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, 0644);
118 module_param(hwwep, int, 0644);
119 module_param(channels, int, 0644);
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
write_cam(struct net_device * dev,u8 addr,u32 data)241 void write_cam(struct net_device *dev, u8 addr, u32 data)
242 {
243 write_nic_dword(dev, WCAMI, data);
244 write_nic_dword(dev, RWCAM, BIT(31) | BIT(16) | (addr & 0xff));
245 }
246
read_cam(struct net_device * dev,u8 addr)247 u32 read_cam(struct net_device *dev, u8 addr)
248 {
249 u32 data;
250
251 write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff));
252 read_nic_dword(dev, 0xa8, &data);
253 return data;
254 }
255
write_nic_byte_E(struct net_device * dev,int indx,u8 data)256 int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
257 {
258 int status;
259 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
260 struct usb_device *udev = priv->udev;
261 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
262
263 if (!usbdata)
264 return -ENOMEM;
265 *usbdata = data;
266
267 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
268 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
269 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
270 kfree(usbdata);
271
272 if (status < 0) {
273 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
274 return status;
275 }
276 return 0;
277 }
278
read_nic_byte_E(struct net_device * dev,int indx,u8 * data)279 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
280 {
281 int status;
282 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
283 struct usb_device *udev = priv->udev;
284 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
285
286 if (!usbdata)
287 return -ENOMEM;
288
289 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
290 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
291 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
292 *data = *usbdata;
293 kfree(usbdata);
294
295 if (status < 0) {
296 netdev_err(dev, "%s failure status: %d\n", __func__, status);
297 return status;
298 }
299
300 return 0;
301 }
302
303 /* as 92U has extend page from 4 to 16, so modify functions below. */
write_nic_byte(struct net_device * dev,int indx,u8 data)304 int write_nic_byte(struct net_device *dev, int indx, u8 data)
305 {
306 int status;
307
308 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
309 struct usb_device *udev = priv->udev;
310 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
311
312 if (!usbdata)
313 return -ENOMEM;
314 *usbdata = data;
315
316 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
317 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
318 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
319 usbdata, 1, HZ / 2);
320 kfree(usbdata);
321
322 if (status < 0) {
323 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
324 return status;
325 }
326
327 return 0;
328 }
329
330
write_nic_word(struct net_device * dev,int indx,u16 data)331 int write_nic_word(struct net_device *dev, int indx, u16 data)
332 {
333 int status;
334
335 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
336 struct usb_device *udev = priv->udev;
337 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
338
339 if (!usbdata)
340 return -ENOMEM;
341 *usbdata = data;
342
343 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
344 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
345 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
346 usbdata, 2, HZ / 2);
347 kfree(usbdata);
348
349 if (status < 0) {
350 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
351 return status;
352 }
353
354 return 0;
355 }
356
357
write_nic_dword(struct net_device * dev,int indx,u32 data)358 int write_nic_dword(struct net_device *dev, int indx, u32 data)
359 {
360 int status;
361
362 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
363 struct usb_device *udev = priv->udev;
364 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
365
366 if (!usbdata)
367 return -ENOMEM;
368 *usbdata = data;
369
370 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
371 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
372 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
373 usbdata, 4, HZ / 2);
374 kfree(usbdata);
375
376
377 if (status < 0) {
378 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
379 return status;
380 }
381
382 return 0;
383 }
384
385
386
read_nic_byte(struct net_device * dev,int indx,u8 * data)387 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
388 {
389 int status;
390 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
391 struct usb_device *udev = priv->udev;
392 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
393
394 if (!usbdata)
395 return -ENOMEM;
396
397 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
398 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
399 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
400 usbdata, 1, HZ / 2);
401 *data = *usbdata;
402 kfree(usbdata);
403
404 if (status < 0) {
405 netdev_err(dev, "%s failure status: %d\n", __func__, status);
406 return status;
407 }
408
409 return 0;
410 }
411
412
413
read_nic_word(struct net_device * dev,int indx,u16 * data)414 int read_nic_word(struct net_device *dev, int indx, u16 *data)
415 {
416 int status;
417 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
418 struct usb_device *udev = priv->udev;
419 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
420
421 if (!usbdata)
422 return -ENOMEM;
423
424 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
425 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
426 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
427 usbdata, 2, HZ / 2);
428 *data = *usbdata;
429 kfree(usbdata);
430
431 if (status < 0) {
432 netdev_err(dev, "%s failure status: %d\n", __func__, status);
433 return status;
434 }
435
436 return 0;
437 }
438
read_nic_word_E(struct net_device * dev,int indx,u16 * data)439 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
440 {
441 int status;
442 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
443 struct usb_device *udev = priv->udev;
444 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
445
446 if (!usbdata)
447 return -ENOMEM;
448
449 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
450 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
451 indx | 0xfe00, 0, usbdata, 2, HZ / 2);
452 *data = *usbdata;
453 kfree(usbdata);
454
455 if (status < 0) {
456 netdev_err(dev, "%s failure status: %d\n", __func__, status);
457 return status;
458 }
459
460 return 0;
461 }
462
read_nic_dword(struct net_device * dev,int indx,u32 * data)463 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
464 {
465 int status;
466
467 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
468 struct usb_device *udev = priv->udev;
469 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
470
471 if (!usbdata)
472 return -ENOMEM;
473
474 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
475 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
476 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
477 usbdata, 4, HZ / 2);
478 *data = *usbdata;
479 kfree(usbdata);
480
481 if (status < 0) {
482 netdev_err(dev, "%s failure status: %d\n", __func__, status);
483 return status;
484 }
485
486 return 0;
487 }
488
489 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
490 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
491 /* this might still called in what was the PHY rtl8185/rtl8192 common code
492 * plans are to possibility turn it again in one common code...
493 */
force_pci_posting(struct net_device * dev)494 inline void force_pci_posting(struct net_device *dev)
495 {
496 }
497
498 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
499 static void rtl8192_restart(struct work_struct *work);
500 static void watch_dog_timer_callback(unsigned long data);
501
502 /****************************************************************************
503 * -----------------------------PROCFS STUFF-------------------------
504 ****************************************************************************/
505
506 static struct proc_dir_entry *rtl8192_proc;
507
proc_get_stats_ap(struct seq_file * m,void * v)508 static int proc_get_stats_ap(struct seq_file *m, void *v)
509 {
510 struct net_device *dev = m->private;
511 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
512 struct ieee80211_device *ieee = priv->ieee80211;
513 struct ieee80211_network *target;
514
515 list_for_each_entry(target, &ieee->network_list, list) {
516 const char *wpa = "non_WPA";
517
518 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
519 wpa = "WPA";
520
521 seq_printf(m, "%s %s\n", target->ssid, wpa);
522 }
523
524 return 0;
525 }
526
proc_get_registers(struct seq_file * m,void * v)527 static int proc_get_registers(struct seq_file *m, void *v)
528 {
529 struct net_device *dev = m->private;
530 int i, n, max = 0xff;
531 u8 byte_rd;
532
533 seq_puts(m, "\n####################page 0##################\n ");
534
535 for (n = 0; n <= max;) {
536 seq_printf(m, "\nD: %2x > ", n);
537
538 for (i = 0; i < 16 && n <= max; i++, n++) {
539 read_nic_byte(dev, 0x000 | n, &byte_rd);
540 seq_printf(m, "%2x ", byte_rd);
541 }
542 }
543
544 seq_puts(m, "\n####################page 1##################\n ");
545 for (n = 0; n <= max;) {
546 seq_printf(m, "\nD: %2x > ", n);
547
548 for (i = 0; i < 16 && n <= max; i++, n++) {
549 read_nic_byte(dev, 0x100 | n, &byte_rd);
550 seq_printf(m, "%2x ", byte_rd);
551 }
552 }
553
554 seq_puts(m, "\n####################page 3##################\n ");
555 for (n = 0; n <= max;) {
556 seq_printf(m, "\nD: %2x > ", n);
557
558 for (i = 0; i < 16 && n <= max; i++, n++) {
559 read_nic_byte(dev, 0x300 | n, &byte_rd);
560 seq_printf(m, "%2x ", byte_rd);
561 }
562 }
563
564 seq_putc(m, '\n');
565 return 0;
566 }
567
proc_get_stats_tx(struct seq_file * m,void * v)568 static int proc_get_stats_tx(struct seq_file *m, void *v)
569 {
570 struct net_device *dev = m->private;
571 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
572
573 seq_printf(m,
574 "TX VI priority ok int: %lu\n"
575 "TX VI priority error int: %lu\n"
576 "TX VO priority ok int: %lu\n"
577 "TX VO priority error int: %lu\n"
578 "TX BE priority ok int: %lu\n"
579 "TX BE priority error int: %lu\n"
580 "TX BK priority ok int: %lu\n"
581 "TX BK priority error int: %lu\n"
582 "TX MANAGE priority ok int: %lu\n"
583 "TX MANAGE priority error int: %lu\n"
584 "TX BEACON priority ok int: %lu\n"
585 "TX BEACON priority error int: %lu\n"
586 "TX queue resume: %lu\n"
587 "TX queue stopped?: %d\n"
588 "TX fifo overflow: %lu\n"
589 "TX VI queue: %d\n"
590 "TX VO queue: %d\n"
591 "TX BE queue: %d\n"
592 "TX BK queue: %d\n"
593 "TX VI dropped: %lu\n"
594 "TX VO dropped: %lu\n"
595 "TX BE dropped: %lu\n"
596 "TX BK dropped: %lu\n"
597 "TX total data packets %lu\n",
598 priv->stats.txviokint,
599 priv->stats.txvierr,
600 priv->stats.txvookint,
601 priv->stats.txvoerr,
602 priv->stats.txbeokint,
603 priv->stats.txbeerr,
604 priv->stats.txbkokint,
605 priv->stats.txbkerr,
606 priv->stats.txmanageokint,
607 priv->stats.txmanageerr,
608 priv->stats.txbeaconokint,
609 priv->stats.txbeaconerr,
610 priv->stats.txresumed,
611 netif_queue_stopped(dev),
612 priv->stats.txoverflow,
613 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
614 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
615 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
616 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
617 priv->stats.txvidrop,
618 priv->stats.txvodrop,
619 priv->stats.txbedrop,
620 priv->stats.txbkdrop,
621 priv->stats.txdatapkt
622 );
623
624 return 0;
625 }
626
proc_get_stats_rx(struct seq_file * m,void * v)627 static int proc_get_stats_rx(struct seq_file *m, void *v)
628 {
629 struct net_device *dev = m->private;
630 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
631
632 seq_printf(m,
633 "RX packets: %lu\n"
634 "RX urb status error: %lu\n"
635 "RX invalid urb error: %lu\n",
636 priv->stats.rxoktotal,
637 priv->stats.rxstaterr,
638 priv->stats.rxurberr);
639
640 return 0;
641 }
642
rtl8192_proc_module_init(void)643 static void rtl8192_proc_module_init(void)
644 {
645 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
646 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
647 }
648
649 /*
650 * seq_file wrappers for procfile show routines.
651 */
rtl8192_proc_open(struct inode * inode,struct file * file)652 static int rtl8192_proc_open(struct inode *inode, struct file *file)
653 {
654 struct net_device *dev = proc_get_parent_data(inode);
655 int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
656
657 return single_open(file, show, dev);
658 }
659
660 static const struct file_operations rtl8192_proc_fops = {
661 .open = rtl8192_proc_open,
662 .read = seq_read,
663 .llseek = seq_lseek,
664 .release = single_release,
665 };
666
667 /*
668 * Table of proc files we need to create.
669 */
670 struct rtl8192_proc_file {
671 char name[12];
672 int (*show)(struct seq_file *, void *);
673 };
674
675 static const struct rtl8192_proc_file rtl8192_proc_files[] = {
676 { "stats-rx", &proc_get_stats_rx },
677 { "stats-tx", &proc_get_stats_tx },
678 { "stats-ap", &proc_get_stats_ap },
679 { "registers", &proc_get_registers },
680 { "" }
681 };
682
rtl8192_proc_init_one(struct net_device * dev)683 static void rtl8192_proc_init_one(struct net_device *dev)
684 {
685 const struct rtl8192_proc_file *f;
686 struct proc_dir_entry *dir;
687
688 if (rtl8192_proc) {
689 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
690 if (!dir) {
691 RT_TRACE(COMP_ERR,
692 "Unable to initialize /proc/net/rtl8192/%s\n",
693 dev->name);
694 return;
695 }
696
697 for (f = rtl8192_proc_files; f->name[0]; f++) {
698 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
699 &rtl8192_proc_fops, f->show)) {
700 RT_TRACE(COMP_ERR,
701 "Unable to initialize /proc/net/rtl8192/%s/%s\n",
702 dev->name, f->name);
703 return;
704 }
705 }
706 }
707 }
708
rtl8192_proc_remove_one(struct net_device * dev)709 static void rtl8192_proc_remove_one(struct net_device *dev)
710 {
711 remove_proc_subtree(dev->name, rtl8192_proc);
712 }
713
714 /****************************************************************************
715 * -----------------------------MISC STUFF-------------------------
716 *****************************************************************************/
717
check_nic_enough_desc(struct net_device * dev,int queue_index)718 short check_nic_enough_desc(struct net_device *dev, int queue_index)
719 {
720 struct r8192_priv *priv = ieee80211_priv(dev);
721 int used = atomic_read(&priv->tx_pending[queue_index]);
722
723 return (used < MAX_TX_URB);
724 }
725
tx_timeout(struct net_device * dev)726 static void tx_timeout(struct net_device *dev)
727 {
728 struct r8192_priv *priv = ieee80211_priv(dev);
729
730 schedule_work(&priv->reset_wq);
731 }
732
rtl8192_update_msr(struct net_device * dev)733 void rtl8192_update_msr(struct net_device *dev)
734 {
735 struct r8192_priv *priv = ieee80211_priv(dev);
736 u8 msr;
737
738 read_nic_byte(dev, MSR, &msr);
739 msr &= ~MSR_LINK_MASK;
740
741 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
742 * msr must be updated if the state is ASSOCIATING.
743 * this is intentional and make sense for ad-hoc and
744 * master (see the create BSS/IBSS func)
745 */
746 if (priv->ieee80211->state == IEEE80211_LINKED) {
747 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
748 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
749 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
750 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
751 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
752 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
753
754 } else {
755 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
756 }
757
758 write_nic_byte(dev, MSR, msr);
759 }
760
rtl8192_set_chan(struct net_device * dev,short ch)761 void rtl8192_set_chan(struct net_device *dev, short ch)
762 {
763 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
764
765 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
766 priv->chan = ch;
767
768 /* this hack should avoid frame TX during channel setting*/
769
770 /* need to implement rf set channel here */
771
772 if (priv->rf_set_chan)
773 priv->rf_set_chan(dev, priv->chan);
774 mdelay(10);
775 }
776
777 static void rtl8192_rx_isr(struct urb *urb);
778
get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats * pstats)779 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
780 {
781 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
782 + pstats->RxBufShift);
783 }
784
rtl8192_rx_initiate(struct net_device * dev)785 static int rtl8192_rx_initiate(struct net_device *dev)
786 {
787 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
788 struct urb *entry;
789 struct sk_buff *skb;
790 struct rtl8192_rx_info *info;
791
792 /* nomal packet rx procedure */
793 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
794 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
795 if (!skb)
796 break;
797 entry = usb_alloc_urb(0, GFP_KERNEL);
798 if (!entry) {
799 kfree_skb(skb);
800 break;
801 }
802 usb_fill_bulk_urb(entry, priv->udev,
803 usb_rcvbulkpipe(priv->udev, 3),
804 skb_tail_pointer(skb),
805 RX_URB_SIZE, rtl8192_rx_isr, skb);
806 info = (struct rtl8192_rx_info *)skb->cb;
807 info->urb = entry;
808 info->dev = dev;
809 info->out_pipe = 3; /* denote rx normal packet queue */
810 skb_queue_tail(&priv->rx_queue, skb);
811 usb_submit_urb(entry, GFP_KERNEL);
812 }
813
814 /* command packet rx procedure */
815 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
816 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
817 if (!skb)
818 break;
819 entry = usb_alloc_urb(0, GFP_KERNEL);
820 if (!entry) {
821 kfree_skb(skb);
822 break;
823 }
824 usb_fill_bulk_urb(entry, priv->udev,
825 usb_rcvbulkpipe(priv->udev, 9),
826 skb_tail_pointer(skb),
827 RX_URB_SIZE, rtl8192_rx_isr, skb);
828 info = (struct rtl8192_rx_info *)skb->cb;
829 info->urb = entry;
830 info->dev = dev;
831 info->out_pipe = 9; /* denote rx cmd packet queue */
832 skb_queue_tail(&priv->rx_queue, skb);
833 usb_submit_urb(entry, GFP_KERNEL);
834 }
835
836 return 0;
837 }
838
rtl8192_set_rxconf(struct net_device * dev)839 void rtl8192_set_rxconf(struct net_device *dev)
840 {
841 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
842 u32 rxconf;
843
844 read_nic_dword(dev, RCR, &rxconf);
845 rxconf = rxconf & ~MAC_FILTER_MASK;
846 rxconf = rxconf | RCR_AMF;
847 rxconf = rxconf | RCR_ADF;
848 rxconf = rxconf | RCR_AB;
849 rxconf = rxconf | RCR_AM;
850
851 if (dev->flags & IFF_PROMISC)
852 DMESG("NIC in promisc mode");
853
854 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
855 dev->flags & IFF_PROMISC) {
856 rxconf = rxconf | RCR_AAP;
857 } else {
858 rxconf = rxconf | RCR_APM;
859 rxconf = rxconf | RCR_CBSSID;
860 }
861
862
863 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
864 rxconf = rxconf | RCR_AICV;
865 rxconf = rxconf | RCR_APWRMGT;
866 }
867
868 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
869 rxconf = rxconf | RCR_ACRC32;
870
871
872 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
873 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
874 rxconf = rxconf & ~MAX_RX_DMA_MASK;
875 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
876
877 rxconf = rxconf | RCR_ONLYERLPKT;
878
879 write_nic_dword(dev, RCR, rxconf);
880 }
881
882 /* wait to be removed */
rtl8192_rx_enable(struct net_device * dev)883 void rtl8192_rx_enable(struct net_device *dev)
884 {
885 rtl8192_rx_initiate(dev);
886 }
887
888
rtl8192_tx_enable(struct net_device * dev)889 void rtl8192_tx_enable(struct net_device *dev)
890 {
891 }
892
893
894
rtl8192_rtx_disable(struct net_device * dev)895 void rtl8192_rtx_disable(struct net_device *dev)
896 {
897 u8 cmd;
898 struct r8192_priv *priv = ieee80211_priv(dev);
899 struct sk_buff *skb;
900 struct rtl8192_rx_info *info;
901
902 read_nic_byte(dev, CMDR, &cmd);
903 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
904 force_pci_posting(dev);
905 mdelay(10);
906
907 while ((skb = __skb_dequeue(&priv->rx_queue))) {
908 info = (struct rtl8192_rx_info *)skb->cb;
909 if (!info->urb)
910 continue;
911
912 usb_kill_urb(info->urb);
913 kfree_skb(skb);
914 }
915
916 if (skb_queue_len(&priv->skb_queue))
917 netdev_warn(dev, "skb_queue not empty\n");
918
919 skb_queue_purge(&priv->skb_queue);
920 }
921
922 /* The prototype of rx_isr has changed since one version of Linux Kernel */
rtl8192_rx_isr(struct urb * urb)923 static void rtl8192_rx_isr(struct urb *urb)
924 {
925 struct sk_buff *skb = (struct sk_buff *)urb->context;
926 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
927 struct net_device *dev = info->dev;
928 struct r8192_priv *priv = ieee80211_priv(dev);
929 int out_pipe = info->out_pipe;
930 int err;
931
932 if (!priv->up)
933 return;
934
935 if (unlikely(urb->status)) {
936 info->urb = NULL;
937 priv->stats.rxstaterr++;
938 priv->ieee80211->stats.rx_errors++;
939 usb_free_urb(urb);
940 return;
941 }
942 skb_unlink(skb, &priv->rx_queue);
943 skb_put(skb, urb->actual_length);
944
945 skb_queue_tail(&priv->skb_queue, skb);
946 tasklet_schedule(&priv->irq_rx_tasklet);
947
948 skb = dev_alloc_skb(RX_URB_SIZE);
949 if (unlikely(!skb)) {
950 usb_free_urb(urb);
951 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
952 /* TODO check rx queue length and refill *somewhere* */
953 return;
954 }
955
956 usb_fill_bulk_urb(urb, priv->udev,
957 usb_rcvbulkpipe(priv->udev, out_pipe),
958 skb_tail_pointer(skb),
959 RX_URB_SIZE, rtl8192_rx_isr, skb);
960
961 info = (struct rtl8192_rx_info *)skb->cb;
962 info->urb = urb;
963 info->dev = dev;
964 info->out_pipe = out_pipe;
965
966 urb->transfer_buffer = skb_tail_pointer(skb);
967 urb->context = skb;
968 skb_queue_tail(&priv->rx_queue, skb);
969 err = usb_submit_urb(urb, GFP_ATOMIC);
970 if (err && err != EPERM)
971 netdev_err(dev,
972 "can not submit rxurb, err is %x, URB status is %x\n",
973 err, urb->status);
974 }
975
rtl819xusb_rx_command_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)976 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
977 struct ieee80211_rx_stats *pstats)
978 {
979 u32 status;
980
981 status = cmpk_message_handle_rx(dev, pstats);
982 if (status)
983 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
984
985 return status;
986 }
987
988
rtl8192_data_hard_stop(struct net_device * dev)989 static void rtl8192_data_hard_stop(struct net_device *dev)
990 {
991 /* FIXME !! */
992 }
993
994
rtl8192_data_hard_resume(struct net_device * dev)995 static void rtl8192_data_hard_resume(struct net_device *dev)
996 {
997 /* FIXME !! */
998 }
999
1000 /* this function TX data frames when the ieee80211 stack requires this.
