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rtw_vht.c
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/******************************************************************************
*
* 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.
*
*****************************************************************************/
#define _RTW_VHT_C
#include <drv_types.h>
#include <hal_data.h>
#ifdef CONFIG_80211AC_VHT
const u16 _vht_max_mpdu_len[] = {
3895,
7991,
11454,
0,
};
const u8 _vht_sup_ch_width_set_to_bw_cap[] = {
BW_CAP_80M,
BW_CAP_80M | BW_CAP_160M,
BW_CAP_80M | BW_CAP_160M | BW_CAP_80_80M,
0,
};
#ifdef CONFIG_RTW_DEBUG
const char *const _vht_sup_ch_width_set_str[] = {
"80MHz",
"160MHz",
"160MHz & 80+80MHz",
"BW-RSVD",
};
void dump_vht_cap_ie_content(void *sel, const u8 *buf, u32 buf_len)
{
if (buf_len != VHT_CAP_IE_LEN) {
RTW_PRINT_SEL(sel, "Invalid VHT capability IE len:%d != %d\n", buf_len, VHT_CAP_IE_LEN);
return;
}
RTW_PRINT_SEL(sel, "cap_info:%02x %02x %02x %02x: MAX_MPDU_LEN:%u %s%s%s%s%s RX-STBC:%u MAX_AMPDU_LEN:%u\n"
, *(buf), *(buf + 1), *(buf + 2), *(buf + 3)
, vht_max_mpdu_len(GET_VHT_CAPABILITY_ELE_MAX_MPDU_LENGTH(buf))
, vht_sup_ch_width_set_str(GET_VHT_CAPABILITY_ELE_CHL_WIDTH(buf))
, GET_VHT_CAPABILITY_ELE_RX_LDPC(buf) ? " RX-LDPC" : ""
, GET_VHT_CAPABILITY_ELE_SHORT_GI80M(buf) ? " SGI-80" : ""
, GET_VHT_CAPABILITY_ELE_SHORT_GI160M(buf) ? " SGI-160" : ""
, GET_VHT_CAPABILITY_ELE_TX_STBC(buf) ? " TX-STBC" : ""
, GET_VHT_CAPABILITY_ELE_RX_STBC(buf)
, VHT_MAX_AMPDU_LEN(GET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(buf))
);
}
void dump_vht_cap_ie(void *sel, const u8 *ie, u32 ie_len)
{
const u8 *vht_cap_ie;
sint vht_cap_ielen;
vht_cap_ie = rtw_get_ie(ie, WLAN_EID_VHT_CAPABILITY, &vht_cap_ielen, ie_len);
if (!ie || vht_cap_ie != ie)
return;
dump_vht_cap_ie_content(sel, vht_cap_ie + 2, vht_cap_ielen);
}
const char *const _vht_op_ch_width_str[] = {
"20 or 40MHz",
"80MHz",
"160MHz",
"80+80MHz",
"BW-RSVD",
};
void dump_vht_op_ie_content(void *sel, const u8 *buf, u32 buf_len)
{
if (buf_len != VHT_OP_IE_LEN) {
RTW_PRINT_SEL(sel, "Invalid VHT operation IE len:%d != %d\n", buf_len, VHT_OP_IE_LEN);
return;
}
RTW_PRINT_SEL(sel, "%s, ch0:%u, ch1:%u\n"
, vht_op_ch_width_str(GET_VHT_OPERATION_ELE_CHL_WIDTH(buf))
, GET_VHT_OPERATION_ELE_CENTER_FREQ1(buf)
, GET_VHT_OPERATION_ELE_CENTER_FREQ2(buf)
);
}
void dump_vht_op_ie(void *sel, const u8 *ie, u32 ie_len)
{
const u8 *vht_op_ie;
sint vht_op_ielen;
vht_op_ie = rtw_get_ie(ie, WLAN_EID_VHT_OPERATION, &vht_op_ielen, ie_len);
if (!ie || vht_op_ie != ie)
return;
dump_vht_op_ie_content(sel, vht_op_ie + 2, vht_op_ielen);
}
#endif
/* 20/40/80, ShortGI, MCS Rate */
const u16 VHT_MCS_DATA_RATE[3][2][40] = { /* unit: 0.5M */
{ {
13, 26, 39, 52, 78, 104, 117, 130, 156, 156,
26, 52, 78, 104, 156, 208, 234, 260, 312, 312,
39, 78, 117, 156, 234, 312, 351, 390, 468, 520,
52, 104, 156, 208, 312, 416, 468, 520, 624, 624,
}, /* Long GI, 20MHz */
{
14, 29, 43, 58, 87, 116, 130, 144, 173, 173,
29, 58, 87, 116, 173, 231, 260, 289, 347, 347,
43, 87, 130, 173, 260, 347, 390, 433, 520, 578,
58, 116, 173, 231, 347, 462, 520, 578, 693, 693,
}
}, /* Short GI, 20MHz */
{ {
27, 54, 81, 108, 162, 216, 243, 270, 324, 360,
54, 108, 162, 216, 324, 432, 486, 540, 648, 720,
81, 162, 243, 324, 486, 648, 729, 810, 972, 1080,
108, 216, 324, 432, 648, 864, 972, 1080, 1296, 1440,
}, /* Long GI, 40MHz */
{
30, 60, 90, 120, 180, 240, 270, 300, 360, 400,
60, 120, 180, 240, 360, 480, 540, 600, 720, 800,
90, 180, 270, 360, 540, 720, 810, 900, 1080, 1200,
120, 240, 360, 480, 720, 960, 1080, 1200, 1440, 1600,
}
}, /* Short GI, 40MHz */
{ {
59, 117, 176, 234, 351, 468, 527, 585, 702, 780,
117, 234, 351, 468, 702, 936, 1053, 1170, 1404, 1560,
176, 351, 527, 702, 1053, 1404, 1580, 1755, 2106, 2340,
234, 468, 702, 936, 1404, 1872, 2106, 2340, 2808, 3120,
}, /* Long GI, 80MHz */
