kernel/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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _RTL8188E_REDESC_C_
  21
  22 #include <osdep_service.h>
  23 #include <drv_types.h>
  24 #include <rtl8188e_hal.h>
  25
  26 static void process_rssi(struct adapter *padapter, struct recv_frame *prframe)
  27 {
  28         struct rx_pkt_attrib *pattrib = &prframe->attrib;
  29         struct signal_stat *signal_stat = &padapter->recvpriv.signal_strength_data;
  30
  31         if (signal_stat->update_req) {
  32                 signal_stat->total_num = 0;
  33                 signal_stat->total_val = 0;
  34                 signal_stat->update_req = 0;
  35         }
  36
  37         signal_stat->total_num++;
  38         signal_stat->total_val  += pattrib->phy_info.SignalStrength;
  39         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  40 } /*  Process_UI_RSSI_8192C */
  41
  42 static void process_link_qual(struct adapter *padapter,
  43                               struct recv_frame *prframe)
  44 {
  45         struct rx_pkt_attrib *pattrib;
  46         struct signal_stat *signal_stat;
  47
  48         if (prframe == NULL || padapter == NULL)
  49                 return;
  50
  51         pattrib = &prframe->attrib;
  52         signal_stat = &padapter->recvpriv.signal_qual_data;
  53
  54         if (signal_stat->update_req) {
  55                 signal_stat->total_num = 0;
  56                 signal_stat->total_val = 0;
  57                 signal_stat->update_req = 0;
  58         }
  59
  60         signal_stat->total_num++;
  61         signal_stat->total_val  += pattrib->phy_info.SignalQuality;
  62         signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
  63 }
  64
  65 void rtl8188e_process_phy_info(struct adapter *padapter, void *prframe)
  66 {
  67         struct recv_frame *precvframe = (struct recv_frame *)prframe;
  68
  69         /*  Check RSSI */
  70         process_rssi(padapter, precvframe);
  71         /*  Check EVM */
  72         process_link_qual(padapter,  precvframe);
  73 }
  74
  75 void update_recvframe_attrib_88e(struct recv_frame *precvframe,
  76                                  struct recv_stat *prxstat)
  77 {
  78         struct rx_pkt_attrib    *pattrib;
  79         struct recv_stat        report;
  80
  81         report.rxdw0 = prxstat->rxdw0;
  82         report.rxdw1 = prxstat->rxdw1;
  83         report.rxdw2 = prxstat->rxdw2;
  84         report.rxdw3 = prxstat->rxdw3;
  85         report.rxdw4 = prxstat->rxdw4;
  86         report.rxdw5 = prxstat->rxdw5;
  87
  88         pattrib = &precvframe->attrib;
  89         memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
  90
  91         pattrib->crc_err = (u8)((le32_to_cpu(report.rxdw0) >> 14) & 0x1);/* u8)prxreport->crc32; */
  92
  93         /*  update rx report to recv_frame attribute */
  94         pattrib->pkt_rpt_type = (u8)((le32_to_cpu(report.rxdw3) >> 14) & 0x3);/* prxreport->rpt_sel; */
  95
  96         if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
  97                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x00003fff);/* u16)prxreport->pktlen; */
  98                 pattrib->drvinfo_sz = (u8)((le32_to_cpu(report.rxdw0) >> 16) & 0xf) * 8;/* u8)(prxreport->drvinfosize << 3); */
  99
 100                 pattrib->physt =  (u8)((le32_to_cpu(report.rxdw0) >> 26) & 0x1);/* u8)prxreport->physt; */
 101
 102                 pattrib->bdecrypted = (le32_to_cpu(report.rxdw0) & BIT(27)) ? 0 : 1;/* u8)(prxreport->swdec ? 0 : 1); */
 103                 pattrib->encrypt = (u8)((le32_to_cpu(report.rxdw0) >> 20) & 0x7);/* u8)prxreport->security; */
 104
 105                 pattrib->qos = (u8)((le32_to_cpu(report.rxdw0) >> 23) & 0x1);/* u8)prxreport->qos; */
 106                 pattrib->priority = (u8)((le32_to_cpu(report.rxdw1) >> 8) & 0xf);/* u8)prxreport->tid; */
 107
 108                 pattrib->amsdu = (u8)((le32_to_cpu(report.rxdw1) >> 13) & 0x1);/* u8)prxreport->amsdu; */
 109
 110                 pattrib->seq_num = (u16)(le32_to_cpu(report.rxdw2) & 0x00000fff);/* u16)prxreport->seq; */
 111                 pattrib->frag_num = (u8)((le32_to_cpu(report.rxdw2) >> 12) & 0xf);/* u8)prxreport->frag; */
 112                 pattrib->mfrag = (u8)((le32_to_cpu(report.rxdw1) >> 27) & 0x1);/* u8)prxreport->mf; */
