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 (!(rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT)) 248 return; 249 250 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE || 251 rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) { 252 u16 mcs_map; 253 254 vht_cap->vht_supported = true; 255 vht_cap->cap = 256 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 257 IEEE80211_VHT_CAP_SHORT_GI_80 | 258 IEEE80211_VHT_CAP_TXSTBC | 259 IEEE80211_VHT_CAP_RXSTBC_1 | 260 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 261 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 262 IEEE80211_VHT_CAP_HTC_VHT | 263 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 264 IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | 265 IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | 266 0; 267 268 mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | 269 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 | 270 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | 271 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | 272 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | 273 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | 274 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | 275 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; 276 277 vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); 278 vht_cap->vht_mcs.rx_highest = 279 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 280 vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); 281 vht_cap->vht_mcs.tx_highest = 282 cpu_to_le16(MAX_BIT_RATE_SHORT_GI_2NSS_80MHZ_MCS9); 283 } else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8821AE) { 284 u16 mcs_map; 285 286 vht_cap->vht_supported = true; 287 vht_cap->cap = 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 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 403 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 404 405 /* swlps or hwlps has been set in diff chip in init_sw_vars */ 406 if (rtlpriv->psc.swctrl_lps) { 407 ieee80211_hw_set(hw, SUPPORTS_PS); 408 ieee80211_hw_set(hw, PS_NULLFUNC_STACK); 409 } 410 if (rtlpriv->psc.fwctrl_lps) { 411 ieee80211_hw_set(hw, SUPPORTS_PS); 412 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 413 } 414 hw->wiphy->interface_modes = 415 BIT(NL80211_IFTYPE_AP) | 416 BIT(NL80211_IFTYPE_STATION) | 417 BIT(NL80211_IFTYPE_ADHOC) | 418 BIT(NL80211_IFTYPE_MESH_POINT) | 419 BIT(NL80211_IFTYPE_P2P_CLIENT) | 420 BIT(NL80211_IFTYPE_P2P_GO); 421 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 422 423 hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 424 425 hw->wiphy->rts_threshold = 2347; 426 427 hw->queues = AC_MAX; 428 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; 429 430 /* TODO: Correct this value for our hw */ 431 hw->max_listen_interval = MAX_LISTEN_INTERVAL; 432 hw->max_rate_tries = MAX_RATE_TRIES; 433 /* hw->max_rates = 1; */ 434 hw->sta_data_size = sizeof(struct rtl_sta_info); 435 436 /* wowlan is not supported by kernel if CONFIG_PM is not defined */ 437 #ifdef CONFIG_PM 438 if (rtlpriv->psc.wo_wlan_mode) { 439 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_MAGIC_PACKET) 440 rtlpriv->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT; 441 if (rtlpriv->psc.wo_wlan_mode & WAKE_ON_PATTERN_MATCH) { 442 rtlpriv->wowlan.n_patterns = 443 MAX_SUPPORT_WOL_PATTERN_NUM; 444 rtlpriv->wowlan.pattern_min_len = MIN_WOL_PATTERN_SIZE; 445 rtlpriv->wowlan.pattern_max_len = MAX_WOL_PATTERN_SIZE; 446 } 447 hw->wiphy->wowlan = &rtlpriv->wowlan; 448 } 449 #endif 450 451 /* <6> mac address */ 452 if (is_valid_ether_addr(rtlefuse->dev_addr)) { 453 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); 454 } else { 455 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; 456 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); 457 SET_IEEE80211_PERM_ADDR(hw, rtlmac1); 458 } 459 } 460 461 static void _rtl_init_deferred_work(struct ieee80211_hw *hw) 462 { 463 struct rtl_priv *rtlpriv = rtl_priv(hw); 464 465 /* <1> timer */ 466 timer_setup(&rtlpriv->works.watchdog_timer, 467 rtl_watch_dog_timer_callback, 0); 468 timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer, 469 rtl_easy_concurrent_retrytimer_callback, 0); 470 /* <2> work queue */ 471 rtlpriv->works.hw = hw; 472 rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); 473 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, 474 (void *)rtl_watchdog_wq_callback); 475 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, 476 (void *)rtl_ips_nic_off_wq_callback); 477 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, 478 (void *)rtl_swlps_wq_callback); 479 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, 480 (void *)rtl_swlps_rfon_wq_callback); 481 INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, 482 (void *)rtl_fwevt_wq_callback); 483 INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, 484 (void *)rtl_c2hcmd_wq_callback); 485 486 } 487 488 void rtl_deinit_deferred_work(struct ieee80211_hw *hw) 489 { 490 struct rtl_priv *rtlpriv = rtl_priv(hw); 491 492 del_timer_sync(&rtlpriv->works.watchdog_timer); 493 494 cancel_delayed_work(&rtlpriv->works.watchdog_wq); 495 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); 496 cancel_delayed_work(&rtlpriv->works.ps_work); 497 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq); 498 cancel_delayed_work(&rtlpriv->works.fwevt_wq); 499 cancel_delayed_work(&rtlpriv->works.c2hcmd_wq); 500 } 501 EXPORT_SYMBOL_GPL(rtl_deinit_deferred_work); 502 503 void rtl_init_rfkill(struct ieee80211_hw *hw) 504 { 505 struct rtl_priv *rtlpriv = rtl_priv(hw); 506 507 bool radio_state; 508 bool blocked; 509 u8 valid = 0; 510 511 /*set init state to on */ 512 rtlpriv->rfkill.rfkill_state = true; 513 wiphy_rfkill_set_hw_state(hw->wiphy, 0); 514 515 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); 516 517 if (valid) { 518 pr_info("rtlwifi: wireless switch is %s\n", 519 rtlpriv->rfkill.rfkill_state ? "on" : "off"); 520 521 rtlpriv->rfkill.rfkill_state = radio_state; 522 523 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1; 524 wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 525 } 526 527 wiphy_rfkill_start_polling(hw->wiphy); 528 } 529 EXPORT_SYMBOL(rtl_init_rfkill); 530 531 void rtl_deinit_rfkill(struct ieee80211_hw *hw) 532 { 533 wiphy_rfkill_stop_polling(hw->wiphy); 534 } 535 EXPORT_SYMBOL_GPL(rtl_deinit_rfkill); 536 537 int rtl_init_core(struct ieee80211_hw *hw) 538 { 539 struct rtl_priv *rtlpriv = rtl_priv(hw); 540 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 541 542 /* <1> init mac80211 */ 543 _rtl_init_mac80211(hw); 544 rtlmac->hw = hw; 545 546 /* <2> rate control register */ 547 hw->rate_control_algorithm = "rtl_rc"; 548 549 /* 550 * <3> init CRDA must come after init 551 * mac80211 hw in _rtl_init_mac80211. 552 */ 553 if (rtl_regd_init(hw, rtl_reg_notifier)) { 554 pr_err("REGD init failed\n"); 555 return 1; 556 } 557 558 /* <4> locks */ 559 mutex_init(&rtlpriv->locks.conf_mutex); 560 mutex_init(&rtlpriv->locks.ips_mutex); 561 mutex_init(&rtlpriv->locks.lps_mutex); 562 spin_lock_init(&rtlpriv->locks.irq_th_lock); 563 spin_lock_init(&rtlpriv->locks.h2c_lock); 564 spin_lock_init(&rtlpriv->locks.rf_ps_lock); 565 spin_lock_init(&rtlpriv->locks.rf_lock); 566 spin_lock_init(&rtlpriv->locks.waitq_lock); 567 spin_lock_init(&rtlpriv->locks.entry_list_lock); 568 spin_lock_init(&rtlpriv->locks.c2hcmd_lock); 569 spin_lock_init(&rtlpriv->locks.scan_list_lock); 570 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); 571 spin_lock_init(&rtlpriv->locks.fw_ps_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 u8 rtl_mrate_idx_to_arfr_id(struct ieee80211_hw *hw, u8 rate_index, 706 enum wireless_mode wirelessmode) 707 { 708 struct rtl_priv *rtlpriv = rtl_priv(hw); 709 struct rtl_phy *rtlphy = &rtlpriv->phy; 710 u8 ret = 0; 711 712 switch (rate_index) { 713 case RATR_INX_WIRELESS_NGB: 714 if (rtlphy->rf_type == RF_1T1R) 715 ret = RATEID_IDX_BGN_40M_1SS; 716 else 717 ret = RATEID_IDX_BGN_40M_2SS; 718 ; break; 719 case RATR_INX_WIRELESS_N: 720 case RATR_INX_WIRELESS_NG: 721 if (rtlphy->rf_type == RF_1T1R) 722 ret = RATEID_IDX_GN_N1SS; 723 else 724 ret = RATEID_IDX_GN_N2SS; 725 ; break; 726 case RATR_INX_WIRELESS_NB: 727 if (rtlphy->rf_type == RF_1T1R) 728 ret = RATEID_IDX_BGN_20M_1SS_BN; 729 else 730 ret = RATEID_IDX_BGN_20M_2SS_BN; 731 ; break; 732 case RATR_INX_WIRELESS_GB: 733 ret = RATEID_IDX_BG; 734 break; 735 case RATR_INX_WIRELESS_G: 736 ret = RATEID_IDX_G; 737 break; 738 case RATR_INX_WIRELESS_B: 739 ret = RATEID_IDX_B; 740 break; 741 case RATR_INX_WIRELESS_MC: 742 if (wirelessmode == WIRELESS_MODE_B || 743 wirelessmode == WIRELESS_MODE_G || 744 wirelessmode == WIRELESS_MODE_N_24G || 745 wirelessmode == WIRELESS_MODE_AC_24G) 746 ret = RATEID_IDX_BG; 747 else 748 ret = RATEID_IDX_G; 749 break; 750 case RATR_INX_WIRELESS_AC_5N: 751 if (rtlphy->rf_type == RF_1T1R) 752 ret = RATEID_IDX_VHT_1SS; 753 else 754 ret = RATEID_IDX_VHT_2SS; 755 break; 756 case RATR_INX_WIRELESS_AC_24N: 757 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) { 758 if (rtlphy->rf_type == RF_1T1R) 759 ret = RATEID_IDX_VHT_1SS; 760 else 761 ret = RATEID_IDX_VHT_2SS; 762 } else { 763 if (rtlphy->rf_type == RF_1T1R) 764 ret = RATEID_IDX_MIX1; 765 else 766 ret = RATEID_IDX_MIX2; 767 } 768 break; 769 default: 770 ret = RATEID_IDX_BGN_40M_2SS; 771 break; 772 } 773 return ret; 774 } 775 EXPORT_SYMBOL(rtl_mrate_idx_to_arfr_id); 776 777 static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, 778 struct ieee80211_sta *sta, 779 struct rtl_tcb_desc *tcb_desc) 780 { 781 #define SET_RATE_ID(rate_id) \ 782 ({typeof(rate_id) _id = rate_id; \ 783 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \ 784 rtl_mrate_idx_to_arfr_id(hw, _id, \ 785 (sta_entry ? sta_entry->wireless_mode : \ 786 WIRELESS_MODE_G)) : \ 787 _id); }) 788 789 struct rtl_priv *rtlpriv = rtl_priv(hw); 790 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 791 struct rtl_sta_info *sta_entry = NULL; 792 u8 ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC); 793 794 if (sta) { 795 sta_entry = (struct rtl_sta_info *) sta->drv_priv; 796 ratr_index = sta_entry->ratr_index; 797 } 798 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { 799 if (mac->opmode == NL80211_IFTYPE_STATION) { 800 tcb_desc->ratr_index = 0; 801 } else if (mac->opmode == NL80211_IFTYPE_ADHOC || 802 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 803 if (tcb_desc->multicast || tcb_desc->broadcast) { 804 tcb_desc->hw_rate = 805 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; 806 tcb_desc->use_driver_rate = 1; 807 tcb_desc->ratr_index = 808 SET_RATE_ID(RATR_INX_WIRELESS_MC); 809 } else { 810 tcb_desc->ratr_index = ratr_index; 811 } 812 } else if (mac->opmode == NL80211_IFTYPE_AP) { 813 tcb_desc->ratr_index = ratr_index; 814 } 815 } 816 817 if (rtlpriv->dm.useramask) { 818 tcb_desc->ratr_index = ratr_index; 819 /* TODO we will differentiate adhoc and station future */ 820 if (mac->opmode == NL80211_IFTYPE_STATION || 821 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 822 tcb_desc->mac_id = 0; 823 824 if (sta && 825 (rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID)) 826 ; /* use sta_entry->ratr_index */ 827 else if (mac->mode == WIRELESS_MODE_AC_5G) 828 tcb_desc->ratr_index = 829 SET_RATE_ID(RATR_INX_WIRELESS_AC_5N); 830 else if (mac->mode == WIRELESS_MODE_AC_24G) 831 tcb_desc->ratr_index = 832 SET_RATE_ID(RATR_INX_WIRELESS_AC_24N); 833 else if (mac->mode == WIRELESS_MODE_N_24G) 834 tcb_desc->ratr_index = 835 SET_RATE_ID(RATR_INX_WIRELESS_NGB); 836 else if (mac->mode == WIRELESS_MODE_N_5G) 837 tcb_desc->ratr_index = 838 SET_RATE_ID(RATR_INX_WIRELESS_NG); 839 else if (mac->mode & WIRELESS_MODE_G) 840 tcb_desc->ratr_index = 841 SET_RATE_ID(RATR_INX_WIRELESS_GB); 842 else if (mac->mode & WIRELESS_MODE_B) 843 tcb_desc->ratr_index = 844 SET_RATE_ID(RATR_INX_WIRELESS_B); 845 else if (mac->mode & WIRELESS_MODE_A) 846 tcb_desc->ratr_index = 847 SET_RATE_ID(RATR_INX_WIRELESS_G); 848 849 } else if (mac->opmode == NL80211_IFTYPE_AP || 850 mac->opmode == NL80211_IFTYPE_ADHOC) { 851 if (NULL != sta) { 852 if (sta->aid > 0) 853 tcb_desc->mac_id = sta->aid + 1; 854 else 855 tcb_desc->mac_id = 1; 856 } else { 857 tcb_desc->mac_id = 0; 858 } 859 } 860 } 861 #undef SET_RATE_ID 862 } 863 864 static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, 865 struct ieee80211_sta *sta, 866 struct rtl_tcb_desc *tcb_desc) 867 { 868 struct rtl_priv *rtlpriv = rtl_priv(hw); 869 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 870 871 tcb_desc->packet_bw = false; 872 if (!sta) 873 return; 874 if (mac->opmode == NL80211_IFTYPE_AP || 875 mac->opmode == NL80211_IFTYPE_ADHOC || 876 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 877 if (!(sta->ht_cap.ht_supported) || 878 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) 879 return; 880 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 881 if (!mac->bw_40 || !(sta->ht_cap.ht_supported)) 882 return; 883 } 884 if (tcb_desc->multicast || tcb_desc->broadcast) 885 return; 886 887 /*use legency rate, shall use 20MHz */ 888 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) 889 return; 890 891 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_20_40; 892 893 if (rtlpriv->cfg->spec_ver & RTL_SPEC_SUPPORT_VHT) { 894 if (mac->opmode == NL80211_IFTYPE_AP || 895 mac->opmode == NL80211_IFTYPE_ADHOC || 896 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 897 if (!(sta->vht_cap.vht_supported)) 898 return; 899 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 900 if (!mac->bw_80 || 901 !(sta->vht_cap.vht_supported)) 902 return; 903 } 904 if (tcb_desc->hw_rate <= 905 rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]) 906 return; 907 tcb_desc->packet_bw = HT_CHANNEL_WIDTH_80; 908 } 909 } 910 911 static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw, 912 struct ieee80211_sta *sta) 913 { 914 struct rtl_priv *rtlpriv = rtl_priv(hw); 915 struct rtl_phy *rtlphy = &(rtlpriv->phy); 916 u8 hw_rate; 917 u16 tx_mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.tx_mcs_map); 918 919 if ((get_rf_type(rtlphy) == RF_2T2R) && 920 (tx_mcs_map & 0x000c) != 0x000c) { 921 if ((tx_mcs_map & 0x000c) >> 2 == 922 IEEE80211_VHT_MCS_SUPPORT_0_7) 923 hw_rate = 924 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS7]; 925 else if ((tx_mcs_map & 0x000c) >> 2 == 926 IEEE80211_VHT_MCS_SUPPORT_0_8) 927 hw_rate = 928 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8]; 929 else 930 hw_rate = 931 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 932 } else { 933 if ((tx_mcs_map & 0x0003) == 934 IEEE80211_VHT_MCS_SUPPORT_0_7) 935 hw_rate = 936 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS7]; 937 else if ((tx_mcs_map & 0x0003) == 938 IEEE80211_VHT_MCS_SUPPORT_0_8) 939 hw_rate = 940 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8]; 941 else 942 hw_rate = 943 rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 944 } 945 946 return hw_rate; 947 } 948 949 static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw, 950 struct ieee80211_sta *sta) 951 { 952 struct rtl_priv *rtlpriv = rtl_priv(hw); 953 struct rtl_phy *rtlphy = &rtlpriv->phy; 954 u8 hw_rate; 955 956 if (get_rf_type(rtlphy) == RF_2T2R && 957 sta->ht_cap.mcs.rx_mask[1] != 0) 958 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; 959 else 960 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; 961 962 return hw_rate; 963 } 964 965 /* mac80211's rate_idx is like this: 966 * 967 * 2.4G band:rx_status->band == NL80211_BAND_2GHZ 968 * 969 * B/G rate: 970 * (rx_status->flag & RX_FLAG_HT) = 0, 971 * DESC_RATE1M-->DESC_RATE54M ==> idx is 0-->11, 972 * 973 * N rate: 974 * (rx_status->flag & RX_FLAG_HT) = 1, 975 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 976 * 977 * 5G band:rx_status->band == NL80211_BAND_5GHZ 978 * A rate: 979 * (rx_status->flag & RX_FLAG_HT) = 0, 980 * DESC_RATE6M-->DESC_RATE54M ==> idx is 0-->7, 981 * 982 * N rate: 983 * (rx_status->flag & RX_FLAG_HT) = 1, 984 * DESC_RATEMCS0-->DESC_RATEMCS15 ==> idx is 0-->15 985 * 986 * VHT rates: 987 * DESC_RATEVHT1SS_MCS0-->DESC_RATEVHT1SS_MCS9 ==> idx is 0-->9 988 * DESC_RATEVHT2SS_MCS0-->DESC_RATEVHT2SS_MCS9 ==> idx is 0-->9 989 */ 990 int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht, 991 u8 desc_rate) 992 { 993 int rate_idx; 994 995 if (isvht) { 996 switch (desc_rate) { 997 case DESC_RATEVHT1SS_MCS0: 998 rate_idx = 0; 999 break; 1000 case DESC_RATEVHT1SS_MCS1: 1001 rate_idx = 1; 1002 break; 1003 case