1198 строки
33 KiB
C
1198 строки
33 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
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*
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* Portions of this file are derived from the ipw3945 project, as well
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* as portions of the ieee80211 subsystem header files.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include <net/mac80211.h>
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#include <linux/etherdevice.h>
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#include "iwl-dev.h"
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#include "iwl-core.h"
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#include "iwl-sta.h"
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#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
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#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
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u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr)
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{
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int i;
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int start = 0;
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int ret = IWL_INVALID_STATION;
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unsigned long flags;
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if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) ||
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(priv->iw_mode == NL80211_IFTYPE_AP))
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start = IWL_STA_ID;
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if (is_broadcast_ether_addr(addr))
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return priv->hw_params.bcast_sta_id;
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spin_lock_irqsave(&priv->sta_lock, flags);
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for (i = start; i < priv->hw_params.max_stations; i++)
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if (priv->stations[i].used &&
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(!compare_ether_addr(priv->stations[i].sta.sta.addr,
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addr))) {
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ret = i;
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goto out;
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}
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IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n",
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addr, priv->num_stations);
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out:
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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return ret;
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}
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EXPORT_SYMBOL(iwl_find_station);
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int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
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{
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if (priv->iw_mode == NL80211_IFTYPE_STATION) {
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return IWL_AP_ID;
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} else {
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u8 *da = ieee80211_get_DA(hdr);
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return iwl_find_station(priv, da);
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}
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}
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EXPORT_SYMBOL(iwl_get_ra_sta_id);
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static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
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IWL_ERR(priv, "ACTIVATE a non DRIVER active station %d\n",
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sta_id);
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priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
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IWL_DEBUG_ASSOC(priv, "Added STA to Ucode: %pM\n",
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priv->stations[sta_id].sta.sta.addr);
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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}
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static void iwl_add_sta_callback(struct iwl_priv *priv,
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struct iwl_device_cmd *cmd,
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struct sk_buff *skb)
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{
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struct iwl_rx_packet *res = NULL;
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struct iwl_addsta_cmd *addsta =
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(struct iwl_addsta_cmd *)cmd->cmd.payload;
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u8 sta_id = addsta->sta.sta_id;
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if (!skb) {
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IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
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return;
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}
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res = (struct iwl_rx_packet *)skb->data;
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if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
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IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
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res->hdr.flags);
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return;
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}
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switch (res->u.add_sta.status) {
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case ADD_STA_SUCCESS_MSK:
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iwl_sta_ucode_activate(priv, sta_id);
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/* fall through */
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default:
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IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
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res->u.add_sta.status);
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break;
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}
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}
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int iwl_send_add_sta(struct iwl_priv *priv,
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struct iwl_addsta_cmd *sta, u8 flags)
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{
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struct iwl_rx_packet *res = NULL;
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int ret = 0;
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u8 data[sizeof(*sta)];
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struct iwl_host_cmd cmd = {
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.id = REPLY_ADD_STA,
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.flags = flags,
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.data = data,
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};
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if (flags & CMD_ASYNC)
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cmd.callback = iwl_add_sta_callback;
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else
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cmd.flags |= CMD_WANT_SKB;
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cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
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ret = iwl_send_cmd(priv, &cmd);
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if (ret || (flags & CMD_ASYNC))
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return ret;
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res = (struct iwl_rx_packet *)cmd.reply_skb->data;
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if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
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IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
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res->hdr.flags);
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ret = -EIO;
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}
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if (ret == 0) {
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switch (res->u.add_sta.status) {
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case ADD_STA_SUCCESS_MSK:
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iwl_sta_ucode_activate(priv, sta->sta.sta_id);
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IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
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break;
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default:
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ret = -EIO;
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IWL_WARN(priv, "REPLY_ADD_STA failed\n");
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break;
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}
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}
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priv->alloc_rxb_skb--;
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dev_kfree_skb_any(cmd.reply_skb);
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return ret;
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}
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EXPORT_SYMBOL(iwl_send_add_sta);
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static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
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struct ieee80211_sta_ht_cap *sta_ht_inf)
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{
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__le32 sta_flags;
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u8 mimo_ps_mode;
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if (!sta_ht_inf || !sta_ht_inf->ht_supported)
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goto done;
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mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
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sta_flags = priv->stations[index].sta.station_flags;
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sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
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switch (mimo_ps_mode) {
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case WLAN_HT_CAP_SM_PS_STATIC:
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sta_flags |= STA_FLG_MIMO_DIS_MSK;
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break;
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case WLAN_HT_CAP_SM_PS_DYNAMIC:
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sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
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break;
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case WLAN_HT_CAP_SM_PS_DISABLED:
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break;
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default:
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IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
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break;
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}
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sta_flags |= cpu_to_le32(
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(u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
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sta_flags |= cpu_to_le32(
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(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
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if (iwl_is_ht40_tx_allowed(priv, sta_ht_inf))
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sta_flags |= STA_FLG_HT40_EN_MSK;
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else
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sta_flags &= ~STA_FLG_HT40_EN_MSK;
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priv->stations[index].sta.station_flags = sta_flags;
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done:
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return;
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}
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/**
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* iwl_add_station - Add station to tables in driver and device
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*/
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u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags,
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struct ieee80211_sta_ht_cap *ht_info)
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{
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struct iwl_station_entry *station;
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unsigned long flags_spin;
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int i;
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int sta_id = IWL_INVALID_STATION;
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u16 rate;
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spin_lock_irqsave(&priv->sta_lock, flags_spin);
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if (is_ap)
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sta_id = IWL_AP_ID;
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else if (is_broadcast_ether_addr(addr))
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sta_id = priv->hw_params.bcast_sta_id;
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else
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for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
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if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
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addr)) {
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sta_id = i;
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break;
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}
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if (!priv->stations[i].used &&
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sta_id == IWL_INVALID_STATION)
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sta_id = i;
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}
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/* These two conditions have the same outcome, but keep them separate
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since they have different meanings */
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if (unlikely(sta_id == IWL_INVALID_STATION)) {
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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return sta_id;
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}
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if (priv->stations[sta_id].used &&
