sta_cmd.c

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/*
 * Marvell Wireless LAN device driver: station command 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 prepares command to set/get RSSI information.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting data/beacon average factors
 *      - Resetting SNR/NF/RSSI values in private structure
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_802_11_rssi_info(struct mwifiex_private *priv,
                 struct host_cmd_ds_command *cmd, u16 cmd_action)
{
    cmd->command = cpu_to_le16(HostCmd_CMD_RSSI_INFO);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_rssi_info) +
                S_DS_GEN);
    cmd->params.rssi_info.action = cpu_to_le16(cmd_action);
    cmd->params.rssi_info.ndata = cpu_to_le16(priv->data_avg_factor);
    cmd->params.rssi_info.nbcn = cpu_to_le16(priv->bcn_avg_factor);

    /* Reset SNR/NF/RSSI values in private structure */
    priv->data_rssi_last = 0;
    priv->data_nf_last = 0;
    priv->data_rssi_avg = 0;
    priv->data_nf_avg = 0;
    priv->bcn_rssi_last = 0;
    priv->bcn_nf_last = 0;
    priv->bcn_rssi_avg = 0;
    priv->bcn_nf_avg = 0;

    return 0;
}

/*
 * This function prepares command to set MAC control.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_mac_control(struct mwifiex_private *priv,
                   struct host_cmd_ds_command *cmd,
                   u16 cmd_action, u16 *action)
{
    struct host_cmd_ds_mac_control *mac_ctrl = &cmd->params.mac_ctrl;

    if (cmd_action != HostCmd_ACT_GEN_SET) {
        dev_err(priv->adapter->dev,
            "mac_control: only support set cmd\n");
        return -1;
    }

    cmd->command = cpu_to_le16(HostCmd_CMD_MAC_CONTROL);
    cmd->size =
        cpu_to_le16(sizeof(struct host_cmd_ds_mac_control) + S_DS_GEN);
    mac_ctrl->action = cpu_to_le16(*action);

    return 0;
}

/*
 * This function prepares command to set/get SNMP MIB.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting SNMP MIB OID number and value
 *        (as required)
 *      - Ensuring correct endian-ness
 *
 * The following SNMP MIB OIDs are supported -
 *      - FRAG_THRESH_I     : Fragmentation threshold
 *      - RTS_THRESH_I      : RTS threshold
 *      - SHORT_RETRY_LIM_I : Short retry limit
 *      - DOT11D_I          : 11d support
 */
static int mwifiex_cmd_802_11_snmp_mib(struct mwifiex_private *priv,
                       struct host_cmd_ds_command *cmd,
                       u16 cmd_action, u32 cmd_oid,
                       u16 *ul_temp)
{
    struct host_cmd_ds_802_11_snmp_mib *snmp_mib = &cmd->params.smib;

    dev_dbg(priv->adapter->dev, "cmd: SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_SNMP_MIB);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_snmp_mib)
                - 1 + S_DS_GEN);

    snmp_mib->oid = cpu_to_le16((u16)cmd_oid);
    if (cmd_action == HostCmd_ACT_GEN_GET) {
        snmp_mib->query_type = cpu_to_le16(HostCmd_ACT_GEN_GET);
        snmp_mib->buf_size = cpu_to_le16(MAX_SNMP_BUF_SIZE);
        le16_add_cpu(&cmd->size, MAX_SNMP_BUF_SIZE);
    } else if (cmd_action == HostCmd_ACT_GEN_SET) {
        snmp_mib->query_type = cpu_to_le16(HostCmd_ACT_GEN_SET);
        snmp_mib->buf_size = cpu_to_le16(sizeof(u16));
        *((__le16 *) (snmp_mib->value)) = cpu_to_le16(*ul_temp);
        le16_add_cpu(&cmd->size, sizeof(u16));
    }

    dev_dbg(priv->adapter->dev,
        "cmd: SNMP_CMD: Action=0x%x, OID=0x%x, OIDSize=0x%x,"
        " Value=0x%x\n",
        cmd_action, cmd_oid, le16_to_cpu(snmp_mib->buf_size),
        le16_to_cpu(*(__le16 *) snmp_mib->value));
    return 0;
}

/*
 * This function prepares command to get log.
 *
 * Preparation includes -
 *      - Setting command ID and proper size
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_802_11_get_log(struct host_cmd_ds_command *cmd)
{
    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_GET_LOG);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_get_log) +
                S_DS_GEN);
    return 0;
}

/*
 * This function prepares command to set/get Tx data rate configuration.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting configuration index, rate scope and rate drop pattern
 *        parameters (as required)
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_tx_rate_cfg(struct mwifiex_private *priv,
                   struct host_cmd_ds_command *cmd,
                   u16 cmd_action, u16 *pbitmap_rates)
{
    struct host_cmd_ds_tx_rate_cfg *rate_cfg = &cmd->params.tx_rate_cfg;
    struct mwifiex_rate_scope *rate_scope;
    struct mwifiex_rate_drop_pattern *rate_drop;
    u32 i;

    cmd->command = cpu_to_le16(HostCmd_CMD_TX_RATE_CFG);

    rate_cfg->action = cpu_to_le16(cmd_action);
    rate_cfg->cfg_index = 0;

    rate_scope = (struct mwifiex_rate_scope *) ((u8 *) rate_cfg +
              sizeof(struct host_cmd_ds_tx_rate_cfg));
    rate_scope->type = cpu_to_le16(TLV_TYPE_RATE_SCOPE);
    rate_scope->length = cpu_to_le16
        (sizeof(*rate_scope) - sizeof(struct mwifiex_ie_types_header));
    if (pbitmap_rates != NULL) {
        rate_scope->hr_dsss_rate_bitmap = cpu_to_le16(pbitmap_rates[0]);
        rate_scope->ofdm_rate_bitmap = cpu_to_le16(pbitmap_rates[1]);
        for (i = 0;
             i < sizeof(rate_scope->ht_mcs_rate_bitmap) / sizeof(u16);
             i++)
            rate_scope->ht_mcs_rate_bitmap[i] =
                cpu_to_le16(pbitmap_rates[2 + i]);
    } else {
        rate_scope->hr_dsss_rate_bitmap =
            cpu_to_le16(priv->bitmap_rates[0]);
        rate_scope->ofdm_rate_bitmap =
            cpu_to_le16(priv->bitmap_rates[1]);
        for (i = 0;
             i < sizeof(rate_scope->ht_mcs_rate_bitmap) / sizeof(u16);
             i++)
            rate_scope->ht_mcs_rate_bitmap[i] =
                cpu_to_le16(priv->bitmap_rates[2 + i]);
    }

    rate_drop = (struct mwifiex_rate_drop_pattern *) ((u8 *) rate_scope +
                         sizeof(struct mwifiex_rate_scope));
    rate_drop->type = cpu_to_le16(TLV_TYPE_RATE_DROP_CONTROL);
    rate_drop->length = cpu_to_le16(sizeof(rate_drop->rate_drop_mode));
    rate_drop->rate_drop_mode = 0;

