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 #include "11ac.h"
  28
  29
  30 /*
  31  * This function handles the command response error case.
  32  *
  33  * For scan response error, the function cancels all the pending
  34  * scan commands and generates an event to inform the applications
  35  * of the scan completion.
  36  *
  37  * For Power Save command failure, we do not retry enter PS
  38  * command in case of Ad-hoc mode.
  39  *
  40  * For all other response errors, the current command buffer is freed
  41  * and returned to the free command queue.
  42  */
  43 static void
  44 mwifiex_process_cmdresp_error(struct mwifiex_private *priv,
  45                               struct host_cmd_ds_command *resp)
  46 {
  47         struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
  48         struct mwifiex_adapter *adapter = priv->adapter;
  49         struct host_cmd_ds_802_11_ps_mode_enh *pm;
  50         unsigned long flags;
  51
  52         dev_err(adapter->dev, "CMD_RESP: cmd %#x error, result=%#x\n",
  53                 resp->command, resp->result);
  54
  55         if (adapter->curr_cmd->wait_q_enabled)
  56                 adapter->cmd_wait_q.status = -1;
  57
  58         switch (le16_to_cpu(resp->command)) {
  59         case HostCmd_CMD_802_11_PS_MODE_ENH:
  60                 pm = &resp->params.psmode_enh;
  61                 dev_err(adapter->dev,
  62                         "PS_MODE_ENH cmd failed: 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.ps_bitmap) & BITMAP_STA_PS) &&
  67                     priv->bss_mode == NL80211_IFTYPE_ADHOC)
  68                         adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
  69
  70                 break;
  71         case HostCmd_CMD_802_11_SCAN:
  72                 /* Cancel all pending scan command */
  73                 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
  74                 list_for_each_entry_safe(cmd_node, tmp_node,
  75                                          &adapter->scan_pending_q, list) {
  76                         list_del(&cmd_node->list);
  77                         spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
  78                                                flags);
  79                         mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
  80                         spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
  81                 }
  82                 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
  83
  84                 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
  85                 adapter->scan_processing = false;
  86                 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
  87                 if (priv->report_scan_result)
  88                         priv->report_scan_result = false;
  89                 break;
  90
  91         case HostCmd_CMD_MAC_CONTROL:
  92                 break;
  93
  94         default:
  95                 break;
  96         }
  97         /* Handling errors here */
  98         mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
  99
 100         spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
 101         adapter->curr_cmd = NULL;
 102         spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 103 }
 104
 105 /*
 106  * This function handles the command response of get RSSI info.
 107  *
 108  * Handling includes changing the header fields into CPU format
 109  * and saving the following parameters in driver -
 110  *      - Last data and beacon RSSI value
 111  *      - Average data and beacon RSSI value
 112  *      - Last data and beacon NF value
 113  *      - Average data and beacon NF value
 114  *
 115  * The parameters are send to the application as well, along with
 116  * calculated SNR values.
 117  */
 118 static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
 119                                         struct host_cmd_ds_command *resp)
 120 {
 121         struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
 122                                                 &resp->params.rssi_info_rsp;
 123         struct mwifiex_ds_misc_subsc_evt *subsc_evt =
 124                                                 &priv->async_subsc_evt_storage;
 125
 126         priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last);
 127         priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last);
 128
 129         priv->data_rssi_avg = le16_to_cpu(rssi_info_rsp->data_rssi_avg);
 130         priv->data_nf_avg = le16_to_cpu(rssi_info_rsp->data_nf_avg);
 131
 132         priv->bcn_rssi_last = le16_to_cpu(rssi_info_rsp->bcn_rssi_last);
 133         priv->bcn_nf_last = le16_to_cpu(rssi_info_rsp->bcn_nf_last);
 134
 135         priv->bcn_rssi_avg = le16_to_cpu(rssi_info_rsp->bcn_rssi_avg);
 136         priv->bcn_nf_avg = le16_to_cpu(rssi_info_rsp->bcn_nf_avg);
 137
 138         if (priv->subsc_evt_rssi_state == EVENT_HANDLED)
 139                 return 0;
 140
 141         memset(subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
 142
 143         /* Resubscribe low and high rssi events with new thresholds */
 144         subsc_evt->events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
 145         subsc_evt->action = HostCmd_ACT_BITWISE_SET;
 146         if (priv->subsc_evt_rssi_state == RSSI_LOW_RECVD) {
 147                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg -
 148                                 priv->cqm_rssi_hyst);
 149                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 150         } else if (priv->subsc_evt_rssi_state == RSSI_HIGH_RECVD) {
 151                 subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 152                 subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg +
 153                                 priv->cqm_rssi_hyst);
 154         }
 155         subsc_evt->bcn_l_rssi_cfg.evt_freq = 1;
 156         subsc_evt->bcn_h_rssi_cfg.evt_freq = 1;
 157
 158         priv->subsc_evt_rssi_state = EVENT_HANDLED;
 159
 160         mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
 161                                0, 0, subsc_evt);
 162
 163         return 0;
 164 }
 165
 166 /*
 167  * This function handles the command response of set/get SNMP
 168  * MIB parameters.
