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// license:GPL-2.0+
// copyright-holders:Brandon Munger
/**********************************************************************
ROLM 9751 9005 Peripheral device controller emulation
**********************************************************************/
#pragma once
#ifndef __R9751_PDC_H__
#define __R9751_PDC_H__
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/upd765.h"
#include "machine/am9517a.h"
#include "formats/pc_dsk.h"
#include "machine/hdc92x4.h"
#include "imagedev/mfmhd.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define PDC_TAG "pdc"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> pdc_device
class pdc_device : public device_t
{
public:
/* Constructor and Destructor */
pdc_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
/* Optional information overrides */
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
virtual const rom_entry *device_rom_region() const override;
/* Callbacks */
template<class _Object> static devcb_base &m68k_r_callback(device_t &device, _Object object) { return downcast<pdc_device &>(device).m_m68k_r_cb.set_callback(object); }
template<class _Object> static devcb_base &m68k_w_callback(device_t &device, _Object object) { return downcast<pdc_device &>(device).m_m68k_w_cb.set_callback(object); }
/* Read and Write members */
DECLARE_WRITE_LINE_MEMBER(i8237_hreq_w);
DECLARE_WRITE_LINE_MEMBER(i8237_eop_w);
DECLARE_READ8_MEMBER(i8237_dma_mem_r);
DECLARE_WRITE8_MEMBER(i8237_dma_mem_w);
DECLARE_READ8_MEMBER(i8237_fdc_dma_r);
DECLARE_WRITE8_MEMBER(i8237_fdc_dma_w);
DECLARE_WRITE_LINE_MEMBER(hdd_irq);
DECLARE_READ8_MEMBER(p0_7_r);
DECLARE_WRITE8_MEMBER(p0_7_w);
DECLARE_READ8_MEMBER(fdd_68k_r);
DECLARE_WRITE8_MEMBER(fdd_68k_w);
DECLARE_WRITE8_MEMBER(p38_w);
DECLARE_READ8_MEMBER(p38_r);
DECLARE_READ8_MEMBER(p39_r);
DECLARE_WRITE8_MEMBER(p50_5f_w);
DECLARE_READ8_MEMBER(m68k_dma_r);
DECLARE_WRITE8_MEMBER(m68k_dma_w);
DECLARE_WRITE_LINE_MEMBER(fdc_irq);
DECLARE_FLOPPY_FORMATS( floppy_formats );
/* Main CPU accessible registers */
UINT8 reg_p0;
UINT8 reg_p1;
UINT8 reg_p2;
UINT8 reg_p3;
UINT8 reg_p4;
UINT8 reg_p5;
UINT8 reg_p6;
UINT8 reg_p7;
UINT8 reg_p21;
UINT8 reg_p38;
UINT32 fdd_68k_dma_address; /* FDD <-> m68k DMA read/write address */
protected:
/* Device-level overrides */
virtual void device_start() override;
virtual void device_reset() override;
/* Protected variables */
//UINT32 fdd_68k_dma_address;
bool b_fdc_irq;
/* Attached devices */
required_device<cpu_device> m_pdccpu;
required_device<am9517a_device> m_dma8237;
required_device<upd765a_device> m_fdc;
//required_device<floppy_connector> m_floppy;
//required_device<floppy_image_device> m_floppy;
optional_device<hdc9224_device> m_hdc9224;
mfm_harddisk_device* m_harddisk;
required_shared_ptr<UINT8> m_pdc_ram;
/* Callbacks */
devcb_read8 m_m68k_r_cb;
devcb_write8 m_m68k_w_cb;
};
/* Device type */
extern const device_type PDC;
/* MCFG defines */
#define MCFG_PDC_R_CB(_devcb) \
devcb = &pdc_device::m68k_r_callback(*device, DEVCB_##_devcb);
#define MCFG_PDC_W_CB(_devcb) \
devcb = &pdc_device::m68k_w_callback(*device, DEVCB_##_devcb);
#endif
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