linux/drivers/net/wireless/marvell/mwifiex/11h.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * NXP Wireless LAN device driver: 802.11h
 *
 * Copyright 2011-2020 NXP
 */

#include "main.h"
#include "fw.h"


void mwifiex_init_11h_params(struct mwifiex_private *priv)
{ … }

inline int mwifiex_is_11h_active(struct mwifiex_private *priv)
{ … }
/* This function appends 11h info to a buffer while joining an
 * infrastructure BSS
 */
static void
mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
			       struct mwifiex_bssdescriptor *bss_desc)
{ … }

/* Enable or disable the 11h extensions in the firmware */
int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
{ … }

/* This functions processes TLV buffer for a pending BSS Join command.
 *
 * Activate 11h functionality in the firmware if the spectrum management
 * capability bit is found in the network we are joining. Also, necessary
 * TLVs are set based on requested network's 11h capability.
 */
void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
			      struct mwifiex_bssdescriptor *bss_desc)
{ … }

/* This is DFS CAC work queue function.
 * This delayed work emits CAC finished event for cfg80211 if
 * CAC was started earlier.
 */
void mwifiex_dfs_cac_work_queue(struct work_struct *work)
{ … }

/* This function prepares channel report request command to FW for
 * starting radar detection.
 */
int mwifiex_cmd_issue_chan_report_request(struct mwifiex_private *priv,
					  struct host_cmd_ds_command *cmd,
					  void *data_buf)
{ … }

int mwifiex_stop_radar_detection(struct mwifiex_private *priv,
				 struct cfg80211_chan_def *chandef)
{ … }

/* This function is to abort ongoing CAC upon stopping AP operations
 * or during unload.
 */
void mwifiex_abort_cac(struct mwifiex_private *priv)
{ … }

/* This function handles channel report event from FW during CAC period.
 * If radar is detected during CAC, driver indicates the same to cfg80211
 * and also cancels ongoing delayed work.
 */
int mwifiex_11h_handle_chanrpt_ready(struct mwifiex_private *priv,
				     struct sk_buff *skb)
{ … }

/* Handler for radar detected event from FW.*/
int mwifiex_11h_handle_radar_detected(struct mwifiex_private *priv,
				      struct sk_buff *skb)
{ … }

/* This is work queue function for channel switch handling.
 * This function takes care of updating new channel definitin to
 * bss config structure, restart AP and indicate channel switch success
 * to cfg80211.
 */
void mwifiex_dfs_chan_sw_work_queue(struct work_struct *work)
{ … }