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, 500);
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, 500);
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, 500);
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, 500);
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, 500);
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, 500);
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, 500);
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, 500);
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, 500);
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 *(struct net_device **)(skb->cb) = 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 if (!priv->oldaddr)
1753 return -ENOMEM;
1754 oldaddr = priv->oldaddr;
1755 align = ((long)oldaddr) & 3;
1756 if (align) {
1757 newaddr = oldaddr + 4 - align;
1758 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1759 } else {
1760 newaddr = oldaddr;
1761 priv->rx_urb[16]->transfer_buffer_length = 16;
1762 }
1763 priv->rx_urb[16]->transfer_buffer = newaddr;
1764 }
1765 #endif
1766
1767 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1768 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1769 GFP_KERNEL);
1770 if (!priv->pp_rxskb) {
1771 kfree(priv->rx_urb);
1772
1773 priv->pp_rxskb = NULL;
1774 priv->rx_urb = NULL;
1775
1776 DMESGE("Endpoint Alloc Failure");
1777 return -ENOMEM;
1778 }
1779
1780 netdev_dbg(dev, "End of initendpoints\n");
1781 return 0;
1782
1783 }
1784 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1785 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1786 {
1787 int i;
1788 struct r8192_priv *priv = ieee80211_priv(dev);
1789
1790 if (priv->rx_urb) {
1791 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1792 usb_kill_urb(priv->rx_urb[i]);
1793 usb_free_urb(priv->rx_urb[i]);
1794 }
1795 kfree(priv->rx_urb);
1796 priv->rx_urb = NULL;
1797 }
1798 kfree(priv->oldaddr);
1799 priv->oldaddr = NULL;
1800
1801 kfree(priv->pp_rxskb);
1802 priv->pp_rxskb = NULL;
1803 }
1804 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1805 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1806 {
1807 int i;
1808 struct r8192_priv *priv = ieee80211_priv(dev);
1809
1810 #ifndef JACKSON_NEW_RX
1811
1812 if (priv->rx_urb) {
1813 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1814 usb_kill_urb(priv->rx_urb[i]);
1815 kfree(priv->rx_urb[i]->transfer_buffer);
1816 usb_free_urb(priv->rx_urb[i]);
1817 }
1818 kfree(priv->rx_urb);
1819 priv->rx_urb = NULL;
1820
1821 }
1822 #else
1823 kfree(priv->rx_urb);
1824 priv->rx_urb = NULL;
1825 kfree(priv->oldaddr);
1826 priv->oldaddr = NULL;
1827
1828 kfree(priv->pp_rxskb);
1829 priv->pp_rxskb = 0;
1830
1831 #endif
1832 }
1833 #endif
1834
1835 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1836 static void rtl8192_link_change(struct net_device *dev)
1837 {
1838 struct r8192_priv *priv = ieee80211_priv(dev);
1839 struct ieee80211_device *ieee = priv->ieee80211;
1840
1841 if (ieee->state == IEEE80211_LINKED) {
1842 rtl8192_net_update(dev);
1843 rtl8192_update_ratr_table(dev);
1844 /* Add this as in pure N mode, wep encryption will use software
1845 * way, but there is no chance to set this as wep will not set
1846 * group key in wext.
1847 */
1848 if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
1849 KEY_TYPE_WEP104 == ieee->pairwise_key_type)
1850 EnableHWSecurityConfig8192(dev);
1851 }
1852 /*update timing params*/
1853 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1854 u32 reg = 0;
1855
1856 read_nic_dword(dev, RCR, ®);
1857 if (priv->ieee80211->state == IEEE80211_LINKED)
1858 priv->ReceiveConfig = reg |= RCR_CBSSID;
1859 else
1860 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1861 write_nic_dword(dev, RCR, reg);
1862 }
1863 }
1864
1865 static struct ieee80211_qos_parameters def_qos_parameters = {
1866 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1867 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1868 {2, 2, 2, 2},/* aifs */
1869 {0, 0, 0, 0},/* flags */
1870 {0, 0, 0, 0} /* tx_op_limit */
1871 };
1872
1873
rtl8192_update_beacon(struct work_struct * work)1874 static void rtl8192_update_beacon(struct work_struct *work)
1875 {
1876 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1877 update_beacon_wq.work);
1878 struct net_device *dev = priv->ieee80211->dev;
1879 struct ieee80211_device *ieee = priv->ieee80211;
1880 struct ieee80211_network *net = &ieee->current_network;
1881
1882 if (ieee->pHTInfo->bCurrentHTSupport)
1883 HTUpdateSelfAndPeerSetting(ieee, net);
1884 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1885 net->bssht.bdRT2RTLongSlotTime;
1886 rtl8192_update_cap(dev, net->capability);
1887 }
1888 /*
1889 * background support to run QoS activate functionality
1890 */
1891 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1892 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1893 static void rtl8192_qos_activate(struct work_struct *work)
1894 {
1895 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1896 qos_activate);
1897 struct net_device *dev = priv->ieee80211->dev;
1898 struct ieee80211_qos_parameters *qos_parameters =
1899 &priv->ieee80211->current_network.qos_data.parameters;
1900 u8 mode = priv->ieee80211->current_network.mode;
1901 u32 u1bAIFS;
1902 u32 u4bAcParam;
1903 u32 op_limit;
1904 u32 cw_max;
1905 u32 cw_min;
1906 int i;
1907
1908 mutex_lock(&priv->mutex);
1909 if (priv->ieee80211->state != IEEE80211_LINKED)
1910 goto success;
1911 RT_TRACE(COMP_QOS,
1912 "qos active process with associate response received\n");
1913 /* It better set slot time at first
1914 *
1915 * For we just support b/g mode at present, let the slot time at
1916 * 9/20 selection
1917 *
1918 * update the ac parameter to related registers
1919 */
1920 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1921 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1922 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1923 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1924 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1925 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1926 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1927 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1928 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1929 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1930 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1931 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1932 }
1933
1934 success:
1935 mutex_unlock(&priv->mutex);
1936 }
1937
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1938 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1939 int active_network,
1940 struct ieee80211_network *network)
1941 {
1942 int ret = 0;
1943 u32 size = sizeof(struct ieee80211_qos_parameters);
1944
1945 if (priv->ieee80211->state != IEEE80211_LINKED)
1946 return ret;
1947
1948 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1949 return ret;
1950
1951 if (network->flags & NETWORK_HAS_QOS_MASK) {
1952 if (active_network &&
1953 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1954 network->qos_data.active = network->qos_data.supported;
1955
1956 if ((network->qos_data.active == 1) && (active_network == 1) &&
1957 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1958 (network->qos_data.old_param_count !=
1959 network->qos_data.param_count)) {
1960 network->qos_data.old_param_count =
1961 network->qos_data.param_count;
1962 queue_work(priv->priv_wq, &priv->qos_activate);
1963 RT_TRACE(COMP_QOS,
1964 "QoS parameters change call qos_activate\n");
1965 }
1966 } else {
1967 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1968 &def_qos_parameters, size);
1969
1970 if ((network->qos_data.active == 1) && (active_network == 1)) {
1971 queue_work(priv->priv_wq, &priv->qos_activate);
1972 RT_TRACE(COMP_QOS,
1973 "QoS was disabled call qos_activate\n");
1974 }
1975 network->qos_data.active = 0;
1976 network->qos_data.supported = 0;
1977 }
1978
1979 return 0;
1980 }
1981
1982 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1983 static int rtl8192_handle_beacon(struct net_device *dev,
1984 struct ieee80211_beacon *beacon,
1985 struct ieee80211_network *network)
1986 {
1987 struct r8192_priv *priv = ieee80211_priv(dev);
1988
1989 rtl8192_qos_handle_probe_response(priv, 1, network);
1990 queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
1991 return 0;
1992
1993 }
1994
1995 /*
1996 * handling the beaconing responses. if we get different QoS setting
1997 * off the network from the associated setting, adjust the QoS
1998 * setting
1999 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)2000 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
2001 struct ieee80211_network *network)
2002 {
2003 unsigned long flags;
2004 u32 size = sizeof(struct ieee80211_qos_parameters);
2005 int set_qos_param = 0;
2006
2007 if ((priv == NULL) || (network == NULL))
2008 return 0;
2009
2010 if (priv->ieee80211->state != IEEE80211_LINKED)
2011 return 0;
2012
2013 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
2014 return 0;
2015
2016 spin_lock_irqsave(&priv->ieee80211->lock, flags);
2017 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
2018 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
2019 &network->qos_data.parameters,
2020 sizeof(struct ieee80211_qos_parameters));
2021 priv->ieee80211->current_network.qos_data.active = 1;
2022 set_qos_param = 1;
2023 /* update qos parameter for current network */
2024 priv->ieee80211->current_network.qos_data.old_param_count =
2025 priv->ieee80211->current_network.qos_data.param_count;
2026 priv->ieee80211->current_network.qos_data.param_count =
2027 network->qos_data.param_count;
2028 } else {
2029 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
2030 &def_qos_parameters, size);
2031 priv->ieee80211->current_network.qos_data.active = 0;
2032 priv->ieee80211->current_network.qos_data.supported = 0;
2033 set_qos_param = 1;
2034 }
2035
2036 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
2037
2038 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
2039 network->flags,
2040 priv->ieee80211->current_network.qos_data.active);
2041 if (set_qos_param == 1)
2042 queue_work(priv->priv_wq, &priv->qos_activate);
2043
2044
2045 return 0;
2046 }
2047
2048
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)2049 static int rtl8192_handle_assoc_response(
2050 struct net_device *dev,
2051 struct ieee80211_assoc_response_frame *resp,
2052 struct ieee80211_network *network)
2053 {
2054 struct r8192_priv *priv = ieee80211_priv(dev);
2055
2056 rtl8192_qos_association_resp(priv, network);
2057 return 0;
2058 }
2059
2060
rtl8192_update_ratr_table(struct net_device * dev)2061 static void rtl8192_update_ratr_table(struct net_device *dev)
2062 {
2063 struct r8192_priv *priv = ieee80211_priv(dev);
2064 struct ieee80211_device *ieee = priv->ieee80211;
2065 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2066 u32 ratr_value = 0;
2067 u8 rate_index = 0;
2068
2069 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2070 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2071 switch (ieee->mode) {
2072 case IEEE_A:
2073 ratr_value &= 0x00000FF0;
2074 break;
2075 case IEEE_B:
2076 ratr_value &= 0x0000000F;
2077 break;
2078 case IEEE_G:
2079 ratr_value &= 0x00000FF7;
2080 break;
2081 case IEEE_N_24G:
2082 case IEEE_N_5G:
2083 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2084 ratr_value &= 0x0007F007;
2085 } else {
2086 if (priv->rf_type == RF_1T2R)
2087 ratr_value &= 0x000FF007;
2088 else
2089 ratr_value &= 0x0F81F007;
2090 }
2091 break;
2092 default:
2093 break;
2094 }
2095 ratr_value &= 0x0FFFFFFF;
2096 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2097 ratr_value |= 0x80000000;
2098 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2099 ieee->pHTInfo->bCurShortGI20MHz)
2100 ratr_value |= 0x80000000;
2101 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2102 write_nic_byte(dev, UFWP, 1);
2103 }
2104
2105 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2106 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)2107 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2108 {
2109 struct r8192_priv *priv = ieee80211_priv(dev);
2110 struct ieee80211_device *ieee = priv->ieee80211;
2111 struct ieee80211_network *network = &ieee->current_network;
2112 int wpa_ie_len = ieee->wpa_ie_len;
2113 struct ieee80211_crypt_data *crypt;
2114 int encrypt;
2115
2116 crypt = ieee->crypt[ieee->tx_keyidx];
2117 /* we use connecting AP's capability instead of only security config
2118 * on our driver to distinguish whether it should use N mode or G mode
2119 */
2120 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2121 (ieee->host_encrypt && crypt && crypt->ops &&
2122 (0 == strcmp(crypt->ops->name, "WEP")));
2123
2124 /* simply judge */
2125 if (encrypt && (wpa_ie_len == 0)) {
2126 /* wep encryption, no N mode setting */
2127 return false;
2128 } else if ((wpa_ie_len != 0)) {
2129 /* parse pairwise key type */
2130 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))))
2131 return true;
2132 else
2133 return false;
2134 } else {
2135 return true;
2136 }
2137
2138 return true;
2139 }
2140
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)2141 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2142 {
2143 struct r8192_priv *priv = ieee80211_priv(dev);
2144
2145 return priv->ieee80211->bHalfWirelessN24GMode;
2146 }
2147
rtl8192_refresh_supportrate(struct r8192_priv * priv)2148 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2149 {
2150 struct ieee80211_device *ieee = priv->ieee80211;
2151 /* We do not consider set support rate for ABG mode, only
2152 * HT MCS rate is set here.
