, start);
- res->data[3]=decimal_to_bcd(tloc.b[M]);
- res->data[4]=decimal_to_bcd(tloc.b[S]) | 0x80;
- res->data[5]=decimal_to_bcd(tloc.b[F]);
- }
- else
- {
- res->data[3]=decimal_to_bcd(loc.b[M]);
- res->data[4]=decimal_to_bcd(loc.b[S]);
- res->data[5]=decimal_to_bcd(loc.b[F]);
- }
-
- res->sz=8;
-
- cmd_complete(res);
- }
-
- unsigned int cyc=read_sector_cycles;
-
- next_sector_t+=cyc>>1;
-
- next_read_event = add_system_event(event_play_sector, next_sector_t - m_maincpu->total_cycles(), nullptr);
- }
-}
-
-void psxcd_device::start_read()
-{
- uint32_t sector = msf_to_lba_ps(curpos.w);
-
- assert((status&(status_reading|status_playing))==0);
-
- if(!(mode & mode_cdda) && (cdrom_get_track_type(m_cdrom_handle, cdrom_get_track(m_cdrom_handle, sector + 150)) == CD_TRACK_AUDIO))
- {
- stop_read();
- cmd_complete(prepare_result(intr_diskerror, nullptr, 0, 0x40));
- return;
- }
- send_result(intr_complete);
- status |= status_reading;
-
- m_cursec=sectail=0;
-
- unsigned int cyc=read_sector_cycles;
- if (mode&mode_double_speed) cyc>>=1;
-
- int64_t systime=m_maincpu->total_cycles();
-
- systime+=start_read_delay;
-
- next_sector_t=systime+cyc;
- next_read_event = add_system_event(event_read_sector, start_read_delay+preread_delay, nullptr);
-}
-
-void psxcd_device::start_play()
-{
- uint8_t track = cdrom_get_track(m_cdrom_handle, msf_to_lba_ps(curpos.w) + 150);
-
- if(cdrom_get_track_type(m_cdrom_handle, track) != CD_TRACK_AUDIO)
- verboselog(*this, 0, "psxcd: playing data track\n");
-
- status|=status_playing;
-
- m_cursec=sectail=0;
-
- if (mode&mode_autopause)
- {
- auto toc = cdrom_get_toc(m_cdrom_handle);
- autopause_sector = cdrom_get_track_start(m_cdrom_handle, track) + toc->tracks[track].logframes;
-// printf("pos=%d auto=%d\n",pos,autopause_sector);
- }
-
- unsigned int cyc=read_sector_cycles;
-
- next_sector_t=m_maincpu->total_cycles()+cyc;
-
- next_sector_t+=cyc>>1;
-
- next_read_event = add_system_event(event_play_sector, next_sector_t - m_maincpu->total_cycles(), nullptr);
-}
-
-void psxcd_device::stop_read()
-{
- if (status & (status_reading|status_playing))
- verboselog(*this, 1, "psxcd: stop read\n");
-
- status&=~(status_reading|status_playing);
-
- if (next_read_event != -1)
- {
- m_timers[next_read_event]->adjust(attotime::never, 0, attotime::never);
- m_timerinuse[next_read_event] = false;
- next_read_event = -1;
- }
-
- uint32_t sector=msf_to_lba_ps(curpos.w);
- m_spu->flush_xa(sector);
- m_spu->flush_cdda(sector);
-}
-
-void psxcd_device::device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr)
-{
- if (!m_timerinuse[tid])
- {
- verboselog(*this, 0, "psxcd: timer fired for free event\n");
- return;
- }
-
- m_timerinuse[tid] = false;
- switch (param)
- {
- case event_cmd_complete:
- {
- verboselog(*this, 1, "psxcd: event cmd complete\n");
-
- cmd_complete((command_result *)ptr);
- break;
- }
-
- case event_read_sector:
- read_sector();
- break;
-
- case event_play_sector:
- play_sector();
- break;
-
- case event_change_disk:
- open = false;
- status |= status_standby;
- break;
- }
-}
-
-int psxcd_device::add_system_event(int type, uint64_t t, command_result *ptr)
-{
- // t is in maincpu clock cycles
- uint32_t hz = m_sysclock / t;
- for(int i = 0; i < MAX_PSXCD_TIMERS; i++)
- {
- if(!m_timerinuse[i])
- {
- m_timers[i]->adjust(attotime::from_hz(hz), type, attotime::never);
- m_timers[i]->set_ptr(ptr);
- m_timerinuse[i] = true;
- return i;
- }
- }
- fatalerror("psxcd: out of timers\n");
-}
-
-/*
- * TODO:
- * Declare the MCU (Motorola 68HC05 [?] at 4MHz [?]) and hookup
- * these ROM images so that we actually emulate the PSX CDROM unit
- *
- * More technical info is available at these links:
- * http://www.psxdev.net/forum/viewtopic.php?f=60&t=573
- * http://www.psxdev.net/forum/viewtopic.php?f=70&t=557
- *
- */
-ROM_START( psxcd )
- ROM_REGION( 0x10000, "cdrom_mcu", 0 )
-
- /* Retail PlayStation CD-ROM Firmware:
- *
- * Still missing:
- * SCPH-1001, 3000, 3500, 5003, 5502, 5503, 7000W, 7001, 7002, 7003, 7503, 9003, 100, 101, 102 and 103.
