wireless: mwifiex: initial commit for Marvell mwifiex driver

This driver adds WiFi support for Marvell 802.11n based chipsets
with SDIO interface. Currently only SD8787 is supported. More
chipsets will be supported later.

drivers/net/wireless/mwifiex/

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Ramesh Radhakrishnan <rramesh@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 986 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
new file mode 100644
index 000000000000..ae960ddf2bd4
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -0,0 +1,986 @@
+/*
+ * Marvell Wireless LAN device driver: station command response handling
+ *
+ * Copyright (C) 2011, Marvell International Ltd.
+ *
+ * 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 by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.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.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+
+
+/*
+ * This function handles the command response error case.
+ *
+ * For scan response error, the function cancels all the pending
+ * scan commands and generates an event to inform the applications
+ * of the scan completion.
+ *
+ * For Power Save command failure, we do not retry enter PS
+ * command in case of Ad-hoc mode.
+ *
+ * For all other response errors, the current command buffer is freed
+ * and returned to the free command queue.
+ */
+static void
+mwifiex_process_cmdresp_error(struct mwifiex_private *priv,
+			      struct host_cmd_ds_command *resp,
+			      struct mwifiex_wait_queue *wq_buf)
+{
+	struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	unsigned long flags;
+
+	dev_err(adapter->dev, "CMD_RESP: cmd %#x error, result=%#x\n",
+			resp->command, resp->result);
+	if (wq_buf)
+		wq_buf->status = MWIFIEX_ERROR_FW_CMDRESP;
+
+	switch (le16_to_cpu(resp->command)) {
+	case HostCmd_CMD_802_11_PS_MODE_ENH:
+		{
+			struct host_cmd_ds_802_11_ps_mode_enh *pm =
+				&resp->params.psmode_enh;
+			dev_err(adapter->dev, "PS_MODE_ENH cmd failed: "
+				"result=0x%x action=0x%X\n",
+				resp->result, le16_to_cpu(pm->action));
+			/* We do not re-try enter-ps command in ad-hoc mode. */
+			if (le16_to_cpu(pm->action) == EN_AUTO_PS &&
+				(le16_to_cpu(pm->params.auto_ps.ps_bitmap) &
+				 BITMAP_STA_PS)
+				&& priv->bss_mode == MWIFIEX_BSS_MODE_IBSS)
+				adapter->ps_mode =
+					MWIFIEX_802_11_POWER_MODE_CAM;
+		}
+		break;
+	case HostCmd_CMD_802_11_SCAN:
+		/* Cancel all pending scan command */
+		spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+		list_for_each_entry_safe(cmd_node, tmp_node,
+					 &adapter->scan_pending_q, list) {
+			list_del(&cmd_node->list);
+			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
+					       flags);
+			mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+			spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+		}
+		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+
+		spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+		adapter->scan_processing = false;
+		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+		if (priv->report_scan_result)
+			priv->report_scan_result = false;
+		if (priv->scan_pending_on_block) {
+			priv->scan_pending_on_block = false;
+			up(&priv->async_sem);
+		}
+		break;
+
+	case HostCmd_CMD_MAC_CONTROL:
+		break;
+
+	default:
+		break;
+	}
+	/* Handling errors here */
+	mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
+
+	spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+	adapter->curr_cmd = NULL;
+	spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+	return;
+}
+
+/*
+ * This function handles the command response of get RSSI info.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the following parameters in driver -
+ *      - Last data and beacon RSSI value
+ *      - Average data and beacon RSSI value
+ *      - Last data and beacon NF value
+ *      - Average data and beacon NF value
+ *
+ * The parameters are send to the application as well, along with
+ * calculated SNR values.
+ */
+static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
+					struct host_cmd_ds_command *resp,
+					void *data_buf)
+{
+	struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
+		&resp->params.rssi_info_rsp;
+	struct mwifiex_ds_get_signal *signal = NULL;
+
+	priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last);
+	priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last);
+
+	priv->data_rssi_avg = le16_to_cpu(rssi_info_rsp->data_rssi_avg);
+	priv->data_nf_avg = le16_to_cpu(rssi_info_rsp->data_nf_avg);
+
+	priv->bcn_rssi_last = le16_to_cpu(rssi_info_rsp->bcn_rssi_last);
+	priv->bcn_nf_last = le16_to_cpu(rssi_info_rsp->bcn_nf_last);
+
+	priv->bcn_rssi_avg = le16_to_cpu(rssi_info_rsp->bcn_rssi_avg);
+	priv->bcn_nf_avg = le16_to_cpu(rssi_info_rsp->bcn_nf_avg);
+
+	/* Need to indicate IOCTL complete */
+	if (data_buf) {
+		signal = (struct mwifiex_ds_get_signal *) data_buf;
+		memset(signal, 0, sizeof(struct mwifiex_ds_get_signal));
+
+		signal->selector = ALL_RSSI_INFO_MASK;
+
+		/* RSSI */
+		signal->bcn_rssi_last = priv->bcn_rssi_last;
+		signal->bcn_rssi_avg = priv->bcn_rssi_avg;
+		signal->data_rssi_last = priv->data_rssi_last;
+		signal->data_rssi_avg = priv->data_rssi_avg;
+
+		/* SNR */
+		signal->bcn_snr_last =
+			CAL_SNR(priv->bcn_rssi_last, priv->bcn_nf_last);
+		signal->bcn_snr_avg =
+			CAL_SNR(priv->bcn_rssi_avg, priv->bcn_nf_avg);
+		signal->data_snr_last =
+			CAL_SNR(priv->data_rssi_last, priv->data_nf_last);
+		signal->data_snr_avg =
+			CAL_SNR(priv->data_rssi_avg, priv->data_nf_avg);
+
+		/* NF */
+		signal->bcn_nf_last = priv->bcn_nf_last;
+		signal->bcn_nf_avg = priv->bcn_nf_avg;
+		signal->data_nf_last = priv->data_nf_last;
+		signal->data_nf_avg = priv->data_nf_avg;
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get SNMP
+ * MIB parameters.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the parameter in driver.
+ *
+ * The following parameters are supported -
+ *      - Fragmentation threshold
+ *      - RTS threshold
+ *      - Short retry limit
+ */
+static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
+				       struct host_cmd_ds_command *resp,
+				       void *data_buf)
+{
+	struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
+	u16 oid = le16_to_cpu(smib->oid);
+	u16 query_type = le16_to_cpu(smib->query_type);
+	u32 ul_temp;
+
+	dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x,"
+			" query_type = %#x, buf size = %#x\n",
+			oid, query_type, le16_to_cpu(smib->buf_size));
+	if (query_type == HostCmd_ACT_GEN_GET) {
+		ul_temp = le16_to_cpu(*((__le16 *) (smib->value)));
+		if (data_buf)
+			*(u32 *)data_buf = ul_temp;
+		switch (oid) {
+		case FRAG_THRESH_I:
+			dev_dbg(priv->adapter->dev,
+				"info: SNMP_RESP: FragThsd =%u\n", ul_temp);
+			break;
+		case RTS_THRESH_I:
+			dev_dbg(priv->adapter->dev,
+				"info: SNMP_RESP: RTSThsd =%u\n", ul_temp);
+			break;
+		case SHORT_RETRY_LIM_I:
+			dev_dbg(priv->adapter->dev,
+				"info: SNMP_RESP: TxRetryCount=%u\n", ul_temp);
+			break;
+		default:
+			break;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of get log request
+ *
+ * Handling includes changing the header fields into CPU format
+ * and sending the received parameters to application.
