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realtek-rtl8188eus-dkms/hal/phydm/phydm_primary_cca.c

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New upstream version 5.3.9~20191129
2019-12-17 16:14:15 +00:00
/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* 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.
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
* Hsinchu 300, Taiwan.
*
* Larry Finger <Larry.Finger@lwfinger.net>
*
*****************************************************************************/
/* ************************************************************
* include files
* ************************************************************ */
#include "mp_precomp.h"
#include "phydm_precomp.h"
#ifdef PHYDM_PRIMARY_CCA
void
phydm_write_dynamic_cca(
void *dm_void,
u8 curr_mf_state
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &dm->dm_pri_cca;
if (primary_cca->mf_state == curr_mf_state)
return;
if (dm->support_ic_type & ODM_IC_11N_SERIES) {
if (curr_mf_state == MF_USC_LSC) {
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), MF_USC_LSC);
odm_set_bb_reg(dm, 0xc84, 0xf0000000, primary_cca->cca_th_40m_bkp); /*40M OFDM MF CCA threshold*/
} else {
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), curr_mf_state);
odm_set_bb_reg(dm, 0xc84, 0xf0000000, 0); /*40M OFDM MF CCA threshold*/
}
}
primary_cca->mf_state = curr_mf_state;
PHYDM_DBG(dm, DBG_PRI_CCA,
"Set CCA at ((%s SB)), 0xc6c[8:7]=((%d))\n", ((curr_mf_state == MF_USC_LSC)?"D":((curr_mf_state == MF_LSC)?"L":"U")), curr_mf_state);
}
void
phydm_primary_cca_reset(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &dm->dm_pri_cca;
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA] Reset\n");
primary_cca->mf_state = 0xff;
primary_cca->pre_bw = (enum channel_width)0xff;
phydm_write_dynamic_cca(dm, MF_USC_LSC);
}
void
phydm_primary_cca_11n(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &dm->dm_pri_cca;
enum channel_width curr_bw = (enum channel_width)*dm->band_width;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
if (!dm->is_linked) { /* is_linked==False */
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA][No Link!!!]\n");
if (primary_cca->pri_cca_is_become_linked == true) {
phydm_primary_cca_reset(dm);
primary_cca->pri_cca_is_become_linked = dm->is_linked;
}
return;
} else {
if (primary_cca->pri_cca_is_become_linked == false) {
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA][Linked !!!]\n");
primary_cca->pri_cca_is_become_linked = dm->is_linked;
}
}
if (curr_bw != primary_cca->pre_bw) {
PHYDM_DBG(dm, DBG_PRI_CCA, "[Primary CCA] start ==>\n");
primary_cca->pre_bw = curr_bw;
if (curr_bw == CHANNEL_WIDTH_40) {
if (*dm->sec_ch_offset == SECOND_CH_AT_LSB) {/* Primary CH @ upper sideband*/
PHYDM_DBG(dm, DBG_PRI_CCA, "BW40M, Primary CH at USB\n");
phydm_write_dynamic_cca(dm, MF_USC);
} else { /*Primary CH @ lower sideband*/
PHYDM_DBG(dm, DBG_PRI_CCA, "BW40M, Primary CH at LSB\n");
phydm_write_dynamic_cca(dm, MF_LSC);
}
} else {
PHYDM_DBG(dm, DBG_PRI_CCA, "Not BW40M, USB + LSB\n");
phydm_primary_cca_reset(dm);
}
}
}
#if 0
#if (RTL8188E_SUPPORT == 1)
void
odm_dynamic_primary_cca_8188e(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct sta_info *entry;
struct cmn_sta_info *sta;
struct phydm_fa_struct *false_alm_cnt = (struct phydm_fa_struct *)phydm_get_structure(dm, PHYDM_FALSEALMCNT);
struct phydm_pricca_struct *primary_cca = &(dm->dm_pri_cca);
boolean client_40mhz = false, client_tmp = false; /* connected client BW */
boolean is_connected = false; /* connected or not */
u8 client_40mhz_pre = 0;
u32 counter = 0;
u8 delay = 1;
u64 cur_tx_ok_cnt;
u64 cur_rx_ok_cnt;
u8 sec_ch_offset = *(dm->sec_ch_offset);
u8 i;
if (!dm->is_linked)
return;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
if (*(dm->band_width) == CHANNEL_WIDTH_20) { /*curr bw*/
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 0);
return;
}
#if (DM_ODM_SUPPORT_TYPE == ODM_WIN) || (DM_ODM_SUPPORT_TYPE == ODM_CE)
sec_ch_offset = sec_ch_offset % 2 + 1; /* NIC's definition is reverse to AP 1:secondary below, 2: secondary above */
#endif
PHYDM_DBG(dm, DBG_PRI_CCA, "Second CH Offset = %d\n", sec_ch_offset);
/* 3 Check Current WLAN Traffic */
cur_tx_ok_cnt = dm->tx_tp;
cur_rx_ok_cnt = dm->rx_tp;
/* ==================Debug Message==================== */
PHYDM_DBG(dm, DBG_PRI_CCA, "TP = %llu\n", cur_tx_ok_cnt + cur_rx_ok_cnt);
PHYDM_DBG(dm, DBG_PRI_CCA, "is_BW40 = %d\n", *(dm->band_width));
PHYDM_DBG(dm, DBG_PRI_CCA, "BW_LSC = %d\n", false_alm_cnt->cnt_bw_lsc);
PHYDM_DBG(dm, DBG_PRI_CCA, "BW_USC = %d\n", false_alm_cnt->cnt_bw_usc);
PHYDM_DBG(dm, DBG_PRI_CCA, "CCA OFDM = %d\n", false_alm_cnt->cnt_ofdm_cca);
PHYDM_DBG(dm, DBG_PRI_CCA, "CCA CCK = %d\n", false_alm_cnt->cnt_cck_cca);
PHYDM_DBG(dm, DBG_PRI_CCA, "OFDM FA = %d\n", false_alm_cnt->cnt_ofdm_fail);
PHYDM_DBG(dm, DBG_PRI_CCA, "CCK FA = %d\n", false_alm_cnt->cnt_cck_fail);
/* ================================================ */
#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
if (ACTING_AS_AP(dm->adapter)) /* primary cca process only do at AP mode */
#endif
{
#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
PHYDM_DBG(dm, DBG_PRI_CCA, "ACTING as AP mode=%d\n", ACTING_AS_AP(dm->adapter));
/* 3 To get entry's connection and BW infomation status. */
for (i = 0; i < ASSOCIATE_ENTRY_NUM; i++) {
if (IsAPModeExist(dm->adapter) && GetFirstExtAdapter(dm->adapter) != NULL)
entry = AsocEntry_EnumStation(GetFirstExtAdapter(dm->adapter), i);
else
entry = AsocEntry_EnumStation(GetDefaultAdapter(dm->adapter), i);
if (entry != NULL) {
client_tmp = entry->BandWidth; /* client BW */
PHYDM_DBG(dm, DBG_PRI_CCA, "Client_BW=%d\n", client_tmp);
if (client_tmp > client_40mhz)
client_40mhz = client_tmp; /* 40M/20M coexist => 40M priority is High */
if (entry->bAssociated) {
is_connected = true; /* client is connected or not */
break;
}
} else
break;
}
#elif (DM_ODM_SUPPORT_TYPE == ODM_AP)
/* 3 To get entry's connection and BW infomation status. */
for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
sta = dm->phydm_sta_info[i];
if (is_sta_active(sta)) {
client_tmp = sta->bw_mode;
if (client_tmp > client_40mhz)
client_40mhz = client_tmp; /* 40M/20M coexist => 40M priority is High */
is_connected = true;
}
}
#endif
PHYDM_DBG(dm, DBG_PRI_CCA, "is_connected=%d\n", is_connected);
PHYDM_DBG(dm, DBG_PRI_CCA, "Is Client 40MHz=%d\n", client_40mhz);
/* 1 Monitor whether the interference exists or not */
if (primary_cca->monitor_flag == 1) {
if (sec_ch_offset == 1) { /* secondary channel is below the primary channel */
if ((false_alm_cnt->cnt_ofdm_cca > 500) && (false_alm_cnt->cnt_bw_lsc > false_alm_cnt->cnt_bw_usc + 500)) {
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1) {
primary_cca->intf_type = 1;
primary_cca->pri_cca_flag = 1;
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT7, 2); /* USC MF */
