drivers/net/wireless/mwifiex/sta_cmdresp.c

   1 /*
   2  * Marvell Wireless LAN device driver: station command response handling
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "decl.h"
  21 #include "ioctl.h"
  22 #include "util.h"
  23 #include "fw.h"
  24 #include "main.h"
  25 #include "wmm.h"
  26 #include "11n.h"
  27
  28
  29 /*
  30  * This function handles the command response error case.
  31  *
  32  * For scan response error, the function cancels all the pending
  33  * scan commands and generates an event to inform the applications
  34  * of the scan completion.
  35  *
  36  * For Power Save command failure, we do not retry enter PS
  37  * command in case of Ad-hoc mode.
  38  *
  39  * For all other response errors, the current command buffer is freed
  40  * and returned to the free command queue.
  41  */
  42 static void
  43 mwifiex_process_cmdresp_error(struct mwifiex_private *priv,
  44                               struct host_cmd_ds_command *resp)
  45 {
  46         struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
  47         struct mwifiex_adapter *adapter = priv->adapter;
  48         struct host_cmd_ds_802_11_ps_mode_enh *pm;
  49         unsigned long flags;
  50
  51         dev_err(adapter->dev, "CMD_RESP: cmd %#x error, result=%#x\n",
  52                         resp->command, resp->result);
  53
  54         if (adapter->curr_cmd->wait_q_enabled)
  55                 adapter->cmd_wait_q.status = -1;
  56
  57         switch (le16_to_cpu(resp->command)) {
  58         case HostCmd_CMD_802_11_PS_MODE_ENH:
  59                 pm = &resp->params.psmode_enh;
  60                 dev_err(adapter->dev, "PS_MODE_ENH cmd failed: "
  61                                         "result=0x%x action=0x%X\n",
  62                                 resp->result, le16_to_cpu(pm->action));
  63                 /* We do not re-try enter-ps command in ad-hoc mode. */
  64                 if (le16_to_cpu(pm->action) == EN_AUTO_PS &&
  65                         (le16_to_cpu(pm->params.ps_bitmap) & BITMAP_STA_PS) &&
  66                                 priv->bss_mode == NL80211_IFTYPE_ADHOC)
  67                         adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
  68
  69                 break;
  70         case HostCmd_CMD_802_11_SCAN:
  71                 /* Cancel all pending scan command */
  72                 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
  73                 list_for_each_entry_safe(cmd_node, tmp_node,
  74                                          &adapter->scan_pending_q, list) {
  75                         list_del(&cmd_node->list);
  76                         spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
  77                                                flags);
  78                         mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
  79                         spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
  80                 }
  81                 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
  82
  83                 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
  84                 adapter->scan_processing = false;
  85                 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
  86                 if (priv->report_scan_result)
  87                         priv->report_scan_result = false;
  88                 if (priv->scan_pending_on_block) {
  89                         priv->scan_pending_on_block = false;
  90                         up(&priv->async_sem);
  91                 }
  92                 break;
  93
  94         case HostCmd_CMD_MAC_CONTROL:
  95                 break;
  96
  97         default:
  98                 break;
  99         }
 100         /* Handling errors here */
 101         mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
 102
 103         spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
 104         adapter->curr_cmd = NULL;
 105         spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 106 }
 107
 108 /*
 109  * This function handles the command response of get RSSI info.
 110  *
 111  * Handling includes changing the header fields into CPU format
 112  * and saving the following parameters in driver -
 113  *      - Last data and beacon RSSI value
 114  *      - Average data and beacon RSSI value
 115  *      - Last data and beacon NF value
 116  *      - Average data and beacon NF value
 117  *
 118  * The parameters are send to the application as well, along with
 119  * calculated SNR values.
