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 = net->bssht.bd_rt2rt_long_slot_time;
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 tasklet_struct * t)519 static void _rtl92e_prepare_beacon(struct tasklet_struct *t)
520 {
521 struct r8192_priv *priv = from_tasklet(priv, t,
522 irq_prepare_beacon_tasklet);
523 struct net_device *dev = priv->rtllib->dev;
524 struct sk_buff *pskb = NULL, *pnewskb = NULL;
525 struct cb_desc *tcb_desc = NULL;
526 struct rtl8192_tx_ring *ring = NULL;
527 struct tx_desc *pdesc = NULL;
528
529 ring = &priv->tx_ring[BEACON_QUEUE];
530 pskb = __skb_dequeue(&ring->queue);
531 kfree_skb(pskb);
532
533 pnewskb = rtllib_get_beacon(priv->rtllib);
534 if (!pnewskb)
535 return;
536
537 tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
538 tcb_desc->queue_index = BEACON_QUEUE;
539 tcb_desc->data_rate = 2;
540 tcb_desc->RATRIndex = 7;
541 tcb_desc->bTxDisableRateFallBack = 1;
542 tcb_desc->bTxUseDriverAssingedRate = 1;
543 skb_push(pnewskb, priv->rtllib->tx_headroom);
544
545 pdesc = &ring->desc[0];
546 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
547 __skb_queue_tail(&ring->queue, pnewskb);
548 pdesc->OWN = 1;
549 }
550
_rtl92e_stop_beacon(struct net_device * dev)551 static void _rtl92e_stop_beacon(struct net_device *dev)
552 {
553 }
554
rtl92e_config_rate(struct net_device * dev,u16 * rate_config)555 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
556 {
557 struct r8192_priv *priv = rtllib_priv(dev);
558 struct rtllib_network *net;
559 u8 i = 0, basic_rate = 0;
560
561 net = &priv->rtllib->current_network;
562
563 for (i = 0; i < net->rates_len; i++) {
564 basic_rate = net->rates[i] & 0x7f;
565 switch (basic_rate) {
566 case MGN_1M:
567 *rate_config |= RRSR_1M;
568 break;
569 case MGN_2M:
570 *rate_config |= RRSR_2M;
571 break;
572 case MGN_5_5M:
573 *rate_config |= RRSR_5_5M;
574 break;
575 case MGN_11M:
576 *rate_config |= RRSR_11M;
577 break;
578 case MGN_6M:
579 *rate_config |= RRSR_6M;
580 break;
581 case MGN_9M:
582 *rate_config |= RRSR_9M;
583 break;
584 case MGN_12M:
585 *rate_config |= RRSR_12M;
586 break;
587 case MGN_18M:
588 *rate_config |= RRSR_18M;
589 break;
590 case MGN_24M:
591 *rate_config |= RRSR_24M;
592 break;
593 case MGN_36M:
594 *rate_config |= RRSR_36M;
595 break;
596 case MGN_48M:
597 *rate_config |= RRSR_48M;
598 break;
599 case MGN_54M:
600 *rate_config |= RRSR_54M;
601 break;
602 }
603 }
604
605 for (i = 0; i < net->rates_ex_len; i++) {
606 basic_rate = net->rates_ex[i] & 0x7f;
607 switch (basic_rate) {
608 case MGN_1M:
609 *rate_config |= RRSR_1M;
610 break;
611 case MGN_2M:
612 *rate_config |= RRSR_2M;
613 break;
614 case MGN_5_5M:
615 *rate_config |= RRSR_5_5M;
616 break;
617 case MGN_11M:
618 *rate_config |= RRSR_11M;
619 break;
620 case MGN_6M:
621 *rate_config |= RRSR_6M;
622 break;
623 case MGN_9M:
624 *rate_config |= RRSR_9M;
625 break;
626 case MGN_12M:
627 *rate_config |= RRSR_12M;
628 break;
629 case MGN_18M:
630 *rate_config |= RRSR_18M;
631 break;
632 case MGN_24M:
633 *rate_config |= RRSR_24M;
634 break;
635 case MGN_36M:
636 *rate_config |= RRSR_36M;
637 break;
638 case MGN_48M:
639 *rate_config |= RRSR_48M;
640 break;
641 case MGN_54M:
642 *rate_config |= RRSR_54M;
643 break;
644 }
645 }
646 }
647
_rtl92e_refresh_support_rate(struct r8192_priv * priv)648 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
649 {
650 struct rtllib_device *ieee = priv->rtllib;
651
652 if (ieee->mode == WIRELESS_MODE_N_24G ||
653 ieee->mode == WIRELESS_MODE_N_5G) {
654 memcpy(ieee->Regdot11HTOperationalRateSet,
655 ieee->RegHTSuppRateSet, 16);
656 memcpy(ieee->Regdot11TxHTOperationalRateSet,
657 ieee->RegHTSuppRateSet, 16);
658
659 } else {
660 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
661 }
662 }
663
_rtl92e_get_supported_wireless_mode(struct net_device * dev)664 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
665 {
666 struct r8192_priv *priv = rtllib_priv(dev);
667 u8 ret = 0;
668
669 switch (priv->rf_chip) {
670 case RF_8225:
671 case RF_8256:
672 case RF_6052:
673 case RF_PSEUDO_11N:
674 ret = (WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B);
675 break;
676 case RF_8258:
677 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
678 break;
679 default:
680 ret = WIRELESS_MODE_B;
681 break;
682 }
683 return ret;
684 }
685
rtl92e_set_wireless_mode(struct net_device * dev,u8 wireless_mode)686 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
687 {
688 struct r8192_priv *priv = rtllib_priv(dev);
689 u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
690
691 if ((wireless_mode == WIRELESS_MODE_AUTO) ||
692 ((wireless_mode & bSupportMode) == 0)) {
693 if (bSupportMode & WIRELESS_MODE_N_24G) {
694 wireless_mode = WIRELESS_MODE_N_24G;
695 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
696 wireless_mode = WIRELESS_MODE_N_5G;
697 } else if ((bSupportMode & WIRELESS_MODE_A)) {
698 wireless_mode = WIRELESS_MODE_A;
699 } else if ((bSupportMode & WIRELESS_MODE_G)) {
700 wireless_mode = WIRELESS_MODE_G;
701 } else if ((bSupportMode & WIRELESS_MODE_B)) {
702 wireless_mode = WIRELESS_MODE_B;
703 } else {
704 netdev_info(dev,
705 "%s(): Unsupported mode requested. Fallback to 802.11b\n",
706 __func__);
707 wireless_mode = WIRELESS_MODE_B;
708 }
709 }
710
711 if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
712 (WIRELESS_MODE_G | WIRELESS_MODE_B))
713 wireless_mode = WIRELESS_MODE_G;
714
715 priv->rtllib->mode = wireless_mode;
716
717 if ((wireless_mode == WIRELESS_MODE_N_24G) ||
718 (wireless_mode == WIRELESS_MODE_N_5G)) {
719 priv->rtllib->pHTInfo->bEnableHT = 1;
720 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
721 __func__, wireless_mode);
722 } else {
723 priv->rtllib->pHTInfo->bEnableHT = 0;
724 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
725 __func__, wireless_mode);
726 }
727
728 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
729 _rtl92e_refresh_support_rate(priv);
730 }
731
_rtl92e_sta_up(struct net_device * dev,bool is_silent_reset)732 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
733 {
734 struct r8192_priv *priv = rtllib_priv(dev);
735 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
736 (&priv->rtllib->PowerSaveControl);
737 bool init_status;
738
739 priv->bDriverIsGoingToUnload = false;
740 priv->bdisable_nic = false;
741
742 priv->up = 1;
743 priv->rtllib->ieee_up = 1;
744
745 priv->up_first_time = 0;
746 RT_TRACE(COMP_INIT, "Bringing up iface");
747 priv->bfirst_init = true;
748 init_status = priv->ops->initialize_adapter(dev);
749 if (!init_status) {
750 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
751 priv->bfirst_init = false;
752 return -1;
753 }
754
755 RT_TRACE(COMP_INIT, "start adapter finished\n");
756 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
757 priv->bfirst_init = false;
758
759 if (priv->polling_timer_on == 0)
760 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
761
762 if (priv->rtllib->state != RTLLIB_LINKED)
763 rtllib_softmac_start_protocol(priv->rtllib, 0);
764 rtllib_reset_queue(priv->rtllib);
765 _rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
766
767 if (!netif_queue_stopped(dev))
768 netif_start_queue(dev);
769 else
770 netif_wake_queue(dev);
771
772 return 0;
773 }
774
_rtl92e_sta_down(struct net_device * dev,bool shutdownrf)775 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
776 {
777 struct r8192_priv *priv = rtllib_priv(dev);
778 unsigned long flags = 0;
779 u8 RFInProgressTimeOut = 0;
780
781 if (priv->up == 0)
782 return -1;
783
784 if (priv->rtllib->rtllib_ips_leave)
785 priv->rtllib->rtllib_ips_leave(dev);
786
787 if (priv->rtllib->state == RTLLIB_LINKED)
788 rtl92e_leisure_ps_leave(dev);
789
790 priv->bDriverIsGoingToUnload = true;
791 priv->up = 0;
792 priv->rtllib->ieee_up = 0;
793 priv->bfirst_after_down = true;
794 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
795 if (!netif_queue_stopped(dev))
796 netif_stop_queue(dev);
797
798 priv->rtllib->wpa_ie_len = 0;
799 kfree(priv->rtllib->wpa_ie);
800 priv->rtllib->wpa_ie = NULL;
801 rtl92e_cam_reset(dev);
802 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
803 rtl92e_irq_disable(dev);
804
805 del_timer_sync(&priv->watch_dog_timer);
806 _rtl92e_cancel_deferred_work(priv);
807 cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
808
809 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
