summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/cbmiec/c1541.h
blob: 488ee4e438bcddf2bda863acf72d0a91263edba3 (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
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************

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

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

#ifndef MAME_BUS_CBMIEC_C1541_H
#define MAME_BUS_CBMIEC_C1541_H

#pragma once

#include "cbmiec.h"
#include "bus/c64/bn1541.h"
#include "cpu/m6502/m6502.h"
#include "machine/64h156.h"
#include "machine/6522via.h"
#include "machine/6821pia.h"
#include "machine/output_latch.h"



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

#define C1541_TAG           "c1541"



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

// ======================> c1541_device_base

class c1541_device_base :  public device_t,
						public device_cbm_iec_interface,
						public device_c64_floppy_parallel_interface
{
protected:
	// construction/destruction
	c1541_device_base(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;

	// optional information overrides
	virtual void device_add_mconfig(machine_config &config) override;
	virtual ioport_constructor device_input_ports() const override;

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

	// device_c64_floppy_parallel_interface overrides
	virtual void parallel_data_w(uint8_t data) override;
	virtual void parallel_strobe_w(int state) override;

	required_device<floppy_image_device> m_floppy;

	void c1541_mem(address_map &map);
	void c1541dd_mem(address_map &map);
	void c1541pd_mem(address_map &map);

private:
	enum
	{
		LED_POWER = 0,
		LED_ACT
	};

	inline void set_iec_data();

	DECLARE_WRITE_LINE_MEMBER( via0_irq_w );
	virtual 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_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 );

	DECLARE_FLOPPY_FORMATS( floppy_formats );

	required_device<m6502_device> m_maincpu;
	required_device<via6522_device> m_via0;
	required_device<via6522_device> m_via1;
	required_device<c64h156_device> m_ga;
	required_ioport m_address;

	// 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
};


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

class c1540_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1540_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


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

class c1541_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


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

class c1541c_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541c_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;

private:
	// not really public
	virtual DECLARE_READ8_MEMBER( via0_pa_r ) override;
};


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

class c1541ii_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541ii_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


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

class sx1541_device :  public c1541_device_base
{
public:
	// construction/destruction
	sx1541_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


// ======================> fsd1_device

class fsd1_device :  public c1541_device_base
{
public:
	// construction/destruction
	fsd1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


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

class fsd2_device :  public c1541_device_base
{
public:
	// construction/destruction
	fsd2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;

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


// ======================> csd1_device

class csd1_device :  public c1541_device_base
{
public:
	// construction/destruction
	csd1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


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

class c1541_dolphin_dos_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541_dolphin_dos_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;
};


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

class c1541_professional_dos_v1_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541_professional_dos_v1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;
};


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

class c1541_prologic_dos_classic_device :  public c1541_device_base
{
public:
	// construction/destruction
	c1541_prologic_dos_classic_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;

private:
	required_device<pia6821_device> m_pia;
	required_device<output_latch_device> m_cent_data_out;
	required_memory_region m_mmu_rom;

	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 );
	DECLARE_READ8_MEMBER( read );
	DECLARE_WRITE8_MEMBER( write );

	void c1541pdc_mem(address_map &map);
};


// ======================> indus_gt_device

class indus_gt_device :  public c1541_device_base
{
public:
	// construction/destruction
	indus_gt_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
};


// device type definition
DECLARE_DEVICE_TYPE(C1540,                      c1540_device)
DECLARE_DEVICE_TYPE(C1541,                      c1541_device)
DECLARE_DEVICE_TYPE(C1541C,                     c1541c_device)
DECLARE_DEVICE_TYPE(C1541II,                    c1541ii_device)
DECLARE_DEVICE_TYPE(SX1541,                     sx1541_device)
DECLARE_DEVICE_TYPE(FSD1,                       fsd1_device)
DECLARE_DEVICE_TYPE(FSD2,                       fsd2_device)
DECLARE_DEVICE_TYPE(CSD1,                       csd1_device)
DECLARE_DEVICE_TYPE(C1541_DOLPHIN_DOS,          c1541_dolphin_dos_device)
DECLARE_DEVICE_TYPE(C1541_PROFESSIONAL_DOS_V1,  c1541_professional_dos_v1_device)
DECLARE_DEVICE_TYPE(C1541_PROLOGIC_DOS_CLASSIC, c1541_prologic_dos_classic_device)
DECLARE_DEVICE_TYPE(INDUS_GT,                   indus_gt_device)



#endif // MAME_BUS_CBMIEC_C1541_H