drivers/staging/rtl8192e/rtl8192e/rtl_core.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * Based on the r8180 driver, which is:
   6  * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
   7  *
   8  * Contact Information: wlanfae <wlanfae@realtek.com>
   9  */
  10 #include <linux/uaccess.h>
  11 #include <linux/pci.h>
  12 #include <linux/vmalloc.h>
  13 #include <linux/ieee80211.h>
  14 #include "rtl_core.h"
  15 #include "r8192E_phy.h"
  16 #include "r8192E_phyreg.h"
  17 #include "r8190P_rtl8256.h"
  18 #include "r8192E_cmdpkt.h"
  19
  20 #include "rtl_wx.h"
  21 #include "rtl_dm.h"
  22
  23 #include "rtl_pm.h"
  24
  25 int hwwep = 1;
  26 static char *ifname = "wlan%d";
  27
  28
  29 static const struct rtl819x_ops rtl819xp_ops = {
  30         .nic_type                       = NIC_8192E,
  31         .get_eeprom_size                = rtl92e_get_eeprom_size,
  32         .init_adapter_variable          = rtl92e_init_variables,
  33         .initialize_adapter             = rtl92e_start_adapter,
  34         .link_change                    = rtl92e_link_change,
  35         .tx_fill_descriptor             = rtl92e_fill_tx_desc,
  36         .tx_fill_cmd_descriptor         = rtl92e_fill_tx_cmd_desc,
  37         .rx_query_status_descriptor     = rtl92e_get_rx_stats,
  38         .rx_command_packet_handler = NULL,
  39         .stop_adapter                   = rtl92e_stop_adapter,
  40         .update_ratr_table              = rtl92e_update_ratr_table,
  41         .irq_enable                     = rtl92e_enable_irq,
  42         .irq_disable                    = rtl92e_disable_irq,
  43         .irq_clear                      = rtl92e_clear_irq,
  44         .rx_enable                      = rtl92e_enable_rx,
  45         .tx_enable                      = rtl92e_enable_tx,
  46         .interrupt_recognized           = rtl92e_ack_irq,
  47         .TxCheckStuckHandler            = rtl92e_is_tx_stuck,
  48         .RxCheckStuckHandler            = rtl92e_is_rx_stuck,
  49 };
  50
  51 static struct pci_device_id rtl8192_pci_id_tbl[] = {
  52         {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
  53         {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
  54         {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
  55         {}
  56 };
  57
  58 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
  59
  60 static int _rtl92e_pci_probe(struct pci_dev *pdev,
  61                              const struct pci_device_id *id);
  62 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
  63 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
  64
  65 static SIMPLE_DEV_PM_OPS(rtl92e_pm_ops, rtl92e_suspend, rtl92e_resume);
  66
  67 static struct pci_driver rtl8192_pci_driver = {
  68         .name = DRV_NAME,       /* Driver name   */
  69         .id_table = rtl8192_pci_id_tbl, /* PCI_ID table  */
  70         .probe  = _rtl92e_pci_probe,    /* probe fn      */
  71         .remove  = _rtl92e_pci_disconnect,      /* remove fn */
  72         .driver.pm = &rtl92e_pm_ops,
  73 };
  74
  75 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
  76 static void _rtl92e_watchdog_wq_cb(void *data);
  77 static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
  78 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
  79                                    int rate);
  80 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
  81 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
  82 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
  83 static short _rtl92e_pci_initdescring(struct net_device *dev);
  84 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t);
  85 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t);
  86 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
  87 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
  88 static int _rtl92e_try_up(struct net_device *dev);
  89 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
  90 static void _rtl92e_restart(void *data);
  91
  92 /****************************************************************************
  93  *  -----------------------------IO STUFF-------------------------
  94  ****************************************************************************/
  95
  96 u8 rtl92e_readb(struct net_device *dev, int x)
  97 {
  98         return 0xff & readb((u8 __iomem *)dev->mem_start + x);
  99 }
 100
 101 u32 rtl92e_readl(struct net_device *dev, int x)
 102 {
 103         return readl((u8 __iomem *)dev->mem_start + x);
 104 }
 105
 106 u16 rtl92e_readw(struct net_device *dev, int x)
 107 {
 108         return readw((u8 __iomem *)dev->mem_start + x);
 109 }
 110
 111 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
 112 {
 113         writeb(y, (u8 __iomem *)dev->mem_start + x);
 114
 115         udelay(20);
 116 }
 117
 118 void rtl92e_writel(struct net_device *dev, int x, u32 y)
 119 {
 120         writel(y, (u8 __iomem *)dev->mem_start + x);
 121
 122         udelay(20);
 123 }
 124
 125 void rtl92e_writew(struct net_device *dev, int x, u16 y)
 126 {
 127         writew(y, (u8 __iomem *)dev->mem_start + x);
 128
 129         udelay(20);
 130 }
 131
 132 /****************************************************************************
 133  *  -----------------------------GENERAL FUNCTION-------------------------
 134  ****************************************************************************/
 135 bool rtl92e_set_rf_state(struct net_device *dev,
 136                          enum rt_rf_power_state StateToSet,
 137                          RT_RF_CHANGE_SOURCE ChangeSource)
 138 {
 139         struct r8192_priv *priv = rtllib_priv(dev);
 140         struct rtllib_device *ieee = priv->rtllib;
 141         bool                    bActionAllowed = false;
 142         bool                    bConnectBySSID = false;
 143         enum rt_rf_power_state rtState;
 144         u16                     RFWaitCounter = 0;
 145         unsigned long flag;
 146
 147         RT_TRACE((COMP_PS | COMP_RF),
 148                  "===>%s: StateToSet(%d)\n", __func__, StateToSet);
 149
 150         while (true) {
 151                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
 152                 if (priv->RFChangeInProgress) {
 153                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 154                         RT_TRACE((COMP_PS | COMP_RF),
 155                                  "%s: RF Change in progress! Wait to set..StateToSet(%d).\n",
 156                                  __func__, StateToSet);
 157
 158                         while (priv->RFChangeInProgress) {
 159                                 RFWaitCounter++;
 160                                 RT_TRACE((COMP_PS | COMP_RF),
 161                                          "%s: Wait 1 ms (%d times)...\n",
 162                                          __func__, RFWaitCounter);
 163                                 mdelay(1);
 164
 165                                 if (RFWaitCounter > 100) {
 166                                         netdev_warn(dev,
 167                                                     "%s(): Timeout waiting for RF change.\n",
 168                                                     __func__);
 169                                         return false;
 170                                 }
 171                         }
 172                 } else {
 173                         priv->RFChangeInProgress = true;
 174                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 175                         break;
 176                 }
 177         }
 178
 179         rtState = priv->rtllib->eRFPowerState;
 180
 181         switch (StateToSet) {
 182         case eRfOn:
 183                 priv->rtllib->RfOffReason &= (~ChangeSource);
 184
 185                 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
 186                         priv->bHwRadioOff = false;
 187
 188                 if (!priv->rtllib->RfOffReason) {
 189                         priv->rtllib->RfOffReason = 0;
 190                         bActionAllowed = true;
 191
 192
 193                         if (rtState == eRfOff &&
 194                             ChangeSource >= RF_CHANGE_BY_HW)
 195                                 bConnectBySSID = true;
 196                 } else {
 197                         RT_TRACE((COMP_PS | COMP_RF),
 198                                  "%s - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
 199                                  __func__, priv->rtllib->RfOffReason, ChangeSource);
 200         }
 201
 202                 break;
 203
 204         case eRfOff:
 205
 206                 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
 207                     (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
 208                         if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
 209                             (ChangeSource > RF_CHANGE_BY_IPS)) {
 210                                 if (ieee->state == RTLLIB_LINKED)
 211                                         priv->blinked_ingpio = true;
 212                                 else
 213                                         priv->blinked_ingpio = false;
 214                                 rtllib_MgntDisconnect(priv->rtllib,
 215                                                       WLAN_REASON_DISASSOC_STA_HAS_LEFT);
 216                         }
 217                 }
 218                 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
 219                         priv->bHwRadioOff = true;
 220                 priv->rtllib->RfOffReason |= ChangeSource;
 221                 bActionAllowed = true;
 222                 break;
 223
 224         case eRfSleep:
 225                 priv->rtllib->RfOffReason |= ChangeSource;
 226                 bActionAllowed = true;
 227                 break;
 228
 229         default:
 230                 break;
 231         }
 232
 233         if (bActionAllowed) {
 234                 RT_TRACE((COMP_PS | COMP_RF),
 235                          "%s: Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
 236                          __func__, StateToSet, priv->rtllib->RfOffReason);
 237                 PHY_SetRFPowerState(dev, StateToSet);
 238                 if (StateToSet == eRfOn) {
 239
 240                         if (bConnectBySSID && priv->blinked_ingpio) {
 241                                 schedule_delayed_work(
 242                                          &ieee->associate_procedure_wq, 0);
 243                                 priv->blinked_ingpio = false;
 244                         }
 245                 }
 246         } else {
 247                 RT_TRACE((COMP_PS | COMP_RF),
 248                          "%s: Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
 249                          __func__, StateToSet, ChangeSource, priv->rtllib->RfOffReason);
 250         }
 251
 252         spin_lock_irqsave(&priv->rf_ps_lock, flag);
 253         priv->RFChangeInProgress = false;
 254         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 255
 256         RT_TRACE((COMP_PS | COMP_RF), "<===%s\n", __func__);
 257         return bActionAllowed;
 258 }
 259
 260 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
 261 {
 262         struct r8192_priv *priv = rtllib_priv(dev);
 263         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
 264
 265         if (ring->entries - skb_queue_len(&ring->queue) >= 2)
 266                 return 1;
 267         return 0;
 268 }
 269
 270 static void _rtl92e_tx_timeout(struct net_device *dev, unsigned int txqueue)
 271 {
 272         struct r8192_priv *priv = rtllib_priv(dev);
 273
 274         schedule_work(&priv->reset_wq);
 275         netdev_info(dev, "TXTIMEOUT");
 276 }
 277
 278 void rtl92e_irq_enable(struct net_device *dev)
 279 {
 280         struct r8192_priv *priv = rtllib_priv(dev);
 281
 282         priv->irq_enabled = 1;
 283
 284         priv->ops->irq_enable(dev);
 285 }
 286
 287 void rtl92e_irq_disable(struct net_device *dev)
 288 {
 289         struct r8192_priv *priv = rtllib_priv(dev);
 290
 291         priv->ops->irq_disable(dev);
 292
 293         priv->irq_enabled = 0;
 294 }
 295
 296 static void _rtl92e_set_chan(struct net_device *dev, short ch)
 297 {
 298         struct r8192_priv *priv = rtllib_priv(dev);
 299
 300         RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
 301         if (priv->chan_forced)
 302                 return;
 303
 304         priv->chan = ch;
 305
 306         if (priv->rf_set_chan)
 307                 priv->rf_set_chan(dev, priv->chan);
 308 }
 309
 310 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
 311 {
 312         struct r8192_priv *priv = rtllib_priv(dev);
 313         struct rtllib_network *net = &priv->rtllib->current_network;
 314         bool            ShortPreamble;
 315
 316         if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 317                 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
 318                         ShortPreamble = true;
 319                         priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
 320                         RT_TRACE(COMP_DBG,
 321                                  "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
 322                                  __func__);
 323                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 324                                         (unsigned char *)&ShortPreamble);
 325                 }
 326         } else {
 327                 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
 328                         ShortPreamble = false;
 329                         priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
 330                         RT_TRACE(COMP_DBG,
 331                                  "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
 332                                  __func__);
 333                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 334                                               (unsigned char *)&ShortPreamble);
 335                 }
 336         }
 337
 338         if (net->mode & (IEEE_G | IEEE_N_24G)) {
 339                 u8      slot_time_val;
 340                 u8      CurSlotTime = priv->slot_time;
 341
 342                 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
 343                    (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
 344                         if (CurSlotTime != SHORT_SLOT_TIME) {
 345                                 slot_time_val = SHORT_SLOT_TIME;
 346                                 priv->rtllib->SetHwRegHandler(dev,
 347                                          HW_VAR_SLOT_TIME, &slot_time_val);
 348                         }
 349                 } else {
 350                         if (CurSlotTime != NON_SHORT_SLOT_TIME) {
 351                                 slot_time_val = NON_SHORT_SLOT_TIME;
 352                                 priv->rtllib->SetHwRegHandler(dev,
 353                                          HW_VAR_SLOT_TIME, &slot_time_val);
 354                         }
 355                 }
 356         }
 357 }
 358
 359 static const struct rtllib_qos_parameters def_qos_parameters = {
 360         {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
 361         {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
 362         {2, 2, 2, 2},
 363         {0, 0, 0, 0},
 364         {0, 0, 0, 0}
 365 };
 366
 367 static void _rtl92e_update_beacon(void *data)
 368 {
 369         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 370                                   update_beacon_wq.work);
 371         struct net_device *dev = priv->rtllib->dev;
 372         struct rtllib_device *ieee = priv->rtllib;
 373         struct rtllib_network *net = &ieee->current_network;
 374
 375         if (ieee->pHTInfo->bCurrentHTSupport)
 376                 HT_update_self_and_peer_setting(ieee, net);
 377         ieee->pHTInfo->bCurrentRT2RTLongSlotTime = net->bssht.bd_rt2rt_long_slot_time;
 378         ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.rt2rt_ht_mode;
 379         _rtl92e_update_cap(dev, net->capability);
 380 }
 381
 382 static void _rtl92e_qos_activate(void *data)
 383 {
 384         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 385                                   qos_activate);
 386         struct net_device *dev = priv->rtllib->dev;
 387         int i;
 388
 389         mutex_lock(&priv->mutex);
 390         if (priv->rtllib->state != RTLLIB_LINKED)
 391                 goto success;
 392         RT_TRACE(COMP_QOS,
 393                  "qos active process with associate response received\n");
 394
 395         for (i = 0; i <  QOS_QUEUE_NUM; i++)
 396                 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
 397
 398
 399 success:
 400         mutex_unlock(&priv->mutex);
 401 }
 402
 403 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
 404                                              int active_network,
 405                                              struct rtllib_network *network)
 406 {
 407         int ret = 0;
 408         u32 size = sizeof(struct rtllib_qos_parameters);
 409
 410         if (priv->rtllib->state != RTLLIB_LINKED)
 411                 return ret;
 412
 413         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 414                 return ret;
 415
 416         if (network->flags & NETWORK_HAS_QOS_MASK) {
 417                 if (active_network &&
 418                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
 419                         network->qos_data.active = network->qos_data.supported;
 420
 421                 if ((network->qos_data.active == 1) && (active_network == 1) &&
 422                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
 423                                 (network->qos_data.old_param_count !=
 424                                 network->qos_data.param_count)) {
 425                         network->qos_data.old_param_count =
 426                                 network->qos_data.param_count;
 427                         priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 428                         schedule_work(&priv->qos_activate);
 429                         RT_TRACE(COMP_QOS,
 430                                  "QoS parameters change call qos_activate\n");
 431                 }
 432         } else {
 433                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 434                        &def_qos_parameters, size);
 435
 436                 if ((network->qos_data.active == 1) && (active_network == 1)) {
 437                         schedule_work(&priv->qos_activate);
 438                         RT_TRACE(COMP_QOS,
 439                                  "QoS was disabled call qos_activate\n");
 440                 }
 441                 network->qos_data.active = 0;
 442                 network->qos_data.supported = 0;
 443         }
 444
 445         return 0;
 446 }
 447
 448 static int _rtl92e_handle_beacon(struct net_device *dev,
 449                                  struct rtllib_beacon *beacon,
 450                                  struct rtllib_network *network)
 451 {
 452         struct r8192_priv *priv = rtllib_priv(dev);
 453
 454         _rtl92e_qos_handle_probe_response(priv, 1, network);
 455
 456         schedule_delayed_work(&priv->update_beacon_wq, 0);
 457         return 0;
 458
 459 }
 460
 461 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
 462                                   struct rtllib_network *network)
 463 {
 464         unsigned long flags;
 465         u32 size = sizeof(struct rtllib_qos_parameters);
 466         int set_qos_param = 0;
 467
 468         if (!priv || !network)
 469                 return 0;
 470
 471         if (priv->rtllib->state != RTLLIB_LINKED)
 472                 return 0;
 473
 474         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 475                 return 0;
 476
 477         spin_lock_irqsave(&priv->rtllib->lock, flags);
 478         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
 479                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 480                        &network->qos_data.parameters,
 481                        sizeof(struct rtllib_qos_parameters));
 482                 priv->rtllib->current_network.qos_data.active = 1;
 483                 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 484                 set_qos_param = 1;
 485                 priv->rtllib->current_network.qos_data.old_param_count =
 486                         priv->rtllib->current_network.qos_data.param_count;
 487                 priv->rtllib->current_network.qos_data.param_count =
 488                         network->qos_data.param_count;
 489         } else {
 490                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 491                 &def_qos_parameters, size);
 492                 priv->rtllib->current_network.qos_data.active = 0;
 493                 priv->rtllib->current_network.qos_data.supported = 0;
 494                 set_qos_param = 1;
 495         }
 496
 497         spin_unlock_irqrestore(&priv->rtllib->lock, flags);
 498
 499         RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
 500                  network->flags, priv->rtllib->current_network.qos_data.active);
 501         if (set_qos_param == 1) {
 502                 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
 503                 schedule_work(&priv->qos_activate);
 504         }
 505         return 0;
 506 }
 507
 508 static int _rtl92e_handle_assoc_response(struct net_device *dev,
 509                                  struct rtllib_assoc_response_frame *resp,
 510                                  struct rtllib_network *network)
 511 {
 512         struct r8192_priv *priv = rtllib_priv(dev);
 513
 514         _rtl92e_qos_assoc_resp(priv, network);
 515         return 0;
 516 }
 517
 518 static void _rtl92e_prepare_beacon(struct tasklet_struct *t)
 519 {
 520         struct r8192_priv *priv = from_tasklet(priv, t,
 521                                                irq_prepare_beacon_tasklet);
 522         struct net_device *dev = priv->rtllib->dev;
 523         struct sk_buff *pskb = NULL, *pnewskb = NULL;
 524         struct cb_desc *tcb_desc = NULL;
 525         struct rtl8192_tx_ring *ring = NULL;
 526         struct tx_desc *pdesc = NULL;
 527
 528         ring = &priv->tx_ring[BEACON_QUEUE];
 529         pskb = __skb_dequeue(&ring->queue);
 530         kfree_skb(pskb);
 531
 532         pnewskb = rtllib_get_beacon(priv->rtllib);
 533         if (!pnewskb)
 534                 return;
 535
 536         tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
 537         tcb_desc->queue_index = BEACON_QUEUE;
 538         tcb_desc->data_rate = 2;
 539         tcb_desc->RATRIndex = 7;
 540         tcb_desc->bTxDisableRateFallBack = 1;
 541         tcb_desc->bTxUseDriverAssingedRate = 1;
 542         skb_push(pnewskb, priv->rtllib->tx_headroom);
 543
 544         pdesc = &ring->desc[0];
 545         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
 546         __skb_queue_tail(&ring->queue, pnewskb);
 547         pdesc->OWN = 1;
 548 }
 549
 550 static void _rtl92e_stop_beacon(struct net_device *dev)
 551 {
 552 }
 553
 554 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
 555 {
 556         struct r8192_priv *priv = rtllib_priv(dev);
 557         struct rtllib_network *net;
 558         u8 i = 0, basic_rate = 0;
 559
 560         net = &priv->rtllib->current_network;
 561
 562         for (i = 0; i < net->rates_len; i++) {
 563                 basic_rate = net->rates[i] & 0x7f;
 564                 switch (basic_rate) {
 565                 case MGN_1M:
 566                         *rate_config |= RRSR_1M;
 567                         break;
 568                 case MGN_2M:
 569                         *rate_config |= RRSR_2M;
 570                         break;
 571                 case MGN_5_5M:
 572                         *rate_config |= RRSR_5_5M;
 573                         break;
 574                 case MGN_11M:
 575                         *rate_config |= RRSR_11M;
 576                         break;
 577                 case MGN_6M:
 578                         *rate_config |= RRSR_6M;
 579                         break;
 580                 case MGN_9M:
 581                         *rate_config |= RRSR_9M;
 582                         break;
 583                 case MGN_12M:
 584                         *rate_config |= RRSR_12M;
 585                         break;
 586                 case MGN_18M:
 587                         *rate_config |= RRSR_18M;
 588                         break;
 589                 case MGN_24M:
 590                         *rate_config |= RRSR_24M;
 591                         break;
 592                 case MGN_36M:
 593                         *rate_config |= RRSR_36M;
 594                         break;
 595                 case MGN_48M:
 596                         *rate_config |= RRSR_48M;
 597                         break;
 598                 case MGN_54M:
 599                         *rate_config |= RRSR_54M;
 600                         break;
 601                 }
 602         }
 603
 604         for (i = 0; i < net->rates_ex_len; i++) {
 605                 basic_rate = net->rates_ex[i] & 0x7f;
 606                 switch (basic_rate) {
 607                 case MGN_1M:
 608                         *rate_config |= RRSR_1M;
 609                         break;
 610                 case MGN_2M:
 611                         *rate_config |= RRSR_2M;
 612                         break;
 613                 case MGN_5_5M:
 614                         *rate_config |= RRSR_5_5M;
 615                         break;
 616                 case MGN_11M:
 617                         *rate_config |= RRSR_11M;
 618                         break;
 619                 case MGN_6M:
 620                         *rate_config |= RRSR_6M;
 621                         break;
 622                 case MGN_9M:
 623                         *rate_config |= RRSR_9M;
 624                         break;
 625                 case MGN_12M:
 626                         *rate_config |= RRSR_12M;
 627                         break;
 628                 case MGN_18M:
 629                         *rate_config |= RRSR_18M;
 630                         break;
 631                 case MGN_24M:
 632                         *rate_config |= RRSR_24M;
 633                         break;
 634                 case MGN_36M:
 635                         *rate_config |= RRSR_36M;
 636                         break;
 637                 case MGN_48M:
 638                         *rate_config |= RRSR_48M;
 639                         break;
 640                 case MGN_54M:
 641                         *rate_config |= RRSR_54M;
 642                         break;
 643                 }
 644         }
 645 }
 646
 647 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
 648 {
 649         struct rtllib_device *ieee = priv->rtllib;
 650
 651         if (ieee->mode == WIRELESS_MODE_N_24G ||
 652             ieee->mode == WIRELESS_MODE_N_5G) {
 653                 memcpy(ieee->Regdot11HTOperationalRateSet,
 654                        ieee->RegHTSuppRateSet, 16);
 655                 memcpy(ieee->Regdot11TxHTOperationalRateSet,
 656                        ieee->RegHTSuppRateSet, 16);
 657
 658         } else {
 659                 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
 660         }
 661 }
 662
 663 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
 664 {
 665         struct r8192_priv *priv = rtllib_priv(dev);
 666         u8 ret = 0;
 667
 668         switch (priv->rf_chip) {
 669         case RF_8225:
 670         case RF_8256:
 671         case RF_6052:
 672         case RF_PSEUDO_11N:
 673                 ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
 674                 break;
 675         case RF_8258:
 676                 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
 677                 break;
 678         default:
 679                 ret = WIRELESS_MODE_B;
 680                 break;
 681         }
 682         return ret;
 683 }
 684
 685 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
 686 {
 687         struct r8192_priv *priv = rtllib_priv(dev);
 688         u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
 689
 690         if ((wireless_mode == WIRELESS_MODE_AUTO) ||
 691             ((wireless_mode & bSupportMode) == 0)) {
 692                 if (bSupportMode & WIRELESS_MODE_N_24G) {
 693                         wireless_mode = WIRELESS_MODE_N_24G;
 694                 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
 695                         wireless_mode = WIRELESS_MODE_N_5G;
 696                 } else if ((bSupportMode & WIRELESS_MODE_A)) {
 697                         wireless_mode = WIRELESS_MODE_A;
 698                 } else if ((bSupportMode & WIRELESS_MODE_G)) {
 699                         wireless_mode = WIRELESS_MODE_G;
 700                 } else if ((bSupportMode & WIRELESS_MODE_B)) {
 701                         wireless_mode = WIRELESS_MODE_B;
 702                 } else {
 703                         netdev_info(dev,
 704                                     "%s(): Unsupported mode requested. Fallback to 802.11b\n",
 705                                     __func__);
 706                         wireless_mode = WIRELESS_MODE_B;
 707                 }
 708         }
 709
 710         if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
 711             (WIRELESS_MODE_G | WIRELESS_MODE_B))
 712                 wireless_mode = WIRELESS_MODE_G;
 713
 714         priv->rtllib->mode = wireless_mode;
 715
 716         if ((wireless_mode == WIRELESS_MODE_N_24G) ||
 717             (wireless_mode == WIRELESS_MODE_N_5G)) {
 718                 priv->rtllib->pHTInfo->bEnableHT = 1;
 719                 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
 720                          __func__, wireless_mode);
 721         } else {
 722                 priv->rtllib->pHTInfo->bEnableHT = 0;
 723                 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
 724                          __func__, wireless_mode);
 725         }
 726
 727         RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
 728         _rtl92e_refresh_support_rate(priv);
 729 }
 730
 731 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
 732 {
 733         struct r8192_priv *priv = rtllib_priv(dev);
 734         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 735                                         (&priv->rtllib->PowerSaveControl);
 736         bool init_status;
 737
 738         priv->bDriverIsGoingToUnload = false;
 739         priv->bdisable_nic = false;
 740
 741         priv->up = 1;
 742         priv->rtllib->ieee_up = 1;
 743
 744         priv->up_first_time = 0;
 745         RT_TRACE(COMP_INIT, "Bringing up iface");
 746         priv->bfirst_init = true;
 747         init_status = priv->ops->initialize_adapter(dev);
 748         if (!init_status) {
 749                 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
 750                 priv->bfirst_init = false;
 751                 return -1;
 752         }
 753
 754         RT_TRACE(COMP_INIT, "start adapter finished\n");
 755         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
 756         priv->bfirst_init = false;
 757
 758         if (priv->polling_timer_on == 0)
 759                 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
 760
 761         if (priv->rtllib->state != RTLLIB_LINKED)
 762                 rtllib_softmac_start_protocol(priv->rtllib, 0);
 763         rtllib_reset_queue(priv->rtllib);
 764         _rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
 765
 766         if (!netif_queue_stopped(dev))
 767                 netif_start_queue(dev);
 768         else
 769                 netif_wake_queue(dev);
 770
 771         return 0;
 772 }
 773
 774 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
 775 {
 776         struct r8192_priv *priv = rtllib_priv(dev);
 777         unsigned long flags = 0;
 778         u8 RFInProgressTimeOut = 0;
 779
 780         if (priv->up == 0)
 781                 return -1;
 782
 783         if (priv->rtllib->rtllib_ips_leave)
 784                 priv->rtllib->rtllib_ips_leave(dev);
 785
 786         if (priv->rtllib->state == RTLLIB_LINKED)
 787                 rtl92e_leisure_ps_leave(dev);
 788
 789         priv->bDriverIsGoingToUnload = true;
 790         priv->up = 0;
 791         priv->rtllib->ieee_up = 0;
 792         priv->bfirst_after_down = true;
 793         RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
 794         if (!netif_queue_stopped(dev))
 795                 netif_stop_queue(dev);
 796
 797         priv->rtllib->wpa_ie_len = 0;
 798         kfree(priv->rtllib->wpa_ie);
 799         priv->rtllib->wpa_ie = NULL;
 800         rtl92e_cam_reset(dev);
 801         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 802         rtl92e_irq_disable(dev);
 803
 804         del_timer_sync(&priv->watch_dog_timer);
 805         _rtl92e_cancel_deferred_work(priv);
 806         cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
 807
 808         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
 809         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 810         while (priv->RFChangeInProgress) {
 811                 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 812                 if (RFInProgressTimeOut > 100) {
 813                         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 814                         break;
 815                 }
 816                 RT_TRACE(COMP_DBG,
 817                          "===>%s():RF is in progress, need to wait until rf change is done.\n",
 818                          __func__);
 819                 mdelay(1);
 820                 RFInProgressTimeOut++;
 821                 spin_lock_irqsave(&priv->rf_ps_lock, flags);
 822         }
 823         priv->RFChangeInProgress = true;
 824         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 825         priv->ops->stop_adapter(dev, false);
 826         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 827         priv->RFChangeInProgress = false;
 828         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 829         udelay(100);
 830         memset(&priv->rtllib->current_network, 0,
 831                offsetof(struct rtllib_network, list));
 832         RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
 833
 834         return 0;
 835 }
 836
 837 static void _rtl92e_init_priv_handler(struct net_device *dev)
 838 {
 839         struct r8192_priv *priv = rtllib_priv(dev);
 840
 841         priv->rtllib->softmac_hard_start_xmit   = _rtl92e_hard_start_xmit;
 842         priv->rtllib->set_chan                  = _rtl92e_set_chan;
 843         priv->rtllib->link_change               = priv->ops->link_change;
 844         priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
 845         priv->rtllib->check_nic_enough_desc     = _rtl92e_check_nic_enough_desc;
 846         priv->rtllib->handle_assoc_response     = _rtl92e_handle_assoc_response;
 847         priv->rtllib->handle_beacon             = _rtl92e_handle_beacon;
 848         priv->rtllib->SetWirelessMode           = rtl92e_set_wireless_mode;
 849         priv->rtllib->LeisurePSLeave            = rtl92e_leisure_ps_leave;
 850         priv->rtllib->SetBWModeHandler          = rtl92e_set_bw_mode;
 851         priv->rf_set_chan                       = rtl92e_set_channel;
 852
 853         priv->rtllib->start_send_beacons = rtl92e_start_beacon;
 854         priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
 855
 856         priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
 857         priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
 858         priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
 859
 860         priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
 861         priv->rtllib->GetHalfNmodeSupportByAPsHandler =
 862                                                 rtl92e_is_halfn_supported_by_ap;
 863
 864         priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
 865         priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
 866         priv->rtllib->SetFwCmdHandler = NULL;
 867         priv->rtllib->InitialGainHandler = rtl92e_init_gain;
 868         priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
 869         priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
 870
 871         priv->rtllib->LedControlHandler = NULL;
 872         priv->rtllib->UpdateBeaconInterruptHandler = NULL;
 873
 874         priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
 875 }
 876
 877 static void _rtl92e_init_priv_constant(struct net_device *dev)
 878 {
 879         struct r8192_priv *priv = rtllib_priv(dev);
 880         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 881                                         &priv->rtllib->PowerSaveControl;
 882
 883         pPSC->RegMaxLPSAwakeIntvl = 5;
 884 }
 885
 886
 887 static void _rtl92e_init_priv_variable(struct net_device *dev)
 888 {
 889         struct r8192_priv *priv = rtllib_priv(dev);
 890         u8 i;
 891
 892         priv->AcmMethod = eAcmWay2_SW;
 893         priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 894         priv->rtllib->status = 0;
 895         priv->polling_timer_on = 0;
 896         priv->up_first_time = 1;
 897         priv->blinked_ingpio = false;
 898         priv->bDriverIsGoingToUnload = false;
 899         priv->being_init_adapter = false;
 900         priv->initialized_at_probe = false;
 901         priv->bdisable_nic = false;
 902         priv->bfirst_init = false;
 903         priv->txringcount = 64;
 904         priv->rxbuffersize = 9100;
 905         priv->rxringcount = MAX_RX_COUNT;
 906         priv->irq_enabled = 0;
 907         priv->chan = 1;
 908         priv->RegChannelPlan = 0xf;
 909         priv->rtllib->mode = WIRELESS_MODE_AUTO;
 910         priv->rtllib->iw_mode = IW_MODE_INFRA;
 911         priv->rtllib->bNetPromiscuousMode = false;
 912         priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
 913         priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
 914                                                                  false;
 915         priv->rtllib->ieee_up = 0;
 916         priv->retry_rts = DEFAULT_RETRY_RTS;
 917         priv->retry_data = DEFAULT_RETRY_DATA;
 918         priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
 919         priv->rtllib->rate = 110;
 920         priv->rtllib->short_slot = 1;
 921         priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
 922         priv->bcck_in_ch14 = false;
 923         priv->bfsync_processing  = false;
 924         priv->CCKPresentAttentuation = 0;
 925         priv->rfa_txpowertrackingindex = 0;
 926         priv->rfc_txpowertrackingindex = 0;
 927         priv->CckPwEnl = 6;
 928         priv->ScanDelay = 50;
 929         priv->ResetProgress = RESET_TYPE_NORESET;
 930         priv->bForcedSilentReset = false;
 931         priv->bDisableNormalResetCheck = false;
 932         priv->force_reset = false;
 933         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 934
 935         memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
 936         priv->RxCounter = 0;
 937         priv->rtllib->wx_set_enc = 0;
 938         priv->bHwRadioOff = false;
 939         priv->RegRfOff = false;
 940         priv->isRFOff = false;
 941         priv->bInPowerSaveMode = false;
 942         priv->rtllib->RfOffReason = 0;
 943         priv->RFChangeInProgress = false;
 944         priv->bHwRfOffAction = 0;
 945         priv->SetRFPowerStateInProgress = false;
 946         priv->rtllib->PowerSaveControl.bInactivePs = true;
 947         priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
 948         priv->rtllib->PowerSaveControl.bLeisurePs = true;
 949         priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
 950         priv->rtllib->LPSDelayCnt = 0;
