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rtl8192eu-linux-driver/hal/rtl8192e/rtl8192e_rxdesc.c
Magnus Bergmark 1387cf623d
The official RTL8192EU linux driver from D-Link Australia 
Version information: 20140812_rtl8192EU_linux_v4.3.1.1_11320
  2014-08-12
  version 4.3.1.1_11320
Source:
  ftp://files.dlink.com.au/products/DWA-131/REV_E/Drivers/DWA-131_Linux_driver_v4.3.1.1.zip

This version does not currently work on newer kernels, but it does
contain USB ID 2001:3319, which a lot of other repos in GitHub does not.
2015-08-18 21:03:11 +02:00

320 lines
11 KiB
C
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/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
*
******************************************************************************/
#define _RTL8192E_RXDESC_C_
//#include <drv_types.h>
#include <rtl8192e_hal.h>
static s32 translate2dbm(u8 signal_strength_idx)
{
s32 signal_power; // in dBm.
// Translate to dBm (x=0.5y-95).
signal_power = (s32)((signal_strength_idx + 1) >> 1);
signal_power -= 95;
return signal_power;
}
static void process_rssi(_adapter *padapter,union recv_frame *prframe)
{
u32 last_rssi, tmp_val;
struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
struct signal_stat * signal_stat = &padapter->recvpriv.signal_strength_data;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
//DBG_8192C("process_rssi=> pattrib->rssil(%d) signal_strength(%d)\n ",pattrib->RecvSignalPower,pattrib->signal_strength);
//if(pRfd->Status.bPacketToSelf || pRfd->Status.bPacketBeacon)
{
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
if(signal_stat->update_req) {
signal_stat->total_num = 0;
signal_stat->total_val = 0;
signal_stat->update_req = 0;
}
signal_stat->total_num++;
signal_stat->total_val += pattrib->phy_info.SignalStrength;
signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
#else //CONFIG_NEW_SIGNAL_STAT_PROCESS
//Adapter->RxStats.RssiCalculateCnt++; //For antenna Test
if(padapter->recvpriv.signal_strength_data.total_num++ >= PHY_RSSI_SLID_WIN_MAX)
{
padapter->recvpriv.signal_strength_data.total_num = PHY_RSSI_SLID_WIN_MAX;
last_rssi = padapter->recvpriv.signal_strength_data.elements[padapter->recvpriv.signal_strength_data.index];
padapter->recvpriv.signal_strength_data.total_val -= last_rssi;
}
padapter->recvpriv.signal_strength_data.total_val +=pattrib->phy_info.SignalStrength;
padapter->recvpriv.signal_strength_data.elements[padapter->recvpriv.signal_strength_data.index++] = pattrib->phy_info.SignalStrength;
if(padapter->recvpriv.signal_strength_data.index >= PHY_RSSI_SLID_WIN_MAX)
padapter->recvpriv.signal_strength_data.index = 0;
tmp_val = padapter->recvpriv.signal_strength_data.total_val/padapter->recvpriv.signal_strength_data.total_num;
if(padapter->recvpriv.is_signal_dbg) {
padapter->recvpriv.signal_strength= padapter->recvpriv.signal_strength_dbg;
padapter->recvpriv.rssi=(s8)translate2dbm((u8)padapter->recvpriv.signal_strength_dbg);
} else {
padapter->recvpriv.signal_strength= tmp_val;
padapter->recvpriv.rssi=(s8)translate2dbm((u8)tmp_val);
}
RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("UI RSSI = %d, ui_rssi.TotalVal = %d, ui_rssi.TotalNum = %d\n", tmp_val, padapter->recvpriv.signal_strength_data.total_val,padapter->recvpriv.signal_strength_data.total_num));
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
}
}// Process_UI_RSSI_8192C
static void process_link_qual(_adapter *padapter,union recv_frame *prframe)
{
u32 last_evm=0, tmpVal;
struct rx_pkt_attrib *pattrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
struct signal_stat * signal_stat;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
if(prframe == NULL || padapter==NULL){
return;
}
pattrib = &prframe->u.hdr.attrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
signal_stat = &padapter->recvpriv.signal_qual_data;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
//DBG_8192C("process_link_qual=> pattrib->signal_qual(%d)\n ",pattrib->signal_qual);
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
if(signal_stat->update_req) {
signal_stat->total_num = 0;
signal_stat->total_val = 0;
signal_stat->update_req = 0;
}
signal_stat->total_num++;
signal_stat->total_val += pattrib->phy_info.SignalQuality;
signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
#else //CONFIG_NEW_SIGNAL_STAT_PROCESS
if(pattrib->phy_info.SignalQuality != 0)
{
//
// 1. Record the general EVM to the sliding window.
