1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * Based on the r8180 driver, which is:
5 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * The full GNU General Public License is included in this distribution in the
16 * file called LICENSE.
17 *
18 * Contact Information:
19 * wlanfae <wlanfae@realtek.com>
20 ******************************************************************************/
21 #include <linux/uaccess.h>
22 #include <linux/pci.h>
23 #include <linux/vmalloc.h>
24 #include <linux/ieee80211.h>
25 #include "rtl_core.h"
26 #include "r8192E_phy.h"
27 #include "r8192E_phyreg.h"
28 #include "r8190P_rtl8256.h"
29 #include "r8192E_cmdpkt.h"
30
31 #include "rtl_wx.h"
32 #include "rtl_dm.h"
33
34 #include "rtl_pm.h"
35
36 int hwwep = 1;
37 static int channels = 0x3fff;
38 static char *ifname = "wlan%d";
39
40
41 static struct rtl819x_ops rtl819xp_ops = {
42 .nic_type = NIC_8192E,
43 .get_eeprom_size = rtl92e_get_eeprom_size,
44 .init_adapter_variable = rtl92e_init_variables,
45 .initialize_adapter = rtl92e_start_adapter,
46 .link_change = rtl92e_link_change,
47 .tx_fill_descriptor = rtl92e_fill_tx_desc,
48 .tx_fill_cmd_descriptor = rtl92e_fill_tx_cmd_desc,
49 .rx_query_status_descriptor = rtl92e_get_rx_stats,
50 .rx_command_packet_handler = NULL,
51 .stop_adapter = rtl92e_stop_adapter,
52 .update_ratr_table = rtl92e_update_ratr_table,
53 .irq_enable = rtl92e_enable_irq,
54 .irq_disable = rtl92e_disable_irq,
55 .irq_clear = rtl92e_clear_irq,
56 .rx_enable = rtl92e_enable_rx,
57 .tx_enable = rtl92e_enable_tx,
58 .interrupt_recognized = rtl92e_ack_irq,
59 .TxCheckStuckHandler = rtl92e_is_tx_stuck,
60 .RxCheckStuckHandler = rtl92e_is_rx_stuck,
61 };
62
63 static struct pci_device_id rtl8192_pci_id_tbl[] = {
64 {RTL_PCI_DEVICE(0x10ec, 0x8192, rtl819xp_ops)},
65 {RTL_PCI_DEVICE(0x07aa, 0x0044, rtl819xp_ops)},
66 {RTL_PCI_DEVICE(0x07aa, 0x0047, rtl819xp_ops)},
67 {}
68 };
69
70 MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
71
72 static int _rtl92e_pci_probe(struct pci_dev *pdev,
73 const struct pci_device_id *id);
74 static void _rtl92e_pci_disconnect(struct pci_dev *pdev);
75 static irqreturn_t _rtl92e_irq(int irq, void *netdev);
76
77 static struct pci_driver rtl8192_pci_driver = {
78 .name = DRV_NAME, /* Driver name */
79 .id_table = rtl8192_pci_id_tbl, /* PCI_ID table */
80 .probe = _rtl92e_pci_probe, /* probe fn */
81 .remove = _rtl92e_pci_disconnect, /* remove fn */
82 .suspend = rtl92e_suspend, /* PM suspend fn */
83 .resume = rtl92e_resume, /* PM resume fn */
84 };
85
86 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
87 static void _rtl92e_watchdog_wq_cb(void *data);
88 static void _rtl92e_watchdog_timer_cb(unsigned long data);
89 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
90 int rate);
91 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
92 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb);
93 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb);
94 static short _rtl92e_pci_initdescring(struct net_device *dev);
95 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv);
96 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv);
97 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv);
98 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset);
99 static int _rtl92e_try_up(struct net_device *dev);
100 static int _rtl92e_down(struct net_device *dev, bool shutdownrf);
101 static void _rtl92e_restart(void *data);
102
103 /****************************************************************************
104 -----------------------------IO STUFF-------------------------
105 *****************************************************************************/
106
rtl92e_readb(struct net_device * dev,int x)107 u8 rtl92e_readb(struct net_device *dev, int x)
108 {
109 return 0xff & readb((u8 __iomem *)dev->mem_start + x);
110 }
111
rtl92e_readl(struct net_device * dev,int x)112 u32 rtl92e_readl(struct net_device *dev, int x)
113 {
114 return readl((u8 __iomem *)dev->mem_start + x);
115 }
116
rtl92e_readw(struct net_device * dev,int x)117 u16 rtl92e_readw(struct net_device *dev, int x)
118 {
119 return readw((u8 __iomem *)dev->mem_start + x);
120 }
121
rtl92e_writeb(struct net_device * dev,int x,u8 y)122 void rtl92e_writeb(struct net_device *dev, int x, u8 y)
123 {
124 writeb(y, (u8 __iomem *)dev->mem_start + x);
125
126 udelay(20);
127 }
128
rtl92e_writel(struct net_device * dev,int x,u32 y)129 void rtl92e_writel(struct net_device *dev, int x, u32 y)
130 {
131 writel(y, (u8 __iomem *)dev->mem_start + x);
132
133 udelay(20);
134 }
135
rtl92e_writew(struct net_device * dev,int x,u16 y)136 void rtl92e_writew(struct net_device *dev, int x, u16 y)
137 {
138 writew(y, (u8 __iomem *)dev->mem_start + x);
139
140 udelay(20);
141 }
142
143 /****************************************************************************
144 -----------------------------GENERAL FUNCTION-------------------------
145 *****************************************************************************/
rtl92e_set_rf_state(struct net_device * dev,enum rt_rf_power_state StateToSet,RT_RF_CHANGE_SOURCE ChangeSource)146 bool rtl92e_set_rf_state(struct net_device *dev,
147 enum rt_rf_power_state StateToSet,
148 RT_RF_CHANGE_SOURCE ChangeSource)
149 {
150 struct r8192_priv *priv = rtllib_priv(dev);
151 struct rtllib_device *ieee = priv->rtllib;
152 bool bActionAllowed = false;
153 bool bConnectBySSID = false;
154 enum rt_rf_power_state rtState;
155 u16 RFWaitCounter = 0;
156 unsigned long flag;
157
158 RT_TRACE((COMP_PS | COMP_RF),
159 "===>rtl92e_set_rf_state(): StateToSet(%d)\n", StateToSet);
160
161 while (true) {
162 spin_lock_irqsave(&priv->rf_ps_lock, flag);
163 if (priv->RFChangeInProgress) {
164 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
165 RT_TRACE((COMP_PS | COMP_RF),
166 "rtl92e_set_rf_state(): RF Change in progress! Wait to set..StateToSet(%d).\n",
167 StateToSet);
168
169 while (priv->RFChangeInProgress) {
170 RFWaitCounter++;
171 RT_TRACE((COMP_PS | COMP_RF),
172 "rtl92e_set_rf_state(): Wait 1 ms (%d times)...\n",
173 RFWaitCounter);
174 mdelay(1);
175
176 if (RFWaitCounter > 100) {
177 netdev_warn(dev,
178 "%s(): Timeout waiting for RF change.\n",
179 __func__);
180 return false;
181 }
182 }
183 } else {
184 priv->RFChangeInProgress = true;
185 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
186 break;
187 }
188 }
189
190 rtState = priv->rtllib->eRFPowerState;
191
192 switch (StateToSet) {
193 case eRfOn:
194 priv->rtllib->RfOffReason &= (~ChangeSource);
195
196 if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
197 priv->bHwRadioOff = false;
198
199 if (!priv->rtllib->RfOffReason) {
200 priv->rtllib->RfOffReason = 0;
201 bActionAllowed = true;
202
203
204 if (rtState == eRfOff &&
205 ChangeSource >= RF_CHANGE_BY_HW)
206 bConnectBySSID = true;
207 } else {
208 RT_TRACE((COMP_PS | COMP_RF),
209 "rtl92e_set_rf_state - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
210 priv->rtllib->RfOffReason, ChangeSource);
211 }
212
213 break;
214
215 case eRfOff:
216
217 if ((priv->rtllib->iw_mode == IW_MODE_INFRA) ||
218 (priv->rtllib->iw_mode == IW_MODE_ADHOC)) {
219 if ((priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) ||
220 (ChangeSource > RF_CHANGE_BY_IPS)) {
221 if (ieee->state == RTLLIB_LINKED)
222 priv->blinked_ingpio = true;
223 else
224 priv->blinked_ingpio = false;
225 rtllib_MgntDisconnect(priv->rtllib,
226 WLAN_REASON_DISASSOC_STA_HAS_LEFT);
227 }
228 }
229 if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
230 priv->bHwRadioOff = true;
231 priv->rtllib->RfOffReason |= ChangeSource;
232 bActionAllowed = true;
233 break;
234
235 case eRfSleep:
236 priv->rtllib->RfOffReason |= ChangeSource;
237 bActionAllowed = true;
238 break;
239
240 default:
241 break;
242 }
243
244 if (bActionAllowed) {
245 RT_TRACE((COMP_PS | COMP_RF),
246 "rtl92e_set_rf_state(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
247 StateToSet, priv->rtllib->RfOffReason);
248 PHY_SetRFPowerState(dev, StateToSet);
249 if (StateToSet == eRfOn) {
250
251 if (bConnectBySSID && priv->blinked_ingpio) {
252 queue_delayed_work_rsl(ieee->wq,
253 &ieee->associate_procedure_wq, 0);
254 priv->blinked_ingpio = false;
255 }
256 }
257 } else {
258 RT_TRACE((COMP_PS | COMP_RF),
259 "rtl92e_set_rf_state(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
260 StateToSet, ChangeSource, priv->rtllib->RfOffReason);
261 }
262
263 spin_lock_irqsave(&priv->rf_ps_lock, flag);
264 priv->RFChangeInProgress = false;
265 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
266
267 RT_TRACE((COMP_PS | COMP_RF), "<===rtl92e_set_rf_state()\n");
268 return bActionAllowed;
269 }
270
_rtl92e_check_nic_enough_desc(struct net_device * dev,int prio)271 static short _rtl92e_check_nic_enough_desc(struct net_device *dev, int prio)
272 {
273 struct r8192_priv *priv = rtllib_priv(dev);
274 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
275
276 if (ring->entries - skb_queue_len(&ring->queue) >= 2)
277 return 1;
278 return 0;
279 }
280
_rtl92e_tx_timeout(struct net_device * dev)281 static void _rtl92e_tx_timeout(struct net_device *dev)
282 {
283 struct r8192_priv *priv = rtllib_priv(dev);
284
285 schedule_work(&priv->reset_wq);
286 netdev_info(dev, "TXTIMEOUT");
287 }
288
rtl92e_irq_enable(struct net_device * dev)289 void rtl92e_irq_enable(struct net_device *dev)
290 {
291 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
292
293 priv->irq_enabled = 1;
294
295 priv->ops->irq_enable(dev);
296 }
297
rtl92e_irq_disable(struct net_device * dev)298 void rtl92e_irq_disable(struct net_device *dev)
299 {
300 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
301
302 priv->ops->irq_disable(dev);
303
304 priv->irq_enabled = 0;
305 }
306
_rtl92e_set_chan(struct net_device * dev,short ch)307 static void _rtl92e_set_chan(struct net_device *dev, short ch)
308 {
309 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
310
311 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
312 if (priv->chan_forced)
313 return;
314
315 priv->chan = ch;
316
317 if (priv->rf_set_chan)
318 priv->rf_set_chan(dev, priv->chan);
319 }
320
_rtl92e_update_cap(struct net_device * dev,u16 cap)321 static void _rtl92e_update_cap(struct net_device *dev, u16 cap)
322 {
323 struct r8192_priv *priv = rtllib_priv(dev);
324 struct rtllib_network *net = &priv->rtllib->current_network;
325 bool ShortPreamble;
326
327 if (cap & WLAN_CAPABILITY_SHORT_PREAMBLE) {
328 if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
329 ShortPreamble = true;
330 priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
331 RT_TRACE(COMP_DBG,
332 "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
333 __func__);
334 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
335 (unsigned char *)&ShortPreamble);
336 }
337 } else {
338 if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
339 ShortPreamble = false;
340 priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
341 RT_TRACE(COMP_DBG,
342 "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
343 __func__);
344 priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
