1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 * Linux device driver for RTL8192U
5 *
6 * Based on the r8187 driver, which is:
7 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
8 *
9 * Contact Information:
10 * Jerry chuang <wlanfae@realtek.com>
11 */
12
13 #ifndef CONFIG_FORCE_HARD_FLOAT
__floatsidf(int i)14 double __floatsidf(int i)
15 {
16 return i;
17 }
18
__fixunsdfsi(double d)19 unsigned int __fixunsdfsi(double d)
20 {
21 return d;
22 }
23
__adddf3(double a,double b)24 double __adddf3(double a, double b)
25 {
26 return a + b;
27 }
28
__addsf3(float a,float b)29 double __addsf3(float a, float b)
30 {
31 return a + b;
32 }
33
__subdf3(double a,double b)34 double __subdf3(double a, double b)
35 {
36 return a - b;
37 }
38
__extendsfdf2(float a)39 double __extendsfdf2(float a)
40 {
41 return a;
42 }
43 #endif
44
45 #define CONFIG_RTL8192_IO_MAP
46
47 #include <linux/uaccess.h>
48 #include "r8192U_hw.h"
49 #include "r8192U.h"
50 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
51 #include "r8180_93cx6.h" /* Card EEPROM */
52 #include "r8192U_wx.h"
53 #include "r819xU_phy.h"
54 #include "r819xU_phyreg.h"
55 #include "r819xU_cmdpkt.h"
56 #include "r8192U_dm.h"
57 #include <linux/usb.h>
58 #include <linux/slab.h>
59 #include <linux/seq_file.h>
60 /* FIXME: check if 2.6.7 is ok */
61
62 #include "ieee80211/dot11d.h"
63 /* set here to open your trace code. */
64 u32 rt_global_debug_component = COMP_DOWN |
65 COMP_SEC |
66 COMP_ERR; /* always open err flags on */
67
68 #define TOTAL_CAM_ENTRY 32
69 #define CAM_CONTENT_COUNT 8
70
71 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
72 /* Realtek */
73 {USB_DEVICE(0x0bda, 0x8709)},
74 /* Corega */
75 {USB_DEVICE(0x07aa, 0x0043)},
76 /* Belkin */
77 {USB_DEVICE(0x050d, 0x805E)},
78 /* Sitecom */
79 {USB_DEVICE(0x0df6, 0x0031)},
80 /* EnGenius */
81 {USB_DEVICE(0x1740, 0x9201)},
82 /* Dlink */
83 {USB_DEVICE(0x2001, 0x3301)},
84 /* Zinwell */
85 {USB_DEVICE(0x5a57, 0x0290)},
86 /* LG */
87 {USB_DEVICE(0x043e, 0x7a01)},
88 {}
89 };
90
91 MODULE_LICENSE("GPL");
92 MODULE_VERSION("V 1.1");
93 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
94 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
95
96 static char *ifname = "wlan%d";
97 static int hwwep = 1; /* default use hw. set 0 to use software security */
98
99 module_param(ifname, charp, 0644);
100 module_param(hwwep, int, 0644);
101
102 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
103 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
104
105 static int rtl8192_usb_probe(struct usb_interface *intf,
106 const struct usb_device_id *id);
107 static void rtl8192_usb_disconnect(struct usb_interface *intf);
108
109 static struct usb_driver rtl8192_usb_driver = {
110 .name = RTL819XU_MODULE_NAME, /* Driver name */
111 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
112 .probe = rtl8192_usb_probe, /* probe fn */
113 .disconnect = rtl8192_usb_disconnect, /* remove fn */
114 .suspend = NULL, /* PM suspend fn */
115 .resume = NULL, /* PM resume fn */
116 };
117
118 struct CHANNEL_LIST {
119 u8 Channel[32];
120 u8 Len;
121 };
122
123 static struct CHANNEL_LIST ChannelPlan[] = {
124 /* FCC */
125 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24},
126 /* IC */
127 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
128 /* ETSI */
129 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
130 /* Spain. Change to ETSI. */
131 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
132 /* France. Change to ETSI. */
133 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
134 /* MKK */
135 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
136 /* MKK1 */
137 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
138 /* Israel. */
139 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
140 /* For 11a , TELEC */
141 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
142 /* MIC */
143 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
144 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
145 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
146 };
147
rtl819x_set_channel_map(u8 channel_plan,struct r8192_priv * priv)148 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
149 {
150 int i, max_chan = -1, min_chan = -1;
151 struct ieee80211_device *ieee = priv->ieee80211;
152
153 switch (channel_plan) {
154 case COUNTRY_CODE_FCC:
155 case COUNTRY_CODE_IC:
156 case COUNTRY_CODE_ETSI:
157 case COUNTRY_CODE_SPAIN:
158 case COUNTRY_CODE_FRANCE:
159 case COUNTRY_CODE_MKK:
160 case COUNTRY_CODE_MKK1:
161 case COUNTRY_CODE_ISRAEL:
162 case COUNTRY_CODE_TELEC:
163 case COUNTRY_CODE_MIC:
164 rtl8192u_dot11d_init(ieee);
165 ieee->bGlobalDomain = false;
166 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
167 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
168 min_chan = 1;
169 max_chan = 14;
170 } else {
171 RT_TRACE(COMP_ERR,
172 "unknown rf chip, can't set channel map in function:%s()\n",
173 __func__);
174 }
175 if (ChannelPlan[channel_plan].Len != 0) {
176 /* Clear old channel map */
177 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
178 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
179 /* Set new channel map */
180 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
181 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
182 break;
183 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
184 }
185 }
186 break;
187
188 case COUNTRY_CODE_GLOBAL_DOMAIN:
189 /* this flag enabled to follow 11d country IE setting,
190 * otherwise, it shall follow global domain settings.
191 */
192 GET_DOT11D_INFO(ieee)->dot11d_enabled = 0;
193 dot11d_reset(ieee);
194 ieee->bGlobalDomain = true;
195 break;
196
197 default:
198 break;
199 }
200 }
201
CamResetAllEntry(struct net_device * dev)202 static void CamResetAllEntry(struct net_device *dev)
203 {
204 u32 ulcommand = 0;
205 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
206 * associate to AP. However, ResetKey is called on
207 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
208 * condition, Cam can not be reset because upper layer will not set
209 * this static key again.
210 */
211 ulcommand |= BIT(31) | BIT(30);
212 write_nic_dword(dev, RWCAM, ulcommand);
213 }
214
write_nic_byte_E(struct net_device * dev,int indx,u8 data)215 int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
216 {
217 int status;
218 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
219 struct usb_device *udev = priv->udev;
220 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
221
222 if (!usbdata)
223 return -ENOMEM;
224 *usbdata = data;
225
226 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
227 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
228 indx | 0xfe00, 0, usbdata, 1, 500);
229 kfree(usbdata);
230
231 if (status < 0) {
232 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
233 return status;
234 }
235 return 0;
236 }
237
read_nic_byte_E(struct net_device * dev,int indx,u8 * data)238 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
239 {
240 int status;
241 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
242 struct usb_device *udev = priv->udev;
243 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
244
245 if (!usbdata)
246 return -ENOMEM;
247
248 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
249 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
250 indx | 0xfe00, 0, usbdata, 1, 500);
251 *data = *usbdata;
252 kfree(usbdata);
253
254 if (status < 0) {
255 netdev_err(dev, "%s failure status: %d\n", __func__, status);
256 return status;
257 }
258
259 return 0;
260 }
261
262 /* as 92U has extend page from 4 to 16, so modify functions below. */
write_nic_byte(struct net_device * dev,int indx,u8 data)263 int write_nic_byte(struct net_device *dev, int indx, u8 data)
264 {
265 int status;
266
267 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
268 struct usb_device *udev = priv->udev;
269 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
270
271 if (!usbdata)
272 return -ENOMEM;
273 *usbdata = data;
274
275 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
276 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
277 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
278 usbdata, 1, 500);
279 kfree(usbdata);
280
281 if (status < 0) {
282 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
283 return status;
284 }
285
286 return 0;
287 }
288
write_nic_word(struct net_device * dev,int indx,u16 data)289 int write_nic_word(struct net_device *dev, int indx, u16 data)
290 {
291 int status;
292
293 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
294 struct usb_device *udev = priv->udev;
295 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
296
297 if (!usbdata)
298 return -ENOMEM;
299 *usbdata = data;
300
301 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
302 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
303 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
304 usbdata, 2, 500);
305 kfree(usbdata);
306
307 if (status < 0) {
308 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
309 return status;
310 }
311
312 return 0;
313 }
314
write_nic_dword(struct net_device * dev,int indx,u32 data)315 int write_nic_dword(struct net_device *dev, int indx, u32 data)
316 {
317 int status;
318
319 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
320 struct usb_device *udev = priv->udev;
321 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
322
323 if (!usbdata)
324 return -ENOMEM;
325 *usbdata = data;
326
327 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
328 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
329 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
330 usbdata, 4, 500);
331 kfree(usbdata);
332
333 if (status < 0) {
334 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
335 return status;
336 }
337
338 return 0;
339 }
340
read_nic_byte(struct net_device * dev,int indx,u8 * data)341 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
342 {
343 int status;
344 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
345 struct usb_device *udev = priv->udev;
346 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
347
348 if (!usbdata)
349 return -ENOMEM;
350
351 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
352 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
353 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
354 usbdata, 1, 500);
355 *data = *usbdata;
356 kfree(usbdata);
357
358 if (status < 0) {
359 netdev_err(dev, "%s failure status: %d\n", __func__, status);
360 return status;
361 }
362
363 return 0;
364 }
365
read_nic_word(struct net_device * dev,int indx,u16 * data)366 int read_nic_word(struct net_device *dev, int indx, u16 *data)
367 {
368 int status;
369 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
370 struct usb_device *udev = priv->udev;
371 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
372
373 if (!usbdata)
374 return -ENOMEM;
375
376 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
377 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
378 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
379 usbdata, 2, 500);
380 *data = *usbdata;
381 kfree(usbdata);
382
383 if (status < 0) {
384 netdev_err(dev, "%s failure status: %d\n", __func__, status);
385 return status;
386 }
387
388 return 0;
389 }
390
read_nic_word_E(struct net_device * dev,int indx,u16 * data)391 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
392 {
393 int status;
394 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
395 struct usb_device *udev = priv->udev;
396 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
397
398 if (!usbdata)
399 return -ENOMEM;
400
401 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
402 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
403 indx | 0xfe00, 0, usbdata, 2, 500);
404 *data = *usbdata;
405 kfree(usbdata);
406
407 if (status < 0) {
408 netdev_err(dev, "%s failure status: %d\n", __func__, status);
409 return status;
410 }
411
412 return 0;
413 }
414
read_nic_dword(struct net_device * dev,int indx,u32 * data)415 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
416 {
417 int status;
418
419 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
420 struct usb_device *udev = priv->udev;
421 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
422
423 if (!usbdata)
424 return -ENOMEM;
425
426 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
427 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
428 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
429 usbdata, 4, 500);
430 *data = *usbdata;
431 kfree(usbdata);
432
433 if (status < 0) {
434 netdev_err(dev, "%s failure status: %d\n", __func__, status);
435 return status;
436 }
437
438 return 0;
439 }
440
441 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
442 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
443 /* this might still called in what was the PHY rtl8185/rtl8192 common code
444 * plans are to possibility turn it again in one common code...
445 */
force_pci_posting(struct net_device * dev)446 inline void force_pci_posting(struct net_device *dev)
447 {
448 }
449
450 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
451 static void rtl8192_restart(struct work_struct *work);
452 static void watch_dog_timer_callback(struct timer_list *t);
453
454 /****************************************************************************
455 * -----------------------------MISC STUFF-------------------------
456 *****************************************************************************/
457
check_nic_enough_desc(struct net_device * dev,int queue_index)458 short check_nic_enough_desc(struct net_device *dev, int queue_index)
459 {
460 struct r8192_priv *priv = ieee80211_priv(dev);
461 int used = atomic_read(&priv->tx_pending[queue_index]);
462
463 return (used < MAX_TX_URB);
464 }
465
tx_timeout(struct net_device * dev,unsigned int txqueue)466 static void tx_timeout(struct net_device *dev, unsigned int txqueue)
467 {
468 struct r8192_priv *priv = ieee80211_priv(dev);
469
470 schedule_work(&priv->reset_wq);
471 }
472
rtl8192_update_msr(struct net_device * dev)473 void rtl8192_update_msr(struct net_device *dev)
474 {
475 struct r8192_priv *priv = ieee80211_priv(dev);
476 u8 msr;
477
478 read_nic_byte(dev, MSR, &msr);
479 msr &= ~MSR_LINK_MASK;
480
481 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
482 * msr must be updated if the state is ASSOCIATING.
483 * this is intentional and make sense for ad-hoc and
484 * master (see the create BSS/IBSS func)
485 */
486 if (priv->ieee80211->state == IEEE80211_LINKED) {
487 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
488 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
489 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
490 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
491 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
492 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
493
494 } else {
495 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
496 }
497
498 write_nic_byte(dev, MSR, msr);
499 }
500
rtl8192_set_chan(struct net_device * dev,short ch)501 void rtl8192_set_chan(struct net_device *dev, short ch)
502 {
503 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
504
505 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
506 priv->chan = ch;
507
508 /* this hack should avoid frame TX during channel setting*/
509
510 /* need to implement rf set channel here */
511
512 if (priv->rf_set_chan)
513 priv->rf_set_chan(dev, priv->chan);
514 mdelay(10);
515 }
516
517 static void rtl8192_rx_isr(struct urb *urb);
518
get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats * pstats)519 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
520 {
521 return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize
522 + pstats->RxBufShift);
523 }
524
rtl8192_rx_enable(struct net_device * dev)525 void rtl8192_rx_enable(struct net_device *dev)
526 {
527 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
528 struct urb *entry;
529 struct sk_buff *skb;
530 struct rtl8192_rx_info *info;
531
532 /* nomal packet rx procedure */
533 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
534 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
535 if (!skb)
536 break;
537 entry = usb_alloc_urb(0, GFP_KERNEL);
538 if (!entry) {
539 kfree_skb(skb);
540 break;
541 }
542 usb_fill_bulk_urb(entry, priv->udev,
543 usb_rcvbulkpipe(priv->udev, 3),
544 skb_tail_pointer(skb),
545 RX_URB_SIZE, rtl8192_rx_isr, skb);
546 info = (struct rtl8192_rx_info *)skb->cb;
547 info->urb = entry;
548 info->dev = dev;
549 info->out_pipe = 3; /* denote rx normal packet queue */
550 skb_queue_tail(&priv->rx_queue, skb);
551 usb_submit_urb(entry, GFP_KERNEL);
552 }
553
554 /* command packet rx procedure */
555 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
556 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
557 if (!skb)
558 break;
559 entry = usb_alloc_urb(0, GFP_KERNEL);
560 if (!entry) {
561 kfree_skb(skb);
562 break;
563 }
564 usb_fill_bulk_urb(entry, priv->udev,
565 usb_rcvbulkpipe(priv->udev, 9),
566 skb_tail_pointer(skb),
567 RX_URB_SIZE, rtl8192_rx_isr, skb);
568 info = (struct rtl8192_rx_info *)skb->cb;
569 info->urb = entry;
570 info->dev = dev;
571 info->out_pipe = 9; /* denote rx cmd packet queue */
572 skb_queue_tail(&priv->rx_queue, skb);
573 usb_submit_urb(entry, GFP_KERNEL);
574 }
575 }
576
rtl8192_set_rxconf(struct net_device * dev)577 void rtl8192_set_rxconf(struct net_device *dev)
578 {
579 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
580 u32 rxconf;
581
582 read_nic_dword(dev, RCR, &rxconf);
583 rxconf = rxconf & ~MAC_FILTER_MASK;
584 rxconf = rxconf | RCR_AMF;
585 rxconf = rxconf | RCR_ADF;
586 rxconf = rxconf | RCR_AB;
587 rxconf = rxconf | RCR_AM;
588
589 if (dev->flags & IFF_PROMISC)
590 DMESG("NIC in promisc mode");
591
592 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
593 dev->flags & IFF_PROMISC) {
594 rxconf = rxconf | RCR_AAP;
595 } else {
596 rxconf = rxconf | RCR_APM;
597 rxconf = rxconf | RCR_CBSSID;
598 }
599
600 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
601 rxconf = rxconf | RCR_AICV;
602 rxconf = rxconf | RCR_APWRMGT;
603 }
604
605 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
606 rxconf = rxconf | RCR_ACRC32;
607
608 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
609 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
610 rxconf = rxconf & ~MAX_RX_DMA_MASK;
611 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
612
613 rxconf = rxconf | RCR_ONLYERLPKT;
614
615 write_nic_dword(dev, RCR, rxconf);
616 }
617
rtl8192_rtx_disable(struct net_device * dev)618 void rtl8192_rtx_disable(struct net_device *dev)
619 {
620 u8 cmd;
621 struct r8192_priv *priv = ieee80211_priv(dev);
622 struct sk_buff *skb;
623 struct rtl8192_rx_info *info;
624
625 read_nic_byte(dev, CMDR, &cmd);
626 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
627 force_pci_posting(dev);
628 mdelay(10);
629
630 while ((skb = __skb_dequeue(&priv->rx_queue))) {
631 info = (struct rtl8192_rx_info *)skb->cb;
632 if (!info->urb)
633 continue;
634
635 usb_kill_urb(info->urb);
636 kfree_skb(skb);
637 }
638
639 if (skb_queue_len(&priv->skb_queue))
640 netdev_warn(dev, "skb_queue not empty\n");
641
642 skb_queue_purge(&priv->skb_queue);
643 }
644
645 /* The prototype of rx_isr has changed since one version of Linux Kernel */
rtl8192_rx_isr(struct urb * urb)646 static void rtl8192_rx_isr(struct urb *urb)
647 {
648 struct sk_buff *skb = (struct sk_buff *)urb->context;
649 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
650 struct net_device *dev = info->dev;
651 struct r8192_priv *priv = ieee80211_priv(dev);
652 int out_pipe = info->out_pipe;
653 int err;
654
655 if (!priv->up)
656 return;
657
658 if (unlikely(urb->status)) {
659 info->urb = NULL;
660 priv->stats.rxstaterr++;
661 priv->ieee80211->stats.rx_errors++;
662 usb_free_urb(urb);
663 return;
664 }
665 skb_unlink(skb, &priv->rx_queue);
666 skb_put(skb, urb->actual_length);
667
668 skb_queue_tail(&priv->skb_queue, skb);
669 tasklet_schedule(&priv->irq_rx_tasklet);
670
671 skb = dev_alloc_skb(RX_URB_SIZE);
672 if (unlikely(!skb)) {
673 usb_free_urb(urb);
674 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
675 /* TODO check rx queue length and refill *somewhere* */
676 return;
677 }
678
679 usb_fill_bulk_urb(urb, priv->udev,
680 usb_rcvbulkpipe(priv->udev, out_pipe),
681 skb_tail_pointer(skb),
682 RX_URB_SIZE, rtl8192_rx_isr, skb);
683
684 info = (struct rtl8192_rx_info *)skb->cb;
685 info->urb = urb;
686 info->dev = dev;
687 info->out_pipe = out_pipe;
688
689 urb->transfer_buffer = skb_tail_pointer(skb);
690 urb->context = skb;
691 skb_queue_tail(&priv->rx_queue, skb);
692 err = usb_submit_urb(urb, GFP_ATOMIC);
693 if (err && err != -EPERM)
694 netdev_err(dev,
695 "can not submit rxurb, err is %x, URB status is %x\n",
696 err, urb->status);
697 }
698
rtl819xusb_rx_command_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)699 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
700 struct ieee80211_rx_stats *pstats)
701 {
702 u32 status;
703
704 status = cmpk_message_handle_rx(dev, pstats);
705 if (status)
706 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
707
708 return status;
709 }
710
rtl8192_data_hard_stop(struct net_device * dev)711 static void rtl8192_data_hard_stop(struct net_device *dev)
712 {
713 /* FIXME !! */
714 }
715
rtl8192_data_hard_resume(struct net_device * dev)716 static void rtl8192_data_hard_resume(struct net_device *dev)
717 {
718 /* FIXME !! */
719 }
720
721 /* this function TX data frames when the ieee80211 stack requires this.