1001 * It checks also if we need to stop the ieee tx queue, eventually do it
1002 */
rtl8192_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)1003 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
1004 int rate)
1005 {
1006 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1007 int ret;
1008 unsigned long flags;
1009 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1010 u8 queue_index = tcb_desc->queue_index;
1011
1012 /* shall not be referred by command packet */
1013 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
1014
1015 spin_lock_irqsave(&priv->tx_lock, flags);
1016
1017 *(struct net_device **)(skb->cb) = dev;
1018 tcb_desc->bTxEnableFwCalcDur = 1;
1019 skb_push(skb, priv->ieee80211->tx_headroom);
1020 ret = rtl8192_tx(dev, skb);
1021
1022 spin_unlock_irqrestore(&priv->tx_lock, flags);
1023 }
1024
1025 /* This is a rough attempt to TX a frame
1026 * This is called by the ieee 80211 stack to TX management frames.
1027 * If the ring is full packet are dropped (for data frame the queue
1028 * is stopped before this can happen).
1029 */
rtl8192_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)1030 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1031 {
1032 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1033 int ret;
1034 unsigned long flags;
1035 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1036 u8 queue_index = tcb_desc->queue_index;
1037
1038
1039 spin_lock_irqsave(&priv->tx_lock, flags);
1040
1041 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1042 if (queue_index == TXCMD_QUEUE) {
1043 skb_push(skb, USB_HWDESC_HEADER_LEN);
1044 rtl819xU_tx_cmd(dev, skb);
1045 ret = 1;
1046 } else {
1047 skb_push(skb, priv->ieee80211->tx_headroom);
1048 ret = rtl8192_tx(dev, skb);
1049 }
1050
1051 spin_unlock_irqrestore(&priv->tx_lock, flags);
1052
1053 return ret;
1054 }
1055
rtl8192_tx_isr(struct urb * tx_urb)1056 static void rtl8192_tx_isr(struct urb *tx_urb)
1057 {
1058 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
1059 struct net_device *dev;
1060 struct r8192_priv *priv = NULL;
1061 struct cb_desc *tcb_desc;
1062 u8 queue_index;
1063
1064 if (!skb)
1065 return;
1066
1067 dev = *(struct net_device **)(skb->cb);
1068 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1069 queue_index = tcb_desc->queue_index;
1070
1071 priv = ieee80211_priv(dev);
1072
1073 if (tcb_desc->queue_index != TXCMD_QUEUE) {
1074 if (tx_urb->status == 0) {
1075 netif_trans_update(dev);
1076 priv->stats.txoktotal++;
1077 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
1078 priv->stats.txbytesunicast +=
1079 (skb->len - priv->ieee80211->tx_headroom);
1080 } else {
1081 priv->ieee80211->stats.tx_errors++;
1082 /* TODO */
1083 }
1084 }
1085
1086 /* free skb and tx_urb */
1087 dev_kfree_skb_any(skb);
1088 usb_free_urb(tx_urb);
1089 atomic_dec(&priv->tx_pending[queue_index]);
1090
1091 /*
1092 * Handle HW Beacon:
1093 * We had transfer our beacon frame to host controller at this moment.
1094 *
1095 *
1096 * Caution:
1097 * Handling the wait queue of command packets.
1098 * For Tx command packets, we must not do TCB fragment because it is
1099 * not handled right now. We must cut the packets to match the size of
1100 * TX_CMD_PKT before we send it.
1101 */
1102
1103 /* Handle MPDU in wait queue. */
1104 if (queue_index != BEACON_QUEUE) {
1105 /* Don't send data frame during scanning.*/
1106 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1107 (!(priv->ieee80211->queue_stop))) {
1108 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1109 if (skb)
1110 priv->ieee80211->softmac_hard_start_xmit(skb,
1111 dev);
1112
1113 return; /* avoid further processing AMSDU */
1114 }
1115 }
1116 }
1117
rtl8192_config_rate(struct net_device * dev,u16 * rate_config)1118 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1119 {
1120 struct r8192_priv *priv = ieee80211_priv(dev);
1121 struct ieee80211_network *net;
1122 u8 i = 0, basic_rate = 0;
1123
1124 net = &priv->ieee80211->current_network;
1125
1126 for (i = 0; i < net->rates_len; i++) {
1127 basic_rate = net->rates[i] & 0x7f;
1128 switch (basic_rate) {
1129 case MGN_1M:
1130 *rate_config |= RRSR_1M;
1131 break;
1132 case MGN_2M:
1133 *rate_config |= RRSR_2M;
1134 break;
1135 case MGN_5_5M:
1136 *rate_config |= RRSR_5_5M;
1137 break;
1138 case MGN_11M:
1139 *rate_config |= RRSR_11M;
1140 break;
1141 case MGN_6M:
1142 *rate_config |= RRSR_6M;
1143 break;
1144 case MGN_9M:
1145 *rate_config |= RRSR_9M;
1146 break;
1147 case MGN_12M:
1148 *rate_config |= RRSR_12M;
1149 break;
1150 case MGN_18M:
1151 *rate_config |= RRSR_18M;
1152 break;
1153 case MGN_24M:
1154 *rate_config |= RRSR_24M;
1155 break;
1156 case MGN_36M:
1157 *rate_config |= RRSR_36M;
1158 break;
1159 case MGN_48M:
1160 *rate_config |= RRSR_48M;
1161 break;
1162 case MGN_54M:
1163 *rate_config |= RRSR_54M;
1164 break;
1165 }
1166 }
1167 for (i = 0; i < net->rates_ex_len; i++) {
1168 basic_rate = net->rates_ex[i] & 0x7f;
1169 switch (basic_rate) {
1170 case MGN_1M:
1171 *rate_config |= RRSR_1M;
1172 break;
1173 case MGN_2M:
1174 *rate_config |= RRSR_2M;
1175 break;
1176 case MGN_5_5M:
1177 *rate_config |= RRSR_5_5M;
1178 break;
1179 case MGN_11M:
1180 *rate_config |= RRSR_11M;
1181 break;
1182 case MGN_6M:
1183 *rate_config |= RRSR_6M;
1184 break;
1185 case MGN_9M:
1186 *rate_config |= RRSR_9M;
1187 break;
1188 case MGN_12M:
1189 *rate_config |= RRSR_12M;
1190 break;
1191 case MGN_18M:
1192 *rate_config |= RRSR_18M;
1193 break;
1194 case MGN_24M:
1195 *rate_config |= RRSR_24M;
1196 break;
1197 case MGN_36M:
1198 *rate_config |= RRSR_36M;
1199 break;
1200 case MGN_48M:
1201 *rate_config |= RRSR_48M;
1202 break;
1203 case MGN_54M:
1204 *rate_config |= RRSR_54M;
1205 break;
1206 }
1207 }
1208 }
1209
1210
1211 #define SHORT_SLOT_TIME 9
1212 #define NON_SHORT_SLOT_TIME 20
1213
rtl8192_update_cap(struct net_device * dev,u16 cap)1214 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1215 {
1216 u32 tmp = 0;
1217 struct r8192_priv *priv = ieee80211_priv(dev);
1218 struct ieee80211_network *net = &priv->ieee80211->current_network;
1219
1220 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1221 tmp = priv->basic_rate;
1222 if (priv->short_preamble)
1223 tmp |= BRSR_AckShortPmb;
1224 write_nic_dword(dev, RRSR, tmp);
1225
1226 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1227 u8 slot_time = 0;
1228
1229 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1230 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1231 /* short slot time */
1232 slot_time = SHORT_SLOT_TIME;
1233 else /* long slot time */
1234 slot_time = NON_SHORT_SLOT_TIME;
1235 priv->slot_time = slot_time;
1236 write_nic_byte(dev, SLOT_TIME, slot_time);
1237 }
1238 }
1239
rtl8192_net_update(struct net_device * dev)1240 static void rtl8192_net_update(struct net_device *dev)
1241 {
1242 struct r8192_priv *priv = ieee80211_priv(dev);
1243 struct ieee80211_network *net;
1244 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1245 u16 rate_config = 0;
1246
1247 net = &priv->ieee80211->current_network;
1248
1249 rtl8192_config_rate(dev, &rate_config);
1250 priv->basic_rate = rate_config & 0x15f;
1251
1252 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1253 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1254
1255 rtl8192_update_msr(dev);
1256 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1257 write_nic_word(dev, ATIMWND, 2);
1258 write_nic_word(dev, BCN_DMATIME, 1023);
1259 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1260 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1261 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1262 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1263 /* TODO: BcnIFS may required to be changed on ASIC */
1264 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1265
1266 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1267 }
1268 }
1269
1270 /* temporary hw beacon is not used any more.
1271 * open it when necessary
1272 */
rtl819xusb_beacon_tx(struct net_device * dev,u16 tx_rate)1273 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1274 {
1275
1276 }
1277
rtl819xU_tx_cmd(struct net_device * dev,struct sk_buff * skb)1278 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1279 {
1280 struct r8192_priv *priv = ieee80211_priv(dev);
1281 int status;
1282 struct urb *tx_urb;
1283 unsigned int idx_pipe;
1284 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
1285 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1286 u8 queue_index = tcb_desc->queue_index;
1287
1288 atomic_inc(&priv->tx_pending[queue_index]);
1289 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1290 if (!tx_urb) {
1291 dev_kfree_skb(skb);
1292 return -ENOMEM;
1293 }
1294
1295 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1296 /* Tx descriptor ought to be set according to the skb->cb */
1297 pdesc->FirstSeg = 1;
1298 pdesc->LastSeg = 1;
1299 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1300 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1301 pdesc->OWN = 1;
1302 pdesc->LINIP = tcb_desc->bLastIniPkt;
1303
1304 /*---------------------------------------------------------------------
1305 * Fill up USB_OUT_CONTEXT.
1306 *---------------------------------------------------------------------
1307 */
1308 idx_pipe = 0x04;
1309 usb_fill_bulk_urb(tx_urb, priv->udev,
1310 usb_sndbulkpipe(priv->udev, idx_pipe),
1311 skb->data, skb->len, rtl8192_tx_isr, skb);
1312
1313 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1314
1315 if (!status)
1316 return 0;
1317
1318 DMESGE("Error TX CMD URB, error %d", status);
1319 return -1;
1320 }
1321
1322 /*
1323 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1324 * in TxFwInfo data structure
1325 * 2006.10.30 by Emily
1326 *
1327 * \param QUEUEID Software Queue
1328 */
MapHwQueueToFirmwareQueue(u8 QueueID)1329 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1330 {
1331 u8 QueueSelect = 0x0; /* default set to */
1332
1333 switch (QueueID) {
1334 case BE_QUEUE:
1335 QueueSelect = QSLT_BE;
1336 break;
1337
1338 case BK_QUEUE:
1339 QueueSelect = QSLT_BK;
1340 break;
1341
1342 case VO_QUEUE:
1343 QueueSelect = QSLT_VO;
1344 break;
1345
1346 case VI_QUEUE:
1347 QueueSelect = QSLT_VI;
1348 break;
1349 case MGNT_QUEUE:
1350 QueueSelect = QSLT_MGNT;
1351 break;
1352
1353 case BEACON_QUEUE:
1354 QueueSelect = QSLT_BEACON;
1355 break;
1356
1357 /* TODO: mark other queue selection until we verify it is OK */
1358 /* TODO: Remove Assertions */
1359 case TXCMD_QUEUE:
1360 QueueSelect = QSLT_CMD;
1361 break;
1362 case HIGH_QUEUE:
1363 QueueSelect = QSLT_HIGH;
1364 break;
1365
1366 default:
1367 RT_TRACE(COMP_ERR,
1368 "TransmitTCB(): Impossible Queue Selection: %d\n",
1369 QueueID);
1370 break;
1371 }
1372 return QueueSelect;
1373 }
1374
MRateToHwRate8190Pci(u8 rate)1375 static u8 MRateToHwRate8190Pci(u8 rate)
1376 {
1377 u8 ret = DESC90_RATE1M;
1378
1379 switch (rate) {
1380 case MGN_1M:
1381 ret = DESC90_RATE1M;
1382 break;
1383 case MGN_2M:
1384 ret = DESC90_RATE2M;
1385 break;
1386 case MGN_5_5M:
1387 ret = DESC90_RATE5_5M;
1388 break;
1389 case MGN_11M:
1390 ret = DESC90_RATE11M;
1391 break;
1392 case MGN_6M:
1393 ret = DESC90_RATE6M;
1394 break;
1395 case MGN_9M:
1396 ret = DESC90_RATE9M;
1397 break;
1398 case MGN_12M:
1399 ret = DESC90_RATE12M;
1400 break;
1401 case MGN_18M:
1402 ret = DESC90_RATE18M;
1403 break;
1404 case MGN_24M:
1405 ret = DESC90_RATE24M;
1406 break;
1407 case MGN_36M:
1408 ret = DESC90_RATE36M;
1409 break;
1410 case MGN_48M:
1411 ret = DESC90_RATE48M;
1412 break;
1413 case MGN_54M:
1414 ret = DESC90_RATE54M;
1415 break;
1416
1417 /* HT rate since here */
1418 case MGN_MCS0:
1419 ret = DESC90_RATEMCS0;
1420 break;
1421 case MGN_MCS1:
1422 ret = DESC90_RATEMCS1;
1423 break;
1424 case MGN_MCS2:
1425 ret = DESC90_RATEMCS2;
1426 break;
1427 case MGN_MCS3:
1428 ret = DESC90_RATEMCS3;
1429 break;
1430 case MGN_MCS4:
1431 ret = DESC90_RATEMCS4;
1432 break;
1433 case MGN_MCS5:
1434 ret = DESC90_RATEMCS5;
1435 break;
1436 case MGN_MCS6:
1437 ret = DESC90_RATEMCS6;
1438 break;
1439 case MGN_MCS7:
1440 ret = DESC90_RATEMCS7;
1441 break;
1442 case MGN_MCS8:
1443 ret = DESC90_RATEMCS8;
1444 break;
1445 case MGN_MCS9:
1446 ret = DESC90_RATEMCS9;
1447 break;
1448 case MGN_MCS10:
1449 ret = DESC90_RATEMCS10;
1450 break;
1451 case MGN_MCS11:
1452 ret = DESC90_RATEMCS11;
1453 break;
1454 case MGN_MCS12:
1455 ret = DESC90_RATEMCS12;
1456 break;
1457 case MGN_MCS13:
1458 ret = DESC90_RATEMCS13;
1459 break;
1460 case MGN_MCS14:
1461 ret = DESC90_RATEMCS14;
1462 break;
1463 case MGN_MCS15:
1464 ret = DESC90_RATEMCS15;
1465 break;
1466 case (0x80 | 0x20):
1467 ret = DESC90_RATEMCS32;
1468 break;
1469
1470 default:
1471 break;
1472 }
1473 return ret;
1474 }
1475
1476
QueryIsShort(u8 TxHT,u8 TxRate,struct cb_desc * tcb_desc)1477 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1478 {
1479 u8 tmp_Short;
1480
1481 tmp_Short = (TxHT == 1) ?
