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 struct pci_driver rtl8192_pci_driver = {
67 .name = DRV_NAME, /* Driver name */
68 .id_table = rtl8192_pci_id_tbl, /* PCI_ID table */
69 .probe = _rtl92e_pci_probe, /* probe fn */
70 .remove = _rtl92e_pci_disconnect, /* remove fn */
71 .suspend = rtl92e_suspend, /* PM suspend fn */
72 .resume = rtl92e_resume, /* PM resume fn */
73 };
74
75 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
76 static void _rtl92e_watchdog_wq_cb(void *data);
77 static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
78 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
79 int rate);
80 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
81 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
82 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
83 static short _rtl92e_pci_initdescring(struct net_device *dev);
84 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
85 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
86 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
87 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
88 static int _rtl92e_try_up(struct net_device *dev);
89 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
90 static void _rtl92e_restart(void *data);
91
92 /****************************************************************************
93 * -----------------------------IO STUFF-------------------------
94 ****************************************************************************/
95
rtl92e_readb(struct net_device * dev,int x)96 u8 rtl92e_readb(struct net_device *dev, int x)
97 {
98 return 0xff & readb((u8 __iomem *)dev->mem_start + x);
99 }
100
rtl92e_readl(struct net_device * dev,int x)101 u32 rtl92e_readl(struct net_device *dev, int x)
102 {
103 return readl((u8 __iomem *)dev->mem_start + x);
104 }
105
rtl92e_readw(struct net_device * dev,int x)106 u16 rtl92e_readw(struct net_device *dev, int x)
107 {
108 return readw((u8 __iomem *)dev->mem_start + x);
109 }
110
rtl92e_writeb(struct net_device * dev,int x,u8 y)111 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
112 {
113 writeb(y, (u8 __iomem *)dev->mem_start + x);
114
115 udelay(20);
116 }
117
rtl92e_writel(struct net_device * dev,int x,u32 y)118 void rtl92e_writel(struct net_device *dev, int x, u32 y)
119 {
120 writel(y, (u8 __iomem *)dev->mem_start + x);
121
122 udelay(20);
123 }
124
rtl92e_writew(struct net_device * dev,int x,u16 y)125 void rtl92e_writew(struct net_device *dev, int x, u16 y)
126 {
127 writew(y, (u8 __iomem *)dev->mem_start + x);
128
129 udelay(20);
130 }
131
132 /****************************************************************************
133 * -----------------------------GENERAL FUNCTION-------------------------
134 ****************************************************************************/
rtl92e_set_rf_state(struct net_device * dev,enum rt_rf_power_state StateToSet,RT_RF_CHANGE_SOURCE ChangeSource)135 bool rtl92e_set_rf_state(struct net_device *dev,
136 enum rt_rf_power_state StateToSet,
137 RT_RF_CHANGE_SOURCE ChangeSource)
138 {
139 struct r8192_priv *priv = rtllib_priv(dev);
140 struct rtllib_device *ieee = priv->rtllib;
141 bool bActionAllowed = false;
142 bool bConnectBySSID = false;
143 enum rt_rf_power_state rtState;
144 u16 RFWaitCounter = 0;
145 unsigned long flag;
146
147 RT_TRACE((COMP_PS | COMP_RF),
148 "===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
149
150 while (true) {
151 spin_lock_irqsave(&priv->rf_ps_lock, flag);
152 if (priv->RFChangeInProgress) {
153 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
154 RT_TRACE((COMP_PS | COMP_RF),
155 "rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
156 StateToSet);
157
158 while (priv->RFChangeInProgress) {
159 RFWaitCounter++;
160 RT_TRACE((COMP_PS | COMP_RF),
161 "rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
162 RFWaitCounter);
163 mdelay(1);
164
165 if (RFWaitCounter > 100) {
166 netdev_warn(dev,
167 "%s(): Timeout waiting for RF change.\n",
168 __func__);
169 return false;
170 }
171 }
172 } else {
173 priv->RFChangeInProgress = true;
174 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
175 break;
176 }
177 }
178
179 rtState = priv->rtllib->eRFPowerState;
180
181 switch (StateToSet) {
182 case eRfOn:
183 priv->rtllib->RfOffReason &= (~ChangeSource);
184
185 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
186 priv->bHwRadioOff = false;
187
188 if (!priv->rtllib->RfOffReason) {
189 priv->rtllib->RfOffReason = 0;
190 bActionAllowed = true;
191
192
193 if (rtState == eRfOff &&
194 ChangeSource >= RF_CHANGE_BY_HW)
195 bConnectBySSID = true;
196 } else {
197 RT_TRACE((COMP_PS | COMP_RF),
198 "rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
199 priv->rtllib->RfOffReason, ChangeSource);
200 }
201
202 break;
203
204 case eRfOff:
205
206 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
207 (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
208 if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
209 (ChangeSource > RF_CHANGE_BY_IPS)) {
210 if (ieee->state == RTLLIB_LINKED)
211 priv->blinked_ingpio = true;
212 else
213 priv->blinked_ingpio = false;
214 rtllib_MgntDisconnect(priv->rtllib,
215 WLAN_REASON_DISASSOC_STA_HAS_LEFT);
216 }
217 }
218 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
219 priv->bHwRadioOff = true;
220 priv->rtllib->RfOffReason |= ChangeSource;
221 bActionAllowed = true;
222 break;
223
224 case eRfSleep:
225 priv->rtllib->RfOffReason |= ChangeSource;
226 bActionAllowed = true;
227 break;
228
229 default:
230 break;
231 }
232
233 if (bActionAllowed) {
234 RT_TRACE((COMP_PS | COMP_RF),
235 "rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
236 StateToSet, priv->rtllib->RfOffReason);
237 PHY_SetRFPowerState(dev, StateToSet);
238 if (StateToSet == eRfOn) {
239
240 if (bConnectBySSID && priv->blinked_ingpio) {
241 schedule_delayed_work(
242 &ieee->associate_procedure_wq, 0);
243 priv->blinked_ingpio = false;
244 }
245 }
246 } else {
247 RT_TRACE((COMP_PS | COMP_RF),
248 "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
249 StateToSet, ChangeSource, priv->rtllib->RfOffReason);
250 }
251
252 spin_lock_irqsave(&priv->rf_ps_lock, flag);
253 priv->RFChangeInProgress = false;
254 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
255
256 RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
257 return bActionAllowed;
258 }
259
_rtl92e_check_nic_enough_desc(struct net_device * dev,int prio)260 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
261 {
262 struct r8192_priv *priv = rtllib_priv(dev);
263 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
264
265 if (ring->entries - skb_queue_len(&ring->queue) >= 2)
266 return 1;
267 return 0;
268 }
269
_rtl92e_tx_timeout(struct net_device * dev)270 static void _rtl92e_tx_timeout(struct net_device *dev)
271 {
272 struct r8192_priv *priv = rtllib_priv(dev);
273
274 schedule_work(&priv->reset_wq);
275 netdev_info(dev, "TXTIMEOUT");
276 }
277
rtl92e_irq_enable(struct net_device * dev)278 void rtl92e_irq_enable(struct net_device *dev)
279 {
280 struct r8192_priv *priv = rtllib_priv(dev);
281
282 priv->irq_enabled = 1;
283
284 priv->ops->irq_enable(dev);
285 }
286
rtl92e_irq_disable(struct net_device * dev)287 void rtl92e_irq_disable(struct net_device *dev)
288 {
289 struct r8192_priv *priv = rtllib_priv(dev);
290
291 priv->ops->irq_disable(dev);
292
293 priv->irq_enabled = 0;
294 }
295
_rtl92e_set_chan(struct net_device * dev,short ch)296 static void _rtl92e_set_chan(struct net_device *dev, short ch)
297 {
298 struct r8192_priv *priv = rtllib_priv(dev);
299
300 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
301 if (priv->chan_forced)
302 return;
303
304 priv->chan = ch;
305
306 if (priv->rf_set_chan)
307 priv->rf_set_chan(dev, priv->chan);
308 }
309
_rtl92e_update_cap(struct net_device * dev,u16 cap)310 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
311 {
312 struct r8192_priv *priv = rtllib_priv(dev);
313 struct rtllib_network *net = &priv->rtllib->current_network;
314 bool ShortPreamble;
315
316 if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
317 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
318 ShortPreamble = true;
319 priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
320 RT_TRACE(COMP_DBG,
321 "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
322 __func__);
323 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
324 (unsigned char *)&ShortPreamble);
325 }
326 } else {
327 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
328 ShortPreamble = false;
329 priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
330 RT_TRACE(COMP_DBG,
331 "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
332 __func__);
333 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
334 (unsigned char *)&ShortPreamble);
335 }
336 }
337
338 if (net->mode & (IEEE_G | IEEE_N_24G)) {
339 u8 slot_time_val;
340 u8 CurSlotTime = priv->slot_time;
341
342 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
343 (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
344 if (CurSlotTime != SHORT_SLOT_TIME) {
345 slot_time_val = SHORT_SLOT_TIME;
346 priv->rtllib->SetHwRegHandler(dev,
347 HW_VAR_SLOT_TIME, &slot_time_val);
348 }
349 } else {
350 if (CurSlotTime != NON_SHORT_SLOT_TIME) {
351 slot_time_val = NON_SHORT_SLOT_TIME;
352 priv->rtllib->SetHwRegHandler(dev,
353 HW_VAR_SLOT_TIME, &slot_time_val);
354 }
355 }
356 }
357 }
358
359 static const struct rtllib_qos_parameters def_qos_parameters = {
360 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
361 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
362 {2, 2, 2, 2},
363 {0, 0, 0, 0},
