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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 "opensprinkler_server.h"
#include "mqtt.h"
#if defined(ARDUINO)
#if defined(ESP8266)
ESP8266WebServer *update_server = NULL;
OTF::OpenThingsFramework *otf = NULL;
DNSServer *dns = NULL;
ENC28J60lwIP eth(PIN_ETHER_CS); // ENC28J60 lwip for wired Ether
bool useEth = false; // tracks whether we are using WiFi or wired Ether connection
static uint16_t led_blink_ms = LED_FAST_BLINK;
#else
EthernetServer *m_server = NULL;
EthernetClient *m_client = NULL;
SdFat sd; // SD card object
bool useEth = true;
#endif
unsigned long getNtpTime();
#else // header and defs for RPI/BBB
EthernetServer *m_server = 0;
EthernetClient *m_client = 0;
#endif
void reset_all_stations();
void reset_all_stations_immediate();
void push_message(int type, uint32_t lval=0, float fval=0.f, const char* sval=NULL);
void manual_start_program(byte, byte);
void remote_http_callback(char*);
// Small variations have been added to the timing values below
// to minimize conflicting events
#define NTP_SYNC_INTERVAL 86413L // NTP sync interval (in seconds)
#define CHECK_NETWORK_INTERVAL 601 // Network checking timeout (in seconds)
#define CHECK_WEATHER_TIMEOUT 21613L // Weather check interval (in seconds)
#define CHECK_WEATHER_SUCCESS_TIMEOUT 86400L // Weather check success interval (in seconds)
#define LCD_BACKLIGHT_TIMEOUT 15 // LCD backlight timeout (in seconds))
#define PING_TIMEOUT 200 // Ping test timeout (in ms)
#define UI_STATE_MACHINE_INTERVAL 50 // how often does ui_state_machine run (in ms)
#define CLIENT_READ_TIMEOUT 5 // client read timeout (in seconds)
#define DHCP_CHECKLEASE_INTERVAL 3600L // DHCP check lease interval (in seconds)
// Define buffers: need them to be sufficiently large to cover string option reading
char ether_buffer[ETHER_BUFFER_SIZE*2]; // ethernet buffer, make it twice as large to allow overflow
char tmp_buffer[TMP_BUFFER_SIZE*2]; // scratch buffer, make it twice as large to allow overflow
// ====== 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;
ulong flow_count = 0;
byte prev_flow_state = HIGH;
float flow_last_gpm=0;
uint32_t reboot_timer = 0;
void flow_poll() {
#if defined(ESP8266)
if(os.hw_rev == 2) pinModeExt(PIN_SENSOR1, INPUT_PULLUP); // this seems necessary for OS 3.2
#endif
byte curr_flow_state = digitalReadExt(PIN_SENSOR1);
if(!(prev_flow_state==HIGH && curr_flow_state==LOW)) { // only record on falling edge
prev_flow_state = curr_flow_state;
return;
}
prev_flow_state = curr_flow_state;
ulong curr = millis();
flow_count++;
/* 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 poll
/* 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;
bool ui_confirm(PGM_P str) {
os.lcd_print_line_clear_pgm(str, 0);
os.lcd_print_line_clear_pgm(PSTR("(B1:No, B3:Yes)"), 1);
byte button;
ulong start = millis();
do {
button = os.button_read(BUTTON_WAIT_NONE);
if((button&BUTTON_MASK)==BUTTON_3 && (button&BUTTON_FLAG_DOWN)) return true;
if((button&BUTTON_MASK)==BUTTON_1 && (button&BUTTON_FLAG_DOWN)) return false;
delay(10);
} while(millis() - start < 2500);
return false;
}
void ui_state_machine() {
// to avoid ui_state_machine taking too much computation time
// we run it only every UI_STATE_MACHINE_INTERVAL ms
static uint32_t last_usm = 0;
if(millis() - last_usm <= UI_STATE_MACHINE_INTERVAL) { return; }
last_usm = millis();
#if defined(ESP8266)
// process screen led
static ulong led_toggle_timeout = 0;
if(led_blink_ms) {
if(millis()>led_toggle_timeout) {
os.toggle_screen_led();
led_toggle_timeout = millis() + led_blink_ms;
}
}
#endif
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
if (digitalReadExt(PIN_BUTTON_3)==0) { // if B3 is pressed while holding B1, run a short test (internal test)
if(!ui_confirm(PSTR("Start 2s test?"))) {ui_state = UI_STATE_DEFAULT; break;}
manual_start_program(255, 0);
