Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 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

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                                 queue_delayed_work_rsl(ieee->wq,
253                                          &ieee->associate_procedure_wq, 0);
254                                 priv->blinked_ingpio = false;
255                         }
256                 }
257         } else {
258                 RT_TRACE((COMP_PS | COMP_RF),
259                          "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
260                          StateToSet, ChangeSource, priv->rtllib->RfOffReason);
261         }
262 
263         spin_lock_irqsave(&priv->rf_ps_lock, flag);
264         priv->RFChangeInProgress = false;
265         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
266 
267         RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
268         return bActionAllowed;
269 }
270 
271 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
272 {
273         struct r8192_priv *priv = rtllib_priv(dev);
274         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
275 
276         if (ring->entries - skb_queue_len(&ring->queue) >= 2)
277                 return 1;
278         return 0;
279 }
280 
281 static void _rtl92e_tx_timeout(struct net_device *dev)
282 {
283         struct r8192_priv *priv = rtllib_priv(dev);
284 
285         schedule_work(&priv->reset_wq);
286         netdev_info(dev, "TXTIMEOUT");
287 }
288 
289 void rtl92e_irq_enable(struct net_device *dev)
290 {
291         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
292 
293         priv->irq_enabled = 1;
294 
295         priv->ops->irq_enable(dev);
296 }
297 
298 void rtl92e_irq_disable(struct net_device *dev)
299 {
300         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
301 
302         priv->ops->irq_disable(dev);
303 
304         priv->irq_enabled = 0;
305 }
306 
307 static void _rtl92e_set_chan(struct net_device *dev, short ch)
308 {
309         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
310 
311         RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
312         if (priv->chan_forced)
313                 return;
314 
315         priv->chan = ch;
316 
317         if (priv->rf_set_chan)
318                 priv->rf_set_chan(dev, priv->chan);
319 }
320 
321 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
322 {
323         struct r8192_priv *priv = rtllib_priv(dev);
324         struct rtllib_network *net = &priv->rtllib->current_network;
325         bool            ShortPreamble;
326 
327         if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
328                 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
329                         ShortPreamble = true;
330                         priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
331                         RT_TRACE(COMP_DBG,
332                                  "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
333                                  __func__);
334                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
335                                         (unsigned char *)&ShortPreamble);
336                 }
337         } else {
338                 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
339                         ShortPreamble = false;
340                         priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
341                         RT_TRACE(COMP_DBG,
342                                  "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
343                                  __func__);
344                         priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
345                                               (unsigned char *)&ShortPreamble);
346                 }
347         }
348 
349         if (net->mode & (IEEE_G|IEEE_N_24G)) {
350                 u8      slot_time_val;
351                 u8      CurSlotTime = priv->slot_time;
352 
353                 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
354                    (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
355                         if (CurSlotTime != SHORT_SLOT_TIME) {
356                                 slot_time_val = SHORT_SLOT_TIME;
357                                 priv->rtllib->SetHwRegHandler(dev,
358                                          HW_VAR_SLOT_TIME, &slot_time_val);
359                         }
360                 } else {
361                         if (CurSlotTime != NON_SHORT_SLOT_TIME) {
362                                 slot_time_val = NON_SHORT_SLOT_TIME;
363                                 priv->rtllib->SetHwRegHandler(dev,
364                                          HW_VAR_SLOT_TIME, &slot_time_val);
365                         }
366                 }
367         }
368 }
369 
370 static struct rtllib_qos_parameters def_qos_parameters = {
371         {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
372         {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
373         {2, 2, 2, 2},
374         {0, 0, 0, 0},
375         {0, 0, 0, 0}
376 };
377 
378 static void _rtl92e_update_beacon(void *data)
379 {
380         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
381                                   update_beacon_wq.work);
382         struct net_device *dev = priv->rtllib->dev;
383         struct rtllib_device *ieee = priv->rtllib;
384         struct rtllib_network *net = &ieee->current_network;
385 
386         if (ieee->pHTInfo->bCurrentHTSupport)
387                 HT_update_self_and_peer_setting(ieee, net);
388         ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
389                  net->bssht.bdRT2RTLongSlotTime;
390         ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
391         _rtl92e_update_cap(dev, net->capability);
392 }
393 
394 static void _rtl92e_qos_activate(void *data)
395 {
396         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
397                                   qos_activate);
398         struct net_device *dev = priv->rtllib->dev;
399         int i;
400 
401         mutex_lock(&priv->mutex);
402         if (priv->rtllib->state != RTLLIB_LINKED)
403                 goto success;
404         RT_TRACE(COMP_QOS,
405                  "qos active process with associate response received\n");
406 
407         for (i = 0; i <  QOS_QUEUE_NUM; i++)
408                 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
409 
410 
411 success:
412         mutex_unlock(&priv->mutex);
413 }
414 
415 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
416                                              int active_network,
417                                              struct rtllib_network *network)
418 {
419         int ret = 0;
420         u32 size = sizeof(struct rtllib_qos_parameters);
421 
422         if (priv->rtllib->state != RTLLIB_LINKED)
423                 return ret;
424 
425         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
426                 return ret;
427 
428         if (network->flags & NETWORK_HAS_QOS_MASK) {
429                 if (active_network &&
430                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
431                         network->qos_data.active = network->qos_data.supported;
432 
433                 if ((network->qos_data.active == 1) && (active_network == 1) &&
434                                 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
435                                 (network->qos_data.old_param_count !=
436                                 network->qos_data.param_count)) {
437                         network->qos_data.old_param_count =
438                                 network->qos_data.param_count;
439         priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
440                         queue_work_rsl(priv->priv_wq, &priv->qos_activate);
441                         RT_TRACE(COMP_QOS,
442                                  "QoS parameters change call qos_activate\n");
443                 }
444         } else {
445                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
446                        &def_qos_parameters, size);
447 
448                 if ((network->qos_data.active == 1) && (active_network == 1)) {
449                         queue_work_rsl(priv->priv_wq, &priv->qos_activate);
450                         RT_TRACE(COMP_QOS,
451                                  "QoS was disabled call qos_activate\n");
452                 }
453                 network->qos_data.active = 0;
454                 network->qos_data.supported = 0;
455         }
456 
457         return 0;
458 }
459 
460 static int _rtl92e_handle_beacon(struct net_device *dev,
461                                  struct rtllib_beacon *beacon,
462                                  struct rtllib_network *network)
463 {
464         struct r8192_priv *priv = rtllib_priv(dev);
465 
466         _rtl92e_qos_handle_probe_response(priv, 1, network);
467 
468         queue_delayed_work_rsl(priv->priv_wq, &priv->update_beacon_wq, 0);
469         return 0;
470 
471 }
472 
473 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
474                                   struct rtllib_network *network)
475 {
476         unsigned long flags;
477         u32 size = sizeof(struct rtllib_qos_parameters);
478         int set_qos_param = 0;
479 
480         if ((priv == NULL) || (network == NULL))
481                 return 0;
482 
483         if (priv->rtllib->state != RTLLIB_LINKED)
484                 return 0;
485 
486         if (priv->rtllib->iw_mode != IW_MODE_INFRA)
487                 return 0;
488 
489         spin_lock_irqsave(&priv->rtllib->lock, flags);
490         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
491                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
492                        &network->qos_data.parameters,
493                        sizeof(struct rtllib_qos_parameters));
494                 priv->rtllib->current_network.qos_data.active = 1;
495                 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
496                 set_qos_param = 1;
497                 priv->rtllib->current_network.qos_data.old_param_count =
498                         priv->rtllib->current_network.qos_data.param_count;
499                 priv->rtllib->current_network.qos_data.param_count =
500                         network->qos_data.param_count;
501         } else {
502                 memcpy(&priv->rtllib->current_network.qos_data.parameters,
503                 &def_qos_parameters, size);
504                 priv->rtllib->current_network.qos_data.active = 0;
505                 priv->rtllib->current_network.qos_data.supported = 0;
506                 set_qos_param = 1;
507         }
508 
509         spin_unlock_irqrestore(&priv->rtllib->lock, flags);
510 
511         RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
512                  network->flags, priv->rtllib->current_network.qos_data.active);
513         if (set_qos_param == 1) {
514                 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
515                 queue_work_rsl(priv->priv_wq, &priv->qos_activate);
516         }
517         return 0;
518 }
519 
520 static int _rtl92e_handle_assoc_response(struct net_device *dev,
521                                  struct rtllib_assoc_response_frame *resp,
522                                  struct rtllib_network *network)
523 {
524         struct r8192_priv *priv = rtllib_priv(dev);
525 
526         _rtl92e_qos_assoc_resp(priv, network);
527         return 0;
528 }
529 
530 static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
531 {
532         struct net_device *dev = priv->rtllib->dev;
533         struct sk_buff *pskb = NULL, *pnewskb = NULL;
534         struct cb_desc *tcb_desc = NULL;
535         struct rtl8192_tx_ring *ring = NULL;
536         struct tx_desc *pdesc = NULL;
537 
538         ring = &priv->tx_ring[BEACON_QUEUE];
539         pskb = __skb_dequeue(&ring->queue);
540         kfree_skb(pskb);
541 
542         pnewskb = rtllib_get_beacon(priv->rtllib);
543         if (!pnewskb)
544                 return;
545 
546         tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
547         tcb_desc->queue_index = BEACON_QUEUE;
548         tcb_desc->data_rate = 2;
549         tcb_desc->RATRIndex = 7;
550         tcb_desc->bTxDisableRateFallBack = 1;
551         tcb_desc->bTxUseDriverAssingedRate = 1;
552         skb_push(pnewskb, priv->rtllib->tx_headroom);
553 
554         pdesc = &ring->desc[0];
555         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
556         __skb_queue_tail(&ring->queue, pnewskb);
557         pdesc->OWN = 1;
558 }
559 
560 static void _rtl92e_stop_beacon(struct net_device *dev)
561 {
562 }
563 
564 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
565 {
566         struct r8192_priv *priv = rtllib_priv(dev);
567         struct rtllib_network *net;
568         u8 i = 0, basic_rate = 0;
569 
570         net = &priv->rtllib->current_network;
571 
572         for (i = 0; i < net->rates_len; i++) {
573                 basic_rate = net->rates[i] & 0x7f;
574                 switch (basic_rate) {
575                 case MGN_1M:
576                         *rate_config |= RRSR_1M;
577                         break;
578                 case MGN_2M:
579                         *rate_config |= RRSR_2M;
580                         break;
581                 case MGN_5_5M:
582                         *rate_config |= RRSR_5_5M;
583                         break;
584                 case MGN_11M:
585                         *rate_config |= RRSR_11M;
586                         break;
587                 case MGN_6M:
588                         *rate_config |= RRSR_6M;
589                         break;
590                 case MGN_9M:
591                         *rate_config |= RRSR_9M;
592                         break;
593                 case MGN_12M:
594                         *rate_config |= RRSR_12M;
595                         break;
596                 case MGN_18M:
597                         *rate_config |= RRSR_18M;
598                         break;
599                 case MGN_24M:
600                         *rate_config |= RRSR_24M;
601                         break;
602                 case MGN_36M:
603                         *rate_config |= RRSR_36M;
604                         break;
605                 case MGN_48M:
606                         *rate_config |= RRSR_48M;
607                         break;
608                 case MGN_54M:
609                         *rate_config |= RRSR_54M;
610                         break;
611                 }
612         }
613 
614         for (i = 0; i < net->rates_ex_len; i++) {
615                 basic_rate = net->rates_ex[i] & 0x7f;
616                 switch (basic_rate) {
617                 case MGN_1M:
618                         *rate_config |= RRSR_1M;
619                         break;
620                 case MGN_2M:
621                         *rate_config |= RRSR_2M;
622                         break;
623                 case MGN_5_5M:
624                         *rate_config |= RRSR_5_5M;
625                         break;
626                 case MGN_11M:
627                         *rate_config |= RRSR_11M;
628                         break;
629                 case MGN_6M:
630                         *rate_config |= RRSR_6M;
631                         break;
632                 case MGN_9M:
633                         *rate_config |= RRSR_9M;
634                         break;
635                 case MGN_12M:
636                         *rate_config |= RRSR_12M;
637                         break;
638                 case MGN_18M:
639                         *rate_config |= RRSR_18M;
640                         break;
641                 case MGN_24M:
642                         *rate_config |= RRSR_24M;
643                         break;
644                 case MGN_36M:
645                         *rate_config |= RRSR_36M;
646                         break;
647                 case MGN_48M:
648                         *rate_config |= RRSR_48M;
649                         break;
650                 case MGN_54M:
651                         *rate_config |= RRSR_54M;
652                         break;
653                 }
654         }
655 }
656 
657 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
658 {
659         struct rtllib_device *ieee = priv->rtllib;
660 
661         if (ieee->mode == WIRELESS_MODE_N_24G ||
662             ieee->mode == WIRELESS_MODE_N_5G) {
663                 memcpy(ieee->Regdot11HTOperationalRateSet,
664                        ieee->RegHTSuppRateSet, 16);
665                 memcpy(ieee->Regdot11TxHTOperationalRateSet,
666                        ieee->RegHTSuppRateSet, 16);
667 
668         } else {
669                 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
670         }
671 }
672 
673 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
674 {
675         struct r8192_priv *priv = rtllib_priv(dev);
676         u8 ret = 0;
677 
678         switch (priv->rf_chip) {
679         case RF_8225:
680         case RF_8256:
681         case RF_6052:
682         case RF_PSEUDO_11N:
683                 ret = (WIRELESS_MODE_N_24G|WIRELESS_MODE_G | WIRELESS_MODE_B);
684                 break;
685         case RF_8258:
686                 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
687                 break;
688         default:
689                 ret = WIRELESS_MODE_B;
690                 break;
691         }
692         return ret;
693 }
694 
695 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
696 {
697         struct r8192_priv *priv = rtllib_priv(dev);
698         u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
699 
700         if ((wireless_mode == WIRELESS_MODE_AUTO) ||
701             ((wireless_mode & bSupportMode) == 0)) {
702                 if (bSupportMode & WIRELESS_MODE_N_24G) {
703                         wireless_mode = WIRELESS_MODE_N_24G;
704                 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
705                         wireless_mode = WIRELESS_MODE_N_5G;
706                 } else if ((bSupportMode & WIRELESS_MODE_A)) {
707                         wireless_mode = WIRELESS_MODE_A;
708                 } else if ((bSupportMode & WIRELESS_MODE_G)) {
709                         wireless_mode = WIRELESS_MODE_G;
710                 } else if ((bSupportMode & WIRELESS_MODE_B)) {
711                         wireless_mode = WIRELESS_MODE_B;
712                 } else {
713                         netdev_info(dev,
714                                     "%s(): Unsupported mode requested. Fallback to 802.11b\n",
715                                     __func__);
716                         wireless_mode = WIRELESS_MODE_B;
717                 }
718         }
719 
720         if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
721             (WIRELESS_MODE_G | WIRELESS_MODE_B))
722                 wireless_mode = WIRELESS_MODE_G;
723 
724         priv->rtllib->mode = wireless_mode;
725 
726         if ((wireless_mode == WIRELESS_MODE_N_24G) ||
727             (wireless_mode == WIRELESS_MODE_N_5G)) {
728                 priv->rtllib->pHTInfo->bEnableHT = 1;
729         RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
730                  __func__, wireless_mode);
731         } else {
732                 priv->rtllib->pHTInfo->bEnableHT = 0;
733                 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
734                          __func__, wireless_mode);
735         }
736 
737         RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
738         _rtl92e_refresh_support_rate(priv);
739 }
740 
741 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
742 {
743         struct r8192_priv *priv = rtllib_priv(dev);
744         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
745                                         (&(priv->rtllib->PowerSaveControl));
746         bool init_status = true;
747 
748         priv->bDriverIsGoingToUnload = false;
749         priv->bdisable_nic = false;
750 
751         priv->up = 1;
752         priv->rtllib->ieee_up = 1;
753 
754         priv->up_first_time = 0;
755         RT_TRACE(COMP_INIT, "Bringing up iface");
756         priv->bfirst_init = true;
757         init_status = priv->ops->initialize_adapter(dev);
758         if (!init_status) {
759                 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
760                 priv->bfirst_init = false;
761                 return -1;
762         }
763 
764         RT_TRACE(COMP_INIT, "start adapter finished\n");
765         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
766         priv->bfirst_init = false;
767 
768         if (priv->polling_timer_on == 0)
769                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
770 
771         if (priv->rtllib->state != RTLLIB_LINKED)
772                 rtllib_softmac_start_protocol(priv->rtllib, 0);
773         rtllib_reset_queue(priv->rtllib);
774         _rtl92e_watchdog_timer_cb((unsigned long)dev);
775 
776         if (!netif_queue_stopped(dev))
777                 netif_start_queue(dev);
778         else
779                 netif_wake_queue(dev);
780 
781         return 0;
782 }
783 
784 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
785 {
786         struct r8192_priv *priv = rtllib_priv(dev);
787         unsigned long flags = 0;
788         u8 RFInProgressTimeOut = 0;
789 
790         if (priv->up == 0)
791                 return -1;
792 
793         if (priv->rtllib->rtllib_ips_leave != NULL)
794                 priv->rtllib->rtllib_ips_leave(dev);
795 
796         if (priv->rtllib->state == RTLLIB_LINKED)
797                 rtl92e_leisure_ps_leave(dev);
798 
799         priv->bDriverIsGoingToUnload = true;
800         priv->up = 0;
801         priv->rtllib->ieee_up = 0;
802         priv->bfirst_after_down = true;
803         RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
804         if (!netif_queue_stopped(dev))
805                 netif_stop_queue(dev);
806 
807         priv->rtllib->wpa_ie_len = 0;
808         kfree(priv->rtllib->wpa_ie);
809         priv->rtllib->wpa_ie = NULL;
810         rtl92e_cam_reset(dev);
811         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
812         rtl92e_irq_disable(dev);
813 
814         del_timer_sync(&priv->watch_dog_timer);
815         _rtl92e_cancel_deferred_work(priv);
816         cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
817 
818         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
819         spin_lock_irqsave(&priv->rf_ps_lock, flags);
820         while (priv->RFChangeInProgress) {
821                 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
822                 if (RFInProgressTimeOut > 100) {
823                         spin_lock_irqsave(&priv->rf_ps_lock, flags);
824                         break;
825                 }
826                 RT_TRACE(COMP_DBG,
827                          "===>%s():RF is in progress, need to wait until rf change is done.\n",
828                          __func__);
829                 mdelay(1);
830                 RFInProgressTimeOut++;
831                 spin_lock_irqsave(&priv->rf_ps_lock, flags);
832         }
833         priv->RFChangeInProgress = true;
834         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
835         priv->ops->stop_adapter(dev, false);
836         spin_lock_irqsave(&priv->rf_ps_lock, flags);
837         priv->RFChangeInProgress = false;
838         spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
839         udelay(100);
840         memset(&priv->rtllib->current_network, 0,
841                offsetof(struct rtllib_network, list));
842         RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
843 
844         return 0;
845 }
846 
847 static void _rtl92e_init_priv_handler(struct net_device *dev)
848 {
849         struct r8192_priv *priv = rtllib_priv(dev);
850 
851         priv->rtllib->softmac_hard_start_xmit   = _rtl92e_hard_start_xmit;
852         priv->rtllib->set_chan                  = _rtl92e_set_chan;
853         priv->rtllib->link_change               = priv->ops->link_change;
854         priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
855         priv->rtllib->check_nic_enough_desc     = _rtl92e_check_nic_enough_desc;
856         priv->rtllib->handle_assoc_response     = _rtl92e_handle_assoc_response;
857         priv->rtllib->handle_beacon             = _rtl92e_handle_beacon;
858         priv->rtllib->SetWirelessMode           = rtl92e_set_wireless_mode;
859         priv->rtllib->LeisurePSLeave            = rtl92e_leisure_ps_leave;
860         priv->rtllib->SetBWModeHandler          = rtl92e_set_bw_mode;
861         priv->rf_set_chan                       = rtl92e_set_channel;
862 
863         priv->rtllib->start_send_beacons = rtl92e_start_beacon;
864         priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
865 
866         priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
867         priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
868         priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
869 
870         priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
871         priv->rtllib->GetHalfNmodeSupportByAPsHandler =
872                                                 rtl92e_is_halfn_supported_by_ap;
873 
874         priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
875         priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
876         priv->rtllib->SetFwCmdHandler = NULL;
877         priv->rtllib->InitialGainHandler = rtl92e_init_gain;
878         priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
879         priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
880 
881         priv->rtllib->LedControlHandler = NULL;
882         priv->rtllib->UpdateBeaconInterruptHandler = NULL;
883 
884         priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
885 }
886 
887 static void _rtl92e_init_priv_constant(struct net_device *dev)
888 {
889         struct r8192_priv *priv = rtllib_priv(dev);
890         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
891                                         &(priv->rtllib->PowerSaveControl);
892 
893         pPSC->RegMaxLPSAwakeIntvl = 5;
894 }
895 
896 
897 static void _rtl92e_init_priv_variable(struct net_device *dev)
898 {
899         struct r8192_priv *priv = rtllib_priv(dev);
900         u8 i;
901 
902         priv->AcmMethod = eAcmWay2_SW;
903         priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
904         priv->rtllib->status = 0;
905         priv->polling_timer_on = 0;
906         priv->up_first_time = 1;
907         priv->blinked_ingpio = false;
908         priv->bDriverIsGoingToUnload = false;
909         priv->being_init_adapter = false;
910         priv->initialized_at_probe = false;
911         priv->bdisable_nic = false;
912         priv->bfirst_init = false;
913         priv->txringcount = 64;
914         priv->rxbuffersize = 9100;
915         priv->rxringcount = MAX_RX_COUNT;
916         priv->irq_enabled = 0;
917         priv->chan = 1;
918         priv->RegChannelPlan = 0xf;
919         priv->rtllib->mode = WIRELESS_MODE_AUTO;
920         priv->rtllib->iw_mode = IW_MODE_INFRA;
921         priv->rtllib->bNetPromiscuousMode = false;
922         priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
923         priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
924                                                                  false;
925         priv->rtllib->ieee_up = 0;
926         priv->retry_rts = DEFAULT_RETRY_RTS;
927         priv->retry_data = DEFAULT_RETRY_DATA;
928         priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
929         priv->rtllib->rate = 110;
930         priv->rtllib->short_slot = 1;
931         priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
932         priv->bcck_in_ch14 = false;
933         priv->bfsync_processing  = false;
934         priv->CCKPresentAttentuation = 0;
935         priv->rfa_txpowertrackingindex = 0;
936         priv->rfc_txpowertrackingindex = 0;
937         priv->CckPwEnl = 6;
938         priv->ScanDelay = 50;
939         priv->ResetProgress = RESET_TYPE_NORESET;
940         priv->bForcedSilentReset = false;
941         priv->bDisableNormalResetCheck = false;
942         priv->force_reset = false;
943         memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
944 
945         memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
946         priv->RxCounter = 0;
947         priv->rtllib->wx_set_enc = 0;
948         priv->bHwRadioOff = false;
949         priv->RegRfOff = false;
950         priv->isRFOff = false;
951         priv->bInPowerSaveMode = false;
952         priv->rtllib->RfOffReason = 0;
953         priv->RFChangeInProgress = false;
954         priv->bHwRfOffAction = 0;
955         priv->SetRFPowerStateInProgress = false;
956         priv->rtllib->PowerSaveControl.bInactivePs = true;
957         priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
958         priv->rtllib->PowerSaveControl.bLeisurePs = true;
959         priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
960         priv->rtllib->LPSDelayCnt = 0;
961         priv->rtllib->sta_sleep = LPS_IS_WAKE;
962         priv->rtllib->eRFPowerState = eRfOn;
963 
964         priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
965         priv->rtllib->iw_mode = IW_MODE_INFRA;
966         priv->rtllib->active_scan = 1;
967         priv->rtllib->be_scan_inprogress = false;
968         priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
969                                    RTLLIB_OFDM_MODULATION;
970         priv->rtllib->host_encrypt = 1;
971         priv->rtllib->host_decrypt = 1;
972 
973         priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
974 
975         priv->card_type = PCI;
976 
977         priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
978         if (!priv->pFirmware)
979                 netdev_err(dev,
980                            "rtl8192e: Unable to allocate space for firmware\n");
981 
982         skb_queue_head_init(&priv->skb_queue);
983 
984         for (i = 0; i < MAX_QUEUE_SIZE; i++)
985                 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
986         for (i = 0; i < MAX_QUEUE_SIZE; i++)
987                 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
988 }
989 
990 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
991 {
992         spin_lock_init(&priv->tx_lock);
993         spin_lock_init(&priv->irq_th_lock);
994         spin_lock_init(&priv->rf_ps_lock);
995         spin_lock_init(&priv->ps_lock);
996         sema_init(&priv->wx_sem, 1);
997         sema_init(&priv->rf_sem, 1);
998         mutex_init(&priv->mutex);
999 }
1000 
1001 static void _rtl92e_init_priv_task(struct net_device *dev)
1002 {
1003         struct r8192_priv *priv = rtllib_priv(dev);
1004 
1005         priv->priv_wq = create_workqueue(DRV_NAME);
1006         INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1007         INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1008                       dev);
1009         INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1010                               (void *)_rtl92e_watchdog_wq_cb, dev);
1011         INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1012                               (void *)rtl92e_dm_txpower_tracking_wq, dev);
1013         INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1014                               (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1015         INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1016                               (void *)_rtl92e_update_beacon, dev);
1017         INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1018         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1019                               (void *) rtl92e_hw_wakeup_wq, dev);
1020         INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1021                               (void *) rtl92e_hw_sleep_wq, dev);
1022         tasklet_init(&priv->irq_rx_tasklet,
1023                      (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1024                      (unsigned long)priv);
1025         tasklet_init(&priv->irq_tx_tasklet,
1026                      (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1027                      (unsigned long)priv);
1028         tasklet_init(&priv->irq_prepare_beacon_tasklet,
1029                      (void(*)(unsigned long))_rtl92e_prepare_beacon,
1030                      (unsigned long)priv);
1031 }
1032 
1033 static short _rtl92e_get_channel_map(struct net_device *dev)
1034 {
1035         int i;
1036 
1037         struct r8192_priv *priv = rtllib_priv(dev);
1038 
1039         if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
1040                         && (priv->rf_chip != RF_6052)) {
1041                 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1042                            __func__);
1043                 return -1;
1044         }
1045 
1046         if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1047                 netdev_info(dev,
1048                             "rtl819x_init:Error channel plan! Set to default.\n");
1049                 priv->ChannelPlan = COUNTRY_CODE_FCC;
1050         }
1051         RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1052         dot11d_init(priv->rtllib);
1053         Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1054         for (i = 1; i <= 11; i++)
1055                 (priv->rtllib->active_channel_map)[i] = 1;
1056         (priv->rtllib->active_channel_map)[12] = 2;
1057         (priv->rtllib->active_channel_map)[13] = 2;
1058 
1059         return 0;
1060 }
1061 
1062 static short _rtl92e_init(struct net_device *dev)
1063 {
1064         struct r8192_priv *priv = rtllib_priv(dev);
1065 
1066         memset(&(priv->stats), 0, sizeof(struct rt_stats));
1067 
1068         _rtl92e_init_priv_handler(dev);
1069         _rtl92e_init_priv_constant(dev);
1070         _rtl92e_init_priv_variable(dev);
1071         _rtl92e_init_priv_lock(priv);
1072         _rtl92e_init_priv_task(dev);
1073         priv->ops->get_eeprom_size(dev);
1074         priv->ops->init_adapter_variable(dev);
1075         _rtl92e_get_channel_map(dev);
1076 
1077         rtl92e_dm_init(dev);
1078 
1079         setup_timer(&priv->watch_dog_timer,
1080                     _rtl92e_watchdog_timer_cb,
1081                     (unsigned long) dev);
1082 
1083         setup_timer(&priv->gpio_polling_timer,
1084                     rtl92e_check_rfctrl_gpio_timer,
1085                     (unsigned long)dev);
1086 
1087         rtl92e_irq_disable(dev);
1088         if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1089                 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1090                 return -1;
1091         }
1092 
1093         priv->irq = dev->irq;
1094         RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1095 
1096         if (_rtl92e_pci_initdescring(dev) != 0) {
1097                 netdev_err(dev, "Endopoints initialization failed");
1098                 free_irq(dev->irq, dev);
1099                 return -1;
1100         }
1101 
1102         return 0;
1103 }
1104 
1105 /***************************************************************************
1106         -------------------------------WATCHDOG STUFF---------------------------
1107 ***************************************************************************/
1108 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1109 {
1110         int i = 0;
1111         struct r8192_priv *priv = rtllib_priv(dev);
1112 
1113         for (i = 0; i <= MGNT_QUEUE; i++) {
1114                 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1115                         continue;
1116                 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1117                         netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1118                                i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1119                         return 0;
1120                 }
1121         }
1122         return 1;
1123 }
1124 
1125 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1126 {
1127         struct r8192_priv *priv = rtllib_priv(dev);
1128         u8      QueueID;
1129         bool    bCheckFwTxCnt = false;
1130         struct rtl8192_tx_ring  *ring = NULL;
1131         struct sk_buff *skb = NULL;
1132         struct cb_desc *tcb_desc = NULL;
1133         unsigned long flags = 0;
1134 
1135         switch (priv->rtllib->ps) {
1136         case RTLLIB_PS_DISABLED:
1137                 break;
1138         case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
1139                 break;
1140         default:
1141                 break;
1142         }
1143         spin_lock_irqsave(&priv->irq_th_lock, flags);
1144         for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1145                 if (QueueID == TXCMD_QUEUE)
1146                         continue;
1147 
1148                 if (QueueID == BEACON_QUEUE)
1149                         continue;
1150 
1151                 ring = &priv->tx_ring[QueueID];
1152 
1153                 if (skb_queue_len(&ring->queue) == 0) {
1154                         continue;
1155                 } else {
1156                         skb = (&ring->queue)->next;
1157                         tcb_desc = (struct cb_desc *)(skb->cb +
1158                                     MAX_DEV_ADDR_SIZE);
1159                         tcb_desc->nStuckCount++;
1160                         bCheckFwTxCnt = true;
1161                         if (tcb_desc->nStuckCount > 1)
1162                                 netdev_info(dev,
1163                                             "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1164                                             __func__, QueueID,
1165                                             tcb_desc->nStuckCount);
1166                 }
1167         }
1168         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1169 
1170         if (bCheckFwTxCnt) {
1171                 if (priv->ops->TxCheckStuckHandler(dev)) {
1172                         RT_TRACE(COMP_RESET,
1173                                  "TxCheckStuck(): Fw indicates no Tx condition!\n");
1174                         return RESET_TYPE_SILENT;
1175                 }
1176         }
1177 
1178         return RESET_TYPE_NORESET;
1179 }
1180 
1181 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1182 {
1183         struct r8192_priv *priv = rtllib_priv(dev);
1184 
1185         if (priv->ops->RxCheckStuckHandler(dev)) {
1186                 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1187                 return RESET_TYPE_SILENT;
1188         }
1189 
1190         return RESET_TYPE_NORESET;
1191 }
1192 
1193 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1194 {
1195         struct r8192_priv *priv = rtllib_priv(dev);
1196         enum reset_type TxResetType = RESET_TYPE_NORESET;
1197         enum reset_type RxResetType = RESET_TYPE_NORESET;
1198         enum rt_rf_power_state rfState;
1199 
1200         rfState = priv->rtllib->eRFPowerState;
1201 
1202         if (rfState == eRfOn)
1203                 TxResetType = _rtl92e_tx_check_stuck(dev);
1204 
1205         if (rfState == eRfOn &&
1206             (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1207             (priv->rtllib->state == RTLLIB_LINKED))
