| | 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 | |
| | 35 | /* Message logging helpers with subsystem-specific prefix string. */ |
| | 36 | #define LOG_PREFIX "es519xx: " |
| | 37 | #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args) |
| | 38 | #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args) |
| | 39 | #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args) |
| | 40 | #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args) |
| | 41 | #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args) |
| | 42 | #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args) |
| | 43 | |
| | 44 | /* Factors for the respective measurement mode (0 means "invalid"). */ |
| | 45 | static const float factors_2400_11b[8][8] = { |
| | 46 | {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0 }, /* V */ |
| | 47 | {1e-7, 1e-6, 0, 0, 0, 0, 0, 0 }, /* uA */ |
| | 48 | {1e-5, 1e-4, 0, 0, 0, 0, 0, 0 }, /* mA */ |
| | 49 | {1e-2, 0, 0, 0, 0, 0, 0, 0 }, /* A */ |
| | 50 | {1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 0, 0 }, /* RPM */ |
| | 51 | {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0 }, /* Resistance */ |
| | 52 | {1, 1e1, 1e2, 1e3, 1e4, 1e5, 0, 0 }, /* Frequency */ |
| | 53 | {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */ |
| | 54 | }; |
| | 55 | static const float factors_19200_11b_5digits[8][8] = { |
| | 56 | {1e-4, 1e-3, 1e-2, 1e-1, 1e-5, 0, 0, 0}, /* V */ |
| | 57 | {1e-8, 1e-7, 0, 0, 0, 0, 0, 0}, /* uA */ |
| | 58 | {1e-6, 1e-5, 0, 0, 0, 0, 0, 0}, /* mA */ |
| | 59 | {0, 1e-3, 0, 0, 0, 0, 0, 0}, /* A */ |
| | 60 | {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0}, /* Manual A */ |
| | 61 | {1e-2, 1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Resistance */ |
| | 62 | {1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Frequency */ |
| | 63 | {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */ |
| | 64 | }; |
| | 65 | static const float factors_19200_11b_clampmeter[8][8] = { |
| | 66 | {1e-3, 1e-2, 1e-1, 1, 1e-4, 0, 0, 0}, /* V */ |
| | 67 | {1e-7, 1e-6, 0, 0, 0, 0, 0, 0}, /* uA */ |
| | 68 | {1e-5, 1e-4, 0, 0, 0, 0, 0, 0}, /* mA */ |
| | 69 | {1e-2, 0, 0, 0, 0, 0, 0, 0}, /* A */ |
| | 70 | {1e-3, 1e-2, 1e-1, 1, 0, 0, 0, 0}, /* Manual A */ |
| | 71 | {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0}, /* Resistance */ |
| | 72 | {1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Frequency */ |
| | 73 | {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */ |
| | 74 | }; |
| | 75 | static const float factors_19200_11b[8][8] = { |
| | 76 | {1e-3, 1e-2, 1e-1, 1, 1e-4, 0, 0, 0}, /* V */ |
| | 77 | {1e-7, 1e-6, 0, 0, 0, 0, 0, 0}, /* uA */ |
| | 78 | {1e-5, 1e-4, 0, 0, 0, 0, 0, 0}, /* mA */ |
| | 79 | {1e-3, 1e-2, 0, 0, 0, 0, 0, 0}, /* A */ |
| | 80 | {0, 0, 0, 0, 0, 0, 0, 0}, /* Manual A */ |
| | 81 | {1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0, 0}, /* Resistance */ |
| | 82 | {1, 1e1, 1e2, 1e3, 1e4, 0, 0, 0}, /* Frequency */ |
| | 83 | {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 0}, /* Capacitance */ |
| | 84 | }; |
| | 85 | static const float factors_19200_14b[8][8] = { |
| | 86 | {1e-4, 1e-3, 1e-2, 1e-1, 1e-5, 0, 0, 0}, /* V */ |
| | 87 | {1e-8, 1e-7, 0, 0, 0, 0, 0, 0}, /* uA */ |
| | 88 | {1e-6, 1e-5, 0, 0, 0, 0, 0, 0}, /* mA */ |
| | 89 | {1e-3, 0, 0, 0, 0, 0, 0, 0}, /* A */ |
| | 90 | {1e-4, 1e-3, 1e-2, 1e-1, 1, 0, 0, 0}, /* Manual A */ |
| | 91 | {1e-2, 1e-1, 1, 1e1, 1e2, 1e3, 1e4, 0}, /* Resistance */ |
| | 92 | {1e-2, 1e-1, 0, 1, 1e1, 1e2, 1e3, 1e4}, /* Frequency */ |
| | 93 | {1e-12, 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5}, /* Capacitance */ |