{
65, 130, 195, 260, 390, 520, 585, 650, 780, 867,
130, 260, 390, 520, 780, 1040, 1170, 1300, 1560, 1734,
195, 390, 585, 780, 1170, 1560, 1755, 1950, 2340, 2600,
260, 520, 780, 1040, 1560, 2080, 2340, 2600, 3120, 3467,
}
} /* Short GI, 80MHz */
};
u8 rtw_get_vht_highest_rate(u8 *pvht_mcs_map)
{
u8 i, j;
u8 bit_map;
u8 vht_mcs_rate = 0;
for (i = 0; i < 2; i++) {
if (pvht_mcs_map[i] != 0xff) {
for (j = 0; j < 8; j += 2) {
bit_map = (pvht_mcs_map[i] >> j) & 3;
if (bit_map != 3)
vht_mcs_rate = MGN_VHT1SS_MCS7 + 10 * j / 2 + i * 40 + bit_map; /* VHT rate indications begin from 0x90 */
}
}
}
/* RTW_INFO("HighestVHTMCSRate is %x\n", vht_mcs_rate); */
return vht_mcs_rate;
}
u8 rtw_vht_mcsmap_to_nss(u8 *pvht_mcs_map)
{
u8 i, j;
u8 bit_map;
u8 nss = 0;
for (i = 0; i < 2; i++) {
if (pvht_mcs_map[i] != 0xff) {
for (j = 0; j < 8; j += 2) {
bit_map = (pvht_mcs_map[i] >> j) & 3;
if (bit_map != 3)
nss++;
}
}
}
/* RTW_INFO("%s : %dSS\n", __FUNCTION__, nss); */
return nss;
}
void rtw_vht_nss_to_mcsmap(u8 nss, u8 *target_mcs_map, u8 *cur_mcs_map)
{
u8 i, j;
u8 cur_rate, target_rate;
for (i = 0; i < 2; i++) {
target_mcs_map[i] = 0;
for (j = 0; j < 8; j += 2) {
cur_rate = (cur_mcs_map[i] >> j) & 3;
if (cur_rate == 3) /* 0x3 indicates not supported that num of SS */
target_rate = 3;
else if (nss <= ((j / 2) + i * 4))
target_rate = 3;
else
target_rate = cur_rate;
target_mcs_map[i] |= (target_rate << j);
}
}
/* RTW_INFO("%s : %dSS\n", __FUNCTION__, nss); */
}
u16 rtw_vht_mcs_to_data_rate(u8 bw, u8 short_GI, u8 vht_mcs_rate)
{
if (vht_mcs_rate > MGN_VHT4SS_MCS9)
vht_mcs_rate = MGN_VHT4SS_MCS9;
/* RTW_INFO("bw=%d, short_GI=%d, ((vht_mcs_rate - MGN_VHT1SS_MCS0)&0x3f)=%d\n", bw, short_GI, ((vht_mcs_rate - MGN_VHT1SS_MCS0)&0x3f)); */
return VHT_MCS_DATA_RATE[bw][short_GI][((vht_mcs_rate - MGN_VHT1SS_MCS0) & 0x3f)];
}
void rtw_vht_use_default_setting(_adapter *padapter)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
BOOLEAN bHwLDPCSupport = _FALSE, bHwSTBCSupport = _FALSE;
#ifdef CONFIG_BEAMFORMING
BOOLEAN bHwSupportBeamformer = _FALSE, bHwSupportBeamformee = _FALSE;
u8 mu_bfer, mu_bfee;
#endif /* CONFIG_BEAMFORMING */
u8 tx_nss, rx_nss;
struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
pvhtpriv->sgi_80m = TEST_FLAG(pregistrypriv->short_gi, BIT2) ? _TRUE : _FALSE;
/* LDPC support */
rtw_hal_get_def_var(padapter, HAL_DEF_RX_LDPC, (u8 *)&bHwLDPCSupport);
CLEAR_FLAGS(pvhtpriv->ldpc_cap);
if (bHwLDPCSupport) {
if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT0))
SET_FLAG(pvhtpriv->ldpc_cap, LDPC_VHT_ENABLE_RX);
}
rtw_hal_get_def_var(padapter, HAL_DEF_TX_LDPC, (u8 *)&bHwLDPCSupport);
if (bHwLDPCSupport) {
if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT1))
SET_FLAG(pvhtpriv->ldpc_cap, LDPC_VHT_ENABLE_TX);
}
if (pvhtpriv->ldpc_cap)
RTW_INFO("[VHT] Support LDPC = 0x%02X\n", pvhtpriv->ldpc_cap);
/* STBC */
rtw_hal_get_def_var(padapter, HAL_DEF_TX_STBC, (u8 *)&bHwSTBCSupport);
CLEAR_FLAGS(pvhtpriv->stbc_cap);
if (bHwSTBCSupport) {
if (TEST_FLAG(pregistrypriv->stbc_cap, BIT1))
SET_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_TX);
}
rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)&bHwSTBCSupport);
if (bHwSTBCSupport) {
if (TEST_FLAG(pregistrypriv->stbc_cap, BIT0))
SET_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_RX);
}
if (pvhtpriv->stbc_cap)
RTW_INFO("[VHT] Support STBC = 0x%02X\n", pvhtpriv->stbc_cap);
/* Beamforming setting */
CLEAR_FLAGS(pvhtpriv->beamform_cap);
#ifdef CONFIG_BEAMFORMING
#ifdef RTW_BEAMFORMING_VERSION_2
#ifdef CONFIG_CONCURRENT_MODE
/* only enable beamforming in STA client mode */
if (MLME_IS_STA(padapter) && !MLME_IS_GC(padapter))
#else
if ((MLME_IS_AP(padapter) && !MLME_IS_GO(padapter)) ||
(MLME_IS_STA(padapter) && !MLME_IS_GC(padapter)))
#endif
#endif
{
rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMER,
(u8 *)&bHwSupportBeamformer);
rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMEE,
(u8 *)&bHwSupportBeamformee);
mu_bfer = _FALSE;
mu_bfee = _FALSE;
rtw_hal_get_def_var(padapter, HAL_DEF_VHT_MU_BEAMFORMER, &mu_bfer);
rtw_hal_get_def_var(padapter, HAL_DEF_VHT_MU_BEAMFORMEE, &mu_bfee);
if (TEST_FLAG(pregistrypriv->beamform_cap, BIT0) && bHwSupportBeamformer) {
#ifdef CONFIG_CONCURRENT_MODE
if ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE) {
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
RTW_INFO("[VHT] CONCURRENT AP Support Beamformer\n");
if (TEST_FLAG(pregistrypriv->beamform_cap, BIT(2))
&& (_TRUE == mu_bfer)) {
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE);
RTW_INFO("[VHT] Support MU-MIMO AP\n");
}
} else
RTW_INFO("[VHT] CONCURRENT not AP ;not allow Support Beamformer\n");
#else
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
RTW_INFO("[VHT] Support Beamformer\n");
if (TEST_FLAG(pregistrypriv->beamform_cap, BIT(2))
&& (_TRUE == mu_bfer)
&& ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE)) {
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE);
RTW_INFO("[VHT] Support MU-MIMO AP\n");
}
#endif
}
if (TEST_FLAG(pregistrypriv->beamform_cap, BIT1) && bHwSupportBeamformee) {
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
RTW_INFO("[VHT] Support Beamformee\n");
if (TEST_FLAG(pregistrypriv->beamform_cap, BIT(3))
&& (_TRUE == mu_bfee)
&& ((pmlmeinfo->state & 0x03) != WIFI_FW_AP_STATE)) {
SET_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_STA_ENABLE);
RTW_INFO("[VHT] Support MU-MIMO STA\n");
}
}
}
#endif /* CONFIG_BEAMFORMING */
pvhtpriv->ampdu_len = pregistrypriv->ampdu_factor;
tx_nss = GET_HAL_TX_NSS(padapter);
rx_nss = GET_HAL_RX_NSS(padapter);
/* for now, vhtpriv.vht_mcs_map comes from RX NSS */
rtw_vht_nss_to_mcsmap(rx_nss, pvhtpriv->vht_mcs_map, pregistrypriv->vht_rx_mcs_map);
pvhtpriv->vht_highest_rate = rtw_get_vht_highest_rate(pvhtpriv->vht_mcs_map);
}
u64 rtw_vht_mcs_map_to_bitmap(u8 *mcs_map, u8 nss)
{
u8 i, j, tmp;
u64 bitmap = 0;
u8 bits_nss = nss * 2;
for (i = j = 0; i < bits_nss; i += 2, j += 10) {
/* every two bits means single sptial stream */
tmp = (mcs_map[i / 8] >> i) & 3;
switch (tmp) {
case 2:
bitmap = bitmap | ((u64)0x03ff << j);
break;
case 1:
bitmap = bitmap | ((u64)0x01ff << j);
break;
case 0:
bitmap = bitmap | ((u64)0x00ff << j);
break;
default:
break;
}
}
RTW_INFO("vht_mcs_map=%02x %02x, nss=%u => bitmap=%016llx\n"
, mcs_map[0], mcs_map[1], nss, bitmap);
return bitmap;
}
#ifdef CONFIG_BEAMFORMING
void update_sta_vht_info_apmode_bf_cap(_adapter *padapter, struct sta_info *psta)
{
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
struct vht_priv *pvhtpriv_ap = &pmlmepriv->vhtpriv;
struct vht_priv *pvhtpriv_sta = &psta->vhtpriv;
u16 cur_beamform_cap = 0;
/* B11 SU Beamformer Capable, the target supports Beamformer and we are Beamformee */
if (TEST_FLAG(pvhtpriv_ap->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE) &&
GET_VHT_CAPABILITY_ELE_SU_BFEE(pvhtpriv_sta->vht_cap)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
/*Shift to BEAMFORMING_VHT_BEAMFORMER_STS_CAP*/
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFEE_STS_CAP(pvhtpriv_sta->vht_cap) << 8);
}
/* B12 SU Beamformee Capable, the target supports Beamformee and we are Beamformer */
if (TEST_FLAG(pvhtpriv_ap->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE) &&
GET_VHT_CAPABILITY_ELE_SU_BFER(pvhtpriv_sta->vht_cap)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
/*Shit to BEAMFORMING_VHT_BEAMFORMEE_SOUND_DIM*/
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFER_SOUND_DIM_NUM(pvhtpriv_sta->vht_cap) << 12);
}
if (cur_beamform_cap)
RTW_INFO("Current STA(%d) VHT Beamforming Setting = %02X\n", psta->cmn.aid, cur_beamform_cap);
pvhtpriv_sta->beamform_cap = cur_beamform_cap;
psta->cmn.bf_info.vht_beamform_cap = cur_beamform_cap;
}
#endif
