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firmware/src/Power.cpp
Wolfgang Nagele 7f063fbf81
Support external charge detection (#3386) 
* Support external charge detection

* trunk fmt
2024-03-12 11:55:31 -05:00

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/**
* @file Power.cpp
* @brief This file contains the implementation of the Power class, which is responsible for managing power-related functionality
* of the device. It includes battery level sensing, power management unit (PMU) control, and power state machine management. The
* Power class is used by the main device class to manage power-related functionality.
*
* The file also includes implementations of various battery level sensors, such as the AnalogBatteryLevel class, which assumes
* the battery voltage is attached via a voltage-divider to an analog input.
*
* This file is part of the Meshtastic project.
* For more information, see: https://meshtastic.org/
*/
#include "power.h"
#include "NodeDB.h"
#include "PowerFSM.h"
#include "buzz/buzz.h"
#include "configuration.h"
#include "main.h"
#include "meshUtils.h"
#include "sleep.h"
// Working USB detection for powered/charging states on the RAK platform
#ifdef NRF_APM
#include "nrfx_power.h"
#endif
#ifdef DEBUG_HEAP_MQTT
#include "mqtt/MQTT.h"
#include "target_specific.h"
#include <WiFi.h>
#endif
#ifndef DELAY_FOREVER
#define DELAY_FOREVER portMAX_DELAY
#endif
#if defined(BATTERY_PIN) && defined(ARCH_ESP32)
#ifndef BAT_MEASURE_ADC_UNIT // ADC1 is default
static const adc1_channel_t adc_channel = ADC_CHANNEL;
static const adc_unit_t unit = ADC_UNIT_1;
#else // ADC2
static const adc2_channel_t adc_channel = ADC_CHANNEL;
static const adc_unit_t unit = ADC_UNIT_2;
RTC_NOINIT_ATTR uint64_t RTC_reg_b;
#endif // BAT_MEASURE_ADC_UNIT
esp_adc_cal_characteristics_t *adc_characs = (esp_adc_cal_characteristics_t *)calloc(1, sizeof(esp_adc_cal_characteristics_t));
#ifndef ADC_ATTENUATION
static const adc_atten_t atten = ADC_ATTEN_DB_11;
#else
static const adc_atten_t atten = ADC_ATTENUATION;
#endif
#endif // BATTERY_PIN && ARCH_ESP32
#ifdef EXT_CHRG_DETECT
#ifndef EXT_CHRG_DETECT_MODE
static const uint8_t ext_chrg_detect_mode = INPUT;
#else
static const uint8_t ext_chrg_detect_mode = EXT_CHRG_DETECT_MODE;
#endif
#ifndef EXT_CHRG_DETECT_VALUE
static const uint8_t ext_chrg_detect_value = HIGH;
#else
static const uint8_t ext_chrg_detect_value = EXT_CHRG_DETECT_VALUE;
#endif
#endif
#if HAS_TELEMETRY && !defined(ARCH_PORTDUINO)
INA260Sensor ina260Sensor;
INA219Sensor ina219Sensor;
INA3221Sensor ina3221Sensor;
#endif
#ifdef HAS_PMU
#include "XPowersAXP192.tpp"
#include "XPowersAXP2101.tpp"
#include "XPowersLibInterface.hpp"
XPowersLibInterface *PMU = NULL;
#else
// Copy of the base class defined in axp20x.h.
// I'd rather not include axp20x.h as it brings Wire dependency.
class HasBatteryLevel
{
public:
/**
* Battery state of charge, from 0 to 100 or -1 for unknown
*/
virtual int getBatteryPercent() { return -1; }
/**
* The raw voltage of the battery or NAN if unknown
*/
virtual uint16_t getBattVoltage() { return 0; }
/**
* return true if there is a battery installed in this unit
*/
virtual bool isBatteryConnect() { return false; }
virtual bool isVbusIn() { return false; }
virtual bool isCharging() { return false; }
};
#endif
bool pmu_irq = false;
Power *power;
using namespace meshtastic;
#ifndef AREF_VOLTAGE
#if defined(ARCH_NRF52)
/*
* Internal Reference is +/-0.6V, with an adjustable gain of 1/6, 1/5, 1/4,
* 1/3, 1/2 or 1, meaning 3.6, 3.0, 2.4, 1.8, 1.2 or 0.6V for the ADC levels.
*
* External Reference is VDD/4, with an adjustable gain of 1, 2 or 4, meaning
* VDD/4, VDD/2 or VDD for the ADC levels.
