// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef MAME_BUS_NES_DATACH_H #define MAME_BUS_NES_DATACH_H #pragma once #include "bandai.h" #include "softlist_dev.h" #include "machine/i2cmem.h" #include "machine/bcreader.h" //-------------------------------- // // Datach Cartslot implementation // //-------------------------------- // ======================> datach_cart_interface class datach_cart_interface : public device_slot_card_interface { public: // construction/destruction virtual ~datach_cart_interface(); // reading and writing virtual uint8_t read(offs_t offset); uint8_t *get_cart_base() { return m_rom; } void write_prg_bank(uint8_t bank) { m_bank = bank; } protected: datach_cart_interface(const machine_config &mconfig, device_t &device); optional_device m_i2cmem; // internal state uint8_t *m_rom; // ROM is accessed via two 16K banks, but only the first one can be switched uint8_t m_bank; }; // ======================> nes_datach_slot_device class nes_datach_device; class nes_datach_slot_device : public device_t, public device_image_interface, public device_slot_interface { friend class nes_datach_device; public: // construction/destruction template nes_datach_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock, T &&opts) : nes_datach_slot_device(mconfig, tag, owner, clock) { option_reset(); opts(*this); set_default_option(nullptr); set_fixed(false); } nes_datach_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~nes_datach_slot_device(); // device-level overrides virtual void device_start() override; // image-level overrides virtual image_init_result call_load() override; virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } virtual iodevice_t image_type() const override { return IO_CARTSLOT; } virtual bool is_readable() const override { return 1; } virtual bool is_writeable() const override { return 0; } virtual bool is_creatable() const override { return 0; } virtual bool must_be_loaded() const override { return 0; } virtual bool is_reset_on_load() const override { return 1; } virtual const char *image_interface() const override { return "datach_cart"; } virtual const char *file_extensions() const override { return "nes,bin"; } // slot interface overrides virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; uint8_t read(offs_t offset); void write_prg_bank(uint8_t bank) { if (m_cart) m_cart->write_prg_bank(bank); } protected: datach_cart_interface* m_cart; }; // device type definition DECLARE_DEVICE_TYPE(NES_DATACH_SLOT, nes_datach_slot_device) //-------------------------------- // // Datach Minicart implementation // //-------------------------------- // ======================> nes_datach_rom_device class nes_datach_rom_device : public device_t, public datach_cart_interface { public: // construction/destruction nes_datach_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; virtual uint8_t* get_cart_base(); protected: nes_datach_rom_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override; virtual void device_reset() override; }; // ======================> nes_datach_24c01_device class nes_datach_24c01_device : public nes_datach_rom_device { public: // construction/destruction nes_datach_24c01_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // optional information overrides virtual void device_add_mconfig(machine_config &config) override; }; // device type definition DECLARE_DEVICE_TYPE(NES_DATACH_ROM, nes_datach_rom_device) DECLARE_DEVICE_TYPE(NES_DATACH_24C01, nes_datach_24c01_device) //--------------------------------- // // Datach Base Unit implementation // //--------------------------------- // ======================> nes_datach_device class nes_datach_device : public nes_lz93d50_device { public: // construction/destruction nes_datach_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual uint8_t read_m(offs_t offset) override; virtual uint8_t read_h(offs_t offset) override; virtual void write_h(offs_t offset, uint8_t data) override; virtual void pcb_reset() override; protected: // device-level overrides virtual void device_start() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; virtual void device_add_mconfig(machine_config &config) override; uint8_t m_datach_latch; required_device m_i2cmem; required_device m_reader; required_device m_subslot; uint8_t m_i2c_dir; uint8_t m_i2c_in_use; static const device_timer_id TIMER_SERIAL = 1; emu_timer *serial_timer; }; // device type definition DECLARE_DEVICE_TYPE(NES_DATACH, nes_datach_device) #endif // MAME_BUS_NES_DATACH_H