1 /****************************************************************************** 2 * 3 * Copyright(c) 2009-2012 Realtek Corporation. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * The full GNU General Public License is included in this distribution in the 15 * file called LICENSE. 16 * 17 * Contact Information: 18 * wlanfae <wlanfae@realtek.com> 19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, 20 * Hsinchu 300, Taiwan. 21 * 22 * Larry Finger <Larry.Finger@lwfinger.net> 23 * 24 *****************************************************************************/ 25 26 #include "wifi.h" 27 #include "rc.h" 28 #include "base.h" 29 #include "efuse.h" 30 #include "cam.h" 31 #include "ps.h" 32 #include "regd.h" 33 #include "pci.h" 34 #include <linux/ip.h> 35 #include <linux/module.h> 36 #include <linux/udp.h> 37 38 /* 39 *NOTICE!!!: This file will be very big, we should 40 *keep it clear under following roles: 41 * 42 *This file include following parts, so, if you add new 43 *functions into this file, please check which part it 44 *should includes. or check if you should add new part 45 *for this file: 46 * 47 *1) mac80211 init functions 48 *2) tx information functions 49 *3) functions called by core.c 50 *4) wq & timer callback functions 51 *5) frame process functions 52 *6) IOT functions 53 *7) sysfs functions 54 *8) vif functions 55 *9) ... 56 */ 57 58 /********************************************************* 59 * 60 * mac80211 init functions 61 * 62 *********************************************************/ 63 static struct ieee80211_channel rtl_channeltable_2g[] = { 64 {.center_freq = 2412, .hw_value = 1,}, 65 {.center_freq = 2417, .hw_value = 2,}, 66 {.center_freq = 2422, .hw_value = 3,}, 67 {.center_freq = 2427, .hw_value = 4,}, 68 {.center_freq = 2432, .hw_value = 5,}, 69 {.center_freq = 2437, .hw_value = 6,}, 70 {.center_freq = 2442, .hw_value = 7,}, 71 {.center_freq = 2447, .hw_value = 8,}, 72 {.center_freq = 2452, .hw_value = 9,}, 73 {.center_freq = 2457, .hw_value = 10,}, 74 {.center_freq = 2462, .hw_value = 11,}, 75 {.center_freq = 2467, .hw_value = 12,}, 76 {.center_freq = 2472, .hw_value = 13,}, 77 {.center_freq = 2484, .hw_value = 14,}, 78 }; 79 80 static struct ieee80211_channel rtl_channeltable_5g[] = { 81 {.center_freq = 5180, .hw_value = 36,}, 82 {.center_freq = 5200, .hw_value = 40,}, 83 {.center_freq = 5220, .hw_value = 44,}, 84 {.center_freq = 5240, .hw_value = 48,}, 85 {.center_freq = 5260, .hw_value = 52,}, 86 {.center_freq = 5280, .hw_value = 56,}, 87 {.center_freq = 5300, .hw_value = 60,}, 88 {.center_freq = 5320, .hw_value = 64,}, 89 {.center_freq = 5500, .hw_value = 100,}, 90 {.center_freq = 5520, .hw_value = 104,}, 91 {.center_freq = 5540, .hw_value = 108,}, 92 {.center_freq = 5560, .hw_value = 112,}, 93 {.center_freq = 5580, .hw_value = 116,}, 94 {.center_freq = 5600, .hw_value = 120,}, 95 {.center_freq = 5620, .hw_value = 124,}, 96 {.center_freq = 5640, .hw_value = 128,}, 97 {.center_freq = 5660, .hw_value = 132,}, 98 {.center_freq = 5680, .hw_value = 136,}, 99 {.center_freq = 5700, .hw_value = 140,}, 100 {.center_freq = 5745, .hw_value = 149,}, 101 {.center_freq = 5765, .hw_value = 153,}, 102 {.center_freq = 5785, .hw_value = 157,}, 103 {.center_freq = 5805, .hw_value = 161,}, 104 {.center_freq = 5825, .hw_value = 165,}, 105 }; 106 107 static struct ieee80211_rate rtl_ratetable_2g[] = { 108 {.bitrate = 10, .hw_value = 0x00,}, 109 {.bitrate = 20, .hw_value = 0x01,}, 110 {.bitrate = 55, .hw_value = 0x02,}, 111 {.bitrate = 110, .hw_value = 0x03,}, 112 {.bitrate = 60, .hw_value = 0x04,}, 113 {.bitrate = 90, .hw_value = 0x05,}, 114 {.bitrate = 120, .hw_value = 0x06,}, 115 {.bitrate = 180, .hw_value = 0x07,}, 116 {.bitrate = 240, .hw_value = 0x08,}, 117 {.bitrate = 360, .hw_value = 0x09,}, 118 {.bitrate = 480, .hw_value = 0x0a,}, 119 {.bitrate = 540, .hw_value = 0x0b,}, 120 }; 121 122 static struct ieee80211_rate rtl_ratetable_5g[] = { 123 {.bitrate = 60, .hw_value = 0x04,}, 124 {.bitrate = 90, .hw_value = 0x05,}, 125 {.bitrate = 120, .hw_value = 0x06,}, 126 {.bitrate = 180, .hw_value = 0x07,}, 127 {.bitrate = 240, .hw_value = 0x08,}, 128 {.bitrate = 360, .hw_value = 0x09,}, 129 {.bitrate = 480, .hw_value = 0x0a,}, 130 {.bitrate = 540, .hw_value = 0x0b,}, 131 }; 132 133 static const struct ieee80211_supported_band rtl_band_2ghz = { 134 .band = NL80211_BAND_2GHZ, 135 136 .channels = rtl_channeltable_2g, 137 .n_channels = ARRAY_SIZE(rtl_channeltable_2g), 138 139 .bitrates = rtl_ratetable_2g, 140 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g), 141 142 .ht_cap = {0}, 143 }; 144 145 static struct ieee80211_supported_band rtl_band_5ghz = { 146 .band = NL80211_BAND_5GHZ, 147 148 .channels = rtl_channeltable_5g, 149 .n_channels = ARRAY_SIZE(rtl_channeltable_5g), 150 151 .bitrates = rtl_ratetable_5g, 152 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g), 153 154 .ht_cap = {0}, 155 }; 156 157 static const u8 tid_to_ac[] = { 158 2, /* IEEE80211_AC_BE */ 159 3, /* IEEE80211_AC_BK */ 160 3, /* IEEE80211_AC_BK */ 161 2, /* IEEE80211_AC_BE */ 162 1, /* IEEE80211_AC_VI */ 163 1, /* IEEE80211_AC_VI */ 164 0, /* IEEE80211_AC_VO */ 165 0, /* IEEE80211_AC_VO */ 166 }; 167 168 u8 rtl_tid_to_ac(u8 tid) 169 { 170 return tid_to_ac[tid]; 171 } 172 EXPORT_SYMBOL_GPL(rtl_tid_to_ac); 173 174 static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw, 175 struct ieee80211_sta_ht_cap *ht_cap) 176 { 177 struct rtl_priv *rtlpriv = rtl_priv(hw); 178 struct rtl_phy *rtlphy = &(rtlpriv->phy); 179 180 ht_cap->ht_supported = true; 181 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 182 IEEE80211_HT_CAP_SGI_40 | 183 IEEE80211_HT_CAP_SGI_20 | 184 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU; 185 186 if (rtlpriv->rtlhal.disable_amsdu_8k) 187 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 188 189 /* 190 *Maximum length of AMPDU that the STA can receive. 191 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 192 */ 193 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 194 195 /*Minimum MPDU start spacing , */ 196 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 197 198 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 199 200 /*hw->wiphy->bands[NL80211_BAND_2GHZ] 201 *base on ant_num 202 *rx_mask: RX mask 203 *if rx_ant = 1 rx_mask[0]= 0xff;==>MCS0-MCS7 204 *if rx_ant = 2 rx_mask[1]= 0xff;==>MCS8-MCS15 205 *if rx_ant >= 3 rx_mask[2]= 0xff; 206 *if BW_40 rx_mask[4]= 0x01; 207 *highest supported RX rate 208 */ 209 if (rtlpriv->dm.supp_phymode_switch) { 210 pr_info("Support phy mode switch\n"); 211 212 ht_cap->mcs.rx_mask[0] = 0xFF; 213 ht_cap->mcs.rx_mask[1] = 0xFF; 214 ht_cap->mcs.rx_mask[4] = 0x01; 215 216 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); 217 } else { 218 if (get_rf_type(rtlphy) == RF_1T2R || 219 get_rf_type(rtlphy) == RF_2T2R) { 220 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 221 "1T2R or 2T2R\n"); 222 ht_cap->mcs.rx_mask[0] = 0xFF; 223 ht_cap->mcs.rx_mask[1] = 0xFF; 224 ht_cap->mcs.rx_mask[4] = 0x01; 225 226 ht_cap->mcs.rx_highest = 227 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); 228 } else if (get_rf_type(rtlphy) == RF_1T1R) { 229 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n"); 230 231 ht_cap->mcs.rx_mask[0] = 0xFF; 232 ht_cap->mcs.rx_mask[1] = 0x00; 233 ht_cap->mcs.rx_mask[4] = 0x01; 234 235 ht_cap->mcs.rx_highest = 236 cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7); 237 } 238 } 239 } 240 241 static void _rtl_init_hw_vht_capab(struct ieee80211_hw *hw, 242 struct ieee80211_sta_vht_cap *vht_cap) 243 { 244 struct rtl_priv *rtlpriv = rtl_priv(hw); 245 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 246 247 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) { 248 u16 mcs_map; 249 250 vht_cap->vht_supported = true; 251 vht_cap->cap = 252 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | 253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 254 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 255 IEEE80211_VHT_CAP_SHORT_GI_80 | 256 IEEE80211_VHT_CAP_TXSTBC | 257 IEEE80211_VHT_CAP_RXSTBC_1 | 258 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 259 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 260 IEEE80211_VHT_CAP_HTC_VHT | 261 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 262 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | 263 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | 264 0; 265 266 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 267 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 | 268 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 269 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 273 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 274 275 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 276 vht_cap->vht_mcs.rx_highest = 277 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 278 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 279 vht_cap->vht_mcs.tx_highest = 280 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 281 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) { 282 u16 mcs_map; 283 284 vht_cap->vht_supported = true; 285 vht_cap->cap = 286 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | 287 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 288 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 289 IEEE80211_VHT_CAP_SHORT_GI_80 | 290 IEEE80211_VHT_CAP_TXSTBC | 291 IEEE80211_VHT_CAP_RXSTBC_1 | 292 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 293 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 294 IEEE80211_VHT_CAP_HTC_VHT | 295 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 296 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | 297 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | 298 0; 299 300 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 301 IEEE80211_VHT_MCS_NOT_SUPPORTED << 2 | 302 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 303 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 304 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 305 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 306 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 307 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 308 309 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 310 vht_cap->vht_mcs.rx_highest = 311 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9); 312 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 313 vht_cap->vht_mcs.tx_highest = 314 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_1NSS_80MHZ_MCS9); 315 } 316 } 317 318 static void _rtl_init_mac80211(struct ieee80211_hw *hw) 319 { 320 struct rtl_priv *rtlpriv = rtl_priv(hw); 321 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 322 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 323 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 324 struct ieee80211_supported_band *sband; 325 326 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && 327 rtlhal->bandset == BAND_ON_BOTH) { 328 /* 1: 2.4 G bands */ 329 /* <1> use mac->bands as mem for hw->wiphy->bands */ 330 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]); 331 332 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ] 333 * to default value(1T1R) */ 334 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), &rtl_band_2ghz, 335 sizeof(struct ieee80211_supported_band)); 336 337 /* <3> init ht cap base on ant_num */ 338 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 339 340 /* <4> set mac->sband to wiphy->sband */ 341 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; 342 343 /* 2: 5 G bands */ 344 /* <1> use mac->bands as mem for hw->wiphy->bands */ 345 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]); 346 347 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ] 348 * to default value(1T1R) */ 349 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), &rtl_band_5ghz, 350 sizeof(struct ieee80211_supported_band)); 351 352 /* <3> init ht cap base on ant_num */ 353 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 354 355 _rtl_init_hw_vht_capab(hw, &sband->vht_cap); 356 /* <4> set mac->sband to wiphy->sband */ 357 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; 358 } else { 359 if (rtlhal->current_bandtype == BAND_ON_2_4G) { 360 /* <1> use mac->bands as mem for hw->wiphy->bands */ 361 sband = &(rtlmac->bands[NL80211_BAND_2GHZ]); 362 363 /* <2> set hw->wiphy->bands[NL80211_BAND_2GHZ] 364 * to default value(1T1R) */ 365 memcpy(&(rtlmac->bands[NL80211_BAND_2GHZ]), 366 &rtl_band_2ghz, 367 sizeof(struct ieee80211_supported_band)); 368 369 /* <3> init ht cap base on ant_num */ 370 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 371 372 /* <4> set mac->sband to wiphy->sband */ 373 hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; 374 } else if (rtlhal->current_bandtype == BAND_ON_5G) { 375 /* <1> use mac->bands as mem for hw->wiphy->bands */ 376 sband = &(rtlmac->bands[NL80211_BAND_5GHZ]); 377 378 /* <2> set hw->wiphy->bands[NL80211_BAND_5GHZ] 379 * to default value(1T1R) */ 380 memcpy(&(rtlmac->bands[NL80211_BAND_5GHZ]), 381 &rtl_band_5ghz, 382 sizeof(struct ieee80211_supported_band)); 383 384 /* <3> init ht cap base on ant_num */ 385 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 386 387 _rtl_init_hw_vht_capab(hw, &sband->vht_cap); 388 /* <4> set mac->sband to wiphy->sband */ 389 hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; 390 } else { 391 pr_err("Err BAND %d\n", 392 rtlhal->current_bandtype); 393 } 394 } 395 /* <5> set hw caps */ 396 ieee80211_hw_set(hw, SIGNAL_DBM); 397 ieee80211_hw_set(hw, RX_INCLUDES_FCS); 398 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 399 ieee80211_hw_set(hw, CONNECTION_MONITOR); 400 ieee80211_hw_set(hw, MFP_CAPABLE); 401 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 402 403 /* swlps or hwlps has been set in diff chip in init_sw_vars */ 404 if (rtlpriv->psc.swctrl_lps) { 405 ieee80211_hw_set(hw, SUPPORTS_PS); 406 ieee80211_hw_set(hw, PS_NULLFUNC_STACK); 407 } 408 hw->wiphy->interface_modes = 409 BIT(NL80211_IFTYPE_AP) | 410 BIT(NL80211_IFTYPE_STATION) | 411 BIT(NL80211_IFTYPE_ADHOC) | 412 BIT(NL80211_IFTYPE_MESH_POINT) | 413 BIT(NL80211_IFTYPE_P2P_CLIENT) | 414 BIT(NL80211_IFTYPE_P2P_GO); 415 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 416 417 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 418 419 hw->wiphy->rts_threshold = 2347; 420 421 hw->queues = AC_MAX; 422 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; 423 424 /* TODO: Correct this value for our hw */ 425 /* TODO: define these hard code value */ 426 hw->max_listen_interval = 10; 427 hw->max_rate_tries = 4; 428 /* hw->max_rates = 1; */ 429 hw->sta_data_size = sizeof(struct rtl_sta_info); 430 431 /* wowlan is not supported by kernel if CONFIG_PM is not defined */ 432 #ifdef CONFIG_PM 433 if (rtlpriv->psc.wo_wlan_mode) { 434 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET) 435 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT; 436 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) { 437 rtlpriv->wowlan.n_patterns = 438 MAX_SUPPORT_WOL_PATTERN_NUM; 439 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE; 440 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE; 441 } 442 hw->wiphy->wowlan = &rtlpriv->wowlan; 443 } 444 #endif 445 446 /* <6> mac address */ 447 if (is_valid_ether_addr(rtlefuse->dev_addr)) { 448 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); 449 } else { 450 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; 451 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); 452 SET_IEEE80211_PERM_ADDR(hw, rtlmac1); 453 } 454 } 455 456 static void _rtl_init_deferred_work(struct ieee80211_hw *hw) 457 { 458 struct rtl_priv *rtlpriv = rtl_priv(hw); 459 460 /* <1> timer */ 461 setup_timer(&rtlpriv->works.watchdog_timer, 462 rtl_watch_dog_timer_callback, (unsigned long)hw); 463 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer, 464 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw); 465 /* <2> work queue */ 466 rtlpriv->works.hw = hw; 467 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); 468 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, 469 (void *)rtl_watchdog_wq_callback); 470 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, 471 (void *)rtl_ips_nic_off_wq_callback); 472 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, 473 (void *)rtl_swlps_wq_callback); 474 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, 475 (void *)rtl_swlps_rfon_wq_callback); 476 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, 477 (void *)rtl_fwevt_wq_callback); 478 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, 479 (void *)rtl_c2hcmd_wq_callback); 480 481 } 482 483 void rtl_deinit_deferred_work(struct ieee80211_hw *hw) 484 { 485 struct rtl_priv *rtlpriv = rtl_priv(hw); 486 487 del_timer_sync(&rtlpriv->works.watchdog_timer); 488 489 cancel_delayed_work(&rtlpriv->works.watchdog_wq); 490 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); 491 cancel_delayed_work(&rtlpriv->works.ps_work); 