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Diffstat (limited to 'src/devices/bus/a2bus/byte8251.h')
-rw-r--r--src/devices/bus/a2bus/byte8251.h40
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diff --git a/src/devices/bus/a2bus/byte8251.h b/src/devices/bus/a2bus/byte8251.h
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+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_BUS_A2BUS_BYTE8251_H
+#define MAME_BUS_A2BUS_BYTE8251_H
+
+#include "a2bus.h"
+#include "machine/i8251.h"
+#include "machine/mm5307.h"
+
+class a2bus_byte8251_device : public device_t, public device_a2bus_card_interface
+{
+public:
+ // construction/destruction
+ a2bus_byte8251_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ DECLARE_INPUT_CHANGED_MEMBER(rate_changed);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+
+ // device_a2bus_card_interface overrides
+ virtual u8 read_c0nx(u8 offset) override;
+ virtual void write_c0nx(u8 offset, u8 data) override;
+
+private:
+ // object finders
+ required_device<i8251_device> m_usart;
+ required_device<mm5307_device> m_brg;
+ required_ioport m_switches;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(A2BUS_BYTE8251, a2bus_byte8251_device)
+
+#endif // MAME_BUS_A2BUS_BYTE8251_H