1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* Copyright(c) 2018-2019 Realtek Corporation 3 */ 4 5 #include <linux/devcoredump.h> 6 7 #include "main.h" 8 #include "regd.h" 9 #include "fw.h" 10 #include "ps.h" 11 #include "sec.h" 12 #include "mac.h" 13 #include "coex.h" 14 #include "phy.h" 15 #include "reg.h" 16 #include "efuse.h" 17 #include "tx.h" 18 #include "debug.h" 19 #include "bf.h" 20 #include "sar.h" 21 22 bool rtw_disable_lps_deep_mode; 23 EXPORT_SYMBOL(rtw_disable_lps_deep_mode); 24 bool rtw_bf_support = true; 25 unsigned int rtw_debug_mask; 26 EXPORT_SYMBOL(rtw_debug_mask); 27 /* EDCCA is enabled during normal behavior. For debugging purpose in 28 * a noisy environment, it can be disabled via edcca debugfs. Because 29 * all rtw88 devices will probably be affected if environment is noisy, 30 * rtw_edcca_enabled is just declared by driver instead of by device. 31 * So, turning it off will take effect for all rtw88 devices before 32 * there is a tough reason to maintain rtw_edcca_enabled by device. 33 */ 34 bool rtw_edcca_enabled = true; 35 36 module_param_named(disable_lps_deep, rtw_disable_lps_deep_mode, bool, 0644); 37 module_param_named(support_bf, rtw_bf_support, bool, 0644); 38 module_param_named(debug_mask, rtw_debug_mask, uint, 0644); 39 40 MODULE_PARM_DESC(disable_lps_deep, "Set Y to disable Deep PS"); 41 MODULE_PARM_DESC(support_bf, "Set Y to enable beamformee support"); 42 MODULE_PARM_DESC(debug_mask, "Debugging mask"); 43 44 static struct ieee80211_channel rtw_channeltable_2g[] = { 45 {.center_freq = 2412, .hw_value = 1,}, 46 {.center_freq = 2417, .hw_value = 2,}, 47 {.center_freq = 2422, .hw_value = 3,}, 48 {.center_freq = 2427, .hw_value = 4,}, 49 {.center_freq = 2432, .hw_value = 5,}, 50 {.center_freq = 2437, .hw_value = 6,}, 51 {.center_freq = 2442, .hw_value = 7,}, 52 {.center_freq = 2447, .hw_value = 8,}, 53 {.center_freq = 2452, .hw_value = 9,}, 54 {.center_freq = 2457, .hw_value = 10,}, 55 {.center_freq = 2462, .hw_value = 11,}, 56 {.center_freq = 2467, .hw_value = 12,}, 57 {.center_freq = 2472, .hw_value = 13,}, 58 {.center_freq = 2484, .hw_value = 14,}, 59 }; 60 61 static struct ieee80211_channel rtw_channeltable_5g[] = { 62 {.center_freq = 5180, .hw_value = 36,}, 63 {.center_freq = 5200, .hw_value = 40,}, 64 {.center_freq = 5220, .hw_value = 44,}, 65 {.center_freq = 5240, .hw_value = 48,}, 66 {.center_freq = 5260, .hw_value = 52,}, 67 {.center_freq = 5280, .hw_value = 56,}, 68 {.center_freq = 5300, .hw_value = 60,}, 69 {.center_freq = 5320, .hw_value = 64,}, 70 {.center_freq = 5500, .hw_value = 100,}, 71 {.center_freq = 5520, .hw_value = 104,}, 72 {.center_freq = 5540, .hw_value = 108,}, 73 {.center_freq = 5560, .hw_value = 112,}, 74 {.center_freq = 5580, .hw_value = 116,}, 75 {.center_freq = 5600, .hw_value = 120,}, 76 {.center_freq = 5620, .hw_value = 124,}, 77 {.center_freq = 5640, .hw_value = 128,}, 78 {.center_freq = 5660, .hw_value = 132,}, 79 {.center_freq = 5680, .hw_value = 136,}, 80 {.center_freq = 5700, .hw_value = 140,}, 81 {.center_freq = 5720, .hw_value = 144,}, 82 {.center_freq = 5745, .hw_value = 149,}, 83 {.center_freq = 5765, .hw_value = 153,}, 84 {.center_freq = 5785, .hw_value = 157,}, 85 {.center_freq = 5805, .hw_value = 161,}, 86 {.center_freq = 5825, .hw_value = 165, 87 .flags = IEEE80211_CHAN_NO_HT40MINUS}, 88 }; 89 90 static struct ieee80211_rate rtw_ratetable[] = { 91 {.bitrate = 10, .hw_value = 0x00,}, 92 {.bitrate = 20, .hw_value = 0x01,}, 93 {.bitrate = 55, .hw_value = 0x02,}, 94 {.bitrate = 110, .hw_value = 0x03,}, 95 {.bitrate = 60, .hw_value = 0x04,}, 96 {.bitrate = 90, .hw_value = 0x05,}, 97 {.bitrate = 120, .hw_value = 0x06,}, 98 {.bitrate = 180, .hw_value = 0x07,}, 99 {.bitrate = 240, .hw_value = 0x08,}, 100 {.bitrate = 360, .hw_value = 0x09,}, 101 {.bitrate = 480, .hw_value = 0x0a,}, 102 {.bitrate = 540, .hw_value = 0x0b,}, 103 }; 104 105 u16 rtw_desc_to_bitrate(u8 desc_rate) 106 { 107 struct ieee80211_rate rate; 108 109 if (WARN(desc_rate >= ARRAY_SIZE(rtw_ratetable), "invalid desc rate\n")) 110 return 0; 111 112 rate = rtw_ratetable[desc_rate]; 113 114 return rate.bitrate; 115 } 116 117 static struct ieee80211_supported_band rtw_band_2ghz = { 118 .band = NL80211_BAND_2GHZ, 119 120 .channels = rtw_channeltable_2g, 121 .n_channels = ARRAY_SIZE(rtw_channeltable_2g), 122 123 .bitrates = rtw_ratetable, 124 .n_bitrates = ARRAY_SIZE(rtw_ratetable), 125 126 .ht_cap = {0}, 127 .vht_cap = {0}, 128 }; 129 130 static struct ieee80211_supported_band rtw_band_5ghz = { 131 .band = NL80211_BAND_5GHZ, 132 133 .channels = rtw_channeltable_5g, 134 .n_channels = ARRAY_SIZE(rtw_channeltable_5g), 135 136 /* 5G has no CCK rates */ 137 .bitrates = rtw_ratetable + 4, 138 .n_bitrates = ARRAY_SIZE(rtw_ratetable) - 4, 139 140 .ht_cap = {0}, 141 .vht_cap = {0}, 142 }; 143 144 struct rtw_watch_dog_iter_data { 145 struct rtw_dev *rtwdev; 146 struct rtw_vif *rtwvif; 147 }; 148 149 static void rtw_dynamic_csi_rate(struct rtw_dev *rtwdev, struct rtw_vif *rtwvif) 150 { 151 struct rtw_bf_info *bf_info = &rtwdev->bf_info; 152 u8 fix_rate_enable = 0; 153 u8 new_csi_rate_idx; 154 155 if (rtwvif->bfee.role != RTW_BFEE_SU && 156 rtwvif->bfee.role != RTW_BFEE_MU) 157 return; 158 159 rtw_chip_cfg_csi_rate(rtwdev, rtwdev->dm_info.min_rssi, 160 bf_info->cur_csi_rpt_rate, 161 fix_rate_enable, &new_csi_rate_idx); 162 163 if (new_csi_rate_idx != bf_info->cur_csi_rpt_rate) 164 bf_info->cur_csi_rpt_rate = new_csi_rate_idx; 165 } 166 167 static void rtw_vif_watch_dog_iter(void *data, u8 *mac, 168 struct ieee80211_vif *vif) 169 { 170 struct rtw_watch_dog_iter_data *iter_data = data; 171 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 172 173 if (vif->type == NL80211_IFTYPE_STATION) 174 if (vif->cfg.assoc) 175 iter_data->rtwvif = rtwvif; 176 177 rtw_dynamic_csi_rate(iter_data->rtwdev, rtwvif); 178 179 rtwvif->stats.tx_unicast = 0; 180 rtwvif->stats.rx_unicast = 0; 181 rtwvif->stats.tx_cnt = 0; 182 rtwvif->stats.rx_cnt = 0; 183 } 184 185 /* process TX/RX statistics periodically for hardware, 186 * the information helps hardware to enhance performance 187 */ 188 static void rtw_watch_dog_work(struct work_struct *work) 189 { 190 struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, 191 watch_dog_work.work); 192 struct rtw_traffic_stats *stats = &rtwdev->stats; 193 struct rtw_watch_dog_iter_data data = {}; 194 bool busy_traffic = test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags); 195 bool ps_active; 196 197 mutex_lock(&rtwdev->mutex); 198 199 if (!test_bit(RTW_FLAG_RUNNING, rtwdev->flags)) 200 goto unlock; 201 202 ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work, 203 RTW_WATCH_DOG_DELAY_TIME); 204 205 if (rtwdev->stats.tx_cnt > 100 || rtwdev->stats.rx_cnt > 100) 206 set_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags); 207 else 208 clear_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags); 209 210 rtw_coex_wl_status_check(rtwdev); 211 rtw_coex_query_bt_hid_list(rtwdev); 212 213 if (busy_traffic != test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags)) 214 rtw_coex_wl_status_change_notify(rtwdev, 0); 215 216 if (stats->tx_cnt > RTW_LPS_THRESHOLD || 217 stats->rx_cnt > RTW_LPS_THRESHOLD) 218 ps_active = true; 219 else 220 ps_active = false; 221 222 ewma_tp_add(&stats->tx_ewma_tp, 223 (u32)(stats->tx_unicast >> RTW_TP_SHIFT)); 224 ewma_tp_add(&stats->rx_ewma_tp, 225 (u32)(stats->rx_unicast >> RTW_TP_SHIFT)); 226 stats->tx_throughput = ewma_tp_read(&stats->tx_ewma_tp); 227 stats->rx_throughput = ewma_tp_read(&stats->rx_ewma_tp); 228 229 /* reset tx/rx statictics */ 230 stats->tx_unicast = 0; 231 stats->rx_unicast = 0; 232 stats->tx_cnt = 0; 233 stats->rx_cnt = 0; 234 235 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 236 goto unlock; 237 238 /* make sure BB/RF is working for dynamic mech */ 239 rtw_leave_lps(rtwdev); 240 241 rtw_phy_dynamic_mechanism(rtwdev); 242 243 data.rtwdev = rtwdev; 244 /* use atomic version to avoid taking local->iflist_mtx mutex */ 245 rtw_iterate_vifs_atomic(rtwdev, rtw_vif_watch_dog_iter, &data); 246 247 /* fw supports only one station associated to enter lps, if there are 248 * more than two stations associated to the AP, then we can not enter 249 * lps, because fw does not handle the overlapped beacon interval 250 * 251 * mac80211 should iterate vifs and determine if driver can enter 252 * ps by passing IEEE80211_CONF_PS to us, all we need to do is to 253 * get that vif and check if device is having traffic more than the 254 * threshold. 255 */ 256 if (rtwdev->ps_enabled && data.rtwvif && !ps_active && 257 !rtwdev->beacon_loss) 258 rtw_enter_lps(rtwdev, data.rtwvif->port); 259 260 rtwdev->watch_dog_cnt++; 261 262 unlock: 263 mutex_unlock(&rtwdev->mutex); 264 } 265 266 static void rtw_c2h_work(struct work_struct *work) 267 { 268 struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, c2h_work); 269 struct sk_buff *skb, *tmp; 270 271 skb_queue_walk_safe(&rtwdev->c2h_queue, skb, tmp) { 272 skb_unlink(skb, &rtwdev->c2h_queue); 273 rtw_fw_c2h_cmd_handle(rtwdev, skb); 274 dev_kfree_skb_any(skb); 275 } 276 } 277 278 static void rtw_ips_work(struct work_struct *work) 279 { 280 struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, ips_work); 281 282 mutex_lock(&rtwdev->mutex); 283 if (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE) 284 rtw_enter_ips(rtwdev); 285 mutex_unlock(&rtwdev->mutex); 286 } 287 288 static u8 rtw_acquire_macid(struct rtw_dev *rtwdev) 289 { 290 unsigned long mac_id; 291 292 mac_id = find_first_zero_bit(rtwdev->mac_id_map, RTW_MAX_MAC_ID_NUM); 293 if (mac_id < RTW_MAX_MAC_ID_NUM) 294 set_bit(mac_id, rtwdev->mac_id_map); 295 296 return mac_id; 297 } 298 299 int rtw_sta_add(struct rtw_dev *rtwdev, struct ieee80211_sta *sta, 300 struct ieee80211_vif *vif) 301 { 302 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 303 int i; 304 305 si->mac_id = rtw_acquire_macid(rtwdev); 306 if (si->mac_id >= RTW_MAX_MAC_ID_NUM) 307 return -ENOSPC; 308 309 si->sta = sta; 310 si->vif = vif; 311 si->init_ra_lv = 1; 312 ewma_rssi_init(&si->avg_rssi); 313 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) 314 rtw_txq_init(rtwdev, sta->txq[i]); 315 316 rtw_update_sta_info(rtwdev, si, true); 317 rtw_fw_media_status_report(rtwdev, si->mac_id, true); 318 319 rtwdev->sta_cnt++; 320 rtwdev->beacon_loss = false; 321 rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM joined with macid %d\n", 322 sta->addr, si->mac_id); 323 324 return 0; 325 } 326 327 void rtw_sta_remove(struct rtw_dev *rtwdev, struct ieee80211_sta *sta, 328 bool fw_exist) 329 { 330 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 331 int i; 332 333 rtw_release_macid(rtwdev, si->mac_id); 334 if (fw_exist) 335 rtw_fw_media_status_report(rtwdev, si->mac_id, false); 336 337 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) 338 rtw_txq_cleanup(rtwdev, sta->txq[i]); 339 340 kfree(si->mask); 341 342 rtwdev->sta_cnt--; 343 rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM with macid %d left\n", 344 sta->addr, si->mac_id); 345 } 346 347 struct rtw_fwcd_hdr { 348 u32 item; 349 u32 size; 350 u32 padding1; 351 u32 padding2; 352 } __packed; 353 354 static int rtw_fwcd_prep(struct rtw_dev *rtwdev) 355 { 356 const struct rtw_chip_info *chip = rtwdev->chip; 357 struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc; 358 const struct rtw_fwcd_segs *segs = chip->fwcd_segs; 359 u32 prep_size = chip->fw_rxff_size + sizeof(struct rtw_fwcd_hdr); 360 u8 i; 361 362 if (segs) { 363 prep_size += segs->num * sizeof(struct rtw_fwcd_hdr); 364 365 for (i = 0; i < segs->num; i++) 366 prep_size += segs->segs[i]; 367 } 368 369 desc->data = vmalloc(prep_size); 370 if (!desc->data) 371 return -ENOMEM; 372 373 desc->size = prep_size; 374 desc->next = desc->data; 375 376 return 0; 377 } 378 379 static u8 *rtw_fwcd_next(struct rtw_dev *rtwdev, u32 item, u32 size) 380 { 381 struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc; 382 struct rtw_fwcd_hdr *hdr; 383 u8 *next; 384 385 if (!desc->data) { 386 rtw_dbg(rtwdev, RTW_DBG_FW, "fwcd isn't prepared successfully\n"); 387 return NULL; 388 } 389 390 next = desc->next + sizeof(struct rtw_fwcd_hdr); 391 if (next - desc->data + size > desc->size) { 392 rtw_dbg(rtwdev, RTW_DBG_FW, "fwcd isn't prepared enough\n"); 393 return NULL; 394 } 395 396 hdr = (struct rtw_fwcd_hdr *)(desc->next); 397 hdr->item = item; 398 hdr->size = size; 399 hdr->padding1 = 0x01234567; 400 hdr->padding2 = 0x89abcdef; 401 desc->next = next + size; 402 403 return next; 404 } 405 406 static void rtw_fwcd_dump(struct rtw_dev *rtwdev) 407 { 408 struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc; 409 410 rtw_dbg(rtwdev, RTW_DBG_FW, "dump fwcd\n"); 411 412 /* Data will be freed after lifetime of device coredump. After calling 413 * dev_coredump, data is supposed to be handled by the device coredump 414 * framework. Note that a new dump will be discarded if a previous one 415 * hasn't been released yet. 416 */ 417 dev_coredumpv(rtwdev->dev, desc->data, desc->size, GFP_KERNEL); 418 } 419 420 static void rtw_fwcd_free(struct rtw_dev *rtwdev, bool free_self) 421 { 422 struct rtw_fwcd_desc *desc = &rtwdev->fw.fwcd_desc; 423 424 if (free_self) { 425 rtw_dbg(rtwdev, RTW_DBG_FW, "free fwcd by self\n"); 426 vfree(desc->data); 427 } 428 429 desc->data = NULL; 430 desc->next = NULL; 431 } 432 433 static int rtw_fw_dump_crash_log(struct rtw_dev *rtwdev) 434 { 435 u32 size = rtwdev->chip->fw_rxff_size; 436 u32 *buf; 437 u8 seq; 438 439 buf = (u32 *)rtw_fwcd_next(rtwdev, RTW_FWCD_TLV, size); 440 if (!buf) 441 return -ENOMEM; 442 443 if (rtw_fw_dump_fifo(rtwdev, RTW_FW_FIFO_SEL_RXBUF_FW, 0, size, buf)) { 444 rtw_dbg(rtwdev, RTW_DBG_FW, "dump fw fifo fail\n"); 445 return -EINVAL; 446 } 447 448 if (GET_FW_DUMP_LEN(buf) == 0) { 449 rtw_dbg(rtwdev, RTW_DBG_FW, "fw crash dump's length is 0\n"); 450 return -EINVAL; 451 } 452 453 seq = GET_FW_DUMP_SEQ(buf); 454 if (seq > 0) { 455 rtw_dbg(rtwdev, RTW_DBG_FW, 456 "fw crash dump's seq is wrong: %d\n", seq); 457 return -EINVAL; 458 } 459 460 return 0; 461 } 462 463 int rtw_dump_fw(struct rtw_dev *rtwdev, const u32 ocp_src, u32 size, 464 u32 fwcd_item) 465 { 466 u32 rxff = rtwdev->chip->fw_rxff_size; 467 u32 dump_size, done_size = 0; 468 u8 *buf; 469 int ret; 470 471 buf = rtw_fwcd_next(rtwdev, fwcd_item, size); 472 if (!buf) 473 return -ENOMEM; 474 475 while (size) { 476 dump_size = size > rxff ? rxff : size; 477 478 ret = rtw_ddma_to_fw_fifo(rtwdev, ocp_src + done_size, 479 dump_size); 480 if (ret) { 481 rtw_err(rtwdev, 482 "ddma fw 0x%x [+0x%x] to fw fifo fail\n", 483 ocp_src, done_size); 484 return ret; 485 } 486 487 ret = rtw_fw_dump_fifo(rtwdev, RTW_FW_FIFO_SEL_RXBUF_FW, 0, 488 dump_size, (u32 *)(buf + done_size)); 489 if (ret) { 490 rtw_err(rtwdev, 491 "dump fw 0x%x [+0x%x] from fw fifo fail\n", 492 ocp_src, done_size); 493 return ret; 494 } 495 496 size -= dump_size; 497 done_size += dump_size; 498 } 499 500 return 0; 501 } 502 EXPORT_SYMBOL(rtw_dump_fw); 503 504 int rtw_dump_reg(struct rtw_dev *rtwdev, const u32 addr, const u32 size) 505 { 506 u8 *buf; 507 u32 i; 508 509 if (addr & 0x3) { 510 WARN(1, "should be 4-byte aligned, addr = 0x%08x\n", addr); 511 return -EINVAL; 512 } 513 514 buf = rtw_fwcd_next(rtwdev, RTW_FWCD_REG, size); 515 if (!buf) 516 return -ENOMEM; 517 518 for (i = 0; i < size; i += 4) 519 *(u32 *)(buf + i) = rtw_read32(rtwdev, addr + i); 520 521 return 0; 522 } 523 EXPORT_SYMBOL(rtw_dump_reg); 524 525 void rtw_vif_assoc_changed(struct rtw_vif *rtwvif, 526 struct ieee80211_bss_conf *conf) 527 { 528 struct ieee80211_vif *vif = NULL; 529 530 if (conf) 531 vif = container_of(conf, struct ieee80211_vif, bss_conf); 532 533 if (conf && vif->cfg.assoc) { 534 rtwvif->aid = vif->cfg.aid; 535 rtwvif->net_type = RTW_NET_MGD_LINKED; 536 } else { 537 rtwvif->aid = 0; 538 rtwvif->net_type = RTW_NET_NO_LINK; 539 } 540 } 541 542 static void rtw_reset_key_iter(struct ieee80211_hw *hw, 543 struct ieee80211_vif *vif, 544 struct ieee80211_sta *sta, 545 struct ieee80211_key_conf *key, 546 void *data) 547 { 548 struct rtw_dev *rtwdev = (struct rtw_dev *)data; 549 struct rtw_sec_desc *sec = &rtwdev->sec; 550 551 rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx); 552 } 553 554 static void rtw_reset_sta_iter(void *data, struct ieee80211_sta *sta) 555 { 556 struct rtw_dev *rtwdev = (struct rtw_dev *)data; 557 558 if (rtwdev->sta_cnt == 0) { 559 rtw_warn(rtwdev, "sta count before reset should not be 0\n"); 560 return; 561 } 562 rtw_sta_remove(rtwdev, sta, false); 563 } 564 565 static void rtw_reset_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) 566 { 567 struct rtw_dev *rtwdev = (struct rtw_dev *)data; 568 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 569 570 rtw_bf_disassoc(rtwdev, vif, NULL); 571 rtw_vif_assoc_changed(rtwvif, NULL); 572 rtw_txq_cleanup(rtwdev, vif->txq); 573 } 574 575 void rtw_fw_recovery(struct rtw_dev *rtwdev) 576 { 