1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* Copyright(c) 2019-2022 Realtek Corporation 3 */ 4 #include "cam.h" 5 #include "core.h" 6 #include "debug.h" 7 #include "fw.h" 8 #include "mac.h" 9 #include "phy.h" 10 #include "ps.h" 11 #include "reg.h" 12 #include "util.h" 13 #include "wow.h" 14 15 void __rtw89_wow_parse_akm(struct rtw89_dev *rtwdev, struct sk_buff *skb) 16 { 17 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; 18 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 19 const u8 *rsn, *ies = mgmt->u.assoc_req.variable; 20 struct rtw89_rsn_ie *rsn_ie; 21 22 rsn = cfg80211_find_ie(WLAN_EID_RSN, ies, skb->len); 23 if (!rsn) 24 return; 25 26 rsn_ie = (struct rtw89_rsn_ie *)rsn; 27 rtw_wow->akm = rsn_ie->akm_cipher_suite.type; 28 } 29 30 #define RTW89_CIPHER_INFO_DEF(cipher) \ 31 {WLAN_CIPHER_SUITE_ ## cipher, .fw_alg = RTW89_WOW_FW_ALG_ ## cipher, \ 32 .len = WLAN_KEY_LEN_ ## cipher} 33 34 static const struct rtw89_cipher_info rtw89_cipher_info_defs[] = { 35 RTW89_CIPHER_INFO_DEF(WEP40), 36 RTW89_CIPHER_INFO_DEF(WEP104), 37 RTW89_CIPHER_INFO_DEF(TKIP), 38 RTW89_CIPHER_INFO_DEF(CCMP), 39 RTW89_CIPHER_INFO_DEF(GCMP), 40 RTW89_CIPHER_INFO_DEF(CCMP_256), 41 RTW89_CIPHER_INFO_DEF(GCMP_256), 42 RTW89_CIPHER_INFO_DEF(AES_CMAC), 43 }; 44 45 #undef RTW89_CIPHER_INFO_DEF 46 47 static const 48 struct rtw89_cipher_info *rtw89_cipher_alg_recognize(u32 cipher) 49 { 50 const struct rtw89_cipher_info *cipher_info_defs; 51 int i; 52 53 for (i = 0; i < ARRAY_SIZE(rtw89_cipher_info_defs); i++) { 54 cipher_info_defs = &rtw89_cipher_info_defs[i]; 55 if (cipher_info_defs->cipher == cipher) 56 return cipher_info_defs; 57 } 58 59 return NULL; 60 } 61 62 static int _pn_to_iv(struct rtw89_dev *rtwdev, struct ieee80211_key_conf *key, 63 u8 *iv, u64 pn, u8 key_idx) 64 { 65 switch (key->cipher) { 66 case WLAN_CIPHER_SUITE_TKIP: 67 iv[0] = u64_get_bits(pn, RTW89_KEY_PN_1); 68 iv[1] = (u64_get_bits(pn, RTW89_KEY_PN_1) | 0x20) & 0x7f; 69 iv[2] = u64_get_bits(pn, RTW89_KEY_PN_0); 70 break; 71 case WLAN_CIPHER_SUITE_CCMP: 72 case WLAN_CIPHER_SUITE_GCMP: 73 case WLAN_CIPHER_SUITE_CCMP_256: 74 case WLAN_CIPHER_SUITE_GCMP_256: 75 iv[0] = u64_get_bits(pn, RTW89_KEY_PN_0); 76 iv[1] = u64_get_bits(pn, RTW89_KEY_PN_1); 77 iv[2] = 0; 78 break; 79 default: 80 return -EINVAL; 81 } 82 83 iv[3] = BIT(5) | ((key_idx & 0x3) << 6); 84 iv[4] = u64_get_bits(pn, RTW89_KEY_PN_2); 85 iv[5] = u64_get_bits(pn, RTW89_KEY_PN_3); 86 iv[6] = u64_get_bits(pn, RTW89_KEY_PN_4); 87 iv[7] = u64_get_bits(pn, RTW89_KEY_PN_5); 88 89 return 0; 90 } 91 92 static int rtw89_rx_pn_to_iv(struct rtw89_dev *rtwdev, 93 struct ieee80211_key_conf *key, 94 u8 *iv) 95 { 96 struct ieee80211_key_seq seq; 97 int err; 98 u64 pn; 99 100 ieee80211_get_key_rx_seq(key, 0, &seq); 101 102 switch (key->cipher) { 103 case WLAN_CIPHER_SUITE_TKIP: 104 pn = u64_encode_bits(seq.tkip.iv32, RTW89_KEY_TKIP_PN_IV32) | 105 u64_encode_bits(seq.tkip.iv16, RTW89_KEY_TKIP_PN_IV16); 106 break; 107 case WLAN_CIPHER_SUITE_CCMP: 108 case WLAN_CIPHER_SUITE_GCMP: 109 case WLAN_CIPHER_SUITE_CCMP_256: 110 case WLAN_CIPHER_SUITE_GCMP_256: 111 /* seq.ccmp.pn[] is BE order array */ 112 pn = u64_encode_bits(seq.ccmp.pn[0], RTW89_KEY_PN_5) | 113 u64_encode_bits(seq.ccmp.pn[1], RTW89_KEY_PN_4) | 114 u64_encode_bits(seq.ccmp.pn[2], RTW89_KEY_PN_3) | 115 u64_encode_bits(seq.ccmp.pn[3], RTW89_KEY_PN_2) | 116 u64_encode_bits(seq.ccmp.pn[4], RTW89_KEY_PN_1) | 117 u64_encode_bits(seq.ccmp.pn[5], RTW89_KEY_PN_0); 118 break; 119 default: 120 return -EINVAL; 121 } 122 123 err = _pn_to_iv(rtwdev, key, iv, pn, key->keyidx); 124 if (err) 125 return err; 126 127 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx to iv-%*ph\n", 128 __func__, key->keyidx, pn, 8, iv); 129 130 return 0; 131 } 132 133 static int rtw89_tx_pn_to_iv(struct rtw89_dev *rtwdev, 134 struct ieee80211_key_conf *key, 135 u8 *iv) 136 { 137 int err; 138 u64 pn; 139 140 pn = atomic64_inc_return(&key->tx_pn); 141 err = _pn_to_iv(rtwdev, key, iv, pn, key->keyidx); 142 if (err) 143 return err; 144 145 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx to iv-%*ph\n", 146 __func__, key->keyidx, pn, 8, iv); 147 148 return 0; 149 } 150 151 static int _iv_to_pn(struct rtw89_dev *rtwdev, u8 *iv, u64 *pn, u8 *key_id, 152 struct ieee80211_key_conf *key) 153 { 154 switch (key->cipher) { 155 case WLAN_CIPHER_SUITE_TKIP: 156 *pn = u64_encode_bits(iv[2], RTW89_KEY_PN_0) | 157 u64_encode_bits(iv[0], RTW89_KEY_PN_1); 158 break; 159 case WLAN_CIPHER_SUITE_CCMP: 160 case WLAN_CIPHER_SUITE_GCMP: 161 case WLAN_CIPHER_SUITE_CCMP_256: 162 case WLAN_CIPHER_SUITE_GCMP_256: 163 *pn = u64_encode_bits(iv[0], RTW89_KEY_PN_0) | 164 u64_encode_bits(iv[1], RTW89_KEY_PN_1); 165 break; 166 default: 167 return -EINVAL; 168 } 169 170 *pn |= u64_encode_bits(iv[4], RTW89_KEY_PN_2) | 171 u64_encode_bits(iv[5], RTW89_KEY_PN_3) | 172 u64_encode_bits(iv[6], RTW89_KEY_PN_4) | 173 u64_encode_bits(iv[7], RTW89_KEY_PN_5); 174 175 if (key_id) 176 *key_id = *(iv + 3) >> 6; 177 178 return 0; 179 } 180 181 static int rtw89_rx_iv_to_pn(struct rtw89_dev *rtwdev, 182 struct ieee80211_key_conf *key, 183 u8 *iv) 184 { 185 struct ieee80211_key_seq seq; 186 int err; 187 u64 pn; 188 189 err = _iv_to_pn(rtwdev, iv, &pn, NULL, key); 190 if (err) 191 return err; 192 193 switch (key->cipher) { 194 case WLAN_CIPHER_SUITE_TKIP: 195 seq.tkip.iv32 = u64_get_bits(pn, RTW89_KEY_TKIP_PN_IV32); 196 seq.tkip.iv16 = u64_get_bits(pn, RTW89_KEY_TKIP_PN_IV16); 197 break; 198 case WLAN_CIPHER_SUITE_CCMP: 199 case WLAN_CIPHER_SUITE_GCMP: 200 case WLAN_CIPHER_SUITE_CCMP_256: 201 case WLAN_CIPHER_SUITE_GCMP_256: 202 /* seq.ccmp.pn[] is BE order array */ 203 seq.ccmp.pn[0] = u64_get_bits(pn, RTW89_KEY_PN_5); 204 seq.ccmp.pn[1] = u64_get_bits(pn, RTW89_KEY_PN_4); 205 seq.ccmp.pn[2] = u64_get_bits(pn, RTW89_KEY_PN_3); 206 seq.ccmp.pn[3] = u64_get_bits(pn, RTW89_KEY_PN_2); 207 seq.ccmp.pn[4] = u64_get_bits(pn, RTW89_KEY_PN_1); 208 seq.ccmp.pn[5] = u64_get_bits(pn, RTW89_KEY_PN_0); 209 break; 210 default: 211 return -EINVAL; 212 } 213 214 ieee80211_set_key_rx_seq(key, 0, &seq); 215 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d iv-%*ph to pn-%*ph\n", 216 __func__, key->keyidx, 8, iv, 6, seq.ccmp.pn); 217 218 return 0; 219 } 220 221 static int rtw89_tx_iv_to_pn(struct rtw89_dev *rtwdev, 222 struct ieee80211_key_conf *key, 223 u8 *iv) 224 { 225 int err; 226 u64 pn; 227 228 err = _iv_to_pn(rtwdev, iv, &pn, NULL, key); 229 if (err) 230 return err; 231 232 atomic64_set(&key->tx_pn, pn); 233 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d iv-%*ph to pn-%llx\n", 234 __func__, key->keyidx, 8, iv, pn); 235 236 return 0; 237 } 238 239 static int rtw89_rx_pn_get_pmf(struct rtw89_dev *rtwdev, 240 struct ieee80211_key_conf *key, 241 struct rtw89_wow_gtk_info *gtk_info) 242 { 243 struct ieee80211_key_seq seq; 244 u64 pn; 245 246 if (key->keyidx == 4) 247 memcpy(gtk_info->igtk[0], key->key, key->keylen); 248 else if (key->keyidx == 5) 249 memcpy(gtk_info->igtk[1], key->key, key->keylen); 250 else 251 return -EINVAL; 252 253 ieee80211_get_key_rx_seq(key, 0, &seq); 254 255 /* seq.ccmp.pn[] is BE order array */ 256 pn = u64_encode_bits(seq.ccmp.pn[0], RTW89_KEY_PN_5) | 257 u64_encode_bits(seq.ccmp.pn[1], RTW89_KEY_PN_4) | 258 u64_encode_bits(seq.ccmp.pn[2], RTW89_KEY_PN_3) | 259 u64_encode_bits(seq.ccmp.pn[3], RTW89_KEY_PN_2) | 260 u64_encode_bits(seq.ccmp.pn[4], RTW89_KEY_PN_1) | 261 u64_encode_bits(seq.ccmp.pn[5], RTW89_KEY_PN_0); 262 gtk_info->ipn = cpu_to_le64(pn); 263 gtk_info->igtk_keyid = cpu_to_le32(key->keyidx); 264 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx\n", 265 __func__, key->keyidx, pn); 266 267 return 0; 268 } 269 270 static int rtw89_rx_pn_set_pmf(struct rtw89_dev *rtwdev, 271 struct ieee80211_key_conf *key, 272 u64 pn) 273 { 274 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 275 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 276 struct ieee80211_key_seq seq; 277 278 if (key->keyidx != aoac_rpt->igtk_key_id) 279 return 0; 280 281 /* seq.ccmp.pn[] is BE order array */ 282 seq.ccmp.pn[0] = u64_get_bits(pn, RTW89_KEY_PN_5); 283 seq.ccmp.pn[1] = u64_get_bits(pn, RTW89_KEY_PN_4); 284 seq.ccmp.pn[2] = u64_get_bits(pn, RTW89_KEY_PN_3); 285 seq.ccmp.pn[3] = u64_get_bits(pn, RTW89_KEY_PN_2); 286 seq.ccmp.pn[4] = u64_get_bits(pn, RTW89_KEY_PN_1); 287 seq.ccmp.pn[5] = u64_get_bits(pn, RTW89_KEY_PN_0); 288 289 ieee80211_set_key_rx_seq(key, 0, &seq); 290 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%*ph\n", 291 __func__, key->keyidx, 6, seq.ccmp.pn); 292 293 return 0; 294 } 295 296 static void rtw89_wow_get_key_info_iter(struct ieee80211_hw *hw, 297 struct ieee80211_vif *vif, 298 struct ieee80211_sta *sta, 299 struct ieee80211_key_conf *key, 300 void *data) 301 { 302 struct rtw89_dev *rtwdev = hw->priv; 303 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 304 struct rtw89_wow_key_info *key_info = &rtw_wow->key_info; 305 struct rtw89_wow_gtk_info *gtk_info = &rtw_wow->gtk_info; 306 const struct rtw89_cipher_info *cipher_info; 307 bool *err = data; 308 int ret; 309 310 cipher_info = rtw89_cipher_alg_recognize(key->cipher); 311 312 switch (key->cipher) { 313 case WLAN_CIPHER_SUITE_TKIP: 314 if (sta) 315 memcpy(gtk_info->txmickey, 316 key->key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 317 sizeof(gtk_info->txmickey)); 318 fallthrough; 319 case WLAN_CIPHER_SUITE_CCMP: 320 case WLAN_CIPHER_SUITE_GCMP: 321 case WLAN_CIPHER_SUITE_CCMP_256: 322 case WLAN_CIPHER_SUITE_GCMP_256: 323 if (sta) { 324 ret = rtw89_tx_pn_to_iv(rtwdev, key, 325 key_info->ptk_tx_iv); 326 if (ret) 327 goto err; 328 ret = rtw89_rx_pn_to_iv(rtwdev, key, 329 key_info->ptk_rx_iv); 330 if (ret) 331 goto err; 332 333 rtw_wow->ptk_alg = cipher_info->fw_alg; 334 rtw_wow->ptk_keyidx = key->keyidx; 335 } else { 336 ret = rtw89_rx_pn_to_iv(rtwdev, key, 337 key_info->gtk_rx_iv[key->keyidx]); 338 if (ret) 339 goto err; 340 341 rtw_wow->gtk_alg = cipher_info->fw_alg; 342 key_info->gtk_keyidx = key->keyidx; 343 } 344 break; 345 case WLAN_CIPHER_SUITE_AES_CMAC: 346 ret = rtw89_rx_pn_get_pmf(rtwdev, key, gtk_info); 347 if (ret) 348 goto err; 349 break; 350 case WLAN_CIPHER_SUITE_WEP40: 351 case WLAN_CIPHER_SUITE_WEP104: 352 /* WEP only set group key in mac80211, but fw need to set 353 * both of pairwise key and group key. 354 */ 355 rtw_wow->ptk_alg = cipher_info->fw_alg; 356 rtw_wow->ptk_keyidx = key->keyidx; 357 rtw_wow->gtk_alg = cipher_info->fw_alg; 358 key_info->gtk_keyidx = key->keyidx; 359 break; 360 default: 361 rtw89_debug(rtwdev, RTW89_DBG_WOW, "unsupport cipher %x\n", 362 key->cipher); 363 goto err; 364 } 365 366 return; 367 err: 368 *err = true; 369 } 370 371 static void rtw89_wow_set_key_info_iter(struct ieee80211_hw *hw, 372 struct ieee80211_vif *vif, 373 struct ieee80211_sta *sta, 374 struct ieee80211_key_conf *key, 375 void *data) 376 { 377 struct rtw89_dev *rtwdev = hw->priv; 378 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 379 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 380 struct rtw89_set_key_info_iter_data *iter_data = data; 381 bool update_tx_key_info = iter_data->rx_ready; 382 u8 tmp[RTW89_MIC_KEY_LEN]; 383 int ret; 384 385 switch (key->cipher) { 386 case WLAN_CIPHER_SUITE_TKIP: 387 /* 388 * TX MIC KEY and RX MIC KEY is oppsite in FW, 389 * need to swap it before sending to mac80211. 390 */ 391 if (!sta && update_tx_key_info && aoac_rpt->rekey_ok && 392 !iter_data->tkip_gtk_swapped) { 393 memcpy(tmp, &aoac_rpt->gtk[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 394 RTW89_MIC_KEY_LEN); 395 memcpy(&aoac_rpt->gtk[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 396 &aoac_rpt->gtk[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 397 RTW89_MIC_KEY_LEN); 398 memcpy(&aoac_rpt->gtk[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 399 tmp, RTW89_MIC_KEY_LEN); 400 iter_data->tkip_gtk_swapped = true; 401 } 402 fallthrough; 403 case WLAN_CIPHER_SUITE_CCMP: 404 case WLAN_CIPHER_SUITE_GCMP: 405 case WLAN_CIPHER_SUITE_CCMP_256: 406 case WLAN_CIPHER_SUITE_GCMP_256: 407 if (sta && !update_tx_key_info) { 408 ret = rtw89_rx_iv_to_pn(rtwdev, key, 409 aoac_rpt->ptk_rx_iv); 410 if (ret) 411 goto err; 412 } 413 414 if (sta && update_tx_key_info) { 415 ret = rtw89_tx_iv_to_pn(rtwdev, key, 416 aoac_rpt->ptk_tx_iv); 417 if (ret) 418 goto err; 419 } 420 421 if (!sta && !update_tx_key_info) { 422 ret = rtw89_rx_iv_to_pn(rtwdev, key, 423 aoac_rpt->gtk_rx_iv[key->keyidx]); 424 if (ret) 425 goto err; 426 } 427 428 if (!sta && update_tx_key_info && aoac_rpt->rekey_ok) 429 iter_data->gtk_cipher = key->cipher; 430 break; 431 case WLAN_CIPHER_SUITE_AES_CMAC: 432 if (update_tx_key_info) { 433 if (aoac_rpt->rekey_ok) 434 iter_data->igtk_cipher = key->cipher; 435 } else { 436 ret = rtw89_rx_pn_set_pmf(rtwdev, key, 437 aoac_rpt->igtk_ipn); 438 if (ret) 439 goto err; 440 } 441 break; 442 case WLAN_CIPHER_SUITE_WEP40: 443 case WLAN_CIPHER_SUITE_WEP104: 444 break; 445 default: 446 rtw89_debug(rtwdev, RTW89_DBG_WOW, "unsupport cipher %x\n", 447 key->cipher); 448 goto err; 449 } 450 451 return; 452 453 err: 454 iter_data->error = true; 455 } 456 457 static void rtw89_wow_key_clear(struct rtw89_dev *rtwdev) 458 { 459 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 460 461 memset(&rtw_wow->aoac_rpt, 0, sizeof(rtw_wow->aoac_rpt)); 462 memset(&rtw_wow->gtk_info, 0, sizeof(rtw_wow->gtk_info)); 463 memset(&rtw_wow->key_info, 0, sizeof(rtw_wow->key_info)); 464 rtw_wow->ptk_alg = 0; 465 rtw_wow->gtk_alg = 0; 466 } 467 468 static void rtw89_wow_construct_key_info(struct rtw89_dev *rtwdev) 469 { 