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 if (rtlpriv->psc.fwctrl_lps) { 409 ieee80211_hw_set(hw, SUPPORTS_PS); 410 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 411 } 412 hw->wiphy->interface_modes = 413 BIT(NL80211_IFTYPE_AP) | 414 BIT(NL80211_IFTYPE_STATION) | 415 BIT(NL80211_IFTYPE_ADHOC) | 416 BIT(NL80211_IFTYPE_MESH_POINT) | 417 BIT(NL80211_IFTYPE_P2P_CLIENT) | 418 BIT(NL80211_IFTYPE_P2P_GO); 419 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 420 421 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 422 423 hw->wiphy->rts_threshold = 2347; 424 425 hw->queues = AC_MAX; 426 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; 427 428 /* TODO: Correct this value for our hw */ 429 /* TODO: define these hard code value */ 430 hw->max_listen_interval = 10; 431 hw->max_rate_tries = 4; 432 /* hw->max_rates = 1; */ 433 hw->sta_data_size = sizeof(struct rtl_sta_info); 434 435 /* wowlan is not supported by kernel if CONFIG_PM is not defined */ 436 #ifdef CONFIG_PM 437 if (rtlpriv->psc.wo_wlan_mode) { 438 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET) 439 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT; 440 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) { 441 rtlpriv->wowlan.n_patterns = 442 MAX_SUPPORT_WOL_PATTERN_NUM; 443 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE; 444 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE; 445 } 446 hw->wiphy->wowlan = &rtlpriv->wowlan; 447 } 448 #endif 449 450 /* <6> mac address */ 451 if (is_valid_ether_addr(rtlefuse->dev_addr)) { 452 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); 453 } else { 454 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; 455 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); 456 SET_IEEE80211_PERM_ADDR(hw, rtlmac1); 457 } 458 } 459 460 static void _rtl_init_deferred_work(struct ieee80211_hw *hw) 461 { 462 struct rtl_priv *rtlpriv = rtl_priv(hw); 463 464 /* <1> timer */ 465 setup_timer(&rtlpriv->works.watchdog_timer, 466 rtl_watch_dog_timer_callback, (unsigned long)hw); 467 setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer, 468 rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw); 469 /* <2> work queue */ 470 rtlpriv->works.hw = hw; 471 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); 472 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, 473 (void *)rtl_watchdog_wq_callback); 474 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, 475 (void *)rtl_ips_nic_off_wq_callback); 476 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, 477 (void *)rtl_swlps_wq_callback); 478 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, 479 (void *)rtl_swlps_rfon_wq_callback); 480 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, 481 (void *)rtl_fwevt_wq_callback); 482 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, 483 (void *)rtl_c2hcmd_wq_callback); 484 485 } 486 487 void rtl_deinit_deferred_work(struct ieee80211_hw *hw) 488 { 489 struct rtl_priv *rtlpriv = rtl_priv(hw); 490 491 del_timer_sync(&rtlpriv->works.watchdog_timer); 492 493 cancel_delayed_work(&rtlpriv->works.watchdog_wq); 494 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); 495 cancel_delayed_work(&rtlpriv->works.ps_work); 496 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq); 497 cancel_delayed_work(&rtlpriv->works.fwevt_wq); 498 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq); 499 } 500 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work); 501 502 void rtl_init_rfkill(struct ieee80211_hw *hw) 503 { 504 struct rtl_priv *rtlpriv = rtl_priv(hw); 505 506 bool radio_state; 507 bool blocked; 508 u8 valid = 0; 509 510 /*set init state to on */ 511 rtlpriv->rfkill.rfkill_state = true; 512 wiphy_rfkill_set_hw_state(hw->wiphy, 0); 513 514 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); 515 516 if (valid) { 517 pr_info("rtlwifi: wireless switch is %s\n", 518 rtlpriv->rfkill.rfkill_state ? "on" : "off"); 519 520 rtlpriv->rfkill.rfkill_state = radio_state; 521 522 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1; 523 wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 524 } 525 526 wiphy_rfkill_start_polling(hw->wiphy); 527 } 528 EXPORT_SYMBOL(rtl_init_rfkill); 529 530 void rtl_deinit_rfkill(struct ieee80211_hw *hw) 531 { 532 wiphy_rfkill_stop_polling(hw->wiphy); 533 } 534 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill); 535 536 int rtl_init_core(struct ieee80211_hw *hw) 537 { 538 struct rtl_priv *rtlpriv = rtl_priv(hw); 539 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 540 541 /* <1> init mac80211 */ 542 _rtl_init_mac80211(hw); 543 rtlmac->hw = hw; 544 545 /* <2> rate control register */ 546 hw->rate_control_algorithm = "rtl_rc"; 547 548 /* 549 * <3> init CRDA must come after init 550 * mac80211 hw in _rtl_init_mac80211. 551 */ 552 if (rtl_regd_init(hw, rtl_reg_notifier)) { 553 pr_err("REGD init failed\n"); 554 return 1; 555 } 556 557 /* <4> locks */ 558 mutex_init(&rtlpriv->locks.conf_mutex); 559 spin_lock_init(&rtlpriv->locks.ips_lock); 560 spin_lock_init(&rtlpriv->locks.irq_th_lock); 561 spin_lock_init(&rtlpriv->locks.h2c_lock); 562 spin_lock_init(&rtlpriv->locks.rf_ps_lock); 563 spin_lock_init(&rtlpriv->locks.rf_lock); 564 spin_lock_init(&rtlpriv->locks.waitq_lock); 565 spin_lock_init(&rtlpriv->locks.entry_list_lock); 566 spin_lock_init(&rtlpriv->locks.c2hcmd_lock); 567 spin_lock_init(&rtlpriv->locks.scan_list_lock); 568 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); 569 spin_lock_init(&rtlpriv->locks.check_sendpkt_lock); 570 spin_lock_init(&rtlpriv->locks.fw_ps_lock); 571 spin_lock_init(&rtlpriv->locks.lps_lock); 572 spin_lock_init(&rtlpriv->locks.iqk_lock); 573 /* <5> init list */ 574 INIT_LIST_HEAD(&rtlpriv->entry_list); 575 INIT_LIST_HEAD(&rtlpriv->c2hcmd_list); 576 INIT_LIST_HEAD(&rtlpriv->scan_list.list); 577 578 rtlmac->link_state = MAC80211_NOLINK; 579 580 /* <6> init deferred work */ 581 _rtl_init_deferred_work(hw); 582 583 return 0; 584 } 585 EXPORT_SYMBOL_GPL(rtl_init_core); 586 587 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw); 588 589 void rtl_deinit_core(struct ieee80211_hw *hw) 590 { 591 rtl_c2hcmd_launcher(hw, 0); 592 rtl_free_entries_from_scan_list(hw); 593 } 594 EXPORT_SYMBOL_GPL(rtl_deinit_core); 595 596 void rtl_init_rx_config(struct ieee80211_hw *hw) 597 { 598 struct rtl_priv *rtlpriv = rtl_priv(hw); 599 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 600 601 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf)); 602 } 603 EXPORT_SYMBOL_GPL(rtl_init_rx_config); 604 605 /********************************************************* 606 * 607 * tx information functions 608 * 609 *********************************************************/ 610 static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw, 611 struct rtl_tcb_desc *tcb_desc, 612 struct ieee80211_tx_info *info) 613 { 614 struct rtl_priv *rtlpriv = rtl_priv(hw); 615 u8 rate_flag = info->control.rates[0].flags; 616 617 tcb_desc->use_shortpreamble = false; 618 619 /* 1M can only use Long Preamble. 