void update_sta_vht_info_apmode(_adapter *padapter, void *sta)
{
struct sta_info *psta = (struct sta_info *)sta;
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct vht_priv *pvhtpriv_ap = &pmlmepriv->vhtpriv;
struct vht_priv *pvhtpriv_sta = &psta->vhtpriv;
u8 cur_ldpc_cap = 0, cur_stbc_cap = 0;
s8 bw_mode = -1;
u8 *pcap_mcs;
if (pvhtpriv_sta->vht_option == _FALSE)
return;
if (pvhtpriv_sta->op_present) {
switch (GET_VHT_OPERATION_ELE_CHL_WIDTH(pvhtpriv_sta->vht_op)) {
case 1: /* 80MHz */
case 2: /* 160MHz */
case 3: /* 80+80 */
bw_mode = CHANNEL_WIDTH_80; /* only support up to 80MHz for now */
break;
}
}
if (pvhtpriv_sta->notify_present)
bw_mode = GET_VHT_OPERATING_MODE_FIELD_CHNL_WIDTH(&pvhtpriv_sta->vht_op_mode_notify);
else if (MLME_IS_AP(padapter)) {
/* for VHT client without Operating Mode Notify IE; minimal 80MHz */
if (bw_mode < CHANNEL_WIDTH_80)
bw_mode = CHANNEL_WIDTH_80;
}
if (bw_mode != -1)
psta->cmn.bw_mode = bw_mode; /* update bw_mode only if get value from VHT IEs */
psta->cmn.ra_info.is_vht_enable = _TRUE;
/* B4 Rx LDPC */
if (TEST_FLAG(pvhtpriv_ap->ldpc_cap, LDPC_VHT_ENABLE_TX) &&
GET_VHT_CAPABILITY_ELE_RX_LDPC(pvhtpriv_sta->vht_cap)) {
SET_FLAG(cur_ldpc_cap, (LDPC_VHT_ENABLE_TX | LDPC_VHT_CAP_TX));
RTW_INFO("Current STA(%d) VHT LDPC = %02X\n", psta->cmn.aid, cur_ldpc_cap);
}
pvhtpriv_sta->ldpc_cap = cur_ldpc_cap;
if (psta->cmn.bw_mode > pmlmeext->cur_bwmode)
psta->cmn.bw_mode = pmlmeext->cur_bwmode;
if (psta->cmn.bw_mode == CHANNEL_WIDTH_80) {
/* B5 Short GI for 80 MHz */
pvhtpriv_sta->sgi_80m = (GET_VHT_CAPABILITY_ELE_SHORT_GI80M(pvhtpriv_sta->vht_cap) & pvhtpriv_ap->sgi_80m) ? _TRUE : _FALSE;
/* RTW_INFO("Current STA ShortGI80MHz = %d\n", pvhtpriv_sta->sgi_80m); */
} else if (psta->cmn.bw_mode >= CHANNEL_WIDTH_160) {
/* B5 Short GI for 80 MHz */
pvhtpriv_sta->sgi_80m = (GET_VHT_CAPABILITY_ELE_SHORT_GI160M(pvhtpriv_sta->vht_cap) & pvhtpriv_ap->sgi_80m) ? _TRUE : _FALSE;
/* RTW_INFO("Current STA ShortGI160MHz = %d\n", pvhtpriv_sta->sgi_80m); */
}
/* B8 B9 B10 Rx STBC */
if (TEST_FLAG(pvhtpriv_ap->stbc_cap, STBC_VHT_ENABLE_TX) &&
GET_VHT_CAPABILITY_ELE_RX_STBC(pvhtpriv_sta->vht_cap)) {
SET_FLAG(cur_stbc_cap, (STBC_VHT_ENABLE_TX | STBC_VHT_CAP_TX));
RTW_INFO("Current STA(%d) VHT STBC = %02X\n", psta->cmn.aid, cur_stbc_cap);
}
pvhtpriv_sta->stbc_cap = cur_stbc_cap;
#ifdef CONFIG_BEAMFORMING
update_sta_vht_info_apmode_bf_cap(padapter, psta);
#endif
/* B23 B24 B25 Maximum A-MPDU Length Exponent */
pvhtpriv_sta->ampdu_len = GET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(pvhtpriv_sta->vht_cap);
pcap_mcs = GET_VHT_CAPABILITY_ELE_RX_MCS(pvhtpriv_sta->vht_cap);
_rtw_memcpy(pvhtpriv_sta->vht_mcs_map, pcap_mcs, 2);
pvhtpriv_sta->vht_highest_rate = rtw_get_vht_highest_rate(pvhtpriv_sta->vht_mcs_map);
}
void update_hw_vht_param(_adapter *padapter)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
u8 ht_AMPDU_len;
ht_AMPDU_len = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x03;
if (pvhtpriv->ampdu_len > ht_AMPDU_len)
rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_FACTOR, (u8 *)(&pvhtpriv->ampdu_len));
}
#ifdef ROKU_PRIVATE
u8 VHT_get_ss_from_map(u8 *vht_mcs_map)
{
u8 i, j;
u8 ss = 0;
for (i = 0; i < 2; i++) {
if (vht_mcs_map[i] != 0xff) {
for (j = 0; j < 8; j += 2) {
if (((vht_mcs_map[i] >> j) & 0x03) == 0x03)
break;
ss++;
}
}
}
return ss;
}
void VHT_caps_handler_infra_ap(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv_infra_ap *pvhtpriv = &pmlmepriv->vhtpriv_infra_ap;
u8 cur_stbc_cap_infra_ap = 0;
u16 cur_beamform_cap_infra_ap = 0;
u8 *pcap_mcs;
u8 *pcap_mcs_tx;
u8 Rx_ss = 0, Tx_ss = 0;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
if (pIE == NULL)
return;
pmlmeinfo->ht_vht_received |= BIT(1);
pvhtpriv->ldpc_cap_infra_ap = GET_VHT_CAPABILITY_ELE_RX_LDPC(pIE->data);
if (GET_VHT_CAPABILITY_ELE_RX_STBC(pIE->data))
SET_FLAG(cur_stbc_cap_infra_ap, STBC_VHT_ENABLE_RX);
