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