345 (unsigned char *)&ShortPreamble);
346 }
347 }
348
349 if (net->mode & (IEEE_G|IEEE_N_24G)) {
350 u8 slot_time_val;
351 u8 CurSlotTime = priv->slot_time;
352
353 if ((cap & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
354 (!priv->rtllib->pHTInfo->bCurrentRT2RTLongSlotTime)) {
355 if (CurSlotTime != SHORT_SLOT_TIME) {
356 slot_time_val = SHORT_SLOT_TIME;
357 priv->rtllib->SetHwRegHandler(dev,
358 HW_VAR_SLOT_TIME, &slot_time_val);
359 }
360 } else {
361 if (CurSlotTime != NON_SHORT_SLOT_TIME) {
362 slot_time_val = NON_SHORT_SLOT_TIME;
363 priv->rtllib->SetHwRegHandler(dev,
364 HW_VAR_SLOT_TIME, &slot_time_val);
365 }
366 }
367 }
368 }
369
370 static struct rtllib_qos_parameters def_qos_parameters = {
371 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
372 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
373 {2, 2, 2, 2},
374 {0, 0, 0, 0},
375 {0, 0, 0, 0}
376 };
377
_rtl92e_update_beacon(void * data)378 static void _rtl92e_update_beacon(void *data)
379 {
380 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
381 update_beacon_wq.work);
382 struct net_device *dev = priv->rtllib->dev;
383 struct rtllib_device *ieee = priv->rtllib;
384 struct rtllib_network *net = &ieee->current_network;
385
386 if (ieee->pHTInfo->bCurrentHTSupport)
387 HT_update_self_and_peer_setting(ieee, net);
388 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
389 net->bssht.bdRT2RTLongSlotTime;
390 ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
391 _rtl92e_update_cap(dev, net->capability);
392 }
393
_rtl92e_qos_activate(void * data)394 static void _rtl92e_qos_activate(void *data)
395 {
396 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
397 qos_activate);
398 struct net_device *dev = priv->rtllib->dev;
399 int i;
400
401 mutex_lock(&priv->mutex);
402 if (priv->rtllib->state != RTLLIB_LINKED)
403 goto success;
404 RT_TRACE(COMP_QOS,
405 "qos active process with associate response received\n");
406
407 for (i = 0; i < QOS_QUEUE_NUM; i++)
408 priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
409
410
411 success:
412 mutex_unlock(&priv->mutex);
413 }
414
_rtl92e_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct rtllib_network * network)415 static int _rtl92e_qos_handle_probe_response(struct r8192_priv *priv,
416 int active_network,
417 struct rtllib_network *network)
418 {
419 int ret = 0;
420 u32 size = sizeof(struct rtllib_qos_parameters);
421
422 if (priv->rtllib->state != RTLLIB_LINKED)
423 return ret;
424
425 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
426 return ret;
427
428 if (network->flags & NETWORK_HAS_QOS_MASK) {
429 if (active_network &&
430 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
431 network->qos_data.active = network->qos_data.supported;
432
433 if ((network->qos_data.active == 1) && (active_network == 1) &&
434 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
435 (network->qos_data.old_param_count !=
436 network->qos_data.param_count)) {
437 network->qos_data.old_param_count =
438 network->qos_data.param_count;
439 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
440 queue_work_rsl(priv->priv_wq, &priv->qos_activate);
441 RT_TRACE(COMP_QOS,
442 "QoS parameters change call qos_activate\n");
443 }
444 } else {
445 memcpy(&priv->rtllib->current_network.qos_data.parameters,
446 &def_qos_parameters, size);
447
448 if ((network->qos_data.active == 1) && (active_network == 1)) {
449 queue_work_rsl(priv->priv_wq, &priv->qos_activate);
450 RT_TRACE(COMP_QOS,
451 "QoS was disabled call qos_activate\n");
452 }
453 network->qos_data.active = 0;
454 network->qos_data.supported = 0;
455 }
456
457 return 0;
458 }
459
_rtl92e_handle_beacon(struct net_device * dev,struct rtllib_beacon * beacon,struct rtllib_network * network)460 static int _rtl92e_handle_beacon(struct net_device *dev,
461 struct rtllib_beacon *beacon,
462 struct rtllib_network *network)
463 {
464 struct r8192_priv *priv = rtllib_priv(dev);
465
466 _rtl92e_qos_handle_probe_response(priv, 1, network);
467
468 queue_delayed_work_rsl(priv->priv_wq, &priv->update_beacon_wq, 0);
469 return 0;
470
471 }
472
_rtl92e_qos_assoc_resp(struct r8192_priv * priv,struct rtllib_network * network)473 static int _rtl92e_qos_assoc_resp(struct r8192_priv *priv,
474 struct rtllib_network *network)
475 {
476 unsigned long flags;
477 u32 size = sizeof(struct rtllib_qos_parameters);
478 int set_qos_param = 0;
479
480 if ((priv == NULL) || (network == NULL))
481 return 0;
482
483 if (priv->rtllib->state != RTLLIB_LINKED)
484 return 0;
485
486 if (priv->rtllib->iw_mode != IW_MODE_INFRA)
487 return 0;
488
489 spin_lock_irqsave(&priv->rtllib->lock, flags);
490 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
491 memcpy(&priv->rtllib->current_network.qos_data.parameters,
492 &network->qos_data.parameters,
493 sizeof(struct rtllib_qos_parameters));
494 priv->rtllib->current_network.qos_data.active = 1;
495 priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
496 set_qos_param = 1;
497 priv->rtllib->current_network.qos_data.old_param_count =
498 priv->rtllib->current_network.qos_data.param_count;
499 priv->rtllib->current_network.qos_data.param_count =
500 network->qos_data.param_count;
501 } else {
502 memcpy(&priv->rtllib->current_network.qos_data.parameters,
503 &def_qos_parameters, size);
504 priv->rtllib->current_network.qos_data.active = 0;
505 priv->rtllib->current_network.qos_data.supported = 0;
506 set_qos_param = 1;
507 }
508
509 spin_unlock_irqrestore(&priv->rtllib->lock, flags);
510
511 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
512 network->flags, priv->rtllib->current_network.qos_data.active);
513 if (set_qos_param == 1) {
514 rtl92e_dm_init_edca_turbo(priv->rtllib->dev);
515 queue_work_rsl(priv->priv_wq, &priv->qos_activate);
516 }
517 return 0;
518 }
519
_rtl92e_handle_assoc_response(struct net_device * dev,struct rtllib_assoc_response_frame * resp,struct rtllib_network * network)520 static int _rtl92e_handle_assoc_response(struct net_device *dev,
521 struct rtllib_assoc_response_frame *resp,
522 struct rtllib_network *network)
523 {
524 struct r8192_priv *priv = rtllib_priv(dev);
525
526 _rtl92e_qos_assoc_resp(priv, network);
527 return 0;
528 }
529
_rtl92e_prepare_beacon(struct r8192_priv * priv)530 static void _rtl92e_prepare_beacon(struct r8192_priv *priv)
531 {
532 struct net_device *dev = priv->rtllib->dev;
533 struct sk_buff *pskb = NULL, *pnewskb = NULL;
534 struct cb_desc *tcb_desc = NULL;
535 struct rtl8192_tx_ring *ring = NULL;
536 struct tx_desc *pdesc = NULL;
537
538 ring = &priv->tx_ring[BEACON_QUEUE];
539 pskb = __skb_dequeue(&ring->queue);
540 kfree_skb(pskb);
541
542 pnewskb = rtllib_get_beacon(priv->rtllib);
543 if (!pnewskb)
544 return;
545
546 tcb_desc = (struct cb_desc *)(pnewskb->cb + 8);
547 tcb_desc->queue_index = BEACON_QUEUE;
548 tcb_desc->data_rate = 2;
549 tcb_desc->RATRIndex = 7;
550 tcb_desc->bTxDisableRateFallBack = 1;
551 tcb_desc->bTxUseDriverAssingedRate = 1;
552 skb_push(pnewskb, priv->rtllib->tx_headroom);
553
554 pdesc = &ring->desc[0];
555 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
556 __skb_queue_tail(&ring->queue, pnewskb);
557 pdesc->OWN = 1;
558 }
559
_rtl92e_stop_beacon(struct net_device * dev)560 static void _rtl92e_stop_beacon(struct net_device *dev)
561 {
562 }
563
rtl92e_config_rate(struct net_device * dev,u16 * rate_config)564 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config)
565 {
566 struct r8192_priv *priv = rtllib_priv(dev);
567 struct rtllib_network *net;
568 u8 i = 0, basic_rate = 0;
569
570 net = &priv->rtllib->current_network;
571
572 for (i = 0; i < net->rates_len; i++) {
573 basic_rate = net->rates[i] & 0x7f;
574 switch (basic_rate) {
575 case MGN_1M:
576 *rate_config |= RRSR_1M;
577 break;
578 case MGN_2M:
579 *rate_config |= RRSR_2M;
580 break;
581 case MGN_5_5M:
582 *rate_config |= RRSR_5_5M;
583 break;
584 case MGN_11M:
585 *rate_config |= RRSR_11M;
586 break;
587 case MGN_6M:
588 *rate_config |= RRSR_6M;
589 break;
590 case MGN_9M:
591 *rate_config |= RRSR_9M;
592 break;
593 case MGN_12M:
594 *rate_config |= RRSR_12M;
595 break;
596 case MGN_18M:
597 *rate_config |= RRSR_18M;
598 break;
599 case MGN_24M:
600 *rate_config |= RRSR_24M;
601 break;
602 case MGN_36M:
603 *rate_config |= RRSR_36M;
604 break;
605 case MGN_48M:
606 *rate_config |= RRSR_48M;
607 break;
608 case MGN_54M:
609 *rate_config |= RRSR_54M;
610 break;
611 }
612 }
613
614 for (i = 0; i < net->rates_ex_len; i++) {
615 basic_rate = net->rates_ex[i] & 0x7f;
616 switch (basic_rate) {
617 case MGN_1M:
618 *rate_config |= RRSR_1M;
619 break;
620 case MGN_2M:
621 *rate_config |= RRSR_2M;
622 break;
623 case MGN_5_5M:
624 *rate_config |= RRSR_5_5M;
625 break;
626 case MGN_11M:
627 *rate_config |= RRSR_11M;
628 break;
629 case MGN_6M:
630 *rate_config |= RRSR_6M;
631 break;
632 case MGN_9M:
633 *rate_config |= RRSR_9M;
634 break;
635 case MGN_12M:
636 *rate_config |= RRSR_12M;
637 break;
638 case MGN_18M:
639 *rate_config |= RRSR_18M;
640 break;
641 case MGN_24M:
642 *rate_config |= RRSR_24M;
643 break;
644 case MGN_36M:
645 *rate_config |= RRSR_36M;
646 break;
647 case MGN_48M:
648 *rate_config |= RRSR_48M;
649 break;
650 case MGN_54M:
651 *rate_config |= RRSR_54M;
652 break;
653 }
654 }
655 }
656
_rtl92e_refresh_support_rate(struct r8192_priv * priv)657 static void _rtl92e_refresh_support_rate(struct r8192_priv *priv)
658 {
659 struct rtllib_device *ieee = priv->rtllib;
660
661 if (ieee->mode == WIRELESS_MODE_N_24G ||
662 ieee->mode == WIRELESS_MODE_N_5G) {
663 memcpy(ieee->Regdot11HTOperationalRateSet,
664 ieee->RegHTSuppRateSet, 16);
665 memcpy(ieee->Regdot11TxHTOperationalRateSet,
666 ieee->RegHTSuppRateSet, 16);
667
668 } else {
669 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
670 }
671 }
672
_rtl92e_get_supported_wireless_mode(struct net_device * dev)673 static u8 _rtl92e_get_supported_wireless_mode(struct net_device *dev)
674 {
675 struct r8192_priv *priv = rtllib_priv(dev);
676 u8 ret = 0;
677
678 switch (priv->rf_chip) {
679 case RF_8225:
680 case RF_8256:
681 case RF_6052:
682 case RF_PSEUDO_11N:
683 ret = (WIRELESS_MODE_N_24G|WIRELESS_MODE_G | WIRELESS_MODE_B);
684 break;
685 case RF_8258:
686 ret = (WIRELESS_MODE_A | WIRELESS_MODE_N_5G);
687 break;
688 default:
689 ret = WIRELESS_MODE_B;
690 break;
691 }
692 return ret;
693 }
694
rtl92e_set_wireless_mode(struct net_device * dev,u8 wireless_mode)695 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode)
696 {
697 struct r8192_priv *priv = rtllib_priv(dev);
698 u8 bSupportMode = _rtl92e_get_supported_wireless_mode(dev);
699
700 if ((wireless_mode == WIRELESS_MODE_AUTO) ||
701 ((wireless_mode & bSupportMode) == 0)) {
702 if (bSupportMode & WIRELESS_MODE_N_24G) {
703 wireless_mode = WIRELESS_MODE_N_24G;
704 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
705 wireless_mode = WIRELESS_MODE_N_5G;
706 } else if ((bSupportMode & WIRELESS_MODE_A)) {
707 wireless_mode = WIRELESS_MODE_A;
708 } else if ((bSupportMode & WIRELESS_MODE_G)) {
709 wireless_mode = WIRELESS_MODE_G;
