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main.cpp
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main.cpp
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/* OpenSprinkler Unified (AVR/RPI/BBB/LINUX) Firmware
* Copyright (C) 2015 by Ray Wang ([email protected])
*
* Main loop
* Feb 2015 @ OpenSprinkler.com
*
* This file is part of the OpenSprinkler Firmware
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <limits.h>
#include "OpenSprinkler.h"
#include "program.h"
#include "weather.h"
#include "server.h"
#if defined(ARDUINO)
#include "SdFat.h"
#include "Wire.h"
byte Ethernet::buffer[ETHER_BUFFER_SIZE]; // Ethernet packet buffer
SdFat sd; // SD card object
unsigned long getNtpTime();
#else // header and defs for RPI/BBB
#include <sys/stat.h>
#include <netdb.h>
#include "etherport.h"
#include "gpio.h"
char ether_buffer[ETHER_BUFFER_SIZE];
EthernetServer *m_server = 0;
EthernetClient *m_client = 0;
#endif
void reset_all_stations();
void reset_all_stations_immediate();
void push_message(byte type, uint32_t lval=0, float fval=0.f, const char* sval=NULL);
void manual_start_program(byte, byte);
void httpget_callback(byte, uint16_t, uint16_t);
// Small variations have been added to the timing values below
// to minimize conflicting events
#define NTP_SYNC_INTERVAL 86403L // NYP sync interval, 24 hrs
#define RTC_SYNC_INTERVAL 60 // RTC sync interval, 60 secs
#define CHECK_NETWORK_INTERVAL 601 // Network checking timeout, 10 minutes
#define CHECK_WEATHER_TIMEOUT 3601 // Weather check interval: 1 hour
#define CHECK_WEATHER_SUCCESS_TIMEOUT 86433L // Weather check success interval: 24 hrs
#define LCD_BACKLIGHT_TIMEOUT 15 // LCD backlight timeout: 15 secs
#define PING_TIMEOUT 200 // Ping test timeout: 200 ms
extern char tmp_buffer[]; // scratch buffer
BufferFiller bfill; // buffer filler
// ====== Object defines ======
OpenSprinkler os; // OpenSprinkler object
ProgramData pd; // ProgramdData object
/* ====== Robert Hillman (RAH)'s implementation of flow sensor ======
* flow_begin - time when valve turns on
* flow_start - time when flow starts being measured (i.e. 2 mins after flow_begin approx
* flow_stop - time when valve turns off (last rising edge pulse detected before off)
* flow_gallons - total # of gallons+1 from flow_start to flow_stop
* flow_last_gpm - last flow rate measured (averaged over flow_gallons) from last valve stopped (used to write to log file). */
ulong flow_begin, flow_start, flow_stop, flow_gallons;
float flow_last_gpm=0;
volatile ulong flow_count = 0;
/** Flow sensor interrupt service routine */
void flow_isr() {
if(os.options[OPTION_SENSOR_TYPE]!=SENSOR_TYPE_FLOW) return;
ulong curr = millis();
if(curr-os.flowcount_time_ms < 50) return; // debounce threshold: 50ms
flow_count++;
os.flowcount_time_ms = curr;
/* RAH implementation of flow sensor */
if (flow_start==0) { flow_gallons=0; flow_start=curr;} // if first pulse, record time
if ((curr-flow_start)<90000) { flow_gallons=0; } // wait 90 seconds before recording flow_begin
else { if (flow_gallons==1) { flow_begin = curr;}}
flow_stop = curr; // get time in ms for stop
flow_gallons++; // increment gallon count for each interrupt
/* End of RAH implementation of flow sensor */
}
#if defined(ARDUINO)
// ====== UI defines ======
static char ui_anim_chars[3] = {'.', 'o', 'O'};
#define UI_STATE_DEFAULT 0
#define UI_STATE_DISP_IP 1
#define UI_STATE_DISP_GW 2
#define UI_STATE_RUNPROG 3
static byte ui_state = UI_STATE_DEFAULT;
static byte ui_state_runprog = 0;
void ui_state_machine() {
if (!os.button_timeout) {
os.lcd_set_brightness(0);
ui_state = UI_STATE_DEFAULT; // also recover to default state
}
// read button, if something is pressed, wait till release
byte button = os.button_read(BUTTON_WAIT_HOLD);
if (button & BUTTON_FLAG_DOWN) { // repond only to button down events
os.button_timeout = LCD_BACKLIGHT_TIMEOUT;
os.lcd_set_brightness(1);
} else {
return;
}
switch(ui_state) {
case UI_STATE_DEFAULT:
switch (button & BUTTON_MASK) {
case BUTTON_1:
if (button & BUTTON_FLAG_HOLD) { // holding B1: stop all stations
if (digitalRead(PIN_BUTTON_3)==0) { // if B3 is pressed while holding B1, run a short test (internal test)
manual_start_program(255, 0);
} else if (digitalRead(PIN_BUTTON_2)==0) { // if B2 is pressed while holding B1, display gateway IP
os.lcd_print_ip(ether.gwip, 0);
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR("(gwip)"));
ui_state = UI_STATE_DISP_IP;
} else {
reset_all_stations();
}
} else { // clicking B1: display device IP and port
os.lcd_print_ip(ether.myip, 0);
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR(":"));
os.lcd.print(ether.hisport);
os.lcd_print_pgm(PSTR(" (osip)"));
ui_state = UI_STATE_DISP_IP;
}
break;
case BUTTON_2:
if (button & BUTTON_FLAG_HOLD) { // holding B2: reboot
if (digitalRead(PIN_BUTTON_1)==0) { // if B1 is pressed while holding B2, display external IP
os.lcd_print_ip((byte*)(&os.nvdata.external_ip), 1);
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR("(eip)"));
ui_state = UI_STATE_DISP_IP;
} else if (digitalRead(PIN_BUTTON_3)==0) { // if B3 is pressed while holding B2, display last successful weather call
os.lcd.clear();
os.lcd_print_time(os.checkwt_success_lasttime);
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR("(lswc)"));
ui_state = UI_STATE_DISP_IP;
} else {
os.reboot_dev();
}
} else { // clicking B2: display MAC and gate way IP
os.lcd.clear();
os.lcd_print_mac(ether.mymac);
ui_state = UI_STATE_DISP_GW;
}
break;
case BUTTON_3:
if (button & BUTTON_FLAG_HOLD) { // holding B3: go to main menu
os.lcd_print_line_clear_pgm(PSTR("Run a Program:"), 0);
os.lcd_print_line_clear_pgm(PSTR("Click B3 to list"), 1);
ui_state = UI_STATE_RUNPROG;
} else { // clicking B3: switch board display (cycle through master and all extension boards)
os.status.display_board = (os.status.display_board + 1) % (os.nboards);
}
break;
}
break;
case UI_STATE_DISP_IP:
case UI_STATE_DISP_GW:
ui_state = UI_STATE_DEFAULT;
break;
case UI_STATE_RUNPROG:
if ((button & BUTTON_MASK)==BUTTON_3) {
if (button & BUTTON_FLAG_HOLD) {
// start
manual_start_program(ui_state_runprog, 0);
ui_state = UI_STATE_DEFAULT;
} else {
ui_state_runprog = (ui_state_runprog+1) % (pd.nprograms+1);
os.lcd_print_line_clear_pgm(PSTR("Hold B3 to start"), 0);
if(ui_state_runprog > 0) {
ProgramStruct prog;
pd.read(ui_state_runprog-1, &prog);
os.lcd_print_line_clear_pgm(PSTR(" "), 1);
os.lcd.setCursor(0, 1);
os.lcd.print((int)ui_state_runprog);
os.lcd_print_pgm(PSTR(". "));
os.lcd.print(prog.name);
} else {
os.lcd_print_line_clear_pgm(PSTR("0. Test (1 min)"), 1);
}
}
}
break;
}
}
// ======================
// Setup Function
// ======================
void do_setup() {
/* Clear WDT reset flag. */
MCUSR &= ~(1<<WDRF);
DEBUG_BEGIN(9600);
DEBUG_PRINTLN("started.");
os.begin(); // OpenSprinkler init
os.options_setup(); // Setup options
pd.init(); // ProgramData init
setSyncInterval(RTC_SYNC_INTERVAL); // RTC sync interval
// if rtc exists, sets it as time sync source
setSyncProvider(RTC.get);
os.lcd_print_time(os.now_tz()); // display time to LCD
// enable WDT
/* In order to change WDE or the prescaler, we need to
* set WDCE (This will allow updates for 4 clock cycles).
*/
WDTCSR |= (1<<WDCE) | (1<<WDE);
/* set new watchdog timeout prescaler value */
WDTCSR = 1<<WDP3 | 1<<WDP0; // 8.0 seconds
/* Enable the WD interrupt (note no reset). */
WDTCSR |= _BV(WDIE);
if (os.start_network()) { // initialize network
os.status.network_fails = 0;
} else {
os.status.network_fails = 1;
}
os.status.req_network = 0;
os.status.req_ntpsync = 1;
os.apply_all_station_bits(); // reset station bits
os.button_timeout = LCD_BACKLIGHT_TIMEOUT;
}
// Arduino software reset function
void(* sysReset) (void) = 0;
volatile byte wdt_timeout = 0;
/** WDT interrupt service routine */
ISR(WDT_vect)
{
wdt_timeout += 1;
// this isr is called every 8 seconds
if (wdt_timeout > 15) {
// reset after 120 seconds of timeout
sysReset();
}
}
#else
void do_setup() {
initialiseEpoch(); // initialize time reference for millis() and micros()
os.begin(); // OpenSprinkler init
os.options_setup(); // Setup options
pd.init(); // ProgramData init
if (os.start_network()) { // initialize network
DEBUG_PRINTLN("network established.");
os.status.network_fails = 0;
} else {
DEBUG_PRINTLN("network failed.");
os.status.network_fails = 1;
}
os.status.req_network = 0;
}
#endif
void write_log(byte type, ulong curr_time);
void schedule_all_stations(ulong curr_time);
void turn_off_station(byte sid, ulong curr_time);
void process_dynamic_events(ulong curr_time);
void check_network();
void check_weather();
void perform_ntp_sync();
void delete_log(char *name);
void handle_web_request(char *p);
/** Main Loop */
void do_loop()
{
static ulong last_time = 0;
static ulong last_minute = 0;
byte bid, sid, s, pid, qid, bitvalue;
ProgramStruct prog;
os.status.mas = os.options[OPTION_MASTER_STATION];
os.status.mas2= os.options[OPTION_MASTER_STATION_2];
time_t curr_time = os.now_tz();
// ====== Process Ethernet packets ======
#if defined(ARDUINO) // Process Ethernet packets for Arduino
uint16_t pos=ether.packetLoop(ether.packetReceive());
if (pos>0) { // packet received
handle_web_request((char*)Ethernet::buffer+pos);
}
wdt_reset(); // reset watchdog timer
wdt_timeout = 0;
ui_state_machine();
#else // Process Ethernet packets for RPI/BBB
EthernetClient client = m_server->available();
if (client) {
while(true) {
int len = client.read((uint8_t*) ether_buffer, ETHER_BUFFER_SIZE);
if (len <=0) {
if(!client.connected()) {
break;
} else {
continue;
}
} else {
m_client = &client;
ether_buffer[len] = 0; // put a zero at the end of the packet
handle_web_request(ether_buffer);
m_client = 0;
break;
}
}
}
#endif // Process Ethernet packets
// if 1 second has passed
if (last_time != curr_time) {
last_time = curr_time;
if (os.button_timeout) os.button_timeout--;
#if defined(ARDUINO)
if (!ui_state)
os.lcd_print_time(os.now_tz()); // print time
#endif
// ====== Check raindelay status ======
if (os.status.rain_delayed) {
if (curr_time >= os.nvdata.rd_stop_time) { // rain delay is over
os.raindelay_stop();
}
} else {
if (os.nvdata.rd_stop_time > curr_time) { // rain delay starts now
os.raindelay_start();
}
}
// ====== Check controller status changes and write log ======
if (os.old_status.rain_delayed != os.status.rain_delayed) {
if (os.status.rain_delayed) {
// rain delay started, record time
os.raindelay_start_time = curr_time;
push_message(IFTTT_RAINSENSOR, LOGDATA_RAINDELAY, 1);
} else {
// rain delay stopped, write log
write_log(LOGDATA_RAINDELAY, curr_time);
push_message(IFTTT_RAINSENSOR, LOGDATA_RAINDELAY, 0);
}
os.old_status.rain_delayed = os.status.rain_delayed;
}
// ====== Check rain sensor status ======
if (os.options[OPTION_SENSOR_TYPE] == SENSOR_TYPE_RAIN) { // if a rain sensor is connected
os.rainsensor_status();
