drivers/staging/rtl8192e/rtl8192e/rtl_core.c

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * Based on the r8180 driver, which is:
   5  * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of version 2 of the GNU General Public License as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * The full GNU General Public License is included in this distribution in the
  16  * file called LICENSE.
  17  *
  18  * Contact Information:
  19  * wlanfae <wlanfae@realtek.com>
  20 ******************************************************************************/
  21 #include <linux/uaccess.h>
  22 #include <linux/pci.h>
  23 #include <linux/vmalloc.h>
  24 #include <linux/ieee80211.h>
  25 #include "rtl_core.h"
  26 #include "r8192E_phy.h"
  27 #include "r8192E_phyreg.h"
  28 #include "r8190P_rtl8256.h"
  29 #include "r8192E_cmdpkt.h"
  30
  31 #include "rtl_wx.h"
  32 #include "rtl_dm.h"
  33
  34 #include "rtl_pm.h"
  35
  36 int hwwep = 1;
  37 static int channels = 0x3fff;
  38 static char *ifname = "wlan%d";
  39
  40
  41 static struct rtl819x_ops rtl819xp_ops = {
  42         .nic_type                       = NIC_8192E,
  43         .get_eeprom_size                = rtl92e_get_eeprom_size,
  44         .init_adapter_variable          = rtl92e_init_variables,
  45         .initialize_adapter             = rtl92e_start_adapter,
  46         .link_change                    = rtl92e_link_change,
  47         .tx_fill_descriptor             = rtl92e_fill_tx_desc,
  48         .tx_fill_cmd_descriptor         = rtl92e_fill_tx_cmd_desc,
  49         .rx_query_status_descriptor     = rtl92e_get_rx_stats,
  50         .rx_command_packet_handler = NULL,
  51         .stop_adapter                   = rtl92e_stop_adapter,
  52         .update_ratr_table              = rtl92e_update_ratr_table,
  53         .irq_enable                     = rtl92e_enable_irq,
  54         .irq_disable                    = rtl92e_disable_irq,
  55         .irq_clear                      = rtl92e_clear_irq,
  56         .rx_enable                      = rtl92e_enable_rx,
  57         .tx_enable                      = rtl92e_enable_tx,
  58         .interrupt_recognized           = rtl92e_ack_irq,
  59         .TxCheckStuckHandler            = rtl92e_is_tx_stuck,
  60         .RxCheckStuckHandler            = rtl92e_is_rx_stuck,
  61 };
  62
  63 static struct pci_device_id rtl8192_pci_id_tbl[] = {
  64         {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
  65         {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
  66         {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
  67         {}
  68 };
  69
  70 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
  71
  72 static int _rtl92e_pci_probe(struct pci_dev *pdev,
  73                              const struct pci_device_id *id);
  74 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
  75 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
  76
  77 static struct pci_driver rtl8192_pci_driver = {
  78         .name = DRV_NAME,       /* Driver name   */
  79         .id_table = rtl8192_pci_id_tbl, /* PCI_ID table  */
  80         .probe  = _rtl92e_pci_probe,    /* probe fn      */
  81         .remove  = _rtl92e_pci_disconnect,      /* remove fn */
  82         .suspend = rtl92e_suspend,      /* PM suspend fn */
  83         .resume = rtl92e_resume,                 /* PM resume fn  */
  84 };
  85
  86 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
  87 static void _rtl92e_watchdog_wq_cb(void *data);
  88 static void _rtl92e_watchdog_timer_cb(unsigned long data);
  89 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
  90                                    int rate);
  91 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
  92 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
  93 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
  94 static short _rtl92e_pci_initdescring(struct net_device *dev);
  95 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
  96 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
  97 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
  98 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
  99 static int _rtl92e_try_up(struct net_device *dev);
 100 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
 101 static void _rtl92e_restart(void *data);
 102
 103 /****************************************************************************
 104    -----------------------------IO STUFF-------------------------
 105 *****************************************************************************/
 106
 107 u8 rtl92e_readb(struct net_device *dev, int x)
 108 {
 109         return 0xff & readb((u8 __iomem *)dev->mem_start + x);
 110 }
 111
 112 u32 rtl92e_readl(struct net_device *dev, int x)
 113 {
 114         return readl((u8 __iomem *)dev->mem_start + x);
 115 }
 116
 117 u16 rtl92e_readw(struct net_device *dev, int x)
 118 {
 119         return readw((u8 __iomem *)dev->mem_start + x);
 120 }
 121
 122 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
 123 {
 124         writeb(y, (u8 __iomem *)dev->mem_start + x);
 125
 126         udelay(20);
 127 }
 128
 129 void rtl92e_writel(struct net_device *dev, int x, u32 y)
 130 {
 131         writel(y, (u8 __iomem *)dev->mem_start + x);
 132
 133         udelay(20);
 134 }
 135
 136 void rtl92e_writew(struct net_device *dev, int x, u16 y)
 137 {
 138         writew(y, (u8 __iomem *)dev->mem_start + x);
 139
 140         udelay(20);
 141 }
 142
 143 /****************************************************************************
 144    -----------------------------GENERAL FUNCTION-------------------------
 145 *****************************************************************************/
 146 bool rtl92e_set_rf_state(struct net_device *dev,
 147                          enum rt_rf_power_state StateToSet,
 148                          RT_RF_CHANGE_SOURCE ChangeSource)
 149 {
 150         struct r8192_priv *priv = rtllib_priv(dev);
 151         struct rtllib_device *ieee = priv->rtllib;
 152         bool                    bActionAllowed = false;
 153         bool                    bConnectBySSID = false;
 154         enum rt_rf_power_state rtState;
 155         u16                     RFWaitCounter = 0;
 156         unsigned long flag;
 157
 158         RT_TRACE((COMP_PS | COMP_RF),
 159                  "===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
 160
 161         while (true) {
 162                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
 163                 if (priv->RFChangeInProgress) {
 164                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 165                         RT_TRACE((COMP_PS | COMP_RF),
 166                                  "rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
 167                                  StateToSet);
 168
 169                         while (priv->RFChangeInProgress) {
 170                                 RFWaitCounter++;
 171                                 RT_TRACE((COMP_PS | COMP_RF),
 172                                          "rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
 173                                          RFWaitCounter);
 174                                 mdelay(1);
 175
 176                                 if (RFWaitCounter > 100) {
 177                                         netdev_warn(dev,
 178                                                     "%s(): Timeout waiting for RF change.\n",
 179                                                     __func__);
 180                                         return false;
 181                                 }
 182                         }
 183                 } else {
 184                         priv->RFChangeInProgress = true;
 185                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 186                         break;
 187                 }
 188         }
 189
 190         rtState = priv->rtllib->eRFPowerState;
 191
 192         switch (StateToSet) {
 193         case eRfOn:
 194                 priv->rtllib->RfOffReason &= (~ChangeSource);
 195
 196                 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
 197                         priv->bHwRadioOff = false;
 198
 199                 if (!priv->rtllib->RfOffReason) {
 200                         priv->rtllib->RfOffReason = 0;
 201                         bActionAllowed = true;
 202
 203
 204                         if (rtState == eRfOff &&
 205                             ChangeSource >= RF_CHANGE_BY_HW)
 206                                 bConnectBySSID = true;
 207                 } else {
 208                         RT_TRACE((COMP_PS | COMP_RF),
 209                                  "rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
 210                                   priv->rtllib->RfOffReason, ChangeSource);
 211         }
 212
 213                 break;
 214
 215         case eRfOff:
 216
 217                 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
 218                     (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
 219                         if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
 220                             (ChangeSource > RF_CHANGE_BY_IPS)) {
 221                                 if (ieee->state == RTLLIB_LINKED)
 222                                         priv->blinked_ingpio = true;
 223                                 else
 224                                         priv->blinked_ingpio = false;
 225                                 rtllib_MgntDisconnect(priv->rtllib,
 226                                                       WLAN_REASON_DISASSOC_STA_HAS_LEFT);
 227                         }
 228                 }
 229                 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
 230                         priv->bHwRadioOff = true;
 231                 priv->rtllib->RfOffReason |= ChangeSource;
 232                 bActionAllowed = true;
 233                 break;
 234
 235         case eRfSleep:
 236                 priv->rtllib->RfOffReason |= ChangeSource;
 237                 bActionAllowed = true;
 238                 break;
 239
 240         default:
 241                 break;
 242         }
 243
 244         if (bActionAllowed) {
 245                 RT_TRACE((COMP_PS | COMP_RF),
 246                          "rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
 247                          StateToSet, priv->rtllib->RfOffReason);
 248                 PHY_SetRFPowerState(dev, StateToSet);
 249                 if (StateToSet == eRfOn) {
 250
 251                         if (bConnectBySSID && priv->blinked_ingpio) {
 252                                 queue_delayed_work_rsl(ieee->wq,
 253                                          &ieee->associate_procedure_wq, 0);
 254                                 priv->blinked_ingpio = false;
 255                         }
 256                 }
 257         } else {
 258                 RT_TRACE((COMP_PS | COMP_RF),
 259                          "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
 260                          StateToSet, ChangeSource, priv->rtllib->RfOffReason);
 261         }
 262
 263         spin_lock_irqsave(&priv->rf_ps_lock, flag);
 264         priv->RFChangeInProgress = false;
 265         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 266
 267         RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
 268         return bActionAllowed;
 269 }
 270
 271 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
 272 {
 273         struct r8192_priv *priv = rtllib_priv(dev);
 274         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
 275
 276         if (ring->entries - skb_queue_len(&ring->queue) >= 2)
 277                 return 1;
 278         return 0;
 279 }
 280
 281 static void _rtl92e_tx_timeout(struct net_device *dev)
 282 {
 283         struct r8192_priv *priv = rtllib_priv(dev);
 284
 285         schedule_work(&priv->reset_wq);
 286         netdev_info(dev, "TXTIMEOUT");
 287 }
 288
 289 void rtl92e_irq_enable(struct net_device *dev)
 290 {
 291         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
 292
 293         priv->irq_enabled = 1;
 294
 295         priv->ops->irq_enable(dev);
 296 }
 297
 298 void rtl92e_irq_disable(struct net_device *dev)
 299 {
 300         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
 301
 302         priv->ops->irq_disable(dev);
 303
 304         priv->irq_enabled = 0;
 305 }
 306
 307 static void _rtl92e_set_chan(struct net_device *dev, short ch)
 308 {
 309         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
 310
 311         RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
 312         if (priv->chan_forced)
 313                 return;
 314
 315         priv->chan = ch;
 316
 317         if (priv->rf_set_chan)
 318                 priv->rf_set_chan(dev, priv->chan);
 319 }
 320
 321 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
 322 {
 323         struct r8192_priv *priv = rtllib_priv(dev);
 324         struct rtllib_network *net = &priv->rtllib->current_network;
 325         bool            ShortPreamble;
 326
 327         if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 328                 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
 329                         ShortPreamble = true;
 330                         priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
 331                         RT_TRACE(COMP_DBG,
 332                                  "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
 333                                  __func__);
 334                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 335                                         (unsigned char *)&ShortPreamble);
 336                 }
 337         } else {
 338                 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
 339                         ShortPreamble = false;
 340                         priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
 341                         RT_TRACE(COMP_DBG,
 342                                  "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
 343                                  __func__);
 344                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 345                                               (unsigned char *)&ShortPreamble);
 346                 }
 347         }
 348
 349         if (net->mode & (IEEE_G|IEEE_N_24G)) {