364 {0, 0, 0, 0}
365 };
366
_rtl92e_update_beacon(void * data)367 static void _rtl92e_update_beacon(void *data)
368 {
369 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
370 update_beacon_wq.work);
371 struct net_device *dev = priv->rtllib->dev;
372 struct rtllib_device *ieee = priv->rtllib;
373 struct rtllib_network *net = &ieee->current_network;
374
375 if (ieee->pHTInfo->bCurrentHTSupport)
376 HT_update_self_and_peer_setting(ieee, net);
377 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
378 net->bssht.bdRT2RTLongSlotTime;
379 ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
380 _rtl92e_update_cap(dev, net->capability);
381 }
382
_rtl92e_qos_activate(void * data)383 static void _rtl92e_qos_activate(void *data)
384 {
385 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
386 qos_activate);
387 struct net_device *dev = priv->rtllib->dev;
388 int i;
389
390 mutex_lock(&priv->mutex);
391 if (priv->rtllib->state != RTLLIB_LINKED)
392 goto success;
393 RT_TRACE(COMP_QOS,
394 "qos active process with associate response received\n");
395
396 for (i = 0; i < QOS_QUEUE_NUM; i++)
397 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
398
399
400 success:
401 mutex_unlock(&priv->mutex);
402 }
403
_rtl92e_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct rtllib_network * network)404 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
405 int active_network,
406 struct rtllib_network *network)
407 {
408 int ret = 0;
409 u32 size = sizeof(struct rtllib_qos_parameters);
410
411 if (priv->rtllib->state != RTLLIB_LINKED)
412 return ret;
413
414 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
415 return ret;
416
417 if (network->flags & NETWORK_HAS_QOS_MASK) {
418 if (active_network &&
419 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
420 network->qos_data.active = network->qos_data.supported;
421
422 if ((network->qos_data.active == 1) && (active_network == 1) &&
423 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
424 (network->qos_data.old_param_count !=
425 network->qos_data.param_count)) {
426 network->qos_data.old_param_count =
427 network->qos_data.param_count;
428 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
429 schedule_work(&priv->qos_activate);
430 RT_TRACE(COMP_QOS,
431 "QoS parameters change call qos_activate\n");
432 }
433 } else {
434 memcpy(&priv->rtllib->current_network.qos_data.parameters,
435 &def_qos_parameters, size);
436
437 if ((network->qos_data.active == 1) && (active_network == 1)) {
438 schedule_work(&priv->qos_activate);
439 RT_TRACE(COMP_QOS,
440 "QoS was disabled call qos_activate\n");
441 }
442 network->qos_data.active = 0;
443 network->qos_data.supported = 0;
444 }
445
446 return 0;
447 }
448
_rtl92e_handle_beacon(struct net_device * dev,struct rtllib_beacon * beacon,struct rtllib_network * network)449 static int _rtl92e_handle_beacon(struct net_device *dev,
450 struct rtllib_beacon *beacon,
451 struct rtllib_network *network)
452 {
453 struct r8192_priv *priv = rtllib_priv(dev);
454
455 _rtl92e_qos_handle_probe_response(priv, 1, network);
456
457 schedule_delayed_work(&priv->update_beacon_wq, 0);
458 return 0;
459
460 }
461
_rtl92e_qos_assoc_resp(struct r8192_priv * priv,struct rtllib_network * network)462 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
463 struct rtllib_network *network)
464 {
465 unsigned long flags;
466 u32 size = sizeof(struct rtllib_qos_parameters);
467 int set_qos_param = 0;
468
469 if (!priv || !network)
470 return 0;
471
472 if (priv->rtllib->state != RTLLIB_LINKED)
473 return 0;
474
475 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
476 return 0;
477
478 spin_lock_irqsave(&priv->rtllib->lock, flags);
479 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
480 memcpy(&priv->rtllib->current_network.qos_data.parameters,
481 &network->qos_data.parameters,
482 sizeof(struct rtllib_qos_parameters));
483 priv->rtllib->current_network.qos_data.active = 1;
484 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
485 set_qos_param = 1;
486 priv->rtllib->current_network.qos_data.old_param_count =
487 priv->rtllib->current_network.qos_data.param_count;
488 priv->rtllib->current_network.qos_data.param_count =
489 network->qos_data.param_count;
490 } else {
491 memcpy(&priv->rtllib->current_network.qos_data.parameters,
492 &def_qos_parameters, size);
493 priv->rtllib->current_network.qos_data.active = 0;
494 priv->rtllib->current_network.qos_data.supported = 0;
495 set_qos_param = 1;
496 }
497
498 spin_unlock_irqrestore(&priv->rtllib->lock, flags);
499
500 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
501 network->flags, priv->rtllib->current_network.qos_data.active);
502 if (set_qos_param == 1) {
503 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
504 schedule_work(&priv->qos_activate);
505 }
506 return 0;
507 }
508
_rtl92e_handle_assoc_response(struct net_device * dev,struct rtllib_assoc_response_frame * resp,struct rtllib_network * network)509 static int _rtl92e_handle_assoc_response(struct net_device *dev,
510 struct rtllib_assoc_response_frame *resp,
511 struct rtllib_network *network)
512 {
513 struct r8192_priv *priv = rtllib_priv(dev);
514
515 _rtl92e_qos_assoc_resp(priv, network);
516 return 0;
517 }
518
_rtl92e_prepare_beacon(struct r8192_priv * priv)519 static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
520 {
521 struct net_device *dev = priv->rtllib->dev;
522 struct sk_buff *pskb = NULL, *pnewskb = NULL;
523 struct cb_desc *tcb_desc = NULL;
524 struct rtl8192_tx_ring *ring = NULL;
525 struct tx_desc *pdesc = NULL;
526
527 ring = &priv->tx_ring[BEACON_QUEUE];
528 pskb = __skb_dequeue(&ring->queue);
529 kfree_skb(pskb);
530
531 pnewskb = rtllib_get_beacon(priv->rtllib);
532 if (!pnewskb)
533 return;
534
535 tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
536 tcb_desc->queue_index = BEACON_QUEUE;
537 tcb_desc->data_rate = 2;
538 tcb_desc->RATRIndex = 7;
539 tcb_desc->bTxDisableRateFallBack = 1;
540 tcb_desc->bTxUseDriverAssingedRate = 1;
541 skb_push(pnewskb, priv->rtllib->tx_headroom);
542
543 pdesc = &ring->desc[0];
544 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
545 __skb_queue_tail(&ring->queue, pnewskb);
546 pdesc->OWN = 1;
547 }
548
_rtl92e_stop_beacon(struct net_device * dev)549 static void _rtl92e_stop_beacon(struct net_device *dev)
550 {
551 }
552
rtl92e_config_rate(struct net_device * dev,u16 * rate_config)553 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
554 {
555 struct r8192_priv *priv = rtllib_priv(dev);
556 struct rtllib_network *net;
557 u8 i = 0, basic_rate = 0;
558
559 net = &priv->rtllib->current_network;
560
561 for (i = 0; i < net->rates_len; i++) {
562 basic_rate = net->rates[i] & 0x7f;
563 switch (basic_rate) {
564 case MGN_1M:
565 *rate_config |= RRSR_1M;
566 break;
567 case MGN_2M:
568 *rate_config |= RRSR_2M;
569 break;
570 case MGN_5_5M:
571 *rate_config |= RRSR_5_5M;
572 break;
573 case MGN_11M:
574 *rate_config |= RRSR_11M;
575 break;
576 case MGN_6M:
577 *rate_config |= RRSR_6M;
578 break;
579 case MGN_9M:
580 *rate_config |= RRSR_9M;
581 break;
582 case MGN_12M:
583 *rate_config |= RRSR_12M;
584 break;
585 case MGN_18M:
586 *rate_config |= RRSR_18M;
587 break;
588 case MGN_24M:
589 *rate_config |= RRSR_24M;
590 break;
591 case MGN_36M:
592 *rate_config |= RRSR_36M;
593 break;
594 case MGN_48M:
595 *rate_config |= RRSR_48M;
596 break;
597 case MGN_54M:
598 *rate_config |= RRSR_54M;
599 break;
600 }
601 }
602
603 for (i = 0; i < net->rates_ex_len; i++) {
604 basic_rate = net->rates_ex[i] & 0x7f;
605 switch (basic_rate) {
606 case MGN_1M:
607 *rate_config |= RRSR_1M;
608 break;
609 case MGN_2M:
610 *rate_config |= RRSR_2M;
611 break;
612 case MGN_5_5M:
613 *rate_config |= RRSR_5_5M;
614 break;
615 case MGN_11M:
616 *rate_config |= RRSR_11M;
617 break;
618 case MGN_6M:
619 *rate_config |= RRSR_6M;
620 break;
621 case MGN_9M:
622 *rate_config |= RRSR_9M;
623 break;
624 case MGN_12M:
625 *rate_config |= RRSR_12M;
626 break;
627 case MGN_18M:
628 *rate_config |= RRSR_18M;
629 break;
630 case MGN_24M:
631 *rate_config |= RRSR_24M;
632 break;
633 case MGN_36M:
634 *rate_config |= RRSR_36M;
635 break;
636 case MGN_48M:
637 *rate_config |= RRSR_48M;
638 break;
639 case MGN_54M:
640 *rate_config |= RRSR_54M;
641 break;
642 }
643 }
644 }
645
_rtl92e_refresh_support_rate(struct r8192_priv * priv)646 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
647 {
648 struct rtllib_device *ieee = priv->rtllib;
649
650 if (ieee->mode == WIRELESS_MODE_N_24G ||
651 ieee->mode == WIRELESS_MODE_N_5G) {
652 memcpy(ieee->Regdot11HTOperationalRateSet,
653 ieee->RegHTSuppRateSet, 16);
654 memcpy(ieee->Regdot11TxHTOperationalRateSet,
655 ieee->RegHTSuppRateSet, 16);
656
657 } else {
658 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
659 }
660 }
661
_rtl92e_get_supported_wireless_mode(struct net_device * dev)662 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
663 {
664 struct r8192_priv *priv = rtllib_priv(dev);
665 u8 ret = 0;
666
667 switch (priv->rf_chip) {
668 case RF_8225:
669 case RF_8256:
670 case RF_6052:
671 case RF_PSEUDO_11N:
672 ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
673 break;
674 case RF_8258:
675 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
676 break;
677 default:
678 ret = WIRELESS_MODE_B;
679 break;
680 }
681 return ret;
682 }
683
rtl92e_set_wireless_mode(struct net_device * dev,u8 wireless_mode)684 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
685 {
686 struct r8192_priv *priv = rtllib_priv(dev);
687 u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
688
689 if ((wireless_mode == WIRELESS_MODE_AUTO) ||