 169  *
 170  * Handling includes changing the header fields into CPU format
 171  * and saving the parameter in driver.
 172  *
 173  * The following parameters are supported -
 174  *      - Fragmentation threshold
 175  *      - RTS threshold
 176  *      - Short retry limit
 177  */
 178 static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
 179                                        struct host_cmd_ds_command *resp,
 180                                        u32 *data_buf)
 181 {
 182         struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
 183         u16 oid = le16_to_cpu(smib->oid);
 184         u16 query_type = le16_to_cpu(smib->query_type);
 185         u32 ul_temp;
 186
 187         dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x,"
 188                 " query_type = %#x, buf size = %#x\n",
 189                 oid, query_type, le16_to_cpu(smib->buf_size));
 190         if (query_type == HostCmd_ACT_GEN_GET) {
 191                 ul_temp = le16_to_cpu(*((__le16 *) (smib->value)));
 192                 if (data_buf)
 193                         *data_buf = ul_temp;
 194                 switch (oid) {
 195                 case FRAG_THRESH_I:
 196                         dev_dbg(priv->adapter->dev,
 197                                 "info: SNMP_RESP: FragThsd =%u\n", ul_temp);
 198                         break;
 199                 case RTS_THRESH_I:
 200                         dev_dbg(priv->adapter->dev,
 201                                 "info: SNMP_RESP: RTSThsd =%u\n", ul_temp);
 202                         break;
 203                 case SHORT_RETRY_LIM_I:
 204                         dev_dbg(priv->adapter->dev,
 205                                 "info: SNMP_RESP: TxRetryCount=%u\n", ul_temp);
 206                         break;
 207                 case DTIM_PERIOD_I:
 208                         dev_dbg(priv->adapter->dev,
 209                                 "info: SNMP_RESP: DTIM period=%u\n", ul_temp);
 210                 default:
 211                         break;
 212                 }
 213         }
 214
 215         return 0;
 216 }
 217
 218 /*
 219  * This function handles the command response of get log request
 220  *
 221  * Handling includes changing the header fields into CPU format
 222  * and sending the received parameters to application.
 223  */
 224 static int mwifiex_ret_get_log(struct mwifiex_private *priv,
 225                                struct host_cmd_ds_command *resp,
 226                                struct mwifiex_ds_get_stats *stats)
 227 {
 228         struct host_cmd_ds_802_11_get_log *get_log =
 229                 &resp->params.get_log;
 230
 231         if (stats) {
 232                 stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame);
 233                 stats->failed = le32_to_cpu(get_log->failed);
 234                 stats->retry = le32_to_cpu(get_log->retry);
 235                 stats->multi_retry = le32_to_cpu(get_log->multi_retry);
 236                 stats->frame_dup = le32_to_cpu(get_log->frame_dup);
 237                 stats->rts_success = le32_to_cpu(get_log->rts_success);
 238                 stats->rts_failure = le32_to_cpu(get_log->rts_failure);
 239                 stats->ack_failure = le32_to_cpu(get_log->ack_failure);
 240                 stats->rx_frag = le32_to_cpu(get_log->rx_frag);
 241                 stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame);
 242                 stats->fcs_error = le32_to_cpu(get_log->fcs_error);
 243                 stats->tx_frame = le32_to_cpu(get_log->tx_frame);
 244                 stats->wep_icv_error[0] =
 245                         le32_to_cpu(get_log->wep_icv_err_cnt[0]);
 246                 stats->wep_icv_error[1] =
 247                         le32_to_cpu(get_log->wep_icv_err_cnt[1]);
 248                 stats->wep_icv_error[2] =
 249                         le32_to_cpu(get_log->wep_icv_err_cnt[2]);
 250                 stats->wep_icv_error[3] =
 251                         le32_to_cpu(get_log->wep_icv_err_cnt[3]);
 252         }
 253
 254         return 0;
 255 }
 256
 257 /*
 258  * This function handles the command response of set/get Tx rate
 259  * configurations.
 260  *
 261  * Handling includes changing the header fields into CPU format
 262  * and saving the following parameters in driver -
 263  *      - DSSS rate bitmap
 264  *      - OFDM rate bitmap
 265  *      - HT MCS rate bitmaps
 266  *
 267  * Based on the new rate bitmaps, the function re-evaluates if
 268  * auto data rate has been activated. If not, it sends another
 269  * query to the firmware to get the current Tx data rate.
