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 #if defined(__linux__) 21 struct rtw89_rsn_ie *rsn_ie; 22 #elif defined(__FreeBSD__) 23 const struct rtw89_rsn_ie *rsn_ie; 24 #endif 25 26 rsn = cfg80211_find_ie(WLAN_EID_RSN, ies, skb->len); 27 if (!rsn) 28 return; 29 30 #if defined(__linux__) 31 rsn_ie = (struct rtw89_rsn_ie *)rsn; 32 #elif defined(__FreeBSD__) 33 rsn_ie = (const struct rtw89_rsn_ie *)rsn; 34 #endif 35 rtw_wow->akm = rsn_ie->akm_cipher_suite.type; 36 } 37 38 #define RTW89_CIPHER_INFO_DEF(cipher) \ 39 {WLAN_CIPHER_SUITE_ ## cipher, .fw_alg = RTW89_WOW_FW_ALG_ ## cipher, \ 40 .len = WLAN_KEY_LEN_ ## cipher} 41 42 static const struct rtw89_cipher_info rtw89_cipher_info_defs[] = { 43 RTW89_CIPHER_INFO_DEF(WEP40), 44 RTW89_CIPHER_INFO_DEF(WEP104), 45 RTW89_CIPHER_INFO_DEF(TKIP), 46 RTW89_CIPHER_INFO_DEF(CCMP), 47 RTW89_CIPHER_INFO_DEF(GCMP), 48 RTW89_CIPHER_INFO_DEF(CCMP_256), 49 RTW89_CIPHER_INFO_DEF(GCMP_256), 50 RTW89_CIPHER_INFO_DEF(AES_CMAC), 51 }; 52 53 #undef RTW89_CIPHER_INFO_DEF 54 55 static const 56 struct rtw89_cipher_info *rtw89_cipher_alg_recognize(u32 cipher) 57 { 58 const struct rtw89_cipher_info *cipher_info_defs; 59 int i; 60 61 for (i = 0; i < ARRAY_SIZE(rtw89_cipher_info_defs); i++) { 62 cipher_info_defs = &rtw89_cipher_info_defs[i]; 63 if (cipher_info_defs->cipher == cipher) 64 return cipher_info_defs; 65 } 66 67 return NULL; 68 } 69 70 static int _pn_to_iv(struct rtw89_dev *rtwdev, struct ieee80211_key_conf *key, 71 u8 *iv, u64 pn, u8 key_idx) 72 { 73 switch (key->cipher) { 74 case WLAN_CIPHER_SUITE_TKIP: 75 iv[0] = u64_get_bits(pn, RTW89_KEY_PN_1); 76 iv[1] = (u64_get_bits(pn, RTW89_KEY_PN_1) | 0x20) & 0x7f; 77 iv[2] = u64_get_bits(pn, RTW89_KEY_PN_0); 78 break; 79 case WLAN_CIPHER_SUITE_CCMP: 80 case WLAN_CIPHER_SUITE_GCMP: 81 case WLAN_CIPHER_SUITE_CCMP_256: 82 case WLAN_CIPHER_SUITE_GCMP_256: 83 iv[0] = u64_get_bits(pn, RTW89_KEY_PN_0); 84 iv[1] = u64_get_bits(pn, RTW89_KEY_PN_1); 85 iv[2] = 0; 86 break; 87 default: 88 return -EINVAL; 89 } 90 91 iv[3] = BIT(5) | ((key_idx & 0x3) << 6); 92 iv[4] = u64_get_bits(pn, RTW89_KEY_PN_2); 93 iv[5] = u64_get_bits(pn, RTW89_KEY_PN_3); 94 iv[6] = u64_get_bits(pn, RTW89_KEY_PN_4); 95 iv[7] = u64_get_bits(pn, RTW89_KEY_PN_5); 96 97 return 0; 98 } 99 100 static int rtw89_rx_pn_to_iv(struct rtw89_dev *rtwdev, 101 struct ieee80211_key_conf *key, 102 u8 *iv) 103 { 104 struct ieee80211_key_seq seq; 105 int err; 106 u64 pn; 107 108 ieee80211_get_key_rx_seq(key, 0, &seq); 109 110 /* seq.ccmp.pn[] is BE order array */ 111 pn = u64_encode_bits(seq.ccmp.pn[0], RTW89_KEY_PN_5) | 112 u64_encode_bits(seq.ccmp.pn[1], RTW89_KEY_PN_4) | 113 u64_encode_bits(seq.ccmp.pn[2], RTW89_KEY_PN_3) | 114 u64_encode_bits(seq.ccmp.pn[3], RTW89_KEY_PN_2) | 115 u64_encode_bits(seq.ccmp.pn[4], RTW89_KEY_PN_1) | 116 u64_encode_bits(seq.ccmp.pn[5], RTW89_KEY_PN_0); 117 118 err = _pn_to_iv(rtwdev, key, iv, pn, key->keyidx); 119 if (err) 120 return err; 121 122 #if defined(__linux__) 123 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx to iv-%*ph\n", 124 __func__, key->keyidx, pn, 8, iv); 125 #elif defined(__FreeBSD__) 126 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%jx to iv-%*ph\n", 127 __func__, key->keyidx, (uintmax_t)pn, 8, iv); 128 #endif 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 #if defined(__linux__) 146 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx to iv-%*ph\n", 147 __func__, key->keyidx, pn, 8, iv); 148 #elif defined(__FreeBSD__) 149 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%jx to iv-%*ph\n", 150 __func__, key->keyidx, (uintmax_t)pn, 8, iv); 151 #endif 152 153 return 0; 154 } 155 156 static int _iv_to_pn(struct rtw89_dev *rtwdev, u8 *iv, u64 *pn, u8 *key_id, 157 struct ieee80211_key_conf *key) 158 { 159 switch (key->cipher) { 160 case WLAN_CIPHER_SUITE_TKIP: 161 *pn = u64_encode_bits(iv[2], RTW89_KEY_PN_0) | 162 u64_encode_bits(iv[0], RTW89_KEY_PN_1); 163 break; 164 case WLAN_CIPHER_SUITE_CCMP: 165 case WLAN_CIPHER_SUITE_GCMP: 166 case WLAN_CIPHER_SUITE_CCMP_256: 167 case WLAN_CIPHER_SUITE_GCMP_256: 168 *pn = u64_encode_bits(iv[0], RTW89_KEY_PN_0) | 169 u64_encode_bits(iv[1], RTW89_KEY_PN_1); 170 break; 171 default: 172 return -EINVAL; 173 } 174 175 *pn |= u64_encode_bits(iv[4], RTW89_KEY_PN_2) | 176 u64_encode_bits(iv[5], RTW89_KEY_PN_3) | 177 u64_encode_bits(iv[6], RTW89_KEY_PN_4) | 178 u64_encode_bits(iv[7], RTW89_KEY_PN_5); 179 180 if (key_id) 181 *key_id = *(iv + 3) >> 6; 182 183 return 0; 184 } 185 186 static int rtw89_rx_iv_to_pn(struct rtw89_dev *rtwdev, 187 struct ieee80211_key_conf *key, 188 u8 *iv) 189 { 190 struct ieee80211_key_seq seq; 191 int err; 192 u64 pn; 193 194 err = _iv_to_pn(rtwdev, iv, &pn, NULL, key); 195 if (err) 196 return err; 197 198 /* seq.ccmp.pn[] is BE order array */ 199 seq.ccmp.pn[0] = u64_get_bits(pn, RTW89_KEY_PN_5); 200 seq.ccmp.pn[1] = u64_get_bits(pn, RTW89_KEY_PN_4); 201 seq.ccmp.pn[2] = u64_get_bits(pn, RTW89_KEY_PN_3); 202 seq.ccmp.pn[3] = u64_get_bits(pn, RTW89_KEY_PN_2); 203 seq.ccmp.pn[4] = u64_get_bits(pn, RTW89_KEY_PN_1); 204 seq.ccmp.pn[5] = u64_get_bits(pn, RTW89_KEY_PN_0); 205 206 ieee80211_set_key_rx_seq(key, 0, &seq); 207 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d iv-%*ph to pn-%*ph\n", 208 __func__, key->keyidx, 8, iv, 6, seq.ccmp.pn); 209 210 return 0; 211 } 212 213 static int rtw89_tx_iv_to_pn(struct rtw89_dev *rtwdev, 214 struct ieee80211_key_conf *key, 215 u8 *iv) 216 { 217 int err; 218 u64 pn; 219 220 err = _iv_to_pn(rtwdev, iv, &pn, NULL, key); 221 if (err) 222 return err; 223 224 atomic64_set(&key->tx_pn, pn); 225 #if defined(__linux__) 226 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d iv-%*ph to pn-%llx\n", 227 __func__, key->keyidx, 8, iv, pn); 228 #elif defined(__FreeBSD__) 229 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d iv-%*ph to pn-%jx\n", 230 __func__, key->keyidx, 8, iv, (uintmax_t)pn); 231 #endif 232 233 return 0; 234 } 235 236 static int rtw89_rx_pn_get_pmf(struct rtw89_dev *rtwdev, 237 struct ieee80211_key_conf *key, 238 struct rtw89_wow_gtk_info *gtk_info) 239 { 240 struct ieee80211_key_seq seq; 241 u64 pn; 242 243 if (key->keyidx == 4) 244 memcpy(gtk_info->igtk[0], key->key, key->keylen); 245 else if (key->keyidx == 5) 246 memcpy(gtk_info->igtk[1], key->key, key->keylen); 247 else 248 return -EINVAL; 249 250 ieee80211_get_key_rx_seq(key, 0, &seq); 251 252 /* seq.ccmp.pn[] is BE order array */ 253 pn = u64_encode_bits(seq.ccmp.pn[0], RTW89_KEY_PN_5) | 254 u64_encode_bits(seq.ccmp.pn[1], RTW89_KEY_PN_4) | 255 u64_encode_bits(seq.ccmp.pn[2], RTW89_KEY_PN_3) | 256 u64_encode_bits(seq.ccmp.pn[3], RTW89_KEY_PN_2) | 