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mhsw-espurna/code/espurna/relay.cpp

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/*
RELAY MODULE
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include "relay.h"
#if RELAY_SUPPORT
#include <Ticker.h>
#include <ArduinoJson.h>
#include <vector>
#include <functional>
#include <bitset>
#include "api.h"
#include "broker.h"
#include "mqtt.h"
#include "rpc.h"
#include "rtcmem.h"
#include "settings.h"
#include "storage_eeprom.h"
#include "utils.h"
#include "ws.h"
#include "libs/BasePin.h"
#include "relay_config.h"
// Relay statuses are kept in a mutable bitmask struct
// TODO: u32toString should be convert(...) ?
namespace {
String u32toString(uint32_t value, int base) {
String result;
result.reserve(32 + 2);
if (base == 2) {
result += "0b";
} else if (base == 8) {
result += "0o";
} else if (base == 16) {
result += "0x";
}
char buffer[33] = {0};
ultoa(value, buffer, base);
result += buffer;
return result;
}
using RelayMask = std::bitset<RelaysMax>;
struct RelayMaskHelper {
RelayMaskHelper() = default;
explicit RelayMaskHelper(uint32_t mask) :
_mask(mask)
{}
explicit RelayMaskHelper(RelayMask&& mask) :
_mask(std::move(mask))
{}
uint32_t toUnsigned() const {
return _mask.to_ulong();
}
String toString() const {
return u32toString(toUnsigned(), 2);
}
const RelayMask& mask() const {
return _mask;
}
void reset() {
_mask.reset();
}
void set(unsigned char id, bool status) {
_mask.set(id, status);
}
bool operator[](size_t id) const {
return _mask[id];
}
private:
RelayMask _mask { 0ul };
};
} // namespace
namespace settings {
namespace internal {
template <>
RelayProvider convert(const String& value) {
auto type = static_cast<RelayProvider>(value.toInt());
switch (type) {
case RelayProvider::None:
case RelayProvider::Dummy:
case RelayProvider::Gpio:
case RelayProvider::Dual:
case RelayProvider::Stm:
return type;
}
return RelayProvider::None;
}
template <>
RelayType convert(const String& value) {
auto type = static_cast<RelayType>(value.toInt());
switch (type) {
case RelayType::Normal:
case RelayType::Inverse:
case RelayType::Latched:
case RelayType::LatchedInverse:
return type;
}
return RelayType::Normal;
}
template <>
RelayMaskHelper convert(const String& value) {
return RelayMaskHelper(convert<unsigned long>(value));
}
template <>
String serialize(const RelayMaskHelper& mask) {
return mask.toString();
}
} // namespace internal
} // namespace settings
// -----------------------------------------------------------------------------
// RELAY CONTROL
// -----------------------------------------------------------------------------
RelayProviderBase* _relayDummyProvider();
struct relay_t {
public:
// Struct defaults to empty relay configuration, as we allow switches to exist without real GPIOs
relay_t() = default;
relay_t(RelayProviderBase* provider_) :
provider(provider_)
{}
// ON / OFF actions implementation
RelayProviderBase* provider { _relayDummyProvider() };
// Timers
unsigned long delay_on { 0ul }; // Delay to turn relay ON
unsigned long delay_off { 0ul }; // Delay to turn relay OFF
unsigned char pulse { RELAY_PULSE_NONE }; // RELAY_PULSE_NONE, RELAY_PULSE_OFF or RELAY_PULSE_ON
unsigned long pulse_ms { 0ul }; // Pulse length in millis
Ticker* pulseTicker { nullptr }; // Holds the pulse back timer
unsigned long fw_start { 0ul }; // Flood window start time
unsigned char fw_count { 0u }; // Number of changes within the current flood window
unsigned long change_start { 0ul }; // Time when relay was scheduled to change
unsigned long change_delay { 0ul }; // Delay until the next change
// Status
bool current_status { false }; // Holds the current (physical) status of the relay
bool target_status { false }; // Holds the target status
unsigned char lock { RELAY_LOCK_DISABLED }; // Holds the value of target status, that cannot be changed afterwards. (0 for false, 1 for true, 2 to disable)
// MQTT
bool report { false }; // Whether to report to own topic
bool group_report { false }; // Whether to report to group topic
};
std::vector<relay_t> _relays;
bool _relayRecursive = false;
size_t _relayDummy = 0;
unsigned long _relay_flood_window = (1000 * RELAY_FLOOD_WINDOW);
unsigned long _relay_flood_changes = RELAY_FLOOD_CHANGES;
unsigned long _relay_delay_interlock;
unsigned char _relay_sync_mode = RELAY_SYNC_ANY;
bool _relay_sync_locked = false;
Ticker _relay_save_timer;
Ticker _relay_sync_timer;
RelayStatusCallback _relay_status_notify { nullptr };
RelayStatusCallback _relay_status_change { nullptr };
#if WEB_SUPPORT
bool _relay_report_ws = false;
#endif // WEB_SUPPORT
#if MQTT_SUPPORT || API_SUPPORT
String _relay_rpc_payload_on;
String _relay_rpc_payload_off;
String _relay_rpc_payload_toggle;
#endif // MQTT_SUPPORT || API_SUPPORT
// -----------------------------------------------------------------------------
// RELAY PROVIDERS
// -----------------------------------------------------------------------------
// 'anchor' default virtual implementations to the relay.cpp.o
RelayProviderBase::~RelayProviderBase() {
}
void RelayProviderBase::dump() {
}
bool RelayProviderBase::setup() {
return true;
}
void RelayProviderBase::boot(bool) {
}
void RelayProviderBase::notify(bool) {
}
// Direct status notifications
