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 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * The full GNU General Public License is included in this distribution in the 19 * file called LICENSE. 20 * 21 * Contact Information: 22 * wlanfae <wlanfae@realtek.com> 23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, 24 * Hsinchu 300, Taiwan. 25 * 26 * Larry Finger <Larry.Finger@lwfinger.net> 27 * 28 *****************************************************************************/ 29 30#include "wifi.h" 31#include "rc.h" 32#include "base.h" 33#include "efuse.h" 34#include "cam.h" 35#include "ps.h" 36#include "regd.h" 37 38#include <linux/ip.h> 39#include <linux/module.h> 40 41/* 42 *NOTICE!!!: This file will be very big, we should 43 *keep it clear under following roles: 44 * 45 *This file include following parts, so, if you add new 46 *functions into this file, please check which part it 47 *should includes. or check if you should add new part 48 *for this file: 49 * 50 *1) mac80211 init functions 51 *2) tx information functions 52 *3) functions called by core.c 53 *4) wq & timer callback functions 54 *5) frame process functions 55 *6) IOT functions 56 *7) sysfs functions 57 *8) ... 58 */ 59 60/********************************************************* 61 * 62 * mac80211 init functions 63 * 64 *********************************************************/ 65static struct ieee80211_channel rtl_channeltable_2g[] = { 66 {.center_freq = 2412, .hw_value = 1,}, 67 {.center_freq = 2417, .hw_value = 2,}, 68 {.center_freq = 2422, .hw_value = 3,}, 69 {.center_freq = 2427, .hw_value = 4,}, 70 {.center_freq = 2432, .hw_value = 5,}, 71 {.center_freq = 2437, .hw_value = 6,}, 72 {.center_freq = 2442, .hw_value = 7,}, 73 {.center_freq = 2447, .hw_value = 8,}, 74 {.center_freq = 2452, .hw_value = 9,}, 75 {.center_freq = 2457, .hw_value = 10,}, 76 {.center_freq = 2462, .hw_value = 11,}, 77 {.center_freq = 2467, .hw_value = 12,}, 78 {.center_freq = 2472, .hw_value = 13,}, 79 {.center_freq = 2484, .hw_value = 14,}, 80}; 81 82static struct ieee80211_channel rtl_channeltable_5g[] = { 83 {.center_freq = 5180, .hw_value = 36,}, 84 {.center_freq = 5200, .hw_value = 40,}, 85 {.center_freq = 5220, .hw_value = 44,}, 86 {.center_freq = 5240, .hw_value = 48,}, 87 {.center_freq = 5260, .hw_value = 52,}, 88 {.center_freq = 5280, .hw_value = 56,}, 89 {.center_freq = 5300, .hw_value = 60,}, 90 {.center_freq = 5320, .hw_value = 64,}, 91 {.center_freq = 5500, .hw_value = 100,}, 92 {.center_freq = 5520, .hw_value = 104,}, 93 {.center_freq = 5540, .hw_value = 108,}, 94 {.center_freq = 5560, .hw_value = 112,}, 95 {.center_freq = 5580, .hw_value = 116,}, 96 {.center_freq = 5600, .hw_value = 120,}, 97 {.center_freq = 5620, .hw_value = 124,}, 98 {.center_freq = 5640, .hw_value = 128,}, 99 {.center_freq = 5660, .hw_value = 132,}, 100 {.center_freq = 5680, .hw_value = 136,}, 101 {.center_freq = 5700, .hw_value = 140,}, 102 {.center_freq = 5745, .hw_value = 149,}, 103 {.center_freq = 5765, .hw_value = 153,}, 104 {.center_freq = 5785, .hw_value = 157,}, 105 {.center_freq = 5805, .hw_value = 161,}, 106 {.center_freq = 5825, .hw_value = 165,}, 107}; 108 109static struct ieee80211_rate rtl_ratetable_2g[] = { 110 {.bitrate = 10, .hw_value = 0x00,}, 111 {.bitrate = 20, .hw_value = 0x01,}, 112 {.bitrate = 55, .hw_value = 0x02,}, 113 {.bitrate = 110, .hw_value = 0x03,}, 114 {.bitrate = 60, .hw_value = 0x04,}, 115 {.bitrate = 90, .hw_value = 0x05,}, 116 {.bitrate = 120, .hw_value = 0x06,}, 117 {.bitrate = 180, .hw_value = 0x07,}, 118 {.bitrate = 240, .hw_value = 0x08,}, 119 {.bitrate = 360, .hw_value = 0x09,}, 120 {.bitrate = 480, .hw_value = 0x0a,}, 121 {.bitrate = 540, .hw_value = 0x0b,}, 122}; 123 124static struct ieee80211_rate rtl_ratetable_5g[] = { 125 {.bitrate = 60, .hw_value = 0x04,}, 126 {.bitrate = 90, .hw_value = 0x05,}, 127 {.bitrate = 120, .hw_value = 0x06,}, 128 {.bitrate = 180, .hw_value = 0x07,}, 129 {.bitrate = 240, .hw_value = 0x08,}, 130 {.bitrate = 360, .hw_value = 0x09,}, 131 {.bitrate = 480, .hw_value = 0x0a,}, 132 {.bitrate = 540, .hw_value = 0x0b,}, 133}; 134 135static const struct ieee80211_supported_band rtl_band_2ghz = { 136 .band = IEEE80211_BAND_2GHZ, 137 138 .channels = rtl_channeltable_2g, 139 .n_channels = ARRAY_SIZE(rtl_channeltable_2g), 140 141 .bitrates = rtl_ratetable_2g, 142 .n_bitrates = ARRAY_SIZE(rtl_ratetable_2g), 143 144 .ht_cap = {0}, 145}; 146 147static struct ieee80211_supported_band rtl_band_5ghz = { 148 .band = IEEE80211_BAND_5GHZ, 149 150 .channels = rtl_channeltable_5g, 151 .n_channels = ARRAY_SIZE(rtl_channeltable_5g), 152 153 .bitrates = rtl_ratetable_5g, 154 .n_bitrates = ARRAY_SIZE(rtl_ratetable_5g), 155 156 .ht_cap = {0}, 157}; 158 159static const u8 tid_to_ac[] = { 160 2, /* IEEE80211_AC_BE */ 161 3, /* IEEE80211_AC_BK */ 162 3, /* IEEE80211_AC_BK */ 163 2, /* IEEE80211_AC_BE */ 164 1, /* IEEE80211_AC_VI */ 165 1, /* IEEE80211_AC_VI */ 166 0, /* IEEE80211_AC_VO */ 167 0, /* IEEE80211_AC_VO */ 168}; 169 170u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid) 171{ 172 return tid_to_ac[tid]; 173} 174 175static void _rtl_init_hw_ht_capab(struct ieee80211_hw *hw, 176 struct ieee80211_sta_ht_cap *ht_cap) 177{ 178 struct rtl_priv *rtlpriv = rtl_priv(hw); 179 struct rtl_phy *rtlphy = &(rtlpriv->phy); 180 181 ht_cap->ht_supported = true; 182 ht_cap->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 183 IEEE80211_HT_CAP_SGI_40 | 184 IEEE80211_HT_CAP_SGI_20 | 185 IEEE80211_HT_CAP_DSSSCCK40 | IEEE80211_HT_CAP_MAX_AMSDU; 186 187 if (rtlpriv->rtlhal.disable_amsdu_8k) 188 ht_cap->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 189 190 /* 191 *Maximum length of AMPDU that the STA can receive. 