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Diffstat (limited to 'src/devices/bus/coleco/controller/ctrl.h')
-rw-r--r-- | src/devices/bus/coleco/controller/ctrl.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/devices/bus/coleco/controller/ctrl.h b/src/devices/bus/coleco/controller/ctrl.h new file mode 100644 index 00000000000..3460dec0b7d --- /dev/null +++ b/src/devices/bus/coleco/controller/ctrl.h @@ -0,0 +1,93 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + ColecoVision controller port emulation + +********************************************************************** + + +**********************************************************************/ + +#ifndef MAME_BUS_COLECO_CTRL_H +#define MAME_BUS_COLECO_CTRL_H + +#pragma once + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class colecovision_control_port_device; + + +// ======================> device_colecovision_control_port_interface + +class device_colecovision_control_port_interface : public device_slot_card_interface +{ +public: + virtual uint8_t joy_r() { return 0xff; } + virtual void common0_w(int state) { m_common0 = state; } + virtual void common1_w(int state) { m_common1 = state; } + +protected: + // construction/destruction + device_colecovision_control_port_interface(const machine_config &mconfig, device_t &device); + + 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 + template <typename T> + colecovision_control_port_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt) + : colecovision_control_port_device(mconfig, tag, owner, (uint32_t)0) + { + option_reset(); + opts(*this); + set_default_option(dflt); + set_fixed(false); + } + colecovision_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + // static configuration helpers + auto irq() { return m_write_irq.bind(); } + + // computer interface + uint8_t read() { uint8_t 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 != nullptr; } + + void irq_w(int state) { m_write_irq(state); } + +protected: + // device-level overrides + virtual void device_start() override; + + device_colecovision_control_port_interface *m_device; + +private: + devcb_write_line m_write_irq; +}; + + +// device type definition +DECLARE_DEVICE_TYPE(COLECOVISION_CONTROL_PORT, colecovision_control_port_device) + +void colecovision_control_port_devices(device_slot_interface &device); + + +#endif // MAME_BUS_COLECO_CTRL_H |