257 u64_encode_bits(seq.ccmp.pn[4], RTW89_KEY_PN_1) | 258 u64_encode_bits(seq.ccmp.pn[5], RTW89_KEY_PN_0); 259 gtk_info->ipn = cpu_to_le64(pn); 260 gtk_info->igtk_keyid = cpu_to_le32(key->keyidx); 261 #if defined(__linux__) 262 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%llx\n", 263 __func__, key->keyidx, pn); 264 #elif defined(__FreeBSD__) 265 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%jx\n", 266 __func__, key->keyidx, (uintmax_t)pn); 267 #endif 268 269 return 0; 270 } 271 272 static int rtw89_rx_pn_set_pmf(struct rtw89_dev *rtwdev, 273 struct ieee80211_key_conf *key, 274 u64 pn) 275 { 276 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 277 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 278 struct ieee80211_key_seq seq; 279 280 if (key->keyidx != aoac_rpt->igtk_key_id) 281 return 0; 282 283 /* seq.ccmp.pn[] is BE order array */ 284 seq.ccmp.pn[0] = u64_get_bits(pn, RTW89_KEY_PN_5); 285 seq.ccmp.pn[1] = u64_get_bits(pn, RTW89_KEY_PN_4); 286 seq.ccmp.pn[2] = u64_get_bits(pn, RTW89_KEY_PN_3); 287 seq.ccmp.pn[3] = u64_get_bits(pn, RTW89_KEY_PN_2); 288 seq.ccmp.pn[4] = u64_get_bits(pn, RTW89_KEY_PN_1); 289 seq.ccmp.pn[5] = u64_get_bits(pn, RTW89_KEY_PN_0); 290 291 ieee80211_set_key_rx_seq(key, 0, &seq); 292 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s key %d pn-%*ph\n", 293 __func__, key->keyidx, 6, seq.ccmp.pn); 294 295 return 0; 296 } 297 298 static void rtw89_wow_get_key_info_iter(struct ieee80211_hw *hw, 299 struct ieee80211_vif *vif, 300 struct ieee80211_sta *sta, 301 struct ieee80211_key_conf *key, 302 void *data) 303 { 304 struct rtw89_dev *rtwdev = hw->priv; 305 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 306 struct rtw89_wow_key_info *key_info = &rtw_wow->key_info; 307 struct rtw89_wow_gtk_info *gtk_info = &rtw_wow->gtk_info; 308 const struct rtw89_cipher_info *cipher_info; 309 bool *err = data; 310 int ret; 311 312 cipher_info = rtw89_cipher_alg_recognize(key->cipher); 313 314 switch (key->cipher) { 315 case WLAN_CIPHER_SUITE_TKIP: 316 case WLAN_CIPHER_SUITE_CCMP: 317 case WLAN_CIPHER_SUITE_GCMP: 318 case WLAN_CIPHER_SUITE_CCMP_256: 319 case WLAN_CIPHER_SUITE_GCMP_256: 320 if (sta) { 321 ret = rtw89_tx_pn_to_iv(rtwdev, key, 322 key_info->ptk_tx_iv); 323 if (ret) 324 goto err; 325 ret = rtw89_rx_pn_to_iv(rtwdev, key, 326 key_info->ptk_rx_iv); 327 if (ret) 328 goto err; 329 330 rtw_wow->ptk_alg = cipher_info->fw_alg; 331 rtw_wow->ptk_keyidx = key->keyidx; 332 } else { 333 ret = rtw89_rx_pn_to_iv(rtwdev, key, 334 key_info->gtk_rx_iv[key->keyidx]); 335 if (ret) 336 goto err; 337 338 rtw_wow->gtk_alg = cipher_info->fw_alg; 339 key_info->gtk_keyidx = key->keyidx; 340 } 341 break; 342 case WLAN_CIPHER_SUITE_AES_CMAC: 343 ret = rtw89_rx_pn_get_pmf(rtwdev, key, gtk_info); 344 if (ret) 345 goto err; 346 break; 347 case WLAN_CIPHER_SUITE_WEP40: 348 case WLAN_CIPHER_SUITE_WEP104: 349 /* WEP only set group key in mac80211, but fw need to set 350 * both of pairwise key and group key. 351 */ 352 rtw_wow->ptk_alg = cipher_info->fw_alg; 353 rtw_wow->ptk_keyidx = key->keyidx; 354 rtw_wow->gtk_alg = cipher_info->fw_alg; 355 key_info->gtk_keyidx = key->keyidx; 356 break; 357 default: 358 rtw89_debug(rtwdev, RTW89_DBG_WOW, "unsupport cipher %x\n", 359 key->cipher); 360 goto err; 361 } 362 363 return; 364 err: 365 *err = true; 366 } 367 368 static void rtw89_wow_set_key_info_iter(struct ieee80211_hw *hw, 369 struct ieee80211_vif *vif, 370 struct ieee80211_sta *sta, 371 struct ieee80211_key_conf *key, 372 void *data) 373 { 374 struct rtw89_dev *rtwdev = hw->priv; 375 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 376 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 377 struct rtw89_set_key_info_iter_data *iter_data = data; 378 bool update_tx_key_info = iter_data->rx_ready; 379 int ret; 380 381 switch (key->cipher) { 382 case WLAN_CIPHER_SUITE_TKIP: 383 case WLAN_CIPHER_SUITE_CCMP: 384 case WLAN_CIPHER_SUITE_GCMP: 385 case WLAN_CIPHER_SUITE_CCMP_256: 386 case WLAN_CIPHER_SUITE_GCMP_256: 387 if (sta && !update_tx_key_info) { 388 ret = rtw89_rx_iv_to_pn(rtwdev, key, 389 aoac_rpt->ptk_rx_iv); 390 if (ret) 391 goto err; 392 } 393 394 if (sta && update_tx_key_info) { 395 ret = rtw89_tx_iv_to_pn(rtwdev, key, 396 aoac_rpt->ptk_tx_iv); 397 if (ret) 398 goto err; 399 } 400 401 if (!sta && !update_tx_key_info) { 402 ret = rtw89_rx_iv_to_pn(rtwdev, key, 403 aoac_rpt->gtk_rx_iv[key->keyidx]); 404 if (ret) 405 goto err; 406 } 407 408 if (!sta && update_tx_key_info && aoac_rpt->rekey_ok) 409 iter_data->gtk_cipher = key->cipher; 410 break; 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 if (update_tx_key_info) { 413 if (aoac_rpt->rekey_ok) 414 iter_data->igtk_cipher = key->cipher; 415 } else { 416 ret = rtw89_rx_pn_set_pmf(rtwdev, key, 417 aoac_rpt->igtk_ipn); 418 if (ret) 419 goto err; 420 } 421 break; 422 case WLAN_CIPHER_SUITE_WEP40: 423 case WLAN_CIPHER_SUITE_WEP104: 424 break; 425 default: 426 rtw89_debug(rtwdev, RTW89_DBG_WOW, "unsupport cipher %x\n", 427 key->cipher); 428 goto err; 429 } 430 431 return; 432 433 err: 434 iter_data->error = true; 435 } 436 437 static void rtw89_wow_key_clear(struct rtw89_dev *rtwdev) 438 { 439 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 440 441 memset(&rtw_wow->aoac_rpt, 0, sizeof(rtw_wow->aoac_rpt)); 442 memset(&rtw_wow->gtk_info, 0, sizeof(rtw_wow->gtk_info)); 443 memset(&rtw_wow->key_info, 0, sizeof(rtw_wow->key_info)); 444 rtw_wow->ptk_alg = 0; 445 rtw_wow->gtk_alg = 0; 446 } 447 448 static void rtw89_wow_construct_key_info(struct rtw89_dev *rtwdev) 449 { 450 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 451 struct rtw89_wow_key_info *key_info = &rtw_wow->key_info; 452 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 453 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 454 bool err = false; 455 456 rcu_read_lock(); 457 ieee80211_iter_keys_rcu(rtwdev->hw, wow_vif, 458 rtw89_wow_get_key_info_iter, &err); 459 rcu_read_unlock(); 460 461 if (err) { 462 rtw89_wow_key_clear(rtwdev); 463 return; 464 } 465 466 key_info->valid_check = RTW89_WOW_VALID_CHECK; 467 key_info->symbol_check_en = RTW89_WOW_SYMBOL_CHK_PTK | 468 RTW89_WOW_SYMBOL_CHK_GTK; 469 } 470 471 static void rtw89_wow_debug_aoac_rpt(struct rtw89_dev *rtwdev) 472 { 473 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 474 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 475 476 if (!rtw89_debug_is_enabled(rtwdev, RTW89_DBG_WOW)) 477 return; 478 479 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] rpt_ver = %d\n", 480 aoac_rpt->rpt_ver); 481 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] sec_type = %d\n", 482 