710 } else if ((bSupportMode & WIRELESS_MODE_B)) {
711 wireless_mode = WIRELESS_MODE_B;
712 } else {
713 netdev_info(dev,
714 "%s(): Unsupported mode requested. Fallback to 802.11b\n",
715 __func__);
716 wireless_mode = WIRELESS_MODE_B;
717 }
718 }
719
720 if ((wireless_mode & (WIRELESS_MODE_B | WIRELESS_MODE_G)) ==
721 (WIRELESS_MODE_G | WIRELESS_MODE_B))
722 wireless_mode = WIRELESS_MODE_G;
723
724 priv->rtllib->mode = wireless_mode;
725
726 if ((wireless_mode == WIRELESS_MODE_N_24G) ||
727 (wireless_mode == WIRELESS_MODE_N_5G)) {
728 priv->rtllib->pHTInfo->bEnableHT = 1;
729 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 1\n",
730 __func__, wireless_mode);
731 } else {
732 priv->rtllib->pHTInfo->bEnableHT = 0;
733 RT_TRACE(COMP_DBG, "%s(), wireless_mode:%x, bEnableHT = 0\n",
734 __func__, wireless_mode);
735 }
736
737 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
738 _rtl92e_refresh_support_rate(priv);
739 }
740
_rtl92e_sta_up(struct net_device * dev,bool is_silent_reset)741 static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
742 {
743 struct r8192_priv *priv = rtllib_priv(dev);
744 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
745 (&(priv->rtllib->PowerSaveControl));
746 bool init_status = true;
747
748 priv->bDriverIsGoingToUnload = false;
749 priv->bdisable_nic = false;
750
751 priv->up = 1;
752 priv->rtllib->ieee_up = 1;
753
754 priv->up_first_time = 0;
755 RT_TRACE(COMP_INIT, "Bringing up iface");
756 priv->bfirst_init = true;
757 init_status = priv->ops->initialize_adapter(dev);
758 if (!init_status) {
759 netdev_err(dev, "%s(): Initialization failed!\n", __func__);
760 priv->bfirst_init = false;
761 return -1;
762 }
763
764 RT_TRACE(COMP_INIT, "start adapter finished\n");
765 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
766 priv->bfirst_init = false;
767
768 if (priv->polling_timer_on == 0)
769 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
770
771 if (priv->rtllib->state != RTLLIB_LINKED)
772 rtllib_softmac_start_protocol(priv->rtllib, 0);
773 rtllib_reset_queue(priv->rtllib);
774 _rtl92e_watchdog_timer_cb((unsigned long)dev);
775
776 if (!netif_queue_stopped(dev))
777 netif_start_queue(dev);
778 else
779 netif_wake_queue(dev);
780
781 return 0;
782 }
783
_rtl92e_sta_down(struct net_device * dev,bool shutdownrf)784 static int _rtl92e_sta_down(struct net_device *dev, bool shutdownrf)
785 {
786 struct r8192_priv *priv = rtllib_priv(dev);
787 unsigned long flags = 0;
788 u8 RFInProgressTimeOut = 0;
789
790 if (priv->up == 0)
791 return -1;
792
793 if (priv->rtllib->rtllib_ips_leave != NULL)
794 priv->rtllib->rtllib_ips_leave(dev);
795
796 if (priv->rtllib->state == RTLLIB_LINKED)
797 rtl92e_leisure_ps_leave(dev);
798
799 priv->bDriverIsGoingToUnload = true;
800 priv->up = 0;
801 priv->rtllib->ieee_up = 0;
802 priv->bfirst_after_down = true;
803 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
804 if (!netif_queue_stopped(dev))
805 netif_stop_queue(dev);
806
807 priv->rtllib->wpa_ie_len = 0;
808 kfree(priv->rtllib->wpa_ie);
809 priv->rtllib->wpa_ie = NULL;
810 rtl92e_cam_reset(dev);
811 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
812 rtl92e_irq_disable(dev);
813
814 del_timer_sync(&priv->watch_dog_timer);
815 _rtl92e_cancel_deferred_work(priv);
816 cancel_delayed_work(&priv->rtllib->hw_wakeup_wq);
817
818 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
819 spin_lock_irqsave(&priv->rf_ps_lock, flags);
820 while (priv->RFChangeInProgress) {
821 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
822 if (RFInProgressTimeOut > 100) {
823 spin_lock_irqsave(&priv->rf_ps_lock, flags);
824 break;
825 }
826 RT_TRACE(COMP_DBG,
827 "===>%s():RF is in progress, need to wait until rf change is done.\n",
828 __func__);
829 mdelay(1);
830 RFInProgressTimeOut++;
831 spin_lock_irqsave(&priv->rf_ps_lock, flags);
832 }
833 priv->RFChangeInProgress = true;
834 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
835 priv->ops->stop_adapter(dev, false);
836 spin_lock_irqsave(&priv->rf_ps_lock, flags);
837 priv->RFChangeInProgress = false;
838 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
839 udelay(100);
840 memset(&priv->rtllib->current_network, 0,
841 offsetof(struct rtllib_network, list));
842 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
843
844 return 0;
845 }
846
_rtl92e_init_priv_handler(struct net_device * dev)847 static void _rtl92e_init_priv_handler(struct net_device *dev)
848 {
849 struct r8192_priv *priv = rtllib_priv(dev);
850
851 priv->rtllib->softmac_hard_start_xmit = _rtl92e_hard_start_xmit;
852 priv->rtllib->set_chan = _rtl92e_set_chan;
853 priv->rtllib->link_change = priv->ops->link_change;
854 priv->rtllib->softmac_data_hard_start_xmit = _rtl92e_hard_data_xmit;
855 priv->rtllib->check_nic_enough_desc = _rtl92e_check_nic_enough_desc;
856 priv->rtllib->handle_assoc_response = _rtl92e_handle_assoc_response;
857 priv->rtllib->handle_beacon = _rtl92e_handle_beacon;
858 priv->rtllib->SetWirelessMode = rtl92e_set_wireless_mode;
859 priv->rtllib->LeisurePSLeave = rtl92e_leisure_ps_leave;
860 priv->rtllib->SetBWModeHandler = rtl92e_set_bw_mode;
861 priv->rf_set_chan = rtl92e_set_channel;
862
863 priv->rtllib->start_send_beacons = rtl92e_start_beacon;
864 priv->rtllib->stop_send_beacons = _rtl92e_stop_beacon;
865
866 priv->rtllib->sta_wake_up = rtl92e_hw_wakeup;
867 priv->rtllib->enter_sleep_state = rtl92e_enter_sleep;
868 priv->rtllib->ps_is_queue_empty = _rtl92e_is_tx_queue_empty;
869
870 priv->rtllib->GetNmodeSupportBySecCfg = rtl92e_get_nmode_support_by_sec;
871 priv->rtllib->GetHalfNmodeSupportByAPsHandler =
872 rtl92e_is_halfn_supported_by_ap;
873
874 priv->rtllib->SetHwRegHandler = rtl92e_set_reg;
875 priv->rtllib->AllowAllDestAddrHandler = rtl92e_set_monitor_mode;
876 priv->rtllib->SetFwCmdHandler = NULL;
877 priv->rtllib->InitialGainHandler = rtl92e_init_gain;
878 priv->rtllib->rtllib_ips_leave_wq = rtl92e_rtllib_ips_leave_wq;
879 priv->rtllib->rtllib_ips_leave = rtl92e_rtllib_ips_leave;
880
881 priv->rtllib->LedControlHandler = NULL;
882 priv->rtllib->UpdateBeaconInterruptHandler = NULL;
883
884 priv->rtllib->ScanOperationBackupHandler = rtl92e_scan_op_backup;
885 }
886
_rtl92e_init_priv_constant(struct net_device * dev)887 static void _rtl92e_init_priv_constant(struct net_device *dev)
888 {
889 struct r8192_priv *priv = rtllib_priv(dev);
890 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
891 &(priv->rtllib->PowerSaveControl);
892
893 pPSC->RegMaxLPSAwakeIntvl = 5;
894 }
895
896
_rtl92e_init_priv_variable(struct net_device * dev)897 static void _rtl92e_init_priv_variable(struct net_device *dev)
898 {
899 struct r8192_priv *priv = rtllib_priv(dev);
900 u8 i;
901
902 priv->AcmMethod = eAcmWay2_SW;
903 priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
904 priv->rtllib->status = 0;
905 priv->polling_timer_on = 0;
906 priv->up_first_time = 1;
907 priv->blinked_ingpio = false;
908 priv->bDriverIsGoingToUnload = false;
909 priv->being_init_adapter = false;
910 priv->initialized_at_probe = false;
911 priv->bdisable_nic = false;
912 priv->bfirst_init = false;
913 priv->txringcount = 64;
914 priv->rxbuffersize = 9100;
915 priv->rxringcount = MAX_RX_COUNT;
916 priv->irq_enabled = 0;
917 priv->chan = 1;
918 priv->RegChannelPlan = 0xf;
919 priv->rtllib->mode = WIRELESS_MODE_AUTO;
920 priv->rtllib->iw_mode = IW_MODE_INFRA;
921 priv->rtllib->bNetPromiscuousMode = false;
922 priv->rtllib->IntelPromiscuousModeInfo.bPromiscuousOn = false;
923 priv->rtllib->IntelPromiscuousModeInfo.bFilterSourceStationFrame =
924 false;
925 priv->rtllib->ieee_up = 0;
926 priv->retry_rts = DEFAULT_RETRY_RTS;
927 priv->retry_data = DEFAULT_RETRY_DATA;
928 priv->rtllib->rts = DEFAULT_RTS_THRESHOLD;
929 priv->rtllib->rate = 110;
930 priv->rtllib->short_slot = 1;
931 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
932 priv->bcck_in_ch14 = false;
933 priv->bfsync_processing = false;
934 priv->CCKPresentAttentuation = 0;
935 priv->rfa_txpowertrackingindex = 0;
936 priv->rfc_txpowertrackingindex = 0;
937 priv->CckPwEnl = 6;
938 priv->ScanDelay = 50;
939 priv->ResetProgress = RESET_TYPE_NORESET;
940 priv->bForcedSilentReset = false;
941 priv->bDisableNormalResetCheck = false;
942 priv->force_reset = false;
943 memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
944
945 memset(&priv->InterruptLog, 0, sizeof(struct log_int_8190));
946 priv->RxCounter = 0;
947 priv->rtllib->wx_set_enc = 0;
948 priv->bHwRadioOff = false;
949 priv->RegRfOff = false;
950 priv->isRFOff = false;
951 priv->bInPowerSaveMode = false;
952 priv->rtllib->RfOffReason = 0;
953 priv->RFChangeInProgress = false;
954 priv->bHwRfOffAction = 0;
955 priv->SetRFPowerStateInProgress = false;
956 priv->rtllib->PowerSaveControl.bInactivePs = true;
957 priv->rtllib->PowerSaveControl.bIPSModeBackup = false;
958 priv->rtllib->PowerSaveControl.bLeisurePs = true;
959 priv->rtllib->PowerSaveControl.bFwCtrlLPS = false;
960 priv->rtllib->LPSDelayCnt = 0;
961 priv->rtllib->sta_sleep = LPS_IS_WAKE;
962 priv->rtllib->eRFPowerState = eRfOn;
963
964 priv->rtllib->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
965 priv->rtllib->iw_mode = IW_MODE_INFRA;
966 priv->rtllib->active_scan = 1;
967 priv->rtllib->be_scan_inprogress = false;
968 priv->rtllib->modulation = RTLLIB_CCK_MODULATION |
969 RTLLIB_OFDM_MODULATION;
970 priv->rtllib->host_encrypt = 1;
971 priv->rtllib->host_decrypt = 1;
972
973 priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
974
975 priv->card_type = PCI;
976
977 priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
978 if (!priv->pFirmware)
979 netdev_err(dev,
980 "rtl8192e: Unable to allocate space for firmware\n");
981
982 skb_queue_head_init(&priv->skb_queue);
983
984 for (i = 0; i < MAX_QUEUE_SIZE; i++)
985 skb_queue_head_init(&priv->rtllib->skb_waitQ[i]);
986 for (i = 0; i < MAX_QUEUE_SIZE; i++)
987 skb_queue_head_init(&priv->rtllib->skb_aggQ[i]);
988 }
989
_rtl92e_init_priv_lock(struct r8192_priv * priv)990 static void _rtl92e_init_priv_lock(struct r8192_priv *priv)
991 {
992 spin_lock_init(&priv->tx_lock);
993 spin_lock_init(&priv->irq_th_lock);
994 spin_lock_init(&priv->rf_ps_lock);
995 spin_lock_init(&priv->ps_lock);
996 sema_init(&priv->wx_sem, 1);
997 sema_init(&priv->rf_sem, 1);
998 mutex_init(&priv->mutex);
999 }
1000
_rtl92e_init_priv_task(struct net_device * dev)1001 static void _rtl92e_init_priv_task(struct net_device *dev)
1002 {
1003 struct r8192_priv *priv = rtllib_priv(dev);
1004
1005 priv->priv_wq = create_workqueue(DRV_NAME);
1006 INIT_WORK_RSL(&priv->reset_wq, (void *)_rtl92e_restart, dev);
1007 INIT_WORK_RSL(&priv->rtllib->ips_leave_wq, (void *)rtl92e_ips_leave_wq,
1008 dev);
1009 INIT_DELAYED_WORK_RSL(&priv->watch_dog_wq,
1010 (void *)_rtl92e_watchdog_wq_cb, dev);
1011 INIT_DELAYED_WORK_RSL(&priv->txpower_tracking_wq,
1012 (void *)rtl92e_dm_txpower_tracking_wq, dev);
1013 INIT_DELAYED_WORK_RSL(&priv->rfpath_check_wq,
1014 (void *)rtl92e_dm_rf_pathcheck_wq, dev);
1015 INIT_DELAYED_WORK_RSL(&priv->update_beacon_wq,
1016 (void *)_rtl92e_update_beacon, dev);