492 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq); 493 cancel_delayed_work(&rtlpriv->works.fwevt_wq); 494 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq); 495 } 496 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work); 497 498 void rtl_init_rfkill(struct ieee80211_hw *hw) 499 { 500 struct rtl_priv *rtlpriv = rtl_priv(hw); 501 502 bool radio_state; 503 bool blocked; 504 u8 valid = 0; 505 506 /*set init state to on */ 507 rtlpriv->rfkill.rfkill_state = true; 508 wiphy_rfkill_set_hw_state(hw->wiphy, 0); 509 510 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); 511 512 if (valid) { 513 pr_info("rtlwifi: wireless switch is %s\n", 514 rtlpriv->rfkill.rfkill_state ? "on" : "off"); 515 516 rtlpriv->rfkill.rfkill_state = radio_state; 517 518 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1; 519 wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 520 } 521 522 wiphy_rfkill_start_polling(hw->wiphy); 523 } 524 EXPORT_SYMBOL(rtl_init_rfkill); 525 526 void rtl_deinit_rfkill(struct ieee80211_hw *hw) 527 { 528 wiphy_rfkill_stop_polling(hw->wiphy); 529 } 530 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill); 531 532 int rtl_init_core(struct ieee80211_hw *hw) 533 { 534 struct rtl_priv *rtlpriv = rtl_priv(hw); 535 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 536 537 /* <1> init mac80211 */ 538 _rtl_init_mac80211(hw); 539 rtlmac->hw = hw; 540 541 /* <2> rate control register */ 542 hw->rate_control_algorithm = "rtl_rc"; 543 544 /* 545 * <3> init CRDA must come after init 546 * mac80211 hw in _rtl_init_mac80211. 547 */ 548 if (rtl_regd_init(hw, rtl_reg_notifier)) { 549 pr_err("REGD init failed\n"); 550 return 1; 551 } 552 553 /* <4> locks */ 554 mutex_init(&rtlpriv->locks.conf_mutex); 555 spin_lock_init(&rtlpriv->locks.ips_lock); 556 spin_lock_init(&rtlpriv->locks.irq_th_lock); 557 spin_lock_init(&rtlpriv->locks.h2c_lock); 558 spin_lock_init(&rtlpriv->locks.rf_ps_lock); 559 spin_lock_init(&rtlpriv->locks.rf_lock); 560 spin_lock_init(&rtlpriv->locks.waitq_lock); 561 spin_lock_init(&rtlpriv->locks.entry_list_lock); 562 spin_lock_init(&rtlpriv->locks.c2hcmd_lock); 563 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); 564 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock); 565 spin_lock_init(&rtlpriv->locks.fw_ps_lock); 566 spin_lock_init(&rtlpriv->locks.lps_lock); 567 spin_lock_init(&rtlpriv->locks.iqk_lock); 568 /* <5> init list */ 569 INIT_LIST_HEAD(&rtlpriv->entry_list); 570 INIT_LIST_HEAD(&rtlpriv->c2hcmd_list); 571 572 rtlmac->link_state = MAC80211_NOLINK; 573 574 /* <6> init deferred work */ 575 _rtl_init_deferred_work(hw); 576 577 return 0; 578 } 579 EXPORT_SYMBOL_GPL(rtl_init_core); 580 581 void rtl_deinit_core(struct ieee80211_hw *hw) 582 { 583 rtl_c2hcmd_launcher(hw, 0); 584 } 585 EXPORT_SYMBOL_GPL(rtl_deinit_core); 586 587 void rtl_init_rx_config(struct ieee80211_hw *hw) 588 { 589 struct rtl_priv *rtlpriv = rtl_priv(hw); 590 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 591 592 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf)); 593 } 594 EXPORT_SYMBOL_GPL(rtl_init_rx_config); 595 596 /********************************************************* 597 * 598 * tx information functions 599 * 600 *********************************************************/ 601 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw, 602 struct rtl_tcb_desc *tcb_desc, 603 struct ieee80211_tx_info *info) 604 { 605 struct rtl_priv *rtlpriv = rtl_priv(hw); 606 u8 rate_flag = info->control.rates[0].flags; 607 608 tcb_desc->use_shortpreamble = false; 609 610 /* 1M can only use Long Preamble. 11B spec */ 611 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M]) 612 return; 613 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) 614 tcb_desc->use_shortpreamble = true; 615 616 return; 617 } 618 619 static void _rtl_query_shortgi(struct ieee80211_hw *hw, 620 struct ieee80211_sta *sta, 621 struct rtl_tcb_desc *tcb_desc, 622 struct ieee80211_tx_info *info) 623 { 624 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 625 u8 rate_flag = info->control.rates[0].flags; 626 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0; 627 u8 sgi_80 = 0, bw_80 = 0; 628 tcb_desc->use_shortgi = false; 629 630 if (sta == NULL) 631 return; 632 633 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; 634 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; 635 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80; 636 637 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported)) 638 return; 639 640 if (!sgi_40 && !sgi_20) 641 return; 642 643 if (mac->opmode == NL80211_IFTYPE_STATION) { 644 bw_40 = mac->bw_40; 645 bw_80 = mac->bw_80; 646 } else if (mac->opmode == NL80211_IFTYPE_AP || 647 mac->opmode == NL80211_IFTYPE_ADHOC || 648 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 649 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; 650 bw_80 = sta->vht_cap.vht_supported; 651 } 652 653 if (bw_80) { 654 if (sgi_80) 655 tcb_desc->use_shortgi = true; 656 else 657 tcb_desc->use_shortgi = false; 658 } else { 659 if (bw_40 && sgi_40) 660 tcb_desc->use_shortgi = true; 661 else if (!bw_40 && sgi_20) 662 tcb_desc->use_shortgi = true; 663 } 664 665 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI)) 666 tcb_desc->use_shortgi = false; 667 } 668 669 static void _rtl_query_protection_mode(struct ieee80211_hw *hw, 670 struct rtl_tcb_desc *tcb_desc, 671 struct ieee80211_tx_info *info) 672 { 673 struct rtl_priv *rtlpriv = rtl_priv(hw); 674 u8 rate_flag = info->control.rates[0].flags; 675 676 /* Common Settings */ 677 tcb_desc->rts_stbc = false; 678 tcb_desc->cts_enable = false; 679 tcb_desc->rts_sc = 0; 680 tcb_desc->rts_bw = false; 681 tcb_desc->rts_use_shortpreamble = false; 682 tcb_desc->rts_use_shortgi = false; 683 684 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) { 685 /* Use CTS-to-SELF in protection mode. */ 686 tcb_desc->rts_enable = true; 687 tcb_desc->cts_enable = true; 688 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 689 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { 690 /* Use RTS-CTS in protection mode. */ 691 tcb_desc->rts_enable = true; 692 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 693 } 694 } 695 696 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, 697 struct ieee80211_sta *sta, 698 struct rtl_tcb_desc *tcb_desc) 699 { 700 struct rtl_priv *rtlpriv = rtl_priv(hw); 701 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 702 struct rtl_sta_info *sta_entry = NULL; 703 u8 ratr_index = 7; 704 705 if (sta) { 706 sta_entry = (struct rtl_sta_info *) sta->drv_priv; 707 ratr_index = sta_entry->ratr_index; 708 } 709 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { 710 if (mac->opmode == NL80211_IFTYPE_STATION) { 711 tcb_desc->ratr_index = 0; 712 } else if (mac->opmode == NL80211_IFTYPE_ADHOC || 713 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 714 if (tcb_desc->multicast || tcb_desc->broadcast) { 715 tcb_desc->hw_rate = 716 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; 717 tcb_desc->use_driver_rate = 1; 718 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 719 } else { 720 tcb_desc->ratr_index = ratr_index; 721 } 722 } else if (mac->opmode == NL80211_IFTYPE_AP) { 723 tcb_desc->ratr_index = ratr_index; 724 } 725 } 726 727 if (rtlpriv->dm.useramask) { 728 tcb_desc->ratr_index = ratr_index; 729 /* TODO we will differentiate adhoc and station future */ 730 if (mac->opmode == NL80211_IFTYPE_STATION || 731 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 732 tcb_desc->mac_id = 0; 733 734 if (mac->mode == WIRELESS_MODE_AC_5G) 735 tcb_desc->ratr_index = 736 RATR_INX_WIRELESS_AC_5N; 737 else if (mac->mode == WIRELESS_MODE_AC_24G) 738 tcb_desc->ratr_index = 739 RATR_INX_WIRELESS_AC_24N; 740 else if (mac->mode == WIRELESS_MODE_N_24G) 741 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB; 742 else if (mac->mode == WIRELESS_MODE_N_5G) 743 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG; 744 else if (mac->mode & WIRELESS_MODE_G) 745 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB; 746 else if (mac->mode & WIRELESS_MODE_B) 747 tcb_desc->ratr_index = RATR_INX_WIRELESS_B; 748 else if (mac->mode & WIRELESS_MODE_A) 749 tcb_desc->ratr_index = RATR_INX_WIRELESS_G; 750 751 } else if (mac->opmode == NL80211_IFTYPE_AP || 752 mac->opmode == NL80211_IFTYPE_ADHOC) { 753 if (NULL != sta) { 754 if (sta->aid > 0) 755 tcb_desc->mac_id = sta->aid + 1; 756 else 757 tcb_desc->mac_id = 1; 758 } else { 759 tcb_desc->mac_id = 0; 760 } 761 } 762 } 763 } 764 765 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, 766 struct ieee80211_sta *sta, 767 struct rtl_tcb_desc *tcb_desc) 768 { 769 struct rtl_priv *rtlpriv = rtl_priv(hw); 770 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 771 772 tcb_desc->packet_bw = false; 773 if (!sta) 774 return; 775 if (mac->opmode == NL80211_IFTYPE_AP || 776 mac->opmode == NL80211_IFTYPE_ADHOC || 777 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 778 if (!(sta->ht_cap.ht_supported) || 779 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) 780 return; 781 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 782 if (!mac->bw_40 || !(sta->ht_cap.ht_supported)) 783 return; 784 } 785 if (tcb_desc->multicast || tcb_desc->broadcast) 786 return; 787 788 /*use legency rate, shall use 20MHz */ 789 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) 790 return; 791 792 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40; 793 794 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE || 795 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) { 796 if (mac->opmode == NL80211_IFTYPE_AP || 797 mac->opmode == NL80211_IFTYPE_ADHOC || 798 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 799 if (!(sta->vht_cap.vht_supported)) 800 return; 801 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 802 if (!mac->bw_80 || 803 !(sta->vht_cap.vht_supported)) 804 return; 805 } 806 if (tcb_desc->hw_rate <= 807 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]) 808 return; 809 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80; 810 } 811 } 812 813 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw, 814 struct ieee80211_sta *sta) 815 { 816 struct rtl_priv *rtlpriv = rtl_priv(hw); 817 struct rtl_phy *rtlphy = &(rtlpriv->phy); 818 u8 hw_rate; 819 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map); 820 821 if ((get_rf_type(rtlphy) == RF_2T2R) && 822 (tx_mcs_map & 0x000c) != 0x000c) { 823 if ((tx_mcs_map & 0x000c) >> 2 == 824 IEEE80211_VHT_MCS_SUPPORT_0_7) 825 hw_rate = 826 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7]; 827 else if ((tx_mcs_map & 0x000c) >> 2 == 828 IEEE80211_VHT_MCS_SUPPORT_0_8) 829 hw_rate = 830 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 831 else 832 hw_rate = 833 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 834 } else { 835 if ((tx_mcs_map & 0x0003) == 836 IEEE80211_VHT_MCS_SUPPORT_0_7) 837 hw_rate = 838 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7]; 839 else if ((tx_mcs_map & 0x0003) == 840 IEEE80211_VHT_MCS_SUPPORT_0_8) 841 hw_rate = 842 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 843 else 844 hw_rate = 845 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 846 } 847 848 return hw_rate; 849 } 850 851 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw, 852 struct ieee80211_sta *sta) 853 { 854 struct rtl_priv *rtlpriv = rtl_priv(hw); 855 struct rtl_phy *rtlphy = &rtlpriv->phy; 856 u8 hw_rate; 857 858 if ((get_rf_type(rtlphy) == RF_2T2R) && 859 (sta->ht_cap.mcs.rx_mask[1] != 0)) 860 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; 861 else 862 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; 863 864 return hw_rate; 865 } 866 867 /* mac80211's rate_idx is like this: 868 * 869 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ 870 * 871 * B/G rate: 872 * (rx_status->flag & RX_FLAG_HT) = 0, 873 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11, 874 * 875 * N rate: 876 * (rx_status->flag & RX_FLAG_HT) = 1, 877 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 878 * 879 * 5G band:rx_status->band == NL80211_BAND_5GHZ 880 * A rate: 881 * (rx_status->flag & RX_FLAG_HT) = 0, 882 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7, 883 * 884 * N rate: 885 * (rx_status->flag & RX_FLAG_HT) = 1, 886 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 887 * 888 * VHT rates: 889 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9 890 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9 891 */ 892 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht, 893 u8 desc_rate) 894 { 895 int rate_idx; 896 897 if (isvht) { 898 switch (desc_rate) { 899 case DESC_RATEVHT1SS_MCS0: 900 rate_idx = 0; 901 break; 902 case DESC_RATEVHT1SS_MCS1: 903 rate_idx = 1; 904 break; 905 case DESC_RATEVHT1SS_MCS2: 906 rate_idx = 2; 907 break; 908 case DESC_RATEVHT1SS_MCS3: 909 rate_idx = 3; 910 break; 911 case DESC_RATEVHT1SS_MCS4: 912 rate_idx = 4; 913 break; 914 case DESC_RATEVHT1SS_MCS5: 915 rate_idx = 5; 916 break; 917 case DESC_RATEVHT1SS_MCS6: 918 rate_idx = 6; 919 break; 920 case DESC_RATEVHT1SS_MCS7: 921 rate_idx = 7; 922 break; 923 case DESC_RATEVHT1SS_MCS8: 924 rate_idx = 8; 925 break; 926 case DESC_RATEVHT1SS_MCS9: 927 rate_idx = 9; 928 break; 929 case DESC_RATEVHT2SS_MCS0: 930 rate_idx = 0; 931 break; 932 case DESC_RATEVHT2SS_MCS1: 933 rate_idx = 1; 934 break; 935 case DESC_RATEVHT2SS_MCS2: 936 rate_idx = 2; 937 break; 938 case DESC_RATEVHT2SS_MCS3: 939 rate_idx = 3; 940 break; 941 case DESC_RATEVHT2SS_MCS4: 942 rate_idx = 4; 943 break; 944 case DESC_RATEVHT2SS_MCS5: 945 rate_idx = 5; 946 break; 947 case DESC_RATEVHT2SS_MCS6: 948 rate_idx = 6; 949 break; 950 case DESC_RATEVHT2SS_MCS7: 951 rate_idx = 7; 952 break; 953 case DESC_RATEVHT2SS_MCS8: 954 rate_idx = 8; 955 break; 956 case DESC_RATEVHT2SS_MCS9: 957 rate_idx = 9; 958 break; 959 default: 960 rate_idx = 0; 961 break; 962 } 963 return rate_idx; 964 } 965 if (false == isht) { 966 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) { 967 switch (desc_rate) { 968 case DESC_RATE1M: 969 rate_idx = 0; 970 break; 971 case DESC_RATE2M: 972 rate_idx = 1; 973 break; 974 case DESC_RATE5_5M: 975 rate_idx = 2; 976 break; 977 case DESC_RATE11M: 978 rate_idx = 3; 979 break; 980 case DESC_RATE6M: 981 rate_idx = 4; 982 break; 983 case DESC_RATE9M: 984 rate_idx = 5; 985 break; 986 case DESC_RATE12M: 987 rate_idx = 6; 988 break; 989 case DESC_RATE18M: 990 rate_idx = 7; 991 break; 992 case DESC_RATE24M: 993 rate_idx = 8; 994 break; 995 case DESC_RATE36M: 996 rate_idx = 9; 997 break; 998 case DESC_RATE48M: 999 rate_idx = 10; 1000 break; 1001 case DESC_RATE54M: 1002 rate_idx = 11; 1003 break; 1004 default: 1005 rate_idx = 0; 1006 break; 1007 } 1008 } else { 1009 switch (desc_rate) { 1010 case DESC_RATE6M: 1011 rate_idx = 0; 1012 break; 1013 case DESC_RATE9M: 1014 rate_idx = 1; 1015 break; 1016 case DESC_RATE12M: 1017 rate_idx = 2; 1018 break; 1019 case DESC_RATE18M: 1020 rate_idx = 3; 1021 break; 1022 case DESC_RATE24M: 1023 rate_idx = 4; 1024 break; 1025 case DESC_RATE36M: 1026 rate_idx = 5; 1027 break; 1028 case DESC_RATE48M: 1029 rate_idx = 6; 1030 break; 1031 case DESC_RATE54M: 1032 rate_idx = 7; 1033 break; 1034 default: 1035 rate_idx = 0; 1036 break; 1037 } 1038 } 1039 } else { 1040 switch (desc_rate) { 1041 case DESC_RATEMCS0: 1042 rate_idx = 0; 1043 break; 1044 case DESC_RATEMCS1: 1045 rate_idx = 1; 1046 break; 1047 case DESC_RATEMCS2: 1048 rate_idx = 2; 1049 break; 1050 case DESC_RATEMCS3: 1051 rate_idx = 3; 1052 break; 1053 case DESC_RATEMCS4: 1054 rate_idx = 4; 1055 break; 1056 case DESC_RATEMCS5: 1057 rate_idx = 5; 1058 break; 1059 case DESC_RATEMCS6: 1060 rate_idx = 6; 1061 break; 1062 case DESC_RATEMCS7: 1063 rate_idx = 7; 1064 break; 1065 case DESC_RATEMCS8: 1066 rate_idx = 8; 1067 break; 1068 case DESC_RATEMCS9: 1069 rate_idx = 9; 1070 break; 1071 case DESC_RATEMCS10: 1072 rate_idx = 10; 1073 break; 1074 case DESC_RATEMCS11: 1075 rate_idx = 11; 1076 break; 1077 case DESC_RATEMCS12: 1078 rate_idx = 12; 1079 break; 1080 case DESC_RATEMCS13: 1081 rate_idx = 13; 1082 break; 1083 case DESC_RATEMCS14: 1084 rate_idx = 14; 1085 break; 1086 case DESC_RATEMCS15: 1087 rate_idx = 15; 1088 break; 1089 default: 1090 rate_idx = 0; 1091 break; 1092 } 1093 } 1094 return rate_idx; 1095 } 1096 EXPORT_SYMBOL(rtlwifi_rate_mapping); 1097 1098 void rtl_get_tcb_desc(struct ieee80211_hw *hw, 1099 struct ieee80211_tx_info *info, 1100 struct ieee80211_sta *sta, 1101 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) 1102 { 1103 struct rtl_priv *rtlpriv = rtl_priv(hw); 1104 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 1105 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1106 struct ieee80211_rate *txrate; 1107 __le16 fc = rtl_get_fc(skb); 1108 1109 txrate = ieee80211_get_tx_rate(hw, info); 1110 if (txrate) 1111 tcb_desc->hw_rate = txrate->hw_value; 1112 1113 if (ieee80211_is_data(fc)) { 1114 /* 1115 *we set data rate INX 0 1116 *in rtl_rc.c if skb is special data or 1117 *mgt which need low data rate. 1118 */ 1119 1120 /* 1121 *So tcb_desc->hw_rate is just used for 1122 *special data and mgt frames 1123 */ 1124 if (info->control.rates[0].idx == 0 || 1125 ieee80211_is_nullfunc(fc)) { 1126 tcb_desc->use_driver_rate = true; 1127 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 1128 1129 tcb_desc->disable_ratefallback = 1; 1130 } else { 1131 /* 1132 *because hw will nerver use hw_rate 1133 *when tcb_desc->use_driver_rate = false 1134 *so we never set highest N rate here, 1135 *and N rate will all be controlled by FW 1136 *when tcb_desc->use_driver_rate = false 1137 */ 1138 if (sta && sta->vht_cap.vht_supported) { 1139 tcb_desc->hw_rate = 1140 _rtl_get_vht_highest_n_rate(hw, sta); 1141 } else { 1142 if (sta && (sta->ht_cap.ht_supported)) { 1143 tcb_desc->hw_rate = 1144 _rtl_get_highest_n_rate(hw, sta); 1145 } else { 1146 if (rtlmac->mode == WIRELESS_MODE_B) { 1147 tcb_desc->hw_rate = 1148 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; 1149 } else { 1150 tcb_desc->hw_rate = 1151 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; 1152 } 1153 } 1154 } 1155 } 1156 1157 if (is_multicast_ether_addr(ieee80211_get_DA(hdr))) 1158 tcb_desc->multicast = 1; 1159 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr))) 1160 tcb_desc->broadcast = 1; 1161 1162 _rtl_txrate_selectmode(hw, sta, tcb_desc); 1163 _rtl_query_bandwidth_mode(hw, sta, tcb_desc); 1164 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); 1165 _rtl_query_shortgi(hw, sta, tcb_desc, info); 1166 _rtl_query_protection_mode(hw, tcb_desc, info); 1167 } else { 1168 tcb_desc->use_driver_rate = true; 1169 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 1170 tcb_desc->disable_ratefallback = 1; 1171 tcb_desc->mac_id = 0; 1172 tcb_desc->packet_bw = false; 1173 } 1174 } 1175 EXPORT_SYMBOL(rtl_get_tcb_desc); 1176 1177 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb) 1178 { 1179 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1180 struct rtl_priv *rtlpriv = rtl_priv(hw); 1181 __le16 fc = rtl_get_fc(skb); 1182 1183 if (rtlpriv->dm.supp_phymode_switch && 1184 mac->link_state < MAC80211_LINKED && 1185 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) { 1186 if (rtlpriv->cfg->ops->chk_switch_dmdp) 1187 rtlpriv->cfg->ops->chk_switch_dmdp(hw); 1188 } 1189 if (ieee80211_is_auth(fc)) { 1190 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); 1191 rtl_ips_nic_on(hw); 1192 1193 mac->link_state = MAC80211_LINKING; 1194 /* Dul mac */ 1195 rtlpriv->phy.need_iqk = true; 1196 1197 } 1198 1199 return true; 1200 } 1201 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc); 1202 1203 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa, 1204 u8 *bssid, u16 tid); 1205 1206 static void process_agg_start(struct ieee80211_hw *hw, 1207 struct ieee80211_hdr *hdr, u16 tid) 1208 { 1209 struct rtl_priv *rtlpriv = rtl_priv(hw); 1210 struct ieee80211_rx_status rx_status = { 0 }; 1211 struct sk_buff *skb_delba = NULL; 1212 1213 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid); 1214 if (skb_delba) { 1215 rx_status.freq = hw->conf.chandef.chan->center_freq; 1216 rx_status.band = hw->conf.chandef.chan->band; 1217 rx_status.flag |= RX_FLAG_DECRYPTED; 1218 rx_status.flag |= RX_FLAG_MACTIME_START; 1219 rx_status.rate_idx = 0; 1220 rx_status.signal = 50 + 10; 1221 memcpy(IEEE80211_SKB_RXCB(skb_delba), 1222 &rx_status, sizeof(rx_status)); 1223 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, 1224 "fake del\n", 1225 skb_delba->data, 1226 skb_delba->len); 1227 ieee80211_rx_irqsafe(hw, skb_delba); 1228 } 1229 } 1230 1231 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 1232 { 1233 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1234 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1235 struct rtl_priv *rtlpriv = rtl_priv(hw); 1236 __le16 fc = rtl_get_fc(skb); 1237 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN)); 1238 u8 category; 1239 1240 if (!ieee80211_is_action(fc)) 1241 return true; 1242 1243 category = *act; 1244 act++; 1245 switch (category) { 1246 case ACT_CAT_BA: 1247 switch (*act) { 1248 case ACT_ADDBAREQ: 1249 if (mac->act_scanning) 1250 return false; 1251 1252 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1253 "%s ACT_ADDBAREQ From :%pM\n", 1254 is_tx ? "Tx" : "Rx", hdr->addr2); 1255 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n", 1256 skb->data, skb->len); 1257 if (!is_tx) { 1258 struct ieee80211_sta *sta = NULL; 1259 struct rtl_sta_info *sta_entry = NULL; 1260 struct rtl_tid_data *tid_data; 1261 struct ieee80211_mgmt *mgmt = (void *)skb->data; 1262 u16 capab = 0, tid = 0; 1263 1264 rcu_read_lock(); 1265 sta = rtl_find_sta(hw, hdr->addr3); 1266 if (sta == NULL) { 1267 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV, 1268 DBG_DMESG, "sta is NULL\n"); 1269 rcu_read_unlock(); 1270 return true; 1271 } 1272 1273 sta_entry = 1274 (struct rtl_sta_info *)sta->drv_priv; 1275 if (!sta_entry) { 1276 rcu_read_unlock(); 1277 return true; 1278 } 1279 capab = 1280 le16_to_cpu(mgmt->u.action.u.addba_req.capab); 1281 tid = (capab & 1282 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; 1283 tid_data = &sta_entry->tids[tid]; 1284 if (tid_data->agg.rx_agg_state == 1285 RTL_RX_AGG_START) 1286 process_agg_start(hw, hdr, tid); 1287 rcu_read_unlock(); 1288 } 1289 break; 1290 case ACT_ADDBARSP: 1291 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1292 "%s ACT_ADDBARSP From :%pM\n", 1293 is_tx ? "Tx" : "Rx", hdr->addr2); 1294 break; 1295 case ACT_DELBA: 1296 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1297 "ACT_ADDBADEL From :%pM\n", hdr->addr2); 1298 break; 1299 } 1300 break; 1301 default: 1302 break; 1303 } 1304 1305 return true; 1306 } 1307 EXPORT_SYMBOL_GPL(rtl_action_proc); 1308 1309 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc) 1310 { 1311 struct ieee80211_hw *hw = rtlpriv->hw; 1312 1313 rtlpriv->ra.is_special_data = true; 1314 if (rtlpriv->cfg->ops->get_btc_status()) 1315 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify( 1316 rtlpriv, 1); 1317 rtl_lps_leave(hw); 1318 ppsc->last_delaylps_stamp_jiffies = jiffies; 1319 } 1320 1321 /*should call before software enc*/ 1322 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx, 1323 bool is_enc) 1324 { 1325 struct rtl_priv *rtlpriv = rtl_priv(hw); 1326 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1327 __le16 fc = rtl_get_fc(skb); 1328 u16 ether_type; 1329 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); 1330 u8 encrypt_header_len = 0; 1331 u8 offset; 1332 const struct iphdr *ip; 1333 1334 if (!ieee80211_is_data(fc)) 1335 goto end; 1336 1337 switch (rtlpriv->sec.pairwise_enc_algorithm) { 1338 case WEP40_ENCRYPTION: 1339 case WEP104_ENCRYPTION: 1340 encrypt_header_len = 4;/*WEP_IV_LEN*/ 1341 break; 1342 case TKIP_ENCRYPTION: 1343 encrypt_header_len = 8;/*TKIP_IV_LEN*/ 1344 break; 1345 case AESCCMP_ENCRYPTION: 1346 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/ 1347 break; 1348 default: 1349 break; 1350 } 1351 1352 offset = mac_hdr_len + SNAP_SIZE; 1353 if (is_enc) 1354 offset += encrypt_header_len; 1355 ether_type = be16_to_cpup((__be16 *)(skb->data + offset)); 1356 1357 if (ETH_P_IP == ether_type) { 1358 ip = (struct iphdr *)((u8 *)skb->data + offset + 1359 PROTOC_TYPE_SIZE); 1360 if (IPPROTO_UDP == ip->protocol) { 1361 struct udphdr *udp = (struct udphdr *)((u8 *)ip + 1362 (ip->ihl << 2)); 1363 if (((((u8 *)udp)[1] == 68) && 1364 (((u8 *)udp)[3] == 67)) || 1365 ((((u8 *)udp)[1] == 67) && 1366 (((u8 *)udp)[3] == 68))) { 1367 /* 68 : UDP BOOTP client 1368 * 67 : UDP BOOTP server 1369 */ 1370 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), 1371 DBG_DMESG, "dhcp %s !!\n", 1372 (is_tx) ? "Tx" : "Rx"); 1373 1374 if (is_tx) 1375 setup_arp_tx(rtlpriv, ppsc); 1376 return true; 1377 } 1378 } 1379 } else if (ETH_P_ARP == ether_type) { 1380 if (is_tx) 1381 setup_arp_tx(rtlpriv, ppsc); 1382 1383 return true; 1384 } else if (ETH_P_PAE == ether_type) { 1385 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1386 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"); 1387 1388 if (is_tx) { 1389 rtlpriv->ra.is_special_data = true; 1390 rtl_lps_leave(hw); 1391 ppsc->last_delaylps_stamp_jiffies = jiffies; 1392 } 1393 1394 return true; 1395 } else if (ETH_P_IPV6 == ether_type) { 1396 /* TODO: Handle any IPv6 cases that need special handling. 