470 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 471 struct rtw89_wow_key_info *key_info = &rtw_wow->key_info; 472 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 473 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 474 bool err = false; 475 476 rcu_read_lock(); 477 ieee80211_iter_keys_rcu(rtwdev->hw, wow_vif, 478 rtw89_wow_get_key_info_iter, &err); 479 rcu_read_unlock(); 480 481 if (err) { 482 rtw89_wow_key_clear(rtwdev); 483 return; 484 } 485 486 key_info->valid_check = RTW89_WOW_VALID_CHECK; 487 key_info->symbol_check_en = RTW89_WOW_SYMBOL_CHK_PTK | 488 RTW89_WOW_SYMBOL_CHK_GTK; 489 } 490 491 static void rtw89_wow_debug_aoac_rpt(struct rtw89_dev *rtwdev) 492 { 493 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 494 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 495 496 if (!rtw89_debug_is_enabled(rtwdev, RTW89_DBG_WOW)) 497 return; 498 499 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] rpt_ver = %d\n", 500 aoac_rpt->rpt_ver); 501 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] sec_type = %d\n", 502 aoac_rpt->sec_type); 503 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] key_idx = %d\n", 504 aoac_rpt->key_idx); 505 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] pattern_idx = %d\n", 506 aoac_rpt->pattern_idx); 507 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] rekey_ok = %d\n", 508 aoac_rpt->rekey_ok); 509 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] ptk_tx_iv = %*ph\n", 510 8, aoac_rpt->ptk_tx_iv); 511 rtw89_debug(rtwdev, RTW89_DBG_WOW, 512 "[aoac_rpt] eapol_key_replay_count = %*ph\n", 513 8, aoac_rpt->eapol_key_replay_count); 514 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] ptk_rx_iv = %*ph\n", 515 8, aoac_rpt->ptk_rx_iv); 516 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[0] = %*ph\n", 517 8, aoac_rpt->gtk_rx_iv[0]); 518 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[1] = %*ph\n", 519 8, aoac_rpt->gtk_rx_iv[1]); 520 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[2] = %*ph\n", 521 8, aoac_rpt->gtk_rx_iv[2]); 522 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[3] = %*ph\n", 523 8, aoac_rpt->gtk_rx_iv[3]); 524 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_key_id = %llu\n", 525 aoac_rpt->igtk_key_id); 526 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_ipn = %llu\n", 527 aoac_rpt->igtk_ipn); 528 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk = %*ph\n", 529 32, aoac_rpt->igtk); 530 } 531 532 static int rtw89_wow_get_aoac_rpt_reg(struct rtw89_dev *rtwdev) 533 { 534 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 535 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 536 struct rtw89_mac_c2h_info c2h_info = {}; 537 struct rtw89_mac_h2c_info h2c_info = {}; 538 u8 igtk_ipn[8]; 539 u8 key_idx; 540 int ret; 541 542 h2c_info.id = RTW89_FWCMD_H2CREG_FUNC_AOAC_RPT_1; 543 h2c_info.content_len = 2; 544 ret = rtw89_fw_msg_reg(rtwdev, &h2c_info, &c2h_info); 545 if (ret) 546 return ret; 547 548 aoac_rpt->key_idx = 549 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_1_W0_KEY_IDX); 550 key_idx = aoac_rpt->key_idx; 551 aoac_rpt->gtk_rx_iv[key_idx][0] = 552 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_0); 553 aoac_rpt->gtk_rx_iv[key_idx][1] = 554 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_1); 555 aoac_rpt->gtk_rx_iv[key_idx][2] = 556 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_2); 557 aoac_rpt->gtk_rx_iv[key_idx][3] = 558 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_3); 559 aoac_rpt->gtk_rx_iv[key_idx][4] = 560 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_4); 561 aoac_rpt->gtk_rx_iv[key_idx][5] = 562 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_5); 563 aoac_rpt->gtk_rx_iv[key_idx][6] = 564 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_6); 565 aoac_rpt->gtk_rx_iv[key_idx][7] = 566 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_7); 567 aoac_rpt->ptk_rx_iv[0] = 568 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_0); 569 aoac_rpt->ptk_rx_iv[1] = 570 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_1); 571 aoac_rpt->ptk_rx_iv[2] = 572 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_2); 573 aoac_rpt->ptk_rx_iv[3] = 574 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_3); 575 576 h2c_info.id = RTW89_FWCMD_H2CREG_FUNC_AOAC_RPT_2; 577 h2c_info.content_len = 2; 578 ret = rtw89_fw_msg_reg(rtwdev, &h2c_info, &c2h_info); 579 if (ret) 580 return ret; 581 582 aoac_rpt->ptk_rx_iv[4] = 583 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_2_W0_PTK_IV_4); 584 aoac_rpt->ptk_rx_iv[5] = 585 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_2_W0_PTK_IV_5); 586 aoac_rpt->ptk_rx_iv[6] = 587 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_PTK_IV_6); 588 aoac_rpt->ptk_rx_iv[7] = 589 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_PTK_IV_7); 590 igtk_ipn[0] = 591 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_IGTK_IPN_IV_0); 592 igtk_ipn[1] = 593 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_IGTK_IPN_IV_1); 594 igtk_ipn[2] = 595 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_2); 596 igtk_ipn[3] = 597 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_3); 598 igtk_ipn[4] = 599 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_4); 600 igtk_ipn[5] = 601 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_5); 602 igtk_ipn[6] = 603 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_2_W3_IGTK_IPN_IV_6); 604 igtk_ipn[7] = 605 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_2_W3_IGTK_IPN_IV_7); 606 aoac_rpt->igtk_ipn = u64_encode_bits(igtk_ipn[0], RTW89_IGTK_IPN_0) | 607 u64_encode_bits(igtk_ipn[1], RTW89_IGTK_IPN_1) | 608 u64_encode_bits(igtk_ipn[2], RTW89_IGTK_IPN_2) | 609 u64_encode_bits(igtk_ipn[3], RTW89_IGTK_IPN_3) | 610 u64_encode_bits(igtk_ipn[4], RTW89_IGTK_IPN_4) | 611 u64_encode_bits(igtk_ipn[5], RTW89_IGTK_IPN_5) | 612 u64_encode_bits(igtk_ipn[6], RTW89_IGTK_IPN_6) | 613 u64_encode_bits(igtk_ipn[7], RTW89_IGTK_IPN_7); 614 615 return 0; 616 } 617 618 static int rtw89_wow_get_aoac_rpt(struct rtw89_dev *rtwdev, bool rx_ready) 619 { 620 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 621 int ret; 622 623 if (!rtw_wow->ptk_alg) 624 return -EPERM; 625 626 if (!rx_ready) { 627 ret = rtw89_wow_get_aoac_rpt_reg(rtwdev); 628 if (ret) { 629 rtw89_err(rtwdev, "wow: failed to get aoac rpt by reg\n"); 630 return ret; 631 } 632 } else { 633 ret = rtw89_fw_h2c_wow_request_aoac(rtwdev); 634 if (ret) { 635 rtw89_err(rtwdev, "wow: failed to get aoac rpt by pkt\n"); 636 return ret; 637 } 638 } 639 640 rtw89_wow_debug_aoac_rpt(rtwdev); 641 642 return 0; 643 } 644 645 static struct ieee80211_key_conf *rtw89_wow_gtk_rekey(struct rtw89_dev *rtwdev, 646 u32 cipher, u8 keyidx, u8 *gtk) 647 { 648 