11B spec */ 620 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M]) 621 return; 622 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) 623 tcb_desc->use_shortpreamble = true; 624 625 return; 626 } 627 628 static void _rtl_query_shortgi(struct ieee80211_hw *hw, 629 struct ieee80211_sta *sta, 630 struct rtl_tcb_desc *tcb_desc, 631 struct ieee80211_tx_info *info) 632 { 633 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 634 u8 rate_flag = info->control.rates[0].flags; 635 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0; 636 u8 sgi_80 = 0, bw_80 = 0; 637 tcb_desc->use_shortgi = false; 638 639 if (sta == NULL) 640 return; 641 642 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; 643 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; 644 sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80; 645 646 if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported)) 647 return; 648 649 if (!sgi_40 && !sgi_20) 650 return; 651 652 if (mac->opmode == NL80211_IFTYPE_STATION) { 653 bw_40 = mac->bw_40; 654 bw_80 = mac->bw_80; 655 } else if (mac->opmode == NL80211_IFTYPE_AP || 656 mac->opmode == NL80211_IFTYPE_ADHOC || 657 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 658 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; 659 bw_80 = sta->vht_cap.vht_supported; 660 } 661 662 if (bw_80) { 663 if (sgi_80) 664 tcb_desc->use_shortgi = true; 665 else 666 tcb_desc->use_shortgi = false; 667 } else { 668 if (bw_40 && sgi_40) 669 tcb_desc->use_shortgi = true; 670 else if (!bw_40 && sgi_20) 671 tcb_desc->use_shortgi = true; 672 } 673 674 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI)) 675 tcb_desc->use_shortgi = false; 676 } 677 678 static void _rtl_query_protection_mode(struct ieee80211_hw *hw, 679 struct rtl_tcb_desc *tcb_desc, 680 struct ieee80211_tx_info *info) 681 { 682 struct rtl_priv *rtlpriv = rtl_priv(hw); 683 u8 rate_flag = info->control.rates[0].flags; 684 685 /* Common Settings */ 686 tcb_desc->rts_stbc = false; 687 tcb_desc->cts_enable = false; 688 tcb_desc->rts_sc = 0; 689 tcb_desc->rts_bw = false; 690 tcb_desc->rts_use_shortpreamble = false; 691 tcb_desc->rts_use_shortgi = false; 692 693 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) { 694 /* Use CTS-to-SELF in protection mode. */ 695 tcb_desc->rts_enable = true; 696 tcb_desc->cts_enable = true; 697 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 698 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { 699 /* Use RTS-CTS in protection mode. */ 700 tcb_desc->rts_enable = true; 701 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 702 } 703 } 704 705 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, 706 struct ieee80211_sta *sta, 707 struct rtl_tcb_desc *tcb_desc) 708 { 709 struct rtl_priv *rtlpriv = rtl_priv(hw); 710 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 711 struct rtl_sta_info *sta_entry = NULL; 712 u8 ratr_index = 7; 713 714 if (sta) { 715 sta_entry = (struct rtl_sta_info *) sta->drv_priv; 716 ratr_index = sta_entry->ratr_index; 717 } 718 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { 719 if (mac->opmode == NL80211_IFTYPE_STATION) { 720 tcb_desc->ratr_index = 0; 721 } else if (mac->opmode == NL80211_IFTYPE_ADHOC || 722 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 723 if (tcb_desc->multicast || tcb_desc->broadcast) { 724 tcb_desc->hw_rate = 725 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; 726 tcb_desc->use_driver_rate = 1; 727 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 728 } else { 729 tcb_desc->ratr_index = ratr_index; 730 } 731 } else if (mac->opmode == NL80211_IFTYPE_AP) { 732 tcb_desc->ratr_index = ratr_index; 733 } 734 } 735 736 if (rtlpriv->dm.useramask) { 737 tcb_desc->ratr_index = ratr_index; 738 /* TODO we will differentiate adhoc and station future */ 739 if (mac->opmode == NL80211_IFTYPE_STATION || 740 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 741 tcb_desc->mac_id = 0; 742 743 if (mac->mode == WIRELESS_MODE_AC_5G) 744 tcb_desc->ratr_index = 745 RATR_INX_WIRELESS_AC_5N; 746 else if (mac->mode == WIRELESS_MODE_AC_24G) 747 tcb_desc->ratr_index = 748 RATR_INX_WIRELESS_AC_24N; 749 else if (mac->mode == WIRELESS_MODE_N_24G) 750 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB; 751 else if (mac->mode == WIRELESS_MODE_N_5G) 752 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG; 753 else if (mac->mode & WIRELESS_MODE_G) 754 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB; 755 else if (mac->mode & WIRELESS_MODE_B) 756 tcb_desc->ratr_index = RATR_INX_WIRELESS_B; 757 else if (mac->mode & WIRELESS_MODE_A) 758 tcb_desc->ratr_index = RATR_INX_WIRELESS_G; 759 760 } else if (mac->opmode == NL80211_IFTYPE_AP || 761 mac->opmode == NL80211_IFTYPE_ADHOC) { 762 if (NULL != sta) { 763 if (sta->aid > 0) 764 tcb_desc->mac_id = sta->aid + 1; 765 else 766 tcb_desc->mac_id = 1; 767 } else { 768 tcb_desc->mac_id = 0; 769 } 770 } 771 } 772 } 773 774 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, 775 struct ieee80211_sta *sta, 776 struct rtl_tcb_desc *tcb_desc) 777 { 778 struct rtl_priv *rtlpriv = rtl_priv(hw); 779 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 780 781 tcb_desc->packet_bw = false; 782 if (!sta) 783 return; 784 if (mac->opmode == NL80211_IFTYPE_AP || 785 mac->opmode == NL80211_IFTYPE_ADHOC || 786 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 787 if (!(sta->ht_cap.ht_supported) || 788 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) 789 return; 790 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 791 if (!mac->bw_40 || !(sta->ht_cap.ht_supported)) 792 return; 793 } 794 if (tcb_desc->multicast || tcb_desc->broadcast) 795 return; 796 797 /*use legency rate, shall use 20MHz */ 798 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) 799 return; 800 801 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40; 802 803 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE || 804 rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8821AE) { 805 if (mac->opmode == NL80211_IFTYPE_AP || 806 mac->opmode == NL80211_IFTYPE_ADHOC || 807 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 808 if (!(sta->vht_cap.vht_supported)) 809 return; 810 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 811 if (!mac->bw_80 || 812 !(sta->vht_cap.vht_supported)) 813 return; 814 } 815 if (tcb_desc->hw_rate <= 816 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]) 817 return; 818 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80; 819 } 820 } 821 822 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw, 823 struct ieee80211_sta *sta) 824 { 825 struct rtl_priv *rtlpriv = rtl_priv(hw); 826 struct rtl_phy *rtlphy = &(rtlpriv->phy); 827 u8 hw_rate; 828 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map); 829 830 if ((get_rf_type(rtlphy) == RF_2T2R) && 831 (tx_mcs_map & 0x000c) != 0x000c) { 832 if ((tx_mcs_map & 0x000c) >> 2 == 833 IEEE80211_VHT_MCS_SUPPORT_0_7) 834 hw_rate = 835 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7]; 836 else if ((tx_mcs_map & 0x000c) >> 2 == 837 IEEE80211_VHT_MCS_SUPPORT_0_8) 838 hw_rate = 839 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 840 else 841 hw_rate = 842 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 843 } else { 844 if ((tx_mcs_map & 0x0003) == 845 IEEE80211_VHT_MCS_SUPPORT_0_7) 846 hw_rate = 847 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7]; 848 else if ((tx_mcs_map & 0x0003) == 849 IEEE80211_VHT_MCS_SUPPORT_0_8) 850 hw_rate = 851 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 852 else 853 hw_rate = 854 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 855 } 856 857 return hw_rate; 858 } 859 860 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw, 861 struct ieee80211_sta *sta) 862 { 863 struct rtl_priv *rtlpriv = rtl_priv(hw); 864 struct rtl_phy *rtlphy = &rtlpriv->phy; 865 u8 hw_rate; 866 867 if ((get_rf_type(rtlphy) == RF_2T2R) && 868 (sta->ht_cap.mcs.rx_mask[1] != 0)) 869 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; 870 else 871 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; 872 873 return hw_rate; 874 } 875 876 /* mac80211's rate_idx is like this: 877 * 878 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ 879 * 880 * B/G rate: 881 * (rx_status->flag & RX_FLAG_HT) = 0, 882 