kernel/drivers/staging/rtl8723au/hal/rtl8723a_rxdesc.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  ******************************************************************************/
  15 #define _RTL8723A_REDESC_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <rtl8723a_hal.h>
  20
  21 static void process_rssi(struct rtw_adapter *padapter,
  22                          struct recv_frame *prframe)
  23 {
  24         struct rx_pkt_attrib *pattrib = &prframe->attrib;
  25         struct signal_stat *signal_stat = &padapter->recvpriv.signal_strength_data;
  26
  27         if (signal_stat->update_req) {
  28                 signal_stat->total_num = 0;
  29                 signal_stat->total_val = 0;
  30                 signal_stat->update_req = 0;
  31         }
  32
  33         signal_stat->total_num++;
  34         signal_stat->total_val  += pattrib->phy_info.SignalStrength;
  35         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  36 }
  37
  38 static void process_link_qual(struct rtw_adapter *padapter,
  39                               struct recv_frame *prframe)
  40 {
  41         struct rx_pkt_attrib *pattrib;
  42         struct signal_stat *signal_stat;
  43
  44         if (prframe == NULL || padapter == NULL)
  45                 return;
  46
  47         pattrib = &prframe->attrib;
  48         signal_stat = &padapter->recvpriv.signal_qual_data;
  49
  50         if (signal_stat->update_req) {
  51                 signal_stat->total_num = 0;
  52                 signal_stat->total_val = 0;
  53                 signal_stat->update_req = 0;
  54         }
  55
  56         signal_stat->total_num++;
  57         signal_stat->total_val  += pattrib->phy_info.SignalQuality;
  58         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  59 }
  60
  61 /* void rtl8723a_process_phy_info(struct rtw_adapter *padapter, union recv_frame *prframe) */
  62 void rtl8723a_process_phy_info(struct rtw_adapter *padapter, void *prframe)
  63 {
  64         struct recv_frame *precvframe = prframe;
  65         /*  Check RSSI */
  66         process_rssi(padapter, precvframe);
  67         /*  Check EVM */
  68         process_link_qual(padapter,  precvframe);
  69 }