summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/machine/c1541.h
blob: 7e3c7e247e6e93850fd93fb02bc0d79bfeb3779b (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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
/**********************************************************************

    Commodore 1540/1541/1541C/1541-II Single Disk Drive emulation

    Copyright MESS Team.
    Visit http://mamedev.org for licensing and usage restrictions.

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

#pragma once

#ifndef __C1541__
#define __C1541__


#include "emu.h"
#include "cpu/m6502/m6502.h"
#include "imagedev/flopdrv.h"
#include "formats/d64_dsk.h"
#include "formats/g64_dsk.h"
#include "machine/64h156.h"
#include "machine/6522via.h"
#include "machine/6821pia.h"
#include "machine/c64_bn1541.h"
#include "machine/cbmiec.h"
#include "machine/ctronics.h"



//**************************************************************************
//  MACROS / CONSTANTS
//**************************************************************************

#define C1541_TAG			"c1541"



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

// ======================> base_c1541_device

class base_c1541_device :  public device_t,
						   public device_cbm_iec_interface,
						   public device_c64_floppy_parallel_interface
{
public:
    // construction/destruction
	base_c1541_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT32 variant);

	enum
	{
		TYPE_1540 = 0,
		TYPE_1541,
		TYPE_1541C,
		TYPE_1541II,
		TYPE_SX1541,
		TYPE_FSD2,

		// extended hardware
		TYPE_1541_DOLPHIN_DOS,
		TYPE_1541_PROFESSIONAL_DOS_V1,
		TYPE_1541_PROLOGIC_DOS_CLASSIC
	};

	// not really public
	static void on_disk_change(device_image_interface &image);

	DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
	DECLARE_READ8_MEMBER( via0_pa_r );
	DECLARE_WRITE8_MEMBER( via0_pa_w );
	DECLARE_READ8_MEMBER( via0_pb_r );
	DECLARE_WRITE8_MEMBER( via0_pb_w );
	DECLARE_WRITE_LINE_MEMBER( via0_ca2_w );
	DECLARE_READ_LINE_MEMBER( atn_in_r );
	DECLARE_WRITE_LINE_MEMBER( via1_irq_w );
	DECLARE_READ8_MEMBER( via1_pb_r );
	DECLARE_WRITE8_MEMBER( via1_pb_w );
	DECLARE_WRITE_LINE_MEMBER( atn_w );
	DECLARE_WRITE_LINE_MEMBER( byte_w );

	// optional information overrides
	virtual const rom_entry *device_rom_region() const;
	virtual machine_config_constructor device_mconfig_additions() const;

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

	// device_cbm_iec_interface overrides
	virtual void cbm_iec_atn(int state);
	virtual void cbm_iec_reset(int state);

	// device_c64_floppy_parallel_interface overrides
	virtual void parallel_data_w(UINT8 data);
	virtual void parallel_strobe_w(int state);

	inline void set_iec_data();

	required_device<cpu_device> m_maincpu;
	required_device<via6522_device> m_via0;
	required_device<via6522_device> m_via1;
	required_device<c64h156_device> m_ga;
	required_device<legacy_floppy_image_device> m_image;

	// IEC bus
	int m_data_out;							// serial data out

	// interrupts
	int m_via0_irq;							// VIA #0 interrupt request
	int m_via1_irq;							// VIA #1 interrupt request

	int m_variant;
};


// ======================> c1540_device

class c1540_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1540_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> c1541_device

class c1541_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> c1541c_device

class c1541c_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

	// not really public
	DECLARE_READ8_MEMBER( via0_pa_r );
};


// ======================> c1541ii_device

class c1541ii_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541ii_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> sx1541_device

class sx1541_device :  public base_c1541_device
{
public:
    // construction/destruction
    sx1541_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> fsd2_device

class fsd2_device :  public base_c1541_device
{
public:
    // construction/destruction
    fsd2_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

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


// ======================> c1541_dolphin_dos_device

class c1541_dolphin_dos_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541_dolphin_dos_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> c1541_professional_dos_v1_device

class c1541_professional_dos_v1_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541_professional_dos_v1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};


// ======================> c1541_prologic_dos_classic_device

class c1541_prologic_dos_classic_device :  public base_c1541_device
{
public:
    // construction/destruction
    c1541_prologic_dos_classic_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

    // not really public
    DECLARE_READ8_MEMBER( pia_r );
    DECLARE_WRITE8_MEMBER( pia_w );

	DECLARE_WRITE8_MEMBER( pia_pa_w );
	DECLARE_READ8_MEMBER( pia_pb_r );
	DECLARE_WRITE8_MEMBER( pia_pb_w );

protected:
	required_device<pia6821_device> m_pia;
	required_device<centronics_device> m_centronics;
};


// device type definition
extern const device_type C1540;
extern const device_type C1541;
extern const device_type C1541C;
extern const device_type C1541II;
extern const device_type SX1541;
extern const device_type FSD2;
extern const device_type C1541_DOLPHIN_DOS;
extern const device_type C1541_PROFESSIONAL_DOS_V1;
extern const device_type C1541_PROLOGIC_DOS_CLASSIC;


// floppy interface
LEGACY_FLOPPY_OPTIONS_EXTERN( c1541 );
extern const floppy_interface c1541_floppy_interface;



#endif