void relaySetStatusNotify(RelayStatusCallback callback) {
_relay_status_notify = callback;
}
void relaySetStatusChange(RelayStatusCallback callback) {
_relay_status_change = callback;
}
// No-op provider, available for purely virtual relays that are controlled only via API
struct DummyProvider : public RelayProviderBase {
const char* id() const override {
return "dummy";
}
void change(bool) override {
}
};
RelayProviderBase* _relayDummyProvider() {
static DummyProvider provider;
return &provider;
}
// Real GPIO provider, using BasePin interface to implement writers
struct GpioProvider : public RelayProviderBase {
GpioProvider(unsigned char id, RelayType type, std::unique_ptr<BasePin>&& pin, std::unique_ptr<BasePin>&& reset_pin) :
_id(id),
_type(type),
_pin(std::move(pin)),
_reset_pin(std::move(reset_pin))
{}
const char* id() const override {
return "gpio";
}
bool setup() override {
if (!_pin) {
return false;
}
_pin->pinMode(OUTPUT);
if (_reset_pin) {
_reset_pin->pinMode(OUTPUT);
}
if (_type == RelayType::Inverse) {
_pin->digitalWrite(HIGH);
}
return true;
}
void change(bool status) override {
switch (_type) {
case RelayType::Normal:
_pin->digitalWrite(status);
break;
case RelayType::Inverse:
_pin->digitalWrite(!status);
break;
case RelayType::Latched:
case RelayType::LatchedInverse: {
bool pulse = (_type == RelayType::Latched) ? HIGH : LOW;
_pin->digitalWrite(!pulse);
if (_reset_pin) {
_reset_pin->digitalWrite(!pulse);
}
if (status || (!_reset_pin)) {
_pin->digitalWrite(pulse);
} else {
_reset_pin->digitalWrite(pulse);
}
nice_delay(RELAY_LATCHING_PULSE);
// TODO: note that we stall loop() execution
// need to ensure only relay task is active
_pin->digitalWrite(!pulse);
if (_reset_pin) {
_reset_pin->digitalWrite(!pulse);
}
}
}
}
private:
unsigned char _id { RELAY_NONE };
RelayType _type { RelayType::Normal };
std::unique_ptr<BasePin> _pin;
std::unique_ptr<BasePin> _reset_pin;
};
// Special provider for Sonoff Dual, using serial protocol
#if RELAY_PROVIDER_DUAL_SUPPORT
class DualProvider : public RelayProviderBase {
public:
DualProvider() = delete;
explicit DualProvider(unsigned char id) : _id(id) {
_instances.push_back(this);
}
~DualProvider() {
_instances.erase(
std::remove(_instances.begin(), _instances.end(), this),
_instances.end());
}
const char* id() const override {
return "dual";
}
bool setup() override {
static bool once { false };
if (!once) {
once = true;
Serial.begin(SERIAL_BAUDRATE);
espurnaRegisterLoop(loop);
}
return true;
}
void change(bool) override {
static bool scheduled { false };
if (!scheduled) {
schedule_function([]() {
flush();
scheduled = false;
});
}
}
unsigned char relayId() const {
return _id;
}
static std::vector<DualProvider*>& instances() {
return _instances;
}
// Porting the old masking code from buttons
// (no guarantee that this actually works, based on hearsay and some 3rd-party code)
// | first | second | mask |
// | OFF | OFF | 0x0 |
// | ON | OFF | 0x1 |
// | OFF | ON | 0x2 |
// | ON | ON | 0x3 |
// i.e. set status bit mask[INSTANCE] for each relay
// unless everything is ON, then *only* send mask[SIZE] bit and erase the rest
static void flush() {
bool sync { true };
RelayMaskHelper mask;
for (unsigned char index = 0; index < _instances.size(); ++index) {
bool status { relayStatus(_instances[index]->relayId()) };
sync = sync && status;
mask.set(index, status);
}
if (sync) {
mask.reset();
mask.set(_instances.size(), true);
}
DEBUG_MSG_P(PSTR("[RELAY] Sending DUAL mask: %s\n"), mask.toString().c_str());
uint8_t buffer[4] { 0xa0, 0x04, static_cast<unsigned char>(mask.toUnsigned()), 0xa1 };
Serial.write(buffer, sizeof(buffer));
Serial.flush();
}
static void loop() {
if (Serial.available() < 4) {
return;
}
unsigned char bytes[4] = {0};
Serial.readBytes(bytes, 4);
if ((bytes[0] != 0xA0) && (bytes[1] != 0x04) && (bytes[3] != 0xA1)) {
return;
}
// RELAYs and BUTTONs are synchonized in the SIL F330
// Make sure we handle SYNC action first
RelayMaskHelper mask(bytes[2]);
if (mask[_instances.size()]) {
for (auto& instance : _instances) {
relayStatus(instance->relayId(), true);
}
return;
}
// Then, manage relays individually
for (unsigned char index = 0; index < _instances.size(); ++index) {
relayStatus(_instances[index]->relayId(), mask[index]);
}
}
private:
unsigned char _id { 0 };
static std::vector<DualProvider*> _instances;
};
std::vector<DualProvider*> DualProvider::_instances;
#endif // RELAY_PROVIDER_DUAL_SUPPORT
// Special provider for ESP01-relays with STM co-MCU driving the relays
#if RELAY_PROVIDER_STM_SUPPORT
class StmProvider : public RelayProviderBase {
public:
StmProvider() = delete;
explicit StmProvider(unsigned char id) :
_id(id)
{}
const char* id() const override {
return "stm";
}
bool setup() override {
static bool once { false };
if (!once) {
once = true;
Serial.begin(SERIAL_BAUDRATE);
}
return true;
}
void boot(bool) override {
// XXX: this was part of the legacy implementation
// "because of broken stm relay firmware"
_relays[_id].change_delay = 3000 + 1000 * _id;
}
void change(bool status) {
Serial.flush();
Serial.write(0xA0);
Serial.write(_id + 1);
Serial.write(status);
Serial.write(0xA1 + status + _id);
// TODO: is this really solved via interlock delay, so we don't have to switch contexts here?