//
if(padapter->recvpriv.signal_qual_data.total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX)
{
padapter->recvpriv.signal_qual_data.total_num = PHY_LINKQUALITY_SLID_WIN_MAX;
last_evm = padapter->recvpriv.signal_qual_data.elements[padapter->recvpriv.signal_qual_data.index];
padapter->recvpriv.signal_qual_data.total_val -= last_evm;
}
padapter->recvpriv.signal_qual_data.total_val += pattrib->phy_info.SignalQuality;
padapter->recvpriv.signal_qual_data.elements[padapter->recvpriv.signal_qual_data.index++] = pattrib->phy_info.SignalQuality;
if(padapter->recvpriv.signal_qual_data.index >= PHY_LINKQUALITY_SLID_WIN_MAX)
padapter->recvpriv.signal_qual_data.index = 0;
RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("Total SQ=%d pattrib->signal_qual= %d\n", padapter->recvpriv.signal_qual_data.total_val, pattrib->phy_info.SignalQuality));
// <1> Showed on UI for user, in percentage.
tmpVal = padapter->recvpriv.signal_qual_data.total_val/padapter->recvpriv.signal_qual_data.total_num;
padapter->recvpriv.signal_qual=(u8)tmpVal;
}
else
{
RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" pattrib->signal_qual =%d\n", pattrib->phy_info.SignalQuality));
}
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
}
static void process_phy_info(_adapter *padapter, void *prframe)
{
union recv_frame *precvframe = (union recv_frame *)prframe;
//
// Check RSSI
//
process_rssi(padapter, precvframe);
//
// Check PWDB.
//
//process_PWDB(padapter, precvframe);
//UpdateRxSignalStatistics8192C(Adapter, pRfd);
//
// Check EVM
//
process_link_qual(padapter, precvframe);
#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
rtw_store_phy_info( padapter,prframe);
#endif
}
void rtl8192e_query_rx_desc_status(union recv_frame *precvframe, u8 *pdesc)
{
struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
_rtw_memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
//Offset 0
pattrib->pkt_len = (u16)GET_RX_STATUS_DESC_PKT_LEN_92E(pdesc);//(le32_to_cpu(pdesc->rxdw0)&0x00003fff)
pattrib->crc_err = (u8)GET_RX_STATUS_DESC_CRC32_92E(pdesc);//((le32_to_cpu(pdesc->rxdw0) >> 14) & 0x1);
pattrib->icv_err = (u8)GET_RX_STATUS_DESC_ICVERR_92E(pdesc);//((le32_to_cpu(pdesc->rxdw0) >> 15) & 0x1);
pattrib->drvinfo_sz = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE_92E(pdesc) * 8;//((le32_to_cpu(pdesc->rxdw0) >> 16) & 0xf) * 8;//uint 2^3 = 8 bytes
pattrib->encrypt = (u8)GET_RX_STATUS_DESC_SECURITY_92E(pdesc);//((le32_to_cpu(pdesc->rxdw0) >> 20) & 0x7);
pattrib->qos = (u8)GET_RX_STATUS_DESC_QOS_92E(pdesc);//(( le32_to_cpu( pdesc->rxdw0 ) >> 23) & 0x1);// Qos data, wireless lan header length is 26
pattrib->shift_sz = (u8)GET_RX_STATUS_DESC_SHIFT_92E(pdesc);//((le32_to_cpu(pdesc->rxdw0) >> 24) & 0x3);
pattrib->physt = (u8)GET_RX_STATUS_DESC_PHY_STATUS_92E(pdesc);//((le32_to_cpu(pdesc->rxdw0) >> 26) & 0x1);
pattrib->bdecrypted = !GET_RX_STATUS_DESC_SWDEC_92E(pdesc);//(le32_to_cpu(pdesc->rxdw0) & BIT(27))? 0:1;
//Offset 4
pattrib->priority = (u8)GET_RX_STATUS_DESC_TID_92E(pdesc);//((le32_to_cpu(pdesc->rxdw1) >> 8) & 0xf);
pattrib->mdata = (u8)GET_RX_STATUS_DESC_MORE_DATA_92E(pdesc);//((le32_to_cpu(pdesc->rxdw1) >> 26) & 0x1);
pattrib->mfrag = (u8)GET_RX_STATUS_DESC_MORE_FRAG_92E(pdesc);//((le32_to_cpu(pdesc->rxdw1) >> 27) & 0x1);//more fragment bit
//Offset 8
pattrib->seq_num = (u16)GET_RX_STATUS_DESC_SEQ_92E(pdesc);//(le32_to_cpu(pdesc->rxdw2) & 0x00000fff);
pattrib->frag_num = (u8)GET_RX_STATUS_DESC_FRAG_92E(pdesc);//((le32_to_cpu(pdesc->rxdw2) >> 12) & 0xf);//fragmentation number
if (GET_RX_STATUS_DESC_RPT_SEL_92E(pdesc))
pattrib->pkt_rpt_type = C2H_PACKET;
else
pattrib->pkt_rpt_type = NORMAL_RX;
//Offset 12
pattrib->data_rate=(u8)GET_RX_STATUS_DESC_RX_RATE_92E(pdesc);//((le32_to_cpu(pdesc->rxdw3))&0x7f);
//Offset 16
//Offset 20
}
/*
* Notice:
* Before calling this function,
* precvframe->u.hdr.rx_data should be ready!