690 ((wireless_mode & bSupportMode) == 0)) {
691 if (bSupportMode & WIRELESS_MODE_N_24G) {
692 wireless_mode = WIRELESS_MODE_N_24G;
693 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
694 wireless_mode = WIRELESS_MODE_N_5G;
695 } else if ((bSupportMode & WIRELESS_MODE_A)) {
696 wireless_mode = WIRELESS_MODE_A;
697 } else if ((bSupportMode & WIRELESS_MODE_G)) {
698 wireless_mode = WIRELESS_MODE_G;
699 } else if ((bSupportMode & WIRELESS_MODE_B)) {
700 wireless_mode = WIRELESS_MODE_B;
701 } else {
702 netdev_info(dev,
703 "%s(): Unsupported mode requested. Fallback to 802.11b\n",
704 __func__);
705 wireless_mode = WIRELESS_MODE_B;
706 }
707 }
708
709 if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
710 (WIRELESS_MODE_G | WIRELESS_MODE_B))
711 wireless_mode = WIRELESS_MODE_G;
712
713 priv->rtllib->mode = wireless_mode;
714
715 if ((wireless_mode == WIRELESS_MODE_N_24G) ||
716 (wireless_mode == WIRELESS_MODE_N_5G)) {
717 priv->rtllib->pHTInfo->bEnableHT = 1;
718 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
719 __func__, wireless_mode);
720 } else {
721 priv->rtllib->pHTInfo->bEnableHT = 0;
722 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
723 __func__, wireless_mode);
724 }
725
726 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
727 _rtl92e_refresh_support_rate(priv);
728 }
729
_rtl92e_sta_up(struct net_device * dev,bool is_silent_reset)730 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
731 {
732 struct r8192_priv *priv = rtllib_priv(dev);
733 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
734 (&priv->rtllib->PowerSaveControl);
735 bool init_status = true;
736
737 priv->bDriverIsGoingToUnload = false;
738 priv->bdisable_nic = false;
739
740 priv->up = 1;
741 priv->rtllib->ieee_up = 1;
742
743 priv->up_first_time = 0;
744 RT_TRACE(COMP_INIT, "Bringing up iface");
745 priv->bfirst_init = true;
746 init_status = priv->ops->initialize_adapter(dev);
747 if (!init_status) {
748 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
749 priv->bfirst_init = false;
750 return -1;
751 }
752
753 RT_TRACE(COMP_INIT, "start adapter finished\n");
754 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
755 priv->bfirst_init = false;
756
757 if (priv->polling_timer_on == 0)
758 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
759
760 if (priv->rtllib->state != RTLLIB_LINKED)
761 rtllib_softmac_start_protocol(priv->rtllib, 0);
762 rtllib_reset_queue(priv->rtllib);
763 _rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
764
765 if (!netif_queue_stopped(dev))
766 netif_start_queue(dev);
767 else
768 netif_wake_queue(dev);
769
770 return 0;
771 }
772
_rtl92e_sta_down(struct net_device * dev,bool shutdownrf)773 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
774 {
775 struct r8192_priv *priv = rtllib_priv(dev);
776 unsigned long flags = 0;
777 u8 RFInProgressTimeOut = 0;
778
779 if (priv->up == 0)
780 return -1;
781
782 if (priv->rtllib->rtllib_ips_leave)
783 priv->rtllib->rtllib_ips_leave(dev);
784
785 if (priv->rtllib->state == RTLLIB_LINKED)
786 rtl92e_leisure_ps_leave(dev);
787
788 priv->bDriverIsGoingToUnload = true;
789 priv->up = 0;
790 priv->rtllib->ieee_up = 0;
791 priv->bfirst_after_down = true;
792 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
793 if (!netif_queue_stopped(dev))
794 netif_stop_queue(dev);
795
796 priv->rtllib->wpa_ie_len = 0;
797 kfree(priv->rtllib->wpa_ie);
798 priv->rtllib->wpa_ie = NULL;
799 rtl92e_cam_reset(dev);
800 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
801 rtl92e_irq_disable(dev);
802
803 del_timer_sync(&priv->watch_dog_timer);
804 _rtl92e_cancel_deferred_work(priv);
805 cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
806
807 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
808 spin_lock_irqsave(&priv->rf_ps_lock, flags);
809 while (priv->RFChangeInProgress) {
810 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
811 if (RFInProgressTimeOut > 100) {
812 spin_lock_irqsave(&priv->rf_ps_lock, flags);
813 break;
814 }
815 RT_TRACE(COMP_DBG,
816 "===>%s():RF is in progress, need to wait until rf change is done.\n",
817 __func__);
818 mdelay(1);
819 RFInProgressTimeOut++;
820 spin_lock_irqsave(&priv->rf_ps_lock, flags);
821 }
822 priv->RFChangeInProgress = true;
823 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
824 priv->ops->stop_adapter(dev, false);
825 spin_lock_irqsave(&priv->rf_ps_lock, flags);
826 priv->RFChangeInProgress = false;
827 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
828 udelay(100);
829 memset(&priv->rtllib->current_network, 0,
830 offsetof(struct rtllib_network, list));
831 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
832
833 return 0;
834 }
835
_rtl92e_init_priv_handler(struct net_device * dev)836 static void _rtl92e_init_priv_handler(struct net_device *dev)
837 {
838 struct r8192_priv *priv = rtllib_priv(dev);
839
840 priv->rtllib->softmac_hard_start_xmit = _rtl92e_hard_start_xmit;
841 priv->rtllib->set_chan = _rtl92e_set_chan;
842 priv->rtllib->link_change = priv->ops->link_change;
843 priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
844 priv->rtllib->check_nic_enough_desc = _rtl92e_check_nic_enough_desc;
845 priv->rtllib->handle_assoc_response = _rtl92e_handle_assoc_response;
846 priv->rtllib->handle_beacon = _rtl92e_handle_beacon;
847 priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
848 priv->rtllib->LeisurePSLeave = rtl92e_leisure_ps_leave;
849 priv->rtllib->SetBWModeHandler = rtl92e_set_bw_mode;
850 priv->rf_set_chan = rtl92e_set_channel;
851
852 priv->rtllib->start_send_beacons = rtl92e_start_beacon;
853 priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
854
855 priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
856 priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
857 priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
858
859 priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
860 priv->rtllib->GetHalfNmodeSupportByAPsHandler =
861 rtl92e_is_halfn_supported_by_ap;
862
863 priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
864 priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
865 priv->rtllib->SetFwCmdHandler = NULL;
866 priv->rtllib->InitialGainHandler = rtl92e_init_gain;
867 priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
868 priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
869
870 priv->rtllib->LedControlHandler = NULL;
871 priv->rtllib->UpdateBeaconInterruptHandler = NULL;
872
873 priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
874 }
875
_rtl92e_init_priv_constant(struct net_device * dev)876 static void _rtl92e_init_priv_constant(struct net_device *dev)
877 {
878 struct r8192_priv *priv = rtllib_priv(dev);
879 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
880 &priv->rtllib->PowerSaveControl;
881
882 pPSC->RegMaxLPSAwakeIntvl = 5;
883 }
884
885
_rtl92e_init_priv_variable(struct net_device * dev)886 static void _rtl92e_init_priv_variable(struct net_device *dev)
887 {
888 struct r8192_priv *priv = rtllib_priv(dev);
889 u8 i;
890
891 priv->AcmMethod = eAcmWay2_SW;
892 priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
893 priv->rtllib->status = 0;
894 priv->polling_timer_on = 0;
895 priv->up_first_time = 1;
896 priv->blinked_ingpio = false;
897 priv->bDriverIsGoingToUnload = false;
898 priv->being_init_adapter = false;
899 priv->initialized_at_probe = false;
900 priv->bdisable_nic = false;
901 priv->bfirst_init = false;
902 priv->txringcount = 64;
903 priv->rxbuffersize = 9100;
904 priv->rxringcount = MAX_RX_COUNT;
905 priv->irq_enabled = 0;
906 priv->chan = 1;
907 priv->RegChannelPlan = 0xf;
908 priv->rtllib->mode = WIRELESS_MODE_AUTO;
909 priv->rtllib->iw_mode = IW_MODE_INFRA;
910 priv->rtllib->bNetPromiscuousMode = false;
911 priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
912 priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
913 false;
914 priv->rtllib->ieee_up = 0;
915 priv->retry_rts = DEFAULT_RETRY_RTS;
916 priv->retry_data = DEFAULT_RETRY_DATA;
917 priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
918 priv->rtllib->rate = 110;
919 priv->rtllib->short_slot = 1;
920 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
921 priv->bcck_in_ch14 = false;
922 priv->bfsync_processing = false;
923 priv->CCKPresentAttentuation = 0;
924 priv->rfa_txpowertrackingindex = 0;
925 priv->rfc_txpowertrackingindex = 0;
926 priv->CckPwEnl = 6;
927 priv->ScanDelay = 50;
928 priv->ResetProgress = RESET_TYPE_NORESET;
929 priv->bForcedSilentReset = false;
930 priv->bDisableNormalResetCheck = false;
931 priv->force_reset = false;
932 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
933
934 memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
935 priv->RxCounter = 0;
936 priv->rtllib->wx_set_enc = 0;
937 priv->bHwRadioOff = false;
938 priv->RegRfOff = false;
939 priv->isRFOff = false;
940 priv->bInPowerSaveMode = false;
941 priv->rtllib->RfOffReason = 0;
942 priv->RFChangeInProgress = false;
943 priv->bHwRfOffAction = 0;
944 priv->SetRFPowerStateInProgress = false;
945 priv->rtllib->PowerSaveControl.bInactivePs = true;
946 priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
947 priv->rtllib->PowerSaveControl.bLeisurePs = true;
948 priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
949 priv->rtllib->LPSDelayCnt = 0;
950 priv->rtllib->sta_sleep = LPS_IS_WAKE;
951 priv->rtllib->eRFPowerState = eRfOn;
952
953 priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
954 priv->rtllib->iw_mode = IW_MODE_INFRA;
955 priv->rtllib->active_scan = 1;
956 priv->rtllib->be_scan_inprogress = false;
957 priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
