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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 "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, std::string 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(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;
}