*
* Default settings are internal reference with 1/6 gain (GND..3.6V ADC range)
*/
#define AREF_VOLTAGE 3.6
#else
#define AREF_VOLTAGE 3.3
#endif
#endif
/**
* If this board has a battery level sensor, set this to a valid implementation
*/
static HasBatteryLevel *batteryLevel; // Default to NULL for no battery level sensor
/**
* A simple battery level sensor that assumes the battery voltage is attached via a voltage-divider to an analog input
*/
class AnalogBatteryLevel : public HasBatteryLevel
{
/**
* Battery state of charge, from 0 to 100 or -1 for unknown
*/
virtual int getBatteryPercent() override
{
float v = getBattVoltage();
if (v < noBatVolt)
return -1; // If voltage is super low assume no battery installed
#ifdef NO_BATTERY_LEVEL_ON_CHARGE
// This does not work on a RAK4631 with battery connected
if (v > chargingVolt)
return 0; // While charging we can't report % full on the battery
#endif
/**
* @brief Battery voltage lookup table interpolation to obtain a more
* precise percentage rather than the old proportional one.
* @author Gabriele Russo
* @date 06/02/2024
*/
float battery_SOC = 0.0;
uint16_t voltage = v / NUM_CELLS; // single cell voltage (average)
for (int i = 0; i < NUM_OCV_POINTS; i++) {
if (OCV[i] <= voltage) {
if (i == 0) {
battery_SOC = 100.0; // 100% full
} else {
// interpolate between OCV[i] and OCV[i-1]
battery_SOC = (float)100.0 / (NUM_OCV_POINTS - 1.0) *
(NUM_OCV_POINTS - 1.0 - i + ((float)voltage - OCV[i]) / (OCV[i - 1] - OCV[i]));
}
break;
}
}
return clamp((int)(battery_SOC), 0, 100);
}
/**
* The raw voltage of the batteryin millivolts or NAN if unknown
*/
virtual uint16_t getBattVoltage() override
{
#if defined(HAS_TELEMETRY) && !defined(ARCH_PORTDUINO) && !defined(HAS_PMU)
if (hasINA()) {
LOG_DEBUG("Using INA on I2C addr 0x%x for device battery voltage\n", config.power.device_battery_ina_address);
return getINAVoltage();
}
#endif
#ifndef ADC_MULTIPLIER
#define ADC_MULTIPLIER 2.0
#endif
#ifndef BATTERY_SENSE_SAMPLES
#define BATTERY_SENSE_SAMPLES \
15 // Set the number of samples, it has an effect of increasing sensitivity in complex electromagnetic environment.
#endif
#ifdef BATTERY_PIN
// Override variant or default ADC_MULTIPLIER if we have the override pref
float operativeAdcMultiplier =
config.power.adc_multiplier_override > 0 ? config.power.adc_multiplier_override : ADC_MULTIPLIER;
// Do not call analogRead() often.
const uint32_t min_read_interval = 5000;
if (millis() - last_read_time_ms > min_read_interval) {
last_read_time_ms = millis();
uint32_t raw = 0;
float scaled = 0;
#ifdef ARCH_ESP32 // ADC block for espressif platforms
raw = espAdcRead();
scaled = esp_adc_cal_raw_to_voltage(raw, adc_characs);
scaled *= operativeAdcMultiplier;
#else // block for all other platforms
for (uint32_t i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
raw += analogRead(BATTERY_PIN);
}
raw = raw / BATTERY_SENSE_SAMPLES;
scaled = operativeAdcMultiplier * ((1000 * AREF_VOLTAGE) / pow(2, BATTERY_SENSE_RESOLUTION_BITS)) * raw;
#endif
last_read_value += (scaled - last_read_value) * 0.5; // Virtual LPF
// LOG_DEBUG("battery gpio %d raw val=%u scaled=%u filtered=%u\n", BATTERY_PIN, raw, (uint32_t)(scaled), (uint32_t)
// (last_read_value));
}
return last_read_value;
#endif // BATTERY_PIN
return 0;
}
#if defined(ARCH_ESP32) && !defined(HAS_PMU) && defined(BATTERY_PIN)
/**
* ESP32 specific function for getting calibrated ADC reads
*/
uint32_t espAdcRead()
{
uint32_t raw = 0;
uint8_t raw_c = 0; // raw reading counter
#ifndef BAT_MEASURE_ADC_UNIT // ADC1
#ifdef ADC_CTRL // enable adc voltage divider when we need to read
pinMode(ADC_CTRL, OUTPUT);
digitalWrite(ADC_CTRL, ADC_CTRL_ENABLED);
delay(10);
#endif
for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
int val_ = adc1_get_raw(adc_channel);
if (val_ >= 0) { // save only valid readings
raw += val_;
raw_c++;
}
// delayMicroseconds(100);
}
#ifdef ADC_CTRL // disable adc voltage divider when we need to read
digitalWrite(ADC_CTRL, !ADC_CTRL_ENABLED);
#endif
#else // ADC2
#ifdef ADC_CTRL
#if defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_WIRELESS_PAPER_V1_0)
pinMode(ADC_CTRL, OUTPUT);
digitalWrite(ADC_CTRL, LOW); // ACTIVE LOW
delay(10);
#endif
#endif // End ADC_CTRL
#ifdef CONFIG_IDF_TARGET_ESP32S3 // ESP32S3
// ADC2 wifi bug workaround not required, breaks compile
// On ESP32S3, ADC2 can take turns with Wifi (?)
