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-rw-r--r--src/devices/bus/odyssey2/slot.h121
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diff --git a/src/devices/bus/odyssey2/slot.h b/src/devices/bus/odyssey2/slot.h
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __O2_SLOT_H
+#define __O2_SLOT_H
+
+/***************************************************************************
+ TYPE DEFINITIONS
+ ***************************************************************************/
+
+
+/* PCB */
+enum
+{
+ O2_STD = 0,
+ O2_ROM12,
+ O2_ROM16,
+ O2_CHESS,
+ O2_VOICE
+};
+
+
+// ======================> device_o2_cart_interface
+
+class device_o2_cart_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ device_o2_cart_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_o2_cart_interface();
+
+ // reading and writing
+ virtual DECLARE_READ8_MEMBER(read_rom04) { return 0xff; }
+ virtual DECLARE_READ8_MEMBER(read_rom0c) { return 0xff; }
+ virtual void write_bank(int bank) {}
+
+ virtual DECLARE_WRITE8_MEMBER(io_write) {}
+ virtual DECLARE_READ8_MEMBER(t0_read) { return 0; }
+
+ void rom_alloc(UINT32 size, const char *tag);
+ void ram_alloc(UINT32 size);
+ UINT8* get_rom_base() { return m_rom; }
+ UINT8* get_ram_base() { return &m_ram[0]; }
+ UINT32 get_rom_size() { return m_rom_size; }
+ UINT32 get_ram_size() { return m_ram.size(); }
+
+protected:
+ // internal state
+ UINT8 *m_rom;
+ UINT32 m_rom_size;
+ dynamic_buffer m_ram;
+};
+
+
+// ======================> o2_cart_slot_device
+
+class o2_cart_slot_device : public device_t,
+ public device_image_interface,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ o2_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~o2_cart_slot_device();
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_config_complete();
+
+ // image-level overrides
+ virtual bool call_load();
+ virtual void call_unload() {}
+ virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
+
+ int get_type() { return m_type; }
+
+ 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 option_guide *create_option_guide() const { return NULL; }
+ virtual const char *image_interface() const { return "odyssey_cart"; }
+ virtual const char *file_extensions() const { return "bin,rom"; }
+
+ // slot interface overrides
+ virtual void get_default_card_software(std::string &result);
+
+ // reading and writing
+ virtual DECLARE_READ8_MEMBER(read_rom04);
+ virtual DECLARE_READ8_MEMBER(read_rom0c);
+ virtual DECLARE_WRITE8_MEMBER(io_write);
+ virtual DECLARE_READ8_MEMBER(t0_read) { if (m_cart) return m_cart->t0_read(space, offset); else return 0; }
+
+ virtual void write_bank(int bank) { if (m_cart) m_cart->write_bank(bank); }
+
+protected:
+
+ int m_type;
+ device_o2_cart_interface* m_cart;
+};
+
+
+
+// device type definition
+extern const device_type O2_CART_SLOT;
+
+
+/***************************************************************************
+ DEVICE CONFIGURATION MACROS
+ ***************************************************************************/
+
+#define O2SLOT_ROM_REGION_TAG ":cart:rom"
+
+#define MCFG_O2_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
+ MCFG_DEVICE_ADD(_tag, O2_CART_SLOT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+SLOT_INTERFACE_EXTERN(o2_cart);
+
+#endif