 951         priv->rtllib->sta_sleep = LPS_IS_WAKE;
 952         priv->rtllib->eRFPowerState = eRfOn;
 953
 954         priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
 955         priv->rtllib->iw_mode = IW_MODE_INFRA;
 956         priv->rtllib->active_scan = 1;
 957         priv->rtllib->be_scan_inprogress = false;
 958         priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
 959                                    RTLLIB_OFDM_MODULATION;
 960         priv->rtllib->host_encrypt = 1;
 961         priv->rtllib->host_decrypt = 1;
 962
 963         priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
 964
 965         priv->card_type = PCI;
 966
 967         priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
 968         if (!priv->pFirmware)
 969                 netdev_err(dev,
 970                            "rtl8192e: Unable to allocate space for firmware\n");
 971
 972         skb_queue_head_init(&priv->skb_queue);
 973
 974         for (i = 0; i < MAX_QUEUE_SIZE; i++)
 975                 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
 976         for (i = 0; i < MAX_QUEUE_SIZE; i++)
 977                 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
 978 }
 979
 980 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
 981 {
 982         spin_lock_init(&priv->tx_lock);
 983         spin_lock_init(&priv->irq_th_lock);
 984         spin_lock_init(&priv->rf_ps_lock);
 985         spin_lock_init(&priv->ps_lock);
 986         mutex_init(&priv->wx_mutex);
 987         mutex_init(&priv->rf_mutex);
 988         mutex_init(&priv->mutex);
 989 }
 990
 991 static void _rtl92e_init_priv_task(struct net_device *dev)
 992 {
 993         struct r8192_priv *priv = rtllib_priv(dev);
 994
 995         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
 996         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
 997                       dev);
 998         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
 999                               (void *)_rtl92e_watchdog_wq_cb, dev);
1000         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1001                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
1002         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1003                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1004         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1005                               (void *)_rtl92e_update_beacon, dev);
1006         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1007         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1008                               (void *)rtl92e_hw_wakeup_wq, dev);
1009         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1010                               (void *)rtl92e_hw_sleep_wq, dev);
1011         tasklet_setup(&priv->irq_rx_tasklet, _rtl92e_irq_rx_tasklet);
1012         tasklet_setup(&priv->irq_tx_tasklet, _rtl92e_irq_tx_tasklet);
1013         tasklet_setup(&priv->irq_prepare_beacon_tasklet,
1014                       _rtl92e_prepare_beacon);
1015 }
1016
1017 static short _rtl92e_get_channel_map(struct net_device *dev)
1018 {
1019         int i;
1020
1021         struct r8192_priv *priv = rtllib_priv(dev);
1022
1023         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
1024                                                 (priv->rf_chip != RF_6052)) {
1025                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1026                            __func__);
1027                 return -1;
1028         }
1029
1030         if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1031                 netdev_info(dev,
1032                             "rtl819x_init:Error channel plan! Set to default.\n");
1033                 priv->ChannelPlan = COUNTRY_CODE_FCC;
1034         }
1035         RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1036         dot11d_init(priv->rtllib);
1037         dot11d_channel_map(priv->ChannelPlan, priv->rtllib);
1038         for (i = 1; i <= 11; i++)
1039                 (priv->rtllib->active_channel_map)[i] = 1;
1040         (priv->rtllib->active_channel_map)[12] = 2;
1041         (priv->rtllib->active_channel_map)[13] = 2;
1042
1043         return 0;
1044 }
1045
1046 static short _rtl92e_init(struct net_device *dev)
1047 {
1048         struct r8192_priv *priv = rtllib_priv(dev);
1049
1050         memset(&priv->stats, 0, sizeof(struct rt_stats));
1051
1052         _rtl92e_init_priv_handler(dev);
1053         _rtl92e_init_priv_constant(dev);
1054         _rtl92e_init_priv_variable(dev);
1055         _rtl92e_init_priv_lock(priv);
1056         _rtl92e_init_priv_task(dev);
1057         priv->ops->get_eeprom_size(dev);
1058         priv->ops->init_adapter_variable(dev);
1059         _rtl92e_get_channel_map(dev);
1060
1061         rtl92e_dm_init(dev);
1062
1063         timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
1064
1065         timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
1066                     0);
1067
1068         rtl92e_irq_disable(dev);
1069         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1070                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1071                 return -1;
1072         }
1073
1074         priv->irq = dev->irq;
1075         RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1076
1077         if (_rtl92e_pci_initdescring(dev) != 0) {
1078                 netdev_err(dev, "Endopoints initialization failed");
1079                 free_irq(dev->irq, dev);
1080                 return -1;
1081         }
1082
1083         return 0;
1084 }
1085
1086 /***************************************************************************
1087  * -------------------------------WATCHDOG STUFF---------------------------
1088  **************************************************************************/
1089 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1090 {
1091         int i = 0;
1092         struct r8192_priv *priv = rtllib_priv(dev);
1093
1094         for (i = 0; i <= MGNT_QUEUE; i++) {
1095                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1096                         continue;
1097                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1098                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1099                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1100                         return 0;
1101                 }
1102         }
1103         return 1;
1104 }
1105
1106 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1107 {
1108         struct r8192_priv *priv = rtllib_priv(dev);
1109         u8      QueueID;
1110         bool    bCheckFwTxCnt = false;
1111         struct rtl8192_tx_ring  *ring = NULL;
1112         struct sk_buff *skb = NULL;
1113         struct cb_desc *tcb_desc = NULL;
1114         unsigned long flags = 0;
1115
1116         switch (priv->rtllib->ps) {
1117         case RTLLIB_PS_DISABLED:
1118                 break;
1119         case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1120                 break;
1121         default:
1122                 break;
1123         }
1124         spin_lock_irqsave(&priv->irq_th_lock, flags);
1125         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1126                 if (QueueID == TXCMD_QUEUE)
1127                         continue;
1128
1129                 if (QueueID == BEACON_QUEUE)
1130                         continue;
1131
1132                 ring = &priv->tx_ring[QueueID];
1133
1134                 if (skb_queue_len(&ring->queue) == 0) {
1135                         continue;
1136                 } else {
1137                         skb = __skb_peek(&ring->queue);
1138                         tcb_desc = (struct cb_desc *)(skb->cb +
1139                                     MAX_DEV_ADDR_SIZE);
1140                         tcb_desc->nStuckCount++;
1141                         bCheckFwTxCnt = true;
1142                         if (tcb_desc->nStuckCount > 1)
1143                                 netdev_info(dev,
1144                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1145                                             __func__, QueueID,
1146                                             tcb_desc->nStuckCount);
1147                 }
1148         }
1149         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1150
1151         if (bCheckFwTxCnt) {
1152                 if (priv->ops->TxCheckStuckHandler(dev)) {
1153                         RT_TRACE(COMP_RESET,
1154                                  "TxCheckStuck(): Fw indicates no Tx condition!\n");
1155                         return RESET_TYPE_SILENT;
1156                 }
1157         }
1158
1159         return RESET_TYPE_NORESET;
1160 }
1161
1162 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1163 {
1164         struct r8192_priv *priv = rtllib_priv(dev);
1165
1166         if (priv->ops->RxCheckStuckHandler(dev)) {
1167                 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1168                 return RESET_TYPE_SILENT;
1169         }
1170
1171         return RESET_TYPE_NORESET;
1172 }
1173
1174 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1175 {
1176         struct r8192_priv *priv = rtllib_priv(dev);
1177         enum reset_type TxResetType = RESET_TYPE_NORESET;
1178         enum reset_type RxResetType = RESET_TYPE_NORESET;
1179         enum rt_rf_power_state rfState;
1180
1181         rfState = priv->rtllib->eRFPowerState;
1182
1183         if (rfState == eRfOn)
1184                 TxResetType = _rtl92e_tx_check_stuck(dev);
1185
1186         if (rfState == eRfOn &&
1187             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1188             (priv->rtllib->state == RTLLIB_LINKED))
1189                 RxResetType = _rtl92e_rx_check_stuck(dev);
1190
1191         if (TxResetType == RESET_TYPE_NORMAL ||
1192             RxResetType == RESET_TYPE_NORMAL) {
1193                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1194                             __func__, TxResetType, RxResetType);
1195                 return RESET_TYPE_NORMAL;
1196         } else if (TxResetType == RESET_TYPE_SILENT ||
1197                    RxResetType == RESET_TYPE_SILENT) {
1198                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1199                             __func__, TxResetType, RxResetType);
1200                 return RESET_TYPE_SILENT;
1201         } else {
1202                 return RESET_TYPE_NORESET;
1203         }
1204
1205 }
1206
1207 static void _rtl92e_if_silent_reset(struct net_device *dev)
1208 {
1209         struct r8192_priv *priv = rtllib_priv(dev);
1210         u8      reset_times = 0;
1211         int reset_status = 0;
1212         struct rtllib_device *ieee = priv->rtllib;
1213         unsigned long flag;
1214
1215         if (priv->ResetProgress == RESET_TYPE_NORESET) {
1216
1217                 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1218
1219                 priv->ResetProgress = RESET_TYPE_SILENT;
1220
1221                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1222                 if (priv->RFChangeInProgress) {
1223                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1224                         goto END;
1225                 }
1226                 priv->RFChangeInProgress = true;
1227                 priv->bResetInProgress = true;
1228                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1229
1230 RESET_START:
1231
1232                 mutex_lock(&priv->wx_mutex);
1233
1234                 if (priv->rtllib->state == RTLLIB_LINKED)
1235                         rtl92e_leisure_ps_leave(dev);
1236
1237                 if (priv->up) {
1238                         netdev_info(dev, "%s():the driver is not up.\n",
1239                                     __func__);
1240                         mutex_unlock(&priv->wx_mutex);
1241                         return;
1242                 }
1243                 priv->up = 0;
1244
1245                 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1246                           __func__);
1247                 mdelay(1000);
1248                 RT_TRACE(COMP_RESET,
1249                          "%s():111111111111111111111111======>start to down the driver\n",
1250                          __func__);
1251
1252                 if (!netif_queue_stopped(dev))
1253                         netif_stop_queue(dev);
1254
1255                 rtl92e_irq_disable(dev);
1256                 del_timer_sync(&priv->watch_dog_timer);
1257                 _rtl92e_cancel_deferred_work(priv);
1258                 rtl92e_dm_deinit(dev);
1259                 rtllib_stop_scan_syncro(ieee);
1260
1261                 if (ieee->state == RTLLIB_LINKED) {
1262                         mutex_lock(&ieee->wx_mutex);
1263                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1264                         rtllib_stop_send_beacons(priv->rtllib);
1265                         del_timer_sync(&ieee->associate_timer);
1266                         cancel_delayed_work(&ieee->associate_retry_wq);
1267                         rtllib_stop_scan(ieee);
1268                         netif_carrier_off(dev);
1269                         mutex_unlock(&ieee->wx_mutex);
1270                 } else {
1271                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1272                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1273                 }