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!compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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return sta_id;
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}
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station = &priv->stations[sta_id];
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station->used = IWL_STA_DRIVER_ACTIVE;
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IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n",
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sta_id, addr);
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priv->num_stations++;
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/* Set up the REPLY_ADD_STA command to send to device */
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memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
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memcpy(station->sta.sta.addr, addr, ETH_ALEN);
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station->sta.mode = 0;
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station->sta.sta.sta_id = sta_id;
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station->sta.station_flags = 0;
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/* BCAST station and IBSS stations do not work in HT mode */
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if (sta_id != priv->hw_params.bcast_sta_id &&
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priv->iw_mode != NL80211_IFTYPE_ADHOC)
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iwl_set_ht_add_station(priv, sta_id, ht_info);
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/* 3945 only */
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rate = (priv->band == IEEE80211_BAND_5GHZ) ?
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IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP;
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/* Turn on both antennas for the station... */
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station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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/* Add station to device's station table */
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iwl_send_add_sta(priv, &station->sta, flags);
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return sta_id;
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}
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EXPORT_SYMBOL(iwl_add_station);
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static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
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{
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unsigned long flags;
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u8 sta_id = iwl_find_station(priv, addr);
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BUG_ON(sta_id == IWL_INVALID_STATION);
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IWL_DEBUG_ASSOC(priv, "Removed STA from Ucode: %pM\n", addr);
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spin_lock_irqsave(&priv->sta_lock, flags);
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/* Ucode must be active and driver must be non active */
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if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE)
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IWL_ERR(priv, "removed non active STA %d\n", sta_id);
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priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
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memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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}
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static void iwl_remove_sta_callback(struct iwl_priv *priv,
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struct iwl_device_cmd *cmd,
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struct sk_buff *skb)
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{
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struct iwl_rx_packet *res = NULL;
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struct iwl_rem_sta_cmd *rm_sta =
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(struct iwl_rem_sta_cmd *)cmd->cmd.payload;
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const char *addr = rm_sta->addr;
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if (!skb) {
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IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n");
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return;
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}
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res = (struct iwl_rx_packet *)skb->data;
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if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
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IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
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res->hdr.flags);
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return;
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}
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switch (res->u.rem_sta.status) {
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case REM_STA_SUCCESS_MSK:
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iwl_sta_ucode_deactivate(priv, addr);
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break;
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default:
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IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
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break;
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}
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}
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static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
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u8 flags)
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{
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struct iwl_rx_packet *res = NULL;
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int ret;
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struct iwl_rem_sta_cmd rm_sta_cmd;
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struct iwl_host_cmd cmd = {
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.id = REPLY_REMOVE_STA,
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.len = sizeof(struct iwl_rem_sta_cmd),
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.flags = flags,
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.data = &rm_sta_cmd,
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};
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memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
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rm_sta_cmd.num_sta = 1;
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memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN);
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if (flags & CMD_ASYNC)
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cmd.callback = iwl_remove_sta_callback;
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else
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cmd.flags |= CMD_WANT_SKB;
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ret = iwl_send_cmd(priv, &cmd);
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if (ret || (flags & CMD_ASYNC))
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return ret;
