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 static const struct rtl819x_ops rtl819xp_ops = {
  29         .nic_type                       = NIC_8192E,
  30         .initialize_adapter             = rtl92e_start_adapter,
  31         .link_change                    = rtl92e_link_change,
  32         .tx_fill_descriptor             = rtl92e_fill_tx_desc,
  33         .tx_fill_cmd_descriptor         = rtl92e_fill_tx_cmd_desc,
  34         .rx_query_status_descriptor     = rtl92e_get_rx_stats,
  35         .rx_command_packet_handler = NULL,
  36         .stop_adapter                   = rtl92e_stop_adapter,
  37         .update_ratr_table              = rtl92e_update_ratr_table,
  38         .irq_enable                     = rtl92e_enable_irq,
  39         .irq_disable                    = rtl92e_disable_irq,
  40         .irq_clear                      = rtl92e_clear_irq,
  41         .rx_enable                      = rtl92e_enable_rx,
  42         .tx_enable                      = rtl92e_enable_tx,
  43         .interrupt_recognized           = rtl92e_ack_irq,
  44         .tx_check_stuck_handler = rtl92e_is_tx_stuck,
  45         .rx_check_stuck_handler = rtl92e_is_rx_stuck,
  46 };
  47
  48 static struct pci_device_id rtl8192_pci_id_tbl[] = {
  49         {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
  50         {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
  51         {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
  52         {}
  53 };
  54
  55 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
  56
  57 static int _rtl92e_pci_probe(struct pci_dev *pdev,
  58                              const struct pci_device_id *id);
  59 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
  60 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
  61
  62 static SIMPLE_DEV_PM_OPS(rtl92e_pm_ops, rtl92e_suspend, rtl92e_resume);
  63
  64 static struct pci_driver rtl8192_pci_driver = {
  65         .name = DRV_NAME,       /* Driver name   */
  66         .id_table = rtl8192_pci_id_tbl, /* PCI_ID table  */
  67         .probe  = _rtl92e_pci_probe,    /* probe fn      */
  68         .remove  = _rtl92e_pci_disconnect,      /* remove fn */
  69         .driver.pm = &rtl92e_pm_ops,
  70 };
  71
  72 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
  73 static void _rtl92e_watchdog_wq_cb(void *data);
  74 static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
  75 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
  76                                    int rate);
  77 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
  78 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
  79 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
  80 static short _rtl92e_pci_initdescring(struct net_device *dev);
  81 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t);
  82 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t);
  83 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
  84 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
  85 static int _rtl92e_try_up(struct net_device *dev);
  86 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
  87 static void _rtl92e_restart(void *data);
  88
  89 /****************************************************************************
  90  *  -----------------------------IO STUFF-------------------------
  91  ****************************************************************************/
  92
  93 u8 rtl92e_readb(struct net_device *dev, int x)
  94 {
  95         return 0xff & readb((u8 __iomem *)dev->mem_start + x);
  96 }
  97
  98 u32 rtl92e_readl(struct net_device *dev, int x)
  99 {
 100         return readl((u8 __iomem *)dev->mem_start + x);
 101 }
 102
 103 u16 rtl92e_readw(struct net_device *dev, int x)
 104 {
 105         return readw((u8 __iomem *)dev->mem_start + x);
 106 }
 107
 108 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
 109 {
 110         writeb(y, (u8 __iomem *)dev->mem_start + x);
 111
 112         udelay(20);
 113 }
 114
 115 void rtl92e_writel(struct net_device *dev, int x, u32 y)
 116 {
 117         writel(y, (u8 __iomem *)dev->mem_start + x);
 118
 119         udelay(20);
 120 }
 121
 122 void rtl92e_writew(struct net_device *dev, int x, u16 y)
 123 {
 124         writew(y, (u8 __iomem *)dev->mem_start + x);
 125
 126         udelay(20);
 127 }
 128
 129 /****************************************************************************
 130  *  -----------------------------GENERAL FUNCTION-------------------------
 131  ****************************************************************************/
 132 bool rtl92e_set_rf_state(struct net_device *dev,
 133                          enum rt_rf_power_state state_to_set,
 134                          RT_RF_CHANGE_SOURCE change_source)
 135 {
 136         struct r8192_priv *priv = rtllib_priv(dev);
 137         struct rtllib_device *ieee = priv->rtllib;
 138         bool action_allowed = false;
 139         bool connect_by_ssid = false;
 140         enum rt_rf_power_state rt_state;
 141         u16 rf_wait_counter = 0;
 142         unsigned long flag;
 143
 144         while (true) {
 145                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
 146                 if (priv->rf_change_in_progress) {
 147                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 148
 149                         while (priv->rf_change_in_progress) {
 150                                 rf_wait_counter++;
 151                                 mdelay(1);
 152
 153                                 if (rf_wait_counter > 100) {
 154                                         netdev_warn(dev,
 155                                                     "%s(): Timeout waiting for RF change.\n",
 156                                                     __func__);
 157                                         return false;
 158                                 }
 159                         }
 160                 } else {
 161                         priv->rf_change_in_progress = true;
 162                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 163                         break;
 164                 }
 165         }
 166
 167         rt_state = priv->rtllib->rf_power_state;
 168
 169         switch (state_to_set) {
 170         case rf_on:
 171                 priv->rtllib->rf_off_reason &= (~change_source);
 172
 173                 if ((change_source == RF_CHANGE_BY_HW) && priv->hw_radio_off)
 174                         priv->hw_radio_off = false;
 175
 176                 if (!priv->rtllib->rf_off_reason) {
 177                         priv->rtllib->rf_off_reason = 0;
 178                         action_allowed = true;
 179
 180                         if (rt_state == rf_off &&
 181                             change_source >= RF_CHANGE_BY_HW)
 182                                 connect_by_ssid = true;
 183                 }
 184                 break;
 185
 186         case rf_off:
 187
 188                 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
 189                     (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
 190                         if ((priv->rtllib->rf_off_reason > RF_CHANGE_BY_IPS) ||
 191                             (change_source > RF_CHANGE_BY_IPS)) {
 192                                 if (ieee->state == RTLLIB_LINKED)
 193                                         priv->blinked_ingpio = true;
 194                                 else
 195                                         priv->blinked_ingpio = false;
 196                                 rtllib_MgntDisconnect(priv->rtllib,
 197                                                       WLAN_REASON_DISASSOC_STA_HAS_LEFT);
 198                         }
 199                 }
 200                 if ((change_source == RF_CHANGE_BY_HW) && !priv->hw_radio_off)
 201                         priv->hw_radio_off = true;
 202                 priv->rtllib->rf_off_reason |= change_source;
 203                 action_allowed = true;
 204                 break;
 205
 206         case rf_sleep:
 207                 priv->rtllib->rf_off_reason |= change_source;
 208                 action_allowed = true;
 209                 break;
 210
 211         default:
 212                 break;
 213         }
 214
 215         if (action_allowed) {
 216                 rtl92e_set_rf_power_state(dev, state_to_set);
 217                 if (state_to_set == rf_on) {
 218                         if (connect_by_ssid && priv->blinked_ingpio) {
 219                                 schedule_delayed_work(
 220                                          &ieee->associate_procedure_wq, 0);
 221                                 priv->blinked_ingpio = false;
 222                         }
 223                 }
 224         }
 225
 226         spin_lock_irqsave(&priv->rf_ps_lock, flag);
 227         priv->rf_change_in_progress = false;
 228         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 229         return action_allowed;
 230 }
 231
 232 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
 233 {
 234         struct r8192_priv *priv = rtllib_priv(dev);
 235         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
 236
 237         if (ring->entries - skb_queue_len(&ring->queue) >= 2)
 238                 return 1;
 239         return 0;
 240 }
 241
 242 static void _rtl92e_tx_timeout(struct net_device *dev, unsigned int txqueue)
 243 {
 244         struct r8192_priv *priv = rtllib_priv(dev);
 245
 246         schedule_work(&priv->reset_wq);
 247         netdev_info(dev, "TXTIMEOUT");
 248 }
 249
 250 void rtl92e_irq_enable(struct net_device *dev)
 251 {
 252         struct r8192_priv *priv = rtllib_priv(dev);
 253
 254         priv->irq_enabled = 1;
 255
 256         priv->ops->irq_enable(dev);
 257 }
 258
 259 void rtl92e_irq_disable(struct net_device *dev)
 260 {
 261         struct r8192_priv *priv = rtllib_priv(dev);
 262
 263         priv->ops->irq_disable(dev);
 264
 265         priv->irq_enabled = 0;
 266 }
 267
 268 static void _rtl92e_set_chan(struct net_device *dev, short ch)
 269 {
 270         struct r8192_priv *priv = rtllib_priv(dev);
 271
 272         if (priv->chan_forced)
 273                 return;
 274
 275         priv->chan = ch;
 276
 277         if (priv->rf_set_chan)
 278                 priv->rf_set_chan(dev, priv->chan);
 279 }
 280
 281 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
 282 {
 283         struct r8192_priv *priv = rtllib_priv(dev);
 284         struct rtllib_network *net = &priv->rtllib->current_network;
 285         bool            ShortPreamble;
 286
 287         if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 288                 if (priv->dot11_current_preamble_mode != PREAMBLE_SHORT) {
 289                         ShortPreamble = true;
 290                         priv->dot11_current_preamble_mode = PREAMBLE_SHORT;
 291                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 292                                         (unsigned char *)&ShortPreamble);
 293                 }
 294         } else {
 295                 if (priv->dot11_current_preamble_mode != PREAMBLE_LONG) {
 296                         ShortPreamble = false;
 297                         priv->dot11_current_preamble_mode = PREAMBLE_LONG;
 298                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 299                                               (unsigned char *)&ShortPreamble);
 300                 }
 301         }
 302
 303         if (net->mode & (IEEE_G | IEEE_N_24G)) {
 304                 u8      slot_time_val;
 305                 u8      cur_slot_time = priv->slot_time;
 306
 307                 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
 308                    (!priv->rtllib->ht_info->current_rt2rt_long_slot_time)) {
 309                         if (cur_slot_time != SHORT_SLOT_TIME) {
 310                                 slot_time_val = SHORT_SLOT_TIME;
 311                                 priv->rtllib->SetHwRegHandler(dev,
 312                                          HW_VAR_SLOT_TIME, &slot_time_val);
 313                         }
 314                 } else {
 315                         if (cur_slot_time != NON_SHORT_SLOT_TIME) {
 316                                 slot_time_val = NON_SHORT_SLOT_TIME;
 317                                 priv->rtllib->SetHwRegHandler(dev,
 318                                          HW_VAR_SLOT_TIME, &slot_time_val);
 319                         }
 320                 }
 321         }
 322 }
 323
 324 static const struct rtllib_qos_parameters def_qos_parameters = {
 325         {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
 326         {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
 327         {2, 2, 2, 2},
 328         {0, 0, 0, 0},
 329         {0, 0, 0, 0}
 330 };
 331
 332 static void _rtl92e_update_beacon(void *data)
 333 {
 334         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 335                                   update_beacon_wq.work);
 336         struct net_device *dev = priv->rtllib->dev;
 337         struct rtllib_device *ieee = priv->rtllib;
 338         struct rtllib_network *net = &ieee->current_network;
 339
 340         if (ieee->ht_info->bCurrentHTSupport)
 341                 HT_update_self_and_peer_setting(ieee, net);
 342         ieee->ht_info->current_rt2rt_long_slot_time = net->bssht.bd_rt2rt_long_slot_time;
 343         ieee->ht_info->RT2RT_HT_Mode = net->bssht.rt2rt_ht_mode;
 344         _rtl92e_update_cap(dev, net->capability);
 345 }
 346
 347 static void _rtl92e_qos_activate(void *data)
 348 {
 349         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
 350                                   qos_activate);
 351         struct net_device *dev = priv->rtllib->dev;
 352         int i;
 353
 354         mutex_lock(&priv->mutex);
 355         if (priv->rtllib->state != RTLLIB_LINKED)
 356                 goto success;
 357
 358         for (i = 0; i <  QOS_QUEUE_NUM; i++)
 359                 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
 360
 361 success:
 362         mutex_unlock(&priv->mutex);
 363 }
 364
 365 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
 366                                              int active_network,
 367                                              struct rtllib_network *network)
 368 {
 369         int ret = 0;
 370         u32 size = sizeof(struct rtllib_qos_parameters);
 371
 372         if (priv->rtllib->state != RTLLIB_LINKED)
 373                 return ret;
 374
 375         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 376                 return ret;
 377
 378         if (network->flags & NETWORK_HAS_QOS_MASK) {
 379                 if (active_network &&
 380                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
 381                         network->qos_data.active = network->qos_data.supported;
 382
 383                 if ((network->qos_data.active == 1) && (active_network == 1) &&
 384                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
 385                                 (network->qos_data.old_param_count !=
 386                                 network->qos_data.param_count)) {
 387                         network->qos_data.old_param_count =
 388                                 network->qos_data.param_count;
 389                         priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 390                         schedule_work(&priv->qos_activate);
 391                 }
 392         } else {
 393                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 394                        &def_qos_parameters, size);
 395
 396                 if ((network->qos_data.active == 1) && (active_network == 1))
 397                         schedule_work(&priv->qos_activate);
 398
 399                 network->qos_data.active = 0;
 400                 network->qos_data.supported = 0;
 401         }
 402
 403         return 0;
 404 }
 405
 406 static int _rtl92e_handle_beacon(struct net_device *dev,
 407                                  struct rtllib_beacon *beacon,
 408                                  struct rtllib_network *network)
 409 {
 410         struct r8192_priv *priv = rtllib_priv(dev);
 411
 412         _rtl92e_qos_handle_probe_response(priv, 1, network);
 413
 414         schedule_delayed_work(&priv->update_beacon_wq, 0);
 415         return 0;
 416 }
 417
 418 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
 419                                   struct rtllib_network *network)
 420 {
 421         unsigned long flags;
 422         u32 size = sizeof(struct rtllib_qos_parameters);
 423         int set_qos_param = 0;
 424
 425         if (!priv || !network)
 426                 return 0;
 427
 428         if (priv->rtllib->state != RTLLIB_LINKED)
 429                 return 0;
 430
 431         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 432                 return 0;
 433
 434         spin_lock_irqsave(&priv->rtllib->lock, flags);
 435         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
 436                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 437                        &network->qos_data.parameters,
 438                        sizeof(struct rtllib_qos_parameters));
 439                 priv->rtllib->current_network.qos_data.active = 1;
 440                 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 441                 set_qos_param = 1;
 442                 priv->rtllib->current_network.qos_data.old_param_count =
 443                         priv->rtllib->current_network.qos_data.param_count;
 444                 priv->rtllib->current_network.qos_data.param_count =
 445                         network->qos_data.param_count;
 446         } else {
 447                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
 448                 &def_qos_parameters, size);
 449                 priv->rtllib->current_network.qos_data.active = 0;
 450                 priv->rtllib->current_network.qos_data.supported = 0;
 451                 set_qos_param = 1;
 452         }
 453
 454         spin_unlock_irqrestore(&priv->rtllib->lock, flags);
 455
 456         if (set_qos_param == 1) {
 457                 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
 458                 schedule_work(&priv->qos_activate);
 459         }
 460         return 0;
 461 }
 462
 463 static int _rtl92e_handle_assoc_response(struct net_device *dev,
 464                                  struct rtllib_assoc_response_frame *resp,
 465                                  struct rtllib_network *network)
 466 {
 467         struct r8192_priv *priv = rtllib_priv(dev);
 468
 469         _rtl92e_qos_assoc_resp(priv, network);
 470         return 0;
 471 }
 472
 473 static void _rtl92e_prepare_beacon(struct tasklet_struct *t)
 474 {
 475         struct r8192_priv *priv = from_tasklet(priv, t,
 476                                                irq_prepare_beacon_tasklet);
 477         struct net_device *dev = priv->rtllib->dev;
 478         struct sk_buff *pskb = NULL, *pnewskb = NULL;
 479         struct cb_desc *tcb_desc = NULL;
 480         struct rtl8192_tx_ring *ring = NULL;
 481         struct tx_desc *pdesc = NULL;
 482
 483         ring = &priv->tx_ring[BEACON_QUEUE];
 484         pskb = __skb_dequeue(&ring->queue);
 485         kfree_skb(pskb);
 486
 487         pnewskb = rtllib_get_beacon(priv->rtllib);
 488         if (!pnewskb)
 489                 return;
 490
 491         tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
 492         tcb_desc->queue_index = BEACON_QUEUE;
 493         tcb_desc->data_rate = 2;
 494         tcb_desc->RATRIndex = 7;
 495         tcb_desc->tx_dis_rate_fallback = 1;
 496         tcb_desc->tx_use_drv_assinged_rate = 1;
 497         skb_push(pnewskb, priv->rtllib->tx_headroom);
 498
 499         pdesc = &ring->desc[0];
 500         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
 501         __skb_queue_tail(&ring->queue, pnewskb);
 502         pdesc->OWN = 1;
 503 }
 504
 505 static void _rtl92e_stop_beacon(struct net_device *dev)
 506 {
 507 }
 508
 509 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
 510 {
 511         struct r8192_priv *priv = rtllib_priv(dev);
 512         struct rtllib_network *net;
 513         u8 i = 0, basic_rate = 0;
 514
 515         net = &priv->rtllib->current_network;
 516
 517         for (i = 0; i < net->rates_len; i++) {
 518                 basic_rate = net->rates[i] & 0x7f;
 519                 switch (basic_rate) {
 520                 case MGN_1M:
 521                         *rate_config |= RRSR_1M;
 522                         break;
 523                 case MGN_2M:
 524                         *rate_config |= RRSR_2M;
 525                         break;
 526                 case MGN_5_5M:
 527                         *rate_config |= RRSR_5_5M;
 528                         break;
 529                 case MGN_11M:
 530                         *rate_config |= RRSR_11M;
 531                         break;
 532                 case MGN_6M:
 533                         *rate_config |= RRSR_6M;
 534                         break;
 535                 case MGN_9M:
 536                         *rate_config |= RRSR_9M;
 537                         break;
 538                 case MGN_12M:
 539                         *rate_config |= RRSR_12M;
 540                         break;
 541                 case MGN_18M:
 542                         *rate_config |= RRSR_18M;
 543                         break;
 544                 case MGN_24M:
 545                         *rate_config |= RRSR_24M;
 546                         break;
 547                 case MGN_36M:
 548                         *rate_config |= RRSR_36M;
 549                         break;
 550                 case MGN_48M:
 551                         *rate_config |= RRSR_48M;
 552                         break;
 553                 case MGN_54M:
 554                         *rate_config |= RRSR_54M;
 555                         break;
 556                 }
 557         }
 558
 559         for (i = 0; i < net->rates_ex_len; i++) {
 560                 basic_rate = net->rates_ex[i] & 0x7f;
 561                 switch (basic_rate) {
 562                 case MGN_1M:
 563                         *rate_config |= RRSR_1M;
 564                         break;
 565                 case MGN_2M:
 566                         *rate_config |= RRSR_2M;
 567                         break;
 568                 case MGN_5_5M:
 569                         *rate_config |= RRSR_5_5M;
 570                         break;
 571                 case MGN_11M:
 572                         *rate_config |= RRSR_11M;
 573                         break;
 574                 case MGN_6M:
 575                         *rate_config |= RRSR_6M;
 576                         break;
 577                 case MGN_9M:
 578                         *rate_config |= RRSR_9M;
 579                         break;
 580                 case MGN_12M:
 581                         *rate_config |= RRSR_12M;
 582                         break;
 583                 case MGN_18M:
 584                         *rate_config |= RRSR_18M;
 585                         break;
 586                 case MGN_24M:
 587                         *rate_config |= RRSR_24M;
 588                         break;
 589                 case MGN_36M:
 590                         *rate_config |= RRSR_36M;
 591                         break;
 592                 case MGN_48M:
 593                         *rate_config |= RRSR_48M;
 594                         break;
 595                 case MGN_54M:
 596                         *rate_config |= RRSR_54M;
 597                         break;
 598                 }
 599         }
 600 }
 601
 602 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
 603 {
 604         struct rtllib_device *ieee = priv->rtllib;
 605
 606         if (ieee->mode == WIRELESS_MODE_N_24G ||
 607             ieee->mode == WIRELESS_MODE_N_5G) {
 608                 memcpy(ieee->reg_dot11ht_oper_rate_set,
 609                        ieee->reg_ht_supp_rate_set, 16);
 610                 memcpy(ieee->reg_dot11tx_ht_oper_rate_set,
 611                        ieee->reg_ht_supp_rate_set, 16);
 612
 613         } else {
