void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap)
{
u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask);
u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask);
int i;
if (sdata->vif.type != NL80211_IFTYPE_STATION) {
/* AP interfaces call this code when adding new stations,
* so just silently ignore non station interfaces.
*/
return;
}
/* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix
* the check in ieee80211_add_ht_ie.
*/
/* check for HT over-rides, MCS rates first. */
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
u8 m = smask[i];
ht_cap->mcs.rx_mask[i] &= ~m; /* turn off all masked bits */
/* Add back rates that are supported */
ht_cap->mcs.rx_mask[i] |= (m & scaps[i]);
}
/* Force removal of HT-40 capabilities? */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40);
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU);
/* Allow user to decrease AMPDU factor */
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) {
u8 n = sdata->u.mgd.ht_capa.ampdu_params_info
& IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n;
}
/* Allow the user to increase AMPDU density. */
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) {
u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density)
ht_cap->ampdu_density = n;
}
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap)
{
u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask);
u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask);
int i;
if (sdata->vif.type != NL80211_IFTYPE_STATION) {
return;
}
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
u8 m = smask[i];
ht_cap->mcs.rx_mask[i] &= ~m;
ht_cap->mcs.rx_mask[i] |= (m & scaps[i]);
}
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40);
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40);
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU);
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) {
u8 n = sdata->u.mgd.ht_capa.ampdu_params_info
& IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n;
}
if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) {
u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density)
ht_cap->ampdu_density = n;
}
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap)
{
struct ieee80211_ht_cap *ht_capa, *ht_capa_mask;
u8 *scaps, *smask;
int i;
if (!ht_cap->ht_supported)
return;
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
ht_capa = &sdata->u.mgd.ht_capa;
ht_capa_mask = &sdata->u.mgd.ht_capa_mask;
break;
case NL80211_IFTYPE_ADHOC:
ht_capa = &sdata->u.ibss.ht_capa;
ht_capa_mask = &sdata->u.ibss.ht_capa_mask;
break;
default:
WARN_ON_ONCE(1);
return;
}
scaps = (u8 *)(&ht_capa->mcs.rx_mask);
smask = (u8 *)(&ht_capa_mask->mcs.rx_mask);
/* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix
* the check in ieee80211_add_ht_ie.
*/
/* check for HT over-rides, MCS rates first. */
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
u8 m = smask[i];
ht_cap->mcs.rx_mask[i] &= ~m; /* turn off all masked bits */
/* Add back rates that are supported */
ht_cap->mcs.rx_mask[i] |= (m & scaps[i]);
}
/* Force removal of HT-40 capabilities? */
__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_SUP_WIDTH_20_40);
__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */
__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */
__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
IEEE80211_HT_CAP_MAX_AMSDU);
/* Allow user to decrease AMPDU factor */
if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) {
u8 n = ht_capa->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n;
}
/* Allow the user to increase AMPDU density. */
if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) {
u8 n = (ht_capa->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density)
ht_cap->ampdu_density = n;
}