1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 * Linux device driver for RTL8192U
5 *
6 * Based on the r8187 driver, which is:
7 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
8 *
9 * Contact Information:
10 * Jerry chuang <wlanfae@realtek.com>
11 */
12
13 #ifndef CONFIG_FORCE_HARD_FLOAT
__floatsidf(int i)14 double __floatsidf(int i)
15 {
16 return i;
17 }
18
__fixunsdfsi(double d)19 unsigned int __fixunsdfsi(double d)
20 {
21 return d;
22 }
23
__adddf3(double a,double b)24 double __adddf3(double a, double b)
25 {
26 return a + b;
27 }
28
__addsf3(float a,float b)29 double __addsf3(float a, float b)
30 {
31 return a + b;
32 }
33
__subdf3(double a,double b)34 double __subdf3(double a, double b)
35 {
36 return a - b;
37 }
38
__extendsfdf2(float a)39 double __extendsfdf2(float a)
40 {
41 return a;
42 }
43 #endif
44
45 #define CONFIG_RTL8192_IO_MAP
46
47 #include <linux/uaccess.h>
48 #include "r8192U_hw.h"
49 #include "r8192U.h"
50 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
51 #include "r8180_93cx6.h" /* Card EEPROM */
52 #include "r8192U_wx.h"
53 #include "r819xU_phy.h"
54 #include "r819xU_phyreg.h"
55 #include "r819xU_cmdpkt.h"
56 #include "r8192U_dm.h"
57 #include <linux/usb.h>
58 #include <linux/slab.h>
59 #include <linux/proc_fs.h>
60 #include <linux/seq_file.h>
61 /* FIXME: check if 2.6.7 is ok */
62
63 #include "dot11d.h"
64 /* set here to open your trace code. */
65 u32 rt_global_debug_component = COMP_DOWN |
66 COMP_SEC |
67 COMP_ERR; /* always open err flags on */
68
69 #define TOTAL_CAM_ENTRY 32
70 #define CAM_CONTENT_COUNT 8
71
72 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
73 /* Realtek */
74 {USB_DEVICE(0x0bda, 0x8709)},
75 /* Corega */
76 {USB_DEVICE(0x07aa, 0x0043)},
77 /* Belkin */
78 {USB_DEVICE(0x050d, 0x805E)},
79 /* Sitecom */
80 {USB_DEVICE(0x0df6, 0x0031)},
81 /* EnGenius */
82 {USB_DEVICE(0x1740, 0x9201)},
83 /* Dlink */
84 {USB_DEVICE(0x2001, 0x3301)},
85 /* Zinwell */
86 {USB_DEVICE(0x5a57, 0x0290)},
87 /* LG */
88 {USB_DEVICE(0x043e, 0x7a01)},
89 {}
90 };
91
92 MODULE_LICENSE("GPL");
93 MODULE_VERSION("V 1.1");
94 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
95 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
96
97 static char *ifname = "wlan%d";
98 static int hwwep = 1; /* default use hw. set 0 to use software security */
99 static int channels = 0x3fff;
100
101
102
103 module_param(ifname, charp, 0644);
104 module_param(hwwep, int, 0644);
105 module_param(channels, int, 0644);
106
107 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
108 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
109 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
110
111 static int rtl8192_usb_probe(struct usb_interface *intf,
112 const struct usb_device_id *id);
113 static void rtl8192_usb_disconnect(struct usb_interface *intf);
114
115
116 static struct usb_driver rtl8192_usb_driver = {
117 .name = RTL819XU_MODULE_NAME, /* Driver name */
118 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
119 .probe = rtl8192_usb_probe, /* probe fn */
120 .disconnect = rtl8192_usb_disconnect, /* remove fn */
121 .suspend = NULL, /* PM suspend fn */
122 .resume = NULL, /* PM resume fn */
123 };
124
125
126 struct CHANNEL_LIST {
127 u8 Channel[32];
128 u8 Len;
129 };
130
131 static struct CHANNEL_LIST ChannelPlan[] = {
132 /* FCC */
133 {{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},
134 /* IC */
135 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
136 /* ETSI */
137 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
138 /* Spain. Change to ETSI. */
139 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
140 /* France. Change to ETSI. */
141 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
142 /* MKK */
143 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
144 /* MKK1 */
145 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
146 /* Israel. */
147 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
148 /* For 11a , TELEC */
149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
150 /* MIC */
151 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
152 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
153 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
154 };
155
rtl819x_set_channel_map(u8 channel_plan,struct r8192_priv * priv)156 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
157 {
158 int i, max_chan = -1, min_chan = -1;
159 struct ieee80211_device *ieee = priv->ieee80211;
160
161 switch (channel_plan) {
162 case COUNTRY_CODE_FCC:
163 case COUNTRY_CODE_IC:
164 case COUNTRY_CODE_ETSI:
165 case COUNTRY_CODE_SPAIN:
166 case COUNTRY_CODE_FRANCE:
167 case COUNTRY_CODE_MKK:
168 case COUNTRY_CODE_MKK1:
169 case COUNTRY_CODE_ISRAEL:
170 case COUNTRY_CODE_TELEC:
171 case COUNTRY_CODE_MIC:
172 rtl8192u_dot11d_init(ieee);
173 ieee->bGlobalDomain = false;
174 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
175 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
176 min_chan = 1;
177 max_chan = 14;
178 } else {
179 RT_TRACE(COMP_ERR,
180 "unknown rf chip, can't set channel map in function:%s()\n",
181 __func__);
182 }
183 if (ChannelPlan[channel_plan].Len != 0) {
184 /* Clear old channel map */
185 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
186 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
187 /* Set new channel map */
188 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
189 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
190 break;
191 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
192 }
193 }
194 break;
195
196 case COUNTRY_CODE_GLOBAL_DOMAIN:
197 /* this flag enabled to follow 11d country IE setting,
198 * otherwise, it shall follow global domain settings.