722 * It checks also if we need to stop the ieee tx queue, eventually do it
723 */
rtl8192_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)724 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
725 int rate)
726 {
727 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
728 unsigned long flags;
729 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
730 u8 queue_index = tcb_desc->queue_index;
731
732 /* shall not be referred by command packet */
733 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
734
735 spin_lock_irqsave(&priv->tx_lock, flags);
736
737 *(struct net_device **)(skb->cb) = dev;
738 tcb_desc->bTxEnableFwCalcDur = 1;
739 skb_push(skb, priv->ieee80211->tx_headroom);
740 rtl8192_tx(dev, skb);
741
742 spin_unlock_irqrestore(&priv->tx_lock, flags);
743 }
744
745 /* This is a rough attempt to TX a frame
746 * This is called by the ieee 80211 stack to TX management frames.
747 * If the ring is full packet are dropped (for data frame the queue
748 * is stopped before this can happen).
749 */
rtl8192_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)750 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
751 {
752 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
753 int ret;
754 unsigned long flags;
755 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
756 u8 queue_index = tcb_desc->queue_index;
757
758 spin_lock_irqsave(&priv->tx_lock, flags);
759
760 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
761 if (queue_index == TXCMD_QUEUE) {
762 skb_push(skb, USB_HWDESC_HEADER_LEN);
763 rtl819xU_tx_cmd(dev, skb);
764 ret = 1;
765 } else {
766 skb_push(skb, priv->ieee80211->tx_headroom);
767 ret = rtl8192_tx(dev, skb);
768 }
769
770 spin_unlock_irqrestore(&priv->tx_lock, flags);
771
772 return ret;
773 }
774
rtl8192_tx_isr(struct urb * tx_urb)775 static void rtl8192_tx_isr(struct urb *tx_urb)
776 {
777 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
778 struct net_device *dev;
779 struct r8192_priv *priv = NULL;
780 struct cb_desc *tcb_desc;
781 u8 queue_index;
782
783 if (!skb)
784 return;
785
786 dev = *(struct net_device **)(skb->cb);
787 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
788 queue_index = tcb_desc->queue_index;
789
790 priv = ieee80211_priv(dev);
791
792 if (tcb_desc->queue_index != TXCMD_QUEUE) {
793 if (tx_urb->status == 0) {
794 netif_trans_update(dev);
795 priv->stats.txoktotal++;
796 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
797 priv->stats.txbytesunicast +=
798 (skb->len - priv->ieee80211->tx_headroom);
799 } else {
800 priv->ieee80211->stats.tx_errors++;
801 /* TODO */
802 }
803 }
804
805 /* free skb and tx_urb */
806 dev_kfree_skb_any(skb);
807 usb_free_urb(tx_urb);
808 atomic_dec(&priv->tx_pending[queue_index]);
809
810 /*
811 * Handle HW Beacon:
812 * We had transfer our beacon frame to host controller at this moment.
813 *
814 *
815 * Caution:
816 * Handling the wait queue of command packets.
817 * For Tx command packets, we must not do TCB fragment because it is
818 * not handled right now. We must cut the packets to match the size of
819 * TX_CMD_PKT before we send it.
820 */
821
822 /* Handle MPDU in wait queue. */
823 if (queue_index != BEACON_QUEUE) {
824 /* Don't send data frame during scanning.*/
825 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
826 (!(priv->ieee80211->queue_stop))) {
827 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
828 if (skb)
829 priv->ieee80211->softmac_hard_start_xmit(skb,
830 dev);
831
832 return; /* avoid further processing AMSDU */
833 }
834 }
835 }
836
rtl8192_config_rate(struct net_device * dev,u16 * rate_config)837 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
838 {
839 struct r8192_priv *priv = ieee80211_priv(dev);
840 struct ieee80211_network *net;
841 u8 i = 0, basic_rate = 0;
842
843 net = &priv->ieee80211->current_network;
844
845 for (i = 0; i < net->rates_len; i++) {
846 basic_rate = net->rates[i] & 0x7f;
847 switch (basic_rate) {
848 case MGN_1M:
849 *rate_config |= RRSR_1M;
850 break;
851 case MGN_2M:
852 *rate_config |= RRSR_2M;
853 break;
854 case MGN_5_5M:
855 *rate_config |= RRSR_5_5M;
856 break;
857 case MGN_11M:
858 *rate_config |= RRSR_11M;
859 break;
860 case MGN_6M:
861 *rate_config |= RRSR_6M;
862 break;
863 case MGN_9M:
864 *rate_config |= RRSR_9M;
865 break;
866 case MGN_12M:
867 *rate_config |= RRSR_12M;
868 break;
869 case MGN_18M:
870 *rate_config |= RRSR_18M;
871 break;
872 case MGN_24M:
873 *rate_config |= RRSR_24M;
874 break;
875 case MGN_36M:
876 *rate_config |= RRSR_36M;
877 break;
878 case MGN_48M:
879 *rate_config |= RRSR_48M;
880 break;
881 case MGN_54M:
882 *rate_config |= RRSR_54M;
883 break;
884 }
885 }
886 for (i = 0; i < net->rates_ex_len; i++) {
887 basic_rate = net->rates_ex[i] & 0x7f;
888 switch (basic_rate) {
889 case MGN_1M:
890 *rate_config |= RRSR_1M;
891 break;
892 case MGN_2M:
893 *rate_config |= RRSR_2M;
894 break;
895 case MGN_5_5M:
896 *rate_config |= RRSR_5_5M;
897 break;
898 case MGN_11M:
899 *rate_config |= RRSR_11M;
900 break;
901 case MGN_6M:
902 *rate_config |= RRSR_6M;
903 break;
904 case MGN_9M:
905 *rate_config |= RRSR_9M;
906 break;
907 case MGN_12M:
908 *rate_config |= RRSR_12M;
909 break;
910 case MGN_18M:
911 *rate_config |= RRSR_18M;
912 break;
913 case MGN_24M:
914 *rate_config |= RRSR_24M;
915 break;
916 case MGN_36M:
917 *rate_config |= RRSR_36M;
918 break;
919 case MGN_48M:
920 *rate_config |= RRSR_48M;
921 break;
922 case MGN_54M:
923 *rate_config |= RRSR_54M;
924 break;
925 }
926 }
927 }
928
929 #define SHORT_SLOT_TIME 9
930 #define NON_SHORT_SLOT_TIME 20
931
rtl8192_update_cap(struct net_device * dev,u16 cap)932 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
933 {
934 u32 tmp = 0;
935 struct r8192_priv *priv = ieee80211_priv(dev);
936 struct ieee80211_network *net = &priv->ieee80211->current_network;
937
938 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
939 tmp = priv->basic_rate;
940 if (priv->short_preamble)
941 tmp |= BRSR_AckShortPmb;
942 write_nic_dword(dev, RRSR, tmp);
943
944 if (net->mode & (IEEE_G | IEEE_N_24G)) {
945 u8 slot_time = 0;
946
947 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
948 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
949 /* short slot time */
950 slot_time = SHORT_SLOT_TIME;
951 else /* long slot time */
952 slot_time = NON_SHORT_SLOT_TIME;
953 priv->slot_time = slot_time;
954 write_nic_byte(dev, SLOT_TIME, slot_time);
955 }
956 }
957
rtl8192_net_update(struct net_device * dev)958 static void rtl8192_net_update(struct net_device *dev)
959 {
960 struct r8192_priv *priv = ieee80211_priv(dev);
961 struct ieee80211_network *net;
962 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
963 u16 rate_config = 0;
964
965 net = &priv->ieee80211->current_network;
966
967 rtl8192_config_rate(dev, &rate_config);
968 priv->basic_rate = rate_config & 0x15f;
969
970 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
971 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
972
973 rtl8192_update_msr(dev);
974 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
975 write_nic_word(dev, ATIMWND, 2);
976 write_nic_word(dev, BCN_DMATIME, 1023);
977 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
978 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
979 write_nic_byte(dev, BCN_ERR_THRESH, 100);
980 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
981 /* TODO: BcnIFS may required to be changed on ASIC */
982 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
983
984 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
985 }
986 }
987
988 /* temporary hw beacon is not used any more.
989 * open it when necessary
990 */
rtl819xusb_beacon_tx(struct net_device * dev,u16 tx_rate)991 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
992 {
993 }
994
rtl819xU_tx_cmd(struct net_device * dev,struct sk_buff * skb)995 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
996 {
997 struct r8192_priv *priv = ieee80211_priv(dev);
998 int status;
999 struct urb *tx_urb;
1000 unsigned int idx_pipe;
1001 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data;
1002 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1003 u8 queue_index = tcb_desc->queue_index;
1004
1005 atomic_inc(&priv->tx_pending[queue_index]);
1006 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1007 if (!tx_urb) {
1008 dev_kfree_skb(skb);
1009 return -ENOMEM;
1010 }
1011
1012 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1013 /* Tx descriptor ought to be set according to the skb->cb */
1014 pdesc->FirstSeg = 1;
1015 pdesc->LastSeg = 1;
1016 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1017 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1018 pdesc->OWN = 1;
1019 pdesc->LINIP = tcb_desc->bLastIniPkt;
1020
1021 /*---------------------------------------------------------------------
1022 * Fill up USB_OUT_CONTEXT.
1023 *---------------------------------------------------------------------
1024 */
1025 idx_pipe = 0x04;
1026 usb_fill_bulk_urb(tx_urb, priv->udev,
1027 usb_sndbulkpipe(priv->udev, idx_pipe),
1028 skb->data, skb->len, rtl8192_tx_isr, skb);
1029
1030 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1031
1032 if (!status)
1033 return 0;
1034
1035 DMESGE("Error TX CMD URB, error %d", status);
1036 dev_kfree_skb(skb);
1037 usb_free_urb(tx_urb);
1038 return -1;
1039 }
1040
1041 /*
1042 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1043 * in TxFwInfo data structure
1044 * 2006.10.30 by Emily
1045 *
1046 * \param QUEUEID Software Queue
1047 */
MapHwQueueToFirmwareQueue(u8 QueueID)1048 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1049 {
1050 u8 QueueSelect = 0x0; /* default set to */
1051
1052 switch (QueueID) {
1053 case BE_QUEUE:
1054 QueueSelect = QSLT_BE;
1055 break;
1056
1057 case BK_QUEUE:
1058 QueueSelect = QSLT_BK;
1059 break;
1060
1061 case VO_QUEUE:
1062 QueueSelect = QSLT_VO;
1063 break;
1064
1065 case VI_QUEUE:
1066 QueueSelect = QSLT_VI;
1067 break;
1068 case MGNT_QUEUE:
1069 QueueSelect = QSLT_MGNT;
1070 break;
1071
1072 case BEACON_QUEUE:
1073 QueueSelect = QSLT_BEACON;
1074 break;
1075
1076 /* TODO: mark other queue selection until we verify it is OK */
1077 /* TODO: Remove Assertions */
1078 case TXCMD_QUEUE:
1079 QueueSelect = QSLT_CMD;
1080 break;
1081 case HIGH_QUEUE:
1082 QueueSelect = QSLT_HIGH;
1083 break;
1084
1085 default:
1086 RT_TRACE(COMP_ERR,
1087 "TransmitTCB(): Impossible Queue Selection: %d\n",
1088 QueueID);
1089 break;
1090 }
1091 return QueueSelect;
1092 }
1093
MRateToHwRate8190Pci(u8 rate)1094 static u8 MRateToHwRate8190Pci(u8 rate)
1095 {
1096 u8 ret = DESC90_RATE1M;
1097
1098 switch (rate) {
1099 case MGN_1M:
1100 ret = DESC90_RATE1M;
1101 break;
1102 case MGN_2M:
1103 ret = DESC90_RATE2M;
1104 break;
1105 case MGN_5_5M:
1106 ret = DESC90_RATE5_5M;
1107 break;
1108 case MGN_11M:
1109 ret = DESC90_RATE11M;
1110 break;
1111 case MGN_6M:
1112 ret = DESC90_RATE6M;
1113 break;
1114 case MGN_9M:
1115 ret = DESC90_RATE9M;
1116 break;
1117 case MGN_12M:
1118 ret = DESC90_RATE12M;
1119 break;
1120 case MGN_18M:
1121 ret = DESC90_RATE18M;
1122 break;
1123 case MGN_24M:
1124 ret = DESC90_RATE24M;
1125 break;
1126 case MGN_36M:
1127 ret = DESC90_RATE36M;
1128 break;
1129 case MGN_48M:
1130 ret = DESC90_RATE48M;
1131 break;
1132 case MGN_54M:
1133 ret = DESC90_RATE54M;
1134 break;
1135
1136 /* HT rate since here */
1137 case MGN_MCS0:
1138 ret = DESC90_RATEMCS0;
1139 break;
1140 case MGN_MCS1:
1141 ret = DESC90_RATEMCS1;
1142 break;
1143 case MGN_MCS2:
1144 ret = DESC90_RATEMCS2;
1145 break;
1146 case MGN_MCS3:
1147 ret = DESC90_RATEMCS3;
1148 break;
1149 case MGN_MCS4:
1150 ret = DESC90_RATEMCS4;
1151 break;
1152 case MGN_MCS5:
1153 ret = DESC90_RATEMCS5;
1154 break;
1155 case MGN_MCS6:
1156 ret = DESC90_RATEMCS6;
1157 break;
1158 case MGN_MCS7:
1159 ret = DESC90_RATEMCS7;
1160 break;
1161 case MGN_MCS8:
1162 ret = DESC90_RATEMCS8;
1163 break;
1164 case MGN_MCS9:
1165 ret = DESC90_RATEMCS9;
1166 break;
1167 case MGN_MCS10:
1168 ret = DESC90_RATEMCS10;
1169 break;
1170 case MGN_MCS11:
1171 ret = DESC90_RATEMCS11;
1172 break;
1173 case MGN_MCS12:
1174 ret = DESC90_RATEMCS12;
1175 break;
1176 case MGN_MCS13:
1177 ret = DESC90_RATEMCS13;
1178 break;
1179 case MGN_MCS14:
1180 ret = DESC90_RATEMCS14;
1181 break;
1182 case MGN_MCS15:
1183 ret = DESC90_RATEMCS15;
1184 break;
1185 case (0x80 | 0x20):
1186 ret = DESC90_RATEMCS32;
1187 break;
1188
1189 default:
1190 break;
1191 }
1192 return ret;
1193 }
1194
QueryIsShort(u8 TxHT,u8 TxRate,struct cb_desc * tcb_desc)1195 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1196 {
1197 u8 tmp_Short;
1198
1199 tmp_Short = (TxHT == 1) ?
1200 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1201 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1202
1203 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1204 tmp_Short = 0;
1205
1206 return tmp_Short;
1207 }
1208
tx_zero_isr(struct urb * tx_urb)1209 static void tx_zero_isr(struct urb *tx_urb)
1210 {
1211 }
1212
1213 /*
1214 * The tx procedure is just as following,
1215 * skb->cb will contain all the following information,
1216 * priority, morefrag, rate, &dev.
1217 */
rtl8192_tx(struct net_device * dev,struct sk_buff * skb)1218 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1219 {
1220 struct r8192_priv *priv = ieee80211_priv(dev);
1221 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1222 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data;
1223 struct tx_fwinfo_819x_usb *tx_fwinfo =
1224 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1225 struct usb_device *udev = priv->udev;
1226 int pend;
1227 int status, rt = -1;
1228 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1229 unsigned int idx_pipe;
1230
1231 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1232 /* we are locked here so the two atomic_read and inc are executed
1233 * without interleaves
1234 * !!! For debug purpose
1235 */
1236 if (pend > MAX_TX_URB) {
1237 netdev_dbg(dev, "To discard skb packet!\n");
1238 dev_kfree_skb_any(skb);
1239 return -1;
1240 }
1241
1242 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1243 if (!tx_urb) {
1244 dev_kfree_skb_any(skb);
1245 return -ENOMEM;
1246 }
1247
1248 /* Fill Tx firmware info */
1249 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb));
1250 /* DWORD 0 */
1251 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1252 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1253 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1254 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1255 tcb_desc);
1256 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1257 tx_fwinfo->AllowAggregation = 1;
1258 /* DWORD 1 */
1259 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1260 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1261 } else {
1262 tx_fwinfo->AllowAggregation = 0;
1263 /* DWORD 1 */
1264 tx_fwinfo->RxMF = 0;
1265 tx_fwinfo->RxAMD = 0;
1266 }
1267
1268 /* Protection mode related */
1269 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1270 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1271 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1272 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1273 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1274 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1275 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1276 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1277 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1278
1279 /* Set Bandwidth and sub-channel settings. */
1280 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1281 if (tcb_desc->bPacketBW) {
1282 tx_fwinfo->TxBandwidth = 1;
1283 /* use duplicated mode */
1284 tx_fwinfo->TxSubCarrier = 0;
1285 } else {
1286 tx_fwinfo->TxBandwidth = 0;
1287 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1288 }
1289 } else {
1290 tx_fwinfo->TxBandwidth = 0;
1291 tx_fwinfo->TxSubCarrier = 0;
1292 }
1293
1294 /* Fill Tx descriptor */
1295 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb));
1296 /* DWORD 0 */
1297 tx_desc->LINIP = 0;
1298 tx_desc->CmdInit = 1;
1299 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8;
1300 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1301
1302 /*DWORD 1*/
1303 tx_desc->SecCAMID = 0;
1304 tx_desc->RATid = tcb_desc->RATRIndex;
1305 tx_desc->NoEnc = 1;
1306 tx_desc->SecType = 0x0;
1307 if (tcb_desc->bHwSec) {
1308 switch (priv->ieee80211->pairwise_key_type) {
1309 case KEY_TYPE_WEP40:
1310 case KEY_TYPE_WEP104:
1311 tx_desc->SecType = 0x1;
1312 tx_desc->NoEnc = 0;
1313 break;
1314 case KEY_TYPE_TKIP:
1315 tx_desc->SecType = 0x2;
1316 tx_desc->NoEnc = 0;
1317 break;
1318 case KEY_TYPE_CCMP:
1319 tx_desc->SecType = 0x3;
1320 tx_desc->NoEnc = 0;
1321 break;
1322 case KEY_TYPE_NA:
1323 tx_desc->SecType = 0x0;
1324 tx_desc->NoEnc = 1;
1325 break;
1326 }
1327 }
1328
1329 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1330 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb);
1331
1332 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1333 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1334
1335 /* Fill fields that are required to be initialized in
1336 * all of the descriptors
1337 */
1338 /* DWORD 0 */
1339 tx_desc->FirstSeg = 1;
1340 tx_desc->LastSeg = 1;
1341 tx_desc->OWN = 1;
1342
1343 /* DWORD 2 */
1344 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1345 idx_pipe = 0x5;
1346
1347 /* To submit bulk urb */
1348 usb_fill_bulk_urb(tx_urb, udev,
1349 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1350 skb->len, rtl8192_tx_isr, skb);
1351
1352 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1353 if (!status) {
1354 /* We need to send 0 byte packet whenever
1355 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1356 * been transmitted. Otherwise, it will be halt to wait for
1357 * another packet.
1358 */
1359 bool bSend0Byte = false;
1360 u8 zero = 0;
1361
1362 if (udev->speed == USB_SPEED_HIGH) {
1363 if (skb->len > 0 && skb->len % 512 == 0)
1364 bSend0Byte = true;
1365 } else {
1366 if (skb->len > 0 && skb->len % 64 == 0)
1367 bSend0Byte = true;
1368 }
1369 if (bSend0Byte) {
1370 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1371 if (!tx_urb_zero) {
1372 rt = -ENOMEM;
1373 goto error;
1374 }
1375 usb_fill_bulk_urb(tx_urb_zero, udev,
1376 usb_sndbulkpipe(udev, idx_pipe),
1377 &zero, 0, tx_zero_isr, dev);
1378 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1379 if (status) {
1380 RT_TRACE(COMP_ERR,
1381 "Error TX URB for zero byte %d, error %d",
1382 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1383 status);
1384 goto error;
1385 }
1386 }
1387 netif_trans_update(dev);
1388 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1389 return 0;
1390 }
1391
1392 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1393 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1394 status);
1395
1396 error:
1397 dev_kfree_skb_any(skb);
1398 usb_free_urb(tx_urb);
1399 usb_free_urb(tx_urb_zero);
1400 return rt;
1401 }
1402
rtl8192_usb_initendpoints(struct net_device * dev)1403 static short rtl8192_usb_initendpoints(struct net_device *dev)
1404 {
1405 struct r8192_priv *priv = ieee80211_priv(dev);
1406
1407 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *),
1408 GFP_KERNEL);
1409 if (!priv->rx_urb)
1410 return -ENOMEM;
1411
1412 #ifndef JACKSON_NEW_RX
1413 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1414 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1415 if (!priv->rx_urb[i])
1416 return -ENOMEM;
1417
1418 priv->rx_urb[i]->transfer_buffer =
1419 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1420 if (!priv->rx_urb[i]->transfer_buffer)
1421 return -ENOMEM;
1422
1423 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1424 }
1425 #endif
1426
1427 #ifdef THOMAS_BEACON
1428 {
1429 long align = 0;
1430 void *oldaddr, *newaddr;
1431
1432 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1433 if (!priv->rx_urb[16])
1434 return -ENOMEM;
1435 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1436 if (!priv->oldaddr)
1437 return -ENOMEM;
1438 oldaddr = priv->oldaddr;
1439 align = ((long)oldaddr) & 3;
1440 if (align) {
1441 newaddr = oldaddr + 4 - align;
1442 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1443 } else {
1444 newaddr = oldaddr;
1445 priv->rx_urb[16]->transfer_buffer_length = 16;
1446 }
1447 priv->rx_urb[16]->transfer_buffer = newaddr;
1448 }
1449 #endif
1450
1451 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1452 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1453 GFP_KERNEL);
1454 if (!priv->pp_rxskb) {
1455 kfree(priv->rx_urb);
1456
1457 priv->pp_rxskb = NULL;
1458 priv->rx_urb = NULL;
1459
1460 DMESGE("Endpoint Alloc Failure");
1461 return -ENOMEM;
1462 }
1463
1464 netdev_dbg(dev, "End of initendpoints\n");
1465 return 0;
1466 }
1467
1468 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1469 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1470 {
1471 int i;
1472 struct r8192_priv *priv = ieee80211_priv(dev);
1473
1474 if (priv->rx_urb) {
1475 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1476 usb_kill_urb(priv->rx_urb[i]);
1477 usb_free_urb(priv->rx_urb[i]);
1478 }
1479 kfree(priv->rx_urb);
1480 priv->rx_urb = NULL;
1481 }
1482 kfree(priv->oldaddr);
1483 priv->oldaddr = NULL;
1484
1485 kfree(priv->pp_rxskb);
1486 priv->pp_rxskb = NULL;
1487 }
1488 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1489 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1490 {
1491 int i;
1492 struct r8192_priv *priv = ieee80211_priv(dev);
1493
1494 #ifndef JACKSON_NEW_RX
1495
1496 if (priv->rx_urb) {
1497 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1498 usb_kill_urb(priv->rx_urb[i]);
1499 kfree(priv->rx_urb[i]->transfer_buffer);
1500 usb_free_urb(priv->rx_urb[i]);
1501 }
1502 kfree(priv->rx_urb);
1503 priv->rx_urb = NULL;
1504 }
1505 #else
1506 kfree(priv->rx_urb);
1507 priv->rx_urb = NULL;
1508 kfree(priv->oldaddr);
1509 priv->oldaddr = NULL;
1510
1511 kfree(priv->pp_rxskb);
1512 priv->pp_rxskb = 0;
1513
1514 #endif
1515 }
1516 #endif
1517
1518 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1519 static void rtl8192_link_change(struct net_device *dev)
1520 {
1521 struct r8192_priv *priv = ieee80211_priv(dev);
1522 struct ieee80211_device *ieee = priv->ieee80211;
1523
1524 if (ieee->state == IEEE80211_LINKED) {
1525 rtl8192_net_update(dev);
1526 rtl8192_update_ratr_table(dev);
1527 /* Add this as in pure N mode, wep encryption will use software
1528 * way, but there is no chance to set this as wep will not set
1529 * group key in wext.
1530 */
1531 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1532 ieee->pairwise_key_type == KEY_TYPE_WEP104)
1533 EnableHWSecurityConfig8192(dev);
1534 }
1535 /*update timing params*/
1536 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1537 u32 reg = 0;
1538
1539 read_nic_dword(dev, RCR, ®);
1540 if (priv->ieee80211->state == IEEE80211_LINKED)
1541 priv->ReceiveConfig = reg |= RCR_CBSSID;
1542 else
1543 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1544 write_nic_dword(dev, RCR, reg);
1545 }
1546 }
1547
1548 static const struct ieee80211_qos_parameters def_qos_parameters = {
1549 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1550 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1551 {2, 2, 2, 2},/* aifs */
1552 {0, 0, 0, 0},/* flags */
1553 {0, 0, 0, 0} /* tx_op_limit */
1554 };
1555
rtl8192_update_beacon(struct work_struct * work)1556 static void rtl8192_update_beacon(struct work_struct *work)
1557 {
1558 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1559 update_beacon_wq.work);
1560 struct net_device *dev = priv->ieee80211->dev;
1561 struct ieee80211_device *ieee = priv->ieee80211;
1562 struct ieee80211_network *net = &ieee->current_network;
1563
1564 if (ieee->pHTInfo->bCurrentHTSupport)
1565 HTUpdateSelfAndPeerSetting(ieee, net);
1566 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1567 net->bssht.bdRT2RTLongSlotTime;
1568 rtl8192_update_cap(dev, net->capability);
1569 }
1570
1571 /*
1572 * background support to run QoS activate functionality
1573 */
1574 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1575 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1576 static void rtl8192_qos_activate(struct work_struct *work)
1577 {
1578 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1579 qos_activate);
1580 struct net_device *dev = priv->ieee80211->dev;
1581 struct ieee80211_qos_parameters *qos_parameters =
1582 &priv->ieee80211->current_network.qos_data.parameters;
1583 u8 mode = priv->ieee80211->current_network.mode;
1584 u32 u1bAIFS;
1585 u32 u4bAcParam;
1586 u32 op_limit;
1587 u32 cw_max;
1588 u32 cw_min;
1589 int i;
1590
1591 mutex_lock(&priv->mutex);
1592 if (priv->ieee80211->state != IEEE80211_LINKED)
1593 goto success;
1594 RT_TRACE(COMP_QOS,
1595 "qos active process with associate response received\n");
1596 /* It better set slot time at first
1597 *
1598 * For we just support b/g mode at present, let the slot time at
1599 * 9/20 selection
1600 *
1601 * update the ac parameter to related registers
1602 */
1603 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1604 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1605 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1606 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1607 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1608 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1609 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1610 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1611 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1612 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1613 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1614 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1615 }
1616
1617 success:
1618 mutex_unlock(&priv->mutex);
1619 }
1620
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1621 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1622 int active_network,
1623 struct ieee80211_network *network)
1624 {
1625 int ret = 0;
1626 u32 size = sizeof(struct ieee80211_qos_parameters);
1627
1628 if (priv->ieee80211->state != IEEE80211_LINKED)
1629 return ret;
1630
1631 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1632 return ret;
1633
1634 if (network->flags & NETWORK_HAS_QOS_MASK) {
1635 if (active_network &&
1636 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1637 network->qos_data.active = network->qos_data.supported;
1638
1639 if ((network->qos_data.active == 1) && (active_network == 1) &&
1640 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1641 (network->qos_data.old_param_count !=
1642 network->qos_data.param_count)) {
1643 network->qos_data.old_param_count =
1644 network->qos_data.param_count;
1645 schedule_work(&priv->qos_activate);
1646 RT_TRACE(COMP_QOS,
1647 "QoS parameters change call qos_activate\n");
1648 }
1649 } else {
1650 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1651 &def_qos_parameters, size);
1652
1653 if ((network->qos_data.active == 1) && (active_network == 1)) {
1654 schedule_work(&priv->qos_activate);
1655 RT_TRACE(COMP_QOS,
1656 "QoS was disabled call qos_activate\n");
1657 }
1658 network->qos_data.active = 0;
1659 network->qos_data.supported = 0;
1660 }
1661
1662 return 0;
1663 }
1664
1665 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1666 static int rtl8192_handle_beacon(struct net_device *dev,
1667 struct ieee80211_beacon *beacon,
1668 struct ieee80211_network *network)
1669 {
1670 struct r8192_priv *priv = ieee80211_priv(dev);
1671
1672 rtl8192_qos_handle_probe_response(priv, 1, network);
1673 schedule_delayed_work(&priv->update_beacon_wq, 0);
1674 return 0;
1675 }
1676
1677 /*
1678 * handling the beaconing responses. if we get different QoS setting
1679 * off the network from the associated setting, adjust the QoS
1680 * setting
1681 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1682 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1683 struct ieee80211_network *network)
1684 {
1685 unsigned long flags;
1686 u32 size = sizeof(struct ieee80211_qos_parameters);
1687 int set_qos_param = 0;
1688
1689 if (!priv || !network)
1690 return 0;
1691
1692 if (priv->ieee80211->state != IEEE80211_LINKED)
1693 return 0;
1694
1695 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1696 return 0;
1697
1698 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1699 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1700 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1701 &network->qos_data.parameters,
1702 sizeof(struct ieee80211_qos_parameters));
1703 priv->ieee80211->current_network.qos_data.active = 1;
1704 set_qos_param = 1;
1705 /* update qos parameter for current network */
1706 priv->ieee80211->current_network.qos_data.old_param_count =
1707 priv->ieee80211->current_network.qos_data.param_count;
1708 priv->ieee80211->current_network.qos_data.param_count =
1709 network->qos_data.param_count;
1710 } else {
1711 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1712 &def_qos_parameters, size);
1713 priv->ieee80211->current_network.qos_data.active = 0;
1714 priv->ieee80211->current_network.qos_data.supported = 0;
1715 set_qos_param = 1;
1716 }
1717
1718 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1719
1720 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1721 network->flags,
1722 priv->ieee80211->current_network.qos_data.active);
1723 if (set_qos_param == 1)
1724 schedule_work(&priv->qos_activate);
1725
1726 return 0;
1727 }
1728
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)1729 static int rtl8192_handle_assoc_response(struct net_device *dev,
1730 struct ieee80211_assoc_response_frame *resp,
1731 struct ieee80211_network *network)
1732 {
1733 struct r8192_priv *priv = ieee80211_priv(dev);
1734
1735 rtl8192_qos_association_resp(priv, network);
1736 return 0;
1737 }
1738
rtl8192_update_ratr_table(struct net_device * dev)1739 static void rtl8192_update_ratr_table(struct net_device *dev)
1740 {
1741 struct r8192_priv *priv = ieee80211_priv(dev);
1742 struct ieee80211_device *ieee = priv->ieee80211;
1743 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
1744 u32 ratr_value = 0;
1745 u8 rate_index = 0;
1746
1747 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
1748 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
1749 switch (ieee->mode) {
1750 case IEEE_A:
1751 ratr_value &= 0x00000FF0;
1752 break;
1753 case IEEE_B:
1754 ratr_value &= 0x0000000F;
1755 break;
1756 case IEEE_G:
1757 ratr_value &= 0x00000FF7;
1758 break;
1759 case IEEE_N_24G:
1760 case IEEE_N_5G:
1761 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) {
1762 ratr_value &= 0x0007F007;
1763 } else {
1764 if (priv->rf_type == RF_1T2R)
1765 ratr_value &= 0x000FF007;
1766 else
1767 ratr_value &= 0x0F81F007;
1768 }
1769 break;
1770 default:
1771 break;
1772 }
1773 ratr_value &= 0x0FFFFFFF;
1774 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
1775 ratr_value |= 0x80000000;
1776 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
1777 ieee->pHTInfo->bCurShortGI20MHz)
1778 ratr_value |= 0x80000000;
1779 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
1780 write_nic_byte(dev, UFWP, 1);
1781 }
1782
1783 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
1784 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)1785 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
1786 {
1787 struct r8192_priv *priv = ieee80211_priv(dev);
1788 struct ieee80211_device *ieee = priv->ieee80211;
1789 struct ieee80211_network *network = &ieee->current_network;
1790 int wpa_ie_len = ieee->wpa_ie_len;
1791 struct ieee80211_crypt_data *crypt;
1792 int encrypt;
1793
1794 crypt = ieee->crypt[ieee->tx_keyidx];
1795 /* we use connecting AP's capability instead of only security config
1796 * on our driver to distinguish whether it should use N mode or G mode
1797 */
1798 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
1799 (ieee->host_encrypt && crypt && crypt->ops &&
1800 (strcmp(crypt->ops->name, "WEP") == 0));
1801
1802 /* simply judge */
1803 if (encrypt && (wpa_ie_len == 0)) {
1804 /* wep encryption, no N mode setting */
1805 return false;
1806 } else if ((wpa_ie_len != 0)) {
1807 /* parse pairwise key type */
1808 if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
1809 return true;
1810 else
1811 return false;
1812 } else {
1813 return true;
1814 }
1815
1816 return true;
1817 }
1818
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)1819 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
1820 {
1821 struct r8192_priv *priv = ieee80211_priv(dev);
1822
1823 return priv->ieee80211->bHalfWirelessN24GMode;
1824 }
1825
rtl8192_refresh_supportrate(struct r8192_priv * priv)1826 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
1827 {
1828 struct ieee80211_device *ieee = priv->ieee80211;
1829 /* We do not consider set support rate for ABG mode, only
1830 * HT MCS rate is set here.
1831 */
1832 if (ieee->mode == WIRELESS_MODE_N_24G ||
1833 ieee->mode == WIRELESS_MODE_N_5G)
1834 memcpy(ieee->Regdot11HTOperationalRateSet,
1835 ieee->RegHTSuppRateSet, 16);
1836 else
1837 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
1838 }
1839
rtl8192_getSupportedWireleeMode(struct net_device * dev)1840 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
1841 {
1842 struct r8192_priv *priv = ieee80211_priv(dev);
1843 u8 ret = 0;
1844
1845 switch (priv->rf_chip) {
1846 case RF_8225:
1847 case RF_8256:
1848 case RF_PSEUDO_11N:
1849 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
1850 break;
1851 case RF_8258:
1852 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
1853 break;
1854 default:
1855 ret = WIRELESS_MODE_B;
1856 break;
1857 }
1858 return ret;
1859 }
1860
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)1861 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
1862 {
1863 struct r8192_priv *priv = ieee80211_priv(dev);
1864 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
1865
1866 if (wireless_mode == WIRELESS_MODE_AUTO ||
1867 (wireless_mode & bSupportMode) == 0) {
1868 if (bSupportMode & WIRELESS_MODE_N_24G) {
1869 wireless_mode = WIRELESS_MODE_N_24G;
1870 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
1871 wireless_mode = WIRELESS_MODE_N_5G;
1872 } else if ((bSupportMode & WIRELESS_MODE_A)) {
1873 wireless_mode = WIRELESS_MODE_A;
1874 } else if ((bSupportMode & WIRELESS_MODE_G)) {
1875 wireless_mode = WIRELESS_MODE_G;
1876 } else if ((bSupportMode & WIRELESS_MODE_B)) {
1877 wireless_mode = WIRELESS_MODE_B;
1878 } else {
1879 RT_TRACE(COMP_ERR,
1880 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
1881 __func__, bSupportMode);
1882 wireless_mode = WIRELESS_MODE_B;
1883 }
1884 }
1885 priv->ieee80211->mode = wireless_mode;
1886
1887 if (wireless_mode == WIRELESS_MODE_N_24G ||
1888 wireless_mode == WIRELESS_MODE_N_5G)
1889 priv->ieee80211->pHTInfo->bEnableHT = 1;
1890 else
1891 priv->ieee80211->pHTInfo->bEnableHT = 0;
1892 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
1893 rtl8192_refresh_supportrate(priv);
1894 }
1895
1896 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)1897 static int rtl8192_init_priv_variable(struct net_device *dev)
1898 {
1899 struct r8192_priv *priv = ieee80211_priv(dev);
1900 u8 i;
1901
1902 priv->card_8192 = NIC_8192U;
1903 priv->chan = 1; /* set to channel 1 */
1904 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
1905 priv->ieee80211->iw_mode = IW_MODE_INFRA;
1906 priv->ieee80211->ieee_up = 0;
1907 priv->retry_rts = DEFAULT_RETRY_RTS;
1908 priv->retry_data = DEFAULT_RETRY_DATA;
1909 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
1910 priv->ieee80211->rate = 110; /* 11 mbps */
1911 priv->ieee80211->short_slot = 1;
1912 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
1913 priv->CckPwEnl = 6;
1914 /* for silent reset */
1915 priv->IrpPendingCount = 1;
1916 priv->ResetProgress = RESET_TYPE_NORESET;
1917 priv->bForcedSilentReset = false;
1918 priv->bDisableNormalResetCheck = false;
1919 priv->force_reset = false;
1920
1921 /* we don't use FW read/write RF until stable firmware is available. */
1922 priv->ieee80211->FwRWRF = 0;
1923 priv->ieee80211->current_network.beacon_interval =
1924 DEFAULT_BEACONINTERVAL;
1925 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
1926 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
1927 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
1928 IEEE_SOFTMAC_BEACONS;
1929
1930 priv->ieee80211->active_scan = 1;
1931 priv->ieee80211->modulation =
1932 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
1933 priv->ieee80211->host_encrypt = 1;
1934 priv->ieee80211->host_decrypt = 1;
1935 priv->ieee80211->start_send_beacons = NULL;
1936 priv->ieee80211->stop_send_beacons = NULL;
1937 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
1938 priv->ieee80211->set_chan = rtl8192_set_chan;
1939 priv->ieee80211->link_change = rtl8192_link_change;
1940 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
1941 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
1942 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
1943 priv->ieee80211->init_wmmparam_flag = 0;
1944 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
1945 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
1946 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
1947 priv->ieee80211->qos_support = 1;
1948
1949 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
1950 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
1951 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
1952
1953 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
1954 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
1955 GetHalfNmodeSupportByAPs819xUsb;
1956 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
1957
1958 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
1959 priv->card_type = USB;
1960 priv->ShortRetryLimit = 0x30;
1961 priv->LongRetryLimit = 0x30;
1962 priv->EarlyRxThreshold = 7;
1963 priv->enable_gpio0 = 0;
1964 priv->TransmitConfig =
1965 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
1966 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
1967 /* Short retry limit */
1968 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
1969 /* Long retry limit */
1970 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
1971 /* FALSE: HW provides PLCP length and LENGEXT
1972 * TRUE: SW provides them
1973 */
1974 (false ? TCR_SAT : 0);
1975 priv->ReceiveConfig =
1976 /* accept management/data */
1977 RCR_AMF | RCR_ADF |
1978 /* accept control frame for SW AP needs PS-poll */
1979 RCR_ACF |
1980 /* accept BC/MC/UC */
1981 RCR_AB | RCR_AM | RCR_APM |
1982 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
1983 ((u32)7 << RCR_MXDMA_OFFSET) |
1984 /* Rx FIFO Threshold, 7: No Rx threshold. */
1985 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
1986 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
1987
1988 priv->AcmControl = 0;
1989 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
1990 if (!priv->pFirmware)
1991 return -ENOMEM;
1992
1993 /* rx related queue */
1994 skb_queue_head_init(&priv->rx_queue);
1995 skb_queue_head_init(&priv->skb_queue);
1996
1997 /* Tx related queue */
1998 for (i = 0; i < MAX_QUEUE_SIZE; i++)
1999 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2000 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2001 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2002 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2003 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2004 priv->rf_set_chan = rtl8192_phy_SwChnl;
2005
2006 return 0;
2007 }
2008
2009 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2010 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2011 {
2012 spin_lock_init(&priv->tx_lock);
2013 spin_lock_init(&priv->irq_lock);
2014 mutex_init(&priv->wx_mutex);
2015 mutex_init(&priv->mutex);
2016 }
2017
2018 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2019
2020 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t);
2021 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2022 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2023 static void rtl8192_init_priv_task(struct net_device *dev)
2024 {
2025 struct r8192_priv *priv = ieee80211_priv(dev);
2026
2027 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2028
2029 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2030 rtl819x_watchdog_wqcallback);
2031 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2032 dm_txpower_trackingcallback);
2033 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2034 dm_rf_pathcheck_workitemcallback);
2035 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2036 rtl8192_update_beacon);
2037 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2038 InitialGainOperateWorkItemCallBack);
2039 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2040
2041 tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet);
2042 }
2043
rtl8192_get_eeprom_size(struct net_device * dev)2044 static void rtl8192_get_eeprom_size(struct net_device *dev)
2045 {
2046 u16 curCR = 0;
2047 struct r8192_priv *priv = ieee80211_priv(dev);
2048
2049 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2050 read_nic_word_E(dev, EPROM_CMD, &curCR);
2051 RT_TRACE(COMP_EPROM,
2052 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2053 /* whether need I consider BIT(5?) */
2054 priv->epromtype =
2055 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2056 RT_TRACE(COMP_EPROM,
2057 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2058 }
2059
2060 /* used to swap endian. as ntohl & htonl are not necessary
2061 * to swap endian, so use this instead.
2062 */
endian_swap(u16 * data)2063 static inline u16 endian_swap(u16 *data)
2064 {
2065 u16 tmp = *data;
2066 *data = (tmp >> 8) | (tmp << 8);
2067 return *data;
2068 }
2069
rtl8192_read_eeprom_info(struct net_device * dev)2070 static int rtl8192_read_eeprom_info(struct net_device *dev)
2071 {
2072 u16 wEPROM_ID = 0;
2073 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2074 u8 bLoad_From_EEPOM = false;
2075 struct r8192_priv *priv = ieee80211_priv(dev);
2076 u16 tmpValue = 0;
2077 int i;
2078 int ret;
2079
2080 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2081 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2082 if (ret < 0)
2083 return ret;
2084 wEPROM_ID = (u16)ret;
2085 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2086
2087 if (wEPROM_ID != RTL8190_EEPROM_ID)
2088 RT_TRACE(COMP_ERR,
2089 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2090 wEPROM_ID, RTL8190_EEPROM_ID);
2091 else
2092 bLoad_From_EEPOM = true;
2093
2094 if (bLoad_From_EEPOM) {
2095 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2096 ret = eprom_read(dev, EEPROM_VID >> 1);
2097 if (ret < 0)
2098 return ret;
2099 tmpValue = (u16)ret;
2100 priv->eeprom_vid = endian_swap(&tmpValue);
2101 ret = eprom_read(dev, EEPROM_PID >> 1);
2102 if (ret < 0)
2103 return ret;
2104 priv->eeprom_pid = (u16)ret;
2105 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1);
2106 if (ret < 0)
2107 return ret;
2108 tmpValue = (u16)ret;
2109 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2110 priv->btxpowerdata_readfromEEPORM = true;
2111 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8;
2112 if (ret < 0)
2113 return ret;
2114 priv->eeprom_CustomerID = (u16)ret;
2115 } else {
2116 priv->eeprom_vid = 0;
2117 priv->eeprom_pid = 0;
2118 priv->card_8192_version = VERSION_819XU_B;
2119 priv->eeprom_ChannelPlan = 0;
2120 priv->eeprom_CustomerID = 0;
2121 }
2122 RT_TRACE(COMP_EPROM,
2123 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2124 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2125 priv->eeprom_ChannelPlan);
2126 /* set channelplan from eeprom */
2127 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2128 if (bLoad_From_EEPOM) {
2129 u8 addr[ETH_ALEN];
2130
2131 for (i = 0; i < 6; i += 2) {
2132 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2133 if (ret < 0)
2134 return ret;
2135 *(u16 *)(&addr[i]) = (u16)ret;
2136 }
2137 eth_hw_addr_set(dev, addr);
2138 } else {
2139 eth_hw_addr_set(dev, bMac_Tmp_Addr);
2140 /* should I set IDR0 here? */
2141 }
2142 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2143 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2144 priv->rf_chip = RF_8256;
2145
2146 if (priv->card_8192_version == VERSION_819XU_A) {
2147 /* read Tx power gain offset of legacy OFDM to HT rate */
2148 if (bLoad_From_EEPOM) {
2149 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1));
2150 if (ret < 0)
2151 return ret;
2152 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2153 } else
2154 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER;
2155 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2156 /* read ThermalMeter from EEPROM */
2157 if (bLoad_From_EEPOM) {
2158 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1));
2159 if (ret < 0)
2160 return ret;
2161 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2162 } else
2163 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER;
2164 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2165 /* for tx power track */
2166 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2167 /* read antenna tx power offset of B/C/D to A from EEPROM */
2168 if (bLoad_From_EEPOM) {
2169 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1));
2170 if (ret < 0)
2171 return ret;
2172 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2173 } else
2174 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF;
2175 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2176 /* Read CrystalCap from EEPROM */
2177 if (bLoad_From_EEPOM) {
2178 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1));
2179 if (ret < 0)
2180 return ret;
2181 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2182 } else
2183 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP;
2184 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2185 /* get per-channel Tx power level */
2186 if (bLoad_From_EEPOM) {
2187 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1));
2188 if (ret < 0)
2189 return ret;
2190 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2191 } else
2192 priv->EEPROM_Def_Ver = 1;
2193 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2194 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2195 if (bLoad_From_EEPOM) {
2196 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1));
2197 if (ret < 0)
2198 return ret;
2199 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8;
2200 } else
2201 priv->EEPROMTxPowerLevelCCK = 0x10;
2202 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2203 for (i = 0; i < 3; i++) {
2204 if (bLoad_From_EEPOM) {
2205 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1);
2206 if (ret < 0)
2207 return ret;
2208 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0)
2209 tmpValue = (u16)ret & 0x00ff;
2210 else
2211 tmpValue = ((u16)ret & 0xff00) >> 8;
2212 } else {
2213 tmpValue = 0x10;
2214 }
2215 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2216 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2217 }
2218 } else if (priv->EEPROM_Def_Ver == 1) {
2219 if (bLoad_From_EEPOM) {
2220 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1);
2221 if (ret < 0)
2222 return ret;
2223 tmpValue = ((u16)ret & 0xff00) >> 8;
2224 } else {
2225 tmpValue = 0x10;
2226 }
2227 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2228
2229 if (bLoad_From_EEPOM) {
2230 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1);
2231 if (ret < 0)
2232 return ret;
2233 tmpValue = (u16)ret;
2234 } else
2235 tmpValue = 0x1010;
2236 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2237 if (bLoad_From_EEPOM)
2238 tmpValue = eprom_read(dev,
2239 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1);
2240 else
2241 tmpValue = 0x1010;
2242 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2243 if (bLoad_From_EEPOM)
2244 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1);
2245 else
2246 tmpValue = 0x10;
2247 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2248 } /* endif EEPROM_Def_Ver == 1 */
2249
2250 /* update HAL variables */
2251 for (i = 0; i < 14; i++) {
2252 if (i <= 3)
2253 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2254 else if (i >= 4 && i <= 9)
2255 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2256 else
2257 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2258 }
2259
2260 for (i = 0; i < 14; i++) {
2261 if (priv->EEPROM_Def_Ver == 0) {
2262 if (i <= 3)
2263 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2264 else if (i >= 4 && i <= 9)
2265 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2266 else
2267 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2268 } else if (priv->EEPROM_Def_Ver == 1) {
2269 if (i <= 3)
2270 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2271 else if (i >= 4 && i <= 9)
2272 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2273 else
2274 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2275 }
2276 }
2277 priv->TxPowerDiff = priv->EEPROMPwDiff;
2278 /* Antenna B gain offset to antenna A, bit0~3 */
2279 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2280 /* Antenna C gain offset to antenna A, bit4~7 */
2281 priv->AntennaTxPwDiff[1] =
2282 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2283 /* CrystalCap, bit12~15 */
2284 priv->CrystalCap = priv->EEPROMCrystalCap;
2285 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2286 * 92U does not enable TX power tracking.
2287 */
2288 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2289 } /* end if VersionID == VERSION_819XU_A */
2290
2291 /* for dlink led */
2292 switch (priv->eeprom_CustomerID) {
2293 case EEPROM_CID_RUNTOP:
2294 priv->CustomerID = RT_CID_819x_RUNTOP;
2295 break;
2296
2297 case EEPROM_CID_DLINK:
2298 priv->CustomerID = RT_CID_DLINK;
2299 break;
2300
2301 default:
2302 priv->CustomerID = RT_CID_DEFAULT;
2303 break;
2304 }
2305
2306 switch (priv->CustomerID) {
2307 case RT_CID_819x_RUNTOP:
2308 priv->LedStrategy = SW_LED_MODE2;
2309 break;
2310
2311 case RT_CID_DLINK:
2312 priv->LedStrategy = SW_LED_MODE4;
2313 break;
2314
2315 default:
2316 priv->LedStrategy = SW_LED_MODE0;
2317 break;
2318 }
2319
2320 if (priv->rf_type == RF_1T2R)
2321 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2322 else
2323 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2324
2325 /* We can only know RF type in the function. So we have to init
2326 * DIG RATR table again.
2327 */
2328 init_rate_adaptive(dev);
2329
2330 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2331
2332 return 0;
2333 }
2334
rtl8192_get_channel_map(struct net_device * dev)2335 static short rtl8192_get_channel_map(struct net_device *dev)
2336 {
2337 struct r8192_priv *priv = ieee80211_priv(dev);
2338
2339 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2340 netdev_err(dev,
2341 "rtl8180_init: Error channel plan! Set to default.\n");
2342 priv->ChannelPlan = 0;
2343 }
2344 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2345
2346 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2347 return 0;
2348 }
2349
rtl8192_init(struct net_device * dev)2350 static short rtl8192_init(struct net_device *dev)
2351 {
2352 struct r8192_priv *priv = ieee80211_priv(dev);
2353 int err;
2354
2355 memset(&(priv->stats), 0, sizeof(struct Stats));
2356 memset(priv->txqueue_to_outpipemap, 0, 9);
2357 #ifdef PIPE12
2358 {
2359 int i = 0;
2360 static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2361
2362 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2363 }
2364 #else
2365 {
2366 static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2367
2368 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2369 }
2370 #endif
2371 err = rtl8192_init_priv_variable(dev);
2372 if (err)
2373 return err;
2374
2375 rtl8192_init_priv_lock(priv);
2376 rtl8192_init_priv_task(dev);
2377 rtl8192_get_eeprom_size(dev);
2378 err = rtl8192_read_eeprom_info(dev);
2379 if (err) {
2380 DMESG("Reading EEPROM info failed");
2381 return err;
2382 }
2383 rtl8192_get_channel_map(dev);
2384 init_hal_dm(dev);
2385 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
2386 if (rtl8192_usb_initendpoints(dev) != 0) {
2387 DMESG("Endopoints initialization failed");
2388 return -ENOMEM;
2389 }
2390
2391 return 0;
2392 }
2393
2394 /******************************************************************************
2395 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2396 * not to do all the hw config as its name says
2397 * input: net_device dev
2398 * output: none
2399 * return: none
2400 * notice: This part need to modified according to the rate set we filtered
2401 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2402 static void rtl8192_hwconfig(struct net_device *dev)
2403 {
2404 u32 regRATR = 0, regRRSR = 0;
2405 u8 regBwOpMode = 0, regTmp = 0;
2406 struct r8192_priv *priv = ieee80211_priv(dev);
2407 u32 ratr_value = 0;
2408
2409 /* Set RRSR, RATR, and BW_OPMODE registers */
2410 switch (priv->ieee80211->mode) {
2411 case WIRELESS_MODE_B:
2412 regBwOpMode = BW_OPMODE_20MHZ;
2413 regRATR = RATE_ALL_CCK;
2414 regRRSR = RATE_ALL_CCK;
2415 break;
2416 case WIRELESS_MODE_A:
2417 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2418 regRATR = RATE_ALL_OFDM_AG;
2419 regRRSR = RATE_ALL_OFDM_AG;
2420 break;
2421 case WIRELESS_MODE_G:
2422 regBwOpMode = BW_OPMODE_20MHZ;
2423 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2424 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2425 break;
2426 case WIRELESS_MODE_AUTO:
2427 regBwOpMode = BW_OPMODE_20MHZ;
2428 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2429 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2430 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2431 break;
2432 case WIRELESS_MODE_N_24G:
2433 /* It support CCK rate by default. CCK rate will be filtered
2434 * out only when associated AP does not support it.
