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                 break;
  89
  90         case HostCmd_CMD_MAC_CONTROL:
  91                 break;
  92
  93         default:
  94                 break;
  95         }
  96         /* Handling errors here */
  97         mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
  98
  99         spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
 100         adapter->curr_cmd = NULL;
 101         spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 102 }
 103
 104 /*
 105  * This function handles the command response of get RSSI info.
 106  *
 107  * Handling includes changing the header fields into CPU format
 108  * and saving the following parameters in driver -
 109  *      - Last data and beacon RSSI value
 110  *      - Average data and beacon RSSI value
 111  *      - Last data and beacon NF value
 112  *      - Average data and beacon NF value
 113  *
 114  * The parameters are send to the application as well, along with
 115  * calculated SNR values.
 116  */
 117 static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
 118                                         struct host_cmd_ds_command *resp)
 119 {
 120         struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
 121                                                 &resp->params.rssi_info_rsp;
 122         struct mwifiex_ds_misc_subsc_evt *subsc_evt =
 123                                                 &priv->async_subsc_evt_storage;
 124
 125         priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last);
 126         priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last);
 127
 128         priv->data_rssi_avg = le16_to_cpu(rssi_info_rsp->data_rssi_avg);
 129         priv->data_nf_avg = le16_to_cpu(rssi_info_rsp->data_nf_avg);
 130
 131         priv->bcn_rssi_last = le16_to_cpu(rssi_info_rsp->bcn_rssi_last);
 132         priv->bcn_nf_last = le16_to_cpu(rssi_info_rsp->bcn_nf_last);
 133
 134         priv->bcn_rssi_avg = le16_to_cpu(rssi_info_rsp->bcn_rssi_avg);
 135         priv->bcn_nf_avg = le16_to_cpu(rssi_info_rsp->bcn_nf_avg);
 136
 137         if (priv->subsc_evt_rssi_state == EVENT_HANDLED)
 138                 return 0;
 139
 140         memset(subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 141
 142         /* Resubscribe low and high rssi events with new thresholds */
 143         subsc_evt->events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 144         subsc_evt->action = HostCmd_ACT_BITWISE_SET;
 145         if (priv->subsc_evt_rssi_state == RSSI_LOW_RECVD) {
 146                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg -
 147                                 priv->cqm_rssi_hyst);
 148                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 149         } else if (priv->subsc_evt_rssi_state == RSSI_HIGH_RECVD) {
 150                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 151                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg +
 152                                 priv->cqm_rssi_hyst);
 153         }
 154         subsc_evt->bcn_l_rssi_cfg.evt_freq = 1;
 155         subsc_evt->bcn_h_rssi_cfg.evt_freq = 1;
 156
 157         priv->subsc_evt_rssi_state = EVENT_HANDLED;
 158
 159         mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 160                                0, 0, subsc_evt);
 161
 162         return 0;
 163 }
 164
 165 /*
 166  * This function handles the command response of set/get SNMP
 167  * MIB parameters.
 168  *
 169  * Handling includes changing the header fields into CPU format
 170  * and saving the parameter in driver.
 171  *
 172  * The following parameters are supported -
 173  *      - Fragmentation threshold
 174  *      - RTS threshold
 175  *      - Short retry limit
 176  */
 177 static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
 178                                        struct host_cmd_ds_command *resp,
 179                                        u32 *data_buf)
 180 {
 181         struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 182         u16 oid = le16_to_cpu(smib->oid);
 183         u16 query_type = le16_to_cpu(smib->query_type);
 184         u32 ul_temp;
 185
 186         dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x,"
 187                 " query_type = %#x, buf size = %#x\n",
 188                 oid, query_type, le16_to_cpu(smib->buf_size));
 189         if (query_type == HostCmd_ACT_GEN_GET) {
 190                 ul_temp = le16_to_cpu(*((__le16 *) (smib->value)));
 191                 if (data_buf)
 192                         *data_buf = ul_temp;
 193                 switch (oid) {
 194                 case FRAG_THRESH_I:
 195                         dev_dbg(priv->adapter->dev,
 196                                 "info: SNMP_RESP: FragThsd =%u\n", ul_temp);
 197                         break;
 198                 case RTS_THRESH_I:
 199                         dev_dbg(priv->adapter->dev,
 200                                 "info: SNMP_RESP: RTSThsd =%u\n", ul_temp);
 201                         break;
 202                 case SHORT_RETRY_LIM_I:
 203                         dev_dbg(priv->adapter->dev,
 204                                 "info: SNMP_RESP: TxRetryCount=%u\n", ul_temp);
 205                         break;
 206                 case DTIM_PERIOD_I:
 207                         dev_dbg(priv->adapter->dev,
 208                                 "info: SNMP_RESP: DTIM period=%u\n", ul_temp);
 209                 default:
 210                         break;
 211                 }
 212         }
 213
 214         return 0;
 215 }
 216
 217 /*
 218  * This function handles the command response of get log request
 219  *
 220  * Handling includes changing the header fields into CPU format
 221  * and sending the received parameters to application.
