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// license:BSD-3-Clause
// copyright-holders:O. Galibert
/*********************************************************************
applefdintf.h
Common interface of various Apple Floppy Disk Controllers, implemented
in the classic Apple controller, the IWM and the SWIM variants
*********************************************************************/
#ifndef MAME_MACHINE_APPLEFDINTF_H
#define MAME_MACHINE_APPLEFDINTF_H
#pragma once
#include "imagedev/floppy.h"
class applefdintf_device : public device_t
{
public:
// read/write handlers for cpu access
virtual uint8_t read(offs_t offset) = 0;
virtual void write(offs_t offset, u8 data) = 0;
// phases line management
// Input from the exterior for the devices where they are bidirectional
void phases_w(u8 phases);
// Push output for when driven by the chip
auto phases_cb() { return m_phases_cb.bind(); }
// sel35 line when present (active high)
auto sel35_cb() { return m_sel35_cb.bind(); }
// drive select lines (two of them in the low bits, active high)
auto devsel_cb() { return m_devsel_cb.bind(); }
// hdsel line when present and in output mode (active high)
auto hdsel_cb() { return m_hdsel_cb.bind(); }
// floppy selection input, to be updated according to the previous callbacks,
// nullptr if none selected
virtual void set_floppy(floppy_image_device *floppy) = 0;
// get the currently selected floppy
virtual floppy_image_device *get_floppy() const = 0;
// Floppy formats
// 13-sector 5.25
static void formats_525_13(format_registration &fr);
// 5.25
static void formats_525(format_registration &fr);
// 3.5
static void formats_35(format_registration &fr);
// Floppy drives slot-level
// 5.25
static void floppies_525(device_slot_interface &device);
template<typename T> static void add_525_13(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_525, "525", formats_525_13).enable_sound(true);
}
template<typename T> static void add_525_13_nc(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_525, nullptr, formats_525_13).enable_sound(true);
}
template<typename T> static void add_525(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_525, "525", formats_525).enable_sound(true);
}
template<typename T> static void add_525_nc(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_525, nullptr, formats_525).enable_sound(true);
}
// 3.5
static void floppies_35(device_slot_interface &device);
template<typename T> static void add_35(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_35, "35dd", formats_35).enable_sound(true);
}
template<typename T> static void add_35_sd(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_35, "35sd", formats_35).enable_sound(true);
}
template<typename T> static void add_35_hd(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_35, "35hd", formats_35).enable_sound(true);
}
template<typename T> static void add_35_nc(machine_config &config, T &floppy) {
FLOPPY_CONNECTOR(config, floppy, floppies_35, nullptr, formats_35).enable_sound(true);
}
// Sync the state when something external is going to change, like
// the floppy side or rpm.
virtual void sync() = 0;
protected:
devcb_write8 m_phases_cb, m_devsel_cb;
devcb_write_line m_sel35_cb, m_hdsel_cb;
// Current phase value in the bottom bits, input/output flags in the top bits
u8 m_phases;
// Current value of the driven external phases input
u8 m_phases_input;
applefdintf_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;
void update_phases();
};
#endif // MAME_MACHINE_APPLEFDINTF_H
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