1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 * Linux device driver for RTL8192U
4 *
5 * Based on the r8187 driver, which is:
6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * The full GNU General Public License is included in this distribution in the
21 * file called LICENSE.
22 *
23 * Contact Information:
24 * Jerry chuang <wlanfae@realtek.com>
25 */
26
27 #ifndef CONFIG_FORCE_HARD_FLOAT
__floatsidf(int i)28 double __floatsidf(int i)
29 {
30 return i;
31 }
32
__fixunsdfsi(double d)33 unsigned int __fixunsdfsi(double d)
34 {
35 return d;
36 }
37
__adddf3(double a,double b)38 double __adddf3(double a, double b)
39 {
40 return a + b;
41 }
42
__addsf3(float a,float b)43 double __addsf3(float a, float b)
44 {
45 return a + b;
46 }
47
__subdf3(double a,double b)48 double __subdf3(double a, double b)
49 {
50 return a - b;
51 }
52
__extendsfdf2(float a)53 double __extendsfdf2(float a)
54 {
55 return a;
56 }
57 #endif
58
59 #define CONFIG_RTL8192_IO_MAP
60
61 #include <linux/uaccess.h>
62 #include "r8192U_hw.h"
63 #include "r8192U.h"
64 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
65 #include "r8180_93cx6.h" /* Card EEPROM */
66 #include "r8192U_wx.h"
67 #include "r819xU_phy.h"
68 #include "r819xU_phyreg.h"
69 #include "r819xU_cmdpkt.h"
70 #include "r8192U_dm.h"
71 #include <linux/usb.h>
72 #include <linux/slab.h>
73 #include <linux/proc_fs.h>
74 #include <linux/seq_file.h>
75 /* FIXME: check if 2.6.7 is ok */
76
77 #include "dot11d.h"
78 /* set here to open your trace code. */
79 u32 rt_global_debug_component = COMP_DOWN |
80 COMP_SEC |
81 COMP_ERR; /* always open err flags on */
82
83 #define TOTAL_CAM_ENTRY 32
84 #define CAM_CONTENT_COUNT 8
85
86 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
87 /* Realtek */
88 {USB_DEVICE(0x0bda, 0x8709)},
89 /* Corega */
90 {USB_DEVICE(0x07aa, 0x0043)},
91 /* Belkin */
92 {USB_DEVICE(0x050d, 0x805E)},
93 /* Sitecom */
94 {USB_DEVICE(0x0df6, 0x0031)},
95 /* EnGenius */
96 {USB_DEVICE(0x1740, 0x9201)},
97 /* Dlink */
98 {USB_DEVICE(0x2001, 0x3301)},
99 /* Zinwell */
100 {USB_DEVICE(0x5a57, 0x0290)},
101 /* LG */
102 {USB_DEVICE(0x043e, 0x7a01)},
103 {}
104 };
105
106 MODULE_LICENSE("GPL");
107 MODULE_VERSION("V 1.1");
108 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
109 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
110
111 static char *ifname = "wlan%d";
112 static int hwwep = 1; /* default use hw. set 0 to use software security */
113 static int channels = 0x3fff;
114
115
116
117 module_param(ifname, charp, S_IRUGO | S_IWUSR);
118 module_param(hwwep, int, S_IRUGO | S_IWUSR);
119 module_param(channels, int, S_IRUGO | S_IWUSR);
120
121 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
122 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
123 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
124
125 static int rtl8192_usb_probe(struct usb_interface *intf,
126 const struct usb_device_id *id);
127 static void rtl8192_usb_disconnect(struct usb_interface *intf);
128
129
130 static struct usb_driver rtl8192_usb_driver = {
131 .name = RTL819xU_MODULE_NAME, /* Driver name */
132 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
133 .probe = rtl8192_usb_probe, /* probe fn */
134 .disconnect = rtl8192_usb_disconnect, /* remove fn */
135 .suspend = NULL, /* PM suspend fn */
136 .resume = NULL, /* PM resume fn */
137 };
138
139
140 struct CHANNEL_LIST {
141 u8 Channel[32];
142 u8 Len;
143 };
144
145 static struct CHANNEL_LIST ChannelPlan[] = {
146 /* FCC */
147 {{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},
148 /* IC */
149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
150 /* ETSI */
151 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
152 /* Spain. Change to ETSI. */
153 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
154 /* France. Change to ETSI. */
155 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
156 /* MKK */
157 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
158 /* MKK1 */
159 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
160 /* Israel. */
161 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
162 /* For 11a , TELEC */
163 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
164 /* MIC */
165 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
166 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
167 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
168 };
169
rtl819x_set_channel_map(u8 channel_plan,struct r8192_priv * priv)170 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
171 {
172 int i, max_chan = -1, min_chan = -1;
173 struct ieee80211_device *ieee = priv->ieee80211;
174
175 switch (channel_plan) {
176 case COUNTRY_CODE_FCC:
177 case COUNTRY_CODE_IC:
178 case COUNTRY_CODE_ETSI:
179 case COUNTRY_CODE_SPAIN:
180 case COUNTRY_CODE_FRANCE:
181 case COUNTRY_CODE_MKK:
182 case COUNTRY_CODE_MKK1:
183 case COUNTRY_CODE_ISRAEL:
184 case COUNTRY_CODE_TELEC:
185 case COUNTRY_CODE_MIC:
186 Dot11d_Init(ieee);
187 ieee->bGlobalDomain = false;
188 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
189 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
190 min_chan = 1;
191 max_chan = 14;
192 } else {
193 RT_TRACE(COMP_ERR,
194 "unknown rf chip, can't set channel map in function:%s()\n",
195 __func__);
196 }
197 if (ChannelPlan[channel_plan].Len != 0) {
198 /* Clear old channel map */
199 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
200 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
201 /* Set new channel map */
202 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
203 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
204 break;
205 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
206 }
207 }
208 break;
209
210 case COUNTRY_CODE_GLOBAL_DOMAIN:
211 /* this flag enabled to follow 11d country IE setting,
212 * otherwise, it shall follow global domain settings.
213 */
214 GET_DOT11D_INFO(ieee)->bEnabled = 0;
215 Dot11d_Reset(ieee);
216 ieee->bGlobalDomain = true;
217 break;
218
219 default:
220 break;
221 }
222 }
223
224
225
226
CamResetAllEntry(struct net_device * dev)227 static void CamResetAllEntry(struct net_device *dev)
228 {
229 u32 ulcommand = 0;
230 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
231 * associate to AP. However, ResetKey is called on
232 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
233 * condition, Cam can not be reset because upper layer will not set
234 * this static key again.
235 */
236 ulcommand |= BIT(31) | BIT(30);
237 write_nic_dword(dev, RWCAM, ulcommand);
238
239 }
240
241
write_cam(struct net_device * dev,u8 addr,u32 data)242 void write_cam(struct net_device *dev, u8 addr, u32 data)
243 {
244 write_nic_dword(dev, WCAMI, data);
245 write_nic_dword(dev, RWCAM, BIT(31) | BIT(16) | (addr & 0xff));
246 }
247
read_cam(struct net_device * dev,u8 addr)248 u32 read_cam(struct net_device *dev, u8 addr)
249 {
250 u32 data;
251
252 write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff));
253 read_nic_dword(dev, 0xa8, &data);
254 return data;
255 }
256
write_nic_byte_E(struct net_device * dev,int indx,u8 data)257 void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
258 {
259 int status;
260 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
261 struct usb_device *udev = priv->udev;
262 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
263
264 if (!usbdata)
265 return;
266 *usbdata = data;
267
268 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
269 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
270 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
271 kfree(usbdata);
272
273 if (status < 0)
274 netdev_err(dev, "write_nic_byte_E TimeOut! status: %d\n",
275 status);
276 }
277
read_nic_byte_E(struct net_device * dev,int indx,u8 * data)278 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
279 {
280 int status;
281 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
282 struct usb_device *udev = priv->udev;
283 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
284
285 if (!usbdata)
286 return -ENOMEM;
287
288 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
289 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
290 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
291 *data = *usbdata;
292 kfree(usbdata);
293
294 if (status < 0) {
295 netdev_err(dev, "%s failure status: %d\n", __func__, status);
296 return status;
297 }
298
299 return 0;
300 }
301 /* as 92U has extend page from 4 to 16, so modify functions below. */
write_nic_byte(struct net_device * dev,int indx,u8 data)302 void write_nic_byte(struct net_device *dev, int indx, u8 data)
303 {
304 int status;
305
306 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
307 struct usb_device *udev = priv->udev;
308 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
309
310 if (!usbdata)
311 return;
312 *usbdata = data;
313
314 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
315 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
316 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
317 usbdata, 1, HZ / 2);
318 kfree(usbdata);
319
320 if (status < 0)
321 netdev_err(dev, "write_nic_byte TimeOut! status: %d\n", status);
322
323
324 }
325
326
write_nic_word(struct net_device * dev,int indx,u16 data)327 void write_nic_word(struct net_device *dev, int indx, u16 data)
328 {
329
330 int status;
331
332 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
333 struct usb_device *udev = priv->udev;
334 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
335
336 if (!usbdata)
337 return;
338 *usbdata = data;
339
340 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
341 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
342 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
343 usbdata, 2, HZ / 2);
344 kfree(usbdata);
345
346 if (status < 0)
347 netdev_err(dev, "write_nic_word TimeOut! status: %d\n", status);
348
349 }
350
351
write_nic_dword(struct net_device * dev,int indx,u32 data)352 void write_nic_dword(struct net_device *dev, int indx, u32 data)
353 {
354
355 int status;
356
357 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
358 struct usb_device *udev = priv->udev;
359 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
360
361 if (!usbdata)
362 return;
363 *usbdata = data;
364
365 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
366 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
367 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
368 usbdata, 4, HZ / 2);
369 kfree(usbdata);
370
371
372 if (status < 0)
373 netdev_err(dev, "write_nic_dword TimeOut! status: %d\n",
374 status);
375
376 }
377
378
379
read_nic_byte(struct net_device * dev,int indx,u8 * data)380 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
381 {
382 int status;
383 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
384 struct usb_device *udev = priv->udev;
385 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
386
387 if (!usbdata)
388 return -ENOMEM;
389
390 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
391 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
392 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
393 usbdata, 1, HZ / 2);
394 *data = *usbdata;
395 kfree(usbdata);
396
397 if (status < 0) {
398 netdev_err(dev, "%s failure status: %d\n", __func__, status);
399 return status;
400 }
401
402 return 0;
403 }
404
405
406
read_nic_word(struct net_device * dev,int indx,u16 * data)407 int read_nic_word(struct net_device *dev, int indx, u16 *data)
408 {
409 int status;
410 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
411 struct usb_device *udev = priv->udev;
412 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
413
414 if (!usbdata)
415 return -ENOMEM;
416
417 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
418 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
419 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
420 usbdata, 2, HZ / 2);
421 *data = *usbdata;
422 kfree(usbdata);
423
424 if (status < 0) {
425 netdev_err(dev, "%s failure status: %d\n", __func__, status);
426 return status;
427 }
428
429 return 0;
430 }
431
read_nic_word_E(struct net_device * dev,int indx,u16 * data)432 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
433 {
434 int status;
435 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
436 struct usb_device *udev = priv->udev;
437 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
438
439 if (!usbdata)
440 return -ENOMEM;
441
442 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
443 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
444 indx | 0xfe00, 0, usbdata, 2, HZ / 2);
445 *data = *usbdata;
446 kfree(usbdata);
447
448 if (status < 0) {
449 netdev_err(dev, "%s failure status: %d\n", __func__, status);
450 return status;
451 }
452
453 return 0;
454 }
455
read_nic_dword(struct net_device * dev,int indx,u32 * data)456 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
457 {
458 int status;
459
460 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
461 struct usb_device *udev = priv->udev;
462 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
463
464 if (!usbdata)
465 return -ENOMEM;
466
467 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
468 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
469 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
470 usbdata, 4, HZ / 2);
471 *data = *usbdata;
472 kfree(usbdata);
473
474 if (status < 0) {
475 netdev_err(dev, "%s failure status: %d\n", __func__, status);
476 return status;
477 }
478
479 return 0;
480 }
481
482 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
483 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
484 /* this might still called in what was the PHY rtl8185/rtl8192 common code
485 * plans are to possibility turn it again in one common code...
486 */
force_pci_posting(struct net_device * dev)487 inline void force_pci_posting(struct net_device *dev)
488 {
489 }
490
491 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
492 static void rtl8192_restart(struct work_struct *work);
493 static void watch_dog_timer_callback(unsigned long data);
494
495 /****************************************************************************
496 * -----------------------------PROCFS STUFF-------------------------
497 *****************************************************************************
498 */
499
500 static struct proc_dir_entry *rtl8192_proc;
501
proc_get_stats_ap(struct seq_file * m,void * v)502 static int proc_get_stats_ap(struct seq_file *m, void *v)
503 {
504 struct net_device *dev = m->private;
505 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
506 struct ieee80211_device *ieee = priv->ieee80211;
507 struct ieee80211_network *target;
508
509 list_for_each_entry(target, &ieee->network_list, list) {
510 const char *wpa = "non_WPA";
511
512 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
513 wpa = "WPA";
514
515 seq_printf(m, "%s %s\n", target->ssid, wpa);
516 }
517
518 return 0;
519 }
520
proc_get_registers(struct seq_file * m,void * v)521 static int proc_get_registers(struct seq_file *m, void *v)
522 {
523 struct net_device *dev = m->private;
524 int i, n, max = 0xff;
525 u8 byte_rd;
526
527 seq_puts(m, "\n####################page 0##################\n ");
528
529 for (n = 0; n <= max;) {
530 seq_printf(m, "\nD: %2x > ", n);
531
532 for (i = 0; i < 16 && n <= max; i++, n++) {
533 read_nic_byte(dev, 0x000 | n, &byte_rd);
534 seq_printf(m, "%2x ", byte_rd);
535 }
536 }
537
538 seq_puts(m, "\n####################page 1##################\n ");
539 for (n = 0; n <= max;) {
540 seq_printf(m, "\nD: %2x > ", n);
541
542 for (i = 0; i < 16 && n <= max; i++, n++) {
543 read_nic_byte(dev, 0x100 | n, &byte_rd);
544 seq_printf(m, "%2x ", byte_rd);
545 }
546 }
547
548 seq_puts(m, "\n####################page 3##################\n ");
549 for (n = 0; n <= max;) {
550 seq_printf(m, "\nD: %2x > ", n);
551
552 for (i = 0; i < 16 && n <= max; i++, n++) {
553 read_nic_byte(dev, 0x300 | n, &byte_rd);
554 seq_printf(m, "%2x ", byte_rd);
555 }
556 }
557
558 seq_putc(m, '\n');
559 return 0;
560 }
561
proc_get_stats_tx(struct seq_file * m,void * v)562 static int proc_get_stats_tx(struct seq_file *m, void *v)
563 {
564 struct net_device *dev = m->private;
565 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
566
567 seq_printf(m,
568 "TX VI priority ok int: %lu\n"
569 "TX VI priority error int: %lu\n"
570 "TX VO priority ok int: %lu\n"
571 "TX VO priority error int: %lu\n"
572 "TX BE priority ok int: %lu\n"
573 "TX BE priority error int: %lu\n"
574 "TX BK priority ok int: %lu\n"
575 "TX BK priority error int: %lu\n"
576 "TX MANAGE priority ok int: %lu\n"
577 "TX MANAGE priority error int: %lu\n"
578 "TX BEACON priority ok int: %lu\n"
579 "TX BEACON priority error int: %lu\n"
580 "TX queue resume: %lu\n"
581 "TX queue stopped?: %d\n"
582 "TX fifo overflow: %lu\n"
583 "TX VI queue: %d\n"
584 "TX VO queue: %d\n"
585 "TX BE queue: %d\n"
586 "TX BK queue: %d\n"
587 "TX VI dropped: %lu\n"
588 "TX VO dropped: %lu\n"
589 "TX BE dropped: %lu\n"
590 "TX BK dropped: %lu\n"
591 "TX total data packets %lu\n",
592 priv->stats.txviokint,
593 priv->stats.txvierr,
594 priv->stats.txvookint,
595 priv->stats.txvoerr,
596 priv->stats.txbeokint,
597 priv->stats.txbeerr,
598 priv->stats.txbkokint,
599 priv->stats.txbkerr,
600 priv->stats.txmanageokint,
601 priv->stats.txmanageerr,
602 priv->stats.txbeaconokint,
603 priv->stats.txbeaconerr,
604 priv->stats.txresumed,
605 netif_queue_stopped(dev),
606 priv->stats.txoverflow,
607 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
608 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
609 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
610 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
611 priv->stats.txvidrop,
612 priv->stats.txvodrop,
613 priv->stats.txbedrop,
614 priv->stats.txbkdrop,
615 priv->stats.txdatapkt
616 );
617
618 return 0;
619 }
620
proc_get_stats_rx(struct seq_file * m,void * v)621 static int proc_get_stats_rx(struct seq_file *m, void *v)
622 {
623 struct net_device *dev = m->private;
624 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
625
626 seq_printf(m,
627 "RX packets: %lu\n"
628 "RX urb status error: %lu\n"
629 "RX invalid urb error: %lu\n",
630 priv->stats.rxoktotal,
631 priv->stats.rxstaterr,
632 priv->stats.rxurberr);
633
634 return 0;
635 }
636
rtl8192_proc_module_init(void)637 static void rtl8192_proc_module_init(void)
638 {
639 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
640 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
641 }
642
643 /*
644 * seq_file wrappers for procfile show routines.
645 */
rtl8192_proc_open(struct inode * inode,struct file * file)646 static int rtl8192_proc_open(struct inode *inode, struct file *file)
647 {
648 struct net_device *dev = proc_get_parent_data(inode);
649 int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
650
651 return single_open(file, show, dev);
652 }
653
654 static const struct file_operations rtl8192_proc_fops = {
655 .open = rtl8192_proc_open,
656 .read = seq_read,
657 .llseek = seq_lseek,
658 .release = single_release,
659 };
660
661 /*
662 * Table of proc files we need to create.
663 */
664 struct rtl8192_proc_file {
665 char name[12];
666 int (*show)(struct seq_file *, void *);
667 };
668
669 static const struct rtl8192_proc_file rtl8192_proc_files[] = {
670 { "stats-rx", &proc_get_stats_rx },
671 { "stats-tx", &proc_get_stats_tx },
672 { "stats-ap", &proc_get_stats_ap },
673 { "registers", &proc_get_registers },
674 { "" }
675 };
676
rtl8192_proc_init_one(struct net_device * dev)677 static void rtl8192_proc_init_one(struct net_device *dev)
678 {
679 const struct rtl8192_proc_file *f;
680 struct proc_dir_entry *dir;
681
682 if (rtl8192_proc) {
683 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
684 if (!dir) {
685 RT_TRACE(COMP_ERR,
686 "Unable to initialize /proc/net/rtl8192/%s\n",
687 dev->name);
688 return;
689 }
690
691 for (f = rtl8192_proc_files; f->name[0]; f++) {
692 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
693 &rtl8192_proc_fops, f->show)) {
694 RT_TRACE(COMP_ERR,
695 "Unable to initialize /proc/net/rtl8192/%s/%s\n",
696 dev->name, f->name);
697 return;
698 }
699 }
700 }
701 }
702
rtl8192_proc_remove_one(struct net_device * dev)703 static void rtl8192_proc_remove_one(struct net_device *dev)
704 {
705 remove_proc_subtree(dev->name, rtl8192_proc);
706 }
707
708 /****************************************************************************
709 -----------------------------MISC STUFF-------------------------
710 *****************************************************************************/
711
check_nic_enough_desc(struct net_device * dev,int queue_index)712 short check_nic_enough_desc(struct net_device *dev, int queue_index)
713 {
714 struct r8192_priv *priv = ieee80211_priv(dev);
715 int used = atomic_read(&priv->tx_pending[queue_index]);
716
717 return (used < MAX_TX_URB);
718 }
719
tx_timeout(struct net_device * dev)720 static void tx_timeout(struct net_device *dev)
721 {
722 struct r8192_priv *priv = ieee80211_priv(dev);
723
724 schedule_work(&priv->reset_wq);
725 }
726
rtl8192_update_msr(struct net_device * dev)727 void rtl8192_update_msr(struct net_device *dev)
728 {
729 struct r8192_priv *priv = ieee80211_priv(dev);
730 u8 msr;
731
732 read_nic_byte(dev, MSR, &msr);
733 msr &= ~MSR_LINK_MASK;
734
735 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
736 * msr must be updated if the state is ASSOCIATING.
