Exemple #1
0
static void wil_disconnect_cid(struct wil6210_priv *wil, int cid)
{
	uint i;
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;
	struct wil_sta_info *sta = &wil->sta[cid];
	wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid,
		     sta->status);

	sta->data_port_open = false;
	if (sta->status != wil_sta_unused) {
		wmi_disconnect_sta(wil, sta->addr, WLAN_REASON_DEAUTH_LEAVING);
		switch (wdev->iftype) {
		case NL80211_IFTYPE_AP:
		case NL80211_IFTYPE_P2P_GO:
			/* AP-like interface */
			cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL);
			break;
		default:
			break;
		}
		sta->status = wil_sta_unused;
	}

	for (i = 0; i < WIL_STA_TID_NUM; i++) {
		struct wil_tid_ampdu_rx *r = sta->tid_rx[i];
		sta->tid_rx[i] = NULL;
		wil_tid_ampdu_rx_free(wil, r);
	}
	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
		if (wil->vring2cid_tid[i][0] == cid)
			wil_vring_fini_tx(wil, i);
	}
	memset(&sta->stats, 0, sizeof(sta->stats));
}
Exemple #2
0
static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
				   size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wireless_dev *wdev = wil_to_wdev(wil);
	struct net_device *ndev = wil_to_ndev(wil);

	if (*ppos != 0) {
		wil_err(wil, "Unable to set SSID substring from [%d]\n",
			(int)*ppos);
		return -EINVAL;
	}

	if (count > sizeof(wdev->ssid)) {
		wil_err(wil, "SSID too long, len = %d\n", (int)count);
		return -EINVAL;
	}
	if (netif_running(ndev)) {
		wil_err(wil, "Unable to change SSID on running interface\n");
		return -EINVAL;
	}

	wdev->ssid_len = count;
	return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
				      buf, count);
}
Exemple #3
0
void wil_if_free(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_misc(wil, "%s()\n", __func__);

	if (!ndev)
		return;

	wil_priv_deinit(wil);

	wil_to_ndev(wil) = NULL;
	free_netdev(ndev);

	wil_wdev_free(wil);
}
static void _wil6210_disconnect(struct wil6210_priv *wil, void *bssid)
{
	uint i;
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;

	wil_dbg_misc(wil, "%s()\n", __func__);

	wil_link_off(wil);
	clear_bit(wil_status_fwconnected, &wil->status);

	switch (wdev->sme_state) {
	case CFG80211_SME_CONNECTED:
		cfg80211_disconnected(ndev, WLAN_STATUS_UNSPECIFIED_FAILURE,
				      NULL, 0, GFP_KERNEL);
		break;
	case CFG80211_SME_CONNECTING:
		cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
					WLAN_STATUS_UNSPECIFIED_FAILURE,
					GFP_KERNEL);
		break;
	default:
		break;
	}

	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++)
		wil_vring_fini_tx(wil, i);

	clear_bit(wil_status_dontscan, &wil->status);
}
Exemple #5
0
void wil_if_remove(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_misc(wil, "%s()\n", __func__);

	unregister_netdev(ndev);
}
void wil_link_off(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_misc(wil, "%s()\n", __func__);

	netif_tx_stop_all_queues(ndev);
	netif_carrier_off(ndev);
}
Exemple #7
0
void wil_link_on(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_misc(wil, "%s()\n", __func__);

	netif_carrier_on(ndev);
	wil_dbg_misc(wil, "netif_tx_wake : link on\n");
	netif_tx_wake_all_queues(ndev);
}
Exemple #8
0
void wil_if_free(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	if (!ndev)
		return;

	free_netdev(ndev);
	wil_priv_deinit(wil);
	wil_wdev_free(wil);
}
Exemple #9
0
static int __wil_up(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;
	int rc;

	WARN_ON(!mutex_is_locked(&wil->mutex));

	rc = wil_reset(wil);
	if (rc)
		return rc;

