xref: /linux/drivers/net/wireless/nxp/nxpwifi/debugfs.c (revision 91ec2035134982b98fab0609a9fd8480e8217dc1)

// 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 += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
	p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
	p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
	p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
	p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
	p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
	p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
	p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
	p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
					 ? "on" : "off"));
	p += sprintf(p, "tx queue");
	for (i = 0; i < netdev->num_tx_queues; i++) {
		txq = netdev_get_tx_queue(netdev, i);
		p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
			     "stopped" : "started");
	}
	p += sprintf(p, "\n");

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
				      (unsigned long)p - page);

free_and_exit:
	free_page(page);
	return ret;
}

/*
 * debugfs "getlog" read handler: dump firmware/802.11 counters (retry, RTS/ACK, dup,
 * frag, mcast, FCS, beacon stats).
 */
static ssize_t
nxpwifi_getlog_read(struct file *file, char __user *ubuf,
		    size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *)page;
	ssize_t ret;
	struct nxpwifi_ds_get_stats stats;

	if (!p)
		return -ENOMEM;

	memset(&stats, 0, sizeof(stats));
	ret = nxpwifi_get_stats_info(priv, &stats);
	if (ret)
		goto free_and_exit;

	p += sprintf(p, "\n"
		     "mcasttxframe     %u\n"
		     "failed           %u\n"
		     "retry            %u\n"
		     "multiretry       %u\n"
		     "framedup         %u\n"
		     "rtssuccess       %u\n"
		     "rtsfailure       %u\n"
		     "ackfailure       %u\n"
		     "rxfrag           %u\n"
		     "mcastrxframe     %u\n"
		     "fcserror         %u\n"
		     "txframe          %u\n"
		     "wepicverrcnt-1   %u\n"
		     "wepicverrcnt-2   %u\n"
		     "wepicverrcnt-3   %u\n"
		     "wepicverrcnt-4   %u\n"
		     "bcn_rcv_cnt   %u\n"
		     "bcn_miss_cnt   %u\n",
		     stats.mcast_tx_frame,
		     stats.failed,
		     stats.retry,
		     stats.multi_retry,
		     stats.frame_dup,
		     stats.rts_success,
		     stats.rts_failure,
		     stats.ack_failure,
		     stats.rx_frag,
		     stats.mcast_rx_frame,
		     stats.fcs_error,
		     stats.tx_frame,
		     stats.wep_icv_error[0],
		     stats.wep_icv_error[1],
		     stats.wep_icv_error[2],
		     stats.wep_icv_error[3],
		     stats.bcn_rcv_cnt,
		     stats.bcn_miss_cnt);

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
				      (unsigned long)p - page);

free_and_exit:
	free_page(page);
	return ret;
}

/*
 * debugfs "histogram" read handler: report sample count and per-rate/SNR/noise
 * floor/signal strength histograms.
 */
static ssize_t
nxpwifi_histogram_read(struct file *file, char __user *ubuf,
		       size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	ssize_t ret;
	struct nxpwifi_histogram_data *phist_data;
	int i, value;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *)page;

	if (!p)
		return -ENOMEM;

	if (!priv || !priv->hist_data) {
		ret = -EFAULT;
		goto free_and_exit;
	}

	phist_data = priv->hist_data;

	p += sprintf(p, "\n"
		     "total samples = %d\n",
		     atomic_read(&phist_data->num_samples));

	p += sprintf(p,
		     "rx rates (in Mbps): 0=1M   1=2M 2=5.5M  3=11M   4=6M   5=9M  6=12M\n"
		     "7=18M  8=24M  9=36M  10=48M  11=54M 12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n");

	if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
		p += sprintf(p,
			     "44-53=MCS0-9(VHT:BW20) 54-63=MCS0-9(VHT:BW40) 64-73=MCS0-9(VHT:BW80)\n\n");
	} else {
		p += sprintf(p, "\n");
	}

	for (i = 0; i < NXPWIFI_MAX_RX_RATES; i++) {
		value = atomic_read(&phist_data->rx_rate[i]);
		if (value)
			p += sprintf(p, "rx_rate[%02d] = %d\n", i, value);
	}