199 */
200 GET_DOT11D_INFO(ieee)->dot11d_enabled = 0;
201 dot11d_reset(ieee);
202 ieee->bGlobalDomain = true;
203 break;
204
205 default:
206 break;
207 }
208 }
209
210
211
212
CamResetAllEntry(struct net_device * dev)213 static void CamResetAllEntry(struct net_device *dev)
214 {
215 u32 ulcommand = 0;
216 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
217 * associate to AP. However, ResetKey is called on
218 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
219 * condition, Cam can not be reset because upper layer will not set
220 * this static key again.
221 */
222 ulcommand |= BIT(31) | BIT(30);
223 write_nic_dword(dev, RWCAM, ulcommand);
224 }
225
write_nic_byte_E(struct net_device * dev,int indx,u8 data)226 int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
227 {
228 int status;
229 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
230 struct usb_device *udev = priv->udev;
231 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
232
233 if (!usbdata)
234 return -ENOMEM;
235 *usbdata = data;
236
237 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
238 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
239 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
240 kfree(usbdata);
241
242 if (status < 0) {
243 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
244 return status;
245 }
246 return 0;
247 }
248
read_nic_byte_E(struct net_device * dev,int indx,u8 * data)249 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
250 {
251 int status;
252 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
253 struct usb_device *udev = priv->udev;
254 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
255
256 if (!usbdata)
257 return -ENOMEM;
258
259 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
260 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
261 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
262 *data = *usbdata;
263 kfree(usbdata);
264
265 if (status < 0) {
266 netdev_err(dev, "%s failure status: %d\n", __func__, status);
267 return status;
268 }
269
270 return 0;
271 }
272
273 /* as 92U has extend page from 4 to 16, so modify functions below. */
write_nic_byte(struct net_device * dev,int indx,u8 data)274 int write_nic_byte(struct net_device *dev, int indx, u8 data)
275 {
276 int status;
277
278 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
279 struct usb_device *udev = priv->udev;
280 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
281
282 if (!usbdata)
283 return -ENOMEM;
284 *usbdata = data;
285
286 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
287 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
288 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
289 usbdata, 1, HZ / 2);
290 kfree(usbdata);
291
292 if (status < 0) {
293 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
294 return status;
295 }
296
297 return 0;
298 }
299
300
write_nic_word(struct net_device * dev,int indx,u16 data)301 int write_nic_word(struct net_device *dev, int indx, u16 data)
302 {
303 int status;
304
305 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
306 struct usb_device *udev = priv->udev;
307 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
308
309 if (!usbdata)
310 return -ENOMEM;
311 *usbdata = data;
312
313 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
314 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
315 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
316 usbdata, 2, HZ / 2);
317 kfree(usbdata);
318
319 if (status < 0) {
320 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
321 return status;
322 }
323
324 return 0;
325 }
326
327
write_nic_dword(struct net_device * dev,int indx,u32 data)328 int write_nic_dword(struct net_device *dev, int indx, u32 data)
329 {
330 int status;
331
332 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
333 struct usb_device *udev = priv->udev;
334 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
335
336 if (!usbdata)
337 return -ENOMEM;
338 *usbdata = data;
339
340 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
341 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
342 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
343 usbdata, 4, HZ / 2);
344 kfree(usbdata);
345
346
347 if (status < 0) {
348 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
349 return status;
350 }
351
352 return 0;
353 }
354
355
356
read_nic_byte(struct net_device * dev,int indx,u8 * data)357 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
358 {
359 int status;
360 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
361 struct usb_device *udev = priv->udev;
362 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
363
364 if (!usbdata)
365 return -ENOMEM;
366
367 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
368 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
369 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
370 usbdata, 1, HZ / 2);
371 *data = *usbdata;
372 kfree(usbdata);
373
374 if (status < 0) {
375 netdev_err(dev, "%s failure status: %d\n", __func__, status);
376 return status;
377 }
378
379 return 0;
380 }
381
382
383
read_nic_word(struct net_device * dev,int indx,u16 * data)384 int read_nic_word(struct net_device *dev, int indx, u16 *data)
385 {
386 int status;
387 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
388 struct usb_device *udev = priv->udev;
389 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
390
391 if (!usbdata)
392 return -ENOMEM;
393
394 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
395 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
396 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
397 usbdata, 2, HZ / 2);
398 *data = *usbdata;
399 kfree(usbdata);
400
401 if (status < 0) {
402 netdev_err(dev, "%s failure status: %d\n", __func__, status);
403 return status;
404 }
405
406 return 0;
407 }
408
read_nic_word_E(struct net_device * dev,int indx,u16 * data)409 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
410 {
411 int status;
412 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
413 struct usb_device *udev = priv->udev;
414 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
415
416 if (!usbdata)
417 return -ENOMEM;
418
419 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
420 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
421 indx | 0xfe00, 0, usbdata, 2, HZ / 2);
422 *data = *usbdata;
423 kfree(usbdata);
424
425 if (status < 0) {
426 netdev_err(dev, "%s failure status: %d\n", __func__, status);
427 return status;
428 }
429
430 return 0;
431 }
432
read_nic_dword(struct net_device * dev,int indx,u32 * data)433 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
434 {
435 int status;
436
437 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
438 struct usb_device *udev = priv->udev;
439 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
440
441 if (!usbdata)
442 return -ENOMEM;
443
444 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
445 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
446 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
447 usbdata, 4, HZ / 2);
448 *data = *usbdata;
449 kfree(usbdata);
450
451 if (status < 0) {
452 netdev_err(dev, "%s failure status: %d\n", __func__, status);
453 return status;
454 }
455
456 return 0;
457 }
458
459 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
460 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
461 /* this might still called in what was the PHY rtl8185/rtl8192 common code
462 * plans are to possibility turn it again in one common code...
463 */
force_pci_posting(struct net_device * dev)464 inline void force_pci_posting(struct net_device *dev)
465 {
466 }
467
468 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
469 static void rtl8192_restart(struct work_struct *work);
470 static void watch_dog_timer_callback(struct timer_list *t);
471
472 /****************************************************************************
473 * -----------------------------PROCFS STUFF-------------------------
474 ****************************************************************************/
475
476 static struct proc_dir_entry *rtl8192_proc;
477
proc_get_stats_ap(struct seq_file * m,void * v)478 static int __maybe_unused proc_get_stats_ap(struct seq_file *m, void *v)
479 {
480 struct net_device *dev = m->private;
481 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
482 struct ieee80211_device *ieee = priv->ieee80211;
483 struct ieee80211_network *target;
484
485 list_for_each_entry(target, &ieee->network_list, list) {
486 const char *wpa = "non_WPA";
487
488 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
489 wpa = "WPA";
490
491 seq_printf(m, "%s %s\n", target->ssid, wpa);
492 }
493
494 return 0;
495 }
496
proc_get_registers(struct seq_file * m,void * v)497 static int __maybe_unused proc_get_registers(struct seq_file *m, void *v)
498 {
499 struct net_device *dev = m->private;
500 int i, n, max = 0xff;
501 u8 byte_rd;
502
503 seq_puts(m, "\n####################page 0##################\n ");
504
505 for (n = 0; n <= max;) {
506 seq_printf(m, "\nD: %2x > ", n);
507
508 for (i = 0; i < 16 && n <= max; i++, n++) {
509 read_nic_byte(dev, 0x000 | n, &byte_rd);
510 seq_printf(m, "%2x ", byte_rd);
511 }
512 }
513
514 seq_puts(m, "\n####################page 1##################\n ");
515 for (n = 0; n <= max;) {
516 seq_printf(m, "\nD: %2x > ", n);
517
518 for (i = 0; i < 16 && n <= max; i++, n++) {
519 read_nic_byte(dev, 0x100 | n, &byte_rd);
520 seq_printf(m, "%2x ", byte_rd);
521 }
522 }
523
524 seq_puts(m, "\n####################page 3##################\n ");
525 for (n = 0; n <= max;) {
526 seq_printf(m, "\nD: %2x > ", n);
527
528 for (i = 0; i < 16 && n <= max; i++, n++) {
529 read_nic_byte(dev, 0x300 | n, &byte_rd);
530 seq_printf(m, "%2x ", byte_rd);
531 }
532 }
533
534 seq_putc(m, '\n');
535 return 0;
536 }
537
proc_get_stats_tx(struct seq_file * m,void * v)538 static int __maybe_unused proc_get_stats_tx(struct seq_file *m, void *v)
539 {
540 struct net_device *dev = m->private;
541 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
542
543 seq_printf(m,
544 "TX VI priority ok int: %lu\n"
545 "TX VI priority error int: %lu\n"
546 "TX VO priority ok int: %lu\n"
547 "TX VO priority error int: %lu\n"
548 "TX BE priority ok int: %lu\n"
549 "TX BE priority error int: %lu\n"
550 "TX BK priority ok int: %lu\n"
551 "TX BK priority error int: %lu\n"
552 "TX MANAGE priority ok int: %lu\n"
553 "TX MANAGE priority error int: %lu\n"
554 "TX BEACON priority ok int: %lu\n"
555 "TX BEACON priority error int: %lu\n"
556 "TX queue resume: %lu\n"
557 "TX queue stopped?: %d\n"
558 "TX fifo overflow: %lu\n"
559 "TX VI queue: %d\n"
560 "TX VO queue: %d\n"
561 "TX BE queue: %d\n"
562 "TX BK queue: %d\n"
563 "TX VI dropped: %lu\n"
564 "TX VO dropped: %lu\n"
565 "TX BE dropped: %lu\n"
566 "TX BK dropped: %lu\n"
567 "TX total data packets %lu\n",
568 priv->stats.txviokint,
569 priv->stats.txvierr,
570 priv->stats.txvookint,
571 priv->stats.txvoerr,
572 priv->stats.txbeokint,
573 priv->stats.txbeerr,
574 priv->stats.txbkokint,
575 priv->stats.txbkerr,
576 priv->stats.txmanageokint,
577 priv->stats.txmanageerr,
578 priv->stats.txbeaconokint,
579 priv->stats.txbeaconerr,
580 priv->stats.txresumed,
581 netif_queue_stopped(dev),
582 priv->stats.txoverflow,
583 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
584 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
585 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
586 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
587 priv->stats.txvidrop,
588 priv->stats.txvodrop,
589 priv->stats.txbedrop,
590 priv->stats.txbkdrop,
591 priv->stats.txdatapkt
592 );
593
594 return 0;
595 }
596
proc_get_stats_rx(struct seq_file * m,void * v)597 static int __maybe_unused proc_get_stats_rx(struct seq_file *m, void *v)
598 {
599 struct net_device *dev = m->private;
600 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
601
602 seq_printf(m,
603 "RX packets: %lu\n"
604 "RX urb status error: %lu\n"
605 "RX invalid urb error: %lu\n",
606 priv->stats.rxoktotal,
607 priv->stats.rxstaterr,
608 priv->stats.rxurberr);
609
610 return 0;
611 }
612
rtl8192_proc_module_init(void)613 static void rtl8192_proc_module_init(void)
614 {
615 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
616 rtl8192_proc = proc_mkdir(RTL819XU_MODULE_NAME, init_net.proc_net);
617 }
618
rtl8192_proc_init_one(struct net_device * dev)619 static void rtl8192_proc_init_one(struct net_device *dev)
620 {
621 struct proc_dir_entry *dir;
622
623 if (!rtl8192_proc)
624 return;
625
626 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
627 if (!dir)
628 return;
629
630 proc_create_single("stats-rx", S_IFREG | S_IRUGO, dir,
631 proc_get_stats_rx);
632 proc_create_single("stats-tx", S_IFREG | S_IRUGO, dir,
633 proc_get_stats_tx);
634 proc_create_single("stats-ap", S_IFREG | S_IRUGO, dir,
635 proc_get_stats_ap);
636 proc_create_single("registers", S_IFREG | S_IRUGO, dir,
637 proc_get_registers);
638 }
639
rtl8192_proc_remove_one(struct net_device * dev)640 static void rtl8192_proc_remove_one(struct net_device *dev)
641 {
642 remove_proc_subtree(dev->name, rtl8192_proc);
643 }
644
645 /****************************************************************************
646 * -----------------------------MISC STUFF-------------------------
647 *****************************************************************************/
648
check_nic_enough_desc(struct net_device * dev,int queue_index)649 short check_nic_enough_desc(struct net_device *dev, int queue_index)
650 {
651 struct r8192_priv *priv = ieee80211_priv(dev);
652 int used = atomic_read(&priv->tx_pending[queue_index]);
653
654 return (used < MAX_TX_URB);
655 }
656
tx_timeout(struct net_device * dev)657 static void tx_timeout(struct net_device *dev)
658 {
659 struct r8192_priv *priv = ieee80211_priv(dev);
660
661 schedule_work(&priv->reset_wq);
662 }
663
rtl8192_update_msr(struct net_device * dev)664 void rtl8192_update_msr(struct net_device *dev)
665 {
666 struct r8192_priv *priv = ieee80211_priv(dev);
667 u8 msr;
668
669 read_nic_byte(dev, MSR, &msr);
670 msr &= ~MSR_LINK_MASK;
671
672 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
673 * msr must be updated if the state is ASSOCIATING.