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res = (struct iwl_rx_packet *)cmd.reply_skb->data;
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if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
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IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
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res->hdr.flags);
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ret = -EIO;
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}
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if (!ret) {
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switch (res->u.rem_sta.status) {
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case REM_STA_SUCCESS_MSK:
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iwl_sta_ucode_deactivate(priv, addr);
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IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
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break;
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default:
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ret = -EIO;
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IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
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break;
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}
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}
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priv->alloc_rxb_skb--;
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dev_kfree_skb_any(cmd.reply_skb);
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return ret;
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}
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/**
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* iwl_remove_station - Remove driver's knowledge of station.
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*/
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int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
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{
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int sta_id = IWL_INVALID_STATION;
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int i, ret = -EINVAL;
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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if (is_ap)
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sta_id = IWL_AP_ID;
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else if (is_broadcast_ether_addr(addr))
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sta_id = priv->hw_params.bcast_sta_id;
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else
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for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
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if (priv->stations[i].used &&
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!compare_ether_addr(priv->stations[i].sta.sta.addr,
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addr)) {
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sta_id = i;
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break;
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}
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if (unlikely(sta_id == IWL_INVALID_STATION))
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goto out;
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IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
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sta_id, addr);
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if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
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IWL_ERR(priv, "Removing %pM but non DRIVER active\n",
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addr);
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goto out;
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}
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if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
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IWL_ERR(priv, "Removing %pM but non UCODE active\n",
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addr);
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goto out;
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}
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priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
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priv->num_stations--;
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BUG_ON(priv->num_stations < 0);
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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ret = iwl_send_remove_station(priv, addr, CMD_ASYNC);
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return ret;
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out:
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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return ret;
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}
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/**
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* iwl_clear_stations_table - Clear the driver's station table
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*
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* NOTE: This does not clear or otherwise alter the device's station table.
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*/
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void iwl_clear_stations_table(struct iwl_priv *priv)
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{
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unsigned long flags;
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int i;
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spin_lock_irqsave(&priv->sta_lock, flags);
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if (iwl_is_alive(priv) &&
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!test_bit(STATUS_EXIT_PENDING, &priv->status) &&
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iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL))
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IWL_ERR(priv, "Couldn't clear the station table\n");
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priv->num_stations = 0;
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memset(priv->stations, 0, sizeof(priv->stations));
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/* clean ucode key table bit map */
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priv->ucode_key_table = 0;
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/* keep track of static keys */
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for (i = 0; i < WEP_KEYS_MAX ; i++) {
|
|
if (priv->wep_keys[i].key_size)
|
|
set_bit(i, &priv->ucode_key_table);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
}
|
|
EXPORT_SYMBOL(iwl_clear_stations_table);
|
|
|
|
int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < STA_KEY_MAX_NUM; i++)
|
|
if (!test_and_set_bit(i, &priv->ucode_key_table))
|
|
return i;
|
|
|
|
return WEP_INVALID_OFFSET;
|
|
}
|
|
EXPORT_SYMBOL(iwl_get_free_ucode_key_index);
|
|
|
|
int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
|
|
{
|
|
int i, not_empty = 0;
|
|
u8 buff[sizeof(struct iwl_wep_cmd) +
|
|
sizeof(struct iwl_wep_key) * WEP_KEYS_MAX];
|
|
struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff;
|
|
size_t cmd_size = sizeof(struct iwl_wep_cmd);
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_WEPKEY,
|
|
.data = wep_cmd,
|
|
.flags = CMD_ASYNC,
|
|
};
|
|
|
|
memset(wep_cmd, 0, cmd_size +
|
|
(sizeof(struct iwl_wep_key) * WEP_KEYS_MAX));
|
|
|
|
for (i = 0; i < WEP_KEYS_MAX ; i++) {