if (primary_cca->dup_rts_flag == 1)
primary_cca->dup_rts_flag = 0;
} else {
primary_cca->intf_type = 2;
if (primary_cca->dup_rts_flag == 0)
primary_cca->dup_rts_flag = 1;
}
} else { /* interferecne disappear */
primary_cca->dup_rts_flag = 0;
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
}
} else if (sec_ch_offset == 2) { /* secondary channel is above the primary channel */
if ((false_alm_cnt->cnt_ofdm_cca > 500) && (false_alm_cnt->cnt_bw_usc > false_alm_cnt->cnt_bw_lsc + 500)) {
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1) {
primary_cca->intf_type = 1;
primary_cca->pri_cca_flag = 1;
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT7, 1); /* LSC MF */
if (primary_cca->dup_rts_flag == 1)
primary_cca->dup_rts_flag = 0;
} else {
primary_cca->intf_type = 2;
if (primary_cca->dup_rts_flag == 0)
primary_cca->dup_rts_flag = 1;
}
} else { /* interferecne disappear */
primary_cca->dup_rts_flag = 0;
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
}
}
primary_cca->monitor_flag = 0;
}
/* 1 Dynamic Primary CCA Main Function */
if (primary_cca->monitor_flag == 0) {
if (*(dm->band_width) == CHANNEL_WIDTH_40) { /* if RFBW==40M mode which require to process primary cca */
/* 2 STA is NOT Connected */
if (!is_connected) {
PHYDM_DBG(dm, DBG_PRI_CCA, "STA NOT Connected!!!!\n");
if (primary_cca->pri_cca_flag == 1) { /* reset primary cca when STA is disconnected */
primary_cca->pri_cca_flag = 0;
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 0);
}
if (primary_cca->dup_rts_flag == 1) /* reset Duplicate RTS when STA is disconnected */
primary_cca->dup_rts_flag = 0;
if (sec_ch_offset == 1) { /* secondary channel is below the primary channel */
if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_lsc * 5 > false_alm_cnt->cnt_bw_usc * 9)) {
primary_cca->intf_flag = 1; /* secondary channel interference is detected!!! */
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
} else {
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
}
} else if (sec_ch_offset == 2) { /* secondary channel is above the primary channel */
if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_usc * 5 > false_alm_cnt->cnt_bw_lsc * 9)) {
primary_cca->intf_flag = 1; /* secondary channel interference is detected!!! */
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
} else {
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
}
}
PHYDM_DBG(dm, DBG_PRI_CCA, "primary_cca=%d\n", primary_cca->pri_cca_flag);
PHYDM_DBG(dm, DBG_PRI_CCA, "Intf_Type=%d\n", primary_cca->intf_type);
}
/* 2 STA is Connected */
else {
if (client_40mhz == 0) /* 3 */ { /* client BW = 20MHz */
if (primary_cca->pri_cca_flag == 0) {
primary_cca->pri_cca_flag = 1;
if (sec_ch_offset == 1)
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 2);
else if (sec_ch_offset == 2)
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 1);
}
PHYDM_DBG(dm, DBG_PRI_CCA, "STA Connected 20M!!! primary_cca=%d\n", primary_cca->pri_cca_flag);
} else /* 3 */ { /* client BW = 40MHz */
if (primary_cca->intf_flag == 1) { /* interference is detected!! */
if (primary_cca->intf_type == 1) {
if (primary_cca->pri_cca_flag != 1) {
primary_cca->pri_cca_flag = 1;
if (sec_ch_offset == 1)
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 2);
else if (sec_ch_offset == 2)
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 1);
}
} else if (primary_cca->intf_type == 2) {
if (primary_cca->dup_rts_flag != 1)
primary_cca->dup_rts_flag = 1;