577 if (!test_bit(RTW_FLAG_RESTARTING, rtwdev->flags)) 578 ieee80211_queue_work(rtwdev->hw, &rtwdev->fw_recovery_work); 579 } 580 581 static void __fw_recovery_work(struct rtw_dev *rtwdev) 582 { 583 int ret = 0; 584 585 set_bit(RTW_FLAG_RESTARTING, rtwdev->flags); 586 clear_bit(RTW_FLAG_RESTART_TRIGGERING, rtwdev->flags); 587 588 ret = rtw_fwcd_prep(rtwdev); 589 if (ret) 590 goto free; 591 ret = rtw_fw_dump_crash_log(rtwdev); 592 if (ret) 593 goto free; 594 ret = rtw_chip_dump_fw_crash(rtwdev); 595 if (ret) 596 goto free; 597 598 rtw_fwcd_dump(rtwdev); 599 free: 600 rtw_fwcd_free(rtwdev, !!ret); 601 rtw_write8(rtwdev, REG_MCU_TST_CFG, 0); 602 603 WARN(1, "firmware crash, start reset and recover\n"); 604 605 rcu_read_lock(); 606 rtw_iterate_keys_rcu(rtwdev, NULL, rtw_reset_key_iter, rtwdev); 607 rcu_read_unlock(); 608 rtw_iterate_stas_atomic(rtwdev, rtw_reset_sta_iter, rtwdev); 609 rtw_iterate_vifs_atomic(rtwdev, rtw_reset_vif_iter, rtwdev); 610 rtw_enter_ips(rtwdev); 611 } 612 613 static void rtw_fw_recovery_work(struct work_struct *work) 614 { 615 struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, 616 fw_recovery_work); 617 618 mutex_lock(&rtwdev->mutex); 619 __fw_recovery_work(rtwdev); 620 mutex_unlock(&rtwdev->mutex); 621 622 ieee80211_restart_hw(rtwdev->hw); 623 } 624 625 struct rtw_txq_ba_iter_data { 626 }; 627 628 static void rtw_txq_ba_iter(void *data, struct ieee80211_sta *sta) 629 { 630 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 631 int ret; 632 u8 tid; 633 634 tid = find_first_bit(si->tid_ba, IEEE80211_NUM_TIDS); 635 while (tid != IEEE80211_NUM_TIDS) { 636 clear_bit(tid, si->tid_ba); 637 ret = ieee80211_start_tx_ba_session(sta, tid, 0); 638 if (ret == -EINVAL) { 639 struct ieee80211_txq *txq; 640 struct rtw_txq *rtwtxq; 641 642 txq = sta->txq[tid]; 643 rtwtxq = (struct rtw_txq *)txq->drv_priv; 644 set_bit(RTW_TXQ_BLOCK_BA, &rtwtxq->flags); 645 } 646 647 tid = find_first_bit(si->tid_ba, IEEE80211_NUM_TIDS); 648 } 649 } 650 651 static void rtw_txq_ba_work(struct work_struct *work) 652 { 653 struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, ba_work); 654 struct rtw_txq_ba_iter_data data; 655 656 rtw_iterate_stas_atomic(rtwdev, rtw_txq_ba_iter, &data); 657 } 658 659 void rtw_set_rx_freq_band(struct rtw_rx_pkt_stat *pkt_stat, u8 channel) 660 { 661 if (IS_CH_2G_BAND(channel)) 662 pkt_stat->band = NL80211_BAND_2GHZ; 663 else if (IS_CH_5G_BAND(channel)) 664 pkt_stat->band = NL80211_BAND_5GHZ; 665 else 666 return; 667 668 pkt_stat->freq = ieee80211_channel_to_frequency(channel, pkt_stat->band); 669 } 670 EXPORT_SYMBOL(rtw_set_rx_freq_band); 671 672 void rtw_set_dtim_period(struct rtw_dev *rtwdev, int dtim_period) 673 { 674 rtw_write32_set(rtwdev, REG_TCR, BIT_TCR_UPDATE_TIMIE); 675 rtw_write8(rtwdev, REG_DTIM_COUNTER_ROOT, dtim_period - 1); 676 } 677 678 void rtw_update_channel(struct rtw_dev *rtwdev, u8 center_channel, 679 u8 primary_channel, enum rtw_supported_band band, 680 enum rtw_bandwidth bandwidth) 681 { 682 enum nl80211_band nl_band = rtw_hw_to_nl80211_band(band); 683 struct rtw_hal *hal = &rtwdev->hal; 684 u8 *cch_by_bw = hal->cch_by_bw; 685 u32 center_freq, primary_freq; 686 enum rtw_sar_bands sar_band; 687 u8 primary_channel_idx; 688 689 center_freq = ieee80211_channel_to_frequency(center_channel, nl_band); 690 primary_freq = ieee80211_channel_to_frequency(primary_channel, nl_band); 691 692 /* assign the center channel used while 20M bw is selected */ 693 cch_by_bw[RTW_CHANNEL_WIDTH_20] = primary_channel; 694 695 /* assign the center channel used while current bw is selected */ 696 cch_by_bw[bandwidth] = center_channel; 697 698 switch (bandwidth) { 699 case RTW_CHANNEL_WIDTH_20: 700 default: 701 primary_channel_idx = RTW_SC_DONT_CARE; 702 break; 703 case RTW_CHANNEL_WIDTH_40: 704 if (primary_freq > center_freq) 705 primary_channel_idx = RTW_SC_20_UPPER; 706 else 707 primary_channel_idx = RTW_SC_20_LOWER; 708 break; 709 case RTW_CHANNEL_WIDTH_80: 710 if (primary_freq > center_freq) { 711 if (primary_freq - center_freq == 10) 712 primary_channel_idx = RTW_SC_20_UPPER; 713 else 714 primary_channel_idx = RTW_SC_20_UPMOST; 715 716 /* assign the center channel used 717 * while 40M bw is selected 718 */ 719 cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_channel + 4; 720 } else { 721 if (center_freq - primary_freq == 10) 722 primary_channel_idx = RTW_SC_20_LOWER; 723 else 724 primary_channel_idx = RTW_SC_20_LOWEST; 725 726 /* assign the center channel used 727 * while 40M bw is selected 728 */ 729 cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_channel - 4; 730 } 731 break; 732 } 733 734 switch (center_channel) { 735 case 1 ... 14: 736 sar_band = RTW_SAR_BAND_0; 737 break; 738 case 36 ... 64: 739 sar_band = RTW_SAR_BAND_1; 740 break; 741 case 100 ... 144: 742 sar_band = RTW_SAR_BAND_3; 743 break; 744 case 149 ... 177: 745 sar_band = RTW_SAR_BAND_4; 746 break; 747 default: 748 WARN(1, "unknown ch(%u) to SAR band\n", center_channel); 749 sar_band = RTW_SAR_BAND_0; 750 break; 751 } 752 753 hal->current_primary_channel_index = primary_channel_idx; 754 hal->current_band_width = bandwidth; 755 hal->primary_channel = primary_channel; 756 hal->current_channel = center_channel; 757 hal->current_band_type = band; 758 hal->sar_band = sar_band; 759 } 760 761 void rtw_get_channel_params(struct cfg80211_chan_def *chandef, 762 struct rtw_channel_params *chan_params) 763 { 764 struct ieee80211_channel *channel = chandef->chan; 765 enum nl80211_chan_width width = chandef->width; 766 u32 primary_freq, center_freq; 767 u8 center_chan; 768 u8 bandwidth = RTW_CHANNEL_WIDTH_20; 769 770 center_chan = channel->hw_value; 771 primary_freq = channel->center_freq; 772 center_freq = chandef->center_freq1; 773 774 switch (width) { 775 case NL80211_CHAN_WIDTH_20_NOHT: 776 case NL80211_CHAN_WIDTH_20: 777 bandwidth = RTW_CHANNEL_WIDTH_20; 778 break; 779 case NL80211_CHAN_WIDTH_40: 780 bandwidth = RTW_CHANNEL_WIDTH_40; 781 if (primary_freq > center_freq) 782 center_chan -= 2; 783 else 784 center_chan += 2; 785 break; 786 case NL80211_CHAN_WIDTH_80: 787 bandwidth = RTW_CHANNEL_WIDTH_80; 788 if (primary_freq > center_freq) { 789 if (primary_freq - center_freq == 10) 790 center_chan -= 2; 791 else 792 center_chan -= 6; 793 } else { 794 if (center_freq - primary_freq == 10) 795 center_chan += 2; 796 else 797 center_chan += 6; 798 } 799 break; 800 default: 801 center_chan = 0; 802 break; 803 } 804 805 chan_params->center_chan = center_chan; 806 chan_params->bandwidth = bandwidth; 807 chan_params->primary_chan = channel->hw_value; 808 } 809 810 void rtw_set_channel(struct rtw_dev *rtwdev) 811 { 812 const struct rtw_chip_info *chip = rtwdev->chip; 813 struct ieee80211_hw *hw = rtwdev->hw; 814 struct rtw_hal *hal = &rtwdev->hal; 815 struct rtw_channel_params ch_param; 816 u8 center_chan, primary_chan, bandwidth, band; 817 818 rtw_get_channel_params(&hw->conf.chandef, &ch_param); 819 if (WARN(ch_param.center_chan == 0, "Invalid channel\n")) 820 return; 821 822 center_chan = ch_param.center_chan; 823 primary_chan = ch_param.primary_chan; 824 bandwidth = ch_param.bandwidth; 825 band = ch_param.center_chan > 14 ? RTW_BAND_5G : RTW_BAND_2G; 826 827 rtw_update_channel(rtwdev, center_chan, primary_chan, band, bandwidth); 828 829 chip->ops->set_channel(rtwdev, center_chan, bandwidth, 830 hal->current_primary_channel_index); 831 832 if (hal->current_band_type == RTW_BAND_5G) { 833 rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_5G); 834 } else { 835 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 836 rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_24G); 837 else 838 rtw_coex_switchband_notify(rtwdev, COEX_SWITCH_TO_24G_NOFORSCAN); 839 } 840 841 rtw_phy_set_tx_power_level(rtwdev, center_chan); 842 843 /* if the channel isn't set for scanning, we will do RF calibration 844 * in ieee80211_ops::mgd_prepare_tx(). Performing the calibration 845 * during scanning on each channel takes too long. 846 */ 847 if (!test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 848 rtwdev->need_rfk = true; 849 } 850 851 void rtw_chip_prepare_tx(struct rtw_dev *rtwdev) 852 { 853 const struct rtw_chip_info *chip = rtwdev->chip; 854 855 if (rtwdev->need_rfk) { 856 rtwdev->need_rfk = false; 857 chip->ops->phy_calibration(rtwdev); 858 } 859 } 860 861 static void rtw_vif_write_addr(struct rtw_dev *rtwdev, u32 start, u8 *addr) 862 { 863 int i; 864 865 for (i = 0; i < ETH_ALEN; i++) 866 rtw_write8(rtwdev, start + i, addr[i]); 867 } 868 869 void rtw_vif_port_config(struct rtw_dev *rtwdev, 870 struct rtw_vif *rtwvif, 871 u32 config) 872 { 873 u32 addr, mask; 874 875 if (config & PORT_SET_MAC_ADDR) { 876 addr = rtwvif->conf->mac_addr.addr; 877 rtw_vif_write_addr(rtwdev, addr, rtwvif->mac_addr); 878 } 879 if (config & PORT_SET_BSSID) { 880 addr = rtwvif->conf->bssid.addr; 881 rtw_vif_write_addr(rtwdev, addr, rtwvif->bssid); 882 } 883 if (config & PORT_SET_NET_TYPE) { 884 addr = rtwvif->conf->net_type.addr; 885 mask = rtwvif->conf->net_type.mask; 886 rtw_write32_mask(rtwdev, addr, mask, rtwvif->net_type); 887 } 888 if (config & PORT_SET_AID) { 889 addr = rtwvif->conf->aid.addr; 890 mask = rtwvif->conf->aid.mask; 891 rtw_write32_mask(rtwdev, addr, mask, rtwvif->aid); 892 } 893 if (config & PORT_SET_BCN_CTRL) { 894 addr = rtwvif->conf->bcn_ctrl.addr; 895 mask = rtwvif->conf->bcn_ctrl.mask; 896 rtw_write8_mask(rtwdev, addr, mask, rtwvif->bcn_ctrl); 897 } 898 } 899 900 static u8 hw_bw_cap_to_bitamp(u8 bw_cap) 901 { 902 u8 bw = 0; 903 904 switch (bw_cap) { 905 case EFUSE_HW_CAP_IGNORE: 906 case EFUSE_HW_CAP_SUPP_BW80: 907 bw |= BIT(RTW_CHANNEL_WIDTH_80); 908 fallthrough; 909 case EFUSE_HW_CAP_SUPP_BW40: 910 bw |= BIT(RTW_CHANNEL_WIDTH_40); 911 fallthrough; 912 default: 913 bw |= BIT(RTW_CHANNEL_WIDTH_20); 914 break; 915 } 916 917 return bw; 918 } 919 920 static void rtw_hw_config_rf_ant_num(struct rtw_dev *rtwdev, u8 hw_ant_num) 921 { 922 const struct rtw_chip_info *chip = rtwdev->chip; 923 struct rtw_hal *hal = &rtwdev->hal; 924 925 if (hw_ant_num == EFUSE_HW_CAP_IGNORE || 926 hw_ant_num >= hal->rf_path_num) 927 return; 928 929 switch (hw_ant_num) { 930 case 1: 931 hal->rf_type = RF_1T1R; 932 hal->rf_path_num = 1; 933 if (!chip->fix_rf_phy_num) 934 hal->rf_phy_num = hal->rf_path_num; 935 hal->antenna_tx = BB_PATH_A; 936 hal->antenna_rx = BB_PATH_A; 937 break; 938 default: 939 WARN(1, "invalid hw configuration from efuse\n"); 940 break; 941 } 942 } 943 944 static u64 get_vht_ra_mask(struct ieee80211_sta *sta) 945 { 946 u64 ra_mask = 0; 947 u16 mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.rx_mcs_map); 948 u8 vht_mcs_cap; 949 int i, nss; 950 951 /* 4SS, every two bits for MCS7/8/9 */ 952 for (i = 0, nss = 12; i < 4; i++, mcs_map >>= 2, nss += 10) { 953 vht_mcs_cap = mcs_map & 0x3; 954 switch (vht_mcs_cap) { 955 case 2: /* MCS9 */ 956 ra_mask |= 0x3ffULL << nss; 957 break; 958 case 1: /* MCS8 */ 959 ra_mask |= 0x1ffULL << nss; 960 break; 961 case 0: /* MCS7 */ 962 ra_mask |= 0x0ffULL << nss; 963 break; 964 default: 965 break; 966 } 967 } 968 969 return ra_mask; 970 } 971 972 static u8 get_rate_id(u8 wireless_set, enum rtw_bandwidth bw_mode, u8 tx_num) 973 { 974 u8 rate_id = 0; 975 976 switch (wireless_set) { 977 case WIRELESS_CCK: 978 rate_id = RTW_RATEID_B_20M; 979 break; 980 case WIRELESS_OFDM: 981 rate_id = RTW_RATEID_G; 982 break; 983 case WIRELESS_CCK | WIRELESS_OFDM: 984 rate_id = RTW_RATEID_BG; 985 break; 986 case WIRELESS_OFDM | WIRELESS_HT: 987 if (tx_num == 1) 988 rate_id = RTW_RATEID_GN_N1SS; 989 else if (tx_num == 2) 990 rate_id = RTW_RATEID_GN_N2SS; 991 else if (tx_num == 3) 992 rate_id = RTW_RATEID_ARFR5_N_3SS; 993 break; 994 case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_HT: 995 if (bw_mode == RTW_CHANNEL_WIDTH_40) { 996 if (tx_num == 1) 997 rate_id = RTW_RATEID_BGN_40M_1SS; 998 else if (tx_num == 2) 999 rate_id = RTW_RATEID_BGN_40M_2SS; 1000 else if (tx_num == 3) 1001 rate_id = RTW_RATEID_ARFR5_N_3SS; 1002 else if (tx_num == 4) 1003 rate_id = RTW_RATEID_ARFR7_N_4SS; 1004 } else { 1005 if (tx_num == 1) 1006 rate_id = RTW_RATEID_BGN_20M_1SS; 1007 else if (tx_num == 2) 1008 rate_id = RTW_RATEID_BGN_20M_2SS; 1009 else if (tx_num == 3) 1010 rate_id = RTW_RATEID_ARFR5_N_3SS; 1011 else if (tx_num == 4) 1012 rate_id = RTW_RATEID_ARFR7_N_4SS; 1013 } 1014 break; 1015 case WIRELESS_OFDM | WIRELESS_VHT: 1016 if (tx_num == 1) 1017 rate_id = RTW_RATEID_ARFR1_AC_1SS; 1018 else if (tx_num == 2) 1019 rate_id = RTW_RATEID_ARFR0_AC_2SS; 1020 else if (tx_num == 3) 1021 rate_id = RTW_RATEID_ARFR4_AC_3SS; 1022 else if (tx_num == 4) 1023 rate_id = RTW_RATEID_ARFR6_AC_4SS; 1024 break; 1025 case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_VHT: 1026 if (bw_mode >= RTW_CHANNEL_WIDTH_80) { 1027 if (tx_num == 1) 1028 rate_id = RTW_RATEID_ARFR1_AC_1SS; 1029 else if (tx_num == 2) 1030 rate_id = RTW_RATEID_ARFR0_AC_2SS; 1031 else if (tx_num == 3) 1032 rate_id = RTW_RATEID_ARFR4_AC_3SS; 1033 else if (tx_num == 4) 1034 rate_id = RTW_RATEID_ARFR6_AC_4SS; 1035 } else { 1036 if (tx_num == 1) 1037 rate_id = RTW_RATEID_ARFR2_AC_2G_1SS; 1038 else if (tx_num == 2) 1039 rate_id = RTW_RATEID_ARFR3_AC_2G_2SS; 1040 else if (tx_num == 3) 1041 rate_id = RTW_RATEID_ARFR4_AC_3SS; 1042 else if (tx_num == 4) 1043 rate_id = RTW_RATEID_ARFR6_AC_4SS; 1044 } 1045 break; 1046 default: 1047 break; 1048 } 1049 1050 return rate_id; 1051 } 1052 1053 #define RA_MASK_CCK_RATES 0x0000f 1054 #define RA_MASK_OFDM_RATES 0x00ff0 1055 #define RA_MASK_HT_RATES_1SS (0xff000ULL << 0) 1056 #define RA_MASK_HT_RATES_2SS (0xff000ULL << 8) 1057 #define RA_MASK_HT_RATES_3SS (0xff000ULL << 16) 1058 #define RA_MASK_HT_RATES (RA_MASK_HT_RATES_1SS | \ 1059 RA_MASK_HT_RATES_2SS | \ 1060 RA_MASK_HT_RATES_3SS) 1061 #define RA_MASK_VHT_RATES_1SS (0x3ff000ULL << 0) 1062 #define RA_MASK_VHT_RATES_2SS (0x3ff000ULL << 10) 1063 #define RA_MASK_VHT_RATES_3SS (0x3ff000ULL << 20) 1064 #define RA_MASK_VHT_RATES (RA_MASK_VHT_RATES_1SS | \ 1065 RA_MASK_VHT_RATES_2SS | \ 1066 RA_MASK_VHT_RATES_3SS) 1067 #define RA_MASK_CCK_IN_BG 0x00005 1068 #define RA_MASK_CCK_IN_HT 0x00005 1069 #define RA_MASK_CCK_IN_VHT 0x00005 1070 #define RA_MASK_OFDM_IN_VHT 0x00010 1071 #define RA_MASK_OFDM_IN_HT_2G 0x00010 1072 #define RA_MASK_OFDM_IN_HT_5G 0x00030 1073 1074 static u64 rtw_rate_mask_rssi(struct rtw_sta_info *si, u8 wireless_set) 1075 { 1076 u8 rssi_level = si->rssi_level; 1077 1078 if (wireless_set == WIRELESS_CCK) 1079 return 0xffffffffffffffffULL; 1080 1081 if (rssi_level == 0) 1082 return 0xffffffffffffffffULL; 1083 else if (rssi_level == 1) 1084 return 0xfffffffffffffff0ULL; 1085 else if (rssi_level == 2) 1086 return 0xffffffffffffefe0ULL; 1087 else if (rssi_level == 3) 1088 return 0xffffffffffffcfc0ULL; 1089 else if (rssi_level == 4) 1090 return 0xffffffffffff8f80ULL; 1091 else 1092 return 0xffffffffffff0f00ULL; 1093 } 1094 1095 static u64 rtw_rate_mask_recover(u64 ra_mask, u64 ra_mask_bak) 1096 { 1097 if ((ra_mask & ~(RA_MASK_CCK_RATES | RA_MASK_OFDM_RATES)) == 0) 1098 ra_mask |= (ra_mask_bak & ~(RA_MASK_CCK_RATES | RA_MASK_OFDM_RATES)); 1099 1100 if (ra_mask == 0) 1101 ra_mask |= (ra_mask_bak & (RA_MASK_CCK_RATES | RA_MASK_OFDM_RATES)); 1102 1103 return ra_mask; 1104 } 1105 1106 static u64 rtw_rate_mask_cfg(struct rtw_dev *rtwdev, struct rtw_sta_info *si, 1107 u64 ra_mask, bool is_vht_enable) 1108 { 1109 struct rtw_hal *hal = &rtwdev->hal; 1110 const struct cfg80211_bitrate_mask *mask = si->mask; 1111 u64 cfg_mask = GENMASK_ULL(63, 0); 1112 u8 band; 1113 1114 if (!si->use_cfg_mask) 1115 return ra_mask; 1116 1117 band = hal->current_band_type; 1118 if (band == RTW_BAND_2G) { 1119 band = NL80211_BAND_2GHZ; 1120 cfg_mask = mask->control[band].legacy; 1121 } else if (band == RTW_BAND_5G) { 1122 band = NL80211_BAND_5GHZ; 1123 cfg_mask = u64_encode_bits(mask->control[band].legacy, 1124 RA_MASK_OFDM_RATES); 1125 } 1126 1127 if (!is_vht_enable) { 1128 if (ra_mask & RA_MASK_HT_RATES_1SS) 1129 cfg_mask |= u64_encode_bits(mask->control[band].ht_mcs[0], 1130 RA_MASK_HT_RATES_1SS); 1131 if (ra_mask & RA_MASK_HT_RATES_2SS) 1132 cfg_mask |= u64_encode_bits(mask->control[band].ht_mcs[1], 1133 RA_MASK_HT_RATES_2SS); 1134 } else { 1135 if (ra_mask & RA_MASK_VHT_RATES_1SS) 1136 cfg_mask |= u64_encode_bits(mask->control[band].vht_mcs[0], 1137 RA_MASK_VHT_RATES_1SS); 1138 if (ra_mask & RA_MASK_VHT_RATES_2SS) 1139 cfg_mask |= u64_encode_bits(mask->control[band].vht_mcs[1], 1140 RA_MASK_VHT_RATES_2SS); 1141 } 1142 1143 ra_mask &= cfg_mask; 1144 1145 return ra_mask; 1146 } 1147 1148 void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si, 1149 bool reset_ra_mask) 1150 { 1151 struct rtw_dm_info *dm_info = &rtwdev->dm_info; 1152 struct ieee80211_sta *sta = si->sta; 1153 struct rtw_efuse *efuse = &rtwdev->efuse; 1154 struct rtw_hal *hal = &rtwdev->hal; 1155 u8 wireless_set; 1156 u8 bw_mode; 1157 u8 rate_id; 1158 u8 rf_type = RF_1T1R; 1159 u8 stbc_en = 0; 1160 u8 ldpc_en = 