} else if (digitalReadExt(PIN_BUTTON_2)==0) { // if B2 is pressed while holding B1, display gateway IP
os.lcd.clear(0, 1);
os.lcd.setCursor(0, 0);
#if defined(ESP8266)
if (useEth) { os.lcd.print(eth.gatewayIP()); }
else { os.lcd.print(WiFi.gatewayIP()); }
#else
{ os.lcd.print(Ethernet.gatewayIP()); }
#endif
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR("(gwip)"));
ui_state = UI_STATE_DISP_IP;
} else { // if no other button is clicked, stop all zones
if(!ui_confirm(PSTR("Stop all zones?"))) {ui_state = UI_STATE_DEFAULT; break;}
reset_all_stations();
}
} else { // clicking B1: display device IP and port
os.lcd.clear(0, 1);
os.lcd.setCursor(0, 0);
#if defined(ESP8266)
if (useEth) { os.lcd.print(eth.localIP()); }
else { os.lcd.print(WiFi.localIP()); }
#else
{ os.lcd.print(Ethernet.localIP()); }
#endif
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR(":"));
uint16_t httpport = (uint16_t)(os.iopts[IOPT_HTTPPORT_1]<<8) + (uint16_t)os.iopts[IOPT_HTTPPORT_0];
os.lcd.print(httpport);
os.lcd_print_pgm(PSTR(" (ip:port)"));
ui_state = UI_STATE_DISP_IP;
}
break;
case BUTTON_2:
if (button & BUTTON_FLAG_HOLD) { // holding B2
if (digitalReadExt(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 (digitalReadExt(PIN_BUTTON_3)==0) { // if B3 is pressed while holding B2, display last successful weather call
//os.lcd.clear(0, 1);
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 { // if no other button is clicked, reboot
if(!ui_confirm(PSTR("Reboot device?"))) {ui_state = UI_STATE_DEFAULT; break;}
os.reboot_dev(REBOOT_CAUSE_BUTTON);
}
} else { // clicking B2: display MAC
os.lcd.clear(0, 1);
byte mac[6];
os.load_hardware_mac(mac, useEth);
os.lcd_print_mac(mac);
ui_state = UI_STATE_DISP_GW;
}
break;
case BUTTON_3:
if (button & BUTTON_FLAG_HOLD) { // holding B3
if (digitalReadExt(PIN_BUTTON_1)==0) { // if B1 is pressed while holding B3, display up time
os.lcd_print_time(os.powerup_lasttime);
os.lcd.setCursor(0, 1);
os.lcd_print_pgm(PSTR("(lupt) cause:"));
os.lcd.print(os.last_reboot_cause);
ui_state = UI_STATE_DISP_IP;
} else if(digitalReadExt(PIN_BUTTON_2)==0) { // if B2 is pressed while holding B3, reset to AP and reboot
#if defined(ESP8266)
if(!ui_confirm(PSTR("Reset to AP?"))) {ui_state = UI_STATE_DEFAULT; break;}
os.reset_to_ap();
#endif
} else { // if no other button is clicked, go to Run Program 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. */
#if defined(ESP8266)
WiFi.persistent(false);
led_blink_ms = LED_FAST_BLINK;
#else
MCUSR &= ~(1<<WDRF);
#endif
DEBUG_BEGIN(115200);
DEBUG_PRINTLN(F("started"));
os.begin(); // OpenSprinkler init
os.options_setup(); // Setup options
pd.init(); // ProgramData init
// set time using RTC if it exists
if(RTC.exists()) setTime(RTC.get());
os.lcd_print_time(os.now_tz()); // display time to LCD
os.powerup_lasttime = os.now_tz();
#if !defined(ESP8266)
// 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);
#endif
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.mqtt.init();
os.status.req_mqtt_restart = true;
os.apply_all_station_bits(); // reset station bits
// because at reboot we don't know if special stations
// are in OFF state, here we explicitly turn them off
for(byte sid=0;sid<os.nstations;sid++) {
os.switch_special_station(sid, 0);
}
os.button_timeout = LCD_BACKLIGHT_TIMEOUT;
}
// Arduino software reset function
void(* sysReset) (void) = 0;
#if !defined(ESP8266)
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();
}
}
#endif
#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;
// because at reboot we don't know if special stations
// are in OFF state, here we explicitly turn them off
for(byte sid=0;sid<os.nstations;sid++) {
os.switch_special_station(sid, 0);
}
os.mqtt.init();
os.status.req_mqtt_restart = true;
}
#endif
void write_log(byte type, ulong curr_time);
void schedule_all_stations(ulong curr_time);
void turn_on_station(byte sid, ulong duration);
