#include "power.h"
#include "app_error.h"
#include "bsp_btn_ble.h"

/**@brief Function for putting the chip into sleep mode.
 *
 * @note This function will not return.
 */
void sleep_mode_enter(void) {
  uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
  APP_ERROR_CHECK(err_code);

  // Prepare wakeup buttons.
  err_code = bsp_btn_ble_sleep_mode_prepare();
  APP_ERROR_CHECK(err_code);

  // Go to system-off mode (this function will not return; wakeup will cause a
  // reset).
  err_code = sd_power_system_off();
  APP_ERROR_CHECK(err_code);
}