if (os.old_status.rain_sensed != os.status.rain_sensed) {
if (os.status.rain_sensed) {
// rain sensor on, record time
os.sensor_lasttime = curr_time;
push_message(IFTTT_RAINSENSOR, LOGDATA_RAINSENSE, 1);
} else {
// rain sensor off, write log
if (curr_time>os.sensor_lasttime+10) { // add a 10 second threshold
// to avoid faulty rain sensors generating
// too many log records
write_log(LOGDATA_RAINSENSE, curr_time);
push_message(IFTTT_RAINSENSOR, LOGDATA_RAINSENSE, 0);
}
}
os.old_status.rain_sensed = os.status.rain_sensed;
}
}
// ===== Check program switch status =====
if (os.programswitch_status(curr_time)) {
reset_all_stations_immediate(); // immediately stop all stations
if(pd.nprograms > 0) manual_start_program(1, 0);
}
// ====== Schedule program data ======
ulong curr_minute = curr_time / 60;
boolean match_found = false;
RuntimeQueueStruct *q;
// since the granularity of start time is minute
// we only need to check once every minute
if (curr_minute != last_minute) {
last_minute = curr_minute;
// check through all programs
for(pid=0; pid<pd.nprograms; pid++) {
pd.read(pid, &prog);
if(prog.check_match(curr_time)) {
// program match found
// process all selected stations
for(sid=0;sid<os.nstations;sid++) {
bid=sid>>3;
s=sid&0x07;
// skip if the station is a master station (because master cannot be scheduled independently
if ((os.status.mas==sid+1) || (os.status.mas2==sid+1))
continue;
// if station has non-zero water time and the station is not disabled
if (prog.durations[sid] && !(os.station_attrib_bits_read(ADDR_NVM_STNDISABLE+bid)&(1<<s))) {
// water time is scaled by watering percentage
ulong water_time = water_time_resolve(prog.durations[sid]);
// if the program is set to use weather scaling
if (prog.use_weather) {
byte wl = os.options[OPTION_WATER_PERCENTAGE];
water_time = water_time * wl / 100;
if (wl < 20 && water_time < 10) // if water_percentage is less than 20% and water_time is less than 10 seconds
// do not water
water_time = 0;
}
if (water_time) {
// check if water time is still valid
// because it may end up being zero after scaling
q = pd.enqueue();
if (q) {
q->st = 0;
q->dur = water_time;
q->sid = sid;
q->pid = pid+1;
match_found = true;
} else {
// queue is full
}
}// if water_time
}// if prog.durations[sid]
}// for sid
if(match_found) push_message(IFTTT_PROGRAM_SCHED, pid, prog.use_weather?os.options[OPTION_WATER_PERCENTAGE]:100);
}// if check_match
}// for pid
// calculate start and end time
if (match_found) {
schedule_all_stations(curr_time);
// For debugging: print out queued elements
DEBUG_PRINT("en:");
for(q=pd.queue;q<pd.queue+pd.nqueue;q++) {
DEBUG_PRINT("[");
DEBUG_PRINT(q->sid);
DEBUG_PRINT(",");
DEBUG_PRINT(q->dur);
DEBUG_PRINT(",");
DEBUG_PRINT(q->st);
DEBUG_PRINT("]");
}
DEBUG_PRINTLN("");
}
}//if_check_current_minute
// ====== Run program data ======
// Check if a program is running currently
// If so, do station run-time keeping
if (os.status.program_busy){
// first, go through run time queue to assign queue elements to stations
q = pd.queue;
qid=0;
for(;q<pd.queue+pd.nqueue;q++,qid++) {
sid=q->sid;
byte sqi=pd.station_qid[sid];
// skip if station is already assigned a queue element
// and that queue element has an earlier start time
if(sqi<255 && pd.queue[sqi].st<q->st) continue;
// otherwise assign the queue element to station
pd.station_qid[sid]=qid;
}
// next, go through the stations and perform time keeping
for(bid=0;bid<os.nboards; bid++) {
bitvalue = os.station_bits[bid];
for(s=0;s<8;s++) {
byte sid = bid*8+s;
// skip master station
if (os.status.mas == sid+1) continue;
if (os.status.mas2== sid+1) continue;