 222  */
 223 static int mwifiex_ret_get_log(struct mwifiex_private *priv,
 224                                struct host_cmd_ds_command *resp,
 225                                struct mwifiex_ds_get_stats *stats)
 226 {
 227         struct host_cmd_ds_802_11_get_log *get_log =
 228                 &resp->params.get_log;
 229
 230         if (stats) {
 231                 stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame);
 232                 stats->failed = le32_to_cpu(get_log->failed);
 233                 stats->retry = le32_to_cpu(get_log->retry);
 234                 stats->multi_retry = le32_to_cpu(get_log->multi_retry);
 235                 stats->frame_dup = le32_to_cpu(get_log->frame_dup);
 236                 stats->rts_success = le32_to_cpu(get_log->rts_success);
 237                 stats->rts_failure = le32_to_cpu(get_log->rts_failure);
 238                 stats->ack_failure = le32_to_cpu(get_log->ack_failure);
 239                 stats->rx_frag = le32_to_cpu(get_log->rx_frag);
 240                 stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame);
 241                 stats->fcs_error = le32_to_cpu(get_log->fcs_error);
 242                 stats->tx_frame = le32_to_cpu(get_log->tx_frame);
 243                 stats->wep_icv_error[0] =
 244                         le32_to_cpu(get_log->wep_icv_err_cnt[0]);
 245                 stats->wep_icv_error[1] =
 246                         le32_to_cpu(get_log->wep_icv_err_cnt[1]);
 247                 stats->wep_icv_error[2] =
 248                         le32_to_cpu(get_log->wep_icv_err_cnt[2]);
 249                 stats->wep_icv_error[3] =
 250                         le32_to_cpu(get_log->wep_icv_err_cnt[3]);
 251         }
 252
 253         return 0;
 254 }
 255
 256 /*
 257  * This function handles the command response of set/get Tx rate
 258  * configurations.
 259  *
 260  * Handling includes changing the header fields into CPU format
 261  * and saving the following parameters in driver -
 262  *      - DSSS rate bitmap
 263  *      - OFDM rate bitmap
 264  *      - HT MCS rate bitmaps
 265  *
 266  * Based on the new rate bitmaps, the function re-evaluates if
 267  * auto data rate has been activated. If not, it sends another
 268  * query to the firmware to get the current Tx data rate.
 269  */
 270 static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 271                                    struct host_cmd_ds_command *resp)
 272 {
 273         struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
 274         struct mwifiex_rate_scope *rate_scope;
 275         struct mwifiex_ie_types_header *head;
 276         u16 tlv, tlv_buf_len;
 277         u8 *tlv_buf;
 278         u32 i;
 279
 280         tlv_buf = ((u8 *)rate_cfg) +
 281                         sizeof(struct host_cmd_ds_tx_rate_cfg);
 282         tlv_buf_len = *(u16 *) (tlv_buf + sizeof(u16));
 283
 284         while (tlv_buf && tlv_buf_len > 0) {
 285                 tlv = (*tlv_buf);
 286                 tlv = tlv | (*(tlv_buf + 1) << 8);
 287
 288                 switch (tlv) {
 289                 case TLV_TYPE_RATE_SCOPE:
 290                         rate_scope = (struct mwifiex_rate_scope *) tlv_buf;
 291                         priv->bitmap_rates[0] =
 292                                 le16_to_cpu(rate_scope->hr_dsss_rate_bitmap);
 293                         priv->bitmap_rates[1] =
 294                                 le16_to_cpu(rate_scope->ofdm_rate_bitmap);
 295                         for (i = 0;
 296                              i <
 297                              sizeof(rate_scope->ht_mcs_rate_bitmap) /
 298                              sizeof(u16); i++)
 299                                 priv->bitmap_rates[2 + i] =
 300                                         le16_to_cpu(rate_scope->
 301                                                     ht_mcs_rate_bitmap[i]);
 302                         break;
 303                         /* Add RATE_DROP tlv here */
 304                 }
 305
 306                 head = (struct mwifiex_ie_types_header *) tlv_buf;
 307                 tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
 308                 tlv_buf_len -= le16_to_cpu(head->len);
 309         }
 310
 311         priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
 312
 313         if (priv->is_data_rate_auto)
 314                 priv->data_rate = 0;
 315         else
 316                 return mwifiex_send_cmd_async(priv,
 317                                               HostCmd_CMD_802_11_TX_RATE_QUERY,
 318                                               HostCmd_ACT_GEN_GET, 0, NULL);
 319
 320         return 0;
 321 }
 322
 323 /*
 324  * This function handles the command response of get Tx power level.
 325  *
 326  * Handling includes saving the maximum and minimum Tx power levels
 327  * in driver, as well as sending the values to user.
 328  */
 329 static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 330 {
 331         int length, max_power = -1, min_power = -1;
 332         struct mwifiex_types_power_group *pg_tlv_hdr;
 333         struct mwifiex_power_group *pg;
 334
 335         if (!data_buf)
 336                 return -1;
 337
 338         pg_tlv_hdr = (struct mwifiex_types_power_group *)
 339                 ((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 340         pg = (struct mwifiex_power_group *)
 341                 ((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
 342         length = pg_tlv_hdr->length;
 343         if (length > 0) {
 344                 max_power = pg->power_max;
 345                 min_power = pg->power_min;
 346                 length -= sizeof(struct mwifiex_power_group);
 347         }
 348         while (length) {
 349                 pg++;
 350                 if (max_power < pg->power_max)
 351                         max_power = pg->power_max;
 352
 353                 if (min_power > pg->power_min)
 354                         min_power = pg->power_min;
 355
 356                 length -= sizeof(struct mwifiex_power_group);
 357         }
 358         if (pg_tlv_hdr->length > 0) {
 359                 priv->min_tx_power_level = (u8) min_power;
 360                 priv->max_tx_power_level = (u8) max_power;
 361         }
 362
 363         return 0;
 364 }
 365
 366 /*
 367  * This function handles the command response of set/get Tx power
 368  * configurations.
 369  *
 370  * Handling includes changing the header fields into CPU format
 371  * and saving the current Tx power level in driver.
 372  */
 373 static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
 374                                     struct host_cmd_ds_command *resp)
 375 {
 376         struct mwifiex_adapter *adapter = priv->adapter;
 377         struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
 378         struct mwifiex_types_power_group *pg_tlv_hdr;
 379         struct mwifiex_power_group *pg;
 380         u16 action = le16_to_cpu(txp_cfg->action);
 381
 382         switch (action) {
 383         case HostCmd_ACT_GEN_GET:
 384                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 385                         ((u8 *) txp_cfg +
 386                          sizeof(struct host_cmd_ds_txpwr_cfg));
 387
 388                 pg = (struct mwifiex_power_group *)
 389                         ((u8 *) pg_tlv_hdr +
 390                          sizeof(struct mwifiex_types_power_group));
 391
 392                 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
 393                         mwifiex_get_power_level(priv, txp_cfg);
 394
 395                 priv->tx_power_level = (u16) pg->power_min;
 396                 break;
 397
 398         case HostCmd_ACT_GEN_SET:
 399                 if (!le32_to_cpu(txp_cfg->mode))
 400                         break;
 401
 402                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 403                         ((u8 *) txp_cfg +
 404                          sizeof(struct host_cmd_ds_txpwr_cfg));
 405
 406                 pg = (struct mwifiex_power_group *)
 407                         ((u8 *) pg_tlv_hdr +
 408                          sizeof(struct mwifiex_types_power_group));
 409
 410                 if (pg->power_max == pg->power_min)
 411                         priv->tx_power_level = (u16) pg->power_min;
 412                 break;
 413         default:
 414                 dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n",
 415                         action);
 416                 return 0;
 417         }
 418         dev_dbg(adapter->dev,
 419                 "info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
 420                priv->tx_power_level, priv->max_tx_power_level,
 421                priv->min_tx_power_level);
 422
 423         return 0;
 424 }
 425
 426 /*
 427  * This function handles the command response of get RF Tx power.