1208                 RxResetType = _rtl92e_rx_check_stuck(dev);
1209 
1210         if (TxResetType == RESET_TYPE_NORMAL ||
1211             RxResetType == RESET_TYPE_NORMAL) {
1212                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1213                             __func__, TxResetType, RxResetType);
1214                 return RESET_TYPE_NORMAL;
1215         } else if (TxResetType == RESET_TYPE_SILENT ||
1216                    RxResetType == RESET_TYPE_SILENT) {
1217                 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1218                             __func__, TxResetType, RxResetType);
1219                 return RESET_TYPE_SILENT;
1220         } else {
1221                 return RESET_TYPE_NORESET;
1222         }
1223 
1224 }
1225 
1226 static void _rtl92e_if_silent_reset(struct net_device *dev)
1227 {
1228         struct r8192_priv *priv = rtllib_priv(dev);
1229         u8      reset_times = 0;
1230         int reset_status = 0;
1231         struct rtllib_device *ieee = priv->rtllib;
1232         unsigned long flag;
1233 
1234         if (priv->ResetProgress == RESET_TYPE_NORESET) {
1235 
1236                 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1237 
1238                 priv->ResetProgress = RESET_TYPE_SILENT;
1239 
1240                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1241                 if (priv->RFChangeInProgress) {
1242                         spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1243                         goto END;
1244                 }
1245                 priv->RFChangeInProgress = true;
1246                 priv->bResetInProgress = true;
1247                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1248 
1249 RESET_START:
1250 
1251                 down(&priv->wx_sem);
1252 
1253                 if (priv->rtllib->state == RTLLIB_LINKED)
1254                         rtl92e_leisure_ps_leave(dev);
1255 
1256                 if (priv->up) {
1257                         netdev_info(dev, "%s():the driver is not up.\n",
1258                                     __func__);
1259                         up(&priv->wx_sem);
1260                         return;
1261                 }
1262                 priv->up = 0;
1263 
1264                 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1265                           __func__);
1266                 mdelay(1000);
1267                 RT_TRACE(COMP_RESET,
1268                          "%s():111111111111111111111111======>start to down the driver\n",
1269                          __func__);
1270 
1271                 if (!netif_queue_stopped(dev))
1272                         netif_stop_queue(dev);
1273 
1274                 rtl92e_irq_disable(dev);
1275                 del_timer_sync(&priv->watch_dog_timer);
1276                 _rtl92e_cancel_deferred_work(priv);
1277                 rtl92e_dm_deinit(dev);
1278                 rtllib_stop_scan_syncro(ieee);
1279 
1280                 if (ieee->state == RTLLIB_LINKED) {
1281                         SEM_DOWN_IEEE_WX(&ieee->wx_sem);
1282                         netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1283                         rtllib_stop_send_beacons(priv->rtllib);
1284                         del_timer_sync(&ieee->associate_timer);
1285                         cancel_delayed_work(&ieee->associate_retry_wq);
1286                         rtllib_stop_scan(ieee);
1287                         netif_carrier_off(dev);
1288                         SEM_UP_IEEE_WX(&ieee->wx_sem);
1289                 } else {
1290                         netdev_info(dev, "ieee->state is NOT LINKED\n");
1291                         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1292                 }
1293 
1294                 rtl92e_dm_backup_state(dev);
1295 
1296                 up(&priv->wx_sem);
1297                 RT_TRACE(COMP_RESET,
1298                          "%s():<==========down process is finished\n",
1299                          __func__);
1300 
1301                 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1302                          __func__);
1303                 reset_status = _rtl92e_up(dev, true);
1304 
1305                 RT_TRACE(COMP_RESET,
1306                          "%s():<===========up process is finished\n", __func__);
1307                 if (reset_status == -1) {
1308                         if (reset_times < 3) {
1309                                 reset_times++;
1310                                 goto RESET_START;
1311                         } else {
1312                                 netdev_warn(dev, "%s(): Reset Failed\n",
1313                                             __func__);
1314                         }
1315                 }
1316 
1317                 ieee->is_silent_reset = 1;
1318 
1319                 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1320                 priv->RFChangeInProgress = false;
1321                 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1322 
1323                 rtl92e_enable_hw_security_config(dev);
1324 
1325                 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1326                     IW_MODE_INFRA) {
1327                         ieee->set_chan(ieee->dev,
1328                                        ieee->current_network.channel);
1329 
1330                         queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1331 
1332                 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1333                            IW_MODE_ADHOC) {
1334                         ieee->set_chan(ieee->dev,
1335                                        ieee->current_network.channel);
1336                         ieee->link_change(ieee->dev);
1337 
1338                         notify_wx_assoc_event(ieee);
1339 
1340                         rtllib_start_send_beacons(ieee);
1341 
1342                         netif_carrier_on(ieee->dev);
1343                 }
1344 
1345                 rtl92e_cam_restore(dev);
1346                 rtl92e_dm_restore_state(dev);
1347 END:
1348                 priv->ResetProgress = RESET_TYPE_NORESET;
1349                 priv->reset_count++;
1350 
1351                 priv->bForcedSilentReset = false;
1352                 priv->bResetInProgress = false;
1353 
1354                 rtl92e_writeb(dev, UFWP, 1);
1355                 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1356                          priv->reset_count);
1357         }
1358 }
1359 
1360 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1361                                     u32 *TotalRxDataNum)
1362 {
1363         u16     SlotIndex;
1364         u8      i;
1365 
1366         *TotalRxBcnNum = 0;
1367         *TotalRxDataNum = 0;
1368 
1369         SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1370                         (priv->rtllib->LinkDetectInfo.SlotNum);
1371         priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1372                         priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1373         priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1374                         priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1375         for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1376                 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1377                 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1378         }
1379 }
1380 
1381 static void _rtl92e_watchdog_wq_cb(void *data)
1382 {
1383         struct r8192_priv *priv = container_of_dwork_rsl(data,
1384                                   struct r8192_priv, watch_dog_wq);
1385         struct net_device *dev = priv->rtllib->dev;
1386         struct rtllib_device *ieee = priv->rtllib;
1387         enum reset_type ResetType = RESET_TYPE_NORESET;
1388         static u8 check_reset_cnt;
1389         unsigned long flags;
1390         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1391                                         (&(priv->rtllib->PowerSaveControl));
1392         bool bBusyTraffic = false;
1393         bool    bHigherBusyTraffic = false;
1394         bool    bHigherBusyRxTraffic = false;
1395         bool bEnterPS = false;
1396 
1397         if (!priv->up || priv->bHwRadioOff)
1398                 return;
1399 
1400         if (priv->rtllib->state >= RTLLIB_LINKED) {
1401                 if (priv->rtllib->CntAfterLink < 2)
1402                         priv->rtllib->CntAfterLink++;
1403         } else {
1404                 priv->rtllib->CntAfterLink = 0;
1405         }
1406 
1407         rtl92e_dm_watchdog(dev);
1408 
1409         if (rtllib_act_scanning(priv->rtllib, false) == false) {
1410                 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1411                      RTLLIB_NOLINK) &&
1412                      (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1413                      (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1414                         if ((ieee->PowerSaveControl.ReturnPoint ==
1415                              IPS_CALLBACK_NONE) &&
1416                              (!ieee->bNetPromiscuousMode)) {
1417                                 RT_TRACE(COMP_PS,
1418                                          "====================>haha: rtl92e_ips_enter()\n");
1419                                 rtl92e_ips_enter(dev);
1420                         }
1421                 }
1422         }
1423         if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1424              IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1425                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1426                 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1427                         bBusyTraffic = true;
1428 
1429 
1430                 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1431                     ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1432                         bHigherBusyTraffic = true;
1433                         if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1434                                 bHigherBusyRxTraffic = true;
1435                         else
1436                                 bHigherBusyRxTraffic = false;
1437                 }
1438 
1439                 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1440                     ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1441                     (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1442                         bEnterPS = false;
1443                 else
1444                         bEnterPS = true;
1445 
1446                 if (ieee->current_network.beacon_interval < 95)
1447                         bEnterPS = false;
1448 
1449                 if (bEnterPS)
1450                         rtl92e_leisure_ps_enter(dev);
1451                 else
1452                         rtl92e_leisure_ps_leave(dev);
1453 
1454         } else {
1455                 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1456                 rtl92e_leisure_ps_leave(dev);
1457         }
1458 
1459         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1460         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1461         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1462         ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1463 
1464         ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1465         ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1466 
1467         if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1468                 u32     TotalRxBcnNum = 0;
1469                 u32     TotalRxDataNum = 0;
1470 
1471                 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1472 
1473                 if ((TotalRxBcnNum+TotalRxDataNum) == 0)
1474                         priv->check_roaming_cnt++;
1475                 else
1476                         priv->check_roaming_cnt = 0;
1477 
1478 
1479                 if (priv->check_roaming_cnt > 0) {
1480                         if (ieee->eRFPowerState == eRfOff)
1481                                 netdev_info(dev, "%s(): RF is off\n", __func__);
1482 
1483                         netdev_info(dev,
1484                                     "===>%s(): AP is power off, chan:%d, connect another one\n",
1485                                     __func__, priv->chan);
1486 
1487                         ieee->state = RTLLIB_ASSOCIATING;
1488 
1489                         RemovePeerTS(priv->rtllib,
1490                                      priv->rtllib->current_network.bssid);
1491                         ieee->is_roaming = true;
1492                         ieee->is_set_key = false;
1493                         ieee->link_change(dev);
1494                         if (ieee->LedControlHandler)
1495                                 ieee->LedControlHandler(ieee->dev,
1496                                                         LED_CTL_START_TO_LINK);
1497 
1498                         notify_wx_assoc_event(ieee);
1499 
1500                         if (!(ieee->rtllib_ap_sec_type(ieee) &
1501                              (SEC_ALG_CCMP|SEC_ALG_TKIP)))
