path: root/drivers/net/wireless/nxp/nxpwifi/debugfs.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * nxpwifi: debugfs
 *
 * Copyright 2011-2024 NXP
 */

#include <linux/debugfs.h>

#include "main.h"
#include "cmdevt.h"
#include "11n.h"

static struct dentry *nxpwifi_dfs_dir;

static char *bss_modes[] = {
	"UNSPECIFIED",
	"ADHOC",
	"STATION",
	"AP",
	"AP_VLAN",
	"WDS",
	"MONITOR",
	"MESH_POINT",
	"P2P_CLIENT",
	"P2P_GO",
	"P2P_DEVICE",
};

/*
 * debugfs "info" read handler: dump driver name/version, interface, BSS mode,
 * link state, MAC, counters; STA adds SSID/BSSID/channel/country/region and
 * multicast list.
 */
static ssize_t
nxpwifi_info_read(struct file *file, char __user *ubuf,
		  size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	struct net_device *netdev = priv->netdev;
	struct netdev_hw_addr *ha;
	struct netdev_queue *txq;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *)page, fmt[64];
	struct nxpwifi_bss_info info;
	ssize_t ret;
	int i = 0;

	if (!p)
		return -ENOMEM;

	memset(&info, 0, sizeof(info));
	ret = nxpwifi_get_bss_info(priv, &info);
	if (ret)
		goto free_and_exit;

	nxpwifi_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);

	nxpwifi_get_ver_ext(priv, 0);

	p += sprintf(p, "driver_name = ");
	p += sprintf(p, "\"nxpwifi\"\n");
	p += sprintf(p, "driver_version = %s", fmt);
	p += sprintf(p, "\nverext = %s", priv->version_str);
	p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);

	if (info.bss_mode >= ARRAY_SIZE(bss_modes))
		p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
	else
		p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);

	p += sprintf(p, "media_state=\"%s\"\n",
		     (!priv->media_connected ? "Disconnected" : "Connected"));
	p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);

	if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA) {
		p += sprintf(p, "multicast_count=\"%d\"\n",
			     netdev_mc_count(netdev));
		p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len,
			     info.ssid.ssid);
		p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
		p += sprintf(p, "channel=\"%d\"\n", (int)info.bss_chan);
		p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
		p += sprintf(p, "region_code=\"0x%x\"\n",
			     priv->adapter->region_code);

		netdev_for_each_mc_addr(ha, netdev)
			p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",
					i++, ha->addr);
	}

	p +=