- */
-
- ROM_SYSTEM_BIOS( 0, "scph-1000-later", "SCPH-1000 NTSC:J (Later Ver.) [424660]" )
- ROMX_LOAD( "424660.bin", 0x0000, 0x4200, CRC(f82a2a46) SHA1(095434948d4c71cdfaa069e91053443887a6d139), ROM_BIOS(0) )
-
- ROM_SYSTEM_BIOS( 1, "scph-1000-early", "SCPH-1000 NTSC:J (Early Ver.) [424666]" )
- ROMX_LOAD( "424666.bin", 0x0000, 0x4200, CRC(60bc954e) SHA1(80674353daf95ffb4bd15cc4bb8cfa713370dd45), ROM_BIOS(1) )
-
- ROM_SYSTEM_BIOS( 2, "scph-1002-early", "SCPH-1002 PAL (Early PU-8) [424684]" )
- ROMX_LOAD( "424684.bin", 0x0000, 0x4200, CRC(84d46b2a) SHA1(9b06b1d407b784095ddbd45aeabafd689d2ee347), ROM_BIOS(2) )
-
- /* Chip markings: C 1021 / SC430916PB / G63C 185 / JSAB9624F */
- ROM_SYSTEM_BIOS( 3, "scph-5000", "SCPH-5000 NTSC:J [SC430916]" )
- ROMX_LOAD( "sc430916.s19", 0x0000, 0xb195, CRC(487c8a40) SHA1(0ae8348fb43ab80845b0166494edc3e1565a3ef7), ROM_BIOS(3) )
-
- /* Chip markings: C 1030 / SC430925PB / G63C 185 / JSBK9708C
- Board Type: PU-18 / 1-664-537-11 */
- ROM_SYSTEM_BIOS( 4, "scph-5500", "SCPH-5500 NTSC:J [SC430925]" )
- ROMX_LOAD( "sc430925.s19", 0x0000, 0xb195, CRC(c09aa0c2) SHA1(b9ad66cc8ea4d6e2eb2709ffb77c9647f679097a), ROM_BIOS(4) )
-
- /* Chip markings: C 2030 / SC430930PB / G63C 185 / SSJZ9748A
- Board Type: PU-18 / 1-664-537-62 */
- ROM_SYSTEM_BIOS( 5, "scph-5501", "SCPH-5501 NTSC:U/C [SC430930]" )
- ROMX_LOAD( "sc430930.s19", 0x0000, 0xb195, CRC(587b84c2) SHA1(556c3adc37e4eb64fd463c54f7a310c483e0e835), ROM_BIOS(5) )
-
- /* ROM dump is the same as SCPH-5552 */
- ROM_SYSTEM_BIOS( 6, "scph-5502", "SCPH-5502 PAL [SC430929]" )
- ROMX_LOAD( "sc430929.bin", 0x0000, 0x4200, CRC(ba87a3e0) SHA1(f23458d13a518616a8592b8ddd668c052bc9be5a), ROM_BIOS(6) )
-
- ROM_SYSTEM_BIOS( 7, "scph-5903", "SCPH-5903 NTSC:J [SC430924PB]" )
- ROMX_LOAD( "sc430924.s19", 0x0000, 0xb195, CRC(dbe694b2) SHA1(ac72cb616b1449fe29e52faf6aad389118852d73), ROM_BIOS(7) )
-
- /* Chip markings: C 1040 / SC430934PB / G63C 185 / SSDG9745D */
- ROM_SYSTEM_BIOS( 8, "scph-7000", "SCPH-7000 NTSC:J [SC430934]" )
