// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/* flopdrv provides simple emulation of a disc drive */
/* the 8271, upd765 and wd179x use this */
#ifndef __FLOPDRV_H__
#define __FLOPDRV_H__
#include "formats/flopimg.h"
#define FLOPPY_TYPE_REGULAR 0
#define FLOPPY_TYPE_APPLE 1
#define FLOPPY_TYPE_SONY 2
#define FLOPPY_DRIVE_2_8_INCH 1
#define FLOPPY_DRIVE_3_INCH 2
#define FLOPPY_DRIVE_3_5_INCH 3
#define FLOPPY_DRIVE_5_25_INCH 4
#define FLOPPY_DRIVE_8_INCH 5
// Maximum supported density
#define FLOPPY_DRIVE_SD 1
#define FLOPPY_DRIVE_DD 2
#define FLOPPY_DRIVE_QD 3
#define FLOPPY_DRIVE_HD 4
#define FLOPPY_DRIVE_ED 5
#define FLOPPY_STANDARD_3_SSDD { FLOPPY_DRIVE_3_INCH, 1, 42, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_3_DSDD { FLOPPY_DRIVE_3_INCH, 2, 42, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_3_5_SSDD { FLOPPY_DRIVE_3_5_INCH, 1, 83, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_3_5_DSDD { FLOPPY_DRIVE_3_5_INCH, 2, 83, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_3_5_DSHD { FLOPPY_DRIVE_3_5_INCH, 2, 83, FLOPPY_DRIVE_HD }
#define FLOPPY_STANDARD_3_5_DSED { FLOPPY_DRIVE_3_5_INCH, 2, 83, FLOPPY_DRIVE_ED }
#define FLOPPY_STANDARD_5_25_SSSD_35 { FLOPPY_DRIVE_5_25_INCH, 1, 37, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_5_25_DSSD_35 { FLOPPY_DRIVE_5_25_INCH, 2, 37, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_5_25_SSSD { FLOPPY_DRIVE_5_25_INCH, 1, 42, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_5_25_DSSD { FLOPPY_DRIVE_5_25_INCH, 2, 42, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_5_25_SSDD_40 { FLOPPY_DRIVE_5_25_INCH, 1, 42, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_5_25_SSDD_80 { FLOPPY_DRIVE_5_25_INCH, 1, 83, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_5_25_DSDD_40 { FLOPPY_DRIVE_5_25_INCH, 2, 42, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_5_25_SSDD { FLOPPY_DRIVE_5_25_INCH, 1, 83, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_5_25_DSDD { FLOPPY_DRIVE_5_25_INCH, 2, 83, FLOPPY_DRIVE_DD }
#define FLOPPY_STANDARD_5_25_DSQD { FLOPPY_DRIVE_5_25_INCH, 2, 83, FLOPPY_DRIVE_QD }
#define FLOPPY_STANDARD_5_25_DSHD { FLOPPY_DRIVE_5_25_INCH, 2, 83, FLOPPY_DRIVE_HD }
#define FLOPPY_STANDARD_8_SSSD { FLOPPY_DRIVE_8_INCH, 1, 77, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_8_DSSD { FLOPPY_DRIVE_8_INCH, 2, 77, FLOPPY_DRIVE_SD }
#define FLOPPY_STANDARD_8_DSDD { FLOPPY_DRIVE_8_INCH, 2, 77, FLOPPY_DRIVE_DD }
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> floppy_type_t
struct floppy_type_t
{
UINT8 media_size;
UINT8 head_number;
UINT8 max_track_number;
UINT8 max_density;
};
// ======================> floppy_interface
struct floppy_interface
{
floppy_type_t floppy_type;
const struct FloppyFormat *formats;
const char *interface;
};
struct chrn_id
{
unsigned char C;
unsigned char H;
unsigned char R;
unsigned char N;
int data_id; // id for read/write data command
unsigned long flags;
};
/* set if drive is ready */
#define FLOPPY_DRIVE_READY 0x0010
/* set if index has just occurred */
#define FLOPPY_DRIVE_INDEX 0x0020
#define MCFG_LEGACY_FLOPPY_IDX_CB(_devcb) \
devcb = &legacy_floppy_image_device::set_out_idx_func(*device, DEVCB_##_devcb);
class legacy_floppy_image_device : public device_t,
public device_image_interface
{
public:
// construction/destruction
legacy_floppy_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
legacy_floppy_image_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
~legacy_floppy_image_device();
template<class _Object> static devcb_base &set_out_idx_func(device_t &device, _Object object) { return downcast<legacy_floppy_image_device &>(device).m_out_idx_func.set_callback(object); }
virtual bool call_load() override;
virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override { return load_software(swlist, swname, start_entry); }
virtual bool call_create(int format_type, option_resolution *format_options) override;
virtual void call_unload() override;
virtual iodevice_t image_type() const override { return IO_FLOPPY; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 1; }
virtual bool is_creatable() const override;
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 0; }
virtual const char *image_interface() const override;
virtual const char *file_extensions() const override { return m_extension_list; }
virtual const option_guide *create_option_guide() const override { return floppy_option_guide; }
floppy_image_legacy *flopimg_get_image();
void floppy_drive_set_geometry(floppy_type_t type);
void floppy_drive_set_flag_state(int flag, int state);
void floppy_drive_set_ready_state(int state, int flag);
int floppy_drive_get_flag_state(int flag);