674 * this is intentional and make sense for ad-hoc and
675 * master (see the create BSS/IBSS func)
676 */
677 if (priv->ieee80211->state == IEEE80211_LINKED) {
678 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
679 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
680 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
681 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
682 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
683 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
684
685 } else {
686 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
687 }
688
689 write_nic_byte(dev, MSR, msr);
690 }
691
rtl8192_set_chan(struct net_device * dev,short ch)692 void rtl8192_set_chan(struct net_device *dev, short ch)
693 {
694 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
695
696 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
697 priv->chan = ch;
698
699 /* this hack should avoid frame TX during channel setting*/
700
701 /* need to implement rf set channel here */
702
703 if (priv->rf_set_chan)
704 priv->rf_set_chan(dev, priv->chan);
705 mdelay(10);
706 }
707
708 static void rtl8192_rx_isr(struct urb *urb);
709
get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats * pstats)710 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
711 {
712 return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize
713 + pstats->RxBufShift);
714 }
715
rtl8192_rx_enable(struct net_device * dev)716 void rtl8192_rx_enable(struct net_device *dev)
717 {
718 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
719 struct urb *entry;
720 struct sk_buff *skb;
721 struct rtl8192_rx_info *info;
722
723 /* nomal packet rx procedure */
724 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
725 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
726 if (!skb)
727 break;
728 entry = usb_alloc_urb(0, GFP_KERNEL);
729 if (!entry) {
730 kfree_skb(skb);
731 break;
732 }
733 usb_fill_bulk_urb(entry, priv->udev,
734 usb_rcvbulkpipe(priv->udev, 3),
735 skb_tail_pointer(skb),
736 RX_URB_SIZE, rtl8192_rx_isr, skb);
737 info = (struct rtl8192_rx_info *)skb->cb;
738 info->urb = entry;
739 info->dev = dev;
740 info->out_pipe = 3; /* denote rx normal packet queue */
741 skb_queue_tail(&priv->rx_queue, skb);
742 usb_submit_urb(entry, GFP_KERNEL);
743 }
744
745 /* command packet rx procedure */
746 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
747 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
748 if (!skb)
749 break;
750 entry = usb_alloc_urb(0, GFP_KERNEL);
751 if (!entry) {
752 kfree_skb(skb);
753 break;
754 }
755 usb_fill_bulk_urb(entry, priv->udev,
756 usb_rcvbulkpipe(priv->udev, 9),
757 skb_tail_pointer(skb),
758 RX_URB_SIZE, rtl8192_rx_isr, skb);
759 info = (struct rtl8192_rx_info *)skb->cb;
760 info->urb = entry;
761 info->dev = dev;
762 info->out_pipe = 9; /* denote rx cmd packet queue */
763 skb_queue_tail(&priv->rx_queue, skb);
764 usb_submit_urb(entry, GFP_KERNEL);
765 }
766 }
767
rtl8192_set_rxconf(struct net_device * dev)768 void rtl8192_set_rxconf(struct net_device *dev)
769 {
770 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
771 u32 rxconf;
772
773 read_nic_dword(dev, RCR, &rxconf);
774 rxconf = rxconf & ~MAC_FILTER_MASK;
775 rxconf = rxconf | RCR_AMF;
776 rxconf = rxconf | RCR_ADF;
777 rxconf = rxconf | RCR_AB;
778 rxconf = rxconf | RCR_AM;
779
780 if (dev->flags & IFF_PROMISC)
781 DMESG("NIC in promisc mode");
782
783 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
784 dev->flags & IFF_PROMISC) {
785 rxconf = rxconf | RCR_AAP;
786 } else {
787 rxconf = rxconf | RCR_APM;
788 rxconf = rxconf | RCR_CBSSID;
789 }
790
791
792 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
793 rxconf = rxconf | RCR_AICV;
794 rxconf = rxconf | RCR_APWRMGT;
795 }
796
797 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
798 rxconf = rxconf | RCR_ACRC32;
799
800
801 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
802 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
803 rxconf = rxconf & ~MAX_RX_DMA_MASK;
804 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
805
806 rxconf = rxconf | RCR_ONLYERLPKT;
807
808 write_nic_dword(dev, RCR, rxconf);
809 }
810
rtl8192_rtx_disable(struct net_device * dev)811 void rtl8192_rtx_disable(struct net_device *dev)
812 {
813 u8 cmd;
814 struct r8192_priv *priv = ieee80211_priv(dev);
815 struct sk_buff *skb;
816 struct rtl8192_rx_info *info;
817
818 read_nic_byte(dev, CMDR, &cmd);
819 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
820 force_pci_posting(dev);
821 mdelay(10);
822
823 while ((skb = __skb_dequeue(&priv->rx_queue))) {
824 info = (struct rtl8192_rx_info *)skb->cb;
825 if (!info->urb)
826 continue;
827
828 usb_kill_urb(info->urb);
829 kfree_skb(skb);
830 }
831
832 if (skb_queue_len(&priv->skb_queue))
833 netdev_warn(dev, "skb_queue not empty\n");
834
835 skb_queue_purge(&priv->skb_queue);
836 }
837
838 /* The prototype of rx_isr has changed since one version of Linux Kernel */
rtl8192_rx_isr(struct urb * urb)839 static void rtl8192_rx_isr(struct urb *urb)
840 {