| | 94 | }; |
| | 95 | |
| | 96 | static int parse_value(const uint8_t *buf, struct es519xx_info *info, |
| | 97 | float *result) |
| | 98 | { |
| | 99 | int i, intval, num_digits; |
| | 100 | float floatval; |
| | 101 | |
| | 102 | num_digits = 4 + ((info->packet_size == 14) ? 1 : 0); |
| | 103 | |
| | 104 | /* Bytes 1-4 (or 5): Value (4 or 5 decimal digits) */ |
| | 105 | if (info->is_ol) { |
| | 106 | sr_spew("Over limit."); |
| | 107 | *result = INFINITY; |
| | 108 | return SR_OK; |
| | 109 | } else if (info->is_ul) { |
| | 110 | sr_spew("Under limit."); |
| | 111 | *result = INFINITY; |
| | 112 | return SR_OK; |
| | 113 | } else if (!isdigit(buf[1]) || !isdigit(buf[2]) || |
| | 114 | !isdigit(buf[3]) || !isdigit(buf[4]) || |
| | 115 | (num_digits == 5 && !isdigit(buf[5]))) { |
| | 116 | sr_err("Value contained invalid digits: %02x %02x %02x %02x " |
| | 117 | "(%c %c %c %c).", buf[1], buf[2], buf[3], buf[4], |
| | 118 | buf[1], buf[2], buf[3], buf[4]); |
| | 119 | return SR_ERR; |
| | 120 | } |
| | 121 | intval = (info->is_digit4) ? 1 : 0; |
| | 122 | for (i = 0; i < num_digits; i++) |
| | 123 | intval = 10 * intval + (buf[i + 1] - '0'); |
| | 124 | |
| | 125 | /* Apply sign. */ |
| | 126 | intval *= info->is_sign ? -1 : 1; |
| | 127 | |
| | 128 | floatval = (float)intval; |
| | 129 | |
| | 130 | /* Note: The decimal point position will be parsed later. */ |
| | 131 | |
| | 132 | sr_spew("The display value is %f.", floatval); |
| | 133 | |
| | 134 | *result = floatval; |
| | 135 | |
| | 136 | return SR_OK; |
| | 137 | } |
| | 138 | |
| | 139 | static int parse_range(uint8_t b, float *floatval, |
| | 140 | const struct es519xx_info *info) |
| | 141 | { |
| | 142 | int idx, mode; |
| | 143 | float factor = 0; |
| | 144 | |
| | 145 | idx = b - '0'; |
| | 146 | |
| | 147 | if (idx < 0 || idx > 7) { |
| | 148 | sr_dbg("Invalid range byte / index: 0x%02x / 0x%02x.", b, idx); |
| | 149 | return SR_ERR; |
| | 150 | } |
| | 151 | |
| | 152 | /* Parse range byte (depends on the measurement mode). */ |
| | 153 | if (info->is_voltage) |
| | 154 | mode = 0; /* V */ |
| | 155 | else if (info->is_current && info->is_micro) |
| | 156 | mode = 1; /* uA */ |
| | 157 | else if (info->is_current && info->is_milli) |
| | 158 | mode = 2; /* mA */ |
| | 159 | else if (info->is_current && info->is_auto) |
| | 160 | mode = 3; /* A */ |
| | 161 | else if (info->is_current && !info->is_auto) |
| | 162 | mode = 4; /* Manual A */ |
| | 163 | else if (info->is_rpm) |
| | 164 | /* Not a typo, it's really index 4 in factors_2400_11b[][]. */ |
| | 165 | mode = 4; /* RPM */ |
| | 166 | else if (info->is_resistance) |
| | 167 | mode = 5; /* Resistance */ |
| | 168 | else if (info->is_frequency) |
| | 169 | mode = 6; /* Frequency */ |
| | 170 | else if (info->is_capacitance) |
| | 171 | mode = 7; /* Capacitance */ |
| | 172 | else { |
| | 173 | sr_dbg("Invalid mode, range byte was: 0x%02x.", b); |
| | 174 | return SR_ERR; |
| | 175 | } |
| | 176 | |
| | 177 | if (info->is_vbar) { |
| | 178 | if (info->is_micro) |
| | 179 | factor = (const float[]){1e-1, 1}[idx]; |
| | 180 | else if (info->is_milli) |
| | 181 | factor = (const float[]){1e-2, 1e-1}[idx]; |
| | 182 | } |
| | 183 | else if (info->baudrate == 2400) |
| | 184 | factor = factors_2400_11b[mode][idx]; |
| | 185 | else if (info->fivedigits) |
| | 186 | factor = factors_19200_11b_5digits[mode][idx]; |
| | 187 | else if (info->clampmeter) |
| | 188 | factor = factors_19200_11b_clampmeter[mode][idx]; |
| | 189 | else if (info->packet_size == 11) |
| | 190 | factor = factors_19200_11b[mode][idx]; |