    cmd->size =
        cpu_to_le16(S_DS_GEN + sizeof(struct host_cmd_ds_tx_rate_cfg) +
                sizeof(struct mwifiex_rate_scope) +
                sizeof(struct mwifiex_rate_drop_pattern));

    return 0;
}

/*
 * This function prepares command to set/get Tx power configuration.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting Tx power mode, power group TLV
 *        (as required)
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_tx_power_cfg(struct host_cmd_ds_command *cmd,
                    u16 cmd_action,
                    struct host_cmd_ds_txpwr_cfg *txp)
{
    struct mwifiex_types_power_group *pg_tlv;
    struct host_cmd_ds_txpwr_cfg *cmd_txp_cfg = &cmd->params.txp_cfg;

    cmd->command = cpu_to_le16(HostCmd_CMD_TXPWR_CFG);
    cmd->size =
        cpu_to_le16(S_DS_GEN + sizeof(struct host_cmd_ds_txpwr_cfg));
    switch (cmd_action) {
    case HostCmd_ACT_GEN_SET:
        if (txp->mode) {
            pg_tlv = (struct mwifiex_types_power_group
                  *) ((unsigned long) txp +
                     sizeof(struct host_cmd_ds_txpwr_cfg));
            memmove(cmd_txp_cfg, txp,
                sizeof(struct host_cmd_ds_txpwr_cfg) +
                sizeof(struct mwifiex_types_power_group) +
                pg_tlv->length);

            pg_tlv = (struct mwifiex_types_power_group *) ((u8 *)
                  cmd_txp_cfg +
                  sizeof(struct host_cmd_ds_txpwr_cfg));
            cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) +
                  sizeof(struct mwifiex_types_power_group) +
                  pg_tlv->length);
        } else {
            memmove(cmd_txp_cfg, txp, sizeof(*txp));
        }
        cmd_txp_cfg->action = cpu_to_le16(cmd_action);
        break;
    case HostCmd_ACT_GEN_GET:
        cmd_txp_cfg->action = cpu_to_le16(cmd_action);
        break;
    }

    return 0;
}

/*
 * This function prepares command to get RF Tx power.
 */
static int mwifiex_cmd_rf_tx_power(struct mwifiex_private *priv,
                   struct host_cmd_ds_command *cmd,
                   u16 cmd_action, void *data_buf)
{
    struct host_cmd_ds_rf_tx_pwr *txp = &cmd->params.txp;

    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_tx_pwr)
                + S_DS_GEN);
    cmd->command = cpu_to_le16(HostCmd_CMD_RF_TX_PWR);
    txp->action = cpu_to_le16(cmd_action);

    return 0;
}

/*
 * This function prepares command to set rf antenna.
 */
static int mwifiex_cmd_rf_antenna(struct mwifiex_private *priv,
                  struct host_cmd_ds_command *cmd,
                  u16 cmd_action,
                  struct mwifiex_ds_ant_cfg *ant_cfg)
{
    struct host_cmd_ds_rf_ant_mimo *ant_mimo = &cmd->params.ant_mimo;
    struct host_cmd_ds_rf_ant_siso *ant_siso = &cmd->params.ant_siso;

    cmd->command = cpu_to_le16(HostCmd_CMD_RF_ANTENNA);

    if (cmd_action != HostCmd_ACT_GEN_SET)
        return 0;

    if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) {
        cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_mimo) +
                    S_DS_GEN);
        ant_mimo->action_tx = cpu_to_le16(HostCmd_ACT_SET_TX);
        ant_mimo->tx_ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant);
        ant_mimo->action_rx = cpu_to_le16(HostCmd_ACT_SET_RX);
        ant_mimo->rx_ant_mode = cpu_to_le16((u16)ant_cfg->rx_ant);
    } else {
        cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_siso) +
                    S_DS_GEN);
        ant_siso->action = cpu_to_le16(HostCmd_ACT_SET_BOTH);
        ant_siso->ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant);
    }

    return 0;
}

/*
 * This function prepares command to set Host Sleep configuration.
 *
 * Preparation includes -
 *      - Setting command ID and proper size
 *      - Setting Host Sleep action, conditions, ARP filters
 *        (as required)
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_802_11_hs_cfg(struct mwifiex_private *priv,
              struct host_cmd_ds_command *cmd,
              u16 cmd_action,
              struct mwifiex_hs_config_param *hscfg_param)
{
    struct mwifiex_adapter *adapter = priv->adapter;
    struct host_cmd_ds_802_11_hs_cfg_enh *hs_cfg = &cmd->params.opt_hs_cfg;
    u16 hs_activate = false;

    if (!hscfg_param)
        /* New Activate command */
        hs_activate = true;
    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH);

    if (!hs_activate &&
        (hscfg_param->conditions != cpu_to_le32(HOST_SLEEP_CFG_CANCEL)) &&
        ((adapter->arp_filter_size > 0) &&
         (adapter->arp_filter_size <= ARP_FILTER_MAX_BUF_SIZE))) {
        dev_dbg(adapter->dev,
            "cmd: Attach %d bytes ArpFilter to HSCfg cmd\n",
            adapter->arp_filter_size);
        memcpy(((u8 *) hs_cfg) +
               sizeof(struct host_cmd_ds_802_11_hs_cfg_enh),
               adapter->arp_filter, adapter->arp_filter_size);
        cmd->size = cpu_to_le16
                (adapter->arp_filter_size +
                 sizeof(struct host_cmd_ds_802_11_hs_cfg_enh)
                + S_DS_GEN);
    } else {
        cmd->size = cpu_to_le16(S_DS_GEN + sizeof(struct
                        host_cmd_ds_802_11_hs_cfg_enh));
    }
    if (hs_activate) {
        hs_cfg->action = cpu_to_le16(HS_ACTIVATE);
        hs_cfg->params.hs_activate.resp_ctrl = RESP_NEEDED;
    } else {
        hs_cfg->action = cpu_to_le16(HS_CONFIGURE);
        hs_cfg->params.hs_config.conditions = hscfg_param->conditions;
        hs_cfg->params.hs_config.gpio = hscfg_param->gpio;
        hs_cfg->params.hs_config.gap = hscfg_param->gap;
        dev_dbg(adapter->dev,
            "cmd: HS_CFG_CMD: condition:0x%x gpio:0x%x gap:0x%x\n",
               hs_cfg->params.hs_config.conditions,
               hs_cfg->params.hs_config.gpio,
               hs_cfg->params.hs_config.gap);
    }

    return 0;
}

/*
 * This function prepares command to set/get MAC address.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting MAC address (for SET only)
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_802_11_mac_address(struct mwifiex_private *priv,
                      struct host_cmd_ds_command *cmd,
                      u16 cmd_action)
{
    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_MAC_ADDRESS);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_mac_address) +
                S_DS_GEN);
    cmd->result = 0;

    cmd->params.mac_addr.action = cpu_to_le16(cmd_action);

    if (cmd_action == HostCmd_ACT_GEN_SET)
        memcpy(cmd->params.mac_addr.mac_addr, priv->curr_addr,
               ETH_ALEN);
    return 0;
}

