1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 *
5 * Based on the r8180 driver, which is:
6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
7 *
8 * Contact Information: wlanfae <wlanfae@realtek.com>
9 */
10 #include <linux/uaccess.h>
11 #include <linux/pci.h>
12 #include <linux/vmalloc.h>
13 #include <linux/ieee80211.h>
14 #include "rtl_core.h"
15 #include "r8192E_phy.h"
16 #include "r8192E_phyreg.h"
17 #include "r8190P_rtl8256.h"
18 #include "r8192E_cmdpkt.h"
19
20 #include "rtl_wx.h"
21 #include "rtl_dm.h"
22
23 #include "rtl_pm.h"
24
25 int hwwep = 1;
26 static int channels = 0x3fff;
27 static char *ifname = "wlan%d";
28
29
30 static const struct rtl819x_ops rtl819xp_ops = {
31 .nic_type = NIC_8192E,
32 .get_eeprom_size = rtl92e_get_eeprom_size,
33 .init_adapter_variable = rtl92e_init_variables,
34 .initialize_adapter = rtl92e_start_adapter,
35 .link_change = rtl92e_link_change,
36 .tx_fill_descriptor = rtl92e_fill_tx_desc,
37 .tx_fill_cmd_descriptor = rtl92e_fill_tx_cmd_desc,
38 .rx_query_status_descriptor = rtl92e_get_rx_stats,
39 .rx_command_packet_handler = NULL,
40 .stop_adapter = rtl92e_stop_adapter,
41 .update_ratr_table = rtl92e_update_ratr_table,
42 .irq_enable = rtl92e_enable_irq,
43 .irq_disable = rtl92e_disable_irq,
44 .irq_clear = rtl92e_clear_irq,
45 .rx_enable = rtl92e_enable_rx,
46 .tx_enable = rtl92e_enable_tx,
47 .interrupt_recognized = rtl92e_ack_irq,
48 .TxCheckStuckHandler = rtl92e_is_tx_stuck,
49 .RxCheckStuckHandler = rtl92e_is_rx_stuck,
50 };
51
52 static struct pci_device_id rtl8192_pci_id_tbl[] = {
53 {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
54 {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
55 {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
56 {}
57 };
58
59 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
60
61 static int _rtl92e_pci_probe(struct pci_dev *pdev,
62 const struct pci_device_id *id);
63 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
64 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
65
66 static SIMPLE_DEV_PM_OPS(rtl92e_pm_ops, rtl92e_suspend, rtl92e_resume);
67
68 static struct pci_driver rtl8192_pci_driver = {
69 .name = DRV_NAME, /* Driver name */
70 .id_table = rtl8192_pci_id_tbl, /* PCI_ID table */
71 .probe = _rtl92e_pci_probe, /* probe fn */
72 .remove = _rtl92e_pci_disconnect, /* remove fn */
73 .driver.pm = &rtl92e_pm_ops,
74 };
75
76 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
77 static void _rtl92e_watchdog_wq_cb(void *data);
78 static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
79 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
80 int rate);
81 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
82 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
83 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
84 static short _rtl92e_pci_initdescring(struct net_device *dev);
85 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t);
86 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t);
87 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
88 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
89 static int _rtl92e_try_up(struct net_device *dev);
90 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
91 static void _rtl92e_restart(void *data);
92
93 /****************************************************************************
94 * -----------------------------IO STUFF-------------------------
95 ****************************************************************************/
96
rtl92e_readb(struct net_device * dev,int x)97 u8 rtl92e_readb(struct net_device *dev, int x)
98 {
99 return 0xff & readb((u8 __iomem *)dev->mem_start + x);
100 }
101
rtl92e_readl(struct net_device * dev,int x)102 u32 rtl92e_readl(struct net_device *dev, int x)
103 {
104 return readl((u8 __iomem *)dev->mem_start + x);
105 }
106
rtl92e_readw(struct net_device * dev,int x)107 u16 rtl92e_readw(struct net_device *dev, int x)
108 {
109 return readw((u8 __iomem *)dev->mem_start + x);
110 }
111
rtl92e_writeb(struct net_device * dev,int x,u8 y)112 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
113 {
114 writeb(y, (u8 __iomem *)dev->mem_start + x);
115
116 udelay(20);
117 }
118
rtl92e_writel(struct net_device * dev,int x,u32 y)119 void rtl92e_writel(struct net_device *dev, int x, u32 y)
120 {
121 writel(y, (u8 __iomem *)dev->mem_start + x);
122
123 udelay(20);
124 }
125
rtl92e_writew(struct net_device * dev,int x,u16 y)126 void rtl92e_writew(struct net_device *dev, int x, u16 y)
127 {
128 writew(y, (u8 __iomem *)dev->mem_start + x);
129
130 udelay(20);
131 }
132
133 /****************************************************************************
134 * -----------------------------GENERAL FUNCTION-------------------------
135 ****************************************************************************/
rtl92e_set_rf_state(struct net_device * dev,enum rt_rf_power_state StateToSet,RT_RF_CHANGE_SOURCE ChangeSource)136 bool rtl92e_set_rf_state(struct net_device *dev,
137 enum rt_rf_power_state StateToSet,
138 RT_RF_CHANGE_SOURCE ChangeSource)
139 {
140 struct r8192_priv *priv = rtllib_priv(dev);
141 struct rtllib_device *ieee = priv->rtllib;
142 bool bActionAllowed = false;
143 bool bConnectBySSID = false;
144 enum rt_rf_power_state rtState;
145 u16 RFWaitCounter = 0;
146 unsigned long flag;
147
148 RT_TRACE((COMP_PS | COMP_RF),
149 "===>%s: StateToSet(%d)\n", __func__, StateToSet);
150
151 while (true) {
152 spin_lock_irqsave(&priv->rf_ps_lock, flag);
153 if (priv->RFChangeInProgress) {
154 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
155 RT_TRACE((COMP_PS | COMP_RF),
156 "%s: RF Change in progress! Wait to set..StateToSet(%d).\n",
157 __func__, StateToSet);
158
159 while (priv->RFChangeInProgress) {
160 RFWaitCounter++;
161 RT_TRACE((COMP_PS | COMP_RF),
162 "%s: Wait 1 ms (%d times)...\n",
163 __func__, RFWaitCounter);
164 mdelay(1);
165
166 if (RFWaitCounter > 100) {
167 netdev_warn(dev,
168 "%s(): Timeout waiting for RF change.\n",
169 __func__);
170 return false;
171 }
172 }
173 } else {
174 priv->RFChangeInProgress = true;
175 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
176 break;
177 }
178 }
179
180 rtState = priv->rtllib->eRFPowerState;
181
182 switch (StateToSet) {
183 case eRfOn:
184 priv->rtllib->RfOffReason &= (~ChangeSource);
185
186 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
187 priv->bHwRadioOff = false;
188
189 if (!priv->rtllib->RfOffReason) {
190 priv->rtllib->RfOffReason = 0;
191 bActionAllowed = true;
192
193
194 if (rtState == eRfOff &&
195 ChangeSource >= RF_CHANGE_BY_HW)
196 bConnectBySSID = true;
197 } else {
198 RT_TRACE((COMP_PS | COMP_RF),
199 "%s - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
200 __func__, priv->rtllib->RfOffReason, ChangeSource);
201 }
202
203 break;
204
205 case eRfOff:
206
207 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
208 (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
209 if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
210 (ChangeSource > RF_CHANGE_BY_IPS)) {
211 if (ieee->state == RTLLIB_LINKED)
212 priv->blinked_ingpio = true;
213 else
214 priv->blinked_ingpio = false;
215 rtllib_MgntDisconnect(priv->rtllib,
216 WLAN_REASON_DISASSOC_STA_HAS_LEFT);
217 }
218 }
219 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
220 priv->bHwRadioOff = true;
221 priv->rtllib->RfOffReason |= ChangeSource;
222 bActionAllowed = true;
223 break;
224
225 case eRfSleep:
226 priv->rtllib->RfOffReason |= ChangeSource;
227 bActionAllowed = true;
228 break;
229
230 default:
231 break;
232 }
233
234 if (bActionAllowed) {
235 RT_TRACE((COMP_PS | COMP_RF),
236 "%s: Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
237 __func__, StateToSet, priv->rtllib->RfOffReason);
238 PHY_SetRFPowerState(dev, StateToSet);
239 if (StateToSet == eRfOn) {
240
241 if (bConnectBySSID && priv->blinked_ingpio) {
242 schedule_delayed_work(
243 &ieee->associate_procedure_wq, 0);
244 priv->blinked_ingpio = false;
245 }
246 }
247 } else {
248 RT_TRACE((COMP_PS | COMP_RF),
249 "%s: Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
250 __func__, StateToSet, ChangeSource, priv->rtllib->RfOffReason);
251 }
252
253 spin_lock_irqsave(&priv->rf_ps_lock, flag);
254 priv->RFChangeInProgress = false;
255 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
256
257 RT_TRACE((COMP_PS | COMP_RF), "<===%s\n", __func__);
258 return bActionAllowed;
259 }
260
_rtl92e_check_nic_enough_desc(struct net_device * dev,int prio)261 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
262 {
263 struct r8192_priv *priv = rtllib_priv(dev);
264 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
265
266 if (ring->entries - skb_queue_len(&ring->queue) >= 2)
267 return 1;
268 return 0;
269 }
270
_rtl92e_tx_timeout(struct net_device * dev,unsigned int txqueue)271 static void _rtl92e_tx_timeout(struct net_device *dev, unsigned int txqueue)
272 {
273 struct r8192_priv *priv = rtllib_priv(dev);
274
275 schedule_work(&priv->reset_wq);
276 netdev_info(dev, "TXTIMEOUT");
277 }
278
rtl92e_irq_enable(struct net_device * dev)279 void rtl92e_irq_enable(struct net_device *dev)
280 {
281 struct r8192_priv *priv = rtllib_priv(dev);
282
283 priv->irq_enabled = 1;
284
285 priv->ops->irq_enable(dev);
286 }
287
rtl92e_irq_disable(struct net_device * dev)288 void rtl92e_irq_disable(struct net_device *dev)
289 {
290 struct r8192_priv *priv = rtllib_priv(dev);
291
292 priv->ops->irq_disable(dev);
293
294 priv->irq_enabled = 0;
295 }
296
_rtl92e_set_chan(struct net_device * dev,short ch)297 static void _rtl92e_set_chan(struct net_device *dev, short ch)
298 {
299 struct r8192_priv *priv = rtllib_priv(dev);
300
301 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
302 if (priv->chan_forced)
303 return;
304
305 priv->chan = ch;
306
307 if (priv->rf_set_chan)
308 priv->rf_set_chan(dev, priv->chan);
309 }
310
_rtl92e_update_cap(struct net_device * dev,u16 cap)311 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
312 {
313 struct r8192_priv *priv = rtllib_priv(dev);
314 struct rtllib_network *net = &priv->rtllib->current_network;
315 bool ShortPreamble;
316
317 if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
318 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
319 ShortPreamble = true;
320 priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
321 RT_TRACE(COMP_DBG,
322 "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
323 __func__);
