/drivers/net/wireless/mwifiex/sta_cmdresp.c
C | 962 lines | 697 code | 89 blank | 176 comment | 62 complexity | 5860b9340b07d7652e9259283d48ce76 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
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 */ 42static void 43mwifiex_process_cmdresp_error(struct mwifiex_private *priv, 44 struct host_cmd_ds_command *resp) 45{ 46 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node; 47 struct mwifiex_adapter *adapter = priv->adapter; 48 struct host_cmd_ds_802_11_ps_mode_enh *pm; 49 unsigned long flags; 50 51 dev_err(adapter->dev, "CMD_RESP: cmd %#x error, result=%#x\n", 52 resp->command, resp->result); 53 54 if (adapter->curr_cmd->wait_q_enabled) 55 adapter->cmd_wait_q.status = -1; 56 57 switch (le16_to_cpu(resp->command)) { 58 case HostCmd_CMD_802_11_PS_MODE_ENH: 59 pm = &resp->params.psmode_enh; 60 dev_err(adapter->dev, "PS_MODE_ENH cmd failed: " 61 "result=0x%x action=0x%X\n", 62 resp->result, le16_to_cpu(pm->action)); 63 /* We do not re-try enter-ps command in ad-hoc mode. */ 64 if (le16_to_cpu(pm->action) == EN_AUTO_PS && 65 (le16_to_cpu(pm->params.ps_bitmap) & BITMAP_STA_PS) && 66 priv->bss_mode == NL80211_IFTYPE_ADHOC) 67 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; 68 69 break; 70 case HostCmd_CMD_802_11_SCAN: 71 /* Cancel all pending scan command */ 72 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); 73 list_for_each_entry_safe(cmd_node, tmp_node, 74 &adapter->scan_pending_q, list) { 75 list_del(&cmd_node->list); 76 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, 77 flags); 78 mwifiex_insert_cmd_to_free_q(adapter, cmd_node); 79 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); 80 } 81 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); 82 83 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 84 adapter->scan_processing = false; 85 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 86 if (priv->report_scan_result) 87 priv->report_scan_result = false; 88 if (priv->scan_pending_on_block) { 89 priv->scan_pending_on_block = false; 90 up(&priv->async_sem); 91 } 92 break; 93 94 case HostCmd_CMD_MAC_CONTROL: 95 break; 96 97 default: 98 break; 99 } 100 /* Handling errors here */ 101 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); 102 103 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); 104 adapter->curr_cmd = NULL; 105 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); 106} 107 108/* 109 * This function handles the command response of get RSSI info. 110 * 111 * Handling includes changing the header fields into CPU format 112 * and saving the following parameters in driver - 113 * - Last data and beacon RSSI value 114 * - Average data and beacon RSSI value 115 * - Last data and beacon NF value 116 * - Average data and beacon NF value 117 * 118 * The parameters are send to the application as well, along with 119 * calculated SNR values. 120 */ 121static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv, 122 struct host_cmd_ds_command *resp, 123 struct mwifiex_ds_get_signal *signal) 124{ 125 struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp = 126 &resp->params.rssi_info_rsp; 127 128 priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last); 129 priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last); 130 131 priv->data_rssi_avg = le16_to_cpu(rssi_info_rsp->data_rssi_avg); 132 priv->data_nf_avg = le16_to_cpu(rssi_info_rsp->data_nf_avg); 133 134 priv->bcn_rssi_last = le16_to_cpu(rssi_info_rsp->bcn_rssi_last); 135 priv->bcn_nf_last = le16_to_cpu(rssi_info_rsp->bcn_nf_last); 136 137 priv->bcn_rssi_avg = le16_to_cpu(rssi_info_rsp->bcn_rssi_avg); 138 priv->bcn_nf_avg = le16_to_cpu(rssi_info_rsp->bcn_nf_avg); 139 140 /* Need to indicate IOCTL complete */ 141 if (signal) { 142 memset(signal, 0, sizeof(*signal)); 143 144 signal->selector = ALL_RSSI_INFO_MASK; 145 146 /* RSSI */ 147 signal->bcn_rssi_last = priv->bcn_rssi_last; 148 signal->bcn_rssi_avg = priv->bcn_rssi_avg; 149 signal->data_rssi_last = priv->data_rssi_last; 150 signal->data_rssi_avg = priv->data_rssi_avg; 151 152 /* SNR */ 153 signal->bcn_snr_last = 154 CAL_SNR(priv->bcn_rssi_last, priv->bcn_nf_last); 155 signal->bcn_snr_avg = 156 CAL_SNR(priv->bcn_rssi_avg, priv->bcn_nf_avg); 157 signal->data_snr_last = 158 CAL_SNR(priv->data_rssi_last, priv->data_nf_last); 159 signal->data_snr_avg = 160 CAL_SNR(priv->data_rssi_avg, priv->data_nf_avg); 161 162 /* NF */ 163 signal->bcn_nf_last = priv->bcn_nf_last; 164 signal->bcn_nf_avg = priv->bcn_nf_avg; 165 signal->data_nf_last = priv->data_nf_last; 166 signal->data_nf_avg = priv->data_nf_avg; 167 } 168 169 return 0; 170} 171 172/* 173 * This function handles the command response of set/get SNMP 174 * MIB parameters. 175 * 176 * Handling includes changing the header fields into CPU format 177 * and saving the parameter in driver. 178 * 179 * The following parameters are supported - 180 * - Fragmentation threshold 181 * - RTS threshold 182 * - Short retry limit 183 */ 184static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv, 185 struct host_cmd_ds_command *resp, 186 u32 *data_buf) 187{ 188 struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib; 189 u16 oid = le16_to_cpu(smib->oid); 190 u16 query_type = le16_to_cpu(smib->query_type); 191 u32 ul_temp; 192 193 dev_dbg(priv->adapter->dev, "info: SNMP_RESP: oid value = %#x," 194 " query_type = %#x, buf size = %#x\n", 195 oid, query_type, le16_to_cpu(smib->buf_size)); 196 if (query_type == HostCmd_ACT_GEN_GET) { 197 ul_temp = le16_to_cpu(*((__le16 *) (smib->value))); 198 if (data_buf) 199 *data_buf = ul_temp; 200 switch (oid) { 201 case FRAG_THRESH_I: 202 dev_dbg(priv->adapter->dev, 203 "info: SNMP_RESP: FragThsd =%u\n", ul_temp); 204 break; 205 case RTS_THRESH_I: 206 dev_dbg(priv->adapter->dev, 207 "info: SNMP_RESP: RTSThsd =%u\n", ul_temp); 208 break; 209 case SHORT_RETRY_LIM_I: 210 dev_dbg(priv->adapter->dev, 211 "info: SNMP_RESP: TxRetryCount=%u\n", ul_temp); 212 break; 213 default: 214 break; 215 } 216 } 217 218 return 0; 219} 220 221/* 222 * This function handles the command response of get log request 223 * 224 * Handling includes changing the header fields into CPU format 225 * and sending the received parameters to application. 226 */ 227static int mwifiex_ret_get_log(struct mwifiex_private *priv, 228 struct host_cmd_ds_command *resp, 229 struct mwifiex_ds_get_stats *stats) 230{ 231 struct host_cmd_ds_802_11_get_log *get_log = 232 (struct host_cmd_ds_802_11_get_log *) &resp->params.get_log; 233 234 if (stats) { 235 stats->mcast_tx_frame = le32_to_cpu(get_log->mcast_tx_frame); 236 stats->failed = le32_to_cpu(get_log->failed); 237 stats->retry = le32_to_cpu(get_log->retry); 238 stats->multi_retry = le32_to_cpu(get_log->multi_retry); 239 stats->frame_dup = le32_to_cpu(get_log->frame_dup); 240 stats->rts_success = le32_to_cpu(get_log->rts_success); 241 stats->rts_failure = le32_to_cpu(get_log->rts_failure); 242 stats->ack_failure = le32_to_cpu(get_log->ack_failure); 243 stats->rx_frag = le32_to_cpu(get_log->rx_frag); 244 stats->mcast_rx_frame = le32_to_cpu(get_log->mcast_rx_frame); 245 stats->fcs_error = le32_to_cpu(get_log->fcs_error); 246 stats->tx_frame = le32_to_cpu(get_log->tx_frame); 247 stats->wep_icv_error[0] = 248 le32_to_cpu(get_log->wep_icv_err_cnt[0]); 249 stats->wep_icv_error[1] = 250 le32_to_cpu(get_log->wep_icv_err_cnt[1]); 251 stats->wep_icv_error[2] = 252 le32_to_cpu(get_log->wep_icv_err_cnt[2]); 253 stats->wep_icv_error[3] = 254 le32_to_cpu(get_log->wep_icv_err_cnt[3]); 255 } 256 257 return 0; 258} 259 260/* 261 * This function handles the command response of set/get Tx rate 262 * configurations. 