	if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
		for (i = NXPWIFI_MAX_RX_RATES; i < NXPWIFI_MAX_AC_RX_RATES;
		     i++) {
			value = atomic_read(&phist_data->rx_rate[i]);
			if (value)
				p += sprintf(p, "rx_rate[%02d] = %d\n",
					   i, value);
		}
	}

	for (i = 0; i < NXPWIFI_MAX_SNR; i++) {
		value =  atomic_read(&phist_data->snr[i]);
		if (value)
			p += sprintf(p, "snr[%02ddB] = %d\n", i, value);
	}
	for (i = 0; i < NXPWIFI_MAX_NOISE_FLR; i++) {
		value = atomic_read(&phist_data->noise_flr[i]);
		if (value)
			p += sprintf(p, "noise_flr[%02ddBm] = %d\n",
				     (int)(i - 128), value);
	}
	for (i = 0; i < NXPWIFI_MAX_SIG_STRENGTH; i++) {
		value = atomic_read(&phist_data->sig_str[i]);
		if (value)
			p += sprintf(p, "sig_strength[-%02ddBm] = %d\n",
				i, value);
	}

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
				      (unsigned long)p - page);

free_and_exit:
	free_page(page);
	return ret;
}

static ssize_t
nxpwifi_histogram_write(struct file *file, const char __user *ubuf,
			size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = (void *)file->private_data;

	if (priv && priv->hist_data)
		nxpwifi_hist_data_reset(priv);
	return 0;
}

static struct nxpwifi_debug_info info;

/* debugfs "debug" read handler: dump adapter debug info and BA/reorder tables. */
static ssize_t
nxpwifi_debug_read(struct file *file, char __user *ubuf,
		   size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *)page;
	ssize_t ret;

	if (!p)
		return -ENOMEM;

	ret = nxpwifi_get_debug_info(priv, &info);
	if (ret)
		goto free_and_exit;

	p += nxpwifi_debug_info_to_buffer(priv, p, &info);

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
				      (unsigned long)p - page);

free_and_exit:
	free_page(page);
	return ret;
}

static u32 saved_reg_type, saved_reg_offset, saved_reg_value;

/*
 * debugfs "regrdwr" write handler: parse <type offset value> and store for
 * readback/IO.
 */
static ssize_t
nxpwifi_regrdwr_write(struct file *file,
		      const char __user *ubuf, size_t count, loff_t *ppos)
{
	char *buf;
	int ret;
	u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
	int rv;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	rv = sscanf(buf, "%u %x %x", &reg_type, &reg_offset, &reg_value);

	if (rv != 3) {
		ret = -EINVAL;
		goto done;
	}

	if (reg_type == 0 || reg_offset == 0) {
		ret = -EINVAL;
		goto done;
	} else {
		saved_reg_type = reg_type;
		saved_reg_offset = reg_offset;
		saved_reg_value = reg_value;
		ret = count;
	}
done:
	kfree(buf);
	return ret;
}

/*
 * debugfs "regrdwr" read handler: perform pending register read/write and return
 * <type offset value>.
 */
static ssize_t
nxpwifi_regrdwr_read(struct file *file, char __user *ubuf,
		     size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long addr = get_zeroed_page(GFP_KERNEL);
	char *buf = (char *)addr;
	int pos = 0, ret = 0;
	u32 reg_value;

	if (!buf)
		return -ENOMEM;

	if (!saved_reg_type) {
		/* No command has been given */
		pos += snprintf(buf, PAGE_SIZE, "0");
		goto done;
	}
	/* Set command has been given */
	if (saved_reg_value != UINT_MAX) {
		ret = nxpwifi_reg_write(priv, saved_reg_type, saved_reg_offset,
					saved_reg_value);

		pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
				saved_reg_type, saved_reg_offset,
				saved_reg_value);

		ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);

		goto done;
	}
	/* Get command has been given */
	ret = nxpwifi_reg_read(priv, saved_reg_type,
			       saved_reg_offset, &reg_value);
	if (ret) {
		ret = -EINVAL;
		goto done;
	}

	pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
			saved_reg_offset, reg_value);

	ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);

done:
	free_page(addr);
	return ret;
}

/* debugfs "debug_mask" read handler: show driver debug mask. */

static ssize_t
nxpwifi_debug_mask_read(struct file *file, char __user *ubuf,
			size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *buf = (char *)page;
	size_t ret = 0;
	int pos = 0;

	if (!buf)
		return -ENOMEM;

	pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
			priv->adapter->debug_mask);
	ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);

	free_page(page);
	return ret;
}

/* debugfs "debug_mask" write handler: set driver debug mask. */

static ssize_t
nxpwifi_debug_mask_write(struct file *file, const char __user *ubuf,
			 size_t count, loff_t *ppos)
{
	int ret;
	unsigned long debug_mask;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	if (kstrtoul(buf, 0, &debug_mask)) {
		ret = -EINVAL;
		goto done;
	}

	priv->adapter->debug_mask = debug_mask;
	ret = count;
done:
	kfree(buf);
	return ret;
}

/* debugfs "verext" write handler: select extended version string. */
static ssize_t
nxpwifi_verext_write(struct file *file, const char __user *ubuf,
		     size_t count, loff_t *ppos)
{
	int ret;
	u32 versionstrsel;
	struct nxpwifi_private *priv = (void *)file->private_data;

	ret = kstrtou32_from_user(ubuf, count, 10, &versionstrsel);
	if (ret)
		return ret;

	priv->versionstrsel = versionstrsel;

	return count;
}

/* debugfs "verext" read handler: show extended version string. */
static ssize_t
nxpwifi_verext_read(struct file *file, char __user *ubuf,
		    size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	char buf[256];
	int ret;

	nxpwifi_get_ver_ext(priv, priv->versionstrsel);
	ret = snprintf(buf, sizeof(buf), "version string: %s\n",
		       priv->version_str);

	return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
}

/* debugfs "memrw" write handler: read/write firmware memory (addr, value). */
static ssize_t
nxpwifi_memrw_write(struct file *file, const char __user *ubuf, size_t count,
		    loff_t *ppos)
{
	int ret;
	char cmd;
	struct nxpwifi_ds_mem_rw mem_rw;
	u16 cmd_action;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
	if (ret != 3) {
		ret = -EINVAL;
		goto done;
	}

	if ((cmd == 'r') || (cmd == 'R')) {
		cmd_action = HOST_ACT_GEN_GET;
		mem_rw.value = 0;
	} else if ((cmd == 'w') || (cmd == 'W')) {
		cmd_action = HOST_ACT_GEN_SET;
	} else {
		ret = -EINVAL;
		goto done;
	}

	memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
	ret = nxpwifi_send_cmd(priv, HOST_CMD_MEM_ACCESS, cmd_action, 0,
			       &mem_rw, true);
	if (!ret)
		ret = count;

done:
	kfree(buf);
	return ret;
}

/* debugfs "memrw" read handler: show last memory access result. */
static ssize_t
nxpwifi_memrw_read(struct file *file, char __user *ubuf,
		   size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = (void *)file->private_data;
	unsigned long addr = get_zeroed_page(GFP_KERNEL);
	char *buf = (char *)addr;
	int ret, pos = 0;

	if (!buf)
		return -ENOMEM;

	pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
			priv->mem_rw.value);
	ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);

	free_page(addr);
	return ret;
}

static u32 saved_offset = -1, saved_bytes = -1;

/* debugfs "rdeeprom" write handler: set EEPROM offset/length to read. */
static ssize_t
nxpwifi_rdeeprom_write(struct file *file,
		       const char __user *ubuf, size_t count, loff_t *ppos)
{
	char *buf;
	int ret = 0;
	int offset = -1, bytes = -1;
	int rv;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	rv = sscanf(buf, "%d %d", &offset, &bytes);

	if (rv != 2) {
		ret = -EINVAL;
		goto done;
	}

	if (offset == -1 || bytes == -1) {
		ret = -EINVAL;
		goto done;
	} else {
		saved_offset = offset;
		saved_bytes = bytes;
		ret = count;
	}
done:
	kfree(buf);
	return ret;
}

/* debugfs "rdeeprom" read handler: dump EEPROM bytes from saved offset/length. */
static ssize_t
nxpwifi_rdeeprom_read(struct file *file, char __user *ubuf,
		      size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long addr = get_zeroed_page(GFP_KERNEL);
	char *buf = (char *)addr;
	int pos, ret, i;
	u8 value[MAX_EEPROM_DATA];

	if (!buf)
		return -ENOMEM;

	if (saved_offset == -1) {
		/* No command has been given */
		pos = snprintf(buf, PAGE_SIZE, "0");
		goto done;
	}