	/* Rx VRING. After MAC and beacon */
	rc = wil_rx_init(wil);
	if (rc)
		return rc;

	switch (wdev->iftype) {
	case NL80211_IFTYPE_STATION:
		wil_dbg_misc(wil, "type: STATION\n");
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_AP:
		wil_dbg_misc(wil, "type: AP\n");
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		wil_dbg_misc(wil, "type: P2P_CLIENT\n");
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_P2P_GO:
		wil_dbg_misc(wil, "type: P2P_GO\n");
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_MONITOR:
		wil_dbg_misc(wil, "type: Monitor\n");
		ndev->type = ARPHRD_IEEE80211_RADIOTAP;
		/* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
		break;
	default:
		return -EOPNOTSUPP;
	}

	/* MAC address - pre-requisite for other commands */
	wmi_set_mac_address(wil, ndev->dev_addr);


	napi_enable(&wil->napi_rx);
	napi_enable(&wil->napi_tx);
	set_bit(wil_status_napi_en, &wil->status);

	return 0;
}
Exemple #10
0
void __wil_info(struct wil6210_priv *wil, const char *fmt, ...)
{
	struct net_device *ndev = wil_to_ndev(wil);
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;

	va_start(args, fmt);
	vaf.va = &args;
	netdev_info(ndev, "%pV", &vaf);
	trace_wil6210_log_info(&vaf);
	va_end(args);
}
Exemple #11
0
int wil_if_add(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	int rc;

	wil_dbg_misc(wil, "%s()\n", __func__);

	rc = register_netdev(ndev);
	if (rc < 0) {
		dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
		return rc;
	}

	return 0;
}
Exemple #12
0
int wil_if_add(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	int rc;

	rc = register_netdev(ndev);
	if (rc < 0) {
		dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
		return rc;
	}

	wil_link_off(wil);

	return 0;
}
Exemple #13
0
void wil_dbg_ratelimited(const struct wil6210_priv *wil, const char *fmt, ...)
{
	struct va_format vaf;
	va_list args;

	if (!net_ratelimit())
		return;

	va_start(args, fmt);
	vaf.fmt = fmt;
	vaf.va = &args;
	netdev_dbg(wil_to_ndev(wil), "%pV", &vaf);
	trace_wil6210_log_dbg(&vaf);
	va_end(args);
}
Exemple #14
0
void __wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...)
{
	if (net_ratelimit()) {
		struct net_device *ndev = wil_to_ndev(wil);
		struct va_format vaf = {
			.fmt = fmt,
		};
		va_list args;

		va_start(args, fmt);
		vaf.va = &args;
		netdev_err(ndev, "%pV", &vaf);
		trace_wil6210_log_err(&vaf);
		va_end(args);
	}
}
Exemple #15
0
static int wil_suspend_radio_off(struct wil6210_priv *wil)
{
	int rc = 0;
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_pm(wil, "suspend radio off\n");

	set_bit(wil_status_suspending, wil->status);
	if (test_bit(wil_status_collecting_dumps, wil->status)) {
		/* Device collects crash dump, cancel the suspend */
		wil_dbg_pm(wil, "reject suspend while collecting crash dump\n");
		clear_bit(wil_status_suspending, wil->status);
		wil->suspend_stats.rejected_by_host++;
		return -EBUSY;
	}

	/* if netif up, hardware is alive, shut it down */
	if (ndev->flags & IFF_UP) {
		rc = wil_down(wil);
		if (rc) {
			wil_err(wil, "wil_down : %d\n", rc);
			wil->suspend_stats.r_off.failed_suspends++;
			goto out;
		}
	}

	/* Disable PCIe IRQ to prevent sporadic IRQs when PCIe is suspending */
	wil_dbg_pm(wil, "Disabling PCIe IRQ before suspending\n");
	wil_disable_irq(wil);

	if (wil->platform_ops.suspend) {
		rc = wil->platform_ops.suspend(wil->platform_handle, false);
		if (rc) {
			wil_enable_irq(wil);
			wil->suspend_stats.r_off.failed_suspends++;
			goto out;
		}
	}

	set_bit(wil_status_suspended, wil->status);

out:
	clear_bit(wil_status_suspending, wil->status);
	wil_dbg_pm(wil, "suspend radio off: %d\n", rc);