| | 191 | else if (info->packet_size == 14) |
| | 192 | factor = factors_19200_14b[mode][idx]; |
| | 193 | |
| | 194 | if (factor == 0) { |
| | 195 | sr_dbg("Invalid factor for range byte: 0x%02x.", b); |
| | 196 | return SR_ERR; |
| | 197 | } |
| | 198 | |
| | 199 | /* Apply respective factor (mode-dependent) on the value. */ |
| | 200 | *floatval *= factor; |
| | 201 | sr_dbg("Applying factor %f, new value is %f.", factor, *floatval); |
| | 202 | |
| | 203 | return SR_OK; |
| | 204 | } |
| | 205 | |
| | 206 | static void parse_flags(const uint8_t *buf, struct es519xx_info *info) |
| | 207 | { |
| | 208 | int function, status; |
| | 209 | |
| | 210 | function = 5 + ((info->packet_size == 14) ? 1 : 0); |
| | 211 | status = function + 1; |
| | 212 | |
| | 213 | /* Status byte */ |
| | 214 | if (info->alt_functions) { |
| | 215 | info->is_sign = (buf[status] & (1 << 3)) != 0; |
| | 216 | info->is_batt = (buf[status] & (1 << 2)) != 0; /* Bat. low */ |
| | 217 | info->is_ol = (buf[status] & (1 << 1)) != 0; /* Overflow */ |
| | 218 | info->is_ol |= (buf[status] & (1 << 0)) != 0; /* Overflow */ |
| | 219 | } else { |
| | 220 | info->is_judge = (buf[status] & (1 << 3)) != 0; |
| | 221 | info->is_sign = (buf[status] & (1 << 2)) != 0; |
| | 222 | info->is_batt = (buf[status] & (1 << 1)) != 0; /* Bat. low */ |
| | 223 | info->is_ol = (buf[status] & (1 << 0)) != 0; /* Overflow */ |
| | 224 | } |
| | 225 | |
| | 226 | if (info->packet_size == 14) { |
| | 227 | /* Option 1 byte */ |
| | 228 | info->is_max = (buf[8] & (1 << 3)) != 0; |
| | 229 | info->is_min = (buf[8] & (1 << 2)) != 0; |
| | 230 | info->is_rel = (buf[8] & (1 << 1)) != 0; |
| | 231 | info->is_rmr = (buf[8] & (1 << 0)) != 0; |
| | 232 | |
| | 233 | /* Option 2 byte */ |
| | 234 | info->is_ul = (buf[9] & (1 << 3)) != 0; /* Underflow */ |
| | 235 | info->is_pmax = (buf[9] & (1 << 2)) != 0; /* Max. peak value */ |
| | 236 | info->is_pmin = (buf[9] & (1 << 1)) != 0; /* Min. peak value */ |
| | 237 | |
| | 238 | /* Option 3 byte */ |
| | 239 | info->is_dc = (buf[10] & (1 << 3)) != 0; |
| | 240 | info->is_ac = (buf[10] & (1 << 2)) != 0; |
| | 241 | info->is_auto = (buf[10] & (1 << 1)) != 0; |
| | 242 | info->is_vahz = (buf[10] & (1 << 0)) != 0; |
| | 243 | |
| | 244 | /* LPF: Low-pass filter(s) */ |
| | 245 | if (info->selectable_lpf) { |
| | 246 | /* Option 4 byte */ |
| | 247 | info->is_hold = (buf[11] & (1 << 3)) != 0; |
| | 248 | info->is_vbar = (buf[11] & (1 << 2)) != 0; |
| | 249 | info->is_lpf1 = (buf[11] & (1 << 1)) != 0; |
| | 250 | info->is_lpf0 = (buf[11] & (1 << 0)) != 0; |
| | 251 | } else { |
| | 252 | /* Option 4 byte */ |
| | 253 | info->is_vbar = (buf[11] & (1 << 2)) != 0; |
| | 254 | info->is_hold = (buf[11] & (1 << 1)) != 0; |
| | 255 | info->is_lpf1 = (buf[11] & (1 << 0)) != 0; |
| | 256 | } |
| | 257 | } else if (info->alt_functions) { |
| | 258 | /* Option 2 byte */ |
| | 259 | info->is_dc = (buf[8] & (1 << 3)) != 0; |
| | 260 | info->is_auto = (buf[8] & (1 << 2)) != 0; |
| | 261 | info->is_apo = (buf[8] & (1 << 0)) != 0; |
| | 262 | info->is_ac = !info->is_dc; |
| | 263 | } else { |
| | 264 | /* Option 1 byte */ |
| | 265 | if (info->baudrate == 2400) { |
| | 266 | info->is_pmax = (buf[7] & (1 << 3)) != 0; |
| | 267 | info->is_pmin = (buf[7] & (1 << 2)) != 0; |
| | 268 | info->is_vahz = (buf[7] & (1 << 0)) != 0; |
| | 269 | } else if (info->fivedigits) { |
| | 270 | info->is_ul = (buf[7] & (1 << 3)) != 0; |
| | 271 | info->is_pmax = (buf[7] & (1 << 2)) != 0; |
| | 272 | info->is_pmin = (buf[7] & (1 << 1)) != 0; |
| | 273 | info->is_digit4 = (buf[7] & (1 << 0)) != 0; |
