Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem

Conflicts:
	drivers/net/wireless/ath/ar9170/main.c
	drivers/net/wireless/ath/ar9170/phy.c
	drivers/net/wireless/zd1211rw/zd_rf_rf2959.c

1 files changed, 983 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..74add45b99b6
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -0,0 +1,983 @@
+/*
+ * 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;
+        struct host_cmd_ds_802_11_ps_mode_enh *pm;
+        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:
+                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.ps_bitmap) & BITMAP_STA_PS) &&
+                                priv->bss_mode == NL80211_IFTYPE_ADHOC)
+                        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;
+}