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iwlwifi: publish Tx STBC support in VHT

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If the device is MIMO and VHT capable it supports Tx STBC.
Unlike HT, any chip that supports VHT also support STBC so
no need for a config parameter.
Using num_of_ants multiple times warranted caching it.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Eyal Shapira 2013-11-12 22:40:40 +02:00 committed by Emmanuel Grumbach
parent 48e6de6117
commit 5f7a6f9b25
1 changed files with 6 additions and 2 deletions
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8
drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
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@ -263,7 +263,8 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
struct ieee80211_sta_vht_cap *vht_cap)
{
int bf_sts_cap = num_of_ant(data->valid_rx_ant) - 1;
int num_ants = num_of_ant(data->valid_rx_ant);
int bf_sts_cap = num_ants - 1;
vht_cap->vht_supported = true;
@ -273,6 +274,9 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
bf_sts_cap << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
if (num_ants > 1)
vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
if (iwlwifi_mod_params.amsdu_size_8K)
vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
@ -286,7 +290,7 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
if (num_of_ant(data->valid_rx_ant) == 1 ||
if (num_ants == 1 ||
cfg->rx_with_siso_diversity) {
vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;