unleashed-firmware/targets/f7/ble_glue/services/battery_service.h

#pragma once

#include <stdint.h>
#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Battery service. Can be used in most profiles.
 * If auto_update is true, the service will automatically update the battery 
 * level and charging state from power state updates.
 */

typedef struct BleServiceBattery BleServiceBattery;

BleServiceBattery* ble_svc_battery_start(bool auto_update);

void ble_svc_battery_stop(BleServiceBattery* service);

bool ble_svc_battery_update_level(BleServiceBattery* service, uint8_t battery_level);

bool ble_svc_battery_update_power_state(BleServiceBattery* service, bool charging);

/* Global function, callable without a service instance 
 * Will update all service instances created with auto_update==true
 * Both parameters are optional, pass NULL if no value is available
 */
void ble_svc_battery_state_update(uint8_t* battery_level, bool* charging);

#ifdef __cplusplus
}
#endif