1502                                 queue_delayed_work_rsl(ieee->wq,
1503                                         &ieee->associate_procedure_wq, 0);
1504 
1505                         priv->check_roaming_cnt = 0;
1506                 }
1507                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1508                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1509 
1510         }
1511 
1512         spin_lock_irqsave(&priv->tx_lock, flags);
1513         if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1514             (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1515                 ResetType = _rtl92e_if_check_reset(dev);
1516                 check_reset_cnt = 3;
1517         }
1518         spin_unlock_irqrestore(&priv->tx_lock, flags);
1519 
1520         if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1521                 priv->ResetProgress = RESET_TYPE_NORMAL;
1522                 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1523                 return;
1524         }
1525 
1526         if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1527               ResetType == RESET_TYPE_SILENT)))
1528                 _rtl92e_if_silent_reset(dev);
1529         priv->force_reset = false;
1530         priv->bForcedSilentReset = false;
1531         priv->bResetInProgress = false;
1532         RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1533 }
1534 
1535 static void _rtl92e_watchdog_timer_cb(unsigned long data)
1536 {
1537         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
1538 
1539         queue_delayed_work_rsl(priv->priv_wq, &priv->watch_dog_wq, 0);
1540         mod_timer(&priv->watch_dog_timer, jiffies +
1541                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1542 }
1543 
1544 /****************************************************************************
1545  ---------------------------- NIC TX/RX STUFF---------------------------
1546 *****************************************************************************/
1547 void rtl92e_rx_enable(struct net_device *dev)
1548 {
1549         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1550 
1551         priv->ops->rx_enable(dev);
1552 }
1553 
1554 void rtl92e_tx_enable(struct net_device *dev)
1555 {
1556         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1557 
1558         priv->ops->tx_enable(dev);
1559 
1560         rtllib_reset_queue(priv->rtllib);
1561 }
1562 
1563 
1564 static void _rtl92e_free_rx_ring(struct net_device *dev)
1565 {
1566         struct r8192_priv *priv = rtllib_priv(dev);
1567         int i, rx_queue_idx;
1568 
1569         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1570              rx_queue_idx++) {
1571                 for (i = 0; i < priv->rxringcount; i++) {
1572                         struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1573 
1574                         if (!skb)
1575                                 continue;
1576 
1577                         pci_unmap_single(priv->pdev,
1578                                 *((dma_addr_t *)skb->cb),
1579                                 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1580                                 kfree_skb(skb);
1581                 }
1582 
1583                 pci_free_consistent(priv->pdev,
1584                         sizeof(*priv->rx_ring[rx_queue_idx]) *
1585                         priv->rxringcount,
1586                         priv->rx_ring[rx_queue_idx],
1587                         priv->rx_ring_dma[rx_queue_idx]);
1588                 priv->rx_ring[rx_queue_idx] = NULL;
1589         }
1590 }
1591 
1592 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1593 {
1594         struct r8192_priv *priv = rtllib_priv(dev);
1595         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1596 
1597         while (skb_queue_len(&ring->queue)) {
1598                 struct tx_desc *entry = &ring->desc[ring->idx];
1599                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1600 
1601                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1602                         skb->len, PCI_DMA_TODEVICE);
1603                 kfree_skb(skb);
1604                 ring->idx = (ring->idx + 1) % ring->entries;
1605         }
1606 
1607         pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
1608         ring->desc, ring->dma);
1609         ring->desc = NULL;
1610 }
1611 
1612 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1613                                    int rate)
1614 {
1615         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1616         int ret;
1617         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1618                                     MAX_DEV_ADDR_SIZE);
1619         u8 queue_index = tcb_desc->queue_index;
1620 
1621         if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1622              priv->bResetInProgress) {
1623                 kfree_skb(skb);
1624                 return;
1625         }
1626 
1627         if (queue_index == TXCMD_QUEUE)
1628                 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1629                             __func__);
1630 
1631         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1632         skb_push(skb, priv->rtllib->tx_headroom);
1633         ret = _rtl92e_tx(dev, skb);
1634         if (ret != 0)
1635                 kfree_skb(skb);
1636 
1637         if (queue_index != MGNT_QUEUE) {
1638                 priv->rtllib->stats.tx_bytes += (skb->len -
1639                                                  priv->rtllib->tx_headroom);
1640                 priv->rtllib->stats.tx_packets++;
1641         }
1642 }
1643 
1644 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1645 {
1646         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1647         int ret;
1648         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1649                                     MAX_DEV_ADDR_SIZE);
1650         u8 queue_index = tcb_desc->queue_index;
1651 
1652         if (queue_index != TXCMD_QUEUE) {
1653                 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1654                      !priv->up || priv->bResetInProgress) {
1655                         kfree_skb(skb);
1656                         return 0;
1657                 }
1658         }
1659 
1660         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1661         if (queue_index == TXCMD_QUEUE) {
1662                 _rtl92e_tx_cmd(dev, skb);
1663                 return 0;
1664         }
1665 
1666         tcb_desc->RATRIndex = 7;
1667         tcb_desc->bTxDisableRateFallBack = 1;
1668         tcb_desc->bTxUseDriverAssingedRate = 1;
1669         tcb_desc->bTxEnableFwCalcDur = 1;
1670         skb_push(skb, priv->rtllib->tx_headroom);
1671         ret = _rtl92e_tx(dev, skb);
1672         if (ret != 0)
1673                 kfree_skb(skb);
1674         return ret;
1675 }
1676 
1677 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1678 {
1679         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1680 
1681         struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1682 
1683         while (skb_queue_len(&ring->queue)) {
1684                 struct tx_desc *entry = &ring->desc[ring->idx];
1685                 struct sk_buff *skb;
1686 
1687                 if (prio != BEACON_QUEUE) {
1688                         if (entry->OWN)
1689                                 return;
1690                         ring->idx = (ring->idx + 1) % ring->entries;
1691                 }
1692 
1693                 skb = __skb_dequeue(&ring->queue);
1694                 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1695                 skb->len, PCI_DMA_TODEVICE);
1696 
1697                 kfree_skb(skb);
1698         }
1699         if (prio != BEACON_QUEUE)
1700                 tasklet_schedule(&priv->irq_tx_tasklet);
1701 }
1702 
1703 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1704 {
1705         struct r8192_priv *priv = rtllib_priv(dev);
1706         struct rtl8192_tx_ring *ring;
1707         struct tx_desc_cmd *entry;
1708         unsigned int idx;
1709         struct cb_desc *tcb_desc;
1710         unsigned long flags;
1711 
1712         spin_lock_irqsave(&priv->irq_th_lock, flags);
1713         ring = &priv->tx_ring[TXCMD_QUEUE];
1714 
1715         idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1716         entry = (struct tx_desc_cmd *) &ring->desc[idx];
1717 
1718         tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1719 
1720         priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1721 
1722         __skb_queue_tail(&ring->queue, skb);
1723         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1724 }
1725 
1726 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1727 {
1728         struct r8192_priv *priv = rtllib_priv(dev);
1729         struct rtl8192_tx_ring  *ring;
1730         unsigned long flags;
1731         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1732                                     MAX_DEV_ADDR_SIZE);
1733         struct tx_desc *pdesc = NULL;
1734         struct rtllib_hdr_1addr *header = NULL;
1735         u16 fc = 0, type = 0, stype = 0;
1736         bool  multi_addr = false, broad_addr = false, uni_addr = false;
1737         u8 *pda_addr = NULL;
1738         int   idx;
1739         u32 fwinfo_size = 0;
1740 
1741         if (priv->bdisable_nic) {
1742                 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1743                             __func__);
1744                 return skb->len;
1745         }
1746 
1747         priv->rtllib->bAwakePktSent = true;
1748 
1749         fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1750 
1751         header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1752         fc = le16_to_cpu(header->frame_ctl);
1753         type = WLAN_FC_GET_TYPE(fc);
1754         stype = WLAN_FC_GET_STYPE(fc);
1755         pda_addr = header->addr1;
1756 
1757         if (is_broadcast_ether_addr(pda_addr))
1758                 broad_addr = true;
1759         else if (is_multicast_ether_addr(pda_addr))
1760                 multi_addr = true;
1761         else
1762                 uni_addr = true;
1763 
1764         if (uni_addr)
1765                 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1766         else if (multi_addr)
1767                 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1768         else
1769                 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1770 
1771         spin_lock_irqsave(&priv->irq_th_lock, flags);
1772         ring = &priv->tx_ring[tcb_desc->queue_index];
1773         if (tcb_desc->queue_index != BEACON_QUEUE)
1774                 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1775         else
1776                 idx = 0;
1777 
1778         pdesc = &ring->desc[idx];
1779         if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1780                 netdev_warn(dev,
1781                             "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1782                             tcb_desc->queue_index, ring->idx, idx, skb->len,
1783                             skb_queue_len(&ring->queue));
1784                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1785                 return skb->len;
1786         }
1787 
1788         if (type == RTLLIB_FTYPE_DATA) {
1789                 if (priv->rtllib->LedControlHandler)
1790                         priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1791         }
1792         priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1793         __skb_queue_tail(&ring->queue, skb);
1794         pdesc->OWN = 1;
1795         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1796         dev->trans_start = jiffies;
1797 
1798         rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1799         return 0;
1800 }
1801 
1802 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1803 {
1804         struct r8192_priv *priv = rtllib_priv(dev);
1805         struct rx_desc *entry = NULL;
1806         int i, rx_queue_idx;
1807 
1808         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1809                 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1810                                               sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1811                                               &priv->rx_ring_dma[rx_queue_idx]);
1812                 if (!priv->rx_ring[rx_queue_idx] ||
1813                     (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1814                         netdev_warn(dev, "Cannot allocate RX ring\n");
1815                         return -ENOMEM;
1816                 }
1817 
1818                 priv->rx_idx[rx_queue_idx] = 0;
1819 
1820                 for (i = 0; i < priv->rxringcount; i++) {
1821                         struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1822                         dma_addr_t *mapping;
1823 
1824                         entry = &priv->rx_ring[rx_queue_idx][i];
1825                         if (!skb)
1826                                 return 0;
1827                         skb->dev = dev;
1828                         priv->rx_buf[rx_queue_idx][i] = skb;