if (GET_VHT_CAPABILITY_ELE_TX_STBC(pIE->data))
SET_FLAG(cur_stbc_cap_infra_ap, STBC_VHT_ENABLE_TX);
pvhtpriv->stbc_cap_infra_ap = cur_stbc_cap_infra_ap;
/*store ap info for channel bandwidth*/
pvhtpriv->channel_width_infra_ap = GET_VHT_CAPABILITY_ELE_CHL_WIDTH(pIE->data);
/*check B11: SU Beamformer Capable and B12: SU Beamformee B19: MU Beamformer B20:MU Beamformee*/
if (GET_VHT_CAPABILITY_ELE_SU_BFER(pIE->data))
SET_FLAG(cur_beamform_cap_infra_ap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
if (GET_VHT_CAPABILITY_ELE_SU_BFEE(pIE->data))
SET_FLAG(cur_beamform_cap_infra_ap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
if (GET_VHT_CAPABILITY_ELE_MU_BFER(pIE->data))
SET_FLAG(cur_beamform_cap_infra_ap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE);
if (GET_VHT_CAPABILITY_ELE_MU_BFEE(pIE->data))
SET_FLAG(cur_beamform_cap_infra_ap, BEAMFORMING_VHT_MU_MIMO_STA_ENABLE);
pvhtpriv->beamform_cap_infra_ap = cur_beamform_cap_infra_ap;
/*store information about vht_mcs_set*/
pcap_mcs = GET_VHT_CAPABILITY_ELE_RX_MCS(pIE->data);
pcap_mcs_tx = GET_VHT_CAPABILITY_ELE_TX_MCS(pIE->data);
_rtw_memcpy(pvhtpriv->vht_mcs_map_infra_ap, pcap_mcs, 2);
_rtw_memcpy(pvhtpriv->vht_mcs_map_tx_infra_ap, pcap_mcs_tx, 2);
Rx_ss = VHT_get_ss_from_map(pvhtpriv->vht_mcs_map_infra_ap);
Tx_ss = VHT_get_ss_from_map(pvhtpriv->vht_mcs_map_tx_infra_ap);
if (Rx_ss >= Tx_ss) {
pvhtpriv->number_of_streams_infra_ap = Rx_ss;
} else{
pvhtpriv->number_of_streams_infra_ap = Tx_ss;
}
}
#endif /* ROKU_PRIVATE */
void VHT_caps_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
u8 cur_ldpc_cap = 0, cur_stbc_cap = 0, rx_nss = 0;
u16 cur_beamform_cap = 0;
u8 *pcap_mcs;
if (pIE == NULL)
return;
if (pvhtpriv->vht_option == _FALSE)
return;
pmlmeinfo->VHT_enable = 1;
/* B4 Rx LDPC */
if (TEST_FLAG(pvhtpriv->ldpc_cap, LDPC_VHT_ENABLE_TX) &&
GET_VHT_CAPABILITY_ELE_RX_LDPC(pIE->data)) {
SET_FLAG(cur_ldpc_cap, (LDPC_VHT_ENABLE_TX | LDPC_VHT_CAP_TX));
RTW_INFO("Current VHT LDPC Setting = %02X\n", cur_ldpc_cap);
}
pvhtpriv->ldpc_cap = cur_ldpc_cap;
/* B5 Short GI for 80 MHz */
pvhtpriv->sgi_80m = (GET_VHT_CAPABILITY_ELE_SHORT_GI80M(pIE->data) & pvhtpriv->sgi_80m) ? _TRUE : _FALSE;
/* RTW_INFO("Current ShortGI80MHz = %d\n", pvhtpriv->sgi_80m); */
/* B8 B9 B10 Rx STBC */
if (TEST_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_TX) &&
GET_VHT_CAPABILITY_ELE_RX_STBC(pIE->data)) {
SET_FLAG(cur_stbc_cap, (STBC_VHT_ENABLE_TX | STBC_VHT_CAP_TX));
RTW_INFO("Current VHT STBC Setting = %02X\n", cur_stbc_cap);
}
pvhtpriv->stbc_cap = cur_stbc_cap;
#ifdef CONFIG_BEAMFORMING
#ifdef RTW_BEAMFORMING_VERSION_2
/*
* B11 SU Beamformer Capable,
* the target supports Beamformer and we are Beamformee
*/
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE)
&& GET_VHT_CAPABILITY_ELE_SU_BFER(pIE->data)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
/* Shift to BEAMFORMING_VHT_BEAMFORMEE_STS_CAP */
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFEE_STS_CAP(pIE->data) << 8);
/*
* B19 MU Beamformer Capable,
* the target supports Beamformer and we are Beamformee
*/
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_STA_ENABLE)
&& GET_VHT_CAPABILITY_ELE_MU_BFER(pIE->data))
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_MU_MIMO_STA_ENABLE);
}
/*
* B12 SU Beamformee Capable,
* the target supports Beamformee and we are Beamformer
*/
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE)
&& GET_VHT_CAPABILITY_ELE_SU_BFEE(pIE->data)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
/* Shit to BEAMFORMING_VHT_BEAMFORMER_SOUND_DIM */
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFER_SOUND_DIM_NUM(pIE->data) << 12);
/*
* B20 MU Beamformee Capable,
* the target supports Beamformee and we are Beamformer
*/
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE)
&& GET_VHT_CAPABILITY_ELE_MU_BFEE(pIE->data))
