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-rw-r--r--src/devices/bus/amiga/keyboard/a2000.h89
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diff --git a/src/devices/bus/amiga/keyboard/a2000.h b/src/devices/bus/amiga/keyboard/a2000.h
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+// license:BSD-3-Clause
+// copyright-holders:Vas Crabb
+/***************************************************************************
+
+ Amiga 2000 Keyboard
+
+ ***************************************************************************/
+
+#ifndef MAME_BUS_AMIGA_KEYBOARD_A2000_H
+#define MAME_BUS_AMIGA_KEYBOARD_A2000_H
+
+#pragma once
+
+#include "keyboard.h"
+
+
+namespace bus { namespace amiga { namespace keyboard {
+
+//**************************************************************************
+// TYPE DECLARATIONS
+//**************************************************************************
+
+// ======================> a2000_kbd_device
+
+class a2000_kbd_device : public device_t, public device_amiga_keyboard_interface
+{
+public:
+ // from host
+ virtual DECLARE_WRITE_LINE_MEMBER(kdat_w) override;
+
+protected:
+ // construction/destruction
+ a2000_kbd_device(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, uint32_t clock);
+
+ // MCU I/O
+ DECLARE_READ8_MEMBER(mcu_bus_r);
+ DECLARE_WRITE8_MEMBER(mcu_p1_w);
+ DECLARE_WRITE8_MEMBER(mcu_p2_w);
+
+ virtual const tiny_rom_entry *device_rom_region() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ void program_map(address_map &map);
+ void ext_map(address_map &map);
+
+private:
+ required_ioport_array<13> m_rows;
+ required_device<cpu_device> m_mcu;
+
+ uint16_t m_row_drive;
+ bool m_host_kdat, m_mcu_kdat, m_mcu_kclk;
+};
+
+// ======================> a2000_kbd_us_device
+
+class a2000_kbd_us_device : public a2000_kbd_device
+{
+public:
+ a2000_kbd_us_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock);
+
+protected:
+ virtual ioport_constructor device_input_ports() const override;
+};
+
+// ======================> a2000_kbd_gb_device
+
+class a2000_kbd_gb_device : public a2000_kbd_device
+{
+public:
+ a2000_kbd_gb_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock);
+
+protected:
+ virtual ioport_constructor device_input_ports() const override;
+};
+
+} } } // namespace bus::amiga::keyboard
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+DECLARE_DEVICE_TYPE_NS(A2000_KBD_US, bus::amiga::keyboard, a2000_kbd_us_device)
+DECLARE_DEVICE_TYPE_NS(A2000_KBD_GB, bus::amiga::keyboard, a2000_kbd_gb_device)
+
+#endif // MAME_BUS_AMIGA_KEYBOARD_A2000_H