init.c revision 9d68d1eea7fb4d05b5bd037da6a66329d640b2f1
1/* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2009 Nokia Corporation 5 * 6 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 24#include <linux/kernel.h> 25#include <linux/module.h> 26#include <linux/slab.h> 27 28#include "debug.h" 29#include "init.h" 30#include "wl12xx_80211.h" 31#include "acx.h" 32#include "cmd.h" 33#include "tx.h" 34#include "io.h" 35 36int wl1271_init_templates_config(struct wl1271 *wl) 37{ 38 int ret, i; 39 size_t max_size; 40 41 /* send empty templates for fw memory reservation */ 42 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 43 CMD_TEMPL_CFG_PROBE_REQ_2_4, NULL, 44 WL1271_CMD_TEMPL_MAX_SIZE, 45 0, WL1271_RATE_AUTOMATIC); 46 if (ret < 0) 47 return ret; 48 49 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 50 CMD_TEMPL_CFG_PROBE_REQ_5, 51 NULL, WL1271_CMD_TEMPL_MAX_SIZE, 0, 52 WL1271_RATE_AUTOMATIC); 53 if (ret < 0) 54 return ret; 55 56 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 57 CMD_TEMPL_NULL_DATA, NULL, 58 sizeof(struct wl12xx_null_data_template), 59 0, WL1271_RATE_AUTOMATIC); 60 if (ret < 0) 61 return ret; 62 63 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 64 CMD_TEMPL_PS_POLL, NULL, 65 sizeof(struct wl12xx_ps_poll_template), 66 0, WL1271_RATE_AUTOMATIC); 67 if (ret < 0) 68 return ret; 69 70 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 71 CMD_TEMPL_QOS_NULL_DATA, NULL, 72 sizeof 73 (struct ieee80211_qos_hdr), 74 0, WL1271_RATE_AUTOMATIC); 75 if (ret < 0) 76 return ret; 77 78 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 79 CMD_TEMPL_PROBE_RESPONSE, NULL, 80 WL1271_CMD_TEMPL_DFLT_SIZE, 81 0, WL1271_RATE_AUTOMATIC); 82 if (ret < 0) 83 return ret; 84 85 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 86 CMD_TEMPL_BEACON, NULL, 87 WL1271_CMD_TEMPL_DFLT_SIZE, 88 0, WL1271_RATE_AUTOMATIC); 89 if (ret < 0) 90 return ret; 91 92 max_size = sizeof(struct wl12xx_arp_rsp_template) + 93 WL1271_EXTRA_SPACE_MAX; 94 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 95 CMD_TEMPL_ARP_RSP, NULL, 96 max_size, 97 0, WL1271_RATE_AUTOMATIC); 98 if (ret < 0) 99 return ret; 100 101 /* 102 * Put very large empty placeholders for all templates. These 103 * reserve memory for later. 104 */ 105 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 106 CMD_TEMPL_AP_PROBE_RESPONSE, NULL, 107 WL1271_CMD_TEMPL_MAX_SIZE, 108 0, WL1271_RATE_AUTOMATIC); 109 if (ret < 0) 110 return ret; 111 112 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 113 CMD_TEMPL_AP_BEACON, NULL, 114 WL1271_CMD_TEMPL_MAX_SIZE, 115 0, WL1271_RATE_AUTOMATIC); 116 if (ret < 0) 117 return ret; 118 119 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 120 CMD_TEMPL_DEAUTH_AP, NULL, 121 sizeof 122 (struct wl12xx_disconn_template), 123 0, WL1271_RATE_AUTOMATIC); 124 if (ret < 0) 125 return ret; 126 127 for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) { 128 ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, 129 CMD_TEMPL_KLV, NULL, 130 sizeof(struct ieee80211_qos_hdr), 131 i, WL1271_RATE_AUTOMATIC); 132 if (ret < 0) 133 return ret; 134 } 135 136 return 0; 137} 138 139static int wl1271_ap_init_deauth_template(struct wl1271 *wl, 140 struct wl12xx_vif *wlvif) 141{ 142 struct wl12xx_disconn_template *tmpl; 143 int ret; 144 u32 rate; 145 146 tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL); 147 if (!tmpl) { 148 ret = -ENOMEM; 149 goto out; 150 } 151 152 tmpl->header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | 153 IEEE80211_STYPE_DEAUTH); 154 155 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); 156 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 157 CMD_TEMPL_DEAUTH_AP, 158 tmpl, sizeof(*tmpl), 0, rate); 159 160out: 161 kfree(tmpl); 162 return ret; 163} 164 165static int wl1271_ap_init_null_template(struct wl1271 *wl, 166 struct ieee80211_vif *vif) 167{ 168 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 169 struct ieee80211_hdr_3addr *nullfunc; 170 int ret; 171 u32 rate; 172 173 nullfunc = kzalloc(sizeof(*nullfunc), GFP_KERNEL); 174 if (!nullfunc) { 175 ret = -ENOMEM; 176 goto out; 177 } 178 179 nullfunc->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 180 IEEE80211_STYPE_NULLFUNC | 181 IEEE80211_FCTL_FROMDS); 182 183 /* nullfunc->addr1 is filled by FW */ 184 185 memcpy(nullfunc->addr2, vif->addr, ETH_ALEN); 186 memcpy(nullfunc->addr3, vif->addr, ETH_ALEN); 187 188 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); 189 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 190 CMD_TEMPL_NULL_DATA, nullfunc, 191 sizeof(*nullfunc), 0, rate); 192 193out: 194 kfree(nullfunc); 195 return ret; 196} 197 198static int wl1271_ap_init_qos_null_template(struct wl1271 *wl, 199 struct ieee80211_vif *vif) 200{ 201 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 202 struct ieee80211_qos_hdr *qosnull; 203 int ret; 204 u32 rate; 205 206 qosnull = kzalloc(sizeof(*qosnull), GFP_KERNEL); 207 if (!qosnull) { 208 ret = -ENOMEM; 209 goto out; 210 } 211 212 qosnull->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 213 IEEE80211_STYPE_QOS_NULLFUNC | 214 IEEE80211_FCTL_FROMDS); 215 216 /* qosnull->addr1 is filled by FW */ 217 218 memcpy(qosnull->addr2, vif->addr, ETH_ALEN); 219 memcpy(qosnull->addr3, vif->addr, ETH_ALEN); 220 221 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); 222 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 223 CMD_TEMPL_QOS_NULL_DATA, qosnull, 224 sizeof(*qosnull), 0, rate); 225 226out: 227 kfree(qosnull); 228 return ret; 229} 230 231static int wl12xx_init_rx_config(struct wl1271 *wl) 232{ 233 int ret; 234 235 ret = wl1271_acx_rx_msdu_life_time(wl); 236 if (ret < 0) 237 return ret; 238 239 return 0; 240} 241 242static int wl12xx_init_phy_vif_config(struct wl1271 *wl, 243 struct wl12xx_vif *wlvif) 244{ 245 int ret; 246 247 ret = wl1271_acx_slot(wl, wlvif, DEFAULT_SLOT_TIME); 248 if (ret < 0) 249 return ret; 250 251 ret = wl1271_acx_service_period_timeout(wl, wlvif); 252 if (ret < 0) 253 return ret; 254 255 ret = wl1271_acx_rts_threshold(wl, wlvif, wl->hw->wiphy->rts_threshold); 256 if (ret < 0) 257 return ret; 258 259 return 0; 260} 261 262static int wl1271_init_sta_beacon_filter(struct wl1271 *wl, 263 struct wl12xx_vif *wlvif) 264{ 265 int ret; 266 267 ret = wl1271_acx_beacon_filter_table(wl, wlvif); 268 if (ret < 0) 269 return ret; 270 271 /* enable beacon filtering */ 272 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true); 273 if (ret < 0) 274 return ret; 275 276 return 0; 277} 278 279int wl1271_init_pta(struct wl1271 *wl) 280{ 281 int ret; 282 283 ret = wl12xx_acx_sg_cfg(wl); 284 if (ret < 0) 285 return ret; 286 287 ret = wl1271_acx_sg_enable(wl, wl->sg_enabled); 288 if (ret < 0) 289 return ret; 290 291 return 0; 292} 293 294int wl1271_init_energy_detection(struct wl1271 *wl) 295{ 296 int ret; 297 298 ret = wl1271_acx_cca_threshold(wl); 299 if (ret < 0) 300 return ret; 301 302 return 0; 303} 304 305static int wl1271_init_beacon_broadcast(struct wl1271 *wl, 306 struct wl12xx_vif *wlvif) 307{ 308 int ret; 309 310 ret = wl1271_acx_bcn_dtim_options(wl, wlvif); 311 if (ret < 0) 312 return ret; 313 314 return 0; 315} 316 317static int wl12xx_init_fwlog(struct wl1271 *wl) 318{ 319 int ret; 320 321 if (wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) 322 return 0; 323 324 ret = wl12xx_cmd_config_fwlog(wl); 325 if (ret < 0) 326 return ret; 327 328 return 0; 329} 330 331/* generic sta initialization (non vif-specific) */ 332static int wl1271_sta_hw_init(struct wl1271 *wl, struct wl12xx_vif *wlvif) 333{ 334 int ret; 335 336 /* PS config */ 337 ret = wl12xx_acx_config_ps(wl, wlvif); 338 if (ret < 0) 339 return ret; 340 341 /* FM WLAN coexistence */ 342 ret = wl1271_acx_fm_coex(wl); 343 if (ret < 0) 344 return ret; 345 346 ret = wl1271_acx_sta_rate_policies(wl, wlvif); 347 if (ret < 0) 348 return ret; 349 350 return 0; 351} 352 353static int wl1271_sta_hw_init_post_mem(struct wl1271 *wl, 354 struct ieee80211_vif *vif) 355{ 356 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 357 int ret, i; 358 359 /* disable all keep-alive templates */ 360 for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) { 361 ret = wl1271_acx_keep_alive_config(wl, wlvif, i, 362 ACX_KEEP_ALIVE_TPL_INVALID); 363 if (ret < 0) 364 return ret; 365 } 366 367 /* disable the keep-alive feature */ 368 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false); 369 if (ret < 0) 370 return ret; 371 372 return 0; 373} 374 375/* generic ap initialization (non vif-specific) */ 376static int wl1271_ap_hw_init(struct wl1271 *wl, struct wl12xx_vif *wlvif) 377{ 378 int ret; 379 380 ret = wl1271_init_ap_rates(wl, wlvif); 381 if (ret < 0) 382 return ret; 383 384 return 0; 385} 386 387int wl1271_ap_init_templates(struct wl1271 *wl, struct ieee80211_vif *vif) 388{ 389 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 390 int ret; 391 392 ret = wl1271_ap_init_deauth_template(wl, wlvif); 393 if (ret < 0) 394 return ret; 395 396 ret = wl1271_ap_init_null_template(wl, vif); 397 if (ret < 0) 398 return ret; 399 400 ret = wl1271_ap_init_qos_null_template(wl, vif); 401 if (ret < 0) 402 return ret; 403 404 /* 405 * when operating as AP we want to receive external beacons for 406 * configuring ERP protection. 407 */ 408 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false); 409 if (ret < 0) 410 return ret; 411 412 return 0; 413} 414 415static int wl1271_ap_hw_init_post_mem(struct wl1271 *wl, 416 struct ieee80211_vif *vif) 417{ 418 return wl1271_ap_init_templates(wl, vif); 419} 420 421int wl1271_init_ap_rates(struct wl1271 *wl, struct wl12xx_vif *wlvif) 422{ 423 int i, ret; 424 struct conf_tx_rate_class rc; 425 u32 supported_rates; 426 427 wl1271_debug(DEBUG_AP, "AP basic rate set: 0x%x", 428 wlvif->basic_rate_set); 429 430 if (wlvif->basic_rate_set == 0) 431 return -EINVAL; 432 433 rc.enabled_rates = wlvif->basic_rate_set; 434 rc.long_retry_limit = 10; 435 rc.short_retry_limit = 10; 436 rc.aflags = 0; 437 ret = wl1271_acx_ap_rate_policy(wl, &rc, wlvif->ap.mgmt_rate_idx); 438 if (ret < 0) 439 return ret; 440 441 /* use the min basic rate for AP broadcast/multicast */ 442 rc.enabled_rates = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); 443 rc.short_retry_limit = 10; 444 rc.long_retry_limit = 10; 445 rc.aflags = 0; 446 ret = wl1271_acx_ap_rate_policy(wl, &rc, wlvif->ap.bcast_rate_idx); 447 if (ret < 0) 448 return ret; 449 450 /* 451 * If the basic rates contain OFDM rates, use OFDM only 452 * rates for unicast TX as well. Else use all supported rates. 453 */ 454 if ((wlvif->basic_rate_set & CONF_TX_OFDM_RATES)) 455 supported_rates = CONF_TX_OFDM_RATES; 456 else 457 supported_rates = CONF_TX_AP_ENABLED_RATES; 458 459 /* unconditionally enable HT rates */ 460 supported_rates |= CONF_TX_MCS_RATES; 461 462 /* configure unicast TX rate classes */ 463 for (i = 0; i < wl->conf.tx.ac_conf_count; i++) { 464 rc.enabled_rates = supported_rates; 465 rc.short_retry_limit = 10; 466 rc.long_retry_limit = 10; 467 rc.aflags = 0; 468 ret = wl1271_acx_ap_rate_policy(wl, &rc, 469 wlvif->ap.ucast_rate_idx[i]); 470 if (ret < 0) 471 return ret; 472 } 473 474 return 0; 475} 476 477static int wl1271_set_ba_policies(struct wl1271 *wl, struct wl12xx_vif *wlvif) 478{ 479 /* Reset the BA RX indicators */ 480 wlvif->ba_allowed = true; 481 wl->ba_rx_session_count = 0; 482 483 /* BA is supported in STA/AP modes */ 484 if (wlvif->bss_type != BSS_TYPE_AP_BSS && 485 wlvif->bss_type != BSS_TYPE_STA_BSS) { 486 wlvif->ba_support = false; 487 return 0; 488 } 489 490 wlvif->ba_support = true; 491 492 /* 802.11n initiator BA session setting */ 493 return wl12xx_acx_set_ba_initiator_policy(wl, wlvif); 494} 495 496/* vif-specifc initialization */ 497static int wl12xx_init_sta_role(struct wl1271 *wl, struct wl12xx_vif *wlvif) 498{ 499 int ret; 500 501 ret = wl1271_acx_group_address_tbl(wl, wlvif, true, NULL, 0); 502 if (ret < 0) 503 return ret; 504 505 /* Initialize connection monitoring thresholds */ 506 ret = wl1271_acx_conn_monit_params(wl, wlvif, false); 507 if (ret < 0) 508 return ret; 509 510 /* Beacon filtering */ 511 ret = wl1271_init_sta_beacon_filter(wl, wlvif); 512 if (ret < 0) 513 return ret; 514 515 /* Beacons and broadcast settings */ 516 ret = wl1271_init_beacon_broadcast(wl, wlvif); 517 if (ret < 0) 518 return ret; 519 520 /* Configure rssi/snr averaging weights */ 521 ret = wl1271_acx_rssi_snr_avg_weights(wl, wlvif); 522 if (ret < 0) 523 return ret; 524 525 return 0; 526} 527 528/* vif-specific intialization */ 529static int wl12xx_init_ap_role(struct wl1271 *wl, struct wl12xx_vif *wlvif) 530{ 531 int ret; 532 533 ret = wl1271_acx_ap_max_tx_retry(wl, wlvif); 534 if (ret < 0) 535 return ret; 536 537 /* initialize Tx power */ 538 ret = wl1271_acx_tx_power(wl, wlvif, wlvif->power_level); 539 if (ret < 0) 540 return ret; 541 542 return 0; 543} 544 545int wl1271_init_vif_specific(struct wl1271 *wl, struct ieee80211_vif *vif) 546{ 547 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 548 struct conf_tx_ac_category *conf_ac; 549 struct conf_tx_tid *conf_tid; 550 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS); 551 int ret, i; 552 553 /* 554 * consider all existing roles before configuring psm. 555 * TODO: reconfigure on interface removal. 556 */ 557 if (!wl->ap_count) { 558 if (is_ap) { 559 /* Configure for power always on */ 560 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM); 561 if (ret < 0) 562 return ret; 563 } else if (!wl->sta_count) { 564 if (wl->quirks & WLCORE_QUIRK_NO_ELP) { 565 /* Configure for power always on */ 566 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM); 567 if (ret < 0) 568 return ret; 569 } else { 570 /* Configure for ELP power saving */ 571 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP); 572 if (ret < 0) 573 return ret; 574 } 575 } 576 } 577 578 /* Mode specific init */ 579 if (is_ap) { 580 ret = wl1271_ap_hw_init(wl, wlvif); 581 if (ret < 0) 582 return ret; 583 584 ret = wl12xx_init_ap_role(wl, wlvif); 585 if (ret < 0) 586 return ret; 587 } else { 588 ret = wl1271_sta_hw_init(wl, wlvif); 589 if (ret < 0) 590 return ret; 591 592 ret = wl12xx_init_sta_role(wl, wlvif); 593 if (ret < 0) 594 return ret; 595 } 596 597 wl12xx_init_phy_vif_config(wl, wlvif); 598 599 /* Default TID/AC configuration */ 600 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count); 601 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) { 602 conf_ac = &wl->conf.tx.ac_conf[i]; 603 ret = wl1271_acx_ac_cfg(wl, wlvif, conf_ac->ac, 604 conf_ac->cw_min, conf_ac->cw_max, 605 conf_ac->aifsn, conf_ac->tx_op_limit); 606 if (ret < 0) 607 return ret; 608 609 conf_tid = &wl->conf.tx.tid_conf[i]; 610 ret = wl1271_acx_tid_cfg(wl, wlvif, 611 conf_tid->queue_id, 612 conf_tid->channel_type, 613 conf_tid->tsid, 614 conf_tid->ps_scheme, 615 conf_tid->ack_policy, 616 conf_tid->apsd_conf[0], 617 conf_tid->apsd_conf[1]); 618 if (ret < 0) 619 return ret; 620 } 621 622 /* Configure HW encryption */ 623 ret = wl1271_acx_feature_cfg(wl, wlvif); 624 if (ret < 0) 625 return ret; 626 627 /* Mode specific init - post mem init */ 628 if (is_ap) 629 ret = wl1271_ap_hw_init_post_mem(wl, vif); 630 else 631 ret = wl1271_sta_hw_init_post_mem(wl, vif); 632 633 if (ret < 0) 634 return ret; 635 636 /* Configure initiator BA sessions policies */ 637 ret = wl1271_set_ba_policies(wl, wlvif); 638 if (ret < 0) 639 return ret; 640 641 return 0; 642} 643 644int wl1271_hw_init(struct wl1271 *wl) 645{ 646 int ret; 647 648 /* Chip-specific hw init */ 649 ret = wl->ops->hw_init(wl); 650 if (ret < 0) 651 return ret; 652 653 /* Init templates */ 654 ret = wl1271_init_templates_config(wl); 655 if (ret < 0) 656 return ret; 657 658 ret = wl12xx_acx_mem_cfg(wl); 659 if (ret < 0) 660 return ret; 661 662 /* Configure the FW logger */ 663 ret = wl12xx_init_fwlog(wl); 664 if (ret < 0) 665 return ret; 666 667 /* Bluetooth WLAN coexistence */ 668 ret = wl1271_init_pta(wl); 669 if (ret < 0) 670 return ret; 671 672 /* Default memory configuration */ 673 ret = wl1271_acx_init_mem_config(wl); 674 if (ret < 0) 675 return ret; 676 677 /* RX config */ 678 ret = wl12xx_init_rx_config(wl); 679 if (ret < 0) 680 goto out_free_memmap; 681 682 ret = wl1271_acx_dco_itrim_params(wl); 683 if (ret < 0) 684 goto out_free_memmap; 685 686 /* Configure TX patch complete interrupt behavior */ 687 ret = wl1271_acx_tx_config_options(wl); 688 if (ret < 0) 689 goto out_free_memmap; 690 691 /* RX complete interrupt pacing */ 692 ret = wl1271_acx_init_rx_interrupt(wl); 693 if (ret < 0) 694 goto out_free_memmap; 695 696 /* Energy detection */ 697 ret = wl1271_init_energy_detection(wl); 698 if (ret < 0) 699 goto out_free_memmap; 700 701 /* Default fragmentation threshold */ 702 ret = wl1271_acx_frag_threshold(wl, wl->hw->wiphy->frag_threshold); 703 if (ret < 0) 704 goto out_free_memmap; 705 706 /* Enable data path */ 707 ret = wl1271_cmd_data_path(wl, 1); 708 if (ret < 0) 709 goto out_free_memmap; 710 711 /* configure PM */ 712 ret = wl1271_acx_pm_config(wl); 713 if (ret < 0) 714 goto out_free_memmap; 715 716 ret = wl12xx_acx_set_rate_mgmt_params(wl); 717 if (ret < 0) 718 goto out_free_memmap; 719 720 /* configure hangover */ 721 ret = wl12xx_acx_config_hangover(wl); 722 if (ret < 0) 723 goto out_free_memmap; 724 725 return 0; 726 727 out_free_memmap: 728 kfree(wl->target_mem_map); 729 wl->target_mem_map = NULL; 730 731 return ret; 732} 733