|
|
wep_cmd->key[i].key_index = i;
|
|
if (priv->wep_keys[i].key_size) {
|
|
wep_cmd->key[i].key_offset = i;
|
|
not_empty = 1;
|
|
} else {
|
|
wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
|
|
}
|
|
|
|
wep_cmd->key[i].key_size = priv->wep_keys[i].key_size;
|
|
memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key,
|
|
priv->wep_keys[i].key_size);
|
|
}
|
|
|
|
wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
|
|
wep_cmd->num_keys = WEP_KEYS_MAX;
|
|
|
|
cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX;
|
|
|
|
cmd.len = cmd_size;
|
|
|
|
if (not_empty || send_if_empty)
|
|
return iwl_send_cmd(priv, &cmd);
|
|
else
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_static_wepkey_cmd);
|
|
|
|
int iwl_remove_default_wep_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf)
|
|
{
|
|
int ret;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
|
|
keyconf->keyidx);
|
|
|
|
if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table))
|
|
IWL_ERR(priv, "index %d not used in uCode key table.\n",
|
|
keyconf->keyidx);
|
|
|
|
priv->default_wep_key--;
|
|
memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0]));
|
|
if (iwl_is_rfkill(priv)) {
|
|
IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
return 0;
|
|
}
|
|
ret = iwl_send_static_wepkey_cmd(priv, 1);
|
|
IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
|
|
keyconf->keyidx, ret);
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_remove_default_wep_key);
|
|
|
|
int iwl_set_default_wep_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf)
|
|
{
|
|
int ret;
|
|
unsigned long flags;
|
|
|
|
if (keyconf->keylen != WEP_KEY_LEN_128 &&
|
|
keyconf->keylen != WEP_KEY_LEN_64) {
|
|
IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen);
|
|
return -EINVAL;
|
|
}
|
|
|
|
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
keyconf->hw_key_idx = HW_KEY_DEFAULT;
|
|
priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->default_wep_key++;
|
|
|
|
if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table))
|
|
IWL_ERR(priv, "index %d already used in uCode key table.\n",
|
|
keyconf->keyidx);
|
|
|
|
priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
|
|
memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key,
|
|
keyconf->keylen);
|
|
|
|
ret = iwl_send_static_wepkey_cmd(priv, 0);
|
|
IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n",
|
|
keyconf->keylen, keyconf->keyidx, ret);
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_default_wep_key);
|
|
|
|
static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
unsigned long flags;
|
|
__le16 key_flags = 0;
|
|
int ret;
|
|
|
|
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
|
|
key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
|
|
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
|
|
key_flags &= ~STA_KEY_FLG_INVALID;
|
|
|
|
if (keyconf->keylen == WEP_KEY_LEN_128)
|
|
key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
|
|
|
|
if (sta_id == priv->hw_params.bcast_sta_id)
|
|
key_flags |= STA_KEY_MULTICAST_MSK;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
|
|
priv->stations[sta_id].keyinfo.alg = keyconf->alg;
|
|
priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
|
|
priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
|
|
|
|
memcpy(priv->stations[sta_id].keyinfo.key,
|
|
keyconf->key, keyconf->keylen);
|
|
|
|
memcpy(&priv->stations[sta_id].sta.key.key[3],
|
|
keyconf->key, keyconf->keylen);
|
|
|
|
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
|
|
== STA_KEY_FLG_NO_ENC)
|
|
priv->stations[sta_id].sta.key.key_offset =
|
|
iwl_get_free_ucode_key_index(priv);
|
|
/* else, we are overriding an existing key => no need to allocated room
|
|
* in uCode. */
|
|
|
|
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
|
|
"no space for a new key");
|
|
|
|
priv->stations[sta_id].sta.key.key_flags = key_flags;
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
|
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
unsigned long flags;
|
|
__le16 key_flags = 0;
|
|
int ret;
|
|
|
|
key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
|
|
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
|
|
key_flags &= ~STA_KEY_FLG_INVALID;
|
|
|
|
if (sta_id == priv->hw_params.bcast_sta_id)
|
|
key_flags |= STA_KEY_MULTICAST_MSK;
|
|
|
|
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations[sta_id].keyinfo.alg = keyconf->alg;
|
|
priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
|
|
|
|
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
|
|
keyconf->keylen);
|
|
|
|
memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
|
|
keyconf->keylen);
|
|
|
|
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
|
|
== STA_KEY_FLG_NO_ENC)
|
|
priv->stations[sta_id].sta.key.key_offset =
|
|
iwl_get_free_ucode_key_index(priv);
|
|
/* else, we are overriding an existing key => no need to allocated room
|
|
* in uCode. */
|
|
|
|
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
|
|
"no space for a new key");
|
|
|
|
priv->stations[sta_id].sta.key.key_flags = key_flags;
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
|
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
__le16 key_flags = 0;
|
|
|
|
key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
|
|
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
|
|
key_flags &= ~STA_KEY_FLG_INVALID;
|
|
|
|
if (sta_id == priv->hw_params.bcast_sta_id)
|
|
key_flags |= STA_KEY_MULTICAST_MSK;
|
|
|
|
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
|
|
priv->stations[sta_id].keyinfo.alg = keyconf->alg;
|
|
priv->stations[sta_id].keyinfo.keylen = 16;
|
|
|
|
if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
|
|
== STA_KEY_FLG_NO_ENC)
|
|
priv->stations[sta_id].sta.key.key_offset =
|
|
iwl_get_free_ucode_key_index(priv);
|
|
/* else, we are overriding an existing key => no need to allocated room
|
|
* in uCode. */
|
|
|
|
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
|
|
"no space for a new key");
|
|
|
|
priv->stations[sta_id].sta.key.key_flags = key_flags;
|
|
|
|
|
|
/* This copy is acutally not needed: we get the key with each TX */
|
|
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
|
|
|
|
memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void iwl_update_tkip_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
const u8 *addr, u32 iv32, u16 *phase1key)
|
|
{
|
|
u8 sta_id = IWL_INVALID_STATION;
|
|
unsigned long flags;
|
|
int i;
|
|
|
|
sta_id = iwl_find_station(priv, addr);
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
|
|
addr);
|
|
return;
|
|
}
|
|
|
|
if (iwl_scan_cancel(priv)) {
|
|
/* cancel scan failed, just live w/ bad key and rely
|
|
briefly on SW decryption */
|
|
return;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
|
|
priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
|
|
|
|
for (i = 0; i < 5; i++)
|
|
priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
|
|
cpu_to_le16(phase1key[i]);
|
|
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
|
iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
}
|
|
EXPORT_SYMBOL(iwl_update_tkip_key);
|
|
|
|
int iwl_remove_dynamic_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
u16 key_flags;
|
|
u8 keyidx;
|
|
|
|
priv->key_mapping_key--;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags);
|
|
keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
|
|
|
|
IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n",
|
|
keyconf->keyidx, sta_id);
|
|
|
|
if (keyconf->keyidx != keyidx) {
|
|
/* We need to remove a key with index different that the one
|
|
* in the uCode. This means that the key we need to remove has
|
|
* been replaced by another one with different index.