2153 */
2154 if (ieee->mode == WIRELESS_MODE_N_24G ||
2155 ieee->mode == WIRELESS_MODE_N_5G)
2156 memcpy(ieee->Regdot11HTOperationalRateSet,
2157 ieee->RegHTSuppRateSet, 16);
2158 else
2159 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2160 }
2161
rtl8192_getSupportedWireleeMode(struct net_device * dev)2162 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2163 {
2164 struct r8192_priv *priv = ieee80211_priv(dev);
2165 u8 ret = 0;
2166
2167 switch (priv->rf_chip) {
2168 case RF_8225:
2169 case RF_8256:
2170 case RF_PSEUDO_11N:
2171 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2172 break;
2173 case RF_8258:
2174 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2175 break;
2176 default:
2177 ret = WIRELESS_MODE_B;
2178 break;
2179 }
2180 return ret;
2181 }
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2182 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2183 {
2184 struct r8192_priv *priv = ieee80211_priv(dev);
2185 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2186
2187 if (wireless_mode == WIRELESS_MODE_AUTO ||
2188 (wireless_mode & bSupportMode) == 0) {
2189 if (bSupportMode & WIRELESS_MODE_N_24G) {
2190 wireless_mode = WIRELESS_MODE_N_24G;
2191 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2192 wireless_mode = WIRELESS_MODE_N_5G;
2193 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2194 wireless_mode = WIRELESS_MODE_A;
2195 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2196 wireless_mode = WIRELESS_MODE_G;
2197 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2198 wireless_mode = WIRELESS_MODE_B;
2199 } else {
2200 RT_TRACE(COMP_ERR,
2201 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2202 __func__, bSupportMode);
2203 wireless_mode = WIRELESS_MODE_B;
2204 }
2205 }
2206 #ifdef TO_DO_LIST
2207 /* TODO: this function doesn't work well at this time,
2208 * we should wait for FPGA
2209 */
2210 ActUpdateChannelAccessSetting(
2211 pAdapter, pHalData->CurrentWirelessMode,
2212 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2213 #endif
2214 priv->ieee80211->mode = wireless_mode;
2215
2216 if (wireless_mode == WIRELESS_MODE_N_24G ||
2217 wireless_mode == WIRELESS_MODE_N_5G)
2218 priv->ieee80211->pHTInfo->bEnableHT = 1;
2219 else
2220 priv->ieee80211->pHTInfo->bEnableHT = 0;
2221 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2222 rtl8192_refresh_supportrate(priv);
2223
2224 }
2225 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2226 static void rtl8192_init_priv_variable(struct net_device *dev)
2227 {
2228 struct r8192_priv *priv = ieee80211_priv(dev);
2229 u8 i;
2230
2231 priv->card_8192 = NIC_8192U;
2232 priv->chan = 1; /* set to channel 1 */
2233 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2234 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2235 priv->ieee80211->ieee_up = 0;
2236 priv->retry_rts = DEFAULT_RETRY_RTS;
2237 priv->retry_data = DEFAULT_RETRY_DATA;
2238 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2239 priv->ieee80211->rate = 110; /* 11 mbps */
2240 priv->ieee80211->short_slot = 1;
2241 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2242 priv->CckPwEnl = 6;
2243 /* for silent reset */
2244 priv->IrpPendingCount = 1;
2245 priv->ResetProgress = RESET_TYPE_NORESET;
2246 priv->bForcedSilentReset = false;
2247 priv->bDisableNormalResetCheck = false;
2248 priv->force_reset = false;
2249
2250 /* we don't use FW read/write RF until stable firmware is available. */
2251 priv->ieee80211->FwRWRF = 0;
2252 priv->ieee80211->current_network.beacon_interval =
2253 DEFAULT_BEACONINTERVAL;
2254 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2255 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2256 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2257 IEEE_SOFTMAC_BEACONS;
2258
2259 priv->ieee80211->active_scan = 1;
2260 priv->ieee80211->modulation =
2261 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2262 priv->ieee80211->host_encrypt = 1;
2263 priv->ieee80211->host_decrypt = 1;
2264 priv->ieee80211->start_send_beacons = NULL;
2265 priv->ieee80211->stop_send_beacons = NULL;
2266 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2267 priv->ieee80211->set_chan = rtl8192_set_chan;
2268 priv->ieee80211->link_change = rtl8192_link_change;
2269 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2270 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2271 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2272 priv->ieee80211->init_wmmparam_flag = 0;
2273 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2274 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2275 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2276 priv->ieee80211->qos_support = 1;
2277
2278 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2279 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2280 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2281
2282 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2283 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2284 GetHalfNmodeSupportByAPs819xUsb;
2285 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2286
2287 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2288 priv->card_type = USB;
2289 #ifdef TO_DO_LIST
2290 if (Adapter->bInHctTest) {
2291 pHalData->ShortRetryLimit = 7;
2292 pHalData->LongRetryLimit = 7;
2293 }
2294 #endif
2295 priv->ShortRetryLimit = 0x30;
2296 priv->LongRetryLimit = 0x30;
2297 priv->EarlyRxThreshold = 7;
2298 priv->enable_gpio0 = 0;
2299 priv->TransmitConfig =
2300 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2301 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2302 /* Short retry limit */
2303 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2304 /* Long retry limit */
2305 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2306 /* FALSE: HW provides PLCP length and LENGEXT
2307 * TRUE: SW provides them
2308 */
2309 (false ? TCR_SAT : 0);
2310 #ifdef TO_DO_LIST
2311 if (Adapter->bInHctTest)
2312 pHalData->ReceiveConfig =
2313 pHalData->CSMethod |
2314 /* accept management/data */
2315 RCR_AMF | RCR_ADF |
2316 /* accept control frame for SW
2317 * AP needs PS-poll
2318 */
2319 RCR_ACF |
2320 /* accept BC/MC/UC */
2321 RCR_AB | RCR_AM | RCR_APM |
2322 /* accept ICV/CRC error
2323 * packet
2324 */
2325 RCR_AICV | RCR_ACRC32 |
2326 /* Max DMA Burst Size per Tx
2327 * DMA Burst, 7: unlimited.
2328 */
2329 ((u32)7 << RCR_MXDMA_OFFSET) |
2330 /* Rx FIFO Threshold,
2331 * 7: No Rx threshold.
2332 */
2333 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2334 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2335 else
2336
2337 #endif
2338 priv->ReceiveConfig =
2339 /* accept management/data */
2340 RCR_AMF | RCR_ADF |
2341 /* accept control frame for SW AP needs PS-poll */
2342 RCR_ACF |
2343 /* accept BC/MC/UC */
2344 RCR_AB | RCR_AM | RCR_APM |
2345 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2346 ((u32)7 << RCR_MXDMA_OFFSET) |
2347 /* Rx FIFO Threshold, 7: No Rx threshold. */
2348 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2349 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2350
2351 priv->AcmControl = 0;
2352 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2353
2354 /* rx related queue */
2355 skb_queue_head_init(&priv->rx_queue);
2356 skb_queue_head_init(&priv->skb_queue);
2357
2358 /* Tx related queue */
2359 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2360 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2361 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2362 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2363 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2364 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2365 priv->rf_set_chan = rtl8192_phy_SwChnl;
2366 }
2367
2368 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2369 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2370 {
2371 spin_lock_init(&priv->tx_lock);
2372 spin_lock_init(&priv->irq_lock);
2373 sema_init(&priv->wx_sem, 1);
2374 sema_init(&priv->rf_sem, 1);
2375 mutex_init(&priv->mutex);
2376 }
2377
2378 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2379
2380 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2381 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2382 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2383 static void rtl8192_init_priv_task(struct net_device *dev)
2384 {
2385 struct r8192_priv *priv = ieee80211_priv(dev);
2386
2387 priv->priv_wq = create_workqueue(DRV_NAME);
2388
2389 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2390
2391 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2392 rtl819x_watchdog_wqcallback);
2393 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2394 dm_txpower_trackingcallback);
2395 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2396 dm_rf_pathcheck_workitemcallback);
2397 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2398 rtl8192_update_beacon);
2399 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2400 InitialGainOperateWorkItemCallBack);
2401 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2402
2403 tasklet_init(&priv->irq_rx_tasklet,
2404 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2405 (unsigned long)priv);
2406 }
2407
rtl8192_get_eeprom_size(struct net_device * dev)2408 static void rtl8192_get_eeprom_size(struct net_device *dev)
2409 {
2410 u16 curCR = 0;
2411 struct r8192_priv *priv = ieee80211_priv(dev);
2412
2413 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2414 read_nic_word_E(dev, EPROM_CMD, &curCR);
2415 RT_TRACE(COMP_EPROM,
2416 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2417 /* whether need I consider BIT(5?) */
2418 priv->epromtype =
2419 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2420 RT_TRACE(COMP_EPROM,
2421 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2422 }
2423
2424 /* used to swap endian. as ntohl & htonl are not necessary
2425 * to swap endian, so use this instead.
2426 */
endian_swap(u16 * data)2427 static inline u16 endian_swap(u16 *data)
2428 {
2429 u16 tmp = *data;
2430 *data = (tmp >> 8) | (tmp << 8);
2431 return *data;
2432 }
rtl8192_read_eeprom_info(struct net_device * dev)2433 static void rtl8192_read_eeprom_info(struct net_device *dev)
2434 {
2435 u16 wEPROM_ID = 0;
2436 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2437 u8 bLoad_From_EEPOM = false;
2438 struct r8192_priv *priv = ieee80211_priv(dev);
2439 u16 tmpValue = 0;
2440 int i;
2441
2442 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2443 wEPROM_ID = eprom_read(dev, 0); /* first read EEPROM ID out; */
2444 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2445
2446 if (wEPROM_ID != RTL8190_EEPROM_ID)
2447 RT_TRACE(COMP_ERR,
2448 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2449 wEPROM_ID, RTL8190_EEPROM_ID);
2450 else
2451 bLoad_From_EEPOM = true;
2452
2453 if (bLoad_From_EEPOM) {
2454 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2455 priv->eeprom_vid = endian_swap(&tmpValue);
2456 priv->eeprom_pid = eprom_read(dev, EEPROM_PID >> 1);
2457 tmpValue = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2458 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2459 priv->btxpowerdata_readfromEEPORM = true;
2460 priv->eeprom_CustomerID =
2461 eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2462 } else {
2463 priv->eeprom_vid = 0;
2464 priv->eeprom_pid = 0;
2465 priv->card_8192_version = VERSION_819xU_B;
2466 priv->eeprom_ChannelPlan = 0;
2467 priv->eeprom_CustomerID = 0;
2468 }
2469 RT_TRACE(COMP_EPROM,
2470 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2471 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2472 priv->eeprom_ChannelPlan);
2473 /* set channelplan from eeprom */
2474 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2475 if (bLoad_From_EEPOM) {
2476 int i;
2477
2478 for (i = 0; i < 6; i += 2) {
2479 u16 tmp = 0;
2480
2481 tmp = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2482 *(u16 *)(&dev->dev_addr[i]) = tmp;
2483 }
2484 } else {
2485 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2486 /* should I set IDR0 here? */
2487 }
2488 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2489 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2490 priv->rf_chip = RF_8256;
2491
2492 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2493 /* read Tx power gain offset of legacy OFDM to HT rate */
2494 if (bLoad_From_EEPOM)
2495 priv->EEPROMTxPowerDiff = (eprom_read(dev, (EEPROM_TxPowerDiff >> 1)) & 0xff00) >> 8;
2496 else
2497 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2498 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2499 /* read ThermalMeter from EEPROM */
2500 if (bLoad_From_EEPOM)
2501 priv->EEPROMThermalMeter = (u8)(eprom_read(dev, (EEPROM_ThermalMeter >> 1)) & 0x00ff);
2502 else
2503 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2504 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2505 /* for tx power track */
2506 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2507 /* read antenna tx power offset of B/C/D to A from EEPROM */
2508 if (bLoad_From_EEPOM)
2509 priv->EEPROMPwDiff = (eprom_read(dev, (EEPROM_PwDiff >> 1)) & 0x0f00) >> 8;
2510 else
2511 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2512 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2513 /* Read CrystalCap from EEPROM */
2514 if (bLoad_From_EEPOM)
2515 priv->EEPROMCrystalCap = (eprom_read(dev, (EEPROM_CrystalCap >> 1)) & 0x0f);
2516 else
2517 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2518 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2519 /* get per-channel Tx power level */
2520 if (bLoad_From_EEPOM)
2521 priv->EEPROM_Def_Ver = (eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1)) & 0xff00) >> 8;
2522 else
2523 priv->EEPROM_Def_Ver = 1;
2524 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2525 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2526 int i;
2527
2528 if (bLoad_From_EEPOM)
2529 priv->EEPROMTxPowerLevelCCK = (eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1)) & 0xff) >> 8;
2530 else
2531 priv->EEPROMTxPowerLevelCCK = 0x10;
2532 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2533 for (i = 0; i < 3; i++) {
2534 if (bLoad_From_EEPOM) {
2535 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2536 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2537 tmpValue = tmpValue & 0x00ff;
2538 else
2539 tmpValue = (tmpValue & 0xff00) >> 8;
2540 } else {
2541 tmpValue = 0x10;
2542 }
2543 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2544 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2545 }
2546 } else if (priv->EEPROM_Def_Ver == 1) {
2547 if (bLoad_From_EEPOM) {
2548 tmpValue = eprom_read(dev,
2549 EEPROM_TxPwIndex_CCK_V1 >> 1);
2550 tmpValue = (tmpValue & 0xff00) >> 8;
2551 } else {
2552 tmpValue = 0x10;
2553 }
2554 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2555
2556 if (bLoad_From_EEPOM)
2557 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2558 else
2559 tmpValue = 0x1010;
2560 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2561 if (bLoad_From_EEPOM)
2562 tmpValue = eprom_read(dev,
2563 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2564 else
2565 tmpValue = 0x1010;
2566 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2567 if (bLoad_From_EEPOM)
2568 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2569 else
2570 tmpValue = 0x10;
2571 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2572 } /* endif EEPROM_Def_Ver == 1 */
2573
2574 /* update HAL variables */
2575 for (i = 0; i < 14; i++) {
2576 if (i <= 3)
2577 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2578 else if (i >= 4 && i <= 9)
2579 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2580 else
2581 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2582 }
2583
2584 for (i = 0; i < 14; i++) {
2585 if (priv->EEPROM_Def_Ver == 0) {
2586 if (i <= 3)
2587 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2588 else if (i >= 4 && i <= 9)
2589 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2590 else
2591 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2592 } else if (priv->EEPROM_Def_Ver == 1) {
2593 if (i <= 3)
2594 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2595 else if (i >= 4 && i <= 9)
2596 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2597 else
2598 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2599 }
2600 }
2601 priv->TxPowerDiff = priv->EEPROMPwDiff;
2602 /* Antenna B gain offset to antenna A, bit0~3 */
2603 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2604 /* Antenna C gain offset to antenna A, bit4~7 */
2605 priv->AntennaTxPwDiff[1] =
2606 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2607 /* CrystalCap, bit12~15 */
2608 priv->CrystalCap = priv->EEPROMCrystalCap;
2609 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2610 * 92U does not enable TX power tracking.