810 spin_lock_irqsave(&priv->rf_ps_lock, flags);
811 while (priv->RFChangeInProgress) {
812 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
813 if (RFInProgressTimeOut > 100) {
814 spin_lock_irqsave(&priv->rf_ps_lock, flags);
815 break;
816 }
817 RT_TRACE(COMP_DBG,
818 "===>%s():RF is in progress, need to wait until rf change is done.\n",
819 __func__);
820 mdelay(1);
821 RFInProgressTimeOut++;
822 spin_lock_irqsave(&priv->rf_ps_lock, flags);
823 }
824 priv->RFChangeInProgress = true;
825 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
826 priv->ops->stop_adapter(dev, false);
827 spin_lock_irqsave(&priv->rf_ps_lock, flags);
828 priv->RFChangeInProgress = false;
829 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
830 udelay(100);
831 memset(&priv->rtllib->current_network, 0,
832 offsetof(struct rtllib_network, list));
833 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
834
835 return 0;
836 }
837
_rtl92e_init_priv_handler(struct net_device * dev)838 static void _rtl92e_init_priv_handler(struct net_device *dev)
839 {
840 struct r8192_priv *priv = rtllib_priv(dev);
841
842 priv->rtllib->softmac_hard_start_xmit = _rtl92e_hard_start_xmit;
843 priv->rtllib->set_chan = _rtl92e_set_chan;
844 priv->rtllib->link_change = priv->ops->link_change;
845 priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
846 priv->rtllib->check_nic_enough_desc = _rtl92e_check_nic_enough_desc;
847 priv->rtllib->handle_assoc_response = _rtl92e_handle_assoc_response;
848 priv->rtllib->handle_beacon = _rtl92e_handle_beacon;
849 priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
850 priv->rtllib->LeisurePSLeave = rtl92e_leisure_ps_leave;
851 priv->rtllib->SetBWModeHandler = rtl92e_set_bw_mode;
852 priv->rf_set_chan = rtl92e_set_channel;
853
854 priv->rtllib->start_send_beacons = rtl92e_start_beacon;
855 priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
856
857 priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
858 priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
859 priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
860
861 priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
862 priv->rtllib->GetHalfNmodeSupportByAPsHandler =
863 rtl92e_is_halfn_supported_by_ap;
864
865 priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
866 priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
867 priv->rtllib->SetFwCmdHandler = NULL;
868 priv->rtllib->InitialGainHandler = rtl92e_init_gain;
869 priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
870 priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
871
872 priv->rtllib->LedControlHandler = NULL;
873 priv->rtllib->UpdateBeaconInterruptHandler = NULL;
874
875 priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
876 }
877
_rtl92e_init_priv_constant(struct net_device * dev)878 static void _rtl92e_init_priv_constant(struct net_device *dev)
879 {
880 struct r8192_priv *priv = rtllib_priv(dev);
881 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
882 &priv->rtllib->PowerSaveControl;
883
884 pPSC->RegMaxLPSAwakeIntvl = 5;
885 }
886
887
_rtl92e_init_priv_variable(struct net_device * dev)888 static void _rtl92e_init_priv_variable(struct net_device *dev)
889 {
890 struct r8192_priv *priv = rtllib_priv(dev);
891 u8 i;
892
893 priv->AcmMethod = eAcmWay2_SW;
894 priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
895 priv->rtllib->status = 0;
896 priv->polling_timer_on = 0;
897 priv->up_first_time = 1;
898 priv->blinked_ingpio = false;
899 priv->bDriverIsGoingToUnload = false;
900 priv->being_init_adapter = false;
901 priv->initialized_at_probe = false;
902 priv->bdisable_nic = false;
903 priv->bfirst_init = false;
904 priv->txringcount = 64;
905 priv->rxbuffersize = 9100;
906 priv->rxringcount = MAX_RX_COUNT;
907 priv->irq_enabled = 0;
908 priv->chan = 1;
909 priv->RegChannelPlan = 0xf;
910 priv->rtllib->mode = WIRELESS_MODE_AUTO;
911 priv->rtllib->iw_mode = IW_MODE_INFRA;
912 priv->rtllib->bNetPromiscuousMode = false;
913 priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
914 priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
915 false;
916 priv->rtllib->ieee_up = 0;
917 priv->retry_rts = DEFAULT_RETRY_RTS;
918 priv->retry_data = DEFAULT_RETRY_DATA;
919 priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
920 priv->rtllib->rate = 110;
921 priv->rtllib->short_slot = 1;
922 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
923 priv->bcck_in_ch14 = false;
924 priv->bfsync_processing = false;
925 priv->CCKPresentAttentuation = 0;
926 priv->rfa_txpowertrackingindex = 0;
927 priv->rfc_txpowertrackingindex = 0;
928 priv->CckPwEnl = 6;
929 priv->ScanDelay = 50;
930 priv->ResetProgress = RESET_TYPE_NORESET;
931 priv->bForcedSilentReset = false;
932 priv->bDisableNormalResetCheck = false;
933 priv->force_reset = false;
934 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
935
936 memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
937 priv->RxCounter = 0;
938 priv->rtllib->wx_set_enc = 0;
939 priv->bHwRadioOff = false;
940 priv->RegRfOff = false;
941 priv->isRFOff = false;
942 priv->bInPowerSaveMode = false;
943 priv->rtllib->RfOffReason = 0;
944 priv->RFChangeInProgress = false;
945 priv->bHwRfOffAction = 0;
946 priv->SetRFPowerStateInProgress = false;
947 priv->rtllib->PowerSaveControl.bInactivePs = true;
948 priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
949 priv->rtllib->PowerSaveControl.bLeisurePs = true;
950 priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
951 priv->rtllib->LPSDelayCnt = 0;
952 priv->rtllib->sta_sleep = LPS_IS_WAKE;
953 priv->rtllib->eRFPowerState = eRfOn;
954
955 priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
956 priv->rtllib->iw_mode = IW_MODE_INFRA;
957 priv->rtllib->active_scan = 1;
958 priv->rtllib->be_scan_inprogress = false;
959 priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
960 RTLLIB_OFDM_MODULATION;
961 priv->rtllib->host_encrypt = 1;
962 priv->rtllib->host_decrypt = 1;
963
964 priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
965
966 priv->card_type = PCI;
967
968 priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
969 if (!priv->pFirmware)
970 netdev_err(dev,
971 "rtl8192e: Unable to allocate space for firmware\n");
972
973 skb_queue_head_init(&priv->skb_queue);
974
975 for (i = 0; i < MAX_QUEUE_SIZE; i++)
976 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
977 for (i = 0; i < MAX_QUEUE_SIZE; i++)
978 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
979 }
980
_rtl92e_init_priv_lock(struct r8192_priv * priv)981 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
982 {
983 spin_lock_init(&priv->tx_lock);
984 spin_lock_init(&priv->irq_th_lock);
985 spin_lock_init(&priv->rf_ps_lock);
986 spin_lock_init(&priv->ps_lock);
987 mutex_init(&priv->wx_mutex);
988 mutex_init(&priv->rf_mutex);
989 mutex_init(&priv->mutex);
990 }
991
_rtl92e_init_priv_task(struct net_device * dev)992 static void _rtl92e_init_priv_task(struct net_device *dev)
993 {
994 struct r8192_priv *priv = rtllib_priv(dev);
995
996 INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
997 INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
998 dev);
999 INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1000 (void *)_rtl92e_watchdog_wq_cb, dev);
1001 INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1002 (void *)rtl92e_dm_txpower_tracking_wq, dev);
1003 INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1004 (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1005 INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1006 (void *)_rtl92e_update_beacon, dev);
1007 INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1008 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1009 (void *)rtl92e_hw_wakeup_wq, dev);
1010 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1011 (void *)rtl92e_hw_sleep_wq, dev);
1012 tasklet_setup(&priv->irq_rx_tasklet, _rtl92e_irq_rx_tasklet);
1013 tasklet_setup(&priv->irq_tx_tasklet, _rtl92e_irq_tx_tasklet);
1014 tasklet_setup(&priv->irq_prepare_beacon_tasklet,
1015 _rtl92e_prepare_beacon);
1016 }
1017
_rtl92e_get_channel_map(struct net_device * dev)1018 static short _rtl92e_get_channel_map(struct net_device *dev)
1019 {
1020 int i;
1021
1022 struct r8192_priv *priv = rtllib_priv(dev);
1023