1017 INIT_WORK_RSL(&priv->qos_activate, (void *)_rtl92e_qos_activate, dev);
1018 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_wakeup_wq,
1019 (void *) rtl92e_hw_wakeup_wq, dev);
1020 INIT_DELAYED_WORK_RSL(&priv->rtllib->hw_sleep_wq,
1021 (void *) rtl92e_hw_sleep_wq, dev);
1022 tasklet_init(&priv->irq_rx_tasklet,
1023 (void(*)(unsigned long))_rtl92e_irq_rx_tasklet,
1024 (unsigned long)priv);
1025 tasklet_init(&priv->irq_tx_tasklet,
1026 (void(*)(unsigned long))_rtl92e_irq_tx_tasklet,
1027 (unsigned long)priv);
1028 tasklet_init(&priv->irq_prepare_beacon_tasklet,
1029 (void(*)(unsigned long))_rtl92e_prepare_beacon,
1030 (unsigned long)priv);
1031 }
1032
_rtl92e_get_channel_map(struct net_device * dev)1033 static short _rtl92e_get_channel_map(struct net_device *dev)
1034 {
1035 int i;
1036
1037 struct r8192_priv *priv = rtllib_priv(dev);
1038
1039 if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
1040 && (priv->rf_chip != RF_6052)) {
1041 netdev_err(dev, "%s: unknown rf chip, can't set channel map\n",
1042 __func__);
1043 return -1;
1044 }
1045
1046 if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
1047 netdev_info(dev,
1048 "rtl819x_init:Error channel plan! Set to default.\n");
1049 priv->ChannelPlan = COUNTRY_CODE_FCC;
1050 }
1051 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
1052 dot11d_init(priv->rtllib);
1053 Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
1054 for (i = 1; i <= 11; i++)
1055 (priv->rtllib->active_channel_map)[i] = 1;
1056 (priv->rtllib->active_channel_map)[12] = 2;
1057 (priv->rtllib->active_channel_map)[13] = 2;
1058
1059 return 0;
1060 }
1061
_rtl92e_init(struct net_device * dev)1062 static short _rtl92e_init(struct net_device *dev)
1063 {
1064 struct r8192_priv *priv = rtllib_priv(dev);
1065
1066 memset(&(priv->stats), 0, sizeof(struct rt_stats));
1067
1068 _rtl92e_init_priv_handler(dev);
1069 _rtl92e_init_priv_constant(dev);
1070 _rtl92e_init_priv_variable(dev);
1071 _rtl92e_init_priv_lock(priv);
1072 _rtl92e_init_priv_task(dev);
1073 priv->ops->get_eeprom_size(dev);
1074 priv->ops->init_adapter_variable(dev);
1075 _rtl92e_get_channel_map(dev);
1076
1077 rtl92e_dm_init(dev);
1078
1079 setup_timer(&priv->watch_dog_timer,
1080 _rtl92e_watchdog_timer_cb,
1081 (unsigned long) dev);
1082
1083 setup_timer(&priv->gpio_polling_timer,
1084 rtl92e_check_rfctrl_gpio_timer,
1085 (unsigned long)dev);
1086
1087 rtl92e_irq_disable(dev);
1088 if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
1089 netdev_err(dev, "Error allocating IRQ %d", dev->irq);
1090 return -1;
1091 }
1092
1093 priv->irq = dev->irq;
1094 RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
1095
1096 if (_rtl92e_pci_initdescring(dev) != 0) {
1097 netdev_err(dev, "Endopoints initialization failed");
1098 free_irq(dev->irq, dev);
1099 return -1;
1100 }
1101
1102 return 0;
1103 }
1104
1105 /***************************************************************************
1106 -------------------------------WATCHDOG STUFF---------------------------
1107 ***************************************************************************/
_rtl92e_is_tx_queue_empty(struct net_device * dev)1108 static short _rtl92e_is_tx_queue_empty(struct net_device *dev)
1109 {
1110 int i = 0;
1111 struct r8192_priv *priv = rtllib_priv(dev);
1112
1113 for (i = 0; i <= MGNT_QUEUE; i++) {
1114 if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
1115 continue;
1116 if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
1117 netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
1118 i, skb_queue_len(&(&priv->tx_ring[i])->queue));
1119 return 0;
1120 }
1121 }
1122 return 1;
1123 }
1124
_rtl92e_tx_check_stuck(struct net_device * dev)1125 static enum reset_type _rtl92e_tx_check_stuck(struct net_device *dev)
1126 {
1127 struct r8192_priv *priv = rtllib_priv(dev);
1128 u8 QueueID;
1129 bool bCheckFwTxCnt = false;
1130 struct rtl8192_tx_ring *ring = NULL;
1131 struct sk_buff *skb = NULL;
1132 struct cb_desc *tcb_desc = NULL;
1133 unsigned long flags = 0;
1134
1135 switch (priv->rtllib->ps) {
1136 case RTLLIB_PS_DISABLED:
1137 break;
1138 case (RTLLIB_PS_MBCAST|RTLLIB_PS_UNICAST):
1139 break;
1140 default:
1141 break;
1142 }
1143 spin_lock_irqsave(&priv->irq_th_lock, flags);
1144 for (QueueID = 0; QueueID < MAX_TX_QUEUE; QueueID++) {
1145 if (QueueID == TXCMD_QUEUE)
1146 continue;
1147
1148 if (QueueID == BEACON_QUEUE)
1149 continue;
1150
1151 ring = &priv->tx_ring[QueueID];
1152
1153 if (skb_queue_len(&ring->queue) == 0) {
1154 continue;
1155 } else {
1156 skb = (&ring->queue)->next;
1157 tcb_desc = (struct cb_desc *)(skb->cb +
1158 MAX_DEV_ADDR_SIZE);
1159 tcb_desc->nStuckCount++;
1160 bCheckFwTxCnt = true;
1161 if (tcb_desc->nStuckCount > 1)
1162 netdev_info(dev,
1163 "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
1164 __func__, QueueID,
1165 tcb_desc->nStuckCount);
1166 }
1167 }
1168 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1169
1170 if (bCheckFwTxCnt) {
1171 if (priv->ops->TxCheckStuckHandler(dev)) {
1172 RT_TRACE(COMP_RESET,
1173 "TxCheckStuck(): Fw indicates no Tx condition!\n");
1174 return RESET_TYPE_SILENT;
1175 }
1176 }
1177
1178 return RESET_TYPE_NORESET;
1179 }
1180
_rtl92e_rx_check_stuck(struct net_device * dev)1181 static enum reset_type _rtl92e_rx_check_stuck(struct net_device *dev)
1182 {
1183 struct r8192_priv *priv = rtllib_priv(dev);
1184
1185 if (priv->ops->RxCheckStuckHandler(dev)) {
1186 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
1187 return RESET_TYPE_SILENT;
1188 }
1189
1190 return RESET_TYPE_NORESET;
1191 }
1192
_rtl92e_if_check_reset(struct net_device * dev)1193 static enum reset_type _rtl92e_if_check_reset(struct net_device *dev)
1194 {
1195 struct r8192_priv *priv = rtllib_priv(dev);
1196 enum reset_type TxResetType = RESET_TYPE_NORESET;
1197 enum reset_type RxResetType = RESET_TYPE_NORESET;
1198 enum rt_rf_power_state rfState;
1199
1200 rfState = priv->rtllib->eRFPowerState;
1201
1202 if (rfState == eRfOn)
1203 TxResetType = _rtl92e_tx_check_stuck(dev);
1204
1205 if (rfState == eRfOn &&
1206 (priv->rtllib->iw_mode == IW_MODE_INFRA) &&
1207 (priv->rtllib->state == RTLLIB_LINKED))
1208 RxResetType = _rtl92e_rx_check_stuck(dev);
1209
1210 if (TxResetType == RESET_TYPE_NORMAL ||
1211 RxResetType == RESET_TYPE_NORMAL) {
1212 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1213 __func__, TxResetType, RxResetType);
1214 return RESET_TYPE_NORMAL;
1215 } else if (TxResetType == RESET_TYPE_SILENT ||
1216 RxResetType == RESET_TYPE_SILENT) {
1217 netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
1218 __func__, TxResetType, RxResetType);
1219 return RESET_TYPE_SILENT;
1220 } else {
1221 return RESET_TYPE_NORESET;
1222 }
1223
1224 }
1225
_rtl92e_if_silent_reset(struct net_device * dev)1226 static void _rtl92e_if_silent_reset(struct net_device *dev)
1227 {
1228 struct r8192_priv *priv = rtllib_priv(dev);
1229 u8 reset_times = 0;
1230 int reset_status = 0;
1231 struct rtllib_device *ieee = priv->rtllib;
1232 unsigned long flag;
1233
1234 if (priv->ResetProgress == RESET_TYPE_NORESET) {
1235
1236 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
1237
1238 priv->ResetProgress = RESET_TYPE_SILENT;
1239
1240 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1241 if (priv->RFChangeInProgress) {
1242 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1243 goto END;
1244 }
1245 priv->RFChangeInProgress = true;
1246 priv->bResetInProgress = true;
1247 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1248
1249 RESET_START:
1250
1251 down(&priv->wx_sem);
1252
1253 if (priv->rtllib->state == RTLLIB_LINKED)
1254 rtl92e_leisure_ps_leave(dev);
1255
1256 if (priv->up) {
1257 netdev_info(dev, "%s():the driver is not up.\n",
1258 __func__);
1259 up(&priv->wx_sem);
1260 return;
1261 }
1262 priv->up = 0;
1263
1264 RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
1265 __func__);
1266 mdelay(1000);
1267 RT_TRACE(COMP_RESET,
1268 "%s():111111111111111111111111======>start to down the driver\n",
1269 __func__);
1270
1271 if (!netif_queue_stopped(dev))
1272 netif_stop_queue(dev);
1273
1274 rtl92e_irq_disable(dev);
1275 del_timer_sync(&priv->watch_dog_timer);
1276 _rtl92e_cancel_deferred_work(priv);
1277 rtl92e_dm_deinit(dev);
1278 rtllib_stop_scan_syncro(ieee);
1279
1280 if (ieee->state == RTLLIB_LINKED) {
1281 SEM_DOWN_IEEE_WX(&ieee->wx_sem);
1282 netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
1283 rtllib_stop_send_beacons(priv->rtllib);
1284 del_timer_sync(&ieee->associate_timer);
1285 cancel_delayed_work(&ieee->associate_retry_wq);
1286 rtllib_stop_scan(ieee);
1287 netif_carrier_off(dev);
1288 SEM_UP_IEEE_WX(&ieee->wx_sem);
1289 } else {
1290 netdev_info(dev, "ieee->state is NOT LINKED\n");
1291 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
1292 }
1293
1294 rtl92e_dm_backup_state(dev);
1295
1296 up(&priv->wx_sem);
1297 RT_TRACE(COMP_RESET,
1298 "%s():<==========down process is finished\n",
1299 __func__);
1300
1301 RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
1302 __func__);
1303 reset_status = _rtl92e_up(dev, true);
1304
1305 RT_TRACE(COMP_RESET,
1306 "%s():<===========up process is finished\n", __func__);
1307 if (reset_status == -1) {
1308 if (reset_times < 3) {
1309 reset_times++;
1310 goto RESET_START;
1311 } else {
1312 netdev_warn(dev, "%s(): Reset Failed\n",
1313 __func__);
1314 }
1315 }
1316
1317 ieee->is_silent_reset = 1;
1318
1319 spin_lock_irqsave(&priv->rf_ps_lock, flag);
1320 priv->RFChangeInProgress = false;
1321 spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
1322
1323 rtl92e_enable_hw_security_config(dev);
1324
1325 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1326 IW_MODE_INFRA) {
1327 ieee->set_chan(ieee->dev,
1328 ieee->current_network.channel);
1329
1330 queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1331
1332 } else if (ieee->state == RTLLIB_LINKED && ieee->iw_mode ==
1333 IW_MODE_ADHOC) {
1334 ieee->set_chan(ieee->dev,
1335 ieee->current_network.channel);
1336 ieee->link_change(ieee->dev);
1337
1338 notify_wx_assoc_event(ieee);
1339
1340 rtllib_start_send_beacons(ieee);
1341
1342 netif_carrier_on(ieee->dev);
1343 }
1344
1345 rtl92e_cam_restore(dev);
1346 rtl92e_dm_restore_state(dev);
1347 END:
1348 priv->ResetProgress = RESET_TYPE_NORESET;
1349 priv->reset_count++;
1350
1351 priv->bForcedSilentReset = false;
1352 priv->bResetInProgress = false;
1353
1354 rtl92e_writeb(dev, UFWP, 1);
1355 RT_TRACE(COMP_RESET, "Reset finished!! ====>[%d]\n",
1356 priv->reset_count);
1357 }
1358 }
1359
_rtl92e_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)1360 static void _rtl92e_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
1361 u32 *TotalRxDataNum)
1362 {
1363 u16 SlotIndex;
1364 u8 i;
1365
1366 *TotalRxBcnNum = 0;
1367 *TotalRxDataNum = 0;
1368
1369 SlotIndex = (priv->rtllib->LinkDetectInfo.SlotIndex++) %
1370 (priv->rtllib->LinkDetectInfo.SlotNum);
1371 priv->rtllib->LinkDetectInfo.RxBcnNum[SlotIndex] =
1372 priv->rtllib->LinkDetectInfo.NumRecvBcnInPeriod;
1373 priv->rtllib->LinkDetectInfo.RxDataNum[SlotIndex] =
1374 priv->rtllib->LinkDetectInfo.NumRecvDataInPeriod;