2611 */
2612 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2613 } /* end if VersionID == VERSION_819xU_A */
2614
2615 /* for dlink led */
2616 switch (priv->eeprom_CustomerID) {
2617 case EEPROM_CID_RUNTOP:
2618 priv->CustomerID = RT_CID_819x_RUNTOP;
2619 break;
2620
2621 case EEPROM_CID_DLINK:
2622 priv->CustomerID = RT_CID_DLINK;
2623 break;
2624
2625 default:
2626 priv->CustomerID = RT_CID_DEFAULT;
2627 break;
2628
2629 }
2630
2631 switch (priv->CustomerID) {
2632 case RT_CID_819x_RUNTOP:
2633 priv->LedStrategy = SW_LED_MODE2;
2634 break;
2635
2636 case RT_CID_DLINK:
2637 priv->LedStrategy = SW_LED_MODE4;
2638 break;
2639
2640 default:
2641 priv->LedStrategy = SW_LED_MODE0;
2642 break;
2643
2644 }
2645
2646
2647 if (priv->rf_type == RF_1T2R)
2648 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2649 else
2650 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2651
2652 /* We can only know RF type in the function. So we have to init
2653 * DIG RATR table again.
2654 */
2655 init_rate_adaptive(dev);
2656
2657 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2658 }
2659
rtl8192_get_channel_map(struct net_device * dev)2660 static short rtl8192_get_channel_map(struct net_device *dev)
2661 {
2662 struct r8192_priv *priv = ieee80211_priv(dev);
2663
2664 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2665 netdev_err(dev,
2666 "rtl8180_init: Error channel plan! Set to default.\n");
2667 priv->ChannelPlan = 0;
2668 }
2669 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2670
2671 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2672 return 0;
2673 }
2674
rtl8192_init(struct net_device * dev)2675 static short rtl8192_init(struct net_device *dev)
2676 {
2677
2678 struct r8192_priv *priv = ieee80211_priv(dev);
2679
2680 memset(&(priv->stats), 0, sizeof(struct Stats));
2681 memset(priv->txqueue_to_outpipemap, 0, 9);
2682 #ifdef PIPE12
2683 {
2684 int i = 0;
2685 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2686
2687 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2688 }
2689 #else
2690 {
2691 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2692
2693 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2694 }
2695 #endif
2696 rtl8192_init_priv_variable(dev);
2697 rtl8192_init_priv_lock(priv);
2698 rtl8192_init_priv_task(dev);
2699 rtl8192_get_eeprom_size(dev);
2700 rtl8192_read_eeprom_info(dev);
2701 rtl8192_get_channel_map(dev);
2702 init_hal_dm(dev);
2703 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2704 (unsigned long)dev);
2705 if (rtl8192_usb_initendpoints(dev) != 0) {
2706 DMESG("Endopoints initialization failed");
2707 return -ENOMEM;
2708 }
2709
2710 return 0;
2711 }
2712
2713 /******************************************************************************
2714 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2715 * not to do all the hw config as its name says
2716 * input: net_device dev
2717 * output: none
2718 * return: none
2719 * notice: This part need to modified according to the rate set we filtered
2720 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2721 static void rtl8192_hwconfig(struct net_device *dev)
2722 {
2723 u32 regRATR = 0, regRRSR = 0;
2724 u8 regBwOpMode = 0, regTmp = 0;
2725 struct r8192_priv *priv = ieee80211_priv(dev);
2726 u32 ratr_value = 0;
2727
2728 /* Set RRSR, RATR, and BW_OPMODE registers */
2729 switch (priv->ieee80211->mode) {
2730 case WIRELESS_MODE_B:
2731 regBwOpMode = BW_OPMODE_20MHZ;
2732 regRATR = RATE_ALL_CCK;
2733 regRRSR = RATE_ALL_CCK;
2734 break;
2735 case WIRELESS_MODE_A:
2736 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2737 regRATR = RATE_ALL_OFDM_AG;
2738 regRRSR = RATE_ALL_OFDM_AG;
2739 break;
2740 case WIRELESS_MODE_G:
2741 regBwOpMode = BW_OPMODE_20MHZ;
2742 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2743 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2744 break;
2745 case WIRELESS_MODE_AUTO:
2746 #ifdef TO_DO_LIST
2747 if (Adapter->bInHctTest) {
2748 regBwOpMode = BW_OPMODE_20MHZ;
2749 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2750 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2751 } else
2752 #endif
2753 {
2754 regBwOpMode = BW_OPMODE_20MHZ;
2755 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2756 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2757 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2758 }
2759 break;
2760 case WIRELESS_MODE_N_24G:
2761 /* It support CCK rate by default. CCK rate will be filtered
2762 * out only when associated AP does not support it.
2763 */
2764 regBwOpMode = BW_OPMODE_20MHZ;
2765 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2766 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2767 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2768 break;
2769 case WIRELESS_MODE_N_5G:
2770 regBwOpMode = BW_OPMODE_5G;
2771 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2772 RATE_ALL_OFDM_2SS;
2773 regRRSR = RATE_ALL_OFDM_AG;
2774 break;
2775 }
2776
2777 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2778 ratr_value = regRATR;
2779 if (priv->rf_type == RF_1T2R)
2780 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2781 write_nic_dword(dev, RATR0, ratr_value);
2782 write_nic_byte(dev, UFWP, 1);
2783 read_nic_byte(dev, 0x313, ®Tmp);
2784 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2785 write_nic_dword(dev, RRSR, regRRSR);
2786
2787 /* Set Retry Limit here */
2788 write_nic_word(dev, RETRY_LIMIT,
2789 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2790 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2791 /* Set Contention Window here */
2792
2793 /* Set Tx AGC */
2794
2795 /* Set Tx Antenna including Feedback control */
2796
2797 /* Set Auto Rate fallback control */
2798
2799
2800 }
2801
2802
2803 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2804 static bool rtl8192_adapter_start(struct net_device *dev)
2805 {
2806 struct r8192_priv *priv = ieee80211_priv(dev);
2807 u32 dwRegRead = 0;
2808 bool init_status = true;
2809 u8 SECR_value = 0x0;
2810 u8 tmp;
2811
2812 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2813 priv->Rf_Mode = RF_OP_By_SW_3wire;
2814 /* for ASIC power on sequence */
2815 write_nic_byte_E(dev, 0x5f, 0x80);
2816 mdelay(50);
2817 write_nic_byte_E(dev, 0x5f, 0xf0);
2818 write_nic_byte_E(dev, 0x5d, 0x00);
2819 write_nic_byte_E(dev, 0x5e, 0x80);
2820 write_nic_byte(dev, 0x17, 0x37);
2821 mdelay(10);
2822 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2823 /* config CPUReset Register */
2824 /* Firmware Reset or not? */
2825 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2826 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2827 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2828 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2829 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2830 else
2831 RT_TRACE(COMP_ERR,
2832 "ERROR in %s(): undefined firmware state(%d)\n",
2833 __func__, priv->pFirmware->firmware_status);
2834
2835 write_nic_dword(dev, CPU_GEN, dwRegRead);
2836 /* config BB. */
2837 rtl8192_BBConfig(dev);
2838
2839 /* Loopback mode or not */
2840 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2841
2842 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2843 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2844 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2845 CPU_GEN_NO_LOOPBACK_SET;
2846 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2847 dwRegRead |= CPU_CCK_LOOPBACK;
2848 else
2849 RT_TRACE(COMP_ERR,
2850 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2851 __func__, priv->LoopbackMode);
2852
2853 write_nic_dword(dev, CPU_GEN, dwRegRead);
2854
2855 /* after reset cpu, we need wait for a seconds to write in register. */
2856 udelay(500);
2857
2858 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2859 read_nic_byte_E(dev, 0x5f, &tmp);
2860 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2861
2862 /* Set Hardware */
2863 rtl8192_hwconfig(dev);
2864
2865 /* turn on Tx/Rx */
2866 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2867
2868 /* set IDR0 here */
2869 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2870 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2871
2872 /* set RCR */
2873 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2874
2875 /* Initialize Number of Reserved Pages in Firmware Queue */
2876 write_nic_dword(dev, RQPN1,
2877 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2878 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2879 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2880 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2881 write_nic_dword(dev, RQPN2,
2882 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2883 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2884 write_nic_dword(dev, RQPN3,
2885 APPLIED_RESERVED_QUEUE_IN_FW |
2886 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2887 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2888
2889 /* Set AckTimeout */
2890 /* TODO: (it value is only for FPGA version). need to be changed!! */
2891 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2892
2893 if (priv->ResetProgress == RESET_TYPE_NORESET)
2894 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2895 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2896 CamResetAllEntry(dev);
2897 SECR_value |= SCR_TxEncEnable;
2898 SECR_value |= SCR_RxDecEnable;
2899 SECR_value |= SCR_NoSKMC;
2900 write_nic_byte(dev, SECR, SECR_value);
2901 }
2902
2903 /* Beacon related */
2904 write_nic_word(dev, ATIMWND, 2);
2905 write_nic_word(dev, BCN_INTERVAL, 100);
2906
2907 #define DEFAULT_EDCA 0x005e4332
2908 {
2909 int i;
2910
2911 for (i = 0; i < QOS_QUEUE_NUM; i++)
2912 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2913 }
2914
2915 rtl8192_phy_configmac(dev);
2916
2917 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2918 rtl8192_phy_getTxPower(dev);
2919 rtl8192_phy_setTxPower(dev, priv->chan);
2920 }
2921
2922 /* Firmware download */
2923 init_status = init_firmware(dev);
2924 if (!init_status) {
2925 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2926 __func__);
2927 return init_status;
2928 }
2929 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2930
2931 #ifdef TO_DO_LIST
2932 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2933 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2934 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2935 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2936 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2937 /* Those actions will be discard in MgntActSet_RF_State
2938 * because of the same state
2939 */
2940 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2941 PHY_SetRFReg(Adapter,
2942 (RF90_RADIO_PATH_E)eRFPath,
2943 0x4, 0xC00, 0x0);
2944 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2945 /* H/W or S/W RF OFF before sleep. */
2946 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2947 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2948 pMgntInfo->RfOffReason));
2949 MgntActSet_RF_State(Adapter,
2950 eRfOff,
2951 pMgntInfo->RfOffReason);
2952 } else {
2953 pHalData->eRFPowerState = eRfOn;
2954 pMgntInfo->RfOffReason = 0;
2955 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2956 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2957 }
2958 } else {
2959 if (pHalData->eRFPowerState == eRfOff) {
2960 MgntActSet_RF_State(Adapter,
2961 eRfOff,
2962 pMgntInfo->RfOffReason);
2963 /* Those actions will be discard in MgntActSet_RF_State
2964 * because of the same state
2965 */
2966 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2967 PHY_SetRFReg(Adapter,
2968 (RF90_RADIO_PATH_E)eRFPath,
2969 0x4, 0xC00, 0x0);
2970 }
2971 }
2972 #endif
2973 /* config RF. */
2974 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2975 rtl8192_phy_RFConfig(dev);
2976 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2977 }
2978
2979
2980 if (priv->ieee80211->FwRWRF)
2981 /* We can force firmware to do RF-R/W */
2982 priv->Rf_Mode = RF_OP_By_FW;
2983 else
2984 priv->Rf_Mode = RF_OP_By_SW_3wire;
2985
2986
2987 rtl8192_phy_updateInitGain(dev);
2988 /*--set CCK and OFDM Block "ON"--*/
2989 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2990 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2991
2992 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2993 /* if D or C cut */
2994 u8 tmpvalue;
2995
2996 read_nic_byte(dev, 0x301, &tmpvalue);
2997 if (tmpvalue == 0x03) {
2998 priv->bDcut = true;
2999 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
3000 } else {
3001 priv->bDcut = false;
3002 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
3003 }
3004 dm_initialize_txpower_tracking(dev);
3005
3006 if (priv->bDcut) {
3007 u32 i, TempCCk;
3008 u32 tmpRegA = rtl8192_QueryBBReg(dev,
3009 rOFDM0_XATxIQImbalance,
3010 bMaskDWord);
3011
3012 for (i = 0; i < TxBBGainTableLength; i++) {
3013 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
3014 priv->rfa_txpowertrackingindex = (u8)i;
3015 priv->rfa_txpowertrackingindex_real =
3016 (u8)i;
3017 priv->rfa_txpowertracking_default =
3018 priv->rfa_txpowertrackingindex;
3019 break;
3020 }
3021 }
3022
3023 TempCCk = rtl8192_QueryBBReg(dev,
3024 rCCK0_TxFilter1,
3025 bMaskByte2);
3026
3027 for (i = 0; i < CCKTxBBGainTableLength; i++) {
3028
3029 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
3030 priv->cck_present_attentuation_20Mdefault = (u8)i;
3031 break;
3032 }
3033 }
3034 priv->cck_present_attentuation_40Mdefault = 0;
3035 priv->cck_present_attentuation_difference = 0;
3036 priv->cck_present_attentuation =
3037 priv->cck_present_attentuation_20Mdefault;
3038
3039 }
3040 }
3041 write_nic_byte(dev, 0x87, 0x0);
3042
3043
3044 return init_status;
3045 }
3046
3047 /* this configures registers for beacon tx and enables it via
3048 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
3049 * be used to stop beacon transmission
3050 */
3051 /***************************************************************************
3052 -------------------------------NET STUFF---------------------------
3053 ***************************************************************************/
3054
rtl8192_stats(struct net_device * dev)3055 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3056 {
3057 struct r8192_priv *priv = ieee80211_priv(dev);
3058
3059 return &priv->ieee80211->stats;
3060 }
3061
HalTxCheckStuck819xUsb(struct net_device * dev)3062 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3063 {
3064 struct r8192_priv *priv = ieee80211_priv(dev);
3065 u16 RegTxCounter;
3066 bool bStuck = false;
3067
3068 read_nic_word(dev, 0x128, &RegTxCounter);
3069 RT_TRACE(COMP_RESET,
3070 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3071 RegTxCounter, priv->TxCounter);
3072 if (priv->TxCounter == RegTxCounter)
3073 bStuck = true;
3074
3075 priv->TxCounter = RegTxCounter;
3076
3077 return bStuck;
3078 }
3079
3080 /*
3081 * <Assumption: RT_TX_SPINLOCK is acquired.>
3082 * First added: 2006.11.19 by emily
3083 */
TxCheckStuck(struct net_device * dev)3084 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3085 {
3086 struct r8192_priv *priv = ieee80211_priv(dev);
3087 u8 QueueID;
3088 bool bCheckFwTxCnt = false;
3089
3090 /* Decide such threshold according to current power save mode */
3091
3092 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3093 if (QueueID == TXCMD_QUEUE)
3094 continue;
3095 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3096 continue;
3097
3098 bCheckFwTxCnt = true;
3099 }
3100 if (bCheckFwTxCnt) {
3101 if (HalTxCheckStuck819xUsb(dev)) {
3102 RT_TRACE(COMP_RESET,
3103 "TxCheckStuck(): Fw indicates no Tx condition!\n");
3104 return RESET_TYPE_SILENT;
3105 }
3106 }
3107 return RESET_TYPE_NORESET;
3108 }
3109
HalRxCheckStuck819xUsb(struct net_device * dev)3110 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3111 {
3112 u16 RegRxCounter;
3113 struct r8192_priv *priv = ieee80211_priv(dev);
3114 bool bStuck = false;
3115 static u8 rx_chk_cnt;
3116
3117 read_nic_word(dev, 0x130, &RegRxCounter);
3118 RT_TRACE(COMP_RESET,
3119 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3120 RegRxCounter, priv->RxCounter);
3121 /* If rssi is small, we should check rx for long time because of bad rx.
