#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TAG "FuriHalPower" #ifndef FURI_HAL_POWER_DEBUG_WFI_GPIO #define FURI_HAL_POWER_DEBUG_WFI_GPIO (&gpio_ext_pb2) #endif #ifndef FURI_HAL_POWER_DEBUG_STOP_GPIO #define FURI_HAL_POWER_DEBUG_STOP_GPIO (&gpio_ext_pc3) #endif #ifndef FURI_HAL_POWER_STOP_MODE #define FURI_HAL_POWER_STOP_MODE (LL_PWR_MODE_STOP2) #endif typedef struct { volatile uint8_t insomnia; volatile uint8_t suppress_charge; bool gauge_ok; bool charger_ok; } FuriHalPower; static volatile FuriHalPower furi_hal_power = { .insomnia = 0, .suppress_charge = 0, .gauge_ok = false, .charger_ok = false, }; extern const BQ27220DMData furi_hal_power_gauge_data_memory[]; void furi_hal_power_init() { #ifdef FURI_HAL_POWER_DEBUG furi_hal_gpio_init_simple(FURI_HAL_POWER_DEBUG_WFI_GPIO, GpioModeOutputPushPull); furi_hal_gpio_init_simple(FURI_HAL_POWER_DEBUG_STOP_GPIO, GpioModeOutputPushPull); furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_WFI_GPIO, 0); furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_STOP_GPIO, 0); #endif LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1); LL_PWR_SMPS_SetMode(LL_PWR_SMPS_STEP_DOWN); LL_PWR_SetPowerMode(FURI_HAL_POWER_STOP_MODE); LL_C2_PWR_SetPowerMode(FURI_HAL_POWER_STOP_MODE); furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); // Find and init gauge if(bq27220_init(&furi_hal_i2c_handle_power)) { furi_hal_power.gauge_ok = bq27220_apply_data_memory( &furi_hal_i2c_handle_power, furi_hal_power_gauge_data_memory); } // Find and init charger furi_hal_power.charger_ok = bq25896_init(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); FURI_LOG_I(TAG, "Init OK"); } bool furi_hal_power_gauge_is_ok() { bool ret = true; BatteryStatus battery_status; OperationStatus operation_status; furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); if(!bq27220_get_battery_status(&furi_hal_i2c_handle_power, &battery_status) || !bq27220_get_operation_status(&furi_hal_i2c_handle_power, &operation_status)) { ret = false; } else { ret &= battery_status.BATTPRES; ret &= operation_status.INITCOMP; ret &= furi_hal_power.gauge_ok; } furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } bool furi_hal_power_is_shutdown_requested() { bool ret = false; BatteryStatus battery_status; furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); if(bq27220_get_battery_status(&furi_hal_i2c_handle_power, &battery_status) != BQ27220_ERROR) { ret = battery_status.SYSDWN; } furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } uint16_t furi_hal_power_insomnia_level() { return furi_hal_power.insomnia; } void furi_hal_power_insomnia_enter() { FURI_CRITICAL_ENTER(); furi_assert(furi_hal_power.insomnia < UINT8_MAX); furi_hal_power.insomnia++; FURI_CRITICAL_EXIT(); } void furi_hal_power_insomnia_exit() { FURI_CRITICAL_ENTER(); furi_assert(furi_hal_power.insomnia > 0); furi_hal_power.insomnia--; FURI_CRITICAL_EXIT(); } bool furi_hal_power_sleep_available() { return furi_hal_power.insomnia == 0; } static inline bool furi_hal_power_deep_sleep_available() { return furi_hal_bt_is_alive() && !furi_hal_rtc_is_flag_set(FuriHalRtcFlagLegacySleep) && !furi_hal_debug_is_gdb_session_active(); } static inline void furi_hal_power_light_sleep() { __WFI(); } static inline void furi_hal_power_suspend_aux_periphs() { // Disable USART furi_hal_uart_suspend(FuriHalUartIdUSART1); furi_hal_uart_suspend(FuriHalUartIdLPUART1); } static inline void furi_hal_power_resume_aux_periphs() { // Re-enable USART furi_hal_uart_resume(FuriHalUartIdUSART1); furi_hal_uart_resume(FuriHalUartIdLPUART1); } static inline void furi_hal_power_deep_sleep() { furi_hal_power_suspend_aux_periphs(); while(LL_HSEM_1StepLock(HSEM, CFG_HW_RCC_SEMID)) ; if(!LL_HSEM_1StepLock(HSEM, CFG_HW_ENTRY_STOP_MODE_SEMID)) { if(LL_PWR_IsActiveFlag_C2DS() || LL_PWR_IsActiveFlag_C2SB()) { // Release ENTRY_STOP_MODE semaphore LL_HSEM_ReleaseLock(HSEM, CFG_HW_ENTRY_STOP_MODE_SEMID, 