1482 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1483 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1484
1485 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1486 tmp_Short = 0;
1487
1488 return tmp_Short;
1489 }
1490
tx_zero_isr(struct urb * tx_urb)1491 static void tx_zero_isr(struct urb *tx_urb)
1492 {
1493 }
1494
1495 /*
1496 * The tx procedure is just as following,
1497 * skb->cb will contain all the following information,
1498 * priority, morefrag, rate, &dev.
1499 */
rtl8192_tx(struct net_device * dev,struct sk_buff * skb)1500 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1501 {
1502 struct r8192_priv *priv = ieee80211_priv(dev);
1503 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1504 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
1505 tx_fwinfo_819x_usb *tx_fwinfo =
1506 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1507 struct usb_device *udev = priv->udev;
1508 int pend;
1509 int status, rt = -1;
1510 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1511 unsigned int idx_pipe;
1512
1513 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1514 /* we are locked here so the two atomic_read and inc are executed
1515 * without interleaves
1516 * !!! For debug purpose
1517 */
1518 if (pend > MAX_TX_URB) {
1519 netdev_dbg(dev, "To discard skb packet!\n");
1520 dev_kfree_skb_any(skb);
1521 return -1;
1522 }
1523
1524 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1525 if (!tx_urb) {
1526 dev_kfree_skb_any(skb);
1527 return -ENOMEM;
1528 }
1529
1530 /* Fill Tx firmware info */
1531 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
1532 /* DWORD 0 */
1533 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1534 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1535 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1536 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1537 tcb_desc);
1538 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1539 tx_fwinfo->AllowAggregation = 1;
1540 /* DWORD 1 */
1541 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1542 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1543 } else {
1544 tx_fwinfo->AllowAggregation = 0;
1545 /* DWORD 1 */
1546 tx_fwinfo->RxMF = 0;
1547 tx_fwinfo->RxAMD = 0;
1548 }
1549
1550 /* Protection mode related */
1551 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1552 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1553 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1554 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1555 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1556 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1557 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1558 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1559 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1560
1561 /* Set Bandwidth and sub-channel settings. */
1562 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1563 if (tcb_desc->bPacketBW) {
1564 tx_fwinfo->TxBandwidth = 1;
1565 /* use duplicated mode */
1566 tx_fwinfo->TxSubCarrier = 0;
1567 } else {
1568 tx_fwinfo->TxBandwidth = 0;
1569 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1570 }
1571 } else {
1572 tx_fwinfo->TxBandwidth = 0;
1573 tx_fwinfo->TxSubCarrier = 0;
1574 }
1575
1576 /* Fill Tx descriptor */
1577 memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
1578 /* DWORD 0 */
1579 tx_desc->LINIP = 0;
1580 tx_desc->CmdInit = 1;
1581 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
1582 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1583
1584 /*DWORD 1*/
1585 tx_desc->SecCAMID = 0;
1586 tx_desc->RATid = tcb_desc->RATRIndex;
1587 tx_desc->NoEnc = 1;
1588 tx_desc->SecType = 0x0;
1589 if (tcb_desc->bHwSec) {
1590 switch (priv->ieee80211->pairwise_key_type) {
1591 case KEY_TYPE_WEP40:
1592 case KEY_TYPE_WEP104:
1593 tx_desc->SecType = 0x1;
1594 tx_desc->NoEnc = 0;
1595 break;
1596 case KEY_TYPE_TKIP:
1597 tx_desc->SecType = 0x2;
1598 tx_desc->NoEnc = 0;
1599 break;
1600 case KEY_TYPE_CCMP:
1601 tx_desc->SecType = 0x3;
1602 tx_desc->NoEnc = 0;
1603 break;
1604 case KEY_TYPE_NA:
1605 tx_desc->SecType = 0x0;
1606 tx_desc->NoEnc = 1;
1607 break;
1608 }
1609 }
1610
1611 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1612 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
1613
1614 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1615 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1616
1617 /* Fill fields that are required to be initialized in
1618 * all of the descriptors
1619 */
1620 /* DWORD 0 */
1621 tx_desc->FirstSeg = 1;
1622 tx_desc->LastSeg = 1;
1623 tx_desc->OWN = 1;
1624
1625 /* DWORD 2 */
1626 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1627 idx_pipe = 0x5;
1628
1629 /* To submit bulk urb */
1630 usb_fill_bulk_urb(tx_urb, udev,
1631 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1632 skb->len, rtl8192_tx_isr, skb);
1633
1634 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1635 if (!status) {
1636 /* We need to send 0 byte packet whenever
1637 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1638 * been transmitted. Otherwise, it will be halt to wait for
1639 * another packet.
1640 */
1641 bool bSend0Byte = false;
1642 u8 zero = 0;
1643
1644 if (udev->speed == USB_SPEED_HIGH) {
1645 if (skb->len > 0 && skb->len % 512 == 0)
1646 bSend0Byte = true;
1647 } else {
1648 if (skb->len > 0 && skb->len % 64 == 0)
1649 bSend0Byte = true;
1650 }
1651 if (bSend0Byte) {
1652 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1653 if (!tx_urb_zero) {
1654 rt = -ENOMEM;
1655 goto error;
1656 }
1657 usb_fill_bulk_urb(tx_urb_zero, udev,
1658 usb_sndbulkpipe(udev, idx_pipe),
1659 &zero, 0, tx_zero_isr, dev);
1660 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1661 if (status) {
1662 RT_TRACE(COMP_ERR,
1663 "Error TX URB for zero byte %d, error %d",
1664 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1665 status);
1666 goto error;
1667 }
1668 }
1669 netif_trans_update(dev);
1670 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1671 return 0;
1672 }
1673
1674 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1675 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1676 status);
1677
1678 error:
1679 dev_kfree_skb_any(skb);
1680 usb_free_urb(tx_urb);
1681 usb_free_urb(tx_urb_zero);
1682 return rt;
1683 }
1684
rtl8192_usb_initendpoints(struct net_device * dev)1685 static short rtl8192_usb_initendpoints(struct net_device *dev)
1686 {
1687 struct r8192_priv *priv = ieee80211_priv(dev);
1688
1689 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
1690 GFP_KERNEL);
1691 if (!priv->rx_urb)
1692 return -ENOMEM;
1693
1694 #ifndef JACKSON_NEW_RX
1695 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1696 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1697
1698 priv->rx_urb[i]->transfer_buffer =
1699 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1700
1701 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1702 }
1703 #endif
1704
1705 #ifdef THOMAS_BEACON
1706 {
1707 long align = 0;
1708 void *oldaddr, *newaddr;
1709
1710 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1711 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1712 if (!priv->oldaddr)
1713 return -ENOMEM;
1714 oldaddr = priv->oldaddr;
1715 align = ((long)oldaddr) & 3;
1716 if (align) {
1717 newaddr = oldaddr + 4 - align;
1718 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1719 } else {
1720 newaddr = oldaddr;
1721 priv->rx_urb[16]->transfer_buffer_length = 16;
1722 }
1723 priv->rx_urb[16]->transfer_buffer = newaddr;
1724 }
1725 #endif
1726
1727 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1728 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1729 GFP_KERNEL);
1730 if (!priv->pp_rxskb) {
1731 kfree(priv->rx_urb);
1732
1733 priv->pp_rxskb = NULL;
1734 priv->rx_urb = NULL;
1735
1736 DMESGE("Endpoint Alloc Failure");
1737 return -ENOMEM;
1738 }
1739
1740 netdev_dbg(dev, "End of initendpoints\n");
1741 return 0;
1742 }
1743
1744 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1745 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1746 {
1747 int i;
1748 struct r8192_priv *priv = ieee80211_priv(dev);
1749
1750 if (priv->rx_urb) {
1751 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1752 usb_kill_urb(priv->rx_urb[i]);
1753 usb_free_urb(priv->rx_urb[i]);
1754 }
1755 kfree(priv->rx_urb);
1756 priv->rx_urb = NULL;
1757 }
1758 kfree(priv->oldaddr);
1759 priv->oldaddr = NULL;
1760
1761 kfree(priv->pp_rxskb);
1762 priv->pp_rxskb = NULL;
1763 }
1764 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1765 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1766 {
1767 int i;
1768 struct r8192_priv *priv = ieee80211_priv(dev);
1769
1770 #ifndef JACKSON_NEW_RX
1771
1772 if (priv->rx_urb) {
1773 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1774 usb_kill_urb(priv->rx_urb[i]);
1775 kfree(priv->rx_urb[i]->transfer_buffer);
1776 usb_free_urb(priv->rx_urb[i]);
1777 }
1778 kfree(priv->rx_urb);
1779 priv->rx_urb = NULL;
1780 }
1781 #else
1782 kfree(priv->rx_urb);
1783 priv->rx_urb = NULL;
1784 kfree(priv->oldaddr);
1785 priv->oldaddr = NULL;
1786
1787 kfree(priv->pp_rxskb);
1788 priv->pp_rxskb = 0;
1789
1790 #endif
1791 }
1792 #endif
1793
1794 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1795 static void rtl8192_link_change(struct net_device *dev)
1796 {
1797 struct r8192_priv *priv = ieee80211_priv(dev);
1798 struct ieee80211_device *ieee = priv->ieee80211;
1799
1800 if (ieee->state == IEEE80211_LINKED) {
1801 rtl8192_net_update(dev);
1802 rtl8192_update_ratr_table(dev);
1803 /* Add this as in pure N mode, wep encryption will use software
1804 * way, but there is no chance to set this as wep will not set
1805 * group key in wext.
1806 */
1807 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1808 ieee->pairwise_key_type == KEY_TYPE_WEP104)
1809 EnableHWSecurityConfig8192(dev);
1810 }
1811 /*update timing params*/
1812 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1813 u32 reg = 0;
1814
1815 read_nic_dword(dev, RCR, ®);
1816 if (priv->ieee80211->state == IEEE80211_LINKED)
1817 priv->ReceiveConfig = reg |= RCR_CBSSID;
1818 else
1819 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1820 write_nic_dword(dev, RCR, reg);
1821 }
1822 }
1823
1824 static const struct ieee80211_qos_parameters def_qos_parameters = {
1825 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1826 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1827 {2, 2, 2, 2},/* aifs */
1828 {0, 0, 0, 0},/* flags */
1829 {0, 0, 0, 0} /* tx_op_limit */
1830 };
1831
1832
rtl8192_update_beacon(struct work_struct * work)1833 static void rtl8192_update_beacon(struct work_struct *work)
1834 {
1835 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1836 update_beacon_wq.work);
1837 struct net_device *dev = priv->ieee80211->dev;
1838 struct ieee80211_device *ieee = priv->ieee80211;
1839 struct ieee80211_network *net = &ieee->current_network;
1840
1841 if (ieee->pHTInfo->bCurrentHTSupport)
1842 HTUpdateSelfAndPeerSetting(ieee, net);
1843 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1844 net->bssht.bdRT2RTLongSlotTime;
1845 rtl8192_update_cap(dev, net->capability);
1846 }
1847
1848 /*
1849 * background support to run QoS activate functionality
1850 */
1851 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1852 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1853 static void rtl8192_qos_activate(struct work_struct *work)
1854 {
1855 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1856 qos_activate);
1857 struct net_device *dev = priv->ieee80211->dev;
1858 struct ieee80211_qos_parameters *qos_parameters =
1859 &priv->ieee80211->current_network.qos_data.parameters;
1860 u8 mode = priv->ieee80211->current_network.mode;
1861 u32 u1bAIFS;
1862 u32 u4bAcParam;
1863 u32 op_limit;
1864 u32 cw_max;
1865 u32 cw_min;
1866 int i;
1867
1868 mutex_lock(&priv->mutex);
1869 if (priv->ieee80211->state != IEEE80211_LINKED)
1870 goto success;
1871 RT_TRACE(COMP_QOS,
1872 "qos active process with associate response received\n");
1873 /* It better set slot time at first
1874 *
1875 * For we just support b/g mode at present, let the slot time at
1876 * 9/20 selection
1877 *
1878 * update the ac parameter to related registers
1879 */
1880 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1881 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1882 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1883 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1884 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1885 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1886 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1887 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1888 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1889 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1890 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1891 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1892 }
1893
1894 success:
1895 mutex_unlock(&priv->mutex);
1896 }
1897
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1898 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1899 int active_network,
1900 struct ieee80211_network *network)
1901 {
1902 int ret = 0;
1903 u32 size = sizeof(struct ieee80211_qos_parameters);
1904
1905 if (priv->ieee80211->state != IEEE80211_LINKED)
1906 return ret;
1907
1908 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1909 return ret;
1910
1911 if (network->flags & NETWORK_HAS_QOS_MASK) {
1912 if (active_network &&
1913 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1914 network->qos_data.active = network->qos_data.supported;
1915
1916 if ((network->qos_data.active == 1) && (active_network == 1) &&
1917 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1918 (network->qos_data.old_param_count !=
1919 network->qos_data.param_count)) {
1920 network->qos_data.old_param_count =
1921 network->qos_data.param_count;
1922 schedule_work(&priv->qos_activate);
1923 RT_TRACE(COMP_QOS,
1924 "QoS parameters change call qos_activate\n");
1925 }
1926 } else {
1927 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1928 &def_qos_parameters, size);
1929
1930 if ((network->qos_data.active == 1) && (active_network == 1)) {
1931 schedule_work(&priv->qos_activate);
1932 RT_TRACE(COMP_QOS,
1933 "QoS was disabled call qos_activate\n");
1934 }
1935 network->qos_data.active = 0;
1936 network->qos_data.supported = 0;
1937 }
1938
1939 return 0;
1940 }
1941
1942 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1943 static int rtl8192_handle_beacon(struct net_device *dev,
1944 struct ieee80211_beacon *beacon,
1945 struct ieee80211_network *network)
1946 {
1947 struct r8192_priv *priv = ieee80211_priv(dev);
1948
1949 rtl8192_qos_handle_probe_response(priv, 1, network);
1950 schedule_delayed_work(&priv->update_beacon_wq, 0);
1951 return 0;
1952 }
1953
1954 /*
1955 * handling the beaconing responses. if we get different QoS setting
1956 * off the network from the associated setting, adjust the QoS
1957 * setting
1958 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1959 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1960 struct ieee80211_network *network)
1961 {
1962 unsigned long flags;
1963 u32 size = sizeof(struct ieee80211_qos_parameters);
1964 int set_qos_param = 0;
1965
1966 if (!priv || !network)
1967 return 0;
1968
1969 if (priv->ieee80211->state != IEEE80211_LINKED)
1970 return 0;
1971
1972 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1973 return 0;
1974
1975 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1976 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1977 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1978 &network->qos_data.parameters,
1979 sizeof(struct ieee80211_qos_parameters));
1980 priv->ieee80211->current_network.qos_data.active = 1;
1981 set_qos_param = 1;
1982 /* update qos parameter for current network */
1983 priv->ieee80211->current_network.qos_data.old_param_count =
1984 priv->ieee80211->current_network.qos_data.param_count;
1985 priv->ieee80211->current_network.qos_data.param_count =
1986 network->qos_data.param_count;
1987 } else {
1988 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1989 &def_qos_parameters, size);
1990 priv->ieee80211->current_network.qos_data.active = 0;
1991 priv->ieee80211->current_network.qos_data.supported = 0;
1992 set_qos_param = 1;
1993 }
1994
1995 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1996
1997 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1998 network->flags,
1999 priv->ieee80211->current_network.qos_data.active);
2000 if (set_qos_param == 1)
2001 schedule_work(&priv->qos_activate);
2002
2003
2004 return 0;
2005 }
2006
2007
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)2008 static int rtl8192_handle_assoc_response(
2009 struct net_device *dev,
2010 struct ieee80211_assoc_response_frame *resp,
2011 struct ieee80211_network *network)
2012 {
2013 struct r8192_priv *priv = ieee80211_priv(dev);
2014
2015 rtl8192_qos_association_resp(priv, network);
2016 return 0;
2017 }
2018
2019
rtl8192_update_ratr_table(struct net_device * dev)2020 static void rtl8192_update_ratr_table(struct net_device *dev)
2021 {
2022 struct r8192_priv *priv = ieee80211_priv(dev);
2023 struct ieee80211_device *ieee = priv->ieee80211;
2024 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2025 u32 ratr_value = 0;
2026 u8 rate_index = 0;
2027
2028 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2029 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2030 switch (ieee->mode) {
2031 case IEEE_A:
2032 ratr_value &= 0x00000FF0;
2033 break;
2034 case IEEE_B:
2035 ratr_value &= 0x0000000F;
2036 break;
2037 case IEEE_G:
2038 ratr_value &= 0x00000FF7;
2039 break;
2040 case IEEE_N_24G:
2041 case IEEE_N_5G:
2042 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2043 ratr_value &= 0x0007F007;
2044 } else {
2045 if (priv->rf_type == RF_1T2R)
2046 ratr_value &= 0x000FF007;
2047 else
2048 ratr_value &= 0x0F81F007;
2049 }
2050 break;
2051 default:
2052 break;
2053 }
2054 ratr_value &= 0x0FFFFFFF;
2055 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2056 ratr_value |= 0x80000000;
2057 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2058 ieee->pHTInfo->bCurShortGI20MHz)
2059 ratr_value |= 0x80000000;
2060 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2061 write_nic_byte(dev, UFWP, 1);
2062 }
2063
2064 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2065 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)2066 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2067 {
2068 struct r8192_priv *priv = ieee80211_priv(dev);
2069 struct ieee80211_device *ieee = priv->ieee80211;
2070 struct ieee80211_network *network = &ieee->current_network;
2071 int wpa_ie_len = ieee->wpa_ie_len;
2072 struct ieee80211_crypt_data *crypt;
2073 int encrypt;
2074
2075 crypt = ieee->crypt[ieee->tx_keyidx];
2076 /* we use connecting AP's capability instead of only security config
2077 * on our driver to distinguish whether it should use N mode or G mode
2078 */
2079 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2080 (ieee->host_encrypt && crypt && crypt->ops &&
2081 (strcmp(crypt->ops->name, "WEP") == 0));
2082
2083 /* simply judge */
2084 if (encrypt && (wpa_ie_len == 0)) {
2085 /* wep encryption, no N mode setting */
2086 return false;
2087 } else if ((wpa_ie_len != 0)) {
2088 /* parse pairwise key type */
2089 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))))
2090 return true;
2091 else
2092 return false;
2093 } else {
2094 return true;
2095 }
2096
2097 return true;
2098 }
2099
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)2100 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2101 {
2102 struct r8192_priv *priv = ieee80211_priv(dev);
2103
2104 return priv->ieee80211->bHalfWirelessN24GMode;
2105 }
2106
rtl8192_refresh_supportrate(struct r8192_priv * priv)2107 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2108 {
2109 struct ieee80211_device *ieee = priv->ieee80211;
2110 /* We do not consider set support rate for ABG mode, only
2111 * HT MCS rate is set here.