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE);
}
pvhtpriv->beamform_cap = cur_beamform_cap;
RTW_INFO("Current VHT Beamforming Setting=0x%04X\n", cur_beamform_cap);
#else /* !RTW_BEAMFORMING_VERSION_2 */
/* B11 SU Beamformer Capable, the target supports Beamformer and we are Beamformee */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE) &&
GET_VHT_CAPABILITY_ELE_SU_BFEE(pIE->data)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
/*Shift to BEAMFORMING_VHT_BEAMFORMER_STS_CAP*/
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFEE_STS_CAP(pIE->data) << 8);
}
/* B12 SU Beamformee Capable, the target supports Beamformee and we are Beamformer */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE) &&
GET_VHT_CAPABILITY_ELE_SU_BFER(pIE->data)) {
SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
/*Shit to BEAMFORMING_VHT_BEAMFORMEE_SOUND_DIM*/
SET_FLAG(cur_beamform_cap, GET_VHT_CAPABILITY_ELE_SU_BFER_SOUND_DIM_NUM(pIE->data) << 12);
}
pvhtpriv->beamform_cap = cur_beamform_cap;
if (cur_beamform_cap)
RTW_INFO("Current VHT Beamforming Setting = %02X\n", cur_beamform_cap);
#endif /* !RTW_BEAMFORMING_VERSION_2 */
#endif /* CONFIG_BEAMFORMING */
/* B23 B24 B25 Maximum A-MPDU Length Exponent */
pvhtpriv->ampdu_len = GET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(pIE->data);
pcap_mcs = GET_VHT_CAPABILITY_ELE_RX_MCS(pIE->data);
rx_nss = GET_HAL_RX_NSS(padapter);
rtw_vht_nss_to_mcsmap(rx_nss, pvhtpriv->vht_mcs_map, pcap_mcs);
pvhtpriv->vht_highest_rate = rtw_get_vht_highest_rate(pvhtpriv->vht_mcs_map);
}
void VHT_operation_handler(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
if (pIE == NULL)
return;
if (pvhtpriv->vht_option == _FALSE)
return;
}
void rtw_process_vht_op_mode_notify(_adapter *padapter, u8 *pframe, void *sta)
{
struct sta_info *psta = (struct sta_info *)sta;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
struct registry_priv *regsty = adapter_to_regsty(padapter);
u8 target_bw;
u8 target_rxss, current_rxss;
u8 update_ra = _FALSE;
u8 tx_nss = 0;
if (pvhtpriv->vht_option == _FALSE)
return;
target_bw = GET_VHT_OPERATING_MODE_FIELD_CHNL_WIDTH(pframe);
tx_nss = GET_HAL_TX_NSS(padapter);
target_rxss = rtw_min(tx_nss, (GET_VHT_OPERATING_MODE_FIELD_RX_NSS(pframe) + 1));
if (target_bw != psta->cmn.bw_mode) {
if (hal_is_bw_support(padapter, target_bw)
&& REGSTY_IS_BW_5G_SUPPORT(regsty, target_bw)
) {
update_ra = _TRUE;
psta->cmn.bw_mode = target_bw;
}
}
current_rxss = rtw_vht_mcsmap_to_nss(psta->vhtpriv.vht_mcs_map);
if (target_rxss != current_rxss) {
u8 vht_mcs_map[2] = {};
update_ra = _TRUE;
rtw_vht_nss_to_mcsmap(target_rxss, vht_mcs_map, psta->vhtpriv.vht_mcs_map);
_rtw_memcpy(psta->vhtpriv.vht_mcs_map, vht_mcs_map, 2);
rtw_hal_update_sta_ra_info(padapter, psta);
}
if (update_ra)
rtw_dm_ra_mask_wk_cmd(padapter, (u8 *)psta);
}
u32 rtw_build_vht_operation_ie(_adapter *padapter, u8 *pbuf, u8 channel)
{
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
/* struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; */
u8 ChnlWidth, center_freq, bw_mode;
u32 len = 0;
u8 operation[5];
_rtw_memset(operation, 0, 5);
bw_mode = REGSTY_BW_5G(pregistrypriv); /* TODO: control op bw with other info */
if (hal_chk_bw_cap(padapter, BW_CAP_80M | BW_CAP_160M)
&& REGSTY_BW_5G(pregistrypriv) >= CHANNEL_WIDTH_80
) {
center_freq = rtw_get_center_ch(channel, bw_mode, HAL_PRIME_CHNL_OFFSET_LOWER);
ChnlWidth = 1;
} else {
center_freq = 0;
ChnlWidth = 0;
}
SET_VHT_OPERATION_ELE_CHL_WIDTH(operation, ChnlWidth);
/* center frequency */
SET_VHT_OPERATION_ELE_CHL_CENTER_FREQ1(operation, center_freq);/* Todo: need to set correct center channel */
SET_VHT_OPERATION_ELE_CHL_CENTER_FREQ2(operation, 0);
_rtw_memcpy(operation + 3, pvhtpriv->vht_mcs_map, 2);
rtw_set_ie(pbuf, EID_VHTOperation, 5, operation, &len);
return len;
}
u32 rtw_build_vht_op_mode_notify_ie(_adapter *padapter, u8 *pbuf, u8 bw)
