diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sta.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index dc74c16d36a..ce1ceac19c7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -1030,6 +1030,68 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap) EXPORT_SYMBOL(iwl_rxon_add_station); /** + * iwl_sta_init_bcast_lq - Initialize a bcast station's hardware rate table + * + * NOTE: Run REPLY_ADD_STA command to set up station table entry, before + * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, + * which requires station table entry to exist). + */ +static void iwl_sta_init_bcast_lq(struct iwl_priv *priv) +{ + int i, r; + struct iwl_link_quality_cmd link_cmd = { + .reserved1 = 0, + }; + u32 rate_flags; + + /* Set up the rate scaling to start at selected rate, fall back + * all the way down to 1M in IEEE order, and then spin on 1M */ + if (priv->band == IEEE80211_BAND_5GHZ) + r = IWL_RATE_6M_INDEX; + else + r = IWL_RATE_1M_INDEX; + + for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { + rate_flags = 0; + if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) + rate_flags |= RATE_MCS_CCK_MSK; + + rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << + RATE_MCS_ANT_POS; + + link_cmd.rs_table[i].rate_n_flags = + iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); + r = iwl_get_prev_ieee_rate(r); + } + + link_cmd.general_params.single_stream_ant_msk = + first_antenna(priv->hw_params.valid_tx_ant); + link_cmd.general_params.dual_stream_ant_msk = 3; + link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; + link_cmd.agg_params.agg_time_limit = + cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); + + /* Update the rate scaling for control frame Tx to AP */ + link_cmd.sta_id = priv->hw_params.bcast_sta_id; + + iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, + sizeof(link_cmd), &link_cmd, NULL); +} + + +/** + * iwl_add_bcast_station - add broadcast station into station table. + */ +void iwl_add_bcast_station(struct iwl_priv *priv) +{ + iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL); + + /* Set up default rate scaling table in device's station table */ + iwl_sta_init_bcast_lq(priv); +} +EXPORT_SYMBOL(iwl_add_bcast_station); + +/** * iwl_get_sta_id - Find station's index within station table * * If new IBSS station, create new entry in station table |