0; 1161 u8 tx_num = 1; 1162 u64 ra_mask = 0; 1163 u64 ra_mask_bak = 0; 1164 bool is_vht_enable = false; 1165 bool is_support_sgi = false; 1166 1167 if (sta->deflink.vht_cap.vht_supported) { 1168 is_vht_enable = true; 1169 ra_mask |= get_vht_ra_mask(sta); 1170 if (sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK) 1171 stbc_en = VHT_STBC_EN; 1172 if (sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC) 1173 ldpc_en = VHT_LDPC_EN; 1174 } else if (sta->deflink.ht_cap.ht_supported) { 1175 ra_mask |= (sta->deflink.ht_cap.mcs.rx_mask[1] << 20) | 1176 (sta->deflink.ht_cap.mcs.rx_mask[0] << 12); 1177 if (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_RX_STBC) 1178 stbc_en = HT_STBC_EN; 1179 if (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING) 1180 ldpc_en = HT_LDPC_EN; 1181 } 1182 1183 if (efuse->hw_cap.nss == 1 || rtwdev->hal.txrx_1ss) 1184 ra_mask &= RA_MASK_VHT_RATES_1SS | RA_MASK_HT_RATES_1SS; 1185 1186 if (hal->current_band_type == RTW_BAND_5G) { 1187 ra_mask |= (u64)sta->deflink.supp_rates[NL80211_BAND_5GHZ] << 4; 1188 ra_mask_bak = ra_mask; 1189 if (sta->deflink.vht_cap.vht_supported) { 1190 ra_mask &= RA_MASK_VHT_RATES | RA_MASK_OFDM_IN_VHT; 1191 wireless_set = WIRELESS_OFDM | WIRELESS_VHT; 1192 } else if (sta->deflink.ht_cap.ht_supported) { 1193 ra_mask &= RA_MASK_HT_RATES | RA_MASK_OFDM_IN_HT_5G; 1194 wireless_set = WIRELESS_OFDM | WIRELESS_HT; 1195 } else { 1196 wireless_set = WIRELESS_OFDM; 1197 } 1198 dm_info->rrsr_val_init = RRSR_INIT_5G; 1199 } else if (hal->current_band_type == RTW_BAND_2G) { 1200 ra_mask |= sta->deflink.supp_rates[NL80211_BAND_2GHZ]; 1201 ra_mask_bak = ra_mask; 1202 if (sta->deflink.vht_cap.vht_supported) { 1203 ra_mask &= RA_MASK_VHT_RATES | RA_MASK_CCK_IN_VHT | 1204 RA_MASK_OFDM_IN_VHT; 1205 wireless_set = WIRELESS_CCK | WIRELESS_OFDM | 1206 WIRELESS_HT | WIRELESS_VHT; 1207 } else if (sta->deflink.ht_cap.ht_supported) { 1208 ra_mask &= RA_MASK_HT_RATES | RA_MASK_CCK_IN_HT | 1209 RA_MASK_OFDM_IN_HT_2G; 1210 wireless_set = WIRELESS_CCK | WIRELESS_OFDM | 1211 WIRELESS_HT; 1212 } else if (sta->deflink.supp_rates[0] <= 0xf) { 1213 wireless_set = WIRELESS_CCK; 1214 } else { 1215 ra_mask &= RA_MASK_OFDM_RATES | RA_MASK_CCK_IN_BG; 1216 wireless_set = WIRELESS_CCK | WIRELESS_OFDM; 1217 } 1218 dm_info->rrsr_val_init = RRSR_INIT_2G; 1219 } else { 1220 rtw_err(rtwdev, "Unknown band type\n"); 1221 ra_mask_bak = ra_mask; 1222 wireless_set = 0; 1223 } 1224 1225 switch (sta->deflink.bandwidth) { 1226 case IEEE80211_STA_RX_BW_80: 1227 bw_mode = RTW_CHANNEL_WIDTH_80; 1228 is_support_sgi = sta->deflink.vht_cap.vht_supported && 1229 (sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80); 1230 break; 1231 case IEEE80211_STA_RX_BW_40: 1232 bw_mode = RTW_CHANNEL_WIDTH_40; 1233 is_support_sgi = sta->deflink.ht_cap.ht_supported && 1234 (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40); 1235 break; 1236 default: 1237 bw_mode = RTW_CHANNEL_WIDTH_20; 1238 is_support_sgi = sta->deflink.ht_cap.ht_supported && 1239 (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20); 1240 break; 1241 } 1242 1243 if (sta->deflink.vht_cap.vht_supported && ra_mask & 0xffc00000) { 1244 tx_num = 2; 1245 rf_type = RF_2T2R; 1246 } else if (sta->deflink.ht_cap.ht_supported && ra_mask & 0xfff00000) { 1247 tx_num = 2; 1248 rf_type = RF_2T2R; 1249 } 1250 1251 rate_id = get_rate_id(wireless_set, bw_mode, tx_num); 1252 1253 ra_mask &= rtw_rate_mask_rssi(si, wireless_set); 1254 ra_mask = rtw_rate_mask_recover(ra_mask, ra_mask_bak); 1255 ra_mask = rtw_rate_mask_cfg(rtwdev, si, ra_mask, is_vht_enable); 1256 1257 si->bw_mode = bw_mode; 1258 si->stbc_en = stbc_en; 1259 si->ldpc_en = ldpc_en; 1260 si->rf_type = rf_type; 1261 si->wireless_set = wireless_set; 1262 si->sgi_enable = is_support_sgi; 1263 si->vht_enable = is_vht_enable; 1264 si->ra_mask = ra_mask; 1265 si->rate_id = rate_id; 1266 1267 rtw_fw_send_ra_info(rtwdev, si, reset_ra_mask); 1268 } 1269 1270 static int rtw_wait_firmware_completion(struct rtw_dev *rtwdev) 1271 { 1272 const struct rtw_chip_info *chip = rtwdev->chip; 1273 struct rtw_fw_state *fw; 1274 1275 fw = &rtwdev->fw; 1276 wait_for_completion(&fw->completion); 1277 if (!fw->firmware) 1278 return -EINVAL; 1279 1280 if (chip->wow_fw_name) { 1281 fw = &rtwdev->wow_fw; 1282 wait_for_completion(&fw->completion); 1283 if (!fw->firmware) 1284 return -EINVAL; 1285 } 1286 1287 return 0; 1288 } 1289 1290 static enum rtw_lps_deep_mode rtw_update_lps_deep_mode(struct rtw_dev *rtwdev, 1291 struct rtw_fw_state *fw) 1292 { 1293 const struct rtw_chip_info *chip = rtwdev->chip; 1294 1295 if (rtw_disable_lps_deep_mode || !chip->lps_deep_mode_supported || 1296 !fw->feature) 1297 return LPS_DEEP_MODE_NONE; 1298 1299 if ((chip->lps_deep_mode_supported & BIT(LPS_DEEP_MODE_PG)) && 1300 rtw_fw_feature_check(fw, FW_FEATURE_PG)) 1301 return LPS_DEEP_MODE_PG; 1302 1303 if ((chip->lps_deep_mode_supported & BIT(LPS_DEEP_MODE_LCLK)) && 1304 rtw_fw_feature_check(fw, FW_FEATURE_LCLK)) 1305 return LPS_DEEP_MODE_LCLK; 1306 1307 return LPS_DEEP_MODE_NONE; 1308 } 1309 1310 static int rtw_power_on(struct rtw_dev *rtwdev) 1311 { 1312 const struct rtw_chip_info *chip = rtwdev->chip; 1313 struct rtw_fw_state *fw = &rtwdev->fw; 1314 bool wifi_only; 1315 int ret; 1316 1317 ret = rtw_hci_setup(rtwdev); 1318 if (ret) { 1319 rtw_err(rtwdev, "failed to setup hci\n"); 1320 goto err; 1321 } 1322 1323 /* power on MAC before firmware downloaded */ 1324 ret = rtw_mac_power_on(rtwdev); 1325 if (ret) { 1326 rtw_err(rtwdev, "failed to power on mac\n"); 1327 goto err; 1328 } 1329 1330 ret = rtw_wait_firmware_completion(rtwdev); 1331 if (ret) { 1332 rtw_err(rtwdev, "failed to wait firmware completion\n"); 1333 goto err_off; 1334 } 1335 1336 ret = rtw_download_firmware(rtwdev, fw); 1337 if (ret) { 1338 rtw_err(rtwdev, "failed to download firmware\n"); 1339 goto err_off; 1340 } 1341 1342 /* config mac after firmware downloaded */ 1343 ret = rtw_mac_init(rtwdev); 1344 if (ret) { 1345 rtw_err(rtwdev, "failed to configure mac\n"); 1346 goto err_off; 1347 } 1348 1349 chip->ops->phy_set_param(rtwdev); 1350 1351 ret = rtw_hci_start(rtwdev); 1352 if (ret) { 1353 rtw_err(rtwdev, "failed to start hci\n"); 1354 goto err_off; 1355 } 1356 1357 /* send H2C after HCI has started */ 1358 rtw_fw_send_general_info(rtwdev); 1359 rtw_fw_send_phydm_info(rtwdev); 1360 1361 wifi_only = !rtwdev->efuse.btcoex; 1362 rtw_coex_power_on_setting(rtwdev); 1363 rtw_coex_init_hw_config(rtwdev, wifi_only); 1364 1365 return 0; 1366 1367 err_off: 1368 rtw_mac_power_off(rtwdev); 1369 1370 err: 1371 return ret; 1372 } 1373 1374 void rtw_core_fw_scan_notify(struct rtw_dev *rtwdev, bool start) 1375 { 1376 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_NOTIFY_SCAN)) 1377 return; 1378 1379 if (start) { 1380 rtw_fw_scan_notify(rtwdev, true); 1381 } else { 1382 reinit_completion(&rtwdev->fw_scan_density); 1383 rtw_fw_scan_notify(rtwdev, false); 1384 if (!wait_for_completion_timeout(&rtwdev->fw_scan_density, 1385 SCAN_NOTIFY_TIMEOUT)) 1386 rtw_warn(rtwdev, "firmware failed to report density after scan\n"); 1387 } 1388 } 1389 1390 void rtw_core_scan_start(struct rtw_dev *rtwdev, struct rtw_vif *rtwvif, 1391 const u8 *mac_addr, bool hw_scan) 1392 { 1393 u32 config = 0; 1394 int ret = 0; 1395 1396 rtw_leave_lps(rtwdev); 1397 1398 if (hw_scan && (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE)) { 1399 ret = rtw_leave_ips(rtwdev); 1400 if (ret) { 1401 rtw_err(rtwdev, "failed to leave idle state\n"); 1402 return; 1403 } 1404 } 1405 1406 ether_addr_copy(rtwvif->mac_addr, mac_addr); 1407 config |= PORT_SET_MAC_ADDR; 1408 rtw_vif_port_config(rtwdev, rtwvif, config); 1409 1410 rtw_coex_scan_notify(rtwdev, COEX_SCAN_START); 1411 rtw_core_fw_scan_notify(rtwdev, true); 1412 1413 set_bit(RTW_FLAG_DIG_DISABLE, rtwdev->flags); 1414 set_bit(RTW_FLAG_SCANNING, rtwdev->flags); 1415 } 1416 1417 void rtw_core_scan_complete(struct rtw_dev *rtwdev, struct ieee80211_vif *vif, 1418 bool hw_scan) 1419 { 1420 struct rtw_vif *rtwvif = vif ? (struct rtw_vif *)vif->drv_priv : NULL; 1421 u32 config = 0; 1422 1423 if (!rtwvif) 1424 return; 1425 1426 clear_bit(RTW_FLAG_SCANNING, rtwdev->flags); 1427 clear_bit(RTW_FLAG_DIG_DISABLE, rtwdev->flags); 1428 1429 rtw_core_fw_scan_notify(rtwdev, false); 1430 1431 ether_addr_copy(rtwvif->mac_addr, vif->addr); 1432 config |= PORT_SET_MAC_ADDR; 1433 rtw_vif_port_config(rtwdev, rtwvif, config); 1434 1435 rtw_coex_scan_notify(rtwdev, COEX_SCAN_FINISH); 