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outputs.cpp
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outputs.cpp
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#include "outputs.h"
#include "daytime.h"
#include "sdcard.h"
Output::Output() {
common_init();
}
void Output::common_init() {
time_t t_now = utc_now();
log_index = 0;
log_file_index = 0;
for (int slot = 0; slot < OUTPUTS; slot++) {
broken[slot] = 0;
broken2[slot] = 0;
ctimes[slot] = t_now;
state[slot] = 0;
hw_state[slot] = 0;
}
strcpy(name, "outputs");
//log();
}
int Output::get(int slot) {
// return true if %slot% should be on
// ignoring broken state
if (slot == -1 || slot >= OUTPUTS) return 0;
return (state[slot] != 0);
}
int Output::hw_get(int slot) {
// return true if %slot% is on
if (slot == -1 || slot >= OUTPUTS) return 0;
return (hw_state[slot] != 0);
}
int Output::set(int slot, int val, int trigger) {
// update valute of %slot%
if (slot == -1 || slot >= OUTPUTS) {
#ifdef DEBUG_OUTPUT
SERIAL.println(F("set: nop"));
#endif
return 0;
}
if (val == 0) {
state[slot] = bitclr(state[slot], trigger);
#ifdef DEBUG_OUTPUT
SERIAL.print(F("set: clr "));
#endif
SERIAL.print(slot);
} else {
state[slot] = bitset(state[slot], trigger);
#ifdef DEBUG_OUTPUT
SERIAL.print(F("set: set "));
#endif
SERIAL.print(slot);
}
return (state[slot] != 0);
}
int Output::breakme(int slot, int val, int trigger) {
// update valute of %slot%
if (slot < 0 || slot >= OUTPUTS || trigger < 0 || trigger > TRIGGERS ) {
SERIAL.println(F("breakme: nop"));
return NONE;
}
if (val == 0) {
SERIAL.println(F("breakme: clr"));
if (slot < 32) {
broken[slot] = bitclr(broken[slot], trigger);
} else {
broken2[slot] = bitclr(broken2[slot - 32], trigger);
}
} else {
SERIAL.println(F("breakme: set"));
if (slot < 32) {
broken[slot] = bitset(broken[slot], trigger);
} else {
broken2[slot] = bitset(broken2[slot - 32], trigger);
}
}
return (state[slot] != 0);
}
void Output::kill(int slot, int trigger) {
if (slot == -1 || slot >= OUTPUTS) return;
SERIAL.print(F("Killing output #"));
SERIAL.println(slot, DEC);
breakme(slot, 1, trigger);
}
void Output::revive(int slot, int trigger) {
if (slot == -1 || slot >= OUTPUTS) return;
SERIAL.print(F("Reviving output #"));
SERIAL.println(slot, DEC);
breakme(slot, 0, trigger);
}
time_t Output::uptime(int slot) {
// return time since last change
if (slot == -1 || slot >= OUTPUTS) return 0;
return utc_now() - ctimes[slot];
}
int Output::bitget(int value, int bit) {
// check if given bitfield %value% has bit %bit% set
if (bit > 31) return 0;
int out;
out = !!(value & ( 1 << bit));
return out;
}
long Output::bitset(int value, int bit) {
// set bit %bit% in %value% and return new value
if (bit > 31) return 0;
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Setting "));
SERIAL.print(value, DEC);
SERIAL.print(F(" bit "));
SERIAL.print(bit);
#endif
value |= 1 << bit;
#ifdef DEBUG_OUTPUT
SERIAL.print(F(" result "));
SERIAL.println(value);
#endif
return value;
}
long Output::bitclr(int value, int bit) {
// clear %bit% in %value% and return new value
if (bit > 31) return 0;
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Clearing "));
SERIAL.print(value, DEC);
SERIAL.print(F(" bit "));
SERIAL.print(bit);
#endif
value &= ~(1 << bit);
#ifdef DEBUG_OUTPUT
SERIAL.print(F(" result "));
SERIAL.println(value);
#endif
return value;
}
int Output::pack_states() {
int packed;
packed = 0;
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Packing: "));
#endif
for (int i = 0; i < OUTPUTS; i++) {
#ifdef DEBUG_OUTPUT
SERIAL.print(hw_state[i]);
SERIAL.print(F(" "));
#endif
packed += hw_get(i) << i;
}
#ifdef DEBUG_OUTPUT
SERIAL.print(F(": "));
SERIAL.println(packed, BIN);
#endif
return packed;
}
int Output::is_broken(int slot) {
#ifdef DEBUG_OUTPUT
SERIAL.print(F(" (Checking slot "));
SERIAL.print(slot);
SERIAL.print(F(":"));
#endif
if (slot < 32) {
#ifdef DEBUG_OUTPUT
SERIAL.print(broken[slot]);
SERIAL.print(F(") "));
#endif
return (broken[slot] != 0);
}
#ifdef DEBUG_OUTPUT
SERIAL.print(broken2[slot - 32]);
SERIAL.print(F(") "));
#endif
return (broken2[slot - 32] != 0);
}
int Output::hw_update(int slot) {
// Update output %slot%, checking broken state
// this is only place where we touch hardware
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Output "));
SERIAL.print(slot, DEC);
#endif
int wanted;
