Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 15802 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/libertas/Kconfig b/drivers/net/wireless/marvell/libertas/Kconfig
new file mode 100644
index 0000000000..c7d02adb3e
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/Kconfig
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config LIBERTAS
+	tristate "Marvell 8xxx Libertas WLAN driver support"
+	depends on CFG80211
+	select LIB80211
+	select FW_LOADER
+	help
+	  A library for Marvell Libertas 8xxx devices.
+
+config LIBERTAS_USB
+	tristate "Marvell Libertas 8388 USB 802.11b/g cards"
+	depends on LIBERTAS && USB
+	help
+	  A driver for Marvell Libertas 8388 USB devices.
+
+config LIBERTAS_CS
+	tristate "Marvell Libertas 8385 CompactFlash 802.11b/g cards"
+	depends on LIBERTAS && PCMCIA && HAS_IOPORT_MAP
+	help
+	  A driver for Marvell Libertas 8385 CompactFlash devices.
+
+config LIBERTAS_SDIO
+	tristate "Marvell Libertas 8385/8686/8688 SDIO 802.11b/g cards"
+	depends on LIBERTAS && MMC
+	help
+	  A driver for Marvell Libertas 8385/8686/8688 SDIO devices.
+
+config LIBERTAS_SPI
+	tristate "Marvell Libertas 8686 SPI 802.11b/g cards"
+	depends on LIBERTAS && SPI
+	help
+	  A driver for Marvell Libertas 8686 SPI devices.
+
+config LIBERTAS_DEBUG
+	bool "Enable full debugging output in the Libertas module."
+	depends on LIBERTAS
+	help
+	  Debugging support.
+
+config LIBERTAS_MESH
+	bool "Enable mesh support"
+	depends on LIBERTAS
+	help
+	  This enables Libertas' MESH support, used by e.g. the OLPC people.
diff --git a/drivers/net/wireless/marvell/libertas/LICENSE b/drivers/net/wireless/marvell/libertas/LICENSE
new file mode 100644
index 0000000000..8862742213
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/LICENSE
@@ -0,0 +1,16 @@
+  Copyright (c) 2003-2006, Marvell International Ltd.
+  All Rights Reserved
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2 of the GNU General Public License as
+  published by the Free Software Foundation.
+
+  This program is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc., 59
+  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
diff --git a/drivers/net/wireless/marvell/libertas/Makefile b/drivers/net/wireless/marvell/libertas/Makefile
new file mode 100644
index 0000000000..41b9b440a5
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/Makefile
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+libertas-y += cfg.o
+libertas-y += cmd.o
+libertas-y += cmdresp.o
+libertas-y += debugfs.o
+libertas-y += ethtool.o
+libertas-y += main.o
+libertas-y += rx.o
+libertas-y += tx.o
+libertas-y += firmware.o
+libertas-$(CONFIG_LIBERTAS_MESH) += mesh.o
+
+usb8xxx-objs += if_usb.o
+libertas_cs-objs += if_cs.o
+libertas_sdio-objs += if_sdio.o
+libertas_spi-objs += if_spi.o
+
+obj-$(CONFIG_LIBERTAS)     += libertas.o
+obj-$(CONFIG_LIBERTAS_USB) += usb8xxx.o
+obj-$(CONFIG_LIBERTAS_CS)  += libertas_cs.o
+obj-$(CONFIG_LIBERTAS_SDIO) += libertas_sdio.o
+obj-$(CONFIG_LIBERTAS_SPI) += libertas_spi.o
diff --git a/drivers/net/wireless/marvell/libertas/README b/drivers/net/wireless/marvell/libertas/README
new file mode 100644
index 0000000000..1a554a685e
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/README
@@ -0,0 +1,239 @@
+================================================================================
+			README for Libertas
+
+ (c) Copyright © 2003-2006, Marvell International Ltd.
+ All Rights Reserved
+
+ This software file (the "File") is distributed by Marvell International
+ Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ (the "License").  You may use, redistribute and/or modify this File in
+ accordance with the terms and conditions of the License, a copy of which
+ is available along with the File in the license.txt file or on the worldwide
+ web at http://www.gnu.org/licenses/gpl.txt.
+
+ THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ this warranty disclaimer.
+================================================================================
+
+=====================
+DRIVER LOADING
+=====================
+
+	o. Copy the firmware image (e.g. usb8388.bin) to /lib/firmware/
+
+	o. Load driver by using the following command:
+
+		insmod usb8388.ko [fw_name=usb8388.bin]
+
+=========================
+ETHTOOL
+=========================
+
+
+Use the -i option to retrieve version information from the driver.
+
+# ethtool -i eth0
+driver: libertas
+version: COMM-USB8388-318.p4
+firmware-version: 5.110.7
+bus-info:
+
+Use the -e option to read the EEPROM contents of the card.
+
+	Usage:
+	ethtool -e ethX [raw on|off] [offset N] [length N]
+
+       -e     retrieves and prints an EEPROM dump for the  specified  ethernet
+              device.   When raw is enabled, then it dumps the raw EEPROM data
+              to stdout. The length and offset parameters allow  dumping  cer-
+              tain portions of the EEPROM.  Default is to dump the entire EEP-
+              ROM.
+
+# ethtool -e eth0 offset 0 length 16
+Offset          Values
+------          ------
+0x0000          38 33 30 58 00 00 34 f4 00 00 10 00 00 c4 17 00
+
+========================
+DEBUGFS COMMANDS
+========================
+
+those commands are used via debugfs interface
+
+===========
+rdmac
+rdbbp
+rdrf
+	These commands are used to read the MAC, BBP and RF registers from the
+	card.  These commands take one parameter that specifies the offset
+	location that is to be read.  This parameter must be specified in
+	hexadecimal (its possible to precede preceding the number with a "0x").
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/registers/
+
+	Usage:
+		echo "0xa123" > rdmac ; cat rdmac
+		echo "0xa123" > rdbbp ; cat rdbbp
+		echo "0xa123" > rdrf ; cat rdrf
+wrmac
+wrbbp
+wrrf
+	These commands are used to write the MAC, BBP and RF registers in the
+	card.  These commands take two parameters that specify the offset
+	location and the value that is to be written. This parameters must
+	be specified in hexadecimal (its possible to precede the number
+	with a "0x").
+
+	Usage:
+		echo "0xa123 0xaa" > wrmac
+		echo "0xa123 0xaa" > wrbbp
+		echo "0xa123 0xaa" > wrrf
+
+sleepparams
+	This command is used to set the sleepclock configurations
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+	Usage:
+		cat sleepparams: reads the current sleepclock configuration
+
+		echo "p1 p2 p3 p4 p5 p6" > sleepparams: writes the sleepclock configuration.
+
+		where:
+			p1 is Sleep clock error in ppm (0-65535)
+			p2 is Wakeup offset in usec (0-65535)
+			p3 is Clock stabilization time in usec (0-65535)
+			p4 is Control periodic calibration (0-2)
+			p5 is Control the use of external sleep clock (0-2)
+			p6 is reserved for debug (0-65535)
+
+subscribed_events
+
+	The subscribed_events directory contains the interface for the
+	subscribed events API.
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/subscribed_events/
+
+	Each event is represented by a filename. Each filename consists of the
+	following three fields:
+	Value Frequency Subscribed
+
+	To read the current values for a given event, do:
+		cat event
+	To set the current values, do:
+		echo "60 2 1" > event
+
+	Frequency field specifies the reporting frequency for this event.
+	If it is set to 0, then the event is reported only once, and then
+	automatically unsubscribed. If it is set to 1, then the event is
+	reported every time it occurs. If it is set to N, then the event is
+	reported every Nth time it occurs.
+
+	beacon_missed
+	Value field specifies the number of consecutive missing beacons which
+	triggers the LINK_LOSS event. This event is generated only once after
+	which the firmware resets its state. At initialization, the LINK_LOSS
+	event is subscribed by default. The default value of MissedBeacons is
+	60.
+
+	failure_count
+	Value field specifies the consecutive failure count threshold which
+	triggers the generation of the MAX_FAIL event. Once this event is
+	generated, the consecutive failure count is reset to 0.
+	At initialization, the MAX_FAIL event is NOT subscribed by
+	default.
+
+	high_rssi
+	This event is generated when the average received RSSI in beacons goes
+	above a threshold, specified by Value.
+
+	low_rssi
+	This event is generated when the average received RSSI in beacons goes
+	below a threshold, specified by Value.
+
+	high_snr
+	This event is generated when the average received SNR in beacons goes
+	above a threshold, specified by Value.
+
+	low_snr
+	This event is generated when the average received SNR in beacons goes
+	below a threshold, specified by Value.
+
+extscan
+	This command is used to do a specific scan.
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+	Usage: echo "SSID" > extscan
+
+	Example:
+		echo "LINKSYS-AP" > extscan
+
+	To see the results of use getscantable command.
+
+getscantable
+
+	Display the current contents of the driver scan table (ie. get the
+	scan results).
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+	Usage:
+		cat getscantable
+
+setuserscan
+	Initiate a customized scan and retrieve the results
+
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+    Usage:
+       echo "[ARGS]" > setuserscan
+
+         where [ARGS]:
+
+      bssid=xx:xx:xx:xx:xx:xx  specify a BSSID filter for the scan
+      ssid="[SSID]"            specify a SSID filter for the scan
+      keep=[0 or 1]            keep the previous scan results (1), discard (0)
+      dur=[scan time]          time to scan for each channel in milliseconds
+      type=[1,2,3]             BSS type: 1 (Infra), 2(Adhoc), 3(Any)
+
+    Any combination of the above arguments can be supplied on the command
+    line. If dur tokens are absent, the driver default setting will be used.
+    The bssid and ssid fields, if blank, will produce an unfiltered scan.
+    The type field will default to 3 (Any) and the keep field will default
+    to 0 (Discard).
+
+    Examples:
+    1) Perform a passive scan on all channels for 20 ms per channel:
+            echo "dur=20" > setuserscan
+
+    2) Perform an active scan for a specific SSID:
+            echo "ssid="TestAP"" > setuserscan
+
+    3) Scan all available channels (B/G, A bands) for a specific BSSID, keep
+       the current scan table intact, update existing or append new scan data:
+            echo "bssid=00:50:43:20:12:82 keep=1" > setuserscan
+
+    4) Scan for all infrastructure networks.
+       Keep the previous scan table intact. Update any duplicate BSSID/SSID
+       matches with the new scan data:
+            echo "type=1 keep=1" > setuserscan
+
+    All entries in the scan table (not just the new scan data when keep=1)
+    will be displayed upon completion by use of the getscantable ioctl.
+
+hostsleep
+	This command is used to enable/disable host sleep.
+	Note: Host sleep parameters should be configured using
+	"ethtool -s ethX wol X" command before enabling host sleep.
+
+	Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+	Usage:
+		cat hostsleep: reads the current hostsleep state
+		echo "1" > hostsleep : enable host sleep.
+		echo "0" > hostsleep : disable host sleep
+
diff --git a/drivers/net/wireless/marvell/libertas/cfg.c b/drivers/net/wireless/marvell/libertas/cfg.c
new file mode 100644
index 0000000000..b700c213d1
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -0,0 +1,2216 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Implement cfg80211 ("iw") support.
+ *
+ * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
+ * Holger Schurig <hs4233@mail.mn-solutions.de>
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/hardirq.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+#include <asm/unaligned.h>
+
+#include "decl.h"
+#include "cfg.h"
+#include "cmd.h"
+#include "mesh.h"
+
+
+#define CHAN2G(_channel, _freq, _flags) {        \
+	.band             = NL80211_BAND_2GHZ, \
+	.center_freq      = (_freq),             \
+	.hw_value         = (_channel),          \
+	.flags            = (_flags),            \
+	.max_antenna_gain = 0,                   \
+	.max_power        = 30,                  \
+}
+
+static struct ieee80211_channel lbs_2ghz_channels[] = {
+	CHAN2G(1,  2412, 0),
+	CHAN2G(2,  2417, 0),
+	CHAN2G(3,  2422, 0),
+	CHAN2G(4,  2427, 0),
+	CHAN2G(5,  2432, 0),
+	CHAN2G(6,  2437, 0),
+	CHAN2G(7,  2442, 0),
+	CHAN2G(8,  2447, 0),
+	CHAN2G(9,  2452, 0),
+	CHAN2G(10, 2457, 0),
+	CHAN2G(11, 2462, 0),
+	CHAN2G(12, 2467, 0),
+	CHAN2G(13, 2472, 0),
+	CHAN2G(14, 2484, 0),
+};
+
+#define RATETAB_ENT(_rate, _hw_value, _flags) { \
+	.bitrate  = (_rate),                    \
+	.hw_value = (_hw_value),                \
+	.flags    = (_flags),                   \
+}
+
+
+/* Table 6 in section 3.2.1.1 */
+static struct ieee80211_rate lbs_rates[] = {
+	RATETAB_ENT(10,  0,  0),
+	RATETAB_ENT(20,  1,  0),
+	RATETAB_ENT(55,  2,  0),
+	RATETAB_ENT(110, 3,  0),
+	RATETAB_ENT(60,  9,  0),
+	RATETAB_ENT(90,  6,  0),
+	RATETAB_ENT(120, 7,  0),
+	RATETAB_ENT(180, 8,  0),
+	RATETAB_ENT(240, 9,  0),
+	RATETAB_ENT(360, 10, 0),
+	RATETAB_ENT(480, 11, 0),
+	RATETAB_ENT(540, 12, 0),
+};
+
+static struct ieee80211_supported_band lbs_band_2ghz = {
+	.channels = lbs_2ghz_channels,
+	.n_channels = ARRAY_SIZE(lbs_2ghz_channels),
+	.bitrates = lbs_rates,
+	.n_bitrates = ARRAY_SIZE(lbs_rates),
+};
+
+
+static const u32 cipher_suites[] = {
+	WLAN_CIPHER_SUITE_WEP40,
+	WLAN_CIPHER_SUITE_WEP104,
+	WLAN_CIPHER_SUITE_TKIP,
+	WLAN_CIPHER_SUITE_CCMP,
+};
+
+/* Time to stay on the channel */
+#define LBS_DWELL_PASSIVE 100
+#define LBS_DWELL_ACTIVE  40
+
+
+/***************************************************************************
+ * Misc utility functions
+ *
+ * TLVs are Marvell specific. They are very similar to IEs, they have the
+ * same structure: type, length, data*. The only difference: for IEs, the
+ * type and length are u8, but for TLVs they're __le16.
+ */
+
+/*
+ * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
+ * in the firmware spec
+ */
+static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
+{
+	int ret = -ENOTSUPP;
+
+	switch (auth_type) {
+	case NL80211_AUTHTYPE_OPEN_SYSTEM:
+	case NL80211_AUTHTYPE_SHARED_KEY:
+		ret = auth_type;
+		break;
+	case NL80211_AUTHTYPE_AUTOMATIC:
+		ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
+		break;
+	case NL80211_AUTHTYPE_NETWORK_EAP:
+		ret = 0x80;
+		break;
+	default:
+		/* silence compiler */
+		break;
+	}
+	return ret;
+}
+
+
+/*
+ * Various firmware commands need the list of supported rates, but with
+ * the hight-bit set for basic rates
+ */
+static int lbs_add_rates(u8 *rates)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
+		u8 rate = lbs_rates[i].bitrate / 5;
+		if (rate == 0x02 || rate == 0x04 ||
+		    rate == 0x0b || rate == 0x16)
+			rate |= 0x80;
+		rates[i] = rate;
+	}
+	return ARRAY_SIZE(lbs_rates);
+}
+
+
+/***************************************************************************
+ * TLV utility functions
+ *
+ * TLVs are Marvell specific. They are very similar to IEs, they have the
+ * same structure: type, length, data*. The only difference: for IEs, the
+ * type and length are u8, but for TLVs they're __le16.
+ */
+
+
+/*
+ * Add ssid TLV
+ */
+#define LBS_MAX_SSID_TLV_SIZE			\
+	(sizeof(struct mrvl_ie_header)		\
+	 + IEEE80211_MAX_SSID_LEN)
+
+static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
+{
+	struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
+
+	/*
+	 * TLV-ID SSID  00 00
+	 * length       06 00
+	 * ssid         4d 4e 54 45 53 54
+	 */
+	ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
+	ssid_tlv->header.len = cpu_to_le16(ssid_len);
+	memcpy(ssid_tlv->ssid, ssid, ssid_len);
+	return sizeof(ssid_tlv->header) + ssid_len;
+}
+
+
+/*
+ * Add channel list TLV (section 8.4.2)
+ *
+ * Actual channel data comes from priv->wdev->wiphy->channels.
+ */
+#define LBS_MAX_CHANNEL_LIST_TLV_SIZE					\
+	(sizeof(struct mrvl_ie_header)					\
+	 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
+
+static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
+				    int last_channel, int active_scan)
+{
+	int chanscanparamsize = sizeof(struct chanscanparamset) *
+		(last_channel - priv->scan_channel);
+
+	struct mrvl_ie_header *header = (void *) tlv;
+
+	/*
+	 * TLV-ID CHANLIST  01 01
+	 * length           0e 00
+	 * channel          00 01 00 00 00 64 00
+	 *   radio type     00
+	 *   channel           01
+	 *   scan type            00
+	 *   min scan time           00 00
+	 *   max scan time                 64 00
+	 * channel 2        00 02 00 00 00 64 00
+	 *
+	 */
+
+	header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
+	header->len  = cpu_to_le16(chanscanparamsize);
+	tlv += sizeof(struct mrvl_ie_header);
+
+	/* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
+		     last_channel); */
+	memset(tlv, 0, chanscanparamsize);
+
+	while (priv->scan_channel < last_channel) {
+		struct chanscanparamset *param = (void *) tlv;
+
+		param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
+		param->channumber =
+			priv->scan_req->channels[priv->scan_channel]->hw_value;
+		if (active_scan) {
+			param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
+		} else {
+			param->chanscanmode.passivescan = 1;
+			param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
+		}
+		tlv += sizeof(struct chanscanparamset);
+		priv->scan_channel++;
+	}
+	return sizeof(struct mrvl_ie_header) + chanscanparamsize;
+}
+
+
+/*
+ * Add rates TLV
+ *
+ * The rates are in lbs_bg_rates[], but for the 802.11b
+ * rates the high bit is set. We add this TLV only because
+ * there's a firmware which otherwise doesn't report all
+ * APs in range.
+ */
+#define LBS_MAX_RATES_TLV_SIZE			\
+	(sizeof(struct mrvl_ie_header)		\
+	 + (ARRAY_SIZE(lbs_rates)))
+
+/* Adds a TLV with all rates the hardware supports */
+static int lbs_add_supported_rates_tlv(u8 *tlv)
+{
+	size_t i;
+	struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
+
+	/*
+	 * TLV-ID RATES  01 00
+	 * length        0e 00
+	 * rates         82 84 8b 96 0c 12 18 24 30 48 60 6c
+	 */
+	rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
+	tlv += sizeof(rate_tlv->header);
+	i = lbs_add_rates(tlv);
+	tlv += i;
+	rate_tlv->header.len = cpu_to_le16(i);
+	return sizeof(rate_tlv->header) + i;
+}
+
+/* Add common rates from a TLV and return the new end of the TLV */
+static u8 *
+add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
+{
+	int hw, ap, ap_max = ie[1];
+	u8 hw_rate;
+
+	if (ap_max > MAX_RATES) {
+		lbs_deb_assoc("invalid rates\n");
+		return tlv;
+	}
+	/* Advance past IE header */
+	ie += 2;
+
+	lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
+
+	for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
+		hw_rate = lbs_rates[hw].bitrate / 5;
+		for (ap = 0; ap < ap_max; ap++) {
+			if (hw_rate == (ie[ap] & 0x7f)) {
+				*tlv++ = ie[ap];
+				*nrates = *nrates + 1;
+			}
+		}
+	}
+	return tlv;
+}
+
+/*
+ * Adds a TLV with all rates the hardware *and* BSS supports.
+ */
+static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
+{
+	struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
+	const u8 *rates_eid, *ext_rates_eid;
+	int n = 0;
+
+	rcu_read_lock();
+	rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
+	ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
+
+	/*
+	 * 01 00                   TLV_TYPE_RATES
+	 * 04 00                   len
+	 * 82 84 8b 96             rates
+	 */
+	rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
+	tlv += sizeof(rate_tlv->header);
+
+	/* Add basic rates */
+	if (rates_eid) {
+		tlv = add_ie_rates(tlv, rates_eid, &n);
+
+		/* Add extended rates, if any */
+		if (ext_rates_eid)
+			tlv = add_ie_rates(tlv, ext_rates_eid, &n);
+	} else {
+		lbs_deb_assoc("assoc: bss had no basic rate IE\n");
+		/* Fallback: add basic 802.11b rates */
+		*tlv++ = 0x82;
+		*tlv++ = 0x84;
+		*tlv++ = 0x8b;
+		*tlv++ = 0x96;
+		n = 4;
+	}
+	rcu_read_unlock();
+
+	rate_tlv->header.len = cpu_to_le16(n);
+	return sizeof(rate_tlv->header) + n;
+}
+
+
+/*
+ * Add auth type TLV.
+ *
+ * This is only needed for newer firmware (V9 and up).
+ */
+#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
+	sizeof(struct mrvl_ie_auth_type)
+
+static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
+{
+	struct mrvl_ie_auth_type *auth = (void *) tlv;
+
+	/*
+	 * 1f 01  TLV_TYPE_AUTH_TYPE
+	 * 01 00  len
+	 * 01     auth type
+	 */
+	auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
+	auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
+	auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
+	return sizeof(*auth);
+}
+
+
+/*
+ * Add channel (phy ds) TLV
+ */
+#define LBS_MAX_CHANNEL_TLV_SIZE \
+	sizeof(struct mrvl_ie_header)
+
+static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
+{
+	struct mrvl_ie_ds_param_set *ds = (void *) tlv;
+
+	/*
+	 * 03 00  TLV_TYPE_PHY_DS
+	 * 01 00  len
+	 * 06     channel
+	 */
+	ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
+	ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
+	ds->channel = channel;
+	return sizeof(*ds);
+}
+
+
+/*
+ * Add (empty) CF param TLV of the form:
+ */
+#define LBS_MAX_CF_PARAM_TLV_SIZE		\
+	sizeof(struct mrvl_ie_header)
+
+static int lbs_add_cf_param_tlv(u8 *tlv)
+{
+	struct mrvl_ie_cf_param_set *cf = (void *)tlv;
+
+	/*
+	 * 04 00  TLV_TYPE_CF
+	 * 06 00  len
+	 * 00     cfpcnt
+	 * 00     cfpperiod
+	 * 00 00  cfpmaxduration
+	 * 00 00  cfpdurationremaining
+	 */
+	cf->header.type = cpu_to_le16(TLV_TYPE_CF);
+	cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
+	return sizeof(*cf);
+}
+
+/*
+ * Add WPA TLV
+ */
+#define LBS_MAX_WPA_TLV_SIZE			\
+	(sizeof(struct mrvl_ie_header)		\
+	 + 128 /* TODO: I guessed the size */)
+
+static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
+{
+	struct mrvl_ie_data *wpatlv = (struct mrvl_ie_data *)tlv;
+	const struct element *wpaie;
+
+	/* Find the first RSN or WPA IE to use */
+	wpaie = cfg80211_find_elem(WLAN_EID_RSN, ie, ie_len);
+	if (!wpaie)
+		wpaie = cfg80211_find_vendor_elem(WLAN_OUI_MICROSOFT,
+						  WLAN_OUI_TYPE_MICROSOFT_WPA,
+						  ie, ie_len);
+	if (!wpaie || wpaie->datalen > 128)
+		return 0;
+
+	/*
+	 * Convert the found IE to a TLV. IEs use u8 for the header,
+	 *   u8      type
+	 *   u8      len
+	 *   u8[]    data
+	 * but TLVs use __le16 instead:
+	 *   __le16  type
+	 *   __le16  len
+	 *   u8[]    data
+	 */
+	wpatlv->header.type = cpu_to_le16(wpaie->id);
+	wpatlv->header.len = cpu_to_le16(wpaie->datalen);
+	memcpy(wpatlv->data, wpaie->data, wpaie->datalen);
+
+	/* Return the total number of bytes added to the TLV buffer */
+	return sizeof(struct mrvl_ie_header) + wpaie->datalen;
+}
+
+/* Add WPS enrollee TLV
+ */
+#define LBS_MAX_WPS_ENROLLEE_TLV_SIZE		\
+	(sizeof(struct mrvl_ie_header)		\
+	 + 256)
+
+static int lbs_add_wps_enrollee_tlv(u8 *tlv, const u8 *ie, size_t ie_len)
+{
+	struct mrvl_ie_data *wpstlv = (struct mrvl_ie_data *)tlv;
+	const struct element *wpsie;
+
+	/* Look for a WPS IE and add it to the probe request */
+	wpsie = cfg80211_find_vendor_elem(WLAN_OUI_MICROSOFT,
+					  WLAN_OUI_TYPE_MICROSOFT_WPS,
+					  ie, ie_len);
+	if (!wpsie)
+		return 0;
+
+	/* Convert the WPS IE to a TLV. The IE looks like this:
+	 *   u8      type (WLAN_EID_VENDOR_SPECIFIC)
+	 *   u8      len
+	 *   u8[]    data
+	 * but the TLV will look like this instead:
+	 *   __le16  type (TLV_TYPE_WPS_ENROLLEE)
+	 *   __le16  len
+	 *   u8[]    data
+	 */
+	wpstlv->header.type = cpu_to_le16(TLV_TYPE_WPS_ENROLLEE);
+	wpstlv->header.len = cpu_to_le16(wpsie->datalen);
+	memcpy(wpstlv->data, wpsie->data, wpsie->datalen);
+
+	/* Return the total number of bytes added to the TLV buffer */
+	return sizeof(struct mrvl_ie_header) + wpsie->datalen;
+}
+
+/*
+ * Set Channel
+ */
+
+static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
+				       struct cfg80211_chan_def *chandef)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	int ret = -ENOTSUPP;
+
+	if (cfg80211_get_chandef_type(chandef) != NL80211_CHAN_NO_HT)
+		goto out;
+
+	ret = lbs_set_channel(priv, chandef->chan->hw_value);
+
+ out:
+	return ret;
+}
+
+static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,
+				    struct net_device *netdev,
+				    struct ieee80211_channel *channel)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	int ret = -ENOTSUPP;
+
+	if (netdev != priv->mesh_dev)
+		goto out;
+
+	ret = lbs_mesh_set_channel(priv, channel->hw_value);
+
+ out:
+	return ret;
+}
+
+
+
+/*
+ * Scanning
+ */
+
+/*
+ * When scanning, the firmware doesn't send a nul packet with the power-safe
+ * bit to the AP. So we cannot stay away from our current channel too long,
+ * otherwise we loose data. So take a "nap" while scanning every other
+ * while.
+ */
+#define LBS_SCAN_BEFORE_NAP 4
+
+
+/*
+ * When the firmware reports back a scan-result, it gives us an "u8 rssi",
+ * which isn't really an RSSI, as it becomes larger when moving away from
+ * the AP. Anyway, we need to convert that into mBm.
+ */
+#define LBS_SCAN_RSSI_TO_MBM(rssi) \
+	((-(int)rssi + 3)*100)
+
+static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
+	struct cmd_header *resp)
+{
+	struct cfg80211_bss *bss;
+	struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
+	int bsssize;
+	const u8 *pos;
+	const u8 *tsfdesc;
+	int tsfsize;
+	int i;
+	int ret = -EILSEQ;
+
+	bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
+
+	lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
+			scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
+
+	if (scanresp->nr_sets == 0) {
+		ret = 0;
+		goto done;
+	}
+
+	/*
+	 * The general layout of the scan response is described in chapter
+	 * 5.7.1. Basically we have a common part, then any number of BSS
+	 * descriptor sections. Finally we have section with the same number
+	 * of TSFs.
+	 *
+	 * cmd_ds_802_11_scan_rsp
+	 *   cmd_header
+	 *   pos_size
+	 *   nr_sets
+	 *   bssdesc 1
+	 *     bssid
+	 *     rssi
+	 *     timestamp
+	 *     intvl
+	 *     capa
+	 *     IEs
+	 *   bssdesc 2
+	 *   bssdesc n
+	 *   MrvlIEtypes_TsfFimestamp_t
+	 *     TSF for BSS 1
+	 *     TSF for BSS 2
+	 *     TSF for BSS n
+	 */
+
+	pos = scanresp->bssdesc_and_tlvbuffer;
+
+	lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
+		    bsssize);
+
+	tsfdesc = pos + bsssize;
+	tsfsize = 4 + 8 * scanresp->nr_sets;
+	lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
+
+	/* Validity check: we expect a Marvell-Local TLV */
+	i = get_unaligned_le16(tsfdesc);
+	tsfdesc += 2;
+	if (i != TLV_TYPE_TSFTIMESTAMP) {
+		lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
+		goto done;
+	}
+
+	/*
+	 * Validity check: the TLV holds TSF values with 8 bytes each, so
+	 * the size in the TLV must match the nr_sets value
+	 */
+	i = get_unaligned_le16(tsfdesc);
+	tsfdesc += 2;
+	if (i / 8 != scanresp->nr_sets) {
+		lbs_deb_scan("scan response: invalid number of TSF timestamp "
+			     "sets (expected %d got %d)\n", scanresp->nr_sets,
+			     i / 8);
+		goto done;
+	}
+
+	for (i = 0; i < scanresp->nr_sets; i++) {
+		const u8 *bssid;
+		const u8 *ie;
+		int left;
+		int ielen;
+		int rssi;
+		u16 intvl;
+		u16 capa;
+		int chan_no = -1;
+		const u8 *ssid = NULL;
+		u8 ssid_len = 0;
+
+		int len = get_unaligned_le16(pos);
+		pos += 2;
+
+		/* BSSID */
+		bssid = pos;
+		pos += ETH_ALEN;
+		/* RSSI */
+		rssi = *pos++;
+		/* Packet time stamp */
+		pos += 8;
+		/* Beacon interval */
+		intvl = get_unaligned_le16(pos);
+		pos += 2;
+		/* Capabilities */
+		capa = get_unaligned_le16(pos);
+		pos += 2;
+
+		/* To find out the channel, we must parse the IEs */
+		ie = pos;
+		/*
+		 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
+		 * interval, capabilities
+		 */
+		ielen = left = len - (6 + 1 + 8 + 2 + 2);
+		while (left >= 2) {
+			u8 id, elen;
+			id = *pos++;
+			elen = *pos++;
+			left -= 2;
+			if (elen > left) {
+				lbs_deb_scan("scan response: invalid IE fmt\n");
+				goto done;
+			}
+
+			if (id == WLAN_EID_DS_PARAMS)
+				chan_no = *pos;
+			if (id == WLAN_EID_SSID) {
+				ssid = pos;
+				ssid_len = elen;
+			}
+			left -= elen;
+			pos += elen;
+		}
+
+		/* No channel, no luck */
+		if (chan_no != -1) {
+			struct wiphy *wiphy = priv->wdev->wiphy;
+			int freq = ieee80211_channel_to_frequency(chan_no,
+							NL80211_BAND_2GHZ);
+			struct ieee80211_channel *channel =
+				ieee80211_get_channel(wiphy, freq);
+
+			lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",
+				     bssid, capa, chan_no, ssid_len, ssid,
+				     LBS_SCAN_RSSI_TO_MBM(rssi)/100);
+
+			if (channel &&
+			    !(channel->flags & IEEE80211_CHAN_DISABLED)) {
+				bss = cfg80211_inform_bss(wiphy, channel,
+					CFG80211_BSS_FTYPE_UNKNOWN,
+					bssid, get_unaligned_le64(tsfdesc),
+					capa, intvl, ie, ielen,
+					LBS_SCAN_RSSI_TO_MBM(rssi),
+					GFP_KERNEL);
+				cfg80211_put_bss(wiphy, bss);
+			}
+		} else
+			lbs_deb_scan("scan response: missing BSS channel IE\n");
+
+		tsfdesc += 8;
+	}
+	ret = 0;
+
+ done:
+	return ret;
+}
+
+
+/*
+ * Our scan command contains a TLV, consisting of a SSID TLV, a channel list
+ * TLV, a rates TLV, and an optional WPS IE. Determine the maximum size of them:
+ */
+#define LBS_SCAN_MAX_CMD_SIZE			\
+	(sizeof(struct cmd_ds_802_11_scan)	\
+	 + LBS_MAX_SSID_TLV_SIZE		\
+	 + LBS_MAX_CHANNEL_LIST_TLV_SIZE	\
+	 + LBS_MAX_RATES_TLV_SIZE		\
+	 + LBS_MAX_WPS_ENROLLEE_TLV_SIZE)
+
+/*
+ * Assumes priv->scan_req is initialized and valid
+ * Assumes priv->scan_channel is initialized
+ */
+static void lbs_scan_worker(struct work_struct *work)
+{
+	struct lbs_private *priv =
+		container_of(work, struct lbs_private, scan_work.work);
+	struct cmd_ds_802_11_scan *scan_cmd;
+	u8 *tlv; /* pointer into our current, growing TLV storage area */
+	int last_channel;
+	int running, carrier;
+
+	scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
+	if (scan_cmd == NULL)
+		return;
+
+	/* prepare fixed part of scan command */
+	scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
+
+	/* stop network while we're away from our main channel */
+	running = !netif_queue_stopped(priv->dev);
+	carrier = netif_carrier_ok(priv->dev);
+	if (running)
+		netif_stop_queue(priv->dev);
+	if (carrier)
+		netif_carrier_off(priv->dev);
+
+	/* prepare fixed part of scan command */
+	tlv = scan_cmd->tlvbuffer;
+
+	/* add SSID TLV */
+	if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
+		tlv += lbs_add_ssid_tlv(tlv,
+					priv->scan_req->ssids[0].ssid,
+					priv->scan_req->ssids[0].ssid_len);
+
+	/* add channel TLVs */
+	last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
+	if (last_channel > priv->scan_req->n_channels)
+		last_channel = priv->scan_req->n_channels;
+	tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
+		priv->scan_req->n_ssids);
+
+	/* add rates TLV */
+	tlv += lbs_add_supported_rates_tlv(tlv);
+
+	/* add optional WPS enrollee TLV */
+	if (priv->scan_req->ie && priv->scan_req->ie_len)
+		tlv += lbs_add_wps_enrollee_tlv(tlv, priv->scan_req->ie,
+						priv->scan_req->ie_len);
+
+	if (priv->scan_channel < priv->scan_req->n_channels) {
+		cancel_delayed_work(&priv->scan_work);
+		if (netif_running(priv->dev))
+			queue_delayed_work(priv->work_thread, &priv->scan_work,
+				msecs_to_jiffies(300));
+	}
+
+	/* This is the final data we are about to send */
+	scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
+	lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
+		    sizeof(*scan_cmd));
+	lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
+		    tlv - scan_cmd->tlvbuffer);
+
+	__lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
+		le16_to_cpu(scan_cmd->hdr.size),
+		lbs_ret_scan, 0);
+
+	if (priv->scan_channel >= priv->scan_req->n_channels) {
+		/* Mark scan done */
+		cancel_delayed_work(&priv->scan_work);
+		lbs_scan_done(priv);
+	}
+
+	/* Restart network */
+	if (carrier)
+		netif_carrier_on(priv->dev);
+	if (running && !priv->tx_pending_len)
+		netif_wake_queue(priv->dev);
+
+	kfree(scan_cmd);
+
+	/* Wake up anything waiting on scan completion */
+	if (priv->scan_req == NULL) {
+		lbs_deb_scan("scan: waking up waiters\n");
+		wake_up_all(&priv->scan_q);
+	}
+}
+
+static void _internal_start_scan(struct lbs_private *priv, bool internal,
+	struct cfg80211_scan_request *request)
+{
+	lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
+		request->n_ssids, request->n_channels, request->ie_len);
+
+	priv->scan_channel = 0;
+	priv->scan_req = request;
+	priv->internal_scan = internal;
+
+	queue_delayed_work(priv->work_thread, &priv->scan_work,
+		msecs_to_jiffies(50));
+}
+
+/*
+ * Clean up priv->scan_req.  Should be used to handle the allocation details.
+ */
+void lbs_scan_done(struct lbs_private *priv)
+{
+	WARN_ON(!priv->scan_req);
+
+	if (priv->internal_scan) {
+		kfree(priv->scan_req);
+	} else {
+		struct cfg80211_scan_info info = {
+			.aborted = false,
+		};
+
+		cfg80211_scan_done(priv->scan_req, &info);
+	}
+
+	priv->scan_req = NULL;
+}
+
+static int lbs_cfg_scan(struct wiphy *wiphy,
+	struct cfg80211_scan_request *request)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	int ret = 0;
+
+	if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
+		/* old scan request not yet processed */
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	_internal_start_scan(priv, false, request);
+
+	if (priv->surpriseremoved)
+		ret = -EIO;
+
+ out:
+	return ret;
+}
+
+
+
+
+/*
+ * Events
+ */
+
+void lbs_send_disconnect_notification(struct lbs_private *priv,
+				      bool locally_generated)
+{
+	cfg80211_disconnected(priv->dev, 0, NULL, 0, locally_generated,
+			      GFP_KERNEL);
+}
+
+void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
+{
+	cfg80211_michael_mic_failure(priv->dev,
+		priv->assoc_bss,
+		event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
+			NL80211_KEYTYPE_GROUP :
+			NL80211_KEYTYPE_PAIRWISE,
+		-1,
+		NULL,
+		GFP_KERNEL);
+}
+
+
+
+
+/*
+ * Connect/disconnect
+ */
+
+
+/*
+ * This removes all WEP keys
+ */
+static int lbs_remove_wep_keys(struct lbs_private *priv)
+{
+	struct cmd_ds_802_11_set_wep cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
+	cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
+
+	return ret;
+}
+
+/*
+ * Set WEP keys
+ */
+static int lbs_set_wep_keys(struct lbs_private *priv)
+{
+	struct cmd_ds_802_11_set_wep cmd;
+	int i;
+	int ret;
+
+	/*
+	 * command         13 00
+	 * size            50 00
+	 * sequence        xx xx
+	 * result          00 00
+	 * action          02 00     ACT_ADD
+	 * transmit key    00 00
+	 * type for key 1  01        WEP40
+	 * type for key 2  00
+	 * type for key 3  00
+	 * type for key 4  00
+	 * key 1           39 39 39 39 39 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 * key 2           00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 * key 3           00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 * key 4           00 00 00 00 00 00 00 00
+	 */
+	if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
+	    priv->wep_key_len[2] || priv->wep_key_len[3]) {
+		/* Only set wep keys if we have at least one of them */
+		memset(&cmd, 0, sizeof(cmd));
+		cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+		cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
+		cmd.action = cpu_to_le16(CMD_ACT_ADD);
+
+		for (i = 0; i < 4; i++) {
+			switch (priv->wep_key_len[i]) {
+			case WLAN_KEY_LEN_WEP40:
+				cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
+				break;
+			case WLAN_KEY_LEN_WEP104:
+				cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
+				break;
+			default:
+				cmd.keytype[i] = 0;
+				break;
+			}
+			memcpy(cmd.keymaterial[i], priv->wep_key[i],
+			       priv->wep_key_len[i]);
+		}
+
+		ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
+	} else {
+		/* Otherwise remove all wep keys */
+		ret = lbs_remove_wep_keys(priv);
+	}
+
+	return ret;
+}
+
+
+/*
+ * Enable/Disable RSN status
+ */
+static int lbs_enable_rsn(struct lbs_private *priv, int enable)
+{
+	struct cmd_ds_802_11_enable_rsn cmd;
+	int ret;
+
+	/*
+	 * cmd       2f 00
+	 * size      0c 00
+	 * sequence  xx xx
+	 * result    00 00
+	 * action    01 00    ACT_SET
+	 * enable    01 00
+	 */
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.enable = cpu_to_le16(enable);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
+
+	return ret;
+}
+
+
+/*
+ * Set WPA/WPA key material
+ */
+
+/*
+ * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
+ * get rid of WEXT, this should go into host.h
+ */
+
+struct cmd_key_material {
+	struct cmd_header hdr;
+
+	__le16 action;
+	struct MrvlIEtype_keyParamSet param;
+} __packed;
+
+static int lbs_set_key_material(struct lbs_private *priv,
+				int key_type, int key_info,
+				const u8 *key, u16 key_len)
+{
+	struct cmd_key_material cmd;
+	int ret;
+
+	/*
+	 * Example for WPA (TKIP):
+	 *
+	 * cmd       5e 00
+	 * size      34 00
+	 * sequence  xx xx
+	 * result    00 00
+	 * action    01 00
+	 * TLV type  00 01    key param
+	 * length    00 26
+	 * key type  01 00    TKIP
+	 * key info  06 00    UNICAST | ENABLED
+	 * key len   20 00
+	 * key       32 bytes
+	 */
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
+	cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
+	cmd.param.keytypeid = cpu_to_le16(key_type);
+	cmd.param.keyinfo = cpu_to_le16(key_info);
+	cmd.param.keylen = cpu_to_le16(key_len);
+	if (key && key_len)
+		memcpy(cmd.param.key, key, key_len);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
+
+	return ret;
+}
+
+
+/*
+ * Sets the auth type (open, shared, etc) in the firmware. That
+ * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
+ * command doesn't send an authentication frame at all, it just
+ * stores the auth_type.
+ */
+static int lbs_set_authtype(struct lbs_private *priv,
+			    struct cfg80211_connect_params *sme)
+{
+	struct cmd_ds_802_11_authenticate cmd;
+	int ret;
+
+	/*
+	 * cmd        11 00
+	 * size       19 00
+	 * sequence   xx xx
+	 * result     00 00
+	 * BSS id     00 13 19 80 da 30
+	 * auth type  00
+	 * reserved   00 00 00 00 00 00 00 00 00 00
+	 */
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	if (sme->bssid)
+		memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
+	/* convert auth_type */
+	ret = lbs_auth_to_authtype(sme->auth_type);
+	if (ret < 0)
+		goto done;
+
+	cmd.authtype = ret;
+	ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
+
+ done:
+	return ret;
+}
+
+
+/*
+ * Create association request
+ */
+#define LBS_ASSOC_MAX_CMD_SIZE                     \
+	(sizeof(struct cmd_ds_802_11_associate)    \
+	 + LBS_MAX_SSID_TLV_SIZE                   \
+	 + LBS_MAX_CHANNEL_TLV_SIZE                \
+	 + LBS_MAX_CF_PARAM_TLV_SIZE               \
+	 + LBS_MAX_AUTH_TYPE_TLV_SIZE              \
+	 + LBS_MAX_WPA_TLV_SIZE)
+
+static int lbs_associate(struct lbs_private *priv,
+		struct cfg80211_bss *bss,
+		struct cfg80211_connect_params *sme)
+{
+	struct cmd_ds_802_11_associate_response *resp;
+	struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
+						      GFP_KERNEL);
+	const u8 *ssid_eid;
+	size_t len, resp_ie_len;
+	int status;
+	int ret;
+	u8 *pos;
+	u8 *tmp;
+
+	if (!cmd) {
+		ret = -ENOMEM;
+		goto done;
+	}
+	pos = &cmd->iebuf[0];
+
+	/*
+	 * cmd              50 00
+	 * length           34 00
+	 * sequence         xx xx
+	 * result           00 00
+	 * BSS id           00 13 19 80 da 30
+	 * capabilities     11 00
+	 * listen interval  0a 00
+	 * beacon interval  00 00
+	 * DTIM period      00
+	 * TLVs             xx   (up to 512 bytes)
+	 */
+	cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
+
+	/* Fill in static fields */
+	memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
+	cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
+	cmd->capability = cpu_to_le16(bss->capability);
+
+	/* add SSID TLV */
+	rcu_read_lock();
+	ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
+	if (ssid_eid)
+		pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
+	else
+		lbs_deb_assoc("no SSID\n");
+	rcu_read_unlock();
+
+	/* add DS param TLV */
+	if (bss->channel)
+		pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
+	else
+		lbs_deb_assoc("no channel\n");
+
+	/* add (empty) CF param TLV */
+	pos += lbs_add_cf_param_tlv(pos);
+
+	/* add rates TLV */
+	tmp = pos + 4; /* skip Marvell IE header */
+	pos += lbs_add_common_rates_tlv(pos, bss);
+	lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
+
+	/* add auth type TLV */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
+		pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
+
+	/* add WPA/WPA2 TLV */
+	if (sme->ie && sme->ie_len)
+		pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
+
+	len = sizeof(*cmd) + (u16)(pos - (u8 *) &cmd->iebuf);
+	cmd->hdr.size = cpu_to_le16(len);
+
+	lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
+			le16_to_cpu(cmd->hdr.size));
+
+	/* store for later use */
+	memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
+	if (ret)
+		goto done;
+
+	/* generate connect message to cfg80211 */
+
+	resp = (void *) cmd; /* recast for easier field access */
+	status = le16_to_cpu(resp->statuscode);
+
+	/* Older FW versions map the IEEE 802.11 Status Code in the association
+	 * response to the following values returned in resp->statuscode:
+	 *
+	 *    IEEE Status Code                Marvell Status Code
+	 *    0                       ->      0x0000 ASSOC_RESULT_SUCCESS
+	 *    13                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
+	 *    14                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
+	 *    15                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
+	 *    16                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
+	 *    others                  ->      0x0003 ASSOC_RESULT_REFUSED
+	 *
+	 * Other response codes:
+	 *    0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
+	 *    0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
+	 *                                    association response from the AP)
+	 */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
+		switch (status) {
+		case 0:
+			break;
+		case 1:
+			lbs_deb_assoc("invalid association parameters\n");
+			status = WLAN_STATUS_CAPS_UNSUPPORTED;
+			break;
+		case 2:
+			lbs_deb_assoc("timer expired while waiting for AP\n");
+			status = WLAN_STATUS_AUTH_TIMEOUT;
+			break;
+		case 3:
+			lbs_deb_assoc("association refused by AP\n");
+			status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
+			break;
+		case 4:
+			lbs_deb_assoc("authentication refused by AP\n");
+			status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
+			break;
+		default:
+			lbs_deb_assoc("association failure %d\n", status);
+			/* v5 OLPC firmware does return the AP status code if
+			 * it's not one of the values above.  Let that through.
+			 */
+			break;
+		}
+	}
+
+	lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
+		      "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
+		      le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
+
+	resp_ie_len = le16_to_cpu(resp->hdr.size)
+		- sizeof(resp->hdr)
+		- 6;
+	cfg80211_connect_result(priv->dev,
+				priv->assoc_bss,
+				sme->ie, sme->ie_len,
+				resp->iebuf, resp_ie_len,
+				status,
+				GFP_KERNEL);
+
+	if (status == 0) {
+		/* TODO: get rid of priv->connect_status */
+		priv->connect_status = LBS_CONNECTED;
+		netif_carrier_on(priv->dev);
+		if (!priv->tx_pending_len)
+			netif_tx_wake_all_queues(priv->dev);
+	}
+
+	kfree(cmd);
+done:
+	return ret;
+}
+
+static struct cfg80211_scan_request *
+_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
+{
+	struct cfg80211_scan_request *creq = NULL;
+	int i, n_channels = ieee80211_get_num_supported_channels(wiphy);
+	enum nl80211_band band;
+
+	creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
+		       n_channels * sizeof(void *),
+		       GFP_ATOMIC);
+	if (!creq)
+		return NULL;
+
+	/* SSIDs come after channels */
+	creq->ssids = (void *)&creq->channels[n_channels];
+	creq->n_channels = n_channels;
+	creq->n_ssids = 1;
+
+	/* Scan all available channels */
+	i = 0;
+	for (band = 0; band < NUM_NL80211_BANDS; band++) {
+		int j;
+
+		if (!wiphy->bands[band])
+			continue;
+
+		for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+			/* ignore disabled channels */
+			if (wiphy->bands[band]->channels[j].flags &
+						IEEE80211_CHAN_DISABLED)
+				continue;
+
+			creq->channels[i] = &wiphy->bands[band]->channels[j];
+			i++;
+		}
+	}
+	if (i) {
+		/* Set real number of channels specified in creq->channels[] */
+		creq->n_channels = i;
+
+		/* Scan for the SSID we're going to connect to */
+		memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
+		creq->ssids[0].ssid_len = sme->ssid_len;
+	} else {
+		/* No channels found... */
+		kfree(creq);
+		creq = NULL;
+	}
+
+	return creq;
+}
+
+static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
+			   struct cfg80211_connect_params *sme)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	struct cfg80211_bss *bss = NULL;
+	int ret = 0;
+	u8 preamble = RADIO_PREAMBLE_SHORT;
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	if (!sme->bssid) {
+		struct cfg80211_scan_request *creq;
+
+		/*
+		 * Scan for the requested network after waiting for existing
+		 * scans to finish.
+		 */
+		lbs_deb_assoc("assoc: waiting for existing scans\n");
+		wait_event_interruptible_timeout(priv->scan_q,
+						 (priv->scan_req == NULL),
+						 (15 * HZ));
+
+		creq = _new_connect_scan_req(wiphy, sme);
+		if (!creq) {
+			ret = -EINVAL;
+			goto done;
+		}
+
+		lbs_deb_assoc("assoc: scanning for compatible AP\n");
+		_internal_start_scan(priv, true, creq);
+
+		lbs_deb_assoc("assoc: waiting for scan to complete\n");
+		wait_event_interruptible_timeout(priv->scan_q,
+						 (priv->scan_req == NULL),
+						 (15 * HZ));
+		lbs_deb_assoc("assoc: scanning completed\n");
+	}
+
+	/* Find the BSS we want using available scan results */
+	bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
+		sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,
+		IEEE80211_PRIVACY_ANY);
+	if (!bss) {
+		wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
+			  sme->bssid);
+		ret = -ENOENT;
+		goto done;
+	}
+	lbs_deb_assoc("trying %pM\n", bss->bssid);
+	lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
+		      sme->crypto.cipher_group,
+		      sme->key_idx, sme->key_len);
+
+	/* As this is a new connection, clear locally stored WEP keys */
+	priv->wep_tx_key = 0;
+	memset(priv->wep_key, 0, sizeof(priv->wep_key));
+	memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
+
+	/* set/remove WEP keys */
+	switch (sme->crypto.cipher_group) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		/* Store provided WEP keys in priv-> */
+		priv->wep_tx_key = sme->key_idx;
+		priv->wep_key_len[sme->key_idx] = sme->key_len;
+		memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
+		/* Set WEP keys and WEP mode */
+		lbs_set_wep_keys(priv);
+		priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
+		lbs_set_mac_control(priv);
+		/* No RSN mode for WEP */
+		lbs_enable_rsn(priv, 0);
+		break;
+	case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
+		/*
+		 * If we don't have no WEP, no WPA and no WPA2,
+		 * we remove all keys like in the WPA/WPA2 setup,
+		 * we just don't set RSN.
+		 *
+		 * Therefore: fall-through
+		 */
+	case WLAN_CIPHER_SUITE_TKIP:
+	case WLAN_CIPHER_SUITE_CCMP:
+		/* Remove WEP keys and WEP mode */
+		lbs_remove_wep_keys(priv);
+		priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
+		lbs_set_mac_control(priv);
+
+		/* clear the WPA/WPA2 keys */
+		lbs_set_key_material(priv,
+			KEY_TYPE_ID_WEP, /* doesn't matter */
+			KEY_INFO_WPA_UNICAST,
+			NULL, 0);
+		lbs_set_key_material(priv,
+			KEY_TYPE_ID_WEP, /* doesn't matter */
+			KEY_INFO_WPA_MCAST,
+			NULL, 0);
+		/* RSN mode for WPA/WPA2 */
+		lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
+		break;
+	default:
+		wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
+			  sme->crypto.cipher_group);
+		ret = -ENOTSUPP;
+		goto done;
+	}
+
+	ret = lbs_set_authtype(priv, sme);
+	if (ret == -ENOTSUPP) {
+		wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);
+		goto done;
+	}
+
+	lbs_set_radio(priv, preamble, 1);
+
+	/* Do the actual association */
+	ret = lbs_associate(priv, bss, sme);
+
+ done:
+	if (bss)
+		cfg80211_put_bss(wiphy, bss);
+	return ret;
+}
+
+int lbs_disconnect(struct lbs_private *priv, u16 reason)
+{
+	struct cmd_ds_802_11_deauthenticate cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	/* Mildly ugly to use a locally store my own BSSID ... */
+	memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
+	cmd.reasoncode = cpu_to_le16(reason);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
+	if (ret)
+		return ret;
+
+	cfg80211_disconnected(priv->dev,
+			reason,
+			NULL, 0, true,
+			GFP_KERNEL);
+	priv->connect_status = LBS_DISCONNECTED;
+
+	return 0;
+}
+
+static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
+	u16 reason_code)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	/* store for lbs_cfg_ret_disconnect() */
+	priv->disassoc_reason = reason_code;
+
+	return lbs_disconnect(priv, reason_code);
+}
+
+static int lbs_cfg_set_default_key(struct wiphy *wiphy,
+				   struct net_device *netdev, int link_id,
+				   u8 key_index, bool unicast,
+				   bool multicast)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+
+	if (netdev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	if (key_index != priv->wep_tx_key) {
+		lbs_deb_assoc("set_default_key: to %d\n", key_index);
+		priv->wep_tx_key = key_index;
+		lbs_set_wep_keys(priv);
+	}
+
+	return 0;
+}
+
+
+static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
+			   int link_id, u8 idx, bool pairwise,
+			   const u8 *mac_addr, struct key_params *params)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	u16 key_info;
+	u16 key_type;
+	int ret = 0;
+
+	if (netdev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
+		      params->cipher, mac_addr);
+	lbs_deb_assoc("add_key: key index %d, key len %d\n",
+		      idx, params->key_len);
+	if (params->key_len)
+		lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
+			    params->key, params->key_len);
+
+	lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
+	if (params->seq_len)
+		lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
+			    params->seq, params->seq_len);
+
+	switch (params->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		/* actually compare if something has changed ... */
+		if ((priv->wep_key_len[idx] != params->key_len) ||
+			memcmp(priv->wep_key[idx],
+			       params->key, params->key_len) != 0) {
+			priv->wep_key_len[idx] = params->key_len;
+			memcpy(priv->wep_key[idx],
+			       params->key, params->key_len);
+			lbs_set_wep_keys(priv);
+		}
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+	case WLAN_CIPHER_SUITE_CCMP:
+		key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
+						   ? KEY_INFO_WPA_UNICAST
+						   : KEY_INFO_WPA_MCAST);
+		key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
+			? KEY_TYPE_ID_TKIP
+			: KEY_TYPE_ID_AES;
+		lbs_set_key_material(priv,
+				     key_type,
+				     key_info,
+				     params->key, params->key_len);
+		break;
+	default:
+		wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
+		ret = -ENOTSUPP;
+		break;
+	}
+
+	return ret;
+}
+
+
+static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
+			   int link_id, u8 key_index, bool pairwise,
+			   const u8 *mac_addr)
+{
+
+	lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
+		      key_index, mac_addr);
+
+#ifdef TODO
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	/*
+	 * I think can keep this a NO-OP, because:
+
+	 * - we clear all keys whenever we do lbs_cfg_connect() anyway
+	 * - neither "iw" nor "wpa_supplicant" won't call this during
+	 *   an ongoing connection
+	 * - TODO: but I have to check if this is still true when
+	 *   I set the AP to periodic re-keying
+	 * - we've not kzallec() something when we've added a key at
+	 *   lbs_cfg_connect() or lbs_cfg_add_key().
+	 *
+	 * This causes lbs_cfg_del_key() only called at disconnect time,
+	 * where we'd just waste time deleting a key that is not going
+	 * to be used anyway.
+	 */
+	if (key_index < 3 && priv->wep_key_len[key_index]) {
+		priv->wep_key_len[key_index] = 0;
+		lbs_set_wep_keys(priv);
+	}
+#endif
+
+	return 0;
+}
+
+
+/*
+ * Get station
+ */
+
+static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
+			       const u8 *mac, struct station_info *sinfo)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	s8 signal, noise;
+	int ret;
+	size_t i;
+
+	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
+			 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
+			 BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
+			 BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
+	sinfo->tx_bytes = priv->dev->stats.tx_bytes;
+	sinfo->tx_packets = priv->dev->stats.tx_packets;
+	sinfo->rx_bytes = priv->dev->stats.rx_bytes;
+	sinfo->rx_packets = priv->dev->stats.rx_packets;
+
+	/* Get current RSSI */
+	ret = lbs_get_rssi(priv, &signal, &noise);
+	if (ret == 0) {
+		sinfo->signal = signal;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
+	}
+
+	/* Convert priv->cur_rate from hw_value to NL80211 value */
+	for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
+		if (priv->cur_rate == lbs_rates[i].hw_value) {
+			sinfo->txrate.legacy = lbs_rates[i].bitrate;
+			sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+			break;
+		}
+	}
+
+	return 0;
+}
+
+
+
+
+/*
+ * Change interface
+ */
+
+static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
+	enum nl80211_iftype type,
+	       struct vif_params *params)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	int ret = 0;
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	switch (type) {
+	case NL80211_IFTYPE_MONITOR:
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (priv->iface_running)
+		ret = lbs_set_iface_type(priv, type);
+
+	if (!ret)
+		priv->wdev->iftype = type;
+
+	return ret;
+}
+
+
+
+/*
+ * IBSS (Ad-Hoc)
+ */
+
+/*
+ * The firmware needs the following bits masked out of the beacon-derived
+ * capability field when associating/joining to a BSS:
+ *  9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
+ */
+#define CAPINFO_MASK (~(0xda00))
+
+
+static void lbs_join_post(struct lbs_private *priv,
+			  struct cfg80211_ibss_params *params,
+			  u8 *bssid, u16 capability)
+{
+	u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
+		   2 + 4 +                      /* basic rates */
+		   2 + 1 +                      /* DS parameter */
+		   2 + 2 +                      /* atim */
+		   2 + 8];                      /* extended rates */
+	u8 *fake = fake_ie;
+	struct cfg80211_bss *bss;
+
+	/*
+	 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
+	 * the real IE from the firmware. So we fabricate a fake IE based on
+	 * what the firmware actually sends (sniffed with wireshark).
