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-rw-r--r--src/devices/bus/coleco/ctrl.h105
1 files changed, 105 insertions, 0 deletions
diff --git a/src/devices/bus/coleco/ctrl.h b/src/devices/bus/coleco/ctrl.h
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+++ b/src/devices/bus/coleco/ctrl.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ ColecoVision controller port emulation
+
+**********************************************************************
+
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __COLECOVISION_CONTROL_PORT__
+#define __COLECOVISION_CONTROL_PORT__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_COLECOVISION_CONTROL_PORT_ADD(_tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, COLECOVISION_CONTROL_PORT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+
+#define MCFG_COLECOVISION_CONTROL_PORT_IRQ_CALLBACK(_write) \
+ devcb = &colecovision_control_port_device::set_irq_wr_callback(*device, DEVCB_##_write);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class colecovision_control_port_device;
+
+
+// ======================> device_colecovision_control_port_interface
+
+class device_colecovision_control_port_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ device_colecovision_control_port_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_colecovision_control_port_interface() { }
+
+ virtual UINT8 joy_r() { return 0xff; };
+ virtual void common0_w(int state) { m_common0 = state; };
+ virtual void common1_w(int state) { m_common1 = state; };
+
+protected:
+ colecovision_control_port_device *m_port;
+
+ int m_common0;
+ int m_common1;
+};
+
+
+// ======================> colecovision_control_port_device
+
+class colecovision_control_port_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ colecovision_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~colecovision_control_port_device() { }
+
+ // static configuration helpers
+ template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<colecovision_control_port_device &>(device).m_write_irq.set_callback(object); }
+
+ // computer interface
+ UINT8 read() { UINT8 data = 0xff; if (exists()) data = m_device->joy_r(); return data; }
+ DECLARE_READ8_MEMBER( read ) { return read(); }
+
+ DECLARE_WRITE_LINE_MEMBER( common0_w ) { if (exists()) m_device->common0_w(state); }
+ DECLARE_WRITE_LINE_MEMBER( common1_w ) { if (exists()) m_device->common1_w(state); }
+
+ bool exists() { return m_device != NULL; }
+
+ void irq_w(int state) { m_write_irq(state); }
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ device_colecovision_control_port_interface *m_device;
+
+private:
+ devcb_write_line m_write_irq;
+};
+
+
+// device type definition
+extern const device_type COLECOVISION_CONTROL_PORT;
+
+SLOT_INTERFACE_EXTERN( colecovision_control_port_devices );
+
+
+
+#endif