summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/amiga/keyboard/keyboard.h
blob: 3458ab5691202755a3c7c81f92663df7effd07a2 (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
// license: GPL-2.0+
// copyright-holders: Dirk Best
/***************************************************************************

    Amiga Keyboard Interface

    Serial data and reset control

    - KDAT (serial data)
    - KCLK (serial clock)
    - KRST (reset output)

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

#ifndef MAME_BUS_AMIGA_KEYBOARD_H
#define MAME_BUS_AMIGA_KEYBOARD_H

#pragma once



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

class device_amiga_keyboard_interface;

// ======================> amiga_keyboard_bus_device

class amiga_keyboard_bus_device : public device_t, public device_slot_interface
{
public:
	// construction/destruction
	template <typename T>
	amiga_keyboard_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&opts, const char *dflt)
		: amiga_keyboard_bus_device(mconfig, tag, owner, 0)
	{
		option_reset();
		opts(*this);
		set_default_option(dflt);
		set_fixed(false);
	}
	amiga_keyboard_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0U);
	virtual ~amiga_keyboard_bus_device();

	// callbacks
	auto kclk_handler() { return m_kclk_handler.bind(); }
	auto kdat_handler() { return m_kdat_handler.bind(); }
	auto krst_handler() { return m_krst_handler.bind(); }

	// called from keyboard
	DECLARE_WRITE_LINE_MEMBER(kclk_w) { m_kclk_handler(state); }
	DECLARE_WRITE_LINE_MEMBER(kdat_w) { m_kdat_handler(state); }
	DECLARE_WRITE_LINE_MEMBER(krst_w) { m_krst_handler(state); }

	// called from host
	DECLARE_WRITE_LINE_MEMBER(kdat_in_w);

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

private:
	device_amiga_keyboard_interface *m_kbd;

	devcb_write_line m_kclk_handler;
	devcb_write_line m_kdat_handler;
	devcb_write_line m_krst_handler;
};

// ======================> device_amiga_keyboard_interface

class device_amiga_keyboard_interface : public device_slot_card_interface
{
public:
	// construction/destruction
	virtual ~device_amiga_keyboard_interface();

	virtual DECLARE_WRITE_LINE_MEMBER(kdat_w) = 0;

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

	amiga_keyboard_bus_device *m_host;
};

// device type definition
DECLARE_DEVICE_TYPE(AMIGA_KEYBOARD_INTERFACE, amiga_keyboard_bus_device)

// supported devices
void amiga_keyboard_devices(device_slot_interface &device);
void a500_keyboard_devices(device_slot_interface &device);
void a600_keyboard_devices(device_slot_interface &device);

#endif // MAME_BUS_AMIGA_KEYBOARD_H