 614                 memset(ieee->reg_dot11ht_oper_rate_set, 0, 16);
 615         }
 616 }
 617
 618 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
 619 {
 620         struct r8192_priv *priv = rtllib_priv(dev);
 621         u8 ret = 0;
 622
 623         switch (priv->rf_chip) {
 624         case RF_8225:
 625         case RF_8256:
 626         case RF_6052:
 627         case RF_PSEUDO_11N:
 628                 ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
 629                 break;
 630         case RF_8258:
 631                 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
 632                 break;
 633         default:
 634                 ret = WIRELESS_MODE_B;
 635                 break;
 636         }
 637         return ret;
 638 }
 639
 640 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
 641 {
 642         struct r8192_priv *priv = rtllib_priv(dev);
 643         u8 support_mode = _rtl92e_get_supported_wireless_mode(dev);
 644
 645         if ((wireless_mode == WIRELESS_MODE_AUTO) ||
 646             ((wireless_mode & support_mode) == 0)) {
 647                 if (support_mode & WIRELESS_MODE_N_24G) {
 648                         wireless_mode = WIRELESS_MODE_N_24G;
 649                 } else if (support_mode & WIRELESS_MODE_N_5G) {
 650                         wireless_mode = WIRELESS_MODE_N_5G;
 651                 } else if ((support_mode & WIRELESS_MODE_A)) {
 652                         wireless_mode = WIRELESS_MODE_A;
 653                 } else if ((support_mode & WIRELESS_MODE_G)) {
 654                         wireless_mode = WIRELESS_MODE_G;
 655                 } else if ((support_mode & WIRELESS_MODE_B)) {
 656                         wireless_mode = WIRELESS_MODE_B;
 657                 } else {
 658                         netdev_info(dev,
 659                                     "%s(): Unsupported mode requested. Fallback to 802.11b\n",
 660                                     __func__);
 661                         wireless_mode = WIRELESS_MODE_B;
 662                 }
 663         }
 664
 665         if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
 666             (WIRELESS_MODE_G | WIRELESS_MODE_B))
 667                 wireless_mode = WIRELESS_MODE_G;
 668
 669         priv->rtllib->mode = wireless_mode;
 670
 671         if ((wireless_mode == WIRELESS_MODE_N_24G) ||
 672             (wireless_mode == WIRELESS_MODE_N_5G)) {
 673                 priv->rtllib->ht_info->enable_ht = 1;
 674         } else {
 675                 priv->rtllib->ht_info->enable_ht = 0;
 676         }
 677         _rtl92e_refresh_support_rate(priv);
 678 }
 679
 680 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
 681 {
 682         struct r8192_priv *priv = rtllib_priv(dev);
 683         struct rt_pwr_save_ctrl *psc = (struct rt_pwr_save_ctrl *)
 684                                         (&priv->rtllib->pwr_save_ctrl);
 685         bool init_status;
 686
 687         priv->bdisable_nic = false;
 688
 689         priv->up = 1;
 690         priv->rtllib->ieee_up = 1;
 691
 692         priv->up_first_time = 0;
 693         init_status = priv->ops->initialize_adapter(dev);
 694         if (!init_status) {
 695                 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
 696                 return -1;
 697         }
 698
 699         RT_CLEAR_PS_LEVEL(psc, RT_RF_OFF_LEVL_HALT_NIC);
 700
 701         if (priv->polling_timer_on == 0)
 702                 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
 703
 704         if (priv->rtllib->state != RTLLIB_LINKED)
 705                 rtllib_softmac_start_protocol(priv->rtllib, 0);
 706         rtllib_reset_queue(priv->rtllib);
 707         _rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
 708
 709         if (!netif_queue_stopped(dev))
 710                 netif_start_queue(dev);
 711         else
 712                 netif_wake_queue(dev);
 713
 714         return 0;
 715 }
 716
 717 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
 718 {
 719         struct r8192_priv *priv = rtllib_priv(dev);
 720         unsigned long flags = 0;
 721         u8 rf_in_progress_timeout = 0;
 722
 723         if (priv->up == 0)
 724                 return -1;
 725
 726         if (priv->rtllib->rtllib_ips_leave)
 727                 priv->rtllib->rtllib_ips_leave(dev);
 728
 729         if (priv->rtllib->state == RTLLIB_LINKED)
 730                 rtl92e_leisure_ps_leave(dev);
 731
 732         priv->up = 0;
 733         priv->rtllib->ieee_up = 0;
 734         priv->bfirst_after_down = true;
 735         if (!netif_queue_stopped(dev))
 736                 netif_stop_queue(dev);
 737
 738         priv->rtllib->wpa_ie_len = 0;
 739         kfree(priv->rtllib->wpa_ie);
 740         priv->rtllib->wpa_ie = NULL;
 741         rtl92e_cam_reset(dev);
 742         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 743         rtl92e_irq_disable(dev);
 744
 745         del_timer_sync(&priv->watch_dog_timer);
 746         _rtl92e_cancel_deferred_work(priv);
 747         cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
 748
 749         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
 750         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 751         while (priv->rf_change_in_progress) {
 752                 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 753                 if (rf_in_progress_timeout > 100) {
 754                         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 755                         break;
 756                 }
 757                 mdelay(1);
 758                 rf_in_progress_timeout++;
 759                 spin_lock_irqsave(&priv->rf_ps_lock, flags);
 760         }
 761         priv->rf_change_in_progress = true;
 762         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 763         priv->ops->stop_adapter(dev, false);
 764         spin_lock_irqsave(&priv->rf_ps_lock, flags);
 765         priv->rf_change_in_progress = false;
 766         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
 767         udelay(100);
 768         memset(&priv->rtllib->current_network, 0,
 769                offsetof(struct rtllib_network, list));
 770
 771         return 0;
 772 }
 773
 774 static void _rtl92e_init_priv_handler(struct net_device *dev)
 775 {
 776         struct r8192_priv *priv = rtllib_priv(dev);
 777
 778         priv->rtllib->softmac_hard_start_xmit   = _rtl92e_hard_start_xmit;
 779         priv->rtllib->set_chan                  = _rtl92e_set_chan;
 780         priv->rtllib->link_change               = priv->ops->link_change;
 781         priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
 782         priv->rtllib->check_nic_enough_desc     = _rtl92e_check_nic_enough_desc;
 783         priv->rtllib->handle_assoc_response     = _rtl92e_handle_assoc_response;
 784         priv->rtllib->handle_beacon             = _rtl92e_handle_beacon;
 785         priv->rtllib->SetWirelessMode           = rtl92e_set_wireless_mode;
 786         priv->rtllib->LeisurePSLeave            = rtl92e_leisure_ps_leave;
 787         priv->rtllib->SetBWModeHandler          = rtl92e_set_bw_mode;
 788         priv->rf_set_chan                       = rtl92e_set_channel;
 789
 790         priv->rtllib->start_send_beacons = rtl92e_start_beacon;
 791         priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
 792
 793         priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
 794         priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
 795         priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
 796
 797         priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
 798         priv->rtllib->GetHalfNmodeSupportByAPsHandler =
 799                                                 rtl92e_is_halfn_supported_by_ap;
 800
 801         priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
 802         priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
 803         priv->rtllib->SetFwCmdHandler = NULL;
 804         priv->rtllib->InitialGainHandler = rtl92e_init_gain;
 805         priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
 806         priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
 807
 808         priv->rtllib->LedControlHandler = NULL;
 809         priv->rtllib->UpdateBeaconInterruptHandler = NULL;
 810
 811         priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
 812 }
 813
 814 static void _rtl92e_init_priv_constant(struct net_device *dev)
 815 {
 816         struct r8192_priv *priv = rtllib_priv(dev);
 817         struct rt_pwr_save_ctrl *psc = (struct rt_pwr_save_ctrl *)
 818                                         &priv->rtllib->pwr_save_ctrl;
 819
 820         psc->reg_max_lps_awake_intvl = 5;
 821 }
 822
 823 static void _rtl92e_init_priv_variable(struct net_device *dev)
 824 {
 825         struct r8192_priv *priv = rtllib_priv(dev);
 826         u8 i;
 827
 828         priv->dot11_current_preamble_mode = PREAMBLE_AUTO;
 829         priv->rtllib->status = 0;
 830         priv->polling_timer_on = 0;
 831         priv->up_first_time = 1;
 832         priv->blinked_ingpio = false;
 833         priv->being_init_adapter = false;
 834         priv->bdisable_nic = false;
 835         priv->txringcount = 64;
 836         priv->rxbuffersize = 9100;
 837         priv->rxringcount = MAX_RX_COUNT;
 838         priv->irq_enabled = 0;
 839         priv->chan = 1;
 840         priv->reg_chnl_plan = 0xf;
 841         priv->rtllib->mode = WIRELESS_MODE_AUTO;
 842         priv->rtllib->iw_mode = IW_MODE_INFRA;
 843         priv->rtllib->net_promiscuous_md = false;
 844         priv->rtllib->intel_promiscuous_md_info.promiscuous_on = false;
 845         priv->rtllib->intel_promiscuous_md_info.fltr_src_sta_frame =
 846                                                                  false;
 847         priv->rtllib->ieee_up = 0;
 848         priv->retry_rts = DEFAULT_RETRY_RTS;
 849         priv->retry_data = DEFAULT_RETRY_DATA;
 850         priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
 851         priv->rtllib->rate = 110;
 852         priv->rtllib->short_slot = 1;
 853         priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
 854         priv->bcck_in_ch14 = false;
 855         priv->bfsync_processing  = false;
 856         priv->cck_present_attn = 0;
 857         priv->rfa_txpowertrackingindex = 0;
 858         priv->rfc_txpowertrackingindex = 0;
 859         priv->cck_pwr_enl = 6;
 860         priv->rst_progress = RESET_TYPE_NORESET;
 861         priv->force_reset = false;
 862         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
 863         priv->rx_ctr = 0;
 864         priv->rtllib->wx_set_enc = 0;
 865         priv->hw_radio_off = false;
 866         priv->rtllib->rf_off_reason = 0;
 867         priv->rf_change_in_progress = false;
 868         priv->hw_rf_off_action = 0;
 869         priv->set_rf_pwr_state_in_progress = false;
 870         priv->rtllib->pwr_save_ctrl.bLeisurePs = true;
 871         priv->rtllib->LPSDelayCnt = 0;
 872         priv->rtllib->sta_sleep = LPS_IS_WAKE;
 873         priv->rtllib->rf_power_state = rf_on;
 874
 875         priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
 876         priv->rtllib->iw_mode = IW_MODE_INFRA;
 877         priv->rtllib->active_scan = 1;
 878         priv->rtllib->be_scan_inprogress = false;
 879         priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
 880                                    RTLLIB_OFDM_MODULATION;
 881         priv->rtllib->host_encrypt = 1;
 882         priv->rtllib->host_decrypt = 1;
 883
 884         priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
 885
 886         priv->card_type = PCI;
 887
 888         priv->fw_info = vzalloc(sizeof(struct rt_firmware));
 889         if (!priv->fw_info)
 890                 netdev_err(dev,
 891                            "rtl8192e: Unable to allocate space for firmware\n");
 892
 893         skb_queue_head_init(&priv->skb_queue);
 894
 895         for (i = 0; i < MAX_QUEUE_SIZE; i++)
 896                 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
 897 }
 898
 899 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
 900 {
