/******************************************************************************
*
- * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
}
EXPORT_SYMBOL(iwl_get_ra_sta_id);
+/* priv->sta_lock must be held */
static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
- IWL_ERR(priv, "ACTIVATE a non DRIVER active station %d\n",
- sta_id);
+ IWL_ERR(priv, "ACTIVATE a non DRIVER active station id %u addr %pM\n",
+ sta_id, priv->stations[sta_id].sta.sta.addr);
- priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
- IWL_DEBUG_ASSOC(priv, "Added STA to Ucode: %pM\n",
- priv->stations[sta_id].sta.sta.addr);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) {
+ IWL_DEBUG_ASSOC(priv,
+ "STA id %u addr %pM already present in uCode (according to driver)\n",
+ sta_id, priv->stations[sta_id].sta.sta.addr);
+ } else {
+ priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
+ IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n",
+ sta_id, priv->stations[sta_id].sta.sta.addr);
+ }
}
-static int iwl_add_sta_callback(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct sk_buff *skb)
+static void iwl_process_add_sta_resp(struct iwl_priv *priv,
+ struct iwl_addsta_cmd *addsta,
+ struct iwl_rx_packet *pkt,
+ bool sync)
{
- struct iwl_rx_packet *res = NULL;
- struct iwl_addsta_cmd *addsta =
- (struct iwl_addsta_cmd *)cmd->cmd.payload;
u8 sta_id = addsta->sta.sta_id;
+ unsigned long flags;
- if (!skb) {
- IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
- return 1;
- }
-
- res = (struct iwl_rx_packet *)skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- return 1;
+ pkt->hdr.flags);
+ return;
}
- switch (res->u.add_sta.status) {
+ IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n",
+ sta_id);
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ switch (pkt->u.add_sta.status) {
case ADD_STA_SUCCESS_MSK:
+ IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
iwl_sta_ucode_activate(priv, sta_id);
- /* fall through */
+ break;
+ case ADD_STA_NO_ROOM_IN_TABLE:
+ IWL_ERR(priv, "Adding station %d failed, no room in table.\n",
+ sta_id);
+ break;
+ case ADD_STA_NO_BLOCK_ACK_RESOURCE:
+ IWL_ERR(priv, "Adding station %d failed, no block ack resource.\n",
+ sta_id);
+ break;
+ case ADD_STA_MODIFY_NON_EXIST_STA:
+ IWL_ERR(priv, "Attempting to modify non-existing station %d \n",
+ sta_id);
+ break;
default:
- IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
- res->u.add_sta.status);
+ IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
+ pkt->u.add_sta.status);
break;
}
- /* We didn't cache the SKB; let the caller free it */
- return 1;
+ IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n",
+ priv->stations[sta_id].sta.mode ==
+ STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
+ sta_id, priv->stations[sta_id].sta.sta.addr);
+
+ /*
+ * XXX: The MAC address in the command buffer is often changed from
+ * the original sent to the device. That is, the MAC address
+ * written to the command buffer often is not the same MAC adress
+ * read from the command buffer when the command returns. This
+ * issue has not yet been resolved and this debugging is left to
+ * observe the problem.
+ */
+ IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n",
+ priv->stations[sta_id].sta.mode ==
+ STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
+ addsta->sta.addr);
+
+ /*
+ * Determine if we wanted to modify or add a station,
+ * if adding a station succeeded we have some more initialization
+ * to do when using station notification. TODO
+ */
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+static void iwl_add_sta_callback(struct iwl_priv *priv,
+ struct iwl_device_cmd *cmd,
+ struct iwl_rx_packet *pkt)
+{
+ struct iwl_addsta_cmd *addsta =
+ (struct iwl_addsta_cmd *)cmd->cmd.payload;
+
+ iwl_process_add_sta_resp(priv, addsta, pkt, false);
+
}
int iwl_send_add_sta(struct iwl_priv *priv,
struct iwl_addsta_cmd *sta, u8 flags)
{
- struct iwl_rx_packet *res = NULL;
+ struct iwl_rx_packet *pkt = NULL;
int ret = 0;
u8 data[sizeof(*sta)];
struct iwl_host_cmd cmd = {
if (ret || (flags & CMD_ASYNC))
return ret;
- res = (struct iwl_rx_packet *)cmd.reply_skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- ret = -EIO;
- }
-
if (ret == 0) {
- switch (res->u.add_sta.status) {
- case ADD_STA_SUCCESS_MSK:
- iwl_sta_ucode_activate(priv, sta->sta.sta_id);
- IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
- break;
- default:
- ret = -EIO;
- IWL_WARN(priv, "REPLY_ADD_STA failed\n");
- break;
- }
+ pkt = (struct iwl_rx_packet *)cmd.reply_page;
+ iwl_process_add_sta_resp(priv, sta, pkt, true);
}
-
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.reply_skb);
+ iwl_free_pages(priv, cmd.reply_page);
return ret;
}
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
+ IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
+ (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
+ "static" :
+ (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
+ "dynamic" : "disabled");
sta_flags = priv->stations[index].sta.station_flags;