 270  */
 271 static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 272                                    struct host_cmd_ds_command *resp)
 273 {
 274         struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
 275         struct mwifiex_rate_scope *rate_scope;
 276         struct mwifiex_ie_types_header *head;
 277         u16 tlv, tlv_buf_len;
 278         u8 *tlv_buf;
 279         u32 i;
 280
 281         tlv_buf = ((u8 *)rate_cfg) +
 282                         sizeof(struct host_cmd_ds_tx_rate_cfg);
 283         tlv_buf_len = le16_to_cpu(*(__le16 *) (tlv_buf + sizeof(u16)));
 284
 285         while (tlv_buf && tlv_buf_len > 0) {
 286                 tlv = (*tlv_buf);
 287                 tlv = tlv | (*(tlv_buf + 1) << 8);
 288
 289                 switch (tlv) {
 290                 case TLV_TYPE_RATE_SCOPE:
 291                         rate_scope = (struct mwifiex_rate_scope *) tlv_buf;
 292                         priv->bitmap_rates[0] =
 293                                 le16_to_cpu(rate_scope->hr_dsss_rate_bitmap);
 294                         priv->bitmap_rates[1] =
 295                                 le16_to_cpu(rate_scope->ofdm_rate_bitmap);
 296                         for (i = 0;
 297                              i <
 298                              sizeof(rate_scope->ht_mcs_rate_bitmap) /
 299                              sizeof(u16); i++)
 300                                 priv->bitmap_rates[2 + i] =
 301                                         le16_to_cpu(rate_scope->
 302                                                     ht_mcs_rate_bitmap[i]);
 303                         break;
 304                         /* Add RATE_DROP tlv here */
 305                 }
 306
 307                 head = (struct mwifiex_ie_types_header *) tlv_buf;
 308                 tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
 309                 tlv_buf_len -= le16_to_cpu(head->len);
 310         }
 311
 312         priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
 313
 314         if (priv->is_data_rate_auto)
 315                 priv->data_rate = 0;
 316         else
 317                 return mwifiex_send_cmd_async(priv,
 318                                               HostCmd_CMD_802_11_TX_RATE_QUERY,
 319                                               HostCmd_ACT_GEN_GET, 0, NULL);
 320
 321         return 0;
 322 }
 323
 324 /*
 325  * This function handles the command response of get Tx power level.
 326  *
 327  * Handling includes saving the maximum and minimum Tx power levels
 328  * in driver, as well as sending the values to user.
 329  */
 330 static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 331 {
 332         int length, max_power = -1, min_power = -1;
 333         struct mwifiex_types_power_group *pg_tlv_hdr;
 334         struct mwifiex_power_group *pg;
 335
 336         if (!data_buf)
 337                 return -1;
 338
 339         pg_tlv_hdr = (struct mwifiex_types_power_group *)
 340                 ((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 341         pg = (struct mwifiex_power_group *)
 342                 ((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
 343         length = pg_tlv_hdr->length;
 344         if (length > 0) {
 345                 max_power = pg->power_max;
 346                 min_power = pg->power_min;
 347                 length -= sizeof(struct mwifiex_power_group);
 348         }
 349         while (length) {
 350                 pg++;
 351                 if (max_power < pg->power_max)
 352                         max_power = pg->power_max;
 353
 354                 if (min_power > pg->power_min)
 355                         min_power = pg->power_min;
 356
 357                 length -= sizeof(struct mwifiex_power_group);
 358         }
 359         if (pg_tlv_hdr->length > 0) {
 360                 priv->min_tx_power_level = (u8) min_power;
 361                 priv->max_tx_power_level = (u8) max_power;
 362         }
 363
 364         return 0;
 365 }
 366
 367 /*
 368  * This function handles the command response of set/get Tx power
 369  * configurations.
 370  *
 371  * Handling includes changing the header fields into CPU format
 372  * and saving the current Tx power level in driver.
 373  */
 374 static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
 375                                     struct host_cmd_ds_command *resp)
 376 {
 377         struct mwifiex_adapter *adapter = priv->adapter;
 378         struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
 379         struct mwifiex_types_power_group *pg_tlv_hdr;
 380         struct mwifiex_power_group *pg;
 381         u16 action = le16_to_cpu(txp_cfg->action);
 382
 383         switch (action) {
 384         case HostCmd_ACT_GEN_GET:
 385                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 386                         ((u8 *) txp_cfg +
 387                          sizeof(struct host_cmd_ds_txpwr_cfg));
 388
 389                 pg = (struct mwifiex_power_group *)
 390                         ((u8 *) pg_tlv_hdr +
 391                          sizeof(struct mwifiex_types_power_group));
 392
 393                 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
 394                         mwifiex_get_power_level(priv, txp_cfg);
 395
 396                 priv->tx_power_level = (u16) pg->power_min;
 397                 break;
 398
 399         case HostCmd_ACT_GEN_SET:
 400                 if (!le32_to_cpu(txp_cfg->mode))
 401                         break;
 402
 403                 pg_tlv_hdr = (struct mwifiex_types_power_group *)
 404                         ((u8 *) txp_cfg +
 405                          sizeof(struct host_cmd_ds_txpwr_cfg));
 406
 407                 pg = (struct mwifiex_power_group *)
 408                         ((u8 *) pg_tlv_hdr +
 409                          sizeof(struct mwifiex_types_power_group));
 410
 411                 if (pg->power_max == pg->power_min)
 412                         priv->tx_power_level = (u16) pg->power_min;
 413                 break;
 414         default:
 415                 dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n",
 416                         action);
 417                 return 0;
 418         }
 419         dev_dbg(adapter->dev,
 420                 "info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
 421                priv->tx_power_level, priv->max_tx_power_level,
 422                priv->min_tx_power_level);
 423
 424         return 0;
 425 }
 426
 427 /*
 428  * This function handles the command response of get RF Tx power.
