/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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/* ************************************************************
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* include files
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* ************************************************************ */
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#include "mp_precomp.h"
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#include "../phydm_precomp.h"
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#if (RTL8188E_SUPPORT == 1)
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void
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odm_dig_lower_bound_88e(
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struct PHY_DM_STRUCT *p_dm_odm
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)
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{
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struct _dynamic_initial_gain_threshold_ *p_dm_dig_table = &p_dm_odm->dm_dig_table;
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if (p_dm_odm->ant_div_type == CG_TRX_HW_ANTDIV) {
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p_dm_dig_table->rx_gain_range_min = (u8) p_dm_dig_table->ant_div_rssi_max;
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("odm_dig_lower_bound_88e(): p_dm_dig_table->ant_div_rssi_max=%d\n", p_dm_dig_table->ant_div_rssi_max));
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}
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/* If only one Entry connected */
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}
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/*=============================================================
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* AntDiv Before Link
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===============================================================*/
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void
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odm_sw_ant_div_reset_before_link(
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struct PHY_DM_STRUCT *p_dm_odm
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)
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{
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struct _sw_antenna_switch_ *p_dm_swat_table = &p_dm_odm->dm_swat_table;
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p_dm_swat_table->swas_no_link_state = 0;
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}
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/* 3============================================================
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* 3 Dynamic Primary CCA
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* 3============================================================ */
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void
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odm_primary_cca_init(
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struct PHY_DM_STRUCT *p_dm_odm)
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{
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struct _dynamic_primary_cca *primary_cca = &(p_dm_odm->dm_pri_cca);
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primary_cca->dup_rts_flag = 0;
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primary_cca->intf_flag = 0;
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primary_cca->intf_type = 0;
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primary_cca->monitor_flag = 0;
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primary_cca->pri_cca_flag = 0;
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}
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bool
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odm_dynamic_primary_cca_dup_rts(
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struct PHY_DM_STRUCT *p_dm_odm
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)
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{
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struct _dynamic_primary_cca *primary_cca = &(p_dm_odm->dm_pri_cca);
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return primary_cca->dup_rts_flag;
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}
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void
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odm_dynamic_primary_cca(
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struct PHY_DM_STRUCT *p_dm_odm
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)
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{
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#if (DM_ODM_SUPPORT_TYPE != ODM_CE)
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struct _ADAPTER *adapter = p_dm_odm->adapter; /* for NIC */
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN))
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struct sta_info *p_entry;
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#endif
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struct _FALSE_ALARM_STATISTICS *false_alm_cnt = (struct _FALSE_ALARM_STATISTICS *)phydm_get_structure(p_dm_odm, PHYDM_FALSEALMCNT);
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struct _dynamic_primary_cca *primary_cca = &(p_dm_odm->dm_pri_cca);
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bool is_40mhz;
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bool client_40mhz = false, client_tmp = false; /* connected client BW */
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bool is_connected = false; /* connected or not */
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static u8 client_40mhz_pre = 0;
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static u64 last_tx_ok_cnt = 0;
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static u64 last_rx_ok_cnt = 0;
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static u32 counter = 0;
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static u8 delay = 1;
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u64 cur_tx_ok_cnt;
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u64 cur_rx_ok_cnt;
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u8 sec_ch_offset;
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u8 i;
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if (!(p_dm_odm->support_ability & ODM_BB_PRIMARY_CCA))
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return;
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if (p_dm_odm->support_ic_type != ODM_RTL8188E)
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return;
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is_40mhz = *(p_dm_odm->p_band_width);
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sec_ch_offset = *(p_dm_odm->p_sec_ch_offset);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Second CH Offset = %d\n", sec_ch_offset));
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#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
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if (is_40mhz == 1)
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sec_ch_offset = sec_ch_offset % 2 + 1; /* NIC's definition is reverse to AP 1:secondary below, 2: secondary above */
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Second CH Offset = %d\n", sec_ch_offset));
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/* 3 Check Current WLAN Traffic */
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cur_tx_ok_cnt = adapter->TxStats.NumTxBytesUnicast - last_tx_ok_cnt;
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cur_rx_ok_cnt = adapter->RxStats.NumRxBytesUnicast - last_rx_ok_cnt;
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last_tx_ok_cnt = adapter->TxStats.NumTxBytesUnicast;
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last_rx_ok_cnt = adapter->RxStats.NumRxBytesUnicast;
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#elif (DM_ODM_SUPPORT_TYPE == ODM_AP)
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/* 3 Check Current WLAN Traffic */
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cur_tx_ok_cnt = *(p_dm_odm->p_num_tx_bytes_unicast) - last_tx_ok_cnt;
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cur_rx_ok_cnt = *(p_dm_odm->p_num_rx_bytes_unicast) - last_rx_ok_cnt;
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last_tx_ok_cnt = *(p_dm_odm->p_num_tx_bytes_unicast);
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last_rx_ok_cnt = *(p_dm_odm->p_num_rx_bytes_unicast);
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#endif
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/* ==================Debug Message==================== */