/*
 * This function prepares command to set MAC multicast address.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting MAC multicast address
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_mac_multicast_adr(struct host_cmd_ds_command *cmd,
                  u16 cmd_action,
                  struct mwifiex_multicast_list *mcast_list)
{
    struct host_cmd_ds_mac_multicast_adr *mcast_addr = &cmd->params.mc_addr;

    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_mac_multicast_adr) +
                S_DS_GEN);
    cmd->command = cpu_to_le16(HostCmd_CMD_MAC_MULTICAST_ADR);

    mcast_addr->action = cpu_to_le16(cmd_action);
    mcast_addr->num_of_adrs =
        cpu_to_le16((u16) mcast_list->num_multicast_addr);
    memcpy(mcast_addr->mac_list, mcast_list->mac_list,
           mcast_list->num_multicast_addr * ETH_ALEN);

    return 0;
}

/*
 * This function prepares command to deauthenticate.
 *
 * Preparation includes -
 *      - Setting command ID and proper size
 *      - Setting AP MAC address and reason code
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_802_11_deauthenticate(struct mwifiex_private *priv,
                         struct host_cmd_ds_command *cmd,
                         u8 *mac)
{
    struct host_cmd_ds_802_11_deauthenticate *deauth = &cmd->params.deauth;

    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_DEAUTHENTICATE);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_deauthenticate)
                + S_DS_GEN);

    /* Set AP MAC address */
    memcpy(deauth->mac_addr, mac, ETH_ALEN);

    dev_dbg(priv->adapter->dev, "cmd: Deauth: %pM\n", deauth->mac_addr);

    deauth->reason_code = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);

    return 0;
}

/*
 * This function prepares command to stop Ad-Hoc network.
 *
 * Preparation includes -
 *      - Setting command ID and proper size
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_802_11_ad_hoc_stop(struct host_cmd_ds_command *cmd)
{
    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_STOP);
    cmd->size = cpu_to_le16(S_DS_GEN);
    return 0;
}

/*
 * This function sets WEP key(s) to key parameter TLV(s).
 *
 * Multi-key parameter TLVs are supported, so we can send multiple
 * WEP keys in a single buffer.
 */
static int
mwifiex_set_keyparamset_wep(struct mwifiex_private *priv,
                struct mwifiex_ie_type_key_param_set *key_param_set,
                u16 *key_param_len)
{
    int cur_key_param_len;
    u8 i;

    /* Multi-key_param_set TLV is supported */
    for (i = 0; i < NUM_WEP_KEYS; i++) {
        if ((priv->wep_key[i].key_length == WLAN_KEY_LEN_WEP40) ||
            (priv->wep_key[i].key_length == WLAN_KEY_LEN_WEP104)) {
            key_param_set->type =
                cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
/* Key_param_set WEP fixed length */
#define KEYPARAMSET_WEP_FIXED_LEN 8
            key_param_set->length = cpu_to_le16((u16)
                    (priv->wep_key[i].
                     key_length +
                     KEYPARAMSET_WEP_FIXED_LEN));
            key_param_set->key_type_id =
                cpu_to_le16(KEY_TYPE_ID_WEP);
            key_param_set->key_info =
                cpu_to_le16(KEY_ENABLED | KEY_UNICAST |
                        KEY_MCAST);
            key_param_set->key_len =
                cpu_to_le16(priv->wep_key[i].key_length);
            /* Set WEP key index */
            key_param_set->key[0] = i;
            /* Set default Tx key flag */
            if (i ==
                (priv->
                 wep_key_curr_index & HostCmd_WEP_KEY_INDEX_MASK))
                key_param_set->key[1] = 1;
            else
                key_param_set->key[1] = 0;
            memmove(&key_param_set->key[2],
                priv->wep_key[i].key_material,
                priv->wep_key[i].key_length);

            cur_key_param_len = priv->wep_key[i].key_length +
                KEYPARAMSET_WEP_FIXED_LEN +
                sizeof(struct mwifiex_ie_types_header);
            *key_param_len += (u16) cur_key_param_len;
            key_param_set =
                (struct mwifiex_ie_type_key_param_set *)
                        ((u8 *)key_param_set +
                         cur_key_param_len);
        } else if (!priv->wep_key[i].key_length) {
            continue;
        } else {
            dev_err(priv->adapter->dev,
                "key%d Length = %d is incorrect\n",
                   (i + 1), priv->wep_key[i].key_length);
            return -1;
        }
    }

    return 0;
}

/*
 * This function prepares command to set/get/reset network key(s).
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting WEP keys, WAPI keys or WPA keys along with required
 *        encryption (TKIP, AES) (as required)
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
                struct host_cmd_ds_command *cmd,
                u16 cmd_action, u32 cmd_oid,
                struct mwifiex_ds_encrypt_key *enc_key)
{
    struct host_cmd_ds_802_11_key_material *key_material =
        &cmd->params.key_material;
    struct host_cmd_tlv_mac_addr *tlv_mac;
    u16 key_param_len = 0, cmd_size;
    int ret = 0;

    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_KEY_MATERIAL);
    key_material->action = cpu_to_le16(cmd_action);

    if (cmd_action == HostCmd_ACT_GEN_GET) {
        cmd->size =
            cpu_to_le16(sizeof(key_material->action) + S_DS_GEN);
        return ret;
    }

    if (!enc_key) {
        memset(&key_material->key_param_set, 0,
               (NUM_WEP_KEYS *
            sizeof(struct mwifiex_ie_type_key_param_set)));
        ret = mwifiex_set_keyparamset_wep(priv,
                          &key_material->key_param_set,
                          &key_param_len);
        cmd->size = cpu_to_le16(key_param_len +
                    sizeof(key_material->action) + S_DS_GEN);
        return ret;
    } else
        memset(&key_material->key_param_set, 0,
               sizeof(struct mwifiex_ie_type_key_param_set));
    if (enc_key->is_wapi_key) {
        dev_dbg(priv->adapter->dev, "info: Set WAPI Key\n");
        key_material->key_param_set.key_type_id =
                        cpu_to_le16(KEY_TYPE_ID_WAPI);
        if (cmd_oid == KEY_INFO_ENABLED)
            key_material->key_param_set.key_info =
                        cpu_to_le16(KEY_ENABLED);
        else
            key_material->key_param_set.key_info =
                        cpu_to_le16(!KEY_ENABLED);

        key_material->key_param_set.key[0] = enc_key->key_index;
        if (!priv->sec_info.wapi_key_on)
            key_material->key_param_set.key[1] = 1;
        else
            /* set 0 when re-key */
            key_material->key_param_set.key[1] = 0;