	return rc;
}
Exemple #16
0
static int wil_resume_radio_off(struct wil6210_priv *wil)
{
	int rc = 0;
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_pm(wil, "Enabling PCIe IRQ\n");
	wil_enable_irq(wil);
	/* if netif up, bring hardware up
	 * During open(), IFF_UP set after actual device method
	 * invocation. This prevent recursive call to wil_up()
	 * wil_status_suspended will be cleared in wil_reset
	 */
	if (ndev->flags & IFF_UP)
		rc = wil_up(wil);
	else
		clear_bit(wil_status_suspended, wil->status);

	return rc;
}
Exemple #17
0
/*---reset---*/
static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
				    size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct net_device *ndev = wil_to_ndev(wil);

	/**
	 * BUG:
	 * this code does NOT sync device state with the rest of system
	 * use with care, debug only!!!
	 */
	rtnl_lock();
	dev_close(ndev);
	ndev->flags &= ~IFF_UP;
	rtnl_unlock();
	wil_reset(wil, true);

	return len;
}
Exemple #18
0
static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid)
{
	int cid = -ENOENT;
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;

	might_sleep();
	if (bssid) {
		cid = wil_find_cid(wil, bssid);
		wil_dbg_misc(wil, "%s(%pM, CID %d)\n", __func__, bssid, cid);
	} else {
		wil_dbg_misc(wil, "%s(all)\n", __func__);
	}

	if (cid >= 0) /* disconnect 1 peer */
		wil_disconnect_cid(wil, cid);
	else /* disconnect all */
		for (cid = 0; cid < WIL6210_MAX_CID; cid++)
			wil_disconnect_cid(wil, cid);

	/* link state */
	switch (wdev->iftype) {
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_P2P_CLIENT:
		wil_link_off(wil);
		if (test_bit(wil_status_fwconnected, &wil->status)) {
			clear_bit(wil_status_fwconnected, &wil->status);
			cfg80211_disconnected(ndev,
					      WLAN_STATUS_UNSPECIFIED_FAILURE,
					      NULL, 0, GFP_KERNEL);
		} else if (test_bit(wil_status_fwconnecting, &wil->status)) {
			cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
						WLAN_STATUS_UNSPECIFIED_FAILURE,
						GFP_KERNEL);
		}
		clear_bit(wil_status_fwconnecting, &wil->status);
		break;
	default:
		break;
	}
}
Exemple #19
0
/*
 * Write mgmt frame to this file to send it
 */
static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
				     size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
#if 0
	struct net_device *ndev = wil_to_ndev(wil);
#endif
	struct wiphy *wiphy = wil_to_wiphy(wil);
	struct wireless_dev *wdev = wil_to_wdev(wil);
	int rc;
	void *frame = kmalloc(len, GFP_KERNEL);
	if (!frame)
		return -ENOMEM;
	if (copy_from_user(frame, buf, len))
		return -EIO;
#if 0
	rc = wmi_set_channel(wil, 1);
	if (rc)
		return rc;
	rc = wmi_call(wil, WMI_RX_ON_CMDID, NULL, 0,
		      WMI_RX_ON_DONE_EVENTID, NULL, 0, 20);
	if (rc)
		return rc;
#endif
	rc = wil_cfg80211_mgmt_tx(wiphy, wdev, wdev->preset_chandef.chan,
				  true, 0, frame,
				  len, true, false, NULL);
	kfree(frame);
	wil_info(wil, "%s() -> %d\n", __func__, rc);
#if 0
	msleep(300);
	rtnl_lock();
	dev_close(ndev);
	ndev->flags &= ~IFF_UP;
	rtnl_unlock();
	wil_reset(wil);
#endif
	return len;
}
Exemple #20
0
/*---------info------------*/
static int wil_info_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct net_device *ndev = wil_to_ndev(wil);
	int is_ac = power_supply_is_system_supplied();
	int rx = atomic_xchg(&wil->isr_count_rx, 0);
	int tx = atomic_xchg(&wil->isr_count_tx, 0);
	static ulong rxf_old, txf_old;
	ulong rxf = ndev->stats.rx_packets;
	ulong txf = ndev->stats.tx_packets;
	unsigned int i;