1274
1275                 rtl92e_dm_backup_state(dev);
1276
1277                 mutex_unlock(&priv->wx_mutex);
1278                 RT_TRACE(COMP_RESET,
1279                          "%s():<==========down process is finished\n",
1280                          __func__);
1281
1282                 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1283                          __func__);
1284                 reset_status = _rtl92e_up(dev, true);
1285
1286                 RT_TRACE(COMP_RESET,
1287                          "%s():<===========up process is finished\n", __func__);
1288                 if (reset_status == -1) {
1289                         if (reset_times < 3) {
1290                                 reset_times++;
1291                                 goto RESET_START;
1292                         } else {
1293                                 netdev_warn(dev, "%s(): Reset Failed\n",
1294                                             __func__);
1295                         }
1296                 }
1297
1298                 ieee->is_silent_reset = 1;
1299
1300                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1301                 priv->RFChangeInProgress = false;
1302                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1303
1304                 rtl92e_enable_hw_security_config(dev);
1305
1306                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1307                     IW_MODE_INFRA) {
1308                         ieee->set_chan(ieee->dev,
1309                                        ieee->current_network.channel);
1310
1311                         schedule_work(&ieee->associate_complete_wq);
1312
1313                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1314                            IW_MODE_ADHOC) {
1315                         ieee->set_chan(ieee->dev,
1316                                        ieee->current_network.channel);
1317                         ieee->link_change(ieee->dev);
1318
1319                         notify_wx_assoc_event(ieee);
1320
1321                         rtllib_start_send_beacons(ieee);
1322
1323                         netif_carrier_on(ieee->dev);
1324                 }
1325
1326                 rtl92e_cam_restore(dev);
1327                 rtl92e_dm_restore_state(dev);
1328 END:
1329                 priv->ResetProgress = RESET_TYPE_NORESET;
1330                 priv->reset_count++;
1331
1332                 priv->bForcedSilentReset = false;
1333                 priv->bResetInProgress = false;
1334
1335                 rtl92e_writeb(dev, UFWP, 1);
1336                 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1337                          priv->reset_count);
1338         }
1339 }
1340
1341 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1342                                     u32 *TotalRxDataNum)
1343 {
1344         u16     SlotIndex;
1345         u8      i;
1346
1347         *TotalRxBcnNum = 0;
1348         *TotalRxDataNum = 0;
1349
1350         SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1351                         (priv->rtllib->LinkDetectInfo.SlotNum);
1352         priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1353                         priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1354         priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1355                         priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1356         for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1357                 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1358                 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1359         }
1360 }
1361
1362 static void _rtl92e_watchdog_wq_cb(void *data)
1363 {
1364         struct r8192_priv *priv = container_of_dwork_rsl(data,
1365                                   struct r8192_priv, watch_dog_wq);
1366         struct net_device *dev = priv->rtllib->dev;
1367         struct rtllib_device *ieee = priv->rtllib;
1368         enum reset_type ResetType = RESET_TYPE_NORESET;
1369         static u8 check_reset_cnt;
1370         unsigned long flags;
1371         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1372                                         (&priv->rtllib->PowerSaveControl);
1373         bool bBusyTraffic = false;
1374         bool    bHigherBusyTraffic = false;
1375         bool    bHigherBusyRxTraffic = false;
1376         bool bEnterPS = false;
1377
1378         if (!priv->up || priv->bHwRadioOff)
1379                 return;
1380
1381         if (priv->rtllib->state >= RTLLIB_LINKED) {
1382                 if (priv->rtllib->CntAfterLink < 2)
1383                         priv->rtllib->CntAfterLink++;
1384         } else {
1385                 priv->rtllib->CntAfterLink = 0;
1386         }
1387
1388         rtl92e_dm_watchdog(dev);
1389
1390         if (!rtllib_act_scanning(priv->rtllib, false)) {
1391                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1392                      RTLLIB_NOLINK) &&
1393                      (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1394                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1395                         if ((ieee->PowerSaveControl.ReturnPoint ==
1396                              IPS_CALLBACK_NONE) &&
1397                              (!ieee->bNetPromiscuousMode)) {
1398                                 RT_TRACE(COMP_PS,
1399                                          "====================>haha: rtl92e_ips_enter()\n");
1400                                 rtl92e_ips_enter(dev);
1401                         }
1402                 }
1403         }
1404         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1405              IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1406                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1407                 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1408                         bBusyTraffic = true;
1409
1410
1411                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1412                     ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1413                         bHigherBusyTraffic = true;
1414                         if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1415                                 bHigherBusyRxTraffic = true;
1416                         else
1417                                 bHigherBusyRxTraffic = false;
1418                 }
1419
1420                 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1421                     ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1422                     (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1423                         bEnterPS = false;
1424                 else
1425                         bEnterPS = true;
1426
1427                 if (ieee->current_network.beacon_interval < 95)
1428                         bEnterPS = false;
1429
1430                 if (bEnterPS)
1431                         rtl92e_leisure_ps_enter(dev);
1432                 else
1433                         rtl92e_leisure_ps_leave(dev);
1434
1435         } else {
1436                 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1437                 rtl92e_leisure_ps_leave(dev);
1438         }
1439
1440         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1441         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1442         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1443         ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1444
1445         ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1446         ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1447
1448         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1449                 u32     TotalRxBcnNum = 0;
1450                 u32     TotalRxDataNum = 0;
1451
1452                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1453
1454                 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1455                         priv->check_roaming_cnt++;
1456                 else
1457                         priv->check_roaming_cnt = 0;
1458
1459
1460                 if (priv->check_roaming_cnt > 0) {
1461                         if (ieee->eRFPowerState == eRfOff)
1462                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1463
1464                         netdev_info(dev,
1465                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1466                                     __func__, priv->chan);
1467
1468                         ieee->state = RTLLIB_ASSOCIATING;
1469
1470                         RemovePeerTS(priv->rtllib,
1471                                      priv->rtllib->current_network.bssid);
1472                         ieee->is_roaming = true;
1473                         ieee->is_set_key = false;
1474                         ieee->link_change(dev);
1475                         if (ieee->LedControlHandler)
1476                                 ieee->LedControlHandler(ieee->dev,
1477                                                         LED_CTL_START_TO_LINK);
1478
1479                         notify_wx_assoc_event(ieee);
1480
1481                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1482                              (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1483                                 schedule_delayed_work(
1484                                         &ieee->associate_procedure_wq, 0);
1485
1486                         priv->check_roaming_cnt = 0;
1487                 }
1488                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1489                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1490
1491         }
1492
1493         spin_lock_irqsave(&priv->tx_lock, flags);
1494         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1495             (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1496                 ResetType = _rtl92e_if_check_reset(dev);
1497                 check_reset_cnt = 3;
1498         }
1499         spin_unlock_irqrestore(&priv->tx_lock, flags);
1500
1501         if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1502                 priv->ResetProgress = RESET_TYPE_NORMAL;
1503                 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1504                 return;
1505         }
1506
1507         if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1508               ResetType == RESET_TYPE_SILENT)))
1509                 _rtl92e_if_silent_reset(dev);
1510         priv->force_reset = false;
1511         priv->bForcedSilentReset = false;
1512         priv->bResetInProgress = false;
1513         RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1514 }
1515
1516 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1517 {
1518         struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1519
1520         schedule_delayed_work(&priv->watch_dog_wq, 0);
1521         mod_timer(&priv->watch_dog_timer, jiffies +
1522                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1523 }
1524
1525 /****************************************************************************
1526  * ---------------------------- NIC TX/RX STUFF---------------------------
1527  ****************************************************************************/
1528 void rtl92e_rx_enable(struct net_device *dev)
1529 {
1530         struct r8192_priv *priv = rtllib_priv(dev);
1531
1532         priv->ops->rx_enable(dev);
1533 }
1534
1535 void rtl92e_tx_enable(struct net_device *dev)
1536 {
1537         struct r8192_priv *priv = rtllib_priv(dev);
1538
1539         priv->ops->tx_enable(dev);
1540
1541         rtllib_reset_queue(priv->rtllib);
1542 }
1543
1544
1545 static void _rtl92e_free_rx_ring(struct net_device *dev)
1546 {
1547         struct r8192_priv *priv = rtllib_priv(dev);
1548         int i, rx_queue_idx;
1549
1550         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1551              rx_queue_idx++) {
1552                 for (i = 0; i < priv->rxringcount; i++) {
1553                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1554
1555                         if (!skb)
1556                                 continue;
1557
1558                         dma_unmap_single(&priv->pdev->dev,
1559                                          *((dma_addr_t *)skb->cb),
1560                                          priv->rxbuffersize, DMA_FROM_DEVICE);
1561                         kfree_skb(skb);
1562                 }
1563
1564                 dma_free_coherent(&priv->pdev->dev,
1565                                   sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1566                                   priv->rx_ring[rx_queue_idx],
1567                                   priv->rx_ring_dma[rx_queue_idx]);
1568                 priv->rx_ring[rx_queue_idx] = NULL;
1569         }
1570 }
1571
1572 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1573 {
1574         struct r8192_priv *priv = rtllib_priv(dev);
1575         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1576
1577         while (skb_queue_len(&ring->queue)) {
1578                 struct tx_desc *entry = &ring->desc[ring->idx];
1579                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1580
