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Diffstat (limited to 'src/devices/bus/megadrive/cart/everdrive.h')
-rw-r--r--src/devices/bus/megadrive/cart/everdrive.h58
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
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index 00000000000..7dc8f4b19f2
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+++ b/src/devices/bus/megadrive/cart/everdrive.h
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+// 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