0); // The switch on HSI before entering Stop Mode is required furi_hal_clock_switch_to_hsi(); } } else { /** * The switch on HSI before entering Stop Mode is required */ furi_hal_clock_switch_to_hsi(); } /* Release RCC semaphore */ LL_HSEM_ReleaseLock(HSEM, CFG_HW_RCC_SEMID, 0); // Prepare deep sleep LL_LPM_EnableDeepSleep(); #if defined(__CC_ARM) // Force store operations __force_stores(); #endif __WFI(); LL_LPM_EnableSleep(); /* Release ENTRY_STOP_MODE semaphore */ LL_HSEM_ReleaseLock(HSEM, CFG_HW_ENTRY_STOP_MODE_SEMID, 0); while(LL_HSEM_1StepLock(HSEM, CFG_HW_RCC_SEMID)) ; if(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) { furi_hal_clock_switch_to_pll(); } LL_HSEM_ReleaseLock(HSEM, CFG_HW_RCC_SEMID, 0); furi_hal_power_resume_aux_periphs(); furi_hal_rtc_sync_shadow(); } void furi_hal_power_sleep() { if(furi_hal_power_deep_sleep_available()) { #ifdef FURI_HAL_POWER_DEBUG furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_STOP_GPIO, 1); #endif furi_hal_power_deep_sleep(); #ifdef FURI_HAL_POWER_DEBUG furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_STOP_GPIO, 0); #endif } else { #ifdef FURI_HAL_POWER_DEBUG furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_WFI_GPIO, 1); #endif furi_hal_power_light_sleep(); #ifdef FURI_HAL_POWER_DEBUG furi_hal_gpio_write(FURI_HAL_POWER_DEBUG_WFI_GPIO, 0); #endif } } uint8_t furi_hal_power_get_pct() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); uint8_t ret = bq27220_get_state_of_charge(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } uint8_t furi_hal_power_get_bat_health_pct() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); uint8_t ret = bq27220_get_state_of_health(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } bool furi_hal_power_is_charging() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bool ret = bq25896_is_charging(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } bool furi_hal_power_is_charging_done() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bool ret = bq25896_is_charging_done(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } void furi_hal_power_shutdown() { furi_hal_power_insomnia_enter(); furi_hal_bt_reinit(); while(LL_HSEM_1StepLock(HSEM, CFG_HW_RCC_SEMID)) ; if(!LL_HSEM_1StepLock(HSEM, CFG_HW_ENTRY_STOP_MODE_SEMID)) { if(LL_PWR_IsActiveFlag_C2DS() || LL_PWR_IsActiveFlag_C2SB()) { // Release ENTRY_STOP_MODE semaphore LL_HSEM_ReleaseLock(HSEM, CFG_HW_ENTRY_STOP_MODE_SEMID, 0); } } // Prepare Wakeup pin LL_PWR_SetWakeUpPinPolarityLow(LL_PWR_WAKEUP_PIN2); LL_PWR_EnableWakeUpPin(LL_PWR_WAKEUP_PIN2); LL_C2_PWR_EnableWakeUpPin(LL_PWR_WAKEUP_PIN2); /* Release RCC semaphore */ LL_HSEM_ReleaseLock(HSEM, CFG_HW_RCC_SEMID, 0); LL_PWR_DisableBootC2(); LL_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN); LL_C2_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN); LL_LPM_EnableDeepSleep(); __WFI(); furi_crash("Insomniac core2"); } void furi_hal_power_off() { // Crutch: shutting down with ext 3V3 off is causing LSE to stop furi_hal_power_enable_external_3_3v(); furi_hal_vibro_on(true); furi_delay_us(50000); // Send poweroff to charger furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bq25896_poweroff(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); furi_hal_vibro_on(false); } void furi_hal_power_reset() { NVIC_SystemReset(); } bool furi_hal_power_enable_otg() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bq25896_set_boost_lim(&furi_hal_i2c_handle_power, BoostLim_2150); bq25896_enable_otg(&furi_hal_i2c_handle_power); furi_delay_ms(30); bool ret = bq25896_is_otg_enabled(&furi_hal_i2c_handle_power); bq25896_set_boost_lim(&furi_hal_i2c_handle_power, BoostLim_1400); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } void furi_hal_power_disable_otg() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bq25896_disable_otg(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); } bool