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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * NXP Wireless LAN device driver: utility functions
 *
 * 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"

static struct mwifiex_debug_data items[] = …;

static int num_of_items = …;

/*
 * Firmware initialization complete callback handler.
 *
 * This function wakes up the function waiting on the init
 * wait queue for the firmware initialization to complete.
 */
int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
{ … }

/*
 * This function sends init/shutdown command
 * to firmware.
 */
int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
			     u32 func_init_shutdown)
{ … }
EXPORT_SYMBOL_GPL(…);

/*
 * IOCTL request handler to set/get debug information.
 *
 * This function collates/sets the information from/to different driver
 * structures.
 */
int mwifiex_get_debug_info(struct mwifiex_private *priv,
			   struct mwifiex_debug_info *info)
{ … }

int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
				 struct mwifiex_debug_info *info)
{ … }

static int
mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len,
			  struct rxpd *rx_pd)
{ … }
/*
 * This function processes the received management packet and send it
 * to the kernel.
 */
int
mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
			    struct sk_buff *skb)
{ … }

/*
 * This function processes the received packet before sending it to the
 * kernel.
 *
 * It extracts the SKB from the received buffer and sends it to kernel.
 * In case the received buffer does not contain the data in SKB format,
 * the function creates a blank SKB, fills it with the data from the
 * received buffer and then sends this new SKB to the kernel.
 */
int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb)
{ … }

/*
 * IOCTL completion callback handler.
 *
 * This function is called when a pending IOCTL is completed.
 *
 * If work queue support is enabled, the function wakes up the
 * corresponding waiting function. Otherwise, it processes the
 * IOCTL response and frees the response buffer.
 */
int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
			 struct cmd_ctrl_node *cmd_node)
{ … }

/* This function will return the pointer to station entry in station list
 * table which matches specified mac address.
 * This function should be called after acquiring RA list spinlock.
 * NULL is returned if station entry is not found in associated STA list.
 */
struct mwifiex_sta_node *
mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac)
{ … }

static struct mwifiex_sta_node *
mwifiex_get_tdls_sta_entry(struct mwifiex_private *priv, u8 status)
{ … }

/* If tdls channel switching is on-going, tx data traffic should be
 * blocked until the switching stage completed.
 */
u8 mwifiex_is_tdls_chan_switching(struct mwifiex_private *priv)
{ … }

u8 mwifiex_is_tdls_off_chan(struct mwifiex_private *priv)
{ … }

/* If tdls channel switching is on-going or tdls operate on off-channel,
 * cmd path should be blocked until tdls switched to base-channel.
 */
u8 mwifiex_is_send_cmd_allowed(struct mwifiex_private *priv)
{ … }

/* This function will add a sta_node entry to associated station list
 * table with the given mac address.
 * If entry exist already, existing entry is returned.
 * If received mac address is NULL, NULL is returned.
 */
struct mwifiex_sta_node *
mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac)
{ … }

/* This function will search for HT IE in association request IEs
 * and set station HT parameters accordingly.
 */
void
mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies,
		       int ies_len, struct mwifiex_sta_node *node)
{ … }

/* This function will delete a station entry from station list */
void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac)
{ … }

/* This function will delete all stations from associated station list. */
void mwifiex_del_all_sta_list(struct mwifiex_private *priv)
{ … }

/* This function adds histogram data to histogram array*/
void mwifiex_hist_data_add(struct mwifiex_private *priv,
			   u8 rx_rate, s8 snr, s8 nflr)
{ … }

/* function to add histogram record */
void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr,
			   s8 nflr)
{ … }

/* function to reset histogram data during init/reset */
void mwifiex_hist_data_reset(struct mwifiex_private *priv)
{ … }

void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags)
{ … }
EXPORT_SYMBOL_GPL(…);

void mwifiex_fw_dump_event(struct mwifiex_private *priv)
{ … }
EXPORT_SYMBOL_GPL(…);