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-rw-r--r--src/devices/bus/ti8x/bitsocket.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/devices/bus/ti8x/bitsocket.h b/src/devices/bus/ti8x/bitsocket.h
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index 00000000000..f4c635c9dfc
--- /dev/null
+++ b/src/devices/bus/ti8x/bitsocket.h
@@ -0,0 +1,55 @@
+// 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_DEVICES_BUS_TI8X_BITSOCKET_H
+#define MAME_DEVICES_BUS_TI8X_BITSOCKET_H
+
+#pragma once
+
+#include "ti8x.h"
+
+#include "imagedev/bitbngr.h"
+
+
+extern device_type const TI8X_BIT_SOCKET;
+
+
+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 machine_config_constructor device_mconfig_additions() const 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
+
+#endif // MAME_DEVICES_BUS_TI8X_BITSOCKET_H \ No newline at end of file