	/* >0 : AC; 0 : battery; <0 : error */
	seq_printf(s, "AC powered : %d\n", is_ac);
	seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
	seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
	rxf_old = rxf;
	txf_old = txf;


#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
	" " __stringify(x) : ""

	for (i = 0; i < ndev->num_tx_queues; i++) {
		struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
		unsigned long state = txq->state;

		seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
			   CHECK_QSTATE(DRV_XOFF),
			   CHECK_QSTATE(STACK_XOFF),
			   CHECK_QSTATE(FROZEN)
			  );
	}
#undef CHECK_QSTATE
	return 0;
}
Exemple #21
0
static void _wil6210_disconnect(struct wil6210_priv *wil, void *bssid)
{
	int cid = -ENOENT;
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;

	might_sleep();
	if (bssid) {
		cid = wil_find_cid(wil, bssid);
		wil_dbg_misc(wil, "%s(%pM, CID %d)\n", __func__, bssid, cid);
	} else {
		wil_dbg_misc(wil, "%s(all)\n", __func__);
	}

	if (cid >= 0) /* disconnect 1 peer */
		wil_disconnect_cid(wil, cid);
	else {/* disconnect all */

		/*
		 * BUG FIX: Disconnect single sta only
		 *          We may get to here few times 
		 *          with BSSID address
		*/
		if(ndev->dev_addr && bssid) {	
			if(ether_addr_equal(ndev->dev_addr, bssid) ) {
				for (cid = 0; cid < WIL6210_MAX_CID; cid++)
					wil_disconnect_cid(wil, cid);
				}
		}
	}
	/* link state */
	switch (wdev->iftype) {
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_P2P_CLIENT:
		wil_link_off(wil);
		clear_bit(wil_status_fwconnected, &wil->status);

		switch (wdev->sme_state) {
		case CFG80211_SME_CONNECTED:
			cfg80211_disconnected(ndev,
					      WLAN_STATUS_UNSPECIFIED_FAILURE,
					      NULL, 0, GFP_KERNEL);
			break;
		case CFG80211_SME_CONNECTING:
			cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
						WLAN_STATUS_UNSPECIFIED_FAILURE,
						GFP_KERNEL);
			break;
		default:
			break;
		}

		wil_dbg_misc(wil, "clear_bit(wil_status_dontscan)\n");
		clear_bit(wil_status_dontscan, &wil->status);
		break;
	default:
		/* AP-like interface and monitor:
		 * never scan, always connected
		 */
		if (bssid)
			cfg80211_del_sta(ndev, bssid, GFP_KERNEL);
		break;
	}
}
Exemple #22
0
void wil_if_remove(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	unregister_netdev(ndev);
}
Exemple #23
0
int wil_can_suspend(struct wil6210_priv *wil, bool is_runtime)
{
	int rc = 0;
	struct wireless_dev *wdev = wil->wdev;
	struct net_device *ndev = wil_to_ndev(wil);
	bool wmi_only = test_bit(WMI_FW_CAPABILITY_WMI_ONLY,
				 wil->fw_capabilities);

	wil_dbg_pm(wil, "can_suspend: %s\n", is_runtime ? "runtime" : "system");

	if (wmi_only || debug_fw) {
		wil_dbg_pm(wil, "Deny any suspend - %s mode\n",
			   wmi_only ? "wmi_only" : "debug_fw");
		rc = -EBUSY;
		goto out;
	}
	if (is_runtime && !wil->platform_ops.suspend) {
		rc = -EBUSY;
		goto out;
	}
	if (!(ndev->flags & IFF_UP)) {
		/* can always sleep when down */
		wil_dbg_pm(wil, "Interface is down\n");
		goto out;
	}
	if (test_bit(wil_status_resetting, wil->status)) {
		wil_dbg_pm(wil, "Delay suspend when resetting\n");
		rc = -EBUSY;
		goto out;
	}
	if (wil->recovery_state != fw_recovery_idle) {
		wil_dbg_pm(wil, "Delay suspend during recovery\n");
		rc = -EBUSY;
		goto out;
	}