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11, 883 * 884 * N rate: 885 * (rx_status->flag & RX_FLAG_HT) = 1, 886 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 887 * 888 * 5G band:rx_status->band == NL80211_BAND_5GHZ 889 * A rate: 890 * (rx_status->flag & RX_FLAG_HT) = 0, 891 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7, 892 * 893 * N rate: 894 * (rx_status->flag & RX_FLAG_HT) = 1, 895 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 896 * 897 * VHT rates: 898 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9 899 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9 900 */ 901 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht, 902 u8 desc_rate) 903 { 904 int rate_idx; 905 906 if (isvht) { 907 switch (desc_rate) { 908 case DESC_RATEVHT1SS_MCS0: 909 rate_idx = 0; 910 break; 911 case DESC_RATEVHT1SS_MCS1: 912 rate_idx = 1; 913 break; 914 case DESC_RATEVHT1SS_MCS2: 915 rate_idx = 2; 916 break; 917 case DESC_RATEVHT1SS_MCS3: 918 rate_idx = 3; 919 break; 920 case DESC_RATEVHT1SS_MCS4: 921 rate_idx = 4; 922 break; 923 case DESC_RATEVHT1SS_MCS5: 924 rate_idx = 5; 925 break; 926 case DESC_RATEVHT1SS_MCS6: 927 rate_idx = 6; 928 break; 929 case DESC_RATEVHT1SS_MCS7: 930 rate_idx = 7; 931 break; 932 case DESC_RATEVHT1SS_MCS8: 933 rate_idx = 8; 934 break; 935 case DESC_RATEVHT1SS_MCS9: 936 rate_idx = 9; 937 break; 938 case DESC_RATEVHT2SS_MCS0: 939 rate_idx = 0; 940 break; 941 case DESC_RATEVHT2SS_MCS1: 942 rate_idx = 1; 943 break; 944 case DESC_RATEVHT2SS_MCS2: 945 rate_idx = 2; 946 break; 947 case DESC_RATEVHT2SS_MCS3: 948 rate_idx = 3; 949 break; 950 case DESC_RATEVHT2SS_MCS4: 951 rate_idx = 4; 952 break; 953 case DESC_RATEVHT2SS_MCS5: 954 rate_idx = 5; 955 break; 956 case DESC_RATEVHT2SS_MCS6: 957 rate_idx = 6; 958 break; 959 case DESC_RATEVHT2SS_MCS7: 960 rate_idx = 7; 961 break; 962 case DESC_RATEVHT2SS_MCS8: 963 rate_idx = 8; 964 break; 965 case DESC_RATEVHT2SS_MCS9: 966 rate_idx = 9; 967 break; 968 default: 969 rate_idx = 0; 970 break; 971 } 972 return rate_idx; 973 } 974 if (false == isht) { 975 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) { 976 switch (desc_rate) { 977 case DESC_RATE1M: 978 rate_idx = 0; 979 break; 980 case DESC_RATE2M: 981 rate_idx = 1; 982 break; 983 case DESC_RATE5_5M: 984 rate_idx = 2; 985 break; 986 case DESC_RATE11M: 987 rate_idx = 3; 988 break; 989 case DESC_RATE6M: 990 rate_idx = 4; 991 break; 992 case DESC_RATE9M: 993 rate_idx = 5; 994 break; 995 case DESC_RATE12M: 996 rate_idx = 6; 997 break; 998 case DESC_RATE18M: 999 rate_idx = 7; 1000 break; 1001 case DESC_RATE24M: 1002 rate_idx = 8; 1003 break; 1004 case DESC_RATE36M: 1005 rate_idx = 9; 1006 break; 1007 case DESC_RATE48M: 1008 rate_idx = 10; 1009 break; 1010 case DESC_RATE54M: 1011 rate_idx = 11; 1012 break; 1013 default: 1014 rate_idx = 0; 1015 break; 1016 } 1017 } else { 1018 switch (desc_rate) { 1019 case DESC_RATE6M: 1020 rate_idx = 0; 1021 break; 1022 case DESC_RATE9M: 1023 rate_idx = 1; 1024 break; 1025 case DESC_RATE12M: 1026 rate_idx = 2; 1027 break; 1028 case DESC_RATE18M: 1029 rate_idx = 3; 1030 break; 1031 case DESC_RATE24M: 1032 rate_idx = 4; 1033 break; 1034 case DESC_RATE36M: 1035 rate_idx = 5; 1036 break; 1037 case DESC_RATE48M: 1038 rate_idx = 6; 1039 break; 1040 case DESC_RATE54M: 1041 rate_idx = 7; 1042 break; 1043 default: 1044 rate_idx = 0; 1045 break; 1046 } 1047 } 1048 } else { 1049 switch (desc_rate) { 1050 case DESC_RATEMCS0: 1051 rate_idx = 0; 1052 break; 1053 case DESC_RATEMCS1: 1054 rate_idx = 1; 1055 break; 1056 case DESC_RATEMCS2: 1057 rate_idx = 2; 1058 break; 1059 case DESC_RATEMCS3: 1060 rate_idx = 3; 1061 break; 1062 case DESC_RATEMCS4: 1063 rate_idx = 4; 1064 break; 1065 case DESC_RATEMCS5: 1066 rate_idx = 5; 1067 break; 1068 case DESC_RATEMCS6: 1069 rate_idx = 6; 1070 break; 1071 case DESC_RATEMCS7: 1072 rate_idx = 7; 1073 break; 1074 case DESC_RATEMCS8: 1075 rate_idx = 8; 1076 break; 1077 case DESC_RATEMCS9: 1078 rate_idx = 9; 1079 break; 1080 case DESC_RATEMCS10: 1081 rate_idx = 10; 1082 break; 1083 case DESC_RATEMCS11: 1084 rate_idx = 11; 1085 break; 1086 case DESC_RATEMCS12: 1087 rate_idx = 12; 1088 break; 1089 case DESC_RATEMCS13: 1090 rate_idx = 13; 1091 break; 1092 case DESC_RATEMCS14: 1093 rate_idx = 14; 1094 break; 1095 case DESC_RATEMCS15: 1096 rate_idx = 15; 1097 break; 1098 default: 1099 rate_idx = 0; 1100 break; 1101 } 1102 } 1103 return rate_idx; 1104 } 1105 EXPORT_SYMBOL(rtlwifi_rate_mapping); 1106 1107 void rtl_get_tcb_desc(struct ieee80211_hw *hw, 1108 struct ieee80211_tx_info *info, 1109 struct ieee80211_sta *sta, 1110 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) 1111 { 1112 struct rtl_priv *rtlpriv = rtl_priv(hw); 1113 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 1114 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1115 struct ieee80211_rate *txrate; 1116 __le16 fc = rtl_get_fc(skb); 1117 1118 txrate = ieee80211_get_tx_rate(hw, info); 1119 if (txrate) 1120 tcb_desc->hw_rate = txrate->hw_value; 1121 1122 if (rtl_is_tx_report_skb(hw, skb)) 1123 tcb_desc->use_spe_rpt = 1; 1124 1125 if (ieee80211_is_data(fc)) { 1126 /* 1127 *we set data rate INX 0 1128 *in rtl_rc.c if skb is special data or 1129 *mgt which need low data rate. 1130 */ 1131 1132 /* 1133 *So tcb_desc->hw_rate is just used for 1134 *special data and mgt frames 1135 */ 1136 if (info->control.rates[0].idx == 0 || 1137 ieee80211_is_nullfunc(fc)) { 1138 tcb_desc->use_driver_rate = true; 1139 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 1140 1141 tcb_desc->disable_ratefallback = 1; 1142 } else { 1143 /* 1144 *because hw will nerver use hw_rate 1145 *when tcb_desc->use_driver_rate = false 1146 *so we never set highest N rate here, 1147 *and N rate will all be controlled by FW 1148 *when tcb_desc->use_driver_rate = false 1149 */ 1150 if (sta && sta->vht_cap.vht_supported) { 1151 tcb_desc->hw_rate = 1152 _rtl_get_vht_highest_n_rate(hw, sta); 1153 } else { 1154 if (sta && (sta->ht_cap.ht_supported)) { 1155 tcb_desc->hw_rate = 1156 _rtl_get_highest_n_rate(hw, sta); 1157 } else { 1158 if (rtlmac->mode == WIRELESS_MODE_B) { 1159 tcb_desc->hw_rate = 1160 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; 1161 } else { 1162 tcb_desc->hw_rate = 1163 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; 1164 } 1165 } 1166 } 1167 } 1168 1169 if (is_multicast_ether_addr(ieee80211_get_DA(hdr))) 1170 tcb_desc->multicast = 1; 1171 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr))) 1172 tcb_desc->broadcast = 1; 1173 1174 _rtl_txrate_selectmode(hw, sta, tcb_desc); 1175 _rtl_query_bandwidth_mode(hw, sta, tcb_desc); 1176 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); 1177 _rtl_query_shortgi(hw, sta, tcb_desc, info); 1178 _rtl_query_protection_mode(hw, tcb_desc, info); 1179 } else { 1180 tcb_desc->use_driver_rate = true; 1181 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 1182 tcb_desc->disable_ratefallback = 1; 1183 tcb_desc->mac_id = 0; 1184 tcb_desc->packet_bw = false; 1185 } 1186 } 1187 EXPORT_SYMBOL(rtl_get_tcb_desc); 1188 1189 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb) 1190 { 1191 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1192 struct rtl_priv *rtlpriv = rtl_priv(hw); 1193 __le16 fc = rtl_get_fc(skb); 1194 1195 if (rtlpriv->dm.supp_phymode_switch && 1196 mac->link_state < MAC80211_LINKED && 1197 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) { 1198 if (rtlpriv->cfg->ops->chk_switch_dmdp) 1199 rtlpriv->cfg->ops->chk_switch_dmdp(hw); 1200 } 1201 if (ieee80211_is_auth(fc)) { 1202 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); 1203 rtl_ips_nic_on(hw); 1204 1205 mac->link_state = MAC80211_LINKING; 1206 /* Dul mac */ 1207 