1436 1437 if (hw_scan && (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE)) 1438 ieee80211_queue_work(rtwdev->hw, &rtwdev->ips_work); 1439 } 1440 1441 int rtw_core_start(struct rtw_dev *rtwdev) 1442 { 1443 int ret; 1444 1445 ret = rtw_power_on(rtwdev); 1446 if (ret) 1447 return ret; 1448 1449 rtw_sec_enable_sec_engine(rtwdev); 1450 1451 rtwdev->lps_conf.deep_mode = rtw_update_lps_deep_mode(rtwdev, &rtwdev->fw); 1452 rtwdev->lps_conf.wow_deep_mode = rtw_update_lps_deep_mode(rtwdev, &rtwdev->wow_fw); 1453 1454 /* rcr reset after powered on */ 1455 rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr); 1456 1457 ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work, 1458 RTW_WATCH_DOG_DELAY_TIME); 1459 1460 set_bit(RTW_FLAG_RUNNING, rtwdev->flags); 1461 1462 return 0; 1463 } 1464 1465 static void rtw_power_off(struct rtw_dev *rtwdev) 1466 { 1467 rtw_hci_stop(rtwdev); 1468 rtw_coex_power_off_setting(rtwdev); 1469 rtw_mac_power_off(rtwdev); 1470 } 1471 1472 void rtw_core_stop(struct rtw_dev *rtwdev) 1473 { 1474 struct rtw_coex *coex = &rtwdev->coex; 1475 1476 clear_bit(RTW_FLAG_RUNNING, rtwdev->flags); 1477 clear_bit(RTW_FLAG_FW_RUNNING, rtwdev->flags); 1478 1479 mutex_unlock(&rtwdev->mutex); 1480 1481 cancel_work_sync(&rtwdev->c2h_work); 1482 cancel_work_sync(&rtwdev->update_beacon_work); 1483 cancel_delayed_work_sync(&rtwdev->watch_dog_work); 1484 cancel_delayed_work_sync(&coex->bt_relink_work); 1485 cancel_delayed_work_sync(&coex->bt_reenable_work); 1486 cancel_delayed_work_sync(&coex->defreeze_work); 1487 cancel_delayed_work_sync(&coex->wl_remain_work); 1488 cancel_delayed_work_sync(&coex->bt_remain_work); 1489 cancel_delayed_work_sync(&coex->wl_connecting_work); 1490 cancel_delayed_work_sync(&coex->bt_multi_link_remain_work); 1491 cancel_delayed_work_sync(&coex->wl_ccklock_work); 1492 1493 mutex_lock(&rtwdev->mutex); 1494 1495 rtw_power_off(rtwdev); 1496 } 1497 1498 static void rtw_init_ht_cap(struct rtw_dev *rtwdev, 1499 struct ieee80211_sta_ht_cap *ht_cap) 1500 { 1501 const struct rtw_chip_info *chip = rtwdev->chip; 1502 struct rtw_efuse *efuse = &rtwdev->efuse; 1503 1504 ht_cap->ht_supported = true; 1505 ht_cap->cap = 0; 1506 ht_cap->cap |= IEEE80211_HT_CAP_SGI_20 | 1507 IEEE80211_HT_CAP_MAX_AMSDU | 1508 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); 1509 1510 if (rtw_chip_has_rx_ldpc(rtwdev)) 1511 ht_cap->cap |= IEEE80211_HT_CAP_LDPC_CODING; 1512 if (rtw_chip_has_tx_stbc(rtwdev)) 1513 ht_cap->cap |= IEEE80211_HT_CAP_TX_STBC; 1514 1515 if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_40)) 1516 ht_cap->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 1517 IEEE80211_HT_CAP_DSSSCCK40 | 1518 IEEE80211_HT_CAP_SGI_40; 1519 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 1520 ht_cap->ampdu_density = chip->ampdu_density; 1521 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 1522 if (efuse->hw_cap.nss > 1) { 1523 ht_cap->mcs.rx_mask[0] = 0xFF; 1524 ht_cap->mcs.rx_mask[1] = 0xFF; 1525 ht_cap->mcs.rx_mask[4] = 0x01; 1526 ht_cap->mcs.rx_highest = cpu_to_le16(300); 1527 } else { 1528 ht_cap->mcs.rx_mask[0] = 0xFF; 1529 ht_cap->mcs.rx_mask[1] = 0x00; 1530 ht_cap->mcs.rx_mask[4] = 0x01; 1531 ht_cap->mcs.rx_highest = cpu_to_le16(150); 1532 } 1533 } 1534 1535 static void rtw_init_vht_cap(struct rtw_dev *rtwdev, 1536 struct ieee80211_sta_vht_cap *vht_cap) 1537 { 1538 struct rtw_efuse *efuse = &rtwdev->efuse; 1539 u16 mcs_map; 1540 __le16 highest; 1541 1542 if (efuse->hw_cap.ptcl != EFUSE_HW_CAP_IGNORE && 1543 efuse->hw_cap.ptcl != EFUSE_HW_CAP_PTCL_VHT) 1544 return; 1545 1546 vht_cap->vht_supported = true; 1547 vht_cap->cap = IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 1548 IEEE80211_VHT_CAP_SHORT_GI_80 | 1549 IEEE80211_VHT_CAP_RXSTBC_1 | 1550 IEEE80211_VHT_CAP_HTC_VHT | 1551 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 1552 0; 1553 if (rtwdev->hal.rf_path_num > 1) 1554 vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC; 1555 vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 1556 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; 1557 vht_cap->cap |= (rtwdev->hal.bfee_sts_cap << 1558 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 1559 1560 if (rtw_chip_has_rx_ldpc(rtwdev)) 1561 vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC; 1562 1563 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 1564 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 1565 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 1566 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 1567 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 1568 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 1569 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 1570 if (efuse->hw_cap.nss > 1) { 1571 highest = cpu_to_le16(780); 1572 mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << 2; 1573 } else { 1574 highest = cpu_to_le16(390); 1575 mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << 2; 1576 } 1577 1578 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 1579 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 1580 vht_cap->vht_mcs.rx_highest = highest; 1581 vht_cap->vht_mcs.tx_highest = highest; 1582 } 1583 1584 static u16 rtw_get_max_scan_ie_len(struct rtw_dev *rtwdev) 1585 { 1586 u16 len; 1587 1588 len = rtwdev->chip->max_scan_ie_len; 1589 1590 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD) && 1591 rtwdev->chip->id == RTW_CHIP_TYPE_8822C) 1592 len = IEEE80211_MAX_DATA_LEN; 1593 else if (rtw_fw_feature_ext_check(&rtwdev->fw, FW_FEATURE_EXT_OLD_PAGE_NUM)) 1594 len -= RTW_OLD_PROBE_PG_CNT * TX_PAGE_SIZE; 1595 1596 return len; 1597 } 1598 1599 static void rtw_set_supported_band(struct ieee80211_hw *hw, 1600 const struct rtw_chip_info *chip) 1601 { 1602 struct rtw_dev *rtwdev = hw->priv; 1603 struct ieee80211_supported_band *sband; 1604 1605 if (chip->band & RTW_BAND_2G) { 1606 sband = kmemdup(&rtw_band_2ghz, sizeof(*sband), GFP_KERNEL); 1607 if (!sband) 1608 goto err_out; 1609 if (chip->ht_supported) 1610 rtw_init_ht_cap(rtwdev, &sband->ht_cap); 1611 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; 1612 } 1613 1614 if (chip->band & RTW_BAND_5G) { 1615 sband = kmemdup(&rtw_band_5ghz, sizeof(*sband), GFP_KERNEL); 1616 if (!sband) 1617 goto err_out; 1618 if (chip->ht_supported) 1619 rtw_init_ht_cap(rtwdev, &sband->ht_cap); 1620 if (chip->vht_supported) 1621 rtw_init_vht_cap(rtwdev, &sband->vht_cap); 1622 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; 1623 } 1624 1625 return; 1626 1627 err_out: 1628 rtw_err(rtwdev, "failed to set supported band\n"); 1629 } 1630 1631 static void rtw_unset_supported_band(struct ieee80211_hw *hw, 1632 const struct rtw_chip_info *chip) 1633 { 1634 kfree(hw->wiphy->bands[NL80211_BAND_2GHZ]); 1635 kfree(hw->wiphy->bands[NL80211_BAND_5GHZ]); 1636 } 1637 1638 static void rtw_vif_smps_iter(void *data, u8 *mac, 1639 struct ieee80211_vif *vif) 1640 { 1641 struct rtw_dev *rtwdev = (struct rtw_dev *)data; 1642 1643 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) 1644 return; 1645 1646 if (rtwdev->hal.txrx_1ss) 1647 ieee80211_request_smps(vif, 0, IEEE80211_SMPS_STATIC); 1648 else 1649 ieee80211_request_smps(vif, 0, IEEE80211_SMPS_OFF); 1650 } 1651 1652 void rtw_set_txrx_1ss(struct rtw_dev *rtwdev, bool txrx_1ss) 1653 { 1654 const struct rtw_chip_info *chip = rtwdev->chip; 1655 struct rtw_hal *hal = &rtwdev->hal; 1656 1657 if (!chip->ops->config_txrx_mode || rtwdev->hal.txrx_1ss == txrx_1ss) 1658 return; 1659 1660 rtwdev->hal.txrx_1ss = txrx_1ss; 1661 if (txrx_1ss) 1662 chip->ops->config_txrx_mode(rtwdev, BB_PATH_A, BB_PATH_A, false); 1663 else 1664 chip->ops->config_txrx_mode(rtwdev, hal->antenna_tx, 1665 hal->antenna_rx, false); 1666 rtw_iterate_vifs_atomic(rtwdev, rtw_vif_smps_iter, rtwdev); 1667 } 1668 1669 static void __update_firmware_feature(struct rtw_dev *rtwdev, 1670 struct rtw_fw_state *fw) 1671 { 1672 u32 feature; 1673 const struct rtw_fw_hdr *fw_hdr = 1674 (const struct rtw_fw_hdr *)fw->firmware->data; 1675 1676 feature = le32_to_cpu(fw_hdr->feature); 1677 fw->feature = feature & FW_FEATURE_SIG ? feature : 0; 1678 1679 if (rtwdev->chip->id == RTW_CHIP_TYPE_8822C && 1680 RTW_FW_SUIT_VER_CODE(rtwdev->fw) < RTW_FW_VER_CODE(9, 9, 13)) 1681 fw->feature_ext |= FW_FEATURE_EXT_OLD_PAGE_NUM; 1682 } 1683 1684 static void __update_firmware_info(struct rtw_dev *rtwdev, 1685 struct rtw_fw_state *fw) 1686 { 1687 const struct rtw_fw_hdr *fw_hdr = 1688 (const struct rtw_fw_hdr *)fw->firmware->data; 1689 1690 fw->h2c_version = le16_to_cpu(fw_hdr->h2c_fmt_ver); 1691 fw->version = le16_to_cpu(fw_hdr->version); 1692 fw->sub_version = fw_hdr->subversion; 1693 fw->sub_index = fw_hdr->subindex; 1694 1695 __update_firmware_feature(rtwdev, fw); 1696 } 1697 1698 static void __update_firmware_info_legacy(struct rtw_dev *rtwdev, 1699 struct rtw_fw_state *fw) 1700 { 1701 struct rtw_fw_hdr_legacy *legacy = 1702 (struct rtw_fw_hdr_legacy *)fw->firmware->data; 1703 1704 fw->h2c_version = 0; 1705 fw->version = le16_to_cpu(legacy->version); 1706 fw->sub_version = legacy->subversion1; 1707 fw->sub_index = legacy->subversion2; 1708 } 1709 1710 static void update_firmware_info(struct rtw_dev *rtwdev, 1711 struct rtw_fw_state *fw) 1712 { 1713 if (rtw_chip_wcpu_11n(rtwdev)) 1714 __update_firmware_info_legacy(rtwdev, fw); 1715 else 1716 __update_firmware_info(rtwdev, fw); 1717 } 1718 1719 static void rtw_load_firmware_cb(const struct firmware *firmware, void *context) 1720 { 1721 struct rtw_fw_state *fw = context; 1722 struct rtw_dev *rtwdev = fw->rtwdev; 1723 1724 if (!firmware || !firmware->data) { 1725 rtw_err(rtwdev, "failed to request firmware\n"); 1726 complete_all(&fw->completion); 1727 return; 1728 } 1729 1730 fw->firmware = firmware; 1731 update_firmware_info(rtwdev, fw); 1732 complete_all(&fw->completion); 1733 1734 rtw_info(rtwdev, "%sFirmware version %u.%u.%u, H2C version %u\n", 1735 fw->type == RTW_WOWLAN_FW ? "WOW " : "", 1736 fw->version, fw->sub_version, fw->sub_index, fw->h2c_version); 1737 } 1738 1739 static int rtw_load_firmware(struct rtw_dev *rtwdev, enum rtw_fw_type type) 1740 { 1741 const char *fw_name; 1742 struct rtw_fw_state *fw; 1743 int ret; 1744 1745 switch (type) { 1746 case RTW_WOWLAN_FW: 1747 fw = &rtwdev->wow_fw; 1748 fw_name = rtwdev->chip->wow_fw_name; 1749 break; 1750 1751 case RTW_NORMAL_FW: 1752 fw = &rtwdev->fw; 1753 fw_name = rtwdev->chip->fw_name; 1754 break; 1755 1756 default: 1757 rtw_warn(rtwdev, "unsupported firmware type\n"); 1758 return -ENOENT; 1759 } 1760 1761 fw->type = type; 1762 fw->rtwdev = rtwdev; 1763 init_completion(&fw->completion); 1764 1765 ret = request_firmware_nowait(THIS_MODULE, true, fw_name, rtwdev->dev, 1766 GFP_KERNEL, fw, rtw_load_firmware_cb); 1767 if (ret) { 1768 rtw_err(rtwdev, "failed to async firmware request\n"); 1769 return ret; 1770 } 1771 1772 return 0; 1773 } 1774 1775 static int rtw_chip_parameter_setup(struct rtw_dev *rtwdev) 1776 { 1777 const struct rtw_chip_info *chip = rtwdev->chip; 1778 struct rtw_hal *hal = &rtwdev->hal; 1779 struct rtw_efuse *efuse = &rtwdev->efuse; 1780 1781 switch (rtw_hci_type(rtwdev)) { 1782 case RTW_HCI_TYPE_PCIE: 1783 rtwdev->hci.rpwm_addr = 0x03d9; 1784 rtwdev->hci.cpwm_addr = 0x03da; 1785 break; 1786 case RTW_HCI_TYPE_USB: 1787 rtwdev->hci.rpwm_addr = 0xfe58; 1788 rtwdev->hci.cpwm_addr = 0xfe57; 1789 break; 1790 default: 1791 rtw_err(rtwdev, "unsupported hci type\n"); 1792 return -EINVAL; 1793 } 1794 1795 hal->chip_version = rtw_read32(rtwdev, REG_SYS_CFG1); 1796 hal->cut_version = BIT_GET_CHIP_VER(hal->chip_version); 1797 hal->mp_chip = (hal->chip_version & BIT_RTL_ID) ? 0 : 1; 1798 if (hal->chip_version & BIT_RF_TYPE_ID) { 1799 hal->rf_type = RF_2T2R; 1800 hal->rf_path_num = 2; 1801 hal->antenna_tx = BB_PATH_AB; 1802 hal->antenna_rx = BB_PATH_AB; 1803 } else { 1804 hal->rf_type = RF_1T1R; 1805 hal->rf_path_num = 1; 1806 hal->antenna_tx = BB_PATH_A; 1807 hal->antenna_rx = BB_PATH_A; 1808 } 1809 hal->rf_phy_num = chip->fix_rf_phy_num ? chip->fix_rf_phy_num : 1810 hal->rf_path_num; 1811 1812 efuse->physical_size = chip->phy_efuse_size; 1813 efuse->logical_size = chip->log_efuse_size; 1814 efuse->protect_size = chip->ptct_efuse_size; 1815 1816 /* default use ack */ 1817 rtwdev->hal.rcr |= BIT_VHT_DACK; 1818 1819 hal->bfee_sts_cap = 3; 1820 1821 return 0; 1822 } 1823 1824 static int rtw_chip_efuse_enable(struct rtw_dev *rtwdev) 1825 { 1826 struct rtw_fw_state *fw = &rtwdev->fw; 1827 int ret; 1828 1829 ret = rtw_hci_setup(rtwdev); 1830 if (ret) { 1831 rtw_err(rtwdev, "failed to setup hci\n"); 1832 goto err; 1833 } 1834 1835 ret = rtw_mac_power_on(rtwdev); 1836 if (ret) { 1837 rtw_err(rtwdev, "failed to power on mac\n"); 1838 goto err; 1839 } 1840 1841 rtw_write8(rtwdev, REG_C2HEVT, C2H_HW_FEATURE_DUMP); 1842 1843 wait_for_completion(&fw->completion); 1844 if (!fw->firmware) { 1845 ret = -EINVAL; 1846 rtw_err(rtwdev, "failed to load firmware\n"); 1847 goto err; 1848 } 1849 1850 ret = rtw_download_firmware(rtwdev, fw); 1851 if (ret) { 1852 rtw_err(rtwdev, "failed to download firmware\n"); 1853 goto err_off; 1854 } 1855 1856 return 0; 1857 1858 err_off: 1859 rtw_mac_power_off(rtwdev); 1860 1861 err: 1862 return ret; 1863 } 1864 1865 static int rtw_dump_hw_feature(struct rtw_dev *rtwdev) 1866 { 1867 struct rtw_efuse *efuse = &rtwdev->efuse; 1868 u8 hw_feature[HW_FEATURE_LEN]; 1869 u8 id; 1870 u8 bw; 1871 int i; 1872 1873 id = rtw_read8(rtwdev, REG_C2HEVT); 1874 if (id != C2H_HW_FEATURE_REPORT) { 1875 rtw_err(rtwdev, "failed to read hw feature report\n"); 1876 return -EBUSY; 1877 } 1878 1879 for (i = 0; i < HW_FEATURE_LEN; i++) 1880 hw_feature[i] = rtw_read8(rtwdev, REG_C2HEVT + 2 + i); 1881 1882 rtw_write8(rtwdev, REG_C2HEVT, 0); 1883 1884 bw = GET_EFUSE_HW_CAP_BW(hw_feature); 1885 efuse->hw_cap.bw = hw_bw_cap_to_bitamp(bw); 1886 efuse->hw_cap.hci = GET_EFUSE_HW_CAP_HCI(hw_feature); 1887 efuse->hw_cap.nss = GET_EFUSE_HW_CAP_NSS(hw_feature); 1888 efuse->hw_cap.ptcl = GET_EFUSE_HW_CAP_PTCL(hw_feature); 1889 efuse->hw_cap.ant_num = GET_EFUSE_HW_CAP_ANT_NUM(hw_feature); 1890 1891 rtw_hw_config_rf_ant_num(rtwdev, efuse->hw_cap.ant_num); 1892 1893 if (efuse->hw_cap.nss == EFUSE_HW_CAP_IGNORE || 1894 efuse->hw_cap.nss > rtwdev->hal.rf_path_num) 1895 efuse->hw_cap.nss = rtwdev->hal.rf_path_num; 1896 1897 rtw_dbg(rtwdev, RTW_DBG_EFUSE, 1898 "hw cap: hci=0x%02x, bw=0x%02x, ptcl=0x%02x, ant_num=%d, nss=%d\n", 1899 efuse->hw_cap.hci, efuse->hw_cap.bw, efuse->hw_cap.ptcl, 1900 efuse->hw_cap.ant_num, efuse->hw_cap.nss); 1901 1902 return 0; 1903 } 1904 1905 static void rtw_chip_efuse_disable(struct rtw_dev *rtwdev) 1906 { 1907 rtw_hci_stop(rtwdev); 1908 rtw_mac_power_off(rtwdev); 1909 } 1910 1911 static int rtw_chip_efuse_info_setup(struct rtw_dev *rtwdev) 1912 { 1913 struct rtw_efuse *efuse = &rtwdev->efuse; 1914 int ret; 1915 1916 mutex_lock(&rtwdev->mutex); 1917 1918 /* power on mac to read efuse */ 1919 ret = rtw_chip_efuse_enable(rtwdev); 1920 if (ret) 1921 goto out_unlock; 1922 1923 ret = rtw_parse_efuse_map(rtwdev); 1924 if (ret) 1925 goto out_disable; 1926 1927 ret = rtw_dump_hw_feature(rtwdev); 1928 if (ret) 1929 goto out_disable; 1930 1931 ret = rtw_check_supported_rfe(rtwdev); 1932 if (ret) 1933 goto out_disable; 1934 1935 if (efuse->crystal_cap == 0xff) 1936 efuse->crystal_cap = 0; 1937 if (efuse->pa_type_2g == 0xff) 1938 efuse->pa_type_2g = 0; 1939 if (efuse->pa_type_5g == 0xff) 1940 efuse->pa_type_5g = 0; 1941 if (efuse->lna_type_2g == 0xff) 1942 efuse->lna_type_2g = 0; 1943 if (efuse->lna_type_5g == 0xff) 1944 efuse->lna_type_5g = 0; 1945 if (efuse->channel_plan == 0xff) 1946 efuse->channel_plan = 0x7f; 1947 if (efuse->rf_board_option == 0xff) 1948 efuse->rf_board_option = 0; 1949 if (efuse->bt_setting & BIT(0)) 1950 efuse->share_ant = true; 1951 if (efuse->regd == 0xff) 1952 efuse->regd = 0; 1953 if (efuse->tx_bb_swing_setting_2g == 0xff) 1954 efuse->tx_bb_swing_setting_2g = 0; 1955 if (efuse->tx_bb_swing_setting_5g == 0xff) 1956 efuse->tx_bb_swing_setting_5g = 0; 1957 1958 efuse->btcoex = (efuse->rf_board_option & 0xe0) == 0x20; 1959 efuse->ext_pa_2g = efuse->pa_type_2g & BIT(4) ? 1 : 0; 1960 efuse->ext_lna_2g = efuse->lna_type_2g & BIT(3) ? 1 : 0; 1961 efuse->ext_pa_5g = efuse->pa_type_5g & BIT(0) ? 1 : 0; 1962 efuse->ext_lna_2g = efuse->lna_type_5g & BIT(3) ? 