+ */
+static int mwifiex_ret_get_log(struct mwifiex_private *priv,
+			       struct host_cmd_ds_command *resp,
+			       void *data_buf)
+{
+	struct host_cmd_ds_802_11_get_log *get_log =
+		(struct host_cmd_ds_802_11_get_log *) &resp->params.get_log;
+	struct mwifiex_ds_get_stats *stats = NULL;
+
+	if (data_buf) {
+		stats = (struct mwifiex_ds_get_stats *) data_buf;
+		stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame);
+		stats->failed = le32_to_cpu(get_log->failed);
+		stats->retry = le32_to_cpu(get_log->retry);
+		stats->multi_retry = le32_to_cpu(get_log->multi_retry);
+		stats->frame_dup = le32_to_cpu(get_log->frame_dup);
+		stats->rts_success = le32_to_cpu(get_log->rts_success);
+		stats->rts_failure = le32_to_cpu(get_log->rts_failure);
+		stats->ack_failure = le32_to_cpu(get_log->ack_failure);
+		stats->rx_frag = le32_to_cpu(get_log->rx_frag);
+		stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame);
+		stats->fcs_error = le32_to_cpu(get_log->fcs_error);
+		stats->tx_frame = le32_to_cpu(get_log->tx_frame);
+		stats->wep_icv_error[0] =
+			le32_to_cpu(get_log->wep_icv_err_cnt[0]);
+		stats->wep_icv_error[1] =
+			le32_to_cpu(get_log->wep_icv_err_cnt[1]);
+		stats->wep_icv_error[2] =
+			le32_to_cpu(get_log->wep_icv_err_cnt[2]);
+		stats->wep_icv_error[3] =
+			le32_to_cpu(get_log->wep_icv_err_cnt[3]);
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get Tx rate
+ * configurations.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the following parameters in driver -
+ *      - DSSS rate bitmap
+ *      - OFDM rate bitmap
+ *      - HT MCS rate bitmaps
+ *
+ * Based on the new rate bitmaps, the function re-evaluates if
+ * auto data rate has been activated. If not, it sends another
+ * query to the firmware to get the current Tx data rate and updates
+ * the driver value.
+ */
+static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
+				   struct host_cmd_ds_command *resp,
+				   void *data_buf)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_rate_cfg *ds_rate = NULL;
+	struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
+	struct mwifiex_rate_scope *rate_scope;
+	struct mwifiex_ie_types_header *head = NULL;
+	u16 tlv, tlv_buf_len;
+	u8 *tlv_buf;
+	u32 i;
+	int ret = 0;
+
+	tlv_buf = (u8 *) ((u8 *) rate_cfg) +
+			sizeof(struct host_cmd_ds_tx_rate_cfg);
+	tlv_buf_len = *(u16 *) (tlv_buf + sizeof(u16));
+
+	while (tlv_buf && tlv_buf_len > 0) {
+		tlv = (*tlv_buf);
+		tlv = tlv | (*(tlv_buf + 1) << 8);
+
+		switch (tlv) {
+		case TLV_TYPE_RATE_SCOPE:
+			rate_scope = (struct mwifiex_rate_scope *) tlv_buf;
+			priv->bitmap_rates[0] =
+				le16_to_cpu(rate_scope->hr_dsss_rate_bitmap);
+			priv->bitmap_rates[1] =
+				le16_to_cpu(rate_scope->ofdm_rate_bitmap);
+			for (i = 0;
+			     i <
+			     sizeof(rate_scope->ht_mcs_rate_bitmap) /
+			     sizeof(u16); i++)
+				priv->bitmap_rates[2 + i] =
+					le16_to_cpu(rate_scope->
+						    ht_mcs_rate_bitmap[i]);
+			break;
+			/* Add RATE_DROP tlv here */
+		}
+
+		head = (struct mwifiex_ie_types_header *) tlv_buf;
+		tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
+		tlv_buf_len -= le16_to_cpu(head->len);
+	}
+
+	priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
+
+	if (priv->is_data_rate_auto)
+		priv->data_rate = 0;
+	else
+		ret = mwifiex_prepare_cmd(priv,
+					  HostCmd_CMD_802_11_TX_RATE_QUERY,
+					  HostCmd_ACT_GEN_GET, 0, NULL, NULL);
+
+	if (data_buf) {
+		ds_rate = (struct mwifiex_rate_cfg *) data_buf;
+		if (le16_to_cpu(rate_cfg->action) == HostCmd_ACT_GEN_GET) {
+			if (priv->is_data_rate_auto) {
+				ds_rate->is_rate_auto = 1;
+			} else {
+				ds_rate->rate =
+					mwifiex_get_rate_index(adapter,
+							       priv->
+							       bitmap_rates,
+							       sizeof(priv->
+							       bitmap_rates));
+				if (ds_rate->rate >=
+				    MWIFIEX_RATE_BITMAP_OFDM0
+				    && ds_rate->rate <=
+				    MWIFIEX_RATE_BITMAP_OFDM7)
+					ds_rate->rate -=
+						(MWIFIEX_RATE_BITMAP_OFDM0 -
+						 MWIFIEX_RATE_INDEX_OFDM0);
+				if (ds_rate->rate >=
+				    MWIFIEX_RATE_BITMAP_MCS0
+				    && ds_rate->rate <=
+				    MWIFIEX_RATE_BITMAP_MCS127)
+					ds_rate->rate -=
+						(MWIFIEX_RATE_BITMAP_MCS0 -
+						 MWIFIEX_RATE_INDEX_MCS0);
+			}
+		}
+	}
+
+	return ret;
+}
+
+/*
+ * This function handles the command response of get Tx power level.