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 649 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 650 const struct rtw89_cipher_info *cipher_info; 651 struct ieee80211_key_conf *rekey_conf; 652 struct ieee80211_key_conf *key; 653 u8 sz; 654 655 lockdep_assert_wiphy(rtwdev->hw->wiphy); 656 657 cipher_info = rtw89_cipher_alg_recognize(cipher); 658 sz = struct_size(rekey_conf, key, cipher_info->len); 659 rekey_conf = kmalloc(sz, GFP_KERNEL); 660 if (!rekey_conf) 661 return NULL; 662 663 rekey_conf->cipher = cipher; 664 rekey_conf->keyidx = keyidx; 665 rekey_conf->keylen = cipher_info->len; 666 memcpy(rekey_conf->key, gtk, 667 flex_array_size(rekey_conf, key, cipher_info->len)); 668 669 if (ieee80211_vif_is_mld(wow_vif)) 670 key = ieee80211_gtk_rekey_add(wow_vif, keyidx, gtk, 671 cipher_info->len, 672 rtwvif_link->link_id); 673 else 674 key = ieee80211_gtk_rekey_add(wow_vif, keyidx, gtk, 675 cipher_info->len, -1); 676 677 kfree(rekey_conf); 678 if (IS_ERR(key)) { 679 rtw89_err(rtwdev, "ieee80211_gtk_rekey_add failed\n"); 680 return NULL; 681 } 682 683 return key; 684 } 685 686 static void rtw89_wow_update_key_info(struct rtw89_dev *rtwdev, bool rx_ready) 687 { 688 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 689 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 690 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 691 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 692 struct rtw89_set_key_info_iter_data data = {.error = false, 693 .rx_ready = rx_ready, 694 .tkip_gtk_swapped = false}; 695 struct ieee80211_bss_conf *bss_conf; 696 struct ieee80211_key_conf *key; 697 698 rcu_read_lock(); 699 ieee80211_iter_keys_rcu(rtwdev->hw, wow_vif, 700 rtw89_wow_set_key_info_iter, &data); 701 rcu_read_unlock(); 702 703 if (data.error) { 704 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s error\n", __func__); 705 return; 706 } 707 708 if (!data.gtk_cipher) 709 return; 710 711 key = rtw89_wow_gtk_rekey(rtwdev, data.gtk_cipher, aoac_rpt->key_idx, 712 aoac_rpt->gtk); 713 if (!key) 714 return; 715 716 rtw89_rx_iv_to_pn(rtwdev, key, 717 aoac_rpt->gtk_rx_iv[key->keyidx]); 718 719 if (!data.igtk_cipher) 720 return; 721 722 key = rtw89_wow_gtk_rekey(rtwdev, data.igtk_cipher, aoac_rpt->igtk_key_id, 723 aoac_rpt->igtk); 724 if (!key) 725 return; 726 727 rtw89_rx_pn_set_pmf(rtwdev, key, aoac_rpt->igtk_ipn); 728 729 rcu_read_lock(); 730 731 bss_conf = rtw89_vif_rcu_dereference_link(rtwvif_link, true); 732 ieee80211_gtk_rekey_notify(wow_vif, bss_conf->bssid, 733 aoac_rpt->eapol_key_replay_count, 734 GFP_ATOMIC); 735 736 rcu_read_unlock(); 737 } 738 739 static void rtw89_wow_leave_deep_ps(struct rtw89_dev *rtwdev) 740 { 741 __rtw89_leave_ps_mode(rtwdev); 742 } 743 744 static void rtw89_wow_enter_deep_ps(struct rtw89_dev *rtwdev) 745 { 746 __rtw89_enter_ps_mode(rtwdev); 747 } 748 749 static void rtw89_wow_enter_ps(struct rtw89_dev *rtwdev) 750 { 751 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 752 753 if (rtw89_wow_mgd_linked(rtwdev)) 754 rtw89_enter_lps(rtwdev, rtwvif_link->rtwvif, false); 755 else if (rtw89_wow_no_link(rtwdev)) 756 rtw89_fw_h2c_fwips(rtwdev, rtwvif_link, true); 757 } 758 759 static void rtw89_wow_leave_ps(struct rtw89_dev *rtwdev, bool enable_wow) 760 { 761 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 762 763 if (rtw89_wow_mgd_linked(rtwdev)) { 764 rtw89_leave_lps(rtwdev); 765 } else if (rtw89_wow_no_link(rtwdev)) { 766 if (enable_wow) 767 rtw89_leave_ips(rtwdev); 768 else 769 rtw89_fw_h2c_fwips(rtwdev, rtwvif_link, false); 770 } 771 } 772 773 static int rtw89_wow_config_mac(struct rtw89_dev *rtwdev, bool enable_wow) 774 { 775 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 776 777 return mac->wow_config_mac(rtwdev, enable_wow); 778 } 779 780 static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable) 781 { 782 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 783 enum rtw89_mac_fwd_target fwd_target = enable ? 784 RTW89_FWD_DONT_CARE : 785 RTW89_FWD_TO_HOST; 786 787 mac->typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0); 788 mac->typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0); 789 mac->typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0); 790 } 791 792 static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev) 793 { 794 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 795 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 796 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 797 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 798 struct cfg80211_wowlan_nd_info nd_info; 799 struct cfg80211_wowlan_wakeup wakeup = { 800 .pattern_idx = -1, 801 }; 802 u32 wow_reason_reg; 803 u8 reason; 804 805 if (RTW89_CHK_FW_FEATURE(WOW_REASON_V1, &rtwdev->fw)) 806 wow_reason_reg = rtwdev->chip->wow_reason_reg[RTW89_WOW_REASON_V1]; 807 else 808 wow_reason_reg = rtwdev->chip->wow_reason_reg[RTW89_WOW_REASON_V0]; 809 810 reason = rtw89_read8(rtwdev, wow_reason_reg); 811 switch (reason) { 812 case RTW89_WOW_RSN_RX_DEAUTH: 813 wakeup.disconnect = true; 814 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n"); 815 break; 816 case RTW89_WOW_RSN_DISCONNECT: 817 wakeup.disconnect = true; 818 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n"); 819 break; 820 case RTW89_WOW_RSN_RX_MAGIC_PKT: 821 wakeup.magic_pkt = true; 822 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n"); 823 break; 824 case RTW89_WOW_RSN_RX_GTK_REKEY: 825 wakeup.gtk_rekey_failure = true; 826 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n"); 827 break; 828 case RTW89_WOW_RSN_RX_PATTERN_MATCH: 829 wakeup.pattern_idx = aoac_rpt->pattern_idx; 830 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n"); 831 break; 832 case RTW89_WOW_RSN_RX_NLO: 833 /* Current firmware and driver don't report ssid index. 834 * Use 0 for n_matches based on its comment. 835 */ 836 nd_info.n_matches = 0; 837 wakeup.net_detect = &nd_info; 838 rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n"); 839 break; 840 default: 841 rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason); 842 ieee80211_report_wowlan_wakeup(wow_vif, NULL, GFP_KERNEL); 843 return; 844 } 845 846 ieee80211_report_wowlan_wakeup(wow_vif, &wakeup, GFP_KERNEL); 847 } 848 849 static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, 850 struct rtw89_vif_link *rtwvif_link) 851 { 852 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 853 struct ieee80211_vif *vif = rtwvif_link_to_vif(rtwvif_link); 854 855 /* Current WoWLAN function support setting of only vif in 856 * infra mode or no link mode. When one suitable vif is found, 857 * stop the iteration. 