1024 if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256) &&
1025 (priv->rf_chip != RF_6052)) {
1026 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1027 __func__);
1028 return -1;
1029 }
1030
1031 if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1032 netdev_info(dev,
1033 "rtl819x_init:Error channel plan! Set to default.\n");
1034 priv->ChannelPlan = COUNTRY_CODE_FCC;
1035 }
1036 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1037 dot11d_init(priv->rtllib);
1038 dot11d_channel_map(priv->ChannelPlan, priv->rtllib);
1039 for (i = 1; i <= 11; i++)
1040 (priv->rtllib->active_channel_map)[i] = 1;
1041 (priv->rtllib->active_channel_map)[12] = 2;
1042 (priv->rtllib->active_channel_map)[13] = 2;
1043
1044 return 0;
1045 }
1046
_rtl92e_init(struct net_device * dev)1047 static short _rtl92e_init(struct net_device *dev)
1048 {
1049 struct r8192_priv *priv = rtllib_priv(dev);
1050
1051 memset(&priv->stats, 0, sizeof(struct rt_stats));
1052
1053 _rtl92e_init_priv_handler(dev);
1054 _rtl92e_init_priv_constant(dev);
1055 _rtl92e_init_priv_variable(dev);
1056 _rtl92e_init_priv_lock(priv);
1057 _rtl92e_init_priv_task(dev);
1058 priv->ops->get_eeprom_size(dev);
1059 priv->ops->init_adapter_variable(dev);
1060 _rtl92e_get_channel_map(dev);
1061
1062 rtl92e_dm_init(dev);
1063
1064 timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
1065
1066 timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
1067 0);
1068
1069 rtl92e_irq_disable(dev);
1070 if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1071 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1072 return -1;
1073 }
1074
1075 priv->irq = dev->irq;
1076 RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1077
1078 if (_rtl92e_pci_initdescring(dev) != 0) {
1079 netdev_err(dev, "Endopoints initialization failed");
1080 free_irq(dev->irq, dev);
1081 return -1;
1082 }
1083
1084 return 0;
1085 }
1086
1087 /***************************************************************************
1088 * -------------------------------WATCHDOG STUFF---------------------------
1089 **************************************************************************/
_rtl92e_is_tx_queue_empty(struct net_device * dev)1090 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1091 {
1092 int i = 0;
1093 struct r8192_priv *priv = rtllib_priv(dev);
1094
1095 for (i = 0; i <= MGNT_QUEUE; i++) {
1096 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1097 continue;
1098 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1099 netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1100 i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1101 return 0;
1102 }
1103 }
1104 return 1;
1105 }
1106
_rtl92e_tx_check_stuck(struct net_device * dev)1107 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1108 {
1109 struct r8192_priv *priv = rtllib_priv(dev);
1110 u8 QueueID;
1111 bool bCheckFwTxCnt = false;
1112 struct rtl8192_tx_ring *ring = NULL;
1113 struct sk_buff *skb = NULL;
1114 struct cb_desc *tcb_desc = NULL;
1115 unsigned long flags = 0;
1116
1117 switch (priv->rtllib->ps) {
1118 case RTLLIB_PS_DISABLED:
1119 break;
1120 case (RTLLIB_PS_MBCAST | RTLLIB_PS_UNICAST):
1121 break;
1122 default:
1123 break;
1124 }
1125 spin_lock_irqsave(&priv->irq_th_lock, flags);
1126 for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1127 if (QueueID == TXCMD_QUEUE)
1128 continue;
1129
1130 if (QueueID == BEACON_QUEUE)
1131 continue;
1132
1133 ring = &priv->tx_ring[QueueID];
1134
1135 if (skb_queue_len(&ring->queue) == 0) {
1136 continue;
1137 } else {
1138 skb = __skb_peek(&ring->queue);
1139 tcb_desc = (struct cb_desc *)(skb->cb +
1140 MAX_DEV_ADDR_SIZE);
1141 tcb_desc->nStuckCount++;
1142 bCheckFwTxCnt = true;
1143 if (tcb_desc->nStuckCount > 1)
1144 netdev_info(dev,
1145 "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1146 __func__, QueueID,
1147 tcb_desc->nStuckCount);
1148 }
1149 }
1150 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1151
1152 if (bCheckFwTxCnt) {
1153 if (priv->ops->TxCheckStuckHandler(dev)) {
1154 RT_TRACE(COMP_RESET,
1155 "TxCheckStuck(): Fw indicates no Tx condition!\n");
1156 return RESET_TYPE_SILENT;
1157 }
1158 }
1159
1160 return RESET_TYPE_NORESET;
1161 }
1162
_rtl92e_rx_check_stuck(struct net_device * dev)1163 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1164 {
1165 struct r8192_priv *priv = rtllib_priv(dev);
1166
1167 if (priv->ops->RxCheckStuckHandler(dev)) {
1168 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1169 return RESET_TYPE_SILENT;
1170 }
1171
1172 return RESET_TYPE_NORESET;
1173 }
1174
_rtl92e_if_check_reset(struct net_device * dev)1175 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1176 {
1177 struct r8192_priv *priv = rtllib_priv(dev);
1178 enum reset_type TxResetType = RESET_TYPE_NORESET;
1179 enum reset_type RxResetType = RESET_TYPE_NORESET;
1180 enum rt_rf_power_state rfState;
1181
1182 rfState = priv->rtllib->eRFPowerState;
1183
1184 if (rfState == eRfOn)
1185 TxResetType = _rtl92e_tx_check_stuck(dev);
1186
1187 if (rfState == eRfOn &&
1188 (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1189 (priv->rtllib->state == RTLLIB_LINKED))
1190 RxResetType = _rtl92e_rx_check_stuck(dev);
1191
1192 if (TxResetType == RESET_TYPE_NORMAL ||
1193 RxResetType == RESET_TYPE_NORMAL) {
1194 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1195 __func__, TxResetType, RxResetType);
1196 return RESET_TYPE_NORMAL;
1197 } else if (TxResetType == RESET_TYPE_SILENT ||
1198 RxResetType == RESET_TYPE_SILENT) {
1199 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1200 __func__, TxResetType, RxResetType);
1201 return RESET_TYPE_SILENT;
1202 } else {
1203 return RESET_TYPE_NORESET;
1204 }
1205
1206 }
1207
_rtl92e_if_silent_reset(struct net_device * dev)1208 static void _rtl92e_if_silent_reset(struct net_device *dev)
1209 {
1210 struct r8192_priv *priv = rtllib_priv(dev);
1211 u8 reset_times = 0;
1212 int reset_status = 0;
1213 struct rtllib_device *ieee = priv->rtllib;
1214 unsigned long flag;
1215
1216 if (priv->ResetProgress == RESET_TYPE_NORESET) {
1217
1218 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1219
1220 priv->ResetProgress = RESET_TYPE_SILENT;
1221
1222 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1223 if (priv->RFChangeInProgress) {
1224 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1225 goto END;
1226 }
1227 priv->RFChangeInProgress = true;
1228 priv->bResetInProgress = true;
1229 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1230
1231 RESET_START:
1232
1233 mutex_lock(&priv->wx_mutex);
1234
1235 if (priv->rtllib->state == RTLLIB_LINKED)
1236 rtl92e_leisure_ps_leave(dev);
1237
1238 if (priv->up) {
1239 netdev_info(dev, "%s():the driver is not up.\n",
1240 __func__);
1241 mutex_unlock(&priv->wx_mutex);
1242 return;
1243 }
1244 priv->up = 0;
1245
1246 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1247 __func__);
1248 mdelay(1000);
1249 RT_TRACE(COMP_RESET,
1250 "%s():111111111111111111111111======>start to down the driver\n",
1251 __func__);
1252
1253 if (!netif_queue_stopped(dev))
1254 netif_stop_queue(dev);
1255
1256 rtl92e_irq_disable(dev);
1257 del_timer_sync(&priv->watch_dog_timer);
1258 _rtl92e_cancel_deferred_work(priv);
1259 rtl92e_dm_deinit(dev);
1260 rtllib_stop_scan_syncro(ieee);
1261
1262 if (ieee->state == RTLLIB_LINKED) {
1263 mutex_lock(&ieee->wx_mutex);
1264 netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1265 rtllib_stop_send_beacons(priv->rtllib);
1266 del_timer_sync(&ieee->associate_timer);
1267 cancel_delayed_work(&ieee->associate_retry_wq);
1268 rtllib_stop_scan(ieee);
1269 netif_carrier_off(dev);
1270 mutex_unlock(&ieee->wx_mutex);
1271 } else {
1272 netdev_info(dev, "ieee->state is NOT LINKED\n");
1273 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1274 }
1275
1276 rtl92e_dm_backup_state(dev);
1277
1278 mutex_unlock(&priv->wx_mutex);
1279 RT_TRACE(COMP_RESET,
1280 "%s():<==========down process is finished\n",
1281 __func__);
1282
1283 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1284 __func__);
1285 reset_status = _rtl92e_up(dev, true);
1286
1287 RT_TRACE(COMP_RESET,
1288 "%s():<===========up process is finished\n", __func__);
1289 if (reset_status == -1) {
1290 if (reset_times < 3) {
1291 reset_times++;
1292 goto RESET_START;
1293 } else {
1294 netdev_warn(dev, "%s(): Reset Failed\n",
1295 __func__);