263 * 264 * Handling includes changing the header fields into CPU format 265 * and saving the following parameters in driver - 266 * - DSSS rate bitmap 267 * - OFDM rate bitmap 268 * - HT MCS rate bitmaps 269 * 270 * Based on the new rate bitmaps, the function re-evaluates if 271 * auto data rate has been activated. If not, it sends another 272 * query to the firmware to get the current Tx data rate and updates 273 * the driver value. 274 */ 275static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv, 276 struct host_cmd_ds_command *resp, 277 struct mwifiex_rate_cfg *ds_rate) 278{ 279 struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg; 280 struct mwifiex_rate_scope *rate_scope; 281 struct mwifiex_ie_types_header *head; 282 u16 tlv, tlv_buf_len; 283 u8 *tlv_buf; 284 u32 i; 285 int ret = 0; 286 287 tlv_buf = (u8 *) ((u8 *) rate_cfg) + 288 sizeof(struct host_cmd_ds_tx_rate_cfg); 289 tlv_buf_len = *(u16 *) (tlv_buf + sizeof(u16)); 290 291 while (tlv_buf && tlv_buf_len > 0) { 292 tlv = (*tlv_buf); 293 tlv = tlv | (*(tlv_buf + 1) << 8); 294 295 switch (tlv) { 296 case TLV_TYPE_RATE_SCOPE: 297 rate_scope = (struct mwifiex_rate_scope *) tlv_buf; 298 priv->bitmap_rates[0] = 299 le16_to_cpu(rate_scope->hr_dsss_rate_bitmap); 300 priv->bitmap_rates[1] = 301 le16_to_cpu(rate_scope->ofdm_rate_bitmap); 302 for (i = 0; 303 i < 304 sizeof(rate_scope->ht_mcs_rate_bitmap) / 305 sizeof(u16); i++) 306 priv->bitmap_rates[2 + i] = 307 le16_to_cpu(rate_scope-> 308 ht_mcs_rate_bitmap[i]); 309 break; 310 /* Add RATE_DROP tlv here */ 311 } 312 313 head = (struct mwifiex_ie_types_header *) tlv_buf; 314 tlv_buf += le16_to_cpu(head->len) + sizeof(*head); 315 tlv_buf_len -= le16_to_cpu(head->len); 316 } 317 318 priv->is_data_rate_auto = mwifiex_is_rate_auto(priv); 319 320 if (priv->is_data_rate_auto) 321 priv->data_rate = 0; 322 else 323 ret = mwifiex_send_cmd_async(priv, 324 HostCmd_CMD_802_11_TX_RATE_QUERY, 325 HostCmd_ACT_GEN_GET, 0, NULL); 326 327 if (ds_rate) { 328 if (le16_to_cpu(rate_cfg->action) == HostCmd_ACT_GEN_GET) { 329 if (priv->is_data_rate_auto) { 330 ds_rate->is_rate_auto = 1; 331 } else { 332 ds_rate->rate = mwifiex_get_rate_index(priv-> 333 bitmap_rates, 334 sizeof(priv-> 335 bitmap_rates)); 336 if (ds_rate->rate >= 337 MWIFIEX_RATE_BITMAP_OFDM0 338 && ds_rate->rate <= 339 MWIFIEX_RATE_BITMAP_OFDM7) 340 ds_rate->rate -= 341 (MWIFIEX_RATE_BITMAP_OFDM0 - 342 MWIFIEX_RATE_INDEX_OFDM0); 343 if (ds_rate->rate >= 344 MWIFIEX_RATE_BITMAP_MCS0 345 && ds_rate->rate <= 346 MWIFIEX_RATE_BITMAP_MCS127) 347 ds_rate->rate -= 348 (MWIFIEX_RATE_BITMAP_MCS0 - 349 MWIFIEX_RATE_INDEX_MCS0); 350 } 351 } 352 } 353 354 return ret; 355} 356 357/* 358 * This function handles the command response of get Tx power level. 