858 */ 859 if (rtw_wow->rtwvif_link || vif->type != NL80211_IFTYPE_STATION) 860 return; 861 862 switch (rtwvif_link->net_type) { 863 case RTW89_NET_TYPE_INFRA: 864 if (rtw_wow_has_mgd_features(rtwdev)) 865 rtw_wow->rtwvif_link = rtwvif_link; 866 break; 867 case RTW89_NET_TYPE_NO_LINK: 868 if (rtw_wow->pno_inited) 869 rtw_wow->rtwvif_link = rtwvif_link; 870 break; 871 default: 872 break; 873 } 874 } 875 876 static u16 __rtw89_cal_crc16(u8 data, u16 crc) 877 { 878 u8 shift_in, data_bit; 879 u8 crc_bit4, crc_bit11, crc_bit15; 880 u16 crc_result; 881 int index; 882 883 for (index = 0; index < 8; index++) { 884 crc_bit15 = crc & BIT(15) ? 1 : 0; 885 data_bit = data & BIT(index) ? 1 : 0; 886 shift_in = crc_bit15 ^ data_bit; 887 888 crc_result = crc << 1; 889 890 if (shift_in == 0) 891 crc_result &= ~BIT(0); 892 else 893 crc_result |= BIT(0); 894 895 crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in; 896 897 if (crc_bit11 == 0) 898 crc_result &= ~BIT(12); 899 else 900 crc_result |= BIT(12); 901 902 crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in; 903 904 if (crc_bit4 == 0) 905 crc_result &= ~BIT(5); 906 else 907 crc_result |= BIT(5); 908 909 crc = crc_result; 910 } 911 return crc; 912 } 913 914 static u16 rtw89_calc_crc(u8 *pdata, int length) 915 { 916 u16 crc = 0xffff; 917 int i; 918 919 for (i = 0; i < length; i++) 920 crc = __rtw89_cal_crc16(pdata[i], crc); 921 922 /* get 1' complement */ 923 return ~crc; 924 } 925 926 static int rtw89_wow_pattern_get_type(struct rtw89_vif_link *rtwvif_link, 927 struct rtw89_wow_cam_info *rtw_pattern, 928 const u8 *pattern, u8 da_mask) 929 { 930 u8 da[ETH_ALEN]; 931 932 ether_addr_copy_mask(da, pattern, da_mask); 933 934 /* Each pattern is divided into different kinds by DA address 935 * a. DA is broadcast address: set bc = 0; 936 * b. DA is multicast address: set mc = 0 937 * c. DA is unicast address same as dev's mac address: set uc = 0 938 * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0 939 * e. Others is invalid type. 940 */ 941 942 if (is_broadcast_ether_addr(da)) 943 rtw_pattern->bc = true; 944 else if (is_multicast_ether_addr(da)) 945 rtw_pattern->mc = true; 946 else if (ether_addr_equal(da, rtwvif_link->mac_addr) && 947 da_mask == GENMASK(5, 0)) 948 rtw_pattern->uc = true; 949 else if (!da_mask) /*da_mask == 0 mean wildcard*/ 950 return 0; 951 else 952 return -EPERM; 953 954 return 0; 955 } 956 957 static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev, 958 struct rtw89_vif_link *rtwvif_link, 959 const struct cfg80211_pkt_pattern *pkt_pattern, 960 struct rtw89_wow_cam_info *rtw_pattern) 961 { 962 u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0}; 963 u8 content[RTW89_MAX_PATTERN_SIZE] = {0}; 964 const u8 *mask; 965 const u8 *pattern; 966 u8 mask_len; 967 u16 count; 968 u32 len; 969 int i, ret; 970 971 pattern = pkt_pattern->pattern; 972 len = pkt_pattern->pattern_len; 973 mask = pkt_pattern->mask; 974 mask_len = DIV_ROUND_UP(len, 8); 975 memset(rtw_pattern, 0, sizeof(*rtw_pattern)); 976 977 ret = rtw89_wow_pattern_get_type(rtwvif_link, rtw_pattern, pattern, 978 mask[0] & GENMASK(5, 0)); 979 if (ret) 980 return ret; 981 982 /* translate mask from os to mask for hw 983 * pattern from OS uses 'ethenet frame', like this: 984 * | 6 | 6 | 2 | 20 | Variable | 4 | 985 * |--------+--------+------+-----------+------------+-----| 986 * | 802.3 Mac Header | IP Header | TCP Packet | FCS | 987 * | DA | SA | Type | 988 * 989 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC 990 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 | 991 * |-------------------+--------+------+-----------+------------+-----| 992 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS | 993 * | Others | Tpye | 994 * 995 * Therefore, we need translate mask_from_OS to mask_to_hw. 996 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0, 997 * because new mask[0~5] means 'SA', but our HW packet begins from LLC, 998 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match. 999 */ 1000 1001 /* Shift 6 bits */ 1002 for (i = 0; i < mask_len - 1; i++) { 1003 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) | 1004 u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2; 1005 } 1006 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)); 1007 1008 /* Set bit 0-5 to zero */ 1009 mask_hw[0] &= ~GENMASK(5, 0); 1010 1011 memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask)); 1012 1013 /* To get the wake up pattern from the mask. 1014 * We do not count first 12 bits which means 1015 * DA[6] and SA[6] in the pattern to match HW design. 1016 */ 1017 count = 0; 1018 for (i = 12; i < len; i++) { 1019 if ((mask[i / 8] >> (i % 8)) & 0x01) { 1020 content[count] = pattern[i]; 1021 count++; 1022 } 1023 } 1024 1025 rtw_pattern->crc = rtw89_calc_crc(content, count); 1026 1027 return 0; 1028 } 1029 1030 static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev, 1031 struct rtw89_vif_link *rtwvif_link, 1032 struct cfg80211_wowlan *wowlan) 1033 { 1034 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1035 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1036 int i; 1037 int ret; 1038 1039 if (!wowlan->n_patterns || !wowlan->patterns) 1040 return 0; 1041 1042 for (i = 0; i < wowlan->n_patterns; i++) { 1043 rtw_pattern = &rtw_wow->patterns[i]; 1044 ret = rtw89_wow_pattern_generate(rtwdev, rtwvif_link, 1045 &wowlan->patterns[i], 1046 rtw_pattern); 1047 if (ret) { 1048 rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i); 1049 rtw_wow->pattern_cnt = 0; 1050 return ret; 1051 } 1052 1053 rtw_pattern->r_w = true; 1054 rtw_pattern->idx = i; 1055 rtw_pattern->negative_pattern_match = false; 1056 rtw_pattern->skip_mac_hdr = true; 1057 rtw_pattern->valid = true; 1058 } 1059 rtw_wow->pattern_cnt = wowlan->n_patterns; 1060 1061 return 0; 1062 } 1063 1064 static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev) 1065 { 1066 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1067 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1068 int i = 0; 1069 1070 for (i = 0; i < rtw_wow->pattern_cnt; i++) { 1071 rtw_pattern = &rtw_wow->patterns[i]; 1072 rtw_pattern->valid = false; 1073 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern); 1074 } 1075 } 1076 1077 static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev) 1078 { 1079 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1080 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1081 int i; 1082 1083 for (i = 0; i < rtw_wow->pattern_cnt; i++) 1084 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i); 1085 } 1086 1087 static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev) 1088 { 1089 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1090 1091 rtw89_wow_pattern_clear_cam(rtwdev); 1092 1093 rtw_wow->pattern_cnt = 0; 1094 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns)); 1095 } 1096 1097 static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev) 1098 { 1099 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1100 