//delay(100);
Serial.flush();
}
private:
unsigned char _id;
};
#endif // RELAY_PROVIDER_STM_SUPPORT
// -----------------------------------------------------------------------------
// UTILITY
// -----------------------------------------------------------------------------
bool _relayTryParseId(const char* p, unsigned char& relayID) {
char* endp { nullptr };
const unsigned long result { strtoul(p, &endp, 10) };
if ((endp == p) || (*endp != '\0') || (result >= relayCount())) {
return false;
}
relayID = result;
return true;
}
bool _relayTryParseIdFromPath(const String& endpoint, unsigned char& relayID) {
int next_slash { endpoint.lastIndexOf('/') };
if (next_slash < 0) {
return false;
}
const char* p { endpoint.c_str() + next_slash + 1 };
if (*p == '\0') {
DEBUG_MSG_P(PSTR("[RELAY] relayID was not specified\n"));
return false;
}
return _relayTryParseId(p, relayID);
}
void _relayHandleStatus(unsigned char relayID, PayloadStatus status) {
switch (status) {
case PayloadStatus::Off:
relayStatus(relayID, false);
break;
case PayloadStatus::On:
relayStatus(relayID, true);
break;
case PayloadStatus::Toggle:
relayToggle(relayID);
break;
case PayloadStatus::Unknown:
break;
}
}
bool _relayHandlePayload(unsigned char relayID, const char* payload) {
auto status = relayParsePayload(payload);
if (status != PayloadStatus::Unknown) {
_relayHandleStatus(relayID, status);
return true;
}
DEBUG_MSG_P(PSTR("[RELAY] Invalid API payload (%s)\n"), payload);
return false;
}
bool _relayHandlePayload(unsigned char relayID, const String& payload) {
return _relayHandlePayload(relayID, payload.c_str());
}
bool _relayHandlePulsePayload(unsigned char id, const char* payload) {
unsigned long pulse = 1000 * atof(payload);
if (!pulse) {
return false;
}
if (RELAY_PULSE_NONE != _relays[id].pulse) {
DEBUG_MSG_P(PSTR("[RELAY] Overriding relayID %u pulse settings\n"), id);
}
_relays[id].pulse_ms = pulse;
_relays[id].pulse = relayStatus(id) ? RELAY_PULSE_ON : RELAY_PULSE_OFF;
relayToggle(id, true, false);
return true;
}
bool _relayHandlePulsePayload(unsigned char id, const String& payload) {
return _relayHandlePulsePayload(id, payload.c_str());
}
PayloadStatus _relayStatusInvert(PayloadStatus status) {
return (status == PayloadStatus::On) ? PayloadStatus::Off : status;
}
PayloadStatus _relayStatusTyped(unsigned char id) {
if (id >= _relays.size()) return PayloadStatus::Off;
const bool status = _relays[id].current_status;
return (status) ? PayloadStatus::On : PayloadStatus::Off;
}
void _relayLockAll() {
for (auto& relay : _relays) {
relay.lock = relay.target_status ? RELAY_LOCK_ON : RELAY_LOCK_OFF;
}
_relay_sync_locked = true;
}
void _relayUnlockAll() {
for (auto& relay : _relays) {
relay.lock = RELAY_LOCK_DISABLED;
}
_relay_sync_locked = false;
}
bool _relayStatusLock(unsigned char id, bool status) {
if (_relays[id].lock != RELAY_LOCK_DISABLED) {
bool lock = _relays[id].lock == RELAY_LOCK_ON;
if ((lock != status) || (lock != _relays[id].target_status)) {
_relays[id].target_status = lock;
_relays[id].change_delay = 0;
return false;
}
}
return true;
}
// https://github.com/xoseperez/espurna/issues/1510#issuecomment-461894516
// completely reset timing on the other relay to sync with this one
// to ensure that they change state sequentially
void _relaySyncRelaysDelay(unsigned char first, unsigned char second) {
_relays[second].fw_start = _relays[first].change_start;
_relays[second].fw_count = 1;
_relays[second].change_delay = std::max({
_relay_delay_interlock,
_relays[first].change_delay,
_relays[second].change_delay
});
}
void _relaySyncUnlock() {
bool unlock = true;
bool all_off = true;
for (const auto& relay : _relays) {
unlock = unlock && (relay.current_status == relay.target_status);
if (!unlock) break;
all_off = all_off && !relay.current_status;
}
if (!unlock) return;
auto action = []() {
_relayUnlockAll();
#if WEB_SUPPORT
_relay_report_ws = true;
#endif
};
if (all_off) {
_relay_sync_timer.once_ms(_relay_delay_interlock, action);
} else {
action();
}
}
// -----------------------------------------------------------------------------
// RELAY PROVIDERS
// -----------------------------------------------------------------------------
/**
* Walks the relay vector processing only those relays
* that have to change to the requested mode
* @bool mode Requested mode
*/
void _relayProcess(bool mode) {
bool changed = false;
for (unsigned char id = 0; id < _relays.size(); id++) {
bool target = _relays[id].target_status;
// Only process the relays we have to change
if (target == _relays[id].current_status) continue;
// Only process the relays we have to change to the requested mode
if (target != mode) continue;
// Only process if the change delay has expired
if (_relays[id].change_delay && (millis() - _relays[id].change_start < _relays[id].change_delay)) continue;
// Purge existing delay in case of cancelation
_relays[id].change_delay = 0;