if (pd.station_qid[sid]==255) continue;
q = pd.queue + pd.station_qid[sid];
// check if this station is scheduled, either running or waiting to run
if (q->st > 0) {
// if so, check if we should turn it off
if (curr_time >= q->st+q->dur) {
turn_off_station(sid, curr_time);
}
}
// if current station is not running, check if we should turn it on
if(!((bitvalue>>s)&1)) {
if (curr_time >= q->st && curr_time < q->st+q->dur) {
//turn_on_station(sid);
os.set_station_bit(sid, 1);
// RAH implementation of flow sensor
flow_start=0;
} //if curr_time > scheduled_start_time
} // if current station is not running
}//end_s
}//end_bid
// finally, go through the queue again and clear up elements marked for removal
int qi;
for(qi=pd.nqueue-1;qi>=0;qi--) {
q=pd.queue+qi;
if(!q->dur || curr_time>=q->st+q->dur) {
pd.dequeue(qi);
}
}
// process dynamic events
process_dynamic_events(curr_time);
// activate / deactivate valves
os.apply_all_station_bits();
// check through runtime queue, calculate the last stop time of sequential stations
pd.last_seq_stop_time = 0;
ulong sst;
byte re=os.options[OPTION_REMOTE_EXT_MODE];
q = pd.queue;
for(;q<pd.queue+pd.nqueue;q++) {
sid = q->sid;
bid = sid>>3;
s = sid&0x07;
// check if any sequential station has a valid stop time
// and the stop time must be larger than curr_time
sst = q->st + q->dur;
if (sst>curr_time) {
// only need to update last_seq_stop_time for sequential stations
if (os.station_attrib_bits_read(ADDR_NVM_STNSEQ+bid)&(1<<s) && !re) {
pd.last_seq_stop_time = (sst>pd.last_seq_stop_time ) ? sst : pd.last_seq_stop_time;
}
}
}
// if the runtime queue is empty
// reset all stations
if (!pd.nqueue) {
// turn off all stations
os.clear_all_station_bits();
os.apply_all_station_bits();
// reset runtime
pd.reset_runtime();
// reset program busy bit
os.status.program_busy = 0;
// log flow sensor reading if flow sensor is used
if(os.options[OPTION_SENSOR_TYPE]==SENSOR_TYPE_FLOW) {
write_log(LOGDATA_FLOWSENSE, curr_time);
push_message(IFTTT_FLOWSENSOR, (flow_count>os.flowcount_log_start)?(flow_count-os.flowcount_log_start):0);
}
// in case some options have changed while executing the program
os.status.mas = os.options[OPTION_MASTER_STATION]; // update master station
os.status.mas2= os.options[OPTION_MASTER_STATION_2]; // update master2 station
}
}//if_some_program_is_running
// handle master
if (os.status.mas>0) {
int16_t mas_on_adj = water_time_decode_signed(os.options[OPTION_MASTER_ON_ADJ]);
int16_t mas_off_adj= water_time_decode_signed(os.options[OPTION_MASTER_OFF_ADJ]);
byte masbit = 0;
os.station_attrib_bits_load(ADDR_NVM_MAS_OP, (byte*)tmp_buffer); // tmp_buffer now stores masop_bits
for(sid=0;sid<os.nstations;sid++) {
// skip if this is the master station
if (os.status.mas == sid+1) continue;
bid = sid>>3;
s = sid&0x07;
// if this station is running and is set to activate master
if ((os.station_bits[bid]&(1<<s)) && (tmp_buffer[bid]&(1<<s))) {
q=pd.queue+pd.station_qid[sid];
// check if timing is within the acceptable range
if (curr_time >= q->st + mas_on_adj &&
curr_time <= q->st + q->dur + mas_off_adj) {
masbit = 1;
break;
}
}
}
os.set_station_bit(os.status.mas-1, masbit);
}
// handle master2
if (os.status.mas2>0) {
int16_t mas_on_adj_2 = water_time_decode_signed(os.options[OPTION_MASTER_ON_ADJ_2]);
int16_t mas_off_adj_2= water_time_decode_signed(os.options[OPTION_MASTER_OFF_ADJ_2]);
byte masbit2 = 0;
os.station_attrib_bits_load(ADDR_NVM_MAS_OP_2, (byte*)tmp_buffer); // tmp_buffer now stores masop2_bits
for(sid=0;sid<os.nstations;sid++) {
// skip if this is the master station
if (os.status.mas2 == sid+1) continue;
bid = sid>>3;