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("TP = %llu\n", cur_tx_ok_cnt + cur_rx_ok_cnt));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("is_40mhz = %d\n", is_40mhz));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("BW_LSC = %d\n", false_alm_cnt->cnt_bw_lsc));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("BW_USC = %d\n", false_alm_cnt->cnt_bw_usc));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("CCA OFDM = %d\n", false_alm_cnt->cnt_ofdm_cca));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("CCA CCK = %d\n", false_alm_cnt->cnt_cck_cca));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("OFDM FA = %d\n", false_alm_cnt->cnt_ofdm_fail));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("CCK FA = %d\n", false_alm_cnt->cnt_cck_fail));
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/* ================================================ */
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#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
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if (ACTING_AS_AP(adapter)) /* primary cca process only do at AP mode */
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#endif
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{
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#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("ACTING as AP mode=%d\n", ACTING_AS_AP(adapter)));
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/* 3 To get entry's connection and BW infomation status. */
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for (i = 0; i < ASSOCIATE_ENTRY_NUM; i++) {
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if (IsAPModeExist(adapter) && GetFirstExtAdapter(adapter) != NULL)
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p_entry = AsocEntry_EnumStation(GetFirstExtAdapter(adapter), i);
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else
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p_entry = AsocEntry_EnumStation(GetDefaultAdapter(adapter), i);
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if (p_entry != NULL) {
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client_tmp = p_entry->BandWidth; /* client BW */
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Client_BW=%d\n", client_tmp));
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if (client_tmp > client_40mhz)
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client_40mhz = client_tmp; /* 40M/20M coexist => 40M priority is High */
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if (p_entry->bAssociated) {
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is_connected = true; /* client is connected or not */
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break;
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}
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} else
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break;
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}
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#elif (DM_ODM_SUPPORT_TYPE == ODM_AP)
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/* 3 To get entry's connection and BW infomation status. */
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struct sta_info *pstat;
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for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
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pstat = p_dm_odm->p_odm_sta_info[i];
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if (IS_STA_VALID(pstat)) {
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client_tmp = pstat->tx_bw;
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if (client_tmp > client_40mhz)
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client_40mhz = client_tmp; /* 40M/20M coexist => 40M priority is High */
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is_connected = true;
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}
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}
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#endif
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("is_connected=%d\n", is_connected));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Is Client 40MHz=%d\n", client_40mhz));
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/* 1 Monitor whether the interference exists or not */
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if (primary_cca->monitor_flag == 1) {
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if (sec_ch_offset == 1) { /* secondary channel is below the primary channel */
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if ((false_alm_cnt->cnt_ofdm_cca > 500) && (false_alm_cnt->cnt_bw_lsc > false_alm_cnt->cnt_bw_usc + 500)) {
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1) {
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primary_cca->intf_type = 1;
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primary_cca->pri_cca_flag = 1;
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT7, 2); /* USC MF */
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if (primary_cca->dup_rts_flag == 1)
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primary_cca->dup_rts_flag = 0;
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} else {
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primary_cca->intf_type = 2;
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if (primary_cca->dup_rts_flag == 0)
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primary_cca->dup_rts_flag = 1;
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}
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} else { /* interferecne disappear */
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primary_cca->dup_rts_flag = 0;
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primary_cca->intf_flag = 0;
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primary_cca->intf_type = 0;
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}
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} else if (sec_ch_offset == 2) { /* secondary channel is above the primary channel */
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if ((false_alm_cnt->cnt_ofdm_cca > 500) && (false_alm_cnt->cnt_bw_usc > false_alm_cnt->cnt_bw_lsc + 500)) {
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1) {
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primary_cca->intf_type = 1;
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primary_cca->pri_cca_flag = 1;
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT7, 1); /* LSC MF */
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if (primary_cca->dup_rts_flag == 1)
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primary_cca->dup_rts_flag = 0;
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} else {
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primary_cca->intf_type = 2;
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if (primary_cca->dup_rts_flag == 0)
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primary_cca->dup_rts_flag = 1;
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}
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} else { /* interferecne disappear */
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primary_cca->dup_rts_flag = 0;
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primary_cca->intf_flag = 0;
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primary_cca->intf_type = 0;
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}
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}
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primary_cca->monitor_flag = 0;
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}
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/* 1 Dynamic Primary CCA Main Function */
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if (primary_cca->monitor_flag == 0) {
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if (is_40mhz) { /* if RFBW==40M mode which require to process primary cca */
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/* 2 STA is NOT Connected */
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if (!is_connected) {
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("STA NOT Connected!!!!\n"));
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if (primary_cca->pri_cca_flag == 1) { /* reset primary cca when STA is disconnected */
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primary_cca->pri_cca_flag = 0;
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 0);
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}
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if (primary_cca->dup_rts_flag == 1) /* reset Duplicate RTS when STA is disconnected */
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primary_cca->dup_rts_flag = 0;
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if (sec_ch_offset == 1) { /* secondary channel is below the primary channel */
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if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_lsc * 5 > false_alm_cnt->cnt_bw_usc * 9)) {
