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// license:GPL-2.0+
// copyright-holders:Jonathan Edwards
/***************************************************************************
bml3bus.h - Hitachi MB-6890 slot bus and card emulation
Adapted from a2bus by Jonathan Edwards
***************************************************************************/
#ifndef MAME_BUS_BML3_BML3BUS_H
#define MAME_BUS_BML3_BML3BUS_H
#pragma once
#define BML3BUS_MAX_SLOTS 6
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class bml3bus_device;
class device_bml3bus_card_interface;
class bml3bus_slot_device : public device_t,
public device_single_card_slot_interface<device_bml3bus_card_interface>
{
public:
// construction/destruction
template <typename T, typename U>
bml3bus_slot_device(machine_config const &mconfig, const char *tag, device_t *owner, T &&nbtag, U &&opts, const char *dflt)
: bml3bus_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
set_bml3bus_slot(std::forward<T>(nbtag), tag);
}
bml3bus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
// inline configuration
template <typename T>
void set_bml3bus_slot(T &&tag, const char *slottag)
{
m_bml3bus.set_tag(std::forward<T>(tag));
m_bml3bus_slottag = slottag;
}
protected:
bml3bus_slot_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override ATTR_COLD;
// configuration
required_device<bml3bus_device> m_bml3bus;
const char *m_bml3bus_slottag;
};
// device type definition
DECLARE_DEVICE_TYPE(BML3BUS_SLOT, bml3bus_slot_device)
// ======================> bml3bus_device
class bml3bus_device : public device_t
{
friend class device_bml3bus_card_interface;
public:
// construction/destruction
bml3bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// inline configuration
auto nmi_callback() { return m_out_nmi_cb.bind(); }
auto irq_callback() { return m_out_irq_cb.bind(); }
auto firq_callback() { return m_out_firq_cb.bind(); }
device_bml3bus_card_interface *get_bml3bus_card(int slot);
void map_exrom(address_space_installer &space);
void map_io(address_space_installer &space);
void nmi_w(int state);
void irq_w(int state);
void firq_w(int state);
protected:
bml3bus_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
void add_bml3bus_card(int slot, device_bml3bus_card_interface &card);
void set_nmi_line(int state);
void set_irq_line(int state);
void set_firq_line(int state);
// line callbacks
devcb_write_line m_out_nmi_cb;
devcb_write_line m_out_irq_cb;
devcb_write_line m_out_firq_cb;
device_bml3bus_card_interface *m_device_list[BML3BUS_MAX_SLOTS];
};
// device type definition
DECLARE_DEVICE_TYPE(BML3BUS, bml3bus_device)
// ======================> device_bml3bus_card_interface
// class representing interface-specific live bml3bus card
class device_bml3bus_card_interface : public device_interface
{
friend class bml3bus_device;
public:
// construction/destruction
virtual ~device_bml3bus_card_interface();
// inline configuration
void set_bml3bus(bml3bus_device &bus, const char *slottag);
protected:
virtual void interface_pre_start() override;
virtual void map_exrom(address_space_installer &space) { }
virtual void map_io(address_space_installer &space) { }
void raise_slot_nmi() { m_bml3bus->set_nmi_line(ASSERT_LINE); }
void lower_slot_nmi() { m_bml3bus->set_nmi_line(CLEAR_LINE); }
void raise_slot_irq() { m_bml3bus->set_irq_line(ASSERT_LINE); }
void lower_slot_irq() { m_bml3bus->set_irq_line(CLEAR_LINE); }
void raise_slot_firq() { m_bml3bus->set_firq_line(ASSERT_LINE); }
void lower_slot_firq() { m_bml3bus->set_firq_line(CLEAR_LINE); }
void nmi_w(int state) { m_bml3bus->set_nmi_line(state); }
void irq_w(int state) { m_bml3bus->set_irq_line(state); }
void firq_w(int state) { m_bml3bus->set_firq_line(state); }
device_bml3bus_card_interface(const machine_config &mconfig, device_t &device);
private:
bml3bus_device *m_bml3bus;
int m_slot;
};
#endif // MAME_BUS_BML3_BML3BUS_H
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