1397 * For now, always return false 1398 */ 1399 goto end; 1400 } 1401 1402 end: 1403 rtlpriv->ra.is_special_data = false; 1404 return false; 1405 } 1406 EXPORT_SYMBOL_GPL(rtl_is_special_data); 1407 1408 /********************************************************* 1409 * 1410 * functions called by core.c 1411 * 1412 *********************************************************/ 1413 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1414 struct ieee80211_sta *sta, u16 tid, u16 *ssn) 1415 { 1416 struct rtl_priv *rtlpriv = rtl_priv(hw); 1417 struct rtl_tid_data *tid_data; 1418 struct rtl_sta_info *sta_entry = NULL; 1419 1420 if (sta == NULL) 1421 return -EINVAL; 1422 1423 if (unlikely(tid >= MAX_TID_COUNT)) 1424 return -EINVAL; 1425 1426 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1427 if (!sta_entry) 1428 return -ENXIO; 1429 tid_data = &sta_entry->tids[tid]; 1430 1431 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1432 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1433 tid_data->seq_number); 1434 1435 *ssn = tid_data->seq_number; 1436 tid_data->agg.agg_state = RTL_AGG_START; 1437 1438 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1439 return 0; 1440 } 1441 1442 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1443 struct ieee80211_sta *sta, u16 tid) 1444 { 1445 struct rtl_priv *rtlpriv = rtl_priv(hw); 1446 struct rtl_tid_data *tid_data; 1447 struct rtl_sta_info *sta_entry = NULL; 1448 1449 if (sta == NULL) 1450 return -EINVAL; 1451 1452 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1453 "on ra = %pM tid = %d\n", sta->addr, tid); 1454 1455 if (unlikely(tid >= MAX_TID_COUNT)) 1456 return -EINVAL; 1457 1458 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1459 tid_data = &sta_entry->tids[tid]; 1460 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; 1461 1462 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1463 return 0; 1464 } 1465 1466 int rtl_rx_agg_start(struct ieee80211_hw *hw, 1467 struct ieee80211_sta *sta, u16 tid) 1468 { 1469 struct rtl_priv *rtlpriv = rtl_priv(hw); 1470 struct rtl_tid_data *tid_data; 1471 struct rtl_sta_info *sta_entry = NULL; 1472 1473 if (sta == NULL) 1474 return -EINVAL; 1475 1476 if (unlikely(tid >= MAX_TID_COUNT)) 1477 return -EINVAL; 1478 1479 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1480 if (!sta_entry) 1481 return -ENXIO; 1482 tid_data = &sta_entry->tids[tid]; 1483 1484 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG, 1485 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1486 tid_data->seq_number); 1487 1488 tid_data->agg.rx_agg_state = RTL_RX_AGG_START; 1489 return 0; 1490 } 1491 1492 int rtl_rx_agg_stop(struct ieee80211_hw *hw, 1493 struct ieee80211_sta *sta, u16 tid) 1494 { 1495 struct rtl_priv *rtlpriv = rtl_priv(hw); 1496 struct rtl_sta_info *sta_entry = NULL; 1497 1498 if (sta == NULL) 1499 return -EINVAL; 1500 1501 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1502 "on ra = %pM tid = %d\n", sta->addr, tid); 1503 1504 if (unlikely(tid >= MAX_TID_COUNT)) 1505 return -EINVAL; 1506 1507 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1508 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP; 1509 1510 return 0; 1511 } 1512 int rtl_tx_agg_oper(struct ieee80211_hw *hw, 1513 struct ieee80211_sta *sta, u16 tid) 1514 { 1515 struct rtl_priv *rtlpriv = rtl_priv(hw); 1516 struct rtl_sta_info *sta_entry = NULL; 1517 1518 if (sta == NULL) 1519 return -EINVAL; 1520 1521 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1522 "on ra = %pM tid = %d\n", sta->addr, tid); 1523 1524 if (unlikely(tid >= MAX_TID_COUNT)) 1525 return -EINVAL; 1526 1527 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1528 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; 1529 1530 return 0; 1531 } 1532 1533 /********************************************************* 1534 * 1535 * wq & timer callback functions 1536 * 1537 *********************************************************/ 1538 /* this function is used for roaming */ 1539 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb) 1540 { 1541 struct rtl_priv *rtlpriv = rtl_priv(hw); 1542 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 1543 1544 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION) 1545 return; 1546 1547 if (rtlpriv->mac80211.link_state < MAC80211_LINKED) 1548 return; 1549 1550 /* check if this really is a beacon */ 1551 if (!ieee80211_is_beacon(hdr->frame_control) && 1552 !ieee80211_is_probe_resp(hdr->frame_control)) 1553 return; 1554 1555 /* min. beacon length + FCS_LEN */ 1556 if (skb->len <= 40 + FCS_LEN) 1557 return; 1558 1559 /* and only beacons from the associated BSSID, please */ 1560 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid)) 1561 return; 1562 1563 rtlpriv->link_info.bcn_rx_inperiod++; 1564 } 1565 EXPORT_SYMBOL_GPL(rtl_beacon_statistic); 1566 1567 void rtl_watchdog_wq_callback(void *data) 1568 { 1569 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 1570 struct rtl_works, 1571 watchdog_wq); 1572 struct ieee80211_hw *hw = rtlworks->hw; 1573 struct rtl_priv *rtlpriv = rtl_priv(hw); 1574 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1575 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1576 bool busytraffic = false; 1577 bool tx_busy_traffic = false; 1578 bool rx_busy_traffic = false; 1579 bool higher_busytraffic = false; 1580 bool higher_busyrxtraffic = false; 1581 u8 idx, tid; 1582 u32 rx_cnt_inp4eriod = 0; 1583 u32 tx_cnt_inp4eriod = 0; 1584 u32 aver_rx_cnt_inperiod = 0; 1585 u32 aver_tx_cnt_inperiod = 0; 1586 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; 1587 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; 1588 1589 if (is_hal_stop(rtlhal)) 1590 return; 1591 1592 /* <1> Determine if action frame is allowed */ 1593 if (mac->link_state > MAC80211_NOLINK) { 1594 if (mac->cnt_after_linked < 20) 1595 mac->cnt_after_linked++; 1596 } else { 1597 mac->cnt_after_linked = 0; 1598 } 1599 1600 /* <2> to check if traffic busy, if 1601 * busytraffic we don't change channel 1602 */ 1603 if (mac->link_state >= MAC80211_LINKED) { 1604 1605 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ 1606 for (idx = 0; idx <= 2; idx++) { 1607 rtlpriv->link_info.num_rx_in4period[idx] = 1608 rtlpriv->link_info.num_rx_in4period[idx + 1]; 1609 rtlpriv->link_info.num_tx_in4period[idx] = 1610 rtlpriv->link_info.num_tx_in4period[idx + 1]; 1611 } 1612 rtlpriv->link_info.num_rx_in4period[3] = 1613 rtlpriv->link_info.num_rx_inperiod; 1614 rtlpriv->link_info.num_tx_in4period[3] = 1615 rtlpriv->link_info.num_tx_inperiod; 1616 for (idx = 0; idx <= 3; idx++) { 1617 rx_cnt_inp4eriod += 1618 rtlpriv->link_info.num_rx_in4period[idx]; 1619 tx_cnt_inp4eriod += 1620 rtlpriv->link_info.num_tx_in4period[idx]; 1621 } 1622 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; 1623 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; 1624 1625 /* (2) check traffic busy */ 1626 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) { 1627 busytraffic = true; 1628 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod) 1629 rx_busy_traffic = true; 1630 else 1631 tx_busy_traffic = false; 1632 } 1633 1634 /* Higher Tx/Rx data. */ 1635 if (aver_rx_cnt_inperiod > 4000 || 1636 aver_tx_cnt_inperiod > 4000) { 1637 higher_busytraffic = true; 1638 1639 /* Extremely high Rx data. */ 1640 if (aver_rx_cnt_inperiod > 5000) 1641 higher_busyrxtraffic = true; 1642 } 1643 1644 /* check every tid's tx traffic */ 1645 for (tid = 0; tid <= 7; tid++) { 1646 for (idx = 0; idx <= 2; idx++) 1647 rtlpriv->link_info.tidtx_in4period[tid][idx] = 1648 rtlpriv->link_info.tidtx_in4period[tid] 1649 [idx + 1]; 1650 rtlpriv->link_info.tidtx_in4period[tid][3] = 1651 rtlpriv->link_info.tidtx_inperiod[tid]; 1652 1653 for (idx = 0; idx <= 3; idx++) 1654 tidtx_inp4eriod[tid] += 1655 rtlpriv->link_info.tidtx_in4period[tid][idx]; 1656 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; 1657 if (aver_tidtx_inperiod[tid] > 5000) 1658 rtlpriv->link_info.higher_busytxtraffic[tid] = 1659 true; 1660 else 1661 rtlpriv->link_info.higher_busytxtraffic[tid] = 1662 false; 1663 } 1664 1665 if (((rtlpriv->link_info.num_rx_inperiod + 1666 rtlpriv->link_info.num_tx_inperiod) > 8) || 1667 (rtlpriv->link_info.num_rx_inperiod > 2)) 1668 rtl_lps_leave(hw); 1669 else 1670 rtl_lps_enter(hw); 1671 } 1672 1673 rtlpriv->link_info.num_rx_inperiod = 0; 1674 rtlpriv->link_info.num_tx_inperiod = 0; 1675 for (tid = 0; tid <= 7; tid++) 1676 rtlpriv->link_info.tidtx_inperiod[tid] = 0; 1677 1678 rtlpriv->link_info.busytraffic = busytraffic; 1679 rtlpriv->link_info.higher_busytraffic = higher_busytraffic; 1680 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic; 1681 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic; 1682 