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// license:BSD-3-Clause
// copyright-holders:Mariusz Wojcieszek
#ifndef MAME_MACHINE_MICROTCH_H
#define MAME_MACHINE_MICROTCH_H
#pragma once
#include "diserial.h"
class microtouch_device :
public device_t,
public device_serial_interface
{
public:
microtouch_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto stx() { return m_out_stx_func.bind(); }
virtual ioport_constructor device_input_ports() const override;
DECLARE_WRITE_LINE_MEMBER(rx) { device_serial_interface::rx_w(state); }
DECLARE_INPUT_CHANGED_MEMBER(touch);
typedef device_delegate<int (int *, int *)> touch_cb;
template <typename... T> void set_touch_callback(T &&... args) { m_out_touch_cb = touch_cb(std::forward<T>(args)...); }
protected:
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual void tra_callback() override;
virtual void tra_complete() override;
virtual void rcv_complete() override;
private:
int check_command( const char* commandtocheck, int command_len, uint8_t* command_data );
void send_format_table_packet(uint8_t flag, int x, int y);
void send_format_decimal_packet(int x, int y);
void send_touch_packet();
enum
{
FORMAT_UNKNOWN,
FORMAT_TABLET,
FORMAT_DECIMAL
};
enum
{
MODE_INACTIVE,
MODE_STREAM,
MODE_POINT
};
uint8_t m_rx_buffer[16];
int m_rx_buffer_ptr;
uint8_t m_tx_buffer[16];
uint8_t m_tx_buffer_num;
uint8_t m_tx_buffer_ptr;
int m_reset_done;
int m_format;
int m_mode;
int m_last_touch_state;
int m_last_x;
int m_last_y;
touch_cb m_out_touch_cb;
devcb_write_line m_out_stx_func;
required_ioport m_touch;
required_ioport m_touchx;
required_ioport m_touchy;
emu_timer* m_timer;
bool m_output_valid;
uint8_t m_output;
};
DECLARE_DEVICE_TYPE(MICROTOUCH, microtouch_device)
#endif // MAME_MACHINE_MICROTCH_H
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