Mercurial > mbsePi-apps / file comparison
comparison: thermferm/devices.c
thermferm/devices.c
- changeset 657
- 38162f374842
- parent 656
- ca47c742a25d
- child 658
- b10d0f6337a3
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| 656:ca47c742a25d | 657:38162f374842 |
|---|---|
| 833 } | 833 } |
| 834 } | 834 } |
| 835 free(addr); | 835 free(addr); |
| 836 addr = NULL; | 836 addr = NULL; |
| 837 } /* if temperature sensor */ | 837 } /* if temperature sensor */ |
| 838 /* | |
| 839 * DS2413 Dual channel addressable switch | |
| 840 */ | |
| 841 if (strncmp(device->address, (char *)"3a", 2) == 0) { | |
| 842 addr = xstrcpy((char *)"/sys/bus/w1/devices/"); | |
| 843 addr = xstrcat(addr, device->address); | |
| 844 addr = xstrcat(addr, (char *)"/state"); | |
| 845 | |
| 846 if ((access(addr, R_OK)) == 0) { | |
| 847 if (device->present != DEVPRESENT_YES) { | |
| 848 syslog(LOG_NOTICE, "DS2413 %s is back", device->address); | |
| 849 pthread_mutex_lock(&mutexes[LOCK_DEVICES]); | |
| 850 device->present = DEVPRESENT_YES; | |
| 851 pthread_mutex_unlock(&mutexes[LOCK_DEVICES]); | |
| 852 } | |
| 853 /* | |
| 854 * First make sure that if this device is configured as input | |
| 855 * to drive the output high. | |
| 856 */ | |
| 857 if (device->direction == DEVDIR_IN_BIN) { | |
| 858 uint8_t state, output; | |
| 859 | |
| 860 if ((rc = read_w1(device->address, (char *)"state")) >= 0) { | |
| 861 state = (unsigned int)rc; | |
| 862 output = ((state & 0x02) >> 1) + ((state & 0x08) >> 2); /* Both latch states */ | |
| 863 if (device->subdevice == 0) { | |
| 864 output = (output & 0xfe); | |
| 865 output |= 0x01; | |
| 866 } else if (device->subdevice == 1) { | |
| 867 output = (output & 0xfd); | |
| 868 output |= 0x02; | |
| 869 } else { | |
| 870 output = 0xff; | |
| 871 } | |
| 872 write_w1(device->address, (char *)"output", output); | |
| 873 } | |
| 874 } | |
| 875 if ((rc = read_w1(device->address, (char *)"state")) >= 0) { | |
| 876 pthread_mutex_lock(&mutexes[LOCK_DEVICES]); | |
| 877 /* | |
| 878 * Read PIOA or PIOB pin state bits | |
| 879 */ | |
| 880 if (device->subdevice == 0) | |
| 881 device->value = (rc & 0x01) ? 0 : 1; | |
| 882 else if (device->subdevice == 1) | |
| 883 device->value = (rc & 0x04) ? 0 : 1; | |
| 884 device->timestamp = time(NULL); | |
| 885 pthread_mutex_unlock(&mutexes[LOCK_DEVICES]); | |
| 886 } | |
| 887 } else { | |
| 888 if (device->present != DEVPRESENT_NO) { | |
| 889 syslog(LOG_NOTICE, "DS2413 %s is missing", device->address); | |
| 890 pthread_mutex_lock(&mutexes[LOCK_DEVICES]); | |
| 891 device->present = DEVPRESENT_NO; | |
| 892 pthread_mutex_unlock(&mutexes[LOCK_DEVICES]); | |
| 893 } | |
| 894 } | |
| 895 free(addr); | |
| 896 addr = NULL; | |
| 897 } | |
| 898 | 838 |
| 899 break; | 839 break; |
| 900 | 840 |
| 901 case DEVTYPE_DHT: | 841 case DEVTYPE_DHT: |
| 902 /* | 842 /* |
