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diff --git a/src/devices/bus/ecbbus/grip.h b/src/devices/bus/ecbbus/grip.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Conitec Datensysteme GRIP graphics card emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __GRIP__
+#define __GRIP__
+
+#include "emu.h"
+#include "ecbbus.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "bus/centronics/ctronics.h"
+#include "machine/i8255.h"
+#include "machine/keyboard.h"
+#include "machine/z80sti.h"
+#include "sound/speaker.h"
+#include "video/mc6845.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> grip_device
+
+class grip_device : public device_t,
+ public device_ecbbus_card_interface
+{
+public:
+ // construction/destruction
+ grip_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ // not really public
+ DECLARE_WRITE8_MEMBER( vol0_w );
+ DECLARE_WRITE8_MEMBER( vol1_w );
+ DECLARE_WRITE8_MEMBER( flash_w );
+ DECLARE_WRITE8_MEMBER( page_w );
+ DECLARE_READ8_MEMBER( stat_r );
+ DECLARE_READ8_MEMBER( lrs_r );
+ DECLARE_WRITE8_MEMBER( lrs_w );
+ DECLARE_READ8_MEMBER( cxstb_r );
+ DECLARE_WRITE8_MEMBER( cxstb_w );
+ DECLARE_READ8_MEMBER( ppi_pa_r );
+ DECLARE_WRITE8_MEMBER( ppi_pa_w );
+ DECLARE_READ8_MEMBER( ppi_pb_r );
+ DECLARE_WRITE8_MEMBER( ppi_pc_w );
+ DECLARE_READ8_MEMBER( sti_gpio_r );
+ DECLARE_WRITE_LINE_MEMBER( speaker_w );
+ DECLARE_WRITE8_MEMBER( kb_w );
+
+ DECLARE_WRITE_LINE_MEMBER( write_centronics_busy );
+ DECLARE_WRITE_LINE_MEMBER( write_centronics_fault );
+
+ MC6845_UPDATE_ROW( crtc_update_row );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_ecbbus_card_interface overrides
+ virtual UINT8 ecbbus_io_r(offs_t offset);
+ virtual void ecbbus_io_w(offs_t offset, UINT8 data);
+
+private:
+ required_device<i8255_device> m_ppi;
+ required_device<z80sti_device> m_sti;
+ required_device<mc6845_device> m_crtc;
+ required_device<centronics_device> m_centronics;
+ required_device<palette_device> m_palette;
+ required_device<speaker_sound_device> m_speaker;
+ optional_shared_ptr<UINT8> m_video_ram;
+ required_ioport m_j3a;
+ required_ioport m_j3b;
+ required_ioport m_j7;
+
+ int m_centronics_busy;
+ int m_centronics_fault;
+
+ // sound state
+ int m_vol0;
+ int m_vol1;
+
+ // keyboard state
+ int m_ia; // PPI port A interrupt
+ int m_ib; // PPI port B interrupt
+ UINT8 m_keydata; // keyboard data
+ int m_kbf; // keyboard buffer full
+
+ // video state
+ int m_lps; // light pen sense
+ int m_page; // video page
+ int m_flash; // flash
+
+ // ECB bus state
+ UINT8 m_base; // ECB base address
+ UINT8 m_ppi_pa; // PPI port A data
+ UINT8 m_ppi_pc; // PPI port C data
+
+ // timers
+ emu_timer *m_kb_timer;
+};
+
+
+ /*
+ required_device<hd6345_device> m_crtc;
+ DECLARE_WRITE8_MEMBER( eprom_w );
+ DECLARE_WRITE8_MEMBER( dpage_w );
+
+ // video state
+ int m_dpage; // displayed video page
+ */
+
+
+
+// device type definition
+extern const device_type ECB_GRIP21;
+
+#endif