3122 * or maybe it will continuous silent reset every 2 seconds.
3123 */
3124 rx_chk_cnt++;
3125 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3126 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3127 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3128 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3129 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3130 if (rx_chk_cnt < 2)
3131 return bStuck;
3132
3133 rx_chk_cnt = 0;
3134 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3135 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3136 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3137 if (rx_chk_cnt < 4)
3138 return bStuck;
3139
3140 rx_chk_cnt = 0;
3141 } else {
3142 if (rx_chk_cnt < 8)
3143 return bStuck;
3144
3145 rx_chk_cnt = 0;
3146 }
3147
3148 if (priv->RxCounter == RegRxCounter)
3149 bStuck = true;
3150
3151 priv->RxCounter = RegRxCounter;
3152
3153 return bStuck;
3154 }
3155
RxCheckStuck(struct net_device * dev)3156 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3157 {
3158 struct r8192_priv *priv = ieee80211_priv(dev);
3159 bool bRxCheck = false;
3160
3161 if (priv->IrpPendingCount > 1)
3162 bRxCheck = true;
3163
3164 if (bRxCheck) {
3165 if (HalRxCheckStuck819xUsb(dev)) {
3166 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3167 return RESET_TYPE_SILENT;
3168 }
3169 }
3170 return RESET_TYPE_NORESET;
3171 }
3172
3173
3174 /**
3175 * This function is called by Checkforhang to check whether we should
3176 * ask OS to reset driver
3177 *
3178 * \param pAdapter The adapter context for this miniport
3179 *
3180 * Note:NIC with USB interface sholud not call this function because we
3181 * cannot scan descriptor to judge whether there is tx stuck.
3182 * Note: This function may be required to be rewrite for Vista OS.
3183 * <<<Assumption: Tx spinlock has been acquired >>>
3184 *
3185 * 8185 and 8185b does not implement this function.
3186 */
rtl819x_ifcheck_resetornot(struct net_device * dev)3187 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3188 {
3189 struct r8192_priv *priv = ieee80211_priv(dev);
3190 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3191 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3192 RT_RF_POWER_STATE rfState;
3193
3194 rfState = priv->ieee80211->eRFPowerState;
3195
3196 TxResetType = TxCheckStuck(dev);
3197 if (rfState != eRfOff ||
3198 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3199 /* If driver is in the status of firmware download failure,
3200 * driver skips RF initialization and RF is in turned off
3201 * state. Driver should check whether Rx stuck and do silent
3202 * reset. And if driver is in firmware download failure status,
3203 * driver should initialize RF in the following silent reset
3204 * procedure
3205 *
3206 * Driver should not check RX stuck in IBSS mode because it is
3207 * required to set Check BSSID in order to send beacon,
3208 * however, if check BSSID is set, STA cannot hear any packet
3209 * at all.
3210 */
3211 RxResetType = RxCheckStuck(dev);
3212 }
3213 if (TxResetType == RESET_TYPE_NORMAL ||
3214 RxResetType == RESET_TYPE_NORMAL) {
3215 return RESET_TYPE_NORMAL;
3216 } else if (TxResetType == RESET_TYPE_SILENT ||
3217 RxResetType == RESET_TYPE_SILENT) {
3218 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3219 return RESET_TYPE_SILENT;
3220 } else {
3221 return RESET_TYPE_NORESET;
3222 }
3223
3224 }
3225
3226 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3227 static int _rtl8192_up(struct net_device *dev);
3228 static int rtl8192_close(struct net_device *dev);
3229
3230
3231
CamRestoreAllEntry(struct net_device * dev)3232 static void CamRestoreAllEntry(struct net_device *dev)
3233 {
3234 u8 EntryId = 0;
3235 struct r8192_priv *priv = ieee80211_priv(dev);
3236 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3237
3238 static u8 CAM_CONST_ADDR[4][6] = {
3239 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3240 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3241 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3242 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3243 static u8 CAM_CONST_BROAD[] = {
3244 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3245
3246 RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
3247
3248
3249 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3250 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3251
3252 for (EntryId = 0; EntryId < 4; EntryId++) {
3253 MacAddr = CAM_CONST_ADDR[EntryId];
3254 setKey(dev, EntryId, EntryId,
3255 priv->ieee80211->pairwise_key_type,
3256 MacAddr, 0, NULL);
3257 }
3258
3259 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3260
3261 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3262 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3263 (u8 *)dev->dev_addr, 0, NULL);
3264 else
3265 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3266 MacAddr, 0, NULL);
3267 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3268
3269 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3270 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3271 (u8 *)dev->dev_addr, 0, NULL);
3272 else
3273 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3274 MacAddr, 0, NULL);
3275 }
3276
3277
3278
3279 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3280 MacAddr = CAM_CONST_BROAD;
3281 for (EntryId = 1; EntryId < 4; EntryId++) {
3282 setKey(dev, EntryId, EntryId,
3283 priv->ieee80211->group_key_type,
3284 MacAddr, 0, NULL);
3285 }
3286 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3287 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3288 CAM_CONST_ADDR[0], 0, NULL);
3289 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3290 MacAddr = CAM_CONST_BROAD;
3291 for (EntryId = 1; EntryId < 4; EntryId++) {
3292 setKey(dev, EntryId, EntryId,
3293 priv->ieee80211->group_key_type,
3294 MacAddr, 0, NULL);
3295 }
3296
3297 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3298 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3299 CAM_CONST_ADDR[0], 0, NULL);
3300 }
3301 }
3302 /* This function is used to fix Tx/Rx stop bug temporarily.
3303 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3304 * The method checking Tx/Rx stuck of this function is supported by FW,
3305 * which reports Tx and Rx counter to register 0x128 and 0x130.
3306 */
rtl819x_ifsilentreset(struct net_device * dev)3307 static void rtl819x_ifsilentreset(struct net_device *dev)
3308 {
3309 struct r8192_priv *priv = ieee80211_priv(dev);
3310 u8 reset_times = 0;
3311 int reset_status = 0;
3312 struct ieee80211_device *ieee = priv->ieee80211;
3313
3314
3315 /* If we need to check CCK stop, please uncomment this line. */
3316 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3317
3318 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3319 RESET_START:
3320
3321 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3322
3323 /* Set the variable for reset. */
3324 priv->ResetProgress = RESET_TYPE_SILENT;
3325 down(&priv->wx_sem);
3326 if (priv->up == 0) {
3327 RT_TRACE(COMP_ERR,
3328 "%s():the driver is not up! return\n",
3329 __func__);
3330 up(&priv->wx_sem);
3331 return;
3332 }
3333 priv->up = 0;
3334 RT_TRACE(COMP_RESET,
3335 "%s():======>start to down the driver\n",
3336 __func__);
3337
3338 rtl8192_rtx_disable(dev);
3339 rtl8192_cancel_deferred_work(priv);
3340 deinit_hal_dm(dev);
3341 del_timer_sync(&priv->watch_dog_timer);
3342
3343 ieee->sync_scan_hurryup = 1;
3344 if (ieee->state == IEEE80211_LINKED) {
3345 down(&ieee->wx_sem);
3346 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3347 ieee80211_stop_send_beacons(priv->ieee80211);
3348 del_timer_sync(&ieee->associate_timer);
3349 cancel_delayed_work(&ieee->associate_retry_wq);
3350 ieee80211_stop_scan(ieee);
3351 netif_carrier_off(dev);
3352 up(&ieee->wx_sem);
3353 } else {
3354 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3355 ieee80211_softmac_stop_protocol(priv->ieee80211);
3356 }
3357 up(&priv->wx_sem);
3358 RT_TRACE(COMP_RESET,
3359 "%s():<==========down process is finished\n",
3360 __func__);
3361 RT_TRACE(COMP_RESET,
3362 "%s():===========>start up the driver\n",
3363 __func__);
3364 reset_status = _rtl8192_up(dev);
3365
3366 RT_TRACE(COMP_RESET,
3367 "%s():<===========up process is finished\n",
3368 __func__);
3369 if (reset_status == -EAGAIN) {
3370 if (reset_times < 3) {
3371 reset_times++;
3372 goto RESET_START;
3373 } else {
3374 RT_TRACE(COMP_ERR,
3375 " ERR!!! %s(): Reset Failed!!\n",
3376 __func__);
3377 }
3378 }
3379 ieee->is_silent_reset = 1;
3380 EnableHWSecurityConfig8192(dev);
3381 if (ieee->state == IEEE80211_LINKED &&
3382 ieee->iw_mode == IW_MODE_INFRA) {
3383 ieee->set_chan(ieee->dev,
3384 ieee->current_network.channel);
3385
3386 queue_work(ieee->wq, &ieee->associate_complete_wq);
3387
3388 } else if (ieee->state == IEEE80211_LINKED &&
3389 ieee->iw_mode == IW_MODE_ADHOC) {
3390 ieee->set_chan(ieee->dev,
3391 ieee->current_network.channel);
3392 ieee->link_change(ieee->dev);
3393
3394 ieee80211_start_send_beacons(ieee);
3395
3396 if (ieee->data_hard_resume)
3397 ieee->data_hard_resume(ieee->dev);
3398 netif_carrier_on(ieee->dev);
3399 }
3400
3401 CamRestoreAllEntry(dev);
3402
3403 priv->ResetProgress = RESET_TYPE_NORESET;
3404 priv->reset_count++;
3405
3406 priv->bForcedSilentReset = false;
3407 priv->bResetInProgress = false;
3408
3409 /* For test --> force write UFWP. */
3410 write_nic_byte(dev, UFWP, 1);
3411 RT_TRACE(COMP_RESET,
3412 "Reset finished!! ====>[%d]\n",
3413 priv->reset_count);
3414 }
3415 }
3416
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3417 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3418 u32 *TotalRxDataNum)
3419 {
3420 u16 SlotIndex;
3421 u16 i;
3422
3423 *TotalRxBcnNum = 0;
3424 *TotalRxDataNum = 0;
3425
3426 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3427 (priv->ieee80211->LinkDetectInfo.SlotNum);
3428 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3429 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3430 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3431 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3432 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3433 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3434 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3435 }
3436 }
3437
3438
rtl819x_watchdog_wqcallback(struct work_struct * work)3439 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3440 {
3441 struct delayed_work *dwork = container_of(work,
3442 struct delayed_work, work);
3443 struct r8192_priv *priv = container_of(dwork,
3444 struct r8192_priv, watch_dog_wq);
3445 struct net_device *dev = priv->ieee80211->dev;
3446 struct ieee80211_device *ieee = priv->ieee80211;
3447 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3448 static u8 check_reset_cnt;
3449 bool bBusyTraffic = false;
3450 u32 TotalRxBcnNum = 0;
3451 u32 TotalRxDataNum = 0;
3452
3453 if (!priv->up)
3454 return;
3455 hal_dm_watchdog(dev);
3456
3457 /* to get busy traffic condition */
3458 if (ieee->state == IEEE80211_LINKED) {
3459 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3460 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3461 bBusyTraffic = true;
3462 }
3463 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3464 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3465 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3466 }
3467 /* for AP roaming */
3468 if (priv->ieee80211->state == IEEE80211_LINKED &&
3469 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3470
3471 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3472 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3473 #ifdef TODO
3474 if (rfState == eRfOff)
3475 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3476 #endif
3477 netdev_dbg(dev,
3478 "===>%s(): AP is power off, connect another one\n",
3479 __func__);
3480 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3481 notify_wx_assoc_event(priv->ieee80211);
3482 RemovePeerTS(priv->ieee80211,
3483 priv->ieee80211->current_network.bssid);
3484 priv->ieee80211->link_change(dev);
3485 queue_work(priv->ieee80211->wq,
3486 &priv->ieee80211->associate_procedure_wq);
3487
3488 }
3489 }
3490 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3491 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3492 /* check if reset the driver */
3493 if (check_reset_cnt++ >= 3) {
3494 ResetType = rtl819x_ifcheck_resetornot(dev);
3495 check_reset_cnt = 3;
3496 }
3497 /* This is control by OID set in Pomelo */
3498 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3499 (priv->bForcedSilentReset ||
