charge_controller_target_mspm0L1304/src/battery_data/battery.h

#ifndef BATTERY_H
#define BATTERY_H

#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include "ti/driverlib/dl_timerg.h"
#include "src/config.h"

//Battery Discharge Safety Check
typedef enum: uint8_t{
    SLOT_STATE_OK= 0x00,
    SLOT_STATE_SOV= 0x01,
    SLOT_ERR_HOV= (0x02 | 0x80),

    SLOT_ERR_OVERTEMPERATURE= (0x03 | 0x80), // first bit indicates complete error

    // Control error states
    SLOT_WARN_LOWER_DAC_NOT_POSSIBLE=0x10,
    SLOT_WARN_HIGHER_DAC_NOT_POSSIBLE=0x11,
    SLOT_WARN_DAC_INVALID_VALUE=0x12,
    SLOT_WARN_LOWER_PWM_NOT_POSSIBLE=0x13,
    SLOT_WARN_HIGHER_PWM_NOT_POSSIBLE=0x14,

    SLOT_ERR_CONFIGBYTE = (0x25 | 0x80),
    SLOT_ERR_DAC_WRITE_FAILED= (0x26 | 0x80)
} SlotState;

typedef struct{
    uint16_t voltage;
    int16_t current;
    uint16_t temperature;
    SlotState state;
} BatteryMeasurement;

typedef struct {
    // for future extension of error states (overtemp etc): add here
    int16_t set_current;
    BatteryMeasurement measurement;
    uint16_t dac_value;
    uint16_t pwm_value;
    GPTIMER_Regs *timer;
    SlotState *state;
    int16_t high_side_voltage;
    uint8_t adc_addr;

} BatterySlot;

//global battery array declaration: extending visiblity of the variable to multiple source files: variable declaration
extern BatterySlot slot;

void slot_init(void);
void slot_read_state(void);
void slot_adjust_current(void);
void slot_disable(void);

#endif