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; 1683 1684 /* <3> DM */ 1685 if (!rtlpriv->cfg->mod_params->disable_watchdog) 1686 rtlpriv->cfg->ops->dm_watchdog(hw); 1687 1688 /* <4> roaming */ 1689 if (mac->link_state == MAC80211_LINKED && 1690 mac->opmode == NL80211_IFTYPE_STATION) { 1691 if ((rtlpriv->link_info.bcn_rx_inperiod + 1692 rtlpriv->link_info.num_rx_inperiod) == 0) { 1693 rtlpriv->link_info.roam_times++; 1694 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG, 1695 "AP off for %d s\n", 1696 (rtlpriv->link_info.roam_times * 2)); 1697 1698 /* if we can't recv beacon for 10s, 1699 * we should reconnect this AP 1700 */ 1701 if (rtlpriv->link_info.roam_times >= 5) { 1702 pr_err("AP off, try to reconnect now\n"); 1703 rtlpriv->link_info.roam_times = 0; 1704 ieee80211_connection_loss( 1705 rtlpriv->mac80211.vif); 1706 } 1707 } else { 1708 rtlpriv->link_info.roam_times = 0; 1709 } 1710 } 1711 1712 if (rtlpriv->cfg->ops->get_btc_status()) 1713 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv); 1714 1715 rtlpriv->link_info.bcn_rx_inperiod = 0; 1716 } 1717 1718 void rtl_watch_dog_timer_callback(unsigned long data) 1719 { 1720 struct ieee80211_hw *hw = (struct ieee80211_hw *)data; 1721 struct rtl_priv *rtlpriv = rtl_priv(hw); 1722 1723 queue_delayed_work(rtlpriv->works.rtl_wq, 1724 &rtlpriv->works.watchdog_wq, 0); 1725 1726 mod_timer(&rtlpriv->works.watchdog_timer, 1727 jiffies + MSECS(RTL_WATCH_DOG_TIME)); 1728 } 1729 void rtl_fwevt_wq_callback(void *data) 1730 { 1731 struct rtl_works *rtlworks = 1732 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq); 1733 struct ieee80211_hw *hw = rtlworks->hw; 1734 struct rtl_priv *rtlpriv = rtl_priv(hw); 1735 1736 rtlpriv->cfg->ops->c2h_command_handle(hw); 1737 } 1738 1739 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val) 1740 { 1741 struct rtl_priv *rtlpriv = rtl_priv(hw); 1742 unsigned long flags; 1743 struct rtl_c2hcmd *c2hcmd; 1744 1745 c2hcmd = kmalloc(sizeof(*c2hcmd), 1746 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 1747 1748 if (!c2hcmd) 1749 goto label_err; 1750 1751 c2hcmd->val = kmalloc(len, 1752 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 1753 1754 if (!c2hcmd->val) 1755 goto label_err2; 1756 1757 /* fill data */ 1758 c2hcmd->tag = tag; 1759 c2hcmd->len = len; 1760 memcpy(c2hcmd->val, val, len); 1761 1762 /* enqueue */ 1763 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 1764 1765 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list); 1766 1767 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 1768 1769 /* wake up wq */ 1770 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0); 1771 1772 return; 1773 1774 label_err2: 1775 kfree(c2hcmd); 1776 1777 label_err: 1778 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING, 1779 "C2H cmd enqueue fail.\n"); 1780 } 1781 EXPORT_SYMBOL(rtl_c2hcmd_enqueue); 1782 1783 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec) 1784 { 1785 struct rtl_priv *rtlpriv = rtl_priv(hw); 1786 unsigned long flags; 1787 struct rtl_c2hcmd *c2hcmd; 1788 int i; 1789 1790 for (i = 0; i < 200; i++) { 1791 /* dequeue a task */ 1792 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 1793 1794 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list, 1795 struct rtl_c2hcmd, list); 1796 1797 if (c2hcmd) 1798 list_del(&c2hcmd->list); 1799 1800 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 1801 1802 /* do it */ 1803 if (!c2hcmd) 1804 break; 1805 1806 if (rtlpriv->cfg->ops->c2h_content_parsing && exec) 1807 rtlpriv->cfg->ops->c2h_content_parsing(hw, 1808 c2hcmd->tag, c2hcmd->len, c2hcmd->val); 1809 1810 /* free */ 1811 kfree(c2hcmd->val); 1812 1813 kfree(c2hcmd); 1814 } 1815 } 1816 1817 void rtl_c2hcmd_wq_callback(void *data) 1818 { 1819 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 1820 struct rtl_works, 1821 c2hcmd_wq); 1822 struct ieee80211_hw *hw = rtlworks->hw; 1823 1824 rtl_c2hcmd_launcher(hw, 1); 1825 } 1826 1827 void rtl_easy_concurrent_retrytimer_callback(unsigned long data) 1828 { 1829 struct ieee80211_hw *hw = (struct ieee80211_hw *)data; 1830 struct rtl_priv *rtlpriv = rtl_priv(hw); 1831 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv; 1832 1833 if (buddy_priv == NULL) 1834 return; 1835 1836 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw); 1837 } 1838 /********************************************************* 1839 * 1840 * frame process functions 1841 * 1842 *********************************************************/ 1843 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) 1844 { 1845 struct ieee80211_mgmt *mgmt = (void *)data; 1846 u8 *pos, *end; 1847 1848 pos = (u8 *)mgmt->u.beacon.variable; 1849 end = data + len; 1850 while (pos < end) { 1851 if (pos + 2 + pos[1] > end) 1852 return NULL; 1853 1854 if (pos[0] == ie) 1855 return pos; 1856 1857 pos += 2 + pos[1]; 1858 } 1859 return NULL; 1860 } 1861 1862 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ 1863 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ 1864 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, 1865 enum ieee80211_smps_mode smps, 1866 u8 *da, u8 *bssid) 1867 { 1868 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 1869 struct sk_buff *skb; 1870 struct ieee80211_mgmt *action_frame; 1871 1872 /* 27 = header + category + action + smps mode */ 1873 skb = dev_alloc_skb(27 + hw->extra_tx_headroom); 1874 if (!skb) 1875 return NULL; 1876 1877 skb_reserve(skb, hw->extra_tx_headroom); 1878 action_frame = (void *)skb_put(skb, 27); 1879 memset(action_frame, 0, 27); 1880 memcpy(action_frame->da, da, ETH_ALEN); 1881 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); 1882 memcpy(action_frame->bssid, bssid, ETH_ALEN); 1883 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 1884 IEEE80211_STYPE_ACTION); 1885 action_frame->u.action.category = WLAN_CATEGORY_HT; 1886 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; 1887 switch (smps) { 1888 case IEEE80211_SMPS_AUTOMATIC:/* 0 */ 1889 case IEEE80211_SMPS_NUM_MODES:/* 4 */ 1890 WARN_ON(1); 1891 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it. 1892 * According to Kernel Code, here is right. 1893 */ 1894 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ 1895 action_frame->u.action.u.ht_smps.smps_control = 1896 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ 1897 break; 1898 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ 1899 action_frame->u.action.u.ht_smps.smps_control = 1900 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ 1901 break; 1902 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ 1903 action_frame->u.action.u.ht_smps.smps_control = 1904 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ 1905 break; 1906 } 1907 1908 return skb; 1909 } 1910 1911 int rtl_send_smps_action(struct ieee80211_hw *hw, 1912 struct ieee80211_sta *sta, 1913 enum ieee80211_smps_mode smps) 1914 { 1915 struct rtl_priv *rtlpriv = rtl_priv(hw); 1916 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1917 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1918 struct sk_buff *skb = NULL; 1919 struct rtl_tcb_desc tcb_desc; 1920 u8 bssid[ETH_ALEN] = {0}; 1921 1922 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 1923 1924 if (rtlpriv->mac80211.act_scanning) 1925 goto err_free; 1926 1927 if (!sta) 1928 goto err_free; 1929 1930 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON)) 1931 goto err_free; 1932 1933 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status)) 1934 goto err_free; 1935 1936 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) 1937 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN); 1938 else 1939 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN); 1940 1941 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid); 1942 /* this is a type = mgmt * stype = action frame */ 1943 if (skb) { 1944 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1945 struct rtl_sta_info *sta_entry = 1946 (struct rtl_sta_info *) sta->drv_priv; 1947 sta_entry->mimo_ps = smps; 1948 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */ 1949 1950 info->control.rates[0].idx = 0; 1951 info->band = hw->conf.chandef.chan->band; 1952 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc); 1953 } 1954 return 1; 1955 1956 err_free: 1957 return 0; 1958 } 1959 EXPORT_SYMBOL(rtl_send_smps_action); 1960 1961 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation) 1962 { 1963 struct rtl_priv *rtlpriv = rtl_priv(hw); 1964 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1965 enum io_type iotype; 1966 1967 if (!is_hal_stop(rtlhal)) { 1968 switch (operation) { 1969 case SCAN_OPT_BACKUP: 1970 iotype = IO_CMD_PAUSE_DM_BY_SCAN; 1971 rtlpriv->cfg->ops->set_hw_reg(hw, 1972 HW_VAR_IO_CMD, 1973 (u8 *)&iotype); 1974 break; 1975 case SCAN_OPT_RESTORE: 1976 iotype = IO_CMD_RESUME_DM_BY_SCAN; 1977 rtlpriv->cfg->ops->set_hw_reg(hw, 1978 HW_VAR_IO_CMD, 1979 (u8 *)&iotype); 1980 break; 1981 default: 1982 pr_err("Unknown Scan Backup operation.