{
/* struct registry_priv *pregistrypriv = &padapter->registrypriv; */
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
u32 len = 0;
u8 opmode = 0;
u8 chnl_width, rx_nss;
chnl_width = bw;
rx_nss = rtw_vht_mcsmap_to_nss(pvhtpriv->vht_mcs_map);
SET_VHT_OPERATING_MODE_FIELD_CHNL_WIDTH(&opmode, chnl_width);
SET_VHT_OPERATING_MODE_FIELD_RX_NSS(&opmode, (rx_nss - 1));
SET_VHT_OPERATING_MODE_FIELD_RX_NSS_TYPE(&opmode, 0); /* Todo */
pvhtpriv->vht_op_mode_notify = opmode;
pbuf = rtw_set_ie(pbuf, EID_OpModeNotification, 1, &opmode, &len);
return len;
}
u32 rtw_build_vht_cap_ie(_adapter *padapter, u8 *pbuf)
{
u8 bw, rf_num, rx_stbc_nss = 0;
u16 HighestRate;
u8 *pcap, *pcap_mcs;
u32 len = 0;
u32 rx_packet_offset, max_recvbuf_sz;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
pcap = pvhtpriv->vht_cap;
_rtw_memset(pcap, 0, 32);
/* B0 B1 Maximum MPDU Length */
rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
RTW_DBG("%s, line%d, Available RX buf size = %d bytes\n", __FUNCTION__, __LINE__, max_recvbuf_sz - rx_packet_offset);
if ((max_recvbuf_sz - rx_packet_offset) >= 11454) {
SET_VHT_CAPABILITY_ELE_MAX_MPDU_LENGTH(pcap, 2);
RTW_INFO("%s, line%d, Set MAX MPDU len = 11454 bytes\n", __FUNCTION__, __LINE__);
} else if ((max_recvbuf_sz - rx_packet_offset) >= 7991) {
SET_VHT_CAPABILITY_ELE_MAX_MPDU_LENGTH(pcap, 1);
RTW_INFO("%s, line%d, Set MAX MPDU len = 7991 bytes\n", __FUNCTION__, __LINE__);
} else if ((max_recvbuf_sz - rx_packet_offset) >= 3895) {
SET_VHT_CAPABILITY_ELE_MAX_MPDU_LENGTH(pcap, 0);
RTW_INFO("%s, line%d, Set MAX MPDU len = 3895 bytes\n", __FUNCTION__, __LINE__);
} else
RTW_ERR("%s, line%d, Error!! Available RX buf size < 3895 bytes\n", __FUNCTION__, __LINE__);
/* B2 B3 Supported Channel Width Set */
if (hal_chk_bw_cap(padapter, BW_CAP_160M) && REGSTY_IS_BW_5G_SUPPORT(pregistrypriv, CHANNEL_WIDTH_160)) {
if (hal_chk_bw_cap(padapter, BW_CAP_80_80M) && REGSTY_IS_BW_5G_SUPPORT(pregistrypriv, CHANNEL_WIDTH_80_80))
SET_VHT_CAPABILITY_ELE_CHL_WIDTH(pcap, 2);
else
SET_VHT_CAPABILITY_ELE_CHL_WIDTH(pcap, 1);
} else
SET_VHT_CAPABILITY_ELE_CHL_WIDTH(pcap, 0);
/* B4 Rx LDPC */
if (TEST_FLAG(pvhtpriv->ldpc_cap, LDPC_VHT_ENABLE_RX)) {
SET_VHT_CAPABILITY_ELE_RX_LDPC(pcap, 1);
RTW_INFO("[VHT] Declare supporting RX LDPC\n");
}
/* B5 ShortGI for 80MHz */
SET_VHT_CAPABILITY_ELE_SHORT_GI80M(pcap, pvhtpriv->sgi_80m ? 1 : 0); /* We can receive Short GI of 80M */
if (pvhtpriv->sgi_80m)
RTW_INFO("[VHT] Declare supporting SGI 80MHz\n");
/* B6 ShortGI for 160MHz */
/* SET_VHT_CAPABILITY_ELE_SHORT_GI160M(pcap, pvhtpriv->sgi_80m? 1 : 0); */
/* B7 Tx STBC */
if (TEST_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_TX)) {
SET_VHT_CAPABILITY_ELE_TX_STBC(pcap, 1);
RTW_INFO("[VHT] Declare supporting TX STBC\n");
}
/* B8 B9 B10 Rx STBC */
if (TEST_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_RX)) {
rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)(&rx_stbc_nss));
SET_VHT_CAPABILITY_ELE_RX_STBC(pcap, rx_stbc_nss);
RTW_INFO("[VHT] Declare supporting RX STBC = %d\n", rx_stbc_nss);
}
#ifdef CONFIG_BEAMFORMING
/* B11 SU Beamformer Capable */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE)) {
SET_VHT_CAPABILITY_ELE_SU_BFER(pcap, 1);
RTW_INFO("[VHT] Declare supporting SU Bfer\n");
/* B16 17 18 Number of Sounding Dimensions */
rtw_hal_get_def_var(padapter, HAL_DEF_BEAMFORMER_CAP, (u8 *)&rf_num);
SET_VHT_CAPABILITY_ELE_SOUNDING_DIMENSIONS(pcap, rf_num);
/* B19 MU Beamformer Capable */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_AP_ENABLE)) {
SET_VHT_CAPABILITY_ELE_MU_BFER(pcap, 1);
RTW_INFO("[VHT] Declare supporting MU Bfer\n");
}
}
/* B12 SU Beamformee Capable */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE)) {
SET_VHT_CAPABILITY_ELE_SU_BFEE(pcap, 1);
RTW_INFO("[VHT] Declare supporting SU Bfee\n");
rtw_hal_get_def_var(padapter, HAL_DEF_BEAMFORMEE_CAP, (u8 *)&rf_num);
