keyboard/hhkb/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     UNKNOWN,
  13 } battery_status_t;
  14
  15 typedef enum {
  16     LED_CHARGER = 0,
  17     LED_ON,
  18     LED_OFF,
  19     LED_TOGGLE,
  20 } battery_led_t;
  21
  22 /* Battery API */
  23 void battery_init(void);
  24 void battery_led(battery_led_t val);
  25 bool battery_charging(void);
  26 uint16_t battery_voltage(void);
  27 battery_status_t battery_status(void);
  28
  29 #define BATTERY_VOLTAGE_LOW_LIMIT       3500
  30 #define BATTERY_VOLTAGE_LOW_RECOVERY    3700
  31 // ADC offset:16, resolution:5mV
  32 #define BATTERY_ADC_OFFSET              16
  33 #define BATTERY_ADC_RESOLUTION          5
  34
  35 #endif