 428  */
 429 static int mwifiex_ret_rf_tx_power(struct mwifiex_private *priv,
 430                                    struct host_cmd_ds_command *resp)
 431 {
 432         struct host_cmd_ds_rf_tx_pwr *txp = &resp->params.txp;
 433         u16 action = le16_to_cpu(txp->action);
 434
 435         priv->tx_power_level = le16_to_cpu(txp->cur_level);
 436
 437         if (action == HostCmd_ACT_GEN_GET) {
 438                 priv->max_tx_power_level = txp->max_power;
 439                 priv->min_tx_power_level = txp->min_power;
 440         }
 441
 442         dev_dbg(priv->adapter->dev,
 443                 "Current TxPower Level=%d, Max Power=%d, Min Power=%d\n",
 444                 priv->tx_power_level, priv->max_tx_power_level,
 445                 priv->min_tx_power_level);
 446
 447         return 0;
 448 }
 449
 450 /*
 451  * This function handles the command response of set rf antenna
 452  */
 453 static int mwifiex_ret_rf_antenna(struct mwifiex_private *priv,
 454                                   struct host_cmd_ds_command *resp)
 455 {
 456         struct host_cmd_ds_rf_ant_mimo *ant_mimo = &resp->params.ant_mimo;
 457         struct host_cmd_ds_rf_ant_siso *ant_siso = &resp->params.ant_siso;
 458         struct mwifiex_adapter *adapter = priv->adapter;
 459
 460         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
 461                 dev_dbg(adapter->dev,
 462                         "RF_ANT_RESP: Tx action = 0x%x, Tx Mode = 0x%04x"
 463                         " Rx action = 0x%x, Rx Mode = 0x%04x\n",
 464                         le16_to_cpu(ant_mimo->action_tx),
 465                         le16_to_cpu(ant_mimo->tx_ant_mode),
 466                         le16_to_cpu(ant_mimo->action_rx),
 467                         le16_to_cpu(ant_mimo->rx_ant_mode));
 468         else
 469                 dev_dbg(adapter->dev,
 470                         "RF_ANT_RESP: action = 0x%x, Mode = 0x%04x\n",
 471                         le16_to_cpu(ant_siso->action),
 472                         le16_to_cpu(ant_siso->ant_mode));
 473
 474         return 0;
 475 }
 476
 477 /*
 478  * This function handles the command response of set/get MAC address.
 479  *
 480  * Handling includes saving the MAC address in driver.
 481  */
 482 static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv,
 483                                           struct host_cmd_ds_command *resp)
 484 {
 485         struct host_cmd_ds_802_11_mac_address *cmd_mac_addr =
 486                                                         &resp->params.mac_addr;
 487
 488         memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN);
 489
 490         dev_dbg(priv->adapter->dev,
 491                 "info: set mac address: %pM\n", priv->curr_addr);
 492
 493         return 0;
 494 }
 495
 496 /*
 497  * This function handles the command response of set/get MAC multicast
 498  * address.
 499  */
 500 static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv,
 501                                          struct host_cmd_ds_command *resp)
 502 {
 503         return 0;
 504 }
 505
 506 /*
 507  * This function handles the command response of get Tx rate query.
 508  *
 509  * Handling includes changing the header fields into CPU format
 510  * and saving the Tx rate and HT information parameters in driver.
 511  *
 512  * Both rate configuration and current data rate can be retrieved
 513  * with this request.
 514  */
 515 static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv,
 516                                             struct host_cmd_ds_command *resp)
 517 {
 518         priv->tx_rate = resp->params.tx_rate.tx_rate;
 519         priv->tx_htinfo = resp->params.tx_rate.ht_info;
 520         if (!priv->is_data_rate_auto)
 521                 priv->data_rate =
 522                         mwifiex_index_to_data_rate(priv, priv->tx_rate,
 523                                                    priv->tx_htinfo);
 524
 525         return 0;
 526 }
 527
 528 /*
 529  * This function handles the command response of a deauthenticate
 530  * command.
 531  *
 532  * If the deauthenticated MAC matches the current BSS MAC, the connection
 533  * state is reset.
 534  */
 535 static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv,
 536                                              struct host_cmd_ds_command *resp)
 537 {
 538         struct mwifiex_adapter *adapter = priv->adapter;
 539
 540         adapter->dbg.num_cmd_deauth++;
 541         if (!memcmp(resp->params.deauth.mac_addr,
 542                     &priv->curr_bss_params.bss_descriptor.mac_address,
 543                     sizeof(resp->params.deauth.mac_addr)))
 544                 mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 545
 546         return 0;
 547 }
 548
 549 /*
 550  * This function handles the command response of ad-hoc stop.