841 struct sk_buff *skb = (struct sk_buff *)urb->context;
842 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
843 struct net_device *dev = info->dev;
844 struct r8192_priv *priv = ieee80211_priv(dev);
845 int out_pipe = info->out_pipe;
846 int err;
847
848 if (!priv->up)
849 return;
850
851 if (unlikely(urb->status)) {
852 info->urb = NULL;
853 priv->stats.rxstaterr++;
854 priv->ieee80211->stats.rx_errors++;
855 usb_free_urb(urb);
856 return;
857 }
858 skb_unlink(skb, &priv->rx_queue);
859 skb_put(skb, urb->actual_length);
860
861 skb_queue_tail(&priv->skb_queue, skb);
862 tasklet_schedule(&priv->irq_rx_tasklet);
863
864 skb = dev_alloc_skb(RX_URB_SIZE);
865 if (unlikely(!skb)) {
866 usb_free_urb(urb);
867 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
868 /* TODO check rx queue length and refill *somewhere* */
869 return;
870 }
871
872 usb_fill_bulk_urb(urb, priv->udev,
873 usb_rcvbulkpipe(priv->udev, out_pipe),
874 skb_tail_pointer(skb),
875 RX_URB_SIZE, rtl8192_rx_isr, skb);
876
877 info = (struct rtl8192_rx_info *)skb->cb;
878 info->urb = urb;
879 info->dev = dev;
880 info->out_pipe = out_pipe;
881
882 urb->transfer_buffer = skb_tail_pointer(skb);
883 urb->context = skb;
884 skb_queue_tail(&priv->rx_queue, skb);
885 err = usb_submit_urb(urb, GFP_ATOMIC);
886 if (err && err != EPERM)
887 netdev_err(dev,
888 "can not submit rxurb, err is %x, URB status is %x\n",
889 err, urb->status);
890 }
891
rtl819xusb_rx_command_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)892 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
893 struct ieee80211_rx_stats *pstats)
894 {
895 u32 status;
896
897 status = cmpk_message_handle_rx(dev, pstats);
898 if (status)
899 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
900
901 return status;
902 }
903
904
rtl8192_data_hard_stop(struct net_device * dev)905 static void rtl8192_data_hard_stop(struct net_device *dev)
906 {
907 /* FIXME !! */
908 }
909
910
rtl8192_data_hard_resume(struct net_device * dev)911 static void rtl8192_data_hard_resume(struct net_device *dev)
912 {
913 /* FIXME !! */
914 }
915
916 /* this function TX data frames when the ieee80211 stack requires this.
917 * It checks also if we need to stop the ieee tx queue, eventually do it
918 */
rtl8192_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)919 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
920 int rate)
921 {
922 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
923 int ret;
924 unsigned long flags;
925 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
926 u8 queue_index = tcb_desc->queue_index;
927
928 /* shall not be referred by command packet */
929 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
930
931 spin_lock_irqsave(&priv->tx_lock, flags);
932
933 *(struct net_device **)(skb->cb) = dev;
934 tcb_desc->bTxEnableFwCalcDur = 1;
935 skb_push(skb, priv->ieee80211->tx_headroom);
936 ret = rtl8192_tx(dev, skb);
937
938 spin_unlock_irqrestore(&priv->tx_lock, flags);
939 }
940
941 /* This is a rough attempt to TX a frame
942 * This is called by the ieee 80211 stack to TX management frames.
943 * If the ring is full packet are dropped (for data frame the queue
944 * is stopped before this can happen).
945 */
rtl8192_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)946 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
947 {
948 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
949 int ret;
950 unsigned long flags;
951 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
952 u8 queue_index = tcb_desc->queue_index;
953
954
955 spin_lock_irqsave(&priv->tx_lock, flags);
956
957 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
958 if (queue_index == TXCMD_QUEUE) {
959 skb_push(skb, USB_HWDESC_HEADER_LEN);
960 rtl819xU_tx_cmd(dev, skb);
961 ret = 1;
962 } else {
963 skb_push(skb, priv->ieee80211->tx_headroom);
964 ret = rtl8192_tx(dev, skb);
965 }
966
967 spin_unlock_irqrestore(&priv->tx_lock, flags);
968
969 return ret;
970 }
971
rtl8192_tx_isr(struct urb * tx_urb)972 static void rtl8192_tx_isr(struct urb *tx_urb)
973 {
974 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
975 struct net_device *dev;
976 struct r8192_priv *priv = NULL;
977 struct cb_desc *tcb_desc;
978 u8 queue_index;
979
980 if (!skb)
981 return;
982
983 dev = *(struct net_device **)(skb->cb);
984 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
985 queue_index = tcb_desc->queue_index;
986
987 priv = ieee80211_priv(dev);
988
989 if (tcb_desc->queue_index != TXCMD_QUEUE) {
990 if (tx_urb->status == 0) {
991 netif_trans_update(dev);
992 priv->stats.txoktotal++;
993 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
994 priv->stats.txbytesunicast +=
995 (skb->len - priv->ieee80211->tx_headroom);
996 } else {
997 priv->ieee80211->stats.tx_errors++;
998 /* TODO */
999 }
1000 }
1001
1002 /* free skb and tx_urb */
1003 dev_kfree_skb_any(skb);
1004 usb_free_urb(tx_urb);
1005 atomic_dec(&priv->tx_pending[queue_index]);
1006
1007 /*
1008 * Handle HW Beacon:
1009 * We had transfer our beacon frame to host controller at this moment.
