summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/centronics/spjoy.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/centronics/spjoy.h')
-rw-r--r--src/devices/bus/centronics/spjoy.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/devices/bus/centronics/spjoy.h b/src/devices/bus/centronics/spjoy.h
new file mode 100644
index 00000000000..1095f242def
--- /dev/null
+++ b/src/devices/bus/centronics/spjoy.h
@@ -0,0 +1,50 @@
+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/***************************************************************************
+
+ The Serial Port / Vertical Twist Joystick Interface
+
+***************************************************************************/
+
+#ifndef MAME_BUS_CENTRONICS_SPJOY_H
+#define MAME_BUS_CENTRONICS_SPJOY_H
+
+#pragma once
+
+#include "ctronics.h"
+
+class serial_port_joystick_device : public device_t,
+ public device_centronics_peripheral_interface
+{
+public:
+ // construction/destruction
+ serial_port_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual ioport_constructor device_input_ports() const override;
+
+ virtual void input_data0(int state) override { if (state) m_data |= 0x01; else m_data &= ~0x01; update_busy_ack(); }
+ virtual void input_data1(int state) override { if (state) m_data |= 0x02; else m_data &= ~0x02; update_busy_ack(); }
+ virtual void input_data2(int state) override { if (state) m_data |= 0x04; else m_data &= ~0x04; update_busy_ack(); }
+ virtual void input_data3(int state) override { if (state) m_data |= 0x08; else m_data &= ~0x08; update_busy_ack(); }
+ virtual void input_data4(int state) override { if (state) m_data |= 0x10; else m_data &= ~0x10; update_busy_ack(); }
+ virtual void input_data5(int state) override { if (state) m_data |= 0x20; else m_data &= ~0x20; update_busy_ack(); }
+ virtual void input_data6(int state) override { if (state) m_data |= 0x40; else m_data &= ~0x40; update_busy_ack(); }
+ virtual void input_data7(int state) override { if (state) m_data |= 0x80; else m_data &= ~0x80; update_busy_ack(); }
+
+private:
+ required_ioport_array<2> m_joy;
+
+ void update_busy_ack();
+
+ uint8_t m_data;
+ int m_busy;
+ int m_ack;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(SERIAL_PORT_JOYSTICK, serial_port_joystick_device)
+
+#endif // MAME_BUS_CENTRONICS_SPJOY_H