+	 */
+	/* Fake SSID IE */
+	*fake++ = WLAN_EID_SSID;
+	*fake++ = params->ssid_len;
+	memcpy(fake, params->ssid, params->ssid_len);
+	fake += params->ssid_len;
+	/* Fake supported basic rates IE */
+	*fake++ = WLAN_EID_SUPP_RATES;
+	*fake++ = 4;
+	*fake++ = 0x82;
+	*fake++ = 0x84;
+	*fake++ = 0x8b;
+	*fake++ = 0x96;
+	/* Fake DS channel IE */
+	*fake++ = WLAN_EID_DS_PARAMS;
+	*fake++ = 1;
+	*fake++ = params->chandef.chan->hw_value;
+	/* Fake IBSS params IE */
+	*fake++ = WLAN_EID_IBSS_PARAMS;
+	*fake++ = 2;
+	*fake++ = 0; /* ATIM=0 */
+	*fake++ = 0;
+	/* Fake extended rates IE, TODO: don't add this for 802.11b only,
+	 * but I don't know how this could be checked */
+	*fake++ = WLAN_EID_EXT_SUPP_RATES;
+	*fake++ = 8;
+	*fake++ = 0x0c;
+	*fake++ = 0x12;
+	*fake++ = 0x18;
+	*fake++ = 0x24;
+	*fake++ = 0x30;
+	*fake++ = 0x48;
+	*fake++ = 0x60;
+	*fake++ = 0x6c;
+	lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
+
+	bss = cfg80211_inform_bss(priv->wdev->wiphy,
+				  params->chandef.chan,
+				  CFG80211_BSS_FTYPE_UNKNOWN,
+				  bssid,
+				  0,
+				  capability,
+				  params->beacon_interval,
+				  fake_ie, fake - fake_ie,
+				  0, GFP_KERNEL);
+	cfg80211_put_bss(priv->wdev->wiphy, bss);
+
+	cfg80211_ibss_joined(priv->dev, bssid, params->chandef.chan,
+			     GFP_KERNEL);
+
+	/* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
+	priv->connect_status = LBS_CONNECTED;
+	netif_carrier_on(priv->dev);
+	if (!priv->tx_pending_len)
+		netif_wake_queue(priv->dev);
+}
+
+static int lbs_ibss_join_existing(struct lbs_private *priv,
+	struct cfg80211_ibss_params *params,
+	struct cfg80211_bss *bss)
+{
+	const u8 *rates_eid;
+	struct cmd_ds_802_11_ad_hoc_join cmd;
+	u8 preamble = RADIO_PREAMBLE_SHORT;
+	int ret = 0;
+	int hw, i;
+	u8 rates_max;
+	u8 *rates;
+
+	/* TODO: set preamble based on scan result */
+	ret = lbs_set_radio(priv, preamble, 1);
+	if (ret)
+		goto out;
+
+	/*
+	 * Example CMD_802_11_AD_HOC_JOIN command:
+	 *
+	 * command         2c 00         CMD_802_11_AD_HOC_JOIN
+	 * size            65 00
+	 * sequence        xx xx
+	 * result          00 00
+	 * bssid           02 27 27 97 2f 96
+	 * ssid            49 42 53 53 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 * type            02            CMD_BSS_TYPE_IBSS
+	 * beacon period   64 00
+	 * dtim period     00
+	 * timestamp       00 00 00 00 00 00 00 00
+	 * localtime       00 00 00 00 00 00 00 00
+	 * IE DS           03
+	 * IE DS len       01
+	 * IE DS channel   01
+	 * reserveed       00 00 00 00
+	 * IE IBSS         06
+	 * IE IBSS len     02
+	 * IE IBSS atim    00 00
+	 * reserved        00 00 00 00
+	 * capability      02 00
+	 * rates           82 84 8b 96 0c 12 18 24 30 48 60 6c 00
+	 * fail timeout    ff 00
+	 * probe delay     00 00
+	 */
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+
+	memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
+	memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
+	cmd.bss.type = CMD_BSS_TYPE_IBSS;
+	cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
+	cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
+	cmd.bss.ds.header.len = 1;
+	cmd.bss.ds.channel = params->chandef.chan->hw_value;
+	cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
+	cmd.bss.ibss.header.len = 2;
+	cmd.bss.ibss.atimwindow = 0;
+	cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
+
+	/* set rates to the intersection of our rates and the rates in the
+	   bss */
+	rcu_read_lock();
+	rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
+	if (!rates_eid) {
+		lbs_add_rates(cmd.bss.rates);
+	} else {
+		rates_max = rates_eid[1];
+		if (rates_max > MAX_RATES) {
+			lbs_deb_join("invalid rates");
+			rcu_read_unlock();
+			ret = -EINVAL;
+			goto out;
+		}
+		rates = cmd.bss.rates;
+		for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
+			u8 hw_rate = lbs_rates[hw].bitrate / 5;
+			for (i = 0; i < rates_max; i++) {
+				if (hw_rate == (rates_eid[i+2] & 0x7f)) {
+					u8 rate = rates_eid[i+2];
+					if (rate == 0x02 || rate == 0x04 ||
+					    rate == 0x0b || rate == 0x16)
+						rate |= 0x80;
+					*rates++ = rate;
+				}
+			}
+		}
+	}
+	rcu_read_unlock();
+
+	/* Only v8 and below support setting this */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
+		cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
+		cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
+	}
+	ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
+	if (ret)
+		goto out;
+
+	/*
+	 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
+	 *
+	 * response        2c 80
+	 * size            09 00
+	 * sequence        xx xx
+	 * result          00 00
+	 * reserved        00
+	 */
+	lbs_join_post(priv, params, bss->bssid, bss->capability);
+
+ out:
+	return ret;
+}
+
+
+
+static int lbs_ibss_start_new(struct lbs_private *priv,
+	struct cfg80211_ibss_params *params)
+{
+	struct cmd_ds_802_11_ad_hoc_start cmd;
+	struct cmd_ds_802_11_ad_hoc_result *resp =
+		(struct cmd_ds_802_11_ad_hoc_result *) &cmd;
+	u8 preamble = RADIO_PREAMBLE_SHORT;
+	int ret = 0;
+	u16 capability;
+
+	ret = lbs_set_radio(priv, preamble, 1);
+	if (ret)
+		goto out;
+
+	/*
+	 * Example CMD_802_11_AD_HOC_START command:
+	 *
+	 * command         2b 00         CMD_802_11_AD_HOC_START
+	 * size            b1 00
+	 * sequence        xx xx
+	 * result          00 00
+	 * ssid            54 45 53 54 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 *                 00 00 00 00 00 00 00 00
+	 * bss type        02
+	 * beacon period   64 00
+	 * dtim period     00
+	 * IE IBSS         06
+	 * IE IBSS len     02
+	 * IE IBSS atim    00 00
+	 * reserved        00 00 00 00
+	 * IE DS           03
+	 * IE DS len       01
+	 * IE DS channel   01
+	 * reserved        00 00 00 00
+	 * probe delay     00 00
+	 * capability      02 00
+	 * rates           82 84 8b 96   (basic rates with have bit 7 set)
+	 *                 0c 12 18 24 30 48 60 6c
+	 * padding         100 bytes
+	 */
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	memcpy(cmd.ssid, params->ssid, params->ssid_len);
+	cmd.bsstype = CMD_BSS_TYPE_IBSS;
+	cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
+	cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
+	cmd.ibss.header.len = 2;
+	cmd.ibss.atimwindow = 0;
+	cmd.ds.header.id = WLAN_EID_DS_PARAMS;
+	cmd.ds.header.len = 1;
+	cmd.ds.channel = params->chandef.chan->hw_value;
+	/* Only v8 and below support setting probe delay */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
+		cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
+	/* TODO: mix in WLAN_CAPABILITY_PRIVACY */
+	capability = WLAN_CAPABILITY_IBSS;
+	cmd.capability = cpu_to_le16(capability);
+	lbs_add_rates(cmd.rates);
+
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
+	if (ret)
+		goto out;
+
+	/*
+	 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
+	 *
+	 * response        2b 80
+	 * size            14 00
+	 * sequence        xx xx
+	 * result          00 00
+	 * reserved        00
+	 * bssid           02 2b 7b 0f 86 0e
+	 */
+	lbs_join_post(priv, params, resp->bssid, capability);
+
+ out:
+	return ret;
+}
+
+
+static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+		struct cfg80211_ibss_params *params)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	int ret = 0;
+	struct cfg80211_bss *bss;
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	if (!params->chandef.chan) {
+		ret = -ENOTSUPP;
+		goto out;
+	}
+
+	ret = lbs_set_channel(priv, params->chandef.chan->hw_value);
+	if (ret)
+		goto out;
+
+	/* Search if someone is beaconing. This assumes that the
+	 * bss list is populated already */
+	bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,
+		params->ssid, params->ssid_len,
+		IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
+
+	if (bss) {
+		ret = lbs_ibss_join_existing(priv, params, bss);
+		cfg80211_put_bss(wiphy, bss);
+	} else
+		ret = lbs_ibss_start_new(priv, params);
+
+
+ out:
+	return ret;
+}
+
+
+static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+	struct cmd_ds_802_11_ad_hoc_stop cmd;
+	int ret = 0;
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
+
+	/* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
+	lbs_mac_event_disconnected(priv, true);
+
+	return ret;
+}
+
+
+
+static int lbs_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
+			      bool enabled, int timeout)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+
+	if  (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
+		if (!enabled)
+			return 0;
+		else
+			return -EINVAL;
+	}
+	/* firmware does not work well with too long latency with power saving
+	 * enabled, so do not enable it if there is only polling, no
+	 * interrupts (like in some sdio hosts which can only
+	 * poll for sdio irqs)
+	 */
+	if  (priv->is_polling) {
+		if (!enabled)
+			return 0;
+		else
+			return -EINVAL;
+	}
+	if (!enabled) {
+		priv->psmode = LBS802_11POWERMODECAM;
+		if (priv->psstate != PS_STATE_FULL_POWER)
+			lbs_set_ps_mode(priv,
+					PS_MODE_ACTION_EXIT_PS,
+					true);
+		return 0;
+	}
+	if (priv->psmode != LBS802_11POWERMODECAM)
+		return 0;
+	priv->psmode = LBS802_11POWERMODEMAX_PSP;
+	if (priv->connect_status == LBS_CONNECTED)
+		lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS, true);
+	return 0;
+}
+
+/*
+ * Initialization
+ */
+
+static const struct cfg80211_ops lbs_cfg80211_ops = {
+	.set_monitor_channel = lbs_cfg_set_monitor_channel,
+	.libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,
+	.scan = lbs_cfg_scan,
+	.connect = lbs_cfg_connect,
+	.disconnect = lbs_cfg_disconnect,
+	.add_key = lbs_cfg_add_key,
+	.del_key = lbs_cfg_del_key,
+	.set_default_key = lbs_cfg_set_default_key,
+	.get_station = lbs_cfg_get_station,
+	.change_virtual_intf = lbs_change_intf,
+	.join_ibss = lbs_join_ibss,
+	.leave_ibss = lbs_leave_ibss,
+	.set_power_mgmt = lbs_set_power_mgmt,
+};
+
+
+/*
+ * At this time lbs_private *priv doesn't even exist, so we just allocate
+ * memory and don't initialize the wiphy further. This is postponed until we
+ * can talk to the firmware and happens at registration time in
+ * lbs_cfg_wiphy_register().
+ */
+struct wireless_dev *lbs_cfg_alloc(struct device *dev)
+{
+	int ret = 0;
+	struct wireless_dev *wdev;
+
+	wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
+	if (!wdev)
+		return ERR_PTR(-ENOMEM);
+
+	wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
+	if (!wdev->wiphy) {
+		dev_err(dev, "cannot allocate wiphy\n");
+		ret = -ENOMEM;
+		goto err_wiphy_new;
+	}
+
+	return wdev;
+
+ err_wiphy_new:
+	kfree(wdev);
+	return ERR_PTR(ret);
+}
+
+
+static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
+{
+	struct region_code_mapping {
+		const char *cn;
+		int code;
+	};
+
+	/* Section 5.17.2 */
+	static const struct region_code_mapping regmap[] = {
+		{"US ", 0x10}, /* US FCC */
+		{"CA ", 0x20}, /* Canada */
+		{"EU ", 0x30}, /* ETSI   */
+		{"ES ", 0x31}, /* Spain  */
+		{"FR ", 0x32}, /* France */
+		{"JP ", 0x40}, /* Japan  */
+	};
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(regmap); i++)
+		if (regmap[i].code == priv->regioncode) {
+			regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
+			break;
+		}
+}
+
+static void lbs_reg_notifier(struct wiphy *wiphy,
+			     struct regulatory_request *request)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+
+	memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
+	if (lbs_iface_active(priv))
+		lbs_set_11d_domain_info(priv);
+}
+
+/*
+ * This function get's called after lbs_setup_firmware() determined the
+ * firmware capabities. So we can setup the wiphy according to our
+ * hardware/firmware.
+ */
+int lbs_cfg_register(struct lbs_private *priv)
+{
+	struct wireless_dev *wdev = priv->wdev;
+	int ret;
+
+	wdev->wiphy->max_scan_ssids = 1;
+	wdev->wiphy->max_scan_ie_len = 256;
+	wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+
+	wdev->wiphy->interface_modes =
+			BIT(NL80211_IFTYPE_STATION) |
+			BIT(NL80211_IFTYPE_ADHOC);
+	if (lbs_rtap_supported(priv))
+		wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+	if (lbs_mesh_activated(priv))
+		wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
+
+	wdev->wiphy->bands[NL80211_BAND_2GHZ] = &lbs_band_2ghz;
+
+	/*
+	 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
+	 * never seen a firmware without WPA
+	 */
+	wdev->wiphy->cipher_suites = cipher_suites;
+	wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+	wdev->wiphy->reg_notifier = lbs_reg_notifier;
+
+	ret = wiphy_register(wdev->wiphy);
+	if (ret < 0)
+		pr_err("cannot register wiphy device\n");
+
+	priv->wiphy_registered = true;
+
+	ret = register_netdev(priv->dev);
+	if (ret)
+		pr_err("cannot register network device\n");
+
+	INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
+
+	lbs_cfg_set_regulatory_hint(priv);
+
+	return ret;
+}
+
+void lbs_scan_deinit(struct lbs_private *priv)
+{
+	cancel_delayed_work_sync(&priv->scan_work);
+}
+
+
+void lbs_cfg_free(struct lbs_private *priv)
+{
+	struct wireless_dev *wdev = priv->wdev;
+
+	if (!wdev)
+		return;
+
+	if (priv->wiphy_registered)
+		wiphy_unregister(wdev->wiphy);
+
+	if (wdev->wiphy)
+		wiphy_free(wdev->wiphy);
+
+	kfree(wdev);
+}
diff --git a/drivers/net/wireless/marvell/libertas/cfg.h b/drivers/net/wireless/marvell/libertas/cfg.h
new file mode 100644
index 0000000000..0e48dc6d81
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/cfg.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LBS_CFG80211_H__
+#define __LBS_CFG80211_H__
+
+struct device;
+struct lbs_private;
+struct regulatory_request;
+struct wiphy;
+
+struct wireless_dev *lbs_cfg_alloc(struct device *dev);
+int lbs_cfg_register(struct lbs_private *priv);
+void lbs_cfg_free(struct lbs_private *priv);
+
+void lbs_send_disconnect_notification(struct lbs_private *priv,
+				      bool locally_generated);
+void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event);
+
+void lbs_scan_done(struct lbs_private *priv);
+void lbs_scan_deinit(struct lbs_private *priv);
+int lbs_disconnect(struct lbs_private *priv, u16 reason);
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/cmd.c b/drivers/net/wireless/marvell/libertas/cmd.c
new file mode 100644
index 0000000000..104d2b6dc9
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/cmd.c
@@ -0,0 +1,1597 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file contains the handling of command.
+ * It prepares command and sends it to firmware when it is ready.
+ */
+
+#include <linux/hardirq.h>
+#include <linux/kfifo.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/if_arp.h>
+#include <linux/export.h>
+
+#include "decl.h"
+#include "cfg.h"
+#include "cmd.h"
+
+#define CAL_NF(nf)		((s32)(-(s32)(nf)))
+#define CAL_RSSI(snr, nf)	((s32)((s32)(snr) + CAL_NF(nf)))
+
+/**
+ * lbs_cmd_copyback - Simple callback that copies response back into command
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ * @extra:	A pointer to the original command structure for which
+ *		'resp' is a response
+ * @resp:	A pointer to the command response
+ *
+ * returns:	0 on success, error on failure
+ */
+int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
+		     struct cmd_header *resp)
+{
+	struct cmd_header *buf = (void *)extra;
+	uint16_t copy_len;
+
+	copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
+	memcpy(buf, resp, copy_len);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
+
+/**
+ *  lbs_cmd_async_callback - Simple callback that ignores the result.
+ *  Use this if you just want to send a command to the hardware, but don't
+ *  care for the result.
+ *
+ *  @priv:	ignored
+ *  @extra:	ignored
+ *  @resp:	ignored
+ *
+ *  returns:	0 for success
+ */
+static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
+		     struct cmd_header *resp)
+{
+	return 0;
+}
+
+
+/**
+ *  is_command_allowed_in_ps - tests if a command is allowed in Power Save mode
+ *
+ *  @cmd:	the command ID
+ *
+ *  returns:	1 if allowed, 0 if not allowed
+ */
+static u8 is_command_allowed_in_ps(u16 cmd)
+{
+	switch (cmd) {
+	case CMD_802_11_RSSI:
+		return 1;
+	case CMD_802_11_HOST_SLEEP_CFG:
+		return 1;
+	default:
+		break;
+	}
+	return 0;
+}
+
+/**
+ *  lbs_update_hw_spec - Updates the hardware details like MAC address
+ *  and regulatory region
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_update_hw_spec(struct lbs_private *priv)
+{
+	struct cmd_ds_get_hw_spec cmd;
+	int ret = -1;
+	u32 i;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
+	ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
+	if (ret)
+		goto out;
+
+	priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
+
+	/* The firmware release is in an interesting format: the patch
+	 * level is in the most significant nibble ... so fix that: */
+	priv->fwrelease = le32_to_cpu(cmd.fwrelease);
+	priv->fwrelease = (priv->fwrelease << 8) |
+		(priv->fwrelease >> 24 & 0xff);
+
+	/* Some firmware capabilities:
+	 * CF card    firmware 5.0.16p0:   cap 0x00000303
+	 * USB dongle firmware 5.110.17p2: cap 0x00000303
+	 */
+	netdev_info(priv->dev, "%pM, fw %u.%u.%up%u, cap 0x%08x\n",
+		cmd.permanentaddr,
+		priv->fwrelease >> 24 & 0xff,
+		priv->fwrelease >> 16 & 0xff,
+		priv->fwrelease >>  8 & 0xff,
+		priv->fwrelease       & 0xff,
+		priv->fwcapinfo);
+	lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
+		    cmd.hwifversion, cmd.version);
+
+	/* Clamp region code to 8-bit since FW spec indicates that it should
+	 * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
+	 * returns non-zero high 8 bits here.
+	 *
+	 * Firmware version 4.0.102 used in CF8381 has region code shifted.  We
+	 * need to check for this problem and handle it properly.
+	 */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4)
+		priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF;
+	else
+		priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
+
+	for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
+		/* use the region code to search for the index */
+		if (priv->regioncode == lbs_region_code_to_index[i])
+			break;
+	}
+
+	/* if it's unidentified region code, use the default (USA) */
+	if (i >= MRVDRV_MAX_REGION_CODE) {
+		priv->regioncode = 0x10;
+		netdev_info(priv->dev,
+			    "unidentified region code; using the default (USA)\n");
+	}
+
+	if (priv->current_addr[0] == 0xff)
+		memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
+
+	if (!priv->copied_hwaddr) {
+		eth_hw_addr_set(priv->dev, priv->current_addr);
+		if (priv->mesh_dev)
+			eth_hw_addr_set(priv->mesh_dev, priv->current_addr);
+		priv->copied_hwaddr = 1;
+	}
+
+out:
+	return ret;
+}
+
+static int lbs_ret_host_sleep_cfg(struct lbs_private *priv, unsigned long dummy,
+			struct cmd_header *resp)
+{
+	if (priv->is_host_sleep_activated) {
+		priv->is_host_sleep_configured = 0;
+		if (priv->psstate == PS_STATE_FULL_POWER) {
+			priv->is_host_sleep_activated = 0;
+			wake_up_interruptible(&priv->host_sleep_q);
+		}
+	} else {
+		priv->is_host_sleep_configured = 1;
+	}
+
+	return 0;
+}
+
+int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
+		struct wol_config *p_wol_config)
+{
+	struct cmd_ds_host_sleep cmd_config;
+	int ret;
+
+	/*
+	 * Certain firmware versions do not support EHS_REMOVE_WAKEUP command
+	 * and the card will return a failure.  Since we need to be
+	 * able to reset the mask, in those cases we set a 0 mask instead.
+	 */
+	if (criteria == EHS_REMOVE_WAKEUP && !priv->ehs_remove_supported)
+		criteria = 0;
+
+	cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
+	cmd_config.criteria = cpu_to_le32(criteria);
+	cmd_config.gpio = priv->wol_gpio;
+	cmd_config.gap = priv->wol_gap;
+
+	if (p_wol_config != NULL)
+		memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
+				sizeof(struct wol_config));
+	else
+		cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
+
+	ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config.hdr,
+			le16_to_cpu(cmd_config.hdr.size),
+			lbs_ret_host_sleep_cfg, 0);
+	if (!ret) {
+		if (p_wol_config)
+			memcpy((uint8_t *) p_wol_config,
+					(uint8_t *)&cmd_config.wol_conf,
+					sizeof(struct wol_config));
+	} else {
+		netdev_info(priv->dev, "HOST_SLEEP_CFG failed %d\n", ret);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
+
+/**
+ *  lbs_set_ps_mode - Sets the Power Save mode
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @cmd_action: The Power Save operation (PS_MODE_ACTION_ENTER_PS or
+ *                         PS_MODE_ACTION_EXIT_PS)
+ *  @block:	Whether to block on a response or not
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_set_ps_mode(struct lbs_private *priv, u16 cmd_action, bool block)
+{
+	struct cmd_ds_802_11_ps_mode cmd;
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(cmd_action);
+
+	if (cmd_action == PS_MODE_ACTION_ENTER_PS) {
+		lbs_deb_cmd("PS_MODE: action ENTER_PS\n");
+		cmd.multipledtim = cpu_to_le16(1);  /* Default DTIM multiple */
+	} else if (cmd_action == PS_MODE_ACTION_EXIT_PS) {
+		lbs_deb_cmd("PS_MODE: action EXIT_PS\n");
+	} else {
+		/* We don't handle CONFIRM_SLEEP here because it needs to
+		 * be fastpathed to the firmware.
+		 */
+		lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action);
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	if (block)
+		ret = lbs_cmd_with_response(priv, CMD_802_11_PS_MODE, &cmd);
+	else
+		lbs_cmd_async(priv, CMD_802_11_PS_MODE, &cmd.hdr, sizeof (cmd));
+
+out:
+	return ret;
+}
+
+int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
+				struct sleep_params *sp)
+{
+	struct cmd_ds_802_11_sleep_params cmd;
+	int ret;
+
+	if (cmd_action == CMD_ACT_GET) {
+		memset(&cmd, 0, sizeof(cmd));
+	} else {
+		cmd.error = cpu_to_le16(sp->sp_error);
+		cmd.offset = cpu_to_le16(sp->sp_offset);
+		cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
+		cmd.calcontrol = sp->sp_calcontrol;
+		cmd.externalsleepclk = sp->sp_extsleepclk;
+		cmd.reserved = cpu_to_le16(sp->sp_reserved);
+	}
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(cmd_action);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
+
+	if (!ret) {
+		lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
+			    "calcontrol 0x%x extsleepclk 0x%x\n",
+			    le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
+			    le16_to_cpu(cmd.stabletime), cmd.calcontrol,
+			    cmd.externalsleepclk);
+
+		sp->sp_error = le16_to_cpu(cmd.error);
+		sp->sp_offset = le16_to_cpu(cmd.offset);
+		sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
+		sp->sp_calcontrol = cmd.calcontrol;
+		sp->sp_extsleepclk = cmd.externalsleepclk;
+		sp->sp_reserved = le16_to_cpu(cmd.reserved);
+	}
+
+	return ret;
+}
+
+static int lbs_wait_for_ds_awake(struct lbs_private *priv)
+{
+	int ret = 0;
+
+	if (priv->is_deep_sleep) {
+		if (!wait_event_interruptible_timeout(priv->ds_awake_q,
+					!priv->is_deep_sleep, (10 * HZ))) {
+			netdev_err(priv->dev, "ds_awake_q: timer expired\n");
+			ret = -1;
+		}
+	}
+
+	return ret;
+}
+
+int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
+{
+	int ret =  0;
+
+	if (deep_sleep) {
+		if (priv->is_deep_sleep != 1) {
+			lbs_deb_cmd("deep sleep: sleep\n");
+			BUG_ON(!priv->enter_deep_sleep);
+			ret = priv->enter_deep_sleep(priv);
+			if (!ret) {
+				netif_stop_queue(priv->dev);
+				netif_carrier_off(priv->dev);
+			}
+		} else {
+			netdev_err(priv->dev, "deep sleep: already enabled\n");
+		}
+	} else {
+		if (priv->is_deep_sleep) {
+			lbs_deb_cmd("deep sleep: wakeup\n");
+			BUG_ON(!priv->exit_deep_sleep);
+			ret = priv->exit_deep_sleep(priv);
+			if (!ret) {
+				ret = lbs_wait_for_ds_awake(priv);
+				if (ret)
+					netdev_err(priv->dev,
+						   "deep sleep: wakeup failed\n");
+			}
+		}
+	}
+
+	return ret;
+}
+
+static int lbs_ret_host_sleep_activate(struct lbs_private *priv,
+		unsigned long dummy,
+		struct cmd_header *cmd)
+{
+	priv->is_host_sleep_activated = 1;
+	wake_up_interruptible(&priv->host_sleep_q);
+
+	return 0;
+}
+
+int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep)
+{
+	struct cmd_header cmd;
+	int ret = 0;
+	uint32_t criteria = EHS_REMOVE_WAKEUP;
+
+	if (host_sleep) {
+		if (priv->is_host_sleep_activated != 1) {
+			memset(&cmd, 0, sizeof(cmd));
+			ret = lbs_host_sleep_cfg(priv, priv->wol_criteria,
+					(struct wol_config *)NULL);
+			if (ret) {
+				netdev_info(priv->dev,
+					    "Host sleep configuration failed: %d\n",
+					    ret);
+				return ret;
+			}
+			if (priv->psstate == PS_STATE_FULL_POWER) {
+				ret = __lbs_cmd(priv,
+						CMD_802_11_HOST_SLEEP_ACTIVATE,
+						&cmd,
+						sizeof(cmd),
+						lbs_ret_host_sleep_activate, 0);
+				if (ret)
+					netdev_info(priv->dev,
+						    "HOST_SLEEP_ACTIVATE failed: %d\n",
+						    ret);
+			}
+
+			if (!wait_event_interruptible_timeout(
+						priv->host_sleep_q,
+						priv->is_host_sleep_activated,
+						(10 * HZ))) {
+				netdev_err(priv->dev,
+					   "host_sleep_q: timer expired\n");
+				ret = -1;
+			}
+		} else {
+			netdev_err(priv->dev, "host sleep: already enabled\n");
+		}
+	} else {
+		if (priv->is_host_sleep_activated)
+			ret = lbs_host_sleep_cfg(priv, criteria,
+					(struct wol_config *)NULL);
+	}
+
+	return ret;
+}
+
+/**
+ *  lbs_set_snmp_mib - Set an SNMP MIB value
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @oid:	The OID to set in the firmware
+ *  @val:	Value to set the OID to
+ *
+ *  returns: 	   	0 on success, error on failure
+ */
+int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
+{
+	struct cmd_ds_802_11_snmp_mib cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof (cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.oid = cpu_to_le16((u16) oid);
+
+	switch (oid) {
+	case SNMP_MIB_OID_BSS_TYPE:
+		cmd.bufsize = cpu_to_le16(sizeof(u8));
+		cmd.value[0] = val;
+		break;
+	case SNMP_MIB_OID_11D_ENABLE:
+	case SNMP_MIB_OID_FRAG_THRESHOLD:
+	case SNMP_MIB_OID_RTS_THRESHOLD:
+	case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
+	case SNMP_MIB_OID_LONG_RETRY_LIMIT:
+		cmd.bufsize = cpu_to_le16(sizeof(u16));
+		*((__le16 *)(&cmd.value)) = cpu_to_le16(val);
+		break;
+	default:
+		lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
+		    le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
+
+out:
+	return ret;
+}
+
+/**
+ *  lbs_get_snmp_mib - Get an SNMP MIB value
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @oid:	The OID to retrieve from the firmware
+ *  @out_val:	Location for the returned value
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
+{
+	struct cmd_ds_802_11_snmp_mib cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof (cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_GET);
+	cmd.oid = cpu_to_le16(oid);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
+	if (ret)
+		goto out;
+
+	switch (le16_to_cpu(cmd.bufsize)) {
+	case sizeof(u8):
+		*out_val = cmd.value[0];
+		break;
+	case sizeof(u16):
+		*out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
+		break;
+	default:
+		lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
+		            oid, le16_to_cpu(cmd.bufsize));
+		break;
+	}
+
+out:
+	return ret;
+}
+
+/**
+ *  lbs_get_tx_power - Get the min, max, and current TX power
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @curlevel:	Current power level in dBm
+ *  @minlevel:	Minimum supported power level in dBm (optional)
+ *  @maxlevel:	Maximum supported power level in dBm (optional)
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
+		     s16 *maxlevel)
+{
+	struct cmd_ds_802_11_rf_tx_power cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_GET);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
+	if (ret == 0) {
+		*curlevel = le16_to_cpu(cmd.curlevel);
+		if (minlevel)
+			*minlevel = cmd.minlevel;
+		if (maxlevel)
+			*maxlevel = cmd.maxlevel;
+	}
+
+	return ret;
+}
+
+/**
+ *  lbs_set_tx_power - Set the TX power
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @dbm:	The desired power level in dBm
+ *
+ *  returns: 	   	0 on success, error on failure
+ */
+int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
+{
+	struct cmd_ds_802_11_rf_tx_power cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.curlevel = cpu_to_le16(dbm);
+
+	lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
+
+	return ret;
+}
+
+/**
+ *  lbs_set_monitor_mode - Enable or disable monitor mode
+ *  (only implemented on OLPC usb8388 FW)
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @enable:	1 to enable monitor mode, 0 to disable
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_set_monitor_mode(struct lbs_private *priv, int enable)
+{
+	struct cmd_ds_802_11_monitor_mode cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	if (enable)
+		cmd.mode = cpu_to_le16(0x1);
+
+	lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_MONITOR_MODE, &cmd);
+	if (ret == 0) {
+		priv->dev->type = enable ? ARPHRD_IEEE80211_RADIOTAP :
+						ARPHRD_ETHER;
+	}
+
+	return ret;
+}
+
+/**
+ *  lbs_get_channel - Get the radio channel
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	The channel on success, error on failure
+ */
+static int lbs_get_channel(struct lbs_private *priv)
+{
+	struct cmd_ds_802_11_rf_channel cmd;
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
+	if (ret)
+		goto out;
+
+	ret = le16_to_cpu(cmd.channel);
+	lbs_deb_cmd("current radio channel is %d\n", ret);
+
+out:
+	return ret;
+}
+
+int lbs_update_channel(struct lbs_private *priv)
+{
+	int ret;
+
+	/* the channel in f/w could be out of sync; get the current channel */
+	ret = lbs_get_channel(priv);
+	if (ret > 0) {
+		priv->channel = ret;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+/**
+ *  lbs_set_channel - Set the radio channel
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  @channel:	The desired channel, or 0 to clear a locked channel
+ *
+ *  returns:	0 on success, error on failure
+ */
+int lbs_set_channel(struct lbs_private *priv, u8 channel)
+{
+	struct cmd_ds_802_11_rf_channel cmd;
+#ifdef DEBUG
+	u8 old_channel = priv->channel;
+#endif
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
+	cmd.channel = cpu_to_le16(channel);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
+	if (ret)
+		goto out;
+
+	priv->channel = (uint8_t) le16_to_cpu(cmd.channel);
+	lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
+		priv->channel);
+
+out:
+	return ret;
+}
+
+/**
+ * lbs_get_rssi - Get current RSSI and noise floor
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ * @rssi:	On successful return, signal level in mBm
+ * @nf:		On successful return, Noise floor
+ *
+ * returns:	The channel on success, error on failure
+ */
+int lbs_get_rssi(struct lbs_private *priv, s8 *rssi, s8 *nf)
+{
+	struct cmd_ds_802_11_rssi cmd;
+	int ret = 0;
+
+	BUG_ON(rssi == NULL);
+	BUG_ON(nf == NULL);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	/* Average SNR over last 8 beacons */
+	cmd.n_or_snr = cpu_to_le16(8);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RSSI, &cmd);
+	if (ret == 0) {
+		*nf = CAL_NF(le16_to_cpu(cmd.nf));
+		*rssi = CAL_RSSI(le16_to_cpu(cmd.n_or_snr), le16_to_cpu(cmd.nf));
+	}
+
+	return ret;
+}
+
+/**
+ *  lbs_set_11d_domain_info - Send regulatory and 802.11d domain information
+ *  to the firmware
+ *
+ *  @priv:	pointer to &struct lbs_private
+ *
+ *  returns:	0 on success, error code on failure
+*/
+int lbs_set_11d_domain_info(struct lbs_private *priv)
+{
+	struct wiphy *wiphy = priv->wdev->wiphy;
+	struct ieee80211_supported_band **bands = wiphy->bands;
+	struct cmd_ds_802_11d_domain_info cmd;
+	struct mrvl_ie_domain_param_set *domain = &cmd.domain;
+	struct ieee80211_country_ie_triplet *t;
+	enum nl80211_band band;
+	struct ieee80211_channel *ch;
+	u8 num_triplet = 0;
+	u8 num_parsed_chan = 0;
+	u8 first_channel = 0, next_chan = 0, max_pwr = 0;
+	u8 i, flag = 0;
+	size_t triplet_size;
+	int ret = 0;
+
+	if (!priv->country_code[0])
+		goto out;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+
+	lbs_deb_11d("Setting country code '%c%c'\n",
+		    priv->country_code[0], priv->country_code[1]);
+
+	domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN);
+
+	/* Set country code */
+	domain->country_code[0] = priv->country_code[0];
+	domain->country_code[1] = priv->country_code[1];
+	domain->country_code[2] = ' ';
+
+	/* Now set up the channel triplets; firmware is somewhat picky here
+	 * and doesn't validate channel numbers and spans; hence it would
+	 * interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39.  Since
+	 * the last 3 aren't valid channels, the driver is responsible for
+	 * splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20)
+	 * etc.
+	 */
+	for (band = 0;
+	     (band < NUM_NL80211_BANDS) && (num_triplet < MAX_11D_TRIPLETS);
+	     band++) {
+
+		if (!bands[band])
+			continue;
+
+		for (i = 0;
+		     (i < bands[band]->n_channels) && (num_triplet < MAX_11D_TRIPLETS);
+		     i++) {
+			ch = &bands[band]->channels[i];
+			if (ch->flags & IEEE80211_CHAN_DISABLED)
+				continue;
+
+			if (!flag) {
+				flag = 1;
+				next_chan = first_channel = (u32) ch->hw_value;
+				max_pwr = ch->max_power;
+				num_parsed_chan = 1;
+				continue;
+			}
+
+			if ((ch->hw_value == next_chan + 1) &&
+					(ch->max_power == max_pwr)) {
+				/* Consolidate adjacent channels */
+				next_chan++;
+				num_parsed_chan++;
+			} else {
+				/* Add this triplet */
+				lbs_deb_11d("11D triplet (%d, %d, %d)\n",
+					first_channel, num_parsed_chan,
+					max_pwr);
+				t = &domain->triplet[num_triplet];
+				t->chans.first_channel = first_channel;
+				t->chans.num_channels = num_parsed_chan;
+				t->chans.max_power = max_pwr;
+				num_triplet++;
+				flag = 0;
+			}
+		}
+
+		if (flag) {
+			/* Add last triplet */
+			lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel,
+				num_parsed_chan, max_pwr);
+			t = &domain->triplet[num_triplet];
+			t->chans.first_channel = first_channel;
+			t->chans.num_channels = num_parsed_chan;
+			t->chans.max_power = max_pwr;
+			num_triplet++;
+		}
+	}
+
+	lbs_deb_11d("# triplets %d\n", num_triplet);
+
+	/* Set command header sizes */
+	triplet_size = num_triplet * sizeof(struct ieee80211_country_ie_triplet);
+	domain->header.len = cpu_to_le16(sizeof(domain->country_code) +
+					triplet_size);
+
+	lbs_deb_hex(LBS_DEB_11D, "802.11D domain param set",
+			(u8 *) &cmd.domain.country_code,
+			le16_to_cpu(domain->header.len));
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd.hdr) +
+				   sizeof(cmd.action) +
+				   sizeof(cmd.domain.header) +
+				   sizeof(cmd.domain.country_code) +
+				   triplet_size);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11D_DOMAIN_INFO, &cmd);
+
+out:
+	return ret;
+}
+
+/**
+ *  lbs_get_reg - Read a MAC, Baseband, or RF register
+ *
+ *  @priv:	pointer to &struct lbs_private
+ *  @reg:	register command, one of CMD_MAC_REG_ACCESS,
+ *		CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
+ *  @offset:	byte offset of the register to get
+ *  @value:	on success, the value of the register at 'offset'
+ *
+ *  returns:	0 on success, error code on failure
+*/
+int lbs_get_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 *value)
+{
+	struct cmd_ds_reg_access cmd;
+	int ret = 0;
+
+	BUG_ON(value == NULL);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_GET);
+	cmd.offset = cpu_to_le16(offset);
+
+	if (reg != CMD_MAC_REG_ACCESS &&
+	    reg != CMD_BBP_REG_ACCESS &&
+	    reg != CMD_RF_REG_ACCESS) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = lbs_cmd_with_response(priv, reg, &cmd);
+	if (!ret) {
+		if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
+			*value = cmd.value.bbp_rf;
+		else if (reg == CMD_MAC_REG_ACCESS)
+			*value = le32_to_cpu(cmd.value.mac);
+	}
+
+out:
+	return ret;
+}
+
+/**
+ *  lbs_set_reg - Write a MAC, Baseband, or RF register
+ *
+ *  @priv:	pointer to &struct lbs_private
+ *  @reg:	register command, one of CMD_MAC_REG_ACCESS,
+ *		CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
+ *  @offset:	byte offset of the register to set
+ *  @value:	the value to write to the register at 'offset'
+ *
+ *  returns:	0 on success, error code on failure
+*/
+int lbs_set_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 value)
+{
+	struct cmd_ds_reg_access cmd;
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.offset = cpu_to_le16(offset);
+
+	if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
+		cmd.value.bbp_rf = (u8) (value & 0xFF);
+	else if (reg == CMD_MAC_REG_ACCESS)
+		cmd.value.mac = cpu_to_le32(value);
+	else {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = lbs_cmd_with_response(priv, reg, &cmd);
+
+out:
+	return ret;
+}
+
+static void lbs_queue_cmd(struct lbs_private *priv,
+			  struct cmd_ctrl_node *cmdnode)
+{
+	unsigned long flags;
+	int addtail = 1;
+
+	if (!cmdnode) {
+		lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
+		return;
+	}
+	if (!cmdnode->cmdbuf->size) {
+		lbs_deb_host("DNLD_CMD: cmd size is zero\n");
+		return;
+	}
+	cmdnode->result = 0;
+
+	/* Exit_PS command needs to be queued in the header always. */
+	if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
+		struct cmd_ds_802_11_ps_mode *psm = (void *)cmdnode->cmdbuf;
+
+		if (psm->action == cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
+			if (priv->psstate != PS_STATE_FULL_POWER)
+				addtail = 0;
+		}
+	}
+
+	if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_WAKEUP_CONFIRM)
+		addtail = 0;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (addtail)
+		list_add_tail(&cmdnode->list, &priv->cmdpendingq);
+	else
+		list_add(&cmdnode->list, &priv->cmdpendingq);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
+		     le16_to_cpu(cmdnode->cmdbuf->command));
+}
+
+static void lbs_submit_command(struct lbs_private *priv,
+			       struct cmd_ctrl_node *cmdnode)
+{
+	unsigned long flags;
+	struct cmd_header *cmd;
+	uint16_t cmdsize;
+	uint16_t command;
+	int timeo = 3 * HZ;
+	int ret;
+
+	cmd = cmdnode->cmdbuf;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->seqnum++;
+	cmd->seqnum = cpu_to_le16(priv->seqnum);
+	priv->cur_cmd = cmdnode;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	cmdsize = le16_to_cpu(cmd->size);
+	command = le16_to_cpu(cmd->command);
+
+	/* These commands take longer */
+	if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE)
+		timeo = 5 * HZ;
+
+	lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
+		     command, le16_to_cpu(cmd->seqnum), cmdsize);
+	lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
+
+	ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
+
+	if (ret) {
+		netdev_info(priv->dev, "DNLD_CMD: hw_host_to_card failed: %d\n",
+			    ret);
+		/* Reset dnld state machine, report failure */
+		priv->dnld_sent = DNLD_RES_RECEIVED;
+		lbs_complete_command(priv, cmdnode, ret);
+	}
+
+	if (command == CMD_802_11_DEEP_SLEEP) {
+		if (priv->is_auto_deep_sleep_enabled) {
+			priv->wakeup_dev_required = 1;
+			priv->dnld_sent = 0;
+		}
+		priv->is_deep_sleep = 1;
+		lbs_complete_command(priv, cmdnode, 0);
+	} else {
+		/* Setup the timer after transmit command */
+		mod_timer(&priv->command_timer, jiffies + timeo);
+	}
+}
+
+/*
+ *  This function inserts command node to cmdfreeq
+ *  after cleans it. Requires priv->driver_lock held.
+ */
+static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
+					 struct cmd_ctrl_node *cmdnode)
+{
+	if (!cmdnode)
+		return;
+
+	cmdnode->callback = NULL;
+	cmdnode->callback_arg = 0;
+
+	memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
+
+	list_add_tail(&cmdnode->list, &priv->cmdfreeq);
+}
+
+static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
+	struct cmd_ctrl_node *ptempcmd)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	__lbs_cleanup_and_insert_cmd(priv, ptempcmd);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+void __lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
+			    int result)
+{
+	/*
+	 * Normally, commands are removed from cmdpendingq before being
+	 * submitted. However, we can arrive here on alternative codepaths
+	 * where the command is still pending. Make sure the command really
+	 * isn't part of a list at this point.
+	 */
+	list_del_init(&cmd->list);
+
+	cmd->result = result;
+	cmd->cmdwaitqwoken = 1;
+	wake_up(&cmd->cmdwait_q);
+
+	if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
+		__lbs_cleanup_and_insert_cmd(priv, cmd);
+	priv->cur_cmd = NULL;
+	wake_up(&priv->waitq);
+}
+
+void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
+			  int result)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	__lbs_complete_command(priv, cmd, result);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
+{
+	struct cmd_ds_802_11_radio_control cmd;
+	int ret = -EINVAL;
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.control = 0;
+
+	/* Only v8 and below support setting the preamble */
+	if (priv->fwrelease < 0x09000000) {
+		switch (preamble) {
+		case RADIO_PREAMBLE_SHORT:
+		case RADIO_PREAMBLE_AUTO:
+		case RADIO_PREAMBLE_LONG:
+			cmd.control = cpu_to_le16(preamble);
+			break;
+		default:
+			goto out;
+		}
+	}
+
+	if (radio_on)
+		cmd.control |= cpu_to_le16(0x1);
+	else {
+		cmd.control &= cpu_to_le16(~0x1);
+		priv->txpower_cur = 0;
+	}
+
+	lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
+		    radio_on ? "ON" : "OFF", preamble);
+
+	priv->radio_on = radio_on;
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
+
+out:
+	return ret;
+}
+
+void lbs_set_mac_control(struct lbs_private *priv)
+{
+	struct cmd_ds_mac_control cmd;
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(priv->mac_control);
+	cmd.reserved = 0;
+
+	lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
+}
+
+int lbs_set_mac_control_sync(struct lbs_private *priv)
+{
+	struct cmd_ds_mac_control cmd;
+	int ret = 0;
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(priv->mac_control);
+	cmd.reserved = 0;
+	ret = lbs_cmd_with_response(priv, CMD_MAC_CONTROL, &cmd);
+
+	return ret;
+}
+
+/**
+ *  lbs_allocate_cmd_buffer - allocates the command buffer and links
+ *  it to command free queue
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	0 for success or -1 on error
+ */
+int lbs_allocate_cmd_buffer(struct lbs_private *priv)
+{
+	int ret = 0;
+	u32 bufsize;
+	u32 i;
+	struct cmd_ctrl_node *cmdarray;
+
+	/* Allocate and initialize the command array */
+	bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
+	if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
+		lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
+		ret = -1;
+		goto done;
+	}
+	priv->cmd_array = cmdarray;
+
+	/* Allocate and initialize each command buffer in the command array */
+	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
+		cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
+		if (!cmdarray[i].cmdbuf) {
+			lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
+			ret = -1;
+			goto done;
+		}
+	}
+
+	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
+		init_waitqueue_head(&cmdarray[i].cmdwait_q);
+		lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
+	}
+	ret = 0;
+
+done:
+	return ret;
+}
+
+/**
+ *  lbs_free_cmd_buffer - free the command buffer
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	0 for success
+ */
+int lbs_free_cmd_buffer(struct lbs_private *priv)
+{
+	struct cmd_ctrl_node *cmdarray;
+	unsigned int i;
+
+	/* need to check if cmd array is allocated or not */
+	if (priv->cmd_array == NULL) {
+		lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
+		goto done;
+	}
+
+	cmdarray = priv->cmd_array;
+
+	/* Release shared memory buffers */
+	for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
+		if (cmdarray[i].cmdbuf) {
+			kfree(cmdarray[i].cmdbuf);
+			cmdarray[i].cmdbuf = NULL;
+		}
+	}
+
+	/* Release cmd_ctrl_node */
+	if (priv->cmd_array) {
+		kfree(priv->cmd_array);
+		priv->cmd_array = NULL;
+	}
+
+done:
+	return 0;
+}
+
+/**
+ *  lbs_get_free_cmd_node - gets a free command node if available in
+ *  command free queue
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	A pointer to &cmd_ctrl_node structure on success
+ *		or %NULL on error
+ */
+static struct cmd_ctrl_node *lbs_get_free_cmd_node(struct lbs_private *priv)
+{
+	struct cmd_ctrl_node *tempnode;
+	unsigned long flags;
+
+	if (!priv)
+		return NULL;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (!list_empty(&priv->cmdfreeq)) {
+		tempnode = list_first_entry(&priv->cmdfreeq,
+					    struct cmd_ctrl_node, list);
+		list_del_init(&tempnode->list);
+	} else {
+		lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
+		tempnode = NULL;
+	}
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	return tempnode;
+}
+
+/**
+ *  lbs_execute_next_command - execute next command in command
+ *  pending queue. Will put firmware back to PS mode if applicable.
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *
+ *  returns:	0 on success or -1 on error
+ */
+int lbs_execute_next_command(struct lbs_private *priv)
+{
+	struct cmd_ctrl_node *cmdnode = NULL;
+	struct cmd_header *cmd;
+	unsigned long flags;
+	int ret = 0;
+
+	/* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
+	 * only caller to us is lbs_thread() and we get even when a
+	 * data packet is received */
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (priv->cur_cmd) {
+		netdev_alert(priv->dev,
+			     "EXEC_NEXT_CMD: already processing command!\n");
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		ret = -1;
+		goto done;
+	}
+
+	if (!list_empty(&priv->cmdpendingq)) {
+		cmdnode = list_first_entry(&priv->cmdpendingq,
+					   struct cmd_ctrl_node, list);
+	}
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	if (cmdnode) {
+		cmd = cmdnode->cmdbuf;
+
+		if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
+			if ((priv->psstate == PS_STATE_SLEEP) ||
+			    (priv->psstate == PS_STATE_PRE_SLEEP)) {
+				lbs_deb_host(
+				       "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
+				       le16_to_cpu(cmd->command),
+				       priv->psstate);
+				ret = -1;
+				goto done;
+			}
+			lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
+				     "0x%04x in psstate %d\n",
+				     le16_to_cpu(cmd->command), priv->psstate);
+		} else if (priv->psstate != PS_STATE_FULL_POWER) {
+			/*
+			 * 1. Non-PS command:
+			 * Queue it. set needtowakeup to TRUE if current state
+			 * is SLEEP, otherwise call send EXIT_PS.
+			 * 2. PS command but not EXIT_PS:
+			 * Ignore it.
+			 * 3. PS command EXIT_PS:
+			 * Set needtowakeup to TRUE if current state is SLEEP,
+			 * otherwise send this command down to firmware
+			 * immediately.
+			 */
+			if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
+				/*  Prepare to send Exit PS,
+				 *  this non PS command will be sent later */
+				if ((priv->psstate == PS_STATE_SLEEP)
+				    || (priv->psstate == PS_STATE_PRE_SLEEP)
+				    ) {
+					/* w/ new scheme, it will not reach here.
+					   since it is blocked in main_thread. */
+					priv->needtowakeup = 1;
+				} else {
+					lbs_set_ps_mode(priv,
+							PS_MODE_ACTION_EXIT_PS,
+							false);
+				}
+
+				ret = 0;
+				goto done;
+			} else {
+				/*
+				 * PS command. Ignore it if it is not Exit_PS.
+				 * otherwise send it down immediately.
+				 */
+				struct cmd_ds_802_11_ps_mode *psm = (void *)cmd;
+
+				lbs_deb_host(
+				       "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
+				       psm->action);
+				if (psm->action !=
+				    cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
+					lbs_deb_host(
+					       "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
+					lbs_complete_command(priv, cmdnode, 0);
+
+					ret = 0;
+					goto done;
+				}
+
+				if ((priv->psstate == PS_STATE_SLEEP) ||
+				    (priv->psstate == PS_STATE_PRE_SLEEP)) {
+					lbs_deb_host(
+					       "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
+					lbs_complete_command(priv, cmdnode, 0);
+					priv->needtowakeup = 1;
+
+					ret = 0;
+					goto done;
+				}
+
+				lbs_deb_host(
+				       "EXEC_NEXT_CMD: sending EXIT_PS\n");
+			}
+		}
+		spin_lock_irqsave(&priv->driver_lock, flags);
+		list_del_init(&cmdnode->list);
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
+			    le16_to_cpu(cmd->command));
+		lbs_submit_command(priv, cmdnode);
+	} else {
+		/*
+		 * check if in power save mode, if yes, put the device back
+		 * to PS mode
+		 */
+		if ((priv->psmode != LBS802_11POWERMODECAM) &&
+		    (priv->psstate == PS_STATE_FULL_POWER) &&
+		    (priv->connect_status == LBS_CONNECTED)) {
+			lbs_deb_host(
+				"EXEC_NEXT_CMD: cmdpendingq empty, go back to PS_SLEEP");
+			lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS,
+					false);
+		}
+	}
+
+	ret = 0;
+done:
+	return ret;
+}
+
+static void lbs_send_confirmsleep(struct lbs_private *priv)
+{
+	unsigned long flags;
+	int ret;
+
+	lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
+		sizeof(confirm_sleep));
+
+	ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
+		sizeof(confirm_sleep));
+	if (ret) {
+		netdev_alert(priv->dev, "confirm_sleep failed\n");
+		return;
+	}
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	/* We don't get a response on the sleep-confirmation */
+	priv->dnld_sent = DNLD_RES_RECEIVED;
+
+	if (priv->is_host_sleep_configured) {
+		priv->is_host_sleep_activated = 1;
+		wake_up_interruptible(&priv->host_sleep_q);
+	}
+
+	/* If nothing to do, go back to sleep (?) */
+	if (!kfifo_len(&priv->event_fifo) && !priv->resp_len[priv->resp_idx])
+		priv->psstate = PS_STATE_SLEEP;
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+/**
+ * lbs_ps_confirm_sleep - checks condition and prepares to
+ * send sleep confirm command to firmware if ok
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ *
+ * returns:	n/a
+ */
+void lbs_ps_confirm_sleep(struct lbs_private *priv)
+{
+	unsigned long flags =0;
+	int allowed = 1;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	if (priv->dnld_sent) {
+		allowed = 0;
+		lbs_deb_host("dnld_sent was set\n");
+	}
+
+	/* In-progress command? */
+	if (priv->cur_cmd) {
+		allowed = 0;
+		lbs_deb_host("cur_cmd was set\n");
+	}
+
+	/* Pending events or command responses? */
+	if (kfifo_len(&priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
+		allowed = 0;
+		lbs_deb_host("pending events or command responses\n");
+	}
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	if (allowed) {
+		lbs_deb_host("sending lbs_ps_confirm_sleep\n");
+		lbs_send_confirmsleep(priv);
+	} else {
+		lbs_deb_host("sleep confirm has been delayed\n");
+	}
+}
+
+
+/**
+ * lbs_set_tpc_cfg - Configures the transmission power control functionality
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ * @enable:	Transmission power control enable
+ * @p0:		Power level when link quality is good (dBm).
+ * @p1:		Power level when link quality is fair (dBm).
+ * @p2:		Power level when link quality is poor (dBm).
+ * @usesnr:	Use Signal to Noise Ratio in TPC
+ *
+ * returns:	0 on success
+ */
+int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
+		int8_t p2, int usesnr)
+{
+	struct cmd_ds_802_11_tpc_cfg cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.enable = !!enable;
+	cmd.usesnr = !!usesnr;
+	cmd.P0 = p0;
+	cmd.P1 = p1;
+	cmd.P2 = p2;
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
+
+	return ret;
+}
+
+/**
+ * lbs_set_power_adapt_cfg - Configures the power adaptation settings
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ * @enable:	Power adaptation enable
+ * @p0:		Power level for 1, 2, 5.5 and 11 Mbps (dBm).
+ * @p1:		Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
+ * @p2:		Power level for 48 and 54 Mbps (dBm).
+ *
+ * returns:	0 on Success
+ */
+
+int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
+		int8_t p1, int8_t p2)
+{
+	struct cmd_ds_802_11_pa_cfg cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	cmd.enable = !!enable;
+	cmd.P0 = p0;
+	cmd.P1 = p1;
+	cmd.P2 = p2;
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
+
+	return ret;
+}
+
+
+struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
+	uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
+	int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
+	unsigned long callback_arg)
+{
+	struct cmd_ctrl_node *cmdnode;
+
+	if (priv->surpriseremoved) {
+		lbs_deb_host("PREP_CMD: card removed\n");
+		cmdnode = ERR_PTR(-ENOENT);
+		goto done;
+	}
+
+	/* No commands are allowed in Deep Sleep until we toggle the GPIO
+	 * to wake up the card and it has signaled that it's ready.
+	 */
+	if (!priv->is_auto_deep_sleep_enabled) {
+		if (priv->is_deep_sleep) {
+			lbs_deb_cmd("command not allowed in deep sleep\n");
+			cmdnode = ERR_PTR(-EBUSY);
+			goto done;
+		}
+	}
+
+	cmdnode = lbs_get_free_cmd_node(priv);
+	if (cmdnode == NULL) {
+		lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
+
+		/* Wake up main thread to execute next command */
+		wake_up(&priv->waitq);
+		cmdnode = ERR_PTR(-ENOBUFS);
+		goto done;
+	}
+
+	cmdnode->callback = callback;
+	cmdnode->callback_arg = callback_arg;
+
+	/* Copy the incoming command to the buffer */
+	memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
+
+	/* Set command, clean result, move to buffer */
+	cmdnode->cmdbuf->command = cpu_to_le16(command);
+	cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
+	cmdnode->cmdbuf->result  = 0;
+
+	lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
+
+	cmdnode->cmdwaitqwoken = 0;
+	lbs_queue_cmd(priv, cmdnode);
+	wake_up(&priv->waitq);
+
+ done:
+	return cmdnode;
+}
+
+void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
+	struct cmd_header *in_cmd, int in_cmd_size)
+{
+	__lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
+		lbs_cmd_async_callback, 0);
+}
+
+int __lbs_cmd(struct lbs_private *priv, uint16_t command,
+	      struct cmd_header *in_cmd, int in_cmd_size,
+	      int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
+	      unsigned long callback_arg)
+{
+	struct cmd_ctrl_node *cmdnode;
+	unsigned long flags;
+	int ret = 0;
+
+	cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
+				  callback, callback_arg);
+	if (IS_ERR(cmdnode)) {
+		ret = PTR_ERR(cmdnode);
+		goto done;
+	}
+
+	might_sleep();
+
+	/*
+	 * Be careful with signals here. A signal may be received as the system
+	 * goes into suspend or resume. We do not want this to interrupt the
+	 * command, so we perform an uninterruptible sleep.