1296 }
1297 }
1298
1299 ieee->is_silent_reset = 1;
1300
1301 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1302 priv->RFChangeInProgress = false;
1303 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1304
1305 rtl92e_enable_hw_security_config(dev);
1306
1307 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1308 IW_MODE_INFRA) {
1309 ieee->set_chan(ieee->dev,
1310 ieee->current_network.channel);
1311
1312 schedule_work(&ieee->associate_complete_wq);
1313
1314 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1315 IW_MODE_ADHOC) {
1316 ieee->set_chan(ieee->dev,
1317 ieee->current_network.channel);
1318 ieee->link_change(ieee->dev);
1319
1320 notify_wx_assoc_event(ieee);
1321
1322 rtllib_start_send_beacons(ieee);
1323
1324 netif_carrier_on(ieee->dev);
1325 }
1326
1327 rtl92e_cam_restore(dev);
1328 rtl92e_dm_restore_state(dev);
1329 END:
1330 priv->ResetProgress = RESET_TYPE_NORESET;
1331 priv->reset_count++;
1332
1333 priv->bForcedSilentReset = false;
1334 priv->bResetInProgress = false;
1335
1336 rtl92e_writeb(dev, UFWP, 1);
1337 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1338 priv->reset_count);
1339 }
1340 }
1341
_rtl92e_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)1342 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1343 u32 *TotalRxDataNum)
1344 {
1345 u16 SlotIndex;
1346 u8 i;
1347
1348 *TotalRxBcnNum = 0;
1349 *TotalRxDataNum = 0;
1350
1351 SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1352 (priv->rtllib->LinkDetectInfo.SlotNum);
1353 priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1354 priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1355 priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1356 priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1357 for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1358 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1359 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1360 }
1361 }
1362
_rtl92e_watchdog_wq_cb(void * data)1363 static void _rtl92e_watchdog_wq_cb(void *data)
1364 {
1365 struct r8192_priv *priv = container_of_dwork_rsl(data,
1366 struct r8192_priv, watch_dog_wq);
1367 struct net_device *dev = priv->rtllib->dev;
1368 struct rtllib_device *ieee = priv->rtllib;
1369 enum reset_type ResetType = RESET_TYPE_NORESET;
1370 static u8 check_reset_cnt;
1371 unsigned long flags;
1372 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1373 (&priv->rtllib->PowerSaveControl);
1374 bool bBusyTraffic = false;
1375 bool bHigherBusyTraffic = false;
1376 bool bHigherBusyRxTraffic = false;
1377 bool bEnterPS = false;
1378
1379 if (!priv->up || priv->bHwRadioOff)
1380 return;
1381
1382 if (priv->rtllib->state >= RTLLIB_LINKED) {
1383 if (priv->rtllib->CntAfterLink < 2)
1384 priv->rtllib->CntAfterLink++;
1385 } else {
1386 priv->rtllib->CntAfterLink = 0;
1387 }
1388
1389 rtl92e_dm_watchdog(dev);
1390
1391 if (!rtllib_act_scanning(priv->rtllib, false)) {
1392 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1393 RTLLIB_NOLINK) &&
1394 (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1395 (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1396 if ((ieee->PowerSaveControl.ReturnPoint ==
1397 IPS_CALLBACK_NONE) &&
1398 (!ieee->bNetPromiscuousMode)) {
1399 RT_TRACE(COMP_PS,
1400 "====================>haha: rtl92e_ips_enter()\n");
1401 rtl92e_ips_enter(dev);
1402 }
1403 }
1404 }
1405 if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1406 IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1407 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1408 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1409 bBusyTraffic = true;
1410
1411
1412 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1413 ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1414 bHigherBusyTraffic = true;
1415 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1416 bHigherBusyRxTraffic = true;
1417 else
1418 bHigherBusyRxTraffic = false;
1419 }
1420
1421 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1422 ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1423 (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1424 bEnterPS = false;
1425 else
1426 bEnterPS = true;
1427
1428 if (ieee->current_network.beacon_interval < 95)
1429 bEnterPS = false;
1430
1431 if (bEnterPS)
1432 rtl92e_leisure_ps_enter(dev);
1433 else
1434 rtl92e_leisure_ps_leave(dev);
1435
1436 } else {
1437 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1438 rtl92e_leisure_ps_leave(dev);
1439 }
1440
1441 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1442 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1443 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1444 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1445
1446 ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1447 ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1448
1449 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1450 u32 TotalRxBcnNum = 0;
1451 u32 TotalRxDataNum = 0;
1452
1453 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1454
1455 if ((TotalRxBcnNum + TotalRxDataNum) == 0)
1456 priv->check_roaming_cnt++;
1457 else
1458 priv->check_roaming_cnt = 0;
1459
1460
1461 if (priv->check_roaming_cnt > 0) {
1462 if (ieee->eRFPowerState == eRfOff)
1463 netdev_info(dev, "%s(): RF is off\n", __func__);
1464
1465 netdev_info(dev,
1466 "===>%s(): AP is power off, chan:%d, connect another one\n",
1467 __func__, priv->chan);
1468
1469 ieee->state = RTLLIB_ASSOCIATING;
1470
1471 RemovePeerTS(priv->rtllib,
1472 priv->rtllib->current_network.bssid);
1473 ieee->is_roaming = true;
1474 ieee->is_set_key = false;
1475 ieee->link_change(dev);
1476 if (ieee->LedControlHandler)
1477 ieee->LedControlHandler(ieee->dev,
1478 LED_CTL_START_TO_LINK);
1479
1480 notify_wx_assoc_event(ieee);
1481
1482 if (!(ieee->rtllib_ap_sec_type(ieee) &
1483 (SEC_ALG_CCMP | SEC_ALG_TKIP)))
1484 schedule_delayed_work(
1485 &ieee->associate_procedure_wq, 0);
1486
1487 priv->check_roaming_cnt = 0;
1488 }
1489 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1490 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1491
1492 }
1493
1494 spin_lock_irqsave(&priv->tx_lock, flags);
1495 if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1496 (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1497 ResetType = _rtl92e_if_check_reset(dev);
1498 check_reset_cnt = 3;
1499 }
1500 spin_unlock_irqrestore(&priv->tx_lock, flags);
1501
1502 if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1503 priv->ResetProgress = RESET_TYPE_NORMAL;
1504 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1505 return;
1506 }
1507
1508 if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1509 ResetType == RESET_TYPE_SILENT)))
1510 _rtl92e_if_silent_reset(dev);
1511 priv->force_reset = false;
1512 priv->bForcedSilentReset = false;
1513 priv->bResetInProgress = false;
1514 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1515 }
1516
_rtl92e_watchdog_timer_cb(struct timer_list * t)1517 static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
1518 {
1519 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
1520
1521 schedule_delayed_work(&priv->watch_dog_wq, 0);
1522 mod_timer(&priv->watch_dog_timer, jiffies +
1523 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1524 }
1525
1526 /****************************************************************************
1527 * ---------------------------- NIC TX/RX STUFF---------------------------
1528 ****************************************************************************/
rtl92e_rx_enable(struct net_device * dev)1529 void rtl92e_rx_enable(struct net_device *dev)
1530 {
1531 struct r8192_priv *priv = rtllib_priv(dev);
1532
1533 priv->ops->rx_enable(dev);
1534 }
1535
rtl92e_tx_enable(struct net_device * dev)1536 void rtl92e_tx_enable(struct net_device *dev)
1537 {
1538 struct r8192_priv *priv = rtllib_priv(dev);
1539
1540 priv->ops->tx_enable(dev);
1541
1542 rtllib_reset_queue(priv->rtllib);
1543 }
1544
1545
_rtl92e_free_rx_ring(struct net_device * dev)1546 static void _rtl92e_free_rx_ring(struct net_device *dev)
1547 {
1548 struct r8192_priv *priv = rtllib_priv(dev);
1549 int i, rx_queue_idx;
1550
1551 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1552 rx_queue_idx++) {
1553 for (i = 0; i < priv->rxringcount; i++) {
1554 struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1555
