Version:  2.0.40 2.2.26 2.4.37 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7

Linux/drivers/staging/rtl8192e/rtl8192e/rtl_core.c

  1 /******************************************************************************
  2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
  3  *
  4  * Based on the r8180 driver, which is:
  5  * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
  6  * This program is free software; you can redistribute it and/or modify it
  7  * under the terms of version 2 of the GNU General Public License as
  8  * published by the Free Software Foundation.
  9  *
 10  * This program is distributed in the hope that it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 13  * more details.
 14  *
 15  * The full GNU General Public License is included in this distribution in the
 16  * file called LICENSE.
 17  *
 18  * Contact Information:
 19  * wlanfae <wlanfae@realtek.com>
 20 ******************************************************************************/
 21 #include <linux/uaccess.h>
 22 #include <linux/pci.h>
 23 #include <linux/vmalloc.h>
 24 #include <linux/ieee80211.h>
 25 #include "rtl_core.h"
 26 #include "r8192E_phy.h"
 27 #include "r8192E_phyreg.h"
 28 #include "r8190P_rtl8256.h"
 29 #include "r8192E_cmdpkt.h"
 30 
 31 #include "rtl_wx.h"
 32 #include "rtl_dm.h"
 33 
 34 #include "rtl_pm.h"
 35 
 36 int hwwep = 1;
 37 static int channels = 0x3fff;
 38 static char *ifname = "wlan%d";
 39 
 40 
 41 static struct rtl819x_ops rtl819xp_ops = {
 42         .nic_type                       = NIC_8192E,
 43         .get_eeprom_size                = rtl92e_get_eeprom_size,
 44         .init_adapter_variable          = rtl92e_init_variables,
 45         .initialize_adapter             = rtl92e_start_adapter,
 46         .link_change                    = rtl92e_link_change,
 47         .tx_fill_descriptor             = rtl92e_fill_tx_desc,
 48         .tx_fill_cmd_descriptor         = rtl92e_fill_tx_cmd_desc,
 49         .rx_query_status_descriptor     = rtl92e_get_rx_stats,
 50         .rx_command_packet_handler = NULL,
 51         .stop_adapter                   = rtl92e_stop_adapter,
 52         .update_ratr_table              = rtl92e_update_ratr_table,
 53         .irq_enable                     = rtl92e_enable_irq,
 54         .irq_disable                    = rtl92e_disable_irq,
 55         .irq_clear                      = rtl92e_clear_irq,
 56         .rx_enable                      = rtl92e_enable_rx,
 57         .tx_enable                      = rtl92e_enable_tx,
 58         .interrupt_recognized           = rtl92e_ack_irq,
 59         .TxCheckStuckHandler            = rtl92e_is_tx_stuck,
 60         .RxCheckStuckHandler            = rtl92e_is_rx_stuck,
 61 };
 62 
 63 static struct pci_device_id rtl8192_pci_id_tbl[] = {
 64         {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
 65         {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
 66         {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
 67         {}
 68 };
 69 
 70 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
 71 
 72 static int _rtl92e_pci_probe(struct pci_dev *pdev,
 73                              const struct pci_device_id *id);
 74 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
 75 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
 76 
 77 static struct pci_driver rtl8192_pci_driver = {
 78         .name = DRV_NAME,       /* Driver name   */
 79         .id_table = rtl8192_pci_id_tbl, /* PCI_ID table  */
 80         .probe  = _rtl92e_pci_probe,    /* probe fn      */
 81         .remove  = _rtl92e_pci_disconnect,      /* remove fn */
 82         .suspend = rtl92e_suspend,      /* PM suspend fn */
 83         .resume = rtl92e_resume,                 /* PM resume fn  */
 84 };
 85 
 86 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
 87 static void _rtl92e_watchdog_wq_cb(void *data);
 88 static void _rtl92e_watchdog_timer_cb(unsigned long data);
 89 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 90                                    int rate);
 91 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
 92 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
 93 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
 94 static short _rtl92e_pci_initdescring(struct net_device *dev);
 95 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
 96 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
 97 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
 98 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
 99 static int _rtl92e_try_up(struct net_device *dev);
100 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
101 static void _rtl92e_restart(void *data);
102 
103 /****************************************************************************
104    -----------------------------IO STUFF-------------------------
105 *****************************************************************************/
106 
107 u8 rtl92e_readb(struct net_device *dev, int x)
108 {
109         return 0xff & readb((u8 __iomem *)dev->mem_start + x);
110 }
111 
112 u32 rtl92e_readl(struct net_device *dev, int x)
113 {
114         return readl((u8 __iomem *)dev->mem_start + x);
115 }
116 
117 u16 rtl92e_readw(struct net_device *dev, int x)
118 {
119         return readw((u8 __iomem *)dev->mem_start + x);
120 }
121 
122 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
123 {
124         writeb(y, (u8 __iomem *)dev->mem_start + x);
125 
126         udelay(20);
127 }
128 
129 void rtl92e_writel(struct net_device *dev, int x, u32 y)
130 {
131         writel(y, (u8 __iomem *)dev->mem_start + x);
132 
133         udelay(20);
134 }
135 
136 void rtl92e_writew(struct net_device *dev, int x, u16 y)
137 {
138         writew(y, (u8 __iomem *)dev->mem_start + x);
139 
140         udelay(20);
141 }
142 
143 /****************************************************************************
144    -----------------------------GENERAL FUNCTION-------------------------
145 *****************************************************************************/
146 bool rtl92e_set_rf_state(struct net_device *dev,
147                          enum rt_rf_power_state StateToSet,
148                          RT_RF_CHANGE_SOURCE ChangeSource)
149 {
150         struct r8192_priv *priv = rtllib_priv(dev);
151         struct rtllib_device *ieee = priv->rtllib;
152         bool                    bActionAllowed = false;
153         bool                    bConnectBySSID = false;
154         enum rt_rf_power_state rtState;
155         u16                     RFWaitCounter = 0;
156         unsigned long flag;
157 
158         RT_TRACE((COMP_PS | COMP_RF),
159                  "===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
160 
161         while (true) {
162                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
163                 if (priv->RFChangeInProgress) {
164                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
165                         RT_TRACE((COMP_PS | COMP_RF),
166                                  "rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
167                                  StateToSet);
168 
169                         while (priv->RFChangeInProgress) {
170                                 RFWaitCounter++;
171                                 RT_TRACE((COMP_PS | COMP_RF),
172                                          "rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
173                                          RFWaitCounter);
174                                 mdelay(1);
175 
176                                 if (RFWaitCounter > 100) {
177                                         netdev_warn(dev,
178                                                     "%s(): Timeout waiting for RF change.\n",
179                                                     __func__);
180                                         return false;
181                                 }
182                         }
183                 } else {
184                         priv->RFChangeInProgress = true;
185                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
186                         break;
187                 }
188         }
189 
190         rtState = priv->rtllib->eRFPowerState;
191 
192         switch (StateToSet) {
193         case eRfOn:
194                 priv->rtllib->RfOffReason &= (~ChangeSource);
195 
196                 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
197                         priv->bHwRadioOff = false;
198 
199                 if (!priv->rtllib->RfOffReason) {
200                         priv->rtllib->RfOffReason = 0;
201                         bActionAllowed = true;
202 
203 
204                         if (rtState == eRfOff &&
205                             ChangeSource >= RF_CHANGE_BY_HW)
206                                 bConnectBySSID = true;
207                 } else {
208                         RT_TRACE((COMP_PS | COMP_RF),
209                                  "rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
210                                   priv->rtllib->RfOffReason, ChangeSource);
211         }
212 
213                 break;
214 
215         case eRfOff:
216 
217                 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
218                     (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
219                         if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
220                             (ChangeSource > RF_CHANGE_BY_IPS)) {
221                                 if (ieee->state == RTLLIB_LINKED)
222                                         priv->blinked_ingpio = true;
223                                 else
224                                         priv->blinked_ingpio = false;
225                                 rtllib_MgntDisconnect(priv->rtllib,
226                                                       WLAN_REASON_DISASSOC_STA_HAS_LEFT);
227                         }
228                 }
229                 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
230                         priv->bHwRadioOff = true;
231                 priv->rtllib->RfOffReason |= ChangeSource;
232                 bActionAllowed = true;
233                 break;
234 
235         case eRfSleep:
236                 priv->rtllib->RfOffReason |= ChangeSource;
237                 bActionAllowed = true;
238                 break;
239 
240         default:
241                 break;
242         }
243 
244         if (bActionAllowed) {
245                 RT_TRACE((COMP_PS | COMP_RF),
246                          "rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
247                          StateToSet, priv->rtllib->RfOffReason);
248                 PHY_SetRFPowerState(dev, StateToSet);
249                 if (StateToSet == eRfOn) {
250 
251                         if (bConnectBySSID && priv->blinked_ingpio) {
252                                 schedule_delayed_work(
253                                          &ieee->associate_procedure_wq, 0);
254                                 priv->blinked_ingpio = false;
255                         }
256                 }
257         } else {
258                 RT_TRACE((COMP_PS | COMP_RF),
259                          "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
260                          StateToSet, ChangeSource, priv->rtllib->RfOffReason);
261         }
262 
263         spin_lock_irqsave(&priv->rf_ps_lock, flag);
264         priv->RFChangeInProgress = false;
265         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
266 
267         RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
268         return bActionAllowed;
269 }
270 
271 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
272 {
273         struct r8192_priv *priv = rtllib_priv(dev);
274         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
275 
276         if (ring->entries - skb_queue_len(&ring->queue) >= 2)
277                 return 1;
278         return 0;
279 }
280 
281 static void _rtl92e_tx_timeout(struct net_device *dev)
282 {
283         struct r8192_priv *priv = rtllib_priv(dev);
284 
285         schedule_work(&priv->reset_wq);
286         netdev_info(dev, "TXTIMEOUT");
287 }
288 
289 void rtl92e_irq_enable(struct net_device *dev)
290 {
291         struct r8192_priv *priv = rtllib_priv(dev);
292 
293         priv->irq_enabled = 1;
294 
295         priv->ops->irq_enable(dev);
296 }
297 
298 void rtl92e_irq_disable(struct net_device *dev)
299 {
300         struct r8192_priv *priv = rtllib_priv(dev);
301 
302         priv->ops->irq_disable(dev);
303 
304         priv->irq_enabled = 0;
305 }
306 
307 static void _rtl92e_set_chan(struct net_device *dev, short ch)
308 {
309         struct r8192_priv *priv = rtllib_priv(dev);
310 
311         RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
312         if (priv->chan_forced)
313                 return;
314 
315         priv->chan = ch;
316 
317         if (priv->rf_set_chan)
318                 priv->rf_set_chan(dev, priv->chan);
319 }
320 
321 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
322 {
323         struct r8192_priv *priv = rtllib_priv(dev);
324         struct rtllib_network *net = &priv->rtllib->current_network;
325         bool            ShortPreamble;
326 
327         if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
328                 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
329                         ShortPreamble = true;
330                         priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
331                         RT_TRACE(COMP_DBG,
332                                  "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
333                                  __func__);
334                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
335                                         (unsigned char *)&ShortPreamble);
336                 }
337         } else {
338                 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
339                         ShortPreamble = false;
340                         priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
341                         RT_TRACE(COMP_DBG,
342                                  "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
343                                  __func__);
344                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