+	 */
+	wait_event(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	ret = cmdnode->result;
+	if (ret)
+		netdev_info(priv->dev, "PREP_CMD: command 0x%04x failed: %d\n",
+			    command, ret);
+
+	__lbs_cleanup_and_insert_cmd(priv, cmdnode);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+done:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(__lbs_cmd);
diff --git a/drivers/net/wireless/marvell/libertas/cmd.h b/drivers/net/wireless/marvell/libertas/cmd.h
new file mode 100644
index 0000000000..3c19307466
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/cmd.h
@@ -0,0 +1,142 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2007, Red Hat, Inc. */
+
+#ifndef _LBS_CMD_H_
+#define _LBS_CMD_H_
+
+#include <net/cfg80211.h>
+
+#include "host.h"
+#include "dev.h"
+
+
+/* Command & response transfer between host and card */
+
+struct cmd_ctrl_node {
+	struct list_head list;
+	int result;
+	/* command response */
+	int (*callback)(struct lbs_private *,
+			unsigned long,
+			struct cmd_header *);
+	unsigned long callback_arg;
+	/* command data */
+	struct cmd_header *cmdbuf;
+	/* wait queue */
+	u16 cmdwaitqwoken;
+	wait_queue_head_t cmdwait_q;
+};
+
+
+/* lbs_cmd() infers the size of the buffer to copy data back into, from
+   the size of the target of the pointer. Since the command to be sent
+   may often be smaller, that size is set in cmd->size by the caller.*/
+#define lbs_cmd(priv, cmdnr, cmd, cb, cb_arg)	({		\
+	uint16_t __sz = le16_to_cpu((cmd)->hdr.size);		\
+	(cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd)));		\
+	__lbs_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg);	\
+})
+
+#define lbs_cmd_with_response(priv, cmdnr, cmd)	\
+	lbs_cmd(priv, cmdnr, cmd, lbs_cmd_copyback, (unsigned long) (cmd))
+
+void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
+	struct cmd_header *in_cmd, int in_cmd_size);
+
+int __lbs_cmd(struct lbs_private *priv, uint16_t command,
+	      struct cmd_header *in_cmd, int in_cmd_size,
+	      int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
+	      unsigned long callback_arg);
+
+struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
+	uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
+	int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
+	unsigned long callback_arg);
+
+int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
+		     struct cmd_header *resp);
+
+int lbs_allocate_cmd_buffer(struct lbs_private *priv);
+int lbs_free_cmd_buffer(struct lbs_private *priv);
+
+int lbs_execute_next_command(struct lbs_private *priv);
+void __lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
+			    int result);
+void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
+			  int result);
+int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len);
+
+
+/* From cmdresp.c */
+
+void lbs_mac_event_disconnected(struct lbs_private *priv,
+				bool locally_generated);
+
+
+
+/* Events */
+
+void lbs_process_event(struct lbs_private *priv, u32 event);
+
+
+/* Actual commands */
+
+int lbs_update_hw_spec(struct lbs_private *priv);
+
+int lbs_set_channel(struct lbs_private *priv, u8 channel);
+
+int lbs_update_channel(struct lbs_private *priv);
+
+int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
+		struct wol_config *p_wol_config);
+
+int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
+				struct sleep_params *sp);
+
+void lbs_ps_confirm_sleep(struct lbs_private *priv);
+
+int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on);
+
+void lbs_set_mac_control(struct lbs_private *priv);
+int lbs_set_mac_control_sync(struct lbs_private *priv);
+
+int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
+		     s16 *maxlevel);
+
+int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val);
+
+int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val);
+
+
+/* Commands only used in wext.c, assoc. and scan.c */
+
+int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
+		int8_t p1, int8_t p2);
+
+int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
+		int8_t p2, int usesnr);
+
+int lbs_set_data_rate(struct lbs_private *priv, u8 rate);
+
+int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
+				      uint16_t cmd_action);
+
+int lbs_set_tx_power(struct lbs_private *priv, s16 dbm);
+
+int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep);
+
+int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep);
+
+int lbs_set_monitor_mode(struct lbs_private *priv, int enable);
+
+int lbs_get_rssi(struct lbs_private *priv, s8 *snr, s8 *nf);
+
+int lbs_set_11d_domain_info(struct lbs_private *priv);
+
+int lbs_get_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 *value);
+
+int lbs_set_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 value);
+
+int lbs_set_ps_mode(struct lbs_private *priv, u16 cmd_action, bool block);
+
+#endif /* _LBS_CMD_H */
diff --git a/drivers/net/wireless/marvell/libertas/cmdresp.c b/drivers/net/wireless/marvell/libertas/cmdresp.c
new file mode 100644
index 0000000000..74cb7551f4
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/cmdresp.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains the handling of command
+ * responses as well as events generated by firmware.
+ */
+
+#include <linux/hardirq.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <asm/unaligned.h>
+#include <net/cfg80211.h>
+
+#include "cfg.h"
+#include "cmd.h"
+
+/**
+ * lbs_mac_event_disconnected - handles disconnect event. It
+ * reports disconnect to upper layer, clean tx/rx packets,
+ * reset link state etc.
+ *
+ * @priv:	A pointer to struct lbs_private structure
+ * @locally_generated: indicates disconnect was requested locally
+ *		(usually by userspace)
+ *
+ * returns:	n/a
+ */
+void lbs_mac_event_disconnected(struct lbs_private *priv,
+				bool locally_generated)
+{
+	unsigned long flags;
+
+	if (priv->connect_status != LBS_CONNECTED)
+		return;
+
+	/*
+	 * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
+	 * It causes problem in the Supplicant
+	 */
+	msleep_interruptible(1000);
+
+	if (priv->wdev->iftype == NL80211_IFTYPE_STATION)
+		lbs_send_disconnect_notification(priv, locally_generated);
+
+	/* report disconnect to upper layer */
+	netif_stop_queue(priv->dev);
+	netif_carrier_off(priv->dev);
+
+	/* Free Tx and Rx packets */
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	dev_kfree_skb_irq(priv->currenttxskb);
+	priv->currenttxskb = NULL;
+	priv->tx_pending_len = 0;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	priv->connect_status = LBS_DISCONNECTED;
+
+	if (priv->psstate != PS_STATE_FULL_POWER) {
+		/* make firmware to exit PS mode */
+		lbs_deb_cmd("disconnected, so exit PS mode\n");
+		lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, false);
+	}
+}
+
+int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
+{
+	uint16_t respcmd, curcmd;
+	struct cmd_header *resp;
+	int ret = 0;
+	unsigned long flags;
+	uint16_t result;
+
+	mutex_lock(&priv->lock);
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (!priv->cur_cmd) {
+		lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
+		ret = -1;
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		goto done;
+	}
+
+	resp = (void *)data;
+	curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
+	respcmd = le16_to_cpu(resp->command);
+	result = le16_to_cpu(resp->result);
+
+	lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
+		     respcmd, le16_to_cpu(resp->seqnum), len);
+	lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
+
+	if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
+		netdev_info(priv->dev,
+			    "Received CMD_RESP with invalid sequence %d (expected %d)\n",
+			    le16_to_cpu(resp->seqnum),
+			    le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		ret = -1;
+		goto done;
+	}
+	if (respcmd != CMD_RET(curcmd) &&
+	    respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
+		netdev_info(priv->dev, "Invalid CMD_RESP %x to command %x!\n",
+			    respcmd, curcmd);
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		ret = -1;
+		goto done;
+	}
+
+	if (resp->result == cpu_to_le16(0x0004)) {
+		/* 0x0004 means -EAGAIN. Drop the response, let it time out
+		   and be resubmitted */
+		netdev_info(priv->dev,
+			    "Firmware returns DEFER to command %x. Will let it time out...\n",
+			    le16_to_cpu(resp->command));
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		ret = -1;
+		goto done;
+	}
+
+	/* Now we got response from FW, cancel the command timer */
+	del_timer(&priv->command_timer);
+	priv->cmd_timed_out = 0;
+
+	if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
+		/* struct cmd_ds_802_11_ps_mode also contains
+		 * the header
+		 */
+		struct cmd_ds_802_11_ps_mode *psmode = (void *)resp;
+		u16 action = le16_to_cpu(psmode->action);
+
+		lbs_deb_host(
+		       "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
+		       result, action);
+
+		if (result) {
+			lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
+				    result);
+			/*
+			 * We should not re-try enter-ps command in
+			 * ad-hoc mode. It takes place in
+			 * lbs_execute_next_command().
+			 */
+			if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR &&
+			    action == PS_MODE_ACTION_ENTER_PS)
+				priv->psmode = LBS802_11POWERMODECAM;
+		} else if (action == PS_MODE_ACTION_ENTER_PS) {
+			priv->needtowakeup = 0;
+			priv->psstate = PS_STATE_AWAKE;
+
+			lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
+			if (priv->connect_status != LBS_CONNECTED) {
+				/*
+				 * When Deauth Event received before Enter_PS command
+				 * response, We need to wake up the firmware.
+				 */
+				lbs_deb_host(
+				       "disconnected, invoking lbs_ps_wakeup\n");
+
+				spin_unlock_irqrestore(&priv->driver_lock, flags);
+				mutex_unlock(&priv->lock);
+				lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS,
+						false);
+				mutex_lock(&priv->lock);
+				spin_lock_irqsave(&priv->driver_lock, flags);
+			}
+		} else if (action == PS_MODE_ACTION_EXIT_PS) {
+			priv->needtowakeup = 0;
+			priv->psstate = PS_STATE_FULL_POWER;
+			lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
+		} else {
+			lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
+		}
+
+		__lbs_complete_command(priv, priv->cur_cmd, result);
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+		ret = 0;
+		goto done;
+	}
+
+	/* If the command is not successful, cleanup and return failure */
+	if ((result != 0 || !(respcmd & 0x8000))) {
+		lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
+		       result, respcmd);
+		/*
+		 * Handling errors here
+		 */
+		switch (respcmd) {
+		case CMD_RET(CMD_GET_HW_SPEC):
+		case CMD_RET(CMD_802_11_RESET):
+			lbs_deb_host("CMD_RESP: reset failed\n");
+			break;
+
+		}
+		__lbs_complete_command(priv, priv->cur_cmd, result);
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+		ret = -1;
+		goto done;
+	}
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	if (priv->cur_cmd && priv->cur_cmd->callback) {
+		ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
+				resp);
+	}
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (priv->cur_cmd) {
+		/* Clean up and Put current command back to cmdfreeq */
+		__lbs_complete_command(priv, priv->cur_cmd, result);
+	}
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+done:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+void lbs_process_event(struct lbs_private *priv, u32 event)
+{
+	struct cmd_header cmd;
+
+	switch (event) {
+	case MACREG_INT_CODE_LINK_SENSED:
+		lbs_deb_cmd("EVENT: link sensed\n");
+		break;
+
+	case MACREG_INT_CODE_DEAUTHENTICATED:
+		lbs_deb_cmd("EVENT: deauthenticated\n");
+		lbs_mac_event_disconnected(priv, false);
+		break;
+
+	case MACREG_INT_CODE_DISASSOCIATED:
+		lbs_deb_cmd("EVENT: disassociated\n");
+		lbs_mac_event_disconnected(priv, false);
+		break;
+
+	case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
+		lbs_deb_cmd("EVENT: link lost\n");
+		lbs_mac_event_disconnected(priv, true);
+		break;
+
+	case MACREG_INT_CODE_PS_SLEEP:
+		lbs_deb_cmd("EVENT: ps sleep\n");
+
+		/* handle unexpected PS SLEEP event */
+		if (priv->psstate == PS_STATE_FULL_POWER) {
+			lbs_deb_cmd(
+			       "EVENT: in FULL POWER mode, ignoring PS_SLEEP\n");
+			break;
+		}
+		if (!list_empty(&priv->cmdpendingq)) {
+			lbs_deb_cmd("EVENT: commands in queue, do not sleep\n");
+			break;
+		}
+		priv->psstate = PS_STATE_PRE_SLEEP;
+
+		lbs_ps_confirm_sleep(priv);
+
+		break;
+
+	case MACREG_INT_CODE_HOST_AWAKE:
+		lbs_deb_cmd("EVENT: host awake\n");
+		if (priv->reset_deep_sleep_wakeup)
+			priv->reset_deep_sleep_wakeup(priv);
+		priv->is_deep_sleep = 0;
+		lbs_cmd_async(priv, CMD_802_11_WAKEUP_CONFIRM, &cmd,
+				sizeof(cmd));
+		priv->is_host_sleep_activated = 0;
+		wake_up_interruptible(&priv->host_sleep_q);
+		break;
+
+	case MACREG_INT_CODE_DEEP_SLEEP_AWAKE:
+		if (priv->reset_deep_sleep_wakeup)
+			priv->reset_deep_sleep_wakeup(priv);
+		lbs_deb_cmd("EVENT: ds awake\n");
+		priv->is_deep_sleep = 0;
+		priv->wakeup_dev_required = 0;
+		wake_up_interruptible(&priv->ds_awake_q);
+		break;
+
+	case MACREG_INT_CODE_PS_AWAKE:
+		lbs_deb_cmd("EVENT: ps awake\n");
+		/* handle unexpected PS AWAKE event */
+		if (priv->psstate == PS_STATE_FULL_POWER) {
+			lbs_deb_cmd(
+			       "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
+			break;
+		}
+
+		priv->psstate = PS_STATE_AWAKE;
+
+		if (priv->needtowakeup) {
+			/*
+			 * wait for the command processing to finish
+			 * before resuming sending
+			 * priv->needtowakeup will be set to FALSE
+			 * in lbs_ps_wakeup()
+			 */
+			lbs_deb_cmd("waking up ...\n");
+			lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, false);
+		}
+		break;
+
+	case MACREG_INT_CODE_MIC_ERR_UNICAST:
+		lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
+		lbs_send_mic_failureevent(priv, event);
+		break;
+
+	case MACREG_INT_CODE_MIC_ERR_MULTICAST:
+		lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
+		lbs_send_mic_failureevent(priv, event);
+		break;
+
+	case MACREG_INT_CODE_MIB_CHANGED:
+		lbs_deb_cmd("EVENT: MIB CHANGED\n");
+		break;
+	case MACREG_INT_CODE_INIT_DONE:
+		lbs_deb_cmd("EVENT: INIT DONE\n");
+		break;
+	case MACREG_INT_CODE_ADHOC_BCN_LOST:
+		lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
+		break;
+	case MACREG_INT_CODE_RSSI_LOW:
+		netdev_alert(priv->dev, "EVENT: rssi low\n");
+		break;
+	case MACREG_INT_CODE_SNR_LOW:
+		netdev_alert(priv->dev, "EVENT: snr low\n");
+		break;
+	case MACREG_INT_CODE_MAX_FAIL:
+		netdev_alert(priv->dev, "EVENT: max fail\n");
+		break;
+	case MACREG_INT_CODE_RSSI_HIGH:
+		netdev_alert(priv->dev, "EVENT: rssi high\n");
+		break;
+	case MACREG_INT_CODE_SNR_HIGH:
+		netdev_alert(priv->dev, "EVENT: snr high\n");
+		break;
+
+	case MACREG_INT_CODE_MESH_AUTO_STARTED:
+		/* Ignore spurious autostart events */
+		netdev_info(priv->dev, "EVENT: MESH_AUTO_STARTED (ignoring)\n");
+		break;
+
+	default:
+		netdev_alert(priv->dev, "EVENT: unknown event id %d\n", event);
+		break;
+	}
+}
diff --git a/drivers/net/wireless/marvell/libertas/debugfs.c b/drivers/net/wireless/marvell/libertas/debugfs.c
new file mode 100644
index 0000000000..c604613ab5
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/debugfs.c
@@ -0,0 +1,931 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/dcache.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/hardirq.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+
+#include "decl.h"
+#include "cmd.h"
+#include "debugfs.h"
+
+static struct dentry *lbs_dir;
+static char *szStates[] = {
+	"Connected",
+	"Disconnected"
+};
+
+#ifdef PROC_DEBUG
+static void lbs_debug_init(struct lbs_private *priv);
+#endif
+
+static ssize_t write_file_dummy(struct file *file, const char __user *buf,
+                                size_t count, loff_t *ppos)
+{
+        return -EINVAL;
+}
+
+static const size_t len = PAGE_SIZE;
+
+static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	size_t pos = 0;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	ssize_t res;
+	if (!buf)
+		return -ENOMEM;
+
+	pos += snprintf(buf+pos, len-pos, "state = %s\n",
+				szStates[priv->connect_status]);
+	pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
+				(u32) priv->regioncode);
+
+	res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+	free_page(addr);
+	return res;
+}
+
+static ssize_t lbs_sleepparams_write(struct file *file,
+				const char __user *user_buf, size_t count,
+				loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t ret;
+	struct sleep_params sp;
+	int p1, p2, p3, p4, p5, p6;
+	char *buf;
+
+	buf = memdup_user_nul(user_buf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
+	if (ret != 6) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+	sp.sp_error = p1;
+	sp.sp_offset = p2;
+	sp.sp_stabletime = p3;
+	sp.sp_calcontrol = p4;
+	sp.sp_extsleepclk = p5;
+	sp.sp_reserved = p6;
+
+	ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
+	if (!ret)
+		ret = count;
+	else if (ret > 0)
+		ret = -EINVAL;
+
+out_unlock:
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t ret;
+	size_t pos = 0;
+	struct sleep_params sp;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	if (!buf)
+		return -ENOMEM;
+
+	ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
+	if (ret)
+		goto out_unlock;
+
+	pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
+			sp.sp_offset, sp.sp_stabletime,
+			sp.sp_calcontrol, sp.sp_extsleepclk,
+			sp.sp_reserved);
+
+	ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+out_unlock:
+	free_page(addr);
+	return ret;
+}
+
+static ssize_t lbs_host_sleep_write(struct file *file,
+				const char __user *user_buf, size_t count,
+				loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t ret;
+	int host_sleep;
+	char *buf;
+
+	buf = memdup_user_nul(user_buf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	ret = sscanf(buf, "%d", &host_sleep);
+	if (ret != 1) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	if (host_sleep == 0)
+		ret = lbs_set_host_sleep(priv, 0);
+	else if (host_sleep == 1) {
+		if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
+			netdev_info(priv->dev,
+				    "wake parameters not configured\n");
+			ret = -EINVAL;
+			goto out_unlock;
+		}
+		ret = lbs_set_host_sleep(priv, 1);
+	} else {
+		netdev_err(priv->dev, "invalid option\n");
+		ret = -EINVAL;
+	}
+
+	if (!ret)
+		ret = count;
+
+out_unlock:
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t ret;
+	size_t pos = 0;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	if (!buf)
+		return -ENOMEM;
+
+	pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated);
+
+	ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+	free_page(addr);
+	return ret;
+}
+
+/*
+ * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
+ * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
+ * firmware. Here's an example:
+ *	04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
+ *	00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
+ *	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ *
+ * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
+ * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
+ * defined in mrvlietypes_thresholds
+ *
+ * This function searches in this TLV data chunk for a given TLV type
+ * and returns a pointer to the first data byte of the TLV, or to NULL
+ * if the TLV hasn't been found.
+ */
+static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
+{
+	struct mrvl_ie_header *tlv_h;
+	uint16_t length;
+	ssize_t pos = 0;
+
+	while (pos < size) {
+		tlv_h = (struct mrvl_ie_header *) tlv;
+		if (!tlv_h->len)
+			return NULL;
+		if (tlv_h->type == cpu_to_le16(tlv_type))
+			return tlv_h;
+		length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
+		pos += length;
+		tlv += length;
+	}
+	return NULL;
+}
+
+
+static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
+				  struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct cmd_ds_802_11_subscribe_event *subscribed;
+	struct mrvl_ie_thresholds *got;
+	struct lbs_private *priv = file->private_data;
+	ssize_t ret = 0;
+	size_t pos = 0;
+	char *buf;
+	u8 value;
+	u8 freq;
+	int events = 0;
+
+	buf = (char *)get_zeroed_page(GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
+	if (!subscribed) {
+		ret = -ENOMEM;
+		goto out_page;
+	}
+
+	subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
+	subscribed->action = cpu_to_le16(CMD_ACT_GET);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
+	if (ret)
+		goto out_cmd;
+
+	got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
+	if (got) {
+		value = got->value;
+		freq  = got->freq;
+		events = le16_to_cpu(subscribed->events);
+
+		pos += snprintf(buf, len, "%d %d %d\n", value, freq,
+				!!(events & event_mask));
+	}
+
+	ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+ out_cmd:
+	kfree(subscribed);
+
+ out_page:
+	free_page((unsigned long)buf);
+	return ret;
+}
+
+
+static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
+				   struct file *file,
+				   const char __user *userbuf, size_t count,
+				   loff_t *ppos)
+{
+	struct cmd_ds_802_11_subscribe_event *events;
+	struct mrvl_ie_thresholds *tlv;
+	struct lbs_private *priv = file->private_data;
+	int value, freq, new_mask;
+	uint16_t curr_mask;
+	char *buf;
+	int ret;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
+	if (ret != 3) {
+		ret = -EINVAL;
+		goto out_page;
+	}
+	events = kzalloc(sizeof(*events), GFP_KERNEL);
+	if (!events) {
+		ret = -ENOMEM;
+		goto out_page;
+	}
+
+	events->hdr.size = cpu_to_le16(sizeof(*events));
+	events->action = cpu_to_le16(CMD_ACT_GET);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+	if (ret)
+		goto out_events;
+
+	curr_mask = le16_to_cpu(events->events);
+
+	if (new_mask)
+		new_mask = curr_mask | event_mask;
+	else
+		new_mask = curr_mask & ~event_mask;
+
+	/* Now everything is set and we can send stuff down to the firmware */
+
+	tlv = (void *)events->tlv;
+
+	events->action = cpu_to_le16(CMD_ACT_SET);
+	events->events = cpu_to_le16(new_mask);
+	tlv->header.type = cpu_to_le16(tlv_type);
+	tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
+	tlv->value = value;
+	if (tlv_type != TLV_TYPE_BCNMISS)
+		tlv->freq = freq;
+
+	/* The command header, the action, the event mask, and one TLV */
+	events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+
+	if (!ret)
+		ret = count;
+ out_events:
+	kfree(events);
+ out_page:
+	kfree(buf);
+	return ret;
+}
+
+
+static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+				   file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
+			       size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+				   file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
+				   size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+				   file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+				   file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+				   file, userbuf, count, ppos);
+}
+
+static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+				  file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
+				 size_t count, loff_t *ppos)
+{
+	return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+				   file, userbuf, count, ppos);
+}
+
+
+static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t pos = 0;
+	int ret;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	u32 val = 0;
+
+	if (!buf)
+		return -ENOMEM;
+
+	ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val);
+	mdelay(10);
+	if (!ret) {
+		pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n",
+				priv->mac_offset, val);
+		ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+	}
+	free_page(addr);
+	return ret;
+}
+
+static ssize_t lbs_rdmac_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	priv->mac_offset = simple_strtoul(buf, NULL, 16);
+	kfree(buf);
+	return count;
+}
+
+static ssize_t lbs_wrmac_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+
+	struct lbs_private *priv = file->private_data;
+	ssize_t res;
+	u32 offset, value;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	res = sscanf(buf, "%x %x", &offset, &value);
+	if (res != 2) {
+		res = -EFAULT;
+		goto out_unlock;
+	}
+
+	res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value);
+	mdelay(10);
+
+	if (!res)
+		res = count;
+out_unlock:
+	kfree(buf);
+	return res;
+}
+
+static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t pos = 0;
+	int ret;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	u32 val;
+
+	if (!buf)
+		return -ENOMEM;
+
+	ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val);
+	mdelay(10);
+	if (!ret) {
+		pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n",
+				priv->bbp_offset, val);
+		ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+	}
+	free_page(addr);
+
+	return ret;
+}
+
+static ssize_t lbs_rdbbp_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	priv->bbp_offset = simple_strtoul(buf, NULL, 16);
+	kfree(buf);
+
+	return count;
+}
+
+static ssize_t lbs_wrbbp_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+
+	struct lbs_private *priv = file->private_data;
+	ssize_t res;
+	u32 offset, value;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	res = sscanf(buf, "%x %x", &offset, &value);
+	if (res != 2) {
+		res = -EFAULT;
+		goto out_unlock;
+	}
+
+	res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value);
+	mdelay(10);
+
+	if (!res)
+		res = count;
+out_unlock:
+	kfree(buf);
+	return res;
+}
+
+static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
+				  size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	ssize_t pos = 0;
+	int ret;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	u32 val;
+
+	if (!buf)
+		return -ENOMEM;
+
+	ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val);
+	mdelay(10);
+	if (!ret) {
+		pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n",
+				priv->rf_offset, val);
+		ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+	}
+	free_page(addr);
+
+	return ret;
+}
+
+static ssize_t lbs_rdrf_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	struct lbs_private *priv = file->private_data;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	priv->rf_offset = simple_strtoul(buf, NULL, 16);
+	kfree(buf);
+	return count;
+}
+
+static ssize_t lbs_wrrf_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+
+	struct lbs_private *priv = file->private_data;
+	ssize_t res;
+	u32 offset, value;
+	char *buf;
+
+	buf = memdup_user_nul(userbuf, min(count, len - 1));
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	res = sscanf(buf, "%x %x", &offset, &value);
+	if (res != 2) {
+		res = -EFAULT;
+		goto out_unlock;
+	}
+
+	res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value);
+	mdelay(10);
+
+	if (!res)
+		res = count;
+out_unlock:
+	kfree(buf);
+	return res;
+}
+
+#define FOPS(fread, fwrite) { \
+	.owner = THIS_MODULE, \
+	.open = simple_open, \
+	.read = (fread), \
+	.write = (fwrite), \
+	.llseek = generic_file_llseek, \
+}
+
+struct lbs_debugfs_files {
+	const char *name;
+	umode_t perm;
+	struct file_operations fops;
+};
+
+static const struct lbs_debugfs_files debugfs_files[] = {
+	{ "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
+	{ "sleepparams", 0644, FOPS(lbs_sleepparams_read,
+				lbs_sleepparams_write), },
+	{ "hostsleep", 0644, FOPS(lbs_host_sleep_read,
+				lbs_host_sleep_write), },
+};
+
+static const struct lbs_debugfs_files debugfs_events_files[] = {
+	{"low_rssi", 0644, FOPS(lbs_lowrssi_read,
+				lbs_lowrssi_write), },
+	{"low_snr", 0644, FOPS(lbs_lowsnr_read,
+				lbs_lowsnr_write), },
+	{"failure_count", 0644, FOPS(lbs_failcount_read,
+				lbs_failcount_write), },
+	{"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
+				lbs_bcnmiss_write), },
+	{"high_rssi", 0644, FOPS(lbs_highrssi_read,
+				lbs_highrssi_write), },
+	{"high_snr", 0644, FOPS(lbs_highsnr_read,
+				lbs_highsnr_write), },
+};
+
+static const struct lbs_debugfs_files debugfs_regs_files[] = {
+	{"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
+	{"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
+	{"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
+	{"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
+	{"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
+	{"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
+};
+
+void lbs_debugfs_init(void)
+{
+	if (!lbs_dir)
+		lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
+}
+
+void lbs_debugfs_remove(void)
+{
+	debugfs_remove(lbs_dir);
+}
+
+void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
+{
+	int i;
+	const struct lbs_debugfs_files *files;
+	if (!lbs_dir)
+		goto exit;
+
+	priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
+
+	for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
+		files = &debugfs_files[i];
+		priv->debugfs_files[i] = debugfs_create_file(files->name,
+							     files->perm,
+							     priv->debugfs_dir,
+							     priv,
+							     &files->fops);
+	}
+
+	priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
+
+	for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
+		files = &debugfs_events_files[i];
+		priv->debugfs_events_files[i] = debugfs_create_file(files->name,
+							     files->perm,
+							     priv->events_dir,
+							     priv,
+							     &files->fops);
+	}
+
+	priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
+
+	for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
+		files = &debugfs_regs_files[i];
+		priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
+							     files->perm,
+							     priv->regs_dir,
+							     priv,
+							     &files->fops);
+	}
+
+#ifdef PROC_DEBUG
+	lbs_debug_init(priv);
+#endif
+exit:
+	return;
+}
+
+void lbs_debugfs_remove_one(struct lbs_private *priv)
+{
+	int i;
+
+	for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
+		debugfs_remove(priv->debugfs_regs_files[i]);
+
+	debugfs_remove(priv->regs_dir);
+
+	for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
+		debugfs_remove(priv->debugfs_events_files[i]);
+
+	debugfs_remove(priv->events_dir);
+#ifdef PROC_DEBUG
+	debugfs_remove(priv->debugfs_debug);
+#endif
+	for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
+		debugfs_remove(priv->debugfs_files[i]);
+	debugfs_remove(priv->debugfs_dir);
+}
+
+
+
+/* debug entry */
+
+#ifdef PROC_DEBUG
+
+#define item_size(n)	(sizeof_field(struct lbs_private, n))
+#define item_addr(n)	(offsetof(struct lbs_private, n))
+
+
+struct debug_data {
+	char name[32];
+	u32 size;
+	size_t addr;
+};
+
+/* To debug any member of struct lbs_private, simply add one line here.
+ */
+static struct debug_data items[] = {
+	{"psmode", item_size(psmode), item_addr(psmode)},
+	{"psstate", item_size(psstate), item_addr(psstate)},
+};
+
+static int num_of_items = ARRAY_SIZE(items);
+
+/**
+ * lbs_debugfs_read - proc read function
+ *
+ * @file:	file to read
+ * @userbuf:	pointer to buffer
+ * @count:	number of bytes to read
+ * @ppos:	read data starting position
+ *
+ * returns:	amount of data read or negative error code
+ */
+static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
+			size_t count, loff_t *ppos)
+{
+	int val = 0;
+	size_t pos = 0;
+	ssize_t res;
+	char *p;
+	int i;
+	struct debug_data *d;
+	unsigned long addr = get_zeroed_page(GFP_KERNEL);
+	char *buf = (char *)addr;
+	if (!buf)
+		return -ENOMEM;
+
+	p = buf;
+
+	d = file->private_data;
+
+	for (i = 0; i < num_of_items; i++) {
+		if (d[i].size == 1)
+			val = *((u8 *) d[i].addr);
+		else if (d[i].size == 2)
+			val = *((u16 *) d[i].addr);
+		else if (d[i].size == 4)
+			val = *((u32 *) d[i].addr);
+		else if (d[i].size == 8)
+			val = *((u64 *) d[i].addr);
+
+		pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
+	}
+
+	res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
+
+	free_page(addr);
+	return res;
+}
+
+/**
+ * lbs_debugfs_write - proc write function
+ *
+ * @f:		file pointer
+ * @buf:	pointer to data buffer
+ * @cnt:	data number to write
+ * @ppos:	file position
+ *
+ * returns:	amount of data written
+ */
+static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
+			    size_t cnt, loff_t *ppos)
+{
+	int r, i;
+	char *pdata;
+	char *p;
+	char *p0;
+	char *p1;
+	char *p2;
+	struct debug_data *d = f->private_data;
+
+	if (cnt == 0)
+		return 0;
+
+	pdata = memdup_user_nul(buf, cnt);
+	if (IS_ERR(pdata))
+		return PTR_ERR(pdata);
+
+	p0 = pdata;
+	for (i = 0; i < num_of_items; i++) {
+		do {
+			p = strstr(p0, d[i].name);
+			if (p == NULL)
+				break;
+			p1 = strchr(p, '\n');
+			if (p1 == NULL)
+				break;
+			p0 = p1++;
+			p2 = strchr(p, '=');
+			if (!p2)
+				break;
+			p2++;
+			r = simple_strtoul(p2, NULL, 0);
+			if (d[i].size == 1)
+				*((u8 *) d[i].addr) = (u8) r;
+			else if (d[i].size == 2)
+				*((u16 *) d[i].addr) = (u16) r;
+			else if (d[i].size == 4)
+				*((u32 *) d[i].addr) = (u32) r;
+			else if (d[i].size == 8)
+				*((u64 *) d[i].addr) = (u64) r;
+			break;
+		} while (1);
+	}
+	kfree(pdata);
+
+	return (ssize_t)cnt;
+}
+
+static const struct file_operations lbs_debug_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = lbs_debugfs_write,
+	.read = lbs_debugfs_read,
+	.llseek = default_llseek,
+};
+
+/**
+ * lbs_debug_init - create debug proc file
+ *
+ * @priv:	pointer to &struct lbs_private
+ *
+ * returns:	N/A
+ */
+static void lbs_debug_init(struct lbs_private *priv)
+{
+	int i;
+
+	if (!priv->debugfs_dir)
+		return;
+
+	for (i = 0; i < num_of_items; i++)
+		items[i].addr += (size_t) priv;
+
+	priv->debugfs_debug = debugfs_create_file("debug", 0644,
+						  priv->debugfs_dir, &items[0],
+						  &lbs_debug_fops);
+}
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/debugfs.h b/drivers/net/wireless/marvell/libertas/debugfs.h
new file mode 100644
index 0000000000..6efd1a66da
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/debugfs.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LBS_DEBUGFS_H_
+#define _LBS_DEBUGFS_H_
+
+void lbs_debugfs_init(void);
+void lbs_debugfs_remove(void);
+
+void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev);
+void lbs_debugfs_remove_one(struct lbs_private *priv);
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/decl.h b/drivers/net/wireless/marvell/libertas/decl.h
new file mode 100644
index 0000000000..c1e0388ef0
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/decl.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ *  This file contains declaration referring to
+ *  functions defined in other source files
+ */
+
+#ifndef _LBS_DECL_H_
+#define _LBS_DECL_H_
+
+#include <linux/netdevice.h>
+#include <linux/firmware.h>
+#include <linux/nl80211.h>
+
+/* Should be terminated by a NULL entry */
+struct lbs_fw_table {
+	int model;
+	const char *helper;
+	const char *fwname;
+};
+
+struct lbs_private;
+typedef void (*lbs_fw_cb)(struct lbs_private *priv, int ret,
+		const struct firmware *helper, const struct firmware *mainfw);
+
+struct sk_buff;
+struct net_device;
+struct cmd_ds_command;
+
+
+/* ethtool.c */
+extern const struct ethtool_ops lbs_ethtool_ops;
+
+
+/* tx.c */
+void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count);
+netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb,
+				struct net_device *dev);
+
+/* rx.c */
+int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *);
+
+
+/* main.c */
+struct lbs_private *lbs_add_card(void *card, struct device *dmdev);
+void lbs_remove_card(struct lbs_private *priv);
+int lbs_start_card(struct lbs_private *priv);
+void lbs_stop_card(struct lbs_private *priv);
+void lbs_host_to_card_done(struct lbs_private *priv);
+
+int lbs_start_iface(struct lbs_private *priv);
+int lbs_stop_iface(struct lbs_private *priv);
+int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type);
+
+int lbs_rtap_supported(struct lbs_private *priv);
+
+int lbs_set_mac_address(struct net_device *dev, void *addr);
+void lbs_set_multicast_list(struct net_device *dev);
+void lbs_update_mcast(struct lbs_private *priv);
+
+int lbs_suspend(struct lbs_private *priv);
+int lbs_resume(struct lbs_private *priv);
+
+void lbs_queue_event(struct lbs_private *priv, u32 event);
+void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx);
+
+int lbs_enter_auto_deep_sleep(struct lbs_private *priv);
+int lbs_exit_auto_deep_sleep(struct lbs_private *priv);
+
+u32 lbs_fw_index_to_data_rate(u8 index);
+u8 lbs_data_rate_to_fw_index(u32 rate);
+
+int lbs_get_firmware(struct device *dev, u32 card_model,
+			const struct lbs_fw_table *fw_table,
+			const struct firmware **helper,
+			const struct firmware **mainfw);
+int lbs_get_firmware_async(struct lbs_private *priv, struct device *device,
+			   u32 card_model, const struct lbs_fw_table *fw_table,
+			   lbs_fw_cb callback);
+void lbs_wait_for_firmware_load(struct lbs_private *priv);
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/defs.h b/drivers/net/wireless/marvell/libertas/defs.h
new file mode 100644
index 0000000000..f7e7bf56f9
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/defs.h
@@ -0,0 +1,385 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header file contains global constant/enum definitions,
+ * global variable declaration.
+ */
+#ifndef _LBS_DEFS_H_
+#define _LBS_DEFS_H_
+
+#include <linux/spinlock.h>
+
+#ifdef CONFIG_LIBERTAS_DEBUG
+#define DEBUG
+#define PROC_DEBUG
+#endif
+
+#ifndef DRV_NAME
+#define DRV_NAME "libertas"
+#endif
+
+
+#define LBS_DEB_ENTER	0x00000001
+#define LBS_DEB_LEAVE	0x00000002
+#define LBS_DEB_MAIN	0x00000004
+#define LBS_DEB_NET	0x00000008
+#define LBS_DEB_MESH	0x00000010
+#define LBS_DEB_WEXT	0x00000020
+#define LBS_DEB_IOCTL	0x00000040
+#define LBS_DEB_SCAN	0x00000080
+#define LBS_DEB_ASSOC	0x00000100
+#define LBS_DEB_JOIN	0x00000200
+#define LBS_DEB_11D	0x00000400
+#define LBS_DEB_DEBUGFS	0x00000800
+#define LBS_DEB_ETHTOOL	0x00001000
+#define LBS_DEB_HOST	0x00002000
+#define LBS_DEB_CMD	0x00004000
+#define LBS_DEB_RX	0x00008000
+#define LBS_DEB_TX	0x00010000
+#define LBS_DEB_USB	0x00020000
+#define LBS_DEB_CS	0x00040000
+#define LBS_DEB_FW	0x00080000
+#define LBS_DEB_THREAD	0x00100000
+#define LBS_DEB_HEX	0x00200000
+#define LBS_DEB_SDIO	0x00400000
+#define LBS_DEB_SYSFS	0x00800000
+#define LBS_DEB_SPI	0x01000000
+#define LBS_DEB_CFG80211 0x02000000
+
+extern unsigned int lbs_debug;
+
+#ifdef DEBUG
+#define LBS_DEB_LL(grp, grpnam, fmt, args...) \
+do { if ((lbs_debug & (grp)) == (grp)) \
+  printk(KERN_DEBUG DRV_NAME grpnam ": " fmt, ## args); } while (0)
+#else
+#define LBS_DEB_LL(grp, grpnam, fmt, args...) do {} while (0)
+#endif
+
+#define lbs_deb_main(fmt, args...)      LBS_DEB_LL(LBS_DEB_MAIN, " main", fmt, ##args)
+#define lbs_deb_net(fmt, args...)       LBS_DEB_LL(LBS_DEB_NET, " net", fmt, ##args)
+#define lbs_deb_mesh(fmt, args...)      LBS_DEB_LL(LBS_DEB_MESH, " mesh", fmt, ##args)
+#define lbs_deb_wext(fmt, args...)      LBS_DEB_LL(LBS_DEB_WEXT, " wext", fmt, ##args)
+#define lbs_deb_ioctl(fmt, args...)     LBS_DEB_LL(LBS_DEB_IOCTL, " ioctl", fmt, ##args)
+#define lbs_deb_scan(fmt, args...)      LBS_DEB_LL(LBS_DEB_SCAN, " scan", fmt, ##args)
+#define lbs_deb_assoc(fmt, args...)     LBS_DEB_LL(LBS_DEB_ASSOC, " assoc", fmt, ##args)
+#define lbs_deb_join(fmt, args...)      LBS_DEB_LL(LBS_DEB_JOIN, " join", fmt, ##args)
+#define lbs_deb_11d(fmt, args...)       LBS_DEB_LL(LBS_DEB_11D, " 11d", fmt, ##args)
+#define lbs_deb_debugfs(fmt, args...)   LBS_DEB_LL(LBS_DEB_DEBUGFS, " debugfs", fmt, ##args)
+#define lbs_deb_ethtool(fmt, args...)   LBS_DEB_LL(LBS_DEB_ETHTOOL, " ethtool", fmt, ##args)
+#define lbs_deb_host(fmt, args...)      LBS_DEB_LL(LBS_DEB_HOST, " host", fmt, ##args)
+#define lbs_deb_cmd(fmt, args...)       LBS_DEB_LL(LBS_DEB_CMD, " cmd", fmt, ##args)
+#define lbs_deb_rx(fmt, args...)        LBS_DEB_LL(LBS_DEB_RX, " rx", fmt, ##args)
+#define lbs_deb_tx(fmt, args...)        LBS_DEB_LL(LBS_DEB_TX, " tx", fmt, ##args)
+#define lbs_deb_fw(fmt, args...)        LBS_DEB_LL(LBS_DEB_FW, " fw", fmt, ##args)
+#define lbs_deb_usb(fmt, args...)       LBS_DEB_LL(LBS_DEB_USB, " usb", fmt, ##args)
+#define lbs_deb_usbd(dev, fmt, args...) LBS_DEB_LL(LBS_DEB_USB, " usbd", "%s:" fmt, dev_name(dev), ##args)
+#define lbs_deb_cs(fmt, args...)        LBS_DEB_LL(LBS_DEB_CS, " cs", fmt, ##args)
+#define lbs_deb_thread(fmt, args...)    LBS_DEB_LL(LBS_DEB_THREAD, " thread", fmt, ##args)
+#define lbs_deb_sdio(fmt, args...)      LBS_DEB_LL(LBS_DEB_SDIO, " sdio", fmt, ##args)
+#define lbs_deb_sysfs(fmt, args...)     LBS_DEB_LL(LBS_DEB_SYSFS, " sysfs", fmt, ##args)
+#define lbs_deb_spi(fmt, args...)       LBS_DEB_LL(LBS_DEB_SPI, " spi", fmt, ##args)
+#define lbs_deb_cfg80211(fmt, args...)  LBS_DEB_LL(LBS_DEB_CFG80211, " cfg80211", fmt, ##args)
+
+#ifdef DEBUG
+static inline void lbs_deb_hex(unsigned int grp, const char *prompt,
+			       const u8 *buf, int len)
+{
+	int i = 0;
+
+	if (len &&
+	    (lbs_debug & LBS_DEB_HEX) &&
+	    (lbs_debug & grp))
+	{
+		for (i = 1; i <= len; i++) {
+			if ((i & 0xf) == 1) {
+				if (i != 1)
+					printk("\n");
+				printk(DRV_NAME " %s: ", prompt);
+			}
+			printk("%02x ", (u8) * buf);
+			buf++;
+		}
+		printk("\n");
+	}
+}
+#else
+#define lbs_deb_hex(grp,prompt,buf,len)	do {} while (0)
+#endif
+
+
+
+/* Buffer Constants */
+
+/*	The size of SQ memory PPA, DPA are 8 DWORDs, that keep the physical
+ *	addresses of TxPD buffers. Station has only 8 TxPD available, Whereas
+ *	driver has more local TxPDs. Each TxPD on the host memory is associated
+ *	with a Tx control node. The driver maintains 8 RxPD descriptors for
+ *	station firmware to store Rx packet information.
+ *
+ *	Current version of MAC has a 32x6 multicast address buffer.
+ *
+ *	802.11b can have up to  14 channels, the driver keeps the
+ *	BSSID(MAC address) of each APs or Ad hoc stations it has sensed.
+ */
+
+#define MRVDRV_MAX_MULTICAST_LIST_SIZE	32
+#define LBS_NUM_CMD_BUFFERS             10
+#define LBS_CMD_BUFFER_SIZE             (2 * 1024)
+#define MRVDRV_MAX_CHANNEL_SIZE		14
+#define MRVDRV_ASSOCIATION_TIME_OUT	255
+#define MRVDRV_SNAP_HEADER_LEN          8
+
+#define	LBS_UPLD_SIZE			2312
+#define DEV_NAME_LEN			32
+
+/* Wake criteria for HOST_SLEEP_CFG command */
+#define EHS_WAKE_ON_BROADCAST_DATA	0x0001
+#define EHS_WAKE_ON_UNICAST_DATA	0x0002
+#define EHS_WAKE_ON_MAC_EVENT		0x0004
+#define EHS_WAKE_ON_MULTICAST_DATA	0x0008
+#define EHS_REMOVE_WAKEUP		0xFFFFFFFF
+/* Wake rules for Host_Sleep_CFG command */
+#define WOL_RULE_NET_TYPE_INFRA_OR_IBSS	0x00
+#define WOL_RULE_NET_TYPE_MESH		0x10
+#define WOL_RULE_ADDR_TYPE_BCAST	0x01
+#define WOL_RULE_ADDR_TYPE_MCAST	0x08
+#define WOL_RULE_ADDR_TYPE_UCAST	0x02
+#define WOL_RULE_OP_AND			0x01
+#define WOL_RULE_OP_OR			0x02
+#define WOL_RULE_OP_INVALID		0xFF
+#define WOL_RESULT_VALID_CMD		0
+#define WOL_RESULT_NOSPC_ERR		1
+#define WOL_RESULT_EEXIST_ERR		2
+
+/* Misc constants */
+/* This section defines 802.11 specific contants */
+
+#define MRVDRV_MAX_BSS_DESCRIPTS		16
+#define MRVDRV_MAX_REGION_CODE			6
+
+#define MRVDRV_DEFAULT_LISTEN_INTERVAL		10
+
+#define	MRVDRV_CHANNELS_PER_SCAN		4
+#define	MRVDRV_MAX_CHANNELS_PER_SCAN		14
+
+#define MRVDRV_MIN_BEACON_INTERVAL		20
+#define MRVDRV_MAX_BEACON_INTERVAL		1000
+#define MRVDRV_BEACON_INTERVAL			100
+
+#define MARVELL_MESH_IE_LENGTH		9
+
+/*
+ * Values used to populate the struct mrvl_mesh_ie.  The only time you need this
+ * is when enabling the mesh using CMD_MESH_CONFIG.
+ */
+#define MARVELL_MESH_IE_TYPE		4
+#define MARVELL_MESH_IE_SUBTYPE		0
+#define MARVELL_MESH_IE_VERSION		0
+#define MARVELL_MESH_PROTO_ID_HWMP	0
+#define MARVELL_MESH_METRIC_ID		0
+#define MARVELL_MESH_CAPABILITY		0
+
+/* INT status Bit Definition */
+#define MRVDRV_TX_DNLD_RDY		0x0001
+#define MRVDRV_RX_UPLD_RDY		0x0002
+#define MRVDRV_CMD_DNLD_RDY		0x0004
+#define MRVDRV_CMD_UPLD_RDY		0x0008
+#define MRVDRV_CARDEVENT		0x0010
+
+/* Automatic TX control default levels */
+#define POW_ADAPT_DEFAULT_P0 13
+#define POW_ADAPT_DEFAULT_P1 15
+#define POW_ADAPT_DEFAULT_P2 18
+#define TPC_DEFAULT_P0 5
+#define TPC_DEFAULT_P1 10
+#define TPC_DEFAULT_P2 13
+
+/* TxPD status */
+
+/*
+ *	Station firmware use TxPD status field to report final Tx transmit
+ *	result, Bit masks are used to present combined situations.
+ */
+
+#define MRVDRV_TxPD_POWER_MGMT_NULL_PACKET 0x01
+#define MRVDRV_TxPD_POWER_MGMT_LAST_PACKET 0x08
+
+/* Tx mesh flag */
+/*
+ * Currently we are using normal WDS flag as mesh flag.
+ * TODO: change to proper mesh flag when MAC understands it.
+ */
+#define TxPD_CONTROL_WDS_FRAME (1<<17)
+#define TxPD_MESH_FRAME TxPD_CONTROL_WDS_FRAME
+
+/* Mesh interface ID */
+#define MESH_IFACE_ID					0x0001
+/* Mesh id should be in bits 14-13-12 */
+#define MESH_IFACE_BIT_OFFSET				0x000c
+/* Mesh enable bit in FW capability */
+#define MESH_CAPINFO_ENABLE_MASK			(1<<16)
+
+/* FW definition from Marvell v4 */
+#define MRVL_FW_V4					(0x04)
+/* FW definition from Marvell v5 */
+#define MRVL_FW_V5					(0x05)
+/* FW definition from Marvell v10 */
+#define MRVL_FW_V10					(0x0a)
+/* FW major revision definition */
+#define MRVL_FW_MAJOR_REV(x)				((x)>>24)
+
+/* RxPD status */
+
+#define MRVDRV_RXPD_STATUS_OK                0x0001
+
+/* RxPD status - Received packet types */
+/* Rx mesh flag */
+/*
+ * Currently we are using normal WDS flag as mesh flag.
+ * TODO: change to proper mesh flag when MAC understands it.
+ */
+#define RxPD_CONTROL_WDS_FRAME (0x40)
+#define RxPD_MESH_FRAME RxPD_CONTROL_WDS_FRAME
+
+/* RSSI-related defines */
+/*
+ *	RSSI constants are used to implement 802.11 RSSI threshold
+ *	indication. if the Rx packet signal got too weak for 5 consecutive
+ *	times, miniport driver (driver) will report this event to wrapper
+ */
+
+#define MRVDRV_NF_DEFAULT_SCAN_VALUE		(-96)
+
+/* RTS/FRAG related defines */
+#define MRVDRV_RTS_MIN_VALUE		0
+#define MRVDRV_RTS_MAX_VALUE		2347
+#define MRVDRV_FRAG_MIN_VALUE		256
+#define MRVDRV_FRAG_MAX_VALUE		2346
+
+/* This is for firmware specific length */
+#define EXTRA_LEN	36
+
+#define MRVDRV_ETH_TX_PACKET_BUFFER_SIZE \
+	(ETH_FRAME_LEN + sizeof(struct txpd) + EXTRA_LEN)
+
+#define MRVDRV_ETH_RX_PACKET_BUFFER_SIZE \
+	(ETH_FRAME_LEN + sizeof(struct rxpd) \
+	 + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN)
+
+#define	CMD_F_HOSTCMD		(1 << 0)
+#define FW_CAPINFO_WPA  	(1 << 0)
+#define FW_CAPINFO_PS  		(1 << 1)
+#define FW_CAPINFO_FIRMWARE_UPGRADE	(1 << 13)
+#define FW_CAPINFO_BOOT2_UPGRADE	(1<<14)
+#define FW_CAPINFO_PERSISTENT_CONFIG	(1<<15)
+
+#define KEY_LEN_WPA_AES			16
+#define KEY_LEN_WPA_TKIP		32
+#define KEY_LEN_WEP_104			13
+#define KEY_LEN_WEP_40			5
+
+#define RF_ANTENNA_1		0x1
+#define RF_ANTENNA_2		0x2
+#define RF_ANTENNA_AUTO		0xFFFF
+
+#define	BAND_B			(0x01)
+#define	BAND_G			(0x02)
+#define ALL_802_11_BANDS	(BAND_B | BAND_G)
+
+#define MAX_RATES			14
+
+#define	MAX_LEDS			8
+
+/* Global Variable Declaration */
+extern const char lbs_driver_version[];
+extern u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE];
+
+
+/* ENUM definition */
+/* SNRNF_TYPE */
+enum SNRNF_TYPE {
+	TYPE_BEACON = 0,
+	TYPE_RXPD,
+	MAX_TYPE_B
+};
+
+/* SNRNF_DATA */
+enum SNRNF_DATA {
+	TYPE_NOAVG = 0,
+	TYPE_AVG,
+	MAX_TYPE_AVG
+};
+
+/* LBS_802_11_POWER_MODE */
+enum LBS_802_11_POWER_MODE {
+	LBS802_11POWERMODECAM,
+	LBS802_11POWERMODEMAX_PSP,
+	LBS802_11POWERMODEFAST_PSP,
+	/* not a real mode, defined as an upper bound */
+	LBS802_11POWEMODEMAX
+};
+
+/* PS_STATE */
+enum PS_STATE {
+	PS_STATE_FULL_POWER,
+	PS_STATE_AWAKE,
+	PS_STATE_PRE_SLEEP,
+	PS_STATE_SLEEP
+};
+
+/* DNLD_STATE */
+enum DNLD_STATE {
+	DNLD_RES_RECEIVED,
+	DNLD_DATA_SENT,
+	DNLD_CMD_SENT,
+	DNLD_BOOTCMD_SENT,
+};
+
+/* LBS_MEDIA_STATE */
+enum LBS_MEDIA_STATE {
+	LBS_CONNECTED,
+	LBS_DISCONNECTED
+};
+
+/* LBS_802_11_PRIVACY_FILTER */
+enum LBS_802_11_PRIVACY_FILTER {
+	LBS802_11PRIVFILTERACCEPTALL,
+	LBS802_11PRIVFILTER8021XWEP
+};
+
+/* mv_ms_type */
+enum mv_ms_type {
+	MVMS_DAT = 0,
+	MVMS_CMD = 1,
+	MVMS_TXDONE = 2,
+	MVMS_EVENT
+};
+
+/* KEY_TYPE_ID */
+enum KEY_TYPE_ID {
+	KEY_TYPE_ID_WEP = 0,
+	KEY_TYPE_ID_TKIP,
+	KEY_TYPE_ID_AES
+};
+
+/* KEY_INFO_WPA (applies to both TKIP and AES/CCMP) */
+enum KEY_INFO_WPA {
+	KEY_INFO_WPA_MCAST = 0x01,
+	KEY_INFO_WPA_UNICAST = 0x02,
+	KEY_INFO_WPA_ENABLED = 0x04
+};
+
+/* Default values for fwt commands. */
+#define FWT_DEFAULT_METRIC 0
+#define FWT_DEFAULT_DIR 1
+/* Default Rate, 11Mbps */
+#define FWT_DEFAULT_RATE 3
+#define FWT_DEFAULT_SSN 0xffffffff
+#define FWT_DEFAULT_DSN 0
+#define FWT_DEFAULT_HOPCOUNT 0
+#define FWT_DEFAULT_TTL 0
+#define FWT_DEFAULT_EXPIRATION 0
+#define FWT_DEFAULT_SLEEPMODE 0
+#define FWT_DEFAULT_SNR 0
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/dev.h b/drivers/net/wireless/marvell/libertas/dev.h
new file mode 100644
index 0000000000..4b6e05a8e5
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/dev.h
@@ -0,0 +1,212 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file contains definitions and data structures specific
+ * to Marvell 802.11 NIC. It contains the Device Information
+ * structure struct lbs_private..
+ */
+#ifndef _LBS_DEV_H_
+#define _LBS_DEV_H_
+
+#include "defs.h"
+#include "decl.h"
+#include "host.h"
+
+#include <linux/kfifo.h>
+
+/* sleep_params */
+struct sleep_params {
+	uint16_t sp_error;
+	uint16_t sp_offset;
+	uint16_t sp_stabletime;
+	uint8_t  sp_calcontrol;
+	uint8_t  sp_extsleepclk;
+	uint16_t sp_reserved;
+};
+
+/* Mesh statistics */
+struct lbs_mesh_stats {
+	u32	fwd_bcast_cnt;		/* Fwd: Broadcast counter */
+	u32	fwd_unicast_cnt;	/* Fwd: Unicast counter */
+	u32	fwd_drop_ttl;		/* Fwd: TTL zero */
+	u32	fwd_drop_rbt;		/* Fwd: Recently Broadcasted */
+	u32	fwd_drop_noroute; 	/* Fwd: No route to Destination */
+	u32	fwd_drop_nobuf;		/* Fwd: Run out of internal buffers */
+	u32	drop_blind;		/* Rx:  Dropped by blinding table */
+	u32	tx_failed_cnt;		/* Tx:  Failed transmissions */
+};
+
+/* Private structure for the MV device */
+struct lbs_private {
+
+	/* Basic networking */
+	struct net_device *dev;
+	u32 connect_status;
+	struct work_struct mcast_work;
+	u32 nr_of_multicastmacaddr;
+	u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
+
+	/* CFG80211 */
+	struct wireless_dev *wdev;
+	bool wiphy_registered;
+	struct cfg80211_scan_request *scan_req;
+	u8 assoc_bss[ETH_ALEN];
+	u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
+	u8 disassoc_reason;
+
+	/* Mesh */
+	struct net_device *mesh_dev; /* Virtual device */
+#ifdef CONFIG_LIBERTAS_MESH
+	struct lbs_mesh_stats mstats;
+	uint16_t mesh_tlv;
+	u8 mesh_channel;
+#endif
+
+	/* Debugfs */
+	struct dentry *debugfs_dir;
+	struct dentry *debugfs_debug;
+	struct dentry *debugfs_files[6];
+	struct dentry *events_dir;
+	struct dentry *debugfs_events_files[6];
+	struct dentry *regs_dir;
+	struct dentry *debugfs_regs_files[6];
+
+	/* Hardware debugging */
+	u32 mac_offset;
+	u32 bbp_offset;
+	u32 rf_offset;
+
+	/* Power management */
+	u16 psmode;
+	u32 psstate;
+	u8 needtowakeup;
+
+	/* Deep sleep */
+	int is_deep_sleep;
+	int deep_sleep_required;
+	int is_auto_deep_sleep_enabled;
+	int wakeup_dev_required;
+	int is_activity_detected;
+	int auto_deep_sleep_timeout; /* in ms */
+	wait_queue_head_t ds_awake_q;
+	struct timer_list auto_deepsleep_timer;
+
+	/* Host sleep*/
+	int is_host_sleep_configured;
+	int is_host_sleep_activated;
+	wait_queue_head_t host_sleep_q;
+
+	/* Hardware access */
+	void *card;
+	bool iface_running;
+	u8 is_polling; /* host has to poll the card irq */
+	u8 fw_ready;
+	u8 surpriseremoved;
+	u8 setup_fw_on_resume;
+	u8 power_up_on_resume;
+	int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
+	void (*reset_card) (struct lbs_private *priv);
+	int (*power_save) (struct lbs_private *priv);
+	int (*power_restore) (struct lbs_private *priv);
+	int (*enter_deep_sleep) (struct lbs_private *priv);
+	int (*exit_deep_sleep) (struct lbs_private *priv);
+	int (*reset_deep_sleep_wakeup) (struct lbs_private *priv);
+
+	/* Adapter info (from EEPROM) */
+	u32 fwrelease;
+	u32 fwcapinfo;
+	u16 regioncode;
+	u8 current_addr[ETH_ALEN];
+	u8 copied_hwaddr;
+
+	/* Command download */
+	u8 dnld_sent;
+	/* bit0 1/0=data_sent/data_tx_done,
+	   bit1 1/0=cmd_sent/cmd_tx_done,
+	   all other bits reserved 0 */
+	u16 seqnum;
+	struct cmd_ctrl_node *cmd_array;
+	struct cmd_ctrl_node *cur_cmd;
+	struct list_head cmdfreeq;    /* free command buffers */
+	struct list_head cmdpendingq; /* pending command buffers */
+	struct timer_list command_timer;
+	int cmd_timed_out;
+
+	/* Command responses sent from the hardware to the driver */
+	u8 resp_idx;
+	u8 resp_buf[2][LBS_UPLD_SIZE];
+	u32 resp_len[2];
+
+	/* Events sent from hardware to driver */
+	struct kfifo event_fifo;
+
+	/* thread to service interrupts */
+	struct task_struct *main_thread;
+	wait_queue_head_t waitq;
+	struct workqueue_struct *work_thread;
+
+	/* Encryption stuff */
+	u8 authtype_auto;
+	u8 wep_tx_key;
+	u8 wep_key[4][WLAN_KEY_LEN_WEP104];
+	u8 wep_key_len[4];
+
+	/* Wake On LAN */
+	uint32_t wol_criteria;
+	uint8_t wol_gpio;
+	uint8_t wol_gap;
+	bool ehs_remove_supported;
+
+	/* Transmitting */
+	int tx_pending_len;		/* -1 while building packet */
+	u8 tx_pending_buf[LBS_UPLD_SIZE];
+	/* protected by hard_start_xmit serialization */
+	u8 txretrycount;
+	struct sk_buff *currenttxskb;
+	struct timer_list tx_lockup_timer;
+
+	/* Locks */
+	struct mutex lock;
+	spinlock_t driver_lock;
+
+	/* NIC/link operation characteristics */
+	u16 mac_control;
+	u8 radio_on;
+	u8 cur_rate;
+	u8 channel;
+	s16 txpower_cur;
+	s16 txpower_min;
+	s16 txpower_max;
+
+	/* Scanning */
+	struct delayed_work scan_work;
+	int scan_channel;
+	/* Queue of things waiting for scan completion */
+	wait_queue_head_t scan_q;
+	/* Whether the scan was initiated internally and not by cfg80211 */
+	bool internal_scan;
+
+	/* Firmware load */
+	u32 fw_model;
+	wait_queue_head_t fw_waitq;
+	struct device *fw_device;
+	const struct firmware *helper_fw;
+	const struct lbs_fw_table *fw_table;
+	const struct lbs_fw_table *fw_iter;
+	lbs_fw_cb fw_callback;
+};
+
+extern struct cmd_confirm_sleep confirm_sleep;
+
+/* Check if there is an interface active. */
+static inline int lbs_iface_active(struct lbs_private *priv)
+{
+	int r;
+
+	r = netif_running(priv->dev);
+	if (priv->mesh_dev)
+		r |= netif_running(priv->mesh_dev);
+
+	return r;
+}
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/ethtool.c b/drivers/net/wireless/marvell/libertas/ethtool.c
new file mode 100644
index 0000000000..9f53308a99
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/ethtool.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/hardirq.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/delay.h>
+
+#include "decl.h"
+#include "cmd.h"
+#include "mesh.h"
+
+
+static void lbs_ethtool_get_drvinfo(struct net_device *dev,
+					 struct ethtool_drvinfo *info)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	snprintf(info->fw_version, sizeof(info->fw_version),
+		"%u.%u.%u.p%u",
+		priv->fwrelease >> 24 & 0xff,
+		priv->fwrelease >> 16 & 0xff,
+		priv->fwrelease >>  8 & 0xff,
+		priv->fwrelease       & 0xff);
+	strscpy(info->driver, "libertas", sizeof(info->driver));
+	strscpy(info->version, lbs_driver_version, sizeof(info->version));
+}
+
+/*
+ * All 8388 parts have 16KiB EEPROM size at the time of writing.