aoac_rpt->sec_type); 483 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] key_idx = %d\n", 484 aoac_rpt->key_idx); 485 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] pattern_idx = %d\n", 486 aoac_rpt->pattern_idx); 487 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] rekey_ok = %d\n", 488 aoac_rpt->rekey_ok); 489 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] ptk_tx_iv = %*ph\n", 490 8, aoac_rpt->ptk_tx_iv); 491 rtw89_debug(rtwdev, RTW89_DBG_WOW, 492 "[aoac_rpt] eapol_key_replay_count = %*ph\n", 493 8, aoac_rpt->eapol_key_replay_count); 494 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] ptk_rx_iv = %*ph\n", 495 8, aoac_rpt->ptk_rx_iv); 496 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[0] = %*ph\n", 497 8, aoac_rpt->gtk_rx_iv[0]); 498 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[1] = %*ph\n", 499 8, aoac_rpt->gtk_rx_iv[1]); 500 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[2] = %*ph\n", 501 8, aoac_rpt->gtk_rx_iv[2]); 502 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] gtk_rx_iv[3] = %*ph\n", 503 8, aoac_rpt->gtk_rx_iv[3]); 504 #if defined(__linux__) 505 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_key_id = %llu\n", 506 aoac_rpt->igtk_key_id); 507 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_ipn = %llu\n", 508 aoac_rpt->igtk_ipn); 509 #elif defined(__FreeBSD__) 510 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_key_id = %ju\n", 511 (uintmax_t)aoac_rpt->igtk_key_id); 512 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk_ipn = %ju\n", 513 (uintmax_t)aoac_rpt->igtk_ipn); 514 #endif 515 rtw89_debug(rtwdev, RTW89_DBG_WOW, "[aoac_rpt] igtk = %*ph\n", 516 32, aoac_rpt->igtk); 517 } 518 519 static int rtw89_wow_get_aoac_rpt_reg(struct rtw89_dev *rtwdev) 520 { 521 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 522 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 523 struct rtw89_mac_c2h_info c2h_info = {}; 524 struct rtw89_mac_h2c_info h2c_info = {}; 525 u8 igtk_ipn[8]; 526 u8 key_idx; 527 int ret; 528 529 h2c_info.id = RTW89_FWCMD_H2CREG_FUNC_AOAC_RPT_1; 530 h2c_info.content_len = 2; 531 ret = rtw89_fw_msg_reg(rtwdev, &h2c_info, &c2h_info); 532 if (ret) 533 return ret; 534 535 aoac_rpt->key_idx = 536 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_1_W0_KEY_IDX); 537 key_idx = aoac_rpt->key_idx; 538 aoac_rpt->gtk_rx_iv[key_idx][0] = 539 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_0); 540 aoac_rpt->gtk_rx_iv[key_idx][1] = 541 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_1); 542 aoac_rpt->gtk_rx_iv[key_idx][2] = 543 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_2); 544 aoac_rpt->gtk_rx_iv[key_idx][3] = 545 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_1_W1_IV_3); 546 aoac_rpt->gtk_rx_iv[key_idx][4] = 547 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_4); 548 aoac_rpt->gtk_rx_iv[key_idx][5] = 549 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_5); 550 aoac_rpt->gtk_rx_iv[key_idx][6] = 551 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_6); 552 aoac_rpt->gtk_rx_iv[key_idx][7] = 553 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_1_W2_IV_7); 554 aoac_rpt->ptk_rx_iv[0] = 555 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_0); 556 aoac_rpt->ptk_rx_iv[1] = 557 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_1); 558 aoac_rpt->ptk_rx_iv[2] = 559 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_2); 560 aoac_rpt->ptk_rx_iv[3] = 561 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_1_W3_PTK_IV_3); 562 563 h2c_info.id = RTW89_FWCMD_H2CREG_FUNC_AOAC_RPT_2; 564 h2c_info.content_len = 2; 565 ret = rtw89_fw_msg_reg(rtwdev, &h2c_info, &c2h_info); 566 if (ret) 567 return ret; 568 569 aoac_rpt->ptk_rx_iv[4] = 570 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_2_W0_PTK_IV_4); 571 aoac_rpt->ptk_rx_iv[5] = 572 u32_get_bits(c2h_info.u.c2hreg[0], RTW89_C2HREG_AOAC_RPT_2_W0_PTK_IV_5); 573 aoac_rpt->ptk_rx_iv[6] = 574 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_PTK_IV_6); 575 aoac_rpt->ptk_rx_iv[7] = 576 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_PTK_IV_7); 577 igtk_ipn[0] = 578 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_IGTK_IPN_IV_0); 579 igtk_ipn[1] = 580 u32_get_bits(c2h_info.u.c2hreg[1], RTW89_C2HREG_AOAC_RPT_2_W1_IGTK_IPN_IV_1); 581 igtk_ipn[2] = 582 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_2); 583 igtk_ipn[3] = 584 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_3); 585 igtk_ipn[4] = 586 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_4); 587 igtk_ipn[5] = 588 u32_get_bits(c2h_info.u.c2hreg[2], RTW89_C2HREG_AOAC_RPT_2_W2_IGTK_IPN_IV_5); 589 igtk_ipn[6] = 590 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_2_W3_IGTK_IPN_IV_6); 591 igtk_ipn[7] = 592 u32_get_bits(c2h_info.u.c2hreg[3], RTW89_C2HREG_AOAC_RPT_2_W3_IGTK_IPN_IV_7); 593 aoac_rpt->igtk_ipn = u64_encode_bits(igtk_ipn[0], RTW89_IGTK_IPN_0) | 594 u64_encode_bits(igtk_ipn[1], RTW89_IGTK_IPN_1) | 595 u64_encode_bits(igtk_ipn[2], RTW89_IGTK_IPN_2) | 596 u64_encode_bits(igtk_ipn[3], RTW89_IGTK_IPN_3) | 597 u64_encode_bits(igtk_ipn[4], RTW89_IGTK_IPN_4) | 598 u64_encode_bits(igtk_ipn[5], RTW89_IGTK_IPN_5) | 599 u64_encode_bits(igtk_ipn[6], RTW89_IGTK_IPN_6) | 600 u64_encode_bits(igtk_ipn[7], RTW89_IGTK_IPN_7); 601 602 return 0; 603 } 604 605 static int rtw89_wow_get_aoac_rpt(struct rtw89_dev *rtwdev, bool rx_ready) 606 { 607 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 608 int ret; 609 610 if (!rtw_wow->ptk_alg) 611 return -EPERM; 612 613 if (!rx_ready) { 614 ret = rtw89_wow_get_aoac_rpt_reg(rtwdev); 615 if (ret) { 616 rtw89_err(rtwdev, "wow: failed to get aoac rpt by reg\n"); 617 return ret; 618 } 619 } else { 620 ret = rtw89_fw_h2c_wow_request_aoac(rtwdev); 621 if (ret) { 622 rtw89_err(rtwdev, "wow: failed to get aoac rpt by pkt\n"); 623 return ret; 624 } 625 } 626 627 rtw89_wow_debug_aoac_rpt(rtwdev); 628 629 return 0; 630 } 631 632 static struct ieee80211_key_conf *rtw89_wow_gtk_rekey(struct rtw89_dev *rtwdev, 633 u32 cipher, u8 keyidx, u8 *gtk) 634 { 635 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 636 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 637 const struct rtw89_cipher_info *cipher_info; 638 struct ieee80211_key_conf *rekey_conf; 639 struct ieee80211_key_conf *key; 640 u8 sz; 641 642 cipher_info = rtw89_cipher_alg_recognize(cipher); 643 sz = struct_size(rekey_conf, key, cipher_info->len); 644 rekey_conf = kmalloc(sz, GFP_KERNEL); 645 if (!rekey_conf) 646 return NULL; 647 648 rekey_conf->cipher = cipher; 649 rekey_conf->keyidx = keyidx; 650 rekey_conf->keylen = cipher_info->len; 651 