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Diffstat (limited to 'src/devices/bus/coleco/ctrl.h')
-rw-r--r-- | src/devices/bus/coleco/ctrl.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/devices/bus/coleco/ctrl.h b/src/devices/bus/coleco/ctrl.h new file mode 100644 index 00000000000..dc45d18c1aa --- /dev/null +++ b/src/devices/bus/coleco/ctrl.h @@ -0,0 +1,105 @@ +// 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 |