1101 rtw_wow->rtwvif_link = NULL; 1102 rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM); 1103 rtw_wow->pattern_cnt = 0; 1104 rtw_wow->pno_inited = false; 1105 } 1106 1107 static void rtw89_wow_init_pno(struct rtw89_dev *rtwdev, 1108 struct cfg80211_sched_scan_request *nd_config) 1109 { 1110 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1111 1112 if (!nd_config->n_match_sets || !nd_config->n_channels) 1113 return; 1114 1115 rtw_wow->nd_config = nd_config; 1116 rtw_wow->pno_inited = true; 1117 1118 INIT_LIST_HEAD(&rtw_wow->pno_pkt_list); 1119 1120 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: net-detect is enabled\n"); 1121 } 1122 1123 static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev, 1124 struct cfg80211_wowlan *wowlan) 1125 { 1126 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1127 struct rtw89_vif_link *rtwvif_link; 1128 struct rtw89_vif *rtwvif; 1129 1130 if (wowlan->disconnect) 1131 set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags); 1132 if (wowlan->magic_pkt) 1133 set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags); 1134 if (wowlan->n_patterns && wowlan->patterns) 1135 set_bit(RTW89_WOW_FLAG_EN_PATTERN, rtw_wow->flags); 1136 1137 if (wowlan->nd_config) 1138 rtw89_wow_init_pno(rtwdev, wowlan->nd_config); 1139 1140 rtw89_for_each_rtwvif(rtwdev, rtwvif) { 1141 rtwvif_link = rtw89_get_designated_link(rtwvif); 1142 if (!rtwvif_link) 1143 continue; 1144 1145 rtw89_wow_vif_iter(rtwdev, rtwvif_link); 1146 } 1147 1148 rtwvif_link = rtw_wow->rtwvif_link; 1149 if (!rtwvif_link) 1150 return -EPERM; 1151 1152 return rtw89_wow_parse_patterns(rtwdev, rtwvif_link, wowlan); 1153 } 1154 1155 static int rtw89_wow_cfg_wake_pno(struct rtw89_dev *rtwdev, bool wow) 1156 { 1157 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1158 int ret; 1159 1160 ret = rtw89_fw_h2c_cfg_pno(rtwdev, rtwvif_link, true); 1161 if (ret) { 1162 rtw89_err(rtwdev, "failed to config pno\n"); 1163 return ret; 1164 } 1165 1166 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif_link, wow); 1167 if (ret) { 1168 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 1169 return ret; 1170 } 1171 1172 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif_link, wow); 1173 if (ret) { 1174 rtw89_err(rtwdev, "failed to fw wow global\n"); 1175 return ret; 1176 } 1177 1178 return 0; 1179 } 1180 1181 static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow) 1182 { 1183 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1184 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1185 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 1186 struct ieee80211_sta *wow_sta; 1187 struct rtw89_sta_link *rtwsta_link = NULL; 1188 struct rtw89_sta *rtwsta; 1189 int ret; 1190 1191 wow_sta = ieee80211_find_sta(wow_vif, wow_vif->cfg.ap_addr); 1192 if (wow_sta) { 1193 rtwsta = sta_to_rtwsta(wow_sta); 1194 rtwsta_link = rtwsta->links[rtwvif_link->link_id]; 1195 if (!rtwsta_link) 1196 return -ENOLINK; 1197 } 1198 1199 if (wow) { 1200 if (rtw_wow->pattern_cnt) 1201 rtwvif_link->wowlan_pattern = true; 1202 if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags)) 1203 rtwvif_link->wowlan_magic = true; 1204 } else { 1205 rtwvif_link->wowlan_pattern = false; 1206 rtwvif_link->wowlan_magic = false; 1207 } 1208 1209 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif_link, wow); 1210 if (ret) { 1211 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 1212 return ret; 1213 } 1214 1215 if (wow) { 1216 ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif_link, rtwsta_link); 1217 if (ret) { 1218 rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n", 1219 ret); 1220 return ret; 1221 } 1222 } 1223 1224 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif_link, rtwsta_link, NULL, 1225 RTW89_ROLE_INFO_CHANGE); 1226 if (ret) { 1227 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 1228 return ret; 1229 } 1230 1231 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif_link, wow); 1232 if (ret) { 1233 rtw89_err(rtwdev, "failed to fw wow global\n"); 1234 return ret; 1235 } 1236 1237 return 0; 1238 } 1239 1240 static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable) 1241 { 1242 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 1243 u8 polling; 1244 int ret; 1245 1246 ret = read_poll_timeout_atomic(rtw89_read8_mask, polling, 1247 wow_enable == !!polling, 1248 50, 50000, false, rtwdev, 1249 mac->wow_ctrl.addr, mac->wow_ctrl.mask); 1250 if (ret) 1251 rtw89_err(rtwdev, "failed to check wow status %s\n", 1252 str_enabled_disabled(wow_enable)); 1253 return ret; 1254 } 1255 1256 static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow) 1257 { 1258 enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL; 1259 enum rtw89_chip_gen chip_gen = rtwdev->chip->chip_gen; 1260 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1261 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1262 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 1263 enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id; 1264 const struct rtw89_chip_info *chip = rtwdev->chip; 1265 bool include_bb = !!chip->bbmcu_nr; 1266 bool disable_intr_for_dlfw = false; 1267 struct ieee80211_sta *wow_sta; 1268 struct rtw89_sta_link *rtwsta_link = NULL; 1269 struct rtw89_sta *rtwsta; 1270 bool is_conn = true; 1271 int ret; 1272 1273 if (chip_id == RTL8852C || chip_id == RTL8922A) 1274 disable_intr_for_dlfw = true; 1275 1276 wow_sta = ieee80211_find_sta(wow_vif, wow_vif->cfg.ap_addr); 1277 if (wow_sta) { 1278 rtwsta = sta_to_rtwsta(wow_sta); 1279 rtwsta_link = rtwsta->links[rtwvif_link->link_id]; 1280 if (!rtwsta_link) 1281 return -ENOLINK; 1282 } else { 1283 is_conn = false; 1284 } 1285 1286 if (disable_intr_for_dlfw) 1287 rtw89_hci_disable_intr(rtwdev); 1288 1289 ret = rtw89_fw_download(rtwdev, fw_type, include_bb); 1290 if (ret) { 1291 rtw89_warn(rtwdev, "download fw failed\n"); 1292 return ret; 1293 } 1294 1295 if (disable_intr_for_dlfw) 1296 rtw89_hci_enable_intr(rtwdev); 1297 1298 rtw89_phy_init_rf_reg(rtwdev, true); 1299 1300 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif_link, rtwsta_link, 1301 RTW89_ROLE_FW_RESTORE); 1302 if (ret) { 1303 rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); 1304 return ret; 1305 } 1306 1307 ret = rtw89_chip_h2c_assoc_cmac_tbl(rtwdev, rtwvif_link, rtwsta_link); 1308 if (ret) { 1309 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); 1310 return ret; 1311 } 1312 1313 if (!is_conn) 1314 rtw89_cam_reset_keys(rtwdev); 1315 1316 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif_link, rtwsta_link, !is_conn); 1317 if (ret) { 1318 rtw89_warn(rtwdev, "failed to send h2c join info\n"); 1319 return ret; 1320 } 1321 1322 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif_link, rtwsta_link, NULL, 