737 * this is intentional and make sense for ad-hoc and
738 * master (see the create BSS/IBSS func)
739 */
740 if (priv->ieee80211->state == IEEE80211_LINKED) {
741
742 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
743 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
744 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
745 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
746 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
747 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
748
749 } else {
750 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
751 }
752
753 write_nic_byte(dev, MSR, msr);
754 }
755
rtl8192_set_chan(struct net_device * dev,short ch)756 void rtl8192_set_chan(struct net_device *dev, short ch)
757 {
758 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
759
760 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
761 priv->chan = ch;
762
763 /* this hack should avoid frame TX during channel setting*/
764
765 /* need to implement rf set channel here */
766
767 if (priv->rf_set_chan)
768 priv->rf_set_chan(dev, priv->chan);
769 mdelay(10);
770 }
771
772 static void rtl8192_rx_isr(struct urb *urb);
773
get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats * pstats)774 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
775 {
776
777 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
778 + pstats->RxBufShift);
779
780 }
rtl8192_rx_initiate(struct net_device * dev)781 static int rtl8192_rx_initiate(struct net_device *dev)
782 {
783 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
784 struct urb *entry;
785 struct sk_buff *skb;
786 struct rtl8192_rx_info *info;
787
788 /* nomal packet rx procedure */
789 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
790 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
791 if (!skb)
792 break;
793 entry = usb_alloc_urb(0, GFP_KERNEL);
794 if (!entry) {
795 kfree_skb(skb);
796 break;
797 }
798 usb_fill_bulk_urb(entry, priv->udev,
799 usb_rcvbulkpipe(priv->udev, 3),
800 skb_tail_pointer(skb),
801 RX_URB_SIZE, rtl8192_rx_isr, skb);
802 info = (struct rtl8192_rx_info *)skb->cb;
803 info->urb = entry;
804 info->dev = dev;
805 info->out_pipe = 3; /* denote rx normal packet queue */
806 skb_queue_tail(&priv->rx_queue, skb);
807 usb_submit_urb(entry, GFP_KERNEL);
808 }
809
810 /* command packet rx procedure */
811 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
812 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
813 if (!skb)
814 break;
815 entry = usb_alloc_urb(0, GFP_KERNEL);
816 if (!entry) {
817 kfree_skb(skb);
818 break;
819 }
820 usb_fill_bulk_urb(entry, priv->udev,
821 usb_rcvbulkpipe(priv->udev, 9),
822 skb_tail_pointer(skb),
823 RX_URB_SIZE, rtl8192_rx_isr, skb);
824 info = (struct rtl8192_rx_info *)skb->cb;
825 info->urb = entry;
826 info->dev = dev;
827 info->out_pipe = 9; /* denote rx cmd packet queue */
828 skb_queue_tail(&priv->rx_queue, skb);
829 usb_submit_urb(entry, GFP_KERNEL);
830 }
831
832 return 0;
833 }
834
rtl8192_set_rxconf(struct net_device * dev)835 void rtl8192_set_rxconf(struct net_device *dev)
836 {
837 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
838 u32 rxconf;
839
840 read_nic_dword(dev, RCR, &rxconf);
841 rxconf = rxconf & ~MAC_FILTER_MASK;
842 rxconf = rxconf | RCR_AMF;
843 rxconf = rxconf | RCR_ADF;
844 rxconf = rxconf | RCR_AB;
845 rxconf = rxconf | RCR_AM;
846
847 if (dev->flags & IFF_PROMISC)
848 DMESG("NIC in promisc mode");
849
850 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
851 dev->flags & IFF_PROMISC) {
852 rxconf = rxconf | RCR_AAP;
853 } else {
854 rxconf = rxconf | RCR_APM;
855 rxconf = rxconf | RCR_CBSSID;
856 }
857
858
859 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
860 rxconf = rxconf | RCR_AICV;
861 rxconf = rxconf | RCR_APWRMGT;
862 }
863
864 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
865 rxconf = rxconf | RCR_ACRC32;
866
867
868 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
869 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
870 rxconf = rxconf & ~MAX_RX_DMA_MASK;
871 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
872
873 rxconf = rxconf | RCR_ONLYERLPKT;
874
875 write_nic_dword(dev, RCR, rxconf);
876 }
877 /* wait to be removed */
rtl8192_rx_enable(struct net_device * dev)878 void rtl8192_rx_enable(struct net_device *dev)
879 {
880 rtl8192_rx_initiate(dev);
881 }
882
883
rtl8192_tx_enable(struct net_device * dev)884 void rtl8192_tx_enable(struct net_device *dev)
885 {
886 }
887
888
889
rtl8192_rtx_disable(struct net_device * dev)890 void rtl8192_rtx_disable(struct net_device *dev)
891 {
892 u8 cmd;
893 struct r8192_priv *priv = ieee80211_priv(dev);
894 struct sk_buff *skb;
895 struct rtl8192_rx_info *info;
896
897 read_nic_byte(dev, CMDR, &cmd);
898 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
899 force_pci_posting(dev);
900 mdelay(10);
901
902 while ((skb = __skb_dequeue(&priv->rx_queue))) {
903 info = (struct rtl8192_rx_info *)skb->cb;
904 if (!info->urb)
905 continue;
906
907 usb_kill_urb(info->urb);
908 kfree_skb(skb);
909 }
910
911 if (skb_queue_len(&priv->skb_queue))
912 netdev_warn(dev, "skb_queue not empty\n");
913
914 skb_queue_purge(&priv->skb_queue);
915 }
916
ieeerate2rtlrate(int rate)917 inline u16 ieeerate2rtlrate(int rate)
918 {
919 switch (rate) {
920 case 10:
921 return 0;
922 case 20:
923 return 1;
924 case 55:
925 return 2;
926 case 110:
927 return 3;
928 case 60:
929 return 4;
930 case 90:
931 return 5;
932 case 120:
933 return 6;
934 case 180:
935 return 7;
936 case 240:
937 return 8;
938 case 360:
939 return 9;
940 case 480:
941 return 10;
942 case 540:
943 return 11;
944 default:
945 return 3;
946
947 }
948 }
949 static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540};
rtl8192_rate2rate(short rate)950 inline u16 rtl8192_rate2rate(short rate)
951 {
952 if (rate > 11)
953 return 0;
954 return rtl_rate[rate];
955 }
956
957
958 /* The prototype of rx_isr has changed since one version of Linux Kernel */
rtl8192_rx_isr(struct urb * urb)959 static void rtl8192_rx_isr(struct urb *urb)
960 {
961 struct sk_buff *skb = (struct sk_buff *)urb->context;
962 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
963 struct net_device *dev = info->dev;
964 struct r8192_priv *priv = ieee80211_priv(dev);
965 int out_pipe = info->out_pipe;
966 int err;
967
968 if (!priv->up)
969 return;
970
971 if (unlikely(urb->status)) {
972 info->urb = NULL;
973 priv->stats.rxstaterr++;
974 priv->ieee80211->stats.rx_errors++;
975 usb_free_urb(urb);
976 return;
977 }
978 skb_unlink(skb, &priv->rx_queue);
979 skb_put(skb, urb->actual_length);
980
981 skb_queue_tail(&priv->skb_queue, skb);
982 tasklet_schedule(&priv->irq_rx_tasklet);
983
984 skb = dev_alloc_skb(RX_URB_SIZE);
985 if (unlikely(!skb)) {
986 usb_free_urb(urb);
987 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
988 /* TODO check rx queue length and refill *somewhere* */
989 return;
990 }
991
992 usb_fill_bulk_urb(urb, priv->udev,
993 usb_rcvbulkpipe(priv->udev, out_pipe),
994 skb_tail_pointer(skb),
995 RX_URB_SIZE, rtl8192_rx_isr, skb);
996
997 info = (struct rtl8192_rx_info *)skb->cb;
998 info->urb = urb;
999 info->dev = dev;
1000 info->out_pipe = out_pipe;
1001
1002 urb->transfer_buffer = skb_tail_pointer(skb);
1003 urb->context = skb;
1004 skb_queue_tail(&priv->rx_queue, skb);
1005 err = usb_submit_urb(urb, GFP_ATOMIC);
1006 if (err && err != EPERM)
1007 netdev_err(dev,
1008 "can not submit rxurb, err is %x, URB status is %x\n",
1009 err, urb->status);
1010 }
1011
rtl819xusb_rx_command_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)1012 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
1013 struct ieee80211_rx_stats *pstats)
1014 {
1015 u32 status;
1016
1017 status = cmpk_message_handle_rx(dev, pstats);
1018 if (status)
1019 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
1020
1021 return status;
1022 }
1023
1024
rtl8192_data_hard_stop(struct net_device * dev)1025 static void rtl8192_data_hard_stop(struct net_device *dev)
1026 {
1027 /* FIXME !! */
1028 }
1029
1030
rtl8192_data_hard_resume(struct net_device * dev)1031 static void rtl8192_data_hard_resume(struct net_device *dev)
1032 {
1033 /* FIXME !! */
1034 }
1035
1036 /* this function TX data frames when the ieee80211 stack requires this.
1037 * It checks also if we need to stop the ieee tx queue, eventually do it
1038 */
rtl8192_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1039 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1040 int rate)
1041 {
1042 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1043 int ret;
1044 unsigned long flags;
1045 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1046 u8 queue_index = tcb_desc->queue_index;
1047
1048 /* shall not be referred by command packet */
1049 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
1050
1051 spin_lock_irqsave(&priv->tx_lock, flags);
1052
1053 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1054 tcb_desc->bTxEnableFwCalcDur = 1;
1055 skb_push(skb, priv->ieee80211->tx_headroom);
1056 ret = rtl8192_tx(dev, skb);
1057
1058 spin_unlock_irqrestore(&priv->tx_lock, flags);
1059 }
1060
1061 /* This is a rough attempt to TX a frame
1062 * This is called by the ieee 80211 stack to TX management frames.
1063 * If the ring is full packet are dropped (for data frame the queue
1064 * is stopped before this can happen).
1065 */
rtl8192_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1066 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1067 {
1068 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1069 int ret;
1070 unsigned long flags;
1071 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1072 u8 queue_index = tcb_desc->queue_index;
1073
1074
1075 spin_lock_irqsave(&priv->tx_lock, flags);
1076
1077 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1078 if (queue_index == TXCMD_QUEUE) {
1079 skb_push(skb, USB_HWDESC_HEADER_LEN);
1080 rtl819xU_tx_cmd(dev, skb);
1081 ret = 1;
1082 } else {
1083 skb_push(skb, priv->ieee80211->tx_headroom);
1084 ret = rtl8192_tx(dev, skb);
1085 }
1086
1087 spin_unlock_irqrestore(&priv->tx_lock, flags);
1088
1089 return ret;
1090 }
1091
rtl8192_tx_isr(struct urb * tx_urb)1092 static void rtl8192_tx_isr(struct urb *tx_urb)
1093 {
1094 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
1095 struct net_device *dev = (struct net_device *)(skb->cb);
1096 struct r8192_priv *priv = NULL;
1097 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1098 u8 queue_index = tcb_desc->queue_index;
1099
1100 priv = ieee80211_priv(dev);
1101
1102 if (tcb_desc->queue_index != TXCMD_QUEUE) {
1103 if (tx_urb->status == 0) {
1104 dev->trans_start = jiffies;
1105 priv->stats.txoktotal++;
1106 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
1107 priv->stats.txbytesunicast +=
1108 (skb->len - priv->ieee80211->tx_headroom);
1109 } else {
1110 priv->ieee80211->stats.tx_errors++;
1111 /* TODO */
1112 }
1113 }
1114
1115 /* free skb and tx_urb */
1116 if (skb != NULL) {
1117 dev_kfree_skb_any(skb);
1118 usb_free_urb(tx_urb);
1119 atomic_dec(&priv->tx_pending[queue_index]);
1120 }
1121
1122 /*
1123 * Handle HW Beacon:
1124 * We had transfer our beacon frame to host controller at this moment.
1125 *
1126 *
1127 * Caution:
1128 * Handling the wait queue of command packets.
1129 * For Tx command packets, we must not do TCB fragment because it is
1130 * not handled right now. We must cut the packets to match the size of
1131 * TX_CMD_PKT before we send it.
1132 */
1133
1134 /* Handle MPDU in wait queue. */
1135 if (queue_index != BEACON_QUEUE) {
1136 /* Don't send data frame during scanning.*/
1137 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1138 (!(priv->ieee80211->queue_stop))) {
1139 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1140 if (skb)
1141 priv->ieee80211->softmac_hard_start_xmit(skb,
1142 dev);
1143
1144 return; /* avoid further processing AMSDU */
1145 }
1146 }
1147
1148 }
1149
rtl8192_config_rate(struct net_device * dev,u16 * rate_config)1150 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1151 {
1152 struct r8192_priv *priv = ieee80211_priv(dev);
1153 struct ieee80211_network *net;
1154 u8 i = 0, basic_rate = 0;
1155
1156 net = &priv->ieee80211->current_network;
1157
1158 for (i = 0; i < net->rates_len; i++) {
1159 basic_rate = net->rates[i] & 0x7f;
1160 switch (basic_rate) {
1161 case MGN_1M:
1162 *rate_config |= RRSR_1M;
1163 break;
1164 case MGN_2M:
1165 *rate_config |= RRSR_2M;
1166 break;
1167 case MGN_5_5M:
1168 *rate_config |= RRSR_5_5M;
1169 break;
1170 case MGN_11M:
1171 *rate_config |= RRSR_11M;
1172 break;
1173 case MGN_6M:
1174 *rate_config |= RRSR_6M;
1175 break;
1176 case MGN_9M:
1177 *rate_config |= RRSR_9M;
1178 break;
1179 case MGN_12M:
1180 *rate_config |= RRSR_12M;
1181 break;
1182 case MGN_18M:
1183 *rate_config |= RRSR_18M;
1184 break;
1185 case MGN_24M:
1186 *rate_config |= RRSR_24M;
1187 break;
1188 case MGN_36M:
1189 *rate_config |= RRSR_36M;
1190 break;
1191 case MGN_48M:
1192 *rate_config |= RRSR_48M;
1193 break;
1194 case MGN_54M:
1195 *rate_config |= RRSR_54M;
1196 break;
1197 }
1198 }
1199 for (i = 0; i < net->rates_ex_len; i++) {
1200 basic_rate = net->rates_ex[i] & 0x7f;
1201 switch (basic_rate) {
1202 case MGN_1M:
1203 *rate_config |= RRSR_1M;
1204 break;
1205 case MGN_2M:
1206 *rate_config |= RRSR_2M;
1207 break;
1208 case MGN_5_5M:
1209 *rate_config |= RRSR_5_5M;
1210 break;
1211 case MGN_11M:
1212 *rate_config |= RRSR_11M;
1213 break;
1214 case MGN_6M:
1215 *rate_config |= RRSR_6M;
1216 break;
1217 case MGN_9M:
1218 *rate_config |= RRSR_9M;
1219 break;
1220 case MGN_12M:
1221 *rate_config |= RRSR_12M;
1222 break;
1223 case MGN_18M:
1224 *rate_config |= RRSR_18M;
1225 break;
1226 case MGN_24M:
1227 *rate_config |= RRSR_24M;
1228 break;
1229 case MGN_36M:
1230 *rate_config |= RRSR_36M;
1231 break;
1232 case MGN_48M:
1233 *rate_config |= RRSR_48M;
1234 break;
1235 case MGN_54M:
1236 *rate_config |= RRSR_54M;
1237 break;
1238 }
1239 }
1240 }
1241
1242
1243 #define SHORT_SLOT_TIME 9
1244 #define NON_SHORT_SLOT_TIME 20
1245
rtl8192_update_cap(struct net_device * dev,u16 cap)1246 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1247 {
1248 u32 tmp = 0;
1249 struct r8192_priv *priv = ieee80211_priv(dev);
1250 struct ieee80211_network *net = &priv->ieee80211->current_network;
1251
1252 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1253 tmp = priv->basic_rate;
1254 if (priv->short_preamble)
1255 tmp |= BRSR_AckShortPmb;
1256 write_nic_dword(dev, RRSR, tmp);
1257
1258 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1259 u8 slot_time = 0;
1260
1261 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1262 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1263 /* short slot time */
1264 slot_time = SHORT_SLOT_TIME;
1265 else /* long slot time */
1266 slot_time = NON_SHORT_SLOT_TIME;
1267 priv->slot_time = slot_time;
1268 write_nic_byte(dev, SLOT_TIME, slot_time);
1269 }
1270
1271 }
rtl8192_net_update(struct net_device * dev)1272 static void rtl8192_net_update(struct net_device *dev)
1273 {
1274
1275 struct r8192_priv *priv = ieee80211_priv(dev);
1276 struct ieee80211_network *net;
1277 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1278 u16 rate_config = 0;
1279
1280 net = &priv->ieee80211->current_network;
1281
1282 rtl8192_config_rate(dev, &rate_config);
1283 priv->basic_rate = rate_config & 0x15f;
1284
1285 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1286 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1287
1288 rtl8192_update_msr(dev);
1289 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1290 write_nic_word(dev, ATIMWND, 2);
1291 write_nic_word(dev, BCN_DMATIME, 1023);
1292 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1293 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1294 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1295 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1296 /* TODO: BcnIFS may required to be changed on ASIC */
1297 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1298
1299 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1300 }
1301
1302
1303
1304 }
1305
1306 /* temporary hw beacon is not used any more.
1307 * open it when necessary
1308 */
rtl819xusb_beacon_tx(struct net_device * dev,u16 tx_rate)1309 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1310 {
1311
1312 }
rtl8192_IsWirelessBMode(u16 rate)1313 inline u8 rtl8192_IsWirelessBMode(u16 rate)
1314 {
1315 if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220))
1316 return 1;
1317 else
1318 return 0;
1319 }
1320
rtl819xU_tx_cmd(struct net_device * dev,struct sk_buff * skb)1321 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1322 {
1323 struct r8192_priv *priv = ieee80211_priv(dev);
1324 int status;
1325 struct urb *tx_urb;
1326 unsigned int idx_pipe;
1327 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
1328 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1329 u8 queue_index = tcb_desc->queue_index;
1330
1331 atomic_inc(&priv->tx_pending[queue_index]);
1332 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1333 if (!tx_urb) {
1334 dev_kfree_skb(skb);
1335 return -ENOMEM;
1336 }
1337
1338 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1339 /* Tx descriptor ought to be set according to the skb->cb */
1340 pdesc->FirstSeg = 1;
1341 pdesc->LastSeg = 1;
1342 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1343 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1344 pdesc->OWN = 1;
1345 pdesc->LINIP = tcb_desc->bLastIniPkt;
1346
1347 /*---------------------------------------------------------------------
1348 * Fill up USB_OUT_CONTEXT.
