357 lines
10 KiB
C
357 lines
10 KiB
C
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/*
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* Marvell Wireless LAN device driver: AP event handling
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*
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* Copyright (C) 2012-2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include "decl.h"
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#include "main.h"
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#include "11n.h"
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#define MWIFIEX_BSS_START_EVT_FIX_SIZE 12
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static int mwifiex_check_uap_capabilties(struct mwifiex_private *priv,
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struct sk_buff *event)
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{
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int evt_len;
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u8 *curr;
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u16 tlv_len;
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struct mwifiex_ie_types_data *tlv_hdr;
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struct ieee_types_wmm_parameter *wmm_param_ie = NULL;
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int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK;
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priv->wmm_enabled = false;
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skb_pull(event, MWIFIEX_BSS_START_EVT_FIX_SIZE);
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evt_len = event->len;
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curr = event->data;
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mwifiex_dbg_dump(priv->adapter, EVT_D, "uap capabilties:",
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event->data, event->len);
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skb_push(event, MWIFIEX_BSS_START_EVT_FIX_SIZE);
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while ((evt_len >= sizeof(tlv_hdr->header))) {
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tlv_hdr = (struct mwifiex_ie_types_data *)curr;
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tlv_len = le16_to_cpu(tlv_hdr->header.len);
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if (evt_len < tlv_len + sizeof(tlv_hdr->header))
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break;
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switch (le16_to_cpu(tlv_hdr->header.type)) {
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case WLAN_EID_HT_CAPABILITY:
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priv->ap_11n_enabled = true;
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break;
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case WLAN_EID_VHT_CAPABILITY:
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priv->ap_11ac_enabled = true;
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break;
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case WLAN_EID_VENDOR_SPECIFIC:
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/* Point the regular IEEE IE 2 bytes into the Marvell IE
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* and setup the IEEE IE type and length byte fields
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*/
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wmm_param_ie = (void *)(curr + 2);
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wmm_param_ie->vend_hdr.len = (u8)tlv_len;
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wmm_param_ie->vend_hdr.element_id =
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WLAN_EID_VENDOR_SPECIFIC;
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mwifiex_dbg(priv->adapter, EVENT,
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"info: check uap capabilities:\t"
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"wmm parameter set count: %d\n",
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wmm_param_ie->qos_info_bitmap & mask);
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mwifiex_wmm_setup_ac_downgrade(priv);
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priv->wmm_enabled = true;
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mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie);
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break;
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default:
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break;
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}
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curr += (tlv_len + sizeof(tlv_hdr->header));
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evt_len -= (tlv_len + sizeof(tlv_hdr->header));
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}
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return 0;
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}
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/*
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* This function handles AP interface specific events generated by firmware.
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*
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* Event specific routines are called by this function based
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* upon the generated event cause.
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*
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*
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* Events supported for AP -
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* - EVENT_UAP_STA_ASSOC
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* - EVENT_UAP_STA_DEAUTH
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* - EVENT_UAP_BSS_ACTIVE
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* - EVENT_UAP_BSS_START
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* - EVENT_UAP_BSS_IDLE
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* - EVENT_UAP_MIC_COUNTERMEASURES:
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*/
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int mwifiex_process_uap_event(struct mwifiex_private *priv)
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{
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struct mwifiex_adapter *adapter = priv->adapter;
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int len, i;
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u32 eventcause = adapter->event_cause;
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struct station_info *sinfo;
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struct mwifiex_assoc_event *event;
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struct mwifiex_sta_node *node;
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u8 *deauth_mac;
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struct host_cmd_ds_11n_batimeout *ba_timeout;
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u16 ctrl;
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switch (eventcause) {
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case EVENT_UAP_STA_ASSOC:
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sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
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if (!sinfo)
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return -ENOMEM;
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event = (struct mwifiex_assoc_event *)
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(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
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if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
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len = -1;
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if (ieee80211_is_assoc_req(event->frame_control))
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len = 0;
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else if (ieee80211_is_reassoc_req(event->frame_control))
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/* There will be ETH_ALEN bytes of
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* current_ap_addr before the re-assoc ies.
