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es519xx: apply the proper fixed factor in duty cycle mode
[libsigrok.git] / hardware / common / dmm / es519xx.c
CommitLineData
c01bdebc
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
5 * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/*
23 * Cyrustek ES519XX protocol parser.
24 *
25 * Communication parameters: Unidirectional, 2400/7o1 or 19230/7o1
26 */
27
28#include <string.h>
29#include <ctype.h>
30#include <math.h>
31#include <glib.h>
32#include "libsigrok.h"
33#include "libsigrok-internal.h"
34
3544f848 35#define LOG_PREFIX "es519xx"
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36
37/* Factors for the respective measurement mode (0 means "invalid"). */
4d2630e6 38static const float factors_2400_11b[9][8] = {
c01bdebc
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39 {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0 }, /* V */
40 {1e-7, 1e-6, 0, 0, 0, 0, 0, 0 }, /* uA */
41 {1e-5, 1e-4, 0, 0, 0, 0, 0, 0 }, /* mA */
42 {1e-2, 0, 0, 0, 0, 0, 0, 0 }, /* A */
43 {1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 0, 0 }, /* RPM */
44 {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0 }, /* Resistance */
45 {1, 1e1, 1e2, 1e3, 1e4, 1e5, 0, 0 }, /* Frequency */
46 {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */
4d2630e6 47 {1e-3, 0, 0, 0, 0, 0, 0, 0 }, /* Diode */
c01bdebc 48};
4d2630e6 49static const float factors_19200_11b_5digits[9][8] = {
c01bdebc
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50 {1e-4, 1e-3, 1e-2, 1e-1, 1e-5, 0, 0, 0}, /* V */
51 {1e-8, 1e-7, 0, 0, 0, 0, 0, 0}, /* uA */
52 {1e-6, 1e-5, 0, 0, 0, 0, 0, 0}, /* mA */
53 {0, 1e-3, 0, 0, 0, 0, 0, 0}, /* A */
54 {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0}, /* Manual A */
55 {1e-2, 1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Resistance */
56 {1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Frequency */
57 {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */
4d2630e6 58 {1e-4, 0, 0, 0, 0, 0, 0, 0 }, /* Diode */
c01bdebc 59};
4d2630e6 60static const float factors_19200_11b_clampmeter[9][8] = {
c01bdebc
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61 {1e-3, 1e-2, 1e-1, 1, 1e-4, 0, 0, 0}, /* V */
62 {1e-7, 1e-6, 0, 0, 0, 0, 0, 0}, /* uA */
63 {1e-5, 1e-4, 0, 0, 0, 0, 0, 0}, /* mA */
64 {1e-2, 0, 0, 0, 0, 0, 0, 0}, /* A */
65 {1e-3, 1e-2, 1e-1, 1, 0, 0, 0, 0}, /* Manual A */
66 {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0}, /* Resistance */
67 {1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Frequency */
68 {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */
4d2630e6 69 {1e-3, 0, 0, 0, 0, 0, 0, 0 }, /* Diode */
c01bdebc 70};
4d2630e6 71static const float factors_19200_11b[9][8] = {
c01bdebc
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72 {1e-3, 1e-2, 1e-1, 1, 1e-4, 0, 0, 0}, /* V */
73 {1e-7, 1e-6, 0, 0, 0, 0, 0, 0}, /* uA */
74 {1e-5, 1e-4, 0, 0, 0, 0, 0, 0}, /* mA */
75 {1e-3, 1e-2, 0, 0, 0, 0, 0, 0}, /* A */
76 {0, 0, 0, 0, 0, 0, 0, 0}, /* Manual A */
77 {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0}, /* Resistance */
78 {1, 1e1, 1e2, 1e3, 1e4, 0, 0, 0}, /* Frequency */
79 {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 0}, /* Capacitance */
4d2630e6 80 {1e-3, 0, 0, 0, 0, 0, 0, 0}, /* Diode */
c01bdebc 81};
4d2630e6 82static const float factors_19200_14b[9][8] = {
c01bdebc
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83 {1e-4, 1e-3, 1e-2, 1e-1, 1e-5, 0, 0, 0}, /* V */