1375 for (i = 0; i < priv->rtllib->LinkDetectInfo.SlotNum; i++) {
1376 *TotalRxBcnNum += priv->rtllib->LinkDetectInfo.RxBcnNum[i];
1377 *TotalRxDataNum += priv->rtllib->LinkDetectInfo.RxDataNum[i];
1378 }
1379 }
1380
_rtl92e_watchdog_wq_cb(void * data)1381 static void _rtl92e_watchdog_wq_cb(void *data)
1382 {
1383 struct r8192_priv *priv = container_of_dwork_rsl(data,
1384 struct r8192_priv, watch_dog_wq);
1385 struct net_device *dev = priv->rtllib->dev;
1386 struct rtllib_device *ieee = priv->rtllib;
1387 enum reset_type ResetType = RESET_TYPE_NORESET;
1388 static u8 check_reset_cnt;
1389 unsigned long flags;
1390 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1391 (&(priv->rtllib->PowerSaveControl));
1392 bool bBusyTraffic = false;
1393 bool bHigherBusyTraffic = false;
1394 bool bHigherBusyRxTraffic = false;
1395 bool bEnterPS = false;
1396
1397 if (!priv->up || priv->bHwRadioOff)
1398 return;
1399
1400 if (priv->rtllib->state >= RTLLIB_LINKED) {
1401 if (priv->rtllib->CntAfterLink < 2)
1402 priv->rtllib->CntAfterLink++;
1403 } else {
1404 priv->rtllib->CntAfterLink = 0;
1405 }
1406
1407 rtl92e_dm_watchdog(dev);
1408
1409 if (rtllib_act_scanning(priv->rtllib, false) == false) {
1410 if ((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state ==
1411 RTLLIB_NOLINK) &&
1412 (ieee->eRFPowerState == eRfOn) && !ieee->is_set_key &&
1413 (!ieee->proto_stoppping) && !ieee->wx_set_enc) {
1414 if ((ieee->PowerSaveControl.ReturnPoint ==
1415 IPS_CALLBACK_NONE) &&
1416 (!ieee->bNetPromiscuousMode)) {
1417 RT_TRACE(COMP_PS,
1418 "====================>haha: rtl92e_ips_enter()\n");
1419 rtl92e_ips_enter(dev);
1420 }
1421 }
1422 }
1423 if ((ieee->state == RTLLIB_LINKED) && (ieee->iw_mode ==
1424 IW_MODE_INFRA) && (!ieee->bNetPromiscuousMode)) {
1425 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 100 ||
1426 ieee->LinkDetectInfo.NumTxOkInPeriod > 100)
1427 bBusyTraffic = true;
1428
1429
1430 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
1431 ieee->LinkDetectInfo.NumTxOkInPeriod > 4000) {
1432 bHigherBusyTraffic = true;
1433 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 5000)
1434 bHigherBusyRxTraffic = true;
1435 else
1436 bHigherBusyRxTraffic = false;
1437 }
1438
1439 if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
1440 ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
1441 (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2))
1442 bEnterPS = false;
1443 else
1444 bEnterPS = true;
1445
1446 if (ieee->current_network.beacon_interval < 95)
1447 bEnterPS = false;
1448
1449 if (bEnterPS)
1450 rtl92e_leisure_ps_enter(dev);
1451 else
1452 rtl92e_leisure_ps_leave(dev);
1453
1454 } else {
1455 RT_TRACE(COMP_LPS, "====>no link LPS leave\n");
1456 rtl92e_leisure_ps_leave(dev);
1457 }
1458
1459 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
1460 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
1461 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
1462 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
1463
1464 ieee->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
1465 ieee->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
1466
1467 if (ieee->state == RTLLIB_LINKED && ieee->iw_mode == IW_MODE_INFRA) {
1468 u32 TotalRxBcnNum = 0;
1469 u32 TotalRxDataNum = 0;
1470
1471 _rtl92e_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
1472
1473 if ((TotalRxBcnNum+TotalRxDataNum) == 0)
1474 priv->check_roaming_cnt++;
1475 else
1476 priv->check_roaming_cnt = 0;
1477
1478
1479 if (priv->check_roaming_cnt > 0) {
1480 if (ieee->eRFPowerState == eRfOff)
1481 netdev_info(dev, "%s(): RF is off\n", __func__);
1482
1483 netdev_info(dev,
1484 "===>%s(): AP is power off, chan:%d, connect another one\n",
1485 __func__, priv->chan);
1486
1487 ieee->state = RTLLIB_ASSOCIATING;
1488
1489 RemovePeerTS(priv->rtllib,
1490 priv->rtllib->current_network.bssid);
1491 ieee->is_roaming = true;
1492 ieee->is_set_key = false;
1493 ieee->link_change(dev);
1494 if (ieee->LedControlHandler)
1495 ieee->LedControlHandler(ieee->dev,
1496 LED_CTL_START_TO_LINK);
1497
1498 notify_wx_assoc_event(ieee);
1499
1500 if (!(ieee->rtllib_ap_sec_type(ieee) &
1501 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
1502 queue_delayed_work_rsl(ieee->wq,
1503 &ieee->associate_procedure_wq, 0);
1504
1505 priv->check_roaming_cnt = 0;
1506 }
1507 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
1508 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
1509
1510 }
1511
1512 spin_lock_irqsave(&priv->tx_lock, flags);
1513 if ((check_reset_cnt++ >= 3) && (!ieee->is_roaming) &&
1514 (!priv->RFChangeInProgress) && (!pPSC->bSwRfProcessing)) {
1515 ResetType = _rtl92e_if_check_reset(dev);
1516 check_reset_cnt = 3;
1517 }
1518 spin_unlock_irqrestore(&priv->tx_lock, flags);
1519
1520 if (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL) {
1521 priv->ResetProgress = RESET_TYPE_NORMAL;
1522 RT_TRACE(COMP_RESET, "%s(): NOMAL RESET\n", __func__);
1523 return;
1524 }
1525
1526 if (((priv->force_reset) || (!priv->bDisableNormalResetCheck &&
1527 ResetType == RESET_TYPE_SILENT)))
1528 _rtl92e_if_silent_reset(dev);
1529 priv->force_reset = false;
1530 priv->bForcedSilentReset = false;
1531 priv->bResetInProgress = false;
1532 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
1533 }
1534
_rtl92e_watchdog_timer_cb(unsigned long data)1535 static void _rtl92e_watchdog_timer_cb(unsigned long data)
1536 {
1537 struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
1538
1539 queue_delayed_work_rsl(priv->priv_wq, &priv->watch_dog_wq, 0);
1540 mod_timer(&priv->watch_dog_timer, jiffies +
1541 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
1542 }
1543
1544 /****************************************************************************
1545 ---------------------------- NIC TX/RX STUFF---------------------------
1546 *****************************************************************************/
rtl92e_rx_enable(struct net_device * dev)1547 void rtl92e_rx_enable(struct net_device *dev)
1548 {
1549 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1550
1551 priv->ops->rx_enable(dev);
1552 }
1553
rtl92e_tx_enable(struct net_device * dev)1554 void rtl92e_tx_enable(struct net_device *dev)
1555 {
1556 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1557
1558 priv->ops->tx_enable(dev);
1559
1560 rtllib_reset_queue(priv->rtllib);
1561 }
1562
1563
_rtl92e_free_rx_ring(struct net_device * dev)1564 static void _rtl92e_free_rx_ring(struct net_device *dev)
1565 {
1566 struct r8192_priv *priv = rtllib_priv(dev);
1567 int i, rx_queue_idx;
1568
1569 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE;
1570 rx_queue_idx++) {
1571 for (i = 0; i < priv->rxringcount; i++) {
1572 struct sk_buff *skb = priv->rx_buf[rx_queue_idx][i];
1573
1574 if (!skb)
1575 continue;
1576
1577 pci_unmap_single(priv->pdev,
1578 *((dma_addr_t *)skb->cb),
1579 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
1580 kfree_skb(skb);
1581 }
1582
1583 pci_free_consistent(priv->pdev,
1584 sizeof(*priv->rx_ring[rx_queue_idx]) *
1585 priv->rxringcount,
1586 priv->rx_ring[rx_queue_idx],
1587 priv->rx_ring_dma[rx_queue_idx]);
1588 priv->rx_ring[rx_queue_idx] = NULL;
1589 }
1590 }
1591
_rtl92e_free_tx_ring(struct net_device * dev,unsigned int prio)1592 static void _rtl92e_free_tx_ring(struct net_device *dev, unsigned int prio)
1593 {
1594 struct r8192_priv *priv = rtllib_priv(dev);
1595 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1596
1597 while (skb_queue_len(&ring->queue)) {
1598 struct tx_desc *entry = &ring->desc[ring->idx];
1599 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1600
1601 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1602 skb->len, PCI_DMA_TODEVICE);
1603 kfree_skb(skb);
1604 ring->idx = (ring->idx + 1) % ring->entries;
1605 }
1606
1607 pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
1608 ring->desc, ring->dma);
1609 ring->desc = NULL;
1610 }
1611
_rtl92e_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1612 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1613 int rate)
1614 {
1615 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1616 int ret;
1617 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1618 MAX_DEV_ADDR_SIZE);
1619 u8 queue_index = tcb_desc->queue_index;
1620
1621 if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
1622 priv->bResetInProgress) {
1623 kfree_skb(skb);
1624 return;
1625 }
1626
1627 if (queue_index == TXCMD_QUEUE)
1628 netdev_warn(dev, "%s(): queue index == TXCMD_QUEUE\n",
1629 __func__);
1630
1631 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1632 skb_push(skb, priv->rtllib->tx_headroom);
1633 ret = _rtl92e_tx(dev, skb);
1634 if (ret != 0)
1635 kfree_skb(skb);
1636
1637 if (queue_index != MGNT_QUEUE) {
1638 priv->rtllib->stats.tx_bytes += (skb->len -
1639 priv->rtllib->tx_headroom);
1640 priv->rtllib->stats.tx_packets++;
1641 }
1642 }
1643
_rtl92e_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1644 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1645 {
1646 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1647 int ret;
1648 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1649 MAX_DEV_ADDR_SIZE);
1650 u8 queue_index = tcb_desc->queue_index;
1651
1652 if (queue_index != TXCMD_QUEUE) {
1653 if ((priv->rtllib->eRFPowerState == eRfOff) ||
1654 !priv->up || priv->bResetInProgress) {
1655 kfree_skb(skb);
1656 return 0;
1657 }
1658 }
1659
1660 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1661 if (queue_index == TXCMD_QUEUE) {
1662 _rtl92e_tx_cmd(dev, skb);
1663 return 0;
1664 }
1665
1666 tcb_desc->RATRIndex = 7;
1667 tcb_desc->bTxDisableRateFallBack = 1;
1668 tcb_desc->bTxUseDriverAssingedRate = 1;
1669 tcb_desc->bTxEnableFwCalcDur = 1;
1670 skb_push(skb, priv->rtllib->tx_headroom);
1671 ret = _rtl92e_tx(dev, skb);
1672 if (ret != 0)
1673 kfree_skb(skb);
1674 return ret;
1675 }
1676
_rtl92e_tx_isr(struct net_device * dev,int prio)1677 static void _rtl92e_tx_isr(struct net_device *dev, int prio)
1678 {
1679 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1680
1681 struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
1682
1683 while (skb_queue_len(&ring->queue)) {
1684 struct tx_desc *entry = &ring->desc[ring->idx];
1685 struct sk_buff *skb;
1686
1687 if (prio != BEACON_QUEUE) {
1688 if (entry->OWN)
1689 return;
1690 ring->idx = (ring->idx + 1) % ring->entries;
1691 }
1692
1693 skb = __skb_dequeue(&ring->queue);
1694 pci_unmap_single(priv->pdev, entry->TxBuffAddr,
1695 skb->len, PCI_DMA_TODEVICE);
1696
1697 kfree_skb(skb);
1698 }
1699 if (prio != BEACON_QUEUE)
1700 tasklet_schedule(&priv->irq_tx_tasklet);
1701 }
1702
_rtl92e_tx_cmd(struct net_device * dev,struct sk_buff * skb)1703 static void _rtl92e_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1704 {
1705 struct r8192_priv *priv = rtllib_priv(dev);
1706 struct rtl8192_tx_ring *ring;
1707 struct tx_desc_cmd *entry;
1708 unsigned int idx;
1709 struct cb_desc *tcb_desc;
1710 unsigned long flags;
1711
1712 spin_lock_irqsave(&priv->irq_th_lock, flags);
1713 ring = &priv->tx_ring[TXCMD_QUEUE];
1714