+ *
+ * Handling includes saving the maximum and minimum Tx power levels
+ * in driver, as well as sending the values to user.
+ */
+static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
+{
+	int length = -1, max_power = -1, min_power = -1;
+	struct mwifiex_types_power_group *pg_tlv_hdr = NULL;
+	struct mwifiex_power_group *pg = NULL;
+
+	if (data_buf) {
+		pg_tlv_hdr =
+			(struct mwifiex_types_power_group *) ((u8 *) data_buf
+					+ sizeof(struct host_cmd_ds_txpwr_cfg));
+		pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr +
+				sizeof(struct mwifiex_types_power_group));
+		length = pg_tlv_hdr->length;
+		if (length > 0) {
+			max_power = pg->power_max;
+			min_power = pg->power_min;
+			length -= sizeof(struct mwifiex_power_group);
+		}
+		while (length) {
+			pg++;
+			if (max_power < pg->power_max)
+				max_power = pg->power_max;
+
+			if (min_power > pg->power_min)
+				min_power = pg->power_min;
+
+			length -= sizeof(struct mwifiex_power_group);
+		}
+		if (pg_tlv_hdr->length > 0) {
+			priv->min_tx_power_level = (u8) min_power;
+			priv->max_tx_power_level = (u8) max_power;
+		}
+	} else {
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get Tx power
+ * configurations.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the current Tx power level in driver.
+ */
+static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
+				    struct host_cmd_ds_command *resp,
+				    void *data_buf)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
+	struct mwifiex_types_power_group *pg_tlv_hdr = NULL;
+	struct mwifiex_power_group *pg = NULL;
+	u16 action = le16_to_cpu(txp_cfg->action);
+
+	switch (action) {
+	case HostCmd_ACT_GEN_GET:
+		{
+			pg_tlv_hdr =
+				(struct mwifiex_types_power_group *) ((u8 *)
+						txp_cfg +
+						sizeof
+						(struct
+						 host_cmd_ds_txpwr_cfg));
+			pg = (struct mwifiex_power_group *) ((u8 *)
+						pg_tlv_hdr +
+						sizeof(struct
+						mwifiex_types_power_group));
+			if (adapter->hw_status ==
+			    MWIFIEX_HW_STATUS_INITIALIZING)
+				mwifiex_get_power_level(priv, txp_cfg);
+			priv->tx_power_level = (u16) pg->power_min;
+			break;
+		}
+	case HostCmd_ACT_GEN_SET:
+		if (le32_to_cpu(txp_cfg->mode)) {
+			pg_tlv_hdr =
+				(struct mwifiex_types_power_group *) ((u8 *)
+						txp_cfg +
+						sizeof
+						(struct
+						 host_cmd_ds_txpwr_cfg));
+			pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr
+						+
+						sizeof(struct
+						mwifiex_types_power_group));
+			if (pg->power_max == pg->power_min)
+				priv->tx_power_level = (u16) pg->power_min;
+		}
+		break;
+	default:
+		dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n",
+				action);
+		return 0;
+	}
+	dev_dbg(adapter->dev,
+		"info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
+	       priv->tx_power_level, priv->max_tx_power_level,
+	       priv->min_tx_power_level);
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get MAC address.
+ *
+ * Handling includes saving the MAC address in driver.
+ */
+static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv,
+					  struct host_cmd_ds_command *resp)
+{
+	struct host_cmd_ds_802_11_mac_address *cmd_mac_addr =
+		&resp->params.mac_addr;
+
+	memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN);
+
+	dev_dbg(priv->adapter->dev,
+		"info: set mac address: %pM\n", priv->curr_addr);
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get MAC multicast
+ * address.
