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// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* cpcexp.c -- Amstrad CPC Expansion port
*
* Created on: 16/07/2011
*
*/
#include "emu.h"
#include "cpcexp.h"
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
DEFINE_DEVICE_TYPE(CPC_EXPANSION_SLOT, cpc_expansion_slot_device, "cpc_expansion_slot", "Amstrad CPC expansion port")
//**************************************************************************
// DEVICE CPC_EXPANSION CARD INTERFACE
//**************************************************************************
device_cpc_expansion_card_interface::device_cpc_expansion_card_interface(const machine_config &mconfig, device_t &device)
: device_slot_card_interface(mconfig,device)
, m_rom_sel(0)
{
}
device_cpc_expansion_card_interface::~device_cpc_expansion_card_interface()
{
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
cpc_expansion_slot_device::cpc_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, CPC_EXPANSION_SLOT, tag, owner, clock)
, device_slot_interface(mconfig, *this)
, m_cpu(*this, finder_base::DUMMY_TAG)
, m_out_irq_cb(*this)
, m_out_nmi_cb(*this)
, m_out_reset_cb(*this)
, m_out_romdis_cb(*this)
, m_out_rom_select(*this)
, m_card(nullptr)
{
}
cpc_expansion_slot_device::~cpc_expansion_slot_device()
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void cpc_expansion_slot_device::device_start()
{
m_card = dynamic_cast<device_cpc_expansion_card_interface *>(get_card_device());
// resolve callbacks
m_out_irq_cb.resolve_safe();
m_out_nmi_cb.resolve_safe();
m_out_reset_cb.resolve_safe();
m_out_romdis_cb.resolve_safe();
m_out_rom_select.resolve_safe();
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void cpc_expansion_slot_device::device_config_complete()
{
// for passthrough connectors, use the parent slot's CPU tag
if (strcmp(m_cpu.finder_tag(), finder_base::DUMMY_TAG) == 0 && dynamic_cast<device_cpc_expansion_card_interface *>(owner()) != nullptr)
{
auto parent = dynamic_cast<cpc_expansion_slot_device *>(owner()->owner());
if (parent != nullptr)
m_cpu.set_tag(parent->m_cpu);
}
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void cpc_expansion_slot_device::device_reset()
{
}
WRITE_LINE_MEMBER( cpc_expansion_slot_device::irq_w ) { m_out_irq_cb(state); }
WRITE_LINE_MEMBER( cpc_expansion_slot_device::nmi_w ) { m_out_nmi_cb(state); }
WRITE_LINE_MEMBER( cpc_expansion_slot_device::reset_w ) { m_out_reset_cb(state); }
WRITE_LINE_MEMBER( cpc_expansion_slot_device::romdis_w ) { m_out_romdis_cb(state); }
WRITE8_MEMBER( cpc_expansion_slot_device::rom_select ) { m_out_rom_select(data); }
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