192 *Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 193 */ 194 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 195 196 /*Minimum MPDU start spacing , */ 197 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 198 199 ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 200 201 /* 202 *hw->wiphy->bands[IEEE80211_BAND_2GHZ] 203 *base on ant_num 204 *rx_mask: RX mask 205 *if rx_ant =1 rx_mask[0]=0xff;==>MCS0-MCS7 206 *if rx_ant =2 rx_mask[1]=0xff;==>MCS8-MCS15 207 *if rx_ant >=3 rx_mask[2]=0xff; 208 *if BW_40 rx_mask[4]=0x01; 209 *highest supported RX rate 210 */ 211 if (get_rf_type(rtlphy) == RF_1T2R || get_rf_type(rtlphy) == RF_2T2R) { 212 213 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T2R or 2T2R\n"); 214 215 ht_cap->mcs.rx_mask[0] = 0xFF; 216 ht_cap->mcs.rx_mask[1] = 0xFF; 217 ht_cap->mcs.rx_mask[4] = 0x01; 218 219 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS15); 220 } else if (get_rf_type(rtlphy) == RF_1T1R) { 221 222 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "1T1R\n"); 223 224 ht_cap->mcs.rx_mask[0] = 0xFF; 225 ht_cap->mcs.rx_mask[1] = 0x00; 226 ht_cap->mcs.rx_mask[4] = 0x01; 227 228 ht_cap->mcs.rx_highest = cpu_to_le16(MAX_BIT_RATE_40MHZ_MCS7); 229 } 230} 231 232static void _rtl_init_mac80211(struct ieee80211_hw *hw) 233{ 234 struct rtl_priv *rtlpriv = rtl_priv(hw); 235 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 236 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 237 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 238 struct ieee80211_supported_band *sband; 239 240 241 if (rtlhal->macphymode == SINGLEMAC_SINGLEPHY && rtlhal->bandset == 242 BAND_ON_BOTH) { 243 /* 1: 2.4 G bands */ 244 /* <1> use mac->bands as mem for hw->wiphy->bands */ 245 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]); 246 247 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ] 248 * to default value(1T1R) */ 249 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), &rtl_band_2ghz, 250 sizeof(struct ieee80211_supported_band)); 251 252 /* <3> init ht cap base on ant_num */ 253 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 254 255 /* <4> set mac->sband to wiphy->sband */ 256 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband; 257 258 /* 2: 5 G bands */ 259 /* <1> use mac->bands as mem for hw->wiphy->bands */ 260 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]); 261 262 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ] 263 * to default value(1T1R) */ 264 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), &rtl_band_5ghz, 265 sizeof(struct ieee80211_supported_band)); 266 267 /* <3> init ht cap base on ant_num */ 268 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 269 270 /* <4> set mac->sband to wiphy->sband */ 271 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband; 272 } else { 273 if (rtlhal->current_bandtype == BAND_ON_2_4G) { 274 /* <1> use mac->bands as mem for hw->wiphy->bands */ 275 sband = &(rtlmac->bands[IEEE80211_BAND_2GHZ]); 276 277 /* <2> set hw->wiphy->bands[IEEE80211_BAND_2GHZ] 278 * to default value(1T1R) */ 279 memcpy(&(rtlmac->bands[IEEE80211_BAND_2GHZ]), 280 &rtl_band_2ghz, 281 sizeof(struct ieee80211_supported_band)); 282 283 /* <3> init ht cap base on ant_num */ 284 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 285 286 /* <4> set mac->sband to wiphy->sband */ 287 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband; 288 } else if (rtlhal->current_bandtype == BAND_ON_5G) { 289 /* <1> use mac->bands as mem for hw->wiphy->bands */ 290 sband = &(rtlmac->bands[IEEE80211_BAND_5GHZ]); 291 292 /* <2> set hw->wiphy->bands[IEEE80211_BAND_5GHZ] 293 * to default value(1T1R) */ 294 memcpy(&(rtlmac->bands[IEEE80211_BAND_5GHZ]), 295 &rtl_band_5ghz, 296 sizeof(struct ieee80211_supported_band)); 297 298 /* <3> init ht cap base on ant_num */ 299 _rtl_init_hw_ht_capab(hw, &sband->ht_cap); 300 301 /* <4> set mac->sband to wiphy->sband */ 302 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband; 303 } else { 304 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, "Err BAND %d\n", 305 rtlhal->current_bandtype); 306 } 307 } 308 /* <5> set hw caps */ 309 hw->flags = IEEE80211_HW_SIGNAL_DBM | 310 IEEE80211_HW_RX_INCLUDES_FCS | 311 IEEE80211_HW_AMPDU_AGGREGATION | 312 IEEE80211_HW_CONNECTION_MONITOR | 313 /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */ 314 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0; 315 316 /* swlps or hwlps has been set in diff chip in init_sw_vars */ 317 if (rtlpriv->psc.swctrl_lps) 318 hw->flags |= IEEE80211_HW_SUPPORTS_PS | 319 IEEE80211_HW_PS_NULLFUNC_STACK | 320 /* IEEE80211_HW_SUPPORTS_DYNAMIC_PS | */ 321 0; 322 323 hw->wiphy->interface_modes = 324 BIT(NL80211_IFTYPE_AP) | 325 BIT(NL80211_IFTYPE_STATION) | 326 BIT(NL80211_IFTYPE_ADHOC); 327 328 hw->wiphy->rts_threshold = 2347; 329 330 hw->queues = AC_MAX; 331 hw->extra_tx_headroom = RTL_TX_HEADER_SIZE; 332 333 /* TODO: Correct this value for our hw */ 334 /* TODO: define these hard code value */ 335 hw->channel_change_time = 100; 336 hw->max_listen_interval = 10; 337 hw->max_rate_tries = 4; 338 /* hw->max_rates = 1; */ 339 hw->sta_data_size = sizeof(struct rtl_sta_info); 340 341 /* <6> mac address */ 342 if (is_valid_ether_addr(rtlefuse->dev_addr)) { 343 SET_IEEE80211_PERM_ADDR(hw, rtlefuse->dev_addr); 344 } else { 345 u8 rtlmac1[] = { 0x00, 0xe0, 0x4c, 0x81, 0x92, 0x00 }; 346 get_random_bytes((rtlmac1 + (ETH_ALEN - 1)), 1); 347 SET_IEEE80211_PERM_ADDR(hw, rtlmac1); 348 } 349 350} 351 352static void _rtl_init_deferred_work(struct ieee80211_hw *hw) 353{ 354 struct rtl_priv *rtlpriv = rtl_priv(hw); 355 356 /* <1> timer */ 357 init_timer(&rtlpriv->works.watchdog_timer); 358 setup_timer(&rtlpriv->works.watchdog_timer, 359 rtl_watch_dog_timer_callback, (unsigned long)hw); 360 361 /* <2> work queue */ 362 rtlpriv->works.hw = hw; 363 rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0); 364 INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, 365 (void *)rtl_watchdog_wq_callback); 366 INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, 367 (void *)rtl_ips_nic_off_wq_callback); 368 INIT_DELAYED_WORK(&rtlpriv->works.ps_work, 369 (void *)rtl_swlps_wq_callback); 370 INIT_DELAYED_WORK(&rtlpriv->works.ps_rfon_wq, 371 (void *)rtl_swlps_rfon_wq_callback); 372 373} 374 375void rtl_deinit_deferred_work(struct ieee80211_hw *hw) 376{ 377 struct rtl_priv *rtlpriv = rtl_priv(hw); 378 379 del_timer_sync(&rtlpriv->works.watchdog_timer); 380 381 cancel_delayed_work(&rtlpriv->works.watchdog_wq); 382 cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq); 383 cancel_delayed_work(&rtlpriv->works.ps_work); 384 cancel_delayed_work(&rtlpriv->works.ps_rfon_wq); 385} 386 387void rtl_init_rfkill(struct ieee80211_hw *hw) 388{ 389 struct rtl_priv *rtlpriv = rtl_priv(hw); 390 391 bool radio_state; 392 bool blocked; 393 u8 valid = 0; 394 395 /*set init state to on */ 396 rtlpriv->rfkill.rfkill_state = true; 397 wiphy_rfkill_set_hw_state(hw->wiphy, 0); 398 399 radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid); 400 401 if (valid) { 402 pr_info("wireless switch is %s\n", 403 rtlpriv->rfkill.rfkill_state ? "on" : "off"); 404 405 rtlpriv->rfkill.rfkill_state = radio_state; 406 407 blocked = (rtlpriv->rfkill.rfkill_state == 1) ? 0 : 1; 408 wiphy_rfkill_set_hw_state(hw->wiphy, blocked); 409 } 410 411 wiphy_rfkill_start_polling(hw->wiphy); 412} 413EXPORT_SYMBOL(rtl_init_rfkill); 414 415void rtl_deinit_rfkill(struct ieee80211_hw *hw) 416{ 417 wiphy_rfkill_stop_polling(hw->wiphy); 418} 419 420int rtl_init_core(struct ieee80211_hw *hw) 421{ 422 struct rtl_priv *rtlpriv = rtl_priv(hw); 423 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 424 425 /* <1> init mac80211 */ 426 _rtl_init_mac80211(hw); 427 rtlmac->hw = hw; 428 429 /* <2> rate control register */ 430 hw->rate_control_algorithm = "rtl_rc"; 431 432 /* 433 * <3> init CRDA must come after init 434 * mac80211 hw in _rtl_init_mac80211. 435 */ 436 if (rtl_regd_init(hw, rtl_reg_notifier)) { 437 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "REGD init failed\n"); 438 return 1; 439 } else { 440 /* CRDA regd hint must after init CRDA */ 441 if (regulatory_hint(hw->wiphy, rtlpriv->regd.alpha2)) { 442 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 443 "regulatory_hint fail\n"); 444 } 445 } 446 447 /* <4> locks */ 448 mutex_init(&rtlpriv->locks.conf_mutex); 449 mutex_init(&rtlpriv->locks.ps_mutex); 450 spin_lock_init(&rtlpriv->locks.ips_lock); 451 spin_lock_init(&rtlpriv->locks.irq_th_lock); 452 spin_lock_init(&rtlpriv->locks.h2c_lock); 453 spin_lock_init(&rtlpriv->locks.rf_ps_lock); 454 spin_lock_init(&rtlpriv->locks.rf_lock); 455 spin_lock_init(&rtlpriv->locks.waitq_lock); 456 spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); 457 458 rtlmac->link_state = MAC80211_NOLINK; 459 460 /* <5> init deferred work */ 461 _rtl_init_deferred_work(hw); 462 463 return 0; 464} 465 466void rtl_deinit_core(struct ieee80211_hw *hw) 467{ 468} 469 470void rtl_init_rx_config(struct ieee80211_hw *hw) 471{ 472 struct rtl_priv *rtlpriv = rtl_priv(hw); 473 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 474 475 rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_RCR, (u8 *) (&mac->rx_conf)); 476} 477 478/********************************************************* 479 * 480 * tx information functions 481 * 482 *********************************************************/ 483static void _rtl_qurey_shortpreamble_mode(struct ieee80211_hw *hw, 484 struct rtl_tcb_desc *tcb_desc, 485 struct ieee80211_tx_info *info) 486{ 487 struct rtl_priv *rtlpriv = rtl_priv(hw); 488 u8 rate_flag = info->control.rates[0].flags; 489 490 tcb_desc->use_shortpreamble = false; 491 492 /* 1M can only use Long Preamble. 11B spec */ 493 if (tcb_desc->hw_rate == rtlpriv->cfg->maps[RTL_RC_CCK_RATE1M]) 494 return; 495 else if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) 496 tcb_desc->use_shortpreamble = true; 497 498 return; 499} 500 501static void _rtl_query_shortgi(struct ieee80211_hw *hw, 502 struct ieee80211_sta *sta, 503 struct rtl_tcb_desc *tcb_desc, 504 struct ieee80211_tx_info *info) 505{ 506 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 507 u8 rate_flag = info->control.rates[0].flags; 508 u8 sgi_40 = 0, sgi_20 = 0, bw_40 = 0; 509 tcb_desc->use_shortgi = false; 510 511 if (sta == NULL) 512 return; 513 514 sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; 515 sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; 516 517 if (!(sta->ht_cap.ht_supported)) 518 return; 519 520 if (!sgi_40 && !sgi_20) 521 return; 522 523 if (mac->opmode == NL80211_IFTYPE_STATION) 524 bw_40 = mac->bw_40; 525 else if (mac->opmode == NL80211_IFTYPE_AP || 526 mac->opmode == NL80211_IFTYPE_ADHOC) 527 bw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; 528 529 if (bw_40 && sgi_40) 530 tcb_desc->use_shortgi = true; 531 else if ((bw_40 == false) && sgi_20) 532 tcb_desc->use_shortgi = true; 533 534 if (!(rate_flag & IEEE80211_TX_RC_SHORT_GI)) 535 tcb_desc->use_shortgi = false; 536} 537 538static void _rtl_query_protection_mode(struct ieee80211_hw *hw, 539 struct rtl_tcb_desc *tcb_desc, 540 struct ieee80211_tx_info *info) 541{ 542 struct rtl_priv *rtlpriv = rtl_priv(hw); 543 u8 rate_flag = info->control.rates[0].flags; 544 545 /* Common Settings */ 546 tcb_desc->rts_stbc = false; 547 tcb_desc->cts_enable = false; 548 tcb_desc->rts_sc = 0; 549 tcb_desc->rts_bw = false; 550 tcb_desc->rts_use_shortpreamble = false; 551 tcb_desc->rts_use_shortgi = false; 552 553 if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) { 554 /* Use CTS-to-SELF in protection mode. */ 555 tcb_desc->rts_enable = true; 556 tcb_desc->cts_enable = true; 557 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 558 } else if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { 559 /* Use RTS-CTS in protection mode. */ 560 tcb_desc->rts_enable = true; 561 tcb_desc->rts_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE24M]; 562 } 563} 564 565static void _rtl_txrate_selectmode(struct