84 {1e-8, 1e-7, 0, 0, 0, 0, 0, 0}, /* uA */
85 {1e-6, 1e-5, 0, 0, 0, 0, 0, 0}, /* mA */
86 {1e-3, 0, 0, 0, 0, 0, 0, 0}, /* A */
87 {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0}, /* Manual A */
88 {1e-2, 1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Resistance */
89 {1e-2, 1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4}, /* Frequency */
90 {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */
4d2630e6 91 {1e-4, 0, 0, 0, 0, 0, 0, 0 }, /* Diode */
c01bdebc
AJ
92};
93
94static int parse_value(const uint8_t *buf, struct es519xx_info *info,
95 float *result)
96{
72e1672f 97 int i, intval, num_digits;
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98 float floatval;
99
72e1672f
UH
100 num_digits = 4 + ((info->packet_size == 14) ? 1 : 0);
101
c01bdebc
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102 /* Bytes 1-4 (or 5): Value (4 or 5 decimal digits) */
103 if (info->is_ol) {
104 sr_spew("Over limit.");
105 *result = INFINITY;
106 return SR_OK;
107 } else if (info->is_ul) {
108 sr_spew("Under limit.");
109 *result = INFINITY;
110 return SR_OK;
111 } else if (!isdigit(buf[1]) || !isdigit(buf[2]) ||
112 !isdigit(buf[3]) || !isdigit(buf[4]) ||
72e1672f 113 (num_digits == 5 && !isdigit(buf[5]))) {
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114 sr_err("Value contained invalid digits: %02x %02x %02x %02x "
115 "(%c %c %c %c).", buf[1], buf[2], buf[3], buf[4],
116 buf[1], buf[2], buf[3], buf[4]);
117 return SR_ERR;
118 }
72e1672f
UH
119 intval = (info->is_digit4) ? 1 : 0;
120 for (i = 0; i < num_digits; i++)
121 intval = 10 * intval + (buf[i + 1] - '0');
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122
123 /* Apply sign. */
124 intval *= info->is_sign ? -1 : 1;
125
126 floatval = (float)intval;
127
128 /* Note: The decimal point position will be parsed later. */
129
130 sr_spew("The display value is %f.", floatval);
131
132 *result = floatval;
72e1672f 133
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134 return SR_OK;
135}
136
137static int parse_range(uint8_t b, float *floatval,
138 const struct es519xx_info *info)
139{
72e1672f 140 int idx, mode;
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141 float factor = 0;
142
72e1672f
UH
143 idx = b - '0';
144
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AJ
145 if (idx < 0 || idx > 7) {
146 sr_dbg("Invalid range byte / index: 0x%02x / 0x%02x.", b, idx);
147 return SR_ERR;
148 }
149
150 /* Parse range byte (depends on the measurement mode). */
151 if (info->is_voltage)
152 mode = 0; /* V */
153 else if (info->is_current && info->is_micro)
154 mode = 1; /* uA */
155 else if (info->is_current && info->is_milli)
156 mode = 2; /* mA */
157 else if (info->is_current && info->is_auto)
158 mode = 3; /* A */
72e1672f 159 else if (info->is_current && !info->is_auto)
c01bdebc
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160 mode = 4; /* Manual A */
161 else if (info->is_rpm)
72e1672f 162 /* Not a typo, it's really index 4 in factors_2400_11b[][]. */
c01bdebc 163 mode = 4; /* RPM */
a7c01629 164 else if (info->is_resistance || info->is_continuity)
c01bdebc
AJ
165 mode = 5; /* Resistance */
166 else if (info->is_frequency)
167 mode = 6; /* Frequency */
168 else if (info->is_capacitance)
169 mode = 7; /* Capacitance */
4d2630e6
AJ
170 else if (info->is_diode)
171 mode = 8; /* Diode */
c3e871dc
AJ
172 else if (info->is_duty_cycle)
173 mode = 0; /* Dummy, unused */
c01bdebc
AJ
