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