summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/machine/hds200_kbd.h
blob: bce33e9624132882c9ed82c9baf100fd242e31f8 (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
// license: BSD-3-Clause
// copyright-holders: Dirk Best
/***************************************************************************

    HDS200 Keyboard (HLE)

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

#ifndef MAME_MACHINE_HDS200_KBD_H
#define MAME_MACHINE_HDS200_KBD_H

#pragma once

#include "machine/keyboard.h"
#include "sound/beep.h"
#include "diserial.h"


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

// ======================> hds200_kbd_hle_device

class hds200_kbd_hle_device : public device_t,
								public device_buffered_serial_interface<16>,
								protected device_matrix_keyboard_interface<6>
{
public:
	// construction/destruction
	hds200_kbd_hle_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);

	// callbacks
	auto tx_handler() { return m_tx_handler.bind(); }

	// from host
	void rx_w(int state);

protected:
	// device_t overrides
	virtual ioport_constructor device_input_ports() const override;
	virtual void device_add_mconfig(machine_config &config) override;
	virtual void device_start() override;
	virtual void device_reset() override;

	// device_buffered_serial_interface overrides
	virtual void tra_callback() override;
	virtual void received_byte(uint8_t byte) override;

	// device_matrix_keyboard_interface overrides
	virtual void key_make(uint8_t row, uint8_t column) override;
	virtual void key_break(uint8_t row, uint8_t column) override;
	virtual void key_repeat(uint8_t row, uint8_t column) override;

private:
	required_device<beep_device> m_bell;
	required_ioport m_modifiers;
	devcb_write_line m_tx_handler;

	uint8_t translate(uint8_t row, uint8_t column);
};

// device type definition
DECLARE_DEVICE_TYPE(HDS200_KBD_HLE, hds200_kbd_hle_device)

#endif // MAME_MACHINE_HDS200_KBD_H