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 const 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                                 schedule_delayed_work(
 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 = 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 = 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 = 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                         schedule_work(&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                         schedule_work(&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         schedule_delayed_work(&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                 schedule_work(&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         mutex_init(&priv->wx_mutex);
 997         mutex_init(&priv->rf_mutex);
 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         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1006         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1007                       dev);
1008         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1009                               (void *)_rtl92e_watchdog_wq_cb, dev);
1010         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1011                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
1012         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1013                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1014         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1015                               (void *)_rtl92e_update_beacon, dev);
1016         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1017         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1018                               (void *) rtl92e_hw_wakeup_wq, dev);
1019         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1020                               (void *) rtl92e_hw_sleep_wq, dev);
1021         tasklet_init(&priv->irq_rx_tasklet,
1022                      (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1023                      (unsigned long)priv);
1024         tasklet_init(&priv->irq_tx_tasklet,
1025                      (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1026                      (unsigned long)priv);
1027         tasklet_init(&priv->irq_prepare_beacon_tasklet,
1028                      (void(*)(unsigned long))_rtl92e_prepare_beacon,
1029                      (unsigned long)priv);
1030 }
1031
1032 static short _rtl92e_get_channel_map(struct net_device *dev)
1033 {
1034         int i;
1035
1036         struct r8192_priv *priv = rtllib_priv(dev);
1037
1038         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
1039                         && (priv->rf_chip != RF_6052)) {
1040                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1041                            __func__);
1042                 return -1;
1043         }
1044
1045         if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1046                 netdev_info(dev,
1047                             "rtl819x_init:Error channel plan! Set to default.\n");
1048                 priv->ChannelPlan = COUNTRY_CODE_FCC;
1049         }
1050         RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1051         dot11d_init(priv->rtllib);
1052         Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1053         for (i = 1; i <= 11; i++)
1054                 (priv->rtllib->active_channel_map)[i] = 1;
1055         (priv->rtllib->active_channel_map)[12] = 2;
1056         (priv->rtllib->active_channel_map)[13] = 2;
1057
1058         return 0;
1059 }
1060
1061 static short _rtl92e_init(struct net_device *dev)
1062 {
1063         struct r8192_priv *priv = rtllib_priv(dev);
1064
1065         memset(&(priv->stats), 0, sizeof(struct rt_stats));
1066
1067         _rtl92e_init_priv_handler(dev);
1068         _rtl92e_init_priv_constant(dev);
1069         _rtl92e_init_priv_variable(dev);
1070         _rtl92e_init_priv_lock(priv);
1071         _rtl92e_init_priv_task(dev);
1072         priv->ops->get_eeprom_size(dev);
1073         priv->ops->init_adapter_variable(dev);
1074         _rtl92e_get_channel_map(dev);
1075
1076         rtl92e_dm_init(dev);
1077
1078         setup_timer(&priv->watch_dog_timer,
1079                     _rtl92e_watchdog_timer_cb,
1080                     (unsigned long) dev);
1081
1082         setup_timer(&priv->gpio_polling_timer,
1083                     rtl92e_check_rfctrl_gpio_timer,
1084                     (unsigned long)dev);
1085
1086         rtl92e_irq_disable(dev);
1087         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1088                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1089                 return -1;
1090         }
1091
1092         priv->irq = dev->irq;
1093         RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1094
1095         if (_rtl92e_pci_initdescring(dev) != 0) {
1096                 netdev_err(dev, "Endopoints initialization failed");
1097                 free_irq(dev->irq, dev);
1098                 return -1;
1099         }
1100
1101         return 0;
1102 }
1103
1104 /***************************************************************************
1105         -------------------------------WATCHDOG STUFF---------------------------
1106 ***************************************************************************/
1107 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1108 {
1109         int i = 0;
1110         struct r8192_priv *priv = rtllib_priv(dev);
1111
1112         for (i = 0; i <= MGNT_QUEUE; i++) {
1113                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1114                         continue;
1115                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1116                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1117                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1118                         return 0;
1119                 }
1120         }
1121         return 1;
1122 }
1123
1124 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1125 {
1126         struct r8192_priv *priv = rtllib_priv(dev);
1127         u8      QueueID;
1128         bool    bCheckFwTxCnt = false;
1129         struct rtl8192_tx_ring  *ring = NULL;
1130         struct sk_buff *skb = NULL;
1131         struct cb_desc *tcb_desc = NULL;
1132         unsigned long flags = 0;
1133
1134         switch (priv->rtllib->ps) {
1135         case RTLLIB_PS_DISABLED:
1136                 break;
1137         case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
1138                 break;
1139         default:
1140                 break;
1141         }
1142         spin_lock_irqsave(&priv->irq_th_lock, flags);
1143         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1144                 if (QueueID == TXCMD_QUEUE)
1145                         continue;
1146
1147                 if (QueueID == BEACON_QUEUE)
1148                         continue;
1149
1150                 ring = &priv->tx_ring[QueueID];
1151
1152                 if (skb_queue_len(&ring->queue) == 0) {
1153                         continue;
1154                 } else {
1155                         skb = (&ring->queue)->next;
1156                         tcb_desc = (struct cb_desc *)(skb->cb +
1157                                     MAX_DEV_ADDR_SIZE);
1158                         tcb_desc->nStuckCount++;
1159                         bCheckFwTxCnt = true;
1160                         if (tcb_desc->nStuckCount > 1)
1161                                 netdev_info(dev,
1162                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1163                                             __func__, QueueID,
1164                                             tcb_desc->nStuckCount);
1165                 }
1166         }
1167         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1168
1169         if (bCheckFwTxCnt) {
1170                 if (priv->ops->TxCheckStuckHandler(dev)) {
1171                         RT_TRACE(COMP_RESET,
1172                                  "TxCheckStuck(): Fw indicates no Tx condition!\n");
1173                         return RESET_TYPE_SILENT;
1174                 }
1175         }
1176
1177         return RESET_TYPE_NORESET;
1178 }
1179
1180 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1181 {
1182         struct r8192_priv *priv = rtllib_priv(dev);
1183
1184         if (priv->ops->RxCheckStuckHandler(dev)) {
1185                 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1186                 return RESET_TYPE_SILENT;
1187         }
1188
1189         return RESET_TYPE_NORESET;
1190 }
1191
1192 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1193 {
1194         struct r8192_priv *priv = rtllib_priv(dev);
1195         enum reset_type TxResetType = RESET_TYPE_NORESET;
1196         enum reset_type RxResetType = RESET_TYPE_NORESET;
1197         enum rt_rf_power_state rfState;
1198
1199         rfState = priv->rtllib->eRFPowerState;
1200
1201         if (rfState == eRfOn)
1202                 TxResetType = _rtl92e_tx_check_stuck(dev);
1203
1204         if (rfState == eRfOn &&
1205             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1206             (priv->rtllib->state == RTLLIB_LINKED))