	/* interface is running */
	switch (wdev->iftype) {
	case NL80211_IFTYPE_MONITOR:
		wil_dbg_pm(wil, "Sniffer\n");
		rc = -EBUSY;
		goto out;
	/* for STA-like interface, don't runtime suspend */
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_P2P_CLIENT:
		if (test_bit(wil_status_fwconnecting, wil->status)) {
			wil_dbg_pm(wil, "Delay suspend when connecting\n");
			rc = -EBUSY;
			goto out;
		}
		/* Runtime pm not supported in case the interface is up */
		if (is_runtime) {
			wil_dbg_pm(wil, "STA-like interface\n");
			rc = -EBUSY;
			goto out;
		}
		break;
	/* AP-like interface - can't suspend */
	default:
		wil_dbg_pm(wil, "AP-like interface\n");
		rc = -EBUSY;
		break;
	}

out:
	wil_dbg_pm(wil, "can_suspend: %s => %s (%d)\n",
		   is_runtime ? "runtime" : "system", rc ? "No" : "Yes", rc);

	if (rc)
		wil->suspend_stats.rejected_by_host++;

	return rc;
}
Exemple #24
0
void wil_memcpy_toio_halp_vote(struct wil6210_priv *wil,
			       volatile void __iomem *dst,
			       const void *src, size_t count)
{
	wil_halp_vote(wil);
	wil_memcpy_toio_32(dst, src, count);
	wil_halp_unvote(wil);
}

static void wil_disconnect_cid(struct wil6210_priv *wil, int cid,
			       u16 reason_code, bool from_event)
__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
{
	uint i;
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;
	struct wil_sta_info *sta = &wil->sta[cid];

	might_sleep();
	wil_dbg_misc(wil, "disconnect_cid: CID %d, status %d\n",
		     cid, sta->status);
	/* inform upper/lower layers */
	if (sta->status != wil_sta_unused) {
		if (!from_event) {
			bool del_sta = (wdev->iftype == NL80211_IFTYPE_AP) ?
						disable_ap_sme : false;
			wmi_disconnect_sta(wil, sta->addr, reason_code,
					   true, del_sta);
		}
Exemple #25
0
static int wil_bf_debugfs_show(struct seq_file *s, void *data)
{
	int rc;
	int i;
	struct wil6210_priv *wil = s->private;
	struct wmi_notify_req_cmd cmd = {
		.interval_usec = 0,
	};
	struct {
		struct wmi_cmd_hdr wmi;
		struct wmi_notify_req_done_event evt;
	} __packed reply;

	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
		u32 status;

		cmd.cid = i;
		rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
			      WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
			      sizeof(reply), 20);
		/* if reply is all-0, ignore this CID */
		if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
			continue;

		status = le32_to_cpu(reply.evt.status);
		seq_printf(s, "CID %d {\n"
			   "  TSF = 0x%016llx\n"
			   "  TxMCS = %2d TxTpt = %4d\n"
			   "  SQI = %4d\n"
			   "  Status = 0x%08x %s\n"
			   "  Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
			   "  Goodput(rx:tx) %4d:%4d\n"
			   "}\n",
			   i,
			   le64_to_cpu(reply.evt.tsf),
			   le16_to_cpu(reply.evt.bf_mcs),
			   le32_to_cpu(reply.evt.tx_tpt),
			   reply.evt.sqi,
			   status, wil_bfstatus_str(status),
			   le16_to_cpu(reply.evt.my_rx_sector),
			   le16_to_cpu(reply.evt.my_tx_sector),
			   le16_to_cpu(reply.evt.other_rx_sector),
			   le16_to_cpu(reply.evt.other_tx_sector),
			   le32_to_cpu(reply.evt.rx_goodput),
			   le32_to_cpu(reply.evt.tx_goodput));
	}
	return 0;
}

static int wil_bf_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_bf_debugfs_show, inode->i_private);
}

static const struct file_operations fops_bf = {
	.open		= wil_bf_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------SSID------------*/
static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
				  size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wireless_dev *wdev = wil_to_wdev(wil);

	return simple_read_from_buffer(user_buf, count, ppos,
				       wdev->ssid, wdev->ssid_len);
}