int32_t adc_buf;
esp_err_t read_result;
// Multiple samples
for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
adc_buf = 0;
read_result = -1;
read_result = adc2_get_raw(adc_channel, ADC_WIDTH_BIT_12, &adc_buf);
if (read_result == ESP_OK) {
raw += adc_buf;
raw_c++; // Count valid samples
} else {
LOG_DEBUG("An attempt to sample ADC2 failed\n");
}
}
#else // Other ESP32
int32_t adc_buf = 0;
for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
// ADC2 wifi bug workaround, see
// https://github.com/espressif/arduino-esp32/issues/102
WRITE_PERI_REG(SENS_SAR_READ_CTRL2_REG, RTC_reg_b);
SET_PERI_REG_MASK(SENS_SAR_READ_CTRL2_REG, SENS_SAR2_DATA_INV);
adc2_get_raw(adc_channel, ADC_WIDTH_BIT_12, &adc_buf);
raw += adc_buf;
raw_c++;
}
#endif // BAT_MEASURE_ADC_UNIT
#ifdef ADC_CTRL
#if defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_WIRELESS_PAPER_V1_0)
digitalWrite(ADC_CTRL, HIGH);
#endif
#endif // End ADC_CTRL
#endif // End BAT_MEASURE_ADC_UNIT
return (raw / (raw_c < 1 ? 1 : raw_c));
}
#endif
/**
* return true if there is a battery installed in this unit
*/
virtual bool isBatteryConnect() override { return getBatteryPercent() != -1; }
/// If we see a battery voltage higher than physics allows - assume charger is pumping
/// in power
/// On some boards we don't have the power management chip (like AXPxxxx)
/// so we use EXT_PWR_DETECT GPIO pin to detect external power source
virtual bool isVbusIn() override
{
#ifdef EXT_PWR_DETECT
// if external powered that pin will be pulled up
if (digitalRead(EXT_PWR_DETECT) == HIGH) {
return true;
}
// if it's not HIGH - check the battery
#endif
return getBattVoltage() > chargingVolt;
}
/// Assume charging if we have a battery and external power is connected.
/// we can't be smart enough to say 'full'?
virtual bool isCharging() override
{
#ifdef EXT_CHRG_DETECT
return digitalRead(EXT_CHRG_DETECT) == ext_chrg_detect_value;
#else
return isBatteryConnect() && isVbusIn();
#endif
}
private:
/// If we see a battery voltage higher than physics allows - assume charger is pumping
/// in power
/// For heltecs with no battery connected, the measured voltage is 2204, so
// need to be higher than that, in this case is 2500mV (3000-500)
const uint16_t OCV[NUM_OCV_POINTS] = {OCV_ARRAY};
const float chargingVolt = (OCV[0] + 10) * NUM_CELLS;
const float noBatVolt = (OCV[NUM_OCV_POINTS - 1] - 500) * NUM_CELLS;
// Start value from minimum voltage for the filter to not start from 0
// that could trigger some events.