1556 if (!skb)
1557 continue;
1558
1559 dma_unmap_single(&priv->pdev->dev,
1560 *((dma_addr_t *)skb->cb),
1561 priv->rxbuffersize, DMA_FROM_DEVICE);
1562 kfree_skb(skb);
1563 }
1564
1565 dma_free_coherent(&priv->pdev->dev,
1566 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1567 priv->rx_ring[rx_queue_idx],
1568 priv->rx_ring_dma[rx_queue_idx]);
1569 priv->rx_ring[rx_queue_idx] = NULL;
1570 }
1571 }
1572
_rtl92e_free_tx_ring(struct net_device * dev,unsigned int prio)1573 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1574 {
1575 struct r8192_priv *priv = rtllib_priv(dev);
1576 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1577
1578 while (skb_queue_len(&ring->queue)) {
1579 struct tx_desc *entry = &ring->desc[ring->idx];
1580 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1581
1582 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1583 skb->len, DMA_TO_DEVICE);
1584 kfree_skb(skb);
1585 ring->idx = (ring->idx + 1) % ring->entries;
1586 }
1587
1588 dma_free_coherent(&priv->pdev->dev,
1589 sizeof(*ring->desc) * ring->entries, ring->desc,
1590 ring->dma);
1591 ring->desc = NULL;
1592 }
1593
_rtl92e_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1594 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1595 int rate)
1596 {
1597 struct r8192_priv *priv = rtllib_priv(dev);
1598 int ret;
1599 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1600 MAX_DEV_ADDR_SIZE);
1601 u8 queue_index = tcb_desc->queue_index;
1602
1603 if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1604 priv->bResetInProgress) {
1605 kfree_skb(skb);
1606 return;
1607 }
1608
1609 if (queue_index == TXCMD_QUEUE)
1610 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1611 __func__);
1612
1613 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1614 skb_push(skb, priv->rtllib->tx_headroom);
1615 ret = _rtl92e_tx(dev, skb);
1616
1617 if (queue_index != MGNT_QUEUE) {
1618 priv->rtllib->stats.tx_bytes += (skb->len -
1619 priv->rtllib->tx_headroom);
1620 priv->rtllib->stats.tx_packets++;
1621 }
1622
1623 if (ret != 0)
1624 kfree_skb(skb);
1625 }
1626
_rtl92e_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1627 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1628 {
1629 struct r8192_priv *priv = rtllib_priv(dev);
1630 int ret;
1631 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1632 MAX_DEV_ADDR_SIZE);
1633 u8 queue_index = tcb_desc->queue_index;
1634
1635 if (queue_index != TXCMD_QUEUE) {
1636 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1637 !priv->up || priv->bResetInProgress) {
1638 kfree_skb(skb);
1639 return 0;
1640 }
1641 }
1642
1643 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1644 if (queue_index == TXCMD_QUEUE) {
1645 _rtl92e_tx_cmd(dev, skb);
1646 return 0;
1647 }
1648
1649 tcb_desc->RATRIndex = 7;
1650 tcb_desc->bTxDisableRateFallBack = 1;
1651 tcb_desc->bTxUseDriverAssingedRate = 1;
1652 tcb_desc->bTxEnableFwCalcDur = 1;
1653 skb_push(skb, priv->rtllib->tx_headroom);
1654 ret = _rtl92e_tx(dev, skb);
1655 if (ret != 0)
1656 kfree_skb(skb);
1657 return ret;
1658 }
1659
_rtl92e_tx_isr(struct net_device * dev,int prio)1660 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1661 {
1662 struct r8192_priv *priv = rtllib_priv(dev);
1663
1664 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1665
1666 while (skb_queue_len(&ring->queue)) {
1667 struct tx_desc *entry = &ring->desc[ring->idx];
1668 struct sk_buff *skb;
1669
1670 if (prio != BEACON_QUEUE) {
1671 if (entry->OWN)
1672 return;
1673 ring->idx = (ring->idx + 1) % ring->entries;
1674 }
1675
1676 skb = __skb_dequeue(&ring->queue);
1677 dma_unmap_single(&priv->pdev->dev, entry->TxBuffAddr,
1678 skb->len, DMA_TO_DEVICE);
1679
1680 kfree_skb(skb);
1681 }
1682 if (prio != BEACON_QUEUE)
1683 tasklet_schedule(&priv->irq_tx_tasklet);
1684 }
1685
_rtl92e_tx_cmd(struct net_device * dev,struct sk_buff * skb)1686 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1687 {
1688 struct r8192_priv *priv = rtllib_priv(dev);
1689 struct rtl8192_tx_ring *ring;
1690 struct tx_desc_cmd *entry;
1691 unsigned int idx;
1692 struct cb_desc *tcb_desc;
1693 unsigned long flags;
1694
1695 spin_lock_irqsave(&priv->irq_th_lock, flags);
1696 ring = &priv->tx_ring[TXCMD_QUEUE];
1697
1698 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1699 entry = (struct tx_desc_cmd *)&ring->desc[idx];
1700
1701 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1702
1703 priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1704
1705 __skb_queue_tail(&ring->queue, skb);
1706 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1707 }
1708
_rtl92e_tx(struct net_device * dev,struct sk_buff * skb)1709 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1710 {
1711 struct r8192_priv *priv = rtllib_priv(dev);
1712 struct rtl8192_tx_ring *ring;
1713 unsigned long flags;
1714 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1715 MAX_DEV_ADDR_SIZE);
1716 struct tx_desc *pdesc = NULL;
1717 struct rtllib_hdr_1addr *header = NULL;
1718 u16 fc = 0, type = 0;
1719 u8 *pda_addr = NULL;
1720 int idx;
1721 u32 fwinfo_size = 0;
1722
1723 if (priv->bdisable_nic) {
1724 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1725 __func__);
1726 return skb->len;
1727 }
1728
1729 priv->rtllib->bAwakePktSent = true;
1730
1731 fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1732
1733 header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1734 fc = le16_to_cpu(header->frame_ctl);
1735 type = WLAN_FC_GET_TYPE(fc);
1736 pda_addr = header->addr1;
1737
1738 if (is_broadcast_ether_addr(pda_addr))
1739 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1740 else if (is_multicast_ether_addr(pda_addr))
1741 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1742 else
1743 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1744
1745 spin_lock_irqsave(&priv->irq_th_lock, flags);
1746 ring = &priv->tx_ring[tcb_desc->queue_index];
1747 if (tcb_desc->queue_index != BEACON_QUEUE)
1748 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1749 else
1750 idx = 0;
1751
1752 pdesc = &ring->desc[idx];
1753 if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1754 netdev_warn(dev,
1755 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1756 tcb_desc->queue_index, ring->idx, idx, skb->len,
1757 skb_queue_len(&ring->queue));
1758 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1759 return skb->len;
1760 }
1761
1762 if (type == RTLLIB_FTYPE_DATA) {
1763 if (priv->rtllib->LedControlHandler)
1764 priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1765 }
1766 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1767 __skb_queue_tail(&ring->queue, skb);
1768 pdesc->OWN = 1;
1769 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1770 netif_trans_update(dev);
1771
1772 rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1773 return 0;
1774 }
1775
_rtl92e_alloc_rx_ring(struct net_device * dev)1776 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1777 {
1778 struct r8192_priv *priv = rtllib_priv(dev);
1779 struct rx_desc *entry = NULL;
1780 int i, rx_queue_idx;
1781
1782 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1783 priv->rx_ring[rx_queue_idx] = dma_alloc_coherent(&priv->pdev->dev,
1784 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1785 &priv->rx_ring_dma[rx_queue_idx],
1786 GFP_ATOMIC);
1787 if (!priv->rx_ring[rx_queue_idx] ||
1788 (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1789 netdev_warn(dev, "Cannot allocate RX ring\n");
1790 return -ENOMEM;
1791 }
1792
1793 priv->rx_idx[rx_queue_idx] = 0;
1794
1795 for (i = 0; i < priv->rxringcount; i++) {
1796 struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1797 dma_addr_t *mapping;
1798
1799 entry = &priv->rx_ring[rx_queue_idx][i];
1800 if (!skb)
1801 return 0;
1802 skb->dev = dev;
1803 priv->rx_buf[rx_queue_idx][i] = skb;
1804 mapping = (dma_addr_t *)skb->cb;
1805 *mapping = dma_map_single(&priv->pdev->dev,
1806 skb_tail_pointer_rsl(skb),
1807 priv->rxbuffersize, DMA_FROM_DEVICE);
1808 if (dma_mapping_error(&priv->pdev->dev, *mapping)) {
1809 dev_kfree_skb_any(skb);
1810 return -1;
1811 }
1812 entry->BufferAddress = *mapping;
1813
1814 entry->Length = priv->rxbuffersize;
1815 entry->OWN = 1;
1816 }
1817
1818 if (entry)
1819 entry->EOR = 1;
1820 }
1821 return 0;
1822 }
1823