2435 */
2436 regBwOpMode = BW_OPMODE_20MHZ;
2437 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2438 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2439 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2440 break;
2441 case WIRELESS_MODE_N_5G:
2442 regBwOpMode = BW_OPMODE_5G;
2443 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2444 RATE_ALL_OFDM_2SS;
2445 regRRSR = RATE_ALL_OFDM_AG;
2446 break;
2447 }
2448
2449 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2450 ratr_value = regRATR;
2451 if (priv->rf_type == RF_1T2R)
2452 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2453 write_nic_dword(dev, RATR0, ratr_value);
2454 write_nic_byte(dev, UFWP, 1);
2455 read_nic_byte(dev, 0x313, ®Tmp);
2456 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2457 write_nic_dword(dev, RRSR, regRRSR);
2458
2459 /* Set Retry Limit here */
2460 write_nic_word(dev, RETRY_LIMIT,
2461 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2462 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2463 /* Set Contention Window here */
2464
2465 /* Set Tx AGC */
2466
2467 /* Set Tx Antenna including Feedback control */
2468
2469 /* Set Auto Rate fallback control */
2470 }
2471
2472 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2473 static bool rtl8192_adapter_start(struct net_device *dev)
2474 {
2475 struct r8192_priv *priv = ieee80211_priv(dev);
2476 u32 dwRegRead = 0;
2477 bool init_status = true;
2478 u8 SECR_value = 0x0;
2479 u8 tmp;
2480
2481 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2482 priv->Rf_Mode = RF_OP_By_SW_3wire;
2483 /* for ASIC power on sequence */
2484 write_nic_byte_E(dev, 0x5f, 0x80);
2485 mdelay(50);
2486 write_nic_byte_E(dev, 0x5f, 0xf0);
2487 write_nic_byte_E(dev, 0x5d, 0x00);
2488 write_nic_byte_E(dev, 0x5e, 0x80);
2489 write_nic_byte(dev, 0x17, 0x37);
2490 mdelay(10);
2491 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2492 /* config CPUReset Register */
2493 /* Firmware Reset or not? */
2494 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2495 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2496
2497 write_nic_dword(dev, CPU_GEN, dwRegRead);
2498 /* config BB. */
2499 rtl8192_BBConfig(dev);
2500
2501 /* Loopback mode or not */
2502 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2503
2504 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2505 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2506 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2507 CPU_GEN_NO_LOOPBACK_SET;
2508 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2509 dwRegRead |= CPU_CCK_LOOPBACK;
2510 else
2511 RT_TRACE(COMP_ERR,
2512 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2513 __func__, priv->LoopbackMode);
2514
2515 write_nic_dword(dev, CPU_GEN, dwRegRead);
2516
2517 /* after reset cpu, we need wait for a seconds to write in register. */
2518 udelay(500);
2519
2520 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2521 read_nic_byte_E(dev, 0x5f, &tmp);
2522 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2523
2524 /* Set Hardware */
2525 rtl8192_hwconfig(dev);
2526
2527 /* turn on Tx/Rx */
2528 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2529
2530 /* set IDR0 here */
2531 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2532 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2533
2534 /* set RCR */
2535 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2536
2537 /* Initialize Number of Reserved Pages in Firmware Queue */
2538 write_nic_dword(dev, RQPN1,
2539 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2540 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2541 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2542 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2543 write_nic_dword(dev, RQPN2,
2544 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2545 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2546 write_nic_dword(dev, RQPN3,
2547 APPLIED_RESERVED_QUEUE_IN_FW |
2548 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2549 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2550
2551 /* Set AckTimeout */
2552 /* TODO: (it value is only for FPGA version). need to be changed!! */
2553 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2554
2555 if (priv->ResetProgress == RESET_TYPE_NORESET)
2556 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2557 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2558 CamResetAllEntry(dev);
2559 SECR_value |= SCR_TxEncEnable;
2560 SECR_value |= SCR_RxDecEnable;
2561 SECR_value |= SCR_NoSKMC;
2562 write_nic_byte(dev, SECR, SECR_value);
2563 }
2564
2565 /* Beacon related */
2566 write_nic_word(dev, ATIMWND, 2);
2567 write_nic_word(dev, BCN_INTERVAL, 100);
2568
2569 #define DEFAULT_EDCA 0x005e4332
2570 {
2571 int i;
2572
2573 for (i = 0; i < QOS_QUEUE_NUM; i++)
2574 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2575 }
2576
2577 rtl8192_phy_configmac(dev);
2578
2579 if (priv->card_8192_version == VERSION_819XU_A) {
2580 rtl8192_phy_getTxPower(dev);
2581 rtl8192_phy_setTxPower(dev, priv->chan);
2582 }
2583
2584 /* Firmware download */
2585 init_status = init_firmware(dev);
2586 if (!init_status) {
2587 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2588 __func__);
2589 return init_status;
2590 }
2591 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2592
2593 /* config RF. */
2594 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2595 rtl8192_phy_RFConfig(dev);
2596 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2597 }
2598
2599 if (priv->ieee80211->FwRWRF)
2600 /* We can force firmware to do RF-R/W */
2601 priv->Rf_Mode = RF_OP_By_FW;
2602 else
2603 priv->Rf_Mode = RF_OP_By_SW_3wire;
2604
2605 rtl8192_phy_updateInitGain(dev);
2606 /*--set CCK and OFDM Block "ON"--*/
2607 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2608 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2609
2610 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2611 /* if D or C cut */
2612 u8 tmpvalue;
2613
2614 read_nic_byte(dev, 0x301, &tmpvalue);
2615 if (tmpvalue == 0x03) {
2616 priv->bDcut = true;
2617 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2618 } else {
2619 priv->bDcut = false;
2620 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2621 }
2622 dm_initialize_txpower_tracking(dev);
2623
2624 if (priv->bDcut) {
2625 u32 i, TempCCk;
2626 u32 tmpRegA = rtl8192_QueryBBReg(dev,
2627 rOFDM0_XATxIQImbalance,
2628 bMaskDWord);
2629
2630 for (i = 0; i < TxBBGainTableLength; i++) {
2631 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2632 priv->rfa_txpowertrackingindex = (u8)i;
2633 priv->rfa_txpowertrackingindex_real =
2634 (u8)i;
2635 priv->rfa_txpowertracking_default =
2636 priv->rfa_txpowertrackingindex;
2637 break;
2638 }
2639 }
2640
2641 TempCCk = rtl8192_QueryBBReg(dev,
2642 rCCK0_TxFilter1,
2643 bMaskByte2);
2644
2645 for (i = 0; i < CCKTxBBGainTableLength; i++) {
2646 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2647 priv->cck_present_attenuation_20Mdefault = (u8)i;
2648 break;
2649 }
2650 }
2651 priv->cck_present_attenuation_40Mdefault = 0;
2652 priv->cck_present_attenuation_difference = 0;
2653 priv->cck_present_attenuation =
2654 priv->cck_present_attenuation_20Mdefault;
2655 }
2656 }
2657 write_nic_byte(dev, 0x87, 0x0);
2658
2659 return init_status;
2660 }
2661
2662 /* this configures registers for beacon tx and enables it via
2663 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2664 * be used to stop beacon transmission
2665 */
2666 /***************************************************************************
2667 * -------------------------------NET STUFF---------------------------
2668 ***************************************************************************/
2669
rtl8192_stats(struct net_device * dev)2670 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
2671 {
2672 struct r8192_priv *priv = ieee80211_priv(dev);
2673
2674 return &priv->ieee80211->stats;
2675 }
2676
HalTxCheckStuck819xUsb(struct net_device * dev)2677 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
2678 {
2679 struct r8192_priv *priv = ieee80211_priv(dev);
2680 u16 RegTxCounter;
2681 bool bStuck = false;
2682
2683 read_nic_word(dev, 0x128, &RegTxCounter);
2684 RT_TRACE(COMP_RESET,
2685 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
2686 RegTxCounter, priv->TxCounter);
2687 if (priv->TxCounter == RegTxCounter)
2688 bStuck = true;
2689
2690 priv->TxCounter = RegTxCounter;
2691
2692 return bStuck;
2693 }
2694
2695 /*
2696 * <Assumption: RT_TX_SPINLOCK is acquired.>
2697 * First added: 2006.11.19 by emily
2698 */
TxCheckStuck(struct net_device * dev)2699 static RESET_TYPE TxCheckStuck(struct net_device *dev)
2700 {
2701 struct r8192_priv *priv = ieee80211_priv(dev);
2702 u8 QueueID;
2703 bool bCheckFwTxCnt = false;
2704
2705 /* Decide such threshold according to current power save mode */
2706
2707 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
2708 if (QueueID == TXCMD_QUEUE)
2709 continue;
2710 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
2711 continue;
2712
2713 bCheckFwTxCnt = true;
2714 }
2715 if (bCheckFwTxCnt) {
2716 if (HalTxCheckStuck819xUsb(dev)) {
2717 RT_TRACE(COMP_RESET,
2718 "%s: Fw indicates no Tx condition!\n",
2719 __func__);
2720 return RESET_TYPE_SILENT;
2721 }
2722 }
2723 return RESET_TYPE_NORESET;
2724 }
2725
HalRxCheckStuck819xUsb(struct net_device * dev)2726 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
2727 {
2728 u16 RegRxCounter;
2729 struct r8192_priv *priv = ieee80211_priv(dev);
2730 bool bStuck = false;
2731 static u8 rx_chk_cnt;
2732
2733 read_nic_word(dev, 0x130, &RegRxCounter);
2734 RT_TRACE(COMP_RESET,
2735 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
2736 RegRxCounter, priv->RxCounter);
2737 /* If rssi is small, we should check rx for long time because of bad rx.
2738 * or maybe it will continuous silent reset every 2 seconds.
2739 */
2740 rx_chk_cnt++;
2741 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) {
2742 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
2743 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) &&
2744 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) ||
2745 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) {
2746 if (rx_chk_cnt < 2)
2747 return bStuck;
2748
2749 rx_chk_cnt = 0;
2750 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) ||
2751 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) &&
2752 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) {
2753 if (rx_chk_cnt < 4)
2754 return bStuck;
2755
2756 rx_chk_cnt = 0;
2757 } else {
2758 if (rx_chk_cnt < 8)
2759 return bStuck;
2760
2761 rx_chk_cnt = 0;
2762 }
2763
2764 if (priv->RxCounter == RegRxCounter)
2765 bStuck = true;
2766
2767 priv->RxCounter = RegRxCounter;
2768
2769 return bStuck;
2770 }
2771
RxCheckStuck(struct net_device * dev)2772 static RESET_TYPE RxCheckStuck(struct net_device *dev)
2773 {
2774 struct r8192_priv *priv = ieee80211_priv(dev);
2775 bool bRxCheck = false;
2776
2777 if (priv->IrpPendingCount > 1)
2778 bRxCheck = true;
2779
2780 if (bRxCheck) {
2781 if (HalRxCheckStuck819xUsb(dev)) {
2782 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
2783 return RESET_TYPE_SILENT;
2784 }
2785 }
2786 return RESET_TYPE_NORESET;
2787 }
2788
2789 /*
2790 * This function is called by Checkforhang to check whether we should
2791 * ask OS to reset driver
2792 *
2793 * Note:NIC with USB interface sholud not call this function because we
2794 * cannot scan descriptor to judge whether there is tx stuck.
2795 * Note: This function may be required to be rewrite for Vista OS.
2796 * <<<Assumption: Tx spinlock has been acquired >>>
2797 *
2798 * 8185 and 8185b does not implement this function.
2799 */
rtl819x_ifcheck_resetornot(struct net_device * dev)2800 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
2801 {
2802 struct r8192_priv *priv = ieee80211_priv(dev);
2803 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
2804 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
2805 RT_RF_POWER_STATE rfState;
2806
2807 rfState = priv->ieee80211->eRFPowerState;
2808
2809 TxResetType = TxCheckStuck(dev);
2810 if (rfState != eRfOff ||
2811 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
2812 /* If driver is in the status of firmware download failure,
2813 * driver skips RF initialization and RF is in turned off
2814 * state. Driver should check whether Rx stuck and do silent
2815 * reset. And if driver is in firmware download failure status,
2816 * driver should initialize RF in the following silent reset
2817 * procedure
2818 *
2819 * Driver should not check RX stuck in IBSS mode because it is
2820 * required to set Check BSSID in order to send beacon,
2821 * however, if check BSSID is set, STA cannot hear any packet
2822 * at all.
2823 */
2824 RxResetType = RxCheckStuck(dev);
2825 }
2826 if (TxResetType == RESET_TYPE_NORMAL ||
2827 RxResetType == RESET_TYPE_NORMAL) {
2828 return RESET_TYPE_NORMAL;
2829 } else if (TxResetType == RESET_TYPE_SILENT ||
2830 RxResetType == RESET_TYPE_SILENT) {
2831 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
2832 return RESET_TYPE_SILENT;
2833 } else {
2834 return RESET_TYPE_NORESET;
2835 }
2836 }
2837
2838 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
2839 static int _rtl8192_up(struct net_device *dev);
2840 static int rtl8192_close(struct net_device *dev);
2841
CamRestoreAllEntry(struct net_device * dev)2842 static void CamRestoreAllEntry(struct net_device *dev)
2843 {
2844 u8 EntryId = 0;
2845 struct r8192_priv *priv = ieee80211_priv(dev);
2846 u8 *MacAddr = priv->ieee80211->current_network.bssid;
2847
2848 static u8 CAM_CONST_ADDR[4][6] = {
2849 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
2850 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
2851 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
2852 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
2853 static u8 CAM_CONST_BROAD[] = {
2854 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2855
2856 RT_TRACE(COMP_SEC, "%s:\n", __func__);
2857
2858 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
2859 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
2860 for (EntryId = 0; EntryId < 4; EntryId++) {
2861 MacAddr = CAM_CONST_ADDR[EntryId];
2862 setKey(dev, EntryId, EntryId,
2863 priv->ieee80211->pairwise_key_type,
2864 MacAddr, 0, NULL);
2865 }
2866
2867 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
2868 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
2869 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
2870 (const u8 *)dev->dev_addr, 0, NULL);
2871 else
2872 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
2873 MacAddr, 0, NULL);
2874 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
2875 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
2876 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
2877 (const u8 *)dev->dev_addr, 0, NULL);
2878 else
2879 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
2880 MacAddr, 0, NULL);
2881 }
2882
2883 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
2884 MacAddr = CAM_CONST_BROAD;
2885 for (EntryId = 1; EntryId < 4; EntryId++) {
2886 setKey(dev, EntryId, EntryId,
2887 priv->ieee80211->group_key_type,
2888 MacAddr, 0, NULL);
2889 }
2890 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
2891 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
2892 CAM_CONST_ADDR[0], 0, NULL);
2893 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
2894 MacAddr = CAM_CONST_BROAD;
2895 for (EntryId = 1; EntryId < 4; EntryId++) {
2896 setKey(dev, EntryId, EntryId,
2897 priv->ieee80211->group_key_type,
2898 MacAddr, 0, NULL);
2899 }
2900
2901 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
2902 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
2903 CAM_CONST_ADDR[0], 0, NULL);
2904 }
2905 }
2906
2907 /* This function is used to fix Tx/Rx stop bug temporarily.
2908 * This function will do "system reset" to NIC when Tx or Rx is stuck.
2909 * The method checking Tx/Rx stuck of this function is supported by FW,
2910 * which reports Tx and Rx counter to register 0x128 and 0x130.
