--- a/thermferm/units.c Tue Aug 05 11:57:05 2014 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,183 +0,0 @@
-/*****************************************************************************
- * Copyright (C) 2014
- *
- * Michiel Broek <mbroek at mbse dot eu>
- *
- * This file is part of the mbsePi-apps
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * mbsePi-apps is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with EC-65K; see the file COPYING. If not, write to the Free
- * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *****************************************************************************/
-
-#include "thermferm.h"
-#include "devices.h"
-#include "units.h"
-#include "xutil.h"
-
-
-extern int debug;
-extern sys_config Config;
-extern int my_shutdown;
-
-extern const char UNITMODE[5][8];
-
-
-
-int read_w1_28(char *address, int *val)
-{
- devices_list *device;
- int tmp;
-
- for (device = Config.devices; device; device = device->next) {
- if (strcmp(address, device->uuid) == 0) {
- tmp = device->value;
- *val = tmp;
- return device->present;
- }
- }
-
- return DEVPRESENT_NO;
-}
-
-
-
-#ifdef HAVE_WIRINGPI_H
-PI_THREAD (my_units_loop)
-#else
-void *my_units_loop(void *threadid)
-#endif
-{
- units_list *unit;
- int rc, temp, deviation;
-
- /*
- * Initialize units for processing
- */
- for (unit = Config.units; unit; unit = unit->next) {
- /*
- * Safety, turn everything off
- */
- unit->heater_state = unit->cooler_state = unit->fan_state = unit->door_state = 0;
- if (unit->profile && (int)unit->prof_started && (unit->mode == UNITMODE_PROFILE)) {
- syslog(LOG_NOTICE, "Starting unit %s profile %s", unit->name, unit->profile);
- } else if (unit->mode == UNITMODE_BEER) {
- syslog(LOG_NOTICE, "Starting unit %s beer cooler at %.1f degrees", unit->name, unit->beer_set);
- } else if (unit->mode == UNITMODE_FRIDGE) {
- syslog(LOG_NOTICE, "Starting unit %s as refridgerator at %.1f degrees", unit->name, unit->fridge_set);
- } else if (unit->mode == UNITMODE_NONE) {
- syslog(LOG_NOTICE, "Starting unit %s in inactive state", unit->name);
- } else {
- syslog(LOG_NOTICE, "Starting unit %s in off state", unit->name);
- }
- }
-
- syslog(LOG_NOTICE, "Thread my_units_loop started");
- if (debug)
- fprintf(stdout, "Thread my_units_loop started\n");
-
- /*
- * Loop forever until the external shutdown variable is set.
- */
- for (;;) {
-
- if (my_shutdown)
- break;
-
- /*
- * Update the state of all fermenter units
- */
- for (unit = Config.units; unit; unit = unit->next) {
-
- if (my_shutdown)
- break;
-
- if (unit->air_address) {
- rc = read_w1_28(unit->air_address, &temp);
- if (rc == DEVPRESENT_YES) {
- /*
- * It is possible to have read errors or extreme values.
- * This can happen with bad connections so we compare the
- * value with the previous one. If the difference is too
- * much, we don't send that value. That also means that if
- * the next value is ok again, it will be marked invalid too.
- * Maximum error is 40 degrees for now.
- */
- deviation = 40000;
- if ((unit->air_temperature == 0) ||
- (unit->air_temperature && (temp > (int)unit->air_temperature - deviation) && (temp < ((int)unit->air_temperature + deviation)))) {
- unit->air_temperature = temp;
- unit->air_state = 0;
- } else {
- syslog(LOG_NOTICE, "deviation error deviation=%d, old=%d new=%d", deviation, unit->air_temperature, temp);
- if (debug) {
- fprintf(stdout, "deviation error deviation=%d, old=%d new=%d\n", deviation, unit->air_temperature, temp);
- }
- }
- } else if (rc == DEVPRESENT_ERROR) {
- unit->air_state = 1;
- } else {
- unit->air_state = 2;
- }
- }
- if (my_shutdown)
- break;
-
- if (unit->beer_address) {
- rc = read_w1_28(unit->beer_address, &temp);
- if (rc == DEVPRESENT_YES) {
- deviation = 40000;
- if ((unit->beer_temperature == 0) ||
- (unit->beer_temperature && (temp > (int)unit->beer_temperature - deviation) && (temp < ((int)unit->beer_temperature + deviation)))) {
- unit->beer_temperature = temp;
- unit->beer_state = 0;
- } else {
- syslog(LOG_NOTICE, "deviation error deviation=%d, old=%d new=%d", deviation, unit->beer_temperature, temp);
- if (debug) {
- fprintf(stdout, "deviation error deviation=%d, old=%d new=%d\n", deviation, unit->beer_temperature, temp);
- }
- }
- } else if (rc == DEVPRESENT_ERROR) {
- unit->beer_state = 1;
- } else {
- unit->beer_state = 2;
- }
- }
- if (my_shutdown)
- break;
-
- }
- usleep(100000);
- }
-
- /*
- * Stop units processing in a neat way
- */
- for (unit = Config.units; unit; unit = unit->next) {
- /*
- * Turn everything off
- */
- unit->heater_state = unit->cooler_state = unit->fan_state = unit->door_state = 0;
- device_out(unit->heater_address, unit->heater_state);
- device_out(unit->cooler_address, unit->cooler_state);
- device_out(unit->fan_address, unit->fan_state);
- syslog(LOG_NOTICE, "Stopped unit %s mode %s", unit->name, UNITMODE[unit->mode]);
- }
-
- syslog(LOG_NOTICE, "Thread my_units_loop stopped");
- if (debug)
- fprintf(stdout, "Thread my_units_loop stopped\n");
- return 0;
-}
-
-