1349 *---------------------------------------------------------------------
1350 */
1351 idx_pipe = 0x04;
1352 usb_fill_bulk_urb(tx_urb, priv->udev,
1353 usb_sndbulkpipe(priv->udev, idx_pipe),
1354 skb->data, skb->len, rtl8192_tx_isr, skb);
1355
1356 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1357
1358 if (!status)
1359 return 0;
1360
1361 DMESGE("Error TX CMD URB, error %d", status);
1362 return -1;
1363 }
1364
1365 /*
1366 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1367 * in TxFwInfo data structure
1368 * 2006.10.30 by Emily
1369 *
1370 * \param QUEUEID Software Queue
1371 */
MapHwQueueToFirmwareQueue(u8 QueueID)1372 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1373 {
1374 u8 QueueSelect = 0x0; /* defualt set to */
1375
1376 switch (QueueID) {
1377 case BE_QUEUE:
1378 QueueSelect = QSLT_BE;
1379 break;
1380
1381 case BK_QUEUE:
1382 QueueSelect = QSLT_BK;
1383 break;
1384
1385 case VO_QUEUE:
1386 QueueSelect = QSLT_VO;
1387 break;
1388
1389 case VI_QUEUE:
1390 QueueSelect = QSLT_VI;
1391 break;
1392 case MGNT_QUEUE:
1393 QueueSelect = QSLT_MGNT;
1394 break;
1395
1396 case BEACON_QUEUE:
1397 QueueSelect = QSLT_BEACON;
1398 break;
1399
1400 /* TODO: mark other queue selection until we verify it is OK */
1401 /* TODO: Remove Assertions */
1402 case TXCMD_QUEUE:
1403 QueueSelect = QSLT_CMD;
1404 break;
1405 case HIGH_QUEUE:
1406 QueueSelect = QSLT_HIGH;
1407 break;
1408
1409 default:
1410 RT_TRACE(COMP_ERR,
1411 "TransmitTCB(): Impossible Queue Selection: %d\n",
1412 QueueID);
1413 break;
1414 }
1415 return QueueSelect;
1416 }
1417
MRateToHwRate8190Pci(u8 rate)1418 static u8 MRateToHwRate8190Pci(u8 rate)
1419 {
1420 u8 ret = DESC90_RATE1M;
1421
1422 switch (rate) {
1423 case MGN_1M:
1424 ret = DESC90_RATE1M;
1425 break;
1426 case MGN_2M:
1427 ret = DESC90_RATE2M;
1428 break;
1429 case MGN_5_5M:
1430 ret = DESC90_RATE5_5M;
1431 break;
1432 case MGN_11M:
1433 ret = DESC90_RATE11M;
1434 break;
1435 case MGN_6M:
1436 ret = DESC90_RATE6M;
1437 break;
1438 case MGN_9M:
1439 ret = DESC90_RATE9M;
1440 break;
1441 case MGN_12M:
1442 ret = DESC90_RATE12M;
1443 break;
1444 case MGN_18M:
1445 ret = DESC90_RATE18M;
1446 break;
1447 case MGN_24M:
1448 ret = DESC90_RATE24M;
1449 break;
1450 case MGN_36M:
1451 ret = DESC90_RATE36M;
1452 break;
1453 case MGN_48M:
1454 ret = DESC90_RATE48M;
1455 break;
1456 case MGN_54M:
1457 ret = DESC90_RATE54M;
1458 break;
1459
1460 /* HT rate since here */
1461 case MGN_MCS0:
1462 ret = DESC90_RATEMCS0;
1463 break;
1464 case MGN_MCS1:
1465 ret = DESC90_RATEMCS1;
1466 break;
1467 case MGN_MCS2:
1468 ret = DESC90_RATEMCS2;
1469 break;
1470 case MGN_MCS3:
1471 ret = DESC90_RATEMCS3;
1472 break;
1473 case MGN_MCS4:
1474 ret = DESC90_RATEMCS4;
1475 break;
1476 case MGN_MCS5:
1477 ret = DESC90_RATEMCS5;
1478 break;
1479 case MGN_MCS6:
1480 ret = DESC90_RATEMCS6;
1481 break;
1482 case MGN_MCS7:
1483 ret = DESC90_RATEMCS7;
1484 break;
1485 case MGN_MCS8:
1486 ret = DESC90_RATEMCS8;
1487 break;
1488 case MGN_MCS9:
1489 ret = DESC90_RATEMCS9;
1490 break;
1491 case MGN_MCS10:
1492 ret = DESC90_RATEMCS10;
1493 break;
1494 case MGN_MCS11:
1495 ret = DESC90_RATEMCS11;
1496 break;
1497 case MGN_MCS12:
1498 ret = DESC90_RATEMCS12;
1499 break;
1500 case MGN_MCS13:
1501 ret = DESC90_RATEMCS13;
1502 break;
1503 case MGN_MCS14:
1504 ret = DESC90_RATEMCS14;
1505 break;
1506 case MGN_MCS15:
1507 ret = DESC90_RATEMCS15;
1508 break;
1509 case (0x80 | 0x20):
1510 ret = DESC90_RATEMCS32;
1511 break;
1512
1513 default:
1514 break;
1515 }
1516 return ret;
1517 }
1518
1519
QueryIsShort(u8 TxHT,u8 TxRate,cb_desc * tcb_desc)1520 static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
1521 {
1522 u8 tmp_Short;
1523
1524 tmp_Short = (TxHT == 1) ?
1525 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1526 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1527
1528 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1529 tmp_Short = 0;
1530
1531 return tmp_Short;
1532 }
1533
tx_zero_isr(struct urb * tx_urb)1534 static void tx_zero_isr(struct urb *tx_urb)
1535 {
1536 }
1537
1538 /*
1539 * The tx procedure is just as following,
1540 * skb->cb will contain all the following information,
1541 * priority, morefrag, rate, &dev.
1542 * */
rtl8192_tx(struct net_device * dev,struct sk_buff * skb)1543 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1544 {
1545 struct r8192_priv *priv = ieee80211_priv(dev);
1546 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1547 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
1548 tx_fwinfo_819x_usb *tx_fwinfo =
1549 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1550 struct usb_device *udev = priv->udev;
1551 int pend;
1552 int status;
1553 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1554 unsigned int idx_pipe;
1555
1556 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1557 /* we are locked here so the two atomic_read and inc are executed
1558 * without interleaves
1559 * !!! For debug purpose
1560 */
1561 if (pend > MAX_TX_URB) {
1562 netdev_dbg(dev, "To discard skb packet!\n");
1563 dev_kfree_skb_any(skb);
1564 return -1;
1565 }
1566
1567 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1568 if (!tx_urb) {
1569 dev_kfree_skb_any(skb);
1570 return -ENOMEM;
1571 }
1572
1573 /* Fill Tx firmware info */
1574 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
1575 /* DWORD 0 */
1576 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1577 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1578 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1579 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1580 tcb_desc);
1581 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1582 tx_fwinfo->AllowAggregation = 1;
1583 /* DWORD 1 */
1584 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1585 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1586 } else {
1587 tx_fwinfo->AllowAggregation = 0;
1588 /* DWORD 1 */
1589 tx_fwinfo->RxMF = 0;
1590 tx_fwinfo->RxAMD = 0;
1591 }
1592
1593 /* Protection mode related */
1594 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1595 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1596 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1597 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1598 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1599 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1600 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1601 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1602 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1603
1604 /* Set Bandwidth and sub-channel settings. */
1605 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1606 if (tcb_desc->bPacketBW) {
1607 tx_fwinfo->TxBandwidth = 1;
1608 /* use duplicated mode */
1609 tx_fwinfo->TxSubCarrier = 0;
1610 } else {
1611 tx_fwinfo->TxBandwidth = 0;
1612 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1613 }
1614 } else {
1615 tx_fwinfo->TxBandwidth = 0;
1616 tx_fwinfo->TxSubCarrier = 0;
1617 }
1618
1619 /* Fill Tx descriptor */
1620 memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
1621 /* DWORD 0 */
1622 tx_desc->LINIP = 0;
1623 tx_desc->CmdInit = 1;
1624 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
1625 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1626
1627 /*DWORD 1*/
1628 tx_desc->SecCAMID = 0;
1629 tx_desc->RATid = tcb_desc->RATRIndex;
1630 tx_desc->NoEnc = 1;
1631 tx_desc->SecType = 0x0;
1632 if (tcb_desc->bHwSec) {
1633 switch (priv->ieee80211->pairwise_key_type) {
1634 case KEY_TYPE_WEP40:
1635 case KEY_TYPE_WEP104:
1636 tx_desc->SecType = 0x1;
1637 tx_desc->NoEnc = 0;
1638 break;
1639 case KEY_TYPE_TKIP:
1640 tx_desc->SecType = 0x2;
1641 tx_desc->NoEnc = 0;
1642 break;
1643 case KEY_TYPE_CCMP:
1644 tx_desc->SecType = 0x3;
1645 tx_desc->NoEnc = 0;
1646 break;
1647 case KEY_TYPE_NA:
1648 tx_desc->SecType = 0x0;
1649 tx_desc->NoEnc = 1;
1650 break;
1651 }
1652 }
1653
1654 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1655 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
1656
1657 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1658 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1659
1660 /* Fill fields that are required to be initialized in
1661 * all of the descriptors
1662 */
1663 /* DWORD 0 */
1664 tx_desc->FirstSeg = 1;
1665 tx_desc->LastSeg = 1;
1666 tx_desc->OWN = 1;
1667
1668 /* DWORD 2 */
1669 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1670 idx_pipe = 0x5;
1671
1672 /* To submit bulk urb */
1673 usb_fill_bulk_urb(tx_urb, udev,
1674 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1675 skb->len, rtl8192_tx_isr, skb);
1676
1677 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1678 if (!status) {
1679 /* We need to send 0 byte packet whenever
1680 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1681 * been transmitted. Otherwise, it will be halt to wait for
1682 * another packet.
1683 */
1684 bool bSend0Byte = false;
1685 u8 zero = 0;
1686
1687 if (udev->speed == USB_SPEED_HIGH) {
1688 if (skb->len > 0 && skb->len % 512 == 0)
1689 bSend0Byte = true;
1690 } else {
1691 if (skb->len > 0 && skb->len % 64 == 0)
1692 bSend0Byte = true;
1693 }
1694 if (bSend0Byte) {
1695 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1696 if (!tx_urb_zero) {
1697 RT_TRACE(COMP_ERR,
1698 "can't alloc urb for zero byte\n");
1699 return -ENOMEM;
1700 }
1701 usb_fill_bulk_urb(tx_urb_zero, udev,
1702 usb_sndbulkpipe(udev, idx_pipe),
1703 &zero, 0, tx_zero_isr, dev);
1704 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1705 if (status) {
1706 RT_TRACE(COMP_ERR,
1707 "Error TX URB for zero byte %d, error %d",
1708 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1709 status);
1710 return -1;
1711 }
1712 }
1713 dev->trans_start = jiffies;
1714 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1715 return 0;
1716 }
1717
1718 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1719 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1720 status);
1721 return -1;
1722 }
1723
rtl8192_usb_initendpoints(struct net_device * dev)1724 static short rtl8192_usb_initendpoints(struct net_device *dev)
1725 {
1726 struct r8192_priv *priv = ieee80211_priv(dev);
1727
1728 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
1729 GFP_KERNEL);
1730 if (priv->rx_urb == NULL)
1731 return -ENOMEM;
1732
1733 #ifndef JACKSON_NEW_RX
1734 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1735
1736 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1737
1738 priv->rx_urb[i]->transfer_buffer =
1739 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1740
1741 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1742 }
1743 #endif
1744
1745 #ifdef THOMAS_BEACON
1746 {
1747 long align = 0;
1748 void *oldaddr, *newaddr;
1749
1750 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1751 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1752 oldaddr = priv->oldaddr;
1753 align = ((long)oldaddr) & 3;
1754 if (align) {
1755 newaddr = oldaddr + 4 - align;
1756 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1757 } else {
1758 newaddr = oldaddr;
1759 priv->rx_urb[16]->transfer_buffer_length = 16;
1760 }
1761 priv->rx_urb[16]->transfer_buffer = newaddr;
1762 }
1763 #endif
1764
1765 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1766 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1767 GFP_KERNEL);
1768 if (!priv->pp_rxskb) {
1769 kfree(priv->rx_urb);
1770
1771 priv->pp_rxskb = NULL;
1772 priv->rx_urb = NULL;
1773
1774 DMESGE("Endpoint Alloc Failure");
1775 return -ENOMEM;
1776 }
1777
1778 netdev_dbg(dev, "End of initendpoints\n");
1779 return 0;
1780
1781 }
1782 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1783 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1784 {
1785 int i;
1786 struct r8192_priv *priv = ieee80211_priv(dev);
1787
1788 if (priv->rx_urb) {
1789 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1790 usb_kill_urb(priv->rx_urb[i]);
1791 usb_free_urb(priv->rx_urb[i]);
1792 }
1793 kfree(priv->rx_urb);
1794 priv->rx_urb = NULL;
1795 }
1796 kfree(priv->oldaddr);
1797 priv->oldaddr = NULL;
1798
1799 kfree(priv->pp_rxskb);
1800 priv->pp_rxskb = NULL;
1801 }
1802 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1803 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1804 {
1805 int i;
1806 struct r8192_priv *priv = ieee80211_priv(dev);
1807
1808 #ifndef JACKSON_NEW_RX
1809
1810 if (priv->rx_urb) {
1811 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1812 usb_kill_urb(priv->rx_urb[i]);
1813 kfree(priv->rx_urb[i]->transfer_buffer);
1814 usb_free_urb(priv->rx_urb[i]);
1815 }
1816 kfree(priv->rx_urb);
1817 priv->rx_urb = NULL;
1818
1819 }
1820 #else
1821 kfree(priv->rx_urb);
1822 priv->rx_urb = NULL;
1823 kfree(priv->oldaddr);
1824 priv->oldaddr = NULL;
1825
1826 kfree(priv->pp_rxskb);
1827 priv->pp_rxskb = 0;
1828
1829 #endif
1830 }
1831 #endif
1832
1833 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1834 static void rtl8192_link_change(struct net_device *dev)
1835 {
1836 struct r8192_priv *priv = ieee80211_priv(dev);
1837 struct ieee80211_device *ieee = priv->ieee80211;
1838
1839 if (ieee->state == IEEE80211_LINKED) {
1840 rtl8192_net_update(dev);
1841 rtl8192_update_ratr_table(dev);
1842 /* Add this as in pure N mode, wep encryption will use software
1843 * way, but there is no chance to set this as wep will not set
1844 * group key in wext.
1845 */
1846 if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
1847 KEY_TYPE_WEP104 == ieee->pairwise_key_type)
1848 EnableHWSecurityConfig8192(dev);
1849 }
1850 /*update timing params*/
1851 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1852 u32 reg = 0;
1853
1854 read_nic_dword(dev, RCR, ®);
1855 if (priv->ieee80211->state == IEEE80211_LINKED)
1856 priv->ReceiveConfig = reg |= RCR_CBSSID;
1857 else
1858 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1859 write_nic_dword(dev, RCR, reg);
1860 }
1861 }
1862
1863 static struct ieee80211_qos_parameters def_qos_parameters = {
1864 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1865 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1866 {2, 2, 2, 2},/* aifs */
1867 {0, 0, 0, 0},/* flags */
1868 {0, 0, 0, 0} /* tx_op_limit */
1869 };
1870
1871
rtl8192_update_beacon(struct work_struct * work)1872 static void rtl8192_update_beacon(struct work_struct *work)
1873 {
1874 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1875 update_beacon_wq.work);
1876 struct net_device *dev = priv->ieee80211->dev;
1877 struct ieee80211_device *ieee = priv->ieee80211;
1878 struct ieee80211_network *net = &ieee->current_network;
1879
1880 if (ieee->pHTInfo->bCurrentHTSupport)
1881 HTUpdateSelfAndPeerSetting(ieee, net);
1882 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1883 net->bssht.bdRT2RTLongSlotTime;
1884 rtl8192_update_cap(dev, net->capability);
1885 }
1886 /*
1887 * background support to run QoS activate functionality
1888 */
1889 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1890 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1891 static void rtl8192_qos_activate(struct work_struct *work)
1892 {
1893 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1894 qos_activate);
1895 struct net_device *dev = priv->ieee80211->dev;
1896 struct ieee80211_qos_parameters *qos_parameters =
1897 &priv->ieee80211->current_network.qos_data.parameters;
1898 u8 mode = priv->ieee80211->current_network.mode;
1899 u32 u1bAIFS;
1900 u32 u4bAcParam;
1901 u32 op_limit;
1902 u32 cw_max;
1903 u32 cw_min;
1904 int i;
1905
1906 mutex_lock(&priv->mutex);
1907 if (priv->ieee80211->state != IEEE80211_LINKED)
1908 goto success;
1909 RT_TRACE(COMP_QOS,
1910 "qos active process with associate response received\n");
1911 /* It better set slot time at first
1912 *
1913 * For we just support b/g mode at present, let the slot time at
1914 * 9/20 selection
1915 *
1916 * update the ac parameter to related registers
1917 */
1918 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1919 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1920 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1921 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1922 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1923 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1924 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1925 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1926 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1927 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1928 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1929 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1930 }
1931
1932 success:
1933 mutex_unlock(&priv->mutex);
1934 }
1935
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1936 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1937 int active_network,
1938 struct ieee80211_network *network)
1939 {
1940 int ret = 0;
1941 u32 size = sizeof(struct ieee80211_qos_parameters);
1942
1943 if (priv->ieee80211->state != IEEE80211_LINKED)
1944 return ret;
1945
1946 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1947 return ret;
1948
1949 if (network->flags & NETWORK_HAS_QOS_MASK) {
1950 if (active_network &&
1951 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1952 network->qos_data.active = network->qos_data.supported;
1953
1954 if ((network->qos_data.active == 1) && (active_network == 1) &&
1955 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1956 (network->qos_data.old_param_count !=
1957 network->qos_data.param_count)) {
1958 network->qos_data.old_param_count =
1959 network->qos_data.param_count;
1960 queue_work(priv->priv_wq, &priv->qos_activate);
1961 RT_TRACE(COMP_QOS,
1962 "QoS parameters change call qos_activate\n");
1963 }
1964 } else {
1965 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1966 &def_qos_parameters, size);
1967
1968 if ((network->qos_data.active == 1) && (active_network == 1)) {
1969 queue_work(priv->priv_wq, &priv->qos_activate);
1970 RT_TRACE(COMP_QOS,
1971 "QoS was disabled call qos_activate\n");
1972 }
1973 network->qos_data.active = 0;
1974 network->qos_data.supported = 0;
1975 }
1976
1977 return 0;
1978 }
1979
1980 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1981 static int rtl8192_handle_beacon(struct net_device *dev,
1982 struct ieee80211_beacon *beacon,
1983 struct ieee80211_network *network)
1984 {
1985 struct r8192_priv *priv = ieee80211_priv(dev);
1986
1987 rtl8192_qos_handle_probe_response(priv, 1, network);
1988 queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
1989 return 0;
1990
1991 }
1992
1993 /*
1994 * handling the beaconing responses. if we get different QoS setting
1995 * off the network from the associated setting, adjust the QoS
1996 * setting
1997 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1998 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1999 struct ieee80211_network *network)
2000 {
2001 unsigned long flags;
2002 u32 size = sizeof(struct ieee80211_qos_parameters);
2003 int set_qos_param = 0;
2004
2005 if ((priv == NULL) || (network == NULL))
2006 return 0;
2007
2008 if (priv->ieee80211->state != IEEE80211_LINKED)
2009 return 0;
2010
2011 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
2012 return 0;
2013
2014 spin_lock_irqsave(&priv->ieee80211->lock, flags);
2015 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
2016 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
2017 &network->qos_data.parameters,
2018 sizeof(struct ieee80211_qos_parameters));
2019 priv->ieee80211->current_network.qos_data.active = 1;
2020 set_qos_param = 1;
2021 /* update qos parameter for current network */
2022 priv->ieee80211->current_network.qos_data.old_param_count =
2023 priv->ieee80211->current_network.qos_data.param_count;
2024 priv->ieee80211->current_network.qos_data.param_count =
2025 network->qos_data.param_count;
2026 } else {
2027 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
2028 &def_qos_parameters, size);
2029 priv->ieee80211->current_network.qos_data.active = 0;
2030 priv->ieee80211->current_network.qos_data.supported = 0;
2031 set_qos_param = 1;
2032 }
2033
2034 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
2035
2036 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
2037 network->flags,
2038 priv->ieee80211->current_network.qos_data.active);
2039 if (set_qos_param == 1)
2040 queue_work(priv->priv_wq, &priv->qos_activate);
2041
2042
2043 return 0;
2044 }
2045
2046
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)2047 static int rtl8192_handle_assoc_response(
2048 struct net_device *dev,
2049 struct ieee80211_assoc_response_frame *resp,
2050 struct ieee80211_network *network)
2051 {
2052 struct r8192_priv *priv = ieee80211_priv(dev);
2053
2054 rtl8192_qos_association_resp(priv, network);
2055 return 0;
2056 }
2057
2058
rtl8192_update_ratr_table(struct net_device * dev)2059 static void rtl8192_update_ratr_table(struct net_device *dev)
2060 {
2061 struct r8192_priv *priv = ieee80211_priv(dev);
2062 struct ieee80211_device *ieee = priv->ieee80211;
2063 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2064 u32 ratr_value = 0;
2065 u8 rate_index = 0;
2066
2067 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2068 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2069 switch (ieee->mode) {
2070 case IEEE_A:
2071 ratr_value &= 0x00000FF0;
2072 break;
2073 case IEEE_B:
2074 ratr_value &= 0x0000000F;
2075 break;
2076 case IEEE_G:
2077 ratr_value &= 0x00000FF7;
2078 break;
2079 case IEEE_N_24G:
2080 case IEEE_N_5G:
2081 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2082 ratr_value &= 0x0007F007;
2083 } else {
2084 if (priv->rf_type == RF_1T2R)
2085 ratr_value &= 0x000FF007;
2086 else
2087 ratr_value &= 0x0F81F007;
2088 }
2089 break;
2090 default:
2091 break;
2092 }
2093 ratr_value &= 0x0FFFFFFF;
2094 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2095 ratr_value |= 0x80000000;
2096 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2097 ieee->pHTInfo->bCurShortGI20MHz)
2098 ratr_value |= 0x80000000;
2099 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2100 write_nic_byte(dev, UFWP, 1);
2101 }
2102
2103 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2104 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)2105 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2106 {
2107 struct r8192_priv *priv = ieee80211_priv(dev);
2108 struct ieee80211_device *ieee = priv->ieee80211;
2109 struct ieee80211_network *network = &ieee->current_network;
2110 int wpa_ie_len = ieee->wpa_ie_len;
2111 struct ieee80211_crypt_data *crypt;
2112 int encrypt;
2113
2114 crypt = ieee->crypt[ieee->tx_keyidx];
2115 /* we use connecting AP's capability instead of only security config
2116 * on our driver to distinguish whether it should use N mode or G mode
2117 */
2118 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2119 (ieee->host_encrypt && crypt && crypt->ops &&
2120 (0 == strcmp(crypt->ops->name, "WEP")));
2121
2122 /* simply judge */
2123 if (encrypt && (wpa_ie_len == 0)) {
2124 /* wep encryption, no N mode setting */
2125 return false;
2126 } else if ((wpa_ie_len != 0)) {
2127 /* parse pairwise key type */
2128 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))))
2129 return true;
2130 else
2131 return false;
2132 } else {
2133 return true;
2134 }
2135
2136 return true;
2137 }
2138
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)2139 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2140 {
2141 struct r8192_priv *priv = ieee80211_priv(dev);
2142
2143 return priv->ieee80211->bHalfWirelessN24GMode;
2144 }
2145
rtl8192_refresh_supportrate(struct r8192_priv * priv)2146 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2147 {
2148 struct ieee80211_device *ieee = priv->ieee80211;
2149 /* We do not consider set support rate for ABG mode, only
2150 * HT MCS rate is set here.