+ * In case that changes this needs fixing.
+ */
+#define LBS_EEPROM_LEN 16384
+
+static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
+{
+	return LBS_EEPROM_LEN;
+}
+
+static int lbs_ethtool_get_eeprom(struct net_device *dev,
+                                  struct ethtool_eeprom *eeprom, u8 * bytes)
+{
+	struct lbs_private *priv = dev->ml_priv;
+	struct cmd_ds_802_11_eeprom_access cmd;
+	int ret;
+
+	if (eeprom->offset + eeprom->len > LBS_EEPROM_LEN ||
+	    eeprom->len > LBS_EEPROM_READ_LEN)
+		return -EINVAL;
+
+	cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) -
+		LBS_EEPROM_READ_LEN + eeprom->len);
+	cmd.action = cpu_to_le16(CMD_ACT_GET);
+	cmd.offset = cpu_to_le16(eeprom->offset);
+	cmd.len    = cpu_to_le16(eeprom->len);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_EEPROM_ACCESS, &cmd);
+	if (!ret)
+		memcpy(bytes, cmd.value, eeprom->len);
+
+	return ret;
+}
+
+static void lbs_ethtool_get_wol(struct net_device *dev,
+				struct ethtool_wolinfo *wol)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
+
+	if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
+		return;
+
+	if (priv->wol_criteria & EHS_WAKE_ON_UNICAST_DATA)
+		wol->wolopts |= WAKE_UCAST;
+	if (priv->wol_criteria & EHS_WAKE_ON_MULTICAST_DATA)
+		wol->wolopts |= WAKE_MCAST;
+	if (priv->wol_criteria & EHS_WAKE_ON_BROADCAST_DATA)
+		wol->wolopts |= WAKE_BCAST;
+	if (priv->wol_criteria & EHS_WAKE_ON_MAC_EVENT)
+		wol->wolopts |= WAKE_PHY;
+}
+
+static int lbs_ethtool_set_wol(struct net_device *dev,
+			       struct ethtool_wolinfo *wol)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
+		return -EOPNOTSUPP;
+
+	priv->wol_criteria = 0;
+	if (wol->wolopts & WAKE_UCAST)
+		priv->wol_criteria |= EHS_WAKE_ON_UNICAST_DATA;
+	if (wol->wolopts & WAKE_MCAST)
+		priv->wol_criteria |= EHS_WAKE_ON_MULTICAST_DATA;
+	if (wol->wolopts & WAKE_BCAST)
+		priv->wol_criteria |= EHS_WAKE_ON_BROADCAST_DATA;
+	if (wol->wolopts & WAKE_PHY)
+		priv->wol_criteria |= EHS_WAKE_ON_MAC_EVENT;
+	if (wol->wolopts == 0)
+		priv->wol_criteria |= EHS_REMOVE_WAKEUP;
+	return 0;
+}
+
+const struct ethtool_ops lbs_ethtool_ops = {
+	.get_drvinfo = lbs_ethtool_get_drvinfo,
+	.get_eeprom =  lbs_ethtool_get_eeprom,
+	.get_eeprom_len = lbs_ethtool_get_eeprom_len,
+#ifdef CONFIG_LIBERTAS_MESH
+	.get_sset_count = lbs_mesh_ethtool_get_sset_count,
+	.get_ethtool_stats = lbs_mesh_ethtool_get_stats,
+	.get_strings = lbs_mesh_ethtool_get_strings,
+#endif
+	.get_wol = lbs_ethtool_get_wol,
+	.set_wol = lbs_ethtool_set_wol,
+};
+
diff --git a/drivers/net/wireless/marvell/libertas/firmware.c b/drivers/net/wireless/marvell/libertas/firmware.c
new file mode 100644
index 0000000000..f124110944
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/firmware.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Firmware loading and handling functions.
+ */
+
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+
+#include "dev.h"
+#include "decl.h"
+
+static void load_next_firmware_from_table(struct lbs_private *private);
+
+static void lbs_fw_loaded(struct lbs_private *priv, int ret,
+	const struct firmware *helper, const struct firmware *mainfw)
+{
+	unsigned long flags;
+
+	lbs_deb_fw("firmware load complete, code %d\n", ret);
+
+	/* User must free helper/mainfw */
+	priv->fw_callback(priv, ret, helper, mainfw);
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->fw_callback = NULL;
+	wake_up(&priv->fw_waitq);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+static void do_load_firmware(struct lbs_private *priv, const char *name,
+	void (*cb)(const struct firmware *fw, void *context))
+{
+	int ret;
+
+	lbs_deb_fw("Requesting %s\n", name);
+	ret = request_firmware_nowait(THIS_MODULE, true, name,
+			priv->fw_device, GFP_KERNEL, priv, cb);
+	if (ret) {
+		lbs_deb_fw("request_firmware_nowait error %d\n", ret);
+		lbs_fw_loaded(priv, ret, NULL, NULL);
+	}
+}
+
+static void main_firmware_cb(const struct firmware *firmware, void *context)
+{
+	struct lbs_private *priv = context;
+
+	if (!firmware) {
+		/* Failed to find firmware: try next table entry */
+		load_next_firmware_from_table(priv);
+		return;
+	}
+
+	/* Firmware found! */
+	lbs_fw_loaded(priv, 0, priv->helper_fw, firmware);
+	if (priv->helper_fw) {
+		release_firmware (priv->helper_fw);
+		priv->helper_fw = NULL;
+	}
+	release_firmware (firmware);
+}
+
+static void helper_firmware_cb(const struct firmware *firmware, void *context)
+{
+	struct lbs_private *priv = context;
+
+	if (!firmware) {
+		/* Failed to find firmware: try next table entry */
+		load_next_firmware_from_table(priv);
+		return;
+	}
+
+	/* Firmware found! */
+	if (priv->fw_iter->fwname) {
+		priv->helper_fw = firmware;
+		do_load_firmware(priv, priv->fw_iter->fwname, main_firmware_cb);
+	} else {
+		/* No main firmware needed for this helper --> success! */
+		lbs_fw_loaded(priv, 0, firmware, NULL);
+	}
+}
+
+static void load_next_firmware_from_table(struct lbs_private *priv)
+{
+	const struct lbs_fw_table *iter;
+
+	if (!priv->fw_iter)
+		iter = priv->fw_table;
+	else
+		iter = ++priv->fw_iter;
+
+	if (priv->helper_fw) {
+		release_firmware(priv->helper_fw);
+		priv->helper_fw = NULL;
+	}
+
+next:
+	if (!iter->helper) {
+		/* End of table hit. */
+		lbs_fw_loaded(priv, -ENOENT, NULL, NULL);
+		return;
+	}
+
+	if (iter->model != priv->fw_model) {
+		iter++;
+		goto next;
+	}
+
+	priv->fw_iter = iter;
+	do_load_firmware(priv, iter->helper, helper_firmware_cb);
+}
+
+void lbs_wait_for_firmware_load(struct lbs_private *priv)
+{
+	wait_event(priv->fw_waitq, priv->fw_callback == NULL);
+}
+
+/**
+ *  lbs_get_firmware_async - Retrieves firmware asynchronously. Can load
+ *  either a helper firmware and a main firmware (2-stage), or just the helper.
+ *
+ *  @priv:      Pointer to lbs_private instance
+ *  @device:   	A pointer to &device structure
+ *  @card_model: Bus-specific card model ID used to filter firmware table
+ *		elements
+ *  @fw_table:	Table of firmware file names and device model numbers
+ *		terminated by an entry with a NULL helper name
+ *  @callback:	User callback to invoke when firmware load succeeds or fails.
+ */
+int lbs_get_firmware_async(struct lbs_private *priv, struct device *device,
+			    u32 card_model, const struct lbs_fw_table *fw_table,
+			    lbs_fw_cb callback)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	if (priv->fw_callback) {
+		lbs_deb_fw("firmware load already in progress\n");
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+		return -EBUSY;
+	}
+
+	priv->fw_device = device;
+	priv->fw_callback = callback;
+	priv->fw_table = fw_table;
+	priv->fw_iter = NULL;
+	priv->fw_model = card_model;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	lbs_deb_fw("Starting async firmware load\n");
+	load_next_firmware_from_table(priv);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lbs_get_firmware_async);
+
+/**
+ *  lbs_get_firmware - Retrieves two-stage firmware
+ *
+ *  @dev:     	A pointer to &device structure
+ *  @card_model: Bus-specific card model ID used to filter firmware table
+ *		elements
+ *  @fw_table:	Table of firmware file names and device model numbers
+ *		terminated by an entry with a NULL helper name
+ *  @helper:	On success, the helper firmware; caller must free
+ *  @mainfw:	On success, the main firmware; caller must free
+ *
+ * Deprecated: use lbs_get_firmware_async() instead.
+ *
+ *  returns:		0 on success, non-zero on failure
+ */
+int lbs_get_firmware(struct device *dev, u32 card_model,
+			const struct lbs_fw_table *fw_table,
+			const struct firmware **helper,
+			const struct firmware **mainfw)
+{
+	const struct lbs_fw_table *iter;
+	int ret;
+
+	BUG_ON(helper == NULL);
+	BUG_ON(mainfw == NULL);
+
+	/* Search for firmware to use from the table. */
+	iter = fw_table;
+	while (iter && iter->helper) {
+		if (iter->model != card_model)
+			goto next;
+
+		if (*helper == NULL) {
+			ret = request_firmware(helper, iter->helper, dev);
+			if (ret)
+				goto next;
+
+			/* If the device has one-stage firmware (ie cf8305) and
+			 * we've got it then we don't need to bother with the
+			 * main firmware.
+			 */
+			if (iter->fwname == NULL)
+				return 0;
+		}
+
+		if (*mainfw == NULL) {
+			ret = request_firmware(mainfw, iter->fwname, dev);
+			if (ret) {
+				/* Clear the helper to ensure we don't have
+				 * mismatched firmware pairs.
+				 */
+				release_firmware(*helper);
+				*helper = NULL;
+			}
+		}
+
+		if (*helper && *mainfw)
+			return 0;
+
+  next:
+		iter++;
+	}
+
+	/* Failed */
+	release_firmware(*helper);
+	*helper = NULL;
+	release_firmware(*mainfw);
+	*mainfw = NULL;
+
+	return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(lbs_get_firmware);
diff --git a/drivers/net/wireless/marvell/libertas/host.h b/drivers/net/wireless/marvell/libertas/host.h
new file mode 100644
index 0000000000..a202b716ad
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/host.h
@@ -0,0 +1,983 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file function prototypes, data structure
+ * and  definitions for all the host/station commands
+ */
+
+#ifndef _LBS_HOST_H_
+#define _LBS_HOST_H_
+
+#include "types.h"
+#include "defs.h"
+
+#define DEFAULT_AD_HOC_CHANNEL                  6
+
+#define CMD_OPTION_WAITFORRSP                   0x0002
+
+/* Host command IDs */
+
+/*
+ * Return command are almost always the same as the host command, but with
+ * bit 15 set high.  There are a few exceptions, though...
+ */
+#define CMD_RET(cmd)                            (0x8000 | cmd)
+
+/* Return command convention exceptions: */
+#define CMD_RET_802_11_ASSOCIATE                0x8012
+
+/* Command codes */
+#define CMD_GET_HW_SPEC                         0x0003
+#define CMD_EEPROM_UPDATE                       0x0004
+#define CMD_802_11_RESET                        0x0005
+#define CMD_802_11_SCAN                         0x0006
+#define CMD_802_11_GET_LOG                      0x000b
+#define CMD_MAC_MULTICAST_ADR                   0x0010
+#define CMD_802_11_AUTHENTICATE                 0x0011
+#define CMD_802_11_EEPROM_ACCESS                0x0059
+#define CMD_802_11_ASSOCIATE                    0x0050
+#define CMD_802_11_SET_WEP                      0x0013
+#define CMD_802_11_GET_STAT                     0x0014
+#define CMD_802_3_GET_STAT                      0x0015
+#define CMD_802_11_SNMP_MIB                     0x0016
+#define CMD_MAC_REG_MAP                         0x0017
+#define CMD_BBP_REG_MAP                         0x0018
+#define CMD_MAC_REG_ACCESS                      0x0019
+#define CMD_BBP_REG_ACCESS                      0x001a
+#define CMD_RF_REG_ACCESS                       0x001b
+#define CMD_802_11_RADIO_CONTROL                0x001c
+#define CMD_802_11_RF_CHANNEL                   0x001d
+#define CMD_802_11_RF_TX_POWER                  0x001e
+#define CMD_802_11_RSSI                         0x001f
+#define CMD_802_11_RF_ANTENNA                   0x0020
+#define CMD_802_11_PS_MODE                      0x0021
+#define CMD_802_11_DATA_RATE                    0x0022
+#define CMD_RF_REG_MAP                          0x0023
+#define CMD_802_11_DEAUTHENTICATE               0x0024
+#define CMD_802_11_REASSOCIATE                  0x0025
+#define CMD_MAC_CONTROL                         0x0028
+#define CMD_802_11_AD_HOC_START                 0x002b
+#define CMD_802_11_AD_HOC_JOIN                  0x002c
+#define CMD_802_11_QUERY_TKIP_REPLY_CNTRS       0x002e
+#define CMD_802_11_ENABLE_RSN                   0x002f
+#define CMD_802_11_SET_AFC                      0x003c
+#define CMD_802_11_GET_AFC                      0x003d
+#define CMD_802_11_DEEP_SLEEP                   0x003e
+#define CMD_802_11_AD_HOC_STOP                  0x0040
+#define CMD_802_11_HOST_SLEEP_CFG               0x0043
+#define CMD_802_11_WAKEUP_CONFIRM               0x0044
+#define CMD_802_11_HOST_SLEEP_ACTIVATE          0x0045
+#define CMD_802_11_BEACON_STOP                  0x0049
+#define CMD_802_11_MAC_ADDRESS                  0x004d
+#define CMD_802_11_LED_GPIO_CTRL                0x004e
+#define CMD_802_11_BAND_CONFIG                  0x0058
+#define CMD_GSPI_BUS_CONFIG                     0x005a
+#define CMD_802_11D_DOMAIN_INFO                 0x005b
+#define CMD_802_11_KEY_MATERIAL                 0x005e
+#define CMD_802_11_SLEEP_PARAMS                 0x0066
+#define CMD_802_11_INACTIVITY_TIMEOUT           0x0067
+#define CMD_802_11_SLEEP_PERIOD                 0x0068
+#define CMD_802_11_TPC_CFG                      0x0072
+#define CMD_802_11_PA_CFG                       0x0073
+#define CMD_802_11_FW_WAKE_METHOD               0x0074
+#define CMD_802_11_SUBSCRIBE_EVENT              0x0075
+#define CMD_802_11_RATE_ADAPT_RATESET           0x0076
+#define CMD_802_11_TX_RATE_QUERY                0x007f
+#define CMD_GET_TSF                             0x0080
+#define CMD_BT_ACCESS                           0x0087
+#define CMD_FWT_ACCESS                          0x0095
+#define CMD_802_11_MONITOR_MODE                 0x0098
+#define CMD_MESH_ACCESS                         0x009b
+#define CMD_MESH_CONFIG_OLD                     0x00a3
+#define CMD_MESH_CONFIG                         0x00ac
+#define CMD_SET_BOOT2_VER                       0x00a5
+#define CMD_FUNC_INIT                           0x00a9
+#define CMD_FUNC_SHUTDOWN                       0x00aa
+#define CMD_802_11_BEACON_CTRL                  0x00b0
+
+/* For the IEEE Power Save */
+#define PS_MODE_ACTION_ENTER_PS                 0x0030
+#define PS_MODE_ACTION_EXIT_PS                  0x0031
+#define PS_MODE_ACTION_SLEEP_CONFIRMED          0x0034
+
+#define CMD_ENABLE_RSN                          0x0001
+#define CMD_DISABLE_RSN                         0x0000
+
+#define CMD_ACT_GET                             0x0000
+#define CMD_ACT_SET                             0x0001
+
+/* Define action or option for CMD_802_11_SET_WEP */
+#define CMD_ACT_ADD                             0x0002
+#define CMD_ACT_REMOVE                          0x0004
+
+#define CMD_TYPE_WEP_40_BIT                     0x01
+#define CMD_TYPE_WEP_104_BIT                    0x02
+
+#define CMD_NUM_OF_WEP_KEYS                     4
+
+#define CMD_WEP_KEY_INDEX_MASK                  0x3fff
+
+/* Define action or option for CMD_802_11_SCAN */
+#define CMD_BSS_TYPE_BSS                        0x0001
+#define CMD_BSS_TYPE_IBSS                       0x0002
+#define CMD_BSS_TYPE_ANY                        0x0003
+
+/* Define action or option for CMD_802_11_SCAN */
+#define CMD_SCAN_TYPE_ACTIVE                    0x0000
+#define CMD_SCAN_TYPE_PASSIVE                   0x0001
+
+#define CMD_SCAN_RADIO_TYPE_BG                  0
+
+#define CMD_SCAN_PROBE_DELAY_TIME               0
+
+/* Define action or option for CMD_MAC_CONTROL */
+#define CMD_ACT_MAC_RX_ON                       0x0001
+#define CMD_ACT_MAC_TX_ON                       0x0002
+#define CMD_ACT_MAC_LOOPBACK_ON                 0x0004
+#define CMD_ACT_MAC_WEP_ENABLE                  0x0008
+#define CMD_ACT_MAC_INT_ENABLE                  0x0010
+#define CMD_ACT_MAC_MULTICAST_ENABLE            0x0020
+#define CMD_ACT_MAC_BROADCAST_ENABLE            0x0040
+#define CMD_ACT_MAC_PROMISCUOUS_ENABLE          0x0080
+#define CMD_ACT_MAC_ALL_MULTICAST_ENABLE        0x0100
+#define CMD_ACT_MAC_STRICT_PROTECTION_ENABLE    0x0400
+
+/* Event flags for CMD_802_11_SUBSCRIBE_EVENT */
+#define CMD_SUBSCRIBE_RSSI_LOW                  0x0001
+#define CMD_SUBSCRIBE_SNR_LOW                   0x0002
+#define CMD_SUBSCRIBE_FAILCOUNT                 0x0004
+#define CMD_SUBSCRIBE_BCNMISS                   0x0008
+#define CMD_SUBSCRIBE_RSSI_HIGH                 0x0010
+#define CMD_SUBSCRIBE_SNR_HIGH                  0x0020
+
+#define RADIO_PREAMBLE_LONG                     0x00
+#define RADIO_PREAMBLE_SHORT                    0x02
+#define RADIO_PREAMBLE_AUTO                     0x04
+
+/* Define action or option for CMD_802_11_RF_CHANNEL */
+#define CMD_OPT_802_11_RF_CHANNEL_GET           0x00
+#define CMD_OPT_802_11_RF_CHANNEL_SET           0x01
+
+/* Define action or option for CMD_802_11_DATA_RATE */
+#define CMD_ACT_SET_TX_AUTO                     0x0000
+#define CMD_ACT_SET_TX_FIX_RATE                 0x0001
+#define CMD_ACT_GET_TX_RATE                     0x0002
+
+/* Options for CMD_802_11_FW_WAKE_METHOD */
+#define CMD_WAKE_METHOD_UNCHANGED               0x0000
+#define CMD_WAKE_METHOD_COMMAND_INT             0x0001
+#define CMD_WAKE_METHOD_GPIO                    0x0002
+
+/* Object IDs for CMD_802_11_SNMP_MIB */
+#define SNMP_MIB_OID_BSS_TYPE                   0x0000
+#define SNMP_MIB_OID_OP_RATE_SET                0x0001
+#define SNMP_MIB_OID_BEACON_PERIOD              0x0002  /* Reserved on v9+ */
+#define SNMP_MIB_OID_DTIM_PERIOD                0x0003  /* Reserved on v9+ */
+#define SNMP_MIB_OID_ASSOC_TIMEOUT              0x0004  /* Reserved on v9+ */
+#define SNMP_MIB_OID_RTS_THRESHOLD              0x0005
+#define SNMP_MIB_OID_SHORT_RETRY_LIMIT          0x0006
+#define SNMP_MIB_OID_LONG_RETRY_LIMIT           0x0007
+#define SNMP_MIB_OID_FRAG_THRESHOLD             0x0008
+#define SNMP_MIB_OID_11D_ENABLE                 0x0009
+#define SNMP_MIB_OID_11H_ENABLE                 0x000A
+
+/* Define action or option for CMD_BT_ACCESS */
+enum cmd_bt_access_opts {
+	/* The bt commands start at 5 instead of 1 because the old dft commands
+	 * are mapped to 1-4.  These old commands are no longer maintained and
+	 * should not be called.
+	 */
+	CMD_ACT_BT_ACCESS_ADD = 5,
+	CMD_ACT_BT_ACCESS_DEL,
+	CMD_ACT_BT_ACCESS_LIST,
+	CMD_ACT_BT_ACCESS_RESET,
+	CMD_ACT_BT_ACCESS_SET_INVERT,
+	CMD_ACT_BT_ACCESS_GET_INVERT
+};
+
+/* Define action or option for CMD_FWT_ACCESS */
+enum cmd_fwt_access_opts {
+	CMD_ACT_FWT_ACCESS_ADD = 1,
+	CMD_ACT_FWT_ACCESS_DEL,
+	CMD_ACT_FWT_ACCESS_LOOKUP,
+	CMD_ACT_FWT_ACCESS_LIST,
+	CMD_ACT_FWT_ACCESS_LIST_ROUTE,
+	CMD_ACT_FWT_ACCESS_LIST_NEIGHBOR,
+	CMD_ACT_FWT_ACCESS_RESET,
+	CMD_ACT_FWT_ACCESS_CLEANUP,
+	CMD_ACT_FWT_ACCESS_TIME,
+};
+
+/* Define action or option for CMD_802_11_HOST_SLEEP_CFG */
+enum cmd_wol_cfg_opts {
+	CMD_ACT_ACTION_NONE = 0,
+	CMD_ACT_SET_WOL_RULE,
+	CMD_ACT_GET_WOL_RULE,
+	CMD_ACT_RESET_WOL_RULE,
+};
+
+/* Define action or option for CMD_MESH_ACCESS */
+enum cmd_mesh_access_opts {
+	CMD_ACT_MESH_GET_TTL = 1,
+	CMD_ACT_MESH_SET_TTL,
+	CMD_ACT_MESH_GET_STATS,
+	CMD_ACT_MESH_GET_ANYCAST,
+	CMD_ACT_MESH_SET_ANYCAST,
+	CMD_ACT_MESH_SET_LINK_COSTS,
+	CMD_ACT_MESH_GET_LINK_COSTS,
+	CMD_ACT_MESH_SET_BCAST_RATE,
+	CMD_ACT_MESH_GET_BCAST_RATE,
+	CMD_ACT_MESH_SET_RREQ_DELAY,
+	CMD_ACT_MESH_GET_RREQ_DELAY,
+	CMD_ACT_MESH_SET_ROUTE_EXP,
+	CMD_ACT_MESH_GET_ROUTE_EXP,
+	CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
+	CMD_ACT_MESH_GET_AUTOSTART_ENABLED,
+	CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT = 17,
+};
+
+/* Define actions and types for CMD_MESH_CONFIG */
+enum cmd_mesh_config_actions {
+	CMD_ACT_MESH_CONFIG_STOP = 0,
+	CMD_ACT_MESH_CONFIG_START,
+	CMD_ACT_MESH_CONFIG_SET,
+	CMD_ACT_MESH_CONFIG_GET,
+};
+
+enum cmd_mesh_config_types {
+	CMD_TYPE_MESH_SET_BOOTFLAG = 1,
+	CMD_TYPE_MESH_SET_BOOTTIME,
+	CMD_TYPE_MESH_SET_DEF_CHANNEL,
+	CMD_TYPE_MESH_SET_MESH_IE,
+	CMD_TYPE_MESH_GET_DEFAULTS,
+	CMD_TYPE_MESH_GET_MESH_IE, /* GET_DEFAULTS is superset of GET_MESHIE */
+};
+
+/* Card Event definition */
+#define MACREG_INT_CODE_TX_PPA_FREE		0
+#define MACREG_INT_CODE_TX_DMA_DONE		1
+#define MACREG_INT_CODE_LINK_LOST_W_SCAN	2
+#define MACREG_INT_CODE_LINK_LOST_NO_SCAN	3
+#define MACREG_INT_CODE_LINK_SENSED		4
+#define MACREG_INT_CODE_CMD_FINISHED		5
+#define MACREG_INT_CODE_MIB_CHANGED		6
+#define MACREG_INT_CODE_INIT_DONE		7
+#define MACREG_INT_CODE_DEAUTHENTICATED		8
+#define MACREG_INT_CODE_DISASSOCIATED		9
+#define MACREG_INT_CODE_PS_AWAKE		10
+#define MACREG_INT_CODE_PS_SLEEP		11
+#define MACREG_INT_CODE_MIC_ERR_MULTICAST	13
+#define MACREG_INT_CODE_MIC_ERR_UNICAST		14
+#define MACREG_INT_CODE_WM_AWAKE		15
+#define MACREG_INT_CODE_DEEP_SLEEP_AWAKE	16
+#define MACREG_INT_CODE_ADHOC_BCN_LOST		17
+#define MACREG_INT_CODE_HOST_AWAKE		18
+#define MACREG_INT_CODE_STOP_TX			19
+#define MACREG_INT_CODE_START_TX		20
+#define MACREG_INT_CODE_CHANNEL_SWITCH		21
+#define MACREG_INT_CODE_MEASUREMENT_RDY		22
+#define MACREG_INT_CODE_WMM_CHANGE		23
+#define MACREG_INT_CODE_BG_SCAN_REPORT		24
+#define MACREG_INT_CODE_RSSI_LOW		25
+#define MACREG_INT_CODE_SNR_LOW			26
+#define MACREG_INT_CODE_MAX_FAIL		27
+#define MACREG_INT_CODE_RSSI_HIGH		28
+#define MACREG_INT_CODE_SNR_HIGH		29
+#define MACREG_INT_CODE_MESH_AUTO_STARTED	35
+#define MACREG_INT_CODE_FIRMWARE_READY		48
+
+
+/* 802.11-related definitions */
+
+/* TxPD descriptor */
+struct txpd {
+	/* union to cope up with later FW revisions */
+	union {
+		/* Current Tx packet status */
+		__le32 tx_status;
+		struct {
+			/* BSS type: client, AP, etc. */
+			u8 bss_type;
+			/* BSS number */
+			u8 bss_num;
+			/* Reserved */
+			__le16 reserved;
+		} bss;
+	} u;
+	/* Tx control */
+	__le32 tx_control;
+	__le32 tx_packet_location;
+	/* Tx packet length */
+	__le16 tx_packet_length;
+	struct_group_attr(tx_dest_addr, __packed,
+		/* First 2 byte of destination MAC address */
+		u8 tx_dest_addr_high[2];
+		/* Last 4 byte of destination MAC address */
+		u8 tx_dest_addr_low[4];
+	);
+	/* Pkt Priority */
+	u8 priority;
+	/* Pkt Trasnit Power control */
+	u8 powermgmt;
+	/* Amount of time the packet has been queued (units = 2ms) */
+	u8 pktdelay_2ms;
+	/* reserved */
+	u8 reserved1;
+} __packed;
+
+/* RxPD Descriptor */
+struct rxpd {
+	/* union to cope up with later FW revisions */
+	union {
+		/* Current Rx packet status */
+		__le16 status;
+		struct {
+			/* BSS type: client, AP, etc. */
+			u8 bss_type;
+			/* BSS number */
+			u8 bss_num;
+		} __packed bss;
+	} __packed u;
+
+	/* SNR */
+	u8 snr;
+
+	/* Tx control */
+	u8 rx_control;
+
+	/* Pkt length */
+	__le16 pkt_len;
+
+	/* Noise Floor */
+	u8 nf;
+
+	/* Rx Packet Rate */
+	u8 rx_rate;
+
+	/* Pkt addr */
+	__le32 pkt_ptr;
+
+	/* Next Rx RxPD addr */
+	__le32 next_rxpd_ptr;
+
+	/* Pkt Priority */
+	u8 priority;
+	u8 reserved[3];
+} __packed;
+
+struct cmd_header {
+	__le16 command;
+	__le16 size;
+	__le16 seqnum;
+	__le16 result;
+} __packed;
+
+/* Generic structure to hold all key types. */
+struct enc_key {
+	u16 len;
+	u16 flags;  /* KEY_INFO_* from defs.h */
+	u16 type; /* KEY_TYPE_* from defs.h */
+	u8 key[32];
+};
+
+/* lbs_offset_value */
+struct lbs_offset_value {
+	u32 offset;
+	u32 value;
+} __packed;
+
+#define MAX_11D_TRIPLETS	83
+
+struct mrvl_ie_domain_param_set {
+	struct mrvl_ie_header header;
+
+	u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
+	struct ieee80211_country_ie_triplet triplet[MAX_11D_TRIPLETS];
+} __packed;
+
+struct cmd_ds_802_11d_domain_info {
+	struct cmd_header hdr;
+
+	__le16 action;
+	struct mrvl_ie_domain_param_set domain;
+} __packed;
+
+/*
+ * Define data structure for CMD_GET_HW_SPEC
+ * This structure defines the response for the GET_HW_SPEC command
+ */
+struct cmd_ds_get_hw_spec {
+	struct cmd_header hdr;
+
+	/* HW Interface version number */
+	__le16 hwifversion;
+	/* HW version number */
+	__le16 version;
+	/* Max number of TxPD FW can handle */
+	__le16 nr_txpd;
+	/* Max no of Multicast address */
+	__le16 nr_mcast_adr;
+	/* MAC address */
+	u8 permanentaddr[6];
+
+	/* region Code */
+	__le16 regioncode;
+
+	/* Number of antenna used */
+	__le16 nr_antenna;
+
+	/* FW release number, example 0x01030304 = 2.3.4p1 */
+	__le32 fwrelease;
+
+	/* Base Address of TxPD queue */
+	__le32 wcb_base;
+	/* Read Pointer of RxPd queue */
+	__le32 rxpd_rdptr;
+
+	/* Write Pointer of RxPd queue */
+	__le32 rxpd_wrptr;
+
+	/*FW/HW capability */
+	__le32 fwcapinfo;
+} __packed;
+
+struct cmd_ds_802_11_subscribe_event {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 events;
+
+	/* A TLV to the CMD_802_11_SUBSCRIBE_EVENT command can contain a
+	 * number of TLVs. From the v5.1 manual, those TLVs would add up to
+	 * 40 bytes. However, future firmware might add additional TLVs, so I
+	 * bump this up a bit.
+	 */
+	uint8_t tlv[128];
+} __packed;
+
+/*
+ * This scan handle Country Information IE(802.11d compliant)
+ * Define data structure for CMD_802_11_SCAN
+ */
+struct cmd_ds_802_11_scan {
+	struct cmd_header hdr;
+
+	uint8_t bsstype;
+	uint8_t bssid[ETH_ALEN];
+	uint8_t tlvbuffer[];
+} __packed;
+
+struct cmd_ds_802_11_scan_rsp {
+	struct cmd_header hdr;
+
+	__le16 bssdescriptsize;
+	uint8_t nr_sets;
+	uint8_t bssdesc_and_tlvbuffer[];
+} __packed;
+
+struct cmd_ds_802_11_get_log {
+	struct cmd_header hdr;
+
+	__le32 mcasttxframe;
+	__le32 failed;
+	__le32 retry;
+	__le32 multiretry;
+	__le32 framedup;
+	__le32 rtssuccess;
+	__le32 rtsfailure;
+	__le32 ackfailure;
+	__le32 rxfrag;
+	__le32 mcastrxframe;
+	__le32 fcserror;
+	__le32 txframe;
+	__le32 wepundecryptable;
+} __packed;
+
+struct cmd_ds_mac_control {
+	struct cmd_header hdr;
+	__le16 action;
+	u16 reserved;
+} __packed;
+
+struct cmd_ds_mac_multicast_adr {
+	struct cmd_header hdr;
+	__le16 action;
+	__le16 nr_of_adrs;
+	u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE];
+} __packed;
+
+struct cmd_ds_802_11_authenticate {
+	struct cmd_header hdr;
+
+	u8 bssid[ETH_ALEN];
+	u8 authtype;
+	u8 reserved[10];
+} __packed;
+
+struct cmd_ds_802_11_deauthenticate {
+	struct cmd_header hdr;
+
+	u8 macaddr[ETH_ALEN];
+	__le16 reasoncode;
+} __packed;
+
+struct cmd_ds_802_11_associate {
+	struct cmd_header hdr;
+
+	u8 bssid[6];
+	__le16 capability;
+	__le16 listeninterval;
+	__le16 bcnperiod;
+	u8 dtimperiod;
+	/* 512 permitted - enough for required and most optional IEs */
+	u8 iebuf[];
+} __packed;
+
+struct cmd_ds_802_11_associate_response {
+	struct cmd_header hdr;
+
+	__le16 capability;
+	__le16 statuscode;
+	__le16 aid;
+	/* max 512 */
+	u8 iebuf[];
+} __packed;
+
+struct cmd_ds_802_11_set_wep {
+	struct cmd_header hdr;
+
+	/* ACT_ADD, ACT_REMOVE or ACT_ENABLE */
+	__le16 action;
+
+	/* key Index selected for Tx */
+	__le16 keyindex;
+
+	/* 40, 128bit or TXWEP */
+	uint8_t keytype[4];
+	uint8_t keymaterial[4][16];
+} __packed;
+
+struct cmd_ds_802_11_snmp_mib {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 oid;
+	__le16 bufsize;
+	u8 value[128];
+} __packed;
+
+struct cmd_ds_reg_access {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 offset;
+	union {
+		u8 bbp_rf;  /* for BBP and RF registers */
+		__le32 mac; /* for MAC registers */
+	} value;
+} __packed;
+
+struct cmd_ds_802_11_radio_control {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 control;
+} __packed;
+
+struct cmd_ds_802_11_beacon_control {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 beacon_enable;
+	__le16 beacon_period;
+} __packed;
+
+struct cmd_ds_802_11_sleep_params {
+	struct cmd_header hdr;
+
+	/* ACT_GET/ACT_SET */
+	__le16 action;
+
+	/* Sleep clock error in ppm */
+	__le16 error;
+
+	/* Wakeup offset in usec */
+	__le16 offset;
+
+	/* Clock stabilization time in usec */
+	__le16 stabletime;
+
+	/* control periodic calibration */
+	uint8_t calcontrol;
+
+	/* control the use of external sleep clock */
+	uint8_t externalsleepclk;
+
+	/* reserved field, should be set to zero */
+	__le16 reserved;
+} __packed;
+
+struct cmd_ds_802_11_rf_channel {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 channel;
+	__le16 rftype;      /* unused */
+	__le16 reserved;    /* unused */
+	u8 channellist[32]; /* unused */
+} __packed;
+
+struct cmd_ds_802_11_rssi {
+	struct cmd_header hdr;
+
+	/*
+	 * request:  number of beacons (N) to average the SNR and NF over
+	 * response: SNR of most recent beacon
+	 */
+	__le16 n_or_snr;
+
+	/*
+	 * The following fields are only set in the response.
+	 * In the request these are reserved and should be set to 0.
+	 */
+	__le16 nf;       /* most recent beacon noise floor */
+	__le16 avg_snr;  /* average SNR weighted by N from request */
+	__le16 avg_nf;   /* average noise floor weighted by N from request */
+} __packed;
+
+struct cmd_ds_802_11_mac_address {
+	struct cmd_header hdr;
+
+	__le16 action;
+	u8 macadd[ETH_ALEN];
+} __packed;
+
+struct cmd_ds_802_11_rf_tx_power {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 curlevel;
+	s8 maxlevel;
+	s8 minlevel;
+} __packed;
+
+/* MONITOR_MODE only exists in OLPC v5 firmware */
+struct cmd_ds_802_11_monitor_mode {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 mode;
+} __packed;
+
+struct cmd_ds_set_boot2_ver {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 version;
+} __packed;
+
+struct cmd_ds_802_11_fw_wake_method {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 method;
+} __packed;
+
+struct cmd_ds_802_11_ps_mode {
+	struct cmd_header hdr;
+
+	__le16 action;
+
+	/*
+	 * Interval for keepalive in PS mode:
+	 * 0x0000 = don't change
+	 * 0x001E = firmware default
+	 * 0xFFFF = disable
+	 */
+	__le16 nullpktinterval;
+
+	/*
+	 * Number of DTIM intervals to wake up for:
+	 * 0 = don't change
+	 * 1 = firmware default
+	 * 5 = max
+	 */
+	__le16 multipledtim;
+
+	__le16 reserved;
+	__le16 locallisteninterval;
+
+	/*
+	 * AdHoc awake period (FW v9+ only):
+	 * 0 = don't change
+	 * 1 = always awake (IEEE standard behavior)
+	 * 2 - 31 = sleep for (n - 1) periods and awake for 1 period
+	 * 32 - 254 = invalid
+	 * 255 = sleep at each ATIM
+	 */
+	__le16 adhoc_awake_period;
+} __packed;
+
+struct cmd_confirm_sleep {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 nullpktinterval;
+	__le16 multipledtim;
+	__le16 reserved;
+	__le16 locallisteninterval;
+} __packed;
+
+struct cmd_ds_802_11_data_rate {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 reserved;
+	u8 rates[MAX_RATES];
+} __packed;
+
+struct cmd_ds_802_11_rate_adapt_rateset {
+	struct cmd_header hdr;
+	__le16 action;
+	__le16 enablehwauto;
+	__le16 bitmap;
+} __packed;
+
+struct cmd_ds_802_11_ad_hoc_start {
+	struct cmd_header hdr;
+
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 bsstype;
+	__le16 beaconperiod;
+	u8 dtimperiod;   /* Reserved on v9 and later */
+	struct ieee_ie_ibss_param_set ibss;
+	u8 reserved1[4];
+	struct ieee_ie_ds_param_set ds;
+	u8 reserved2[4];
+	__le16 probedelay;  /* Reserved on v9 and later */
+	__le16 capability;
+	u8 rates[MAX_RATES];
+	u8 tlv_memory_size_pad[100];
+} __packed;
+
+struct cmd_ds_802_11_ad_hoc_result {
+	struct cmd_header hdr;
+
+	u8 pad[3];
+	u8 bssid[ETH_ALEN];
+} __packed;
+
+struct adhoc_bssdesc {
+	u8 bssid[ETH_ALEN];
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 type;
+	__le16 beaconperiod;
+	u8 dtimperiod;
+	__le64 timestamp;
+	__le64 localtime;
+	struct ieee_ie_ds_param_set ds;
+	u8 reserved1[4];
+	struct ieee_ie_ibss_param_set ibss;
+	u8 reserved2[4];
+	__le16 capability;
+	u8 rates[MAX_RATES];
+
+	/*
+	 * DO NOT ADD ANY FIELDS TO THIS STRUCTURE. It is used below in the
+	 * Adhoc join command and will cause a binary layout mismatch with
+	 * the firmware
+	 */
+} __packed;
+
+struct cmd_ds_802_11_ad_hoc_join {
+	struct cmd_header hdr;
+
+	struct adhoc_bssdesc bss;
+	__le16 failtimeout;   /* Reserved on v9 and later */
+	__le16 probedelay;    /* Reserved on v9 and later */
+} __packed;
+
+struct cmd_ds_802_11_ad_hoc_stop {
+	struct cmd_header hdr;
+} __packed;
+
+struct cmd_ds_802_11_enable_rsn {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 enable;
+} __packed;
+
+struct MrvlIEtype_keyParamSet {
+	/* type ID */
+	__le16 type;
+
+	/* length of Payload */
+	__le16 length;
+
+	/* type of key: WEP=0, TKIP=1, AES=2 */
+	__le16 keytypeid;
+
+	/* key control Info specific to a keytypeid */
+	__le16 keyinfo;
+
+	/* length of key */
+	__le16 keylen;
+
+	/* key material of size keylen */
+	u8 key[32];
+} __packed;
+
+#define MAX_WOL_RULES 		16
+
+struct host_wol_rule {
+	uint8_t rule_no;
+	uint8_t rule_ops;
+	__le16 sig_offset;
+	__le16 sig_length;
+	__le16 reserve;
+	__be32 sig_mask;
+	__be32 signature;
+} __packed;
+
+struct wol_config {
+	uint8_t action;
+	uint8_t pattern;
+	uint8_t no_rules_in_cmd;
+	uint8_t result;
+	struct host_wol_rule rule[MAX_WOL_RULES];
+} __packed;
+
+struct cmd_ds_host_sleep {
+	struct cmd_header hdr;
+	__le32 criteria;
+	uint8_t gpio;
+	uint16_t gap;
+	struct wol_config wol_conf;
+} __packed;
+
+
+
+struct cmd_ds_802_11_key_material {
+	struct cmd_header hdr;
+
+	__le16 action;
+	struct MrvlIEtype_keyParamSet keyParamSet[2];
+} __packed;
+
+struct cmd_ds_802_11_eeprom_access {
+	struct cmd_header hdr;
+	__le16 action;
+	__le16 offset;
+	__le16 len;
+	/* firmware says it returns a maximum of 20 bytes */
+#define LBS_EEPROM_READ_LEN 20
+	u8 value[LBS_EEPROM_READ_LEN];
+} __packed;
+
+struct cmd_ds_802_11_tpc_cfg {
+	struct cmd_header hdr;
+
+	__le16 action;
+	uint8_t enable;
+	int8_t P0;
+	int8_t P1;
+	int8_t P2;
+	uint8_t usesnr;
+} __packed;
+
+
+struct cmd_ds_802_11_pa_cfg {
+	struct cmd_header hdr;
+
+	__le16 action;
+	uint8_t enable;
+	int8_t P0;
+	int8_t P1;
+	int8_t P2;
+} __packed;
+
+
+struct cmd_ds_802_11_led_ctrl {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 numled;
+	u8 data[256];
+} __packed;
+
+/* Automatic Frequency Control */
+struct cmd_ds_802_11_afc {
+	struct cmd_header hdr;
+
+	__le16 afc_auto;
+	union {
+		struct {
+			__le16 threshold;
+			__le16 period;
+		};
+		struct {
+			__le16 timing_offset; /* signed */
+			__le16 carrier_offset; /* signed */
+		};
+	};
+} __packed;
+
+struct cmd_tx_rate_query {
+	__le16 txrate;
+} __packed;
+
+struct cmd_ds_get_tsf {
+	__le64 tsfvalue;
+} __packed;
+
+struct cmd_ds_bt_access {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le32 id;
+	u8 addr1[ETH_ALEN];
+	u8 addr2[ETH_ALEN];
+} __packed;
+
+struct cmd_ds_fwt_access {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le32 id;
+	u8 valid;
+	u8 da[ETH_ALEN];
+	u8 dir;
+	u8 ra[ETH_ALEN];
+	__le32 ssn;
+	__le32 dsn;
+	__le32 metric;
+	u8 rate;
+	u8 hopcount;
+	u8 ttl;
+	__le32 expiration;
+	u8 sleepmode;
+	__le32 snr;
+	__le32 references;
+	u8 prec[ETH_ALEN];
+} __packed;
+
+struct cmd_ds_mesh_config {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le16 channel;
+	__le16 type;
+	__le16 length;
+	u8 data[128];	/* last position reserved */
+} __packed;
+
+struct cmd_ds_mesh_access {
+	struct cmd_header hdr;
+
+	__le16 action;
+	__le32 data[32];	/* last position reserved */
+} __packed;
+
+/* Number of stats counters returned by the firmware */
+#define MESH_STATS_NUM 8
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/if_cs.c b/drivers/net/wireless/marvell/libertas/if_cs.c
new file mode 100644
index 0000000000..4103f15bca
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_cs.c
@@ -0,0 +1,957 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+
+  Driver for the Marvell 8385 based compact flash WLAN cards.
+
+  (C) 2007 by Holger Schurig <hs4233@mail.mn-solutions.de>
+
+
+*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/moduleparam.h>
+#include <linux/firmware.h>
+#include <linux/netdevice.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+#include <linux/io.h>
+
+#define DRV_NAME "libertas_cs"
+
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+
+
+/********************************************************************/
+/* Module stuff                                                     */
+/********************************************************************/
+
+MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
+MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
+MODULE_LICENSE("GPL");
+
+
+
+/********************************************************************/
+/* Data structures                                                  */
+/********************************************************************/
+
+struct if_cs_card {
+	struct pcmcia_device *p_dev;
+	struct lbs_private *priv;
+	void __iomem *iobase;
+	bool align_regs;
+	u32 model;
+};
+
+
+enum {
+	MODEL_UNKNOWN = 0x00,
+	MODEL_8305 = 0x01,
+	MODEL_8381 = 0x02,
+	MODEL_8385 = 0x03
+};
+
+static const struct lbs_fw_table fw_table[] = {
+	{ MODEL_8305, "libertas/cf8305.bin", NULL },
+	{ MODEL_8305, "libertas_cs_helper.fw", NULL },
+	{ MODEL_8381, "libertas/cf8381_helper.bin", "libertas/cf8381.bin" },
+	{ MODEL_8381, "libertas_cs_helper.fw", "libertas_cs.fw" },
+	{ MODEL_8385, "libertas/cf8385_helper.bin", "libertas/cf8385.bin" },
+	{ MODEL_8385, "libertas_cs_helper.fw", "libertas_cs.fw" },
+	{ 0, NULL, NULL }
+};
+MODULE_FIRMWARE("libertas/cf8305.bin");
+MODULE_FIRMWARE("libertas/cf8381_helper.bin");
+MODULE_FIRMWARE("libertas/cf8381.bin");
+MODULE_FIRMWARE("libertas/cf8385_helper.bin");
+MODULE_FIRMWARE("libertas/cf8385.bin");
+MODULE_FIRMWARE("libertas_cs_helper.fw");
+MODULE_FIRMWARE("libertas_cs.fw");
+
+
+/********************************************************************/
+/* Hardware access                                                  */
+/********************************************************************/
+
+/* This define enables wrapper functions which allow you
+   to dump all register accesses. You normally won't this,
+   except for development */
+/* #define DEBUG_IO */
+
+#ifdef DEBUG_IO
+static int debug_output = 0;
+#else
+/* This way the compiler optimizes the printk's away */
+#define debug_output 0
+#endif
+
+static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg)
+{
+	unsigned int val = ioread8(card->iobase + reg);
+	if (debug_output)
+		printk(KERN_INFO "inb %08x<%02x\n", reg, val);
+	return val;
+}
+static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg)
+{
+	unsigned int val = ioread16(card->iobase + reg);
+	if (debug_output)
+		printk(KERN_INFO "inw %08x<%04x\n", reg, val);
+	return val;
+}
+static inline void if_cs_read16_rep(
+	struct if_cs_card *card,
+	uint reg,
+	void *buf,
+	unsigned long count)
+{
+	if (debug_output)
+		printk(KERN_INFO "insw %08x<(0x%lx words)\n",
+			reg, count);
+	ioread16_rep(card->iobase + reg, buf, count);
+}
+
+static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val)
+{
+	if (debug_output)
+		printk(KERN_INFO "outb %08x>%02x\n", reg, val);
+	iowrite8(val, card->iobase + reg);
+}
+
+static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val)
+{
+	if (debug_output)
+		printk(KERN_INFO "outw %08x>%04x\n", reg, val);
+	iowrite16(val, card->iobase + reg);
+}
+
+static inline void if_cs_write16_rep(
+	struct if_cs_card *card,
+	uint reg,
+	const void *buf,
+	unsigned long count)
+{
+	if (debug_output)
+		printk(KERN_INFO "outsw %08x>(0x%lx words)\n",
+			reg, count);
+	iowrite16_rep(card->iobase + reg, buf, count);
+}
+
+
+/*
+ * I know that polling/delaying is frowned upon. However, this procedure
+ * with polling is needed while downloading the firmware. At this stage,
+ * the hardware does unfortunately not create any interrupts.
+ *
+ * Fortunately, this function is never used once the firmware is in
+ * the card. :-)
+ *
+ * As a reference, see the "Firmware Specification v5.1", page 18
+ * and 19. I did not follow their suggested timing to the word,
+ * but this works nice & fast anyway.
+ */
+static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 reg)
+{
+	int i;
+
+	for (i = 0; i < 100000; i++) {
+		u8 val = if_cs_read8(card, addr);
+		if (val == reg)
+			return 0;
+		udelay(5);
+	}
+	return -ETIME;
+}
+
+
+
+/*
+ * First the bitmasks for the host/card interrupt/status registers:
+ */
+#define IF_CS_BIT_TX			0x0001
+#define IF_CS_BIT_RX			0x0002
+#define IF_CS_BIT_COMMAND		0x0004
+#define IF_CS_BIT_RESP			0x0008
+#define IF_CS_BIT_EVENT			0x0010
+#define	IF_CS_BIT_MASK			0x001f
+
+
+
+/*
+ * It's not really clear to me what the host status register is for. It
+ * needs to be set almost in union with "host int cause". The following
+ * bits from above are used:
+ *
+ *   IF_CS_BIT_TX         driver downloaded a data packet
+ *   IF_CS_BIT_RX         driver got a data packet
+ *   IF_CS_BIT_COMMAND    driver downloaded a command
+ *   IF_CS_BIT_RESP       not used (has some meaning with powerdown)
+ *   IF_CS_BIT_EVENT      driver read a host event
+ */
+#define IF_CS_HOST_STATUS		0x00000000
+
+/*
+ * With the host int cause register can the host (that is, Linux) cause
+ * an interrupt in the firmware, to tell the firmware about those events:
+ *
+ *   IF_CS_BIT_TX         a data packet has been downloaded
+ *   IF_CS_BIT_RX         a received data packet has retrieved
+ *   IF_CS_BIT_COMMAND    a firmware block or a command has been downloaded
+ *   IF_CS_BIT_RESP       not used (has some meaning with powerdown)
+ *   IF_CS_BIT_EVENT      a host event (link lost etc) has been retrieved
+ */
+#define IF_CS_HOST_INT_CAUSE		0x00000002
+
+/*
+ * The host int mask register is used to enable/disable interrupt.  However,
+ * I have the suspicion that disabled interrupts are lost.
+ */
+#define IF_CS_HOST_INT_MASK		0x00000004
+
+/*
+ * Used to send or receive data packets:
+ */
+#define IF_CS_WRITE			0x00000016
+#define IF_CS_WRITE_LEN			0x00000014
+#define IF_CS_READ			0x00000010
+#define IF_CS_READ_LEN			0x00000024
+
+/*
+ * Used to send commands (and to send firmware block) and to
+ * receive command responses:
+ */
+#define IF_CS_CMD			0x0000001A
+#define IF_CS_CMD_LEN			0x00000018
+#define IF_CS_RESP			0x00000012
+#define IF_CS_RESP_LEN			0x00000030
+
+/*
+ * The card status registers shows what the card/firmware actually
+ * accepts:
+ *
+ *   IF_CS_BIT_TX        you may send a data packet
+ *   IF_CS_BIT_RX        you may retrieve a data packet
+ *   IF_CS_BIT_COMMAND   you may send a command
+ *   IF_CS_BIT_RESP      you may retrieve a command response
+ *   IF_CS_BIT_EVENT     the card has a event for use (link lost, snr low etc)
+ *
+ * When reading this register several times, you will get back the same
+ * results --- with one exception: the IF_CS_BIT_EVENT clear itself
+ * automatically.
+ *
+ * Not that we don't rely on BIT_RX,_BIT_RESP or BIT_EVENT because
+ * we handle this via the card int cause register.
+ */
+#define IF_CS_CARD_STATUS		0x00000020
+#define IF_CS_CARD_STATUS_MASK		0x7f00
+
+/*
+ * The card int cause register is used by the card/firmware to notify us
+ * about the following events:
+ *
+ *   IF_CS_BIT_TX        a data packet has successfully been sentx
+ *   IF_CS_BIT_RX        a data packet has been received and can be retrieved
+ *   IF_CS_BIT_COMMAND   not used
+ *   IF_CS_BIT_RESP      the firmware has a command response for us
+ *   IF_CS_BIT_EVENT     the card has a event for use (link lost, snr low etc)
+ */
+#define IF_CS_CARD_INT_CAUSE		0x00000022
+
+/*
+ * This is used to for handshaking with the card's bootloader/helper image
+ * to synchronize downloading of firmware blocks.
+ */
+#define IF_CS_SQ_READ_LOW		0x00000028
+#define IF_CS_SQ_HELPER_OK		0x10
+
+/*
+ * The scratch register tells us ...
+ *
+ * IF_CS_SCRATCH_BOOT_OK     the bootloader runs
+ * IF_CS_SCRATCH_HELPER_OK   the helper firmware already runs
+ */
+#define IF_CS_SCRATCH			0x0000003F
+#define IF_CS_SCRATCH_BOOT_OK		0x00
+#define IF_CS_SCRATCH_HELPER_OK		0x5a
+
+/*
+ * Used to detect ancient chips:
+ */
+#define IF_CS_PRODUCT_ID		0x0000001C
+#define IF_CS_CF8385_B1_REV		0x12
+#define IF_CS_CF8381_B3_REV		0x04
+#define IF_CS_CF8305_B1_REV		0x03
+
+/*
+ * Used to detect other cards than CF8385 since their revisions of silicon
+ * doesn't match those from CF8385, eg. CF8381 B3 works with this driver.
+ */
+#define CF8305_MANFID		0x02db
+#define CF8305_CARDID		0x8103
+#define CF8381_MANFID		0x02db
+#define CF8381_CARDID		0x6064
+#define CF8385_MANFID		0x02df
+#define CF8385_CARDID		0x8103
+
+/*
+ * FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when
+ * that gets fixed.  Currently there's no way to access it from the probe hook.
