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annotate tempctrl.c @ 50:a13e0ccc1d2d
Rejig how temperatures are logged. Print out the final line at the end so it
is printed in one hit.
| author | darius@Inchoate |
|---|---|
| date | Wed, 29 Oct 2008 16:06:42 +1030 |
| parents | 91e06007fe23 |
| children | cb184206344d |
| rev | line source |
|---|---|
| 41 | 1 /* |
| 2 * Temperature control logic | |
| 3 * | |
| 4 * Copyright (c) 2008 | |
| 5 * Daniel O'Connor <darius@dons.net.au>. All rights reserved. | |
| 6 * | |
| 7 * Redistribution and use in source and binary forms, with or without | |
| 8 * modification, are permitted provided that the following conditions | |
| 9 * are met: | |
| 10 * 1. Redistributions of source code must retain the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer. | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 26 * SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 #include <stdint.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <avr/interrupt.h> | |
| 33 #include <avr/pgmspace.h> | |
| 34 #include <avr/eeprom.h> | |
| 46 | 35 #include <avr/wdt.h> |
| 41 | 36 #include <util/crc16.h> |
| 37 | |
| 38 #include "cons.h" | |
| 39 #include "1wire.h" | |
| 40 #include "tempctrl.h" | |
| 41 | |
| 42 typedef struct { | |
| 43 int32_t sec; | |
| 44 int32_t usec; | |
| 45 } time_t; | |
| 46 | |
| 47 /* Holds all the settings needed */ | |
| 48 typedef struct { | |
| 49 uint8_t fermenter_ROM[8]; | |
| 50 uint8_t fridge_ROM[8]; | |
| 51 uint8_t ambient_ROM[8]; | |
| 52 int16_t target_temp; | |
| 53 uint16_t hysteresis; | |
| 54 | |
| 55 /* How much to under/overshoot on heating/cooling */ | |
| 56 int16_t minheatovershoot; | |
| 57 int16_t mincoolovershoot; | |
| 58 | |
| 59 /* Minimum time the cooler can be on/off */ | |
| 60 int16_t mincoolontime; | |
| 61 int16_t mincoolofftime; | |
| 62 | |
| 63 /* Minimum time the heater can be on/off */ | |
| 64 int16_t minheatontime; | |
| 65 int16_t minheatofftime; | |
| 66 | |
| 67 #define TC_MODE_AUTO 'a' /* Automatic control */ | |
| 68 #define TC_MODE_HEAT 'h' /* Force heating */ | |
| 69 #define TC_MODE_COOL 'c' /* Force cooling */ | |
| 70 #define TC_MODE_IDLE 'i' /* Force idle */ | |
| 71 #define TC_MODE_NOTHING 'n' /* Do nothing (like idle but log nothing) */ | |
| 72 char mode; | |
| 73 | |
| 74 /* Bit patterns for various modes */ | |
| 75 uint8_t coolbits; | |
| 76 uint8_t heatbits; | |
| 77 uint8_t idlebits; | |
| 78 | |
| 79 /* Check/stale times */ | |
| 80 int16_t check_interval; | |
| 81 int16_t stale_factor; | |
| 82 } __attribute__((packed)) settings_t; | |
| 83 | |
| 84 /* Current settings in RAM */ | |
| 85 static settings_t settings; | |
| 86 | |
| 87 /* Our map of EEPROM */ | |
| 88 struct { | |
| 89 settings_t settings; | |
| 90 uint16_t crc; | |
| 91 } ee_area __attribute__((section(".eeprom"))); | |
| 92 | |
| 93 /* Defaults that are shoved into EEPROM if it isn't inited */ | |
| 94 const PROGMEM settings_t default_settings = { | |
| 95 .fermenter_ROM = { 0x10, 0xeb, 0x48, 0x21, 0x01, 0x08, 0x00, 0xdf }, | |
| 96 .fridge_ROM = { 0x10, 0xa6, 0x2a, 0xc4, 0x00, 0x08, 0x00, 0x11 }, | |
| 97 .ambient_ROM = { 0x10, 0x97, 0x1b, 0xfe, 0x00, 0x08, 0x00, 0xd1 }, | |
| 98 .target_temp = 1400, | |
| 99 .hysteresis = 100, | |
| 100 .minheatovershoot = 50, | |
| 101 .mincoolovershoot = -50, | |
| 102 .mincoolontime = 300, | |
| 103 .mincoolofftime = 600, | |
| 104 .minheatontime = 60, | |