rtlpriv->phy.need_iqk = true; 1208 1209 } 1210 1211 return true; 1212 } 1213 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc); 1214 1215 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa, 1216 u8 *bssid, u16 tid); 1217 1218 static void process_agg_start(struct ieee80211_hw *hw, 1219 struct ieee80211_hdr *hdr, u16 tid) 1220 { 1221 struct rtl_priv *rtlpriv = rtl_priv(hw); 1222 struct ieee80211_rx_status rx_status = { 0 }; 1223 struct sk_buff *skb_delba = NULL; 1224 1225 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid); 1226 if (skb_delba) { 1227 rx_status.freq = hw->conf.chandef.chan->center_freq; 1228 rx_status.band = hw->conf.chandef.chan->band; 1229 rx_status.flag |= RX_FLAG_DECRYPTED; 1230 rx_status.flag |= RX_FLAG_MACTIME_START; 1231 rx_status.rate_idx = 0; 1232 rx_status.signal = 50 + 10; 1233 memcpy(IEEE80211_SKB_RXCB(skb_delba), 1234 &rx_status, sizeof(rx_status)); 1235 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, 1236 "fake del\n", 1237 skb_delba->data, 1238 skb_delba->len); 1239 ieee80211_rx_irqsafe(hw, skb_delba); 1240 } 1241 } 1242 1243 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 1244 { 1245 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1246 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1247 struct rtl_priv *rtlpriv = rtl_priv(hw); 1248 __le16 fc = rtl_get_fc(skb); 1249 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN)); 1250 u8 category; 1251 1252 if (!ieee80211_is_action(fc)) 1253 return true; 1254 1255 category = *act; 1256 act++; 1257 switch (category) { 1258 case ACT_CAT_BA: 1259 switch (*act) { 1260 case ACT_ADDBAREQ: 1261 if (mac->act_scanning) 1262 return false; 1263 1264 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1265 "%s ACT_ADDBAREQ From :%pM\n", 1266 is_tx ? "Tx" : "Rx", hdr->addr2); 1267 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n", 1268 skb->data, skb->len); 1269 if (!is_tx) { 1270 struct ieee80211_sta *sta = NULL; 1271 struct rtl_sta_info *sta_entry = NULL; 1272 struct rtl_tid_data *tid_data; 1273 struct ieee80211_mgmt *mgmt = (void *)skb->data; 1274 u16 capab = 0, tid = 0; 1275 1276 rcu_read_lock(); 1277 sta = rtl_find_sta(hw, hdr->addr3); 1278 if (sta == NULL) { 1279 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV, 1280 DBG_DMESG, "sta is NULL\n"); 1281 rcu_read_unlock(); 1282 return true; 1283 } 1284 1285 sta_entry = 1286 (struct rtl_sta_info *)sta->drv_priv; 1287 if (!sta_entry) { 1288 rcu_read_unlock(); 1289 return true; 1290 } 1291 capab = 1292 le16_to_cpu(mgmt->u.action.u.addba_req.capab); 1293 tid = (capab & 1294 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; 1295 tid_data = &sta_entry->tids[tid]; 1296 if (tid_data->agg.rx_agg_state == 1297 RTL_RX_AGG_START) 1298 process_agg_start(hw, hdr, tid); 1299 rcu_read_unlock(); 1300 } 1301 break; 1302 case ACT_ADDBARSP: 1303 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1304 "%s ACT_ADDBARSP From :%pM\n", 1305 is_tx ? "Tx" : "Rx", hdr->addr2); 1306 break; 1307 case ACT_DELBA: 1308 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1309 "ACT_ADDBADEL From :%pM\n", hdr->addr2); 1310 break; 1311 } 1312 break; 1313 default: 1314 break; 1315 } 1316 1317 return true; 1318 } 1319 EXPORT_SYMBOL_GPL(rtl_action_proc); 1320 1321 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc, 1322 int type) 1323 { 1324 struct ieee80211_hw *hw = rtlpriv->hw; 1325 1326 rtlpriv->ra.is_special_data = true; 1327 if (rtlpriv->cfg->ops->get_btc_status()) 1328 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify( 1329 rtlpriv, type); 1330 rtl_lps_leave(hw); 1331 ppsc->last_delaylps_stamp_jiffies = jiffies; 1332 } 1333 1334 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw, 1335 struct sk_buff *skb, bool is_enc) 1336 { 1337 struct rtl_priv *rtlpriv = rtl_priv(hw); 1338 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); 1339 u8 encrypt_header_len = 0; 1340 u8 offset; 1341 1342 switch (rtlpriv->sec.pairwise_enc_algorithm) { 1343 case WEP40_ENCRYPTION: 1344 case WEP104_ENCRYPTION: 1345 encrypt_header_len = 4;/*WEP_IV_LEN*/ 1346 break; 1347 case TKIP_ENCRYPTION: 1348 encrypt_header_len = 8;/*TKIP_IV_LEN*/ 1349 break; 1350 case AESCCMP_ENCRYPTION: 1351 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/ 1352 break; 1353 default: 1354 break; 1355 } 1356 1357 offset = mac_hdr_len + SNAP_SIZE; 1358 if (is_enc) 1359 offset += encrypt_header_len; 1360 1361 return skb->data + offset; 1362 } 1363 1364 /*should call before software enc*/ 1365 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx, 1366 bool is_enc) 1367 { 1368 struct rtl_priv *rtlpriv = rtl_priv(hw); 1369 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1370 __le16 fc = rtl_get_fc(skb); 1371 u16 ether_type; 1372 const u8 *ether_type_ptr; 1373 const struct iphdr *ip; 1374 1375 if (!ieee80211_is_data(fc)) 1376 goto end; 1377 1378 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc); 1379 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1380 1381 if (ETH_P_IP == ether_type) { 1382 ip = (struct iphdr *)((u8 *)ether_type_ptr + 1383 PROTOC_TYPE_SIZE); 1384 if (IPPROTO_UDP == ip->protocol) { 1385 struct udphdr *udp = (struct udphdr *)((u8 *)ip + 1386 (ip->ihl << 2)); 1387 if (((((u8 *)udp)[1] == 68) && 1388 (((u8 *)udp)[3] == 67)) || 1389 ((((u8 *)udp)[1] == 67) && 1390 (((u8 *)udp)[3] == 68))) { 1391 /* 68 : UDP BOOTP client 1392 * 67 : UDP BOOTP server 1393 */ 1394 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), 1395 DBG_DMESG, "dhcp %s !!\n", 1396 (is_tx) ? "Tx" : "Rx"); 1397 1398 if (is_tx) 1399 setup_special_tx(rtlpriv, ppsc, 1400 PACKET_DHCP); 1401 1402 return true; 1403 } 1404 } 1405 } else if (ETH_P_ARP == ether_type) { 1406 if (is_tx) 1407 setup_special_tx(rtlpriv, ppsc, PACKET_ARP); 1408 1409 return true; 1410 } else if (ETH_P_PAE == ether_type) { 1411 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1412 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"); 1413 1414 if (is_tx) { 1415 rtlpriv->ra.is_special_data = true; 1416 rtl_lps_leave(hw); 1417 ppsc->last_delaylps_stamp_jiffies = jiffies; 1418 1419 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL); 1420 } 1421 1422 return true; 1423 } else if (ETH_P_IPV6 == ether_type) { 1424 /* TODO: Handle any IPv6 cases that need special handling. 1425 * For now, always return false 1426 */ 1427 goto end; 1428 } 1429 1430 end: 1431 rtlpriv->ra.is_special_data = false; 1432 return false; 1433 } 1434 EXPORT_SYMBOL_GPL(rtl_is_special_data); 1435 1436 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb) 1437 { 1438 u16 ether_type; 1439 const u8 *ether_type_ptr; 1440 1441 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true); 1442 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1443 1444 /* EAPOL */ 1445 if (ether_type == ETH_P_PAE) 1446 return true; 1447 1448 return false; 1449 } 1450 1451 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw) 1452 { 1453 struct rtl_priv *rtlpriv = rtl_priv(hw); 1454 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1455 u16 sn; 1456 1457 sn = atomic_inc_return(&tx_report->sn) & 0x0FFF; 1458 1459 tx_report->last_sent_sn = sn; 1460 tx_report->last_sent_time = jiffies; 1461 1462 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1463 "Send TX-Report sn=0x%X\n", sn); 1464 1465 return sn; 1466 } 1467 1468 void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc, 1469 struct ieee80211_hw *hw) 1470 { 1471 if (ptcb_desc->use_spe_rpt) { 1472 u16 sn = rtl_get_tx_report_sn(hw); 1473 1474 SET_TX_DESC_SPE_RPT(pdesc, 1); 1475 SET_TX_DESC_SW_DEFINE(pdesc, sn); 1476 } 1477 } 1478 EXPORT_SYMBOL_GPL(rtl_get_tx_report); 1479 1480 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len) 1481 { 1482 struct rtl_priv *rtlpriv = rtl_priv(hw); 1483 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1484 u16 sn; 1485 1486 sn = ((tmp_buf[7] & 0x0F) << 8) | tmp_buf[6]; 1487 1488 tx_report->last_recv_sn = sn; 1489 1490 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1491 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n", 1492 tmp_buf[0], sn, tmp_buf[2]); 1493 } 1494 EXPORT_SYMBOL_GPL(rtl_tx_report_handler); 1495 1496 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw) 1497 { 1498 struct rtl_priv *rtlpriv = rtl_priv(hw); 1499 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1500 1501 if (tx_report->last_sent_sn == tx_report->last_recv_sn) 1502 return true; 1503 1504 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) { 1505 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING, 1506 "Check TX-Report timeout!!