diff options
Diffstat (limited to 'net/mac80211/ieee80211.c')
| -rw-r--r-- | net/mac80211/ieee80211.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 4f8b6653e36..d6a97a68a62 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -34,6 +34,8 @@ #include "debugfs.h" #include "debugfs_netdev.h" +#define SUPP_MCS_SET_LEN 16 + /* * For seeing transmitted packets on monitor interfaces * we have a radiotap header too. @@ -563,6 +565,55 @@ int ieee80211_hw_config(struct ieee80211_local *local) return ret; } +/** + * ieee80211_hw_config_ht should be used only after legacy configuration + * has been determined, as ht configuration depends upon the hardware's + * HT abilities for a _specific_ band. + */ +int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht, + struct ieee80211_ht_info *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap) +{ + struct ieee80211_conf *conf = &local->hw.conf; + struct ieee80211_hw_mode *mode = conf->mode; + int i; + + /* HT is not supported */ + if (!mode->ht_info.ht_supported) { + conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; + return -EOPNOTSUPP; + } + + /* disable HT */ + if (!enable_ht) { + conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; + } else { + conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; + conf->ht_conf.cap = req_ht_cap->cap & mode->ht_info.cap; + conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS); + conf->ht_conf.cap |= + mode->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS; + conf->ht_bss_conf.primary_channel = + req_bss_cap->primary_channel; + conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap; + conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; + for (i = 0; i < SUPP_MCS_SET_LEN; i++) + conf->ht_conf.supp_mcs_set[i] = + mode->ht_info.supp_mcs_set[i] & + req_ht_cap->supp_mcs_set[i]; + + /* In STA mode, this gives us indication + * to the AP's mode of operation */ + conf->ht_conf.ht_supported = 1; + conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor; + conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density; + } + + local->ops->conf_ht(local_to_hw(local), &local->hw.conf); + + return 0; +} + void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |