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,
  61                         "PS_MODE_ENH cmd failed: 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 {
 124         struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
 125                                                 &resp->params.rssi_info_rsp;
 126         struct mwifiex_ds_misc_subsc_evt *subsc_evt =
 127                                                  &priv->async_subsc_evt_storage;
 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         if (priv->subsc_evt_rssi_state == EVENT_HANDLED)
 142                 return 0;
 143
 144         /*
 145          * Ideally, our use of async_subsc_evt_storage would be symmetric such
 146          * that we could prove that the previous async call had completed before
 147          * this one starts but this would require identifying where right point
 148          * to relinguish the resource is and it isn't clear if there is such a
 149          * point in the current implementation.
 150          */
 151         memset(subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 152
 153         /* Resubscribe low and high rssi events with new thresholds */
 154         subsc_evt->events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 155         subsc_evt->action = HostCmd_ACT_BITWISE_SET;
 156         if (priv->subsc_evt_rssi_state == RSSI_LOW_RECVD) {
 157                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg -
 158                                 priv->cqm_rssi_hyst);
 159                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 160         } else if (priv->subsc_evt_rssi_state == RSSI_HIGH_RECVD) {
 161                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 162                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg +
 163                                 priv->cqm_rssi_hyst);
 164         }
 165         subsc_evt->bcn_l_rssi_cfg.evt_freq = 1;
 166         subsc_evt->bcn_h_rssi_cfg.evt_freq = 1;
 167
 168         priv->subsc_evt_rssi_state = EVENT_HANDLED;
 169
 170         mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 171                                0, 0, subsc_evt);
 172
 173         return 0;
 174 }
 175
 176 /*
 177  * This function handles the command response of set/get SNMP
 178  * MIB parameters.
 179  *
 180  * Handling includes changing the header fields into CPU format
 181  * and saving the parameter in driver.
 182  *
 183  * The following parameters are supported -
 184  *      - Fragmentation threshold
 185  *      - RTS threshold
 186  *      - Short retry limit
 187  */
 188 static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
 189                                        struct host_cmd_ds_command *resp,
 190                                        u32 *data_buf)
 191 {
 192         struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 193         u16 oid = le16_to_cpu(smib->oid);
 194         u16 query_type = le16_to_cpu(smib->query_type);
 195         u32 ul_temp;
 196
 197         dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x,"
 198                 " query_type = %#x, buf size = %#x\n",
 199                 oid, query_type, le16_to_cpu(smib->buf_size));
 200         if (query_type == HostCmd_ACT_GEN_GET) {
 201                 ul_temp = le16_to_cpu(*((__le16 *) (smib->value)));
 202                 if (data_buf)
 203                         *data_buf = ul_temp;
 204                 switch (oid) {
 205                 case FRAG_THRESH_I:
 206                         dev_dbg(priv->adapter->dev,
 207                                 "info: SNMP_RESP: FragThsd =%u\n", ul_temp);
 208                         break;
 209                 case RTS_THRESH_I:
 210                         dev_dbg(priv->adapter->dev,
 211                                 "info: SNMP_RESP: RTSThsd =%u\n", ul_temp);
 212                         break;
 213                 case SHORT_RETRY_LIM_I:
 214                         dev_dbg(priv->adapter->dev,
 215                                 "info: SNMP_RESP: TxRetryCount=%u\n", ul_temp);
 216                         break;
 217                 case DTIM_PERIOD_I:
 218                         dev_dbg(priv->adapter->dev,
 219                                 "info: SNMP_RESP: DTIM period=%u\n", ul_temp);
 220                 default:
 221                         break;
 222                 }
 223         }
 224
 225         return 0;
 226 }
 227
 228 /*
 229  * This function handles the command response of get log request
 230  *
 231  * Handling includes changing the header fields into CPU format
 232  * and sending the received parameters to application.
 233  */
 234 static int mwifiex_ret_get_log(struct mwifiex_private *priv,
 235                                struct host_cmd_ds_command *resp,
 236                                struct mwifiex_ds_get_stats *stats)
 237 {
 238         struct host_cmd_ds_802_11_get_log *get_log =
 239                 (struct host_cmd_ds_802_11_get_log *) &resp->params.get_log;
 240
 241         if (stats) {
 242                 stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame);
 243                 stats->failed = le32_to_cpu(get_log->failed);
 244                 stats->retry = le32_to_cpu(get_log->retry);
 245                 stats->multi_retry = le32_to_cpu(get_log->multi_retry);
 246                 stats->frame_dup = le32_to_cpu(get_log->frame_dup);
 247                 stats->rts_success = le32_to_cpu(get_log->rts_success);
 248                 stats->rts_failure = le32_to_cpu(get_log->rts_failure);
 249                 stats->ack_failure = le32_to_cpu(get_log->ack_failure);
 250                 stats->rx_frag = le32_to_cpu(get_log->rx_frag);
 251                 stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame);
 252                 stats->fcs_error = le32_to_cpu(get_log->fcs_error);
 253                 stats->tx_frame = le32_to_cpu(get_log->tx_frame);
 254                 stats->wep_icv_error[0] =
 255                         le32_to_cpu(get_log->wep_icv_err_cnt[0]);
 256                 stats->wep_icv_error[1] =
 257                         le32_to_cpu(get_log->wep_icv_err_cnt[1]);
 258                 stats->wep_icv_error[2] =
 259                         le32_to_cpu(get_log->wep_icv_err_cnt[2]);
 260                 stats->wep_icv_error[3] =
 261                         le32_to_cpu(get_log->wep_icv_err_cnt[3]);
 262         }
 263
 264         return 0;
 265 }
 266
 267 /*
 268  * This function handles the command response of set/get Tx rate
 269  * configurations.
 270  *
 271  * Handling includes changing the header fields into CPU format
 272  * and saving the following parameters in driver -
 273  *      - DSSS rate bitmap
 274  *      - OFDM rate bitmap
 275  *      - HT MCS rate bitmaps
 276  *
 277  * Based on the new rate bitmaps, the function re-evaluates if
 278  * auto data rate has been activated. If not, it sends another
 279  * query to the firmware to get the current Tx data rate and updates
 280  * the driver value.
 281  */
 282 static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 283                                    struct host_cmd_ds_command *resp,
 284                                    struct mwifiex_rate_cfg *ds_rate)
 285 {
 286         struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
 287         struct mwifiex_rate_scope *rate_scope;
 288         struct mwifiex_ie_types_header *head;
 289         u16 tlv, tlv_buf_len;
 290         u8 *tlv_buf;
 291         u32 i;
 292         int ret = 0;
 293
 294         tlv_buf = (u8 *) ((u8 *) rate_cfg) +
 295                         sizeof(struct host_cmd_ds_tx_rate_cfg);
 296         tlv_buf_len = *(u16 *) (tlv_buf + sizeof(u16));
 297
 298         while (tlv_buf && tlv_buf_len > 0) {
 299                 tlv = (*tlv_buf);
 300                 tlv = tlv | (*(tlv_buf + 1) << 8);
 301
 302                 switch (tlv) {
 303                 case TLV_TYPE_RATE_SCOPE:
 304                         rate_scope = (struct mwifiex_rate_scope *) tlv_buf;
 305                         priv->bitmap_rates[0] =
 306                                 le16_to_cpu(rate_scope->hr_dsss_rate_bitmap);
 307                         priv->bitmap_rates[1] =
 308                                 le16_to_cpu(rate_scope->ofdm_rate_bitmap);
 309                         for (i = 0;
 310                              i <
 311                              sizeof(rate_scope->ht_mcs_rate_bitmap) /
 312                              sizeof(u16); i++)
 313                                 priv->bitmap_rates[2 + i] =
 314                                         le16_to_cpu(rate_scope->
 315                                                     ht_mcs_rate_bitmap[i]);
 316                         break;
 317                         /* Add RATE_DROP tlv here */
 318                 }
 319
 320                 head = (struct mwifiex_ie_types_header *) tlv_buf;
 321                 tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
 322                 tlv_buf_len -= le16_to_cpu(head->len);
 323         }
 324
 325         priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
 326
 327         if (priv->is_data_rate_auto)
 328                 priv->data_rate = 0;
 329         else
 330                 ret = mwifiex_send_cmd_async(priv,
 331                                           HostCmd_CMD_802_11_TX_RATE_QUERY,
 332                                           HostCmd_ACT_GEN_GET, 0, NULL);
 333
 334         if (!ds_rate)
 335                 return ret;
 336
 337         if (le16_to_cpu(rate_cfg->action) == HostCmd_ACT_GEN_GET) {
 338                 if (priv->is_data_rate_auto) {
 339                         ds_rate->is_rate_auto = 1;
 340                 return ret;
 341         }
 342         ds_rate->rate = mwifiex_get_rate_index(priv->bitmap_rates,
 343                                                sizeof(priv->bitmap_rates));
 344
 345         if (ds_rate->rate >= MWIFIEX_RATE_BITMAP_OFDM0 &&
 346             ds_rate->rate <= MWIFIEX_RATE_BITMAP_OFDM7)
 347                 ds_rate->rate -= (MWIFIEX_RATE_BITMAP_OFDM0 -
 348                                   MWIFIEX_RATE_INDEX_OFDM0);
 349
 350         if (ds_rate->rate >= MWIFIEX_RATE_BITMAP_MCS0 &&
 351             ds_rate->rate <= MWIFIEX_RATE_BITMAP_MCS127)
 352                 ds_rate->rate -= (MWIFIEX_RATE_BITMAP_MCS0 -
 353                                   MWIFIEX_RATE_INDEX_MCS0);
 354         }
 355
 356         return ret;
 357 }
 358
 359 /*
 360  * This function handles the command response of get Tx power level.
 361  *
 362  * Handling includes saving the maximum and minimum Tx power levels
 363  * in driver, as well as sending the values to user.
 364  */
 365 static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 366 {
 367         int length, max_power = -1, min_power = -1;
 368         struct mwifiex_types_power_group *pg_tlv_hdr;
 369         struct mwifiex_power_group *pg;
 370
 371         if (!data_buf)
 372                 return -1;
 373
 374         pg_tlv_hdr = (struct mwifiex_types_power_group *)
 375                 ((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 376         pg = (struct mwifiex_power_group *)
 377                 ((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
 378         length = pg_tlv_hdr->length;
 379         if (length > 0) {
 380                 max_power = pg->power_max;
 381                 min_power = pg->power_min;
 382                 length -= sizeof(struct mwifiex_power_group);
 383         }
 384         while (length) {
 385                 pg++;
 386                 if (max_power < pg->power_max)
 387                         max_power = pg->power_max;
 388
 389                 if (min_power > pg->power_min)
 390                         min_power = pg->power_min;
 391
 392                 length -= sizeof(struct mwifiex_power_group);
 393         }
 394         if (pg_tlv_hdr->length > 0) {
 395                 priv->min_tx_power_level = (u8) min_power;
 396                 priv->max_tx_power_level = (u8) max_power;
 397         }
 398
 399         return 0;
 400 }
 401
 402 /*
 403  * This function handles the command response of set/get Tx power
 404  * configurations.
 405  *
 406  * Handling includes changing the header fields into CPU format
 407  * and saving the current Tx power level in driver.
 408  */
 409 static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
 410                                     struct host_cmd_ds_command *resp)
 411 {
 412         struct mwifiex_adapter *adapter = priv->adapter;
 413         struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
 414         struct mwifiex_types_power_group *pg_tlv_hdr;
 415         struct mwifiex_power_group *pg;
 416         u16 action = le16_to_cpu(txp_cfg->action);
 417
 418         switch (action) {
 419         case HostCmd_ACT_GEN_GET:
 420                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 421                         ((u8 *) txp_cfg +
 422                          sizeof(struct host_cmd_ds_txpwr_cfg));
 423
 424                 pg = (struct mwifiex_power_group *)
 425                         ((u8 *) pg_tlv_hdr +
 426                          sizeof(struct mwifiex_types_power_group));
 427
 428                 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
 429                         mwifiex_get_power_level(priv, txp_cfg);
 430
 431                 priv->tx_power_level = (u16) pg->power_min;
 432                 break;
 433
 434         case HostCmd_ACT_GEN_SET:
 435                 if (!le32_to_cpu(txp_cfg->mode))
 436                         break;
 437
 438                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 439                         ((u8 *) txp_cfg +
 440                          sizeof(struct host_cmd_ds_txpwr_cfg));
 441
 442                 pg = (struct mwifiex_power_group *)
 443                         ((u8 *) pg_tlv_hdr +
 444                          sizeof(struct mwifiex_types_power_group));
 445
 446                 if (pg->power_max == pg->power_min)
 447                         priv->tx_power_level = (u16) pg->power_min;
 448                 break;
 449         default:
 450                 dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n",
 451                         action);
 452                 return 0;
 453         }
 454         dev_dbg(adapter->dev,
 455                 "info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
 456                priv->tx_power_level, priv->max_tx_power_level,
 457                priv->min_tx_power_level);
 458
 459         return 0;
 460 }
 461
 462 /*
 463  * This function handles the command response of set/get MAC address.
 464  *
 465  * Handling includes saving the MAC address in driver.
 466  */
 467 static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv,
 468                                           struct host_cmd_ds_command *resp)
 469 {
 470         struct host_cmd_ds_802_11_mac_address *cmd_mac_addr =
 471                                                         &resp->params.mac_addr;
 472
 473         memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN);
 474
 475         dev_dbg(priv->adapter->dev,
 476                 "info: set mac address: %pM\n", priv->curr_addr);
 477
 478         return 0;
 479 }
 480
 481 /*
 482  * This function handles the command response of set/get MAC multicast
 483  * address.
 484  */
 485 static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv,
 486                                          struct host_cmd_ds_command *resp)
 487 {
 488         return 0;
 489 }
 490
 491 /*
 492  * This function handles the command response of get Tx rate query.
 493  *
 494  * Handling includes changing the header fields into CPU format
 495  * and saving the Tx rate and HT information parameters in driver.
 496  *
 497  * Both rate configuration and current data rate can be retrieved
 498  * with this request.
 499  */
 500 static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv,
 501                                             struct host_cmd_ds_command *resp)
 502 {
 503         priv->tx_rate = resp->params.tx_rate.tx_rate;
 504         priv->tx_htinfo = resp->params.tx_rate.ht_info;
 505         if (!priv->is_data_rate_auto)
 506                 priv->data_rate =
 507                         mwifiex_index_to_data_rate(priv, priv->tx_rate,
 508                                                    priv->tx_htinfo);
 509
 510         return 0;
 511 }
 512
 513 /*
 514  * This function handles the command response of a deauthenticate
 515  * command.
 516  *
 517  * If the deauthenticated MAC matches the current BSS MAC, the connection
 518  * state is reset.
 519  */
 520 static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv,
 521                                              struct host_cmd_ds_command *resp)
 522 {
 523         struct mwifiex_adapter *adapter = priv->adapter;
 524
 525         adapter->dbg.num_cmd_deauth++;
 526         if (!memcmp(resp->params.deauth.mac_addr,
 527                     &priv->curr_bss_params.bss_descriptor.mac_address,
 528                     sizeof(resp->params.deauth.mac_addr)))
 529                 mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 530
 531         return 0;
 532 }
 533
 534 /*
 535  * This function handles the command response of ad-hoc stop.
 536  *
 537  * The function resets the connection state in driver.
 538  */
 539 static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv,
 540                                           struct host_cmd_ds_command *resp)
 541 {
 542         mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 543         return 0;
 544 }
 545
 546 /*
 547  * This function handles the command response of set/get key material.
 548  *
 549  * Handling includes updating the driver parameters to reflect the
 550  * changes.
 551  */
 552 static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv,
 553                                            struct host_cmd_ds_command *resp)
 554 {
 555         struct host_cmd_ds_802_11_key_material *key =
 556                                                 &resp->params.key_material;
 557
 558         if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) {
 559                 if ((le16_to_cpu(key->key_param_set.key_info) & KEY_MCAST)) {
 560                         dev_dbg(priv->adapter->dev, "info: key: GTK is set\n");
 561                         priv->wpa_is_gtk_set = true;
 562                         priv->scan_block = false;
 563                 }
 564         }
 565
 566         memset(priv->aes_key.key_param_set.key, 0,
 567                sizeof(key->key_param_set.key));
 568         priv->aes_key.key_param_set.key_len = key->key_param_set.key_len;
 569         memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key,
 570                le16_to_cpu(priv->aes_key.key_param_set.key_len));
 571
 572         return 0;
 573 }
 574
 575 /*
 576  * This function handles the command response of get 11d domain information.
 577  */
 578 static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv,
 579                                            struct host_cmd_ds_command *resp)
 580 {
 581         struct host_cmd_ds_802_11d_domain_info_rsp *domain_info =
 582                 &resp->params.domain_info_resp;
 583         struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain;
 584         u16 action = le16_to_cpu(domain_info->action);
 585         u8 no_of_triplet;
 586
 587         no_of_triplet = (u8) ((le16_to_cpu(domain->header.len)
 588                                 - IEEE80211_COUNTRY_STRING_LEN)
 589                               / sizeof(struct ieee80211_country_ie_triplet));
 590
 591         dev_dbg(priv->adapter->dev,
 592                 "info: 11D Domain Info Resp: no_of_triplet=%d\n",
 593                 no_of_triplet);
 594
 595         if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) {
 596                 dev_warn(priv->adapter->dev,
 597                          "11D: invalid number of triplets %d returned\n",
 598                          no_of_triplet);
 599                 return -1;
 600         }
 601
 602         switch (action) {
 603         case HostCmd_ACT_GEN_SET:  /* Proc Set Action */
 604                 break;
 605         case HostCmd_ACT_GEN_GET:
 606                 break;
 607         default:
 608                 dev_err(priv->adapter->dev,
 609                         "11D: invalid action:%d\n", domain_info->action);
 610                 return -1;
 611         }
 612
 613         return 0;
 614 }
 615
 616 /*
 617  * This function handles the command response of get RF channel.
 618  *
 619  * Handling includes changing the header fields into CPU format
 620  * and saving the new channel in driver.
 621  */
 622 static int mwifiex_ret_802_11_rf_channel(struct mwifiex_private *priv,
 623                                          struct host_cmd_ds_command *resp,
 624                                          u16 *data_buf)
 625 {
 626         struct host_cmd_ds_802_11_rf_channel *rf_channel =
 627                 &resp->params.rf_channel;
 628         u16 new_channel = le16_to_cpu(rf_channel->current_channel);
 629
 630         if (priv->curr_bss_params.bss_descriptor.channel != new_channel) {
 631                 dev_dbg(priv->adapter->dev, "cmd: Channel Switch: %d to %d\n",
 632                         priv->curr_bss_params.bss_descriptor.channel,
 633                         new_channel);
 634                 /* Update the channel again */
 635                 priv->curr_bss_params.bss_descriptor.channel = new_channel;
 636         }
 637
 638         if (data_buf)
 639                 *data_buf = new_channel;
 640
 641         return 0;
 642 }
 643
 644 /*
 645  * This function handles the command response of get extended version.
 646  *
 647  * Handling includes forming the extended version string and sending it
 648  * to application.
 649  */
 650 static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 651                                struct host_cmd_ds_command *resp,
 652                                struct host_cmd_ds_version_ext *version_ext)
 653 {
 654         struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
 655
 656         if (version_ext) {
 657                 version_ext->version_str_sel = ver_ext->version_str_sel;
 658                 memcpy(version_ext->version_str, ver_ext->version_str,
 659                        sizeof(char) * 128);
 660                 memcpy(priv->version_str, ver_ext->version_str, 128);
 661         }
 662         return 0;
 663 }
 664
 665 /*
 666  * This function handles the command response of register access.
 667  *
 668  * The register value and offset are returned to the user. For EEPROM
 669  * access, the byte count is also returned.
 670  */
 671 static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp,
 672                                   void *data_buf)
 673 {
 674         struct mwifiex_ds_reg_rw *reg_rw;
 675         struct mwifiex_ds_read_eeprom *eeprom;
 676         union reg {
 677                 struct host_cmd_ds_mac_reg_access *mac;
 678                 struct host_cmd_ds_bbp_reg_access *bbp;
 679                 struct host_cmd_ds_rf_reg_access *rf;
 680                 struct host_cmd_ds_pmic_reg_access *pmic;
 681                 struct host_cmd_ds_802_11_eeprom_access *eeprom;
 682         } r;
 683
 684         if (!data_buf)
 685                 return 0;
 686
 687         reg_rw = data_buf;
 688         eeprom = data_buf;
 689         switch (type) {
 690         case HostCmd_CMD_MAC_REG_ACCESS:
 691                 r.mac = (struct host_cmd_ds_mac_reg_access *)
 692                         &resp->params.mac_reg;
 693                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.mac->offset));
 694                 reg_rw->value = r.mac->value;
 695                 break;
 696         case HostCmd_CMD_BBP_REG_ACCESS:
 697                 r.bbp = (struct host_cmd_ds_bbp_reg_access *)
 698                         &resp->params.bbp_reg;
 699                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.bbp->offset));
 700                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 701                 break;
 702
 703         case HostCmd_CMD_RF_REG_ACCESS:
 704                 r.rf = (struct host_cmd_ds_rf_reg_access *)
 705                        &resp->params.rf_reg;
 706                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 707                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 708                 break;
 709         case HostCmd_CMD_PMIC_REG_ACCESS:
 710                 r.pmic = (struct host_cmd_ds_pmic_reg_access *)
 711                          &resp->params.pmic_reg;
 712                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.pmic->offset));
 713                 reg_rw->value = cpu_to_le32((u32) r.pmic->value);
 714                 break;
 715         case HostCmd_CMD_CAU_REG_ACCESS:
 716                 r.rf = (struct host_cmd_ds_rf_reg_access *)
 717                        &resp->params.rf_reg;
 718                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 719                 reg_rw->value = cpu_to_le32((u32) r.rf->value);
 720                 break;
 721         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 722                 r.eeprom = (struct host_cmd_ds_802_11_eeprom_access *)
 723                            &resp->params.eeprom;
 724                 pr_debug("info: EEPROM read len=%x\n", r.eeprom->byte_count);
 725                 if (le16_to_cpu(eeprom->byte_count) <
 726                     le16_to_cpu(r.eeprom->byte_count)) {
 727                         eeprom->byte_count = cpu_to_le16(0);
 728                         pr_debug("info: EEPROM read length is too big\n");
 729                         return -1;
 730                 }
 731                 eeprom->offset = r.eeprom->offset;
 732                 eeprom->byte_count = r.eeprom->byte_count;
 733                 if (le16_to_cpu(eeprom->byte_count) > 0)
 734                         memcpy(&eeprom->value, &r.eeprom->value,
 735                                le16_to_cpu(r.eeprom->byte_count));
 736
 737                 break;
 738         default:
 739                 return -1;
 740         }
 741         return 0;
 742 }
 743
 744 /*
 745  * This function handles the command response of get IBSS coalescing status.
 746  *
 747  * If the received BSSID is different than the current one, the current BSSID,
 748  * beacon interval, ATIM window and ERP information are updated, along with
 749  * changing the ad-hoc state accordingly.
 750  */
 751 static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 752                                               struct host_cmd_ds_command *resp)
 753 {
 754         struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
 755                                         &(resp->params.ibss_coalescing);
 756         u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
 757
 758         if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
 759                 return 0;
 760
 761         dev_dbg(priv->adapter->dev,
 762                 "info: new BSSID %pM\n", ibss_coal_resp->bssid);
 763
 764         /* If rsp has NULL BSSID, Just return..... No Action */
 765         if (!memcmp(ibss_coal_resp->bssid, zero_mac, ETH_ALEN)) {
 766                 dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
 767                 return 0;
 768         }
 769
 770         /* If BSSID is diff, modify current BSS parameters */
 771         if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
 772                    ibss_coal_resp->bssid, ETH_ALEN)) {
 773                 /* BSSID */
 774                 memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
 775                        ibss_coal_resp->bssid, ETH_ALEN);
 776
 777                 /* Beacon Interval */
 778                 priv->curr_bss_params.bss_descriptor.beacon_period
 779                         = le16_to_cpu(ibss_coal_resp->beacon_interval);
 780
 781                 /* ERP Information */
 782                 priv->curr_bss_params.bss_descriptor.erp_flags =
 783                         (u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect);
 784
 785                 priv->adhoc_state = ADHOC_COALESCED;
 786         }
 787
 788         return 0;
 789 }
 790
 791 /*
 792  * This function handles the command response for subscribe event command.
 793  */
 794 static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
 795                                  struct host_cmd_ds_command *resp)
 796 {
 797         struct host_cmd_ds_802_11_subsc_evt *cmd_sub_event =
 798                 (struct host_cmd_ds_802_11_subsc_evt *)&resp->params.subsc_evt;
 799
 800         dev_dbg(priv->adapter->dev, "Bitmap of currently subscribed events: %16x\n",
 801                 le16_to_cpu(cmd_sub_event->events));
 802
 803         return 0;
 804 }
 805
 806 /*
 807  * This function handles the command responses.
 808  *
 809  * This is a generic function, which calls command specific
 810  * response handlers based on the command ID.
 811  */
 812 int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 813                                 struct host_cmd_ds_command *resp)
 814 {
 815         int ret = 0;
 816         struct mwifiex_adapter *adapter = priv->adapter;
 817         void *data_buf = adapter->curr_cmd->data_buf;
 818
 819         /* If the command is not successful, cleanup and return failure */
 820         if (resp->result != HostCmd_RESULT_OK) {
 821                 mwifiex_process_cmdresp_error(priv, resp);
 822                 return -1;
 823         }
 824         /* Command successful, handle response */
 825         switch (cmdresp_no) {
 826         case HostCmd_CMD_GET_HW_SPEC:
 827                 ret = mwifiex_ret_get_hw_spec(priv, resp);
 828                 break;
 829         case HostCmd_CMD_MAC_CONTROL:
 830                 break;
 831         case HostCmd_CMD_802_11_MAC_ADDRESS:
 832                 ret = mwifiex_ret_802_11_mac_address(priv, resp);
 833                 break;
 834         case HostCmd_CMD_MAC_MULTICAST_ADR:
 835                 ret = mwifiex_ret_mac_multicast_adr(priv, resp);
 836                 break;
 837         case HostCmd_CMD_TX_RATE_CFG:
 838                 ret = mwifiex_ret_tx_rate_cfg(priv, resp, data_buf);
 839                 break;
 840         case HostCmd_CMD_802_11_SCAN:
 841                 ret = mwifiex_ret_802_11_scan(priv, resp);
 842                 adapter->curr_cmd->wait_q_enabled = false;
 843                 break;
 844         case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 845                 ret = mwifiex_ret_802_11_scan(priv, resp);
 846                 dev_dbg(adapter->dev,
 847                         "info: CMD_RESP: BG_SCAN result is ready!\n");
 848                 break;
 849         case HostCmd_CMD_TXPWR_CFG:
 850                 ret = mwifiex_ret_tx_power_cfg(priv, resp);
 851                 break;
 852         case HostCmd_CMD_802_11_PS_MODE_ENH:
 853                 ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf);
 854                 break;
 855         case HostCmd_CMD_802_11_HS_CFG_ENH:
 856                 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
 857                 break;
 858         case HostCmd_CMD_802_11_ASSOCIATE:
 859                 ret = mwifiex_ret_802_11_associate(priv, resp);
 860                 break;
 861         case HostCmd_CMD_802_11_DEAUTHENTICATE:
 862                 ret = mwifiex_ret_802_11_deauthenticate(priv, resp);
 863                 break;
 864         case HostCmd_CMD_802_11_AD_HOC_START:
 865         case HostCmd_CMD_802_11_AD_HOC_JOIN:
 866                 ret = mwifiex_ret_802_11_ad_hoc(priv, resp);
 867                 break;
 868         case HostCmd_CMD_802_11_AD_HOC_STOP:
 869                 ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp);
 870                 break;
 871         case HostCmd_CMD_802_11_GET_LOG:
 872                 ret = mwifiex_ret_get_log(priv, resp, data_buf);
 873                 break;
 874         case HostCmd_CMD_RSSI_INFO:
 875                 ret = mwifiex_ret_802_11_rssi_info(priv, resp);