1323 RTW89_ROLE_FW_RESTORE); 1324 if (ret) { 1325 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 1326 return ret; 1327 } 1328 1329 if (is_conn) { 1330 ret = rtw89_fw_h2c_general_pkt(rtwdev, rtwvif_link, rtwsta_link->mac_id); 1331 if (ret) { 1332 rtw89_warn(rtwdev, "failed to send h2c general packet\n"); 1333 return ret; 1334 } 1335 rtw89_phy_ra_assoc(rtwdev, rtwsta_link); 1336 rtw89_phy_set_bss_color(rtwdev, rtwvif_link); 1337 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, rtwvif_link); 1338 } 1339 1340 if (chip_gen == RTW89_CHIP_BE) 1341 rtw89_phy_rfk_pre_ntfy_and_wait(rtwdev, RTW89_PHY_0, 5); 1342 1343 rtw89_mac_hw_mgnt_sec(rtwdev, wow); 1344 1345 return 0; 1346 } 1347 1348 static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) 1349 { 1350 int ret; 1351 1352 rtw89_hci_ctrl_txdma_ch(rtwdev, false); 1353 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); 1354 1355 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); 1356 1357 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 1358 if (ret) { 1359 rtw89_err(rtwdev, "txdma ch busy\n"); 1360 return ret; 1361 } 1362 rtw89_wow_set_rx_filter(rtwdev, true); 1363 1364 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 1365 if (ret) { 1366 rtw89_err(rtwdev, "cfg ppdu status\n"); 1367 return ret; 1368 } 1369 1370 return 0; 1371 } 1372 1373 static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) 1374 { 1375 int ret; 1376 1377 rtw89_hci_disable_intr(rtwdev); 1378 rtw89_hci_ctrl_trxhci(rtwdev, false); 1379 1380 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 1381 if (ret) { 1382 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); 1383 return ret; 1384 } 1385 1386 ret = rtw89_wow_config_mac(rtwdev, true); 1387 if (ret) { 1388 rtw89_err(rtwdev, "failed to config mac\n"); 1389 return ret; 1390 } 1391 1392 rtw89_wow_set_rx_filter(rtwdev, false); 1393 rtw89_hci_reset(rtwdev); 1394 1395 return 0; 1396 } 1397 1398 static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) 1399 { 1400 int ret; 1401 1402 rtw89_hci_clr_idx_all(rtwdev); 1403 1404 ret = rtw89_hci_rst_bdram(rtwdev); 1405 if (ret) { 1406 rtw89_warn(rtwdev, "reset bdram busy\n"); 1407 return ret; 1408 } 1409 1410 rtw89_hci_ctrl_trxhci(rtwdev, true); 1411 rtw89_hci_ctrl_txdma_ch(rtwdev, true); 1412 1413 ret = rtw89_wow_config_mac(rtwdev, false); 1414 if (ret) { 1415 rtw89_err(rtwdev, "failed to config mac\n"); 1416 return ret; 1417 } 1418 1419 /* Before enabling interrupt, we need to get AOAC report by reg due to RX 1420 * not enabled yet. Also, we need to sync RX related IV from firmware to 1421 * mac80211 before receiving RX packets from driver. 1422 * After enabling interrupt, we can get AOAC report from h2c and c2h, and 1423 * can get TX IV and complete rekey info. We need to update TX related IV 1424 * and new GTK info if rekey happened. 1425 */ 1426 ret = rtw89_wow_get_aoac_rpt(rtwdev, false); 1427 if (!ret) 1428 rtw89_wow_update_key_info(rtwdev, false); 1429 1430 rtw89_hci_enable_intr(rtwdev); 1431 ret = rtw89_wow_get_aoac_rpt(rtwdev, true); 1432 if (!ret) 1433 rtw89_wow_update_key_info(rtwdev, true); 1434 1435 return 0; 1436 } 1437 1438 static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) 1439 { 1440 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1441 int ret; 1442 1443 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 1444 if (ret) 1445 rtw89_err(rtwdev, "cfg ppdu status\n"); 1446 1447 rtw89_fw_h2c_set_bcn_fltr_cfg(rtwdev, rtwvif_link, true); 1448 1449 return ret; 1450 } 1451 1452 static void rtw89_fw_release_pno_pkt_list(struct rtw89_dev *rtwdev, 1453 struct rtw89_vif_link *rtwvif_link) 1454 { 1455 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1456 struct list_head *pkt_list = &rtw_wow->pno_pkt_list; 1457 struct rtw89_pktofld_info *info, *tmp; 1458 1459 list_for_each_entry_safe(info, tmp, pkt_list, list) { 1460 rtw89_fw_h2c_del_pkt_offload(rtwdev, info->id); 1461 list_del(&info->list); 1462 kfree(info); 1463 } 1464 } 1465 1466 static int rtw89_pno_scan_update_probe_req(struct rtw89_dev *rtwdev, 1467 struct rtw89_vif_link *rtwvif_link) 1468 { 1469 static const u8 basic_rate_ie[] = {WLAN_EID_SUPP_RATES, 0x08, 1470 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c}; 1471 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1472 struct cfg80211_sched_scan_request *nd_config = rtw_wow->nd_config; 1473 u8 num = nd_config->n_match_sets, i; 1474 struct rtw89_pktofld_info *info; 1475 struct sk_buff *skb; 1476 int ret; 1477 1478 for (i = 0; i < num; i++) { 1479 skb = ieee80211_probereq_get(rtwdev->hw, rtwvif_link->mac_addr, 1480 nd_config->match_sets[i].ssid.ssid, 1481 nd_config->match_sets[i].ssid.ssid_len, 1482 nd_config->ie_len + sizeof(basic_rate_ie)); 1483 if (!skb) 1484 return -ENOMEM; 1485 1486 skb_put_data(skb, basic_rate_ie, sizeof(basic_rate_ie)); 1487 skb_put_data(skb, nd_config->ie, nd_config->ie_len); 1488 1489 info = kzalloc(sizeof(*info), GFP_KERNEL); 1490 if (!info) { 1491 kfree_skb(skb); 1492 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1493 return -ENOMEM; 1494 } 1495 1496 ret = rtw89_fw_h2c_add_pkt_offload(rtwdev, &info->id, skb); 1497 if (ret) { 1498 kfree_skb(skb); 1499 kfree(info); 1500 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1501 return ret; 1502 } 1503 1504 list_add_tail(&info->list, &rtw_wow->pno_pkt_list); 1505 kfree_skb(skb); 1506 } 1507 1508 return 0; 1509 } 1510 1511 static int rtw89_pno_scan_offload(struct rtw89_dev *rtwdev, bool enable) 1512 { 1513 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 1514 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1515 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1516 int interval = rtw_wow->nd_config->scan_plans[0].interval; 1517 struct rtw89_scan_option opt = {}; 1518 int ret; 1519 1520 if (enable) { 1521 ret = rtw89_pno_scan_update_probe_req(rtwdev, rtwvif_link); 1522 if (ret) { 1523 rtw89_err(rtwdev, "Update probe request failed\n"); 1524 return ret; 1525 } 1526 1527 ret = mac->add_chan_list_pno(rtwdev, rtwvif_link); 1528 if (ret) { 1529 rtw89_err(rtwdev, "Update channel list failed\n"); 1530 return ret; 1531 } 1532 } 1533 1534 opt.enable = enable; 1535 opt.repeat = RTW89_SCAN_NORMAL; 1536 opt.norm_pd = max(interval, 1) * 10; /* in unit of 100ms */ 1537 opt.delay = max(rtw_wow->nd_config->delay, 1) * 1000; 1538 1539 if (rtwdev->chip->chip_gen == RTW89_CHIP_BE) { 1540 opt.operation = enable ? RTW89_SCAN_OP_START : RTW89_SCAN_OP_STOP; 1541 opt.scan_mode = RTW89_SCAN_MODE_SA; 1542 opt.band = RTW89_PHY_0; 1543 opt.num_macc_role = 0; 1544 opt.mlo_mode = rtwdev->mlo_dbcc_mode; 1545 opt.num_opch = 0; 1546 opt.opch_end = RTW89_CHAN_INVALID; 1547 } 1548 1549 rtw89_mac_scan_offload(rtwdev, &opt, rtwvif_link, true); 1550 1551 return 0; 1552 } 1553 1554 static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) 