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*/
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len = ETH_ALEN;
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if (len != -1) {
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sinfo->assoc_req_ies = &event->data[len];
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len = (u8 *)sinfo->assoc_req_ies -
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(u8 *)&event->frame_control;
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sinfo->assoc_req_ies_len =
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le16_to_cpu(event->len) - (u16)len;
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}
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}
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cfg80211_new_sta(priv->netdev, event->sta_addr, sinfo,
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GFP_KERNEL);
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node = mwifiex_add_sta_entry(priv, event->sta_addr);
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if (!node) {
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mwifiex_dbg(adapter, ERROR,
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"could not create station entry!\n");
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kfree(sinfo);
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return -1;
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}
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if (!priv->ap_11n_enabled) {
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kfree(sinfo);
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break;
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}
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mwifiex_set_sta_ht_cap(priv, sinfo->assoc_req_ies,
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sinfo->assoc_req_ies_len, node);
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for (i = 0; i < MAX_NUM_TID; i++) {
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if (node->is_11n_enabled)
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node->ampdu_sta[i] =
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priv->aggr_prio_tbl[i].ampdu_user;
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else
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node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
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}
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memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
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kfree(sinfo);
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break;
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case EVENT_UAP_STA_DEAUTH:
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deauth_mac = adapter->event_body +
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MWIFIEX_UAP_EVENT_EXTRA_HEADER;
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cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
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if (priv->ap_11n_enabled) {
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mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
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mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
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}
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mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
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mwifiex_del_sta_entry(priv, deauth_mac);
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break;
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case EVENT_UAP_BSS_IDLE:
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priv->media_connected = false;
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priv->port_open = false;
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mwifiex_clean_txrx(priv);
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mwifiex_del_all_sta_list(priv);
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break;
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case EVENT_UAP_BSS_ACTIVE:
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priv->media_connected = true;
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priv->port_open = true;
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break;
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case EVENT_UAP_BSS_START:
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mwifiex_dbg(adapter, EVENT,
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"AP EVENT: event id: %#x\n", eventcause);
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priv->port_open = false;
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memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
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ETH_ALEN);
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if (priv->hist_data)
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mwifiex_hist_data_reset(priv);
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mwifiex_check_uap_capabilties(priv, adapter->event_skb);
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break;
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case EVENT_UAP_MIC_COUNTERMEASURES:
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/* For future development */
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mwifiex_dbg(adapter, EVENT,
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"AP EVENT: event id: %#x\n", eventcause);
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break;
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case EVENT_AMSDU_AGGR_CTRL:
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ctrl = get_unaligned_le16(adapter->event_body);
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mwifiex_dbg(adapter, EVENT,
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"event: AMSDU_AGGR_CTRL %d\n", ctrl);
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if (priv->media_connected) {
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adapter->tx_buf_size =
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min_t(u16, adapter->curr_tx_buf_size, ctrl);
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mwifiex_dbg(adapter, EVENT,
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"event: tx_buf_size %d\n",
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adapter->tx_buf_size);
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}
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break;
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case EVENT_ADDBA:
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mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
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if (priv->media_connected)
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mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
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HostCmd_ACT_GEN_SET, 0,
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adapter->event_body, false);
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break;
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case EVENT_DELBA:
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mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
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if (priv->media_connected)
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mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
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break;
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case EVENT_BA_STREAM_TIEMOUT:
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mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
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if (priv->media_connected) {
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ba_timeout = (void *)adapter->event_body;
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mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
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}
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break;
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case EVENT_EXT_SCAN_REPORT:
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mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
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if (adapter->ext_scan)
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return mwifiex_handle_event_ext_scan_report(priv,
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adapter->event_skb->data);
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break;
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case EVENT_TX_STATUS_REPORT:
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mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
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mwifiex_parse_tx_status_event(priv, adapter->event_body);
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break;
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case EVENT_PS_SLEEP:
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mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
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adapter->ps_state = PS_STATE_PRE_SLEEP;
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mwifiex_check_ps_cond(adapter);
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break;
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case EVENT_PS_AWAKE:
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mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
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if (!adapter->pps_uapsd_mode &&
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priv->media_connected && adapter->sleep_period.period) {
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adapter->pps_uapsd_mode = true;
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mwifiex_dbg(adapter, EVENT,
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"event: PPS/UAPSD mode activated\n");
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}
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adapter->tx_lock_flag = false;
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if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
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if (mwifiex_check_last_packet_indication(priv)) {
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if (adapter->data_sent ||
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(adapter->if_ops.is_port_ready &&
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!adapter->if_ops.is_port_ready(priv))) {
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adapter->ps_state = PS_STATE_AWAKE;
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adapter->pm_wakeup_card_req = false;
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adapter->pm_wakeup_fw_try = false;
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break;
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}
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if (!mwifiex_send_null_packet
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(priv,
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MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
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MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
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adapter->ps_state =
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PS_STATE_SLEEP;
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return 0;
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}
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}
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adapter->ps_state = PS_STATE_AWAKE;
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adapter->pm_wakeup_card_req = false;
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adapter->pm_wakeup_fw_try = false;
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break;
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case EVENT_CHANNEL_REPORT_RDY:
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mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
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mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
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break;
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case EVENT_RADAR_DETECTED:
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mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
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mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
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break;
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case EVENT_BT_COEX_WLAN_PARA_CHANGE:
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dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
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mwifiex_bt_coex_wlan_param_update_event(priv,
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adapter->event_skb);
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break;
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case EVENT_TX_DATA_PAUSE:
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mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
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mwifiex_process_tx_pause_event(priv, adapter->event_skb);
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break;
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case EVENT_MULTI_CHAN_INFO:
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mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
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mwifiex_process_multi_chan_event(priv, adapter->event_skb);
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break;
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case EVENT_RXBA_SYNC:
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dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
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mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
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adapter->event_skb->len -
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sizeof(eventcause));
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break;
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case EVENT_REMAIN_ON_CHAN_EXPIRED:
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mwifiex_dbg(adapter, EVENT,
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"event: uap: Remain on channel expired\n");
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cfg80211_remain_on_channel_expired(&priv->wdev,
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priv->roc_cfg.cookie,
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&priv->roc_cfg.chan,
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GFP_ATOMIC);
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memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
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break;
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default:
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mwifiex_dbg(adapter, EVENT,
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"event: unknown event id: %#x\n", eventcause);
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break;
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}
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return 0;
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}
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/* This function deletes station entry from associated station list.
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* 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;
|
||
|
|
}
|