+ */
+static inline u32 get_model(u16 manf_id, u16 card_id)
+{
+	/* NOTE: keep in sync with if_cs_ids */
+	if (manf_id == CF8305_MANFID && card_id == CF8305_CARDID)
+		return MODEL_8305;
+	else if (manf_id == CF8381_MANFID && card_id == CF8381_CARDID)
+		return MODEL_8381;
+	else if (manf_id == CF8385_MANFID && card_id == CF8385_CARDID)
+		return MODEL_8385;
+	return MODEL_UNKNOWN;
+}
+
+/********************************************************************/
+/* I/O and interrupt handling                                       */
+/********************************************************************/
+
+static inline void if_cs_enable_ints(struct if_cs_card *card)
+{
+	if_cs_write16(card, IF_CS_HOST_INT_MASK, 0);
+}
+
+static inline void if_cs_disable_ints(struct if_cs_card *card)
+{
+	if_cs_write16(card, IF_CS_HOST_INT_MASK, IF_CS_BIT_MASK);
+}
+
+/*
+ * Called from if_cs_host_to_card to send a command to the hardware
+ */
+static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb)
+{
+	struct if_cs_card *card = (struct if_cs_card *)priv->card;
+	int ret = -1;
+	int loops = 0;
+
+	if_cs_disable_ints(card);
+
+	/* Is hardware ready? */
+	while (1) {
+		u16 status = if_cs_read16(card, IF_CS_CARD_STATUS);
+		if (status & IF_CS_BIT_COMMAND)
+			break;
+		if (++loops > 100) {
+			netdev_err(priv->dev, "card not ready for commands\n");
+			goto done;
+		}
+		mdelay(1);
+	}
+
+	if_cs_write16(card, IF_CS_CMD_LEN, nb);
+
+	if_cs_write16_rep(card, IF_CS_CMD, buf, nb / 2);
+	/* Are we supposed to transfer an odd amount of bytes? */
+	if (nb & 1)
+		if_cs_write8(card, IF_CS_CMD, buf[nb-1]);
+
+	/* "Assert the download over interrupt command in the Host
+	 * status register" */
+	if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
+
+	/* "Assert the download over interrupt command in the Card
+	 * interrupt case register" */
+	if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
+	ret = 0;
+
+done:
+	if_cs_enable_ints(card);
+	return ret;
+}
+
+/*
+ * Called from if_cs_host_to_card to send a data to the hardware
+ */
+static void if_cs_send_data(struct lbs_private *priv, u8 *buf, u16 nb)
+{
+	struct if_cs_card *card = (struct if_cs_card *)priv->card;
+	u16 status;
+
+	if_cs_disable_ints(card);
+
+	status = if_cs_read16(card, IF_CS_CARD_STATUS);
+	BUG_ON((status & IF_CS_BIT_TX) == 0);
+
+	if_cs_write16(card, IF_CS_WRITE_LEN, nb);
+
+	/* write even number of bytes, then odd byte if necessary */
+	if_cs_write16_rep(card, IF_CS_WRITE, buf, nb / 2);
+	if (nb & 1)
+		if_cs_write8(card, IF_CS_WRITE, buf[nb-1]);
+
+	if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_TX);
+	if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_TX);
+	if_cs_enable_ints(card);
+}
+
+/*
+ * Get the command result out of the card.
+ */
+static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len)
+{
+	unsigned long flags;
+	int ret = -1;
+	u16 status;
+
+	/* is hardware ready? */
+	status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
+	if ((status & IF_CS_BIT_RESP) == 0) {
+		netdev_err(priv->dev, "no cmd response in card\n");
+		*len = 0;
+		goto out;
+	}
+
+	*len = if_cs_read16(priv->card, IF_CS_RESP_LEN);
+	if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) {
+		netdev_err(priv->dev,
+			   "card cmd buffer has invalid # of bytes (%d)\n",
+			   *len);
+		goto out;
+	}
+
+	/* read even number of bytes, then odd byte if necessary */
+	if_cs_read16_rep(priv->card, IF_CS_RESP, data, *len/sizeof(u16));
+	if (*len & 1)
+		data[*len-1] = if_cs_read8(priv->card, IF_CS_RESP);
+
+	/* This is a workaround for a firmware that reports too much
+	 * bytes */
+	*len -= 8;
+	ret = 0;
+
+	/* Clear this flag again */
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->dnld_sent = DNLD_RES_RECEIVED;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+	return ret;
+}
+
+static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
+{
+	struct sk_buff *skb = NULL;
+	u16 len;
+	u8 *data;
+
+	len = if_cs_read16(priv->card, IF_CS_READ_LEN);
+	if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
+		netdev_err(priv->dev,
+			   "card data buffer has invalid # of bytes (%d)\n",
+			   len);
+		priv->dev->stats.rx_dropped++;
+		goto dat_err;
+	}
+
+	skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2);
+	if (!skb)
+		goto out;
+	skb_put(skb, len);
+	skb_reserve(skb, 2);/* 16 byte align */
+	data = skb->data;
+
+	/* read even number of bytes, then odd byte if necessary */
+	if_cs_read16_rep(priv->card, IF_CS_READ, data, len/sizeof(u16));
+	if (len & 1)
+		data[len-1] = if_cs_read8(priv->card, IF_CS_READ);
+
+dat_err:
+	if_cs_write16(priv->card, IF_CS_HOST_STATUS, IF_CS_BIT_RX);
+	if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_RX);
+
+out:
+	return skb;
+}
+
+static irqreturn_t if_cs_interrupt(int irq, void *data)
+{
+	struct if_cs_card *card = data;
+	struct lbs_private *priv = card->priv;
+	u16 cause;
+
+	/* Ask card interrupt cause register if there is something for us */
+	cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE);
+	lbs_deb_cs("cause 0x%04x\n", cause);
+
+	if (cause == 0) {
+		/* Not for us */
+		return IRQ_NONE;
+	}
+
+	if (cause == 0xffff) {
+		/* Read in junk, the card has probably been removed */
+		card->priv->surpriseremoved = 1;
+		return IRQ_HANDLED;
+	}
+
+	if (cause & IF_CS_BIT_RX) {
+		struct sk_buff *skb;
+		lbs_deb_cs("rx packet\n");
+		skb = if_cs_receive_data(priv);
+		if (skb)
+			lbs_process_rxed_packet(priv, skb);
+	}
+
+	if (cause & IF_CS_BIT_TX) {
+		lbs_deb_cs("tx done\n");
+		lbs_host_to_card_done(priv);
+	}
+
+	if (cause & IF_CS_BIT_RESP) {
+		unsigned long flags;
+		u8 i;
+
+		lbs_deb_cs("cmd resp\n");
+		spin_lock_irqsave(&priv->driver_lock, flags);
+		i = (priv->resp_idx == 0) ? 1 : 0;
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+		BUG_ON(priv->resp_len[i]);
+		if_cs_receive_cmdres(priv, priv->resp_buf[i],
+			&priv->resp_len[i]);
+
+		spin_lock_irqsave(&priv->driver_lock, flags);
+		lbs_notify_command_response(priv, i);
+		spin_unlock_irqrestore(&priv->driver_lock, flags);
+	}
+
+	if (cause & IF_CS_BIT_EVENT) {
+		u16 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
+		if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE,
+			IF_CS_BIT_EVENT);
+		lbs_queue_event(priv, (status & IF_CS_CARD_STATUS_MASK) >> 8);
+	}
+
+	/* Clear interrupt cause */
+	if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK);
+
+	return IRQ_HANDLED;
+}
+
+
+
+
+/********************************************************************/
+/* Firmware                                                         */
+/********************************************************************/
+
+/*
+ * Tries to program the helper firmware.
+ *
+ * Return 0 on success
+ */
+static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw)
+{
+	int ret = 0;
+	int sent = 0;
+	u8  scratch;
+
+	/*
+	 * This is the only place where an unaligned register access happens on
+	 * the CF8305 card, therefore for the sake of speed of the driver, we do
+	 * the alignment correction here.
+	 */
+	if (card->align_regs)
+		scratch = if_cs_read16(card, IF_CS_SCRATCH) >> 8;
+	else
+		scratch = if_cs_read8(card, IF_CS_SCRATCH);
+
+	/* "If the value is 0x5a, the firmware is already
+	 * downloaded successfully"
+	 */
+	if (scratch == IF_CS_SCRATCH_HELPER_OK)
+		goto done;
+
+	/* "If the value is != 00, it is invalid value of register */
+	if (scratch != IF_CS_SCRATCH_BOOT_OK) {
+		ret = -ENODEV;
+		goto done;
+	}
+
+	lbs_deb_cs("helper size %td\n", fw->size);
+
+	/* "Set the 5 bytes of the helper image to 0" */
+	/* Not needed, this contains an ARM branch instruction */
+
+	for (;;) {
+		/* "the number of bytes to send is 256" */
+		int count = 256;
+		int remain = fw->size - sent;
+
+		if (remain < count)
+			count = remain;
+
+		/*
+		 * "write the number of bytes to be sent to the I/O Command
+		 * write length register"
+		 */
+		if_cs_write16(card, IF_CS_CMD_LEN, count);
+
+		/* "write this to I/O Command port register as 16 bit writes */
+		if (count)
+			if_cs_write16_rep(card, IF_CS_CMD,
+				&fw->data[sent],
+				count >> 1);
+
+		/*
+		 * "Assert the download over interrupt command in the Host
+		 * status register"
+		 */
+		if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
+
+		/*
+		 * "Assert the download over interrupt command in the Card
+		 * interrupt case register"
+		 */
+		if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
+
+		/*
+		 * "The host polls the Card Status register ... for 50 ms before
+		 * declaring a failure"
+		 */
+		ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
+			IF_CS_BIT_COMMAND);
+		if (ret < 0) {
+			pr_err("can't download helper at 0x%x, ret %d\n",
+			       sent, ret);
+			goto done;
+		}
+
+		if (count == 0)
+			break;
+
+		sent += count;
+	}
+
+done:
+	return ret;
+}
+
+
+static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
+{
+	int ret = 0;
+	int retry = 0;
+	int len = 0;
+	int sent;
+
+	lbs_deb_cs("fw size %td\n", fw->size);
+
+	ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW,
+		IF_CS_SQ_HELPER_OK);
+	if (ret < 0) {
+		pr_err("helper firmware doesn't answer\n");
+		goto done;
+	}
+
+	for (sent = 0; sent < fw->size; sent += len) {
+		len = if_cs_read16(card, IF_CS_SQ_READ_LOW);
+		if (len & 1) {
+			retry++;
+			pr_info("odd, need to retry this firmware block\n");
+		} else {
+			retry = 0;
+		}
+
+		if (retry > 20) {
+			pr_err("could not download firmware\n");
+			ret = -ENODEV;
+			goto done;
+		}
+		if (retry) {
+			sent -= len;
+		}
+
+
+		if_cs_write16(card, IF_CS_CMD_LEN, len);
+
+		if_cs_write16_rep(card, IF_CS_CMD,
+			&fw->data[sent],
+			(len+1) >> 1);
+		if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
+		if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
+
+		ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
+			IF_CS_BIT_COMMAND);
+		if (ret < 0) {
+			pr_err("can't download firmware at 0x%x\n", sent);
+			goto done;
+		}
+	}
+
+	ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
+	if (ret < 0)
+		pr_err("firmware download failed\n");
+
+done:
+	return ret;
+}
+
+static void if_cs_prog_firmware(struct lbs_private *priv, int ret,
+				 const struct firmware *helper,
+				 const struct firmware *mainfw)
+{
+	struct if_cs_card *card = priv->card;
+
+	if (ret) {
+		pr_err("failed to find firmware (%d)\n", ret);
+		return;
+	}
+
+	/* Load the firmware */
+	ret = if_cs_prog_helper(card, helper);
+	if (ret == 0 && (card->model != MODEL_8305))
+		ret = if_cs_prog_real(card, mainfw);
+	if (ret)
+		return;
+
+	/* Now actually get the IRQ */
+	ret = request_irq(card->p_dev->irq, if_cs_interrupt,
+		IRQF_SHARED, DRV_NAME, card);
+	if (ret) {
+		pr_err("error in request_irq\n");
+		return;
+	}
+
+	/*
+	 * Clear any interrupt cause that happened while sending
+	 * firmware/initializing card
+	 */
+	if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
+	if_cs_enable_ints(card);
+
+	/* And finally bring the card up */
+	priv->fw_ready = 1;
+	if (lbs_start_card(priv) != 0) {
+		pr_err("could not activate card\n");
+		free_irq(card->p_dev->irq, card);
+	}
+}
+
+
+/********************************************************************/
+/* Callback functions for libertas.ko                               */
+/********************************************************************/
+
+/* Send commands or data packets to the card */
+static int if_cs_host_to_card(struct lbs_private *priv,
+	u8 type,
+	u8 *buf,
+	u16 nb)
+{
+	int ret = -1;
+
+	switch (type) {
+	case MVMS_DAT:
+		priv->dnld_sent = DNLD_DATA_SENT;
+		if_cs_send_data(priv, buf, nb);
+		ret = 0;
+		break;
+	case MVMS_CMD:
+		priv->dnld_sent = DNLD_CMD_SENT;
+		ret = if_cs_send_cmd(priv, buf, nb);
+		break;
+	default:
+		netdev_err(priv->dev, "%s: unsupported type %d\n",
+			   __func__, type);
+	}
+
+	return ret;
+}
+
+
+static void if_cs_release(struct pcmcia_device *p_dev)
+{
+	struct if_cs_card *card = p_dev->priv;
+
+	free_irq(p_dev->irq, card);
+	pcmcia_disable_device(p_dev);
+	if (card->iobase)
+		ioport_unmap(card->iobase);
+}
+
+
+static int if_cs_ioprobe(struct pcmcia_device *p_dev, void *priv_data)
+{
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
+
+	if (p_dev->resource[1]->end) {
+		pr_err("wrong CIS (check number of IO windows)\n");
+		return -ENODEV;
+	}
+
+	/* This reserves IO space but doesn't actually enable it */
+	return pcmcia_request_io(p_dev);
+}
+
+static int if_cs_probe(struct pcmcia_device *p_dev)
+{
+	int ret = -ENOMEM;
+	unsigned int prod_id;
+	struct lbs_private *priv;
+	struct if_cs_card *card;
+
+	card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL);
+	if (!card)
+		goto out;
+
+	card->p_dev = p_dev;
+	p_dev->priv = card;
+
+	p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+
+	if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) {
+		pr_err("error in pcmcia_loop_config\n");
+		goto out1;
+	}
+
+	/*
+	 * Allocate an interrupt line.  Note that this does not assign
+	 * a handler to the interrupt, unless the 'Handler' member of
+	 * the irq structure is initialized.
+	 */
+	if (!p_dev->irq)
+		goto out1;
+
+	/* Initialize io access */
+	card->iobase = ioport_map(p_dev->resource[0]->start,
+				resource_size(p_dev->resource[0]));
+	if (!card->iobase) {
+		pr_err("error in ioport_map\n");
+		ret = -EIO;
+		goto out1;
+	}
+
+	ret = pcmcia_enable_device(p_dev);
+	if (ret) {
+		pr_err("error in pcmcia_enable_device\n");
+		goto out2;
+	}
+
+	/* Finally, report what we've done */
+	lbs_deb_cs("irq %d, io %pR", p_dev->irq, p_dev->resource[0]);
+
+	/*
+	 * Most of the libertas cards can do unaligned register access, but some
+	 * weird ones cannot. That's especially true for the CF8305 card.
+	 */
+	card->align_regs = false;
+
+	card->model = get_model(p_dev->manf_id, p_dev->card_id);
+	if (card->model == MODEL_UNKNOWN) {
+		pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n",
+		       p_dev->manf_id, p_dev->card_id);
+		ret = -ENODEV;
+		goto out2;
+	}
+
+	/* Check if we have a current silicon */
+	prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
+	if (card->model == MODEL_8305) {
+		card->align_regs = true;
+		if (prod_id < IF_CS_CF8305_B1_REV) {
+			pr_err("8305 rev B0 and older are not supported\n");
+			ret = -ENODEV;
+			goto out2;
+		}
+	}
+
+	if ((card->model == MODEL_8381) && prod_id < IF_CS_CF8381_B3_REV) {
+		pr_err("8381 rev B2 and older are not supported\n");
+		ret = -ENODEV;
+		goto out2;
+	}
+
+	if ((card->model == MODEL_8385) && prod_id < IF_CS_CF8385_B1_REV) {
+		pr_err("8385 rev B0 and older are not supported\n");
+		ret = -ENODEV;
+		goto out2;
+	}
+
+	/* Make this card known to the libertas driver */
+	priv = lbs_add_card(card, &p_dev->dev);
+	if (IS_ERR(priv)) {
+		ret = PTR_ERR(priv);
+		goto out2;
+	}
+
+	/* Set up fields in lbs_private */
+	card->priv = priv;
+	priv->card = card;
+	priv->hw_host_to_card = if_cs_host_to_card;
+	priv->enter_deep_sleep = NULL;
+	priv->exit_deep_sleep = NULL;
+	priv->reset_deep_sleep_wakeup = NULL;
+
+	/* Get firmware */
+	ret = lbs_get_firmware_async(priv, &p_dev->dev, card->model, fw_table,
+				     if_cs_prog_firmware);
+	if (ret) {
+		pr_err("failed to find firmware (%d)\n", ret);
+		goto out3;
+	}
+
+	goto out;
+
+out3:
+	lbs_remove_card(priv);
+out2:
+	ioport_unmap(card->iobase);
+out1:
+	pcmcia_disable_device(p_dev);
+out:
+	return ret;
+}
+
+
+static void if_cs_detach(struct pcmcia_device *p_dev)
+{
+	struct if_cs_card *card = p_dev->priv;
+
+	lbs_stop_card(card->priv);
+	lbs_remove_card(card->priv);
+	if_cs_disable_ints(card);
+	if_cs_release(p_dev);
+	kfree(card);
+}
+
+
+
+/********************************************************************/
+/* Module initialization                                            */
+/********************************************************************/
+
+static const struct pcmcia_device_id if_cs_ids[] = {
+	PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID),
+	PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID),
+	PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID),
+	/* NOTE: keep in sync with get_model() */
+	PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
+
+static struct pcmcia_driver lbs_driver = {
+	.owner		= THIS_MODULE,
+	.name		= DRV_NAME,
+	.probe		= if_cs_probe,
+	.remove		= if_cs_detach,
+	.id_table       = if_cs_ids,
+};
+module_pcmcia_driver(lbs_driver);
diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.c b/drivers/net/wireless/marvell/libertas/if_sdio.c
new file mode 100644
index 0000000000..5240346999
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_sdio.c
@@ -0,0 +1,1417 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  linux/drivers/net/wireless/libertas/if_sdio.c
+ *
+ *  Copyright 2007-2008 Pierre Ossman
+ *
+ * Inspired by if_cs.c, Copyright 2007 Holger Schurig
+ *
+ * This hardware has more or less no CMD53 support, so all registers
+ * must be accessed using sdio_readb()/sdio_writeb().
+ *
+ * Transfers must be in one transaction or the firmware goes bonkers.
+ * This means that the transfer must either be small enough to do a
+ * byte based transfer or it must be padded to a multiple of the
+ * current block size.
+ *
+ * As SDIO is still new to the kernel, it is unfortunately common with
+ * bugs in the host controllers related to that. One such bug is that
+ * controllers cannot do transfers that aren't a multiple of 4 bytes.
+ * If you don't have time to fix the host controller driver, you can
+ * work around the problem by modifying if_sdio_host_to_card() and
+ * if_sdio_card_to_host() to pad the data.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/netdevice.h>
+#include <linux/delay.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio.h>
+#include <linux/mmc/host.h>
+#include <linux/pm_runtime.h>
+
+#include "host.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "cmd.h"
+#include "if_sdio.h"
+
+static void if_sdio_interrupt(struct sdio_func *func);
+
+/* The if_sdio_remove() callback function is called when
+ * user removes this module from kernel space or ejects
+ * the card from the slot. The driver handles these 2 cases
+ * differently for SD8688 combo chip.
+ * If the user is removing the module, the FUNC_SHUTDOWN
+ * command for SD8688 is sent to the firmware.
+ * If the card is removed, there is no need to send this command.
+ *
+ * The variable 'user_rmmod' is used to distinguish these two
+ * scenarios. This flag is initialized as FALSE in case the card
+ * is removed, and will be set to TRUE for module removal when
+ * module_exit function is called.
+ */
+static u8 user_rmmod;
+
+static const struct sdio_device_id if_sdio_ids[] = {
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL,
+			SDIO_DEVICE_ID_MARVELL_LIBERTAS) },
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL,
+			SDIO_DEVICE_ID_MARVELL_8688_WLAN) },
+	{ /* end: all zeroes */				},
+};
+
+MODULE_DEVICE_TABLE(sdio, if_sdio_ids);
+
+#define MODEL_8385	0x04
+#define MODEL_8686	0x0b
+#define MODEL_8688	0x10
+
+static const struct lbs_fw_table fw_table[] = {
+	{ MODEL_8385, "libertas/sd8385_helper.bin", "libertas/sd8385.bin" },
+	{ MODEL_8385, "sd8385_helper.bin", "sd8385.bin" },
+	{ MODEL_8686, "libertas/sd8686_v9_helper.bin", "libertas/sd8686_v9.bin" },
+	{ MODEL_8686, "libertas/sd8686_v8_helper.bin", "libertas/sd8686_v8.bin" },
+	{ MODEL_8686, "sd8686_helper.bin", "sd8686.bin" },
+	{ MODEL_8688, "libertas/sd8688_helper.bin", "libertas/sd8688.bin" },
+	{ MODEL_8688, "sd8688_helper.bin", "sd8688.bin" },
+	{ 0, NULL, NULL }
+};
+MODULE_FIRMWARE("libertas/sd8385_helper.bin");
+MODULE_FIRMWARE("libertas/sd8385.bin");
+MODULE_FIRMWARE("sd8385_helper.bin");
+MODULE_FIRMWARE("sd8385.bin");
+MODULE_FIRMWARE("libertas/sd8686_v9_helper.bin");
+MODULE_FIRMWARE("libertas/sd8686_v9.bin");
+MODULE_FIRMWARE("libertas/sd8686_v8_helper.bin");
+MODULE_FIRMWARE("libertas/sd8686_v8.bin");
+MODULE_FIRMWARE("sd8686_helper.bin");
+MODULE_FIRMWARE("sd8686.bin");
+MODULE_FIRMWARE("libertas/sd8688_helper.bin");
+MODULE_FIRMWARE("libertas/sd8688.bin");
+MODULE_FIRMWARE("sd8688_helper.bin");
+MODULE_FIRMWARE("sd8688.bin");
+
+struct if_sdio_packet {
+	struct list_head	list;
+	u16			nb;
+	u8			buffer[] __aligned(4);
+};
+
+struct if_sdio_card {
+	struct sdio_func	*func;
+	struct lbs_private	*priv;
+
+	int			model;
+	unsigned long		ioport;
+	unsigned int		scratch_reg;
+	bool			started;
+	wait_queue_head_t	pwron_waitq;
+
+	u8			buffer[65536] __attribute__((aligned(4)));
+
+	spinlock_t		lock;
+	struct list_head	packets;
+
+	struct workqueue_struct	*workqueue;
+	struct work_struct	packet_worker;
+	struct work_struct	reset_worker;
+
+	u8			rx_unit;
+};
+
+static void if_sdio_finish_power_on(struct if_sdio_card *card);
+static int if_sdio_power_off(struct if_sdio_card *card);
+
+/********************************************************************/
+/* I/O                                                              */
+/********************************************************************/
+
+/*
+ *  For SD8385/SD8686, this function reads firmware status after
+ *  the image is downloaded, or reads RX packet length when
+ *  interrupt (with IF_SDIO_H_INT_UPLD bit set) is received.
+ *  For SD8688, this function reads firmware status only.
+ */
+static u16 if_sdio_read_scratch(struct if_sdio_card *card, int *err)
+{
+	int ret;
+	u16 scratch;
+
+	scratch = sdio_readb(card->func, card->scratch_reg, &ret);
+	if (!ret)
+		scratch |= sdio_readb(card->func, card->scratch_reg + 1,
+					&ret) << 8;
+
+	if (err)
+		*err = ret;
+
+	if (ret)
+		return 0xffff;
+
+	return scratch;
+}
+
+static u8 if_sdio_read_rx_unit(struct if_sdio_card *card)
+{
+	int ret;
+	u8 rx_unit;
+
+	rx_unit = sdio_readb(card->func, IF_SDIO_RX_UNIT, &ret);
+
+	if (ret)
+		rx_unit = 0;
+
+	return rx_unit;
+}
+
+static u16 if_sdio_read_rx_len(struct if_sdio_card *card, int *err)
+{
+	int ret;
+	u16 rx_len;
+
+	switch (card->model) {
+	case MODEL_8385:
+	case MODEL_8686:
+		rx_len = if_sdio_read_scratch(card, &ret);
+		break;
+	case MODEL_8688:
+	default: /* for newer chipsets */
+		rx_len = sdio_readb(card->func, IF_SDIO_RX_LEN, &ret);
+		if (!ret)
+			rx_len <<= card->rx_unit;
+		else
+			rx_len = 0xffff;	/* invalid length */
+
+		break;
+	}
+
+	if (err)
+		*err = ret;
+
+	return rx_len;
+}
+
+static int if_sdio_handle_cmd(struct if_sdio_card *card,
+		u8 *buffer, unsigned size)
+{
+	struct lbs_private *priv = card->priv;
+	int ret;
+	unsigned long flags;
+	u8 i;
+
+	if (size > LBS_CMD_BUFFER_SIZE) {
+		lbs_deb_sdio("response packet too large (%d bytes)\n",
+			(int)size);
+		ret = -E2BIG;
+		goto out;
+	}
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	i = (priv->resp_idx == 0) ? 1 : 0;
+	BUG_ON(priv->resp_len[i]);
+	priv->resp_len[i] = size;
+	memcpy(priv->resp_buf[i], buffer, size);
+	lbs_notify_command_response(priv, i);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	ret = 0;
+
+out:
+	return ret;
+}
+
+static int if_sdio_handle_data(struct if_sdio_card *card,
+		u8 *buffer, unsigned size)
+{
+	int ret;
+	struct sk_buff *skb;
+
+	if (size > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
+		lbs_deb_sdio("response packet too large (%d bytes)\n",
+			(int)size);
+		ret = -E2BIG;
+		goto out;
+	}
+
+	skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + NET_IP_ALIGN);
+	if (!skb) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	skb_reserve(skb, NET_IP_ALIGN);
+
+	skb_put_data(skb, buffer, size);
+
+	lbs_process_rxed_packet(card->priv, skb);
+
+	ret = 0;
+
+out:
+	return ret;
+}
+
+static int if_sdio_handle_event(struct if_sdio_card *card,
+		u8 *buffer, unsigned size)
+{
+	int ret;
+	u32 event;
+
+	if (card->model == MODEL_8385) {
+		event = sdio_readb(card->func, IF_SDIO_EVENT, &ret);
+		if (ret)
+			goto out;
+
+		/* right shift 3 bits to get the event id */
+		event >>= 3;
+	} else {
+		if (size < 4) {
+			lbs_deb_sdio("event packet too small (%d bytes)\n",
+				(int)size);
+			ret = -EINVAL;
+			goto out;
+		}
+		event = buffer[3] << 24;
+		event |= buffer[2] << 16;
+		event |= buffer[1] << 8;
+		event |= buffer[0] << 0;
+	}
+
+	lbs_queue_event(card->priv, event & 0xFF);
+	ret = 0;
+
+out:
+	return ret;
+}
+
+static int if_sdio_wait_status(struct if_sdio_card *card, const u8 condition)
+{
+	u8 status;
+	unsigned long timeout;
+	int ret = 0;
+
+	timeout = jiffies + HZ;
+	while (1) {
+		status = sdio_readb(card->func, IF_SDIO_STATUS, &ret);
+		if (ret)
+			return ret;
+		if ((status & condition) == condition)
+			break;
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
+		mdelay(1);
+	}
+	return ret;
+}
+
+static int if_sdio_card_to_host(struct if_sdio_card *card)
+{
+	int ret;
+	u16 size, type, chunk;
+
+	size = if_sdio_read_rx_len(card, &ret);
+	if (ret)
+		goto out;
+
+	if (size < 4) {
+		lbs_deb_sdio("invalid packet size (%d bytes) from firmware\n",
+			(int)size);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = if_sdio_wait_status(card, IF_SDIO_IO_RDY);
+	if (ret)
+		goto out;
+
+	/*
+	 * The transfer must be in one transaction or the firmware
+	 * goes suicidal. There's no way to guarantee that for all
+	 * controllers, but we can at least try.
+	 */
+	chunk = sdio_align_size(card->func, size);
+
+	ret = sdio_readsb(card->func, card->buffer, card->ioport, chunk);
+	if (ret)
+		goto out;
+
+	chunk = card->buffer[0] | (card->buffer[1] << 8);
+	type = card->buffer[2] | (card->buffer[3] << 8);
+
+	lbs_deb_sdio("packet of type %d and size %d bytes\n",
+		(int)type, (int)chunk);
+
+	if (chunk > size) {
+		lbs_deb_sdio("packet fragment (%d > %d)\n",
+			(int)chunk, (int)size);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (chunk < size) {
+		lbs_deb_sdio("packet fragment (%d < %d)\n",
+			(int)chunk, (int)size);
+	}
+
+	switch (type) {
+	case MVMS_CMD:
+		ret = if_sdio_handle_cmd(card, card->buffer + 4, chunk - 4);
+		if (ret)
+			goto out;
+		break;
+	case MVMS_DAT:
+		ret = if_sdio_handle_data(card, card->buffer + 4, chunk - 4);
+		if (ret)
+			goto out;
+		break;
+	case MVMS_EVENT:
+		ret = if_sdio_handle_event(card, card->buffer + 4, chunk - 4);
+		if (ret)
+			goto out;
+		break;
+	default:
+		lbs_deb_sdio("invalid type (%d) from firmware\n",
+				(int)type);
+		ret = -EINVAL;
+		goto out;
+	}
+
+out:
+	if (ret)
+		pr_err("problem fetching packet from firmware\n");
+
+	return ret;
+}
+
+static void if_sdio_host_to_card_worker(struct work_struct *work)
+{
+	struct if_sdio_card *card;
+	struct if_sdio_packet *packet;
+	int ret;
+	unsigned long flags;
+
+	card = container_of(work, struct if_sdio_card, packet_worker);
+
+	while (1) {
+		spin_lock_irqsave(&card->lock, flags);
+		packet = list_first_entry_or_null(&card->packets,
+						  struct if_sdio_packet, list);
+		if (packet)
+			list_del(&packet->list);
+		spin_unlock_irqrestore(&card->lock, flags);
+
+		if (!packet)
+			break;
+
+		sdio_claim_host(card->func);
+
+		ret = if_sdio_wait_status(card, IF_SDIO_IO_RDY);
+		if (ret == 0) {
+			ret = sdio_writesb(card->func, card->ioport,
+					   packet->buffer, packet->nb);
+		}
+
+		if (ret)
+			pr_err("error %d sending packet to firmware\n", ret);
+
+		sdio_release_host(card->func);
+
+		kfree(packet);
+	}
+}
+
+/********************************************************************/
+/* Firmware                                                         */
+/********************************************************************/
+
+#define FW_DL_READY_STATUS (IF_SDIO_IO_RDY | IF_SDIO_DL_RDY)
+
+static int if_sdio_prog_helper(struct if_sdio_card *card,
+				const struct firmware *fw)
+{
+	int ret;
+	unsigned long timeout;
+	u8 *chunk_buffer;
+	u32 chunk_size;
+	const u8 *firmware;
+	size_t size;
+
+	chunk_buffer = kzalloc(64, GFP_KERNEL);
+	if (!chunk_buffer) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	sdio_claim_host(card->func);
+
+	ret = sdio_set_block_size(card->func, 32);
+	if (ret)
+		goto release;
+
+	firmware = fw->data;
+	size = fw->size;
+
+	while (size) {
+		ret = if_sdio_wait_status(card, FW_DL_READY_STATUS);
+		if (ret)
+			goto release;
+
+		/* On some platforms (like Davinci) the chip needs more time
+		 * between helper blocks.
+		 */
+		mdelay(2);
+
+		chunk_size = min_t(size_t, size, 60);
+
+		*((__le32*)chunk_buffer) = cpu_to_le32(chunk_size);
+		memcpy(chunk_buffer + 4, firmware, chunk_size);
+/*
+		lbs_deb_sdio("sending %d bytes chunk\n", chunk_size);
+*/
+		ret = sdio_writesb(card->func, card->ioport,
+				chunk_buffer, 64);
+		if (ret)
+			goto release;
+
+		firmware += chunk_size;
+		size -= chunk_size;
+	}
+
+	/* an empty block marks the end of the transfer */
+	memset(chunk_buffer, 0, 4);
+	ret = sdio_writesb(card->func, card->ioport, chunk_buffer, 64);
+	if (ret)
+		goto release;
+
+	lbs_deb_sdio("waiting for helper to boot...\n");
+
+	/* wait for the helper to boot by looking at the size register */
+	timeout = jiffies + HZ;
+	while (1) {
+		u16 req_size;
+
+		req_size = sdio_readb(card->func, IF_SDIO_RD_BASE, &ret);
+		if (ret)
+			goto release;
+
+		req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1, &ret) << 8;
+		if (ret)
+			goto release;
+
+		if (req_size != 0)
+			break;
+
+		if (time_after(jiffies, timeout)) {
+			ret = -ETIMEDOUT;
+			goto release;
+		}
+
+		msleep(10);
+	}
+
+	ret = 0;
+
+release:
+	sdio_release_host(card->func);
+	kfree(chunk_buffer);
+
+out:
+	if (ret)
+		pr_err("failed to load helper firmware\n");
+
+	return ret;
+}
+
+static int if_sdio_prog_real(struct if_sdio_card *card,
+				const struct firmware *fw)
+{
+	int ret;
+	unsigned long timeout;
+	u8 *chunk_buffer;
+	u32 chunk_size;
+	const u8 *firmware;
+	size_t size, req_size;
+
+	chunk_buffer = kzalloc(512, GFP_KERNEL);
+	if (!chunk_buffer) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	sdio_claim_host(card->func);
+
+	ret = sdio_set_block_size(card->func, 32);
+	if (ret)
+		goto release;
+
+	firmware = fw->data;
+	size = fw->size;
+
+	while (size) {
+		timeout = jiffies + HZ;
+		while (1) {
+			ret = if_sdio_wait_status(card, FW_DL_READY_STATUS);
+			if (ret)
+				goto release;
+
+			req_size = sdio_readb(card->func, IF_SDIO_RD_BASE,
+					&ret);
+			if (ret)
+				goto release;
+
+			req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1,
+					&ret) << 8;
+			if (ret)
+				goto release;
+
+			/*
+			 * For SD8688 wait until the length is not 0, 1 or 2
+			 * before downloading the first FW block,
+			 * since BOOT code writes the register to indicate the
+			 * helper/FW download winner,
+			 * the value could be 1 or 2 (Func1 or Func2).
+			 */
+			if ((size != fw->size) || (req_size > 2))
+				break;
+			if (time_after(jiffies, timeout)) {
+				ret = -ETIMEDOUT;
+				goto release;
+			}
+			mdelay(1);
+		}
+
+/*
+		lbs_deb_sdio("firmware wants %d bytes\n", (int)req_size);
+*/
+		if (req_size == 0) {
+			lbs_deb_sdio("firmware helper gave up early\n");
+			ret = -EIO;
+			goto release;
+		}
+
+		if (req_size & 0x01) {
+			lbs_deb_sdio("firmware helper signalled error\n");
+			ret = -EIO;
+			goto release;
+		}
+
+		if (req_size > size)
+			req_size = size;
+
+		while (req_size) {
+			chunk_size = min_t(size_t, req_size, 512);
+
+			memcpy(chunk_buffer, firmware, chunk_size);
+/*
+			lbs_deb_sdio("sending %d bytes (%d bytes) chunk\n",
+				chunk_size, (chunk_size + 31) / 32 * 32);
+*/
+			ret = sdio_writesb(card->func, card->ioport,
+				chunk_buffer, roundup(chunk_size, 32));
+			if (ret)
+				goto release;
+
+			firmware += chunk_size;
+			size -= chunk_size;
+			req_size -= chunk_size;
+		}
+	}
+
+	ret = 0;
+
+	lbs_deb_sdio("waiting for firmware to boot...\n");
+
+	/* wait for the firmware to boot */
+	timeout = jiffies + HZ;
+	while (1) {
+		u16 scratch;
+
+		scratch = if_sdio_read_scratch(card, &ret);
+		if (ret)
+			goto release;
+
+		if (scratch == IF_SDIO_FIRMWARE_OK)
+			break;
+
+		if (time_after(jiffies, timeout)) {
+			ret = -ETIMEDOUT;
+			goto release;
+		}
+
+		msleep(10);
+	}
+
+	ret = 0;
+
+release:
+	sdio_release_host(card->func);
+	kfree(chunk_buffer);
+
+out:
+	if (ret)
+		pr_err("failed to load firmware\n");
+
+	return ret;
+}
+
+static void if_sdio_do_prog_firmware(struct lbs_private *priv, int ret,
+				     const struct firmware *helper,
+				     const struct firmware *mainfw)
+{
+	struct if_sdio_card *card = priv->card;
+
+	if (ret) {
+		pr_err("failed to find firmware (%d)\n", ret);
+		return;
+	}
+
+	ret = if_sdio_prog_helper(card, helper);
+	if (ret)
+		return;
+
+	lbs_deb_sdio("Helper firmware loaded\n");
+
+	ret = if_sdio_prog_real(card, mainfw);
+	if (ret)
+		return;
+
+	lbs_deb_sdio("Firmware loaded\n");
+	if_sdio_finish_power_on(card);
+}
+
+static int if_sdio_prog_firmware(struct if_sdio_card *card)
+{
+	int ret;
+	u16 scratch;
+
+	/*
+	 * Disable interrupts
+	 */
+	sdio_claim_host(card->func);
+	sdio_writeb(card->func, 0x00, IF_SDIO_H_INT_MASK, &ret);
+	sdio_release_host(card->func);
+
+	sdio_claim_host(card->func);
+	scratch = if_sdio_read_scratch(card, &ret);
+	sdio_release_host(card->func);
+
+	lbs_deb_sdio("firmware status = %#x\n", scratch);
+	lbs_deb_sdio("scratch ret = %d\n", ret);
+
+	if (ret)
+		goto out;
+
+
+	/*
+	 * The manual clearly describes that FEDC is the right code to use
+	 * to detect firmware presence, but for SD8686 it is not that simple.
+	 * Scratch is also used to store the RX packet length, so we lose
+	 * the FEDC value early on. So we use a non-zero check in order
+	 * to validate firmware presence.
+	 * Additionally, the SD8686 in the Gumstix always has the high scratch
+	 * bit set, even when the firmware is not loaded. So we have to
+	 * exclude that from the test.
+	 */
+	if (scratch == IF_SDIO_FIRMWARE_OK) {
+		lbs_deb_sdio("firmware already loaded\n");
+		if_sdio_finish_power_on(card);
+		return 0;
+	} else if ((card->model == MODEL_8686) && (scratch & 0x7fff)) {
+		lbs_deb_sdio("firmware may be running\n");
+		if_sdio_finish_power_on(card);
+		return 0;
+	}
+
+	ret = lbs_get_firmware_async(card->priv, &card->func->dev, card->model,
+				     fw_table, if_sdio_do_prog_firmware);
+
+out:
+	return ret;
+}
+
+/********************************************************************/
+/* Power management                                                 */
+/********************************************************************/
+
+/* Finish power on sequence (after firmware is loaded) */
+static void if_sdio_finish_power_on(struct if_sdio_card *card)
+{
+	struct sdio_func *func = card->func;
+	struct lbs_private *priv = card->priv;
+	int ret;
+
+	sdio_claim_host(func);
+	sdio_set_block_size(card->func, IF_SDIO_BLOCK_SIZE);
+
+	/*
+	 * Get rx_unit if the chip is SD8688 or newer.
+	 * SD8385 & SD8686 do not have rx_unit.
+	 */
+	if ((card->model != MODEL_8385)
+			&& (card->model != MODEL_8686))
+		card->rx_unit = if_sdio_read_rx_unit(card);
+	else
+		card->rx_unit = 0;
+
+	/*
+	 * Set up the interrupt handler late.
+	 *
+	 * If we set it up earlier, the (buggy) hardware generates a spurious
+	 * interrupt, even before the interrupt has been enabled, with
+	 * CCCR_INTx = 0.
+	 *
+	 * We register the interrupt handler late so that we can handle any
+	 * spurious interrupts, and also to avoid generation of that known
+	 * spurious interrupt in the first place.
+	 */
+	ret = sdio_claim_irq(func, if_sdio_interrupt);
+	if (ret)
+		goto release;
+
+	/*
+	 * Enable interrupts now that everything is set up
+	 */
+	sdio_writeb(func, 0x0f, IF_SDIO_H_INT_MASK, &ret);
+	if (ret)
+		goto release_irq;
+
+	sdio_release_host(func);
+
+	/* Set fw_ready before queuing any commands so that
+	 * lbs_thread won't block from sending them to firmware.
+	 */
+	priv->fw_ready = 1;
+
+	/*
+	 * FUNC_INIT is required for SD8688 WLAN/BT multiple functions
+	 */
+	if (card->model == MODEL_8688) {
+		struct cmd_header cmd;
+
+		memset(&cmd, 0, sizeof(cmd));
+
+		lbs_deb_sdio("send function INIT command\n");
+		if (__lbs_cmd(priv, CMD_FUNC_INIT, &cmd, sizeof(cmd),
+				lbs_cmd_copyback, (unsigned long) &cmd))
+			netdev_alert(priv->dev, "CMD_FUNC_INIT cmd failed\n");
+	}
+
+	wake_up(&card->pwron_waitq);
+
+	if (!card->started) {
+		ret = lbs_start_card(priv);
+		if_sdio_power_off(card);
+		if (ret == 0) {
+			card->started = true;
+			/* Tell PM core that we don't need the card to be
+			 * powered now */
+			pm_runtime_put(&func->dev);
+		}
+	}
+
+	return;
+
+release_irq:
+	sdio_release_irq(func);
+release:
+	sdio_release_host(func);
+}
+
+static int if_sdio_power_on(struct if_sdio_card *card)
+{
+	struct sdio_func *func = card->func;
+	struct mmc_host *host = func->card->host;
+	int ret;
+
+	sdio_claim_host(func);
+
+	ret = sdio_enable_func(func);
+	if (ret)
+		goto release;
+
+	/* For 1-bit transfers to the 8686 model, we need to enable the
+	 * interrupt flag in the CCCR register. Set the MMC_QUIRK_LENIENT_FN0
+	 * bit to allow access to non-vendor registers. */
+	if ((card->model == MODEL_8686) &&
+	    (host->caps & MMC_CAP_SDIO_IRQ) &&
+	    (host->ios.bus_width == MMC_BUS_WIDTH_1)) {
+		u8 reg;
+
+		func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
+		reg = sdio_f0_readb(func, SDIO_CCCR_IF, &ret);
+		if (ret)
+			goto disable;
+
+		reg |= SDIO_BUS_ECSI;
+		sdio_f0_writeb(func, reg, SDIO_CCCR_IF, &ret);
+		if (ret)
+			goto disable;
+	}
+
+	card->ioport = sdio_readb(func, IF_SDIO_IOPORT, &ret);
+	if (ret)
+		goto disable;
+
+	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 1, &ret) << 8;
+	if (ret)
+		goto disable;
+
+	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 2, &ret) << 16;
+	if (ret)
+		goto disable;
+
+	sdio_release_host(func);
+	ret = if_sdio_prog_firmware(card);
+	if (ret) {
+		sdio_claim_host(func);
+		goto disable;
+	}
+
+	return 0;
+
+disable:
+	sdio_disable_func(func);
+release:
+	sdio_release_host(func);
+	return ret;
+}
+
+static int if_sdio_power_off(struct if_sdio_card *card)
+{
+	struct sdio_func *func = card->func;
+	struct lbs_private *priv = card->priv;
+
+	priv->fw_ready = 0;
+
+	sdio_claim_host(func);
+	sdio_release_irq(func);
+	sdio_disable_func(func);
+	sdio_release_host(func);
+	return 0;
+}
+
+
+/*******************************************************************/
+/* Libertas callbacks                                              */
+/*******************************************************************/
+
+static int if_sdio_host_to_card(struct lbs_private *priv,
+		u8 type, u8 *buf, u16 nb)
+{
+	int ret;
+	struct if_sdio_card *card;
+	struct if_sdio_packet *packet;
+	u16 size;
+	unsigned long flags;
+
+	card = priv->card;
+
+	if (nb > (65536 - sizeof(struct if_sdio_packet) - 4)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/*
+	 * The transfer must be in one transaction or the firmware
+	 * goes suicidal. There's no way to guarantee that for all
+	 * controllers, but we can at least try.
+	 */
+	size = sdio_align_size(card->func, nb + 4);
+
+	packet = kzalloc(sizeof(struct if_sdio_packet) + size,
+			GFP_ATOMIC);
+	if (!packet) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	packet->nb = size;
+
+	/*
+	 * SDIO specific header.
+	 */
+	packet->buffer[0] = (nb + 4) & 0xff;
+	packet->buffer[1] = ((nb + 4) >> 8) & 0xff;
+	packet->buffer[2] = type;
+	packet->buffer[3] = 0;
+
+	memcpy(packet->buffer + 4, buf, nb);
+
+	spin_lock_irqsave(&card->lock, flags);
+
+	list_add_tail(&packet->list, &card->packets);
+
+	switch (type) {
+	case MVMS_CMD:
+		priv->dnld_sent = DNLD_CMD_SENT;
+		break;
+	case MVMS_DAT:
+		priv->dnld_sent = DNLD_DATA_SENT;
+		break;
+	default:
+		lbs_deb_sdio("unknown packet type %d\n", (int)type);
+	}
+
+	spin_unlock_irqrestore(&card->lock, flags);
+
+	queue_work(card->workqueue, &card->packet_worker);
+
+	ret = 0;
+
+out:
+	return ret;
+}
+
+static int if_sdio_enter_deep_sleep(struct lbs_private *priv)
+{
+	int ret;
+	struct cmd_header cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	lbs_deb_sdio("send DEEP_SLEEP command\n");
+	ret = __lbs_cmd(priv, CMD_802_11_DEEP_SLEEP, &cmd, sizeof(cmd),
+			lbs_cmd_copyback, (unsigned long) &cmd);
+	if (ret)
+		netdev_err(priv->dev, "DEEP_SLEEP cmd failed\n");
+
+	mdelay(200);
+	return ret;
+}
+
+static int if_sdio_exit_deep_sleep(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+	int ret = -1;
+
+	sdio_claim_host(card->func);
+
+	sdio_writeb(card->func, HOST_POWER_UP, CONFIGURATION_REG, &ret);
+	if (ret)
+		netdev_err(priv->dev, "sdio_writeb failed!\n");
+
+	sdio_release_host(card->func);
+
+	return ret;
+}
+
+static int if_sdio_reset_deep_sleep_wakeup(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+	int ret = -1;
+
+	sdio_claim_host(card->func);
+
+	sdio_writeb(card->func, 0, CONFIGURATION_REG, &ret);
+	if (ret)
+		netdev_err(priv->dev, "sdio_writeb failed!\n");
+
+	sdio_release_host(card->func);
+
+	return ret;
+
+}
+
+static void if_sdio_reset_card_worker(struct work_struct *work)
+{
+	int ret;
+	const char *name;
+	struct device *dev;
+	struct if_sdio_card *card;
+	struct mmc_host *reset_host;
+
+	card = container_of(work, struct if_sdio_card, reset_worker);
+	reset_host = card->func->card->host;
+	name = card->priv->dev->name;
+	dev = &card->func->dev;
+
+	/*
+	 * The actual reset operation must be run outside of lbs_thread. This
+	 * is because mmc_remove_host() will cause the device to be instantly
+	 * destroyed, and the libertas driver then needs to end lbs_thread,
+	 * leading to a deadlock.
+	 *
+	 * We run it in a workqueue totally independent from the if_sdio_card
+	 * instance for that reason.
+	 */
+
+	dev_info(dev, "resetting card %s...", name);
+	mmc_remove_host(reset_host);
+	ret = mmc_add_host(reset_host);
+	if (ret)
+		dev_err(dev, "%s: can't add mmc host, error %d\n", name, ret);
+}
+
+static void if_sdio_reset_card(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+
+	if (!work_pending(&card->reset_worker))
+		schedule_work(&card->reset_worker);
+}
+
+static int if_sdio_power_save(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+	int ret;
+
+	flush_workqueue(card->workqueue);
+
+	ret = if_sdio_power_off(card);
+
+	/* Let runtime PM know the card is powered off */
+	pm_runtime_put_sync(&card->func->dev);
+
+	return ret;
+}
+
+static int if_sdio_power_restore(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+	int r;
+
+	/* Make sure the card will not be powered off by runtime PM */
+	pm_runtime_get_sync(&card->func->dev);
+
+	r = if_sdio_power_on(card);
+	if (r)
+		return r;
+
+	wait_event(card->pwron_waitq, priv->fw_ready);
+	return 0;
+}
+
+
+/*******************************************************************/
+/* SDIO callbacks                                                  */
+/*******************************************************************/
+
+static void if_sdio_interrupt(struct sdio_func *func)
+{
+	int ret;
+	struct if_sdio_card *card;
+	u8 cause;
+
+	card = sdio_get_drvdata(func);
+
+	cause = sdio_readb(card->func, IF_SDIO_H_INT_STATUS, &ret);
+	if (ret || !cause)
+		return;
+
+	lbs_deb_sdio("interrupt: 0x%X\n", (unsigned)cause);
+
+	sdio_writeb(card->func, ~cause, IF_SDIO_H_INT_STATUS, &ret);
+	if (ret)
+		return;
+
+	/*
+	 * Ignore the define name, this really means the card has
+	 * successfully received the command.
+	 */
+	card->priv->is_activity_detected = 1;
+	if (cause & IF_SDIO_H_INT_DNLD)
+		lbs_host_to_card_done(card->priv);
+
+
+	if (cause & IF_SDIO_H_INT_UPLD) {
+		ret = if_sdio_card_to_host(card);
+		if (ret)
+			return;
+	}
+}
+
+static int if_sdio_probe(struct sdio_func *func,
+		const struct sdio_device_id *id)
+{
+	struct if_sdio_card *card;
+	struct lbs_private *priv;
+	int ret, i;
+	unsigned int model;
+	struct if_sdio_packet *packet, *tmp;
+
+	for (i = 0;i < func->card->num_info;i++) {
+		if (sscanf(func->card->info[i],
+				"802.11 SDIO ID: %x", &model) == 1)
+			break;
+		if (sscanf(func->card->info[i],
+				"ID: %x", &model) == 1)
+			break;
+		if (!strcmp(func->card->info[i], "IBIS Wireless SDIO Card")) {
+			model = MODEL_8385;
+			break;
+		}
+	}
+
+	if (i == func->card->num_info) {
+		pr_err("unable to identify card model\n");
+		return -ENODEV;
+	}
+
+	card = kzalloc(sizeof(struct if_sdio_card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->func = func;
+	card->model = model;
+
+	switch (card->model) {
+	case MODEL_8385:
+		card->scratch_reg = IF_SDIO_SCRATCH_OLD;
+		break;
+	case MODEL_8686:
+		card->scratch_reg = IF_SDIO_SCRATCH;
+		break;
+	case MODEL_8688:
+	default: /* for newer chipsets */
+		card->scratch_reg = IF_SDIO_FW_STATUS;
+		break;
+	}
+
+	spin_lock_init(&card->lock);
+	INIT_LIST_HEAD(&card->packets);
+
+	card->workqueue = alloc_workqueue("libertas_sdio", WQ_MEM_RECLAIM, 0);
+	if (unlikely(!card->workqueue)) {
+		ret = -ENOMEM;
+		goto err_queue;
+	}
+
+	INIT_WORK(&card->reset_worker, if_sdio_reset_card_worker);
+	INIT_WORK(&card->packet_worker, if_sdio_host_to_card_worker);
+	init_waitqueue_head(&card->pwron_waitq);
+
+	/* Check if we support this card */
+	for (i = 0; i < ARRAY_SIZE(fw_table); i++) {
+		if (card->model == fw_table[i].model)
+			break;
+	}
+	if (i == ARRAY_SIZE(fw_table)) {
+		pr_err("unknown card model 0x%x\n", card->model);
+		ret = -ENODEV;
+		goto free;
+	}
+
+	sdio_set_drvdata(func, card);
+
+	lbs_deb_sdio("class = 0x%X, vendor = 0x%X, "
+			"device = 0x%X, model = 0x%X, ioport = 0x%X\n",
+			func->class, func->vendor, func->device,
+			model, (unsigned)card->ioport);
+
+
+	priv = lbs_add_card(card, &func->dev);
+	if (IS_ERR(priv)) {
+		ret = PTR_ERR(priv);
+		goto free;
+	}
+
+	card->priv = priv;
+
+	priv->card = card;
+	priv->hw_host_to_card = if_sdio_host_to_card;
+	priv->enter_deep_sleep = if_sdio_enter_deep_sleep;
+	priv->exit_deep_sleep = if_sdio_exit_deep_sleep;
+	priv->reset_deep_sleep_wakeup = if_sdio_reset_deep_sleep_wakeup;
+	priv->reset_card = if_sdio_reset_card;
+	priv->power_save = if_sdio_power_save;
+	priv->power_restore = if_sdio_power_restore;
+	priv->is_polling = !(func->card->host->caps & MMC_CAP_SDIO_IRQ);
+	ret = if_sdio_power_on(card);
+	if (ret)
+		goto err_activate_card;
+
+out:
+	return ret;
+
+err_activate_card:
+	flush_workqueue(card->workqueue);
+	lbs_remove_card(priv);
+free:
+	cancel_work_sync(&card->packet_worker);
+	cancel_work_sync(&card->reset_worker);
+	destroy_workqueue(card->workqueue);
+err_queue:
+	list_for_each_entry_safe(packet, tmp, &card->packets, list)
+		kfree(packet);
+
+	kfree(card);
+
+	goto out;
+}
+
+static void if_sdio_remove(struct sdio_func *func)
+{
+	struct if_sdio_card *card;
+	struct if_sdio_packet *packet, *tmp;
+
+	card = sdio_get_drvdata(func);
+
+	/* Undo decrement done above in if_sdio_probe */
+	pm_runtime_get_noresume(&func->dev);
+
+	if (user_rmmod && (card->model == MODEL_8688)) {
+		/*
+		 * FUNC_SHUTDOWN is required for SD8688 WLAN/BT
+		 * multiple functions
+		 */
+		struct cmd_header cmd;
+
+		memset(&cmd, 0, sizeof(cmd));
+
+		lbs_deb_sdio("send function SHUTDOWN command\n");
+		if (__lbs_cmd(card->priv, CMD_FUNC_SHUTDOWN,
+				&cmd, sizeof(cmd), lbs_cmd_copyback,
+				(unsigned long) &cmd))
+			pr_alert("CMD_FUNC_SHUTDOWN cmd failed\n");
+	}
+
+
+	lbs_deb_sdio("call remove card\n");
+	lbs_stop_card(card->priv);
+	lbs_remove_card(card->priv);
+
+	cancel_work_sync(&card->packet_worker);
+	cancel_work_sync(&card->reset_worker);
+	destroy_workqueue(card->workqueue);
+
+	list_for_each_entry_safe(packet, tmp, &card->packets, list)
+		kfree(packet);
+
+	kfree(card);
+}
+
+static int if_sdio_suspend(struct device *dev)
+{
+	struct sdio_func *func = dev_to_sdio_func(dev);
+	struct if_sdio_card *card = sdio_get_drvdata(func);
+	struct lbs_private *priv = card->priv;
+	int ret;
+
+	mmc_pm_flag_t flags = sdio_get_host_pm_caps(func);
+	priv->power_up_on_resume = false;
+
+	/* If we're powered off anyway, just let the mmc layer remove the
+	 * card. */
+	if (!lbs_iface_active(priv)) {
+		if (priv->fw_ready) {
+			priv->power_up_on_resume = true;
+			if_sdio_power_off(card);
+		}
+
+		return 0;
+	}
+
+	dev_info(dev, "%s: suspend: PM flags = 0x%x\n",
+		 sdio_func_id(func), flags);
+
+	/* If we aren't being asked to wake on anything, we should bail out
+	 * and let the SD stack power down the card.