1010 *
1011 *
1012 * Caution:
1013 * Handling the wait queue of command packets.
1014 * For Tx command packets, we must not do TCB fragment because it is
1015 * not handled right now. We must cut the packets to match the size of
1016 * TX_CMD_PKT before we send it.
1017 */
1018
1019 /* Handle MPDU in wait queue. */
1020 if (queue_index != BEACON_QUEUE) {
1021 /* Don't send data frame during scanning.*/
1022 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1023 (!(priv->ieee80211->queue_stop))) {
1024 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1025 if (skb)
1026 priv->ieee80211->softmac_hard_start_xmit(skb,
1027 dev);
1028
1029 return; /* avoid further processing AMSDU */
1030 }
1031 }
1032 }
1033
rtl8192_config_rate(struct net_device * dev,u16 * rate_config)1034 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1035 {
1036 struct r8192_priv *priv = ieee80211_priv(dev);
1037 struct ieee80211_network *net;
1038 u8 i = 0, basic_rate = 0;
1039
1040 net = &priv->ieee80211->current_network;
1041
1042 for (i = 0; i < net->rates_len; i++) {
1043 basic_rate = net->rates[i] & 0x7f;
1044 switch (basic_rate) {
1045 case MGN_1M:
1046 *rate_config |= RRSR_1M;
1047 break;
1048 case MGN_2M:
1049 *rate_config |= RRSR_2M;
1050 break;
1051 case MGN_5_5M:
1052 *rate_config |= RRSR_5_5M;
1053 break;
1054 case MGN_11M:
1055 *rate_config |= RRSR_11M;
1056 break;
1057 case MGN_6M:
1058 *rate_config |= RRSR_6M;
1059 break;
1060 case MGN_9M:
1061 *rate_config |= RRSR_9M;
1062 break;
1063 case MGN_12M:
1064 *rate_config |= RRSR_12M;
1065 break;
1066 case MGN_18M:
1067 *rate_config |= RRSR_18M;
1068 break;
1069 case MGN_24M:
1070 *rate_config |= RRSR_24M;
1071 break;
1072 case MGN_36M:
1073 *rate_config |= RRSR_36M;
1074 break;
1075 case MGN_48M:
1076 *rate_config |= RRSR_48M;
1077 break;
1078 case MGN_54M:
1079 *rate_config |= RRSR_54M;
1080 break;
1081 }
1082 }
1083 for (i = 0; i < net->rates_ex_len; i++) {
1084 basic_rate = net->rates_ex[i] & 0x7f;
1085 switch (basic_rate) {
1086 case MGN_1M:
1087 *rate_config |= RRSR_1M;
1088 break;
1089 case MGN_2M:
1090 *rate_config |= RRSR_2M;
1091 break;
1092 case MGN_5_5M:
1093 *rate_config |= RRSR_5_5M;
1094 break;
1095 case MGN_11M:
1096 *rate_config |= RRSR_11M;
1097 break;
1098 case MGN_6M:
1099 *rate_config |= RRSR_6M;
1100 break;
1101 case MGN_9M:
1102 *rate_config |= RRSR_9M;
1103 break;
1104 case MGN_12M:
1105 *rate_config |= RRSR_12M;
1106 break;
1107 case MGN_18M:
1108 *rate_config |= RRSR_18M;
1109 break;
1110 case MGN_24M:
1111 *rate_config |= RRSR_24M;
1112 break;
1113 case MGN_36M:
1114 *rate_config |= RRSR_36M;
1115 break;
1116 case MGN_48M:
1117 *rate_config |= RRSR_48M;
1118 break;
1119 case MGN_54M:
1120 *rate_config |= RRSR_54M;
1121 break;
1122 }
1123 }
1124 }
1125
1126
1127 #define SHORT_SLOT_TIME 9
1128 #define NON_SHORT_SLOT_TIME 20
1129
rtl8192_update_cap(struct net_device * dev,u16 cap)1130 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1131 {
1132 u32 tmp = 0;
1133 struct r8192_priv *priv = ieee80211_priv(dev);
1134 struct ieee80211_network *net = &priv->ieee80211->current_network;
1135
1136 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1137 tmp = priv->basic_rate;
1138 if (priv->short_preamble)
1139 tmp |= BRSR_AckShortPmb;
1140 write_nic_dword(dev, RRSR, tmp);
1141
1142 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1143 u8 slot_time = 0;
1144
1145 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1146 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1147 /* short slot time */
1148 slot_time = SHORT_SLOT_TIME;
1149 else /* long slot time */
1150 slot_time = NON_SHORT_SLOT_TIME;
1151 priv->slot_time = slot_time;
1152 write_nic_byte(dev, SLOT_TIME, slot_time);
1153 }
1154 }
1155
rtl8192_net_update(struct net_device * dev)1156 static void rtl8192_net_update(struct net_device *dev)
1157 {
1158 struct r8192_priv *priv = ieee80211_priv(dev);
1159 struct ieee80211_network *net;
1160 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1161 u16 rate_config = 0;
1162
1163 net = &priv->ieee80211->current_network;
1164
1165 rtl8192_config_rate(dev, &rate_config);
1166 priv->basic_rate = rate_config & 0x15f;
1167
1168 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1169 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1170
1171 rtl8192_update_msr(dev);
1172 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1173 write_nic_word(dev, ATIMWND, 2);
1174 write_nic_word(dev, BCN_DMATIME, 1023);
1175 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1176 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1177 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1178 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1179 /* TODO: BcnIFS may required to be changed on ASIC */
1180 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1181
1182 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1183 }
1184 }
1185
1186 /* temporary hw beacon is not used any more.