memcpy(rekey_conf->key, gtk, 652 flex_array_size(rekey_conf, key, cipher_info->len)); 653 654 /* ieee80211_gtk_rekey_add() will call set_key(), therefore we 655 * need to unlock mutex 656 */ 657 mutex_unlock(&rtwdev->mutex); 658 if (ieee80211_vif_is_mld(wow_vif)) 659 key = ieee80211_gtk_rekey_add(wow_vif, rekey_conf, rtwvif_link->link_id); 660 else 661 key = ieee80211_gtk_rekey_add(wow_vif, rekey_conf, -1); 662 mutex_lock(&rtwdev->mutex); 663 664 kfree(rekey_conf); 665 if (IS_ERR(key)) { 666 rtw89_err(rtwdev, "ieee80211_gtk_rekey_add failed\n"); 667 return NULL; 668 } 669 670 return key; 671 } 672 673 static void rtw89_wow_update_key_info(struct rtw89_dev *rtwdev, bool rx_ready) 674 { 675 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 676 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 677 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 678 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 679 struct rtw89_set_key_info_iter_data data = {.error = false, 680 .rx_ready = rx_ready}; 681 struct ieee80211_bss_conf *bss_conf; 682 struct ieee80211_key_conf *key; 683 684 rcu_read_lock(); 685 ieee80211_iter_keys_rcu(rtwdev->hw, wow_vif, 686 rtw89_wow_set_key_info_iter, &data); 687 rcu_read_unlock(); 688 689 if (data.error) { 690 rtw89_debug(rtwdev, RTW89_DBG_WOW, "%s error\n", __func__); 691 return; 692 } 693 694 if (!data.gtk_cipher) 695 return; 696 697 key = rtw89_wow_gtk_rekey(rtwdev, data.gtk_cipher, aoac_rpt->key_idx, 698 aoac_rpt->gtk); 699 if (!key) 700 return; 701 702 rtw89_rx_iv_to_pn(rtwdev, key, 703 aoac_rpt->gtk_rx_iv[key->keyidx]); 704 705 if (!data.igtk_cipher) 706 return; 707 708 key = rtw89_wow_gtk_rekey(rtwdev, data.igtk_cipher, aoac_rpt->igtk_key_id, 709 aoac_rpt->igtk); 710 if (!key) 711 return; 712 713 rtw89_rx_pn_set_pmf(rtwdev, key, aoac_rpt->igtk_ipn); 714 715 rcu_read_lock(); 716 717 bss_conf = rtw89_vif_rcu_dereference_link(rtwvif_link, true); 718 ieee80211_gtk_rekey_notify(wow_vif, bss_conf->bssid, 719 aoac_rpt->eapol_key_replay_count, 720 GFP_ATOMIC); 721 722 rcu_read_unlock(); 723 } 724 725 static void rtw89_wow_leave_deep_ps(struct rtw89_dev *rtwdev) 726 { 727 __rtw89_leave_ps_mode(rtwdev); 728 } 729 730 static void rtw89_wow_enter_deep_ps(struct rtw89_dev *rtwdev) 731 { 732 __rtw89_enter_ps_mode(rtwdev); 733 } 734 735 static void rtw89_wow_enter_ps(struct rtw89_dev *rtwdev) 736 { 737 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 738 739 if (rtw89_wow_mgd_linked(rtwdev)) 740 rtw89_enter_lps(rtwdev, rtwvif_link->rtwvif, false); 741 else if (rtw89_wow_no_link(rtwdev)) 742 rtw89_fw_h2c_fwips(rtwdev, rtwvif_link, true); 743 } 744 745 static void rtw89_wow_leave_ps(struct rtw89_dev *rtwdev, bool enable_wow) 746 { 747 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 748 749 if (rtw89_wow_mgd_linked(rtwdev)) { 750 rtw89_leave_lps(rtwdev); 751 } else if (rtw89_wow_no_link(rtwdev)) { 752 if (enable_wow) 753 rtw89_leave_ips(rtwdev); 754 else 755 rtw89_fw_h2c_fwips(rtwdev, rtwvif_link, false); 756 } 757 } 758 759 static int rtw89_wow_config_mac(struct rtw89_dev *rtwdev, bool enable_wow) 760 { 761 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 762 763 return mac->wow_config_mac(rtwdev, enable_wow); 764 } 765 766 static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable) 767 { 768 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 769 enum rtw89_mac_fwd_target fwd_target = enable ? 770 RTW89_FWD_DONT_CARE : 771 RTW89_FWD_TO_HOST; 772 773 mac->typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0); 774 mac->typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0); 775 mac->typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0); 776 } 777 778 static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev) 779 { 780 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 781 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 782 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 783 struct rtw89_wow_aoac_report *aoac_rpt = &rtw_wow->aoac_rpt; 784 struct cfg80211_wowlan_nd_info nd_info; 785 struct cfg80211_wowlan_wakeup wakeup = { 786 .pattern_idx = -1, 787 }; 788 u32 wow_reason_reg; 789 u8 reason; 790 791 if (RTW89_CHK_FW_FEATURE(WOW_REASON_V1, &rtwdev->fw)) 792 wow_reason_reg = rtwdev->chip->wow_reason_reg[RTW89_WOW_REASON_V1]; 793 else 794 wow_reason_reg = rtwdev->chip->wow_reason_reg[RTW89_WOW_REASON_V0]; 795 796 reason = rtw89_read8(rtwdev, wow_reason_reg); 797 switch (reason) { 798 case RTW89_WOW_RSN_RX_DEAUTH: 799 wakeup.disconnect = true; 800 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n"); 801 break; 802 case RTW89_WOW_RSN_DISCONNECT: 803 wakeup.disconnect = true; 804 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n"); 805 break; 806 case RTW89_WOW_RSN_RX_MAGIC_PKT: 807 wakeup.magic_pkt = true; 808 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n"); 809 break; 810 case RTW89_WOW_RSN_RX_GTK_REKEY: 811 wakeup.gtk_rekey_failure = true; 812 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n"); 813 break; 814 case RTW89_WOW_RSN_RX_PATTERN_MATCH: 815 wakeup.pattern_idx = aoac_rpt->pattern_idx; 816 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n"); 817 break; 818 case RTW89_WOW_RSN_RX_NLO: 819 /* Current firmware and driver don't report ssid index. 820 * Use 0 for n_matches based on its comment. 821 */ 822 nd_info.n_matches = 0; 823 wakeup.net_detect = &nd_info; 824 rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n"); 825 break; 826 default: 827 rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason); 828 ieee80211_report_wowlan_wakeup(wow_vif, NULL, GFP_KERNEL); 829 return; 830 } 831 832 ieee80211_report_wowlan_wakeup(wow_vif, &wakeup, GFP_KERNEL); 833 } 834 835 static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, 836 struct rtw89_vif_link *rtwvif_link) 837 { 838 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 839 struct ieee80211_vif *vif = rtwvif_link_to_vif(rtwvif_link); 840 841 /* Current WoWLAN function support setting of only vif in 842 * infra mode or no link mode. When one suitable vif is found, 843 * stop the iteration. 844 */ 845 if (rtw_wow->rtwvif_link || vif->type != NL80211_IFTYPE_STATION) 846 return; 847 848 switch (rtwvif_link->net_type) { 849 case RTW89_NET_TYPE_INFRA: 850 if (rtw_wow_has_mgd_features(rtwdev)) 851 rtw_wow->rtwvif_link = rtwvif_link; 852 break; 853 case RTW89_NET_TYPE_NO_LINK: 854 if (rtw_wow->pno_inited) 855 rtw_wow->rtwvif_link = rtwvif_link; 856 break; 857 default: 858 break; 859 } 860 } 861 862 static u16 __rtw89_cal_crc16(u8 data, u16 crc) 863 { 864 u8 shift_in, data_bit; 865 u8 crc_bit4, crc_bit11, crc_bit15; 866 u16 crc_result; 867 int index; 868 869 for (index = 0; index < 8; index++) { 870 crc_bit15 = crc & BIT(15) ? 