| | 274 | } else if (info->clampmeter) { |
| | 275 | info->is_ul = (buf[7] & (1 << 3)) != 0; |
| | 276 | info->is_vasel = (buf[7] & (1 << 2)) != 0; |
| | 277 | info->is_vbar = (buf[7] & (1 << 1)) != 0; |
| | 278 | } else { |
| | 279 | info->is_hold = (buf[7] & (1 << 3)) != 0; |
| | 280 | info->is_max = (buf[7] & (1 << 2)) != 0; |
| | 281 | info->is_min = (buf[7] & (1 << 1)) != 0; |
| | 282 | } |
| | 283 | |
| | 284 | /* Option 2 byte */ |
| | 285 | info->is_dc = (buf[8] & (1 << 3)) != 0; |
| | 286 | info->is_ac = (buf[8] & (1 << 2)) != 0; |
| | 287 | info->is_auto = (buf[8] & (1 << 1)) != 0; |
| | 288 | if (info->baudrate == 2400) |
| | 289 | info->is_apo = (buf[8] & (1 << 0)) != 0; |
| | 290 | else |
| | 291 | info->is_vahz = (buf[8] & (1 << 0)) != 0; |
| | 292 | } |
| | 293 | |
| | 294 | /* Function byte */ |
| | 295 | if (info->alt_functions) { |
| | 296 | switch (buf[function]) { |
| | 297 | case 0x3f: /* A */ |
| | 298 | info->is_current = info->is_auto = TRUE; |
| | 299 | break; |
| | 300 | case 0x3e: /* uA */ |
| | 301 | info->is_current = info->is_micro = info->is_auto = TRUE; |
| | 302 | break; |
| | 303 | case 0x3d: /* mA */ |
| | 304 | info->is_current = info->is_milli = info->is_auto = TRUE; |
| | 305 | break; |
| | 306 | case 0x3c: /* V */ |
| | 307 | info->is_voltage = TRUE; |
| | 308 | break; |
| | 309 | case 0x37: /* Resistance */ |
| | 310 | info->is_resistance = TRUE; |
| | 311 | break; |
| | 312 | case 0x36: /* Continuity */ |
| | 313 | info->is_continuity = TRUE; |
| | 314 | break; |
| | 315 | case 0x3b: /* Diode */ |
| | 316 | info->is_diode = TRUE; |
| | 317 | break; |
| | 318 | case 0x3a: /* Frequency */ |
| | 319 | info->is_frequency = TRUE; |
| | 320 | break; |
| | 321 | case 0x34: /* ADP0 */ |
| | 322 | case 0x35: /* ADP0 */ |
| | 323 | info->is_adp0 = TRUE; |
| | 324 | break; |
| | 325 | case 0x38: /* ADP1 */ |
| | 326 | case 0x39: /* ADP1 */ |
| | 327 | info->is_adp1 = TRUE; |
| | 328 | break; |
| | 329 | case 0x32: /* ADP2 */ |
| | 330 | case 0x33: /* ADP2 */ |
| | 331 | info->is_adp2 = TRUE; |
| | 332 | break; |
| | 333 | case 0x30: /* ADP3 */ |
| | 334 | case 0x31: /* ADP3 */ |
| | 335 | info->is_adp3 = TRUE; |
| | 336 | break; |
| | 337 | default: |
| | 338 | sr_err("Invalid function byte: 0x%02x.", buf[function]); |
| | 339 | break; |
| | 340 | } |
| | 341 | } else { |
| | 342 | /* Note: Some of these mappings are fixed up later. */ |
| | 343 | switch (buf[function]) { |
| | 344 | case 0x3b: /* V */ |
| | 345 | info->is_voltage = TRUE; |
| | 346 | break; |
| | 347 | case 0x3d: /* uA */ |
| | 348 | info->is_current = info->is_micro = info->is_auto = TRUE; |
| | 349 | break; |
| | 350 | case 0x3f: /* mA */ |
| | 351 | info->is_current = info->is_milli = info->is_auto = TRUE; |
| | 352 | break; |
| | 353 | case 0x30: /* A */ |
| | 354 | info->is_current = info->is_auto = TRUE; |
| | 355 | break; |
| | 356 | case 0x39: /* Manual A */ |
| | 357 | info->is_current = TRUE; |
| | 358 | info->is_auto = FALSE; /* Manual mode */ |
| | 359 | break; |
| | 360 | case 0x33: /* Resistance */ |
| | 361 | info->is_resistance = TRUE; |
| | 362 | break; |
| | 363 | case 0x35: /* Continuity */ |
| | 364 | info->is_continuity = TRUE; |
| | 365 | break; |
| | 366 | case 0x31: /* Diode */ |
| | 367 | info->is_diode = TRUE; |
| | 368 | break; |
| | 369 | case 0x32: /* Frequency / RPM / duty cycle */ |
| | 370 | if (info->packet_size == 14) { |
| | 371 | if (info->is_judge) |
| | 372 | info->is_frequency = TRUE; |
| | 373 | else |
| | 374 | info->is_duty_cycle = TRUE; |
| | 375 | } else { |
| | 376 | if (info->is_judge) |
| | 377 | info->is_rpm = TRUE; |