void turn_off_station(byte sid, ulong curr_time, byte shift=0);
void handle_expired_station(byte sid, ulong curr_time);
void process_dynamic_events(ulong curr_time);
void check_network();
void check_weather();
bool process_special_program_command(const char*, uint32_t curr_time);
void perform_ntp_sync();
void delete_log(char *name);
#if defined(ESP8266)
bool delete_log_oldest();
void start_server_ap();
void start_server_client();
static Ticker reboot_ticker;
void reboot_in(uint32_t ms) {
if(os.state != OS_STATE_WAIT_REBOOT) {
os.state = OS_STATE_WAIT_REBOOT;
DEBUG_PRINTLN(F("Prepare to restart..."));
reboot_ticker.once_ms(ms, ESP.restart);
}
}
#else
void handle_web_request(char *p);
#endif
/** Main Loop */
void do_loop()
{
// handle flow sensor using polling every 1ms (maximum freq 1/(2*1ms)=500Hz)
static ulong flowpoll_timeout=0;
if(os.iopts[IOPT_SENSOR1_TYPE]==SENSOR_TYPE_FLOW) {
ulong curr = millis();
if(curr!=flowpoll_timeout) {
flowpoll_timeout = curr;
flow_poll();
}
}
static ulong last_time = 0;
static ulong last_minute = 0;
byte bid, sid, s, pid, qid, gid, bitvalue;
ProgramStruct prog;
os.status.mas = os.iopts[IOPT_MASTER_STATION];
os.status.mas2= os.iopts[IOPT_MASTER_STATION_2];
time_t curr_time = os.now_tz();
// ====== Process Ethernet packets ======
#if defined(ARDUINO) // Process Ethernet packets for Arduino
#if defined(ESP8266)
static ulong connecting_timeout;
switch(os.state) {
case OS_STATE_INITIAL:
if(useEth) {
led_blink_ms = 0;
os.set_screen_led(LOW);
os.lcd.clear();
os.save_wifi_ip();
start_server_client();
os.state = OS_STATE_CONNECTED;
connecting_timeout = 0;
} else if(os.get_wifi_mode()==WIFI_MODE_AP) {
start_server_ap();
dns->setErrorReplyCode(DNSReplyCode::NoError);
dns->start(53, "*", WiFi.softAPIP());
os.state = OS_STATE_CONNECTED;
connecting_timeout = 0;
} else {
led_blink_ms = LED_SLOW_BLINK;
if(os.sopt_load(SOPT_STA_BSSID_CHL).length()>0 && os.wifi_channel<255) {
start_network_sta(os.wifi_ssid.c_str(), os.wifi_pass.c_str(), (int32_t)os.wifi_channel, os.wifi_bssid);
}
else
start_network_sta(os.wifi_ssid.c_str(), os.wifi_pass.c_str());
os.config_ip();
os.state = OS_STATE_CONNECTING;
connecting_timeout = millis() + 120000L;
os.lcd.setCursor(0, -1);
os.lcd.print(F("Connecting to..."));
os.lcd.setCursor(0, 2);
os.lcd.print(os.wifi_ssid);
}
break;
case OS_STATE_TRY_CONNECT:
led_blink_ms = LED_SLOW_BLINK;
if(os.sopt_load(SOPT_STA_BSSID_CHL).length()>0 && os.wifi_channel<255) {
start_network_sta_with_ap(os.wifi_ssid.c_str(), os.wifi_pass.c_str(), (int32_t)os.wifi_channel, os.wifi_bssid);
}
else
start_network_sta_with_ap(os.wifi_ssid.c_str(), os.wifi_pass.c_str());
os.config_ip();
os.state = OS_STATE_CONNECTED;
break;
case OS_STATE_CONNECTING:
if(WiFi.status() == WL_CONNECTED) {
led_blink_ms = 0;
os.set_screen_led(LOW);
os.lcd.clear();
os.save_wifi_ip();
start_server_client();
os.state = OS_STATE_CONNECTED;
connecting_timeout = 0;
} else {
if(millis()>connecting_timeout) {
os.state = OS_STATE_INITIAL;
WiFi.disconnect(true);
DEBUG_PRINTLN(F("timeout"));
}
}
break;
case OS_STATE_WAIT_REBOOT:
if(dns) dns->processNextRequest();
if(otf) otf->loop();
if(update_server) update_server->handleClient();
break;
case OS_STATE_CONNECTED:
if(os.get_wifi_mode() == WIFI_MODE_AP) {
dns->processNextRequest();
update_server->handleClient();
otf->loop();
connecting_timeout = 0;
if(os.get_wifi_mode()==WIFI_MODE_STA) {
// already in STA mode, waiting to reboot
break;
}
if(WiFi.status()==WL_CONNECTED && WiFi.localIP() && reboot_timer!=0) {
DEBUG_PRINTLN(F("STA connected, set up reboot timer"));
reboot_timer = os.now_tz() + 10;
//os.reboot_dev(REBOOT_CAUSE_WIFIDONE);
}
} else {
if(useEth || WiFi.status() == WL_CONNECTED) {
update_server->handleClient();
otf->loop();
connecting_timeout = 0;
} else {
// todo: better handling of WiFi disconnection
DEBUG_PRINTLN(F("WiFi disconnected, going back to initial"));
os.state = OS_STATE_INITIAL;
