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// license:BSD-3-Clause
// copyright-holders:Vas Crabb
#ifndef MAME_MACHINE_CPS2COMM_H
#define MAME_MACHINE_CPS2COMM_H
#pragma once
#include <memory>
class cps2_comm_device : public device_t
{
public:
cps2_comm_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock);
u16 usart_data_r(offs_t offset, u16 mem_mask);
u16 usart_status_r(offs_t offset, u16 mem_mask);
void usart_data_w(offs_t offset, u16 data, u16 mem_mask);
void usart_control_w(offs_t offset, u16 data, u16 mem_mask);
void route_w(offs_t offset, u16 data, u16 mem_mask);
bool comm_enabled() const { return bool(m_context); }
protected:
enum
{
CTRL_MODE,
CTRL_SYNC1,
CTRL_SYNC2,
CTRL_COMMAND
};
class context;
virtual ioport_constructor device_input_ports() const override ATTR_COLD;
virtual void device_start() override ATTR_COLD;
virtual void device_stop() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
void start_comm() ATTR_COLD;
std::unique_ptr<context> m_context;
required_ioport m_config;
bool m_is_head;
u8 m_usart_control_phase;
u8 m_usart_mode;
u8 m_usart_sync_char[2];
u8 m_usart_status;
u8 m_usart_rx_data;
u8 m_route;
};
DECLARE_DEVICE_TYPE(CAPCOM_CPS2_COMM, cps2_comm_device)
#endif // MAME_MACHINE_CPS2COMM_H
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