 120  */
 121 static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
 122                                         struct host_cmd_ds_command *resp,
 123                                         void *data_buf)
 124 {
 125         struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
 126                 &resp->params.rssi_info_rsp;
 127         struct mwifiex_ds_get_signal *signal;
 128
 129         priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last);
 130         priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last);
 131
 132         priv->data_rssi_avg = le16_to_cpu(rssi_info_rsp->data_rssi_avg);
 133         priv->data_nf_avg = le16_to_cpu(rssi_info_rsp->data_nf_avg);
 134
 135         priv->bcn_rssi_last = le16_to_cpu(rssi_info_rsp->bcn_rssi_last);
 136         priv->bcn_nf_last = le16_to_cpu(rssi_info_rsp->bcn_nf_last);
 137
 138         priv->bcn_rssi_avg = le16_to_cpu(rssi_info_rsp->bcn_rssi_avg);
 139         priv->bcn_nf_avg = le16_to_cpu(rssi_info_rsp->bcn_nf_avg);
 140
 141         /* Need to indicate IOCTL complete */
 142         if (data_buf) {
 143                 signal = (struct mwifiex_ds_get_signal *) data_buf;
 144                 memset(signal, 0, sizeof(struct mwifiex_ds_get_signal));
 145
 146                 signal->selector = ALL_RSSI_INFO_MASK;
 147
 148                 /* RSSI */
 149                 signal->bcn_rssi_last = priv->bcn_rssi_last;
 150                 signal->bcn_rssi_avg = priv->bcn_rssi_avg;
 151                 signal->data_rssi_last = priv->data_rssi_last;
 152                 signal->data_rssi_avg = priv->data_rssi_avg;
 153
 154                 /* SNR */
 155                 signal->bcn_snr_last =
 156                         CAL_SNR(priv->bcn_rssi_last, priv->bcn_nf_last);
 157                 signal->bcn_snr_avg =
 158                         CAL_SNR(priv->bcn_rssi_avg, priv->bcn_nf_avg);
 159                 signal->data_snr_last =
 160                         CAL_SNR(priv->data_rssi_last, priv->data_nf_last);
 161                 signal->data_snr_avg =
 162                         CAL_SNR(priv->data_rssi_avg, priv->data_nf_avg);
 163
 164                 /* NF */
 165                 signal->bcn_nf_last = priv->bcn_nf_last;
 166                 signal->bcn_nf_avg = priv->bcn_nf_avg;
 167                 signal->data_nf_last = priv->data_nf_last;
 168                 signal->data_nf_avg = priv->data_nf_avg;
 169         }
 170
 171         return 0;
 172 }
 173
 174 /*
 175  * This function handles the command response of set/get SNMP
 176  * MIB parameters.
 177  *
 178  * Handling includes changing the header fields into CPU format
 179  * and saving the parameter in driver.
 180  *
 181  * The following parameters are supported -
 182  *      - Fragmentation threshold
 183  *      - RTS threshold
 184  *      - Short retry limit
 185  */
 186 static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
 187                                        struct host_cmd_ds_command *resp,
 188                                        void *data_buf)
 189 {
 190         struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 191         u16 oid = le16_to_cpu(smib->oid);
 192         u16 query_type = le16_to_cpu(smib->query_type);
 193         u32 ul_temp;
 194
 195         dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x,"
 196                         " query_type = %#x, buf size = %#x\n",
 197                         oid, query_type, le16_to_cpu(smib->buf_size));
 198         if (query_type == HostCmd_ACT_GEN_GET) {
 199                 ul_temp = le16_to_cpu(*((__le16 *) (smib->value)));
 200                 if (data_buf)
 201                         *(u32 *)data_buf = ul_temp;
 202                 switch (oid) {
 203                 case FRAG_THRESH_I:
 204                         dev_dbg(priv->adapter->dev,
 205                                 "info: SNMP_RESP: FragThsd =%u\n", ul_temp);
 206                         break;
 207                 case RTS_THRESH_I:
 208                         dev_dbg(priv->adapter->dev,
 209                                 "info: SNMP_RESP: RTSThsd =%u\n", ul_temp);
 210                         break;
 211                 case SHORT_RETRY_LIM_I:
 212                         dev_dbg(priv->adapter->dev,
 213                                 "info: SNMP_RESP: TxRetryCount=%u\n", ul_temp);
 214                         break;
 215                 default:
 216                         break;
 217                 }
 218         }
 219
 220         return 0;
 221 }
 222
 223 /*
 224  * This function handles the command response of get log request
 225  *
 226  * Handling includes changing the header fields into CPU format
 227  * and sending the received parameters to application.
 228  */
 229 static int mwifiex_ret_get_log(struct mwifiex_private *priv,
 230                                struct host_cmd_ds_command *resp,
 231                                void *data_buf)
 232 {
 233         struct host_cmd_ds_802_11_get_log *get_log =
 234                 (struct host_cmd_ds_802_11_get_log *) &resp->params.get_log;
 235         struct mwifiex_ds_get_stats *stats;
 236
 237         if (data_buf) {
 238                 stats = (struct mwifiex_ds_get_stats *) data_buf;
 239                 stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame);
 240                 stats->failed = le32_to_cpu(get_log->failed);
 241                 stats->retry = le32_to_cpu(get_log->retry);
 242                 stats->multi_retry = le32_to_cpu(get_log->multi_retry);
 243                 stats->frame_dup = le32_to_cpu(get_log->frame_dup);
 244                 stats->rts_success = le32_to_cpu(get_log->rts_success);
 245                 stats->rts_failure = le32_to_cpu(get_log->rts_failure);
 246                 stats->ack_failure = le32_to_cpu(get_log->ack_failure);
 247                 stats->rx_frag = le32_to_cpu(get_log->rx_frag);
 248                 stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame);
 249                 stats->fcs_error = le32_to_cpu(get_log->fcs_error);
 250                 stats->tx_frame = le32_to_cpu(get_log->tx_frame);
 251                 stats->wep_icv_error[0] =
 252                         le32_to_cpu(get_log->wep_icv_err_cnt[0]);
 253                 stats->wep_icv_error[1] =
 254                         le32_to_cpu(get_log->wep_icv_err_cnt[1]);
 255                 stats->wep_icv_error[2] =
 256                         le32_to_cpu(get_log->wep_icv_err_cnt[2]);
 257                 stats->wep_icv_error[3] =
 258                         le32_to_cpu(get_log->wep_icv_err_cnt[3]);
 259         }
 260
 261         return 0;
 262 }
 263
 264 /*
 265  * This function handles the command response of set/get Tx rate
 266  * configurations.