2151 */
2152 if (ieee->mode == WIRELESS_MODE_N_24G ||
2153 ieee->mode == WIRELESS_MODE_N_5G)
2154 memcpy(ieee->Regdot11HTOperationalRateSet,
2155 ieee->RegHTSuppRateSet, 16);
2156 else
2157 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2158 }
2159
rtl8192_getSupportedWireleeMode(struct net_device * dev)2160 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2161 {
2162 struct r8192_priv *priv = ieee80211_priv(dev);
2163 u8 ret = 0;
2164
2165 switch (priv->rf_chip) {
2166 case RF_8225:
2167 case RF_8256:
2168 case RF_PSEUDO_11N:
2169 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2170 break;
2171 case RF_8258:
2172 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2173 break;
2174 default:
2175 ret = WIRELESS_MODE_B;
2176 break;
2177 }
2178 return ret;
2179 }
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2180 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2181 {
2182 struct r8192_priv *priv = ieee80211_priv(dev);
2183 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2184
2185 if (wireless_mode == WIRELESS_MODE_AUTO ||
2186 (wireless_mode & bSupportMode) == 0) {
2187 if (bSupportMode & WIRELESS_MODE_N_24G) {
2188 wireless_mode = WIRELESS_MODE_N_24G;
2189 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2190 wireless_mode = WIRELESS_MODE_N_5G;
2191 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2192 wireless_mode = WIRELESS_MODE_A;
2193 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2194 wireless_mode = WIRELESS_MODE_G;
2195 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2196 wireless_mode = WIRELESS_MODE_B;
2197 } else {
2198 RT_TRACE(COMP_ERR,
2199 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2200 __func__, bSupportMode);
2201 wireless_mode = WIRELESS_MODE_B;
2202 }
2203 }
2204 #ifdef TO_DO_LIST
2205 /* TODO: this function doesn't work well at this time,
2206 * we should wait for FPGA
2207 */
2208 ActUpdateChannelAccessSetting(
2209 pAdapter, pHalData->CurrentWirelessMode,
2210 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2211 #endif
2212 priv->ieee80211->mode = wireless_mode;
2213
2214 if (wireless_mode == WIRELESS_MODE_N_24G ||
2215 wireless_mode == WIRELESS_MODE_N_5G)
2216 priv->ieee80211->pHTInfo->bEnableHT = 1;
2217 else
2218 priv->ieee80211->pHTInfo->bEnableHT = 0;
2219 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2220 rtl8192_refresh_supportrate(priv);
2221
2222 }
2223 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2224 static void rtl8192_init_priv_variable(struct net_device *dev)
2225 {
2226 struct r8192_priv *priv = ieee80211_priv(dev);
2227 u8 i;
2228
2229 priv->card_8192 = NIC_8192U;
2230 priv->chan = 1; /* set to channel 1 */
2231 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2232 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2233 priv->ieee80211->ieee_up = 0;
2234 priv->retry_rts = DEFAULT_RETRY_RTS;
2235 priv->retry_data = DEFAULT_RETRY_DATA;
2236 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2237 priv->ieee80211->rate = 110; /* 11 mbps */
2238 priv->ieee80211->short_slot = 1;
2239 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2240 priv->CckPwEnl = 6;
2241 /* for silent reset */
2242 priv->IrpPendingCount = 1;
2243 priv->ResetProgress = RESET_TYPE_NORESET;
2244 priv->bForcedSilentReset = false;
2245 priv->bDisableNormalResetCheck = false;
2246 priv->force_reset = false;
2247
2248 /* we don't use FW read/write RF until stable firmware is available. */
2249 priv->ieee80211->FwRWRF = 0;
2250 priv->ieee80211->current_network.beacon_interval =
2251 DEFAULT_BEACONINTERVAL;
2252 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2253 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2254 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2255 IEEE_SOFTMAC_BEACONS;
2256
2257 priv->ieee80211->active_scan = 1;
2258 priv->ieee80211->modulation =
2259 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2260 priv->ieee80211->host_encrypt = 1;
2261 priv->ieee80211->host_decrypt = 1;
2262 priv->ieee80211->start_send_beacons = NULL;
2263 priv->ieee80211->stop_send_beacons = NULL;
2264 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2265 priv->ieee80211->set_chan = rtl8192_set_chan;
2266 priv->ieee80211->link_change = rtl8192_link_change;
2267 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2268 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2269 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2270 priv->ieee80211->init_wmmparam_flag = 0;
2271 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2272 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2273 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2274 priv->ieee80211->qos_support = 1;
2275
2276 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2277 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2278 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2279
2280 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2281 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2282 GetHalfNmodeSupportByAPs819xUsb;
2283 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2284
2285 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2286 priv->card_type = USB;
2287 #ifdef TO_DO_LIST
2288 if (Adapter->bInHctTest) {
2289 pHalData->ShortRetryLimit = 7;
2290 pHalData->LongRetryLimit = 7;
2291 }
2292 #endif
2293 priv->ShortRetryLimit = 0x30;
2294 priv->LongRetryLimit = 0x30;
2295 priv->EarlyRxThreshold = 7;
2296 priv->enable_gpio0 = 0;
2297 priv->TransmitConfig =
2298 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2299 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2300 /* Short retry limit */
2301 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2302 /* Long retry limit */
2303 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2304 /* FALSE: HW provides PLCP length and LENGEXT
2305 * TRUE: SW provides them
2306 */
2307 (false ? TCR_SAT : 0);
2308 #ifdef TO_DO_LIST
2309 if (Adapter->bInHctTest)
2310 pHalData->ReceiveConfig =
2311 pHalData->CSMethod |
2312 /* accept management/data */
2313 RCR_AMF | RCR_ADF |
2314 /* accept control frame for SW
2315 * AP needs PS-poll
2316 */
2317 RCR_ACF |
2318 /* accept BC/MC/UC */
2319 RCR_AB | RCR_AM | RCR_APM |
2320 /* accept ICV/CRC error
2321 * packet
2322 */
2323 RCR_AICV | RCR_ACRC32 |
2324 /* Max DMA Burst Size per Tx
2325 * DMA Burst, 7: unlimited.
2326 */
2327 ((u32)7 << RCR_MXDMA_OFFSET) |
2328 /* Rx FIFO Threshold,
2329 * 7: No Rx threshold.
2330 */
2331 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2332 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2333 else
2334
2335 #endif
2336 priv->ReceiveConfig =
2337 /* accept management/data */
2338 RCR_AMF | RCR_ADF |
2339 /* accept control frame for SW AP needs PS-poll */
2340 RCR_ACF |
2341 /* accept BC/MC/UC */
2342 RCR_AB | RCR_AM | RCR_APM |
2343 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2344 ((u32)7 << RCR_MXDMA_OFFSET) |
2345 /* Rx FIFO Threshold, 7: No Rx threshold. */
2346 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2347 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2348
2349 priv->AcmControl = 0;
2350 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2351
2352 /* rx related queue */
2353 skb_queue_head_init(&priv->rx_queue);
2354 skb_queue_head_init(&priv->skb_queue);
2355
2356 /* Tx related queue */
2357 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2358 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2359 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2360 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2361 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2362 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2363 priv->rf_set_chan = rtl8192_phy_SwChnl;
2364 }
2365
2366 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2367 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2368 {
2369 spin_lock_init(&priv->tx_lock);
2370 spin_lock_init(&priv->irq_lock);
2371 sema_init(&priv->wx_sem, 1);
2372 sema_init(&priv->rf_sem, 1);
2373 mutex_init(&priv->mutex);
2374 }
2375
2376 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2377
2378 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2379 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2380 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2381 static void rtl8192_init_priv_task(struct net_device *dev)
2382 {
2383 struct r8192_priv *priv = ieee80211_priv(dev);
2384
2385 priv->priv_wq = create_workqueue(DRV_NAME);
2386
2387 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2388
2389 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2390 rtl819x_watchdog_wqcallback);
2391 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2392 dm_txpower_trackingcallback);
2393 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2394 dm_rf_pathcheck_workitemcallback);
2395 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2396 rtl8192_update_beacon);
2397 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2398 InitialGainOperateWorkItemCallBack);
2399 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2400
2401 tasklet_init(&priv->irq_rx_tasklet,
2402 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2403 (unsigned long)priv);
2404 }
2405
rtl8192_get_eeprom_size(struct net_device * dev)2406 static void rtl8192_get_eeprom_size(struct net_device *dev)
2407 {
2408 u16 curCR = 0;
2409 struct r8192_priv *priv = ieee80211_priv(dev);
2410
2411 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2412 read_nic_word_E(dev, EPROM_CMD, &curCR);
2413 RT_TRACE(COMP_EPROM,
2414 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2415 /* whether need I consider BIT(5?) */
2416 priv->epromtype =
2417 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2418 RT_TRACE(COMP_EPROM,
2419 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2420 }
2421
2422 /* used to swap endian. as ntohl & htonl are not necessary
2423 * to swap endian, so use this instead.
2424 */
endian_swap(u16 * data)2425 static inline u16 endian_swap(u16 *data)
2426 {
2427 u16 tmp = *data;
2428 *data = (tmp >> 8) | (tmp << 8);
2429 return *data;
2430 }
rtl8192_read_eeprom_info(struct net_device * dev)2431 static void rtl8192_read_eeprom_info(struct net_device *dev)
2432 {
2433 u16 wEPROM_ID = 0;
2434 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2435 u8 bLoad_From_EEPOM = false;
2436 struct r8192_priv *priv = ieee80211_priv(dev);
2437 u16 tmpValue = 0;
2438 int i;
2439
2440 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2441 wEPROM_ID = eprom_read(dev, 0); /* first read EEPROM ID out; */
2442 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2443
2444 if (wEPROM_ID != RTL8190_EEPROM_ID)
2445 RT_TRACE(COMP_ERR,
2446 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2447 wEPROM_ID, RTL8190_EEPROM_ID);
2448 else
2449 bLoad_From_EEPOM = true;
2450
2451 if (bLoad_From_EEPOM) {
2452 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2453 priv->eeprom_vid = endian_swap(&tmpValue);
2454 priv->eeprom_pid = eprom_read(dev, EEPROM_PID >> 1);
2455 tmpValue = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2456 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2457 priv->btxpowerdata_readfromEEPORM = true;
2458 priv->eeprom_CustomerID =
2459 eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2460 } else {
2461 priv->eeprom_vid = 0;
2462 priv->eeprom_pid = 0;
2463 priv->card_8192_version = VERSION_819xU_B;
2464 priv->eeprom_ChannelPlan = 0;
2465 priv->eeprom_CustomerID = 0;
2466 }
2467 RT_TRACE(COMP_EPROM,
2468 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2469 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2470 priv->eeprom_ChannelPlan);
2471 /* set channelplan from eeprom */
2472 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2473 if (bLoad_From_EEPOM) {
2474 int i;
2475
2476 for (i = 0; i < 6; i += 2) {
2477 u16 tmp = 0;
2478
2479 tmp = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2480 *(u16 *)(&dev->dev_addr[i]) = tmp;
2481 }
2482 } else {
2483 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2484 /* should I set IDR0 here? */
2485 }
2486 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2487 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2488 priv->rf_chip = RF_8256;
2489
2490 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2491 /* read Tx power gain offset of legacy OFDM to HT rate */
2492 if (bLoad_From_EEPOM)
2493 priv->EEPROMTxPowerDiff = (eprom_read(dev, (EEPROM_TxPowerDiff >> 1)) & 0xff00) >> 8;
2494 else
2495 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2496 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2497 /* read ThermalMeter from EEPROM */
2498 if (bLoad_From_EEPOM)
2499 priv->EEPROMThermalMeter = (u8)(eprom_read(dev, (EEPROM_ThermalMeter >> 1)) & 0x00ff);
2500 else
2501 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2502 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2503 /* for tx power track */
2504 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2505 /* read antenna tx power offset of B/C/D to A from EEPROM */
2506 if (bLoad_From_EEPOM)
2507 priv->EEPROMPwDiff = (eprom_read(dev, (EEPROM_PwDiff >> 1)) & 0x0f00) >> 8;
2508 else
2509 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2510 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2511 /* Read CrystalCap from EEPROM */
2512 if (bLoad_From_EEPOM)
2513 priv->EEPROMCrystalCap = (eprom_read(dev, (EEPROM_CrystalCap >> 1)) & 0x0f);
2514 else
2515 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2516 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2517 /* get per-channel Tx power level */
2518 if (bLoad_From_EEPOM)
2519 priv->EEPROM_Def_Ver = (eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1)) & 0xff00) >> 8;
2520 else
2521 priv->EEPROM_Def_Ver = 1;
2522 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2523 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2524 int i;
2525
2526 if (bLoad_From_EEPOM)
2527 priv->EEPROMTxPowerLevelCCK = (eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1)) & 0xff) >> 8;
2528 else
2529 priv->EEPROMTxPowerLevelCCK = 0x10;
2530 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2531 for (i = 0; i < 3; i++) {
2532 if (bLoad_From_EEPOM) {
2533 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2534 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2535 tmpValue = tmpValue & 0x00ff;
2536 else
2537 tmpValue = (tmpValue & 0xff00) >> 8;
2538 } else {
2539 tmpValue = 0x10;
2540 }
2541 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2542 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2543 }
2544 } else if (priv->EEPROM_Def_Ver == 1) {
2545 if (bLoad_From_EEPOM) {
2546 tmpValue = eprom_read(dev,
2547 EEPROM_TxPwIndex_CCK_V1 >> 1);
2548 tmpValue = (tmpValue & 0xff00) >> 8;
2549 } else {
2550 tmpValue = 0x10;
2551 }
2552 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2553
2554 if (bLoad_From_EEPOM)
2555 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2556 else
2557 tmpValue = 0x1010;
2558 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2559 if (bLoad_From_EEPOM)
2560 tmpValue = eprom_read(dev,
2561 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2562 else
2563 tmpValue = 0x1010;
2564 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2565 if (bLoad_From_EEPOM)
2566 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2567 else
2568 tmpValue = 0x10;
2569 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2570 } /* endif EEPROM_Def_Ver == 1 */
2571
2572 /* update HAL variables */
2573 for (i = 0; i < 14; i++) {
2574 if (i <= 3)
2575 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2576 else if (i >= 4 && i <= 9)
2577 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2578 else
2579 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2580 }
2581
2582 for (i = 0; i < 14; i++) {
2583 if (priv->EEPROM_Def_Ver == 0) {
2584 if (i <= 3)
2585 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2586 else if (i >= 4 && i <= 9)
2587 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2588 else
2589 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2590 } else if (priv->EEPROM_Def_Ver == 1) {
2591 if (i <= 3)
2592 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2593 else if (i >= 4 && i <= 9)
2594 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2595 else
2596 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2597 }
2598 }
2599 priv->TxPowerDiff = priv->EEPROMPwDiff;
2600 /* Antenna B gain offset to antenna A, bit0~3 */
2601 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2602 /* Antenna C gain offset to antenna A, bit4~7 */
2603 priv->AntennaTxPwDiff[1] =
2604 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2605 /* CrystalCap, bit12~15 */
2606 priv->CrystalCap = priv->EEPROMCrystalCap;
2607 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2608 * 92U does not enable TX power tracking.
2609 */
2610 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2611 } /* end if VersionID == VERSION_819xU_A */
2612
2613 /* for dlink led */
2614 switch (priv->eeprom_CustomerID) {
2615 case EEPROM_CID_RUNTOP:
2616 priv->CustomerID = RT_CID_819x_RUNTOP;
2617 break;
2618
2619 case EEPROM_CID_DLINK:
2620 priv->CustomerID = RT_CID_DLINK;
2621 break;
2622
2623 default:
2624 priv->CustomerID = RT_CID_DEFAULT;
2625 break;
2626
2627 }
2628
2629 switch (priv->CustomerID) {
2630 case RT_CID_819x_RUNTOP:
2631 priv->LedStrategy = SW_LED_MODE2;
2632 break;
2633
2634 case RT_CID_DLINK:
2635 priv->LedStrategy = SW_LED_MODE4;
2636 break;
2637
2638 default:
2639 priv->LedStrategy = SW_LED_MODE0;
2640 break;
2641
2642 }
2643
2644
2645 if (priv->rf_type == RF_1T2R)
2646 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2647 else
2648 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2649
2650 /* We can only know RF type in the function. So we have to init
2651 * DIG RATR table again.