359 * 360 * Handling includes saving the maximum and minimum Tx power levels 361 * in driver, as well as sending the values to user. 362 */ 363static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf) 364{ 365 int length, max_power = -1, min_power = -1; 366 struct mwifiex_types_power_group *pg_tlv_hdr; 367 struct mwifiex_power_group *pg; 368 369 if (data_buf) { 370 pg_tlv_hdr = 371 (struct mwifiex_types_power_group *) ((u8 *) data_buf 372 + sizeof(struct host_cmd_ds_txpwr_cfg)); 373 pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr + 374 sizeof(struct mwifiex_types_power_group)); 375 length = pg_tlv_hdr->length; 376 if (length > 0) { 377 max_power = pg->power_max; 378 min_power = pg->power_min; 379 length -= sizeof(struct mwifiex_power_group); 380 } 381 while (length) { 382 pg++; 383 if (max_power < pg->power_max) 384 max_power = pg->power_max; 385 386 if (min_power > pg->power_min) 387 min_power = pg->power_min; 388 389 length -= sizeof(struct mwifiex_power_group); 390 } 391 if (pg_tlv_hdr->length > 0) { 392 priv->min_tx_power_level = (u8) min_power; 393 priv->max_tx_power_level = (u8) max_power; 394 } 395 } else { 396 return -1; 397 } 398 399 return 0; 400} 401 402/* 403 * This function handles the command response of set/get Tx power 404 * configurations. 405 * 406 * Handling includes changing the header fields into CPU format 407 * and saving the current Tx power level in driver. 408 */ 409static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv, 410 struct host_cmd_ds_command *resp) 411{ 412 struct mwifiex_adapter *adapter = priv->adapter; 413 struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg; 414 struct mwifiex_types_power_group *pg_tlv_hdr; 415 struct mwifiex_power_group *pg; 416 u16 action = le16_to_cpu(txp_cfg->action); 417 418 switch (action) { 419 case HostCmd_ACT_GEN_GET: 420 { 421 pg_tlv_hdr = 422 (struct mwifiex_types_power_group *) ((u8 *) 423 txp_cfg + 424 sizeof 425 (struct 426 host_cmd_ds_txpwr_cfg)); 427 pg = (struct mwifiex_power_group *) ((u8 *) 428 pg_tlv_hdr + 429 sizeof(struct 430 mwifiex_types_power_group)); 431 if (adapter->hw_status == 432 MWIFIEX_HW_STATUS_INITIALIZING) 433 mwifiex_get_power_level(priv, txp_cfg); 434 priv->tx_power_level = (u16) pg->power_min; 435 break; 436 } 437 case HostCmd_ACT_GEN_SET: 438 if (le32_to_cpu(txp_cfg->mode)) { 439 pg_tlv_hdr = 440 (struct mwifiex_types_power_group *) ((u8 *) 441 txp_cfg + 442 sizeof 443 (struct 444 host_cmd_ds_txpwr_cfg)); 445 pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr 446 + 447 sizeof(struct 448 mwifiex_types_power_group)); 449 if (pg->power_max == pg->power_min) 450 priv->tx_power_level = (u16) pg->power_min; 451 } 452 break; 453 default: 454 dev_err(adapter->dev, "CMD_RESP: unknown cmd action %d\n", 455 action); 456 return 0; 457 } 458 dev_dbg(adapter->dev, 459 "info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n", 460 priv->tx_power_level, priv->max_tx_power_level, 461 priv->min_tx_power_level); 462 463 return 0; 464} 465 466/* 467 * This function handles the command response of set/get MAC address. 468 * 469 * Handling includes saving the MAC address in driver. 470 */ 471static int mwifiex_ret_802_11_mac_address(struct mwifiex_private *priv, 472 struct host_cmd_ds_command *resp) 473{ 474 struct host_cmd_ds_802_11_mac_address *cmd_mac_addr = 475 &resp->params.mac_addr; 476 477 memcpy(priv->curr_addr, cmd_mac_addr->mac_addr, ETH_ALEN); 478 479 dev_dbg(priv->adapter->dev, 480 "info: set mac address: %pM\n", priv->curr_addr); 481 482 return 0; 483} 484 485/* 486 * This function handles the command response of set/get MAC multicast 487 * address. 488 */ 489static int mwifiex_ret_mac_multicast_adr(struct mwifiex_private *priv, 490 struct host_cmd_ds_command *resp) 491{ 492 return 0; 493} 494 495/* 496 * This function handles the command response of get Tx rate query. 497 * 498 * Handling includes changing the header fields into CPU format 499 * and saving the Tx rate and HT information parameters in driver. 