DESC_RATEVHT1SS_MCS2: 1004 rate_idx = 2; 1005 break; 1006 case DESC_RATEVHT1SS_MCS3: 1007 rate_idx = 3; 1008 break; 1009 case DESC_RATEVHT1SS_MCS4: 1010 rate_idx = 4; 1011 break; 1012 case DESC_RATEVHT1SS_MCS5: 1013 rate_idx = 5; 1014 break; 1015 case DESC_RATEVHT1SS_MCS6: 1016 rate_idx = 6; 1017 break; 1018 case DESC_RATEVHT1SS_MCS7: 1019 rate_idx = 7; 1020 break; 1021 case DESC_RATEVHT1SS_MCS8: 1022 rate_idx = 8; 1023 break; 1024 case DESC_RATEVHT1SS_MCS9: 1025 rate_idx = 9; 1026 break; 1027 case DESC_RATEVHT2SS_MCS0: 1028 rate_idx = 0; 1029 break; 1030 case DESC_RATEVHT2SS_MCS1: 1031 rate_idx = 1; 1032 break; 1033 case DESC_RATEVHT2SS_MCS2: 1034 rate_idx = 2; 1035 break; 1036 case DESC_RATEVHT2SS_MCS3: 1037 rate_idx = 3; 1038 break; 1039 case DESC_RATEVHT2SS_MCS4: 1040 rate_idx = 4; 1041 break; 1042 case DESC_RATEVHT2SS_MCS5: 1043 rate_idx = 5; 1044 break; 1045 case DESC_RATEVHT2SS_MCS6: 1046 rate_idx = 6; 1047 break; 1048 case DESC_RATEVHT2SS_MCS7: 1049 rate_idx = 7; 1050 break; 1051 case DESC_RATEVHT2SS_MCS8: 1052 rate_idx = 8; 1053 break; 1054 case DESC_RATEVHT2SS_MCS9: 1055 rate_idx = 9; 1056 break; 1057 default: 1058 rate_idx = 0; 1059 break; 1060 } 1061 return rate_idx; 1062 } 1063 if (false == isht) { 1064 if (NL80211_BAND_2GHZ == hw->conf.chandef.chan->band) { 1065 switch (desc_rate) { 1066 case DESC_RATE1M: 1067 rate_idx = 0; 1068 break; 1069 case DESC_RATE2M: 1070 rate_idx = 1; 1071 break; 1072 case DESC_RATE5_5M: 1073 rate_idx = 2; 1074 break; 1075 case DESC_RATE11M: 1076 rate_idx = 3; 1077 break; 1078 case DESC_RATE6M: 1079 rate_idx = 4; 1080 break; 1081 case DESC_RATE9M: 1082 rate_idx = 5; 1083 break; 1084 case DESC_RATE12M: 1085 rate_idx = 6; 1086 break; 1087 case DESC_RATE18M: 1088 rate_idx = 7; 1089 break; 1090 case DESC_RATE24M: 1091 rate_idx = 8; 1092 break; 1093 case DESC_RATE36M: 1094 rate_idx = 9; 1095 break; 1096 case DESC_RATE48M: 1097 rate_idx = 10; 1098 break; 1099 case DESC_RATE54M: 1100 rate_idx = 11; 1101 break; 1102 default: 1103 rate_idx = 0; 1104 break; 1105 } 1106 } else { 1107 switch (desc_rate) { 1108 case DESC_RATE6M: 1109 rate_idx = 0; 1110 break; 1111 case DESC_RATE9M: 1112 rate_idx = 1; 1113 break; 1114 case DESC_RATE12M: 1115 rate_idx = 2; 1116 break; 1117 case DESC_RATE18M: 1118 rate_idx = 3; 1119 break; 1120 case DESC_RATE24M: 1121 rate_idx = 4; 1122 break; 1123 case DESC_RATE36M: 1124 rate_idx = 5; 1125 break; 1126 case DESC_RATE48M: 1127 rate_idx = 6; 1128 break; 1129 case DESC_RATE54M: 1130 rate_idx = 7; 1131 break; 1132 default: 1133 rate_idx = 0; 1134 break; 1135 } 1136 } 1137 } else { 1138 switch (desc_rate) { 1139 case DESC_RATEMCS0: 1140 rate_idx = 0; 1141 break; 1142 case DESC_RATEMCS1: 1143 rate_idx = 1; 1144 break; 1145 case DESC_RATEMCS2: 1146 rate_idx = 2; 1147 break; 1148 case DESC_RATEMCS3: 1149 rate_idx = 3; 1150 break; 1151 case DESC_RATEMCS4: 1152 rate_idx = 4; 1153 break; 1154 case DESC_RATEMCS5: 1155 rate_idx = 5; 1156 break; 1157 case DESC_RATEMCS6: 1158 rate_idx = 6; 1159 break; 1160 case DESC_RATEMCS7: 1161 rate_idx = 7; 1162 break; 1163 case DESC_RATEMCS8: 1164 rate_idx = 8; 1165 break; 1166 case DESC_RATEMCS9: 1167 rate_idx = 9; 1168 break; 1169 case DESC_RATEMCS10: 1170 rate_idx = 10; 1171 break; 1172 case DESC_RATEMCS11: 1173 rate_idx = 11; 1174 break; 1175 case DESC_RATEMCS12: 1176 rate_idx = 12; 1177 break; 1178 case DESC_RATEMCS13: 1179 rate_idx = 13; 1180 break; 1181 case DESC_RATEMCS14: 1182 rate_idx = 14; 1183 break; 1184 case DESC_RATEMCS15: 1185 rate_idx = 15; 1186 break; 1187 default: 1188 rate_idx = 0; 1189 break; 1190 } 1191 } 1192 return rate_idx; 1193 } 1194 EXPORT_SYMBOL(rtlwifi_rate_mapping); 1195 1196 static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw, 1197 struct ieee80211_tx_info *info) 1198 { 1199 struct rtl_priv *rtlpriv = rtl_priv(hw); 1200 struct ieee80211_tx_rate *r = &info->status.rates[0]; 1201 struct ieee80211_rate *txrate; 1202 u8 hw_value = 0x0; 1203 1204 if (r->flags & IEEE80211_TX_RC_MCS) { 1205 /* HT MCS0-15 */ 1206 hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 + 1207 r->idx; 1208 } else if (r->flags & IEEE80211_TX_RC_VHT_MCS) { 1209 /* VHT MCS0-9, NSS */ 1210 if (ieee80211_rate_get_vht_nss(r) == 2) 1211 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9]; 1212 else 1213 hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9]; 1214 1215 hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r); 1216 } else { 1217 /* legacy */ 1218 txrate = ieee80211_get_tx_rate(hw, info); 1219 1220 if (txrate) 1221 hw_value = txrate->hw_value; 1222 } 1223 1224 /* check 5G band */ 1225 if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G && 1226 hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M]) 1227 hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M]; 1228 1229 return hw_value; 1230 } 1231 1232 void rtl_get_tcb_desc(struct ieee80211_hw *hw, 1233 struct ieee80211_tx_info *info, 1234 struct ieee80211_sta *sta, 1235 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) 1236 { 1237 #define SET_RATE_ID(rate_id) \ 1238 ({typeof(rate_id) _id = rate_id; \ 1239 ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ? \ 1240 rtl_mrate_idx_to_arfr_id(hw, _id, \ 1241 (sta_entry ? sta_entry->wireless_mode : \ 1242 WIRELESS_MODE_G)) : \ 1243 _id); }) 1244 1245 struct rtl_priv *rtlpriv = rtl_priv(hw); 1246 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 1247 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1248 struct rtl_sta_info *sta_entry = 1249 (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL); 1250 1251 __le16 fc = rtl_get_fc(skb); 1252 1253 tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info); 1254 1255 if (rtl_is_tx_report_skb(hw, skb)) 1256 tcb_desc->use_spe_rpt = 1; 1257 1258 if (ieee80211_is_data(fc)) { 1259 /* 1260 *we set data rate INX 0 1261 *in rtl_rc.c if skb is special data or 1262 *mgt which need low data rate. 1263 */ 1264 1265 /* 1266 *So tcb_desc->hw_rate is just used for 1267 *special data and mgt frames 1268 */ 1269 if (info->control.rates[0].idx == 0 || 1270 ieee80211_is_nullfunc(fc)) { 1271 tcb_desc->use_driver_rate = true; 1272 tcb_desc->ratr_index = 1273 SET_RATE_ID(RATR_INX_WIRELESS_MC); 1274 1275 tcb_desc->disable_ratefallback = 1; 1276 } else { 1277 /* 1278 *because hw will nerver use hw_rate 1279 *when tcb_desc->use_driver_rate = false 1280 *so we never set highest N rate here, 1281 *and N rate will all be controlled by FW 1282 *when tcb_desc->use_driver_rate = false 1283 */ 1284 if (sta && sta->vht_cap.vht_supported) { 1285 tcb_desc->hw_rate = 1286 _rtl_get_vht_highest_n_rate(hw, sta); 1287 } else { 1288 if (sta && sta->ht_cap.ht_supported) { 1289 tcb_desc->hw_rate = 1290 _rtl_get_highest_n_rate(hw, sta); 1291 } else { 1292 if (rtlmac->mode == WIRELESS_MODE_B) { 1293 tcb_desc->hw_rate = 1294 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; 1295 } else { 1296 tcb_desc->hw_rate = 1297 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; 1298 } 1299 } 1300 } 1301 } 1302 1303 if (is_multicast_ether_addr(hdr->addr1)) 1304 tcb_desc->multicast = 1; 1305 else if (is_broadcast_ether_addr(hdr->addr1)) 1306 tcb_desc->broadcast = 1; 1307 1308 _rtl_txrate_selectmode(hw, sta, tcb_desc); 1309 _rtl_query_bandwidth_mode(hw, sta, tcb_desc); 1310 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); 1311 _rtl_query_shortgi(hw, sta, tcb_desc, info); 1312 _rtl_query_protection_mode(hw, tcb_desc, info); 1313 } else { 1314 tcb_desc->use_driver_rate = true; 1315 tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC); 1316 tcb_desc->disable_ratefallback = 1; 1317 tcb_desc->mac_id = 0; 1318 tcb_desc->packet_bw = false; 1319 } 1320 #undef SET_RATE_ID 1321 } 1322 EXPORT_SYMBOL(rtl_get_tcb_desc); 1323 1324 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb) 1325 { 1326 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1327 struct rtl_priv *rtlpriv = rtl_priv(hw); 1328 __le16 fc = rtl_get_fc(skb); 1329 1330 if (rtlpriv->dm.supp_phymode_switch && 1331 mac->link_state < MAC80211_LINKED && 1332 (ieee80211_is_auth(fc) || ieee80211_is_probe_req(fc))) { 1333 if (rtlpriv->cfg->ops->chk_switch_dmdp) 1334 rtlpriv->cfg->ops->chk_switch_dmdp(hw); 1335 } 1336 if (ieee80211_is_auth(fc)) { 1337 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); 1338 1339 