2112 */
2113 if (ieee->mode == WIRELESS_MODE_N_24G ||
2114 ieee->mode == WIRELESS_MODE_N_5G)
2115 memcpy(ieee->Regdot11HTOperationalRateSet,
2116 ieee->RegHTSuppRateSet, 16);
2117 else
2118 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2119 }
2120
rtl8192_getSupportedWireleeMode(struct net_device * dev)2121 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2122 {
2123 struct r8192_priv *priv = ieee80211_priv(dev);
2124 u8 ret = 0;
2125
2126 switch (priv->rf_chip) {
2127 case RF_8225:
2128 case RF_8256:
2129 case RF_PSEUDO_11N:
2130 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2131 break;
2132 case RF_8258:
2133 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2134 break;
2135 default:
2136 ret = WIRELESS_MODE_B;
2137 break;
2138 }
2139 return ret;
2140 }
2141
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2142 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2143 {
2144 struct r8192_priv *priv = ieee80211_priv(dev);
2145 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2146
2147 if (wireless_mode == WIRELESS_MODE_AUTO ||
2148 (wireless_mode & bSupportMode) == 0) {
2149 if (bSupportMode & WIRELESS_MODE_N_24G) {
2150 wireless_mode = WIRELESS_MODE_N_24G;
2151 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2152 wireless_mode = WIRELESS_MODE_N_5G;
2153 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2154 wireless_mode = WIRELESS_MODE_A;
2155 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2156 wireless_mode = WIRELESS_MODE_G;
2157 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2158 wireless_mode = WIRELESS_MODE_B;
2159 } else {
2160 RT_TRACE(COMP_ERR,
2161 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2162 __func__, bSupportMode);
2163 wireless_mode = WIRELESS_MODE_B;
2164 }
2165 }
2166 #ifdef TO_DO_LIST
2167 /* TODO: this function doesn't work well at this time,
2168 * we should wait for FPGA
2169 */
2170 ActUpdateChannelAccessSetting(
2171 pAdapter, pHalData->CurrentWirelessMode,
2172 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2173 #endif
2174 priv->ieee80211->mode = wireless_mode;
2175
2176 if (wireless_mode == WIRELESS_MODE_N_24G ||
2177 wireless_mode == WIRELESS_MODE_N_5G)
2178 priv->ieee80211->pHTInfo->bEnableHT = 1;
2179 else
2180 priv->ieee80211->pHTInfo->bEnableHT = 0;
2181 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2182 rtl8192_refresh_supportrate(priv);
2183 }
2184
2185 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2186 static void rtl8192_init_priv_variable(struct net_device *dev)
2187 {
2188 struct r8192_priv *priv = ieee80211_priv(dev);
2189 u8 i;
2190
2191 priv->card_8192 = NIC_8192U;
2192 priv->chan = 1; /* set to channel 1 */
2193 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2194 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2195 priv->ieee80211->ieee_up = 0;
2196 priv->retry_rts = DEFAULT_RETRY_RTS;
2197 priv->retry_data = DEFAULT_RETRY_DATA;
2198 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2199 priv->ieee80211->rate = 110; /* 11 mbps */
2200 priv->ieee80211->short_slot = 1;
2201 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2202 priv->CckPwEnl = 6;
2203 /* for silent reset */
2204 priv->IrpPendingCount = 1;
2205 priv->ResetProgress = RESET_TYPE_NORESET;
2206 priv->bForcedSilentReset = false;
2207 priv->bDisableNormalResetCheck = false;
2208 priv->force_reset = false;
2209
2210 /* we don't use FW read/write RF until stable firmware is available. */
2211 priv->ieee80211->FwRWRF = 0;
2212 priv->ieee80211->current_network.beacon_interval =
2213 DEFAULT_BEACONINTERVAL;
2214 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2215 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2216 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2217 IEEE_SOFTMAC_BEACONS;
2218
2219 priv->ieee80211->active_scan = 1;
2220 priv->ieee80211->modulation =
2221 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2222 priv->ieee80211->host_encrypt = 1;
2223 priv->ieee80211->host_decrypt = 1;
2224 priv->ieee80211->start_send_beacons = NULL;
2225 priv->ieee80211->stop_send_beacons = NULL;
2226 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2227 priv->ieee80211->set_chan = rtl8192_set_chan;
2228 priv->ieee80211->link_change = rtl8192_link_change;
2229 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2230 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2231 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2232 priv->ieee80211->init_wmmparam_flag = 0;
2233 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2234 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2235 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2236 priv->ieee80211->qos_support = 1;
2237
2238 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2239 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2240 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2241
2242 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2243 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2244 GetHalfNmodeSupportByAPs819xUsb;
2245 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2246
2247 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2248 priv->card_type = USB;
2249 #ifdef TO_DO_LIST
2250 if (Adapter->bInHctTest) {
2251 pHalData->ShortRetryLimit = 7;
2252 pHalData->LongRetryLimit = 7;
2253 }
2254 #endif
2255 priv->ShortRetryLimit = 0x30;
2256 priv->LongRetryLimit = 0x30;
2257 priv->EarlyRxThreshold = 7;
2258 priv->enable_gpio0 = 0;
2259 priv->TransmitConfig =
2260 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2261 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2262 /* Short retry limit */
2263 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2264 /* Long retry limit */
2265 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2266 /* FALSE: HW provides PLCP length and LENGEXT
2267 * TRUE: SW provides them
2268 */
2269 (false ? TCR_SAT : 0);
2270 #ifdef TO_DO_LIST
2271 if (Adapter->bInHctTest)
2272 pHalData->ReceiveConfig =
2273 pHalData->CSMethod |
2274 /* accept management/data */
2275 RCR_AMF | RCR_ADF |
2276 /* accept control frame for SW
2277 * AP needs PS-poll
2278 */
2279 RCR_ACF |
2280 /* accept BC/MC/UC */
2281 RCR_AB | RCR_AM | RCR_APM |
2282 /* accept ICV/CRC error
2283 * packet
2284 */
2285 RCR_AICV | RCR_ACRC32 |
2286 /* Max DMA Burst Size per Tx
2287 * DMA Burst, 7: unlimited.
2288 */
2289 ((u32)7 << RCR_MXDMA_OFFSET) |
2290 /* Rx FIFO Threshold,
2291 * 7: No Rx threshold.
2292 */
2293 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2294 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2295 else
2296
2297 #endif
2298 priv->ReceiveConfig =
2299 /* accept management/data */
2300 RCR_AMF | RCR_ADF |
2301 /* accept control frame for SW AP needs PS-poll */
2302 RCR_ACF |
2303 /* accept BC/MC/UC */
2304 RCR_AB | RCR_AM | RCR_APM |
2305 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2306 ((u32)7 << RCR_MXDMA_OFFSET) |
2307 /* Rx FIFO Threshold, 7: No Rx threshold. */
2308 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2309 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2310
2311 priv->AcmControl = 0;
2312 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2313
2314 /* rx related queue */
2315 skb_queue_head_init(&priv->rx_queue);
2316 skb_queue_head_init(&priv->skb_queue);
2317
2318 /* Tx related queue */
2319 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2320 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2321 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2322 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2323 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2324 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2325 priv->rf_set_chan = rtl8192_phy_SwChnl;
2326 }
2327
2328 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2329 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2330 {
2331 spin_lock_init(&priv->tx_lock);
2332 spin_lock_init(&priv->irq_lock);
2333 mutex_init(&priv->wx_mutex);
2334 mutex_init(&priv->mutex);
2335 }
2336
2337 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2338
2339 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2340 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2341 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2342 static void rtl8192_init_priv_task(struct net_device *dev)
2343 {
2344 struct r8192_priv *priv = ieee80211_priv(dev);
2345
2346
2347 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2348
2349 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2350 rtl819x_watchdog_wqcallback);
2351 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2352 dm_txpower_trackingcallback);
2353 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2354 dm_rf_pathcheck_workitemcallback);
2355 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2356 rtl8192_update_beacon);
2357 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2358 InitialGainOperateWorkItemCallBack);
2359 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2360
2361 tasklet_init(&priv->irq_rx_tasklet,
2362 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2363 (unsigned long)priv);
2364 }
2365
rtl8192_get_eeprom_size(struct net_device * dev)2366 static void rtl8192_get_eeprom_size(struct net_device *dev)
2367 {
2368 u16 curCR = 0;
2369 struct r8192_priv *priv = ieee80211_priv(dev);
2370
2371 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2372 read_nic_word_E(dev, EPROM_CMD, &curCR);
2373 RT_TRACE(COMP_EPROM,
2374 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2375 /* whether need I consider BIT(5?) */
2376 priv->epromtype =
2377 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2378 RT_TRACE(COMP_EPROM,
2379 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2380 }
2381
2382 /* used to swap endian. as ntohl & htonl are not necessary
2383 * to swap endian, so use this instead.
2384 */
endian_swap(u16 * data)2385 static inline u16 endian_swap(u16 *data)
2386 {
2387 u16 tmp = *data;
2388 *data = (tmp >> 8) | (tmp << 8);
2389 return *data;
2390 }
2391
rtl8192_read_eeprom_info(struct net_device * dev)2392 static int rtl8192_read_eeprom_info(struct net_device *dev)
2393 {
2394 u16 wEPROM_ID = 0;
2395 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2396 u8 bLoad_From_EEPOM = false;
2397 struct r8192_priv *priv = ieee80211_priv(dev);
2398 u16 tmpValue = 0;
2399 int i;
2400 int ret;
2401
2402 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2403 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2404 if (ret < 0)
2405 return ret;
2406 wEPROM_ID = (u16)ret;
2407 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2408
2409 if (wEPROM_ID != RTL8190_EEPROM_ID)
2410 RT_TRACE(COMP_ERR,
2411 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2412 wEPROM_ID, RTL8190_EEPROM_ID);
2413 else
2414 bLoad_From_EEPOM = true;
2415
2416 if (bLoad_From_EEPOM) {
2417 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2418 ret = eprom_read(dev, EEPROM_VID >> 1);
2419 if (ret < 0)
2420 return ret;
2421 tmpValue = (u16)ret;
2422 priv->eeprom_vid = endian_swap(&tmpValue);
2423 ret = eprom_read(dev, EEPROM_PID >> 1);
2424 if (ret < 0)
2425 return ret;
2426 priv->eeprom_pid = (u16)ret;
2427 ret = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2428 if (ret < 0)
2429 return ret;
2430 tmpValue = (u16)ret;
2431 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2432 priv->btxpowerdata_readfromEEPORM = true;
2433 ret = eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2434 if (ret < 0)
2435 return ret;
2436 priv->eeprom_CustomerID = (u16)ret;
2437 } else {
2438 priv->eeprom_vid = 0;
2439 priv->eeprom_pid = 0;
2440 priv->card_8192_version = VERSION_819xU_B;
2441 priv->eeprom_ChannelPlan = 0;
2442 priv->eeprom_CustomerID = 0;
2443 }
2444 RT_TRACE(COMP_EPROM,
2445 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2446 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2447 priv->eeprom_ChannelPlan);
2448 /* set channelplan from eeprom */
2449 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2450 if (bLoad_From_EEPOM) {
2451 int i;
2452
2453 for (i = 0; i < 6; i += 2) {
2454 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2455 if (ret < 0)
2456 return ret;
2457 *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2458 }
2459 } else {
2460 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2461 /* should I set IDR0 here? */
2462 }
2463 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2464 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2465 priv->rf_chip = RF_8256;
2466
2467 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2468 /* read Tx power gain offset of legacy OFDM to HT rate */
2469 if (bLoad_From_EEPOM) {
2470 ret = eprom_read(dev, (EEPROM_TxPowerDiff >> 1));
2471 if (ret < 0)
2472 return ret;
2473 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2474 } else
2475 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2476 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2477 /* read ThermalMeter from EEPROM */
2478 if (bLoad_From_EEPOM) {
2479 ret = eprom_read(dev, (EEPROM_ThermalMeter >> 1));
2480 if (ret < 0)
2481 return ret;
2482 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2483 } else
2484 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2485 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2486 /* for tx power track */
2487 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2488 /* read antenna tx power offset of B/C/D to A from EEPROM */
2489 if (bLoad_From_EEPOM) {
2490 ret = eprom_read(dev, (EEPROM_PwDiff >> 1));
2491 if (ret < 0)
2492 return ret;
2493 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2494 } else
2495 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2496 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2497 /* Read CrystalCap from EEPROM */
2498 if (bLoad_From_EEPOM) {
2499 ret = eprom_read(dev, (EEPROM_CrystalCap >> 1));
2500 if (ret < 0)
2501 return ret;
2502 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2503 } else
2504 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2505 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2506 /* get per-channel Tx power level */
2507 if (bLoad_From_EEPOM) {
2508 ret = eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1));
2509 if (ret < 0)
2510 return ret;
2511 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2512 } else
2513 priv->EEPROM_Def_Ver = 1;
2514 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2515 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2516 int i;
2517
2518 if (bLoad_From_EEPOM) {
2519 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1));
2520 if (ret < 0)
2521 return ret;
2522 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8;
2523 } else
2524 priv->EEPROMTxPowerLevelCCK = 0x10;
2525 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2526 for (i = 0; i < 3; i++) {
2527 if (bLoad_From_EEPOM) {
2528 ret = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2529 if (ret < 0)
2530 return ret;
2531 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2532 tmpValue = (u16)ret & 0x00ff;
2533 else
2534 tmpValue = ((u16)ret & 0xff00) >> 8;
2535 } else {
2536 tmpValue = 0x10;
2537 }
2538 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2539 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2540 }
2541 } else if (priv->EEPROM_Def_Ver == 1) {
2542 if (bLoad_From_EEPOM) {
2543 ret = eprom_read(dev, EEPROM_TxPwIndex_CCK_V1 >> 1);
2544 if (ret < 0)
2545 return ret;
2546 tmpValue = ((u16)ret & 0xff00) >> 8;
2547 } else {
2548 tmpValue = 0x10;
2549 }
2550 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2551
2552 if (bLoad_From_EEPOM) {
2553 ret = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2554 if (ret < 0)
2555 return ret;
2556 tmpValue = (u16)ret;
2557 } else
2558 tmpValue = 0x1010;
2559 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2560 if (bLoad_From_EEPOM)
2561 tmpValue = eprom_read(dev,
2562 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2563 else
2564 tmpValue = 0x1010;
2565 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2566 if (bLoad_From_EEPOM)
2567 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2568 else
2569 tmpValue = 0x10;
2570 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2571 } /* endif EEPROM_Def_Ver == 1 */
2572
2573 /* update HAL variables */
2574 for (i = 0; i < 14; i++) {
2575 if (i <= 3)
2576 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2577 else if (i >= 4 && i <= 9)
2578 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2579 else
2580 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2581 }
2582
2583 for (i = 0; i < 14; i++) {
2584 if (priv->EEPROM_Def_Ver == 0) {
2585 if (i <= 3)
2586 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2587 else if (i >= 4 && i <= 9)
2588 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2589 else
2590 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2591 } else if (priv->EEPROM_Def_Ver == 1) {
2592 if (i <= 3)
2593 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2594 else if (i >= 4 && i <= 9)
2595 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2596 else
2597 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2598 }
2599 }
2600 priv->TxPowerDiff = priv->EEPROMPwDiff;
2601 /* Antenna B gain offset to antenna A, bit0~3 */
2602 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2603 /* Antenna C gain offset to antenna A, bit4~7 */
2604 priv->AntennaTxPwDiff[1] =
2605 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2606 /* CrystalCap, bit12~15 */
2607 priv->CrystalCap = priv->EEPROMCrystalCap;
2608 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2609 * 92U does not enable TX power tracking.
2610 */
2611 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2612 } /* end if VersionID == VERSION_819xU_A */
2613
2614 /* for dlink led */
2615 switch (priv->eeprom_CustomerID) {
2616 case EEPROM_CID_RUNTOP:
2617 priv->CustomerID = RT_CID_819x_RUNTOP;
2618 break;
2619
2620 case EEPROM_CID_DLINK:
2621 priv->CustomerID = RT_CID_DLINK;
2622 break;
2623
2624 default:
2625 priv->CustomerID = RT_CID_DEFAULT;
2626 break;
2627 }
2628
2629 switch (priv->CustomerID) {
2630 case RT_CID_819x_RUNTOP:
2631 priv->LedStrategy = SW_LED_MODE2;
2632 break;
2633
2634 case RT_CID_DLINK:
2635 priv->LedStrategy = SW_LED_MODE4;
2636 break;
2637
2638 default:
2639 priv->LedStrategy = SW_LED_MODE0;
2640 break;
2641 }
2642
2643
2644 if (priv->rf_type == RF_1T2R)
2645 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2646 else
2647 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2648
2649 /* We can only know RF type in the function. So we have to init
2650 * DIG RATR table again.
