--- /dev/null
+/*
+ * Marvell Wireless LAN device driver: AP event handling
+ *
+ * Copyright (C) 2012-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "main.h"
+#include "11n.h"
+
+
+
+
+/*
+ * This function handles AP interface specific events generated by firmware.
+ *
+ * Event specific routines are called by this function based
+ * upon the generated event cause.
+ *
+ *
+ * Events supported for AP -
+ * - EVENT_UAP_STA_ASSOC
+ * - EVENT_UAP_STA_DEAUTH
+ * - EVENT_UAP_BSS_ACTIVE
+ * - EVENT_UAP_BSS_START
+ * - EVENT_UAP_BSS_IDLE
+ * - EVENT_UAP_MIC_COUNTERMEASURES:
+ */
+int mwifiex_process_uap_event(struct mwifiex_private *priv)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ int len, i;
+ u32 eventcause = adapter->event_cause;
+ struct station_info sinfo;
+ struct mwifiex_assoc_event *event;
+ struct mwifiex_sta_node *node;
+ u8 *deauth_mac;
+ struct host_cmd_ds_11n_batimeout *ba_timeout;
+ u16 ctrl;
+
+ switch (eventcause) {
+ case EVENT_UAP_STA_ASSOC:
+ memset(&sinfo, 0, sizeof(sinfo));
+ event = (struct mwifiex_assoc_event *)
+ (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
+ if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
+ len = -1;
+
+ if (ieee80211_is_assoc_req(event->frame_control))
+ len = 0;
+ else if (ieee80211_is_reassoc_req(event->frame_control))
+ /* There will be ETH_ALEN bytes of
+ * current_ap_addr before the re-assoc ies.
+ */
+ len = ETH_ALEN;
+
+ if (len != -1) {
+ sinfo.assoc_req_ies = &event->data[len];
+ len = (u8 *)sinfo.assoc_req_ies -
+ (u8 *)&event->frame_control;
+ sinfo.assoc_req_ies_len =
+ le16_to_cpu(event->len) - (u16)len;
+ }
+ }
+ cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
+ GFP_KERNEL);
+
+ node = mwifiex_add_sta_entry(priv, event->sta_addr);
+ if (!node) {
+ dev_warn(adapter->dev,
+ "could not create station entry!\n");
+ return -1;
+ }
+
+ if (!priv->ap_11n_enabled)
+ break;
+
+ mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
+ sinfo.assoc_req_ies_len, node);
+
+ for (i = 0; i < MAX_NUM_TID; i++) {
+ if (node->is_11n_enabled)
+ node->ampdu_sta[i] =
+ priv->aggr_prio_tbl[i].ampdu_user;
+ else
+ node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
+ }
+ memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
+ break;
+ case EVENT_UAP_STA_DEAUTH:
+ deauth_mac = adapter->event_body +
+ MWIFIEX_UAP_EVENT_EXTRA_HEADER;
+ cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
+
+ if (priv->ap_11n_enabled) {
+ mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
+ mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
+ }
+ mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
+ mwifiex_del_sta_entry(priv, deauth_mac);
+ break;
+ case EVENT_UAP_BSS_IDLE:
+ priv->media_connected = false;
+ if (netif_carrier_ok(priv->netdev))
+ netif_carrier_off(priv->netdev);
+ mwifiex_stop_net_dev_queue(priv->netdev, adapter);
+
+ mwifiex_clean_txrx(priv);
+ mwifiex_del_all_sta_list(priv);
+ break;
+ case EVENT_UAP_BSS_ACTIVE:
+ priv->media_connected = true;
+ if (!netif_carrier_ok(priv->netdev))
+ netif_carrier_on(priv->netdev);
+ mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
+ break;
+ case EVENT_UAP_BSS_START:
+ dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+ memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
+ ETH_ALEN);
+ if (priv->hist_data)
+ mwifiex_hist_data_reset(priv);
+ break;
+ case EVENT_UAP_MIC_COUNTERMEASURES:
+ /* For future development */
+ dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+ break;
+ case EVENT_AMSDU_AGGR_CTRL:
+ ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
+ dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
+
+ if (priv->media_connected) {
+ adapter->tx_buf_size =
+ min_t(u16, adapter->curr_tx_buf_size, ctrl);
+ dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
+ adapter->tx_buf_size);
+ }
+ break;
+ case EVENT_ADDBA:
+ dev_dbg(adapter->dev, "event: ADDBA Request\n");
+ if (priv->media_connected)
+ mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
+ HostCmd_ACT_GEN_SET, 0,
+ adapter->event_body, false);
+ break;
+ case EVENT_DELBA:
+ dev_dbg(adapter->dev, "event: DELBA Request\n");
+ if (priv->media_connected)
+ mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
+ break;
+ case EVENT_BA_STREAM_TIEMOUT:
+ dev_dbg(adapter->dev, "event: BA Stream timeout\n");
+ if (priv->media_connected) {
+ ba_timeout = (void *)adapter->event_body;
+ mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
+ }
+ break;
+ case EVENT_EXT_SCAN_REPORT:
+ dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
+ if (adapter->ext_scan)
+ return mwifiex_handle_event_ext_scan_report(priv,
+ adapter->event_skb->data);
+ break;
+ case EVENT_TX_STATUS_REPORT:
+ dev_dbg(adapter->dev, "event: TX_STATUS Report\n");
+ mwifiex_parse_tx_status_event(priv, adapter->event_body);
+ break;
+ case EVENT_PS_SLEEP:
+ dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
+
+ adapter->ps_state = PS_STATE_PRE_SLEEP;
+
+ mwifiex_check_ps_cond(adapter);
+ break;
+
+ case EVENT_PS_AWAKE:
+ dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
+ if (!adapter->pps_uapsd_mode &&
+ priv->media_connected && adapter->sleep_period.period) {
+ adapter->pps_uapsd_mode = true;
+ dev_dbg(adapter->dev,
+ "event: PPS/UAPSD mode activated\n");
+ }
+ adapter->tx_lock_flag = false;
+ if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
+ if (mwifiex_check_last_packet_indication(priv)) {
+ if (adapter->data_sent) {
+ adapter->ps_state = PS_STATE_AWAKE;
+ adapter->pm_wakeup_card_req = false;
+ adapter->pm_wakeup_fw_try = false;
+ break;
+ }
+ if (!mwifiex_send_null_packet
+ (priv,
+ MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
+ MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
+ adapter->ps_state =
+ PS_STATE_SLEEP;
+ return 0;
+ }
+ }
+ adapter->ps_state = PS_STATE_AWAKE;
+ adapter->pm_wakeup_card_req = false;
+ adapter->pm_wakeup_fw_try = false;
+ break;
+
+ case EVENT_CHANNEL_REPORT_RDY:
+ dev_dbg(adapter->dev, "event: Channel Report\n");
+ mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
+ break;
+ case EVENT_RADAR_DETECTED:
+ dev_dbg(adapter->dev, "event: Radar detected\n");
+ mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
+ break;
+ default:
+ dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
+ eventcause);
+ break;
+ }
+
+ return 0;
+}
+
+/* This function deletes station entry from associated station list.
+ * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream
+ * tables created for this station are deleted.
+ */
+void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
+ struct mwifiex_sta_node *node)
+{
+ if (priv->ap_11n_enabled && node->is_11n_enabled) {
+ mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr);
+ mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr);
+ }
+ mwifiex_del_sta_entry(priv, node->mac_addr);
+
+ return;
+}
Code Review / kvmfornfv.git / blobdiff