174 else {
175 sr_dbg("Invalid mode, range byte was: 0x%02x.", b);
176 return SR_ERR;
177 }
178
179 if (info->is_vbar) {
180 if (info->is_micro)
72e1672f 181 factor = (const float[]){1e-1, 1}[idx];
c01bdebc 182 else if (info->is_milli)
72e1672f 183 factor = (const float[]){1e-2, 1e-1}[idx];
c01bdebc 184 }
c3e871dc
AJ
185 else if (info->is_duty_cycle)
186 factor = 1e-1;
c01bdebc 187 else if (info->baudrate == 2400)
72e1672f 188 factor = factors_2400_11b[mode][idx];
c01bdebc 189 else if (info->fivedigits)
72e1672f 190 factor = factors_19200_11b_5digits[mode][idx];
c01bdebc 191 else if (info->clampmeter)
72e1672f 192 factor = factors_19200_11b_clampmeter[mode][idx];
c01bdebc 193 else if (info->packet_size == 11)
72e1672f 194 factor = factors_19200_11b[mode][idx];
c01bdebc 195 else if (info->packet_size == 14)
72e1672f 196 factor = factors_19200_14b[mode][idx];
c01bdebc
AJ
197
198 if (factor == 0) {
199 sr_dbg("Invalid factor for range byte: 0x%02x.", b);
200 return SR_ERR;
201 }
202
203 /* Apply respective factor (mode-dependent) on the value. */
204 *floatval *= factor;
205 sr_dbg("Applying factor %f, new value is %f.", factor, *floatval);
206
207 return SR_OK;
208}
209
210static void parse_flags(const uint8_t *buf, struct es519xx_info *info)
211{
72e1672f 212 int function, status;
c01bdebc 213
72e1672f
UH
214 function = 5 + ((info->packet_size == 14) ? 1 : 0);
215 status = function + 1;
216
217 /* Status byte */
c01bdebc
AJ
218 if (info->alt_functions) {
219 info->is_sign = (buf[status] & (1 << 3)) != 0;
72e1672f
UH
220 info->is_batt = (buf[status] & (1 << 2)) != 0; /* Bat. low */
221 info->is_ol = (buf[status] & (1 << 1)) != 0; /* Overflow */
222 info->is_ol |= (buf[status] & (1 << 0)) != 0; /* Overflow */
c01bdebc
AJ
223 } else {
224 info->is_judge = (buf[status] & (1 << 3)) != 0;
225 info->is_sign = (buf[status] & (1 << 2)) != 0;
72e1672f
UH
226 info->is_batt = (buf[status] & (1 << 1)) != 0; /* Bat. low */
227 info->is_ol = (buf[status] & (1 << 0)) != 0; /* Overflow */
c01bdebc
AJ
228 }
229
230 if (info->packet_size == 14) {
72e1672f
UH
231 /* Option 1 byte */
232 info->is_max = (buf[8] & (1 << 3)) != 0;
233 info->is_min = (buf[8] & (1 << 2)) != 0;
234 info->is_rel = (buf[8] & (1 << 1)) != 0;
235 info->is_rmr = (buf[8] & (1 << 0)) != 0;
236
237 /* Option 2 byte */
238 info->is_ul = (buf[9] & (1 << 3)) != 0; /* Underflow */
239 info->is_pmax = (buf[9] & (1 << 2)) != 0; /* Max. peak value */
240 info->is_pmin = (buf[9] & (1 << 1)) != 0; /* Min. peak value */
241
242 /* Option 3 byte */
243 info->is_dc = (buf[10] & (1 << 3)) != 0;
244 info->is_ac = (buf[10] & (1 << 2)) != 0;
245 info->is_auto = (buf[10] & (1 << 1)) != 0;
246 info->is_vahz = (buf[10] & (1 << 0)) != 0;
247
248 /* LPF: Low-pass filter(s) */
c01bdebc 249 if (info->selectable_lpf) {
72e1672f
UH
250 /* Option 4 byte */
251 info->is_hold = (buf[11] & (1 << 3)) != 0;
252 info->is_vbar = (buf[11] & (1 << 2)) != 0;
253 info->is_lpf1 = (buf[11] & (1 << 1)) != 0;
254 info->is_lpf0 = (buf[11] & (1 << 0)) != 0;
c01bdebc 255 } else {
72e1672f
UH
256 /* Option 4 byte */
257 info->is_vbar = (buf[11] & (1 << 2)) != 0;
258 info->is_hold = (buf[11] & (1 << 1)) != 0;
259 info->is_lpf1 = (buf[11] & (1 << 0)) != 0;
c01bdebc
AJ
260 }
261 } else if (info->alt_functions) {
72e1672f
UH
262 /* Option 2 byte */
263 info->is_dc = (buf[8] & (1 << 3)) != 0;
264 info->is_auto = (buf[8] & (1 << 2)) != 0;
265 info->is_apo = (buf[8] & (1 << 0)) != 0;
266 info->is_ac = !info->is_dc;
c01bdebc 267 } else {
72e1672f 268 /* Option 1 byte */
c01bdebc
AJ
269 if (info->baudrate == 2400) {
270 info->is_pmax = (buf[7] & (1 << 3)) != 0;
271 info->is_pmin = (buf[7] & (1 << 2)) != 0;
272 info->is_vahz = (buf[7] & (1 << 0)) != 0;
273 } else if (info->fivedigits) {
274 info->is_ul = (buf[7] & (1 << 3)) != 0;
275 info->is_pmax = (buf[7] & (1 << 2)) != 0;
276 info->is_pmin = (buf[7] & (1 << 1)) != 0;
277 info->is_digit4 = (buf[7] & (1 << 0)) != 0;
278 } else if (info->clampmeter) {
279 info->is_ul = (buf[7] & (1 << 3)) != 0;
280 info->is_vasel = (buf[7] & (1 << 2)) != 0;
281 info->is_vbar = (buf[7] & (1 << 1)) != 0;
282 } else {
283 info->is_hold = (buf[7] & (1 << 3)) != 0;
284 info->is_max = (buf[7] & (1 << 2)) != 0;
285 info->is_min = (buf[7] & (1 << 1)) != 0;
286 }
287
72e1672f
UH
288 /* Option 2 byte */
289 info->is_dc = (buf[8] & (1 << 3)) != 0;
290 info->is_ac = (buf[8] & (1 << 2)) != 0;
291 info->is_auto = (buf[8] & (1 << 1)) != 0;
c01bdebc
AJ
292 if (info->baudrate == 2400)
293 info->is_apo = (buf[8] & (1 << 0)) != 0;
294 else
295 info->is_vahz = (buf[8] & (1 << 0)) != 0;
296 }
297
72e1672f 298 /* Function byte */
c01bdebc
AJ
299 if (info->alt_functions) {
300 switch (buf[function]) {
301 case 0x3f: /* A */
302 info->is_current = info->is_auto = TRUE;
303 break;
304 case 0x3e: /* uA */
305 info->is_current = info->is_micro = info->is_auto = TRUE;
306 break;
307 case 0x3d: /* mA */
308 info->is_current = info->is_milli = info->is_auto = TRUE;
309 break;
310 case 0x3c: /* V */
311 info->is_voltage = TRUE;
312 break;
313 case 0x37: /* Resistance */
314 info->is_resistance = TRUE;
315 break;
316 case 0x36: /* Continuity */
317 info->is_continuity = TRUE;
318 break;
319 case 0x3b: /* Diode */
320 info->is_diode = TRUE;
321 break;
322 case 0x3a: /* Frequency */
323 info->is_frequency = TRUE;
324 break;
325 case 0x34: /* ADP0 */
326 case 0x35: /* ADP0 */
327 info->is_adp0 = TRUE;
328 break;
329 case 0x38: /* ADP1 */
330 case 0x39: /* ADP1 */
331 info->is_adp1 = TRUE;
332 break;
333 case 0x32: /* ADP2 */
334 case 0x33: /* ADP2 */
335 info->is_adp2 = TRUE;
336 break;
337 case 0x30: /* ADP3 */
338 case 0x31: /* ADP3 */
339 info->is_adp3 = TRUE;
340 break;
341 default:
342 sr_err("Invalid function byte: 0x%02x.", buf[function]);
343 break;
344 }
345 } else {
72e1672f 346 /* Note: Some of these mappings are fixed up later. */
c01bdebc
AJ
347 switch (buf[function]) {
348 case 0x3b: /* V */
349 info->is_voltage = TRUE;
350 break;
351 case 0x3d: /* uA */
352 info->is_current = info->is_micro = info->is_auto = TRUE;
353 break;
354 case 0x3f: /* mA */
355 info->is_current = info->is_milli = info->is_auto = TRUE;
356 break;
357 case 0x30: /* A */
358 info->is_current = info->is_auto = TRUE;
359 break;
360 case 0x39: /* Manual A */
361 info->is_current = TRUE;
362 info->is_auto = FALSE; /* Manual mode */
363 break;
364 case 0x33: /* Resistance */
365 info->is_resistance = TRUE;
366 break;
367 case 0x35: /* Continuity */
368 info->is_continuity = TRUE;
369 break;
370 case 0x31: /* Diode */
371 info->is_diode = TRUE;
372 break;
373 case 0x32: /* Frequency / RPM / duty cycle */
374 if (info->packet_size == 14) {
375 if (info->is_judge)
c01bdebc 376 info->is_duty_cycle = TRUE;
e1f9f1e1
AJ
377 else
378 info->is_frequency = TRUE;
c01bdebc
AJ
379 } else {
380 if (info->is_judge)
381 info->is_rpm = TRUE;
382 else
383 info->is_frequency = TRUE;
384 }
385 break;
386 case 0x36: /* Capacitance */
387 info->is_capacitance = TRUE;
