1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2009-2012 Realtek Corporation.*/ 3 4 #include "wifi.h" 5 #include "rc.h" 6 #include "base.h" 7 #include "efuse.h" 8 #include "cam.h" 9 #include "ps.h" 10 #include "regd.h" 11 #include "pci.h" 12 #include <linux/ip.h> 13 #include <linux/module.h> 14 #include <linux/udp.h> 15 16 /* 17 *NOTICE!!!: This file will be very big, we should 18 *keep it clear under following roles: 19 * 20 *This file include following parts, so, if you add new 21 *functions into this file, please check which part it 22 *should includes. or check if you should add new part 23 *for this file: 24 * 25 *1) mac80211 init functions 26 *2) tx information functions 27 *3) functions called by core.c 28 *4) wq & timer callback functions 29 *5) frame process functions 30 *6) IOT functions 31 *7) sysfs functions 32 *8) vif functions 33 *9) ... 34 */ 35 36 /********************************************************* 37 * 38 * mac80211 init functions 39 * 40 *********************************************************/ 41 static struct ieee80211_channel rtl_channeltable_2g[] = { 42 {.center_freq = 2412, .hw_value = 1,}, 43 {.center_freq = 2417, .hw_value = 2,}, 44 {.center_freq = 2422, .hw_value = 3,}, 45 {.center_freq = 2427, .hw_value = 4,}, 46 {.center_freq = 2432, .hw_value = 5,}, 47 {.center_freq = 2437, .hw_value = 6,}, 48 {.center_freq = 2442, .hw_value = 7,}, 49 {.center_freq = 2447, .hw_value = 8,}, 50 {.center_freq = 2452, .hw_value = 9,}, 51 {.center_freq = 2457, .hw_value = 10,}, 52 {.center_freq = 2462, .hw_value = 11,}, 53 {.center_freq = 2467, .hw_value = 12,}, 54 {.center_freq = 2472, .hw_value = 13,}, 55 {.center_freq = 2484, .hw_value = 14,}, 56 }; 57 58 static struct ieee80211_channel rtl_channeltable_5g[] = { 59 {.center_freq = 5180, .hw_value = 36,}, 60 {.center_freq = 5200, .hw_value = 40,}, 61 {.center_freq = 5220, .hw_value = 44,}, 62 {.center_freq = 5240, .hw_value = 48,}, 63 {.center_freq = 5260, .hw_value = 52,}, 64 {.center_freq = 5280, .hw_value = 56,}, 65 {.center_freq = 5300, .hw_value = 60,}, 66 {.center_freq = 5320, .hw_value = 64,}, 67 {.center_freq = 5500, .hw_value = 100,}, 68 {.center_freq = 5520, .hw_value = 104,}, 69 {.center_freq = 5540, .hw_value = 108,}, 70 {.center_freq = 5560, .hw_value = 112,}, 71 {.center_freq = 5580, .hw_value = 116,}, 72 {.center_freq = 5600, .hw_value = 120,}, 73 {.center_freq = 5620, .hw_value = 124,}, 74 {.center_freq = 5640, .hw_value = 128,}, 75 {.center_freq = 5660, .hw_value = 132,}, 76 {.center_freq = 5680, .hw_value = 136,}, 77 {.center_freq = 5700, .hw_value = 140,}, 78 {.center_freq = 5745, .hw_value = 149,}, 79 {.center_freq = 5765, .hw_value = 153,}, 80 {.center_freq = 5785, .hw_value = 157,}, 81 {.center_freq = 5805, .hw_value = 161,}, 82 {.center_freq = 5825, .hw_value = 165,}, 83 }; 84 85 static struct ieee80211_rate rtl_ratetable_2g[] = { 86 {.bitrate = 10, .hw_value = 0x00,}, 87 {.bitrate = 20, .hw_value = 0x01,}, 88 {.bitrate = 55, .hw_value = 0x02,}, 89 {.bitrate = 110, .hw_value = 0x03,}, 90 {.bitrate = 60, .hw_value = 0x04,}, 91 {.bitrate = 90, .hw_value = 0x05,}, 92 {.bitrate = 120, .hw_value = 0x06,}, 93 {.bitrate = 180, .hw_value = 0x07,}, 94 {.bitrate = 240, .hw_value = 0x08,}, 95 {.bitrate = 360, .hw_value = 0x09,}, 96 {.bitrate = 480, .hw_value = 0x0a,}, 97 {.bitrate = 540, .hw_value = 0x0b,}, 98 }; 99 100 static struct ieee80211_rate rtl_ratetable_5g[] = { 101 {.bitrate = 60, .hw_value = 0x04,}, 102 {.bitrate = 90, .hw_value = 0x05,}, 103 {.bitrate = 120, .hw_value = 0x06,}, 104 {.bitrate = 180, .hw_value = 0x07,}, 105 {.bitrate = 240, .hw_value = 0x08,}, 106 {.bitrate = 360, .hw_value = 0x09,}, 107 {.bitrate = 480, .hw_value = 0x0a,}, 108 {.bitrate = 540, .hw_value = 0x0b,}, 109 }; 110 111 static const struct ieee80211_supported_band rtl_band_2ghz = { 112 .band = NL80211_BAND_2GHZ, 113 114 .channels = rtl_channeltable_2g, 115 .n_channels = ARRAY_SIZE(rtl_channeltable_2g), 116 117 .bitrates = rtl_ratetable_2g, 118 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g), 119 120 .ht_cap = {0}, 121 }; 122 123 static struct ieee80211_supported_band rtl_band_5ghz = { 124 .band = NL80211_BAND_5GHZ, 125 126 .channels = rtl_channeltable_5g, 127 .n_channels = ARRAY_SIZE(rtl_channeltable_5g), 128 129 .bitrates = rtl_ratetable_5g, 130 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g), 131 132 .ht_cap = {0}, 133 }; 134 135 static const u8 tid_to_ac[] = { 136 2, /* IEEE80211_AC_BE */ 137 3, /* IEEE80211_AC_BK */ 138 3, /* IEEE80211_AC_BK */ 139 2, /* IEEE80211_AC_BE */ 140 1, /* IEEE80211_AC_VI */ 141 1, /* IEEE80211_AC_VI */ 142 0, /* IEEE80211_AC_VO */ 143 0, /* IEEE80211_AC_VO */ 144 }; 145 146 u8 rtl_tid_to_ac(u8 tid) 147 { 148 return tid_to_ac[tid]; 149 } 150 EXPORT_SYMBOL_GPL(rtl_tid_to_ac); 151 152 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw, 153 struct ieee80211_sta_ht_cap *ht_cap) 154 { 155 struct rtl_priv *rtlpriv = rtl_priv(hw); 156 struct rtl_phy *rtlphy = &(rtlpriv->phy); 157 158 ht_cap->ht_supported = true; 159 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 160 IEEE80211_HT_CAP_SGI_40 | 161 IEEE80211_HT_CAP_SGI_20 | 162 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU; 163 164 if (rtlpriv->rtlhal.disable_amsdu_8k) 165 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 166 167 /* 168 *Maximum length of AMPDU that the STA can receive. 169 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 170 */ 171 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 172 173 /*Minimum MPDU start spacing , */ 174 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 175 176 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 177 178 /*hw->wiphy->bands[NL80211_BAND_2GHZ] 179 *base on ant_num 180 *rx_mask: RX mask 181 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7 182 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15 183 *if rx_ant >= 3 rx_mask[2]= 0xff; 184 *if BW_40 rx_mask[4]= 0x01; 185 *highest supported RX rate 186 */ 187 if (rtlpriv->dm.supp_phymode_switch) { 188 pr_info("Support phy mode switch\n"); 189 190 ht_cap->mcs.rx_mask[0] = 0xFF; 191 ht_cap->mcs.rx_mask[1] = 0xFF; 192 ht_cap->mcs.rx_mask[4] = 0x01; 193 194 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); 195 } else { 196 if (get_rf_type(rtlphy) == RF_1T2R || 197 get_rf_type(rtlphy) == RF_2T2R) { 198 rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, 199 "1T2R or 2T2R\n"); 200 ht_cap->mcs.rx_mask[0] = 0xFF; 201 ht_cap->mcs.rx_mask[1] = 0xFF; 202 ht_cap->mcs.rx_mask[4] = 0x01; 203 204 ht_cap->mcs.rx_highest = 205 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); 206 } else if (get_rf_type(rtlphy) == RF_1T1R) { 207 rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n"); 208 209 ht_cap->mcs.rx_mask[0] = 0xFF; 210 ht_cap->mcs.rx_mask[1] = 0x00; 211 ht_cap->mcs.rx_mask[4] = 0x01; 212 213 ht_cap->mcs.rx_highest = 214 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7); 215 } 216 } 217 } 218 219 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw, 220 struct ieee80211_sta_vht_cap *vht_cap) 221 { 222 struct rtl_priv *rtlpriv = rtl_priv(hw); 223 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 224 225 if (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT)) 226 return; 227 228 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE || 229 rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) { 230 u16 mcs_map; 231 232 vht_cap->vht_supported = true; 233 vht_cap->cap = 234 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 235 IEEE80211_VHT_CAP_SHORT_GI_80 | 236 IEEE80211_VHT_CAP_TXSTBC | 237 IEEE80211_VHT_CAP_RXSTBC_1 | 238 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 239 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 240 IEEE80211_VHT_CAP_HTC_VHT | 241 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 242 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | 243 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | 244 0; 245 246 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 247 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 | 248 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 249 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 250 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 251 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 252 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 253 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 254 255 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 256 vht_cap->vht_mcs.rx_highest = 257 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 258 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 259 vht_cap->vht_mcs.tx_highest = 260 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 261 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) { 262 u16 mcs_map; 263 264 vht_cap->vht_supported = true; 265 vht_cap->cap = 266 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 267 IEEE80211_VHT_CAP_SHORT_GI_80 | 268 IEEE80211_VHT_CAP_TXSTBC | 269 IEEE80211_VHT_CAP_RXSTBC_1 | 270 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 271 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 272 IEEE80211_VHT_CAP_HTC_VHT | 273 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 274 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | 275 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | 276 0; 277 278 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 279 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 | 280 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 281 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 282 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 283 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 284 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 285 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 286 287 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 288 vht_cap->vht_mcs.rx_highest = 289 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9); 290 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 291 vht_cap->vht_mcs.tx_highest = 292 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9); 293 } 294 } 295 296 static void _rtl_init_mac80211(struct ieee80211_hw *hw) 297 { 298 struct rtl_priv *rtlpriv = rtl_priv(hw); 299 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 300 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 301 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 302 struct ieee80211_supported_band *sband; 303 304 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && 305 rtlhal->bandset == BAND_ON_BOTH) { 306 /* 1: 2.4 G bands */ 307 /* <1> use mac->bands as mem for hw->wiphy->bands */ 308 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]); 309 310 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ] 311 * to default value(1T1R) */ 312 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz, 313 sizeof(struct ieee80211_supported_band)); 314 315 /* <3> init ht cap base on ant_num */ 316 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 317 318 /* <4> set mac->sband to wiphy->sband */ 319 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; 320 321 /* 2: 5 G bands */ 322 /* <1> use mac->bands as mem for hw->wiphy->bands */ 323 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]); 324 325 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ] 326 * to default value(1T1R) */ 327 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz, 328 sizeof(struct ieee80211_supported_band)); 329 330 /* <3> init ht cap base on ant_num */ 331 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 332 333 _rtl_init_hw_vht_capab(hw, &sband->vht_cap); 334 /* <4> set mac->sband to wiphy->sband */ 335 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; 336 } else { 337 if (rtlhal->current_bandtype == BAND_ON_2_4G) { 338 /* <1> use mac->bands as mem for hw->wiphy->bands */ 339 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]); 340 341 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ] 342 * to default value(1T1R) */ 343 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), 344 &rtl_band_2ghz, 345 sizeof(struct ieee80211_supported_band)); 346 347 /* <3> init ht cap base on ant_num */ 348 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 349 350 /* <4> set mac->sband to wiphy->sband */ 351 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; 352 } else if (rtlhal->current_bandtype == BAND_ON_5G) { 353 /* <1> use mac->bands as mem for hw->wiphy->bands */ 354 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]); 355 356 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ] 357 * to default value(1T1R) */ 358 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), 359 &rtl_band_5ghz, 360 sizeof(struct ieee80211_supported_band)); 361 362 /* <3> init ht cap base on ant_num */ 363 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 364 365 _rtl_init_hw_vht_capab(hw, &sband->vht_cap); 366 /* <4> set mac->sband to wiphy->sband */ 367 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; 368 } else { 369 pr_err("Err BAND %d\n", 370 rtlhal->current_bandtype); 371 } 372 } 373 /* <5> set hw caps */ 374 ieee80211_hw_set(hw, SIGNAL_DBM); 375 ieee80211_hw_set(hw, RX_INCLUDES_FCS); 376 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 377 ieee80211_hw_set(hw, MFP_CAPABLE); 378 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 379 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 380 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 381 382 /* swlps or hwlps has been set in diff chip in init_sw_vars */ 383 if (rtlpriv->psc.swctrl_lps) { 384 ieee80211_hw_set(hw, SUPPORTS_PS); 385 ieee80211_hw_set(hw, PS_NULLFUNC_STACK); 386 } 387 if (rtlpriv->psc.fwctrl_lps) { 388 ieee80211_hw_set(hw, SUPPORTS_PS); 389 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 390 } 391 hw->wiphy->interface_modes = 392 BIT(NL80211_IFTYPE_AP) | 393 BIT(NL80211_IFTYPE_STATION) | 394 BIT(NL80211_IFTYPE_ADHOC) | 395 BIT(NL80211_IFTYPE_MESH_POINT) | 396 BIT(NL80211_IFTYPE_P2P_CLIENT) | 397 BIT(NL80211_IFTYPE_P2P_GO); 398 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 399 400 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 401 402 hw->wiphy->rts_threshold = 2347; 403 404 hw->queues = AC_MAX; 405 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; 406 407 /* TODO: Correct this value for our hw */ 408 hw->max_listen_interval = MAX_LISTEN_INTERVAL; 409 hw->max_rate_tries = MAX_RATE_TRIES; 410 /* hw->max_rates = 1; */ 411 hw->sta_data_size = sizeof(struct rtl_sta_info); 412 413 /* wowlan is not supported by kernel if CONFIG_PM is not defined */ 414 #ifdef CONFIG_PM 415 if (rtlpriv->psc.wo_wlan_mode) { 416 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET) 417 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT; 418 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) { 419 rtlpriv->wowlan.n_patterns = 420 MAX_SUPPORT_WOL_PATTERN_NUM; 421 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE; 422 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE; 423 } 424 hw->wiphy->wowlan = &rtlpriv->wowlan; 425 } 426 #endif 427 428 /* <6> mac address */ 429 if (is_valid_ether_addr(rtlefuse->dev_addr)) { 430 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); 431 } else { 432 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; 433 434 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); 435 SET_IEEE80211_PERM_ADDR(hw, rtlmac1); 436 } 437 } 438 439 static void rtl_watchdog_wq_callback(struct work_struct *work); 440 static void rtl_fwevt_wq_callback(struct work_struct *work); 441 static void rtl_c2hcmd_wq_callback(struct work_struct *work); 442 443 static int _rtl_init_deferred_work(struct ieee80211_hw *hw) 444 { 445 struct rtl_priv *rtlpriv = rtl_priv(hw); 446 struct workqueue_struct *wq; 447 448 wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); 449 if (!wq) 450 return -ENOMEM; 451 452 /* <1> timer */ 453 timer_setup(&rtlpriv->works.watchdog_timer, 454 rtl_watch_dog_timer_callback, 0); 455 456 /* <2> work queue */ 457 rtlpriv->works.hw = hw; 458 rtlpriv->works.rtl_wq = wq; 459 460 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, 461 rtl_watchdog_wq_callback); 462 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, 463 rtl_ips_nic_off_wq_callback); 464 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, rtl_swlps_wq_callback); 465 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, 466 rtl_swlps_rfon_wq_callback); 467 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback); 468 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback); 469 return 0; 470 } 471 472 void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq) 473 { 474 struct rtl_priv *rtlpriv = rtl_priv(hw); 475 476 del_timer_sync(&rtlpriv->works.watchdog_timer); 477 478 cancel_delayed_work_sync(&rtlpriv->works.watchdog_wq); 479 if (ips_wq) 480 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); 481 else 482 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq); 483 cancel_delayed_work_sync(&rtlpriv->works.ps_work); 484 cancel_delayed_work_sync(&rtlpriv->works.ps_rfon_wq); 485 cancel_delayed_work_sync(&rtlpriv->works.fwevt_wq); 486 cancel_delayed_work_sync(&rtlpriv->works.c2hcmd_wq); 487 } 488 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work); 489 490 void rtl_init_rfkill(struct ieee80211_hw *hw) 491 { 492 struct rtl_priv *rtlpriv = rtl_priv(hw); 493 494 bool radio_state; 495 bool blocked; 496 u8 valid = 0; 497 498 /*set init state to on */ 499 rtlpriv->rfkill.rfkill_state = true; 500 wiphy_rfkill_set_hw_state(hw->wiphy, 0); 501 502 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); 503 504 if (valid) { 505 pr_info("rtlwifi: wireless switch is %s\n", 506 rtlpriv->rfkill.rfkill_state ? "on" : "off"); 507 508 rtlpriv->rfkill.rfkill_state = radio_state; 509 510 blocked = rtlpriv->rfkill.rfkill_state != 1; 511 wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 512 } 513 514 wiphy_rfkill_start_polling(hw->wiphy); 515 } 516 EXPORT_SYMBOL(rtl_init_rfkill); 517 518 void rtl_deinit_rfkill(struct ieee80211_hw *hw) 519 { 520 wiphy_rfkill_stop_polling(hw->wiphy); 521 } 522 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill); 523 524 int rtl_init_core(struct ieee80211_hw *hw) 525 { 526 struct rtl_priv *rtlpriv = rtl_priv(hw); 527 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 528 529 /* <1> init mac80211 */ 530 _rtl_init_mac80211(hw); 531 rtlmac->hw = hw; 532 533 /* <2> rate control register */ 534 hw->rate_control_algorithm = "rtl_rc"; 535 536 /* 537 * <3> init CRDA must come after init 538 * mac80211 hw in _rtl_init_mac80211. 539 */ 540 if (rtl_regd_init(hw, rtl_reg_notifier)) { 541 pr_err("REGD init failed\n"); 542 return 1; 543 } 544 545 /* <4> locks */ 546 mutex_init(&rtlpriv->locks.conf_mutex); 547 mutex_init(&rtlpriv->locks.ips_mutex); 548 mutex_init(&rtlpriv->locks.lps_mutex); 549 spin_lock_init(&rtlpriv->locks.irq_th_lock); 550 spin_lock_init(&rtlpriv->locks.h2c_lock); 551 spin_lock_init(&rtlpriv->locks.rf_ps_lock); 552 spin_lock_init(&rtlpriv->locks.rf_lock); 553 spin_lock_init(&rtlpriv->locks.waitq_lock); 554 spin_lock_init(&rtlpriv->locks.entry_list_lock); 555 spin_lock_init(&rtlpriv->locks.scan_list_lock); 556 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); 557 spin_lock_init(&rtlpriv->locks.fw_ps_lock); 558 spin_lock_init(&rtlpriv->locks.iqk_lock); 559 /* <5> init list */ 560 INIT_LIST_HEAD(&rtlpriv->entry_list); 561 INIT_LIST_HEAD(&rtlpriv->scan_list.list); 562 skb_queue_head_init(&rtlpriv->tx_report.queue); 563 skb_queue_head_init(&rtlpriv->c2hcmd_queue); 564 565 rtlmac->link_state = MAC80211_NOLINK; 566 567 /* <6> init deferred work */ 568 return _rtl_init_deferred_work(hw); 569 } 570 EXPORT_SYMBOL_GPL(rtl_init_core); 571 572 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw); 573 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw, 574 bool timeout); 575 576 void rtl_deinit_core(struct ieee80211_hw *hw) 577 { 578 rtl_c2hcmd_launcher(hw, 0); 579 rtl_free_entries_from_scan_list(hw); 580 rtl_free_entries_from_ack_queue(hw, false); 581 } 582 EXPORT_SYMBOL_GPL(rtl_deinit_core); 583 584 void rtl_init_rx_config(struct ieee80211_hw *hw) 585 { 586 struct rtl_priv *rtlpriv = rtl_priv(hw); 587 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 588 589 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf)); 590 } 591 EXPORT_SYMBOL_GPL(rtl_init_rx_config); 592 593 /********************************************************* 594 * 595 * tx information functions 596 * 597 *********************************************************/ 598 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw, 599 struct rtl_tcb_desc *tcb_desc, 600 struct ieee80211_tx_info *info) 601 { 602 struct rtl_priv *rtlpriv = rtl_priv(hw); 603 u8 rate_flag = info->control.rates[0].flags; 604 605 tcb_desc->use_shortpreamble = false; 606 607 /* 1M can only use Long Preamble. 