Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 1597 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/libertas/cmd.c b/drivers/net/wireless/marvell/libertas/cmd.c
new file mode 100644
index 000000000..104d2b6dc
--- /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);