388 break;
389 case 0x34: /* Temperature */
390 info->is_temperature = TRUE;
391 if (info->is_judge)
392 info->is_celsius = TRUE;
393 else
394 info->is_fahrenheit = TRUE;
72e1672f 395 /* IMPORTANT: The digits always represent Celsius! */
c01bdebc
AJ
396 break;
397 case 0x3e: /* ADP0 */
398 info->is_adp0 = TRUE;
399 break;
400 case 0x3c: /* ADP1 */
401 info->is_adp1 = TRUE;
402 break;
403 case 0x38: /* ADP2 */
404 info->is_adp2 = TRUE;
405 break;
406 case 0x3a: /* ADP3 */
407 info->is_adp3 = TRUE;
408 break;
409 default:
410 sr_err("Invalid function byte: 0x%02x.", buf[function]);
411 break;
412 }
413 }
414
415 if (info->is_current && (info->is_micro || info->is_milli) && info->is_vasel) {
416 info->is_current = info->is_auto = FALSE;
417 info->is_voltage = TRUE;
418 }
419
420 if (info->baudrate == 2400) {
72e1672f 421 /* Inverted mapping between mA and A, and no manual A. */
c01bdebc
AJ
422 if (info->is_current && (info->is_milli || !info->is_auto)) {
423 info->is_milli = !info->is_milli;
424 info->is_auto = TRUE;
425 }
426 }
427}
428
429static void handle_flags(struct sr_datafeed_analog *analog,
72e1672f 430 float *floatval, const struct es519xx_info *info)
c01bdebc
AJ
431{
432 /*
433 * Note: is_micro etc. are not used directly to multiply/divide
434 * floatval, this is handled via parse_range() and factors[][].
435 */
436
437 /* Measurement modes */
438 if (info->is_voltage) {
439 analog->mq = SR_MQ_VOLTAGE;
440 analog->unit = SR_UNIT_VOLT;
441 }
442 if (info->is_current) {
443 analog->mq = SR_MQ_CURRENT;
444 analog->unit = SR_UNIT_AMPERE;
445 }
446 if (info->is_resistance) {
447 analog->mq = SR_MQ_RESISTANCE;
448 analog->unit = SR_UNIT_OHM;
449 }
450 if (info->is_frequency) {
451 analog->mq = SR_MQ_FREQUENCY;
452 analog->unit = SR_UNIT_HERTZ;
453 }
454 if (info->is_capacitance) {
455 analog->mq = SR_MQ_CAPACITANCE;
456 analog->unit = SR_UNIT_FARAD;
457 }
458 if (info->is_temperature && info->is_celsius) {
459 analog->mq = SR_MQ_TEMPERATURE;
460 analog->unit = SR_UNIT_CELSIUS;
461 }
462 if (info->is_temperature && info->is_fahrenheit) {
463 analog->mq = SR_MQ_TEMPERATURE;
464 analog->unit = SR_UNIT_FAHRENHEIT;
465 }
466 if (info->is_continuity) {
467 analog->mq = SR_MQ_CONTINUITY;
468 analog->unit = SR_UNIT_BOOLEAN;
a7c01629 469 *floatval = (*floatval < 0.0 || *floatval > 25.0) ? 0.0 : 1.0;
c01bdebc
AJ
470 }
471 if (info->is_diode) {
472 analog->mq = SR_MQ_VOLTAGE;
473 analog->unit = SR_UNIT_VOLT;
474 }
475 if (info->is_rpm) {
476 analog->mq = SR_MQ_FREQUENCY;
477 analog->unit = SR_UNIT_REVOLUTIONS_PER_MINUTE;
478 }
479 if (info->is_duty_cycle) {
480 analog->mq = SR_MQ_DUTY_CYCLE;
481 analog->unit = SR_UNIT_PERCENTAGE;
482 }
483
484 /* Measurement related flags */
485 if (info->is_ac)
486 analog->mqflags |= SR_MQFLAG_AC;
487 if (info->is_dc)
488 analog->mqflags |= SR_MQFLAG_DC;
489 if (info->is_auto)
490 analog->mqflags |= SR_MQFLAG_AUTORANGE;
491 if (info->is_diode)
492 analog->mqflags |= SR_MQFLAG_DIODE;
493 if (info->is_hold)
72e1672f
UH
494 /*
495 * Note: HOLD only affects the number displayed on the LCD,
496 * but not the value sent via the protocol! It also does not
497 * affect the bargraph on the LCD.
498 */
c01bdebc
AJ
499 analog->mqflags |= SR_MQFLAG_HOLD;
500 if (info->is_max)
501 analog->mqflags |= SR_MQFLAG_MAX;
502 if (info->is_min)
503 analog->mqflags |= SR_MQFLAG_MIN;
504 if (info->is_rel)
505 analog->mqflags |= SR_MQFLAG_RELATIVE;
506
507 /* Other flags */
508 if (info->is_judge)