float last_read_value = (OCV[NUM_OCV_POINTS - 1] * NUM_CELLS);
uint32_t last_read_time_ms = 0;
#if defined(HAS_TELEMETRY) && !defined(ARCH_PORTDUINO)
uint16_t getINAVoltage()
{
if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_INA219].first == config.power.device_battery_ina_address) {
return ina219Sensor.getBusVoltageMv();
} else if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_INA260].first ==
config.power.device_battery_ina_address) {
return ina260Sensor.getBusVoltageMv();
} else if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_INA3221].first ==
config.power.device_battery_ina_address) {
return ina3221Sensor.getBusVoltageMv();
}
return 0;
}
bool hasINA()
{
if (!config.power.device_battery_ina_address) {
return false;
}
if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_INA219].first == config.power.device_battery_ina_address) {
if (!ina219Sensor.isInitialized())
return ina219Sensor.runOnce() > 0;
return ina219Sensor.isRunning();
} else if (nodeTelemetrySensorsMap[meshtastic_TelemetrySensorType_INA260].first ==
config.power.device_battery_ina_address) {
if (!ina260Sensor.isInitialized())
return ina260Sensor.runOnce() > 0;
return ina260Sensor.isRunning();
}
return false;
}
#endif
};
AnalogBatteryLevel analogLevel;
Power::Power() : OSThread("Power")
{
statusHandler = {};
low_voltage_counter = 0;
#ifdef DEBUG_HEAP
lastheap = memGet.getFreeHeap();
#endif
}
bool Power::analogInit()
{
#ifdef EXT_PWR_DETECT
pinMode(EXT_PWR_DETECT, INPUT);
#endif
#ifdef EXT_CHRG_DETECT
pinMode(EXT_CHRG_DETECT, ext_chrg_detect_mode);
#endif
#ifdef BATTERY_PIN
LOG_DEBUG("Using analog input %d for battery level\n", BATTERY_PIN);
// disable any internal pullups
pinMode(BATTERY_PIN, INPUT);
#ifndef BATTERY_SENSE_RESOLUTION_BITS
#define BATTERY_SENSE_RESOLUTION_BITS 10
#endif
#ifdef ARCH_ESP32 // ESP32 needs special analog stuff
#ifndef ADC_WIDTH // max resolution by default
static const adc_bits_width_t width = ADC_WIDTH_BIT_12;
#else
static const adc_bits_width_t width = ADC_WIDTH;
#endif
#ifndef BAT_MEASURE_ADC_UNIT // ADC1
adc1_config_width(width);
adc1_config_channel_atten(adc_channel, atten);
#else // ADC2
adc2_config_channel_atten(adc_channel, atten);
#ifndef CONFIG_IDF_TARGET_ESP32S3
// ADC2 wifi bug workaround
// Not required with ESP32S3, breaks compile
RTC_reg_b = READ_PERI_REG(SENS_SAR_READ_CTRL2_REG);
#endif
#endif
// calibrate ADC
esp_adc_cal_value_t val_type = esp_adc_cal_characterize(unit, atten, width, DEFAULT_VREF, adc_characs);
// show ADC characterization base
if (val_type == ESP_ADC_CAL_VAL_EFUSE_TP) {
LOG_INFO("ADCmod: ADC characterization based on Two Point values stored in eFuse\n");
} else if (val_type == ESP_ADC_CAL_VAL_EFUSE_VREF) {
LOG_INFO("ADCmod: ADC characterization based on reference voltage stored in eFuse\n");
}
#ifdef CONFIG_IDF_TARGET_ESP32S3
// ESP32S3
else if (val_type == ESP_ADC_CAL_VAL_EFUSE_TP_FIT) {
LOG_INFO("ADCmod: ADC Characterization based on Two Point values and fitting curve coefficients stored in eFuse\n");
}
#endif
else {
LOG_INFO("ADCmod: ADC characterization based on default reference voltage\n");
}
#endif // ARCH_ESP32
#ifdef ARCH_NRF52
#ifdef VBAT_AR_INTERNAL
analogReference(VBAT_AR_INTERNAL);
#else
analogReference(AR_INTERNAL); // 3.6V
#endif
#endif // ARCH_NRF52
#ifndef ARCH_ESP32
analogReadResolution(BATTERY_SENSE_RESOLUTION_BITS);
#endif
batteryLevel = &analogLevel;
return true;
#else
return false;
#endif
}
/**
* Initializes the Power class.
*
* @return true if the setup was successful, false otherwise.
*/
bool Power::setup()
{
bool found = axpChipInit() || analogInit();
enabled = found;
low_voltage_counter = 0;
return found;
}
void Power::shutdown()
{
LOG_INFO("Shutting down\n");
#ifdef HAS_PMU
if (pmu_found == true) {
PMU->setChargingLedMode(XPOWERS_CHG_LED_OFF);
PMU->shutdown();
}
#elif defined(ARCH_NRF52) || defined(ARCH_ESP32)
#ifdef PIN_LED1
ledOff(PIN_LED1);
#endif
#ifdef PIN_LED2
ledOff(PIN_LED2);
#endif
#ifdef PIN_LED3
ledOff(PIN_LED3);
#endif
doDeepSleep(DELAY_FOREVER, false);
#endif
}
/// Reads power status to powerStatus singleton.
