drivers/staging/rtl8188eu/hal/rtl8188e_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 _RTL8188E_REDESC_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <rtl8188e_hal.h>
  20
  21 static void process_rssi(struct adapter *padapter, struct recv_frame *prframe)
  22 {
  23         struct rx_pkt_attrib *pattrib = &prframe->attrib;
  24         struct signal_stat *signal_stat = &padapter->recvpriv.signal_strength_data;
  25
  26         if (signal_stat->update_req) {
  27                 signal_stat->total_num = 0;
  28                 signal_stat->total_val = 0;
  29                 signal_stat->update_req = 0;
  30         }
  31
  32         signal_stat->total_num++;
  33         signal_stat->total_val  += pattrib->phy_info.SignalStrength;
  34         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  35 } /*  Process_UI_RSSI_8192C */
  36
  37 static void process_link_qual(struct adapter *padapter,
  38                               struct recv_frame *prframe)
  39 {
  40         struct rx_pkt_attrib *pattrib;
  41         struct signal_stat *signal_stat;
  42
  43         if (!prframe || !padapter)
  44                 return;
  45
  46         pattrib = &prframe->attrib;
  47         signal_stat = &padapter->recvpriv.signal_qual_data;
  48
  49         if (signal_stat->update_req) {
  50                 signal_stat->total_num = 0;
  51                 signal_stat->total_val = 0;
  52                 signal_stat->update_req = 0;
  53         }
  54
  55         signal_stat->total_num++;
  56         signal_stat->total_val  += pattrib->phy_info.SignalQuality;
  57         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  58 }
  59
  60 void rtl8188e_process_phy_info(struct adapter *padapter,
  61                                struct recv_frame *precvframe)
  62 {
  63         /*  Check RSSI */
  64         process_rssi(padapter, precvframe);
  65         /*  Check EVM */
  66         process_link_qual(padapter,  precvframe);
  67 }
  68
  69 void update_recvframe_attrib_88e(struct recv_frame *precvframe,
  70                                  struct recv_stat *prxstat)
  71 {
  72         struct rx_pkt_attrib    *pattrib;
  73         struct recv_stat        report;
  74
  75         report.rxdw0 = prxstat->rxdw0;
  76         report.rxdw1 = prxstat->rxdw1;
  77         report.rxdw2 = prxstat->rxdw2;
  78         report.rxdw3 = prxstat->rxdw3;
  79         report.rxdw4 = prxstat->rxdw4;
  80         report.rxdw5 = prxstat->rxdw5;
  81
  82         pattrib = &precvframe->attrib;
  83         memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
  84
  85         pattrib->crc_err = (u8)((le32_to_cpu(report.rxdw0) >> 14) & 0x1);/* u8)prxreport->crc32; */
  86
  87         /*  update rx report to recv_frame attribute */
  88         pattrib->pkt_rpt_type = (u8)((le32_to_cpu(report.rxdw3) >> 14) & 0x3);/* prxreport->rpt_sel; */
  89
  90         if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
  91                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x00003fff);/* u16)prxreport->pktlen; */
  92                 pattrib->drvinfo_sz = (u8)((le32_to_cpu(report.rxdw0) >> 16) & 0xf) * 8;/* u8)(prxreport->drvinfosize << 3); */
  93
  94                 pattrib->physt =  (u8)((le32_to_cpu(report.rxdw0) >> 26) & 0x1);/* u8)prxreport->physt; */
  95
  96                 pattrib->bdecrypted = (le32_to_cpu(report.rxdw0) & BIT(27)) ? 0 : 1;/* u8)(prxreport->swdec ? 0 : 1); */
  97                 pattrib->encrypt = (u8)((le32_to_cpu(report.rxdw0) >> 20) & 0x7);/* u8)prxreport->security; */
  98
  99                 pattrib->qos = (u8)((le32_to_cpu(report.rxdw0) >> 23) & 0x1);/* u8)prxreport->qos; */
 100                 pattrib->priority = (u8)((le32_to_cpu(report.rxdw1) >> 8) & 0xf);/* u8)prxreport->tid; */
 101
 102                 pattrib->amsdu = (u8)((le32_to_cpu(report.rxdw1) >> 13) & 0x1);/* u8)prxreport->amsdu; */
 103
 104                 pattrib->seq_num = (u16)(le32_to_cpu(report.rxdw2) & 0x00000fff);/* u16)prxreport->seq; */
 105                 pattrib->frag_num = (u8)((le32_to_cpu(report.rxdw2) >> 12) & 0xf);/* u8)prxreport->frag; */
 106                 pattrib->mfrag = (u8)((le32_to_cpu(report.rxdw1) >> 27) & 0x1);/* u8)prxreport->mf; */
 107                 pattrib->mdata = (u8)((le32_to_cpu(report.rxdw1) >> 26) & 0x1);/* u8)prxreport->md; */