1829                         mapping = (dma_addr_t *)skb->cb;
1830                         *mapping = pci_map_single(priv->pdev,
1831                                                   skb_tail_pointer_rsl(skb),
1832                                                   priv->rxbuffersize,
1833                                                   PCI_DMA_FROMDEVICE);
1834                         if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1835                                 dev_kfree_skb_any(skb);
1836                                 return -1;
1837                         }
1838                         entry->BufferAddress = *mapping;
1839 
1840                         entry->Length = priv->rxbuffersize;
1841                         entry->OWN = 1;
1842                 }
1843 
1844                 if (entry)
1845                         entry->EOR = 1;
1846         }
1847         return 0;
1848 }
1849 
1850 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1851                                  unsigned int entries)
1852 {
1853         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1854         struct tx_desc *ring;
1855         dma_addr_t dma;
1856         int i;
1857 
1858         ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1859         if (!ring || (unsigned long)ring & 0xFF) {
1860                 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1861                 return -ENOMEM;
1862         }
1863 
1864         priv->tx_ring[prio].desc = ring;
1865         priv->tx_ring[prio].dma = dma;
1866         priv->tx_ring[prio].idx = 0;
1867         priv->tx_ring[prio].entries = entries;
1868         skb_queue_head_init(&priv->tx_ring[prio].queue);
1869 
1870         for (i = 0; i < entries; i++)
1871                 ring[i].NextDescAddress =
1872                         (u32)dma + ((i + 1) % entries) *
1873                         sizeof(*ring);
1874 
1875         return 0;
1876 }
1877 
1878 static short _rtl92e_pci_initdescring(struct net_device *dev)
1879 {
1880         u32 ret;
1881         int i;
1882         struct r8192_priv *priv = rtllib_priv(dev);
1883 
1884         ret = _rtl92e_alloc_rx_ring(dev);
1885         if (ret)
1886                 return ret;
1887 
1888         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1889                 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1890                 if (ret)
1891                         goto err_free_rings;
1892         }
1893 
1894         return 0;
1895 
1896 err_free_rings:
1897         _rtl92e_free_rx_ring(dev);
1898         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1899                 if (priv->tx_ring[i].desc)
1900                         _rtl92e_free_tx_ring(dev, i);
1901         return 1;
1902 }
1903 
1904 void rtl92e_reset_desc_ring(struct net_device *dev)
1905 {
1906         struct r8192_priv *priv = rtllib_priv(dev);
1907         int i, rx_queue_idx;
1908         unsigned long flags = 0;
1909 
1910         for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1911                 if (priv->rx_ring[rx_queue_idx]) {
1912                         struct rx_desc *entry = NULL;
1913 
1914                         for (i = 0; i < priv->rxringcount; i++) {
1915                                 entry = &priv->rx_ring[rx_queue_idx][i];
1916                                 entry->OWN = 1;
1917                         }
1918                         priv->rx_idx[rx_queue_idx] = 0;
1919                 }
1920         }
1921 
1922         spin_lock_irqsave(&priv->irq_th_lock, flags);
1923         for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1924                 if (priv->tx_ring[i].desc) {
1925                         struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1926 
1927                         while (skb_queue_len(&ring->queue)) {
1928                                 struct tx_desc *entry = &ring->desc[ring->idx];
1929                                 struct sk_buff *skb =
1930                                                  __skb_dequeue(&ring->queue);
1931 
1932                                 pci_unmap_single(priv->pdev,
1933                                                  entry->TxBuffAddr,
1934                                                  skb->len, PCI_DMA_TODEVICE);
1935                                 kfree_skb(skb);
1936                                 ring->idx = (ring->idx + 1) % ring->entries;
1937                         }
1938                         ring->idx = 0;
1939                 }
1940         }
1941         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1942 }
1943 
1944 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1945                                     struct rtllib_rx_stats *stats)
1946 {
1947         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1948 
1949         if (stats->bIsAMPDU && !stats->bFirstMPDU)
1950                 stats->mac_time = priv->LastRxDescTSF;
1951         else
1952                 priv->LastRxDescTSF = stats->mac_time;
1953 }
1954 
1955 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1956 {
1957         long    signal_power;
1958 
1959         signal_power = (long)((signal_strength_index + 1) >> 1);
1960         signal_power -= 95;
1961 
1962         return signal_power;
1963 }
1964 
1965 
1966 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1967                                  struct rtllib_rx_stats *pprevious_stats)
1968 {
1969         int weighting = 0;
1970 
1971 
1972         if (priv->stats.recv_signal_power == 0)
1973                 priv->stats.recv_signal_power =
1974                                          pprevious_stats->RecvSignalPower;
1975 
1976         if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1977                 weighting = 5;
1978         else if (pprevious_stats->RecvSignalPower <
1979                  priv->stats.recv_signal_power)
1980                 weighting = (-5);
1981         priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1982                                         pprevious_stats->RecvSignalPower +
1983                                         weighting) / 6;
1984 }
1985 
1986 u8 rtl92e_rx_db_to_percent(char antpower)
1987 {
1988         if ((antpower <= -100) || (antpower >= 20))
1989                 return  0;
1990         else if (antpower >= 0)
1991                 return  100;
1992         else
1993                 return  100 + antpower;
1994 
1995 }       /* QueryRxPwrPercentage */
1996 
1997 u8 rtl92e_evm_db_to_percent(char value)
1998 {
1999         char ret_val;
2000 
2001         ret_val = value;
2002 
2003         if (ret_val >= 0)
2004                 ret_val = 0;
2005         if (ret_val <= -33)
2006                 ret_val = -33;
2007         ret_val = 0 - ret_val;
2008         ret_val *= 3;
2009         if (ret_val == 99)
2010                 ret_val = 100;
2011         return ret_val;
2012 }
2013 
2014 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2015                             struct rtllib_rx_stats *ptarget_stats)
2016 {
2017         ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2018         ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2019 }
2020 
2021 
2022 
2023 static void _rtl92e_rx_normal(struct net_device *dev)
2024 {
2025         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2026         struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2027         bool unicast_packet = false;
2028         bool bLedBlinking = true;
2029         u16 fc = 0, type = 0;
2030         u32 skb_len = 0;
2031         int rx_queue_idx = RX_MPDU_QUEUE;
2032 
2033         struct rtllib_rx_stats stats = {
2034                 .signal = 0,
2035                 .noise = (u8) -98,
2036                 .rate = 0,
2037                 .freq = RTLLIB_24GHZ_BAND,
2038         };
2039         unsigned int count = priv->rxringcount;
2040 
2041         stats.nic_type = NIC_8192E;
2042 
2043         while (count--) {
2044                 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2045                                         [priv->rx_idx[rx_queue_idx]];
2046                 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2047                                       [priv->rx_idx[rx_queue_idx]];
2048                 struct sk_buff *new_skb;
2049 
2050                 if (pdesc->OWN)
2051                         return;
2052                 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2053                 pdesc, skb))
2054                         goto done;
2055                 new_skb = dev_alloc_skb(priv->rxbuffersize);
2056                 /* if allocation of new skb failed - drop current packet
2057                  * and reuse skb
2058                  */
2059                 if (unlikely(!new_skb))
2060                         goto done;
2061 
2062                 pci_unmap_single(priv->pdev,
2063                                 *((dma_addr_t *)skb->cb),
2064                                 priv->rxbuffersize,
2065                                 PCI_DMA_FROMDEVICE);
2066 
2067                 skb_put(skb, pdesc->Length);
2068                 skb_reserve(skb, stats.RxDrvInfoSize +
2069                         stats.RxBufShift);
2070                 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2071                 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2072                 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2073                         /* unicast packet */
2074                         unicast_packet = true;
2075                 }
2076                 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2077                 type = WLAN_FC_GET_TYPE(fc);
2078                 if (type == RTLLIB_FTYPE_MGMT)
2079                         bLedBlinking = false;
2080 
2081                 if (bLedBlinking)
2082                         if (priv->rtllib->LedControlHandler)
2083                                 priv->rtllib->LedControlHandler(dev,
2084                                                         LED_CTL_RX);
2085 
2086                 if (stats.bCRC) {
2087                         if (type != RTLLIB_FTYPE_MGMT)
2088                                 priv->stats.rxdatacrcerr++;
2089                         else
2090                                 priv->stats.rxmgmtcrcerr++;
2091                 }
2092 
2093                 skb_len = skb->len;
2094 
2095                 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2096                         dev_kfree_skb_any(skb);
2097                 } else {
2098                         priv->stats.rxok++;
2099                         if (unicast_packet)
2100                                 priv->stats.rxbytesunicast += skb_len;
2101                 }
2102 
2103                 skb = new_skb;
2104                 skb->dev = dev;
2105 
2106                 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2107                                                                  skb;
2108                 *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
2109                                             skb_tail_pointer_rsl(skb),
2110                                             priv->rxbuffersize,
2111                                             PCI_DMA_FROMDEVICE);
2112                 if (pci_dma_mapping_error(priv->pdev,
2113                                           *((dma_addr_t *)skb->cb))) {
2114                         dev_kfree_skb_any(skb);
2115                         return;
2116                 }
2117 done:
2118                 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2119                 pdesc->OWN = 1;
2120                 pdesc->Length = priv->rxbuffersize;
2121                 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
2122                         pdesc->EOR = 1;
2123                 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2124                                               priv->rxringcount;
2125         }
2126 
2127 }
2128 
2129 static void _rtl92e_tx_resume(struct net_device *dev)
2130 {
2131         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2132         struct rtllib_device *ieee = priv->rtllib;
2133         struct sk_buff *skb;
2134         int queue_index;
2135 
2136         for (queue_index = BK_QUEUE;
2137              queue_index < MAX_QUEUE_SIZE; queue_index++) {
2138                 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2139                 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2140                         skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2141                         ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2142                 }
2143         }
2144 }
2145 
2146 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2147 {
2148         _rtl92e_tx_resume(priv->rtllib->dev);
2149 }
2150 
2151 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2152 {
2153         _rtl92e_rx_normal(priv->rtllib->dev);
2154 
2155         rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2156                       rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2157 }
2158 
2159 /****************************************************************************