//
// TODO(girts): move this and other axp stuff to power.h/power.cpp.
void Power::readPowerStatus()
{
if (batteryLevel) {
bool hasBattery = batteryLevel->isBatteryConnect();
uint32_t batteryVoltageMv = 0;
int8_t batteryChargePercent = 0;
if (hasBattery) {
batteryVoltageMv = batteryLevel->getBattVoltage();
// If the AXP192 returns a valid battery percentage, use it
if (batteryLevel->getBatteryPercent() >= 0) {
batteryChargePercent = batteryLevel->getBatteryPercent();
} else {
// If the AXP192 returns a percentage less than 0, the feature is either not supported or there is an error
// In that case, we compute an estimate of the charge percent based on open circuite voltage table defined
// in power.h
batteryChargePercent = clamp((int)(((batteryVoltageMv - (OCV[NUM_OCV_POINTS - 1] * NUM_CELLS)) * 1e2) /
((OCV[0] * NUM_CELLS) - (OCV[NUM_OCV_POINTS - 1] * NUM_CELLS))),
0, 100);
}
}
OptionalBool NRF_USB = OptFalse;
#ifdef NRF_APM // Section of code detects USB power on the RAK4631 and updates the power states. Takes 20 seconds or so to detect
// changes.
nrfx_power_usb_state_t nrf_usb_state = nrfx_power_usbstatus_get();
if (nrf_usb_state == NRFX_POWER_USB_STATE_DISCONNECTED) {
powerFSM.trigger(EVENT_POWER_DISCONNECTED);
NRF_USB = OptFalse;
} else {
powerFSM.trigger(EVENT_POWER_CONNECTED);
NRF_USB = OptTrue;
}
#endif
// Notify any status instances that are observing us
const PowerStatus powerStatus2 = PowerStatus(
hasBattery ? OptTrue : OptFalse, batteryLevel->isVbusIn() || NRF_USB == OptTrue ? OptTrue : OptFalse,
batteryLevel->isCharging() || NRF_USB == OptTrue ? OptTrue : OptFalse, batteryVoltageMv, batteryChargePercent);
LOG_DEBUG("Battery: usbPower=%d, isCharging=%d, batMv=%d, batPct=%d\n", powerStatus2.getHasUSB(),
powerStatus2.getIsCharging(), powerStatus2.getBatteryVoltageMv(), powerStatus2.getBatteryChargePercent());
newStatus.notifyObservers(&powerStatus2);
#ifdef DEBUG_HEAP
if (lastheap != memGet.getFreeHeap()) {
LOG_DEBUG("Threads running:");
int running = 0;
for (int i = 0; i < MAX_THREADS; i++) {
auto thread = concurrency::mainController.get(i);
if ((thread != nullptr) && (thread->enabled)) {
LOG_DEBUG(" %s", thread->ThreadName.c_str());
running++;
}
}
LOG_DEBUG("\n");
LOG_DEBUG("Heap status: %d/%d bytes free (%d), running %d/%d threads\n", memGet.getFreeHeap(), memGet.getHeapSize(),
memGet.getFreeHeap() - lastheap, running, concurrency::mainController.size(false));
lastheap = memGet.getFreeHeap();
}
#ifdef DEBUG_HEAP_MQTT
if (mqtt) {
// send MQTT-Packet with Heap-Size
uint8_t dmac[6];
getMacAddr(dmac); // Get our hardware ID
char mac[18];
sprintf(mac, "!%02x%02x%02x%02x", dmac[2], dmac[3], dmac[4], dmac[5]);
auto newHeap = memGet.getFreeHeap();
std::string heapTopic =
(*moduleConfig.mqtt.root ? moduleConfig.mqtt.root : "msh") + std::string("/2/heap/") + std::string(mac);
std::string heapString = std::to_string(newHeap);
mqtt->pubSub.publish(heapTopic.c_str(), heapString.c_str(), false);
auto wifiRSSI = WiFi.RSSI();
std::string wifiTopic =
(*moduleConfig.mqtt.root ? moduleConfig.mqtt.root : "msh") + std::string("/2/wifi/") + std::string(mac);
std::string wifiString = std::to_string(wifiRSSI);
mqtt->pubSub.publish(wifiTopic.c_str(), wifiString.c_str(), false);
}
#endif
#endif
// If we have a battery at all and it is less than 0%, force deep sleep if we have more than 10 low readings in
// a row. NOTE: min LiIon/LiPo voltage is 2.0 to 2.5V, current OCV min is set to 3100 that is large enough.