958 RTLLIB_OFDM_MODULATION;
959 priv->rtllib->host_encrypt = 1;
960 priv->rtllib->host_decrypt = 1;
961
962 priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
963
964 priv->card_type = PCI;
965
966 priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
967 if (!priv->pFirmware)
968 netdev_err(dev,
969 "rtl8192e: Unable to allocate space for firmware\n");
970
971 skb_queue_head_init(&priv->skb_queue);
972
973 for (i = 0; i < MAX_QUEUE_SIZE; i++)
974 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
975 for (i = 0; i < MAX_QUEUE_SIZE; i++)
976 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
977 }
978
_rtl92e_init_priv_lock(struct r8192_priv * priv)979 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
980 {
981 spin_lock_init(&priv->tx_lock);
982 spin_lock_init(&priv->irq_th_lock);
983 spin_lock_init(&priv->rf_ps_lock);
984 spin_lock_init(&priv->ps_lock);
985 mutex_init(&priv->wx_mutex);
986 mutex_init(&priv->rf_mutex);
987 mutex_init(&priv->mutex);
988 }
989
_rtl92e_init_priv_task(struct net_device * dev)990 static void _rtl92e_init_priv_task(struct net_device *dev)
991 {
992 struct r8192_priv *priv = rtllib_priv(dev);
993
994 INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
995 INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
996 dev);
997 INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
998 (void *)_rtl92e_watchdog_wq_cb, dev);
999 INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1000 (void *)rtl92e_dm_txpower_tracking_wq, dev);
1001 INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1002 (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1003 INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1004 (void *)_rtl92e_update_beacon, dev);
1005 INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1006 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1007 (void *)rtl92e_hw_wakeup_wq, dev);
1008 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1009 (void *)rtl92e_hw_sleep_wq, dev);
1010 tasklet_init(&priv->irq_rx_tasklet,
1011 (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1012 (unsigned long)priv);
1013 tasklet_init(&priv->irq_tx_tasklet,
1014 (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1015 (unsigned long)priv);
1016 tasklet_init(&priv->irq_prepare_beacon_tasklet,
1017 (void(*)(unsigned long))_rtl92e_prepare_beacon,
1018 (unsigned long)priv);
1019 }
1020
_rtl92e_get_channel_map(struct net_device * dev)1021 static short _rtl92e_get_channel_map(struct net_device *dev)
1022 {
1023 int i;
1024
1025 struct r8192_priv *priv = rtllib_priv(dev);
1026
1027 if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
1028 (priv->rf_chip != RF_6052)) {
1029 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1030 __func__);
1031 return -1;
1032 }
1033
1034 if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1035 netdev_info(dev,
1036 "rtl819x_init:Error channel plan! Set to default.\n");
1037 priv->ChannelPlan = COUNTRY_CODE_FCC;
1038 }
1039 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1040 dot11d_init(priv->rtllib);
1041 dot11d_channel_map(priv->ChannelPlan, priv->rtllib);
1042 for (i = 1; i <= 11; i++)
1043 (priv->rtllib->active_channel_map)[i] = 1;
1044 (priv->rtllib->active_channel_map)[12] = 2;
1045 (priv->rtllib->active_channel_map)[13] = 2;
1046
1047 return 0;
1048 }
1049
_rtl92e_init(struct net_device * dev)1050 static short _rtl92e_init(struct net_device *dev)
1051 {
1052 struct r8192_priv *priv = rtllib_priv(dev);
1053
1054 memset(&priv->stats, 0, sizeof(struct rt_stats));
1055
1056 _rtl92e_init_priv_handler(dev);
1057 _rtl92e_init_priv_constant(dev);
1058 _rtl92e_init_priv_variable(dev);
1059 _rtl92e_init_priv_lock(priv);
1060 _rtl92e_init_priv_task(dev);
1061 priv->ops->get_eeprom_size(dev);
1062 priv->ops->init_adapter_variable(dev);
1063 _rtl92e_get_channel_map(dev);
1064
1065 rtl92e_dm_init(dev);
1066
1067 timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
1068
1069 timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
1070 0);
1071
1072 rtl92e_irq_disable(dev);
1073 if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1074 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1075 return -1;
1076 }
1077
1078 priv->irq = dev->irq;
1079 RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1080
1081 if (_rtl92e_pci_initdescring(dev) != 0) {
1082 netdev_err(dev, "Endopoints initialization failed");
1083 free_irq(dev->irq, dev);
1084 return -1;
1085 }
1086
1087 return 0;
1088 }
1089
1090 /***************************************************************************
1091 * -------------------------------WATCHDOG STUFF---------------------------
1092 **************************************************************************/
_rtl92e_is_tx_queue_empty(struct net_device * dev)1093 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1094 {
1095 int i = 0;
1096 struct r8192_priv *priv = rtllib_priv(dev);
1097
1098 for (i = 0; i <= MGNT_QUEUE; i++) {
1099 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1100 continue;
1101 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1102 netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1103 i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1104 return 0;
1105 }
1106 }
1107 return 1;
1108 }
1109
_rtl92e_tx_check_stuck(struct net_device * dev)1110 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1111 {
1112 struct r8192_priv *priv = rtllib_priv(dev);
1113 u8 QueueID;
1114 bool bCheckFwTxCnt = false;
1115 struct rtl8192_tx_ring *ring = NULL;
1116 struct sk_buff *skb = NULL;
1117 struct cb_desc *tcb_desc = NULL;
1118 unsigned long flags = 0;
1119
1120 switch (priv->rtllib->ps) {
1121 case RTLLIB_PS_DISABLED:
1122 break;
1123 case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1124 break;
1125 default:
1126 break;
1127 }
1128 spin_lock_irqsave(&priv->irq_th_lock, flags);
1129 for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1130 if (QueueID == TXCMD_QUEUE)
1131 continue;
1132
1133 if (QueueID == BEACON_QUEUE)
1134 continue;
1135
1136 ring = &priv->tx_ring[QueueID];
1137
1138 if (skb_queue_len(&ring->queue) == 0) {
1139 continue;
1140 } else {
1141 skb = __skb_peek(&ring->queue);
1142 tcb_desc = (struct cb_desc *)(skb->cb +
1143 MAX_DEV_ADDR_SIZE);
1144 tcb_desc->nStuckCount++;
1145 bCheckFwTxCnt = true;
1146 if (tcb_desc->nStuckCount > 1)
1147 netdev_info(dev,
1148 "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1149 __func__, QueueID,
1150 tcb_desc->nStuckCount);
1151 }
1152 }
1153 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1154
1155 if (bCheckFwTxCnt) {
1156 if (priv->ops->TxCheckStuckHandler(dev)) {
1157 RT_TRACE(COMP_RESET,
1158 "TxCheckStuck(): Fw indicates no Tx condition!\n");
1159 return RESET_TYPE_SILENT;
1160 }
1161 }
1162
1163 return RESET_TYPE_NORESET;
1164 }
1165
_rtl92e_rx_check_stuck(struct net_device * dev)1166 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1167 {
1168 struct r8192_priv *priv = rtllib_priv(dev);
1169
1170 if (priv->ops->RxCheckStuckHandler(dev)) {
1171 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1172 return RESET_TYPE_SILENT;
1173 }
1174
1175 return RESET_TYPE_NORESET;
1176 }
1177
_rtl92e_if_check_reset(struct net_device * dev)1178 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1179 {
1180 struct r8192_priv *priv = rtllib_priv(dev);
1181 enum reset_type TxResetType = RESET_TYPE_NORESET;
1182 enum reset_type RxResetType = RESET_TYPE_NORESET;
1183 enum rt_rf_power_state rfState;
1184
1185 rfState = priv->rtllib->eRFPowerState;
1186
1187 if (rfState == eRfOn)
1188 TxResetType = _rtl92e_tx_check_stuck(dev);
1189
1190 if (rfState == eRfOn &&
1191 (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1192 (priv->rtllib->state == RTLLIB_LINKED))
1193 RxResetType = _rtl92e_rx_check_stuck(dev);
1194
1195 if (TxResetType == RESET_TYPE_NORMAL ||
1196 RxResetType == RESET_TYPE_NORMAL) {
1197 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1198 __func__, TxResetType, RxResetType);
1199 return RESET_TYPE_NORMAL;
1200 } else if (TxResetType == RESET_TYPE_SILENT ||
1201 RxResetType == RESET_TYPE_SILENT) {
1202 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1203 __func__, TxResetType, RxResetType);
1204 return RESET_TYPE_SILENT;
1205 } else {
1206 return RESET_TYPE_NORESET;
1207 }
1208
1209 }
1210
_rtl92e_if_silent_reset(struct net_device * dev)1211 static void _rtl92e_if_silent_reset(struct net_device *dev)
1212 {
1213 struct r8192_priv *priv = rtllib_priv(dev);
1214 u8 reset_times = 0;
1215 int reset_status = 0;
1216 struct rtllib_device *ieee = priv->rtllib;
1217 unsigned long flag;
1218
1219 if (priv->ResetProgress == RESET_TYPE_NORESET) {
1220
1221 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1222
1223 priv->ResetProgress = RESET_TYPE_SILENT;
1224
1225 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1226 if (priv->RFChangeInProgress) {
1227 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1228 goto END;
1229 }
1230 priv->RFChangeInProgress = true;
1231 priv->bResetInProgress = true;
1232 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1233
1234 RESET_START:
1235
1236 mutex_lock(&priv->wx_mutex);
1237
1238 if (priv->rtllib->state == RTLLIB_LINKED)
1239 rtl92e_leisure_ps_leave(dev);
1240
1241 if (priv->up) {
1242 netdev_info(dev, "%s():the driver is not up.\n",
1243 __func__);
1244 mutex_unlock(&priv->wx_mutex);
1245 return;
1246 }
1247 priv->up = 0;
1248
1249 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1250 __func__);
1251 mdelay(1000);
1252 RT_TRACE(COMP_RESET,
1253 "%s():111111111111111111111111======>start to down the driver\n",
1254 __func__);
1255