2652 */
2653 init_rate_adaptive(dev);
2654
2655 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2656 }
2657
rtl8192_get_channel_map(struct net_device * dev)2658 static short rtl8192_get_channel_map(struct net_device *dev)
2659 {
2660 struct r8192_priv *priv = ieee80211_priv(dev);
2661
2662 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2663 netdev_err(dev,
2664 "rtl8180_init: Error channel plan! Set to default.\n");
2665 priv->ChannelPlan = 0;
2666 }
2667 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2668
2669 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2670 return 0;
2671 }
2672
rtl8192_init(struct net_device * dev)2673 static short rtl8192_init(struct net_device *dev)
2674 {
2675
2676 struct r8192_priv *priv = ieee80211_priv(dev);
2677
2678 memset(&(priv->stats), 0, sizeof(struct Stats));
2679 memset(priv->txqueue_to_outpipemap, 0, 9);
2680 #ifdef PIPE12
2681 {
2682 int i = 0;
2683 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2684
2685 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2686 }
2687 #else
2688 {
2689 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2690
2691 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2692 }
2693 #endif
2694 rtl8192_init_priv_variable(dev);
2695 rtl8192_init_priv_lock(priv);
2696 rtl8192_init_priv_task(dev);
2697 rtl8192_get_eeprom_size(dev);
2698 rtl8192_read_eeprom_info(dev);
2699 rtl8192_get_channel_map(dev);
2700 init_hal_dm(dev);
2701 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2702 (unsigned long)dev);
2703 if (rtl8192_usb_initendpoints(dev) != 0) {
2704 DMESG("Endopoints initialization failed");
2705 return -ENOMEM;
2706 }
2707
2708 return 0;
2709 }
2710
2711 /******************************************************************************
2712 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2713 * not to do all the hw config as its name says
2714 * input: net_device dev
2715 * output: none
2716 * return: none
2717 * notice: This part need to modified according to the rate set we filtered
2718 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2719 static void rtl8192_hwconfig(struct net_device *dev)
2720 {
2721 u32 regRATR = 0, regRRSR = 0;
2722 u8 regBwOpMode = 0, regTmp = 0;
2723 struct r8192_priv *priv = ieee80211_priv(dev);
2724 u32 ratr_value = 0;
2725
2726 /* Set RRSR, RATR, and BW_OPMODE registers */
2727 switch (priv->ieee80211->mode) {
2728 case WIRELESS_MODE_B:
2729 regBwOpMode = BW_OPMODE_20MHZ;
2730 regRATR = RATE_ALL_CCK;
2731 regRRSR = RATE_ALL_CCK;
2732 break;
2733 case WIRELESS_MODE_A:
2734 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2735 regRATR = RATE_ALL_OFDM_AG;
2736 regRRSR = RATE_ALL_OFDM_AG;
2737 break;
2738 case WIRELESS_MODE_G:
2739 regBwOpMode = BW_OPMODE_20MHZ;
2740 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2741 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2742 break;
2743 case WIRELESS_MODE_AUTO:
2744 #ifdef TO_DO_LIST
2745 if (Adapter->bInHctTest) {
2746 regBwOpMode = BW_OPMODE_20MHZ;
2747 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2748 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2749 } else
2750 #endif
2751 {
2752 regBwOpMode = BW_OPMODE_20MHZ;
2753 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2754 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2755 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2756 }
2757 break;
2758 case WIRELESS_MODE_N_24G:
2759 /* It support CCK rate by default. CCK rate will be filtered
2760 * out only when associated AP does not support it.
2761 */
2762 regBwOpMode = BW_OPMODE_20MHZ;
2763 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2764 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2765 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2766 break;
2767 case WIRELESS_MODE_N_5G:
2768 regBwOpMode = BW_OPMODE_5G;
2769 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2770 RATE_ALL_OFDM_2SS;
2771 regRRSR = RATE_ALL_OFDM_AG;
2772 break;
2773 }
2774
2775 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2776 ratr_value = regRATR;
2777 if (priv->rf_type == RF_1T2R)
2778 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2779 write_nic_dword(dev, RATR0, ratr_value);
2780 write_nic_byte(dev, UFWP, 1);
2781 read_nic_byte(dev, 0x313, ®Tmp);
2782 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2783 write_nic_dword(dev, RRSR, regRRSR);
2784
2785 /* Set Retry Limit here */
2786 write_nic_word(dev, RETRY_LIMIT,
2787 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2788 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2789 /* Set Contention Window here */
2790
2791 /* Set Tx AGC */
2792
2793 /* Set Tx Antenna including Feedback control */
2794
2795 /* Set Auto Rate fallback control */
2796
2797
2798 }
2799
2800
2801 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2802 static bool rtl8192_adapter_start(struct net_device *dev)
2803 {
2804 struct r8192_priv *priv = ieee80211_priv(dev);
2805 u32 dwRegRead = 0;
2806 bool init_status = true;
2807 u8 SECR_value = 0x0;
2808 u8 tmp;
2809
2810 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2811 priv->Rf_Mode = RF_OP_By_SW_3wire;
2812 /* for ASIC power on sequence */
2813 write_nic_byte_E(dev, 0x5f, 0x80);
2814 mdelay(50);
2815 write_nic_byte_E(dev, 0x5f, 0xf0);
2816 write_nic_byte_E(dev, 0x5d, 0x00);
2817 write_nic_byte_E(dev, 0x5e, 0x80);
2818 write_nic_byte(dev, 0x17, 0x37);
2819 mdelay(10);
2820 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2821 /* config CPUReset Register */
2822 /* Firmware Reset or not? */
2823 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2824 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2825 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2826 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2827 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2828 else
2829 RT_TRACE(COMP_ERR,
2830 "ERROR in %s(): undefined firmware state(%d)\n",
2831 __func__, priv->pFirmware->firmware_status);
2832
2833 write_nic_dword(dev, CPU_GEN, dwRegRead);
2834 /* config BB. */
2835 rtl8192_BBConfig(dev);
2836
2837 /* Loopback mode or not */
2838 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2839
2840 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2841 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2842 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2843 CPU_GEN_NO_LOOPBACK_SET;
2844 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2845 dwRegRead |= CPU_CCK_LOOPBACK;
2846 else
2847 RT_TRACE(COMP_ERR,
2848 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2849 __func__, priv->LoopbackMode);
2850
2851 write_nic_dword(dev, CPU_GEN, dwRegRead);
2852
2853 /* after reset cpu, we need wait for a seconds to write in register. */
2854 udelay(500);
2855
2856 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2857 read_nic_byte_E(dev, 0x5f, &tmp);
2858 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2859
2860 /* Set Hardware */
2861 rtl8192_hwconfig(dev);
2862
2863 /* turn on Tx/Rx */
2864 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2865
2866 /* set IDR0 here */
2867 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2868 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2869
2870 /* set RCR */
2871 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2872
2873 /* Initialize Number of Reserved Pages in Firmware Queue */
2874 write_nic_dword(dev, RQPN1,
2875 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2876 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2877 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2878 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2879 write_nic_dword(dev, RQPN2,
2880 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2881 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2882 write_nic_dword(dev, RQPN3,
2883 APPLIED_RESERVED_QUEUE_IN_FW |
2884 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2885 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2886
2887 /* Set AckTimeout */
2888 /* TODO: (it value is only for FPGA version). need to be changed!! */
2889 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2890
2891 if (priv->ResetProgress == RESET_TYPE_NORESET)
2892 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2893 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2894 CamResetAllEntry(dev);
2895 SECR_value |= SCR_TxEncEnable;
2896 SECR_value |= SCR_RxDecEnable;
2897 SECR_value |= SCR_NoSKMC;
2898 write_nic_byte(dev, SECR, SECR_value);
2899 }
2900
2901 /* Beacon related */
2902 write_nic_word(dev, ATIMWND, 2);
2903 write_nic_word(dev, BCN_INTERVAL, 100);
2904
2905 #define DEFAULT_EDCA 0x005e4332
2906 {
2907 int i;
2908
2909 for (i = 0; i < QOS_QUEUE_NUM; i++)
2910 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2911 }
2912
2913 rtl8192_phy_configmac(dev);
2914
2915 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2916 rtl8192_phy_getTxPower(dev);
2917 rtl8192_phy_setTxPower(dev, priv->chan);
2918 }
2919
2920 /* Firmware download */
2921 init_status = init_firmware(dev);
2922 if (!init_status) {
2923 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2924 __func__);
2925 return init_status;
2926 }
2927 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2928
2929 #ifdef TO_DO_LIST
2930 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2931 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2932 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2933 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2934 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2935 /* Those actions will be discard in MgntActSet_RF_State
2936 * because of the same state
2937 */
2938 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2939 PHY_SetRFReg(Adapter,
2940 (RF90_RADIO_PATH_E)eRFPath,
2941 0x4, 0xC00, 0x0);
2942 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2943 /* H/W or S/W RF OFF before sleep. */
2944 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2945 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2946 pMgntInfo->RfOffReason));
2947 MgntActSet_RF_State(Adapter,
2948 eRfOff,
2949 pMgntInfo->RfOffReason);
2950 } else {
2951 pHalData->eRFPowerState = eRfOn;
2952 pMgntInfo->RfOffReason = 0;
2953 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2954 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2955 }
2956 } else {
2957 if (pHalData->eRFPowerState == eRfOff) {
2958 MgntActSet_RF_State(Adapter,
2959 eRfOff,
2960 pMgntInfo->RfOffReason);
2961 /* Those actions will be discard in MgntActSet_RF_State
2962 * because of the same state
2963 */
2964 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2965 PHY_SetRFReg(Adapter,
2966 (RF90_RADIO_PATH_E)eRFPath,
2967 0x4, 0xC00, 0x0);
2968 }
2969 }
2970 #endif
2971 /* config RF. */
2972 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2973 rtl8192_phy_RFConfig(dev);
2974 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2975 }
2976
2977
2978 if (priv->ieee80211->FwRWRF)
2979 /* We can force firmware to do RF-R/W */
2980 priv->Rf_Mode = RF_OP_By_FW;
2981 else
2982 priv->Rf_Mode = RF_OP_By_SW_3wire;
2983
2984
2985 rtl8192_phy_updateInitGain(dev);
2986 /*--set CCK and OFDM Block "ON"--*/
2987 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2988 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2989
2990 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2991 /* if D or C cut */
2992 u8 tmpvalue;
2993
2994 read_nic_byte(dev, 0x301, &tmpvalue);
2995 if (tmpvalue == 0x03) {
2996 priv->bDcut = true;
2997 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2998 } else {
2999 priv->bDcut = false;
3000 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
3001 }
3002 dm_initialize_txpower_tracking(dev);
3003
3004 if (priv->bDcut) {
3005 u32 i, TempCCk;
3006 u32 tmpRegA = rtl8192_QueryBBReg(dev,
3007 rOFDM0_XATxIQImbalance,
3008 bMaskDWord);
3009
3010 for (i = 0; i < TxBBGainTableLength; i++) {
3011 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
3012 priv->rfa_txpowertrackingindex = (u8)i;
3013 priv->rfa_txpowertrackingindex_real =
3014 (u8)i;
3015 priv->rfa_txpowertracking_default =
3016 priv->rfa_txpowertrackingindex;
3017 break;
3018 }
3019 }
3020
3021 TempCCk = rtl8192_QueryBBReg(dev,
3022 rCCK0_TxFilter1,
3023 bMaskByte2);
3024
3025 for (i = 0; i < CCKTxBBGainTableLength; i++) {
3026
3027 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
3028 priv->cck_present_attentuation_20Mdefault = (u8)i;
3029 break;
3030 }
3031 }
3032 priv->cck_present_attentuation_40Mdefault = 0;
3033 priv->cck_present_attentuation_difference = 0;
3034 priv->cck_present_attentuation =
3035 priv->cck_present_attentuation_20Mdefault;
3036
3037 }
3038 }
3039 write_nic_byte(dev, 0x87, 0x0);
3040
3041
3042 return init_status;
3043 }
3044
3045 /* this configures registers for beacon tx and enables it via
3046 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
3047 * be used to stop beacon transmission
3048 */
3049 /***************************************************************************
3050 -------------------------------NET STUFF---------------------------
3051 ***************************************************************************/
3052
rtl8192_stats(struct net_device * dev)3053 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3054 {
3055 struct r8192_priv *priv = ieee80211_priv(dev);
3056
3057 return &priv->ieee80211->stats;
3058 }
3059
HalTxCheckStuck819xUsb(struct net_device * dev)3060 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3061 {
3062 struct r8192_priv *priv = ieee80211_priv(dev);
3063 u16 RegTxCounter;
3064 bool bStuck = false;
3065
3066 read_nic_word(dev, 0x128, &RegTxCounter);
3067 RT_TRACE(COMP_RESET,
3068 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3069 RegTxCounter, priv->TxCounter);
3070 if (priv->TxCounter == RegTxCounter)
3071 bStuck = true;
3072
3073 priv->TxCounter = RegTxCounter;
3074
3075 return bStuck;
3076 }
3077
3078 /*
3079 * <Assumption: RT_TX_SPINLOCK is acquired.>
3080 * First added: 2006.11.19 by emily
3081 */
TxCheckStuck(struct net_device * dev)3082 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3083 {
3084 struct r8192_priv *priv = ieee80211_priv(dev);
3085 u8 QueueID;
3086 bool bCheckFwTxCnt = false;
3087
3088 /* Decide such threshold according to current power save mode */
3089
3090 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3091 if (QueueID == TXCMD_QUEUE)
3092 continue;
3093 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3094 continue;
3095
3096 bCheckFwTxCnt = true;
3097 }
3098 if (bCheckFwTxCnt) {
3099 if (HalTxCheckStuck819xUsb(dev)) {
3100 RT_TRACE(COMP_RESET,
3101 "TxCheckStuck(): Fw indicates no Tx condition!\n");
3102 return RESET_TYPE_SILENT;
3103 }
3104 }
3105 return RESET_TYPE_NORESET;
3106 }
3107
HalRxCheckStuck819xUsb(struct net_device * dev)3108 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3109 {
3110 u16 RegRxCounter;
3111 struct r8192_priv *priv = ieee80211_priv(dev);
3112 bool bStuck = false;
3113 static u8 rx_chk_cnt;
3114
3115 read_nic_word(dev, 0x130, &RegRxCounter);
3116 RT_TRACE(COMP_RESET,
3117 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3118 RegRxCounter, priv->RxCounter);
3119 /* If rssi is small, we should check rx for long time because of bad rx.
3120 * or maybe it will continuous silent reset every 2 seconds.
3121 */
3122 rx_chk_cnt++;
3123 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3124 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3125 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3126 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3127 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3128 if (rx_chk_cnt < 2)
3129 return bStuck;
3130
3131 rx_chk_cnt = 0;
3132 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3133 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3134 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3135 if (rx_chk_cnt < 4)
3136 return bStuck;
3137
3138 rx_chk_cnt = 0;
3139 } else {
3140 if (rx_chk_cnt < 8)
3141 return bStuck;
3142
3143 rx_chk_cnt = 0;
3144 }
3145
3146 if (priv->RxCounter == RegRxCounter)
3147 bStuck = true;
3148
3149 priv->RxCounter = RegRxCounter;
3150
3151 return bStuck;
3152 }
3153
RxCheckStuck(struct net_device * dev)3154 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3155 {
3156 struct r8192_priv *priv = ieee80211_priv(dev);
3157 bool bRxCheck = false;
3158
3159 if (priv->IrpPendingCount > 1)
3160 bRxCheck = true;
3161
3162 if (bRxCheck) {
3163 if (HalRxCheckStuck819xUsb(dev)) {
3164 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3165 return RESET_TYPE_SILENT;
3166 }
3167 }
3168 return RESET_TYPE_NORESET;
3169 }
3170
3171
3172 /**
3173 * This function is called by Checkforhang to check whether we should
3174 * ask OS to reset driver
3175 *
3176 * \param pAdapter The adapter context for this miniport
3177 *
3178 * Note:NIC with USB interface sholud not call this function because we
3179 * cannot scan descriptor to judge whether there is tx stuck.
3180 * Note: This function may be required to be rewrite for Vista OS.
3181 * <<<Assumption: Tx spinlock has been acquired >>>
3182 *
3183 * 8185 and 8185b does not implement this function.
3184 */
rtl819x_ifcheck_resetornot(struct net_device * dev)3185 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3186 {
3187 struct r8192_priv *priv = ieee80211_priv(dev);
3188 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3189 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3190 RT_RF_POWER_STATE rfState;
3191
3192 rfState = priv->ieee80211->eRFPowerState;
3193
3194 TxResetType = TxCheckStuck(dev);
3195 if (rfState != eRfOff ||
3196 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3197 /* If driver is in the status of firmware download failure,
3198 * driver skips RF initialization and RF is in turned off
3199 * state. Driver should check whether Rx stuck and do silent
3200 * reset. And if driver is in firmware download failure status,
3201 * driver should initialize RF in the following silent reset
3202 * procedure
3203 *
3204 * Driver should not check RX stuck in IBSS mode because it is
3205 * required to set Check BSSID in order to send beacon,
3206 * however, if check BSSID is set, STA cannot hear any packet
3207 * at all.
3208 */
3209 RxResetType = RxCheckStuck(dev);
3210 }
3211 if (TxResetType == RESET_TYPE_NORMAL ||
3212 RxResetType == RESET_TYPE_NORMAL) {
3213 return RESET_TYPE_NORMAL;
3214 } else if (TxResetType == RESET_TYPE_SILENT ||
3215 RxResetType == RESET_TYPE_SILENT) {
3216 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3217 return RESET_TYPE_SILENT;
3218 } else {
3219 return RESET_TYPE_NORESET;
3220 }
3221
3222 }
3223
3224 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3225 static int _rtl8192_up(struct net_device *dev);
3226 static int rtl8192_close(struct net_device *dev);
3227
3228
3229
CamRestoreAllEntry(struct net_device * dev)3230 static void CamRestoreAllEntry(struct net_device *dev)
3231 {
3232 u8 EntryId = 0;
3233 struct r8192_priv *priv = ieee80211_priv(dev);
3234 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3235
3236 static u8 CAM_CONST_ADDR[4][6] = {
3237 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3238 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3239 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3240 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3241 static u8 CAM_CONST_BROAD[] = {
3242 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3243
3244 RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
3245
3246
3247 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3248 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3249
3250 for (EntryId = 0; EntryId < 4; EntryId++) {
3251 MacAddr = CAM_CONST_ADDR[EntryId];
3252 setKey(dev, EntryId, EntryId,
3253 priv->ieee80211->pairwise_key_type,
3254 MacAddr, 0, NULL);
3255 }
3256
3257 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3258
3259 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3260 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3261 (u8 *)dev->dev_addr, 0, NULL);
3262 else
3263 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3264 MacAddr, 0, NULL);
3265 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3266
3267 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3268 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3269 (u8 *)dev->dev_addr, 0, NULL);
3270 else
3271 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3272 MacAddr, 0, NULL);
3273 }
3274
3275
3276
3277 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3278 MacAddr = CAM_CONST_BROAD;
3279 for (EntryId = 1; EntryId < 4; EntryId++) {
3280 setKey(dev, EntryId, EntryId,
3281 priv->ieee80211->group_key_type,
3282 MacAddr, 0, NULL);
3283 }
3284 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3285 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3286 CAM_CONST_ADDR[0], 0, NULL);
3287 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3288 MacAddr = CAM_CONST_BROAD;
3289 for (EntryId = 1; EntryId < 4; EntryId++) {
3290 setKey(dev, EntryId, EntryId,
3291 priv->ieee80211->group_key_type,
3292 MacAddr, 0, NULL);
3293 }
3294
3295 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3296 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3297 CAM_CONST_ADDR[0], 0, NULL);
3298 }
3299 }
3300 /* This function is used to fix Tx/Rx stop bug temporarily.
3301 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3302 * The method checking Tx/Rx stuck of this function is supported by FW,
3303 * which reports Tx and Rx counter to register 0x128 and 0x130.
3304 */
rtl819x_ifsilentreset(struct net_device * dev)3305 static void rtl819x_ifsilentreset(struct net_device *dev)
3306 {
3307 struct r8192_priv *priv = ieee80211_priv(dev);
3308 u8 reset_times = 0;
3309 int reset_status = 0;
3310 struct ieee80211_device *ieee = priv->ieee80211;
3311
3312
3313 /* If we need to check CCK stop, please uncomment this line. */
3314 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3315
3316 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3317 RESET_START:
3318
3319 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3320
3321 /* Set the variable for reset. */
3322 priv->ResetProgress = RESET_TYPE_SILENT;
3323 down(&priv->wx_sem);
3324 if (priv->up == 0) {
3325 RT_TRACE(COMP_ERR,
3326 "%s():the driver is not up! return\n",
3327 __func__);
3328 up(&priv->wx_sem);
3329 return;
3330 }
3331 priv->up = 0;
3332 RT_TRACE(COMP_RESET,
3333 "%s():======>start to down the driver\n",
3334 __func__);
3335
3336 rtl8192_rtx_disable(dev);
3337 rtl8192_cancel_deferred_work(priv);
3338 deinit_hal_dm(dev);
3339 del_timer_sync(&priv->watch_dog_timer);
3340
3341 ieee->sync_scan_hurryup = 1;
3342 if (ieee->state == IEEE80211_LINKED) {
3343 down(&ieee->wx_sem);
3344 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3345 ieee80211_stop_send_beacons(priv->ieee80211);
3346 del_timer_sync(&ieee->associate_timer);
3347 cancel_delayed_work(&ieee->associate_retry_wq);
3348 ieee80211_stop_scan(ieee);
3349 netif_carrier_off(dev);
3350 up(&ieee->wx_sem);
3351 } else {
3352 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3353 ieee80211_softmac_stop_protocol(priv->ieee80211);
3354 }
3355 up(&priv->wx_sem);
3356 RT_TRACE(COMP_RESET,
3357 "%s():<==========down process is finished\n",
3358 __func__);
3359 RT_TRACE(COMP_RESET,
3360 "%s():===========>start up the driver\n",
3361 __func__);
3362 reset_status = _rtl8192_up(dev);
3363
3364 RT_TRACE(COMP_RESET,
3365 "%s():<===========up process is finished\n",
3366 __func__);
3367 if (reset_status == -EAGAIN) {
3368 if (reset_times < 3) {
3369 reset_times++;
3370 goto RESET_START;
3371 } else {
3372 RT_TRACE(COMP_ERR,
3373 " ERR!!! %s(): Reset Failed!!\n",
3374 __func__);
3375 }
3376 }
3377 ieee->is_silent_reset = 1;
3378 EnableHWSecurityConfig8192(dev);
3379 if (ieee->state == IEEE80211_LINKED &&
3380 ieee->iw_mode == IW_MODE_INFRA) {
3381 ieee->set_chan(ieee->dev,
3382 ieee->current_network.channel);
3383
3384 queue_work(ieee->wq, &ieee->associate_complete_wq);
3385
3386 } else if (ieee->state == IEEE80211_LINKED &&
3387 ieee->iw_mode == IW_MODE_ADHOC) {
3388 ieee->set_chan(ieee->dev,
3389 ieee->current_network.channel);
3390 ieee->link_change(ieee->dev);
3391
3392 ieee80211_start_send_beacons(ieee);
3393
3394 if (ieee->data_hard_resume)
3395 ieee->data_hard_resume(ieee->dev);
3396 netif_carrier_on(ieee->dev);
3397 }
3398
3399 CamRestoreAllEntry(dev);
3400
3401 priv->ResetProgress = RESET_TYPE_NORESET;
3402 priv->reset_count++;
3403
3404 priv->bForcedSilentReset = false;
3405 priv->bResetInProgress = false;
3406
3407 /* For test --> force write UFWP. */
3408 write_nic_byte(dev, UFWP, 1);
3409 RT_TRACE(COMP_RESET,
3410 "Reset finished!! ====>[%d]\n",
3411 priv->reset_count);
3412 }
3413 }
3414
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3415 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3416 u32 *TotalRxDataNum)
3417 {
3418 u16 SlotIndex;
3419 u8 i;
3420
3421 *TotalRxBcnNum = 0;
3422 *TotalRxDataNum = 0;
3423
3424 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3425 (priv->ieee80211->LinkDetectInfo.SlotNum);
3426 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3427 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3428 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3429 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3430 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3431 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3432 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3433 }
3434 }
3435
3436
rtl819x_watchdog_wqcallback(struct work_struct * work)3437 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3438 {
3439 struct delayed_work *dwork = container_of(work,
3440 struct delayed_work, work);
3441 struct r8192_priv *priv = container_of(dwork,
3442 struct r8192_priv, watch_dog_wq);
3443 struct net_device *dev = priv->ieee80211->dev;
3444 struct ieee80211_device *ieee = priv->ieee80211;
3445 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3446 static u8 check_reset_cnt;
3447 bool bBusyTraffic = false;
3448 u32 TotalRxBcnNum = 0;
3449 u32 TotalRxDataNum = 0;
3450
3451 if (!priv->up)
3452 return;
3453 hal_dm_watchdog(dev);
3454
3455 /* to get busy traffic condition */
3456 if (ieee->state == IEEE80211_LINKED) {
3457 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3458 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3459 bBusyTraffic = true;
3460 }
3461 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3462 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3463 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3464 }
3465 /* for AP roaming */
3466 if (priv->ieee80211->state == IEEE80211_LINKED &&
3467 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3468
3469 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3470 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3471 #ifdef TODO
3472 if (rfState == eRfOff)
3473 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3474 #endif
3475 netdev_dbg(dev,
3476 "===>%s(): AP is power off, connect another one\n",
3477 __func__);
3478 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3479 notify_wx_assoc_event(priv->ieee80211);
3480 RemovePeerTS(priv->ieee80211,
3481 priv->ieee80211->current_network.bssid);
3482 priv->ieee80211->link_change(dev);
3483 queue_work(priv->ieee80211->wq,
3484 &priv->ieee80211->associate_procedure_wq);
3485
3486 }
3487 }
3488 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3489 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3490 /* check if reset the driver */
3491 if (check_reset_cnt++ >= 3) {
3492 ResetType = rtl819x_ifcheck_resetornot(dev);
3493 check_reset_cnt = 3;
3494 }
3495 /* This is control by OID set in Pomelo */
3496 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3497 (priv->bForcedSilentReset ||
3498 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3499 RT_TRACE(COMP_RESET,
3500 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3501 __func__, priv->force_reset, priv->ResetProgress,
3502 priv->bForcedSilentReset,
3503 priv->bDisableNormalResetCheck, ResetType);
3504 rtl819x_ifsilentreset(dev);
3505 }
3506 priv->force_reset = false;
3507 priv->bForcedSilentReset = false;
3508 priv->bResetInProgress = false;
3509 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3510
3511 }
3512
watch_dog_timer_callback(unsigned long data)3513 static void watch_dog_timer_callback(unsigned long data)
3514 {
3515 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3516
3517 queue_delayed_work(priv->priv_wq, &priv->watch_dog_wq, 0);
3518 mod_timer(&priv->watch_dog_timer,
3519 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3520 }
_rtl8192_up(struct net_device * dev)3521 static int _rtl8192_up(struct net_device *dev)
3522 {
3523 struct r8192_priv *priv = ieee80211_priv(dev);
3524 int init_status = 0;
3525
3526 priv->up = 1;
3527 priv->ieee80211->ieee_up = 1;
3528 RT_TRACE(COMP_INIT, "Bringing up iface");
3529 init_status = rtl8192_adapter_start(dev);
3530 if (!init_status) {
3531 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3532 __func__);
3533 priv->up = priv->ieee80211->ieee_up = 0;
3534 return -EAGAIN;
3535 }
3536 RT_TRACE(COMP_INIT, "start adapter finished\n");
3537 rtl8192_rx_enable(dev);
3538 if (priv->ieee80211->state != IEEE80211_LINKED)
3539 ieee80211_softmac_start_protocol(priv->ieee80211);
3540 ieee80211_reset_queue(priv->ieee80211);
3541 watch_dog_timer_callback((unsigned long)dev);
3542 if (!netif_queue_stopped(dev))
3543 netif_start_queue(dev);
3544 else
3545 netif_wake_queue(dev);
3546
3547 return 0;
3548 }
3549
3550
rtl8192_open(struct net_device * dev)3551 static int rtl8192_open(struct net_device *dev)
3552 {
3553 struct r8192_priv *priv = ieee80211_priv(dev);
3554 int ret;
3555
3556 down(&priv->wx_sem);
3557 ret = rtl8192_up(dev);
3558 up(&priv->wx_sem);
3559 return ret;
3560
3561 }
3562
3563
rtl8192_up(struct net_device * dev)3564 int rtl8192_up(struct net_device *dev)
3565 {
3566 struct r8192_priv *priv = ieee80211_priv(dev);
3567
3568 if (priv->up == 1)
3569 return -1;
3570
3571 return _rtl8192_up(dev);
3572 }
3573
3574
rtl8192_close(struct net_device * dev)3575 static int rtl8192_close(struct net_device *dev)
3576 {
3577 struct r8192_priv *priv = ieee80211_priv(dev);
3578 int ret;
3579
3580 down(&priv->wx_sem);
3581
3582 ret = rtl8192_down(dev);
3583
3584 up(&priv->wx_sem);
3585
3586 return ret;
3587
3588 }
3589
rtl8192_down(struct net_device * dev)3590 int rtl8192_down(struct net_device *dev)
3591 {
3592 struct r8192_priv *priv = ieee80211_priv(dev);
3593 int i;
3594
3595 if (priv->up == 0)
3596 return -1;
3597
3598 priv->up = 0;
3599 priv->ieee80211->ieee_up = 0;
3600 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3601 /* FIXME */
3602 if (!netif_queue_stopped(dev))
3603 netif_stop_queue(dev);
3604
3605 rtl8192_rtx_disable(dev);
3606
3607 /* Tx related queue release */
3608 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3609 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3610 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3611 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3612
3613 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3614 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3615
3616 /* as cancel_delayed_work will del work->timer, so if work is not
3617 * defined as struct delayed_work, it will corrupt
3618 */
3619 rtl8192_cancel_deferred_work(priv);
3620 deinit_hal_dm(dev);
3621 del_timer_sync(&priv->watch_dog_timer);
3622
3623
3624 ieee80211_softmac_stop_protocol(priv->ieee80211);
3625 memset(&priv->ieee80211->current_network, 0,
3626 offsetof(struct ieee80211_network, list));
3627 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3628
3629 return 0;
3630 }
3631
3632
rtl8192_commit(struct net_device * dev)3633 void rtl8192_commit(struct net_device *dev)
3634 {
3635 struct r8192_priv *priv = ieee80211_priv(dev);
3636 int reset_status = 0;
3637
3638 if (priv->up == 0)
3639 return;
3640 priv->up = 0;
3641
3642 rtl8192_cancel_deferred_work(priv);
3643 del_timer_sync(&priv->watch_dog_timer);
3644
3645 ieee80211_softmac_stop_protocol(priv->ieee80211);
3646
3647 rtl8192_rtx_disable(dev);
3648 reset_status = _rtl8192_up(dev);
3649
3650 }
3651
rtl8192_restart(struct work_struct * work)3652 static void rtl8192_restart(struct work_struct *work)
3653 {
3654 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3655 reset_wq);
3656 struct net_device *dev = priv->ieee80211->dev;
3657
3658 down(&priv->wx_sem);
3659
3660 rtl8192_commit(dev);
3661
3662 up(&priv->wx_sem);
3663 }
3664
r8192_set_multicast(struct net_device * dev)3665 static void r8192_set_multicast(struct net_device *dev)
3666 {
3667 struct r8192_priv *priv = ieee80211_priv(dev);
3668 short promisc;
3669
3670 /* FIXME FIXME */
3671
3672 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3673
3674 if (promisc != priv->promisc)
3675
3676 priv->promisc = promisc;
3677 }
3678
3679
r8192_set_mac_adr(struct net_device * dev,void * mac)3680 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3681 {
3682 struct r8192_priv *priv = ieee80211_priv(dev);
3683 struct sockaddr *addr = mac;
3684
3685 down(&priv->wx_sem);
3686
3687 ether_addr_copy(dev->dev_addr, addr->sa_data);
3688
3689 schedule_work(&priv->reset_wq);
3690 up(&priv->wx_sem);
3691
3692 return 0;
3693 }
3694
3695 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3696 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3697 {
3698 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3699 struct iwreq *wrq = (struct iwreq *)rq;
3700 int ret = -1;
3701 struct ieee80211_device *ieee = priv->ieee80211;
3702 u32 key[4];
3703 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3704 struct iw_point *p = &wrq->u.data;
3705 struct ieee_param *ipw = NULL;
3706
3707 down(&priv->wx_sem);
3708
3709
3710 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3711 ret = -EINVAL;
3712 goto out;
3713 }
3714
3715 ipw = memdup_user(p->pointer, p->length);
3716 if (IS_ERR(ipw)) {
3717 ret = PTR_ERR(ipw);
3718 goto out;
3719 }
3720
3721 switch (cmd) {
3722 case RTL_IOCTL_WPA_SUPPLICANT:
3723 /* parse here for HW security */
3724 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3725 if (ipw->u.crypt.set_tx) {
3726 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3727 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3728 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3729 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3730 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3731 if (ipw->u.crypt.key_len == 13)
3732 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3733 else if (ipw->u.crypt.key_len == 5)
3734 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3735 } else {
3736 ieee->pairwise_key_type = KEY_TYPE_NA;
3737 }
3738
3739 if (ieee->pairwise_key_type) {
3740 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3741 EnableHWSecurityConfig8192(dev);
3742 /* We fill both index entry and 4th
3743 * entry for pairwise key as in IPW
3744 * interface, adhoc will only get here,
3745 * so we need index entry for its
3746 * default key serching!
3747 */
3748 setKey(dev, 4, ipw->u.crypt.idx,
3749 ieee->pairwise_key_type,
3750 (u8 *)ieee->ap_mac_addr,
3751 0, key);
3752 if (ieee->auth_mode != 2)
3753 setKey(dev, ipw->u.crypt.idx,
3754 ipw->u.crypt.idx,
3755 ieee->pairwise_key_type,
3756 (u8 *)ieee->ap_mac_addr,
3757 0, key);
3758 }
3759 } else {
3760 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3761 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3762 ieee->group_key_type = KEY_TYPE_CCMP;
3763 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3764 ieee->group_key_type = KEY_TYPE_TKIP;
3765 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3766 if (ipw->u.crypt.key_len == 13)
3767 ieee->group_key_type = KEY_TYPE_WEP104;
3768 else if (ipw->u.crypt.key_len == 5)
3769 ieee->group_key_type = KEY_TYPE_WEP40;
3770 } else {
3771 ieee->group_key_type = KEY_TYPE_NA;
3772 }
3773
3774 if (ieee->group_key_type) {
3775 setKey(dev, ipw->u.crypt.idx,
3776 /* KeyIndex */
3777 ipw->u.crypt.idx,
3778 /* KeyType */
3779 ieee->group_key_type,
3780 /* MacAddr */
3781 broadcast_addr,
3782 /* DefaultKey */
3783 0,
3784 /* KeyContent */
3785 key);
3786 }
3787 }
3788 }
3789 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3790 &wrq->u.data);
3791 break;
3792
3793 default:
3794 ret = -EOPNOTSUPP;
3795 break;
3796 }
3797 kfree(ipw);
3798 ipw = NULL;
3799 out:
3800 up(&priv->wx_sem);
3801 return ret;
3802 }
3803
HwRateToMRate90(bool bIsHT,u8 rate)3804 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3805 {
3806 u8 ret_rate = 0xff;
3807
3808 if (!bIsHT) {
3809 switch (rate) {
3810 case DESC90_RATE1M:
3811 ret_rate = MGN_1M;
3812 break;
3813 case DESC90_RATE2M:
3814 ret_rate = MGN_2M;
3815 break;
3816 case DESC90_RATE5_5M:
3817 ret_rate = MGN_5_5M;
3818 break;
3819 case DESC90_RATE11M:
3820 ret_rate = MGN_11M;
3821 break;
3822 case DESC90_RATE6M:
3823 ret_rate = MGN_6M;
3824 break;
3825 case DESC90_RATE9M:
3826 ret_rate = MGN_9M;
3827 break;
3828 case DESC90_RATE12M:
3829 ret_rate = MGN_12M;
3830 break;
3831 case DESC90_RATE18M:
3832 ret_rate = MGN_18M;
3833 break;
3834 case DESC90_RATE24M:
3835 ret_rate = MGN_24M;
3836 break;
3837 case DESC90_RATE36M:
3838 ret_rate = MGN_36M;
3839 break;
3840 case DESC90_RATE48M:
3841 ret_rate = MGN_48M;
3842 break;
3843 case DESC90_RATE54M:
3844 ret_rate = MGN_54M;
3845 break;
3846
3847 default:
3848 ret_rate = 0xff;
3849 RT_TRACE(COMP_RECV,
3850 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3851 rate, bIsHT);
3852 break;
3853 }
3854
3855 } else {
3856 switch (rate) {
3857 case DESC90_RATEMCS0:
3858 ret_rate = MGN_MCS0;
3859 break;
3860 case DESC90_RATEMCS1:
3861 ret_rate = MGN_MCS1;
3862 break;
3863 case DESC90_RATEMCS2:
3864 ret_rate = MGN_MCS2;
3865 break;
3866 case DESC90_RATEMCS3:
3867 ret_rate = MGN_MCS3;
3868 break;
3869 case DESC90_RATEMCS4:
3870 ret_rate = MGN_MCS4;
3871 break;
3872 case DESC90_RATEMCS5:
3873 ret_rate = MGN_MCS5;
3874 break;
3875 case DESC90_RATEMCS6:
3876 ret_rate = MGN_MCS6;
3877 break;
3878 case DESC90_RATEMCS7:
3879 ret_rate = MGN_MCS7;
3880 break;
3881 case DESC90_RATEMCS8:
3882 ret_rate = MGN_MCS8;
3883 break;
3884 case DESC90_RATEMCS9:
3885 ret_rate = MGN_MCS9;
3886 break;
3887 case DESC90_RATEMCS10:
3888 ret_rate = MGN_MCS10;
3889 break;
3890 case DESC90_RATEMCS11:
3891 ret_rate = MGN_MCS11;
3892 break;
3893 case DESC90_RATEMCS12:
3894 ret_rate = MGN_MCS12;
3895 break;
3896 case DESC90_RATEMCS13:
3897 ret_rate = MGN_MCS13;
3898 break;
3899 case DESC90_RATEMCS14:
3900 ret_rate = MGN_MCS14;
3901 break;
3902 case DESC90_RATEMCS15:
3903 ret_rate = MGN_MCS15;
3904 break;
3905 case DESC90_RATEMCS32:
3906 ret_rate = 0x80 | 0x20;
3907 break;
3908
3909 default:
3910 ret_rate = 0xff;
3911 RT_TRACE(COMP_RECV,
3912 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3913 rate, bIsHT);
3914 break;
3915 }
3916 }
3917
3918 return ret_rate;
3919 }
3920
3921 /**
3922 * Function: UpdateRxPktTimeStamp
3923 * Overview: Record the TSF time stamp when receiving a packet
3924 *
3925 * Input:
3926 * PADAPTER Adapter
3927 * PRT_RFD pRfd,
3928 *
3929 * Output:
3930 * PRT_RFD pRfd
3931 * (pRfd->Status.TimeStampHigh is updated)
3932 * (pRfd->Status.TimeStampLow is updated)
3933 * Return:
3934 * None
3935 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3936 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3937 struct ieee80211_rx_stats *stats)
3938 {
3939 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3940
3941 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3942 stats->mac_time[0] = priv->LastRxDescTSFLow;
3943 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3944 } else {
3945 priv->LastRxDescTSFLow = stats->mac_time[0];
3946 priv->LastRxDescTSFHigh = stats->mac_time[1];
3947 }
3948 }
3949
3950 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3951 static long rtl819x_translate_todbm(u8 signal_strength_index)
3952 {
3953 long signal_power; /* in dBm. */
3954
3955 /* Translate to dBm (x=0.5y-95). */
3956 signal_power = (long)((signal_strength_index + 1) >> 1);
3957 signal_power -= 95;
3958
3959 return signal_power;
3960 }
3961
3962
3963 /* We can not declare RSSI/EVM total value of sliding window to
3964 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3965 * value will be kept in memory or disk. Declare the value in the adaptor
3966 * and it will be reinitialized when returned from S3/S4.