 551  *
 552  * The function resets the connection state in driver.
 553  */
 554 static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv,
 555                                           struct host_cmd_ds_command *resp)
 556 {
 557         mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 558         return 0;
 559 }
 560
 561 /*
 562  * This function handles the command response of set/get key material.
 563  *
 564  * Handling includes updating the driver parameters to reflect the
 565  * changes.
 566  */
 567 static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv,
 568                                            struct host_cmd_ds_command *resp)
 569 {
 570         struct host_cmd_ds_802_11_key_material *key =
 571                                                 &resp->params.key_material;
 572
 573         if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) {
 574                 if ((le16_to_cpu(key->key_param_set.key_info) & KEY_MCAST)) {
 575                         dev_dbg(priv->adapter->dev, "info: key: GTK is set\n");
 576                         priv->wpa_is_gtk_set = true;
 577                         priv->scan_block = false;
 578                 }
 579         }
 580
 581         memset(priv->aes_key.key_param_set.key, 0,
 582                sizeof(key->key_param_set.key));
 583         priv->aes_key.key_param_set.key_len = key->key_param_set.key_len;
 584         memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key,
 585                le16_to_cpu(priv->aes_key.key_param_set.key_len));
 586
 587         return 0;
 588 }
 589
 590 /*
 591  * This function handles the command response of get 11d domain information.
 592  */
 593 static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv,
 594                                            struct host_cmd_ds_command *resp)
 595 {
 596         struct host_cmd_ds_802_11d_domain_info_rsp *domain_info =
 597                 &resp->params.domain_info_resp;
 598         struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain;
 599         u16 action = le16_to_cpu(domain_info->action);
 600         u8 no_of_triplet;
 601
 602         no_of_triplet = (u8) ((le16_to_cpu(domain->header.len)
 603                                 - IEEE80211_COUNTRY_STRING_LEN)
 604                               / sizeof(struct ieee80211_country_ie_triplet));
 605
 606         dev_dbg(priv->adapter->dev,
 607                 "info: 11D Domain Info Resp: no_of_triplet=%d\n",
 608                 no_of_triplet);
 609
 610         if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) {
 611                 dev_warn(priv->adapter->dev,
 612                          "11D: invalid number of triplets %d returned\n",
 613                          no_of_triplet);
 614                 return -1;
 615         }
 616
 617         switch (action) {
 618         case HostCmd_ACT_GEN_SET:  /* Proc Set Action */
 619                 break;
 620         case HostCmd_ACT_GEN_GET:
 621                 break;
 622         default:
 623                 dev_err(priv->adapter->dev,
 624                         "11D: invalid action:%d\n", domain_info->action);
 625                 return -1;
 626         }
 627
 628         return 0;
 629 }
 630
 631 /*
 632  * This function handles the command response of get extended version.
 633  *
 634  * Handling includes forming the extended version string and sending it
 635  * to application.
 636  */
 637 static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 638                                struct host_cmd_ds_command *resp,
 639                                struct host_cmd_ds_version_ext *version_ext)
 640 {
 641         struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
 642
 643         if (version_ext) {
 644                 version_ext->version_str_sel = ver_ext->version_str_sel;
 645                 memcpy(version_ext->version_str, ver_ext->version_str,
 646                        sizeof(char) * 128);
 647                 memcpy(priv->version_str, ver_ext->version_str, 128);
 648         }
 649         return 0;
 650 }
 651
 652 /*
 653  * This function handles the command response of remain on channel.
 654  */
 655 static int
 656 mwifiex_ret_remain_on_chan(struct mwifiex_private *priv,
 657                            struct host_cmd_ds_command *resp,
 658                            struct host_cmd_ds_remain_on_chan *roc_cfg)
 659 {
 660         struct host_cmd_ds_remain_on_chan *resp_cfg = &resp->params.roc_cfg;
 661
 662         if (roc_cfg)
 663                 memcpy(roc_cfg, resp_cfg, sizeof(*roc_cfg));
 664
 665         return 0;
 666 }
 667
 668 /*
 669  * This function handles the command response of P2P mode cfg.
 670  */
 671 static int
 672 mwifiex_ret_p2p_mode_cfg(struct mwifiex_private *priv,
 673                          struct host_cmd_ds_command *resp,
 674                          void *data_buf)
 675 {
 676         struct host_cmd_ds_p2p_mode_cfg *mode_cfg = &resp->params.mode_cfg;
 677
 678         if (data_buf)
 679                 *((u16 *)data_buf) = le16_to_cpu(mode_cfg->mode);
 680
 681         return 0;
 682 }
 683
 684 /*
 685  * This function handles the command response of register access.