 350                 u8      slot_time_val;
 351                 u8      CurSlotTime = priv->slot_time;
 352
 353                 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
 354                    (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
 355                         if (CurSlotTime != SHORT_SLOT_TIME) {
 356                                 slot_time_val = SHORT_SLOT_TIME;
 357                                 priv->rtllib->SetHwRegHandler(dev,
 358                                          HW_VAR_SLOT_TIME, &slot_time_val);
 359                         }
 360                 } else {
 361                         if (CurSlotTime != NON_SHORT_SLOT_TIME) {
 362                                 slot_time_val = NON_SHORT_SLOT_TIME;
 363                                 priv->rtllib->SetHwRegHandler(dev,
 364                                          HW_VAR_SLOT_TIME, &slot_time_val);
 365                         }
 366                 }
 367         }
 368 }
 369
 370 static struct rtllib_qos_parameters def_qos_parameters = {
 371         {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
 372         {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
 373         {2, 2, 2, 2},
 374         {0, 0, 0, 0},
 375         {0, 0, 0, 0}
 376 };
 377
 378 static void _rtl92e_update_beacon(void *data)
 379 {
 380         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 381                                   update_beacon_wq.work);
 382         struct net_device *dev = priv->rtllib->dev;
 383         struct rtllib_device *ieee = priv->rtllib;
 384         struct rtllib_network *net = &ieee->current_network;
 385
 386         if (ieee->pHTInfo->bCurrentHTSupport)
 387                 HT_update_self_and_peer_setting(ieee, net);
 388         ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
 389                  net->bssht.bdRT2RTLongSlotTime;
 390         ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
 391         _rtl92e_update_cap(dev, net->capability);
 392 }
 393
 394 static void _rtl92e_qos_activate(void *data)
 395 {
 396         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 397                                   qos_activate);
 398         struct net_device *dev = priv->rtllib->dev;
 399         int i;
 400
 401         mutex_lock(&priv->mutex);
 402         if (priv->rtllib->state != RTLLIB_LINKED)
 403                 goto success;
 404         RT_TRACE(COMP_QOS,
 405                  "qos active process with associate response received\n");
 406
 407         for (i = 0; i <  QOS_QUEUE_NUM; i++)
 408                 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
 409
 410
 411 success:
 412         mutex_unlock(&priv->mutex);
 413 }
 414
 415 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
 416                                              int active_network,
 417                                              struct rtllib_network *network)
 418 {
 419         int ret = 0;
 420         u32 size = sizeof(struct rtllib_qos_parameters);
 421
 422         if (priv->rtllib->state != RTLLIB_LINKED)
 423                 return ret;
 424
 425         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 426                 return ret;
 427
 428         if (network->flags & NETWORK_HAS_QOS_MASK) {
 429                 if (active_network &&
 430                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
 431                         network->qos_data.active = network->qos_data.supported;
 432
 433                 if ((network->qos_data.active == 1) && (active_network == 1) &&
 434                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
 435                                 (network->qos_data.old_param_count !=
 436                                 network->qos_data.param_count)) {
 437                         network->qos_data.old_param_count =
 438                                 network->qos_data.param_count;
 439         priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 440                         queue_work_rsl(priv->priv_wq, &priv->qos_activate);
 441                         RT_TRACE(COMP_QOS,
 442                                  "QoS parameters change call qos_activate\n");
 443                 }
 444         } else {
 445                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 446                        &def_qos_parameters, size);
 447
 448                 if ((network->qos_data.active == 1) && (active_network == 1)) {
 449                         queue_work_rsl(priv->priv_wq, &priv->qos_activate);
 450                         RT_TRACE(COMP_QOS,
 451                                  "QoS was disabled call qos_activate\n");
 452                 }
 453                 network->qos_data.active = 0;
 454                 network->qos_data.supported = 0;
 455         }
 456
 457         return 0;
 458 }
 459
 460 static int _rtl92e_handle_beacon(struct net_device *dev,
 461                                  struct rtllib_beacon *beacon,
 462                                  struct rtllib_network *network)
 463 {
 464         struct r8192_priv *priv = rtllib_priv(dev);
 465
 466         _rtl92e_qos_handle_probe_response(priv, 1, network);
 467
 468         queue_delayed_work_rsl(priv->priv_wq, &priv->update_beacon_wq, 0);
 469         return 0;
 470
 471 }
 472
 473 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
 474                                   struct rtllib_network *network)
 475 {
 476         unsigned long flags;
 477         u32 size = sizeof(struct rtllib_qos_parameters);
 478         int set_qos_param = 0;
 479
 480         if ((priv == NULL) || (network == NULL))
 481                 return 0;
 482
 483         if (priv->rtllib->state != RTLLIB_LINKED)
 484                 return 0;
 485
 486         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 487                 return 0;
 488
 489         spin_lock_irqsave(&priv->rtllib->lock, flags);
 490         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
 491                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 492                        &network->qos_data.parameters,
 493                        sizeof(struct rtllib_qos_parameters));
 494                 priv->rtllib->current_network.qos_data.active = 1;
 495                 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 496                 set_qos_param = 1;
 497                 priv->rtllib->current_network.qos_data.old_param_count =
 498                         priv->rtllib->current_network.qos_data.param_count;
 499                 priv->rtllib->current_network.qos_data.param_count =
 500                         network->qos_data.param_count;
 501         } else {
 502                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 503                 &def_qos_parameters, size);
 504                 priv->rtllib->current_network.qos_data.active = 0;
 505                 priv->rtllib->current_network.qos_data.supported = 0;
 506                 set_qos_param = 1;
 507         }
 508
 509         spin_unlock_irqrestore(&priv->rtllib->lock, flags);
 510
 511         RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
 512                  network->flags, priv->rtllib->current_network.qos_data.active);
 513         if (set_qos_param == 1) {
 514                 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
 515                 queue_work_rsl(priv->priv_wq, &priv->qos_activate);
 516         }
 517         return 0;
 518 }
 519
 520 static int _rtl92e_handle_assoc_response(struct net_device *dev,
 521                                  struct rtllib_assoc_response_frame *resp,
 522                                  struct rtllib_network *network)
 523 {
 524         struct r8192_priv *priv = rtllib_priv(dev);
 525
 526         _rtl92e_qos_assoc_resp(priv, network);
 527         return 0;
 528 }
 529
 530 static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
 531 {
 532         struct net_device *dev = priv->rtllib->dev;
 533         struct sk_buff *pskb = NULL, *pnewskb = NULL;
 534         struct cb_desc *tcb_desc = NULL;
 535         struct rtl8192_tx_ring *ring = NULL;
 536         struct tx_desc *pdesc = NULL;
 537
 538         ring = &priv->tx_ring[BEACON_QUEUE];
 539         pskb = __skb_dequeue(&ring->queue);
 540         kfree_skb(pskb);
 541
 542         pnewskb = rtllib_get_beacon(priv->rtllib);
 543         if (!pnewskb)
 544                 return;
 545
 546         tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
 547         tcb_desc->queue_index = BEACON_QUEUE;
 548         tcb_desc->data_rate = 2;
 549         tcb_desc->RATRIndex = 7;
 550         tcb_desc->bTxDisableRateFallBack = 1;
 551         tcb_desc->bTxUseDriverAssingedRate = 1;
 552         skb_push(pnewskb, priv->rtllib->tx_headroom);
 553
 554         pdesc = &ring->desc[0];
 555         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
 556         __skb_queue_tail(&ring->queue, pnewskb);
 557         pdesc->OWN = 1;
 558 }
 559
 560 static void _rtl92e_stop_beacon(struct net_device *dev)
 561 {
 562 }
 563
 564 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
 565 {
 566         struct r8192_priv *priv = rtllib_priv(dev);
 567         struct rtllib_network *net;
 568         u8 i = 0, basic_rate = 0;
 569
 570         net = &priv->rtllib->current_network;
 571
 572         for (i = 0; i < net->rates_len; i++) {
 573                 basic_rate = net->rates[i] & 0x7f;
 574                 switch (basic_rate) {
 575                 case MGN_1M:
 576                         *rate_config |= RRSR_1M;
 577                         break;
 578                 case MGN_2M:
 579                         *rate_config |= RRSR_2M;
 580                         break;
 581                 case MGN_5_5M:
 582                         *rate_config |= RRSR_5_5M;
 583                         break;
 584                 case MGN_11M:
 585                         *rate_config |= RRSR_11M;
 586                         break;
 587                 case MGN_6M:
 588                         *rate_config |= RRSR_6M;
 589                         break;
 590                 case MGN_9M:
 591                         *rate_config |= RRSR_9M;
 592                         break;
 593                 case MGN_12M:
 594                         *rate_config |= RRSR_12M;
 595                         break;
 596                 case MGN_18M:
 597                         *rate_config |= RRSR_18M;
 598                         break;
 599                 case MGN_24M:
 600                         *rate_config |= RRSR_24M;
 601                         break;
 602                 case MGN_36M:
 603                         *rate_config |= RRSR_36M;
 604                         break;
 605                 case MGN_48M:
 606                         *rate_config |= RRSR_48M;
 607                         break;
 608                 case MGN_54M:
 609                         *rate_config |= RRSR_54M;
 610                         break;
 611                 }
 612         }
 613
 614         for (i = 0; i < net->rates_ex_len; i++) {
 615                 basic_rate = net->rates_ex[i] & 0x7f;
 616                 switch (basic_rate) {
 617                 case MGN_1M:
 618                         *rate_config |= RRSR_1M;
 619                         break;
 620                 case MGN_2M:
 621                         *rate_config |= RRSR_2M;
 622                         break;
 623                 case MGN_5_5M:
 624                         *rate_config |= RRSR_5_5M;
 625                         break;
 626                 case MGN_11M:
 627                         *rate_config |= RRSR_11M;
 628                         break;
 629                 case MGN_6M:
 630                         *rate_config |= RRSR_6M;
 631                         break;
 632                 case MGN_9M:
 633                         *rate_config |= RRSR_9M;
 634                         break;
 635                 case MGN_12M:
 636                         *rate_config |= RRSR_12M;
 637                         break;
 638                 case MGN_18M:
 639                         *rate_config |= RRSR_18M;
 640                         break;
 641                 case MGN_24M:
 642                         *rate_config |= RRSR_24M;
 643                         break;
 644                 case MGN_36M:
 645                         *rate_config |= RRSR_36M;
 646                         break;
 647                 case MGN_48M:
 648                         *rate_config |= RRSR_48M;
 649                         break;
 650                 case MGN_54M:
 651                         *rate_config |= RRSR_54M;
 652                         break;
 653                 }
 654         }
 655 }
 656
 657 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
 658 {
 659         struct rtllib_device *ieee = priv->rtllib;
 660
 661         if (ieee->mode == WIRELESS_MODE_N_24G ||
 662             ieee->mode == WIRELESS_MODE_N_5G) {
 663                 memcpy(ieee->Regdot11HTOperationalRateSet,
 664                        ieee->RegHTSuppRateSet, 16);
 665                 memcpy(ieee->Regdot11TxHTOperationalRateSet,
 666                        ieee->RegHTSuppRateSet, 16);
 667
 668         } else {
 669                 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
 670         }
 671 }
 672
 673 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
 674 {
 675         struct r8192_priv *priv = rtllib_priv(dev);
 676         u8 ret = 0;
 677
 678         switch (priv->rf_chip) {
 679         case RF_8225:
 680         case RF_8256:
 681         case RF_6052:
 682         case RF_PSEUDO_11N:
 683                 ret = (WIRELESS_MODE_N_24G|WIRELESS_MODE_G | WIRELESS_MODE_B);
 684                 break;
 685         case RF_8258:
 686                 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
 687                 break;
 688         default:
 689                 ret = WIRELESS_MODE_B;
 690                 break;
 691         }
 692         return ret;
 693 }
 694
 695 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
 696 {
 697         struct r8192_priv *priv = rtllib_priv(dev);
 698         u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
 699
 700         if ((wireless_mode == WIRELESS_MODE_AUTO) ||
 701             ((wireless_mode & bSupportMode) == 0)) {
 702                 if (bSupportMode & WIRELESS_MODE_N_24G) {
 703                         wireless_mode = WIRELESS_MODE_N_24G;