- ROMX_LOAD( "sc430934.s19", 0x0000, 0xb195, CRC(6443740c) SHA1(d9734c7135c75dbe7733079a2d4244a28c9e966e), ROM_BIOS(8) )
-
- /* Chip markings: C 1050 / SC430938PB / G63C 185 / SSAM9850C */
- ROM_SYSTEM_BIOS( 9, "scph-7500", "SCPH-7500 NTSC:J [SC430938]" )
- ROMX_LOAD( "sc430938.s19", 0x0000, 0xb195, CRC(9744977a) SHA1(f017d34a98a8a023f6752ba9ed749bb9e2b836d5), ROM_BIOS(9) )
-
- /* Chip markings: C 2050 / SC430940PB / G63C 185 / SSDL9838A */
- ROM_SYSTEM_BIOS( 10, "scph-7501", "SCPH-7501 NTSC:U/C [SC430940]" )
- ROMX_LOAD( "sc430940.s19", 0x0000, 0xb195, CRC(fd1c6ee7) SHA1(e72b5093a3e25de1548be7668179ff3e001e3ec5), ROM_BIOS(10) )
-
- ROM_SYSTEM_BIOS( 11, "scph-7502", "SCPH-7502 PAL [SC430939]" )
- ROMX_LOAD( "sc430939.bin", 0x0000, 0x4200, CRC(9eafb045) SHA1(25d98454e567e064c06f840d57f763fb7c8b7219), ROM_BIOS(11) )
-
- ROM_SYSTEM_BIOS( 12, "scph-9000", "SCPH-9000 NTSC:J [SC430942]" )
- ROMX_LOAD( "sc430942.bin", 0x0000, 0x4200, NO_DUMP, ROM_BIOS(12) )
-
- /* Chip markings: C 2060 / SC430944PB / G63C 185 / SSBR9924C */
- ROM_SYSTEM_BIOS( 13, "scph-9001", "SCPH-9001 NTSC:U/C [SC430944]" )
- ROMX_LOAD( "sc430944.s19", 0x0000, 0xb195, CRC(24011dfd) SHA1(db72ba02466942d1a1a07c4d855edd18f84de92e), ROM_BIOS(13) )
-
- ROM_SYSTEM_BIOS( 14, "scph-9002", "SCPH-9002 PAL [SC430943]" )
- ROMX_LOAD( "sc430943.bin", 0x0000, 0x4200, CRC(2669a1a7) SHA1(62999e7f8429f381e19d44d2399b6017959f4f13), ROM_BIOS(14) )
-
- /* Development PlayStation CD-ROM Firmware:
- *
- * Still missing:
- * DTL-H1000, 1000H, 1001, 1001H, 1002, 1100, 1101, 1102, 1200, 1201, 2000, 2500, 2700, 3000, 3001 and 3002.
- */
-
- /* Chip markings: D 2021 / SC430920PB / G63C 185 / JSAA9810A
- * Note: Although this is a PAL unit, the ID string in the
- * code is "for US/AEP", so it may be the same for all the
- * debug consoles.
- */
- ROM_SYSTEM_BIOS( 15, "dtl-h1202", "DTL-H1202 PAL [SC430920]" )
- ROMX_LOAD( "sc430920.s19", 0x0000, 0xb195, CRC(8380a5a2) SHA1(6fe45fd6fb96b12a25a45f39b5efd0be5e3f3e86), ROM_BIOS(15) )
-ROM_END
-
-const tiny_rom_entry *psxcd_device::device_rom_region() const
-{
- return ROM_NAME( psxcd );
-}