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Diffstat (limited to 'src/devices/bus/megadrive/cart/everdrive.h')
| -rw-r--r-- | src/devices/bus/megadrive/cart/everdrive.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/devices/bus/megadrive/cart/everdrive.h b/src/devices/bus/megadrive/cart/everdrive.h new file mode 100644 index 00000000000..7dc8f4b19f2 --- /dev/null +++ b/src/devices/bus/megadrive/cart/everdrive.h @@ -0,0 +1,58 @@ +// license: BSD-3-Clause +// copyright-holders: Angelo Salese + +#ifndef MAME_BUS_MEGADRIVE_CART_EVERDRIVE_H +#define MAME_BUS_MEGADRIVE_CART_EVERDRIVE_H + +#pragma once + +#include "machine/intelfsh.h" +#include "machine/spi_sdcard.h" + +#include "slot.h" + +class megadrive_hb_everdrive_device : public device_t, + public device_megadrive_cart_interface +{ +public: + megadrive_hb_everdrive_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + static constexpr feature_type imperfect_features() { return feature::MEDIA; } + + virtual void cart_map(address_map &map) override ATTR_COLD; + virtual void time_io_map(address_map &map) override ATTR_COLD; + +protected: + virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; + + virtual void device_start() override ATTR_COLD; + virtual void device_reset() override ATTR_COLD; + + virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD; +private: + required_device<st_m29w640ft_device> m_flash; + required_device<spi_sdcard_device> m_sdcard; + memory_view m_game_mode; + + TIMER_CALLBACK_MEMBER(spi_clock_cb); + u16 spi_data_r(offs_t offset, u16 mem_mask = ~0); + void spi_data_w(offs_t offset, u16 data, u16 mem_mask = ~0); + u16 state_r(offs_t offset, u16 mem_mask = ~0); + void cfg_w(offs_t offset, u16 data, u16 mem_mask = ~0); + + emu_timer *m_spi_clock; + bool m_spi_clock_state; + bool m_spi_full_speed; + int m_spi_clock_cycles; + int m_in_bit; + u16 m_in_latch; + u16 m_out_latch; + bool m_spi_16; + + u32 m_rom_map_port; + u16 m_vblv; +}; + +DECLARE_DEVICE_TYPE(MEGADRIVE_HB_EVERDRIVE, megadrive_hb_everdrive_device) + +#endif // MAME_BUS_MEGADRIVE_CART_DEV_H |