11B spec */ 608 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M]) 609 return; 610 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) 611 tcb_desc->use_shortpreamble = true; 612 613 return; 614 } 615 616 static void _rtl_query_shortgi(struct ieee80211_hw *hw, 617 struct ieee80211_sta *sta, 618 struct rtl_tcb_desc *tcb_desc, 619 struct ieee80211_tx_info *info) 620 { 621 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 622 u8 rate_flag = info->control.rates[0].flags; 623 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0; 624 u8 sgi_80 = 0, bw_80 = 0; 625 626 tcb_desc->use_shortgi = false; 627 628 if (sta == NULL) 629 return; 630 631 sgi_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40; 632 sgi_20 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20; 633 sgi_80 = sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80; 634 635 if (!sta->deflink.ht_cap.ht_supported && 636 !sta->deflink.vht_cap.vht_supported) 637 return; 638 639 if (!sgi_40 && !sgi_20) 640 return; 641 642 if (mac->opmode == NL80211_IFTYPE_STATION) { 643 bw_40 = mac->bw_40; 644 bw_80 = mac->bw_80; 645 } else if (mac->opmode == NL80211_IFTYPE_AP || 646 mac->opmode == NL80211_IFTYPE_ADHOC || 647 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 648 bw_40 = sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; 649 bw_80 = sta->deflink.vht_cap.vht_supported; 650 } 651 652 if (bw_80) { 653 if (sgi_80) 654 tcb_desc->use_shortgi = true; 655 else 656 tcb_desc->use_shortgi = false; 657 } else { 658 if (bw_40 && sgi_40) 659 tcb_desc->use_shortgi = true; 660 else if (!bw_40 && sgi_20) 661 tcb_desc->use_shortgi = true; 662 } 663 664 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI)) 665 tcb_desc->use_shortgi = false; 666 } 667 668 static void _rtl_query_protection_mode(struct ieee80211_hw *hw, 669 struct rtl_tcb_desc *tcb_desc, 670 struct ieee80211_tx_info *info) 671 { 672 struct rtl_priv *rtlpriv = rtl_priv(hw); 673 u8 rate_flag = info->control.rates[0].flags; 674 675 /* Common Settings */ 676 tcb_desc->rts_stbc = false; 677 tcb_desc->cts_enable = false; 678 tcb_desc->rts_sc = 0; 679 tcb_desc->rts_bw = false; 680 tcb_desc->rts_use_shortpreamble = false; 681 tcb_desc->rts_use_shortgi = false; 682 683 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) { 684 /* Use CTS-to-SELF in protection mode. */ 685 tcb_desc->rts_enable = true; 686 tcb_desc->cts_enable = true; 687 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 688 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { 689 /* Use RTS-CTS in protection mode. */ 690 tcb_desc->rts_enable = true; 691 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 692 } 693 } 694 695 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index, 696 enum wireless_mode wirelessmode) 697 { 698 struct rtl_priv *rtlpriv = rtl_priv(hw); 699 struct rtl_phy *rtlphy = &rtlpriv->phy; 700 u8 ret = 0; 701 702 switch (rate_index) { 703 case RATR_INX_WIRELESS_NGB: 704 if (rtlphy->rf_type == RF_1T1R) 705 ret = RATEID_IDX_BGN_40M_1SS; 706 else 707 ret = RATEID_IDX_BGN_40M_2SS; 708 ; break; 709 case RATR_INX_WIRELESS_N: 710 case RATR_INX_WIRELESS_NG: 711 if (rtlphy->rf_type == RF_1T1R) 712 ret = RATEID_IDX_GN_N1SS; 713 else 714 ret = RATEID_IDX_GN_N2SS; 715 ; break; 716 case RATR_INX_WIRELESS_NB: 717 if (rtlphy->rf_type == RF_1T1R) 718 ret = RATEID_IDX_BGN_20M_1SS_BN; 719 else 720 ret = RATEID_IDX_BGN_20M_2SS_BN; 721 ; break; 722 case RATR_INX_WIRELESS_GB: 723 ret = RATEID_IDX_BG; 724 break; 725 case RATR_INX_WIRELESS_G: 726 ret = RATEID_IDX_G; 727 break; 728 case RATR_INX_WIRELESS_B: 729 ret = RATEID_IDX_B; 730 break; 731 case RATR_INX_WIRELESS_MC: 732 if (wirelessmode == WIRELESS_MODE_B || 733 wirelessmode == WIRELESS_MODE_G || 734 wirelessmode == WIRELESS_MODE_N_24G || 735 wirelessmode == WIRELESS_MODE_AC_24G) 736 ret = RATEID_IDX_BG; 737 else 738 ret = RATEID_IDX_G; 739 break; 740 case RATR_INX_WIRELESS_AC_5N: 741 if (rtlphy->rf_type == RF_1T1R) 742 ret = RATEID_IDX_VHT_1SS; 743 else 744 ret = RATEID_IDX_VHT_2SS; 745 break; 746 case RATR_INX_WIRELESS_AC_24N: 747 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) { 748 if (rtlphy->rf_type == RF_1T1R) 749 ret = RATEID_IDX_VHT_1SS; 750 else 751 ret = RATEID_IDX_VHT_2SS; 752 } else { 753 if (rtlphy->rf_type == RF_1T1R) 754 ret = RATEID_IDX_MIX1; 755 else 756 ret = RATEID_IDX_MIX2; 757 } 758 break; 759 default: 760 ret = RATEID_IDX_BGN_40M_2SS; 761 break; 762 } 763 return ret; 764 } 765 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id); 766 767 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, 768 struct ieee80211_sta *sta, 769 struct rtl_tcb_desc *tcb_desc) 770 { 771 #define SET_RATE_ID(rate_id) \ 772 ({typeof(rate_id) _id = rate_id; \ 773 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \ 774 rtl_mrate_idx_to_arfr_id(hw, _id, \ 775 (sta_entry ? sta_entry->wireless_mode : \ 776 WIRELESS_MODE_G)) : \ 777 _id); }) 778 779 struct rtl_priv *rtlpriv = rtl_priv(hw); 780 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 781 struct rtl_sta_info *sta_entry = NULL; 782 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC); 783 784 if (sta) { 785 sta_entry = (struct rtl_sta_info *) sta->drv_priv; 786 ratr_index = sta_entry->ratr_index; 787 } 788 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { 789 if (mac->opmode == NL80211_IFTYPE_STATION) { 790 tcb_desc->ratr_index = 0; 791 } else if (mac->opmode == NL80211_IFTYPE_ADHOC || 792 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 793 if (tcb_desc->multicast || tcb_desc->broadcast) { 794 tcb_desc->hw_rate = 795 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; 796 tcb_desc->use_driver_rate = 1; 797 tcb_desc->ratr_index = 798 SET_RATE_ID(RATR_INX_WIRELESS_MC); 799 } else { 800 tcb_desc->ratr_index = ratr_index; 801 } 802 } else if (mac->opmode == NL80211_IFTYPE_AP) { 803 tcb_desc->ratr_index = ratr_index; 804 } 805 } 806 807 if (rtlpriv->dm.useramask) { 808 tcb_desc->ratr_index = ratr_index; 809 /* TODO we will differentiate adhoc and station future */ 810 if (mac->opmode == NL80211_IFTYPE_STATION || 811 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 812 tcb_desc->mac_id = 0; 813 814 if (sta && 815 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID)) 816 ; /* use sta_entry->ratr_index */ 817 else if (mac->mode == WIRELESS_MODE_AC_5G) 818 tcb_desc->ratr_index = 819 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N); 820 else if (mac->mode == WIRELESS_MODE_AC_24G) 821 tcb_desc->ratr_index = 822 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N); 823 else if (mac->mode == WIRELESS_MODE_N_24G) 824 tcb_desc->ratr_index = 825 SET_RATE_ID(RATR_INX_WIRELESS_NGB); 826 else if (mac->mode == WIRELESS_MODE_N_5G) 827 tcb_desc->ratr_index = 828 SET_RATE_ID(RATR_INX_WIRELESS_NG); 829 else if (mac->mode & WIRELESS_MODE_G) 830 tcb_desc->ratr_index = 831 SET_RATE_ID(RATR_INX_WIRELESS_GB); 832 else if (mac->mode & WIRELESS_MODE_B) 833 tcb_desc->ratr_index = 834 SET_RATE_ID(RATR_INX_WIRELESS_B); 835 else if (mac->mode & WIRELESS_MODE_A) 836 tcb_desc->ratr_index = 837 SET_RATE_ID(RATR_INX_WIRELESS_G); 838 839 } else if (mac->opmode == NL80211_IFTYPE_AP || 840 mac->opmode == NL80211_IFTYPE_ADHOC) { 841 if (NULL != sta) { 842 if (sta->aid > 0) 843 tcb_desc->mac_id = sta->aid + 1; 844 else 845 tcb_desc->mac_id = 1; 846 } else { 847 tcb_desc->mac_id = 0; 848 } 849 } 850 } 851 #undef SET_RATE_ID 852 } 853 854 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, 855 struct ieee80211_sta *sta, 856 struct rtl_tcb_desc *tcb_desc) 857 { 858 struct rtl_priv *rtlpriv = rtl_priv(hw); 859 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 860 861 tcb_desc->packet_bw = false; 862 if (!sta) 863 return; 864 if (mac->opmode == NL80211_IFTYPE_AP || 865 mac->opmode == NL80211_IFTYPE_ADHOC || 866 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 867 if (!(sta->deflink.ht_cap.ht_supported) || 868 !(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) 869 return; 870 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 871 if (!mac->bw_40 || !(sta->deflink.ht_cap.ht_supported)) 872 return; 873 } 874 if (tcb_desc->multicast || tcb_desc->broadcast) 875 return; 876 877 /*use legency rate, shall use 20MHz */ 878 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) 879 return; 880 881 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40; 882 883 if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) { 884 if (mac->opmode == NL80211_IFTYPE_AP || 885 mac->opmode == NL80211_IFTYPE_ADHOC || 886 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 887 if (!(sta->deflink.vht_cap.vht_supported)) 888 return; 889 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 890 if (!mac->bw_80 || 891 !(sta->deflink.vht_cap.vht_supported)) 892 return; 893 } 894 if (tcb_desc->hw_rate <= 895 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]) 896 return; 897 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80; 898 } 899 } 900 901 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw, 902 struct ieee80211_sta *sta) 903 { 904 struct rtl_priv *rtlpriv = rtl_priv(hw); 905 struct rtl_phy *rtlphy = &(rtlpriv->phy); 906 u8 hw_rate; 907 u16 tx_mcs_map = le16_to_cpu(sta->deflink.vht_cap.vht_mcs.tx_mcs_map); 908 909 if ((get_rf_type(rtlphy) == RF_2T2R) && 910 (tx_mcs_map & 0x000c) != 0x000c) { 911 if ((tx_mcs_map & 0x000c) >> 2 == 912 IEEE80211_VHT_MCS_SUPPORT_0_7) 913 hw_rate = 914 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7]; 915 else if ((tx_mcs_map & 0x000c) >> 2 == 916 IEEE80211_VHT_MCS_SUPPORT_0_8) 917 hw_rate = 918 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8]; 919 else 920 hw_rate = 921 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 922 } else { 923 if ((tx_mcs_map & 0x0003) == 924 IEEE80211_VHT_MCS_SUPPORT_0_7) 925 hw_rate = 926 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7]; 927 else if ((tx_mcs_map & 0x0003) == 928 IEEE80211_VHT_MCS_SUPPORT_0_8) 929 hw_rate = 930 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8]; 931 else 932 hw_rate = 933 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 934 } 935 936 return hw_rate; 937 } 938 939 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw, 940 struct ieee80211_sta *sta) 941 { 942 struct rtl_priv *rtlpriv = rtl_priv(hw); 943 struct rtl_phy *rtlphy = &rtlpriv->phy; 944 u8 hw_rate; 945 946 if (get_rf_type(rtlphy) == RF_2T2R && 947 sta->deflink.ht_cap.mcs.rx_mask[1] != 0) 948 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; 949 else 950 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; 951 952 return hw_rate; 953 } 954 955 /* mac80211's rate_idx is like this: 956 * 957 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ 958 * 959 * B/G rate: 960 * (rx_status->flag & RX_FLAG_HT) = 