+	 */
+	if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
+		dev_info(dev, "Suspend without wake params -- powering down card\n");
+		if (priv->fw_ready) {
+			ret = lbs_suspend(priv);
+			if (ret)
+				return ret;
+
+			priv->power_up_on_resume = true;
+			if_sdio_power_off(card);
+		}
+
+		return 0;
+	}
+
+	if (!(flags & MMC_PM_KEEP_POWER)) {
+		dev_err(dev, "%s: cannot remain alive while host is suspended\n",
+			sdio_func_id(func));
+		return -ENOSYS;
+	}
+
+	ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+	if (ret)
+		return ret;
+
+	ret = lbs_suspend(priv);
+	if (ret)
+		return ret;
+
+	return sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ);
+}
+
+static int if_sdio_resume(struct device *dev)
+{
+	struct sdio_func *func = dev_to_sdio_func(dev);
+	struct if_sdio_card *card = sdio_get_drvdata(func);
+	int ret;
+
+	dev_info(dev, "%s: resume: we're back\n", sdio_func_id(func));
+
+	if (card->priv->power_up_on_resume) {
+		if_sdio_power_on(card);
+		wait_event(card->pwron_waitq, card->priv->fw_ready);
+	}
+
+	ret = lbs_resume(card->priv);
+
+	return ret;
+}
+
+static const struct dev_pm_ops if_sdio_pm_ops = {
+	.suspend	= if_sdio_suspend,
+	.resume		= if_sdio_resume,
+};
+
+static struct sdio_driver if_sdio_driver = {
+	.name		= "libertas_sdio",
+	.id_table	= if_sdio_ids,
+	.probe		= if_sdio_probe,
+	.remove		= if_sdio_remove,
+	.drv = {
+		.pm = &if_sdio_pm_ops,
+	},
+};
+
+/*******************************************************************/
+/* Module functions                                                */
+/*******************************************************************/
+
+static int __init if_sdio_init_module(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "libertas_sdio: Libertas SDIO driver\n");
+	printk(KERN_INFO "libertas_sdio: Copyright Pierre Ossman\n");
+
+	ret = sdio_register_driver(&if_sdio_driver);
+
+	/* Clear the flag in case user removes the card. */
+	user_rmmod = 0;
+
+	return ret;
+}
+
+static void __exit if_sdio_exit_module(void)
+{
+	/* Set the flag as user is removing this module. */
+	user_rmmod = 1;
+
+	sdio_unregister_driver(&if_sdio_driver);
+}
+
+module_init(if_sdio_init_module);
+module_exit(if_sdio_exit_module);
+
+MODULE_DESCRIPTION("Libertas SDIO WLAN Driver");
+MODULE_AUTHOR("Pierre Ossman");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.h b/drivers/net/wireless/marvell/libertas/if_sdio.h
new file mode 100644
index 0000000000..a78fde1f90
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_sdio.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  linux/drivers/net/wireless/libertas/if_sdio.h
+ *
+ *  Copyright 2007 Pierre Ossman
+ */
+
+#ifndef _LBS_IF_SDIO_H
+#define _LBS_IF_SDIO_H
+
+#define IF_SDIO_IOPORT		0x00
+
+#define IF_SDIO_H_INT_MASK	0x04
+#define   IF_SDIO_H_INT_OFLOW	0x08
+#define   IF_SDIO_H_INT_UFLOW	0x04
+#define   IF_SDIO_H_INT_DNLD	0x02
+#define   IF_SDIO_H_INT_UPLD	0x01
+
+#define IF_SDIO_H_INT_STATUS	0x05
+#define IF_SDIO_H_INT_RSR	0x06
+#define IF_SDIO_H_INT_STATUS2	0x07
+
+#define IF_SDIO_RD_BASE		0x10
+
+#define IF_SDIO_STATUS		0x20
+#define   IF_SDIO_IO_RDY	0x08
+#define   IF_SDIO_CIS_RDY	0x04
+#define   IF_SDIO_UL_RDY	0x02
+#define   IF_SDIO_DL_RDY	0x01
+
+#define IF_SDIO_C_INT_MASK	0x24
+#define IF_SDIO_C_INT_STATUS	0x28
+#define IF_SDIO_C_INT_RSR	0x2C
+
+#define IF_SDIO_SCRATCH		0x34
+#define IF_SDIO_SCRATCH_OLD	0x80fe
+#define IF_SDIO_FW_STATUS	0x40
+#define   IF_SDIO_FIRMWARE_OK	0xfedc
+
+#define IF_SDIO_RX_LEN		0x42
+#define IF_SDIO_RX_UNIT		0x43
+
+#define IF_SDIO_EVENT           0x80fc
+
+#define IF_SDIO_BLOCK_SIZE	256
+#define CONFIGURATION_REG               0x03
+#define HOST_POWER_UP                   (0x1U << 1)
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/if_spi.c b/drivers/net/wireless/marvell/libertas/if_spi.c
new file mode 100644
index 0000000000..8690b0114e
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_spi.c
@@ -0,0 +1,1288 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *	linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ *	Driver for Marvell SPI WLAN cards.
+ *
+ *	Copyright 2008 Analog Devices Inc.
+ *
+ *	Authors:
+ *	Andrey Yurovsky <andrey@cozybit.com>
+ *	Colin McCabe <colin@cozybit.com>
+ *
+ *	Inspired by if_sdio.c, Copyright 2007-2008 Pierre Ossman
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/hardirq.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/spi/libertas_spi.h>
+#include <linux/spi/spi.h>
+
+#include "host.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "if_spi.h"
+
+struct if_spi_packet {
+	struct list_head		list;
+	u16				blen;
+	u8				buffer[] __aligned(4);
+};
+
+struct if_spi_card {
+	struct spi_device		*spi;
+	struct lbs_private		*priv;
+	struct libertas_spi_platform_data *pdata;
+
+	/* The card ID and card revision, as reported by the hardware. */
+	u16				card_id;
+	u8				card_rev;
+
+	/* The last time that we initiated an SPU operation */
+	unsigned long			prev_xfer_time;
+
+	int				use_dummy_writes;
+	unsigned long			spu_port_delay;
+	unsigned long			spu_reg_delay;
+
+	/* Handles all SPI communication (except for FW load) */
+	struct workqueue_struct		*workqueue;
+	struct work_struct		packet_work;
+	struct work_struct		resume_work;
+
+	u8				cmd_buffer[IF_SPI_CMD_BUF_SIZE];
+
+	/* A buffer of incoming packets from libertas core.
+	 * Since we can't sleep in hw_host_to_card, we have to buffer
+	 * them. */
+	struct list_head		cmd_packet_list;
+	struct list_head		data_packet_list;
+
+	/* Protects cmd_packet_list and data_packet_list */
+	spinlock_t			buffer_lock;
+
+	/* True is card suspended */
+	u8				suspended;
+};
+
+static void free_if_spi_card(struct if_spi_card *card)
+{
+	struct if_spi_packet *packet, *tmp;
+
+	list_for_each_entry_safe(packet, tmp, &card->cmd_packet_list, list) {
+		list_del(&packet->list);
+		kfree(packet);
+	}
+	list_for_each_entry_safe(packet, tmp, &card->data_packet_list, list) {
+		list_del(&packet->list);
+		kfree(packet);
+	}
+	kfree(card);
+}
+
+#define MODEL_8385	0x04
+#define MODEL_8686	0x0b
+#define MODEL_8688	0x10
+
+static const struct lbs_fw_table fw_table[] = {
+	{ MODEL_8385, "libertas/gspi8385_helper.bin", "libertas/gspi8385.bin" },
+	{ MODEL_8385, "libertas/gspi8385_hlp.bin", "libertas/gspi8385.bin" },
+	{ MODEL_8686, "libertas/gspi8686_v9_helper.bin", "libertas/gspi8686_v9.bin" },
+	{ MODEL_8686, "libertas/gspi8686_hlp.bin", "libertas/gspi8686.bin" },
+	{ MODEL_8688, "libertas/gspi8688_helper.bin", "libertas/gspi8688.bin" },
+	{ 0, NULL, NULL }
+};
+MODULE_FIRMWARE("libertas/gspi8385_helper.bin");
+MODULE_FIRMWARE("libertas/gspi8385_hlp.bin");
+MODULE_FIRMWARE("libertas/gspi8385.bin");
+MODULE_FIRMWARE("libertas/gspi8686_v9_helper.bin");
+MODULE_FIRMWARE("libertas/gspi8686_v9.bin");
+MODULE_FIRMWARE("libertas/gspi8686_hlp.bin");
+MODULE_FIRMWARE("libertas/gspi8686.bin");
+MODULE_FIRMWARE("libertas/gspi8688_helper.bin");
+MODULE_FIRMWARE("libertas/gspi8688.bin");
+
+
+/*
+ * SPI Interface Unit Routines
+ *
+ * The SPU sits between the host and the WLAN module.
+ * All communication with the firmware is through SPU transactions.
+ *
+ * First we have to put a SPU register name on the bus. Then we can
+ * either read from or write to that register.
+ *
+ */
+
+static void spu_transaction_init(struct if_spi_card *card)
+{
+	if (!time_after(jiffies, card->prev_xfer_time + 1)) {
+		/* Unfortunately, the SPU requires a delay between successive
+		 * transactions. If our last transaction was more than a jiffy
+		 * ago, we have obviously already delayed enough.
+		 * If not, we have to busy-wait to be on the safe side. */
+		ndelay(400);
+	}
+}
+
+static void spu_transaction_finish(struct if_spi_card *card)
+{
+	card->prev_xfer_time = jiffies;
+}
+
+/*
+ * Write out a byte buffer to an SPI register,
+ * using a series of 16-bit transfers.
+ */
+static int spu_write(struct if_spi_card *card, u16 reg, const u8 *buf, int len)
+{
+	int err = 0;
+	__le16 reg_out = cpu_to_le16(reg | IF_SPI_WRITE_OPERATION_MASK);
+	struct spi_message m;
+	struct spi_transfer reg_trans;
+	struct spi_transfer data_trans;
+
+	spi_message_init(&m);
+	memset(&reg_trans, 0, sizeof(reg_trans));
+	memset(&data_trans, 0, sizeof(data_trans));
+
+	/* You must give an even number of bytes to the SPU, even if it
+	 * doesn't care about the last one.  */
+	BUG_ON(len & 0x1);
+
+	spu_transaction_init(card);
+
+	/* write SPU register index */
+	reg_trans.tx_buf = &reg_out;
+	reg_trans.len = sizeof(reg_out);
+
+	data_trans.tx_buf = buf;
+	data_trans.len = len;
+
+	spi_message_add_tail(&reg_trans, &m);
+	spi_message_add_tail(&data_trans, &m);
+
+	err = spi_sync(card->spi, &m);
+	spu_transaction_finish(card);
+	return err;
+}
+
+static inline int spu_write_u16(struct if_spi_card *card, u16 reg, u16 val)
+{
+	__le16 buff;
+
+	buff = cpu_to_le16(val);
+	return spu_write(card, reg, (u8 *)&buff, sizeof(u16));
+}
+
+static inline int spu_reg_is_port_reg(u16 reg)
+{
+	switch (reg) {
+	case IF_SPI_IO_RDWRPORT_REG:
+	case IF_SPI_CMD_RDWRPORT_REG:
+	case IF_SPI_DATA_RDWRPORT_REG:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static int spu_read(struct if_spi_card *card, u16 reg, u8 *buf, int len)
+{
+	unsigned int delay;
+	int err = 0;
+	__le16 reg_out = cpu_to_le16(reg | IF_SPI_READ_OPERATION_MASK);
+	struct spi_message m;
+	struct spi_transfer reg_trans;
+	struct spi_transfer dummy_trans;
+	struct spi_transfer data_trans;
+
+	/*
+	 * You must take an even number of bytes from the SPU, even if you
+	 * don't care about the last one.
+	 */
+	BUG_ON(len & 0x1);
+
+	spu_transaction_init(card);
+
+	spi_message_init(&m);
+	memset(&reg_trans, 0, sizeof(reg_trans));
+	memset(&dummy_trans, 0, sizeof(dummy_trans));
+	memset(&data_trans, 0, sizeof(data_trans));
+
+	/* write SPU register index */
+	reg_trans.tx_buf = &reg_out;
+	reg_trans.len = sizeof(reg_out);
+	spi_message_add_tail(&reg_trans, &m);
+
+	delay = spu_reg_is_port_reg(reg) ? card->spu_port_delay :
+						card->spu_reg_delay;
+	if (card->use_dummy_writes) {
+		/* Clock in dummy cycles while the SPU fills the FIFO */
+		dummy_trans.len = delay / 8;
+		spi_message_add_tail(&dummy_trans, &m);
+	} else {
+		/* Busy-wait while the SPU fills the FIFO */
+		reg_trans.delay.value =
+			DIV_ROUND_UP((100 + (delay * 10)), 1000);
+		reg_trans.delay.unit = SPI_DELAY_UNIT_USECS;
+	}
+
+	/* read in data */
+	data_trans.rx_buf = buf;
+	data_trans.len = len;
+	spi_message_add_tail(&data_trans, &m);
+
+	err = spi_sync(card->spi, &m);
+	spu_transaction_finish(card);
+	return err;
+}
+
+/* Read 16 bits from an SPI register */
+static inline int spu_read_u16(struct if_spi_card *card, u16 reg, u16 *val)
+{
+	__le16 buf;
+	int ret;
+
+	ret = spu_read(card, reg, (u8 *)&buf, sizeof(buf));
+	if (ret == 0)
+		*val = le16_to_cpup(&buf);
+	return ret;
+}
+
+/*
+ * Read 32 bits from an SPI register.
+ * The low 16 bits are read first.
+ */
+static int spu_read_u32(struct if_spi_card *card, u16 reg, u32 *val)
+{
+	__le32 buf;
+	int err;
+
+	err = spu_read(card, reg, (u8 *)&buf, sizeof(buf));
+	if (!err)
+		*val = le32_to_cpup(&buf);
+	return err;
+}
+
+/*
+ * Keep reading 16 bits from an SPI register until you get the correct result.
+ *
+ * If mask = 0, the correct result is any non-zero number.
+ * If mask != 0, the correct result is any number where
+ * number & target_mask == target
+ *
+ * Returns -ETIMEDOUT if a second passes without the correct result.
+ */
+static int spu_wait_for_u16(struct if_spi_card *card, u16 reg,
+			u16 target_mask, u16 target)
+{
+	int err;
+	unsigned long timeout = jiffies + 5*HZ;
+	while (1) {
+		u16 val;
+		err = spu_read_u16(card, reg, &val);
+		if (err)
+			return err;
+		if (target_mask) {
+			if ((val & target_mask) == target)
+				return 0;
+		} else {
+			if (val)
+				return 0;
+		}
+		udelay(100);
+		if (time_after(jiffies, timeout)) {
+			pr_err("%s: timeout with val=%02x, target_mask=%02x, target=%02x\n",
+			       __func__, val, target_mask, target);
+			return -ETIMEDOUT;
+		}
+	}
+}
+
+/*
+ * Read 16 bits from an SPI register until you receive a specific value.
+ * Returns -ETIMEDOUT if a 4 tries pass without success.
+ */
+static int spu_wait_for_u32(struct if_spi_card *card, u32 reg, u32 target)
+{
+	int err, try;
+	for (try = 0; try < 4; ++try) {
+		u32 val = 0;
+		err = spu_read_u32(card, reg, &val);
+		if (err)
+			return err;
+		if (val == target)
+			return 0;
+		mdelay(100);
+	}
+	return -ETIMEDOUT;
+}
+
+static int spu_set_interrupt_mode(struct if_spi_card *card,
+			   int suppress_host_int,
+			   int auto_int)
+{
+	int err = 0;
+
+	/*
+	 * We can suppress a host interrupt by clearing the appropriate
+	 * bit in the "host interrupt status mask" register
+	 */
+	if (suppress_host_int) {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+		if (err)
+			return err;
+	} else {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG,
+			      IF_SPI_HISM_TX_DOWNLOAD_RDY |
+			      IF_SPI_HISM_RX_UPLOAD_RDY |
+			      IF_SPI_HISM_CMD_DOWNLOAD_RDY |
+			      IF_SPI_HISM_CARDEVENT |
+			      IF_SPI_HISM_CMD_UPLOAD_RDY);
+		if (err)
+			return err;
+	}
+
+	/*
+	 * If auto-interrupts are on, the completion of certain transactions
+	 * will trigger an interrupt automatically. If auto-interrupts
+	 * are off, we need to set the "Card Interrupt Cause" register to
+	 * trigger a card interrupt.
+	 */
+	if (auto_int) {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_CTRL_REG,
+				IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO |
+				IF_SPI_HICT_RX_UPLOAD_OVER_AUTO |
+				IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO |
+				IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO);
+		if (err)
+			return err;
+	} else {
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_MASK_REG, 0);
+		if (err)
+			return err;
+	}
+	return err;
+}
+
+static int spu_get_chip_revision(struct if_spi_card *card,
+				  u16 *card_id, u8 *card_rev)
+{
+	int err = 0;
+	u32 dev_ctrl;
+	err = spu_read_u32(card, IF_SPI_DEVICEID_CTRL_REG, &dev_ctrl);
+	if (err)
+		return err;
+	*card_id = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dev_ctrl);
+	*card_rev = IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dev_ctrl);
+	return err;
+}
+
+static int spu_set_bus_mode(struct if_spi_card *card, u16 mode)
+{
+	int err = 0;
+	u16 rval;
+	/* set bus mode */
+	err = spu_write_u16(card, IF_SPI_SPU_BUS_MODE_REG, mode);
+	if (err)
+		return err;
+	/* Check that we were able to read back what we just wrote. */
+	err = spu_read_u16(card, IF_SPI_SPU_BUS_MODE_REG, &rval);
+	if (err)
+		return err;
+	if ((rval & 0xF) != mode) {
+		pr_err("Can't read bus mode register\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int spu_init(struct if_spi_card *card, int use_dummy_writes)
+{
+	int err = 0;
+	u32 delay;
+
+	/*
+	 * We have to start up in timed delay mode so that we can safely
+	 * read the Delay Read Register.
+	 */
+	card->use_dummy_writes = 0;
+	err = spu_set_bus_mode(card,
+				IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+				IF_SPI_BUS_MODE_DELAY_METHOD_TIMED |
+				IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+	if (err)
+		return err;
+	card->spu_port_delay = 1000;
+	card->spu_reg_delay = 1000;
+	err = spu_read_u32(card, IF_SPI_DELAY_READ_REG, &delay);
+	if (err)
+		return err;
+	card->spu_port_delay = delay & 0x0000ffff;
+	card->spu_reg_delay = (delay & 0xffff0000) >> 16;
+
+	/* If dummy clock delay mode has been requested, switch to it now */
+	if (use_dummy_writes) {
+		card->use_dummy_writes = 1;
+		err = spu_set_bus_mode(card,
+				IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING |
+				IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK |
+				IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA);
+		if (err)
+			return err;
+	}
+
+	lbs_deb_spi("Initialized SPU unit. "
+		    "spu_port_delay=0x%04lx, spu_reg_delay=0x%04lx\n",
+		    card->spu_port_delay, card->spu_reg_delay);
+	return err;
+}
+
+/*
+ * Firmware Loading
+ */
+
+static int if_spi_prog_helper_firmware(struct if_spi_card *card,
+					const struct firmware *firmware)
+{
+	int err = 0;
+	int bytes_remaining;
+	const u8 *fw;
+	u8 temp[HELPER_FW_LOAD_CHUNK_SZ];
+
+	err = spu_set_interrupt_mode(card, 1, 0);
+	if (err)
+		goto out;
+
+	bytes_remaining = firmware->size;
+	fw = firmware->data;
+
+	/* Load helper firmware image */
+	while (bytes_remaining > 0) {
+		/*
+		 * Scratch pad 1 should contain the number of bytes we
+		 * want to download to the firmware
+		 */
+		err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG,
+					HELPER_FW_LOAD_CHUNK_SZ);
+		if (err)
+			goto out;
+
+		err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+					IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+					IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+		if (err)
+			goto out;
+
+		/*
+		 * Feed the data into the command read/write port reg
+		 * in chunks of 64 bytes
+		 */
+		memset(temp, 0, sizeof(temp));
+		memcpy(temp, fw,
+		       min(bytes_remaining, HELPER_FW_LOAD_CHUNK_SZ));
+		mdelay(10);
+		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+					temp, HELPER_FW_LOAD_CHUNK_SZ);
+		if (err)
+			goto out;
+
+		/* Interrupt the boot code */
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+		if (err)
+			goto out;
+		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+				       IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+		if (err)
+			goto out;
+		bytes_remaining -= HELPER_FW_LOAD_CHUNK_SZ;
+		fw += HELPER_FW_LOAD_CHUNK_SZ;
+	}
+
+	/*
+	 * Once the helper / single stage firmware download is complete,
+	 * write 0 to scratch pad 1 and interrupt the
+	 * bootloader. This completes the helper download.
+	 */
+	err = spu_write_u16(card, IF_SPI_SCRATCH_1_REG, FIRMWARE_DNLD_OK);
+	if (err)
+		goto out;
+	err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+	if (err)
+		goto out;
+	err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+				IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+out:
+	if (err)
+		pr_err("failed to load helper firmware (err=%d)\n", err);
+
+	return err;
+}
+
+/*
+ * Returns the length of the next packet the firmware expects us to send.
+ * Sets crc_err if the previous transfer had a CRC error.
+ */
+static int if_spi_prog_main_firmware_check_len(struct if_spi_card *card,
+						int *crc_err)
+{
+	u16 len;
+	int err = 0;
+
+	/*
+	 * wait until the host interrupt status register indicates
+	 * that we are ready to download
+	 */
+	err = spu_wait_for_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+				IF_SPI_HIST_CMD_DOWNLOAD_RDY,
+				IF_SPI_HIST_CMD_DOWNLOAD_RDY);
+	if (err) {
+		pr_err("timed out waiting for host_int_status\n");
+		return err;
+	}
+
+	/* Ask the device how many bytes of firmware it wants. */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+	if (err)
+		return err;
+
+	if (len > IF_SPI_CMD_BUF_SIZE) {
+		pr_err("firmware load device requested a larger transfer than we are prepared to handle (len = %d)\n",
+		       len);
+		return -EIO;
+	}
+	if (len & 0x1) {
+		lbs_deb_spi("%s: crc error\n", __func__);
+		len &= ~0x1;
+		*crc_err = 1;
+	} else
+		*crc_err = 0;
+
+	return len;
+}
+
+static int if_spi_prog_main_firmware(struct if_spi_card *card,
+					const struct firmware *firmware)
+{
+	struct lbs_private *priv = card->priv;
+	int len, prev_len;
+	int bytes, crc_err = 0, err = 0;
+	const u8 *fw;
+	u16 num_crc_errs;
+
+	err = spu_set_interrupt_mode(card, 1, 0);
+	if (err)
+		goto out;
+
+	err = spu_wait_for_u16(card, IF_SPI_SCRATCH_1_REG, 0, 0);
+	if (err) {
+		netdev_err(priv->dev,
+			   "%s: timed out waiting for initial scratch reg = 0\n",
+			   __func__);
+		goto out;
+	}
+
+	num_crc_errs = 0;
+	prev_len = 0;
+	bytes = firmware->size;
+	fw = firmware->data;
+	while ((len = if_spi_prog_main_firmware_check_len(card, &crc_err))) {
+		if (len < 0) {
+			err = len;
+			goto out;
+		}
+		if (bytes < 0) {
+			/*
+			 * If there are no more bytes left, we would normally
+			 * expect to have terminated with len = 0
+			 */
+			netdev_err(priv->dev,
+				   "Firmware load wants more bytes than we have to offer.\n");
+			break;
+		}
+		if (crc_err) {
+			/* Previous transfer failed. */
+			if (++num_crc_errs > MAX_MAIN_FW_LOAD_CRC_ERR) {
+				pr_err("Too many CRC errors encountered in firmware load.\n");
+				err = -EIO;
+				goto out;
+			}
+		} else {
+			/* Previous transfer succeeded. Advance counters. */
+			bytes -= prev_len;
+			fw += prev_len;
+		}
+		if (bytes < len) {
+			memset(card->cmd_buffer, 0, len);
+			memcpy(card->cmd_buffer, fw, bytes);
+		} else
+			memcpy(card->cmd_buffer, fw, len);
+
+		err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, 0);
+		if (err)
+			goto out;
+		err = spu_write(card, IF_SPI_CMD_RDWRPORT_REG,
+				card->cmd_buffer, len);
+		if (err)
+			goto out;
+		err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG ,
+					IF_SPI_CIC_CMD_DOWNLOAD_OVER);
+		if (err)
+			goto out;
+		prev_len = len;
+	}
+	if (bytes > prev_len) {
+		pr_err("firmware load wants fewer bytes than we have to offer\n");
+	}
+
+	/* Confirm firmware download */
+	err = spu_wait_for_u32(card, IF_SPI_SCRATCH_4_REG,
+					SUCCESSFUL_FW_DOWNLOAD_MAGIC);
+	if (err) {
+		pr_err("failed to confirm the firmware download\n");
+		goto out;
+	}
+
+out:
+	if (err)
+		pr_err("failed to load firmware (err=%d)\n", err);
+
+	return err;
+}
+
+/*
+ * SPI Transfer Thread
+ *
+ * The SPI worker handles all SPI transfers, so there is no need for a lock.
+ */
+
+/* Move a command from the card to the host */
+static int if_spi_c2h_cmd(struct if_spi_card *card)
+{
+	struct lbs_private *priv = card->priv;
+	unsigned long flags;
+	int err = 0;
+	u16 len;
+	u8 i;
+
+	/*
+	 * We need a buffer big enough to handle whatever people send to
+	 * hw_host_to_card
+	 */
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_CMD_BUFFER_SIZE);
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE < LBS_UPLD_SIZE);
+
+	/*
+	 * It's just annoying if the buffer size isn't a multiple of 4, because
+	 * then we might have len < IF_SPI_CMD_BUF_SIZE but
+	 * ALIGN(len, 4) > IF_SPI_CMD_BUF_SIZE
+	 */
+	BUILD_BUG_ON(IF_SPI_CMD_BUF_SIZE % 4 != 0);
+
+	/* How many bytes are there to read? */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_2_REG, &len);
+	if (err)
+		goto out;
+	if (!len) {
+		netdev_err(priv->dev, "%s: error: card has no data for host\n",
+			   __func__);
+		err = -EINVAL;
+		goto out;
+	} else if (len > IF_SPI_CMD_BUF_SIZE) {
+		netdev_err(priv->dev,
+			   "%s: error: response packet too large: %d bytes, but maximum is %d\n",
+			   __func__, len, IF_SPI_CMD_BUF_SIZE);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* Read the data from the WLAN module into our command buffer */
+	err = spu_read(card, IF_SPI_CMD_RDWRPORT_REG,
+				card->cmd_buffer, ALIGN(len, 4));
+	if (err)
+		goto out;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	i = (priv->resp_idx == 0) ? 1 : 0;
+	BUG_ON(priv->resp_len[i]);
+	priv->resp_len[i] = len;
+	memcpy(priv->resp_buf[i], card->cmd_buffer, len);
+	lbs_notify_command_response(priv, i);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+out:
+	if (err)
+		netdev_err(priv->dev, "%s: err=%d\n", __func__, err);
+
+	return err;
+}
+
+/* Move data from the card to the host */
+static int if_spi_c2h_data(struct if_spi_card *card)
+{
+	struct lbs_private *priv = card->priv;
+	struct sk_buff *skb;
+	char *data;
+	u16 len;
+	int err = 0;
+
+	/* How many bytes are there to read? */
+	err = spu_read_u16(card, IF_SPI_SCRATCH_1_REG, &len);
+	if (err)
+		goto out;
+	if (!len) {
+		netdev_err(priv->dev, "%s: error: card has no data for host\n",
+			   __func__);
+		err = -EINVAL;
+		goto out;
+	} else if (len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
+		netdev_err(priv->dev,
+			   "%s: error: card has %d bytes of data, but our maximum skb size is %zu\n",
+			   __func__, len, MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* TODO: should we allocate a smaller skb if we have less data? */
+	skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
+	if (!skb) {
+		err = -ENOBUFS;
+		goto out;
+	}
+	skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
+	data = skb_put(skb, len);
+
+	/* Read the data from the WLAN module into our skb... */
+	err = spu_read(card, IF_SPI_DATA_RDWRPORT_REG, data, ALIGN(len, 4));
+	if (err) {
+		dev_kfree_skb(skb);
+		goto out;
+	}
+
+	/* pass the SKB to libertas */
+	err = lbs_process_rxed_packet(card->priv, skb);
+	/* lbs_process_rxed_packet() consumes the skb */
+
+out:
+	if (err)
+		netdev_err(priv->dev, "%s: err=%d\n", __func__, err);
+
+	return err;
+}
+
+/* Move data or a command from the host to the card. */
+static void if_spi_h2c(struct if_spi_card *card,
+			struct if_spi_packet *packet, int type)
+{
+	struct lbs_private *priv = card->priv;
+	int err = 0;
+	u16 port_reg;
+
+	switch (type) {
+	case MVMS_DAT:
+		port_reg = IF_SPI_DATA_RDWRPORT_REG;
+		break;
+	case MVMS_CMD:
+		port_reg = IF_SPI_CMD_RDWRPORT_REG;
+		break;
+	default:
+		netdev_err(priv->dev, "can't transfer buffer of type %d\n",
+			   type);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* Write the data to the card */
+	err = spu_write(card, port_reg, packet->buffer, packet->blen);
+	if (err)
+		goto out;
+
+out:
+	kfree(packet);
+
+	if (err)
+		netdev_err(priv->dev, "%s: error %d\n", __func__, err);
+}
+
+/* Inform the host about a card event */
+static void if_spi_e2h(struct if_spi_card *card)
+{
+	int err = 0;
+	u32 cause;
+	struct lbs_private *priv = card->priv;
+
+	err = spu_read_u32(card, IF_SPI_SCRATCH_3_REG, &cause);
+	if (err)
+		goto out;
+
+	/* re-enable the card event interrupt */
+	err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+			    ~IF_SPI_HICU_CARD_EVENT);
+	if (err)
+		goto out;
+
+	/* generate a card interrupt */
+	err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
+			    IF_SPI_CIC_HOST_EVENT);
+	if (err)
+		goto out;
+
+	lbs_queue_event(priv, cause & 0xff);
+out:
+	if (err)
+		netdev_err(priv->dev, "%s: error %d\n", __func__, err);
+}
+
+static void if_spi_host_to_card_worker(struct work_struct *work)
+{
+	int err;
+	struct if_spi_card *card;
+	u16 hiStatus;
+	unsigned long flags;
+	struct if_spi_packet *packet;
+	struct lbs_private *priv;
+
+	card = container_of(work, struct if_spi_card, packet_work);
+	priv = card->priv;
+
+	/*
+	 * Read the host interrupt status register to see what we
+	 * can do.
+	 */
+	err = spu_read_u16(card, IF_SPI_HOST_INT_STATUS_REG,
+				&hiStatus);
+	if (err) {
+		netdev_err(priv->dev, "I/O error\n");
+		goto err;
+	}
+
+	if (hiStatus & IF_SPI_HIST_CMD_UPLOAD_RDY) {
+		err = if_spi_c2h_cmd(card);
+		if (err)
+			goto err;
+	}
+	if (hiStatus & IF_SPI_HIST_RX_UPLOAD_RDY) {
+		err = if_spi_c2h_data(card);
+		if (err)
+			goto err;
+	}
+
+	/*
+	 * workaround: in PS mode, the card does not set the Command
+	 * Download Ready bit, but it sets TX Download Ready.
+	 */
+	if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY ||
+	   (card->priv->psstate != PS_STATE_FULL_POWER &&
+	    (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY))) {
+		/*
+		 * This means two things. First of all,
+		 * if there was a previous command sent, the card has
+		 * successfully received it.
+		 * Secondly, it is now ready to download another
+		 * command.
+		 */
+		lbs_host_to_card_done(card->priv);
+
+		/* Do we have any command packets from the host to send? */
+		packet = NULL;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		if (!list_empty(&card->cmd_packet_list)) {
+			packet = (struct if_spi_packet *)(card->
+					cmd_packet_list.next);
+			list_del(&packet->list);
+		}
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+		if (packet)
+			if_spi_h2c(card, packet, MVMS_CMD);
+	}
+	if (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY) {
+		/* Do we have any data packets from the host to send? */
+		packet = NULL;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		if (!list_empty(&card->data_packet_list)) {
+			packet = (struct if_spi_packet *)(card->
+					data_packet_list.next);
+			list_del(&packet->list);
+		}
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+
+		if (packet)
+			if_spi_h2c(card, packet, MVMS_DAT);
+	}
+	if (hiStatus & IF_SPI_HIST_CARD_EVENT)
+		if_spi_e2h(card);
+
+err:
+	if (err)
+		netdev_err(priv->dev, "%s: got error %d\n", __func__, err);
+}
+
+/*
+ * Host to Card
+ *
+ * Called from Libertas to transfer some data to the WLAN device
+ * We can't sleep here.
+ */
+static int if_spi_host_to_card(struct lbs_private *priv,
+				u8 type, u8 *buf, u16 nb)
+{
+	int err = 0;
+	unsigned long flags;
+	struct if_spi_card *card = priv->card;
+	struct if_spi_packet *packet;
+	u16 blen;
+
+	if (nb == 0) {
+		netdev_err(priv->dev, "%s: invalid size requested: %d\n",
+			   __func__, nb);
+		err = -EINVAL;
+		goto out;
+	}
+	blen = ALIGN(nb, 4);
+	packet = kzalloc(sizeof(struct if_spi_packet) + blen, GFP_ATOMIC);
+	if (!packet) {
+		err = -ENOMEM;
+		goto out;
+	}
+	packet->blen = blen;
+	memcpy(packet->buffer, buf, nb);
+	memset(packet->buffer + nb, 0, blen - nb);
+
+	switch (type) {
+	case MVMS_CMD:
+		priv->dnld_sent = DNLD_CMD_SENT;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		list_add_tail(&packet->list, &card->cmd_packet_list);
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+		break;
+	case MVMS_DAT:
+		priv->dnld_sent = DNLD_DATA_SENT;
+		spin_lock_irqsave(&card->buffer_lock, flags);
+		list_add_tail(&packet->list, &card->data_packet_list);
+		spin_unlock_irqrestore(&card->buffer_lock, flags);
+		break;
+	default:
+		kfree(packet);
+		netdev_err(priv->dev, "can't transfer buffer of type %d\n",
+			   type);
+		err = -EINVAL;
+		break;
+	}
+
+	/* Queue spi xfer work */
+	queue_work(card->workqueue, &card->packet_work);
+out:
+	return err;
+}
+
+/*
+ * Host Interrupts
+ *
+ * Service incoming interrupts from the WLAN device. We can't sleep here, so
+ * don't try to talk on the SPI bus, just queue the SPI xfer work.
+ */
+static irqreturn_t if_spi_host_interrupt(int irq, void *dev_id)
+{
+	struct if_spi_card *card = dev_id;
+
+	queue_work(card->workqueue, &card->packet_work);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * SPI callbacks
+ */
+
+static int if_spi_init_card(struct if_spi_card *card)
+{
+	struct lbs_private *priv = card->priv;
+	int err, i;
+	u32 scratch;
+	const struct firmware *helper = NULL;
+	const struct firmware *mainfw = NULL;
+
+	err = spu_init(card, card->pdata->use_dummy_writes);
+	if (err)
+		goto out;
+	err = spu_get_chip_revision(card, &card->card_id, &card->card_rev);
+	if (err)
+		goto out;
+
+	err = spu_read_u32(card, IF_SPI_SCRATCH_4_REG, &scratch);
+	if (err)
+		goto out;
+	if (scratch == SUCCESSFUL_FW_DOWNLOAD_MAGIC)
+		lbs_deb_spi("Firmware is already loaded for "
+			    "Marvell WLAN 802.11 adapter\n");
+	else {
+		/* Check if we support this card */
+		for (i = 0; i < ARRAY_SIZE(fw_table); i++) {
+			if (card->card_id == fw_table[i].model)
+				break;
+		}
+		if (i == ARRAY_SIZE(fw_table)) {
+			netdev_err(priv->dev, "Unsupported chip_id: 0x%02x\n",
+				   card->card_id);
+			err = -ENODEV;
+			goto out;
+		}
+
+		err = lbs_get_firmware(&card->spi->dev, card->card_id,
+					&fw_table[0], &helper, &mainfw);
+		if (err) {
+			netdev_err(priv->dev, "failed to find firmware (%d)\n",
+				   err);
+			goto out;
+		}
+
+		lbs_deb_spi("Initializing FW for Marvell WLAN 802.11 adapter "
+				"(chip_id = 0x%04x, chip_rev = 0x%02x) "
+				"attached to SPI bus_num %d, chip_select %d. "
+				"spi->max_speed_hz=%d\n",
+				card->card_id, card->card_rev,
+				card->spi->master->bus_num,
+				spi_get_chipselect(card->spi, 0),
+				card->spi->max_speed_hz);
+		err = if_spi_prog_helper_firmware(card, helper);
+		if (err)
+			goto out;
+		err = if_spi_prog_main_firmware(card, mainfw);
+		if (err)
+			goto out;
+		lbs_deb_spi("loaded FW for Marvell WLAN 802.11 adapter\n");
+	}
+
+	err = spu_set_interrupt_mode(card, 0, 1);
+	if (err)
+		goto out;
+
+out:
+	return err;
+}
+
+static void if_spi_resume_worker(struct work_struct *work)
+{
+	struct if_spi_card *card;
+
+	card = container_of(work, struct if_spi_card, resume_work);
+
+	if (card->suspended) {
+		if (card->pdata->setup)
+			card->pdata->setup(card->spi);
+
+		/* Init card ... */
+		if_spi_init_card(card);
+
+		enable_irq(card->spi->irq);
+
+		/* And resume it ... */
+		lbs_resume(card->priv);
+
+		card->suspended = 0;
+	}
+}
+
+static int if_spi_probe(struct spi_device *spi)
+{
+	struct if_spi_card *card;
+	struct lbs_private *priv = NULL;
+	struct libertas_spi_platform_data *pdata = dev_get_platdata(&spi->dev);
+	int err = 0;
+
+	if (!pdata) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	if (pdata->setup) {
+		err = pdata->setup(spi);
+		if (err)
+			goto out;
+	}
+
+	/* Allocate card structure to represent this specific device */
+	card = kzalloc(sizeof(struct if_spi_card), GFP_KERNEL);
+	if (!card) {
+		err = -ENOMEM;
+		goto teardown;
+	}
+	spi_set_drvdata(spi, card);
+	card->pdata = pdata;
+	card->spi = spi;
+	card->prev_xfer_time = jiffies;
+
+	INIT_LIST_HEAD(&card->cmd_packet_list);
+	INIT_LIST_HEAD(&card->data_packet_list);
+	spin_lock_init(&card->buffer_lock);
+
+	/* Initialize the SPI Interface Unit */
+
+	/* Firmware load */
+	err = if_spi_init_card(card);
+	if (err)
+		goto free_card;
+
+	/*
+	 * Register our card with libertas.
+	 * This will call alloc_etherdev.
+	 */
+	priv = lbs_add_card(card, &spi->dev);
+	if (IS_ERR(priv)) {
+		err = PTR_ERR(priv);
+		goto free_card;
+	}
+	card->priv = priv;
+	priv->setup_fw_on_resume = 1;
+	priv->card = card;
+	priv->hw_host_to_card = if_spi_host_to_card;
+	priv->enter_deep_sleep = NULL;
+	priv->exit_deep_sleep = NULL;
+	priv->reset_deep_sleep_wakeup = NULL;
+	priv->fw_ready = 1;
+
+	/* Initialize interrupt handling stuff. */
+	card->workqueue = alloc_workqueue("libertas_spi", WQ_MEM_RECLAIM, 0);
+	if (!card->workqueue) {
+		err = -ENOMEM;
+		goto remove_card;
+	}
+	INIT_WORK(&card->packet_work, if_spi_host_to_card_worker);
+	INIT_WORK(&card->resume_work, if_spi_resume_worker);
+
+	err = request_irq(spi->irq, if_spi_host_interrupt,
+			IRQF_TRIGGER_FALLING, "libertas_spi", card);
+	if (err) {
+		pr_err("can't get host irq line-- request_irq failed\n");
+		goto terminate_workqueue;
+	}
+
+	/*
+	 * Start the card.
+	 * This will call register_netdev, and we'll start
+	 * getting interrupts...
+	 */
+	err = lbs_start_card(priv);
+	if (err)
+		goto release_irq;
+
+	lbs_deb_spi("Finished initializing WLAN module.\n");
+
+	/* successful exit */
+	goto out;
+
+release_irq:
+	free_irq(spi->irq, card);
+terminate_workqueue:
+	destroy_workqueue(card->workqueue);
+remove_card:
+	lbs_remove_card(priv); /* will call free_netdev */
+free_card:
+	free_if_spi_card(card);
+teardown:
+	if (pdata->teardown)
+		pdata->teardown(spi);
+out:
+	return err;
+}
+
+static void libertas_spi_remove(struct spi_device *spi)
+{
+	struct if_spi_card *card = spi_get_drvdata(spi);
+	struct lbs_private *priv = card->priv;
+
+	lbs_deb_spi("libertas_spi_remove\n");
+
+	cancel_work_sync(&card->resume_work);
+
+	lbs_stop_card(priv);
+	lbs_remove_card(priv); /* will call free_netdev */
+
+	free_irq(spi->irq, card);
+	destroy_workqueue(card->workqueue);
+	if (card->pdata->teardown)
+		card->pdata->teardown(spi);
+	free_if_spi_card(card);
+}
+
+static int if_spi_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct if_spi_card *card = spi_get_drvdata(spi);
+
+	if (!card->suspended) {
+		lbs_suspend(card->priv);
+		flush_workqueue(card->workqueue);
+		disable_irq(spi->irq);
+
+		if (card->pdata->teardown)
+			card->pdata->teardown(spi);
+		card->suspended = 1;
+	}
+
+	return 0;
+}
+
+static int if_spi_resume(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct if_spi_card *card = spi_get_drvdata(spi);
+
+	/* Schedule delayed work */
+	schedule_work(&card->resume_work);
+
+	return 0;
+}
+
+static const struct dev_pm_ops if_spi_pm_ops = {
+	.suspend	= if_spi_suspend,
+	.resume		= if_spi_resume,
+};
+
+static struct spi_driver libertas_spi_driver = {
+	.probe	= if_spi_probe,
+	.remove = libertas_spi_remove,
+	.driver = {
+		.name	= "libertas_spi",
+		.pm	= &if_spi_pm_ops,
+	},
+};
+
+/*
+ * Module functions
+ */
+
+static int __init if_spi_init_module(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "libertas_spi: Libertas SPI driver\n");
+	ret = spi_register_driver(&libertas_spi_driver);
+
+	return ret;
+}
+
+static void __exit if_spi_exit_module(void)
+{
+	spi_unregister_driver(&libertas_spi_driver);
+}
+
+module_init(if_spi_init_module);
+module_exit(if_spi_exit_module);
+
+MODULE_DESCRIPTION("Libertas SPI WLAN Driver");
+MODULE_AUTHOR("Andrey Yurovsky <andrey@cozybit.com>, "
+	      "Colin McCabe <colin@cozybit.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:libertas_spi");
diff --git a/drivers/net/wireless/marvell/libertas/if_spi.h b/drivers/net/wireless/marvell/libertas/if_spi.h
new file mode 100644
index 0000000000..c65bdb941c
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_spi.h
@@ -0,0 +1,202 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *	linux/drivers/net/wireless/libertas/if_spi.c
+ *
+ *	Driver for Marvell SPI WLAN cards.
+ *
+ *	Copyright 2008 Analog Devices Inc.
+ *
+ *	Authors:
+ *	Andrey Yurovsky <andrey@cozybit.com>
+ *	Colin McCabe <colin@cozybit.com>
+ */
+
+#ifndef _LBS_IF_SPI_H_
+#define _LBS_IF_SPI_H_
+
+#define IPFIELD_ALIGN_OFFSET 2
+#define IF_SPI_CMD_BUF_SIZE 2400
+
+/***************** Firmware *****************/
+
+#define IF_SPI_FW_NAME_MAX 30
+
+#define MAX_MAIN_FW_LOAD_CRC_ERR 10
+
+/* Chunk size when loading the helper firmware */
+#define HELPER_FW_LOAD_CHUNK_SZ 64
+
+/* Value to write to indicate end of helper firmware dnld */
+#define FIRMWARE_DNLD_OK 0x0000
+
+/* Value to check once the main firmware is downloaded */
+#define SUCCESSFUL_FW_DOWNLOAD_MAGIC 0x88888888
+
+/***************** SPI Interface Unit *****************/
+/* Masks used in SPI register read/write operations */
+#define IF_SPI_READ_OPERATION_MASK 0x0
+#define IF_SPI_WRITE_OPERATION_MASK 0x8000
+
+/* SPI register offsets. 4-byte aligned. */
+#define IF_SPI_DEVICEID_CTRL_REG 0x00	/* DeviceID controller reg */
+#define IF_SPI_IO_READBASE_REG 0x04 	/* Read I/O base reg */
+#define IF_SPI_IO_WRITEBASE_REG 0x08	/* Write I/O base reg */
+#define IF_SPI_IO_RDWRPORT_REG 0x0C	/* Read/Write I/O port reg */
+
+#define IF_SPI_CMD_READBASE_REG 0x10	/* Read command base reg */
+#define IF_SPI_CMD_WRITEBASE_REG 0x14	/* Write command base reg */
+#define IF_SPI_CMD_RDWRPORT_REG 0x18	/* Read/Write command port reg */
+
+#define IF_SPI_DATA_READBASE_REG 0x1C	/* Read data base reg */
+#define IF_SPI_DATA_WRITEBASE_REG 0x20	/* Write data base reg */
+#define IF_SPI_DATA_RDWRPORT_REG 0x24	/* Read/Write data port reg */
+
+#define IF_SPI_SCRATCH_1_REG 0x28	/* Scratch reg 1 */
+#define IF_SPI_SCRATCH_2_REG 0x2C	/* Scratch reg 2 */
+#define IF_SPI_SCRATCH_3_REG 0x30	/* Scratch reg 3 */
+#define IF_SPI_SCRATCH_4_REG 0x34	/* Scratch reg 4 */
+
+#define IF_SPI_TX_FRAME_SEQ_NUM_REG 0x38 /* Tx frame sequence number reg */
+#define IF_SPI_TX_FRAME_STATUS_REG 0x3C	/* Tx frame status reg */
+
+#define IF_SPI_HOST_INT_CTRL_REG 0x40	/* Host interrupt controller reg */
+
+#define IF_SPI_CARD_INT_CAUSE_REG 0x44	/* Card interrupt cause reg */
+#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interrupt status reg */
+#define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */
+#define IF_SPI_CARD_INT_STATUS_MASK_REG	0x50 /* Card interrupt status mask */
+
+#define IF_SPI_CARD_INT_RESET_SELECT_REG 0x54 /* Card interrupt reset select */
+
+#define IF_SPI_HOST_INT_CAUSE_REG 0x58	/* Host interrupt cause reg */
+#define IF_SPI_HOST_INT_STATUS_REG 0x5C	/* Host interrupt status reg */
+#define IF_SPI_HOST_INT_EVENT_MASK_REG 0x60 /* Host interrupt event mask */
+#define IF_SPI_HOST_INT_STATUS_MASK_REG	0x64 /* Host interrupt status mask */
+#define IF_SPI_HOST_INT_RESET_SELECT_REG 0x68 /* Host interrupt reset select */
+
+#define IF_SPI_DELAY_READ_REG 0x6C	/* Delay read reg */
+#define IF_SPI_SPU_BUS_MODE_REG 0x70	/* SPU BUS mode reg */
+
+/***************** IF_SPI_DEVICEID_CTRL_REG *****************/
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dc) ((dc & 0xffff0000)>>16)
+#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dc) (dc & 0x000000ff)
+
+/***************** IF_SPI_HOST_INT_CTRL_REG *****************/
+/* Host Interrupt Control bit : Wake up */
+#define IF_SPI_HICT_WAKE_UP				(1<<0)
+/* Host Interrupt Control bit : WLAN ready */
+#define IF_SPI_HICT_WLAN_READY				(1<<1)
+/*#define IF_SPI_HICT_FIFO_FIRST_HALF_EMPTY		(1<<2) */
+/*#define IF_SPI_HICT_FIFO_SECOND_HALF_EMPTY		(1<<3) */
+/*#define IF_SPI_HICT_IRQSRC_WLAN			(1<<4) */
+/* Host Interrupt Control bit : Tx auto download */
+#define IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO		(1<<5)
+/* Host Interrupt Control bit : Rx auto upload */
+#define IF_SPI_HICT_RX_UPLOAD_OVER_AUTO			(1<<6)
+/* Host Interrupt Control bit : Command auto download */
+#define IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO		(1<<7)
+/* Host Interrupt Control bit : Command auto upload */
+#define IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO		(1<<8)
+
+/***************** IF_SPI_CARD_INT_CAUSE_REG *****************/
+/* Card Interrupt Case bit : Tx download over */
+#define IF_SPI_CIC_TX_DOWNLOAD_OVER			(1<<0)
+/* Card Interrupt Case bit : Rx upload over */
+#define IF_SPI_CIC_RX_UPLOAD_OVER			(1<<1)
+/* Card Interrupt Case bit : Command download over */
+#define IF_SPI_CIC_CMD_DOWNLOAD_OVER			(1<<2)
+/* Card Interrupt Case bit : Host event */
+#define IF_SPI_CIC_HOST_EVENT				(1<<3)
+/* Card Interrupt Case bit : Command upload over */
+#define IF_SPI_CIC_CMD_UPLOAD_OVER			(1<<4)
+/* Card Interrupt Case bit : Power down */
+#define IF_SPI_CIC_POWER_DOWN				(1<<5)
+
+/***************** IF_SPI_CARD_INT_STATUS_REG *****************/
+#define IF_SPI_CIS_TX_DOWNLOAD_OVER			(1<<0)
+#define IF_SPI_CIS_RX_UPLOAD_OVER			(1<<1)
+#define IF_SPI_CIS_CMD_DOWNLOAD_OVER			(1<<2)
+#define IF_SPI_CIS_HOST_EVENT				(1<<3)
+#define IF_SPI_CIS_CMD_UPLOAD_OVER			(1<<4)
+#define IF_SPI_CIS_POWER_DOWN				(1<<5)
+
+/***************** IF_SPI_HOST_INT_CAUSE_REG *****************/
+#define IF_SPI_HICU_TX_DOWNLOAD_RDY			(1<<0)
+#define IF_SPI_HICU_RX_UPLOAD_RDY			(1<<1)
+#define IF_SPI_HICU_CMD_DOWNLOAD_RDY			(1<<2)
+#define IF_SPI_HICU_CARD_EVENT				(1<<3)
+#define IF_SPI_HICU_CMD_UPLOAD_RDY			(1<<4)
+#define IF_SPI_HICU_IO_WR_FIFO_OVERFLOW			(1<<5)
+#define IF_SPI_HICU_IO_RD_FIFO_UNDERFLOW		(1<<6)
+#define IF_SPI_HICU_DATA_WR_FIFO_OVERFLOW		(1<<7)
+#define IF_SPI_HICU_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+#define IF_SPI_HICU_CMD_WR_FIFO_OVERFLOW		(1<<9)
+#define IF_SPI_HICU_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_REG *****************/
+/* Host Interrupt Status bit : Tx download ready */
+#define IF_SPI_HIST_TX_DOWNLOAD_RDY			(1<<0)
+/* Host Interrupt Status bit : Rx upload ready */
+#define IF_SPI_HIST_RX_UPLOAD_RDY			(1<<1)
+/* Host Interrupt Status bit : Command download ready */
+#define IF_SPI_HIST_CMD_DOWNLOAD_RDY			(1<<2)
+/* Host Interrupt Status bit : Card event */
+#define IF_SPI_HIST_CARD_EVENT				(1<<3)
+/* Host Interrupt Status bit : Command upload ready */
+#define IF_SPI_HIST_CMD_UPLOAD_RDY			(1<<4)
+/* Host Interrupt Status bit : I/O write FIFO overflow */
+#define IF_SPI_HIST_IO_WR_FIFO_OVERFLOW			(1<<5)
+/* Host Interrupt Status bit : I/O read FIFO underflow */
+#define IF_SPI_HIST_IO_RD_FIFO_UNDRFLOW			(1<<6)
+/* Host Interrupt Status bit : Data write FIFO overflow */
+#define IF_SPI_HIST_DATA_WR_FIFO_OVERFLOW		(1<<7)
+/* Host Interrupt Status bit : Data read FIFO underflow */
+#define IF_SPI_HIST_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+/* Host Interrupt Status bit : Command write FIFO overflow */
+#define IF_SPI_HIST_CMD_WR_FIFO_OVERFLOW		(1<<9)
+/* Host Interrupt Status bit : Command read FIFO underflow */
+#define IF_SPI_HIST_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_HOST_INT_STATUS_MASK_REG *****************/
+/* Host Interrupt Status Mask bit : Tx download ready */
+#define IF_SPI_HISM_TX_DOWNLOAD_RDY			(1<<0)
+/* Host Interrupt Status Mask bit : Rx upload ready */
+#define IF_SPI_HISM_RX_UPLOAD_RDY			(1<<1)
+/* Host Interrupt Status Mask bit : Command download ready */
+#define IF_SPI_HISM_CMD_DOWNLOAD_RDY			(1<<2)
+/* Host Interrupt Status Mask bit : Card event */
+#define IF_SPI_HISM_CARDEVENT				(1<<3)
+/* Host Interrupt Status Mask bit : Command upload ready */
+#define IF_SPI_HISM_CMD_UPLOAD_RDY			(1<<4)
+/* Host Interrupt Status Mask bit : I/O write FIFO overflow */
+#define IF_SPI_HISM_IO_WR_FIFO_OVERFLOW			(1<<5)
+/* Host Interrupt Status Mask bit : I/O read FIFO underflow */
+#define IF_SPI_HISM_IO_RD_FIFO_UNDERFLOW		(1<<6)
+/* Host Interrupt Status Mask bit : Data write FIFO overflow */
+#define IF_SPI_HISM_DATA_WR_FIFO_OVERFLOW		(1<<7)
+/* Host Interrupt Status Mask bit : Data write FIFO underflow */
+#define IF_SPI_HISM_DATA_RD_FIFO_UNDERFLOW		(1<<8)
+/* Host Interrupt Status Mask bit : Command write FIFO overflow */
+#define IF_SPI_HISM_CMD_WR_FIFO_OVERFLOW		(1<<9)
+/* Host Interrupt Status Mask bit : Command write FIFO underflow */
+#define IF_SPI_HISM_CMD_RD_FIFO_UNDERFLOW		(1<<10)
+
+/***************** IF_SPI_SPU_BUS_MODE_REG *****************/
+/* SCK edge on which the WLAN module outputs data on MISO */
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_FALLING 0x8
+#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING 0x0
+
+/* In a SPU read operation, there is a delay between writing the SPU
+ * register name and getting back data from the WLAN module.
+ * This can be specified in terms of nanoseconds or in terms of dummy
+ * clock cycles which the master must output before receiving a response. */
+#define IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK 0x4
+#define IF_SPI_BUS_MODE_DELAY_METHOD_TIMED 0x0
+
+/* Some different modes of SPI operation */
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_16_BIT_DATA 0x00
+#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_32_BIT_DATA 0x01
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA 0x02
+#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_32_BIT_DATA 0x03
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c
new file mode 100644
index 0000000000..2240b4db8c
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_usb.c
@@ -0,0 +1,999 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file contains functions used in USB interface module.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/olpc-ec.h>
+
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+#endif
+
+#define DRV_NAME "usb8xxx"
+
+#include "host.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "cmd.h"
+#include "if_usb.h"
+
+#define INSANEDEBUG	0
+#define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0)
+
+#define MESSAGE_HEADER_LEN	4
+
+MODULE_FIRMWARE("libertas/usb8388_v9.bin");
+MODULE_FIRMWARE("libertas/usb8388_v5.bin");
+MODULE_FIRMWARE("libertas/usb8388.bin");
+MODULE_FIRMWARE("libertas/usb8682.bin");
+MODULE_FIRMWARE("usb8388.bin");
+
+enum {
+	MODEL_UNKNOWN = 0x0,
+	MODEL_8388 = 0x1,
+	MODEL_8682 = 0x2
+};
+
+/* table of firmware file names */
+static const struct lbs_fw_table fw_table[] = {
+	{ MODEL_8388, "libertas/usb8388_olpc.bin", NULL },
+	{ MODEL_8388, "libertas/usb8388_v9.bin", NULL },
+	{ MODEL_8388, "libertas/usb8388_v5.bin", NULL },
+	{ MODEL_8388, "libertas/usb8388.bin", NULL },
+	{ MODEL_8388, "usb8388.bin", NULL },
+	{ MODEL_8682, "libertas/usb8682.bin", NULL },
+	{ 0, NULL, NULL }
+};
+
+static const struct usb_device_id if_usb_table[] = {
+	/* Enter the device signature inside */
+	{ USB_DEVICE(0x1286, 0x2001), .driver_info = MODEL_8388 },
+	{ USB_DEVICE(0x05a3, 0x8388), .driver_info = MODEL_8388 },
+	{}	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, if_usb_table);
+
+static void if_usb_receive(struct urb *urb);
+static void if_usb_receive_fwload(struct urb *urb);
+static void if_usb_prog_firmware(struct lbs_private *priv, int ret,
+				 const struct firmware *fw,
+				 const struct firmware *unused);
+static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
+			       uint8_t *payload, uint16_t nb);
+static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
+			uint16_t nb);
+static void if_usb_free(struct if_usb_card *cardp);
+static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
+static int if_usb_reset_device(struct if_usb_card *cardp);
+
+/**
+ * if_usb_write_bulk_callback - callback function to handle the status
+ * of the URB
+ * @urb:	pointer to &urb structure
+ * returns:	N/A
+ */
+static void if_usb_write_bulk_callback(struct urb *urb)
+{
+	struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
+
+	/* handle the transmission complete validations */
+
+	if (urb->status == 0) {
+		struct lbs_private *priv = cardp->priv;
+
+		lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
+		lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
+			     urb->actual_length);
+
+		/* Boot commands such as UPDATE_FW and UPDATE_BOOT2 are not
+		 * passed up to the lbs level.