	/* Get command has been given */
	ret = nxpwifi_eeprom_read(priv, (u16)saved_offset,
				  (u16)saved_bytes, value);
	if (ret) {
		ret = -EINVAL;
		goto out_free;
	}

	pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);

	for (i = 0; i < saved_bytes; i++)
		pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]);

done:
	ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
out_free:
	free_page(addr);
	return ret;
}

/*
 * debugfs "hscfg" write handler: configure host-sleep (conditions/gpio/gap) or
 * cancel.
 */
static ssize_t
nxpwifi_hscfg_write(struct file *file, const char __user *ubuf,
		    size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;
	int ret, arg_num;
	struct nxpwifi_ds_hs_cfg hscfg;
	int conditions = HS_CFG_COND_DEF;
	u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);

	memset(&hscfg, 0, sizeof(struct nxpwifi_ds_hs_cfg));

	if (arg_num > 3) {
		nxpwifi_dbg(priv->adapter, ERROR,
			    "Too many arguments\n");
		ret = -EINVAL;
		goto done;
	}

	if (arg_num >= 1 && arg_num < 3)
		nxpwifi_set_hs_params(priv, HOST_ACT_GEN_GET,
				      NXPWIFI_SYNC_CMD, &hscfg);

	if (arg_num) {
		if (conditions == HS_CFG_CANCEL) {
			nxpwifi_cancel_hs(priv, NXPWIFI_ASYNC_CMD);
			ret = count;
			goto done;
		}
		hscfg.conditions = conditions;
	}
	if (arg_num >= 2)
		hscfg.gpio = gpio;
	if (arg_num == 3)
		hscfg.gap = gap;

	hscfg.is_invoke_hostcmd = false;
	nxpwifi_set_hs_params(priv, HOST_ACT_GEN_SET,
			      NXPWIFI_SYNC_CMD, &hscfg);

	nxpwifi_enable_hs(priv->adapter);
	clear_bit(NXPWIFI_IS_HS_ENABLING, &priv->adapter->work_flags);
	ret = count;
done:
	kfree(buf);
	return ret;
}

/* debugfs "hscfg" read handler: show current host-sleep configuration. */
static ssize_t
nxpwifi_hscfg_read(struct file *file, char __user *ubuf,
		   size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = (void *)file->private_data;
	unsigned long addr = get_zeroed_page(GFP_KERNEL);
	char *buf = (char *)addr;
	int pos, ret;
	struct nxpwifi_ds_hs_cfg hscfg;

	if (!buf)
		return -ENOMEM;

	nxpwifi_set_hs_params(priv, HOST_ACT_GEN_GET,
			      NXPWIFI_SYNC_CMD, &hscfg);

	pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions,
		       hscfg.gpio, hscfg.gap);

	ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);

	free_page(addr);
	return ret;
}

static ssize_t
nxpwifi_timeshare_coex_read(struct file *file, char __user *ubuf,
			    size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = file->private_data;
	char buf[3];
	bool timeshare_coex;
	int ret;
	unsigned int len;

	if (priv->adapter->fw_api_ver != NXPWIFI_FW_V15)
		return -EOPNOTSUPP;

	ret = nxpwifi_send_cmd(priv, HOST_CMD_ROBUST_COEX,
			       HOST_ACT_GEN_GET, 0, &timeshare_coex, true);
	if (ret)
		return ret;

	len = sprintf(buf, "%d\n", timeshare_coex);
	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}

static ssize_t
nxpwifi_timeshare_coex_write(struct file *file, const char __user *ubuf,
			     size_t count, loff_t *ppos)
{
	bool timeshare_coex;
	struct nxpwifi_private *priv = file->private_data;
	int ret;

	if (priv->adapter->fw_api_ver != NXPWIFI_FW_V15)
		return -EOPNOTSUPP;

	ret = kstrtobool_from_user(ubuf, count, &timeshare_coex);
	if (ret)
		return ret;

