Fork of the espurna firmware for `mhsw` switches
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/*
SYSTEM MODULE
Copyright (C) 2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include <Ticker.h>
#include <EEPROM_Rotate.h>
#include "system.h"
// -----------------------------------------------------------------------------
bool _system_send_heartbeat = false;
unsigned char _heartbeat_mode = HEARTBEAT_MODE;
unsigned long _heartbeat_interval = HEARTBEAT_INTERVAL;
// Calculated load average 0 to 100;
unsigned short int _load_average = 100;
// -----------------------------------------------------------------------------
union system_rtcmem_t {
struct {
uint8_t stability_counter;
uint8_t reset_reason;
uint16_t _reserved_;
} parts;
uint32_t value;
};
uint8_t systemStabilityCounter() {
system_rtcmem_t data;
data.value = Rtcmem->sys;
return data.parts.stability_counter;
}
void systemStabilityCounter(uint8_t count) {
system_rtcmem_t data;
data.value = Rtcmem->sys;
data.parts.stability_counter = count;
Rtcmem->sys = data.value;
}
uint8_t _systemResetReason() {
system_rtcmem_t data;
data.value = Rtcmem->sys;
return data.parts.reset_reason;
}
void _systemResetReason(uint8_t reason) {
system_rtcmem_t data;
data.value = Rtcmem->sys;
data.parts.reset_reason = reason;
Rtcmem->sys = data.value;
}
#if SYSTEM_CHECK_ENABLED
// Call this method on boot with start=true to increase the crash counter
// Call it again once the system is stable to decrease the counter
// If the counter reaches SYSTEM_CHECK_MAX then the system is flagged as unstable
// setting _systemOK = false;
//
// An unstable system will only have serial access, WiFi in AP mode and OTA
bool _systemStable = true;
void systemCheck(bool stable) {
uint8_t value = 0;
if (stable) {
value = 0;
DEBUG_MSG_P(PSTR("[MAIN] System OK\n"));
} else {
if (!rtcmemStatus()) {
systemStabilityCounter(1);
return;
}
value = systemStabilityCounter();
if (++value > SYSTEM_CHECK_MAX) {
_systemStable = false;
value = 0;
DEBUG_MSG_P(PSTR("[MAIN] System UNSTABLE\n"));
}
}
systemStabilityCounter(value);
}
bool systemCheck() {
return _systemStable;
}
void systemCheckLoop() {
static bool checked = false;
if (!checked && (millis() > SYSTEM_CHECK_TIME)) {
// Flag system as stable
systemCheck(true);
checked = true;
}
}
#endif
// -----------------------------------------------------------------------------
// Reset
// -----------------------------------------------------------------------------
Ticker _defer_reset;
uint8_t _reset_reason = 0;
// system_get_rst_info() result is cached by the Core init for internal use
uint32_t systemResetReason() {
return resetInfo.reason;
}
void customResetReason(unsigned char reason) {
_reset_reason = reason;
_systemResetReason(reason);
}
unsigned char customResetReason() {
static unsigned char status = 255;
if (status == 255) {
if (rtcmemStatus()) status = _systemResetReason();
if (status > 0) customResetReason(0);
if (status > CUSTOM_RESET_MAX) status = 0;
}
return status;
}
void reset() {
ESP.restart();
}
void deferredReset(unsigned long delay, unsigned char reason) {
_defer_reset.once_ms(delay, customResetReason, reason);
}
bool checkNeedsReset() {
return _reset_reason > 0;
}
// -----------------------------------------------------------------------------
void systemSendHeartbeat() {
_system_send_heartbeat = true;
}
bool systemGetHeartbeat() {
return _system_send_heartbeat;
}
unsigned long systemLoadAverage() {
return _load_average;
}
void _systemSetupHeartbeat() {
_heartbeat_mode = getSetting("hbMode", HEARTBEAT_MODE).toInt();
_heartbeat_interval = getSetting("hbInterval", HEARTBEAT_INTERVAL).toInt();
}
#if WEB_SUPPORT
bool _systemWebSocketOnKeyCheck(const char * key, JsonVariant& value) {
if (strncmp(key, "sys", 3) == 0) return true;
if (strncmp(key, "hb", 2) == 0) return true;
return false;
}
#endif
void systemLoop() {
// -------------------------------------------------------------------------
// User requested reset
// -------------------------------------------------------------------------
if (checkNeedsReset()) {
reset();
}
// -------------------------------------------------------------------------
// Check system stability
// -------------------------------------------------------------------------
#if SYSTEM_CHECK_ENABLED
systemCheckLoop();
#endif
// -------------------------------------------------------------------------
// Heartbeat
// -------------------------------------------------------------------------
if (_system_send_heartbeat && _heartbeat_mode == HEARTBEAT_ONCE) {
heartbeat();
_system_send_heartbeat = false;
} else if (_heartbeat_mode == HEARTBEAT_REPEAT || _heartbeat_mode == HEARTBEAT_REPEAT_STATUS) {
static unsigned long last_hbeat = 0;
#if NTP_SUPPORT
if ((_system_send_heartbeat && ntpSynced()) || (millis() - last_hbeat > _heartbeat_interval * 1000)) {
#else
if (_system_send_heartbeat || (millis() - last_hbeat > _heartbeat_interval * 1000)) {
#endif
last_hbeat = millis();
heartbeat();
_system_send_heartbeat = false;
}
}
// -------------------------------------------------------------------------
// Load Average calculation
// -------------------------------------------------------------------------
static unsigned long last_loadcheck = 0;
static unsigned long load_counter_temp = 0;
load_counter_temp++;
if (millis() - last_loadcheck > LOADAVG_INTERVAL) {
static unsigned long load_counter = 0;
static unsigned long load_counter_max = 1;
load_counter = load_counter_temp;
load_counter_temp = 0;
if (load_counter > load_counter_max) {
load_counter_max = load_counter;
}
_load_average = 100 - (100 * load_counter / load_counter_max);
last_loadcheck = millis();
}
}
void _systemSetupSpecificHardware() {
//The ESPLive has an ADC MUX which needs to be configured.
#if defined(MANCAVEMADE_ESPLIVE)
pinMode(16, OUTPUT);
digitalWrite(16, HIGH); //Defualt CT input (pin B, solder jumper B)
#endif
// These devices use the hardware UART
// to communicate to secondary microcontrollers
#if (RF_SUPPORT && !RFB_DIRECT) || (RELAY_PROVIDER == RELAY_PROVIDER_DUAL) || (RELAY_PROVIDER == RELAY_PROVIDER_STM)
Serial.begin(SERIAL_BAUDRATE);
#endif
}
void systemSetup() {
#if SPIFFS_SUPPORT
SPIFFS.begin();
#endif
// Question system stability
#if SYSTEM_CHECK_ENABLED
systemCheck(false);
#endif
#if WEB_SUPPORT
wsRegister().onKeyCheck(_systemWebSocketOnKeyCheck);
#endif
// Init device-specific hardware
_systemSetupSpecificHardware();
// Register Loop
espurnaRegisterLoop(systemLoop);
// Cache Heartbeat values
_systemSetupHeartbeat();
}