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mhsw-espurna/code/espurna/system.cpp

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/*
SYSTEM MODULE
Copyright (C) 2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include "espurna.h"
#include <Ticker.h>
#include <Schedule.h>
#include "rtcmem.h"
#include "ws.h"
#include "ntp.h"
#include <cstdint>
#include <forward_list>
#include <vector>
#include "libs/TypeChecks.h"
// -----------------------------------------------------------------------------
// This method is called by the SDK early on boot to know where to connect the ADC
int __get_adc_mode() {
return (int) (ADC_MODE_VALUE);
}
// -----------------------------------------------------------------------------
namespace settings {
namespace internal {
template <>
heartbeat::Mode convert(const String& value) {
auto len = value.length();
if (len == 1) {
switch (*value.c_str()) {
case '0':
return heartbeat::Mode::None;
case '1':
return heartbeat::Mode::Once;
case '2':
return heartbeat::Mode::Repeat;
}
} else if (len > 1) {
if (value == F("none")) {
return heartbeat::Mode::None;
} else if (value == F("once")) {
return heartbeat::Mode::Once;
} else if (value == F("repeat")) {
return heartbeat::Mode::Repeat;
}
}
return heartbeat::Mode::None;
}
template <>
heartbeat::Seconds convert(const String& value) {
return heartbeat::Seconds(convert<unsigned long>(value));
}
template <>
heartbeat::Milliseconds convert(const String& value) {
return heartbeat::Milliseconds(convert<unsigned long>(value));
}
} // namespace internal
} // namespace settings
String systemHeartbeatModeToPayload(heartbeat::Mode mode) {
const __FlashStringHelper* ptr { nullptr };
switch (mode) {
case heartbeat::Mode::None:
ptr = F("none");
break;
case heartbeat::Mode::Once:
ptr = F("once");
break;
case heartbeat::Mode::Repeat:
ptr = F("repeat");
break;
}
return String(ptr);
}
// -----------------------------------------------------------------------------
unsigned long systemFreeStack() {
return ESP.getFreeContStack();
}
HeapStats systemHeapStats() {
HeapStats stats;
ESP.getHeapStats(&stats.available, &stats.usable, &stats.frag_pct);
return stats;
}
void systemHeapStats(HeapStats& stats) {
stats = systemHeapStats();
}
unsigned long systemFreeHeap() {
return ESP.getFreeHeap();
}
unsigned long systemInitialFreeHeap() {
static unsigned long value { 0ul };
if (!value) {
value = systemFreeHeap();
}
return value;
}
//--------------------------------------------------------------------------------
union system_rtcmem_t {
struct {
uint8_t stability_counter;
uint8_t reset_reason;
uint16_t _reserved_;
} packed;
uint32_t value;
};
uint8_t systemStabilityCounter() {
system_rtcmem_t data;
data.value = Rtcmem->sys;
return data.packed.stability_counter;
}
void systemStabilityCounter(uint8_t count) {
system_rtcmem_t data;
data.value = Rtcmem->sys;
data.packed.stability_counter = count;
Rtcmem->sys = data.value;
}
CustomResetReason _systemRtcmemResetReason() {
system_rtcmem_t data;
data.value = Rtcmem->sys;
return static_cast<CustomResetReason>(data.packed.reset_reason);
}
void _systemRtcmemResetReason(CustomResetReason reason) {
system_rtcmem_t data;
data.value = Rtcmem->sys;
data.packed.reset_reason = static_cast<uint8_t>(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 = SYSTEM_CHECK_MAX;
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;
auto _reset_reason = CustomResetReason::None;
String customResetReasonToPayload(CustomResetReason reason) {
const __FlashStringHelper* ptr { nullptr };
switch (reason) {
case CustomResetReason::None:
ptr = F("None");
break;
case CustomResetReason::Button:
ptr = F("Hardware button");
break;
case CustomResetReason::Factory:
ptr = F("Factory reset");
break;
case CustomResetReason::Hardware:
ptr = F("Reboot from a Hardware request");
break;
case CustomResetReason::Mqtt:
ptr = F("Reboot from MQTT");
break;
case CustomResetReason::Ota:
ptr = F("Reboot after a successful OTA update");
break;
case CustomResetReason::Rpc:
ptr = F("Reboot from a RPC action");
break;
case CustomResetReason::Rule:
ptr = F("Reboot from an automation rule");
break;
case CustomResetReason::Scheduler:
ptr = F("Reboot from a scheduler action");
break;
case CustomResetReason::Terminal:
ptr = F("Reboot from a terminal command");
break;
case CustomResetReason::Web:
ptr = F("Reboot from web interface");
break;
}
return String(ptr);
}
// system_get_rst_info() result is cached by the Core init for internal use
uint32_t systemResetReason() {
return resetInfo.reason;
}
void customResetReason(CustomResetReason reason) {
_reset_reason = reason;
_systemRtcmemResetReason(reason);
}
CustomResetReason customResetReason() {
bool once { true };
static auto reason = CustomResetReason::None;
if (once) {
once = false;
if (rtcmemStatus()) {
reason = _systemRtcmemResetReason();
}
customResetReason(CustomResetReason::None);
}
return reason;
}
void reset() {
ESP.restart();
}
bool eraseSDKConfig() {
return ESP.eraseConfig();
}
void deferredReset(unsigned long delay, CustomResetReason reason) {
_defer_reset.once_ms(delay, customResetReason, reason);
}
void factoryReset() {
DEBUG_MSG_P(PSTR("\n\nFACTORY RESET\n\n"));
resetSettings();
deferredReset(100, CustomResetReason::Factory);
}
bool checkNeedsReset() {
return _reset_reason != CustomResetReason::None;
}
// -----------------------------------------------------------------------------
// Calculated load average as a percentage
unsigned char _load_average { 0u };
unsigned char systemLoadAverage() {
return _load_average;
}
// -----------------------------------------------------------------------------
namespace heartbeat {
constexpr Mask defaultValue() {
return (Report::Status * (HEARTBEAT_REPORT_STATUS))
| (Report::Ssid * (HEARTBEAT_REPORT_SSID))
| (Report::Ip * (HEARTBEAT_REPORT_IP))
| (Report::Mac * (HEARTBEAT_REPORT_MAC))
| (Report::Rssi * (HEARTBEAT_REPORT_RSSI))
| (Report::Uptime * (HEARTBEAT_REPORT_UPTIME))
| (Report::Datetime * (HEARTBEAT_REPORT_DATETIME))
| (Report::Freeheap * (HEARTBEAT_REPORT_FREEHEAP))
| (Report::Vcc * (HEARTBEAT_REPORT_VCC))
| (Report::Relay * (HEARTBEAT_REPORT_RELAY))
| (Report::Light * (HEARTBEAT_REPORT_LIGHT))
| (Report::Hostname * (HEARTBEAT_REPORT_HOSTNAME))
| (Report::Description * (HEARTBEAT_REPORT_DESCRIPTION))
| (Report::App * (HEARTBEAT_REPORT_APP))
| (Report::Version * (HEARTBEAT_REPORT_VERSION))
| (Report::Board * (HEARTBEAT_REPORT_BOARD))
| (Report::Loadavg * (HEARTBEAT_REPORT_LOADAVG))
| (Report::Interval * (HEARTBEAT_REPORT_INTERVAL))
| (Report::Range * (HEARTBEAT_REPORT_RANGE))
| (Report::RemoteTemp * (HEARTBEAT_REPORT_REMOTE_TEMP))
| (Report::Bssid * (HEARTBEAT_REPORT_BSSID));
}
Mask currentValue() {
// because we start shifting from 1, we could use the
// first bit as a flag to enable all of the messages
auto value = getSetting("hbReport", defaultValue());
if (value == 1) {
value = std::numeric_limits<Mask>::max();
}
return value;
}
Mode currentMode() {
return getSetting("hbMode", HEARTBEAT_MODE);
}
Seconds currentInterval() {
return getSetting("hbInterval", HEARTBEAT_INTERVAL);
}
Milliseconds currentIntervalMs() {
return Milliseconds(currentInterval());
}
Ticker timer;
struct CallbackRunner {
Callback callback;
Mode mode;
heartbeat::Milliseconds interval;
heartbeat::Milliseconds last;
};
std::vector<CallbackRunner> runners;
} // namespace heartbeat
void _systemHeartbeat();
void systemStopHeartbeat(heartbeat::Callback callback) {
using namespace heartbeat;
auto found = std::remove_if(runners.begin(), runners.end(),
[&](const CallbackRunner& runner) {