2160  ---------------------------- NIC START/CLOSE STUFF---------------------------
2161 *****************************************************************************/
2162 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2163 {
2164         cancel_delayed_work(&priv->watch_dog_wq);
2165         cancel_delayed_work(&priv->update_beacon_wq);
2166         cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2167         cancel_work_sync(&priv->reset_wq);
2168         cancel_work_sync(&priv->qos_activate);
2169 }
2170 
2171 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2172 {
2173         if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2174                 return -1;
2175         return 0;
2176 }
2177 
2178 static int _rtl92e_open(struct net_device *dev)
2179 {
2180         struct r8192_priv *priv = rtllib_priv(dev);
2181         int ret;
2182 
2183         down(&priv->wx_sem);
2184         ret = _rtl92e_try_up(dev);
2185         up(&priv->wx_sem);
2186         return ret;
2187 
2188 }
2189 
2190 static int _rtl92e_try_up(struct net_device *dev)
2191 {
2192         struct r8192_priv *priv = rtllib_priv(dev);
2193 
2194         if (priv->up == 1)
2195                 return -1;
2196         return _rtl92e_up(dev, false);
2197 }
2198 
2199 
2200 static int _rtl92e_close(struct net_device *dev)
2201 {
2202         struct r8192_priv *priv = rtllib_priv(dev);
2203         int ret;
2204 
2205         if ((rtllib_act_scanning(priv->rtllib, false)) &&
2206                 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2207                 rtllib_stop_scan(priv->rtllib);
2208         }
2209 
2210         down(&priv->wx_sem);
2211 
2212         ret = _rtl92e_down(dev, true);
2213 
2214         up(&priv->wx_sem);
2215 
2216         return ret;
2217 
2218 }
2219 
2220 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2221 {
2222         if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2223                 return -1;
2224 
2225         return 0;
2226 }
2227 
2228 void rtl92e_commit(struct net_device *dev)
2229 {
2230         struct r8192_priv *priv = rtllib_priv(dev);
2231 
2232         if (priv->up == 0)
2233                 return;
2234         rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2235         rtl92e_irq_disable(dev);
2236         priv->ops->stop_adapter(dev, true);
2237         _rtl92e_up(dev, false);
2238 }
2239 
2240 static void _rtl92e_restart(void *data)
2241 {
2242         struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2243                                   reset_wq);
2244         struct net_device *dev = priv->rtllib->dev;
2245 
2246         down(&priv->wx_sem);
2247 
2248         rtl92e_commit(dev);
2249 
2250         up(&priv->wx_sem);
2251 }
2252 
2253 static void _rtl92e_set_multicast(struct net_device *dev)
2254 {
2255         struct r8192_priv *priv = rtllib_priv(dev);
2256         short promisc;
2257 
2258         promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2259         priv->promisc = promisc;
2260 
2261 }
2262 
2263 
2264 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2265 {
2266         struct r8192_priv *priv = rtllib_priv(dev);
2267         struct sockaddr *addr = mac;
2268 
2269         down(&priv->wx_sem);
2270 
2271         ether_addr_copy(dev->dev_addr, addr->sa_data);
2272 
2273         schedule_work(&priv->reset_wq);
2274         up(&priv->wx_sem);
2275 
2276         return 0;
2277 }
2278 
2279 /* based on ipw2200 driver */
2280 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2281 {
2282         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2283         struct iwreq *wrq = (struct iwreq *)rq;
2284         int ret = -1;
2285         struct rtllib_device *ieee = priv->rtllib;
2286         u32 key[4];
2287         const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2288         struct iw_point *p = &wrq->u.data;
2289         struct ieee_param *ipw = NULL;
2290 
2291         down(&priv->wx_sem);
2292 
2293         switch (cmd) {
2294         case RTL_IOCTL_WPA_SUPPLICANT:
2295                 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
2296                         ret = -EINVAL;
2297                         goto out;
2298                 }
2299 
2300                 ipw = memdup_user(p->pointer, p->length);
2301                 if (IS_ERR(ipw)) {
2302                         ret = PTR_ERR(ipw);
2303                         goto out;
2304                 }
2305 
2306                 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
2307                         if (ipw->u.crypt.set_tx) {
2308                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2309                                         ieee->pairwise_key_type = KEY_TYPE_CCMP;
2310                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2311                                         ieee->pairwise_key_type = KEY_TYPE_TKIP;
2312                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2313                                         if (ipw->u.crypt.key_len == 13)
2314                                                 ieee->pairwise_key_type =
2315                                                          KEY_TYPE_WEP104;
2316                                         else if (ipw->u.crypt.key_len == 5)
2317                                                 ieee->pairwise_key_type =
2318                                                          KEY_TYPE_WEP40;
2319                                 } else {
2320                                         ieee->pairwise_key_type = KEY_TYPE_NA;
2321                                 }
2322 
2323                                 if (ieee->pairwise_key_type) {
2324                                         if (is_zero_ether_addr(ieee->ap_mac_addr))
2325                                                 ieee->iw_mode = IW_MODE_ADHOC;
2326                                         memcpy((u8 *)key, ipw->u.crypt.key, 16);
2327                                         rtl92e_enable_hw_security_config(dev);
2328                                         rtl92e_set_swcam(dev, 4,
2329                                                          ipw->u.crypt.idx,
2330                                                          ieee->pairwise_key_type,
2331                                                          (u8 *)ieee->ap_mac_addr,
2332                                                          0, key, 0);
2333                                         rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
2334                                                        ieee->pairwise_key_type,
2335                                                        (u8 *)ieee->ap_mac_addr,
2336                                                        0, key);
2337                                         if (ieee->iw_mode == IW_MODE_ADHOC) {
2338                                                 rtl92e_set_swcam(dev,
2339                                                                  ipw->u.crypt.idx,
2340                                                                  ipw->u.crypt.idx,
2341                                                                  ieee->pairwise_key_type,
2342                                                                  (u8 *)ieee->ap_mac_addr,
2343                                                                  0, key, 0);
2344                                                 rtl92e_set_key(dev,
2345                                                                ipw->u.crypt.idx,
2346                                                                ipw->u.crypt.idx,
2347                                                                ieee->pairwise_key_type,
2348                                                                (u8 *)ieee->ap_mac_addr,
2349                                                                0, key);
2350                                         }
2351                                 }
2352                                 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
2353                                      && ieee->pHTInfo->bCurrentHTSupport) {
2354                                         rtl92e_writeb(dev, 0x173, 1);
2355                                 }
2356 
2357                         } else {
2358                                 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2359                                 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2360                                         ieee->group_key_type = KEY_TYPE_CCMP;
2361                                 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2362                                         ieee->group_key_type = KEY_TYPE_TKIP;
2363                                 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2364                                         if (ipw->u.crypt.key_len == 13)
2365                                                 ieee->group_key_type =
2366                                                          KEY_TYPE_WEP104;
2367                                         else if (ipw->u.crypt.key_len == 5)
2368                                                 ieee->group_key_type =
2369                                                          KEY_TYPE_WEP40;
2370                                 } else
2371                                         ieee->group_key_type = KEY_TYPE_NA;
2372 
2373                                 if (ieee->group_key_type) {
2374                                         rtl92e_set_swcam(dev, ipw->u.crypt.idx,
2375                                                          ipw->u.crypt.idx,
2376                                                          ieee->group_key_type,
2377                                                          broadcast_addr, 0, key,
2378                                                          0);
2379                                         rtl92e_set_key(dev, ipw->u.crypt.idx,
2380                                                        ipw->u.crypt.idx,
2381                                                        ieee->group_key_type,
2382                                                        broadcast_addr, 0, key);
2383                                 }
2384                         }
2385                 }
2386 
2387                 ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
2388                                                   0);
2389                 kfree(ipw);
2390                 break;
2391         default:
2392                 ret = -EOPNOTSUPP;
2393                 break;
2394         }
2395 
2396 out:
2397         up(&priv->wx_sem);
2398 
2399         return ret;
2400 }
2401 
2402 
2403 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2404 {
2405         struct net_device *dev = (struct net_device *) netdev;
2406         struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2407         unsigned long flags;
2408         u32 inta;
2409         u32 intb;
2410 
2411         intb = 0;
2412 
2413         if (priv->irq_enabled == 0)
2414                 goto done;
2415 
2416         spin_lock_irqsave(&priv->irq_th_lock, flags);
2417 
2418         priv->ops->interrupt_recognized(dev, &inta, &intb);
2419         priv->stats.shints++;
2420 
2421         if (!inta) {
2422                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2423                 goto done;
2424         }
2425 
2426         if (inta == 0xffff) {
2427                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2428                 goto done;
2429         }
2430 
2431         priv->stats.ints++;
2432 
2433         if (!netif_running(dev)) {
2434                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2435                 goto done;
2436         }
2437 
2438         if (inta & IMR_TBDOK) {
2439                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2440                 priv->stats.txbeaconokint++;
2441         }
2442 
2443         if (inta & IMR_TBDER) {
2444                 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2445                 priv->stats.txbeaconerr++;
2446         }
2447 
2448         if (inta & IMR_BDOK)
2449                 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2450 
2451         if (inta  & IMR_MGNTDOK) {
2452                 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2453                 priv->stats.txmanageokint++;
2454                 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2455                 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2456                 if (priv->rtllib->ack_tx_to_ieee) {
2457                         if (_rtl92e_is_tx_queue_empty(dev)) {
2458                                 priv->rtllib->ack_tx_to_ieee = 0;
2459                                 rtllib_ps_tx_ack(priv->rtllib, 1);
2460                         }
2461                 }
2462                 spin_lock_irqsave(&priv->irq_th_lock, flags);
2463         }
2464 
2465         if (inta & IMR_COMDOK) {
2466                 priv->stats.txcmdpktokint++;
2467                 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2468         }
2469 
2470         if (inta & IMR_HIGHDOK)
2471                 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2472 