| 105 .minheatofftime = 60, | |
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106 .mode = TC_MODE_IDLE, |
| 46 | 107 .coolbits = _BV(6), |
| 108 .heatbits = _BV(7), | |
| 41 | 109 .idlebits = 0x00, |
| 110 .check_interval = 10, | |
| 111 .stale_factor = 3 | |
| 112 }; | |
| 113 | |
| 114 /* Local variable declarations */ | |
| 115 volatile static time_t now; | |
| 116 | |
| 117 /* Local function prototypes */ | |
| 118 static void tempctrl_load_or_init_settings(void); | |
| 119 static void tempctrl_default_settings(void); | |
| 120 static void tempctrl_write_settings(void); | |
| 121 static void setstate(char state); | |
| 122 static const PROGMEM char*state2long(char s); | |
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123 static void printtemp(char *name, int tmp, char *trailer); |
| 41 | 124 |
| 125 /* | |
| 126 * tempctrl_init | |
| 127 * | |
| 128 * Setup timer, should be called with interrupts disabled. | |
| 129 * | |
| 130 */ | |
| 131 void | |
| 132 tempctrl_init(void) { | |
| 133 /* Setup timer */ | |
| 134 /* 16Mhz / 1024 = 15625 Hz / 125 = 125 Hz = IRQ every 8 ms */ | |
| 135 | |
| 136 /* CTC mode, no output on pin, Divide clock by 1024 */ | |
| 137 TCCR0 = _BV(WGM01)| _BV(CS02) | _BV(CS00); | |
| 138 | |
| 139 /* Compare with ... */ | |
| 140 OCR0 = 125; | |
| 141 | |
| 142 /* Enable interrupt for match on A */ | |
| 143 TIMSK = _BV(OCIE0); | |
| 144 | |
| 145 now.sec = 0; | |
| 146 now.usec = 0; | |
| 147 | |
| 148 tempctrl_load_or_init_settings(); | |
| 149 } | |
| 150 | |
| 151 /* | |
| 152 * Timer 0 Compare IRQ | |
| 153 * | |
| 154 * Update time counter | |
| 155 */ | |
| 156 | |
| 157 ISR(TIMER0_COMP_vect) { | |
| 46 | 158 wdt_reset(); |
| 159 | |
| 41 | 160 now.usec += 8000; /* 1000000 * 1 / F_CPU / 1024 / 125 */ |
| 161 while (now.usec > 1000000) { | |
| 162 now.usec -= 1000000; | |
| 163 now.sec++; | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 /* | |
| 168 * tempctrl_update | |
| 169 * | |
| 170 * Should be called in a normal context, could run things that take a long time. | |
| 171 * (ie 1wire bus stuff) | |
| 172 * | |
| 173 */ | |
| 174 void | |
| 175 tempctrl_update(void) { | |
| 176 /* State variables */ | |
| 177 static int32_t checktime = 0; // Time of next check | |
| 46 | 178 static int32_t lastdata = INT32_MIN; // Last time we got data |
| 41 | 179 |
| 180 static int16_t fermenter_temp = 0; // Fermenter temperature | |
| 181 static int16_t fridge_temp = 0; // Fridge temperature | |
| 182 static int16_t ambient_temp = 0; // Ambient temperature | |
| 46 | 183 static int32_t lastheaton = INT32_MIN; // Last time the heater was on |
| 184 static int32_t lastheatoff = INT32_MIN;// Last time the heater was off | |
| 185 static int32_t lastcoolon = INT32_MIN; // Last time the cooler was on | |
| 186 static int32_t lastcooloff = INT32_MIN;// Last time the cooler was off | |
| 41 | 187 static char currstate = 'i'; // Current state |
| 46 | 188 /* We init to times to INT32_MIN so that things function properly when |
| 189 * now < settings.minheat/cool/on/offtime */ | |
| 41 | 190 |
| 191 /* Temporary variables */ | |
| 192 int32_t t; | |
| 193 int16_t diff; | |
| 194 char nextstate; | |
| 195 int forced; | |
| 196 int stale; | |
| 197 | |
| 198 t = gettod(); | |
| 199 /* Time to check temperatures? */ | |
| 200 if (t < checktime) | |
| 201 return; | |
| 202 | |
| 203 checktime = t + settings.check_interval; | |
| 204 | |
| 205 /* Don't do any logging, just force idle and leave */ | |