//
if (powerStatus2.getHasBattery() && !powerStatus2.getHasUSB()) {
if (batteryLevel->getBattVoltage() < OCV[NUM_OCV_POINTS - 1]) {
low_voltage_counter++;
LOG_DEBUG("Low voltage counter: %d/10\n", low_voltage_counter);
if (low_voltage_counter > 10) {
#ifdef ARCH_NRF52
// We can't trigger deep sleep on NRF52, it's freezing the board
LOG_DEBUG("Low voltage detected, but not triggering deep sleep\n");
#else
LOG_INFO("Low voltage detected, triggering deep sleep\n");
powerFSM.trigger(EVENT_LOW_BATTERY);
#endif
}
} else {
low_voltage_counter = 0;
}
}
} else {
// No power sensing on this board - tell everyone else we have no idea what is happening
const PowerStatus powerStatus3 = PowerStatus(OptUnknown, OptUnknown, OptUnknown, -1, -1);
newStatus.notifyObservers(&powerStatus3);
}
}
int32_t Power::runOnce()
{
readPowerStatus();
#ifdef HAS_PMU
// WE no longer use the IRQ line to wake the CPU (due to false wakes from sleep), but we do poll
// the IRQ status by reading the registers over I2C
if (PMU) {
PMU->getIrqStatus();
if (PMU->isVbusRemoveIrq()) {
LOG_INFO("USB unplugged\n");
powerFSM.trigger(EVENT_POWER_DISCONNECTED);
}
if (PMU->isVbusInsertIrq()) {
LOG_INFO("USB plugged In\n");
powerFSM.trigger(EVENT_POWER_CONNECTED);
}
/*
Other things we could check if we cared...
if (PMU->isBatChagerStartIrq()) {
LOG_DEBUG("Battery start charging\n");
}
if (PMU->isBatChagerDoneIrq()) {
LOG_DEBUG("Battery fully charged\n");
}
if (PMU->isBatInsertIrq()) {
LOG_DEBUG("Battery inserted\n");
}
if (PMU->isBatRemoveIrq()) {
LOG_DEBUG("Battery removed\n");
}
*/
#ifndef T_WATCH_S3 // FIXME - why is this triggering on the T-Watch S3?
if (PMU->isPekeyLongPressIrq()) {
LOG_DEBUG("PEK long button press\n");
screen->setOn(false);
}
#endif
PMU->clearIrqStatus();
}
#endif
// Only read once every 20 seconds once the power status for the app has been initialized
return (statusHandler && statusHandler->isInitialized()) ? (1000 * 20) : RUN_SAME;
}
/**
* Init the power manager chip
*
* axp192 power
DCDC1 0.7-3.5V @ 1200mA max -> OLED // If you turn this off you'll lose comms to the axp192 because the OLED and the
axp192 share the same i2c bus, instead use ssd1306 sleep mode DCDC2 -> unused DCDC3 0.7-3.5V @ 700mA max -> ESP32 (keep this
on!) LDO1 30mA -> charges GPS backup battery // charges the tiny J13 battery by the GPS to power the GPS ram (for a couple of
days), can not be turned off LDO2 200mA -> LORA LDO3 200mA -> GPS
*
*/
bool Power::axpChipInit()
{
#ifdef HAS_PMU
TwoWire *w = NULL;
// Use macro to distinguish which wire is used by PMU
#ifdef PMU_USE_WIRE1
w = &Wire1;
#else
w = &Wire;
#endif
/**
* It is not necessary to specify the wire pin,
* just input the wire, because the wire has been initialized in main.cpp
*/
if (!PMU) {
PMU = new XPowersAXP2101(*w);
if (!PMU->init()) {
LOG_WARN("Failed to find AXP2101 power management\n");
delete PMU;
PMU = NULL;
} else {
LOG_INFO("AXP2101 PMU init succeeded, using AXP2101 PMU\n");
}
}
if (!PMU) {
PMU = new XPowersAXP192(*w);
if (!PMU->init()) {
LOG_WARN("Failed to find AXP192 power management\n");
delete PMU;
PMU = NULL;
} else {
LOG_INFO("AXP192 PMU init succeeded, using AXP192 PMU\n");
}
}
if (!PMU) {
/*
* In XPowersLib, if the XPowersAXPxxx object is released, Wire.end() will be called at the same time.
* In order not to affect other devices, if the initialization of the PMU fails, Wire needs to be re-initialized once,
* if there are multiple devices sharing the bus.
