firmware/src/Power.cpp
2020-06-28 19:03:39 -07:00

181 lines
6.1 KiB
C++

#include "power.h"
#include "PowerFSM.h"
#include "main.h"
#include "utils.h"
#include "sleep.h"
#ifdef TBEAM_V10
// FIXME. nasty hack cleanup how we load axp192
#undef AXP192_SLAVE_ADDRESS
#include "axp20x.h"
AXP20X_Class axp;
bool pmu_irq = false;
Power *power;
bool Power::setup()
{
axp192Init();
PeriodicTask::setup(); // We don't start our periodic task unless we actually found the device
setPeriod(1);
return axp192_found;
}
/// Reads power status to powerStatus singleton.
//
// TODO(girts): move this and other axp stuff to power.h/power.cpp.
void Power::readPowerStatus()
{
bool hasBattery = axp.isBatteryConnect();
int batteryVoltageMv = 0;
uint8_t batteryChargePercent = 0;
if (hasBattery) {
batteryVoltageMv = axp.getBattVoltage();
// If the AXP192 returns a valid battery percentage, use it
if (axp.getBattPercentage() >= 0) {
batteryChargePercent = axp.getBattPercentage();
} 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 maximum and minimum voltages defined in power.h
batteryChargePercent = clamp((int)(((batteryVoltageMv - BAT_MILLIVOLTS_EMPTY) * 1e2) / (BAT_MILLIVOLTS_FULL - BAT_MILLIVOLTS_EMPTY)), 0, 100);
}
}
// Notify any status instances that are observing us
const meshtastic::PowerStatus powerStatus = meshtastic::PowerStatus(hasBattery, axp.isVBUSPlug(), axp.isChargeing(), batteryVoltageMv, batteryChargePercent);
newStatus.notifyObservers(&powerStatus);
// If we have a battery at all and it is less than 10% full, force deep sleep
if (powerStatus.getHasBattery() && !powerStatus.getHasUSB() &&
axp.getBattVoltage() < MIN_BAT_MILLIVOLTS)
powerFSM.trigger(EVENT_LOW_BATTERY);
}
void Power::doTask()
{
readPowerStatus();
// Only read once every 20 seconds once the power status for the app has been initialized
if(statusHandler && statusHandler->isInitialized())
setPeriod(1000 * 20);
}
#endif // TBEAM_V10
#ifdef AXP192_SLAVE_ADDRESS
/**
* 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
*/
void Power::axp192Init()
{
if (axp192_found) {
if (!axp.begin(Wire, AXP192_SLAVE_ADDRESS)) {
DEBUG_MSG("AXP192 Begin PASS\n");
// axp.setChgLEDMode(LED_BLINK_4HZ);
DEBUG_MSG("DCDC1: %s\n", axp.isDCDC1Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("DCDC2: %s\n", axp.isDCDC2Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("LDO2: %s\n", axp.isLDO2Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("LDO3: %s\n", axp.isLDO3Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("DCDC3: %s\n", axp.isDCDC3Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("Exten: %s\n", axp.isExtenEnable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("----------------------------------------\n");
axp.setPowerOutPut(AXP192_LDO2, AXP202_ON); // LORA radio
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // GPS main power
axp.setPowerOutPut(AXP192_DCDC2, AXP202_ON);
axp.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
axp.setDCDC1Voltage(3300); // for the OLED power
DEBUG_MSG("DCDC1: %s\n", axp.isDCDC1Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("DCDC2: %s\n", axp.isDCDC2Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("LDO2: %s\n", axp.isLDO2Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("LDO3: %s\n", axp.isLDO3Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("DCDC3: %s\n", axp.isDCDC3Enable() ? "ENABLE" : "DISABLE");
DEBUG_MSG("Exten: %s\n", axp.isExtenEnable() ? "ENABLE" : "DISABLE");
axp.setChargeControlCur(AXP1XX_CHARGE_CUR_1320MA); // actual limit (in HW) on the tbeam is 450mA
#if 0
// Not connected
//val = 0xfc;
//axp._writeByte(AXP202_VHTF_CHGSET, 1, &val); // Set temperature protection
//not used
//val = 0x46;
//axp._writeByte(AXP202_OFF_CTL, 1, &val); // enable bat detection
#endif
axp.debugCharging();
#ifdef PMU_IRQ
pinMode(PMU_IRQ, INPUT);
attachInterrupt(
PMU_IRQ, [] { pmu_irq = true; }, FALLING);
axp.adc1Enable(AXP202_BATT_CUR_ADC1, 1);
axp.enableIRQ(AXP202_BATT_REMOVED_IRQ | AXP202_BATT_CONNECT_IRQ | AXP202_CHARGING_FINISHED_IRQ | AXP202_CHARGING_IRQ |
AXP202_VBUS_REMOVED_IRQ | AXP202_VBUS_CONNECT_IRQ | AXP202_PEK_SHORTPRESS_IRQ,
1);
axp.clearIRQ();
#endif
readPowerStatus();
} else {
DEBUG_MSG("AXP192 Begin FAIL\n");
}
} else {
DEBUG_MSG("AXP192 not found\n");
}
}
#endif
void Power::loop()
{
#ifdef PMU_IRQ
if (pmu_irq) {
pmu_irq = false;
axp.readIRQ();
DEBUG_MSG("pmu irq!\n");
if (axp.isChargingIRQ()) {
DEBUG_MSG("Battery start charging\n");
}
if (axp.isChargingDoneIRQ()) {
DEBUG_MSG("Battery fully charged\n");
}
if (axp.isVbusRemoveIRQ()) {
DEBUG_MSG("USB unplugged\n");
}
if (axp.isVbusPlugInIRQ()) {
DEBUG_MSG("USB plugged In\n");
}
if (axp.isBattPlugInIRQ()) {
DEBUG_MSG("Battery inserted\n");
}
if (axp.isBattRemoveIRQ()) {
DEBUG_MSG("Battery removed\n");
}
if (axp.isPEKShortPressIRQ()) {
DEBUG_MSG("PEK short button press\n");
}
readPowerStatus();
axp.clearIRQ();
}
#endif // T_BEAM_V10
}