1 : 0; 1963 1964 out_disable: 1965 rtw_chip_efuse_disable(rtwdev); 1966 1967 out_unlock: 1968 mutex_unlock(&rtwdev->mutex); 1969 return ret; 1970 } 1971 1972 static int rtw_chip_board_info_setup(struct rtw_dev *rtwdev) 1973 { 1974 struct rtw_hal *hal = &rtwdev->hal; 1975 const struct rtw_rfe_def *rfe_def = rtw_get_rfe_def(rtwdev); 1976 1977 if (!rfe_def) 1978 return -ENODEV; 1979 1980 rtw_phy_setup_phy_cond(rtwdev, 0); 1981 1982 rtw_phy_init_tx_power(rtwdev); 1983 if (rfe_def->agc_btg_tbl) 1984 rtw_load_table(rtwdev, rfe_def->agc_btg_tbl); 1985 rtw_load_table(rtwdev, rfe_def->phy_pg_tbl); 1986 rtw_load_table(rtwdev, rfe_def->txpwr_lmt_tbl); 1987 rtw_phy_tx_power_by_rate_config(hal); 1988 rtw_phy_tx_power_limit_config(hal); 1989 1990 return 0; 1991 } 1992 1993 int rtw_chip_info_setup(struct rtw_dev *rtwdev) 1994 { 1995 int ret; 1996 1997 ret = rtw_chip_parameter_setup(rtwdev); 1998 if (ret) { 1999 rtw_err(rtwdev, "failed to setup chip parameters\n"); 2000 goto err_out; 2001 } 2002 2003 ret = rtw_chip_efuse_info_setup(rtwdev); 2004 if (ret) { 2005 rtw_err(rtwdev, "failed to setup chip efuse info\n"); 2006 goto err_out; 2007 } 2008 2009 ret = rtw_chip_board_info_setup(rtwdev); 2010 if (ret) { 2011 rtw_err(rtwdev, "failed to setup chip board info\n"); 2012 goto err_out; 2013 } 2014 2015 return 0; 2016 2017 err_out: 2018 return ret; 2019 } 2020 EXPORT_SYMBOL(rtw_chip_info_setup); 2021 2022 static void rtw_stats_init(struct rtw_dev *rtwdev) 2023 { 2024 struct rtw_traffic_stats *stats = &rtwdev->stats; 2025 struct rtw_dm_info *dm_info = &rtwdev->dm_info; 2026 int i; 2027 2028 ewma_tp_init(&stats->tx_ewma_tp); 2029 ewma_tp_init(&stats->rx_ewma_tp); 2030 2031 for (i = 0; i < RTW_EVM_NUM; i++) 2032 ewma_evm_init(&dm_info->ewma_evm[i]); 2033 for (i = 0; i < RTW_SNR_NUM; i++) 2034 ewma_snr_init(&dm_info->ewma_snr[i]); 2035 } 2036 2037 int rtw_core_init(struct rtw_dev *rtwdev) 2038 { 2039 const struct rtw_chip_info *chip = rtwdev->chip; 2040 struct rtw_coex *coex = &rtwdev->coex; 2041 int ret; 2042 2043 INIT_LIST_HEAD(&rtwdev->rsvd_page_list); 2044 INIT_LIST_HEAD(&rtwdev->txqs); 2045 2046 timer_setup(&rtwdev->tx_report.purge_timer, 2047 rtw_tx_report_purge_timer, 0); 2048 rtwdev->tx_wq = alloc_workqueue("rtw_tx_wq", WQ_UNBOUND | WQ_HIGHPRI, 0); 2049 if (!rtwdev->tx_wq) { 2050 rtw_warn(rtwdev, "alloc_workqueue rtw_tx_wq failed\n"); 2051 return -ENOMEM; 2052 } 2053 2054 INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work); 2055 INIT_DELAYED_WORK(&coex->bt_relink_work, rtw_coex_bt_relink_work); 2056 INIT_DELAYED_WORK(&coex->bt_reenable_work, rtw_coex_bt_reenable_work); 2057 INIT_DELAYED_WORK(&coex->defreeze_work, rtw_coex_defreeze_work); 2058 INIT_DELAYED_WORK(&coex->wl_remain_work, rtw_coex_wl_remain_work); 2059 INIT_DELAYED_WORK(&coex->bt_remain_work, rtw_coex_bt_remain_work); 2060 INIT_DELAYED_WORK(&coex->wl_connecting_work, rtw_coex_wl_connecting_work); 2061 INIT_DELAYED_WORK(&coex->bt_multi_link_remain_work, 2062 rtw_coex_bt_multi_link_remain_work); 2063 INIT_DELAYED_WORK(&coex->wl_ccklock_work, rtw_coex_wl_ccklock_work); 2064 INIT_WORK(&rtwdev->tx_work, rtw_tx_work); 2065 INIT_WORK(&rtwdev->c2h_work, rtw_c2h_work); 2066 INIT_WORK(&rtwdev->ips_work, rtw_ips_work); 2067 INIT_WORK(&rtwdev->fw_recovery_work, rtw_fw_recovery_work); 2068 INIT_WORK(&rtwdev->update_beacon_work, rtw_fw_update_beacon_work); 2069 INIT_WORK(&rtwdev->ba_work, rtw_txq_ba_work); 2070 skb_queue_head_init(&rtwdev->c2h_queue); 2071 skb_queue_head_init(&rtwdev->coex.queue); 2072 skb_queue_head_init(&rtwdev->tx_report.queue); 2073 2074 spin_lock_init(&rtwdev->txq_lock); 2075 spin_lock_init(&rtwdev->tx_report.q_lock); 2076 2077 mutex_init(&rtwdev->mutex); 2078 mutex_init(&rtwdev->hal.tx_power_mutex); 2079 2080 init_waitqueue_head(&rtwdev->coex.wait); 2081 init_completion(&rtwdev->lps_leave_check); 2082 init_completion(&rtwdev->fw_scan_density); 2083 2084 rtwdev->sec.total_cam_num = 32; 2085 rtwdev->hal.current_channel = 1; 2086 rtwdev->dm_info.fix_rate = U8_MAX; 2087 set_bit(RTW_BC_MC_MACID, rtwdev->mac_id_map); 2088 2089 rtw_stats_init(rtwdev); 2090 2091 /* default rx filter setting */ 2092 rtwdev->hal.rcr = BIT_APP_FCS | BIT_APP_MIC | BIT_APP_ICV | 2093 BIT_PKTCTL_DLEN | BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS | 2094 BIT_AB | BIT_AM | BIT_APM; 2095 2096 ret = rtw_load_firmware(rtwdev, RTW_NORMAL_FW); 2097 if (ret) { 2098 rtw_warn(rtwdev, "no firmware loaded\n"); 2099 goto out; 2100 } 2101 2102 if (chip->wow_fw_name) { 2103 ret = rtw_load_firmware(rtwdev, RTW_WOWLAN_FW); 2104 if (ret) { 2105 rtw_warn(rtwdev, "no wow firmware loaded\n"); 2106 wait_for_completion(&rtwdev->fw.completion); 2107 if (rtwdev->fw.firmware) 2108 release_firmware(rtwdev->fw.firmware); 2109 goto out; 2110 } 2111 } 2112 2113 return 0; 2114 2115 out: 2116 destroy_workqueue(rtwdev->tx_wq); 2117 return ret; 2118 } 2119 EXPORT_SYMBOL(rtw_core_init); 2120 2121 void rtw_core_deinit(struct rtw_dev *rtwdev) 2122 { 2123 struct rtw_fw_state *fw = &rtwdev->fw; 2124 struct rtw_fw_state *wow_fw = &rtwdev->wow_fw; 2125 struct rtw_rsvd_page *rsvd_pkt, *tmp; 2126 unsigned long flags; 2127 2128 rtw_wait_firmware_completion(rtwdev); 2129 2130 if (fw->firmware) 2131 release_firmware(fw->firmware); 2132 2133 if (wow_fw->firmware) 2134 release_firmware(wow_fw->firmware); 2135 2136 destroy_workqueue(rtwdev->tx_wq); 2137 spin_lock_irqsave(&rtwdev->tx_report.q_lock, flags); 2138 skb_queue_purge(&rtwdev->tx_report.queue); 2139 skb_queue_purge(&rtwdev->coex.queue); 2140 spin_unlock_irqrestore(&rtwdev->tx_report.q_lock, flags); 2141 2142 list_for_each_entry_safe(rsvd_pkt, tmp, &rtwdev->rsvd_page_list, 2143 build_list) { 2144 list_del(&rsvd_pkt->build_list); 2145 kfree(rsvd_pkt); 2146 } 2147 2148 mutex_destroy(&rtwdev->mutex); 2149 mutex_destroy(&rtwdev->hal.tx_power_mutex); 2150 } 2151 EXPORT_SYMBOL(rtw_core_deinit); 2152 2153 int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw) 2154 { 2155 struct rtw_hal *hal = &rtwdev->hal; 2156 int max_tx_headroom = 0; 2157 int ret; 2158 2159 /* TODO: USB & SDIO may need extra room? */ 2160 max_tx_headroom = rtwdev->chip->tx_pkt_desc_sz; 2161 2162 hw->extra_tx_headroom = max_tx_headroom; 2163 hw->queues = IEEE80211_NUM_ACS; 2164 hw->txq_data_size = sizeof(struct rtw_txq); 2165 hw->sta_data_size = sizeof(struct rtw_sta_info); 2166 hw->vif_data_size = sizeof(struct rtw_vif); 2167 2168 ieee80211_hw_set(hw, SIGNAL_DBM); 2169 ieee80211_hw_set(hw, RX_INCLUDES_FCS); 2170 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 2171 ieee80211_hw_set(hw, MFP_CAPABLE); 2172 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 2173 ieee80211_hw_set(hw, SUPPORTS_PS); 2174 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 2175 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 2176 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 2177 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 2178 ieee80211_hw_set(hw, TX_AMSDU); 2179 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 2180 2181 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 2182 BIT(NL80211_IFTYPE_AP) | 2183 BIT(NL80211_IFTYPE_ADHOC) | 2184 BIT(NL80211_IFTYPE_MESH_POINT); 2185 hw->wiphy->available_antennas_tx = hal->antenna_tx; 2186 hw->wiphy->available_antennas_rx = hal->antenna_rx; 2187 2188 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 2189 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 2190 2191 hw->wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 2192 hw->wiphy->max_scan_ssids = RTW_SCAN_MAX_SSIDS; 2193 hw->wiphy->max_scan_ie_len = rtw_get_max_scan_ie_len(rtwdev); 2194 2195 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); 2196 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SCAN_RANDOM_SN); 2197 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); 2198 2199 #ifdef CONFIG_PM 2200 hw->wiphy->wowlan = rtwdev->chip->wowlan_stub; 2201 hw->wiphy->max_sched_scan_ssids = rtwdev->chip->max_sched_scan_ssids; 2202 #endif 2203 rtw_set_supported_band(hw, rtwdev->chip); 2204 SET_IEEE80211_PERM_ADDR(hw, rtwdev->efuse.addr); 2205 2206 hw->wiphy->sar_capa = &rtw_sar_capa; 2207 2208 ret = rtw_regd_init(rtwdev); 2209 if (ret) { 2210 rtw_err(rtwdev, "failed to init regd\n"); 2211 return ret; 2212 } 2213 2214 ret = ieee80211_register_hw(hw); 2215 if (ret) { 2216 rtw_err(rtwdev, "failed to register hw\n"); 2217 return ret; 2218 } 2219 2220 ret = rtw_regd_hint(rtwdev); 2221 if (ret) { 2222 rtw_err(rtwdev, "failed to hint regd\n"); 2223 return ret; 2224 } 2225 2226 rtw_debugfs_init(rtwdev); 2227 2228 rtwdev->bf_info.bfer_mu_cnt = 0; 2229 rtwdev->bf_info.bfer_su_cnt = 0; 2230 2231 return 0; 2232 } 2233 EXPORT_SYMBOL(rtw_register_hw); 2234 2235 void rtw_unregister_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw) 2236 { 2237 const struct rtw_chip_info *chip = rtwdev->chip; 2238 2239 ieee80211_unregister_hw(hw); 2240 rtw_unset_supported_band(hw, chip); 2241 } 2242 EXPORT_SYMBOL(rtw_unregister_hw); 2243 2244 MODULE_AUTHOR("Realtek Corporation"); 2245 MODULE_DESCRIPTION("Realtek 802.11ac wireless core module"); 2246 MODULE_LICENSE("Dual BSD/GPL"); 2247