\n"); 1507 return true; /* 3 sec. (timeout) seen as acked */ 1508 } 1509 1510 return false; 1511 } 1512 1513 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms) 1514 { 1515 struct rtl_priv *rtlpriv = rtl_priv(hw); 1516 int i; 1517 1518 for (i = 0; i < wait_ms; i++) { 1519 if (rtl_check_tx_report_acked(hw)) 1520 break; 1521 usleep_range(1000, 2000); 1522 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 1523 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms); 1524 } 1525 } 1526 /********************************************************* 1527 * 1528 * functions called by core.c 1529 * 1530 *********************************************************/ 1531 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1532 struct ieee80211_sta *sta, u16 tid, u16 *ssn) 1533 { 1534 struct rtl_priv *rtlpriv = rtl_priv(hw); 1535 struct rtl_tid_data *tid_data; 1536 struct rtl_sta_info *sta_entry = NULL; 1537 1538 if (sta == NULL) 1539 return -EINVAL; 1540 1541 if (unlikely(tid >= MAX_TID_COUNT)) 1542 return -EINVAL; 1543 1544 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1545 if (!sta_entry) 1546 return -ENXIO; 1547 tid_data = &sta_entry->tids[tid]; 1548 1549 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1550 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1551 tid_data->seq_number); 1552 1553 *ssn = tid_data->seq_number; 1554 tid_data->agg.agg_state = RTL_AGG_START; 1555 1556 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1557 return 0; 1558 } 1559 1560 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1561 struct ieee80211_sta *sta, u16 tid) 1562 { 1563 struct rtl_priv *rtlpriv = rtl_priv(hw); 1564 struct rtl_tid_data *tid_data; 1565 struct rtl_sta_info *sta_entry = NULL; 1566 1567 if (sta == NULL) 1568 return -EINVAL; 1569 1570 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1571 "on ra = %pM tid = %d\n", sta->addr, tid); 1572 1573 if (unlikely(tid >= MAX_TID_COUNT)) 1574 return -EINVAL; 1575 1576 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1577 tid_data = &sta_entry->tids[tid]; 1578 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; 1579 1580 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1581 return 0; 1582 } 1583 1584 int rtl_rx_agg_start(struct ieee80211_hw *hw, 1585 struct ieee80211_sta *sta, u16 tid) 1586 { 1587 struct rtl_priv *rtlpriv = rtl_priv(hw); 1588 struct rtl_tid_data *tid_data; 1589 struct rtl_sta_info *sta_entry = NULL; 1590 u8 reject_agg; 1591 1592 if (sta == NULL) 1593 return -EINVAL; 1594 1595 if (unlikely(tid >= MAX_TID_COUNT)) 1596 return -EINVAL; 1597 1598 if (rtlpriv->cfg->ops->get_btc_status()) { 1599 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv, 1600 &reject_agg, 1601 NULL, NULL); 1602 if (reject_agg) 1603 return -EINVAL; 1604 } 1605 1606 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1607 if (!sta_entry) 1608 return -ENXIO; 1609 tid_data = &sta_entry->tids[tid]; 1610 1611 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG, 1612 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1613 tid_data->seq_number); 1614 1615 tid_data->agg.rx_agg_state = RTL_RX_AGG_START; 1616 return 0; 1617 } 1618 1619 int rtl_rx_agg_stop(struct ieee80211_hw *hw, 1620 struct ieee80211_sta *sta, u16 tid) 1621 { 1622 struct rtl_priv *rtlpriv = rtl_priv(hw); 1623 struct rtl_sta_info *sta_entry = NULL; 1624 1625 if (sta == NULL) 1626 return -EINVAL; 1627 1628 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1629 "on ra = %pM tid = %d\n", sta->addr, tid); 1630 1631 if (unlikely(tid >= MAX_TID_COUNT)) 1632 return -EINVAL; 1633 1634 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1635 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP; 1636 1637 return 0; 1638 } 1639 int rtl_tx_agg_oper(struct ieee80211_hw *hw, 1640 struct ieee80211_sta *sta, u16 tid) 1641 { 1642 struct rtl_priv *rtlpriv = rtl_priv(hw); 1643 struct rtl_sta_info *sta_entry = NULL; 1644 1645 if (sta == NULL) 1646 return -EINVAL; 1647 1648 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1649 "on ra = %pM tid = %d\n", sta->addr, tid); 1650 1651 if (unlikely(tid >= MAX_TID_COUNT)) 1652 return -EINVAL; 1653 1654 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1655 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; 1656 1657 return 0; 1658 } 1659 1660 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv) 1661 { 1662 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops; 1663 u8 reject_agg, ctrl_agg_size = 0, agg_size; 1664 1665 if (rtlpriv->cfg->ops->get_btc_status()) 1666 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg, 1667 &ctrl_agg_size, &agg_size); 1668 1669 RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG, 1670 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d", 1671 reject_agg, ctrl_agg_size, agg_size); 1672 1673 rtlpriv->hw->max_rx_aggregation_subframes = 1674 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF); 1675 } 1676 EXPORT_SYMBOL(rtl_rx_ampdu_apply); 1677 1678 /********************************************************* 1679 * 1680 * wq & timer callback functions 1681 * 1682 *********************************************************/ 1683 /* this function is used for roaming */ 1684 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb) 1685 { 1686 struct rtl_priv *rtlpriv = rtl_priv(hw); 1687 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 1688 1689 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION) 1690 return; 1691 1692 if (rtlpriv->mac80211.link_state < MAC80211_LINKED) 1693 return; 1694 1695 /* check if this really is a beacon */ 1696 if (!ieee80211_is_beacon(hdr->frame_control) && 1697 !ieee80211_is_probe_resp(hdr->frame_control)) 1698 return; 1699 1700 /* min. beacon length + FCS_LEN */ 1701 if (skb->len <= 40 + FCS_LEN) 1702 return; 1703 1704 /* and only beacons from the associated BSSID, please */ 1705 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid)) 1706 return; 1707 1708 rtlpriv->link_info.bcn_rx_inperiod++; 1709 } 1710 EXPORT_SYMBOL_GPL(rtl_beacon_statistic); 1711 1712 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw) 1713 { 1714 struct rtl_priv *rtlpriv = rtl_priv(hw); 1715 struct rtl_bssid_entry *entry, *next; 1716 1717 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1718 list_del(&entry->list); 1719 kfree(entry); 1720 rtlpriv->scan_list.num--; 1721 } 1722 } 1723 1724 void rtl_scan_list_expire(struct ieee80211_hw *hw) 1725 { 1726 struct rtl_priv *rtlpriv = rtl_priv(hw); 1727 struct rtl_bssid_entry *entry, *next; 1728 unsigned long flags; 1729 1730 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1731 1732 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1733 /* 180 seconds */ 1734 if (jiffies_to_msecs(jiffies - entry->age) < 180000) 1735 continue; 1736 1737 list_del(&entry->list); 1738 kfree(entry); 1739 rtlpriv->scan_list.num--; 