changed = true;
DEBUG_MSG_P(PSTR("[RELAY] #%d set to %s\n"), id, target ? "ON" : "OFF");
// Call the provider to perform the action
_relays[id].current_status = target;
_relays[id].provider->change(target);
if (_relay_status_change) {
_relay_status_change(id, target);
}
// Send to Broker
#if BROKER_SUPPORT
StatusBroker::Publish(MQTT_TOPIC_RELAY, id, target);
#endif
// Send MQTT
#if MQTT_SUPPORT
relayMQTT(id);
#endif
#if WEB_SUPPORT
_relay_report_ws = true;
#endif
if (!_relayRecursive) {
relayPulse(id);
// We will trigger a eeprom save only if
// we care about current relay status on boot
const auto boot_mode = getSetting({"relayBoot", id}, _relayBootMode(id));
const bool save_eeprom = ((RELAY_BOOT_SAME == boot_mode) || (RELAY_BOOT_TOGGLE == boot_mode));
_relay_save_timer.once_ms(RELAY_SAVE_DELAY, relaySave, save_eeprom);
}
_relays[id].report = false;
_relays[id].group_report = false;
}
// Whenever we are using sync modes and any relay had changed the state, check if we can unlock
const bool needs_unlock = ((_relay_sync_mode == RELAY_SYNC_NONE_OR_ONE) || (_relay_sync_mode == RELAY_SYNC_ONE));
if (_relay_sync_locked && needs_unlock && changed) {
_relaySyncUnlock();
}
}
// -----------------------------------------------------------------------------
// RELAY
// -----------------------------------------------------------------------------
namespace {
inline RelayMaskHelper _relayMaskRtcmem() {
return RelayMaskHelper(Rtcmem->relay);
}
inline void _relayMaskRtcmem(uint32_t mask) {
Rtcmem->relay = mask;
}
inline void _relayMaskRtcmem(const RelayMask& mask) {
_relayMaskRtcmem(mask.to_ulong());
}
inline void _relayMaskRtcmem(const RelayMaskHelper& mask) {
_relayMaskRtcmem(mask.toUnsigned());
}
RelayMaskHelper _relayMaskSettings() {
static RelayMaskHelper defaultMask;
return getSetting("relayBootMask", defaultMask);
}
void _relayMaskSettings(const String& mask) {
setSetting("relayBootMask", mask);
}
inline void _relayMaskSettings(const RelayMaskHelper& mask) {
_relayMaskSettings(settings::internal::serialize(mask));
}
} // namespace
// Pulse timers (timer after ON or OFF event)
// TODO: integrate with scheduled ON or OFF
void relayPulse(unsigned char id) {
auto& relay = _relays[id];
if (!relay.pulseTicker) {
relay.pulseTicker = new Ticker();
}
relay.pulseTicker->detach();
auto mode = relay.pulse;
if (mode == RELAY_PULSE_NONE) {
return;
}
auto ms = relay.pulse_ms;
if (ms == 0) {
return;
}
// TODO: drive ticker on a lower 'tick rate', allow delays longer than 114 minutes
// we don't necessarily need millisecond precision. which is also not achievable, most likely,
// because of the SDK scheduler. or, at least not for every available provider.
// limit is per https://www.espressif.com/sites/default/files/documentation/2c-esp8266_non_os_sdk_api_reference_en.pdf
// > 3.1.1 os_timer_arm
// > the timer value allowed ranges from 5 to 0x68D7A3.
if ((ms < 5) || (ms >= 0x68D7A3)) {
DEBUG_MSG_P(PSTR("[RELAY] Unable to schedule the delay %lums (longer than 114 minutes)\n"), ms);
return;
}
if ((mode == RELAY_PULSE_ON) != relay.current_status) {
DEBUG_MSG_P(PSTR("[RELAY] Scheduling relay #%d back in %lums (pulse)\n"), id, ms);
relay.pulseTicker->once_ms(ms, relayToggle, id);
// Reconfigure after dynamic pulse
relay.pulse = getSetting({"relayPulse", id}, RELAY_PULSE_MODE);
relay.pulse_ms = 1000 * getSetting({"relayTime", id}, 0.);
}
}
// General relay status control
bool relayStatus(unsigned char id, bool status, bool report, bool group_report) {
if (id == RELAY_NONE) return false;
if (id >= _relays.size()) return false;
if (!_relayStatusLock(id, status)) {
DEBUG_MSG_P(PSTR("[RELAY] #%d is locked to %s\n"), id, _relays[id].current_status ? "ON" : "OFF");
_relays[id].report = true;
_relays[id].group_report = true;
return false;
}
bool changed = false;
if (_relays[id].current_status == status) {
if (_relays[id].target_status != status) {
DEBUG_MSG_P(PSTR("[RELAY] #%d scheduled change cancelled\n"), id);
_relays[id].target_status = status;
_relays[id].report = false;
_relays[id].group_report = false;
_relays[id].change_delay = 0;
changed = true;
}
_relays[id].provider->notify(status);
if (_relay_status_notify) {
_relay_status_notify(id, status);
}
// Update the pulse counter if the relay is already in the non-normal state (#454)
relayPulse(id);
} else {
unsigned long current_time = millis();
unsigned long change_delay = status ? _relays[id].delay_on : _relays[id].delay_off;
_relays[id].fw_count++;
_relays[id].change_start = current_time;
_relays[id].change_delay = std::max(_relays[id].change_delay, change_delay);
// If current_time is off-limits the floodWindow...
const auto fw_diff = current_time - _relays[id].fw_start;
if (fw_diff > _relay_flood_window) {
// We reset the floodWindow
_relays[id].fw_start = current_time;
_relays[id].fw_count = 1;
// If current_time is in the floodWindow and there have been too many requests...