| | 378 | else |
| | 379 | info->is_frequency = TRUE; |
| | 380 | } |
| | 381 | break; |
| | 382 | case 0x36: /* Capacitance */ |
| | 383 | info->is_capacitance = TRUE; |
| | 384 | break; |
| | 385 | case 0x34: /* Temperature */ |
| | 386 | info->is_temperature = TRUE; |
| | 387 | if (info->is_judge) |
| | 388 | info->is_celsius = TRUE; |
| | 389 | else |
| | 390 | info->is_fahrenheit = TRUE; |
| | 391 | /* IMPORTANT: The digits always represent Celsius! */ |
| | 392 | break; |
| | 393 | case 0x3e: /* ADP0 */ |
| | 394 | info->is_adp0 = TRUE; |
| | 395 | break; |
| | 396 | case 0x3c: /* ADP1 */ |
| | 397 | info->is_adp1 = TRUE; |
| | 398 | break; |
| | 399 | case 0x38: /* ADP2 */ |
| | 400 | info->is_adp2 = TRUE; |
| | 401 | break; |
| | 402 | case 0x3a: /* ADP3 */ |
| | 403 | info->is_adp3 = TRUE; |
| | 404 | break; |
| | 405 | default: |
| | 406 | sr_err("Invalid function byte: 0x%02x.", buf[function]); |
| | 407 | break; |
| | 408 | } |
| | 409 | } |
| | 410 | |
| | 411 | if (info->is_current && (info->is_micro || info->is_milli) && info->is_vasel) { |
| | 412 | info->is_current = info->is_auto = FALSE; |
| | 413 | info->is_voltage = TRUE; |
| | 414 | } |
| | 415 | |
| | 416 | if (info->baudrate == 2400) { |
| | 417 | /* Inverted mapping between mA and A, and no manual A. */ |
| | 418 | if (info->is_current && (info->is_milli || !info->is_auto)) { |
| | 419 | info->is_milli = !info->is_milli; |
| | 420 | info->is_auto = TRUE; |
| | 421 | } |
| | 422 | } |
| | 423 | } |
| | 424 | |
| | 425 | static void handle_flags(struct sr_datafeed_analog *analog, |
| | 426 | float *floatval, const struct es519xx_info *info) |
| | 427 | { |
| | 428 | /* |
| | 429 | * Note: is_micro etc. are not used directly to multiply/divide |
| | 430 | * floatval, this is handled via parse_range() and factors[][]. |
| | 431 | */ |
| | 432 | |
| | 433 | /* Measurement modes */ |
| | 434 | if (info->is_voltage) { |
| | 435 | analog->mq = SR_MQ_VOLTAGE; |
| | 436 | analog->unit = SR_UNIT_VOLT; |
| | 437 | } |
| | 438 | if (info->is_current) { |
| | 439 | analog->mq = SR_MQ_CURRENT; |
| | 440 | analog->unit = SR_UNIT_AMPERE; |
| | 441 | } |
| | 442 | if (info->is_resistance) { |
| | 443 | analog->mq = SR_MQ_RESISTANCE; |
| | 444 | analog->unit = SR_UNIT_OHM; |
| | 445 | } |
| | 446 | if (info->is_frequency) { |
| | 447 | analog->mq = SR_MQ_FREQUENCY; |
| | 448 | analog->unit = SR_UNIT_HERTZ; |
| | 449 | } |
| | 450 | if (info->is_capacitance) { |
| | 451 | analog->mq = SR_MQ_CAPACITANCE; |
| | 452 | analog->unit = SR_UNIT_FARAD; |
| | 453 | } |
| | 454 | if (info->is_temperature && info->is_celsius) { |
| | 455 | analog->mq = SR_MQ_TEMPERATURE; |
| | 456 | analog->unit = SR_UNIT_CELSIUS; |
| | 457 | } |
| | 458 | if (info->is_temperature && info->is_fahrenheit) { |
| | 459 | analog->mq = SR_MQ_TEMPERATURE; |
| | 460 | analog->unit = SR_UNIT_FAHRENHEIT; |
| | 461 | } |
| | 462 | if (info->is_continuity) { |
| | 463 | analog->mq = SR_MQ_CONTINUITY; |
| | 464 | analog->unit = SR_UNIT_BOOLEAN; |
| | 465 | *floatval = (*floatval < 0.0) ? 0.0 : 1.0; |
| | 466 | } |
| | 467 | if (info->is_diode) { |
| | 468 | analog->mq = SR_MQ_VOLTAGE; |
| | 469 | analog->unit = SR_UNIT_VOLT; |
| | 470 | } |
| | 471 | if (info->is_rpm) { |
| | 472 | analog->mq = SR_MQ_FREQUENCY; |
| | 473 | analog->unit = SR_UNIT_REVOLUTIONS_PER_MINUTE; |
| | 474 | } |
| | 475 | if (info->is_duty_cycle) { |
| | 476 | analog->mq = SR_MQ_DUTY_CYCLE; |
| | 477 | analog->unit = SR_UNIT_PERCENTAGE; |
| | 478 | } |
| | 479 | |
| | 480 | /* Measurement related flags */ |
| | 481 | if (info->is_ac) |
