diff options
Diffstat (limited to 'drivers/net/wireless/marvell/mwifiex/uap_event.c')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/uap_event.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/uap_event.c b/drivers/net/wireless/marvell/mwifiex/uap_event.c new file mode 100644 index 000000000000..86ff54296f39 --- /dev/null +++ b/drivers/net/wireless/marvell/mwifiex/uap_event.c @@ -0,0 +1,333 @@ +/* + * 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" + +#define MWIFIEX_BSS_START_EVT_FIX_SIZE 12 + +static int mwifiex_check_uap_capabilties(struct mwifiex_private *priv, + struct sk_buff *event) +{ + int evt_len; + u8 *curr; + u16 tlv_len; + struct mwifiex_ie_types_data *tlv_hdr; + struct ieee_types_wmm_parameter *wmm_param_ie = NULL; + int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK; + + priv->wmm_enabled = false; + skb_pull(event, MWIFIEX_BSS_START_EVT_FIX_SIZE); + evt_len = event->len; + curr = event->data; + + mwifiex_dbg_dump(priv->adapter, EVT_D, "uap capabilties:", + event->data, event->len); + + skb_push(event, MWIFIEX_BSS_START_EVT_FIX_SIZE); + + while ((evt_len >= sizeof(tlv_hdr->header))) { + tlv_hdr = (struct mwifiex_ie_types_data *)curr; + tlv_len = le16_to_cpu(tlv_hdr->header.len); + + if (evt_len < tlv_len + sizeof(tlv_hdr->header)) + break; + + switch (le16_to_cpu(tlv_hdr->header.type)) { + case WLAN_EID_HT_CAPABILITY: + priv->ap_11n_enabled = true; + break; + + case WLAN_EID_VHT_CAPABILITY: + priv->ap_11ac_enabled = true; + break; + + case WLAN_EID_VENDOR_SPECIFIC: + /* Point the regular IEEE IE 2 bytes into the Marvell IE + * and setup the IEEE IE type and length byte fields + */ + wmm_param_ie = (void *)(curr + 2); + wmm_param_ie->vend_hdr.len = (u8)tlv_len; + wmm_param_ie->vend_hdr.element_id = + WLAN_EID_VENDOR_SPECIFIC; + mwifiex_dbg(priv->adapter, EVENT, + "info: check uap capabilities:\t" + "wmm parameter set count: %d\n", + wmm_param_ie->qos_info_bitmap & mask); + + mwifiex_wmm_setup_ac_downgrade(priv); + priv->wmm_enabled = true; + mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie); + break; + + default: + break; + } + + curr += (tlv_len + sizeof(tlv_hdr->header)); + evt_len -= (tlv_len + sizeof(tlv_hdr->header)); + } + + return 0; +} + +/* + * 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) { + mwifiex_dbg(adapter, ERROR, + "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; + priv->port_open = false; + mwifiex_clean_txrx(priv); + mwifiex_del_all_sta_list(priv); + break; + case EVENT_UAP_BSS_ACTIVE: + priv->media_connected = true; + priv->port_open = true; + break; + case EVENT_UAP_BSS_START: + mwifiex_dbg(adapter, EVENT, + "AP EVENT: event id: %#x\n", eventcause); + priv->port_open = false; + memcpy(priv->netdev->dev_addr, adapter->event_body + 2, + ETH_ALEN); + if (priv->hist_data) + mwifiex_hist_data_reset(priv); + mwifiex_check_uap_capabilties(priv, adapter->event_skb); + break; + case EVENT_UAP_MIC_COUNTERMEASURES: + /* For future development */ + mwifiex_dbg(adapter, EVENT, + "AP EVENT: event id: %#x\n", eventcause); + break; + case EVENT_AMSDU_AGGR_CTRL: + ctrl = le16_to_cpu(*(__le16 *)adapter->event_body); + mwifiex_dbg(adapter, EVENT, + "event: AMSDU_AGGR_CTRL %d\n", ctrl); + + if (priv->media_connected) { + adapter->tx_buf_size = + min_t(u16, adapter->curr_tx_buf_size, ctrl); + mwifiex_dbg(adapter, EVENT, + "event: tx_buf_size %d\n", + adapter->tx_buf_size); + } + break; + case EVENT_ADDBA: + mwifiex_dbg(adapter, EVENT, "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: + mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n"); + if (priv->media_connected) + mwifiex_11n_delete_ba_stream(priv, adapter->event_body); + break; + case EVENT_BA_STREAM_TIEMOUT: + mwifiex_dbg(adapter, EVENT, "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: + mwifiex_dbg(adapter, EVENT, "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: + mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n"); + mwifiex_parse_tx_status_event(priv, adapter->event_body); + break; + case EVENT_PS_SLEEP: + mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n"); + + adapter->ps_state = PS_STATE_PRE_SLEEP; + + mwifiex_check_ps_cond(adapter); + break; + + case EVENT_PS_AWAKE: + mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n"); + if (!adapter->pps_uapsd_mode && + priv->media_connected && adapter->sleep_period.period) { + adapter->pps_uapsd_mode = true; + mwifiex_dbg(adapter, EVENT, + "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->if_ops.is_port_ready && + !adapter->if_ops.is_port_ready(priv))) { + 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: + mwifiex_dbg(adapter, EVENT, "event: Channel Report\n"); + mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb); + break; + case EVENT_RADAR_DETECTED: + mwifiex_dbg(adapter, EVENT, "event: Radar detected\n"); + mwifiex_11h_handle_radar_detected(priv, adapter->event_skb); + break; + case EVENT_BT_COEX_WLAN_PARA_CHANGE: + dev_err(adapter->dev, "EVENT: BT coex wlan param update\n"); + mwifiex_bt_coex_wlan_param_update_event(priv, + adapter->event_skb); + break; + case EVENT_TX_DATA_PAUSE: + mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n"); + mwifiex_process_tx_pause_event(priv, adapter->event_skb); + break; + + case EVENT_MULTI_CHAN_INFO: + mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n"); + mwifiex_process_multi_chan_event(priv, adapter->event_skb); + break; + + default: + mwifiex_dbg(adapter, EVENT, + "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; +} |