 704                 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
 705                         wireless_mode = WIRELESS_MODE_N_5G;
 706                 } else if ((bSupportMode & WIRELESS_MODE_A)) {
 707                         wireless_mode = WIRELESS_MODE_A;
 708                 } else if ((bSupportMode & WIRELESS_MODE_G)) {
 709                         wireless_mode = WIRELESS_MODE_G;
 710                 } else if ((bSupportMode & WIRELESS_MODE_B)) {
 711                         wireless_mode = WIRELESS_MODE_B;
 712                 } else {
 713                         netdev_info(dev,
 714                                     "%s(): Unsupported mode requested. Fallback to 802.11b\n",
 715                                     __func__);
 716                         wireless_mode = WIRELESS_MODE_B;
 717                 }
 718         }
 719
 720         if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
 721             (WIRELESS_MODE_G | WIRELESS_MODE_B))
 722                 wireless_mode = WIRELESS_MODE_G;
 723
 724         priv->rtllib->mode = wireless_mode;
 725
 726         if ((wireless_mode == WIRELESS_MODE_N_24G) ||
 727             (wireless_mode == WIRELESS_MODE_N_5G)) {
 728                 priv->rtllib->pHTInfo->bEnableHT = 1;
 729         RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
 730                  __func__, wireless_mode);
 731         } else {
 732                 priv->rtllib->pHTInfo->bEnableHT = 0;
 733                 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
 734                          __func__, wireless_mode);
 735         }
 736
 737         RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
 738         _rtl92e_refresh_support_rate(priv);
 739 }
 740
 741 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
 742 {
 743         struct r8192_priv *priv = rtllib_priv(dev);
 744         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 745                                         (&(priv->rtllib->PowerSaveControl));
 746         bool init_status = true;
 747
 748         priv->bDriverIsGoingToUnload = false;
 749         priv->bdisable_nic = false;
 750
 751         priv->up = 1;
 752         priv->rtllib->ieee_up = 1;
 753
 754         priv->up_first_time = 0;
 755         RT_TRACE(COMP_INIT, "Bringing up iface");
 756         priv->bfirst_init = true;
 757         init_status = priv->ops->initialize_adapter(dev);
 758         if (!init_status) {
 759                 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
 760                 priv->bfirst_init = false;
 761                 return -1;
 762         }
 763
 764         RT_TRACE(COMP_INIT, "start adapter finished\n");
 765         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
 766         priv->bfirst_init = false;
 767
 768         if (priv->polling_timer_on == 0)
 769                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
 770
 771         if (priv->rtllib->state != RTLLIB_LINKED)
 772                 rtllib_softmac_start_protocol(priv->rtllib, 0);
 773         rtllib_reset_queue(priv->rtllib);
 774         _rtl92e_watchdog_timer_cb((unsigned long)dev);
 775
 776         if (!netif_queue_stopped(dev))
 777                 netif_start_queue(dev);
 778         else
 779                 netif_wake_queue(dev);
 780
 781         return 0;
 782 }
 783
 784 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
 785 {
 786         struct r8192_priv *priv = rtllib_priv(dev);
 787         unsigned long flags = 0;
 788         u8 RFInProgressTimeOut = 0;
 789
 790         if (priv->up == 0)
 791                 return -1;
 792
 793         if (priv->rtllib->rtllib_ips_leave != NULL)
 794                 priv->rtllib->rtllib_ips_leave(dev);
 795
 796         if (priv->rtllib->state == RTLLIB_LINKED)
 797                 rtl92e_leisure_ps_leave(dev);
 798
 799         priv->bDriverIsGoingToUnload = true;
 800         priv->up = 0;
 801         priv->rtllib->ieee_up = 0;
 802         priv->bfirst_after_down = true;
 803         RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
 804         if (!netif_queue_stopped(dev))
 805                 netif_stop_queue(dev);
 806
 807         priv->rtllib->wpa_ie_len = 0;
 808         kfree(priv->rtllib->wpa_ie);
 809         priv->rtllib->wpa_ie = NULL;
 810         rtl92e_cam_reset(dev);
 811         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 812         rtl92e_irq_disable(dev);
 813
 814         del_timer_sync(&priv->watch_dog_timer);
 815         _rtl92e_cancel_deferred_work(priv);
 816         cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
 817
 818         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
 819         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 820         while (priv->RFChangeInProgress) {
 821                 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 822                 if (RFInProgressTimeOut > 100) {
 823                         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 824                         break;
 825                 }
 826                 RT_TRACE(COMP_DBG,
 827                          "===>%s():RF is in progress, need to wait until rf change is done.\n",
 828                          __func__);
 829                 mdelay(1);
 830                 RFInProgressTimeOut++;
 831                 spin_lock_irqsave(&priv->rf_ps_lock, flags);
 832         }
 833         priv->RFChangeInProgress = true;
 834         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 835         priv->ops->stop_adapter(dev, false);
 836         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 837         priv->RFChangeInProgress = false;
 838         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 839         udelay(100);
 840         memset(&priv->rtllib->current_network, 0,
 841                offsetof(struct rtllib_network, list));
 842         RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
 843
 844         return 0;
 845 }
 846
 847 static void _rtl92e_init_priv_handler(struct net_device *dev)
 848 {
 849         struct r8192_priv *priv = rtllib_priv(dev);
 850
 851         priv->rtllib->softmac_hard_start_xmit   = _rtl92e_hard_start_xmit;
 852         priv->rtllib->set_chan                  = _rtl92e_set_chan;
 853         priv->rtllib->link_change               = priv->ops->link_change;
 854         priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
 855         priv->rtllib->check_nic_enough_desc     = _rtl92e_check_nic_enough_desc;
 856         priv->rtllib->handle_assoc_response     = _rtl92e_handle_assoc_response;
 857         priv->rtllib->handle_beacon             = _rtl92e_handle_beacon;
 858         priv->rtllib->SetWirelessMode           = rtl92e_set_wireless_mode;
 859         priv->rtllib->LeisurePSLeave            = rtl92e_leisure_ps_leave;
 860         priv->rtllib->SetBWModeHandler          = rtl92e_set_bw_mode;
 861         priv->rf_set_chan                       = rtl92e_set_channel;
 862
 863         priv->rtllib->start_send_beacons = rtl92e_start_beacon;
 864         priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
 865
 866         priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
 867         priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
 868         priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
 869
 870         priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
 871         priv->rtllib->GetHalfNmodeSupportByAPsHandler =
 872                                                 rtl92e_is_halfn_supported_by_ap;
 873
 874         priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
 875         priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
 876         priv->rtllib->SetFwCmdHandler = NULL;
 877         priv->rtllib->InitialGainHandler = rtl92e_init_gain;
 878         priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
 879         priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
 880
 881         priv->rtllib->LedControlHandler = NULL;
 882         priv->rtllib->UpdateBeaconInterruptHandler = NULL;
 883
 884         priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
 885 }
 886
 887 static void _rtl92e_init_priv_constant(struct net_device *dev)
 888 {
 889         struct r8192_priv *priv = rtllib_priv(dev);
 890         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 891                                         &(priv->rtllib->PowerSaveControl);
 892
 893         pPSC->RegMaxLPSAwakeIntvl = 5;
 894 }
 895
 896
 897 static void _rtl92e_init_priv_variable(struct net_device *dev)
 898 {
 899         struct r8192_priv *priv = rtllib_priv(dev);
 900         u8 i;
 901
 902         priv->AcmMethod = eAcmWay2_SW;
 903         priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 904         priv->rtllib->status = 0;
 905         priv->polling_timer_on = 0;
 906         priv->up_first_time = 1;
 907         priv->blinked_ingpio = false;
 908         priv->bDriverIsGoingToUnload = false;
 909         priv->being_init_adapter = false;
 910         priv->initialized_at_probe = false;
 911         priv->bdisable_nic = false;
 912         priv->bfirst_init = false;
 913         priv->txringcount = 64;
 914         priv->rxbuffersize = 9100;
 915         priv->rxringcount = MAX_RX_COUNT;
 916         priv->irq_enabled = 0;
 917         priv->chan = 1;
 918         priv->RegChannelPlan = 0xf;
 919         priv->rtllib->mode = WIRELESS_MODE_AUTO;
 920         priv->rtllib->iw_mode = IW_MODE_INFRA;
 921         priv->rtllib->bNetPromiscuousMode = false;
 922         priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
 923         priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
 924                                                                  false;
 925         priv->rtllib->ieee_up = 0;
 926         priv->retry_rts = DEFAULT_RETRY_RTS;
 927         priv->retry_data = DEFAULT_RETRY_DATA;
 928         priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
 929         priv->rtllib->rate = 110;
 930         priv->rtllib->short_slot = 1;
 931         priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
 932         priv->bcck_in_ch14 = false;
 933         priv->bfsync_processing  = false;
 934         priv->CCKPresentAttentuation = 0;
 935         priv->rfa_txpowertrackingindex = 0;
 936         priv->rfc_txpowertrackingindex = 0;
 937         priv->CckPwEnl = 6;
 938         priv->ScanDelay = 50;
 939         priv->ResetProgress = RESET_TYPE_NORESET;
 940         priv->bForcedSilentReset = false;
 941         priv->bDisableNormalResetCheck = false;
 942         priv->force_reset = false;
 943         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 944
 945         memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
 946         priv->RxCounter = 0;
 947         priv->rtllib->wx_set_enc = 0;
 948         priv->bHwRadioOff = false;
 949         priv->RegRfOff = false;
 950         priv->isRFOff = false;
 951         priv->bInPowerSaveMode = false;
 952         priv->rtllib->RfOffReason = 0;
 953         priv->RFChangeInProgress = false;
 954         priv->bHwRfOffAction = 0;
 955         priv->SetRFPowerStateInProgress = false;
 956         priv->rtllib->PowerSaveControl.bInactivePs = true;
 957         priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
 958         priv->rtllib->PowerSaveControl.bLeisurePs = true;
 959         priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
 960         priv->rtllib->LPSDelayCnt = 0;
 961         priv->rtllib->sta_sleep = LPS_IS_WAKE;
 962         priv->rtllib->eRFPowerState = eRfOn;
 963
 964         priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
 965         priv->rtllib->iw_mode = IW_MODE_INFRA;
 966         priv->rtllib->active_scan = 1;
 967         priv->rtllib->be_scan_inprogress = false;
 968         priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
 969                                    RTLLIB_OFDM_MODULATION;
 970         priv->rtllib->host_encrypt = 1;
 971         priv->rtllib->host_decrypt = 1;
 972
 973         priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
 974
 975         priv->card_type = PCI;
 976
 977         priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
 978         if (!priv->pFirmware)
 979                 netdev_err(dev,
 980                            "rtl8192e: Unable to allocate space for firmware\n");
 981
 982         skb_queue_head_init(&priv->skb_queue);
 983
 984         for (i = 0; i < MAX_QUEUE_SIZE; i++)
 985                 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
 986         for (i = 0; i < MAX_QUEUE_SIZE; i++)
 987                 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
 988 }
 989
 990 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
 991 {
 992         spin_lock_init(&priv->tx_lock);
 993         spin_lock_init(&priv->irq_th_lock);
 994         spin_lock_init(&priv->rf_ps_lock);
 995         spin_lock_init(&priv->ps_lock);
 996         sema_init(&priv->wx_sem, 1);
 997         sema_init(&priv->rf_sem, 1);
 998         mutex_init(&priv->mutex);
 999 }
1000
1001 static void _rtl92e_init_priv_task(struct net_device *dev)
1002 {
1003         struct r8192_priv *priv = rtllib_priv(dev);
1004
1005         priv->priv_wq = create_workqueue(DRV_NAME);
1006         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1007         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1008                       dev);
1009         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1010                               (void *)_rtl92e_watchdog_wq_cb, dev);
1011         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1012                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
1013         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1014                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1015         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1016                               (void *)_rtl92e_update_beacon, dev);
1017         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1018         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1019                               (void *) rtl92e_hw_wakeup_wq, dev);
1020         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1021                               (void *) rtl92e_hw_sleep_wq, dev);
1022         tasklet_init(&priv->irq_rx_tasklet,
1023                      (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1024                      (unsigned long)priv);