1555 { 1556 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1557 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1558 int ret; 1559 1560 if (rtw89_wow_no_link(rtwdev)) { 1561 ret = rtw89_pno_scan_offload(rtwdev, false); 1562 if (ret) { 1563 rtw89_err(rtwdev, "wow: failed to disable pno scan offload\n"); 1564 return ret; 1565 } 1566 1567 ret = rtw89_pno_scan_offload(rtwdev, true); 1568 if (ret) { 1569 rtw89_err(rtwdev, "wow: failed to enable pno scan offload\n"); 1570 return ret; 1571 } 1572 } else { 1573 rtw89_wow_pattern_write(rtwdev); 1574 rtw89_wow_construct_key_info(rtwdev); 1575 1576 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif_link, true); 1577 if (ret) { 1578 rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); 1579 return ret; 1580 } 1581 1582 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif_link, true); 1583 if (ret) { 1584 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); 1585 return ret; 1586 } 1587 1588 ret = rtw89_fw_h2c_wow_gtk_ofld(rtwdev, rtwvif_link, true); 1589 if (ret) { 1590 rtw89_err(rtwdev, "wow: failed to enable GTK offload\n"); 1591 return ret; 1592 } 1593 1594 ret = rtw89_fw_h2c_arp_offload(rtwdev, rtwvif_link, true); 1595 if (ret) 1596 rtw89_warn(rtwdev, "wow: failed to enable arp offload\n"); 1597 } 1598 1599 if (rtw89_wow_no_link(rtwdev)) { 1600 ret = rtw89_wow_cfg_wake_pno(rtwdev, true); 1601 if (ret) { 1602 rtw89_err(rtwdev, "wow: failed to config wake PNO\n"); 1603 return ret; 1604 } 1605 } else { 1606 ret = rtw89_wow_cfg_wake(rtwdev, true); 1607 if (ret) { 1608 rtw89_err(rtwdev, "wow: failed to config wake\n"); 1609 return ret; 1610 } 1611 } 1612 1613 ret = rtw89_wow_check_fw_status(rtwdev, true); 1614 if (ret) { 1615 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); 1616 return ret; 1617 } 1618 1619 return 0; 1620 } 1621 1622 static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) 1623 { 1624 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1625 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1626 int ret; 1627 1628 if (rtw89_wow_no_link(rtwdev)) { 1629 ret = rtw89_pno_scan_offload(rtwdev, false); 1630 if (ret) { 1631 rtw89_err(rtwdev, "wow: failed to disable pno scan offload\n"); 1632 return ret; 1633 } 1634 1635 ret = rtw89_fw_h2c_cfg_pno(rtwdev, rtwvif_link, false); 1636 if (ret) { 1637 rtw89_err(rtwdev, "wow: failed to disable pno\n"); 1638 return ret; 1639 } 1640 1641 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1642 } else { 1643 rtw89_wow_pattern_clear(rtwdev); 1644 1645 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif_link, false); 1646 if (ret) { 1647 rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); 1648 return ret; 1649 } 1650 1651 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif_link, false); 1652 if (ret) { 1653 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); 1654 return ret; 1655 } 1656 1657 ret = rtw89_fw_h2c_wow_gtk_ofld(rtwdev, rtwvif_link, false); 1658 if (ret) { 1659 rtw89_err(rtwdev, "wow: failed to disable GTK offload\n"); 1660 return ret; 1661 } 1662 1663 ret = rtw89_fw_h2c_arp_offload(rtwdev, rtwvif_link, false); 1664 if (ret) 1665 rtw89_warn(rtwdev, "wow: failed to disable arp offload\n"); 1666 1667 rtw89_wow_key_clear(rtwdev); 1668 rtw89_fw_release_general_pkt_list(rtwdev, true); 1669 } 1670 1671 1672 ret = rtw89_wow_cfg_wake(rtwdev, false); 1673 if (ret) { 1674 rtw89_err(rtwdev, "wow: failed to disable config wake\n"); 1675 return ret; 1676 } 1677 1678 ret = rtw89_wow_check_fw_status(rtwdev, false); 1679 if (ret) { 1680 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); 1681 return ret; 1682 } 1683 1684 return 0; 1685 } 1686 1687 static int rtw89_wow_enable(struct rtw89_dev *rtwdev) 1688 { 1689 int ret; 1690 1691 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1692 1693 ret = rtw89_wow_enable_trx_pre(rtwdev); 1694 if (ret) { 1695 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); 1696 goto out; 1697 } 1698 1699 rtw89_fw_release_general_pkt_list(rtwdev, true); 1700 1701 ret = rtw89_wow_swap_fw(rtwdev, true); 1702 if (ret) { 1703 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); 1704 goto out; 1705 } 1706 1707 ret = rtw89_wow_fw_start(rtwdev); 1708 if (ret) { 1709 rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); 1710 goto out; 1711 } 1712 1713 rtw89_wow_enter_ps(rtwdev); 1714 1715 ret = rtw89_wow_enable_trx_post(rtwdev); 1716 if (ret) { 1717 rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); 1718 goto out; 1719 } 1720 1721 return 0; 1722 1723 out: 1724 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1725 return ret; 1726 } 1727 1728 static int rtw89_wow_disable(struct rtw89_dev *rtwdev) 1729 { 1730 int ret; 1731 1732 ret = rtw89_wow_disable_trx_pre(rtwdev); 1733 if (ret) { 1734 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 1735 goto out; 1736 } 1737 1738 rtw89_wow_leave_ps(rtwdev, false); 1739 1740 ret = rtw89_wow_fw_stop(rtwdev); 1741 if (ret) { 1742 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); 1743 goto out; 1744 } 1745 1746 ret = rtw89_wow_swap_fw(rtwdev, false); 1747 if (ret) { 1748 rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); 1749 goto out; 1750 } 1751 1752 ret = rtw89_wow_disable_trx_post(rtwdev); 1753 if (ret) { 1754 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 1755 goto out; 1756 } 1757 1758 out: 1759 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1760 return ret; 1761 } 1762 1763 static void rtw89_wow_restore_ps(struct rtw89_dev *rtwdev) 1764 { 1765 if (rtw89_wow_no_link(rtwdev)) 1766 rtw89_enter_ips(rtwdev); 1767 } 1768 1769 int rtw89_wow_resume(struct rtw89_dev *rtwdev) 1770 { 1771 int ret; 1772 1773 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { 1774 rtw89_err(rtwdev, "wow is not enabled\n"); 1775 ret = -EPERM; 1776 goto out; 1777 } 1778 1779 if (!rtw89_mac_get_power_state(rtwdev)) { 1780 rtw89_err(rtwdev, "chip is no power when resume\n"); 1781 ret = -EPERM; 1782 goto out; 1783 } 1784 1785 rtw89_wow_leave_deep_ps(rtwdev); 1786 1787 rtw89_wow_show_wakeup_reason(rtwdev); 1788 1789 ret = rtw89_wow_disable(rtwdev); 1790 if (ret) 1791 rtw89_err(rtwdev, "failed to disable wow\n"); 1792 1793 rtw89_wow_restore_ps(rtwdev); 1794 out: 1795 rtw89_wow_clear_wakeups(rtwdev); 1796 return ret; 1797 } 1798 1799 int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) 1800 { 1801 int ret; 1802 1803 ret = rtw89_wow_set_wakeups(rtwdev, wowlan); 1804 if (ret) { 1805 rtw89_err(rtwdev, "failed to set wakeup event\n"); 1806 return ret; 1807 } 1808 1809 rtw89_wow_leave_ps(rtwdev, true); 1810 1811 ret = rtw89_wow_enable(rtwdev); 1812 if (ret) { 1813 rtw89_err(rtwdev, "failed to enable wow\n"); 1814 return ret; 1815 } 1816 1817 rtw89_wow_enter_deep_ps(rtwdev); 1818 1819 return 0; 1820 } 1821