1740 1741 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1742 "BSSID=%pM is expire in scan list (total=%d)\n", 1743 entry->bssid, rtlpriv->scan_list.num); 1744 } 1745 1746 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 1747 1748 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num; 1749 } 1750 1751 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb) 1752 { 1753 struct rtl_priv *rtlpriv = rtl_priv(hw); 1754 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 1755 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1756 unsigned long flags; 1757 1758 struct rtl_bssid_entry *entry; 1759 bool entry_found = false; 1760 1761 /* check if it is scanning */ 1762 if (!mac->act_scanning) 1763 return; 1764 1765 /* check if this really is a beacon */ 1766 if (!ieee80211_is_beacon(hdr->frame_control) && 1767 !ieee80211_is_probe_resp(hdr->frame_control)) 1768 return; 1769 1770 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1771 1772 list_for_each_entry(entry, &rtlpriv->scan_list.list, list) { 1773 if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) { 1774 list_del_init(&entry->list); 1775 entry_found = true; 1776 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1777 "Update BSSID=%pM to scan list (total=%d)\n", 1778 hdr->addr3, rtlpriv->scan_list.num); 1779 break; 1780 } 1781 } 1782 1783 if (!entry_found) { 1784 entry = kmalloc(sizeof(*entry), GFP_ATOMIC); 1785 1786 if (!entry) 1787 goto label_err; 1788 1789 memcpy(entry->bssid, hdr->addr3, ETH_ALEN); 1790 rtlpriv->scan_list.num++; 1791 1792 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1793 "Add BSSID=%pM to scan list (total=%d)\n", 1794 hdr->addr3, rtlpriv->scan_list.num); 1795 } 1796 1797 entry->age = jiffies; 1798 1799 list_add_tail(&entry->list, &rtlpriv->scan_list.list); 1800 1801 label_err: 1802 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 1803 } 1804 EXPORT_SYMBOL(rtl_collect_scan_list); 1805 1806 void rtl_watchdog_wq_callback(void *data) 1807 { 1808 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 1809 struct rtl_works, 1810 watchdog_wq); 1811 struct ieee80211_hw *hw = rtlworks->hw; 1812 struct rtl_priv *rtlpriv = rtl_priv(hw); 1813 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1814 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1815 bool busytraffic = false; 1816 bool tx_busy_traffic = false; 1817 bool rx_busy_traffic = false; 1818 bool higher_busytraffic = false; 1819 bool higher_busyrxtraffic = false; 1820 u8 idx, tid; 1821 u32 rx_cnt_inp4eriod = 0; 1822 u32 tx_cnt_inp4eriod = 0; 1823 u32 aver_rx_cnt_inperiod = 0; 1824 u32 aver_tx_cnt_inperiod = 0; 1825 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; 1826 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; 1827 1828 if (is_hal_stop(rtlhal)) 1829 return; 1830 1831 /* <1> Determine if action frame is allowed */ 1832 if (mac->link_state > MAC80211_NOLINK) { 1833 if (mac->cnt_after_linked < 20) 1834 mac->cnt_after_linked++; 1835 } else { 1836 mac->cnt_after_linked = 0; 1837 } 1838 1839 /* <2> to check if traffic busy, if 1840 * busytraffic we don't change channel 1841 */ 1842 if (mac->link_state >= MAC80211_LINKED) { 1843 1844 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ 1845 for (idx = 0; idx <= 2; idx++) { 1846 rtlpriv->link_info.num_rx_in4period[idx] = 1847 rtlpriv->link_info.num_rx_in4period[idx + 1]; 1848 rtlpriv->link_info.num_tx_in4period[idx] = 1849 rtlpriv->link_info.num_tx_in4period[idx + 1]; 1850 } 1851 rtlpriv->link_info.num_rx_in4period[3] = 1852 rtlpriv->link_info.num_rx_inperiod; 1853 rtlpriv->link_info.num_tx_in4period[3] = 1854 rtlpriv->link_info.num_tx_inperiod; 1855 for (idx = 0; idx <= 3; idx++) { 1856 rx_cnt_inp4eriod += 1857 rtlpriv->link_info.num_rx_in4period[idx]; 1858 tx_cnt_inp4eriod += 1859 rtlpriv->link_info.num_tx_in4period[idx]; 1860 } 1861 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; 1862 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; 1863 1864 /* (2) check traffic busy */ 1865 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) { 1866 busytraffic = true; 1867 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod) 1868 rx_busy_traffic = true; 1869 else 1870 tx_busy_traffic = false; 1871 } 1872 1873 /* Higher Tx/Rx data. */ 1874 if (aver_rx_cnt_inperiod > 4000 || 1875 aver_tx_cnt_inperiod > 4000) { 1876 higher_busytraffic = true; 1877 1878 /* Extremely high Rx data. */ 1879 if (aver_rx_cnt_inperiod > 5000) 1880 higher_busyrxtraffic = true; 1881 } 1882 1883 /* check every tid's tx traffic */ 1884 for (tid = 0; tid <= 7; tid++) { 1885 for (idx = 0; idx <= 2; idx++) 1886 rtlpriv->link_info.tidtx_in4period[tid][idx] = 1887 rtlpriv->link_info.tidtx_in4period[tid] 1888 [idx + 1]; 1889 rtlpriv->link_info.tidtx_in4period[tid][3] = 1890 rtlpriv->link_info.tidtx_inperiod[tid]; 1891 1892 for (idx = 0; idx <= 3; idx++) 1893 tidtx_inp4eriod[tid] += 1894 rtlpriv->link_info.tidtx_in4period[tid][idx]; 1895 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; 1896 if (aver_tidtx_inperiod[tid] > 5000) 1897 rtlpriv->link_info.higher_busytxtraffic[tid] = 1898 true; 1899 else 1900 rtlpriv->link_info.higher_busytxtraffic[tid] = 1901 false; 1902 } 1903 1904 /* PS is controlled by coex. */ 1905 if (rtlpriv->cfg->ops->get_btc_status() && 1906 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv)) 1907 goto label_lps_done; 1908 1909 if (((rtlpriv->link_info.num_rx_inperiod + 1910 rtlpriv->link_info.num_tx_inperiod) > 8) || 1911 (rtlpriv->link_info.num_rx_inperiod > 2)) 1912 rtl_lps_leave(hw); 1913 else 1914 rtl_lps_enter(hw); 1915 1916 label_lps_done: 1917 ; 1918 } 1919 1920 rtlpriv->link_info.num_rx_inperiod = 0; 1921 rtlpriv->link_info.num_tx_inperiod = 0; 1922 for (tid = 0; tid <= 7; tid++) 1923 rtlpriv->link_info.tidtx_inperiod[tid] = 0; 1924 1925 rtlpriv->link_info.busytraffic = busytraffic; 1926 rtlpriv->link_info.higher_busytraffic = higher_busytraffic; 1927 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic; 1928 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic; 1929 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; 1930 1931 /* <3> DM */ 1932 if (!rtlpriv->cfg->mod_params->disable_watchdog) 1933 rtlpriv->cfg->ops->dm_watchdog(hw); 1934 1935 /* <4> roaming */ 1936 if (mac->link_state == MAC80211_LINKED && 1937 mac->opmode == NL80211_IFTYPE_STATION) { 1938 if ((rtlpriv->link_info.bcn_rx_inperiod + 1939 rtlpriv->link_info.num_rx_inperiod) == 0) { 1940 rtlpriv->link_info.roam_times++; 1941 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG, 1942 "AP off for %d s\n", 1943 (rtlpriv->link_info.roam_times * 2)); 1944 1945 /* if we can't recv beacon for 10s, 1946 * we should reconnect this AP 1947 */ 1948 if (rtlpriv->link_info.roam_times >= 5) { 1949 pr_err("AP off, try to reconnect now\n"); 1950 rtlpriv->link_info.roam_times = 0; 1951 ieee80211_connection_loss( 1952 rtlpriv->mac80211.vif); 1953 } 1954 } else { 1955 rtlpriv->link_info.roam_times = 0; 1956 } 1957 } 1958 1959 if (rtlpriv->cfg->ops->get_btc_status()) 1960 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv); 1961 1962 rtlpriv->link_info.bcn_rx_inperiod = 0; 1963 1964 /* <6> scan list */ 1965 rtl_scan_list_expire(hw); 1966 } 1967 1968 void rtl_watch_dog_timer_callback(unsigned long data) 1969 { 1970 struct ieee80211_hw *hw = (struct ieee80211_hw *)data; 1971 struct rtl_priv *rtlpriv = rtl_priv(hw); 1972 1973 queue_delayed_work(rtlpriv->works.rtl_wq, 1974 &rtlpriv->works.watchdog_wq, 0); 1975 1976 mod_timer(&rtlpriv->works.watchdog_timer, 1977 jiffies + MSECS(RTL_WATCH_DOG_TIME)); 1978 } 1979 void rtl_fwevt_wq_callback(void *data) 1980 { 1981 struct rtl_works *rtlworks = 1982 