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-rw-r--r--src/emu/machine/cr511b.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/emu/machine/cr511b.c b/src/emu/machine/cr511b.c
new file mode 100644
index 00000000000..0a4ee90bf80
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+++ b/src/emu/machine/cr511b.c
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+/***************************************************************************
+
+ CR-511-B CD-ROM drive
+
+ license: MAME, GPL-2.0+
+ copyright-holders: Dirk Best
+
+ CD-ROM drive with a custom MKE/Panasonic interface as used in the
+ Commodore CDTV and early SoundBlaster cards.
+
+***************************************************************************/
+
+#include "cr511b.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type CR511B = &device_creator<cr511b_device>;
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( cr511b )
+ MCFG_CDROM_ADD("cdrom")
+ MCFG_CDROM_INTERFACE("cdrom")
+ MCFG_SOUND_ADD("cdda", CDDA, 0)
+ MCFG_SOUND_ROUTE(0, ":lspeaker", 1.0)
+ MCFG_SOUND_ROUTE(1, ":rspeaker", 1.0)
+MACHINE_CONFIG_END
+
+machine_config_constructor cr511b_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( cr511b );
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// cr511b_device - constructor
+//-------------------------------------------------
+
+cr511b_device::cr511b_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, CR511B, "CR-511-B CD-ROM drive", tag, owner, clock, "cr511b", __FILE__),
+ m_cdrom(*this, "cdrom"),
+ m_cdda(*this, "cdda"),
+ m_stch_handler(*this),
+ m_sten_handler(*this),
+ m_drq_handler(*this),
+ m_dten_handler(*this),
+ m_scor_handler(*this),
+ m_xaen_handler(*this),
+ m_frame_timer(NULL),
+ m_motor(false),
+ m_enabled(-1),
+ m_cmd(-1)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void cr511b_device::device_start()
+{
+ // resolve callbacks
+ m_stch_handler.resolve_safe();
+ m_sten_handler.resolve_safe();
+ m_drq_handler.resolve_safe();
+ m_dten_handler.resolve_safe();
+ m_scor_handler.resolve_safe();
+ m_xaen_handler.resolve_safe();
+
+ m_frame_timer = timer_alloc(0, NULL);
+ m_frame_timer->adjust(attotime::never);
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void cr511b_device::device_reset()
+{
+}
+
+//-------------------------------------------------
+// device_timer - device-specific timer events
+//-------------------------------------------------
+
+void cr511b_device::device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr)
+{
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+READ8_MEMBER( cr511b_device::read )
+{
+ return 0xff;
+}
+
+WRITE8_MEMBER ( cr511b_device::write )
+{
+
+}
+
+WRITE_LINE_MEMBER( cr511b_device::enable_w )
+{
+ m_enabled = state;
+}
+
+WRITE_LINE_MEMBER( cr511b_device::cmd_w )
+{
+ m_cmd = state;
+}