WiFi.disconnect(true);
}
}
break;
}
#else // AVR
static unsigned long dhcp_timeout = 0;
if(curr_time > dhcp_timeout) {
Ethernet.maintain();
dhcp_timeout = curr_time + DHCP_CHECKLEASE_INTERVAL;
}
EthernetClient client = m_server->available();
if (client) {
ulong cli_timeout = now() + CLIENT_READ_TIMEOUT;
while(client.connected() && now() < cli_timeout) {
size_t size = client.available();
if(size>0) {
if(size>ETHER_BUFFER_SIZE) size=ETHER_BUFFER_SIZE;
int len = client.read((uint8_t*) ether_buffer, size);
if(len>0) {
m_client = &client;
ether_buffer[len] = 0; // properly end the buffer
handle_web_request(ether_buffer);
m_client = NULL;
break;
}
}
}
client.stop();
}
wdt_reset(); // reset watchdog timer
wdt_timeout = 0;
#endif
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
// Start up MQTT when we have a network connection
if (os.status.req_mqtt_restart && os.network_connected()) {
DEBUG_PRINTLN(F("req_mqtt_restart"));
os.mqtt.begin();
os.status.req_mqtt_restart = false;
}
os.mqtt.loop();
// The main control loop runs once every second
if (curr_time != last_time) {
#if defined(ESP8266)
if(os.hw_rev==2) {
pinModeExt(PIN_SENSOR1, INPUT_PULLUP); // this seems necessary for OS 3.2
pinModeExt(PIN_SENSOR2, INPUT_PULLUP);
}
#endif
last_time = curr_time;
if (os.button_timeout) os.button_timeout--;
#if defined(ARDUINO)
if (!ui_state)
os.lcd_print_time(curr_time); // 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_on_lasttime = curr_time;
push_message(NOTIFY_RAINDELAY, LOGDATA_RAINDELAY, 1);
} else {
// rain delay stopped, write log
write_log(LOGDATA_RAINDELAY, curr_time);
push_message(NOTIFY_RAINDELAY, LOGDATA_RAINDELAY, 0);
}
os.old_status.rain_delayed = os.status.rain_delayed;
}
// ====== Check binary (i.e. rain or soil) sensor status ======
os.detect_binarysensor_status(curr_time);
if(os.old_status.sensor1_active != os.status.sensor1_active) {
// send notification when sensor1 becomes active
if(os.status.sensor1_active) {
os.sensor1_active_lasttime = curr_time;
push_message(NOTIFY_SENSOR1, LOGDATA_SENSOR1, 1);
} else {
write_log(LOGDATA_SENSOR1, curr_time);
push_message(NOTIFY_SENSOR1, LOGDATA_SENSOR1, 0);
}
}
os.old_status.sensor1_active = os.status.sensor1_active;
if(os.old_status.sensor2_active != os.status.sensor2_active) {
// send notification when sensor1 becomes active
if(os.status.sensor2_active) {
os.sensor2_active_lasttime = curr_time;
push_message(NOTIFY_SENSOR2, LOGDATA_SENSOR2, 1);
} else {
write_log(LOGDATA_SENSOR2, curr_time);
push_message(NOTIFY_SENSOR2, LOGDATA_SENSOR2, 0);
}
}
os.old_status.sensor2_active = os.status.sensor2_active;
// ===== Check program switch status =====
byte pswitch = os.detect_programswitch_status(curr_time);
if(pswitch > 0) {
reset_all_stations_immediate(); // immediately stop all stations
}
if (pswitch & 0x01) {
if(pd.nprograms > 0) manual_start_program(1, 0);
}
if (pswitch & 0x02) {
if(pd.nprograms > 1) manual_start_program(2, 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;
apply_monthly_adjustment(curr_time); // check and apply monthly adjustment here, if it's selected
// check through all programs
for(pid=0; pid<pd.nprograms; pid++) {
pd.read(pid, &prog); // todo future: reduce load time
if(prog.check_match(curr_time)) {
// program match found
// check and process special program command
if(process_special_program_command(prog.name, curr_time)) continue;
// 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.attrib_dis[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.iopts[IOPT_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(NOTIFY_PROGRAM_SCHED, pid, prog.use_weather?os.iopts[IOPT_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 stations and any station that's not in the queue
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];
// 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, q->st+q->dur-curr_time); // the last parameter is expected run time