2473         if (inta & IMR_ROK) {
2474                 priv->stats.rxint++;
2475                 priv->InterruptLog.nIMR_ROK++;
2476                 tasklet_schedule(&priv->irq_rx_tasklet);
2477         }
2478 
2479         if (inta & IMR_BcnInt) {
2480                 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2481                 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2482         }
2483 
2484         if (inta & IMR_RDU) {
2485                 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2486                 priv->stats.rxrdu++;
2487                 rtl92e_writel(dev, INTA_MASK,
2488                               rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2489                 tasklet_schedule(&priv->irq_rx_tasklet);
2490         }
2491 
2492         if (inta & IMR_RXFOVW) {
2493                 RT_TRACE(COMP_INTR, "rx overflow !\n");
2494                 priv->stats.rxoverflow++;
2495                 tasklet_schedule(&priv->irq_rx_tasklet);
2496         }
2497 
2498         if (inta & IMR_TXFOVW)
2499                 priv->stats.txoverflow++;
2500 
2501         if (inta & IMR_BKDOK) {
2502                 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2503                 priv->stats.txbkokint++;
2504                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2505                 _rtl92e_tx_isr(dev, BK_QUEUE);
2506         }
2507 
2508         if (inta & IMR_BEDOK) {
2509                 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2510                 priv->stats.txbeokint++;
2511                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2512                 _rtl92e_tx_isr(dev, BE_QUEUE);
2513         }
2514 
2515         if (inta & IMR_VIDOK) {
2516                 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2517                 priv->stats.txviokint++;
2518                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2519                 _rtl92e_tx_isr(dev, VI_QUEUE);
2520         }
2521 
2522         if (inta & IMR_VODOK) {
2523                 priv->stats.txvookint++;
2524                 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2525                 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2526                 _rtl92e_tx_isr(dev, VO_QUEUE);
2527         }
2528 
2529         spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2530 
2531 done:
2532 
2533         return IRQ_HANDLED;
2534 }
2535 
2536 
2537 
2538 /****************************************************************************
2539         ---------------------------- PCI_STUFF---------------------------
2540 *****************************************************************************/
2541 static const struct net_device_ops rtl8192_netdev_ops = {
2542         .ndo_open = _rtl92e_open,
2543         .ndo_stop = _rtl92e_close,
2544         .ndo_tx_timeout = _rtl92e_tx_timeout,
2545         .ndo_do_ioctl = _rtl92e_ioctl,
2546         .ndo_set_rx_mode = _rtl92e_set_multicast,
2547         .ndo_set_mac_address = _rtl92e_set_mac_adr,
2548         .ndo_validate_addr = eth_validate_addr,
2549         .ndo_change_mtu = eth_change_mtu,
2550         .ndo_start_xmit = rtllib_xmit,
2551 };
2552 
2553 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2554                              const struct pci_device_id *id)
2555 {
2556         unsigned long ioaddr = 0;
2557         struct net_device *dev = NULL;
2558         struct r8192_priv *priv = NULL;
2559         struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2560         unsigned long pmem_start, pmem_len, pmem_flags;
2561         int err = -ENOMEM;
2562         u8 revision_id;
2563 
2564         RT_TRACE(COMP_INIT, "Configuring chip resources");
2565 
2566         if (pci_enable_device(pdev)) {
2567                 dev_err(&pdev->dev, "Failed to enable PCI device");
2568                 return -EIO;
2569         }
2570 
2571         pci_set_master(pdev);
2572 
2573         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2574                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2575                         dev_info(&pdev->dev,
2576                                  "Unable to obtain 32bit DMA for consistent allocations\n");
2577                         goto err_pci_disable;
2578                 }
2579         }
2580         dev = alloc_rtllib(sizeof(struct r8192_priv));
2581         if (!dev)
2582                 goto err_pci_disable;
2583 
2584         err = -ENODEV;
2585 
2586         pci_set_drvdata(pdev, dev);
2587         SET_NETDEV_DEV(dev, &pdev->dev);
2588         priv = rtllib_priv(dev);
2589         priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2590         priv->pdev = pdev;
2591         priv->rtllib->pdev = pdev;
2592         if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2593             (pdev->subsystem_device == 0x3304))
2594                 priv->rtllib->bSupportRemoteWakeUp = 1;
2595         else
2596                 priv->rtllib->bSupportRemoteWakeUp = 0;
2597 
2598         pmem_start = pci_resource_start(pdev, 1);
2599         pmem_len = pci_resource_len(pdev, 1);
2600         pmem_flags = pci_resource_flags(pdev, 1);
2601 
2602         if (!(pmem_flags & IORESOURCE_MEM)) {
2603                 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2604                 goto err_rel_rtllib;
2605         }
2606 
2607         dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2608                  pmem_start);
2609         if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2610                 netdev_err(dev, "request_mem_region failed!");
2611                 goto err_rel_rtllib;
2612         }
2613 
2614 
2615         ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2616         if (ioaddr == (unsigned long)NULL) {
2617                 netdev_err(dev, "ioremap failed!");
2618                 goto err_rel_mem;
2619         }
2620 
2621         dev->mem_start = ioaddr;
2622         dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2623 
2624         pci_read_config_byte(pdev, 0x08, &revision_id);
2625         /* If the revisionid is 0x10, the device uses rtl8192se. */
2626         if (pdev->device == 0x8192 && revision_id == 0x10)
2627                 goto err_unmap;
2628 
2629         priv->ops = ops;
2630 
2631         if (rtl92e_check_adapter(pdev, dev) == false)
2632                 goto err_unmap;
2633 
2634         dev->irq = pdev->irq;
2635         priv->irq = 0;
2636 
2637         dev->netdev_ops = &rtl8192_netdev_ops;
2638 
2639         dev->wireless_handlers = &r8192_wx_handlers_def;
2640         dev->ethtool_ops = &rtl819x_ethtool_ops;
2641 
2642         dev->type = ARPHRD_ETHER;
2643         dev->watchdog_timeo = HZ * 3;
2644 
2645         if (dev_alloc_name(dev, ifname) < 0) {
2646                 RT_TRACE(COMP_INIT,
2647                          "Oops: devname already taken! Trying wlan%%d...\n");
2648                         dev_alloc_name(dev, ifname);
2649         }
2650 
2651         RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2652         if (_rtl92e_init(dev) != 0) {
2653                 netdev_warn(dev, "Initialization failed");
2654                 goto err_free_irq;
2655         }
2656 
2657         netif_carrier_off(dev);
2658         netif_stop_queue(dev);
2659 
2660         if (register_netdev(dev))
2661                 goto err_free_irq;
2662         RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2663 
2664         if (priv->polling_timer_on == 0)
2665                 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
2666 
2667         RT_TRACE(COMP_INIT, "Driver probe completed\n");
2668         return 0;
2669 
2670 err_free_irq:
2671         free_irq(dev->irq, dev);
2672         priv->irq = 0;
2673 err_unmap:
2674         iounmap((void __iomem *)ioaddr);
2675 err_rel_mem:
2676         release_mem_region(pmem_start, pmem_len);
2677 err_rel_rtllib:
2678         free_rtllib(dev);
2679 err_pci_disable:
2680         pci_disable_device(pdev);
2681         return err;
2682 }
2683 
2684 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2685 {
2686         struct net_device *dev = pci_get_drvdata(pdev);
2687         struct r8192_priv *priv;
2688         u32 i;
2689 
2690         if (dev) {
2691                 unregister_netdev(dev);
2692 
2693                 priv = rtllib_priv(dev);
2694 
2695                 del_timer_sync(&priv->gpio_polling_timer);
2696                 cancel_delayed_work(&priv->gpio_change_rf_wq);
2697                 priv->polling_timer_on = 0;
2698                 _rtl92e_down(dev, true);
2699                 rtl92e_dm_deinit(dev);
2700                 if (priv->pFirmware) {
2701                         vfree(priv->pFirmware);
2702                         priv->pFirmware = NULL;
2703                 }
2704                 destroy_workqueue(priv->priv_wq);
2705                 _rtl92e_free_rx_ring(dev);
2706                 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2707                         _rtl92e_free_tx_ring(dev, i);
2708 
2709                 if (priv->irq) {
2710                         dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2711                         free_irq(dev->irq, dev);
2712                         priv->irq = 0;
2713                 }
2714                 free_rtllib(dev);
2715 
2716                 if (dev->mem_start != 0) {
2717                         iounmap((void __iomem *)dev->mem_start);
2718                         release_mem_region(pci_resource_start(pdev, 1),
2719                                         pci_resource_len(pdev, 1));
2720                 }
2721         } else {
2722                 priv = rtllib_priv(dev);
2723         }
2724 
2725         pci_disable_device(pdev);
2726         RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2727 }
2728 
2729 bool rtl92e_enable_nic(struct net_device *dev)
2730 {
2731         bool init_status = true;
2732         struct r8192_priv *priv = rtllib_priv(dev);
2733         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2734                                         (&(priv->rtllib->PowerSaveControl));
2735 
2736         if (!priv->up) {
2737                 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2738                 priv->bdisable_nic = false;
2739                 return false;
2740         }
2741 
2742         RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2743         priv->bfirst_init = true;
2744         init_status = priv->ops->initialize_adapter(dev);
2745         if (!init_status) {
2746                 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2747                 priv->bdisable_nic = false;
2748                 return false;
2749         }
2750         RT_TRACE(COMP_INIT, "start adapter finished\n");
2751         RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2752         priv->bfirst_init = false;
2753 
2754         rtl92e_irq_enable(dev);
2755         priv->bdisable_nic = false;
2756         RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2757         return init_status;
2758 }
2759 bool rtl92e_disable_nic(struct net_device *dev)
2760 {
2761         struct r8192_priv *priv = rtllib_priv(dev);
2762         u8 tmp_state = 0;
2763 
2764         RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2765         priv->bdisable_nic = true;
2766         tmp_state = priv->rtllib->state;
2767         rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2768         priv->rtllib->state = tmp_state;
2769         _rtl92e_cancel_deferred_work(priv);
2770         rtl92e_irq_disable(dev);
2771 
2772         priv->ops->stop_adapter(dev, false);
2773         RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2774 
2775         return true;
2776 }
2777 
2778 module_pci_driver(rtl8192_pci_driver);
2779 
2780 void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
2781 {
2782         struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
2783 
2784         priv->polling_timer_on = 1;
2785 
2786         queue_delayed_work_rsl(priv->priv_wq, &priv->gpio_change_rf_wq, 0);
2787 
2788         mod_timer(&priv->gpio_polling_timer, jiffies +
2789                   msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2790 }
2791 
2792 /***************************************************************************
2793         ------------------- module init / exit stubs ----------------
2794 ****************************************************************************/
2795 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2796 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2797 MODULE_VERSION(DRV_VERSION);
2798 MODULE_LICENSE("GPL");
2799 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2800 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2801 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2802 
2803 module_param(ifname, charp, S_IRUGO|S_IWUSR);
2804 module_param(hwwep, int, S_IRUGO|S_IWUSR);
2805 module_param(channels, int, S_IRUGO|S_IWUSR);
2806 
2807 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2808 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2809 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2810 

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