How to get rssi without connection via central device

[purgoufr]

I use nrf51822 sdk130 (central device) and nrf51822 sdk110(peripheral device). I want to get rssi value of the peripheral device using the central device without connection. Is it possible to read rssi value of peripheral device without connection?

[endnode]

Sure, each scanning event (when you receive ADV_xxx packet) has RSSI value in the event data structure.

[purgoufr]

Normally process going like this;

static void button_handler(uint8_t pin_no, uint8_t button_action)
{
    if(button_action == APP_BUTTON_PUSH || button_action == BSP_BUTTON_ACTION_LONG_PUSH || BSP_BUTTON_ACTION_RELEASE)
    {
        switch(pin_no)
        {
            case BUTTON_1:
                scan_start();
                break;
          
	default:
		break;
						
	}
   }
}

THEN

static void on_ble_evt(ble_evt_t * p_ble_evt)
{
    uint32_t              err_code;
    const ble_gap_evt_t * p_gap_evt = &p_ble_evt->evt.gap_evt;	 
	
    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_ADV_REPORT:
         .
         .
 
         case BLE_GAP_EVT_CONNECTED:
         .
         .