apple2: added HAL Labs Gizmo digital joystick adapter [R. Belmont, Golden Child]

scripts/src/bus.lua

@@ -2388,6 +2388,8 @@ if (BUSES["A2GAMEIO"]~=null) then
 		MAME_DIR .. "src/devices/bus/a2gameio/joyport.h",
 		MAME_DIR .. "src/devices/bus/a2gameio/paddles.cpp",
 		MAME_DIR .. "src/devices/bus/a2gameio/paddles.h",
+		MAME_DIR .. "src/devices/bus/a2gameio/gizmo.cpp",
+		MAME_DIR .. "src/devices/bus/a2gameio/gizmo.h",
 	}
 end
 

src/devices/bus/a2gameio/gameio.cpp

@@ -53,7 +53,7 @@
 #include "bus/a2gameio/joyport.h"
 #include "bus/a2gameio/computereyes.h"
 #include "bus/a2gameio/paddles.h"
-
+#include "bus/a2gameio/gizmo.h"
 
 //**************************************************************************
 //  CONNECTOR DEVICE IMPLEMENTATION
@@ -75,6 +75,7 @@ void apple2_gameio_device::iiandplus_options(device_slot_interface &slot)
 	slot.option_add("joy", APPLE2_JOYSTICK);
 	slot.option_add("paddles", APPLE2_PADDLES);
 	slot.option_add("joyport", APPLE2_JOYPORT);
+	slot.option_add("gizmo", APPLE2_GIZMO);
 	slot.option_add("compeyes", APPLE2_COMPUTEREYES);
 }
 
@@ -82,6 +83,7 @@ void apple2_gameio_device::default_options(device_slot_interface &slot)
 {
 	slot.option_add("joy", APPLE2_JOYSTICK);
 	slot.option_add("paddles", APPLE2_PADDLES);
+	slot.option_add("gizmo", APPLE2_GIZMO);
 	slot.option_add("compeyes", APPLE2_COMPUTEREYES);
 }
 

src/devices/bus/a2gameio/gizmo.cpp

@@ -0,0 +1,75 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+    gizmo.cpp - HAL Labs Gizmo digital joystick adapter
+	Used by Vindicator and Super Taxman 2.
+
+*********************************************************************/
+
+#include "emu.h"
+#include "bus/a2gameio/gizmo.h"
+
+//**************************************************************************
+//  GLOBAL VARIABLES
+//**************************************************************************
+
+// device type definition
+DEFINE_DEVICE_TYPE(APPLE2_GIZMO, apple2_gizmo_device, "a2gizmo", "HAL Labs Gizmo")
+
+//**************************************************************************
+//  INPUT PORTS
+//**************************************************************************
+
+static INPUT_PORTS_START( apple2_gizmo )
+	PORT_START("joystick_p1")
+	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP )
+	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT )
+	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN )
+	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT )
+	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+INPUT_PORTS_END
+
+//**************************************************************************
+//  DEVICE IMPLEMENTATION
+//**************************************************************************
+
+apple2_gizmo_device::apple2_gizmo_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+	: device_t(mconfig, APPLE2_GIZMO, tag, owner, clock)
+	, device_a2gameio_interface(mconfig, *this)
+	, m_player1(*this, "joystick_p1")
+{
+}
+
+ioport_constructor apple2_gizmo_device::device_input_ports() const
+{
+	return INPUT_PORTS_NAME(apple2_gizmo);
+}
+
+void apple2_gizmo_device::device_start()
+{
+	save_item(NAME(m_an0));
+	save_item(NAME(m_an1));
+	save_item(NAME(m_an2));
+}
+
+READ_LINE_MEMBER(apple2_gizmo_device::sw0_r)
+{
+    static const int gizmo_bits[8] = { 1,3,2,0,4,5,5,5 };
+	return BIT(m_player1->read(),gizmo_bits[m_an0+(m_an1<<1)+(m_an2<<2)]);
+}
+
+WRITE_LINE_MEMBER(apple2_gizmo_device::an0_w)
+{
+	m_an0 = state;
+}
+
+WRITE_LINE_MEMBER(apple2_gizmo_device::an1_w)
+{
+	m_an1 = state;
+}
+
+WRITE_LINE_MEMBER(apple2_gizmo_device::an2_w)
+{
+	m_an2 = state;
+}

src/devices/bus/a2gameio/gizmo.h

@@ -0,0 +1,45 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+    gizmo.h - HAL Labs Gizmo digital joystick adapter
+	Used by Vindicator and Super Taxman 2.
+
+*********************************************************************/
+
+#ifndef MAME_BUS_A2GAMEIO_GIZMO_H
+#define MAME_BUS_A2GAMEIO_GIZMO_H
+
+#pragma once
+
+#include "bus/a2gameio/gameio.h"
+
+// ======================> apple2_gizmo_device
+
+class apple2_gizmo_device : public device_t, public device_a2gameio_interface
+{
+public:
+	// construction/destruction
+	apple2_gizmo_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+	// device-level overrides
+	virtual ioport_constructor device_input_ports() const override;
+	virtual void device_start() override;
+
+	// device_a2gameio_interface overrides
+	virtual DECLARE_READ_LINE_MEMBER(sw0_r) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an0_w) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an1_w) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an2_w) override;
+
+private:
+	// input ports
+	required_ioport m_player1;
+	int m_an0, m_an1, m_an2;
+};
+
+// device type declaration
+DECLARE_DEVICE_TYPE(APPLE2_GIZMO, apple2_gizmo_device)
+
+#endif // MAME_BUS_A2GAMEIO_GIZMO_H