0, 961 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11, 962 * 963 * N rate: 964 * (rx_status->flag & RX_FLAG_HT) = 1, 965 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 966 * 967 * 5G band:rx_status->band == NL80211_BAND_5GHZ 968 * A rate: 969 * (rx_status->flag & RX_FLAG_HT) = 0, 970 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7, 971 * 972 * N rate: 973 * (rx_status->flag & RX_FLAG_HT) = 1, 974 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 975 * 976 * VHT rates: 977 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9 978 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9 979 */ 980 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht, 981 u8 desc_rate) 982 { 983 int rate_idx; 984 985 if (isvht) { 986 switch (desc_rate) { 987 case DESC_RATEVHT1SS_MCS0: 988 rate_idx = 0; 989 break; 990 case DESC_RATEVHT1SS_MCS1: 991 rate_idx = 1; 992 break; 993 case DESC_RATEVHT1SS_MCS2: 994 rate_idx = 2; 995 break; 996 case DESC_RATEVHT1SS_MCS3: 997 rate_idx = 3; 998 break; 999 case DESC_RATEVHT1SS_MCS4: 1000 rate_idx = 4; 1001 break; 1002 case DESC_RATEVHT1SS_MCS5: 1003 rate_idx = 5; 1004 break; 1005 case DESC_RATEVHT1SS_MCS6: 1006 rate_idx = 6; 1007 break; 1008 case DESC_RATEVHT1SS_MCS7: 1009 rate_idx = 7; 1010 break; 1011 case DESC_RATEVHT1SS_MCS8: 1012 rate_idx = 8; 1013 break; 1014 case DESC_RATEVHT1SS_MCS9: 1015 rate_idx = 9; 1016 break; 1017 case DESC_RATEVHT2SS_MCS0: 1018 rate_idx = 0; 1019 break; 1020 case DESC_RATEVHT2SS_MCS1: 1021 rate_idx = 1; 1022 break; 1023 case DESC_RATEVHT2SS_MCS2: 1024 rate_idx = 2; 1025 break; 1026 case DESC_RATEVHT2SS_MCS3: 1027 rate_idx = 3; 1028 break; 1029 case DESC_RATEVHT2SS_MCS4: 1030 rate_idx = 4; 1031 break; 1032 case DESC_RATEVHT2SS_MCS5: 1033 rate_idx = 5; 1034 break; 1035 case DESC_RATEVHT2SS_MCS6: 1036 rate_idx = 6; 1037 break; 1038 case DESC_RATEVHT2SS_MCS7: 1039 rate_idx = 7; 1040 break; 1041 case DESC_RATEVHT2SS_MCS8: 1042 rate_idx = 8; 1043 break; 1044 case DESC_RATEVHT2SS_MCS9: 1045 rate_idx = 9; 1046 break; 1047 default: 1048 rate_idx = 0; 1049 break; 1050 } 1051 return rate_idx; 1052 } 1053 if (false == isht) { 1054 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) { 1055 switch (desc_rate) { 1056 case DESC_RATE1M: 1057 rate_idx = 0; 1058 break; 1059 case DESC_RATE2M: 1060 rate_idx = 1; 1061 break; 1062 case DESC_RATE5_5M: 1063 rate_idx = 2; 1064 break; 1065 case DESC_RATE11M: 1066 rate_idx = 3; 1067 break; 1068 case DESC_RATE6M: 1069 rate_idx = 4; 1070 break; 1071 case DESC_RATE9M: 1072 rate_idx = 5; 1073 break; 1074 case DESC_RATE12M: 1075 rate_idx = 6; 1076 break; 1077 case DESC_RATE18M: 1078 rate_idx = 7; 1079 break; 1080 case DESC_RATE24M: 1081 rate_idx = 8; 1082 break; 1083 case DESC_RATE36M: 1084 rate_idx = 9; 1085 break; 1086 case DESC_RATE48M: 1087 rate_idx = 10; 1088 break; 1089 case DESC_RATE54M: 1090 rate_idx = 11; 1091 break; 1092 default: 1093 rate_idx = 0; 1094 break; 1095 } 1096 } else { 1097 switch (desc_rate) { 1098 case DESC_RATE6M: 1099 rate_idx = 0; 1100 break; 1101 case DESC_RATE9M: 1102 rate_idx = 1; 1103 break; 1104 case DESC_RATE12M: 1105 rate_idx = 2; 1106 break; 1107 case DESC_RATE18M: 1108 rate_idx = 3; 1109 break; 1110 case DESC_RATE24M: 1111 rate_idx = 4; 1112 break; 1113 case DESC_RATE36M: 1114 rate_idx = 5; 1115 break; 1116 case DESC_RATE48M: 1117 rate_idx = 6; 1118 break; 1119 case DESC_RATE54M: 1120 rate_idx = 7; 1121 break; 1122 default: 1123 rate_idx = 0; 1124 break; 1125 } 1126 } 1127 } else { 1128 switch (desc_rate) { 1129 case DESC_RATEMCS0: 1130 rate_idx = 0; 1131 break; 1132 case DESC_RATEMCS1: 1133 rate_idx = 1; 1134 break; 1135 case DESC_RATEMCS2: 1136 rate_idx = 2; 1137 break; 1138 case DESC_RATEMCS3: 1139 rate_idx = 3; 1140 break; 1141 case DESC_RATEMCS4: 1142 rate_idx = 4; 1143 break; 1144 case DESC_RATEMCS5: 1145 rate_idx = 5; 1146 break; 1147 case DESC_RATEMCS6: 1148 rate_idx = 6; 1149 break; 1150 case DESC_RATEMCS7: 1151 rate_idx = 7; 1152 break; 1153 case DESC_RATEMCS8: 1154 rate_idx = 8; 1155 break; 1156 case DESC_RATEMCS9: 1157 rate_idx = 9; 1158 break; 1159 case DESC_RATEMCS10: 1160 rate_idx = 10; 1161 break; 1162 case DESC_RATEMCS11: 1163 rate_idx = 11; 1164 break; 1165 case DESC_RATEMCS12: 1166 rate_idx = 12; 1167 break; 1168 case DESC_RATEMCS13: 1169 rate_idx = 13; 1170 break; 1171 case DESC_RATEMCS14: 1172 rate_idx = 14; 1173 break; 1174 case DESC_RATEMCS15: 1175 rate_idx = 15; 1176 break; 1177 default: 1178 rate_idx = 0; 1179 break; 1180 } 1181 } 1182 return rate_idx; 1183 } 1184 EXPORT_SYMBOL(rtlwifi_rate_mapping); 1185 1186 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw, 1187 struct ieee80211_tx_info *info) 1188 { 1189 struct rtl_priv *rtlpriv = rtl_priv(hw); 1190 struct ieee80211_tx_rate *r = &info->status.rates[0]; 1191 struct ieee80211_rate *txrate; 1192 u8 hw_value = 0x0; 1193 1194 if (r->flags & IEEE80211_TX_RC_MCS) { 1195 /* HT MCS0-15 */ 1196 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 + 1197 r->idx; 1198 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) { 1199 /* VHT MCS0-9, NSS */ 1200 if (ieee80211_rate_get_vht_nss(r) == 2) 1201 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 1202 else 1203 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 1204 1205 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r); 1206 } else { 1207 /* legacy */ 1208 txrate = ieee80211_get_tx_rate(hw, info); 1209 1210 if (txrate) 1211 hw_value = txrate->hw_value; 1212 } 1213 1214 /* check 5G band */ 1215 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G && 1216 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M]) 1217 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M]; 1218 1219 return hw_value; 1220 } 1221 1222 void rtl_get_tcb_desc(struct ieee80211_hw *hw, 1223 struct ieee80211_tx_info *info, 1224 struct ieee80211_sta *sta, 1225 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) 1226 { 1227 #define SET_RATE_ID(rate_id) \ 1228 ({typeof(rate_id) _id = rate_id; \ 1229 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \ 1230 rtl_mrate_idx_to_arfr_id(hw, _id, \ 1231 (sta_entry ? sta_entry->wireless_mode : \ 1232 WIRELESS_MODE_G)) : \ 1233 _id); }) 1234 1235 struct rtl_priv *rtlpriv = rtl_priv(hw); 1236 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 1237 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1238 struct rtl_sta_info *sta_entry = 1239 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL); 1240 1241 __le16 fc = rtl_get_fc(skb); 1242 1243 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info); 1244 1245 if (rtl_is_tx_report_skb(hw, skb)) 1246 tcb_desc->use_spe_rpt = 1; 1247 1248 if (ieee80211_is_data(fc)) { 1249 /* 1250 *we set data rate INX 0 1251 *in rtl_rc.c if skb is special data or 1252 *mgt which need low data rate. 1253 */ 1254 1255 /* 1256 *So tcb_desc->hw_rate is just used for 1257 *special data and mgt frames 1258 */ 1259 if (info->control.rates[0].idx == 0 || 1260 ieee80211_is_nullfunc(fc)) { 1261 tcb_desc->use_driver_rate = true; 1262 tcb_desc->ratr_index = 1263 SET_RATE_ID(RATR_INX_WIRELESS_MC); 1264 1265 tcb_desc->disable_ratefallback = 1; 1266 } else { 1267 /* 1268 *because hw will nerver use hw_rate 1269 *when tcb_desc->use_driver_rate = false 1270 *so we never set highest N rate here, 1271 *and N rate will all be controlled by FW 1272 *when tcb_desc->use_driver_rate = false 1273 */ 1274 if (sta && sta->deflink.vht_cap.vht_supported) { 1275 tcb_desc->hw_rate = 1276 _rtl_get_vht_highest_n_rate(hw, sta); 1277 } else { 1278 if (sta && sta->deflink.ht_cap.ht_supported) { 1279 tcb_desc->hw_rate = 1280 _rtl_get_highest_n_rate(hw, sta); 1281 } else { 1282 if (rtlmac->mode == WIRELESS_MODE_B) { 1283 tcb_desc->hw_rate = 1284 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; 1285 } else { 1286 tcb_desc->hw_rate = 1287 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; 1288 } 1289 } 1290 } 1291 } 1292 1293 if (is_multicast_ether_addr(hdr->addr1)) 1294 tcb_desc->multicast = 1; 1295 else if (is_broadcast_ether_addr(hdr->addr1)) 1296 tcb_desc->broadcast = 1; 1297 1298 _rtl_txrate_selectmode(hw, sta, tcb_desc); 1299 _rtl_query_bandwidth_mode(hw, sta, tcb_desc); 1300 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); 1301 _rtl_query_shortgi(hw, sta, tcb_desc, info); 1302 _rtl_query_protection_mode(hw, tcb_desc, info); 1303 } else { 1304 tcb_desc->use_driver_rate = true; 1305 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC); 1306 tcb_desc->disable_ratefallback = 1; 1307 tcb_desc->mac_id = 0; 1308 tcb_desc->packet_bw = false; 1309 } 1310 #undef SET_RATE_ID 1311 } 1312 EXPORT_SYMBOL(rtl_get_tcb_desc); 1313 1314 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb) 1315 { 1316 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1317 struct rtl_priv *rtlpriv = rtl_priv(hw); 1318 __le16 fc = rtl_get_fc(skb); 1319 1320 if (ieee80211_is_auth(fc)) { 1321 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); 1322 1323 mac->link_state = MAC80211_LINKING; 1324 /* Dul mac */ 1325 rtlpriv->phy.need_iqk = true; 1326 1327 } 1328 1329 return true; 1330 } 1331 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc); 1332 1333 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa, 1334 u8 *bssid, u16 tid); 1335 1336 static void process_agg_start(struct ieee80211_hw *hw, 1337 struct ieee80211_hdr *hdr, u16 tid) 1338 { 1339 struct rtl_priv *rtlpriv = rtl_priv(hw); 1340 struct ieee80211_rx_status rx_status = { 0 }; 1341 struct sk_buff *skb_delba = NULL; 1342 1343 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid); 1344 if (skb_delba) { 1345 rx_status.freq = hw->conf.chandef.chan->center_freq; 1346 rx_status.band = hw->conf.chandef.chan->band; 1347 rx_status.flag |= RX_FLAG_DECRYPTED; 1348 rx_status.flag |= RX_FLAG_MACTIME_START; 1349 rx_status.rate_idx = 0; 1350 rx_status.signal = 50 + 10; 1351 memcpy(IEEE80211_SKB_RXCB(skb_delba), 1352 &rx_status, sizeof(rx_status)); 1353 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, 1354 "fake del\n", 1355 skb_delba->data, 1356 skb_delba->len); 1357 ieee80211_rx_irqsafe(hw, skb_delba); 1358 } 1359 } 1360 1361 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 1362 { 1363 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1364 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1365 struct rtl_priv *rtlpriv = rtl_priv(hw); 1366 __le16 fc = rtl_get_fc(skb); 1367 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN)); 1368 u8 category; 1369 1370 if (!ieee80211_is_action(fc)) 1371 return true; 1372 1373 category = *act; 1374 act++; 1375 switch (category) { 1376 case ACT_CAT_BA: 1377 switch (*act) { 1378 case ACT_ADDBAREQ: 1379 if (mac->act_scanning) 1380 return false; 1381 1382 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1383 "%s ACT_ADDBAREQ From :%pM\n", 1384 is_tx ? "Tx" : "Rx", hdr->addr2); 1385 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n", 1386 skb->data, skb->len); 1387 if (!is_tx) { 1388 struct ieee80211_sta *sta = NULL; 1389 struct rtl_sta_info *sta_entry = NULL; 1390 struct rtl_tid_data *tid_data; 1391 struct ieee80211_mgmt *mgmt = (void *)skb->data; 1392 u16 capab = 0, tid = 0; 1393 1394 rcu_read_lock(); 1395 sta = rtl_find_sta(hw, hdr->addr3); 1396 if (sta == NULL) { 1397 rtl_dbg(rtlpriv, COMP_SEND | COMP_RECV, 1398 DBG_DMESG, "sta is NULL\n"); 1399 rcu_read_unlock(); 1400 return true; 1401 } 1402 1403 sta_entry = 1404 (struct rtl_sta_info *)sta->drv_priv; 1405 capab = 1406 le16_to_cpu(mgmt->u.action.u.addba_req.capab); 1407 tid = (capab & 1408 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; 1409 if (tid >= MAX_TID_COUNT) { 1410 rcu_read_unlock(); 1411 return true; 1412 } 1413 tid_data = &sta_entry->tids[tid]; 1414 if (tid_data->agg.rx_agg_state == 1415 RTL_RX_AGG_START) 1416 process_agg_start(hw, hdr, tid); 1417 rcu_read_unlock(); 1418 } 1419 break; 1420 case ACT_ADDBARSP: 1421 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1422 "%s ACT_ADDBARSP From :%pM\n", 1423 is_tx ? "Tx" : "Rx", hdr->addr2); 1424 break; 1425 case ACT_DELBA: 1426 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1427 "ACT_ADDBADEL From :%pM\n", hdr->addr2); 1428 break; 1429 } 1430 break; 1431 default: 1432 break; 1433 } 1434 1435 return true; 1436 } 1437 EXPORT_SYMBOL_GPL(rtl_action_proc); 1438 1439 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc, 1440 int type) 1441 { 1442 struct ieee80211_hw *hw = rtlpriv->hw; 1443 1444 rtlpriv->ra.is_special_data = true; 1445 if (rtlpriv->cfg->ops->get_btc_status()) 1446 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify( 1447 rtlpriv, type); 1448 rtl_lps_leave(hw, false); 1449 ppsc->last_delaylps_stamp_jiffies = jiffies; 1450 } 1451 1452 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw, 1453 struct sk_buff *skb, bool is_enc) 1454 { 1455 struct rtl_priv *rtlpriv = rtl_priv(hw); 1456 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); 1457 u8 encrypt_header_len = 0; 1458 u8 offset; 1459 1460 switch (rtlpriv->sec.pairwise_enc_algorithm) { 1461 case WEP40_ENCRYPTION: 1462 case WEP104_ENCRYPTION: 1463 encrypt_header_len = 4;/*WEP_IV_LEN*/ 1464 break; 1465 case TKIP_ENCRYPTION: 1466 encrypt_header_len = 8;/*TKIP_IV_LEN*/ 1467 break; 1468 case AESCCMP_ENCRYPTION: 1469 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/ 1470 break; 1471 default: 1472 break; 1473 } 1474 1475 offset = mac_hdr_len + SNAP_SIZE; 1476 if (is_enc) 1477 offset += encrypt_header_len; 1478 1479 return skb->data + offset; 1480 } 1481 1482 /*should call before software enc*/ 1483 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx, 1484 bool is_enc) 1485 { 1486 struct rtl_priv *rtlpriv = rtl_priv(hw); 1487 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1488 __le16 fc = rtl_get_fc(skb); 1489 u16 ether_type; 1490 const u8 *ether_type_ptr; 1491 const struct iphdr *ip; 1492 1493 if (!ieee80211_is_data(fc)) 1494 goto end; 1495 1496 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc); 1497 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1498 1499 if (ETH_P_IP == ether_type) { 1500 ip = (struct iphdr *)((u8 *)ether_type_ptr + 1501 PROTOC_TYPE_SIZE); 1502 if (IPPROTO_UDP == ip->protocol) { 1503 struct udphdr *udp = (struct udphdr *)((u8 *)ip + 1504 (ip->ihl << 2)); 1505 if (((((u8 *)udp)[1] == 68) && 1506 (((u8 *)udp)[3] == 67)) || 1507 ((((u8 *)udp)[1] == 67) && 1508 (((u8 *)udp)[3] == 68))) { 1509 /* 68 : UDP BOOTP client 1510 * 67 : UDP BOOTP server 1511 */ 1512 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), 1513 DBG_DMESG, "dhcp %s !!\n", 1514 (is_tx) ? "Tx" : "Rx"); 1515 1516 if (is_tx) 1517 setup_special_tx(rtlpriv, ppsc, 1518 PACKET_DHCP); 1519 1520 return true; 1521 } 1522 } 1523 } else if (ETH_P_ARP == ether_type) { 1524 if (is_tx) 1525 setup_special_tx(rtlpriv, ppsc, PACKET_ARP); 1526 1527 return true; 1528 } else if (ETH_P_PAE == ether_type) { 1529 /* EAPOL is seens as in-4way */ 1530 rtlpriv->btcoexist.btc_info.in_4way = true; 1531 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies; 1532 1533 rtl_dbg(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1534 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"); 1535 1536 if (is_tx) { 1537 rtlpriv->ra.is_special_data = true; 1538 rtl_lps_leave(hw, false); 1539 ppsc->last_delaylps_stamp_jiffies = jiffies; 1540 1541 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL); 1542 } 1543 1544 return true; 1545 } else if (ETH_P_IPV6 == ether_type) { 1546 /* TODO: Handle any IPv6 cases that need special handling. 1547 * For now, always return false 1548 */ 1549 goto end; 1550 } 1551 1552 end: 1553 rtlpriv->ra.is_special_data = false; 1554 return false; 1555 } 1556 EXPORT_SYMBOL_GPL(rtl_is_special_data); 1557 1558 void rtl_tx_ackqueue(struct ieee80211_hw *hw, struct sk_buff *skb) 1559 { 1560 struct rtl_priv *rtlpriv = rtl_priv(hw); 1561 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1562 1563 __skb_queue_tail(&tx_report->queue, skb); 1564 } 1565 EXPORT_SYMBOL_GPL(rtl_tx_ackqueue); 1566 1567 static void rtl_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, 1568 bool ack) 1569 { 1570 struct rtl_priv *rtlpriv = rtl_priv(hw); 1571 struct ieee80211_tx_info *info; 1572 1573 info = IEEE80211_SKB_CB(skb); 1574 ieee80211_tx_info_clear_status(info); 1575 if (ack) { 1576 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD, 1577 "tx report: ack\n"); 1578 info->flags |= IEEE80211_TX_STAT_ACK; 1579 } else { 1580 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_LOUD, 1581 "tx report: not ack\n"); 1582 info->flags &= ~IEEE80211_TX_STAT_ACK; 1583 } 1584 ieee80211_tx_status_irqsafe(hw, skb); 1585 } 1586 1587 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb) 1588 { 1589 u16 ether_type; 1590 const u8 *ether_type_ptr; 1591 __le16 fc = rtl_get_fc(skb); 1592 1593 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true); 1594 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1595 1596 if (ether_type == ETH_P_PAE || ieee80211_is_nullfunc(fc)) 1597 return true; 1598 1599 return false; 1600 } 1601 1602 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw, 1603 struct rtlwifi_tx_info *tx_info) 1604 { 1605 struct rtl_priv *rtlpriv = rtl_priv(hw); 1606 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1607 u16 sn; 1608 1609 /* SW_DEFINE[11:8] are reserved (driver fills zeros) 1610 * SW_DEFINE[7:2] are used by driver 1611 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros) 1612 */ 1613 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2; 1614 1615 tx_report->last_sent_sn = sn; 1616 tx_report->last_sent_time = jiffies; 1617 tx_info->sn = sn; 1618 tx_info->send_time = tx_report->last_sent_time; 1619 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1620 "Send TX-Report sn=0x%X\n", sn); 1621 1622 return sn; 1623 } 1624 1625 void rtl_set_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc, 1626 struct ieee80211_hw *hw, struct rtlwifi_tx_info *tx_info) 1627 { 1628 if (ptcb_desc->use_spe_rpt) { 1629 u16 sn = rtl_get_tx_report_sn(hw, tx_info); 1630 1631 SET_TX_DESC_SPE_RPT(pdesc, 1); 1632 SET_TX_DESC_SW_DEFINE(pdesc, sn); 1633 } 1634 } 1635 EXPORT_SYMBOL_GPL(rtl_set_tx_report); 1636 1637 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len) 1638 { 1639 struct rtl_priv *rtlpriv = rtl_priv(hw); 1640 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1641 struct rtlwifi_tx_info *tx_info; 1642 struct sk_buff_head *queue = &tx_report->queue; 1643 struct sk_buff *skb; 1644 u16 sn; 1645 u8 st, retry; 1646 1647 if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) { 1648 sn = GET_TX_REPORT_SN_V2(tmp_buf); 1649 st = GET_TX_REPORT_ST_V2(tmp_buf); 1650 retry = GET_TX_REPORT_RETRY_V2(tmp_buf); 1651 } else { 1652 sn = GET_TX_REPORT_SN_V1(tmp_buf); 1653 st = GET_TX_REPORT_ST_V1(tmp_buf); 1654 retry = GET_TX_REPORT_RETRY_V1(tmp_buf); 1655 } 1656 1657 tx_report->last_recv_sn = sn; 1658 1659 skb_queue_walk(queue, skb) { 1660 tx_info = rtl_tx_skb_cb_info(skb); 1661 if (tx_info->sn == sn) { 1662 skb_unlink(skb, queue); 1663 rtl_tx_status(hw, skb, st == 0); 1664 break; 1665 } 1666 } 1667 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1668 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n", 1669 st, sn, retry); 1670 } 1671 EXPORT_SYMBOL_GPL(rtl_tx_report_handler); 1672 1673 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw) 1674 { 1675 struct rtl_priv *rtlpriv = rtl_priv(hw); 1676 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1677 1678 if (tx_report->last_sent_sn == tx_report->last_recv_sn) 1679 return true; 1680 1681 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) { 1682 rtl_dbg(rtlpriv, COMP_TX_REPORT, DBG_WARNING, 1683 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n", 1684 tx_report->last_sent_sn, tx_report->last_recv_sn); 1685 return true; /* 3 sec. (timeout) seen as acked */ 1686 } 1687 1688 return false; 1689 } 1690 1691 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms) 1692 { 1693 struct rtl_priv *rtlpriv = rtl_priv(hw); 1694 int i; 1695 1696 for (i = 0; i < wait_ms; i++) { 1697 if (rtl_check_tx_report_acked(hw)) 1698 break; 1699 usleep_range(1000, 2000); 1700 rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, 1701 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms); 1702 } 1703 } 1704 1705 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw, 1706 struct ieee80211_vif *vif, 1707 enum wireless_mode wirelessmode, 1708 struct ieee80211_tx_queue_params *param) 1709 { 1710 u32 reg = 0; 1711 u8 sifstime = 10; 1712 u8 slottime = 20; 1713 1714 /* AIFS = AIFSN * slot time + SIFS */ 1715 switch (wirelessmode) { 1716 case WIRELESS_MODE_A: 1717 case WIRELESS_MODE_N_24G: 1718 case WIRELESS_MODE_N_5G: 1719 case WIRELESS_MODE_AC_5G: 1720 case WIRELESS_MODE_AC_24G: 1721 sifstime = 16; 1722 slottime = 9; 1723 break; 1724 case WIRELESS_MODE_G: 1725 slottime = (vif->bss_conf.use_short_slot ? 