| | 482 | analog->mqflags |= SR_MQFLAG_AC; |
| | 483 | if (info->is_dc) |
| | 484 | analog->mqflags |= SR_MQFLAG_DC; |
| | 485 | if (info->is_auto) |
| | 486 | analog->mqflags |= SR_MQFLAG_AUTORANGE; |
| | 487 | if (info->is_diode) |
| | 488 | analog->mqflags |= SR_MQFLAG_DIODE; |
| | 489 | if (info->is_hold) |
| | 490 | /* |
| | 491 | * Note: HOLD only affects the number displayed on the LCD, |
| | 492 | * but not the value sent via the protocol! It also does not |
| | 493 | * affect the bargraph on the LCD. |
| | 494 | */ |
| | 495 | analog->mqflags |= SR_MQFLAG_HOLD; |
| | 496 | if (info->is_max) |
| | 497 | analog->mqflags |= SR_MQFLAG_MAX; |
| | 498 | if (info->is_min) |
| | 499 | analog->mqflags |= SR_MQFLAG_MIN; |
| | 500 | if (info->is_rel) |
| | 501 | analog->mqflags |= SR_MQFLAG_RELATIVE; |
| | 502 | |
| | 503 | /* Other flags */ |
| | 504 | if (info->is_judge) |
| | 505 | sr_spew("Judge bit is set."); |
| | 506 | if (info->is_batt) |
| | 507 | sr_spew("Battery is low."); |
| | 508 | if (info->is_ol) |
| | 509 | sr_spew("Input overflow."); |
| | 510 | if (info->is_ul) |
| | 511 | sr_spew("Input underflow."); |
| | 512 | if (info->is_pmax) |
| | 513 | sr_spew("pMAX active, LCD shows max. peak value."); |
| | 514 | if (info->is_pmin) |
| | 515 | sr_spew("pMIN active, LCD shows min. peak value."); |
| | 516 | if (info->is_vahz) |
| | 517 | sr_spew("VAHZ active."); |
| | 518 | if (info->is_apo) |
| | 519 | sr_spew("Auto-Power-Off enabled."); |
| | 520 | if (info->is_vbar) |
| | 521 | sr_spew("VBAR active."); |
| | 522 | if ((!info->selectable_lpf && info->is_lpf1) || |
| | 523 | (info->selectable_lpf && (!info->is_lpf0 || !info->is_lpf1))) |
| | 524 | sr_spew("Low-pass filter feature is active."); |
| | 525 | } |
| | 526 | |
| | 527 | static gboolean flags_valid(const struct es519xx_info *info) |
| | 528 | { |
| | 529 | int count; |
| | 530 | |
| | 531 | /* Does the packet have more than one multiplier? */ |
| | 532 | count = (info->is_micro) ? 1 : 0; |
| | 533 | count += (info->is_milli) ? 1 : 0; |
| | 534 | if (count > 1) { |
| | 535 | sr_err("More than one multiplier detected in packet."); |
| | 536 | return FALSE; |
| | 537 | } |
| | 538 | |
| | 539 | /* Does the packet "measure" more than one type of value? */ |
| | 540 | count = (info->is_voltage) ? 1 : 0; |
| | 541 | count += (info->is_current) ? 1 : 0; |
| | 542 | count += (info->is_resistance) ? 1 : 0; |
| | 543 | count += (info->is_frequency) ? 1 : 0; |
| | 544 | count += (info->is_capacitance) ? 1 : 0; |
| | 545 | count += (info->is_temperature) ? 1 : 0; |
| | 546 | count += (info->is_continuity) ? 1 : 0; |
| | 547 | count += (info->is_diode) ? 1 : 0; |
| | 548 | count += (info->is_rpm) ? 1 : 0; |
| | 549 | if (count > 1) { |
| | 550 | sr_err("More than one measurement type detected in packet."); |
| | 551 | return FALSE; |
| | 552 | } |
| | 553 | |
| | 554 | /* Both AC and DC set? */ |
| | 555 | if (info->is_ac && info->is_dc) { |
| | 556 | sr_err("Both AC and DC flags detected in packet."); |
| | 557 | return FALSE; |
| | 558 | } |
| | 559 | |
| | 560 | return TRUE; |
| | 561 | } |
| | 562 | |
| | 563 | static gboolean sr_es519xx_packet_valid(const uint8_t *buf, |
| | 564 | struct es519xx_info *info) |
| | 565 | { |
| | 566 | int s; |
| | 567 | |
| | 568 | s = info->packet_size; |
| | 569 | |
| | 570 | if (s == 11 && memcmp(buf, buf + s, s)) |
| | 571 | return FALSE; |
| | 572 | |
| | 573 | if (buf[s - 2] != '\r' || buf[s - 1] != '\n') |
| | 574 | return FALSE; |
| | 575 | |
| | 576 | parse_flags(buf, info); |
| | 577 | |
| | 578 | if (!flags_valid(info)) |
| | 579 | return FALSE; |