 686  *
 687  * The register value and offset are returned to the user. For EEPROM
 688  * access, the byte count is also returned.
 689  */
 690 static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp,
 691                                   void *data_buf)
 692 {
 693         struct mwifiex_ds_reg_rw *reg_rw;
 694         struct mwifiex_ds_read_eeprom *eeprom;
 695         union reg {
 696                 struct host_cmd_ds_mac_reg_access *mac;
 697                 struct host_cmd_ds_bbp_reg_access *bbp;
 698                 struct host_cmd_ds_rf_reg_access *rf;
 699                 struct host_cmd_ds_pmic_reg_access *pmic;
 700                 struct host_cmd_ds_802_11_eeprom_access *eeprom;
 701         } r;
 702
 703         if (!data_buf)
 704                 return 0;
 705
 706         reg_rw = data_buf;
 707         eeprom = data_buf;
 708         switch (type) {
 709         case HostCmd_CMD_MAC_REG_ACCESS:
 710                 r.mac = &resp->params.mac_reg;
 711                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.mac->offset));
 712                 reg_rw->value = r.mac->value;
 713                 break;
 714         case HostCmd_CMD_BBP_REG_ACCESS:
 715                 r.bbp = &resp->params.bbp_reg;
 716                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.bbp->offset));
 717                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 718                 break;
 719
 720         case HostCmd_CMD_RF_REG_ACCESS:
 721                 r.rf = &resp->params.rf_reg;
 722                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 723                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 724                 break;
 725         case HostCmd_CMD_PMIC_REG_ACCESS:
 726                 r.pmic = &resp->params.pmic_reg;
 727                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.pmic->offset));
 728                 reg_rw->value = cpu_to_le32((u32) r.pmic->value);
 729                 break;
 730         case HostCmd_CMD_CAU_REG_ACCESS:
 731                 r.rf = &resp->params.rf_reg;
 732                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 733                 reg_rw->value = cpu_to_le32((u32) r.rf->value);
 734                 break;
 735         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 736                 r.eeprom = &resp->params.eeprom;
 737                 pr_debug("info: EEPROM read len=%x\n", r.eeprom->byte_count);
 738                 if (le16_to_cpu(eeprom->byte_count) <
 739                     le16_to_cpu(r.eeprom->byte_count)) {
 740                         eeprom->byte_count = cpu_to_le16(0);
 741                         pr_debug("info: EEPROM read length is too big\n");
 742                         return -1;
 743                 }
 744                 eeprom->offset = r.eeprom->offset;
 745                 eeprom->byte_count = r.eeprom->byte_count;
 746                 if (le16_to_cpu(eeprom->byte_count) > 0)
 747                         memcpy(&eeprom->value, &r.eeprom->value,
 748                                le16_to_cpu(r.eeprom->byte_count));
 749
 750                 break;
 751         default:
 752                 return -1;
 753         }
 754         return 0;
 755 }
 756
 757 /*
 758  * This function handles the command response of get IBSS coalescing status.
 759  *
 760  * If the received BSSID is different than the current one, the current BSSID,
 761  * beacon interval, ATIM window and ERP information are updated, along with
 762  * changing the ad-hoc state accordingly.
 763  */
 764 static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 765                                               struct host_cmd_ds_command *resp)
 766 {
 767         struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
 768                                         &(resp->params.ibss_coalescing);
 769
 770         if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
 771                 return 0;
 772
 773         dev_dbg(priv->adapter->dev,
 774                 "info: new BSSID %pM\n", ibss_coal_resp->bssid);
 775
 776         /* If rsp has NULL BSSID, Just return..... No Action */
 777         if (is_zero_ether_addr(ibss_coal_resp->bssid)) {
 778                 dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
 779                 return 0;
 780         }
 781
 782         /* If BSSID is diff, modify current BSS parameters */
 783         if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
 784                    ibss_coal_resp->bssid, ETH_ALEN)) {
 785                 /* BSSID */
 786                 memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
 787                        ibss_coal_resp->bssid, ETH_ALEN);
 788
 789                 /* Beacon Interval */
 790                 priv->curr_bss_params.bss_descriptor.beacon_period
 791                         = le16_to_cpu(ibss_coal_resp->beacon_interval);
 792
 793                 /* ERP Information */
 794                 priv->curr_bss_params.bss_descriptor.erp_flags =
 795                         (u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect);
 796
 797                 priv->adhoc_state = ADHOC_COALESCED;
 798         }
 799
 800         return 0;
 801 }
 802
 803 /*
 804  * This function handles the command response for subscribe event command.