1207                 RxResetType = _rtl92e_rx_check_stuck(dev);
1208
1209         if (TxResetType == RESET_TYPE_NORMAL ||
1210             RxResetType == RESET_TYPE_NORMAL) {
1211                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1212                             __func__, TxResetType, RxResetType);
1213                 return RESET_TYPE_NORMAL;
1214         } else if (TxResetType == RESET_TYPE_SILENT ||
1215                    RxResetType == RESET_TYPE_SILENT) {
1216                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1217                             __func__, TxResetType, RxResetType);
1218                 return RESET_TYPE_SILENT;
1219         } else {
1220                 return RESET_TYPE_NORESET;
1221         }
1222
1223 }
1224
1225 static void _rtl92e_if_silent_reset(struct net_device *dev)
1226 {
1227         struct r8192_priv *priv = rtllib_priv(dev);
1228         u8      reset_times = 0;
1229         int reset_status = 0;
1230         struct rtllib_device *ieee = priv->rtllib;
1231         unsigned long flag;
1232
1233         if (priv->ResetProgress == RESET_TYPE_NORESET) {
1234
1235                 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1236
1237                 priv->ResetProgress = RESET_TYPE_SILENT;
1238
1239                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1240                 if (priv->RFChangeInProgress) {
1241                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1242                         goto END;
1243                 }
1244                 priv->RFChangeInProgress = true;
1245                 priv->bResetInProgress = true;
1246                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1247
1248 RESET_START:
1249
1250                 mutex_lock(&priv->wx_mutex);
1251
1252                 if (priv->rtllib->state == RTLLIB_LINKED)
1253                         rtl92e_leisure_ps_leave(dev);
1254
1255                 if (priv->up) {
1256                         netdev_info(dev, "%s():the driver is not up.\n",
1257                                     __func__);
1258                         mutex_unlock(&priv->wx_mutex);
1259                         return;
1260                 }
1261                 priv->up = 0;
1262
1263                 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1264                           __func__);
1265                 mdelay(1000);
1266                 RT_TRACE(COMP_RESET,
1267                          "%s():111111111111111111111111======>start to down the driver\n",
1268                          __func__);
1269
1270                 if (!netif_queue_stopped(dev))
1271                         netif_stop_queue(dev);
1272
1273                 rtl92e_irq_disable(dev);
1274                 del_timer_sync(&priv->watch_dog_timer);
1275                 _rtl92e_cancel_deferred_work(priv);
1276                 rtl92e_dm_deinit(dev);
1277                 rtllib_stop_scan_syncro(ieee);
1278
1279                 if (ieee->state == RTLLIB_LINKED) {
1280                         mutex_lock(&ieee->wx_mutex);
1281                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1282                         rtllib_stop_send_beacons(priv->rtllib);
1283                         del_timer_sync(&ieee->associate_timer);
1284                         cancel_delayed_work(&ieee->associate_retry_wq);
1285                         rtllib_stop_scan(ieee);
1286                         netif_carrier_off(dev);
1287                         mutex_unlock(&ieee->wx_mutex);
1288                 } else {
1289                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1290                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1291                 }
1292
1293                 rtl92e_dm_backup_state(dev);
1294
1295                 mutex_unlock(&priv->wx_mutex);
1296                 RT_TRACE(COMP_RESET,
1297                          "%s():<==========down process is finished\n",
1298                          __func__);
1299
1300                 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1301                          __func__);
1302                 reset_status = _rtl92e_up(dev, true);
1303
1304                 RT_TRACE(COMP_RESET,
1305                          "%s():<===========up process is finished\n", __func__);
1306                 if (reset_status == -1) {
1307                         if (reset_times < 3) {
1308                                 reset_times++;
1309                                 goto RESET_START;
1310                         } else {
1311                                 netdev_warn(dev, "%s(): Reset Failed\n",
1312                                             __func__);
1313                         }
1314                 }
1315
1316                 ieee->is_silent_reset = 1;
1317
1318                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1319                 priv->RFChangeInProgress = false;
1320                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1321
1322                 rtl92e_enable_hw_security_config(dev);
1323
1324                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1325                     IW_MODE_INFRA) {
1326                         ieee->set_chan(ieee->dev,
1327                                        ieee->current_network.channel);
1328
1329                         schedule_work(&ieee->associate_complete_wq);
1330
1331                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1332                            IW_MODE_ADHOC) {
1333                         ieee->set_chan(ieee->dev,
1334                                        ieee->current_network.channel);
1335                         ieee->link_change(ieee->dev);
1336
1337                         notify_wx_assoc_event(ieee);
1338
1339                         rtllib_start_send_beacons(ieee);
1340
1341                         netif_carrier_on(ieee->dev);
1342                 }
1343
1344                 rtl92e_cam_restore(dev);
1345                 rtl92e_dm_restore_state(dev);
1346 END:
1347                 priv->ResetProgress = RESET_TYPE_NORESET;
1348                 priv->reset_count++;
1349
1350                 priv->bForcedSilentReset = false;
1351                 priv->bResetInProgress = false;
1352
1353                 rtl92e_writeb(dev, UFWP, 1);
1354                 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1355                          priv->reset_count);
1356         }
1357 }
1358
1359 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1360                                     u32 *TotalRxDataNum)
1361 {
1362         u16     SlotIndex;
1363         u8      i;
1364
1365         *TotalRxBcnNum = 0;
1366         *TotalRxDataNum = 0;
1367
1368         SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1369                         (priv->rtllib->LinkDetectInfo.SlotNum);
1370         priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1371                         priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1372         priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1373                         priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1374         for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1375                 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1376                 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1377         }
1378 }
1379
1380 static void _rtl92e_watchdog_wq_cb(void *data)
1381 {
1382         struct r8192_priv *priv = container_of_dwork_rsl(data,
1383                                   struct r8192_priv, watch_dog_wq);
1384         struct net_device *dev = priv->rtllib->dev;
1385         struct rtllib_device *ieee = priv->rtllib;
1386         enum reset_type ResetType = RESET_TYPE_NORESET;
1387         static u8 check_reset_cnt;
1388         unsigned long flags;
1389         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1390                                         (&(priv->rtllib->PowerSaveControl));
1391         bool bBusyTraffic = false;
1392         bool    bHigherBusyTraffic = false;
1393         bool    bHigherBusyRxTraffic = false;
1394         bool bEnterPS = false;
1395
1396         if (!priv->up || priv->bHwRadioOff)
1397                 return;
1398
1399         if (priv->rtllib->state >= RTLLIB_LINKED) {
1400                 if (priv->rtllib->CntAfterLink < 2)
1401                         priv->rtllib->CntAfterLink++;
1402         } else {
1403                 priv->rtllib->CntAfterLink = 0;
1404         }
1405
1406         rtl92e_dm_watchdog(dev);
1407
1408         if (rtllib_act_scanning(priv->rtllib, false) == false) {
1409                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1410                      RTLLIB_NOLINK) &&
1411                      (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1412                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1413                         if ((ieee->PowerSaveControl.ReturnPoint ==
1414                              IPS_CALLBACK_NONE) &&
1415                              (!ieee->bNetPromiscuousMode)) {
1416                                 RT_TRACE(COMP_PS,
1417                                          "====================>haha: rtl92e_ips_enter()\n");
1418                                 rtl92e_ips_enter(dev);