 429  */
 430 static int mwifiex_ret_rf_tx_power(struct mwifiex_private *priv,
 431                                    struct host_cmd_ds_command *resp)
 432 {
 433         struct host_cmd_ds_rf_tx_pwr *txp = &resp->params.txp;
 434         u16 action = le16_to_cpu(txp->action);
 435
 436         priv->tx_power_level = le16_to_cpu(txp->cur_level);
 437
 438         if (action == HostCmd_ACT_GEN_GET) {
 439                 priv->max_tx_power_level = txp->max_power;
 440                 priv->min_tx_power_level = txp->min_power;
 441         }
 442
 443         dev_dbg(priv->adapter->dev,
 444                 "Current TxPower Level=%d, Max Power=%d, Min Power=%d\n",
 445                 priv->tx_power_level, priv->max_tx_power_level,
 446                 priv->min_tx_power_level);
 447
 448         return 0;
 449 }
 450
 451 /*
 452  * This function handles the command response of set rf antenna
 453  */
 454 static int mwifiex_ret_rf_antenna(struct mwifiex_private *priv,
 455                                   struct host_cmd_ds_command *resp)
 456 {
 457         struct host_cmd_ds_rf_ant_mimo *ant_mimo = &resp->params.ant_mimo;
 458         struct host_cmd_ds_rf_ant_siso *ant_siso = &resp->params.ant_siso;
 459         struct mwifiex_adapter *adapter = priv->adapter;
 460
 461         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
 462                 dev_dbg(adapter->dev,
 463                         "RF_ANT_RESP: Tx action = 0x%x, Tx Mode = 0x%04x"
 464                         " Rx action = 0x%x, Rx Mode = 0x%04x\n",
 465                         le16_to_cpu(ant_mimo->action_tx),
 466                         le16_to_cpu(ant_mimo->tx_ant_mode),
 467                         le16_to_cpu(ant_mimo->action_rx),
 468                         le16_to_cpu(ant_mimo->rx_ant_mode));
 469         else
 470                 dev_dbg(adapter->dev,
 471                         "RF_ANT_RESP: action = 0x%x, Mode = 0x%04x\n",
 472                         le16_to_cpu(ant_siso->action),
 473                         le16_to_cpu(ant_siso->ant_mode));
 474
 475         return 0;
 476 }
 477
 478 /*
 479  * This function handles the command response of set/get MAC address.
 480  *
 481  * Handling includes saving the MAC address in driver.
 482  */
 483 static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv,
 484                                           struct host_cmd_ds_command *resp)
 485 {
 486         struct host_cmd_ds_802_11_mac_address *cmd_mac_addr =
 487                                                         &resp->params.mac_addr;
 488
 489         memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN);
 490
 491         dev_dbg(priv->adapter->dev,
 492                 "info: set mac address: %pM\n", priv->curr_addr);
 493
 494         return 0;
 495 }
 496
 497 /*
 498  * This function handles the command response of set/get MAC multicast
 499  * address.
 500  */
 501 static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv,
 502                                          struct host_cmd_ds_command *resp)
 503 {
 504         return 0;
 505 }
 506
 507 /*
 508  * This function handles the command response of get Tx rate query.
 509  *
 510  * Handling includes changing the header fields into CPU format
 511  * and saving the Tx rate and HT information parameters in driver.
 512  *
 513  * Both rate configuration and current data rate can be retrieved
 514  * with this request.
 515  */
 516 static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv,
 517                                             struct host_cmd_ds_command *resp)
 518 {
 519         priv->tx_rate = resp->params.tx_rate.tx_rate;
 520         priv->tx_htinfo = resp->params.tx_rate.ht_info;
 521         if (!priv->is_data_rate_auto)
 522                 priv->data_rate =
 523                         mwifiex_index_to_data_rate(priv, priv->tx_rate,
 524                                                    priv->tx_htinfo);
 525
 526         return 0;
 527 }
 528
 529 /*
 530  * This function handles the command response of a deauthenticate
 531  * command.
