cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/marvell/mwifiex/uap_event.c

/*
 * 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; }

Contributors

PersonTokensPropCommitsCommitProp
Avinash Patil27297.49%150.00%
Amitkumar Karwar72.51%150.00%
Total279100.00%2100.00%

/* * 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; case EVENT_RXBA_SYNC: dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n"); mwifiex_11n_rxba_sync_event(priv, adapter->event_body, adapter->event_skb->len - sizeof(eventcause)); break; default: mwifiex_dbg(adapter, EVENT, "event: unknown event id: %#x\n", eventcause); break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Avinash Patil89383.77%1463.64%
Zhaoyang Liu666.19%29.09%
Xinming Hu444.13%29.09%
Bing Zhao222.06%29.09%
Chunfan Chen222.06%14.55%
Amitkumar Karwar191.78%14.55%
Total1066100.00%22100.00%

/* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Avinash Patil55100.00%1100.00%
Total55100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Avinash Patil123587.22%1560.00%
Zhaoyang Liu664.66%28.00%
Xinming Hu453.18%312.00%
Amitkumar Karwar261.84%28.00%
Bing Zhao221.55%28.00%
Chunfan Chen221.55%14.00%
Total1416100.00%25100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.