return callback == runner.callback;
});
runners.erase(found, runners.end());
}
void systemHeartbeat(heartbeat::Callback callback, heartbeat::Mode mode, heartbeat::Seconds interval) {
if (mode == heartbeat::Mode::None) {
return;
}
auto msec = heartbeat::Milliseconds(interval);
if (!msec.count()) {
return;
}
auto offset = heartbeat::Milliseconds(millis() - 1ul);
heartbeat::runners.push_back({
callback, mode,
msec,
offset - msec
});
heartbeat::timer.detach();
static bool scheduled { false };
if (!scheduled) {
scheduled = true;
schedule_function([]() {
scheduled = false;
_systemHeartbeat();
});
}
}
void systemHeartbeat(heartbeat::Callback callback, heartbeat::Mode mode) {
systemHeartbeat(callback, mode, heartbeat::currentInterval());
}
void systemHeartbeat(heartbeat::Callback callback) {
systemHeartbeat(callback, heartbeat::currentMode(), heartbeat::currentInterval());
}
heartbeat::Seconds systemHeartbeatInterval() {
heartbeat::Milliseconds result(0ul);
for (auto& runner : heartbeat::runners) {
result = heartbeat::Milliseconds(result.count()
? std::min(result, runner.interval) : runner.interval);
}
return std::chrono::duration_cast<heartbeat::Seconds>(result);
}
void _systemHeartbeat() {
using namespace heartbeat;
constexpr Milliseconds BeatMin { 1000ul };
constexpr Milliseconds BeatMax { BeatMin * 10 };
auto next = Milliseconds(currentInterval());
auto ts = Milliseconds(millis());
if (runners.size()) {
auto mask = currentValue();
auto it = runners.begin();
auto end = runners.end();
while (it != end) {
auto diff = ts - (*it).last;
if (diff > (*it).interval) {
auto result = (*it).callback(mask);
if (result && ((*it).mode == Mode::Once)) {
it = runners.erase(it);
end = runners.end();
continue;
}
if (result) {
(*it).last = ts;
} else if (diff < ((*it).interval + BeatMax)) {
next = BeatMin;
}
next = std::min(next, (*it).interval);
} else {
next = std::min(next, (*it).interval - diff);
}
++it;
}
}
if (next < BeatMin) {
next = BeatMin;
}
timer.once_ms_scheduled(next.count(), _systemHeartbeat);
}
void systemScheduleHeartbeat() {
auto ts = heartbeat::Milliseconds(millis());
for (auto& runner : heartbeat::runners) {
runner.last = ts - runner.interval - heartbeat::Milliseconds(1ul);
}
schedule_function(_systemHeartbeat);
}
void _systemUpdateLoadAverage() {
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 = 100u - (100u * load_counter / load_counter_max);
last_loadcheck = millis();
}
}
#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;
}
void _systemWebSocketOnConnected(JsonObject& root) {
root["hbReport"] = heartbeat::currentValue();
root["hbInterval"] = getSetting("hbInterval", HEARTBEAT_INTERVAL).count();
root["hbMode"] = static_cast<uint8_t>(getSetting("hbMode", HEARTBEAT_MODE));
}
#endif
void systemLoop() {
if (checkNeedsReset()) {
reset();
return;
}
#if SYSTEM_CHECK_ENABLED
_systemCheckLoop();
#endif
_systemUpdateLoadAverage();
}
void _systemSetupSpecificHardware() {
#if defined(MANCAVEMADE_ESPLIVE)
// The ESPLive has an ADC MUX which needs to be configured.
// Default CT input (pin B, solder jumper B)
pinMode(16, OUTPUT);
digitalWrite(16, HIGH);
#endif
}
unsigned long systemUptime() {
static unsigned long last = 0;
static unsigned char overflows = 0;
if (millis() < last) {
++overflows;
}
last = millis();
unsigned long seconds = static_cast<unsigned long>(overflows)
* (std::numeric_limits<unsigned long>::max() / 1000ul) + (last / 1000ul);
return seconds;
}
void systemSetup() {
#if SPIFFS_SUPPORT
SPIFFS.begin();
#endif
// Question system stability
#if SYSTEM_CHECK_ENABLED
systemCheck(false);
#endif
#if WEB_SUPPORT
wsRegister()
.onConnected(_systemWebSocketOnConnected)
.onKeyCheck(_systemWebSocketOnKeyCheck);
#endif
_systemSetupSpecificHardware();
espurnaRegisterLoop(systemLoop);
schedule_function(_systemHeartbeat);
}