 532  *
 533  * If the deauthenticated MAC matches the current BSS MAC, the connection
 534  * state is reset.
 535  */
 536 static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv,
 537                                              struct host_cmd_ds_command *resp)
 538 {
 539         struct mwifiex_adapter *adapter = priv->adapter;
 540
 541         adapter->dbg.num_cmd_deauth++;
 542         if (!memcmp(resp->params.deauth.mac_addr,
 543                     &priv->curr_bss_params.bss_descriptor.mac_address,
 544                     sizeof(resp->params.deauth.mac_addr)))
 545                 mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 546
 547         return 0;
 548 }
 549
 550 /*
 551  * This function handles the command response of ad-hoc stop.
 552  *
 553  * The function resets the connection state in driver.
 554  */
 555 static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv,
 556                                           struct host_cmd_ds_command *resp)
 557 {
 558         mwifiex_reset_connect_state(priv, WLAN_REASON_DEAUTH_LEAVING);
 559         return 0;
 560 }
 561
 562 /*
 563  * This function handles the command response of set/get key material.
 564  *
 565  * Handling includes updating the driver parameters to reflect the
 566  * changes.
 567  */
 568 static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv,
 569                                            struct host_cmd_ds_command *resp)
 570 {
 571         struct host_cmd_ds_802_11_key_material *key =
 572                                                 &resp->params.key_material;
 573
 574         if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) {
 575                 if ((le16_to_cpu(key->key_param_set.key_info) & KEY_MCAST)) {
 576                         dev_dbg(priv->adapter->dev, "info: key: GTK is set\n");
 577                         priv->wpa_is_gtk_set = true;
 578                         priv->scan_block = false;
 579                 }
 580         }
 581
 582         memset(priv->aes_key.key_param_set.key, 0,
 583                sizeof(key->key_param_set.key));
 584         priv->aes_key.key_param_set.key_len = key->key_param_set.key_len;
 585         memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key,
 586                le16_to_cpu(priv->aes_key.key_param_set.key_len));
 587
 588         return 0;
 589 }
 590
 591 /*
 592  * This function handles the command response of get 11d domain information.
 593  */
 594 static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv,
 595                                            struct host_cmd_ds_command *resp)
 596 {
 597         struct host_cmd_ds_802_11d_domain_info_rsp *domain_info =
 598                 &resp->params.domain_info_resp;
 599         struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain;
 600         u16 action = le16_to_cpu(domain_info->action);
 601         u8 no_of_triplet;
 602
 603         no_of_triplet = (u8) ((le16_to_cpu(domain->header.len)
 604                                 - IEEE80211_COUNTRY_STRING_LEN)
 605                               / sizeof(struct ieee80211_country_ie_triplet));
 606
 607         dev_dbg(priv->adapter->dev,
 608                 "info: 11D Domain Info Resp: no_of_triplet=%d\n",
 609                 no_of_triplet);
 610
 611         if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) {
 612                 dev_warn(priv->adapter->dev,
 613                          "11D: invalid number of triplets %d returned\n",
 614                          no_of_triplet);
 615                 return -1;
 616         }
 617
 618         switch (action) {
 619         case HostCmd_ACT_GEN_SET:  /* Proc Set Action */
 620                 break;
 621         case HostCmd_ACT_GEN_GET:
 622                 break;
 623         default:
 624                 dev_err(priv->adapter->dev,
 625                         "11D: invalid action:%d\n", domain_info->action);
 626                 return -1;
 627         }
 628
 629         return 0;
 630 }
 631
 632 /*
 633  * This function handles the command response of get extended version.
 634  *
 635  * Handling includes forming the extended version string and sending it
 636  * to application.
 637  */
 638 static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 639                                struct host_cmd_ds_command *resp,
 640                                struct host_cmd_ds_version_ext *version_ext)
 641 {
 642         struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
 643
 644         if (version_ext) {
 645                 version_ext->version_str_sel = ver_ext->version_str_sel;
 646                 memcpy(version_ext->version_str, ver_ext->version_str,
 647                        sizeof(char) * 128);
 648                 memcpy(priv->version_str, ver_ext->version_str, 128);
 649         }
 650         return 0;
 651 }
 652
 653 /*
 654  * This function handles the command response of remain on channel.
 655  */
 656 static int
 657 mwifiex_ret_remain_on_chan(struct mwifiex_private *priv,
 658                            struct host_cmd_ds_command *resp,
 659                            struct host_cmd_ds_remain_on_chan *roc_cfg)
 660 {
 661         struct host_cmd_ds_remain_on_chan *resp_cfg = &resp->params.roc_cfg;
 662
 663         if (roc_cfg)
 664                 memcpy(roc_cfg, resp_cfg, sizeof(*roc_cfg));
 665
 666         return 0;
 667 }
 668
 669 /*
 670  * This function handles the command response of P2P mode cfg.
