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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Intel Multibus I/O Expansion Bus IEEE-P959 (iSBX) emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
+12V 1 2 -12V
GND 3 4 +5V
RESET 5 6 MCLK
MA2 7 8 MPST/
MA1 9 10 reserved
MA0 11 12 MINTR1
/IOWRT 13 14 MINTR0
/IORD 15 16 MWAIT/
GND 17 18 +5V
MD7 19 20 MCS1/
MD6 21 22 MCS0/
MD5 23 24 reserved
MD4 25 26 TDMA
MD3 27 28 OPT1
MD2 29 30 OPT0
MD1 31 32 MDACK/
MD0 33 34 MDRQT
GND 35 36 +5V
MDE 37 38 MDF
MDC 39 40 MDD
MDA 41 42 MDB
MD8 43 44 MD9
**********************************************************************/
#pragma once
#ifndef __ISBX_SLOT__
#define __ISBX_SLOT__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_ISBX_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \
MCFG_DEVICE_ADD(_tag, ISBX_SLOT, _clock) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#define MCFG_ISBX_SLOT_MINTR0_CALLBACK(_mintr0) \
downcast<isbx_slot_device *>(device)->set_mintr0_callback(DEVCB2_##_mintr0);
#define MCFG_ISBX_SLOT_MINTR1_CALLBACK(_mintr1) \
downcast<isbx_slot_device *>(device)->set_mintr1_callback(DEVCB2_##_mintr1);
#define MCFG_ISBX_SLOT_MDRQT_CALLBACK(_mdrqt) \
downcast<isbx_slot_device *>(device)->set_mdrqt_callback(DEVCB2_##_mdrqt);
#define MCFG_ISBX_SLOT_MWAIT_CALLBACK(_mwait) \
downcast<isbx_slot_device *>(device)->set_mwait_callback(DEVCB2_##_mwait);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> device_isbx_card_interface
class isbx_slot_device;
class device_isbx_card_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_isbx_card_interface(const machine_config &mconfig, device_t &device);
virtual UINT8 mcs0_r(address_space &space, offs_t offset) { return 0xff; }
virtual void mcs0_w(address_space &space, offs_t offset, UINT8 data) { }
virtual UINT8 mcs1_r(address_space &space, offs_t offset) { return 0xff; }
virtual void mcs1_w(address_space &space, offs_t offset, UINT8 data) { }
virtual UINT8 mdack_r(address_space &space, offs_t offset) { return 0xff; }
virtual void mdack_w(address_space &space, offs_t offset, UINT8 data) { }
virtual void opt0_w(int state) { }
virtual void opt1_w(int state) { }
virtual void tdma_w(int state) { }
virtual void mclk_w(int state) { }
protected:
isbx_slot_device *m_slot;
};
// ======================> isbx_slot_device
class isbx_slot_device : public device_t,
public device_slot_interface
{
public:
// construction/destruction
isbx_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _mintr0> void set_mintr0_callback(_mintr0 mintr0) { m_write_mintr0.set_callback(mintr0); }
template<class _mintr1> void set_mintr1_callback(_mintr1 mintr1) { m_write_mintr1.set_callback(mintr1); }
template<class _mdrqt> void set_mdrqt_callback(_mdrqt mdrqt) { m_write_mdrqt.set_callback(mdrqt); }
template<class _mwait> void set_mwait_callback(_mwait mwait) { m_write_mwait.set_callback(mwait); }
// computer interface
DECLARE_READ8_MEMBER( mcs0_r ) { return m_card ? m_card->mcs0_r(space, offset) : 0xff; }
DECLARE_WRITE8_MEMBER( mcs0_w ) { if (m_card) m_card->mcs0_w(space, offset, data); }
DECLARE_READ8_MEMBER( mcs1_r ) { return m_card ? m_card->mcs1_r(space, offset) : 0xff; }
DECLARE_WRITE8_MEMBER( mcs1_w ) { if (m_card) m_card->mcs1_w(space, offset, data); }
DECLARE_READ8_MEMBER( mdack_r ) { return m_card ? m_card->mdack_r(space, offset) : 0xff; }
DECLARE_WRITE8_MEMBER( mdack_w ) { if (m_card) m_card->mdack_w(space, offset, data); }
DECLARE_READ_LINE_MEMBER( mpst_r ) { return m_card == NULL; }
DECLARE_WRITE_LINE_MEMBER( opt0_w ) { if (m_card) m_card->opt0_w(state); }
DECLARE_WRITE_LINE_MEMBER( opt1_w ) { if (m_card) m_card->opt1_w(state); }
DECLARE_WRITE_LINE_MEMBER( tdma_w ) { if (m_card) m_card->tdma_w(state); }
DECLARE_WRITE_LINE_MEMBER( mclk_w ) { if (m_card) m_card->mclk_w(state); }
// card interface
DECLARE_WRITE_LINE_MEMBER( mintr0_w ) { m_write_mintr0(state); }
DECLARE_WRITE_LINE_MEMBER( mintr1_w ) { m_write_mintr1(state); }
DECLARE_WRITE_LINE_MEMBER( mdrqt_w ) { m_write_mdrqt(state); }
DECLARE_WRITE_LINE_MEMBER( mwait_w ) { m_write_mwait(state); }
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset() { if (m_card) get_card_device()->reset(); }
devcb2_write_line m_write_mintr0;
devcb2_write_line m_write_mintr1;
devcb2_write_line m_write_mdrqt;
devcb2_write_line m_write_mwait;
device_isbx_card_interface *m_card;
};
// device type definition
extern const device_type ISBX_SLOT;
SLOT_INTERFACE_EXTERN( isbx_cards );
#endif
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