2651 */
2652 init_rate_adaptive(dev);
2653
2654 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2655
2656 return 0;
2657 }
2658
rtl8192_get_channel_map(struct net_device * dev)2659 static short rtl8192_get_channel_map(struct net_device *dev)
2660 {
2661 struct r8192_priv *priv = ieee80211_priv(dev);
2662
2663 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2664 netdev_err(dev,
2665 "rtl8180_init: Error channel plan! Set to default.\n");
2666 priv->ChannelPlan = 0;
2667 }
2668 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2669
2670 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2671 return 0;
2672 }
2673
rtl8192_init(struct net_device * dev)2674 static short rtl8192_init(struct net_device *dev)
2675 {
2676 struct r8192_priv *priv = ieee80211_priv(dev);
2677 int err;
2678
2679 memset(&(priv->stats), 0, sizeof(struct Stats));
2680 memset(priv->txqueue_to_outpipemap, 0, 9);
2681 #ifdef PIPE12
2682 {
2683 int i = 0;
2684 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2685
2686 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2687 }
2688 #else
2689 {
2690 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2691
2692 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2693 }
2694 #endif
2695 rtl8192_init_priv_variable(dev);
2696 rtl8192_init_priv_lock(priv);
2697 rtl8192_init_priv_task(dev);
2698 rtl8192_get_eeprom_size(dev);
2699 err = rtl8192_read_eeprom_info(dev);
2700 if (err) {
2701 DMESG("Reading EEPROM info failed");
2702 kfree(priv->pFirmware);
2703 priv->pFirmware = NULL;
2704 free_ieee80211(dev);
2705 return err;
2706 }
2707 rtl8192_get_channel_map(dev);
2708 init_hal_dm(dev);
2709 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2710 (unsigned long)dev);
2711 if (rtl8192_usb_initendpoints(dev) != 0) {
2712 DMESG("Endopoints initialization failed");
2713 return -ENOMEM;
2714 }
2715
2716 return 0;
2717 }
2718
2719 /******************************************************************************
2720 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2721 * not to do all the hw config as its name says
2722 * input: net_device dev
2723 * output: none
2724 * return: none
2725 * notice: This part need to modified according to the rate set we filtered
2726 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2727 static void rtl8192_hwconfig(struct net_device *dev)
2728 {
2729 u32 regRATR = 0, regRRSR = 0;
2730 u8 regBwOpMode = 0, regTmp = 0;
2731 struct r8192_priv *priv = ieee80211_priv(dev);
2732 u32 ratr_value = 0;
2733
2734 /* Set RRSR, RATR, and BW_OPMODE registers */
2735 switch (priv->ieee80211->mode) {
2736 case WIRELESS_MODE_B:
2737 regBwOpMode = BW_OPMODE_20MHZ;
2738 regRATR = RATE_ALL_CCK;
2739 regRRSR = RATE_ALL_CCK;
2740 break;
2741 case WIRELESS_MODE_A:
2742 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2743 regRATR = RATE_ALL_OFDM_AG;
2744 regRRSR = RATE_ALL_OFDM_AG;
2745 break;
2746 case WIRELESS_MODE_G:
2747 regBwOpMode = BW_OPMODE_20MHZ;
2748 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2749 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2750 break;
2751 case WIRELESS_MODE_AUTO:
2752 #ifdef TO_DO_LIST
2753 if (Adapter->bInHctTest) {
2754 regBwOpMode = BW_OPMODE_20MHZ;
2755 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2756 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2757 } else
2758 #endif
2759 {
2760 regBwOpMode = BW_OPMODE_20MHZ;
2761 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2762 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2763 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2764 }
2765 break;
2766 case WIRELESS_MODE_N_24G:
2767 /* It support CCK rate by default. CCK rate will be filtered
2768 * out only when associated AP does not support it.
2769 */
2770 regBwOpMode = BW_OPMODE_20MHZ;
2771 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2772 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2773 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2774 break;
2775 case WIRELESS_MODE_N_5G:
2776 regBwOpMode = BW_OPMODE_5G;
2777 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2778 RATE_ALL_OFDM_2SS;
2779 regRRSR = RATE_ALL_OFDM_AG;
2780 break;
2781 }
2782
2783 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2784 ratr_value = regRATR;
2785 if (priv->rf_type == RF_1T2R)
2786 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2787 write_nic_dword(dev, RATR0, ratr_value);
2788 write_nic_byte(dev, UFWP, 1);
2789 read_nic_byte(dev, 0x313, ®Tmp);
2790 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2791 write_nic_dword(dev, RRSR, regRRSR);
2792
2793 /* Set Retry Limit here */
2794 write_nic_word(dev, RETRY_LIMIT,
2795 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2796 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2797 /* Set Contention Window here */
2798
2799 /* Set Tx AGC */
2800
2801 /* Set Tx Antenna including Feedback control */
2802
2803 /* Set Auto Rate fallback control */
2804 }
2805
2806
2807 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2808 static bool rtl8192_adapter_start(struct net_device *dev)
2809 {
2810 struct r8192_priv *priv = ieee80211_priv(dev);
2811 u32 dwRegRead = 0;
2812 bool init_status = true;
2813 u8 SECR_value = 0x0;
2814 u8 tmp;
2815
2816 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2817 priv->Rf_Mode = RF_OP_By_SW_3wire;
2818 /* for ASIC power on sequence */
2819 write_nic_byte_E(dev, 0x5f, 0x80);
2820 mdelay(50);
2821 write_nic_byte_E(dev, 0x5f, 0xf0);
2822 write_nic_byte_E(dev, 0x5d, 0x00);
2823 write_nic_byte_E(dev, 0x5e, 0x80);
2824 write_nic_byte(dev, 0x17, 0x37);
2825 mdelay(10);
2826 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2827 /* config CPUReset Register */
2828 /* Firmware Reset or not? */
2829 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2830 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2831 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2832 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2833 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2834 else
2835 RT_TRACE(COMP_ERR,
2836 "ERROR in %s(): undefined firmware state(%d)\n",
2837 __func__, priv->pFirmware->firmware_status);
2838
2839 write_nic_dword(dev, CPU_GEN, dwRegRead);
2840 /* config BB. */
2841 rtl8192_BBConfig(dev);
2842
2843 /* Loopback mode or not */
2844 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2845
2846 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2847 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2848 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2849 CPU_GEN_NO_LOOPBACK_SET;
2850 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2851 dwRegRead |= CPU_CCK_LOOPBACK;
2852 else
2853 RT_TRACE(COMP_ERR,
2854 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2855 __func__, priv->LoopbackMode);
2856
2857 write_nic_dword(dev, CPU_GEN, dwRegRead);
2858
2859 /* after reset cpu, we need wait for a seconds to write in register. */
2860 udelay(500);
2861
2862 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2863 read_nic_byte_E(dev, 0x5f, &tmp);
2864 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2865
2866 /* Set Hardware */
2867 rtl8192_hwconfig(dev);
2868
2869 /* turn on Tx/Rx */
2870 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2871
2872 /* set IDR0 here */
2873 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2874 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2875
2876 /* set RCR */
2877 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2878
2879 /* Initialize Number of Reserved Pages in Firmware Queue */
2880 write_nic_dword(dev, RQPN1,
2881 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2882 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2883 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2884 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2885 write_nic_dword(dev, RQPN2,
2886 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2887 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2888 write_nic_dword(dev, RQPN3,
2889 APPLIED_RESERVED_QUEUE_IN_FW |
2890 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2891 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2892
2893 /* Set AckTimeout */
2894 /* TODO: (it value is only for FPGA version). need to be changed!! */
2895 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2896
2897 if (priv->ResetProgress == RESET_TYPE_NORESET)
2898 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2899 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2900 CamResetAllEntry(dev);
2901 SECR_value |= SCR_TxEncEnable;
2902 SECR_value |= SCR_RxDecEnable;
2903 SECR_value |= SCR_NoSKMC;
2904 write_nic_byte(dev, SECR, SECR_value);
2905 }
2906
2907 /* Beacon related */
2908 write_nic_word(dev, ATIMWND, 2);
2909 write_nic_word(dev, BCN_INTERVAL, 100);
2910
2911 #define DEFAULT_EDCA 0x005e4332
2912 {
2913 int i;
2914
2915 for (i = 0; i < QOS_QUEUE_NUM; i++)
2916 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2917 }
2918
2919 rtl8192_phy_configmac(dev);
2920
2921 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2922 rtl8192_phy_getTxPower(dev);
2923 rtl8192_phy_setTxPower(dev, priv->chan);
2924 }
2925
2926 /* Firmware download */
2927 init_status = init_firmware(dev);
2928 if (!init_status) {
2929 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2930 __func__);
2931 return init_status;
2932 }
2933 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2934
2935 #ifdef TO_DO_LIST
2936 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2937 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2938 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2939 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2940 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2941 /* Those actions will be discard in MgntActSet_RF_State
2942 * because of the same state
2943 */
2944 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2945 PHY_SetRFReg(Adapter,
2946 (RF90_RADIO_PATH_E)eRFPath,
2947 0x4, 0xC00, 0x0);
2948 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2949 /* H/W or S/W RF OFF before sleep. */
2950 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2951 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2952 pMgntInfo->RfOffReason));
2953 MgntActSet_RF_State(Adapter,
2954 eRfOff,
2955 pMgntInfo->RfOffReason);
2956 } else {
2957 pHalData->eRFPowerState = eRfOn;
2958 pMgntInfo->RfOffReason = 0;
2959 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2960 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2961 }
2962 } else {
2963 if (pHalData->eRFPowerState == eRfOff) {
2964 MgntActSet_RF_State(Adapter,
2965 eRfOff,
2966 pMgntInfo->RfOffReason);
2967 /* Those actions will be discard in MgntActSet_RF_State
2968 * because of the same state
2969 */
2970 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2971 PHY_SetRFReg(Adapter,
2972 (RF90_RADIO_PATH_E)eRFPath,
2973 0x4, 0xC00, 0x0);
2974 }
2975 }
2976 #endif
2977 /* config RF. */
2978 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2979 rtl8192_phy_RFConfig(dev);
2980 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2981 }
2982
2983
2984 if (priv->ieee80211->FwRWRF)
2985 /* We can force firmware to do RF-R/W */
2986 priv->Rf_Mode = RF_OP_By_FW;
2987 else
2988 priv->Rf_Mode = RF_OP_By_SW_3wire;
2989
2990
2991 rtl8192_phy_updateInitGain(dev);
2992 /*--set CCK and OFDM Block "ON"--*/
2993 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2994 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2995
2996 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2997 /* if D or C cut */
2998 u8 tmpvalue;
2999
3000 read_nic_byte(dev, 0x301, &tmpvalue);
3001 if (tmpvalue == 0x03) {
3002 priv->bDcut = true;
3003 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
3004 } else {
3005 priv->bDcut = false;
3006 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
3007 }
3008 dm_initialize_txpower_tracking(dev);
3009
3010 if (priv->bDcut) {
3011 u32 i, TempCCk;
3012 u32 tmpRegA = rtl8192_QueryBBReg(dev,
3013 rOFDM0_XATxIQImbalance,
3014 bMaskDWord);
3015
3016 for (i = 0; i < TxBBGainTableLength; i++) {
3017 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
3018 priv->rfa_txpowertrackingindex = (u8)i;
3019 priv->rfa_txpowertrackingindex_real =
3020 (u8)i;
3021 priv->rfa_txpowertracking_default =
3022 priv->rfa_txpowertrackingindex;
3023 break;
3024 }
3025 }
3026
3027 TempCCk = rtl8192_QueryBBReg(dev,
3028 rCCK0_TxFilter1,
3029 bMaskByte2);
3030
3031 for (i = 0; i < CCKTxBBGainTableLength; i++) {
3032 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
3033 priv->cck_present_attenuation_20Mdefault = (u8)i;
3034 break;
3035 }
3036 }
3037 priv->cck_present_attenuation_40Mdefault = 0;
3038 priv->cck_present_attenuation_difference = 0;
3039 priv->cck_present_attenuation =
3040 priv->cck_present_attenuation_20Mdefault;
3041 }
3042 }
3043 write_nic_byte(dev, 0x87, 0x0);
3044
3045
3046 return init_status;
3047 }
3048
3049 /* this configures registers for beacon tx and enables it via
3050 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
3051 * be used to stop beacon transmission
3052 */
3053 /***************************************************************************
3054 * -------------------------------NET STUFF---------------------------
3055 ***************************************************************************/
3056
rtl8192_stats(struct net_device * dev)3057 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3058 {
3059 struct r8192_priv *priv = ieee80211_priv(dev);
3060
3061 return &priv->ieee80211->stats;
3062 }
3063
HalTxCheckStuck819xUsb(struct net_device * dev)3064 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3065 {
3066 struct r8192_priv *priv = ieee80211_priv(dev);
3067 u16 RegTxCounter;
3068 bool bStuck = false;
3069
3070 read_nic_word(dev, 0x128, &RegTxCounter);
3071 RT_TRACE(COMP_RESET,
3072 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3073 RegTxCounter, priv->TxCounter);
3074 if (priv->TxCounter == RegTxCounter)
3075 bStuck = true;
3076
3077 priv->TxCounter = RegTxCounter;
3078
3079 return bStuck;
3080 }
3081
3082 /*
3083 * <Assumption: RT_TX_SPINLOCK is acquired.>
3084 * First added: 2006.11.19 by emily
3085 */
TxCheckStuck(struct net_device * dev)3086 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3087 {
3088 struct r8192_priv *priv = ieee80211_priv(dev);
3089 u8 QueueID;
3090 bool bCheckFwTxCnt = false;
3091
3092 /* Decide such threshold according to current power save mode */
3093
3094 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3095 if (QueueID == TXCMD_QUEUE)
3096 continue;
3097 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3098 continue;
3099
3100 bCheckFwTxCnt = true;
3101 }
3102 if (bCheckFwTxCnt) {
3103 if (HalTxCheckStuck819xUsb(dev)) {
3104 RT_TRACE(COMP_RESET,
3105 "%s: Fw indicates no Tx condition!\n",
3106 __func__);
3107 return RESET_TYPE_SILENT;
3108 }
3109 }
3110 return RESET_TYPE_NORESET;
3111 }
3112
HalRxCheckStuck819xUsb(struct net_device * dev)3113 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3114 {
3115 u16 RegRxCounter;
3116 struct r8192_priv *priv = ieee80211_priv(dev);
3117 bool bStuck = false;
3118 static u8 rx_chk_cnt;
3119
3120 read_nic_word(dev, 0x130, &RegRxCounter);
3121 RT_TRACE(COMP_RESET,
3122 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3123 RegRxCounter, priv->RxCounter);
3124 /* If rssi is small, we should check rx for long time because of bad rx.
3125 * or maybe it will continuous silent reset every 2 seconds.
3126 */
3127 rx_chk_cnt++;
3128 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3129 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3130 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3131 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3132 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3133 if (rx_chk_cnt < 2)
3134 return bStuck;
3135
3136 rx_chk_cnt = 0;
3137 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3138 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3139 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3140 if (rx_chk_cnt < 4)
3141 return bStuck;
3142
3143 rx_chk_cnt = 0;
3144 } else {
3145 if (rx_chk_cnt < 8)
3146 return bStuck;
3147
3148 rx_chk_cnt = 0;
3149 }
3150
3151 if (priv->RxCounter == RegRxCounter)
3152 bStuck = true;
3153
3154 priv->RxCounter = RegRxCounter;
3155
3156 return bStuck;
3157 }
3158
RxCheckStuck(struct net_device * dev)3159 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3160 {
3161 struct r8192_priv *priv = ieee80211_priv(dev);
3162 bool bRxCheck = false;
3163
3164 if (priv->IrpPendingCount > 1)
3165 bRxCheck = true;
3166
3167 if (bRxCheck) {
3168 if (HalRxCheckStuck819xUsb(dev)) {
3169 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3170 return RESET_TYPE_SILENT;
3171 }
3172 }
3173 return RESET_TYPE_NORESET;
3174 }
3175
3176
3177 /**
3178 * This function is called by Checkforhang to check whether we should
3179 * ask OS to reset driver
3180 *
3181 * \param pAdapter The adapter context for this miniport
3182 *
3183 * Note:NIC with USB interface sholud not call this function because we
3184 * cannot scan descriptor to judge whether there is tx stuck.
3185 * Note: This function may be required to be rewrite for Vista OS.
3186 * <<<Assumption: Tx spinlock has been acquired >>>
3187 *
3188 * 8185 and 8185b does not implement this function.
3189 */
rtl819x_ifcheck_resetornot(struct net_device * dev)3190 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3191 {
3192 struct r8192_priv *priv = ieee80211_priv(dev);
3193 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3194 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3195 RT_RF_POWER_STATE rfState;
3196
3197 rfState = priv->ieee80211->eRFPowerState;
3198
3199 TxResetType = TxCheckStuck(dev);
3200 if (rfState != eRfOff ||
3201 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3202 /* If driver is in the status of firmware download failure,
3203 * driver skips RF initialization and RF is in turned off
3204 * state. Driver should check whether Rx stuck and do silent
3205 * reset. And if driver is in firmware download failure status,
3206 * driver should initialize RF in the following silent reset
3207 * procedure
3208 *
3209 * Driver should not check RX stuck in IBSS mode because it is
3210 * required to set Check BSSID in order to send beacon,
3211 * however, if check BSSID is set, STA cannot hear any packet
3212 * at all.