1419                         }
1420                 }
1421         }
1422         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1423              IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1424                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1425                 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1426                         bBusyTraffic = true;
1427
1428
1429                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1430                     ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1431                         bHigherBusyTraffic = true;
1432                         if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1433                                 bHigherBusyRxTraffic = true;
1434                         else
1435                                 bHigherBusyRxTraffic = false;
1436                 }
1437
1438                 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1439                     ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1440                     (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1441                         bEnterPS = false;
1442                 else
1443                         bEnterPS = true;
1444
1445                 if (ieee->current_network.beacon_interval < 95)
1446                         bEnterPS = false;
1447
1448                 if (bEnterPS)
1449                         rtl92e_leisure_ps_enter(dev);
1450                 else
1451                         rtl92e_leisure_ps_leave(dev);
1452
1453         } else {
1454                 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1455                 rtl92e_leisure_ps_leave(dev);
1456         }
1457
1458         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1459         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1460         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1461         ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1462
1463         ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1464         ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1465
1466         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1467                 u32     TotalRxBcnNum = 0;
1468                 u32     TotalRxDataNum = 0;
1469
1470                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1471
1472                 if ((TotalRxBcnNum+TotalRxDataNum) == 0)
1473                         priv->check_roaming_cnt++;
1474                 else
1475                         priv->check_roaming_cnt = 0;
1476
1477
1478                 if (priv->check_roaming_cnt > 0) {
1479                         if (ieee->eRFPowerState == eRfOff)
1480                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1481
1482                         netdev_info(dev,
1483                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1484                                     __func__, priv->chan);
1485
1486                         ieee->state = RTLLIB_ASSOCIATING;
1487
1488                         RemovePeerTS(priv->rtllib,
1489                                      priv->rtllib->current_network.bssid);
1490                         ieee->is_roaming = true;
1491                         ieee->is_set_key = false;
1492                         ieee->link_change(dev);
1493                         if (ieee->LedControlHandler)
1494                                 ieee->LedControlHandler(ieee->dev,
1495                                                         LED_CTL_START_TO_LINK);
1496
1497                         notify_wx_assoc_event(ieee);
1498
1499                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1500                              (SEC_ALG_CCMP|SEC_ALG_TKIP)))
1501                                 schedule_delayed_work(
1502                                         &ieee->associate_procedure_wq, 0);
1503
1504                         priv->check_roaming_cnt = 0;
1505                 }
1506                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1507                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1508
1509         }
1510
1511         spin_lock_irqsave(&priv->tx_lock, flags);
1512         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1513             (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1514                 ResetType = _rtl92e_if_check_reset(dev);
1515                 check_reset_cnt = 3;
1516         }
1517         spin_unlock_irqrestore(&priv->tx_lock, flags);
1518
1519         if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1520                 priv->ResetProgress = RESET_TYPE_NORMAL;
1521                 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1522                 return;
1523         }
1524
1525         if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1526               ResetType == RESET_TYPE_SILENT)))
1527                 _rtl92e_if_silent_reset(dev);
1528         priv->force_reset = false;
1529         priv->bForcedSilentReset = false;
1530         priv->bResetInProgress = false;
1531         RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1532 }
1533
1534 static void _rtl92e_watchdog_timer_cb(unsigned long data)
1535 {
1536         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
1537
1538         schedule_delayed_work(&priv->watch_dog_wq, 0);
1539         mod_timer(&priv->watch_dog_timer, jiffies +
1540                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1541 }
1542
1543 /****************************************************************************
1544  ---------------------------- NIC TX/RX STUFF---------------------------
1545 *****************************************************************************/
1546 void rtl92e_rx_enable(struct net_device *dev)
1547 {
1548         struct r8192_priv *priv = rtllib_priv(dev);
1549
1550         priv->ops->rx_enable(dev);
1551 }
1552
1553 void rtl92e_tx_enable(struct net_device *dev)
1554 {
1555         struct r8192_priv *priv = rtllib_priv(dev);
1556
1557         priv->ops->tx_enable(dev);
1558
1559         rtllib_reset_queue(priv->rtllib);
1560 }
1561
1562
1563 static void _rtl92e_free_rx_ring(struct net_device *dev)
1564 {
1565         struct r8192_priv *priv = rtllib_priv(dev);
1566         int i, rx_queue_idx;
1567
1568         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1569              rx_queue_idx++) {
1570                 for (i = 0; i < priv->rxringcount; i++) {
1571                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1572
1573                         if (!skb)
1574                                 continue;
1575
1576                         pci_unmap_single(priv->pdev,
1577                                 *((dma_addr_t *)skb->cb),
1578                                 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1579                                 kfree_skb(skb);
1580                 }
1581
1582                 pci_free_consistent(priv->pdev,
1583                         sizeof(*priv->rx_ring[rx_queue_idx]) *
1584                         priv->rxringcount,
1585                         priv->rx_ring[rx_queue_idx],
1586                         priv->rx_ring_dma[rx_queue_idx]);
1587                 priv->rx_ring[rx_queue_idx] = NULL;
1588         }
1589 }
1590
1591 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1592 {
1593         struct r8192_priv *priv = rtllib_priv(dev);
1594         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1595
1596         while (skb_queue_len(&ring->queue)) {
1597                 struct tx_desc *entry = &ring->desc[ring->idx];
1598                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1599
1600                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1601                         skb->len, PCI_DMA_TODEVICE);
1602                 kfree_skb(skb);
1603                 ring->idx = (ring->idx + 1) % ring->entries;
1604         }
1605
1606         pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
1607         ring->desc, ring->dma);
1608         ring->desc = NULL;
1609 }
1610
1611 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1612                                    int rate)
1613 {
1614         struct r8192_priv *priv = rtllib_priv(dev);
1615         int ret;
1616         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1617                                     MAX_DEV_ADDR_SIZE);
1618         u8 queue_index = tcb_desc->queue_index;
1619
1620         if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1621              priv->bResetInProgress) {
1622                 kfree_skb(skb);
1623                 return;
1624         }
1625
1626         if (queue_index == TXCMD_QUEUE)
1627                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1628                             __func__);
1629
1630         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1631         skb_push(skb, priv->rtllib->tx_headroom);
1632         ret = _rtl92e_tx(dev, skb);
1633
1634         if (queue_index != MGNT_QUEUE) {
1635                 priv->rtllib->stats.tx_bytes += (skb->len -
1636                                                  priv->rtllib->tx_headroom);
1637                 priv->rtllib->stats.tx_packets++;
1638         }
1639
1640         if (ret != 0)
1641                 kfree_skb(skb);
1642 }
1643
1644 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1645 {
1646         struct r8192_priv *priv = rtllib_priv(dev);
1647         int ret;
1648         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1649                                     MAX_DEV_ADDR_SIZE);
1650         u8 queue_index = tcb_desc->queue_index;
1651
1652         if (queue_index != TXCMD_QUEUE) {
1653                 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1654                      !priv->up || priv->bResetInProgress) {
1655                         kfree_skb(skb);
1656                         return 0;
1657                 }
1658         }
1659
1660         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1661         if (queue_index == TXCMD_QUEUE) {
1662                 _rtl92e_tx_cmd(dev, skb);
1663                 return 0;
1664         }
1665
1666         tcb_desc->RATRIndex = 7;
1667         tcb_desc->bTxDisableRateFallBack = 1;
1668         tcb_desc->bTxUseDriverAssingedRate = 1;
1669         tcb_desc->bTxEnableFwCalcDur = 1;
1670         skb_push(skb, priv->rtllib->tx_headroom);
1671         ret = _rtl92e_tx(dev, skb);
1672         if (ret != 0)
1673                 kfree_skb(skb);
1674         return ret;
1675 }
1676
1677 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1678 {
1679         struct r8192_priv *priv = rtllib_priv(dev);
1680
1681         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1682
1683         while (skb_queue_len(&ring->queue)) {
1684                 struct tx_desc *entry = &ring->desc[ring->idx];
1685                 struct sk_buff *skb;
1686
1687                 if (prio != BEACON_QUEUE) {
1688                         if (entry->OWN)
1689                                 return;
1690                         ring->idx = (ring->idx + 1) % ring->entries;
1691                 }
1692
1693                 skb = __skb_dequeue(&ring->queue);
1694                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1695                 skb->len, PCI_DMA_TODEVICE);
1696
1697                 kfree_skb(skb);
1698         }
1699         if (prio != BEACON_QUEUE)
1700                 tasklet_schedule(&priv->irq_tx_tasklet);
1701 }
1702
1703 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1704 {
1705         struct r8192_priv *priv = rtllib_priv(dev);
1706         struct rtl8192_tx_ring *ring;
1707         struct tx_desc_cmd *entry;
1708         unsigned int idx;
1709         struct cb_desc *tcb_desc;
1710         unsigned long flags;
1711
1712         spin_lock_irqsave(&priv->irq_th_lock, flags);
1713         ring = &priv->tx_ring[TXCMD_QUEUE];
1714
1715         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1716         entry = (struct tx_desc_cmd *) &ring->desc[idx];
1717
1718         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1719
1720         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1721
1722         __skb_queue_tail(&ring->queue, skb);
1723         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1724 }
1725
1726 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1727 {
1728         struct r8192_priv *priv = rtllib_priv(dev);
1729         struct rtl8192_tx_ring  *ring;
1730         unsigned long flags;
1731         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1732                                     MAX_DEV_ADDR_SIZE);
1733         struct tx_desc *pdesc = NULL;
1734         struct rtllib_hdr_1addr *header = NULL;
1735         u16 fc = 0, type = 0, stype = 0;
1736         bool  multi_addr = false, broad_addr = false, uni_addr = false;
1737         u8 *pda_addr = NULL;
1738         int   idx;
1739         u32 fwinfo_size = 0;
1740
1741         if (priv->bdisable_nic) {
1742                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1743                             __func__);
1744                 return skb->len;
1745         }
1746
1747         priv->rtllib->bAwakePktSent = true;
1748
1749         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1750
1751         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1752         fc = le16_to_cpu(header->frame_ctl);
1753         type = WLAN_FC_GET_TYPE(fc);
1754         stype = WLAN_FC_GET_STYPE(fc);
1755         pda_addr = header->addr1;
1756
1757         if (is_broadcast_ether_addr(pda_addr))
1758                 broad_addr = true;
1759         else if (is_multicast_ether_addr(pda_addr))
1760                 multi_addr = true;
1761         else
1762                 uni_addr = true;
1763
1764         if (uni_addr)
1765                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1766         else if (multi_addr)
1767                 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1768         else
1769                 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1770
1771         spin_lock_irqsave(&priv->irq_th_lock, flags);
1772         ring = &priv->tx_ring[tcb_desc->queue_index];
1773         if (tcb_desc->queue_index != BEACON_QUEUE)
1774                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1775         else
1776                 idx = 0;
1777
1778         pdesc = &ring->desc[idx];
1779         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1780                 netdev_warn(dev,
1781                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1782                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1783                             skb_queue_len(&ring->queue));
1784                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1785                 return skb->len;
1786         }
1787
1788         if (type == RTLLIB_FTYPE_DATA) {
1789                 if (priv->rtllib->LedControlHandler)
1790                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1791         }
1792         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1793         __skb_queue_tail(&ring->queue, skb);
1794         pdesc->OWN = 1;
1795         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1796         netif_trans_update(dev);
1797
1798         rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1799         return 0;
1800 }
1801
1802 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1803 {
1804         struct r8192_priv *priv = rtllib_priv(dev);
1805         struct rx_desc *entry = NULL;
1806         int i, rx_queue_idx;
1807
1808         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1809                 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1810                                               sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1811                                               &priv->rx_ring_dma[rx_queue_idx]);
1812                 if (!priv->rx_ring[rx_queue_idx] ||
1813                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1814                         netdev_warn(dev, "Cannot allocate RX ring\n");
1815                         return -ENOMEM;
1816                 }
1817
1818                 priv->rx_idx[rx_queue_idx] = 0;
1819
1820                 for (i = 0; i < priv->rxringcount; i++) {
1821                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1822                         dma_addr_t *mapping;
1823
1824                         entry = &priv->rx_ring[rx_queue_idx][i];
1825                         if (!skb)
1826                                 return 0;
1827                         skb->dev = dev;
1828                         priv->rx_buf[rx_queue_idx][i] = skb;
1829                         mapping = (dma_addr_t *)skb->cb;
1830                         *mapping = pci_map_single(priv->pdev,
1831                                                   skb_tail_pointer_rsl(skb),
1832                                                   priv->rxbuffersize,
1833                                                   PCI_DMA_FROMDEVICE);
1834                         if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1835                                 dev_kfree_skb_any(skb);
1836                                 return -1;
1837                         }
1838                         entry->BufferAddress = *mapping;
1839
1840                         entry->Length = priv->rxbuffersize;
1841                         entry->OWN = 1;
1842                 }
1843
1844                 if (entry)
1845                         entry->EOR = 1;
1846         }
1847         return 0;
1848 }
1849
1850 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1851                                  unsigned int entries)
1852 {
1853         struct r8192_priv *priv = rtllib_priv(dev);
1854         struct tx_desc *ring;
1855         dma_addr_t dma;
1856         int i;
1857
1858         ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1859         if (!ring || (unsigned long)ring & 0xFF) {
1860                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1861                 return -ENOMEM;
1862         }
1863
1864         priv->tx_ring[prio].desc = ring;
1865         priv->tx_ring[prio].dma = dma;
1866         priv->tx_ring[prio].idx = 0;
1867         priv->tx_ring[prio].entries = entries;
1868         skb_queue_head_init(&priv->tx_ring[prio].queue);
1869
1870         for (i = 0; i < entries; i++)
1871                 ring[i].NextDescAddress =
1872                         (u32)dma + ((i + 1) % entries) *