509 sr_spew("Judge bit is set.");
510 if (info->is_batt)
511 sr_spew("Battery is low.");
512 if (info->is_ol)
513 sr_spew("Input overflow.");
514 if (info->is_ul)
515 sr_spew("Input underflow.");
516 if (info->is_pmax)
517 sr_spew("pMAX active, LCD shows max. peak value.");
518 if (info->is_pmin)
519 sr_spew("pMIN active, LCD shows min. peak value.");
520 if (info->is_vahz)
521 sr_spew("VAHZ active.");
522 if (info->is_apo)
523 sr_spew("Auto-Power-Off enabled.");
524 if (info->is_vbar)
525 sr_spew("VBAR active.");
526 if ((!info->selectable_lpf && info->is_lpf1) ||
527 (info->selectable_lpf && (!info->is_lpf0 || !info->is_lpf1)))
528 sr_spew("Low-pass filter feature is active.");
529}
530
531static gboolean flags_valid(const struct es519xx_info *info)
532{
533 int count;
534
535 /* Does the packet have more than one multiplier? */
72e1672f
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536 count = (info->is_micro) ? 1 : 0;
537 count += (info->is_milli) ? 1 : 0;
c01bdebc
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538 if (count > 1) {
539 sr_err("More than one multiplier detected in packet.");
540 return FALSE;
541 }
542
543 /* Does the packet "measure" more than one type of value? */
72e1672f
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544 count = (info->is_voltage) ? 1 : 0;
545 count += (info->is_current) ? 1 : 0;
546 count += (info->is_resistance) ? 1 : 0;
547 count += (info->is_frequency) ? 1 : 0;
548 count += (info->is_capacitance) ? 1 : 0;
549 count += (info->is_temperature) ? 1 : 0;
550 count += (info->is_continuity) ? 1 : 0;
551 count += (info->is_diode) ? 1 : 0;
552 count += (info->is_rpm) ? 1 : 0;
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553 if (count > 1) {
554 sr_err("More than one measurement type detected in packet.");
555 return FALSE;
556 }
557
558 /* Both AC and DC set? */
559 if (info->is_ac && info->is_dc) {
560 sr_err("Both AC and DC flags detected in packet.");
561 return FALSE;
562 }
563
564 return TRUE;
565}
566
567static gboolean sr_es519xx_packet_valid(const uint8_t *buf,
568 struct es519xx_info *info)
569{
72e1672f
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570 int s;
571
572 s = info->packet_size;
c01bdebc 573
72e1672f 574 if (s == 11 && memcmp(buf, buf + s, s))
c01bdebc
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575 return FALSE;
576
72e1672f 577 if (buf[s - 2] != '\r' || buf[s - 1] != '\n')
c01bdebc
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578 return FALSE;
579
580 parse_flags(buf, info);
581
582 if (!flags_valid(info))
583 return FALSE;
584
585 return TRUE;
586}
587
588static int sr_es519xx_parse(const uint8_t *buf, float *floatval,
589 struct sr_datafeed_analog *analog,
590 struct es519xx_info *info)
591{
592 int ret;
593
594 if (!sr_es519xx_packet_valid(buf, info))
595 return SR_ERR;
596
597 if ((ret = parse_value(buf, info, floatval)) != SR_OK) {
598 sr_err("Error parsing value: %d.", ret);
599 return ret;
600 }
601
a7c01629
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602 if ((ret = parse_range(buf[0], floatval, info)) != SR_OK)
603 return ret;
c01bdebc 604
a7c01629
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605 handle_flags(analog, floatval, info);
606 return SR_OK;
c01bdebc
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607}
608
c01bdebc 609/*
72e1672f 610 * Functions for 2400 baud / 11 bytes protocols.
c01bdebc
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611 * This includes ES51962, ES51971, ES51972, ES51978 and ES51989.