static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
				   size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wireless_dev *wdev = wil_to_wdev(wil);
	struct net_device *ndev = wil_to_ndev(wil);

	if (*ppos != 0) {
		wil_err(wil, "Unable to set SSID substring from [%d]\n",
			(int)*ppos);
		return -EINVAL;
	}

	if (count > sizeof(wdev->ssid)) {
		wil_err(wil, "SSID too long, len = %d\n", (int)count);
		return -EINVAL;
	}
	if (netif_running(ndev)) {
		wil_err(wil, "Unable to change SSID on running interface\n");
		return -EINVAL;
	}

	wdev->ssid_len = count;
	return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
				      buf, count);
}

static const struct file_operations fops_ssid = {
	.read = wil_read_file_ssid,
	.write = wil_write_file_ssid,
	.open  = simple_open,
};

/*---------temp------------*/
static void print_temp(struct seq_file *s, const char *prefix, u32 t)
{
	switch (t) {
	case 0:
	case ~(u32)0:
		seq_printf(s, "%s N/A\n", prefix);
	break;
	default:
		seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
		break;
	}
}

static int wil_temp_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	u32 t_m, t_r;
	int rc = wmi_get_temperature(wil, &t_m, &t_r);

	if (rc) {
		seq_puts(s, "Failed\n");
		return 0;
	}

	print_temp(s, "T_mac   =", t_m);
	print_temp(s, "T_radio =", t_r);

	return 0;
}

static int wil_temp_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_temp_debugfs_show, inode->i_private);
}

static const struct file_operations fops_temp = {
	.open		= wil_temp_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------freq------------*/
static int wil_freq_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct wireless_dev *wdev = wil_to_wdev(wil);
	u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;

	seq_printf(s, "Freq = %d\n", freq);

	return 0;
}

static int wil_freq_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_freq_debugfs_show, inode->i_private);
}

static const struct file_operations fops_freq = {
	.open		= wil_freq_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------link------------*/
static int wil_link_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct station_info sinfo;
	int i, rc;

	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
		struct wil_sta_info *p = &wil->sta[i];
		char *status = "unknown";

		switch (p->status) {
		case wil_sta_unused:
			status = "unused   ";
			break;
		case wil_sta_conn_pending:
			status = "pending  ";
			break;
		case wil_sta_connected:
			status = "connected";
			break;
		}
		seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);

		if (p->status == wil_sta_connected) {
			rc = wil_cid_fill_sinfo(wil, i, &sinfo);
			if (rc)
				return rc;

			seq_printf(s, "  Tx_mcs = %d\n", sinfo.txrate.mcs);
			seq_printf(s, "  Rx_mcs = %d\n", sinfo.rxrate.mcs);
			seq_printf(s, "  SQ     = %d\n", sinfo.signal);
		}
	}

	return 0;
}

static int wil_link_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_link_debugfs_show, inode->i_private);
}

static const struct file_operations fops_link = {
	.open		= wil_link_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------info------------*/
static int wil_info_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct net_device *ndev = wil_to_ndev(wil);
	int is_ac = power_supply_is_system_supplied();
	int rx = atomic_xchg(&wil->isr_count_rx, 0);
	int tx = atomic_xchg(&wil->isr_count_tx, 0);
	static ulong rxf_old, txf_old;
	ulong rxf = ndev->stats.rx_packets;
	ulong txf = ndev->stats.tx_packets;
	unsigned int i;

	/* >0 : AC; 0 : battery; <0 : error */
	seq_printf(s, "AC powered : %d\n", is_ac);
	seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
	seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
	rxf_old = rxf;
	txf_old = txf;