s = sid&0x07;
// if this station is running and is set to activate master
if ((os.station_bits[bid]&(1<<s)) && (tmp_buffer[bid]&(1<<s))) {
q=pd.queue+pd.station_qid[sid];
// check if timing is within the acceptable range
if (curr_time >= q->st + mas_on_adj_2 &&
curr_time <= q->st + q->dur + mas_off_adj_2) {
masbit2 = 1;
break;
}
}
}
os.set_station_bit(os.status.mas2-1, masbit2);
}
// process dynamic events
process_dynamic_events(curr_time);
// activate/deactivate valves
os.apply_all_station_bits();
#if defined(ARDUINO)
// process LCD display
if (!ui_state)
os.lcd_print_station(1, ui_anim_chars[curr_time%3]);
// check safe_reboot condition
if (os.status.safe_reboot) {
// if no program is running at the moment
if (!os.status.program_busy) {
// and if no program is scheduled to run in the next minute
bool willrun = false;
for(pid=0; pid<pd.nprograms; pid++) {
pd.read(pid, &prog);
if(prog.check_match(curr_time+60)) {
willrun = true;
break;
}
}
if (!willrun) {
os.reboot_dev();
}
}
}
#endif
// real-time flow count
static ulong flowcount_rt_start = 0;
if (os.options[OPTION_SENSOR_TYPE]==SENSOR_TYPE_FLOW) {
if (curr_time % FLOWCOUNT_RT_WINDOW == 0) {
os.flowcount_rt = (flow_count > flowcount_rt_start) ? flow_count - flowcount_rt_start: 0;
flowcount_rt_start = flow_count;
}
}
// perform ntp sync
if (curr_time % NTP_SYNC_INTERVAL == 0) os.status.req_ntpsync = 1;
perform_ntp_sync();
// check network connection
if (curr_time && (curr_time % CHECK_NETWORK_INTERVAL==0)) os.status.req_network = 1;
check_network();
// check weather
check_weather();
byte wuf = os.weather_update_flag;
if(wuf) {
if((wuf&WEATHER_UPDATE_EIP) | (wuf&WEATHER_UPDATE_WL)) {
// at the moment, we only send notification if water level or external IP changed
// the other changes, such as sunrise, sunset changes are ignored for notification
push_message(IFTTT_WEATHER_UPDATE, (wuf&WEATHER_UPDATE_EIP)?os.nvdata.external_ip:0,
(wuf&WEATHER_UPDATE_WL)?os.options[OPTION_WATER_PERCENTAGE]:-1);
}
os.weather_update_flag = 0;
}
static byte reboot_notification = 1;
if(reboot_notification) {
reboot_notification = 0;
push_message(IFTTT_REBOOT);
}
}
#if !defined(ARDUINO)
delay(1); // For OSPI/OSBO/LINUX, sleep 1 ms to minimize CPU usage
#endif
}
/** Make weather query */
void check_weather() {
// do not check weather if
// - network check has failed, or
// - the controller is in remote extension mode
if (os.status.network_fails>0 || os.options[OPTION_REMOTE_EXT_MODE]) return;
ulong ntz = os.now_tz();
if (os.checkwt_success_lasttime && (ntz > os.checkwt_success_lasttime + CHECK_WEATHER_SUCCESS_TIMEOUT)) {
// if weather check has failed to return for too long, restart network
os.checkwt_success_lasttime = 0;
// mark for safe restart
os.status.safe_reboot = 1;
return;
}
if (!os.checkwt_lasttime || (ntz > os.checkwt_lasttime + CHECK_WEATHER_TIMEOUT)) {
os.checkwt_lasttime = ntz;
GetWeather();
}
}
/** Turn off a station
* This function turns off a scheduled station
* and writes log record
*/
void turn_off_station(byte sid, ulong curr_time) {
os.set_station_bit(sid, 0);
byte qid = pd.station_qid[sid];
// ignore if we are turning off a station that's not running or scheduled to run
if (qid>=pd.nqueue) return;
// RAH implementation of flow sensor
if (flow_gallons>1) {flow_last_gpm = (float) 60000/(float)((flow_stop-flow_begin)/(flow_gallons-1)); }// RAH calculate GPM, 1 pulse per gallon
else {flow_last_gpm = 0;} // RAH if not one gallon (two pulses) measured then record 0 gpm
RuntimeQueueStruct *q = pd.queue+qid;
// check if the current time is past the scheduled start time,
// because we may be turning off a station that hasn't started yet