| 206 if (settings.mode == TC_MODE_NOTHING) { | |
| 207 nextstate = 'i'; | |
| 208 goto setstate; | |
| 209 } | |
| 210 | |
| 211 /* Update our temperatures */ | |
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212 fermenter_temp = OWGetTemp(settings.fermenter_ROM); |
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213 fridge_temp = OWGetTemp(settings.fridge_ROM); |
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214 ambient_temp = OWGetTemp(settings.ambient_ROM); |
| 41 | 215 |
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216 if (fermenter_temp > OW_TEMP_BADVAL) |
| 41 | 217 lastdata = t; |
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218 |
| 41 | 219 /* Check for stale data */ |
| 220 if (lastdata + (settings.check_interval * settings.stale_factor) < t) | |
| 221 stale = 1; | |
| 222 else | |
| 223 stale = 0; | |
| 224 | |
| 225 /* Default to remaining as we are */ | |
| 226 nextstate = '-'; | |
| 227 | |
| 228 /* Temperature diff, -ve => too cold, +ve => too warm */ | |
| 229 diff = fermenter_temp - settings.target_temp; | |
| 230 | |
| 231 switch (currstate) { | |
| 232 case 'i': | |
| 233 /* If we're idle then only heat or cool if the temperate difference is out of the | |
| 234 * hysteresis band | |
| 235 */ | |
| 236 if (abs(diff) > settings.hysteresis) { | |
| 237 if (diff < 0 && settings.minheatofftime + lastheatoff < t) | |
| 238 nextstate = 'h'; | |
| 239 else if (diff > 0 && settings.mincoolofftime + lastcooloff < t) | |
| 240 nextstate = 'c'; | |
| 241 } | |
| 242 break; | |
| 243 | |
| 244 case 'c': | |
| 245 /* Work out if we should go idle (based on min on time & overshoot) */ | |
| 246 if (diff + settings.mincoolovershoot < 0 && | |
| 247 settings.mincoolontime + lastcoolon < t) | |
| 248 nextstate = 'i'; | |
| 249 break; | |
| 250 | |
| 251 case 'h': | |
| 252 if (diff - settings.minheatovershoot > 0 && | |
| 253 settings.minheatontime + lastheaton < t) | |
| 254 nextstate = 'i'; | |
| 255 break; | |
| 256 | |
| 257 default: | |
| 258 printf_P(PSTR("\r\nUnknown state %c, going to idle\n"), currstate); | |
| 259 nextstate = 'i'; | |
| 260 break; | |
| 261 } | |
| 262 | |
| 263 /* Override if we have stale data */ | |
| 264 if (stale) | |
| 265 nextstate = 'i'; | |
| 266 | |
| 267 /* Handle state forcing */ | |
| 268 if (settings.mode != TC_MODE_AUTO) | |
| 269 forced = 1; | |
| 270 else | |
| 271 forced = 0; | |
| 272 | |
| 273 if (settings.mode == TC_MODE_IDLE) | |
| 274 nextstate = 'i'; | |
| 275 else if (settings.mode == TC_MODE_HEAT) | |
| 276 nextstate = 'h'; | |
| 277 else if (settings.mode == TC_MODE_COOL) | |
| 278 nextstate = 'c'; | |
| 279 | |
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280 // Keep track of when we last turned things on or off |
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281 switch (nextstate) { |
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282 case 'c': |
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283 if (currstate == 'h') |
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284 lastheatoff = t; |
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285 lastcoolon = t; |
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286 break; |
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287 |
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288 case 'h': |
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289 if (currstate == 'c') |