ieee80211_hw *hw, 566 struct ieee80211_sta *sta, 567 struct rtl_tcb_desc *tcb_desc) 568{ 569 struct rtl_priv *rtlpriv = rtl_priv(hw); 570 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 571 struct rtl_sta_info *sta_entry = NULL; 572 u8 ratr_index = 7; 573 574 if (sta) { 575 sta_entry = (struct rtl_sta_info *) sta->drv_priv; 576 ratr_index = sta_entry->ratr_index; 577 } 578 if (!tcb_desc->disable_ratefallback || !tcb_desc->use_driver_rate) { 579 if (mac->opmode == NL80211_IFTYPE_STATION) { 580 tcb_desc->ratr_index = 0; 581 } else if (mac->opmode == NL80211_IFTYPE_ADHOC) { 582 if (tcb_desc->multicast || tcb_desc->broadcast) { 583 tcb_desc->hw_rate = 584 rtlpriv->cfg->maps[RTL_RC_CCK_RATE2M]; 585 tcb_desc->use_driver_rate = 1; 586 } else { 587 /* TODO */ 588 } 589 tcb_desc->ratr_index = ratr_index; 590 } else if (mac->opmode == NL80211_IFTYPE_AP) { 591 tcb_desc->ratr_index = ratr_index; 592 } 593 } 594 595 if (rtlpriv->dm.useramask) { 596 /* TODO we will differentiate adhoc and station futrue */ 597 if (mac->opmode == NL80211_IFTYPE_STATION) { 598 tcb_desc->mac_id = 0; 599 600 if (mac->mode == WIRELESS_MODE_N_24G) 601 tcb_desc->ratr_index = RATR_INX_WIRELESS_NGB; 602 else if (mac->mode == WIRELESS_MODE_N_5G) 603 tcb_desc->ratr_index = RATR_INX_WIRELESS_NG; 604 else if (mac->mode & WIRELESS_MODE_G) 605 tcb_desc->ratr_index = RATR_INX_WIRELESS_GB; 606 else if (mac->mode & WIRELESS_MODE_B) 607 tcb_desc->ratr_index = RATR_INX_WIRELESS_B; 608 else if (mac->mode & WIRELESS_MODE_A) 609 tcb_desc->ratr_index = RATR_INX_WIRELESS_G; 610 } else if (mac->opmode == NL80211_IFTYPE_AP || 611 mac->opmode == NL80211_IFTYPE_ADHOC) { 612 if (NULL != sta) { 613 if (sta->aid > 0) 614 tcb_desc->mac_id = sta->aid + 1; 615 else 616 tcb_desc->mac_id = 1; 617 } else { 618 tcb_desc->mac_id = 0; 619 } 620 } 621 } 622 623} 624 625static void _rtl_query_bandwidth_mode(struct ieee80211_hw *hw, 626 struct ieee80211_sta *sta, 627 struct rtl_tcb_desc *tcb_desc) 628{ 629 struct rtl_priv *rtlpriv = rtl_priv(hw); 630 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 631 632 tcb_desc->packet_bw = false; 633 if (!sta) 634 return; 635 if (mac->opmode == NL80211_IFTYPE_AP || 636 mac->opmode == NL80211_IFTYPE_ADHOC) { 637 if (!(sta->ht_cap.ht_supported) || 638 !(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) 639 return; 640 } else if (mac->opmode == NL80211_IFTYPE_STATION) { 641 if (!mac->bw_40 || !(sta->ht_cap.ht_supported)) 642 return; 643 } 644 if (tcb_desc->multicast || tcb_desc->broadcast) 645 return; 646 647 /*use legency rate, shall use 20MHz */ 648 if (tcb_desc->hw_rate <= rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]) 649 return; 650 651 tcb_desc->packet_bw = true; 652} 653 654static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw) 655{ 656 struct rtl_priv *rtlpriv = rtl_priv(hw); 657 struct rtl_phy *rtlphy = &(rtlpriv->phy); 658 u8 hw_rate; 659 660 if (get_rf_type(rtlphy) == RF_2T2R) 661 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15]; 662 else 663 hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7]; 664 665 return hw_rate; 666} 667 668/* mac80211's rate_idx is like this: 669 * 670 * 2.4G band:rx_status->band == IEEE80211_BAND_2GHZ 671 * 672 * B/G rate: 673 * (rx_status->flag & RX_FLAG_HT) = 0, 674 * DESC92_RATE1M-->DESC92_RATE54M ==> idx is 0-->11, 675 * 676 * N rate: 677 * (rx_status->flag & RX_FLAG_HT) = 1, 678 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 679 * 680 * 5G band:rx_status->band == IEEE80211_BAND_5GHZ 681 * A rate: 682 * (rx_status->flag & RX_FLAG_HT) = 0, 683 * DESC92_RATE6M-->DESC92_RATE54M ==> idx is 0-->7, 684 * 685 * N rate: 686 * (rx_status->flag & RX_FLAG_HT) = 1, 687 * DESC92_RATEMCS0-->DESC92_RATEMCS15 ==> idx is 0-->15 688 */ 689int rtlwifi_rate_mapping(struct ieee80211_hw *hw, 690 bool isht, u8 desc_rate, bool first_ampdu) 691{ 692 int rate_idx; 693 694 if (false == isht) { 695 if (IEEE80211_BAND_2GHZ == hw->conf.channel->band) { 696 switch (desc_rate) { 697 case DESC92_RATE1M: 698 rate_idx = 0; 699 break; 700 case DESC92_RATE2M: 701 rate_idx = 1; 702 break; 703 case DESC92_RATE5_5M: 704 rate_idx = 2; 705 break; 706 case DESC92_RATE11M: 707 rate_idx = 3; 708 break; 709 case DESC92_RATE6M: 710 rate_idx = 4; 711 break; 712 case DESC92_RATE9M: 713 rate_idx = 5; 714 break; 715 case DESC92_RATE12M: 716 rate_idx = 6; 717 break; 718 case DESC92_RATE18M: 719 rate_idx = 7; 720 break; 721 case DESC92_RATE24M: 722 rate_idx = 8; 723 break; 724 case DESC92_RATE36M: 725 rate_idx = 9; 726 break; 727 case DESC92_RATE48M: 728 rate_idx = 10; 729 break; 730 case DESC92_RATE54M: 731 rate_idx = 11; 732 break; 733 default: 734 rate_idx = 0; 735 break; 736 } 737 } else { 738 switch (desc_rate) { 739 case DESC92_RATE6M: 740 rate_idx = 0; 741 break; 742 case DESC92_RATE9M: 743 rate_idx = 1; 744 break; 745 case DESC92_RATE12M: 746 rate_idx = 2; 747 break; 748 case DESC92_RATE18M: 749 rate_idx = 3; 750 break; 751 case DESC92_RATE24M: 752 rate_idx = 4; 753 break; 754 case DESC92_RATE36M: 755 rate_idx = 5; 756 break; 757 case DESC92_RATE48M: 758 rate_idx = 6; 759 break; 760 case DESC92_RATE54M: 761 rate_idx = 7; 762 break; 763 default: 764 rate_idx = 0; 765 break; 766 } 767 } 768 769 } else { 770 771 switch (desc_rate) { 772 case DESC92_RATEMCS0: 773 rate_idx = 0; 774 break; 775 case DESC92_RATEMCS1: 776 rate_idx = 1; 777 break; 778 case DESC92_RATEMCS2: 779 rate_idx = 2; 780 break; 781 case DESC92_RATEMCS3: 782 rate_idx = 3; 783 break; 784 case DESC92_RATEMCS4: 785 rate_idx = 4; 786 break; 787 case DESC92_RATEMCS5: 788 rate_idx = 5; 789 break; 790 case DESC92_RATEMCS6: 791 rate_idx = 6; 792 break; 793 case DESC92_RATEMCS7: 794 rate_idx = 7; 795 break; 796 case DESC92_RATEMCS8: 797 rate_idx = 8; 798 break; 799 case DESC92_RATEMCS9: 800 rate_idx = 9; 801 break; 802 case DESC92_RATEMCS10: 803 rate_idx = 10; 804 break; 805 case DESC92_RATEMCS11: 806 rate_idx = 11; 807 break; 808 case DESC92_RATEMCS12: 809 rate_idx = 12; 810 break; 811 case DESC92_RATEMCS13: 812 rate_idx = 13; 813 break; 814 case DESC92_RATEMCS14: 815 rate_idx = 14; 816 break; 817 case DESC92_RATEMCS15: 818 rate_idx = 15; 819 break; 820 default: 821 rate_idx = 0; 822 break; 823 } 824 } 825 return rate_idx; 826} 827EXPORT_SYMBOL(rtlwifi_rate_mapping); 828 829void rtl_get_tcb_desc(struct ieee80211_hw *hw, 830 struct ieee80211_tx_info *info, 831 struct ieee80211_sta *sta, 832 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc) 833{ 834 struct rtl_priv *rtlpriv = rtl_priv(hw); 835 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 836 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 837 struct ieee80211_rate *txrate; 838 __le16 fc = hdr->frame_control; 839 840 txrate = ieee80211_get_tx_rate(hw, info); 841 if (txrate) 842 tcb_desc->hw_rate = txrate->hw_value; 843 else 844 tcb_desc->hw_rate = 0; 845 846 if (ieee80211_is_data(fc)) { 847 /* 848 *we set data rate INX 0 849 *in rtl_rc.c if skb is special data or 850 *mgt which need low data rate. 851 */ 852 853 /* 854 *So tcb_desc->hw_rate is just used for 855 *special data and mgt frames 856 */ 857 if (info->control.rates[0].idx == 0 || 858 ieee80211_is_nullfunc(fc)) { 859 tcb_desc->use_driver_rate = true; 860 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 861 862 tcb_desc->disable_ratefallback = 1; 863 } else { 864 /* 865 *because hw will nerver use hw_rate 866 *when tcb_desc->use_driver_rate = false 867 *so we never set highest N rate here, 868 *and N rate will all be controlled by FW 869 *when tcb_desc->use_driver_rate = false 870 */ 871 if (sta && (sta->ht_cap.ht_supported)) { 872 tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw); 873 } else { 874 if (rtlmac->mode == WIRELESS_MODE_B) { 875 tcb_desc->hw_rate = 876 rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M]; 877 } else { 878 tcb_desc->hw_rate = 879 rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M]; 880 } 881 } 882 } 883 884 if (is_multicast_ether_addr(ieee80211_get_DA(hdr))) 885 tcb_desc->multicast = 1; 886 else if (is_broadcast_ether_addr(ieee80211_get_DA(hdr))) 887 tcb_desc->broadcast = 1; 888 889 _rtl_txrate_selectmode(hw, sta, tcb_desc); 890 _rtl_query_bandwidth_mode(hw, sta, tcb_desc); 891 _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info); 892 _rtl_query_shortgi(hw, sta, tcb_desc, info); 893 _rtl_query_protection_mode(hw, tcb_desc, info); 894 } else { 895 tcb_desc->use_driver_rate = true; 896 tcb_desc->ratr_index = RATR_INX_WIRELESS_MC; 897 tcb_desc->disable_ratefallback = 1; 898 tcb_desc->mac_id = 0; 899 tcb_desc->packet_bw = false; 900 } 901} 902EXPORT_SYMBOL(rtl_get_tcb_desc); 903 904bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 905{ 906 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 907 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 908 struct rtl_priv *rtlpriv = rtl_priv(hw); 909 __le16 fc = hdr->frame_control; 910 u8 *act = (u8 *) (((u8 *) skb->data + MAC80211_3ADDR_LEN)); 911 u8 category; 912 913 if (!ieee80211_is_action(fc)) 914 return true; 915 916 category = *act; 917 act++; 918 switch (category) { 919 case ACT_CAT_BA: 920 switch (*act) { 921 case ACT_ADDBAREQ: 922 if (mac->act_scanning) 923 return false; 924 925 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 926 "%s ACT_ADDBAREQ From :%pM\n", 927 is_tx ? "Tx" : "Rx", hdr->addr2); 928 break; 929 case ACT_ADDBARSP: 930 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 931 "%s ACT_ADDBARSP From :%pM\n", 932 is_tx ? "Tx" : "Rx", hdr->addr2); 933 break; 934 case ACT_DELBA: 935 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 936 "ACT_ADDBADEL From :%pM\n", hdr->addr2); 937 break; 938 } 939 break; 940 default: 941 break; 942 } 943 944 return true; 945} 946 947/*should call before software enc*/ 948u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) 949{ 950 struct rtl_priv *rtlpriv = rtl_priv(hw); 951 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 952 __le16 fc = rtl_get_fc(skb); 953 u16 ether_type; 954 u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); 955 const struct iphdr *ip; 956 957 if (!ieee80211_is_data(fc)) 958 return false; 959 960 961 ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len + 962 SNAP_SIZE + PROTOC_TYPE_SIZE); 963 ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE); 964 /* ether_type = ntohs(ether_type); */ 965 966 if (ETH_P_IP == ether_type) { 967 if (IPPROTO_UDP == ip->protocol) { 968 struct udphdr *udp = (struct udphdr *)((u8 *) ip + 969 (ip->ihl << 2)); 970 if (((((u8 *) udp)[1] == 68) && 971 (((u8 *) udp)[3] == 67)) || 972 ((((u8 *) udp)[1] == 67) && 973 (((u8 *) udp)[3] == 68))) { 974 /* 975 * 68 : UDP BOOTP client 976 * 67 : UDP BOOTP server 977 */ 978 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), 979 DBG_DMESG, "dhcp %s !!\n", 980 is_tx ? "Tx" : "Rx"); 981 982 if (is_tx) { 983 rtl_lps_leave(hw); 984 ppsc->last_delaylps_stamp_jiffies = 985 jiffies; 986 } 987 988 return true; 989 } 990 } 991 } else if (ETH_P_ARP == ether_type) { 992 if (is_tx) { 993 rtl_lps_leave(hw); 994 ppsc->last_delaylps_stamp_jiffies = jiffies; 995 } 996 997 return true; 998 } else if (ETH_P_PAE == ether_type) { 999 RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, 1000 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx"); 1001 1002 if (is_tx) { 1003 rtl_lps_leave(hw); 1004 ppsc->last_delaylps_stamp_jiffies = jiffies; 1005 } 1006 1007 return true; 1008 } else if (ETH_P_IPV6 == ether_type) { 1009 /* IPv6 */ 1010 return true; 1011 } 1012 1013 return false; 1014} 1015 1016/********************************************************* 1017 * 1018 * functions called by core.c 1019 * 1020 *********************************************************/ 1021int rtl_tx_agg_start(struct ieee80211_hw *hw, 1022 struct ieee80211_sta *sta, u16 tid, u16 *ssn) 1023{ 1024 struct rtl_priv *rtlpriv = rtl_priv(hw); 