1715 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1716 entry = (struct tx_desc_cmd *) &ring->desc[idx];
1717
1718 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1719
1720 priv->ops->tx_fill_cmd_descriptor(dev, entry, tcb_desc, skb);
1721
1722 __skb_queue_tail(&ring->queue, skb);
1723 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1724 }
1725
_rtl92e_tx(struct net_device * dev,struct sk_buff * skb)1726 static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
1727 {
1728 struct r8192_priv *priv = rtllib_priv(dev);
1729 struct rtl8192_tx_ring *ring;
1730 unsigned long flags;
1731 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
1732 MAX_DEV_ADDR_SIZE);
1733 struct tx_desc *pdesc = NULL;
1734 struct rtllib_hdr_1addr *header = NULL;
1735 u16 fc = 0, type = 0, stype = 0;
1736 bool multi_addr = false, broad_addr = false, uni_addr = false;
1737 u8 *pda_addr = NULL;
1738 int idx;
1739 u32 fwinfo_size = 0;
1740
1741 if (priv->bdisable_nic) {
1742 netdev_warn(dev, "%s: Nic is disabled! Can't tx packet.\n",
1743 __func__);
1744 return skb->len;
1745 }
1746
1747 priv->rtllib->bAwakePktSent = true;
1748
1749 fwinfo_size = sizeof(struct tx_fwinfo_8190pci);
1750
1751 header = (struct rtllib_hdr_1addr *)(((u8 *)skb->data) + fwinfo_size);
1752 fc = le16_to_cpu(header->frame_ctl);
1753 type = WLAN_FC_GET_TYPE(fc);
1754 stype = WLAN_FC_GET_STYPE(fc);
1755 pda_addr = header->addr1;
1756
1757 if (is_broadcast_ether_addr(pda_addr))
1758 broad_addr = true;
1759 else if (is_multicast_ether_addr(pda_addr))
1760 multi_addr = true;
1761 else
1762 uni_addr = true;
1763
1764 if (uni_addr)
1765 priv->stats.txbytesunicast += skb->len - fwinfo_size;
1766 else if (multi_addr)
1767 priv->stats.txbytesmulticast += skb->len - fwinfo_size;
1768 else
1769 priv->stats.txbytesbroadcast += skb->len - fwinfo_size;
1770
1771 spin_lock_irqsave(&priv->irq_th_lock, flags);
1772 ring = &priv->tx_ring[tcb_desc->queue_index];
1773 if (tcb_desc->queue_index != BEACON_QUEUE)
1774 idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
1775 else
1776 idx = 0;
1777
1778 pdesc = &ring->desc[idx];
1779 if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
1780 netdev_warn(dev,
1781 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
1782 tcb_desc->queue_index, ring->idx, idx, skb->len,
1783 skb_queue_len(&ring->queue));
1784 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1785 return skb->len;
1786 }
1787
1788 if (type == RTLLIB_FTYPE_DATA) {
1789 if (priv->rtllib->LedControlHandler)
1790 priv->rtllib->LedControlHandler(dev, LED_CTL_TX);
1791 }
1792 priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, skb);
1793 __skb_queue_tail(&ring->queue, skb);
1794 pdesc->OWN = 1;
1795 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1796 dev->trans_start = jiffies;
1797
1798 rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
1799 return 0;
1800 }
1801
_rtl92e_alloc_rx_ring(struct net_device * dev)1802 static short _rtl92e_alloc_rx_ring(struct net_device *dev)
1803 {
1804 struct r8192_priv *priv = rtllib_priv(dev);
1805 struct rx_desc *entry = NULL;
1806 int i, rx_queue_idx;
1807
1808 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1809 priv->rx_ring[rx_queue_idx] = pci_zalloc_consistent(priv->pdev,
1810 sizeof(*priv->rx_ring[rx_queue_idx]) * priv->rxringcount,
1811 &priv->rx_ring_dma[rx_queue_idx]);
1812 if (!priv->rx_ring[rx_queue_idx] ||
1813 (unsigned long)priv->rx_ring[rx_queue_idx] & 0xFF) {
1814 netdev_warn(dev, "Cannot allocate RX ring\n");
1815 return -ENOMEM;
1816 }
1817
1818 priv->rx_idx[rx_queue_idx] = 0;
1819
1820 for (i = 0; i < priv->rxringcount; i++) {
1821 struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
1822 dma_addr_t *mapping;
1823
1824 entry = &priv->rx_ring[rx_queue_idx][i];
1825 if (!skb)
1826 return 0;
1827 skb->dev = dev;
1828 priv->rx_buf[rx_queue_idx][i] = skb;
1829 mapping = (dma_addr_t *)skb->cb;
1830 *mapping = pci_map_single(priv->pdev,
1831 skb_tail_pointer_rsl(skb),
1832 priv->rxbuffersize,
1833 PCI_DMA_FROMDEVICE);
1834 if (pci_dma_mapping_error(priv->pdev, *mapping)) {
1835 dev_kfree_skb_any(skb);
1836 return -1;
1837 }
1838 entry->BufferAddress = *mapping;
1839
1840 entry->Length = priv->rxbuffersize;
1841 entry->OWN = 1;
1842 }
1843
1844 if (entry)
1845 entry->EOR = 1;
1846 }
1847 return 0;
1848 }
1849
_rtl92e_alloc_tx_ring(struct net_device * dev,unsigned int prio,unsigned int entries)1850 static int _rtl92e_alloc_tx_ring(struct net_device *dev, unsigned int prio,
1851 unsigned int entries)
1852 {
1853 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1854 struct tx_desc *ring;
1855 dma_addr_t dma;
1856 int i;
1857
1858 ring = pci_zalloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
1859 if (!ring || (unsigned long)ring & 0xFF) {
1860 netdev_warn(dev, "Cannot allocate TX ring (prio = %d)\n", prio);
1861 return -ENOMEM;
1862 }
1863
1864 priv->tx_ring[prio].desc = ring;
1865 priv->tx_ring[prio].dma = dma;
1866 priv->tx_ring[prio].idx = 0;
1867 priv->tx_ring[prio].entries = entries;
1868 skb_queue_head_init(&priv->tx_ring[prio].queue);
1869
1870 for (i = 0; i < entries; i++)
1871 ring[i].NextDescAddress =
1872 (u32)dma + ((i + 1) % entries) *
1873 sizeof(*ring);
1874
1875 return 0;
1876 }
1877
_rtl92e_pci_initdescring(struct net_device * dev)1878 static short _rtl92e_pci_initdescring(struct net_device *dev)
1879 {
1880 u32 ret;
1881 int i;
1882 struct r8192_priv *priv = rtllib_priv(dev);
1883
1884 ret = _rtl92e_alloc_rx_ring(dev);
1885 if (ret)
1886 return ret;
1887
1888 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1889 ret = _rtl92e_alloc_tx_ring(dev, i, priv->txringcount);
1890 if (ret)
1891 goto err_free_rings;
1892 }
1893
1894 return 0;
1895
1896 err_free_rings:
1897 _rtl92e_free_rx_ring(dev);
1898 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
1899 if (priv->tx_ring[i].desc)
1900 _rtl92e_free_tx_ring(dev, i);
1901 return 1;
1902 }
1903
rtl92e_reset_desc_ring(struct net_device * dev)1904 void rtl92e_reset_desc_ring(struct net_device *dev)
1905 {
1906 struct r8192_priv *priv = rtllib_priv(dev);
1907 int i, rx_queue_idx;
1908 unsigned long flags = 0;
1909
1910 for (rx_queue_idx = 0; rx_queue_idx < MAX_RX_QUEUE; rx_queue_idx++) {
1911 if (priv->rx_ring[rx_queue_idx]) {
1912 struct rx_desc *entry = NULL;
1913
1914 for (i = 0; i < priv->rxringcount; i++) {
1915 entry = &priv->rx_ring[rx_queue_idx][i];
1916 entry->OWN = 1;
1917 }
1918 priv->rx_idx[rx_queue_idx] = 0;
1919 }
1920 }
1921
1922 spin_lock_irqsave(&priv->irq_th_lock, flags);
1923 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
1924 if (priv->tx_ring[i].desc) {
1925 struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
1926
1927 while (skb_queue_len(&ring->queue)) {
1928 struct tx_desc *entry = &ring->desc[ring->idx];
1929 struct sk_buff *skb =
1930 __skb_dequeue(&ring->queue);
1931
1932 pci_unmap_single(priv->pdev,
1933 entry->TxBuffAddr,
1934 skb->len, PCI_DMA_TODEVICE);
1935 kfree_skb(skb);
1936 ring->idx = (ring->idx + 1) % ring->entries;
1937 }
1938 ring->idx = 0;
1939 }
1940 }
1941 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
1942 }
1943
rtl92e_update_rx_pkt_timestamp(struct net_device * dev,struct rtllib_rx_stats * stats)1944 void rtl92e_update_rx_pkt_timestamp(struct net_device *dev,
1945 struct rtllib_rx_stats *stats)
1946 {
1947 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
1948
1949 if (stats->bIsAMPDU && !stats->bFirstMPDU)
1950 stats->mac_time = priv->LastRxDescTSF;
1951 else
1952 priv->LastRxDescTSF = stats->mac_time;
1953 }
1954
rtl92e_translate_to_dbm(struct r8192_priv * priv,u8 signal_strength_index)1955 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index)
1956 {
1957 long signal_power;
1958
1959 signal_power = (long)((signal_strength_index + 1) >> 1);
1960 signal_power -= 95;
1961
1962 return signal_power;
1963 }
1964
1965
rtl92e_update_rx_statistics(struct r8192_priv * priv,struct rtllib_rx_stats * pprevious_stats)1966 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
1967 struct rtllib_rx_stats *pprevious_stats)
1968 {
1969 int weighting = 0;
1970
1971
1972 if (priv->stats.recv_signal_power == 0)
1973 priv->stats.recv_signal_power =
1974 pprevious_stats->RecvSignalPower;
1975
1976 if (pprevious_stats->RecvSignalPower > priv->stats.recv_signal_power)
1977 weighting = 5;
1978 else if (pprevious_stats->RecvSignalPower <
1979 priv->stats.recv_signal_power)
1980 weighting = (-5);
1981 priv->stats.recv_signal_power = (priv->stats.recv_signal_power * 5 +
1982 pprevious_stats->RecvSignalPower +
1983 weighting) / 6;
1984 }
1985
rtl92e_rx_db_to_percent(char antpower)1986 u8 rtl92e_rx_db_to_percent(char antpower)
1987 {
1988 if ((antpower <= -100) || (antpower >= 20))
1989 return 0;
1990 else if (antpower >= 0)
1991 return 100;
1992 else
1993 return 100 + antpower;
1994
1995 } /* QueryRxPwrPercentage */
1996
rtl92e_evm_db_to_percent(char value)1997 u8 rtl92e_evm_db_to_percent(char value)
1998 {
1999 char ret_val;
2000
2001 ret_val = value;
2002
2003 if (ret_val >= 0)
2004 ret_val = 0;
2005 if (ret_val <= -33)
2006 ret_val = -33;
2007 ret_val = 0 - ret_val;
2008 ret_val *= 3;
2009 if (ret_val == 99)
2010 ret_val = 100;
2011 return ret_val;
2012 }
2013
rtl92e_copy_mpdu_stats(struct rtllib_rx_stats * psrc_stats,struct rtllib_rx_stats * ptarget_stats)2014 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
2015 struct rtllib_rx_stats *ptarget_stats)
2016 {
2017 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
2018 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
2019 }
2020
2021
2022
_rtl92e_rx_normal(struct net_device * dev)2023 static void _rtl92e_rx_normal(struct net_device *dev)
2024 {
2025 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2026 struct rtllib_hdr_1addr *rtllib_hdr = NULL;
2027 bool unicast_packet = false;
2028 bool bLedBlinking = true;
2029 u16 fc = 0, type = 0;
2030 u32 skb_len = 0;
2031 int rx_queue_idx = RX_MPDU_QUEUE;
2032
2033 struct rtllib_rx_stats stats = {
2034 .signal = 0,
2035 .noise = (u8) -98,
2036 .rate = 0,
2037 .freq = RTLLIB_24GHZ_BAND,
2038 };
2039 unsigned int count = priv->rxringcount;
2040
2041 stats.nic_type = NIC_8192E;
2042
2043 while (count--) {
2044 struct rx_desc *pdesc = &priv->rx_ring[rx_queue_idx]
2045 [priv->rx_idx[rx_queue_idx]];
2046 struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
2047 [priv->rx_idx[rx_queue_idx]];
2048 struct sk_buff *new_skb;
2049
2050 if (pdesc->OWN)
2051 return;
2052 if (!priv->ops->rx_query_status_descriptor(dev, &stats,
2053 pdesc, skb))
2054 goto done;
2055 new_skb = dev_alloc_skb(priv->rxbuffersize);
2056 /* if allocation of new skb failed - drop current packet
2057 * and reuse skb
2058 */
2059 if (unlikely(!new_skb))
2060 goto done;
2061
2062 pci_unmap_single(priv->pdev,
2063 *((dma_addr_t *)skb->cb),
2064 priv->rxbuffersize,
2065 PCI_DMA_FROMDEVICE);
2066
2067 skb_put(skb, pdesc->Length);
2068 skb_reserve(skb, stats.RxDrvInfoSize +
2069 stats.RxBufShift);
2070 skb_trim(skb, skb->len - 4/*sCrcLng*/);
2071 rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
2072 if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