1187 * open it when necessary
1188 */
rtl819xusb_beacon_tx(struct net_device * dev,u16 tx_rate)1189 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1190 {
1191
1192 }
1193
rtl819xU_tx_cmd(struct net_device * dev,struct sk_buff * skb)1194 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1195 {
1196 struct r8192_priv *priv = ieee80211_priv(dev);
1197 int status;
1198 struct urb *tx_urb;
1199 unsigned int idx_pipe;
1200 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data;
1201 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1202 u8 queue_index = tcb_desc->queue_index;
1203
1204 atomic_inc(&priv->tx_pending[queue_index]);
1205 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1206 if (!tx_urb) {
1207 dev_kfree_skb(skb);
1208 return -ENOMEM;
1209 }
1210
1211 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1212 /* Tx descriptor ought to be set according to the skb->cb */
1213 pdesc->FirstSeg = 1;
1214 pdesc->LastSeg = 1;
1215 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1216 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1217 pdesc->OWN = 1;
1218 pdesc->LINIP = tcb_desc->bLastIniPkt;
1219
1220 /*---------------------------------------------------------------------
1221 * Fill up USB_OUT_CONTEXT.
1222 *---------------------------------------------------------------------
1223 */
1224 idx_pipe = 0x04;
1225 usb_fill_bulk_urb(tx_urb, priv->udev,
1226 usb_sndbulkpipe(priv->udev, idx_pipe),
1227 skb->data, skb->len, rtl8192_tx_isr, skb);
1228
1229 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1230
1231 if (!status)
1232 return 0;
1233
1234 DMESGE("Error TX CMD URB, error %d", status);
1235 return -1;
1236 }
1237
1238 /*
1239 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1240 * in TxFwInfo data structure
1241 * 2006.10.30 by Emily
1242 *
1243 * \param QUEUEID Software Queue
1244 */
MapHwQueueToFirmwareQueue(u8 QueueID)1245 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1246 {
1247 u8 QueueSelect = 0x0; /* default set to */
1248
1249 switch (QueueID) {
1250 case BE_QUEUE:
1251 QueueSelect = QSLT_BE;
1252 break;
1253
1254 case BK_QUEUE:
1255 QueueSelect = QSLT_BK;
1256 break;
1257
1258 case VO_QUEUE:
1259 QueueSelect = QSLT_VO;
1260 break;
1261
1262 case VI_QUEUE:
1263 QueueSelect = QSLT_VI;
1264 break;
1265 case MGNT_QUEUE:
1266 QueueSelect = QSLT_MGNT;
1267 break;
1268
1269 case BEACON_QUEUE:
1270 QueueSelect = QSLT_BEACON;
1271 break;
1272
1273 /* TODO: mark other queue selection until we verify it is OK */
1274 /* TODO: Remove Assertions */
1275 case TXCMD_QUEUE:
1276 QueueSelect = QSLT_CMD;
1277 break;
1278 case HIGH_QUEUE:
1279 QueueSelect = QSLT_HIGH;
1280 break;
1281
1282 default:
1283 RT_TRACE(COMP_ERR,
1284 "TransmitTCB(): Impossible Queue Selection: %d\n",
1285 QueueID);
1286 break;
1287 }
1288 return QueueSelect;
1289 }
1290
MRateToHwRate8190Pci(u8 rate)1291 static u8 MRateToHwRate8190Pci(u8 rate)
1292 {
1293 u8 ret = DESC90_RATE1M;
1294
1295 switch (rate) {
1296 case MGN_1M:
1297 ret = DESC90_RATE1M;
1298 break;
1299 case MGN_2M:
1300 ret = DESC90_RATE2M;
1301 break;
1302 case MGN_5_5M:
1303 ret = DESC90_RATE5_5M;
1304 break;
1305 case MGN_11M:
1306 ret = DESC90_RATE11M;
1307 break;
1308 case MGN_6M:
1309 ret = DESC90_RATE6M;
1310 break;
1311 case MGN_9M:
1312 ret = DESC90_RATE9M;
1313 break;
1314 case MGN_12M:
1315 ret = DESC90_RATE12M;
1316 break;
1317 case MGN_18M:
1318 ret = DESC90_RATE18M;
1319 break;
1320 case MGN_24M:
1321 ret = DESC90_RATE24M;
1322 break;
1323 case MGN_36M:
1324 ret = DESC90_RATE36M;
1325 break;
1326 case MGN_48M:
1327 ret = DESC90_RATE48M;
1328 break;
1329 case MGN_54M:
1330 ret = DESC90_RATE54M;
1331 break;
1332
1333 /* HT rate since here */
1334 case MGN_MCS0:
1335 ret = DESC90_RATEMCS0;
1336 break;
1337 case MGN_MCS1:
1338 ret = DESC90_RATEMCS1;
1339 break;
1340 case MGN_MCS2:
1341 ret = DESC90_RATEMCS2;
1342 break;
1343 case MGN_MCS3:
1344 ret = DESC90_RATEMCS3;
1345 break;
1346 case MGN_MCS4:
1347 ret = DESC90_RATEMCS4;
1348 break;
1349 case MGN_MCS5:
1350 ret = DESC90_RATEMCS5;
1351 break;
1352 case MGN_MCS6:
1353 ret = DESC90_RATEMCS6;
1354 break;
1355 case MGN_MCS7:
1356 ret = DESC90_RATEMCS7;
1357 break;
1358 case MGN_MCS8:
1359 ret = DESC90_RATEMCS8;
1360 break;
1361 case MGN_MCS9:
1362 ret = DESC90_RATEMCS9;
1363 break;
1364 case MGN_MCS10:
1365 ret = DESC90_RATEMCS10;
1366 break;
1367 case MGN_MCS11:
1368 ret = DESC90_RATEMCS11;
1369 break;
1370 case MGN_MCS12:
1371 ret = DESC90_RATEMCS12;
1372 break;
1373 case MGN_MCS13:
1374 ret = DESC90_RATEMCS13;
1375 break;
1376 case MGN_MCS14:
1377 ret = DESC90_RATEMCS14;
1378 break;
1379 case MGN_MCS15:
1380 ret = DESC90_RATEMCS15;
1381 break;
1382 case (0x80 | 0x20):
1383 ret = DESC90_RATEMCS32;
1384 break;
1385
1386 default:
1387 break;
1388 }
1389 return ret;
1390 }
1391
1392
QueryIsShort(u8 TxHT,u8 TxRate,struct cb_desc * tcb_desc)1393 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1394 {
1395 u8 tmp_Short;
1396
1397 tmp_Short = (TxHT == 1) ?
