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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/****************************************************************************
Psion Solid State Disk emulation
****************************************************************************/
#ifndef MAME_MACHINE_PSION_SSD_H
#define MAME_MACHINE_PSION_SSD_H
#include "machine/psion_asic5.h"
#include "imagedev/memcard.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> psion_ssd_device
class psion_ssd_device : public device_t, public device_memcard_image_interface
{
public:
// construction/destruction
psion_ssd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~psion_ssd_device();
// callbacks
auto door_cb() { return m_door_cb.bind(); }
uint8_t data_r();
void data_w(uint16_t data);
protected:
// device_t implementation
virtual void device_config_complete() override;
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
// device_image_interface implementation
virtual std::pair<std::error_condition, std::string> call_load() override;
virtual std::pair<std::error_condition, std::string> call_create(int format_type, util::option_resolution *create_args) override;
virtual void call_unload() override;
virtual bool is_reset_on_load() const noexcept override { return false; }
virtual const char *image_interface() const noexcept override { return "psion_ssd"; }
virtual const char *file_extensions() const noexcept override { return "rom,bin"; }
virtual const char *image_type_name() const noexcept override { return "ssd"; }
virtual const char *image_brief_type_name() const noexcept override { return "ssd"; }
// device_image_interface implementation
virtual const software_list_loader &get_software_list_loader() const override;
private:
optional_memory_region m_region;
required_device<psion_asic5_device> m_asic5;
TIMER_CALLBACK_MEMBER(close_door);
devcb_write_line m_door_cb;
emu_timer *m_door_timer;
std::unique_ptr<uint8_t[]> m_ssd_data;
void set_info_byte(uint32_t size, uint8_t type = 0);
uint32_t latched_addr();
uint8_t m_info_byte;
uint32_t m_port_latch;
int m_mem_width;
static constexpr uint8_t SSD_RAM = 0;
static constexpr uint8_t SSD_FLASH1 = 1;
};
// device type definition
DECLARE_DEVICE_TYPE(PSION_SSD, psion_ssd_device)
#endif // MAME_MACHINE_PSION_SSD_H
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