1873                         sizeof(*ring);
1874
1875         return 0;
1876 }
1877
1878 static short _rtl92e_pci_initdescring(struct net_device *dev)
1879 {
1880         u32 ret;
1881         int i;
1882         struct r8192_priv *priv = rtllib_priv(dev);
1883
1884         ret = _rtl92e_alloc_rx_ring(dev);
1885         if (ret)
1886                 return ret;
1887
1888         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1889                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1890                 if (ret)
1891                         goto err_free_rings;
1892         }
1893
1894         return 0;
1895
1896 err_free_rings:
1897         _rtl92e_free_rx_ring(dev);
1898         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1899                 if (priv->tx_ring[i].desc)
1900                         _rtl92e_free_tx_ring(dev, i);
1901         return 1;
1902 }
1903
1904 void rtl92e_reset_desc_ring(struct net_device *dev)
1905 {
1906         struct r8192_priv *priv = rtllib_priv(dev);
1907         int i, rx_queue_idx;
1908         unsigned long flags = 0;
1909
1910         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1911                 if (priv->rx_ring[rx_queue_idx]) {
1912                         struct rx_desc *entry = NULL;
1913
1914                         for (i = 0; i < priv->rxringcount; i++) {
1915                                 entry = &priv->rx_ring[rx_queue_idx][i];
1916                                 entry->OWN = 1;
1917                         }
1918                         priv->rx_idx[rx_queue_idx] = 0;
1919                 }
1920         }
1921
1922         spin_lock_irqsave(&priv->irq_th_lock, flags);
1923         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1924                 if (priv->tx_ring[i].desc) {
1925                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1926
1927                         while (skb_queue_len(&ring->queue)) {
1928                                 struct tx_desc *entry = &ring->desc[ring->idx];
1929                                 struct sk_buff *skb =
1930                                                  __skb_dequeue(&ring->queue);
1931
1932                                 pci_unmap_single(priv->pdev,
1933                                                  entry->TxBuffAddr,
1934                                                  skb->len, PCI_DMA_TODEVICE);
1935                                 kfree_skb(skb);
1936                                 ring->idx = (ring->idx + 1) % ring->entries;
1937                         }
1938                         ring->idx = 0;
1939                 }
1940         }
1941         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1942 }
1943
1944 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1945                                     struct rtllib_rx_stats *stats)
1946 {
1947         struct r8192_priv *priv = rtllib_priv(dev);
1948
1949         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1950                 stats->mac_time = priv->LastRxDescTSF;
1951         else
1952                 priv->LastRxDescTSF = stats->mac_time;
1953 }
1954
1955 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1956 {
1957         long    signal_power;
1958
1959         signal_power = (long)((signal_strength_index + 1) >> 1);
1960         signal_power -= 95;
1961
1962         return signal_power;
1963 }
1964
1965
1966 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1967                                  struct rtllib_rx_stats *pprevious_stats)
1968 {
1969         int weighting = 0;
1970
1971
1972         if (priv->stats.recv_signal_power == 0)
1973                 priv->stats.recv_signal_power =
1974                                          pprevious_stats->RecvSignalPower;
1975
1976         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1977                 weighting = 5;
1978         else if (pprevious_stats->RecvSignalPower <
1979                  priv->stats.recv_signal_power)
1980                 weighting = (-5);
1981         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1982                                         pprevious_stats->RecvSignalPower +
1983                                         weighting) / 6;
1984 }
1985
1986 u8 rtl92e_rx_db_to_percent(s8 antpower)
1987 {
1988         if ((antpower <= -100) || (antpower >= 20))
1989                 return  0;
1990         else if (antpower >= 0)
1991                 return  100;
1992         else
1993                 return  100 + antpower;
1994
1995 }       /* QueryRxPwrPercentage */
1996
1997 u8 rtl92e_evm_db_to_percent(s8 value)
1998 {
1999         s8 ret_val;
2000
2001         ret_val = value;
2002
2003         if (ret_val >= 0)
2004                 ret_val = 0;
2005         if (ret_val <= -33)
2006                 ret_val = -33;
2007         ret_val = 0 - ret_val;
2008         ret_val *= 3;
2009         if (ret_val == 99)
2010                 ret_val = 100;
2011         return ret_val;
2012 }
2013
2014 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2015                             struct rtllib_rx_stats *ptarget_stats)
2016 {
2017         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2018         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2019 }
2020
2021
2022
2023 static void _rtl92e_rx_normal(struct net_device *dev)
2024 {
2025         struct r8192_priv *priv = rtllib_priv(dev);
2026         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2027         bool unicast_packet = false;
2028         bool bLedBlinking = true;
2029         u16 fc = 0, type = 0;
2030         u32 skb_len = 0;
2031         int rx_queue_idx = RX_MPDU_QUEUE;
2032
2033         struct rtllib_rx_stats stats = {
2034                 .signal = 0,
2035                 .noise = (u8) -98,
2036                 .rate = 0,
2037                 .freq = RTLLIB_24GHZ_BAND,
2038         };
2039         unsigned int count = priv->rxringcount;
2040
2041         stats.nic_type = NIC_8192E;
2042
2043         while (count--) {
2044                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2045                                         [priv->rx_idx[rx_queue_idx]];
2046                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2047                                       [priv->rx_idx[rx_queue_idx]];
2048                 struct sk_buff *new_skb;
2049
2050                 if (pdesc->OWN)
2051                         return;
2052                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2053                 pdesc, skb))
2054                         goto done;
2055                 new_skb = dev_alloc_skb(priv->rxbuffersize);
2056                 /* if allocation of new skb failed - drop current packet
2057                  * and reuse skb
2058                  */
2059                 if (unlikely(!new_skb))
2060                         goto done;
2061
2062                 pci_unmap_single(priv->pdev,
2063                                 *((dma_addr_t *)skb->cb),
2064                                 priv->rxbuffersize,
2065                                 PCI_DMA_FROMDEVICE);
2066
2067                 skb_put(skb, pdesc->Length);
2068                 skb_reserve(skb, stats.RxDrvInfoSize +
2069                         stats.RxBufShift);
2070                 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2071                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2072                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2073                         /* unicast packet */
2074                         unicast_packet = true;
2075                 }
2076                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2077                 type = WLAN_FC_GET_TYPE(fc);
2078                 if (type == RTLLIB_FTYPE_MGMT)
2079                         bLedBlinking = false;
2080
2081                 if (bLedBlinking)
2082                         if (priv->rtllib->LedControlHandler)
2083                                 priv->rtllib->LedControlHandler(dev,
2084                                                         LED_CTL_RX);
2085
2086                 if (stats.bCRC) {
2087                         if (type != RTLLIB_FTYPE_MGMT)
2088                                 priv->stats.rxdatacrcerr++;
2089                         else
2090                                 priv->stats.rxmgmtcrcerr++;
2091                 }
2092
2093                 skb_len = skb->len;
2094
2095                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2096                         dev_kfree_skb_any(skb);
2097                 } else {
2098                         priv->stats.rxok++;
2099                         if (unicast_packet)
2100                                 priv->stats.rxbytesunicast += skb_len;
2101                 }
2102
2103                 skb = new_skb;
2104                 skb->dev = dev;
2105
2106                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2107                                                                  skb;
2108                 *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
2109                                             skb_tail_pointer_rsl(skb),
2110                                             priv->rxbuffersize,
2111                                             PCI_DMA_FROMDEVICE);