2911 */
rtl819x_ifsilentreset(struct net_device * dev)2912 static void rtl819x_ifsilentreset(struct net_device *dev)
2913 {
2914 struct r8192_priv *priv = ieee80211_priv(dev);
2915 u8 reset_times = 0;
2916 int reset_status = 0;
2917 struct ieee80211_device *ieee = priv->ieee80211;
2918
2919 /* If we need to check CCK stop, please uncomment this line. */
2920 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
2921
2922 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2923 RESET_START:
2924
2925 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
2926
2927 /* Set the variable for reset. */
2928 priv->ResetProgress = RESET_TYPE_SILENT;
2929 mutex_lock(&priv->wx_mutex);
2930 if (priv->up == 0) {
2931 RT_TRACE(COMP_ERR,
2932 "%s():the driver is not up! return\n",
2933 __func__);
2934 mutex_unlock(&priv->wx_mutex);
2935 return;
2936 }
2937 priv->up = 0;
2938 RT_TRACE(COMP_RESET,
2939 "%s():======>start to down the driver\n",
2940 __func__);
2941
2942 rtl8192_rtx_disable(dev);
2943 rtl8192_cancel_deferred_work(priv);
2944 deinit_hal_dm(dev);
2945 del_timer_sync(&priv->watch_dog_timer);
2946
2947 ieee->sync_scan_hurryup = 1;
2948 if (ieee->state == IEEE80211_LINKED) {
2949 mutex_lock(&ieee->wx_mutex);
2950 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
2951 ieee80211_stop_send_beacons(priv->ieee80211);
2952 del_timer_sync(&ieee->associate_timer);
2953 cancel_delayed_work(&ieee->associate_retry_wq);
2954 ieee80211_stop_scan(ieee);
2955 netif_carrier_off(dev);
2956 mutex_unlock(&ieee->wx_mutex);
2957 } else {
2958 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
2959 ieee80211_softmac_stop_protocol(priv->ieee80211);
2960 }
2961 mutex_unlock(&priv->wx_mutex);
2962 RT_TRACE(COMP_RESET,
2963 "%s():<==========down process is finished\n",
2964 __func__);
2965 RT_TRACE(COMP_RESET,
2966 "%s():===========>start up the driver\n",
2967 __func__);
2968 reset_status = _rtl8192_up(dev);
2969
2970 RT_TRACE(COMP_RESET,
2971 "%s():<===========up process is finished\n",
2972 __func__);
2973 if (reset_status == -EAGAIN) {
2974 if (reset_times < 3) {
2975 reset_times++;
2976 goto RESET_START;
2977 } else {
2978 RT_TRACE(COMP_ERR,
2979 " ERR!!! %s(): Reset Failed!!\n",
2980 __func__);
2981 }
2982 }
2983 ieee->is_silent_reset = 1;
2984 EnableHWSecurityConfig8192(dev);
2985 if (ieee->state == IEEE80211_LINKED &&
2986 ieee->iw_mode == IW_MODE_INFRA) {
2987 ieee->set_chan(ieee->dev,
2988 ieee->current_network.channel);
2989
2990 queue_work(ieee->wq, &ieee->associate_complete_wq);
2991
2992 } else if (ieee->state == IEEE80211_LINKED &&
2993 ieee->iw_mode == IW_MODE_ADHOC) {
2994 ieee->set_chan(ieee->dev,
2995 ieee->current_network.channel);
2996 ieee->link_change(ieee->dev);
2997
2998 ieee80211_start_send_beacons(ieee);
2999
3000 if (ieee->data_hard_resume)
3001 ieee->data_hard_resume(ieee->dev);
3002 netif_carrier_on(ieee->dev);
3003 }
3004
3005 CamRestoreAllEntry(dev);
3006
3007 priv->ResetProgress = RESET_TYPE_NORESET;
3008 priv->reset_count++;
3009
3010 priv->bForcedSilentReset = false;
3011 priv->bResetInProgress = false;
3012
3013 /* For test --> force write UFWP. */
3014 write_nic_byte(dev, UFWP, 1);
3015 RT_TRACE(COMP_RESET,
3016 "Reset finished!! ====>[%d]\n",
3017 priv->reset_count);
3018 }
3019 }
3020
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3021 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3022 u32 *TotalRxDataNum)
3023 {
3024 u16 SlotIndex;
3025 u16 i;
3026
3027 *TotalRxBcnNum = 0;
3028 *TotalRxDataNum = 0;
3029
3030 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3031 (priv->ieee80211->LinkDetectInfo.SlotNum);
3032 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3033 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3034 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3035 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3036 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3037 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3038 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3039 }
3040 }
3041
rtl819x_watchdog_wqcallback(struct work_struct * work)3042 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3043 {
3044 struct delayed_work *dwork = to_delayed_work(work);
3045 struct r8192_priv *priv = container_of(dwork,
3046 struct r8192_priv, watch_dog_wq);
3047 struct net_device *dev = priv->ieee80211->dev;
3048 struct ieee80211_device *ieee = priv->ieee80211;
3049 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3050 static u8 check_reset_cnt;
3051 bool bBusyTraffic = false;
3052 u32 TotalRxBcnNum = 0;
3053 u32 TotalRxDataNum = 0;
3054
3055 if (!priv->up)
3056 return;
3057 hal_dm_watchdog(dev);
3058
3059 /* to get busy traffic condition */
3060 if (ieee->state == IEEE80211_LINKED) {
3061 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3062 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3063 bBusyTraffic = true;
3064 }
3065 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3066 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3067 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3068 }
3069 /* for AP roaming */
3070 if (priv->ieee80211->state == IEEE80211_LINKED &&
3071 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3072 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3073 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3074 #ifdef TODO
3075 if (rfState == eRfOff)
3076 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3077 #endif
3078 netdev_dbg(dev,
3079 "===>%s(): AP is power off, connect another one\n",
3080 __func__);
3081 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3082 notify_wx_assoc_event(priv->ieee80211);
3083 RemovePeerTS(priv->ieee80211,
3084 priv->ieee80211->current_network.bssid);
3085 priv->ieee80211->link_change(dev);
3086 queue_work(priv->ieee80211->wq,
3087 &priv->ieee80211->associate_procedure_wq);
3088 }
3089 }
3090 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3091 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3092 /* check if reset the driver */
3093 if (check_reset_cnt++ >= 3) {
3094 ResetType = rtl819x_ifcheck_resetornot(dev);
3095 check_reset_cnt = 3;
3096 }
3097 /* This is control by OID set in Pomelo */
3098 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3099 (priv->bForcedSilentReset ||
3100 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3101 RT_TRACE(COMP_RESET,
3102 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3103 __func__, priv->force_reset, priv->ResetProgress,
3104 priv->bForcedSilentReset,
3105 priv->bDisableNormalResetCheck, ResetType);
3106 rtl819x_ifsilentreset(dev);
3107 }
3108 priv->force_reset = false;
3109 priv->bForcedSilentReset = false;
3110 priv->bResetInProgress = false;
3111 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3112 }
3113
watch_dog_timer_callback(struct timer_list * t)3114 static void watch_dog_timer_callback(struct timer_list *t)
3115 {
3116 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
3117
3118 schedule_delayed_work(&priv->watch_dog_wq, 0);
3119 mod_timer(&priv->watch_dog_timer,
3120 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3121 }
3122
_rtl8192_up(struct net_device * dev)3123 static int _rtl8192_up(struct net_device *dev)
3124 {
3125 struct r8192_priv *priv = ieee80211_priv(dev);
3126 int init_status = 0;
3127
3128 priv->up = 1;
3129 priv->ieee80211->ieee_up = 1;
3130 RT_TRACE(COMP_INIT, "Bringing up iface");
3131 init_status = rtl8192_adapter_start(dev);
3132 if (!init_status) {
3133 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3134 __func__);
3135 priv->up = priv->ieee80211->ieee_up = 0;
3136 return -EAGAIN;
3137 }
3138 RT_TRACE(COMP_INIT, "start adapter finished\n");
3139 rtl8192_rx_enable(dev);
3140 if (priv->ieee80211->state != IEEE80211_LINKED)
3141 ieee80211_softmac_start_protocol(priv->ieee80211);
3142 ieee80211_reset_queue(priv->ieee80211);
3143 watch_dog_timer_callback(&priv->watch_dog_timer);
3144 if (!netif_queue_stopped(dev))
3145 netif_start_queue(dev);
3146 else
3147 netif_wake_queue(dev);
3148
3149 return 0;
3150 }
3151
rtl8192_open(struct net_device * dev)3152 static int rtl8192_open(struct net_device *dev)
3153 {
3154 struct r8192_priv *priv = ieee80211_priv(dev);
3155 int ret;
3156
3157 mutex_lock(&priv->wx_mutex);
3158 ret = rtl8192_up(dev);
3159 mutex_unlock(&priv->wx_mutex);
3160 return ret;
3161 }
3162
rtl8192_up(struct net_device * dev)3163 int rtl8192_up(struct net_device *dev)
3164 {
3165 struct r8192_priv *priv = ieee80211_priv(dev);
3166
3167 if (priv->up == 1)
3168 return -1;
3169
3170 return _rtl8192_up(dev);
3171 }
3172
rtl8192_close(struct net_device * dev)3173 static int rtl8192_close(struct net_device *dev)
3174 {
3175 struct r8192_priv *priv = ieee80211_priv(dev);
3176 int ret;
3177
3178 mutex_lock(&priv->wx_mutex);
3179
3180 ret = rtl8192_down(dev);
3181
3182 mutex_unlock(&priv->wx_mutex);
3183
3184 return ret;
3185 }
3186
rtl8192_down(struct net_device * dev)3187 int rtl8192_down(struct net_device *dev)
3188 {
3189 struct r8192_priv *priv = ieee80211_priv(dev);
3190 int i;
3191
3192 if (priv->up == 0)
3193 return -1;
3194
3195 priv->up = 0;
3196 priv->ieee80211->ieee_up = 0;
3197 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3198 /* FIXME */
3199 if (!netif_queue_stopped(dev))
3200 netif_stop_queue(dev);
3201
3202 rtl8192_rtx_disable(dev);
3203
3204 /* Tx related queue release */
3205 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3206 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3207 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3208 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3209
3210 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3211 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3212
3213 /* as cancel_delayed_work will del work->timer, so if work is not
3214 * defined as struct delayed_work, it will corrupt
3215 */
3216 rtl8192_cancel_deferred_work(priv);
3217 deinit_hal_dm(dev);
3218 del_timer_sync(&priv->watch_dog_timer);
3219
3220 ieee80211_softmac_stop_protocol(priv->ieee80211);
3221 memset(&priv->ieee80211->current_network, 0,
3222 offsetof(struct ieee80211_network, list));
3223 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3224
3225 return 0;
3226 }
3227
rtl8192_commit(struct net_device * dev)3228 void rtl8192_commit(struct net_device *dev)
3229 {
3230 struct r8192_priv *priv = ieee80211_priv(dev);
3231
3232 if (priv->up == 0)
3233 return;
3234 priv->up = 0;
3235
3236 rtl8192_cancel_deferred_work(priv);
3237 del_timer_sync(&priv->watch_dog_timer);
3238
3239 ieee80211_softmac_stop_protocol(priv->ieee80211);
3240
3241 rtl8192_rtx_disable(dev);
3242 _rtl8192_up(dev);
3243 }
3244
rtl8192_restart(struct work_struct * work)3245 static void rtl8192_restart(struct work_struct *work)
3246 {
3247 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3248 reset_wq);
3249 struct net_device *dev = priv->ieee80211->dev;
3250
3251 mutex_lock(&priv->wx_mutex);
3252
3253 rtl8192_commit(dev);
3254
3255 mutex_unlock(&priv->wx_mutex);
3256 }
3257
r8192_set_multicast(struct net_device * dev)3258 static void r8192_set_multicast(struct net_device *dev)
3259 {
3260 struct r8192_priv *priv = ieee80211_priv(dev);
3261 short promisc;
3262
3263 /* FIXME FIXME */
3264
3265 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3266
3267 if (promisc != priv->promisc)
3268
3269 priv->promisc = promisc;
3270 }
3271
r8192_set_mac_adr(struct net_device * dev,void * mac)3272 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3273 {
3274 struct r8192_priv *priv = ieee80211_priv(dev);
3275 struct sockaddr *addr = mac;
3276
3277 mutex_lock(&priv->wx_mutex);
3278
3279 eth_hw_addr_set(dev, addr->sa_data);
3280
3281 schedule_work(&priv->reset_wq);
3282 mutex_unlock(&priv->wx_mutex);
3283
3284 return 0;
3285 }
3286
3287 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3288 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3289 {
3290 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3291 struct iwreq *wrq = (struct iwreq *)rq;
3292 int ret = -1;
3293 struct ieee80211_device *ieee = priv->ieee80211;
3294 u32 key[4];
3295 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3296 struct iw_point *p = &wrq->u.data;
3297 struct ieee_param *ipw = NULL;
3298
3299 mutex_lock(&priv->wx_mutex);
3300
3301 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3302 ret = -EINVAL;
3303 goto out;
3304 }
3305
3306 ipw = memdup_user(p->pointer, p->length);
3307 if (IS_ERR(ipw)) {
3308 ret = PTR_ERR(ipw);
3309 goto out;
3310 }
3311
3312 switch (cmd) {
3313 case RTL_IOCTL_WPA_SUPPLICANT:
3314 /* parse here for HW security */
3315 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3316 if (ipw->u.crypt.set_tx) {
3317 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3318 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3319 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3320 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3321 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3322 if (ipw->u.crypt.key_len == 13)
3323 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3324 else if (ipw->u.crypt.key_len == 5)
3325 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3326 } else {
3327 ieee->pairwise_key_type = KEY_TYPE_NA;
3328 }
3329
3330 if (ieee->pairwise_key_type) {
3331 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3332 EnableHWSecurityConfig8192(dev);
3333 /* We fill both index entry and 4th
3334 * entry for pairwise key as in IPW
3335 * interface, adhoc will only get here,
3336 * so we need index entry for its
3337 * default key serching!
3338 */
3339 setKey(dev, 4, ipw->u.crypt.idx,
3340 ieee->pairwise_key_type,
3341 (u8 *)ieee->ap_mac_addr,
3342 0, key);
3343 if (ieee->auth_mode != 2)
3344 setKey(dev, ipw->u.crypt.idx,
3345 ipw->u.crypt.idx,
3346 ieee->pairwise_key_type,
3347 (u8 *)ieee->ap_mac_addr,
3348 0, key);
3349 }
3350 } else {
3351 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3352 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3353 ieee->group_key_type = KEY_TYPE_CCMP;
3354 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3355 ieee->group_key_type = KEY_TYPE_TKIP;
3356 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3357 if (ipw->u.crypt.key_len == 13)
3358 ieee->group_key_type = KEY_TYPE_WEP104;
3359 else if (ipw->u.crypt.key_len == 5)
3360 ieee->group_key_type = KEY_TYPE_WEP40;
3361 } else {
3362 ieee->group_key_type = KEY_TYPE_NA;
3363 }
3364
3365 if (ieee->group_key_type) {
3366 setKey(dev, ipw->u.crypt.idx,
3367 /* KeyIndex */
3368 ipw->u.crypt.idx,
3369 /* KeyType */
3370 ieee->group_key_type,
3371 /* MacAddr */
3372 broadcast_addr,
3373 /* DefaultKey */
3374 0,
3375 /* KeyContent */
3376 key);
3377 }
3378 }
3379 }
3380 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3381 &wrq->u.data);
3382 break;
3383
3384 default:
3385 ret = -EOPNOTSUPP;
3386 break;
3387 }
3388 kfree(ipw);
3389 ipw = NULL;
3390 out:
3391 mutex_unlock(&priv->wx_mutex);
3392 return ret;
3393 }
3394
HwRateToMRate90(bool bIsHT,u8 rate)3395 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3396 {
3397 u8 ret_rate = 0xff;
3398
3399 if (!bIsHT) {
3400 switch (rate) {
3401 case DESC90_RATE1M:
3402 ret_rate = MGN_1M;
3403 break;
3404 case DESC90_RATE2M:
3405 ret_rate = MGN_2M;
3406 break;
3407 case DESC90_RATE5_5M:
3408 ret_rate = MGN_5_5M;
3409 break;
3410 case DESC90_RATE11M:
3411 ret_rate = MGN_11M;
3412 break;
3413 case DESC90_RATE6M:
3414 ret_rate = MGN_6M;
3415 break;
3416 case DESC90_RATE9M:
3417 ret_rate = MGN_9M;
3418 break;
3419 case DESC90_RATE12M:
3420 ret_rate = MGN_12M;
3421 break;
3422 case DESC90_RATE18M:
3423 ret_rate = MGN_18M;
3424 break;
3425 case DESC90_RATE24M:
3426 ret_rate = MGN_24M;
3427 break;
3428 case DESC90_RATE36M:
3429 ret_rate = MGN_36M;
3430 break;
3431 case DESC90_RATE48M:
3432 ret_rate = MGN_48M;
3433 break;
3434 case DESC90_RATE54M:
3435 ret_rate = MGN_54M;
3436 break;
3437
3438 default:
3439 ret_rate = 0xff;
3440 RT_TRACE(COMP_RECV,
3441 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3442 __func__, rate, bIsHT);
3443 break;
3444 }
3445
3446 } else {
3447 switch (rate) {
3448 case DESC90_RATEMCS0:
3449 ret_rate = MGN_MCS0;
3450 break;
3451 case DESC90_RATEMCS1:
3452 ret_rate = MGN_MCS1;
3453 break;
3454 case DESC90_RATEMCS2:
3455 ret_rate = MGN_MCS2;
3456 break;
3457 case DESC90_RATEMCS3:
3458 ret_rate = MGN_MCS3;
3459 break;
3460 case DESC90_RATEMCS4:
3461 ret_rate = MGN_MCS4;
3462 break;
3463 case DESC90_RATEMCS5:
3464 ret_rate = MGN_MCS5;
3465 break;
3466 case DESC90_RATEMCS6:
3467 ret_rate = MGN_MCS6;
3468 break;
3469 case DESC90_RATEMCS7:
3470 ret_rate = MGN_MCS7;
3471 break;
3472 case DESC90_RATEMCS8:
3473 ret_rate = MGN_MCS8;
3474 break;
3475 case DESC90_RATEMCS9:
3476 ret_rate = MGN_MCS9;
3477 break;
3478 case DESC90_RATEMCS10:
3479 ret_rate = MGN_MCS10;
3480 break;
3481 case DESC90_RATEMCS11:
3482 ret_rate = MGN_MCS11;
3483 break;
3484 case DESC90_RATEMCS12:
3485 ret_rate = MGN_MCS12;
3486 break;
3487 case DESC90_RATEMCS13:
3488 ret_rate = MGN_MCS13;
3489 break;
3490 case DESC90_RATEMCS14:
3491 ret_rate = MGN_MCS14;
3492 break;
3493 case DESC90_RATEMCS15:
3494 ret_rate = MGN_MCS15;
3495 break;
3496 case DESC90_RATEMCS32:
3497 ret_rate = 0x80 | 0x20;
3498 break;
3499
3500 default:
3501 ret_rate = 0xff;
3502 RT_TRACE(COMP_RECV,
3503 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3504 __func__, rate, bIsHT);
3505 break;
3506 }
3507 }
3508
3509 return ret_rate;
3510 }
3511
3512 /*
3513 * Function: UpdateRxPktTimeStamp
3514 * Overview: Record the TSF time stamp when receiving a packet
3515 *
3516 * Input:
3517 * PADAPTER Adapter
3518 * PRT_RFD pRfd,
3519 *
3520 * Output:
3521 * PRT_RFD pRfd
3522 * (pRfd->Status.TimeStampHigh is updated)
3523 * (pRfd->Status.TimeStampLow is updated)
3524 * Return:
3525 * None
3526 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3527 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3528 struct ieee80211_rx_stats *stats)
3529 {
3530 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3531
3532 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3533 stats->mac_time[0] = priv->LastRxDescTSFLow;
3534 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3535 } else {
3536 priv->LastRxDescTSFLow = stats->mac_time[0];
3537 priv->LastRxDescTSFHigh = stats->mac_time[1];
3538 }
3539 }
3540
3541 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3542 static long rtl819x_translate_todbm(u8 signal_strength_index)
3543 {
3544 long signal_power; /* in dBm. */
3545
3546 /* Translate to dBm (x=0.5y-95). */
3547 signal_power = (long)((signal_strength_index + 1) >> 1);
3548 signal_power -= 95;
3549
3550 return signal_power;
3551 }
3552
3553 /* We can not declare RSSI/EVM total value of sliding window to
3554 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3555 * value will be kept in memory or disk. Declare the value in the adaptor
3556 * and it will be reinitialized when returned from S3/S4.