345                                               (unsigned char *)&ShortPreamble);
346                 }
347         }
348 
349         if (net->mode & (IEEE_G|IEEE_N_24G)) {
350                 u8      slot_time_val;
351                 u8      CurSlotTime = priv->slot_time;
352 
353                 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
354                    (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
355                         if (CurSlotTime != SHORT_SLOT_TIME) {
356                                 slot_time_val = SHORT_SLOT_TIME;
357                                 priv->rtllib->SetHwRegHandler(dev,
358                                          HW_VAR_SLOT_TIME, &slot_time_val);
359                         }
360                 } else {
361                         if (CurSlotTime != NON_SHORT_SLOT_TIME) {
362                                 slot_time_val = NON_SHORT_SLOT_TIME;
363                                 priv->rtllib->SetHwRegHandler(dev,
364                                          HW_VAR_SLOT_TIME, &slot_time_val);
365                         }
366                 }
367         }
368 }
369 
370 static struct rtllib_qos_parameters def_qos_parameters = {
371         {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
372         {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
373         {2, 2, 2, 2},
374         {0, 0, 0, 0},
375         {0, 0, 0, 0}
376 };
377 
378 static void _rtl92e_update_beacon(void *data)
379 {
380         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
381                                   update_beacon_wq.work);
382         struct net_device *dev = priv->rtllib->dev;
383         struct rtllib_device *ieee = priv->rtllib;
384         struct rtllib_network *net = &ieee->current_network;
385 
386         if (ieee->pHTInfo->bCurrentHTSupport)
387                 HT_update_self_and_peer_setting(ieee, net);
388         ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
389                  net->bssht.bdRT2RTLongSlotTime;
390         ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
391         _rtl92e_update_cap(dev, net->capability);
392 }
393 
394 static void _rtl92e_qos_activate(void *data)
395 {
396         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
397                                   qos_activate);
398         struct net_device *dev = priv->rtllib->dev;
399         int i;
400 
401         mutex_lock(&priv->mutex);
402         if (priv->rtllib->state != RTLLIB_LINKED)
403                 goto success;
404         RT_TRACE(COMP_QOS,
405                  "qos active process with associate response received\n");
406 
407         for (i = 0; i <  QOS_QUEUE_NUM; i++)
408                 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
409 
410 
411 success:
412         mutex_unlock(&priv->mutex);
413 }
414 
415 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
416                                              int active_network,
417                                              struct rtllib_network *network)
418 {
419         int ret = 0;
420         u32 size = sizeof(struct rtllib_qos_parameters);
421 
422         if (priv->rtllib->state != RTLLIB_LINKED)
423                 return ret;
424 
425         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
426                 return ret;
427 
428         if (network->flags & NETWORK_HAS_QOS_MASK) {
429                 if (active_network &&
430                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
431                         network->qos_data.active = network->qos_data.supported;
432 
433                 if ((network->qos_data.active == 1) && (active_network == 1) &&
434                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
435                                 (network->qos_data.old_param_count !=
436                                 network->qos_data.param_count)) {
437                         network->qos_data.old_param_count =
438                                 network->qos_data.param_count;
439         priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
440                         schedule_work(&priv->qos_activate);
441                         RT_TRACE(COMP_QOS,
442                                  "QoS parameters change call qos_activate\n");
443                 }
444         } else {
445                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
446                        &def_qos_parameters, size);
447 
448                 if ((network->qos_data.active == 1) && (active_network == 1)) {
449                         schedule_work(&priv->qos_activate);
450                         RT_TRACE(COMP_QOS,
451                                  "QoS was disabled call qos_activate\n");
452                 }
453                 network->qos_data.active = 0;
454                 network->qos_data.supported = 0;
455         }
456 
457         return 0;
458 }
459 
460 static int _rtl92e_handle_beacon(struct net_device *dev,
461                                  struct rtllib_beacon *beacon,
462                                  struct rtllib_network *network)
463 {
464         struct r8192_priv *priv = rtllib_priv(dev);
465 
466         _rtl92e_qos_handle_probe_response(priv, 1, network);
467 
468         schedule_delayed_work(&priv->update_beacon_wq, 0);
469         return 0;
470 
471 }
472 
473 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
474                                   struct rtllib_network *network)
475 {
476         unsigned long flags;
477         u32 size = sizeof(struct rtllib_qos_parameters);
478         int set_qos_param = 0;
479 
480         if ((priv == NULL) || (network == NULL))
481                 return 0;
482 
483         if (priv->rtllib->state != RTLLIB_LINKED)
484                 return 0;
485 
486         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
487                 return 0;
488 
489         spin_lock_irqsave(&priv->rtllib->lock, flags);
490         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
491                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
492                        &network->qos_data.parameters,
493                        sizeof(struct rtllib_qos_parameters));
494                 priv->rtllib->current_network.qos_data.active = 1;
495                 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
496                 set_qos_param = 1;
497                 priv->rtllib->current_network.qos_data.old_param_count =
498                         priv->rtllib->current_network.qos_data.param_count;
499                 priv->rtllib->current_network.qos_data.param_count =
500                         network->qos_data.param_count;
501         } else {
502                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
503                 &def_qos_parameters, size);
504                 priv->rtllib->current_network.qos_data.active = 0;
505                 priv->rtllib->current_network.qos_data.supported = 0;
506                 set_qos_param = 1;
507         }
508 
509         spin_unlock_irqrestore(&priv->rtllib->lock, flags);
510 
511         RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
512                  network->flags, priv->rtllib->current_network.qos_data.active);
513         if (set_qos_param == 1) {
514                 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
515                 schedule_work(&priv->qos_activate);
516         }
517         return 0;
518 }
519 
520 static int _rtl92e_handle_assoc_response(struct net_device *dev,
521                                  struct rtllib_assoc_response_frame *resp,
522                                  struct rtllib_network *network)
523 {
524         struct r8192_priv *priv = rtllib_priv(dev);
525 
526         _rtl92e_qos_assoc_resp(priv, network);
527         return 0;
528 }
529 
530 static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
531 {
532         struct net_device *dev = priv->rtllib->dev;
533         struct sk_buff *pskb = NULL, *pnewskb = NULL;
534         struct cb_desc *tcb_desc = NULL;
535         struct rtl8192_tx_ring *ring = NULL;
536         struct tx_desc *pdesc = NULL;
537 
538         ring = &priv->tx_ring[BEACON_QUEUE];
539         pskb = __skb_dequeue(&ring->queue);
540         kfree_skb(pskb);
541 
542         pnewskb = rtllib_get_beacon(priv->rtllib);
543         if (!pnewskb)
544                 return;
545 
546         tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
547         tcb_desc->queue_index = BEACON_QUEUE;
548         tcb_desc->data_rate = 2;
549         tcb_desc->RATRIndex = 7;
550         tcb_desc->bTxDisableRateFallBack = 1;
551         tcb_desc->bTxUseDriverAssingedRate = 1;
552         skb_push(pnewskb, priv->rtllib->tx_headroom);
553 
554         pdesc = &ring->desc[0];
555         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
556         __skb_queue_tail(&ring->queue, pnewskb);
557         pdesc->OWN = 1;
558 }
559 
560 static void _rtl92e_stop_beacon(struct net_device *dev)
561 {
562 }
563 
564 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
565 {
566         struct r8192_priv *priv = rtllib_priv(dev);
567         struct rtllib_network *net;
568         u8 i = 0, basic_rate = 0;
569 
570         net = &priv->rtllib->current_network;
571 
572         for (i = 0; i < net->rates_len; i++) {
573                 basic_rate = net->rates[i] & 0x7f;
574                 switch (basic_rate) {
575                 case MGN_1M:
576                         *rate_config |= RRSR_1M;
577                         break;
578                 case MGN_2M:
579                         *rate_config |= RRSR_2M;
580                         break;
581                 case MGN_5_5M:
582                         *rate_config |= RRSR_5_5M;
583                         break;
584                 case MGN_11M:
585                         *rate_config |= RRSR_11M;
586                         break;
587                 case MGN_6M:
588                         *rate_config |= RRSR_6M;
589                         break;
590                 case MGN_9M:
591                         *rate_config |= RRSR_9M;
592                         break;
593                 case MGN_12M:
594                         *rate_config |= RRSR_12M;
595                         break;
596                 case MGN_18M:
597                         *rate_config |= RRSR_18M;
598                         break;
599                 case MGN_24M:
600                         *rate_config |= RRSR_24M;
601                         break;
602                 case MGN_36M:
603                         *rate_config |= RRSR_36M;
604                         break;
605                 case MGN_48M:
606                         *rate_config |= RRSR_48M;
607                         break;
608                 case MGN_54M:
609                         *rate_config |= RRSR_54M;
610                         break;
611                 }
612         }
613 
614         for (i = 0; i < net->rates_ex_len; i++) {
615                 basic_rate = net->rates_ex[i] & 0x7f;
616                 switch (basic_rate) {
617                 case MGN_1M:
618                         *rate_config |= RRSR_1M;
619                         break;
620                 case MGN_2M:
621                         *rate_config |= RRSR_2M;
622                         break;
623                 case MGN_5_5M:
624                         *rate_config |= RRSR_5_5M;
625                         break;
626                 case MGN_11M:
627                         *rate_config |= RRSR_11M;
628                         break;
629                 case MGN_6M:
630                         *rate_config |= RRSR_6M;
631                         break;
632                 case MGN_9M:
633                         *rate_config |= RRSR_9M;
634                         break;
635                 case MGN_12M:
636                         *rate_config |= RRSR_12M;
637                         break;
638                 case MGN_18M:
639                         *rate_config |= RRSR_18M;
640                         break;
641                 case MGN_24M:
642                         *rate_config |= RRSR_24M;
643                         break;
644                 case MGN_36M:
645                         *rate_config |= RRSR_36M;
646                         break;
647                 case MGN_48M:
648                         *rate_config |= RRSR_48M;
649                         break;
650                 case MGN_54M:
651                         *rate_config |= RRSR_54M;
652                         break;
653                 }
654         }
655 }
656 
657 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
658 {
659         struct rtllib_device *ieee = priv->rtllib;
660 
661         if (ieee->mode == WIRELESS_MODE_N_24G ||
662             ieee->mode == WIRELESS_MODE_N_5G) {
663                 memcpy(ieee->Regdot11HTOperationalRateSet,
664                        ieee->RegHTSuppRateSet, 16);
665                 memcpy(ieee->Regdot11TxHTOperationalRateSet,
666                        ieee->RegHTSuppRateSet, 16);
667 
668         } else {
669                 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
670         }
671 }
672 
673 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
674 {
675         struct r8192_priv *priv = rtllib_priv(dev);
676         u8 ret = 0;
677 
678         switch (priv->rf_chip) {
679         case RF_8225:
680         case RF_8256:
681         case RF_6052:
682         case RF_PSEUDO_11N:
683                 ret = (WIRELESS_MODE_N_24G|WIRELESS_MODE_G | WIRELESS_MODE_B);
684                 break;
685         case RF_8258:
686                 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
687                 break;
688         default:
689                 ret = WIRELESS_MODE_B;
690                 break;
691         }
692         return ret;
693 }
694 
695 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
696 {
697         struct r8192_priv *priv = rtllib_priv(dev);
698         u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
699 
700         if ((wireless_mode == WIRELESS_MODE_AUTO) ||
701             ((wireless_mode & bSupportMode) == 0)) {
702                 if (bSupportMode & WIRELESS_MODE_N_24G) {
703                         wireless_mode = WIRELESS_MODE_N_24G;
704                 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
705                         wireless_mode = WIRELESS_MODE_N_5G;
706                 } else if ((bSupportMode & WIRELESS_MODE_A)) {