3213 */
3214 RxResetType = RxCheckStuck(dev);
3215 }
3216 if (TxResetType == RESET_TYPE_NORMAL ||
3217 RxResetType == RESET_TYPE_NORMAL) {
3218 return RESET_TYPE_NORMAL;
3219 } else if (TxResetType == RESET_TYPE_SILENT ||
3220 RxResetType == RESET_TYPE_SILENT) {
3221 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3222 return RESET_TYPE_SILENT;
3223 } else {
3224 return RESET_TYPE_NORESET;
3225 }
3226 }
3227
3228 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3229 static int _rtl8192_up(struct net_device *dev);
3230 static int rtl8192_close(struct net_device *dev);
3231
3232
3233
CamRestoreAllEntry(struct net_device * dev)3234 static void CamRestoreAllEntry(struct net_device *dev)
3235 {
3236 u8 EntryId = 0;
3237 struct r8192_priv *priv = ieee80211_priv(dev);
3238 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3239
3240 static u8 CAM_CONST_ADDR[4][6] = {
3241 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3242 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3243 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3244 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3245 static u8 CAM_CONST_BROAD[] = {
3246 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3247
3248 RT_TRACE(COMP_SEC, "%s:\n", __func__);
3249
3250
3251 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3252 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3253 for (EntryId = 0; EntryId < 4; EntryId++) {
3254 MacAddr = CAM_CONST_ADDR[EntryId];
3255 setKey(dev, EntryId, EntryId,
3256 priv->ieee80211->pairwise_key_type,
3257 MacAddr, 0, NULL);
3258 }
3259
3260 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
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 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3269 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3270 (u8 *)dev->dev_addr, 0, NULL);
3271 else
3272 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3273 MacAddr, 0, NULL);
3274 }
3275
3276
3277
3278 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3279 MacAddr = CAM_CONST_BROAD;
3280 for (EntryId = 1; EntryId < 4; EntryId++) {
3281 setKey(dev, EntryId, EntryId,
3282 priv->ieee80211->group_key_type,
3283 MacAddr, 0, NULL);
3284 }
3285 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3286 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3287 CAM_CONST_ADDR[0], 0, NULL);
3288 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3289 MacAddr = CAM_CONST_BROAD;
3290 for (EntryId = 1; EntryId < 4; EntryId++) {
3291 setKey(dev, EntryId, EntryId,
3292 priv->ieee80211->group_key_type,
3293 MacAddr, 0, NULL);
3294 }
3295
3296 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3297 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3298 CAM_CONST_ADDR[0], 0, NULL);
3299 }
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 mutex_lock(&priv->wx_mutex);
3326 if (priv->up == 0) {
3327 RT_TRACE(COMP_ERR,
3328 "%s():the driver is not up! return\n",
3329 __func__);
3330 mutex_unlock(&priv->wx_mutex);
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 mutex_lock(&ieee->wx_mutex);
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 mutex_unlock(&ieee->wx_mutex);
3353 } else {
3354 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3355 ieee80211_softmac_stop_protocol(priv->ieee80211);
3356 }
3357 mutex_unlock(&priv->wx_mutex);
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 u8 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 = to_delayed_work(work);
3442 struct r8192_priv *priv = container_of(dwork,
3443 struct r8192_priv, watch_dog_wq);
3444 struct net_device *dev = priv->ieee80211->dev;
3445 struct ieee80211_device *ieee = priv->ieee80211;
3446 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3447 static u8 check_reset_cnt;
3448 bool bBusyTraffic = false;
3449 u32 TotalRxBcnNum = 0;
3450 u32 TotalRxDataNum = 0;
3451
3452 if (!priv->up)
3453 return;
3454 hal_dm_watchdog(dev);
3455
3456 /* to get busy traffic condition */
3457 if (ieee->state == IEEE80211_LINKED) {
3458 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3459 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3460 bBusyTraffic = true;
3461 }
3462 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3463 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3464 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3465 }
3466 /* for AP roaming */
3467 if (priv->ieee80211->state == IEEE80211_LINKED &&
3468 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3469 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3470 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3471 #ifdef TODO
3472 if (rfState == eRfOff)
3473 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3474 #endif
3475 netdev_dbg(dev,
3476 "===>%s(): AP is power off, connect another one\n",
3477 __func__);
3478 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3479 notify_wx_assoc_event(priv->ieee80211);
3480 RemovePeerTS(priv->ieee80211,
3481 priv->ieee80211->current_network.bssid);
3482 priv->ieee80211->link_change(dev);
3483 queue_work(priv->ieee80211->wq,
3484 &priv->ieee80211->associate_procedure_wq);
3485 }
3486 }
3487 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3488 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3489 /* check if reset the driver */
3490 if (check_reset_cnt++ >= 3) {
3491 ResetType = rtl819x_ifcheck_resetornot(dev);
3492 check_reset_cnt = 3;
3493 }
3494 /* This is control by OID set in Pomelo */
3495 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3496 (priv->bForcedSilentReset ||
3497 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3498 RT_TRACE(COMP_RESET,
3499 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3500 __func__, priv->force_reset, priv->ResetProgress,
3501 priv->bForcedSilentReset,
3502 priv->bDisableNormalResetCheck, ResetType);
3503 rtl819x_ifsilentreset(dev);
3504 }
3505 priv->force_reset = false;
3506 priv->bForcedSilentReset = false;
3507 priv->bResetInProgress = false;
3508 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3509 }
3510
watch_dog_timer_callback(unsigned long data)3511 static void watch_dog_timer_callback(unsigned long data)
3512 {
3513 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3514
3515 schedule_delayed_work(&priv->watch_dog_wq, 0);
3516 mod_timer(&priv->watch_dog_timer,
3517 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3518 }
3519
_rtl8192_up(struct net_device * dev)3520 static int _rtl8192_up(struct net_device *dev)
3521 {
3522 struct r8192_priv *priv = ieee80211_priv(dev);
3523 int init_status = 0;
3524
3525 priv->up = 1;
3526 priv->ieee80211->ieee_up = 1;
3527 RT_TRACE(COMP_INIT, "Bringing up iface");
3528 init_status = rtl8192_adapter_start(dev);
3529 if (!init_status) {
3530 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3531 __func__);
3532 priv->up = priv->ieee80211->ieee_up = 0;
3533 return -EAGAIN;
3534 }
3535 RT_TRACE(COMP_INIT, "start adapter finished\n");
3536 rtl8192_rx_enable(dev);
3537 if (priv->ieee80211->state != IEEE80211_LINKED)
3538 ieee80211_softmac_start_protocol(priv->ieee80211);
3539 ieee80211_reset_queue(priv->ieee80211);
3540 watch_dog_timer_callback((unsigned long)dev);
3541 if (!netif_queue_stopped(dev))
3542 netif_start_queue(dev);
3543 else
3544 netif_wake_queue(dev);
3545
3546 return 0;
3547 }
3548
3549
rtl8192_open(struct net_device * dev)3550 static int rtl8192_open(struct net_device *dev)
3551 {
3552 struct r8192_priv *priv = ieee80211_priv(dev);
3553 int ret;
3554
3555 mutex_lock(&priv->wx_mutex);
3556 ret = rtl8192_up(dev);
3557 mutex_unlock(&priv->wx_mutex);
3558 return ret;
3559 }
3560
3561
rtl8192_up(struct net_device * dev)3562 int rtl8192_up(struct net_device *dev)
3563 {
3564 struct r8192_priv *priv = ieee80211_priv(dev);
3565
3566 if (priv->up == 1)
3567 return -1;
3568
3569 return _rtl8192_up(dev);
3570 }
3571
3572
rtl8192_close(struct net_device * dev)3573 static int rtl8192_close(struct net_device *dev)
3574 {
3575 struct r8192_priv *priv = ieee80211_priv(dev);
3576 int ret;
3577
3578 mutex_lock(&priv->wx_mutex);
3579
3580 ret = rtl8192_down(dev);
3581
3582 mutex_unlock(&priv->wx_mutex);
3583
3584 return ret;
3585 }
3586
rtl8192_down(struct net_device * dev)3587 int rtl8192_down(struct net_device *dev)
3588 {
3589 struct r8192_priv *priv = ieee80211_priv(dev);
3590 int i;
3591
3592 if (priv->up == 0)
3593 return -1;
3594
3595 priv->up = 0;
3596 priv->ieee80211->ieee_up = 0;
3597 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3598 /* FIXME */
3599 if (!netif_queue_stopped(dev))
3600 netif_stop_queue(dev);
3601
3602 rtl8192_rtx_disable(dev);
3603
3604 /* Tx related queue release */
3605 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3606 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3607 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3608 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3609
3610 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3611 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3612
3613 /* as cancel_delayed_work will del work->timer, so if work is not
3614 * defined as struct delayed_work, it will corrupt
3615 */
3616 rtl8192_cancel_deferred_work(priv);
3617 deinit_hal_dm(dev);
3618 del_timer_sync(&priv->watch_dog_timer);
3619
3620
3621 ieee80211_softmac_stop_protocol(priv->ieee80211);
3622 memset(&priv->ieee80211->current_network, 0,
3623 offsetof(struct ieee80211_network, list));
3624 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3625
3626 return 0;
3627 }
3628
3629
rtl8192_commit(struct net_device * dev)3630 void rtl8192_commit(struct net_device *dev)
3631 {
3632 struct r8192_priv *priv = ieee80211_priv(dev);
3633 int reset_status = 0;
3634
3635 if (priv->up == 0)
3636 return;
3637 priv->up = 0;
3638
3639 rtl8192_cancel_deferred_work(priv);
3640 del_timer_sync(&priv->watch_dog_timer);
3641
3642 ieee80211_softmac_stop_protocol(priv->ieee80211);
3643
3644 rtl8192_rtx_disable(dev);
3645 reset_status = _rtl8192_up(dev);
3646 }
3647
rtl8192_restart(struct work_struct * work)3648 static void rtl8192_restart(struct work_struct *work)
3649 {
3650 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3651 reset_wq);
3652 struct net_device *dev = priv->ieee80211->dev;
3653
3654 mutex_lock(&priv->wx_mutex);
3655
3656 rtl8192_commit(dev);
3657
3658 mutex_unlock(&priv->wx_mutex);
3659 }
3660
r8192_set_multicast(struct net_device * dev)3661 static void r8192_set_multicast(struct net_device *dev)
3662 {
3663 struct r8192_priv *priv = ieee80211_priv(dev);
3664 short promisc;
3665
3666 /* FIXME FIXME */
3667
3668 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3669
3670 if (promisc != priv->promisc)
3671
3672 priv->promisc = promisc;
3673 }
3674
3675
r8192_set_mac_adr(struct net_device * dev,void * mac)3676 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3677 {
3678 struct r8192_priv *priv = ieee80211_priv(dev);
3679 struct sockaddr *addr = mac;
3680
3681 mutex_lock(&priv->wx_mutex);
3682
3683 ether_addr_copy(dev->dev_addr, addr->sa_data);
3684
3685 schedule_work(&priv->reset_wq);
3686 mutex_unlock(&priv->wx_mutex);
3687
3688 return 0;
3689 }
3690
3691 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3692 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3693 {
3694 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3695 struct iwreq *wrq = (struct iwreq *)rq;
3696 int ret = -1;
3697 struct ieee80211_device *ieee = priv->ieee80211;
3698 u32 key[4];
3699 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3700 struct iw_point *p = &wrq->u.data;
3701 struct ieee_param *ipw = NULL;
3702
3703 mutex_lock(&priv->wx_mutex);
3704
3705
3706 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3707 ret = -EINVAL;
3708 goto out;
3709 }
3710
3711 ipw = memdup_user(p->pointer, p->length);
3712 if (IS_ERR(ipw)) {
3713 ret = PTR_ERR(ipw);
3714 goto out;
3715 }
3716
3717 switch (cmd) {
3718 case RTL_IOCTL_WPA_SUPPLICANT:
3719 /* parse here for HW security */
3720 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3721 if (ipw->u.crypt.set_tx) {
3722 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3723 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3724 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3725 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3726 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3727 if (ipw->u.crypt.key_len == 13)
3728 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3729 else if (ipw->u.crypt.key_len == 5)
3730 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3731 } else {
3732 ieee->pairwise_key_type = KEY_TYPE_NA;
3733 }
3734
3735 if (ieee->pairwise_key_type) {
3736 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3737 EnableHWSecurityConfig8192(dev);
3738 /* We fill both index entry and 4th
3739 * entry for pairwise key as in IPW
3740 * interface, adhoc will only get here,
3741 * so we need index entry for its
3742 * default key serching!
3743 */
3744 setKey(dev, 4, ipw->u.crypt.idx,
3745 ieee->pairwise_key_type,
3746 (u8 *)ieee->ap_mac_addr,
3747 0, key);
3748 if (ieee->auth_mode != 2)
3749 setKey(dev, ipw->u.crypt.idx,
3750 ipw->u.crypt.idx,
3751 ieee->pairwise_key_type,
3752 (u8 *)ieee->ap_mac_addr,
3753 0, key);
3754 }
3755 } else {
3756 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3757 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3758 ieee->group_key_type = KEY_TYPE_CCMP;
3759 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3760 ieee->group_key_type = KEY_TYPE_TKIP;
3761 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3762 if (ipw->u.crypt.key_len == 13)
3763 ieee->group_key_type = KEY_TYPE_WEP104;
3764 else if (ipw->u.crypt.key_len == 5)
3765 ieee->group_key_type = KEY_TYPE_WEP40;
3766 } else {
3767 ieee->group_key_type = KEY_TYPE_NA;
3768 }
3769
3770 if (ieee->group_key_type) {
3771 setKey(dev, ipw->u.crypt.idx,
3772 /* KeyIndex */
3773 ipw->u.crypt.idx,
3774 /* KeyType */
3775 ieee->group_key_type,
3776 /* MacAddr */
3777 broadcast_addr,
3778 /* DefaultKey */
3779 0,
3780 /* KeyContent */
3781 key);
3782 }
3783 }
3784 }
3785 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3786 &wrq->u.data);
3787 break;
3788
3789 default:
3790 ret = -EOPNOTSUPP;
3791 break;
3792 }
3793 kfree(ipw);
3794 ipw = NULL;
3795 out:
3796 mutex_unlock(&priv->wx_mutex);
3797 return ret;
3798 }
3799
HwRateToMRate90(bool bIsHT,u8 rate)3800 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3801 {
3802 u8 ret_rate = 0xff;
3803
3804 if (!bIsHT) {
3805 switch (rate) {
3806 case DESC90_RATE1M:
3807 ret_rate = MGN_1M;
3808 break;
3809 case DESC90_RATE2M:
3810 ret_rate = MGN_2M;
3811 break;
3812 case DESC90_RATE5_5M:
3813 ret_rate = MGN_5_5M;
3814 break;
3815 case DESC90_RATE11M:
3816 ret_rate = MGN_11M;
3817 break;
3818 case DESC90_RATE6M:
3819 ret_rate = MGN_6M;
3820 break;
3821 case DESC90_RATE9M:
3822 ret_rate = MGN_9M;
3823 break;
3824 case DESC90_RATE12M:
3825 ret_rate = MGN_12M;
3826 break;
3827 case DESC90_RATE18M:
3828 ret_rate = MGN_18M;
3829 break;
3830 case DESC90_RATE24M:
3831 ret_rate = MGN_24M;
3832 break;
3833 case DESC90_RATE36M:
3834 ret_rate = MGN_36M;
3835 break;
3836 case DESC90_RATE48M:
3837 ret_rate = MGN_48M;
3838 break;
3839 case DESC90_RATE54M:
3840 ret_rate = MGN_54M;
3841 break;
3842
3843 default:
3844 ret_rate = 0xff;
3845 RT_TRACE(COMP_RECV,
3846 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3847 __func__, rate, bIsHT);
3848 break;
3849 }
3850
3851 } else {
3852 switch (rate) {
3853 case DESC90_RATEMCS0:
3854 ret_rate = MGN_MCS0;
3855 break;
3856 case DESC90_RATEMCS1:
3857 ret_rate = MGN_MCS1;
3858 break;
3859 case DESC90_RATEMCS2:
3860 ret_rate = MGN_MCS2;
3861 break;
3862 case DESC90_RATEMCS3:
3863 ret_rate = MGN_MCS3;
3864 break;
3865 case DESC90_RATEMCS4:
3866 ret_rate = MGN_MCS4;
3867 break;
3868 case DESC90_RATEMCS5:
3869 ret_rate = MGN_MCS5;
3870 break;
3871 case DESC90_RATEMCS6:
3872 ret_rate = MGN_MCS6;
3873 break;
3874 case DESC90_RATEMCS7:
3875 ret_rate = MGN_MCS7;
3876 break;
3877 case DESC90_RATEMCS8:
3878 ret_rate = MGN_MCS8;
3879 break;
3880 case DESC90_RATEMCS9:
3881 ret_rate = MGN_MCS9;
3882 break;
3883 case DESC90_RATEMCS10:
3884 ret_rate = MGN_MCS10;
3885 break;
3886 case DESC90_RATEMCS11:
3887 ret_rate = MGN_MCS11;
3888 break;
3889 case DESC90_RATEMCS12:
3890 ret_rate = MGN_MCS12;
3891 break;
3892 case DESC90_RATEMCS13:
3893 ret_rate = MGN_MCS13;
3894 break;
3895 case DESC90_RATEMCS14:
3896 ret_rate = MGN_MCS14;
3897 break;
3898 case DESC90_RATEMCS15:
3899 ret_rate = MGN_MCS15;
3900 break;
3901 case DESC90_RATEMCS32:
3902 ret_rate = 0x80 | 0x20;
3903 break;
3904
3905 default:
3906 ret_rate = 0xff;
3907 RT_TRACE(COMP_RECV,
3908 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3909 __func__, rate, bIsHT);
3910 break;
3911 }
3912 }
3913
3914 return ret_rate;
3915 }
3916
3917 /**
3918 * Function: UpdateRxPktTimeStamp
3919 * Overview: Record the TSF time stamp when receiving a packet
3920 *
3921 * Input:
3922 * PADAPTER Adapter
3923 * PRT_RFD pRfd,
3924 *
3925 * Output:
3926 * PRT_RFD pRfd
3927 * (pRfd->Status.TimeStampHigh is updated)
3928 * (pRfd->Status.TimeStampLow is updated)
3929 * Return:
3930 * None
3931 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3932 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3933 struct ieee80211_rx_stats *stats)
3934 {
3935 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3936
3937 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3938 stats->mac_time[0] = priv->LastRxDescTSFLow;
3939 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3940 } else {
3941 priv->LastRxDescTSFLow = stats->mac_time[0];
3942 priv->LastRxDescTSFHigh = stats->mac_time[1];
3943 }
3944 }
3945
3946 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3947 static long rtl819x_translate_todbm(u8 signal_strength_index)
3948 {
3949 long signal_power; /* in dBm. */
3950
3951 /* Translate to dBm (x=0.5y-95). */
3952 signal_power = (long)((signal_strength_index + 1) >> 1);
3953 signal_power -= 95;
3954
3955 return signal_power;
3956 }
3957
3958
3959 /* We can not declare RSSI/EVM total value of sliding window to
3960 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3961 * value will be kept in memory or disk. Declare the value in the adaptor
3962 * and it will be reinitialized when returned from S3/S4.