furi_hal_power_is_otg_enabled() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bool ret = bq25896_is_otg_enabled(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } float furi_hal_power_get_battery_charge_voltage_limit() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); float ret = (float)bq25896_get_vreg_voltage(&furi_hal_i2c_handle_power) / 1000.0f; furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } void furi_hal_power_set_battery_charge_voltage_limit(float voltage) { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); // Adding 0.0005 is necessary because 4.016f is 4.015999794000, which gets truncated bq25896_set_vreg_voltage(&furi_hal_i2c_handle_power, (uint16_t)(voltage * 1000.0f + 0.0005f)); furi_hal_i2c_release(&furi_hal_i2c_handle_power); } bool furi_hal_power_check_otg_fault() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bool ret = bq25896_check_otg_fault(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } void furi_hal_power_check_otg_status() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); if(bq25896_check_otg_fault(&furi_hal_i2c_handle_power)) bq25896_disable_otg(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); } uint32_t furi_hal_power_get_battery_remaining_capacity() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); uint32_t ret = bq27220_get_remaining_capacity(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } uint32_t furi_hal_power_get_battery_full_capacity() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); uint32_t ret = bq27220_get_full_charge_capacity(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } uint32_t furi_hal_power_get_battery_design_capacity() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); uint32_t ret = bq27220_get_design_capacity(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } float furi_hal_power_get_battery_voltage(FuriHalPowerIC ic) { float ret = 0.0f; furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); if(ic == FuriHalPowerICCharger) { ret = (float)bq25896_get_vbat_voltage(&furi_hal_i2c_handle_power) / 1000.0f; } else if(ic == FuriHalPowerICFuelGauge) { ret = (float)bq27220_get_voltage(&furi_hal_i2c_handle_power) / 1000.0f; } furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } float furi_hal_power_get_battery_current(FuriHalPowerIC ic) { float ret = 0.0f; furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); if(ic == FuriHalPowerICCharger) { ret = (float)bq25896_get_vbat_current(&furi_hal_i2c_handle_power) / 1000.0f; } else if(ic == FuriHalPowerICFuelGauge) { ret = (float)bq27220_get_current(&furi_hal_i2c_handle_power) / 1000.0f; } furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } static float furi_hal_power_get_battery_temperature_internal(FuriHalPowerIC ic) { float ret = 0.0f; if(ic == FuriHalPowerICCharger) { // Linear approximation, +/- 5 C ret = (71.0f - (float)bq25896_get_ntc_mpct(&furi_hal_i2c_handle_power) / 1000) / 0.6f; } else if(ic == FuriHalPowerICFuelGauge) { ret = ((float)bq27220_get_temperature(&furi_hal_i2c_handle_power) - 2731.0f) / 10.0f; } return ret; } float furi_hal_power_get_battery_temperature(FuriHalPowerIC ic) { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); float ret = furi_hal_power_get_battery_temperature_internal(ic); furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } float furi_hal_power_get_usb_voltage() { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); float ret = (float)bq25896_get_vbus_voltage(&furi_hal_i2c_handle_power) / 1000.0f; furi_hal_i2c_release(&furi_hal_i2c_handle_power); return ret; } void furi_hal_power_enable_external_3_3v() { furi_hal_gpio_write(&gpio_periph_power, 1); } void furi_hal_power_disable_external_3_3v() { furi_hal_gpio_write(&gpio_periph_power, 0); } void furi_hal_power_suppress_charge_enter() { vTaskSuspendAll(); bool disable_charging = furi_hal_power.suppress_charge == 