324 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
325 (unsigned char *)&ShortPreamble);
326 }
327 } else {
328 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
329 ShortPreamble = false;
330 priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
331 RT_TRACE(COMP_DBG,
332 "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
333 __func__);
334 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
335 (unsigned char *)&ShortPreamble);
336 }
337 }
338
339 if (net->mode & (IEEE_G | IEEE_N_24G)) {
340 u8 slot_time_val;
341 u8 CurSlotTime = priv->slot_time;
342
343 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
344 (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
345 if (CurSlotTime != SHORT_SLOT_TIME) {
346 slot_time_val = SHORT_SLOT_TIME;
347 priv->rtllib->SetHwRegHandler(dev,
348 HW_VAR_SLOT_TIME, &slot_time_val);
349 }
350 } else {
351 if (CurSlotTime != NON_SHORT_SLOT_TIME) {
352 slot_time_val = NON_SHORT_SLOT_TIME;
353 priv->rtllib->SetHwRegHandler(dev,
354 HW_VAR_SLOT_TIME, &slot_time_val);
355 }
356 }
357 }
358 }
359
360 static const struct rtllib_qos_parameters def_qos_parameters = {
361 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
362 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
363 {2, 2, 2, 2},
364 {0, 0, 0, 0},
365 {0, 0, 0, 0}
366 };
367
_rtl92e_update_beacon(void * data)368 static void _rtl92e_update_beacon(void *data)
369 {
370 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
371 update_beacon_wq.work);
372 struct net_device *dev = priv->rtllib->dev;
373 struct rtllib_device *ieee = priv->rtllib;
374 struct rtllib_network *net = &ieee->current_network;
375
376 if (ieee->pHTInfo->bCurrentHTSupport)
377 HT_update_self_and_peer_setting(ieee, net);
378 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
379 net->bssht.bdRT2RTLongSlotTime;
380 ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
381 _rtl92e_update_cap(dev, net->capability);
382 }
383
_rtl92e_qos_activate(void * data)384 static void _rtl92e_qos_activate(void *data)
385 {
386 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
387 qos_activate);
388 struct net_device *dev = priv->rtllib->dev;
389 int i;
390
391 mutex_lock(&priv->mutex);
392 if (priv->rtllib->state != RTLLIB_LINKED)
393 goto success;
394 RT_TRACE(COMP_QOS,
395 "qos active process with associate response received\n");
396
397 for (i = 0; i < QOS_QUEUE_NUM; i++)
398 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
399
400
401 success:
402 mutex_unlock(&priv->mutex);
403 }
404
_rtl92e_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct rtllib_network * network)405 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
406 int active_network,
407 struct rtllib_network *network)
408 {
409 int ret = 0;
410 u32 size = sizeof(struct rtllib_qos_parameters);
411
412 if (priv->rtllib->state != RTLLIB_LINKED)
413 return ret;
414
415 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
416 return ret;
417
418 if (network->flags & NETWORK_HAS_QOS_MASK) {
419 if (active_network &&
420 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
421 network->qos_data.active = network->qos_data.supported;
422
423 if ((network->qos_data.active == 1) && (active_network == 1) &&
424 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
425 (network->qos_data.old_param_count !=
426 network->qos_data.param_count)) {
427 network->qos_data.old_param_count =
428 network->qos_data.param_count;
429 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
430 schedule_work(&priv->qos_activate);
431 RT_TRACE(COMP_QOS,
432 "QoS parameters change call qos_activate\n");
433 }
434 } else {
435 memcpy(&priv->rtllib->current_network.qos_data.parameters,
436 &def_qos_parameters, size);
437
438 if ((network->qos_data.active == 1) && (active_network == 1)) {
439 schedule_work(&priv->qos_activate);
440 RT_TRACE(COMP_QOS,
441 "QoS was disabled call qos_activate\n");
442 }
443 network->qos_data.active = 0;
444 network->qos_data.supported = 0;
445 }
446
447 return 0;
448 }
449
_rtl92e_handle_beacon(struct net_device * dev,struct rtllib_beacon * beacon,struct rtllib_network * network)450 static int _rtl92e_handle_beacon(struct net_device *dev,
451 struct rtllib_beacon *beacon,
452 struct rtllib_network *network)
453 {
454 struct r8192_priv *priv = rtllib_priv(dev);
455
456 _rtl92e_qos_handle_probe_response(priv, 1, network);
457
458 schedule_delayed_work(&priv->update_beacon_wq, 0);
459 return 0;
460
461 }
462
_rtl92e_qos_assoc_resp(struct r8192_priv * priv,struct rtllib_network * network)463 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
464 struct rtllib_network *network)
465 {
466 unsigned long flags;
467 u32 size = sizeof(struct rtllib_qos_parameters);
468 int set_qos_param = 0;
469
470 if (!priv || !network)
471 return 0;
472
473 if (priv->rtllib->state != RTLLIB_LINKED)
474 return 0;
475
476 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
477 return 0;
478
479 spin_lock_irqsave(&priv->rtllib->lock, flags);
480 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
481 memcpy(&priv->rtllib->current_network.qos_data.parameters,
482 &network->qos_data.parameters,
483 sizeof(struct rtllib_qos_parameters));
484 priv->rtllib->current_network.qos_data.active = 1;
485 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
486 set_qos_param = 1;
487 priv->rtllib->current_network.qos_data.old_param_count =
488 priv->rtllib->current_network.qos_data.param_count;
489 priv->rtllib->current_network.qos_data.param_count =
490 network->qos_data.param_count;
491 } else {
492 memcpy(&priv->rtllib->current_network.qos_data.parameters,
493 &def_qos_parameters, size);
494 priv->rtllib->current_network.qos_data.active = 0;
495 priv->rtllib->current_network.qos_data.supported = 0;
496 set_qos_param = 1;
497 }
498
499 spin_unlock_irqrestore(&priv->rtllib->lock, flags);
500
501 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
502 network->flags, priv->rtllib->current_network.qos_data.active);
503 if (set_qos_param == 1) {
504 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
505 schedule_work(&priv->qos_activate);
506 }
507 return 0;
508 }
509
_rtl92e_handle_assoc_response(struct net_device * dev,struct rtllib_assoc_response_frame * resp,struct rtllib_network * network)510 static int _rtl92e_handle_assoc_response(struct net_device *dev,
511 struct rtllib_assoc_response_frame *resp,
512 struct rtllib_network *network)
513 {
514 struct r8192_priv *priv = rtllib_priv(dev);
515
516 _rtl92e_qos_assoc_resp(priv, network);
517 return 0;
518 }
519
_rtl92e_prepare_beacon(struct tasklet_struct * t)520 static void _rtl92e_prepare_beacon(struct tasklet_struct *t)
521 {
522 struct r8192_priv *priv = from_tasklet(priv, t,
523 irq_prepare_beacon_tasklet);
524 struct net_device *dev = priv->rtllib->dev;
525 struct sk_buff *pskb = NULL, *pnewskb = NULL;
526 struct cb_desc *tcb_desc = NULL;
527 struct rtl8192_tx_ring *ring = NULL;
528 struct tx_desc *pdesc = NULL;
529
530 ring = &priv->tx_ring[BEACON_QUEUE];
531 pskb = __skb_dequeue(&ring->queue);
532 kfree_skb(pskb);
533
534 pnewskb = rtllib_get_beacon(priv->rtllib);
535 if (!pnewskb)
536 return;
537
538 tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
539 tcb_desc->queue_index = BEACON_QUEUE;
540 tcb_desc->data_rate = 2;
541 tcb_desc->RATRIndex = 7;
542 tcb_desc->bTxDisableRateFallBack = 1;
543 tcb_desc->bTxUseDriverAssingedRate = 1;
544 skb_push(pnewskb, priv->rtllib->tx_headroom);
545
546 pdesc = &ring->desc[0];
547 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
548 __skb_queue_tail(&ring->queue, pnewskb);
549 pdesc->OWN = 1;
550 }
551
_rtl92e_stop_beacon(struct net_device * dev)552 static void _rtl92e_stop_beacon(struct net_device *dev)
553 {
554 }
555
rtl92e_config_rate(struct net_device * dev,u16 * rate_config)556 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
557 {
558 struct r8192_priv *priv = rtllib_priv(dev);
559 struct rtllib_network *net;
560 u8 i = 0, basic_rate = 0;
561
562 net = &priv->rtllib->current_network;
563
564 for (i = 0; i < net->rates_len; i++) {
565 basic_rate = net->rates[i] & 0x7f;
566 switch (basic_rate) {
567 case MGN_1M:
568 *rate_config |= RRSR_1M;
569 break;
570 case MGN_2M:
571 *rate_config |= RRSR_2M;
572 break;
573 case MGN_5_5M:
574 *rate_config |= RRSR_5_5M;
575 break;
576 case MGN_11M:
577 *rate_config |= RRSR_11M;
578 break;
579 case MGN_6M:
580 *rate_config |= RRSR_6M;
581 break;
582 case MGN_9M:
583 *rate_config |= RRSR_9M;
584 break;
585 case MGN_12M:
586 *rate_config |= RRSR_12M;
587 break;
588 case MGN_18M:
589 *rate_config |= RRSR_18M;
590 break;
591 case MGN_24M:
592 *rate_config |= RRSR_24M;
593 break;
594 case MGN_36M:
595 *rate_config |= RRSR_36M;
596 break;
597 case MGN_48M:
598 *rate_config |= RRSR_48M;
599 break;
600 case MGN_54M:
601 *rate_config |= RRSR_54M;
602 break;
603 }
604 }
605
606 for (i = 0; i < net->rates_ex_len; i++) {
607 basic_rate = net->rates_ex[i] & 0x7f;
608 switch (basic_rate) {
609 case MGN_1M:
610 *rate_config |= RRSR_1M;
611 break;
612 case MGN_2M:
613 *rate_config |= RRSR_2M;
614 break;
615 case MGN_5_5M:
616 *rate_config |= RRSR_5_5M;
617 break;
618 case MGN_11M:
619 *rate_config |= RRSR_11M;
620 break;
621 case MGN_6M:
622 *rate_config |= RRSR_6M;
623 break;
624 case MGN_9M:
625 *rate_config |= RRSR_9M;
626 break;
627 case MGN_12M:
628 *rate_config |= RRSR_12M;
629 break;
630 case MGN_18M:
631 *rate_config |= RRSR_18M;
632 break;
633 case MGN_24M:
634 *rate_config |= RRSR_24M;
635 break;
636 case MGN_36M:
637 *rate_config |= RRSR_36M;
638 break;
639 case MGN_48M:
640 *rate_config |= RRSR_48M;
641 break;
642 case MGN_54M:
643 *rate_config |= RRSR_54M;
644 break;
645 }
646 }
647 }
648
_rtl92e_refresh_support_rate(struct r8192_priv * priv)649 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
650 {
651 struct rtllib_device *ieee = priv->rtllib;
652
653 if (ieee->mode == WIRELESS_MODE_N_24G ||
654 ieee->mode == WIRELESS_MODE_N_5G) {
655 memcpy(ieee->Regdot11HTOperationalRateSet,
656 ieee->RegHTSuppRateSet, 16);
657 memcpy(ieee->Regdot11TxHTOperationalRateSet,
658 ieee->RegHTSuppRateSet, 16);
659
660 } else {
661 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
662 }
663 }
664
_rtl92e_get_supported_wireless_mode(struct net_device * dev)665 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
666 {
667 struct r8192_priv *priv = rtllib_priv(dev);
668 u8 ret = 0;
669
670 switch (priv->rf_chip) {
671 case RF_8225:
672 case RF_8256:
673 case RF_6052:
674 case RF_PSEUDO_11N:
675 ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
676 break;
677 case RF_8258:
678 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
679 break;
680 default:
681 ret = WIRELESS_MODE_B;
682 break;
683 }
684 return ret;
685 }
686
rtl92e_set_wireless_mode(struct net_device * dev,u8 wireless_mode)687 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
688 {
689 struct r8192_priv *priv = rtllib_priv(dev);
690 u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
691
692 if ((wireless_mode == WIRELESS_MODE_AUTO) ||
693 ((wireless_mode & bSupportMode) == 0)) {
694 if (bSupportMode & WIRELESS_MODE_N_24G) {
695 wireless_mode = WIRELESS_MODE_N_24G;
696 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
697 wireless_mode = WIRELESS_MODE_N_5G;
698 } else if ((bSupportMode & WIRELESS_MODE_A)) {
699 wireless_mode = WIRELESS_MODE_A;
700 } else if ((bSupportMode & WIRELESS_MODE_G)) {
701 wireless_mode = WIRELESS_MODE_G;
702 } else if ((bSupportMode & WIRELESS_MODE_B)) {
703 wireless_mode = WIRELESS_MODE_B;
704 } else {
705 netdev_info(dev,
706 "%s(): Unsupported mode requested. Fallback to 802.11b\n",
707 __func__);
708 wireless_mode = WIRELESS_MODE_B;
709 }
710 }
711
712 if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
713 (WIRELESS_MODE_G | WIRELESS_MODE_B))
714 wireless_mode = WIRELESS_MODE_G;
715
716 priv->rtllib->mode = wireless_mode;
717
718 if ((wireless_mode == WIRELESS_MODE_N_24G) ||
719 (wireless_mode == WIRELESS_MODE_N_5G)) {
720 priv->rtllib->pHTInfo->bEnableHT = 1;
721 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
722 __func__, wireless_mode);
723 } else {
724 priv->rtllib->pHTInfo->bEnableHT = 0;
725 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
726 __func__, wireless_mode);
727 }
728
729 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
730 _rtl92e_refresh_support_rate(priv);
731 }
732
_rtl92e_sta_up(struct net_device * dev,bool is_silent_reset)733 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
734 {
735 struct r8192_priv *priv = rtllib_priv(dev);
736 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
737 (&priv->rtllib->PowerSaveControl);
738 bool init_status;
739
740 priv->bDriverIsGoingToUnload = false;
741 priv->bdisable_nic = false;
742
743 priv->up = 1;
744 priv->rtllib->ieee_up = 1;
745
746 priv->up_first_time = 0;
747 RT_TRACE(COMP_INIT, "Bringing up iface");
748 priv->bfirst_init = true;
749 init_status = priv->ops->initialize_adapter(dev);
750 if (!init_status) {
751 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
752 priv->bfirst_init = false;
753 return -1;
754 }
755
756 RT_TRACE(COMP_INIT, "start adapter finished\n");
757 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
758 priv->bfirst_init = false;
759
760 if (priv->polling_timer_on == 0)
761 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
762
763 if (priv->rtllib->state != RTLLIB_LINKED)
764 rtllib_softmac_start_protocol(priv->rtllib, 0);
765 rtllib_reset_queue(priv->rtllib);
766 _rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
767
768 if (!netif_queue_stopped(dev))
769 netif_start_queue(dev);
770 else
771 netif_wake_queue(dev);
772
773 return 0;
774 }
775
_rtl92e_sta_down(struct net_device * dev,bool shutdownrf)776 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
777 {
778 struct r8192_priv *priv = rtllib_priv(dev);
779 unsigned long flags = 0;
780 u8 RFInProgressTimeOut = 0;
781
782 if (priv->up == 0)
783 return -1;
784
785 if (priv->rtllib->rtllib_ips_leave)
786 priv->rtllib->rtllib_ips_leave(dev);
787
788 if (priv->rtllib->state == RTLLIB_LINKED)
789 rtl92e_leisure_ps_leave(dev);
790
791 priv->bDriverIsGoingToUnload = true;
792 priv->up = 0;
793 priv->rtllib->ieee_up = 0;
794 priv->bfirst_after_down = true;
795 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
796 if (!netif_queue_stopped(dev))
797 netif_stop_queue(dev);
798
799 priv->rtllib->wpa_ie_len = 0;
800 kfree(priv->rtllib->wpa_ie);
801 priv->rtllib->wpa_ie = NULL;
802 rtl92e_cam_reset(dev);
803 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
804 rtl92e_irq_disable(dev);
805
806 del_timer_sync(&priv->watch_dog_timer);
807 _rtl92e_cancel_deferred_work(priv);
808 cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
809
810 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
811 spin_lock_irqsave(&priv->rf_ps_lock, flags);
812 while (priv->RFChangeInProgress) {
813 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
814 if (RFInProgressTimeOut > 100) {
815 spin_lock_irqsave(&priv->rf_ps_lock, flags);
816 break;
817 }
818 RT_TRACE(COMP_DBG,
819 "===>%s():RF is in progress, need to wait until rf change is done.\n",
820 __func__);
821 mdelay(1);
822 RFInProgressTimeOut++;
823 spin_lock_irqsave(&priv->rf_ps_lock, flags);
824 }
825 priv->RFChangeInProgress = true;
826 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
827 priv->ops->stop_adapter(dev, false);
828 spin_lock_irqsave(&priv->rf_ps_lock, flags);
829 priv->RFChangeInProgress = false;
830 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
831 udelay(100);
832 memset(&priv->rtllib->current_network, 0,
833 offsetof(struct rtllib_network, list));
834 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
835
836 return 0;
837 }
838
_rtl92e_init_priv_handler(struct net_device * dev)839 static void _rtl92e_init_priv_handler(struct net_device *dev)
840 {
841 struct r8192_priv *priv = rtllib_priv(dev);
842
843 priv->rtllib->softmac_hard_start_xmit = _rtl92e_hard_start_xmit;
844 priv->rtllib->set_chan = _rtl92e_set_chan;
845 priv->rtllib->link_change = priv->ops->link_change;
846 priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
847 priv->rtllib->check_nic_enough_desc = _rtl92e_check_nic_enough_desc;
848 priv->rtllib->handle_assoc_response = _rtl92e_handle_assoc_response;
849 priv->rtllib->handle_beacon = _rtl92e_handle_beacon;
850 priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
851 priv->rtllib->LeisurePSLeave = rtl92e_leisure_ps_leave;
852 priv->rtllib->SetBWModeHandler = rtl92e_set_bw_mode;
853 priv->rf_set_chan = rtl92e_set_channel;
854
855 priv->rtllib->start_send_beacons = rtl92e_start_beacon;
856 priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
857
858 priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
859 priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
860 priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
861
862 priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
863 priv->rtllib->GetHalfNmodeSupportByAPsHandler =
864 rtl92e_is_halfn_supported_by_ap;
865
866 priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
867 priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
868 priv->rtllib->SetFwCmdHandler = NULL;
869 priv->rtllib->InitialGainHandler = rtl92e_init_gain;
870 priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
871 priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
872
873 priv->rtllib->LedControlHandler = NULL;
874 priv->rtllib->UpdateBeaconInterruptHandler = NULL;
875
876 priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
877 }
878
_rtl92e_init_priv_constant(struct net_device * dev)879 static void _rtl92e_init_priv_constant(struct net_device *dev)
880 {
881 struct r8192_priv *priv = rtllib_priv(dev);
882 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
883 &priv->rtllib->PowerSaveControl;
884
885 pPSC->RegMaxLPSAwakeIntvl = 5;
886 }
887
888
_rtl92e_init_priv_variable(struct net_device * dev)889 static void _rtl92e_init_priv_variable(struct net_device *dev)
890 {
891 struct r8192_priv *priv = rtllib_priv(dev);
892 u8 i;
893
894 priv->AcmMethod = eAcmWay2_SW;
895 priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
896 priv->rtllib->status = 0;
897 priv->polling_timer_on = 0;
898 priv->up_first_time = 1;
899 priv->blinked_ingpio = false;
900 priv->bDriverIsGoingToUnload = false;
901 priv->being_init_adapter = false;
902 priv->initialized_at_probe = false;
903 priv->bdisable_nic = false;
904 priv->bfirst_init = false;
905 priv->txringcount = 64;
906 priv->rxbuffersize = 9100;
907 priv->rxringcount = MAX_RX_COUNT;
908 priv->irq_enabled = 0;
909 priv->chan = 1;
910 priv->RegChannelPlan = 0xf;
911 priv->rtllib->mode = WIRELESS_MODE_AUTO;
912 priv->rtllib->iw_mode = IW_MODE_INFRA;
913 priv->rtllib->bNetPromiscuousMode = false;
914 priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
915 priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
916 false;
917 priv->rtllib->ieee_up = 0;
918 priv->retry_rts = DEFAULT_RETRY_RTS;
919 priv->retry_data = DEFAULT_RETRY_DATA;
920 priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
921 priv->rtllib->rate = 110;
922 priv->rtllib->short_slot = 1;
923 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
924 priv->bcck_in_ch14 = false;
925 priv->bfsync_processing = false;
926 priv->CCKPresentAttentuation = 0;
927 priv->rfa_txpowertrackingindex = 0;
928 priv->rfc_txpowertrackingindex = 0;
929 priv->CckPwEnl = 6;
930 priv->ScanDelay = 50;
931 priv->ResetProgress = RESET_TYPE_NORESET;
932 priv->bForcedSilentReset = false;
933 priv->bDisableNormalResetCheck = false;
934 priv->force_reset = false;
935 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
936
937 memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
938 priv->RxCounter = 0;
939 priv->rtllib->wx_set_enc = 0;
940 priv->bHwRadioOff = false;
941 priv->RegRfOff = false;
942 priv->isRFOff = false;
943 priv->bInPowerSaveMode = false;
944 priv->rtllib->RfOffReason = 0;
945 priv->RFChangeInProgress = false;
946 priv->bHwRfOffAction = 0;
947 priv->SetRFPowerStateInProgress = false;
948 priv->rtllib->PowerSaveControl.bInactivePs = true;
949 priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
950 priv->rtllib->PowerSaveControl.bLeisurePs = true;
951 priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
952 priv->rtllib->LPSDelayCnt = 0;
953 priv->rtllib->sta_sleep = LPS_IS_WAKE;
954 priv->rtllib->eRFPowerState = eRfOn;
955
956 priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
957 priv->rtllib->iw_mode = IW_MODE_INFRA;
958 priv->rtllib->active_scan = 1;
959 priv->rtllib->be_scan_inprogress = false;
960 priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
961 RTLLIB_OFDM_MODULATION;
962 priv->rtllib->host_encrypt = 1;
963 priv->rtllib->host_decrypt = 1;
964
965 priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
966
967 priv->card_type = PCI;
968
969 priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