|
|
* Don't do anything and return ok
|
|
*/
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
|
|
IWL_WARN(priv, "Removing wrong key %d 0x%x\n",
|
|
keyconf->keyidx, key_flags);
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset,
|
|
&priv->ucode_key_table))
|
|
IWL_ERR(priv, "index %d not used in uCode key table.\n",
|
|
priv->stations[sta_id].sta.key.key_offset);
|
|
memset(&priv->stations[sta_id].keyinfo, 0,
|
|
sizeof(struct iwl_hw_key));
|
|
memset(&priv->stations[sta_id].sta.key, 0,
|
|
sizeof(struct iwl4965_keyinfo));
|
|
priv->stations[sta_id].sta.key.key_flags =
|
|
STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
|
|
priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
|
if (iwl_is_rfkill(priv)) {
|
|
IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n");
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
return 0;
|
|
}
|
|
ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_remove_dynamic_key);
|
|
|
|
int iwl_set_dynamic_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf, u8 sta_id)
|
|
{
|
|
int ret;
|
|
|
|
priv->key_mapping_key++;
|
|
keyconf->hw_key_idx = HW_KEY_DYNAMIC;
|
|
|
|
switch (keyconf->alg) {
|
|
case ALG_CCMP:
|
|
ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
case ALG_TKIP:
|
|
ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
case ALG_WEP:
|
|
ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
default:
|
|
IWL_ERR(priv,
|
|
"Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
|
|
keyconf->alg, keyconf->keylen, keyconf->keyidx,
|
|
sta_id, ret);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_dynamic_key);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
static void iwl_dump_lq_cmd(struct iwl_priv *priv,
|
|
struct iwl_link_quality_cmd *lq)
|
|
{
|
|
int i;
|
|
IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id);
|
|
IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n",
|
|
lq->general_params.single_stream_ant_msk,
|
|
lq->general_params.dual_stream_ant_msk);
|
|
|
|
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
|
|
IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n",
|
|
i, lq->rs_table[i].rate_n_flags);
|
|
}
|
|
#else
|
|
static inline void iwl_dump_lq_cmd(struct iwl_priv *priv,
|
|
struct iwl_link_quality_cmd *lq)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
int iwl_send_lq_cmd(struct iwl_priv *priv,
|
|
struct iwl_link_quality_cmd *lq, u8 flags)
|
|
{
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_TX_LINK_QUALITY_CMD,
|
|
.len = sizeof(struct iwl_link_quality_cmd),
|
|
.flags = flags,
|
|
.data = lq,
|
|
};
|
|
|
|
if ((lq->sta_id == 0xFF) &&
|
|
(priv->iw_mode == NL80211_IFTYPE_ADHOC))
|
|
return -EINVAL;
|
|
|
|
if (lq->sta_id == 0xFF)
|
|
lq->sta_id = IWL_AP_ID;
|
|
|
|
iwl_dump_lq_cmd(priv, lq);
|
|
|
|
if (iwl_is_associated(priv) && priv->assoc_station_added)
|
|
return iwl_send_cmd(priv, &cmd);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_lq_cmd);
|
|
|
|
/**
|
|
* iwl_sta_init_lq - Initialize a station's hardware rate table
|
|
*
|
|
* The uCode's station table contains a table of fallback rates
|
|
* for automatic fallback during transmission.
|
|
*
|
|
* NOTE: This sets up a default set of values. These will be replaced later
|
|
* if the driver's iwl-agn-rs rate scaling algorithm is used, instead of
|
|
* rc80211_simple.
|
|
*
|
|
* 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_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap)
|
|
{
|
|
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 (is_ap)
|
|
r = IWL_RATE_54M_INDEX;
|
|
else 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 = is_ap ? IWL_AP_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_rxon_add_station - add station into station table.
|
|
*
|
|
* there is only one AP station with id= IWL_AP_ID
|
|
* NOTE: mutex must be held before calling this function
|
|
*/
|
|
int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
|
|
{
|
|
struct ieee80211_sta *sta;
|
|
struct ieee80211_sta_ht_cap ht_config;
|
|
struct ieee80211_sta_ht_cap *cur_ht_config = NULL;
|
|
u8 sta_id;
|
|
|
|
/* Add station to device's station table */
|
|
|
|
/*
|
|
* XXX: This check is definitely not correct, if we're an AP
|
|
* it'll always be false which is not what we want, but
|
|
* it doesn't look like iwlagn is prepared to be an HT
|
|
* AP anyway.