} else if (_relays[id].fw_count >= _relay_flood_changes) {
// We schedule the changes to the end of the floodWindow
// unless it's already delayed beyond that point
_relays[id].change_delay = std::max(change_delay, _relay_flood_window - fw_diff);
// Another option is to always move it forward, starting from current time
//_relays[id].fw_start = current_time;
}
_relays[id].target_status = status;
_relays[id].report = report;
_relays[id].group_report = group_report;
relaySync(id);
DEBUG_MSG_P(PSTR("[RELAY] #%d scheduled %s in %u ms\n"),
id, status ? "ON" : "OFF", _relays[id].change_delay
);
changed = true;
}
return changed;
}
bool relayStatus(unsigned char id, bool status) {
#if MQTT_SUPPORT
return relayStatus(id, status, mqttForward(), true);
#else
return relayStatus(id, status, false, true);
#endif
}
bool relayStatus(unsigned char id) {
// Check that relay ID is valid
if (id >= _relays.size()) return false;
// Get status directly from storage
return _relays[id].current_status;
}
bool relayStatusTarget(unsigned char id) {
if (id >= _relays.size()) return false;
return _relays[id].target_status;
}
void relaySync(unsigned char id) {
// No sync if none or only one relay
if (_relays.size() < 2) return;
// Do not go on if we are comming from a previous sync
if (_relayRecursive) return;
// Flag sync mode
_relayRecursive = true;
bool status = _relays[id].target_status;
// If RELAY_SYNC_SAME all relays should have the same state
if (_relay_sync_mode == RELAY_SYNC_SAME) {
for (unsigned short i=0; i<_relays.size(); i++) {
if (i != id) relayStatus(i, status);
}
// If RELAY_SYNC_FIRST all relays should have the same state as first if first changes
} else if (_relay_sync_mode == RELAY_SYNC_FIRST) {
if (id == 0) {
for (unsigned short i=1; i<_relays.size(); i++) {
relayStatus(i, status);
}
}
} else if ((_relay_sync_mode == RELAY_SYNC_NONE_OR_ONE) || (_relay_sync_mode == RELAY_SYNC_ONE)) {
// If NONE_OR_ONE or ONE and setting ON we should set OFF all the others
if (status) {
if (_relay_sync_mode != RELAY_SYNC_ANY) {
for (unsigned short other_id=0; other_id<_relays.size(); other_id++) {
if (other_id != id) {
relayStatus(other_id, false);
if (relayStatus(other_id)) {
_relaySyncRelaysDelay(other_id, id);
}
}
}
}
// If ONLY_ONE and setting OFF we should set ON the other one
} else {
if (_relay_sync_mode == RELAY_SYNC_ONE) {
unsigned char other_id = (id + 1) % _relays.size();
_relaySyncRelaysDelay(id, other_id);
relayStatus(other_id, true);
}
}
_relayLockAll();
}
// Unflag sync mode
_relayRecursive = false;
}
void relaySave(bool persist) {
RelayMaskHelper mask;
for (unsigned char id = 0; id < _relays.size(); ++id) {
mask.set(id, _relays[id].current_status);
}
// Persist only to rtcmem, unless requested to save to settings
DEBUG_MSG_P(PSTR("[RELAY] Relay mask: %s\n"), mask.toString().c_str());
_relayMaskRtcmem(mask);
// The 'persist' flag controls whether we are commiting this change or not.
// It is useful to set it to 'false' if the relay change triggering the
// save involves a relay whose boot mode is independent from current mode,
// thus storing the last relay value is not absolutely necessary.
// Nevertheless, we store the value in the EEPROM buffer so it will be written
// on the next commit.
if (persist) {
_relayMaskSettings(mask);
eepromCommit(); // TODO: should this respect settings auto-save?
}
}
void relaySave() {
relaySave(false);
}
void relayToggle(unsigned char id, bool report, bool group_report) {
if (id >= _relays.size()) return;
relayStatus(id, !relayStatus(id), report, group_report);
}
void relayToggle(unsigned char id) {
#if MQTT_SUPPORT
relayToggle(id, mqttForward(), true);
#else
relayToggle(id, false, true);
#endif
}
unsigned char relayCount() {
return _relays.size();
}
PayloadStatus relayParsePayload(const char * payload) {
#if MQTT_SUPPORT || API_SUPPORT
return rpcParsePayload(payload, [](const char* payload) {
if (_relay_rpc_payload_off.equals(payload)) return PayloadStatus::Off;
if (_relay_rpc_payload_on.equals(payload)) return PayloadStatus::On;
if (_relay_rpc_payload_toggle.equals(payload)) return PayloadStatus::Toggle;
return PayloadStatus::Unknown;
});
#else
return rpcParsePayload(payload);
#endif
}
// BACKWARDS COMPATIBILITY
void _relayBackwards() {
for (unsigned char id = 0; id < _relays.size(); ++id) {
const settings_key_t key {"mqttGroupInv", id};
if (!hasSetting(key)) continue;
setSetting({"mqttGroupSync", id}, getSetting(key));
delSetting(key);
}
}
void _relayBoot(unsigned char index, const RelayMaskHelper& mask) {
const auto boot_mode = getSetting({"relayBoot", index}, _relayBootMode(index));
auto status = false;
auto lock = RELAY_LOCK_DISABLED;
switch (boot_mode) {
case RELAY_BOOT_SAME:
status = mask[index];
break;
case RELAY_BOOT_TOGGLE:
status = !mask[index];
break;
case RELAY_BOOT_ON:
status = true;
break;
case RELAY_BOOT_LOCKED_ON:
status = true;
lock = RELAY_LOCK_ON;
break;
case RELAY_BOOT_OFF:
status = false;
break;
case RELAY_BOOT_LOCKED_OFF:
status = false;
lock = RELAY_LOCK_OFF;
break;
}
auto& relay = _relays[index];
relay.current_status = !status;
relay.target_status = status;
relay.lock = lock;
relay.change_start = millis();
relay.change_delay = status
? relay.delay_on
: relay.delay_off;
relay.provider->boot(status);
