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Diffstat (limited to 'src/mame/machine/hyperscan_card.h')
-rw-r--r-- | src/mame/machine/hyperscan_card.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/mame/machine/hyperscan_card.h b/src/mame/machine/hyperscan_card.h new file mode 100644 index 00000000000..c1d2cff450e --- /dev/null +++ b/src/mame/machine/hyperscan_card.h @@ -0,0 +1,58 @@ +// license:BSD-3-Clause +// copyright-holders:Sandro Ronco + + +#ifndef MAME_MACHINE_HYPERSCAN_CARD_H +#define MAME_MACHINE_HYPERSCAN_CARD_H + +#pragma once + +#include "softlist_dev.h" + +class hyperscan_card_device : public device_t, + public device_image_interface +{ +public: + hyperscan_card_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + int read(); + void write(int state); + +protected: + virtual void device_start() override; + virtual void device_reset() override; + + // 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_MEMCARD; } + virtual bool is_readable() const noexcept override { return true; } + virtual bool is_writeable() const noexcept override { return true; } + 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 false; } + virtual const char *image_interface() const noexcept override { return "hyperscan_card"; } + virtual const char *file_extensions() const noexcept override { return "bin"; } + + // device_image_interface implementation + virtual const software_list_loader &get_software_list_loader() const override { return image_software_list_loader::instance(); } + +private: + uint16_t calc_crc(std::vector<uint8_t> const &data); + void resp_add_byte(uint8_t data, bool add_parity); + void make_resp(std::vector<uint8_t> const &data, bool add_crc); + void check_command(); + + int m_state; + int m_bit_pos; + uint8_t m_data; + std::vector<uint8_t> m_cmd_buf; + std::vector<uint8_t> m_resp_buf; + uint8_t m_resp_idx; + attotime m_last_at; + uint8_t m_memory[120]; +}; + +DECLARE_DEVICE_TYPE(HYPERSCAN_CARD, hyperscan_card_device) + +#endif // MAME_MACHINE_HYPERSCAN_CARD_H |