*/
void rtl8192e_query_rx_phy_status(
union recv_frame *precvframe,
u8 *pphy_status)
{
PADAPTER padapter = precvframe->u.hdr.adapter;
struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
PODM_PHY_INFO_T pPHYInfo = (PODM_PHY_INFO_T)(&pattrib->phy_info);
u8 *wlanhdr;
ODM_PACKET_INFO_T pkt_info;
u8 *sa;
struct sta_priv *pstapriv;
struct sta_info *psta;
//_irqL irqL;
pkt_info.bPacketMatchBSSID =_FALSE;
pkt_info.bPacketToSelf = _FALSE;
pkt_info.bPacketBeacon = _FALSE;
wlanhdr = get_recvframe_data(precvframe);
pkt_info.bPacketMatchBSSID = ((!IsFrameTypeCtrl(wlanhdr)) &&
!pattrib->icv_err && !pattrib->crc_err &&
_rtw_memcmp(get_hdr_bssid(wlanhdr), get_bssid(&padapter->mlmepriv), ETH_ALEN));
pkt_info.bPacketToSelf = pkt_info.bPacketMatchBSSID && (_rtw_memcmp(get_ra(wlanhdr), myid(&padapter->eeprompriv), ETH_ALEN));
pkt_info.bPacketBeacon = pkt_info.bPacketMatchBSSID && (GetFrameSubType(wlanhdr) == WIFI_BEACON);
/*
if(pkt_info.bPacketBeacon){
if(check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE) == _TRUE){
sa = padapter->mlmepriv.cur_network.network.MacAddress;
#if 0
{
DBG_8192C("==> rx beacon from AP[%02x:%02x:%02x:%02x:%02x:%02x]\n",
sa[0],sa[1],sa[2],sa[3],sa[4],sa[5]);
}
#endif
}
else
{
//to do Ad-hoc
sa = NULL;
}
}
else{
sa = get_sa(wlanhdr);
}
*/
sa = get_ta(wlanhdr);
pstapriv = &padapter->stapriv;
pkt_info.StationID = 0xFF;
psta = rtw_get_stainfo(pstapriv, sa);
if (psta)
{
pkt_info.StationID = psta->mac_id;
//DBG_8192C("%s ==> StationID(%d)\n",__FUNCTION__,pkt_info.StationID);
}
pkt_info.DataRate = pattrib->data_rate;
//rtl8192e_query_rx_phy_status(precvframe, pphy_status);
//_enter_critical_bh(&pHalData->odm_stainfo_lock, &irqL);
ODM_PhyStatusQuery(&pHalData->odmpriv,pPHYInfo,pphy_status,&(pkt_info));
//_exit_critical_bh(&pHalData->odm_stainfo_lock, &irqL);
precvframe->u.hdr.psta = NULL;
if (pkt_info.bPacketMatchBSSID &&
(check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == _TRUE))
{
if (psta)
{
precvframe->u.hdr.psta = psta;
process_phy_info(padapter, precvframe);
}
}
else if (pkt_info.bPacketToSelf || pkt_info.bPacketBeacon)
{
if (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) == _TRUE)
{
if (psta)
{
precvframe->u.hdr.psta = psta;
}
}
process_phy_info(padapter, precvframe);
}
}
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