9 : 20); 1726 break; 1727 default: 1728 break; 1729 } 1730 1731 reg |= (param->txop & 0x7FF) << 16; 1732 reg |= (fls(param->cw_max) & 0xF) << 12; 1733 reg |= (fls(param->cw_min) & 0xF) << 8; 1734 reg |= (param->aifs & 0x0F) * slottime + sifstime; 1735 1736 return reg; 1737 } 1738 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param); 1739 1740 /********************************************************* 1741 * 1742 * functions called by core.c 1743 * 1744 *********************************************************/ 1745 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1746 struct ieee80211_sta *sta, u16 tid, u16 *ssn) 1747 { 1748 struct rtl_priv *rtlpriv = rtl_priv(hw); 1749 struct rtl_tid_data *tid_data; 1750 struct rtl_sta_info *sta_entry = NULL; 1751 1752 if (sta == NULL) 1753 return -EINVAL; 1754 1755 if (unlikely(tid >= MAX_TID_COUNT)) 1756 return -EINVAL; 1757 1758 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1759 tid_data = &sta_entry->tids[tid]; 1760 1761 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, 1762 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1763 *ssn); 1764 1765 tid_data->agg.agg_state = RTL_AGG_START; 1766 1767 return IEEE80211_AMPDU_TX_START_IMMEDIATE; 1768 } 1769 1770 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1771 struct ieee80211_sta *sta, u16 tid) 1772 { 1773 struct rtl_priv *rtlpriv = rtl_priv(hw); 1774 struct rtl_sta_info *sta_entry = NULL; 1775 1776 if (sta == NULL) 1777 return -EINVAL; 1778 1779 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, 1780 "on ra = %pM tid = %d\n", sta->addr, tid); 1781 1782 if (unlikely(tid >= MAX_TID_COUNT)) 1783 return -EINVAL; 1784 1785 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1786 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; 1787 1788 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1789 return 0; 1790 } 1791 1792 int rtl_rx_agg_start(struct ieee80211_hw *hw, 1793 struct ieee80211_sta *sta, u16 tid) 1794 { 1795 struct rtl_priv *rtlpriv = rtl_priv(hw); 1796 struct rtl_tid_data *tid_data; 1797 struct rtl_sta_info *sta_entry = NULL; 1798 u8 reject_agg; 1799 1800 if (sta == NULL) 1801 return -EINVAL; 1802 1803 if (unlikely(tid >= MAX_TID_COUNT)) 1804 return -EINVAL; 1805 1806 if (rtlpriv->cfg->ops->get_btc_status()) { 1807 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv, 1808 &reject_agg, 1809 NULL, NULL); 1810 if (reject_agg) 1811 return -EINVAL; 1812 } 1813 1814 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1815 tid_data = &sta_entry->tids[tid]; 1816 1817 rtl_dbg(rtlpriv, COMP_RECV, DBG_DMESG, 1818 "on ra = %pM tid = %d\n", sta->addr, tid); 1819 1820 tid_data->agg.rx_agg_state = RTL_RX_AGG_START; 1821 return 0; 1822 } 1823 1824 int rtl_rx_agg_stop(struct ieee80211_hw *hw, 1825 struct ieee80211_sta *sta, u16 tid) 1826 { 1827 struct rtl_priv *rtlpriv = rtl_priv(hw); 1828 struct rtl_sta_info *sta_entry = NULL; 1829 1830 if (sta == NULL) 1831 return -EINVAL; 1832 1833 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, 1834 "on ra = %pM tid = %d\n", sta->addr, tid); 1835 1836 if (unlikely(tid >= MAX_TID_COUNT)) 1837 return -EINVAL; 1838 1839 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1840 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP; 1841 1842 return 0; 1843 } 1844 1845 int rtl_tx_agg_oper(struct ieee80211_hw *hw, 1846 struct ieee80211_sta *sta, u16 tid) 1847 { 1848 struct rtl_priv *rtlpriv = rtl_priv(hw); 1849 struct rtl_sta_info *sta_entry = NULL; 1850 1851 if (sta == NULL) 1852 return -EINVAL; 1853 1854 rtl_dbg(rtlpriv, COMP_SEND, DBG_DMESG, 1855 "on ra = %pM tid = %d\n", sta->addr, tid); 1856 1857 if (unlikely(tid >= MAX_TID_COUNT)) 1858 return -EINVAL; 1859 1860 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1861 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; 1862 1863 return 0; 1864 } 1865 1866 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv) 1867 { 1868 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops; 1869 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0; 1870 1871 if (rtlpriv->cfg->ops->get_btc_status()) 1872 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg, 1873 &ctrl_agg_size, &agg_size); 1874 1875 rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_DMESG, 1876 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d", 1877 reject_agg, ctrl_agg_size, agg_size); 1878 1879 rtlpriv->hw->max_rx_aggregation_subframes = 1880 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF_HT); 1881 } 1882 EXPORT_SYMBOL(rtl_rx_ampdu_apply); 1883 1884 /********************************************************* 1885 * 1886 * wq & timer callback functions 1887 * 1888 *********************************************************/ 1889 /* this function is used for roaming */ 1890 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb) 1891 { 1892 struct rtl_priv *rtlpriv = rtl_priv(hw); 1893 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1894 1895 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION) 1896 return; 1897 1898 if (rtlpriv->mac80211.link_state < MAC80211_LINKED) 1899 return; 1900 1901 /* check if this really is a beacon */ 1902 if (!ieee80211_is_beacon(hdr->frame_control) && 1903 !ieee80211_is_probe_resp(hdr->frame_control)) 1904 return; 1905 1906 /* min. beacon length + FCS_LEN */ 1907 if (skb->len <= 40 + FCS_LEN) 1908 return; 1909 1910 /* and only beacons from the associated BSSID, please */ 1911 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid)) 1912 return; 1913 1914 rtlpriv->link_info.bcn_rx_inperiod++; 1915 } 1916 EXPORT_SYMBOL_GPL(rtl_beacon_statistic); 1917 1918 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw) 1919 { 1920 struct rtl_priv *rtlpriv = rtl_priv(hw); 1921 struct rtl_bssid_entry *entry, *next; 1922 1923 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1924 list_del(&entry->list); 1925 kfree(entry); 1926 rtlpriv->scan_list.num--; 1927 } 1928 } 1929 1930 static void rtl_free_entries_from_ack_queue(struct ieee80211_hw *hw, 1931 bool chk_timeout) 1932 { 1933 struct rtl_priv *rtlpriv = rtl_priv(hw); 1934 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1935 struct sk_buff_head *queue = &tx_report->queue; 1936 struct sk_buff *skb, *tmp; 1937 struct rtlwifi_tx_info *tx_info; 1938 1939 skb_queue_walk_safe(queue, skb, tmp) { 1940 tx_info = rtl_tx_skb_cb_info(skb); 1941 if (chk_timeout && 1942 time_after(tx_info->send_time + HZ, jiffies)) 1943 continue; 1944 skb_unlink(skb, queue); 1945 rtl_tx_status(hw, skb, false); 1946 } 1947 } 1948 1949 void rtl_scan_list_expire(struct ieee80211_hw *hw) 1950 { 1951 struct rtl_priv *rtlpriv = rtl_priv(hw); 1952 struct rtl_bssid_entry *entry, *next; 1953 unsigned long flags; 1954 1955 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1956 1957 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1958 /* 180 seconds */ 1959 if (jiffies_to_msecs(jiffies - entry->age) < 180000) 1960 continue; 1961 1962 list_del(&entry->list); 1963 rtlpriv->scan_list.num--; 1964 1965 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD, 1966 "BSSID=%pM is expire in scan list (total=%d)\n", 1967 entry->bssid, rtlpriv->scan_list.num); 1968 kfree(entry); 1969 } 1970 1971 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 1972 1973 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num; 1974 } 1975 1976 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb) 1977 { 1978 struct rtl_priv *rtlpriv = rtl_priv(hw); 1979 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1980 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1981 unsigned long flags; 1982 1983 struct rtl_bssid_entry *entry = NULL, *iter; 1984 1985 /* check if it is scanning */ 1986 if (!mac->act_scanning) 1987 return; 1988 1989 /* check if this really is a beacon */ 1990 if (!ieee80211_is_beacon(hdr->frame_control) && 1991 !ieee80211_is_probe_resp(hdr->frame_control)) 1992 return; 1993 1994 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1995 1996 list_for_each_entry(iter, &rtlpriv->scan_list.list, list) { 1997 if (memcmp(iter->bssid, hdr->addr3, ETH_ALEN) == 0) { 1998 list_del_init(&iter->list); 1999 entry = iter; 2000 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD, 2001 "Update BSSID=%pM to scan list (total=%d)\n", 2002 hdr->addr3, rtlpriv->scan_list.num); 2003 break; 2004 } 2005 } 2006 2007 if (!entry) { 2008 entry = kmalloc(sizeof(*entry), GFP_ATOMIC); 2009 2010 if (!entry) 2011 goto label_err; 2012 2013 memcpy(entry->bssid, hdr->addr3, ETH_ALEN); 2014 rtlpriv->scan_list.num++; 2015 2016 rtl_dbg(rtlpriv, COMP_SCAN, DBG_LOUD, 2017 "Add BSSID=%pM to scan list (total=%d)\n", 2018 hdr->addr3, rtlpriv->scan_list.num); 2019 } 2020 2021 entry->age = jiffies; 2022 2023 list_add_tail(&entry->list, &rtlpriv->scan_list.list); 2024 2025 label_err: 2026 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 2027 } 2028 EXPORT_SYMBOL(rtl_collect_scan_list); 2029 2030 static void rtl_watchdog_wq_callback(struct work_struct *work) 2031 { 2032 struct rtl_works *rtlworks = container_of(work, struct rtl_works, 2033 watchdog_wq.work); 2034 struct ieee80211_hw *hw = rtlworks->hw; 2035 struct rtl_priv *rtlpriv = rtl_priv(hw); 2036 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2037 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2038 bool busytraffic = false; 2039 bool tx_busy_traffic = false; 2040 bool rx_busy_traffic = false; 2041 bool higher_busytraffic = false; 2042 bool higher_busyrxtraffic = false; 2043 u8 idx, tid; 2044 u32 rx_cnt_inp4eriod = 0; 2045 u32 tx_cnt_inp4eriod = 0; 2046 u32 aver_rx_cnt_inperiod = 0; 2047 u32 aver_tx_cnt_inperiod = 0; 2048 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; 2049 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; 2050 2051 if (is_hal_stop(rtlhal)) 2052 return; 2053 2054 /* <1> Determine if action frame is allowed */ 2055 if (mac->link_state > MAC80211_NOLINK) { 2056 if (mac->cnt_after_linked < 20) 2057 mac->cnt_after_linked++; 2058 } else { 2059 mac->cnt_after_linked = 0; 2060 } 2061 2062 /* <2> to check if traffic busy, if 2063 * busytraffic we don't change channel 2064 */ 2065 if (mac->link_state >= MAC80211_LINKED) { 2066 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ 2067 for (idx = 0; idx <= 2; idx++) { 2068 rtlpriv->link_info.num_rx_in4period[idx] = 2069 rtlpriv->link_info.num_rx_in4period[idx + 1]; 2070 rtlpriv->link_info.num_tx_in4period[idx] = 2071 rtlpriv->link_info.num_tx_in4period[idx + 1]; 2072 } 2073 rtlpriv->link_info.num_rx_in4period[3] = 2074 rtlpriv->link_info.num_rx_inperiod; 2075 rtlpriv->link_info.num_tx_in4period[3] = 2076 rtlpriv->link_info.num_tx_inperiod; 2077 for (idx = 0; idx <= 3; idx++) { 2078 rx_cnt_inp4eriod += 2079 rtlpriv->link_info.num_rx_in4period[idx]; 2080 tx_cnt_inp4eriod += 2081 rtlpriv->link_info.num_tx_in4period[idx]; 2082 } 2083 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; 