// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Atari Portfolio Expansion Port emulation
**********************************************************************
ABUF 1 2 5VS
REDY 3 4 VCC
BCOM 5 6 NCC1
NMD1 7 8 WAKE
DTR 9 10 DEN
PDET 11 12 IINT
CCLK 13 14 MRST
HLDA 15 16 HLDO
IACK 17 18 CDET
IOM 19 20 A19
A18 21 22 A17
A16 23 24 A15
A14 25 26 A13
A12 27 28 A11
A10 29 30 A9
A8 31 32 VRAM
HLDI 33 34 ALE
GND 35 36 NMIO
OA7 37 38 OA6
OA5 39 40 OA4
OA3 41 42 OA2
OA1 43 44 OA0
AD0 45 46 AD1
AD2 47 48 AD3
AD4 49 50 AD5
AD6 51 52 AD7
EINT 53 54 NRDI
VEXT 55 56 EACK
BATD 57 58 NWRI
5VS 59 60 BBUF
**********************************************************************/
#pragma once
#ifndef __PORTFOLIO_EXPANSION_SLOT__
#define __PORTFOLIO_EXPANSION_SLOT__
#include "emu.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define PORTFOLIO_EXPANSION_SLOT_TAG "exp"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_PORTFOLIO_EXPANSION_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \
MCFG_DEVICE_ADD(_tag, PORTFOLIO_EXPANSION_SLOT, _clock) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#define MCFG_PORTFOLIO_EXPANSION_SLOT_IINT_CALLBACK(_write) \
devcb = &portfolio_expansion_slot_t::set_iint_wr_callback(*device, DEVCB_##_write);
#define MCFG_PORTFOLIO_EXPANSION_SLOT_EINT_CALLBACK(_write) \
devcb = &portfolio_expansion_slot_t::set_eint_wr_callback(*device, DEVCB_##_write);
#define MCFG_PORTFOLIO_EXPANSION_SLOT_NMIO_CALLBACK(_write) \
devcb = &portfolio_expansion_slot_t::set_nmio_wr_callback(*device, DEVCB_##_write);
#define MCFG_PORTFOLIO_EXPANSION_SLOT_WAKE_CALLBACK(_write) \
devcb = &portfolio_expansion_slot_t::set_wake_wr_callback(*device, DEVCB_##_write);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> device_portfolio_expansion_slot_interface
class portfolio_expansion_slot_t;
class device_portfolio_expansion_slot_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_portfolio_expansion_slot_interface(const machine_config &mconfig, device_t &device);
virtual ~device_portfolio_expansion_slot_interface() { }
virtual bool nmd1() { return 1; }
virtual bool pdet() { return 0; }
virtual bool cdet() { return 1; }
virtual UINT8 iack_r() { return 0xff; }
virtual UINT8 eack_r() { return 0xff; }
virtual UINT8 nrdi_r(address_space &space, offs_t offset, UINT8 data, bool iom, bool bcom, bool ncc1) { return data; };
virtual void nwri_w(address_space &space, offs_t offset, UINT8 data, bool iom, bool bcom, bool ncc1) { };
DECLARE_WRITE_LINE_MEMBER( iint_w );
DECLARE_WRITE_LINE_MEMBER( eint_w );
DECLARE_WRITE_LINE_MEMBER( nmio_w );
DECLARE_WRITE_LINE_MEMBER( wake_w );
protected:
portfolio_expansion_slot_t *m_slot;
};
// ======================> portfolio_expansion_slot_t
class portfolio_expansion_slot_t : public device_t,
public device_slot_interface
{
public:
// construction/destruction
portfolio_expansion_slot_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~portfolio_expansion_slot_t() { }
template<class _Object> static devcb_base &set_iint_wr_callback(device_t &device, _Object object) { return downcast<portfolio_expansion_slot_t &>(device).m_write_iint.set_callback(object); }
template<class _Object> static devcb_base &set_eint_wr_callback(device_t &device, _Object object) { return downcast<portfolio_expansion_slot_t &>(device).m_write_eint.set_callback(object); }
template<class _Object> static devcb_base &set_nmio_wr_callback(device_t &device, _Object object) { return downcast<portfolio_expansion_slot_t &>(device).m_write_nmio.set_callback(object); }
template<class _Object> static devcb_base &set_wake_wr_callback(device_t &device, _Object object) { return downcast<portfolio_expansion_slot_t &>(device).m_write_wake.set_callback(object); }
// computer interface
bool nmd1_r() { return (m_card != nullptr) ? m_card->nmd1() : 1; }
bool pdet_r() { return (m_card != nullptr) ? m_card->pdet() : 0; }
bool cdet_r() { return (m_card != nullptr) ? m_card->cdet() : 1; }
UINT8 iack_r() { return (m_card != nullptr) ? m_card->iack_r() : 0xff; };
UINT8 eack_r() { return (m_card != nullptr) ? m_card->eack_r() : 0xff; };
UINT8 nrdi_r(address_space &space, offs_t offset, UINT8 data, bool iom, bool bcom, bool ncc1) { return (m_card != nullptr) ? m_card->nrdi_r(space, offset, data, iom, bcom, ncc1) : data; }
void nwri_w(address_space &space, offs_t offset, UINT8 data, bool iom, bool bcom, bool ncc1) { if (m_card != nullptr) m_card->nwri_w(space, offset, data, iom, bcom, ncc1); }
// peripheral interface
WRITE_LINE_MEMBER( iint_w ) { m_write_iint(state); }
WRITE_LINE_MEMBER( eint_w ) { m_write_eint(state); }
WRITE_LINE_MEMBER( nmio_w ) { m_write_nmio(state); }
WRITE_LINE_MEMBER( wake_w ) { m_write_wake(state); }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
devcb_write_line m_write_iint;
devcb_write_line m_write_eint;
devcb_write_line m_write_nmio;
devcb_write_line m_write_wake;
device_portfolio_expansion_slot_interface *m_card;
};
// device type definition
extern const device_type PORTFOLIO_EXPANSION_SLOT;
SLOT_INTERFACE_EXTERN( portfolio_expansion_cards );
#endif