mac->link_state = MAC80211_LINKING; 1340 /* Dul mac */ 1341 rtlpriv->phy.need_iqk = true; 1342 1343 } 1344 1345 return true; 1346 } 1347 EXPORT_SYMBOL_GPL(rtl_tx_mgmt_proc); 1348 1349 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, u8 *sa, 1350 u8 *bssid, u16 tid); 1351 1352 static void process_agg_start(struct ieee80211_hw *hw, 1353 struct ieee80211_hdr *hdr, u16 tid) 1354 { 1355 struct rtl_priv *rtlpriv = rtl_priv(hw); 1356 struct ieee80211_rx_status rx_status = { 0 }; 1357 struct sk_buff *skb_delba = NULL; 1358 1359 skb_delba = rtl_make_del_ba(hw, hdr->addr2, hdr->addr3, tid); 1360 if (skb_delba) { 1361 rx_status.freq = hw->conf.chandef.chan->center_freq; 1362 rx_status.band = hw->conf.chandef.chan->band; 1363 rx_status.flag |= RX_FLAG_DECRYPTED; 1364 rx_status.flag |= RX_FLAG_MACTIME_START; 1365 rx_status.rate_idx = 0; 1366 rx_status.signal = 50 + 10; 1367 memcpy(IEEE80211_SKB_RXCB(skb_delba), 1368 &rx_status, sizeof(rx_status)); 1369 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, 1370 "fake del\n", 1371 skb_delba->data, 1372 skb_delba->len); 1373 ieee80211_rx_irqsafe(hw, skb_delba); 1374 } 1375 } 1376 1377 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 1378 { 1379 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1380 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1381 struct rtl_priv *rtlpriv = rtl_priv(hw); 1382 __le16 fc = rtl_get_fc(skb); 1383 u8 *act = (u8 *)(((u8 *)skb->data + MAC80211_3ADDR_LEN)); 1384 u8 category; 1385 1386 if (!ieee80211_is_action(fc)) 1387 return true; 1388 1389 category = *act; 1390 act++; 1391 switch (category) { 1392 case ACT_CAT_BA: 1393 switch (*act) { 1394 case ACT_ADDBAREQ: 1395 if (mac->act_scanning) 1396 return false; 1397 1398 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1399 "%s ACT_ADDBAREQ From :%pM\n", 1400 is_tx ? "Tx" : "Rx", hdr->addr2); 1401 RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "req\n", 1402 skb->data, skb->len); 1403 if (!is_tx) { 1404 struct ieee80211_sta *sta = NULL; 1405 struct rtl_sta_info *sta_entry = NULL; 1406 struct rtl_tid_data *tid_data; 1407 struct ieee80211_mgmt *mgmt = (void *)skb->data; 1408 u16 capab = 0, tid = 0; 1409 1410 rcu_read_lock(); 1411 sta = rtl_find_sta(hw, hdr->addr3); 1412 if (sta == NULL) { 1413 RT_TRACE(rtlpriv, COMP_SEND | COMP_RECV, 1414 DBG_DMESG, "sta is NULL\n"); 1415 rcu_read_unlock(); 1416 return true; 1417 } 1418 1419 sta_entry = 1420 (struct rtl_sta_info *)sta->drv_priv; 1421 if (!sta_entry) { 1422 rcu_read_unlock(); 1423 return true; 1424 } 1425 capab = 1426 le16_to_cpu(mgmt->u.action.u.addba_req.capab); 1427 tid = (capab & 1428 IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; 1429 if (tid >= MAX_TID_COUNT) { 1430 rcu_read_unlock(); 1431 return true; 1432 } 1433 tid_data = &sta_entry->tids[tid]; 1434 if (tid_data->agg.rx_agg_state == 1435 RTL_RX_AGG_START) 1436 process_agg_start(hw, hdr, tid); 1437 rcu_read_unlock(); 1438 } 1439 break; 1440 case ACT_ADDBARSP: 1441 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1442 "%s ACT_ADDBARSP From :%pM\n", 1443 is_tx ? "Tx" : "Rx", hdr->addr2); 1444 break; 1445 case ACT_DELBA: 1446 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1447 "ACT_ADDBADEL From :%pM\n", hdr->addr2); 1448 break; 1449 } 1450 break; 1451 default: 1452 break; 1453 } 1454 1455 return true; 1456 } 1457 EXPORT_SYMBOL_GPL(rtl_action_proc); 1458 1459 static void setup_special_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc, 1460 int type) 1461 { 1462 struct ieee80211_hw *hw = rtlpriv->hw; 1463 1464 rtlpriv->ra.is_special_data = true; 1465 if (rtlpriv->cfg->ops->get_btc_status()) 1466 rtlpriv->btcoexist.btc_ops->btc_special_packet_notify( 1467 rtlpriv, type); 1468 rtl_lps_leave(hw); 1469 ppsc->last_delaylps_stamp_jiffies = jiffies; 1470 } 1471 1472 static const u8 *rtl_skb_ether_type_ptr(struct ieee80211_hw *hw, 1473 struct sk_buff *skb, bool is_enc) 1474 { 1475 struct rtl_priv *rtlpriv = rtl_priv(hw); 1476 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); 1477 u8 encrypt_header_len = 0; 1478 u8 offset; 1479 1480 switch (rtlpriv->sec.pairwise_enc_algorithm) { 1481 case WEP40_ENCRYPTION: 1482 case WEP104_ENCRYPTION: 1483 encrypt_header_len = 4;/*WEP_IV_LEN*/ 1484 break; 1485 case TKIP_ENCRYPTION: 1486 encrypt_header_len = 8;/*TKIP_IV_LEN*/ 1487 break; 1488 case AESCCMP_ENCRYPTION: 1489 encrypt_header_len = 8;/*CCMP_HDR_LEN;*/ 1490 break; 1491 default: 1492 break; 1493 } 1494 1495 offset = mac_hdr_len + SNAP_SIZE; 1496 if (is_enc) 1497 offset += encrypt_header_len; 1498 1499 return skb->data + offset; 1500 } 1501 1502 /*should call before software enc*/ 1503 u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx, 1504 bool is_enc) 1505 { 1506 struct rtl_priv *rtlpriv = rtl_priv(hw); 1507 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1508 __le16 fc = rtl_get_fc(skb); 1509 u16 ether_type; 1510 const u8 *ether_type_ptr; 1511 const struct iphdr *ip; 1512 1513 if (!ieee80211_is_data(fc)) 1514 goto end; 1515 1516 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, is_enc); 1517 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1518 1519 if (ETH_P_IP == ether_type) { 1520 ip = (struct iphdr *)((u8 *)ether_type_ptr + 1521 PROTOC_TYPE_SIZE); 1522 if (IPPROTO_UDP == ip->protocol) { 1523 struct udphdr *udp = (struct udphdr *)((u8 *)ip + 1524 (ip->ihl << 2)); 1525 if (((((u8 *)udp)[1] == 68) && 1526 (((u8 *)udp)[3] == 67)) || 1527 ((((u8 *)udp)[1] == 67) && 1528 (((u8 *)udp)[3] == 68))) { 1529 /* 68 : UDP BOOTP client 1530 * 67 : UDP BOOTP server 1531 */ 1532 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), 1533 DBG_DMESG, "dhcp %s !!\n", 1534 (is_tx) ? "Tx" : "Rx"); 1535 1536 if (is_tx) 1537 setup_special_tx(rtlpriv, ppsc, 1538 PACKET_DHCP); 1539 1540 return true; 1541 } 1542 } 1543 } else if (ETH_P_ARP == ether_type) { 1544 if (is_tx) 1545 setup_special_tx(rtlpriv, ppsc, PACKET_ARP); 1546 1547 return true; 1548 } else if (ETH_P_PAE == ether_type) { 1549 /* EAPOL is seens as in-4way */ 1550 rtlpriv->btcoexist.btc_info.in_4way = true; 1551 rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies; 1552 1553 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1554 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx"); 1555 1556 if (is_tx) { 1557 rtlpriv->ra.is_special_data = true; 1558 rtl_lps_leave(hw); 1559 ppsc->last_delaylps_stamp_jiffies = jiffies; 1560 1561 setup_special_tx(rtlpriv, ppsc, PACKET_EAPOL); 1562 } 1563 1564 return true; 1565 } else if (ETH_P_IPV6 == ether_type) { 1566 /* TODO: Handle any IPv6 cases that need special handling. 1567 * For now, always return false 1568 */ 1569 goto end; 1570 } 1571 1572 end: 1573 rtlpriv->ra.is_special_data = false; 1574 return false; 1575 } 1576 EXPORT_SYMBOL_GPL(rtl_is_special_data); 1577 1578 bool rtl_is_tx_report_skb(struct ieee80211_hw *hw, struct sk_buff *skb) 1579 { 1580 u16 ether_type; 1581 const u8 *ether_type_ptr; 1582 1583 ether_type_ptr = rtl_skb_ether_type_ptr(hw, skb, true); 1584 ether_type = be16_to_cpup((__be16 *)ether_type_ptr); 1585 1586 /* EAPOL */ 1587 if (ether_type == ETH_P_PAE) 1588 return true; 1589 1590 return false; 1591 } 1592 1593 static u16 rtl_get_tx_report_sn(struct ieee80211_hw *hw) 1594 { 1595 struct rtl_priv *rtlpriv = rtl_priv(hw); 1596 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1597 u16 sn; 1598 1599 /* SW_DEFINE[11:8] are reserved (driver fills zeros) 1600 * SW_DEFINE[7:2] are used by driver 1601 * SW_DEFINE[1:0] are reserved for firmware (driver fills zeros) 1602 */ 1603 sn = (atomic_inc_return(&tx_report->sn) & 0x003F) << 2; 1604 1605 tx_report->last_sent_sn = sn; 1606 tx_report->last_sent_time = jiffies; 1607 1608 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1609 "Send TX-Report sn=0x%X\n", sn); 1610 1611 return sn; 1612 } 1613 1614 void rtl_get_tx_report(struct rtl_tcb_desc *ptcb_desc, u8 *pdesc, 1615 struct ieee80211_hw *hw) 1616 { 1617 if (ptcb_desc->use_spe_rpt) { 1618 u16 sn = rtl_get_tx_report_sn(hw); 1619 1620 SET_TX_DESC_SPE_RPT(pdesc, 1); 1621 SET_TX_DESC_SW_DEFINE(pdesc, sn); 1622 } 1623 } 1624 EXPORT_SYMBOL_GPL(rtl_get_tx_report); 1625 1626 void rtl_tx_report_handler(struct ieee80211_hw *hw, u8 *tmp_buf, u8 c2h_cmd_len) 1627 { 1628 struct rtl_priv *rtlpriv = rtl_priv(hw); 1629 