970 if (!priv->pFirmware)
971 netdev_err(dev,
972 "rtl8192e: Unable to allocate space for firmware\n");
973
974 skb_queue_head_init(&priv->skb_queue);
975
976 for (i = 0; i < MAX_QUEUE_SIZE; i++)
977 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
978 for (i = 0; i < MAX_QUEUE_SIZE; i++)
979 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
980 }
981
_rtl92e_init_priv_lock(struct r8192_priv * priv)982 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
983 {
984 spin_lock_init(&priv->tx_lock);
985 spin_lock_init(&priv->irq_th_lock);
986 spin_lock_init(&priv->rf_ps_lock);
987 spin_lock_init(&priv->ps_lock);
988 mutex_init(&priv->wx_mutex);
989 mutex_init(&priv->rf_mutex);
990 mutex_init(&priv->mutex);
991 }
992
_rtl92e_init_priv_task(struct net_device * dev)993 static void _rtl92e_init_priv_task(struct net_device *dev)
994 {
995 struct r8192_priv *priv = rtllib_priv(dev);
996
997 INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
998 INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
999 dev);
1000 INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1001 (void *)_rtl92e_watchdog_wq_cb, dev);
1002 INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1003 (void *)rtl92e_dm_txpower_tracking_wq, dev);
1004 INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1005 (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1006 INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1007 (void *)_rtl92e_update_beacon, dev);
1008 INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1009 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1010 (void *)rtl92e_hw_wakeup_wq, dev);
1011 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1012 (void *)rtl92e_hw_sleep_wq, dev);
1013 tasklet_setup(&priv->irq_rx_tasklet, _rtl92e_irq_rx_tasklet);
1014 tasklet_setup(&priv->irq_tx_tasklet, _rtl92e_irq_tx_tasklet);
1015 tasklet_setup(&priv->irq_prepare_beacon_tasklet,
1016 _rtl92e_prepare_beacon);
1017 }
1018
_rtl92e_get_channel_map(struct net_device * dev)1019 static short _rtl92e_get_channel_map(struct net_device *dev)
1020 {
1021 int i;
1022
1023 struct r8192_priv *priv = rtllib_priv(dev);
1024
1025 if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
1026 (priv->rf_chip != RF_6052)) {
1027 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1028 __func__);
1029 return -1;
1030 }
1031
1032 if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1033 netdev_info(dev,
1034 "rtl819x_init:Error channel plan! Set to default.\n");
1035 priv->ChannelPlan = COUNTRY_CODE_FCC;
1036 }
1037 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1038 dot11d_init(priv->rtllib);
1039 dot11d_channel_map(priv->ChannelPlan, priv->rtllib);
1040 for (i = 1; i <= 11; i++)
1041 (priv->rtllib->active_channel_map)[i] = 1;
1042 (priv->rtllib->active_channel_map)[12] = 2;
1043 (priv->rtllib->active_channel_map)[13] = 2;
1044
1045 return 0;
1046 }
1047
_rtl92e_init(struct net_device * dev)1048 static short _rtl92e_init(struct net_device *dev)
1049 {
1050 struct r8192_priv *priv = rtllib_priv(dev);
1051
1052 memset(&priv->stats, 0, sizeof(struct rt_stats));
1053
1054 _rtl92e_init_priv_handler(dev);
1055 _rtl92e_init_priv_constant(dev);
1056 _rtl92e_init_priv_variable(dev);
1057 _rtl92e_init_priv_lock(priv);
1058 _rtl92e_init_priv_task(dev);
1059 priv->ops->get_eeprom_size(dev);
1060 priv->ops->init_adapter_variable(dev);
1061 _rtl92e_get_channel_map(dev);
1062
1063 rtl92e_dm_init(dev);
1064
1065 timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
1066
1067 timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
1068 0);
1069
1070 rtl92e_irq_disable(dev);
1071 if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1072 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1073 return -1;
1074 }
1075
1076 priv->irq = dev->irq;
1077 RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1078
1079 if (_rtl92e_pci_initdescring(dev) != 0) {
1080 netdev_err(dev, "Endopoints initialization failed");
1081 free_irq(dev->irq, dev);
1082 return -1;
1083 }
1084
1085 return 0;
1086 }
1087
1088 /***************************************************************************
1089 * -------------------------------WATCHDOG STUFF---------------------------
1090 **************************************************************************/
_rtl92e_is_tx_queue_empty(struct net_device * dev)1091 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1092 {
1093 int i = 0;
1094 struct r8192_priv *priv = rtllib_priv(dev);
1095
1096 for (i = 0; i <= MGNT_QUEUE; i++) {
1097 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1098 continue;
1099 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1100 netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1101 i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1102 return 0;
1103 }
1104 }
1105 return 1;
1106 }
1107
_rtl92e_tx_check_stuck(struct net_device * dev)1108 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1109 {
1110 struct r8192_priv *priv = rtllib_priv(dev);
1111 u8 QueueID;
1112 bool bCheckFwTxCnt = false;
1113 struct rtl8192_tx_ring *ring = NULL;
1114 struct sk_buff *skb = NULL;
1115 struct cb_desc *tcb_desc = NULL;
1116 unsigned long flags = 0;
1117
1118 switch (priv->rtllib->ps) {
1119 case RTLLIB_PS_DISABLED:
1120 break;
1121 case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1122 break;
1123 default:
1124 break;
1125 }
1126 spin_lock_irqsave(&priv->irq_th_lock, flags);
1127 for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1128 if (QueueID == TXCMD_QUEUE)
1129 continue;
1130
1131 if (QueueID == BEACON_QUEUE)
1132 continue;
1133
1134 ring = &priv->tx_ring[QueueID];
1135
1136 if (skb_queue_len(&ring->queue) == 0) {
1137 continue;
1138 } else {
1139 skb = __skb_peek(&ring->queue);
1140 tcb_desc = (struct cb_desc *)(skb->cb +
1141 MAX_DEV_ADDR_SIZE);
1142 tcb_desc->nStuckCount++;
1143 bCheckFwTxCnt = true;
1144 if (tcb_desc->nStuckCount > 1)
1145 netdev_info(dev,
1146 "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1147 __func__, QueueID,
1148 tcb_desc->nStuckCount);
1149 }
1150 }
1151 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1152
1153 if (bCheckFwTxCnt) {
1154 if (priv->ops->TxCheckStuckHandler(dev)) {
1155 RT_TRACE(COMP_RESET,
1156 "TxCheckStuck(): Fw indicates no Tx condition!\n");
1157 return RESET_TYPE_SILENT;
1158 }
1159 }
1160
1161 return RESET_TYPE_NORESET;
1162 }
1163
_rtl92e_rx_check_stuck(struct net_device * dev)1164 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1165 {
1166 struct r8192_priv *priv = rtllib_priv(dev);
1167
1168 if (priv->ops->RxCheckStuckHandler(dev)) {
1169 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1170 return RESET_TYPE_SILENT;
1171 }
1172
1173 return RESET_TYPE_NORESET;
1174 }
1175
_rtl92e_if_check_reset(struct net_device * dev)1176 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1177 {
1178 struct r8192_priv *priv = rtllib_priv(dev);
1179 enum reset_type TxResetType = RESET_TYPE_NORESET;
1180 enum reset_type RxResetType = RESET_TYPE_NORESET;
1181 enum rt_rf_power_state rfState;
1182
1183 rfState = priv->rtllib->eRFPowerState;
1184
1185 if (rfState == eRfOn)
1186 TxResetType = _rtl92e_tx_check_stuck(dev);
1187
1188 if (rfState == eRfOn &&
1189 (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1190 (priv->rtllib->state == RTLLIB_LINKED))
1191 RxResetType = _rtl92e_rx_check_stuck(dev);
1192
1193 if (TxResetType == RESET_TYPE_NORMAL ||
1194 RxResetType == RESET_TYPE_NORMAL) {
1195 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1196 __func__, TxResetType, RxResetType);
1197 return RESET_TYPE_NORMAL;
1198 } else if (TxResetType == RESET_TYPE_SILENT ||
1199 RxResetType == RESET_TYPE_SILENT) {
1200 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1201 __func__, TxResetType, RxResetType);
1202 return RESET_TYPE_SILENT;
1203 } else {
1204 return RESET_TYPE_NORESET;
1205 }
1206
1207 }
1208
_rtl92e_if_silent_reset(struct net_device * dev)1209 static void _rtl92e_if_silent_reset(struct net_device *dev)
1210 {
1211 struct r8192_priv *priv = rtllib_priv(dev);
1212 u8 reset_times = 0;
1213 int reset_status = 0;
1214 struct rtllib_device *ieee = priv->rtllib;
1215 unsigned long flag;
1216
1217 if (priv->ResetProgress == RESET_TYPE_NORESET) {
1218
1219 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1220
1221 priv->ResetProgress = RESET_TYPE_SILENT;
1222
1223 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1224 if (priv->RFChangeInProgress) {
1225 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1226 goto END;
1227 }
1228 priv->RFChangeInProgress = true;
1229 priv->bResetInProgress = true;
1230 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1231
1232 RESET_START:
1233
1234 mutex_lock(&priv->wx_mutex);
1235
1236 if (priv->rtllib->state == RTLLIB_LINKED)
1237 rtl92e_leisure_ps_leave(dev);
1238
1239 if (priv->up) {
1240 netdev_info(dev, "%s():the driver is not up.\n",
1241 __func__);
1242 mutex_unlock(&priv->wx_mutex);
1243 return;
1244 }
1245 priv->up = 0;
1246
1247 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1248 __func__);
1249 mdelay(1000);
1250 RT_TRACE(COMP_RESET,
1251 "%s():111111111111111111111111======>start to down the driver\n",
1252 __func__);
1253
1254 if (!netif_queue_stopped(dev))
1255 netif_stop_queue(dev);
1256
1257 rtl92e_irq_disable(dev);
1258 del_timer_sync(&priv->watch_dog_timer);
1259 _rtl92e_cancel_deferred_work(priv);
1260 rtl92e_dm_deinit(dev);
1261 rtllib_stop_scan_syncro(ieee);
1262
1263 if (ieee->state == RTLLIB_LINKED) {
1264 mutex_lock(&ieee->wx_mutex);
1265 netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1266 rtllib_stop_send_beacons(priv->rtllib);
1267 del_timer_sync(&ieee->associate_timer);
1268 cancel_delayed_work(&ieee->associate_retry_wq);
1269 rtllib_stop_scan(ieee);
1270 netif_carrier_off(dev);
1271 mutex_unlock(&ieee->wx_mutex);
1272 } else {
1273 netdev_info(dev, "ieee->state is NOT LINKED\n");
1274 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1275 }
1276
1277 rtl92e_dm_backup_state(dev);
1278
1279 mutex_unlock(&priv->wx_mutex);
1280 RT_TRACE(COMP_RESET,
1281 "%s():<==========down process is finished\n",
1282 __func__);
1283
1284 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1285 __func__);
1286 reset_status = _rtl92e_up(dev, true);
1287
1288 RT_TRACE(COMP_RESET,
1289 "%s():<===========up process is finished\n", __func__);
1290 if (reset_status == -1) {
1291 if (reset_times < 3) {
1292 reset_times++;
1293 goto RESET_START;