+ */
+static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv,
+					 struct host_cmd_ds_command *resp)
+{
+	return 0;
+}
+
+/*
+ * This function handles the command response of get Tx rate query.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the Tx rate and HT information parameters in driver.
+ *
+ * Both rate configuration and current data rate can be retrieved
+ * with this request.
+ */
+static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv,
+					    struct host_cmd_ds_command *resp)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	priv->tx_rate = resp->params.tx_rate.tx_rate;
+	priv->tx_htinfo = resp->params.tx_rate.ht_info;
+	if (!priv->is_data_rate_auto)
+		priv->data_rate =
+			mwifiex_index_to_data_rate(adapter, priv->tx_rate,
+						   priv->tx_htinfo);
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of a deauthenticate
+ * command.
+ *
+ * If the deauthenticated MAC matches the current BSS MAC, the connection
+ * state is reset.
+ */
+static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv,
+					     struct host_cmd_ds_command *resp)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	adapter->dbg.num_cmd_deauth++;
+	if (!memcmp(resp->params.deauth.mac_addr,
+		    &priv->curr_bss_params.bss_descriptor.mac_address,
+		    sizeof(resp->params.deauth.mac_addr)))
+		mwifiex_reset_connect_state(priv);
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of ad-hoc stop.
+ *
+ * The function resets the connection state in driver.
+ */
+static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv,
+					  struct host_cmd_ds_command *resp)
+{
+	mwifiex_reset_connect_state(priv);
+	return 0;
+}
+
+/*
+ * This function handles the command response of set/get key material.
+ *
+ * Handling includes updating the driver parameters to reflect the
+ * changes.
+ */
+static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv,
+					   struct host_cmd_ds_command *resp)
+{
+	struct host_cmd_ds_802_11_key_material *key =
+		&resp->params.key_material;
+
+	if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) {
+		if ((le16_to_cpu(key->key_param_set.key_info) &
+		     KEY_INFO_TKIP_MCAST)) {
+			dev_dbg(priv->adapter->dev, "info: key: GTK is set\n");
+			priv->wpa_is_gtk_set = true;
+			priv->scan_block = false;
+		}
+	}
+
+	memset(priv->aes_key.key_param_set.key, 0,
+	       sizeof(key->key_param_set.key));
+	priv->aes_key.key_param_set.key_len = key->key_param_set.key_len;
+	memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key,
+	       le16_to_cpu(priv->aes_key.key_param_set.key_len));
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of get 11d domain information.
+ */
+static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv,
+					   struct host_cmd_ds_command *resp)
+{
+	struct host_cmd_ds_802_11d_domain_info_rsp *domain_info =
+		&resp->params.domain_info_resp;
+	struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain;
+	u16 action = le16_to_cpu(domain_info->action);
+	u8 no_of_triplet = 0;
+
+	no_of_triplet = (u8) ((le16_to_cpu(domain->header.len) -
+					IEEE80211_COUNTRY_STRING_LEN) /
+				sizeof(struct ieee80211_country_ie_triplet));
+
+	dev_dbg(priv->adapter->dev, "info: 11D Domain Info Resp:"
+			" no_of_triplet=%d\n", no_of_triplet);
+
+	if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) {
+		dev_warn(priv->adapter->dev,
+			"11D: invalid number of triplets %d "
+			"returned!!\n", no_of_triplet);
+		return -1;
+	}
+
+	switch (action) {
+	case HostCmd_ACT_GEN_SET:  /* Proc Set Action */
+		break;
+	case HostCmd_ACT_GEN_GET:
+		break;
+	default:
+		dev_err(priv->adapter->dev,
+			"11D: invalid action:%d\n", domain_info->action);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of get RF channel.
+ *
+ * Handling includes changing the header fields into CPU format
+ * and saving the new channel in driver.
+ */
+static int mwifiex_ret_802_11_rf_channel(struct mwifiex_private *priv,
+					 struct host_cmd_ds_command *resp,
+					 void *data_buf)
+{
+	struct host_cmd_ds_802_11_rf_channel *rf_channel =
+		&resp->params.rf_channel;
+	u16 new_channel = le16_to_cpu(rf_channel->current_channel);
+
+	if (priv->curr_bss_params.bss_descriptor.channel != new_channel) {
+		dev_dbg(priv->adapter->dev, "cmd: Channel Switch: %d to %d\n",
+		       priv->curr_bss_params.bss_descriptor.channel,
+		       new_channel);
+		/* Update the channel again */
+		priv->curr_bss_params.bss_descriptor.channel = new_channel;
+	}
+	if (data_buf)
+		*((u16 *)data_buf) = new_channel;
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of get extended version.