1025 struct rtl_tid_data *tid_data; 1026 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1027 struct rtl_sta_info *sta_entry = NULL; 1028 1029 if (sta == NULL) 1030 return -EINVAL; 1031 1032 if (unlikely(tid >= MAX_TID_COUNT)) 1033 return -EINVAL; 1034 1035 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1036 if (!sta_entry) 1037 return -ENXIO; 1038 tid_data = &sta_entry->tids[tid]; 1039 1040 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d seq:%d\n", 1041 sta->addr, tid, tid_data->seq_number); 1042 1043 *ssn = tid_data->seq_number; 1044 tid_data->agg.agg_state = RTL_AGG_START; 1045 1046 ieee80211_start_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid); 1047 1048 return 0; 1049} 1050 1051int rtl_tx_agg_stop(struct ieee80211_hw *hw, 1052 struct ieee80211_sta *sta, u16 tid) 1053{ 1054 struct rtl_priv *rtlpriv = rtl_priv(hw); 1055 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1056 struct rtl_sta_info *sta_entry = NULL; 1057 1058 if (sta == NULL) 1059 return -EINVAL; 1060 1061 if (!sta->addr) { 1062 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n"); 1063 return -EINVAL; 1064 } 1065 1066 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n", 1067 sta->addr, tid); 1068 1069 if (unlikely(tid >= MAX_TID_COUNT)) 1070 return -EINVAL; 1071 1072 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1073 sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP; 1074 1075 ieee80211_stop_tx_ba_cb_irqsafe(mac->vif, sta->addr, tid); 1076 1077 return 0; 1078} 1079 1080int rtl_tx_agg_oper(struct ieee80211_hw *hw, 1081 struct ieee80211_sta *sta, u16 tid) 1082{ 1083 struct rtl_priv *rtlpriv = rtl_priv(hw); 1084 struct rtl_sta_info *sta_entry = NULL; 1085 1086 if (sta == NULL) 1087 return -EINVAL; 1088 1089 if (!sta->addr) { 1090 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "ra = NULL\n"); 1091 return -EINVAL; 1092 } 1093 1094 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "on ra = %pM tid = %d\n", 1095 sta->addr, tid); 1096 1097 if (unlikely(tid >= MAX_TID_COUNT)) 1098 return -EINVAL; 1099 1100 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1101 sta_entry->tids[tid].agg.agg_state = RTL_AGG_OPERATIONAL; 1102 1103 return 0; 1104} 1105 1106/********************************************************* 1107 * 1108 * wq & timer callback functions 1109 * 1110 *********************************************************/ 1111void rtl_watchdog_wq_callback(void *data) 1112{ 1113 struct rtl_works *rtlworks = container_of_dwork_rtl(data, 1114 struct rtl_works, 1115 watchdog_wq); 1116 struct ieee80211_hw *hw = rtlworks->hw; 1117 struct rtl_priv *rtlpriv = rtl_priv(hw); 1118 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1119 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1120 bool busytraffic = false; 1121 bool higher_busytraffic = false; 1122 bool higher_busyrxtraffic = false; 1123 u8 idx, tid; 1124 u32 rx_cnt_inp4eriod = 0; 1125 u32 tx_cnt_inp4eriod = 0; 1126 u32 aver_rx_cnt_inperiod = 0; 1127 u32 aver_tx_cnt_inperiod = 0; 1128 u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; 1129 u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; 1130 bool enter_ps = false; 1131 1132 if (is_hal_stop(rtlhal)) 1133 return; 1134 1135 /* <1> Determine if action frame is allowed */ 1136 if (mac->link_state > MAC80211_NOLINK) { 1137 if (mac->cnt_after_linked < 20) 1138 mac->cnt_after_linked++; 1139 } else { 1140 mac->cnt_after_linked = 0; 1141 } 1142 1143 /* 1144 *<2> to check if traffic busy, if 1145 * busytraffic we don't change channel 1146 */ 1147 if (mac->link_state >= MAC80211_LINKED) { 1148 1149 /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ 1150 for (idx = 0; idx <= 2; idx++) { 1151 rtlpriv->link_info.num_rx_in4period[idx] = 1152 rtlpriv->link_info.num_rx_in4period[idx + 1]; 1153 rtlpriv->link_info.num_tx_in4period[idx] = 1154 rtlpriv->link_info.num_tx_in4period[idx + 1]; 1155 } 1156 rtlpriv->link_info.num_rx_in4period[3] = 1157 rtlpriv->link_info.num_rx_inperiod; 1158 rtlpriv->link_info.num_tx_in4period[3] = 1159 rtlpriv->link_info.num_tx_inperiod; 1160 for (idx = 0; idx <= 3; idx++) { 1161 rx_cnt_inp4eriod += 1162 rtlpriv->link_info.num_rx_in4period[idx]; 1163 tx_cnt_inp4eriod += 1164 rtlpriv->link_info.num_tx_in4period[idx]; 1165 } 1166 aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; 1167 aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; 1168 1169 /* (2) check traffic busy */ 1170 if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) 1171 busytraffic = true; 1172 1173 /* Higher Tx/Rx data. */ 1174 if (aver_rx_cnt_inperiod > 4000 || 1175 aver_tx_cnt_inperiod > 4000) { 1176 higher_busytraffic = true; 1177 1178 /* Extremely high Rx data. */ 1179 if (aver_rx_cnt_inperiod > 5000) 1180 higher_busyrxtraffic = true; 1181 } 1182 1183 /* check every tid's tx traffic */ 1184 for (tid = 0; tid <= 7; tid++) { 1185 for (idx = 0; idx <= 2; idx++) 1186 rtlpriv->link_info.tidtx_in4period[tid][idx] = 1187 rtlpriv->link_info.tidtx_in4period[tid] 1188 [idx + 1]; 1189 rtlpriv->link_info.tidtx_in4period[tid][3] = 1190 rtlpriv->link_info.tidtx_inperiod[tid]; 1191 1192 for (idx = 0; idx <= 3; idx++) 1193 tidtx_inp4eriod[tid] += 1194 rtlpriv->link_info.tidtx_in4period[tid][idx]; 1195 aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; 1196 if (aver_tidtx_inperiod[tid] > 5000) 1197 rtlpriv->link_info.higher_busytxtraffic[tid] = 1198 true; 1199 else 1200 rtlpriv->link_info.higher_busytxtraffic[tid] = 1201 false; 1202 } 1203 1204 if (((rtlpriv->link_info.num_rx_inperiod + 1205 rtlpriv->link_info.num_tx_inperiod) > 8) || 1206 (rtlpriv->link_info.num_rx_inperiod > 2)) 1207 enter_ps = false; 1208 else 1209 enter_ps = true; 1210 1211 /* LeisurePS only work in infra mode. */ 1212 if (enter_ps) 1213 rtl_lps_enter(hw); 1214 else 1215 rtl_lps_leave(hw); 1216 } 1217 1218 rtlpriv->link_info.num_rx_inperiod = 0; 1219 rtlpriv->link_info.num_tx_inperiod = 0; 