mirror of https://gitee.com/openkylin/linux.git
iwlwifi: HT IE in probe request clean up
This patch cleans up the scan flow. This patch cleans up the insertion of the HT IE in the probe request. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Emmanuel Grumbach
John W. Linville
parent
cc2a8ea82e
commit
d1141dfb3a
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@ -99,7 +99,7 @@ __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
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return NULL;
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}
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static const struct ieee80211_supported_band *iwl4965_get_hw_mode(
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static const struct ieee80211_supported_band *iwl_get_hw_mode(
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struct iwl_priv *priv, enum ieee80211_band band)
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{
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return priv->hw->wiphy->bands[band];
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@ -1166,6 +1166,91 @@ static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
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return ret_rates;
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}
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#ifdef CONFIG_IWL4965_HT
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static void iwl4965_ht_conf(struct iwl_priv *priv,
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struct ieee80211_bss_conf *bss_conf)
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{
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struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
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struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
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struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
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IWL_DEBUG_MAC80211("enter: \n");
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iwl_conf->is_ht = bss_conf->assoc_ht;
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if (!iwl_conf->is_ht)
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return;
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priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
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if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
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iwl_conf->sgf |= 0x1;
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if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
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iwl_conf->sgf |= 0x2;
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iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
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iwl_conf->max_amsdu_size =
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!!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
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iwl_conf->supported_chan_width =
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!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
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iwl_conf->extension_chan_offset =
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ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
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/* If no above or below channel supplied disable FAT channel */
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if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE &&
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iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW)
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iwl_conf->supported_chan_width = 0;
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iwl_conf->tx_mimo_ps_mode =
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(u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
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memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
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iwl_conf->control_channel = ht_bss_conf->primary_channel;
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iwl_conf->tx_chan_width =
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!!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
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iwl_conf->ht_protection =
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ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
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iwl_conf->non_GF_STA_present =
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!!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
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IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
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IWL_DEBUG_MAC80211("leave\n");
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}
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static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
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u8 *pos, int *left)
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{
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struct ieee80211_ht_cap *ht_cap;
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if (!sband || !sband->ht_info.ht_supported)
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return;
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if (*left < sizeof(struct ieee80211_ht_cap))
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return;
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*pos++ = sizeof(struct ieee80211_ht_cap);
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ht_cap = (struct ieee80211_ht_cap *) pos;
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ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
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memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
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ht_cap->ampdu_params_info =
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(sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
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((sband->ht_info.ampdu_density << 2) &
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IEEE80211_HT_CAP_AMPDU_DENSITY);
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*left -= sizeof(struct ieee80211_ht_cap);
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}
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#else
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static inline void iwl4965_ht_conf(struct iwl_priv *priv,
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struct ieee80211_bss_conf *bss_conf)
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{
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}
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static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
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u8 *pos, int *left)
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{
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}
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#endif
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/**
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* iwl4965_fill_probe_req - fill in all required fields and IE for probe request
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*/
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@ -1177,10 +1262,8 @@ static u16 iwl4965_fill_probe_req(struct iwl_priv *priv,
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int len = 0;
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u8 *pos = NULL;
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u16 active_rates, ret_rates, cck_rates, active_rate_basic;
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#ifdef CONFIG_IWL4965_HT
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const struct ieee80211_supported_band *sband =
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iwl4965_get_hw_mode(priv, band);
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#endif /* CONFIG_IWL4965_HT */
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iwl_get_hw_mode(priv, band);
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/* Make sure there is enough space for the probe request,
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* two mandatory IEs and the data */
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@ -1263,24 +1346,19 @@ static u16 iwl4965_fill_probe_req(struct iwl_priv *priv,
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if (*pos > 0)
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len += 2 + *pos;
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#ifdef CONFIG_IWL4965_HT
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if (sband && sband->ht_info.ht_supported) {
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struct ieee80211_ht_cap *ht_cap;
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pos += (*pos) + 1;
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*pos++ = WLAN_EID_HT_CAPABILITY;
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*pos++ = sizeof(struct ieee80211_ht_cap);
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ht_cap = (struct ieee80211_ht_cap *)pos;
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ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
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memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
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ht_cap->ampdu_params_info =(sband->ht_info.ampdu_factor &
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IEEE80211_HT_CAP_AMPDU_FACTOR) |
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((sband->ht_info.ampdu_density << 2) &
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IEEE80211_HT_CAP_AMPDU_DENSITY);
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len += 2 + sizeof(struct ieee80211_ht_cap);
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}
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#endif /*CONFIG_IWL4965_HT */
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fill_end:
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/* fill in HT IE */
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left -= 2;
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if (left < 0)
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return 0;
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*pos++ = WLAN_EID_HT_CAPABILITY;
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*pos = 0;
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iwl_ht_cap_to_ie(sband, pos, &left);
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if (*pos > 0)
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len += 2 + *pos;
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return (u16)len;
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}
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@ -2146,7 +2224,7 @@ static void iwl4965_set_rate(struct iwl_priv *priv)
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struct ieee80211_rate *rate;
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int i;
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hw = iwl4965_get_hw_mode(priv, priv->band);
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hw = iwl_get_hw_mode(priv, priv->band);
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if (!hw) {
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IWL_ERROR("Failed to set rate: unable to get hw mode\n");
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return;
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@ -4360,7 +4438,7 @@ static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
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u16 active_dwell = 0;
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int added, i;
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sband = iwl4965_get_hw_mode(priv, band);
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sband = iwl_get_hw_mode(priv, band);
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if (!sband)
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return 0;
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@ -6328,64 +6406,6 @@ static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
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}
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#ifdef CONFIG_IWL4965_HT
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static void iwl4965_ht_conf(struct iwl_priv *priv,
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struct ieee80211_bss_conf *bss_conf)
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{
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struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
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struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
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struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
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IWL_DEBUG_MAC80211("enter: \n");
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iwl_conf->is_ht = bss_conf->assoc_ht;
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if (!iwl_conf->is_ht)
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return;
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priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
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if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
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iwl_conf->sgf |= 0x1;
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if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
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iwl_conf->sgf |= 0x2;
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iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
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iwl_conf->max_amsdu_size =
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!!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
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iwl_conf->supported_chan_width =
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!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
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iwl_conf->extension_chan_offset =
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ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
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/* If no above or below channel supplied disable FAT channel */
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if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE &&
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iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW)
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iwl_conf->supported_chan_width = 0;
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iwl_conf->tx_mimo_ps_mode =
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(u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
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memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
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iwl_conf->control_channel = ht_bss_conf->primary_channel;
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iwl_conf->tx_chan_width =
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!!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
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iwl_conf->ht_protection =
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ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
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iwl_conf->non_GF_STA_present =
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!!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
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IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
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IWL_DEBUG_MAC80211("leave\n");
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}
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#else
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static inline void iwl4965_ht_conf(struct iwl_priv *priv,
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struct ieee80211_bss_conf *bss_conf)
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{
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}
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#endif
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#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
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static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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