707                         wireless_mode = WIRELESS_MODE_A;
708                 } else if ((bSupportMode & WIRELESS_MODE_G)) {
709                         wireless_mode = WIRELESS_MODE_G;
710                 } else if ((bSupportMode & WIRELESS_MODE_B)) {
711                         wireless_mode = WIRELESS_MODE_B;
712                 } else {
713                         netdev_info(dev,
714                                     "%s(): Unsupported mode requested. Fallback to 802.11b\n",
715                                     __func__);
716                         wireless_mode = WIRELESS_MODE_B;
717                 }
718         }
719 
720         if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
721             (WIRELESS_MODE_G | WIRELESS_MODE_B))
722                 wireless_mode = WIRELESS_MODE_G;
723 
724         priv->rtllib->mode = wireless_mode;
725 
726         if ((wireless_mode == WIRELESS_MODE_N_24G) ||
727             (wireless_mode == WIRELESS_MODE_N_5G)) {
728                 priv->rtllib->pHTInfo->bEnableHT = 1;
729         RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
730                  __func__, wireless_mode);
731         } else {
732                 priv->rtllib->pHTInfo->bEnableHT = 0;
733                 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
734                          __func__, wireless_mode);
735         }
736 
737         RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
738         _rtl92e_refresh_support_rate(priv);
739 }
740 
741 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
742 {
743         struct r8192_priv *priv = rtllib_priv(dev);
744         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
745                                         (&(priv->rtllib->PowerSaveControl));
746         bool init_status = true;
747 
748         priv->bDriverIsGoingToUnload = false;
749         priv->bdisable_nic = false;
750 
751         priv->up = 1;
752         priv->rtllib->ieee_up = 1;
753 
754         priv->up_first_time = 0;
755         RT_TRACE(COMP_INIT, "Bringing up iface");
756         priv->bfirst_init = true;
757         init_status = priv->ops->initialize_adapter(dev);
758         if (!init_status) {
759                 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
760                 priv->bfirst_init = false;
761                 return -1;
762         }
763 
764         RT_TRACE(COMP_INIT, "start adapter finished\n");
765         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
766         priv->bfirst_init = false;
767 
768         if (priv->polling_timer_on == 0)
769                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
770 
771         if (priv->rtllib->state != RTLLIB_LINKED)
772                 rtllib_softmac_start_protocol(priv->rtllib, 0);
773         rtllib_reset_queue(priv->rtllib);
774         _rtl92e_watchdog_timer_cb((unsigned long)dev);
775 
776         if (!netif_queue_stopped(dev))
777                 netif_start_queue(dev);
778         else
779                 netif_wake_queue(dev);
780 
781         return 0;
782 }
783 
784 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
785 {
786         struct r8192_priv *priv = rtllib_priv(dev);
787         unsigned long flags = 0;
788         u8 RFInProgressTimeOut = 0;
789 
790         if (priv->up == 0)
791                 return -1;
792 
793         if (priv->rtllib->rtllib_ips_leave != NULL)
794                 priv->rtllib->rtllib_ips_leave(dev);
795 
796         if (priv->rtllib->state == RTLLIB_LINKED)
797                 rtl92e_leisure_ps_leave(dev);
798 
799         priv->bDriverIsGoingToUnload = true;
800         priv->up = 0;
801         priv->rtllib->ieee_up = 0;
802         priv->bfirst_after_down = true;
803         RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
804         if (!netif_queue_stopped(dev))
805                 netif_stop_queue(dev);
806 
807         priv->rtllib->wpa_ie_len = 0;
808         kfree(priv->rtllib->wpa_ie);
809         priv->rtllib->wpa_ie = NULL;
810         rtl92e_cam_reset(dev);
811         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
812         rtl92e_irq_disable(dev);
813 
814         del_timer_sync(&priv->watch_dog_timer);
815         _rtl92e_cancel_deferred_work(priv);
816         cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
817 
818         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
819         spin_lock_irqsave(&priv->rf_ps_lock, flags);
820         while (priv->RFChangeInProgress) {
821                 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
822                 if (RFInProgressTimeOut > 100) {
823                         spin_lock_irqsave(&priv->rf_ps_lock, flags);
824                         break;
825                 }
826                 RT_TRACE(COMP_DBG,
827                          "===>%s():RF is in progress, need to wait until rf change is done.\n",
828                          __func__);
829                 mdelay(1);
830                 RFInProgressTimeOut++;
831                 spin_lock_irqsave(&priv->rf_ps_lock, flags);
832         }
833         priv->RFChangeInProgress = true;
834         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
835         priv->ops->stop_adapter(dev, false);
836         spin_lock_irqsave(&priv->rf_ps_lock, flags);
837         priv->RFChangeInProgress = false;
838         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
839         udelay(100);
840         memset(&priv->rtllib->current_network, 0,
841                offsetof(struct rtllib_network, list));
842         RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
843 
844         return 0;
845 }
846 
847 static void _rtl92e_init_priv_handler(struct net_device *dev)
848 {
849         struct r8192_priv *priv = rtllib_priv(dev);
850 
851         priv->rtllib->softmac_hard_start_xmit   = _rtl92e_hard_start_xmit;
852         priv->rtllib->set_chan                  = _rtl92e_set_chan;
853         priv->rtllib->link_change               = priv->ops->link_change;
854         priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
855         priv->rtllib->check_nic_enough_desc     = _rtl92e_check_nic_enough_desc;
856         priv->rtllib->handle_assoc_response     = _rtl92e_handle_assoc_response;
857         priv->rtllib->handle_beacon             = _rtl92e_handle_beacon;
858         priv->rtllib->SetWirelessMode           = rtl92e_set_wireless_mode;
859         priv->rtllib->LeisurePSLeave            = rtl92e_leisure_ps_leave;
860         priv->rtllib->SetBWModeHandler          = rtl92e_set_bw_mode;
861         priv->rf_set_chan                       = rtl92e_set_channel;
862 
863         priv->rtllib->start_send_beacons = rtl92e_start_beacon;
864         priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
865 
866         priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
867         priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
868         priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
869 
870         priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
871         priv->rtllib->GetHalfNmodeSupportByAPsHandler =
872                                                 rtl92e_is_halfn_supported_by_ap;
873 
874         priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
875         priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
876         priv->rtllib->SetFwCmdHandler = NULL;
877         priv->rtllib->InitialGainHandler = rtl92e_init_gain;
878         priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
879         priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
880 
881         priv->rtllib->LedControlHandler = NULL;
882         priv->rtllib->UpdateBeaconInterruptHandler = NULL;
883 
884         priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
885 }
886 
887 static void _rtl92e_init_priv_constant(struct net_device *dev)
888 {
889         struct r8192_priv *priv = rtllib_priv(dev);
890         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
891                                         &(priv->rtllib->PowerSaveControl);
892 
893         pPSC->RegMaxLPSAwakeIntvl = 5;
894 }
895 
896 
897 static void _rtl92e_init_priv_variable(struct net_device *dev)
898 {
899         struct r8192_priv *priv = rtllib_priv(dev);
900         u8 i;
901 
902         priv->AcmMethod = eAcmWay2_SW;
903         priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
904         priv->rtllib->status = 0;
905         priv->polling_timer_on = 0;
906         priv->up_first_time = 1;
907         priv->blinked_ingpio = false;
908         priv->bDriverIsGoingToUnload = false;
909         priv->being_init_adapter = false;
910         priv->initialized_at_probe = false;
911         priv->bdisable_nic = false;
912         priv->bfirst_init = false;
913         priv->txringcount = 64;
914         priv->rxbuffersize = 9100;
915         priv->rxringcount = MAX_RX_COUNT;
916         priv->irq_enabled = 0;
917         priv->chan = 1;
918         priv->RegChannelPlan = 0xf;
919         priv->rtllib->mode = WIRELESS_MODE_AUTO;
920         priv->rtllib->iw_mode = IW_MODE_INFRA;
921         priv->rtllib->bNetPromiscuousMode = false;
922         priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
923         priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
924                                                                  false;
925         priv->rtllib->ieee_up = 0;
926         priv->retry_rts = DEFAULT_RETRY_RTS;
927         priv->retry_data = DEFAULT_RETRY_DATA;
928         priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
929         priv->rtllib->rate = 110;
930         priv->rtllib->short_slot = 1;
931         priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
932         priv->bcck_in_ch14 = false;
933         priv->bfsync_processing  = false;
934         priv->CCKPresentAttentuation = 0;
935         priv->rfa_txpowertrackingindex = 0;
936         priv->rfc_txpowertrackingindex = 0;
937         priv->CckPwEnl = 6;
938         priv->ScanDelay = 50;
939         priv->ResetProgress = RESET_TYPE_NORESET;
940         priv->bForcedSilentReset = false;
941         priv->bDisableNormalResetCheck = false;
942         priv->force_reset = false;
943         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
944 
945         memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
946         priv->RxCounter = 0;
947         priv->rtllib->wx_set_enc = 0;
948         priv->bHwRadioOff = false;
949         priv->RegRfOff = false;
950         priv->isRFOff = false;
951         priv->bInPowerSaveMode = false;
952         priv->rtllib->RfOffReason = 0;
953         priv->RFChangeInProgress = false;
954         priv->bHwRfOffAction = 0;
955         priv->SetRFPowerStateInProgress = false;
956         priv->rtllib->PowerSaveControl.bInactivePs = true;
957         priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
958         priv->rtllib->PowerSaveControl.bLeisurePs = true;
959         priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
960         priv->rtllib->LPSDelayCnt = 0;
961         priv->rtllib->sta_sleep = LPS_IS_WAKE;
962         priv->rtllib->eRFPowerState = eRfOn;
963 
964         priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
965         priv->rtllib->iw_mode = IW_MODE_INFRA;
966         priv->rtllib->active_scan = 1;
967         priv->rtllib->be_scan_inprogress = false;
968         priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
969                                    RTLLIB_OFDM_MODULATION;
970         priv->rtllib->host_encrypt = 1;
971         priv->rtllib->host_decrypt = 1;
972 
973         priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
974 
975         priv->card_type = PCI;
976 
977         priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
978         if (!priv->pFirmware)
979                 netdev_err(dev,
980                            "rtl8192e: Unable to allocate space for firmware\n");
981 
982         skb_queue_head_init(&priv->skb_queue);
983 
984         for (i = 0; i < MAX_QUEUE_SIZE; i++)
985                 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
986         for (i = 0; i < MAX_QUEUE_SIZE; i++)
987                 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
988 }
989 
990 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
991 {
992         spin_lock_init(&priv->tx_lock);
993         spin_lock_init(&priv->irq_th_lock);
994         spin_lock_init(&priv->rf_ps_lock);
995         spin_lock_init(&priv->ps_lock);
996         sema_init(&priv->wx_sem, 1);
997         sema_init(&priv->rf_sem, 1);
998         mutex_init(&priv->mutex);
999 }
1000 
1001 static void _rtl92e_init_priv_task(struct net_device *dev)
1002 {
1003         struct r8192_priv *priv = rtllib_priv(dev);
1004 
1005         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1006         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1007                       dev);
1008         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1009                               (void *)_rtl92e_watchdog_wq_cb, dev);
1010         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1011                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
1012         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1013                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1014         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1015                               (void *)_rtl92e_update_beacon, dev);
1016         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1017         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1018                               (void *) rtl92e_hw_wakeup_wq, dev);
1019         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1020                               (void *) rtl92e_hw_sleep_wq, dev);
1021         tasklet_init(&priv->irq_rx_tasklet,
1022                      (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1023                      (unsigned long)priv);
1024         tasklet_init(&priv->irq_tx_tasklet,
1025                      (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1026                      (unsigned long)priv);
1027         tasklet_init(&priv->irq_prepare_beacon_tasklet,
1028                      (void(*)(unsigned long))_rtl92e_prepare_beacon,
1029                      (unsigned long)priv);
1030 }
1031 
1032 static short _rtl92e_get_channel_map(struct net_device *dev)