+ *
+ * Handling includes forming the extended version string and sending it
+ * to application.
+ */
+static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
+			       struct host_cmd_ds_command *resp,
+			       void *data_buf)
+{
+	struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
+	struct host_cmd_ds_version_ext *version_ext = NULL;
+
+	if (data_buf) {
+		version_ext = (struct host_cmd_ds_version_ext *)data_buf;
+		version_ext->version_str_sel = ver_ext->version_str_sel;
+		memcpy(version_ext->version_str, ver_ext->version_str,
+		       sizeof(char) * 128);
+		memcpy(priv->version_str, ver_ext->version_str, 128);
+	}
+	return 0;
+}
+
+/*
+ * This function handles the command response of register access.
+ *
+ * The register value and offset are returned to the user. For EEPROM
+ * access, the byte count is also returned.
+ */
+static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp,
+				  void *data_buf)
+{
+	struct mwifiex_ds_reg_rw *reg_rw = NULL;
+	struct mwifiex_ds_read_eeprom *eeprom = NULL;
+
+	if (data_buf) {
+		reg_rw = (struct mwifiex_ds_reg_rw *) data_buf;
+		eeprom = (struct mwifiex_ds_read_eeprom *) data_buf;
+		switch (type) {
+		case HostCmd_CMD_MAC_REG_ACCESS:
+			{
+				struct host_cmd_ds_mac_reg_access *reg;
+				reg = (struct host_cmd_ds_mac_reg_access *)
+					&resp->params.mac_reg;
+				reg_rw->offset = cpu_to_le32(
+					(u32) le16_to_cpu(reg->offset));
+				reg_rw->value = reg->value;
+				break;
+			}
+		case HostCmd_CMD_BBP_REG_ACCESS:
+			{
+				struct host_cmd_ds_bbp_reg_access *reg;
+				reg = (struct host_cmd_ds_bbp_reg_access *)
+					&resp->params.bbp_reg;
+				reg_rw->offset = cpu_to_le32(
+					(u32) le16_to_cpu(reg->offset));
+				reg_rw->value = cpu_to_le32((u32) reg->value);
+				break;
+			}
+
+		case HostCmd_CMD_RF_REG_ACCESS:
+			{
+				struct host_cmd_ds_rf_reg_access *reg;
+				reg = (struct host_cmd_ds_rf_reg_access *)
+					&resp->params.rf_reg;
+				reg_rw->offset = cpu_to_le32(
+					(u32) le16_to_cpu(reg->offset));
+				reg_rw->value = cpu_to_le32((u32) reg->value);
+				break;
+			}
+		case HostCmd_CMD_PMIC_REG_ACCESS:
+			{
+				struct host_cmd_ds_pmic_reg_access *reg;
+				reg = (struct host_cmd_ds_pmic_reg_access *)
+					&resp->params.pmic_reg;
+				reg_rw->offset = cpu_to_le32(
+					(u32) le16_to_cpu(reg->offset));
+				reg_rw->value = cpu_to_le32((u32) reg->value);
+				break;
+			}
+		case HostCmd_CMD_CAU_REG_ACCESS:
+			{
+				struct host_cmd_ds_rf_reg_access *reg;
+				reg = (struct host_cmd_ds_rf_reg_access *)
+					&resp->params.rf_reg;
+				reg_rw->offset = cpu_to_le32(
+					(u32) le16_to_cpu(reg->offset));
+				reg_rw->value = cpu_to_le32((u32) reg->value);
+				break;
+			}
+		case HostCmd_CMD_802_11_EEPROM_ACCESS:
+			{
+				struct host_cmd_ds_802_11_eeprom_access
+					*cmd_eeprom =
+					(struct host_cmd_ds_802_11_eeprom_access
+					 *) &resp->params.eeprom;
+				pr_debug("info: EEPROM read len=%x\n",
+				       cmd_eeprom->byte_count);
+				if (le16_to_cpu(eeprom->byte_count) <
+						le16_to_cpu(
+						cmd_eeprom->byte_count)) {
+					eeprom->byte_count = cpu_to_le16(0);
+					pr_debug("info: EEPROM read "
+							"length is too big\n");
+					return -1;
+				}
+				eeprom->offset = cmd_eeprom->offset;
+				eeprom->byte_count = cmd_eeprom->byte_count;
+				if (le16_to_cpu(eeprom->byte_count) > 0)
+					memcpy(&eeprom->value,
+					       &cmd_eeprom->value,
+					       le16_to_cpu(eeprom->byte_count));
+
+				break;
+			}
+		default:
+			return -1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * This function handles the command response of get IBSS coalescing status.