1025         tasklet_init(&priv->irq_tx_tasklet,
1026                      (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1027                      (unsigned long)priv);
1028         tasklet_init(&priv->irq_prepare_beacon_tasklet,
1029                      (void(*)(unsigned long))_rtl92e_prepare_beacon,
1030                      (unsigned long)priv);
1031 }
1032
1033 static short _rtl92e_get_channel_map(struct net_device *dev)
1034 {
1035         int i;
1036
1037         struct r8192_priv *priv = rtllib_priv(dev);
1038
1039         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
1040                         && (priv->rf_chip != RF_6052)) {
1041                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1042                            __func__);
1043                 return -1;
1044         }
1045
1046         if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1047                 netdev_info(dev,
1048                             "rtl819x_init:Error channel plan! Set to default.\n");
1049                 priv->ChannelPlan = COUNTRY_CODE_FCC;
1050         }
1051         RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1052         dot11d_init(priv->rtllib);
1053         Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1054         for (i = 1; i <= 11; i++)
1055                 (priv->rtllib->active_channel_map)[i] = 1;
1056         (priv->rtllib->active_channel_map)[12] = 2;
1057         (priv->rtllib->active_channel_map)[13] = 2;
1058
1059         return 0;
1060 }
1061
1062 static short _rtl92e_init(struct net_device *dev)
1063 {
1064         struct r8192_priv *priv = rtllib_priv(dev);
1065
1066         memset(&(priv->stats), 0, sizeof(struct rt_stats));
1067
1068         _rtl92e_init_priv_handler(dev);
1069         _rtl92e_init_priv_constant(dev);
1070         _rtl92e_init_priv_variable(dev);
1071         _rtl92e_init_priv_lock(priv);
1072         _rtl92e_init_priv_task(dev);
1073         priv->ops->get_eeprom_size(dev);
1074         priv->ops->init_adapter_variable(dev);
1075         _rtl92e_get_channel_map(dev);
1076
1077         rtl92e_dm_init(dev);
1078
1079         setup_timer(&priv->watch_dog_timer,
1080                     _rtl92e_watchdog_timer_cb,
1081                     (unsigned long) dev);
1082
1083         setup_timer(&priv->gpio_polling_timer,
1084                     rtl92e_check_rfctrl_gpio_timer,
1085                     (unsigned long)dev);
1086
1087         rtl92e_irq_disable(dev);
1088         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1089                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1090                 return -1;
1091         }
1092
1093         priv->irq = dev->irq;
1094         RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1095
1096         if (_rtl92e_pci_initdescring(dev) != 0) {
1097                 netdev_err(dev, "Endopoints initialization failed");
1098                 free_irq(dev->irq, dev);
1099                 return -1;
1100         }
1101
1102         return 0;
1103 }
1104
1105 /***************************************************************************
1106         -------------------------------WATCHDOG STUFF---------------------------
1107 ***************************************************************************/
1108 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1109 {
1110         int i = 0;
1111         struct r8192_priv *priv = rtllib_priv(dev);
1112
1113         for (i = 0; i <= MGNT_QUEUE; i++) {
1114                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1115                         continue;
1116                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1117                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1118                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1119                         return 0;
1120                 }
1121         }
1122         return 1;
1123 }
1124
1125 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1126 {
1127         struct r8192_priv *priv = rtllib_priv(dev);
1128         u8      QueueID;
1129         bool    bCheckFwTxCnt = false;
1130         struct rtl8192_tx_ring  *ring = NULL;
1131         struct sk_buff *skb = NULL;
1132         struct cb_desc *tcb_desc = NULL;
1133         unsigned long flags = 0;
1134
1135         switch (priv->rtllib->ps) {
1136         case RTLLIB_PS_DISABLED:
1137                 break;
1138         case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
1139                 break;
1140         default:
1141                 break;
1142         }
1143         spin_lock_irqsave(&priv->irq_th_lock, flags);
1144         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1145                 if (QueueID == TXCMD_QUEUE)
1146                         continue;
1147
1148                 if (QueueID == BEACON_QUEUE)
1149                         continue;
1150
1151                 ring = &priv->tx_ring[QueueID];
1152
1153                 if (skb_queue_len(&ring->queue) == 0) {
1154                         continue;
1155                 } else {
1156                         skb = (&ring->queue)->next;
1157                         tcb_desc = (struct cb_desc *)(skb->cb +
1158                                     MAX_DEV_ADDR_SIZE);
1159                         tcb_desc->nStuckCount++;
1160                         bCheckFwTxCnt = true;
1161                         if (tcb_desc->nStuckCount > 1)
1162                                 netdev_info(dev,
1163                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1164                                             __func__, QueueID,
1165                                             tcb_desc->nStuckCount);
1166                 }
1167         }
1168         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1169
1170         if (bCheckFwTxCnt) {
1171                 if (priv->ops->TxCheckStuckHandler(dev)) {
1172                         RT_TRACE(COMP_RESET,
1173                                  "TxCheckStuck(): Fw indicates no Tx condition!\n");
1174                         return RESET_TYPE_SILENT;
1175                 }
1176         }
1177
1178         return RESET_TYPE_NORESET;
1179 }
1180
1181 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1182 {
1183         struct r8192_priv *priv = rtllib_priv(dev);
1184
1185         if (priv->ops->RxCheckStuckHandler(dev)) {
1186                 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1187                 return RESET_TYPE_SILENT;
1188         }
1189
1190         return RESET_TYPE_NORESET;
1191 }
1192
1193 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1194 {
1195         struct r8192_priv *priv = rtllib_priv(dev);
1196         enum reset_type TxResetType = RESET_TYPE_NORESET;
1197         enum reset_type RxResetType = RESET_TYPE_NORESET;
1198         enum rt_rf_power_state rfState;
1199
1200         rfState = priv->rtllib->eRFPowerState;
1201
1202         if (rfState == eRfOn)
1203                 TxResetType = _rtl92e_tx_check_stuck(dev);
1204
1205         if (rfState == eRfOn &&
1206             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1207             (priv->rtllib->state == RTLLIB_LINKED))
1208                 RxResetType = _rtl92e_rx_check_stuck(dev);
1209
1210         if (TxResetType == RESET_TYPE_NORMAL ||
1211             RxResetType == RESET_TYPE_NORMAL) {
1212                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1213                             __func__, TxResetType, RxResetType);
1214                 return RESET_TYPE_NORMAL;
1215         } else if (TxResetType == RESET_TYPE_SILENT ||
1216                    RxResetType == RESET_TYPE_SILENT) {
1217                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1218                             __func__, TxResetType, RxResetType);
1219                 return RESET_TYPE_SILENT;
1220         } else {
1221                 return RESET_TYPE_NORESET;
1222         }
1223
1224 }
1225
1226 static void _rtl92e_if_silent_reset(struct net_device *dev)
1227 {
1228         struct r8192_priv *priv = rtllib_priv(dev);
1229         u8      reset_times = 0;
1230         int reset_status = 0;
1231         struct rtllib_device *ieee = priv->rtllib;
1232         unsigned long flag;
1233
1234         if (priv->ResetProgress == RESET_TYPE_NORESET) {
1235
1236                 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1237
1238                 priv->ResetProgress = RESET_TYPE_SILENT;
1239
1240                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1241                 if (priv->RFChangeInProgress) {
1242                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1243                         goto END;
1244                 }
1245                 priv->RFChangeInProgress = true;
1246                 priv->bResetInProgress = true;
1247                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1248
1249 RESET_START:
1250
1251                 down(&priv->wx_sem);
1252
1253                 if (priv->rtllib->state == RTLLIB_LINKED)
1254                         rtl92e_leisure_ps_leave(dev);
1255
1256                 if (priv->up) {
1257                         netdev_info(dev, "%s():the driver is not up.\n",
1258                                     __func__);
1259                         up(&priv->wx_sem);
1260                         return;
1261                 }
1262                 priv->up = 0;
1263
1264                 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1265                           __func__);
1266                 mdelay(1000);
1267                 RT_TRACE(COMP_RESET,
1268                          "%s():111111111111111111111111======>start to down the driver\n",
1269                          __func__);
1270
1271                 if (!netif_queue_stopped(dev))
1272                         netif_stop_queue(dev);
1273
1274                 rtl92e_irq_disable(dev);
1275                 del_timer_sync(&priv->watch_dog_timer);
1276                 _rtl92e_cancel_deferred_work(priv);
1277                 rtl92e_dm_deinit(dev);
1278                 rtllib_stop_scan_syncro(ieee);
1279
1280                 if (ieee->state == RTLLIB_LINKED) {
1281                         SEM_DOWN_IEEE_WX(&ieee->wx_sem);
1282                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1283                         rtllib_stop_send_beacons(priv->rtllib);
1284                         del_timer_sync(&ieee->associate_timer);
1285                         cancel_delayed_work(&ieee->associate_retry_wq);
1286                         rtllib_stop_scan(ieee);
1287                         netif_carrier_off(dev);
1288                         SEM_UP_IEEE_WX(&ieee->wx_sem);
1289                 } else {
1290                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1291                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1292                 }
1293
1294                 rtl92e_dm_backup_state(dev);
1295
1296                 up(&priv->wx_sem);
1297                 RT_TRACE(COMP_RESET,
1298                          "%s():<==========down process is finished\n",
1299                          __func__);
1300
1301                 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1302                          __func__);
1303                 reset_status = _rtl92e_up(dev, true);
1304
1305                 RT_TRACE(COMP_RESET,
1306                          "%s():<===========up process is finished\n", __func__);
1307                 if (reset_status == -1) {
1308                         if (reset_times < 3) {
1309                                 reset_times++;
1310                                 goto RESET_START;
1311                         } else {
1312                                 netdev_warn(dev, "%s(): Reset Failed\n",
1313                                             __func__);
1314                         }
1315                 }
1316
1317                 ieee->is_silent_reset = 1;
1318
1319                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1320                 priv->RFChangeInProgress = false;
1321                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1322
1323                 rtl92e_enable_hw_security_config(dev);
1324
1325                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1326                     IW_MODE_INFRA) {
1327                         ieee->set_chan(ieee->dev,
1328                                        ieee->current_network.channel);
1329
1330                         queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1331
1332                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1333                            IW_MODE_ADHOC) {
1334                         ieee->set_chan(ieee->dev,
1335                                        ieee->current_network.channel);
1336                         ieee->link_change(ieee->dev);
1337
1338                         notify_wx_assoc_event(ieee);
1339
1340                         rtllib_start_send_beacons(ieee);
1341
1342                         netif_carrier_on(ieee->dev);
1343                 }
1344
1345                 rtl92e_cam_restore(dev);
1346                 rtl92e_dm_restore_state(dev);
1347 END:
1348                 priv->ResetProgress = RESET_TYPE_NORESET;
1349                 priv->reset_count++;
1350
1351                 priv->bForcedSilentReset = false;
1352                 priv->bResetInProgress = false;
1353
1354                 rtl92e_writeb(dev, UFWP, 1);
1355                 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1356                          priv->reset_count);
1357         }
1358 }
1359
1360 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1361                                     u32 *TotalRxDataNum)
1362 {
1363         u16     SlotIndex;
1364         u8      i;
1365
1366         *TotalRxBcnNum = 0;
1367         *TotalRxDataNum = 0;
1368
1369         SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1370                         (priv->rtllib->LinkDetectInfo.SlotNum);
1371         priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1372                         priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1373         priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1374                         priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1375         for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1376                 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1377                 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1378         }
1379 }
1380
1381 static void _rtl92e_watchdog_wq_cb(void *data)
1382 {
1383         struct r8192_priv *priv = container_of_dwork_rsl(data,
1384                                   struct r8192_priv, watch_dog_wq);
1385         struct net_device *dev = priv->rtllib->dev;
1386         struct rtllib_device *ieee = priv->rtllib;
1387         enum reset_type ResetType = RESET_TYPE_NORESET;
1388         static u8 check_reset_cnt;
1389         unsigned long flags;
1390         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1391                                         (&(priv->rtllib->PowerSaveControl));
1392         bool bBusyTraffic = false;
1393         bool    bHigherBusyTraffic = false;
1394         bool    bHigherBusyRxTraffic = false;
1395         bool bEnterPS = false;
1396
1397         if (!priv->up || priv->bHwRadioOff)
1398                 return;
1399
1400         if (priv->rtllib->state >= RTLLIB_LINKED) {
1401                 if (priv->rtllib->CntAfterLink < 2)
1402                         priv->rtllib->CntAfterLink++;
1403         } else {
1404                 priv->rtllib->CntAfterLink = 0;
1405         }
1406
1407         rtl92e_dm_watchdog(dev);
1408
1409         if (rtllib_act_scanning(priv->rtllib, false) == false) {
1410                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1411                      RTLLIB_NOLINK) &&
1412                      (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1413                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1414                         if ((ieee->PowerSaveControl.ReturnPoint ==
1415                              IPS_CALLBACK_NONE) &&
1416                              (!ieee->bNetPromiscuousMode)) {
1417                                 RT_TRACE(COMP_PS,
1418                                          "====================>haha: rtl92e_ips_enter()\n");
1419                                 rtl92e_ips_enter(dev);
1420                         }
1421                 }
1422         }
1423         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1424              IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1425                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1426                 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1427                         bBusyTraffic = true;
1428
1429
1430                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1431                     ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1432                         bHigherBusyTraffic = true;
1433                         if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1434                                 bHigherBusyRxTraffic = true;
1435                         else
1436                                 bHigherBusyRxTraffic = false;
1437                 }
1438
1439                 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1440                     ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1441                     (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1442                         bEnterPS = false;
1443                 else
1444                         bEnterPS = true;
1445
1446                 if (ieee->current_network.beacon_interval < 95)
1447                         bEnterPS = false;
1448
1449                 if (bEnterPS)
1450                         rtl92e_leisure_ps_enter(dev);
1451                 else
1452                         rtl92e_leisure_ps_leave(dev);
1453
1454         } else {
1455                 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1456                 rtl92e_leisure_ps_leave(dev);
1457         }
1458
1459         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1460         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1461         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1462         ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1463
1464         ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1465         ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1466
1467         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1468                 u32     TotalRxBcnNum = 0;
1469                 u32     TotalRxDataNum = 0;
1470
1471                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1472
1473                 if ((TotalRxBcnNum+TotalRxDataNum) == 0)
1474                         priv->check_roaming_cnt++;
1475                 else
1476                         priv->check_roaming_cnt = 0;
1477
1478
1479                 if (priv->check_roaming_cnt > 0) {
1480                         if (ieee->eRFPowerState == eRfOff)
1481                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1482
1483                         netdev_info(dev,
1484                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1485                                     __func__, priv->chan);
1486
1487                         ieee->state = RTLLIB_ASSOCIATING;
1488
1489                         RemovePeerTS(priv->rtllib,
1490                                      priv->rtllib->current_network.bssid);
1491                         ieee->is_roaming = true;
1492                         ieee->is_set_key = false;
1493                         ieee->link_change(dev);
1494                         if (ieee->LedControlHandler)
1495                                 ieee->LedControlHandler(ieee->dev,
1496                                                         LED_CTL_START_TO_LINK);
1497
1498                         notify_wx_assoc_event(ieee);
1499
1500                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1501                              (SEC_ALG_CCMP|SEC_ALG_TKIP)))
1502                                 queue_delayed_work_rsl(ieee->wq,
1503                                         &ieee->associate_procedure_wq, 0);
1504
1505                         priv->check_roaming_cnt = 0;
1506                 }
1507                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1508                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1509
1510         }
1511
1512         spin_lock_irqsave(&priv->tx_lock, flags);
1513         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1514             (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1515                 ResetType = _rtl92e_if_check_reset(dev);
1516                 check_reset_cnt = 3;
1517         }
1518         spin_unlock_irqrestore(&priv->tx_lock, flags);
1519
1520         if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1521                 priv->ResetProgress = RESET_TYPE_NORMAL;
1522                 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1523                 return;
1524         }
1525
1526         if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1527               ResetType == RESET_TYPE_SILENT)))
1528                 _rtl92e_if_silent_reset(dev);
1529         priv->force_reset = false;
1530         priv->bForcedSilentReset = false;
1531         priv->bResetInProgress = false;
1532         RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1533 }
1534
1535 static void _rtl92e_watchdog_timer_cb(unsigned long data)
1536 {
1537         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
1538
1539         queue_delayed_work_rsl(priv->priv_wq, &priv->watch_dog_wq, 0);
1540         mod_timer(&priv->watch_dog_timer, jiffies +
1541                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1542 }
1543
1544 /****************************************************************************
1545  ---------------------------- NIC TX/RX STUFF---------------------------
1546 *****************************************************************************/
1547 void rtl92e_rx_enable(struct net_device *dev)
1548 {
1549         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1550
1551         priv->ops->rx_enable(dev);
1552 }
1553
1554 void rtl92e_tx_enable(struct net_device *dev)
1555 {
1556         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1557
1558         priv->ops->tx_enable(dev);
1559
1560         rtllib_reset_queue(priv->rtllib);
1561 }
1562
1563
1564 static void _rtl92e_free_rx_ring(struct net_device *dev)
1565 {
1566         struct r8192_priv *priv = rtllib_priv(dev);
1567         int i, rx_queue_idx;
1568
1569         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1570              rx_queue_idx++) {
1571                 for (i = 0; i < priv->rxringcount; i++) {
1572                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1573
1574                         if (!skb)
1575                                 continue;
1576
1577                         pci_unmap_single(priv->pdev,
1578                                 *((dma_addr_t *)skb->cb),
1579                                 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1580                                 kfree_skb(skb);
1581                 }
1582
1583                 pci_free_consistent(priv->pdev,
1584                         sizeof(*priv->rx_ring[rx_queue_idx]) *
1585                         priv->rxringcount,
1586                         priv->rx_ring[rx_queue_idx],
1587                         priv->rx_ring_dma[rx_queue_idx]);
1588                 priv->rx_ring[rx_queue_idx] = NULL;
1589         }
1590 }
1591
1592 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1593 {
1594         struct r8192_priv *priv = rtllib_priv(dev);
1595         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1596
1597         while (skb_queue_len(&ring->queue)) {
1598                 struct tx_desc *entry = &ring->desc[ring->idx];
1599                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1600
1601                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1602                         skb->len, PCI_DMA_TODEVICE);
1603                 kfree_skb(skb);
1604                 ring->idx = (ring->idx + 1) % ring->entries;
1605         }
1606
1607         pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
1608         ring->desc, ring->dma);
1609         ring->desc = NULL;
1610 }
1611
1612 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1613                                    int rate)
1614 {
1615         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1616         int ret;
1617         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1618                                     MAX_DEV_ADDR_SIZE);
1619         u8 queue_index = tcb_desc->queue_index;
1620
1621         if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1622              priv->bResetInProgress) {
1623                 kfree_skb(skb);
1624                 return;
1625         }
1626
1627         if (queue_index == TXCMD_QUEUE)
1628                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1629                             __func__);
1630
1631         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1632         skb_push(skb, priv->rtllib->tx_headroom);
1633         ret = _rtl92e_tx(dev, skb);
1634
1635         if (queue_index != MGNT_QUEUE) {
1636                 priv->rtllib->stats.tx_bytes += (skb->len -
1637                                                  priv->rtllib->tx_headroom);
1638                 priv->rtllib->stats.tx_packets++;
1639         }
1640
1641         if (ret != 0)
1642                 kfree_skb(skb);
1643 }
1644
1645 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1646 {
1647         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1648         int ret;
1649         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1650                                     MAX_DEV_ADDR_SIZE);
1651         u8 queue_index = tcb_desc->queue_index;
1652
1653         if (queue_index != TXCMD_QUEUE) {
1654                 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1655                      !priv->up || priv->bResetInProgress) {
1656                         kfree_skb(skb);
1657                         return 0;
1658                 }
1659         }
1660
1661         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1662         if (queue_index == TXCMD_QUEUE) {
1663                 _rtl92e_tx_cmd(dev, skb);
1664                 return 0;
1665         }
1666
1667         tcb_desc->RATRIndex = 7;
1668         tcb_desc->bTxDisableRateFallBack = 1;
1669         tcb_desc->bTxUseDriverAssingedRate = 1;
1670         tcb_desc->bTxEnableFwCalcDur = 1;
1671         skb_push(skb, priv->rtllib->tx_headroom);
1672         ret = _rtl92e_tx(dev, skb);
1673         if (ret != 0)
1674                 kfree_skb(skb);
1675         return ret;
1676 }
1677
1678 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1679 {
1680         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1681
1682         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1683
1684         while (skb_queue_len(&ring->queue)) {
1685                 struct tx_desc *entry = &ring->desc[ring->idx];
1686                 struct sk_buff *skb;
1687
1688                 if (prio != BEACON_QUEUE) {
1689                         if (entry->OWN)
1690                                 return;
1691                         ring->idx = (ring->idx + 1) % ring->entries;
1692                 }
1693
1694                 skb = __skb_dequeue(&ring->queue);
1695                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1696                 skb->len, PCI_DMA_TODEVICE);
1697
1698                 kfree_skb(skb);
1699         }
1700         if (prio != BEACON_QUEUE)
1701                 tasklet_schedule(&priv->irq_tx_tasklet);
1702 }
1703
1704 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1705 {
1706         struct r8192_priv *priv = rtllib_priv(dev);
1707         struct rtl8192_tx_ring *ring;
1708         struct tx_desc_cmd *entry;
1709         unsigned int idx;
1710         struct cb_desc *tcb_desc;
1711         unsigned long flags;
1712
1713         spin_lock_irqsave(&priv->irq_th_lock, flags);
1714         ring = &priv->tx_ring[TXCMD_QUEUE];
1715
1716         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1717         entry = (struct tx_desc_cmd *) &ring->desc[idx];
1718
1719         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1720
1721         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1722
1723         __skb_queue_tail(&ring->queue, skb);
1724         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1725 }
1726