1581                 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1582                                  skb->len, DMA_TO_DEVICE);
1583                 kfree_skb(skb);
1584                 ring->idx = (ring->idx + 1) % ring->entries;
1585         }
1586
1587         dma_free_coherent(&priv->pdev->dev,
1588                           sizeof(*ring->desc) * ring->entries, ring->desc,
1589                           ring->dma);
1590         ring->desc = NULL;
1591 }
1592
1593 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1594                                    int rate)
1595 {
1596         struct r8192_priv *priv = rtllib_priv(dev);
1597         int ret;
1598         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1599                                     MAX_DEV_ADDR_SIZE);
1600         u8 queue_index = tcb_desc->queue_index;
1601
1602         if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1603              priv->bResetInProgress) {
1604                 kfree_skb(skb);
1605                 return;
1606         }
1607
1608         if (queue_index == TXCMD_QUEUE)
1609                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1610                             __func__);
1611
1612         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1613         skb_push(skb, priv->rtllib->tx_headroom);
1614         ret = _rtl92e_tx(dev, skb);
1615
1616         if (queue_index != MGNT_QUEUE) {
1617                 priv->rtllib->stats.tx_bytes += (skb->len -
1618                                                  priv->rtllib->tx_headroom);
1619                 priv->rtllib->stats.tx_packets++;
1620         }
1621
1622         if (ret != 0)
1623                 kfree_skb(skb);
1624 }
1625
1626 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1627 {
1628         struct r8192_priv *priv = rtllib_priv(dev);
1629         int ret;
1630         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1631                                     MAX_DEV_ADDR_SIZE);
1632         u8 queue_index = tcb_desc->queue_index;
1633
1634         if (queue_index != TXCMD_QUEUE) {
1635                 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1636                      !priv->up || priv->bResetInProgress) {
1637                         kfree_skb(skb);
1638                         return 0;
1639                 }
1640         }
1641
1642         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1643         if (queue_index == TXCMD_QUEUE) {
1644                 _rtl92e_tx_cmd(dev, skb);
1645                 return 0;
1646         }
1647
1648         tcb_desc->RATRIndex = 7;
1649         tcb_desc->bTxDisableRateFallBack = 1;
1650         tcb_desc->bTxUseDriverAssingedRate = 1;
1651         tcb_desc->bTxEnableFwCalcDur = 1;
1652         skb_push(skb, priv->rtllib->tx_headroom);
1653         ret = _rtl92e_tx(dev, skb);
1654         if (ret != 0)
1655                 kfree_skb(skb);
1656         return ret;
1657 }
1658
1659 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1660 {
1661         struct r8192_priv *priv = rtllib_priv(dev);
1662
1663         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1664
1665         while (skb_queue_len(&ring->queue)) {
1666                 struct tx_desc *entry = &ring->desc[ring->idx];
1667                 struct sk_buff *skb;
1668
1669                 if (prio != BEACON_QUEUE) {
1670                         if (entry->OWN)
1671                                 return;
1672                         ring->idx = (ring->idx + 1) % ring->entries;
1673                 }
1674
1675                 skb = __skb_dequeue(&ring->queue);
1676                 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1677                                  skb->len, DMA_TO_DEVICE);
1678
1679                 kfree_skb(skb);
1680         }
1681         if (prio != BEACON_QUEUE)
1682                 tasklet_schedule(&priv->irq_tx_tasklet);
1683 }
1684
1685 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1686 {
1687         struct r8192_priv *priv = rtllib_priv(dev);
1688         struct rtl8192_tx_ring *ring;
1689         struct tx_desc_cmd *entry;
1690         unsigned int idx;
1691         struct cb_desc *tcb_desc;
1692         unsigned long flags;
1693
1694         spin_lock_irqsave(&priv->irq_th_lock, flags);
1695         ring = &priv->tx_ring[TXCMD_QUEUE];
1696
1697         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1698         entry = (struct tx_desc_cmd *)&ring->desc[idx];
1699
1700         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1701
1702         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1703
1704         __skb_queue_tail(&ring->queue, skb);
1705         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1706 }
1707
1708 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1709 {
1710         struct r8192_priv *priv = rtllib_priv(dev);
1711         struct rtl8192_tx_ring  *ring;
1712         unsigned long flags;
1713         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1714                                     MAX_DEV_ADDR_SIZE);
1715         struct tx_desc *pdesc = NULL;
1716         struct rtllib_hdr_1addr *header = NULL;
1717         u16 fc = 0, type = 0;
1718         u8 *pda_addr = NULL;
1719         int   idx;
1720         u32 fwinfo_size = 0;
1721
1722         if (priv->bdisable_nic) {
1723                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1724                             __func__);
1725                 return skb->len;
1726         }
1727
1728         priv->rtllib->bAwakePktSent = true;
1729
1730         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1731
1732         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1733         fc = le16_to_cpu(header->frame_ctl);
1734         type = WLAN_FC_GET_TYPE(fc);
1735         pda_addr = header->addr1;
1736
1737         if (is_broadcast_ether_addr(pda_addr))
1738                 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1739         else if (is_multicast_ether_addr(pda_addr))
1740                 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1741         else
1742                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1743
1744         spin_lock_irqsave(&priv->irq_th_lock, flags);
1745         ring = &priv->tx_ring[tcb_desc->queue_index];
1746         if (tcb_desc->queue_index != BEACON_QUEUE)
1747                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1748         else
1749                 idx = 0;
1750
1751         pdesc = &ring->desc[idx];
1752         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1753                 netdev_warn(dev,
1754                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1755                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1756                             skb_queue_len(&ring->queue));
1757                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1758                 return skb->len;
1759         }
1760
1761         if (type == RTLLIB_FTYPE_DATA) {
1762                 if (priv->rtllib->LedControlHandler)
1763                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1764         }
1765         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1766         __skb_queue_tail(&ring->queue, skb);
1767         pdesc->OWN = 1;
1768         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1769         netif_trans_update(dev);
1770
1771         rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1772         return 0;
1773 }
1774
1775 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1776 {
1777         struct r8192_priv *priv = rtllib_priv(dev);
1778         struct rx_desc *entry = NULL;
1779         int i, rx_queue_idx;
1780
1781         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1782                 priv->rx_ring[rx_queue_idx] = dma_alloc_coherent(&priv->pdev->dev,
1783                                                                  sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1784                                                                  &priv->rx_ring_dma[rx_queue_idx],
1785                                                                  GFP_ATOMIC);
1786                 if (!priv->rx_ring[rx_queue_idx] ||
1787                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1788                         netdev_warn(dev, "Cannot allocate RX ring\n");
1789                         return -ENOMEM;
1790                 }
1791
1792                 priv->rx_idx[rx_queue_idx] = 0;
1793
1794                 for (i = 0; i < priv->rxringcount; i++) {
1795                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1796                         dma_addr_t *mapping;
1797
1798                         entry = &priv->rx_ring[rx_queue_idx][i];
1799                         if (!skb)
1800                                 return 0;
1801                         skb->dev = dev;
1802                         priv->rx_buf[rx_queue_idx][i] = skb;
1803                         mapping = (dma_addr_t *)skb->cb;
1804                         *mapping = dma_map_single(&priv->pdev->dev,
1805                                                   skb_tail_pointer_rsl(skb),
1806                                                   priv->rxbuffersize, DMA_FROM_DEVICE);
1807                         if (dma_mapping_error(&priv->pdev->dev, *mapping)) {
1808                                 dev_kfree_skb_any(skb);
1809                                 return -1;
1810                         }
1811                         entry->BufferAddress = *mapping;
1812
1813                         entry->Length = priv->rxbuffersize;
1814                         entry->OWN = 1;
1815                 }
1816
1817                 if (entry)
1818                         entry->EOR = 1;
1819         }
1820         return 0;
1821 }
1822
1823 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1824                                  unsigned int entries)
1825 {
1826         struct r8192_priv *priv = rtllib_priv(dev);
1827         struct tx_desc *ring;
1828         dma_addr_t dma;
1829         int i;
1830
1831         ring = dma_alloc_coherent(&priv->pdev->dev, sizeof(*ring) * entries,
1832                                   &dma, GFP_ATOMIC);
1833         if (!ring || (unsigned long)ring & 0xFF) {
1834                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1835                 return -ENOMEM;
1836         }
1837
1838         priv->tx_ring[prio].desc = ring;
1839         priv->tx_ring[prio].dma = dma;
1840         priv->tx_ring[prio].idx = 0;
1841         priv->tx_ring[prio].entries = entries;
1842         skb_queue_head_init(&priv->tx_ring[prio].queue);
1843
1844         for (i = 0; i < entries; i++)
1845                 ring[i].NextDescAddress =
1846                         (u32)dma + ((i + 1) % entries) *
1847                         sizeof(*ring);
1848
1849         return 0;
1850 }
1851
1852 static short _rtl92e_pci_initdescring(struct net_device *dev)
1853 {
1854         u32 ret;
1855         int i;
1856         struct r8192_priv *priv = rtllib_priv(dev);
1857
1858         ret = _rtl92e_alloc_rx_ring(dev);
1859         if (ret)
1860                 return ret;
1861
1862         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1863                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1864                 if (ret)
1865                         goto err_free_rings;
1866         }
1867
1868         return 0;
1869
1870 err_free_rings:
1871         _rtl92e_free_rx_ring(dev);
1872         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1873                 if (priv->tx_ring[i].desc)
1874                         _rtl92e_free_tx_ring(dev, i);
1875         return 1;
1876 }
1877
1878 void rtl92e_reset_desc_ring(struct net_device *dev)
1879 {
1880         struct r8192_priv *priv = rtllib_priv(dev);
1881         int i, rx_queue_idx;
1882         unsigned long flags = 0;
1883
1884         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1885                 if (priv->rx_ring[rx_queue_idx]) {
1886                         struct rx_desc *entry = NULL;
1887
1888                         for (i = 0; i < priv->rxringcount; i++) {
1889                                 entry = &priv->rx_ring[rx_queue_idx][i];
1890                                 entry->OWN = 1;
1891                         }
1892                         priv->rx_idx[rx_queue_idx] = 0;
1893                 }
1894         }
1895
1896         spin_lock_irqsave(&priv->irq_th_lock, flags);
1897         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1898                 if (priv->tx_ring[i].desc) {
1899                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1900
1901                         while (skb_queue_len(&ring->queue)) {
1902                                 struct tx_desc *entry = &ring->desc[ring->idx];
1903                                 struct sk_buff *skb =
1904                                                  __skb_dequeue(&ring->queue);
1905
1906                                 dma_unmap_single(&priv->pdev->dev,
1907                                                  entry->TxBuffAddr, skb->len,
1908                                                  DMA_TO_DEVICE);
1909                                 kfree_skb(skb);
1910                                 ring->idx = (ring->idx + 1) % ring->entries;
1911                         }
1912                         ring->idx = 0;
