// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** ColecoVision controller port emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. ********************************************************************** **********************************************************************/ #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 static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast(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