 671  */
 672 static int
 673 mwifiex_ret_p2p_mode_cfg(struct mwifiex_private *priv,
 674                          struct host_cmd_ds_command *resp,
 675                          void *data_buf)
 676 {
 677         struct host_cmd_ds_p2p_mode_cfg *mode_cfg = &resp->params.mode_cfg;
 678
 679         if (data_buf)
 680                 *((u16 *)data_buf) = le16_to_cpu(mode_cfg->mode);
 681
 682         return 0;
 683 }
 684
 685 /*
 686  * This function handles the command response of register access.
 687  *
 688  * The register value and offset are returned to the user. For EEPROM
 689  * access, the byte count is also returned.
 690  */
 691 static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp,
 692                                   void *data_buf)
 693 {
 694         struct mwifiex_ds_reg_rw *reg_rw;
 695         struct mwifiex_ds_read_eeprom *eeprom;
 696         union reg {
 697                 struct host_cmd_ds_mac_reg_access *mac;
 698                 struct host_cmd_ds_bbp_reg_access *bbp;
 699                 struct host_cmd_ds_rf_reg_access *rf;
 700                 struct host_cmd_ds_pmic_reg_access *pmic;
 701                 struct host_cmd_ds_802_11_eeprom_access *eeprom;
 702         } r;
 703
 704         if (!data_buf)
 705                 return 0;
 706
 707         reg_rw = data_buf;
 708         eeprom = data_buf;
 709         switch (type) {
 710         case HostCmd_CMD_MAC_REG_ACCESS:
 711                 r.mac = &resp->params.mac_reg;
 712                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.mac->offset));
 713                 reg_rw->value = r.mac->value;
 714                 break;
 715         case HostCmd_CMD_BBP_REG_ACCESS:
 716                 r.bbp = &resp->params.bbp_reg;
 717                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.bbp->offset));
 718                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 719                 break;
 720
 721         case HostCmd_CMD_RF_REG_ACCESS:
 722                 r.rf = &resp->params.rf_reg;
 723                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 724                 reg_rw->value = cpu_to_le32((u32) r.bbp->value);
 725                 break;
 726         case HostCmd_CMD_PMIC_REG_ACCESS:
 727                 r.pmic = &resp->params.pmic_reg;
 728                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.pmic->offset));
 729                 reg_rw->value = cpu_to_le32((u32) r.pmic->value);
 730                 break;
 731         case HostCmd_CMD_CAU_REG_ACCESS:
 732                 r.rf = &resp->params.rf_reg;
 733                 reg_rw->offset = cpu_to_le32((u32) le16_to_cpu(r.rf->offset));
 734                 reg_rw->value = cpu_to_le32((u32) r.rf->value);
 735                 break;
 736         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 737                 r.eeprom = &resp->params.eeprom;
 738                 pr_debug("info: EEPROM read len=%x\n", r.eeprom->byte_count);
 739                 if (le16_to_cpu(eeprom->byte_count) <
 740                     le16_to_cpu(r.eeprom->byte_count)) {
 741                         eeprom->byte_count = cpu_to_le16(0);
 742                         pr_debug("info: EEPROM read length is too big\n");
 743                         return -1;
 744                 }
 745                 eeprom->offset = r.eeprom->offset;
 746                 eeprom->byte_count = r.eeprom->byte_count;
 747                 if (le16_to_cpu(eeprom->byte_count) > 0)
 748                         memcpy(&eeprom->value, &r.eeprom->value,
 749                                le16_to_cpu(r.eeprom->byte_count));
 750
 751                 break;
 752         default:
 753                 return -1;
 754         }
 755         return 0;
 756 }
 757
 758 /*
 759  * This function handles the command response of get IBSS coalescing status.
 760  *
 761  * If the received BSSID is different than the current one, the current BSSID,
 762  * beacon interval, ATIM window and ERP information are updated, along with
 763  * changing the ad-hoc state accordingly.
 764  */
 765 static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 766                                               struct host_cmd_ds_command *resp)
 767 {
 768         struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
 769                                         &(resp->params.ibss_coalescing);
 770
 771         if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
 772                 return 0;
 773
 774         dev_dbg(priv->adapter->dev,
 775                 "info: new BSSID %pM\n", ibss_coal_resp->bssid);
 776
 777         /* If rsp has NULL BSSID, Just return..... No Action */
 778         if (is_zero_ether_addr(ibss_coal_resp->bssid)) {
 779                 dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
 780                 return 0;
 781         }
 782
 783         /* If BSSID is diff, modify current BSS parameters */
 784         if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
 785                    ibss_coal_resp->bssid, ETH_ALEN)) {
 786                 /* BSSID */
 787                 memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
 788                        ibss_coal_resp->bssid, ETH_ALEN);
 789
 790                 /* Beacon Interval */
 791                 priv->curr_bss_params.bss_descriptor.beacon_period
 792                         = le16_to_cpu(ibss_coal_resp->beacon_interval);
 793
 794                 /* ERP Information */
 795                 priv->curr_bss_params.bss_descriptor.erp_flags =
 796                         (u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect);
 797
 798                 priv->adhoc_state = ADHOC_COALESCED;
 799         }
 800
 801         return 0;
 802 }
 803
 804 /*
 805  * This function handles the command response for subscribe event command.