        if (!is_broadcast_ether_addr(enc_key->mac_addr)) {
            /* WAPI pairwise key: unicast */
            key_material->key_param_set.key_info |=
                cpu_to_le16(KEY_UNICAST);
        } else {    /* WAPI group key: multicast */
            key_material->key_param_set.key_info |=
                cpu_to_le16(KEY_MCAST);
            priv->sec_info.wapi_key_on = true;
        }

        key_material->key_param_set.type =
                    cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
        key_material->key_param_set.key_len =
                        cpu_to_le16(WAPI_KEY_LEN);
        memcpy(&key_material->key_param_set.key[2],
               enc_key->key_material, enc_key->key_len);
        memcpy(&key_material->key_param_set.key[2 + enc_key->key_len],
               enc_key->pn, PN_LEN);
        key_material->key_param_set.length =
            cpu_to_le16(WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN);

        key_param_len = (WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN) +
                 sizeof(struct mwifiex_ie_types_header);
        cmd->size = cpu_to_le16(sizeof(key_material->action)
                    + S_DS_GEN +  key_param_len);
        return ret;
    }
    if (enc_key->key_len == WLAN_KEY_LEN_CCMP) {
        if (enc_key->is_igtk_key) {
            dev_dbg(priv->adapter->dev, "cmd: CMAC_AES\n");
            key_material->key_param_set.key_type_id =
                    cpu_to_le16(KEY_TYPE_ID_AES_CMAC);
            if (cmd_oid == KEY_INFO_ENABLED)
                key_material->key_param_set.key_info =
                        cpu_to_le16(KEY_ENABLED);
            else
                key_material->key_param_set.key_info =
                        cpu_to_le16(!KEY_ENABLED);

            key_material->key_param_set.key_info |=
                            cpu_to_le16(KEY_IGTK);
        } else {
            dev_dbg(priv->adapter->dev, "cmd: WPA_AES\n");
            key_material->key_param_set.key_type_id =
                        cpu_to_le16(KEY_TYPE_ID_AES);
            if (cmd_oid == KEY_INFO_ENABLED)
                key_material->key_param_set.key_info =
                        cpu_to_le16(KEY_ENABLED);
            else
                key_material->key_param_set.key_info =
                        cpu_to_le16(!KEY_ENABLED);

            if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
                /* AES pairwise key: unicast */
                key_material->key_param_set.key_info |=
                        cpu_to_le16(KEY_UNICAST);
            else    /* AES group key: multicast */
                key_material->key_param_set.key_info |=
                            cpu_to_le16(KEY_MCAST);
        }
    } else if (enc_key->key_len == WLAN_KEY_LEN_TKIP) {
        dev_dbg(priv->adapter->dev, "cmd: WPA_TKIP\n");
        key_material->key_param_set.key_type_id =
                        cpu_to_le16(KEY_TYPE_ID_TKIP);
        key_material->key_param_set.key_info =
                        cpu_to_le16(KEY_ENABLED);

        if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
                /* TKIP pairwise key: unicast */
            key_material->key_param_set.key_info |=
                        cpu_to_le16(KEY_UNICAST);
        else        /* TKIP group key: multicast */
            key_material->key_param_set.key_info |=
                            cpu_to_le16(KEY_MCAST);
    }

    if (key_material->key_param_set.key_type_id) {
        key_material->key_param_set.type =
                    cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
        key_material->key_param_set.key_len =
                    cpu_to_le16((u16) enc_key->key_len);
        memcpy(key_material->key_param_set.key, enc_key->key_material,
               enc_key->key_len);
        key_material->key_param_set.length =
            cpu_to_le16((u16) enc_key->key_len +
                    KEYPARAMSET_FIXED_LEN);

        key_param_len = (u16)(enc_key->key_len + KEYPARAMSET_FIXED_LEN)
                + sizeof(struct mwifiex_ie_types_header);

        if (le16_to_cpu(key_material->key_param_set.key_type_id) ==
                            KEY_TYPE_ID_AES_CMAC) {
            struct mwifiex_cmac_param *param =
                    (void *)key_material->key_param_set.key;

            memcpy(param->ipn, enc_key->pn, IGTK_PN_LEN);
            memcpy(param->key, enc_key->key_material,
                   WLAN_KEY_LEN_AES_CMAC);

            key_param_len = sizeof(struct mwifiex_cmac_param);
            key_material->key_param_set.key_len =
                        cpu_to_le16(key_param_len);
            key_param_len += KEYPARAMSET_FIXED_LEN;
            key_material->key_param_set.length =
                        cpu_to_le16(key_param_len);
            key_param_len += sizeof(struct mwifiex_ie_types_header);
        }

        cmd->size = cpu_to_le16(sizeof(key_material->action) + S_DS_GEN
                    + key_param_len);

        if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
            tlv_mac = (void *)((u8 *)&key_material->key_param_set +
                       key_param_len);
            tlv_mac->tlv.type = cpu_to_le16(TLV_TYPE_STA_MAC_ADDR);
            tlv_mac->tlv.len = cpu_to_le16(ETH_ALEN);
            memcpy(tlv_mac->mac_addr, enc_key->mac_addr, ETH_ALEN);
            cmd_size = key_param_len + S_DS_GEN +
                   sizeof(key_material->action) +
                   sizeof(struct host_cmd_tlv_mac_addr);
        } else {
            cmd_size = key_param_len + S_DS_GEN +
                   sizeof(key_material->action);
        }
        cmd->size = cpu_to_le16(cmd_size);
    }

    return ret;
}

/*
 * This function prepares command to set/get 11d domain information.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting domain information fields (for SET only)
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_802_11d_domain_info(struct mwifiex_private *priv,
                       struct host_cmd_ds_command *cmd,
                       u16 cmd_action)
{
    struct mwifiex_adapter *adapter = priv->adapter;
    struct host_cmd_ds_802_11d_domain_info *domain_info =
        &cmd->params.domain_info;
    struct mwifiex_ietypes_domain_param_set *domain =
        &domain_info->domain;
    u8 no_of_triplet = adapter->domain_reg.no_of_triplet;

    dev_dbg(adapter->dev, "info: 11D: no_of_triplet=0x%x\n", no_of_triplet);

    cmd->command = cpu_to_le16(HostCmd_CMD_802_11D_DOMAIN_INFO);
    domain_info->action = cpu_to_le16(cmd_action);
    if (cmd_action == HostCmd_ACT_GEN_GET) {
        cmd->size = cpu_to_le16(sizeof(domain_info->action) + S_DS_GEN);
        return 0;
    }

