flipperzero-firmware/lib/drivers/bq27220.h

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#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);