3557 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3558 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3559 struct ieee80211_rx_stats *pprevious_stats,
3560 struct ieee80211_rx_stats *pcurrent_stats)
3561 {
3562 bool bcheck = false;
3563 u8 rfpath;
3564 u32 nspatial_stream, tmp_val;
3565 static u32 slide_rssi_index, slide_rssi_statistics;
3566 static u32 slide_evm_index, slide_evm_statistics;
3567 static u32 last_rssi, last_evm;
3568
3569 static u32 slide_beacon_adc_pwdb_index;
3570 static u32 slide_beacon_adc_pwdb_statistics;
3571 static u32 last_beacon_adc_pwdb;
3572
3573 struct rtl_80211_hdr_3addr *hdr;
3574 u16 sc;
3575 unsigned int seq;
3576
3577 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3578 sc = le16_to_cpu(hdr->seq_ctl);
3579 seq = WLAN_GET_SEQ_SEQ(sc);
3580 /* to record the sequence number */
3581 pcurrent_stats->Seq_Num = seq;
3582
3583 /* Check whether we should take the previous packet into accounting */
3584 if (!pprevious_stats->bIsAMPDU) {
3585 /* if previous packet is not aggregated packet */
3586 bcheck = true;
3587 }
3588
3589 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3590 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3591 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3592 priv->stats.slide_rssi_total -= last_rssi;
3593 }
3594 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3595
3596 priv->stats.slide_signal_strength[slide_rssi_index++] =
3597 pprevious_stats->SignalStrength;
3598 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3599 slide_rssi_index = 0;
3600
3601 /* <1> Showed on UI for user, in dbm */
3602 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3603 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3604 pcurrent_stats->rssi = priv->stats.signal_strength;
3605
3606 /* If the previous packet does not match the criteria, neglect it */
3607 if (!pprevious_stats->bPacketMatchBSSID) {
3608 if (!pprevious_stats->bToSelfBA)
3609 return;
3610 }
3611
3612 if (!bcheck)
3613 return;
3614
3615 /* only rtl8190 supported
3616 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3617 */
3618
3619 /* Check RSSI */
3620 priv->stats.num_process_phyinfo++;
3621
3622 /* record the general signal strength to the sliding window. */
3623
3624 /* <2> Showed on UI for engineering
3625 * hardware does not provide rssi information for each rf path in CCK
3626 */
3627 if (!pprevious_stats->bIsCCK &&
3628 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3629 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3630 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev,
3631 rfpath))
3632 continue;
3633 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3634 priv->stats.rx_rssi_percentage[rfpath] =
3635 pprevious_stats->RxMIMOSignalStrength[rfpath];
3636 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
3637 priv->stats.rx_rssi_percentage[rfpath] =
3638 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3639 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3640 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
3641 } else {
3642 priv->stats.rx_rssi_percentage[rfpath] =
3643 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3644 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3645 }
3646 RT_TRACE(COMP_DBG,
3647 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
3648 priv->stats.rx_rssi_percentage[rfpath]);
3649 }
3650 }
3651
3652 /* Check PWDB. */
3653 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3654 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3655 pprevious_stats->RxPWDBAll);
3656
3657 if (pprevious_stats->bPacketBeacon) {
3658 /* record the beacon pwdb to the sliding window. */
3659 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
3660 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
3661 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
3662 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
3663 }
3664 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
3665 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
3666 slide_beacon_adc_pwdb_index++;
3667 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
3668 slide_beacon_adc_pwdb_index = 0;
3669 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
3670 if (pprevious_stats->RxPWDBAll >= 3)
3671 pprevious_stats->RxPWDBAll -= 3;
3672 }
3673
3674 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3675 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3676 pprevious_stats->RxPWDBAll);
3677
3678 if (pprevious_stats->bPacketToSelf ||
3679 pprevious_stats->bPacketBeacon ||
3680 pprevious_stats->bToSelfBA) {
3681 if (priv->undecorated_smoothed_pwdb < 0)
3682 /* initialize */
3683 priv->undecorated_smoothed_pwdb =
3684 pprevious_stats->RxPWDBAll;
3685 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
3686 priv->undecorated_smoothed_pwdb =
3687 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3688 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3689 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
3690 } else {
3691 priv->undecorated_smoothed_pwdb =
3692 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3693 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3694 }
3695 }
3696
3697 /* Check EVM */
3698 /* record the general EVM to the sliding window. */
3699 if (pprevious_stats->SignalQuality) {
3700 if (pprevious_stats->bPacketToSelf ||
3701 pprevious_stats->bPacketBeacon ||
3702 pprevious_stats->bToSelfBA) {
3703 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3704 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
3705 last_evm = priv->stats.slide_evm[slide_evm_index];
3706 priv->stats.slide_evm_total -= last_evm;
3707 }
3708
3709 priv->stats.slide_evm_total +=
3710 pprevious_stats->SignalQuality;
3711
3712 priv->stats.slide_evm[slide_evm_index++] =
3713 pprevious_stats->SignalQuality;
3714 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
3715 slide_evm_index = 0;
3716
3717 /* <1> Showed on UI for user, in percentage. */
3718 tmp_val = priv->stats.slide_evm_total /
3719 slide_evm_statistics;
3720 priv->stats.signal_quality = tmp_val;
3721 /* Showed on UI for user in Windows Vista,
3722 * for Link quality.
3723 */
3724 priv->stats.last_signal_strength_inpercent = tmp_val;
3725 }
3726
3727 /* <2> Showed on UI for engineering */
3728 if (pprevious_stats->bPacketToSelf ||
3729 pprevious_stats->bPacketBeacon ||
3730 pprevious_stats->bToSelfBA) {
3731 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
3732 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
3733 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
3734 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
3735 priv->stats.rx_evm_percentage[nspatial_stream] =
3736 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) +
3737 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR);
3738 }
3739 }
3740 }
3741 }
3742 }
3743
3744 /*-----------------------------------------------------------------------------
3745 * Function: rtl819x_query_rxpwrpercentage()
3746 *
3747 * Overview:
3748 *
3749 * Input: char antpower
3750 *
3751 * Output: NONE
3752 *
3753 * Return: 0-100 percentage
3754 *---------------------------------------------------------------------------
3755 */
rtl819x_query_rxpwrpercentage(s8 antpower)3756 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
3757 {
3758 if ((antpower <= -100) || (antpower >= 20))
3759 return 0;
3760 else if (antpower >= 0)
3761 return 100;
3762 else
3763 return 100 + antpower;
3764
3765 } /* QueryRxPwrPercentage */
3766
rtl819x_evm_dbtopercentage(s8 value)3767 static u8 rtl819x_evm_dbtopercentage(s8 value)
3768 {
3769 s8 ret_val = clamp(-value, 0, 33) * 3;
3770
3771 if (ret_val == 99)
3772 ret_val = 100;
3773
3774 return ret_val;
3775 }
3776
3777 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)3778 static long rtl819x_signal_scale_mapping(long currsig)
3779 {
3780 long retsig;
3781
3782 /* Step 1. Scale mapping. */
3783 if (currsig >= 61 && currsig <= 100)
3784 retsig = 90 + ((currsig - 60) / 4);
3785 else if (currsig >= 41 && currsig <= 60)
3786 retsig = 78 + ((currsig - 40) / 2);
3787 else if (currsig >= 31 && currsig <= 40)
3788 retsig = 66 + (currsig - 30);
3789 else if (currsig >= 21 && currsig <= 30)
3790 retsig = 54 + (currsig - 20);
3791 else if (currsig >= 5 && currsig <= 20)
3792 retsig = 42 + (((currsig - 5) * 2) / 3);
3793 else if (currsig == 4)
3794 retsig = 36;
3795 else if (currsig == 3)
3796 retsig = 27;
3797 else if (currsig == 2)
3798 retsig = 18;
3799 else if (currsig == 1)
3800 retsig = 9;
3801 else
3802 retsig = currsig;
3803
3804 return retsig;
3805 }
3806
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)3807 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
3808 {
3809 if (pdrvinfo->RxHT)
3810 return false;
3811
3812 switch (pdrvinfo->RxRate) {
3813 case DESC90_RATE1M:
3814 case DESC90_RATE2M:
3815 case DESC90_RATE5_5M:
3816 case DESC90_RATE11M:
3817 return true;
3818 default:
3819 return false;
3820 }
3821 }
3822
rtl8192_query_rxphystatus(struct r8192_priv * priv,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo,struct ieee80211_rx_stats * precord_stats,bool bpacket_match_bssid,bool bpacket_toself,bool bPacketBeacon,bool bToSelfBA)3823 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
3824 struct ieee80211_rx_stats *pstats,
3825 struct rx_drvinfo_819x_usb *pdrvinfo,
3826 struct ieee80211_rx_stats *precord_stats,
3827 bool bpacket_match_bssid,
3828 bool bpacket_toself,
3829 bool bPacketBeacon,
3830 bool bToSelfBA)
3831 {
3832 phy_sts_ofdm_819xusb_t *pofdm_buf;
3833 phy_sts_cck_819xusb_t *pcck_buf;
3834 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
3835 u8 *prxpkt;
3836 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
3837 s8 rx_pwr[4], rx_pwr_all = 0;
3838 s8 rx_snrX, rx_evmX;
3839 u8 evm, pwdb_all;
3840 u32 RSSI, total_rssi = 0;
3841 u8 is_cck_rate = 0;
3842 u8 rf_rx_num = 0;
3843 u8 sq;
3844
3845 priv->stats.numqry_phystatus++;
3846
3847 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
3848
3849 /* Record it for next packet processing */
3850 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
3851 pstats->bPacketMatchBSSID =
3852 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
3853 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
3854 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
3855 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
3856 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
3857
3858 prxpkt = (u8 *)pdrvinfo;
3859
3860 /* Move pointer to the 16th bytes. Phy status start address. */
3861 prxpkt += sizeof(struct rx_drvinfo_819x_usb);
3862
3863 /* Initial the cck and ofdm buffer pointer */
3864 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
3865 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
3866
3867 pstats->RxMIMOSignalQuality[0] = -1;
3868 pstats->RxMIMOSignalQuality[1] = -1;
3869 precord_stats->RxMIMOSignalQuality[0] = -1;
3870 precord_stats->RxMIMOSignalQuality[1] = -1;
3871
3872 if (is_cck_rate) {
3873 /* (1)Hardware does not provide RSSI for CCK */
3874
3875 /* (2)PWDB, Average PWDB calculated by hardware
3876 * (for rate adaptive)
3877 */
3878 u8 report;
3879
3880 priv->stats.numqry_phystatusCCK++;
3881
3882 if (!priv->bCckHighPower) {
3883 report = pcck_buf->cck_agc_rpt & 0xc0;
3884 report >>= 6;
3885 switch (report) {
3886 case 0x3:
3887 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
3888 break;
3889 case 0x2:
3890 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
3891 break;
3892 case 0x1:
3893 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
3894 break;
3895 case 0x0:
3896 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
3897 break;
3898 }
3899 } else {
3900 report = pcck_buf->cck_agc_rpt & 0x60;
3901 report >>= 5;
3902 switch (report) {
3903 case 0x3:
3904 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
3905 break;
3906 case 0x2:
3907 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
3908 break;
3909 case 0x1:
3910 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
3911 break;
3912 case 0x0:
3913 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
3914 break;
3915 }
3916 }
3917
3918 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
3919 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
3920 pstats->RecvSignalPower = pwdb_all;
3921
3922 /* (3) Get Signal Quality (EVM) */
3923
3924 if (pstats->RxPWDBAll > 40) {
3925 sq = 100;
3926 } else {
3927 sq = pcck_buf->sq_rpt;
3928
3929 if (pcck_buf->sq_rpt > 64)
3930 sq = 0;
3931 else if (pcck_buf->sq_rpt < 20)
3932 sq = 100;
3933 else
3934 sq = ((64 - sq) * 100) / 44;
3935 }
3936 pstats->SignalQuality = precord_stats->SignalQuality = sq;
3937 pstats->RxMIMOSignalQuality[0] =
3938 precord_stats->RxMIMOSignalQuality[0] = sq;
3939 pstats->RxMIMOSignalQuality[1] =
3940 precord_stats->RxMIMOSignalQuality[1] = -1;
3941
3942 } else {
3943 priv->stats.numqry_phystatusHT++;
3944
3945 /* (1)Get RSSI for HT rate */
3946 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
3947 /* We will judge RF RX path now. */
3948 if (priv->brfpath_rxenable[i])
3949 rf_rx_num++;
3950 else
3951 continue;
3952
3953 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i))
3954 continue;
3955
3956 rx_pwr[i] =
3957 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
3958
3959 /* Get Rx snr value in DB */
3960 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
3961 rx_snrX = (s8)(tmp_rxsnr);
3962 rx_snrX /= 2;
3963 priv->stats.rxSNRdB[i] = (long)rx_snrX;
3964
3965 /* Translate DBM to percentage. */
3966 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
3967 total_rssi += RSSI;
3968
3969 /* Record Signal Strength for next packet */
3970 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
3971 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
3972 }
3973
3974 /* (2)PWDB, Average PWDB calculated by hardware
3975 * (for rate adaptive)
3976 */
3977 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
3978 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
3979
3980 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
3981 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
3982
3983 /* (3)EVM of HT rate */
3984 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
3985 pdrvinfo->RxRate <= DESC90_RATEMCS15)
3986 /* both spatial stream make sense */
3987 max_spatial_stream = 2;
3988 else
3989 /* only spatial stream 1 makes sense */
3990 max_spatial_stream = 1;
3991
3992 for (i = 0; i < max_spatial_stream; i++) {
3993 tmp_rxevm = pofdm_buf->rxevm_X[i];
3994 rx_evmX = (s8)(tmp_rxevm);
3995
3996 /* Do not use shift operation like "rx_evmX >>= 1"
3997 * because the compiler of free build environment will
3998 * set the most significant bit to "zero" when doing
3999 * shifting operation which may change a negative value
4000 * to positive one, then the dbm value (which is
4001 * supposed to be negative) is not correct anymore.
4002 */
4003 rx_evmX /= 2; /* dbm */
4004
4005 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4006 if (i == 0)
4007 /* Fill value in RFD, Get the first spatial
4008 * stream only
4009 */
4010 pstats->SignalQuality =
4011 precord_stats->SignalQuality =
4012 evm & 0xff;
4013 pstats->RxMIMOSignalQuality[i] =
4014 precord_stats->RxMIMOSignalQuality[i] =
4015 evm & 0xff;
4016 }
4017
4018 /* record rx statistics for debug */
4019 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4020 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4021 &rxsc_sgien_exflg;
4022 if (pdrvinfo->BW) /* 40M channel */
4023 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4024 else /* 20M channel */
4025 priv->stats.received_bwtype[0]++;
4026 }
4027
4028 /* UI BSS List signal strength(in percentage), make it good looking,
4029 * from 0~100. It is assigned to the BSS List in
4030 * GetValueFromBeaconOrProbeRsp().
4031 */
4032 if (is_cck_rate) {
4033 pstats->SignalStrength =
4034 precord_stats->SignalStrength =
4035 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4036 } else {
4037 /* We can judge RX path number now. */
4038 if (rf_rx_num != 0) {
4039 pstats->SignalStrength =
4040 precord_stats->SignalStrength =
4041 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4042 }
4043 }
4044 } /* QueryRxPhyStatus8190Pci */
4045
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4046 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats,
4047 struct ieee80211_rx_stats *ptarget_stats)
4048 {
4049 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4050 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4051 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4052 }
4053
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo)4054 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4055 struct ieee80211_rx_stats *pstats,
4056 struct rx_drvinfo_819x_usb *pdrvinfo)
4057 {
4058 /* TODO: We must only check packet for current MAC address.
4059 * Not finish
4060 */
4061 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4062 struct net_device *dev = info->dev;
4063 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4064 bool bpacket_match_bssid, bpacket_toself;
4065 bool bPacketBeacon = false, bToSelfBA = false;
4066 static struct ieee80211_rx_stats previous_stats;
4067 struct rtl_80211_hdr_3addr *hdr;
4068 u16 fc, type;
4069
4070 /* Get Signal Quality for only RX data queue (but not command queue) */
4071
4072 u8 *tmp_buf;
4073 u8 *praddr;
4074
4075 /* Get MAC frame start address. */
4076 tmp_buf = (u8 *)skb->data;
4077
4078 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4079 fc = le16_to_cpu(hdr->frame_ctl);
4080 type = WLAN_FC_GET_TYPE(fc);
4081 praddr = hdr->addr1;
4082
4083 /* Check if the received packet is acceptable. */
4084 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
4085 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4086 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4087 bpacket_toself = bpacket_match_bssid &&
4088 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr));
4089
4090 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4091 bPacketBeacon = true;
4092 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4093 if ((ether_addr_equal(praddr, dev->dev_addr)))
4094 bToSelfBA = true;
4095 }
4096
4097 if (bpacket_match_bssid)
4098 priv->stats.numpacket_matchbssid++;
4099 if (bpacket_toself)
4100 priv->stats.numpacket_toself++;
4101 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4102 * Because phy information is contained in the last packet of AMPDU
4103 * only, so driver should process phy information of previous packet
4104 */
4105 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4106 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4107 bpacket_match_bssid, bpacket_toself,
4108 bPacketBeacon, bToSelfBA);
4109 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4110 }
4111
4112 /*
4113 * Function: UpdateReceivedRateHistogramStatistics
4114 * Overview: Record the received data rate
4115 *
4116 * Input:
4117 * struct net_device *dev
4118 * struct ieee80211_rx_stats *stats
4119 *
4120 * Output:
4121 *
4122 * (priv->stats.ReceivedRateHistogram[] is updated)
4123 * Return:
4124 * None
4125 */
4126 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4127 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4128 struct ieee80211_rx_stats *stats)
4129 {
4130 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4131 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4132 u32 rcvType = 1;
4133 u32 rateIndex;
4134 /* 1: short preamble/GI, 0: long preamble/GI */
4135 u32 preamble_guardinterval;
4136
4137 if (stats->bCRC)
4138 rcvType = 2;
4139 else if (stats->bICV)
4140 rcvType = 3;
4141
4142 if (stats->bShortPreamble)
4143 preamble_guardinterval = 1; /* short */
4144 else
4145 preamble_guardinterval = 0; /* long */
4146
4147 switch (stats->rate) {
4148 /* CCK rate */
4149 case MGN_1M:
4150 rateIndex = 0;
4151 break;
4152 case MGN_2M:
4153 rateIndex = 1;
4154 break;
4155 case MGN_5_5M:
4156 rateIndex = 2;
4157 break;
4158 case MGN_11M:
4159 rateIndex = 3;
4160 break;
4161 /* Legacy OFDM rate */
4162 case MGN_6M:
4163 rateIndex = 4;
4164 break;
4165 case MGN_9M:
4166 rateIndex = 5;
4167 break;
4168 case MGN_12M:
4169 rateIndex = 6;
4170 break;
4171 case MGN_18M:
4172 rateIndex = 7;
4173 break;
4174 case MGN_24M:
4175 rateIndex = 8;
4176 break;
4177 case MGN_36M:
4178 rateIndex = 9;
4179 break;
4180 case MGN_48M:
4181 rateIndex = 10;
4182 break;
4183 case MGN_54M:
4184 rateIndex = 11;
4185 break;
4186 /* 11n High throughput rate */
4187 case MGN_MCS0:
4188 rateIndex = 12;
4189 break;
4190 case MGN_MCS1:
4191 rateIndex = 13;
4192 break;
4193 case MGN_MCS2:
4194 rateIndex = 14;
4195 break;
4196 case MGN_MCS3:
4197 rateIndex = 15;
4198 break;
4199 case MGN_MCS4:
4200 rateIndex = 16;
4201 break;
4202 case MGN_MCS5:
4203 rateIndex = 17;
4204 break;
4205 case MGN_MCS6:
4206 rateIndex = 18;
4207 break;
4208 case MGN_MCS7:
4209 rateIndex = 19;
4210 break;
4211 case MGN_MCS8:
4212 rateIndex = 20;
4213 break;
4214 case MGN_MCS9:
4215 rateIndex = 21;
4216 break;
4217 case MGN_MCS10:
4218 rateIndex = 22;
4219 break;
4220 case MGN_MCS11:
4221 rateIndex = 23;
4222 break;
4223 case MGN_MCS12:
4224 rateIndex = 24;
4225 break;
4226 case MGN_MCS13:
4227 rateIndex = 25;
4228 break;
4229 case MGN_MCS14:
4230 rateIndex = 26;
4231 break;
4232 case MGN_MCS15:
4233 rateIndex = 27;
4234 break;
4235 default:
4236 rateIndex = 28;
4237 break;
4238 }
4239 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4240 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4241 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4242 }
4243
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4244 static void query_rxdesc_status(struct sk_buff *skb,
4245 struct ieee80211_rx_stats *stats,
4246 bool bIsRxAggrSubframe)
4247 {
4248 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4249 struct net_device *dev = info->dev;
4250 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4251 struct rx_drvinfo_819x_usb *driver_info = NULL;
4252
4253 /* Get Rx Descriptor Information */
4254 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4255
4256 stats->Length = desc->Length;
4257 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4258 stats->RxBufShift = 0;
4259 stats->bICV = desc->ICV;
4260 stats->bCRC = desc->CRC32;
4261 stats->bHwError = stats->bCRC | stats->bICV;
4262 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4263 stats->Decrypted = !desc->SWDec;
4264
4265 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4266 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4267 stats->bHwError = false;
4268 else
4269 stats->bHwError = stats->bCRC | stats->bICV;
4270
4271 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4272 stats->bHwError |= 1;
4273 /* Get Driver Info */
4274 /* TODO: Need to verify it on FGPA platform
4275 * Driver info are written to the RxBuffer following rx desc
4276 */
4277 if (stats->RxDrvInfoSize != 0) {
4278 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data
4279 + sizeof(struct rx_desc_819x_usb)
4280 + stats->RxBufShift
4281 );
4282 /* unit: 0.5M */
4283 /* TODO */
4284 if (!stats->bHwError) {
4285 u8 ret_rate;
4286
4287 ret_rate = HwRateToMRate90(driver_info->RxHT,
4288 driver_info->RxRate);
4289 if (ret_rate == 0xff) {
4290 /* Abnormal Case: Receive CRC OK packet with Rx
4291 * descriptor indicating non supported rate.