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290 lastcooloff = t; |
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291 lastheaton = t; |
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292 break; |
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293 |
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294 default: |
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295 if (currstate == 'c') |
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296 lastcooloff = t; |
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297 if (currstate == 'h') |
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298 lastheatoff = t; |
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299 } |
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300 |
| 41 | 301 if (nextstate != '-') |
| 302 currstate = nextstate; | |
| 303 | |
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304 printf_P(PSTR("Time: %10ld, "), t); |
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305 printtemp(PSTR("Target"), settings.target_temp, PSTR(", ")); |
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306 printtemp(PSTR("Fermenter"), fermenter_temp, PSTR(", ")); |
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307 printtemp(PSTR("Fridge"), fridge_temp, PSTR(", ")); |
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308 printtemp(PSTR("Ambient"), ambient_temp, PSTR(", ")); |
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309 printf_P(PSTR("State: %S, Flags: %S%S\r\n"), state2long(currstate), |
| 41 | 310 forced ? PSTR("F") : PSTR(""), |
| 311 stale ? PSTR("S") : PSTR("")); | |
| 312 | |
| 313 setstate: | |
| 314 setstate(currstate); | |
| 315 } | |
| 316 | |
| 317 /* Return 'time of day' (really uptime) */ | |
| 318 int32_t | |
| 319 gettod(void) { | |
| 320 int32_t t; | |
| 321 | |
| 322 cli(); | |
| 323 t = now.sec; | |
| 324 sei(); | |
| 325 | |
| 326 return(t); | |
| 327 } | |
| 328 | |
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329 /* |
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330 * Print out temperature (or NA + error code) with specified trailer |
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331 */ |
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332 static void |
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333 printtemp(char *name, int tmp, char *trailer) { |
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334 if (tmp > OW_TEMP_BADVAL) |
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335 printf_P(PSTR("%S: %d.%02d%S"), name, GETWHOLE(tmp), GETFRAC(tmp), trailer); |
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336 else |
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337 printf_P(PSTR("%S: NA (%d)%S"), name, tmp, trailer); |
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338 } |
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339 |
| 41 | 340 /* Read the settings from EEPROM |
| 341 * If the CRC fails then reload from flash | |
| 342 */ | |
| 343 static void | |
| 344 tempctrl_load_or_init_settings(void) { | |
| 345 uint8_t *dptr; | |
| 346 uint16_t crc, strcrc; | |
| 347 int i; | |
| 348 | |
| 349 crc = 0; | |
| 350 eeprom_busy_wait(); | |
| 351 eeprom_read_block(&settings, &ee_area.settings, sizeof(settings_t)); | |
| 352 strcrc = eeprom_read_word(&ee_area.crc); | |
| 353 | |
| 354 dptr = (uint8_t *)&settings; | |
| 355 | |
| 356 for (i = 0; i < sizeof(settings_t); i++) | |