1033 {
1034         int i;
1035 
1036         struct r8192_priv *priv = rtllib_priv(dev);
1037 
1038         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
1039                         && (priv->rf_chip != RF_6052)) {
1040                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1041                            __func__);
1042                 return -1;
1043         }
1044 
1045         if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1046                 netdev_info(dev,
1047                             "rtl819x_init:Error channel plan! Set to default.\n");
1048                 priv->ChannelPlan = COUNTRY_CODE_FCC;
1049         }
1050         RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1051         dot11d_init(priv->rtllib);
1052         Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1053         for (i = 1; i <= 11; i++)
1054                 (priv->rtllib->active_channel_map)[i] = 1;
1055         (priv->rtllib->active_channel_map)[12] = 2;
1056         (priv->rtllib->active_channel_map)[13] = 2;
1057 
1058         return 0;
1059 }
1060 
1061 static short _rtl92e_init(struct net_device *dev)
1062 {
1063         struct r8192_priv *priv = rtllib_priv(dev);
1064 
1065         memset(&(priv->stats), 0, sizeof(struct rt_stats));
1066 
1067         _rtl92e_init_priv_handler(dev);
1068         _rtl92e_init_priv_constant(dev);
1069         _rtl92e_init_priv_variable(dev);
1070         _rtl92e_init_priv_lock(priv);
1071         _rtl92e_init_priv_task(dev);
1072         priv->ops->get_eeprom_size(dev);
1073         priv->ops->init_adapter_variable(dev);
1074         _rtl92e_get_channel_map(dev);
1075 
1076         rtl92e_dm_init(dev);
1077 
1078         setup_timer(&priv->watch_dog_timer,
1079                     _rtl92e_watchdog_timer_cb,
1080                     (unsigned long) dev);
1081 
1082         setup_timer(&priv->gpio_polling_timer,
1083                     rtl92e_check_rfctrl_gpio_timer,
1084                     (unsigned long)dev);
1085 
1086         rtl92e_irq_disable(dev);
1087         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1088                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1089                 return -1;
1090         }
1091 
1092         priv->irq = dev->irq;
1093         RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1094 
1095         if (_rtl92e_pci_initdescring(dev) != 0) {
1096                 netdev_err(dev, "Endopoints initialization failed");
1097                 free_irq(dev->irq, dev);
1098                 return -1;
1099         }
1100 
1101         return 0;
1102 }
1103 
1104 /***************************************************************************
1105         -------------------------------WATCHDOG STUFF---------------------------
1106 ***************************************************************************/
1107 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1108 {
1109         int i = 0;
1110         struct r8192_priv *priv = rtllib_priv(dev);
1111 
1112         for (i = 0; i <= MGNT_QUEUE; i++) {
1113                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1114                         continue;
1115                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1116                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1117                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1118                         return 0;
1119                 }
1120         }
1121         return 1;
1122 }
1123 
1124 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1125 {
1126         struct r8192_priv *priv = rtllib_priv(dev);
1127         u8      QueueID;
1128         bool    bCheckFwTxCnt = false;
1129         struct rtl8192_tx_ring  *ring = NULL;
1130         struct sk_buff *skb = NULL;
1131         struct cb_desc *tcb_desc = NULL;
1132         unsigned long flags = 0;
1133 
1134         switch (priv->rtllib->ps) {
1135         case RTLLIB_PS_DISABLED:
1136                 break;
1137         case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
1138                 break;
1139         default:
1140                 break;
1141         }
1142         spin_lock_irqsave(&priv->irq_th_lock, flags);
1143         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1144                 if (QueueID == TXCMD_QUEUE)
1145                         continue;
1146 
1147                 if (QueueID == BEACON_QUEUE)
1148                         continue;
1149 
1150                 ring = &priv->tx_ring[QueueID];
1151 
1152                 if (skb_queue_len(&ring->queue) == 0) {
1153                         continue;
1154                 } else {
1155                         skb = (&ring->queue)->next;
1156                         tcb_desc = (struct cb_desc *)(skb->cb +
1157                                     MAX_DEV_ADDR_SIZE);
1158                         tcb_desc->nStuckCount++;
1159                         bCheckFwTxCnt = true;
1160                         if (tcb_desc->nStuckCount > 1)
1161                                 netdev_info(dev,
1162                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1163                                             __func__, QueueID,
1164                                             tcb_desc->nStuckCount);
1165                 }
1166         }
1167         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1168 
1169         if (bCheckFwTxCnt) {
1170                 if (priv->ops->TxCheckStuckHandler(dev)) {
1171                         RT_TRACE(COMP_RESET,
1172                                  "TxCheckStuck(): Fw indicates no Tx condition!\n");
1173                         return RESET_TYPE_SILENT;
1174                 }
1175         }
1176 
1177         return RESET_TYPE_NORESET;
1178 }
1179 
1180 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1181 {
1182         struct r8192_priv *priv = rtllib_priv(dev);
1183 
1184         if (priv->ops->RxCheckStuckHandler(dev)) {
1185                 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1186                 return RESET_TYPE_SILENT;
1187         }
1188 
1189         return RESET_TYPE_NORESET;
1190 }
1191 
1192 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1193 {
1194         struct r8192_priv *priv = rtllib_priv(dev);
1195         enum reset_type TxResetType = RESET_TYPE_NORESET;
1196         enum reset_type RxResetType = RESET_TYPE_NORESET;
1197         enum rt_rf_power_state rfState;
1198 
1199         rfState = priv->rtllib->eRFPowerState;
1200 
1201         if (rfState == eRfOn)
1202                 TxResetType = _rtl92e_tx_check_stuck(dev);
1203 
1204         if (rfState == eRfOn &&
1205             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1206             (priv->rtllib->state == RTLLIB_LINKED))
1207                 RxResetType = _rtl92e_rx_check_stuck(dev);
1208 
1209         if (TxResetType == RESET_TYPE_NORMAL ||
1210             RxResetType == RESET_TYPE_NORMAL) {
1211                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1212                             __func__, TxResetType, RxResetType);
1213                 return RESET_TYPE_NORMAL;
1214         } else if (TxResetType == RESET_TYPE_SILENT ||
1215                    RxResetType == RESET_TYPE_SILENT) {
1216                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1217                             __func__, TxResetType, RxResetType);
1218                 return RESET_TYPE_SILENT;
1219         } else {
1220                 return RESET_TYPE_NORESET;
1221         }
1222 
1223 }
1224 
1225 static void _rtl92e_if_silent_reset(struct net_device *dev)
1226 {
1227         struct r8192_priv *priv = rtllib_priv(dev);
1228         u8      reset_times = 0;
1229         int reset_status = 0;
1230         struct rtllib_device *ieee = priv->rtllib;
1231         unsigned long flag;
1232 
1233         if (priv->ResetProgress == RESET_TYPE_NORESET) {
1234 
1235                 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1236 
1237                 priv->ResetProgress = RESET_TYPE_SILENT;
1238 
1239                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1240                 if (priv->RFChangeInProgress) {
1241                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1242                         goto END;
1243                 }
1244                 priv->RFChangeInProgress = true;
1245                 priv->bResetInProgress = true;
1246                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1247 
1248 RESET_START:
1249 
1250                 down(&priv->wx_sem);
1251 
1252                 if (priv->rtllib->state == RTLLIB_LINKED)
1253                         rtl92e_leisure_ps_leave(dev);
1254 
1255                 if (priv->up) {
1256                         netdev_info(dev, "%s():the driver is not up.\n",
1257                                     __func__);
1258                         up(&priv->wx_sem);
1259                         return;
1260                 }
1261                 priv->up = 0;
1262 
1263                 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1264                           __func__);
1265                 mdelay(1000);
1266                 RT_TRACE(COMP_RESET,
1267                          "%s():111111111111111111111111======>start to down the driver\n",
1268                          __func__);
1269 
1270                 if (!netif_queue_stopped(dev))
1271                         netif_stop_queue(dev);
1272 
1273                 rtl92e_irq_disable(dev);
1274                 del_timer_sync(&priv->watch_dog_timer);
1275                 _rtl92e_cancel_deferred_work(priv);
1276                 rtl92e_dm_deinit(dev);
1277                 rtllib_stop_scan_syncro(ieee);
1278 
1279                 if (ieee->state == RTLLIB_LINKED) {
1280                         SEM_DOWN_IEEE_WX(&ieee->wx_sem);
1281                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1282                         rtllib_stop_send_beacons(priv->rtllib);
1283                         del_timer_sync(&ieee->associate_timer);
1284                         cancel_delayed_work(&ieee->associate_retry_wq);
1285                         rtllib_stop_scan(ieee);
1286                         netif_carrier_off(dev);
1287                         SEM_UP_IEEE_WX(&ieee->wx_sem);
1288                 } else {
1289                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1290                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1291                 }
1292 
1293                 rtl92e_dm_backup_state(dev);
1294 
1295                 up(&priv->wx_sem);
1296                 RT_TRACE(COMP_RESET,
1297                          "%s():<==========down process is finished\n",
1298                          __func__);
1299 
1300                 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1301                          __func__);
1302                 reset_status = _rtl92e_up(dev, true);
1303 
1304                 RT_TRACE(COMP_RESET,
1305                          "%s():<===========up process is finished\n", __func__);
1306                 if (reset_status == -1) {
1307                         if (reset_times < 3) {
1308                                 reset_times++;
1309                                 goto RESET_START;
1310                         } else {
1311                                 netdev_warn(dev, "%s(): Reset Failed\n",
1312                                             __func__);
1313                         }
1314                 }
1315 
1316                 ieee->is_silent_reset = 1;
1317 
1318                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1319                 priv->RFChangeInProgress = false;
1320                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1321 
1322                 rtl92e_enable_hw_security_config(dev);
1323 
1324                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1325                     IW_MODE_INFRA) {
1326                         ieee->set_chan(ieee->dev,
1327                                        ieee->current_network.channel);
1328 
1329                         schedule_work(&ieee->associate_complete_wq);
1330 
1331                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1332                            IW_MODE_ADHOC) {
1333                         ieee->set_chan(ieee->dev,
1334                                        ieee->current_network.channel);
1335                         ieee->link_change(ieee->dev);
1336 
1337                         notify_wx_assoc_event(ieee);
1338 
1339                         rtllib_start_send_beacons(ieee);
1340 
1341                         netif_carrier_on(ieee->dev);
1342                 }
1343 
1344                 rtl92e_cam_restore(dev);
1345                 rtl92e_dm_restore_state(dev);
1346 END:
1347                 priv->ResetProgress = RESET_TYPE_NORESET;
1348                 priv->reset_count++;
1349 
1350                 priv->bForcedSilentReset = false;
1351                 priv->bResetInProgress = false;
1352 
1353                 rtl92e_writeb(dev, UFWP, 1);
1354                 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1355                          priv->reset_count);
1356         }
1357 }
1358 
1359 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1360                                     u32 *TotalRxDataNum)
1361 {
1362         u16     SlotIndex;
1363         u8      i;
1364 
1365         *TotalRxBcnNum = 0;
1366         *TotalRxDataNum = 0;
1367 
1368         SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1369                         (priv->rtllib->LinkDetectInfo.SlotNum);
1370         priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1371                         priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1372         priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1373                         priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1374         for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1375                 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1376                 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1377         }
1378 }
1379 
1380 static void _rtl92e_watchdog_wq_cb(void *data)
1381 {
1382         struct r8192_priv *priv = container_of_dwork_rsl(data,
1383                                   struct r8192_priv, watch_dog_wq);
1384         struct net_device *dev = priv->rtllib->dev;