1 : 0; 871 data_bit = data & BIT(index) ? 1 : 0; 872 shift_in = crc_bit15 ^ data_bit; 873 874 crc_result = crc << 1; 875 876 if (shift_in == 0) 877 crc_result &= ~BIT(0); 878 else 879 crc_result |= BIT(0); 880 881 crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in; 882 883 if (crc_bit11 == 0) 884 crc_result &= ~BIT(12); 885 else 886 crc_result |= BIT(12); 887 888 crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in; 889 890 if (crc_bit4 == 0) 891 crc_result &= ~BIT(5); 892 else 893 crc_result |= BIT(5); 894 895 crc = crc_result; 896 } 897 return crc; 898 } 899 900 static u16 rtw89_calc_crc(u8 *pdata, int length) 901 { 902 u16 crc = 0xffff; 903 int i; 904 905 for (i = 0; i < length; i++) 906 crc = __rtw89_cal_crc16(pdata[i], crc); 907 908 /* get 1' complement */ 909 return ~crc; 910 } 911 912 static int rtw89_wow_pattern_get_type(struct rtw89_vif_link *rtwvif_link, 913 struct rtw89_wow_cam_info *rtw_pattern, 914 const u8 *pattern, u8 da_mask) 915 { 916 u8 da[ETH_ALEN]; 917 918 ether_addr_copy_mask(da, pattern, da_mask); 919 920 /* Each pattern is divided into different kinds by DA address 921 * a. DA is broadcast address: set bc = 0; 922 * b. DA is multicast address: set mc = 0 923 * c. DA is unicast address same as dev's mac address: set uc = 0 924 * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0 925 * e. Others is invalid type. 926 */ 927 928 if (is_broadcast_ether_addr(da)) 929 rtw_pattern->bc = true; 930 else if (is_multicast_ether_addr(da)) 931 rtw_pattern->mc = true; 932 else if (ether_addr_equal(da, rtwvif_link->mac_addr) && 933 da_mask == GENMASK(5, 0)) 934 rtw_pattern->uc = true; 935 else if (!da_mask) /*da_mask == 0 mean wildcard*/ 936 return 0; 937 else 938 return -EPERM; 939 940 return 0; 941 } 942 943 static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev, 944 struct rtw89_vif_link *rtwvif_link, 945 const struct cfg80211_pkt_pattern *pkt_pattern, 946 struct rtw89_wow_cam_info *rtw_pattern) 947 { 948 u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0}; 949 u8 content[RTW89_MAX_PATTERN_SIZE] = {0}; 950 const u8 *mask; 951 const u8 *pattern; 952 u8 mask_len; 953 u16 count; 954 u32 len; 955 int i, ret; 956 957 pattern = pkt_pattern->pattern; 958 len = pkt_pattern->pattern_len; 959 mask = pkt_pattern->mask; 960 mask_len = DIV_ROUND_UP(len, 8); 961 memset(rtw_pattern, 0, sizeof(*rtw_pattern)); 962 963 ret = rtw89_wow_pattern_get_type(rtwvif_link, rtw_pattern, pattern, 964 mask[0] & GENMASK(5, 0)); 965 if (ret) 966 return ret; 967 968 /* translate mask from os to mask for hw 969 * pattern from OS uses 'ethenet frame', like this: 970 * | 6 | 6 | 2 | 20 | Variable | 4 | 971 * |--------+--------+------+-----------+------------+-----| 972 * | 802.3 Mac Header | IP Header | TCP Packet | FCS | 973 * | DA | SA | Type | 974 * 975 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC 976 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 | 977 * |-------------------+--------+------+-----------+------------+-----| 978 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS | 979 * | Others | Tpye | 980 * 981 * Therefore, we need translate mask_from_OS to mask_to_hw. 982 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0, 983 * because new mask[0~5] means 'SA', but our HW packet begins from LLC, 984 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match. 985 */ 986 987 /* Shift 6 bits */ 988 for (i = 0; i < mask_len - 1; i++) { 989 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) | 990 u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2; 991 } 992 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)); 993 994 /* Set bit 0-5 to zero */ 995 mask_hw[0] &= ~GENMASK(5, 0); 996 997 memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask)); 998 999 /* To get the wake up pattern from the mask. 1000 * We do not count first 12 bits which means 1001 * DA[6] and SA[6] in the pattern to match HW design. 1002 */ 1003 count = 0; 1004 for (i = 12; i < len; i++) { 1005 if ((mask[i / 8] >> (i % 8)) & 0x01) { 1006 content[count] = pattern[i]; 1007 count++; 1008 } 1009 } 1010 1011 rtw_pattern->crc = rtw89_calc_crc(content, count); 1012 1013 return 0; 1014 } 1015 1016 static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev, 1017 struct rtw89_vif_link *rtwvif_link, 1018 struct cfg80211_wowlan *wowlan) 1019 { 1020 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1021 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1022 int i; 1023 int ret; 1024 1025 if (!wowlan->n_patterns || !wowlan->patterns) 1026 return 0; 1027 1028 for (i = 0; i < wowlan->n_patterns; i++) { 1029 rtw_pattern = &rtw_wow->patterns[i]; 1030 ret = rtw89_wow_pattern_generate(rtwdev, rtwvif_link, 1031 &wowlan->patterns[i], 1032 rtw_pattern); 1033 if (ret) { 1034 rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i); 1035 rtw_wow->pattern_cnt = 0; 1036 return ret; 1037 } 1038 1039 rtw_pattern->r_w = true; 1040 rtw_pattern->idx = i; 1041 rtw_pattern->negative_pattern_match = false; 1042 rtw_pattern->skip_mac_hdr = true; 1043 rtw_pattern->valid = true; 1044 } 1045 rtw_wow->pattern_cnt = wowlan->n_patterns; 1046 1047 return 0; 1048 } 1049 1050 static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev) 1051 { 1052 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1053 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1054 int i = 0; 1055 1056 for (i = 0; i < rtw_wow->pattern_cnt; i++) { 1057 rtw_pattern = &rtw_wow->patterns[i]; 1058 rtw_pattern->valid = false; 1059 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern); 1060 } 1061 } 1062 1063 static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev) 1064 { 1065 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1066 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 1067 int i; 1068 1069 for (i = 0; i < rtw_wow->pattern_cnt; i++) 1070 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i); 1071 } 1072 1073 static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev) 1074 { 1075 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1076 1077 rtw89_wow_pattern_clear_cam(rtwdev); 1078 1079 rtw_wow->pattern_cnt = 0; 1080 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns)); 1081 } 1082 1083 static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev) 1084 { 1085 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1086 1087 rtw_wow->rtwvif_link = NULL; 1088 rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM); 1089 rtw_wow->pattern_cnt = 0; 1090 rtw_wow->pno_inited = false; 1091 } 1092 1093 static void rtw89_wow_init_pno(struct rtw89_dev *rtwdev, 1094 struct cfg80211_sched_scan_request *nd_config) 1095 { 1096 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1097 1098 if (!nd_config->n_match_sets || !nd_config->n_channels) 1099 return; 1100 1101 rtw_wow->nd_config = nd_config; 1102 rtw_wow->pno_inited = true; 1103 1104 INIT_LIST_HEAD(&rtw_wow->pno_pkt_list); 1105 1106 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: net-detect is enabled\n"); 1107 } 1108 1109 static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev, 1110 struct cfg80211_wowlan *wowlan) 1111 { 1112 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1113 struct rtw89_vif_link *rtwvif_link; 1114 struct rtw89_vif *rtwvif; 1115 1116 if (wowlan->disconnect) 1117 set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags); 1118 if (wowlan->magic_pkt) 1119 set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags); 1120 if (wowlan->n_patterns && wowlan->patterns) 1121 set_bit(RTW89_WOW_FLAG_EN_PATTERN, rtw_wow->flags); 1122 1123 if (wowlan->nd_config) 1124 rtw89_wow_init_pno(rtwdev, wowlan->nd_config); 1125 1126 rtw89_for_each_rtwvif(rtwdev, rtwvif) { 1127 /* use the link on HW-0 to do wow flow */ 1128 rtwvif_link = rtw89_vif_get_link_inst(rtwvif, 0); 1129 if (!rtwvif_link) 1130 continue; 1131 1132 rtw89_wow_vif_iter(rtwdev, rtwvif_link); 1133 } 1134 1135 rtwvif_link = rtw_wow->rtwvif_link; 1136 if (!rtwvif_link) 1137 return -EPERM; 1138 1139 return rtw89_wow_parse_patterns(rtwdev, rtwvif_link, wowlan); 1140 } 1141 1142 static int rtw89_wow_cfg_wake_pno(struct rtw89_dev *rtwdev, bool wow) 1143 { 1144 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1145 int ret; 1146 1147 ret = rtw89_fw_h2c_cfg_pno(rtwdev, rtwvif_link, true); 1148 if (ret) { 1149 rtw89_err(rtwdev, "failed to config pno\n"); 1150 return ret; 1151 } 1152 1153 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif_link, wow); 1154 if (ret) { 1155 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 1156 return ret; 1157 } 1158 1159 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif_link, wow); 1160 if (ret) { 1161 rtw89_err(rtwdev, "failed to fw wow global\n"); 1162 return ret; 1163 } 1164 1165 return 0; 1166 } 1167 1168 static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow) 1169 { 1170 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1171 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1172 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 1173 struct ieee80211_sta *wow_sta; 1174 struct rtw89_sta_link *rtwsta_link = NULL; 1175 struct rtw89_sta *rtwsta; 1176 int ret; 1177 1178 wow_sta = ieee80211_find_sta(wow_vif, wow_vif->cfg.ap_addr); 1179 if (wow_sta) { 1180 rtwsta = sta_to_rtwsta(wow_sta); 1181 rtwsta_link = rtwsta->links[rtwvif_link->link_id]; 1182 if (!rtwsta_link) 1183 return -ENOLINK; 1184 } 1185 1186 if (wow) { 1187 if (rtw_wow->pattern_cnt) 1188 rtwvif_link->wowlan_pattern = true; 1189 if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags)) 1190 rtwvif_link->wowlan_magic = true; 1191 } else { 1192 rtwvif_link->wowlan_pattern = false; 1193 rtwvif_link->wowlan_magic = false; 1194 } 1195 1196 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif_link, wow); 1197 if (ret) { 1198 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 1199 return ret; 1200 } 1201 1202 if (wow) { 1203 ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif_link, rtwsta_link); 1204 if (ret) { 1205 rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n", 1206 ret); 1207 return ret; 1208 } 1209 } 1210 1211 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif_link, rtwsta_link, NULL); 1212 if (ret) { 1213 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 1214 return ret; 1215 } 1216 1217 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif_link, wow); 1218 if (ret) { 1219 rtw89_err(rtwdev, "failed to fw wow global\n"); 1220 return ret; 1221 } 1222 1223 return 0; 1224 } 1225 1226 static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable) 1227 { 1228 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 1229 u8 polling; 1230 int ret; 1231 1232 ret = read_poll_timeout_atomic(rtw89_read8_mask, polling, 1233 wow_enable == !!polling, 1234 50, 50000, false, rtwdev, 1235 mac->wow_ctrl.addr, mac->wow_ctrl.mask); 1236 if (ret) 1237 rtw89_err(rtwdev, "failed to check wow status %s\n", 1238 wow_enable ? "enabled" : "disabled"); 1239 return ret; 1240 } 1241 1242 static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow) 1243 { 1244 enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL; 1245 enum rtw89_chip_gen chip_gen = rtwdev->chip->chip_gen; 1246 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1247 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1248 struct ieee80211_vif *wow_vif = rtwvif_link_to_vif(rtwvif_link); 1249 enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id; 1250 const struct rtw89_chip_info *chip = rtwdev->chip; 1251 bool include_bb = !!chip->bbmcu_nr; 1252 bool disable_intr_for_dlfw = false; 1253 struct ieee80211_sta *wow_sta; 1254 struct rtw89_sta_link *rtwsta_link = NULL; 1255 struct rtw89_sta *rtwsta; 1256 bool is_conn = true; 1257 int ret; 1258 1259 if (chip_id == RTL8852C || chip_id == RTL8922A) 1260 disable_intr_for_dlfw = true; 1261 1262 wow_sta = ieee80211_find_sta(wow_vif, wow_vif->cfg.ap_addr); 1263 if (wow_sta) { 1264 rtwsta = sta_to_rtwsta(wow_sta); 1265 rtwsta_link = rtwsta->links[rtwvif_link->link_id]; 1266 if (!rtwsta_link) 1267 return -ENOLINK; 1268 } else { 1269 is_conn = false; 1270 } 1271 1272 if (disable_intr_for_dlfw) 1273 rtw89_hci_disable_intr(rtwdev); 1274 1275 ret = rtw89_fw_download(rtwdev, fw_type, include_bb); 1276 if (ret) { 1277 rtw89_warn(rtwdev, "download fw failed\n"); 1278 return ret; 1279 } 1280 1281 if (disable_intr_for_dlfw) 1282 rtw89_hci_enable_intr(rtwdev); 1283 1284 rtw89_phy_init_rf_reg(rtwdev, true); 1285 1286 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif_link, rtwsta_link, 1287 RTW89_ROLE_FW_RESTORE); 1288 if (ret) { 1289 rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); 1290 return ret; 1291 } 1292 1293 ret = rtw89_chip_h2c_assoc_cmac_tbl(rtwdev, rtwvif_link, rtwsta_link); 1294 if (ret) { 1295 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); 1296 return ret; 1297 } 1298 1299 if (!is_conn) 1300 rtw89_cam_reset_keys(rtwdev); 1301 1302 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif_link, rtwsta_link, !is_conn); 1303 if (ret) { 1304 rtw89_warn(rtwdev, "failed to send h2c join info\n"); 1305 return ret; 1306 } 1307 1308 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif_link, rtwsta_link, NULL); 1309 if (ret) { 1310 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 