 267  *
 268  * Handling includes changing the header fields into CPU format
 269  * and saving the following parameters in driver -
 270  *      - DSSS rate bitmap
 271  *      - OFDM rate bitmap
 272  *      - HT MCS rate bitmaps
 273  *
 274  * Based on the new rate bitmaps, the function re-evaluates if
 275  * auto data rate has been activated. If not, it sends another
 276  * query to the firmware to get the current Tx data rate and updates
 277  * the driver value.
 278  */
 279 static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 280                                    struct host_cmd_ds_command *resp,
 281                                    void *data_buf)
 282 {
 283         struct mwifiex_rate_cfg *ds_rate;
 284         struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
 285         struct mwifiex_rate_scope *rate_scope;
 286         struct mwifiex_ie_types_header *head;
 287         u16 tlv, tlv_buf_len;
 288         u8 *tlv_buf;
 289         u32 i;
 290         int ret = 0;
 291
 292         tlv_buf = (u8 *) ((u8 *) rate_cfg) +
 293                         sizeof(struct host_cmd_ds_tx_rate_cfg);
 294         tlv_buf_len = *(u16 *) (tlv_buf + sizeof(u16));
 295
 296         while (tlv_buf && tlv_buf_len > 0) {
 297                 tlv = (*tlv_buf);
 298                 tlv = tlv | (*(tlv_buf + 1) << 8);
 299
 300                 switch (tlv) {
 301                 case TLV_TYPE_RATE_SCOPE:
 302                         rate_scope = (struct mwifiex_rate_scope *) tlv_buf;
 303                         priv->bitmap_rates[0] =
 304                                 le16_to_cpu(rate_scope->hr_dsss_rate_bitmap);
 305                         priv->bitmap_rates[1] =
 306                                 le16_to_cpu(rate_scope->ofdm_rate_bitmap);
 307                         for (i = 0;
 308                              i <
 309                              sizeof(rate_scope->ht_mcs_rate_bitmap) /
 310                              sizeof(u16); i++)
 311                                 priv->bitmap_rates[2 + i] =
 312                                         le16_to_cpu(rate_scope->
 313                                                     ht_mcs_rate_bitmap[i]);
 314                         break;
 315                         /* Add RATE_DROP tlv here */
 316                 }
 317
 318                 head = (struct mwifiex_ie_types_header *) tlv_buf;
 319                 tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
 320                 tlv_buf_len -= le16_to_cpu(head->len);
 321         }
 322
 323         priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
 324
 325         if (priv->is_data_rate_auto)
 326                 priv->data_rate = 0;
 327         else
 328                 ret = mwifiex_send_cmd_async(priv,
 329                                           HostCmd_CMD_802_11_TX_RATE_QUERY,
 330                                           HostCmd_ACT_GEN_GET, 0, NULL);
 331
 332         if (data_buf) {
 333                 ds_rate = (struct mwifiex_rate_cfg *) data_buf;
 334                 if (le16_to_cpu(rate_cfg->action) == HostCmd_ACT_GEN_GET) {
 335                         if (priv->is_data_rate_auto) {
 336                                 ds_rate->is_rate_auto = 1;
 337                         } else {
 338                                 ds_rate->rate = mwifiex_get_rate_index(priv->
 339                                                                bitmap_rates,
 340                                                                sizeof(priv->
 341                                                                bitmap_rates));
 342                                 if (ds_rate->rate >=
 343                                     MWIFIEX_RATE_BITMAP_OFDM0
 344                                     && ds_rate->rate <=
 345                                     MWIFIEX_RATE_BITMAP_OFDM7)
 346                                         ds_rate->rate -=
 347                                                 (MWIFIEX_RATE_BITMAP_OFDM0 -
 348                                                  MWIFIEX_RATE_INDEX_OFDM0);
 349                                 if (ds_rate->rate >=
 350                                     MWIFIEX_RATE_BITMAP_MCS0
 351                                     && ds_rate->rate <=
 352                                     MWIFIEX_RATE_BITMAP_MCS127)
 353                                         ds_rate->rate -=
 354                                                 (MWIFIEX_RATE_BITMAP_MCS0 -
 355                                                  MWIFIEX_RATE_INDEX_MCS0);
 356                         }
 357                 }
 358         }
 359
 360         return ret;
 361 }
 362
 363 /*
 364  * This function handles the command response of get Tx power level.