1294 } else {
1295 netdev_warn(dev, "%s(): Reset Failed\n",
1296 __func__);
1297 }
1298 }
1299
1300 ieee->is_silent_reset = 1;
1301
1302 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1303 priv->RFChangeInProgress = false;
1304 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1305
1306 rtl92e_enable_hw_security_config(dev);
1307
1308 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1309 IW_MODE_INFRA) {
1310 ieee->set_chan(ieee->dev,
1311 ieee->current_network.channel);
1312
1313 schedule_work(&ieee->associate_complete_wq);
1314
1315 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1316 IW_MODE_ADHOC) {
1317 ieee->set_chan(ieee->dev,
1318 ieee->current_network.channel);
1319 ieee->link_change(ieee->dev);
1320
1321 notify_wx_assoc_event(ieee);
1322
1323 rtllib_start_send_beacons(ieee);
1324
1325 netif_carrier_on(ieee->dev);
1326 }
1327
1328 rtl92e_cam_restore(dev);
1329 rtl92e_dm_restore_state(dev);
1330 END:
1331 priv->ResetProgress = RESET_TYPE_NORESET;
1332 priv->reset_count++;
1333
1334 priv->bForcedSilentReset = false;
1335 priv->bResetInProgress = false;
1336
1337 rtl92e_writeb(dev, UFWP, 1);
1338 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1339 priv->reset_count);
1340 }
1341 }
1342
_rtl92e_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)1343 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1344 u32 *TotalRxDataNum)
1345 {
1346 u16 SlotIndex;
1347 u8 i;
1348
1349 *TotalRxBcnNum = 0;
1350 *TotalRxDataNum = 0;
1351
1352 SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1353 (priv->rtllib->LinkDetectInfo.SlotNum);
1354 priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1355 priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1356 priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1357 priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1358 for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1359 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1360 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1361 }
1362 }
1363
_rtl92e_watchdog_wq_cb(void * data)1364 static void _rtl92e_watchdog_wq_cb(void *data)
1365 {
1366 struct r8192_priv *priv = container_of_dwork_rsl(data,
1367 struct r8192_priv, watch_dog_wq);
1368 struct net_device *dev = priv->rtllib->dev;
1369 struct rtllib_device *ieee = priv->rtllib;
1370 enum reset_type ResetType = RESET_TYPE_NORESET;
1371 static u8 check_reset_cnt;
1372 unsigned long flags;
1373 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1374 (&priv->rtllib->PowerSaveControl);
1375 bool bBusyTraffic = false;
1376 bool bHigherBusyTraffic = false;
1377 bool bHigherBusyRxTraffic = false;
1378 bool bEnterPS = false;
1379
1380 if (!priv->up || priv->bHwRadioOff)
1381 return;
1382
1383 if (priv->rtllib->state >= RTLLIB_LINKED) {
1384 if (priv->rtllib->CntAfterLink < 2)
1385 priv->rtllib->CntAfterLink++;
1386 } else {
1387 priv->rtllib->CntAfterLink = 0;
1388 }
1389
1390 rtl92e_dm_watchdog(dev);
1391
1392 if (rtllib_act_scanning(priv->rtllib, false) == false) {
1393 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1394 RTLLIB_NOLINK) &&
1395 (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1396 (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1397 if ((ieee->PowerSaveControl.ReturnPoint ==
1398 IPS_CALLBACK_NONE) &&
1399 (!ieee->bNetPromiscuousMode)) {
1400 RT_TRACE(COMP_PS,
1401 "====================>haha: rtl92e_ips_enter()\n");
1402 rtl92e_ips_enter(dev);
1403 }
1404 }
1405 }
1406 if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1407 IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1408 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1409 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1410 bBusyTraffic = true;
1411
1412
1413 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1414 ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1415 bHigherBusyTraffic = true;
1416 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1417 bHigherBusyRxTraffic = true;
1418 else
1419 bHigherBusyRxTraffic = false;
1420 }
1421
1422 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1423 ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1424 (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1425 bEnterPS = false;
1426 else
1427 bEnterPS = true;
1428
1429 if (ieee->current_network.beacon_interval < 95)
1430 bEnterPS = false;
1431
1432 if (bEnterPS)
1433 rtl92e_leisure_ps_enter(dev);
1434 else
1435 rtl92e_leisure_ps_leave(dev);
1436
1437 } else {
1438 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1439 rtl92e_leisure_ps_leave(dev);
1440 }
1441
1442 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1443 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1444 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1445 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1446
1447 ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1448 ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1449
1450 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1451 u32 TotalRxBcnNum = 0;
1452 u32 TotalRxDataNum = 0;
1453
1454 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1455
1456 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1457 priv->check_roaming_cnt++;
1458 else
1459 priv->check_roaming_cnt = 0;
1460
1461
1462 if (priv->check_roaming_cnt > 0) {
1463 if (ieee->eRFPowerState == eRfOff)
1464 netdev_info(dev, "%s(): RF is off\n", __func__);
1465
1466 netdev_info(dev,
1467 "===>%s(): AP is power off, chan:%d, connect another one\n",
1468 __func__, priv->chan);
1469
1470 ieee->state = RTLLIB_ASSOCIATING;
1471
1472 RemovePeerTS(priv->rtllib,
1473 priv->rtllib->current_network.bssid);
1474 ieee->is_roaming = true;
1475 ieee->is_set_key = false;
1476 ieee->link_change(dev);
1477 if (ieee->LedControlHandler)
1478 ieee->LedControlHandler(ieee->dev,
1479 LED_CTL_START_TO_LINK);
1480
1481 notify_wx_assoc_event(ieee);
1482
1483 if (!(ieee->rtllib_ap_sec_type(ieee) &
1484 (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1485 schedule_delayed_work(
1486 &ieee->associate_procedure_wq, 0);
1487
1488 priv->check_roaming_cnt = 0;
1489 }
1490 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1491 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1492
1493 }
1494
1495 spin_lock_irqsave(&priv->tx_lock, flags);
1496 if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1497 (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1498 ResetType = _rtl92e_if_check_reset(dev);
1499 check_reset_cnt = 3;
1500 }
1501 spin_unlock_irqrestore(&priv->tx_lock, flags);
1502
1503 if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1504 priv->ResetProgress = RESET_TYPE_NORMAL;
1505 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1506 return;
1507 }
1508
1509 if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1510 ResetType == RESET_TYPE_SILENT)))
1511 _rtl92e_if_silent_reset(dev);
1512 priv->force_reset = false;
1513 priv->bForcedSilentReset = false;
1514 priv->bResetInProgress = false;
1515 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1516 }
1517
_rtl92e_watchdog_timer_cb(struct timer_list * t)1518 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1519 {
1520 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1521
1522 schedule_delayed_work(&priv->watch_dog_wq, 0);
1523 mod_timer(&priv->watch_dog_timer, jiffies +
1524 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1525 }
1526
1527 /****************************************************************************
1528 * ---------------------------- NIC TX/RX STUFF---------------------------
1529 ****************************************************************************/
rtl92e_rx_enable(struct net_device * dev)1530 void rtl92e_rx_enable(struct net_device *dev)
1531 {
1532 struct r8192_priv *priv = rtllib_priv(dev);
1533
1534 priv->ops->rx_enable(dev);
1535 }
1536
rtl92e_tx_enable(struct net_device * dev)1537 void rtl92e_tx_enable(struct net_device *dev)
1538 {
1539 struct r8192_priv *priv = rtllib_priv(dev);
1540
1541 priv->ops->tx_enable(dev);
1542
1543 rtllib_reset_queue(priv->rtllib);
1544 }
1545
1546
_rtl92e_free_rx_ring(struct net_device * dev)1547 static void _rtl92e_free_rx_ring(struct net_device *dev)
1548 {
1549 struct r8192_priv *priv = rtllib_priv(dev);
1550 int i, rx_queue_idx;
1551
1552 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1553 rx_queue_idx++) {
1554 for (i = 0; i < priv->rxringcount; i++) {
1555 struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1556
1557 if (!skb)
1558 continue;
1559
1560 dma_unmap_single(&priv->pdev->dev,
1561 *((dma_addr_t *)skb->cb),
1562 priv->rxbuffersize, DMA_FROM_DEVICE);
1563 kfree_skb(skb);
1564 }
1565
1566 dma_free_coherent(&priv->pdev->dev,
1567 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1568 priv->rx_ring[rx_queue_idx],
1569 priv->rx_ring_dma[rx_queue_idx]);
1570 priv->rx_ring[rx_queue_idx] = NULL;
1571 }
1572 }
1573
_rtl92e_free_tx_ring(struct net_device * dev,unsigned int prio)1574 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1575 {
1576 struct r8192_priv *priv = rtllib_priv(dev);
1577 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1578
1579 while (skb_queue_len(&ring->queue)) {
1580 struct tx_desc *entry = &ring->desc[ring->idx];
1581 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1582
1583 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1584 skb->len, DMA_TO_DEVICE);
1585 kfree_skb(skb);
1586 ring->idx = (ring->idx + 1) % ring->entries;
1587 }
1588
1589 dma_free_coherent(&priv->pdev->dev,
1590 sizeof(*ring->desc) * ring->entries, ring->desc,
1591 ring->dma);
1592 ring->desc = NULL;
1593 }
1594
_rtl92e_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1595 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1596 int rate)
1597 {
1598 struct r8192_priv *priv = rtllib_priv(dev);
1599 int ret;
1600 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1601 MAX_DEV_ADDR_SIZE);
1602 u8 queue_index = tcb_desc->queue_index;
1603
1604 if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1605 priv->bResetInProgress) {
1606 kfree_skb(skb);
1607 return;
1608 }
1609
1610 if (queue_index == TXCMD_QUEUE)
1611 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1612 __func__);
1613
1614 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1615 skb_push(skb, priv->rtllib->tx_headroom);
1616 ret = _rtl92e_tx(dev, skb);
1617
1618 if (queue_index != MGNT_QUEUE) {
1619 priv->rtllib->stats.tx_bytes += (skb->len -
1620 priv->rtllib->tx_headroom);