| | 580 | |
| | 581 | return TRUE; |
| | 582 | } |
| | 583 | |
| | 584 | static int sr_es519xx_parse(const uint8_t *buf, float *floatval, |
| | 585 | struct sr_datafeed_analog *analog, |
| | 586 | struct es519xx_info *info) |
| | 587 | { |
| | 588 | int ret; |
| | 589 | |
| | 590 | if (!sr_es519xx_packet_valid(buf, info)) |
| | 591 | return SR_ERR; |
| | 592 | |
| | 593 | if ((ret = parse_value(buf, info, floatval)) != SR_OK) { |
| | 594 | sr_err("Error parsing value: %d.", ret); |
| | 595 | return ret; |
| | 596 | } |
| | 597 | |
| | 598 | handle_flags(analog, floatval, info); |
| | 599 | |
| | 600 | return parse_range(buf[0], floatval, info); |
| | 601 | } |
| | 602 | |
| | 603 | /* |
| | 604 | * Functions for 2400 baud / 11 bytes protocols. |
| | 605 | * This includes ES51962, ES51971, ES51972, ES51978 and ES51989. |
| | 606 | */ |
| | 607 | SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf) |
| | 608 | { |
| | 609 | struct es519xx_info info; |
| | 610 | |
| | 611 | info.baudrate = 2400; |
| | 612 | info.packet_size = 11; |
| | 613 | |
| | 614 | return sr_es519xx_packet_valid(buf, &info); |
| | 615 | } |
| | 616 | |
| | 617 | SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval, |
| | 618 | struct sr_datafeed_analog *analog, void *info) |
| | 619 | { |
| | 620 | struct es519xx_info *info_local; |
| | 621 | |
| | 622 | info_local = info; |
| | 623 | info_local->baudrate = 2400; |
| | 624 | info_local->packet_size = 11; |
| | 625 | |
| | 626 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 627 | } |
| | 628 | |
| | 629 | /* |
| | 630 | * Functions for 2400 baud / 11 byte protocols. |
| | 631 | * This includes ES51960, ES51977 and ES51988. |
| | 632 | */ |
| | 633 | SR_PRIV gboolean sr_es519xx_2400_11b_altfn_packet_valid(const uint8_t *buf) |
| | 634 | { |
| | 635 | struct es519xx_info info; |
| | 636 | |
| | 637 | info.baudrate = 2400; |
| | 638 | info.packet_size = 11; |
| | 639 | info.alt_functions = TRUE; |
| | 640 | |
| | 641 | return sr_es519xx_packet_valid(buf, &info); |
| | 642 | } |
| | 643 | |
| | 644 | SR_PRIV int sr_es519xx_2400_11b_altfn_parse(const uint8_t *buf, |
| | 645 | float *floatval, struct sr_datafeed_analog *analog, void *info) |
| | 646 | { |
| | 647 | struct es519xx_info *info_local; |
| | 648 | |
| | 649 | info_local = info; |
| | 650 | info_local->baudrate = 2400; |
| | 651 | info_local->packet_size = 11; |
| | 652 | info_local->alt_functions = TRUE; |
| | 653 | |
| | 654 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 655 | } |
| | 656 | |
| | 657 | /* |
| | 658 | * Functions for 19200 baud / 11 bytes protocols with 5 digits display. |
| | 659 | * This includes ES51911, ES51916 and ES51918. |
| | 660 | */ |
| | 661 | SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf) |
| | 662 | { |
| | 663 | struct es519xx_info info; |
| | 664 | |
| | 665 | info.baudrate = 19200; |
| | 666 | info.packet_size = 11; |
| | 667 | info.fivedigits = TRUE; |
| | 668 | |
| | 669 | return sr_es519xx_packet_valid(buf, &info); |
| | 670 | } |
| | 671 | |
| | 672 | SR_PRIV int sr_es519xx_19200_11b_5difits_parse(const uint8_t *buf, |
| | 673 | float *floatval, struct sr_datafeed_analog *analog, void *info) |
| | 674 | { |
| | 675 | struct es519xx_info *info_local; |
| | 676 | |
| | 677 | info_local = info; |
| | 678 | info_local->baudrate = 19200; |
| | 679 | info_local->packet_size = 11; |
| | 680 | info_local->fivedigits = TRUE; |
| | 681 | |
| | 682 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 683 | } |
| | 684 | |
| | 685 | /* |
| | 686 | * Functions for 19200 baud / 11 bytes protocols with clamp meter support. |