1727 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1728 {
1729         struct r8192_priv *priv = rtllib_priv(dev);
1730         struct rtl8192_tx_ring  *ring;
1731         unsigned long flags;
1732         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1733                                     MAX_DEV_ADDR_SIZE);
1734         struct tx_desc *pdesc = NULL;
1735         struct rtllib_hdr_1addr *header = NULL;
1736         u16 fc = 0, type = 0, stype = 0;
1737         bool  multi_addr = false, broad_addr = false, uni_addr = false;
1738         u8 *pda_addr = NULL;
1739         int   idx;
1740         u32 fwinfo_size = 0;
1741
1742         if (priv->bdisable_nic) {
1743                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1744                             __func__);
1745                 return skb->len;
1746         }
1747
1748         priv->rtllib->bAwakePktSent = true;
1749
1750         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1751
1752         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1753         fc = le16_to_cpu(header->frame_ctl);
1754         type = WLAN_FC_GET_TYPE(fc);
1755         stype = WLAN_FC_GET_STYPE(fc);
1756         pda_addr = header->addr1;
1757
1758         if (is_broadcast_ether_addr(pda_addr))
1759                 broad_addr = true;
1760         else if (is_multicast_ether_addr(pda_addr))
1761                 multi_addr = true;
1762         else
1763                 uni_addr = true;
1764
1765         if (uni_addr)
1766                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1767         else if (multi_addr)
1768                 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1769         else
1770                 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1771
1772         spin_lock_irqsave(&priv->irq_th_lock, flags);
1773         ring = &priv->tx_ring[tcb_desc->queue_index];
1774         if (tcb_desc->queue_index != BEACON_QUEUE)
1775                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1776         else
1777                 idx = 0;
1778
1779         pdesc = &ring->desc[idx];
1780         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1781                 netdev_warn(dev,
1782                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1783                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1784                             skb_queue_len(&ring->queue));
1785                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1786                 return skb->len;
1787         }
1788
1789         if (type == RTLLIB_FTYPE_DATA) {
1790                 if (priv->rtllib->LedControlHandler)
1791                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1792         }
1793         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1794         __skb_queue_tail(&ring->queue, skb);
1795         pdesc->OWN = 1;
1796         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1797         dev->trans_start = jiffies;
1798
1799         rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1800         return 0;
1801 }
1802
1803 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1804 {
1805         struct r8192_priv *priv = rtllib_priv(dev);
1806         struct rx_desc *entry = NULL;
1807         int i, rx_queue_idx;
1808
1809         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1810                 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1811                                               sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1812                                               &priv->rx_ring_dma[rx_queue_idx]);
1813                 if (!priv->rx_ring[rx_queue_idx] ||
1814                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1815                         netdev_warn(dev, "Cannot allocate RX ring\n");
1816                         return -ENOMEM;
1817                 }
1818
1819                 priv->rx_idx[rx_queue_idx] = 0;
1820
1821                 for (i = 0; i < priv->rxringcount; i++) {
1822                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1823                         dma_addr_t *mapping;
1824
1825                         entry = &priv->rx_ring[rx_queue_idx][i];
1826                         if (!skb)
1827                                 return 0;
1828                         skb->dev = dev;
1829                         priv->rx_buf[rx_queue_idx][i] = skb;
1830                         mapping = (dma_addr_t *)skb->cb;
1831                         *mapping = pci_map_single(priv->pdev,
1832                                                   skb_tail_pointer_rsl(skb),
1833                                                   priv->rxbuffersize,
1834                                                   PCI_DMA_FROMDEVICE);
1835                         if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1836                                 dev_kfree_skb_any(skb);
1837                                 return -1;
1838                         }
1839                         entry->BufferAddress = *mapping;
1840
1841                         entry->Length = priv->rxbuffersize;
1842                         entry->OWN = 1;
1843                 }
1844
1845                 if (entry)
1846                         entry->EOR = 1;
1847         }
1848         return 0;
1849 }
1850
1851 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1852                                  unsigned int entries)
1853 {
1854         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1855         struct tx_desc *ring;
1856         dma_addr_t dma;
1857         int i;
1858
1859         ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1860         if (!ring || (unsigned long)ring & 0xFF) {
1861                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1862                 return -ENOMEM;
1863         }
1864
1865         priv->tx_ring[prio].desc = ring;
1866         priv->tx_ring[prio].dma = dma;
1867         priv->tx_ring[prio].idx = 0;
1868         priv->tx_ring[prio].entries = entries;
1869         skb_queue_head_init(&priv->tx_ring[prio].queue);
1870
1871         for (i = 0; i < entries; i++)
1872                 ring[i].NextDescAddress =
1873                         (u32)dma + ((i + 1) % entries) *
1874                         sizeof(*ring);
1875
1876         return 0;
1877 }
1878
1879 static short _rtl92e_pci_initdescring(struct net_device *dev)
1880 {
1881         u32 ret;
1882         int i;
1883         struct r8192_priv *priv = rtllib_priv(dev);
1884
1885         ret = _rtl92e_alloc_rx_ring(dev);
1886         if (ret)
1887                 return ret;
1888
1889         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1890                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1891                 if (ret)
1892                         goto err_free_rings;
1893         }
1894
1895         return 0;
1896
1897 err_free_rings:
1898         _rtl92e_free_rx_ring(dev);
1899         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1900                 if (priv->tx_ring[i].desc)
1901                         _rtl92e_free_tx_ring(dev, i);
1902         return 1;
1903 }
1904
1905 void rtl92e_reset_desc_ring(struct net_device *dev)
1906 {
1907         struct r8192_priv *priv = rtllib_priv(dev);
1908         int i, rx_queue_idx;
1909         unsigned long flags = 0;
1910
1911         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1912                 if (priv->rx_ring[rx_queue_idx]) {
1913                         struct rx_desc *entry = NULL;
1914
1915                         for (i = 0; i < priv->rxringcount; i++) {
1916                                 entry = &priv->rx_ring[rx_queue_idx][i];
1917                                 entry->OWN = 1;
1918                         }
1919                         priv->rx_idx[rx_queue_idx] = 0;
1920                 }
1921         }
1922
1923         spin_lock_irqsave(&priv->irq_th_lock, flags);
1924         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1925                 if (priv->tx_ring[i].desc) {
1926                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1927
1928                         while (skb_queue_len(&ring->queue)) {
1929                                 struct tx_desc *entry = &ring->desc[ring->idx];
1930                                 struct sk_buff *skb =
1931                                                  __skb_dequeue(&ring->queue);
1932
1933                                 pci_unmap_single(priv->pdev,
1934                                                  entry->TxBuffAddr,
1935                                                  skb->len, PCI_DMA_TODEVICE);
1936                                 kfree_skb(skb);
1937                                 ring->idx = (ring->idx + 1) % ring->entries;
1938                         }
1939                         ring->idx = 0;
1940                 }
1941         }
1942         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1943 }
1944
1945 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1946                                     struct rtllib_rx_stats *stats)
1947 {
1948         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1949
1950         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1951                 stats->mac_time = priv->LastRxDescTSF;
1952         else
1953                 priv->LastRxDescTSF = stats->mac_time;
1954 }
1955
1956 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1957 {
1958         long    signal_power;
1959
1960         signal_power = (long)((signal_strength_index + 1) >> 1);
1961         signal_power -= 95;
1962
1963         return signal_power;
1964 }
1965
1966
1967 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1968                                  struct rtllib_rx_stats *pprevious_stats)
1969 {
1970         int weighting = 0;
1971
1972
1973         if (priv->stats.recv_signal_power == 0)
1974                 priv->stats.recv_signal_power =
1975                                          pprevious_stats->RecvSignalPower;
1976
1977         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1978                 weighting = 5;
1979         else if (pprevious_stats->RecvSignalPower <
1980                  priv->stats.recv_signal_power)
1981                 weighting = (-5);
1982         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1983                                         pprevious_stats->RecvSignalPower +
1984                                         weighting) / 6;
1985 }
1986
1987 u8 rtl92e_rx_db_to_percent(char antpower)
1988 {
1989         if ((antpower <= -100) || (antpower >= 20))
1990                 return  0;
1991         else if (antpower >= 0)
1992                 return  100;
1993         else
1994                 return  100 + antpower;
1995
1996 }       /* QueryRxPwrPercentage */
1997
1998 u8 rtl92e_evm_db_to_percent(char value)
1999 {
2000         char ret_val;
2001
2002         ret_val = value;
2003
2004         if (ret_val >= 0)
2005                 ret_val = 0;
2006         if (ret_val <= -33)
2007                 ret_val = -33;
2008         ret_val = 0 - ret_val;
2009         ret_val *= 3;
2010         if (ret_val == 99)
2011                 ret_val = 100;
2012         return ret_val;
2013 }
2014
2015 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2016                             struct rtllib_rx_stats *ptarget_stats)
2017 {
2018         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2019         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2020 }
2021
2022
2023
2024 static void _rtl92e_rx_normal(struct net_device *dev)
2025 {
2026         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2027         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2028         bool unicast_packet = false;
2029         bool bLedBlinking = true;
2030         u16 fc = 0, type = 0;
2031         u32 skb_len = 0;
2032         int rx_queue_idx = RX_MPDU_QUEUE;
2033
2034         struct rtllib_rx_stats stats = {
2035                 .signal = 0,
2036                 .noise = (u8) -98,
2037                 .rate = 0,
2038                 .freq = RTLLIB_24GHZ_BAND,
2039         };
2040         unsigned int count = priv->rxringcount;
2041
2042         stats.nic_type = NIC_8192E;
2043
2044         while (count--) {
2045                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2046                                         [priv->rx_idx[rx_queue_idx]];
2047                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2048                                       [priv->rx_idx[rx_queue_idx]];
2049                 struct sk_buff *new_skb;
2050
2051                 if (pdesc->OWN)
2052                         return;
2053                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2054                 pdesc, skb))
2055                         goto done;
2056                 new_skb = dev_alloc_skb(priv->rxbuffersize);
2057                 /* if allocation of new skb failed - drop current packet
2058                  * and reuse skb
2059                  */
2060                 if (unlikely(!new_skb))
2061                         goto done;
2062
2063                 pci_unmap_single(priv->pdev,
2064                                 *((dma_addr_t *)skb->cb),
2065                                 priv->rxbuffersize,
2066                                 PCI_DMA_FROMDEVICE);
2067
2068                 skb_put(skb, pdesc->Length);
2069                 skb_reserve(skb, stats.RxDrvInfoSize +
2070                         stats.RxBufShift);
2071                 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2072                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2073                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2074                         /* unicast packet */
2075                         unicast_packet = true;
2076                 }
2077                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2078                 type = WLAN_FC_GET_TYPE(fc);
2079                 if (type == RTLLIB_FTYPE_MGMT)
2080                         bLedBlinking = false;
2081
2082                 if (bLedBlinking)
2083                         if (priv->rtllib->LedControlHandler)
2084                                 priv->rtllib->LedControlHandler(dev,
2085                                                         LED_CTL_RX);
2086
2087                 if (stats.bCRC) {
2088                         if (type != RTLLIB_FTYPE_MGMT)