| 357 crc = _crc16_update(crc, dptr[i]); | |
| 358 | |
| 359 /* All OK? */ | |
| 360 if (crc == strcrc) | |
| 361 return; | |
| 362 | |
| 363 printf_P(PSTR("CRC mismatch got 0x%04x vs 0x%04x, setting defaults\r\n"), crc, strcrc); | |
| 364 tempctrl_default_settings(); | |
| 365 tempctrl_write_settings(); | |
| 366 } | |
| 367 | |
| 368 /* Load in the defaults from flash */ | |
| 369 static void | |
| 370 tempctrl_default_settings(void) { | |
| 371 memcpy_P(&settings, &default_settings, sizeof(settings_t)); | |
| 372 } | |
| 373 | |
| 374 /* Write the current settings out to EEPROM */ | |
| 375 static void | |
| 376 tempctrl_write_settings(void) { | |
| 377 uint16_t crc; | |
| 378 uint8_t *dptr; | |
| 379 int i; | |
| 380 | |
| 381 eeprom_busy_wait(); | |
| 382 eeprom_write_block(&settings, &ee_area.settings, sizeof(settings_t)); | |
| 383 | |
| 384 dptr = (uint8_t *)&settings; | |
| 385 crc = 0; | |
| 386 for (i = 0; i < sizeof(settings_t); i++) | |
| 387 crc = _crc16_update(crc, dptr[i]); | |
| 388 | |
| 389 eeprom_write_word(&ee_area.crc, crc); | |
| 390 } | |
| 391 | |
| 392 /* Set the relays to match the desired state */ | |
| 393 static void | |
| 394 setstate(char state) { | |
| 395 switch (state) { | |
| 396 case 'c': | |
| 397 PORTC = settings.coolbits; | |
| 398 break; | |
| 399 | |
| 400 case 'h': | |
| 401 PORTC = settings.heatbits; | |
| 402 break; | |
| 403 | |
| 404 default: | |
| 405 printf_P(PSTR("Unknown state %c, setting idle\r\n"), state); | |
| 406 /* fallthrough */ | |
| 407 | |
| 408 case 'i': | |
| 409 PORTC = settings.idlebits; | |
| 410 break; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 /* Handle user command | |
| 415 * | |
| 416 */ | |
| 417 void | |
| 418 tempctrl_cmd(char *buf) { | |
| 419 char cmd[6]; | |
| 420 int16_t data; | |
| 421 int i; | |
| 422 | |
| 423 i = sscanf_P(buf, PSTR("tc %5s %d"), cmd, &data); | |
| 424 | |
| 425 if (i == 1) { | |
| 426 if (!strcasecmp_P(cmd, PSTR("help"))) { | |
| 427 printf_P(PSTR( | |
| 428 "tc help This help\r\n" | |
| 429 "tc save Save settings to EEPROM\r\n" | |
| 430 "tc load Load or default settings from EEPROM\r\n" | |
| 431 "tc dflt Load defaults from flash\r\n" | |
| 432 "tc list List current settings\r\n" | |
| 433 "tc mode [achin] Change control mode, must be one of\r\n" | |
| 434 " a Auto\r\n" | |
| 435 " c Always cool\r\n" | |
| 436 " h Always heat\r\n" | |
| 437 " i Always idle\r\n" | |
| 438 " n Like idle but don't log anything\r\n" | |
| 439 "\r\n" | |
| 440 "tc X Y Set X to Y where X is one of\r\n" | |
| 441 " targ Target temperature\r\n" | |
| 442 " hys Hysteresis range\r\n" | |
| 443 " mhov Minimum heat overshoot\r\n" | |
| 444 " mcov Minimum cool overshoot\r\n" | |
| 445 " mcon Minimum cool on time\r\n" | |
| 446 " mcoff Minimum cool off time\r\n" | |
| 447 " mhin Minimum heat on time\r\n" | |
| 448 " mhoff Minimum heat off time\r\n" | |
| 449 " Times are in seconds\r\n" | |
| 450 " Temperatures are in hundredths of degrees Celcius\r\n" | |
| 451 )); | |
| 452 return; | |
| 453 } | |
| 454 | |
| 455 if (!strcasecmp_P(cmd, PSTR("save"))) { | |
| 456 tempctrl_write_settings(); | |
| 457 return; | |
| 458 } | |
| 459 if (!strcasecmp_P(cmd, PSTR("load"))) { | |
| 460 tempctrl_load_or_init_settings(); | |
| 461 return; | |
| 462 } | |
| 463 if (!strcasecmp_P(cmd, PSTR("dflt"))) { | |
| 464 tempctrl_default_settings(); | |
| 465 return; | |
| 466 } | |
| 467 if (!strcasecmp_P(cmd, PSTR("list"))) { | |