    /* Set domain info fields */
    domain->header.type = cpu_to_le16(WLAN_EID_COUNTRY);
    memcpy(domain->country_code, adapter->domain_reg.country_code,
           sizeof(domain->country_code));

    domain->header.len =
        cpu_to_le16((no_of_triplet *
                 sizeof(struct ieee80211_country_ie_triplet))
                + sizeof(domain->country_code));

    if (no_of_triplet) {
        memcpy(domain->triplet, adapter->domain_reg.triplet,
               no_of_triplet * sizeof(struct
                          ieee80211_country_ie_triplet));

        cmd->size = cpu_to_le16(sizeof(domain_info->action) +
                    le16_to_cpu(domain->header.len) +
                    sizeof(struct mwifiex_ie_types_header)
                    + S_DS_GEN);
    } else {
        cmd->size = cpu_to_le16(sizeof(domain_info->action) + S_DS_GEN);
    }

    return 0;
}

/*
 * This function prepares command to set/get IBSS coalescing status.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting status to enable or disable (for SET only)
 *      - Ensuring correct endian-ness
 */
static int mwifiex_cmd_ibss_coalescing_status(struct host_cmd_ds_command *cmd,
                          u16 cmd_action, u16 *enable)
{
    struct host_cmd_ds_802_11_ibss_status *ibss_coal =
        &(cmd->params.ibss_coalescing);

    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_IBSS_COALESCING_STATUS);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_ibss_status) +
                S_DS_GEN);
    cmd->result = 0;
    ibss_coal->action = cpu_to_le16(cmd_action);

    switch (cmd_action) {
    case HostCmd_ACT_GEN_SET:
        if (enable)
            ibss_coal->enable = cpu_to_le16(*enable);
        else
            ibss_coal->enable = 0;
        break;

        /* In other case.. Nothing to do */
    case HostCmd_ACT_GEN_GET:
    default:
        break;
    }

    return 0;
}

/*
 * This function prepares command to set/get register value.
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting register offset (for both GET and SET) and
 *        register value (for SET only)
 *      - Ensuring correct endian-ness
 *
 * The following type of registers can be accessed with this function -
 *      - MAC register
 *      - BBP register
 *      - RF register
 *      - PMIC register
 *      - CAU register
 *      - EEPROM
 */
static int mwifiex_cmd_reg_access(struct host_cmd_ds_command *cmd,
                  u16 cmd_action, void *data_buf)
{
    struct mwifiex_ds_reg_rw *reg_rw = data_buf;

    switch (le16_to_cpu(cmd->command)) {
    case HostCmd_CMD_MAC_REG_ACCESS:
    {
        struct host_cmd_ds_mac_reg_access *mac_reg;

        cmd->size = cpu_to_le16(sizeof(*mac_reg) + S_DS_GEN);
        mac_reg = &cmd->params.mac_reg;
        mac_reg->action = cpu_to_le16(cmd_action);
        mac_reg->offset =
            cpu_to_le16((u16) le32_to_cpu(reg_rw->offset));
        mac_reg->value = reg_rw->value;
        break;
    }
    case HostCmd_CMD_BBP_REG_ACCESS:
    {
        struct host_cmd_ds_bbp_reg_access *bbp_reg;

        cmd->size = cpu_to_le16(sizeof(*bbp_reg) + S_DS_GEN);
        bbp_reg = &cmd->params.bbp_reg;
        bbp_reg->action = cpu_to_le16(cmd_action);
        bbp_reg->offset =
            cpu_to_le16((u16) le32_to_cpu(reg_rw->offset));
        bbp_reg->value = (u8) le32_to_cpu(reg_rw->value);
        break;
    }
    case HostCmd_CMD_RF_REG_ACCESS:
    {
        struct host_cmd_ds_rf_reg_access *rf_reg;

        cmd->size = cpu_to_le16(sizeof(*rf_reg) + S_DS_GEN);
        rf_reg = &cmd->params.rf_reg;
        rf_reg->action = cpu_to_le16(cmd_action);
        rf_reg->offset = cpu_to_le16((u16) le32_to_cpu(reg_rw->offset));
        rf_reg->value = (u8) le32_to_cpu(reg_rw->value);
        break;
    }
    case HostCmd_CMD_PMIC_REG_ACCESS:
    {
        struct host_cmd_ds_pmic_reg_access *pmic_reg;

        cmd->size = cpu_to_le16(sizeof(*pmic_reg) + S_DS_GEN);
        pmic_reg = &cmd->params.pmic_reg;
        pmic_reg->action = cpu_to_le16(cmd_action);
        pmic_reg->offset =
                cpu_to_le16((u16) le32_to_cpu(reg_rw->offset));
        pmic_reg->value = (u8) le32_to_cpu(reg_rw->value);
        break;
    }
    case HostCmd_CMD_CAU_REG_ACCESS:
    {
        struct host_cmd_ds_rf_reg_access *cau_reg;

        cmd->size = cpu_to_le16(sizeof(*cau_reg) + S_DS_GEN);
        cau_reg = &cmd->params.rf_reg;
        cau_reg->action = cpu_to_le16(cmd_action);
        cau_reg->offset =
                cpu_to_le16((u16) le32_to_cpu(reg_rw->offset));
        cau_reg->value = (u8) le32_to_cpu(reg_rw->value);
        break;
    }
    case HostCmd_CMD_802_11_EEPROM_ACCESS:
    {
        struct mwifiex_ds_read_eeprom *rd_eeprom = data_buf;
        struct host_cmd_ds_802_11_eeprom_access *cmd_eeprom =
            &cmd->params.eeprom;

        cmd->size = cpu_to_le16(sizeof(*cmd_eeprom) + S_DS_GEN);
        cmd_eeprom->action = cpu_to_le16(cmd_action);
        cmd_eeprom->offset = rd_eeprom->offset;
        cmd_eeprom->byte_count = rd_eeprom->byte_count;
        cmd_eeprom->value = 0;
        break;
    }
    default:
        return -1;
    }

    return 0;
}

/*
 * This function prepares command to set PCI-Express
 * host buffer configuration
 *
 * Preparation includes -
 *      - Setting command ID, action and proper size
 *      - Setting host buffer configuration
 *      - Ensuring correct endian-ness
 */
static int
mwifiex_cmd_pcie_host_spec(struct mwifiex_private *priv,
               struct host_cmd_ds_command *cmd, u16 action)
{
    struct host_cmd_ds_pcie_details *host_spec =
                    &cmd->params.pcie_host_spec;
    struct pcie_service_card *card = priv->adapter->card;
    phys_addr_t *buf_pa;

    cmd->command = cpu_to_le16(HostCmd_CMD_PCIE_DESC_DETAILS);
    cmd->size = cpu_to_le16(sizeof(struct
                    host_cmd_ds_pcie_details) + S_DS_GEN);
    cmd->result = 0;

    memset(host_spec, 0, sizeof(struct host_cmd_ds_pcie_details));

    if (action != HostCmd_ACT_GEN_SET)
        return 0;