1385         struct rtllib_device *ieee = priv->rtllib;
1386         enum reset_type ResetType = RESET_TYPE_NORESET;
1387         static u8 check_reset_cnt;
1388         unsigned long flags;
1389         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1390                                         (&(priv->rtllib->PowerSaveControl));
1391         bool bBusyTraffic = false;
1392         bool    bHigherBusyTraffic = false;
1393         bool    bHigherBusyRxTraffic = false;
1394         bool bEnterPS = false;
1395 
1396         if (!priv->up || priv->bHwRadioOff)
1397                 return;
1398 
1399         if (priv->rtllib->state >= RTLLIB_LINKED) {
1400                 if (priv->rtllib->CntAfterLink < 2)
1401                         priv->rtllib->CntAfterLink++;
1402         } else {
1403                 priv->rtllib->CntAfterLink = 0;
1404         }
1405 
1406         rtl92e_dm_watchdog(dev);
1407 
1408         if (rtllib_act_scanning(priv->rtllib, false) == false) {
1409                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1410                      RTLLIB_NOLINK) &&
1411                      (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1412                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1413                         if ((ieee->PowerSaveControl.ReturnPoint ==
1414                              IPS_CALLBACK_NONE) &&
1415                              (!ieee->bNetPromiscuousMode)) {
1416                                 RT_TRACE(COMP_PS,
1417                                          "====================>haha: rtl92e_ips_enter()\n");
1418                                 rtl92e_ips_enter(dev);
1419                         }
1420                 }
1421         }
1422         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1423              IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1424                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1425                 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1426                         bBusyTraffic = true;
1427 
1428 
1429                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1430                     ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1431                         bHigherBusyTraffic = true;
1432                         if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1433                                 bHigherBusyRxTraffic = true;
1434                         else
1435                                 bHigherBusyRxTraffic = false;
1436                 }
1437 
1438                 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1439                     ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1440                     (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1441                         bEnterPS = false;
1442                 else
1443                         bEnterPS = true;
1444 
1445                 if (ieee->current_network.beacon_interval < 95)
1446                         bEnterPS = false;
1447 
1448                 if (bEnterPS)
1449                         rtl92e_leisure_ps_enter(dev);
1450                 else
1451                         rtl92e_leisure_ps_leave(dev);
1452 
1453         } else {
1454                 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1455                 rtl92e_leisure_ps_leave(dev);
1456         }
1457 
1458         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1459         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1460         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1461         ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1462 
1463         ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1464         ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1465 
1466         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1467                 u32     TotalRxBcnNum = 0;
1468                 u32     TotalRxDataNum = 0;
1469 
1470                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1471 
1472                 if ((TotalRxBcnNum+TotalRxDataNum) == 0)
1473                         priv->check_roaming_cnt++;
1474                 else
1475                         priv->check_roaming_cnt = 0;
1476 
1477 
1478                 if (priv->check_roaming_cnt > 0) {
1479                         if (ieee->eRFPowerState == eRfOff)
1480                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1481 
1482                         netdev_info(dev,
1483                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1484                                     __func__, priv->chan);
1485 
1486                         ieee->state = RTLLIB_ASSOCIATING;
1487 
1488                         RemovePeerTS(priv->rtllib,
1489                                      priv->rtllib->current_network.bssid);
1490                         ieee->is_roaming = true;
1491                         ieee->is_set_key = false;
1492                         ieee->link_change(dev);
1493                         if (ieee->LedControlHandler)
1494                                 ieee->LedControlHandler(ieee->dev,
1495                                                         LED_CTL_START_TO_LINK);
1496 
1497                         notify_wx_assoc_event(ieee);
1498 
1499                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1500                              (SEC_ALG_CCMP|SEC_ALG_TKIP)))
1501                                 schedule_delayed_work(
1502                                         &ieee->associate_procedure_wq, 0);
1503 
1504                         priv->check_roaming_cnt = 0;
1505                 }
1506                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1507                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1508 
1509         }
1510 
1511         spin_lock_irqsave(&priv->tx_lock, flags);
1512         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1513             (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1514                 ResetType = _rtl92e_if_check_reset(dev);
1515                 check_reset_cnt = 3;
1516         }
1517         spin_unlock_irqrestore(&priv->tx_lock, flags);
1518 
1519         if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1520                 priv->ResetProgress = RESET_TYPE_NORMAL;
1521                 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1522                 return;
1523         }
1524 
1525         if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1526               ResetType == RESET_TYPE_SILENT)))
1527                 _rtl92e_if_silent_reset(dev);
1528         priv->force_reset = false;
1529         priv->bForcedSilentReset = false;
1530         priv->bResetInProgress = false;
1531         RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1532 }
1533 
1534 static void _rtl92e_watchdog_timer_cb(unsigned long data)
1535 {
1536         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
1537 
1538         schedule_delayed_work(&priv->watch_dog_wq, 0);
1539         mod_timer(&priv->watch_dog_timer, jiffies +
1540                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1541 }
1542 
1543 /****************************************************************************
1544  ---------------------------- NIC TX/RX STUFF---------------------------
1545 *****************************************************************************/
1546 void rtl92e_rx_enable(struct net_device *dev)
1547 {
1548         struct r8192_priv *priv = rtllib_priv(dev);
1549 
1550         priv->ops->rx_enable(dev);
1551 }
1552 
1553 void rtl92e_tx_enable(struct net_device *dev)
1554 {
1555         struct r8192_priv *priv = rtllib_priv(dev);
1556 
1557         priv->ops->tx_enable(dev);
1558 
1559         rtllib_reset_queue(priv->rtllib);
1560 }
1561 
1562 
1563 static void _rtl92e_free_rx_ring(struct net_device *dev)
1564 {
1565         struct r8192_priv *priv = rtllib_priv(dev);
1566         int i, rx_queue_idx;
1567 
1568         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1569              rx_queue_idx++) {
1570                 for (i = 0; i < priv->rxringcount; i++) {
1571                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1572 
1573                         if (!skb)
1574                                 continue;
1575 
1576                         pci_unmap_single(priv->pdev,
1577                                 *((dma_addr_t *)skb->cb),
1578                                 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1579                                 kfree_skb(skb);
1580                 }
1581 
1582                 pci_free_consistent(priv->pdev,
1583                         sizeof(*priv->rx_ring[rx_queue_idx]) *
1584                         priv->rxringcount,
1585                         priv->rx_ring[rx_queue_idx],
1586                         priv->rx_ring_dma[rx_queue_idx]);
1587                 priv->rx_ring[rx_queue_idx] = NULL;
1588         }
1589 }
1590 
1591 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1592 {
1593         struct r8192_priv *priv = rtllib_priv(dev);
1594         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1595 
1596         while (skb_queue_len(&ring->queue)) {
1597                 struct tx_desc *entry = &ring->desc[ring->idx];
1598                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1599 
1600                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1601                         skb->len, PCI_DMA_TODEVICE);
1602                 kfree_skb(skb);
1603                 ring->idx = (ring->idx + 1) % ring->entries;
1604         }
1605 
1606         pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
1607         ring->desc, ring->dma);
1608         ring->desc = NULL;
1609 }
1610 
1611 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1612                                    int rate)
1613 {
1614         struct r8192_priv *priv = rtllib_priv(dev);
1615         int ret;
1616         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1617                                     MAX_DEV_ADDR_SIZE);
1618         u8 queue_index = tcb_desc->queue_index;
1619 
1620         if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1621              priv->bResetInProgress) {
1622                 kfree_skb(skb);
1623                 return;
1624         }
1625 
1626         if (queue_index == TXCMD_QUEUE)
1627                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1628                             __func__);
1629 
1630         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1631         skb_push(skb, priv->rtllib->tx_headroom);
1632         ret = _rtl92e_tx(dev, skb);
1633         if (ret != 0)
1634                 kfree_skb(skb);
1635 
1636         if (queue_index != MGNT_QUEUE) {
1637                 priv->rtllib->stats.tx_bytes += (skb->len -
1638                                                  priv->rtllib->tx_headroom);
1639                 priv->rtllib->stats.tx_packets++;
1640         }
1641 }
1642 
1643 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1644 {
1645         struct r8192_priv *priv = rtllib_priv(dev);
1646         int ret;
1647         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1648                                     MAX_DEV_ADDR_SIZE);
1649         u8 queue_index = tcb_desc->queue_index;
1650 
1651         if (queue_index != TXCMD_QUEUE) {
1652                 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1653                      !priv->up || priv->bResetInProgress) {
1654                         kfree_skb(skb);
1655                         return 0;
1656                 }
1657         }
1658 
1659         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1660         if (queue_index == TXCMD_QUEUE) {
1661                 _rtl92e_tx_cmd(dev, skb);
1662                 return 0;
1663         }
1664 
1665         tcb_desc->RATRIndex = 7;
1666         tcb_desc->bTxDisableRateFallBack = 1;
1667         tcb_desc->bTxUseDriverAssingedRate = 1;
1668         tcb_desc->bTxEnableFwCalcDur = 1;
1669         skb_push(skb, priv->rtllib->tx_headroom);
1670         ret = _rtl92e_tx(dev, skb);
1671         if (ret != 0)
1672                 kfree_skb(skb);
1673         return ret;
1674 }
1675 
1676 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1677 {
1678         struct r8192_priv *priv = rtllib_priv(dev);
1679 
1680         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1681 
1682         while (skb_queue_len(&ring->queue)) {
1683                 struct tx_desc *entry = &ring->desc[ring->idx];
1684                 struct sk_buff *skb;
1685 
1686                 if (prio != BEACON_QUEUE) {
1687                         if (entry->OWN)
1688                                 return;
1689                         ring->idx = (ring->idx + 1) % ring->entries;
1690                 }
1691 
1692                 skb = __skb_dequeue(&ring->queue);
1693                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1694                 skb->len, PCI_DMA_TODEVICE);
1695 
1696                 kfree_skb(skb);
1697         }
1698         if (prio != BEACON_QUEUE)
1699                 tasklet_schedule(&priv->irq_tx_tasklet);
1700 }
1701 
1702 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1703 {
1704         struct r8192_priv *priv = rtllib_priv(dev);
1705         struct rtl8192_tx_ring *ring;
1706         struct tx_desc_cmd *entry;
1707         unsigned int idx;
1708         struct cb_desc *tcb_desc;
1709         unsigned long flags;
1710 
1711         spin_lock_irqsave(&priv->irq_th_lock, flags);
1712         ring = &priv->tx_ring[TXCMD_QUEUE];
1713 
1714         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1715         entry = (struct tx_desc_cmd *) &ring->desc[idx];
1716 
1717         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1718 
1719         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1720 
1721         __skb_queue_tail(&ring->queue, skb);
1722         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1723 }
1724 
1725 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1726 {
1727         struct r8192_priv *priv = rtllib_priv(dev);
1728         struct rtl8192_tx_ring  *ring;
1729         unsigned long flags;
1730         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1731                                     MAX_DEV_ADDR_SIZE);
1732         struct tx_desc *pdesc = NULL;