2089                                 priv->stats.rxdatacrcerr++;
2090                         else
2091                                 priv->stats.rxmgmtcrcerr++;
2092                 }
2093
2094                 skb_len = skb->len;
2095
2096                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2097                         dev_kfree_skb_any(skb);
2098                 } else {
2099                         priv->stats.rxok++;
2100                         if (unicast_packet)
2101                                 priv->stats.rxbytesunicast += skb_len;
2102                 }
2103
2104                 skb = new_skb;
2105                 skb->dev = dev;
2106
2107                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2108                                                                  skb;
2109                 *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
2110                                             skb_tail_pointer_rsl(skb),
2111                                             priv->rxbuffersize,
2112                                             PCI_DMA_FROMDEVICE);
2113                 if (pci_dma_mapping_error(priv->pdev,
2114                                           *((dma_addr_t *)skb->cb))) {
2115                         dev_kfree_skb_any(skb);
2116                         return;
2117                 }
2118 done:
2119                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2120                 pdesc->OWN = 1;
2121                 pdesc->Length = priv->rxbuffersize;
2122                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
2123                         pdesc->EOR = 1;
2124                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2125                                               priv->rxringcount;
2126         }
2127
2128 }
2129
2130 static void _rtl92e_tx_resume(struct net_device *dev)
2131 {
2132         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2133         struct rtllib_device *ieee = priv->rtllib;
2134         struct sk_buff *skb;
2135         int queue_index;
2136
2137         for (queue_index = BK_QUEUE;
2138              queue_index < MAX_QUEUE_SIZE; queue_index++) {
2139                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2140                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2141                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2142                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2143                 }
2144         }
2145 }
2146
2147 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2148 {
2149         _rtl92e_tx_resume(priv->rtllib->dev);
2150 }
2151
2152 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2153 {
2154         _rtl92e_rx_normal(priv->rtllib->dev);
2155
2156         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2157                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2158 }
2159
2160 /****************************************************************************
2161  ---------------------------- NIC START/CLOSE STUFF---------------------------
2162 *****************************************************************************/
2163 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2164 {
2165         cancel_delayed_work(&priv->watch_dog_wq);
2166         cancel_delayed_work(&priv->update_beacon_wq);
2167         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2168         cancel_work_sync(&priv->reset_wq);
2169         cancel_work_sync(&priv->qos_activate);
2170 }
2171
2172 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2173 {
2174         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2175                 return -1;
2176         return 0;
2177 }
2178
2179 static int _rtl92e_open(struct net_device *dev)
2180 {
2181         struct r8192_priv *priv = rtllib_priv(dev);
2182         int ret;
2183
2184         down(&priv->wx_sem);
2185         ret = _rtl92e_try_up(dev);
2186         up(&priv->wx_sem);
2187         return ret;
2188
2189 }
2190
2191 static int _rtl92e_try_up(struct net_device *dev)
2192 {
2193         struct r8192_priv *priv = rtllib_priv(dev);
2194
2195         if (priv->up == 1)
2196                 return -1;
2197         return _rtl92e_up(dev, false);
2198 }
2199
2200
2201 static int _rtl92e_close(struct net_device *dev)
2202 {
2203         struct r8192_priv *priv = rtllib_priv(dev);
2204         int ret;
2205
2206         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2207                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2208                 rtllib_stop_scan(priv->rtllib);
2209         }
2210
2211         down(&priv->wx_sem);
2212
2213         ret = _rtl92e_down(dev, true);
2214
2215         up(&priv->wx_sem);
2216
2217         return ret;
2218
2219 }
2220
2221 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2222 {
2223         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2224                 return -1;
2225
2226         return 0;
2227 }
2228
2229 void rtl92e_commit(struct net_device *dev)
2230 {
2231         struct r8192_priv *priv = rtllib_priv(dev);
2232
2233         if (priv->up == 0)
2234                 return;
2235         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2236         rtl92e_irq_disable(dev);
2237         priv->ops->stop_adapter(dev, true);
2238         _rtl92e_up(dev, false);
2239 }
2240
2241 static void _rtl92e_restart(void *data)
2242 {
2243         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2244                                   reset_wq);
2245         struct net_device *dev = priv->rtllib->dev;
2246
2247         down(&priv->wx_sem);
2248
2249         rtl92e_commit(dev);
2250
2251         up(&priv->wx_sem);
2252 }
2253
2254 static void _rtl92e_set_multicast(struct net_device *dev)
2255 {
2256         struct r8192_priv *priv = rtllib_priv(dev);
2257         short promisc;
2258
2259         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2260         priv->promisc = promisc;
2261
2262 }
2263
2264
2265 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2266 {
2267         struct r8192_priv *priv = rtllib_priv(dev);
2268         struct sockaddr *addr = mac;
2269
2270         down(&priv->wx_sem);
2271
2272         ether_addr_copy(dev->dev_addr, addr->sa_data);
2273
2274         schedule_work(&priv->reset_wq);
2275         up(&priv->wx_sem);
2276
2277         return 0;
2278 }
2279
2280 /* based on ipw2200 driver */
2281 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2282 {
2283         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2284         struct iwreq *wrq = (struct iwreq *)rq;
2285         int ret = -1;
2286         struct rtllib_device *ieee = priv->rtllib;
2287         u32 key[4];
2288         const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2289         struct iw_point *p = &wrq->u.data;
2290         struct ieee_param *ipw = NULL;
2291
2292         down(&priv->wx_sem);
2293
2294         switch (cmd) {
2295         case RTL_IOCTL_WPA_SUPPLICANT:
2296                 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
2297                         ret = -EINVAL;
2298                         goto out;
2299                 }
2300
2301                 ipw = memdup_user(p->pointer, p->length);
2302                 if (IS_ERR(ipw)) {
2303                         ret = PTR_ERR(ipw);
2304                         goto out;
2305                 }
2306
2307                 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
2308                         if (ipw->u.crypt.set_tx) {
2309                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2310                                         ieee->pairwise_key_type = KEY_TYPE_CCMP;
2311                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2312                                         ieee->pairwise_key_type = KEY_TYPE_TKIP;
2313                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2314                                         if (ipw->u.crypt.key_len == 13)
2315                                                 ieee->pairwise_key_type =
2316                                                          KEY_TYPE_WEP104;
2317                                         else if (ipw->u.crypt.key_len == 5)
2318                                                 ieee->pairwise_key_type =
2319                                                          KEY_TYPE_WEP40;
2320                                 } else {
2321                                         ieee->pairwise_key_type = KEY_TYPE_NA;
2322                                 }
2323
2324                                 if (ieee->pairwise_key_type) {
2325                                         if (is_zero_ether_addr(ieee->ap_mac_addr))
2326                                                 ieee->iw_mode = IW_MODE_ADHOC;
2327                                         memcpy((u8 *)key, ipw->u.crypt.key, 16);
2328                                         rtl92e_enable_hw_security_config(dev);
2329                                         rtl92e_set_swcam(dev, 4,
2330                                                          ipw->u.crypt.idx,
2331                                                          ieee->pairwise_key_type,
2332                                                          (u8 *)ieee->ap_mac_addr,
2333                                                          0, key, 0);
2334                                         rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
2335                                                        ieee->pairwise_key_type,
2336                                                        (u8 *)ieee->ap_mac_addr,
2337                                                        0, key);
2338                                         if (ieee->iw_mode == IW_MODE_ADHOC) {
2339                                                 rtl92e_set_swcam(dev,
2340                                                                  ipw->u.crypt.idx,
2341                                                                  ipw->u.crypt.idx,
2342                                                                  ieee->pairwise_key_type,
2343                                                                  (u8 *)ieee->ap_mac_addr,
2344                                                                  0, key, 0);
2345                                                 rtl92e_set_key(dev,
2346                                                                ipw->u.crypt.idx,
2347                                                                ipw->u.crypt.idx,
2348                                                                ieee->pairwise_key_type,
2349                                                                (u8 *)ieee->ap_mac_addr,
2350                                                                0, key);
2351                                         }
2352                                 }
2353                                 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
2354                                      && ieee->pHTInfo->bCurrentHTSupport) {
2355                                         rtl92e_writeb(dev, 0x173, 1);
2356                                 }
2357
2358                         } else {
2359                                 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2360                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2361                                         ieee->group_key_type = KEY_TYPE_CCMP;
2362                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2363                                         ieee->group_key_type = KEY_TYPE_TKIP;
2364                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2365                                         if (ipw->u.crypt.key_len == 13)
2366                                                 ieee->group_key_type =
2367                                                          KEY_TYPE_WEP104;
2368                                         else if (ipw->u.crypt.key_len == 5)
2369                                                 ieee->group_key_type =
2370                                                          KEY_TYPE_WEP40;
2371                                 } else
2372                                         ieee->group_key_type = KEY_TYPE_NA;
2373
2374                                 if (ieee->group_key_type) {
2375                                         rtl92e_set_swcam(dev, ipw->u.crypt.idx,
2376                                                          ipw->u.crypt.idx,
2377                                                          ieee->group_key_type,
2378                                                          broadcast_addr, 0, key,
2379                                                          0);
2380                                         rtl92e_set_key(dev, ipw->u.crypt.idx,
2381                                                        ipw->u.crypt.idx,
2382                                                        ieee->group_key_type,
2383                                                        broadcast_addr, 0, key);
2384                                 }
2385                         }
2386                 }
2387
2388                 ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
2389                                                   0);
2390                 kfree(ipw);
2391                 break;
2392         default:
2393                 ret = -EOPNOTSUPP;
2394                 break;
2395         }
2396
2397 out:
2398         up(&priv->wx_sem);
2399
2400         return ret;
2401 }
2402
2403
2404 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2405 {
2406         struct net_device *dev = (struct net_device *) netdev;
2407         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2408         unsigned long flags;
2409         u32 inta;
2410         u32 intb;
2411
2412         intb = 0;
2413
2414         if (priv->irq_enabled == 0)
2415                 goto done;
2416
2417         spin_lock_irqsave(&priv->irq_th_lock, flags);
2418
2419         priv->ops->interrupt_recognized(dev, &inta, &intb);
2420         priv->stats.shints++;
2421
2422         if (!inta) {
2423                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2424                 goto done;
2425         }
2426
2427         if (inta == 0xffff) {
2428                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2429                 goto done;
2430         }
2431
2432         priv->stats.ints++;
2433
2434         if (!netif_running(dev)) {