    /* Send the ring base addresses and count to firmware */
    host_spec->txbd_addr_lo = (u32)(card->txbd_ring_pbase);
    host_spec->txbd_addr_hi = (u32)(((u64)card->txbd_ring_pbase)>>32);
    host_spec->txbd_count = MWIFIEX_MAX_TXRX_BD;
    host_spec->rxbd_addr_lo = (u32)(card->rxbd_ring_pbase);
    host_spec->rxbd_addr_hi = (u32)(((u64)card->rxbd_ring_pbase)>>32);
    host_spec->rxbd_count = MWIFIEX_MAX_TXRX_BD;
    host_spec->evtbd_addr_lo = (u32)(card->evtbd_ring_pbase);
    host_spec->evtbd_addr_hi = (u32)(((u64)card->evtbd_ring_pbase)>>32);
    host_spec->evtbd_count = MWIFIEX_MAX_EVT_BD;
    if (card->sleep_cookie) {
        buf_pa = MWIFIEX_SKB_PACB(card->sleep_cookie);
        host_spec->sleep_cookie_addr_lo = (u32) *buf_pa;
        host_spec->sleep_cookie_addr_hi = (u32) (((u64)*buf_pa) >> 32);
        dev_dbg(priv->adapter->dev, "sleep_cook_lo phy addr: 0x%x\n",
            host_spec->sleep_cookie_addr_lo);
    }

    return 0;
}

/*
 * This function prepares command for event subscription, configuration
 * and query. Events can be subscribed or unsubscribed. Current subscribed
 * events can be queried. Also, current subscribed events are reported in
 * every FW response.
 */
static int
mwifiex_cmd_802_11_subsc_evt(struct mwifiex_private *priv,
                 struct host_cmd_ds_command *cmd,
                 struct mwifiex_ds_misc_subsc_evt *subsc_evt_cfg)
{
    struct host_cmd_ds_802_11_subsc_evt *subsc_evt = &cmd->params.subsc_evt;
    struct mwifiex_ie_types_rssi_threshold *rssi_tlv;
    u16 event_bitmap;
    u8 *pos;

    cmd->command = cpu_to_le16(HostCmd_CMD_802_11_SUBSCRIBE_EVENT);
    cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_subsc_evt) +
                S_DS_GEN);

    subsc_evt->action = cpu_to_le16(subsc_evt_cfg->action);
    dev_dbg(priv->adapter->dev, "cmd: action: %d\n", subsc_evt_cfg->action);

    /*For query requests, no configuration TLV structures are to be added.*/
    if (subsc_evt_cfg->action == HostCmd_ACT_GEN_GET)
        return 0;

    subsc_evt->events = cpu_to_le16(subsc_evt_cfg->events);

    event_bitmap = subsc_evt_cfg->events;
    dev_dbg(priv->adapter->dev, "cmd: event bitmap : %16x\n",
        event_bitmap);

    if (((subsc_evt_cfg->action == HostCmd_ACT_BITWISE_CLR) ||
         (subsc_evt_cfg->action == HostCmd_ACT_BITWISE_SET)) &&
        (event_bitmap == 0)) {
        dev_dbg(priv->adapter->dev, "Error: No event specified "
            "for bitwise action type\n");
        return -EINVAL;
    }

    /*
     * Append TLV structures for each of the specified events for
     * subscribing or re-configuring. This is not required for
     * bitwise unsubscribing request.
     */
    if (subsc_evt_cfg->action == HostCmd_ACT_BITWISE_CLR)
        return 0;

    pos = ((u8 *)subsc_evt) +
            sizeof(struct host_cmd_ds_802_11_subsc_evt);

    if (event_bitmap & BITMASK_BCN_RSSI_LOW) {
        rssi_tlv = (struct mwifiex_ie_types_rssi_threshold *) pos;

        rssi_tlv->header.type = cpu_to_le16(TLV_TYPE_RSSI_LOW);
        rssi_tlv->header.len =
            cpu_to_le16(sizeof(struct mwifiex_ie_types_rssi_threshold) -
                sizeof(struct mwifiex_ie_types_header));
        rssi_tlv->abs_value = subsc_evt_cfg->bcn_l_rssi_cfg.abs_value;
        rssi_tlv->evt_freq = subsc_evt_cfg->bcn_l_rssi_cfg.evt_freq;

        dev_dbg(priv->adapter->dev, "Cfg Beacon Low Rssi event, "
            "RSSI:-%d dBm, Freq:%d\n",
            subsc_evt_cfg->bcn_l_rssi_cfg.abs_value,
            subsc_evt_cfg->bcn_l_rssi_cfg.evt_freq);

        pos += sizeof(struct mwifiex_ie_types_rssi_threshold);
        le16_add_cpu(&cmd->size,
                 sizeof(struct mwifiex_ie_types_rssi_threshold));
    }

    if (event_bitmap & BITMASK_BCN_RSSI_HIGH) {
        rssi_tlv = (struct mwifiex_ie_types_rssi_threshold *) pos;

        rssi_tlv->header.type = cpu_to_le16(TLV_TYPE_RSSI_HIGH);
        rssi_tlv->header.len =
            cpu_to_le16(sizeof(struct mwifiex_ie_types_rssi_threshold) -
                sizeof(struct mwifiex_ie_types_header));
        rssi_tlv->abs_value = subsc_evt_cfg->bcn_h_rssi_cfg.abs_value;
        rssi_tlv->evt_freq = subsc_evt_cfg->bcn_h_rssi_cfg.evt_freq;

        dev_dbg(priv->adapter->dev, "Cfg Beacon High Rssi event, "
            "RSSI:-%d dBm, Freq:%d\n",
            subsc_evt_cfg->bcn_h_rssi_cfg.abs_value,
            subsc_evt_cfg->bcn_h_rssi_cfg.evt_freq);

        pos += sizeof(struct mwifiex_ie_types_rssi_threshold);
        le16_add_cpu(&cmd->size,
                 sizeof(struct mwifiex_ie_types_rssi_threshold));
    }

    return 0;
}

/*
 * This function prepares the commands before sending them to the firmware.
 *
 * This is a generic function which calls specific command preparation
 * routines based upon the command number.
 */
int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
                u16 cmd_action, u32 cmd_oid,
                void *data_buf, void *cmd_buf)
{
    struct host_cmd_ds_command *cmd_ptr = cmd_buf;
    int ret = 0;