/* IOT action suggested by Yu Chen 2017/3/3 */
#ifdef CONFIG_80211AC_VHT
if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_BROADCOM) &&
!pvhtpriv->ap_bf_cap.is_mu_bfer &&
pvhtpriv->ap_bf_cap.su_sound_dim == 2)
rf_num = (rf_num >= 2 ? 2 : rf_num);
#endif
/* B13 14 15 Compressed Steering Number of Beamformer Antennas Supported */
SET_VHT_CAPABILITY_ELE_BFER_ANT_SUPP(pcap, rf_num);
/* B20 SU Beamformee Capable */
if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_MU_MIMO_STA_ENABLE)) {
SET_VHT_CAPABILITY_ELE_MU_BFEE(pcap, 1);
RTW_INFO("[VHT] Declare supporting MU Bfee\n");
}
}
#endif/*CONFIG_BEAMFORMING*/
/* B21 VHT TXOP PS */
SET_VHT_CAPABILITY_ELE_TXOP_PS(pcap, 0);
/* B22 +HTC-VHT Capable */
SET_VHT_CAPABILITY_ELE_HTC_VHT(pcap, 1);
/* B23 24 25 Maximum A-MPDU Length Exponent */
if (pregistrypriv->ampdu_factor != 0xFE)
SET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(pcap, pregistrypriv->ampdu_factor);
else
SET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(pcap, 7);
/* B26 27 VHT Link Adaptation Capable */
SET_VHT_CAPABILITY_ELE_LINK_ADAPTION(pcap, 0);
pcap_mcs = GET_VHT_CAPABILITY_ELE_RX_MCS(pcap);
_rtw_memcpy(pcap_mcs, pvhtpriv->vht_mcs_map, 2);
pcap_mcs = GET_VHT_CAPABILITY_ELE_TX_MCS(pcap);
_rtw_memcpy(pcap_mcs, pvhtpriv->vht_mcs_map, 2);
/* find the largest bw supported by both registry and hal */
bw = hal_largest_bw(padapter, REGSTY_BW_5G(pregistrypriv));
HighestRate = VHT_MCS_DATA_RATE[bw][pvhtpriv->sgi_80m][((pvhtpriv->vht_highest_rate - MGN_VHT1SS_MCS0) & 0x3f)];
HighestRate = (HighestRate + 1) >> 1;
SET_VHT_CAPABILITY_ELE_MCS_RX_HIGHEST_RATE(pcap, HighestRate); /* indicate we support highest rx rate is 600Mbps. */
SET_VHT_CAPABILITY_ELE_MCS_TX_HIGHEST_RATE(pcap, HighestRate); /* indicate we support highest tx rate is 600Mbps. */
pbuf = rtw_set_ie(pbuf, EID_VHTCapability, 12, pcap, &len);
return len;
}
u32 rtw_restructure_vht_ie(_adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
{
struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
RT_CHANNEL_INFO *chset = rfctl->channel_set;
u32 ielen;
u8 max_bw;
u8 oper_ch, oper_bw = CHANNEL_WIDTH_20, oper_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
u8 *out_vht_op_ie, *ht_op_ie, *vht_cap_ie, *vht_op_ie;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct vht_priv *pvhtpriv = &pmlmepriv->vhtpriv;
rtw_vht_use_default_setting(padapter);
ht_op_ie = rtw_get_ie(in_ie + 12, WLAN_EID_HT_OPERATION, &ielen, in_len - 12);
if (!ht_op_ie || ielen != HT_OP_IE_LEN)
goto exit;
vht_cap_ie = rtw_get_ie(in_ie + 12, EID_VHTCapability, &ielen, in_len - 12);
if (!vht_cap_ie || ielen != VHT_CAP_IE_LEN)
goto exit;
vht_op_ie = rtw_get_ie(in_ie + 12, EID_VHTOperation, &ielen, in_len - 12);
if (!vht_op_ie || ielen != VHT_OP_IE_LEN)
goto exit;
/* VHT Capabilities element */
*pout_len += rtw_build_vht_cap_ie(padapter, out_ie + *pout_len);
/* VHT Operation element */
out_vht_op_ie = out_ie + *pout_len;
rtw_set_ie(out_vht_op_ie, EID_VHTOperation, VHT_OP_IE_LEN, vht_op_ie + 2 , pout_len);
/* get primary channel from HT_OP_IE */
oper_ch = GET_HT_OP_ELE_PRI_CHL(ht_op_ie + 2);
/* find the largest bw supported by both registry and hal */
max_bw = hal_largest_bw(padapter, REGSTY_BW_5G(pregistrypriv));
if (max_bw >= CHANNEL_WIDTH_40) {
/* get bw offset form HT_OP_IE */
if (GET_HT_OP_ELE_STA_CHL_WIDTH(ht_op_ie + 2)) {
switch (GET_HT_OP_ELE_2ND_CHL_OFFSET(ht_op_ie + 2)) {
case SCA:
oper_bw = CHANNEL_WIDTH_40;
oper_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
break;
case SCB:
oper_bw = CHANNEL_WIDTH_40;
oper_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
break;
}
}
if (oper_bw == CHANNEL_WIDTH_40) {
switch (GET_VHT_OPERATION_ELE_CHL_WIDTH(vht_op_ie + 2)) {
case 1: /* 80MHz */
case 2: /* 160MHz */
case 3: /* 80+80 */
oper_bw = CHANNEL_WIDTH_80; /* only support up to 80MHz for now */
break;
}
oper_bw = rtw_min(oper_bw, max_bw);