3967 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3968 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3969 struct ieee80211_rx_stats *pprevious_stats,
3970 struct ieee80211_rx_stats *pcurrent_stats)
3971 {
3972 bool bcheck = false;
3973 u8 rfpath;
3974 u32 nspatial_stream, tmp_val;
3975 static u32 slide_rssi_index, slide_rssi_statistics;
3976 static u32 slide_evm_index, slide_evm_statistics;
3977 static u32 last_rssi, last_evm;
3978
3979 static u32 slide_beacon_adc_pwdb_index;
3980 static u32 slide_beacon_adc_pwdb_statistics;
3981 static u32 last_beacon_adc_pwdb;
3982
3983 struct rtl_80211_hdr_3addr *hdr;
3984 u16 sc;
3985 unsigned int frag, seq;
3986
3987 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3988 sc = le16_to_cpu(hdr->seq_ctl);
3989 frag = WLAN_GET_SEQ_FRAG(sc);
3990 seq = WLAN_GET_SEQ_SEQ(sc);
3991 /* to record the sequence number */
3992 pcurrent_stats->Seq_Num = seq;
3993
3994 /* Check whether we should take the previous packet into accounting */
3995 if (!pprevious_stats->bIsAMPDU) {
3996 /* if previous packet is not aggregated packet */
3997 bcheck = true;
3998 }
3999
4000 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4001 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
4002 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
4003 priv->stats.slide_rssi_total -= last_rssi;
4004 }
4005 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
4006
4007 priv->stats.slide_signal_strength[slide_rssi_index++] =
4008 pprevious_stats->SignalStrength;
4009 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
4010 slide_rssi_index = 0;
4011
4012 /* <1> Showed on UI for user, in dbm */
4013 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
4014 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
4015 pcurrent_stats->rssi = priv->stats.signal_strength;
4016
4017 /* If the previous packet does not match the criteria, neglect it */
4018 if (!pprevious_stats->bPacketMatchBSSID) {
4019 if (!pprevious_stats->bToSelfBA)
4020 return;
4021 }
4022
4023 if (!bcheck)
4024 return;
4025
4026
4027 /* only rtl8190 supported
4028 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
4029 */
4030
4031 /* Check RSSI */
4032 priv->stats.num_process_phyinfo++;
4033
4034 /* record the general signal strength to the sliding window. */
4035
4036
4037 /* <2> Showed on UI for engineering
4038 * hardware does not provide rssi information for each rf path in CCK
4039 */
4040 if (!pprevious_stats->bIsCCK &&
4041 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
4042 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
4043 if (!rtl8192_phy_CheckIsLegalRFPath(
4044 priv->ieee80211->dev, rfpath))
4045 continue;
4046
4047 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
4048 priv->stats.rx_rssi_percentage[rfpath] =
4049 pprevious_stats->RxMIMOSignalStrength[rfpath];
4050 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
4051 priv->stats.rx_rssi_percentage[rfpath] =
4052 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4053 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4054 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4055 } else {
4056 priv->stats.rx_rssi_percentage[rfpath] =
4057 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4058 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4059 }
4060 RT_TRACE(COMP_DBG,
4061 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4062 priv->stats.rx_rssi_percentage[rfpath]);
4063 }
4064 }
4065
4066
4067 /* Check PWDB. */
4068 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4069 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4070 pprevious_stats->RxPWDBAll);
4071
4072 if (pprevious_stats->bPacketBeacon) {
4073 /* record the beacon pwdb to the sliding window. */
4074 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4075 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4076 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4077 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4078 }
4079 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4080 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4081 slide_beacon_adc_pwdb_index++;
4082 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4083 slide_beacon_adc_pwdb_index = 0;
4084 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4085 if (pprevious_stats->RxPWDBAll >= 3)
4086 pprevious_stats->RxPWDBAll -= 3;
4087 }
4088
4089 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4090 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4091 pprevious_stats->RxPWDBAll);
4092
4093
4094 if (pprevious_stats->bPacketToSelf ||
4095 pprevious_stats->bPacketBeacon ||
4096 pprevious_stats->bToSelfBA) {
4097 if (priv->undecorated_smoothed_pwdb < 0)
4098 /* initialize */
4099 priv->undecorated_smoothed_pwdb =
4100 pprevious_stats->RxPWDBAll;
4101 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4102 priv->undecorated_smoothed_pwdb =
4103 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4104 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4105 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4106 } else {
4107 priv->undecorated_smoothed_pwdb =
4108 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4109 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4110 }
4111
4112 }
4113
4114 /* Check EVM */
4115 /* record the general EVM to the sliding window. */
4116 if (pprevious_stats->SignalQuality) {
4117 if (pprevious_stats->bPacketToSelf ||
4118 pprevious_stats->bPacketBeacon ||
4119 pprevious_stats->bToSelfBA) {
4120 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4121 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4122 last_evm = priv->stats.slide_evm[slide_evm_index];
4123 priv->stats.slide_evm_total -= last_evm;
4124 }
4125
4126 priv->stats.slide_evm_total +=
4127 pprevious_stats->SignalQuality;
4128
4129 priv->stats.slide_evm[slide_evm_index++] =
4130 pprevious_stats->SignalQuality;
4131 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4132 slide_evm_index = 0;
4133
4134 /* <1> Showed on UI for user, in percentage. */
4135 tmp_val = priv->stats.slide_evm_total /
4136 slide_evm_statistics;
4137 priv->stats.signal_quality = tmp_val;
4138 /* Showed on UI for user in Windows Vista,
4139 * for Link quality.
4140 */
4141 priv->stats.last_signal_strength_inpercent = tmp_val;
4142 }
4143
4144 /* <2> Showed on UI for engineering */
4145 if (pprevious_stats->bPacketToSelf ||
4146 pprevious_stats->bPacketBeacon ||
4147 pprevious_stats->bToSelfBA) {
4148 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4149 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4150 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4151 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4152 priv->stats.rx_evm_percentage[nspatial_stream] =
4153 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4154 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4155 }
4156 }
4157 }
4158 }
4159
4160
4161 }
4162
4163 /*-----------------------------------------------------------------------------
4164 * Function: rtl819x_query_rxpwrpercentage()
4165 *
4166 * Overview:
4167 *
4168 * Input: char antpower
4169 *
4170 * Output: NONE
4171 *
4172 * Return: 0-100 percentage
4173 *---------------------------------------------------------------------------*/
rtl819x_query_rxpwrpercentage(char antpower)4174 static u8 rtl819x_query_rxpwrpercentage(char antpower)
4175 {
4176 if ((antpower <= -100) || (antpower >= 20))
4177 return 0;
4178 else if (antpower >= 0)
4179 return 100;
4180 else
4181 return 100 + antpower;
4182
4183 } /* QueryRxPwrPercentage */
4184
rtl819x_evm_dbtopercentage(char value)4185 static u8 rtl819x_evm_dbtopercentage(char value)
4186 {
4187 char ret_val;
4188
4189 ret_val = value;
4190
4191 if (ret_val >= 0)
4192 ret_val = 0;
4193 if (ret_val <= -33)
4194 ret_val = -33;
4195 ret_val = 0 - ret_val;
4196 ret_val *= 3;
4197 if (ret_val == 99)
4198 ret_val = 100;
4199 return ret_val;
4200 }
4201 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)4202 static long rtl819x_signal_scale_mapping(long currsig)
4203 {
4204 long retsig;
4205
4206 /* Step 1. Scale mapping. */
4207 if (currsig >= 61 && currsig <= 100)
4208 retsig = 90 + ((currsig - 60) / 4);
4209 else if (currsig >= 41 && currsig <= 60)
4210 retsig = 78 + ((currsig - 40) / 2);
4211 else if (currsig >= 31 && currsig <= 40)
4212 retsig = 66 + (currsig - 30);
4213 else if (currsig >= 21 && currsig <= 30)
4214 retsig = 54 + (currsig - 20);
4215 else if (currsig >= 5 && currsig <= 20)
4216 retsig = 42 + (((currsig - 5) * 2) / 3);
4217 else if (currsig == 4)
4218 retsig = 36;
4219 else if (currsig == 3)
4220 retsig = 27;
4221 else if (currsig == 2)
4222 retsig = 18;
4223 else if (currsig == 1)
4224 retsig = 9;
4225 else
4226 retsig = currsig;
4227
4228 return retsig;
4229 }
4230
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)4231 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4232 {
4233 if (pdrvinfo->RxHT)
4234 return false;
4235
4236 switch (pdrvinfo->RxRate) {
4237 case DESC90_RATE1M:
4238 case DESC90_RATE2M:
4239 case DESC90_RATE5_5M:
4240 case DESC90_RATE11M:
4241 return true;
4242 default:
4243 return false;
4244 }
4245 }
4246
rtl8192_query_rxphystatus(struct r8192_priv * priv,struct ieee80211_rx_stats * pstats,rx_drvinfo_819x_usb * pdrvinfo,struct ieee80211_rx_stats * precord_stats,bool bpacket_match_bssid,bool bpacket_toself,bool bPacketBeacon,bool bToSelfBA)4247 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4248 struct ieee80211_rx_stats *pstats,
4249 rx_drvinfo_819x_usb *pdrvinfo,
4250 struct ieee80211_rx_stats *precord_stats,
4251 bool bpacket_match_bssid,
4252 bool bpacket_toself,
4253 bool bPacketBeacon,
4254 bool bToSelfBA)
4255 {
4256 phy_sts_ofdm_819xusb_t *pofdm_buf;
4257 phy_sts_cck_819xusb_t *pcck_buf;
4258 phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4259 u8 *prxpkt;
4260 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4261 char rx_pwr[4], rx_pwr_all = 0;
4262 char rx_snrX, rx_evmX;
4263 u8 evm, pwdb_all;
4264 u32 RSSI, total_rssi = 0;
4265 u8 is_cck_rate = 0;
4266 u8 rf_rx_num = 0;
4267 u8 sq;
4268
4269
4270 priv->stats.numqry_phystatus++;
4271
4272 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4273
4274 /* Record it for next packet processing */
4275 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4276 pstats->bPacketMatchBSSID =
4277 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4278 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4279 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4280 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4281 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4282
4283 prxpkt = (u8 *)pdrvinfo;
4284
4285 /* Move pointer to the 16th bytes. Phy status start address. */
4286 prxpkt += sizeof(rx_drvinfo_819x_usb);
4287
4288 /* Initial the cck and ofdm buffer pointer */
4289 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4290 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4291
4292 pstats->RxMIMOSignalQuality[0] = -1;
4293 pstats->RxMIMOSignalQuality[1] = -1;
4294 precord_stats->RxMIMOSignalQuality[0] = -1;
4295 precord_stats->RxMIMOSignalQuality[1] = -1;
4296
4297 if (is_cck_rate) {
4298 /* (1)Hardware does not provide RSSI for CCK */
4299
4300 /* (2)PWDB, Average PWDB cacluated by hardware
4301 * (for rate adaptive)
4302 */
4303 u8 report;
4304
4305 priv->stats.numqry_phystatusCCK++;
4306
4307 if (!priv->bCckHighPower) {
4308 report = pcck_buf->cck_agc_rpt & 0xc0;
4309 report >>= 6;
4310 switch (report) {
4311 case 0x3:
4312 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4313 break;
4314 case 0x2:
4315 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4316 break;
4317 case 0x1:
4318 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4319 break;
4320 case 0x0:
4321 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4322 break;
4323 }
4324 } else {
4325 report = pcck_buf->cck_agc_rpt & 0x60;
4326 report >>= 5;
4327 switch (report) {
4328 case 0x3:
4329 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4330 break;
4331 case 0x2:
4332 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4333 break;
4334 case 0x1:
4335 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4336 break;
4337 case 0x0:
4338 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4339 break;
4340 }
4341 }
4342
4343 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4344 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4345 pstats->RecvSignalPower = pwdb_all;
4346
4347 /* (3) Get Signal Quality (EVM) */
4348
4349 if (pstats->RxPWDBAll > 40) {
4350 sq = 100;
4351 } else {
4352 sq = pcck_buf->sq_rpt;
4353
4354 if (pcck_buf->sq_rpt > 64)
4355 sq = 0;
4356 else if (pcck_buf->sq_rpt < 20)
4357 sq = 100;
4358 else
4359 sq = ((64 - sq) * 100) / 44;
4360 }
4361 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4362 pstats->RxMIMOSignalQuality[0] =
4363 precord_stats->RxMIMOSignalQuality[0] = sq;
4364 pstats->RxMIMOSignalQuality[1] =
4365 precord_stats->RxMIMOSignalQuality[1] = -1;
4366
4367 } else {
4368 priv->stats.numqry_phystatusHT++;
4369
4370 /* (1)Get RSSI for HT rate */
4371 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4372 /* We will judge RF RX path now. */
4373 if (priv->brfpath_rxenable[i])
4374 rf_rx_num++;
4375 else
4376 continue;
4377
4378 if (!rtl8192_phy_CheckIsLegalRFPath(
4379 priv->ieee80211->dev, i))
4380 continue;
4381
4382 rx_pwr[i] =
4383 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4384
4385 /* Get Rx snr value in DB */
4386 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4387 rx_snrX = (char)(tmp_rxsnr);
4388 rx_snrX /= 2;
4389 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4390
4391 /* Translate DBM to percentage. */
4392 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4393 total_rssi += RSSI;
4394
4395 /* Record Signal Strength for next packet */
4396 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4397 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4398 }
4399
4400
4401 /* (2)PWDB, Average PWDB cacluated by hardware
4402 * (for rate adaptive)
4403 */
4404 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4405 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4406
4407 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4408 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4409
4410 /* (3)EVM of HT rate */
4411 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4412 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4413 /* both spatial stream make sense */
4414 max_spatial_stream = 2;
4415 else
4416 /* only spatial stream 1 makes sense */
4417 max_spatial_stream = 1;
4418
4419 for (i = 0; i < max_spatial_stream; i++) {
4420 tmp_rxevm = pofdm_buf->rxevm_X[i];
4421 rx_evmX = (char)(tmp_rxevm);
4422
4423 /* Do not use shift operation like "rx_evmX >>= 1"
4424 * because the compiler of free build environment will
4425 * set the most significant bit to "zero" when doing
4426 * shifting operation which may change a negative value
4427 * to positive one, then the dbm value (which is
4428 * supposed to be negative) is not correct anymore.
4429 */
4430 rx_evmX /= 2; /* dbm */
4431
4432 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4433 if (i == 0)
4434 /* Fill value in RFD, Get the first spatial
4435 * stream only
4436 */
4437 pstats->SignalQuality =
4438 precord_stats->SignalQuality =
4439 (u8)(evm & 0xff);
4440 pstats->RxMIMOSignalQuality[i] =
4441 precord_stats->RxMIMOSignalQuality[i] =
4442 (u8)(evm & 0xff);
4443 }
4444
4445
4446 /* record rx statistics for debug */
4447 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4448 prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4449 &rxsc_sgien_exflg;
4450 if (pdrvinfo->BW) /* 40M channel */
4451 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4452 else /* 20M channel */
4453 priv->stats.received_bwtype[0]++;
4454 }
4455
4456 /* UI BSS List signal strength(in percentage), make it good looking,
4457 * from 0~100. It is assigned to the BSS List in
4458 * GetValueFromBeaconOrProbeRsp().
4459 */
4460 if (is_cck_rate) {
4461 pstats->SignalStrength =
4462 precord_stats->SignalStrength =
4463 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4464 } else {
4465 /* We can judge RX path number now. */
4466 if (rf_rx_num != 0) {
4467 pstats->SignalStrength =
4468 precord_stats->SignalStrength =
4469 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4470 }
4471 }
4472 } /* QueryRxPhyStatus8190Pci */
4473
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4474 static void rtl8192_record_rxdesc_forlateruse(
4475 struct ieee80211_rx_stats *psrc_stats,
4476 struct ieee80211_rx_stats *ptarget_stats)
4477 {
4478 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4479 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4480 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4481 }
4482
4483
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,rx_drvinfo_819x_usb * pdrvinfo)4484 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4485 struct ieee80211_rx_stats *pstats,
4486 rx_drvinfo_819x_usb *pdrvinfo)
4487 {
4488 /* TODO: We must only check packet for current MAC address.