    /* Prepare command */
    switch (cmd_no) {
    case HostCmd_CMD_GET_HW_SPEC:
        ret = mwifiex_cmd_get_hw_spec(priv, cmd_ptr);
        break;
    case HostCmd_CMD_MAC_CONTROL:
        ret = mwifiex_cmd_mac_control(priv, cmd_ptr, cmd_action,
                          data_buf);
        break;
    case HostCmd_CMD_802_11_MAC_ADDRESS:
        ret = mwifiex_cmd_802_11_mac_address(priv, cmd_ptr,
                             cmd_action);
        break;
    case HostCmd_CMD_MAC_MULTICAST_ADR:
        ret = mwifiex_cmd_mac_multicast_adr(cmd_ptr, cmd_action,
                            data_buf);
        break;
    case HostCmd_CMD_TX_RATE_CFG:
        ret = mwifiex_cmd_tx_rate_cfg(priv, cmd_ptr, cmd_action,
                          data_buf);
        break;
    case HostCmd_CMD_TXPWR_CFG:
        ret = mwifiex_cmd_tx_power_cfg(cmd_ptr, cmd_action,
                           data_buf);
        break;
    case HostCmd_CMD_RF_TX_PWR:
        ret = mwifiex_cmd_rf_tx_power(priv, cmd_ptr, cmd_action,
                          data_buf);
        break;
    case HostCmd_CMD_RF_ANTENNA:
        ret = mwifiex_cmd_rf_antenna(priv, cmd_ptr, cmd_action,
                         data_buf);
        break;
    case HostCmd_CMD_802_11_PS_MODE_ENH:
        ret = mwifiex_cmd_enh_power_mode(priv, cmd_ptr, cmd_action,
                         (uint16_t)cmd_oid, data_buf);
        break;
    case HostCmd_CMD_802_11_HS_CFG_ENH:
        ret = mwifiex_cmd_802_11_hs_cfg(priv, cmd_ptr, cmd_action,
                (struct mwifiex_hs_config_param *) data_buf);
        break;
    case HostCmd_CMD_802_11_SCAN:
        ret = mwifiex_cmd_802_11_scan(cmd_ptr, data_buf);
        break;
    case HostCmd_CMD_802_11_BG_SCAN_QUERY:
        ret = mwifiex_cmd_802_11_bg_scan_query(cmd_ptr);
        break;
    case HostCmd_CMD_802_11_ASSOCIATE:
        ret = mwifiex_cmd_802_11_associate(priv, cmd_ptr, data_buf);
        break;
    case HostCmd_CMD_802_11_DEAUTHENTICATE:
        ret = mwifiex_cmd_802_11_deauthenticate(priv, cmd_ptr,
                            data_buf);
        break;
    case HostCmd_CMD_802_11_AD_HOC_START:
        ret = mwifiex_cmd_802_11_ad_hoc_start(priv, cmd_ptr,
                              data_buf);
        break;
    case HostCmd_CMD_802_11_GET_LOG:
        ret = mwifiex_cmd_802_11_get_log(cmd_ptr);
        break;
    case HostCmd_CMD_802_11_AD_HOC_JOIN:
        ret = mwifiex_cmd_802_11_ad_hoc_join(priv, cmd_ptr,
                             data_buf);
        break;
    case HostCmd_CMD_802_11_AD_HOC_STOP:
        ret = mwifiex_cmd_802_11_ad_hoc_stop(cmd_ptr);
        break;
    case HostCmd_CMD_RSSI_INFO:
        ret = mwifiex_cmd_802_11_rssi_info(priv, cmd_ptr, cmd_action);
        break;
    case HostCmd_CMD_802_11_SNMP_MIB:
        ret = mwifiex_cmd_802_11_snmp_mib(priv, cmd_ptr, cmd_action,
                          cmd_oid, data_buf);
        break;
    case HostCmd_CMD_802_11_TX_RATE_QUERY:
        cmd_ptr->command =
            cpu_to_le16(HostCmd_CMD_802_11_TX_RATE_QUERY);
        cmd_ptr->size =
            cpu_to_le16(sizeof(struct host_cmd_ds_tx_rate_query) +
                    S_DS_GEN);
        priv->tx_rate = 0;
        ret = 0;
        break;
    case HostCmd_CMD_VERSION_EXT:
        cmd_ptr->command = cpu_to_le16(cmd_no);
        cmd_ptr->params.verext.version_str_sel =
            (u8) (*((u32 *) data_buf));
        memcpy(&cmd_ptr->params, data_buf,
               sizeof(struct host_cmd_ds_version_ext));
        cmd_ptr->size =
            cpu_to_le16(sizeof(struct host_cmd_ds_version_ext) +
                    S_DS_GEN);
        ret = 0;
        break;
    case HostCmd_CMD_MGMT_FRAME_REG:
        cmd_ptr->command = cpu_to_le16(cmd_no);
        cmd_ptr->params.reg_mask.action = cpu_to_le16(cmd_action);
        cmd_ptr->params.reg_mask.mask = cpu_to_le32(*(u32 *)data_buf);
        cmd_ptr->size =
            cpu_to_le16(sizeof(struct host_cmd_ds_mgmt_frame_reg) +
                    S_DS_GEN);
        ret = 0;
        break;
    case HostCmd_CMD_REMAIN_ON_CHAN:
        cmd_ptr->command = cpu_to_le16(cmd_no);
        memcpy(&cmd_ptr->params, data_buf,
               sizeof(struct host_cmd_ds_remain_on_chan));
        cmd_ptr->size =
              cpu_to_le16(sizeof(struct host_cmd_ds_remain_on_chan) +
                  S_DS_GEN);
        break;
    case HostCmd_CMD_P2P_MODE_CFG:
        cmd_ptr->command = cpu_to_le16(cmd_no);
        cmd_ptr->params.mode_cfg.action = cpu_to_le16(cmd_action);
        cmd_ptr->params.mode_cfg.mode = cpu_to_le16(*(u16 *)data_buf);
        cmd_ptr->size =
            cpu_to_le16(sizeof(struct host_cmd_ds_p2p_mode_cfg) +
                    S_DS_GEN);
        break;
    case HostCmd_CMD_FUNC_INIT:
        if (priv->adapter->hw_status == MWIFIEX_HW_STATUS_RESET)
            priv->adapter->hw_status = MWIFIEX_HW_STATUS_READY;
        cmd_ptr->command = cpu_to_le16(cmd_no);
        cmd_ptr->size = cpu_to_le16(S_DS_GEN);
        break;
    case HostCmd_CMD_FUNC_SHUTDOWN:
        priv->adapter->hw_status = MWIFIEX_HW_STATUS_RESET;
        cmd_ptr->command = cpu_to_le16(cmd_no);
        cmd_ptr->size = cpu_to_le16(S_DS_GEN);
        break;
    case HostCmd_CMD_11N_ADDBA_REQ:
        ret = mwifiex_cmd_11n_addba_req(cmd_ptr, data_buf);
        break;
    case HostCmd_CMD_11N_DELBA:
        ret = mwifiex_cmd_11n_delba(cmd_ptr, data_buf);
        break;
    case HostCmd_CMD_11N_ADDBA_RSP:
        ret = mwifiex_cmd_11n_addba_rsp_gen(priv, cmd_ptr, data_buf);
        break;
    case HostCmd_CMD_802_11_KEY_MATERIAL:
        ret = mwifiex_cmd_802_11_key_material(priv, cmd_ptr,
                              cmd_action, cmd_oid,
                              data_buf);
        break;
    case HostCmd_CMD_802_11D_DOMAIN_INFO:
        ret = mwifiex_cmd_802_11d_domain_info(priv, cmd_ptr,
                              cmd_action);
        break;
    case HostCmd_CMD_RECONFIGURE_TX_BUFF:
        ret = mwifiex_cmd_recfg_tx_buf(priv, cmd_ptr, cmd_action,
                           data_buf);
        break;
    case HostCmd_CMD_AMSDU_AGGR_CTRL:
        ret = mwifiex_cmd_amsdu_aggr_ctrl(cmd_ptr, cmd_action,
                          data_buf);
        break;
    case HostCmd_CMD_11N_CFG:
        ret = mwifiex_cmd_11n_cfg(cmd_ptr, cmd_action, data_buf);
        break;
    case HostCmd_CMD_WMM_GET_STATUS:
        dev_dbg(priv->adapter->dev,
            "cmd: WMM: WMM_GET_STATUS cmd sent\n");
        cmd_ptr->command = cpu_to_le16(HostCmd_CMD_WMM_GET_STATUS);
        cmd_ptr->size =
            cpu_to_le16(sizeof(struct host_cmd_ds_wmm_get_status) +
                    S_DS_GEN);
        ret = 0;
        break;
    case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
        ret = mwifiex_cmd_ibss_coalescing_status(cmd_ptr, cmd_action,
                             data_buf);
        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_cmd_reg_access(cmd_ptr, cmd_action, data_buf);
        break;
    case HostCmd_CMD_SET_BSS_MODE:
        cmd_ptr->command = cpu_to_le16(cmd_no);
        if (priv->bss_mode == NL80211_IFTYPE_ADHOC)
            cmd_ptr->params.bss_mode.con_type =
                CONNECTION_TYPE_ADHOC;
        else if (priv->bss_mode == NL80211_IFTYPE_STATION)
            cmd_ptr->params.bss_mode.con_type =
                CONNECTION_TYPE_INFRA;
        else if (priv->bss_mode == NL80211_IFTYPE_AP)
            cmd_ptr->params.bss_mode.con_type = CONNECTION_TYPE_AP;
        cmd_ptr->size = cpu_to_le16(sizeof(struct
                host_cmd_ds_set_bss_mode) + S_DS_GEN);
        ret = 0;
        break;
    case HostCmd_CMD_PCIE_DESC_DETAILS:
        ret = mwifiex_cmd_pcie_host_spec(priv, cmd_ptr, cmd_action);
        break;
    case HostCmd_CMD_802_11_SUBSCRIBE_EVENT:
        ret = mwifiex_cmd_802_11_subsc_evt(priv, cmd_ptr, data_buf);
        break;
    default:
        dev_err(priv->adapter->dev,
            "PREP_CMD: unknown cmd- %#x\n", cmd_no);
        ret = -1;
        break;
    }
    return ret;
}