 901         spin_lock_init(&priv->tx_lock);
 902         spin_lock_init(&priv->irq_th_lock);
 903         spin_lock_init(&priv->rf_ps_lock);
 904         spin_lock_init(&priv->ps_lock);
 905         mutex_init(&priv->wx_mutex);
 906         mutex_init(&priv->rf_mutex);
 907         mutex_init(&priv->mutex);
 908 }
 909
 910 static void _rtl92e_init_priv_task(struct net_device *dev)
 911 {
 912         struct r8192_priv *priv = rtllib_priv(dev);
 913
 914         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
 915         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
 916                       dev);
 917         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
 918                               (void *)_rtl92e_watchdog_wq_cb, dev);
 919         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
 920                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
 921         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
 922                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
 923         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
 924                               (void *)_rtl92e_update_beacon, dev);
 925         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
 926         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
 927                               (void *)rtl92e_hw_wakeup_wq, dev);
 928         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
 929                               (void *)rtl92e_hw_sleep_wq, dev);
 930         tasklet_setup(&priv->irq_rx_tasklet, _rtl92e_irq_rx_tasklet);
 931         tasklet_setup(&priv->irq_tx_tasklet, _rtl92e_irq_tx_tasklet);
 932         tasklet_setup(&priv->irq_prepare_beacon_tasklet,
 933                       _rtl92e_prepare_beacon);
 934 }
 935
 936 static short _rtl92e_get_channel_map(struct net_device *dev)
 937 {
 938         int i;
 939
 940         struct r8192_priv *priv = rtllib_priv(dev);
 941
 942         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
 943                                                 (priv->rf_chip != RF_6052)) {
 944                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
 945                            __func__);
 946                 return -1;
 947         }
 948
 949         if (priv->chnl_plan >= COUNTRY_CODE_MAX) {
 950                 netdev_info(dev,
 951                             "rtl819x_init:Error channel plan! Set to default.\n");
 952                 priv->chnl_plan = COUNTRY_CODE_FCC;
 953         }
 954         dot11d_init(priv->rtllib);
 955         dot11d_channel_map(priv->chnl_plan, priv->rtllib);
 956         for (i = 1; i <= 11; i++)
 957                 (priv->rtllib->active_channel_map)[i] = 1;
 958         (priv->rtllib->active_channel_map)[12] = 2;
 959         (priv->rtllib->active_channel_map)[13] = 2;
 960
 961         return 0;
 962 }
 963
 964 static short _rtl92e_init(struct net_device *dev)
 965 {
 966         struct r8192_priv *priv = rtllib_priv(dev);
 967
 968         memset(&priv->stats, 0, sizeof(struct rt_stats));
 969
 970         _rtl92e_init_priv_handler(dev);
 971         _rtl92e_init_priv_constant(dev);
 972         _rtl92e_init_priv_variable(dev);
 973         _rtl92e_init_priv_lock(priv);
 974         _rtl92e_init_priv_task(dev);
 975         rtl92e_get_eeprom_size(dev);
 976         rtl92e_init_variables(dev);
 977         _rtl92e_get_channel_map(dev);
 978
 979         rtl92e_dm_init(dev);
 980
 981         timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
 982
 983         timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
 984                     0);
 985
 986         rtl92e_irq_disable(dev);
 987         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
 988                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
 989                 return -1;
 990         }
 991
 992         priv->irq = dev->irq;
 993
 994         if (_rtl92e_pci_initdescring(dev) != 0) {
 995                 netdev_err(dev, "Endopoints initialization failed");
 996                 free_irq(dev->irq, dev);
 997                 return -1;
 998         }
 999
1000         return 0;
1001 }
1002
1003 /***************************************************************************
1004  * -------------------------------WATCHDOG STUFF---------------------------
1005  **************************************************************************/
1006 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1007 {
1008         int i = 0;
1009         struct r8192_priv *priv = rtllib_priv(dev);
1010
1011         for (i = 0; i <= MGNT_QUEUE; i++) {
1012                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1013                         continue;
1014                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1015                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1016                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1017                         return 0;
1018                 }
1019         }
1020         return 1;
1021 }
1022
1023 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1024 {
1025         struct r8192_priv *priv = rtllib_priv(dev);
1026         u8      QueueID;
1027         bool    bCheckFwTxCnt = false;
1028         struct rtl8192_tx_ring  *ring = NULL;
1029         struct sk_buff *skb = NULL;
1030         struct cb_desc *tcb_desc = NULL;
1031         unsigned long flags = 0;
1032
1033         switch (priv->rtllib->ps) {
1034         case RTLLIB_PS_DISABLED:
1035                 break;
1036         case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1037                 break;
1038         default:
1039                 break;
1040         }
1041         spin_lock_irqsave(&priv->irq_th_lock, flags);
1042         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1043                 if (QueueID == TXCMD_QUEUE)
1044                         continue;
1045
1046                 if (QueueID == BEACON_QUEUE)
1047                         continue;
1048
1049                 ring = &priv->tx_ring[QueueID];
1050
1051                 if (skb_queue_len(&ring->queue) == 0) {
1052                         continue;
1053                 } else {
1054                         skb = __skb_peek(&ring->queue);
1055                         tcb_desc = (struct cb_desc *)(skb->cb +
1056                                     MAX_DEV_ADDR_SIZE);
1057                         tcb_desc->nStuckCount++;
1058                         bCheckFwTxCnt = true;
1059                         if (tcb_desc->nStuckCount > 1)
1060                                 netdev_info(dev,
1061                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1062                                             __func__, QueueID,
1063                                             tcb_desc->nStuckCount);
1064                 }
1065         }
1066         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1067
1068         if (bCheckFwTxCnt) {
1069                 if (priv->ops->tx_check_stuck_handler(dev))
1070                         return RESET_TYPE_SILENT;
1071         }
1072
1073         return RESET_TYPE_NORESET;
1074 }
1075
1076 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1077 {
1078         struct r8192_priv *priv = rtllib_priv(dev);
1079
1080         if (priv->ops->rx_check_stuck_handler(dev))
1081                 return RESET_TYPE_SILENT;
1082
1083         return RESET_TYPE_NORESET;
1084 }
1085
1086 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1087 {
1088         struct r8192_priv *priv = rtllib_priv(dev);
1089         enum reset_type TxResetType = RESET_TYPE_NORESET;
1090         enum reset_type RxResetType = RESET_TYPE_NORESET;
1091         enum rt_rf_power_state rfState;
1092
1093         rfState = priv->rtllib->rf_power_state;
1094
1095         if (rfState == rf_on)
1096                 TxResetType = _rtl92e_tx_check_stuck(dev);
1097
1098         if (rfState == rf_on &&
1099             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1100             (priv->rtllib->state == RTLLIB_LINKED))
1101                 RxResetType = _rtl92e_rx_check_stuck(dev);
1102
1103         if (TxResetType == RESET_TYPE_NORMAL ||
1104             RxResetType == RESET_TYPE_NORMAL) {
1105                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1106                             __func__, TxResetType, RxResetType);
1107                 return RESET_TYPE_NORMAL;
1108         } else if (TxResetType == RESET_TYPE_SILENT ||
1109                    RxResetType == RESET_TYPE_SILENT) {
1110                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1111                             __func__, TxResetType, RxResetType);
1112                 return RESET_TYPE_SILENT;
1113         } else {
1114                 return RESET_TYPE_NORESET;
1115         }
1116 }
1117
1118 static void _rtl92e_if_silent_reset(struct net_device *dev)
1119 {
1120         struct r8192_priv *priv = rtllib_priv(dev);
1121         u8      reset_times = 0;
1122         int reset_status = 0;
1123         struct rtllib_device *ieee = priv->rtllib;
1124         unsigned long flag;
1125
1126         if (priv->rst_progress == RESET_TYPE_NORESET) {
1127                 priv->rst_progress = RESET_TYPE_SILENT;
1128
1129                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1130                 if (priv->rf_change_in_progress) {
1131                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1132                         goto END;
1133                 }
1134                 priv->rf_change_in_progress = true;
1135                 priv->reset_in_progress = true;
1136                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1137
1138 RESET_START:
1139
1140                 mutex_lock(&priv->wx_mutex);
1141
1142                 if (priv->rtllib->state == RTLLIB_LINKED)
1143                         rtl92e_leisure_ps_leave(dev);
1144
1145                 if (priv->up) {
1146                         netdev_info(dev, "%s():the driver is not up.\n",
1147                                     __func__);
1148                         mutex_unlock(&priv->wx_mutex);
1149                         return;
1150                 }
1151                 priv->up = 0;
1152
1153                 mdelay(1000);
1154
1155                 if (!netif_queue_stopped(dev))
1156                         netif_stop_queue(dev);
1157
1158                 rtl92e_irq_disable(dev);
1159                 del_timer_sync(&priv->watch_dog_timer);
1160                 _rtl92e_cancel_deferred_work(priv);
1161                 rtl92e_dm_deinit(dev);
1162                 rtllib_stop_scan_syncro(ieee);
1163
1164                 if (ieee->state == RTLLIB_LINKED) {
1165                         mutex_lock(&ieee->wx_mutex);
1166                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1167                         rtllib_stop_send_beacons(priv->rtllib);
1168                         del_timer_sync(&ieee->associate_timer);
1169                         cancel_delayed_work(&ieee->associate_retry_wq);
1170                         rtllib_stop_scan(ieee);
1171                         netif_carrier_off(dev);
1172                         mutex_unlock(&ieee->wx_mutex);
1173                 } else {
1174                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1175                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1176                 }
1177
1178                 rtl92e_dm_backup_state(dev);
1179
1180                 mutex_unlock(&priv->wx_mutex);
1181                 reset_status = _rtl92e_up(dev, true);
1182
1183                 if (reset_status == -1) {
1184                         if (reset_times < 3) {
1185                                 reset_times++;
1186                                 goto RESET_START;
1187                         } else {
1188                                 netdev_warn(dev, "%s(): Reset Failed\n",
1189                                             __func__);
1190                         }
1191                 }
1192
1193                 ieee->is_silent_reset = 1;
1194
1195                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1196                 priv->rf_change_in_progress = false;