0; furi_hal_power.suppress_charge++; xTaskResumeAll(); if(disable_charging) { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bq25896_disable_charging(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); } } void furi_hal_power_suppress_charge_exit() { vTaskSuspendAll(); furi_hal_power.suppress_charge--; bool enable_charging = furi_hal_power.suppress_charge == 0; xTaskResumeAll(); if(enable_charging) { furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); bq25896_enable_charging(&furi_hal_i2c_handle_power); furi_hal_i2c_release(&furi_hal_i2c_handle_power); } } void furi_hal_power_info_get(PropertyValueCallback out, char sep, void* context) { furi_assert(out); FuriString* value = furi_string_alloc(); FuriString* key = furi_string_alloc(); PropertyValueContext property_context = { .key = key, .value = value, .out = out, .sep = sep, .last = false, .context = context}; if(sep == '.') { property_value_out(&property_context, NULL, 2, "format", "major", "2"); property_value_out(&property_context, NULL, 2, "format", "minor", "1"); } else { property_value_out(&property_context, NULL, 3, "power", "info", "major", "2"); property_value_out(&property_context, NULL, 3, "power", "info", "minor", "1"); } uint8_t charge = furi_hal_power_get_pct(); property_value_out(&property_context, "%u", 2, "charge", "level", charge); const char* charge_state; if(furi_hal_power_is_charging()) { if((charge < 100) && (!furi_hal_power_is_charging_done())) { charge_state = "charging"; } else { charge_state = "charged"; } } else { charge_state = "discharging"; } property_value_out(&property_context, NULL, 2, "charge", "state", charge_state); uint16_t charge_voltage_limit = (uint16_t)(furi_hal_power_get_battery_charge_voltage_limit() * 1000.f); property_value_out( &property_context, "%u", 3, "charge", "voltage", "limit", charge_voltage_limit); uint16_t voltage = (uint16_t)(furi_hal_power_get_battery_voltage(FuriHalPowerICFuelGauge) * 1000.f); property_value_out(&property_context, "%u", 2, "battery", "voltage", voltage); int16_t current = (int16_t)(furi_hal_power_get_battery_current(FuriHalPowerICFuelGauge) * 1000.f); property_value_out(&property_context, "%d", 2, "battery", "current", current); int16_t temperature = (int16_t)furi_hal_power_get_battery_temperature(FuriHalPowerICFuelGauge); property_value_out(&property_context, "%d", 2, "battery", "temp", temperature); property_value_out( &property_context, "%u", 2, "battery", "health", furi_hal_power_get_bat_health_pct()); property_value_out( &property_context, "%lu", 2, "capacity", "remain", furi_hal_power_get_battery_remaining_capacity()); property_value_out( &property_context, "%lu", 2, "capacity", "full", furi_hal_power_get_battery_full_capacity()); property_context.last = true; property_value_out( &property_context, "%lu", 2, "capacity", "design", furi_hal_power_get_battery_design_capacity()); furi_string_free(key); furi_string_free(value); } void furi_hal_power_debug_get(PropertyValueCallback out, void* context) { furi_assert(out); FuriString* value = furi_string_alloc(); FuriString* key = furi_string_alloc(); PropertyValueContext property_context = { .key = key, .value = value, .out = out, .sep = '.', .last = false, .context = context}; BatteryStatus battery_status; OperationStatus operation_status; furi_hal_i2c_acquire(&furi_hal_i2c_handle_power); // Power Debug version property_value_out(&property_context, NULL, 2, "format", "major", "1"); property_value_out(&property_context, NULL, 2, "format", "minor", "0"); property_value_out( &property_context, "%d", 2, "charger", "vbus", bq25896_get_vbus_voltage(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "charger", "vsys", bq25896_get_vsys_voltage(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "charger", "vbat", bq25896_get_vbat_voltage(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "charger", "vreg", bq25896_get_vreg_voltage(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "charger", "current", bq25896_get_vbat_current(&furi_hal_i2c_handle_power)); const