}
void _relayBootAll() {
auto mask = rtcmemStatus()
? _relayMaskRtcmem()
: _relayMaskSettings();
_relayRecursive = true;
bool once { true };
static RelayMask done;
for (unsigned char id = 0; id < relayCount(); ++id) {
if (done[id]) {
continue;
}
if (once) {
DEBUG_MSG_P(PSTR("[RELAY] Number of relays: %u, boot mask: %s\n"),
_relays.size(), mask.toString().c_str());
once = false;
}
done.set(id, true);
_relayBoot(id, mask);
}
_relayRecursive = false;
}
void _relayConfigure() {
for (unsigned char i = 0, relays = _relays.size() ; (i < relays); ++i) {
_relays[i].pulse = getSetting({"relayPulse", i}, RELAY_PULSE_MODE);
_relays[i].pulse_ms = 1000 * getSetting({"relayTime", i}, 0.);
_relays[i].delay_on = getSetting({"relayDelayOn", i}, _relayDelayOn(i));
_relays[i].delay_off = getSetting({"relayDelayOff", i}, _relayDelayOff(i));
}
_relay_flood_window = (1000 * getSetting("relayFloodTime", RELAY_FLOOD_WINDOW));
_relay_flood_changes = getSetting("relayFloodChanges", RELAY_FLOOD_CHANGES);
_relay_delay_interlock = getSetting("relayDelayInterlock", RELAY_DELAY_INTERLOCK);
_relay_sync_mode = getSetting("relaySync", RELAY_SYNC);
#if MQTT_SUPPORT || API_SUPPORT
settingsProcessConfig({
{_relay_rpc_payload_on, "relayPayloadOn", RELAY_MQTT_ON},
{_relay_rpc_payload_off, "relayPayloadOff", RELAY_MQTT_OFF},
{_relay_rpc_payload_toggle, "relayPayloadToggle", RELAY_MQTT_TOGGLE},
});
#endif // MQTT_SUPPORT
}
//------------------------------------------------------------------------------
// WEBSOCKETS
//------------------------------------------------------------------------------
#if WEB_SUPPORT
bool _relayWebSocketOnKeyCheck(const char * key, JsonVariant& value) {
return (strncmp(key, "relay", 5) == 0);
}
void _relayWebSocketUpdate(JsonObject& root) {
JsonObject& state = root.createNestedObject("relayState");
state["size"] = relayCount();
JsonArray& status = state.createNestedArray("status");
JsonArray& lock = state.createNestedArray("lock");
// Note: we use byte instead of bool to ever so slightly compress json output
for (unsigned char i=0; i<relayCount(); i++) {
status.add<uint8_t>(_relays[i].target_status);
lock.add(_relays[i].lock);
}
}
void _relayWebSocketSendRelays(JsonObject& root) {
JsonObject& config = root.createNestedObject("relayConfig");
config["size"] = relayCount();
config["start"] = 0;
const char* keys[] = {
"prov", "name", "boot", "pulse", "pulse_time"
};
JsonArray& schema = config.createNestedArray("schema");
schema.copyFrom(keys, sizeof(keys) / sizeof(*keys));
#if SCHEDULER_SUPPORT
schema.add("sch_last");
#endif
#if MQTT_SUPPORT
schema.add("group");
schema.add("group_sync");
schema.add("on_disc");
#endif
JsonArray& relays = config.createNestedArray("relays");
for (unsigned char id = 0; id < relayCount(); ++id) {
JsonArray& relay = relays.createNestedArray();
relay.add(_relays[id].provider->id());
relay.add(getSetting({"relayName", id}));
relay.add(getSetting({"relayBoot", id}, _relayBootMode(id)));
relay.add(_relays[id].pulse);
relay.add(_relays[id].pulse_ms / 1000.0);
#if SCHEDULER_SUPPORT
relay.add(getSetting({"relayLastSch", id}, SCHEDULER_RESTORE_LAST_SCHEDULE));
#endif
#if MQTT_SUPPORT
relay.add(getSetting({"mqttGroup", id}));
relay.add(getSetting({"mqttGroupSync", id}, 0));
relay.add(getSetting({"relayOnDisc", id}, 0));
#endif
}
}
void _relayWebSocketOnVisible(JsonObject& root) {
if (relayCount() == 0) return;
if (relayCount() > 1) {
root["multirelayVisible"] = 1;
root["relaySync"] = getSetting("relaySync", RELAY_SYNC);
root["relayDelayInterlock"] = getSetting("relayDelayInterlock", RELAY_DELAY_INTERLOCK);
}
root["relayVisible"] = 1;
}
void _relayWebSocketOnConnected(JsonObject& root) {
if (relayCount() == 0) return;
// Per-relay configuration
_relayWebSocketSendRelays(root);
}
void _relayWebSocketOnAction(uint32_t client_id, const char * action, JsonObject& data) {
if (strcmp(action, "relay") != 0) return;
if (data.containsKey("status")) {
unsigned int relayID = 0;
if (data.containsKey("id") && data.is<int>("id")) {
relayID = data["id"];
}
_relayHandlePayload(relayID, data["status"].as<const char*>());
}
}
void relaySetupWS() {
wsRegister()
.onVisible(_relayWebSocketOnVisible)
.onConnected(_relayWebSocketOnConnected)
.onData(_relayWebSocketUpdate)
.onAction(_relayWebSocketOnAction)
.onKeyCheck(_relayWebSocketOnKeyCheck);
}
#endif // WEB_SUPPORT
//------------------------------------------------------------------------------
// REST API
//------------------------------------------------------------------------------
#if API_SUPPORT
template <typename T>
bool _relayApiTryHandle(ApiRequest& request, T&& callback) {
auto id_param = request.wildcard(0);
unsigned char id;
if (!_relayTryParseId(id_param.c_str(), id)) {
return false;
}
return callback(id);
}
void relaySetupAPI() {
if (!relayCount()) {
return;
}
apiRegister(F(MQTT_TOPIC_RELAY),
[](ApiRequest&, JsonObject& root) {
JsonArray& relays = root.createNestedArray("relayStatus");
for (unsigned char id = 0; id < relayCount(); ++id) {
relays.add(_relays[id].target_status ? 1 : 0);
}
return true;
},
nullptr
);
apiRegister(F(MQTT_TOPIC_RELAY "/+"),
[](ApiRequest& request) {
return _relayApiTryHandle(request, [&](unsigned char id) {
request.send(String(_relays[id].target_status ? 1 : 0));