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1630 u16 sn; 1631 u8 st, retry; 1632 1633 if (rtlpriv->cfg->spec_ver & RTL_SPEC_EXT_C2H) { 1634 sn = GET_TX_REPORT_SN_V2(tmp_buf); 1635 st = GET_TX_REPORT_ST_V2(tmp_buf); 1636 retry = GET_TX_REPORT_RETRY_V2(tmp_buf); 1637 } else { 1638 sn = GET_TX_REPORT_SN_V1(tmp_buf); 1639 st = GET_TX_REPORT_ST_V1(tmp_buf); 1640 retry = GET_TX_REPORT_RETRY_V1(tmp_buf); 1641 } 1642 1643 tx_report->last_recv_sn = sn; 1644 1645 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_DMESG, 1646 "Recv TX-Report st=0x%02X sn=0x%X retry=0x%X\n", 1647 st, sn, retry); 1648 } 1649 EXPORT_SYMBOL_GPL(rtl_tx_report_handler); 1650 1651 bool rtl_check_tx_report_acked(struct ieee80211_hw *hw) 1652 { 1653 struct rtl_priv *rtlpriv = rtl_priv(hw); 1654 struct rtl_tx_report *tx_report = &rtlpriv->tx_report; 1655 1656 if (tx_report->last_sent_sn == tx_report->last_recv_sn) 1657 return true; 1658 1659 if (time_before(tx_report->last_sent_time + 3 * HZ, jiffies)) { 1660 RT_TRACE(rtlpriv, COMP_TX_REPORT, DBG_WARNING, 1661 "Check TX-Report timeout!! s_sn=0x%X r_sn=0x%X\n", 1662 tx_report->last_sent_sn, tx_report->last_recv_sn); 1663 return true; /* 3 sec. (timeout) seen as acked */ 1664 } 1665 1666 return false; 1667 } 1668 1669 void rtl_wait_tx_report_acked(struct ieee80211_hw *hw, u32 wait_ms) 1670 { 1671 struct rtl_priv *rtlpriv = rtl_priv(hw); 1672 int i; 1673 1674 for (i = 0; i < wait_ms; i++) { 1675 if (rtl_check_tx_report_acked(hw)) 1676 break; 1677 usleep_range(1000, 2000); 1678 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 1679 "Wait 1ms (%d/%d) to disable key.\n", i, wait_ms); 1680 } 1681 } 1682 1683 u32 rtl_get_hal_edca_param(struct ieee80211_hw *hw, 1684 struct ieee80211_vif *vif, 1685 enum wireless_mode wirelessmode, 1686 struct ieee80211_tx_queue_params *param) 1687 { 1688 u32 reg = 0; 1689 u8 sifstime = 10; 1690 u8 slottime = 20; 1691 1692 /* AIFS = AIFSN * slot time + SIFS */ 1693 switch (wirelessmode) { 1694 case WIRELESS_MODE_A: 1695 case WIRELESS_MODE_N_24G: 1696 case WIRELESS_MODE_N_5G: 1697 case WIRELESS_MODE_AC_5G: 1698 case WIRELESS_MODE_AC_24G: 1699 sifstime = 16; 1700 slottime = 9; 1701 break; 1702 case WIRELESS_MODE_G: 1703 slottime = (vif->bss_conf.use_short_slot ? 9 : 20); 1704 break; 1705 default: 1706 break; 1707 } 1708 1709 reg |= (param->txop & 0x7FF) << 16; 1710 reg |= (fls(param->cw_max) & 0xF) << 12; 1711 reg |= (fls(param->cw_min) & 0xF) << 8; 1712 reg |= (param->aifs & 0x0F) * slottime + sifstime; 1713 1714 return reg; 1715 } 1716 EXPORT_SYMBOL_GPL(rtl_get_hal_edca_param); 1717 1718 /********************************************************* 1719 * 1720 * functions called by core.c 1721 * 1722 *********************************************************/ 1723 int rtl_tx_agg_start(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1724 struct ieee80211_sta *sta, u16 tid, u16 *ssn) 1725 { 1726 struct rtl_priv *rtlpriv = rtl_priv(hw); 1727 struct rtl_tid_data *tid_data; 1728 struct rtl_sta_info *sta_entry = NULL; 1729 1730 if (sta == NULL) 1731 return -EINVAL; 1732 1733 if (unlikely(tid >= MAX_TID_COUNT)) 1734 return -EINVAL; 1735 1736 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1737 if (!sta_entry) 1738 return -ENXIO; 1739 tid_data = &sta_entry->tids[tid]; 1740 1741 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1742 "on ra = %pM tid = %d seq:%d\n", sta->addr, tid, 1743 *ssn); 1744 1745 tid_data->agg.agg_state = RTL_AGG_START; 1746 1747 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1748 return 0; 1749 } 1750 1751 int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1752 struct ieee80211_sta *sta, u16 tid) 1753 { 1754 struct rtl_priv *rtlpriv = rtl_priv(hw); 1755 struct rtl_sta_info *sta_entry = NULL; 1756 1757 if (sta == NULL) 1758 return -EINVAL; 1759 1760 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1761 "on ra = %pM tid = %d\n", sta->addr, tid); 1762 1763 if (unlikely(tid >= MAX_TID_COUNT)) 1764 return -EINVAL; 1765 1766 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1767 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; 1768 1769 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1770 return 0; 1771 } 1772 1773 int rtl_rx_agg_start(struct ieee80211_hw *hw, 1774 struct ieee80211_sta *sta, u16 tid) 1775 { 1776 struct rtl_priv *rtlpriv = rtl_priv(hw); 1777 struct rtl_tid_data *tid_data; 1778 struct rtl_sta_info *sta_entry = NULL; 1779 u8 reject_agg; 1780 1781 if (sta == NULL) 1782 return -EINVAL; 1783 1784 if (unlikely(tid >= MAX_TID_COUNT)) 1785 return -EINVAL; 1786 1787 if (rtlpriv->cfg->ops->get_btc_status()) { 1788 rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv, 1789 &reject_agg, 1790 NULL, NULL); 1791 if (reject_agg) 1792 return -EINVAL; 1793 } 1794 1795 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1796 if (!sta_entry) 1797 return -ENXIO; 1798 tid_data = &sta_entry->tids[tid]; 1799 1800 RT_TRACE(rtlpriv, COMP_RECV, DBG_DMESG, 1801 "on ra = %pM tid = %d\n", sta->addr, tid); 1802 1803 tid_data->agg.rx_agg_state = RTL_RX_AGG_START; 1804 return 0; 1805 } 1806 1807 int rtl_rx_agg_stop(struct ieee80211_hw *hw, 1808 struct ieee80211_sta *sta, u16 tid) 1809 { 1810 struct rtl_priv *rtlpriv = rtl_priv(hw); 1811 struct rtl_sta_info *sta_entry = NULL; 1812 1813 if (sta == NULL) 1814 return -EINVAL; 1815 1816 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1817 "on ra = %pM tid = %d\n", sta->addr, tid); 1818 1819 if (unlikely(tid >= MAX_TID_COUNT)) 1820 return -EINVAL; 1821 1822 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1823 sta_entry->tids[tid].agg.rx_agg_state = RTL_RX_AGG_STOP; 1824 1825 return 0; 1826 } 1827 int rtl_tx_agg_oper(struct ieee80211_hw *hw, 1828 struct ieee80211_sta *sta, u16 tid) 1829 { 1830 struct rtl_priv *rtlpriv = rtl_priv(hw); 1831 struct rtl_sta_info *sta_entry = NULL; 1832 1833 if (sta == NULL) 1834 return -EINVAL; 1835 1836 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, 1837 "on ra = %pM tid = %d\n", sta->addr, tid); 1838 1839 if (unlikely(tid >= MAX_TID_COUNT)) 1840 return -EINVAL; 1841 1842 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1843 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; 1844 1845 return 0; 1846 } 1847 1848 void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv) 1849 { 1850 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops; 1851 u8 reject_agg = 0, ctrl_agg_size = 0, agg_size = 0; 1852 1853 if (rtlpriv->cfg->ops->get_btc_status()) 1854 btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg, 1855 &ctrl_agg_size, &agg_size); 1856 1857 RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG, 1858 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d", 1859 reject_agg, ctrl_agg_size, agg_size); 1860 1861 rtlpriv->hw->max_rx_aggregation_subframes = 1862 (ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF); 1863 } 1864 EXPORT_SYMBOL(rtl_rx_ampdu_apply); 1865 1866 /********************************************************* 1867 * 1868 * wq & timer callback functions 1869 * 1870 *********************************************************/ 1871 /* this function is used for roaming */ 1872 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb) 1873 { 1874 struct rtl_priv *rtlpriv = rtl_priv(hw); 1875 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 1876 1877 if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION) 1878 return; 1879 1880 if (rtlpriv->mac80211.link_state < MAC80211_LINKED) 1881 return; 1882 1883 /* check if this really is a beacon */ 1884 if (!ieee80211_is_beacon(hdr->frame_control) && 1885 !ieee80211_is_probe_resp(hdr->frame_control)) 1886 return; 1887 1888 /* min. beacon length + FCS_LEN */ 1889 if (skb->len <= 40 + FCS_LEN) 1890 return; 1891 1892 /* and only beacons from the associated BSSID, please */ 1893 if (!ether_addr_equal(hdr->addr3, rtlpriv->mac80211.bssid)) 1894 return; 1895 1896 rtlpriv->link_info.bcn_rx_inperiod++; 1897 } 1898 EXPORT_SYMBOL_GPL(rtl_beacon_statistic); 1899 1900 static void rtl_free_entries_from_scan_list(struct ieee80211_hw *hw) 1901 { 1902 struct rtl_priv *rtlpriv = rtl_priv(hw); 1903 struct rtl_bssid_entry *entry, *next; 1904 1905 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1906 list_del(&entry->list); 1907 kfree(entry); 1908 rtlpriv->scan_list.num--; 