summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/a2bus/a2eauxslot.h
blob: 782ff3dfb2d86d288ebe69ad0cba1241f4c45e06 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
// license:BSD-3-Clause
// copyright-holders:R. Belmont
/***************************************************************************

  a2eauxslot.h - Apple IIe auxiliary slot and card emulation

  by R. Belmont

***************************************************************************/

#ifndef MAME_BUS_A2BUS_A2EAUXSLOT_H
#define MAME_BUS_A2BUS_A2EAUXSLOT_H

#pragma once

#include "a2bus.h"

//**************************************************************************
//  INTERFACE CONFIGURATION MACROS
//**************************************************************************

#define MCFG_A2EAUXSLOT_CPU(_cputag) \
	downcast<a2eauxslot_device &>(*device).set_cputag(_cputag);

#define MCFG_A2EAUXSLOT_OUT_IRQ_CB(_devcb) \
	downcast<a2eauxslot_device &>(*device).set_out_irq_callback(DEVCB_##_devcb);

#define MCFG_A2EAUXSLOT_OUT_NMI_CB(_devcb) \
	downcast<a2eauxslot_device &>(*device).set_out_nmi_callback(DEVCB_##_devcb);

#define MCFG_A2EAUXSLOT_SLOT_ADD(_nbtag, _tag, _slot_intf, _def_slot) \
	MCFG_DEVICE_ADD(_tag, A2EAUXSLOT_SLOT, 0) \
	MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \
	downcast<a2eauxslot_slot_device &>(*device).set_a2eauxslot_slot(_nbtag, _tag);


//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

class a2eauxslot_device;

class a2eauxslot_slot_device : public device_t,
							public device_slot_interface
{
public:
	// construction/destruction
	a2eauxslot_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	// device-level overrides
	virtual void device_start() override;

	// inline configuration
	void set_a2eauxslot_slot(const char *tag, const char *slottag) { m_a2eauxslot_tag = tag; m_a2eauxslot_slottag = slottag; }

protected:
	a2eauxslot_slot_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);

	// configuration
	const char *m_a2eauxslot_tag, *m_a2eauxslot_slottag;
};

// device type definition
DECLARE_DEVICE_TYPE(A2EAUXSLOT_SLOT, a2eauxslot_slot_device)


class device_a2eauxslot_card_interface;

// ======================> a2eauxslot_device
class a2eauxslot_device : public device_t
{
public:
	// construction/destruction
	a2eauxslot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	// inline configuration
	void set_cputag(const char *tag) { m_cputag = tag; }
	template <class Object> devcb_base &set_out_irq_callback(Object &&cb) { return m_out_irq_cb.set_callback(std::forward<Object>(cb)); }
	template <class Object> devcb_base &set_out_nmi_callback(Object &&cb) { return m_out_nmi_cb.set_callback(std::forward<Object>(cb)); }

	void add_a2eauxslot_card(device_a2eauxslot_card_interface *card);
	device_a2eauxslot_card_interface *get_a2eauxslot_card();

	void set_irq_line(int state);
	void set_nmi_line(int state);

	DECLARE_WRITE_LINE_MEMBER( irq_w );
	DECLARE_WRITE_LINE_MEMBER( nmi_w );

protected:
	a2eauxslot_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;
	virtual void device_reset() override;

	// internal state
	cpu_device   *m_maincpu;

	devcb_write_line    m_out_irq_cb;
	devcb_write_line    m_out_nmi_cb;

	device_a2eauxslot_card_interface *m_device;
	const char *m_cputag;
};


// device type definition
DECLARE_DEVICE_TYPE(A2EAUXSLOT, a2eauxslot_device)

// ======================> device_a2eauxslot_card_interface

// class representing interface-specific live a2eauxslot card
class device_a2eauxslot_card_interface : public device_slot_card_interface
{
	friend class a2eauxslot_device;
public:
	// construction/destruction
	virtual ~device_a2eauxslot_card_interface();

	virtual uint8_t read_auxram(uint16_t offset) { printf("a2eauxslot: unhandled auxram read @ %04x\n", offset); return 0xff; }
	virtual void write_auxram(uint16_t offset, uint8_t data) { printf("a2eauxslot: unhandled auxram write %02x @ %04x\n", data, offset); }
	virtual void write_c07x(address_space &space, uint8_t offset, uint8_t data) {}
	virtual uint8_t *get_vram_ptr() = 0;
	virtual uint8_t *get_auxbank_ptr() = 0;
	virtual bool allow_dhr() { return true; }

	device_a2eauxslot_card_interface *next() const { return m_next; }

	void set_a2eauxslot_device();

	void raise_slot_irq() { m_a2eauxslot->set_irq_line(ASSERT_LINE); }
	void lower_slot_irq() { m_a2eauxslot->set_irq_line(CLEAR_LINE); }
	void raise_slot_nmi() { m_a2eauxslot->set_nmi_line(ASSERT_LINE); }
	void lower_slot_nmi() { m_a2eauxslot->set_nmi_line(CLEAR_LINE); }

	// inline configuration
	void set_a2eauxslot_tag(const char *tag, const char *slottag) { m_a2eauxslot_tag = tag; m_a2eauxslot_slottag = slottag; }

protected:
	device_a2eauxslot_card_interface(const machine_config &mconfig, device_t &device);

	a2eauxslot_device  *m_a2eauxslot;
	const char *m_a2eauxslot_tag, *m_a2eauxslot_slottag;
	int m_slot;
	device_a2eauxslot_card_interface *m_next;
};

#endif  // MAME_BUS_A2BUS_A2EAUXSLOT_H