} //if curr_time > scheduled_start_time
} // if current station is not running
// check if this station should be turned off
if (q->st > 0) {
if (curr_time >= q->st+q->dur) {
turn_off_station(sid, curr_time);
}
}
}//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->deque_time) {
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
memset(pd.last_seq_stop_times, 0, sizeof(ulong)*NUM_SEQ_GROUPS);
ulong sst;
byte re=os.iopts[IOPT_REMOTE_EXT_MODE];
q = pd.queue;
for(;q<pd.queue+pd.nqueue;q++) {
sid = q->sid;
bid = sid>>3;
s = sid&0x07;
gid = os.get_station_gid(sid);
// 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.is_sequential_station(sid) && !re) {
pd.last_seq_stop_times[gid] = (sst > pd.last_seq_stop_times[gid]) ? sst : pd.last_seq_stop_times[gid];
}
}
}
// 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();
pd.reset_runtime(); // reset runtime
os.status.program_busy = 0; // reset program busy bit
pd.clear_pause(); // TODO: what if pause hasn't expired and a new program is scheduled to run?
// log flow sensor reading if flow sensor is used
if(os.iopts[IOPT_SENSOR1_TYPE]==SENSOR_TYPE_FLOW) {
write_log(LOGDATA_FLOWSENSE, curr_time);
push_message(NOTIFY_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.iopts[IOPT_MASTER_STATION]; // update master station
os.status.mas2= os.iopts[IOPT_MASTER_STATION_2]; // update master2 station
}
}//if_some_program_is_running
// handle master
for (byte mas = MASTER_1; mas < NUM_MASTER_ZONES; mas++) {
byte mas_id = os.masters[mas][MASOPT_SID];
if (mas_id) { // if this master station is set
int16_t mas_on_adj = os.get_on_adj(mas);
int16_t mas_off_adj = os.get_off_adj(mas);
byte masbit = 0;
for(sid = 0; sid < os.nstations; sid++) {
// skip if this is the master station
if (mas_id == sid + 1) continue;
q = pd.queue + pd.station_qid[sid];
if (os.bound_to_master(q->sid, mas)) {
// 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(mas_id - 1, masbit);
}
}
if (os.status.pause_state) {
if (os.pause_timer > 0) {
os.pause_timer--;
} else {
os.clear_all_station_bits();
pd.clear_pause();
}
}
// 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_screen(ui_anim_chars[(unsigned long)curr_time%3]); }
#endif
// handle reboot request
// check safe_reboot condition
if (os.status.safe_reboot && (curr_time > reboot_timer)) {
// 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(os.nvdata.reboot_cause);
}
}
} else if(reboot_timer && (curr_time > reboot_timer)) {
os.reboot_dev(REBOOT_CAUSE_TIMER);
}
// real-time flow count
static ulong flowcount_rt_start = 0;
if (os.iopts[IOPT_SENSOR1_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
// instead of using curr_time, which may change due to NTP sync itself
// we use Arduino's millis() method
if (curr_time % NTP_SYNC_INTERVAL == 0) os.status.req_ntpsync = 1;
//if((millis()/1000) % NTP_SYNC_INTERVAL==15) 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();
if(os.weather_update_flag & WEATHER_UPDATE_WL) {
// at the moment, we only send notification if water level changed
// the other changes, such as sunrise, sunset changes are ignored for notification
push_message(NOTIFY_WEATHER_UPDATE, 0, os.iopts[IOPT_WATER_PERCENTAGE]);
os.weather_update_flag = 0;
}
static byte reboot_notification = 1;
if(reboot_notification) {
reboot_notification = 0;
push_message(NOTIFY_REBOOT);
}
}
#if !defined(ARDUINO)
delay(1); // For OSPI/OSBO/LINUX, sleep 1 ms to minimize CPU usage
#endif
}
/** Check and process special program command */
bool process_special_program_command(const char* pname, uint32_t curr_time) {
if(pname[0]==':') { // special command start with :
if(strncmp(pname, ":>reboot_now", 12) == 0) {
os.status.safe_reboot = 0; // reboot regardless of program status
reboot_timer = curr_time + 65; // set a timer to reboot in 65 seconds
// this is to avoid the same command being executed again right after reboot