\n"); 1983 break; 1984 } 1985 } 1986 } 1987 EXPORT_SYMBOL(rtl_phy_scan_operation_backup); 1988 1989 /* because mac80211 have issues when can receive del ba 1990 * so here we just make a fake del_ba if we receive a ba_req 1991 * but rx_agg was opened to let mac80211 release some ba 1992 * related resources, so please this del_ba for tx 1993 */ 1994 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, 1995 u8 *sa, u8 *bssid, u16 tid) 1996 { 1997 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 1998 struct sk_buff *skb; 1999 struct ieee80211_mgmt *action_frame; 2000 u16 params; 2001 2002 /* 27 = header + category + action + smps mode */ 2003 skb = dev_alloc_skb(34 + hw->extra_tx_headroom); 2004 if (!skb) 2005 return NULL; 2006 2007 skb_reserve(skb, hw->extra_tx_headroom); 2008 action_frame = (void *)skb_put(skb, 34); 2009 memset(action_frame, 0, 34); 2010 memcpy(action_frame->sa, sa, ETH_ALEN); 2011 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN); 2012 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2013 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2014 IEEE80211_STYPE_ACTION); 2015 action_frame->u.action.category = WLAN_CATEGORY_BACK; 2016 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA; 2017 params = (u16)(1 << 11); /* bit 11 initiator */ 2018 params |= (u16)(tid << 12); /* bit 15:12 TID number */ 2019 2020 action_frame->u.action.u.delba.params = cpu_to_le16(params); 2021 action_frame->u.action.u.delba.reason_code = 2022 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT); 2023 2024 return skb; 2025 } 2026 2027 /********************************************************* 2028 * 2029 * IOT functions 2030 * 2031 *********************************************************/ 2032 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, 2033 struct octet_string vendor_ie) 2034 { 2035 struct rtl_priv *rtlpriv = rtl_priv(hw); 2036 bool matched = false; 2037 static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; 2038 static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; 2039 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; 2040 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; 2041 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; 2042 static u8 racap[] = { 0x00, 0x0c, 0x43 }; 2043 static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; 2044 static u8 marvcap[] = { 0x00, 0x50, 0x43 }; 2045 2046 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || 2047 memcmp(vendor_ie.octet, athcap_2, 3) == 0) { 2048 rtlpriv->mac80211.vendor = PEER_ATH; 2049 matched = true; 2050 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || 2051 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || 2052 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { 2053 rtlpriv->mac80211.vendor = PEER_BROAD; 2054 matched = true; 2055 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { 2056 rtlpriv->mac80211.vendor = PEER_RAL; 2057 matched = true; 2058 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { 2059 rtlpriv->mac80211.vendor = PEER_CISCO; 2060 matched = true; 2061 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { 2062 rtlpriv->mac80211.vendor = PEER_MARV; 2063 matched = true; 2064 } 2065 2066 return matched; 2067 } 2068 2069 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, 2070 unsigned int len) 2071 { 2072 struct ieee80211_mgmt *mgmt = (void *)data; 2073 struct octet_string vendor_ie; 2074 u8 *pos, *end; 2075 2076 pos = (u8 *)mgmt->u.beacon.variable; 2077 end = data + len; 2078 while (pos < end) { 2079 if (pos[0] == 221) { 2080 vendor_ie.length = pos[1]; 2081 vendor_ie.octet = &pos[2]; 2082 if (rtl_chk_vendor_ouisub(hw, vendor_ie)) 2083 return true; 2084 } 2085 2086 if (pos + 2 + pos[1] > end) 2087 return false; 2088 2089 pos += 2 + pos[1]; 2090 } 2091 return false; 2092 } 2093 2094 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) 2095 { 2096 struct rtl_priv *rtlpriv = rtl_priv(hw); 2097 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2098 struct ieee80211_hdr *hdr = (void *)data; 2099 u32 vendor = PEER_UNKNOWN; 2100 2101 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; 2102 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; 2103 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; 2104 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; 2105 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; 2106 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; 2107 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; 2108 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; 2109 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; 2110 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; 2111 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; 2112 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; 2113 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; 2114 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; 2115 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; 2116 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; 2117 2118 if (mac->opmode != NL80211_IFTYPE_STATION) 2119 return; 2120 2121 if (mac->link_state == MAC80211_NOLINK) { 2122 mac->vendor = PEER_UNKNOWN; 2123 return; 2124 } 2125 2126 if (mac->cnt_after_linked > 2) 2127 return; 2128 2129 /* check if this really is a beacon */ 2130 if (!ieee80211_is_beacon(hdr->frame_control)) 2131 return; 2132 2133 /* min. beacon length + FCS_LEN */ 2134 if (len <= 40 + FCS_LEN) 2135 return; 2136 2137 /* and only beacons from the associated BSSID, please */ 2138 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid)) 2139 return; 2140 2141 if (rtl_find_221_ie(hw, data, len)) 2142 vendor = mac->vendor; 2143 2144 if ((memcmp(mac->bssid, ap5_1, 3) == 0) || 2145 (memcmp(mac->bssid, ap5_2, 3) == 0) || 2146 (memcmp(mac->bssid, ap5_3, 3) == 0) || 2147 (memcmp(mac->bssid, ap5_4, 3) == 0) || 2148 (memcmp(mac->bssid, ap5_5, 3) == 0) || 2149 (memcmp(mac->bssid, ap5_6, 3) == 0) || 2150 vendor == PEER_ATH) { 2151 vendor = PEER_ATH; 2152 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); 2153 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || 2154 (memcmp(mac->bssid, ap4_5, 3) == 0) || 2155 (memcmp(mac->bssid, ap4_1, 3) == 0) || 2156 (memcmp(mac->bssid, ap4_2, 3) == 0) || 2157 (memcmp(mac->bssid, ap4_3, 3) == 0) || 2158 vendor == PEER_RAL) { 2159 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); 2160 vendor = PEER_RAL; 2161 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || 2162 vendor == PEER_CISCO) { 2163 vendor = PEER_CISCO; 2164 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); 2165 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || 2166 (memcmp(mac->bssid, ap3_2, 3) == 0) || 2167 (memcmp(mac->bssid, ap3_3, 3) == 0) || 2168 vendor == PEER_BROAD) { 2169 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); 2170 vendor = PEER_BROAD; 2171 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || 2172 vendor == PEER_MARV) { 2173 vendor = PEER_MARV; 2174 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); 2175 } 2176 2177 mac->vendor = vendor; 2178 } 2179 EXPORT_SYMBOL_GPL(rtl_recognize_peer); 2180 2181 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 2182 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 2183 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 2184 MODULE_LICENSE("GPL"); 2185 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); 2186 2187 struct rtl_global_var rtl_global_var = {}; 2188 EXPORT_SYMBOL_GPL(rtl_global_var); 2189 2190 static int __init rtl_core_module_init(void) 2191 { 2192 if (rtl_rate_control_register()) 2193 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n"); 2194 2195 /* init some global vars */ 2196 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list); 2197 spin_lock_init(&rtl_global_var.glb_list_lock); 2198 2199 return 0; 2200 } 2201 2202 static void __exit rtl_core_module_exit(void) 2203 { 2204 /*RC*/ 2205 rtl_rate_control_unregister(); 2206 } 2207 2208 module_init(rtl_core_module_init); 2209 module_exit(rtl_core_module_exit); 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