612 */
72e1672f 613SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf)
c01bdebc 614{
94e9021b 615 struct es519xx_info info = { 0 };
72e1672f
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616
617 info.baudrate = 2400;
618 info.packet_size = 11;
619
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620 return sr_es519xx_packet_valid(buf, &info);
621}
622
72e1672f
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623SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
624 struct sr_datafeed_analog *analog, void *info)
c01bdebc 625{
72e1672f
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626 struct es519xx_info *info_local;
627
628 info_local = info;
94e9021b 629 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
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630 info_local->baudrate = 2400;
631 info_local->packet_size = 11;
632
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633 return sr_es519xx_parse(buf, floatval, analog, info);
634}
635
c01bdebc 636/*
72e1672f 637 * Functions for 2400 baud / 11 byte protocols.
c01bdebc
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638 * This includes ES51960, ES51977 and ES51988.
639 */
72e1672f 640SR_PRIV gboolean sr_es519xx_2400_11b_altfn_packet_valid(const uint8_t *buf)
c01bdebc 641{
94e9021b 642 struct es519xx_info info = { 0 };
72e1672f
UH
643
644 info.baudrate = 2400;
645 info.packet_size = 11;
646 info.alt_functions = TRUE;
647
c01bdebc
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648 return sr_es519xx_packet_valid(buf, &info);
649}
650
72e1672f
UH
651SR_PRIV int sr_es519xx_2400_11b_altfn_parse(const uint8_t *buf,
652 float *floatval, struct sr_datafeed_analog *analog, void *info)
c01bdebc 653{
72e1672f
UH
654 struct es519xx_info *info_local;
655
656 info_local = info;
94e9021b 657 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
658 info_local->baudrate = 2400;
659 info_local->packet_size = 11;
660 info_local->alt_functions = TRUE;
661
c01bdebc
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662 return sr_es519xx_parse(buf, floatval, analog, info);
663}
664
c01bdebc 665/*
72e1672f 666 * Functions for 19200 baud / 11 bytes protocols with 5 digits display.
c01bdebc
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667 * This includes ES51911, ES51916 and ES51918.
668 */
72e1672f 669SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf)
c01bdebc 670{
94e9021b 671 struct es519xx_info info = { 0 };
72e1672f
UH
672
673 info.baudrate = 19200;
674 info.packet_size = 11;
675 info.fivedigits = TRUE;
676
c01bdebc
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677 return sr_es519xx_packet_valid(buf, &info);
678}
679
93d719cd 680SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
72e1672f 681 float *floatval, struct sr_datafeed_analog *analog, void *info)
c01bdebc 682{
72e1672f
UH
683 struct es519xx_info *info_local;
684
685 info_local = info;
94e9021b 686 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
687 info_local->baudrate = 19200;
688 info_local->packet_size = 11;
689 info_local->fivedigits = TRUE;
690
c01bdebc
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691 return sr_es519xx_parse(buf, floatval, analog, info);
692}
693
c01bdebc 694/*
72e1672f 695 * Functions for 19200 baud / 11 bytes protocols with clamp meter support.
c01bdebc
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696 * This includes ES51967 and ES51969.
