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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
EACA Colour Genie Printer Interface EG2012
***************************************************************************/
#include "printer.h"
//**************************************************************************
// CONSTANTS/MACROS
//**************************************************************************
#define VERBOSE 0
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type CGENIE_PRINTER = &device_creator<cgenie_printer_device>;
//-------------------------------------------------
// machine_config_additions - device-specific
// machine configurations
//-------------------------------------------------
static MACHINE_CONFIG_FRAGMENT( cgenie_printer )
MCFG_CENTRONICS_ADD("centronics", centronics_devices, "printer")
MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(cgenie_printer_device, busy_w))
MCFG_CENTRONICS_PERROR_HANDLER(WRITELINE(cgenie_printer_device, perror_w))
MCFG_CENTRONICS_SELECT_HANDLER(WRITELINE(cgenie_printer_device, select_w))
MCFG_CENTRONICS_FAULT_HANDLER(WRITELINE(cgenie_printer_device, fault_w))
MCFG_CENTRONICS_OUTPUT_LATCH_ADD("latch", "centronics")
MACHINE_CONFIG_END
machine_config_constructor cgenie_printer_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( cgenie_printer );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// cgenie_printer_device - constructor
//-------------------------------------------------
cgenie_printer_device::cgenie_printer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, CGENIE_PRINTER, "Printer Interface EG2012", tag, owner, clock, "cgenie_printer", __FILE__),
device_parallel_interface(mconfig, *this),
m_centronics(*this, "centronics"),
m_latch(*this, "latch"),
m_centronics_busy(0),
m_centronics_out_of_paper(0),
m_centronics_unit_sel(1),
m_centronics_ready(1)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void cgenie_printer_device::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void cgenie_printer_device::device_reset()
{
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
WRITE_LINE_MEMBER( cgenie_printer_device::busy_w )
{
m_centronics_busy = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::perror_w )
{
m_centronics_out_of_paper = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::select_w )
{
m_centronics_unit_sel = state;
}
WRITE_LINE_MEMBER( cgenie_printer_device::fault_w )
{
m_centronics_ready = state;
}
void cgenie_printer_device::pa_w(uint8_t data)
{
if (VERBOSE)
logerror("%s: pa_w %02x\n", tag(), data);
m_latch->write(data);
}
uint8_t cgenie_printer_device::pb_r()
{
uint8_t data = 0x0f;
data |= m_centronics_ready << 4;
data |= m_centronics_unit_sel << 5;
data |= m_centronics_out_of_paper << 6;
data |= m_centronics_busy << 7;
return data;
}
void cgenie_printer_device::pb_w(uint8_t data)
{
if (VERBOSE)
logerror("%s: pa_w %02x\n", tag(), data);
m_centronics->write_strobe(BIT(data, 0));
}
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