3963 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3964 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3965 struct ieee80211_rx_stats *pprevious_stats,
3966 struct ieee80211_rx_stats *pcurrent_stats)
3967 {
3968 bool bcheck = false;
3969 u8 rfpath;
3970 u32 nspatial_stream, tmp_val;
3971 static u32 slide_rssi_index, slide_rssi_statistics;
3972 static u32 slide_evm_index, slide_evm_statistics;
3973 static u32 last_rssi, last_evm;
3974
3975 static u32 slide_beacon_adc_pwdb_index;
3976 static u32 slide_beacon_adc_pwdb_statistics;
3977 static u32 last_beacon_adc_pwdb;
3978
3979 struct rtl_80211_hdr_3addr *hdr;
3980 u16 sc;
3981 unsigned int frag, seq;
3982
3983 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3984 sc = le16_to_cpu(hdr->seq_ctl);
3985 frag = WLAN_GET_SEQ_FRAG(sc);
3986 seq = WLAN_GET_SEQ_SEQ(sc);
3987 /* to record the sequence number */
3988 pcurrent_stats->Seq_Num = seq;
3989
3990 /* Check whether we should take the previous packet into accounting */
3991 if (!pprevious_stats->bIsAMPDU) {
3992 /* if previous packet is not aggregated packet */
3993 bcheck = true;
3994 }
3995
3996 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3997 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3998 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3999 priv->stats.slide_rssi_total -= last_rssi;
4000 }
4001 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
4002
4003 priv->stats.slide_signal_strength[slide_rssi_index++] =
4004 pprevious_stats->SignalStrength;
4005 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
4006 slide_rssi_index = 0;
4007
4008 /* <1> Showed on UI for user, in dbm */
4009 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
4010 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
4011 pcurrent_stats->rssi = priv->stats.signal_strength;
4012
4013 /* If the previous packet does not match the criteria, neglect it */
4014 if (!pprevious_stats->bPacketMatchBSSID) {
4015 if (!pprevious_stats->bToSelfBA)
4016 return;
4017 }
4018
4019 if (!bcheck)
4020 return;
4021
4022
4023 /* only rtl8190 supported
4024 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
4025 */
4026
4027 /* Check RSSI */
4028 priv->stats.num_process_phyinfo++;
4029
4030 /* record the general signal strength to the sliding window. */
4031
4032
4033 /* <2> Showed on UI for engineering
4034 * hardware does not provide rssi information for each rf path in CCK
4035 */
4036 if (!pprevious_stats->bIsCCK &&
4037 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
4038 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
4039 if (!rtl8192_phy_CheckIsLegalRFPath(
4040 priv->ieee80211->dev, rfpath))
4041 continue;
4042
4043 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
4044 priv->stats.rx_rssi_percentage[rfpath] =
4045 pprevious_stats->RxMIMOSignalStrength[rfpath];
4046 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
4047 priv->stats.rx_rssi_percentage[rfpath] =
4048 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4049 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4050 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4051 } else {
4052 priv->stats.rx_rssi_percentage[rfpath] =
4053 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4054 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4055 }
4056 RT_TRACE(COMP_DBG,
4057 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4058 priv->stats.rx_rssi_percentage[rfpath]);
4059 }
4060 }
4061
4062
4063 /* Check PWDB. */
4064 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4065 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4066 pprevious_stats->RxPWDBAll);
4067
4068 if (pprevious_stats->bPacketBeacon) {
4069 /* record the beacon pwdb to the sliding window. */
4070 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4071 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4072 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4073 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4074 }
4075 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4076 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4077 slide_beacon_adc_pwdb_index++;
4078 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4079 slide_beacon_adc_pwdb_index = 0;
4080 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4081 if (pprevious_stats->RxPWDBAll >= 3)
4082 pprevious_stats->RxPWDBAll -= 3;
4083 }
4084
4085 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4086 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4087 pprevious_stats->RxPWDBAll);
4088
4089
4090 if (pprevious_stats->bPacketToSelf ||
4091 pprevious_stats->bPacketBeacon ||
4092 pprevious_stats->bToSelfBA) {
4093 if (priv->undecorated_smoothed_pwdb < 0)
4094 /* initialize */
4095 priv->undecorated_smoothed_pwdb =
4096 pprevious_stats->RxPWDBAll;
4097 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4098 priv->undecorated_smoothed_pwdb =
4099 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4100 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4101 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4102 } else {
4103 priv->undecorated_smoothed_pwdb =
4104 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4105 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4106 }
4107 }
4108
4109 /* Check EVM */
4110 /* record the general EVM to the sliding window. */
4111 if (pprevious_stats->SignalQuality) {
4112 if (pprevious_stats->bPacketToSelf ||
4113 pprevious_stats->bPacketBeacon ||
4114 pprevious_stats->bToSelfBA) {
4115 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4116 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4117 last_evm = priv->stats.slide_evm[slide_evm_index];
4118 priv->stats.slide_evm_total -= last_evm;
4119 }
4120
4121 priv->stats.slide_evm_total +=
4122 pprevious_stats->SignalQuality;
4123
4124 priv->stats.slide_evm[slide_evm_index++] =
4125 pprevious_stats->SignalQuality;
4126 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4127 slide_evm_index = 0;
4128
4129 /* <1> Showed on UI for user, in percentage. */
4130 tmp_val = priv->stats.slide_evm_total /
4131 slide_evm_statistics;
4132 priv->stats.signal_quality = tmp_val;
4133 /* Showed on UI for user in Windows Vista,
4134 * for Link quality.
4135 */
4136 priv->stats.last_signal_strength_inpercent = tmp_val;
4137 }
4138
4139 /* <2> Showed on UI for engineering */
4140 if (pprevious_stats->bPacketToSelf ||
4141 pprevious_stats->bPacketBeacon ||
4142 pprevious_stats->bToSelfBA) {
4143 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4144 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4145 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4146 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4147 priv->stats.rx_evm_percentage[nspatial_stream] =
4148 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4149 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4150 }
4151 }
4152 }
4153 }
4154 }
4155
4156 /*-----------------------------------------------------------------------------
4157 * Function: rtl819x_query_rxpwrpercentage()
4158 *
4159 * Overview:
4160 *
4161 * Input: char antpower
4162 *
4163 * Output: NONE
4164 *
4165 * Return: 0-100 percentage
4166 *---------------------------------------------------------------------------
4167 */
rtl819x_query_rxpwrpercentage(s8 antpower)4168 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
4169 {
4170 if ((antpower <= -100) || (antpower >= 20))
4171 return 0;
4172 else if (antpower >= 0)
4173 return 100;
4174 else
4175 return 100 + antpower;
4176
4177 } /* QueryRxPwrPercentage */
4178
rtl819x_evm_dbtopercentage(s8 value)4179 static u8 rtl819x_evm_dbtopercentage(s8 value)
4180 {
4181 s8 ret_val;
4182
4183 ret_val = value;
4184
4185 if (ret_val >= 0)
4186 ret_val = 0;
4187 if (ret_val <= -33)
4188 ret_val = -33;
4189 ret_val = 0 - ret_val;
4190 ret_val *= 3;
4191 if (ret_val == 99)
4192 ret_val = 100;
4193 return ret_val;
4194 }
4195
4196 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)4197 static long rtl819x_signal_scale_mapping(long currsig)
4198 {
4199 long retsig;
4200
4201 /* Step 1. Scale mapping. */
4202 if (currsig >= 61 && currsig <= 100)
4203 retsig = 90 + ((currsig - 60) / 4);
4204 else if (currsig >= 41 && currsig <= 60)
4205 retsig = 78 + ((currsig - 40) / 2);
4206 else if (currsig >= 31 && currsig <= 40)
4207 retsig = 66 + (currsig - 30);
4208 else if (currsig >= 21 && currsig <= 30)
4209 retsig = 54 + (currsig - 20);
4210 else if (currsig >= 5 && currsig <= 20)
4211 retsig = 42 + (((currsig - 5) * 2) / 3);
4212 else if (currsig == 4)
4213 retsig = 36;
4214 else if (currsig == 3)
4215 retsig = 27;
4216 else if (currsig == 2)
4217 retsig = 18;
4218 else if (currsig == 1)
4219 retsig = 9;
4220 else
4221 retsig = currsig;
4222
4223 return retsig;
4224 }
4225
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)4226 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4227 {
4228 if (pdrvinfo->RxHT)
4229 return false;
4230
4231 switch (pdrvinfo->RxRate) {
4232 case DESC90_RATE1M:
4233 case DESC90_RATE2M:
4234 case DESC90_RATE5_5M:
4235 case DESC90_RATE11M:
4236 return true;
4237 default:
4238 return false;
4239 }
4240 }
4241
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)4242 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4243 struct ieee80211_rx_stats *pstats,
4244 rx_drvinfo_819x_usb *pdrvinfo,
4245 struct ieee80211_rx_stats *precord_stats,
4246 bool bpacket_match_bssid,
4247 bool bpacket_toself,
4248 bool bPacketBeacon,
4249 bool bToSelfBA)
4250 {
4251 phy_sts_ofdm_819xusb_t *pofdm_buf;
4252 phy_sts_cck_819xusb_t *pcck_buf;
4253 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4254 u8 *prxpkt;
4255 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4256 s8 rx_pwr[4], rx_pwr_all = 0;
4257 s8 rx_snrX, rx_evmX;
4258 u8 evm, pwdb_all;
4259 u32 RSSI, total_rssi = 0;
4260 u8 is_cck_rate = 0;
4261 u8 rf_rx_num = 0;
4262 u8 sq;
4263
4264
4265 priv->stats.numqry_phystatus++;
4266
4267 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4268
4269 /* Record it for next packet processing */
4270 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4271 pstats->bPacketMatchBSSID =
4272 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4273 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4274 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4275 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4276 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4277
4278 prxpkt = (u8 *)pdrvinfo;
4279
4280 /* Move pointer to the 16th bytes. Phy status start address. */
4281 prxpkt += sizeof(rx_drvinfo_819x_usb);
4282
4283 /* Initial the cck and ofdm buffer pointer */
4284 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4285 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4286
4287 pstats->RxMIMOSignalQuality[0] = -1;
4288 pstats->RxMIMOSignalQuality[1] = -1;
4289 precord_stats->RxMIMOSignalQuality[0] = -1;
4290 precord_stats->RxMIMOSignalQuality[1] = -1;
4291
4292 if (is_cck_rate) {
4293 /* (1)Hardware does not provide RSSI for CCK */
4294
4295 /* (2)PWDB, Average PWDB calculated by hardware
4296 * (for rate adaptive)
4297 */
4298 u8 report;
4299
4300 priv->stats.numqry_phystatusCCK++;
4301
4302 if (!priv->bCckHighPower) {
4303 report = pcck_buf->cck_agc_rpt & 0xc0;
4304 report >>= 6;
4305 switch (report) {
4306 case 0x3:
4307 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4308 break;
4309 case 0x2:
4310 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4311 break;
4312 case 0x1:
4313 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4314 break;
4315 case 0x0:
4316 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4317 break;
4318 }
4319 } else {
4320 report = pcck_buf->cck_agc_rpt & 0x60;
4321 report >>= 5;
4322 switch (report) {
4323 case 0x3:
4324 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4325 break;
4326 case 0x2:
4327 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4328 break;
4329 case 0x1:
4330 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4331 break;
4332 case 0x0:
4333 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4334 break;
4335 }
4336 }
4337
4338 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4339 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4340 pstats->RecvSignalPower = pwdb_all;
4341
4342 /* (3) Get Signal Quality (EVM) */
4343
4344 if (pstats->RxPWDBAll > 40) {
4345 sq = 100;
4346 } else {
4347 sq = pcck_buf->sq_rpt;
4348
4349 if (pcck_buf->sq_rpt > 64)
4350 sq = 0;
4351 else if (pcck_buf->sq_rpt < 20)
4352 sq = 100;
4353 else
4354 sq = ((64 - sq) * 100) / 44;
4355 }
4356 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4357 pstats->RxMIMOSignalQuality[0] =
4358 precord_stats->RxMIMOSignalQuality[0] = sq;
4359 pstats->RxMIMOSignalQuality[1] =
4360 precord_stats->RxMIMOSignalQuality[1] = -1;
4361
4362 } else {
4363 priv->stats.numqry_phystatusHT++;
4364
4365 /* (1)Get RSSI for HT rate */
4366 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4367 /* We will judge RF RX path now. */
4368 if (priv->brfpath_rxenable[i])
4369 rf_rx_num++;
4370 else
4371 continue;
4372
4373 if (!rtl8192_phy_CheckIsLegalRFPath(
4374 priv->ieee80211->dev, i))
4375 continue;
4376
4377 rx_pwr[i] =
4378 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4379
4380 /* Get Rx snr value in DB */
4381 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4382 rx_snrX = (s8)(tmp_rxsnr);
4383 rx_snrX /= 2;
4384 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4385
4386 /* Translate DBM to percentage. */
4387 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4388 total_rssi += RSSI;
4389
4390 /* Record Signal Strength for next packet */
4391 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4392 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4393 }
4394
4395
4396 /* (2)PWDB, Average PWDB calculated by hardware
4397 * (for rate adaptive)
4398 */
4399 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4400 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4401
4402 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4403 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4404
4405 /* (3)EVM of HT rate */
4406 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4407 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4408 /* both spatial stream make sense */
4409 max_spatial_stream = 2;
4410 else
4411 /* only spatial stream 1 makes sense */
4412 max_spatial_stream = 1;
4413
4414 for (i = 0; i < max_spatial_stream; i++) {
4415 tmp_rxevm = pofdm_buf->rxevm_X[i];
4416 rx_evmX = (s8)(tmp_rxevm);
4417
4418 /* Do not use shift operation like "rx_evmX >>= 1"
4419 * because the compiler of free build environment will
4420 * set the most significant bit to "zero" when doing
4421 * shifting operation which may change a negative value
4422 * to positive one, then the dbm value (which is
4423 * supposed to be negative) is not correct anymore.
4424 */
4425 rx_evmX /= 2; /* dbm */
4426
4427 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4428 if (i == 0)
4429 /* Fill value in RFD, Get the first spatial
4430 * stream only
4431 */
4432 pstats->SignalQuality =
4433 precord_stats->SignalQuality =
4434 evm & 0xff;
4435 pstats->RxMIMOSignalQuality[i] =
4436 precord_stats->RxMIMOSignalQuality[i] =
4437 evm & 0xff;
4438 }
4439
4440
4441 /* record rx statistics for debug */
4442 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4443 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4444 &rxsc_sgien_exflg;
4445 if (pdrvinfo->BW) /* 40M channel */
4446 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4447 else /* 20M channel */
4448 priv->stats.received_bwtype[0]++;
4449 }
4450
4451 /* UI BSS List signal strength(in percentage), make it good looking,
4452 * from 0~100. It is assigned to the BSS List in
4453 * GetValueFromBeaconOrProbeRsp().
4454 */
4455 if (is_cck_rate) {
4456 pstats->SignalStrength =
4457 precord_stats->SignalStrength =
4458 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4459 } else {
4460 /* We can judge RX path number now. */
4461 if (rf_rx_num != 0) {
4462 pstats->SignalStrength =
4463 precord_stats->SignalStrength =
4464 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4465 }
4466 }
4467 } /* QueryRxPhyStatus8190Pci */
4468
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4469 static void rtl8192_record_rxdesc_forlateruse(
4470 struct ieee80211_rx_stats *psrc_stats,
4471 struct ieee80211_rx_stats *ptarget_stats)
4472 {
4473 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4474 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4475 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4476 }
4477
4478
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,rx_drvinfo_819x_usb * pdrvinfo)4479 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4480 struct ieee80211_rx_stats *pstats,
4481 rx_drvinfo_819x_usb *pdrvinfo)
4482 {
4483 /* TODO: We must only check packet for current MAC address.