	ret = nxpwifi_send_cmd(priv, HOST_CMD_ROBUST_COEX,
			       HOST_ACT_GEN_SET, 0, &timeshare_coex, true);
	if (ret)
		return ret;
	else
		return count;
}

static ssize_t
nxpwifi_reset_write(struct file *file,
		    const char __user *ubuf, size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = file->private_data;
	struct nxpwifi_adapter *adapter = priv->adapter;
	bool result;
	int rc;

	rc = kstrtobool_from_user(ubuf, count, &result);
	if (rc)
		return rc;

	if (!result)
		return -EINVAL;

	if (adapter->if_ops.card_reset) {
		nxpwifi_dbg(adapter, INFO, "Resetting per request\n");
		adapter->if_ops.card_reset(adapter);
	}

	return count;
}

static ssize_t
nxpwifi_fake_radar_detect_write(struct file *file,
				const char __user *ubuf,
				size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv = file->private_data;
	struct nxpwifi_adapter *adapter = priv->adapter;
	bool result;
	int rc;

	rc = kstrtobool_from_user(ubuf, count, &result);
	if (rc)
		return rc;

	if (!result)
		return -EINVAL;

	if (priv->wdev.links[0].cac_started) {
		nxpwifi_dbg(adapter, MSG,
			    "Generate fake radar detected during CAC\n");
		if (nxpwifi_stop_radar_detection(priv, &priv->dfs_chandef))
			nxpwifi_dbg(adapter, ERROR,
				    "Failed to stop CAC in FW\n");
		wiphy_delayed_work_cancel(priv->adapter->wiphy, &priv->dfs_cac_work);
		cfg80211_cac_event(priv->netdev, &priv->dfs_chandef,
				   NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0);
		cfg80211_radar_event(adapter->wiphy, &priv->dfs_chandef,
				     GFP_KERNEL);
	} else {
		if (priv->bss_chandef.chan->dfs_cac_ms) {
			nxpwifi_dbg(adapter, MSG,
				    "Generate fake radar detected\n");
			cfg80211_radar_event(adapter->wiphy,
					     &priv->dfs_chandef,
					     GFP_KERNEL);
		}
	}

	return count;
}

static ssize_t
nxpwifi_netmon_write(struct file *file, const char __user *ubuf,
		     size_t count, loff_t *ppos)
{
	int ret;
	struct nxpwifi_802_11_net_monitor netmon_cfg;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);
	memset(&netmon_cfg, 0, sizeof(struct nxpwifi_802_11_net_monitor));
	ret = sscanf(buf, "%u %u %u %u %u",
		     &netmon_cfg.enable_net_mon,
		     &netmon_cfg.filter_flag,
		     &netmon_cfg.band,
		     &netmon_cfg.channel,
		     &netmon_cfg.chan_bandwidth);

	ret = nxpwifi_send_cmd(priv, HOST_CMD_802_11_NET_MONITOR,
			       HOST_ACT_GEN_SET, 0, &netmon_cfg, true);

	if (!ret)
		ret = count;

	kfree(buf);
	return ret;
}

static ssize_t
nxpwifi_twt_setup_write(struct file *file, const char __user *ubuf,
			size_t count, loff_t *ppos)
{
	int ret;
	struct nxpwifi_twt_cfg twt_cfg;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;
	u16 twt_mantissa, bcn_miss_threshold;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	ret = sscanf(buf, "%hhu %hhu %hhu %hhu %hhu %hhu %hhu %hhu %hhu %hu %hhu %hu",
		     &twt_cfg.param.twt_setup.implicit,
		     &twt_cfg.param.twt_setup.announced,
		     &twt_cfg.param.twt_setup.trigger_enabled,
		     &twt_cfg.param.twt_setup.twt_info_disabled,
		     &twt_cfg.param.twt_setup.negotiation_type,
		     &twt_cfg.param.twt_setup.twt_wakeup_duration,
		     &twt_cfg.param.twt_setup.flow_identifier,
		     &twt_cfg.param.twt_setup.hard_constraint,
		     &twt_cfg.param.twt_setup.twt_exponent,
		     &twt_mantissa,
		     &twt_cfg.param.twt_setup.twt_request,
		     &bcn_miss_threshold);