1220 for (tid = 0; tid <= 7; tid++) 1221 rtlpriv->link_info.tidtx_inperiod[tid] = 0; 1222 1223 rtlpriv->link_info.busytraffic = busytraffic; 1224 rtlpriv->link_info.higher_busytraffic = higher_busytraffic; 1225 rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; 1226 1227 /* <3> DM */ 1228 rtlpriv->cfg->ops->dm_watchdog(hw); 1229} 1230 1231void rtl_watch_dog_timer_callback(unsigned long data) 1232{ 1233 struct ieee80211_hw *hw = (struct ieee80211_hw *)data; 1234 struct rtl_priv *rtlpriv = rtl_priv(hw); 1235 1236 queue_delayed_work(rtlpriv->works.rtl_wq, 1237 &rtlpriv->works.watchdog_wq, 0); 1238 1239 mod_timer(&rtlpriv->works.watchdog_timer, 1240 jiffies + MSECS(RTL_WATCH_DOG_TIME)); 1241} 1242 1243/********************************************************* 1244 * 1245 * frame process functions 1246 * 1247 *********************************************************/ 1248u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie) 1249{ 1250 struct ieee80211_mgmt *mgmt = (void *)data; 1251 u8 *pos, *end; 1252 1253 pos = (u8 *)mgmt->u.beacon.variable; 1254 end = data + len; 1255 while (pos < end) { 1256 if (pos + 2 + pos[1] > end) 1257 return NULL; 1258 1259 if (pos[0] == ie) 1260 return pos; 1261 1262 pos += 2 + pos[1]; 1263 } 1264 return NULL; 1265} 1266 1267/* when we use 2 rx ants we send IEEE80211_SMPS_OFF */ 1268/* when we use 1 rx ant we send IEEE80211_SMPS_STATIC */ 1269static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw, 1270 enum ieee80211_smps_mode smps, u8 *da, u8 *bssid) 1271{ 1272 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 1273 struct sk_buff *skb; 1274 struct ieee80211_mgmt *action_frame; 1275 1276 /* 27 = header + category + action + smps mode */ 1277 skb = dev_alloc_skb(27 + hw->extra_tx_headroom); 1278 if (!skb) 1279 return NULL; 1280 1281 skb_reserve(skb, hw->extra_tx_headroom); 1282 action_frame = (void *)skb_put(skb, 27); 1283 memset(action_frame, 0, 27); 1284 memcpy(action_frame->da, da, ETH_ALEN); 1285 memcpy(action_frame->sa, rtlefuse->dev_addr, ETH_ALEN); 1286 memcpy(action_frame->bssid, bssid, ETH_ALEN); 1287 action_frame->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 1288 IEEE80211_STYPE_ACTION); 1289 action_frame->u.action.category = WLAN_CATEGORY_HT; 1290 action_frame->u.action.u.ht_smps.action = WLAN_HT_ACTION_SMPS; 1291 switch (smps) { 1292 case IEEE80211_SMPS_AUTOMATIC:/* 0 */ 1293 case IEEE80211_SMPS_NUM_MODES:/* 4 */ 1294 WARN_ON(1); 1295 case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/ 1296 action_frame->u.action.u.ht_smps.smps_control = 1297 WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */ 1298 break; 1299 case IEEE80211_SMPS_STATIC:/* 2 */ /*MIMO_PS_STATIC*/ 1300 action_frame->u.action.u.ht_smps.smps_control = 1301 WLAN_HT_SMPS_CONTROL_STATIC;/* 1 */ 1302 break; 1303 case IEEE80211_SMPS_DYNAMIC:/* 3 */ /*MIMO_PS_DYNAMIC*/ 1304 action_frame->u.action.u.ht_smps.smps_control = 1305 WLAN_HT_SMPS_CONTROL_DYNAMIC;/* 3 */ 1306 break; 1307 } 1308 1309 return skb; 1310} 1311 1312int rtl_send_smps_action(struct ieee80211_hw *hw, 1313 struct ieee80211_sta *sta, u8 *da, u8 *bssid, 1314 enum ieee80211_smps_mode smps) 1315{ 1316 struct rtl_priv *rtlpriv = rtl_priv(hw); 1317 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1318 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1319 struct sk_buff *skb = rtl_make_smps_action(hw, smps, da, bssid); 1320 struct rtl_tcb_desc tcb_desc; 1321 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 1322 1323 if (rtlpriv->mac80211.act_scanning) 1324 goto err_free; 1325 1326 if (!sta) 1327 goto err_free; 1328 1329 if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON)) 1330 goto err_free; 1331 1332 if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status)) 1333 goto err_free; 1334 1335 /* this is a type = mgmt * stype = action frame */ 1336 if (skb) { 1337 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1338 struct rtl_sta_info *sta_entry = 1339 (struct rtl_sta_info *) sta->drv_priv; 1340 sta_entry->mimo_ps = smps; 1341 rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); 1342 1343 info->control.rates[0].idx = 0; 1344 info->control.sta = sta; 1345 info->band = hw->conf.channel->band; 1346 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc); 1347 } 1348err_free: 1349 return 0; 1350} 1351 1352/********************************************************* 1353 * 1354 * IOT functions 1355 * 1356 *********************************************************/ 1357static bool rtl_chk_vendor_ouisub(struct ieee80211_hw *hw, 1358 struct octet_string vendor_ie) 1359{ 1360 struct rtl_priv *rtlpriv = rtl_priv(hw); 1361 bool matched = false; 1362 static u8 athcap_1[] = { 0x00, 0x03, 0x7F }; 1363 static u8 athcap_2[] = { 0x00, 0x13, 0x74 }; 1364 static u8 broadcap_1[] = { 0x00, 0x10, 0x18 }; 1365 static u8 broadcap_2[] = { 0x00, 0x0a, 0xf7 }; 1366 static u8 broadcap_3[] = { 0x00, 0x05, 0xb5 }; 1367 static u8 racap[] = { 0x00, 0x0c, 0x43 }; 1368 static u8 ciscocap[] = { 0x00, 0x40, 0x96 }; 1369 static u8 marvcap[] = { 0x00, 0x50, 0x43 }; 1370 1371 if (memcmp(vendor_ie.octet, athcap_1, 3) == 0 || 1372 memcmp(vendor_ie.octet, athcap_2, 3) == 0) { 1373 rtlpriv->mac80211.vendor = PEER_ATH; 1374 matched = true; 1375 } else if (memcmp(vendor_ie.octet, broadcap_1, 3) == 0 || 1376 memcmp(vendor_ie.octet, broadcap_2, 3) == 0 || 1377 memcmp(vendor_ie.octet, broadcap_3, 3) == 0) { 1378 rtlpriv->mac80211.vendor = PEER_BROAD; 1379 matched = true; 1380 } else if (memcmp(vendor_ie.octet, racap, 3) == 0) { 1381 rtlpriv->mac80211.vendor = PEER_RAL; 1382 matched = true; 1383 } else if (memcmp(vendor_ie.octet, ciscocap, 3) == 0) { 1384 rtlpriv->mac80211.vendor = PEER_CISCO; 1385 matched = true; 1386 } else if (memcmp(vendor_ie.octet, marvcap, 3) == 0) { 1387 rtlpriv->mac80211.vendor = PEER_MARV; 1388 matched = true; 1389 } 1390 1391 return matched; 1392} 1393 1394static bool rtl_find_221_ie(struct