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-rw-r--r--src/devices/bus/nes/karastudio.h147
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diff --git a/src/devices/bus/nes/karastudio.h b/src/devices/bus/nes/karastudio.h
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __NES_KARASTUDIO_H
+#define __NES_KARASTUDIO_H
+
+#include "nxrom.h"
+
+
+//-----------------------------------------
+//
+// Karaoke Studio Cartslot implementation
+//
+//-----------------------------------------
+
+// ======================> kstudio_cart_interface
+
+class kstudio_cart_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ kstudio_cart_interface(const machine_config &mconfig, device_t &device);
+ virtual ~kstudio_cart_interface();
+
+ // reading and writing
+ virtual DECLARE_READ8_MEMBER(read);
+
+ UINT8 *get_cart_base() { return m_rom; }
+ void write_prg_bank(UINT8 bank) { m_bank = bank; }
+
+protected:
+ // internal state
+ UINT8 *m_rom;
+ // ROM is accessed via two 16K banks, but only the first one can be switched
+ UINT8 m_bank;
+};
+
+// ======================> nes_kstudio_slot_device
+
+class nes_kstudio_slot_device : public device_t,
+ public device_image_interface,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ nes_kstudio_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~nes_kstudio_slot_device();
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_config_complete() { update_names(); }
+
+ // image-level overrides
+ virtual bool call_load();
+ virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
+
+ virtual iodevice_t image_type() const { return IO_CARTSLOT; }
+ virtual bool is_readable() const { return 1; }
+ virtual bool is_writeable() const { return 0; }
+ virtual bool is_creatable() const { return 0; }
+ virtual bool must_be_loaded() const { return 0; }
+ virtual bool is_reset_on_load() const { return 1; }
+ virtual const char *image_interface() const { return "ks_cart"; }
+ virtual const char *file_extensions() const { return "bin"; }
+ virtual const option_guide *create_option_guide() const { return NULL; }
+
+ // slot interface overrides
+ virtual void get_default_card_software(std::string &result);
+
+ virtual DECLARE_READ8_MEMBER(read);
+ void write_prg_bank(UINT8 bank) { if (m_cart) m_cart->write_prg_bank(bank); }
+
+ kstudio_cart_interface* m_cart;
+};
+
+// device type definition
+extern const device_type NES_KSEXPANSION_SLOT;
+
+
+#define MCFG_KSTUDIO_MINICART_ADD(_tag, _slot_intf) \
+ MCFG_DEVICE_ADD(_tag, NES_KSEXPANSION_SLOT, 0) \
+MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, NULL, false)
+
+
+//-----------------------------------------------
+//
+// Karaoke Studio Expansion cart implementation
+//
+//-----------------------------------------------
+
+// ======================> nes_kstudio_rom_device
+
+class nes_kstudio_rom_device : public device_t,
+ public kstudio_cart_interface
+{
+public:
+ // construction/destruction
+ nes_kstudio_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual UINT8* get_cart_base();
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+};
+
+// device type definition
+extern const device_type NES_KSEXPANSION_ROM;
+
+
+//-------------------------------------------
+//
+// Karaoke Studio Base Cart implementation
+//
+//-------------------------------------------
+
+// ======================> nes_karaokestudio_device
+
+class nes_karaokestudio_device : public nes_nrom_device
+{
+public:
+ // construction/destruction
+ nes_karaokestudio_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+ virtual ioport_constructor device_input_ports() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual DECLARE_READ8_MEMBER(read_m);
+ virtual DECLARE_READ8_MEMBER(read_h);
+ virtual DECLARE_WRITE8_MEMBER(write_h);
+
+ virtual void pcb_reset();
+
+protected:
+ int m_exp_active;
+ required_device<nes_kstudio_slot_device> m_subslot;
+ required_ioport m_mic_ipt;
+};
+
+
+// device type definition
+extern const device_type NES_KARAOKESTUDIO;
+
+#endif