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primary_cca->intf_flag = 1; /* secondary channel interference is detected!!! */
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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} else {
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primary_cca->intf_flag = 0;
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primary_cca->intf_type = 0;
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}
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} else if (sec_ch_offset == 2) { /* secondary channel is above the primary channel */
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if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_usc * 5 > false_alm_cnt->cnt_bw_lsc * 9)) {
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primary_cca->intf_flag = 1; /* secondary channel interference is detected!!! */
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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} else {
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primary_cca->intf_flag = 0;
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primary_cca->intf_type = 0;
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}
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("primary_cca=%d\n", primary_cca->pri_cca_flag));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Intf_Type=%d\n", primary_cca->intf_type));
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}
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/* 2 STA is Connected */
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else {
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if (client_40mhz == 0) /* 3 */ { /* client BW = 20MHz */
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if (primary_cca->pri_cca_flag == 0) {
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primary_cca->pri_cca_flag = 1;
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if (sec_ch_offset == 1)
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 2);
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else if (sec_ch_offset == 2)
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 1);
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("STA Connected 20M!!! primary_cca=%d\n", primary_cca->pri_cca_flag));
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} else /* 3 */ { /* client BW = 40MHz */
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if (primary_cca->intf_flag == 1) { /* interference is detected!! */
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if (primary_cca->intf_type == 1) {
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if (primary_cca->pri_cca_flag != 1) {
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primary_cca->pri_cca_flag = 1;
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if (sec_ch_offset == 1)
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 2);
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else if (sec_ch_offset == 2)
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 1);
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}
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} else if (primary_cca->intf_type == 2) {
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if (primary_cca->dup_rts_flag != 1)
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primary_cca->dup_rts_flag = 1;
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}
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} else { /* if intf_flag==0 */
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if ((cur_tx_ok_cnt + cur_rx_ok_cnt) < 10000) { /* idle mode or TP traffic is very low */
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if (sec_ch_offset == 1) {
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if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_lsc * 5 > false_alm_cnt->cnt_bw_usc * 9)) {
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primary_cca->intf_flag = 1;
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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}
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} else if (sec_ch_offset == 2) {
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if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_usc * 5 > false_alm_cnt->cnt_bw_lsc * 9)) {
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primary_cca->intf_flag = 1;
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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}
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}
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} else { /* TP Traffic is High */
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if (sec_ch_offset == 1) {
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if (false_alm_cnt->cnt_bw_lsc > (false_alm_cnt->cnt_bw_usc + 500)) {
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if (delay == 0) { /* add delay to avoid interference occurring abruptly, jump one time */
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primary_cca->intf_flag = 1;
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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delay = 1;
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} else
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delay = 0;
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}
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} else if (sec_ch_offset == 2) {
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if (false_alm_cnt->cnt_bw_usc > (false_alm_cnt->cnt_bw_lsc + 500)) {
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if (delay == 0) { /* add delay to avoid interference occurring abruptly */
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primary_cca->intf_flag = 1;
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if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
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primary_cca->intf_type = 1; /* interference is shift */
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else
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primary_cca->intf_type = 2; /* interference is in-band */
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delay = 1;
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} else
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delay = 0;
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}
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}
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}
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Primary CCA=%d\n", primary_cca->pri_cca_flag));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("Duplicate RTS=%d\n", primary_cca->dup_rts_flag));
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}
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} /* end of connected */
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}
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}
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/* 1 Dynamic Primary CCA Monitor counter */
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if ((primary_cca->pri_cca_flag == 1) || (primary_cca->dup_rts_flag == 1)) {
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if (client_40mhz == 0) { /* client=20M no need to monitor primary cca flag */
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client_40mhz_pre = client_40mhz;
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return;
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}
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counter++;
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("counter=%d\n", counter));
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if ((counter == 30) || ((client_40mhz - client_40mhz_pre) == 1)) { /* Every 60 sec to monitor one time */
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primary_cca->monitor_flag = 1; /* monitor flag is triggered!!!!! */
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if (primary_cca->pri_cca_flag == 1) {
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primary_cca->pri_cca_flag = 0;
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odm_set_bb_reg(p_dm_odm, 0xc6c, BIT(8) | BIT(7), 0);
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}
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counter = 0;
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}
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}
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}
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client_40mhz_pre = client_40mhz;
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#endif
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}
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#endif /* #if (RTL8188E_SUPPORT == 1) */
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