}
} else { /* if intf_flag==0 */
if ((cur_tx_ok_cnt + cur_rx_ok_cnt) < 1) { /* idle mode or TP traffic is very low */
if (sec_ch_offset == 1) {
if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_lsc * 5 > false_alm_cnt->cnt_bw_usc * 9)) {
primary_cca->intf_flag = 1;
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
}
} else if (sec_ch_offset == 2) {
if ((false_alm_cnt->cnt_ofdm_cca > 800) && (false_alm_cnt->cnt_bw_usc * 5 > false_alm_cnt->cnt_bw_lsc * 9)) {
primary_cca->intf_flag = 1;
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
}
}
} else { /* TP Traffic is High */
if (sec_ch_offset == 1) {
if (false_alm_cnt->cnt_bw_lsc > (false_alm_cnt->cnt_bw_usc + 500)) {
if (delay == 0) { /* add delay to avoid interference occurring abruptly, jump one time */
primary_cca->intf_flag = 1;
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
delay = 1;
} else
delay = 0;
}
} else if (sec_ch_offset == 2) {
if (false_alm_cnt->cnt_bw_usc > (false_alm_cnt->cnt_bw_lsc + 500)) {
if (delay == 0) { /* add delay to avoid interference occurring abruptly */
primary_cca->intf_flag = 1;
if (false_alm_cnt->cnt_ofdm_fail > false_alm_cnt->cnt_ofdm_cca >> 1)
primary_cca->intf_type = 1; /* interference is shift */
else
primary_cca->intf_type = 2; /* interference is in-band */
delay = 1;
} else
delay = 0;
}
}
}
}
PHYDM_DBG(dm, DBG_PRI_CCA, "Primary CCA=%d\n", primary_cca->pri_cca_flag);
PHYDM_DBG(dm, DBG_PRI_CCA, "Duplicate RTS=%d\n", primary_cca->dup_rts_flag);
}
} /* end of connected */
}
}
/* 1 Dynamic Primary CCA Monitor counter */
if ((primary_cca->pri_cca_flag == 1) || (primary_cca->dup_rts_flag == 1)) {
if (client_40mhz == 0) { /* client=20M no need to monitor primary cca flag */
client_40mhz_pre = client_40mhz;
return;
}
counter++;
PHYDM_DBG(dm, DBG_PRI_CCA, "counter=%d\n", counter);
if ((counter == 30) || ((client_40mhz - client_40mhz_pre) == 1)) { /* Every 60 sec to monitor one time */
primary_cca->monitor_flag = 1; /* monitor flag is triggered!!!!! */
if (primary_cca->pri_cca_flag == 1) {
primary_cca->pri_cca_flag = 0;
odm_set_bb_reg(dm, 0xc6c, BIT(8) | BIT(7), 0);
}
counter = 0;
}
}
}
client_40mhz_pre = client_40mhz;
}
#endif
#if (RTL8192E_SUPPORT == 1)
#if (DM_ODM_SUPPORT_TYPE == ODM_WIN)
void
odm_dynamic_primary_cca_mp_8192e(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
PADAPTER adapter = (PADAPTER)dm->adapter;
HAL_DATA_TYPE *hal_data = GET_HAL_DATA(adapter);
struct phydm_fa_struct *false_alm_cnt = &(dm->false_alm_cnt);
struct phydm_pricca_struct *primary_cca = &(dm->dm_pri_cca);
u64 OFDM_CCA, OFDM_FA, bw_usc_cnt, bw_lsc_cnt;
u8 sec_ch_offset;
static u8 count_down = PRI_CCA_MONITOR_TIME;
if (!dm->is_linked)
return;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
OFDM_CCA = false_alm_cnt->cnt_ofdm_cca;
OFDM_FA = false_alm_cnt->cnt_ofdm_fail;
bw_usc_cnt = false_alm_cnt->cnt_bw_usc;
bw_lsc_cnt = false_alm_cnt->cnt_bw_lsc;
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: OFDM CCA=%d\n", OFDM_CCA);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: OFDM FA=%d\n", OFDM_FA);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: BW_USC=%d\n", bw_usc_cnt);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: BW_LSC=%d\n", bw_lsc_cnt);
sec_ch_offset = *(dm->sec_ch_offset); /* NIC: 2: sec is below, 1: sec is above */
if (IsAPModeExist(adapter)) {
phydm_write_dynamic_cca(dm, MF_USC_LSC);
return;
}
if (*(dm->band_width) != CHANNEL_WIDTH_40)
return;
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: Cont Down= %d\n", count_down);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: Primary_CCA_flag=%d\n", primary_cca->pri_cca_flag);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: Intf_Type=%d\n", primary_cca->intf_type);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: Intf_flag=%d\n", primary_cca->intf_flag);
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: Duplicate RTS Flag=%d\n", primary_cca->dup_rts_flag);
if (primary_cca->pri_cca_flag == 0) {
if (sec_ch_offset == SECOND_CH_AT_LSB) { /* Primary channel is above NOTE: duplicate CTS can remove this condition */
if ((OFDM_CCA > OFDMCCA_TH) && (bw_lsc_cnt > (bw_usc_cnt + bw_ind_bias))
&& (OFDM_FA > (OFDM_CCA >> 1))) {
primary_cca->intf_type = 1;
primary_cca->intf_flag = 1;
phydm_write_dynamic_cca(dm, MF_USC);
primary_cca->pri_cca_flag = 1;
} else if ((OFDM_CCA > OFDMCCA_TH) && (bw_lsc_cnt > (bw_usc_cnt + bw_ind_bias))
&& (OFDM_FA < (OFDM_CCA >> 1))) {
primary_cca->intf_type = 2;
primary_cca->intf_flag = 1;
phydm_write_dynamic_cca(dm, MF_USC);
primary_cca->pri_cca_flag = 1;
primary_cca->dup_rts_flag = 1;
hal_data->RTSEN = 1;
} else {
primary_cca->intf_type = 0;
primary_cca->intf_flag = 0;
phydm_write_dynamic_cca(dm, MF_USC_LSC);
hal_data->RTSEN = 0;
primary_cca->dup_rts_flag = 0;
}
} else if (sec_ch_offset == SECOND_CH_AT_USB) {
if ((OFDM_CCA > OFDMCCA_TH) && (bw_usc_cnt > (bw_lsc_cnt + bw_ind_bias))
&& (OFDM_FA > (OFDM_CCA >> 1))) {
primary_cca->intf_type = 1;
primary_cca->intf_flag = 1;
phydm_write_dynamic_cca(dm, MF_LSC);
primary_cca->pri_cca_flag = 1;
} else if ((OFDM_CCA > OFDMCCA_TH) && (bw_usc_cnt > (bw_lsc_cnt + bw_ind_bias))
&& (OFDM_FA < (OFDM_CCA >> 1))) {
primary_cca->intf_type = 2;
primary_cca->intf_flag = 1;
phydm_write_dynamic_cca(dm, MF_LSC);
primary_cca->pri_cca_flag = 1;
primary_cca->dup_rts_flag = 1;
hal_data->RTSEN = 1;
} else {
primary_cca->intf_type = 0;
primary_cca->intf_flag = 0;
phydm_write_dynamic_cca(dm, MF_USC_LSC);
hal_data->RTSEN = 0;
primary_cca->dup_rts_flag = 0;
}
}
} else { /* primary_cca->pri_cca_flag==1 */
count_down--;
if (count_down == 0) {
count_down = PRI_CCA_MONITOR_TIME;
primary_cca->pri_cca_flag = 0;
phydm_write_dynamic_cca(dm, MF_USC_LSC); /* default */
hal_data->RTSEN = 0;
primary_cca->dup_rts_flag = 0;
primary_cca->intf_type = 0;
primary_cca->intf_flag = 0;
}
}
}
#elif (DM_ODM_SUPPORT_TYPE == ODM_AP)
void
odm_intf_detection(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_fa_struct *false_alm_cnt = &(dm->false_alm_cnt);
struct phydm_pricca_struct *primary_cca = &(dm->dm_pri_cca);
if ((false_alm_cnt->cnt_ofdm_cca > OFDMCCA_TH)
&& (false_alm_cnt->cnt_bw_lsc > (false_alm_cnt->cnt_bw_usc + bw_ind_bias))) {
primary_cca->intf_flag = 1;
primary_cca->ch_offset = 1; /* 1:LSC, 2:USC */
if (false_alm_cnt->cnt_ofdm_fail > (false_alm_cnt->cnt_ofdm_cca >> 1))
primary_cca->intf_type = 1;
else
primary_cca->intf_type = 2;
} else if ((false_alm_cnt->cnt_ofdm_cca > OFDMCCA_TH)
&& (false_alm_cnt->cnt_bw_usc > (false_alm_cnt->cnt_bw_lsc + bw_ind_bias))) {
primary_cca->intf_flag = 1;
primary_cca->ch_offset = 2; /* 1:LSC, 2:USC */
if (false_alm_cnt->cnt_ofdm_fail > (false_alm_cnt->cnt_ofdm_cca >> 1))
primary_cca->intf_type = 1;
else
primary_cca->intf_type = 2;
} else {
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
primary_cca->ch_offset = 0;
}
}
void
odm_dynamic_primary_cca_ap_8192e(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &(dm->dm_pri_cca);