4484 * Not finish
4485 */
4486 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4487 struct net_device *dev = info->dev;
4488 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4489 bool bpacket_match_bssid, bpacket_toself;
4490 bool bPacketBeacon = false, bToSelfBA = false;
4491 static struct ieee80211_rx_stats previous_stats;
4492 struct rtl_80211_hdr_3addr *hdr;
4493 u16 fc, type;
4494
4495 /* Get Signal Quality for only RX data queue (but not command queue) */
4496
4497 u8 *tmp_buf;
4498 u8 *praddr;
4499
4500 /* Get MAC frame start address. */
4501 tmp_buf = (u8 *)skb->data;
4502
4503 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4504 fc = le16_to_cpu(hdr->frame_ctl);
4505 type = WLAN_FC_GET_TYPE(fc);
4506 praddr = hdr->addr1;
4507
4508 /* Check if the received packet is acceptable. */
4509 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
4510 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4511 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4512 bpacket_toself = bpacket_match_bssid &
4513 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4514
4515 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4516 bPacketBeacon = true;
4517 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4518 if ((eqMacAddr(praddr, dev->dev_addr)))
4519 bToSelfBA = true;
4520 }
4521
4522
4523
4524 if (bpacket_match_bssid)
4525 priv->stats.numpacket_matchbssid++;
4526 if (bpacket_toself)
4527 priv->stats.numpacket_toself++;
4528 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4529 * Because phy information is contained in the last packet of AMPDU
4530 * only, so driver should process phy information of previous packet
4531 */
4532 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4533 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4534 bpacket_match_bssid, bpacket_toself,
4535 bPacketBeacon, bToSelfBA);
4536 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4537 }
4538
4539 /**
4540 * Function: UpdateReceivedRateHistogramStatistics
4541 * Overview: Record the received data rate
4542 *
4543 * Input:
4544 * struct net_device *dev
4545 * struct ieee80211_rx_stats *stats
4546 *
4547 * Output:
4548 *
4549 * (priv->stats.ReceivedRateHistogram[] is updated)
4550 * Return:
4551 * None
4552 */
4553 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4554 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4555 struct ieee80211_rx_stats *stats)
4556 {
4557 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4558 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4559 u32 rcvType = 1;
4560 u32 rateIndex;
4561 /* 1: short preamble/GI, 0: long preamble/GI */
4562 u32 preamble_guardinterval;
4563
4564
4565 if (stats->bCRC)
4566 rcvType = 2;
4567 else if (stats->bICV)
4568 rcvType = 3;
4569
4570 if (stats->bShortPreamble)
4571 preamble_guardinterval = 1; /* short */
4572 else
4573 preamble_guardinterval = 0; /* long */
4574
4575 switch (stats->rate) {
4576 /* CCK rate */
4577 case MGN_1M:
4578 rateIndex = 0;
4579 break;
4580 case MGN_2M:
4581 rateIndex = 1;
4582 break;
4583 case MGN_5_5M:
4584 rateIndex = 2;
4585 break;
4586 case MGN_11M:
4587 rateIndex = 3;
4588 break;
4589 /* Legacy OFDM rate */
4590 case MGN_6M:
4591 rateIndex = 4;
4592 break;
4593 case MGN_9M:
4594 rateIndex = 5;
4595 break;
4596 case MGN_12M:
4597 rateIndex = 6;
4598 break;
4599 case MGN_18M:
4600 rateIndex = 7;
4601 break;
4602 case MGN_24M:
4603 rateIndex = 8;
4604 break;
4605 case MGN_36M:
4606 rateIndex = 9;
4607 break;
4608 case MGN_48M:
4609 rateIndex = 10;
4610 break;
4611 case MGN_54M:
4612 rateIndex = 11;
4613 break;
4614 /* 11n High throughput rate */
4615 case MGN_MCS0:
4616 rateIndex = 12;
4617 break;
4618 case MGN_MCS1:
4619 rateIndex = 13;
4620 break;
4621 case MGN_MCS2:
4622 rateIndex = 14;
4623 break;
4624 case MGN_MCS3:
4625 rateIndex = 15;
4626 break;
4627 case MGN_MCS4:
4628 rateIndex = 16;
4629 break;
4630 case MGN_MCS5:
4631 rateIndex = 17;
4632 break;
4633 case MGN_MCS6:
4634 rateIndex = 18;
4635 break;
4636 case MGN_MCS7:
4637 rateIndex = 19;
4638 break;
4639 case MGN_MCS8:
4640 rateIndex = 20;
4641 break;
4642 case MGN_MCS9:
4643 rateIndex = 21;
4644 break;
4645 case MGN_MCS10:
4646 rateIndex = 22;
4647 break;
4648 case MGN_MCS11:
4649 rateIndex = 23;
4650 break;
4651 case MGN_MCS12:
4652 rateIndex = 24;
4653 break;
4654 case MGN_MCS13:
4655 rateIndex = 25;
4656 break;
4657 case MGN_MCS14:
4658 rateIndex = 26;
4659 break;
4660 case MGN_MCS15:
4661 rateIndex = 27;
4662 break;
4663 default:
4664 rateIndex = 28;
4665 break;
4666 }
4667 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4668 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4669 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4670 }
4671
4672
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4673 static void query_rxdesc_status(struct sk_buff *skb,
4674 struct ieee80211_rx_stats *stats,
4675 bool bIsRxAggrSubframe)
4676 {
4677 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4678 struct net_device *dev = info->dev;
4679 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4680 rx_drvinfo_819x_usb *driver_info = NULL;
4681
4682 /* Get Rx Descriptor Information */
4683 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4684
4685 stats->Length = desc->Length;
4686 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4687 stats->RxBufShift = 0;
4688 stats->bICV = desc->ICV;
4689 stats->bCRC = desc->CRC32;
4690 stats->bHwError = stats->bCRC | stats->bICV;
4691 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4692 stats->Decrypted = !desc->SWDec;
4693
4694 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4695 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4696 stats->bHwError = false;
4697 else
4698 stats->bHwError = stats->bCRC | stats->bICV;
4699
4700 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4701 stats->bHwError |= 1;
4702 /* Get Driver Info */
4703 /* TODO: Need to verify it on FGPA platform
4704 * Driver info are written to the RxBuffer following rx desc
4705 */
4706 if (stats->RxDrvInfoSize != 0) {
4707 driver_info = (rx_drvinfo_819x_usb *)(
4708 skb->data
4709 + sizeof(rx_desc_819x_usb)
4710 + stats->RxBufShift
4711 );
4712 /* unit: 0.5M */
4713 /* TODO */
4714 if (!stats->bHwError) {
4715 u8 ret_rate;
4716
4717 ret_rate = HwRateToMRate90(driver_info->RxHT,
4718 driver_info->RxRate);
4719 if (ret_rate == 0xff) {
4720 /* Abnormal Case: Receive CRC OK packet with Rx
4721 * descriptor indicating non supported rate.
4722 * Special Error Handling here
4723 */
4724
4725 stats->bHwError = 1;
4726 /* Set 1M rate by default */
4727 stats->rate = MGN_1M;
4728 } else {
4729 stats->rate = ret_rate;
4730 }
4731 } else {
4732 stats->rate = 0x02;
4733 }
4734
4735 stats->bShortPreamble = driver_info->SPLCP;
4736
4737
4738 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4739
4740 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4741 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4742 (driver_info->FirstAGGR == 1);
4743 stats->TimeStampLow = driver_info->TSFL;
4744
4745 UpdateRxPktTimeStamp8190(dev, stats);
4746
4747 /* Rx A-MPDU */
4748 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4749 RT_TRACE(COMP_RXDESC,
4750 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4751 driver_info->FirstAGGR, driver_info->PartAggr);
4752 }
4753
4754 skb_pull(skb, sizeof(rx_desc_819x_usb));
4755 /* Get Total offset of MPDU Frame Body */
4756 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4757 stats->bShift = 1;
4758 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4759 }
4760
4761 if (driver_info) {
4762 stats->RxIs40MHzPacket = driver_info->BW;
4763 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4764 }
4765 }
4766
rtl8192_rx_nomal(struct sk_buff * skb)4767 static void rtl8192_rx_nomal(struct sk_buff *skb)
4768 {
4769 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4770 struct net_device *dev = info->dev;
4771 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4772 struct ieee80211_rx_stats stats = {
4773 .signal = 0,
4774 .noise = 0x100 - 98,
4775 .rate = 0,
4776 .freq = IEEE80211_24GHZ_BAND,
4777 };
4778 u32 rx_pkt_len = 0;
4779 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4780 bool unicast_packet = false;
4781
4782 /* 20 is for ps-poll */
4783 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4784 /* first packet should not contain Rx aggregation header */
4785 query_rxdesc_status(skb, &stats, false);
4786 /* TODO */
4787 /* hardware related info */
4788 /* Process the MPDU received */
4789 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4790
4791 rx_pkt_len = skb->len;
4792 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4793 unicast_packet = false;
4794 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4795 /* TODO */
4796 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4797 /* TODO */
4798 } else {
4799 /* unicast packet */
4800 unicast_packet = true;
4801 }
4802
4803 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4804 dev_kfree_skb_any(skb);
4805 } else {
4806 priv->stats.rxoktotal++;
4807 if (unicast_packet)
4808 priv->stats.rxbytesunicast += rx_pkt_len;
4809 }
4810 } else {
4811 priv->stats.rxurberr++;
4812 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4813 dev_kfree_skb_any(skb);
4814 }
4815 }
4816
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4817 static void rtl819xusb_process_received_packet(
4818 struct net_device *dev,
4819 struct ieee80211_rx_stats *pstats)
4820 {
4821 u8 *frame;
4822 u16 frame_len = 0;
4823 struct r8192_priv *priv = ieee80211_priv(dev);
4824
4825 /* Get shifted bytes of Starting address of 802.11 header. */
4826 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4827 frame = pstats->virtual_address;
4828 frame_len = pstats->packetlength;
4829 #ifdef TODO /* about HCT */
4830 if (!Adapter->bInHctTest)
4831 CountRxErrStatistics(Adapter, pRfd);
4832 #endif
4833 #ifdef ENABLE_PS /* for adding ps function in future */
4834 RT_RF_POWER_STATE rtState;
4835 /* When RF is off, we should not count the packet for hw/sw synchronize
4836 * reason, ie. there may be a duration while sw switch is changed and
4837 * hw switch is being changed.
4838 */
4839 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4840 (u8 *)(&rtState));
4841 if (rtState == eRfOff)
4842 return;
4843 #endif
4844 priv->stats.rxframgment++;
4845
4846 #ifdef TODO
4847 RmMonitorSignalStrength(Adapter, pRfd);
4848 #endif
4849 /* We have to release RFD and return if rx pkt is cmd pkt. */
4850 if (rtl819xusb_rx_command_packet(dev, pstats))
4851 return;
4852
4853 #ifdef SW_CRC_CHECK
4854 SwCrcCheck();
4855 #endif
4856
4857
4858 }
4859
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4860 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4861 struct ieee80211_rx_stats *stats)
4862 {
4863 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4864
4865 /* Get Rx Descriptor Information */
4866 stats->virtual_address = (u8 *)skb->data;
4867 stats->Length = desc->Length;
4868 stats->RxDrvInfoSize = 0;
4869 stats->RxBufShift = 0;
4870 stats->packetlength = stats->Length - scrclng;
4871 stats->fraglength = stats->packetlength;
4872 stats->fragoffset = 0;
4873 stats->ntotalfrag = 1;
4874 }
4875
4876
rtl8192_rx_cmd(struct sk_buff * skb)4877 static void rtl8192_rx_cmd(struct sk_buff *skb)
4878 {
4879 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4880 struct net_device *dev = info->dev;
4881 /* TODO */
4882 struct ieee80211_rx_stats stats = {
4883 .signal = 0,
4884 .noise = 0x100 - 98,
4885 .rate = 0,
4886 .freq = IEEE80211_24GHZ_BAND,
4887 };
4888
4889 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4890 query_rx_cmdpkt_desc_status(skb, &stats);
4891 /* prfd->queue_id = 1; */
4892
4893 /* Process the command packet received. */
4894
4895 rtl819xusb_process_received_packet(dev, &stats);
4896
4897 dev_kfree_skb_any(skb);
4898 }
4899 }
4900
rtl8192_irq_rx_tasklet(struct r8192_priv * priv)4901 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4902 {
4903 struct sk_buff *skb;
4904 struct rtl8192_rx_info *info;
4905
4906 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4907 info = (struct rtl8192_rx_info *)skb->cb;
4908 switch (info->out_pipe) {
4909 /* Nomal packet pipe */
4910 case 3:
4911 priv->IrpPendingCount--;
4912 rtl8192_rx_nomal(skb);
4913 break;
4914
4915 /* Command packet pipe */
4916 case 9:
4917 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4918 info->out_pipe);
4919
4920 rtl8192_rx_cmd(skb);
4921 break;
4922
4923 default: /* should never get here! */
4924 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4925 info->out_pipe);
4926 dev_kfree_skb(skb);
4927 break;
4928 }
4929 }
4930 }
4931
4932 static const struct net_device_ops rtl8192_netdev_ops = {
4933 .ndo_open = rtl8192_open,
4934 .ndo_stop = rtl8192_close,
4935 .ndo_get_stats = rtl8192_stats,
4936 .ndo_tx_timeout = tx_timeout,
4937 .ndo_do_ioctl = rtl8192_ioctl,
4938 .ndo_set_rx_mode = r8192_set_multicast,
4939 .ndo_set_mac_address = r8192_set_mac_adr,
4940 .ndo_validate_addr = eth_validate_addr,
4941 .ndo_start_xmit = ieee80211_xmit,
4942 };
4943
4944
4945 /****************************************************************************
4946 * ---------------------------- USB_STUFF---------------------------
4947 *****************************************************************************/
4948
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4949 static int rtl8192_usb_probe(struct usb_interface *intf,
4950 const struct usb_device_id *id)
4951 {
4952 struct net_device *dev = NULL;
4953 struct r8192_priv *priv = NULL;
4954 struct usb_device *udev = interface_to_usbdev(intf);
4955 int ret;
4956
4957 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4958
4959 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4960 if (!dev)
4961 return -ENOMEM;
4962
4963 usb_set_intfdata(intf, dev);
4964 SET_NETDEV_DEV(dev, &intf->dev);
4965 priv = ieee80211_priv(dev);
4966 priv->ieee80211 = netdev_priv(dev);
4967 priv->udev = udev;
4968
4969 dev->netdev_ops = &rtl8192_netdev_ops;
4970
4971 dev->wireless_handlers = &r8192_wx_handlers_def;
4972
4973 dev->type = ARPHRD_ETHER;
4974
4975 dev->watchdog_timeo = HZ * 3;
4976
4977 if (dev_alloc_name(dev, ifname) < 0) {
4978 RT_TRACE(COMP_INIT,
4979 "Oops: devname already taken! Trying wlan%%d...\n");
4980 ifname = "wlan%d";
4981 dev_alloc_name(dev, ifname);
4982 }
4983
4984 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4985 if (rtl8192_init(dev) != 0) {
4986 RT_TRACE(COMP_ERR, "Initialization failed");
4987 ret = -ENODEV;
4988 goto fail;
4989 }
4990 netif_carrier_off(dev);
4991 netif_stop_queue(dev);
4992
4993 ret = register_netdev(dev);
4994 if (ret)
4995 goto fail2;
4996
4997 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4998 rtl8192_proc_init_one(dev);
4999
5000
5001 RT_TRACE(COMP_INIT, "Driver probe completed\n");
5002 return 0;
5003
5004 fail2:
5005 rtl8192_down(dev);
5006 kfree(priv->pFirmware);
5007 priv->pFirmware = NULL;
5008 rtl8192_usb_deleteendpoints(dev);
5009 mdelay(10);
5010 fail:
5011 free_ieee80211(dev);
5012
5013 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
5014 return ret;
5015 }
5016
5017 /* detach all the work and timer structure declared or inititialize
5018 * in r8192U_init function.
5019 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)5020 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
5021 {
5022 cancel_work_sync(&priv->reset_wq);
5023 cancel_delayed_work(&priv->watch_dog_wq);
5024 cancel_delayed_work(&priv->update_beacon_wq);
5025 cancel_work_sync(&priv->qos_activate);
5026 }
5027
5028
rtl8192_usb_disconnect(struct usb_interface * intf)5029 static void rtl8192_usb_disconnect(struct usb_interface *intf)
5030 {
5031 struct net_device *dev = usb_get_intfdata(intf);
5032 struct r8192_priv *priv = ieee80211_priv(dev);
5033
5034 if (dev) {
5035 unregister_netdev(dev);
5036
5037 RT_TRACE(COMP_DOWN,
5038 "=============>wlan driver to be removed\n");
5039 rtl8192_proc_remove_one(dev);
5040
5041 rtl8192_down(dev);
5042 kfree(priv->pFirmware);
5043 priv->pFirmware = NULL;
5044 rtl8192_usb_deleteendpoints(dev);
5045 mdelay(10);
5046 }
5047 free_ieee80211(dev);
5048 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5049 }
5050
rtl8192_usb_module_init(void)5051 static int __init rtl8192_usb_module_init(void)
5052 {
5053 int ret;
5054
5055 #ifdef CONFIG_IEEE80211_DEBUG
5056 ret = ieee80211_debug_init();
5057 if (ret) {
5058 pr_err("ieee80211_debug_init() failed %d\n", ret);
5059 return ret;
5060 }
5061 #endif
5062 ret = ieee80211_crypto_init();
5063 if (ret) {
5064 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5065 return ret;
5066 }
5067
5068 ret = ieee80211_crypto_tkip_init();
5069 if (ret) {
5070 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5071 return ret;
5072 }
5073
5074 ret = ieee80211_crypto_ccmp_init();
5075 if (ret) {
5076 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5077 return ret;
5078 }
5079
5080 ret = ieee80211_crypto_wep_init();
5081 if (ret) {
5082 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5083 return ret;
5084 }
5085
5086 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5087 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5088 RT_TRACE(COMP_INIT, "Initializing module");
5089 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5090 rtl8192_proc_module_init();
5091 return usb_register(&rtl8192_usb_driver);
5092 }
5093
5094
rtl8192_usb_module_exit(void)5095 static void __exit rtl8192_usb_module_exit(void)
5096 {
5097 usb_deregister(&rtl8192_usb_driver);
5098
5099 RT_TRACE(COMP_DOWN, "Exiting");
5100 }
5101
EnableHWSecurityConfig8192(struct net_device * dev)5102 void EnableHWSecurityConfig8192(struct net_device *dev)
5103 {
5104 u8 SECR_value = 0x0;
5105 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5106 struct ieee80211_device *ieee = priv->ieee80211;
5107
5108 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5109 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) {
5110 SECR_value |= SCR_RxUseDK;
5111 SECR_value |= SCR_TxUseDK;
5112 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5113 SECR_value |= SCR_RxUseDK;
5114 SECR_value |= SCR_TxUseDK;
5115 }
5116 /* add HWSec active enable here.
5117 * default using hwsec. when peer AP is in N mode only and
5118 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5119 * it), use software security. when peer AP is in b,g,n mode mixed and
5120 * pairwise_key_type is none_aes, use g mode hw security.
5121 */
5122
5123 ieee->hwsec_active = 1;
5124
5125 /* add hwsec_support flag to totol control hw_sec on/off */
5126 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5127 ieee->hwsec_active = 0;
5128 SECR_value &= ~SCR_RxDecEnable;
5129 }
5130 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5131 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5132 SECR_value);
5133 write_nic_byte(dev, SECR, SECR_value);
5134 }
5135
5136
setKey(struct net_device * dev,u8 EntryNo,u8 KeyIndex,u16 KeyType,u8 * MacAddr,u8 DefaultKey,u32 * KeyContent)5137 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5138 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5139 {
5140 u32 TargetCommand = 0;
5141 u32 TargetContent = 0;
5142 u16 usConfig = 0;
5143 u8 i;
5144
5145 if (EntryNo >= TOTAL_CAM_ENTRY)
5146 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5147
5148 RT_TRACE(COMP_SEC,
5149 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5150 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5151
5152 if (DefaultKey)
5153 usConfig |= BIT(15) | (KeyType << 2);
5154 else
5155 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
5156
5157
5158 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5159 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5160 TargetCommand |= BIT(31) | BIT(16);
5161
5162 if (i == 0) { /* MAC|Config */
5163 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5164 (u32)(*(MacAddr + 1)) << 24 |
5165 (u32)usConfig;
5166
5167 write_nic_dword(dev, WCAMI, TargetContent);
5168 write_nic_dword(dev, RWCAM, TargetCommand);
5169 } else if (i == 1) { /* MAC */
5170 TargetContent = (u32)(*(MacAddr + 2)) |
5171 (u32)(*(MacAddr + 3)) << 8 |
5172 (u32)(*(MacAddr + 4)) << 16 |
5173 (u32)(*(MacAddr + 5)) << 24;
5174 write_nic_dword(dev, WCAMI, TargetContent);
5175 write_nic_dword(dev, RWCAM, TargetCommand);
5176 } else {
5177 /* Key Material */
5178 if (KeyContent) {
5179 write_nic_dword(dev, WCAMI,
5180 *(KeyContent + i - 2));
5181 write_nic_dword(dev, RWCAM, TargetCommand);
5182 }
5183 }
5184 }
5185 }
5186
5187 /***************************************************************************
5188 * ------------------- module init / exit stubs ----------------
5189 ****************************************************************************/
5190 module_init(rtl8192_usb_module_init);
5191 module_exit(rtl8192_usb_module_exit);
5192