return true;
});
},
[](ApiRequest& request) {
return _relayApiTryHandle(request, [&](unsigned char id) {
return _relayHandlePayload(id, request.param(F("value")));
});
}
);
apiRegister(F(MQTT_TOPIC_PULSE "/+"),
[](ApiRequest& request) {
return _relayApiTryHandle(request, [&](unsigned char id) {
request.send(String(static_cast<double>(_relays[id].pulse_ms) / 1000));
return true;
});
},
[](ApiRequest& request) {
return _relayApiTryHandle(request, [&](unsigned char id) {
return _relayHandlePulsePayload(id, request.param(F("value")));
});
}
);
}
#endif // API_SUPPORT
//------------------------------------------------------------------------------
// MQTT
//------------------------------------------------------------------------------
#if MQTT_SUPPORT || API_SUPPORT
const String& relayPayloadOn() {
return _relay_rpc_payload_on;
}
const String& relayPayloadOff() {
return _relay_rpc_payload_off;
}
const String& relayPayloadToggle() {
return _relay_rpc_payload_toggle;
}
const char* relayPayload(PayloadStatus status) {
switch (status) {
case PayloadStatus::Off:
return _relay_rpc_payload_off.c_str();
case PayloadStatus::On:
return _relay_rpc_payload_on.c_str();
case PayloadStatus::Toggle:
return _relay_rpc_payload_toggle.c_str();
case PayloadStatus::Unknown:
default:
return "";
}
}
#endif // MQTT_SUPPORT || API_SUPPORT
#if MQTT_SUPPORT
void _relayMQTTGroup(unsigned char id) {
const String topic = getSetting({"mqttGroup", id});
if (!topic.length()) return;
const auto mode = getSetting({"mqttGroupSync", id}, RELAY_GROUP_SYNC_NORMAL);
if (mode == RELAY_GROUP_SYNC_RECEIVEONLY) return;
auto status = _relayStatusTyped(id);
if (mode == RELAY_GROUP_SYNC_INVERSE) status = _relayStatusInvert(status);
mqttSendRaw(topic.c_str(), relayPayload(status));
}
void relayMQTT(unsigned char id) {
if (id >= _relays.size()) return;
// Send state topic
if (_relays[id].report) {
_relays[id].report = false;
mqttSend(MQTT_TOPIC_RELAY, id, relayPayload(_relayStatusTyped(id)));
}
// Check group topic
if (_relays[id].group_report) {
_relays[id].group_report = false;
_relayMQTTGroup(id);
}
}
void relayMQTT() {
for (unsigned int id=0; id < _relays.size(); id++) {
mqttSend(MQTT_TOPIC_RELAY, id, relayPayload(_relayStatusTyped(id)));
}
}
void relayStatusWrap(unsigned char id, PayloadStatus value, bool is_group_topic) {
#if MQTT_SUPPORT
const auto forward = mqttForward();
#else
const auto forward = false;
#endif
switch (value) {
case PayloadStatus::Off:
relayStatus(id, false, forward, !is_group_topic);
break;
case PayloadStatus::On:
relayStatus(id, true, forward, !is_group_topic);
break;
case PayloadStatus::Toggle:
relayToggle(id, true, true);
break;
case PayloadStatus::Unknown:
default:
_relays[id].report = true;
relayMQTT(id);
break;
}
}
void relayMQTTCallback(unsigned int type, const char * topic, const char * payload) {
if (!relayCount()) {
return;
}
if (type == MQTT_CONNECT_EVENT) {
// Send status on connect
#if (HEARTBEAT_MODE == HEARTBEAT_NONE) or (not HEARTBEAT_REPORT_RELAY)
relayMQTT();
#endif
// Subscribe to own /set topic
char relay_topic[strlen(MQTT_TOPIC_RELAY) + 3];
snprintf_P(relay_topic, sizeof(relay_topic), PSTR("%s/+"), MQTT_TOPIC_RELAY);
mqttSubscribe(relay_topic);
// Subscribe to pulse topic
char pulse_topic[strlen(MQTT_TOPIC_PULSE) + 3];
snprintf_P(pulse_topic, sizeof(pulse_topic), PSTR("%s/+"), MQTT_TOPIC_PULSE);
mqttSubscribe(pulse_topic);
// Subscribe to group topics
for (unsigned char i=0; i < _relays.size(); i++) {
const auto t = getSetting({"mqttGroup", i});
if (t.length() > 0) mqttSubscribeRaw(t.c_str());
}
}
if (type == MQTT_MESSAGE_EVENT) {
String t = mqttMagnitude((char *) topic);
unsigned char id;
if (!_relayTryParseIdFromPath(t.c_str(), id)) {
return;
}
if (t.startsWith(MQTT_TOPIC_PULSE)) {
_relayHandlePulsePayload(id, payload);
_relays[id].report = mqttForward();
return;
}
if (t.startsWith(MQTT_TOPIC_RELAY)) {
_relayHandlePayload(id, payload);
_relays[id].report = mqttForward();
return;
}
// TODO: cache group topics instead of reading settings each time?
// TODO: this is another kvs::foreach case, since we slow down MQTT when settings grow
for (unsigned char i=0; i < _relays.size(); i++) {
const String t = getSetting({"mqttGroup", i});
if (!t.length()) break;
if (t == topic) {
auto value = relayParsePayload(payload);
if (value == PayloadStatus::Unknown) return;
if ((value == PayloadStatus::On) || (value == PayloadStatus::Off)) {
if (getSetting({"mqttGroupSync", i}, RELAY_GROUP_SYNC_NORMAL) == RELAY_GROUP_SYNC_INVERSE) {
value = _relayStatusInvert(value);
}
}
DEBUG_MSG_P(PSTR("[RELAY] Matched group topic for relayID %d\n"), i);
_relayHandleStatus(i, value);
_relays[i].group_report = false;
}
}
}
// TODO: safeguard against network issues. this one has good intentions, but we may end up
// switching relays back and forth when connection is unstable but reconnects very fast after the failure
if (type == MQTT_DISCONNECT_EVENT) {
for (unsigned char i=0; i < _relays.size(); i++) {
const auto reaction = getSetting({"relayOnDisc", i}, 0);
bool status;
switch (reaction) {
case 1:
status = false;
break;
case 2:
status = true;
break;
default:
return;
}
DEBUG_MSG_P(PSTR("[RELAY] Turn %s relay #%u due to MQTT disconnection\n"), status ? "ON" : "OFF", i);