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
- if (iwl_is_fat_tx_allowed(priv, sta_ht_inf))
- sta_flags |= STA_FLG_FAT_EN_MSK;
+ if (iwl_is_ht40_tx_allowed(priv, sta_ht_inf))
+ sta_flags |= STA_FLG_HT40_EN_MSK;
else
- sta_flags &= ~STA_FLG_FAT_EN_MSK;
+ sta_flags &= ~STA_FLG_HT40_EN_MSK;
priv->stations[index].sta.station_flags = sta_flags;
done:
}
EXPORT_SYMBOL(iwl_add_station);
-static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
+static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const u8 *addr)
{
unsigned long flags;
u8 sta_id = iwl_find_station(priv, addr);
spin_unlock_irqrestore(&priv->sta_lock, flags);
}
-static int iwl_remove_sta_callback(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct sk_buff *skb)
+static void iwl_remove_sta_callback(struct iwl_priv *priv,
+ struct iwl_device_cmd *cmd,
+ struct iwl_rx_packet *pkt)
{
- struct iwl_rx_packet *res = NULL;
struct iwl_rem_sta_cmd *rm_sta =
- (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
- const char *addr = rm_sta->addr;
-
- if (!skb) {
- IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n");
- return 1;
- }
+ (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
+ const u8 *addr = rm_sta->addr;
- res = (struct iwl_rx_packet *)skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
- res->hdr.flags);
- return 1;
+ pkt->hdr.flags);
+ return;
}
- switch (res->u.rem_sta.status) {
+ switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
iwl_sta_ucode_deactivate(priv, addr);
break;
IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
break;
}
-
- /* We didn't cache the SKB; let the caller free it */
- return 1;
}
static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
u8 flags)
{
- struct iwl_rx_packet *res = NULL;
+ struct iwl_rx_packet *pkt;
int ret;
struct iwl_rem_sta_cmd rm_sta_cmd;
if (ret || (flags & CMD_ASYNC))
return ret;
- res = (struct iwl_rx_packet *)cmd.reply_skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ pkt = (struct iwl_rx_packet *)cmd.reply_page;
+ if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
- res->hdr.flags);
+ pkt->hdr.flags);
ret = -EIO;
}
if (!ret) {
- switch (res->u.rem_sta.status) {
+ switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
iwl_sta_ucode_deactivate(priv, addr);
IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
break;
}
}
-
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.reply_skb);
+ iwl_free_pages(priv, cmd.reply_page);
return ret;
}
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
-EXPORT_SYMBOL(iwl_remove_station);
/**
* iwl_clear_stations_table - Clear the driver's station table
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.
+ * Set HT capabilities. It is ok to set this struct even if not using
+ * HT config: the priv->current_ht_config.is_ht flag will just be false
*/
- 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();
+ rcu_read_lock();
+ sta = ieee80211_find_sta(priv->vif, addr);
+ if (sta) {
+ memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
+ cur_ht_config = &ht_config;
}
+ rcu_read_unlock();
+ /* Add station to device's station table */
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 */
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_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
+ 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);
+
+/**
+ * iwl3945_add_bcast_station - add broadcast station into station table.
+ */
+void iwl3945_add_bcast_station(struct iwl_priv *priv)
+{
+ IWL_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
+ iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL);
+}
+EXPORT_SYMBOL(iwl3945_add_bcast_station);
+
+/**
* iwl_get_sta_id - Find station's index within station table
*
* If new IBSS station, create new entry in station table
IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
"Defaulting to broadcast...\n",
hdr->addr1);
- iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+ iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
return priv->hw_params.bcast_sta_id;
default:
}
EXPORT_SYMBOL(iwl_sta_rx_agg_stop);
-static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
+void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
{
unsigned long 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.sleep_tx_count = 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);
}
+EXPORT_SYMBOL(iwl_sta_modify_ps_wake);
-void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
+void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
{
- /* FIXME: need locking over ps_status ??? */
- u8 sta_id = iwl_find_station(priv, addr);
+ unsigned long flags;
- if (sta_id != IWL_INVALID_STATION) {
- u8 sta_awake = priv->stations[sta_id].
- ps_status == STA_PS_STATUS_WAKE;
+ 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 =
+ STA_MODIFY_SLEEP_TX_COUNT_MSK;
+ priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
- 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;
- }
- }
+ iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff