1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * Based on the r8180 driver, which is:
5 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * The full GNU General Public License is included in this distribution in the
16 * file called LICENSE.
17 *
18 * Contact Information:
19 * wlanfae <wlanfae@realtek.com>
20 *****************************************************************************/
21 #include <linux/uaccess.h>
22 #include <linux/pci.h>
23 #include <linux/vmalloc.h>
24 #include <linux/ieee80211.h>
25 #include "rtl_core.h"
26 #include "r8192E_phy.h"
27 #include "r8192E_phyreg.h"
28 #include "r8190P_rtl8256.h"
29 #include "r8192E_cmdpkt.h"
30
31 #include "rtl_wx.h"
32 #include "rtl_dm.h"
33
34 #include "rtl_pm.h"
35
36 int hwwep = 1;
37 static int channels = 0x3fff;
38 static char *ifname = "wlan%d";
39
40
41 static const struct rtl819x_ops rtl819xp_ops = {
42 .nic_type = NIC_8192E,
43 .get_eeprom_size = rtl92e_get_eeprom_size,
44 .init_adapter_variable = rtl92e_init_variables,
45 .initialize_adapter = rtl92e_start_adapter,
46 .link_change = rtl92e_link_change,
47 .tx_fill_descriptor = rtl92e_fill_tx_desc,
48 .tx_fill_cmd_descriptor = rtl92e_fill_tx_cmd_desc,
49 .rx_query_status_descriptor = rtl92e_get_rx_stats,
50 .rx_command_packet_handler = NULL,
51 .stop_adapter = rtl92e_stop_adapter,
52 .update_ratr_table = rtl92e_update_ratr_table,
53 .irq_enable = rtl92e_enable_irq,
54 .irq_disable = rtl92e_disable_irq,
55 .irq_clear = rtl92e_clear_irq,
56 .rx_enable = rtl92e_enable_rx,
57 .tx_enable = rtl92e_enable_tx,
58 .interrupt_recognized = rtl92e_ack_irq,
59 .TxCheckStuckHandler = rtl92e_is_tx_stuck,
60 .RxCheckStuckHandler = rtl92e_is_rx_stuck,
61 };
62
63 static struct pci_device_id rtl8192_pci_id_tbl[] = {
64 {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
65 {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
66 {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
67 {}
68 };
69
70 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
71
72 static int _rtl92e_pci_probe(struct pci_dev *pdev,
73 const struct pci_device_id *id);
74 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
75 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
76
77 static struct pci_driver rtl8192_pci_driver = {
78 .name = DRV_NAME, /* Driver name */
79 .id_table = rtl8192_pci_id_tbl, /* PCI_ID table */
80 .probe = _rtl92e_pci_probe, /* probe fn */
81 .remove = _rtl92e_pci_disconnect, /* remove fn */
82 .suspend = rtl92e_suspend, /* PM suspend fn */
83 .resume = rtl92e_resume, /* PM resume fn */
84 };
85
86 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
87 static void _rtl92e_watchdog_wq_cb(void *data);
88 static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
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
rtl92e_readb(struct net_device * dev,int x)107 u8 rtl92e_readb(struct net_device *dev, int x)
108 {
109 return 0xff & readb((u8 __iomem *)dev->mem_start + x);
110 }
111
rtl92e_readl(struct net_device * dev,int x)112 u32 rtl92e_readl(struct net_device *dev, int x)
113 {
114 return readl((u8 __iomem *)dev->mem_start + x);
115 }
116
rtl92e_readw(struct net_device * dev,int x)117 u16 rtl92e_readw(struct net_device *dev, int x)
118 {
119 return readw((u8 __iomem *)dev->mem_start + x);
120 }
121
rtl92e_writeb(struct net_device * dev,int x,u8 y)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
rtl92e_writel(struct net_device * dev,int x,u32 y)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
rtl92e_writew(struct net_device * dev,int x,u16 y)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 ****************************************************************************/
rtl92e_set_rf_state(struct net_device * dev,enum rt_rf_power_state StateToSet,RT_RF_CHANGE_SOURCE ChangeSource)146 bool rtl92e_set_rf_state(struct net_device *dev,
147 enum rt_rf_power_state StateToSet,
148 RT_RF_CHANGE_SOURCE ChangeSource)
149 {
150 struct r8192_priv *priv = rtllib_priv(dev);
151 struct rtllib_device *ieee = priv->rtllib;
152 bool bActionAllowed = false;
153 bool bConnectBySSID = false;
154 enum rt_rf_power_state rtState;
155 u16 RFWaitCounter = 0;
156 unsigned long flag;
157
158 RT_TRACE((COMP_PS | COMP_RF),
159 "===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
160
161 while (true) {
162 spin_lock_irqsave(&priv->rf_ps_lock, flag);
163 if (priv->RFChangeInProgress) {
164 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
165 RT_TRACE((COMP_PS | COMP_RF),
166 "rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
167 StateToSet);
168
169 while (priv->RFChangeInProgress) {
170 RFWaitCounter++;
171 RT_TRACE((COMP_PS | COMP_RF),
172 "rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
173 RFWaitCounter);
174 mdelay(1);
175
176 if (RFWaitCounter > 100) {
177 netdev_warn(dev,
178 "%s(): Timeout waiting for RF change.\n",
179 __func__);
180 return false;
181 }
182 }
183 } else {
184 priv->RFChangeInProgress = true;
185 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
186 break;
187 }
188 }
189
190 rtState = priv->rtllib->eRFPowerState;
191
192 switch (StateToSet) {
193 case eRfOn:
194 priv->rtllib->RfOffReason &= (~ChangeSource);
195
196 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
197 priv->bHwRadioOff = false;
198
199 if (!priv->rtllib->RfOffReason) {
200 priv->rtllib->RfOffReason = 0;
201 bActionAllowed = true;
202
203
204 if (rtState == eRfOff &&
205 ChangeSource >= RF_CHANGE_BY_HW)
206 bConnectBySSID = true;
207 } else {
208 RT_TRACE((COMP_PS | COMP_RF),
209 "rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
210 priv->rtllib->RfOffReason, ChangeSource);
211 }
212
213 break;
214
215 case eRfOff:
216
217 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
218 (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
219 if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
220 (ChangeSource > RF_CHANGE_BY_IPS)) {
221 if (ieee->state == RTLLIB_LINKED)
222 priv->blinked_ingpio = true;
223 else
224 priv->blinked_ingpio = false;
225 rtllib_MgntDisconnect(priv->rtllib,
226 WLAN_REASON_DISASSOC_STA_HAS_LEFT);
227 }
228 }
229 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
230 priv->bHwRadioOff = true;
231 priv->rtllib->RfOffReason |= ChangeSource;
232 bActionAllowed = true;
233 break;
234
235 case eRfSleep:
236 priv->rtllib->RfOffReason |= ChangeSource;
237 bActionAllowed = true;
238 break;
239
240 default:
241 break;
242 }
243
244 if (bActionAllowed) {
245 RT_TRACE((COMP_PS | COMP_RF),
246 "rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
247 StateToSet, priv->rtllib->RfOffReason);
248 PHY_SetRFPowerState(dev, StateToSet);
249 if (StateToSet == eRfOn) {
250
251 if (bConnectBySSID && priv->blinked_ingpio) {
252 schedule_delayed_work(
253 &ieee->associate_procedure_wq, 0);
254 priv->blinked_ingpio = false;
255 }
256 }
257 } else {
258 RT_TRACE((COMP_PS | COMP_RF),
259 "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
260 StateToSet, ChangeSource, priv->rtllib->RfOffReason);
261 }
262
263 spin_lock_irqsave(&priv->rf_ps_lock, flag);
264 priv->RFChangeInProgress = false;
265 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
266
267 RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
268 return bActionAllowed;
269 }
270
_rtl92e_check_nic_enough_desc(struct net_device * dev,int prio)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
_rtl92e_tx_timeout(struct net_device * dev)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
rtl92e_irq_enable(struct net_device * dev)289 void rtl92e_irq_enable(struct net_device *dev)
290 {
291 struct r8192_priv *priv = rtllib_priv(dev);
292
293 priv->irq_enabled = 1;
294
295 priv->ops->irq_enable(dev);
296 }
297
rtl92e_irq_disable(struct net_device * dev)298 void rtl92e_irq_disable(struct net_device *dev)
299 {
300 struct r8192_priv *priv = rtllib_priv(dev);
301
302 priv->ops->irq_disable(dev);
303
304 priv->irq_enabled = 0;
305 }
306
_rtl92e_set_chan(struct net_device * dev,short ch)307 static void _rtl92e_set_chan(struct net_device *dev, short ch)
308 {
309 struct r8192_priv *priv = rtllib_priv(dev);
310
311 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
312 if (priv->chan_forced)
313 return;
314
315 priv->chan = ch;
316
317 if (priv->rf_set_chan)
318 priv->rf_set_chan(dev, priv->chan);
319 }
320
_rtl92e_update_cap(struct net_device * dev,u16 cap)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 const 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
_rtl92e_update_beacon(void * data)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
_rtl92e_qos_activate(void * data)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
_rtl92e_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct rtllib_network * network)415 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
416 int active_network,
417 struct rtllib_network *network)
418 {
419 int ret = 0;
420 u32 size = sizeof(struct rtllib_qos_parameters);
421
422 if (priv->rtllib->state != RTLLIB_LINKED)
423 return ret;
424
425 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
426 return ret;
427
428 if (network->flags & NETWORK_HAS_QOS_MASK) {
429 if (active_network &&
430 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
431 network->qos_data.active = network->qos_data.supported;
432
433 if ((network->qos_data.active == 1) && (active_network == 1) &&
434 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
435 (network->qos_data.old_param_count !=
436 network->qos_data.param_count)) {
437 network->qos_data.old_param_count =
438 network->qos_data.param_count;
439 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
440 schedule_work(&priv->qos_activate);
441 RT_TRACE(COMP_QOS,
442 "QoS parameters change call qos_activate\n");
443 }
444 } else {
445 memcpy(&priv->rtllib->current_network.qos_data.parameters,
446 &def_qos_parameters, size);
447
448 if ((network->qos_data.active == 1) && (active_network == 1)) {
449 schedule_work(&priv->qos_activate);
450 RT_TRACE(COMP_QOS,
451 "QoS was disabled call qos_activate\n");
452 }
453 network->qos_data.active = 0;
454 network->qos_data.supported = 0;
455 }
456
457 return 0;
458 }
459
_rtl92e_handle_beacon(struct net_device * dev,struct rtllib_beacon * beacon,struct rtllib_network * network)460 static int _rtl92e_handle_beacon(struct net_device *dev,
461 struct rtllib_beacon *beacon,
462 struct rtllib_network *network)
463 {
464 struct r8192_priv *priv = rtllib_priv(dev);
465
466 _rtl92e_qos_handle_probe_response(priv, 1, network);
467
468 schedule_delayed_work(&priv->update_beacon_wq, 0);
469 return 0;
470
471 }
472
_rtl92e_qos_assoc_resp(struct r8192_priv * priv,struct rtllib_network * network)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 || !network)
481 return 0;
482
483 if (priv->rtllib->state != RTLLIB_LINKED)
484 return 0;
485
486 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
487 return 0;
488
489 spin_lock_irqsave(&priv->rtllib->lock, flags);
490 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
491 memcpy(&priv->rtllib->current_network.qos_data.parameters,
492 &network->qos_data.parameters,
493 sizeof(struct rtllib_qos_parameters));
494 priv->rtllib->current_network.qos_data.active = 1;
495 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
496 set_qos_param = 1;
497 priv->rtllib->current_network.qos_data.old_param_count =
498 priv->rtllib->current_network.qos_data.param_count;
499 priv->rtllib->current_network.qos_data.param_count =
500 network->qos_data.param_count;
501 } else {
502 memcpy(&priv->rtllib->current_network.qos_data.parameters,
503 &def_qos_parameters, size);
504 priv->rtllib->current_network.qos_data.active = 0;
505 priv->rtllib->current_network.qos_data.supported = 0;
506 set_qos_param = 1;
507 }
508
509 spin_unlock_irqrestore(&priv->rtllib->lock, flags);
510
511 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
512 network->flags, priv->rtllib->current_network.qos_data.active);
513 if (set_qos_param == 1) {
514 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
515 schedule_work(&priv->qos_activate);
516 }
517 return 0;
518 }
519
_rtl92e_handle_assoc_response(struct net_device * dev,struct rtllib_assoc_response_frame * resp,struct rtllib_network * network)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
_rtl92e_prepare_beacon(struct r8192_priv * priv)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
_rtl92e_stop_beacon(struct net_device * dev)560 static void _rtl92e_stop_beacon(struct net_device *dev)
561 {
562 }
563
rtl92e_config_rate(struct net_device * dev,u16 * rate_config)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
_rtl92e_refresh_support_rate(struct r8192_priv * priv)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
_rtl92e_get_supported_wireless_mode(struct net_device * dev)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
rtl92e_set_wireless_mode(struct net_device * dev,u8 wireless_mode)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
_rtl92e_sta_up(struct net_device * dev,bool is_silent_reset)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(&priv->gpio_polling_timer);
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(&priv->watch_dog_timer);
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
_rtl92e_sta_down(struct net_device * dev,bool shutdownrf)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)
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
_rtl92e_init_priv_handler(struct net_device * dev)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
_rtl92e_init_priv_constant(struct net_device * dev)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
_rtl92e_init_priv_variable(struct net_device * dev)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
_rtl92e_init_priv_lock(struct r8192_priv * priv)990 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
991 {
992 spin_lock_init(&priv->tx_lock);
993 spin_lock_init(&priv->irq_th_lock);
994 spin_lock_init(&priv->rf_ps_lock);
995 spin_lock_init(&priv->ps_lock);
996 mutex_init(&priv->wx_mutex);
997 mutex_init(&priv->rf_mutex);
998 mutex_init(&priv->mutex);
999 }
1000
_rtl92e_init_priv_task(struct net_device * dev)1001 static void _rtl92e_init_priv_task(struct net_device *dev)
1002 {
1003 struct r8192_priv *priv = rtllib_priv(dev);
1004
1005 INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1006 INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1007 dev);
1008 INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1009 (void *)_rtl92e_watchdog_wq_cb, dev);
1010 INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1011 (void *)rtl92e_dm_txpower_tracking_wq, dev);
1012 INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1013 (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1014 INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1015 (void *)_rtl92e_update_beacon, dev);
1016 INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1017 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1018 (void *)rtl92e_hw_wakeup_wq, dev);
1019 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1020 (void *)rtl92e_hw_sleep_wq, dev);
1021 tasklet_init(&priv->irq_rx_tasklet,
1022 (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1023 (unsigned long)priv);
1024 tasklet_init(&priv->irq_tx_tasklet,
1025 (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1026 (unsigned long)priv);
1027 tasklet_init(&priv->irq_prepare_beacon_tasklet,
1028 (void(*)(unsigned long))_rtl92e_prepare_beacon,
1029 (unsigned long)priv);
1030 }
1031
_rtl92e_get_channel_map(struct net_device * dev)1032 static short _rtl92e_get_channel_map(struct net_device *dev)
1033 {
1034 int i;
1035
1036 struct r8192_priv *priv = rtllib_priv(dev);
1037
1038 if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
1039 (priv->rf_chip != RF_6052)) {
1040 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1041 __func__);
1042 return -1;
1043 }
1044
1045 if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1046 netdev_info(dev,
1047 "rtl819x_init:Error channel plan! Set to default.\n");
1048 priv->ChannelPlan = COUNTRY_CODE_FCC;
1049 }
1050 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1051 dot11d_init(priv->rtllib);
1052 Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1053 for (i = 1; i <= 11; i++)
1054 (priv->rtllib->active_channel_map)[i] = 1;
1055 (priv->rtllib->active_channel_map)[12] = 2;
1056 (priv->rtllib->active_channel_map)[13] = 2;
1057
1058 return 0;
1059 }
1060
_rtl92e_init(struct net_device * dev)1061 static short _rtl92e_init(struct net_device *dev)
1062 {
1063 struct r8192_priv *priv = rtllib_priv(dev);
1064
1065 memset(&priv->stats, 0, sizeof(struct rt_stats));
1066
1067 _rtl92e_init_priv_handler(dev);
1068 _rtl92e_init_priv_constant(dev);
1069 _rtl92e_init_priv_variable(dev);
1070 _rtl92e_init_priv_lock(priv);
1071 _rtl92e_init_priv_task(dev);
1072 priv->ops->get_eeprom_size(dev);
1073 priv->ops->init_adapter_variable(dev);
1074 _rtl92e_get_channel_map(dev);
1075
1076 rtl92e_dm_init(dev);
1077
1078 timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
1079
1080 timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
1081 0);
1082
1083 rtl92e_irq_disable(dev);
1084 if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1085 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1086 return -1;
1087 }
1088
1089 priv->irq = dev->irq;
1090 RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1091
1092 if (_rtl92e_pci_initdescring(dev) != 0) {
1093 netdev_err(dev, "Endopoints initialization failed");
1094 free_irq(dev->irq, dev);
1095 return -1;
1096 }
1097
1098 return 0;
1099 }
1100
1101 /***************************************************************************
1102 * -------------------------------WATCHDOG STUFF---------------------------
1103 **************************************************************************/
_rtl92e_is_tx_queue_empty(struct net_device * dev)1104 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1105 {
1106 int i = 0;
1107 struct r8192_priv *priv = rtllib_priv(dev);
1108
1109 for (i = 0; i <= MGNT_QUEUE; i++) {
1110 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1111 continue;
1112 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1113 netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1114 i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1115 return 0;
1116 }
1117 }
1118 return 1;
1119 }
1120
_rtl92e_tx_check_stuck(struct net_device * dev)1121 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1122 {
1123 struct r8192_priv *priv = rtllib_priv(dev);
1124 u8 QueueID;
1125 bool bCheckFwTxCnt = false;
1126 struct rtl8192_tx_ring *ring = NULL;
1127 struct sk_buff *skb = NULL;
1128 struct cb_desc *tcb_desc = NULL;
1129 unsigned long flags = 0;
1130
1131 switch (priv->rtllib->ps) {
1132 case RTLLIB_PS_DISABLED:
1133 break;
1134 case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1135 break;
1136 default:
1137 break;
1138 }
1139 spin_lock_irqsave(&priv->irq_th_lock, flags);
1140 for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1141 if (QueueID == TXCMD_QUEUE)
1142 continue;
1143
1144 if (QueueID == BEACON_QUEUE)
1145 continue;
1146
1147 ring = &priv->tx_ring[QueueID];
1148
1149 if (skb_queue_len(&ring->queue) == 0) {
1150 continue;
1151 } else {
1152 skb = (&ring->queue)->next;
1153 tcb_desc = (struct cb_desc *)(skb->cb +
1154 MAX_DEV_ADDR_SIZE);
1155 tcb_desc->nStuckCount++;
1156 bCheckFwTxCnt = true;
1157 if (tcb_desc->nStuckCount > 1)
1158 netdev_info(dev,
1159 "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1160 __func__, QueueID,
1161 tcb_desc->nStuckCount);
1162 }
1163 }
1164 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1165
1166 if (bCheckFwTxCnt) {
1167 if (priv->ops->TxCheckStuckHandler(dev)) {
1168 RT_TRACE(COMP_RESET,
1169 "TxCheckStuck(): Fw indicates no Tx condition!\n");
1170 return RESET_TYPE_SILENT;
1171 }
1172 }
1173
1174 return RESET_TYPE_NORESET;
1175 }
1176
_rtl92e_rx_check_stuck(struct net_device * dev)1177 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1178 {
1179 struct r8192_priv *priv = rtllib_priv(dev);
1180
1181 if (priv->ops->RxCheckStuckHandler(dev)) {
1182 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1183 return RESET_TYPE_SILENT;
1184 }
1185
1186 return RESET_TYPE_NORESET;
1187 }
1188
_rtl92e_if_check_reset(struct net_device * dev)1189 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1190 {
1191 struct r8192_priv *priv = rtllib_priv(dev);
1192 enum reset_type TxResetType = RESET_TYPE_NORESET;
1193 enum reset_type RxResetType = RESET_TYPE_NORESET;
1194 enum rt_rf_power_state rfState;
1195
1196 rfState = priv->rtllib->eRFPowerState;
1197
1198 if (rfState == eRfOn)
1199 TxResetType = _rtl92e_tx_check_stuck(dev);
1200
1201 if (rfState == eRfOn &&
1202 (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1203 (priv->rtllib->state == RTLLIB_LINKED))
1204 RxResetType = _rtl92e_rx_check_stuck(dev);
1205
1206 if (TxResetType == RESET_TYPE_NORMAL ||
1207 RxResetType == RESET_TYPE_NORMAL) {
1208 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1209 __func__, TxResetType, RxResetType);
1210 return RESET_TYPE_NORMAL;
1211 } else if (TxResetType == RESET_TYPE_SILENT ||
1212 RxResetType == RESET_TYPE_SILENT) {
1213 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1214 __func__, TxResetType, RxResetType);
1215 return RESET_TYPE_SILENT;
1216 } else {
1217 return RESET_TYPE_NORESET;
1218 }
1219
1220 }
1221
_rtl92e_if_silent_reset(struct net_device * dev)1222 static void _rtl92e_if_silent_reset(struct net_device *dev)
1223 {
1224 struct r8192_priv *priv = rtllib_priv(dev);
1225 u8 reset_times = 0;
1226 int reset_status = 0;
1227 struct rtllib_device *ieee = priv->rtllib;
1228 unsigned long flag;
1229
1230 if (priv->ResetProgress == RESET_TYPE_NORESET) {
1231
1232 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1233
1234 priv->ResetProgress = RESET_TYPE_SILENT;
1235
1236 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1237 if (priv->RFChangeInProgress) {
1238 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1239 goto END;
1240 }
1241 priv->RFChangeInProgress = true;
1242 priv->bResetInProgress = true;
1243 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1244
1245 RESET_START:
1246
1247 mutex_lock(&priv->wx_mutex);
1248
1249 if (priv->rtllib->state == RTLLIB_LINKED)
1250 rtl92e_leisure_ps_leave(dev);
1251
1252 if (priv->up) {
1253 netdev_info(dev, "%s():the driver is not up.\n",
1254 __func__);
1255 mutex_unlock(&priv->wx_mutex);
1256 return;
1257 }
1258 priv->up = 0;
1259
1260 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1261 __func__);
1262 mdelay(1000);
1263 RT_TRACE(COMP_RESET,
1264 "%s():111111111111111111111111======>start to down the driver\n",
1265 __func__);
1266
1267 if (!netif_queue_stopped(dev))
1268 netif_stop_queue(dev);
1269
1270 rtl92e_irq_disable(dev);
1271 del_timer_sync(&priv->watch_dog_timer);
1272 _rtl92e_cancel_deferred_work(priv);
1273 rtl92e_dm_deinit(dev);
1274 rtllib_stop_scan_syncro(ieee);
1275
1276 if (ieee->state == RTLLIB_LINKED) {
1277 mutex_lock(&ieee->wx_mutex);
1278 netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1279 rtllib_stop_send_beacons(priv->rtllib);
1280 del_timer_sync(&ieee->associate_timer);
1281 cancel_delayed_work(&ieee->associate_retry_wq);
1282 rtllib_stop_scan(ieee);
1283 netif_carrier_off(dev);
1284 mutex_unlock(&ieee->wx_mutex);
1285 } else {
1286 netdev_info(dev, "ieee->state is NOT LINKED\n");
1287 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1288 }
1289
1290 rtl92e_dm_backup_state(dev);
1291
1292 mutex_unlock(&priv->wx_mutex);
1293 RT_TRACE(COMP_RESET,
1294 "%s():<==========down process is finished\n",
1295 __func__);
1296
1297 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1298 __func__);
1299 reset_status = _rtl92e_up(dev, true);
1300
1301 RT_TRACE(COMP_RESET,
1302 "%s():<===========up process is finished\n", __func__);
1303 if (reset_status == -1) {
1304 if (reset_times < 3) {
1305 reset_times++;
1306 goto RESET_START;
1307 } else {
1308 netdev_warn(dev, "%s(): Reset Failed\n",
1309 __func__);
1310 }
1311 }
1312
1313 ieee->is_silent_reset = 1;
1314
1315 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1316 priv->RFChangeInProgress = false;
1317 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1318
1319 rtl92e_enable_hw_security_config(dev);
1320
1321 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1322 IW_MODE_INFRA) {
1323 ieee->set_chan(ieee->dev,
1324 ieee->current_network.channel);
1325
1326 schedule_work(&ieee->associate_complete_wq);
1327
1328 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1329 IW_MODE_ADHOC) {
1330 ieee->set_chan(ieee->dev,
1331 ieee->current_network.channel);
1332 ieee->link_change(ieee->dev);
1333
1334 notify_wx_assoc_event(ieee);
1335
1336 rtllib_start_send_beacons(ieee);
1337
1338 netif_carrier_on(ieee->dev);
1339 }
1340
1341 rtl92e_cam_restore(dev);
1342 rtl92e_dm_restore_state(dev);
1343 END:
1344 priv->ResetProgress = RESET_TYPE_NORESET;
1345 priv->reset_count++;
1346
1347 priv->bForcedSilentReset = false;
1348 priv->bResetInProgress = false;
1349
1350 rtl92e_writeb(dev, UFWP, 1);
1351 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1352 priv->reset_count);
1353 }
1354 }
1355
_rtl92e_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)1356 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1357 u32 *TotalRxDataNum)
1358 {
1359 u16 SlotIndex;
1360 u8 i;
1361
1362 *TotalRxBcnNum = 0;
1363 *TotalRxDataNum = 0;
1364
1365 SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1366 (priv->rtllib->LinkDetectInfo.SlotNum);
1367 priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1368 priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1369 priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1370 priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1371 for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1372 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1373 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1374 }
1375 }
1376
_rtl92e_watchdog_wq_cb(void * data)1377 static void _rtl92e_watchdog_wq_cb(void *data)
1378 {
1379 struct r8192_priv *priv = container_of_dwork_rsl(data,
1380 struct r8192_priv, watch_dog_wq);
1381 struct net_device *dev = priv->rtllib->dev;
1382 struct rtllib_device *ieee = priv->rtllib;
1383 enum reset_type ResetType = RESET_TYPE_NORESET;
1384 static u8 check_reset_cnt;
1385 unsigned long flags;
1386 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1387 (&priv->rtllib->PowerSaveControl);
1388 bool bBusyTraffic = false;
1389 bool bHigherBusyTraffic = false;
1390 bool bHigherBusyRxTraffic = false;
1391 bool bEnterPS = false;
1392
1393 if (!priv->up || priv->bHwRadioOff)
1394 return;
1395
1396 if (priv->rtllib->state >= RTLLIB_LINKED) {
1397 if (priv->rtllib->CntAfterLink < 2)
1398 priv->rtllib->CntAfterLink++;
1399 } else {
1400 priv->rtllib->CntAfterLink = 0;
1401 }
1402
1403 rtl92e_dm_watchdog(dev);
1404
1405 if (rtllib_act_scanning(priv->rtllib, false) == false) {
1406 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1407 RTLLIB_NOLINK) &&
1408 (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1409 (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1410 if ((ieee->PowerSaveControl.ReturnPoint ==
1411 IPS_CALLBACK_NONE) &&
1412 (!ieee->bNetPromiscuousMode)) {
1413 RT_TRACE(COMP_PS,
1414 "====================>haha: rtl92e_ips_enter()\n");
1415 rtl92e_ips_enter(dev);
1416 }
1417 }
1418 }
1419 if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1420 IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1421 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1422 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1423 bBusyTraffic = true;
1424
1425
1426 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1427 ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1428 bHigherBusyTraffic = true;
1429 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1430 bHigherBusyRxTraffic = true;
1431 else
1432 bHigherBusyRxTraffic = false;
1433 }
1434
1435 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1436 ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1437 (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1438 bEnterPS = false;
1439 else
1440 bEnterPS = true;
1441
1442 if (ieee->current_network.beacon_interval < 95)
1443 bEnterPS = false;
1444
1445 if (bEnterPS)
1446 rtl92e_leisure_ps_enter(dev);
1447 else
1448 rtl92e_leisure_ps_leave(dev);
1449
1450 } else {
1451 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1452 rtl92e_leisure_ps_leave(dev);
1453 }
1454
1455 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1456 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1457 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1458 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1459
1460 ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1461 ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1462
1463 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1464 u32 TotalRxBcnNum = 0;
1465 u32 TotalRxDataNum = 0;
1466
1467 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1468
1469 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1470 priv->check_roaming_cnt++;
1471 else
1472 priv->check_roaming_cnt = 0;
1473
1474
1475 if (priv->check_roaming_cnt > 0) {
1476 if (ieee->eRFPowerState == eRfOff)
1477 netdev_info(dev, "%s(): RF is off\n", __func__);
1478
1479 netdev_info(dev,
1480 "===>%s(): AP is power off, chan:%d, connect another one\n",
1481 __func__, priv->chan);
1482
1483 ieee->state = RTLLIB_ASSOCIATING;
1484
1485 RemovePeerTS(priv->rtllib,
1486 priv->rtllib->current_network.bssid);
1487 ieee->is_roaming = true;
1488 ieee->is_set_key = false;
1489 ieee->link_change(dev);
1490 if (ieee->LedControlHandler)
1491 ieee->LedControlHandler(ieee->dev,
1492 LED_CTL_START_TO_LINK);
1493
1494 notify_wx_assoc_event(ieee);
1495
1496 if (!(ieee->rtllib_ap_sec_type(ieee) &
1497 (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1498 schedule_delayed_work(
1499 &ieee->associate_procedure_wq, 0);
1500
1501 priv->check_roaming_cnt = 0;
1502 }
1503 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1504 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1505
1506 }
1507
1508 spin_lock_irqsave(&priv->tx_lock, flags);
1509 if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1510 (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1511 ResetType = _rtl92e_if_check_reset(dev);
1512 check_reset_cnt = 3;
1513 }
1514 spin_unlock_irqrestore(&priv->tx_lock, flags);
1515
1516 if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1517 priv->ResetProgress = RESET_TYPE_NORMAL;
1518 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1519 return;
1520 }
1521
1522 if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1523 ResetType == RESET_TYPE_SILENT)))
1524 _rtl92e_if_silent_reset(dev);
1525 priv->force_reset = false;
1526 priv->bForcedSilentReset = false;
1527 priv->bResetInProgress = false;
1528 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1529 }
1530
_rtl92e_watchdog_timer_cb(struct timer_list * t)1531 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1532 {
1533 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1534
1535 schedule_delayed_work(&priv->watch_dog_wq, 0);
1536 mod_timer(&priv->watch_dog_timer, jiffies +
1537 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1538 }
1539
1540 /****************************************************************************
1541 * ---------------------------- NIC TX/RX STUFF---------------------------
1542 ****************************************************************************/
rtl92e_rx_enable(struct net_device * dev)1543 void rtl92e_rx_enable(struct net_device *dev)
1544 {
1545 struct r8192_priv *priv = rtllib_priv(dev);
1546
1547 priv->ops->rx_enable(dev);
1548 }
1549
rtl92e_tx_enable(struct net_device * dev)1550 void rtl92e_tx_enable(struct net_device *dev)
1551 {
1552 struct r8192_priv *priv = rtllib_priv(dev);
1553
1554 priv->ops->tx_enable(dev);
1555
1556 rtllib_reset_queue(priv->rtllib);
1557 }
1558
1559
_rtl92e_free_rx_ring(struct net_device * dev)1560 static void _rtl92e_free_rx_ring(struct net_device *dev)
1561 {
1562 struct r8192_priv *priv = rtllib_priv(dev);
1563 int i, rx_queue_idx;
1564
1565 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1566 rx_queue_idx++) {
1567 for (i = 0; i < priv->rxringcount; i++) {
1568 struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1569
1570 if (!skb)
1571 continue;
1572
1573 pci_unmap_single(priv->pdev,
1574 *((dma_addr_t *)skb->cb),
1575 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1576 kfree_skb(skb);
1577 }
1578
1579 pci_free_consistent(priv->pdev,
1580 sizeof(*priv->rx_ring[rx_queue_idx]) *
1581 priv->rxringcount,
1582 priv->rx_ring[rx_queue_idx],
1583 priv->rx_ring_dma[rx_queue_idx]);
1584 priv->rx_ring[rx_queue_idx] = NULL;
1585 }
1586 }
1587
_rtl92e_free_tx_ring(struct net_device * dev,unsigned int prio)1588 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1589 {
1590 struct r8192_priv *priv = rtllib_priv(dev);
1591 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1592
1593 while (skb_queue_len(&ring->queue)) {
1594 struct tx_desc *entry = &ring->desc[ring->idx];
1595 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1596
1597 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1598 skb->len, PCI_DMA_TODEVICE);
1599 kfree_skb(skb);
1600 ring->idx = (ring->idx + 1) % ring->entries;
1601 }
1602
1603 pci_free_consistent(priv->pdev, sizeof(*ring->desc) * ring->entries,
1604 ring->desc, ring->dma);
1605 ring->desc = NULL;
1606 }
1607
_rtl92e_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1608 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1609 int rate)
1610 {
1611 struct r8192_priv *priv = rtllib_priv(dev);
1612 int ret;
1613 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1614 MAX_DEV_ADDR_SIZE);
1615 u8 queue_index = tcb_desc->queue_index;
1616
1617 if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1618 priv->bResetInProgress) {
1619 kfree_skb(skb);
1620 return;
1621 }
1622
1623 if (queue_index == TXCMD_QUEUE)
1624 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1625 __func__);
1626
1627 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1628 skb_push(skb, priv->rtllib->tx_headroom);
1629 ret = _rtl92e_tx(dev, skb);
1630 if (ret != 0)
1631 kfree_skb(skb);
1632
1633 if (queue_index != MGNT_QUEUE) {
1634 priv->rtllib->stats.tx_bytes += (skb->len -
1635 priv->rtllib->tx_headroom);
1636 priv->rtllib->stats.tx_packets++;
1637 }
1638 }
1639
_rtl92e_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1640 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1641 {
1642 struct r8192_priv *priv = rtllib_priv(dev);
1643 int ret;
1644 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1645 MAX_DEV_ADDR_SIZE);
1646 u8 queue_index = tcb_desc->queue_index;
1647
1648 if (queue_index != TXCMD_QUEUE) {
1649 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1650 !priv->up || priv->bResetInProgress) {
1651 kfree_skb(skb);
1652 return 0;
1653 }
1654 }
1655
1656 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1657 if (queue_index == TXCMD_QUEUE) {
1658 _rtl92e_tx_cmd(dev, skb);
1659 return 0;
1660 }
1661
1662 tcb_desc->RATRIndex = 7;
1663 tcb_desc->bTxDisableRateFallBack = 1;
1664 tcb_desc->bTxUseDriverAssingedRate = 1;
1665 tcb_desc->bTxEnableFwCalcDur = 1;
1666 skb_push(skb, priv->rtllib->tx_headroom);
1667 ret = _rtl92e_tx(dev, skb);
1668 if (ret != 0)
1669 kfree_skb(skb);
1670 return ret;
1671 }
1672
_rtl92e_tx_isr(struct net_device * dev,int prio)1673 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1674 {
1675 struct r8192_priv *priv = rtllib_priv(dev);
1676
1677 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1678
1679 while (skb_queue_len(&ring->queue)) {
1680 struct tx_desc *entry = &ring->desc[ring->idx];
1681 struct sk_buff *skb;
1682
1683 if (prio != BEACON_QUEUE) {
1684 if (entry->OWN)
1685 return;
1686 ring->idx = (ring->idx + 1) % ring->entries;
1687 }
1688
1689 skb = __skb_dequeue(&ring->queue);
1690 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1691 skb->len, PCI_DMA_TODEVICE);
1692
1693 kfree_skb(skb);
1694 }
1695 if (prio != BEACON_QUEUE)
1696 tasklet_schedule(&priv->irq_tx_tasklet);
1697 }
1698
_rtl92e_tx_cmd(struct net_device * dev,struct sk_buff * skb)1699 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1700 {
1701 struct r8192_priv *priv = rtllib_priv(dev);
1702 struct rtl8192_tx_ring *ring;
1703 struct tx_desc_cmd *entry;
1704 unsigned int idx;
1705 struct cb_desc *tcb_desc;
1706 unsigned long flags;
1707
1708 spin_lock_irqsave(&priv->irq_th_lock, flags);
1709 ring = &priv->tx_ring[TXCMD_QUEUE];
1710
1711 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1712 entry = (struct tx_desc_cmd *)&ring->desc[idx];
1713
1714 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1715
1716 priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1717
1718 __skb_queue_tail(&ring->queue, skb);
1719 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1720 }
1721
_rtl92e_tx(struct net_device * dev,struct sk_buff * skb)1722 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1723 {
1724 struct r8192_priv *priv = rtllib_priv(dev);
1725 struct rtl8192_tx_ring *ring;
1726 unsigned long flags;
1727 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1728 MAX_DEV_ADDR_SIZE);
1729 struct tx_desc *pdesc = NULL;
1730 struct rtllib_hdr_1addr *header = NULL;
1731 u16 fc = 0, type = 0, stype = 0;
1732 bool multi_addr = false, broad_addr = false, uni_addr = false;
1733 u8 *pda_addr = NULL;
1734 int idx;
1735 u32 fwinfo_size = 0;
1736
1737 if (priv->bdisable_nic) {
1738 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1739 __func__);
1740 return skb->len;
1741 }
1742
1743 priv->rtllib->bAwakePktSent = true;
1744
1745 fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1746
1747 header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1748 fc = le16_to_cpu(header->frame_ctl);
1749 type = WLAN_FC_GET_TYPE(fc);
1750 stype = WLAN_FC_GET_STYPE(fc);
1751 pda_addr = header->addr1;
1752
1753 if (is_broadcast_ether_addr(pda_addr))
1754 broad_addr = true;
1755 else if (is_multicast_ether_addr(pda_addr))
1756 multi_addr = true;
1757 else
1758 uni_addr = true;
1759
1760 if (uni_addr)
1761 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1762 else if (multi_addr)
1763 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1764 else
1765 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1766
1767 spin_lock_irqsave(&priv->irq_th_lock, flags);
1768 ring = &priv->tx_ring[tcb_desc->queue_index];
1769 if (tcb_desc->queue_index != BEACON_QUEUE)
1770 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1771 else
1772 idx = 0;
1773
1774 pdesc = &ring->desc[idx];
1775 if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1776 netdev_warn(dev,
1777 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1778 tcb_desc->queue_index, ring->idx, idx, skb->len,
1779 skb_queue_len(&ring->queue));
1780 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1781 return skb->len;
1782 }
1783
1784 if (type == RTLLIB_FTYPE_DATA) {
1785 if (priv->rtllib->LedControlHandler)
1786 priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1787 }
1788 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1789 __skb_queue_tail(&ring->queue, skb);
1790 pdesc->OWN = 1;
1791 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1792 netif_trans_update(dev);
1793
1794 rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1795 return 0;
1796 }
1797
_rtl92e_alloc_rx_ring(struct net_device * dev)1798 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1799 {
1800 struct r8192_priv *priv = rtllib_priv(dev);
1801 struct rx_desc *entry = NULL;
1802 int i, rx_queue_idx;
1803
1804 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1805 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1806 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1807 &priv->rx_ring_dma[rx_queue_idx]);
1808 if (!priv->rx_ring[rx_queue_idx] ||
1809 (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1810 netdev_warn(dev, "Cannot allocate RX ring\n");
1811 return -ENOMEM;
1812 }
1813
1814 priv->rx_idx[rx_queue_idx] = 0;
1815
1816 for (i = 0; i < priv->rxringcount; i++) {
1817 struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1818 dma_addr_t *mapping;
1819
1820 entry = &priv->rx_ring[rx_queue_idx][i];
1821 if (!skb)
1822 return 0;
1823 skb->dev = dev;
1824 priv->rx_buf[rx_queue_idx][i] = skb;
1825 mapping = (dma_addr_t *)skb->cb;
1826 *mapping = pci_map_single(priv->pdev,
1827 skb_tail_pointer_rsl(skb),
1828 priv->rxbuffersize,
1829 PCI_DMA_FROMDEVICE);
1830 if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1831 dev_kfree_skb_any(skb);
1832 return -1;
1833 }
1834 entry->BufferAddress = *mapping;
1835
1836 entry->Length = priv->rxbuffersize;
1837 entry->OWN = 1;
1838 }
1839
1840 if (entry)
1841 entry->EOR = 1;
1842 }
1843 return 0;
1844 }
1845
_rtl92e_alloc_tx_ring(struct net_device * dev,unsigned int prio,unsigned int entries)1846 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1847 unsigned int entries)
1848 {
1849 struct r8192_priv *priv = rtllib_priv(dev);
1850 struct tx_desc *ring;
1851 dma_addr_t dma;
1852 int i;
1853
1854 ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1855 if (!ring || (unsigned long)ring & 0xFF) {
1856 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1857 return -ENOMEM;
1858 }
1859
1860 priv->tx_ring[prio].desc = ring;
1861 priv->tx_ring[prio].dma = dma;
1862 priv->tx_ring[prio].idx = 0;
1863 priv->tx_ring[prio].entries = entries;
1864 skb_queue_head_init(&priv->tx_ring[prio].queue);
1865
1866 for (i = 0; i < entries; i++)
1867 ring[i].NextDescAddress =
1868 (u32)dma + ((i + 1) % entries) *
1869 sizeof(*ring);
1870
1871 return 0;
1872 }
1873
_rtl92e_pci_initdescring(struct net_device * dev)1874 static short _rtl92e_pci_initdescring(struct net_device *dev)
1875 {
1876 u32 ret;
1877 int i;
1878 struct r8192_priv *priv = rtllib_priv(dev);
1879
1880 ret = _rtl92e_alloc_rx_ring(dev);
1881 if (ret)
1882 return ret;
1883
1884 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1885 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1886 if (ret)
1887 goto err_free_rings;
1888 }
1889
1890 return 0;
1891
1892 err_free_rings:
1893 _rtl92e_free_rx_ring(dev);
1894 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1895 if (priv->tx_ring[i].desc)
1896 _rtl92e_free_tx_ring(dev, i);
1897 return 1;
1898 }
1899
rtl92e_reset_desc_ring(struct net_device * dev)1900 void rtl92e_reset_desc_ring(struct net_device *dev)
1901 {
1902 struct r8192_priv *priv = rtllib_priv(dev);
1903 int i, rx_queue_idx;
1904 unsigned long flags = 0;
1905
1906 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1907 if (priv->rx_ring[rx_queue_idx]) {
1908 struct rx_desc *entry = NULL;
1909
1910 for (i = 0; i < priv->rxringcount; i++) {
1911 entry = &priv->rx_ring[rx_queue_idx][i];
1912 entry->OWN = 1;
1913 }
1914 priv->rx_idx[rx_queue_idx] = 0;
1915 }
1916 }
1917
1918 spin_lock_irqsave(&priv->irq_th_lock, flags);
1919 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1920 if (priv->tx_ring[i].desc) {
1921 struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1922
1923 while (skb_queue_len(&ring->queue)) {
1924 struct tx_desc *entry = &ring->desc[ring->idx];
1925 struct sk_buff *skb =
1926 __skb_dequeue(&ring->queue);
1927
1928 pci_unmap_single(priv->pdev,
1929 entry->TxBuffAddr,
1930 skb->len, PCI_DMA_TODEVICE);
1931 kfree_skb(skb);
1932 ring->idx = (ring->idx + 1) % ring->entries;
1933 }
1934 ring->idx = 0;
1935 }
1936 }
1937 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1938 }
1939
rtl92e_update_rx_pkt_timestamp(struct net_device * dev,struct rtllib_rx_stats * stats)1940 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1941 struct rtllib_rx_stats *stats)
1942 {
1943 struct r8192_priv *priv = rtllib_priv(dev);
1944
1945 if (stats->bIsAMPDU && !stats->bFirstMPDU)
1946 stats->mac_time = priv->LastRxDescTSF;
1947 else
1948 priv->LastRxDescTSF = stats->mac_time;
1949 }
1950
rtl92e_translate_to_dbm(struct r8192_priv * priv,u8 signal_strength_index)1951 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1952 {
1953 long signal_power;
1954
1955 signal_power = (long)((signal_strength_index + 1) >> 1);
1956 signal_power -= 95;
1957
1958 return signal_power;
1959 }
1960
1961
rtl92e_update_rx_statistics(struct r8192_priv * priv,struct rtllib_rx_stats * pprevious_stats)1962 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1963 struct rtllib_rx_stats *pprevious_stats)
1964 {
1965 int weighting = 0;
1966
1967
1968 if (priv->stats.recv_signal_power == 0)
1969 priv->stats.recv_signal_power =
1970 pprevious_stats->RecvSignalPower;
1971
1972 if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1973 weighting = 5;
1974 else if (pprevious_stats->RecvSignalPower <
1975 priv->stats.recv_signal_power)
1976 weighting = (-5);
1977 priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1978 pprevious_stats->RecvSignalPower +
1979 weighting) / 6;
1980 }
1981
rtl92e_rx_db_to_percent(s8 antpower)1982 u8 rtl92e_rx_db_to_percent(s8 antpower)
1983 {
1984 if ((antpower <= -100) || (antpower >= 20))
1985 return 0;
1986 else if (antpower >= 0)
1987 return 100;
1988 else
1989 return 100 + antpower;
1990
1991 } /* QueryRxPwrPercentage */
1992
rtl92e_evm_db_to_percent(s8 value)1993 u8 rtl92e_evm_db_to_percent(s8 value)
1994 {
1995 s8 ret_val;
1996
1997 ret_val = value;
1998
1999 if (ret_val >= 0)
2000 ret_val = 0;
2001 if (ret_val <= -33)
2002 ret_val = -33;
2003 ret_val = 0 - ret_val;
2004 ret_val *= 3;
2005 if (ret_val == 99)
2006 ret_val = 100;
2007 return ret_val;
2008 }
2009
rtl92e_copy_mpdu_stats(struct rtllib_rx_stats * psrc_stats,struct rtllib_rx_stats * ptarget_stats)2010 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2011 struct rtllib_rx_stats *ptarget_stats)
2012 {
2013 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2014 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2015 }
2016
2017
2018
_rtl92e_rx_normal(struct net_device * dev)2019 static void _rtl92e_rx_normal(struct net_device *dev)
2020 {
2021 struct r8192_priv *priv = rtllib_priv(dev);
2022 struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2023 bool unicast_packet = false;
2024 bool bLedBlinking = true;
2025 u16 fc = 0, type = 0;
2026 u32 skb_len = 0;
2027 int rx_queue_idx = RX_MPDU_QUEUE;
2028
2029 struct rtllib_rx_stats stats = {
2030 .signal = 0,
2031 .noise = (u8)-98,
2032 .rate = 0,
2033 .freq = RTLLIB_24GHZ_BAND,
2034 };
2035 unsigned int count = priv->rxringcount;
2036
2037 stats.nic_type = NIC_8192E;
2038
2039 while (count--) {
2040 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2041 [priv->rx_idx[rx_queue_idx]];
2042 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2043 [priv->rx_idx[rx_queue_idx]];
2044 struct sk_buff *new_skb;
2045
2046 if (pdesc->OWN)
2047 return;
2048 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2049 pdesc, skb))
2050 goto done;
2051 new_skb = dev_alloc_skb(priv->rxbuffersize);
2052 /* if allocation of new skb failed - drop current packet
2053 * and reuse skb
2054 */
2055 if (unlikely(!new_skb))
2056 goto done;
2057
2058 pci_unmap_single(priv->pdev,
2059 *((dma_addr_t *)skb->cb),
2060 priv->rxbuffersize,
2061 PCI_DMA_FROMDEVICE);
2062
2063 skb_put(skb, pdesc->Length);
2064 skb_reserve(skb, stats.RxDrvInfoSize +
2065 stats.RxBufShift);
2066 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2067 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2068 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2069 /* unicast packet */
2070 unicast_packet = true;
2071 }
2072 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2073 type = WLAN_FC_GET_TYPE(fc);
2074 if (type == RTLLIB_FTYPE_MGMT)
2075 bLedBlinking = false;
2076
2077 if (bLedBlinking)
2078 if (priv->rtllib->LedControlHandler)
2079 priv->rtllib->LedControlHandler(dev,
2080 LED_CTL_RX);
2081
2082 if (stats.bCRC) {
2083 if (type != RTLLIB_FTYPE_MGMT)
2084 priv->stats.rxdatacrcerr++;
2085 else
2086 priv->stats.rxmgmtcrcerr++;
2087 }
2088
2089 skb_len = skb->len;
2090
2091 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2092 dev_kfree_skb_any(skb);
2093 } else {
2094 priv->stats.rxok++;
2095 if (unicast_packet)
2096 priv->stats.rxbytesunicast += skb_len;
2097 }
2098
2099 skb = new_skb;
2100 skb->dev = dev;
2101
2102 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2103 skb;
2104 *((dma_addr_t *)skb->cb) = pci_map_single(priv->pdev,
2105 skb_tail_pointer_rsl(skb),
2106 priv->rxbuffersize,
2107 PCI_DMA_FROMDEVICE);
2108 if (pci_dma_mapping_error(priv->pdev,
2109 *((dma_addr_t *)skb->cb))) {
2110 dev_kfree_skb_any(skb);
2111 return;
2112 }
2113 done:
2114 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2115 pdesc->OWN = 1;
2116 pdesc->Length = priv->rxbuffersize;
2117 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
2118 pdesc->EOR = 1;
2119 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2120 priv->rxringcount;
2121 }
2122
2123 }
2124
_rtl92e_tx_resume(struct net_device * dev)2125 static void _rtl92e_tx_resume(struct net_device *dev)
2126 {
2127 struct r8192_priv *priv = rtllib_priv(dev);
2128 struct rtllib_device *ieee = priv->rtllib;
2129 struct sk_buff *skb;
2130 int queue_index;
2131
2132 for (queue_index = BK_QUEUE;
2133 queue_index < MAX_QUEUE_SIZE; queue_index++) {
2134 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2135 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2136 skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2137 ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2138 }
2139 }
2140 }
2141
_rtl92e_irq_tx_tasklet(struct r8192_priv * priv)2142 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2143 {
2144 _rtl92e_tx_resume(priv->rtllib->dev);
2145 }
2146
_rtl92e_irq_rx_tasklet(struct r8192_priv * priv)2147 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2148 {
2149 _rtl92e_rx_normal(priv->rtllib->dev);
2150
2151 rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2152 rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2153 }
2154
2155 /****************************************************************************
2156 * ---------------------------- NIC START/CLOSE STUFF---------------------------
2157 ****************************************************************************/
_rtl92e_cancel_deferred_work(struct r8192_priv * priv)2158 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2159 {
2160 cancel_delayed_work_sync(&priv->watch_dog_wq);
2161 cancel_delayed_work_sync(&priv->update_beacon_wq);
2162 cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2163 cancel_work_sync(&priv->reset_wq);
2164 cancel_work_sync(&priv->qos_activate);
2165 }
2166
_rtl92e_up(struct net_device * dev,bool is_silent_reset)2167 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2168 {
2169 if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2170 return -1;
2171 return 0;
2172 }
2173
_rtl92e_open(struct net_device * dev)2174 static int _rtl92e_open(struct net_device *dev)
2175 {
2176 struct r8192_priv *priv = rtllib_priv(dev);
2177 int ret;
2178
2179 mutex_lock(&priv->wx_mutex);
2180 ret = _rtl92e_try_up(dev);
2181 mutex_unlock(&priv->wx_mutex);
2182 return ret;
2183
2184 }
2185
_rtl92e_try_up(struct net_device * dev)2186 static int _rtl92e_try_up(struct net_device *dev)
2187 {
2188 struct r8192_priv *priv = rtllib_priv(dev);
2189
2190 if (priv->up == 1)
2191 return -1;
2192 return _rtl92e_up(dev, false);
2193 }
2194
2195
_rtl92e_close(struct net_device * dev)2196 static int _rtl92e_close(struct net_device *dev)
2197 {
2198 struct r8192_priv *priv = rtllib_priv(dev);
2199 int ret;
2200
2201 if ((rtllib_act_scanning(priv->rtllib, false)) &&
2202 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2203 rtllib_stop_scan(priv->rtllib);
2204 }
2205
2206 mutex_lock(&priv->wx_mutex);
2207
2208 ret = _rtl92e_down(dev, true);
2209
2210 mutex_unlock(&priv->wx_mutex);
2211
2212 return ret;
2213
2214 }
2215
_rtl92e_down(struct net_device * dev,bool shutdownrf)2216 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2217 {
2218 if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2219 return -1;
2220
2221 return 0;
2222 }
2223
rtl92e_commit(struct net_device * dev)2224 void rtl92e_commit(struct net_device *dev)
2225 {
2226 struct r8192_priv *priv = rtllib_priv(dev);
2227
2228 if (priv->up == 0)
2229 return;
2230 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2231 rtl92e_irq_disable(dev);
2232 priv->ops->stop_adapter(dev, true);
2233 _rtl92e_up(dev, false);
2234 }
2235
_rtl92e_restart(void * data)2236 static void _rtl92e_restart(void *data)
2237 {
2238 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2239 reset_wq);
2240 struct net_device *dev = priv->rtllib->dev;
2241
2242 mutex_lock(&priv->wx_mutex);
2243
2244 rtl92e_commit(dev);
2245
2246 mutex_unlock(&priv->wx_mutex);
2247 }
2248
_rtl92e_set_multicast(struct net_device * dev)2249 static void _rtl92e_set_multicast(struct net_device *dev)
2250 {
2251 struct r8192_priv *priv = rtllib_priv(dev);
2252 short promisc;
2253
2254 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2255 priv->promisc = promisc;
2256
2257 }
2258
2259
_rtl92e_set_mac_adr(struct net_device * dev,void * mac)2260 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2261 {
2262 struct r8192_priv *priv = rtllib_priv(dev);
2263 struct sockaddr *addr = mac;
2264
2265 mutex_lock(&priv->wx_mutex);
2266
2267 ether_addr_copy(dev->dev_addr, addr->sa_data);
2268
2269 schedule_work(&priv->reset_wq);
2270 mutex_unlock(&priv->wx_mutex);
2271
2272 return 0;
2273 }
2274
_rtl92e_irq(int irq,void * netdev)2275 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2276 {
2277 struct net_device *dev = netdev;
2278 struct r8192_priv *priv = rtllib_priv(dev);
2279 unsigned long flags;
2280 u32 inta;
2281 u32 intb;
2282
2283 intb = 0;
2284
2285 if (priv->irq_enabled == 0)
2286 goto done;
2287
2288 spin_lock_irqsave(&priv->irq_th_lock, flags);
2289
2290 priv->ops->interrupt_recognized(dev, &inta, &intb);
2291 priv->stats.shints++;
2292
2293 if (!inta) {
2294 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2295 goto done;
2296 }
2297
2298 if (inta == 0xffff) {
2299 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2300 goto done;
2301 }
2302
2303 priv->stats.ints++;
2304
2305 if (!netif_running(dev)) {
2306 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2307 goto done;
2308 }
2309
2310 if (inta & IMR_TBDOK) {
2311 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2312 priv->stats.txbeaconokint++;
2313 }
2314
2315 if (inta & IMR_TBDER) {
2316 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2317 priv->stats.txbeaconerr++;
2318 }
2319
2320 if (inta & IMR_BDOK)
2321 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2322
2323 if (inta & IMR_MGNTDOK) {
2324 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2325 priv->stats.txmanageokint++;
2326 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2327 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2328 if (priv->rtllib->ack_tx_to_ieee) {
2329 if (_rtl92e_is_tx_queue_empty(dev)) {
2330 priv->rtllib->ack_tx_to_ieee = 0;
2331 rtllib_ps_tx_ack(priv->rtllib, 1);
2332 }
2333 }
2334 spin_lock_irqsave(&priv->irq_th_lock, flags);
2335 }
2336
2337 if (inta & IMR_COMDOK) {
2338 priv->stats.txcmdpktokint++;
2339 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2340 }
2341
2342 if (inta & IMR_HIGHDOK)
2343 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2344
2345 if (inta & IMR_ROK) {
2346 priv->stats.rxint++;
2347 priv->InterruptLog.nIMR_ROK++;
2348 tasklet_schedule(&priv->irq_rx_tasklet);
2349 }
2350
2351 if (inta & IMR_BcnInt) {
2352 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2353 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2354 }
2355
2356 if (inta & IMR_RDU) {
2357 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2358 priv->stats.rxrdu++;
2359 rtl92e_writel(dev, INTA_MASK,
2360 rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2361 tasklet_schedule(&priv->irq_rx_tasklet);
2362 }
2363
2364 if (inta & IMR_RXFOVW) {
2365 RT_TRACE(COMP_INTR, "rx overflow !\n");
2366 priv->stats.rxoverflow++;
2367 tasklet_schedule(&priv->irq_rx_tasklet);
2368 }
2369
2370 if (inta & IMR_TXFOVW)
2371 priv->stats.txoverflow++;
2372
2373 if (inta & IMR_BKDOK) {
2374 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2375 priv->stats.txbkokint++;
2376 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2377 _rtl92e_tx_isr(dev, BK_QUEUE);
2378 }
2379
2380 if (inta & IMR_BEDOK) {
2381 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2382 priv->stats.txbeokint++;
2383 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2384 _rtl92e_tx_isr(dev, BE_QUEUE);
2385 }
2386
2387 if (inta & IMR_VIDOK) {
2388 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2389 priv->stats.txviokint++;
2390 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2391 _rtl92e_tx_isr(dev, VI_QUEUE);
2392 }
2393
2394 if (inta & IMR_VODOK) {
2395 priv->stats.txvookint++;
2396 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2397 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2398 _rtl92e_tx_isr(dev, VO_QUEUE);
2399 }
2400
2401 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2402
2403 done:
2404
2405 return IRQ_HANDLED;
2406 }
2407
2408
2409
2410 /****************************************************************************
2411 * ---------------------------- PCI_STUFF---------------------------
2412 ****************************************************************************/
2413 static const struct net_device_ops rtl8192_netdev_ops = {
2414 .ndo_open = _rtl92e_open,
2415 .ndo_stop = _rtl92e_close,
2416 .ndo_tx_timeout = _rtl92e_tx_timeout,
2417 .ndo_set_rx_mode = _rtl92e_set_multicast,
2418 .ndo_set_mac_address = _rtl92e_set_mac_adr,
2419 .ndo_validate_addr = eth_validate_addr,
2420 .ndo_start_xmit = rtllib_xmit,
2421 };
2422
_rtl92e_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)2423 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2424 const struct pci_device_id *id)
2425 {
2426 unsigned long ioaddr = 0;
2427 struct net_device *dev = NULL;
2428 struct r8192_priv *priv = NULL;
2429 struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2430 unsigned long pmem_start, pmem_len, pmem_flags;
2431 int err = -ENOMEM;
2432 u8 revision_id;
2433
2434 RT_TRACE(COMP_INIT, "Configuring chip resources");
2435
2436 if (pci_enable_device(pdev)) {
2437 dev_err(&pdev->dev, "Failed to enable PCI device");
2438 return -EIO;
2439 }
2440
2441 pci_set_master(pdev);
2442
2443 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2444 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2445 dev_info(&pdev->dev,
2446 "Unable to obtain 32bit DMA for consistent allocations\n");
2447 goto err_pci_disable;
2448 }
2449 }
2450 dev = alloc_rtllib(sizeof(struct r8192_priv));
2451 if (!dev)
2452 goto err_pci_disable;
2453
2454 err = -ENODEV;
2455
2456 pci_set_drvdata(pdev, dev);
2457 SET_NETDEV_DEV(dev, &pdev->dev);
2458 priv = rtllib_priv(dev);
2459 priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2460 priv->pdev = pdev;
2461 priv->rtllib->pdev = pdev;
2462 if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2463 (pdev->subsystem_device == 0x3304))
2464 priv->rtllib->bSupportRemoteWakeUp = 1;
2465 else
2466 priv->rtllib->bSupportRemoteWakeUp = 0;
2467
2468 pmem_start = pci_resource_start(pdev, 1);
2469 pmem_len = pci_resource_len(pdev, 1);
2470 pmem_flags = pci_resource_flags(pdev, 1);
2471
2472 if (!(pmem_flags & IORESOURCE_MEM)) {
2473 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2474 goto err_rel_rtllib;
2475 }
2476
2477 dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2478 pmem_start);
2479 if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2480 netdev_err(dev, "request_mem_region failed!");
2481 goto err_rel_rtllib;
2482 }
2483
2484
2485 ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2486 if (ioaddr == (unsigned long)NULL) {
2487 netdev_err(dev, "ioremap failed!");
2488 goto err_rel_mem;
2489 }
2490
2491 dev->mem_start = ioaddr;
2492 dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2493
2494 pci_read_config_byte(pdev, 0x08, &revision_id);
2495 /* If the revisionid is 0x10, the device uses rtl8192se. */
2496 if (pdev->device == 0x8192 && revision_id == 0x10)
2497 goto err_unmap;
2498
2499 priv->ops = ops;
2500
2501 if (rtl92e_check_adapter(pdev, dev) == false)
2502 goto err_unmap;
2503
2504 dev->irq = pdev->irq;
2505 priv->irq = 0;
2506
2507 dev->netdev_ops = &rtl8192_netdev_ops;
2508
2509 dev->wireless_handlers = &r8192_wx_handlers_def;
2510 dev->ethtool_ops = &rtl819x_ethtool_ops;
2511
2512 dev->type = ARPHRD_ETHER;
2513 dev->watchdog_timeo = HZ * 3;
2514
2515 if (dev_alloc_name(dev, ifname) < 0) {
2516 RT_TRACE(COMP_INIT,
2517 "Oops: devname already taken! Trying wlan%%d...\n");
2518 dev_alloc_name(dev, ifname);
2519 }
2520
2521 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2522 if (_rtl92e_init(dev) != 0) {
2523 netdev_warn(dev, "Initialization failed");
2524 goto err_free_irq;
2525 }
2526
2527 netif_carrier_off(dev);
2528 netif_stop_queue(dev);
2529
2530 if (register_netdev(dev))
2531 goto err_free_irq;
2532 RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2533
2534 if (priv->polling_timer_on == 0)
2535 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2536
2537 RT_TRACE(COMP_INIT, "Driver probe completed\n");
2538 return 0;
2539
2540 err_free_irq:
2541 free_irq(dev->irq, dev);
2542 priv->irq = 0;
2543 err_unmap:
2544 iounmap((void __iomem *)ioaddr);
2545 err_rel_mem:
2546 release_mem_region(pmem_start, pmem_len);
2547 err_rel_rtllib:
2548 free_rtllib(dev);
2549 err_pci_disable:
2550 pci_disable_device(pdev);
2551 return err;
2552 }
2553
_rtl92e_pci_disconnect(struct pci_dev * pdev)2554 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2555 {
2556 struct net_device *dev = pci_get_drvdata(pdev);
2557 struct r8192_priv *priv;
2558 u32 i;
2559
2560 if (dev) {
2561 unregister_netdev(dev);
2562
2563 priv = rtllib_priv(dev);
2564
2565 del_timer_sync(&priv->gpio_polling_timer);
2566 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2567 priv->polling_timer_on = 0;
2568 _rtl92e_down(dev, true);
2569 rtl92e_dm_deinit(dev);
2570 vfree(priv->pFirmware);
2571 priv->pFirmware = NULL;
2572 _rtl92e_free_rx_ring(dev);
2573 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2574 _rtl92e_free_tx_ring(dev, i);
2575
2576 if (priv->irq) {
2577 dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2578 free_irq(dev->irq, dev);
2579 priv->irq = 0;
2580 }
2581 free_rtllib(dev);
2582
2583 if (dev->mem_start != 0) {
2584 iounmap((void __iomem *)dev->mem_start);
2585 release_mem_region(pci_resource_start(pdev, 1),
2586 pci_resource_len(pdev, 1));
2587 }
2588 } else {
2589 priv = rtllib_priv(dev);
2590 }
2591
2592 pci_disable_device(pdev);
2593 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2594 }
2595
rtl92e_enable_nic(struct net_device * dev)2596 bool rtl92e_enable_nic(struct net_device *dev)
2597 {
2598 bool init_status = true;
2599 struct r8192_priv *priv = rtllib_priv(dev);
2600 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2601 (&priv->rtllib->PowerSaveControl);
2602
2603 if (!priv->up) {
2604 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2605 priv->bdisable_nic = false;
2606 return false;
2607 }
2608
2609 RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2610 priv->bfirst_init = true;
2611 init_status = priv->ops->initialize_adapter(dev);
2612 if (!init_status) {
2613 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2614 priv->bdisable_nic = false;
2615 return false;
2616 }
2617 RT_TRACE(COMP_INIT, "start adapter finished\n");
2618 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2619 priv->bfirst_init = false;
2620
2621 rtl92e_irq_enable(dev);
2622 priv->bdisable_nic = false;
2623 RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2624 return init_status;
2625 }
2626
rtl92e_disable_nic(struct net_device * dev)2627 bool rtl92e_disable_nic(struct net_device *dev)
2628 {
2629 struct r8192_priv *priv = rtllib_priv(dev);
2630 u8 tmp_state = 0;
2631
2632 RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2633 priv->bdisable_nic = true;
2634 tmp_state = priv->rtllib->state;
2635 rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2636 priv->rtllib->state = tmp_state;
2637 _rtl92e_cancel_deferred_work(priv);
2638 rtl92e_irq_disable(dev);
2639
2640 priv->ops->stop_adapter(dev, false);
2641 RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2642
2643 return true;
2644 }
2645
2646 module_pci_driver(rtl8192_pci_driver);
2647
rtl92e_check_rfctrl_gpio_timer(struct timer_list * t)2648 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2649 {
2650 struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2651
2652 priv->polling_timer_on = 1;
2653
2654 schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2655
2656 mod_timer(&priv->gpio_polling_timer, jiffies +
2657 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2658 }
2659
2660 /***************************************************************************
2661 * ------------------- module init / exit stubs ----------------
2662 ***************************************************************************/
2663 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2664 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2665 MODULE_VERSION(DRV_VERSION);
2666 MODULE_LICENSE("GPL");
2667 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2668 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2669 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2670
2671 module_param(ifname, charp, 0644);
2672 module_param(hwwep, int, 0644);
2673 module_param(channels, int, 0644);
2674
2675 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2676 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2677 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2678