1913                 }
1914         }
1915         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1916 }
1917
1918 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1919                                     struct rtllib_rx_stats *stats)
1920 {
1921         struct r8192_priv *priv = rtllib_priv(dev);
1922
1923         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1924                 stats->mac_time = priv->LastRxDescTSF;
1925         else
1926                 priv->LastRxDescTSF = stats->mac_time;
1927 }
1928
1929 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1930 {
1931         long    signal_power;
1932
1933         signal_power = (long)((signal_strength_index + 1) >> 1);
1934         signal_power -= 95;
1935
1936         return signal_power;
1937 }
1938
1939
1940 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1941                                  struct rtllib_rx_stats *pprevious_stats)
1942 {
1943         int weighting = 0;
1944
1945
1946         if (priv->stats.recv_signal_power == 0)
1947                 priv->stats.recv_signal_power =
1948                                          pprevious_stats->RecvSignalPower;
1949
1950         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1951                 weighting = 5;
1952         else if (pprevious_stats->RecvSignalPower <
1953                  priv->stats.recv_signal_power)
1954                 weighting = (-5);
1955         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1956                                         pprevious_stats->RecvSignalPower +
1957                                         weighting) / 6;
1958 }
1959
1960 u8 rtl92e_rx_db_to_percent(s8 antpower)
1961 {
1962         if ((antpower <= -100) || (antpower >= 20))
1963                 return  0;
1964         else if (antpower >= 0)
1965                 return  100;
1966         else
1967                 return  100 + antpower;
1968
1969 }       /* QueryRxPwrPercentage */
1970
1971 u8 rtl92e_evm_db_to_percent(s8 value)
1972 {
1973         s8 ret_val = clamp(-value, 0, 33) * 3;
1974
1975         if (ret_val == 99)
1976                 ret_val = 100;
1977
1978         return ret_val;
1979 }
1980
1981 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
1982                             struct rtllib_rx_stats *ptarget_stats)
1983 {
1984         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
1985         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
1986 }
1987
1988
1989
1990 static void _rtl92e_rx_normal(struct net_device *dev)
1991 {
1992         struct r8192_priv *priv = rtllib_priv(dev);
1993         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
1994         bool unicast_packet = false;
1995         bool bLedBlinking = true;
1996         u16 fc = 0, type = 0;
1997         u32 skb_len = 0;
1998         int rx_queue_idx = RX_MPDU_QUEUE;
1999
2000         struct rtllib_rx_stats stats = {
2001                 .signal = 0,
2002                 .noise = (u8)-98,
2003                 .rate = 0,
2004                 .freq = RTLLIB_24GHZ_BAND,
2005         };
2006         unsigned int count = priv->rxringcount;
2007
2008         stats.nic_type = NIC_8192E;
2009
2010         while (count--) {
2011                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2012                                         [priv->rx_idx[rx_queue_idx]];
2013                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2014                                       [priv->rx_idx[rx_queue_idx]];
2015                 struct sk_buff *new_skb;
2016
2017                 if (pdesc->OWN)
2018                         return;
2019                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2020                 pdesc, skb))
2021                         goto done;
2022                 new_skb = dev_alloc_skb(priv->rxbuffersize);
2023                 /* if allocation of new skb failed - drop current packet
2024                  * and reuse skb
2025                  */
2026                 if (unlikely(!new_skb))
2027                         goto done;
2028
2029                 dma_unmap_single(&priv->pdev->dev, *((dma_addr_t *)skb->cb),
2030                                  priv->rxbuffersize, DMA_FROM_DEVICE);
2031
2032                 skb_put(skb, pdesc->Length);
2033                 skb_reserve(skb, stats.RxDrvInfoSize +
2034                         stats.RxBufShift);
2035                 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2036                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2037                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2038                         /* unicast packet */
2039                         unicast_packet = true;
2040                 }
2041                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2042                 type = WLAN_FC_GET_TYPE(fc);
2043                 if (type == RTLLIB_FTYPE_MGMT)
2044                         bLedBlinking = false;
2045
2046                 if (bLedBlinking)
2047                         if (priv->rtllib->LedControlHandler)
2048                                 priv->rtllib->LedControlHandler(dev,
2049                                                         LED_CTL_RX);
2050
2051                 if (stats.bCRC) {
2052                         if (type != RTLLIB_FTYPE_MGMT)
2053                                 priv->stats.rxdatacrcerr++;
2054                         else
2055                                 priv->stats.rxmgmtcrcerr++;
2056                 }
2057
2058                 skb_len = skb->len;
2059
2060                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2061                         dev_kfree_skb_any(skb);
2062                 } else {
2063                         priv->stats.rxok++;
2064                         if (unicast_packet)
2065                                 priv->stats.rxbytesunicast += skb_len;
2066                 }
2067
2068                 skb = new_skb;
2069                 skb->dev = dev;
2070
2071                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2072                                                                  skb;
2073                 *((dma_addr_t *)skb->cb) = dma_map_single(&priv->pdev->dev,
2074                                                           skb_tail_pointer_rsl(skb),
2075                                                           priv->rxbuffersize, DMA_FROM_DEVICE);
2076                 if (dma_mapping_error(&priv->pdev->dev, *((dma_addr_t *)skb->cb))) {
2077                         dev_kfree_skb_any(skb);
2078                         return;
2079                 }
2080 done:
2081                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2082                 pdesc->OWN = 1;
2083                 pdesc->Length = priv->rxbuffersize;
2084                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
2085                         pdesc->EOR = 1;
2086                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2087                                               priv->rxringcount;
2088         }
2089
2090 }
2091
2092 static void _rtl92e_tx_resume(struct net_device *dev)
2093 {
2094         struct r8192_priv *priv = rtllib_priv(dev);
2095         struct rtllib_device *ieee = priv->rtllib;
2096         struct sk_buff *skb;
2097         int queue_index;
2098
2099         for (queue_index = BK_QUEUE;
2100              queue_index < MAX_QUEUE_SIZE; queue_index++) {
2101                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2102                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2103                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2104                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2105                 }
2106         }
2107 }
2108
2109 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t)
2110 {
2111         struct r8192_priv *priv = from_tasklet(priv, t, irq_tx_tasklet);
2112
2113         _rtl92e_tx_resume(priv->rtllib->dev);
2114 }
2115
2116 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t)
2117 {
2118         struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
2119
2120         _rtl92e_rx_normal(priv->rtllib->dev);
2121
2122         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2123                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2124 }
2125
2126 /****************************************************************************
2127  * ---------------------------- NIC START/CLOSE STUFF---------------------------
2128  ****************************************************************************/
2129 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2130 {
2131         cancel_delayed_work_sync(&priv->watch_dog_wq);
2132         cancel_delayed_work_sync(&priv->update_beacon_wq);
2133         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2134         cancel_work_sync(&priv->reset_wq);
2135         cancel_work_sync(&priv->qos_activate);
2136 }
2137
2138 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2139 {
2140         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2141                 return -1;
2142         return 0;
2143 }
2144
2145 static int _rtl92e_open(struct net_device *dev)
2146 {
2147         struct r8192_priv *priv = rtllib_priv(dev);
2148         int ret;
2149
2150         mutex_lock(&priv->wx_mutex);
2151         ret = _rtl92e_try_up(dev);
2152         mutex_unlock(&priv->wx_mutex);
2153         return ret;
2154
2155 }
2156
2157 static int _rtl92e_try_up(struct net_device *dev)
2158 {
2159         struct r8192_priv *priv = rtllib_priv(dev);
2160
2161         if (priv->up == 1)
2162                 return -1;
2163         return _rtl92e_up(dev, false);
2164 }
2165
2166
2167 static int _rtl92e_close(struct net_device *dev)
2168 {
2169         struct r8192_priv *priv = rtllib_priv(dev);
2170         int ret;
2171
2172         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2173                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2174                 rtllib_stop_scan(priv->rtllib);
2175         }
2176
2177         mutex_lock(&priv->wx_mutex);
2178
2179         ret = _rtl92e_down(dev, true);
2180
2181         mutex_unlock(&priv->wx_mutex);
2182
2183         return ret;
2184
2185 }
2186
2187 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2188 {
2189         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2190                 return -1;
2191
2192         return 0;
2193 }
2194
2195 void rtl92e_commit(struct net_device *dev)
2196 {
2197         struct r8192_priv *priv = rtllib_priv(dev);
2198
2199         if (priv->up == 0)
2200                 return;
2201         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2202         rtl92e_irq_disable(dev);
2203         priv->ops->stop_adapter(dev, true);
2204         _rtl92e_up(dev, false);
2205 }
2206
2207 static void _rtl92e_restart(void *data)
2208 {
2209         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2210                                   reset_wq);
2211         struct net_device *dev = priv->rtllib->dev;
2212
2213         mutex_lock(&priv->wx_mutex);
2214
2215         rtl92e_commit(dev);
2216
2217         mutex_unlock(&priv->wx_mutex);
2218 }
2219
2220 static void _rtl92e_set_multicast(struct net_device *dev)
2221 {
2222         struct r8192_priv *priv = rtllib_priv(dev);
2223         short promisc;
2224
2225         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2226         priv->promisc = promisc;
2227
2228 }
2229
2230
2231 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2232 {
2233         struct r8192_priv *priv = rtllib_priv(dev);
2234         struct sockaddr *addr = mac;
2235
2236         mutex_lock(&priv->wx_mutex);
2237
2238         eth_hw_addr_set(dev, addr->sa_data);
2239
2240         schedule_work(&priv->reset_wq);
2241         mutex_unlock(&priv->wx_mutex);
2242
2243         return 0;
2244 }
2245
2246 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2247 {
2248         struct net_device *dev = netdev;
2249         struct r8192_priv *priv = rtllib_priv(dev);
2250         unsigned long flags;
2251         u32 inta;
2252         u32 intb;
2253
2254         intb = 0;
2255
2256         if (priv->irq_enabled == 0)
2257                 goto done;
2258
2259         spin_lock_irqsave(&priv->irq_th_lock, flags);
2260
2261         priv->ops->interrupt_recognized(dev, &inta, &intb);
2262         priv->stats.shints++;
2263
2264         if (!inta) {
2265                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2266                 goto done;
2267         }
2268
2269         if (inta == 0xffff) {
2270                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2271                 goto done;
2272         }
2273
2274         priv->stats.ints++;
2275
2276         if (!netif_running(dev)) {
2277                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2278                 goto done;
2279         }
2280
2281         if (inta & IMR_TBDOK) {
2282                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2283                 priv->stats.txbeaconokint++;
2284         }
2285
2286         if (inta & IMR_TBDER) {
2287                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2288                 priv->stats.txbeaconerr++;
2289         }
2290
2291         if (inta & IMR_BDOK)
2292                 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2293
2294         if (inta  & IMR_MGNTDOK) {