1256 if (!netif_queue_stopped(dev))
1257 netif_stop_queue(dev);
1258
1259 rtl92e_irq_disable(dev);
1260 del_timer_sync(&priv->watch_dog_timer);
1261 _rtl92e_cancel_deferred_work(priv);
1262 rtl92e_dm_deinit(dev);
1263 rtllib_stop_scan_syncro(ieee);
1264
1265 if (ieee->state == RTLLIB_LINKED) {
1266 mutex_lock(&ieee->wx_mutex);
1267 netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1268 rtllib_stop_send_beacons(priv->rtllib);
1269 del_timer_sync(&ieee->associate_timer);
1270 cancel_delayed_work(&ieee->associate_retry_wq);
1271 rtllib_stop_scan(ieee);
1272 netif_carrier_off(dev);
1273 mutex_unlock(&ieee->wx_mutex);
1274 } else {
1275 netdev_info(dev, "ieee->state is NOT LINKED\n");
1276 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1277 }
1278
1279 rtl92e_dm_backup_state(dev);
1280
1281 mutex_unlock(&priv->wx_mutex);
1282 RT_TRACE(COMP_RESET,
1283 "%s():<==========down process is finished\n",
1284 __func__);
1285
1286 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1287 __func__);
1288 reset_status = _rtl92e_up(dev, true);
1289
1290 RT_TRACE(COMP_RESET,
1291 "%s():<===========up process is finished\n", __func__);
1292 if (reset_status == -1) {
1293 if (reset_times < 3) {
1294 reset_times++;
1295 goto RESET_START;
1296 } else {
1297 netdev_warn(dev, "%s(): Reset Failed\n",
1298 __func__);
1299 }
1300 }
1301
1302 ieee->is_silent_reset = 1;
1303
1304 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1305 priv->RFChangeInProgress = false;
1306 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1307
1308 rtl92e_enable_hw_security_config(dev);
1309
1310 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1311 IW_MODE_INFRA) {
1312 ieee->set_chan(ieee->dev,
1313 ieee->current_network.channel);
1314
1315 schedule_work(&ieee->associate_complete_wq);
1316
1317 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1318 IW_MODE_ADHOC) {
1319 ieee->set_chan(ieee->dev,
1320 ieee->current_network.channel);
1321 ieee->link_change(ieee->dev);
1322
1323 notify_wx_assoc_event(ieee);
1324
1325 rtllib_start_send_beacons(ieee);
1326
1327 netif_carrier_on(ieee->dev);
1328 }
1329
1330 rtl92e_cam_restore(dev);
1331 rtl92e_dm_restore_state(dev);
1332 END:
1333 priv->ResetProgress = RESET_TYPE_NORESET;
1334 priv->reset_count++;
1335
1336 priv->bForcedSilentReset = false;
1337 priv->bResetInProgress = false;
1338
1339 rtl92e_writeb(dev, UFWP, 1);
1340 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1341 priv->reset_count);
1342 }
1343 }
1344
_rtl92e_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)1345 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1346 u32 *TotalRxDataNum)
1347 {
1348 u16 SlotIndex;
1349 u8 i;
1350
1351 *TotalRxBcnNum = 0;
1352 *TotalRxDataNum = 0;
1353
1354 SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1355 (priv->rtllib->LinkDetectInfo.SlotNum);
1356 priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1357 priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1358 priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1359 priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1360 for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1361 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1362 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1363 }
1364 }
1365
_rtl92e_watchdog_wq_cb(void * data)1366 static void _rtl92e_watchdog_wq_cb(void *data)
1367 {
1368 struct r8192_priv *priv = container_of_dwork_rsl(data,
1369 struct r8192_priv, watch_dog_wq);
1370 struct net_device *dev = priv->rtllib->dev;
1371 struct rtllib_device *ieee = priv->rtllib;
1372 enum reset_type ResetType = RESET_TYPE_NORESET;
1373 static u8 check_reset_cnt;
1374 unsigned long flags;
1375 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1376 (&priv->rtllib->PowerSaveControl);
1377 bool bBusyTraffic = false;
1378 bool bHigherBusyTraffic = false;
1379 bool bHigherBusyRxTraffic = false;
1380 bool bEnterPS = false;
1381
1382 if (!priv->up || priv->bHwRadioOff)
1383 return;
1384
1385 if (priv->rtllib->state >= RTLLIB_LINKED) {
1386 if (priv->rtllib->CntAfterLink < 2)
1387 priv->rtllib->CntAfterLink++;
1388 } else {
1389 priv->rtllib->CntAfterLink = 0;
1390 }
1391
1392 rtl92e_dm_watchdog(dev);
1393
1394 if (rtllib_act_scanning(priv->rtllib, false) == false) {
1395 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1396 RTLLIB_NOLINK) &&
1397 (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1398 (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1399 if ((ieee->PowerSaveControl.ReturnPoint ==
1400 IPS_CALLBACK_NONE) &&
1401 (!ieee->bNetPromiscuousMode)) {
1402 RT_TRACE(COMP_PS,
1403 "====================>haha: rtl92e_ips_enter()\n");
1404 rtl92e_ips_enter(dev);
1405 }
1406 }
1407 }
1408 if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1409 IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1410 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1411 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1412 bBusyTraffic = true;
1413
1414
1415 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1416 ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1417 bHigherBusyTraffic = true;
1418 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1419 bHigherBusyRxTraffic = true;
1420 else
1421 bHigherBusyRxTraffic = false;
1422 }
1423
1424 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1425 ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1426 (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1427 bEnterPS = false;
1428 else
1429 bEnterPS = true;
1430
1431 if (ieee->current_network.beacon_interval < 95)
1432 bEnterPS = false;
1433
1434 if (bEnterPS)
1435 rtl92e_leisure_ps_enter(dev);
1436 else
1437 rtl92e_leisure_ps_leave(dev);
1438
1439 } else {
1440 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1441 rtl92e_leisure_ps_leave(dev);
1442 }
1443
1444 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1445 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1446 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1447 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1448
1449 ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1450 ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1451
1452 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1453 u32 TotalRxBcnNum = 0;
1454 u32 TotalRxDataNum = 0;
1455
1456 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1457
1458 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1459 priv->check_roaming_cnt++;
1460 else
1461 priv->check_roaming_cnt = 0;
1462
1463
1464 if (priv->check_roaming_cnt > 0) {
1465 if (ieee->eRFPowerState == eRfOff)
1466 netdev_info(dev, "%s(): RF is off\n", __func__);
1467
1468 netdev_info(dev,
1469 "===>%s(): AP is power off, chan:%d, connect another one\n",
1470 __func__, priv->chan);
1471
1472 ieee->state = RTLLIB_ASSOCIATING;
1473
1474 RemovePeerTS(priv->rtllib,
1475 priv->rtllib->current_network.bssid);
1476 ieee->is_roaming = true;
1477 ieee->is_set_key = false;
1478 ieee->link_change(dev);
1479 if (ieee->LedControlHandler)
1480 ieee->LedControlHandler(ieee->dev,
1481 LED_CTL_START_TO_LINK);
1482
1483 notify_wx_assoc_event(ieee);
1484
1485 if (!(ieee->rtllib_ap_sec_type(ieee) &
1486 (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1487 schedule_delayed_work(
1488 &ieee->associate_procedure_wq, 0);
1489
1490 priv->check_roaming_cnt = 0;
1491 }
1492 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1493 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1494
1495 }
1496
1497 spin_lock_irqsave(&priv->tx_lock, flags);
1498 if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1499 (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1500 ResetType = _rtl92e_if_check_reset(dev);
1501 check_reset_cnt = 3;
1502 }
1503 spin_unlock_irqrestore(&priv->tx_lock, flags);
1504
1505 if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1506 priv->ResetProgress = RESET_TYPE_NORMAL;
1507 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1508 return;
1509 }
1510
1511 if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1512 ResetType == RESET_TYPE_SILENT)))
1513 _rtl92e_if_silent_reset(dev);
1514 priv->force_reset = false;
1515 priv->bForcedSilentReset = false;
1516 priv->bResetInProgress = false;
1517 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1518 }
1519
_rtl92e_watchdog_timer_cb(struct timer_list * t)1520 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1521 {
1522 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1523
1524 schedule_delayed_work(&priv->watch_dog_wq, 0);
1525 mod_timer(&priv->watch_dog_timer, jiffies +
1526 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1527 }
1528
1529 /****************************************************************************
1530 * ---------------------------- NIC TX/RX STUFF---------------------------
1531 ****************************************************************************/
rtl92e_rx_enable(struct net_device * dev)1532 void rtl92e_rx_enable(struct net_device *dev)
1533 {
1534 struct r8192_priv *priv = rtllib_priv(dev);
1535
1536 priv->ops->rx_enable(dev);
1537 }
1538
rtl92e_tx_enable(struct net_device * dev)1539 void rtl92e_tx_enable(struct net_device *dev)
1540 {
1541 struct r8192_priv *priv = rtllib_priv(dev);
1542
1543 priv->ops->tx_enable(dev);
1544
1545 rtllib_reset_queue(priv->rtllib);
1546 }
1547
1548
_rtl92e_free_rx_ring(struct net_device * dev)1549 static void _rtl92e_free_rx_ring(struct net_device *dev)
1550 {
1551 struct r8192_priv *priv = rtllib_priv(dev);
1552 int i, rx_queue_idx;
1553
1554 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1555 rx_queue_idx++) {
1556 for (i = 0; i < priv->rxringcount; i++) {