_rtl92e_alloc_tx_ring(struct net_device * dev,unsigned int prio,unsigned int entries)1824 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1825 unsigned int entries)
1826 {
1827 struct r8192_priv *priv = rtllib_priv(dev);
1828 struct tx_desc *ring;
1829 dma_addr_t dma;
1830 int i;
1831
1832 ring = dma_alloc_coherent(&priv->pdev->dev, sizeof(*ring) * entries,
1833 &dma, GFP_ATOMIC);
1834 if (!ring || (unsigned long)ring & 0xFF) {
1835 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1836 return -ENOMEM;
1837 }
1838
1839 priv->tx_ring[prio].desc = ring;
1840 priv->tx_ring[prio].dma = dma;
1841 priv->tx_ring[prio].idx = 0;
1842 priv->tx_ring[prio].entries = entries;
1843 skb_queue_head_init(&priv->tx_ring[prio].queue);
1844
1845 for (i = 0; i < entries; i++)
1846 ring[i].NextDescAddress =
1847 (u32)dma + ((i + 1) % entries) *
1848 sizeof(*ring);
1849
1850 return 0;
1851 }
1852
_rtl92e_pci_initdescring(struct net_device * dev)1853 static short _rtl92e_pci_initdescring(struct net_device *dev)
1854 {
1855 u32 ret;
1856 int i;
1857 struct r8192_priv *priv = rtllib_priv(dev);
1858
1859 ret = _rtl92e_alloc_rx_ring(dev);
1860 if (ret)
1861 return ret;
1862
1863 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1864 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1865 if (ret)
1866 goto err_free_rings;
1867 }
1868
1869 return 0;
1870
1871 err_free_rings:
1872 _rtl92e_free_rx_ring(dev);
1873 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1874 if (priv->tx_ring[i].desc)
1875 _rtl92e_free_tx_ring(dev, i);
1876 return 1;
1877 }
1878
rtl92e_reset_desc_ring(struct net_device * dev)1879 void rtl92e_reset_desc_ring(struct net_device *dev)
1880 {
1881 struct r8192_priv *priv = rtllib_priv(dev);
1882 int i, rx_queue_idx;
1883 unsigned long flags = 0;
1884
1885 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1886 if (priv->rx_ring[rx_queue_idx]) {
1887 struct rx_desc *entry = NULL;
1888
1889 for (i = 0; i < priv->rxringcount; i++) {
1890 entry = &priv->rx_ring[rx_queue_idx][i];
1891 entry->OWN = 1;
1892 }
1893 priv->rx_idx[rx_queue_idx] = 0;
1894 }
1895 }
1896
1897 spin_lock_irqsave(&priv->irq_th_lock, flags);
1898 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1899 if (priv->tx_ring[i].desc) {
1900 struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1901
1902 while (skb_queue_len(&ring->queue)) {
1903 struct tx_desc *entry = &ring->desc[ring->idx];
1904 struct sk_buff *skb =
1905 __skb_dequeue(&ring->queue);
1906
1907 dma_unmap_single(&priv->pdev->dev,
1908 entry->TxBuffAddr, skb->len,
1909 DMA_TO_DEVICE);
1910 kfree_skb(skb);
1911 ring->idx = (ring->idx + 1) % ring->entries;
1912 }
1913 ring->idx = 0;
1914 }
1915 }
1916 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1917 }
1918
rtl92e_update_rx_pkt_timestamp(struct net_device * dev,struct rtllib_rx_stats * stats)1919 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1920 struct rtllib_rx_stats *stats)
1921 {
1922 struct r8192_priv *priv = rtllib_priv(dev);
1923
1924 if (stats->bIsAMPDU && !stats->bFirstMPDU)
1925 stats->mac_time = priv->LastRxDescTSF;
1926 else
1927 priv->LastRxDescTSF = stats->mac_time;
1928 }
1929
rtl92e_translate_to_dbm(struct r8192_priv * priv,u8 signal_strength_index)1930 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1931 {
1932 long signal_power;
1933
1934 signal_power = (long)((signal_strength_index + 1) >> 1);
1935 signal_power -= 95;
1936
1937 return signal_power;
1938 }
1939
1940
rtl92e_update_rx_statistics(struct r8192_priv * priv,struct rtllib_rx_stats * pprevious_stats)1941 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1942 struct rtllib_rx_stats *pprevious_stats)
1943 {
1944 int weighting = 0;
1945
1946
1947 if (priv->stats.recv_signal_power == 0)
1948 priv->stats.recv_signal_power =
1949 pprevious_stats->RecvSignalPower;
1950
1951 if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1952 weighting = 5;
1953 else if (pprevious_stats->RecvSignalPower <
1954 priv->stats.recv_signal_power)
1955 weighting = (-5);
1956 priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1957 pprevious_stats->RecvSignalPower +
1958 weighting) / 6;
1959 }
1960
rtl92e_rx_db_to_percent(s8 antpower)1961 u8 rtl92e_rx_db_to_percent(s8 antpower)
1962 {
1963 if ((antpower <= -100) || (antpower >= 20))
1964 return 0;
1965 else if (antpower >= 0)
1966 return 100;
1967 else
1968 return 100 + antpower;
1969
1970 } /* QueryRxPwrPercentage */
1971
rtl92e_evm_db_to_percent(s8 value)1972 u8 rtl92e_evm_db_to_percent(s8 value)
1973 {
1974 s8 ret_val = clamp(-value, 0, 33) * 3;
1975
1976 if (ret_val == 99)
1977 ret_val = 100;
1978
1979 return ret_val;
1980 }
1981
rtl92e_copy_mpdu_stats(struct rtllib_rx_stats * psrc_stats,struct rtllib_rx_stats * ptarget_stats)1982 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
1983 struct rtllib_rx_stats *ptarget_stats)
1984 {
1985 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
1986 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
1987 }
1988
1989
1990
_rtl92e_rx_normal(struct net_device * dev)1991 static void _rtl92e_rx_normal(struct net_device *dev)
1992 {
1993 struct r8192_priv *priv = rtllib_priv(dev);
1994 struct rtllib_hdr_1addr *rtllib_hdr = NULL;
1995 bool unicast_packet = false;
1996 bool bLedBlinking = true;
1997 u16 fc = 0, type = 0;
1998 u32 skb_len = 0;
1999 int rx_queue_idx = RX_MPDU_QUEUE;
2000
2001 struct rtllib_rx_stats stats = {
2002 .signal = 0,
2003 .noise = (u8)-98,
2004 .rate = 0,
2005 .freq = RTLLIB_24GHZ_BAND,
2006 };
2007 unsigned int count = priv->rxringcount;
2008
2009 stats.nic_type = NIC_8192E;
2010
2011 while (count--) {
2012 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2013 [priv->rx_idx[rx_queue_idx]];
2014 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2015 [priv->rx_idx[rx_queue_idx]];
2016 struct sk_buff *new_skb;
2017
2018 if (pdesc->OWN)
2019 return;
2020 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2021 pdesc, skb))
2022 goto done;
2023 new_skb = dev_alloc_skb(priv->rxbuffersize);
2024 /* if allocation of new skb failed - drop current packet
2025 * and reuse skb
2026 */
2027 if (unlikely(!new_skb))
2028 goto done;
2029
2030 dma_unmap_single(&priv->pdev->dev, *((dma_addr_t *)skb->cb),
2031 priv->rxbuffersize, DMA_FROM_DEVICE);
2032
2033 skb_put(skb, pdesc->Length);
2034 skb_reserve(skb, stats.RxDrvInfoSize +
2035 stats.RxBufShift);
2036 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2037 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2038 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2039 /* unicast packet */
2040 unicast_packet = true;
2041 }
2042 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2043 type = WLAN_FC_GET_TYPE(fc);
2044 if (type == RTLLIB_FTYPE_MGMT)
2045 bLedBlinking = false;
2046
2047 if (bLedBlinking)
2048 if (priv->rtllib->LedControlHandler)
2049 priv->rtllib->LedControlHandler(dev,
2050 LED_CTL_RX);
2051
2052 if (stats.bCRC) {
2053 if (type != RTLLIB_FTYPE_MGMT)
2054 priv->stats.rxdatacrcerr++;
2055 else
2056 priv->stats.rxmgmtcrcerr++;
2057 }
2058
2059 skb_len = skb->len;
2060
2061 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2062 dev_kfree_skb_any(skb);
2063 } else {
2064 priv->stats.rxok++;
2065 if (unicast_packet)
2066 priv->stats.rxbytesunicast += skb_len;
2067 }
2068
2069 skb = new_skb;
2070 skb->dev = dev;
2071
2072 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2073 skb;
2074 *((dma_addr_t *)skb->cb) = dma_map_single(&priv->pdev->dev,
2075 skb_tail_pointer_rsl(skb),
2076 priv->rxbuffersize, DMA_FROM_DEVICE);
2077 if (dma_mapping_error(&priv->pdev->dev, *((dma_addr_t *)skb->cb))) {
2078 dev_kfree_skb_any(skb);
2079 return;
2080 }
2081 done:
2082 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2083 pdesc->OWN = 1;
2084 pdesc->Length = priv->rxbuffersize;
2085 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount - 1)
2086 pdesc->EOR = 1;
2087 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2088 priv->rxringcount;
2089 }
2090
2091 }
2092
_rtl92e_tx_resume(struct net_device * dev)2093 static void _rtl92e_tx_resume(struct net_device *dev)
2094 {
2095 struct r8192_priv *priv = rtllib_priv(dev);
2096 struct rtllib_device *ieee = priv->rtllib;
2097 struct sk_buff *skb;
2098 int queue_index;
2099
2100 for (queue_index = BK_QUEUE;
2101 queue_index < MAX_QUEUE_SIZE; queue_index++) {