3500 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3501 RT_TRACE(COMP_RESET,
3502 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3503 __func__, priv->force_reset, priv->ResetProgress,
3504 priv->bForcedSilentReset,
3505 priv->bDisableNormalResetCheck, ResetType);
3506 rtl819x_ifsilentreset(dev);
3507 }
3508 priv->force_reset = false;
3509 priv->bForcedSilentReset = false;
3510 priv->bResetInProgress = false;
3511 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3512
3513 }
3514
watch_dog_timer_callback(unsigned long data)3515 static void watch_dog_timer_callback(unsigned long data)
3516 {
3517 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3518
3519 queue_delayed_work(priv->priv_wq, &priv->watch_dog_wq, 0);
3520 mod_timer(&priv->watch_dog_timer,
3521 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3522 }
_rtl8192_up(struct net_device * dev)3523 static int _rtl8192_up(struct net_device *dev)
3524 {
3525 struct r8192_priv *priv = ieee80211_priv(dev);
3526 int init_status = 0;
3527
3528 priv->up = 1;
3529 priv->ieee80211->ieee_up = 1;
3530 RT_TRACE(COMP_INIT, "Bringing up iface");
3531 init_status = rtl8192_adapter_start(dev);
3532 if (!init_status) {
3533 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3534 __func__);
3535 priv->up = priv->ieee80211->ieee_up = 0;
3536 return -EAGAIN;
3537 }
3538 RT_TRACE(COMP_INIT, "start adapter finished\n");
3539 rtl8192_rx_enable(dev);
3540 if (priv->ieee80211->state != IEEE80211_LINKED)
3541 ieee80211_softmac_start_protocol(priv->ieee80211);
3542 ieee80211_reset_queue(priv->ieee80211);
3543 watch_dog_timer_callback((unsigned long)dev);
3544 if (!netif_queue_stopped(dev))
3545 netif_start_queue(dev);
3546 else
3547 netif_wake_queue(dev);
3548
3549 return 0;
3550 }
3551
3552
rtl8192_open(struct net_device * dev)3553 static int rtl8192_open(struct net_device *dev)
3554 {
3555 struct r8192_priv *priv = ieee80211_priv(dev);
3556 int ret;
3557
3558 down(&priv->wx_sem);
3559 ret = rtl8192_up(dev);
3560 up(&priv->wx_sem);
3561 return ret;
3562
3563 }
3564
3565
rtl8192_up(struct net_device * dev)3566 int rtl8192_up(struct net_device *dev)
3567 {
3568 struct r8192_priv *priv = ieee80211_priv(dev);
3569
3570 if (priv->up == 1)
3571 return -1;
3572
3573 return _rtl8192_up(dev);
3574 }
3575
3576
rtl8192_close(struct net_device * dev)3577 static int rtl8192_close(struct net_device *dev)
3578 {
3579 struct r8192_priv *priv = ieee80211_priv(dev);
3580 int ret;
3581
3582 down(&priv->wx_sem);
3583
3584 ret = rtl8192_down(dev);
3585
3586 up(&priv->wx_sem);
3587
3588 return ret;
3589
3590 }
3591
rtl8192_down(struct net_device * dev)3592 int rtl8192_down(struct net_device *dev)
3593 {
3594 struct r8192_priv *priv = ieee80211_priv(dev);
3595 int i;
3596
3597 if (priv->up == 0)
3598 return -1;
3599
3600 priv->up = 0;
3601 priv->ieee80211->ieee_up = 0;
3602 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3603 /* FIXME */
3604 if (!netif_queue_stopped(dev))
3605 netif_stop_queue(dev);
3606
3607 rtl8192_rtx_disable(dev);
3608
3609 /* Tx related queue release */
3610 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3611 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3612 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3613 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3614
3615 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3616 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3617
3618 /* as cancel_delayed_work will del work->timer, so if work is not
3619 * defined as struct delayed_work, it will corrupt
3620 */
3621 rtl8192_cancel_deferred_work(priv);
3622 deinit_hal_dm(dev);
3623 del_timer_sync(&priv->watch_dog_timer);
3624
3625
3626 ieee80211_softmac_stop_protocol(priv->ieee80211);
3627 memset(&priv->ieee80211->current_network, 0,
3628 offsetof(struct ieee80211_network, list));
3629 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3630
3631 return 0;
3632 }
3633
3634
rtl8192_commit(struct net_device * dev)3635 void rtl8192_commit(struct net_device *dev)
3636 {
3637 struct r8192_priv *priv = ieee80211_priv(dev);
3638 int reset_status = 0;
3639
3640 if (priv->up == 0)
3641 return;
3642 priv->up = 0;
3643
3644 rtl8192_cancel_deferred_work(priv);
3645 del_timer_sync(&priv->watch_dog_timer);
3646
3647 ieee80211_softmac_stop_protocol(priv->ieee80211);
3648
3649 rtl8192_rtx_disable(dev);
3650 reset_status = _rtl8192_up(dev);
3651
3652 }
3653
rtl8192_restart(struct work_struct * work)3654 static void rtl8192_restart(struct work_struct *work)
3655 {
3656 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3657 reset_wq);
3658 struct net_device *dev = priv->ieee80211->dev;
3659
3660 down(&priv->wx_sem);
3661
3662 rtl8192_commit(dev);
3663
3664 up(&priv->wx_sem);
3665 }
3666
r8192_set_multicast(struct net_device * dev)3667 static void r8192_set_multicast(struct net_device *dev)
3668 {
3669 struct r8192_priv *priv = ieee80211_priv(dev);
3670 short promisc;
3671
3672 /* FIXME FIXME */
3673
3674 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3675
3676 if (promisc != priv->promisc)
3677
3678 priv->promisc = promisc;
3679 }
3680
3681
r8192_set_mac_adr(struct net_device * dev,void * mac)3682 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3683 {
3684 struct r8192_priv *priv = ieee80211_priv(dev);
3685 struct sockaddr *addr = mac;
3686
3687 down(&priv->wx_sem);
3688
3689 ether_addr_copy(dev->dev_addr, addr->sa_data);
3690
3691 schedule_work(&priv->reset_wq);
3692 up(&priv->wx_sem);
3693
3694 return 0;
3695 }
3696
3697 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3698 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3699 {
3700 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3701 struct iwreq *wrq = (struct iwreq *)rq;
3702 int ret = -1;
3703 struct ieee80211_device *ieee = priv->ieee80211;
3704 u32 key[4];
3705 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3706 struct iw_point *p = &wrq->u.data;
3707 struct ieee_param *ipw = NULL;
3708
3709 down(&priv->wx_sem);
3710
3711
3712 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3713 ret = -EINVAL;
3714 goto out;
3715 }
3716
3717 ipw = memdup_user(p->pointer, p->length);
3718 if (IS_ERR(ipw)) {
3719 ret = PTR_ERR(ipw);
3720 goto out;
3721 }
3722
3723 switch (cmd) {
3724 case RTL_IOCTL_WPA_SUPPLICANT:
3725 /* parse here for HW security */
3726 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3727 if (ipw->u.crypt.set_tx) {
3728 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3729 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3730 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3731 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3732 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3733 if (ipw->u.crypt.key_len == 13)
3734 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3735 else if (ipw->u.crypt.key_len == 5)
3736 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3737 } else {
3738 ieee->pairwise_key_type = KEY_TYPE_NA;
3739 }
3740
3741 if (ieee->pairwise_key_type) {
3742 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3743 EnableHWSecurityConfig8192(dev);
3744 /* We fill both index entry and 4th
3745 * entry for pairwise key as in IPW
3746 * interface, adhoc will only get here,
3747 * so we need index entry for its
3748 * default key serching!
3749 */
3750 setKey(dev, 4, ipw->u.crypt.idx,
3751 ieee->pairwise_key_type,
3752 (u8 *)ieee->ap_mac_addr,
3753 0, key);
3754 if (ieee->auth_mode != 2)
3755 setKey(dev, ipw->u.crypt.idx,
3756 ipw->u.crypt.idx,
3757 ieee->pairwise_key_type,
3758 (u8 *)ieee->ap_mac_addr,
3759 0, key);
3760 }
3761 } else {
3762 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3763 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3764 ieee->group_key_type = KEY_TYPE_CCMP;
3765 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3766 ieee->group_key_type = KEY_TYPE_TKIP;
3767 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3768 if (ipw->u.crypt.key_len == 13)
3769 ieee->group_key_type = KEY_TYPE_WEP104;
3770 else if (ipw->u.crypt.key_len == 5)
3771 ieee->group_key_type = KEY_TYPE_WEP40;
3772 } else {
3773 ieee->group_key_type = KEY_TYPE_NA;
3774 }
3775
3776 if (ieee->group_key_type) {
3777 setKey(dev, ipw->u.crypt.idx,
3778 /* KeyIndex */
3779 ipw->u.crypt.idx,
3780 /* KeyType */
3781 ieee->group_key_type,
3782 /* MacAddr */
3783 broadcast_addr,
3784 /* DefaultKey */
3785 0,
3786 /* KeyContent */
3787 key);
3788 }
3789 }
3790 }
3791 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3792 &wrq->u.data);
3793 break;
3794
3795 default:
3796 ret = -EOPNOTSUPP;
3797 break;
3798 }
3799 kfree(ipw);
3800 ipw = NULL;
3801 out:
3802 up(&priv->wx_sem);
3803 return ret;
3804 }
3805
HwRateToMRate90(bool bIsHT,u8 rate)3806 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3807 {
3808 u8 ret_rate = 0xff;
3809
3810 if (!bIsHT) {
3811 switch (rate) {
3812 case DESC90_RATE1M:
3813 ret_rate = MGN_1M;
3814 break;
3815 case DESC90_RATE2M:
3816 ret_rate = MGN_2M;
3817 break;
3818 case DESC90_RATE5_5M:
3819 ret_rate = MGN_5_5M;
3820 break;
3821 case DESC90_RATE11M:
3822 ret_rate = MGN_11M;
3823 break;
3824 case DESC90_RATE6M:
3825 ret_rate = MGN_6M;
3826 break;
3827 case DESC90_RATE9M:
3828 ret_rate = MGN_9M;
3829 break;
3830 case DESC90_RATE12M:
3831 ret_rate = MGN_12M;
3832 break;
3833 case DESC90_RATE18M:
3834 ret_rate = MGN_18M;
3835 break;
3836 case DESC90_RATE24M:
3837 ret_rate = MGN_24M;
3838 break;
3839 case DESC90_RATE36M:
3840 ret_rate = MGN_36M;
3841 break;
3842 case DESC90_RATE48M:
3843 ret_rate = MGN_48M;
3844 break;
3845 case DESC90_RATE54M:
3846 ret_rate = MGN_54M;
3847 break;
3848
3849 default:
3850 ret_rate = 0xff;
3851 RT_TRACE(COMP_RECV,
3852 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3853 rate, bIsHT);
3854 break;
3855 }
3856
3857 } else {
3858 switch (rate) {
3859 case DESC90_RATEMCS0:
3860 ret_rate = MGN_MCS0;
3861 break;
3862 case DESC90_RATEMCS1:
3863 ret_rate = MGN_MCS1;
3864 break;
3865 case DESC90_RATEMCS2:
3866 ret_rate = MGN_MCS2;
3867 break;
3868 case DESC90_RATEMCS3:
3869 ret_rate = MGN_MCS3;
3870 break;
3871 case DESC90_RATEMCS4:
3872 ret_rate = MGN_MCS4;
3873 break;
3874 case DESC90_RATEMCS5:
3875 ret_rate = MGN_MCS5;
3876 break;
3877 case DESC90_RATEMCS6:
3878 ret_rate = MGN_MCS6;
3879 break;
3880 case DESC90_RATEMCS7:
3881 ret_rate = MGN_MCS7;
3882 break;
3883 case DESC90_RATEMCS8:
3884 ret_rate = MGN_MCS8;
3885 break;
3886 case DESC90_RATEMCS9:
3887 ret_rate = MGN_MCS9;
3888 break;
3889 case DESC90_RATEMCS10:
3890 ret_rate = MGN_MCS10;
3891 break;
3892 case DESC90_RATEMCS11:
3893 ret_rate = MGN_MCS11;
3894 break;
3895 case DESC90_RATEMCS12:
3896 ret_rate = MGN_MCS12;
3897 break;
3898 case DESC90_RATEMCS13:
3899 ret_rate = MGN_MCS13;
3900 break;
3901 case DESC90_RATEMCS14:
3902 ret_rate = MGN_MCS14;
3903 break;
3904 case DESC90_RATEMCS15:
3905 ret_rate = MGN_MCS15;
3906 break;
3907 case DESC90_RATEMCS32:
3908 ret_rate = 0x80 | 0x20;
3909 break;
3910
3911 default:
3912 ret_rate = 0xff;
3913 RT_TRACE(COMP_RECV,
3914 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3915 rate, bIsHT);
3916 break;
3917 }
3918 }
3919
3920 return ret_rate;
3921 }
3922
3923 /**
3924 * Function: UpdateRxPktTimeStamp
3925 * Overview: Record the TSF time stamp when receiving a packet
3926 *
3927 * Input:
3928 * PADAPTER Adapter
3929 * PRT_RFD pRfd,
3930 *
3931 * Output:
3932 * PRT_RFD pRfd
3933 * (pRfd->Status.TimeStampHigh is updated)
3934 * (pRfd->Status.TimeStampLow is updated)
3935 * Return:
3936 * None
3937 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3938 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3939 struct ieee80211_rx_stats *stats)
3940 {
3941 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3942
3943 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3944 stats->mac_time[0] = priv->LastRxDescTSFLow;
3945 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3946 } else {
3947 priv->LastRxDescTSFLow = stats->mac_time[0];
3948 priv->LastRxDescTSFHigh = stats->mac_time[1];
3949 }
3950 }
3951
3952 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3953 static long rtl819x_translate_todbm(u8 signal_strength_index)
3954 {
3955 long signal_power; /* in dBm. */
3956
3957 /* Translate to dBm (x=0.5y-95). */
3958 signal_power = (long)((signal_strength_index + 1) >> 1);
3959 signal_power -= 95;
3960
3961 return signal_power;
3962 }
3963
3964
3965 /* We can not declare RSSI/EVM total value of sliding window to
3966 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3967 * value will be kept in memory or disk. Declare the value in the adaptor
3968 * and it will be reinitialized when returned from S3/S4.
