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diff --git a/src/devices/bus/isa/aha1542c.h b/src/devices/bus/isa/aha1542c.h
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+// license:BSD-3-Clause
+// copyright-holders:Darkstar
+/**********************************************************************
+ *
+ * Adaptec AHA-1542{C,CF,CP} SCSI Controller
+ *
+ **********************************************************************
+
+
+
+ **********************************************************************/
+
+#ifndef MAME_BUS_AHA1542C_H
+#define MAME_BUS_AHA1542C_H
+
+#pragma once
+
+
+#include "isa.h"
+#include "machine/eepromser.h"
+
+//*********************************************************************
+// TYPE DEFINITIONS
+//*********************************************************************
+
+// ====================> aha1542cf_device
+
+class aha1542c_device : public device_t,
+ public device_isa16_card_interface
+{
+public:
+ static constexpr feature_type unemulated_features() { return feature::DISK; }
+ // construction/destruction
+ aha1542c_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ DECLARE_READ8_MEMBER( aha1542_r );
+ DECLARE_WRITE8_MEMBER( aha1542_w );
+
+protected:
+ aha1542c_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+ void local_latch_w(u8 data);
+
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // optional information overrides
+ virtual ioport_constructor device_input_ports() const override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+
+ required_device<eeprom_serial_93cxx_device> m_eeprom;
+
+private:
+ void z84c0010_mem(address_map &map);
+};
+
+// ====================> aha1542cf_device
+
+class aha1542cf_device : public aha1542c_device
+{
+public:
+ // construction/destruction
+ aha1542cf_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ virtual const tiny_rom_entry *device_rom_region() const override;
+};
+
+// ====================> aha1542cp_device
+
+class aha1542cp_device : public aha1542c_device
+{
+public:
+ // construction/destruction
+ aha1542cp_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+private:
+ u8 eeprom_r();
+ void eeprom_w(u8 data);
+
+ void local_mem(address_map &map);
+};
+
+// device type definitions
+DECLARE_DEVICE_TYPE(AHA1542C, aha1542c_device)
+DECLARE_DEVICE_TYPE(AHA1542CF, aha1542cf_device)
+DECLARE_DEVICE_TYPE(AHA1542CP, aha1542cp_device)
+
+#endif // MAME_BUS_AHA1542C_H