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq); 1983 struct ieee80211_hw *hw = rtlworks->hw; 1984 struct rtl_priv *rtlpriv = rtl_priv(hw); 1985 1986 rtlpriv->cfg->ops->c2h_command_handle(hw); 1987 } 1988 1989 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val) 1990 { 1991 struct rtl_priv *rtlpriv = rtl_priv(hw); 1992 unsigned long flags; 1993 struct rtl_c2hcmd *c2hcmd; 1994 1995 c2hcmd = kmalloc(sizeof(*c2hcmd), 1996 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 1997 1998 if (!c2hcmd) 1999 goto label_err; 2000 2001 c2hcmd->val = kmalloc(len, 2002 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 2003 2004 if (!c2hcmd->val) 2005 goto label_err2; 2006 2007 /* fill data */ 2008 c2hcmd->tag = tag; 2009 c2hcmd->len = len; 2010 memcpy(c2hcmd->val, val, len); 2011 2012 /* enqueue */ 2013 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 2014 2015 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list); 2016 2017 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 2018 2019 /* wake up wq */ 2020 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0); 2021 2022 return; 2023 2024 label_err2: 2025 kfree(c2hcmd); 2026 2027 label_err: 2028 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING, 2029 "C2H cmd enqueue fail.\n"); 2030 } 2031 EXPORT_SYMBOL(rtl_c2hcmd_enqueue); 2032 2033 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec) 2034 { 2035 struct rtl_priv *rtlpriv = rtl_priv(hw); 2036 unsigned long flags; 2037 struct rtl_c2hcmd *c2hcmd; 2038 int i; 2039 2040 for (i = 0; i < 200; i++) { 2041 /* dequeue a task */ 2042 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 2043 2044 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list, 2045 struct rtl_c2hcmd, list); 2046 2047 if (c2hcmd) 2048 list_del(&c2hcmd->list); 2049 2050 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 2051 2052 /* do it */ 2053 if (!c2hcmd) 2054 break; 2055 2056 if (rtlpriv->cfg->ops->c2h_content_parsing && exec) 2057 rtlpriv->cfg->ops->c2h_content_parsing(hw, 2058 c2hcmd->tag, c2hcmd->len, c2hcmd->val); 2059 2060 /* free */ 2061 kfree(c2hcmd->val); 2062 2063 kfree(c2hcmd); 2064 } 2065 } 2066 2067 void rtl_c2hcmd_wq_callback(void *data) 2068 { 2069 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 2070 struct rtl_works, 2071 c2hcmd_wq); 2072 struct ieee80211_hw *hw = rtlworks->hw; 2073 2074 rtl_c2hcmd_launcher(hw, 1); 2075 } 2076 2077 void rtl_easy_concurrent_retrytimer_callback(unsigned long data) 2078 { 2079 struct ieee80211_hw *hw = (struct ieee80211_hw *)data; 2080 struct rtl_priv *rtlpriv = rtl_priv(hw); 2081 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv; 2082 2083 if (buddy_priv == NULL) 2084 return; 2085 2086 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw); 2087 } 2088 /********************************************************* 2089 * 2090 * frame process functions 2091 * 2092 *********************************************************/ 2093 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) 2094 { 2095 struct ieee80211_mgmt *mgmt = (void *)data; 2096 u8 *pos, *end; 2097 2098 pos = (u8 *)mgmt->u.beacon.variable; 2099 end = data + len; 2100 while (pos < end) { 2101 if (pos + 2 + pos[1] > end) 2102 return NULL; 2103 2104 if (pos[0] == ie) 2105 return pos; 2106 2107 pos += 2 + pos[1]; 2108 } 2109 return NULL; 2110 } 2111 2112 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ 2113 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ 2114 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, 2115 enum ieee80211_smps_mode smps, 2116 u8 *da, u8 *bssid) 2117 { 2118 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2119 struct sk_buff *skb; 2120 struct ieee80211_mgmt *action_frame; 2121 2122 /* 27 = header + category + action + smps mode */ 2123 skb = dev_alloc_skb(27 + hw->extra_tx_headroom); 2124 if (!skb) 2125 return NULL; 2126 2127 skb_reserve(skb, hw->extra_tx_headroom); 2128 action_frame = skb_put_zero(skb, 27); 2129 memcpy(action_frame->da, da, ETH_ALEN); 2130 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); 2131 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2132 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2133 IEEE80211_STYPE_ACTION); 2134 action_frame->u.action.category = WLAN_CATEGORY_HT; 2135 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; 2136 switch (smps) { 2137 case IEEE80211_SMPS_AUTOMATIC:/* 0 */ 2138 case IEEE80211_SMPS_NUM_MODES:/* 4 */ 2139 WARN_ON(1); 2140 /* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it. 2141 * According to Kernel Code, here is right. 2142 */ 2143 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ 2144 action_frame->u.action.u.ht_smps.smps_control = 2145 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ 2146 break; 2147 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ 2148 action_frame->u.action.u.ht_smps.smps_control = 2149 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ 2150 break; 2151 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ 2152 action_frame->u.action.u.ht_smps.smps_control = 2153 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ 2154 break; 2155 } 2156 2157 return skb; 2158 } 2159 2160 int rtl_send_smps_action(struct ieee80211_hw *hw, 2161 struct ieee80211_sta *sta, 2162 enum ieee80211_smps_mode smps) 2163 { 2164 struct rtl_priv *rtlpriv = rtl_priv(hw); 2165 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2166 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 2167 struct sk_buff *skb = NULL; 2168 struct rtl_tcb_desc tcb_desc; 2169 u8 bssid[ETH_ALEN] = {0}; 2170 2171 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 2172 2173 if (rtlpriv->mac80211.act_scanning) 2174 goto err_free; 2175 2176 if (!sta) 2177 goto err_free; 2178 2179 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON)) 2180 goto err_free; 2181 2182 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status)) 2183 goto err_free; 2184 2185 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) 2186 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN); 2187 else 2188 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN); 2189 2190 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid); 2191 /* this is a type = mgmt * stype = action frame */ 2192 if (skb) { 2193 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 2194 struct rtl_sta_info *sta_entry = 2195 (struct rtl_sta_info *) sta->drv_priv; 2196 sta_entry->mimo_ps = smps; 2197 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); */ 2198 2199 info->control.rates[0].idx = 0; 2200 info->band = hw->conf.chandef.chan->band; 2201 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc); 2202 } 2203 return 1; 2204 2205 err_free: 2206 return 0; 2207 } 2208 EXPORT_SYMBOL(rtl_send_smps_action); 2209 2210 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation) 2211 { 2212 struct rtl_priv *rtlpriv = rtl_priv(hw); 2213 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2214 enum io_type iotype; 2215 2216 if (!is_hal_stop(rtlhal)) { 2217 switch (operation) { 2218 case SCAN_OPT_BACKUP: 2219 iotype = IO_CMD_PAUSE_DM_BY_SCAN; 2220 rtlpriv->cfg->ops->set_hw_reg(hw, 2221 HW_VAR_IO_CMD, 2222 (u8 *)&iotype); 2223 break; 2224 case SCAN_OPT_RESTORE: 2225 iotype = IO_CMD_RESUME_DM_BY_SCAN; 2226 rtlpriv->cfg->ops->set_hw_reg(hw, 2227 HW_VAR_IO_CMD, 2228 (u8 *)&iotype); 2229 break; 2230 default: 2231 pr_err("Unknown Scan Backup operation.