3969 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3970 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3971 struct ieee80211_rx_stats *pprevious_stats,
3972 struct ieee80211_rx_stats *pcurrent_stats)
3973 {
3974 bool bcheck = false;
3975 u8 rfpath;
3976 u32 nspatial_stream, tmp_val;
3977 static u32 slide_rssi_index, slide_rssi_statistics;
3978 static u32 slide_evm_index, slide_evm_statistics;
3979 static u32 last_rssi, last_evm;
3980
3981 static u32 slide_beacon_adc_pwdb_index;
3982 static u32 slide_beacon_adc_pwdb_statistics;
3983 static u32 last_beacon_adc_pwdb;
3984
3985 struct rtl_80211_hdr_3addr *hdr;
3986 u16 sc;
3987 unsigned int frag, seq;
3988
3989 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3990 sc = le16_to_cpu(hdr->seq_ctl);
3991 frag = WLAN_GET_SEQ_FRAG(sc);
3992 seq = WLAN_GET_SEQ_SEQ(sc);
3993 /* to record the sequence number */
3994 pcurrent_stats->Seq_Num = seq;
3995
3996 /* Check whether we should take the previous packet into accounting */
3997 if (!pprevious_stats->bIsAMPDU) {
3998 /* if previous packet is not aggregated packet */
3999 bcheck = true;
4000 }
4001
4002 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4003 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
4004 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
4005 priv->stats.slide_rssi_total -= last_rssi;
4006 }
4007 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
4008
4009 priv->stats.slide_signal_strength[slide_rssi_index++] =
4010 pprevious_stats->SignalStrength;
4011 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
4012 slide_rssi_index = 0;
4013
4014 /* <1> Showed on UI for user, in dbm */
4015 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
4016 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
4017 pcurrent_stats->rssi = priv->stats.signal_strength;
4018
4019 /* If the previous packet does not match the criteria, neglect it */
4020 if (!pprevious_stats->bPacketMatchBSSID) {
4021 if (!pprevious_stats->bToSelfBA)
4022 return;
4023 }
4024
4025 if (!bcheck)
4026 return;
4027
4028
4029 /* only rtl8190 supported
4030 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
4031 */
4032
4033 /* Check RSSI */
4034 priv->stats.num_process_phyinfo++;
4035
4036 /* record the general signal strength to the sliding window. */
4037
4038
4039 /* <2> Showed on UI for engineering
4040 * hardware does not provide rssi information for each rf path in CCK
4041 */
4042 if (!pprevious_stats->bIsCCK &&
4043 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
4044 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
4045 if (!rtl8192_phy_CheckIsLegalRFPath(
4046 priv->ieee80211->dev, rfpath))
4047 continue;
4048
4049 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
4050 priv->stats.rx_rssi_percentage[rfpath] =
4051 pprevious_stats->RxMIMOSignalStrength[rfpath];
4052 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
4053 priv->stats.rx_rssi_percentage[rfpath] =
4054 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4055 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4056 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4057 } else {
4058 priv->stats.rx_rssi_percentage[rfpath] =
4059 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4060 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4061 }
4062 RT_TRACE(COMP_DBG,
4063 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4064 priv->stats.rx_rssi_percentage[rfpath]);
4065 }
4066 }
4067
4068
4069 /* Check PWDB. */
4070 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4071 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4072 pprevious_stats->RxPWDBAll);
4073
4074 if (pprevious_stats->bPacketBeacon) {
4075 /* record the beacon pwdb to the sliding window. */
4076 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4077 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4078 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4079 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4080 }
4081 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4082 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4083 slide_beacon_adc_pwdb_index++;
4084 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4085 slide_beacon_adc_pwdb_index = 0;
4086 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4087 if (pprevious_stats->RxPWDBAll >= 3)
4088 pprevious_stats->RxPWDBAll -= 3;
4089 }
4090
4091 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4092 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4093 pprevious_stats->RxPWDBAll);
4094
4095
4096 if (pprevious_stats->bPacketToSelf ||
4097 pprevious_stats->bPacketBeacon ||
4098 pprevious_stats->bToSelfBA) {
4099 if (priv->undecorated_smoothed_pwdb < 0)
4100 /* initialize */
4101 priv->undecorated_smoothed_pwdb =
4102 pprevious_stats->RxPWDBAll;
4103 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4104 priv->undecorated_smoothed_pwdb =
4105 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4106 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4107 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4108 } else {
4109 priv->undecorated_smoothed_pwdb =
4110 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4111 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4112 }
4113
4114 }
4115
4116 /* Check EVM */
4117 /* record the general EVM to the sliding window. */
4118 if (pprevious_stats->SignalQuality) {
4119 if (pprevious_stats->bPacketToSelf ||
4120 pprevious_stats->bPacketBeacon ||
4121 pprevious_stats->bToSelfBA) {
4122 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4123 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4124 last_evm = priv->stats.slide_evm[slide_evm_index];
4125 priv->stats.slide_evm_total -= last_evm;
4126 }
4127
4128 priv->stats.slide_evm_total +=
4129 pprevious_stats->SignalQuality;
4130
4131 priv->stats.slide_evm[slide_evm_index++] =
4132 pprevious_stats->SignalQuality;
4133 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4134 slide_evm_index = 0;
4135
4136 /* <1> Showed on UI for user, in percentage. */
4137 tmp_val = priv->stats.slide_evm_total /
4138 slide_evm_statistics;
4139 priv->stats.signal_quality = tmp_val;
4140 /* Showed on UI for user in Windows Vista,
4141 * for Link quality.
4142 */
4143 priv->stats.last_signal_strength_inpercent = tmp_val;
4144 }
4145
4146 /* <2> Showed on UI for engineering */
4147 if (pprevious_stats->bPacketToSelf ||
4148 pprevious_stats->bPacketBeacon ||
4149 pprevious_stats->bToSelfBA) {
4150 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4151 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4152 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4153 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4154 priv->stats.rx_evm_percentage[nspatial_stream] =
4155 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4156 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4157 }
4158 }
4159 }
4160 }
4161
4162
4163 }
4164
4165 /*-----------------------------------------------------------------------------
4166 * Function: rtl819x_query_rxpwrpercentage()
4167 *
4168 * Overview:
4169 *
4170 * Input: char antpower
4171 *
4172 * Output: NONE
4173 *
4174 * Return: 0-100 percentage
4175 *---------------------------------------------------------------------------*/
rtl819x_query_rxpwrpercentage(char antpower)4176 static u8 rtl819x_query_rxpwrpercentage(char antpower)
4177 {
4178 if ((antpower <= -100) || (antpower >= 20))
4179 return 0;
4180 else if (antpower >= 0)
4181 return 100;
4182 else
4183 return 100 + antpower;
4184
4185 } /* QueryRxPwrPercentage */
4186
rtl819x_evm_dbtopercentage(char value)4187 static u8 rtl819x_evm_dbtopercentage(char value)
4188 {
4189 char ret_val;
4190
4191 ret_val = value;
4192
4193 if (ret_val >= 0)
4194 ret_val = 0;
4195 if (ret_val <= -33)
4196 ret_val = -33;
4197 ret_val = 0 - ret_val;
4198 ret_val *= 3;
4199 if (ret_val == 99)
4200 ret_val = 100;
4201 return ret_val;
4202 }
4203 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)4204 static long rtl819x_signal_scale_mapping(long currsig)
4205 {
4206 long retsig;
4207
4208 /* Step 1. Scale mapping. */
4209 if (currsig >= 61 && currsig <= 100)
4210 retsig = 90 + ((currsig - 60) / 4);
4211 else if (currsig >= 41 && currsig <= 60)
4212 retsig = 78 + ((currsig - 40) / 2);
4213 else if (currsig >= 31 && currsig <= 40)
4214 retsig = 66 + (currsig - 30);
4215 else if (currsig >= 21 && currsig <= 30)
4216 retsig = 54 + (currsig - 20);
4217 else if (currsig >= 5 && currsig <= 20)
4218 retsig = 42 + (((currsig - 5) * 2) / 3);
4219 else if (currsig == 4)
4220 retsig = 36;
4221 else if (currsig == 3)
4222 retsig = 27;
4223 else if (currsig == 2)
4224 retsig = 18;
4225 else if (currsig == 1)
4226 retsig = 9;
4227 else
4228 retsig = currsig;
4229
4230 return retsig;
4231 }
4232
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)4233 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4234 {
4235 if (pdrvinfo->RxHT)
4236 return false;
4237
4238 switch (pdrvinfo->RxRate) {
4239 case DESC90_RATE1M:
4240 case DESC90_RATE2M:
4241 case DESC90_RATE5_5M:
4242 case DESC90_RATE11M:
4243 return true;
4244 default:
4245 return false;
4246 }
4247 }
4248
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)4249 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4250 struct ieee80211_rx_stats *pstats,
4251 rx_drvinfo_819x_usb *pdrvinfo,
4252 struct ieee80211_rx_stats *precord_stats,
4253 bool bpacket_match_bssid,
4254 bool bpacket_toself,
4255 bool bPacketBeacon,
4256 bool bToSelfBA)
4257 {
4258 phy_sts_ofdm_819xusb_t *pofdm_buf;
4259 phy_sts_cck_819xusb_t *pcck_buf;
4260 phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4261 u8 *prxpkt;
4262 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4263 char rx_pwr[4], rx_pwr_all = 0;
4264 char rx_snrX, rx_evmX;
4265 u8 evm, pwdb_all;
4266 u32 RSSI, total_rssi = 0;
4267 u8 is_cck_rate = 0;
4268 u8 rf_rx_num = 0;
4269 u8 sq;
4270
4271
4272 priv->stats.numqry_phystatus++;
4273
4274 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4275
4276 /* Record it for next packet processing */
4277 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4278 pstats->bPacketMatchBSSID =
4279 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4280 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4281 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4282 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4283 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4284
4285 prxpkt = (u8 *)pdrvinfo;
4286
4287 /* Move pointer to the 16th bytes. Phy status start address. */
4288 prxpkt += sizeof(rx_drvinfo_819x_usb);
4289
4290 /* Initial the cck and ofdm buffer pointer */
4291 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4292 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4293
4294 pstats->RxMIMOSignalQuality[0] = -1;
4295 pstats->RxMIMOSignalQuality[1] = -1;
4296 precord_stats->RxMIMOSignalQuality[0] = -1;
4297 precord_stats->RxMIMOSignalQuality[1] = -1;
4298
4299 if (is_cck_rate) {
4300 /* (1)Hardware does not provide RSSI for CCK */
4301
4302 /* (2)PWDB, Average PWDB cacluated by hardware
4303 * (for rate adaptive)
4304 */
4305 u8 report;
4306
4307 priv->stats.numqry_phystatusCCK++;
4308
4309 if (!priv->bCckHighPower) {
4310 report = pcck_buf->cck_agc_rpt & 0xc0;
4311 report >>= 6;
4312 switch (report) {
4313 case 0x3:
4314 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4315 break;
4316 case 0x2:
4317 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4318 break;
4319 case 0x1:
4320 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4321 break;
4322 case 0x0:
4323 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4324 break;
4325 }
4326 } else {
4327 report = pcck_buf->cck_agc_rpt & 0x60;
4328 report >>= 5;
4329 switch (report) {
4330 case 0x3:
4331 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4332 break;
4333 case 0x2:
4334 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4335 break;
4336 case 0x1:
4337 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4338 break;
4339 case 0x0:
4340 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4341 break;
4342 }
4343 }
4344
4345 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4346 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4347 pstats->RecvSignalPower = pwdb_all;
4348
4349 /* (3) Get Signal Quality (EVM) */
4350
4351 if (pstats->RxPWDBAll > 40) {
4352 sq = 100;
4353 } else {
4354 sq = pcck_buf->sq_rpt;
4355
4356 if (pcck_buf->sq_rpt > 64)
4357 sq = 0;
4358 else if (pcck_buf->sq_rpt < 20)
4359 sq = 100;
4360 else
4361 sq = ((64 - sq) * 100) / 44;
4362 }
4363 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4364 pstats->RxMIMOSignalQuality[0] =
4365 precord_stats->RxMIMOSignalQuality[0] = sq;
4366 pstats->RxMIMOSignalQuality[1] =
4367 precord_stats->RxMIMOSignalQuality[1] = -1;
4368
4369 } else {
4370 priv->stats.numqry_phystatusHT++;
4371
4372 /* (1)Get RSSI for HT rate */
4373 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4374 /* We will judge RF RX path now. */
4375 if (priv->brfpath_rxenable[i])
4376 rf_rx_num++;
4377 else
4378 continue;
4379
4380 if (!rtl8192_phy_CheckIsLegalRFPath(
4381 priv->ieee80211->dev, i))
4382 continue;
4383
4384 rx_pwr[i] =
4385 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4386
4387 /* Get Rx snr value in DB */
4388 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4389 rx_snrX = (char)(tmp_rxsnr);
4390 rx_snrX /= 2;
4391 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4392
4393 /* Translate DBM to percentage. */
4394 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4395 total_rssi += RSSI;
4396
4397 /* Record Signal Strength for next packet */
4398 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4399 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4400 }
4401
4402
4403 /* (2)PWDB, Average PWDB cacluated by hardware
4404 * (for rate adaptive)
4405 */
4406 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4407 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4408
4409 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4410 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4411
4412 /* (3)EVM of HT rate */
4413 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4414 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4415 /* both spatial stream make sense */
4416 max_spatial_stream = 2;
4417 else
4418 /* only spatial stream 1 makes sense */
4419 max_spatial_stream = 1;
4420
4421 for (i = 0; i < max_spatial_stream; i++) {
4422 tmp_rxevm = pofdm_buf->rxevm_X[i];
4423 rx_evmX = (char)(tmp_rxevm);
4424
4425 /* Do not use shift operation like "rx_evmX >>= 1"
4426 * because the compiler of free build environment will
4427 * set the most significant bit to "zero" when doing
4428 * shifting operation which may change a negative value
4429 * to positive one, then the dbm value (which is
4430 * supposed to be negative) is not correct anymore.