 365  *
 366  * Handling includes saving the maximum and minimum Tx power levels
 367  * in driver, as well as sending the values to user.
 368  */
 369 static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 370 {
 371         int length, max_power = -1, min_power = -1;
 372         struct mwifiex_types_power_group *pg_tlv_hdr;
 373         struct mwifiex_power_group *pg;
 374
 375         if (data_buf) {
 376                 pg_tlv_hdr =
 377                         (struct mwifiex_types_power_group *) ((u8 *) data_buf
 378                                         + sizeof(struct host_cmd_ds_txpwr_cfg));
 379                 pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr +
 380                                 sizeof(struct mwifiex_types_power_group));
 381                 length = pg_tlv_hdr->length;
 382                 if (length > 0) {
 383                         max_power = pg->power_max;
 384                         min_power = pg->power_min;
 385                         length -= sizeof(struct mwifiex_power_group);
 386                 }
 387                 while (length) {
 388                         pg++;
 389                         if (max_power < pg->power_max)
 390                                 max_power = pg->power_max;
 391
 392                         if (min_power > pg->power_min)
 393                                 min_power = pg->power_min;
 394
 395                         length -= sizeof(struct mwifiex_power_group);
 396                 }
 397                 if (pg_tlv_hdr->length > 0) {
 398                         priv->min_tx_power_level = (u8) min_power;
 399                         priv->max_tx_power_level = (u8) max_power;
 400                 }
 401         } else {
 402                 return -1;
 403         }
 404
 405         return 0;
 406 }
 407
 408 /*
 409  * This function handles the command response of set/get Tx power
 410  * configurations.
 411  *
 412  * Handling includes changing the header fields into CPU format
 413  * and saving the current Tx power level in driver.
 414  */
 415 static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
 416                                     struct host_cmd_ds_command *resp,
 417                                     void *data_buf)
 418 {
 419         struct mwifiex_adapter *adapter = priv->adapter;
 420         struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
 421         struct mwifiex_types_power_group *pg_tlv_hdr;
 422         struct mwifiex_power_group *pg;
 423         u16 action = le16_to_cpu(txp_cfg->action);
 424
 425         switch (action) {
 426         case HostCmd_ACT_GEN_GET:
 427                 {
 428                         pg_tlv_hdr =
 429                                 (struct mwifiex_types_power_group *) ((u8 *)
 430                                                 txp_cfg +
 431                                                 sizeof
 432                                                 (struct
 433                                                  host_cmd_ds_txpwr_cfg));
 434                         pg = (struct mwifiex_power_group *) ((u8 *)
 435                                                 pg_tlv_hdr +
 436                                                 sizeof(struct
 437                                                 mwifiex_types_power_group));
 438                         if (adapter->hw_status ==
 439                             MWIFIEX_HW_STATUS_INITIALIZING)
 440                                 mwifiex_get_power_level(priv, txp_cfg);
 441                         priv->tx_power_level = (u16) pg->power_min;
 442                         break;
 443                 }
 444         case HostCmd_ACT_GEN_SET:
 445                 if (le32_to_cpu(txp_cfg->mode)) {
 446                         pg_tlv_hdr =
 447                                 (struct mwifiex_types_power_group *) ((u8 *)
 448                                                 txp_cfg +
 449                                                 sizeof
 450                                                 (struct
 451                                                  host_cmd_ds_txpwr_cfg));
 452                         pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr
 453                                                 +
 454                                                 sizeof(struct
 455                                                 mwifiex_types_power_group));
 456                         if (pg->power_max == pg->power_min)
 457                                 priv->tx_power_level = (u16) pg->power_min;
 458                 }
 459                 break;
 460         default:
 461                 dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n",
 462                                 action);
 463                 return 0;
 464         }
 465         dev_dbg(adapter->dev,
 466                 "info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
 467                priv->tx_power_level, priv->max_tx_power_level,
 468                priv->min_tx_power_level);
 469
 470         return 0;
 471 }
 472
 473 /*
 474  * This function handles the command response of set/get MAC address.
 475  *
 476  * Handling includes saving the MAC address in driver.
 477  */
 478 static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv,
 479                                           struct host_cmd_ds_command *resp)
 480 {
 481         struct host_cmd_ds_802_11_mac_address *cmd_mac_addr =
 482                 &resp->params.mac_addr;
 483
 484         memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN);
 485
 486         dev_dbg(priv->adapter->dev,
 487                 "info: set mac address: %pM\n", priv->curr_addr);
 488
 489         return 0;
 490 }
 491
 492 /*
 493  * This function handles the command response of set/get MAC multicast
 494  * address.
 495  */
 496 static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv,
 497                                          struct host_cmd_ds_command *resp)
 498 {
 499         return 0;
 500 }
 501
 502 /*
 503  * This function handles the command response of get Tx rate query.
 504  *
 505  * Handling includes changing the header fields into CPU format
 506  * and saving the Tx rate and HT information parameters in driver.