2112                 if (pci_dma_mapping_error(priv->pdev,
2113                                           *((dma_addr_t *)skb->cb))) {
2114                         dev_kfree_skb_any(skb);
2115                         return;
2116                 }
2117 done:
2118                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2119                 pdesc->OWN = 1;
2120                 pdesc->Length = priv->rxbuffersize;
2121                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
2122                         pdesc->EOR = 1;
2123                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2124                                               priv->rxringcount;
2125         }
2126
2127 }
2128
2129 static void _rtl92e_tx_resume(struct net_device *dev)
2130 {
2131         struct r8192_priv *priv = rtllib_priv(dev);
2132         struct rtllib_device *ieee = priv->rtllib;
2133         struct sk_buff *skb;
2134         int queue_index;
2135
2136         for (queue_index = BK_QUEUE;
2137              queue_index < MAX_QUEUE_SIZE; queue_index++) {
2138                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2139                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2140                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2141                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2142                 }
2143         }
2144 }
2145
2146 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2147 {
2148         _rtl92e_tx_resume(priv->rtllib->dev);
2149 }
2150
2151 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2152 {
2153         _rtl92e_rx_normal(priv->rtllib->dev);
2154
2155         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2156                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2157 }
2158
2159 /****************************************************************************
2160  ---------------------------- NIC START/CLOSE STUFF---------------------------
2161 *****************************************************************************/
2162 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2163 {
2164         cancel_delayed_work_sync(&priv->watch_dog_wq);
2165         cancel_delayed_work_sync(&priv->update_beacon_wq);
2166         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2167         cancel_work_sync(&priv->reset_wq);
2168         cancel_work_sync(&priv->qos_activate);
2169 }
2170
2171 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2172 {
2173         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2174                 return -1;
2175         return 0;
2176 }
2177
2178 static int _rtl92e_open(struct net_device *dev)
2179 {
2180         struct r8192_priv *priv = rtllib_priv(dev);
2181         int ret;
2182
2183         mutex_lock(&priv->wx_mutex);
2184         ret = _rtl92e_try_up(dev);
2185         mutex_unlock(&priv->wx_mutex);
2186         return ret;
2187
2188 }
2189
2190 static int _rtl92e_try_up(struct net_device *dev)
2191 {
2192         struct r8192_priv *priv = rtllib_priv(dev);
2193
2194         if (priv->up == 1)
2195                 return -1;
2196         return _rtl92e_up(dev, false);
2197 }
2198
2199
2200 static int _rtl92e_close(struct net_device *dev)
2201 {
2202         struct r8192_priv *priv = rtllib_priv(dev);
2203         int ret;
2204
2205         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2206                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2207                 rtllib_stop_scan(priv->rtllib);
2208         }
2209
2210         mutex_lock(&priv->wx_mutex);
2211
2212         ret = _rtl92e_down(dev, true);
2213
2214         mutex_unlock(&priv->wx_mutex);
2215
2216         return ret;
2217
2218 }
2219
2220 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2221 {
2222         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2223                 return -1;
2224
2225         return 0;
2226 }
2227
2228 void rtl92e_commit(struct net_device *dev)
2229 {
2230         struct r8192_priv *priv = rtllib_priv(dev);
2231
2232         if (priv->up == 0)
2233                 return;
2234         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2235         rtl92e_irq_disable(dev);
2236         priv->ops->stop_adapter(dev, true);
2237         _rtl92e_up(dev, false);
2238 }
2239
2240 static void _rtl92e_restart(void *data)
2241 {
2242         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2243                                   reset_wq);
2244         struct net_device *dev = priv->rtllib->dev;
2245
2246         mutex_lock(&priv->wx_mutex);
2247
2248         rtl92e_commit(dev);
2249
2250         mutex_unlock(&priv->wx_mutex);
2251 }
2252
2253 static void _rtl92e_set_multicast(struct net_device *dev)
2254 {
2255         struct r8192_priv *priv = rtllib_priv(dev);
2256         short promisc;
2257
2258         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2259         priv->promisc = promisc;
2260
2261 }
2262
2263
2264 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2265 {
2266         struct r8192_priv *priv = rtllib_priv(dev);
2267         struct sockaddr *addr = mac;
2268
2269         mutex_lock(&priv->wx_mutex);
2270
2271         ether_addr_copy(dev->dev_addr, addr->sa_data);
2272
2273         schedule_work(&priv->reset_wq);
2274         mutex_unlock(&priv->wx_mutex);
2275
2276         return 0;
2277 }
2278
2279 /* based on ipw2200 driver */
2280 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2281 {
2282         struct r8192_priv *priv = rtllib_priv(dev);
2283         struct iwreq *wrq = (struct iwreq *)rq;
2284         int ret = -1;
2285         struct rtllib_device *ieee = priv->rtllib;
2286         u32 key[4];
2287         const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2288         struct iw_point *p = &wrq->u.data;
2289         struct ieee_param *ipw = NULL;
2290
2291         mutex_lock(&priv->wx_mutex);
2292
2293         switch (cmd) {
2294         case RTL_IOCTL_WPA_SUPPLICANT:
2295                 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
2296                         ret = -EINVAL;
2297                         goto out;
2298                 }
2299
2300                 ipw = memdup_user(p->pointer, p->length);
2301                 if (IS_ERR(ipw)) {
2302                         ret = PTR_ERR(ipw);
2303                         goto out;
2304                 }
2305
2306                 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
2307                         if (ipw->u.crypt.set_tx) {
2308                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2309                                         ieee->pairwise_key_type = KEY_TYPE_CCMP;
2310                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2311                                         ieee->pairwise_key_type = KEY_TYPE_TKIP;
2312                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2313                                         if (ipw->u.crypt.key_len == 13)
2314                                                 ieee->pairwise_key_type =
2315                                                          KEY_TYPE_WEP104;
2316                                         else if (ipw->u.crypt.key_len == 5)
2317                                                 ieee->pairwise_key_type =
2318                                                          KEY_TYPE_WEP40;
2319                                 } else {
2320                                         ieee->pairwise_key_type = KEY_TYPE_NA;
2321                                 }
2322
2323                                 if (ieee->pairwise_key_type) {
2324                                         if (is_zero_ether_addr(ieee->ap_mac_addr))
2325                                                 ieee->iw_mode = IW_MODE_ADHOC;
2326                                         memcpy((u8 *)key, ipw->u.crypt.key, 16);
2327                                         rtl92e_enable_hw_security_config(dev);
2328                                         rtl92e_set_swcam(dev, 4,
2329                                                          ipw->u.crypt.idx,
2330                                                          ieee->pairwise_key_type,
2331                                                          (u8 *)ieee->ap_mac_addr,
2332                                                          0, key, 0);
2333                                         rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
2334                                                        ieee->pairwise_key_type,
2335                                                        (u8 *)ieee->ap_mac_addr,
2336                                                        0, key);
2337                                         if (ieee->iw_mode == IW_MODE_ADHOC) {
2338                                                 rtl92e_set_swcam(dev,
2339                                                                  ipw->u.crypt.idx,
2340                                                                  ipw->u.crypt.idx,
2341                                                                  ieee->pairwise_key_type,
2342                                                                  (u8 *)ieee->ap_mac_addr,
2343                                                                  0, key, 0);
