Mercurial > mbsePi-apps / file comparison
comparison: thermferm/devices.c
thermferm/devices.c
- changeset 392
- 034746506c3d
- parent 362
- c92651a54969
- child 393
- 220f2f30bf68
equal
deleted
inserted
replaced
| 391:a89b3ac7e97b | 392:034746506c3d |
|---|---|
| 166 } | 166 } |
| 167 | 167 |
| 168 #endif | 168 #endif |
| 169 | 169 |
| 170 | 170 |
| 171 /* | |
| 172 * Read one byte from a 1-wire device like a DS2413 | |
| 173 */ | |
| 171 int read_w1(char *address, char *file) | 174 int read_w1(char *address, char *file) |
| 172 { | 175 { |
| 173 char *addr = NULL; | 176 char *addr = NULL; |
| 174 int fn = -1, rc = -1, retries = 5; | 177 int fn = -1, rc = -1, retries = 5; |
| 175 uint8_t val; | 178 uint8_t val; |
| 185 | 188 |
| 186 while (retries--) { | 189 while (retries--) { |
| 187 if ((read(fn, &val, 1)) == 1) { | 190 if ((read(fn, &val, 1)) == 1) { |
| 188 rc = (int)val; | 191 rc = (int)val; |
| 189 goto leave; | 192 goto leave; |
| 190 // } else { | |
| 191 // syslog(LOG_NOTICE, "read_w1() read %s try=%d: %s", addr, retries, strerror(errno)); | |
| 192 } | 193 } |
| 193 } | 194 } |
| 194 syslog(LOG_NOTICE, "read_w1() read %s fatal: %s", addr, strerror(errno)); | 195 syslog(LOG_NOTICE, "read_w1() read %s fatal: %s", addr, strerror(errno)); |
| 195 | 196 |
| 196 } else { | 197 } else { |
| 212 return rc; | 213 return rc; |
| 213 } | 214 } |
| 214 | 215 |
| 215 | 216 |
| 216 | 217 |
| 218 /* | |
| 219 * Write a byte to a 1-wire device like a DS2413 | |
| 220 */ | |
| 217 int write_w1(char *address, char *file, uint8_t val) | 221 int write_w1(char *address, char *file, uint8_t val) |
| 218 { | 222 { |
| 219 char *addr = NULL; | 223 char *addr = NULL; |
| 220 int fn = -1, rc = -1, retries = 5; | 224 int fn = -1, rc = -1, retries = 5; |
| 221 | 225 |
| 384 piUnlock(LOCK_DEVICES); | 388 piUnlock(LOCK_DEVICES); |
| 385 #endif | 389 #endif |
| 386 | 390 |
| 387 return 0; | 391 return 0; |
| 388 } | 392 } |
| 393 | |
| 394 | |
| 395 /* | |
| 396 * Returns 0 if failed. | |
| 397 * Returns 1 if success, value contains new value. | |
| 398 */ | |
| 399 int device_in(char *uuid, int *value) | |
| 400 { | |
| 401 devices_list *device; | |
| 402 | |
| 403 if (uuid == NULL) | |
| 404 return 0; | |
| 405 | |
| 406 #ifdef HAVE_WIRINGPI_H | |
| 407 piLock(LOCK_DEVICES); | |
| 408 #endif | |
| 409 | |
| 410 for (device = Config.devices; device; device = device->next) { | |
| 411 if (! strcmp(uuid, device->uuid)) { | |
| 412 | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 #ifdef HAVE_WIRINGPI_H | |
| 417 piUnlock(LOCK_DEVICES); | |
| 418 #endif | |
| 419 | |
| 420 return 0; | |
| 421 } | |
| 422 | |
| 389 | 423 |
| 390 | 424 |
| 391 | 425 |
| 392 /* | 426 /* |
| 393 * Auto detect hotplugged or known to be present devices | 427 * Auto detect hotplugged or known to be present devices |
| 519 ndev->uuid = malloc(37); | 553 ndev->uuid = malloc(37); |
| 520 uuid_generate(uu); | 554 uuid_generate(uu); |
| 521 uuid_unparse(uu, ndev->uuid); | 555 uuid_unparse(uu, ndev->uuid); |
| 522 ndev->type = DEVTYPE_GPIO; | 556 ndev->type = DEVTYPE_GPIO; |
| 523 ndev->value = digitalRead(pin); | 557 ndev->value = digitalRead(pin); |
| 558 ndev->offset = 0; | |
| 524 ndev->present = DEVPRESENT_YES; | 559 ndev->present = DEVPRESENT_YES; |
| 525 ndev->address = xstrcpy((char *)"GPIO"); | 560 ndev->address = xstrcpy((char *)"GPIO"); |
| 526 snprintf(buf, 39, "Raspberry GPIO %d", i); | 561 snprintf(buf, 39, "Raspberry GPIO %d", i); |
| 527 ndev->description = xstrcpy(buf); | 562 ndev->description = xstrcpy(buf); |
| 528 ndev->subdevice = i; | 563 ndev->subdevice = i; |
| 846 break; | 881 break; |
| 847 | 882 |
| 848 #ifdef HAVE_WIRINGPI_H | 883 #ifdef HAVE_WIRINGPI_H |
| 849 case DEVTYPE_DHT: | 884 case DEVTYPE_DHT: |
| 850 /* | 885 /* |
| 851 * Make sure we don't read the sensor withing 2 seconds. | 886 * Make sure we don't read the sensor within 2 seconds. |
| 852 */ | 887 */ |
| 853 now = time(NULL); | 888 now = time(NULL); |
| 854 if ((int)(now - dht11_last) > 2) { | 889 if ((int)(now - dht11_last) > 2) { |
| 855 dht11_pin = device->gpiopin; | 890 dht11_pin = device->gpiopin; |
| 856 dht11Read(); | 891 dht11Read(); |
| 876 device->present = DEVPRESENT_ERROR; | 911 device->present = DEVPRESENT_ERROR; |
| 877 } | 912 } |
| 878 piUnlock(LOCK_DEVICES); | 913 piUnlock(LOCK_DEVICES); |
| 879 } | 914 } |
| 880 break; | 915 break; |
| 916 | |
| 917 case DEVTYPE_GPIO: | |
| 918 if (device->direction == DEVDIR_IN_BIN) { | |
| 919 piLock(LOCK_DEVICES); | |
| 920 device->value = digitalRead(device->gpiopin); | |
| 921 device->offset = 0; | |
| 922 device->timestamp = time(NULL); | |
| 923 piUnlock(LOCK_DEVICES); | |
| 924 } | |
| 925 break; | |
| 926 | |
| 881 #endif | 927 #endif |
| 882 #ifdef USE_SIMULATOR | 928 #ifdef USE_SIMULATOR |
| 883 case DEVTYPE_SIM: | 929 case DEVTYPE_SIM: |
| 884 #ifdef HAVE_WIRINGPI_H | 930 #ifdef HAVE_WIRINGPI_H |
| 885 piLock(LOCK_DEVICES); | 931 piLock(LOCK_DEVICES); |