 507  *
 508  * Both rate configuration and current data rate can be retrieved
 509  * with this request.
 510  */
 511 static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv,
 512                                             struct host_cmd_ds_command *resp)
 513 {
 514         priv->tx_rate = resp->params.tx_rate.tx_rate;
 515         priv->tx_htinfo = resp->params.tx_rate.ht_info;
 516         if (!priv->is_data_rate_auto)
 517                 priv->data_rate =
 518                         mwifiex_index_to_data_rate(priv->tx_rate,
 519                                                    priv->tx_htinfo);
 520
 521         return 0;
 522 }
 523
 524 /*
 525  * This function handles the command response of a deauthenticate
 526  * command.
 527  *
 528  * If the deauthenticated MAC matches the current BSS MAC, the connection
 529  * state is reset.
 530  */
 531 static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv,
 532                                              struct host_cmd_ds_command *resp)
 533 {
 534         struct mwifiex_adapter *adapter = priv->adapter;
 535
 536         adapter->dbg.num_cmd_deauth++;
 537         if (!memcmp(resp->params.deauth.mac_addr,
 538                     &priv->curr_bss_params.bss_descriptor.mac_address,
 539                     sizeof(resp->params.deauth.mac_addr)))
 540                 mwifiex_reset_connect_state(priv);
 541
 542         return 0;
 543 }
 544
 545 /*
 546  * This function handles the command response of ad-hoc stop.
 547  *
 548  * The function resets the connection state in driver.
 549  */
 550 static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv,
 551                                           struct host_cmd_ds_command *resp)
 552 {
 553         mwifiex_reset_connect_state(priv);
 554         return 0;
 555 }
 556
 557 /*
 558  * This function handles the command response of set/get key material.
 559  *
 560  * Handling includes updating the driver parameters to reflect the
 561  * changes.
 562  */
 563 static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv,
 564                                            struct host_cmd_ds_command *resp)
 565 {
 566         struct host_cmd_ds_802_11_key_material *key =
 567                 &resp->params.key_material;
 568
 569         if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) {
 570                 if ((le16_to_cpu(key->key_param_set.key_info) & KEY_MCAST)) {
 571                         dev_dbg(priv->adapter->dev, "info: key: GTK is set\n");
 572                         priv->wpa_is_gtk_set = true;
 573                         priv->scan_block = false;
 574                 }
 575         }
 576
 577         memset(priv->aes_key.key_param_set.key, 0,
 578                sizeof(key->key_param_set.key));
 579         priv->aes_key.key_param_set.key_len = key->key_param_set.key_len;
 580         memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key,
 581                le16_to_cpu(priv->aes_key.key_param_set.key_len));
 582
 583         return 0;
 584 }
 585
 586 /*
 587  * This function handles the command response of get 11d domain information.
 588  */
 589 static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv,
 590                                            struct host_cmd_ds_command *resp)
 591 {
 592         struct host_cmd_ds_802_11d_domain_info_rsp *domain_info =
 593                 &resp->params.domain_info_resp;
 594         struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain;
 595         u16 action = le16_to_cpu(domain_info->action);
 596         u8 no_of_triplet;
 597
 598         no_of_triplet = (u8) ((le16_to_cpu(domain->header.len) -
 599                                         IEEE80211_COUNTRY_STRING_LEN) /
 600                                 sizeof(struct ieee80211_country_ie_triplet));
 601
 602         dev_dbg(priv->adapter->dev, "info: 11D Domain Info Resp:"
 603                         " no_of_triplet=%d\n", no_of_triplet);
 604
 605         if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) {
 606                 dev_warn(priv->adapter->dev,
 607                         "11D: invalid number of triplets %d "
 608                         "returned!!\n", no_of_triplet);
 609                 return -1;
 610         }
 611
 612         switch (action) {
 613         case HostCmd_ACT_GEN_SET:  /* Proc Set Action */
 614                 break;
 615         case HostCmd_ACT_GEN_GET:
 616                 break;
 617         default:
 618                 dev_err(priv->adapter->dev,
 619                         "11D: invalid action:%d\n", domain_info->action);
 620                 return -1;
 621         }
 622
 623         return 0;
 624 }
 625
 626 /*
 627  * This function handles the command response of get RF channel.
 628  *
 629  * Handling includes changing the header fields into CPU format
 630  * and saving the new channel in driver.
 631  */
 632 static int mwifiex_ret_802_11_rf_channel(struct mwifiex_private *priv,
 633                                          struct host_cmd_ds_command *resp,
 634                                          void *data_buf)
 635 {
 636         struct host_cmd_ds_802_11_rf_channel *rf_channel =
 637                 &resp->params.rf_channel;
 638         u16 new_channel = le16_to_cpu(rf_channel->current_channel);
 639
 640         if (priv->curr_bss_params.bss_descriptor.channel != new_channel) {
 641                 dev_dbg(priv->adapter->dev, "cmd: Channel Switch: %d to %d\n",
 642                        priv->curr_bss_params.bss_descriptor.channel,
 643                        new_channel);
 644                 /* Update the channel again */
 645                 priv->curr_bss_params.bss_descriptor.channel = new_channel;
 646         }
 647         if (data_buf)
 648                 *((u16 *)data_buf) = new_channel;
 649
 650         return 0;
 651 }
 652
 653 /*
 654  * This function handles the command response of get extended version.