2073 /* unicast packet */
2074 unicast_packet = true;
2075 }
2076 fc = le16_to_cpu(rtllib_hdr->frame_ctl);
2077 type = WLAN_FC_GET_TYPE(fc);
2078 if (type == RTLLIB_FTYPE_MGMT)
2079 bLedBlinking = false;
2080
2081 if (bLedBlinking)
2082 if (priv->rtllib->LedControlHandler)
2083 priv->rtllib->LedControlHandler(dev,
2084 LED_CTL_RX);
2085
2086 if (stats.bCRC) {
2087 if (type != RTLLIB_FTYPE_MGMT)
2088 priv->stats.rxdatacrcerr++;
2089 else
2090 priv->stats.rxmgmtcrcerr++;
2091 }
2092
2093 skb_len = skb->len;
2094
2095 if (!rtllib_rx(priv->rtllib, skb, &stats)) {
2096 dev_kfree_skb_any(skb);
2097 } else {
2098 priv->stats.rxok++;
2099 if (unicast_packet)
2100 priv->stats.rxbytesunicast += skb_len;
2101 }
2102
2103 skb = new_skb;
2104 skb->dev = dev;
2105
2106 priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
2107 skb;
2108 *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
2109 skb_tail_pointer_rsl(skb),
2110 priv->rxbuffersize,
2111 PCI_DMA_FROMDEVICE);
2112 if (pci_dma_mapping_error(priv->pdev,
2113 *((dma_addr_t *)skb->cb))) {
2114 dev_kfree_skb_any(skb);
2115 return;
2116 }
2117 done:
2118 pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
2119 pdesc->OWN = 1;
2120 pdesc->Length = priv->rxbuffersize;
2121 if (priv->rx_idx[rx_queue_idx] == priv->rxringcount-1)
2122 pdesc->EOR = 1;
2123 priv->rx_idx[rx_queue_idx] = (priv->rx_idx[rx_queue_idx] + 1) %
2124 priv->rxringcount;
2125 }
2126
2127 }
2128
_rtl92e_tx_resume(struct net_device * dev)2129 static void _rtl92e_tx_resume(struct net_device *dev)
2130 {
2131 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2132 struct rtllib_device *ieee = priv->rtllib;
2133 struct sk_buff *skb;
2134 int queue_index;
2135
2136 for (queue_index = BK_QUEUE;
2137 queue_index < MAX_QUEUE_SIZE; queue_index++) {
2138 while ((!skb_queue_empty(&ieee->skb_waitQ[queue_index])) &&
2139 (priv->rtllib->check_nic_enough_desc(dev, queue_index) > 0)) {
2140 skb = skb_dequeue(&ieee->skb_waitQ[queue_index]);
2141 ieee->softmac_data_hard_start_xmit(skb, dev, 0);
2142 }
2143 }
2144 }
2145
_rtl92e_irq_tx_tasklet(struct r8192_priv * priv)2146 static void _rtl92e_irq_tx_tasklet(struct r8192_priv *priv)
2147 {
2148 _rtl92e_tx_resume(priv->rtllib->dev);
2149 }
2150
_rtl92e_irq_rx_tasklet(struct r8192_priv * priv)2151 static void _rtl92e_irq_rx_tasklet(struct r8192_priv *priv)
2152 {
2153 _rtl92e_rx_normal(priv->rtllib->dev);
2154
2155 rtl92e_writel(priv->rtllib->dev, INTA_MASK,
2156 rtl92e_readl(priv->rtllib->dev, INTA_MASK) | IMR_RDU);
2157 }
2158
2159 /****************************************************************************
2160 ---------------------------- NIC START/CLOSE STUFF---------------------------
2161 *****************************************************************************/
_rtl92e_cancel_deferred_work(struct r8192_priv * priv)2162 static void _rtl92e_cancel_deferred_work(struct r8192_priv *priv)
2163 {
2164 cancel_delayed_work(&priv->watch_dog_wq);
2165 cancel_delayed_work(&priv->update_beacon_wq);
2166 cancel_delayed_work(&priv->rtllib->hw_sleep_wq);
2167 cancel_work_sync(&priv->reset_wq);
2168 cancel_work_sync(&priv->qos_activate);
2169 }
2170
_rtl92e_up(struct net_device * dev,bool is_silent_reset)2171 static int _rtl92e_up(struct net_device *dev, bool is_silent_reset)
2172 {
2173 if (_rtl92e_sta_up(dev, is_silent_reset) == -1)
2174 return -1;
2175 return 0;
2176 }
2177
_rtl92e_open(struct net_device * dev)2178 static int _rtl92e_open(struct net_device *dev)
2179 {
2180 struct r8192_priv *priv = rtllib_priv(dev);
2181 int ret;
2182
2183 down(&priv->wx_sem);
2184 ret = _rtl92e_try_up(dev);
2185 up(&priv->wx_sem);
2186 return ret;
2187
2188 }
2189
_rtl92e_try_up(struct net_device * dev)2190 static int _rtl92e_try_up(struct net_device *dev)
2191 {
2192 struct r8192_priv *priv = rtllib_priv(dev);
2193
2194 if (priv->up == 1)
2195 return -1;
2196 return _rtl92e_up(dev, false);
2197 }
2198
2199
_rtl92e_close(struct net_device * dev)2200 static int _rtl92e_close(struct net_device *dev)
2201 {
2202 struct r8192_priv *priv = rtllib_priv(dev);
2203 int ret;
2204
2205 if ((rtllib_act_scanning(priv->rtllib, false)) &&
2206 !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
2207 rtllib_stop_scan(priv->rtllib);
2208 }
2209
2210 down(&priv->wx_sem);
2211
2212 ret = _rtl92e_down(dev, true);
2213
2214 up(&priv->wx_sem);
2215
2216 return ret;
2217
2218 }
2219
_rtl92e_down(struct net_device * dev,bool shutdownrf)2220 static int _rtl92e_down(struct net_device *dev, bool shutdownrf)
2221 {
2222 if (_rtl92e_sta_down(dev, shutdownrf) == -1)
2223 return -1;
2224
2225 return 0;
2226 }
2227
rtl92e_commit(struct net_device * dev)2228 void rtl92e_commit(struct net_device *dev)
2229 {
2230 struct r8192_priv *priv = rtllib_priv(dev);
2231
2232 if (priv->up == 0)
2233 return;
2234 rtllib_softmac_stop_protocol(priv->rtllib, 0, true);
2235 rtl92e_irq_disable(dev);
2236 priv->ops->stop_adapter(dev, true);
2237 _rtl92e_up(dev, false);
2238 }
2239
_rtl92e_restart(void * data)2240 static void _rtl92e_restart(void *data)
2241 {
2242 struct r8192_priv *priv = container_of_work_rsl(data, struct r8192_priv,
2243 reset_wq);
2244 struct net_device *dev = priv->rtllib->dev;
2245
2246 down(&priv->wx_sem);
2247
2248 rtl92e_commit(dev);
2249
2250 up(&priv->wx_sem);
2251 }
2252
_rtl92e_set_multicast(struct net_device * dev)2253 static void _rtl92e_set_multicast(struct net_device *dev)
2254 {
2255 struct r8192_priv *priv = rtllib_priv(dev);
2256 short promisc;
2257
2258 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2259 priv->promisc = promisc;
2260
2261 }
2262
2263
_rtl92e_set_mac_adr(struct net_device * dev,void * mac)2264 static int _rtl92e_set_mac_adr(struct net_device *dev, void *mac)
2265 {
2266 struct r8192_priv *priv = rtllib_priv(dev);
2267 struct sockaddr *addr = mac;
2268
2269 down(&priv->wx_sem);
2270
2271 ether_addr_copy(dev->dev_addr, addr->sa_data);
2272
2273 schedule_work(&priv->reset_wq);
2274 up(&priv->wx_sem);
2275
2276 return 0;
2277 }
2278
2279 /* based on ipw2200 driver */
_rtl92e_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)2280 static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2281 {
2282 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2283 struct iwreq *wrq = (struct iwreq *)rq;
2284 int ret = -1;
2285 struct rtllib_device *ieee = priv->rtllib;
2286 u32 key[4];
2287 const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2288 struct iw_point *p = &wrq->u.data;
2289 struct ieee_param *ipw = NULL;
2290
2291 down(&priv->wx_sem);
2292
2293 switch (cmd) {
2294 case RTL_IOCTL_WPA_SUPPLICANT:
2295 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
2296 ret = -EINVAL;
2297 goto out;
2298 }
2299
2300 ipw = memdup_user(p->pointer, p->length);
2301 if (IS_ERR(ipw)) {
2302 ret = PTR_ERR(ipw);
2303 goto out;
2304 }
2305
2306 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
2307 if (ipw->u.crypt.set_tx) {
2308 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2309 ieee->pairwise_key_type = KEY_TYPE_CCMP;
2310 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2311 ieee->pairwise_key_type = KEY_TYPE_TKIP;
2312 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2313 if (ipw->u.crypt.key_len == 13)
2314 ieee->pairwise_key_type =
2315 KEY_TYPE_WEP104;
2316 else if (ipw->u.crypt.key_len == 5)
2317 ieee->pairwise_key_type =
2318 KEY_TYPE_WEP40;
2319 } else {
2320 ieee->pairwise_key_type = KEY_TYPE_NA;
2321 }
2322
2323 if (ieee->pairwise_key_type) {
2324 if (is_zero_ether_addr(ieee->ap_mac_addr))
2325 ieee->iw_mode = IW_MODE_ADHOC;
2326 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2327 rtl92e_enable_hw_security_config(dev);
2328 rtl92e_set_swcam(dev, 4,
2329 ipw->u.crypt.idx,
2330 ieee->pairwise_key_type,
2331 (u8 *)ieee->ap_mac_addr,
2332 0, key, 0);
2333 rtl92e_set_key(dev, 4, ipw->u.crypt.idx,
2334 ieee->pairwise_key_type,
2335 (u8 *)ieee->ap_mac_addr,
2336 0, key);
2337 if (ieee->iw_mode == IW_MODE_ADHOC) {
2338 rtl92e_set_swcam(dev,
2339 ipw->u.crypt.idx,
2340 ipw->u.crypt.idx,
2341 ieee->pairwise_key_type,
2342 (u8 *)ieee->ap_mac_addr,
2343 0, key, 0);
2344 rtl92e_set_key(dev,
2345 ipw->u.crypt.idx,
2346 ipw->u.crypt.idx,
2347 ieee->pairwise_key_type,
2348 (u8 *)ieee->ap_mac_addr,
2349 0, key);
2350 }
2351 }
2352 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP)
2353 && ieee->pHTInfo->bCurrentHTSupport) {
2354 rtl92e_writeb(dev, 0x173, 1);
2355 }
2356
2357 } else {
2358 memcpy((u8 *)key, ipw->u.crypt.key, 16);
2359 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
2360 ieee->group_key_type = KEY_TYPE_CCMP;
2361 else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
2362 ieee->group_key_type = KEY_TYPE_TKIP;
2363 else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
2364 if (ipw->u.crypt.key_len == 13)
2365 ieee->group_key_type =
2366 KEY_TYPE_WEP104;
2367 else if (ipw->u.crypt.key_len == 5)
2368 ieee->group_key_type =
2369 KEY_TYPE_WEP40;
2370 } else
2371 ieee->group_key_type = KEY_TYPE_NA;
2372
2373 if (ieee->group_key_type) {
2374 rtl92e_set_swcam(dev, ipw->u.crypt.idx,
2375 ipw->u.crypt.idx,
2376 ieee->group_key_type,
2377 broadcast_addr, 0, key,
2378 0);
2379 rtl92e_set_key(dev, ipw->u.crypt.idx,
2380 ipw->u.crypt.idx,
2381 ieee->group_key_type,
2382 broadcast_addr, 0, key);
2383 }
2384 }
2385 }
2386
2387 ret = rtllib_wpa_supplicant_ioctl(priv->rtllib, &wrq->u.data,
2388 0);
2389 kfree(ipw);
2390 break;
2391 default:
2392 ret = -EOPNOTSUPP;
2393 break;
2394 }
2395
2396 out:
2397 up(&priv->wx_sem);
2398
2399 return ret;
2400 }
2401
2402
_rtl92e_irq(int irq,void * netdev)2403 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
2404 {
2405 struct net_device *dev = (struct net_device *) netdev;
2406 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
2407 unsigned long flags;
2408 u32 inta;
2409 u32 intb;
2410
2411 intb = 0;
2412
2413 if (priv->irq_enabled == 0)
2414 goto done;
2415
2416 spin_lock_irqsave(&priv->irq_th_lock, flags);
2417
2418 priv->ops->interrupt_recognized(dev, &inta, &intb);
2419 priv->stats.shints++;
2420
2421 if (!inta) {
2422 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2423 goto done;
2424 }
2425
2426 if (inta == 0xffff) {
2427 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2428 goto done;
2429 }
2430
2431 priv->stats.ints++;
2432
2433 if (!netif_running(dev)) {
2434 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2435 goto done;
2436 }
2437
2438 if (inta & IMR_TBDOK) {
2439 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2440 priv->stats.txbeaconokint++;
2441 }
2442
2443 if (inta & IMR_TBDER) {
2444 RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
2445 priv->stats.txbeaconerr++;
2446 }
2447
2448 if (inta & IMR_BDOK)
2449 RT_TRACE(COMP_INTR, "beacon interrupt!\n");
2450
2451 if (inta & IMR_MGNTDOK) {
2452 RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
2453 priv->stats.txmanageokint++;
2454 _rtl92e_tx_isr(dev, MGNT_QUEUE);
2455 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2456 if (priv->rtllib->ack_tx_to_ieee) {
2457 if (_rtl92e_is_tx_queue_empty(dev)) {