2084 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; 2085 2086 /* (2) check traffic busy */ 2087 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) { 2088 busytraffic = true; 2089 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod) 2090 rx_busy_traffic = true; 2091 else 2092 tx_busy_traffic = false; 2093 } 2094 2095 /* Higher Tx/Rx data. */ 2096 if (aver_rx_cnt_inperiod > 4000 || 2097 aver_tx_cnt_inperiod > 4000) { 2098 higher_busytraffic = true; 2099 2100 /* Extremely high Rx data. */ 2101 if (aver_rx_cnt_inperiod > 5000) 2102 higher_busyrxtraffic = true; 2103 } 2104 2105 /* check every tid's tx traffic */ 2106 for (tid = 0; tid <= 7; tid++) { 2107 for (idx = 0; idx <= 2; idx++) 2108 rtlpriv->link_info.tidtx_in4period[tid][idx] = 2109 rtlpriv->link_info.tidtx_in4period[tid] 2110 [idx + 1]; 2111 rtlpriv->link_info.tidtx_in4period[tid][3] = 2112 rtlpriv->link_info.tidtx_inperiod[tid]; 2113 2114 for (idx = 0; idx <= 3; idx++) 2115 tidtx_inp4eriod[tid] += 2116 rtlpriv->link_info.tidtx_in4period[tid][idx]; 2117 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; 2118 if (aver_tidtx_inperiod[tid] > 5000) 2119 rtlpriv->link_info.higher_busytxtraffic[tid] = 2120 true; 2121 else 2122 rtlpriv->link_info.higher_busytxtraffic[tid] = 2123 false; 2124 } 2125 2126 /* PS is controlled by coex. */ 2127 if (rtlpriv->cfg->ops->get_btc_status() && 2128 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv)) 2129 goto label_lps_done; 2130 2131 if (rtlpriv->link_info.num_rx_inperiod + 2132 rtlpriv->link_info.num_tx_inperiod > 8 || 2133 rtlpriv->link_info.num_rx_inperiod > 2) 2134 rtl_lps_leave(hw, true); 2135 else 2136 rtl_lps_enter(hw, true); 2137 2138 label_lps_done: 2139 ; 2140 } 2141 2142 for (tid = 0; tid <= 7; tid++) 2143 rtlpriv->link_info.tidtx_inperiod[tid] = 0; 2144 2145 rtlpriv->link_info.busytraffic = busytraffic; 2146 rtlpriv->link_info.higher_busytraffic = higher_busytraffic; 2147 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic; 2148 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic; 2149 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; 2150 2151 rtlpriv->stats.txbytesunicast_inperiod = 2152 rtlpriv->stats.txbytesunicast - 2153 rtlpriv->stats.txbytesunicast_last; 2154 rtlpriv->stats.rxbytesunicast_inperiod = 2155 rtlpriv->stats.rxbytesunicast - 2156 rtlpriv->stats.rxbytesunicast_last; 2157 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast; 2158 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast; 2159 2160 rtlpriv->stats.txbytesunicast_inperiod_tp = 2161 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 / 2162 1024 / 1024); 2163 rtlpriv->stats.rxbytesunicast_inperiod_tp = 2164 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 / 2165 1024 / 1024); 2166 2167 /* <3> DM */ 2168 if (!rtlpriv->cfg->mod_params->disable_watchdog) 2169 rtlpriv->cfg->ops->dm_watchdog(hw); 2170 2171 /* <4> roaming */ 2172 if (mac->link_state == MAC80211_LINKED && 2173 mac->opmode == NL80211_IFTYPE_STATION) { 2174 if ((rtlpriv->link_info.bcn_rx_inperiod + 2175 rtlpriv->link_info.num_rx_inperiod) == 0) { 2176 rtlpriv->link_info.roam_times++; 2177 rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG, 2178 "AP off for %d s\n", 2179 (rtlpriv->link_info.roam_times * 2)); 2180 2181 /* if we can't recv beacon for 10s, 2182 * we should reconnect this AP 2183 */ 2184 if (rtlpriv->link_info.roam_times >= 5) { 2185 pr_err("AP off, try to reconnect now\n"); 2186 rtlpriv->link_info.roam_times = 0; 2187 ieee80211_connection_loss( 2188 rtlpriv->mac80211.vif); 2189 } 2190 } else { 2191 rtlpriv->link_info.roam_times = 0; 2192 } 2193 } 2194 2195 if (rtlpriv->cfg->ops->get_btc_status()) 2196 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv); 2197 2198 if (rtlpriv->btcoexist.btc_info.in_4way) { 2199 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts + 2200 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME))) 2201 rtlpriv->btcoexist.btc_info.in_4way = false; 2202 } 2203 2204 rtlpriv->link_info.num_rx_inperiod = 0; 2205 rtlpriv->link_info.num_tx_inperiod = 0; 2206 rtlpriv->link_info.bcn_rx_inperiod = 0; 2207 2208 /* <6> scan list */ 2209 rtl_scan_list_expire(hw); 2210 2211 /* <7> check ack queue */ 2212 rtl_free_entries_from_ack_queue(hw, true); 2213 } 2214 2215 void rtl_watch_dog_timer_callback(struct timer_list *t) 2216 { 2217 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer); 2218 2219 queue_delayed_work(rtlpriv->works.rtl_wq, 2220 &rtlpriv->works.watchdog_wq, 0); 2221 2222 mod_timer(&rtlpriv->works.watchdog_timer, 2223 jiffies + MSECS(RTL_WATCH_DOG_TIME)); 2224 } 2225 2226 static void rtl_fwevt_wq_callback(struct work_struct *work) 2227 { 2228 struct rtl_works *rtlworks = container_of(work, struct rtl_works, 2229 fwevt_wq.work); 2230 struct ieee80211_hw *hw = rtlworks->hw; 2231 struct rtl_priv *rtlpriv = rtl_priv(hw); 2232 2233 rtlpriv->cfg->ops->c2h_command_handle(hw); 2234 } 2235 2236 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw, 2237 struct sk_buff *skb); 2238 2239 static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb) 2240 { 2241 u8 cmd_id = GET_C2H_CMD_ID(skb->data); 2242 2243 switch (cmd_id) { 2244 case C2H_BT_MP: 2245 return true; 2246 default: 2247 break; 2248 } 2249 2250 return false; 2251 } 2252 2253 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb) 2254 { 2255 struct rtl_priv *rtlpriv = rtl_priv(hw); 2256 2257 if (rtl_c2h_fast_cmd(hw, skb)) { 2258 rtl_c2h_content_parsing(hw, skb); 2259 kfree_skb(skb); 2260 return; 2261 } 2262 2263 /* enqueue */ 2264 skb_queue_tail(&rtlpriv->c2hcmd_queue, skb); 2265 2266 /* wake up wq */ 2267 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0); 2268 } 2269 EXPORT_SYMBOL(rtl_c2hcmd_enqueue); 2270 2271 static void rtl_c2h_content_parsing(struct ieee80211_hw *hw, 2272 struct sk_buff *skb) 2273 { 2274 struct rtl_priv *rtlpriv = rtl_priv(hw); 2275 struct rtl_hal_ops *hal_ops = rtlpriv->cfg->ops; 2276 const struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops; 2277 u8 cmd_id, cmd_len; 2278 u8 *cmd_buf = NULL; 2279 2280 cmd_id = GET_C2H_CMD_ID(skb->data); 2281 cmd_len = skb->len - C2H_DATA_OFFSET; 2282 cmd_buf = GET_C2H_DATA_PTR(skb->data); 2283 2284 switch (cmd_id) { 2285 case C2H_DBG: 2286 rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "[C2H], C2H_DBG!!\n"); 2287 break; 2288 case C2H_TXBF: 2289 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE, 2290 "[C2H], C2H_TXBF!!\n"); 2291 break; 2292 case C2H_TX_REPORT: 2293 rtl_tx_report_handler(hw, cmd_buf, cmd_len); 2294 break; 2295 case C2H_RA_RPT: 2296 if (hal_ops->c2h_ra_report_handler) 2297 hal_ops->c2h_ra_report_handler(hw, cmd_buf, cmd_len); 2298 break; 2299 case C2H_BT_INFO: 2300 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE, 2301 "[C2H], C2H_BT_INFO!!\n"); 2302 if (rtlpriv->cfg->ops->get_btc_status()) 2303 btc_ops->btc_btinfo_notify(rtlpriv, cmd_buf, cmd_len); 2304 break; 2305 case C2H_BT_MP: 2306 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE, 2307 "[C2H], C2H_BT_MP!!\n"); 2308 if (rtlpriv->cfg->ops->get_btc_status()) 2309 btc_ops->btc_btmpinfo_notify(rtlpriv, cmd_buf, cmd_len); 2310 break; 2311 default: 2312 rtl_dbg(rtlpriv, COMP_FW, DBG_TRACE, 2313 "[C2H], Unknown packet!! cmd_id(%#X)!\n", cmd_id); 2314 break; 2315 } 2316 } 2317 2318 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec) 2319 { 2320 struct rtl_priv *rtlpriv = rtl_priv(hw); 2321 struct sk_buff *skb; 2322 int i; 2323 2324 for (i = 0; i < 200; i++) { 2325 /* dequeue a task */ 2326 skb = skb_dequeue(&rtlpriv->c2hcmd_queue); 2327 2328 /* do it */ 2329 if (!skb) 2330 break; 2331 2332 rtl_dbg(rtlpriv, COMP_FW, DBG_DMESG, "C2H rx_desc_shift=%d\n", 2333 *((u8 *)skb->cb)); 2334 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_DMESG, 2335 "C2H data: ", skb->data, skb->len); 2336 2337 if (exec) 2338 rtl_c2h_content_parsing(hw, skb); 2339 2340 /* free */ 2341 dev_kfree_skb_any(skb); 2342 } 2343 } 2344 2345 static void rtl_c2hcmd_wq_callback(struct work_struct *work) 2346 { 2347 struct rtl_works *rtlworks = container_of(work, struct rtl_works, 2348 c2hcmd_wq.work); 2349 struct ieee80211_hw *hw = rtlworks->hw; 2350 2351 rtl_c2hcmd_launcher(hw, 1); 2352 } 2353 2354 /********************************************************* 2355 * 2356 * frame process functions 2357 * 2358 *********************************************************/ 2359 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) 2360 { 2361 struct ieee80211_mgmt *mgmt = (void *)data; 2362 u8 *pos, *end; 2363 2364 pos = (u8 *)mgmt->u.beacon.variable; 2365 end = data + len; 2366 while (pos < end) { 2367 if (pos + 2 + pos[1] > end) 2368 return NULL; 2369 2370 if (pos[0] == ie) 2371 return pos; 2372 2373 pos += 2 + pos[1]; 2374 } 2375 return NULL; 2376 } 2377 2378 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ 2379 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ 2380 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, 2381 enum ieee80211_smps_mode smps, 2382 u8 *da, u8 *bssid) 2383 { 2384 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2385 struct sk_buff *skb; 2386 struct ieee80211_mgmt *action_frame; 2387 2388 /* 27 = header + category + action + smps mode */ 2389 skb = dev_alloc_skb(27 + hw->extra_tx_headroom); 2390 if (!skb) 2391 return NULL; 2392 2393 skb_reserve(skb, hw->extra_tx_headroom); 2394 action_frame = skb_put_zero(skb, 27); 2395 memcpy(action_frame->da, da, ETH_ALEN); 2396 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); 2397 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2398 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2399 IEEE80211_STYPE_ACTION); 2400 action_frame->u.action.category = WLAN_CATEGORY_HT; 2401 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; 2402 switch (smps) { 2403 case IEEE80211_SMPS_AUTOMATIC:/* 0 */ 2404 case IEEE80211_SMPS_NUM_MODES:/* 4 */ 2405 WARN_ON(1); 2406 fallthrough; 2407 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ 2408 action_frame->u.action.u.ht_smps.smps_control = 2409 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ 2410 break; 2411 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ 2412 action_frame->u.action.u.ht_smps.smps_control = 2413 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ 2414 break; 2415 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ 2416 action_frame->u.action.u.ht_smps.smps_control = 2417 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ 2418 break; 2419 } 2420 2421 return skb; 2422 } 2423 2424 int rtl_send_smps_action(struct ieee80211_hw *hw, 2425 struct