	twt_cfg.param.twt_setup.twt_mantissa = cpu_to_le16(twt_mantissa);
	twt_cfg.param.twt_setup.bcn_miss_threshold = cpu_to_le16(bcn_miss_threshold);
	twt_cfg.sub_id = NXPWIFI_11AX_TWT_SETUP_SUBID;
	ret = nxpwifi_send_cmd(priv, HOST_CMD_TWT_CFG, HOST_ACT_GEN_SET, 0,
			       &twt_cfg, true);
	if (!ret)
		ret = count;

	kfree(buf);
	return ret;
}

static ssize_t
nxpwifi_twt_teardown_write(struct file *file, const char __user *ubuf,
			   size_t count, loff_t *ppos)
{
	int ret;
	struct nxpwifi_twt_cfg twt_cfg;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	ret = sscanf(buf, "%hhu %hhu %hhu",
		     &twt_cfg.param.twt_teardown.flow_identifier,
		     &twt_cfg.param.twt_teardown.negotiation_type,
		     &twt_cfg.param.twt_teardown.teardown_all_twt);

	twt_cfg.sub_id = NXPWIFI_11AX_TWT_TEARDOWN_SUBID;
	ret = nxpwifi_send_cmd(priv, HOST_CMD_TWT_CFG, HOST_ACT_GEN_SET, 0,
			       &twt_cfg, true);

	if (!ret)
		ret = count;

	kfree(buf);
	return ret;
}

static ssize_t
nxpwifi_twt_report_read(struct file *file, char __user *ubuf,
			size_t count, loff_t *ppos)
{
	struct nxpwifi_private *priv =
		(struct nxpwifi_private *)file->private_data;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *)page;
	ssize_t ret;
	struct nxpwifi_twt_cfg twt_cfg;
	u8 num, i, j;

	if (!p)
		return -ENOMEM;

	twt_cfg.sub_id = NXPWIFI_11AX_TWT_REPORT_SUBID;
	ret = nxpwifi_send_cmd(priv, HOST_CMD_TWT_CFG, HOST_ACT_GEN_GET, 0,
			       &twt_cfg, true);
	if (ret)
		goto done;
	num = twt_cfg.param.twt_report.length / NXPWIFI_BTWT_REPORT_LEN;
	num = num <= NXPWIFI_BTWT_REPORT_MAX_NUM ? num : NXPWIFI_BTWT_REPORT_MAX_NUM;
	p += sprintf(p, "\ntwt_report len %hhu, num %hhu, twt_report_info:\n",
		twt_cfg.param.twt_report.length, num);
	for (i = 0; i < num; i++) {
		p += sprintf(p, "id[%hu]:\r\n", i);
		for (j = 0; j < NXPWIFI_BTWT_REPORT_LEN; j++) {
			p += sprintf(p,
				" 0x%02x",
				twt_cfg.param.twt_report.data[i * NXPWIFI_BTWT_REPORT_LEN + j]);
		}
		p += sprintf(p, "\r\n");
	}

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
				      (unsigned long)p - page);

done:
	free_page(page);
	return ret;
}

static ssize_t
nxpwifi_twt_information_write(struct file *file, const char __user *ubuf,
			      size_t count, loff_t *ppos)
{
	int ret;
	struct nxpwifi_twt_cfg twt_cfg;
	struct nxpwifi_private *priv = (void *)file->private_data;
	char *buf;
	u32 suspend_duration;

	buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
	if (IS_ERR(buf))
		return PTR_ERR(buf);

	ret = sscanf(buf, "%hhu %u",
		     &twt_cfg.param.twt_information.flow_identifier, &suspend_duration);
	twt_cfg.param.twt_information.suspend_duration = cpu_to_le32(suspend_duration);

	twt_cfg.sub_id = NXPWIFI_11AX_TWT_INFORMATION_SUBID;
	ret = nxpwifi_send_cmd(priv, HOST_CMD_TWT_CFG, HOST_ACT_GEN_SET, 0,
			       &twt_cfg, true);

	if (!ret)
		ret = count;

	kfree(buf);
	return ret;
}

#define NXPWIFI_DFS_ADD_FILE(name) debugfs_create_file(#name, 0644,     \
				   priv->dfs_dev_dir, priv,             \
				   &nxpwifi_dfs_##name##_fops)