* * */
#ifndef PMU_USE_WIRE1
w->begin(I2C_SDA, I2C_SCL);
#endif
return false;
}
batteryLevel = PMU;
if (PMU->getChipModel() == XPOWERS_AXP192) {
// lora radio power channel
PMU->setPowerChannelVoltage(XPOWERS_LDO2, 3300);
PMU->enablePowerOutput(XPOWERS_LDO2);
// oled module power channel,
// disable it will cause abnormal communication between boot and AXP power supply,
// do not turn it off
PMU->setPowerChannelVoltage(XPOWERS_DCDC1, 3300);
// enable oled power
PMU->enablePowerOutput(XPOWERS_DCDC1);
// gnss module power channel - now turned on in setGpsPower
PMU->setPowerChannelVoltage(XPOWERS_LDO3, 3300);
// PMU->enablePowerOutput(XPOWERS_LDO3);
// protected oled power source
PMU->setProtectedChannel(XPOWERS_DCDC1);
// protected esp32 power source
PMU->setProtectedChannel(XPOWERS_DCDC3);
// disable not use channel
PMU->disablePowerOutput(XPOWERS_DCDC2);
// disable all axp chip interrupt
PMU->disableIRQ(XPOWERS_AXP192_ALL_IRQ);
// Set constant current charging current
PMU->setChargerConstantCurr(XPOWERS_AXP192_CHG_CUR_450MA);
// Set up the charging voltage
PMU->setChargeTargetVoltage(XPOWERS_AXP192_CHG_VOL_4V2);
} else if (PMU->getChipModel() == XPOWERS_AXP2101) {
/*The alternative version of T-Beam 1.1 differs from T-Beam V1.1 in that it uses an AXP2101 power chip*/
if (HW_VENDOR == meshtastic_HardwareModel_TBEAM) {
// Unuse power channel
PMU->disablePowerOutput(XPOWERS_DCDC2);
PMU->disablePowerOutput(XPOWERS_DCDC3);
PMU->disablePowerOutput(XPOWERS_DCDC4);
PMU->disablePowerOutput(XPOWERS_DCDC5);
PMU->disablePowerOutput(XPOWERS_ALDO1);
PMU->disablePowerOutput(XPOWERS_ALDO4);
PMU->disablePowerOutput(XPOWERS_BLDO1);
PMU->disablePowerOutput(XPOWERS_BLDO2);
PMU->disablePowerOutput(XPOWERS_DLDO1);
PMU->disablePowerOutput(XPOWERS_DLDO2);
// GNSS RTC PowerVDD 3300mV
PMU->setPowerChannelVoltage(XPOWERS_VBACKUP, 3300);
PMU->enablePowerOutput(XPOWERS_VBACKUP);
// ESP32 VDD 3300mV
// ! No need to set, automatically open , Don't close it
// PMU->setPowerChannelVoltage(XPOWERS_DCDC1, 3300);
// PMU->setProtectedChannel(XPOWERS_DCDC1);
// LoRa VDD 3300mV
PMU->setPowerChannelVoltage(XPOWERS_ALDO2, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO2);
// GNSS VDD 3300mV
PMU->setPowerChannelVoltage(XPOWERS_ALDO3, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO3);
} else if (HW_VENDOR == meshtastic_HardwareModel_LILYGO_TBEAM_S3_CORE ||
HW_VENDOR == meshtastic_HardwareModel_T_WATCH_S3) {
// t-beam s3 core
/**
* gnss module power channel
* The default ALDO4 is off, you need to turn on the GNSS power first, otherwise it will be invalid during
* initialization
*/
PMU->setPowerChannelVoltage(XPOWERS_ALDO4, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO4);
// lora radio power channel
PMU->setPowerChannelVoltage(XPOWERS_ALDO3, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO3);
// m.2 interface
PMU->setPowerChannelVoltage(XPOWERS_DCDC3, 3300);
PMU->enablePowerOutput(XPOWERS_DCDC3);
/**
* ALDO2 cannot be turned off.
* It is a necessary condition for sensor communication.
* It must be turned on to properly access the sensor and screen
* It is also responsible for the power supply of PCF8563
*/
PMU->setPowerChannelVoltage(XPOWERS_ALDO2, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO2);
// 6-axis , magnetometer ,bme280 , oled screen power channel
PMU->setPowerChannelVoltage(XPOWERS_ALDO1, 3300);
PMU->enablePowerOutput(XPOWERS_ALDO1);
// sdcard power channel
PMU->setPowerChannelVoltage(XPOWERS_BLDO1, 3300);
PMU->enablePowerOutput(XPOWERS_BLDO1);
#ifdef T_WATCH_S3
// DRV2605 power channel
PMU->setPowerChannelVoltage(XPOWERS_BLDO2, 3300);
PMU->enablePowerOutput(XPOWERS_BLDO2);
#endif
// PMU->setPowerChannelVoltage(XPOWERS_DCDC4, 3300);
// PMU->enablePowerOutput(XPOWERS_DCDC4);
// not use channel
PMU->disablePowerOutput(XPOWERS_DCDC2); // not elicited
PMU->disablePowerOutput(XPOWERS_DCDC5); // not elicited
PMU->disablePowerOutput(XPOWERS_DLDO1); // Invalid power channel, it does not exist
PMU->disablePowerOutput(XPOWERS_DLDO2); // Invalid power channel, it does not exist
PMU->disablePowerOutput(XPOWERS_VBACKUP);
}
// disable all axp chip interrupt
PMU->disableIRQ(XPOWERS_AXP2101_ALL_IRQ);
// Set the constant current charging current of AXP2101, temporarily use 500mA by default
PMU->setChargerConstantCurr(XPOWERS_AXP2101_CHG_CUR_500MA);