2344                                                 rtl92e_set_key(dev,
2345                                                                ipw->u.crypt.idx,
2346                                                                ipw->u.crypt.idx,
2347                                                                ieee->pairwise_key_type,
2348                                                                (u8 *)ieee->ap_mac_addr,
2349                                                                0, key);
2350                                         }
2351                                 }
2352                                 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
2353                                      && ieee->pHTInfo->bCurrentHTSupport) {
2354                                         rtl92e_writeb(dev, 0x173, 1);
2355                                 }
2356
2357                         } else {
2358                                 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2359                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2360                                         ieee->group_key_type = KEY_TYPE_CCMP;
2361                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2362                                         ieee->group_key_type = KEY_TYPE_TKIP;
2363                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2364                                         if (ipw->u.crypt.key_len == 13)
2365                                                 ieee->group_key_type =
2366                                                          KEY_TYPE_WEP104;
2367                                         else if (ipw->u.crypt.key_len == 5)
2368                                                 ieee->group_key_type =
2369                                                          KEY_TYPE_WEP40;
2370                                 } else
2371                                         ieee->group_key_type = KEY_TYPE_NA;
2372
2373                                 if (ieee->group_key_type) {
2374                                         rtl92e_set_swcam(dev, ipw->u.crypt.idx,
2375                                                          ipw->u.crypt.idx,
2376                                                          ieee->group_key_type,
2377                                                          broadcast_addr, 0, key,
2378                                                          0);
2379                                         rtl92e_set_key(dev, ipw->u.crypt.idx,
2380                                                        ipw->u.crypt.idx,
2381                                                        ieee->group_key_type,
2382                                                        broadcast_addr, 0, key);
2383                                 }
2384                         }
2385                 }
2386
2387                 ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
2388                                                   0);
2389                 kfree(ipw);
2390                 break;
2391         default:
2392                 ret = -EOPNOTSUPP;
2393                 break;
2394         }
2395
2396 out:
2397         mutex_unlock(&priv->wx_mutex);
2398
2399         return ret;
2400 }
2401
2402
2403 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2404 {
2405         struct net_device *dev = netdev;
2406         struct r8192_priv *priv = rtllib_priv(dev);
2407         unsigned long flags;
2408         u32 inta;
2409         u32 intb;
2410
2411         intb = 0;
2412
2413         if (priv->irq_enabled == 0)
2414                 goto done;
2415
2416         spin_lock_irqsave(&priv->irq_th_lock, flags);
2417
2418         priv->ops->interrupt_recognized(dev, &inta, &intb);
2419         priv->stats.shints++;
2420
2421         if (!inta) {
2422                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2423                 goto done;
2424         }
2425
2426         if (inta == 0xffff) {
2427                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2428                 goto done;
2429         }
2430
2431         priv->stats.ints++;
2432
2433         if (!netif_running(dev)) {
2434                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2435                 goto done;
2436         }
2437
2438         if (inta & IMR_TBDOK) {
2439                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2440                 priv->stats.txbeaconokint++;
2441         }
2442
2443         if (inta & IMR_TBDER) {
2444                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2445                 priv->stats.txbeaconerr++;
2446         }
2447
2448         if (inta & IMR_BDOK)
2449                 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2450
2451         if (inta  & IMR_MGNTDOK) {
2452                 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2453                 priv->stats.txmanageokint++;
2454                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2455                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2456                 if (priv->rtllib->ack_tx_to_ieee) {
2457                         if (_rtl92e_is_tx_queue_empty(dev)) {
2458                                 priv->rtllib->ack_tx_to_ieee = 0;
2459                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2460                         }
2461                 }
2462                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2463         }
2464
2465         if (inta & IMR_COMDOK) {
2466                 priv->stats.txcmdpktokint++;
2467                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2468         }
2469
2470         if (inta & IMR_HIGHDOK)
2471                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2472
2473         if (inta & IMR_ROK) {
2474                 priv->stats.rxint++;
2475                 priv->InterruptLog.nIMR_ROK++;
2476                 tasklet_schedule(&priv->irq_rx_tasklet);
2477         }
2478
2479         if (inta & IMR_BcnInt) {
2480                 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2481                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2482         }
2483
2484         if (inta & IMR_RDU) {
2485                 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2486                 priv->stats.rxrdu++;
2487                 rtl92e_writel(dev, INTA_MASK,
2488                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2489                 tasklet_schedule(&priv->irq_rx_tasklet);
2490         }
2491
2492         if (inta & IMR_RXFOVW) {
2493                 RT_TRACE(COMP_INTR, "rx overflow !\n");
2494                 priv->stats.rxoverflow++;
2495                 tasklet_schedule(&priv->irq_rx_tasklet);
2496         }
2497
2498         if (inta & IMR_TXFOVW)
2499                 priv->stats.txoverflow++;
2500
2501         if (inta & IMR_BKDOK) {
2502                 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2503                 priv->stats.txbkokint++;
2504                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2505                 _rtl92e_tx_isr(dev, BK_QUEUE);
2506         }
2507
2508         if (inta & IMR_BEDOK) {
2509                 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2510                 priv->stats.txbeokint++;
2511                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2512                 _rtl92e_tx_isr(dev, BE_QUEUE);
2513         }
2514
2515         if (inta & IMR_VIDOK) {
2516                 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2517                 priv->stats.txviokint++;
2518                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2519                 _rtl92e_tx_isr(dev, VI_QUEUE);
2520         }
2521
2522         if (inta & IMR_VODOK) {
2523                 priv->stats.txvookint++;
2524                 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2525                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2526                 _rtl92e_tx_isr(dev, VO_QUEUE);
2527         }
2528
2529         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2530
2531 done:
2532
2533         return IRQ_HANDLED;
2534 }
2535
2536
2537
2538 /****************************************************************************
2539         ---------------------------- PCI_STUFF---------------------------
2540 *****************************************************************************/
2541 static const struct net_device_ops rtl8192_netdev_ops = {
2542         .ndo_open = _rtl92e_open,
2543         .ndo_stop = _rtl92e_close,
2544         .ndo_tx_timeout = _rtl92e_tx_timeout,
2545         .ndo_do_ioctl = _rtl92e_ioctl,
2546         .ndo_set_rx_mode = _rtl92e_set_multicast,
2547         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2548         .ndo_validate_addr = eth_validate_addr,
2549         .ndo_change_mtu = eth_change_mtu,
2550         .ndo_start_xmit = rtllib_xmit,
2551 };
2552
2553 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2554                              const struct pci_device_id *id)
2555 {
2556         unsigned long ioaddr = 0;
2557         struct net_device *dev = NULL;
2558         struct r8192_priv *priv = NULL;
2559         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2560         unsigned long pmem_start, pmem_len, pmem_flags;
2561         int err = -ENOMEM;
2562         u8 revision_id;
2563
2564         RT_TRACE(COMP_INIT, "Configuring chip resources");
2565
2566         if (pci_enable_device(pdev)) {
2567                 dev_err(&pdev->dev, "Failed to enable PCI device");
2568                 return -EIO;
2569         }
2570
2571         pci_set_master(pdev);
2572
2573         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2574                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2575                         dev_info(&pdev->dev,
2576                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2577                         goto err_pci_disable;
2578                 }
2579         }
2580         dev = alloc_rtllib(sizeof(struct r8192_priv));
2581         if (!dev)
2582                 goto err_pci_disable;
2583
2584         err = -ENODEV;
2585
2586         pci_set_drvdata(pdev, dev);
2587         SET_NETDEV_DEV(dev, &pdev->dev);
2588         priv = rtllib_priv(dev);
2589         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2590         priv->pdev = pdev;
2591         priv->rtllib->pdev = pdev;
2592         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2593             (pdev->subsystem_device == 0x3304))
2594                 priv->rtllib->bSupportRemoteWakeUp = 1;
2595         else
2596                 priv->rtllib->bSupportRemoteWakeUp = 0;
2597
2598         pmem_start = pci_resource_start(pdev, 1);
2599         pmem_len = pci_resource_len(pdev, 1);
2600         pmem_flags = pci_resource_flags(pdev, 1);
2601
2602         if (!(pmem_flags & IORESOURCE_MEM)) {
2603                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2604                 goto err_rel_rtllib;
2605         }
2606
2607         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2608                  pmem_start);
2609         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2610                 netdev_err(dev, "request_mem_region failed!");
2611                 goto err_rel_rtllib;
2612         }
2613
2614
2615         ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2616         if (ioaddr == (unsigned long)NULL) {
2617                 netdev_err(dev, "ioremap failed!");
2618                 goto err_rel_mem;
2619         }
2620
2621         dev->mem_start = ioaddr;
2622         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2623
2624         pci_read_config_byte(pdev, 0x08, &revision_id);
2625         /* If the revisionid is 0x10, the device uses rtl8192se. */
2626         if (pdev->device == 0x8192 && revision_id == 0x10)
2627                 goto err_unmap;
2628
2629         priv->ops = ops;
2630
2631         if (rtl92e_check_adapter(pdev, dev) == false)
2632                 goto err_unmap;
2633
2634         dev->irq = pdev->irq;
2635         priv->irq = 0;
2636
2637         dev->netdev_ops = &rtl8192_netdev_ops;
2638
2639         dev->wireless_handlers = &r8192_wx_handlers_def;
2640         dev->ethtool_ops = &rtl819x_ethtool_ops;
2641
2642         dev->type = ARPHRD_ETHER;
2643         dev->watchdog_timeo = HZ * 3;
2644
2645         if (dev_alloc_name(dev, ifname) < 0) {
2646                 RT_TRACE(COMP_INIT,
2647                          "Oops: devname already taken! Trying wlan%%d...\n");
2648                         dev_alloc_name(dev, ifname);
2649         }
2650
2651         RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2652         if (_rtl92e_init(dev) != 0) {
2653                 netdev_warn(dev, "Initialization failed");
2654                 goto err_free_irq;
2655         }
2656
2657         netif_carrier_off(dev);
2658         netif_stop_queue(dev);
2659
2660         if (register_netdev(dev))
2661                 goto err_free_irq;
2662         RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2663
2664         if (priv->polling_timer_on == 0)
2665                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
2666
2667         RT_TRACE(COMP_INIT, "Driver probe completed\n");
2668         return 0;
2669
2670 err_free_irq:
2671         free_irq(dev->irq, dev);
2672         priv->irq = 0;
2673 err_unmap:
2674         iounmap((void __iomem *)ioaddr);
2675 err_rel_mem:
2676         release_mem_region(pmem_start, pmem_len);
2677 err_rel_rtllib:
2678         free_rtllib(dev);
2679 err_pci_disable:
2680         pci_disable_device(pdev);
2681         return err;
2682 }
2683
2684 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2685 {
2686         struct net_device *dev = pci_get_drvdata(pdev);
2687         struct r8192_priv *priv;
2688         u32 i;
2689
2690         if (dev) {
2691                 unregister_netdev(dev);
2692
2693                 priv = rtllib_priv(dev);
2694
2695                 del_timer_sync(&priv->gpio_polling_timer);
2696                 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2697                 priv->polling_timer_on = 0;
2698                 _rtl92e_down(dev, true);
2699                 rtl92e_dm_deinit(dev);
2700                 if (priv->pFirmware) {
2701                         vfree(priv->pFirmware);
2702                         priv->pFirmware = NULL;
2703                 }
2704                 _rtl92e_free_rx_ring(dev);
2705                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2706                         _rtl92e_free_tx_ring(dev, i);
2707
2708                 if (priv->irq) {
2709                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2710                         free_irq(dev->irq, dev);
2711                         priv->irq = 0;
2712                 }
2713
2714                 if (dev->mem_start != 0) {
2715                         iounmap((void __iomem *)dev->mem_start);
2716                         release_mem_region(pci_resource_start(pdev, 1),
2717                                         pci_resource_len(pdev, 1));
2718                 }
2719
2720                 free_rtllib(dev);
2721         } else {
2722                 priv = rtllib_priv(dev);
2723         }
2724
2725         pci_disable_device(pdev);
2726         RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2727 }
2728
2729 bool rtl92e_enable_nic(struct net_device *dev)
2730 {
2731         bool init_status = true;
2732         struct r8192_priv *priv = rtllib_priv(dev);
2733         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2734                                         (&(priv->rtllib->PowerSaveControl));
2735
2736         if (!priv->up) {
2737                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2738                 priv->bdisable_nic = false;
2739                 return false;
2740         }
2741
2742         RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2743         priv->bfirst_init = true;
2744         init_status = priv->ops->initialize_adapter(dev);
2745         if (!init_status) {
2746                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2747                 priv->bdisable_nic = false;
2748                 return false;
2749         }
2750         RT_TRACE(COMP_INIT, "start adapter finished\n");
2751         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2752         priv->bfirst_init = false;
2753
2754         rtl92e_irq_enable(dev);
2755         priv->bdisable_nic = false;
2756         RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2757         return init_status;
2758 }
2759 bool rtl92e_disable_nic(struct net_device *dev)
2760 {
2761         struct r8192_priv *priv = rtllib_priv(dev);
2762         u8 tmp_state = 0;
2763
2764         RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2765         priv->bdisable_nic = true;
2766         tmp_state = priv->rtllib->state;
2767         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2768         priv->rtllib->state = tmp_state;
2769         _rtl92e_cancel_deferred_work(priv);
2770         rtl92e_irq_disable(dev);
2771
2772         priv->ops->stop_adapter(dev, false);
2773         RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2774
2775         return true;
2776 }
2777
2778 module_pci_driver(rtl8192_pci_driver);
2779
2780 void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
2781 {
2782         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
2783
2784         priv->polling_timer_on = 1;
2785
2786         schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2787
2788         mod_timer(&priv->gpio_polling_timer, jiffies +
2789                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2790 }
2791
2792 /***************************************************************************
2793         ------------------- module init / exit stubs ----------------
2794 ****************************************************************************/
2795 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2796 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2797 MODULE_VERSION(DRV_VERSION);
2798 MODULE_LICENSE("GPL");
2799 /*(DEBLOBBED)*/
2800
2801 module_param(ifname, charp, S_IRUGO|S_IWUSR);
2802 module_param(hwwep, int, S_IRUGO|S_IWUSR);
2803 module_param(channels, int, S_IRUGO|S_IWUSR);
2804
2805 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2806 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2807 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");