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-rw-r--r--src/devices/bus/generic/slot.h176
1 files changed, 176 insertions, 0 deletions
diff --git a/src/devices/bus/generic/slot.h b/src/devices/bus/generic/slot.h
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+++ b/src/devices/bus/generic/slot.h
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+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __GENERIC_SLOT_H
+#define __GENERIC_SLOT_H
+
+/***************************************************************************
+ TYPE DEFINITIONS
+ ***************************************************************************/
+
+
+// ======================> device_generic_cart_interface
+
+class device_generic_cart_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ device_generic_cart_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_generic_cart_interface();
+
+ // reading and writing
+ virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
+ virtual DECLARE_READ16_MEMBER(read16_rom) { return 0xffff; }
+ virtual DECLARE_READ32_MEMBER(read32_rom) { return 0xffffffff; }
+
+ virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; }
+ virtual DECLARE_WRITE8_MEMBER(write_ram) {};
+
+ virtual void rom_alloc(size_t size, int width, endianness_t end, const char *tag);
+ virtual void ram_alloc(UINT32 size);
+
+ UINT8* get_rom_base() { return m_rom; }
+ UINT32 get_rom_size() { return m_rom_size; }
+
+ UINT8* get_ram_base() { return &m_ram[0]; }
+ UINT32 get_ram_size() { return m_ram.size(); }
+
+ void save_ram() { device().save_item(NAME(m_ram)); }
+
+ // internal state
+ UINT8 *m_rom;
+ UINT32 m_rom_size;
+ dynamic_buffer m_ram;
+};
+
+
+enum
+{
+ GENERIC_ROM8_WIDTH = 1,
+ GENERIC_ROM16_WIDTH = 2,
+ GENERIC_ROM32_WIDTH = 4
+};
+
+#define GENERIC_ROM_REGION_TAG ":cart:rom"
+
+
+
+#define MCFG_GENERIC_MANDATORY \
+ static_cast<generic_slot_device *>(device)->set_must_be_loaded(TRUE);
+
+#define MCFG_GENERIC_WIDTH(_width) \
+ static_cast<generic_slot_device *>(device)->set_width(_width);
+
+#define MCFG_GENERIC_ENDIAN(_endianness) \
+ static_cast<generic_slot_device *>(device)->set_endian(_endianness);
+
+#define MCFG_GENERIC_DEFAULT_CARD(_def_card) \
+ static_cast<generic_slot_device *>(device)->set_default_card(_def_card);
+
+#define MCFG_GENERIC_INTERFACE(_intf) \
+ static_cast<generic_slot_device *>(device)->set_interface(_intf);
+
+#define MCFG_GENERIC_EXTENSIONS(_ext) \
+ static_cast<generic_slot_device *>(device)->set_extensions(_ext);
+
+#define MCFG_GENERIC_LOAD(_class, _method) \
+ generic_slot_device::static_set_device_load(*device, device_image_load_delegate(&DEVICE_IMAGE_LOAD_NAME(_class,_method), #_class "::device_image_load_" #_method, downcast<_class *>(owner)));
+
+#define MCFG_GENERIC_UNLOAD(_class, _method) \
+ generic_slot_device::static_set_device_unload(*device, device_image_func_delegate(&DEVICE_IMAGE_UNLOAD_NAME(_class,_method), #_class "::device_image_unload_" #_method, downcast<_class *>(owner)));
+
+
+
+// ======================> generic_slot_device
+
+class generic_slot_device : public device_t,
+ public device_image_interface,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ generic_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~generic_slot_device();
+
+ static void static_set_device_load(device_t &device, device_image_load_delegate callback) { downcast<generic_slot_device &>(device).m_device_image_load = callback; }
+ static void static_set_device_unload(device_t &device, device_image_func_delegate callback) { downcast<generic_slot_device &>(device).m_device_image_unload = callback; }
+
+ void set_interface(const char * interface) { m_interface = interface; }
+ void set_default_card(const char * def) { m_default_card = def; }
+ void set_extensions(const char * exts) { m_extensions = exts; }
+ void set_must_be_loaded(bool mandatory) { m_must_be_loaded = mandatory; }
+ void set_width(int width) { m_width = width; }
+ void set_endian(endianness_t end) { m_endianness = end; }
+
+ // 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);
+
+ UINT32 common_get_size(const char *region);
+ void common_load_rom(UINT8 *ROM, UINT32 len, const char *region);
+
+ 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 m_must_be_loaded; }
+ 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 m_interface; }
+ virtual const char *file_extensions() const { return m_extensions; }
+
+ // slot interface overrides
+ virtual void get_default_card_software(std::string &result);
+
+ // reading and writing
+ virtual DECLARE_READ8_MEMBER(read_rom);
+ virtual DECLARE_READ16_MEMBER(read16_rom);
+ virtual DECLARE_READ32_MEMBER(read32_rom);
+
+ virtual DECLARE_READ8_MEMBER(read_ram);
+ virtual DECLARE_WRITE8_MEMBER(write_ram);
+
+ virtual void rom_alloc(size_t size, int width, endianness_t end) { if (m_cart) m_cart->rom_alloc(size, width, end, tag()); }
+ virtual void ram_alloc(UINT32 size) { if (m_cart) m_cart->ram_alloc(size); }
+
+ UINT8* get_rom_base() { if (m_cart) return m_cart->get_rom_base(); return NULL; }
+ UINT8* get_ram_base() { if (m_cart) return m_cart->get_ram_base(); return NULL; }
+ UINT32 get_rom_size() { if (m_cart) return m_cart->get_rom_size(); return 0; }
+
+ void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); }
+
+protected:
+
+ const char *m_interface;
+ const char *m_default_card;
+ const char *m_extensions;
+ bool m_must_be_loaded;
+ int m_width;
+ endianness_t m_endianness;
+ device_generic_cart_interface *m_cart;
+ device_image_load_delegate m_device_image_load;
+ device_image_func_delegate m_device_image_unload;
+};
+
+
+// device type definition
+extern const device_type GENERIC_SOCKET;
+
+
+/***************************************************************************
+ DEVICE CONFIGURATION MACROS
+ ***************************************************************************/
+
+#define MCFG_GENERIC_CARTSLOT_ADD(_tag, _slot_intf, _dev_intf) \
+ MCFG_DEVICE_ADD(_tag, GENERIC_SOCKET, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, NULL, false) \
+ MCFG_GENERIC_INTERFACE(_dev_intf)
+#define MCFG_GENERIC_SOCKET_ADD(_tag, _slot_intf, _dev_intf) \
+ MCFG_DEVICE_ADD(_tag, GENERIC_SOCKET, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, NULL, false) \
+ MCFG_GENERIC_INTERFACE(_dev_intf)
+#endif