u8 i;
static u32 count_down = PRI_CCA_MONITOR_TIME;
u8 STA_BW = false, STA_BW_pre = false, STA_BW_TMP = false;
boolean is_connected = false;
u8 sec_ch_offset;
u8 cur_mf_state;
struct cmn_sta_info *entry;
if (!dm->is_linked)
return;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
sec_ch_offset = *(dm->sec_ch_offset); /* AP: 1: sec is below, 2: sec is above */
for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
entry = dm->phydm_sta_info[i];
if (is_sta_active(entry)) {
STA_BW_TMP = entry->bw_mode;
if (STA_BW_TMP > STA_BW)
STA_BW = STA_BW_TMP;
is_connected = true;
}
}
if (*(dm->band_width) == CHANNEL_WIDTH_40) {
if (primary_cca->pri_cca_flag == 0) {
if (is_connected) {
if (STA_BW == CHANNEL_WIDTH_20) { /* 2 STA BW=20M */
primary_cca->pri_cca_flag = 1;
if (sec_ch_offset == 1) {
cur_mf_state = MF_USC;
phydm_write_dynamic_cca(dm, cur_mf_state);
} else if (sec_ch_offset == 2) {
cur_mf_state = MF_USC;
phydm_write_dynamic_cca(dm, cur_mf_state);
}
} else { /* 2 STA BW=40M */
if (primary_cca->intf_flag == 0)
odm_intf_detection(dm);
else { /* intf_flag = 1 */
if (primary_cca->intf_type == 1) {
if (primary_cca->ch_offset == 1) {
cur_mf_state = MF_USC;
if (sec_ch_offset == 1) /* AP, 1: primary is above 2: primary is below */
phydm_write_dynamic_cca(dm, cur_mf_state);
} else if (primary_cca->ch_offset == 2) {
cur_mf_state = MF_LSC;
if (sec_ch_offset == 2)
phydm_write_dynamic_cca(dm, cur_mf_state);
}
} else if (primary_cca->intf_type == 2)
PHYDM_DBG(dm, DBG_PRI_CCA, "92E: primary_cca->intf_type = 2\n");
}
}
} else /* disconnected interference detection */
odm_intf_detection(dm); /* end of disconnected */
} else { /* primary_cca->pri_cca_flag == 1 */
if (STA_BW == 0) {
STA_BW_pre = STA_BW;
return;
}
count_down--;
if ((count_down == 0) || ((STA_BW & STA_BW_pre) != 1)) {
count_down = PRI_CCA_MONITOR_TIME;
primary_cca->pri_cca_flag = 0;
primary_cca->intf_type = 0;
primary_cca->intf_flag = 0;
cur_mf_state = MF_USC_LSC;
phydm_write_dynamic_cca(dm, cur_mf_state); /* default */
}
}
STA_BW_pre = STA_BW;
} else {
/* 2 Reset */
phydm_primary_cca_init(dm);
cur_mf_state = MF_USC_LSC;
phydm_write_dynamic_cca(dm, cur_mf_state);
count_down = PRI_CCA_MONITOR_TIME;
}
}
#endif
#endif /* RTL8192E_SUPPORT == 1 */
#endif
#endif
boolean
odm_dynamic_primary_cca_dup_rts(
void *dm_void
)
{
#ifdef PHYDM_PRIMARY_CCA
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &dm->dm_pri_cca;
return primary_cca->dup_rts_flag;
#else
return 0;
#endif
}
void
phydm_primary_cca_init(
void *dm_void
)
{
#ifdef PHYDM_PRIMARY_CCA
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *primary_cca = &dm->dm_pri_cca;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA] Init ==>\n");
#if (RTL8188E_SUPPORT == 1) || (RTL8192E_SUPPORT == 1)
primary_cca->dup_rts_flag = 0;
primary_cca->intf_flag = 0;
primary_cca->intf_type = 0;
primary_cca->monitor_flag = 0;
primary_cca->pri_cca_flag = 0;
primary_cca->ch_offset = 0;
#endif
primary_cca->mf_state = 0xff;
primary_cca->pre_bw = (enum channel_width)0xff;
if (dm->support_ic_type & ODM_IC_11N_SERIES)
primary_cca->cca_th_40m_bkp = (u8)odm_get_bb_reg(dm, 0xc84, 0xf0000000);
#endif
}
void
phydm_primary_cca(
void *dm_void
)
{
#ifdef PHYDM_PRIMARY_CCA
struct dm_struct *dm = (struct dm_struct *)dm_void;
if (!(dm->support_ic_type & ODM_IC_11N_SERIES))
return;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
phydm_primary_cca_11n(dm);
#endif
}