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Diffstat (limited to 'src/emu/bus/wangpc/wdc.h')
-rw-r--r-- | src/emu/bus/wangpc/wdc.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/emu/bus/wangpc/wdc.h b/src/emu/bus/wangpc/wdc.h new file mode 100644 index 00000000000..ac0dab4f125 --- /dev/null +++ b/src/emu/bus/wangpc/wdc.h @@ -0,0 +1,84 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Wang PC-PM001 Winchester Disk Controller emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#pragma once + +#ifndef __WANGPC_WDC__ +#define __WANGPC_WDC__ + +#include "emu.h" +#include "wangpc.h" +#include "cpu/z80/z80.h" +#include "imagedev/harddriv.h" +#include "machine/z80ctc.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> wangpc_wdc_device + +class wangpc_wdc_device : public device_t, + public device_wangpcbus_card_interface +{ +public: + // construction/destruction + wangpc_wdc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + + // not really public + DECLARE_READ8_MEMBER( port_r ); + DECLARE_WRITE8_MEMBER( status_w ); + DECLARE_READ8_MEMBER( ctc_ch0_r ); + DECLARE_WRITE8_MEMBER( ctc_ch0_w ); + DECLARE_READ8_MEMBER( ctc_ch1_r ); + DECLARE_WRITE8_MEMBER( ctc_ch1_w ); + DECLARE_READ8_MEMBER( ctc_ch2_r ); + DECLARE_WRITE8_MEMBER( ctc_ch2_w ); + DECLARE_READ8_MEMBER( ctc_ch3_r ); + DECLARE_WRITE8_MEMBER( ctc_ch3_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_wangpcbus_card_interface overrides + virtual UINT16 wangpcbus_mrdc_r(address_space &space, offs_t offset, UINT16 mem_mask); + virtual void wangpcbus_amwc_w(address_space &space, offs_t offset, UINT16 mem_mask, UINT16 data); + virtual UINT16 wangpcbus_iorc_r(address_space &space, offs_t offset, UINT16 mem_mask); + virtual void wangpcbus_aiowc_w(address_space &space, offs_t offset, UINT16 mem_mask, UINT16 data); + virtual UINT8 wangpcbus_dack_r(address_space &space, int line); + virtual void wangpcbus_dack_w(address_space &space, int line, UINT8 data); + virtual bool wangpcbus_have_dack(int line); + +private: + inline void set_irq(int state); + + required_device<cpu_device> m_maincpu; + required_device<z80ctc_device> m_ctc; + + UINT8 m_status; + UINT8 m_option; + int m_irq; +}; + + +// device type definition +extern const device_type WANGPC_WDC; + + +#endif |