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// license:BSD-3-Clause
// copyright-holders:Dirk Best
/***************************************************************************
E05A03 Gate Array (used in the Epson LX-800)
***************************************************************************/
#ifndef MAME_MACHINE_E05A03_H
#define MAME_MACHINE_E05A03_H
#pragma once
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
class e05a03_device : public device_t
{
public:
e05a03_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto nlq_lp_wr_callback() { return m_write_nlq_lp.bind(); }
auto pe_lp_wr_callback() { return m_write_pe_lp.bind(); }
auto reso_wr_callback() { return m_write_reso.bind(); }
auto pe_wr_callback() { return m_write_pe.bind(); }
auto data_rd_callback() { return m_read_data.bind(); }
void write(offs_t offset, uint8_t data);
uint8_t read(offs_t offset);
WRITE_LINE_MEMBER( home_w ); /* home position signal */
WRITE_LINE_MEMBER( fire_w ); /* printhead solenoids trigger */
WRITE_LINE_MEMBER( strobe_w );
READ_LINE_MEMBER( busy_r );
WRITE_LINE_MEMBER( resi_w ); /* reset input */
WRITE_LINE_MEMBER( init_w ); /* centronics init */
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
// internal state
/* callbacks */
devcb_write_line m_write_nlq_lp; /* pin 2, nlq lamp output */
devcb_write_line m_write_pe_lp; /* pin 3, paper empty lamp output */
devcb_write_line m_write_reso; /* pin 25, reset output */
devcb_write_line m_write_pe; /* pin 35, centronics pe output */
devcb_read8 m_read_data; /* pin 47-54, centronics data input */
/* 24-bit shift register, port 0x00, 0x01 and 0x02 */
uint32_t m_shift;
/* port 0x03 */
int m_busy_leading;
int m_busy_software;
int m_nlqlp;
int m_cndlp;
#if 0
int m_pe;
int m_pelp;
#endif
/* port 0x04 and 0x05 (9-bit) */
uint16_t m_printhead;
/* port 0x06 (4-bit) */
uint8_t m_pf_motor;
/* port 0x07 (4-bit) */
uint8_t m_cr_motor;
};
DECLARE_DEVICE_TYPE(E05A03, e05a03_device)
#endif // MAME_MACHINE_E05A03_H
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