1621 priv->rtllib->stats.tx_packets++;
1622 }
1623
1624 if (ret != 0)
1625 kfree_skb(skb);
1626 }
1627
_rtl92e_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1628 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1629 {
1630 struct r8192_priv *priv = rtllib_priv(dev);
1631 int ret;
1632 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1633 MAX_DEV_ADDR_SIZE);
1634 u8 queue_index = tcb_desc->queue_index;
1635
1636 if (queue_index != TXCMD_QUEUE) {
1637 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1638 !priv->up || priv->bResetInProgress) {
1639 kfree_skb(skb);
1640 return 0;
1641 }
1642 }
1643
1644 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1645 if (queue_index == TXCMD_QUEUE) {
1646 _rtl92e_tx_cmd(dev, skb);
1647 return 0;
1648 }
1649
1650 tcb_desc->RATRIndex = 7;
1651 tcb_desc->bTxDisableRateFallBack = 1;
1652 tcb_desc->bTxUseDriverAssingedRate = 1;
1653 tcb_desc->bTxEnableFwCalcDur = 1;
1654 skb_push(skb, priv->rtllib->tx_headroom);
1655 ret = _rtl92e_tx(dev, skb);
1656 if (ret != 0)
1657 kfree_skb(skb);
1658 return ret;
1659 }
1660
_rtl92e_tx_isr(struct net_device * dev,int prio)1661 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1662 {
1663 struct r8192_priv *priv = rtllib_priv(dev);
1664
1665 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1666
1667 while (skb_queue_len(&ring->queue)) {
1668 struct tx_desc *entry = &ring->desc[ring->idx];
1669 struct sk_buff *skb;
1670
1671 if (prio != BEACON_QUEUE) {
1672 if (entry->OWN)
1673 return;
1674 ring->idx = (ring->idx + 1) % ring->entries;
1675 }
1676
1677 skb = __skb_dequeue(&ring->queue);
1678 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1679 skb->len, DMA_TO_DEVICE);
1680
1681 kfree_skb(skb);
1682 }
1683 if (prio != BEACON_QUEUE)
1684 tasklet_schedule(&priv->irq_tx_tasklet);
1685 }
1686
_rtl92e_tx_cmd(struct net_device * dev,struct sk_buff * skb)1687 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1688 {
1689 struct r8192_priv *priv = rtllib_priv(dev);
1690 struct rtl8192_tx_ring *ring;
1691 struct tx_desc_cmd *entry;
1692 unsigned int idx;
1693 struct cb_desc *tcb_desc;
1694 unsigned long flags;
1695
1696 spin_lock_irqsave(&priv->irq_th_lock, flags);
1697 ring = &priv->tx_ring[TXCMD_QUEUE];
1698
1699 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1700 entry = (struct tx_desc_cmd *)&ring->desc[idx];
1701
1702 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1703
1704 priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1705
1706 __skb_queue_tail(&ring->queue, skb);
1707 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1708 }
1709
_rtl92e_tx(struct net_device * dev,struct sk_buff * skb)1710 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1711 {
1712 struct r8192_priv *priv = rtllib_priv(dev);
1713 struct rtl8192_tx_ring *ring;
1714 unsigned long flags;
1715 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1716 MAX_DEV_ADDR_SIZE);
1717 struct tx_desc *pdesc = NULL;
1718 struct rtllib_hdr_1addr *header = NULL;
1719 u16 fc = 0, type = 0;
1720 u8 *pda_addr = NULL;
1721 int idx;
1722 u32 fwinfo_size = 0;
1723
1724 if (priv->bdisable_nic) {
1725 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1726 __func__);
1727 return skb->len;
1728 }
1729
1730 priv->rtllib->bAwakePktSent = true;
1731
1732 fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1733
1734 header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1735 fc = le16_to_cpu(header->frame_ctl);
1736 type = WLAN_FC_GET_TYPE(fc);
1737 pda_addr = header->addr1;
1738
1739 if (is_broadcast_ether_addr(pda_addr))
1740 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1741 else if (is_multicast_ether_addr(pda_addr))
1742 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1743 else
1744 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1745
1746 spin_lock_irqsave(&priv->irq_th_lock, flags);
1747 ring = &priv->tx_ring[tcb_desc->queue_index];
1748 if (tcb_desc->queue_index != BEACON_QUEUE)
1749 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1750 else
1751 idx = 0;
1752
1753 pdesc = &ring->desc[idx];
1754 if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1755 netdev_warn(dev,
1756 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1757 tcb_desc->queue_index, ring->idx, idx, skb->len,
1758 skb_queue_len(&ring->queue));
1759 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1760 return skb->len;
1761 }
1762
1763 if (type == RTLLIB_FTYPE_DATA) {
1764 if (priv->rtllib->LedControlHandler)
1765 priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1766 }
1767 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1768 __skb_queue_tail(&ring->queue, skb);
1769 pdesc->OWN = 1;
1770 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1771 netif_trans_update(dev);
1772
1773 rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1774 return 0;
1775 }
1776
_rtl92e_alloc_rx_ring(struct net_device * dev)1777 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1778 {
1779 struct r8192_priv *priv = rtllib_priv(dev);
1780 struct rx_desc *entry = NULL;
1781 int i, rx_queue_idx;
1782
1783 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1784 priv->rx_ring[rx_queue_idx] = dma_alloc_coherent(&priv->pdev->dev,
1785 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1786 &priv->rx_ring_dma[rx_queue_idx],
1787 GFP_ATOMIC);
1788 if (!priv->rx_ring[rx_queue_idx] ||
1789 (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1790 netdev_warn(dev, "Cannot allocate RX ring\n");
1791 return -ENOMEM;
1792 }
1793
1794 priv->rx_idx[rx_queue_idx] = 0;
1795
1796 for (i = 0; i < priv->rxringcount; i++) {
1797 struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1798 dma_addr_t *mapping;
1799
1800 entry = &priv->rx_ring[rx_queue_idx][i];
1801 if (!skb)
1802 return 0;
1803 skb->dev = dev;
1804 priv->rx_buf[rx_queue_idx][i] = skb;
1805 mapping = (dma_addr_t *)skb->cb;
1806 *mapping = dma_map_single(&priv->pdev->dev,
1807 skb_tail_pointer_rsl(skb),
1808 priv->rxbuffersize, DMA_FROM_DEVICE);
1809 if (dma_mapping_error(&priv->pdev->dev, *mapping)) {
1810 dev_kfree_skb_any(skb);
1811 return -1;
1812 }
1813 entry->BufferAddress = *mapping;
1814
1815 entry->Length = priv->rxbuffersize;
1816 entry->OWN = 1;
1817 }
1818
1819 if (entry)
1820 entry->EOR = 1;
1821 }
1822 return 0;
1823 }
1824
_rtl92e_alloc_tx_ring(struct net_device * dev,unsigned int prio,unsigned int entries)1825 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1826 unsigned int entries)
1827 {
1828 struct r8192_priv *priv = rtllib_priv(dev);
1829 struct tx_desc *ring;
1830 dma_addr_t dma;
1831 int i;
1832
1833 ring = dma_alloc_coherent(&priv->pdev->dev, sizeof(*ring) * entries,
1834 &dma, GFP_ATOMIC);
1835 if (!ring || (unsigned long)ring & 0xFF) {
1836 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1837 return -ENOMEM;
1838 }
1839
1840 priv->tx_ring[prio].desc = ring;
1841 priv->tx_ring[prio].dma = dma;
1842 priv->tx_ring[prio].idx = 0;
1843 priv->tx_ring[prio].entries = entries;
1844 skb_queue_head_init(&priv->tx_ring[prio].queue);
1845
1846 for (i = 0; i < entries; i++)
1847 ring[i].NextDescAddress =
1848 (u32)dma + ((i + 1) % entries) *
1849 sizeof(*ring);
1850
1851 return 0;
1852 }
1853
_rtl92e_pci_initdescring(struct net_device * dev)1854 static short _rtl92e_pci_initdescring(struct net_device *dev)
1855 {
1856 u32 ret;
1857 int i;
1858 struct r8192_priv *priv = rtllib_priv(dev);
1859
1860 ret = _rtl92e_alloc_rx_ring(dev);
1861 if (ret)
1862 return ret;
1863
1864 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1865 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1866 if (ret)
1867 goto err_free_rings;
1868 }
1869
1870 return 0;
1871
1872 err_free_rings:
1873 _rtl92e_free_rx_ring(dev);
1874 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1875 if (priv->tx_ring[i].desc)
1876 _rtl92e_free_tx_ring(dev, i);
1877 return 1;
1878 }
1879
rtl92e_reset_desc_ring(struct net_device * dev)1880 void rtl92e_reset_desc_ring(struct net_device *dev)
1881 {
1882 struct r8192_priv *priv = rtllib_priv(dev);
1883 int i, rx_queue_idx;
1884 unsigned long flags = 0;
1885
1886 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1887 if (priv->rx_ring[rx_queue_idx]) {
1888 struct rx_desc *entry = NULL;
1889
1890 for (i = 0; i < priv->rxringcount; i++) {
1891 entry = &priv->rx_ring[rx_queue_idx][i];
1892 entry->OWN = 1;
1893 }
1894 priv->rx_idx[rx_queue_idx] = 0;
1895 }
1896 }
1897
1898 spin_lock_irqsave(&priv->irq_th_lock, flags);
1899 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1900 if (priv->tx_ring[i].desc) {
1901 struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1902
1903 while (skb_queue_len(&ring->queue)) {
1904 struct tx_desc *entry = &ring->desc[ring->idx];
1905 struct sk_buff *skb =
1906 __skb_dequeue(&ring->queue);
1907
1908 dma_unmap_single(&priv->pdev->dev,
1909 entry->TxBuffAddr, skb->len,
1910 DMA_TO_DEVICE);
1911 kfree_skb(skb);
1912 ring->idx = (ring->idx + 1) % ring->entries;
1913 }
1914 ring->idx = 0;
1915 }
1916 }
1917 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1918 }
1919
rtl92e_update_rx_pkt_timestamp(struct net_device * dev,struct rtllib_rx_stats * stats)1920 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1921 struct rtllib_rx_stats *stats)
1922 {
1923 struct r8192_priv *priv = rtllib_priv(dev);
1924
1925 if (stats->bIsAMPDU && !stats->bFirstMPDU)
1926 stats->mac_time = priv->LastRxDescTSF;
1927 else
1928 priv->LastRxDescTSF = stats->mac_time;
1929 }
1930
rtl92e_translate_to_dbm(struct r8192_priv * priv,u8 signal_strength_index)1931 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1932 {
1933 long signal_power;
1934
1935 signal_power = (long)((signal_strength_index + 1) >> 1);
1936 signal_power -= 95;
1937
1938 return signal_power;
1939 }
1940
1941
rtl92e_update_rx_statistics(struct r8192_priv * priv,struct rtllib_rx_stats * pprevious_stats)1942 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1943 struct rtllib_rx_stats *pprevious_stats)
1944 {
1945 int weighting = 0;
1946
1947
1948 if (priv->stats.recv_signal_power == 0)
1949 priv->stats.recv_signal_power =
1950 pprevious_stats->RecvSignalPower;
1951
1952 if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1953 weighting = 5;
1954 else if (pprevious_stats->RecvSignalPower <
1955 priv->stats.recv_signal_power)
1956 weighting = (-5);
1957 priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1958 pprevious_stats->RecvSignalPower +
1959 weighting) / 6;
1960 }
1961