1557 struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1558
1559 if (!skb)
1560 continue;
1561
1562 pci_unmap_single(priv->pdev,
1563 *((dma_addr_t *)skb->cb),
1564 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1565 kfree_skb(skb);
1566 }
1567
1568 pci_free_consistent(priv->pdev,
1569 sizeof(*priv->rx_ring[rx_queue_idx]) *
1570 priv->rxringcount,
1571 priv->rx_ring[rx_queue_idx],
1572 priv->rx_ring_dma[rx_queue_idx]);
1573 priv->rx_ring[rx_queue_idx] = NULL;
1574 }
1575 }
1576
_rtl92e_free_tx_ring(struct net_device * dev,unsigned int prio)1577 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1578 {
1579 struct r8192_priv *priv = rtllib_priv(dev);
1580 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1581
1582 while (skb_queue_len(&ring->queue)) {
1583 struct tx_desc *entry = &ring->desc[ring->idx];
1584 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1585
1586 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1587 skb->len, PCI_DMA_TODEVICE);
1588 kfree_skb(skb);
1589 ring->idx = (ring->idx + 1) % ring->entries;
1590 }
1591
1592 pci_free_consistent(priv->pdev, sizeof(*ring->desc) * ring->entries,
1593 ring->desc, ring->dma);
1594 ring->desc = NULL;
1595 }
1596
_rtl92e_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1597 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1598 int rate)
1599 {
1600 struct r8192_priv *priv = rtllib_priv(dev);
1601 int ret;
1602 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1603 MAX_DEV_ADDR_SIZE);
1604 u8 queue_index = tcb_desc->queue_index;
1605
1606 if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1607 priv->bResetInProgress) {
1608 kfree_skb(skb);
1609 return;
1610 }
1611
1612 if (queue_index == TXCMD_QUEUE)
1613 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1614 __func__);
1615
1616 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1617 skb_push(skb, priv->rtllib->tx_headroom);
1618 ret = _rtl92e_tx(dev, skb);
1619 if (ret != 0)
1620 kfree_skb(skb);
1621
1622 if (queue_index != MGNT_QUEUE) {
1623 priv->rtllib->stats.tx_bytes += (skb->len -
1624 priv->rtllib->tx_headroom);
1625 priv->rtllib->stats.tx_packets++;
1626 }
1627 }
1628
_rtl92e_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1629 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1630 {
1631 struct r8192_priv *priv = rtllib_priv(dev);
1632 int ret;
1633 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1634 MAX_DEV_ADDR_SIZE);
1635 u8 queue_index = tcb_desc->queue_index;
1636
1637 if (queue_index != TXCMD_QUEUE) {
1638 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1639 !priv->up || priv->bResetInProgress) {
1640 kfree_skb(skb);
1641 return 0;
1642 }
1643 }
1644
1645 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1646 if (queue_index == TXCMD_QUEUE) {
1647 _rtl92e_tx_cmd(dev, skb);
1648 return 0;
1649 }
1650
1651 tcb_desc->RATRIndex = 7;
1652 tcb_desc->bTxDisableRateFallBack = 1;
1653 tcb_desc->bTxUseDriverAssingedRate = 1;
1654 tcb_desc->bTxEnableFwCalcDur = 1;
1655 skb_push(skb, priv->rtllib->tx_headroom);
1656 ret = _rtl92e_tx(dev, skb);
1657 if (ret != 0)
1658 kfree_skb(skb);
1659 return ret;
1660 }
1661
_rtl92e_tx_isr(struct net_device * dev,int prio)1662 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1663 {
1664 struct r8192_priv *priv = rtllib_priv(dev);
1665
1666 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1667
1668 while (skb_queue_len(&ring->queue)) {
1669 struct tx_desc *entry = &ring->desc[ring->idx];
1670 struct sk_buff *skb;
1671
1672 if (prio != BEACON_QUEUE) {
1673 if (entry->OWN)
1674 return;
1675 ring->idx = (ring->idx + 1) % ring->entries;
1676 }
1677
1678 skb = __skb_dequeue(&ring->queue);
1679 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1680 skb->len, PCI_DMA_TODEVICE);
1681
1682 kfree_skb(skb);
1683 }
1684 if (prio != BEACON_QUEUE)
1685 tasklet_schedule(&priv->irq_tx_tasklet);
1686 }
1687
_rtl92e_tx_cmd(struct net_device * dev,struct sk_buff * skb)1688 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1689 {
1690 struct r8192_priv *priv = rtllib_priv(dev);
1691 struct rtl8192_tx_ring *ring;
1692 struct tx_desc_cmd *entry;
1693 unsigned int idx;
1694 struct cb_desc *tcb_desc;
1695 unsigned long flags;
1696
1697 spin_lock_irqsave(&priv->irq_th_lock, flags);
1698 ring = &priv->tx_ring[TXCMD_QUEUE];
1699
1700 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1701 entry = (struct tx_desc_cmd *)&ring->desc[idx];
1702
1703 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1704
1705 priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1706
1707 __skb_queue_tail(&ring->queue, skb);
1708 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1709 }
1710
_rtl92e_tx(struct net_device * dev,struct sk_buff * skb)1711 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1712 {
1713 struct r8192_priv *priv = rtllib_priv(dev);
1714 struct rtl8192_tx_ring *ring;
1715 unsigned long flags;
1716 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1717 MAX_DEV_ADDR_SIZE);
1718 struct tx_desc *pdesc = NULL;
1719 struct rtllib_hdr_1addr *header = NULL;
1720 u16 fc = 0, type = 0;
1721 u8 *pda_addr = NULL;
1722 int idx;
1723 u32 fwinfo_size = 0;
1724
1725 if (priv->bdisable_nic) {
1726 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1727 __func__);
1728 return skb->len;
1729 }
1730
1731 priv->rtllib->bAwakePktSent = true;
1732
1733 fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1734
1735 header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1736 fc = le16_to_cpu(header->frame_ctl);
1737 type = WLAN_FC_GET_TYPE(fc);
1738 pda_addr = header->addr1;
1739
1740 if (is_broadcast_ether_addr(pda_addr))
1741 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1742 else if (is_multicast_ether_addr(pda_addr))
1743 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1744 else
1745 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1746
1747 spin_lock_irqsave(&priv->irq_th_lock, flags);
1748 ring = &priv->tx_ring[tcb_desc->queue_index];
1749 if (tcb_desc->queue_index != BEACON_QUEUE)
1750 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1751 else
1752 idx = 0;
1753
1754 pdesc = &ring->desc[idx];
1755 if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1756 netdev_warn(dev,
1757 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1758 tcb_desc->queue_index, ring->idx, idx, skb->len,
1759 skb_queue_len(&ring->queue));
1760 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1761 return skb->len;
1762 }
1763
1764 if (type == RTLLIB_FTYPE_DATA) {
1765 if (priv->rtllib->LedControlHandler)
1766 priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1767 }
1768 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1769 __skb_queue_tail(&ring->queue, skb);
1770 pdesc->OWN = 1;
1771 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1772 netif_trans_update(dev);
1773
1774 rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1775 return 0;
1776 }
1777
_rtl92e_alloc_rx_ring(struct net_device * dev)1778 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1779 {
1780 struct r8192_priv *priv = rtllib_priv(dev);
1781 struct rx_desc *entry = NULL;
1782 int i, rx_queue_idx;
1783
1784 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1785 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1786 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1787 &priv->rx_ring_dma[rx_queue_idx]);
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 = pci_map_single(priv->pdev,
1807 skb_tail_pointer_rsl(skb),
1808 priv->rxbuffersize,
1809 PCI_DMA_FROMDEVICE);
1810 if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1811 dev_kfree_skb_any(skb);
1812 return -1;
1813 }
1814 entry->BufferAddress = *mapping;
1815
1816 entry->Length = priv->rxbuffersize;
1817 entry->OWN = 1;
1818 }
1819
1820 if (entry)
1821 entry->EOR = 1;
1822 }
1823 return 0;
1824 }
1825
_rtl92e_alloc_tx_ring(struct net_device * dev,unsigned int prio,unsigned int entries)1826 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1827 unsigned int entries)
1828 {
1829 struct r8192_priv *priv = rtllib_priv(dev);
1830 struct tx_desc *ring;
1831 dma_addr_t dma;
1832 int i;
1833
1834 ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
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 pci_unmap_single(priv->pdev,
1909 entry->TxBuffAddr,
1910 skb->len, PCI_DMA_TODEVICE);
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;
1976
1977 ret_val = value;
1978
1979 if (ret_val >= 0)
1980 ret_val = 0;
1981 if (ret_val <= -33)
1982 ret_val = -33;
1983 ret_val = 0 - ret_val;
1984 ret_val *= 3;
1985 if (ret_val == 99)
1986 ret_val = 100;
1987 return ret_val;
1988 }
1989
rtl92e_copy_mpdu_stats(struct rtllib_rx_stats * psrc_stats,struct rtllib_rx_stats * ptarget_stats)1990 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
1991 struct rtllib_rx_stats *ptarget_stats)
1992 {
1993 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
1994 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
1995 }
1996
1997
1998
_rtl92e_rx_normal(struct net_device * dev)1999 static void _rtl92e_rx_normal(struct net_device *dev)
2000 {
2001 struct r8192_priv *priv = rtllib_priv(dev);
2002 struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2003 bool unicast_packet = false;
2004 bool bLedBlinking = true;
2005 u16 fc = 0, type = 0;
2006 u32 skb_len = 0;
2007 int rx_queue_idx = RX_MPDU_QUEUE;
2008
2009 struct rtllib_rx_stats stats = {
2010 .signal = 0,
2011 .noise = (u8)-98,
2012 .rate = 0,
2013 .freq = RTLLIB_24GHZ_BAND,
2014 };
2015 unsigned int count = priv->rxringcount;
2016
2017 stats.nic_type = NIC_8192E;
2018
2019 while (count--) {