 806  */
 807 static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
 808                                  struct host_cmd_ds_command *resp)
 809 {
 810         struct host_cmd_ds_802_11_subsc_evt *cmd_sub_event =
 811                 &resp->params.subsc_evt;
 812
 813         /* For every subscribe event command (Get/Set/Clear), FW reports the
 814          * current set of subscribed events*/
 815         dev_dbg(priv->adapter->dev, "Bitmap of currently subscribed events: %16x\n",
 816                 le16_to_cpu(cmd_sub_event->events));
 817
 818         return 0;
 819 }
 820
 821 /* This function handles the command response of set_cfg_data */
 822 static int mwifiex_ret_cfg_data(struct mwifiex_private *priv,
 823                                 struct host_cmd_ds_command *resp)
 824 {
 825         if (resp->result != HostCmd_RESULT_OK) {
 826                 dev_err(priv->adapter->dev, "Cal data cmd resp failed\n");
 827                 return -1;
 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, u16 cmdresp_no,
 840                                 struct host_cmd_ds_command *resp)
 841 {
 842         int ret = 0;
 843         struct mwifiex_adapter *adapter = priv->adapter;
 844         void *data_buf = adapter->curr_cmd->data_buf;
 845
 846         /* If the command is not successful, cleanup and return failure */
 847         if (resp->result != HostCmd_RESULT_OK) {
 848                 mwifiex_process_cmdresp_error(priv, resp);
 849                 return -1;
 850         }
 851         /* Command successful, handle response */
 852         switch (cmdresp_no) {
 853         case HostCmd_CMD_GET_HW_SPEC:
 854                 ret = mwifiex_ret_get_hw_spec(priv, resp);
 855                 break;
 856         case HostCmd_CMD_CFG_DATA:
 857                 ret = mwifiex_ret_cfg_data(priv, resp);
 858                 break;
 859         case HostCmd_CMD_MAC_CONTROL:
 860                 break;
 861         case HostCmd_CMD_802_11_MAC_ADDRESS:
 862                 ret = mwifiex_ret_802_11_mac_address(priv, resp);
 863                 break;
 864         case HostCmd_CMD_MAC_MULTICAST_ADR:
 865                 ret = mwifiex_ret_mac_multicast_adr(priv, resp);
 866                 break;
 867         case HostCmd_CMD_TX_RATE_CFG:
 868                 ret = mwifiex_ret_tx_rate_cfg(priv, resp);
 869                 break;
 870         case HostCmd_CMD_802_11_SCAN:
 871                 ret = mwifiex_ret_802_11_scan(priv, resp);
 872                 adapter->curr_cmd->wait_q_enabled = false;
 873                 break;
 874         case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 875                 ret = mwifiex_ret_802_11_scan(priv, resp);
 876                 dev_dbg(adapter->dev,
 877                         "info: CMD_RESP: BG_SCAN result is ready!\n");
 878                 break;
 879         case HostCmd_CMD_TXPWR_CFG:
 880                 ret = mwifiex_ret_tx_power_cfg(priv, resp);
 881                 break;
 882         case HostCmd_CMD_RF_TX_PWR:
 883                 ret = mwifiex_ret_rf_tx_power(priv, resp);
 884                 break;
 885         case HostCmd_CMD_RF_ANTENNA:
 886                 ret = mwifiex_ret_rf_antenna(priv, resp);
 887                 break;
 888         case HostCmd_CMD_802_11_PS_MODE_ENH:
 889                 ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf);
 890                 break;
 891         case HostCmd_CMD_802_11_HS_CFG_ENH:
 892                 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
 893                 break;
 894         case HostCmd_CMD_802_11_ASSOCIATE:
 895                 ret = mwifiex_ret_802_11_associate(priv, resp);
 896                 break;
 897         case HostCmd_CMD_802_11_DEAUTHENTICATE:
 898                 ret = mwifiex_ret_802_11_deauthenticate(priv, resp);
 899                 break;
 900         case HostCmd_CMD_802_11_AD_HOC_START:
 901         case HostCmd_CMD_802_11_AD_HOC_JOIN:
 902                 ret = mwifiex_ret_802_11_ad_hoc(priv, resp);
 903                 break;
 904         case HostCmd_CMD_802_11_AD_HOC_STOP:
 905                 ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp);
 906                 break;
 907         case HostCmd_CMD_802_11_GET_LOG:
 908                 ret = mwifiex_ret_get_log(priv, resp, data_buf);
 909                 break;
 910         case HostCmd_CMD_RSSI_INFO:
 911                 ret = mwifiex_ret_802_11_rssi_info(priv, resp);