1733         struct rtllib_hdr_1addr *header = NULL;
1734         u16 fc = 0, type = 0, stype = 0;
1735         bool  multi_addr = false, broad_addr = false, uni_addr = false;
1736         u8 *pda_addr = NULL;
1737         int   idx;
1738         u32 fwinfo_size = 0;
1739 
1740         if (priv->bdisable_nic) {
1741                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1742                             __func__);
1743                 return skb->len;
1744         }
1745 
1746         priv->rtllib->bAwakePktSent = true;
1747 
1748         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1749 
1750         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1751         fc = le16_to_cpu(header->frame_ctl);
1752         type = WLAN_FC_GET_TYPE(fc);
1753         stype = WLAN_FC_GET_STYPE(fc);
1754         pda_addr = header->addr1;
1755 
1756         if (is_broadcast_ether_addr(pda_addr))
1757                 broad_addr = true;
1758         else if (is_multicast_ether_addr(pda_addr))
1759                 multi_addr = true;
1760         else
1761                 uni_addr = true;
1762 
1763         if (uni_addr)
1764                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1765         else if (multi_addr)
1766                 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1767         else
1768                 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1769 
1770         spin_lock_irqsave(&priv->irq_th_lock, flags);
1771         ring = &priv->tx_ring[tcb_desc->queue_index];
1772         if (tcb_desc->queue_index != BEACON_QUEUE)
1773                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1774         else
1775                 idx = 0;
1776 
1777         pdesc = &ring->desc[idx];
1778         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1779                 netdev_warn(dev,
1780                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1781                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1782                             skb_queue_len(&ring->queue));
1783                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1784                 return skb->len;
1785         }
1786 
1787         if (type == RTLLIB_FTYPE_DATA) {
1788                 if (priv->rtllib->LedControlHandler)
1789                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1790         }
1791         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1792         __skb_queue_tail(&ring->queue, skb);
1793         pdesc->OWN = 1;
1794         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1795         netif_trans_update(dev);
1796 
1797         rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1798         return 0;
1799 }
1800 
1801 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1802 {
1803         struct r8192_priv *priv = rtllib_priv(dev);
1804         struct rx_desc *entry = NULL;
1805         int i, rx_queue_idx;
1806 
1807         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1808                 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1809                                               sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1810                                               &priv->rx_ring_dma[rx_queue_idx]);
1811                 if (!priv->rx_ring[rx_queue_idx] ||
1812                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1813                         netdev_warn(dev, "Cannot allocate RX ring\n");
1814                         return -ENOMEM;
1815                 }
1816 
1817                 priv->rx_idx[rx_queue_idx] = 0;
1818 
1819                 for (i = 0; i < priv->rxringcount; i++) {
1820                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1821                         dma_addr_t *mapping;
1822 
1823                         entry = &priv->rx_ring[rx_queue_idx][i];
1824                         if (!skb)
1825                                 return 0;
1826                         skb->dev = dev;
1827                         priv->rx_buf[rx_queue_idx][i] = skb;
1828                         mapping = (dma_addr_t *)skb->cb;
1829                         *mapping = pci_map_single(priv->pdev,
1830                                                   skb_tail_pointer_rsl(skb),
1831                                                   priv->rxbuffersize,
1832                                                   PCI_DMA_FROMDEVICE);
1833                         if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1834                                 dev_kfree_skb_any(skb);
1835                                 return -1;
1836                         }
1837                         entry->BufferAddress = *mapping;
1838 
1839                         entry->Length = priv->rxbuffersize;
1840                         entry->OWN = 1;
1841                 }
1842 
1843                 if (entry)
1844                         entry->EOR = 1;
1845         }
1846         return 0;
1847 }
1848 
1849 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1850                                  unsigned int entries)
1851 {
1852         struct r8192_priv *priv = rtllib_priv(dev);
1853         struct tx_desc *ring;
1854         dma_addr_t dma;
1855         int i;
1856 
1857         ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1858         if (!ring || (unsigned long)ring & 0xFF) {
1859                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1860                 return -ENOMEM;
1861         }
1862 
1863         priv->tx_ring[prio].desc = ring;
1864         priv->tx_ring[prio].dma = dma;
1865         priv->tx_ring[prio].idx = 0;
1866         priv->tx_ring[prio].entries = entries;
1867         skb_queue_head_init(&priv->tx_ring[prio].queue);
1868 
1869         for (i = 0; i < entries; i++)
1870                 ring[i].NextDescAddress =
1871                         (u32)dma + ((i + 1) % entries) *
1872                         sizeof(*ring);
1873 
1874         return 0;
1875 }
1876 
1877 static short _rtl92e_pci_initdescring(struct net_device *dev)
1878 {
1879         u32 ret;
1880         int i;
1881         struct r8192_priv *priv = rtllib_priv(dev);
1882 
1883         ret = _rtl92e_alloc_rx_ring(dev);
1884         if (ret)
1885                 return ret;
1886 
1887         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1888                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1889                 if (ret)
1890                         goto err_free_rings;
1891         }
1892 
1893         return 0;
1894 
1895 err_free_rings:
1896         _rtl92e_free_rx_ring(dev);
1897         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1898                 if (priv->tx_ring[i].desc)
1899                         _rtl92e_free_tx_ring(dev, i);
1900         return 1;
1901 }
1902 
1903 void rtl92e_reset_desc_ring(struct net_device *dev)
1904 {
1905         struct r8192_priv *priv = rtllib_priv(dev);
1906         int i, rx_queue_idx;
1907         unsigned long flags = 0;
1908 
1909         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1910                 if (priv->rx_ring[rx_queue_idx]) {
1911                         struct rx_desc *entry = NULL;
1912 
1913                         for (i = 0; i < priv->rxringcount; i++) {
1914                                 entry = &priv->rx_ring[rx_queue_idx][i];
1915                                 entry->OWN = 1;
1916                         }
1917                         priv->rx_idx[rx_queue_idx] = 0;
1918                 }
1919         }
1920 
1921         spin_lock_irqsave(&priv->irq_th_lock, flags);
1922         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1923                 if (priv->tx_ring[i].desc) {
1924                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1925 
1926                         while (skb_queue_len(&ring->queue)) {
1927                                 struct tx_desc *entry = &ring->desc[ring->idx];
1928                                 struct sk_buff *skb =
1929                                                  __skb_dequeue(&ring->queue);
1930 
1931                                 pci_unmap_single(priv->pdev,
1932                                                  entry->TxBuffAddr,
1933                                                  skb->len, PCI_DMA_TODEVICE);
1934                                 kfree_skb(skb);
1935                                 ring->idx = (ring->idx + 1) % ring->entries;
1936                         }
1937                         ring->idx = 0;
1938                 }
1939         }
1940         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1941 }
1942 
1943 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1944                                     struct rtllib_rx_stats *stats)
1945 {
1946         struct r8192_priv *priv = rtllib_priv(dev);
1947 
1948         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1949                 stats->mac_time = priv->LastRxDescTSF;
1950         else
1951                 priv->LastRxDescTSF = stats->mac_time;
1952 }
1953 
1954 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1955 {
1956         long    signal_power;
1957 
1958         signal_power = (long)((signal_strength_index + 1) >> 1);
1959         signal_power -= 95;
1960 
1961         return signal_power;
1962 }
1963 
1964 
1965 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1966                                  struct rtllib_rx_stats *pprevious_stats)
1967 {
1968         int weighting = 0;
1969 
1970 
1971         if (priv->stats.recv_signal_power == 0)
1972                 priv->stats.recv_signal_power =
1973                                          pprevious_stats->RecvSignalPower;
1974 
1975         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1976                 weighting = 5;
1977         else if (pprevious_stats->RecvSignalPower <
1978                  priv->stats.recv_signal_power)
1979                 weighting = (-5);
1980         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1981                                         pprevious_stats->RecvSignalPower +
1982                                         weighting) / 6;
1983 }
1984 
1985 u8 rtl92e_rx_db_to_percent(char antpower)
1986 {
1987         if ((antpower <= -100) || (antpower >= 20))
1988                 return  0;
1989         else if (antpower >= 0)
1990                 return  100;
1991         else
1992                 return  100 + antpower;
1993 
1994 }       /* QueryRxPwrPercentage */
1995 
1996 u8 rtl92e_evm_db_to_percent(char value)
1997 {
1998         char ret_val;
1999 
2000         ret_val = value;
2001 
2002         if (ret_val >= 0)
2003                 ret_val = 0;
2004         if (ret_val <= -33)
2005                 ret_val = -33;
2006         ret_val = 0 - ret_val;
2007         ret_val *= 3;
2008         if (ret_val == 99)
2009                 ret_val = 100;
2010         return ret_val;
2011 }
2012 
2013 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2014                             struct rtllib_rx_stats *ptarget_stats)
2015 {
2016         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2017         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2018 }
2019 
2020 
2021 
2022 static void _rtl92e_rx_normal(struct net_device *dev)
2023 {
2024         struct r8192_priv *priv = rtllib_priv(dev);
2025         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2026         bool unicast_packet = false;
2027         bool bLedBlinking = true;
2028         u16 fc = 0, type = 0;
2029         u32 skb_len = 0;
2030         int rx_queue_idx = RX_MPDU_QUEUE;
2031 
2032         struct rtllib_rx_stats stats = {
2033                 .signal = 0,
2034                 .noise = (u8) -98,
2035                 .rate = 0,
2036                 .freq = RTLLIB_24GHZ_BAND,
2037         };
2038         unsigned int count = priv->rxringcount;
2039 
2040         stats.nic_type = NIC_8192E;
2041 
2042         while (count--) {
2043                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2044                                         [priv->rx_idx[rx_queue_idx]];
2045                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2046                                       [priv->rx_idx[rx_queue_idx]];
2047                 struct sk_buff *new_skb;
2048 
2049                 if (pdesc->OWN)
2050                         return;
2051                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2052                 pdesc, skb))
2053                         goto done;
2054                 new_skb = dev_alloc_skb(priv->rxbuffersize);
2055                 /* if allocation of new skb failed - drop current packet
2056                  * and reuse skb
2057                  */
2058                 if (unlikely(!new_skb))
2059                         goto done;
2060 
2061                 pci_unmap_single(priv->pdev,
2062                                 *((dma_addr_t *)skb->cb),
2063                                 priv->rxbuffersize,
2064                                 PCI_DMA_FROMDEVICE);
2065 
2066                 skb_put(skb, pdesc->Length);
2067                 skb_reserve(skb, stats.RxDrvInfoSize +
2068                         stats.RxBufShift);
2069                 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2070                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2071                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2072                         /* unicast packet */
2073                         unicast_packet = true;
2074                 }
2075                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2076                 type = WLAN_FC_GET_TYPE(fc);
2077                 if (type == RTLLIB_FTYPE_MGMT)
2078                         bLedBlinking = false;
2079 
2080                 if (bLedBlinking)
2081                         if (priv->rtllib->LedControlHandler)
2082                                 priv->rtllib->LedControlHandler(dev,
2083                                                         LED_CTL_RX);
2084 
2085                 if (stats.bCRC) {
2086                         if (type != RTLLIB_FTYPE_MGMT)
2087                                 priv->stats.rxdatacrcerr++;
2088                         else
2089                                 priv->stats.rxmgmtcrcerr++;
2090                 }
2091 
2092                 skb_len = skb->len;
2093 
2094                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2095                         dev_kfree_skb_any(skb);