1311 return ret; 1312 } 1313 1314 if (is_conn) { 1315 ret = rtw89_fw_h2c_general_pkt(rtwdev, rtwvif_link, rtwsta_link->mac_id); 1316 if (ret) { 1317 rtw89_warn(rtwdev, "failed to send h2c general packet\n"); 1318 return ret; 1319 } 1320 rtw89_phy_ra_assoc(rtwdev, rtwsta_link); 1321 rtw89_phy_set_bss_color(rtwdev, rtwvif_link); 1322 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, rtwvif_link); 1323 } 1324 1325 if (chip_gen == RTW89_CHIP_BE) 1326 rtw89_phy_rfk_pre_ntfy_and_wait(rtwdev, RTW89_PHY_0, 5); 1327 1328 rtw89_mac_hw_mgnt_sec(rtwdev, wow); 1329 1330 return 0; 1331 } 1332 1333 static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) 1334 { 1335 int ret; 1336 1337 rtw89_hci_ctrl_txdma_ch(rtwdev, false); 1338 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); 1339 1340 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); 1341 1342 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 1343 if (ret) { 1344 rtw89_err(rtwdev, "txdma ch busy\n"); 1345 return ret; 1346 } 1347 rtw89_wow_set_rx_filter(rtwdev, true); 1348 1349 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 1350 if (ret) { 1351 rtw89_err(rtwdev, "cfg ppdu status\n"); 1352 return ret; 1353 } 1354 1355 return 0; 1356 } 1357 1358 static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) 1359 { 1360 int ret; 1361 1362 rtw89_hci_disable_intr(rtwdev); 1363 rtw89_hci_ctrl_trxhci(rtwdev, false); 1364 1365 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 1366 if (ret) { 1367 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); 1368 return ret; 1369 } 1370 1371 ret = rtw89_wow_config_mac(rtwdev, true); 1372 if (ret) { 1373 rtw89_err(rtwdev, "failed to config mac\n"); 1374 return ret; 1375 } 1376 1377 rtw89_wow_set_rx_filter(rtwdev, false); 1378 rtw89_hci_reset(rtwdev); 1379 1380 return 0; 1381 } 1382 1383 static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) 1384 { 1385 int ret; 1386 1387 rtw89_hci_clr_idx_all(rtwdev); 1388 1389 ret = rtw89_hci_rst_bdram(rtwdev); 1390 if (ret) { 1391 rtw89_warn(rtwdev, "reset bdram busy\n"); 1392 return ret; 1393 } 1394 1395 rtw89_hci_ctrl_trxhci(rtwdev, true); 1396 rtw89_hci_ctrl_txdma_ch(rtwdev, true); 1397 1398 ret = rtw89_wow_config_mac(rtwdev, false); 1399 if (ret) { 1400 rtw89_err(rtwdev, "failed to config mac\n"); 1401 return ret; 1402 } 1403 1404 /* Before enabling interrupt, we need to get AOAC report by reg due to RX 1405 * not enabled yet. Also, we need to sync RX related IV from firmware to 1406 * mac80211 before receiving RX packets from driver. 1407 * After enabling interrupt, we can get AOAC report from h2c and c2h, and 1408 * can get TX IV and complete rekey info. We need to update TX related IV 1409 * and new GTK info if rekey happened. 1410 */ 1411 ret = rtw89_wow_get_aoac_rpt(rtwdev, false); 1412 if (!ret) 1413 rtw89_wow_update_key_info(rtwdev, false); 1414 1415 rtw89_hci_enable_intr(rtwdev); 1416 ret = rtw89_wow_get_aoac_rpt(rtwdev, true); 1417 if (!ret) 1418 rtw89_wow_update_key_info(rtwdev, true); 1419 1420 return 0; 1421 } 1422 1423 static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) 1424 { 1425 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1426 int ret; 1427 1428 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 1429 if (ret) 1430 rtw89_err(rtwdev, "cfg ppdu status\n"); 1431 1432 rtw89_fw_h2c_set_bcn_fltr_cfg(rtwdev, rtwvif_link, true); 1433 1434 return ret; 1435 } 1436 1437 static void rtw89_fw_release_pno_pkt_list(struct rtw89_dev *rtwdev, 1438 struct rtw89_vif_link *rtwvif_link) 1439 { 1440 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1441 struct list_head *pkt_list = &rtw_wow->pno_pkt_list; 1442 struct rtw89_pktofld_info *info, *tmp; 1443 1444 list_for_each_entry_safe(info, tmp, pkt_list, list) { 1445 rtw89_fw_h2c_del_pkt_offload(rtwdev, info->id); 1446 list_del(&info->list); 1447 kfree(info); 1448 } 1449 } 1450 1451 static int rtw89_pno_scan_update_probe_req(struct rtw89_dev *rtwdev, 1452 struct rtw89_vif_link *rtwvif_link) 1453 { 1454 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1455 struct cfg80211_sched_scan_request *nd_config = rtw_wow->nd_config; 1456 u8 num = nd_config->n_match_sets, i; 1457 struct rtw89_pktofld_info *info; 1458 struct sk_buff *skb; 1459 int ret; 1460 1461 for (i = 0; i < num; i++) { 1462 skb = ieee80211_probereq_get(rtwdev->hw, rtwvif_link->mac_addr, 1463 nd_config->match_sets[i].ssid.ssid, 1464 nd_config->match_sets[i].ssid.ssid_len, 1465 nd_config->ie_len); 1466 if (!skb) 1467 return -ENOMEM; 1468 1469 skb_put_data(skb, nd_config->ie, nd_config->ie_len); 1470 1471 info = kzalloc(sizeof(*info), GFP_KERNEL); 1472 if (!info) { 1473 kfree_skb(skb); 1474 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1475 return -ENOMEM; 1476 } 1477 1478 ret = rtw89_fw_h2c_add_pkt_offload(rtwdev, &info->id, skb); 1479 if (ret) { 1480 kfree_skb(skb); 1481 kfree(info); 1482 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1483 return ret; 1484 } 1485 1486 list_add_tail(&info->list, &rtw_wow->pno_pkt_list); 1487 kfree_skb(skb); 1488 } 1489 1490 return 0; 1491 } 1492 1493 static int rtw89_pno_scan_offload(struct rtw89_dev *rtwdev, bool enable) 1494 { 1495 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 1496 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1497 struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link; 1498 int interval = rtw_wow->nd_config->scan_plans[0].interval; 1499 struct rtw89_scan_option opt = {}; 1500 int ret; 1501 1502 if (enable) { 1503 ret = rtw89_pno_scan_update_probe_req(rtwdev, rtwvif_link); 1504 if (ret) { 1505 rtw89_err(rtwdev, "Update probe request failed\n"); 1506 return ret; 1507 } 1508 1509 ret = mac->add_chan_list_pno(rtwdev, rtwvif_link); 1510 if (ret) { 1511 rtw89_err(rtwdev, "Update channel list failed\n"); 1512 return ret; 1513 } 1514 } 1515 1516 opt.enable = enable; 1517 opt.repeat = RTW89_SCAN_NORMAL; 1518 opt.norm_pd = max(interval, 1) * 10; /* in unit of 100ms */ 1519 opt.delay = max(rtw_wow->nd_config->delay, 1); 1520 1521 if (rtwdev->chip->chip_gen == RTW89_CHIP_BE) { 1522 opt.operation = enable ? RTW89_SCAN_OP_START : RTW89_SCAN_OP_STOP; 1523 opt.scan_mode = RTW89_SCAN_MODE_SA; 1524 opt.band = RTW89_PHY_0; 1525 opt.num_macc_role = 0; 1526 opt.mlo_mode = rtwdev->mlo_dbcc_mode; 1527 opt.num_opch = 0; 1528 opt.opch_end = RTW89_CHAN_INVALID; 1529 } 1530 1531 mac->scan_offload(rtwdev, &opt, rtwvif_link, true); 1532 1533 return 0; 1534 } 1535 1536 static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) 1537 { 1538 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1539 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1540 