| | 687 | * This includes ES51967 and ES51969. |
| | 688 | */ |
| | 689 | SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf) |
| | 690 | { |
| | 691 | struct es519xx_info info; |
| | 692 | |
| | 693 | info.baudrate = 19200; |
| | 694 | info.packet_size = 11; |
| | 695 | info.clampmeter = TRUE; |
| | 696 | |
| | 697 | return sr_es519xx_packet_valid(buf, &info); |
| | 698 | } |
| | 699 | |
| | 700 | SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf, |
| | 701 | float *floatval, struct sr_datafeed_analog *analog, void *info) |
| | 702 | { |
| | 703 | struct es519xx_info *info_local; |
| | 704 | |
| | 705 | info_local = info; |
| | 706 | info_local->baudrate = 19200; |
| | 707 | info_local->packet_size = 11; |
| | 708 | info_local->clampmeter = TRUE; |
| | 709 | |
| | 710 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 711 | } |
| | 712 | |
| | 713 | /* |
| | 714 | * Functions for 19200 baud / 11 bytes protocols. |
| | 715 | * This includes ES51981, ES51982, ES51983, ES51984 and ES51986. |
| | 716 | */ |
| | 717 | SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf) |
| | 718 | { |
| | 719 | struct es519xx_info info; |
| | 720 | |
| | 721 | info.baudrate = 19200; |
| | 722 | info.packet_size = 11; |
| | 723 | |
| | 724 | return sr_es519xx_packet_valid(buf, &info); |
| | 725 | } |
| | 726 | |
| | 727 | SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval, |
| | 728 | struct sr_datafeed_analog *analog, void *info) |
| | 729 | { |
| | 730 | struct es519xx_info *info_local; |
| | 731 | |
| | 732 | info_local = info; |
| | 733 | info_local->baudrate = 19200; |
| | 734 | info_local->packet_size = 11; |
| | 735 | |
| | 736 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 737 | } |
| | 738 | |
| | 739 | /* |
| | 740 | * Functions for 19200 baud / 14 bytes protocols. |
| | 741 | * This includes ES51921 and ES51922. |
| | 742 | */ |
| | 743 | SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf) |
| | 744 | { |
| | 745 | struct es519xx_info info; |
| | 746 | |
| | 747 | info.baudrate = 19200; |
| | 748 | info.packet_size = 14; |
| | 749 | |
| | 750 | return sr_es519xx_packet_valid(buf, &info); |
| | 751 | } |
| | 752 | |
| | 753 | SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval, |
| | 754 | struct sr_datafeed_analog *analog, void *info) |
| | 755 | { |
| | 756 | struct es519xx_info *info_local; |
| | 757 | |
| | 758 | info_local = info; |
| | 759 | info_local->baudrate = 19200; |
| | 760 | info_local->packet_size = 14; |
| | 761 | |
| | 762 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 763 | } |
| | 764 | |
| | 765 | /* |
| | 766 | * Functions for 19200 baud / 14 bytes protocols with selectable LPF. |
| | 767 | * This includes ES51931 and ES51932. |
| | 768 | */ |
| | 769 | SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf) |
| | 770 | { |
| | 771 | struct es519xx_info info; |
| | 772 | |
| | 773 | info.baudrate = 19200; |
| | 774 | info.packet_size = 14; |
| | 775 | info.selectable_lpf = TRUE; |
| | 776 | |
| | 777 | return sr_es519xx_packet_valid(buf, &info); |
| | 778 | } |
| | 779 | |
| | 780 | SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf, |
| | 781 | float *floatval, struct sr_datafeed_analog *analog, void *info) |
| | 782 | { |
| | 783 | struct es519xx_info *info_local; |
| | 784 | |
| | 785 | info_local = info; |
| | 786 | info_local->baudrate = 19200; |
| | 787 | info_local->packet_size = 14; |
| | 788 | info_local->selectable_lpf = TRUE; |
| | 789 | |
| | 790 | return sr_es519xx_parse(buf, floatval, analog, info); |
| | 791 | } |
projects / libsigrok.git / blame_incremental