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-rw-r--r--src/devices/bus/vcs_ctrl/ctrl.h124
1 files changed, 124 insertions, 0 deletions
diff --git a/src/devices/bus/vcs_ctrl/ctrl.h b/src/devices/bus/vcs_ctrl/ctrl.h
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index 00000000000..50f817a2a01
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+++ b/src/devices/bus/vcs_ctrl/ctrl.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Atari Video Computer System controller port emulation
+
+**********************************************************************
+
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __VCS_CONTROL_PORT__
+#define __VCS_CONTROL_PORT__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_VCS_CONTROL_PORT_ADD(_tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, VCS_CONTROL_PORT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+
+#define MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(_write) \
+ devcb = &vcs_control_port_device::set_trigger_wr_callback(*device, DEVCB_##_write);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class vcs_control_port_device;
+
+
+// ======================> device_vcs_control_port_interface
+
+class device_vcs_control_port_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ device_vcs_control_port_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_vcs_control_port_interface() { }
+
+ virtual UINT8 vcs_joy_r() { return 0xff; };
+ virtual UINT8 vcs_pot_x_r() { return 0xff; };
+ virtual UINT8 vcs_pot_y_r() { return 0xff; };
+ virtual void vcs_joy_w(UINT8 data) { };
+
+ virtual bool has_pot_x() { return false; }
+ virtual bool has_pot_y() { return false; }
+
+protected:
+ vcs_control_port_device *m_port;
+};
+
+
+// ======================> vcs_control_port_device
+
+class vcs_control_port_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ vcs_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~vcs_control_port_device() { }
+
+ // static configuration helpers
+ template<class _Object> static devcb_base &set_trigger_wr_callback(device_t &device, _Object object) { return downcast<vcs_control_port_device &>(device).m_write_trigger.set_callback(object); }
+
+ // computer interface
+
+ // Data returned by the joy_r methods:
+ // bit 0 - pin 1 - Up
+ // bit 1 - pin 2 - Down
+ // bit 2 - pin 3 - Left
+ // bit 3 - pin 4 - Right
+ // bit 4 - pin 5 -
+ // bit 5 - pin 6 - Button
+ // pin 7 - +5V
+ // pin 8 - GND
+ // bit 6 - pin 9 -
+ //
+ UINT8 joy_r() { UINT8 data = 0xff; if (exists()) data = m_device->vcs_joy_r(); return data; }
+ DECLARE_READ8_MEMBER( joy_r ) { return joy_r(); }
+ UINT8 pot_x_r() { UINT8 data = 0xff; if (exists()) data = m_device->vcs_pot_x_r(); return data; }
+ DECLARE_READ8_MEMBER( pot_x_r ) { return pot_x_r(); }
+ UINT8 pot_y_r() { UINT8 data = 0xff; if (exists()) data = m_device->vcs_pot_y_r(); return data; }
+ DECLARE_READ8_MEMBER( pot_y_r ) { return pot_y_r(); }
+
+ void joy_w( UINT8 data ) { if ( exists() ) m_device->vcs_joy_w( data ); }
+ DECLARE_WRITE8_MEMBER( joy_w );
+
+ bool exists() { return m_device != NULL; }
+ bool has_pot_x() { return exists() && m_device->has_pot_x(); }
+ bool has_pot_y() { return exists() && m_device->has_pot_y(); }
+
+ void trigger_w(int state) { m_write_trigger(state); }
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ device_vcs_control_port_interface *m_device;
+
+private:
+ devcb_write_line m_write_trigger;
+};
+
+
+// device type definition
+extern const device_type VCS_CONTROL_PORT;
+
+SLOT_INTERFACE_EXTERN( vcs_control_port_devices );
+
+
+
+#endif