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// license:BSD-3-Clause
// copyright-holders: F. Ulivi
/*********************************************************************

    hp_optrom.h

    Optional ROMs for HP9845 systems

*********************************************************************/

#pragma once

#ifndef _HP_OPTROM_H_
#define _HP_OPTROM_H_

#include "emu.h"

class hp_optrom_cart_device : public device_t,
								public device_slot_card_interface
{
public:
		// construction/destruction
		hp_optrom_cart_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
		hp_optrom_cart_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

		// device-level overrides
		virtual void device_start() override {}
};

class hp_optrom_slot_device : public device_t,
								public device_image_interface,
								public device_slot_interface
{
public:
		// construction/destruction
		hp_optrom_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
		virtual ~hp_optrom_slot_device();

		// device-level overrides
		virtual void device_start() override;
		virtual void device_config_complete() override;

		// image-level overrides
		virtual bool call_load() override;
		virtual void call_unload() override;
		virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override;

		virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
		virtual bool is_readable()  const override { return true; }
		virtual bool is_writeable() const override { return false; }
		virtual bool is_creatable() const override { return false; }
		virtual bool must_be_loaded() const override { return false; }
		virtual bool is_reset_on_load() const override { return true; }
		virtual const option_guide *create_option_guide() const override { return nullptr; }
		virtual const char *image_interface() const override { return "hp9845b_rom"; }
		virtual const char *file_extensions() const override { return "bin"; }

		// slot interface overrides
		virtual std::string get_default_card_software() override;

protected:
		hp_optrom_cart_device *m_cart;
		dynamic_buffer m_content;
		offs_t m_base_addr;
		offs_t m_end_addr;
};

// device type definition
extern const device_type HP_OPTROM_SLOT;
extern const device_type HP_OPTROM_CART;

SLOT_INTERFACE_EXTERN(hp_optrom_slot_device);

#endif /* _HP_OPTROM_H_ */