rtl92e_rx_db_to_percent(s8 antpower)1962 u8 rtl92e_rx_db_to_percent(s8 antpower)
1963 {
1964 if ((antpower <= -100) || (antpower >= 20))
1965 return 0;
1966 else if (antpower >= 0)
1967 return 100;
1968 else
1969 return 100 + antpower;
1970
1971 } /* QueryRxPwrPercentage */
1972
rtl92e_evm_db_to_percent(s8 value)1973 u8 rtl92e_evm_db_to_percent(s8 value)
1974 {
1975 s8 ret_val = clamp(-value, 0, 33) * 3;
1976
1977 if (ret_val == 99)
1978 ret_val = 100;
1979
1980 return ret_val;
1981 }
1982
rtl92e_copy_mpdu_stats(struct rtllib_rx_stats * psrc_stats,struct rtllib_rx_stats * ptarget_stats)1983 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
1984 struct rtllib_rx_stats *ptarget_stats)
1985 {
1986 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
1987 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
1988 }
1989
1990
1991
_rtl92e_rx_normal(struct net_device * dev)1992 static void _rtl92e_rx_normal(struct net_device *dev)
1993 {
1994 struct r8192_priv *priv = rtllib_priv(dev);
1995 struct rtllib_hdr_1addr *rtllib_hdr = NULL;
1996 bool unicast_packet = false;
1997 bool bLedBlinking = true;
1998 u16 fc = 0, type = 0;
1999 u32 skb_len = 0;
2000 int rx_queue_idx = RX_MPDU_QUEUE;
2001
2002 struct rtllib_rx_stats stats = {
2003 .signal = 0,
2004 .noise = (u8)-98,
2005 .rate = 0,
2006 .freq = RTLLIB_24GHZ_BAND,
2007 };
2008 unsigned int count = priv->rxringcount;
2009
2010 stats.nic_type = NIC_8192E;
2011
2012 while (count--) {
2013 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2014 [priv->rx_idx[rx_queue_idx]];
2015 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2016 [priv->rx_idx[rx_queue_idx]];
2017 struct sk_buff *new_skb;
2018
2019 if (pdesc->OWN)
2020 return;
2021 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2022 pdesc, skb))
2023 goto done;
2024 new_skb = dev_alloc_skb(priv->rxbuffersize);
2025 /* if allocation of new skb failed - drop current packet
2026 * and reuse skb
2027 */
2028 if (unlikely(!new_skb))
2029 goto done;
2030
2031 dma_unmap_single(&priv->pdev->dev, *((dma_addr_t *)skb->cb),
2032 priv->rxbuffersize, DMA_FROM_DEVICE);
2033
2034 skb_put(skb, pdesc->Length);
2035 skb_reserve(skb, stats.RxDrvInfoSize +
2036 stats.RxBufShift);
2037 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2038 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2039 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2040 /* unicast packet */
2041 unicast_packet = true;
2042 }
2043 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2044 type = WLAN_FC_GET_TYPE(fc);
2045 if (type == RTLLIB_FTYPE_MGMT)
2046 bLedBlinking = false;
2047
2048 if (bLedBlinking)
2049 if (priv->rtllib->LedControlHandler)
2050 priv->rtllib->LedControlHandler(dev,
2051 LED_CTL_RX);
2052
2053 if (stats.bCRC) {
2054 if (type != RTLLIB_FTYPE_MGMT)
2055 priv->stats.rxdatacrcerr++;
2056 else
2057 priv->stats.rxmgmtcrcerr++;
2058 }
2059
2060 skb_len = skb->len;
2061
2062 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2063 dev_kfree_skb_any(skb);
2064 } else {
2065 priv->stats.rxok++;
2066 if (unicast_packet)
2067 priv->stats.rxbytesunicast += skb_len;
2068 }
2069
2070 skb = new_skb;
2071 skb->dev = dev;
2072
2073 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2074 skb;
2075 *((dma_addr_t *)skb->cb) = dma_map_single(&priv->pdev->dev,
2076 skb_tail_pointer_rsl(skb),
2077 priv->rxbuffersize, DMA_FROM_DEVICE);
2078 if (dma_mapping_error(&priv->pdev->dev, *((dma_addr_t *)skb->cb))) {
2079 dev_kfree_skb_any(skb);
2080 return;
2081 }
2082 done:
2083 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2084 pdesc->OWN = 1;
2085 pdesc->Length = priv->rxbuffersize;
2086 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
2087 pdesc->EOR = 1;
2088 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2089 priv->rxringcount;
2090 }
2091
2092 }
2093
_rtl92e_tx_resume(struct net_device * dev)2094 static void _rtl92e_tx_resume(struct net_device *dev)
2095 {
2096 struct r8192_priv *priv = rtllib_priv(dev);
2097 struct rtllib_device *ieee = priv->rtllib;
2098 struct sk_buff *skb;
2099 int queue_index;
2100
2101 for (queue_index = BK_QUEUE;
2102 queue_index < MAX_QUEUE_SIZE; queue_index++) {
2103 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2104 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2105 skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2106 ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2107 }
2108 }
2109 }
2110
_rtl92e_irq_tx_tasklet(struct tasklet_struct * t)2111 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t)
2112 {
2113 struct r8192_priv *priv = from_tasklet(priv, t, irq_tx_tasklet);
2114
2115 _rtl92e_tx_resume(priv->rtllib->dev);
2116 }
2117
_rtl92e_irq_rx_tasklet(struct tasklet_struct * t)2118 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t)
2119 {
2120 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
2121
2122 _rtl92e_rx_normal(priv->rtllib->dev);
2123
2124 rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2125 rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2126 }
2127
2128 /****************************************************************************
2129 * ---------------------------- NIC START/CLOSE STUFF---------------------------
2130 ****************************************************************************/
_rtl92e_cancel_deferred_work(struct r8192_priv * priv)2131 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2132 {
2133 cancel_delayed_work_sync(&priv->watch_dog_wq);
2134 cancel_delayed_work_sync(&priv->update_beacon_wq);
2135 cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2136 cancel_work_sync(&priv->reset_wq);
2137 cancel_work_sync(&priv->qos_activate);
2138 }
2139
_rtl92e_up(struct net_device * dev,bool is_silent_reset)2140 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2141 {
2142 if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2143 return -1;
2144 return 0;
2145 }
2146
_rtl92e_open(struct net_device * dev)2147 static int _rtl92e_open(struct net_device *dev)
2148 {
2149 struct r8192_priv *priv = rtllib_priv(dev);
2150 int ret;
2151
2152 mutex_lock(&priv->wx_mutex);
2153 ret = _rtl92e_try_up(dev);
2154 mutex_unlock(&priv->wx_mutex);
2155 return ret;
2156
2157 }
2158
_rtl92e_try_up(struct net_device * dev)2159 static int _rtl92e_try_up(struct net_device *dev)
2160 {
2161 struct r8192_priv *priv = rtllib_priv(dev);
2162
2163 if (priv->up == 1)
2164 return -1;
2165 return _rtl92e_up(dev, false);
2166 }
2167
2168
_rtl92e_close(struct net_device * dev)2169 static int _rtl92e_close(struct net_device *dev)
2170 {
2171 struct r8192_priv *priv = rtllib_priv(dev);
2172 int ret;
2173
2174 if ((rtllib_act_scanning(priv->rtllib, false)) &&
2175 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2176 rtllib_stop_scan(priv->rtllib);
2177 }
2178
2179 mutex_lock(&priv->wx_mutex);
2180
2181 ret = _rtl92e_down(dev, true);
2182
2183 mutex_unlock(&priv->wx_mutex);
2184
2185 return ret;
2186
2187 }
2188
_rtl92e_down(struct net_device * dev,bool shutdownrf)2189 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2190 {
2191 if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2192 return -1;
2193
2194 return 0;
2195 }
2196
rtl92e_commit(struct net_device * dev)2197 void rtl92e_commit(struct net_device *dev)
2198 {
2199 struct r8192_priv *priv = rtllib_priv(dev);
2200
2201 if (priv->up == 0)
2202 return;
2203 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2204 rtl92e_irq_disable(dev);
2205 priv->ops->stop_adapter(dev, true);
2206 _rtl92e_up(dev, false);
2207 }
2208
_rtl92e_restart(void * data)2209 static void _rtl92e_restart(void *data)
2210 {
2211 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2212 reset_wq);
2213 struct net_device *dev = priv->rtllib->dev;
2214
2215 mutex_lock(&priv->wx_mutex);
2216
2217 rtl92e_commit(dev);
2218
2219 mutex_unlock(&priv->wx_mutex);
2220 }
2221
_rtl92e_set_multicast(struct net_device * dev)2222 static void _rtl92e_set_multicast(struct net_device *dev)
2223 {
2224 struct r8192_priv *priv = rtllib_priv(dev);
2225 short promisc;
2226
2227 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2228 priv->promisc = promisc;
2229
2230 }
2231
2232
_rtl92e_set_mac_adr(struct net_device * dev,void * mac)2233 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2234 {
2235 struct r8192_priv *priv = rtllib_priv(dev);
2236 struct sockaddr *addr = mac;
2237
2238 mutex_lock(&priv->wx_mutex);
2239
2240 ether_addr_copy(dev->dev_addr, addr->sa_data);
2241
2242 schedule_work(&priv->reset_wq);
2243 mutex_unlock(&priv->wx_mutex);
2244
2245 return 0;
2246 }
2247
_rtl92e_irq(int irq,void * netdev)2248 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2249 {
2250 struct net_device *dev = netdev;
2251 struct r8192_priv *priv = rtllib_priv(dev);
2252 unsigned long flags;
2253 u32 inta;
2254 u32 intb;
2255
2256 intb = 0;
2257
2258 if (priv->irq_enabled == 0)
2259 goto done;
2260
2261 spin_lock_irqsave(&priv->irq_th_lock, flags);
2262
2263 priv->ops->interrupt_recognized(dev, &inta, &intb);
2264 priv->stats.shints++;
2265
2266 if (!inta) {
2267 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2268 goto done;
2269 }
2270
2271 if (inta == 0xffff) {
2272 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2273 goto done;
2274 }
2275
2276 priv->stats.ints++;
2277
2278 if (!netif_running(dev)) {
2279 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2280 goto done;
2281 }
2282
2283 if (inta & IMR_TBDOK) {
2284 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2285 priv->stats.txbeaconokint++;
2286 }
2287
2288 if (inta & IMR_TBDER) {
2289 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2290 priv->stats.txbeaconerr++;
2291 }
2292
2293 if (inta & IMR_BDOK)
2294 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2295
2296 if (inta & IMR_MGNTDOK) {
2297 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2298 priv->stats.txmanageokint++;
2299 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2300 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2301 if (priv->rtllib->ack_tx_to_ieee) {
2302 if (_rtl92e_is_tx_queue_empty(dev)) {
2303 priv->rtllib->ack_tx_to_ieee = 0;
2304 rtllib_ps_tx_ack(priv->rtllib, 1);
2305 }
2306 }
2307 spin_lock_irqsave(&priv->irq_th_lock, flags);
2308 }
2309
2310 if (inta & IMR_COMDOK) {
2311 priv->stats.txcmdpktokint++;
2312 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2313 }
2314
2315 if (inta & IMR_HIGHDOK)
2316 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2317