\n"); 2232 break; 2233 } 2234 } 2235 } 2236 EXPORT_SYMBOL(rtl_phy_scan_operation_backup); 2237 2238 /* because mac80211 have issues when can receive del ba 2239 * so here we just make a fake del_ba if we receive a ba_req 2240 * but rx_agg was opened to let mac80211 release some ba 2241 * related resources, so please this del_ba for tx 2242 */ 2243 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, 2244 u8 *sa, u8 *bssid, u16 tid) 2245 { 2246 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2247 struct sk_buff *skb; 2248 struct ieee80211_mgmt *action_frame; 2249 u16 params; 2250 2251 /* 27 = header + category + action + smps mode */ 2252 skb = dev_alloc_skb(34 + hw->extra_tx_headroom); 2253 if (!skb) 2254 return NULL; 2255 2256 skb_reserve(skb, hw->extra_tx_headroom); 2257 action_frame = skb_put_zero(skb, 34); 2258 memcpy(action_frame->sa, sa, ETH_ALEN); 2259 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN); 2260 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2261 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2262 IEEE80211_STYPE_ACTION); 2263 action_frame->u.action.category = WLAN_CATEGORY_BACK; 2264 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA; 2265 params = (u16)(1 << 11); /* bit 11 initiator */ 2266 params |= (u16)(tid << 12); /* bit 15:12 TID number */ 2267 2268 action_frame->u.action.u.delba.params = cpu_to_le16(params); 2269 action_frame->u.action.u.delba.reason_code = 2270 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT); 2271 2272 return skb; 2273 } 2274 2275 /********************************************************* 2276 * 2277 * IOT functions 2278 * 2279 *********************************************************/ 2280 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, 2281 struct octet_string vendor_ie) 2282 { 2283 struct rtl_priv *rtlpriv = rtl_priv(hw); 2284 bool matched = false; 2285 static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; 2286 static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; 2287 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; 2288 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; 2289 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; 2290 static u8 racap[] = { 0x00, 0x0c, 0x43 }; 2291 static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; 2292 static u8 marvcap[] = { 0x00, 0x50, 0x43 }; 2293 2294 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || 2295 memcmp(vendor_ie.octet, athcap_2, 3) == 0) { 2296 rtlpriv->mac80211.vendor = PEER_ATH; 2297 matched = true; 2298 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || 2299 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || 2300 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { 2301 rtlpriv->mac80211.vendor = PEER_BROAD; 2302 matched = true; 2303 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { 2304 rtlpriv->mac80211.vendor = PEER_RAL; 2305 matched = true; 2306 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { 2307 rtlpriv->mac80211.vendor = PEER_CISCO; 2308 matched = true; 2309 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { 2310 rtlpriv->mac80211.vendor = PEER_MARV; 2311 matched = true; 2312 } 2313 2314 return matched; 2315 } 2316 2317 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, 2318 unsigned int len) 2319 { 2320 struct ieee80211_mgmt *mgmt = (void *)data; 2321 struct octet_string vendor_ie; 2322 u8 *pos, *end; 2323 2324 pos = (u8 *)mgmt->u.beacon.variable; 2325 end = data + len; 2326 while (pos < end) { 2327 if (pos[0] == 221) { 2328 vendor_ie.length = pos[1]; 2329 vendor_ie.octet = &pos[2]; 2330 if (rtl_chk_vendor_ouisub(hw, vendor_ie)) 2331 return true; 2332 } 2333 2334 if (pos + 2 + pos[1] > end) 2335 return false; 2336 2337 pos += 2 + pos[1]; 2338 } 2339 return false; 2340 } 2341 2342 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) 2343 { 2344 struct rtl_priv *rtlpriv = rtl_priv(hw); 2345 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2346 struct ieee80211_hdr *hdr = (void *)data; 2347 u32 vendor = PEER_UNKNOWN; 2348 2349 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; 2350 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; 2351 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; 2352 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; 2353 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; 2354 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; 2355 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; 2356 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; 2357 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; 2358 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; 2359 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; 2360 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; 2361 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; 2362 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; 2363 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; 2364 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; 2365 2366 if (mac->opmode != NL80211_IFTYPE_STATION) 2367 return; 2368 2369 if (mac->link_state == MAC80211_NOLINK) { 2370 mac->vendor = PEER_UNKNOWN; 2371 return; 2372 } 2373 2374 if (mac->cnt_after_linked > 2) 2375 return; 2376 2377 /* check if this really is a beacon */ 2378 if (!ieee80211_is_beacon(hdr->frame_control)) 2379 return; 2380 2381 /* min. beacon length + FCS_LEN */ 2382 if (len <= 40 + FCS_LEN) 2383 return; 2384 2385 /* and only beacons from the associated BSSID, please */ 2386 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid)) 2387 return; 2388 2389 if (rtl_find_221_ie(hw, data, len)) 2390 vendor = mac->vendor; 2391 2392 if ((memcmp(mac->bssid, ap5_1, 3) == 0) || 2393 (memcmp(mac->bssid, ap5_2, 3) == 0) || 2394 (memcmp(mac->bssid, ap5_3, 3) == 0) || 2395 (memcmp(mac->bssid, ap5_4, 3) == 0) || 2396 (memcmp(mac->bssid, ap5_5, 3) == 0) || 2397 (memcmp(mac->bssid, ap5_6, 3) == 0) || 2398 vendor == PEER_ATH) { 2399 vendor = PEER_ATH; 2400 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); 2401 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || 2402 (memcmp(mac->bssid, ap4_5, 3) == 0) || 2403 (memcmp(mac->bssid, ap4_1, 3) == 0) || 2404 (memcmp(mac->bssid, ap4_2, 3) == 0) || 2405 (memcmp(mac->bssid, ap4_3, 3) == 0) || 2406 vendor == PEER_RAL) { 2407 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); 2408 vendor = PEER_RAL; 2409 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || 2410 vendor == PEER_CISCO) { 2411 vendor = PEER_CISCO; 2412 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); 2413 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || 2414 (memcmp(mac->bssid, ap3_2, 3) == 0) || 2415 (memcmp(mac->bssid, ap3_3, 3) == 0) || 2416 vendor == PEER_BROAD) { 2417 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); 2418 vendor = PEER_BROAD; 2419 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || 2420 vendor == PEER_MARV) { 2421 vendor = PEER_MARV; 2422 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); 2423 } 2424 2425 mac->vendor = vendor; 2426 } 2427 EXPORT_SYMBOL_GPL(rtl_recognize_peer); 2428 2429 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 2430 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 2431 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 2432 MODULE_LICENSE("GPL"); 2433 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); 2434 2435 struct rtl_global_var rtl_global_var = {}; 2436 EXPORT_SYMBOL_GPL(rtl_global_var); 2437 2438 static int __init rtl_core_module_init(void) 2439 { 2440 if (rtl_rate_control_register()) 2441 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n"); 2442 2443 /* init some global vars */ 2444 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list); 2445 spin_lock_init(&rtl_global_var.glb_list_lock); 2446 2447 return 0; 2448 } 2449 2450 static void __exit rtl_core_module_exit(void) 2451 { 2452 /*RC*/ 2453 rtl_rate_control_unregister(); 2454 } 2455 2456 module_init(rtl_core_module_init); 2457 module_exit(rtl_core_module_exit); 2458