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Diffstat (limited to 'src/mame/machine/wangpckb.h')
-rw-r--r-- | src/mame/machine/wangpckb.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/mame/machine/wangpckb.h b/src/mame/machine/wangpckb.h new file mode 100644 index 00000000000..27c87b071fc --- /dev/null +++ b/src/mame/machine/wangpckb.h @@ -0,0 +1,107 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Wang PC keyboard emulation + +*********************************************************************/ + +#pragma once + +#ifndef __WANGPC_KEYBOARD__ +#define __WANGPC_KEYBOARD__ + + +#include "emu.h" +#include "cpu/mcs51/mcs51.h" +#include "sound/sn76496.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + +#define WANGPC_KEYBOARD_TAG "wangpckb" + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_WANGPC_KEYBOARD_ADD() \ + MCFG_DEVICE_ADD(WANGPC_KEYBOARD_TAG, WANGPC_KEYBOARD, 0) + +#define MCFG_WANGPCKB_TXD_HANDLER(_devcb) \ + devcb = &wangpc_keyboard_device::set_txd_handler(*device, DEVCB_##_devcb); + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> wangpc_keyboard_device + +class wangpc_keyboard_device : public device_t, + public device_serial_interface +{ +public: + // construction/destruction + wangpc_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + template<class _Object> static devcb_base &set_txd_handler(device_t &device, _Object object) { return downcast<wangpc_keyboard_device &>(device).m_txd_handler.set_callback(object); } + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + virtual ioport_constructor device_input_ports() const; + + DECLARE_WRITE_LINE_MEMBER( write_rxd ); + + // not really public + DECLARE_READ8_MEMBER( kb_p1_r ); + DECLARE_WRITE8_MEMBER( kb_p1_w ); + DECLARE_WRITE8_MEMBER( kb_p2_w ); + DECLARE_WRITE8_MEMBER( kb_p3_w ); + + DECLARE_READ8_MEMBER(mcs51_rx_callback); + DECLARE_WRITE8_MEMBER(mcs51_tx_callback); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_serial_interface overrides + +private: + required_device<i8051_device> m_maincpu; + required_ioport m_y0; + required_ioport m_y1; + required_ioport m_y2; + required_ioport m_y3; + required_ioport m_y4; + required_ioport m_y5; + required_ioport m_y6; + required_ioport m_y7; + required_ioport m_y8; + required_ioport m_y9; + required_ioport m_ya; + required_ioport m_yb; + required_ioport m_yc; + required_ioport m_yd; + required_ioport m_ye; + required_ioport m_yf; + devcb_write_line m_txd_handler; + + UINT8 m_y; +}; + + +// device type definition +extern const device_type WANGPC_KEYBOARD; + + + +#endif |