if (is_broken(slot)) {
#ifdef DEBUG_OUTPUT
SERIAL.println(F(" is broken"));
#endif
wanted = 0;
} else {
wanted = get(slot);
#ifdef DEBUG_OUTPUT
SERIAL.print(F(" desired state "));
SERIAL.println(wanted, DEC);
#endif
}
if (wanted != hw_state[slot]) {
#ifdef DEBUG_OUTPUT
SERIAL.println(F("Changing output"));
#endif
time_t t_now = utc_now();
digitalWrite(RELAY_START + slot, wanted);
delay(100);
hw_state[slot] = wanted;
//log();
ctimes[slot] = t_now;
} else {
#ifdef DEBUG_OUTPUT
SERIAL.println(F("Not changing output"));
#endif
}
return wanted;
}
bool Output::match(const char * request) {
// return true if we want this logger in http request
char * filename;
char filebuf[13];
filename = strrchr(request, '/');
if (filename == NULL) {
// something weird happened, we should have / in request
// as we are sensors/sensor.jso
return false;
}
// we can get weird things in filename
// otoh name is safe, so make filename from name and compare that
filename = filename + 1;
sprintf(filebuf, "%s.jso", name);
return (strcasecmp(filename, filebuf) == 0);
}
void Output::log() {
int packed_states;
int last_rec;
last_rec = log_index - 1;
packed_states = pack_states();
if (log_index > 0) {
if (log_states[last_rec] == packed_states) {
if (daymin() > last_save_daymin) {
last_save_daymin = daymin();
}
#ifdef DEBUG_OUTPUT
SERIAL.println(F("Output log noop"));
#endif
return;
}
}
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Output logging. Index:"));
SERIAL.println(log_index);
SERIAL.print(F("packed states: "));
SERIAL.println(packed_states);
#endif
log_states[log_index] = packed_states;
log_times[log_index] = utc_now();
log_index++;
if (log_index >= LOGSIZE) { // switch logfile when full
initial = new_initial;
log_index = 0;
log_file_index++;
}
if (daymin() < last_save_daymin) { // switch logfile on day change
initial = new_initial;
log_index = 0;
log_file_index = 0;
}
last_save_daymin = daymin();
save();
new_initial = packed_states;
}
char * Output::file_name(char * filename) {
sprintf(filename, "%d.jso", log_file_index);
return filename;
}
char * Output::dir_name(char * dirname) {
sprintf(dirname, "/data/%s/%d/%02d/%02d", name, year(), month(), day());
return dirname;
}
void Output::load() {
//recover last state of output history
SERIAL.println(F("Loading relay history"));
char filename[12];
char dirname[50];
aJsonObject * buff;
aJsonObject * data_item;
last_save_daymin = daymin();
file_name(filename);
dir_name(dirname);
log_file_index = 0;
while (file_exists(dirname, filename)) { //find first unused filename
log_file_index++;
file_name(filename);
}
SERIAL.print(F("last used file: "));
SERIAL.print(log_file_index);
if (log_file_index > 0) log_file_index--; //back off to last used filename
file_name(filename);
if (file_exists(dirname, filename)) { // Restore data
aJsonObject * logfile = file_read(dirname, filename);
aJsonObject* cnfobj = aJson.getObjectItem(logfile, "initial");
if (cnfobj) {
sscanf(cnfobj->valuestring, "%d", &initial);
} else {
initial = 0;
}
buff = aJson.getObjectItem(logfile, "state");
if (!buff) {
#ifdef DEBUG_OUTPUT
SERIAL.println(F("json contains no related data"));
#endif
} else {
data_item = buff->child;
int idx = 0;
time_t tstamp = 0;
int value = 0;
while (data_item != NULL) {
#ifdef DEBUG_OUTPUT
SERIAL.println(F("Loading data item"));
SERIAL.print(F("Name: "));
SERIAL.println(data_item->name);
#endif
sscanf(data_item->name, "%lu", &tstamp);
#ifdef DEBUG_OUTPUT
SERIAL.print(F("iName: "));
SERIAL.println(tstamp);
#endif
value = data_item->valueint;
#ifdef DEBUG_OUTPUT
SERIAL.print(F("Value: "));
SERIAL.println(value);
SERIAL.println(F("----"));
#endif
log_times[idx] = tstamp;
log_states[idx] = value;
idx++;
data_item = data_item->next;
}
log_index = idx;
}
aJson.deleteItem(logfile);
}
}
void Output::json(Stream * msg) {
msg->print(F("{"));
msg->print("\"name\":\"");
msg->print(name);
msg->print("\",");
msg->print("\"initial\":\"");
msg->print(initial);
msg->print("\",");
msg->print("\"state\":{");
for (int i = 0; i < log_index; i++) {
if (i > 0) msg->print(F(","));
msg->print(F("\""));
msg->print(log_times[i]);
msg->print(F("\":"));
msg->print(log_states[i]);
}
msg->print(F("}}"));
}
int Output::save() {
char dirname[64];
char filename[13];
dir_name(dirname);
file_name(filename);
file_for_write(dirname, filename, &sd_file);
json(&sd_file);
sd_file.close();
return 1;
}