/*
 * This function issues commands to initialize firmware.
 *
 * This is called after firmware download to bring the card to
 * working state.
 *
 * The following commands are issued sequentially -
 *      - Set PCI-Express host buffer configuration (PCIE only)
 *      - Function init (for first interface only)
 *      - Read MAC address (for first interface only)
 *      - Reconfigure Tx buffer size (for first interface only)
 *      - Enable auto deep sleep (for first interface only)
 *      - Get Tx rate
 *      - Get Tx power
 *      - Set IBSS coalescing status
 *      - Set AMSDU aggregation control
 *      - Set 11d control
 *      - Set MAC control (this must be the last command to initialize firmware)
 */
int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
{
    int ret;
    u16 enable = true;
    struct mwifiex_ds_11n_amsdu_aggr_ctrl amsdu_aggr_ctrl;
    struct mwifiex_ds_auto_ds auto_ds;
    enum state_11d_t state_11d;
    struct mwifiex_ds_11n_tx_cfg tx_cfg;

    if (first_sta) {
        if (priv->adapter->iface_type == MWIFIEX_PCIE) {
            ret = mwifiex_send_cmd_sync(priv,
                        HostCmd_CMD_PCIE_DESC_DETAILS,
                        HostCmd_ACT_GEN_SET, 0, NULL);
            if (ret)
                return -1;
        }

        ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_FUNC_INIT,
                        HostCmd_ACT_GEN_SET, 0, NULL);
        if (ret)
            return -1;
        /* Read MAC address from HW */
        ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_GET_HW_SPEC,
                        HostCmd_ACT_GEN_GET, 0, NULL);
        if (ret)
            return -1;

        /* Reconfigure tx buf size */
        ret = mwifiex_send_cmd_sync(priv,
                        HostCmd_CMD_RECONFIGURE_TX_BUFF,
                        HostCmd_ACT_GEN_SET, 0,
                        &priv->adapter->tx_buf_size);
        if (ret)
            return -1;

        if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
            /* Enable IEEE PS by default */
            priv->adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
            ret = mwifiex_send_cmd_sync(
                    priv, HostCmd_CMD_802_11_PS_MODE_ENH,
                    EN_AUTO_PS, BITMAP_STA_PS, NULL);
            if (ret)
                return -1;
        }
    }

    /* get tx rate */
    ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
                    HostCmd_ACT_GEN_GET, 0, NULL);
    if (ret)
        return -1;
    priv->data_rate = 0;

    /* get tx power */
    ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_TX_PWR,
                    HostCmd_ACT_GEN_GET, 0, NULL);
    if (ret)
        return -1;

    if (priv->bss_type == MWIFIEX_BSS_TYPE_STA) {
        /* set ibss coalescing_status */
        ret = mwifiex_send_cmd_sync(
                priv, HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
                HostCmd_ACT_GEN_SET, 0, &enable);
        if (ret)
            return -1;
    }

    memset(&amsdu_aggr_ctrl, 0, sizeof(amsdu_aggr_ctrl));
    amsdu_aggr_ctrl.enable = true;
    /* Send request to firmware */
    ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_AMSDU_AGGR_CTRL,
                    HostCmd_ACT_GEN_SET, 0,
                    &amsdu_aggr_ctrl);
    if (ret)
        return -1;
    /* MAC Control must be the last command in init_fw */
    /* set MAC Control */
    ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
                    HostCmd_ACT_GEN_SET, 0,
                    &priv->curr_pkt_filter);
    if (ret)
        return -1;

    if (first_sta && priv->adapter->iface_type != MWIFIEX_USB &&
        priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
        /* Enable auto deep sleep */
        auto_ds.auto_ds = DEEP_SLEEP_ON;
        auto_ds.idle_time = DEEP_SLEEP_IDLE_TIME;
        ret = mwifiex_send_cmd_sync(priv,
                        HostCmd_CMD_802_11_PS_MODE_ENH,
                        EN_AUTO_PS, BITMAP_AUTO_DS,
                        &auto_ds);
        if (ret)
            return -1;
    }

    if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
        /* Send cmd to FW to enable/disable 11D function */
        state_11d = ENABLE_11D;
        ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
                        HostCmd_ACT_GEN_SET, DOT11D_I,
                        &state_11d);
        if (ret)
            dev_err(priv->adapter->dev,
                "11D: failed to enable 11D\n");
    }

    /* set last_init_cmd before sending the command */
    priv->adapter->last_init_cmd = HostCmd_CMD_11N_CFG;

    /* Send cmd to FW to configure 11n specific configuration
     * (Short GI, Channel BW, Green field support etc.) for transmit
     */
    tx_cfg.tx_htcap = MWIFIEX_FW_DEF_HTTXCFG;
    ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_11N_CFG,
                    HostCmd_ACT_GEN_SET, 0, &tx_cfg);

    ret = -EINPROGRESS;

    return ret;
}