1909 } 1910 } 1911 1912 void rtl_scan_list_expire(struct ieee80211_hw *hw) 1913 { 1914 struct rtl_priv *rtlpriv = rtl_priv(hw); 1915 struct rtl_bssid_entry *entry, *next; 1916 unsigned long flags; 1917 1918 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1919 1920 list_for_each_entry_safe(entry, next, &rtlpriv->scan_list.list, list) { 1921 /* 180 seconds */ 1922 if (jiffies_to_msecs(jiffies - entry->age) < 180000) 1923 continue; 1924 1925 list_del(&entry->list); 1926 rtlpriv->scan_list.num--; 1927 1928 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1929 "BSSID=%pM is expire in scan list (total=%d)\n", 1930 entry->bssid, rtlpriv->scan_list.num); 1931 kfree(entry); 1932 } 1933 1934 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 1935 1936 rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num; 1937 } 1938 1939 void rtl_collect_scan_list(struct ieee80211_hw *hw, struct sk_buff *skb) 1940 { 1941 struct rtl_priv *rtlpriv = rtl_priv(hw); 1942 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 1943 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1944 unsigned long flags; 1945 1946 struct rtl_bssid_entry *entry; 1947 bool entry_found = false; 1948 1949 /* check if it is scanning */ 1950 if (!mac->act_scanning) 1951 return; 1952 1953 /* check if this really is a beacon */ 1954 if (!ieee80211_is_beacon(hdr->frame_control) && 1955 !ieee80211_is_probe_resp(hdr->frame_control)) 1956 return; 1957 1958 spin_lock_irqsave(&rtlpriv->locks.scan_list_lock, flags); 1959 1960 list_for_each_entry(entry, &rtlpriv->scan_list.list, list) { 1961 if (memcmp(entry->bssid, hdr->addr3, ETH_ALEN) == 0) { 1962 list_del_init(&entry->list); 1963 entry_found = true; 1964 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1965 "Update BSSID=%pM to scan list (total=%d)\n", 1966 hdr->addr3, rtlpriv->scan_list.num); 1967 break; 1968 } 1969 } 1970 1971 if (!entry_found) { 1972 entry = kmalloc(sizeof(*entry), GFP_ATOMIC); 1973 1974 if (!entry) 1975 goto label_err; 1976 1977 memcpy(entry->bssid, hdr->addr3, ETH_ALEN); 1978 rtlpriv->scan_list.num++; 1979 1980 RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, 1981 "Add BSSID=%pM to scan list (total=%d)\n", 1982 hdr->addr3, rtlpriv->scan_list.num); 1983 } 1984 1985 entry->age = jiffies; 1986 1987 list_add_tail(&entry->list, &rtlpriv->scan_list.list); 1988 1989 label_err: 1990 spin_unlock_irqrestore(&rtlpriv->locks.scan_list_lock, flags); 1991 } 1992 EXPORT_SYMBOL(rtl_collect_scan_list); 1993 1994 void rtl_watchdog_wq_callback(void *data) 1995 { 1996 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 1997 struct rtl_works, 1998 watchdog_wq); 1999 struct ieee80211_hw *hw = rtlworks->hw; 2000 struct rtl_priv *rtlpriv = rtl_priv(hw); 2001 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2002 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2003 bool busytraffic = false; 2004 bool tx_busy_traffic = false; 2005 bool rx_busy_traffic = false; 2006 bool higher_busytraffic = false; 2007 bool higher_busyrxtraffic = false; 2008 u8 idx, tid; 2009 u32 rx_cnt_inp4eriod = 0; 2010 u32 tx_cnt_inp4eriod = 0; 2011 u32 aver_rx_cnt_inperiod = 0; 2012 u32 aver_tx_cnt_inperiod = 0; 2013 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; 2014 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; 2015 2016 if (is_hal_stop(rtlhal)) 2017 return; 2018 2019 /* <1> Determine if action frame is allowed */ 2020 if (mac->link_state > MAC80211_NOLINK) { 2021 if (mac->cnt_after_linked < 20) 2022 mac->cnt_after_linked++; 2023 } else { 2024 mac->cnt_after_linked = 0; 2025 } 2026 2027 /* <2> to check if traffic busy, if 2028 * busytraffic we don't change channel 2029 */ 2030 if (mac->link_state >= MAC80211_LINKED) { 2031 2032 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ 2033 for (idx = 0; idx <= 2; idx++) { 2034 rtlpriv->link_info.num_rx_in4period[idx] = 2035 rtlpriv->link_info.num_rx_in4period[idx + 1]; 2036 rtlpriv->link_info.num_tx_in4period[idx] = 2037 rtlpriv->link_info.num_tx_in4period[idx + 1]; 2038 } 2039 rtlpriv->link_info.num_rx_in4period[3] = 2040 rtlpriv->link_info.num_rx_inperiod; 2041 rtlpriv->link_info.num_tx_in4period[3] = 2042 rtlpriv->link_info.num_tx_inperiod; 2043 for (idx = 0; idx <= 3; idx++) { 2044 rx_cnt_inp4eriod += 2045 rtlpriv->link_info.num_rx_in4period[idx]; 2046 tx_cnt_inp4eriod += 2047 rtlpriv->link_info.num_tx_in4period[idx]; 2048 } 2049 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; 2050 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; 2051 2052 /* (2) check traffic busy */ 2053 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) { 2054 busytraffic = true; 2055 if (aver_rx_cnt_inperiod > aver_tx_cnt_inperiod) 2056 rx_busy_traffic = true; 2057 else 2058 tx_busy_traffic = false; 2059 } 2060 2061 /* Higher Tx/Rx data. */ 2062 if (aver_rx_cnt_inperiod > 4000 || 2063 aver_tx_cnt_inperiod > 4000) { 2064 higher_busytraffic = true; 2065 2066 /* Extremely high Rx data. */ 2067 if (aver_rx_cnt_inperiod > 5000) 2068 higher_busyrxtraffic = true; 2069 } 2070 2071 /* check every tid's tx traffic */ 2072 for (tid = 0; tid <= 7; tid++) { 2073 for (idx = 0; idx <= 2; idx++) 2074 rtlpriv->link_info.tidtx_in4period[tid][idx] = 2075 rtlpriv->link_info.tidtx_in4period[tid] 2076 [idx + 1]; 2077 rtlpriv->link_info.tidtx_in4period[tid][3] = 2078 rtlpriv->link_info.tidtx_inperiod[tid]; 2079 2080 for (idx = 0; idx <= 3; idx++) 2081 tidtx_inp4eriod[tid] += 2082 rtlpriv->link_info.tidtx_in4period[tid][idx]; 2083 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; 2084 if (aver_tidtx_inperiod[tid] > 5000) 2085 rtlpriv->link_info.higher_busytxtraffic[tid] = 2086 true; 2087 else 2088 rtlpriv->link_info.higher_busytxtraffic[tid] = 2089 false; 2090 } 2091 2092 /* PS is controlled by coex. */ 2093 if (rtlpriv->cfg->ops->get_btc_status() && 2094 rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv)) 2095 goto label_lps_done; 2096 2097 if (rtlpriv->link_info.num_rx_inperiod + 2098 rtlpriv->link_info.num_tx_inperiod > 8 || 2099 rtlpriv->link_info.num_rx_inperiod > 2) 2100 rtl_lps_leave(hw); 2101 else 2102 rtl_lps_enter(hw); 2103 2104 label_lps_done: 2105 ; 2106 } 2107 2108 rtlpriv->link_info.num_rx_inperiod = 0; 2109 rtlpriv->link_info.num_tx_inperiod = 0; 2110 for (tid = 0; tid <= 7; tid++) 2111 rtlpriv->link_info.tidtx_inperiod[tid] = 0; 2112 2113 rtlpriv->link_info.busytraffic = busytraffic; 2114 rtlpriv->link_info.higher_busytraffic = higher_busytraffic; 2115 rtlpriv->link_info.rx_busy_traffic = rx_busy_traffic; 2116 rtlpriv->link_info.tx_busy_traffic = tx_busy_traffic; 2117 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; 2118 2119 rtlpriv->stats.txbytesunicast_inperiod = 2120 rtlpriv->stats.txbytesunicast - 2121 rtlpriv->stats.txbytesunicast_last; 2122 rtlpriv->stats.rxbytesunicast_inperiod = 2123 rtlpriv->stats.rxbytesunicast - 2124 rtlpriv->stats.rxbytesunicast_last; 2125 rtlpriv->stats.txbytesunicast_last = rtlpriv->stats.txbytesunicast; 2126 rtlpriv->stats.rxbytesunicast_last = rtlpriv->stats.rxbytesunicast; 2127 2128 rtlpriv->stats.txbytesunicast_inperiod_tp = 2129 (u32)(rtlpriv->stats.txbytesunicast_inperiod * 8 / 2 / 2130 1024 / 1024); 2131 rtlpriv->stats.rxbytesunicast_inperiod_tp = 2132 (u32)(rtlpriv->stats.rxbytesunicast_inperiod * 8 / 2 / 2133 1024 / 1024); 2134 2135 /* <3> DM */ 2136 if (!rtlpriv->cfg->mod_params->disable_watchdog) 2137 rtlpriv->cfg->ops->dm_watchdog(hw); 2138 2139 /* <4> roaming */ 2140 if (mac->link_state == MAC80211_LINKED && 2141 mac->opmode == NL80211_IFTYPE_STATION) { 2142 if ((rtlpriv->link_info.bcn_rx_inperiod + 2143 rtlpriv->link_info.num_rx_inperiod) == 0) { 2144 rtlpriv->link_info.roam_times++; 2145 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG, 2146 "AP off for %d s\n", 2147 (rtlpriv->link_info.roam_times * 2)); 2148 2149 /* if we can't recv beacon for 10s, 2150 * we should reconnect this AP 2151 */ 2152 if (rtlpriv->link_info.roam_times >= 5) { 2153 pr_err("AP off, try to reconnect now\n"); 2154 rtlpriv->link_info.roam_times = 0; 2155 ieee80211_connection_loss( 2156 rtlpriv->mac80211.vif); 2157 } 2158 } else { 2159 rtlpriv->link_info.roam_times = 0; 2160 } 2161 } 2162 2163 if (rtlpriv->cfg->ops->get_btc_status()) 2164 rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv); 