2020 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2021 [priv->rx_idx[rx_queue_idx]];
2022 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2023 [priv->rx_idx[rx_queue_idx]];
2024 struct sk_buff *new_skb;
2025
2026 if (pdesc->OWN)
2027 return;
2028 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2029 pdesc, skb))
2030 goto done;
2031 new_skb = dev_alloc_skb(priv->rxbuffersize);
2032 /* if allocation of new skb failed - drop current packet
2033 * and reuse skb
2034 */
2035 if (unlikely(!new_skb))
2036 goto done;
2037
2038 pci_unmap_single(priv->pdev,
2039 *((dma_addr_t *)skb->cb),
2040 priv->rxbuffersize,
2041 PCI_DMA_FROMDEVICE);
2042
2043 skb_put(skb, pdesc->Length);
2044 skb_reserve(skb, stats.RxDrvInfoSize +
2045 stats.RxBufShift);
2046 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2047 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2048 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2049 /* unicast packet */
2050 unicast_packet = true;
2051 }
2052 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2053 type = WLAN_FC_GET_TYPE(fc);
2054 if (type == RTLLIB_FTYPE_MGMT)
2055 bLedBlinking = false;
2056
2057 if (bLedBlinking)
2058 if (priv->rtllib->LedControlHandler)
2059 priv->rtllib->LedControlHandler(dev,
2060 LED_CTL_RX);
2061
2062 if (stats.bCRC) {
2063 if (type != RTLLIB_FTYPE_MGMT)
2064 priv->stats.rxdatacrcerr++;
2065 else
2066 priv->stats.rxmgmtcrcerr++;
2067 }
2068
2069 skb_len = skb->len;
2070
2071 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2072 dev_kfree_skb_any(skb);
2073 } else {
2074 priv->stats.rxok++;
2075 if (unicast_packet)
2076 priv->stats.rxbytesunicast += skb_len;
2077 }
2078
2079 skb = new_skb;
2080 skb->dev = dev;
2081
2082 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2083 skb;
2084 *((dma_addr_t *)skb->cb) = pci_map_single(priv->pdev,
2085 skb_tail_pointer_rsl(skb),
2086 priv->rxbuffersize,
2087 PCI_DMA_FROMDEVICE);
2088 if (pci_dma_mapping_error(priv->pdev,
2089 *((dma_addr_t *)skb->cb))) {
2090 dev_kfree_skb_any(skb);
2091 return;
2092 }
2093 done:
2094 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2095 pdesc->OWN = 1;
2096 pdesc->Length = priv->rxbuffersize;
2097 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
2098 pdesc->EOR = 1;
2099 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2100 priv->rxringcount;
2101 }
2102
2103 }
2104
_rtl92e_tx_resume(struct net_device * dev)2105 static void _rtl92e_tx_resume(struct net_device *dev)
2106 {
2107 struct r8192_priv *priv = rtllib_priv(dev);
2108 struct rtllib_device *ieee = priv->rtllib;
2109 struct sk_buff *skb;
2110 int queue_index;
2111
2112 for (queue_index = BK_QUEUE;
2113 queue_index < MAX_QUEUE_SIZE; queue_index++) {
2114 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2115 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2116 skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2117 ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2118 }
2119 }
2120 }
2121
_rtl92e_irq_tx_tasklet(struct r8192_priv * priv)2122 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2123 {
2124 _rtl92e_tx_resume(priv->rtllib->dev);
2125 }
2126
_rtl92e_irq_rx_tasklet(struct r8192_priv * priv)2127 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2128 {
2129 _rtl92e_rx_normal(priv->rtllib->dev);
2130
2131 rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2132 rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2133 }
2134
2135 /****************************************************************************
2136 * ---------------------------- NIC START/CLOSE STUFF---------------------------
2137 ****************************************************************************/
_rtl92e_cancel_deferred_work(struct r8192_priv * priv)2138 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2139 {
2140 cancel_delayed_work_sync(&priv->watch_dog_wq);
2141 cancel_delayed_work_sync(&priv->update_beacon_wq);
2142 cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2143 cancel_work_sync(&priv->reset_wq);
2144 cancel_work_sync(&priv->qos_activate);
2145 }
2146
_rtl92e_up(struct net_device * dev,bool is_silent_reset)2147 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2148 {
2149 if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2150 return -1;
2151 return 0;
2152 }
2153
_rtl92e_open(struct net_device * dev)2154 static int _rtl92e_open(struct net_device *dev)
2155 {
2156 struct r8192_priv *priv = rtllib_priv(dev);
2157 int ret;
2158
2159 mutex_lock(&priv->wx_mutex);
2160 ret = _rtl92e_try_up(dev);
2161 mutex_unlock(&priv->wx_mutex);
2162 return ret;
2163
2164 }
2165
_rtl92e_try_up(struct net_device * dev)2166 static int _rtl92e_try_up(struct net_device *dev)
2167 {
2168 struct r8192_priv *priv = rtllib_priv(dev);
2169
2170 if (priv->up == 1)
2171 return -1;
2172 return _rtl92e_up(dev, false);
2173 }
2174
2175
_rtl92e_close(struct net_device * dev)2176 static int _rtl92e_close(struct net_device *dev)
2177 {
2178 struct r8192_priv *priv = rtllib_priv(dev);
2179 int ret;
2180
2181 if ((rtllib_act_scanning(priv->rtllib, false)) &&
2182 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2183 rtllib_stop_scan(priv->rtllib);
2184 }
2185
2186 mutex_lock(&priv->wx_mutex);
2187
2188 ret = _rtl92e_down(dev, true);
2189
2190 mutex_unlock(&priv->wx_mutex);
2191
2192 return ret;
2193
2194 }
2195
_rtl92e_down(struct net_device * dev,bool shutdownrf)2196 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2197 {
2198 if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2199 return -1;
2200
2201 return 0;
2202 }
2203
rtl92e_commit(struct net_device * dev)2204 void rtl92e_commit(struct net_device *dev)
2205 {
2206 struct r8192_priv *priv = rtllib_priv(dev);
2207
2208 if (priv->up == 0)
2209 return;
2210 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2211 rtl92e_irq_disable(dev);
2212 priv->ops->stop_adapter(dev, true);
2213 _rtl92e_up(dev, false);
2214 }
2215
_rtl92e_restart(void * data)2216 static void _rtl92e_restart(void *data)
2217 {
2218 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2219 reset_wq);
2220 struct net_device *dev = priv->rtllib->dev;
2221
2222 mutex_lock(&priv->wx_mutex);
2223
2224 rtl92e_commit(dev);
2225
2226 mutex_unlock(&priv->wx_mutex);
2227 }
2228
_rtl92e_set_multicast(struct net_device * dev)2229 static void _rtl92e_set_multicast(struct net_device *dev)
2230 {
2231 struct r8192_priv *priv = rtllib_priv(dev);
2232 short promisc;
2233
2234 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2235 priv->promisc = promisc;
2236
2237 }
2238
2239
_rtl92e_set_mac_adr(struct net_device * dev,void * mac)2240 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2241 {
2242 struct r8192_priv *priv = rtllib_priv(dev);
2243 struct sockaddr *addr = mac;
2244
2245 mutex_lock(&priv->wx_mutex);
2246
2247 ether_addr_copy(dev->dev_addr, addr->sa_data);
2248
2249 schedule_work(&priv->reset_wq);
2250 mutex_unlock(&priv->wx_mutex);
2251
2252 return 0;
2253 }
2254
_rtl92e_irq(int irq,void * netdev)2255 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2256 {
2257 struct net_device *dev = netdev;
2258 struct r8192_priv *priv = rtllib_priv(dev);
2259 unsigned long flags;
2260 u32 inta;
2261 u32 intb;
2262
2263 intb = 0;
2264
2265 if (priv->irq_enabled == 0)
2266 goto done;
2267
2268 spin_lock_irqsave(&priv->irq_th_lock, flags);
2269
2270 priv->ops->interrupt_recognized(dev, &inta, &intb);
2271 priv->stats.shints++;
2272
2273 if (!inta) {
2274 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2275 goto done;
2276 }
2277
2278 if (inta == 0xffff) {
2279 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2280 goto done;
2281 }
2282
2283 priv->stats.ints++;
2284
2285 if (!netif_running(dev)) {
2286 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2287 goto done;
2288 }
2289
2290 if (inta & IMR_TBDOK) {
2291 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2292 priv->stats.txbeaconokint++;
2293 }
2294
2295 if (inta & IMR_TBDER) {
2296 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2297 priv->stats.txbeaconerr++;
2298 }
2299
2300 if (inta & IMR_BDOK)
2301 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2302
2303 if (inta & IMR_MGNTDOK) {
2304 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2305 priv->stats.txmanageokint++;
2306 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2307 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2308 if (priv->rtllib->ack_tx_to_ieee) {
2309 if (_rtl92e_is_tx_queue_empty(dev)) {
2310 priv->rtllib->ack_tx_to_ieee = 0;
2311 rtllib_ps_tx_ack(priv->rtllib, 1);
2312 }
2313 }
2314 spin_lock_irqsave(&priv->irq_th_lock, flags);
2315 }
2316
2317 if (inta & IMR_COMDOK) {
2318 priv->stats.txcmdpktokint++;
2319 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2320 }
2321
2322 if (inta & IMR_HIGHDOK)
2323 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2324
2325 if (inta & IMR_ROK) {
2326 priv->stats.rxint++;
2327 priv->InterruptLog.nIMR_ROK++;
2328 tasklet_schedule(&priv->irq_rx_tasklet);
2329 }
2330
2331 if (inta & IMR_BcnInt) {
2332 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2333 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2334 }
2335
2336 if (inta & IMR_RDU) {
2337 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2338 priv->stats.rxrdu++;
2339 rtl92e_writel(dev, INTA_MASK,
2340 rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2341 tasklet_schedule(&priv->irq_rx_tasklet);
2342 }
2343
2344 if (inta & IMR_RXFOVW) {
2345 RT_TRACE(COMP_INTR, "rx overflow !\n");
2346 priv->stats.rxoverflow++;
2347 tasklet_schedule(&priv->irq_rx_tasklet);
2348 }
2349
2350 if (inta & IMR_TXFOVW)
2351 priv->stats.txoverflow++;
2352