+		 */
+		if (priv && priv->dnld_sent != DNLD_BOOTCMD_SENT)
+			lbs_host_to_card_done(priv);
+	} else {
+		/* print the failure status number for debug */
+		pr_info("URB in failure status: %d\n", urb->status);
+	}
+}
+
+/**
+ * if_usb_free - free tx/rx urb, skb and rx buffer
+ * @cardp:	pointer to &if_usb_card
+ * returns:	N/A
+ */
+static void if_usb_free(struct if_usb_card *cardp)
+{
+	/* Unlink tx & rx urb */
+	usb_kill_urb(cardp->tx_urb);
+	usb_kill_urb(cardp->rx_urb);
+
+	usb_free_urb(cardp->tx_urb);
+	cardp->tx_urb = NULL;
+
+	usb_free_urb(cardp->rx_urb);
+	cardp->rx_urb = NULL;
+
+	kfree(cardp->ep_out_buf);
+	cardp->ep_out_buf = NULL;
+}
+
+static void if_usb_setup_firmware(struct lbs_private *priv)
+{
+	struct if_usb_card *cardp = priv->card;
+	struct cmd_ds_set_boot2_ver b2_cmd;
+	struct cmd_ds_802_11_fw_wake_method wake_method;
+
+	b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
+	b2_cmd.action = 0;
+	b2_cmd.version = cardp->boot2_version;
+
+	if (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
+		lbs_deb_usb("Setting boot2 version failed\n");
+
+	priv->wol_gpio = 2; /* Wake via GPIO2... */
+	priv->wol_gap = 20; /* ... after 20ms    */
+	lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA,
+			(struct wol_config *) NULL);
+
+	wake_method.hdr.size = cpu_to_le16(sizeof(wake_method));
+	wake_method.action = cpu_to_le16(CMD_ACT_GET);
+	if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
+		netdev_info(priv->dev, "Firmware does not seem to support PS mode\n");
+		priv->fwcapinfo &= ~FW_CAPINFO_PS;
+	} else {
+		if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
+			lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
+		} else {
+			/* The versions which boot up this way don't seem to
+			   work even if we set it to the command interrupt */
+			priv->fwcapinfo &= ~FW_CAPINFO_PS;
+			netdev_info(priv->dev,
+				    "Firmware doesn't wake via command interrupt; disabling PS mode\n");
+		}
+	}
+}
+
+static void if_usb_fw_timeo(struct timer_list *t)
+{
+	struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout);
+
+	if (cardp->fwdnldover) {
+		lbs_deb_usb("Download complete, no event. Assuming success\n");
+	} else {
+		pr_err("Download timed out\n");
+		cardp->surprise_removed = 1;
+	}
+	wake_up(&cardp->fw_wq);
+}
+
+#ifdef CONFIG_OLPC
+static void if_usb_reset_olpc_card(struct lbs_private *priv)
+{
+	printk(KERN_CRIT "Resetting OLPC wireless via EC...\n");
+	olpc_ec_cmd(0x25, NULL, 0, NULL, 0);
+}
+#endif
+
+/**
+ * if_usb_probe - sets the configuration values
+ * @intf:	&usb_interface pointer
+ * @id:	pointer to usb_device_id
+ * returns:	0 on success, error code on failure
+ */
+static int if_usb_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	struct usb_device *udev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct lbs_private *priv;
+	struct if_usb_card *cardp;
+	int r = -ENOMEM;
+	int i;
+
+	udev = interface_to_usbdev(intf);
+
+	cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
+	if (!cardp)
+		goto error;
+
+	timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0);
+	init_waitqueue_head(&cardp->fw_wq);
+
+	cardp->udev = udev;
+	cardp->model = (uint32_t) id->driver_info;
+	iface_desc = intf->cur_altsetting;
+
+	lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
+		     " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
+		     le16_to_cpu(udev->descriptor.bcdUSB),
+		     udev->descriptor.bDeviceClass,
+		     udev->descriptor.bDeviceSubClass,
+		     udev->descriptor.bDeviceProtocol);
+
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+		if (usb_endpoint_is_bulk_in(endpoint)) {
+			cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize);
+			cardp->ep_in = usb_endpoint_num(endpoint);
+
+			lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in);
+			lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size);
+
+		} else if (usb_endpoint_is_bulk_out(endpoint)) {
+			cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize);
+			cardp->ep_out = usb_endpoint_num(endpoint);
+
+			lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out);
+			lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size);
+		}
+	}
+	if (!cardp->ep_out_size || !cardp->ep_in_size) {
+		lbs_deb_usbd(&udev->dev, "Endpoints not found\n");
+		goto dealloc;
+	}
+	if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
+		lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n");
+		goto dealloc;
+	}
+	if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
+		lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n");
+		goto dealloc;
+	}
+	cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL);
+	if (!cardp->ep_out_buf) {
+		lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n");
+		goto dealloc;
+	}
+
+	priv = lbs_add_card(cardp, &intf->dev);
+	if (IS_ERR(priv)) {
+		r = PTR_ERR(priv);
+		goto err_add_card;
+	}
+
+	cardp->priv = priv;
+
+	priv->hw_host_to_card = if_usb_host_to_card;
+	priv->enter_deep_sleep = NULL;
+	priv->exit_deep_sleep = NULL;
+	priv->reset_deep_sleep_wakeup = NULL;
+	priv->is_polling = false;
+#ifdef CONFIG_OLPC
+	if (machine_is_olpc())
+		priv->reset_card = if_usb_reset_olpc_card;
+#endif
+
+	cardp->boot2_version = udev->descriptor.bcdDevice;
+
+	usb_get_dev(udev);
+	usb_set_intfdata(intf, cardp);
+
+	r = lbs_get_firmware_async(priv, &udev->dev, cardp->model,
+				   fw_table, if_usb_prog_firmware);
+	if (r)
+		goto err_get_fw;
+
+	return 0;
+
+err_get_fw:
+	usb_put_dev(udev);
+	lbs_remove_card(priv);
+err_add_card:
+	if_usb_reset_device(cardp);
+dealloc:
+	if_usb_free(cardp);
+	kfree(cardp);
+
+error:
+	return r;
+}
+
+/**
+ * if_usb_disconnect - free resource and cleanup
+ * @intf:	USB interface structure
+ * returns:	N/A
+ */
+static void if_usb_disconnect(struct usb_interface *intf)
+{
+	struct if_usb_card *cardp = usb_get_intfdata(intf);
+	struct lbs_private *priv = cardp->priv;
+
+	cardp->surprise_removed = 1;
+
+	if (priv) {
+		lbs_stop_card(priv);
+		lbs_remove_card(priv);
+	}
+
+	/* Unlink and free urb */
+	if_usb_free(cardp);
+	kfree(cardp);
+
+	usb_set_intfdata(intf, NULL);
+	usb_put_dev(interface_to_usbdev(intf));
+}
+
+/**
+ * if_usb_send_fw_pkt - download FW
+ * @cardp:	pointer to &struct if_usb_card
+ * returns:	0
+ */
+static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
+{
+	struct fwdata *fwdata = cardp->ep_out_buf;
+	const uint8_t *firmware = cardp->fw->data;
+
+	/* If we got a CRC failure on the last block, back
+	   up and retry it */
+	if (!cardp->CRC_OK) {
+		cardp->totalbytes = cardp->fwlastblksent;
+		cardp->fwseqnum--;
+	}
+
+	lbs_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
+		     cardp->totalbytes);
+
+	/* struct fwdata (which we sent to the card) has an
+	   extra __le32 field in between the header and the data,
+	   which is not in the struct fwheader in the actual
+	   firmware binary. Insert the seqnum in the middle... */
+	memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
+	       sizeof(struct fwheader));
+
+	cardp->fwlastblksent = cardp->totalbytes;
+	cardp->totalbytes += sizeof(struct fwheader);
+
+	memcpy(fwdata->data, &firmware[cardp->totalbytes],
+	       le32_to_cpu(fwdata->hdr.datalength));
+
+	lbs_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
+		     le32_to_cpu(fwdata->hdr.datalength));
+
+	fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
+	cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
+
+	usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
+		     le32_to_cpu(fwdata->hdr.datalength));
+
+	if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
+		lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
+		lbs_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n",
+			     cardp->fwseqnum, cardp->totalbytes);
+	} else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
+		lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n");
+		lbs_deb_usb2(&cardp->udev->dev, "Downloading FW JUMP BLOCK\n");
+
+		cardp->fwfinalblk = 1;
+	}
+
+	lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
+		     cardp->totalbytes);
+
+	return 0;
+}
+
+static int if_usb_reset_device(struct if_usb_card *cardp)
+{
+	struct cmd_header *cmd = cardp->ep_out_buf + 4;
+	int ret;
+
+	*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
+
+	cmd->command = cpu_to_le16(CMD_802_11_RESET);
+	cmd->size = cpu_to_le16(sizeof(cmd));
+	cmd->result = cpu_to_le16(0);
+	cmd->seqnum = cpu_to_le16(0x5a5a);
+	usb_tx_block(cardp, cardp->ep_out_buf, 4 + sizeof(struct cmd_header));
+
+	msleep(100);
+	ret = usb_reset_device(cardp->udev);
+	msleep(100);
+
+#ifdef CONFIG_OLPC
+	if (ret && machine_is_olpc())
+		if_usb_reset_olpc_card(NULL);
+#endif
+
+	return ret;
+}
+
+/**
+ *  usb_tx_block - transfer the data to the device
+ *  @cardp: 	pointer to &struct if_usb_card
+ *  @payload:	pointer to payload data
+ *  @nb:	data length
+ *  returns:	0 for success or negative error code
+ */
+static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb)
+{
+	int ret;
+
+	/* check if device is removed */
+	if (cardp->surprise_removed) {
+		lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
+		ret = -ENODEV;
+		goto tx_ret;
+	}
+
+	usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
+			  usb_sndbulkpipe(cardp->udev,
+					  cardp->ep_out),
+			  payload, nb, if_usb_write_bulk_callback, cardp);
+
+	cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
+
+	if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
+		lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret);
+	} else {
+		lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
+		ret = 0;
+	}
+
+tx_ret:
+	return ret;
+}
+
+static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
+				  void (*callbackfn)(struct urb *urb))
+{
+	struct sk_buff *skb;
+	int ret = -1;
+
+	if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
+		pr_err("No free skb\n");
+		goto rx_ret;
+	}
+
+	cardp->rx_skb = skb;
+
+	/* Fill the receive configuration URB and initialise the Rx call back */
+	usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
+			  usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
+			  skb->data + IPFIELD_ALIGN_OFFSET,
+			  MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
+			  cardp);
+
+	lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
+	if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
+		lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
+		kfree_skb(skb);
+		cardp->rx_skb = NULL;
+		ret = -1;
+	} else {
+		lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
+		ret = 0;
+	}
+
+rx_ret:
+	return ret;
+}
+
+static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
+{
+	return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
+}
+
+static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
+{
+	return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
+}
+
+static void if_usb_receive_fwload(struct urb *urb)
+{
+	struct if_usb_card *cardp = urb->context;
+	struct sk_buff *skb = cardp->rx_skb;
+	struct fwsyncheader *syncfwheader;
+	struct bootcmdresp bootcmdresp;
+
+	if (urb->status) {
+		lbs_deb_usbd(&cardp->udev->dev,
+			     "URB status is failed during fw load\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	if (cardp->fwdnldover) {
+		__le32 *tmp = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET);
+
+		if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) &&
+		    tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) {
+			pr_info("Firmware ready event received\n");
+			wake_up(&cardp->fw_wq);
+		} else {
+			lbs_deb_usb("Waiting for confirmation; got %x %x\n",
+				    le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1]));
+			if_usb_submit_rx_urb_fwload(cardp);
+		}
+		kfree_skb(skb);
+		return;
+	}
+	if (cardp->bootcmdresp <= 0) {
+		memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
+			sizeof(bootcmdresp));
+
+		if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
+			kfree_skb(skb);
+			if_usb_submit_rx_urb_fwload(cardp);
+			cardp->bootcmdresp = BOOT_CMD_RESP_OK;
+			lbs_deb_usbd(&cardp->udev->dev,
+				     "Received valid boot command response\n");
+			return;
+		}
+		if (bootcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
+			if (bootcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
+			    bootcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
+			    bootcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) {
+				if (!cardp->bootcmdresp)
+					pr_info("Firmware already seems alive; resetting\n");
+				cardp->bootcmdresp = -1;
+			} else {
+				pr_info("boot cmd response wrong magic number (0x%x)\n",
+					    le32_to_cpu(bootcmdresp.magic));
+			}
+		} else if ((bootcmdresp.cmd != BOOT_CMD_FW_BY_USB) &&
+			   (bootcmdresp.cmd != BOOT_CMD_UPDATE_FW) &&
+			   (bootcmdresp.cmd != BOOT_CMD_UPDATE_BOOT2)) {
+			pr_info("boot cmd response cmd_tag error (%d)\n",
+				bootcmdresp.cmd);
+		} else if (bootcmdresp.result != BOOT_CMD_RESP_OK) {
+			pr_info("boot cmd response result error (%d)\n",
+				bootcmdresp.result);
+		} else {
+			cardp->bootcmdresp = 1;
+			lbs_deb_usbd(&cardp->udev->dev,
+				     "Received valid boot command response\n");
+		}
+		kfree_skb(skb);
+		if_usb_submit_rx_urb_fwload(cardp);
+		return;
+	}
+
+	syncfwheader = kmemdup(skb->data + IPFIELD_ALIGN_OFFSET,
+			       sizeof(struct fwsyncheader), GFP_ATOMIC);
+	if (!syncfwheader) {
+		lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	if (!syncfwheader->cmd) {
+		lbs_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
+		lbs_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",
+			     le32_to_cpu(syncfwheader->seqnum));
+		cardp->CRC_OK = 1;
+	} else {
+		lbs_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n");
+		cardp->CRC_OK = 0;
+	}
+
+	kfree_skb(skb);
+
+	/* Give device 5s to either write firmware to its RAM or eeprom */
+	mod_timer(&cardp->fw_timeout, jiffies + (HZ*5));
+
+	if (cardp->fwfinalblk) {
+		cardp->fwdnldover = 1;
+		goto exit;
+	}
+
+	if_usb_send_fw_pkt(cardp);
+
+ exit:
+	if_usb_submit_rx_urb_fwload(cardp);
+
+	kfree(syncfwheader);
+}
+
+#define MRVDRV_MIN_PKT_LEN	30
+
+static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
+				       struct if_usb_card *cardp,
+				       struct lbs_private *priv)
+{
+	if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN
+	    || recvlength < MRVDRV_MIN_PKT_LEN) {
+		lbs_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
+	skb_put(skb, recvlength);
+	skb_pull(skb, MESSAGE_HEADER_LEN);
+
+	lbs_process_rxed_packet(priv, skb);
+}
+
+static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
+				      struct sk_buff *skb,
+				      struct if_usb_card *cardp,
+				      struct lbs_private *priv)
+{
+	unsigned long flags;
+	u8 i;
+
+	if (recvlength > LBS_CMD_BUFFER_SIZE) {
+		lbs_deb_usbd(&cardp->udev->dev,
+			     "The receive buffer is too large\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	i = (priv->resp_idx == 0) ? 1 : 0;
+	BUG_ON(priv->resp_len[i]);
+	priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN);
+	memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN,
+		priv->resp_len[i]);
+	dev_kfree_skb_irq(skb);
+	lbs_notify_command_response(priv, i);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	lbs_deb_usbd(&cardp->udev->dev,
+		    "Wake up main thread to handle cmd response\n");
+}
+
+/**
+ *  if_usb_receive - read the packet into the upload buffer,
+ *  wake up the main thread and initialise the Rx callack
+ *
+ *  @urb:	pointer to &struct urb
+ *  returns:	N/A
+ */
+static void if_usb_receive(struct urb *urb)
+{
+	struct if_usb_card *cardp = urb->context;
+	struct sk_buff *skb = cardp->rx_skb;
+	struct lbs_private *priv = cardp->priv;
+	int recvlength = urb->actual_length;
+	uint8_t *recvbuff = NULL;
+	uint32_t recvtype = 0;
+	__le32 *pkt = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET);
+	uint32_t event;
+
+	if (recvlength) {
+		if (urb->status) {
+			lbs_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n",
+				     urb->status);
+			kfree_skb(skb);
+			goto setup_for_next;
+		}
+
+		recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
+		recvtype = le32_to_cpu(pkt[0]);
+		lbs_deb_usbd(&cardp->udev->dev,
+			    "Recv length = 0x%x, Recv type = 0x%X\n",
+			    recvlength, recvtype);
+	} else if (urb->status) {
+		kfree_skb(skb);
+		return;
+	}
+
+	switch (recvtype) {
+	case CMD_TYPE_DATA:
+		process_cmdtypedata(recvlength, skb, cardp, priv);
+		break;
+
+	case CMD_TYPE_REQUEST:
+		process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
+		break;
+
+	case CMD_TYPE_INDICATION:
+		/* Event handling */
+		event = le32_to_cpu(pkt[1]);
+		lbs_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event);
+		kfree_skb(skb);
+
+		/* Icky undocumented magic special case */
+		if (event & 0xffff0000) {
+			u32 trycount = (event & 0xffff0000) >> 16;
+
+			lbs_send_tx_feedback(priv, trycount);
+		} else
+			lbs_queue_event(priv, event & 0xFF);
+		break;
+
+	default:
+		lbs_deb_usbd(&cardp->udev->dev, "Unknown command type 0x%X\n",
+			     recvtype);
+		kfree_skb(skb);
+		break;
+	}
+
+setup_for_next:
+	if_usb_submit_rx_urb(cardp);
+}
+
+/**
+ *  if_usb_host_to_card - downloads data to FW
+ *  @priv:	pointer to &struct lbs_private structure
+ *  @type:	type of data
+ *  @payload:	pointer to data buffer
+ *  @nb:	number of bytes
+ *  returns:	0 for success or negative error code
+ */
+static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
+			       uint8_t *payload, uint16_t nb)
+{
+	struct if_usb_card *cardp = priv->card;
+
+	lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
+	lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
+
+	if (type == MVMS_CMD) {
+		*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
+		priv->dnld_sent = DNLD_CMD_SENT;
+	} else {
+		*(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA);
+		priv->dnld_sent = DNLD_DATA_SENT;
+	}
+
+	memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb);
+
+	return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN);
+}
+
+/**
+ *  if_usb_issue_boot_command - issues Boot command to the Boot2 code
+ *  @cardp:	pointer to &if_usb_card
+ *  @ivalue:	1:Boot from FW by USB-Download
+ *		2:Boot from FW in EEPROM
+ *  returns:	0 for success or negative error code
+ */
+static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue)
+{
+	struct bootcmd *bootcmd = cardp->ep_out_buf;
+
+	/* Prepare command */
+	bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
+	bootcmd->cmd = ivalue;
+	memset(bootcmd->pad, 0, sizeof(bootcmd->pad));
+
+	/* Issue command */
+	usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd));
+
+	return 0;
+}
+
+
+/**
+ *  check_fwfile_format - check the validity of Boot2/FW image
+ *
+ *  @data:	pointer to image
+ *  @totlen:	image length
+ *  returns:     0 (good) or 1 (failure)
+ */
+static int check_fwfile_format(const uint8_t *data, uint32_t totlen)
+{
+	uint32_t bincmd, exit;
+	uint32_t blksize, offset, len;
+	int ret;
+
+	ret = 1;
+	exit = len = 0;
+
+	do {
+		struct fwheader *fwh = (void *)data;
+
+		bincmd = le32_to_cpu(fwh->dnldcmd);
+		blksize = le32_to_cpu(fwh->datalength);
+		switch (bincmd) {
+		case FW_HAS_DATA_TO_RECV:
+			offset = sizeof(struct fwheader) + blksize;
+			data += offset;
+			len += offset;
+			if (len >= totlen)
+				exit = 1;
+			break;
+		case FW_HAS_LAST_BLOCK:
+			exit = 1;
+			ret = 0;
+			break;
+		default:
+			exit = 1;
+			break;
+		}
+	} while (!exit);
+
+	if (ret)
+		pr_err("firmware file format check FAIL\n");
+	else
+		lbs_deb_fw("firmware file format check PASS\n");
+
+	return ret;
+}
+
+static void if_usb_prog_firmware(struct lbs_private *priv, int ret,
+				 const struct firmware *fw,
+				 const struct firmware *unused)
+{
+	struct if_usb_card *cardp = priv->card;
+	int i = 0;
+	static int reset_count = 10;
+
+	if (ret) {
+		pr_err("failed to find firmware (%d)\n", ret);
+		goto done;
+	}
+
+	cardp->fw = fw;
+	if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	/* Cancel any pending usb business */
+	usb_kill_urb(cardp->rx_urb);
+	usb_kill_urb(cardp->tx_urb);
+
+	cardp->fwlastblksent = 0;
+	cardp->fwdnldover = 0;
+	cardp->totalbytes = 0;
+	cardp->fwfinalblk = 0;
+	cardp->bootcmdresp = 0;
+
+restart:
+	if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
+		lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
+		ret = -EIO;
+		goto done;
+	}
+
+	cardp->bootcmdresp = 0;
+	do {
+		int j = 0;
+		i++;
+		if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB);
+		/* wait for command response */
+		do {
+			j++;
+			msleep_interruptible(100);
+		} while (cardp->bootcmdresp == 0 && j < 10);
+	} while (cardp->bootcmdresp == 0 && i < 5);
+
+	if (cardp->bootcmdresp == BOOT_CMD_RESP_NOT_SUPPORTED) {
+		/* Return to normal operation */
+		ret = -EOPNOTSUPP;
+		usb_kill_urb(cardp->rx_urb);
+		usb_kill_urb(cardp->tx_urb);
+		if (if_usb_submit_rx_urb(cardp) < 0)
+			ret = -EIO;
+		goto done;
+	} else if (cardp->bootcmdresp <= 0) {
+		if (--reset_count >= 0) {
+			if_usb_reset_device(cardp);
+			goto restart;
+		}
+		ret = -EIO;
+		goto done;
+	}
+
+	i = 0;
+
+	cardp->totalbytes = 0;
+	cardp->fwlastblksent = 0;
+	cardp->CRC_OK = 1;
+	cardp->fwdnldover = 0;
+	cardp->fwseqnum = -1;
+	cardp->totalbytes = 0;
+	cardp->fwfinalblk = 0;
+
+	/* Send the first firmware packet... */
+	if_usb_send_fw_pkt(cardp);
+
+	/* ... and wait for the process to complete */
+	wait_event_interruptible(cardp->fw_wq, cardp->surprise_removed || cardp->fwdnldover);
+
+	del_timer_sync(&cardp->fw_timeout);
+	usb_kill_urb(cardp->rx_urb);
+
+	if (!cardp->fwdnldover) {
+		pr_info("failed to load fw, resetting device!\n");
+		if (--reset_count >= 0) {
+			if_usb_reset_device(cardp);
+			goto restart;
+		}
+
+		pr_info("FW download failure, time = %d ms\n", i * 100);
+		ret = -EIO;
+		goto done;
+	}
+
+	cardp->priv->fw_ready = 1;
+	if_usb_submit_rx_urb(cardp);
+
+	if (lbs_start_card(priv))
+		goto done;
+
+	if_usb_setup_firmware(priv);
+
+	/*
+	 * EHS_REMOVE_WAKEUP is not supported on all versions of the firmware.
+	 */
+	priv->wol_criteria = EHS_REMOVE_WAKEUP;
+	if (lbs_host_sleep_cfg(priv, priv->wol_criteria, NULL))
+		priv->ehs_remove_supported = false;
+
+ done:
+	cardp->fw = NULL;
+}
+
+
+#ifdef CONFIG_PM
+static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct if_usb_card *cardp = usb_get_intfdata(intf);
+	struct lbs_private *priv = cardp->priv;
+	int ret;
+
+	if (priv->psstate != PS_STATE_FULL_POWER) {
+		ret = -1;
+		goto out;
+	}
+
+#ifdef CONFIG_OLPC
+	if (machine_is_olpc()) {
+		if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
+			olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN);
+		else
+			olpc_ec_wakeup_set(EC_SCI_SRC_WLAN);
+	}
+#endif
+
+	ret = lbs_suspend(priv);
+	if (ret)
+		goto out;
+
+	/* Unlink tx & rx urb */
+	usb_kill_urb(cardp->tx_urb);
+	usb_kill_urb(cardp->rx_urb);
+
+ out:
+	return ret;
+}
+
+static int if_usb_resume(struct usb_interface *intf)
+{
+	struct if_usb_card *cardp = usb_get_intfdata(intf);
+	struct lbs_private *priv = cardp->priv;
+
+	if_usb_submit_rx_urb(cardp);
+
+	lbs_resume(priv);
+
+	return 0;
+}
+#else
+#define if_usb_suspend NULL
+#define if_usb_resume NULL
+#endif
+
+static struct usb_driver if_usb_driver = {
+	.name = DRV_NAME,
+	.probe = if_usb_probe,
+	.disconnect = if_usb_disconnect,
+	.id_table = if_usb_table,
+	.suspend = if_usb_suspend,
+	.resume = if_usb_resume,
+	.reset_resume = if_usb_resume,
+	.disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(if_usb_driver);
+
+MODULE_DESCRIPTION("8388 USB WLAN Driver");
+MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/marvell/libertas/if_usb.h b/drivers/net/wireless/marvell/libertas/if_usb.h
new file mode 100644
index 0000000000..7d0daeb33c
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/if_usb.h
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LBS_IF_USB_H
+#define _LBS_IF_USB_H
+
+#include <linux/wait.h>
+#include <linux/timer.h>
+
+struct lbs_private;
+
+/*
+ * This file contains definition for USB interface.
+ */
+#define CMD_TYPE_REQUEST		0xF00DFACE
+#define CMD_TYPE_DATA			0xBEADC0DE
+#define CMD_TYPE_INDICATION		0xBEEFFACE
+
+#define IPFIELD_ALIGN_OFFSET		2
+
+#define BOOT_CMD_FW_BY_USB		0x01
+#define BOOT_CMD_FW_IN_EEPROM		0x02
+#define BOOT_CMD_UPDATE_BOOT2		0x03
+#define BOOT_CMD_UPDATE_FW		0x04
+#define BOOT_CMD_MAGIC_NUMBER		0x4C56524D   /* LVRM */
+
+struct bootcmd
+{
+	__le32	magic;
+	uint8_t	cmd;
+	uint8_t	pad[11];
+};
+
+#define BOOT_CMD_RESP_OK		0x0001
+#define BOOT_CMD_RESP_FAIL		0x0000
+#define BOOT_CMD_RESP_NOT_SUPPORTED	0x0002
+
+struct bootcmdresp
+{
+	__le32	magic;
+	uint8_t	cmd;
+	uint8_t	result;
+	uint8_t	pad[2];
+};
+
+/* USB card description structure*/
+struct if_usb_card {
+	struct usb_device *udev;
+	uint32_t model;  /* MODEL_* */
+	struct urb *rx_urb, *tx_urb;
+	struct lbs_private *priv;
+
+	struct sk_buff *rx_skb;
+
+	uint8_t ep_in;
+	uint8_t ep_out;
+
+	/* bootcmdresp == 0 means command is pending
+	 * bootcmdresp < 0 means error
+	 * bootcmdresp > 0 is a BOOT_CMD_RESP_* from firmware
+	 */
+	int8_t bootcmdresp;
+
+	int ep_in_size;
+
+	void *ep_out_buf;
+	int ep_out_size;
+
+	const struct firmware *fw;
+	struct timer_list fw_timeout;
+	wait_queue_head_t fw_wq;
+	uint32_t fwseqnum;
+	uint32_t totalbytes;
+	uint32_t fwlastblksent;
+	uint8_t CRC_OK;
+	uint8_t fwdnldover;
+	uint8_t fwfinalblk;
+	uint8_t surprise_removed;
+
+	__le16 boot2_version;
+};
+
+/* fwheader */
+struct fwheader {
+	__le32 dnldcmd;
+	__le32 baseaddr;
+	__le32 datalength;
+	__le32 CRC;
+};
+
+#define FW_MAX_DATA_BLK_SIZE	600
+/* FWData */
+struct fwdata {
+	struct fwheader hdr;
+	__le32 seqnum;
+	uint8_t data[];
+};
+
+/* fwsyncheader */
+struct fwsyncheader {
+	__le32 cmd;
+	__le32 seqnum;
+};
+
+#define FW_HAS_DATA_TO_RECV		0x00000001
+#define FW_HAS_LAST_BLOCK		0x00000004
+
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/main.c b/drivers/net/wireless/marvell/libertas/main.c
new file mode 100644
index 0000000000..78e8b5aece
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/main.c
@@ -0,0 +1,1156 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file contains the major functions in WLAN
+ * driver. It includes init, exit, open, close and main
+ * thread etc..
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/hardirq.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/kthread.h>
+#include <linux/kfifo.h>
+#include <linux/slab.h>
+#include <net/cfg80211.h>
+
+#include "host.h"
+#include "decl.h"
+#include "dev.h"
+#include "cfg.h"
+#include "debugfs.h"
+#include "cmd.h"
+#include "mesh.h"
+
+#define DRIVER_RELEASE_VERSION "323.p0"
+const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
+#ifdef  DEBUG
+    "-dbg"
+#endif
+    "";
+
+
+/* Module parameters */
+unsigned int lbs_debug;
+EXPORT_SYMBOL_GPL(lbs_debug);
+module_param_named(libertas_debug, lbs_debug, int, 0644);
+
+static unsigned int lbs_disablemesh;
+module_param_named(libertas_disablemesh, lbs_disablemesh, int, 0644);
+
+
+/*
+ * This global structure is used to send the confirm_sleep command as
+ * fast as possible down to the firmware.
+ */
+struct cmd_confirm_sleep confirm_sleep;
+
+
+/*
+ * the table to keep region code
+ */
+u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
+    { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
+
+/*
+ * FW rate table.  FW refers to rates by their index in this table, not by the
+ * rate value itself.  Values of 0x00 are
+ * reserved positions.
+ */
+static u8 fw_data_rates[MAX_RATES] =
+    { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
+      0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
+};
+
+/**
+ *  lbs_fw_index_to_data_rate - use index to get the data rate
+ *
+ *  @idx:	The index of data rate
+ *  returns:	data rate or 0
+ */
+u32 lbs_fw_index_to_data_rate(u8 idx)
+{
+	if (idx >= sizeof(fw_data_rates))
+		idx = 0;
+	return fw_data_rates[idx];
+}
+
+/**
+ *  lbs_data_rate_to_fw_index - use rate to get the index
+ *
+ *  @rate:	data rate
+ *  returns:	index or 0
+ */
+u8 lbs_data_rate_to_fw_index(u32 rate)
+{
+	u8 i;
+
+	if (!rate)
+		return 0;
+
+	for (i = 0; i < sizeof(fw_data_rates); i++) {
+		if (rate == fw_data_rates[i])
+			return i;
+	}
+	return 0;
+}
+
+int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type)
+{
+	int ret = 0;
+
+	switch (type) {
+	case NL80211_IFTYPE_MONITOR:
+		ret = lbs_set_monitor_mode(priv, 1);
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
+			ret = lbs_set_monitor_mode(priv, 0);
+		if (!ret)
+			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
+			ret = lbs_set_monitor_mode(priv, 0);
+		if (!ret)
+			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
+		break;
+	default:
+		ret = -ENOTSUPP;
+	}
+	return ret;
+}
+
+int lbs_start_iface(struct lbs_private *priv)
+{
+	struct cmd_ds_802_11_mac_address cmd;
+	int ret;
+
+	if (priv->power_restore) {
+		ret = priv->power_restore(priv);
+		if (ret)
+			return ret;
+	}
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	memcpy(cmd.macadd, priv->current_addr, ETH_ALEN);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd);
+	if (ret) {
+		lbs_deb_net("set MAC address failed\n");
+		goto err;
+	}
+
+	ret = lbs_set_iface_type(priv, priv->wdev->iftype);
+	if (ret) {
+		lbs_deb_net("set iface type failed\n");
+		goto err;
+	}
+
+	ret = lbs_set_11d_domain_info(priv);
+	if (ret) {
+		lbs_deb_net("set 11d domain info failed\n");
+		goto err;
+	}
+
+	lbs_update_channel(priv);
+
+	priv->iface_running = true;
+	return 0;
+
+err:
+	if (priv->power_save)
+		priv->power_save(priv);
+	return ret;
+}
+
+/**
+ *  lbs_dev_open - open the ethX interface
+ *
+ *  @dev:	A pointer to &net_device structure
+ *  returns:	0 or -EBUSY if monitor mode active
+ */
+static int lbs_dev_open(struct net_device *dev)
+{
+	struct lbs_private *priv = dev->ml_priv;
+	int ret = 0;
+
+	if (!priv->iface_running) {
+		ret = lbs_start_iface(priv);
+		if (ret)
+			goto out;
+	}
+
+	spin_lock_irq(&priv->driver_lock);
+
+	netif_carrier_off(dev);
+
+	if (!priv->tx_pending_len)
+		netif_wake_queue(dev);
+
+	spin_unlock_irq(&priv->driver_lock);
+
+out:
+	return ret;
+}
+
+static bool lbs_command_queue_empty(struct lbs_private *priv)
+{
+	unsigned long flags;
+	bool ret;
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	return ret;
+}
+
+int lbs_stop_iface(struct lbs_private *priv)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->iface_running = false;
+	dev_kfree_skb_irq(priv->currenttxskb);
+	priv->currenttxskb = NULL;
+	priv->tx_pending_len = 0;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	cancel_work_sync(&priv->mcast_work);
+	del_timer_sync(&priv->tx_lockup_timer);
+
+	/* Disable command processing, and wait for all commands to complete */
+	lbs_deb_main("waiting for commands to complete\n");
+	wait_event(priv->waitq, lbs_command_queue_empty(priv));
+	lbs_deb_main("all commands completed\n");
+
+	if (priv->power_save)
+		ret = priv->power_save(priv);
+
+	return ret;
+}
+
+/**
+ *  lbs_eth_stop - close the ethX interface
+ *
+ *  @dev:	A pointer to &net_device structure
+ *  returns:	0
+ */
+static int lbs_eth_stop(struct net_device *dev)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	if (priv->connect_status == LBS_CONNECTED)
+		lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING);
+
+	spin_lock_irq(&priv->driver_lock);
+	netif_stop_queue(dev);
+	spin_unlock_irq(&priv->driver_lock);
+
+	lbs_update_mcast(priv);
+	cancel_delayed_work_sync(&priv->scan_work);
+	if (priv->scan_req)
+		lbs_scan_done(priv);
+
+	netif_carrier_off(priv->dev);
+
+	if (!lbs_iface_active(priv))
+		lbs_stop_iface(priv);
+
+	return 0;
+}
+
+void lbs_host_to_card_done(struct lbs_private *priv)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	del_timer(&priv->tx_lockup_timer);
+
+	priv->dnld_sent = DNLD_RES_RECEIVED;
+
+	/* Wake main thread if commands are pending */
+	if (!priv->cur_cmd || priv->tx_pending_len > 0) {
+		if (!priv->wakeup_dev_required)
+			wake_up(&priv->waitq);
+	}
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
+
+int lbs_set_mac_address(struct net_device *dev, void *addr)
+{
+	int ret = 0;
+	struct lbs_private *priv = dev->ml_priv;
+	struct sockaddr *phwaddr = addr;
+
+	/*
+	 * Can only set MAC address when all interfaces are down, to be written
+	 * to the hardware when one of them is brought up.
+	 */
+	if (lbs_iface_active(priv))
+		return -EBUSY;
+
+	/* In case it was called from the mesh device */
+	dev = priv->dev;
+
+	memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
+	eth_hw_addr_set(dev, phwaddr->sa_data);
+	if (priv->mesh_dev)
+		eth_hw_addr_set(priv->mesh_dev, phwaddr->sa_data);
+
+	return ret;
+}
+
+
+static inline int mac_in_list(unsigned char *list, int list_len,
+			      unsigned char *mac)
+{
+	while (list_len) {
+		if (!memcmp(list, mac, ETH_ALEN))
+			return 1;
+		list += ETH_ALEN;
+		list_len--;
+	}
+	return 0;
+}
+
+
+static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd,
+			       struct net_device *dev, int nr_addrs)
+{
+	int i = nr_addrs;
+	struct netdev_hw_addr *ha;
+	int cnt;
+
+	if ((dev->flags & (IFF_UP|IFF_MULTICAST)) != (IFF_UP|IFF_MULTICAST))
+		return nr_addrs;
+
+	netif_addr_lock_bh(dev);
+	cnt = netdev_mc_count(dev);
+	netdev_for_each_mc_addr(ha, dev) {
+		if (mac_in_list(cmd->maclist, nr_addrs, ha->addr)) {
+			lbs_deb_net("mcast address %s:%pM skipped\n", dev->name,
+				    ha->addr);
+			cnt--;
+			continue;
+		}
+
+		if (i == MRVDRV_MAX_MULTICAST_LIST_SIZE)
+			break;
+		memcpy(&cmd->maclist[6*i], ha->addr, ETH_ALEN);
+		lbs_deb_net("mcast address %s:%pM added to filter\n", dev->name,
+			    ha->addr);
+		i++;
+		cnt--;
+	}
+	netif_addr_unlock_bh(dev);
+	if (cnt)
+		return -EOVERFLOW;
+
+	return i;
+}
+
+void lbs_update_mcast(struct lbs_private *priv)
+{
+	struct cmd_ds_mac_multicast_adr mcast_cmd;
+	int dev_flags = 0;
+	int nr_addrs;
+	int old_mac_control = priv->mac_control;
+
+	if (netif_running(priv->dev))
+		dev_flags |= priv->dev->flags;
+	if (priv->mesh_dev && netif_running(priv->mesh_dev))
+		dev_flags |= priv->mesh_dev->flags;
+
+	if (dev_flags & IFF_PROMISC) {
+		priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE;
+		priv->mac_control &= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
+				       CMD_ACT_MAC_MULTICAST_ENABLE);
+		goto out_set_mac_control;
+	} else if (dev_flags & IFF_ALLMULTI) {
+	do_allmulti:
+		priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
+		priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
+				       CMD_ACT_MAC_MULTICAST_ENABLE);
+		goto out_set_mac_control;
+	}
+
+	/* Once for priv->dev, again for priv->mesh_dev if it exists */
+	nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->dev, 0);
+	if (nr_addrs >= 0 && priv->mesh_dev)
+		nr_addrs = lbs_add_mcast_addrs(&mcast_cmd, priv->mesh_dev, nr_addrs);
+	if (nr_addrs < 0)
+		goto do_allmulti;
+
+	if (nr_addrs) {
+		int size = offsetof(struct cmd_ds_mac_multicast_adr,
+				    maclist[6*nr_addrs]);
+
+		mcast_cmd.action = cpu_to_le16(CMD_ACT_SET);
+		mcast_cmd.hdr.size = cpu_to_le16(size);
+		mcast_cmd.nr_of_adrs = cpu_to_le16(nr_addrs);
+
+		lbs_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &mcast_cmd.hdr, size);
+
+		priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
+	} else
+		priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
+
+	priv->mac_control &= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE |
+			       CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
+ out_set_mac_control:
+	if (priv->mac_control != old_mac_control)
+		lbs_set_mac_control(priv);
+}
+
+static void lbs_set_mcast_worker(struct work_struct *work)
+{
+	struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work);
+	lbs_update_mcast(priv);
+}
+
+void lbs_set_multicast_list(struct net_device *dev)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	schedule_work(&priv->mcast_work);
+}
+
+/**
+ *  lbs_thread - handles the major jobs in the LBS driver.
+ *  It handles all events generated by firmware, RX data received
+ *  from firmware and TX data sent from kernel.
+ *
+ *  @data:	A pointer to &lbs_thread structure
+ *  returns:	0
+ */
+static int lbs_thread(void *data)
+{
+	struct net_device *dev = data;
+	struct lbs_private *priv = dev->ml_priv;
+	wait_queue_entry_t wait;
+
+	init_waitqueue_entry(&wait, current);
+
+	for (;;) {
+		int shouldsleep;
+		u8 resp_idx;
+
+		lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
+				priv->currenttxskb, priv->dnld_sent);
+
+		add_wait_queue(&priv->waitq, &wait);
+		set_current_state(TASK_INTERRUPTIBLE);
+		spin_lock_irq(&priv->driver_lock);
+
+		if (kthread_should_stop())
+			shouldsleep = 0;	/* Bye */
+		else if (priv->surpriseremoved)
+			shouldsleep = 1;	/* We need to wait until we're _told_ to die */
+		else if (priv->psstate == PS_STATE_SLEEP)
+			shouldsleep = 1;	/* Sleep mode. Nothing we can do till it wakes */
+		else if (priv->cmd_timed_out)
+			shouldsleep = 0;	/* Command timed out. Recover */
+		else if (!priv->fw_ready)
+			shouldsleep = 1;	/* Firmware not ready. We're waiting for it */
+		else if (priv->dnld_sent)
+			shouldsleep = 1;	/* Something is en route to the device already */
+		else if (priv->tx_pending_len > 0)
+			shouldsleep = 0;	/* We've a packet to send */
+		else if (priv->resp_len[priv->resp_idx])
+			shouldsleep = 0;	/* We have a command response */
+		else if (priv->cur_cmd)
+			shouldsleep = 1;	/* Can't send a command; one already running */
+		else if (!list_empty(&priv->cmdpendingq) &&
+					!(priv->wakeup_dev_required))
+			shouldsleep = 0;	/* We have a command to send */
+		else if (kfifo_len(&priv->event_fifo))
+			shouldsleep = 0;	/* We have an event to process */
+		else
+			shouldsleep = 1;	/* No command */
+
+		if (shouldsleep) {
+			lbs_deb_thread("sleeping, connect_status %d, "
+				"psmode %d, psstate %d\n",
+				priv->connect_status,
+				priv->psmode, priv->psstate);
+			spin_unlock_irq(&priv->driver_lock);
+			schedule();
+		} else
+			spin_unlock_irq(&priv->driver_lock);
+
+		lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
+			       priv->currenttxskb, priv->dnld_sent);
+
+		set_current_state(TASK_RUNNING);
+		remove_wait_queue(&priv->waitq, &wait);
+
+		lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
+			       priv->currenttxskb, priv->dnld_sent);
+
+		if (kthread_should_stop()) {
+			lbs_deb_thread("break from main thread\n");
+			break;
+		}
+
+		if (priv->surpriseremoved) {
+			lbs_deb_thread("adapter removed; waiting to die...\n");
+			continue;
+		}
+
+		lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
+		       priv->currenttxskb, priv->dnld_sent);
+
+		/* Process any pending command response */
+		spin_lock_irq(&priv->driver_lock);
+		resp_idx = priv->resp_idx;
+		if (priv->resp_len[resp_idx]) {
+			spin_unlock_irq(&priv->driver_lock);
+			lbs_process_command_response(priv,
+				priv->resp_buf[resp_idx],
+				priv->resp_len[resp_idx]);
+			spin_lock_irq(&priv->driver_lock);
+			priv->resp_len[resp_idx] = 0;
+		}
+		spin_unlock_irq(&priv->driver_lock);
+
+		/* Process hardware events, e.g. card removed, link lost */
+		spin_lock_irq(&priv->driver_lock);
+		while (kfifo_len(&priv->event_fifo)) {
+			u32 event;
+
+			if (kfifo_out(&priv->event_fifo,
+				(unsigned char *) &event, sizeof(event)) !=
+				sizeof(event))
+					break;
+			spin_unlock_irq(&priv->driver_lock);
+			lbs_process_event(priv, event);
+			spin_lock_irq(&priv->driver_lock);
+		}
+		spin_unlock_irq(&priv->driver_lock);
+
+		if (priv->wakeup_dev_required) {
+			lbs_deb_thread("Waking up device...\n");
+			/* Wake up device */
+			if (priv->exit_deep_sleep(priv))
+				lbs_deb_thread("Wakeup device failed\n");
+			continue;
+		}
+
+		/* command timeout stuff */
+		if (priv->cmd_timed_out && priv->cur_cmd) {
+			struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
+
+			netdev_info(dev, "Timeout submitting command 0x%04x\n",
+				    le16_to_cpu(cmdnode->cmdbuf->command));
+			lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
+
+			/* Reset card, but only when it isn't in the process
+			 * of being shutdown anyway. */
+			if (!dev->dismantle && priv->reset_card)
+				priv->reset_card(priv);
+		}
+		priv->cmd_timed_out = 0;
+
+		if (!priv->fw_ready)
+			continue;
+
+		/* Check if we need to confirm Sleep Request received previously */
+		if (priv->psstate == PS_STATE_PRE_SLEEP &&
+		    !priv->dnld_sent && !priv->cur_cmd) {
+			if (priv->connect_status == LBS_CONNECTED) {
+				lbs_deb_thread("pre-sleep, currenttxskb %p, "
+					"dnld_sent %d, cur_cmd %p\n",
+					priv->currenttxskb, priv->dnld_sent,
+					priv->cur_cmd);
+
+				lbs_ps_confirm_sleep(priv);
+			} else {
+				/* workaround for firmware sending
+				 * deauth/linkloss event immediately
+				 * after sleep request; remove this
+				 * after firmware fixes it
+				 */
+				priv->psstate = PS_STATE_AWAKE;
+				netdev_alert(dev,
+					     "ignore PS_SleepConfirm in non-connected state\n");
+			}
+		}
+
+		/* The PS state is changed during processing of Sleep Request
+		 * event above
+		 */
+		if ((priv->psstate == PS_STATE_SLEEP) ||
+		    (priv->psstate == PS_STATE_PRE_SLEEP))
+			continue;
+
+		if (priv->is_deep_sleep)
+			continue;
+
+		/* Execute the next command */
+		if (!priv->dnld_sent && !priv->cur_cmd)
+			lbs_execute_next_command(priv);
+
+		spin_lock_irq(&priv->driver_lock);
+		if (!priv->dnld_sent && priv->tx_pending_len > 0) {
+			int ret = priv->hw_host_to_card(priv, MVMS_DAT,
+							priv->tx_pending_buf,
+							priv->tx_pending_len);
+			if (ret) {
+				lbs_deb_tx("host_to_card failed %d\n", ret);
+				priv->dnld_sent = DNLD_RES_RECEIVED;
+			} else {
+				mod_timer(&priv->tx_lockup_timer,
+					  jiffies + (HZ * 5));
+			}
+			priv->tx_pending_len = 0;
+			if (!priv->currenttxskb) {
+				/* We can wake the queues immediately if we aren't
+				   waiting for TX feedback */
+				if (priv->connect_status == LBS_CONNECTED)
+					netif_wake_queue(priv->dev);
+				if (priv->mesh_dev &&
+				    netif_running(priv->mesh_dev))
+					netif_wake_queue(priv->mesh_dev);
+			}
+		}
+		spin_unlock_irq(&priv->driver_lock);
+	}
+
+	del_timer(&priv->command_timer);
+	del_timer(&priv->tx_lockup_timer);
+	del_timer(&priv->auto_deepsleep_timer);
+
+	return 0;
+}
+
+/**
+ * lbs_setup_firmware - gets the HW spec from the firmware and sets
+ *        some basic parameters
+ *
+ *  @priv:	A pointer to &struct lbs_private structure
+ *  returns:	0 or -1
+ */
+static int lbs_setup_firmware(struct lbs_private *priv)
+{
+	int ret = -1;
+	s16 curlevel = 0, minlevel = 0, maxlevel = 0;
+
+	/* Read MAC address from firmware */
+	eth_broadcast_addr(priv->current_addr);
+	ret = lbs_update_hw_spec(priv);
+	if (ret)
+		goto done;
+
+	/* Read power levels if available */
+	ret = lbs_get_tx_power(priv, &curlevel, &minlevel, &maxlevel);
+	if (ret == 0) {
+		priv->txpower_cur = curlevel;
+		priv->txpower_min = minlevel;
+		priv->txpower_max = maxlevel;
+	}
+
+	/* Send cmd to FW to enable 11D function */
+	ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1);
+	if (ret)
+		goto done;
+
+	ret = lbs_set_mac_control_sync(priv);
+done:
+	return ret;
+}
+
+int lbs_suspend(struct lbs_private *priv)
+{
+	int ret;
+
+	if (priv->is_deep_sleep) {
+		ret = lbs_set_deep_sleep(priv, 0);
+		if (ret) {
+			netdev_err(priv->dev,
+				   "deep sleep cancellation failed: %d\n", ret);
+			return ret;
+		}
+		priv->deep_sleep_required = 1;
+	}
+
+	ret = lbs_set_host_sleep(priv, 1);
+
+	netif_device_detach(priv->dev);
+	if (priv->mesh_dev)
+		netif_device_detach(priv->mesh_dev);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_suspend);
+
+int lbs_resume(struct lbs_private *priv)
+{
+	int ret;
+
+	ret = lbs_set_host_sleep(priv, 0);
+
+	netif_device_attach(priv->dev);
+	if (priv->mesh_dev)
+		netif_device_attach(priv->mesh_dev);
+
+	if (priv->deep_sleep_required) {
+		priv->deep_sleep_required = 0;
+		ret = lbs_set_deep_sleep(priv, 1);
+		if (ret)
+			netdev_err(priv->dev,
+				   "deep sleep activation failed: %d\n", ret);
+	}
+
+	if (priv->setup_fw_on_resume)
+		ret = lbs_setup_firmware(priv);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_resume);
+
+/**
+ * lbs_cmd_timeout_handler - handles the timeout of command sending.
+ * It will re-send the same command again.
+ *
+ * @t: Context from which to retrieve a &struct lbs_private pointer
+ */
+static void lbs_cmd_timeout_handler(struct timer_list *t)
+{
+	struct lbs_private *priv = from_timer(priv, t, command_timer);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (!priv->cur_cmd)
+		goto out;
+
+	netdev_info(priv->dev, "command 0x%04x timed out\n",
+		    le16_to_cpu(priv->cur_cmd->cmdbuf->command));
+
+	priv->cmd_timed_out = 1;
+
+	/*
+	 * If the device didn't even acknowledge the command, reset the state
+	 * so that we don't block all future commands due to this one timeout.
+	 */
+	if (priv->dnld_sent == DNLD_CMD_SENT)
+		priv->dnld_sent = DNLD_RES_RECEIVED;
+
+	wake_up(&priv->waitq);
+out:
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+/**
+ * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames
+ * to the hardware. This is known to frequently happen with SD8686 when
+ * waking up after a Wake-on-WLAN-triggered resume.
+ *
+ * @t: Context from which to retrieve a &struct lbs_private pointer
+ */
+static void lbs_tx_lockup_handler(struct timer_list *t)
+{
+	struct lbs_private *priv = from_timer(priv, t, tx_lockup_timer);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	netdev_info(priv->dev, "TX lockup detected\n");
+	if (priv->reset_card)
+		priv->reset_card(priv);
+
+	priv->dnld_sent = DNLD_RES_RECEIVED;
+	wake_up_interruptible(&priv->waitq);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+
+/**
+ * auto_deepsleep_timer_fn - put the device back to deep sleep mode when
+ * timer expires and no activity (command, event, data etc.) is detected.
+ * @t: Context from which to retrieve a &struct lbs_private pointer
+ * returns:	N/A
+ */
+static void auto_deepsleep_timer_fn(struct timer_list *t)
+{
+	struct lbs_private *priv = from_timer(priv, t, auto_deepsleep_timer);
+
+	if (priv->is_activity_detected) {
+		priv->is_activity_detected = 0;
+	} else {
+		if (priv->is_auto_deep_sleep_enabled &&
+		    (!priv->wakeup_dev_required) &&
+		    (priv->connect_status != LBS_CONNECTED)) {
+			struct cmd_header cmd;
+
+			lbs_deb_main("Entering auto deep sleep mode...\n");
+			memset(&cmd, 0, sizeof(cmd));
+			cmd.size = cpu_to_le16(sizeof(cmd));
+			lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd,
+					sizeof(cmd));
+		}
+	}
+	mod_timer(&priv->auto_deepsleep_timer , jiffies +
+				(priv->auto_deep_sleep_timeout * HZ)/1000);
+}
+
+int lbs_enter_auto_deep_sleep(struct lbs_private *priv)
+{
+	priv->is_auto_deep_sleep_enabled = 1;
+	if (priv->is_deep_sleep)
+		priv->wakeup_dev_required = 1;
+	mod_timer(&priv->auto_deepsleep_timer ,
+			jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000);
+
+	return 0;
+}
+
+int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
+{
+	priv->is_auto_deep_sleep_enabled = 0;
+	priv->auto_deep_sleep_timeout = 0;
+	del_timer(&priv->auto_deepsleep_timer);
+
+	return 0;
+}
+
+static int lbs_init_adapter(struct lbs_private *priv)
+{
+	int ret;
+
+	eth_broadcast_addr(priv->current_addr);
+
+	priv->connect_status = LBS_DISCONNECTED;
+	priv->channel = DEFAULT_AD_HOC_CHANNEL;
+	priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
+	priv->radio_on = 1;
+	priv->psmode = LBS802_11POWERMODECAM;
+	priv->psstate = PS_STATE_FULL_POWER;
+	priv->is_deep_sleep = 0;
+	priv->is_auto_deep_sleep_enabled = 0;
+	priv->deep_sleep_required = 0;
+	priv->wakeup_dev_required = 0;
+	init_waitqueue_head(&priv->ds_awake_q);
+	init_waitqueue_head(&priv->scan_q);
+	priv->authtype_auto = 1;
+	priv->is_host_sleep_configured = 0;
+	priv->is_host_sleep_activated = 0;
+	init_waitqueue_head(&priv->host_sleep_q);
+	init_waitqueue_head(&priv->fw_waitq);
+	mutex_init(&priv->lock);
+
+	timer_setup(&priv->command_timer, lbs_cmd_timeout_handler, 0);
+	timer_setup(&priv->tx_lockup_timer, lbs_tx_lockup_handler, 0);
+	timer_setup(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, 0);
+
+	INIT_LIST_HEAD(&priv->cmdfreeq);
+	INIT_LIST_HEAD(&priv->cmdpendingq);
+
+	spin_lock_init(&priv->driver_lock);
+
+	/* Allocate the command buffers */
+	if (lbs_allocate_cmd_buffer(priv)) {
+		pr_err("Out of memory allocating command buffers\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	priv->resp_idx = 0;
+	priv->resp_len[0] = priv->resp_len[1] = 0;
+
+	/* Create the event FIFO */
+	ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL);
+	if (ret) {
+		pr_err("Out of memory allocating event FIFO buffer\n");
+		lbs_free_cmd_buffer(priv);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static void lbs_free_adapter(struct lbs_private *priv)
+{
+	lbs_free_cmd_buffer(priv);
+	kfifo_free(&priv->event_fifo);
+	del_timer(&priv->command_timer);
+	del_timer(&priv->tx_lockup_timer);
+	del_timer(&priv->auto_deepsleep_timer);
+}
+
+static const struct net_device_ops lbs_netdev_ops = {
+	.ndo_open 		= lbs_dev_open,
+	.ndo_stop		= lbs_eth_stop,
+	.ndo_start_xmit		= lbs_hard_start_xmit,
+	.ndo_set_mac_address	= lbs_set_mac_address,
+	.ndo_set_rx_mode	= lbs_set_multicast_list,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
+/**
+ * lbs_add_card - adds the card. It will probe the
+ * card, allocate the lbs_priv and initialize the device.
+ *
+ * @card:	A pointer to card
+ * @dmdev:	A pointer to &struct device
+ * returns:	A pointer to &struct lbs_private structure
+ */
+struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
+{
+	struct net_device *dev;
+	struct wireless_dev *wdev;
+	struct lbs_private *priv = NULL;
+	int err;
+
+	/* Allocate an Ethernet device and register it */
+	wdev = lbs_cfg_alloc(dmdev);
+	if (IS_ERR(wdev)) {
+		err = PTR_ERR(wdev);
+		pr_err("cfg80211 init failed\n");
+		goto err_cfg;
+	}
+
+	wdev->iftype = NL80211_IFTYPE_STATION;
+	priv = wdev_priv(wdev);
+	priv->wdev = wdev;
+
+	err = lbs_init_adapter(priv);
+	if (err) {
+		pr_err("failed to initialize adapter structure\n");
+		goto err_wdev;
+	}
+
+	dev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, ether_setup);
+	if (!dev) {
+		err = -ENOMEM;
+		dev_err(dmdev, "no memory for network device instance\n");
+		goto err_adapter;
+	}
+
+	dev->ieee80211_ptr = wdev;
+	dev->ml_priv = priv;
+	SET_NETDEV_DEV(dev, dmdev);
+	wdev->netdev = dev;
+	priv->dev = dev;
+
+	dev->netdev_ops = &lbs_netdev_ops;
+	dev->watchdog_timeo = 5 * HZ;
+	dev->ethtool_ops = &lbs_ethtool_ops;
+	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
+
+	priv->card = card;
+
+	strcpy(dev->name, "wlan%d");
+
+	lbs_deb_thread("Starting main thread...\n");
+	init_waitqueue_head(&priv->waitq);
+	priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
+	if (IS_ERR(priv->main_thread)) {
+		err = PTR_ERR(priv->main_thread);
+		lbs_deb_thread("Error creating main thread.\n");
+		goto err_ndev;
+	}
+
+	priv->work_thread = create_singlethread_workqueue("lbs_worker");
+	INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
+
+	priv->wol_criteria = EHS_REMOVE_WAKEUP;
+	priv->wol_gpio = 0xff;
+	priv->wol_gap = 20;
+	priv->ehs_remove_supported = true;
+
+	return priv;
+
+ err_ndev:
+	free_netdev(dev);
+
+ err_adapter:
+	lbs_free_adapter(priv);
+
+ err_wdev:
+	lbs_cfg_free(priv);
+
+ err_cfg:
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(lbs_add_card);
+
+
+void lbs_remove_card(struct lbs_private *priv)
+{
+	struct net_device *dev = priv->dev;
+
+	lbs_remove_mesh(priv);
+
+	if (priv->wiphy_registered)
+		lbs_scan_deinit(priv);
+
+	lbs_wait_for_firmware_load(priv);
+
+	/* worker thread destruction blocks on the in-flight command which
+	 * should have been cleared already in lbs_stop_card().