2165 2166 if (rtlpriv->btcoexist.btc_info.in_4way) { 2167 if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts + 2168 msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME))) 2169 rtlpriv->btcoexist.btc_info.in_4way = false; 2170 } 2171 2172 rtlpriv->link_info.bcn_rx_inperiod = 0; 2173 2174 /* <6> scan list */ 2175 rtl_scan_list_expire(hw); 2176 } 2177 2178 void rtl_watch_dog_timer_callback(struct timer_list *t) 2179 { 2180 struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer); 2181 2182 queue_delayed_work(rtlpriv->works.rtl_wq, 2183 &rtlpriv->works.watchdog_wq, 0); 2184 2185 mod_timer(&rtlpriv->works.watchdog_timer, 2186 jiffies + MSECS(RTL_WATCH_DOG_TIME)); 2187 } 2188 void rtl_fwevt_wq_callback(void *data) 2189 { 2190 struct rtl_works *rtlworks = 2191 container_of_dwork_rtl(data, struct rtl_works, fwevt_wq); 2192 struct ieee80211_hw *hw = rtlworks->hw; 2193 struct rtl_priv *rtlpriv = rtl_priv(hw); 2194 2195 rtlpriv->cfg->ops->c2h_command_handle(hw); 2196 } 2197 2198 void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, u8 tag, u8 len, u8 *val) 2199 { 2200 struct rtl_priv *rtlpriv = rtl_priv(hw); 2201 unsigned long flags; 2202 struct rtl_c2hcmd *c2hcmd; 2203 2204 c2hcmd = kmalloc(sizeof(*c2hcmd), 2205 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 2206 2207 if (!c2hcmd) 2208 goto label_err; 2209 2210 c2hcmd->val = kmalloc(len, 2211 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); 2212 2213 if (!c2hcmd->val) 2214 goto label_err2; 2215 2216 /* fill data */ 2217 c2hcmd->tag = tag; 2218 c2hcmd->len = len; 2219 memcpy(c2hcmd->val, val, len); 2220 2221 /* enqueue */ 2222 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 2223 2224 list_add_tail(&c2hcmd->list, &rtlpriv->c2hcmd_list); 2225 2226 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 2227 2228 /* wake up wq */ 2229 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0); 2230 2231 return; 2232 2233 label_err2: 2234 kfree(c2hcmd); 2235 2236 label_err: 2237 RT_TRACE(rtlpriv, COMP_CMD, DBG_WARNING, 2238 "C2H cmd enqueue fail.\n"); 2239 } 2240 EXPORT_SYMBOL(rtl_c2hcmd_enqueue); 2241 2242 void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec) 2243 { 2244 struct rtl_priv *rtlpriv = rtl_priv(hw); 2245 unsigned long flags; 2246 struct rtl_c2hcmd *c2hcmd; 2247 int i; 2248 2249 for (i = 0; i < 200; i++) { 2250 /* dequeue a task */ 2251 spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); 2252 2253 c2hcmd = list_first_entry_or_null(&rtlpriv->c2hcmd_list, 2254 struct rtl_c2hcmd, list); 2255 2256 if (c2hcmd) 2257 list_del(&c2hcmd->list); 2258 2259 spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); 2260 2261 /* do it */ 2262 if (!c2hcmd) 2263 break; 2264 2265 if (rtlpriv->cfg->ops->c2h_content_parsing && exec) 2266 rtlpriv->cfg->ops->c2h_content_parsing(hw, 2267 c2hcmd->tag, c2hcmd->len, c2hcmd->val); 2268 2269 /* free */ 2270 kfree(c2hcmd->val); 2271 2272 kfree(c2hcmd); 2273 } 2274 } 2275 2276 void rtl_c2hcmd_wq_callback(void *data) 2277 { 2278 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 2279 struct rtl_works, 2280 c2hcmd_wq); 2281 struct ieee80211_hw *hw = rtlworks->hw; 2282 2283 rtl_c2hcmd_launcher(hw, 1); 2284 } 2285 2286 void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t) 2287 { 2288 struct rtl_priv *rtlpriv = 2289 from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer); 2290 struct ieee80211_hw *hw = rtlpriv->hw; 2291 struct rtl_priv *buddy_priv = rtlpriv->buddy_priv; 2292 2293 if (buddy_priv == NULL) 2294 return; 2295 2296 rtlpriv->cfg->ops->dualmac_easy_concurrent(hw); 2297 } 2298 /********************************************************* 2299 * 2300 * frame process functions 2301 * 2302 *********************************************************/ 2303 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) 2304 { 2305 struct ieee80211_mgmt *mgmt = (void *)data; 2306 u8 *pos, *end; 2307 2308 pos = (u8 *)mgmt->u.beacon.variable; 2309 end = data + len; 2310 while (pos < end) { 2311 if (pos + 2 + pos[1] > end) 2312 return NULL; 2313 2314 if (pos[0] == ie) 2315 return pos; 2316 2317 pos += 2 + pos[1]; 2318 } 2319 return NULL; 2320 } 2321 2322 /* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ 2323 /* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ 2324 static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, 2325 enum ieee80211_smps_mode smps, 2326 u8 *da, u8 *bssid) 2327 { 2328 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2329 struct sk_buff *skb; 2330 struct ieee80211_mgmt *action_frame; 2331 2332 /* 27 = header + category + action + smps mode */ 2333 skb = dev_alloc_skb(27 + hw->extra_tx_headroom); 2334 if (!skb) 2335 return NULL; 2336 2337 skb_reserve(skb, hw->extra_tx_headroom); 2338 action_frame = skb_put_zero(skb, 27); 2339 memcpy(action_frame->da, da, ETH_ALEN); 2340 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); 2341 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2342 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2343 IEEE80211_STYPE_ACTION); 2344 action_frame->u.action.category = WLAN_CATEGORY_HT; 2345 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; 2346 switch (smps) { 2347 case IEEE80211_SMPS_AUTOMATIC:/* 0 */ 2348 case IEEE80211_SMPS_NUM_MODES:/* 4 */ 2349 WARN_ON(1); 2350 /* fall through */ 2351 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ 2352 action_frame->u.action.u.ht_smps.smps_control = 2353 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ 2354 break; 2355 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ 2356 action_frame->u.action.u.ht_smps.smps_control = 2357 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ 2358 break; 2359 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ 2360 action_frame->u.action.u.ht_smps.smps_control = 2361 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ 2362 break; 2363 } 2364 2365 return skb; 2366 } 2367 2368 int rtl_send_smps_action(struct ieee80211_hw *hw, 2369 struct ieee80211_sta *sta, 2370 enum ieee80211_smps_mode smps) 2371 { 2372 struct rtl_priv *rtlpriv = rtl_priv(hw); 2373 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2374 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 2375 struct sk_buff *skb = NULL; 2376 struct rtl_tcb_desc tcb_desc; 2377 u8 bssid[ETH_ALEN] = {0}; 2378 2379 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 2380 2381 if (rtlpriv->mac80211.act_scanning) 2382 goto err_free; 2383 2384 if (!sta) 2385 goto err_free; 2386 2387 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON)) 2388 goto err_free; 2389 2390 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status)) 2391 goto err_free; 2392 2393 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) 2394 memcpy(bssid, rtlpriv->efuse.dev_addr, ETH_ALEN); 2395 else 2396 memcpy(bssid, rtlpriv->mac80211.bssid, ETH_ALEN); 2397 2398 skb = rtl_make_smps_action(hw, smps, sta->addr, bssid); 2399 /* this is a type = mgmt * stype = action frame */ 2400 if (skb) { 2401 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 2402 struct rtl_sta_info *sta_entry = 2403 (struct rtl_sta_info *) sta->drv_priv; 2404 sta_entry->mimo_ps = smps; 2405 /* rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true); */ 2406 2407 info->control.rates[0].idx = 0; 2408 info->band = hw->conf.chandef.chan->band; 2409 rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc); 2410 } 2411 return 1; 2412 2413 err_free: 2414 return 0; 2415 } 2416 EXPORT_SYMBOL(rtl_send_smps_action); 2417 2418 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation) 2419 { 2420 struct rtl_priv *rtlpriv = rtl_priv(hw); 2421 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 2422 enum io_type iotype; 2423 2424 if (!is_hal_stop(rtlhal)) { 2425 switch (operation) { 2426 case SCAN_OPT_BACKUP: 2427 iotype = IO_CMD_PAUSE_DM_BY_SCAN; 2428 rtlpriv->cfg->ops->set_hw_reg(hw, 2429 HW_VAR_IO_CMD, 2430 (u8 *)&iotype); 2431 break; 2432 case SCAN_OPT_RESTORE: 2433 iotype = IO_CMD_RESUME_DM_BY_SCAN; 2434 rtlpriv->cfg->ops->set_hw_reg(hw, 2435 HW_VAR_IO_CMD, 2436 (u8 *)&iotype); 2437 break; 2438 default: 2439 pr_err("Unknown Scan Backup operation.