File: sdebus.cpp

package info (click to toggle)
ponyprog 3.0.2%2Bds-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 3,752 kB
  • sloc: cpp: 33,187; python: 981; sh: 507; makefile: 36
file content (264 lines) | stat: -rw-r--r-- 5,685 bytes parent folder | download
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
//=========================================================================//
//                                                                         //
//  PonyProg - Serial Device Programmer                                    //
//                                                                         //
//  Copyright (C) 1997-2019   Claudio Lanconelli                           //
//                                                                         //
//  http://ponyprog.sourceforge.net                                        //
//                                                                         //
//-------------------------------------------------------------------------//
//                                                                         //
// This program is free software; you can redistribute it and/or           //
// modify it under the terms of the GNU  General Public License            //
// as published by the Free Software Foundation; either version2 of        //
// the License, or (at your option) any later version.                     //
//                                                                         //
// This program is distributed in the hope that it will be useful,         //
// but WITHOUT ANY WARRANTY; without even the implied warranty of          //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       //
// General Public License for more details.                                //
//                                                                         //
// You should have received a copy of the GNU  General Public License      //
// along with this program (see LICENSE);     if not, write to the         //
// Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. //
//                                                                         //
//=========================================================================//

#include "types.h"
#include "sdebus.h"
#include "errcode.h"

#include <QDebug>
#include <QtCore>

#include "e2cmdw.h"

#ifdef Q_OS_LINUX
#  include <unistd.h>
#else
#  ifdef        __BORLANDC__
#    define     __inline__
#  else // _MICROSOFT_ VC++
#    define     __inline__ __inline
#    define _export
#  endif
#endif

// Costruttore
Sde2506Bus::Sde2506Bus(BusInterface *ptr)
	: BusIO(ptr)
{
	qDebug() << "Sde2506Bus::Sde2506Bus()";
}

// Distruttore
Sde2506Bus::~Sde2506Bus()
{
	qDebug() <<  "Sde2506Bus::~Sde2506Bus()";

	//      Close();
}

void Sde2506Bus::SetDelay()
{
	int val = E2Profile::GetSDESpeed();
	int n;

	switch (val)
	{
	case TURBO:
		n = 1;         // as fast as your PC can
		break;

	case FAST:
		n = 5;
		break;

	case SLOW:
		n = 30;
		break;

	case VERYSLOW:
		n = 100;
		break;

	case ULTRASLOW:
		n = 1000;
		break;

	default:
		n = 10;         //Default (< 100KHz)
		break;
	}

	BusIO::SetDelay(n);

	qDebug() << "Sde2506Bus::SetDelay() = " << n;
}

int Sde2506Bus::SendDataBit(int b)
{
	clearCLK();             //si assicura che SCK low
	WaitUsec(shot_delay);
	setCLK();
	bitDI(b);
	WaitUsec(shot_delay);
	clearCLK();             //device latch data bit now!

	return OK;
}

// ritorna un numero negativo se c'e` un errore, altrimenti 0 o 1
int Sde2506Bus::RecDataBit()
{
	register uint8_t b;

	clearCLK();             //the eeprom set data now
	WaitUsec(shot_delay);
	setCLK();
	b = getDO();
	WaitUsec(shot_delay);   //hold time
	clearCLK();

	return b;
}

// OK, ora ci alziamo di un livello: operiamo sul byte
int Sde2506Bus::SendDataWord(int wo, int wlen)
{
	int k;

	clearCLK();

	//From LSB to MSB
	for (k = 0; k < wlen; k++)
	{
		SendDataBit(wo & (1 << k));
	}

	WaitUsec(shot_delay);
	setDI();

	return OK;
}

int Sde2506Bus::RecDataWord(int wlen)
{
	int k, val = 0;

	clearCLK();
	setDI();

	for (k = 0; k < wlen; k++)
		if (RecDataBit())
		{
			val |= 1 << k;
		}

	return val;
}

int Sde2506Bus::WaitReadyAfterWrite(long timeout)
{
	WaitMsec(15);

	return OK;
}

int Sde2506Bus::Reset(void)
{
	qDebug() << "Sde2506Bus::Reset()";

	SetDelay();

	clearCLK();             //clock = 0
	setDI();                //data = 1
	setCE();                //CE = 1

	return OK;
}

long Sde2506Bus::Read(int addr, uint8_t *data, long length, int page_size)
{
	qDebug() << "Sde2506Bus::Read(" << (hex) << addr << ", " << data << ", " << (dec) << length << ")";
	ReadStart();

	long len;

	for (len = 0; len < length; len++)
	{
		setCE();

		//Send command opcode
		SendAddress(addr++);
		SendControlBit(0);              //SB = 0 --> Read op
		WaitUsec(5);
		clearCE();

		SendDataBit(1);
		*data++ = RecDataWord();

		WaitUsec(shot_delay + 1);
		setCE();

		if ((len % 4) == 0)
		{
			if (ReadProgress(len * 100 / length))
			{
				break;
			}
		}
	}

	ReadEnd();
	qDebug() << "Sde2506Bus::Read() = " << len;

	return len;
}

long Sde2506Bus::Write(int addr, uint8_t const *data, long length, int page_size)
{
	long curaddr;

	WriteStart();

	for (curaddr = addr; curaddr < length; curaddr++)
	{
		setCE();

		//Send command opcode
		SendDataWord(*data++);
		SendAddress(curaddr);

		SendControlBit(1);                      //SB = 1 --> Write/Erase op
		WaitUsec(5);
		clearCE();

		SendDataBit(1);                         //Start erase
		setDI();
		WaitReadyAfterWrite();
		setCE();                                        //End erase

		WaitUsec(shot_delay / 2 + 1);   //perform write
		clearDI();
		WaitUsec(shot_delay);
		clearCE();

		SendDataBit(0);                 //Start write
		setDI();
		WaitReadyAfterWrite();
		setCE();                                //End write

		if ((curaddr & 1))
		{
			if (WriteProgress(curaddr * 100 / length))
			{
				break;
			}
		}
	}

	WriteEnd();

	return curaddr;
}