 108
 109                 pattrib->mcs_rate = (u8)(le32_to_cpu(report.rxdw3) & 0x3f);/* u8)prxreport->rxmcs; */
 110                 pattrib->rxht = (u8)((le32_to_cpu(report.rxdw3) >> 6) & 0x1);/* u8)prxreport->rxht; */
 111
 112                 pattrib->icv_err = (u8)((le32_to_cpu(report.rxdw0) >> 15) & 0x1);/* u8)prxreport->icverr; */
 113                 pattrib->shift_sz = (u8)((le32_to_cpu(report.rxdw0) >> 24) & 0x3);
 114         } else if (pattrib->pkt_rpt_type == TX_REPORT1) { /* CCX */
 115                 pattrib->pkt_len = TX_RPT1_PKT_LEN;
 116                 pattrib->drvinfo_sz = 0;
 117         } else if (pattrib->pkt_rpt_type == TX_REPORT2) { /*  TX RPT */
 118                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x3FF);/* Rx length[9:0] */
 119                 pattrib->drvinfo_sz = 0;
 120
 121                 /*  */
 122                 /*  Get TX report MAC ID valid. */
 123                 /*  */
 124                 pattrib->MacIDValidEntry[0] = le32_to_cpu(report.rxdw4);
 125                 pattrib->MacIDValidEntry[1] = le32_to_cpu(report.rxdw5);
 126
 127         } else if (pattrib->pkt_rpt_type == HIS_REPORT) { /*  USB HISR RPT */
 128                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x00003fff);/* u16)prxreport->pktlen; */
 129         }
 130 }
 131
 132 /*
 133  * Notice:
 134  *      Before calling this function,
 135  *      precvframe->rx_data should be ready!
 136  */
 137 void update_recvframe_phyinfo_88e(struct recv_frame *precvframe,
 138                                   struct phy_stat *pphy_status)
 139 {
 140         struct adapter *padapter = precvframe->adapter;
 141         struct rx_pkt_attrib *pattrib = &precvframe->attrib;
 142         struct odm_phy_status_info *pPHYInfo  = (struct odm_phy_status_info *)(&pattrib->phy_info);
 143         u8 *wlanhdr;
 144         struct odm_per_pkt_info pkt_info;
 145         u8 *sa = NULL;
 146         struct sta_priv *pstapriv;
 147         struct sta_info *psta;
 148
 149         pkt_info.bPacketMatchBSSID = false;
 150         pkt_info.bPacketToSelf = false;
 151         pkt_info.bPacketBeacon = false;
 152
 153         wlanhdr = precvframe->rx_data;
 154
 155         pkt_info.bPacketMatchBSSID = ((!IsFrameTypeCtrl(wlanhdr)) &&
 156                 !pattrib->icv_err && !pattrib->crc_err &&
 157                 !memcmp(get_hdr_bssid(wlanhdr),
 158                  get_bssid(&padapter->mlmepriv), ETH_ALEN));
 159
 160         pkt_info.bPacketToSelf = pkt_info.bPacketMatchBSSID &&
 161                                  (!memcmp(get_da(wlanhdr),
 162                                   myid(&padapter->eeprompriv), ETH_ALEN));
 163
 164         pkt_info.bPacketBeacon = pkt_info.bPacketMatchBSSID &&
 165                                  (GetFrameSubType(wlanhdr) == WIFI_BEACON);
 166
 167         if (pkt_info.bPacketBeacon) {
 168                 if (check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE))
 169                         sa = padapter->mlmepriv.cur_network.network.MacAddress;
 170                 /* to do Ad-hoc */
 171         } else {
 172                 sa = get_sa(wlanhdr);
 173         }
 174
 175         pstapriv = &padapter->stapriv;
 176         pkt_info.StationID = 0xFF;
 177         psta = rtw_get_stainfo(pstapriv, sa);
 178         if (psta)
 179                 pkt_info.StationID = psta->mac_id;
 180         pkt_info.Rate = pattrib->mcs_rate;
 181
 182         ODM_PhyStatusQuery(&padapter->HalData->odmpriv, pPHYInfo,
 183                            (u8 *)pphy_status, &(pkt_info));
 184
 185         precvframe->psta = NULL;
 186         if (pkt_info.bPacketMatchBSSID &&
 187             (check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE))) {
 188                 if (psta) {
 189                         precvframe->psta = psta;
 190                         rtl8188e_process_phy_info(padapter, precvframe);
 191                 }
 192         } else if (pkt_info.bPacketToSelf || pkt_info.bPacketBeacon) {
 193                 if (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
 194                         if (psta)
 195                                 precvframe->psta = psta;
 196                 }
 197                 rtl8188e_process_phy_info(padapter, precvframe);
 198         }
 199 }