// license:BSD-3-Clause // copyright-holders:David Haywood #ifndef MAME_BUS_EKARA_SLOT_H #define MAME_BUS_EKARA_SLOT_H #pragma once #include "softlist_dev.h" /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ /* PCB */ enum { EKARA_PLAIN = 0, EKARA_I2C_BASE, EKARA_I2C_24C08, EKARA_I2C_24LC04, EKARA_I2C_24LC02, }; // ======================> device_ekara_cart_interface class device_ekara_cart_interface : public device_interface { public: // construction/destruction virtual ~device_ekara_cart_interface(); // reading and writing virtual uint8_t read_cart(offs_t offset) { return 0xff; } virtual void write_cart(offs_t offset, uint8_t data) { } virtual uint8_t read_extra(offs_t offset) { return 0xff; } virtual void write_extra(offs_t offset, uint8_t data) { } virtual DECLARE_WRITE_LINE_MEMBER(write_sda) { } virtual DECLARE_WRITE_LINE_MEMBER(write_scl) { } //virtual DECLARE_WRITE_LINE_MEMBER( write_wc ) virtual DECLARE_READ_LINE_MEMBER( read_sda ) { return 0; } virtual void write_bus_control(offs_t offset, uint8_t data) { } virtual bool is_read_access_not_rom(void) { return false; } virtual bool is_write_access_not_rom(void) { return false; } void rom_alloc(uint32_t size, const char *tag); uint8_t* get_rom_base() { return m_rom; } uint32_t get_rom_size() { return m_rom_size; } protected: device_ekara_cart_interface(const machine_config &mconfig, device_t &device); // internal state uint8_t *m_rom; uint32_t m_rom_size; }; // ======================> ekara_cart_slot_device class ekara_cart_slot_device : public device_t, public device_image_interface, public device_single_card_slot_interface { public: // construction/destruction ekara_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); template ekara_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&opts, const char *dflt) : ekara_cart_slot_device(mconfig, tag, owner, clock) { option_reset(); opts(*this); set_default_option(dflt); set_fixed(false); } virtual ~ekara_cart_slot_device(); // image-level overrides virtual image_init_result call_load() override; virtual void call_unload() override {} virtual iodevice_t image_type() const noexcept override { return IO_CARTSLOT; } virtual bool is_readable() const noexcept override { return true; } virtual bool is_writeable() const noexcept override { return false; } virtual bool is_creatable() const noexcept override { return false; } virtual bool must_be_loaded() const noexcept override { return false; } virtual bool is_reset_on_load() const noexcept override { return true; } virtual const char *image_interface() const noexcept override { return "ekara_cart"; } virtual const char *file_extensions() const noexcept override { return "bin,u1"; } // slot interface overrides virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; int get_type() { return m_type; } static int get_cart_type(const uint8_t *ROM, uint32_t len); // reading and writing uint8_t read_cart(offs_t offset); void write_cart(offs_t offset, uint8_t data); uint8_t read_extra(offs_t offset); void write_extra(offs_t offset, uint8_t data); DECLARE_WRITE_LINE_MEMBER(write_sda); DECLARE_WRITE_LINE_MEMBER(write_scl); //DECLARE_WRITE_LINE_MEMBER( write_wc ); DECLARE_READ_LINE_MEMBER( read_sda ); void write_bus_control(offs_t offset, uint8_t data); bool is_read_access_not_rom(void); bool is_write_access_not_rom(void); bool has_cart() { return m_cart ? true : false; } protected: // device-level overrides virtual void device_start() override; // device_image_interface implementation virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } int m_type; device_ekara_cart_interface* m_cart; }; // device type definition DECLARE_DEVICE_TYPE(EKARA_CART_SLOT, ekara_cart_slot_device) /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define EKARASLOT_ROM_REGION_TAG ":cart:rom" void ekara_cart(device_slot_interface &device); #endif // MAME_BUS_EKARA_SLOT_H