ieee80211_hw *hw, u8 *data, 1395 unsigned int len) 1396{ 1397 struct ieee80211_mgmt *mgmt = (void *)data; 1398 struct octet_string vendor_ie; 1399 u8 *pos, *end; 1400 1401 pos = (u8 *)mgmt->u.beacon.variable; 1402 end = data + len; 1403 while (pos < end) { 1404 if (pos[0] == 221) { 1405 vendor_ie.length = pos[1]; 1406 vendor_ie.octet = &pos[2]; 1407 if (rtl_chk_vendor_ouisub(hw, vendor_ie)) 1408 return true; 1409 } 1410 1411 if (pos + 2 + pos[1] > end) 1412 return false; 1413 1414 pos += 2 + pos[1]; 1415 } 1416 return false; 1417} 1418 1419void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len) 1420{ 1421 struct rtl_priv *rtlpriv = rtl_priv(hw); 1422 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1423 struct ieee80211_hdr *hdr = (void *)data; 1424 u32 vendor = PEER_UNKNOWN; 1425 1426 static u8 ap3_1[3] = { 0x00, 0x14, 0xbf }; 1427 static u8 ap3_2[3] = { 0x00, 0x1a, 0x70 }; 1428 static u8 ap3_3[3] = { 0x00, 0x1d, 0x7e }; 1429 static u8 ap4_1[3] = { 0x00, 0x90, 0xcc }; 1430 static u8 ap4_2[3] = { 0x00, 0x0e, 0x2e }; 1431 static u8 ap4_3[3] = { 0x00, 0x18, 0x02 }; 1432 static u8 ap4_4[3] = { 0x00, 0x17, 0x3f }; 1433 static u8 ap4_5[3] = { 0x00, 0x1c, 0xdf }; 1434 static u8 ap5_1[3] = { 0x00, 0x1c, 0xf0 }; 1435 static u8 ap5_2[3] = { 0x00, 0x21, 0x91 }; 1436 static u8 ap5_3[3] = { 0x00, 0x24, 0x01 }; 1437 static u8 ap5_4[3] = { 0x00, 0x15, 0xe9 }; 1438 static u8 ap5_5[3] = { 0x00, 0x17, 0x9A }; 1439 static u8 ap5_6[3] = { 0x00, 0x18, 0xE7 }; 1440 static u8 ap6_1[3] = { 0x00, 0x17, 0x94 }; 1441 static u8 ap7_1[3] = { 0x00, 0x14, 0xa4 }; 1442 1443 if (mac->opmode != NL80211_IFTYPE_STATION) 1444 return; 1445 1446 if (mac->link_state == MAC80211_NOLINK) { 1447 mac->vendor = PEER_UNKNOWN; 1448 return; 1449 } 1450 1451 if (mac->cnt_after_linked > 2) 1452 return; 1453 1454 /* check if this really is a beacon */ 1455 if (!ieee80211_is_beacon(hdr->frame_control)) 1456 return; 1457 1458 /* min. beacon length + FCS_LEN */ 1459 if (len <= 40 + FCS_LEN) 1460 return; 1461 1462 /* and only beacons from the associated BSSID, please */ 1463 if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid)) 1464 return; 1465 1466 if (rtl_find_221_ie(hw, data, len)) 1467 vendor = mac->vendor; 1468 1469 if ((memcmp(mac->bssid, ap5_1, 3) == 0) || 1470 (memcmp(mac->bssid, ap5_2, 3) == 0) || 1471 (memcmp(mac->bssid, ap5_3, 3) == 0) || 1472 (memcmp(mac->bssid, ap5_4, 3) == 0) || 1473 (memcmp(mac->bssid, ap5_5, 3) == 0) || 1474 (memcmp(mac->bssid, ap5_6, 3) == 0) || 1475 vendor == PEER_ATH) { 1476 vendor = PEER_ATH; 1477 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ath find\n"); 1478 } else if ((memcmp(mac->bssid, ap4_4, 3) == 0) || 1479 (memcmp(mac->bssid, ap4_5, 3) == 0) || 1480 (memcmp(mac->bssid, ap4_1, 3) == 0) || 1481 (memcmp(mac->bssid, ap4_2, 3) == 0) || 1482 (memcmp(mac->bssid, ap4_3, 3) == 0) || 1483 vendor == PEER_RAL) { 1484 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>ral find\n"); 1485 vendor = PEER_RAL; 1486 } else if (memcmp(mac->bssid, ap6_1, 3) == 0 || 1487 vendor == PEER_CISCO) { 1488 vendor = PEER_CISCO; 1489 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>cisco find\n"); 1490 } else if ((memcmp(mac->bssid, ap3_1, 3) == 0) || 1491 (memcmp(mac->bssid, ap3_2, 3) == 0) || 1492 (memcmp(mac->bssid, ap3_3, 3) == 0) || 1493 vendor == PEER_BROAD) { 1494 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>broad find\n"); 1495 vendor = PEER_BROAD; 1496 } else if (memcmp(mac->bssid, ap7_1, 3) == 0 || 1497 vendor == PEER_MARV) { 1498 vendor = PEER_MARV; 1499 RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, "=>marv find\n"); 1500 } 1501 1502 mac->vendor = vendor; 1503} 1504 1505/********************************************************* 1506 * 1507 * sysfs functions 1508 * 1509 *********************************************************/ 1510static ssize_t rtl_show_debug_level(struct device *d, 1511 struct device_attribute *attr, char *buf) 1512{ 1513 struct ieee80211_hw *hw = dev_get_drvdata(d); 1514 struct rtl_priv *rtlpriv = rtl_priv(hw); 1515 1516 return sprintf(buf, "0x%08X\n", rtlpriv->dbg.global_debuglevel); 1517} 1518 1519static ssize_t rtl_store_debug_level(struct device *d, 1520 struct device_attribute *attr, 1521 const char *buf, size_t count) 1522{ 1523 struct ieee80211_hw *hw = dev_get_drvdata(d); 1524 struct rtl_priv *rtlpriv = rtl_priv(hw); 1525 unsigned long val; 1526 int ret; 1527 1528 ret = strict_strtoul(buf, 0, &val); 1529 if (ret) { 1530 printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf); 1531 } else { 1532 rtlpriv->dbg.global_debuglevel = val; 1533 printk(KERN_DEBUG "debuglevel:%x\n", 1534 rtlpriv->dbg.global_debuglevel); 1535 } 1536 1537 return strnlen(buf, count); 1538} 1539 1540static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, 1541 rtl_show_debug_level, rtl_store_debug_level); 1542 1543static struct attribute *rtl_sysfs_entries[] = { 1544 1545 &dev_attr_debug_level.attr, 1546 1547 NULL 1548}; 1549 1550/* 1551 * "name" is folder name witch will be 1552 * put in device directory like : 1553 * sys/devices/pci0000:00/0000:00:1c.4/ 1554 * 0000:06:00.0/rtl_sysfs 1555 */ 1556struct attribute_group rtl_attribute_group = { 1557 .name = "rtlsysfs", 1558 .attrs = rtl_sysfs_entries, 1559}; 1560 1561MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 1562MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 1563MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 1564MODULE_LICENSE("GPL"); 1565MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core"); 1566 1567static int __init rtl_core_module_init(void) 1568{ 1569 if (rtl_rate_control_register()) 1570 pr_err("Unable to register rtl_rc, use default RC !!\n"); 1571 1572 return 0; 1573} 1574 1575static void __exit rtl_core_module_exit(void) 1576{ 1577 /*RC*/ 1578 rtl_rate_control_unregister(); 1579} 1580 1581module_init(rtl_core_module_init); 1582module_exit(rtl_core_module_exit); 1583