2458 priv->rtllib->ack_tx_to_ieee = 0;
2459 rtllib_ps_tx_ack(priv->rtllib, 1);
2460 }
2461 }
2462 spin_lock_irqsave(&priv->irq_th_lock, flags);
2463 }
2464
2465 if (inta & IMR_COMDOK) {
2466 priv->stats.txcmdpktokint++;
2467 _rtl92e_tx_isr(dev, TXCMD_QUEUE);
2468 }
2469
2470 if (inta & IMR_HIGHDOK)
2471 _rtl92e_tx_isr(dev, HIGH_QUEUE);
2472
2473 if (inta & IMR_ROK) {
2474 priv->stats.rxint++;
2475 priv->InterruptLog.nIMR_ROK++;
2476 tasklet_schedule(&priv->irq_rx_tasklet);
2477 }
2478
2479 if (inta & IMR_BcnInt) {
2480 RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
2481 tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
2482 }
2483
2484 if (inta & IMR_RDU) {
2485 RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
2486 priv->stats.rxrdu++;
2487 rtl92e_writel(dev, INTA_MASK,
2488 rtl92e_readl(dev, INTA_MASK) & ~IMR_RDU);
2489 tasklet_schedule(&priv->irq_rx_tasklet);
2490 }
2491
2492 if (inta & IMR_RXFOVW) {
2493 RT_TRACE(COMP_INTR, "rx overflow !\n");
2494 priv->stats.rxoverflow++;
2495 tasklet_schedule(&priv->irq_rx_tasklet);
2496 }
2497
2498 if (inta & IMR_TXFOVW)
2499 priv->stats.txoverflow++;
2500
2501 if (inta & IMR_BKDOK) {
2502 RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
2503 priv->stats.txbkokint++;
2504 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2505 _rtl92e_tx_isr(dev, BK_QUEUE);
2506 }
2507
2508 if (inta & IMR_BEDOK) {
2509 RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
2510 priv->stats.txbeokint++;
2511 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2512 _rtl92e_tx_isr(dev, BE_QUEUE);
2513 }
2514
2515 if (inta & IMR_VIDOK) {
2516 RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
2517 priv->stats.txviokint++;
2518 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2519 _rtl92e_tx_isr(dev, VI_QUEUE);
2520 }
2521
2522 if (inta & IMR_VODOK) {
2523 priv->stats.txvookint++;
2524 RT_TRACE(COMP_INTR, "Vo TX OK interrupt!\n");
2525 priv->rtllib->LinkDetectInfo.NumTxOkInPeriod++;
2526 _rtl92e_tx_isr(dev, VO_QUEUE);
2527 }
2528
2529 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
2530
2531 done:
2532
2533 return IRQ_HANDLED;
2534 }
2535
2536
2537
2538 /****************************************************************************
2539 ---------------------------- PCI_STUFF---------------------------
2540 *****************************************************************************/
2541 static const struct net_device_ops rtl8192_netdev_ops = {
2542 .ndo_open = _rtl92e_open,
2543 .ndo_stop = _rtl92e_close,
2544 .ndo_tx_timeout = _rtl92e_tx_timeout,
2545 .ndo_do_ioctl = _rtl92e_ioctl,
2546 .ndo_set_rx_mode = _rtl92e_set_multicast,
2547 .ndo_set_mac_address = _rtl92e_set_mac_adr,
2548 .ndo_validate_addr = eth_validate_addr,
2549 .ndo_change_mtu = eth_change_mtu,
2550 .ndo_start_xmit = rtllib_xmit,
2551 };
2552
_rtl92e_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)2553 static int _rtl92e_pci_probe(struct pci_dev *pdev,
2554 const struct pci_device_id *id)
2555 {
2556 unsigned long ioaddr = 0;
2557 struct net_device *dev = NULL;
2558 struct r8192_priv *priv = NULL;
2559 struct rtl819x_ops *ops = (struct rtl819x_ops *)(id->driver_data);
2560 unsigned long pmem_start, pmem_len, pmem_flags;
2561 int err = -ENOMEM;
2562 u8 revision_id;
2563
2564 RT_TRACE(COMP_INIT, "Configuring chip resources");
2565
2566 if (pci_enable_device(pdev)) {
2567 dev_err(&pdev->dev, "Failed to enable PCI device");
2568 return -EIO;
2569 }
2570
2571 pci_set_master(pdev);
2572
2573 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
2574 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
2575 dev_info(&pdev->dev,
2576 "Unable to obtain 32bit DMA for consistent allocations\n");
2577 goto err_pci_disable;
2578 }
2579 }
2580 dev = alloc_rtllib(sizeof(struct r8192_priv));
2581 if (!dev)
2582 goto err_pci_disable;
2583
2584 err = -ENODEV;
2585
2586 pci_set_drvdata(pdev, dev);
2587 SET_NETDEV_DEV(dev, &pdev->dev);
2588 priv = rtllib_priv(dev);
2589 priv->rtllib = (struct rtllib_device *)netdev_priv_rsl(dev);
2590 priv->pdev = pdev;
2591 priv->rtllib->pdev = pdev;
2592 if ((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK) &&
2593 (pdev->subsystem_device == 0x3304))
2594 priv->rtllib->bSupportRemoteWakeUp = 1;
2595 else
2596 priv->rtllib->bSupportRemoteWakeUp = 0;
2597
2598 pmem_start = pci_resource_start(pdev, 1);
2599 pmem_len = pci_resource_len(pdev, 1);
2600 pmem_flags = pci_resource_flags(pdev, 1);
2601
2602 if (!(pmem_flags & IORESOURCE_MEM)) {
2603 netdev_err(dev, "region #1 not a MMIO resource, aborting");
2604 goto err_rel_rtllib;
2605 }
2606
2607 dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
2608 pmem_start);
2609 if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
2610 netdev_err(dev, "request_mem_region failed!");
2611 goto err_rel_rtllib;
2612 }
2613
2614
2615 ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
2616 if (ioaddr == (unsigned long)NULL) {
2617 netdev_err(dev, "ioremap failed!");
2618 goto err_rel_mem;
2619 }
2620
2621 dev->mem_start = ioaddr;
2622 dev->mem_end = ioaddr + pci_resource_len(pdev, 0);
2623
2624 pci_read_config_byte(pdev, 0x08, &revision_id);
2625 /* If the revisionid is 0x10, the device uses rtl8192se. */
2626 if (pdev->device == 0x8192 && revision_id == 0x10)
2627 goto err_unmap;
2628
2629 priv->ops = ops;
2630
2631 if (rtl92e_check_adapter(pdev, dev) == false)
2632 goto err_unmap;
2633
2634 dev->irq = pdev->irq;
2635 priv->irq = 0;
2636
2637 dev->netdev_ops = &rtl8192_netdev_ops;
2638
2639 dev->wireless_handlers = &r8192_wx_handlers_def;
2640 dev->ethtool_ops = &rtl819x_ethtool_ops;
2641
2642 dev->type = ARPHRD_ETHER;
2643 dev->watchdog_timeo = HZ * 3;
2644
2645 if (dev_alloc_name(dev, ifname) < 0) {
2646 RT_TRACE(COMP_INIT,
2647 "Oops: devname already taken! Trying wlan%%d...\n");
2648 dev_alloc_name(dev, ifname);
2649 }
2650
2651 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
2652 if (_rtl92e_init(dev) != 0) {
2653 netdev_warn(dev, "Initialization failed");
2654 goto err_free_irq;
2655 }
2656
2657 netif_carrier_off(dev);
2658 netif_stop_queue(dev);
2659
2660 if (register_netdev(dev))
2661 goto err_free_irq;
2662 RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
2663
2664 if (priv->polling_timer_on == 0)
2665 rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
2666
2667 RT_TRACE(COMP_INIT, "Driver probe completed\n");
2668 return 0;
2669
2670 err_free_irq:
2671 free_irq(dev->irq, dev);
2672 priv->irq = 0;
2673 err_unmap:
2674 iounmap((void __iomem *)ioaddr);
2675 err_rel_mem:
2676 release_mem_region(pmem_start, pmem_len);
2677 err_rel_rtllib:
2678 free_rtllib(dev);
2679 err_pci_disable:
2680 pci_disable_device(pdev);
2681 return err;
2682 }
2683
_rtl92e_pci_disconnect(struct pci_dev * pdev)2684 static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
2685 {
2686 struct net_device *dev = pci_get_drvdata(pdev);
2687 struct r8192_priv *priv;
2688 u32 i;
2689
2690 if (dev) {
2691 unregister_netdev(dev);
2692
2693 priv = rtllib_priv(dev);
2694
2695 del_timer_sync(&priv->gpio_polling_timer);
2696 cancel_delayed_work(&priv->gpio_change_rf_wq);
2697 priv->polling_timer_on = 0;
2698 _rtl92e_down(dev, true);
2699 rtl92e_dm_deinit(dev);
2700 if (priv->pFirmware) {
2701 vfree(priv->pFirmware);
2702 priv->pFirmware = NULL;
2703 }
2704 destroy_workqueue(priv->priv_wq);
2705 _rtl92e_free_rx_ring(dev);
2706 for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
2707 _rtl92e_free_tx_ring(dev, i);
2708
2709 if (priv->irq) {
2710 dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
2711 free_irq(dev->irq, dev);
2712 priv->irq = 0;
2713 }
2714 free_rtllib(dev);
2715
2716 if (dev->mem_start != 0) {
2717 iounmap((void __iomem *)dev->mem_start);
2718 release_mem_region(pci_resource_start(pdev, 1),
2719 pci_resource_len(pdev, 1));
2720 }
2721 } else {
2722 priv = rtllib_priv(dev);
2723 }
2724
2725 pci_disable_device(pdev);
2726 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
2727 }
2728
rtl92e_enable_nic(struct net_device * dev)2729 bool rtl92e_enable_nic(struct net_device *dev)
2730 {
2731 bool init_status = true;
2732 struct r8192_priv *priv = rtllib_priv(dev);
2733 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
2734 (&(priv->rtllib->PowerSaveControl));
2735
2736 if (!priv->up) {
2737 netdev_warn(dev, "%s(): Driver is already down!\n", __func__);
2738 priv->bdisable_nic = false;
2739 return false;
2740 }
2741
2742 RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
2743 priv->bfirst_init = true;
2744 init_status = priv->ops->initialize_adapter(dev);
2745 if (!init_status) {
2746 netdev_warn(dev, "%s(): Initialization failed!\n", __func__);
2747 priv->bdisable_nic = false;
2748 return false;
2749 }
2750 RT_TRACE(COMP_INIT, "start adapter finished\n");
2751 RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
2752 priv->bfirst_init = false;
2753
2754 rtl92e_irq_enable(dev);
2755 priv->bdisable_nic = false;
2756 RT_TRACE(COMP_PS, "<===========%s()\n", __func__);
2757 return init_status;
2758 }
rtl92e_disable_nic(struct net_device * dev)2759 bool rtl92e_disable_nic(struct net_device *dev)
2760 {
2761 struct r8192_priv *priv = rtllib_priv(dev);
2762 u8 tmp_state = 0;
2763
2764 RT_TRACE(COMP_PS, "=========>%s()\n", __func__);
2765 priv->bdisable_nic = true;
2766 tmp_state = priv->rtllib->state;
2767 rtllib_softmac_stop_protocol(priv->rtllib, 0, false);
2768 priv->rtllib->state = tmp_state;
2769 _rtl92e_cancel_deferred_work(priv);
2770 rtl92e_irq_disable(dev);
2771
2772 priv->ops->stop_adapter(dev, false);
2773 RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
2774
2775 return true;
2776 }
2777
2778 module_pci_driver(rtl8192_pci_driver);
2779
rtl92e_check_rfctrl_gpio_timer(unsigned long data)2780 void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
2781 {
2782 struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
2783
2784 priv->polling_timer_on = 1;
2785
2786 queue_delayed_work_rsl(priv->priv_wq, &priv->gpio_change_rf_wq, 0);
2787
2788 mod_timer(&priv->gpio_polling_timer, jiffies +
2789 msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
2790 }
2791
2792 /***************************************************************************
2793 ------------------- module init / exit stubs ----------------
2794 ****************************************************************************/
2795 MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
2796 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
2797 MODULE_VERSION(DRV_VERSION);
2798 MODULE_LICENSE("GPL");
2799 MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
2800 MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
2801 MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
2802
2803 module_param(ifname, charp, S_IRUGO|S_IWUSR);
2804 module_param(hwwep, int, S_IRUGO|S_IWUSR);
2805 module_param(channels, int, S_IRUGO|S_IWUSR);
2806
2807 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
2808 MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support(default use hw. set 0 to use software security)");
2809 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
2810