summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/cpc/hd20.cpp
blob: c13ffca6b4b994d839ad05c7afb86fc9ec79d924 (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
// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*

    Dobbertin HD20 hard disk

*/

#include "emu.h"
#include "hd20.h"

//**************************************************************************
//  DEVICE DEFINITIONS
//**************************************************************************

DEFINE_DEVICE_TYPE(CPC_HD20, cpc_hd20_device, "cpc_hd20", "Dobbertin HD20")

void cpc_hd20_device::device_add_mconfig(machine_config &config)
{
	ST11M_HDC(config, m_hdc,0);
	m_hdc->irq_handler().set(FUNC(cpc_hd20_device::irq_w));
	HARDDISK(config, "hdc:primary");
	// no pass-through (?)
}


ROM_START( cpc_hd20 )
	ROM_REGION( 0x4000, "exp_rom", 0 )
	ROM_DEFAULT_BIOS("xddos210")

	ROM_SYSTEM_BIOS( 0, "xddos210", "X-DDOS 2.10" )
	ROMX_LOAD( "xddos210.rom",   0x0000, 0x4000, CRC(5477fdb4) SHA1(2f1bd4d6e2d2e62818b01e6e7a26488362a7a8ee), ROM_BIOS(0) )
	ROM_SYSTEM_BIOS( 1, "xddos200", "X-DDOS 2.00" )
	ROMX_LOAD( "x-ddos20.rom",   0x0000, 0x4000, CRC(c2d9cc03) SHA1(8a20788be5f957e84e849c226aa97b55b2a3aab9), ROM_BIOS(1) )
ROM_END

const tiny_rom_entry *cpc_hd20_device::device_rom_region() const
{
	return ROM_NAME( cpc_hd20 );
}

//**************************************************************************
//  LIVE DEVICE
//**************************************************************************

cpc_hd20_device::cpc_hd20_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
	device_t(mconfig, CPC_HD20, tag, owner, clock),
	device_cpc_expansion_card_interface(mconfig, *this), m_slot(nullptr),
	m_hdc(*this,"hdc")
{
}

//-------------------------------------------------
//  device_start - device-specific startup
//-------------------------------------------------

void cpc_hd20_device::device_start()
{
	m_slot = dynamic_cast<cpc_expansion_slot_device *>(owner());
	address_space &space = m_slot->cpu().space(AS_IO);
	space.install_write_handler(0xfbe0,0xfbe4,write8_delegate(FUNC(cpc_hd20_device::hdc_w),this));
	space.install_read_handler(0xfbe0,0xfbe4,read8_delegate(FUNC(cpc_hd20_device::hdc_r),this));
}

//-------------------------------------------------
//  device_reset - device-specific reset
//-------------------------------------------------

void cpc_hd20_device::device_reset()
{
	// TODO
}

READ8_MEMBER(cpc_hd20_device::hdc_r)
{
	uint8_t ret = 0x00;

	switch(offset)
	{
	case 0:
		ret = m_hdc->data_r();
		break;
	case 1:
		ret = m_hdc->status_r();
		break;
	case 2:
		m_hdc->set_ready();
		ret = 0x01;
		break;
	case 4:
		m_hdc->reset_w(0);  // reset on read also?
		break;
	}

	return ret;
}

WRITE8_MEMBER(cpc_hd20_device::hdc_w)
{
	switch(offset)
	{
	case 0:
		m_hdc->data_w(data);
		break;
	case 1:
		m_hdc->reset_w(data);
		break;
	case 2:
		m_hdc->select_w(data);
		break;
	case 3:
		m_hdc->control_w(data);
		break;
	case 4:
		m_hdc->reset_w(data);
		break;
	}
}

WRITE_LINE_MEMBER(cpc_hd20_device::irq_w)
{
//  if(state)
//      m_hdc->set_ready();
}