// Set up the charging voltage
PMU->setChargeTargetVoltage(XPOWERS_AXP2101_CHG_VOL_4V2);
}
PMU->clearIrqStatus();
// TBeam1.1 /T-Beam S3-Core has no external TS detection,
// it needs to be disabled, otherwise it will cause abnormal charging
PMU->disableTSPinMeasure();
// PMU->enableSystemVoltageMeasure();
PMU->enableVbusVoltageMeasure();
PMU->enableBattVoltageMeasure();
LOG_DEBUG("=======================================================================\n");
if (PMU->isChannelAvailable(XPOWERS_DCDC1)) {
LOG_DEBUG("DC1 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_DCDC1) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_DCDC1));
}
if (PMU->isChannelAvailable(XPOWERS_DCDC2)) {
LOG_DEBUG("DC2 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_DCDC2) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_DCDC2));
}
if (PMU->isChannelAvailable(XPOWERS_DCDC3)) {
LOG_DEBUG("DC3 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_DCDC3) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_DCDC3));
}
if (PMU->isChannelAvailable(XPOWERS_DCDC4)) {
LOG_DEBUG("DC4 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_DCDC4) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_DCDC4));
}
if (PMU->isChannelAvailable(XPOWERS_LDO2)) {
LOG_DEBUG("LDO2 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_LDO2) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_LDO2));
}
if (PMU->isChannelAvailable(XPOWERS_LDO3)) {
LOG_DEBUG("LDO3 : %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_LDO3) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_LDO3));
}
if (PMU->isChannelAvailable(XPOWERS_ALDO1)) {
LOG_DEBUG("ALDO1: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_ALDO1) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_ALDO1));
}
if (PMU->isChannelAvailable(XPOWERS_ALDO2)) {
LOG_DEBUG("ALDO2: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_ALDO2) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_ALDO2));
}
if (PMU->isChannelAvailable(XPOWERS_ALDO3)) {
LOG_DEBUG("ALDO3: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_ALDO3) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_ALDO3));
}
if (PMU->isChannelAvailable(XPOWERS_ALDO4)) {
LOG_DEBUG("ALDO4: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_ALDO4) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_ALDO4));
}
if (PMU->isChannelAvailable(XPOWERS_BLDO1)) {
LOG_DEBUG("BLDO1: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_BLDO1) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_BLDO1));
}
if (PMU->isChannelAvailable(XPOWERS_BLDO2)) {
LOG_DEBUG("BLDO2: %s Voltage:%u mV \n", PMU->isPowerChannelEnable(XPOWERS_BLDO2) ? "+" : "-",
PMU->getPowerChannelVoltage(XPOWERS_BLDO2));
}
LOG_DEBUG("=======================================================================\n");
// We can safely ignore this approach for most (or all) boards because MCU turned off
// earlier than battery discharged to 2.6V.
//
// Unfortanly for now we can't use this killswitch for RAK4630-based boards because they have a bug with
// battery voltage measurement. Probably it sometimes drops to low values.
#ifndef RAK4630
// Set PMU shutdown voltage at 2.6V to maximize battery utilization
PMU->setSysPowerDownVoltage(2600);
#endif
#ifdef PMU_IRQ
uint64_t pmuIrqMask = 0;
if (PMU->getChipModel() == XPOWERS_AXP192) {
pmuIrqMask = XPOWERS_AXP192_VBUS_INSERT_IRQ | XPOWERS_AXP192_BAT_INSERT_IRQ | XPOWERS_AXP192_PKEY_SHORT_IRQ;
} else if (PMU->getChipModel() == XPOWERS_AXP2101) {
pmuIrqMask = XPOWERS_AXP2101_VBUS_INSERT_IRQ | XPOWERS_AXP2101_BAT_INSERT_IRQ | XPOWERS_AXP2101_PKEY_SHORT_IRQ;
}
pinMode(PMU_IRQ, INPUT);
attachInterrupt(
PMU_IRQ, [] { pmu_irq = true; }, FALLING);
// we do not look for AXPXXX_CHARGING_FINISHED_IRQ & AXPXXX_CHARGING_IRQ because it occurs repeatedly while there is
// no battery also it could cause inadvertent waking from light sleep just because the battery filled
// we don't look for AXPXXX_BATT_REMOVED_IRQ because it occurs repeatedly while no battery installed
// we don't look at AXPXXX_VBUS_REMOVED_IRQ because we don't have anything hooked to vbus
PMU->enableIRQ(pmuIrqMask);
PMU->clearIrqStatus();
#endif /*PMU_IRQ*/
readPowerStatus();
pmu_found = true;
return pmu_found;
#else
return false;
#endif
}
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