#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
	" " __stringify(x) : ""

	for (i = 0; i < ndev->num_tx_queues; i++) {
		struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
		unsigned long state = txq->state;

		seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
			   CHECK_QSTATE(DRV_XOFF),
			   CHECK_QSTATE(STACK_XOFF),
			   CHECK_QSTATE(FROZEN)
			  );
	}
#undef CHECK_QSTATE
	return 0;
}

static int wil_info_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_info_debugfs_show, inode->i_private);
}

static const struct file_operations fops_info = {
	.open		= wil_info_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------recovery------------*/
/* mode = [manual|auto]
 * state = [idle|pending|running]
 */
static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	char buf[80];
	int n;
	static const char * const sstate[] = {"idle", "pending", "running"};

	n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
		     no_fw_recovery ? "manual" : "auto",
		     sstate[wil->recovery_state]);

	n = min_t(int, n, sizeof(buf));

	return simple_read_from_buffer(user_buf, count, ppos,
				       buf, n);
}

static ssize_t wil_write_file_recovery(struct file *file,
				       const char __user *buf_,
				       size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	static const char run_command[] = "run";
	char buf[sizeof(run_command) + 1]; /* to detect "runx" */
	ssize_t rc;

	if (wil->recovery_state != fw_recovery_pending) {
		wil_err(wil, "No recovery pending\n");
		return -EINVAL;
	}

	if (*ppos != 0) {
		wil_err(wil, "Offset [%d]\n", (int)*ppos);
		return -EINVAL;
	}

	if (count > sizeof(buf)) {
		wil_err(wil, "Input too long, len = %d\n", (int)count);
		return -EINVAL;
	}

	rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
	if (rc < 0)
		return rc;

	buf[rc] = '\0';
	if (0 == strcmp(buf, run_command))
		wil_set_recovery_state(wil, fw_recovery_running);
	else
		wil_err(wil, "Bad recovery command \"%s\"\n", buf);

	return rc;
}

static const struct file_operations fops_recovery = {
	.read = wil_read_file_recovery,
	.write = wil_write_file_recovery,
	.open  = simple_open,
};

/*---------Station matrix------------*/
static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
{
	int i;
	u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
	unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;

	seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
		   r->head_seq_num);
	for (i = 0; i < r->buf_size; i++) {
		if (i == index)
			seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
		else
			seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
	}
	seq_printf(s,
		   "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n",
		   r->total, drop_dup + drop_old, drop_dup, drop_old,
		   r->ssn_last_drop);
}
static int __wil_up(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil->wdev;
	struct ieee80211_channel *channel = wdev->preset_chandef.chan;
	int rc;
	int bi;
	u16 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);

	rc = wil_reset(wil);
	if (rc)
		return rc;

	/* FIXME Firmware works now in PBSS mode(ToDS=0, FromDS=0) */
	wmi_nettype = wil_iftype_nl2wmi(NL80211_IFTYPE_ADHOC);
	switch (wdev->iftype) {
	case NL80211_IFTYPE_STATION:
		wil_dbg_misc(wil, "type: STATION\n");
		bi = 0;
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_AP:
		wil_dbg_misc(wil, "type: AP\n");
		bi = 100;
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		wil_dbg_misc(wil, "type: P2P_CLIENT\n");
		bi = 0;
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_P2P_GO:
		wil_dbg_misc(wil, "type: P2P_GO\n");
		bi = 100;
		ndev->type = ARPHRD_ETHER;
		break;
	case NL80211_IFTYPE_MONITOR:
		wil_dbg_misc(wil, "type: Monitor\n");
		bi = 0;
		ndev->type = ARPHRD_IEEE80211_RADIOTAP;
		/* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
		break;
	default:
		return -EOPNOTSUPP;
	}

	/* Apply profile in the following order: */
	/* SSID and channel for the AP */
	switch (wdev->iftype) {
	case NL80211_IFTYPE_AP:
	case NL80211_IFTYPE_P2P_GO:
		if (wdev->ssid_len == 0) {
			wil_err(wil, "SSID not set\n");
			return -EINVAL;
		}
		rc = wmi_set_ssid(wil, wdev->ssid_len, wdev->ssid);
		if (rc)
			return rc;
		break;
	default:
		break;
	}

	/* MAC address - pre-requisite for other commands */
	wmi_set_mac_address(wil, ndev->dev_addr);

	/* Set up beaconing if required. */
	if (bi > 0) {
		rc = wmi_pcp_start(wil, bi, wmi_nettype,
				   (channel ? channel->hw_value : 0));
		if (rc)
			return rc;
	}

	/* Rx VRING. After MAC and beacon */
	wil_rx_init(wil);

	return 0;
}