2102 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2103 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2104 skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2105 ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2106 }
2107 }
2108 }
2109
_rtl92e_irq_tx_tasklet(struct tasklet_struct * t)2110 static void _rtl92e_irq_tx_tasklet(struct tasklet_struct *t)
2111 {
2112 struct r8192_priv *priv = from_tasklet(priv, t, irq_tx_tasklet);
2113
2114 _rtl92e_tx_resume(priv->rtllib->dev);
2115 }
2116
_rtl92e_irq_rx_tasklet(struct tasklet_struct * t)2117 static void _rtl92e_irq_rx_tasklet(struct tasklet_struct *t)
2118 {
2119 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
2120
2121 _rtl92e_rx_normal(priv->rtllib->dev);
2122
2123 rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2124 rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2125 }
2126
2127 /****************************************************************************
2128 * ---------------------------- NIC START/CLOSE STUFF---------------------------
2129 ****************************************************************************/
_rtl92e_cancel_deferred_work(struct r8192_priv * priv)2130 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2131 {
2132 cancel_delayed_work_sync(&priv->watch_dog_wq);
2133 cancel_delayed_work_sync(&priv->update_beacon_wq);
2134 cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2135 cancel_work_sync(&priv->reset_wq);
2136 cancel_work_sync(&priv->qos_activate);
2137 }
2138
_rtl92e_up(struct net_device * dev,bool is_silent_reset)2139 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2140 {
2141 if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2142 return -1;
2143 return 0;
2144 }
2145
_rtl92e_open(struct net_device * dev)2146 static int _rtl92e_open(struct net_device *dev)
2147 {
2148 struct r8192_priv *priv = rtllib_priv(dev);
2149 int ret;
2150
2151 mutex_lock(&priv->wx_mutex);
2152 ret = _rtl92e_try_up(dev);
2153 mutex_unlock(&priv->wx_mutex);
2154 return ret;
2155
2156 }
2157
_rtl92e_try_up(struct net_device * dev)2158 static int _rtl92e_try_up(struct net_device *dev)
2159 {
2160 struct r8192_priv *priv = rtllib_priv(dev);
2161
2162 if (priv->up == 1)
2163 return -1;
2164 return _rtl92e_up(dev, false);
2165 }
2166
2167
_rtl92e_close(struct net_device * dev)2168 static int _rtl92e_close(struct net_device *dev)
2169 {
2170 struct r8192_priv *priv = rtllib_priv(dev);
2171 int ret;
2172
2173 if ((rtllib_act_scanning(priv->rtllib, false)) &&
2174 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2175 rtllib_stop_scan(priv->rtllib);
2176 }
2177
2178 mutex_lock(&priv->wx_mutex);
2179
2180 ret = _rtl92e_down(dev, true);
2181
2182 mutex_unlock(&priv->wx_mutex);
2183
2184 return ret;
2185
2186 }
2187
_rtl92e_down(struct net_device * dev,bool shutdownrf)2188 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2189 {
2190 if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2191 return -1;
2192
2193 return 0;
2194 }
2195
rtl92e_commit(struct net_device * dev)2196 void rtl92e_commit(struct net_device *dev)
2197 {
2198 struct r8192_priv *priv = rtllib_priv(dev);
2199
2200 if (priv->up == 0)
2201 return;
2202 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2203 rtl92e_irq_disable(dev);
2204 priv->ops->stop_adapter(dev, true);
2205 _rtl92e_up(dev, false);
2206 }
2207
_rtl92e_restart(void * data)2208 static void _rtl92e_restart(void *data)
2209 {
2210 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2211 reset_wq);
2212 struct net_device *dev = priv->rtllib->dev;
2213
2214 mutex_lock(&priv->wx_mutex);
2215
2216 rtl92e_commit(dev);
2217
2218 mutex_unlock(&priv->wx_mutex);
2219 }
2220
_rtl92e_set_multicast(struct net_device * dev)2221 static void _rtl92e_set_multicast(struct net_device *dev)
2222 {
2223 struct r8192_priv *priv = rtllib_priv(dev);
2224 short promisc;
2225
2226 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2227 priv->promisc = promisc;
2228
2229 }
2230
2231
_rtl92e_set_mac_adr(struct net_device * dev,void * mac)2232 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2233 {
2234 struct r8192_priv *priv = rtllib_priv(dev);
2235 struct sockaddr *addr = mac;
2236
2237 mutex_lock(&priv->wx_mutex);
2238
2239 ether_addr_copy(dev->dev_addr, addr->sa_data);
2240
2241 schedule_work(&priv->reset_wq);
2242 mutex_unlock(&priv->wx_mutex);
2243
2244 return 0;
2245 }
2246
_rtl92e_irq(int irq,void * netdev)2247 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2248 {
2249 struct net_device *dev = netdev;
2250 struct r8192_priv *priv = rtllib_priv(dev);
2251 unsigned long flags;
2252 u32 inta;
2253 u32 intb;
2254
2255 intb = 0;
2256
2257 if (priv->irq_enabled == 0)
2258 goto done;
2259
2260 spin_lock_irqsave(&priv->irq_th_lock, flags);
2261
2262 priv->ops->interrupt_recognized(dev, &inta, &intb);
2263 priv->stats.shints++;
2264
2265 if (!inta) {
2266 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2267 goto done;
2268 }
2269
2270 if (inta == 0xffff) {
2271 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2272 goto done;
2273 }
2274
2275 priv->stats.ints++;
2276
2277 if (!netif_running(dev)) {
2278 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2279 goto done;
2280 }
2281
2282 if (inta & IMR_TBDOK) {
2283 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2284 priv->stats.txbeaconokint++;
2285 }
2286
2287 if (inta & IMR_TBDER) {
2288 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2289 priv->stats.txbeaconerr++;
2290 }
2291
2292 if (inta & IMR_BDOK)
2293 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2294
2295 if (inta & IMR_MGNTDOK) {
2296 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2297 priv->stats.txmanageokint++;
2298 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2299 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2300 if (priv->rtllib->ack_tx_to_ieee) {
2301 if (_rtl92e_is_tx_queue_empty(dev)) {
2302 priv->rtllib->ack_tx_to_ieee = 0;
2303 rtllib_ps_tx_ack(priv->rtllib, 1);
2304 }
2305 }
2306 spin_lock_irqsave(&priv->irq_th_lock, flags);
2307 }
2308
2309 if (inta & IMR_COMDOK) {
2310 priv->stats.txcmdpktokint++;
2311 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2312 }
2313
2314 if (inta & IMR_HIGHDOK)
2315 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2316
2317 if (inta & IMR_ROK) {
2318 priv->stats.rxint++;
2319 priv->InterruptLog.nIMR_ROK++;
2320 tasklet_schedule(&priv->irq_rx_tasklet);
2321 }
2322
2323 if (inta & IMR_BcnInt) {
2324 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2325 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2326 }
2327
2328 if (inta & IMR_RDU) {
2329 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2330 priv->stats.rxrdu++;
2331 rtl92e_writel(dev, INTA_MASK,
2332 rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2333 tasklet_schedule(&priv->irq_rx_tasklet);
2334 }
2335
2336 if (inta & IMR_RXFOVW) {
2337 RT_TRACE(COMP_INTR, "rx overflow !\n");
2338 priv->stats.rxoverflow++;
2339 tasklet_schedule(&priv->irq_rx_tasklet);
2340 }
2341
2342 if (inta & IMR_TXFOVW)
2343 priv->stats.txoverflow++;
2344
2345 if (inta & IMR_BKDOK) {
2346 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2347 priv->stats.txbkokint++;
2348 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2349 _rtl92e_tx_isr(dev, BK_QUEUE);
2350 }
2351
2352 if (inta & IMR_BEDOK) {
2353 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2354 priv->stats.txbeokint++;
2355 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2356 _rtl92e_tx_isr(dev, BE_QUEUE);
2357 }
2358
2359 if (inta & IMR_VIDOK) {
2360 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2361 priv->stats.txviokint++;
2362 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2363 _rtl92e_tx_isr(dev, VI_QUEUE);
2364 }
2365
2366 if (inta & IMR_VODOK) {
2367 priv->stats.txvookint++;
2368 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2369 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2370 _rtl92e_tx_isr(dev, VO_QUEUE);
2371 }
2372
2373 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2374
2375 done:
2376
2377 return IRQ_HANDLED;
2378 }
2379
2380
2381
2382 /****************************************************************************
2383 * ---------------------------- PCI_STUFF---------------------------
2384 ****************************************************************************/
2385 static const struct net_device_ops rtl8192_netdev_ops = {