+	 */
+	lbs_deb_main("destroying worker thread\n");
+	destroy_workqueue(priv->work_thread);
+	lbs_deb_main("done destroying worker thread\n");
+
+	if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
+		priv->psmode = LBS802_11POWERMODECAM;
+		/* no need to wakeup if already woken up,
+		 * on suspend, this exit ps command is not processed
+		 * the driver hangs
+		 */
+		if (priv->psstate != PS_STATE_FULL_POWER)
+			lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true);
+	}
+
+	if (priv->is_deep_sleep) {
+		priv->is_deep_sleep = 0;
+		wake_up_interruptible(&priv->ds_awake_q);
+	}
+
+	priv->is_host_sleep_configured = 0;
+	priv->is_host_sleep_activated = 0;
+	wake_up_interruptible(&priv->host_sleep_q);
+
+	/* Stop the thread servicing the interrupts */
+	priv->surpriseremoved = 1;
+	kthread_stop(priv->main_thread);
+
+	lbs_free_adapter(priv);
+	lbs_cfg_free(priv);
+	free_netdev(dev);
+}
+EXPORT_SYMBOL_GPL(lbs_remove_card);
+
+
+int lbs_rtap_supported(struct lbs_private *priv)
+{
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
+		return 1;
+
+	/* newer firmware use a capability mask */
+	return ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
+		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK));
+}
+
+
+int lbs_start_card(struct lbs_private *priv)
+{
+	struct net_device *dev = priv->dev;
+	int ret;
+
+	/* poke the firmware */
+	ret = lbs_setup_firmware(priv);
+	if (ret)
+		goto done;
+
+	if (!lbs_disablemesh)
+		lbs_init_mesh(priv);
+	else
+		pr_info("%s: mesh disabled\n", dev->name);
+
+	ret = lbs_cfg_register(priv);
+	if (ret) {
+		pr_err("cannot register device\n");
+		goto done;
+	}
+
+	if (lbs_mesh_activated(priv))
+		lbs_start_mesh(priv);
+
+	lbs_debugfs_init_one(priv, dev);
+
+	netdev_info(dev, "Marvell WLAN 802.11 adapter\n");
+
+	ret = 0;
+
+done:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_start_card);
+
+
+void lbs_stop_card(struct lbs_private *priv)
+{
+	struct net_device *dev;
+
+	if (!priv)
+		return;
+	dev = priv->dev;
+
+	/* If the netdev isn't registered, it means that lbs_start_card() was
+	 * never called so we have nothing to do here. */
+	if (dev->reg_state != NETREG_REGISTERED)
+		return;
+
+	netif_stop_queue(dev);
+	netif_carrier_off(dev);
+
+	lbs_debugfs_remove_one(priv);
+	lbs_deinit_mesh(priv);
+	unregister_netdev(dev);
+}
+EXPORT_SYMBOL_GPL(lbs_stop_card);
+
+
+void lbs_queue_event(struct lbs_private *priv, u32 event)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (priv->psstate == PS_STATE_SLEEP)
+		priv->psstate = PS_STATE_AWAKE;
+
+	kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32));
+
+	wake_up(&priv->waitq);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+}
+EXPORT_SYMBOL_GPL(lbs_queue_event);
+
+void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx)
+{
+	if (priv->psstate == PS_STATE_SLEEP)
+		priv->psstate = PS_STATE_AWAKE;
+
+	/* Swap buffers by flipping the response index */
+	BUG_ON(resp_idx > 1);
+	priv->resp_idx = resp_idx;
+
+	wake_up(&priv->waitq);
+}
+EXPORT_SYMBOL_GPL(lbs_notify_command_response);
+
+static int __init lbs_init_module(void)
+{
+	memset(&confirm_sleep, 0, sizeof(confirm_sleep));
+	confirm_sleep.hdr.command = cpu_to_le16(CMD_802_11_PS_MODE);
+	confirm_sleep.hdr.size = cpu_to_le16(sizeof(confirm_sleep));
+	confirm_sleep.action = cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED);
+	lbs_debugfs_init();
+
+	return 0;
+}
+
+static void __exit lbs_exit_module(void)
+{
+	lbs_debugfs_remove();
+}
+
+module_init(lbs_init_module);
+module_exit(lbs_exit_module);
+
+MODULE_DESCRIPTION("Libertas WLAN Driver Library");
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c
new file mode 100644
index 0000000000..2dd6359354
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/mesh.c
@@ -0,0 +1,1161 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/hardirq.h>
+#include <linux/netdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_arp.h>
+#include <linux/kthread.h>
+#include <linux/kfifo.h>
+#include <net/cfg80211.h>
+
+#include "mesh.h"
+#include "decl.h"
+#include "cmd.h"
+
+
+static int lbs_add_mesh(struct lbs_private *priv);
+
+/***************************************************************************
+ * Mesh command handling
+ */
+
+static int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
+		    struct cmd_ds_mesh_access *cmd)
+{
+	int ret;
+
+	cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
+	cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
+	cmd->hdr.result = 0;
+
+	cmd->action = cpu_to_le16(cmd_action);
+
+	ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
+
+	return ret;
+}
+
+static int __lbs_mesh_config_send(struct lbs_private *priv,
+				  struct cmd_ds_mesh_config *cmd,
+				  uint16_t action, uint16_t type)
+{
+	int ret;
+	u16 command = CMD_MESH_CONFIG_OLD;
+
+	/*
+	 * Command id is 0xac for v10 FW along with mesh interface
+	 * id in bits 14-13-12.
+	 */
+	if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
+		command = CMD_MESH_CONFIG |
+			  (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
+
+	cmd->hdr.command = cpu_to_le16(command);
+	cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
+	cmd->hdr.result = 0;
+
+	cmd->type = cpu_to_le16(type);
+	cmd->action = cpu_to_le16(action);
+
+	ret = lbs_cmd_with_response(priv, command, cmd);
+
+	return ret;
+}
+
+static int lbs_mesh_config_send(struct lbs_private *priv,
+			 struct cmd_ds_mesh_config *cmd,
+			 uint16_t action, uint16_t type)
+{
+	int ret;
+
+	if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
+		return -EOPNOTSUPP;
+
+	ret = __lbs_mesh_config_send(priv, cmd, action, type);
+	return ret;
+}
+
+/* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
+ * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
+ * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
+ * lbs_mesh_config_send.
+ */
+static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
+		uint16_t chan)
+{
+	struct wireless_dev *mesh_wdev;
+	struct cmd_ds_mesh_config cmd;
+	struct mrvl_meshie *ie;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.channel = cpu_to_le16(chan);
+	ie = (struct mrvl_meshie *)cmd.data;
+
+	switch (action) {
+	case CMD_ACT_MESH_CONFIG_START:
+		ie->id = WLAN_EID_VENDOR_SPECIFIC;
+		ie->val.oui[0] = 0x00;
+		ie->val.oui[1] = 0x50;
+		ie->val.oui[2] = 0x43;
+		ie->val.type = MARVELL_MESH_IE_TYPE;
+		ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
+		ie->val.version = MARVELL_MESH_IE_VERSION;
+		ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
+		ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
+		ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
+
+		if (priv->mesh_dev) {
+			mesh_wdev = priv->mesh_dev->ieee80211_ptr;
+			ie->val.mesh_id_len = mesh_wdev->u.mesh.id_up_len;
+			memcpy(ie->val.mesh_id, mesh_wdev->u.mesh.id,
+						mesh_wdev->u.mesh.id_up_len);
+		}
+
+		ie->len = sizeof(struct mrvl_meshie_val) -
+			IEEE80211_MAX_SSID_LEN + ie->val.mesh_id_len;
+
+		cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
+		break;
+	case CMD_ACT_MESH_CONFIG_STOP:
+		break;
+	default:
+		return -1;
+	}
+	lbs_deb_cmd("mesh config action %d type %x channel %d SSID %*pE\n",
+		    action, priv->mesh_tlv, chan, ie->val.mesh_id_len,
+		    ie->val.mesh_id);
+
+	return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
+}
+
+int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel)
+{
+	priv->mesh_channel = channel;
+	return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel);
+}
+
+static uint16_t lbs_mesh_get_channel(struct lbs_private *priv)
+{
+	return priv->mesh_channel ?: 1;
+}
+
+/***************************************************************************
+ * Mesh sysfs support
+ */
+
+/*
+ * Attributes exported through sysfs
+ */
+
+/**
+ * anycast_mask_show - Get function for sysfs attribute anycast_mask
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t anycast_mask_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_access mesh_access;
+	int ret;
+
+	memset(&mesh_access, 0, sizeof(mesh_access));
+
+	ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
+}
+
+/**
+ * anycast_mask_store - Set function for sysfs attribute anycast_mask
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t anycast_mask_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_access mesh_access;
+	uint32_t datum;
+	int ret;
+
+	ret = kstrtouint(buf, 16, &datum);
+	if (ret)
+		return ret;
+
+	memset(&mesh_access, 0, sizeof(mesh_access));
+	mesh_access.data[0] = cpu_to_le32(datum);
+
+	ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * prb_rsp_limit_show - Get function for sysfs attribute prb_rsp_limit
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t prb_rsp_limit_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_access mesh_access;
+	int ret;
+	u32 retry_limit;
+
+	memset(&mesh_access, 0, sizeof(mesh_access));
+	mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET);
+
+	ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
+			&mesh_access);
+	if (ret)
+		return ret;
+
+	retry_limit = le32_to_cpu(mesh_access.data[1]);
+	return sysfs_emit(buf, "%d\n", retry_limit);
+}
+
+/**
+ * prb_rsp_limit_store - Set function for sysfs attribute prb_rsp_limit
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t prb_rsp_limit_store(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_access mesh_access;
+	int ret;
+	unsigned long retry_limit;
+
+	ret = kstrtoul(buf, 10, &retry_limit);
+	if (ret)
+		return ret;
+	if (retry_limit > 15)
+		return -ENOTSUPP;
+
+	memset(&mesh_access, 0, sizeof(mesh_access));
+	mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
+	mesh_access.data[1] = cpu_to_le32(retry_limit);
+
+	ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
+			&mesh_access);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * lbs_mesh_show - Get function for sysfs attribute mesh
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t lbs_mesh_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	return sysfs_emit(buf, "0x%X\n", !!priv->mesh_dev);
+}
+
+/**
+ * lbs_mesh_store - Set function for sysfs attribute mesh
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t lbs_mesh_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	int ret, enable;
+
+	ret = kstrtoint(buf, 16, &enable);
+	if (ret)
+		return ret;
+
+	enable = !!enable;
+	if (enable == !!priv->mesh_dev)
+		return count;
+
+	if (enable)
+		lbs_add_mesh(priv);
+	else
+		lbs_remove_mesh(priv);
+
+	return count;
+}
+
+/*
+ * lbs_mesh attribute to be exported per ethX interface
+ * through sysfs (/sys/class/net/ethX/lbs_mesh)
+ */
+static DEVICE_ATTR_RW(lbs_mesh);
+
+/*
+ * anycast_mask attribute to be exported per mshX interface
+ * through sysfs (/sys/class/net/mshX/anycast_mask)
+ */
+static DEVICE_ATTR_RW(anycast_mask);
+
+/*
+ * prb_rsp_limit attribute to be exported per mshX interface
+ * through sysfs (/sys/class/net/mshX/prb_rsp_limit)
+ */
+static DEVICE_ATTR_RW(prb_rsp_limit);
+
+static struct attribute *lbs_mesh_sysfs_entries[] = {
+	&dev_attr_anycast_mask.attr,
+	&dev_attr_prb_rsp_limit.attr,
+	NULL,
+};
+
+static const struct attribute_group lbs_mesh_attr_group = {
+	.attrs = lbs_mesh_sysfs_entries,
+};
+
+
+/***************************************************************************
+ * Persistent configuration support
+ */
+
+static int mesh_get_default_parameters(struct device *dev,
+				       struct mrvl_mesh_defaults *defs)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_config cmd;
+	int ret;
+
+	memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET,
+				   CMD_TYPE_MESH_GET_DEFAULTS);
+
+	if (ret)
+		return -EOPNOTSUPP;
+
+	memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults));
+
+	return 0;
+}
+
+/**
+ * bootflag_show - Get function for sysfs attribute bootflag
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t bootflag_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", le32_to_cpu(defs.bootflag));
+}
+
+/**
+ * bootflag_store - Set function for sysfs attribute bootflag
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t bootflag_store(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_config cmd;
+	uint32_t datum;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &datum);
+	if (ret)
+		return ret;
+	if (datum > 1)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(cmd));
+	*((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
+	cmd.length = cpu_to_le16(sizeof(uint32_t));
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_BOOTFLAG);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * boottime_show - Get function for sysfs attribute boottime
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t boottime_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", defs.boottime);
+}
+
+/**
+ * boottime_store - Set function for sysfs attribute boottime
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t boottime_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_config cmd;
+	uint32_t datum;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &datum);
+	if (ret)
+		return ret;
+	if (datum > 255)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	/* A too small boot time will result in the device booting into
+	 * standalone (no-host) mode before the host can take control of it,
+	 * so the change will be hard to revert.  This may be a desired
+	 * feature (e.g to configure a very fast boot time for devices that
+	 * will not be attached to a host), but dangerous.  So I'm enforcing a
+	 * lower limit of 20 seconds:  remove and recompile the driver if this
+	 * does not work for you.
+	 */
+	datum = (datum < 20) ? 20 : datum;
+	cmd.data[0] = datum;
+	cmd.length = cpu_to_le16(sizeof(uint8_t));
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_BOOTTIME);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * channel_show - Get function for sysfs attribute channel
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t channel_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", le16_to_cpu(defs.channel));
+}
+
+/**
+ * channel_store - Set function for sysfs attribute channel
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t channel_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	struct cmd_ds_mesh_config cmd;
+	uint32_t datum;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &datum);
+	if (ret)
+		return ret;
+	if (datum < 1 || datum > 11)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(cmd));
+	*((__le16 *)&cmd.data[0]) = cpu_to_le16(datum);
+	cmd.length = cpu_to_le16(sizeof(uint16_t));
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_DEF_CHANNEL);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * mesh_id_show - Get function for sysfs attribute mesh_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t mesh_id_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) {
+		dev_err(dev, "inconsistent mesh ID length\n");
+		defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN;
+	}
+
+	memcpy(buf, defs.meshie.val.mesh_id, defs.meshie.val.mesh_id_len);
+	buf[defs.meshie.val.mesh_id_len] = '\n';
+	buf[defs.meshie.val.mesh_id_len + 1] = '\0';
+
+	return defs.meshie.val.mesh_id_len + 1;
+}
+
+/**
+ * mesh_id_store - Set function for sysfs attribute mesh_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t mesh_id_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct cmd_ds_mesh_config cmd;
+	struct mrvl_mesh_defaults defs;
+	struct mrvl_meshie *ie;
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	int len;
+	int ret;
+
+	if (count < 2 || count > IEEE80211_MAX_SSID_LEN + 1)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
+	ie = (struct mrvl_meshie *) &cmd.data[0];
+
+	/* fetch all other Information Element parameters */
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
+
+	/* transfer IE elements */
+	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
+
+	len = count - 1;
+	memcpy(ie->val.mesh_id, buf, len);
+	/* SSID len */
+	ie->val.mesh_id_len = len;
+	/* IE len */
+	ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + len;
+
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_MESH_IE);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * protocol_id_show - Get function for sysfs attribute protocol_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t protocol_id_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", defs.meshie.val.active_protocol_id);
+}
+
+/**
+ * protocol_id_store - Set function for sysfs attribute protocol_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t protocol_id_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct cmd_ds_mesh_config cmd;
+	struct mrvl_mesh_defaults defs;
+	struct mrvl_meshie *ie;
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	uint32_t datum;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &datum);
+	if (ret)
+		return ret;
+	if (datum > 255)
+		return -EINVAL;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	/* fetch all other Information Element parameters */
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
+
+	/* transfer IE elements */
+	ie = (struct mrvl_meshie *) &cmd.data[0];
+	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
+	/* update protocol id */
+	ie->val.active_protocol_id = datum;
+
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_MESH_IE);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * metric_id_show - Get function for sysfs attribute metric_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t metric_id_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", defs.meshie.val.active_metric_id);
+}
+
+/**
+ * metric_id_store - Set function for sysfs attribute metric_id
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t metric_id_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct cmd_ds_mesh_config cmd;
+	struct mrvl_mesh_defaults defs;
+	struct mrvl_meshie *ie;
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	uint32_t datum;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	ret = sscanf(buf, "%d", &datum);
+	if ((ret != 1) || (datum > 255))
+		return -EINVAL;
+
+	/* fetch all other Information Element parameters */
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
+
+	/* transfer IE elements */
+	ie = (struct mrvl_meshie *) &cmd.data[0];
+	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
+	/* update metric id */
+	ie->val.active_metric_id = datum;
+
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_MESH_IE);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+/**
+ * capability_show - Get function for sysfs attribute capability
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer where data will be returned
+ */
+static ssize_t capability_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct mrvl_mesh_defaults defs;
+	int ret;
+
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	if (ret)
+		return ret;
+
+	return sysfs_emit(buf, "%d\n", defs.meshie.val.mesh_capability);
+}
+
+/**
+ * capability_store - Set function for sysfs attribute capability
+ * @dev: the &struct device
+ * @attr: device attributes
+ * @buf: buffer that contains new attribute value
+ * @count: size of buffer
+ */
+static ssize_t capability_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct cmd_ds_mesh_config cmd;
+	struct mrvl_mesh_defaults defs;
+	struct mrvl_meshie *ie;
+	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
+	uint32_t datum;
+	int ret;
+
+	memset(&cmd, 0, sizeof(cmd));
+	ret = sscanf(buf, "%d", &datum);
+	if ((ret != 1) || (datum > 255))
+		return -EINVAL;
+
+	/* fetch all other Information Element parameters */
+	ret = mesh_get_default_parameters(dev, &defs);
+
+	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
+
+	/* transfer IE elements */
+	ie = (struct mrvl_meshie *) &cmd.data[0];
+	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
+	/* update value */
+	ie->val.mesh_capability = datum;
+
+	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
+				   CMD_TYPE_MESH_SET_MESH_IE);
+	if (ret)
+		return ret;
+
+	return strlen(buf);
+}
+
+
+static DEVICE_ATTR_RW(bootflag);
+static DEVICE_ATTR_RW(boottime);
+static DEVICE_ATTR_RW(channel);
+static DEVICE_ATTR_RW(mesh_id);
+static DEVICE_ATTR_RW(protocol_id);
+static DEVICE_ATTR_RW(metric_id);
+static DEVICE_ATTR_RW(capability);
+
+static struct attribute *boot_opts_attrs[] = {
+	&dev_attr_bootflag.attr,
+	&dev_attr_boottime.attr,
+	&dev_attr_channel.attr,
+	NULL
+};
+
+static const struct attribute_group boot_opts_group = {
+	.name = "boot_options",
+	.attrs = boot_opts_attrs,
+};
+
+static struct attribute *mesh_ie_attrs[] = {
+	&dev_attr_mesh_id.attr,
+	&dev_attr_protocol_id.attr,
+	&dev_attr_metric_id.attr,
+	&dev_attr_capability.attr,
+	NULL
+};
+
+static const struct attribute_group mesh_ie_group = {
+	.name = "mesh_ie",
+	.attrs = mesh_ie_attrs,
+};
+
+
+/***************************************************************************
+ * Initializing and starting, stopping mesh
+ */
+
+/*
+ * Check mesh FW version and appropriately send the mesh start
+ * command
+ */
+void lbs_init_mesh(struct lbs_private *priv)
+{
+	/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
+	/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
+	/* 5.110.22 have mesh command with 0xa3 command id */
+	/* 10.0.0.p0 FW brings in mesh config command with different id */
+	/* Check FW version MSB and initialize mesh_fw_ver */
+	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
+		/* Enable mesh, if supported, and work out which TLV it uses.
+		   0x100 + 291 is an unofficial value used in 5.110.20.pXX
+		   0x100 + 37 is the official value used in 5.110.21.pXX
+		   but we check them in that order because 20.pXX doesn't
+		   give an error -- it just silently fails. */
+
+		/* 5.110.20.pXX firmware will fail the command if the channel
+		   doesn't match the existing channel. But only if the TLV
+		   is correct. If the channel is wrong, _BOTH_ versions will
+		   give an error to 0x100+291, and allow 0x100+37 to succeed.
+		   It's just that 5.110.20.pXX will not have done anything
+		   useful */
+
+		priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
+		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) {
+			priv->mesh_tlv = TLV_TYPE_MESH_ID;
+			if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
+				priv->mesh_tlv = 0;
+		}
+	} else
+	if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
+		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
+		/* 10.0.0.pXX new firmwares should succeed with TLV
+		 * 0x100+37; Do not invoke command with old TLV.
+		 */
+		priv->mesh_tlv = TLV_TYPE_MESH_ID;
+		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
+			priv->mesh_tlv = 0;
+	}
+
+	/* Stop meshing until interface is brought up */
+	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1);
+}
+
+void lbs_start_mesh(struct lbs_private *priv)
+{
+	lbs_add_mesh(priv);
+
+	if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh))
+		netdev_err(priv->dev, "cannot register lbs_mesh attribute\n");
+}
+
+int lbs_deinit_mesh(struct lbs_private *priv)
+{
+	struct net_device *dev = priv->dev;
+	int ret = 0;
+
+	if (priv->mesh_tlv) {
+		device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
+		ret = 1;
+	}
+
+	return ret;
+}
+
+
+/**
+ * lbs_mesh_stop - close the mshX interface
+ *
+ * @dev:	A pointer to &net_device structure
+ * returns:	0
+ */
+static int lbs_mesh_stop(struct net_device *dev)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
+		lbs_mesh_get_channel(priv));
+
+	spin_lock_irq(&priv->driver_lock);
+
+	netif_stop_queue(dev);
+	netif_carrier_off(dev);
+
+	spin_unlock_irq(&priv->driver_lock);
+
+	lbs_update_mcast(priv);
+	if (!lbs_iface_active(priv))
+		lbs_stop_iface(priv);
+
+	return 0;
+}
+
+/**
+ * lbs_mesh_dev_open - open the mshX interface
+ *
+ * @dev:	A pointer to &net_device structure
+ * returns:	0 or -EBUSY if monitor mode active
+ */
+static int lbs_mesh_dev_open(struct net_device *dev)
+{
+	struct lbs_private *priv = dev->ml_priv;
+	int ret = 0;
+
+	if (!priv->iface_running) {
+		ret = lbs_start_iface(priv);
+		if (ret)
+			goto out;
+	}
+
+	spin_lock_irq(&priv->driver_lock);
+
+	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
+		ret = -EBUSY;
+		spin_unlock_irq(&priv->driver_lock);
+		goto out;
+	}
+
+	netif_carrier_on(dev);
+
+	if (!priv->tx_pending_len)
+		netif_wake_queue(dev);
+
+	spin_unlock_irq(&priv->driver_lock);
+
+	ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
+		lbs_mesh_get_channel(priv));
+
+out:
+	return ret;
+}
+
+static const struct net_device_ops mesh_netdev_ops = {
+	.ndo_open		= lbs_mesh_dev_open,
+	.ndo_stop 		= lbs_mesh_stop,
+	.ndo_start_xmit		= lbs_hard_start_xmit,
+	.ndo_set_mac_address	= lbs_set_mac_address,
+	.ndo_set_rx_mode	= lbs_set_multicast_list,
+};
+
+/**
+ * lbs_add_mesh - add mshX interface
+ *
+ * @priv:	A pointer to the &struct lbs_private structure
+ * returns:	0 if successful, -X otherwise
+ */
+static int lbs_add_mesh(struct lbs_private *priv)
+{
+	struct net_device *mesh_dev = NULL;
+	struct wireless_dev *mesh_wdev;
+	int ret = 0;
+
+	/* Allocate a virtual mesh device */
+	mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
+	if (!mesh_wdev) {
+		lbs_deb_mesh("init mshX wireless device failed\n");
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	mesh_dev = alloc_netdev(0, "msh%d", NET_NAME_UNKNOWN, ether_setup);
+	if (!mesh_dev) {
+		lbs_deb_mesh("init mshX device failed\n");
+		ret = -ENOMEM;
+		goto err_free_wdev;
+	}
+
+	mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
+	mesh_wdev->wiphy = priv->wdev->wiphy;
+
+	if (priv->mesh_tlv) {
+		sprintf(mesh_wdev->u.mesh.id, "mesh");
+		mesh_wdev->u.mesh.id_up_len = 4;
+	}
+
+	mesh_wdev->netdev = mesh_dev;
+
+	mesh_dev->ml_priv = priv;
+	mesh_dev->ieee80211_ptr = mesh_wdev;
+	priv->mesh_dev = mesh_dev;
+
+	mesh_dev->netdev_ops = &mesh_netdev_ops;
+	mesh_dev->ethtool_ops = &lbs_ethtool_ops;
+	eth_hw_addr_inherit(mesh_dev, priv->dev);
+
+	SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
+
+	mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
+	mesh_dev->sysfs_groups[0] = &lbs_mesh_attr_group;
+	mesh_dev->sysfs_groups[1] = &boot_opts_group;
+	mesh_dev->sysfs_groups[2] = &mesh_ie_group;
+
+	/* Register virtual mesh interface */
+	ret = register_netdev(mesh_dev);
+	if (ret) {
+		pr_err("cannot register mshX virtual interface\n");
+		goto err_free_netdev;
+	}
+
+	/* Everything successful */
+	ret = 0;
+	goto done;
+
+err_free_netdev:
+	free_netdev(mesh_dev);
+
+err_free_wdev:
+	kfree(mesh_wdev);
+
+done:
+	return ret;
+}
+
+void lbs_remove_mesh(struct lbs_private *priv)
+{
+	struct net_device *mesh_dev;
+
+	mesh_dev = priv->mesh_dev;
+	if (!mesh_dev)
+		return;
+
+	netif_stop_queue(mesh_dev);
+	netif_carrier_off(mesh_dev);
+	unregister_netdev(mesh_dev);
+	priv->mesh_dev = NULL;
+	kfree(mesh_dev->ieee80211_ptr);
+	free_netdev(mesh_dev);
+}
+
+
+/***************************************************************************
+ * Sending and receiving
+ */
+struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
+	struct net_device *dev, struct rxpd *rxpd)
+{
+	if (priv->mesh_dev) {
+		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) {
+			if (rxpd->rx_control & RxPD_MESH_FRAME)
+				dev = priv->mesh_dev;
+		} else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) {
+			if (rxpd->u.bss.bss_num == MESH_IFACE_ID)
+				dev = priv->mesh_dev;
+		}
+	}
+	return dev;
+}
+
+
+void lbs_mesh_set_txpd(struct lbs_private *priv,
+	struct net_device *dev, struct txpd *txpd)
+{
+	if (dev == priv->mesh_dev) {
+		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID)
+			txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
+		else if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
+			txpd->u.bss.bss_num = MESH_IFACE_ID;
+	}
+}
+
+
+/***************************************************************************
+ * Ethtool related
+ */
+
+static const char mesh_stat_strings[MESH_STATS_NUM][ETH_GSTRING_LEN] = {
+	"drop_duplicate_bcast",
+	"drop_ttl_zero",
+	"drop_no_fwd_route",
+	"drop_no_buffers",
+	"fwded_unicast_cnt",
+	"fwded_bcast_cnt",
+	"drop_blind_table",
+	"tx_failed_cnt"
+};
+
+void lbs_mesh_ethtool_get_stats(struct net_device *dev,
+	struct ethtool_stats *stats, uint64_t *data)
+{
+	struct lbs_private *priv = dev->ml_priv;
+	struct cmd_ds_mesh_access mesh_access;
+	int ret;
+
+	/* Get Mesh Statistics */
+	ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access);
+
+	if (ret) {
+		memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t)));
+		return;
+	}
+
+	priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
+	priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
+	priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]);
+	priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]);
+	priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]);
+	priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]);
+	priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]);
+	priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]);
+
+	data[0] = priv->mstats.fwd_drop_rbt;
+	data[1] = priv->mstats.fwd_drop_ttl;
+	data[2] = priv->mstats.fwd_drop_noroute;
+	data[3] = priv->mstats.fwd_drop_nobuf;
+	data[4] = priv->mstats.fwd_unicast_cnt;
+	data[5] = priv->mstats.fwd_bcast_cnt;
+	data[6] = priv->mstats.drop_blind;
+	data[7] = priv->mstats.tx_failed_cnt;
+}
+
+int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset)
+{
+	struct lbs_private *priv = dev->ml_priv;
+
+	if (sset == ETH_SS_STATS && dev == priv->mesh_dev)
+		return MESH_STATS_NUM;
+
+	return -EOPNOTSUPP;
+}
+
+void lbs_mesh_ethtool_get_strings(struct net_device *dev,
+	uint32_t stringset, uint8_t *s)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(s, mesh_stat_strings, sizeof(mesh_stat_strings));
+		break;
+	}
+}
diff --git a/drivers/net/wireless/marvell/libertas/mesh.h b/drivers/net/wireless/marvell/libertas/mesh.h
new file mode 100644
index 0000000000..44c4cd0230
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/mesh.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Contains all definitions needed for the Libertas' MESH implementation.
+ */
+#ifndef _LBS_MESH_H_
+#define _LBS_MESH_H_
+
+
+#include <net/iw_handler.h>
+#include <net/lib80211.h>
+
+#include "host.h"
+#include "dev.h"
+
+#ifdef CONFIG_LIBERTAS_MESH
+
+struct net_device;
+
+void lbs_init_mesh(struct lbs_private *priv);
+void lbs_start_mesh(struct lbs_private *priv);
+int lbs_deinit_mesh(struct lbs_private *priv);
+
+void lbs_remove_mesh(struct lbs_private *priv);
+
+static inline bool lbs_mesh_activated(struct lbs_private *priv)
+{
+	return !!priv->mesh_tlv;
+}
+
+int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel);
+
+/* Sending / Receiving */
+
+struct rxpd;
+struct txpd;
+
+struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
+	struct net_device *dev, struct rxpd *rxpd);
+void lbs_mesh_set_txpd(struct lbs_private *priv,
+	struct net_device *dev, struct txpd *txpd);
+
+
+/* Command handling */
+
+struct cmd_ds_command;
+struct cmd_ds_mesh_access;
+struct cmd_ds_mesh_config;
+
+
+/* Ethtool statistics */
+
+struct ethtool_stats;
+
+void lbs_mesh_ethtool_get_stats(struct net_device *dev,
+	struct ethtool_stats *stats, uint64_t *data);
+int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset);
+void lbs_mesh_ethtool_get_strings(struct net_device *dev,
+	uint32_t stringset, uint8_t *s);
+
+
+#else
+
+#define lbs_init_mesh(priv)	do { } while (0)
+#define lbs_deinit_mesh(priv)	do { } while (0)
+#define lbs_start_mesh(priv)	do { } while (0)
+#define lbs_add_mesh(priv)	do { } while (0)
+#define lbs_remove_mesh(priv)	do { } while (0)
+#define lbs_mesh_set_dev(priv, dev, rxpd) (dev)
+#define lbs_mesh_set_txpd(priv, dev, txpd) do { } while (0)
+#define lbs_mesh_set_channel(priv, channel) (0)
+#define lbs_mesh_activated(priv) (false)
+
+#endif
+
+
+
+#endif
diff --git a/drivers/net/wireless/marvell/libertas/radiotap.h b/drivers/net/wireless/marvell/libertas/radiotap.h
new file mode 100644
index 0000000000..1ed5608d35
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/radiotap.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <net/ieee80211_radiotap.h>
+
+struct tx_radiotap_hdr {
+	struct ieee80211_radiotap_header hdr;
+	u8 rate;
+	u8 txpower;
+	u8 rts_retries;
+	u8 data_retries;
+} __packed;
+
+#define TX_RADIOTAP_PRESENT (				\
+	(1 << IEEE80211_RADIOTAP_RATE) |		\
+	(1 << IEEE80211_RADIOTAP_DBM_TX_POWER) |	\
+	(1 << IEEE80211_RADIOTAP_RTS_RETRIES) |		\
+	(1 << IEEE80211_RADIOTAP_DATA_RETRIES)  |	\
+	0)
+
+#define IEEE80211_FC_VERSION_MASK    0x0003
+#define IEEE80211_FC_TYPE_MASK       0x000c
+#define IEEE80211_FC_TYPE_MGT        0x0000
+#define IEEE80211_FC_TYPE_CTL        0x0004
+#define IEEE80211_FC_TYPE_DATA       0x0008
+#define IEEE80211_FC_SUBTYPE_MASK    0x00f0
+#define IEEE80211_FC_TOFROMDS_MASK   0x0300
+#define IEEE80211_FC_TODS_MASK       0x0100
+#define IEEE80211_FC_FROMDS_MASK     0x0200
+#define IEEE80211_FC_NODS            0x0000
+#define IEEE80211_FC_TODS            0x0100
+#define IEEE80211_FC_FROMDS          0x0200
+#define IEEE80211_FC_DSTODS          0x0300
+
+struct rx_radiotap_hdr {
+	struct ieee80211_radiotap_header hdr;
+	u8 flags;
+	u8 rate;
+	u8 antsignal;
+} __packed;
+
+#define RX_RADIOTAP_PRESENT (			\
+	(1 << IEEE80211_RADIOTAP_FLAGS) |	\
+	(1 << IEEE80211_RADIOTAP_RATE) |	\
+	(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |\
+	0)
+
diff --git a/drivers/net/wireless/marvell/libertas/rx.c b/drivers/net/wireless/marvell/libertas/rx.c
new file mode 100644
index 0000000000..c34d30f7cb
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/rx.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file contains the handling of RX in wlan driver.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/etherdevice.h>
+#include <linux/hardirq.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/export.h>
+#include <net/cfg80211.h>
+
+#include "defs.h"
+#include "host.h"
+#include "radiotap.h"
+#include "decl.h"
+#include "dev.h"
+#include "mesh.h"
+
+struct eth803hdr {
+	u8 dest_addr[6];
+	u8 src_addr[6];
+	u16 h803_len;
+} __packed;
+
+struct rfc1042hdr {
+	u8 llc_dsap;
+	u8 llc_ssap;
+	u8 llc_ctrl;
+	u8 snap_oui[3];
+	u16 snap_type;
+} __packed;
+
+struct rxpackethdr {
+	struct eth803hdr eth803_hdr;
+	struct rfc1042hdr rfc1042_hdr;
+} __packed;
+
+struct rx80211packethdr {
+	struct rxpd rx_pd;
+	void *eth80211_hdr;
+} __packed;
+
+static int process_rxed_802_11_packet(struct lbs_private *priv,
+	struct sk_buff *skb);
+
+/**
+ * lbs_process_rxed_packet - processes received packet and forwards it
+ * to kernel/upper layer
+ *
+ * @priv:	A pointer to &struct lbs_private
+ * @skb:	A pointer to skb which includes the received packet
+ * returns:	0 or -1
+ */
+int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
+{
+	int ret = 0;
+	struct net_device *dev = priv->dev;
+	struct rxpackethdr *p_rx_pkt;
+	struct rxpd *p_rx_pd;
+	int hdrchop;
+	struct ethhdr *p_ethhdr;
+
+	BUG_ON(!skb);
+
+	skb->ip_summed = CHECKSUM_NONE;
+
+	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
+		ret = process_rxed_802_11_packet(priv, skb);
+		goto done;
+	}
+
+	p_rx_pd = (struct rxpd *) skb->data;
+	p_rx_pkt = (struct rxpackethdr *) ((u8 *)p_rx_pd +
+		le32_to_cpu(p_rx_pd->pkt_ptr));
+
+	dev = lbs_mesh_set_dev(priv, dev, p_rx_pd);
+
+	lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
+		 min_t(unsigned int, skb->len, 100));
+
+	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
+		lbs_deb_rx("rx err: frame received with bad length\n");
+		dev->stats.rx_length_errors++;
+		ret = -EINVAL;
+		dev_kfree_skb(skb);
+		goto done;
+	}
+
+	lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
+		skb->len, (size_t)le32_to_cpu(p_rx_pd->pkt_ptr),
+		skb->len - (size_t)le32_to_cpu(p_rx_pd->pkt_ptr));
+
+	lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
+		sizeof(p_rx_pkt->eth803_hdr.dest_addr));
+	lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
+		sizeof(p_rx_pkt->eth803_hdr.src_addr));
+
+	if (memcmp(&p_rx_pkt->rfc1042_hdr,
+		   rfc1042_header, sizeof(rfc1042_header)) == 0) {
+		/*
+		 *  Replace the 803 header and rfc1042 header (llc/snap) with an
+		 *    EthernetII header, keep the src/dst and snap_type (ethertype)
+		 *
+		 *  The firmware only passes up SNAP frames converting
+		 *    all RX Data from 802.11 to 802.2/LLC/SNAP frames.
+		 *
+		 *  To create the Ethernet II, just move the src, dst address right
+		 *    before the snap_type.
+		 */
+		p_ethhdr = (struct ethhdr *)
+		    ((u8 *) &p_rx_pkt->eth803_hdr
+		     + sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
+		     - sizeof(p_rx_pkt->eth803_hdr.dest_addr)
+		     - sizeof(p_rx_pkt->eth803_hdr.src_addr)
+		     - sizeof(p_rx_pkt->rfc1042_hdr.snap_type));
+
+		memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,
+		       sizeof(p_ethhdr->h_source));
+		memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
+		       sizeof(p_ethhdr->h_dest));
+
+		/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
+		 *   that was removed
+		 */
+		hdrchop = (u8 *)p_ethhdr - (u8 *)p_rx_pd;
+	} else {
+		lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
+			(u8 *) &p_rx_pkt->rfc1042_hdr,
+			sizeof(p_rx_pkt->rfc1042_hdr));
+
+		/* Chop off the rxpd */
+		hdrchop = (u8 *)&p_rx_pkt->eth803_hdr - (u8 *)p_rx_pd;
+	}
+
+	/* Chop off the leading header bytes so the skb points to the start of
+	 *   either the reconstructed EthII frame or the 802.2/llc/snap frame
+	 */
+	skb_pull(skb, hdrchop);
+
+	priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
+
+	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
+	dev->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
+
+	skb->protocol = eth_type_trans(skb, dev);
+	netif_rx(skb);
+
+	ret = 0;
+done:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_process_rxed_packet);
+
+/**
+ * convert_mv_rate_to_radiotap - converts Tx/Rx rates from Marvell WLAN format
+ * (see Table 2 in Section 3.1) to IEEE80211_RADIOTAP_RATE units (500 Kb/s)
+ *
+ * @rate:	Input rate
+ * returns:	Output Rate (0 if invalid)
+ */
+static u8 convert_mv_rate_to_radiotap(u8 rate)
+{
+	switch (rate) {
+	case 0:		/*   1 Mbps */
+		return 2;
+	case 1:		/*   2 Mbps */
+		return 4;
+	case 2:		/* 5.5 Mbps */
+		return 11;
+	case 3:		/*  11 Mbps */
+		return 22;
+	/* case 4: reserved */
+	case 5:		/*   6 Mbps */
+		return 12;
+	case 6:		/*   9 Mbps */
+		return 18;
+	case 7:		/*  12 Mbps */
+		return 24;
+	case 8:		/*  18 Mbps */
+		return 36;
+	case 9:		/*  24 Mbps */
+		return 48;
+	case 10:		/*  36 Mbps */
+		return 72;
+	case 11:		/*  48 Mbps */
+		return 96;
+	case 12:		/*  54 Mbps */
+		return 108;
+	}
+	pr_alert("Invalid Marvell WLAN rate %i\n", rate);
+	return 0;
+}
+
+/**
+ * process_rxed_802_11_packet - processes a received 802.11 packet and forwards
+ * it to kernel/upper layer
+ *
+ * @priv:	A pointer to &struct lbs_private
+ * @skb:	A pointer to skb which includes the received packet
+ * returns:	0 or -1
+ */
+static int process_rxed_802_11_packet(struct lbs_private *priv,
+	struct sk_buff *skb)
+{
+	int ret = 0;
+	struct net_device *dev = priv->dev;
+	struct rx80211packethdr *p_rx_pkt;
+	struct rxpd *prxpd;
+	struct rx_radiotap_hdr radiotap_hdr;
+	struct rx_radiotap_hdr *pradiotap_hdr;
+
+	p_rx_pkt = (struct rx80211packethdr *) skb->data;
+	prxpd = &p_rx_pkt->rx_pd;
+
+	/* lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100)); */
+
+	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
+		lbs_deb_rx("rx err: frame received with bad length\n");
+		dev->stats.rx_length_errors++;
+		ret = -EINVAL;
+		kfree_skb(skb);
+		goto done;
+	}
+
+	lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
+	       skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
+
+	/* create the exported radio header */
+
+	/* radiotap header */
+	memset(&radiotap_hdr, 0, sizeof(radiotap_hdr));
+	/* XXX must check radiotap_hdr.hdr.it_pad for pad */
+	radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
+	radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
+	radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
+	/* XXX must check no carryout */
+	radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
+
+	/* chop the rxpd */
+	skb_pull(skb, sizeof(struct rxpd));
+
+	/* add space for the new radio header */
+	if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
+	    pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0, GFP_ATOMIC)) {
+		netdev_alert(dev, "%s: couldn't pskb_expand_head\n", __func__);
+		ret = -ENOMEM;
+		kfree_skb(skb);
+		goto done;
+	}
+
+	pradiotap_hdr = skb_push(skb, sizeof(struct rx_radiotap_hdr));
+	memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));
+
+	priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
+
+	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
+	dev->stats.rx_bytes += skb->len;
+	dev->stats.rx_packets++;
+
+	skb->protocol = eth_type_trans(skb, priv->dev);
+	netif_rx(skb);
+
+	ret = 0;
+
+done:
+	return ret;
+}
diff --git a/drivers/net/wireless/marvell/libertas/tx.c b/drivers/net/wireless/marvell/libertas/tx.c
new file mode 100644
index 0000000000..27304a9878
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/tx.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file contains the handling of TX in wlan driver.
+ */
+#include <linux/hardirq.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/sched.h>
+#include <linux/export.h>
+#include <net/cfg80211.h>
+
+#include "host.h"
+#include "radiotap.h"
+#include "decl.h"
+#include "defs.h"
+#include "dev.h"
+#include "mesh.h"
+
+/**
+ * convert_radiotap_rate_to_mv - converts Tx/Rx rates from IEEE80211_RADIOTAP_RATE
+ * units (500 Kb/s) into Marvell WLAN format (see Table 8 in Section 3.2.1)
+ *
+ * @rate:	Input rate
+ * returns:	Output Rate (0 if invalid)
+ */
+static u32 convert_radiotap_rate_to_mv(u8 rate)
+{
+	switch (rate) {
+	case 2:		/*   1 Mbps */
+		return 0 | (1 << 4);
+	case 4:		/*   2 Mbps */
+		return 1 | (1 << 4);
+	case 11:		/* 5.5 Mbps */
+		return 2 | (1 << 4);
+	case 22:		/*  11 Mbps */
+		return 3 | (1 << 4);
+	case 12:		/*   6 Mbps */
+		return 4 | (1 << 4);
+	case 18:		/*   9 Mbps */
+		return 5 | (1 << 4);
+	case 24:		/*  12 Mbps */
+		return 6 | (1 << 4);
+	case 36:		/*  18 Mbps */
+		return 7 | (1 << 4);
+	case 48:		/*  24 Mbps */
+		return 8 | (1 << 4);
+	case 72:		/*  36 Mbps */
+		return 9 | (1 << 4);
+	case 96:		/*  48 Mbps */
+		return 10 | (1 << 4);
+	case 108:		/*  54 Mbps */
+		return 11 | (1 << 4);
+	}
+	return 0;
+}
+
+/**
+ * lbs_hard_start_xmit - checks the conditions and sends packet to IF
+ * layer if everything is ok
+ *
+ * @skb:	A pointer to skb which includes TX packet
+ * @dev:	A pointer to the &struct net_device
+ * returns:	0 or -1
+ */
+netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	unsigned long flags;
+	struct lbs_private *priv = dev->ml_priv;
+	struct txpd *txpd;
+	char *p802x_hdr;
+	uint16_t pkt_len;
+	netdev_tx_t ret = NETDEV_TX_OK;
+
+	/* We need to protect against the queues being restarted before
+	   we get round to stopping them */
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (priv->surpriseremoved)
+		goto free;
+
+	if (!skb->len || (skb->len > MRVDRV_ETH_TX_PACKET_BUFFER_SIZE)) {
+		lbs_deb_tx("tx err: skb length %d 0 or > %zd\n",
+		       skb->len, MRVDRV_ETH_TX_PACKET_BUFFER_SIZE);
+		/* We'll never manage to send this one; drop it and return 'OK' */
+
+		dev->stats.tx_dropped++;
+		dev->stats.tx_errors++;
+		goto free;
+	}
+
+
+	netif_stop_queue(priv->dev);
+	if (priv->mesh_dev)
+		netif_stop_queue(priv->mesh_dev);
+
+	if (priv->tx_pending_len) {
+		/* This can happen if packets come in on the mesh and eth
+		   device simultaneously -- there's no mutual exclusion on
+		   hard_start_xmit() calls between devices. */
+		lbs_deb_tx("Packet on %s while busy\n", dev->name);
+		ret = NETDEV_TX_BUSY;
+		goto unlock;
+	}
+
+	priv->tx_pending_len = -1;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	lbs_deb_hex(LBS_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
+
+	txpd = (void *)priv->tx_pending_buf;
+	memset(txpd, 0, sizeof(struct txpd));
+
+	p802x_hdr = skb->data;
+	pkt_len = skb->len;
+
+	BUILD_BUG_ON(sizeof(txpd->tx_dest_addr) != ETH_ALEN);
+	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
+		struct tx_radiotap_hdr *rtap_hdr = (void *)skb->data;
+
+		/* set txpd fields from the radiotap header */
+		txpd->tx_control = cpu_to_le32(convert_radiotap_rate_to_mv(rtap_hdr->rate));
+
+		/* skip the radiotap header */
+		p802x_hdr += sizeof(*rtap_hdr);
+		pkt_len -= sizeof(*rtap_hdr);
+
+		/* copy destination address from 802.11 header */
+		memcpy(&txpd->tx_dest_addr, p802x_hdr + 4, ETH_ALEN);
+	} else {
+		/* copy destination address from 802.3 header */
+		memcpy(&txpd->tx_dest_addr, p802x_hdr, ETH_ALEN);
+	}
+
+	txpd->tx_packet_length = cpu_to_le16(pkt_len);
+	txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
+
+	lbs_mesh_set_txpd(priv, dev, txpd);
+
+	lbs_deb_hex(LBS_DEB_TX, "txpd", (u8 *) &txpd, sizeof(struct txpd));
+
+	lbs_deb_hex(LBS_DEB_TX, "Tx Data", (u8 *) p802x_hdr, le16_to_cpu(txpd->tx_packet_length));
+
+	memcpy(&txpd[1], p802x_hdr, le16_to_cpu(txpd->tx_packet_length));
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->tx_pending_len = pkt_len + sizeof(struct txpd);
+
+	lbs_deb_tx("%s lined up packet\n", __func__);
+
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
+
+	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
+		/* Keep the skb to echo it back once Tx feedback is
+		   received from FW */
+		skb_orphan(skb);
+
+		/* Keep the skb around for when we get feedback */
+		priv->currenttxskb = skb;
+	} else {
+ free:
+		dev_kfree_skb_any(skb);
+	}
+
+ unlock:
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	wake_up(&priv->waitq);
+
+	return ret;
+}
+
+/**
+ * lbs_send_tx_feedback - sends to the host the last transmitted packet,
+ * filling the radiotap headers with transmission information.
+ *
+ * @priv:	A pointer to &struct lbs_private structure
+ * @try_count:	A 32-bit value containing transmission retry status.
+ *
+ * returns:	void
+ */
+void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
+{
+	struct tx_radiotap_hdr *radiotap_hdr;
+
+	if (priv->wdev->iftype != NL80211_IFTYPE_MONITOR ||
+	    priv->currenttxskb == NULL)
+		return;
+
+	radiotap_hdr = (struct tx_radiotap_hdr *)priv->currenttxskb->data;
+
+	radiotap_hdr->data_retries = try_count ?
+		(1 + priv->txretrycount - try_count) : 0;
+
+	priv->currenttxskb->protocol = eth_type_trans(priv->currenttxskb,
+						      priv->dev);
+	netif_rx(priv->currenttxskb);
+
+	priv->currenttxskb = NULL;
+
+	if (priv->connect_status == LBS_CONNECTED)
+		netif_wake_queue(priv->dev);
+
+	if (priv->mesh_dev && netif_running(priv->mesh_dev))
+		netif_wake_queue(priv->mesh_dev);
+}
+EXPORT_SYMBOL_GPL(lbs_send_tx_feedback);
diff --git a/drivers/net/wireless/marvell/libertas/types.h b/drivers/net/wireless/marvell/libertas/types.h
new file mode 100644
index 0000000000..bad38d312d
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas/types.h
@@ -0,0 +1,270 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header file contains definition for global types
+ */
+#ifndef _LBS_TYPES_H_
+#define _LBS_TYPES_H_
+
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <asm/byteorder.h>
+
+struct ieee_ie_header {
+	u8 id;
+	u8 len;
+} __packed;
+
+struct ieee_ie_cf_param_set {
+	struct ieee_ie_header header;
+
+	u8 cfpcnt;
+	u8 cfpperiod;
+	__le16 cfpmaxduration;
+	__le16 cfpdurationremaining;
+} __packed;
+
+
+struct ieee_ie_ibss_param_set {
+	struct ieee_ie_header header;
+
+	__le16 atimwindow;
+} __packed;
+
+union ieee_ss_param_set {
+	struct ieee_ie_cf_param_set cf;
+	struct ieee_ie_ibss_param_set ibss;
+} __packed;
+
+struct ieee_ie_fh_param_set {
+	struct ieee_ie_header header;
+
+	__le16 dwelltime;
+	u8 hopset;
+	u8 hoppattern;
+	u8 hopindex;
+} __packed;
+
+struct ieee_ie_ds_param_set {
+	struct ieee_ie_header header;
+
+	u8 channel;
+} __packed;
+
+union ieee_phy_param_set {
+	struct ieee_ie_fh_param_set fh;
+	struct ieee_ie_ds_param_set ds;
+} __packed;
+
+/* TLV  type ID definition */
+#define PROPRIETARY_TLV_BASE_ID		0x0100
+
+/* Terminating TLV type */
+#define MRVL_TERMINATE_TLV_ID		0xffff
+
+#define TLV_TYPE_SSID				0x0000
+#define TLV_TYPE_RATES				0x0001
+#define TLV_TYPE_PHY_FH				0x0002
+#define TLV_TYPE_PHY_DS				0x0003
+#define TLV_TYPE_CF				    0x0004
+#define TLV_TYPE_IBSS				0x0006
+
+#define TLV_TYPE_DOMAIN				0x0007
+
+#define TLV_TYPE_POWER_CAPABILITY	0x0021
+
+#define TLV_TYPE_KEY_MATERIAL       (PROPRIETARY_TLV_BASE_ID + 0)
+#define TLV_TYPE_CHANLIST           (PROPRIETARY_TLV_BASE_ID + 1)
+#define TLV_TYPE_NUMPROBES          (PROPRIETARY_TLV_BASE_ID + 2)
+#define TLV_TYPE_RSSI_LOW           (PROPRIETARY_TLV_BASE_ID + 4)
+#define TLV_TYPE_SNR_LOW            (PROPRIETARY_TLV_BASE_ID + 5)
+#define TLV_TYPE_FAILCOUNT          (PROPRIETARY_TLV_BASE_ID + 6)
+#define TLV_TYPE_BCNMISS            (PROPRIETARY_TLV_BASE_ID + 7)
+#define TLV_TYPE_LED_GPIO           (PROPRIETARY_TLV_BASE_ID + 8)
+#define TLV_TYPE_LEDBEHAVIOR        (PROPRIETARY_TLV_BASE_ID + 9)
+#define TLV_TYPE_PASSTHROUGH        (PROPRIETARY_TLV_BASE_ID + 10)
+#define TLV_TYPE_REASSOCAP          (PROPRIETARY_TLV_BASE_ID + 11)
+#define TLV_TYPE_POWER_TBL_2_4GHZ   (PROPRIETARY_TLV_BASE_ID + 12)
+#define TLV_TYPE_POWER_TBL_5GHZ     (PROPRIETARY_TLV_BASE_ID + 13)
+#define TLV_TYPE_BCASTPROBE	    (PROPRIETARY_TLV_BASE_ID + 14)
+#define TLV_TYPE_NUMSSID_PROBE	    (PROPRIETARY_TLV_BASE_ID + 15)
+#define TLV_TYPE_WMMQSTATUS   	    (PROPRIETARY_TLV_BASE_ID + 16)
+#define TLV_TYPE_CRYPTO_DATA	    (PROPRIETARY_TLV_BASE_ID + 17)
+#define TLV_TYPE_WILDCARDSSID	    (PROPRIETARY_TLV_BASE_ID + 18)
+#define TLV_TYPE_TSFTIMESTAMP	    (PROPRIETARY_TLV_BASE_ID + 19)
+#define TLV_TYPE_RSSI_HIGH          (PROPRIETARY_TLV_BASE_ID + 22)
+#define TLV_TYPE_SNR_HIGH           (PROPRIETARY_TLV_BASE_ID + 23)
+#define TLV_TYPE_WPS_ENROLLEE       (PROPRIETARY_TLV_BASE_ID + 27)
+#define TLV_TYPE_AUTH_TYPE          (PROPRIETARY_TLV_BASE_ID + 31)
+#define TLV_TYPE_MESH_ID            (PROPRIETARY_TLV_BASE_ID + 37)
+#define TLV_TYPE_OLD_MESH_ID        (PROPRIETARY_TLV_BASE_ID + 291)
+
+/* TLV related data structures */
+struct mrvl_ie_header {
+	__le16 type;
+	__le16 len;
+} __packed;
+
+struct mrvl_ie_data {
+	struct mrvl_ie_header header;
+	u8 data[];
+} __packed;
+
+struct mrvl_ie_rates_param_set {
+	struct mrvl_ie_header header;
+	u8 rates[];
+} __packed;
+
+struct mrvl_ie_ssid_param_set {
+	struct mrvl_ie_header header;
+	u8 ssid[];
+} __packed;
+
+struct mrvl_ie_wildcard_ssid_param_set {
+	struct mrvl_ie_header header;
+	u8 maxssidlength;
+	u8 ssid[];
+} __packed;
+
+struct chanscanmode {
+#ifdef __BIG_ENDIAN_BITFIELD
+	u8 reserved_2_7:6;
+	u8 disablechanfilt:1;
+	u8 passivescan:1;
+#else
+	u8 passivescan:1;
+	u8 disablechanfilt:1;
+	u8 reserved_2_7:6;
+#endif
+} __packed;
+
+struct chanscanparamset {
+	u8 radiotype;
+	u8 channumber;
+	struct chanscanmode chanscanmode;
+	__le16 minscantime;
+	__le16 maxscantime;
+} __packed;
+
+struct mrvl_ie_chanlist_param_set {
+	struct mrvl_ie_header header;
+	struct chanscanparamset chanscanparam[];
+} __packed;
+
+struct mrvl_ie_cf_param_set {
+	struct mrvl_ie_header header;
+	u8 cfpcnt;
+	u8 cfpperiod;
+	__le16 cfpmaxduration;
+	__le16 cfpdurationremaining;
+} __packed;
+
+struct mrvl_ie_ds_param_set {
+	struct mrvl_ie_header header;
+	u8 channel;
+} __packed;
+
+struct mrvl_ie_rsn_param_set {
+	struct mrvl_ie_header header;
+	u8 rsnie[];
+} __packed;
+
+struct mrvl_ie_tsf_timestamp {
+	struct mrvl_ie_header header;
+	__le64 tsftable[];
+} __packed;
+
+/* v9 and later firmware only */
+struct mrvl_ie_auth_type {
+	struct mrvl_ie_header header;
+	__le16 auth;
+} __packed;
+
+/*  Local Power capability */
+struct mrvl_ie_power_capability {
+	struct mrvl_ie_header header;
+	s8 minpower;
+	s8 maxpower;
+} __packed;
+
+/* used in CMD_802_11_SUBSCRIBE_EVENT for SNR, RSSI and Failure */
+struct mrvl_ie_thresholds {
+	struct mrvl_ie_header header;
+	u8 value;
+	u8 freq;
+} __packed;
+
+struct mrvl_ie_beacons_missed {
+	struct mrvl_ie_header header;
+	u8 beaconmissed;
+	u8 reserved;
+} __packed;
+
+struct mrvl_ie_num_probes {
+	struct mrvl_ie_header header;
+	__le16 numprobes;
+} __packed;
+
+struct mrvl_ie_bcast_probe {
+	struct mrvl_ie_header header;
+	__le16 bcastprobe;
+} __packed;
+
+struct mrvl_ie_num_ssid_probe {
+	struct mrvl_ie_header header;
+	__le16 numssidprobe;
+} __packed;
+
+struct led_pin {
+	u8 led;
+	u8 pin;
+} __packed;
+
+struct mrvl_ie_ledgpio {
+	struct mrvl_ie_header header;
+	struct led_pin ledpin[];
+} __packed;
+
+struct led_bhv {
+	uint8_t	firmwarestate;
+	uint8_t	led;
+	uint8_t	ledstate;
+	uint8_t	ledarg;
+} __packed;
+
+
+struct mrvl_ie_ledbhv {
+	struct mrvl_ie_header header;
+	struct led_bhv ledbhv[];
+} __packed;
+
+/*
+ * Meant to be packed as the value member of a struct ieee80211_info_element.
+ * Note that the len member of the ieee80211_info_element varies depending on
+ * the mesh_id_len
+ */
+struct mrvl_meshie_val {
+	uint8_t oui[3];
+	uint8_t type;
+	uint8_t subtype;
+	uint8_t version;
+	uint8_t active_protocol_id;
+	uint8_t active_metric_id;
+	uint8_t mesh_capability;
+	uint8_t mesh_id_len;
+	uint8_t mesh_id[IEEE80211_MAX_SSID_LEN];
+} __packed;
+
+struct mrvl_meshie {
+	u8 id, len;
+	struct mrvl_meshie_val val;
+} __packed;
+
+struct mrvl_mesh_defaults {
+	__le32 bootflag;
+	uint8_t boottime;
+	uint8_t reserved;
+	__le16 channel;
+	struct mrvl_meshie meshie;
+} __packed;
+
+#endif