if (curr_time > q->st) {
// record lastrun log (only for non-master stations)
if(os.status.mas!=(sid+1) && os.status.mas2!=(sid+1)) {
pd.lastrun.station = sid;
pd.lastrun.program = q->pid;
pd.lastrun.duration = curr_time - q->st;
pd.lastrun.endtime = curr_time;
// log station run
write_log(LOGDATA_STATION, curr_time);
push_message(IFTTT_STATION_RUN, sid, pd.lastrun.duration);
}
}
// dequeue the element
pd.dequeue(qid);
pd.station_qid[sid] = 0xFF;
}
/** Process dynamic events
* such as rain delay, rain sensing
* and turn off stations accordingly
*/
void process_dynamic_events(ulong curr_time) {
// check if rain is detected
bool rain = false;
bool en = os.status.enabled ? true : false;
if (os.status.rain_delayed || (os.status.rain_sensed && os.options[OPTION_SENSOR_TYPE] == SENSOR_TYPE_RAIN)) {
rain = true;
}
byte sid, s, bid, qid, rbits;
for(bid=0;bid<os.nboards;bid++) {
rbits = os.station_attrib_bits_read(ADDR_NVM_IGNRAIN+bid);
for(s=0;s<8;s++) {
sid=bid*8+s;
// ignore master stations because they are handled separately
if (os.status.mas == sid+1) continue;
if (os.status.mas2== sid+1) continue;
// If this is a normal program (not a run-once or test program)
// and either the controller is disabled, or
// if raining and ignore rain bit is cleared
// FIX ME
qid = pd.station_qid[sid];
if(qid==255) continue;
RuntimeQueueStruct *q = pd.queue + qid;
if ((q->pid<99) && (!en || (rain && !(rbits&(1<<s)))) ) {
turn_off_station(sid, curr_time);
}
}
}
}
/** Scheduler
* This function loops through the queue
* and schedules the start time of each station
*/
void schedule_all_stations(ulong curr_time) {
ulong con_start_time = curr_time + 1; // concurrent start time
ulong seq_start_time = con_start_time; // sequential start time
int16_t station_delay = water_time_decode_signed(os.options[OPTION_STATION_DELAY_TIME]);
// if the sequential queue has stations running
if (pd.last_seq_stop_time > curr_time) {
seq_start_time = pd.last_seq_stop_time + station_delay;
}
RuntimeQueueStruct *q = pd.queue;
byte re = os.options[OPTION_REMOTE_EXT_MODE];
// go through runtime queue and calculate start time of each station
for(;q<pd.queue+pd.nqueue;q++) {
if(q->st) continue; // if this queue element has already been scheduled, skip
if(!q->dur) continue; // if the element has been marked to reset, skip
byte sid=q->sid;
byte bid=sid>>3;
byte s=sid&0x07;
// if this is a sequential station and the controller is not in remote extension mode
// use sequential scheduling. station delay time apples
if (os.station_attrib_bits_read(ADDR_NVM_STNSEQ+bid)&(1<<s) && !re) {
// sequential scheduling
q->st = seq_start_time;
seq_start_time += q->dur;
seq_start_time += station_delay; // add station delay time
} else {
// otherwise, concurrent scheduling
q->st = con_start_time;
// stagger concurrent stations by 1 second
con_start_time++;
}
DEBUG_PRINT("[");
DEBUG_PRINT(sid);
DEBUG_PRINT(":");
DEBUG_PRINT(q->st);
DEBUG_PRINT(",");
DEBUG_PRINT(q->dur);
DEBUG_PRINT("]");
DEBUG_PRINTLN(pd.nqueue);
if (!os.status.program_busy) {
os.status.program_busy = 1; // set program busy bit
// start flow count
if(os.options[OPTION_SENSOR_TYPE] == SENSOR_TYPE_FLOW) { // if flow sensor is connected
os.flowcount_log_start = flow_count;
os.sensor_lasttime = curr_time;
}
}
}
}
/** Immediately reset all stations
* No log records will be written
*/
void reset_all_stations_immediate() {
os.clear_all_station_bits();
os.apply_all_station_bits();
pd.reset_runtime();
}
/** Reset all stations
* This function sets the duration of
* every station to 0, which causes
* all stations to turn off in the next processing cycle.