500 * 501 * Both rate configuration and current data rate can be retrieved 502 * with this request. 503 */ 504static int mwifiex_ret_802_11_tx_rate_query(struct mwifiex_private *priv, 505 struct host_cmd_ds_command *resp) 506{ 507 priv->tx_rate = resp->params.tx_rate.tx_rate; 508 priv->tx_htinfo = resp->params.tx_rate.ht_info; 509 if (!priv->is_data_rate_auto) 510 priv->data_rate = 511 mwifiex_index_to_data_rate(priv->tx_rate, 512 priv->tx_htinfo); 513 514 return 0; 515} 516 517/* 518 * This function handles the command response of a deauthenticate 519 * command. 520 * 521 * If the deauthenticated MAC matches the current BSS MAC, the connection 522 * state is reset. 523 */ 524static int mwifiex_ret_802_11_deauthenticate(struct mwifiex_private *priv, 525 struct host_cmd_ds_command *resp) 526{ 527 struct mwifiex_adapter *adapter = priv->adapter; 528 529 adapter->dbg.num_cmd_deauth++; 530 if (!memcmp(resp->params.deauth.mac_addr, 531 &priv->curr_bss_params.bss_descriptor.mac_address, 532 sizeof(resp->params.deauth.mac_addr))) 533 mwifiex_reset_connect_state(priv); 534 535 return 0; 536} 537 538/* 539 * This function handles the command response of ad-hoc stop. 540 * 541 * The function resets the connection state in driver. 542 */ 543static int mwifiex_ret_802_11_ad_hoc_stop(struct mwifiex_private *priv, 544 struct host_cmd_ds_command *resp) 545{ 546 mwifiex_reset_connect_state(priv); 547 return 0; 548} 549 550/* 551 * This function handles the command response of set/get key material. 552 * 553 * Handling includes updating the driver parameters to reflect the 554 * changes. 555 */ 556static int mwifiex_ret_802_11_key_material(struct mwifiex_private *priv, 557 struct host_cmd_ds_command *resp) 558{ 559 struct host_cmd_ds_802_11_key_material *key = 560 &resp->params.key_material; 561 562 if (le16_to_cpu(key->action) == HostCmd_ACT_GEN_SET) { 563 if ((le16_to_cpu(key->key_param_set.key_info) & KEY_MCAST)) { 564 dev_dbg(priv->adapter->dev, "info: key: GTK is set\n"); 565 priv->wpa_is_gtk_set = true; 566 priv->scan_block = false; 567 } 568 } 569 570 memset(priv->aes_key.key_param_set.key, 0, 571 sizeof(key->key_param_set.key)); 572 priv->aes_key.key_param_set.key_len = key->key_param_set.key_len; 573 memcpy(priv->aes_key.key_param_set.key, key->key_param_set.key, 574 le16_to_cpu(priv->aes_key.key_param_set.key_len)); 575 576 return 0; 577} 578 579/* 580 * This function handles the command response of get 11d domain information. 581 */ 582static int mwifiex_ret_802_11d_domain_info(struct mwifiex_private *priv, 583 struct host_cmd_ds_command *resp) 584{ 585 struct host_cmd_ds_802_11d_domain_info_rsp *domain_info = 586 &resp->params.domain_info_resp; 587 struct mwifiex_ietypes_domain_param_set *domain = &domain_info->domain; 588 u16 action = le16_to_cpu(domain_info->action); 589 u8 no_of_triplet; 590 591 no_of_triplet = (u8) ((le16_to_cpu(domain->header.len) - 592 IEEE80211_COUNTRY_STRING_LEN) / 593 sizeof(struct ieee80211_country_ie_triplet)); 594 595 dev_dbg(priv->adapter->dev, "info: 11D Domain Info Resp:" 596 " no_of_triplet=%d\n", no_of_triplet); 597 598 if (no_of_triplet > MWIFIEX_MAX_TRIPLET_802_11D) { 599 dev_warn(priv->adapter->dev, 600 "11D: invalid number of triplets %d " 601 "returned!!\n", no_of_triplet); 602 return -1; 603 } 604 605 switch (action) { 606 case HostCmd_ACT_GEN_SET: /* Proc Set Action */ 607 break; 608 case HostCmd_ACT_GEN_GET: 609 break; 610 default: 611 dev_err(priv->adapter->dev, 612 "11D: invalid action:%d\n", domain_info->action); 613 return -1; 614 } 615 616 return 0; 617} 618 619/* 620 * This function handles the command response of get RF channel. 