uint32_t ntc_mpct = bq25896_get_ntc_mpct(&furi_hal_i2c_handle_power); if(bq27220_get_battery_status(&furi_hal_i2c_handle_power, &battery_status) && bq27220_get_operation_status(&furi_hal_i2c_handle_power, &operation_status)) { property_value_out(&property_context, "%lu", 2, "charger", "ntc", ntc_mpct); property_value_out(&property_context, "%d", 2, "gauge", "calmd", operation_status.CALMD); property_value_out(&property_context, "%d", 2, "gauge", "sec", operation_status.SEC); property_value_out(&property_context, "%d", 2, "gauge", "edv2", operation_status.EDV2); property_value_out(&property_context, "%d", 2, "gauge", "vdq", operation_status.VDQ); property_value_out( &property_context, "%d", 2, "gauge", "initcomp", operation_status.INITCOMP); property_value_out(&property_context, "%d", 2, "gauge", "smth", operation_status.SMTH); property_value_out(&property_context, "%d", 2, "gauge", "btpint", operation_status.BTPINT); property_value_out( &property_context, "%d", 2, "gauge", "cfgupdate", operation_status.CFGUPDATE); // Battery status register, part 1 property_value_out(&property_context, "%d", 2, "gauge", "chginh", battery_status.CHGINH); property_value_out(&property_context, "%d", 2, "gauge", "fc", battery_status.FC); property_value_out(&property_context, "%d", 2, "gauge", "otd", battery_status.OTD); property_value_out(&property_context, "%d", 2, "gauge", "otc", battery_status.OTC); property_value_out(&property_context, "%d", 2, "gauge", "sleep", battery_status.SLEEP); property_value_out(&property_context, "%d", 2, "gauge", "ocvfail", battery_status.OCVFAIL); property_value_out(&property_context, "%d", 2, "gauge", "ocvcomp", battery_status.OCVCOMP); property_value_out(&property_context, "%d", 2, "gauge", "fd", battery_status.FD); // Battery status register, part 2 property_value_out(&property_context, "%d", 2, "gauge", "dsg", battery_status.DSG); property_value_out(&property_context, "%d", 2, "gauge", "sysdwn", battery_status.SYSDWN); property_value_out(&property_context, "%d", 2, "gauge", "tda", battery_status.TDA); property_value_out( &property_context, "%d", 2, "gauge", "battpres", battery_status.BATTPRES); property_value_out(&property_context, "%d", 2, "gauge", "authgd", battery_status.AUTH_GD); property_value_out(&property_context, "%d", 2, "gauge", "ocvgd", battery_status.OCVGD); property_value_out(&property_context, "%d", 2, "gauge", "tca", battery_status.TCA); property_value_out(&property_context, "%d", 2, "gauge", "rsvd", battery_status.RSVD); // Voltage and current info property_value_out( &property_context, "%d", 3, "gauge", "capacity", "full", bq27220_get_full_charge_capacity(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 3, "gauge", "capacity", "design", bq27220_get_design_capacity(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 3, "gauge", "capacity", "remain", bq27220_get_remaining_capacity(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 3, "gauge", "state", "charge", bq27220_get_state_of_charge(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 3, "gauge", "state", "health", bq27220_get_state_of_health(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "gauge", "voltage", bq27220_get_voltage(&furi_hal_i2c_handle_power)); property_value_out( &property_context, "%d", 2, "gauge", "current", bq27220_get_current(&furi_hal_i2c_handle_power)); property_context.last = true; const int battery_temp = (int)furi_hal_power_get_battery_temperature_internal(FuriHalPowerICFuelGauge); property_value_out(&property_context, "%d", 2, "gauge", "temperature", battery_temp); } else { property_context.last = true; property_value_out(&property_context, "%lu", 2, "charger", "ntc", ntc_mpct); } furi_string_free(key); furi_string_free(value); furi_hal_i2c_release(&furi_hal_i2c_handle_power); }