* Stations will be logged
*/
void reset_all_stations() {
RuntimeQueueStruct *q = pd.queue;
// go through runtime queue and assign water time to 0
for(;q<pd.queue+pd.nqueue;q++) {
q->dur = 0;
}
}
/** Manually start a program
* If pid==0, this is a test program (1 minute per station)
* If pid==255, this is a short test program (2 second per station)
* If pid > 0. run program pid-1
*/
void manual_start_program(byte pid, byte uwt) {
boolean match_found = false;
reset_all_stations_immediate();
ProgramStruct prog;
ulong dur;
byte sid, bid, s;
if ((pid>0)&&(pid<255)) {
pd.read(pid-1, &prog);
push_message(IFTTT_PROGRAM_SCHED, pid-1, uwt?os.options[OPTION_WATER_PERCENTAGE]:100, "");
}
for(sid=0;sid<os.nstations;sid++) {
bid=sid>>3;
s=sid&0x07;
// skip if the station is a master station (because master cannot be scheduled independently
if ((os.status.mas==sid+1) || (os.status.mas2==sid+1))
continue;
dur = 60;
if(pid==255) dur=2;
else if(pid>0)
dur = water_time_resolve(prog.durations[sid]);
if(uwt) {
dur = dur * os.options[OPTION_WATER_PERCENTAGE] / 100;
}
if(dur>0 && !(os.station_attrib_bits_read(ADDR_NVM_STNDISABLE+bid)&(1<<s))) {
RuntimeQueueStruct *q = pd.enqueue();
if (q) {
q->st = 0;
q->dur = dur;
q->sid = sid;
q->pid = 254;
match_found = true;
}
}
}
if(match_found) {
schedule_all_stations(os.now_tz());
}
}
// ==========================================
// ====== PUSH NOTIFICATION FUNCTIONS =======
// ==========================================
void ip2string(char* str, byte ip[4]) {
for(byte i=0;i<4;i++) {
itoa(ip[i], str+strlen(str), 10);
if(i!=3) strcat(str, ".");
}
}
void push_message(byte type, uint32_t lval, float fval, const char* sval) {
#if !defined(ARDUINO) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega1284__)
static const char* server = DEFAULT_IFTTT_URL;
static char key[IFTTT_KEY_MAXSIZE];
static char postval[TMP_BUFFER_SIZE];
// check if this type of event is enabled for push notification
if((os.options[OPTION_IFTTT_ENABLE]&type) == 0) return;
key[0] = 0;
read_from_file(ifkey_filename, key);
key[IFTTT_KEY_MAXSIZE-1]=0;
if(strlen(key)==0) return;
#if defined(ARDUINO)
uint16_t _port = ether.hisport; // make a copy of the original port
ether.hisport = 80;
#endif
strcpy_P(postval, PSTR("{\"value1\":\""));
switch(type) {
case IFTTT_STATION_RUN:
strcat_P(postval, PSTR("Station "));
os.get_station_name(lval, postval+strlen(postval));
strcat_P(postval, PSTR(" closed. It ran for "));
itoa((int)fval/60, postval+strlen(postval), 10);
strcat_P(postval, PSTR(" minutes "));
itoa((int)fval%60, postval+strlen(postval), 10);
strcat_P(postval, PSTR(" seconds."));
if(os.options[OPTION_SENSOR_TYPE]==SENSOR_TYPE_FLOW) {
strcat_P(postval, PSTR(" Flow rate: "));
#if defined(ARDUINO)
dtostrf(flow_last_gpm,5,2,postval+strlen(postval));
#else
sprintf(tmp_buffer+strlen(tmp_buffer), "%5.2f", flow_last_gpm);
#endif
}
break;
case IFTTT_PROGRAM_SCHED:
if(sval) strcat_P(postval, PSTR("Manually scheduled "));
else strcat_P(postval, PSTR("Automatically scheduled "));
strcat_P(postval, PSTR("Program "));
{
ProgramStruct prog;
pd.read(lval, &prog);
if(lval<pd.nprograms) strcat(postval, prog.name);
}