// license:BSD-3-Clause // copyright-holders:R. Belmont /********************************************************************* a2sd.h Implementation of the AppleIISD card *********************************************************************/ #ifndef MAME_BUS_A2BUS_A2SD_H #define MAME_BUS_A2BUS_A2SD_H #pragma once #include "a2bus.h" #include "machine/at28c64b.h" #include "machine/spi_sdcard.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2bus_a2sd_device: public device_t, public device_a2bus_card_interface { public: // construction/destruction a2bus_a2sd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: a2bus_a2sd_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; // overrides of standard a2bus slot functions virtual u8 read_c0nx(u8 offset) override; virtual void write_c0nx(u8 offset, u8 data) override; virtual u8 read_cnxx(u8 offset) override; virtual void write_cnxx(u8 offset, u8 data) override; virtual u8 read_c800(uint16_t offset) override; virtual void write_c800(uint16_t offset, u8 data) override; // SPI 4-wire interface WRITE_LINE_MEMBER(spi_miso_w) { m_in_bit = state; } private: required_device m_flash; required_device m_sdcard; u8 m_datain, m_in_latch, m_out_latch; u8 m_c0n1, m_c0n3; int m_in_bit; int m_shift_count; emu_timer *m_shift_timer; }; // device type definition DECLARE_DEVICE_TYPE(A2BUS_A2SD, a2bus_a2sd_device) #endif // MAME_BUS_A2BUS_A2SD_H