void floppy_drive_seek(signed int signed_tracks);
int floppy_drive_get_next_id(int side, chrn_id *id);
void floppy_drive_read_track_data_info_buffer(int side, void *ptr, int *length );
void floppy_drive_write_track_data_info_buffer(int side, const void *ptr, int *length );
void floppy_drive_format_sector(int side, int sector_index,int c,int h, int r, int n, int filler);
void floppy_drive_read_sector_data(int side, int index1, void *ptr, int length);
void floppy_drive_write_sector_data(int side, int index1, const void *ptr,int length, int ddam);
void floppy_install_load_proc(void (*proc)(device_image_interface &image));
void floppy_install_unload_proc(void (*proc)(device_image_interface &image));
void floppy_drive_set_index_pulse_callback(void (*callback)(device_t *controller,device_t *image, int state));
int floppy_drive_get_current_track();
UINT64 floppy_drive_get_current_track_size(int head);
void floppy_drive_set_rpm(float rpm);
void floppy_drive_set_controller(device_t *controller);
int floppy_get_drive_type();
void floppy_set_type(int ftype);
WRITE_LINE_MEMBER( floppy_ds0_w );
WRITE_LINE_MEMBER( floppy_ds1_w );
WRITE_LINE_MEMBER( floppy_ds2_w );
WRITE_LINE_MEMBER( floppy_ds3_w );
WRITE8_MEMBER( floppy_ds_w );
WRITE_LINE_MEMBER( floppy_mon_w );
WRITE_LINE_MEMBER( floppy_drtn_w );
WRITE_LINE_MEMBER( floppy_wtd_w );
WRITE_LINE_MEMBER( floppy_stp_w );
WRITE_LINE_MEMBER( floppy_wtg_w );
READ_LINE_MEMBER( floppy_wpt_r );
READ_LINE_MEMBER( floppy_tk00_r );
READ_LINE_MEMBER( floppy_dskchg_r );
READ_LINE_MEMBER( floppy_twosid_r );
READ_LINE_MEMBER( floppy_index_r );
READ_LINE_MEMBER( floppy_ready_r );
private:
int flopimg_get_sectors_per_track(int side);
void flopimg_get_id_callback(chrn_id *id, int id_index, int side);
void log_readwrite(const char *name, int head, int track, int sector, const char *buf, int length);
void floppy_drive_set_geometry_absolute(int tracks, int sides);
TIMER_CALLBACK_MEMBER(floppy_drive_index_callback);
void floppy_drive_init();
void floppy_drive_index_func();
int internal_floppy_device_load(int create_format, option_resolution *create_args);
TIMER_CALLBACK_MEMBER( set_wpt );
protected:
// device overrides
virtual void device_config_complete() override;
virtual void device_start() override;
/* callbacks */
devcb_write_line m_out_idx_func;
/* state of input lines */
int m_drtn; /* direction */
int m_stp; /* step */
int m_wtg; /* write gate */
int m_mon; /* motor on */
/* state of output lines */
int m_idx; /* index pulse */
int m_tk00; /* track 00 */
int m_wpt; /* write protect */
int m_rdy; /* ready */
int m_dskchg; /* disk changed */
/* drive select logic */
int m_drive_id;
int m_active;
const floppy_interface *m_config;
/* flags */
int m_flags;
/* maximum track allowed */
int m_max_track;
/* num sides */
int m_num_sides;
/* current track - this may or may not relate to the present cylinder number
stored by the fdc */
int m_current_track;
/* index pulse timer */
emu_timer *m_index_timer;
/* index pulse callback */
void (*m_index_pulse_callback)(device_t *controller,device_t *image, int state);
/* rotation per minute => gives index pulse frequency */
float m_rpm;
int m_id_index;
device_t *m_controller;
floppy_image_legacy *m_floppy;
int m_track;
void (*m_load_proc)(device_image_interface &image);
void (*m_unload_proc)(device_image_interface &image);
int m_floppy_drive_type;
char m_extension_list[256];
};
// device type definition
extern const device_type LEGACY_FLOPPY;
legacy_floppy_image_device *floppy_get_device(running_machine &machine,int drive);
legacy_floppy_image_device *floppy_get_device_by_type(running_machine &machine,int ftype,int drive);
int floppy_get_drive(device_t *image);
int floppy_get_drive_by_type(legacy_floppy_image_device *image,int ftype);
int floppy_get_count(running_machine &machine);
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define FLOPPY_0 "floppy0"
#define FLOPPY_1 "floppy1"
#define FLOPPY_2 "floppy2"
#define FLOPPY_3 "floppy3"
#define MCFG_LEGACY_FLOPPY_DRIVE_ADD(_tag, _config) \
MCFG_DEVICE_ADD(_tag, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_LEGACY_FLOPPY_4_DRIVES_ADD(_config) \
MCFG_DEVICE_ADD(FLOPPY_0, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config) \
MCFG_DEVICE_ADD(FLOPPY_1, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config) \
MCFG_DEVICE_ADD(FLOPPY_2, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config) \
MCFG_DEVICE_ADD(FLOPPY_3, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(_config) \
MCFG_DEVICE_ADD(FLOPPY_0, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config) \
MCFG_DEVICE_ADD(FLOPPY_1, LEGACY_FLOPPY, 0) \
MCFG_DEVICE_CONFIG(_config)
#endif /* __FLOPDRV_H__ */