 805  */
 806 static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
 807                                  struct host_cmd_ds_command *resp)
 808 {
 809         struct host_cmd_ds_802_11_subsc_evt *cmd_sub_event =
 810                 &resp->params.subsc_evt;
 811
 812         /* For every subscribe event command (Get/Set/Clear), FW reports the
 813          * current set of subscribed events*/
 814         dev_dbg(priv->adapter->dev, "Bitmap of currently subscribed events: %16x\n",
 815                 le16_to_cpu(cmd_sub_event->events));
 816
 817         return 0;
 818 }
 819
 820 /*
 821  * This function handles the command responses.
 822  *
 823  * This is a generic function, which calls command specific
 824  * response handlers based on the command ID.
 825  */
 826 int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 827                                 struct host_cmd_ds_command *resp)
 828 {
 829         int ret = 0;
 830         struct mwifiex_adapter *adapter = priv->adapter;
 831         void *data_buf = adapter->curr_cmd->data_buf;
 832
 833         /* If the command is not successful, cleanup and return failure */
 834         if (resp->result != HostCmd_RESULT_OK) {
 835                 mwifiex_process_cmdresp_error(priv, resp);
 836                 return -1;
 837         }
 838         /* Command successful, handle response */
 839         switch (cmdresp_no) {
 840         case HostCmd_CMD_GET_HW_SPEC:
 841                 ret = mwifiex_ret_get_hw_spec(priv, resp);
 842                 break;
 843         case HostCmd_CMD_MAC_CONTROL:
 844                 break;
 845         case HostCmd_CMD_802_11_MAC_ADDRESS:
 846                 ret = mwifiex_ret_802_11_mac_address(priv, resp);
 847                 break;
 848         case HostCmd_CMD_MAC_MULTICAST_ADR:
 849                 ret = mwifiex_ret_mac_multicast_adr(priv, resp);
 850                 break;
 851         case HostCmd_CMD_TX_RATE_CFG:
 852                 ret = mwifiex_ret_tx_rate_cfg(priv, resp);
 853                 break;
 854         case HostCmd_CMD_802_11_SCAN:
 855                 ret = mwifiex_ret_802_11_scan(priv, resp);
 856                 adapter->curr_cmd->wait_q_enabled = false;
 857                 break;
 858         case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 859                 ret = mwifiex_ret_802_11_scan(priv, resp);
 860                 dev_dbg(adapter->dev,
 861                         "info: CMD_RESP: BG_SCAN result is ready!\n");
 862                 break;
 863         case HostCmd_CMD_TXPWR_CFG:
 864                 ret = mwifiex_ret_tx_power_cfg(priv, resp);
 865                 break;
 866         case HostCmd_CMD_RF_TX_PWR:
 867                 ret = mwifiex_ret_rf_tx_power(priv, resp);
 868                 break;
 869         case HostCmd_CMD_RF_ANTENNA:
 870                 ret = mwifiex_ret_rf_antenna(priv, resp);
 871                 break;
 872         case HostCmd_CMD_802_11_PS_MODE_ENH:
 873                 ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf);
 874                 break;
 875         case HostCmd_CMD_802_11_HS_CFG_ENH:
 876                 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
 877                 break;
 878         case HostCmd_CMD_802_11_ASSOCIATE:
 879                 ret = mwifiex_ret_802_11_associate(priv, resp);
 880                 break;
 881         case HostCmd_CMD_802_11_DEAUTHENTICATE:
 882                 ret = mwifiex_ret_802_11_deauthenticate(priv, resp);
 883                 break;
 884         case HostCmd_CMD_802_11_AD_HOC_START:
 885         case HostCmd_CMD_802_11_AD_HOC_JOIN:
 886                 ret = mwifiex_ret_802_11_ad_hoc(priv, resp);
 887                 break;
 888         case HostCmd_CMD_802_11_AD_HOC_STOP:
 889                 ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp);
 890                 break;
 891         case HostCmd_CMD_802_11_GET_LOG:
 892                 ret = mwifiex_ret_get_log(priv, resp, data_buf);
 893                 break;
 894         case HostCmd_CMD_RSSI_INFO:
 895                 ret = mwifiex_ret_802_11_rssi_info(priv, resp);
 896                 break;
 897         case HostCmd_CMD_802_11_SNMP_MIB:
 898                 ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf);
 899                 break;
 900         case HostCmd_CMD_802_11_TX_RATE_QUERY:
 901                 ret = mwifiex_ret_802_11_tx_rate_query(priv, resp);
 902                 break;
 903         case HostCmd_CMD_VERSION_EXT:
 904                 ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
 905                 break;
 906         case HostCmd_CMD_REMAIN_ON_CHAN:
 907                 ret = mwifiex_ret_remain_on_chan(priv, resp, data_buf);
 908                 break;
 909         case HostCmd_CMD_P2P_MODE_CFG:
 910                 ret = mwifiex_ret_p2p_mode_cfg(priv, resp, data_buf);
 911                 break;
 912         case HostCmd_CMD_MGMT_FRAME_REG:
 913         case HostCmd_CMD_FUNC_INIT:
 914         case HostCmd_CMD_FUNC_SHUTDOWN:
 915                 break;
 916         case HostCmd_CMD_802_11_KEY_MATERIAL:
 917                 ret = mwifiex_ret_802_11_key_material(priv, resp);
 918                 break;
 919         case HostCmd_CMD_802_11D_DOMAIN_INFO:
 920                 ret = mwifiex_ret_802_11d_domain_info(priv, resp);
 921                 break;
 922         case HostCmd_CMD_11N_ADDBA_REQ:
 923                 ret = mwifiex_ret_11n_addba_req(priv, resp);
 924                 break;
 925         case HostCmd_CMD_11N_DELBA:
 926                 ret = mwifiex_ret_11n_delba(priv, resp);
 927                 break;
 928         case HostCmd_CMD_11N_ADDBA_RSP:
 929                 ret = mwifiex_ret_11n_addba_resp(priv, resp);
 930                 break;
 931         case HostCmd_CMD_RECONFIGURE_TX_BUFF:
 932                 adapter->tx_buf_size = (u16) le16_to_cpu(resp->params.
 933                                                              tx_buf.buff_size);
 934                 adapter->tx_buf_size = (adapter->tx_buf_size
 935                                         / MWIFIEX_SDIO_BLOCK_SIZE)
 936                                        * MWIFIEX_SDIO_BLOCK_SIZE;
 937                 adapter->curr_tx_buf_size = adapter->tx_buf_size;
 938                 dev_dbg(adapter->dev,
 939                         "cmd: max_tx_buf_size=%d, tx_buf_size=%d\n",
 940                         adapter->max_tx_buf_size, adapter->tx_buf_size);
 941
 942                 if (adapter->if_ops.update_mp_end_port)
 943                         adapter->if_ops.update_mp_end_port(adapter,
 944                                 le16_to_cpu(resp->params.tx_buf.mp_end_port));
 945                 break;
 946         case HostCmd_CMD_AMSDU_AGGR_CTRL:
 947                 break;
 948         case HostCmd_CMD_WMM_GET_STATUS:
 949                 ret = mwifiex_ret_wmm_get_status(priv, resp);
 950                 break;
 951         case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
 952                 ret = mwifiex_ret_ibss_coalescing_status(priv, resp);
 953                 break;
 954         case HostCmd_CMD_MAC_REG_ACCESS:
 955         case HostCmd_CMD_BBP_REG_ACCESS:
 956         case HostCmd_CMD_RF_REG_ACCESS:
 957         case HostCmd_CMD_PMIC_REG_ACCESS:
 958         case HostCmd_CMD_CAU_REG_ACCESS:
 959         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 960                 ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf);
 961                 break;
 962         case HostCmd_CMD_SET_BSS_MODE:
 963                 break;
 964         case HostCmd_CMD_11N_CFG:
 965                 break;
 966         case HostCmd_CMD_PCIE_DESC_DETAILS:
 967                 break;
 968         case HostCmd_CMD_802_11_SUBSCRIBE_EVENT:
 969                 ret = mwifiex_ret_subsc_evt(priv, resp);
 970                 break;
 971         case HostCmd_CMD_UAP_SYS_CONFIG:
 972                 break;
 973         case HostCmd_CMD_UAP_BSS_START:
 974                 priv->bss_started = 1;
 975                 break;
 976         case HostCmd_CMD_UAP_BSS_STOP:
 977                 priv->bss_started = 0;
 978                 break;
 979         default:
 980                 dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n",
 981                         resp->command);
 982                 break;
 983         }
 984
 985         return ret;
 986 }