| 468 printf_P(PSTR("Fermenter ROM ID %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\r\n" | |
| 469 "Fridge ROM ID %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\r\n" | |
| 470 "Ambient ROM ID %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\r\n" | |
| 46 | 471 "Mode - %c, Target - %d, Hystersis - %d\r\n" |
| 41 | 472 "Min heat overshoot - %d, Min cool overshoot - %d\r\n" |
| 473 "Min cool on time - %d, Min cool off time - %d\r\n" | |
| 44 | 474 "Min heat on time - %d, Min heat off time - %d\r\n"), |
| 41 | 475 settings.fermenter_ROM[0], settings.fermenter_ROM[1], settings.fermenter_ROM[2], settings.fermenter_ROM[3], |
| 476 settings.fermenter_ROM[4], settings.fermenter_ROM[5], settings.fermenter_ROM[6], settings.fermenter_ROM[7], | |
| 477 settings.fridge_ROM[0], settings.fridge_ROM[1], settings.fridge_ROM[2], settings.fridge_ROM[3], | |
| 478 settings.fridge_ROM[4], settings.fridge_ROM[5], settings.fridge_ROM[6], settings.fridge_ROM[7], | |
| 479 settings.ambient_ROM[0], settings.ambient_ROM[1], settings.ambient_ROM[2], settings.ambient_ROM[3], | |
| 480 settings.ambient_ROM[4], settings.ambient_ROM[5], settings.ambient_ROM[6], settings.ambient_ROM[7], | |
| 46 | 481 settings.mode, settings.target_temp, settings.hysteresis, |
| 41 | 482 settings.minheatovershoot, settings.mincoolovershoot, |
| 483 settings.mincoolontime, settings.minheatontime, | |
| 484 settings.minheatontime, settings.minheatofftime); | |
| 485 return; | |
| 486 } | |
| 487 if (!strcasecmp_P(cmd, PSTR("mode"))) { | |
| 488 switch (buf[8]) { | |
| 489 case TC_MODE_AUTO: | |
| 490 case TC_MODE_HEAT: | |
| 491 case TC_MODE_COOL: | |
| 492 case TC_MODE_IDLE: | |
| 493 case TC_MODE_NOTHING: | |
| 494 settings.mode = buf[8]; | |
| 495 break; | |
| 496 | |
| 497 default: | |
| 498 printf_P(PSTR("Unknown mode character '%c'\r\n"), buf[8]); | |
| 499 break; | |
| 500 } | |
| 501 return; | |
| 502 } | |
| 503 | |
| 504 } | |
| 505 | |
| 506 if (i != 2) { | |
| 507 printf_P(PSTR("Unable to parse command\r\n")); | |
| 508 return; | |
| 509 } | |
| 510 | |
| 511 if (!strcasecmp_P(cmd, PSTR("targ"))) { | |
| 512 settings.target_temp = data; | |
| 513 } else if (!strcasecmp_P(cmd, PSTR("hys"))) { | |
| 514 settings.hysteresis = data; | |
| 515 } else if (!strcasecmp_P(cmd, PSTR("mhov"))) { | |
| 516 settings.minheatovershoot = data; | |
| 517 } else if (!strcasecmp_P(cmd, PSTR("mcov"))) { | |
| 518 settings.mincoolovershoot = data; | |
| 519 } else if (!strcasecmp_P(cmd, PSTR("mcon"))) { | |
| 520 settings.mincoolontime = data; | |
| 521 } else if (!strcasecmp_P(cmd, PSTR("mcoff"))) { | |
| 522 settings.mincoolofftime = data; | |
| 523 } else if (!strcasecmp_P(cmd, PSTR("mhon"))) { | |
| 524 settings.minheatontime = data; | |
| 525 } else if (!strcasecmp_P(cmd, PSTR("mhoff"))) { | |
| 526 settings.minheatofftime = data; | |
| 527 } else { | |
| 528 printf_P(PSTR("Unknown setting\r\n")); | |
| 529 return; | |
| 530 } | |
| 531 } | |
| 532 | |
| 533 static const PROGMEM char* | |
| 534 state2long(char s) { | |
| 535 switch (s) { | |
| 536 case 'i': | |
| 537 return PSTR("idle"); | |
| 538 break; | |
| 539 | |
| 540 case 'c': | |
| 541 return PSTR("cool"); | |
| 542 break; | |
| 543 | |
| 544 case 'h': | |
| 545 return PSTR("heat"); | |
| 546 break; | |
| 547 | |
| 548 case '-': | |
| 549 return PSTR("-"); | |
| 550 break; | |
| 551 | |
| 552 default: | |
| 553 return PSTR("unknown"); | |
| 554 break; | |
| 555 } | |
| 556 } | |
| 557 |