621 * 622 * Handling includes changing the header fields into CPU format 623 * and saving the new channel in driver. 624 */ 625static int mwifiex_ret_802_11_rf_channel(struct mwifiex_private *priv, 626 struct host_cmd_ds_command *resp, 627 u16 *data_buf) 628{ 629 struct host_cmd_ds_802_11_rf_channel *rf_channel = 630 &resp->params.rf_channel; 631 u16 new_channel = le16_to_cpu(rf_channel->current_channel); 632 633 if (priv->curr_bss_params.bss_descriptor.channel != new_channel) { 634 dev_dbg(priv->adapter->dev, "cmd: Channel Switch: %d to %d\n", 635 priv->curr_bss_params.bss_descriptor.channel, 636 new_channel); 637 /* Update the channel again */ 638 priv->curr_bss_params.bss_descriptor.channel = new_channel; 639 } 640 641 if (data_buf) 642 *data_buf = new_channel; 643 644 return 0; 645} 646 647/* 648 * This function handles the command response of get extended version. 649 * 650 * Handling includes forming the extended version string and sending it 651 * to application. 652 */ 653static int mwifiex_ret_ver_ext(struct mwifiex_private *priv, 654 struct host_cmd_ds_command *resp, 655 struct host_cmd_ds_version_ext *version_ext) 656{ 657 struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext; 658 659 if (version_ext) { 660 version_ext->version_str_sel = ver_ext->version_str_sel; 661 memcpy(version_ext->version_str, ver_ext->version_str, 662 sizeof(char) * 128); 663 memcpy(priv->version_str, ver_ext->version_str, 128); 664 } 665 return 0; 666} 667 668/* 669 * This function handles the command response of register access. 670 * 671 * The register value and offset are returned to the user. For EEPROM 672 * access, the byte count is also returned. 673 */ 674static int mwifiex_ret_reg_access(u16 type, struct host_cmd_ds_command *resp, 675 void *data_buf) 676{ 677 struct mwifiex_ds_reg_rw *reg_rw; 678 struct mwifiex_ds_read_eeprom *eeprom; 679 680 if (data_buf) { 681 reg_rw = data_buf; 682 eeprom = data_buf; 683 switch (type) { 684 case HostCmd_CMD_MAC_REG_ACCESS: 685 { 686 struct host_cmd_ds_mac_reg_access *reg; 687 reg = (struct host_cmd_ds_mac_reg_access *) 688 &resp->params.mac_reg; 689 reg_rw->offset = cpu_to_le32( 690 (u32) le16_to_cpu(reg->offset)); 691 reg_rw->value = reg->value; 692 break; 693 } 694 case HostCmd_CMD_BBP_REG_ACCESS: 695 { 696 struct host_cmd_ds_bbp_reg_access *reg; 697 reg = (struct host_cmd_ds_bbp_reg_access *) 698 &resp->params.bbp_reg; 699 reg_rw->offset = cpu_to_le32( 700 (u32) le16_to_cpu(reg->offset)); 701 reg_rw->value = cpu_to_le32((u32) reg->value); 702 break; 703 } 704 705 case HostCmd_CMD_RF_REG_ACCESS: 706 { 707 struct host_cmd_ds_rf_reg_access *reg; 708 reg = (struct host_cmd_ds_rf_reg_access *) 709 &resp->params.rf_reg; 710 reg_rw->offset = cpu_to_le32( 711 (u32) le16_to_cpu(reg->offset)); 712 reg_rw->value = cpu_to_le32((u32) reg->value); 713 break; 714 } 715 case HostCmd_CMD_PMIC_REG_ACCESS: 716 { 717 struct host_cmd_ds_pmic_reg_access *reg; 718 reg = (struct host_cmd_ds_pmic_reg_access *) 719 &resp->params.pmic_reg; 720 reg_rw->offset = cpu_to_le32( 721 (u32) le16_to_cpu(reg->offset)); 722 reg_rw->value = cpu_to_le32((u32) reg->value); 723 break; 724 } 725 case HostCmd_CMD_CAU_REG_ACCESS: 726 { 727 struct host_cmd_ds_rf_reg_access *reg; 728 reg = (struct host_cmd_ds_rf_reg_access *) 729 &resp->params.rf_reg; 730 reg_rw->offset = cpu_to_le32( 731 (u32) le16_to_cpu(reg->offset)); 732 reg_rw->value = cpu_to_le32((u32) reg->value); 733 break; 734 } 735 case HostCmd_CMD_802_11_EEPROM_ACCESS: 736 { 737 struct host_cmd_ds_802_11_eeprom_access 