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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(); }
+
+ // dat1byte line when present (active high)
+ auto dat1byte_cb() { return m_dat1byte_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, m_dat1byte_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 ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+ void update_phases();
+};
+
+#endif // MAME_MACHINE_APPLEFDINTF_H