2295                 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2296                 priv->stats.txmanageokint++;
2297                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2298                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2299                 if (priv->rtllib->ack_tx_to_ieee) {
2300                         if (_rtl92e_is_tx_queue_empty(dev)) {
2301                                 priv->rtllib->ack_tx_to_ieee = 0;
2302                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2303                         }
2304                 }
2305                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2306         }
2307
2308         if (inta & IMR_COMDOK) {
2309                 priv->stats.txcmdpktokint++;
2310                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2311         }
2312
2313         if (inta & IMR_HIGHDOK)
2314                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2315
2316         if (inta & IMR_ROK) {
2317                 priv->stats.rxint++;
2318                 priv->InterruptLog.nIMR_ROK++;
2319                 tasklet_schedule(&priv->irq_rx_tasklet);
2320         }
2321
2322         if (inta & IMR_BcnInt) {
2323                 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2324                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2325         }
2326
2327         if (inta & IMR_RDU) {
2328                 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2329                 priv->stats.rxrdu++;
2330                 rtl92e_writel(dev, INTA_MASK,
2331                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2332                 tasklet_schedule(&priv->irq_rx_tasklet);
2333         }
2334
2335         if (inta & IMR_RXFOVW) {
2336                 RT_TRACE(COMP_INTR, "rx overflow !\n");
2337                 priv->stats.rxoverflow++;
2338                 tasklet_schedule(&priv->irq_rx_tasklet);
2339         }
2340
2341         if (inta & IMR_TXFOVW)
2342                 priv->stats.txoverflow++;
2343
2344         if (inta & IMR_BKDOK) {
2345                 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2346                 priv->stats.txbkokint++;
2347                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2348                 _rtl92e_tx_isr(dev, BK_QUEUE);
2349         }
2350
2351         if (inta & IMR_BEDOK) {
2352                 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2353                 priv->stats.txbeokint++;
2354                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2355                 _rtl92e_tx_isr(dev, BE_QUEUE);
2356         }
2357
2358         if (inta & IMR_VIDOK) {
2359                 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2360                 priv->stats.txviokint++;
2361                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2362                 _rtl92e_tx_isr(dev, VI_QUEUE);
2363         }
2364
2365         if (inta & IMR_VODOK) {
2366                 priv->stats.txvookint++;
2367                 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2368                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2369                 _rtl92e_tx_isr(dev, VO_QUEUE);
2370         }
2371
2372         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2373
2374 done:
2375
2376         return IRQ_HANDLED;
2377 }
2378
2379
2380
2381 /****************************************************************************
2382  * ---------------------------- PCI_STUFF---------------------------
2383  ****************************************************************************/
2384 static const struct net_device_ops rtl8192_netdev_ops = {
2385         .ndo_open = _rtl92e_open,
2386         .ndo_stop = _rtl92e_close,
2387         .ndo_tx_timeout = _rtl92e_tx_timeout,
2388         .ndo_set_rx_mode = _rtl92e_set_multicast,
2389         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2390         .ndo_validate_addr = eth_validate_addr,
2391         .ndo_start_xmit = rtllib_xmit,
2392 };
2393
2394 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2395                              const struct pci_device_id *id)
2396 {
2397         unsigned long ioaddr = 0;
2398         struct net_device *dev = NULL;
2399         struct r8192_priv *priv = NULL;
2400         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2401         unsigned long pmem_start, pmem_len, pmem_flags;
2402         int err = -ENOMEM;
2403         u8 revision_id;
2404
2405         RT_TRACE(COMP_INIT, "Configuring chip resources");
2406
2407         if (pci_enable_device(pdev)) {
2408                 dev_err(&pdev->dev, "Failed to enable PCI device");
2409                 return -EIO;
2410         }
2411
2412         pci_set_master(pdev);
2413
2414         if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2415                 if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2416                         dev_info(&pdev->dev,
2417                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2418                         goto err_pci_disable;
2419                 }
2420         }
2421         dev = alloc_rtllib(sizeof(struct r8192_priv));
2422         if (!dev)
2423                 goto err_pci_disable;
2424
2425         err = -ENODEV;
2426
2427         pci_set_drvdata(pdev, dev);
2428         SET_NETDEV_DEV(dev, &pdev->dev);
2429         priv = rtllib_priv(dev);
2430         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2431         priv->pdev = pdev;
2432         priv->rtllib->pdev = pdev;
2433         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2434             (pdev->subsystem_device == 0x3304))
2435                 priv->rtllib->bSupportRemoteWakeUp = 1;
2436         else
2437                 priv->rtllib->bSupportRemoteWakeUp = 0;
2438
2439         pmem_start = pci_resource_start(pdev, 1);
2440         pmem_len = pci_resource_len(pdev, 1);
2441         pmem_flags = pci_resource_flags(pdev, 1);
2442
2443         if (!(pmem_flags & IORESOURCE_MEM)) {
2444                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2445                 goto err_rel_rtllib;
2446         }
2447
2448         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2449                  pmem_start);
2450         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2451                 netdev_err(dev, "request_mem_region failed!");
2452                 goto err_rel_rtllib;
2453         }
2454
2455
2456         ioaddr = (unsigned long)ioremap(pmem_start, pmem_len);
2457         if (ioaddr == (unsigned long)NULL) {
2458                 netdev_err(dev, "ioremap failed!");
2459                 goto err_rel_mem;
2460         }
2461
2462         dev->mem_start = ioaddr;
2463         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2464
2465         pci_read_config_byte(pdev, 0x08, &revision_id);
2466         /* If the revisionid is 0x10, the device uses rtl8192se. */
2467         if (pdev->device == 0x8192 && revision_id == 0x10)
2468                 goto err_unmap;
2469
2470         priv->ops = ops;
2471
2472         if (!rtl92e_check_adapter(pdev, dev))
2473                 goto err_unmap;
2474
2475         dev->irq = pdev->irq;
2476         priv->irq = 0;
2477
2478         dev->netdev_ops = &rtl8192_netdev_ops;
2479
2480         dev->wireless_handlers = &r8192_wx_handlers_def;
2481         dev->ethtool_ops = &rtl819x_ethtool_ops;
2482
2483         dev->type = ARPHRD_ETHER;
2484         dev->watchdog_timeo = HZ * 3;
2485
2486         if (dev_alloc_name(dev, ifname) < 0) {
2487                 RT_TRACE(COMP_INIT,
2488                          "Oops: devname already taken! Trying wlan%%d...\n");
2489                 dev_alloc_name(dev, ifname);
2490         }
2491
2492         RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2493         if (_rtl92e_init(dev) != 0) {
2494                 netdev_warn(dev, "Initialization failed");
2495                 goto err_free_irq;
2496         }
2497
2498         netif_carrier_off(dev);
2499         netif_stop_queue(dev);
2500
2501         if (register_netdev(dev))
2502                 goto err_free_irq;
2503         RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2504
2505         if (priv->polling_timer_on == 0)
2506                 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2507
2508         RT_TRACE(COMP_INIT, "Driver probe completed\n");
2509         return 0;
2510
2511 err_free_irq:
2512         free_irq(dev->irq, dev);
2513         priv->irq = 0;
2514 err_unmap:
2515         iounmap((void __iomem *)ioaddr);
2516 err_rel_mem:
2517         release_mem_region(pmem_start, pmem_len);
2518 err_rel_rtllib:
2519         free_rtllib(dev);
2520 err_pci_disable:
2521         pci_disable_device(pdev);
2522         return err;
2523 }
2524
2525 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2526 {
2527         struct net_device *dev = pci_get_drvdata(pdev);
2528         struct r8192_priv *priv;
2529         u32 i;
2530
2531         if (dev) {
2532                 unregister_netdev(dev);
2533
2534                 priv = rtllib_priv(dev);
2535
2536                 del_timer_sync(&priv->gpio_polling_timer);
2537                 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2538                 priv->polling_timer_on = 0;
2539                 _rtl92e_down(dev, true);
2540                 rtl92e_dm_deinit(dev);
2541                 vfree(priv->pFirmware);
2542                 priv->pFirmware = NULL;
2543                 _rtl92e_free_rx_ring(dev);
2544                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2545                         _rtl92e_free_tx_ring(dev, i);
2546
2547                 if (priv->irq) {
2548                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2549                         free_irq(dev->irq, dev);
2550                         priv->irq = 0;
2551                 }
2552
2553                 if (dev->mem_start != 0) {
2554                         iounmap((void __iomem *)dev->mem_start);
2555                         release_mem_region(pci_resource_start(pdev, 1),
2556                                         pci_resource_len(pdev, 1));
2557                 }
2558
2559                 free_rtllib(dev);
2560         }
2561
2562         pci_disable_device(pdev);
2563         RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2564 }
2565
2566 bool rtl92e_enable_nic(struct net_device *dev)
2567 {
2568         bool init_status = true;
2569         struct r8192_priv *priv = rtllib_priv(dev);
2570         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2571                                         (&priv->rtllib->PowerSaveControl);
2572
2573         if (!priv->up) {
2574                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2575                 priv->bdisable_nic = false;
2576                 return false;
2577         }
2578
2579         RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2580         priv->bfirst_init = true;
2581         init_status = priv->ops->initialize_adapter(dev);
2582         if (!init_status) {
2583                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2584                 priv->bdisable_nic = false;
2585                 return false;
2586         }
2587         RT_TRACE(COMP_INIT, "start adapter finished\n");
2588         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2589         priv->bfirst_init = false;
2590
2591         rtl92e_irq_enable(dev);
2592         priv->bdisable_nic = false;
2593         RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2594         return init_status;
2595 }
2596
2597 bool rtl92e_disable_nic(struct net_device *dev)
2598 {
2599         struct r8192_priv *priv = rtllib_priv(dev);
2600         u8 tmp_state = 0;
2601
2602         RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2603         priv->bdisable_nic = true;
2604         tmp_state = priv->rtllib->state;
2605         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2606         priv->rtllib->state = tmp_state;
2607         _rtl92e_cancel_deferred_work(priv);
2608         rtl92e_irq_disable(dev);
2609
2610         priv->ops->stop_adapter(dev, false);
2611         RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2612
2613         return true;
2614 }
2615
2616 module_pci_driver(rtl8192_pci_driver);
2617
2618 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2619 {
2620         struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2621
2622         priv->polling_timer_on = 1;
2623
2624         schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2625
2626         mod_timer(&priv->gpio_polling_timer, jiffies +
2627                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2628 }
2629
2630 /***************************************************************************
2631  * ------------------- module init / exit stubs ----------------
2632  ***************************************************************************/
2633 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2634 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2635 MODULE_VERSION(DRV_VERSION);
2636 MODULE_LICENSE("GPL");
2637 /*(DEBLOBBED)*/
2638
2639 module_param(ifname, charp, 0644);
2640 module_param(hwwep, int, 0644);
2641
2642 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2643 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");