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Diffstat (limited to 'src/devices/bus/vtech/ioexp/joystick.cpp')
-rw-r--r--src/devices/bus/vtech/ioexp/joystick.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/src/devices/bus/vtech/ioexp/joystick.cpp b/src/devices/bus/vtech/ioexp/joystick.cpp
new file mode 100644
index 00000000000..38e9732d17a
--- /dev/null
+++ b/src/devices/bus/vtech/ioexp/joystick.cpp
@@ -0,0 +1,109 @@
+// license:GPL-2.0+
+// copyright-holders:Dirk Best
+/***************************************************************************
+
+ VTech Laser/VZ Joystick Interface
+
+ VTech Laser JS 20
+ Dick Smith Electronics X-7315
+
+***************************************************************************/
+
+#include "joystick.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type JOYSTICK_INTERFACE = &device_creator<joystick_interface_device>;
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+static INPUT_PORTS_START( joystick )
+ PORT_START("joystick_0")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(1)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(1)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(1)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1)
+ PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED)
+
+ PORT_START("joystick_0_arm")
+ PORT_BIT(0x0f, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(1)
+ PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED)
+
+ PORT_START("joystick_1")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(2)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(2)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(2)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2)
+ PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED)
+
+ PORT_START("joystick_1_arm")
+ PORT_BIT(0x0f, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(2)
+ PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED)
+INPUT_PORTS_END
+
+ioport_constructor joystick_interface_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( joystick );
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// joystick_interface_device - constructor
+//-------------------------------------------------
+
+joystick_interface_device::joystick_interface_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, JOYSTICK_INTERFACE, "Laser/VZ Joystick Interface", tag, owner, clock, "joystick", __FILE__),
+ device_ioexp_interface(mconfig, *this),
+ m_joy0(*this, "joystick_0"),
+ m_joy0_arm(*this, "joystick_0_arm"),
+ m_joy1(*this, "joystick_1"),
+ m_joy1_arm(*this, "joystick_1_arm")
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void joystick_interface_device::device_start()
+{
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void joystick_interface_device::device_reset()
+{
+ m_slot->m_io->install_read_handler(0x20, 0x2f, read8_delegate(FUNC(joystick_interface_device::joystick_r), this));
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+READ8_MEMBER( joystick_interface_device::joystick_r )
+{
+ UINT8 data = 0xff;
+
+ if (!BIT(offset, 0)) data &= m_joy0->read();
+ if (!BIT(offset, 1)) data &= m_joy0_arm->read();
+ if (!BIT(offset, 2)) data &= m_joy1->read();
+ if (!BIT(offset, 3)) data &= m_joy1_arm->read();
+
+ return data;
+}