|
|
*/
|
|
if (priv->current_ht_config.is_ht) {
|
|
rcu_read_lock();
|
|
sta = ieee80211_find_sta(priv->hw, addr);
|
|
if (sta) {
|
|
memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
|
|
cur_ht_config = &ht_config;
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
sta_id = iwl_add_station(priv, addr, is_ap, CMD_SYNC, cur_ht_config);
|
|
|
|
/* Set up default rate scaling table in device's station table */
|
|
iwl_sta_init_lq(priv, addr, is_ap);
|
|
|
|
return sta_id;
|
|
}
|
|
EXPORT_SYMBOL(iwl_rxon_add_station);
|
|
|
|
/**
|
|
* iwl_get_sta_id - Find station's index within station table
|
|
*
|
|
* If new IBSS station, create new entry in station table
|
|
*/
|
|
int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
|
|
{
|
|
int sta_id;
|
|
__le16 fc = hdr->frame_control;
|
|
|
|
/* If this frame is broadcast or management, use broadcast station id */
|
|
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
switch (priv->iw_mode) {
|
|
|
|
/* If we are a client station in a BSS network, use the special
|
|
* AP station entry (that's the only station we communicate with) */
|
|
case NL80211_IFTYPE_STATION:
|
|
return IWL_AP_ID;
|
|
|
|
/* If we are an AP, then find the station, or use BCAST */
|
|
case NL80211_IFTYPE_AP:
|
|
sta_id = iwl_find_station(priv, hdr->addr1);
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
/* If this frame is going out to an IBSS network, find the station,
|
|
* or create a new station table entry */
|
|
case NL80211_IFTYPE_ADHOC:
|
|
sta_id = iwl_find_station(priv, hdr->addr1);
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
|
|
/* Create new station table entry */
|
|
sta_id = iwl_add_station(priv, hdr->addr1, false,
|
|
CMD_ASYNC, NULL);
|
|
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
|
|
IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
|
|
"Defaulting to broadcast...\n",
|
|
hdr->addr1);
|
|
iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
default:
|
|
IWL_WARN(priv, "Unknown mode of operation: %d\n",
|
|
priv->iw_mode);
|
|
return priv->hw_params.bcast_sta_id;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_get_sta_id);
|
|
|
|
/**
|
|
* iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
|
|
*/
|
|
void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
|
|
{
|
|
unsigned long flags;
|
|
|
|
/* Remove "disable" flag, to enable Tx for this TID */
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
|
|
priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
}
|
|
EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid);
|
|
|
|
int iwl_sta_rx_agg_start(struct iwl_priv *priv,
|
|
const u8 *addr, int tid, u16 ssn)
|
|
{
|
|
unsigned long flags;
|
|
int sta_id;
|
|
|
|
sta_id = iwl_find_station(priv, addr);
|
|
if (sta_id == IWL_INVALID_STATION)
|
|
return -ENXIO;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations[sta_id].sta.station_flags_msk = 0;
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
|
|
priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
|
|
priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
|
|
CMD_ASYNC);
|
|
}
|
|
EXPORT_SYMBOL(iwl_sta_rx_agg_start);
|
|
|
|
int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid)
|
|
{
|
|
unsigned long flags;
|
|
int sta_id;
|
|
|
|
sta_id = iwl_find_station(priv, addr);
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
|
|
return -ENXIO;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations[sta_id].sta.station_flags_msk = 0;
|
|
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
|
|
priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
|
|
CMD_ASYNC);
|
|
}
|
|
EXPORT_SYMBOL(iwl_sta_rx_agg_stop);
|
|
|
|
static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
|
|
priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
|
|
priv->stations[sta_id].sta.sta.modify_mask = 0;
|
|
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
}
|
|
|
|
void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
|
|
{
|
|
/* FIXME: need locking over ps_status ??? */
|
|
u8 sta_id = iwl_find_station(priv, addr);
|
|
|
|
if (sta_id != IWL_INVALID_STATION) {
|
|
u8 sta_awake = priv->stations[sta_id].
|
|
ps_status == STA_PS_STATUS_WAKE;
|
|
|
|
if (sta_awake && ps_bit)
|
|
priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
|
|
else if (!sta_awake && !ps_bit) {
|
|
iwl_sta_modify_ps_wake(priv, sta_id);
|
|
priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
|
|
}
|
|
}
|
|
}
|
|
|