2353 if (inta & IMR_BKDOK) {
2354 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2355 priv->stats.txbkokint++;
2356 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2357 _rtl92e_tx_isr(dev, BK_QUEUE);
2358 }
2359
2360 if (inta & IMR_BEDOK) {
2361 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2362 priv->stats.txbeokint++;
2363 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2364 _rtl92e_tx_isr(dev, BE_QUEUE);
2365 }
2366
2367 if (inta & IMR_VIDOK) {
2368 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2369 priv->stats.txviokint++;
2370 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2371 _rtl92e_tx_isr(dev, VI_QUEUE);
2372 }
2373
2374 if (inta & IMR_VODOK) {
2375 priv->stats.txvookint++;
2376 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2377 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2378 _rtl92e_tx_isr(dev, VO_QUEUE);
2379 }
2380
2381 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2382
2383 done:
2384
2385 return IRQ_HANDLED;
2386 }
2387
2388
2389
2390 /****************************************************************************
2391 * ---------------------------- PCI_STUFF---------------------------
2392 ****************************************************************************/
2393 static const struct net_device_ops rtl8192_netdev_ops = {
2394 .ndo_open = _rtl92e_open,
2395 .ndo_stop = _rtl92e_close,
2396 .ndo_tx_timeout = _rtl92e_tx_timeout,
2397 .ndo_set_rx_mode = _rtl92e_set_multicast,
2398 .ndo_set_mac_address = _rtl92e_set_mac_adr,
2399 .ndo_validate_addr = eth_validate_addr,
2400 .ndo_start_xmit = rtllib_xmit,
2401 };
2402
_rtl92e_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)2403 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2404 const struct pci_device_id *id)
2405 {
2406 unsigned long ioaddr = 0;
2407 struct net_device *dev = NULL;
2408 struct r8192_priv *priv = NULL;
2409 struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2410 unsigned long pmem_start, pmem_len, pmem_flags;
2411 int err = -ENOMEM;
2412 u8 revision_id;
2413
2414 RT_TRACE(COMP_INIT, "Configuring chip resources");
2415
2416 if (pci_enable_device(pdev)) {
2417 dev_err(&pdev->dev, "Failed to enable PCI device");
2418 return -EIO;
2419 }
2420
2421 pci_set_master(pdev);
2422
2423 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2424 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2425 dev_info(&pdev->dev,
2426 "Unable to obtain 32bit DMA for consistent allocations\n");
2427 goto err_pci_disable;
2428 }
2429 }
2430 dev = alloc_rtllib(sizeof(struct r8192_priv));
2431 if (!dev)
2432 goto err_pci_disable;
2433
2434 err = -ENODEV;
2435
2436 pci_set_drvdata(pdev, dev);
2437 SET_NETDEV_DEV(dev, &pdev->dev);
2438 priv = rtllib_priv(dev);
2439 priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2440 priv->pdev = pdev;
2441 priv->rtllib->pdev = pdev;
2442 if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2443 (pdev->subsystem_device == 0x3304))
2444 priv->rtllib->bSupportRemoteWakeUp = 1;
2445 else
2446 priv->rtllib->bSupportRemoteWakeUp = 0;
2447
2448 pmem_start = pci_resource_start(pdev, 1);
2449 pmem_len = pci_resource_len(pdev, 1);
2450 pmem_flags = pci_resource_flags(pdev, 1);
2451
2452 if (!(pmem_flags & IORESOURCE_MEM)) {
2453 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2454 goto err_rel_rtllib;
2455 }
2456
2457 dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2458 pmem_start);
2459 if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2460 netdev_err(dev, "request_mem_region failed!");
2461 goto err_rel_rtllib;
2462 }
2463
2464
2465 ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2466 if (ioaddr == (unsigned long)NULL) {
2467 netdev_err(dev, "ioremap failed!");
2468 goto err_rel_mem;
2469 }
2470
2471 dev->mem_start = ioaddr;
2472 dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2473
2474 pci_read_config_byte(pdev, 0x08, &revision_id);
2475 /* If the revisionid is 0x10, the device uses rtl8192se. */
2476 if (pdev->device == 0x8192 && revision_id == 0x10)
2477 goto err_unmap;
2478
2479 priv->ops = ops;
2480
2481 if (rtl92e_check_adapter(pdev, dev) == false)
2482 goto err_unmap;
2483
2484 dev->irq = pdev->irq;
2485 priv->irq = 0;
2486
2487 dev->netdev_ops = &rtl8192_netdev_ops;
2488
2489 dev->wireless_handlers = &r8192_wx_handlers_def;
2490 dev->ethtool_ops = &rtl819x_ethtool_ops;
2491
2492 dev->type = ARPHRD_ETHER;
2493 dev->watchdog_timeo = HZ * 3;
2494
2495 if (dev_alloc_name(dev, ifname) < 0) {
2496 RT_TRACE(COMP_INIT,
2497 "Oops: devname already taken! Trying wlan%%d...\n");
2498 dev_alloc_name(dev, ifname);
2499 }
2500
2501 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2502 if (_rtl92e_init(dev) != 0) {
2503 netdev_warn(dev, "Initialization failed");
2504 goto err_free_irq;
2505 }
2506
2507 netif_carrier_off(dev);
2508 netif_stop_queue(dev);
2509
2510 if (register_netdev(dev))
2511 goto err_free_irq;
2512 RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2513
2514 if (priv->polling_timer_on == 0)
2515 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2516
2517 RT_TRACE(COMP_INIT, "Driver probe completed\n");
2518 return 0;
2519
2520 err_free_irq:
2521 free_irq(dev->irq, dev);
2522 priv->irq = 0;
2523 err_unmap:
2524 iounmap((void __iomem *)ioaddr);
2525 err_rel_mem:
2526 release_mem_region(pmem_start, pmem_len);
2527 err_rel_rtllib:
2528 free_rtllib(dev);
2529 err_pci_disable:
2530 pci_disable_device(pdev);
2531 return err;
2532 }
2533
_rtl92e_pci_disconnect(struct pci_dev * pdev)2534 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2535 {
2536 struct net_device *dev = pci_get_drvdata(pdev);
2537 struct r8192_priv *priv;
2538 u32 i;
2539
2540 if (dev) {
2541 unregister_netdev(dev);
2542
2543 priv = rtllib_priv(dev);
2544
2545 del_timer_sync(&priv->gpio_polling_timer);
2546 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2547 priv->polling_timer_on = 0;
2548 _rtl92e_down(dev, true);
2549 rtl92e_dm_deinit(dev);
2550 vfree(priv->pFirmware);
2551 priv->pFirmware = NULL;
2552 _rtl92e_free_rx_ring(dev);
2553 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2554 _rtl92e_free_tx_ring(dev, i);
2555
2556 if (priv->irq) {
2557 dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2558 free_irq(dev->irq, dev);
2559 priv->irq = 0;
2560 }
2561 free_rtllib(dev);
2562
2563 if (dev->mem_start != 0) {
2564 iounmap((void __iomem *)dev->mem_start);
2565 release_mem_region(pci_resource_start(pdev, 1),
2566 pci_resource_len(pdev, 1));
2567 }
2568 } else {
2569 priv = rtllib_priv(dev);
2570 }
2571
2572 pci_disable_device(pdev);
2573 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2574 }
2575
rtl92e_enable_nic(struct net_device * dev)2576 bool rtl92e_enable_nic(struct net_device *dev)
2577 {
2578 bool init_status = true;
2579 struct r8192_priv *priv = rtllib_priv(dev);
2580 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2581 (&priv->rtllib->PowerSaveControl);
2582
2583 if (!priv->up) {
2584 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2585 priv->bdisable_nic = false;
2586 return false;
2587 }
2588
2589 RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2590 priv->bfirst_init = true;
2591 init_status = priv->ops->initialize_adapter(dev);
2592 if (!init_status) {
2593 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2594 priv->bdisable_nic = false;
2595 return false;
2596 }
2597 RT_TRACE(COMP_INIT, "start adapter finished\n");
2598 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2599 priv->bfirst_init = false;
2600
2601 rtl92e_irq_enable(dev);
2602 priv->bdisable_nic = false;
2603 RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2604 return init_status;
2605 }
2606
rtl92e_disable_nic(struct net_device * dev)2607 bool rtl92e_disable_nic(struct net_device *dev)
2608 {
2609 struct r8192_priv *priv = rtllib_priv(dev);
2610 u8 tmp_state = 0;
2611
2612 RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2613 priv->bdisable_nic = true;
2614 tmp_state = priv->rtllib->state;
2615 rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2616 priv->rtllib->state = tmp_state;
2617 _rtl92e_cancel_deferred_work(priv);
2618 rtl92e_irq_disable(dev);
2619
2620 priv->ops->stop_adapter(dev, false);
2621 RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2622
2623 return true;
2624 }
2625
2626 module_pci_driver(rtl8192_pci_driver);
2627
rtl92e_check_rfctrl_gpio_timer(struct timer_list * t)2628 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2629 {
2630 struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2631
2632 priv->polling_timer_on = 1;
2633
2634 schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2635
2636 mod_timer(&priv->gpio_polling_timer, jiffies +
2637 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2638 }
2639
2640 /***************************************************************************
2641 * ------------------- module init / exit stubs ----------------
2642 ***************************************************************************/
2643 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2644 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2645 MODULE_VERSION(DRV_VERSION);
2646 MODULE_LICENSE("GPL");
2647 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2648 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2649 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2650
2651 module_param(ifname, charp, 0644);
2652 module_param(hwwep, int, 0644);
2653 module_param(channels, int, 0644);
2654
2655 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2656 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2657 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2658
