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-rw-r--r--src/devices/bus/psx/parallel.h74
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diff --git a/src/devices/bus/psx/parallel.h b/src/devices/bus/psx/parallel.h
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+++ b/src/devices/bus/psx/parallel.h
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+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+
+#ifndef MAME_BUS_PSX_PARALLEL_H
+#define MAME_BUS_PSX_PARALLEL_H
+
+#pragma once
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_PSX_PARALLEL_SLOT_ADD(_tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, PSX_PARALLEL_SLOT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> psx_parallel_slot_device
+
+class psx_parallel_interface;
+
+class psx_parallel_slot_device : public device_t, public device_slot_interface
+{
+public:
+ // construction/destruction
+ psx_parallel_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+ virtual ~psx_parallel_slot_device();
+
+ DECLARE_READ16_MEMBER(exp_r);
+ DECLARE_WRITE16_MEMBER(exp_w);
+
+ const bool hascard() const
+ {
+ return bool(m_card);
+ };
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ psx_parallel_interface *m_card;
+
+private:
+};
+
+
+// ======================> psx_parallel_interface
+
+class psx_parallel_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ virtual ~psx_parallel_interface();
+
+ // reading and writing
+ virtual DECLARE_READ16_MEMBER(exp_r) { return 0xff; }
+ virtual DECLARE_WRITE16_MEMBER(exp_w) { }
+
+protected:
+ psx_parallel_interface(const machine_config &mconfig, device_t &device);
+};
+
+
+// device type definition
+DECLARE_DEVICE_TYPE(PSX_PARALLEL_SLOT, psx_parallel_slot_device)
+
+SLOT_INTERFACE_EXTERN( psx_parallel_devices );
+
+
+#endif // MAME_BUS_PSX_PARALLEL_H