\n"); 2440 break; 2441 } 2442 } 2443 } 2444 EXPORT_SYMBOL(rtl_phy_scan_operation_backup); 2445 2446 /* because mac80211 have issues when can receive del ba 2447 * so here we just make a fake del_ba if we receive a ba_req 2448 * but rx_agg was opened to let mac80211 release some ba 2449 * related resources, so please this del_ba for tx 2450 */ 2451 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw, 2452 u8 *sa, u8 *bssid, u16 tid) 2453 { 2454 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 2455 struct sk_buff *skb; 2456 struct ieee80211_mgmt *action_frame; 2457 u16 params; 2458 2459 /* 27 = header + category + action + smps mode */ 2460 skb = dev_alloc_skb(34 + hw->extra_tx_headroom); 2461 if (!skb) 2462 return NULL; 2463 2464 skb_reserve(skb, hw->extra_tx_headroom); 2465 action_frame = skb_put_zero(skb, 34); 2466 memcpy(action_frame->sa, sa, ETH_ALEN); 2467 memcpy(action_frame->da, rtlefuse->dev_addr, ETH_ALEN); 2468 memcpy(action_frame->bssid, bssid, ETH_ALEN); 2469 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2470 IEEE80211_STYPE_ACTION); 2471 action_frame->u.action.category = WLAN_CATEGORY_BACK; 2472 action_frame->u.action.u.delba.action_code = WLAN_ACTION_DELBA; 2473 params = (u16)(1 << 11); /* bit 11 initiator */ 2474 params |= (u16)(tid << 12); /* bit 15:12 TID number */ 2475 2476 action_frame->u.action.u.delba.params = cpu_to_le16(params); 2477 action_frame->u.action.u.delba.reason_code = 2478 cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT); 2479 2480 return skb; 2481 } 2482 2483 /********************************************************* 2484 * 2485 * IOT functions 2486 * 2487 *********************************************************/ 2488 static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, 2489 struct octet_string vendor_ie) 2490 { 2491 struct rtl_priv *rtlpriv = rtl_priv(hw); 2492 bool matched = false; 2493 static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; 2494 static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; 2495 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; 2496 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; 2497 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; 2498 static u8 racap[] = { 0x00, 0x0c, 0x43 }; 2499 static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; 2500 static u8 marvcap[] = { 0x00, 0x50, 0x43 }; 2501 2502 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || 2503 memcmp(vendor_ie.octet, athcap_2, 3) == 0) { 2504 rtlpriv->mac80211.vendor = PEER_ATH; 2505 matched = true; 2506 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || 2507 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || 2508 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { 2509 rtlpriv->mac80211.vendor = PEER_BROAD; 2510 matched = true; 2511 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { 2512 rtlpriv->mac80211.vendor = PEER_RAL; 2513 matched = true; 2514 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { 2515 rtlpriv->mac80211.vendor = PEER_CISCO; 2516 matched = true; 2517 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { 2518 rtlpriv->mac80211.vendor = PEER_MARV; 2519 matched = true; 2520 } 2521 2522 return matched; 2523 } 2524 2525 static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, 2526 unsigned int len) 2527 { 2528 struct ieee80211_mgmt *mgmt = (void *)data; 2529 struct octet_string vendor_ie; 2530 u8 *pos, *end; 2531 2532 pos = (u8 *)mgmt->u.beacon.variable; 2533 end = data + len; 2534 while (pos < end) { 2535 if (pos[0] == 221) { 2536 vendor_ie.length = pos[1]; 2537 vendor_ie.octet = &pos[2]; 2538 if (rtl_chk_vendor_ouisub(hw, vendor_ie)) 2539 return true; 2540 } 2541 2542 if (pos + 2 + pos[1] > end) 2543 return false; 2544 2545 pos += 2 + pos[1]; 2546 } 2547 return false; 2548 } 2549 2550 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) 2551 { 2552 struct rtl_priv *rtlpriv = rtl_priv(hw); 2553 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 2554 struct ieee80211_hdr *hdr = (void *)data; 2555 u32 vendor = PEER_UNKNOWN; 2556 2557 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; 2558 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; 2559 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; 2560 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; 2561 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; 2562 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; 2563 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; 2564 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; 2565 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; 2566 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; 2567 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; 2568 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; 2569 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; 2570 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; 2571 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; 2572 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; 2573 2574 if (mac->opmode != NL80211_IFTYPE_STATION) 2575 return; 2576 2577 if (mac->link_state == MAC80211_NOLINK) { 2578 mac->vendor = PEER_UNKNOWN; 2579 return; 2580 } 2581 2582 if (mac->cnt_after_linked > 2) 2583 return; 2584 2585 /* check if this really is a beacon */ 2586 if (!ieee80211_is_beacon(hdr->frame_control)) 2587 return; 2588 2589 /* min. beacon length + FCS_LEN */ 2590 if (len <= 40 + FCS_LEN) 2591 return; 2592 2593 /* and only beacons from the associated BSSID, please */ 2594 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid)) 2595 return; 2596 2597 if (rtl_find_221_ie(hw, data, len)) 2598 vendor = mac->vendor; 2599 2600 if ((memcmp(mac->bssid, ap5_1, 3) == 0) || 2601 (memcmp(mac->bssid, ap5_2, 3) == 0) || 2602 (memcmp(mac->bssid, ap5_3, 3) == 0) || 2603 (memcmp(mac->bssid, ap5_4, 3) == 0) || 2604 (memcmp(mac->bssid, ap5_5, 3) == 0) || 2605 (memcmp(mac->bssid, ap5_6, 3) == 0) || 2606 vendor == PEER_ATH) { 2607 vendor = PEER_ATH; 2608 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); 2609 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || 2610 (memcmp(mac->bssid, ap4_5, 3) == 0) || 2611 (memcmp(mac->bssid, ap4_1, 3) == 0) || 2612 (memcmp(mac->bssid, ap4_2, 3) == 0) || 2613 (memcmp(mac->bssid, ap4_3, 3) == 0) || 2614 vendor == PEER_RAL) { 2615 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); 2616 vendor = PEER_RAL; 2617 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || 2618 vendor == PEER_CISCO) { 2619 vendor = PEER_CISCO; 2620 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); 2621 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || 2622 (memcmp(mac->bssid, ap3_2, 3) == 0) || 2623 (memcmp(mac->bssid, ap3_3, 3) == 0) || 2624 vendor == PEER_BROAD) { 2625 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); 2626 vendor = PEER_BROAD; 2627 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || 2628 vendor == PEER_MARV) { 2629 vendor = PEER_MARV; 2630 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); 2631 } 2632 2633 mac->vendor = vendor; 2634 } 2635 EXPORT_SYMBOL_GPL(rtl_recognize_peer); 2636 2637 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 2638 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 2639 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 2640 MODULE_LICENSE("GPL"); 2641 MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); 2642 2643 struct rtl_global_var rtl_global_var = {}; 2644 EXPORT_SYMBOL_GPL(rtl_global_var); 2645 2646 static int __init rtl_core_module_init(void) 2647 { 2648 BUILD_BUG_ON(TX_PWR_BY_RATE_NUM_RATE < TX_PWR_BY_RATE_NUM_SECTION); 2649 BUILD_BUG_ON(MAX_RATE_SECTION_NUM != MAX_RATE_SECTION); 2650 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_24G != MAX_RATE_SECTION); 2651 BUILD_BUG_ON(MAX_BASE_NUM_IN_PHY_REG_PG_5G != (MAX_RATE_SECTION - 1)); 2652 2653 if (rtl_rate_control_register()) 2654 pr_err("rtl: Unable to register rtl_rc, use default RC !!\n"); 2655 2656 /* add debugfs */ 2657 rtl_debugfs_add_topdir(); 2658 2659 /* init some global vars */ 2660 INIT_LIST_HEAD(&rtl_global_var.glb_priv_list); 2661 spin_lock_init(&rtl_global_var.glb_list_lock); 2662 2663 return 0; 2664 } 2665 2666 static void __exit rtl_core_module_exit(void) 2667 { 2668 /*RC*/ 2669 rtl_rate_control_unregister(); 2670 2671 /* remove debugfs */ 2672 rtl_debugfs_remove_topdir(); 2673 } 2674 2675 module_init(rtl_core_module_init); 2676 module_exit(rtl_core_module_exit); 2677