4292 * Special Error Handling here
4293 */
4294
4295 stats->bHwError = 1;
4296 /* Set 1M rate by default */
4297 stats->rate = MGN_1M;
4298 } else {
4299 stats->rate = ret_rate;
4300 }
4301 } else {
4302 stats->rate = 0x02;
4303 }
4304
4305 stats->bShortPreamble = driver_info->SPLCP;
4306
4307 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4308
4309 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4310 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4311 (driver_info->FirstAGGR == 1);
4312 stats->TimeStampLow = driver_info->TSFL;
4313
4314 UpdateRxPktTimeStamp8190(dev, stats);
4315
4316 /* Rx A-MPDU */
4317 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4318 RT_TRACE(COMP_RXDESC,
4319 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4320 driver_info->FirstAGGR, driver_info->PartAggr);
4321 }
4322
4323 skb_pull(skb, sizeof(struct rx_desc_819x_usb));
4324 /* Get Total offset of MPDU Frame Body */
4325 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4326 stats->bShift = 1;
4327 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4328 }
4329
4330 if (driver_info) {
4331 stats->RxIs40MHzPacket = driver_info->BW;
4332 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4333 }
4334 }
4335
rtl8192_rx_nomal(struct sk_buff * skb)4336 static void rtl8192_rx_nomal(struct sk_buff *skb)
4337 {
4338 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4339 struct net_device *dev = info->dev;
4340 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4341 struct ieee80211_rx_stats stats = {
4342 .signal = 0,
4343 .noise = 0x100 - 98,
4344 .rate = 0,
4345 .freq = IEEE80211_24GHZ_BAND,
4346 };
4347 u32 rx_pkt_len = 0;
4348 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4349 bool unicast_packet = false;
4350
4351 /* 20 is for ps-poll */
4352 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4353 /* first packet should not contain Rx aggregation header */
4354 query_rxdesc_status(skb, &stats, false);
4355 /* TODO */
4356 /* hardware related info */
4357 /* Process the MPDU received */
4358 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4359
4360 rx_pkt_len = skb->len;
4361 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4362 unicast_packet = false;
4363 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4364 /* TODO */
4365 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4366 /* TODO */
4367 } else {
4368 /* unicast packet */
4369 unicast_packet = true;
4370 }
4371
4372 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4373 dev_kfree_skb_any(skb);
4374 } else {
4375 priv->stats.rxoktotal++;
4376 if (unicast_packet)
4377 priv->stats.rxbytesunicast += rx_pkt_len;
4378 }
4379 } else {
4380 priv->stats.rxurberr++;
4381 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4382 dev_kfree_skb_any(skb);
4383 }
4384 }
4385
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4386 static void rtl819xusb_process_received_packet(struct net_device *dev,
4387 struct ieee80211_rx_stats *pstats)
4388 {
4389 struct r8192_priv *priv = ieee80211_priv(dev);
4390
4391 /* Get shifted bytes of Starting address of 802.11 header. */
4392 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4393 #ifdef TODO /* about HCT */
4394 if (!Adapter->bInHctTest)
4395 CountRxErrStatistics(Adapter, pRfd);
4396 #endif
4397 #ifdef ENABLE_PS /* for adding ps function in future */
4398 RT_RF_POWER_STATE rtState;
4399 /* When RF is off, we should not count the packet for hw/sw synchronize
4400 * reason, ie. there may be a duration while sw switch is changed and
4401 * hw switch is being changed.
4402 */
4403 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4404 (u8 *)(&rtState));
4405 if (rtState == eRfOff)
4406 return;
4407 #endif
4408 priv->stats.rxframgment++;
4409
4410 #ifdef TODO
4411 RmMonitorSignalStrength(Adapter, pRfd);
4412 #endif
4413 /* We have to release RFD and return if rx pkt is cmd pkt. */
4414 if (rtl819xusb_rx_command_packet(dev, pstats))
4415 return;
4416
4417 #ifdef SW_CRC_CHECK
4418 SwCrcCheck();
4419 #endif
4420 }
4421
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4422 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4423 struct ieee80211_rx_stats *stats)
4424 {
4425 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4426
4427 /* Get Rx Descriptor Information */
4428 stats->virtual_address = (u8 *)skb->data;
4429 stats->Length = desc->Length;
4430 stats->RxDrvInfoSize = 0;
4431 stats->RxBufShift = 0;
4432 stats->packetlength = stats->Length - scrclng;
4433 stats->fraglength = stats->packetlength;
4434 stats->fragoffset = 0;
4435 stats->ntotalfrag = 1;
4436 }
4437
rtl8192_rx_cmd(struct sk_buff * skb)4438 static void rtl8192_rx_cmd(struct sk_buff *skb)
4439 {
4440 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4441 struct net_device *dev = info->dev;
4442 /* TODO */
4443 struct ieee80211_rx_stats stats = {
4444 .signal = 0,
4445 .noise = 0x100 - 98,
4446 .rate = 0,
4447 .freq = IEEE80211_24GHZ_BAND,
4448 };
4449
4450 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4451 query_rx_cmdpkt_desc_status(skb, &stats);
4452 /* prfd->queue_id = 1; */
4453
4454 /* Process the command packet received. */
4455
4456 rtl819xusb_process_received_packet(dev, &stats);
4457
4458 dev_kfree_skb_any(skb);
4459 }
4460 }
4461
rtl8192_irq_rx_tasklet(struct tasklet_struct * t)4462 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t)
4463 {
4464 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
4465 struct sk_buff *skb;
4466 struct rtl8192_rx_info *info;
4467
4468 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4469 info = (struct rtl8192_rx_info *)skb->cb;
4470 switch (info->out_pipe) {
4471 /* Nomal packet pipe */
4472 case 3:
4473 priv->IrpPendingCount--;
4474 rtl8192_rx_nomal(skb);
4475 break;
4476
4477 /* Command packet pipe */
4478 case 9:
4479 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4480 info->out_pipe);
4481
4482 rtl8192_rx_cmd(skb);
4483 break;
4484
4485 default: /* should never get here! */
4486 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4487 info->out_pipe);
4488 dev_kfree_skb(skb);
4489 break;
4490 }
4491 }
4492 }
4493
4494 static const struct net_device_ops rtl8192_netdev_ops = {
4495 .ndo_open = rtl8192_open,
4496 .ndo_stop = rtl8192_close,
4497 .ndo_get_stats = rtl8192_stats,
4498 .ndo_tx_timeout = tx_timeout,
4499 .ndo_do_ioctl = rtl8192_ioctl,
4500 .ndo_set_rx_mode = r8192_set_multicast,
4501 .ndo_set_mac_address = r8192_set_mac_adr,
4502 .ndo_validate_addr = eth_validate_addr,
4503 .ndo_start_xmit = ieee80211_xmit,
4504 };
4505
4506 /****************************************************************************
4507 * ---------------------------- USB_STUFF---------------------------
4508 *****************************************************************************/
4509
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4510 static int rtl8192_usb_probe(struct usb_interface *intf,
4511 const struct usb_device_id *id)
4512 {
4513 struct net_device *dev = NULL;
4514 struct r8192_priv *priv = NULL;
4515 struct usb_device *udev = interface_to_usbdev(intf);
4516 int ret;
4517
4518 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4519
4520 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4521 if (!dev)
4522 return -ENOMEM;
4523
4524 usb_set_intfdata(intf, dev);
4525 SET_NETDEV_DEV(dev, &intf->dev);
4526 priv = ieee80211_priv(dev);
4527 priv->ieee80211 = netdev_priv(dev);
4528 priv->udev = udev;
4529
4530 dev->netdev_ops = &rtl8192_netdev_ops;
4531
4532 dev->wireless_handlers = &r8192_wx_handlers_def;
4533
4534 dev->type = ARPHRD_ETHER;
4535
4536 dev->watchdog_timeo = HZ * 3;
4537
4538 if (dev_alloc_name(dev, ifname) < 0) {
4539 RT_TRACE(COMP_INIT,
4540 "Oops: devname already taken! Trying wlan%%d...\n");
4541 ifname = "wlan%d";
4542 dev_alloc_name(dev, ifname);
4543 }
4544
4545 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4546 if (rtl8192_init(dev) != 0) {
4547 RT_TRACE(COMP_ERR, "Initialization failed");
4548 ret = -ENODEV;
4549 goto fail;
4550 }
4551 netif_carrier_off(dev);
4552 netif_stop_queue(dev);
4553
4554 ret = register_netdev(dev);
4555 if (ret)
4556 goto fail2;
4557
4558 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4559 rtl8192_debugfs_init_one(dev);
4560
4561 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4562 return 0;
4563
4564 fail2:
4565 rtl8192_down(dev);
4566 fail:
4567 kfree(priv->pFirmware);
4568 priv->pFirmware = NULL;
4569 rtl8192_usb_deleteendpoints(dev);
4570 msleep(10);
4571 free_ieee80211(dev);
4572
4573 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
4574 return ret;
4575 }
4576
4577 /* detach all the work and timer structure declared or inititialize
4578 * in r8192U_init function.
4579 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)4580 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
4581 {
4582 cancel_work_sync(&priv->reset_wq);
4583 cancel_delayed_work(&priv->watch_dog_wq);
4584 cancel_delayed_work(&priv->update_beacon_wq);
4585 cancel_work_sync(&priv->qos_activate);
4586 }
4587
rtl8192_usb_disconnect(struct usb_interface * intf)4588 static void rtl8192_usb_disconnect(struct usb_interface *intf)
4589 {
4590 struct net_device *dev = usb_get_intfdata(intf);
4591 struct r8192_priv *priv = ieee80211_priv(dev);
4592
4593
4594 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n");
4595 rtl8192_debugfs_exit_one(dev);
4596
4597 unregister_netdev(dev);
4598
4599 rtl8192_down(dev);
4600 kfree(priv->pFirmware);
4601 priv->pFirmware = NULL;
4602 rtl8192_usb_deleteendpoints(dev);
4603 usleep_range(10000, 11000);
4604 free_ieee80211(dev);
4605
4606 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
4607 }
4608
rtl8192_usb_netdev_event(struct notifier_block * nb,unsigned long event,void * data)4609 static int rtl8192_usb_netdev_event(struct notifier_block *nb, unsigned long event,
4610 void *data)
4611 {
4612 struct net_device *netdev = netdev_notifier_info_to_dev(data);
4613
4614 if (netdev->netdev_ops != &rtl8192_netdev_ops)
4615 goto out;
4616
4617 switch (event) {
4618 case NETDEV_CHANGENAME:
4619 rtl8192_debugfs_rename_one(netdev);
4620 break;
4621 default:
4622 break;
4623 }
4624
4625 out:
4626 return NOTIFY_DONE;
4627 }
4628
4629 static struct notifier_block rtl8192_usb_netdev_notifier = {
4630 .notifier_call = rtl8192_usb_netdev_event,
4631 };
4632
rtl8192_usb_module_init(void)4633 static int __init rtl8192_usb_module_init(void)
4634 {
4635 int ret;
4636
4637 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
4638 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
4639 RT_TRACE(COMP_INIT, "Initializing module");
4640 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
4641
4642 ret = register_netdevice_notifier(&rtl8192_usb_netdev_notifier);
4643 if (ret) {
4644 pr_err("register_netdevice_notifier failed %d\n", ret);
4645 return ret;
4646 }
4647
4648 rtl8192_debugfs_init();
4649 ret = ieee80211_debug_init();
4650 if (ret) {
4651 pr_err("ieee80211_debug_init() failed %d\n", ret);
4652 goto debugfs_exit;
4653 }
4654
4655 ret = ieee80211_crypto_init();
4656 if (ret) {
4657 pr_err("ieee80211_crypto_init() failed %d\n", ret);
4658 goto debug_exit;
4659 }
4660
4661 ret = ieee80211_crypto_tkip_init();
4662 if (ret) {
4663 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
4664 goto crypto_exit;
4665 }
4666
4667 ret = ieee80211_crypto_ccmp_init();
4668 if (ret) {
4669 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
4670 goto crypto_tkip_exit;
4671 }
4672
4673 ret = ieee80211_crypto_wep_init();
4674 if (ret) {
4675 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
4676 goto crypto_ccmp_exit;
4677 }
4678
4679 ret = usb_register(&rtl8192_usb_driver);
4680 if (ret)
4681 goto crypto_wep_exit;
4682 return ret;
4683
4684 crypto_wep_exit:
4685 ieee80211_crypto_wep_exit();
4686 crypto_ccmp_exit:
4687 ieee80211_crypto_ccmp_exit();
4688 crypto_tkip_exit:
4689 ieee80211_crypto_tkip_exit();
4690 crypto_exit:
4691 ieee80211_crypto_deinit();
4692 debug_exit:
4693 ieee80211_debug_exit();
4694 debugfs_exit:
4695 rtl8192_debugfs_exit();
4696 unregister_netdevice_notifier(&rtl8192_usb_netdev_notifier);
4697 return ret;
4698 }
4699
rtl8192_usb_module_exit(void)4700 static void __exit rtl8192_usb_module_exit(void)
4701 {
4702 usb_deregister(&rtl8192_usb_driver);
4703 ieee80211_crypto_wep_exit();
4704 ieee80211_crypto_ccmp_exit();
4705 ieee80211_crypto_tkip_exit();
4706 ieee80211_crypto_deinit();
4707 ieee80211_debug_exit();
4708 rtl8192_debugfs_exit();
4709 unregister_netdevice_notifier(&rtl8192_usb_netdev_notifier);
4710 RT_TRACE(COMP_DOWN, "Exiting");
4711 }
4712
EnableHWSecurityConfig8192(struct net_device * dev)4713 void EnableHWSecurityConfig8192(struct net_device *dev)
4714 {
4715 u8 SECR_value = 0x0;
4716 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4717 struct ieee80211_device *ieee = priv->ieee80211;
4718
4719 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
4720 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) {
4721 SECR_value |= SCR_RxUseDK;
4722 SECR_value |= SCR_TxUseDK;
4723 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
4724 SECR_value |= SCR_RxUseDK;
4725 SECR_value |= SCR_TxUseDK;
4726 }
4727 /* add HWSec active enable here.
4728 * default using hwsec. when peer AP is in N mode only and
4729 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
4730 * it), use software security. when peer AP is in b,g,n mode mixed and
4731 * pairwise_key_type is none_aes, use g mode hw security.
4732 */
4733
4734 ieee->hwsec_active = 1;
4735
4736 /* add hwsec_support flag to totol control hw_sec on/off */
4737 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
4738 ieee->hwsec_active = 0;
4739 SECR_value &= ~SCR_RxDecEnable;
4740 }
4741 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
4742 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
4743 SECR_value);
4744 write_nic_byte(dev, SECR, SECR_value);
4745 }
4746
setKey(struct net_device * dev,u8 entryno,u8 keyindex,u16 keytype,const u8 * macaddr,u8 defaultkey,u32 * keycontent)4747 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype,
4748 const u8 *macaddr, u8 defaultkey, u32 *keycontent)
4749 {
4750 u32 target_command = 0;
4751 u32 target_content = 0;
4752 u16 us_config = 0;
4753 u8 i;
4754
4755 if (entryno >= TOTAL_CAM_ENTRY)
4756 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__);
4757
4758 RT_TRACE(COMP_SEC,
4759 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
4760 __func__, dev, entryno, keyindex, keytype, macaddr);
4761
4762 if (defaultkey)
4763 us_config |= BIT(15) | (keytype << 2);
4764 else
4765 us_config |= BIT(15) | (keytype << 2) | keyindex;
4766
4767 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
4768 target_command = i + CAM_CONTENT_COUNT * entryno;
4769 target_command |= BIT(31) | BIT(16);
4770
4771 if (i == 0) { /* MAC|Config */
4772 target_content = (u32)(*(macaddr + 0)) << 16 |
4773 (u32)(*(macaddr + 1)) << 24 |
4774 (u32)us_config;
4775
4776 write_nic_dword(dev, WCAMI, target_content);
4777 write_nic_dword(dev, RWCAM, target_command);
4778 } else if (i == 1) { /* MAC */
4779 target_content = (u32)(*(macaddr + 2)) |
4780 (u32)(*(macaddr + 3)) << 8 |
4781 (u32)(*(macaddr + 4)) << 16 |
4782 (u32)(*(macaddr + 5)) << 24;
4783 write_nic_dword(dev, WCAMI, target_content);
4784 write_nic_dword(dev, RWCAM, target_command);
4785 } else {
4786 /* Key Material */
4787 if (keycontent) {
4788 write_nic_dword(dev, WCAMI,
4789 *(keycontent + i - 2));
4790 write_nic_dword(dev, RWCAM, target_command);
4791 }
4792 }
4793 }
4794 }
4795
4796 /***************************************************************************
4797 * ------------------- module init / exit stubs ----------------
4798 ****************************************************************************/
4799 module_init(rtl8192_usb_module_init);
4800 module_exit(rtl8192_usb_module_exit);
4801