2096                 } else {
2097                         priv->stats.rxok++;
2098                         if (unicast_packet)
2099                                 priv->stats.rxbytesunicast += skb_len;
2100                 }
2101 
2102                 skb = new_skb;
2103                 skb->dev = dev;
2104 
2105                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2106                                                                  skb;
2107                 *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
2108                                             skb_tail_pointer_rsl(skb),
2109                                             priv->rxbuffersize,
2110                                             PCI_DMA_FROMDEVICE);
2111                 if (pci_dma_mapping_error(priv->pdev,
2112                                           *((dma_addr_t *)skb->cb))) {
2113                         dev_kfree_skb_any(skb);
2114                         return;
2115                 }
2116 done:
2117                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2118                 pdesc->OWN = 1;
2119                 pdesc->Length = priv->rxbuffersize;
2120                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
2121                         pdesc->EOR = 1;
2122                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2123                                               priv->rxringcount;
2124         }
2125 
2126 }
2127 
2128 static void _rtl92e_tx_resume(struct net_device *dev)
2129 {
2130         struct r8192_priv *priv = rtllib_priv(dev);
2131         struct rtllib_device *ieee = priv->rtllib;
2132         struct sk_buff *skb;
2133         int queue_index;
2134 
2135         for (queue_index = BK_QUEUE;
2136              queue_index < MAX_QUEUE_SIZE; queue_index++) {
2137                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2138                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2139                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2140                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2141                 }
2142         }
2143 }
2144 
2145 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2146 {
2147         _rtl92e_tx_resume(priv->rtllib->dev);
2148 }
2149 
2150 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2151 {
2152         _rtl92e_rx_normal(priv->rtllib->dev);
2153 
2154         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2155                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2156 }
2157 
2158 /****************************************************************************
2159  ---------------------------- NIC START/CLOSE STUFF---------------------------
2160 *****************************************************************************/
2161 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2162 {
2163         cancel_delayed_work_sync(&priv->watch_dog_wq);
2164         cancel_delayed_work_sync(&priv->update_beacon_wq);
2165         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2166         cancel_work_sync(&priv->reset_wq);
2167         cancel_work_sync(&priv->qos_activate);
2168 }
2169 
2170 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2171 {
2172         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2173                 return -1;
2174         return 0;
2175 }
2176 
2177 static int _rtl92e_open(struct net_device *dev)
2178 {
2179         struct r8192_priv *priv = rtllib_priv(dev);
2180         int ret;
2181 
2182         down(&priv->wx_sem);
2183         ret = _rtl92e_try_up(dev);
2184         up(&priv->wx_sem);
2185         return ret;
2186 
2187 }
2188 
2189 static int _rtl92e_try_up(struct net_device *dev)
2190 {
2191         struct r8192_priv *priv = rtllib_priv(dev);
2192 
2193         if (priv->up == 1)
2194                 return -1;
2195         return _rtl92e_up(dev, false);
2196 }
2197 
2198 
2199 static int _rtl92e_close(struct net_device *dev)
2200 {
2201         struct r8192_priv *priv = rtllib_priv(dev);
2202         int ret;
2203 
2204         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2205                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2206                 rtllib_stop_scan(priv->rtllib);
2207         }
2208 
2209         down(&priv->wx_sem);
2210 
2211         ret = _rtl92e_down(dev, true);
2212 
2213         up(&priv->wx_sem);
2214 
2215         return ret;
2216 
2217 }
2218 
2219 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2220 {
2221         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2222                 return -1;
2223 
2224         return 0;
2225 }
2226 
2227 void rtl92e_commit(struct net_device *dev)
2228 {
2229         struct r8192_priv *priv = rtllib_priv(dev);
2230 
2231         if (priv->up == 0)
2232                 return;
2233         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2234         rtl92e_irq_disable(dev);
2235         priv->ops->stop_adapter(dev, true);
2236         _rtl92e_up(dev, false);
2237 }
2238 
2239 static void _rtl92e_restart(void *data)
2240 {
2241         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2242                                   reset_wq);
2243         struct net_device *dev = priv->rtllib->dev;
2244 
2245         down(&priv->wx_sem);
2246 
2247         rtl92e_commit(dev);
2248 
2249         up(&priv->wx_sem);
2250 }
2251 
2252 static void _rtl92e_set_multicast(struct net_device *dev)
2253 {
2254         struct r8192_priv *priv = rtllib_priv(dev);
2255         short promisc;
2256 
2257         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2258         priv->promisc = promisc;
2259 
2260 }
2261 
2262 
2263 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2264 {
2265         struct r8192_priv *priv = rtllib_priv(dev);
2266         struct sockaddr *addr = mac;
2267 
2268         down(&priv->wx_sem);
2269 
2270         ether_addr_copy(dev->dev_addr, addr->sa_data);
2271 
2272         schedule_work(&priv->reset_wq);
2273         up(&priv->wx_sem);
2274 
2275         return 0;
2276 }
2277 
2278 /* based on ipw2200 driver */
2279 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2280 {
2281         struct r8192_priv *priv = rtllib_priv(dev);
2282         struct iwreq *wrq = (struct iwreq *)rq;
2283         int ret = -1;
2284         struct rtllib_device *ieee = priv->rtllib;
2285         u32 key[4];
2286         const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2287         struct iw_point *p = &wrq->u.data;
2288         struct ieee_param *ipw = NULL;
2289 
2290         down(&priv->wx_sem);
2291 
2292         switch (cmd) {
2293         case RTL_IOCTL_WPA_SUPPLICANT:
2294                 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
2295                         ret = -EINVAL;
2296                         goto out;
2297                 }
2298 
2299                 ipw = memdup_user(p->pointer, p->length);
2300                 if (IS_ERR(ipw)) {
2301                         ret = PTR_ERR(ipw);
2302                         goto out;
2303                 }
2304 
2305                 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
2306                         if (ipw->u.crypt.set_tx) {
2307                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2308                                         ieee->pairwise_key_type = KEY_TYPE_CCMP;
2309                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2310                                         ieee->pairwise_key_type = KEY_TYPE_TKIP;
2311                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2312                                         if (ipw->u.crypt.key_len == 13)
2313                                                 ieee->pairwise_key_type =
2314                                                          KEY_TYPE_WEP104;
2315                                         else if (ipw->u.crypt.key_len == 5)
2316                                                 ieee->pairwise_key_type =
2317                                                          KEY_TYPE_WEP40;
2318                                 } else {
2319                                         ieee->pairwise_key_type = KEY_TYPE_NA;
2320                                 }
2321 
2322                                 if (ieee->pairwise_key_type) {
2323                                         if (is_zero_ether_addr(ieee->ap_mac_addr))
2324                                                 ieee->iw_mode = IW_MODE_ADHOC;
2325                                         memcpy((u8 *)key, ipw->u.crypt.key, 16);
2326                                         rtl92e_enable_hw_security_config(dev);
2327                                         rtl92e_set_swcam(dev, 4,
2328                                                          ipw->u.crypt.idx,
2329                                                          ieee->pairwise_key_type,
2330                                                          (u8 *)ieee->ap_mac_addr,
2331                                                          0, key, 0);
2332                                         rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
2333                                                        ieee->pairwise_key_type,
2334                                                        (u8 *)ieee->ap_mac_addr,
2335                                                        0, key);
2336                                         if (ieee->iw_mode == IW_MODE_ADHOC) {
2337                                                 rtl92e_set_swcam(dev,
2338                                                                  ipw->u.crypt.idx,
2339                                                                  ipw->u.crypt.idx,
2340                                                                  ieee->pairwise_key_type,
2341                                                                  (u8 *)ieee->ap_mac_addr,
2342                                                                  0, key, 0);
2343                                                 rtl92e_set_key(dev,
2344                                                                ipw->u.crypt.idx,
2345                                                                ipw->u.crypt.idx,
2346                                                                ieee->pairwise_key_type,
2347                                                                (u8 *)ieee->ap_mac_addr,
2348                                                                0, key);
2349                                         }
2350                                 }
2351                                 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
2352                                      && ieee->pHTInfo->bCurrentHTSupport) {
2353                                         rtl92e_writeb(dev, 0x173, 1);
2354                                 }
2355 
2356                         } else {
2357                                 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2358                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2359                                         ieee->group_key_type = KEY_TYPE_CCMP;
2360                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2361                                         ieee->group_key_type = KEY_TYPE_TKIP;
2362                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2363                                         if (ipw->u.crypt.key_len == 13)
2364                                                 ieee->group_key_type =
2365                                                          KEY_TYPE_WEP104;
2366                                         else if (ipw->u.crypt.key_len == 5)
2367                                                 ieee->group_key_type =
2368                                                          KEY_TYPE_WEP40;
2369                                 } else
2370                                         ieee->group_key_type = KEY_TYPE_NA;
2371 
2372                                 if (ieee->group_key_type) {
2373                                         rtl92e_set_swcam(dev, ipw->u.crypt.idx,
2374                                                          ipw->u.crypt.idx,
2375                                                          ieee->group_key_type,
2376                                                          broadcast_addr, 0, key,
2377                                                          0);
2378                                         rtl92e_set_key(dev, ipw->u.crypt.idx,
2379                                                        ipw->u.crypt.idx,
2380                                                        ieee->group_key_type,
2381                                                        broadcast_addr, 0, key);
2382                                 }
2383                         }
2384                 }
2385 
2386                 ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
2387                                                   0);
2388                 kfree(ipw);
2389                 break;
2390         default:
2391                 ret = -EOPNOTSUPP;
2392                 break;
2393         }
2394 
2395 out:
2396         up(&priv->wx_sem);
2397 
2398         return ret;
2399 }
2400 
2401 
2402 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2403 {
2404         struct net_device *dev = netdev;
2405         struct r8192_priv *priv = rtllib_priv(dev);
2406         unsigned long flags;
2407         u32 inta;
2408         u32 intb;
2409 
2410         intb = 0;
2411 
2412         if (priv->irq_enabled == 0)
2413                 goto done;
2414 
2415         spin_lock_irqsave(&priv->irq_th_lock, flags);
2416 
2417         priv->ops->interrupt_recognized(dev, &inta, &intb);
2418         priv->stats.shints++;
2419 
2420         if (!inta) {
2421                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2422                 goto done;
2423         }
2424 
2425         if (inta == 0xffff) {
2426                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2427                 goto done;
2428         }
2429 
2430         priv->stats.ints++;
2431 
2432         if (!netif_running(dev)) {
2433                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2434                 goto done;
2435         }
2436 
2437         if (inta & IMR_TBDOK) {
2438                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2439                 priv->stats.txbeaconokint++;