2435                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2436                 goto done;
2437         }
2438
2439         if (inta & IMR_TBDOK) {
2440                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2441                 priv->stats.txbeaconokint++;
2442         }
2443
2444         if (inta & IMR_TBDER) {
2445                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2446                 priv->stats.txbeaconerr++;
2447         }
2448
2449         if (inta & IMR_BDOK)
2450                 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2451
2452         if (inta  & IMR_MGNTDOK) {
2453                 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2454                 priv->stats.txmanageokint++;
2455                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2456                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2457                 if (priv->rtllib->ack_tx_to_ieee) {
2458                         if (_rtl92e_is_tx_queue_empty(dev)) {
2459                                 priv->rtllib->ack_tx_to_ieee = 0;
2460                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2461                         }
2462                 }
2463                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2464         }
2465
2466         if (inta & IMR_COMDOK) {
2467                 priv->stats.txcmdpktokint++;
2468                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2469         }
2470
2471         if (inta & IMR_HIGHDOK)
2472                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2473
2474         if (inta & IMR_ROK) {
2475                 priv->stats.rxint++;
2476                 priv->InterruptLog.nIMR_ROK++;
2477                 tasklet_schedule(&priv->irq_rx_tasklet);
2478         }
2479
2480         if (inta & IMR_BcnInt) {
2481                 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2482                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2483         }
2484
2485         if (inta & IMR_RDU) {
2486                 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2487                 priv->stats.rxrdu++;
2488                 rtl92e_writel(dev, INTA_MASK,
2489                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2490                 tasklet_schedule(&priv->irq_rx_tasklet);
2491         }
2492
2493         if (inta & IMR_RXFOVW) {
2494                 RT_TRACE(COMP_INTR, "rx overflow !\n");
2495                 priv->stats.rxoverflow++;
2496                 tasklet_schedule(&priv->irq_rx_tasklet);
2497         }
2498
2499         if (inta & IMR_TXFOVW)
2500                 priv->stats.txoverflow++;
2501
2502         if (inta & IMR_BKDOK) {
2503                 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2504                 priv->stats.txbkokint++;
2505                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2506                 _rtl92e_tx_isr(dev, BK_QUEUE);
2507         }
2508
2509         if (inta & IMR_BEDOK) {
2510                 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2511                 priv->stats.txbeokint++;
2512                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2513                 _rtl92e_tx_isr(dev, BE_QUEUE);
2514         }
2515
2516         if (inta & IMR_VIDOK) {
2517                 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2518                 priv->stats.txviokint++;
2519                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2520                 _rtl92e_tx_isr(dev, VI_QUEUE);
2521         }
2522
2523         if (inta & IMR_VODOK) {
2524                 priv->stats.txvookint++;
2525                 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2526                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2527                 _rtl92e_tx_isr(dev, VO_QUEUE);
2528         }
2529
2530         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2531
2532 done:
2533
2534         return IRQ_HANDLED;
2535 }
2536
2537
2538
2539 /****************************************************************************
2540         ---------------------------- PCI_STUFF---------------------------
2541 *****************************************************************************/
2542 static const struct net_device_ops rtl8192_netdev_ops = {
2543         .ndo_open = _rtl92e_open,
2544         .ndo_stop = _rtl92e_close,
2545         .ndo_tx_timeout = _rtl92e_tx_timeout,
2546         .ndo_do_ioctl = _rtl92e_ioctl,
2547         .ndo_set_rx_mode = _rtl92e_set_multicast,
2548         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2549         .ndo_validate_addr = eth_validate_addr,
2550         .ndo_change_mtu = eth_change_mtu,
2551         .ndo_start_xmit = rtllib_xmit,
2552 };
2553
2554 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2555                              const struct pci_device_id *id)
2556 {
2557         unsigned long ioaddr = 0;
2558         struct net_device *dev = NULL;
2559         struct r8192_priv *priv = NULL;
2560         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2561         unsigned long pmem_start, pmem_len, pmem_flags;
2562         int err = -ENOMEM;
2563         u8 revision_id;
2564
2565         RT_TRACE(COMP_INIT, "Configuring chip resources");
2566
2567         if (pci_enable_device(pdev)) {
2568                 dev_err(&pdev->dev, "Failed to enable PCI device");
2569                 return -EIO;
2570         }
2571
2572         pci_set_master(pdev);
2573
2574         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2575                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2576                         dev_info(&pdev->dev,
2577                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2578                         goto err_pci_disable;
2579                 }
2580         }
2581         dev = alloc_rtllib(sizeof(struct r8192_priv));
2582         if (!dev)
2583                 goto err_pci_disable;
2584
2585         err = -ENODEV;
2586
2587         pci_set_drvdata(pdev, dev);
2588         SET_NETDEV_DEV(dev, &pdev->dev);
2589         priv = rtllib_priv(dev);
2590         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2591         priv->pdev = pdev;
2592         priv->rtllib->pdev = pdev;
2593         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2594             (pdev->subsystem_device == 0x3304))
2595                 priv->rtllib->bSupportRemoteWakeUp = 1;
2596         else
2597                 priv->rtllib->bSupportRemoteWakeUp = 0;
2598
2599         pmem_start = pci_resource_start(pdev, 1);
2600         pmem_len = pci_resource_len(pdev, 1);
2601         pmem_flags = pci_resource_flags(pdev, 1);
2602
2603         if (!(pmem_flags & IORESOURCE_MEM)) {
2604                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2605                 goto err_rel_rtllib;
2606         }
2607
2608         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2609                  pmem_start);
2610         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2611                 netdev_err(dev, "request_mem_region failed!");
2612                 goto err_rel_rtllib;
2613         }
2614
2615
2616         ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2617         if (ioaddr == (unsigned long)NULL) {
2618                 netdev_err(dev, "ioremap failed!");
2619                 goto err_rel_mem;
2620         }
2621
2622         dev->mem_start = ioaddr;
2623         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2624
2625         pci_read_config_byte(pdev, 0x08, &revision_id);
2626         /* If the revisionid is 0x10, the device uses rtl8192se. */
2627         if (pdev->device == 0x8192 && revision_id == 0x10)
2628                 goto err_unmap;
2629
2630         priv->ops = ops;
2631
2632         if (rtl92e_check_adapter(pdev, dev) == false)
2633                 goto err_unmap;
2634
2635         dev->irq = pdev->irq;
2636         priv->irq = 0;
2637
2638         dev->netdev_ops = &rtl8192_netdev_ops;
2639
2640         dev->wireless_handlers = &r8192_wx_handlers_def;
2641         dev->ethtool_ops = &rtl819x_ethtool_ops;
2642
2643         dev->type = ARPHRD_ETHER;
2644         dev->watchdog_timeo = HZ * 3;
2645
2646         if (dev_alloc_name(dev, ifname) < 0) {
2647                 RT_TRACE(COMP_INIT,
2648                          "Oops: devname already taken! Trying wlan%%d...\n");
2649                         dev_alloc_name(dev, ifname);
2650         }
2651
2652         RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2653         if (_rtl92e_init(dev) != 0) {
2654                 netdev_warn(dev, "Initialization failed");
2655                 goto err_free_irq;
2656         }
2657
2658         netif_carrier_off(dev);
2659         netif_stop_queue(dev);
2660
2661         if (register_netdev(dev))
2662                 goto err_free_irq;
2663         RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2664
2665         if (priv->polling_timer_on == 0)
2666                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
2667
2668         RT_TRACE(COMP_INIT, "Driver probe completed\n");
2669         return 0;
2670
2671 err_free_irq:
2672         free_irq(dev->irq, dev);
2673         priv->irq = 0;
2674 err_unmap:
2675         iounmap((void __iomem *)ioaddr);
2676 err_rel_mem:
2677         release_mem_region(pmem_start, pmem_len);
2678 err_rel_rtllib:
2679         free_rtllib(dev);
2680 err_pci_disable:
2681         pci_disable_device(pdev);
2682         return err;
2683 }
2684
2685 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2686 {
2687         struct net_device *dev = pci_get_drvdata(pdev);
2688         struct r8192_priv *priv;
2689         u32 i;
2690
2691         if (dev) {
2692                 unregister_netdev(dev);
2693
2694                 priv = rtllib_priv(dev);
2695
2696                 del_timer_sync(&priv->gpio_polling_timer);
2697                 cancel_delayed_work(&priv->gpio_change_rf_wq);
2698                 priv->polling_timer_on = 0;
2699                 _rtl92e_down(dev, true);
2700                 rtl92e_dm_deinit(dev);
2701                 if (priv->pFirmware) {
2702                         vfree(priv->pFirmware);
2703                         priv->pFirmware = NULL;
2704                 }
2705                 destroy_workqueue(priv->priv_wq);
2706                 _rtl92e_free_rx_ring(dev);
2707                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2708                         _rtl92e_free_tx_ring(dev, i);
2709
2710                 if (priv->irq) {
2711                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2712                         free_irq(dev->irq, dev);
2713                         priv->irq = 0;
2714                 }
2715                 free_rtllib(dev);
2716
2717                 if (dev->mem_start != 0) {
2718                         iounmap((void __iomem *)dev->mem_start);
2719                         release_mem_region(pci_resource_start(pdev, 1),
2720                                         pci_resource_len(pdev, 1));
2721                 }
2722         } else {
2723                 priv = rtllib_priv(dev);
2724         }
2725
2726         pci_disable_device(pdev);
2727         RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2728 }
2729
2730 bool rtl92e_enable_nic(struct net_device *dev)
2731 {
2732         bool init_status = true;
2733         struct r8192_priv *priv = rtllib_priv(dev);
2734         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2735                                         (&(priv->rtllib->PowerSaveControl));
2736
2737         if (!priv->up) {
2738                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2739                 priv->bdisable_nic = false;
2740                 return false;
2741         }
2742
2743         RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2744         priv->bfirst_init = true;
2745         init_status = priv->ops->initialize_adapter(dev);
2746         if (!init_status) {
2747                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2748                 priv->bdisable_nic = false;
2749                 return false;
2750         }
2751         RT_TRACE(COMP_INIT, "start adapter finished\n");
2752         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2753         priv->bfirst_init = false;
2754
2755         rtl92e_irq_enable(dev);
2756         priv->bdisable_nic = false;
2757         RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2758         return init_status;
2759 }
2760 bool rtl92e_disable_nic(struct net_device *dev)
2761 {
2762         struct r8192_priv *priv = rtllib_priv(dev);
2763         u8 tmp_state = 0;
2764
2765         RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2766         priv->bdisable_nic = true;
2767         tmp_state = priv->rtllib->state;
2768         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2769         priv->rtllib->state = tmp_state;
2770         _rtl92e_cancel_deferred_work(priv);
2771         rtl92e_irq_disable(dev);
2772
2773         priv->ops->stop_adapter(dev, false);
2774         RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2775
2776         return true;
2777 }
2778
2779 module_pci_driver(rtl8192_pci_driver);
2780
2781 void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
2782 {
2783         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
2784
2785         priv->polling_timer_on = 1;
2786
2787         queue_delayed_work_rsl(priv->priv_wq, &priv->gpio_change_rf_wq, 0);
2788
2789         mod_timer(&priv->gpio_polling_timer, jiffies +
2790                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2791 }
2792
2793 /***************************************************************************
2794         ------------------- module init / exit stubs ----------------
2795 ****************************************************************************/
2796 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2797 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2798 MODULE_VERSION(DRV_VERSION);
2799 MODULE_LICENSE("GPL");
2800 /*(DEBLOBBED)*/
2801
2802 module_param(ifname, charp, S_IRUGO|S_IWUSR);
2803 module_param(hwwep, int, S_IRUGO|S_IWUSR);
2804 module_param(channels, int, S_IRUGO|S_IWUSR);
2805
2806 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2807 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2808 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");