738 *cmd_eeprom = 739 (struct host_cmd_ds_802_11_eeprom_access 740 *) &resp->params.eeprom; 741 pr_debug("info: EEPROM read len=%x\n", 742 cmd_eeprom->byte_count); 743 if (le16_to_cpu(eeprom->byte_count) < 744 le16_to_cpu( 745 cmd_eeprom->byte_count)) { 746 eeprom->byte_count = cpu_to_le16(0); 747 pr_debug("info: EEPROM read " 748 "length is too big\n"); 749 return -1; 750 } 751 eeprom->offset = cmd_eeprom->offset; 752 eeprom->byte_count = cmd_eeprom->byte_count; 753 if (le16_to_cpu(eeprom->byte_count) > 0) 754 memcpy(&eeprom->value, 755 &cmd_eeprom->value, 756 le16_to_cpu(eeprom->byte_count)); 757 758 break; 759 } 760 default: 761 return -1; 762 } 763 } 764 return 0; 765} 766 767/* 768 * This function handles the command response of get IBSS coalescing status. 769 * 770 * If the received BSSID is different than the current one, the current BSSID, 771 * beacon interval, ATIM window and ERP information are updated, along with 772 * changing the ad-hoc state accordingly. 773 */ 774static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv, 775 struct host_cmd_ds_command *resp) 776{ 777 struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp = 778 &(resp->params.ibss_coalescing); 779 u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 }; 780 781 if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET) 782 return 0; 783 784 dev_dbg(priv->adapter->dev, 785 "info: new BSSID %pM\n", ibss_coal_resp->bssid); 786 787 /* If rsp has NULL BSSID, Just return..... No Action */ 788 if (!memcmp(ibss_coal_resp->bssid, zero_mac, ETH_ALEN)) { 789 dev_warn(priv->adapter->dev, "new BSSID is NULL\n"); 790 return 0; 791 } 792 793 /* If BSSID is diff, modify current BSS parameters */ 794 if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address, 795 ibss_coal_resp->bssid, ETH_ALEN)) { 796 /* BSSID */ 797 memcpy(priv->curr_bss_params.bss_descriptor.mac_address, 798 ibss_coal_resp->bssid, ETH_ALEN); 799 800 /* Beacon Interval */ 801 priv->curr_bss_params.bss_descriptor.beacon_period 802 = le16_to_cpu(ibss_coal_resp->beacon_interval); 803 804 /* ERP Information */ 805 priv->curr_bss_params.bss_descriptor.erp_flags = 806 (u8) le16_to_cpu(ibss_coal_resp->use_g_rate_protect); 807 808 priv->adhoc_state = ADHOC_COALESCED; 809 } 810 811 return 0; 812} 813 814/* 815 * This function handles the command responses. 816 * 817 * This is a generic function, which calls command specific 818 * response handlers based on the command ID. 819 */ 820int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no, 821 struct host_cmd_ds_command *resp) 822{ 823 int ret = 0; 824 struct mwifiex_adapter *adapter = priv->adapter; 825 void *data_buf = adapter->curr_cmd->data_buf; 826 827 /* If the command is not successful, cleanup and return failure */ 828 if (resp->result != HostCmd_RESULT_OK) { 829 mwifiex_process_cmdresp_error(priv, resp); 830 return -1; 831 } 832 /* Command successful, handle response */ 833 switch (cmdresp_no) { 834 case HostCmd_CMD_GET_HW_SPEC: 835 ret = mwifiex_ret_get_hw_spec(priv, resp); 836 break; 837 case HostCmd_CMD_MAC_CONTROL: 838 break; 839 case HostCmd_CMD_802_11_MAC_ADDRESS: 840 ret = mwifiex_ret_802_11_mac_address(priv, resp); 841 break; 842 case HostCmd_CMD_MAC_MULTICAST_ADR: 843 ret = mwifiex_ret_mac_multicast_adr(priv, resp); 844 break; 845 case HostCmd_CMD_TX_RATE_CFG: 846 ret = mwifiex_ret_tx_rate_cfg(priv, resp, data_buf); 847 break; 848 case HostCmd_CMD_802_11_SCAN: 849 ret = mwifiex_ret_802_11_scan(priv, resp); 850 adapter->curr_cmd->wait_q_enabled = false; 851 break; 852 case HostCmd_CMD_802_11_BG_SCAN_QUERY: 853 ret = mwifiex_ret_802_11_scan(priv, resp); 854 dev_dbg(adapter->dev, 855 "info: CMD_RESP: BG_SCAN result is ready!\n"); 856 break; 857 case HostCmd_CMD_TXPWR_CFG: 858 ret = mwifiex_ret_tx_power_cfg(priv, resp); 859 break; 860 case HostCmd_CMD_802_11_PS_MODE_ENH: 861 ret = mwifiex_ret_enh_power_mode(priv, resp, data_buf); 862 break; 863 case HostCmd_CMD_802_11_HS_CFG_ENH: 864 ret = mwifiex_ret_802_11_hs_cfg(priv, resp); 865 break; 866 case HostCmd_CMD_802_11_ASSOCIATE: 867 ret = mwifiex_ret_802_11_associate(priv, resp); 868 break; 869 case HostCmd_CMD_802_11_DEAUTHENTICATE: 870 ret = mwifiex_ret_802_11_deauthenticate(priv, resp); 871 break; 872 case HostCmd_CMD_802_11_AD_HOC_START: 873 case HostCmd_CMD_802_11_AD_HOC_JOIN: 874 ret = mwifiex_ret_802_11_ad_hoc(priv, resp); 875 break; 876 case HostCmd_CMD_802_11_AD_HOC_STOP: 877 ret = mwifiex_ret_802_11_ad_hoc_stop(priv, resp); 878 break; 879 case HostCmd_CMD_802_11_GET_LOG: 880 ret = mwifiex_ret_get_log(priv, resp, data_buf); 881 break; 882 case HostCmd_CMD_RSSI_INFO: 883 ret = mwifiex_ret_802_11_rssi_info(priv, resp, data_buf); 884 break; 885 case HostCmd_CMD_802_11_SNMP_MIB: 886 ret = mwifiex_ret_802_11_snmp_mib(priv, resp, data_buf); 887 break; 888 case HostCmd_CMD_802_11_TX_RATE_QUERY: 889 ret = mwifiex_ret_802_11_tx_rate_query(priv, resp); 890 break; 891 case HostCmd_CMD_802_11_RF_CHANNEL: 892 ret = mwifiex_ret_802_11_rf_channel(priv, resp, data_buf); 893 break; 894 case HostCmd_CMD_VERSION_EXT: 895 ret = mwifiex_ret_ver_ext(priv, resp, data_buf); 896 break; 897 case HostCmd_CMD_FUNC_INIT: 898 case HostCmd_CMD_FUNC_SHUTDOWN: 899 break; 900 case HostCmd_CMD_802_11_KEY_MATERIAL: 901 ret = mwifiex_ret_802_11_key_material(priv, resp); 902 break; 903 case HostCmd_CMD_802_11D_DOMAIN_INFO: 904 ret = mwifiex_ret_802_11d_domain_info(priv, resp); 905 break; 906 case HostCmd_CMD_11N_ADDBA_REQ: 907 ret = mwifiex_ret_11n_addba_req(priv, resp); 908 break; 909 case HostCmd_CMD_11N_DELBA: 910 ret = mwifiex_ret_11n_delba(priv, resp); 911 break; 912 case HostCmd_CMD_11N_ADDBA_RSP: 913 ret = mwifiex_ret_11n_addba_resp(priv, resp); 914 break; 915 case HostCmd_CMD_RECONFIGURE_TX_BUFF: 916 adapter->tx_buf_size = (u16) le16_to_cpu(resp->params. 917 tx_buf.buff_size); 918 adapter->tx_buf_size = (adapter->tx_buf_size / 919 MWIFIEX_SDIO_BLOCK_SIZE) * 920 MWIFIEX_SDIO_BLOCK_SIZE; 921 adapter->curr_tx_buf_size = adapter->tx_buf_size; 922 dev_dbg(adapter->dev, 923 "cmd: max_tx_buf_size=%d, tx_buf_size=%d\n", 924 adapter->max_tx_buf_size, adapter->tx_buf_size); 925 926 if (adapter->if_ops.update_mp_end_port) 927 adapter->if_ops.update_mp_end_port(adapter, 928 le16_to_cpu(resp-> 929 params. 930 tx_buf. 931 mp_end_port)); 932 break; 933 case HostCmd_CMD_AMSDU_AGGR_CTRL: 934 ret = mwifiex_ret_amsdu_aggr_ctrl(resp, data_buf); 935 break; 936 case HostCmd_CMD_WMM_GET_STATUS: 937 ret = mwifiex_ret_wmm_get_status(priv, resp); 938 break; 939 case HostCmd_CMD_802_11_IBSS_COALESCING_STATUS: 940 ret = mwifiex_ret_ibss_coalescing_status(priv, resp); 941 break; 942 case HostCmd_CMD_MAC_REG_ACCESS: 943 case HostCmd_CMD_BBP_REG_ACCESS: 944 case HostCmd_CMD_RF_REG_ACCESS: 945 case HostCmd_CMD_PMIC_REG_ACCESS: 946 case HostCmd_CMD_CAU_REG_ACCESS: 947 case HostCmd_CMD_802_11_EEPROM_ACCESS: 948 ret = mwifiex_ret_reg_access(cmdresp_no, resp, data_buf); 949 break; 950 case HostCmd_CMD_SET_BSS_MODE: 951 break; 952 case HostCmd_CMD_11N_CFG: 953 ret = mwifiex_ret_11n_cfg(resp, data_buf); 954 break; 955 default: 956 dev_err(adapter->dev, "CMD_RESP: unknown cmd response %#x\n", 957 resp->command); 958 break; 959 } 960 961 return ret; 962}