1197                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1198
1199                 rtl92e_enable_hw_security_config(dev);
1200
1201                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1202                     IW_MODE_INFRA) {
1203                         ieee->set_chan(ieee->dev,
1204                                        ieee->current_network.channel);
1205
1206                         schedule_work(&ieee->associate_complete_wq);
1207
1208                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1209                            IW_MODE_ADHOC) {
1210                         ieee->set_chan(ieee->dev,
1211                                        ieee->current_network.channel);
1212                         ieee->link_change(ieee->dev);
1213
1214                         notify_wx_assoc_event(ieee);
1215
1216                         rtllib_start_send_beacons(ieee);
1217
1218                         netif_carrier_on(ieee->dev);
1219                 }
1220
1221                 rtl92e_cam_restore(dev);
1222                 rtl92e_dm_restore_state(dev);
1223 END:
1224                 priv->rst_progress = RESET_TYPE_NORESET;
1225                 priv->reset_count++;
1226                 priv->reset_in_progress = false;
1227
1228                 rtl92e_writeb(dev, UFWP, 1);
1229         }
1230 }
1231
1232 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1233                                     u32 *TotalRxDataNum)
1234 {
1235         u16     SlotIndex;
1236         u8      i;
1237
1238         *TotalRxBcnNum = 0;
1239         *TotalRxDataNum = 0;
1240
1241         SlotIndex = (priv->rtllib->link_detect_info.SlotIndex++) %
1242                         (priv->rtllib->link_detect_info.SlotNum);
1243         priv->rtllib->link_detect_info.RxBcnNum[SlotIndex] =
1244                         priv->rtllib->link_detect_info.NumRecvBcnInPeriod;
1245         priv->rtllib->link_detect_info.RxDataNum[SlotIndex] =
1246                         priv->rtllib->link_detect_info.NumRecvDataInPeriod;
1247         for (i = 0; i < priv->rtllib->link_detect_info.SlotNum; i++) {
1248                 *TotalRxBcnNum += priv->rtllib->link_detect_info.RxBcnNum[i];
1249                 *TotalRxDataNum += priv->rtllib->link_detect_info.RxDataNum[i];
1250         }
1251 }
1252
1253 static void _rtl92e_watchdog_wq_cb(void *data)
1254 {
1255         struct r8192_priv *priv = container_of_dwork_rsl(data,
1256                                   struct r8192_priv, watch_dog_wq);
1257         struct net_device *dev = priv->rtllib->dev;
1258         struct rtllib_device *ieee = priv->rtllib;
1259         enum reset_type ResetType = RESET_TYPE_NORESET;
1260         static u8 check_reset_cnt;
1261         unsigned long flags;
1262         struct rt_pwr_save_ctrl *psc = (struct rt_pwr_save_ctrl *)
1263                                         (&priv->rtllib->pwr_save_ctrl);
1264         bool bBusyTraffic = false;
1265         bool    bHigherBusyTraffic = false;
1266         bool    bHigherBusyRxTraffic = false;
1267         bool bEnterPS = false;
1268
1269         if (!priv->up || priv->hw_radio_off)
1270                 return;
1271
1272         if (priv->rtllib->state >= RTLLIB_LINKED) {
1273                 if (priv->rtllib->CntAfterLink < 2)
1274                         priv->rtllib->CntAfterLink++;
1275         } else {
1276                 priv->rtllib->CntAfterLink = 0;
1277         }
1278
1279         rtl92e_dm_watchdog(dev);
1280
1281         if (!rtllib_act_scanning(priv->rtllib, false)) {
1282                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1283                      RTLLIB_NOLINK) &&
1284                      (ieee->rf_power_state == rf_on) && !ieee->is_set_key &&
1285                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1286                         if ((ieee->pwr_save_ctrl.ReturnPoint ==
1287                              IPS_CALLBACK_NONE) &&
1288                              (!ieee->net_promiscuous_md)) {
1289                                 rtl92e_ips_enter(dev);
1290                         }
1291                 }
1292         }
1293         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1294              IW_MODE_INFRA) && (!ieee->net_promiscuous_md)) {
1295                 if (ieee->link_detect_info.NumRxOkInPeriod > 100 ||
1296                 ieee->link_detect_info.NumTxOkInPeriod > 100)
1297                         bBusyTraffic = true;
1298
1299                 if (ieee->link_detect_info.NumRxOkInPeriod > 4000 ||
1300                     ieee->link_detect_info.NumTxOkInPeriod > 4000) {
1301                         bHigherBusyTraffic = true;
1302                         if (ieee->link_detect_info.NumRxOkInPeriod > 5000)
1303                                 bHigherBusyRxTraffic = true;
1304                         else
1305                                 bHigherBusyRxTraffic = false;
1306                 }
1307
1308                 if (((ieee->link_detect_info.NumRxUnicastOkInPeriod +
1309                     ieee->link_detect_info.NumTxOkInPeriod) > 8) ||
1310                     (ieee->link_detect_info.NumRxUnicastOkInPeriod > 2))
1311                         bEnterPS = false;
1312                 else
1313                         bEnterPS = true;
1314
1315                 if (ieee->current_network.beacon_interval < 95)
1316                         bEnterPS = false;
1317
1318                 if (bEnterPS)
1319                         rtl92e_leisure_ps_enter(dev);
1320                 else
1321                         rtl92e_leisure_ps_leave(dev);
1322
1323         } else {
1324                 rtl92e_leisure_ps_leave(dev);
1325         }
1326
1327         ieee->link_detect_info.NumRxOkInPeriod = 0;
1328         ieee->link_detect_info.NumTxOkInPeriod = 0;
1329         ieee->link_detect_info.NumRxUnicastOkInPeriod = 0;
1330         ieee->link_detect_info.bBusyTraffic = bBusyTraffic;
1331
1332         ieee->link_detect_info.bHigherBusyTraffic = bHigherBusyTraffic;
1333         ieee->link_detect_info.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1334
1335         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1336                 u32     TotalRxBcnNum = 0;
1337                 u32     TotalRxDataNum = 0;
1338
1339                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1340
1341                 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1342                         priv->check_roaming_cnt++;
1343                 else
1344                         priv->check_roaming_cnt = 0;
1345
1346                 if (priv->check_roaming_cnt > 0) {
1347                         if (ieee->rf_power_state == rf_off)
1348                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1349
1350                         netdev_info(dev,
1351                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1352                                     __func__, priv->chan);
1353
1354                         ieee->state = RTLLIB_ASSOCIATING;
1355
1356                         RemovePeerTS(priv->rtllib,
1357                                      priv->rtllib->current_network.bssid);
1358                         ieee->is_roaming = true;
1359                         ieee->is_set_key = false;
1360                         ieee->link_change(dev);
1361                         if (ieee->LedControlHandler)
1362                                 ieee->LedControlHandler(ieee->dev,
1363                                                         LED_CTL_START_TO_LINK);
1364
1365                         notify_wx_assoc_event(ieee);
1366
1367                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1368                              (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1369                                 schedule_delayed_work(
1370                                         &ieee->associate_procedure_wq, 0);
1371
1372                         priv->check_roaming_cnt = 0;
1373                 }
1374                 ieee->link_detect_info.NumRecvBcnInPeriod = 0;
1375                 ieee->link_detect_info.NumRecvDataInPeriod = 0;
1376         }
1377
1378         spin_lock_irqsave(&priv->tx_lock, flags);
1379         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1380             (!priv->rf_change_in_progress) && (!psc->bSwRfProcessing)) {
1381                 ResetType = _rtl92e_if_check_reset(dev);
1382                 check_reset_cnt = 3;
1383         }
1384         spin_unlock_irqrestore(&priv->tx_lock, flags);
1385
1386         if (ResetType == RESET_TYPE_NORMAL) {
1387                 priv->rst_progress = RESET_TYPE_NORMAL;
1388                 return;
1389         }
1390
1391         if ((priv->force_reset || ResetType == RESET_TYPE_SILENT))
1392                 _rtl92e_if_silent_reset(dev);
1393         priv->force_reset = false;
1394         priv->reset_in_progress = false;
1395 }
1396
1397 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1398 {
1399         struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1400
1401         schedule_delayed_work(&priv->watch_dog_wq, 0);
1402         mod_timer(&priv->watch_dog_timer, jiffies +
1403                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1404 }
1405
1406 /****************************************************************************
1407  * ---------------------------- NIC TX/RX STUFF---------------------------
1408  ****************************************************************************/
1409 void rtl92e_rx_enable(struct net_device *dev)
1410 {
1411         struct r8192_priv *priv = rtllib_priv(dev);
1412
1413         priv->ops->rx_enable(dev);
1414 }
1415
1416 void rtl92e_tx_enable(struct net_device *dev)
1417 {
1418         struct r8192_priv *priv = rtllib_priv(dev);
1419
1420         priv->ops->tx_enable(dev);
1421
1422         rtllib_reset_queue(priv->rtllib);
1423 }
1424
1425 static void _rtl92e_free_rx_ring(struct net_device *dev)
1426 {
1427         struct r8192_priv *priv = rtllib_priv(dev);
1428         int i, rx_queue_idx;
1429
1430         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1431              rx_queue_idx++) {
1432                 for (i = 0; i < priv->rxringcount; i++) {
1433                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1434
1435                         if (!skb)
1436                                 continue;
1437
1438                         dma_unmap_single(&priv->pdev->dev,
1439                                          *((dma_addr_t *)skb->cb),
1440                                          priv->rxbuffersize, DMA_FROM_DEVICE);
1441                         kfree_skb(skb);
1442                 }
1443
1444                 dma_free_coherent(&priv->pdev->dev,
1445                                   sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1446                                   priv->rx_ring[rx_queue_idx],
1447                                   priv->rx_ring_dma[rx_queue_idx]);
1448                 priv->rx_ring[rx_queue_idx] = NULL;
1449         }
1450 }
1451
1452 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1453 {
1454         struct r8192_priv *priv = rtllib_priv(dev);
1455         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1456
1457         while (skb_queue_len(&ring->queue)) {
1458                 struct tx_desc *entry = &ring->desc[ring->idx];
1459                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1460
1461                 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1462                                  skb->len, DMA_TO_DEVICE);
1463                 kfree_skb(skb);
1464                 ring->idx = (ring->idx + 1) % ring->entries;
1465         }
1466
1467         dma_free_coherent(&priv->pdev->dev,
1468                           sizeof(*ring->desc) * ring->entries, ring->desc,
1469                           ring->dma);
1470         ring->desc = NULL;
1471 }
1472
1473 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1474                                    int rate)
1475 {
1476         struct r8192_priv *priv = rtllib_priv(dev);
1477         int ret;
1478         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1479                                     MAX_DEV_ADDR_SIZE);
1480         u8 queue_index = tcb_desc->queue_index;
1481
1482         if ((priv->rtllib->rf_power_state == rf_off) || !priv->up ||
1483              priv->reset_in_progress) {
1484                 kfree_skb(skb);
1485                 return;
1486         }
1487
1488         if (queue_index == TXCMD_QUEUE)
1489                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1490                             __func__);
1491
1492         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1493         skb_push(skb, priv->rtllib->tx_headroom);
1494         ret = _rtl92e_tx(dev, skb);
1495
1496         if (queue_index != MGNT_QUEUE) {
1497                 priv->rtllib->stats.tx_bytes += (skb->len -
1498                                                  priv->rtllib->tx_headroom);
1499                 priv->rtllib->stats.tx_packets++;
1500         }
1501
1502         if (ret != 0)
1503                 kfree_skb(skb);
1504 }
1505
1506 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1507 {
1508         struct r8192_priv *priv = rtllib_priv(dev);
1509         int ret;
1510         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1511                                     MAX_DEV_ADDR_SIZE);
1512         u8 queue_index = tcb_desc->queue_index;
1513
1514         if (queue_index != TXCMD_QUEUE) {
1515                 if ((priv->rtllib->rf_power_state == rf_off) ||
1516                      !priv->up || priv->reset_in_progress) {
1517                         kfree_skb(skb);
1518                         return 0;
1519                 }
1520         }
1521
1522         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1523         if (queue_index == TXCMD_QUEUE) {
1524                 _rtl92e_tx_cmd(dev, skb);
1525                 return 0;
1526         }
1527
1528         tcb_desc->RATRIndex = 7;
1529         tcb_desc->tx_dis_rate_fallback = 1;
1530         tcb_desc->tx_use_drv_assinged_rate = 1;
1531         tcb_desc->bTxEnableFwCalcDur = 1;
1532         skb_push(skb, priv->rtllib->tx_headroom);
1533         ret = _rtl92e_tx(dev, skb);
1534         if (ret != 0)
1535                 kfree_skb(skb);
1536         return ret;
1537 }
1538
1539 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1540 {
1541         struct r8192_priv *priv = rtllib_priv(dev);
1542
1543         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1544
1545         while (skb_queue_len(&ring->queue)) {
1546                 struct tx_desc *entry = &ring->desc[ring->idx];
1547                 struct sk_buff *skb;
1548
1549                 if (prio != BEACON_QUEUE) {
1550                         if (entry->OWN)
1551                                 return;
1552                         ring->idx = (ring->idx + 1) % ring->entries;
1553                 }
1554
1555                 skb = __skb_dequeue(&ring->queue);
1556                 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1557                                  skb->len, DMA_TO_DEVICE);
1558
1559                 kfree_skb(skb);
1560         }
1561         if (prio != BEACON_QUEUE)
1562                 tasklet_schedule(&priv->irq_tx_tasklet);
1563 }
1564
1565 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1566 {
1567         struct r8192_priv *priv = rtllib_priv(dev);
1568         struct rtl8192_tx_ring *ring;
1569         struct tx_desc_cmd *entry;
1570         unsigned int idx;
1571         struct cb_desc *tcb_desc;
1572         unsigned long flags;
1573
1574         spin_lock_irqsave(&priv->irq_th_lock, flags);
1575         ring = &priv->tx_ring[TXCMD_QUEUE];
1576
1577         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1578         entry = (struct tx_desc_cmd *)&ring->desc[idx];
1579
1580         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1581
1582         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1583
1584         __skb_queue_tail(&ring->queue, skb);
1585         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1586 }
1587
1588 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1589 {
1590         struct r8192_priv *priv = rtllib_priv(dev);
1591         struct rtl8192_tx_ring  *ring;
1592         unsigned long flags;
1593         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1594                                     MAX_DEV_ADDR_SIZE);
1595         struct tx_desc *pdesc = NULL;
1596         struct rtllib_hdr_1addr *header = NULL;
1597         u16 fc = 0, type = 0;
1598         u8 *pda_addr = NULL;
1599         int   idx;
1600         u32 fwinfo_size = 0;
1601
1602         if (priv->bdisable_nic) {
1603                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1604                             __func__);
1605                 return skb->len;
1606         }
1607
1608         priv->rtllib->bAwakePktSent = true;
1609
1610         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1611
1612         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1613         fc = le16_to_cpu(header->frame_ctl);
1614         type = WLAN_FC_GET_TYPE(fc);
1615         pda_addr = header->addr1;
1616
1617         if (!is_broadcast_ether_addr(pda_addr) && !is_multicast_ether_addr(pda_addr))
1618                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1619
1620         spin_lock_irqsave(&priv->irq_th_lock, flags);
1621         ring = &priv->tx_ring[tcb_desc->queue_index];
1622         if (tcb_desc->queue_index != BEACON_QUEUE)
1623                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1624         else
1625                 idx = 0;
1626
1627         pdesc = &ring->desc[idx];
1628         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1629                 netdev_warn(dev,
1630                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1631                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1632                             skb_queue_len(&ring->queue));
1633                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1634                 return skb->len;
1635         }
1636
1637         if (type == RTLLIB_FTYPE_DATA) {
1638                 if (priv->rtllib->LedControlHandler)
1639                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1640         }
1641         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1642         __skb_queue_tail(&ring->queue, skb);
1643         pdesc->OWN = 1;
1644         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1645         netif_trans_update(dev);
1646
1647         rtl92e_writew(dev, TP_POLL, 0x01 << tcb_desc->queue_index);
1648         return 0;
1649 }
1650
1651 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1652 {
1653         struct r8192_priv *priv = rtllib_priv(dev);
1654         struct rx_desc *entry = NULL;
1655         int i, rx_queue_idx;
1656
1657         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1658                 priv->rx_ring[rx_queue_idx] = dma_alloc_coherent(&priv->pdev->dev,
1659                                                                  sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1660                                                                  &priv->rx_ring_dma[rx_queue_idx],
1661                                                                  GFP_ATOMIC);
1662                 if (!priv->rx_ring[rx_queue_idx] ||
1663                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1664                         netdev_warn(dev, "Cannot allocate RX ring\n");
1665                         return -ENOMEM;
1666                 }
1667
1668                 priv->rx_idx[rx_queue_idx] = 0;
1669
1670                 for (i = 0; i < priv->rxringcount; i++) {
1671                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1672                         dma_addr_t *mapping;
1673
1674                         entry = &priv->rx_ring[rx_queue_idx][i];
1675                         if (!skb)
1676                                 return 0;
1677                         skb->dev = dev;
1678                         priv->rx_buf[rx_queue_idx][i] = skb;
1679                         mapping = (dma_addr_t *)skb->cb;
1680                         *mapping = dma_map_single(&priv->pdev->dev,
1681                                                   skb_tail_pointer_rsl(skb),
1682                                                   priv->rxbuffersize, DMA_FROM_DEVICE);
1683                         if (dma_mapping_error(&priv->pdev->dev, *mapping)) {
1684                                 dev_kfree_skb_any(skb);
1685                                 return -1;
1686                         }
1687                         entry->BufferAddress = *mapping;
1688
1689                         entry->Length = priv->rxbuffersize;
1690                         entry->OWN = 1;
1691                 }
1692
1693                 if (entry)
1694                         entry->EOR = 1;
1695         }
1696         return 0;
1697 }
1698
1699 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1700                                  unsigned int entries)
1701 {
1702         struct r8192_priv *priv = rtllib_priv(dev);
1703         struct tx_desc *ring;
1704         dma_addr_t dma;
1705         int i;
1706
1707         ring = dma_alloc_coherent(&priv->pdev->dev, sizeof(*ring) * entries,
1708                                   &dma, GFP_ATOMIC);
1709         if (!ring || (unsigned long)ring & 0xFF) {
1710                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1711                 return -ENOMEM;
1712         }
1713
1714         priv->tx_ring[prio].desc = ring;
1715         priv->tx_ring[prio].dma = dma;
1716         priv->tx_ring[prio].idx = 0;
1717         priv->tx_ring[prio].entries = entries;
1718         skb_queue_head_init(&priv->tx_ring[prio].queue);
1719
1720         for (i = 0; i < entries; i++)
1721                 ring[i].NextDescAddress =
1722                         (u32)dma + ((i + 1) % entries) *
1723                         sizeof(*ring);
1724
1725         return 0;
1726 }
1727
1728 static short _rtl92e_pci_initdescring(struct net_device *dev)
1729 {
1730         u32 ret;
1731         int i;
1732         struct r8192_priv *priv = rtllib_priv(dev);
1733
1734         ret = _rtl92e_alloc_rx_ring(dev);
1735         if (ret)
1736                 return ret;
1737
1738         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1739                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1740                 if (ret)
1741                         goto err_free_rings;
1742         }
1743
1744         return 0;
1745
1746 err_free_rings:
1747         _rtl92e_free_rx_ring(dev);
1748         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1749                 if (priv->tx_ring[i].desc)
1750                         _rtl92e_free_tx_ring(dev, i);
1751         return 1;
1752 }
1753
1754 void rtl92e_reset_desc_ring(struct net_device *dev)
1755 {
1756         struct r8192_priv *priv = rtllib_priv(dev);
1757         int i, rx_queue_idx;
1758         unsigned long flags = 0;
1759
1760         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1761                 if (priv->rx_ring[rx_queue_idx]) {
1762                         struct rx_desc *entry = NULL;
1763
1764                         for (i = 0; i < priv->rxringcount; i++) {
1765                                 entry = &priv->rx_ring[rx_queue_idx][i];
1766                                 entry->OWN = 1;
1767                         }
1768                         priv->rx_idx[rx_queue_idx] = 0;
1769                 }
1770         }
1771
1772         spin_lock_irqsave(&priv->irq_th_lock, flags);
1773         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1774                 if (priv->tx_ring[i].desc) {
1775                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1776
1777                         while (skb_queue_len(&ring->queue)) {
1778                                 struct tx_desc *entry = &ring->desc[ring->idx];
1779                                 struct sk_buff *skb =
1780                                                  __skb_dequeue(&ring->queue);
1781
1782                                 dma_unmap_single(&priv->pdev->dev,
1783                                                  entry->TxBuffAddr, skb->len,
1784                                                  DMA_TO_DEVICE);
1785                                 kfree_skb(skb);
1786                                 ring->idx = (ring->idx + 1) % ring->entries;
1787                         }
1788                         ring->idx = 0;
1789                 }
1790         }
1791         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1792 }
1793
1794 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1795                                     struct rtllib_rx_stats *stats)
1796 {
1797         struct r8192_priv *priv = rtllib_priv(dev);
1798
1799         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1800                 stats->mac_time = priv->last_rx_desc_tsf;
1801         else
1802                 priv->last_rx_desc_tsf = stats->mac_time;
1803 }
1804
1805 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1806 {
1807         long    signal_power;
1808
1809         signal_power = (long)((signal_strength_index + 1) >> 1);
1810         signal_power -= 95;
1811
1812         return signal_power;
1813 }
1814
1815 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1816                                  struct rtllib_rx_stats *pprevious_stats)
1817 {
1818         int weighting = 0;
1819
1820         if (priv->stats.recv_signal_power == 0)
1821                 priv->stats.recv_signal_power =
1822                                          pprevious_stats->RecvSignalPower;
1823
1824         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1825                 weighting = 5;
1826         else if (pprevious_stats->RecvSignalPower <
1827                  priv->stats.recv_signal_power)
1828                 weighting = (-5);
1829         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1830                                         pprevious_stats->RecvSignalPower +
1831                                         weighting) / 6;
1832 }
1833
1834 u8 rtl92e_rx_db_to_percent(s8 antpower)
1835 {
1836         if ((antpower <= -100) || (antpower >= 20))
1837                 return  0;
1838         else if (antpower >= 0)
1839                 return  100;
1840         else
1841                 return  100 + antpower;
1842
1843 }       /* QueryRxPwrPercentage */
1844
1845 u8 rtl92e_evm_db_to_percent(s8 value)
1846 {
1847         s8 ret_val = clamp(-value, 0, 33) * 3;
1848
1849         if (ret_val == 99)
1850                 ret_val = 100;
1851
1852         return ret_val;
1853 }
1854
1855 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
1856                             struct rtllib_rx_stats *ptarget_stats)
1857 {
1858         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
1859         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
1860 }
1861
1862 static void _rtl92e_rx_normal(struct net_device *dev)
1863 {
1864         struct r8192_priv *priv = rtllib_priv(dev);
1865         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
1866         bool unicast_packet = false;
1867         bool bLedBlinking = true;
1868         u16 fc = 0, type = 0;
1869         u32 skb_len = 0;
1870         int rx_queue_idx = RX_MPDU_QUEUE;
1871
1872         struct rtllib_rx_stats stats = {
1873                 .signal = 0,
1874                 .noise = (u8)-98,
1875                 .rate = 0,
1876                 .freq = RTLLIB_24GHZ_BAND,
1877         };
1878         unsigned int count = priv->rxringcount;
1879
1880         stats.nic_type = NIC_8192E;
1881
1882         while (count--) {
1883                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
1884                                         [priv->rx_idx[rx_queue_idx]];
1885                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
1886                                       [priv->rx_idx[rx_queue_idx]];
1887                 struct sk_buff *new_skb;
1888
1889                 if (pdesc->OWN)
1890                         return;
1891                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
1892                 pdesc, skb))
1893                         goto done;
1894                 new_skb = dev_alloc_skb(priv->rxbuffersize);
1895                 /* if allocation of new skb failed - drop current packet
1896                  * and reuse skb
1897                  */
1898                 if (unlikely(!new_skb))
1899                         goto done;
1900
1901                 dma_unmap_single(&priv->pdev->dev, *((dma_addr_t *)skb->cb),
1902                                  priv->rxbuffersize, DMA_FROM_DEVICE);
1903
1904                 skb_put(skb, pdesc->Length);
1905                 skb_reserve(skb, stats.RxDrvInfoSize +
1906                         stats.RxBufShift);
1907                 skb_trim(skb, skb->len - S_CRC_LEN);
1908                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
1909                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
1910                         /* unicast packet */
1911                         unicast_packet = true;
1912                 }
1913                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
1914                 type = WLAN_FC_GET_TYPE(fc);
1915                 if (type == RTLLIB_FTYPE_MGMT)
1916                         bLedBlinking = false;
1917
1918                 if (bLedBlinking)
1919                         if (priv->rtllib->LedControlHandler)
1920                                 priv->rtllib->LedControlHandler(dev,
1921                                                         LED_CTL_RX);
1922
1923                 skb_len = skb->len;
1924
1925                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
1926                         dev_kfree_skb_any(skb);
1927                 } else {
1928                         if (unicast_packet)
1929                                 priv->stats.rxbytesunicast += skb_len;
1930                 }
1931
1932                 skb = new_skb;
1933                 skb->dev = dev;
1934
1935                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
1936                                                                  skb;
1937                 *((dma_addr_t *)skb->cb) = dma_map_single(&priv->pdev->dev,
1938                                                           skb_tail_pointer_rsl(skb),
1939                                                           priv->rxbuffersize, DMA_FROM_DEVICE);
1940                 if (dma_mapping_error(&priv->pdev->dev, *((dma_addr_t *)skb->cb))) {
1941                         dev_kfree_skb_any(skb);
1942                         return;
1943                 }
1944 done:
1945                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
1946                 pdesc->OWN = 1;
1947                 pdesc->Length = priv->rxbuffersize;
1948                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
1949                         pdesc->EOR = 1;
1950                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
1951                                               priv->rxringcount;
1952         }
1953 }
1954
1955 static void _rtl92e_tx_resume(struct net_device *dev)
1956 {
1957         struct r8192_priv *priv = rtllib_priv(dev);
1958         struct rtllib_device *ieee = priv->rtllib;
1959         struct sk_buff *skb;
1960         int queue_index;
1961
1962         for (queue_index = BK_QUEUE;
1963              queue_index < MAX_QUEUE_SIZE; queue_index++) {
1964                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
1965                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
1966                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
1967                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
1968                 }
1969         }
1970 }
1971
1972 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t)
1973 {
1974         struct r8192_priv *priv = from_tasklet(priv, t, irq_tx_tasklet);
1975
1976         _rtl92e_tx_resume(priv->rtllib->dev);
1977 }
1978
1979 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t)
1980 {
1981         struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
1982
1983         _rtl92e_rx_normal(priv->rtllib->dev);
1984
1985         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
1986                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
1987 }
1988
1989 /****************************************************************************
1990  * ---------------------------- NIC START/CLOSE STUFF---------------------------
1991  ****************************************************************************/
1992 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
1993 {
1994         cancel_delayed_work_sync(&priv->watch_dog_wq);
1995         cancel_delayed_work_sync(&priv->update_beacon_wq);
1996         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
1997         cancel_work_sync(&priv->reset_wq);
1998         cancel_work_sync(&priv->qos_activate);
1999 }
2000
2001 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2002 {
2003         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2004                 return -1;
2005         return 0;
2006 }
2007
2008 static int _rtl92e_open(struct net_device *dev)
2009 {
2010         struct r8192_priv *priv = rtllib_priv(dev);
2011         int ret;
2012
2013         mutex_lock(&priv->wx_mutex);
2014         ret = _rtl92e_try_up(dev);
2015         mutex_unlock(&priv->wx_mutex);
2016         return ret;
2017 }
2018
2019 static int _rtl92e_try_up(struct net_device *dev)
2020 {
2021         struct r8192_priv *priv = rtllib_priv(dev);
2022
2023         if (priv->up == 1)
2024                 return -1;
2025         return _rtl92e_up(dev, false);
2026 }
2027
2028 static int _rtl92e_close(struct net_device *dev)
2029 {
2030         struct r8192_priv *priv = rtllib_priv(dev);
2031         int ret;
2032
2033         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2034                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2035                 rtllib_stop_scan(priv->rtllib);
2036         }
2037
2038         mutex_lock(&priv->wx_mutex);
2039
2040         ret = _rtl92e_down(dev, true);
2041
2042         mutex_unlock(&priv->wx_mutex);
2043
2044         return ret;
2045 }
2046
2047 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2048 {
2049         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2050                 return -1;
2051
2052         return 0;
2053 }
2054
2055 void rtl92e_commit(struct net_device *dev)
2056 {
2057         struct r8192_priv *priv = rtllib_priv(dev);
2058
2059         if (priv->up == 0)
2060                 return;
2061         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2062         rtl92e_irq_disable(dev);
2063         priv->ops->stop_adapter(dev, true);
2064         _rtl92e_up(dev, false);
2065 }
2066
2067 static void _rtl92e_restart(void *data)
2068 {
2069         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2070                                   reset_wq);
2071         struct net_device *dev = priv->rtllib->dev;
2072
2073         mutex_lock(&priv->wx_mutex);
2074
2075         rtl92e_commit(dev);
2076
2077         mutex_unlock(&priv->wx_mutex);
2078 }
2079
2080 static void _rtl92e_set_multicast(struct net_device *dev)
2081 {
2082         struct r8192_priv *priv = rtllib_priv(dev);
2083         short promisc;
2084
2085         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2086         priv->promisc = promisc;
2087 }
2088
2089 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2090 {
2091         struct r8192_priv *priv = rtllib_priv(dev);
2092         struct sockaddr *addr = mac;
2093
2094         mutex_lock(&priv->wx_mutex);
2095
2096         eth_hw_addr_set(dev, addr->sa_data);
2097
2098         schedule_work(&priv->reset_wq);
2099         mutex_unlock(&priv->wx_mutex);
2100
2101         return 0;
2102 }
2103
2104 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2105 {
2106         struct net_device *dev = netdev;
2107         struct r8192_priv *priv = rtllib_priv(dev);
2108         unsigned long flags;
2109         u32 inta;
2110         u32 intb;
2111
2112         intb = 0;