ieee80211_sta *sta, 2426 enum ieee80211_smps_mode smps) 2427 { 2428 struct rtl_priv *rtlpriv = rtl_priv(hw); 2429 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2430 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 2431 struct sk_buff *skb = NULL; 2432 struct rtl_tcb_desc tcb_desc; 2433 u8 bssid[ETH_ALEN] = {0}; 2434 2435 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 2436 2437 if (rtlpriv->mac80211.act_scanning) 2438 goto err_free; 2439 2440 if (!sta) 2441 goto err_free; 2442 2443 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON)) 2444 goto err_free; 2445 2446 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status)) 2447 goto err_free; 2448 2449 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) 2450 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN); 2451 else 2452 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN); 2453 2454 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid); 2455 /* this is a type = mgmt * stype = action frame */ 2456 if (skb) { 2457 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 2458 struct rtl_sta_info *sta_entry = 2459 (struct rtl_sta_info *) sta->drv_priv; 2460 sta_entry->mimo_ps = smps; 2461 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */ 2462 2463 info->control.rates[0].idx = 0; 2464 info->band = hw->conf.chandef.chan->band; 2465 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc); 2466 } 2467 return 1; 2468 2469 err_free: 2470 return 0; 2471 } 2472 EXPORT_SYMBOL(rtl_send_smps_action); 2473 2474 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation) 2475 { 2476 struct rtl_priv *rtlpriv = rtl_priv(hw); 2477 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2478 enum io_type iotype; 2479 2480 if (!is_hal_stop(rtlhal)) { 2481 switch (operation) { 2482 case SCAN_OPT_BACKUP: 2483 iotype = IO_CMD_PAUSE_DM_BY_SCAN; 2484 rtlpriv->cfg->ops->set_hw_reg(hw, 2485 HW_VAR_IO_CMD, 2486 (u8 *)&iotype); 2487 break; 2488 case SCAN_OPT_RESTORE: 2489 iotype = IO_CMD_RESUME_DM_BY_SCAN; 2490 rtlpriv->cfg->ops->set_hw_reg(hw, 2491 HW_VAR_IO_CMD, 2492 (u8 *)&iotype); 2493 break; 2494 default: 2495 pr_err("Unknown Scan Backup operation.\n"); 2496 break; 2497 } 2498 } 2499 } 2500 EXPORT_SYMBOL(rtl_phy_scan_operation_backup); 2501 2502 /* because mac80211 have issues when can receive del ba 2503 * so here we just make a fake del_ba if we receive a ba_req 2504 * but rx_agg was opened to let mac80211 release some ba 2505 * related resources, so please this del_ba for tx 2506 */ 2507 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, 2508 u8 *sa, u8 *bssid, u16 tid) 2509 { 2510 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2511 struct sk_buff *skb; 2512 struct ieee80211_mgmt *action_frame; 2513 u16 params; 2514 2515 /* 27 = header + category + action + smps mode */ 2516 skb = dev_alloc_skb(34 + hw->extra_tx_headroom); 2517 if (!skb) 2518 return NULL; 2519 2520 skb_reserve(skb, hw->extra_tx_headroom); 2521 action_frame = skb_put_zero(skb, 34); 2522 memcpy(action_frame->sa, sa, ETH_ALEN); 2523 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN); 2524 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2525 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2526 IEEE80211_STYPE_ACTION); 2527 action_frame->u.action.category = WLAN_CATEGORY_BACK; 2528 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA; 2529 params = (u16)(1 << 11); /* bit 11 initiator */ 2530 params |= (u16)(tid << 12); /* bit 15:12 TID number */ 2531 2532 action_frame->u.action.u.delba.params = cpu_to_le16(params); 2533 action_frame->u.action.u.delba.reason_code = 2534 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT); 2535 2536 return skb; 2537 } 2538 2539 /********************************************************* 2540 * 2541 * IOT functions 2542 * 2543 *********************************************************/ 2544 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, 2545 struct octet_string vendor_ie) 2546 { 2547 struct rtl_priv *rtlpriv = rtl_priv(hw); 2548 bool matched = false; 2549 static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; 2550 static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; 2551 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; 2552 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; 2553 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; 2554 static u8 racap[] = { 0x00, 0x0c, 0x43 }; 2555 static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; 2556 static u8 marvcap[] = { 0x00, 0x50, 0x43 }; 2557 2558 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || 2559 memcmp(vendor_ie.octet, athcap_2, 3) == 0) { 2560 rtlpriv->mac80211.vendor = PEER_ATH; 2561 matched = true; 2562 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || 2563 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || 2564 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { 2565 rtlpriv->mac80211.vendor = PEER_BROAD; 2566 matched = true; 2567 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { 2568 rtlpriv->mac80211.vendor = PEER_RAL; 2569 matched = true; 2570 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { 2571 rtlpriv->mac80211.vendor = PEER_CISCO; 2572 matched = true; 2573 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { 2574 rtlpriv->mac80211.vendor = PEER_MARV; 2575 matched = true; 2576 } 2577 2578 return matched; 2579 } 2580 2581 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, 2582 unsigned int len) 2583 { 2584 struct ieee80211_mgmt *mgmt = (void *)data; 2585 struct octet_string vendor_ie; 2586 u8 *pos, *end; 2587 2588 pos = (u8 *)mgmt->u.beacon.variable; 2589 end = data + len; 2590 while (pos < end) { 2591 if (pos[0] == 221) { 2592 vendor_ie.length = pos[1]; 2593 vendor_ie.octet = &pos[2]; 2594 if (rtl_chk_vendor_ouisub(hw, vendor_ie)) 2595 return true; 2596 } 2597 2598 if (pos + 2 + pos[1] > end) 2599 return false; 2600 2601 pos += 2 + pos[1]; 2602 } 2603 return false; 2604 } 2605 2606 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) 2607 { 2608 struct rtl_priv *rtlpriv = rtl_priv(hw); 2609 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2610 struct ieee80211_hdr *hdr = (void *)data; 2611 u32 vendor = PEER_UNKNOWN; 2612 2613 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; 2614 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; 2615 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; 2616 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; 2617 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; 2618 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; 2619 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; 2620 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; 2621 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; 2622 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; 2623 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; 2624 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; 2625 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; 2626 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; 2627 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; 2628 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; 2629 2630 if (mac->opmode != NL80211_IFTYPE_STATION) 2631 return; 2632 2633 if (mac->link_state == MAC80211_NOLINK) { 2634 mac->vendor = PEER_UNKNOWN; 2635 return; 2636 } 2637 2638 if (mac->cnt_after_linked > 2) 2639 return; 2640 2641 /* check if this really is a beacon */ 2642 if (!ieee80211_is_beacon(hdr->frame_control)) 2643 return; 2644 2645 /* min. beacon length + FCS_LEN */ 2646 if (len <= 40 + FCS_LEN) 2647 return; 2648 2649 /* and only beacons from the associated BSSID, please */ 2650 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid)) 2651 return; 2652 2653 if (rtl_find_221_ie(hw, data, len)) 2654 vendor = mac->vendor; 2655 2656 if ((memcmp(mac->bssid, ap5_1, 3) == 0) || 2657 (memcmp(mac->bssid, ap5_2, 3) == 0) || 2658 (memcmp(mac->bssid, ap5_3, 3) == 0) || 2659 (memcmp(mac->bssid, ap5_4, 3) == 0) || 2660 (memcmp(mac->bssid, ap5_5, 3) == 0) || 2661 (memcmp(mac->bssid, ap5_6, 3) == 0) || 2662 vendor == PEER_ATH) { 2663 vendor = PEER_ATH; 2664 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); 2665 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || 2666 (memcmp(mac->bssid, ap4_5, 3) == 0) || 2667 (memcmp(mac->bssid, ap4_1, 3) == 0) || 2668 (memcmp(mac->bssid, ap4_2, 3) == 0) || 2669 (memcmp(mac->bssid, ap4_3, 3) == 0) || 2670 vendor == PEER_RAL) { 2671 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); 2672 vendor = PEER_RAL; 2673 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || 2674 vendor == PEER_CISCO) { 2675 vendor = PEER_CISCO; 2676 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); 2677 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || 2678 (memcmp(mac->bssid, ap3_2, 3) == 0) || 2679 (memcmp(mac->bssid, ap3_3, 3) == 0) || 2680 vendor == PEER_BROAD) { 2681 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); 2682 vendor = PEER_BROAD; 2683 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || 2684 vendor == PEER_MARV) { 2685 vendor = PEER_MARV; 2686 rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); 2687 } 2688 2689 mac->vendor = vendor; 2690 } 2691 EXPORT_SYMBOL_GPL(rtl_recognize_peer); 2692 2693 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 2694 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 2695 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 2696 MODULE_LICENSE("GPL"); 2697 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); 2698 2699 struct rtl_global_var rtl_global_var = {}; 2700 EXPORT_SYMBOL_GPL(rtl_global_var); 2701 2702 static int __init rtl_core_module_init(void) 2703 { 2704 BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION); 2705 BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION); 2706 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION); 2707 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1)); 2708 2709 if (rtl_rate_control_register()) 2710 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n"); 2711 2712 /* add debugfs */ 2713 rtl_debugfs_add_topdir(); 2714 2715 /* init some global vars */ 2716 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list); 2717 spin_lock_init(&rtl_global_var.glb_list_lock); 2718 2719 return 0; 2720 } 2721 2722 static void __exit rtl_core_module_exit(void) 2723 { 2724 /*RC*/ 2725 rtl_rate_control_unregister(); 2726 2727 /* remove debugfs */ 2728 rtl_debugfs_remove_topdir(); 2729 } 2730 2731 module_init(rtl_core_module_init); 2732 module_exit(rtl_core_module_exit); 2733