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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
CR-511-B CD-ROM drive
CD-ROM drive with a custom MKE/Panasonic interface as used in the
Commodore CDTV and early SoundBlaster cards.
***************************************************************************/
#include "emu.h"
#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_t 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(nullptr),
//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, nullptr);
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;
}
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