 655  *
 656  * Handling includes forming the extended version string and sending it
 657  * to application.
 658  */
 659 static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 660                                struct host_cmd_ds_command *resp,
 661                                void *data_buf)
 662 {
 663         struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
 664         struct host_cmd_ds_version_ext *version_ext;
 665
 666         if (data_buf) {
 667                 version_ext = (struct host_cmd_ds_version_ext *)data_buf;
 668                 version_ext->version_str_sel = ver_ext->version_str_sel;
 669                 memcpy(version_ext->version_str, ver_ext->version_str,
 670                        sizeof(char) * 128);
 671                 memcpy(priv->version_str, ver_ext->version_str, 128);
 672         }
 673         return 0;
 674 }
 675
 676 /*
 677  * This function handles the command response of register access.
 678  *
 679  * The register value and offset are returned to the user. For EEPROM
 680  * access, the byte count is also returned.
 681  */
 682 static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp,
 683                                   void *data_buf)
 684 {
 685         struct mwifiex_ds_reg_rw *reg_rw;
 686         struct mwifiex_ds_read_eeprom *eeprom;
 687
 688         if (data_buf) {
 689                 reg_rw = (struct mwifiex_ds_reg_rw *) data_buf;
 690                 eeprom = (struct mwifiex_ds_read_eeprom *) data_buf;
 691                 switch (type) {
 692                 case HostCmd_CMD_MAC_REG_ACCESS:
 693                         {
 694                                 struct host_cmd_ds_mac_reg_access *reg;
 695                                 reg = (struct host_cmd_ds_mac_reg_access *)
 696                                         &resp->params.mac_reg;
 697                                 reg_rw->offset = cpu_to_le32(
 698                                         (u32) le16_to_cpu(reg->offset));
 699                                 reg_rw->value = reg->value;
 700                                 break;
 701                         }
 702                 case HostCmd_CMD_BBP_REG_ACCESS:
 703                         {
 704                                 struct host_cmd_ds_bbp_reg_access *reg;
 705                                 reg = (struct host_cmd_ds_bbp_reg_access *)
 706                                         &resp->params.bbp_reg;
 707                                 reg_rw->offset = cpu_to_le32(
 708                                         (u32) le16_to_cpu(reg->offset));
 709                                 reg_rw->value = cpu_to_le32((u32) reg->value);
 710                                 break;
 711                         }
 712
 713                 case HostCmd_CMD_RF_REG_ACCESS:
 714                         {
 715                                 struct host_cmd_ds_rf_reg_access *reg;
 716                                 reg = (struct host_cmd_ds_rf_reg_access *)
 717                                         &resp->params.rf_reg;
 718                                 reg_rw->offset = cpu_to_le32(
 719                                         (u32) le16_to_cpu(reg->offset));
 720                                 reg_rw->value = cpu_to_le32((u32) reg->value);
 721                                 break;
 722                         }
 723                 case HostCmd_CMD_PMIC_REG_ACCESS:
 724                         {
 725                                 struct host_cmd_ds_pmic_reg_access *reg;
 726                                 reg = (struct host_cmd_ds_pmic_reg_access *)
 727                                         &resp->params.pmic_reg;
 728                                 reg_rw->offset = cpu_to_le32(
 729                                         (u32) le16_to_cpu(reg->offset));
 730                                 reg_rw->value = cpu_to_le32((u32) reg->value);
 731                                 break;
 732                         }
 733                 case HostCmd_CMD_CAU_REG_ACCESS:
 734                         {
 735                                 struct host_cmd_ds_rf_reg_access *reg;
 736                                 reg = (struct host_cmd_ds_rf_reg_access *)
 737                                         &resp->params.rf_reg;
 738                                 reg_rw->offset = cpu_to_le32(
 739                                         (u32) le16_to_cpu(reg->offset));
 740                                 reg_rw->value = cpu_to_le32((u32) reg->value);
 741                                 break;
 742                         }
 743                 case HostCmd_CMD_802_11_EEPROM_ACCESS:
 744                         {
 745                                 struct host_cmd_ds_802_11_eeprom_access
 746                                         *cmd_eeprom =
 747                                         (struct host_cmd_ds_802_11_eeprom_access
 748                                          *) &resp->params.eeprom;
 749                                 pr_debug("info: EEPROM read len=%x\n",
 750                                        cmd_eeprom->byte_count);
 751                                 if (le16_to_cpu(eeprom->byte_count) <
 752                                                 le16_to_cpu(
 753                                                 cmd_eeprom->byte_count)) {
 754                                         eeprom->byte_count = cpu_to_le16(0);
 755                                         pr_debug("info: EEPROM read "
 756                                                         "length is too big\n");
 757                                         return -1;
 758                                 }
 759                                 eeprom->offset = cmd_eeprom->offset;
 760                                 eeprom->byte_count = cmd_eeprom->byte_count;
 761                                 if (le16_to_cpu(eeprom->byte_count) > 0)
 762                                         memcpy(&eeprom->value,
 763                                                &cmd_eeprom->value,
 764                                                le16_to_cpu(eeprom->byte_count));
 765
 766                                 break;
 767                         }
 768                 default:
 769                         return -1;
 770                 }
 771         }
 772         return 0;
 773 }
 774
 775 /*
 776  * This function handles the command response of get IBSS coalescing status.