2440         }
2441 
2442         if (inta & IMR_TBDER) {
2443                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2444                 priv->stats.txbeaconerr++;
2445         }
2446 
2447         if (inta & IMR_BDOK)
2448                 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2449 
2450         if (inta  & IMR_MGNTDOK) {
2451                 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2452                 priv->stats.txmanageokint++;
2453                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2454                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2455                 if (priv->rtllib->ack_tx_to_ieee) {
2456                         if (_rtl92e_is_tx_queue_empty(dev)) {
2457                                 priv->rtllib->ack_tx_to_ieee = 0;
2458                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2459                         }
2460                 }
2461                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2462         }
2463 
2464         if (inta & IMR_COMDOK) {
2465                 priv->stats.txcmdpktokint++;
2466                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2467         }
2468 
2469         if (inta & IMR_HIGHDOK)
2470                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2471 
2472         if (inta & IMR_ROK) {
2473                 priv->stats.rxint++;
2474                 priv->InterruptLog.nIMR_ROK++;
2475                 tasklet_schedule(&priv->irq_rx_tasklet);
2476         }
2477 
2478         if (inta & IMR_BcnInt) {
2479                 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2480                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2481         }
2482 
2483         if (inta & IMR_RDU) {
2484                 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2485                 priv->stats.rxrdu++;
2486                 rtl92e_writel(dev, INTA_MASK,
2487                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2488                 tasklet_schedule(&priv->irq_rx_tasklet);
2489         }
2490 
2491         if (inta & IMR_RXFOVW) {
2492                 RT_TRACE(COMP_INTR, "rx overflow !\n");
2493                 priv->stats.rxoverflow++;
2494                 tasklet_schedule(&priv->irq_rx_tasklet);
2495         }
2496 
2497         if (inta & IMR_TXFOVW)
2498                 priv->stats.txoverflow++;
2499 
2500         if (inta & IMR_BKDOK) {
2501                 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2502                 priv->stats.txbkokint++;
2503                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2504                 _rtl92e_tx_isr(dev, BK_QUEUE);
2505         }
2506 
2507         if (inta & IMR_BEDOK) {
2508                 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2509                 priv->stats.txbeokint++;
2510                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2511                 _rtl92e_tx_isr(dev, BE_QUEUE);
2512         }
2513 
2514         if (inta & IMR_VIDOK) {
2515                 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2516                 priv->stats.txviokint++;
2517                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2518                 _rtl92e_tx_isr(dev, VI_QUEUE);
2519         }
2520 
2521         if (inta & IMR_VODOK) {
2522                 priv->stats.txvookint++;
2523                 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2524                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2525                 _rtl92e_tx_isr(dev, VO_QUEUE);
2526         }
2527 
2528         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2529 
2530 done:
2531 
2532         return IRQ_HANDLED;
2533 }
2534 
2535 
2536 
2537 /****************************************************************************
2538         ---------------------------- PCI_STUFF---------------------------
2539 *****************************************************************************/
2540 static const struct net_device_ops rtl8192_netdev_ops = {
2541         .ndo_open = _rtl92e_open,
2542         .ndo_stop = _rtl92e_close,
2543         .ndo_tx_timeout = _rtl92e_tx_timeout,
2544         .ndo_do_ioctl = _rtl92e_ioctl,
2545         .ndo_set_rx_mode = _rtl92e_set_multicast,
2546         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2547         .ndo_validate_addr = eth_validate_addr,
2548         .ndo_change_mtu = eth_change_mtu,
2549         .ndo_start_xmit = rtllib_xmit,
2550 };
2551 
2552 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2553                              const struct pci_device_id *id)
2554 {
2555         unsigned long ioaddr = 0;
2556         struct net_device *dev = NULL;
2557         struct r8192_priv *priv = NULL;
2558         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2559         unsigned long pmem_start, pmem_len, pmem_flags;
2560         int err = -ENOMEM;
2561         u8 revision_id;
2562 
2563         RT_TRACE(COMP_INIT, "Configuring chip resources");
2564 
2565         if (pci_enable_device(pdev)) {
2566                 dev_err(&pdev->dev, "Failed to enable PCI device");
2567                 return -EIO;
2568         }
2569 
2570         pci_set_master(pdev);
2571 
2572         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2573                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2574                         dev_info(&pdev->dev,
2575                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2576                         goto err_pci_disable;
2577                 }
2578         }
2579         dev = alloc_rtllib(sizeof(struct r8192_priv));
2580         if (!dev)
2581                 goto err_pci_disable;
2582 
2583         err = -ENODEV;
2584 
2585         pci_set_drvdata(pdev, dev);
2586         SET_NETDEV_DEV(dev, &pdev->dev);
2587         priv = rtllib_priv(dev);
2588         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2589         priv->pdev = pdev;
2590         priv->rtllib->pdev = pdev;
2591         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2592             (pdev->subsystem_device == 0x3304))
2593                 priv->rtllib->bSupportRemoteWakeUp = 1;
2594         else
2595                 priv->rtllib->bSupportRemoteWakeUp = 0;
2596 
2597         pmem_start = pci_resource_start(pdev, 1);
2598         pmem_len = pci_resource_len(pdev, 1);
2599         pmem_flags = pci_resource_flags(pdev, 1);
2600 
2601         if (!(pmem_flags & IORESOURCE_MEM)) {
2602                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2603                 goto err_rel_rtllib;
2604         }
2605 
2606         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2607                  pmem_start);
2608         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2609                 netdev_err(dev, "request_mem_region failed!");
2610                 goto err_rel_rtllib;
2611         }
2612 
2613 
2614         ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2615         if (ioaddr == (unsigned long)NULL) {
2616                 netdev_err(dev, "ioremap failed!");
2617                 goto err_rel_mem;
2618         }
2619 
2620         dev->mem_start = ioaddr;
2621         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2622 
2623         pci_read_config_byte(pdev, 0x08, &revision_id);
2624         /* If the revisionid is 0x10, the device uses rtl8192se. */
2625         if (pdev->device == 0x8192 && revision_id == 0x10)
2626                 goto err_unmap;
2627 
2628         priv->ops = ops;
2629 
2630         if (rtl92e_check_adapter(pdev, dev) == false)
2631                 goto err_unmap;
2632 
2633         dev->irq = pdev->irq;
2634         priv->irq = 0;
2635 
2636         dev->netdev_ops = &rtl8192_netdev_ops;
2637 
2638         dev->wireless_handlers = &r8192_wx_handlers_def;
2639         dev->ethtool_ops = &rtl819x_ethtool_ops;
2640 
2641         dev->type = ARPHRD_ETHER;
2642         dev->watchdog_timeo = HZ * 3;
2643 
2644         if (dev_alloc_name(dev, ifname) < 0) {
2645                 RT_TRACE(COMP_INIT,
2646                          "Oops: devname already taken! Trying wlan%%d...\n");
2647                         dev_alloc_name(dev, ifname);
2648         }
2649 
2650         RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2651         if (_rtl92e_init(dev) != 0) {
2652                 netdev_warn(dev, "Initialization failed");
2653                 goto err_free_irq;
2654         }
2655 
2656         netif_carrier_off(dev);
2657         netif_stop_queue(dev);
2658 
2659         if (register_netdev(dev))
2660                 goto err_free_irq;
2661         RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2662 
2663         if (priv->polling_timer_on == 0)
2664                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
2665 
2666         RT_TRACE(COMP_INIT, "Driver probe completed\n");
2667         return 0;
2668 
2669 err_free_irq:
2670         free_irq(dev->irq, dev);
2671         priv->irq = 0;
2672 err_unmap:
2673         iounmap((void __iomem *)ioaddr);
2674 err_rel_mem:
2675         release_mem_region(pmem_start, pmem_len);
2676 err_rel_rtllib:
2677         free_rtllib(dev);
2678 err_pci_disable:
2679         pci_disable_device(pdev);
2680         return err;
2681 }
2682 
2683 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2684 {
2685         struct net_device *dev = pci_get_drvdata(pdev);
2686         struct r8192_priv *priv;
2687         u32 i;
2688 
2689         if (dev) {
2690                 unregister_netdev(dev);
2691 
2692                 priv = rtllib_priv(dev);
2693 
2694                 del_timer_sync(&priv->gpio_polling_timer);
2695                 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2696                 priv->polling_timer_on = 0;
2697                 _rtl92e_down(dev, true);
2698                 rtl92e_dm_deinit(dev);
2699                 if (priv->pFirmware) {
2700                         vfree(priv->pFirmware);
2701                         priv->pFirmware = NULL;
2702                 }
2703                 _rtl92e_free_rx_ring(dev);
2704                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2705                         _rtl92e_free_tx_ring(dev, i);
2706 
2707                 if (priv->irq) {
2708                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2709                         free_irq(dev->irq, dev);
2710                         priv->irq = 0;
2711                 }
2712                 free_rtllib(dev);
2713 
2714                 if (dev->mem_start != 0) {
2715                         iounmap((void __iomem *)dev->mem_start);
2716                         release_mem_region(pci_resource_start(pdev, 1),
2717                                         pci_resource_len(pdev, 1));
2718                 }
2719         } else {
2720                 priv = rtllib_priv(dev);
2721         }
2722 
2723         pci_disable_device(pdev);
2724         RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2725 }
2726 
2727 bool rtl92e_enable_nic(struct net_device *dev)
2728 {
2729         bool init_status = true;
2730         struct r8192_priv *priv = rtllib_priv(dev);
2731         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2732                                         (&(priv->rtllib->PowerSaveControl));
2733 
2734         if (!priv->up) {
2735                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2736                 priv->bdisable_nic = false;
2737                 return false;
2738         }
2739 
2740         RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2741         priv->bfirst_init = true;
2742         init_status = priv->ops->initialize_adapter(dev);
2743         if (!init_status) {
2744                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2745                 priv->bdisable_nic = false;
2746                 return false;
2747         }
2748         RT_TRACE(COMP_INIT, "start adapter finished\n");
2749         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2750         priv->bfirst_init = false;
2751 
2752         rtl92e_irq_enable(dev);
2753         priv->bdisable_nic = false;
2754         RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2755         return init_status;
2756 }
2757 bool rtl92e_disable_nic(struct net_device *dev)
2758 {
2759         struct r8192_priv *priv = rtllib_priv(dev);
2760         u8 tmp_state = 0;
2761 
2762         RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2763         priv->bdisable_nic = true;
2764         tmp_state = priv->rtllib->state;
2765         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2766         priv->rtllib->state = tmp_state;
2767         _rtl92e_cancel_deferred_work(priv);
2768         rtl92e_irq_disable(dev);
2769 
2770         priv->ops->stop_adapter(dev, false);
2771         RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2772 
2773         return true;
2774 }
2775 
2776 module_pci_driver(rtl8192_pci_driver);
2777 
2778 void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
2779 {
2780         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
2781 
2782         priv->polling_timer_on = 1;
2783 
2784         schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2785 
2786         mod_timer(&priv->gpio_polling_timer, jiffies +
2787                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2788 }
2789 
2790 /***************************************************************************
2791         ------------------- module init / exit stubs ----------------
2792 ****************************************************************************/
2793 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2794 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2795 MODULE_VERSION(DRV_VERSION);
2796 MODULE_LICENSE("GPL");
2797 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2798 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2799 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2800 
2801 module_param(ifname, charp, S_IRUGO|S_IWUSR);
2802 module_param(hwwep, int, S_IRUGO|S_IWUSR);
2803 module_param(channels, int, S_IRUGO|S_IWUSR);
2804 
2805 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2806 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2807 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2808 

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