4431 */
4432 rx_evmX /= 2; /* dbm */
4433
4434 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4435 if (i == 0)
4436 /* Fill value in RFD, Get the first spatial
4437 * stream only
4438 */
4439 pstats->SignalQuality =
4440 precord_stats->SignalQuality =
4441 (u8)(evm & 0xff);
4442 pstats->RxMIMOSignalQuality[i] =
4443 precord_stats->RxMIMOSignalQuality[i] =
4444 (u8)(evm & 0xff);
4445 }
4446
4447
4448 /* record rx statistics for debug */
4449 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4450 prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4451 &rxsc_sgien_exflg;
4452 if (pdrvinfo->BW) /* 40M channel */
4453 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4454 else /* 20M channel */
4455 priv->stats.received_bwtype[0]++;
4456 }
4457
4458 /* UI BSS List signal strength(in percentage), make it good looking,
4459 * from 0~100. It is assigned to the BSS List in
4460 * GetValueFromBeaconOrProbeRsp().
4461 */
4462 if (is_cck_rate) {
4463 pstats->SignalStrength =
4464 precord_stats->SignalStrength =
4465 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4466 } else {
4467 /* We can judge RX path number now. */
4468 if (rf_rx_num != 0) {
4469 pstats->SignalStrength =
4470 precord_stats->SignalStrength =
4471 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4472 }
4473 }
4474 } /* QueryRxPhyStatus8190Pci */
4475
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4476 static void rtl8192_record_rxdesc_forlateruse(
4477 struct ieee80211_rx_stats *psrc_stats,
4478 struct ieee80211_rx_stats *ptarget_stats)
4479 {
4480 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4481 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4482 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4483 }
4484
4485
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,rx_drvinfo_819x_usb * pdrvinfo)4486 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4487 struct ieee80211_rx_stats *pstats,
4488 rx_drvinfo_819x_usb *pdrvinfo)
4489 {
4490 /* TODO: We must only check packet for current MAC address.
4491 * Not finish
4492 */
4493 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4494 struct net_device *dev = info->dev;
4495 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4496 bool bpacket_match_bssid, bpacket_toself;
4497 bool bPacketBeacon = false, bToSelfBA = false;
4498 static struct ieee80211_rx_stats previous_stats;
4499 struct rtl_80211_hdr_3addr *hdr;
4500 u16 fc, type;
4501
4502 /* Get Signal Quality for only RX data queue (but not command queue) */
4503
4504 u8 *tmp_buf;
4505 u8 *praddr;
4506
4507 /* Get MAC frame start address. */
4508 tmp_buf = (u8 *)skb->data;
4509
4510 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4511 fc = le16_to_cpu(hdr->frame_ctl);
4512 type = WLAN_FC_GET_TYPE(fc);
4513 praddr = hdr->addr1;
4514
4515 /* Check if the received packet is acceptable. */
4516 bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
4517 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4518 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4519 bpacket_toself = bpacket_match_bssid &
4520 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4521
4522 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4523 bPacketBeacon = true;
4524 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4525 if ((eqMacAddr(praddr, dev->dev_addr)))
4526 bToSelfBA = true;
4527 }
4528
4529
4530
4531 if (bpacket_match_bssid)
4532 priv->stats.numpacket_matchbssid++;
4533 if (bpacket_toself)
4534 priv->stats.numpacket_toself++;
4535 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4536 * Because phy information is contained in the last packet of AMPDU
4537 * only, so driver should process phy information of previous packet
4538 */
4539 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4540 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4541 bpacket_match_bssid, bpacket_toself,
4542 bPacketBeacon, bToSelfBA);
4543 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4544
4545 }
4546
4547 /**
4548 * Function: UpdateReceivedRateHistogramStatistics
4549 * Overview: Record the received data rate
4550 *
4551 * Input:
4552 * struct net_device *dev
4553 * struct ieee80211_rx_stats *stats
4554 *
4555 * Output:
4556 *
4557 * (priv->stats.ReceivedRateHistogram[] is updated)
4558 * Return:
4559 * None
4560 */
4561 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4562 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4563 struct ieee80211_rx_stats *stats)
4564 {
4565 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4566 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4567 u32 rcvType = 1;
4568 u32 rateIndex;
4569 /* 1: short preamble/GI, 0: long preamble/GI */
4570 u32 preamble_guardinterval;
4571
4572
4573 if (stats->bCRC)
4574 rcvType = 2;
4575 else if (stats->bICV)
4576 rcvType = 3;
4577
4578 if (stats->bShortPreamble)
4579 preamble_guardinterval = 1; /* short */
4580 else
4581 preamble_guardinterval = 0; /* long */
4582
4583 switch (stats->rate) {
4584 /* CCK rate */
4585 case MGN_1M:
4586 rateIndex = 0;
4587 break;
4588 case MGN_2M:
4589 rateIndex = 1;
4590 break;
4591 case MGN_5_5M:
4592 rateIndex = 2;
4593 break;
4594 case MGN_11M:
4595 rateIndex = 3;
4596 break;
4597 /* Legacy OFDM rate */
4598 case MGN_6M:
4599 rateIndex = 4;
4600 break;
4601 case MGN_9M:
4602 rateIndex = 5;
4603 break;
4604 case MGN_12M:
4605 rateIndex = 6;
4606 break;
4607 case MGN_18M:
4608 rateIndex = 7;
4609 break;
4610 case MGN_24M:
4611 rateIndex = 8;
4612 break;
4613 case MGN_36M:
4614 rateIndex = 9;
4615 break;
4616 case MGN_48M:
4617 rateIndex = 10;
4618 break;
4619 case MGN_54M:
4620 rateIndex = 11;
4621 break;
4622 /* 11n High throughput rate */
4623 case MGN_MCS0:
4624 rateIndex = 12;
4625 break;
4626 case MGN_MCS1:
4627 rateIndex = 13;
4628 break;
4629 case MGN_MCS2:
4630 rateIndex = 14;
4631 break;
4632 case MGN_MCS3:
4633 rateIndex = 15;
4634 break;
4635 case MGN_MCS4:
4636 rateIndex = 16;
4637 break;
4638 case MGN_MCS5:
4639 rateIndex = 17;
4640 break;
4641 case MGN_MCS6:
4642 rateIndex = 18;
4643 break;
4644 case MGN_MCS7:
4645 rateIndex = 19;
4646 break;
4647 case MGN_MCS8:
4648 rateIndex = 20;
4649 break;
4650 case MGN_MCS9:
4651 rateIndex = 21;
4652 break;
4653 case MGN_MCS10:
4654 rateIndex = 22;
4655 break;
4656 case MGN_MCS11:
4657 rateIndex = 23;
4658 break;
4659 case MGN_MCS12:
4660 rateIndex = 24;
4661 break;
4662 case MGN_MCS13:
4663 rateIndex = 25;
4664 break;
4665 case MGN_MCS14:
4666 rateIndex = 26;
4667 break;
4668 case MGN_MCS15:
4669 rateIndex = 27;
4670 break;
4671 default:
4672 rateIndex = 28;
4673 break;
4674 }
4675 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4676 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4677 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4678 }
4679
4680
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4681 static void query_rxdesc_status(struct sk_buff *skb,
4682 struct ieee80211_rx_stats *stats,
4683 bool bIsRxAggrSubframe)
4684 {
4685 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4686 struct net_device *dev = info->dev;
4687 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4688 rx_drvinfo_819x_usb *driver_info = NULL;
4689
4690 /* Get Rx Descriptor Information */
4691 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4692
4693 stats->Length = desc->Length;
4694 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4695 stats->RxBufShift = 0;
4696 stats->bICV = desc->ICV;
4697 stats->bCRC = desc->CRC32;
4698 stats->bHwError = stats->bCRC | stats->bICV;
4699 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4700 stats->Decrypted = !desc->SWDec;
4701
4702 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4703 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4704 stats->bHwError = false;
4705 else
4706 stats->bHwError = stats->bCRC | stats->bICV;
4707
4708 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4709 stats->bHwError |= 1;
4710 /* Get Driver Info */
4711 /* TODO: Need to verify it on FGPA platform
4712 * Driver info are written to the RxBuffer following rx desc
4713 */
4714 if (stats->RxDrvInfoSize != 0) {
4715 driver_info = (rx_drvinfo_819x_usb *)(
4716 skb->data
4717 + sizeof(rx_desc_819x_usb)
4718 + stats->RxBufShift
4719 );
4720 /* unit: 0.5M */
4721 /* TODO */
4722 if (!stats->bHwError) {
4723 u8 ret_rate;
4724
4725 ret_rate = HwRateToMRate90(driver_info->RxHT,
4726 driver_info->RxRate);
4727 if (ret_rate == 0xff) {
4728 /* Abnormal Case: Receive CRC OK packet with Rx
4729 * descriptor indicating non supported rate.
4730 * Special Error Handling here
4731 */
4732
4733 stats->bHwError = 1;
4734 /* Set 1M rate by default */
4735 stats->rate = MGN_1M;
4736 } else {
4737 stats->rate = ret_rate;
4738 }
4739 } else {
4740 stats->rate = 0x02;
4741 }
4742
4743 stats->bShortPreamble = driver_info->SPLCP;
4744
4745
4746 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4747
4748 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4749 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4750 (driver_info->FirstAGGR == 1);
4751 stats->TimeStampLow = driver_info->TSFL;
4752
4753 UpdateRxPktTimeStamp8190(dev, stats);
4754
4755 /* Rx A-MPDU */
4756 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4757 RT_TRACE(COMP_RXDESC,
4758 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4759 driver_info->FirstAGGR, driver_info->PartAggr);
4760
4761 }
4762
4763 skb_pull(skb, sizeof(rx_desc_819x_usb));
4764 /* Get Total offset of MPDU Frame Body */
4765 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4766 stats->bShift = 1;
4767 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4768 }
4769
4770 if (driver_info) {
4771 stats->RxIs40MHzPacket = driver_info->BW;
4772 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4773 }
4774 }
4775
rtl8192_rx_nomal(struct sk_buff * skb)4776 static void rtl8192_rx_nomal(struct sk_buff *skb)
4777 {
4778 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4779 struct net_device *dev = info->dev;
4780 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4781 struct ieee80211_rx_stats stats = {
4782 .signal = 0,
4783 .noise = 0x100 - 98,
4784 .rate = 0,
4785 .freq = IEEE80211_24GHZ_BAND,
4786 };
4787 u32 rx_pkt_len = 0;
4788 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4789 bool unicast_packet = false;
4790
4791 /* 20 is for ps-poll */
4792 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4793 /* first packet should not contain Rx aggregation header */
4794 query_rxdesc_status(skb, &stats, false);
4795 /* TODO */
4796 /* hardware related info */
4797 /* Process the MPDU received */
4798 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4799
4800 rx_pkt_len = skb->len;
4801 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4802 unicast_packet = false;
4803 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4804 /* TODO */
4805 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4806 /* TODO */
4807 } else {
4808 /* unicast packet */
4809 unicast_packet = true;
4810 }
4811
4812 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4813 dev_kfree_skb_any(skb);
4814 } else {
4815 priv->stats.rxoktotal++;
4816 if (unicast_packet)
4817 priv->stats.rxbytesunicast += rx_pkt_len;
4818 }
4819 } else {
4820 priv->stats.rxurberr++;
4821 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4822 dev_kfree_skb_any(skb);
4823 }
4824
4825 }
4826
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4827 static void rtl819xusb_process_received_packet(
4828 struct net_device *dev,
4829 struct ieee80211_rx_stats *pstats)
4830 {
4831 u8 *frame;
4832 u16 frame_len = 0;
4833 struct r8192_priv *priv = ieee80211_priv(dev);
4834
4835 /* Get shifted bytes of Starting address of 802.11 header. */
4836 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4837 frame = pstats->virtual_address;
4838 frame_len = pstats->packetlength;
4839 #ifdef TODO /* about HCT */
4840 if (!Adapter->bInHctTest)
4841 CountRxErrStatistics(Adapter, pRfd);
4842 #endif
4843 #ifdef ENABLE_PS /* for adding ps function in future */
4844 RT_RF_POWER_STATE rtState;
4845 /* When RF is off, we should not count the packet for hw/sw synchronize
4846 * reason, ie. there may be a duration while sw switch is changed and
4847 * hw switch is being changed.
