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// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
X68000 Custom SASI HD controller
*/
#ifndef MAME_MACHINE_X68K_HDC_H
#define MAME_MACHINE_X68K_HDC_H
#pragma once
class x68k_hdc_image_device : public device_t,
public device_image_interface
{
public:
// construction/destruction
x68k_hdc_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// image-level overrides
virtual iodevice_t image_type() const override { return IO_HARDDISK; }
virtual bool is_readable() const override { return true; }
virtual bool is_writeable() const override { return true; }
virtual bool is_creatable() const override { return true; }
virtual bool must_be_loaded() const override { return false; }
virtual bool is_reset_on_load() const override { return false; }
virtual const char *file_extensions() const override { return "hdf"; }
virtual const char *custom_instance_name() const override { return "sasihd"; }
virtual const char *custom_brief_instance_name() const override { return "sasi"; }
virtual image_init_result call_create(int format_type, util::option_resolution *format_options) override;
DECLARE_WRITE16_MEMBER( hdc_w );
DECLARE_READ16_MEMBER( hdc_r );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
int m_phase;
unsigned char m_status_port; // read at 0xe96003
unsigned char m_status; // status phase output
//unsigned char m_message;
unsigned char m_command[10];
unsigned char m_sense[4];
int m_command_byte_count;
int m_command_byte_total;
int m_current_command;
int m_transfer_byte_count;
int m_transfer_byte_total;
int m_msg; // MSG
int m_cd; // C/D (Command/Data)
int m_bsy; // BSY
int m_io; // I/O
int m_req; // REQ
};
// device type definition
DECLARE_DEVICE_TYPE(X68KHDC, x68k_hdc_image_device)
#define MCFG_X68KHDC_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, X68KHDC, 0)
#endif // MAME_MACHINE_X68K_HDC_H
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