2113
2114         if (priv->irq_enabled == 0)
2115                 goto done;
2116
2117         spin_lock_irqsave(&priv->irq_th_lock, flags);
2118
2119         priv->ops->interrupt_recognized(dev, &inta, &intb);
2120
2121         if (!inta) {
2122                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2123                 goto done;
2124         }
2125
2126         if (inta == 0xffff) {
2127                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2128                 goto done;
2129         }
2130
2131         if (!netif_running(dev)) {
2132                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2133                 goto done;
2134         }
2135
2136         if (inta  & IMR_MGNTDOK) {
2137                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2138                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2139                 if (priv->rtllib->ack_tx_to_ieee) {
2140                         if (_rtl92e_is_tx_queue_empty(dev)) {
2141                                 priv->rtllib->ack_tx_to_ieee = 0;
2142                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2143                         }
2144                 }
2145                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2146         }
2147
2148         if (inta & IMR_COMDOK)
2149                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2150
2151         if (inta & IMR_HIGHDOK)
2152                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2153
2154         if (inta & IMR_ROK)
2155                 tasklet_schedule(&priv->irq_rx_tasklet);
2156
2157         if (inta & IMR_BcnInt)
2158                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2159
2160         if (inta & IMR_RDU) {
2161                 rtl92e_writel(dev, INTA_MASK,
2162                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2163                 tasklet_schedule(&priv->irq_rx_tasklet);
2164         }
2165
2166         if (inta & IMR_RXFOVW)
2167                 tasklet_schedule(&priv->irq_rx_tasklet);
2168
2169         if (inta & IMR_BKDOK) {
2170                 priv->rtllib->link_detect_info.NumTxOkInPeriod++;
2171                 _rtl92e_tx_isr(dev, BK_QUEUE);
2172         }
2173
2174         if (inta & IMR_BEDOK) {
2175                 priv->rtllib->link_detect_info.NumTxOkInPeriod++;
2176                 _rtl92e_tx_isr(dev, BE_QUEUE);
2177         }
2178
2179         if (inta & IMR_VIDOK) {
2180                 priv->rtllib->link_detect_info.NumTxOkInPeriod++;
2181                 _rtl92e_tx_isr(dev, VI_QUEUE);
2182         }
2183
2184         if (inta & IMR_VODOK) {
2185                 priv->rtllib->link_detect_info.NumTxOkInPeriod++;
2186                 _rtl92e_tx_isr(dev, VO_QUEUE);
2187         }
2188
2189         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2190
2191 done:
2192
2193         return IRQ_HANDLED;
2194 }
2195
2196 /****************************************************************************
2197  * ---------------------------- PCI_STUFF---------------------------
2198  ****************************************************************************/
2199 static const struct net_device_ops rtl8192_netdev_ops = {
2200         .ndo_open = _rtl92e_open,
2201         .ndo_stop = _rtl92e_close,
2202         .ndo_tx_timeout = _rtl92e_tx_timeout,
2203         .ndo_set_rx_mode = _rtl92e_set_multicast,
2204         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2205         .ndo_validate_addr = eth_validate_addr,
2206         .ndo_start_xmit = rtllib_xmit,
2207 };
2208
2209 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2210                              const struct pci_device_id *id)
2211 {
2212         unsigned long ioaddr = 0;
2213         struct net_device *dev = NULL;
2214         struct r8192_priv *priv = NULL;
2215         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2216         unsigned long pmem_start, pmem_len, pmem_flags;
2217         int err = -ENOMEM;
2218         u8 revision_id;
2219
2220         if (pci_enable_device(pdev)) {
2221                 dev_err(&pdev->dev, "Failed to enable PCI device");
2222                 return -EIO;
2223         }
2224
2225         pci_set_master(pdev);
2226
2227         if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2228                 if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2229                         dev_info(&pdev->dev,
2230                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2231                         goto err_pci_disable;
2232                 }
2233         }
2234         dev = alloc_rtllib(sizeof(struct r8192_priv));
2235         if (!dev)
2236                 goto err_pci_disable;
2237
2238         err = -ENODEV;
2239
2240         pci_set_drvdata(pdev, dev);
2241         SET_NETDEV_DEV(dev, &pdev->dev);
2242         priv = rtllib_priv(dev);
2243         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2244         priv->pdev = pdev;
2245         priv->rtllib->pdev = pdev;
2246         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2247             (pdev->subsystem_device == 0x3304))
2248                 priv->rtllib->bSupportRemoteWakeUp = 1;
2249         else
2250                 priv->rtllib->bSupportRemoteWakeUp = 0;
2251
2252         pmem_start = pci_resource_start(pdev, 1);
2253         pmem_len = pci_resource_len(pdev, 1);
2254         pmem_flags = pci_resource_flags(pdev, 1);
2255
2256         if (!(pmem_flags & IORESOURCE_MEM)) {
2257                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2258                 goto err_rel_rtllib;
2259         }
2260
2261         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2262                  pmem_start);
2263         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2264                 netdev_err(dev, "request_mem_region failed!");
2265                 goto err_rel_rtllib;
2266         }
2267
2268         ioaddr = (unsigned long)ioremap(pmem_start, pmem_len);
2269         if (ioaddr == (unsigned long)NULL) {
2270                 netdev_err(dev, "ioremap failed!");
2271                 goto err_rel_mem;
2272         }
2273
2274         dev->mem_start = ioaddr;
2275         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2276
2277         pci_read_config_byte(pdev, 0x08, &revision_id);
2278         /* If the revisionid is 0x10, the device uses rtl8192se. */
2279         if (pdev->device == 0x8192 && revision_id == 0x10)
2280                 goto err_unmap;
2281
2282         priv->ops = ops;
2283
2284         if (!rtl92e_check_adapter(pdev, dev))
2285                 goto err_unmap;
2286
2287         dev->irq = pdev->irq;
2288         priv->irq = 0;
2289
2290         dev->netdev_ops = &rtl8192_netdev_ops;
2291
2292         dev->wireless_handlers = &r8192_wx_handlers_def;
2293         dev->ethtool_ops = &rtl819x_ethtool_ops;
2294
2295         dev->type = ARPHRD_ETHER;
2296         dev->watchdog_timeo = HZ * 3;
2297
2298         if (dev_alloc_name(dev, ifname) < 0)
2299                 dev_alloc_name(dev, ifname);
2300
2301         if (_rtl92e_init(dev) != 0) {
2302                 netdev_warn(dev, "Initialization failed");
2303                 goto err_free_irq;
2304         }
2305
2306         netif_carrier_off(dev);
2307         netif_stop_queue(dev);
2308
2309         if (register_netdev(dev))
2310                 goto err_free_irq;
2311
2312         if (priv->polling_timer_on == 0)
2313                 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2314
2315         return 0;
2316
2317 err_free_irq:
2318         free_irq(dev->irq, dev);
2319         priv->irq = 0;
2320 err_unmap:
2321         iounmap((void __iomem *)ioaddr);
2322 err_rel_mem:
2323         release_mem_region(pmem_start, pmem_len);
2324 err_rel_rtllib:
2325         free_rtllib(dev);
2326 err_pci_disable:
2327         pci_disable_device(pdev);
2328         return err;
2329 }
2330
2331 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2332 {
2333         struct net_device *dev = pci_get_drvdata(pdev);
2334         struct r8192_priv *priv;
2335         u32 i;
2336
2337         if (dev) {
2338                 unregister_netdev(dev);
2339
2340                 priv = rtllib_priv(dev);
2341
2342                 del_timer_sync(&priv->gpio_polling_timer);
2343                 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2344                 priv->polling_timer_on = 0;
2345                 _rtl92e_down(dev, true);
2346                 rtl92e_dm_deinit(dev);
2347                 vfree(priv->fw_info);
2348                 priv->fw_info = NULL;
2349                 _rtl92e_free_rx_ring(dev);
2350                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2351                         _rtl92e_free_tx_ring(dev, i);
2352
2353                 if (priv->irq) {
2354                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2355                         free_irq(dev->irq, dev);
2356                         priv->irq = 0;
2357                 }
2358
2359                 if (dev->mem_start != 0) {
2360                         iounmap((void __iomem *)dev->mem_start);
2361                         release_mem_region(pci_resource_start(pdev, 1),
2362                                         pci_resource_len(pdev, 1));
2363                 }
2364
2365                 free_rtllib(dev);
2366         }
2367
2368         pci_disable_device(pdev);
2369 }
2370
2371 bool rtl92e_enable_nic(struct net_device *dev)
2372 {
2373         bool init_status = true;
2374         struct r8192_priv *priv = rtllib_priv(dev);
2375         struct rt_pwr_save_ctrl *psc = (struct rt_pwr_save_ctrl *)
2376                                         (&priv->rtllib->pwr_save_ctrl);
2377
2378         if (!priv->up) {
2379                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2380                 priv->bdisable_nic = false;
2381                 return false;
2382         }
2383
2384         init_status = priv->ops->initialize_adapter(dev);
2385         if (!init_status) {
2386                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2387                 priv->bdisable_nic = false;
2388                 return false;
2389         }
2390         RT_CLEAR_PS_LEVEL(psc, RT_RF_OFF_LEVL_HALT_NIC);
2391
2392         rtl92e_irq_enable(dev);
2393         priv->bdisable_nic = false;
2394         return init_status;
2395 }
2396
2397 bool rtl92e_disable_nic(struct net_device *dev)
2398 {
2399         struct r8192_priv *priv = rtllib_priv(dev);
2400         u8 tmp_state = 0;
2401
2402         priv->bdisable_nic = true;
2403         tmp_state = priv->rtllib->state;
2404         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2405         priv->rtllib->state = tmp_state;
2406         _rtl92e_cancel_deferred_work(priv);
2407         rtl92e_irq_disable(dev);
2408
2409         priv->ops->stop_adapter(dev, false);
2410         return true;
2411 }
2412
2413 module_pci_driver(rtl8192_pci_driver);
2414
2415 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2416 {
2417         struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2418
2419         priv->polling_timer_on = 1;
2420
2421         schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2422
2423         mod_timer(&priv->gpio_polling_timer, jiffies +
2424                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2425 }
2426
2427 /***************************************************************************
2428  * ------------------- module init / exit stubs ----------------
2429  ***************************************************************************/
2430 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2431 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2432 MODULE_VERSION(DRV_VERSION);
2433 MODULE_LICENSE("GPL");
2434 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2435 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2436 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2437
2438 module_param(ifname, charp, 0644);
2439 module_param(hwwep, int, 0644);
2440
2441 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2442 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");