2318 if (inta & IMR_ROK) {
2319 priv->stats.rxint++;
2320 priv->InterruptLog.nIMR_ROK++;
2321 tasklet_schedule(&priv->irq_rx_tasklet);
2322 }
2323
2324 if (inta & IMR_BcnInt) {
2325 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2326 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2327 }
2328
2329 if (inta & IMR_RDU) {
2330 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2331 priv->stats.rxrdu++;
2332 rtl92e_writel(dev, INTA_MASK,
2333 rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2334 tasklet_schedule(&priv->irq_rx_tasklet);
2335 }
2336
2337 if (inta & IMR_RXFOVW) {
2338 RT_TRACE(COMP_INTR, "rx overflow !\n");
2339 priv->stats.rxoverflow++;
2340 tasklet_schedule(&priv->irq_rx_tasklet);
2341 }
2342
2343 if (inta & IMR_TXFOVW)
2344 priv->stats.txoverflow++;
2345
2346 if (inta & IMR_BKDOK) {
2347 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2348 priv->stats.txbkokint++;
2349 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2350 _rtl92e_tx_isr(dev, BK_QUEUE);
2351 }
2352
2353 if (inta & IMR_BEDOK) {
2354 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2355 priv->stats.txbeokint++;
2356 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2357 _rtl92e_tx_isr(dev, BE_QUEUE);
2358 }
2359
2360 if (inta & IMR_VIDOK) {
2361 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2362 priv->stats.txviokint++;
2363 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2364 _rtl92e_tx_isr(dev, VI_QUEUE);
2365 }
2366
2367 if (inta & IMR_VODOK) {
2368 priv->stats.txvookint++;
2369 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2370 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2371 _rtl92e_tx_isr(dev, VO_QUEUE);
2372 }
2373
2374 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2375
2376 done:
2377
2378 return IRQ_HANDLED;
2379 }
2380
2381
2382
2383 /****************************************************************************
2384 * ---------------------------- PCI_STUFF---------------------------
2385 ****************************************************************************/
2386 static const struct net_device_ops rtl8192_netdev_ops = {
2387 .ndo_open = _rtl92e_open,
2388 .ndo_stop = _rtl92e_close,
2389 .ndo_tx_timeout = _rtl92e_tx_timeout,
2390 .ndo_set_rx_mode = _rtl92e_set_multicast,
2391 .ndo_set_mac_address = _rtl92e_set_mac_adr,
2392 .ndo_validate_addr = eth_validate_addr,
2393 .ndo_start_xmit = rtllib_xmit,
2394 };
2395
_rtl92e_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)2396 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2397 const struct pci_device_id *id)
2398 {
2399 unsigned long ioaddr = 0;
2400 struct net_device *dev = NULL;
2401 struct r8192_priv *priv = NULL;
2402 struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2403 unsigned long pmem_start, pmem_len, pmem_flags;
2404 int err = -ENOMEM;
2405 u8 revision_id;
2406
2407 RT_TRACE(COMP_INIT, "Configuring chip resources");
2408
2409 if (pci_enable_device(pdev)) {
2410 dev_err(&pdev->dev, "Failed to enable PCI device");
2411 return -EIO;
2412 }
2413
2414 pci_set_master(pdev);
2415
2416 if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2417 if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2418 dev_info(&pdev->dev,
2419 "Unable to obtain 32bit DMA for consistent allocations\n");
2420 goto err_pci_disable;
2421 }
2422 }
2423 dev = alloc_rtllib(sizeof(struct r8192_priv));
2424 if (!dev)
2425 goto err_pci_disable;
2426
2427 err = -ENODEV;
2428
2429 pci_set_drvdata(pdev, dev);
2430 SET_NETDEV_DEV(dev, &pdev->dev);
2431 priv = rtllib_priv(dev);
2432 priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2433 priv->pdev = pdev;
2434 priv->rtllib->pdev = pdev;
2435 if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2436 (pdev->subsystem_device == 0x3304))
2437 priv->rtllib->bSupportRemoteWakeUp = 1;
2438 else
2439 priv->rtllib->bSupportRemoteWakeUp = 0;
2440
2441 pmem_start = pci_resource_start(pdev, 1);
2442 pmem_len = pci_resource_len(pdev, 1);
2443 pmem_flags = pci_resource_flags(pdev, 1);
2444
2445 if (!(pmem_flags & IORESOURCE_MEM)) {
2446 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2447 goto err_rel_rtllib;
2448 }
2449
2450 dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2451 pmem_start);
2452 if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2453 netdev_err(dev, "request_mem_region failed!");
2454 goto err_rel_rtllib;
2455 }
2456
2457
2458 ioaddr = (unsigned long)ioremap(pmem_start, pmem_len);
2459 if (ioaddr == (unsigned long)NULL) {
2460 netdev_err(dev, "ioremap failed!");
2461 goto err_rel_mem;
2462 }
2463
2464 dev->mem_start = ioaddr;
2465 dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2466
2467 pci_read_config_byte(pdev, 0x08, &revision_id);
2468 /* If the revisionid is 0x10, the device uses rtl8192se. */
2469 if (pdev->device == 0x8192 && revision_id == 0x10)
2470 goto err_unmap;
2471
2472 priv->ops = ops;
2473
2474 if (rtl92e_check_adapter(pdev, dev) == false)
2475 goto err_unmap;
2476
2477 dev->irq = pdev->irq;
2478 priv->irq = 0;
2479
2480 dev->netdev_ops = &rtl8192_netdev_ops;
2481
2482 dev->wireless_handlers = &r8192_wx_handlers_def;
2483 dev->ethtool_ops = &rtl819x_ethtool_ops;
2484
2485 dev->type = ARPHRD_ETHER;
2486 dev->watchdog_timeo = HZ * 3;
2487
2488 if (dev_alloc_name(dev, ifname) < 0) {
2489 RT_TRACE(COMP_INIT,
2490 "Oops: devname already taken! Trying wlan%%d...\n");
2491 dev_alloc_name(dev, ifname);
2492 }
2493
2494 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2495 if (_rtl92e_init(dev) != 0) {
2496 netdev_warn(dev, "Initialization failed");
2497 goto err_free_irq;
2498 }
2499
2500 netif_carrier_off(dev);
2501 netif_stop_queue(dev);
2502
2503 if (register_netdev(dev))
2504 goto err_free_irq;
2505 RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2506
2507 if (priv->polling_timer_on == 0)
2508 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2509
2510 RT_TRACE(COMP_INIT, "Driver probe completed\n");
2511 return 0;
2512
2513 err_free_irq:
2514 free_irq(dev->irq, dev);
2515 priv->irq = 0;
2516 err_unmap:
2517 iounmap((void __iomem *)ioaddr);
2518 err_rel_mem:
2519 release_mem_region(pmem_start, pmem_len);
2520 err_rel_rtllib:
2521 free_rtllib(dev);
2522 err_pci_disable:
2523 pci_disable_device(pdev);
2524 return err;
2525 }
2526
_rtl92e_pci_disconnect(struct pci_dev * pdev)2527 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2528 {
2529 struct net_device *dev = pci_get_drvdata(pdev);
2530 struct r8192_priv *priv;
2531 u32 i;
2532
2533 if (dev) {
2534 unregister_netdev(dev);
2535
2536 priv = rtllib_priv(dev);
2537
2538 del_timer_sync(&priv->gpio_polling_timer);
2539 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2540 priv->polling_timer_on = 0;
2541 _rtl92e_down(dev, true);
2542 rtl92e_dm_deinit(dev);
2543 vfree(priv->pFirmware);
2544 priv->pFirmware = NULL;
2545 _rtl92e_free_rx_ring(dev);
2546 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2547 _rtl92e_free_tx_ring(dev, i);
2548
2549 if (priv->irq) {
2550 dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2551 free_irq(dev->irq, dev);
2552 priv->irq = 0;
2553 }
2554 free_rtllib(dev);
2555
2556 if (dev->mem_start != 0) {
2557 iounmap((void __iomem *)dev->mem_start);
2558 release_mem_region(pci_resource_start(pdev, 1),
2559 pci_resource_len(pdev, 1));
2560 }
2561 } else {
2562 priv = rtllib_priv(dev);
2563 }
2564
2565 pci_disable_device(pdev);
2566 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2567 }
2568
rtl92e_enable_nic(struct net_device * dev)2569 bool rtl92e_enable_nic(struct net_device *dev)
2570 {
2571 bool init_status = true;
2572 struct r8192_priv *priv = rtllib_priv(dev);
2573 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2574 (&priv->rtllib->PowerSaveControl);
2575
2576 if (!priv->up) {
2577 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2578 priv->bdisable_nic = false;
2579 return false;
2580 }
2581
2582 RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2583 priv->bfirst_init = true;
2584 init_status = priv->ops->initialize_adapter(dev);
2585 if (!init_status) {
2586 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2587 priv->bdisable_nic = false;
2588 return false;
2589 }
2590 RT_TRACE(COMP_INIT, "start adapter finished\n");
2591 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2592 priv->bfirst_init = false;
2593
2594 rtl92e_irq_enable(dev);
2595 priv->bdisable_nic = false;
2596 RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2597 return init_status;
2598 }
2599
rtl92e_disable_nic(struct net_device * dev)2600 bool rtl92e_disable_nic(struct net_device *dev)
2601 {
2602 struct r8192_priv *priv = rtllib_priv(dev);
2603 u8 tmp_state = 0;
2604
2605 RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2606 priv->bdisable_nic = true;
2607 tmp_state = priv->rtllib->state;
2608 rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2609 priv->rtllib->state = tmp_state;
2610 _rtl92e_cancel_deferred_work(priv);
2611 rtl92e_irq_disable(dev);
2612
2613 priv->ops->stop_adapter(dev, false);
2614 RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2615
2616 return true;
2617 }
2618
2619 module_pci_driver(rtl8192_pci_driver);
2620
rtl92e_check_rfctrl_gpio_timer(struct timer_list * t)2621 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2622 {
2623 struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2624
2625 priv->polling_timer_on = 1;
2626
2627 schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2628
2629 mod_timer(&priv->gpio_polling_timer, jiffies +
2630 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2631 }
2632
2633 /***************************************************************************
2634 * ------------------- module init / exit stubs ----------------
2635 ***************************************************************************/
2636 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2637 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2638 MODULE_VERSION(DRV_VERSION);
2639 MODULE_LICENSE("GPL");
2640 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2641 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2642 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2643
2644 module_param(ifname, charp, 0644);
2645 module_param(hwwep, int, 0644);
2646 module_param(channels, int, 0644);
2647
2648 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2649 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2650 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2651