4489 * Not finish
4490 */
4491 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4492 struct net_device *dev = info->dev;
4493 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4494 bool bpacket_match_bssid, bpacket_toself;
4495 bool bPacketBeacon = false, bToSelfBA = false;
4496 static struct ieee80211_rx_stats previous_stats;
4497 struct rtl_80211_hdr_3addr *hdr;
4498 u16 fc, type;
4499
4500 /* Get Signal Quality for only RX data queue (but not command queue) */
4501
4502 u8 *tmp_buf;
4503 u8 *praddr;
4504
4505 /* Get MAC frame start address. */
4506 tmp_buf = (u8 *)skb->data;
4507
4508 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4509 fc = le16_to_cpu(hdr->frame_ctl);
4510 type = WLAN_FC_GET_TYPE(fc);
4511 praddr = hdr->addr1;
4512
4513 /* Check if the received packet is acceptable. */
4514 bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
4515 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4516 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4517 bpacket_toself = bpacket_match_bssid &
4518 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4519
4520 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4521 bPacketBeacon = true;
4522 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4523 if ((eqMacAddr(praddr, dev->dev_addr)))
4524 bToSelfBA = true;
4525 }
4526
4527
4528
4529 if (bpacket_match_bssid)
4530 priv->stats.numpacket_matchbssid++;
4531 if (bpacket_toself)
4532 priv->stats.numpacket_toself++;
4533 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4534 * Because phy information is contained in the last packet of AMPDU
4535 * only, so driver should process phy information of previous packet
4536 */
4537 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4538 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4539 bpacket_match_bssid, bpacket_toself,
4540 bPacketBeacon, bToSelfBA);
4541 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4542
4543 }
4544
4545 /**
4546 * Function: UpdateReceivedRateHistogramStatistics
4547 * Overview: Record the received data rate
4548 *
4549 * Input:
4550 * struct net_device *dev
4551 * struct ieee80211_rx_stats *stats
4552 *
4553 * Output:
4554 *
4555 * (priv->stats.ReceivedRateHistogram[] is updated)
4556 * Return:
4557 * None
4558 */
4559 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4560 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4561 struct ieee80211_rx_stats *stats)
4562 {
4563 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4564 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4565 u32 rcvType = 1;
4566 u32 rateIndex;
4567 /* 1: short preamble/GI, 0: long preamble/GI */
4568 u32 preamble_guardinterval;
4569
4570
4571 if (stats->bCRC)
4572 rcvType = 2;
4573 else if (stats->bICV)
4574 rcvType = 3;
4575
4576 if (stats->bShortPreamble)
4577 preamble_guardinterval = 1; /* short */
4578 else
4579 preamble_guardinterval = 0; /* long */
4580
4581 switch (stats->rate) {
4582 /* CCK rate */
4583 case MGN_1M:
4584 rateIndex = 0;
4585 break;
4586 case MGN_2M:
4587 rateIndex = 1;
4588 break;
4589 case MGN_5_5M:
4590 rateIndex = 2;
4591 break;
4592 case MGN_11M:
4593 rateIndex = 3;
4594 break;
4595 /* Legacy OFDM rate */
4596 case MGN_6M:
4597 rateIndex = 4;
4598 break;
4599 case MGN_9M:
4600 rateIndex = 5;
4601 break;
4602 case MGN_12M:
4603 rateIndex = 6;
4604 break;
4605 case MGN_18M:
4606 rateIndex = 7;
4607 break;
4608 case MGN_24M:
4609 rateIndex = 8;
4610 break;
4611 case MGN_36M:
4612 rateIndex = 9;
4613 break;
4614 case MGN_48M:
4615 rateIndex = 10;
4616 break;
4617 case MGN_54M:
4618 rateIndex = 11;
4619 break;
4620 /* 11n High throughput rate */
4621 case MGN_MCS0:
4622 rateIndex = 12;
4623 break;
4624 case MGN_MCS1:
4625 rateIndex = 13;
4626 break;
4627 case MGN_MCS2:
4628 rateIndex = 14;
4629 break;
4630 case MGN_MCS3:
4631 rateIndex = 15;
4632 break;
4633 case MGN_MCS4:
4634 rateIndex = 16;
4635 break;
4636 case MGN_MCS5:
4637 rateIndex = 17;
4638 break;
4639 case MGN_MCS6:
4640 rateIndex = 18;
4641 break;
4642 case MGN_MCS7:
4643 rateIndex = 19;
4644 break;
4645 case MGN_MCS8:
4646 rateIndex = 20;
4647 break;
4648 case MGN_MCS9:
4649 rateIndex = 21;
4650 break;
4651 case MGN_MCS10:
4652 rateIndex = 22;
4653 break;
4654 case MGN_MCS11:
4655 rateIndex = 23;
4656 break;
4657 case MGN_MCS12:
4658 rateIndex = 24;
4659 break;
4660 case MGN_MCS13:
4661 rateIndex = 25;
4662 break;
4663 case MGN_MCS14:
4664 rateIndex = 26;
4665 break;
4666 case MGN_MCS15:
4667 rateIndex = 27;
4668 break;
4669 default:
4670 rateIndex = 28;
4671 break;
4672 }
4673 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4674 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4675 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4676 }
4677
4678
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4679 static void query_rxdesc_status(struct sk_buff *skb,
4680 struct ieee80211_rx_stats *stats,
4681 bool bIsRxAggrSubframe)
4682 {
4683 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4684 struct net_device *dev = info->dev;
4685 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4686 rx_drvinfo_819x_usb *driver_info = NULL;
4687
4688 /* Get Rx Descriptor Information */
4689 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4690
4691 stats->Length = desc->Length;
4692 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4693 stats->RxBufShift = 0;
4694 stats->bICV = desc->ICV;
4695 stats->bCRC = desc->CRC32;
4696 stats->bHwError = stats->bCRC | stats->bICV;
4697 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4698 stats->Decrypted = !desc->SWDec;
4699
4700 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4701 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4702 stats->bHwError = false;
4703 else
4704 stats->bHwError = stats->bCRC | stats->bICV;
4705
4706 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4707 stats->bHwError |= 1;
4708 /* Get Driver Info */
4709 /* TODO: Need to verify it on FGPA platform
4710 * Driver info are written to the RxBuffer following rx desc
4711 */
4712 if (stats->RxDrvInfoSize != 0) {
4713 driver_info = (rx_drvinfo_819x_usb *)(
4714 skb->data
4715 + sizeof(rx_desc_819x_usb)
4716 + stats->RxBufShift
4717 );
4718 /* unit: 0.5M */
4719 /* TODO */
4720 if (!stats->bHwError) {
4721 u8 ret_rate;
4722
4723 ret_rate = HwRateToMRate90(driver_info->RxHT,
4724 driver_info->RxRate);
4725 if (ret_rate == 0xff) {
4726 /* Abnormal Case: Receive CRC OK packet with Rx
4727 * descriptor indicating non supported rate.
4728 * Special Error Handling here
4729 */
4730
4731 stats->bHwError = 1;
4732 /* Set 1M rate by default */
4733 stats->rate = MGN_1M;
4734 } else {
4735 stats->rate = ret_rate;
4736 }
4737 } else {
4738 stats->rate = 0x02;
4739 }
4740
4741 stats->bShortPreamble = driver_info->SPLCP;
4742
4743
4744 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4745
4746 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4747 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4748 (driver_info->FirstAGGR == 1);
4749 stats->TimeStampLow = driver_info->TSFL;
4750
4751 UpdateRxPktTimeStamp8190(dev, stats);
4752
4753 /* Rx A-MPDU */
4754 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4755 RT_TRACE(COMP_RXDESC,
4756 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4757 driver_info->FirstAGGR, driver_info->PartAggr);
4758
4759 }
4760
4761 skb_pull(skb, sizeof(rx_desc_819x_usb));
4762 /* Get Total offset of MPDU Frame Body */
4763 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4764 stats->bShift = 1;
4765 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4766 }
4767
4768 if (driver_info) {
4769 stats->RxIs40MHzPacket = driver_info->BW;
4770 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4771 }
4772 }
4773
rtl8192_rx_nomal(struct sk_buff * skb)4774 static void rtl8192_rx_nomal(struct sk_buff *skb)
4775 {
4776 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4777 struct net_device *dev = info->dev;
4778 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4779 struct ieee80211_rx_stats stats = {
4780 .signal = 0,
4781 .noise = 0x100 - 98,
4782 .rate = 0,
4783 .freq = IEEE80211_24GHZ_BAND,
4784 };
4785 u32 rx_pkt_len = 0;
4786 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4787 bool unicast_packet = false;
4788
4789 /* 20 is for ps-poll */
4790 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4791 /* first packet should not contain Rx aggregation header */
4792 query_rxdesc_status(skb, &stats, false);
4793 /* TODO */
4794 /* hardware related info */
4795 /* Process the MPDU received */
4796 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4797
4798 rx_pkt_len = skb->len;
4799 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4800 unicast_packet = false;
4801 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4802 /* TODO */
4803 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4804 /* TODO */
4805 } else {
4806 /* unicast packet */
4807 unicast_packet = true;
4808 }
4809
4810 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4811 dev_kfree_skb_any(skb);
4812 } else {
4813 priv->stats.rxoktotal++;
4814 if (unicast_packet)
4815 priv->stats.rxbytesunicast += rx_pkt_len;
4816 }
4817 } else {
4818 priv->stats.rxurberr++;
4819 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4820 dev_kfree_skb_any(skb);
4821 }
4822
4823 }
4824
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4825 static void rtl819xusb_process_received_packet(
4826 struct net_device *dev,
4827 struct ieee80211_rx_stats *pstats)
4828 {
4829 u8 *frame;
4830 u16 frame_len = 0;
4831 struct r8192_priv *priv = ieee80211_priv(dev);
4832
4833 /* Get shifted bytes of Starting address of 802.11 header. */
4834 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4835 frame = pstats->virtual_address;
4836 frame_len = pstats->packetlength;
4837 #ifdef TODO /* about HCT */
4838 if (!Adapter->bInHctTest)
4839 CountRxErrStatistics(Adapter, pRfd);
4840 #endif
4841 #ifdef ENABLE_PS /* for adding ps function in future */
4842 RT_RF_POWER_STATE rtState;
4843 /* When RF is off, we should not count the packet for hw/sw synchronize
4844 * reason, ie. there may be a duration while sw switch is changed and
4845 * hw switch is being changed.
4846 */
4847 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4848 (u8 *)(&rtState));
4849 if (rtState == eRfOff)
4850 return;
4851 #endif
4852 priv->stats.rxframgment++;
4853
4854 #ifdef TODO
4855 RmMonitorSignalStrength(Adapter, pRfd);
4856 #endif
4857 /* We have to release RFD and return if rx pkt is cmd pkt. */
4858 if (rtl819xusb_rx_command_packet(dev, pstats))
4859 return;
4860
4861 #ifdef SW_CRC_CHECK
4862 SwCrcCheck();
4863 #endif
4864
4865
4866 }
4867
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4868 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4869 struct ieee80211_rx_stats *stats)
4870 {
4871 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4872
4873 /* Get Rx Descriptor Information */
4874 stats->virtual_address = (u8 *)skb->data;
4875 stats->Length = desc->Length;
4876 stats->RxDrvInfoSize = 0;
4877 stats->RxBufShift = 0;
4878 stats->packetlength = stats->Length - scrclng;
4879 stats->fraglength = stats->packetlength;
4880 stats->fragoffset = 0;
4881 stats->ntotalfrag = 1;
4882 }
4883
4884
rtl8192_rx_cmd(struct sk_buff * skb)4885 static void rtl8192_rx_cmd(struct sk_buff *skb)
4886 {
4887 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4888 struct net_device *dev = info->dev;
4889 /* TODO */
4890 struct ieee80211_rx_stats stats = {
4891 .signal = 0,
4892 .noise = 0x100 - 98,
4893 .rate = 0,
4894 .freq = IEEE80211_24GHZ_BAND,
4895 };
4896
4897 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4898
4899 query_rx_cmdpkt_desc_status(skb, &stats);
4900 /* prfd->queue_id = 1; */
4901
4902 /* Process the command packet received. */
4903
4904 rtl819xusb_process_received_packet(dev, &stats);
4905
4906 dev_kfree_skb_any(skb);
4907 }
4908 }
4909
rtl8192_irq_rx_tasklet(struct r8192_priv * priv)4910 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4911 {
4912 struct sk_buff *skb;
4913 struct rtl8192_rx_info *info;
4914
4915 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4916 info = (struct rtl8192_rx_info *)skb->cb;
4917 switch (info->out_pipe) {
4918 /* Nomal packet pipe */
4919 case 3:
4920 priv->IrpPendingCount--;
4921 rtl8192_rx_nomal(skb);
4922 break;
4923
4924 /* Command packet pipe */
4925 case 9:
4926 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4927 info->out_pipe);
4928
4929 rtl8192_rx_cmd(skb);
4930 break;
4931
4932 default: /* should never get here! */
4933 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4934 info->out_pipe);
4935 dev_kfree_skb(skb);
4936 break;
4937
4938 }
4939 }
4940 }
4941
4942 static const struct net_device_ops rtl8192_netdev_ops = {
4943 .ndo_open = rtl8192_open,
4944 .ndo_stop = rtl8192_close,
4945 .ndo_get_stats = rtl8192_stats,
4946 .ndo_tx_timeout = tx_timeout,
4947 .ndo_do_ioctl = rtl8192_ioctl,
4948 .ndo_set_rx_mode = r8192_set_multicast,
4949 .ndo_set_mac_address = r8192_set_mac_adr,
4950 .ndo_validate_addr = eth_validate_addr,
4951 .ndo_change_mtu = eth_change_mtu,
4952 .ndo_start_xmit = ieee80211_xmit,
4953 };
4954
4955
4956 /****************************************************************************
4957 ---------------------------- USB_STUFF---------------------------
4958 *****************************************************************************/
4959
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4960 static int rtl8192_usb_probe(struct usb_interface *intf,
4961 const struct usb_device_id *id)
4962 {
4963 struct net_device *dev = NULL;
4964 struct r8192_priv *priv = NULL;
4965 struct usb_device *udev = interface_to_usbdev(intf);
4966 int ret;
4967
4968 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4969
4970 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4971 if (dev == NULL)
4972 return -ENOMEM;
4973
4974 usb_set_intfdata(intf, dev);
4975 SET_NETDEV_DEV(dev, &intf->dev);
4976 priv = ieee80211_priv(dev);
4977 priv->ieee80211 = netdev_priv(dev);
4978 priv->udev = udev;
4979
4980 dev->netdev_ops = &rtl8192_netdev_ops;
4981
4982 dev->wireless_handlers =
4983 (struct iw_handler_def *)&r8192_wx_handlers_def;
4984
4985 dev->type = ARPHRD_ETHER;
4986
4987 dev->watchdog_timeo = HZ * 3;
4988
4989 if (dev_alloc_name(dev, ifname) < 0) {
4990 RT_TRACE(COMP_INIT,
4991 "Oops: devname already taken! Trying wlan%%d...\n");
4992 ifname = "wlan%d";
4993 dev_alloc_name(dev, ifname);
4994 }
4995
4996 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4997 if (rtl8192_init(dev) != 0) {
4998 RT_TRACE(COMP_ERR, "Initialization failed");
4999 ret = -ENODEV;
5000 goto fail;
5001 }
5002 netif_carrier_off(dev);
5003 netif_stop_queue(dev);
5004
5005 ret = register_netdev(dev);
5006 if (ret)
5007 goto fail2;
5008
5009 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
5010 rtl8192_proc_init_one(dev);
5011
5012
5013 RT_TRACE(COMP_INIT, "Driver probe completed\n");
5014 return 0;
5015
5016 fail2:
5017 rtl8192_down(dev);
5018 kfree(priv->pFirmware);
5019 priv->pFirmware = NULL;
5020 rtl8192_usb_deleteendpoints(dev);
5021 destroy_workqueue(priv->priv_wq);
5022 mdelay(10);
5023 fail:
5024 free_ieee80211(dev);
5025
5026 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
5027 return ret;
5028 }
5029
5030 /* detach all the work and timer structure declared or inititialize
5031 * in r8192U_init function.
5032 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)5033 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
5034 {
5035
5036 cancel_work_sync(&priv->reset_wq);
5037 cancel_delayed_work(&priv->watch_dog_wq);
5038 cancel_delayed_work(&priv->update_beacon_wq);
5039 cancel_work_sync(&priv->qos_activate);
5040 }
5041
5042
rtl8192_usb_disconnect(struct usb_interface * intf)5043 static void rtl8192_usb_disconnect(struct usb_interface *intf)
5044 {
5045 struct net_device *dev = usb_get_intfdata(intf);
5046 struct r8192_priv *priv = ieee80211_priv(dev);
5047
5048 if (dev) {
5049 unregister_netdev(dev);
5050
5051 RT_TRACE(COMP_DOWN,
5052 "=============>wlan driver to be removed\n");
5053 rtl8192_proc_remove_one(dev);
5054
5055 rtl8192_down(dev);
5056 kfree(priv->pFirmware);
5057 priv->pFirmware = NULL;
5058 rtl8192_usb_deleteendpoints(dev);
5059 destroy_workqueue(priv->priv_wq);
5060 mdelay(10);
5061 }
5062 free_ieee80211(dev);
5063 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5064 }
5065
rtl8192_usb_module_init(void)5066 static int __init rtl8192_usb_module_init(void)
5067 {
5068 int ret;
5069
5070 #ifdef CONFIG_IEEE80211_DEBUG
5071 ret = ieee80211_debug_init();
5072 if (ret) {
5073 pr_err("ieee80211_debug_init() failed %d\n", ret);
5074 return ret;
5075 }
5076 #endif
5077 ret = ieee80211_crypto_init();
5078 if (ret) {
5079 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5080 return ret;
5081 }
5082
5083 ret = ieee80211_crypto_tkip_init();
5084 if (ret) {
5085 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5086 return ret;
5087 }
5088
5089 ret = ieee80211_crypto_ccmp_init();
5090 if (ret) {
5091 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5092 return ret;
5093 }
5094
5095 ret = ieee80211_crypto_wep_init();
5096 if (ret) {
5097 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5098 return ret;
5099 }
5100
5101 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5102 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5103 RT_TRACE(COMP_INIT, "Initializing module");
5104 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5105 rtl8192_proc_module_init();
5106 return usb_register(&rtl8192_usb_driver);
5107 }
5108
5109
rtl8192_usb_module_exit(void)5110 static void __exit rtl8192_usb_module_exit(void)
5111 {
5112 usb_deregister(&rtl8192_usb_driver);
5113
5114 RT_TRACE(COMP_DOWN, "Exiting");
5115 }
5116
5117
rtl8192_try_wake_queue(struct net_device * dev,int pri)5118 void rtl8192_try_wake_queue(struct net_device *dev, int pri)
5119 {
5120 unsigned long flags;
5121 short enough_desc;
5122 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5123
5124 spin_lock_irqsave(&priv->tx_lock, flags);
5125 enough_desc = check_nic_enough_desc(dev, pri);
5126 spin_unlock_irqrestore(&priv->tx_lock, flags);
5127
5128 if (enough_desc)
5129 ieee80211_wake_queue(priv->ieee80211);
5130 }
5131
EnableHWSecurityConfig8192(struct net_device * dev)5132 void EnableHWSecurityConfig8192(struct net_device *dev)
5133 {
5134 u8 SECR_value = 0x0;
5135 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5136 struct ieee80211_device *ieee = priv->ieee80211;
5137
5138 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5139 if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
5140 SECR_value |= SCR_RxUseDK;
5141 SECR_value |= SCR_TxUseDK;
5142 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5143 SECR_value |= SCR_RxUseDK;
5144 SECR_value |= SCR_TxUseDK;
5145 }
5146 /* add HWSec active enable here.
5147 * default using hwsec. when peer AP is in N mode only and
5148 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5149 * it), use software security. when peer AP is in b,g,n mode mixed and
5150 * pairwise_key_type is none_aes, use g mode hw security.
5151 */
5152
5153 ieee->hwsec_active = 1;
5154
5155 /* add hwsec_support flag to totol control hw_sec on/off */
5156 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5157 ieee->hwsec_active = 0;
5158 SECR_value &= ~SCR_RxDecEnable;
5159 }
5160 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5161 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5162 SECR_value);
5163 write_nic_byte(dev, SECR, SECR_value);
5164 }
5165
5166
setKey(struct net_device * dev,u8 EntryNo,u8 KeyIndex,u16 KeyType,u8 * MacAddr,u8 DefaultKey,u32 * KeyContent)5167 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5168 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5169 {
5170 u32 TargetCommand = 0;
5171 u32 TargetContent = 0;
5172 u16 usConfig = 0;
5173 u8 i;
5174
5175 if (EntryNo >= TOTAL_CAM_ENTRY)
5176 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5177
5178 RT_TRACE(COMP_SEC,
5179 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5180 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5181
5182 if (DefaultKey)
5183 usConfig |= BIT(15) | (KeyType << 2);
5184 else
5185 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
5186
5187
5188 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5189 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5190 TargetCommand |= BIT(31) | BIT(16);
5191
5192 if (i == 0) { /* MAC|Config */
5193 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5194 (u32)(*(MacAddr + 1)) << 24 |
5195 (u32)usConfig;
5196
5197 write_nic_dword(dev, WCAMI, TargetContent);
5198 write_nic_dword(dev, RWCAM, TargetCommand);
5199 } else if (i == 1) { /* MAC */
5200 TargetContent = (u32)(*(MacAddr + 2)) |
5201 (u32)(*(MacAddr + 3)) << 8 |
5202 (u32)(*(MacAddr + 4)) << 16 |
5203 (u32)(*(MacAddr + 5)) << 24;
5204 write_nic_dword(dev, WCAMI, TargetContent);
5205 write_nic_dword(dev, RWCAM, TargetCommand);
5206 } else {
5207 /* Key Material */
5208 if (KeyContent != NULL) {
5209 write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2)));
5210 write_nic_dword(dev, RWCAM, TargetCommand);
5211 }
5212 }
5213 }
5214
5215 }
5216
5217 /***************************************************************************
5218 ------------------- module init / exit stubs ----------------
5219 ****************************************************************************/
5220 module_init(rtl8192_usb_module_init);
5221 module_exit(rtl8192_usb_module_exit);
5222