 777  *
 778  * If the received BSSID is different than the current one, the current BSSID,
 779  * beacon interval, ATIM window and ERP information are updated, along with
 780  * changing the ad-hoc state accordingly.
 781  */
 782 static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 783                                               struct host_cmd_ds_command *resp)
 784 {
 785         struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
 786                 &(resp->params.ibss_coalescing);
 787         u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
 788
 789         if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
 790                 return 0;
 791
 792         dev_dbg(priv->adapter->dev,
 793                 "info: new BSSID %pM\n", ibss_coal_resp->bssid);
 794
 795         /* If rsp has NULL BSSID, Just return..... No Action */
 796         if (!memcmp(ibss_coal_resp->bssid, zero_mac, ETH_ALEN)) {
 797                 dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
 798                 return 0;
 799         }
 800
 801         /* If BSSID is diff, modify current BSS parameters */
 802         if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
 803                    ibss_coal_resp->bssid, ETH_ALEN)) {
 804                 /* BSSID */
 805                 memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
 806                        ibss_coal_resp->bssid, ETH_ALEN);
 807
 808                 /* Beacon Interval */
 809                 priv->curr_bss_params.bss_descriptor.beacon_period
 810                         = le16_to_cpu(ibss_coal_resp->beacon_interval);
 811
 812                 /* ERP Information */
 813                 priv->curr_bss_params.bss_descriptor.erp_flags =
 814                         (u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect);
 815
 816                 priv->adhoc_state = ADHOC_COALESCED;
 817         }
 818
 819         return 0;
 820 }
 821
 822 /*
 823  * This function handles the command responses.
 824  *
 825  * This is a generic function, which calls command specific
 826  * response handlers based on the command ID.
 827  */
 828 int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv,
 829                                 u16 cmdresp_no, void *cmd_buf)
 830 {
 831         int ret = 0;
 832         struct mwifiex_adapter *adapter = priv->adapter;
 833         struct host_cmd_ds_command *resp =
 834                 (struct host_cmd_ds_command *) cmd_buf;
 835         void *data_buf = adapter->curr_cmd->data_buf;
 836
 837         /* If the command is not successful, cleanup and return failure */
 838         if (resp->result != HostCmd_RESULT_OK) {
 839                 mwifiex_process_cmdresp_error(priv, resp);
 840                 return -1;
 841         }
 842         /* Command successful, handle response */
 843         switch (cmdresp_no) {
 844         case HostCmd_CMD_GET_HW_SPEC:
 845                 ret = mwifiex_ret_get_hw_spec(priv, resp);
 846                 break;
 847         case HostCmd_CMD_MAC_CONTROL:
 848                 break;
 849         case HostCmd_CMD_802_11_MAC_ADDRESS:
 850                 ret = mwifiex_ret_802_11_mac_address(priv, resp);
 851                 break;
 852         case HostCmd_CMD_MAC_MULTICAST_ADR:
 853                 ret = mwifiex_ret_mac_multicast_adr(priv, resp);
 854                 break;
 855         case HostCmd_CMD_TX_RATE_CFG:
 856                 ret = mwifiex_ret_tx_rate_cfg(priv, resp, data_buf);
 857                 break;
 858         case HostCmd_CMD_802_11_SCAN:
 859                 ret = mwifiex_ret_802_11_scan(priv, resp);
 860                 adapter->curr_cmd->wait_q_enabled = false;
 861                 break;
 862         case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 863                 ret = mwifiex_ret_802_11_scan(priv, resp);
 864                 dev_dbg(adapter->dev,
 865                         "info: CMD_RESP: BG_SCAN result is ready!\n");
 866                 break;
 867         case HostCmd_CMD_TXPWR_CFG:
 868                 ret = mwifiex_ret_tx_power_cfg(priv, resp, data_buf);
 869                 break;
 870         case HostCmd_CMD_802_11_PS_MODE_ENH:
 871                 ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf);
 872                 break;
 873         case HostCmd_CMD_802_11_HS_CFG_ENH:
 874                 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
 875                 break;
 876         case HostCmd_CMD_802_11_ASSOCIATE:
 877                 ret = mwifiex_ret_802_11_associate(priv, resp);
 878                 break;
