#pragma once #include <stdint.h> #include <stdbool.h> #include <furi_hal_i2c.h> #define BQ27220_ERROR 0x0 #define BQ27220_SUCCESS 0x1 typedef struct { // Low byte, Low bit first bool DSG : 1; // The device is in DISCHARGE bool SYSDWN : 1; // System down bit indicating the system should shut down bool TDA : 1; // Terminate Discharge Alarm bool BATTPRES : 1; // Battery Present detected bool AUTH_GD : 1; // Detect inserted battery bool OCVGD : 1; // Good OCV measurement taken bool TCA : 1; // Terminate Charge Alarm bool RSVD : 1; // Reserved // High byte, Low bit first bool CHGINH : 1; // Charge inhibit bool FC : 1; // Full-charged is detected bool OTD : 1; // Overtemperature in discharge condition is detected bool OTC : 1; // Overtemperature in charge condition is detected bool SLEEP : 1; // Device is operating in SLEEP mode when set bool OCVFAIL : 1; // Status bit indicating that the OCV reading failed due to current bool OCVCOMP : 1; // An OCV measurement update is complete bool FD : 1; // Full-discharge is detected } BatteryStatus; _Static_assert(sizeof(BatteryStatus) == 2, "Incorrect structure size"); typedef struct { // Low byte, Low bit first bool CALMD : 1; /**< Calibration mode enabled */ uint8_t SEC : 2; /**< Current security access */ bool EDV2 : 1; /**< EDV2 threshold exceeded */ bool VDQ : 1; /**< Indicates if Current discharge cycle is NOT qualified or qualified for an FCC updated */ bool INITCOMP : 1; /**< gauge initialization is complete */ bool SMTH : 1; /**< RemainingCapacity is scaled by smooth engine */ bool BTPINT : 1; /**< BTP threshold has been crossed */ // High byte, Low bit first uint8_t RSVD1 : 2; bool CFGUPDATE : 1; /**< Gauge is in CONFIG UPDATE mode */ uint8_t RSVD0 : 5; } OperationStatus; _Static_assert(sizeof(OperationStatus) == 2, "Incorrect structure size"); typedef struct { // Low byte, Low bit first bool CCT : 1; bool CSYNC : 1; bool RSVD0 : 1; bool EDV_CMP : 1; bool SC : 1; bool FIXED_EDV0 : 1; uint8_t RSVD1 : 2; // High byte, Low bit first bool FCC_LIM : 1; bool RSVD2 : 1; bool FC_FOR_VDQ : 1; bool IGNORE_SD : 1; bool SME0 : 1; uint8_t RSVD3 : 3; } GaugingConfig; _Static_assert(sizeof(GaugingConfig) == 2, "Incorrect structure size"); typedef struct { union { GaugingConfig gauge_conf; uint16_t gauge_conf_raw; } cedv_conf; uint16_t full_charge_cap; uint16_t design_cap; uint16_t EDV0; uint16_t EDV1; uint16_t EDV2; uint16_t EMF; uint16_t C0; uint16_t R0; uint16_t T0; uint16_t R1; uint8_t TC; uint8_t C1; uint16_t DOD0; uint16_t DOD10; uint16_t DOD20; uint16_t DOD30; uint16_t DOD40; uint16_t DOD50; uint16_t DOD60; uint16_t DOD70; uint16_t DOD80; uint16_t DOD90; uint16_t DOD100; } ParamCEDV; /** Initialize Driver * @return true on success, false otherwise */ bool bq27220_init(FuriHalI2cBusHandle* handle, const ParamCEDV* cedv); /** Get battery voltage in mV or error */ uint16_t bq27220_get_voltage(FuriHalI2cBusHandle* handle); /** Get current in mA or error*/ int16_t bq27220_get_current(FuriHalI2cBusHandle* handle); /** Get battery status */ uint8_t bq27220_get_battery_status(FuriHalI2cBusHandle* handle, BatteryStatus* battery_status); /** Get operation status */ uint8_t bq27220_get_operation_status(FuriHalI2cBusHandle* handle, OperationStatus* operation_status); /** Get temperature in units of 0.1°K */ uint16_t bq27220_get_temperature(FuriHalI2cBusHandle* handle); /** Get compensated full charge capacity in in mAh */ uint16_t bq27220_get_full_charge_capacity(FuriHalI2cBusHandle* handle); /** Get design capacity in mAh */ uint16_t bq27220_get_design_capacity(FuriHalI2cBusHandle* handle); /** Get remaining capacity in in mAh */ uint16_t bq27220_get_remaining_capacity(FuriHalI2cBusHandle* handle); /** Get predicted remaining battery capacity in percents */ uint16_t bq27220_get_state_of_charge(FuriHalI2cBusHandle* handle); /** Get ratio of full charge capacity over design capacity in percents */ uint16_t bq27220_get_state_of_health(FuriHalI2cBusHandle* handle); void bq27220_change_design_capacity(FuriHalI2cBusHandle* handle, uint16_t capacity);