keyboard/hhkb_rn42/rn42/battery.h

   1 #ifndef POWER_H
   2 #define POWER_H
   3
   4 #include <stdint.h>
   5 #include <stdbool.h>
   6
   7 typedef enum {
   8     FULL_CHARGED,
   9     CHARGING,
  10     DISCHARGING,
  11     LOW_VOLTAGE,
  12 } battery_status_t;
  13
  14 typedef enum {
  15     LED_CHARGER = 0,
  16     LED_ON,
  17     LED_OFF,
  18     LED_TOGGLE,
  19 } battery_led_t;
  20
  21 /* Battery API */
  22 void battery_init(void);
  23 void battery_led(battery_led_t val);
  24 bool battery_charging(void);
  25 uint16_t battery_voltage(void);
  26 battery_status_t battery_status(void);
  27
  28 #define BATTERY_VOLTAGE_LOW_LIMIT       3500
  29 #define BATTERY_VOLTAGE_LOW_RECOVERY    3700
  30 // ADC offset:16, resolution:5mV
  31 #define BATTERY_ADC_OFFSET              16
  32 #define BATTERY_ADC_RESOLUTION          5
  33
  34 #endif