relayStatus(i, status);
}
}
}
void relaySetupMQTT() {
mqttRegister(relayMQTTCallback);
}
#endif
//------------------------------------------------------------------------------
// Settings
//------------------------------------------------------------------------------
#if TERMINAL_SUPPORT
void _relayInitCommands() {
terminalRegisterCommand(F("RELAY"), [](const terminal::CommandContext& ctx) {
if (ctx.argc == 1) {
for (unsigned char index = 0; index < _relays.size(); ++index) {
auto& relay = _relays[index];
ctx.output.printf_P(PSTR("id=%02u provider=%s current=%s target=%s lock=%s\n"),
index,
relay.provider->id(),
relay.current_status ? "ON" : "OFF", relay.target_status ? "ON" : "OFF",
((relay.lock == RELAY_LOCK_ON) ? "ON" :
(relay.lock == RELAY_LOCK_OFF) ? "OFF" :
"NONE")
);
}
terminalOK(ctx);
return;
}
unsigned char id;
if (!_relayTryParseId(ctx.argv[1].c_str(), id)) {
terminalError(ctx, F("Invalid relayID"));
return;
}
if (ctx.argc > 2) {
auto status = relayParsePayload(ctx.argv[2].c_str());
if (PayloadStatus::Unknown == status) {
terminalError(ctx, F("Invalid status"));
return;
}
_relayHandleStatus(id, status);
}
auto& relay = _relays[id];
ctx.output.printf_P(PSTR("Status: %s\n"), relay.target_status ? "ON" : "OFF");
if ((relay.pulse != RELAY_PULSE_NONE) && (relay.pulse_ms)) {
ctx.output.printf_P(PSTR("Pulse: %s\n"), (relay.pulse == RELAY_PULSE_ON) ? "ON" : "OFF");
ctx.output.printf_P(PSTR("Pulse time: %lu\n"), relay.pulse_ms);
}
terminalOK(ctx);
});
}
#endif // TERMINAL_SUPPORT
//------------------------------------------------------------------------------
// Setup
//------------------------------------------------------------------------------
void _relayLoop() {
_relayProcess(false);
_relayProcess(true);
#if WEB_SUPPORT
if (_relay_report_ws) {
wsPost(_relayWebSocketUpdate);
_relay_report_ws = false;
}
#endif
}
// Dummy relays for virtual light switches (hardware-less), Sonoff Dual, Sonoff RF Bridge and Tuya
void relaySetupDummy(size_t size, bool reconfigure) {
if (size == _relayDummy) return;
const size_t new_size = ((_relays.size() - _relayDummy) + size);
if (new_size > RelaysMax) return;
_relayDummy = size;
_relays.resize(new_size);
if (reconfigure) {
_relayConfigure();
}
#if BROKER_SUPPORT
ConfigBroker::Publish("relayDummy", String(int(size)));
#endif
}
constexpr size_t _relayAdhocPins() {
return 0
#if RELAY1_PIN != GPIO_NONE
+ 1
#endif
#if RELAY2_PIN != GPIO_NONE
+ 1
#endif
#if RELAY3_PIN != GPIO_NONE
+ 1
#endif
#if RELAY4_PIN != GPIO_NONE
+ 1
#endif
#if RELAY5_PIN != GPIO_NONE
+ 1
#endif
#if RELAY6_PIN != GPIO_NONE
+ 1
#endif
#if RELAY7_PIN != GPIO_NONE
+ 1
#endif
#if RELAY8_PIN != GPIO_NONE
+ 1
#endif
;
}
struct RelayGpioProviderCfg {
GpioBase* base;
unsigned char main;
unsigned char reset;
};
RelayGpioProviderCfg _relayGpioProviderCfg(unsigned char index) {
return {
gpioBase(getSetting({"relayGPIOType", index}, _relayPinType(index))),
getSetting({"relayGPIO", index}, _relayPin(index)),
getSetting({"relayResetGPIO", index}, _relayResetPin(index))};
}
using GpioCheck = bool(*)(unsigned char);
std::unique_ptr<GpioProvider> _relayGpioProvider(unsigned char index, RelayType type) {
auto cfg = _relayGpioProviderCfg(index);
if (!cfg.base) {
return nullptr;
}
auto main = gpioRegister(*cfg.base, cfg.main);
if (!main) {
return nullptr;
}
auto reset = gpioRegister(*cfg.base, cfg.reset);
return std::make_unique<GpioProvider>(
index, type, std::move(main), std::move(reset)
);
}
std::unique_ptr<RelayProviderBase> _relaySetupProvider(unsigned char index) {
auto provider = getSetting({"relayProv", index}, _relayProvider(index));
auto type = getSetting({"relayType", index}, _relayType(index));
std::unique_ptr<RelayProviderBase> result;
switch (provider) {
case RelayProvider::Dummy:
result = std::make_unique<DummyProvider>();
break;
case RelayProvider::Gpio:
result = _relayGpioProvider(index, type);
break;
case RelayProvider::Stm:
#if RELAY_PROVIDER_STM_SUPPORT
result = std::make_unique<StmProvider>(index);
#endif
break;
case RelayProvider::Dual:
#if RELAY_PROVIDER_DUAL_SUPPORT
result = std::make_unique<DualProvider>(index);
#endif
break;
case RelayProvider::None:
break;
}
return result;
}
void _relaySetupAdhoc() {
_relays.reserve(_relayAdhocPins());
for (unsigned char id = 0; id < RelaysMax; ++id) {
auto impl = _relaySetupProvider(id);
if (!impl) {
break;
}
if (!impl->setup()) {
break;
}
_relays.emplace_back(impl.release());
}
}
void relaySetup() {
// Ad-hoc relays
_relaySetupAdhoc();
// Dummy (virtual) relays
relaySetupDummy(getSetting("relayDummy", DUMMY_RELAY_COUNT));
_relayBackwards();
_relayConfigure();
_relayBootAll();
_relayLoop();
#if WEB_SUPPORT
relaySetupWS();
#endif
#if API_SUPPORT
relaySetupAPI();
#endif
#if MQTT_SUPPORT
relaySetupMQTT();
#endif
#if TERMINAL_SUPPORT
_relayInitCommands();
#endif
// Main callbacks
espurnaRegisterLoop(_relayLoop);
espurnaRegisterReload(_relayConfigure);
}
bool relayAdd(std::unique_ptr<RelayProviderBase>&& provider) {
if (provider && provider->setup()) {
static bool scheduled { false };
_relays.emplace_back(provider.release());
if (!scheduled) {
schedule_function([]() {
_relayConfigure();
_relayBootAll();
scheduled = false;
});
}
return true;
}
return false;
}
#endif // RELAY_SUPPORT == 1