2386 .ndo_open = _rtl92e_open,
2387 .ndo_stop = _rtl92e_close,
2388 .ndo_tx_timeout = _rtl92e_tx_timeout,
2389 .ndo_set_rx_mode = _rtl92e_set_multicast,
2390 .ndo_set_mac_address = _rtl92e_set_mac_adr,
2391 .ndo_validate_addr = eth_validate_addr,
2392 .ndo_start_xmit = rtllib_xmit,
2393 };
2394
_rtl92e_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)2395 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2396 const struct pci_device_id *id)
2397 {
2398 unsigned long ioaddr = 0;
2399 struct net_device *dev = NULL;
2400 struct r8192_priv *priv = NULL;
2401 struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2402 unsigned long pmem_start, pmem_len, pmem_flags;
2403 int err = -ENOMEM;
2404 u8 revision_id;
2405
2406 RT_TRACE(COMP_INIT, "Configuring chip resources");
2407
2408 if (pci_enable_device(pdev)) {
2409 dev_err(&pdev->dev, "Failed to enable PCI device");
2410 return -EIO;
2411 }
2412
2413 pci_set_master(pdev);
2414
2415 if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2416 if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
2417 dev_info(&pdev->dev,
2418 "Unable to obtain 32bit DMA for consistent allocations\n");
2419 goto err_pci_disable;
2420 }
2421 }
2422 dev = alloc_rtllib(sizeof(struct r8192_priv));
2423 if (!dev)
2424 goto err_pci_disable;
2425
2426 err = -ENODEV;
2427
2428 pci_set_drvdata(pdev, dev);
2429 SET_NETDEV_DEV(dev, &pdev->dev);
2430 priv = rtllib_priv(dev);
2431 priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2432 priv->pdev = pdev;
2433 priv->rtllib->pdev = pdev;
2434 if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2435 (pdev->subsystem_device == 0x3304))
2436 priv->rtllib->bSupportRemoteWakeUp = 1;
2437 else
2438 priv->rtllib->bSupportRemoteWakeUp = 0;
2439
2440 pmem_start = pci_resource_start(pdev, 1);
2441 pmem_len = pci_resource_len(pdev, 1);
2442 pmem_flags = pci_resource_flags(pdev, 1);
2443
2444 if (!(pmem_flags & IORESOURCE_MEM)) {
2445 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2446 goto err_rel_rtllib;
2447 }
2448
2449 dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2450 pmem_start);
2451 if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2452 netdev_err(dev, "request_mem_region failed!");
2453 goto err_rel_rtllib;
2454 }
2455
2456
2457 ioaddr = (unsigned long)ioremap(pmem_start, pmem_len);
2458 if (ioaddr == (unsigned long)NULL) {
2459 netdev_err(dev, "ioremap failed!");
2460 goto err_rel_mem;
2461 }
2462
2463 dev->mem_start = ioaddr;
2464 dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2465
2466 pci_read_config_byte(pdev, 0x08, &revision_id);
2467 /* If the revisionid is 0x10, the device uses rtl8192se. */
2468 if (pdev->device == 0x8192 && revision_id == 0x10)
2469 goto err_unmap;
2470
2471 priv->ops = ops;
2472
2473 if (!rtl92e_check_adapter(pdev, dev))
2474 goto err_unmap;
2475
2476 dev->irq = pdev->irq;
2477 priv->irq = 0;
2478
2479 dev->netdev_ops = &rtl8192_netdev_ops;
2480
2481 dev->wireless_handlers = &r8192_wx_handlers_def;
2482 dev->ethtool_ops = &rtl819x_ethtool_ops;
2483
2484 dev->type = ARPHRD_ETHER;
2485 dev->watchdog_timeo = HZ * 3;
2486
2487 if (dev_alloc_name(dev, ifname) < 0) {
2488 RT_TRACE(COMP_INIT,
2489 "Oops: devname already taken! Trying wlan%%d...\n");
2490 dev_alloc_name(dev, ifname);
2491 }
2492
2493 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2494 if (_rtl92e_init(dev) != 0) {
2495 netdev_warn(dev, "Initialization failed");
2496 goto err_free_irq;
2497 }
2498
2499 netif_carrier_off(dev);
2500 netif_stop_queue(dev);
2501
2502 if (register_netdev(dev))
2503 goto err_free_irq;
2504 RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2505
2506 if (priv->polling_timer_on == 0)
2507 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
2508
2509 RT_TRACE(COMP_INIT, "Driver probe completed\n");
2510 return 0;
2511
2512 err_free_irq:
2513 free_irq(dev->irq, dev);
2514 priv->irq = 0;
2515 err_unmap:
2516 iounmap((void __iomem *)ioaddr);
2517 err_rel_mem:
2518 release_mem_region(pmem_start, pmem_len);
2519 err_rel_rtllib:
2520 free_rtllib(dev);
2521 err_pci_disable:
2522 pci_disable_device(pdev);
2523 return err;
2524 }
2525
_rtl92e_pci_disconnect(struct pci_dev * pdev)2526 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2527 {
2528 struct net_device *dev = pci_get_drvdata(pdev);
2529 struct r8192_priv *priv;
2530 u32 i;
2531
2532 if (dev) {
2533 unregister_netdev(dev);
2534
2535 priv = rtllib_priv(dev);
2536
2537 del_timer_sync(&priv->gpio_polling_timer);
2538 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
2539 priv->polling_timer_on = 0;
2540 _rtl92e_down(dev, true);
2541 rtl92e_dm_deinit(dev);
2542 vfree(priv->pFirmware);
2543 priv->pFirmware = NULL;
2544 _rtl92e_free_rx_ring(dev);
2545 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2546 _rtl92e_free_tx_ring(dev, i);
2547
2548 if (priv->irq) {
2549 dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2550 free_irq(dev->irq, dev);
2551 priv->irq = 0;
2552 }
2553 free_rtllib(dev);
2554
2555 if (dev->mem_start != 0) {
2556 iounmap((void __iomem *)dev->mem_start);
2557 release_mem_region(pci_resource_start(pdev, 1),
2558 pci_resource_len(pdev, 1));
2559 }
2560 } else {
2561 priv = rtllib_priv(dev);
2562 }
2563
2564 pci_disable_device(pdev);
2565 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2566 }
2567
rtl92e_enable_nic(struct net_device * dev)2568 bool rtl92e_enable_nic(struct net_device *dev)
2569 {
2570 bool init_status = true;
2571 struct r8192_priv *priv = rtllib_priv(dev);
2572 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2573 (&priv->rtllib->PowerSaveControl);
2574
2575 if (!priv->up) {
2576 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2577 priv->bdisable_nic = false;
2578 return false;
2579 }
2580
2581 RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2582 priv->bfirst_init = true;
2583 init_status = priv->ops->initialize_adapter(dev);
2584 if (!init_status) {
2585 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2586 priv->bdisable_nic = false;
2587 return false;
2588 }
2589 RT_TRACE(COMP_INIT, "start adapter finished\n");
2590 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2591 priv->bfirst_init = false;
2592
2593 rtl92e_irq_enable(dev);
2594 priv->bdisable_nic = false;
2595 RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2596 return init_status;
2597 }
2598
rtl92e_disable_nic(struct net_device * dev)2599 bool rtl92e_disable_nic(struct net_device *dev)
2600 {
2601 struct r8192_priv *priv = rtllib_priv(dev);
2602 u8 tmp_state = 0;
2603
2604 RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2605 priv->bdisable_nic = true;
2606 tmp_state = priv->rtllib->state;
2607 rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2608 priv->rtllib->state = tmp_state;
2609 _rtl92e_cancel_deferred_work(priv);
2610 rtl92e_irq_disable(dev);
2611
2612 priv->ops->stop_adapter(dev, false);
2613 RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2614
2615 return true;
2616 }
2617
2618 module_pci_driver(rtl8192_pci_driver);
2619
rtl92e_check_rfctrl_gpio_timer(struct timer_list * t)2620 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
2621 {
2622 struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
2623
2624 priv->polling_timer_on = 1;
2625
2626 schedule_delayed_work(&priv->gpio_change_rf_wq, 0);
2627
2628 mod_timer(&priv->gpio_polling_timer, jiffies +
2629 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2630 }
2631
2632 /***************************************************************************
2633 * ------------------- module init / exit stubs ----------------
2634 ***************************************************************************/
2635 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2636 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2637 MODULE_VERSION(DRV_VERSION);
2638 MODULE_LICENSE("GPL");
2639 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2640 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2641 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2642
2643 module_param(ifname, charp, 0644);
2644 module_param(hwwep, int, 0644);
2645 module_param(channels, int, 0644);
2646
2647 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2648 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2649 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2650