linux/drivers/net/wireless/marvell/mwifiex/sta_event.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * NXP Wireless LAN device driver: station event handling
 *
 * Copyright 2011-2020 NXP
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"

#define MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE …

static int mwifiex_check_ibss_peer_capabilities(struct mwifiex_private *priv,
					        struct mwifiex_sta_node *sta_ptr,
					        struct sk_buff *event)
{ … }

/*
 * This function resets the connection state.
 *
 * The function is invoked after receiving a disconnect event from firmware,
 * and performs the following actions -
 *      - Set media status to disconnected
 *      - Clean up Tx and Rx packets
 *      - Resets SNR/NF/RSSI value in driver
 *      - Resets security configurations in driver
 *      - Enables auto data rate
 *      - Saves the previous SSID and BSSID so that they can
 *        be used for re-association, if required
 *      - Erases current SSID and BSSID information
 *      - Sends a disconnect event to upper layers/applications.
 */
void mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code,
				 bool from_ap)
{ … }

static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
				    struct sk_buff *event_skb)
{ … }

static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv,
					 struct mwifiex_ie_types_header *tlv)
{ … }

static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv,
					 struct mwifiex_ie_types_header *tlv)
{ … }

void mwifiex_process_multi_chan_event(struct mwifiex_private *priv,
				      struct sk_buff *event_skb)
{ … }

void mwifiex_process_tx_pause_event(struct mwifiex_private *priv,
				    struct sk_buff *event_skb)
{ … }

/*
* This function handles coex events generated by firmware
*/
void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
					     struct sk_buff *event_skb)
{ … }

static void
mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
			   struct sk_buff *event_skb)
{ … }

/*
 * This function handles events generated by firmware.
 *
 * This is a generic function and handles all events.
 *
 * Event specific routines are called by this function based
 * upon the generated event cause.
 *
 * For the following events, the function just forwards them to upper
 * layers, optionally recording the change -
 *      - EVENT_LINK_SENSED
 *      - EVENT_MIC_ERR_UNICAST
 *      - EVENT_MIC_ERR_MULTICAST
 *      - EVENT_PORT_RELEASE
 *      - EVENT_RSSI_LOW
 *      - EVENT_SNR_LOW
 *      - EVENT_MAX_FAIL
 *      - EVENT_RSSI_HIGH
 *      - EVENT_SNR_HIGH
 *      - EVENT_DATA_RSSI_LOW
 *      - EVENT_DATA_SNR_LOW
 *      - EVENT_DATA_RSSI_HIGH
 *      - EVENT_DATA_SNR_HIGH
 *      - EVENT_LINK_QUALITY
 *      - EVENT_PRE_BEACON_LOST
 *      - EVENT_IBSS_COALESCED
 *      - EVENT_IBSS_STA_CONNECT
 *      - EVENT_IBSS_STA_DISCONNECT
 *      - EVENT_WEP_ICV_ERR
 *      - EVENT_BW_CHANGE
 *      - EVENT_HOSTWAKE_STAIE
  *
 * For the following events, no action is taken -
 *      - EVENT_MIB_CHANGED
 *      - EVENT_INIT_DONE
 *      - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
 *
 * Rest of the supported events requires driver handling -
 *      - EVENT_DEAUTHENTICATED
 *      - EVENT_DISASSOCIATED
 *      - EVENT_LINK_LOST
 *      - EVENT_PS_SLEEP
 *      - EVENT_PS_AWAKE
 *      - EVENT_DEEP_SLEEP_AWAKE
 *      - EVENT_HS_ACT_REQ
 *      - EVENT_ADHOC_BCN_LOST
 *      - EVENT_BG_SCAN_REPORT
 *      - EVENT_WMM_STATUS_CHANGE
 *      - EVENT_ADDBA
 *      - EVENT_DELBA
 *      - EVENT_BA_STREAM_TIEMOUT
 *      - EVENT_AMSDU_AGGR_CTRL
 *      - EVENT_FW_DUMP_INFO
 */
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{ … }