int ret; 1541 1542 if (rtw89_wow_no_link(rtwdev)) { 1543 ret = rtw89_pno_scan_offload(rtwdev, false); 1544 if (ret) { 1545 rtw89_err(rtwdev, "wow: failed to disable pno scan offload\n"); 1546 return ret; 1547 } 1548 1549 ret = rtw89_pno_scan_offload(rtwdev, true); 1550 if (ret) { 1551 rtw89_err(rtwdev, "wow: failed to enable pno scan offload\n"); 1552 return ret; 1553 } 1554 } else { 1555 rtw89_wow_pattern_write(rtwdev); 1556 rtw89_wow_construct_key_info(rtwdev); 1557 1558 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif_link, true); 1559 if (ret) { 1560 rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); 1561 return ret; 1562 } 1563 1564 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif_link, true); 1565 if (ret) { 1566 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); 1567 return ret; 1568 } 1569 1570 ret = rtw89_fw_h2c_wow_gtk_ofld(rtwdev, rtwvif_link, true); 1571 if (ret) { 1572 rtw89_err(rtwdev, "wow: failed to enable GTK offload\n"); 1573 return ret; 1574 } 1575 1576 ret = rtw89_fw_h2c_arp_offload(rtwdev, rtwvif_link, true); 1577 if (ret) 1578 rtw89_warn(rtwdev, "wow: failed to enable arp offload\n"); 1579 } 1580 1581 if (rtw89_wow_no_link(rtwdev)) { 1582 ret = rtw89_wow_cfg_wake_pno(rtwdev, true); 1583 if (ret) { 1584 rtw89_err(rtwdev, "wow: failed to config wake PNO\n"); 1585 return ret; 1586 } 1587 } else { 1588 ret = rtw89_wow_cfg_wake(rtwdev, true); 1589 if (ret) { 1590 rtw89_err(rtwdev, "wow: failed to config wake\n"); 1591 return ret; 1592 } 1593 } 1594 1595 ret = rtw89_wow_check_fw_status(rtwdev, true); 1596 if (ret) { 1597 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); 1598 return ret; 1599 } 1600 1601 return 0; 1602 } 1603 1604 static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) 1605 { 1606 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 1607 struct rtw89_vif_link *rtwvif_link = rtw_wow->rtwvif_link; 1608 int ret; 1609 1610 if (rtw89_wow_no_link(rtwdev)) { 1611 ret = rtw89_pno_scan_offload(rtwdev, false); 1612 if (ret) { 1613 rtw89_err(rtwdev, "wow: failed to disable pno scan offload\n"); 1614 return ret; 1615 } 1616 1617 ret = rtw89_fw_h2c_cfg_pno(rtwdev, rtwvif_link, false); 1618 if (ret) { 1619 rtw89_err(rtwdev, "wow: failed to disable pno\n"); 1620 return ret; 1621 } 1622 1623 rtw89_fw_release_pno_pkt_list(rtwdev, rtwvif_link); 1624 } else { 1625 rtw89_wow_pattern_clear(rtwdev); 1626 1627 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif_link, false); 1628 if (ret) { 1629 rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); 1630 return ret; 1631 } 1632 1633 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif_link, false); 1634 if (ret) { 1635 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); 1636 return ret; 1637 } 1638 1639 ret = rtw89_fw_h2c_wow_gtk_ofld(rtwdev, rtwvif_link, false); 1640 if (ret) { 1641 rtw89_err(rtwdev, "wow: failed to disable GTK offload\n"); 1642 return ret; 1643 } 1644 1645 ret = rtw89_fw_h2c_arp_offload(rtwdev, rtwvif_link, false); 1646 if (ret) 1647 rtw89_warn(rtwdev, "wow: failed to disable arp offload\n"); 1648 1649 rtw89_wow_key_clear(rtwdev); 1650 rtw89_fw_release_general_pkt_list(rtwdev, true); 1651 } 1652 1653 1654 ret = rtw89_wow_cfg_wake(rtwdev, false); 1655 if (ret) { 1656 rtw89_err(rtwdev, "wow: failed to disable config wake\n"); 1657 return ret; 1658 } 1659 1660 ret = rtw89_wow_check_fw_status(rtwdev, false); 1661 if (ret) { 1662 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); 1663 return ret; 1664 } 1665 1666 return 0; 1667 } 1668 1669 static int rtw89_wow_enable(struct rtw89_dev *rtwdev) 1670 { 1671 int ret; 1672 1673 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1674 1675 ret = rtw89_wow_enable_trx_pre(rtwdev); 1676 if (ret) { 1677 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); 1678 goto out; 1679 } 1680 1681 rtw89_fw_release_general_pkt_list(rtwdev, true); 1682 1683 ret = rtw89_wow_swap_fw(rtwdev, true); 1684 if (ret) { 1685 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); 1686 goto out; 1687 } 1688 1689 ret = rtw89_wow_fw_start(rtwdev); 1690 if (ret) { 1691 rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); 1692 goto out; 1693 } 1694 1695 rtw89_wow_enter_ps(rtwdev); 1696 1697 ret = rtw89_wow_enable_trx_post(rtwdev); 1698 if (ret) { 1699 rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); 1700 goto out; 1701 } 1702 1703 return 0; 1704 1705 out: 1706 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1707 return ret; 1708 } 1709 1710 static int rtw89_wow_disable(struct rtw89_dev *rtwdev) 1711 { 1712 int ret; 1713 1714 ret = rtw89_wow_disable_trx_pre(rtwdev); 1715 if (ret) { 1716 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 1717 goto out; 1718 } 1719 1720 rtw89_wow_leave_ps(rtwdev, false); 1721 1722 ret = rtw89_wow_fw_stop(rtwdev); 1723 if (ret) { 1724 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); 1725 goto out; 1726 } 1727 1728 ret = rtw89_wow_swap_fw(rtwdev, false); 1729 if (ret) { 1730 rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); 1731 goto out; 1732 } 1733 1734 ret = rtw89_wow_disable_trx_post(rtwdev); 1735 if (ret) { 1736 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 1737 goto out; 1738 } 1739 1740 out: 1741 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 1742 return ret; 1743 } 1744 1745 static void rtw89_wow_restore_ps(struct rtw89_dev *rtwdev) 1746 { 1747 if (rtw89_wow_no_link(rtwdev)) 1748 rtw89_enter_ips(rtwdev); 1749 } 1750 1751 int rtw89_wow_resume(struct rtw89_dev *rtwdev) 1752 { 1753 int ret; 1754 1755 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { 1756 rtw89_err(rtwdev, "wow is not enabled\n"); 1757 ret = -EPERM; 1758 goto out; 1759 } 1760 1761 if (!rtw89_mac_get_power_state(rtwdev)) { 1762 rtw89_err(rtwdev, "chip is no power when resume\n"); 1763 ret = -EPERM; 1764 goto out; 1765 } 1766 1767 rtw89_wow_leave_deep_ps(rtwdev); 1768 1769 rtw89_wow_show_wakeup_reason(rtwdev); 1770 1771 ret = rtw89_wow_disable(rtwdev); 1772 if (ret) 1773 rtw89_err(rtwdev, "failed to disable wow\n"); 1774 1775 rtw89_wow_restore_ps(rtwdev); 1776 out: 1777 rtw89_wow_clear_wakeups(rtwdev); 1778 return ret; 1779 } 1780 1781 int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) 1782 { 1783 int ret; 1784 1785 ret = rtw89_wow_set_wakeups(rtwdev, wowlan); 1786 if (ret) { 1787 rtw89_err(rtwdev, "failed to set wakeup event\n"); 1788 return ret; 1789 } 1790 1791 rtw89_wow_leave_ps(rtwdev, true); 1792 1793 ret = rtw89_wow_enable(rtwdev); 1794 if (ret) { 1795 rtw89_err(rtwdev, "failed to enable wow\n"); 1796 return ret; 1797 } 1798 1799 rtw89_wow_enter_deep_ps(rtwdev); 1800 1801 return 0; 1802 } 1803