697 */
72e1672f 698SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf)
c01bdebc 699{
94e9021b 700 struct es519xx_info info = { 0 };
72e1672f
UH
701
702 info.baudrate = 19200;
703 info.packet_size = 11;
704 info.clampmeter = TRUE;
705
c01bdebc
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706 return sr_es519xx_packet_valid(buf, &info);
707}
708
72e1672f
UH
709SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
710 float *floatval, struct sr_datafeed_analog *analog, void *info)
c01bdebc 711{
72e1672f
UH
712 struct es519xx_info *info_local;
713
714 info_local = info;
94e9021b 715 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
716 info_local->baudrate = 19200;
717 info_local->packet_size = 11;
718 info_local->clampmeter = TRUE;
719
c01bdebc
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720 return sr_es519xx_parse(buf, floatval, analog, info);
721}
722
c01bdebc 723/*
72e1672f 724 * Functions for 19200 baud / 11 bytes protocols.
c01bdebc
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725 * This includes ES51981, ES51982, ES51983, ES51984 and ES51986.
726 */
72e1672f 727SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf)
c01bdebc 728{
94e9021b 729 struct es519xx_info info = { 0 };
72e1672f
UH
730
731 info.baudrate = 19200;
732 info.packet_size = 11;
733
c01bdebc
AJ
734 return sr_es519xx_packet_valid(buf, &info);
735}
736
72e1672f
UH
737SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval,
738 struct sr_datafeed_analog *analog, void *info)
c01bdebc 739{
72e1672f
UH
740 struct es519xx_info *info_local;
741
742 info_local = info;
94e9021b 743 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
744 info_local->baudrate = 19200;
745 info_local->packet_size = 11;
746
c01bdebc
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747 return sr_es519xx_parse(buf, floatval, analog, info);
748}
749
c01bdebc 750/*
72e1672f 751 * Functions for 19200 baud / 14 bytes protocols.
c01bdebc
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752 * This includes ES51921 and ES51922.
753 */
72e1672f 754SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf)
c01bdebc 755{
94e9021b 756 struct es519xx_info info = { 0 };
72e1672f
UH
757
758 info.baudrate = 19200;
759 info.packet_size = 14;
760
c01bdebc
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761 return sr_es519xx_packet_valid(buf, &info);
762}
763
72e1672f
UH
764SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval,
765 struct sr_datafeed_analog *analog, void *info)
c01bdebc 766{
72e1672f
UH
767 struct es519xx_info *info_local;
768
769 info_local = info;
94e9021b 770 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
771 info_local->baudrate = 19200;
772 info_local->packet_size = 14;
773
c01bdebc
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774 return sr_es519xx_parse(buf, floatval, analog, info);
775}
776
c01bdebc 777/*
72e1672f 778 * Functions for 19200 baud / 14 bytes protocols with selectable LPF.
c01bdebc
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779 * This includes ES51931 and ES51932.
780 */
72e1672f 781SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf)
c01bdebc 782{
94e9021b 783 struct es519xx_info info = { 0 };
72e1672f
UH
784
785 info.baudrate = 19200;
786 info.packet_size = 14;
787 info.selectable_lpf = TRUE;
788
c01bdebc
AJ
789 return sr_es519xx_packet_valid(buf, &info);
790}
791
72e1672f
UH
792SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
793 float *floatval, struct sr_datafeed_analog *analog, void *info)
c01bdebc 794{
72e1672f
UH
795 struct es519xx_info *info_local;
796
797 info_local = info;
94e9021b 798 memset(info_local, 0, sizeof(struct es519xx_info));
72e1672f
UH
799 info_local->baudrate = 19200;
800 info_local->packet_size = 14;
801 info_local->selectable_lpf = TRUE;
802
c01bdebc
AJ
803 return sr_es519xx_parse(buf, floatval, analog, info);
804}