4848 */
4849 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4850 (u8 *)(&rtState));
4851 if (rtState == eRfOff)
4852 return;
4853 #endif
4854 priv->stats.rxframgment++;
4855
4856 #ifdef TODO
4857 RmMonitorSignalStrength(Adapter, pRfd);
4858 #endif
4859 /* We have to release RFD and return if rx pkt is cmd pkt. */
4860 if (rtl819xusb_rx_command_packet(dev, pstats))
4861 return;
4862
4863 #ifdef SW_CRC_CHECK
4864 SwCrcCheck();
4865 #endif
4866
4867
4868 }
4869
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4870 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4871 struct ieee80211_rx_stats *stats)
4872 {
4873 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4874
4875 /* Get Rx Descriptor Information */
4876 stats->virtual_address = (u8 *)skb->data;
4877 stats->Length = desc->Length;
4878 stats->RxDrvInfoSize = 0;
4879 stats->RxBufShift = 0;
4880 stats->packetlength = stats->Length - scrclng;
4881 stats->fraglength = stats->packetlength;
4882 stats->fragoffset = 0;
4883 stats->ntotalfrag = 1;
4884 }
4885
4886
rtl8192_rx_cmd(struct sk_buff * skb)4887 static void rtl8192_rx_cmd(struct sk_buff *skb)
4888 {
4889 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4890 struct net_device *dev = info->dev;
4891 /* TODO */
4892 struct ieee80211_rx_stats stats = {
4893 .signal = 0,
4894 .noise = 0x100 - 98,
4895 .rate = 0,
4896 .freq = IEEE80211_24GHZ_BAND,
4897 };
4898
4899 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4900
4901 query_rx_cmdpkt_desc_status(skb, &stats);
4902 /* prfd->queue_id = 1; */
4903
4904 /* Process the command packet received. */
4905
4906 rtl819xusb_process_received_packet(dev, &stats);
4907
4908 dev_kfree_skb_any(skb);
4909 }
4910 }
4911
rtl8192_irq_rx_tasklet(struct r8192_priv * priv)4912 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4913 {
4914 struct sk_buff *skb;
4915 struct rtl8192_rx_info *info;
4916
4917 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4918 info = (struct rtl8192_rx_info *)skb->cb;
4919 switch (info->out_pipe) {
4920 /* Nomal packet pipe */
4921 case 3:
4922 priv->IrpPendingCount--;
4923 rtl8192_rx_nomal(skb);
4924 break;
4925
4926 /* Command packet pipe */
4927 case 9:
4928 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4929 info->out_pipe);
4930
4931 rtl8192_rx_cmd(skb);
4932 break;
4933
4934 default: /* should never get here! */
4935 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4936 info->out_pipe);
4937 dev_kfree_skb(skb);
4938 break;
4939
4940 }
4941 }
4942 }
4943
4944 static const struct net_device_ops rtl8192_netdev_ops = {
4945 .ndo_open = rtl8192_open,
4946 .ndo_stop = rtl8192_close,
4947 .ndo_get_stats = rtl8192_stats,
4948 .ndo_tx_timeout = tx_timeout,
4949 .ndo_do_ioctl = rtl8192_ioctl,
4950 .ndo_set_rx_mode = r8192_set_multicast,
4951 .ndo_set_mac_address = r8192_set_mac_adr,
4952 .ndo_validate_addr = eth_validate_addr,
4953 .ndo_change_mtu = eth_change_mtu,
4954 .ndo_start_xmit = ieee80211_xmit,
4955 };
4956
4957
4958 /****************************************************************************
4959 ---------------------------- USB_STUFF---------------------------
4960 *****************************************************************************/
4961
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4962 static int rtl8192_usb_probe(struct usb_interface *intf,
4963 const struct usb_device_id *id)
4964 {
4965 struct net_device *dev = NULL;
4966 struct r8192_priv *priv = NULL;
4967 struct usb_device *udev = interface_to_usbdev(intf);
4968 int ret;
4969
4970 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4971
4972 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4973 if (dev == NULL)
4974 return -ENOMEM;
4975
4976 usb_set_intfdata(intf, dev);
4977 SET_NETDEV_DEV(dev, &intf->dev);
4978 priv = ieee80211_priv(dev);
4979 priv->ieee80211 = netdev_priv(dev);
4980 priv->udev = udev;
4981
4982 dev->netdev_ops = &rtl8192_netdev_ops;
4983
4984 dev->wireless_handlers =
4985 (struct iw_handler_def *)&r8192_wx_handlers_def;
4986
4987 dev->type = ARPHRD_ETHER;
4988
4989 dev->watchdog_timeo = HZ * 3;
4990
4991 if (dev_alloc_name(dev, ifname) < 0) {
4992 RT_TRACE(COMP_INIT,
4993 "Oops: devname already taken! Trying wlan%%d...\n");
4994 ifname = "wlan%d";
4995 dev_alloc_name(dev, ifname);
4996 }
4997
4998 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4999 if (rtl8192_init(dev) != 0) {
5000 RT_TRACE(COMP_ERR, "Initialization failed");
5001 ret = -ENODEV;
5002 goto fail;
5003 }
5004 netif_carrier_off(dev);
5005 netif_stop_queue(dev);
5006
5007 ret = register_netdev(dev);
5008 if (ret)
5009 goto fail2;
5010
5011 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
5012 rtl8192_proc_init_one(dev);
5013
5014
5015 RT_TRACE(COMP_INIT, "Driver probe completed\n");
5016 return 0;
5017
5018 fail2:
5019 rtl8192_down(dev);
5020 kfree(priv->pFirmware);
5021 priv->pFirmware = NULL;
5022 rtl8192_usb_deleteendpoints(dev);
5023 destroy_workqueue(priv->priv_wq);
5024 mdelay(10);
5025 fail:
5026 free_ieee80211(dev);
5027
5028 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
5029 return ret;
5030 }
5031
5032 /* detach all the work and timer structure declared or inititialize
5033 * in r8192U_init function.
5034 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)5035 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
5036 {
5037
5038 cancel_work_sync(&priv->reset_wq);
5039 cancel_delayed_work(&priv->watch_dog_wq);
5040 cancel_delayed_work(&priv->update_beacon_wq);
5041 cancel_work_sync(&priv->qos_activate);
5042 }
5043
5044
rtl8192_usb_disconnect(struct usb_interface * intf)5045 static void rtl8192_usb_disconnect(struct usb_interface *intf)
5046 {
5047 struct net_device *dev = usb_get_intfdata(intf);
5048 struct r8192_priv *priv = ieee80211_priv(dev);
5049
5050 if (dev) {
5051 unregister_netdev(dev);
5052
5053 RT_TRACE(COMP_DOWN,
5054 "=============>wlan driver to be removed\n");
5055 rtl8192_proc_remove_one(dev);
5056
5057 rtl8192_down(dev);
5058 kfree(priv->pFirmware);
5059 priv->pFirmware = NULL;
5060 rtl8192_usb_deleteendpoints(dev);
5061 destroy_workqueue(priv->priv_wq);
5062 mdelay(10);
5063 }
5064 free_ieee80211(dev);
5065 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5066 }
5067
rtl8192_usb_module_init(void)5068 static int __init rtl8192_usb_module_init(void)
5069 {
5070 int ret;
5071
5072 #ifdef CONFIG_IEEE80211_DEBUG
5073 ret = ieee80211_debug_init();
5074 if (ret) {
5075 pr_err("ieee80211_debug_init() failed %d\n", ret);
5076 return ret;
5077 }
5078 #endif
5079 ret = ieee80211_crypto_init();
5080 if (ret) {
5081 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5082 return ret;
5083 }
5084
5085 ret = ieee80211_crypto_tkip_init();
5086 if (ret) {
5087 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5088 return ret;
5089 }
5090
5091 ret = ieee80211_crypto_ccmp_init();
5092 if (ret) {
5093 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5094 return ret;
5095 }
5096
5097 ret = ieee80211_crypto_wep_init();
5098 if (ret) {
5099 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5100 return ret;
5101 }
5102
5103 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5104 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5105 RT_TRACE(COMP_INIT, "Initializing module");
5106 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5107 rtl8192_proc_module_init();
5108 return usb_register(&rtl8192_usb_driver);
5109 }
5110
5111
rtl8192_usb_module_exit(void)5112 static void __exit rtl8192_usb_module_exit(void)
5113 {
5114 usb_deregister(&rtl8192_usb_driver);
5115
5116 RT_TRACE(COMP_DOWN, "Exiting");
5117 }
5118
5119
rtl8192_try_wake_queue(struct net_device * dev,int pri)5120 void rtl8192_try_wake_queue(struct net_device *dev, int pri)
5121 {
5122 unsigned long flags;
5123 short enough_desc;
5124 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5125
5126 spin_lock_irqsave(&priv->tx_lock, flags);
5127 enough_desc = check_nic_enough_desc(dev, pri);
5128 spin_unlock_irqrestore(&priv->tx_lock, flags);
5129
5130 if (enough_desc)
5131 ieee80211_wake_queue(priv->ieee80211);
5132 }
5133
EnableHWSecurityConfig8192(struct net_device * dev)5134 void EnableHWSecurityConfig8192(struct net_device *dev)
5135 {
5136 u8 SECR_value = 0x0;
5137 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5138 struct ieee80211_device *ieee = priv->ieee80211;
5139
5140 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5141 if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
5142 SECR_value |= SCR_RxUseDK;
5143 SECR_value |= SCR_TxUseDK;
5144 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5145 SECR_value |= SCR_RxUseDK;
5146 SECR_value |= SCR_TxUseDK;
5147 }
5148 /* add HWSec active enable here.
5149 * default using hwsec. when peer AP is in N mode only and
5150 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5151 * it), use software security. when peer AP is in b,g,n mode mixed and
5152 * pairwise_key_type is none_aes, use g mode hw security.
5153 */
5154
5155 ieee->hwsec_active = 1;
5156
5157 /* add hwsec_support flag to totol control hw_sec on/off */
5158 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5159 ieee->hwsec_active = 0;
5160 SECR_value &= ~SCR_RxDecEnable;
5161 }
5162 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5163 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5164 SECR_value);
5165 write_nic_byte(dev, SECR, SECR_value);
5166 }
5167
5168
setKey(struct net_device * dev,u8 EntryNo,u8 KeyIndex,u16 KeyType,u8 * MacAddr,u8 DefaultKey,u32 * KeyContent)5169 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5170 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5171 {
5172 u32 TargetCommand = 0;
5173 u32 TargetContent = 0;
5174 u16 usConfig = 0;
5175 u8 i;
5176
5177 if (EntryNo >= TOTAL_CAM_ENTRY)
5178 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5179
5180 RT_TRACE(COMP_SEC,
5181 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5182 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5183
5184 if (DefaultKey)
5185 usConfig |= BIT(15) | (KeyType << 2);
5186 else
5187 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
5188
5189
5190 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5191 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5192 TargetCommand |= BIT(31) | BIT(16);
5193
5194 if (i == 0) { /* MAC|Config */
5195 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5196 (u32)(*(MacAddr + 1)) << 24 |
5197 (u32)usConfig;
5198
5199 write_nic_dword(dev, WCAMI, TargetContent);
5200 write_nic_dword(dev, RWCAM, TargetCommand);
5201 } else if (i == 1) { /* MAC */
5202 TargetContent = (u32)(*(MacAddr + 2)) |
5203 (u32)(*(MacAddr + 3)) << 8 |
5204 (u32)(*(MacAddr + 4)) << 16 |
5205 (u32)(*(MacAddr + 5)) << 24;
5206 write_nic_dword(dev, WCAMI, TargetContent);
5207 write_nic_dword(dev, RWCAM, TargetCommand);
5208 } else {
5209 /* Key Material */
5210 if (KeyContent != NULL) {
5211 write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2)));
5212 write_nic_dword(dev, RWCAM, TargetCommand);
5213 }
5214 }
5215 }
5216
5217 }
5218
5219 /***************************************************************************
5220 ------------------- module init / exit stubs ----------------
5221 ****************************************************************************/
5222 module_init(rtl8192_usb_module_init);
5223 module_exit(rtl8192_usb_module_exit);
5224