 113                 pattrib->mdata = (u8)((le32_to_cpu(report.rxdw1) >> 26) & 0x1);/* u8)prxreport->md; */
 114
 115                 pattrib->mcs_rate = (u8)(le32_to_cpu(report.rxdw3) & 0x3f);/* u8)prxreport->rxmcs; */
 116                 pattrib->rxht = (u8)((le32_to_cpu(report.rxdw3) >> 6) & 0x1);/* u8)prxreport->rxht; */
 117
 118                 pattrib->icv_err = (u8)((le32_to_cpu(report.rxdw0) >> 15) & 0x1);/* u8)prxreport->icverr; */
 119                 pattrib->shift_sz = (u8)((le32_to_cpu(report.rxdw0) >> 24) & 0x3);
 120         } else if (pattrib->pkt_rpt_type == TX_REPORT1) { /* CCX */
 121                 pattrib->pkt_len = TX_RPT1_PKT_LEN;
 122                 pattrib->drvinfo_sz = 0;
 123         } else if (pattrib->pkt_rpt_type == TX_REPORT2) { /*  TX RPT */
 124                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x3FF);/* Rx length[9:0] */
 125                 pattrib->drvinfo_sz = 0;
 126
 127                 /*  */
 128                 /*  Get TX report MAC ID valid. */
 129                 /*  */
 130                 pattrib->MacIDValidEntry[0] = le32_to_cpu(report.rxdw4);
 131                 pattrib->MacIDValidEntry[1] = le32_to_cpu(report.rxdw5);
 132
 133         } else if (pattrib->pkt_rpt_type == HIS_REPORT) { /*  USB HISR RPT */
 134                 pattrib->pkt_len = (u16)(le32_to_cpu(report.rxdw0) & 0x00003fff);/* u16)prxreport->pktlen; */
 135         }
 136 }
 137
 138 /*
 139  * Notice:
 140  *      Before calling this function,
 141  *      precvframe->rx_data should be ready!
 142  */
 143 void update_recvframe_phyinfo_88e(struct recv_frame *precvframe,
 144                                   struct phy_stat *pphy_status)
 145 {
 146         struct adapter *padapter = precvframe->adapter;
 147         struct rx_pkt_attrib *pattrib = &precvframe->attrib;
 148         struct hal_data_8188e *pHalData = GET_HAL_DATA(padapter);
 149         struct odm_phy_status_info *pPHYInfo  = (struct odm_phy_status_info *)(&pattrib->phy_info);
 150         u8 *wlanhdr;
 151         struct odm_per_pkt_info pkt_info;
 152         u8 *sa = NULL;
 153         struct sta_priv *pstapriv;
 154         struct sta_info *psta;
 155
 156         pkt_info.bPacketMatchBSSID = false;
 157         pkt_info.bPacketToSelf = false;
 158         pkt_info.bPacketBeacon = false;
 159
 160         wlanhdr = precvframe->rx_data;
 161
 162         pkt_info.bPacketMatchBSSID = ((!IsFrameTypeCtrl(wlanhdr)) &&
 163                 !pattrib->icv_err && !pattrib->crc_err &&
 164                 !memcmp(get_hdr_bssid(wlanhdr),
 165                  get_bssid(&padapter->mlmepriv), ETH_ALEN));
 166
 167         pkt_info.bPacketToSelf = pkt_info.bPacketMatchBSSID &&
 168                                  (!memcmp(get_da(wlanhdr),
 169                                   myid(&padapter->eeprompriv), ETH_ALEN));
 170
 171         pkt_info.bPacketBeacon = pkt_info.bPacketMatchBSSID &&
 172                                  (GetFrameSubType(wlanhdr) == WIFI_BEACON);
 173
 174         if (pkt_info.bPacketBeacon) {
 175                 if (check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE))
 176                         sa = padapter->mlmepriv.cur_network.network.MacAddress;
 177                 /* to do Ad-hoc */
 178         } else {
 179                 sa = get_sa(wlanhdr);
 180         }
 181
 182         pstapriv = &padapter->stapriv;
 183         pkt_info.StationID = 0xFF;
 184         psta = rtw_get_stainfo(pstapriv, sa);
 185         if (psta)
 186                 pkt_info.StationID = psta->mac_id;
 187         pkt_info.Rate = pattrib->mcs_rate;
 188
 189         ODM_PhyStatusQuery(&pHalData->odmpriv, pPHYInfo, (u8 *)pphy_status, &(pkt_info));
 190
 191         precvframe->psta = NULL;
 192         if (pkt_info.bPacketMatchBSSID &&
 193             (check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE))) {
 194                 if (psta) {
 195                         precvframe->psta = psta;
 196                         rtl8188e_process_phy_info(padapter, precvframe);
 197                 }
 198         } else if (pkt_info.bPacketToSelf || pkt_info.bPacketBeacon) {
 199                 if (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
 200                         if (psta)
 201                                 precvframe->psta = psta;
 202                 }
 203                 rtl8188e_process_phy_info(padapter, precvframe);
 204         }
 205 }