 879         case HostCmd_CMD_802_11_DEAUTHENTICATE:
 880                 ret = mwifiex_ret_802_11_deauthenticate(priv, resp);
 881                 break;
 882         case HostCmd_CMD_802_11_AD_HOC_START:
 883         case HostCmd_CMD_802_11_AD_HOC_JOIN:
 884                 ret = mwifiex_ret_802_11_ad_hoc(priv, resp);
 885                 break;
 886         case HostCmd_CMD_802_11_AD_HOC_STOP:
 887                 ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp);
 888                 break;
 889         case HostCmd_CMD_802_11_GET_LOG:
 890                 ret = mwifiex_ret_get_log(priv, resp, data_buf);
 891                 break;
 892         case HostCmd_CMD_RSSI_INFO:
 893                 ret = mwifiex_ret_802_11_rssi_info(priv, resp, data_buf);
 894                 break;
 895         case HostCmd_CMD_802_11_SNMP_MIB:
 896                 ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf);
 897                 break;
 898         case HostCmd_CMD_802_11_TX_RATE_QUERY:
 899                 ret = mwifiex_ret_802_11_tx_rate_query(priv, resp);
 900                 break;
 901         case HostCmd_CMD_802_11_RF_CHANNEL:
 902                 ret = mwifiex_ret_802_11_rf_channel(priv, resp, data_buf);
 903                 break;
 904         case HostCmd_CMD_VERSION_EXT:
 905                 ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
 906                 break;
 907         case HostCmd_CMD_FUNC_INIT:
 908         case HostCmd_CMD_FUNC_SHUTDOWN:
 909                 break;
 910         case HostCmd_CMD_802_11_KEY_MATERIAL:
 911                 ret = mwifiex_ret_802_11_key_material(priv, resp);
 912                 break;
 913         case HostCmd_CMD_802_11D_DOMAIN_INFO:
 914                 ret = mwifiex_ret_802_11d_domain_info(priv, resp);
 915                 break;
 916         case HostCmd_CMD_11N_ADDBA_REQ:
 917                 ret = mwifiex_ret_11n_addba_req(priv, resp);
 918                 break;
 919         case HostCmd_CMD_11N_DELBA:
 920                 ret = mwifiex_ret_11n_delba(priv, resp);
 921                 break;
 922         case HostCmd_CMD_11N_ADDBA_RSP:
 923                 ret = mwifiex_ret_11n_addba_resp(priv, resp);
 924                 break;
 925         case HostCmd_CMD_RECONFIGURE_TX_BUFF:
 926                 adapter->tx_buf_size = (u16) le16_to_cpu(resp->params.
 927                                                              tx_buf.buff_size);
 928                 adapter->tx_buf_size = (adapter->tx_buf_size /
 929                                                 MWIFIEX_SDIO_BLOCK_SIZE) *
 930                                                 MWIFIEX_SDIO_BLOCK_SIZE;
 931                 adapter->curr_tx_buf_size = adapter->tx_buf_size;
 932                 dev_dbg(adapter->dev,
 933                         "cmd: max_tx_buf_size=%d, tx_buf_size=%d\n",
 934                        adapter->max_tx_buf_size, adapter->tx_buf_size);
 935
 936                 if (adapter->if_ops.update_mp_end_port)
 937                         adapter->if_ops.update_mp_end_port(adapter,
 938                                         le16_to_cpu(resp->
 939                                                 params.
 940                                                 tx_buf.
 941                                                 mp_end_port));
 942                 break;
 943         case HostCmd_CMD_AMSDU_AGGR_CTRL:
 944                 ret = mwifiex_ret_amsdu_aggr_ctrl(resp, data_buf);
 945                 break;
 946         case HostCmd_CMD_WMM_GET_STATUS:
 947                 ret = mwifiex_ret_wmm_get_status(priv, resp);
 948                 break;
 949         case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
 950                 ret = mwifiex_ret_ibss_coalescing_status(priv, resp);
 951                 break;
 952         case HostCmd_CMD_MAC_REG_ACCESS:
 953         case HostCmd_CMD_BBP_REG_ACCESS:
 954         case HostCmd_CMD_RF_REG_ACCESS:
 955         case HostCmd_CMD_PMIC_REG_ACCESS:
 956         case HostCmd_CMD_CAU_REG_ACCESS:
 957         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 958                 ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf);
 959                 break;
 960         case HostCmd_CMD_SET_BSS_MODE:
 961                 break;
 962         case HostCmd_CMD_11N_CFG:
 963                 ret = mwifiex_ret_11n_cfg(resp, data_buf);
 964                 break;
 965         default:
 966                 dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n",
 967                        resp->command);
 968                 break;
 969         }
 970
 971         return ret;
 972 }