 876                 break;
 877         case HostCmd_CMD_802_11_SNMP_MIB:
 878                 ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf);
 879                 break;
 880         case HostCmd_CMD_802_11_TX_RATE_QUERY:
 881                 ret = mwifiex_ret_802_11_tx_rate_query(priv, resp);
 882                 break;
 883         case HostCmd_CMD_802_11_RF_CHANNEL:
 884                 ret = mwifiex_ret_802_11_rf_channel(priv, resp, data_buf);
 885                 break;
 886         case HostCmd_CMD_VERSION_EXT:
 887                 ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
 888                 break;
 889         case HostCmd_CMD_FUNC_INIT:
 890         case HostCmd_CMD_FUNC_SHUTDOWN:
 891                 break;
 892         case HostCmd_CMD_802_11_KEY_MATERIAL:
 893                 ret = mwifiex_ret_802_11_key_material(priv, resp);
 894                 break;
 895         case HostCmd_CMD_802_11D_DOMAIN_INFO:
 896                 ret = mwifiex_ret_802_11d_domain_info(priv, resp);
 897                 break;
 898         case HostCmd_CMD_11N_ADDBA_REQ:
 899                 ret = mwifiex_ret_11n_addba_req(priv, resp);
 900                 break;
 901         case HostCmd_CMD_11N_DELBA:
 902                 ret = mwifiex_ret_11n_delba(priv, resp);
 903                 break;
 904         case HostCmd_CMD_11N_ADDBA_RSP:
 905                 ret = mwifiex_ret_11n_addba_resp(priv, resp);
 906                 break;
 907         case HostCmd_CMD_RECONFIGURE_TX_BUFF:
 908                 adapter->tx_buf_size = (u16) le16_to_cpu(resp->params.
 909                                                              tx_buf.buff_size);
 910                 adapter->tx_buf_size = (adapter->tx_buf_size
 911                                         / MWIFIEX_SDIO_BLOCK_SIZE)
 912                                        * MWIFIEX_SDIO_BLOCK_SIZE;
 913                 adapter->curr_tx_buf_size = adapter->tx_buf_size;
 914                 dev_dbg(adapter->dev,
 915                         "cmd: max_tx_buf_size=%d, tx_buf_size=%d\n",
 916                         adapter->max_tx_buf_size, adapter->tx_buf_size);
 917
 918                 if (adapter->if_ops.update_mp_end_port)
 919                         adapter->if_ops.update_mp_end_port(adapter,
 920                                 le16_to_cpu(resp->params.tx_buf.mp_end_port));
 921                 break;
 922         case HostCmd_CMD_AMSDU_AGGR_CTRL:
 923                 break;
 924         case HostCmd_CMD_WMM_GET_STATUS:
 925                 ret = mwifiex_ret_wmm_get_status(priv, resp);
 926                 break;
 927         case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
 928                 ret = mwifiex_ret_ibss_coalescing_status(priv, resp);
 929                 break;
 930         case HostCmd_CMD_MAC_REG_ACCESS:
 931         case HostCmd_CMD_BBP_REG_ACCESS:
 932         case HostCmd_CMD_RF_REG_ACCESS:
 933         case HostCmd_CMD_PMIC_REG_ACCESS:
 934         case HostCmd_CMD_CAU_REG_ACCESS:
 935         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 936                 ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf);
 937                 break;
 938         case HostCmd_CMD_SET_BSS_MODE:
 939                 break;
 940         case HostCmd_CMD_11N_CFG:
 941                 break;
 942         case HostCmd_CMD_PCIE_DESC_DETAILS:
 943                 break;
 944         case HostCmd_CMD_802_11_SUBSCRIBE_EVENT:
 945                 ret = mwifiex_ret_subsc_evt(priv, resp);
 946                 break;
 947         default:
 948                 dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n",
 949                         resp->command);
 950                 break;
 951         }
 952
 953         return ret;
 954 }