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-rw-r--r--src/devices/bus/a1bus/a1bus.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/src/devices/bus/a1bus/a1bus.h b/src/devices/bus/a1bus/a1bus.h
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+++ b/src/devices/bus/a1bus/a1bus.h
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+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/***************************************************************************
+
+ a1bus.h - Apple I expansion slot and card emulation
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __A1BUS_H__
+#define __A1BUS_H__
+
+#include "emu.h"
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_A1BUS_CPU(_cputag) \
+ a1bus_device::static_set_cputag(*device, _cputag);
+
+#define MCFG_A1BUS_OUT_IRQ_CB(_devcb) \
+ devcb = &a1bus_device::set_out_irq_callback(*device, DEVCB_##_devcb);
+
+#define MCFG_A1BUS_OUT_NMI_CB(_devcb) \
+ devcb = &a1bus_device::set_out_nmi_callback(*device, DEVCB_##_devcb);
+
+#define MCFG_A1BUS_SLOT_ADD(_nbtag, _tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, A1BUS_SLOT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \
+ a1bus_slot_device::static_set_a1bus_slot(*device, _nbtag, _tag);
+#define MCFG_A1BUS_SLOT_REMOVE(_tag) \
+ MCFG_DEVICE_REMOVE(_tag)
+
+#define MCFG_A1BUS_ONBOARD_ADD(_nbtag, _tag, _dev_type, _def_inp) \
+ MCFG_DEVICE_ADD(_tag, _dev_type, 0) \
+ MCFG_DEVICE_INPUT_DEFAULTS(_def_inp) \
+ device_a1bus_card_interface::static_set_a1bus_tag(*device, _nbtag, _tag);
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class a1bus_device;
+
+class a1bus_slot_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ a1bus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ a1bus_slot_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ // device-level overrides
+ virtual void device_start();
+
+ // inline configuration
+ static void static_set_a1bus_slot(device_t &device, const char *tag, const char *slottag);
+protected:
+ // configuration
+ const char *m_a1bus_tag, *m_a1bus_slottag;
+};
+
+// device type definition
+extern const device_type A1BUS_SLOT;
+
+
+class device_a1bus_card_interface;
+// ======================> a1bus_device
+class a1bus_device : public device_t
+{
+public:
+ // construction/destruction
+ a1bus_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ a1bus_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ // inline configuration
+ static void static_set_cputag(device_t &device, const char *tag);
+ template<class _Object> static devcb_base &set_out_irq_callback(device_t &device, _Object object) { return downcast<a1bus_device &>(device).m_out_irq_cb.set_callback(object); }
+ template<class _Object> static devcb_base &set_out_nmi_callback(device_t &device, _Object object) { return downcast<a1bus_device &>(device).m_out_nmi_cb.set_callback(object); }
+
+ void add_a1bus_card(device_a1bus_card_interface *card);
+ device_a1bus_card_interface *get_a1bus_card();
+
+ void set_irq_line(int state);
+ void set_nmi_line(int state);
+
+ void install_device(offs_t start, offs_t end, read8_delegate rhandler, write8_delegate whandler);
+ void install_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror, const char *tag, UINT8 *data);
+
+ DECLARE_WRITE_LINE_MEMBER( irq_w );
+ DECLARE_WRITE_LINE_MEMBER( nmi_w );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // internal state
+ cpu_device *m_maincpu;
+
+ devcb_write_line m_out_irq_cb;
+ devcb_write_line m_out_nmi_cb;
+
+ device_a1bus_card_interface *m_device;
+ const char *m_cputag;
+};
+
+
+// device type definition
+extern const device_type A1BUS;
+
+// ======================> device_a1bus_card_interface
+
+// class representing interface-specific live a1bus card
+class device_a1bus_card_interface : public device_slot_card_interface
+{
+ friend class a1bus_device;
+public:
+ // construction/destruction
+ device_a1bus_card_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_a1bus_card_interface();
+
+ device_a1bus_card_interface *next() const { return m_next; }
+
+ void set_a1bus_device();
+
+ void raise_slot_irq() { m_a1bus->set_irq_line(ASSERT_LINE); }
+ void lower_slot_irq() { m_a1bus->set_irq_line(CLEAR_LINE); }
+ void raise_slot_nmi() { m_a1bus->set_nmi_line(ASSERT_LINE); }
+ void lower_slot_nmi() { m_a1bus->set_nmi_line(CLEAR_LINE); }
+
+ void install_device(offs_t start, offs_t end, read8_delegate rhandler, write8_delegate whandler);
+ void install_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror, char *tag, UINT8 *data);
+
+ // inline configuration
+ static void static_set_a1bus_tag(device_t &device, const char *tag, const char *slottag);
+public:
+ a1bus_device *m_a1bus;
+ const char *m_a1bus_tag, *m_a1bus_slottag;
+ device_a1bus_card_interface *m_next;
+};
+
+#endif /* __A1BUS_H__ */