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