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// license:BSD-3-Clause
// copyright-holders:Vas Crabb
/*
Sends raw assert/release signals over a socket. Seriously limits
transfer rates and probably won't work if there's much latency, but it
allows communication between instances using non-standard protocols.
bit 0 = data
bit 1 = set tip
bit 2 = set ring
*/
#ifndef MAME_BUS_TI8X_BITSOCKET_H
#define MAME_BUS_TI8X_BITSOCKET_H
#pragma once
#include "ti8x.h"
#include "imagedev/bitbngr.h"
namespace bus { namespace ti8x {
class bit_socket_device
: public device_t
, public device_ti8x_link_port_interface
{
public:
bit_socket_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock);
protected:
enum
{
TIMER_ID_POLL = 1
};
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual DECLARE_WRITE_LINE_MEMBER(input_tip) override;
virtual DECLARE_WRITE_LINE_MEMBER(input_ring) override;
private:
required_device<bitbanger_device> m_stream;
emu_timer * m_poll_timer;
bool m_tip_in, m_ring_in;
};
} } // namespace bus::ti8x
DECLARE_DEVICE_TYPE_NS(TI8X_BIT_SOCKET, bus::ti8x, bit_socket_device)
#endif // MAME_BUS_TI8X_BITSOCKET_H
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