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