 912                 break;
 913         case HostCmd_CMD_802_11_SNMP_MIB:
 914                 ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf);
 915                 break;
 916         case HostCmd_CMD_802_11_TX_RATE_QUERY:
 917                 ret = mwifiex_ret_802_11_tx_rate_query(priv, resp);
 918                 break;
 919         case HostCmd_CMD_VERSION_EXT:
 920                 ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
 921                 break;
 922         case HostCmd_CMD_REMAIN_ON_CHAN:
 923                 ret = mwifiex_ret_remain_on_chan(priv, resp, data_buf);
 924                 break;
 925         case HostCmd_CMD_11AC_CFG:
 926                 break;
 927         case HostCmd_CMD_P2P_MODE_CFG:
 928                 ret = mwifiex_ret_p2p_mode_cfg(priv, resp, data_buf);
 929                 break;
 930         case HostCmd_CMD_MGMT_FRAME_REG:
 931         case HostCmd_CMD_FUNC_INIT:
 932         case HostCmd_CMD_FUNC_SHUTDOWN:
 933                 break;
 934         case HostCmd_CMD_802_11_KEY_MATERIAL:
 935                 ret = mwifiex_ret_802_11_key_material(priv, resp);
 936                 break;
 937         case HostCmd_CMD_802_11D_DOMAIN_INFO:
 938                 ret = mwifiex_ret_802_11d_domain_info(priv, resp);
 939                 break;
 940         case HostCmd_CMD_11N_ADDBA_REQ:
 941                 ret = mwifiex_ret_11n_addba_req(priv, resp);
 942                 break;
 943         case HostCmd_CMD_11N_DELBA:
 944                 ret = mwifiex_ret_11n_delba(priv, resp);
 945                 break;
 946         case HostCmd_CMD_11N_ADDBA_RSP:
 947                 ret = mwifiex_ret_11n_addba_resp(priv, resp);
 948                 break;
 949         case HostCmd_CMD_RECONFIGURE_TX_BUFF:
 950                 adapter->tx_buf_size = (u16) le16_to_cpu(resp->params.
 951                                                              tx_buf.buff_size);
 952                 adapter->tx_buf_size = (adapter->tx_buf_size
 953                                         / MWIFIEX_SDIO_BLOCK_SIZE)
 954                                        * MWIFIEX_SDIO_BLOCK_SIZE;
 955                 adapter->curr_tx_buf_size = adapter->tx_buf_size;
 956                 dev_dbg(adapter->dev, "cmd: curr_tx_buf_size=%d\n",
 957                         adapter->curr_tx_buf_size);
 958
 959                 if (adapter->if_ops.update_mp_end_port)
 960                         adapter->if_ops.update_mp_end_port(adapter,
 961                                 le16_to_cpu(resp->params.tx_buf.mp_end_port));
 962                 break;
 963         case HostCmd_CMD_AMSDU_AGGR_CTRL:
 964                 break;
 965         case HostCmd_CMD_WMM_GET_STATUS:
 966                 ret = mwifiex_ret_wmm_get_status(priv, resp);
 967                 break;
 968         case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS:
 969                 ret = mwifiex_ret_ibss_coalescing_status(priv, resp);
 970                 break;
 971         case HostCmd_CMD_MAC_REG_ACCESS:
 972         case HostCmd_CMD_BBP_REG_ACCESS:
 973         case HostCmd_CMD_RF_REG_ACCESS:
 974         case HostCmd_CMD_PMIC_REG_ACCESS:
 975         case HostCmd_CMD_CAU_REG_ACCESS:
 976         case HostCmd_CMD_802_11_EEPROM_ACCESS:
 977                 ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf);
 978                 break;
 979         case HostCmd_CMD_SET_BSS_MODE:
 980                 break;
 981         case HostCmd_CMD_11N_CFG:
 982                 break;
 983         case HostCmd_CMD_PCIE_DESC_DETAILS:
 984                 break;
 985         case HostCmd_CMD_802_11_SUBSCRIBE_EVENT:
 986                 ret = mwifiex_ret_subsc_evt(priv, resp);
 987                 break;
 988         case HostCmd_CMD_UAP_SYS_CONFIG:
 989                 break;
 990         case HostCmd_CMD_UAP_BSS_START:
 991                 priv->bss_started = 1;
 992                 break;
 993         case HostCmd_CMD_UAP_BSS_STOP:
 994                 priv->bss_started = 0;
 995                 break;
 996         case HostCmd_CMD_UAP_STA_DEAUTH:
 997                 break;
 998         case HostCmd_CMD_MEF_CFG:
 999                 break;
1000         case HostCmd_CMD_COALESCE_CFG:
1001                 break;
1002         default:
1003                 dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n",
1004                         resp->command);
1005                 break;
1006         }
1007
1008         return ret;
1009 }