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ath10k: fix beamformer VHT sounding dimensions capability 

Similarly to the VHT STS, this is supposed to be propagated by firmware.
In case it's not, use the default value, but as last resort.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Bartosz Markowski 2015-09-02 13:20:20 +02:00 committed by Kalle Valo
parent 707a0c811c
commit 0c6d6f2606
1 changed files with 19 additions and 2 deletions
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21
drivers/net/wireless/ath/ath10k/mac.c
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@ -4080,11 +4080,27 @@ static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
return nsts;
}
static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
{
int sound_dim = ar->vht_cap_info;
sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
sound_dim >>=IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
/* If the sounding dimension is not advertised by the firmware,
* let's use a default value of 1
*/
if (sound_dim == 0)
return 1;
return sound_dim;
}
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
int nsts;
int sound_dim;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
@ -4094,9 +4110,10 @@ static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);
value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
if (!value)
return 0;
@ -6831,7 +6848,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
val = ar->num_rf_chains - 1;
val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;