+ *
+ * If the received BSSID is different than the current one, the current BSSID,
+ * beacon interval, ATIM window and ERP information are updated, along with
+ * changing the ad-hoc state accordingly.
+ */
+static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
+					      struct host_cmd_ds_command *resp)
+{
+	struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
+		&(resp->params.ibss_coalescing);
+	u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
+
+	if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
+		return 0;
+
+	dev_dbg(priv->adapter->dev,
+		"info: new BSSID %pM\n", ibss_coal_resp->bssid);
+
+	/* If rsp has NULL BSSID, Just return..... No Action */
+	if (!memcmp(ibss_coal_resp->bssid, zero_mac, ETH_ALEN)) {
+		dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
+		return 0;
+	}
+
+	/* If BSSID is diff, modify current BSS parameters */
+	if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
+		   ibss_coal_resp->bssid, ETH_ALEN)) {
+		/* BSSID */
+		memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
+		       ibss_coal_resp->bssid, ETH_ALEN);
+
+		/* Beacon Interval */
+		priv->curr_bss_params.bss_descriptor.beacon_period
+			= le16_to_cpu(ibss_coal_resp->beacon_interval);
+
+		/* ERP Information */
+		priv->curr_bss_params.bss_descriptor.erp_flags =
+			(u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect);
+
+		priv->adhoc_state = ADHOC_COALESCED;
+	}
+
+	return 0;
+}
+
+/*
+ * This function handles the command responses.
+ *
+ * This is a generic function, which calls command specific
+ * response handlers based on the command ID.
+ */
+int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv,
+				u16 cmdresp_no, void *cmd_buf, void *wq_buf)
+{
+	int ret = 0;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct host_cmd_ds_command *resp =
+		(struct host_cmd_ds_command *) cmd_buf;
+	struct mwifiex_wait_queue *wait_queue =
+		(struct mwifiex_wait_queue *) wq_buf;
+	void *data_buf = adapter->curr_cmd->data_buf;
+
+	/* If the command is not successful, cleanup and return failure */
+	if (resp->result != HostCmd_RESULT_OK) {
+		mwifiex_process_cmdresp_error(priv, resp, wait_queue);
+		return -1;
+	}
+	/* Command successful, handle response */
+	switch (cmdresp_no) {
+	case HostCmd_CMD_GET_HW_SPEC:
+		ret = mwifiex_ret_get_hw_spec(priv, resp);
+		break;
+	case HostCmd_CMD_MAC_CONTROL:
+		break;
+	case HostCmd_CMD_802_11_MAC_ADDRESS:
+		ret = mwifiex_ret_802_11_mac_address(priv, resp);
+		break;
+	case HostCmd_CMD_MAC_MULTICAST_ADR:
+		ret = mwifiex_ret_mac_multicast_adr(priv, resp);
+		break;
+	case HostCmd_CMD_TX_RATE_CFG:
+		ret = mwifiex_ret_tx_rate_cfg(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_802_11_SCAN:
+		ret = mwifiex_ret_802_11_scan(priv, resp, wait_queue);
+		wait_queue = NULL;
+		adapter->curr_cmd->wq_buf = NULL;
+		break;
+	case HostCmd_CMD_802_11_BG_SCAN_QUERY:
+		ret = mwifiex_ret_802_11_scan(priv, resp, wait_queue);
+		dev_dbg(adapter->dev,
+			"info: CMD_RESP: BG_SCAN result is ready!\n");
+		break;
+	case HostCmd_CMD_TXPWR_CFG:
+		ret = mwifiex_ret_tx_power_cfg(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_802_11_PS_MODE_ENH:
+		ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_802_11_HS_CFG_ENH:
+		ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
+		break;
+	case HostCmd_CMD_802_11_ASSOCIATE:
+		ret = mwifiex_ret_802_11_associate(priv, resp, wait_queue);
+		break;
+	case HostCmd_CMD_802_11_DEAUTHENTICATE:
+		ret = mwifiex_ret_802_11_deauthenticate(priv, resp);
+		break;
+	case HostCmd_CMD_802_11_AD_HOC_START:
+	case HostCmd_CMD_802_11_AD_HOC_JOIN:
+		ret = mwifiex_ret_802_11_ad_hoc(priv, resp, wait_queue);
+		break;
+	case HostCmd_CMD_802_11_AD_HOC_STOP:
+		ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp);
+		break;
+	case HostCmd_CMD_802_11_GET_LOG:
+		ret = mwifiex_ret_get_log(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_RSSI_INFO:
+		ret = mwifiex_ret_802_11_rssi_info(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_802_11_SNMP_MIB:
+		ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_802_11_TX_RATE_QUERY:
+		ret = mwifiex_ret_802_11_tx_rate_query(priv, resp);
+		break;
+	case HostCmd_CMD_802_11_RF_CHANNEL:
+		ret = mwifiex_ret_802_11_rf_channel(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_VERSION_EXT:
+		ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_FUNC_INIT:
+	case HostCmd_CMD_FUNC_SHUTDOWN:
+		break;
+	case HostCmd_CMD_802_11_KEY_MATERIAL:
+		ret = mwifiex_ret_802_11_key_material(priv, resp);
+		break;
+	case HostCmd_CMD_802_11D_DOMAIN_INFO:
+		ret = mwifiex_ret_802_11d_domain_info(priv, resp);
+		break;
+	case HostCmd_CMD_11N_ADDBA_REQ:
+		ret = mwifiex_ret_11n_addba_req(priv, resp);
+		break;
+	case HostCmd_CMD_11N_DELBA:
+		ret = mwifiex_ret_11n_delba(priv, resp);
+		break;
+	case HostCmd_CMD_11N_ADDBA_RSP:
+		ret = mwifiex_ret_11n_addba_resp(priv, resp);
+		break;
+	case HostCmd_CMD_RECONFIGURE_TX_BUFF:
+		adapter->tx_buf_size = (u16) le16_to_cpu(resp->params.
+							     tx_buf.buff_size);
+		adapter->tx_buf_size = (adapter->tx_buf_size /
+						MWIFIEX_SDIO_BLOCK_SIZE) *
+						MWIFIEX_SDIO_BLOCK_SIZE;
+		adapter->curr_tx_buf_size = adapter->tx_buf_size;
+		dev_dbg(adapter->dev,
+			"cmd: max_tx_buf_size=%d, tx_buf_size=%d\n",
+		       adapter->max_tx_buf_size, adapter->tx_buf_size);
+
+		if (adapter->if_ops.update_mp_end_port)
+			adapter->if_ops.update_mp_end_port(adapter,
+					le16_to_cpu(resp->
+						params.
+						tx_buf.
+						mp_end_port));
+		break;
+	case HostCmd_CMD_AMSDU_AGGR_CTRL:
+		ret = mwifiex_ret_amsdu_aggr_ctrl(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_WMM_GET_STATUS:
+		ret = mwifiex_ret_wmm_get_status(priv, resp);
+		break;
+	case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
+		ret = mwifiex_ret_ibss_coalescing_status(priv, resp);
+		break;
+	case HostCmd_CMD_MAC_REG_ACCESS:
+	case HostCmd_CMD_BBP_REG_ACCESS:
+	case HostCmd_CMD_RF_REG_ACCESS:
+	case HostCmd_CMD_PMIC_REG_ACCESS:
+	case HostCmd_CMD_CAU_REG_ACCESS:
+	case HostCmd_CMD_802_11_EEPROM_ACCESS:
+		ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf);
+		break;
+	case HostCmd_CMD_SET_BSS_MODE:
+		break;
+	case HostCmd_CMD_11N_CFG:
+		ret = mwifiex_ret_11n_cfg(priv, resp, data_buf);
+		break;
+	default:
+		dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n",
+		       resp->command);
+		break;
+	}
+
+	return ret;
+}