#define NXPWIFI_DFS_FILE_OPS(name)                                      \
static const struct file_operations nxpwifi_dfs_##name##_fops = {       \
	.read = nxpwifi_##name##_read,                                  \
	.write = nxpwifi_##name##_write,                                \
	.open = simple_open,                                            \
}

#define NXPWIFI_DFS_FILE_READ_OPS(name)                                 \
static const struct file_operations nxpwifi_dfs_##name##_fops = {       \
	.read = nxpwifi_##name##_read,                                  \
	.open = simple_open,                                            \
}

#define NXPWIFI_DFS_FILE_WRITE_OPS(name)                                \
static const struct file_operations nxpwifi_dfs_##name##_fops = {       \
	.write = nxpwifi_##name##_write,                                \
	.open = simple_open,                                            \
}

NXPWIFI_DFS_FILE_READ_OPS(info);
NXPWIFI_DFS_FILE_READ_OPS(debug);
NXPWIFI_DFS_FILE_READ_OPS(getlog);
NXPWIFI_DFS_FILE_OPS(regrdwr);
NXPWIFI_DFS_FILE_OPS(rdeeprom);
NXPWIFI_DFS_FILE_OPS(memrw);
NXPWIFI_DFS_FILE_OPS(hscfg);
NXPWIFI_DFS_FILE_OPS(histogram);
NXPWIFI_DFS_FILE_OPS(debug_mask);
NXPWIFI_DFS_FILE_OPS(timeshare_coex);
NXPWIFI_DFS_FILE_WRITE_OPS(reset);
NXPWIFI_DFS_FILE_WRITE_OPS(fake_radar_detect);
NXPWIFI_DFS_FILE_OPS(verext);
NXPWIFI_DFS_FILE_WRITE_OPS(netmon);
NXPWIFI_DFS_FILE_WRITE_OPS(twt_setup);
NXPWIFI_DFS_FILE_WRITE_OPS(twt_teardown);
NXPWIFI_DFS_FILE_READ_OPS(twt_report);
NXPWIFI_DFS_FILE_WRITE_OPS(twt_information);

/* Create per-netdev debugfs directory and files. */
void
nxpwifi_dev_debugfs_init(struct nxpwifi_private *priv)
{
	if (!nxpwifi_dfs_dir || !priv)
		return;

	priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
					       nxpwifi_dfs_dir);

	NXPWIFI_DFS_ADD_FILE(info);
	NXPWIFI_DFS_ADD_FILE(debug);
	NXPWIFI_DFS_ADD_FILE(getlog);
	NXPWIFI_DFS_ADD_FILE(regrdwr);
	NXPWIFI_DFS_ADD_FILE(rdeeprom);

	NXPWIFI_DFS_ADD_FILE(memrw);
	NXPWIFI_DFS_ADD_FILE(hscfg);
	NXPWIFI_DFS_ADD_FILE(histogram);
	NXPWIFI_DFS_ADD_FILE(debug_mask);
	NXPWIFI_DFS_ADD_FILE(timeshare_coex);
	NXPWIFI_DFS_ADD_FILE(reset);
	NXPWIFI_DFS_ADD_FILE(fake_radar_detect);
	NXPWIFI_DFS_ADD_FILE(verext);
	NXPWIFI_DFS_ADD_FILE(netmon);
	NXPWIFI_DFS_ADD_FILE(twt_setup);
	NXPWIFI_DFS_ADD_FILE(twt_teardown);
	NXPWIFI_DFS_ADD_FILE(twt_report);
	NXPWIFI_DFS_ADD_FILE(twt_information);
}

/* Remove per-netdev debugfs directory and files. */
void
nxpwifi_dev_debugfs_remove(struct nxpwifi_private *priv)
{
	if (!priv)
		return;

	debugfs_remove_recursive(priv->dfs_dev_dir);
}

/* Create top-level debugfs directory. */
void
nxpwifi_debugfs_init(void)
{
	if (!nxpwifi_dfs_dir)
		nxpwifi_dfs_dir = debugfs_create_dir("nxpwifi", NULL);
}

/* Remove top-level debugfs directory. */
void
nxpwifi_debugfs_remove(void)
{
	debugfs_remove(nxpwifi_dfs_dir);
}