1398 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1399 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1400
1401 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1402 tmp_Short = 0;
1403
1404 return tmp_Short;
1405 }
1406
tx_zero_isr(struct urb * tx_urb)1407 static void tx_zero_isr(struct urb *tx_urb)
1408 {
1409 }
1410
1411 /*
1412 * The tx procedure is just as following,
1413 * skb->cb will contain all the following information,
1414 * priority, morefrag, rate, &dev.
1415 */
rtl8192_tx(struct net_device * dev,struct sk_buff * skb)1416 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1417 {
1418 struct r8192_priv *priv = ieee80211_priv(dev);
1419 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1420 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data;
1421 struct tx_fwinfo_819x_usb *tx_fwinfo =
1422 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1423 struct usb_device *udev = priv->udev;
1424 int pend;
1425 int status;
1426 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1427 unsigned int idx_pipe;
1428
1429 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1430 /* we are locked here so the two atomic_read and inc are executed
1431 * without interleaves
1432 * !!! For debug purpose
1433 */
1434 if (pend > MAX_TX_URB) {
1435 netdev_dbg(dev, "To discard skb packet!\n");
1436 dev_kfree_skb_any(skb);
1437 return -1;
1438 }
1439
1440 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1441 if (!tx_urb) {
1442 dev_kfree_skb_any(skb);
1443 return -ENOMEM;
1444 }
1445
1446 /* Fill Tx firmware info */
1447 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb));
1448 /* DWORD 0 */
1449 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1450 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1451 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1452 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1453 tcb_desc);
1454 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1455 tx_fwinfo->AllowAggregation = 1;
1456 /* DWORD 1 */
1457 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1458 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1459 } else {
1460 tx_fwinfo->AllowAggregation = 0;
1461 /* DWORD 1 */
1462 tx_fwinfo->RxMF = 0;
1463 tx_fwinfo->RxAMD = 0;
1464 }
1465
1466 /* Protection mode related */
1467 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1468 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1469 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1470 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1471 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1472 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1473 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1474 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1475 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1476
1477 /* Set Bandwidth and sub-channel settings. */
1478 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1479 if (tcb_desc->bPacketBW) {
1480 tx_fwinfo->TxBandwidth = 1;
1481 /* use duplicated mode */
1482 tx_fwinfo->TxSubCarrier = 0;
1483 } else {
1484 tx_fwinfo->TxBandwidth = 0;
1485 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1486 }
1487 } else {
1488 tx_fwinfo->TxBandwidth = 0;
1489 tx_fwinfo->TxSubCarrier = 0;
1490 }
1491
1492 /* Fill Tx descriptor */
1493 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb));
1494 /* DWORD 0 */
1495 tx_desc->LINIP = 0;
1496 tx_desc->CmdInit = 1;
1497 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8;
1498 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1499
1500 /*DWORD 1*/
1501 tx_desc->SecCAMID = 0;
1502 tx_desc->RATid = tcb_desc->RATRIndex;
1503 tx_desc->NoEnc = 1;
1504 tx_desc->SecType = 0x0;
1505 if (tcb_desc->bHwSec) {
1506 switch (priv->ieee80211->pairwise_key_type) {
1507 case KEY_TYPE_WEP40:
1508 case KEY_TYPE_WEP104:
1509 tx_desc->SecType = 0x1;
1510 tx_desc->NoEnc = 0;
1511 break;
1512 case KEY_TYPE_TKIP:
1513 tx_desc->SecType = 0x2;
1514 tx_desc->NoEnc = 0;
1515 break;
1516 case KEY_TYPE_CCMP:
1517 tx_desc->SecType = 0x3;
1518 tx_desc->NoEnc = 0;
1519 break;
1520 case KEY_TYPE_NA:
1521 tx_desc->SecType = 0x0;
1522 tx_desc->NoEnc = 1;
1523 break;
1524 }
1525 }
1526
1527 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1528 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb);
1529
1530 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1531 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1532
1533 /* Fill fields that are required to be initialized in
1534 * all of the descriptors
1535 */
1536 /* DWORD 0 */
1537 tx_desc->FirstSeg = 1;
1538 tx_desc->LastSeg = 1;
1539 tx_desc->OWN = 1;
1540
1541 /* DWORD 2 */
1542 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1543 idx_pipe = 0x5;
1544
1545 /* To submit bulk urb */
1546 usb_fill_bulk_urb(tx_urb, udev,
1547 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1548 skb->len, rtl8192_tx_isr, skb);
1549
1550 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1551 if (!status) {
1552 /* We need to send 0 byte packet whenever
1553 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1554 * been transmitted. Otherwise, it will be halt to wait for
1555 * another packet.
1556 */
1557 bool bSend0Byte = false;
1558 u8 zero = 0;
1559
1560 if (udev->speed == USB_SPEED_HIGH) {
1561 if (skb->len > 0 && skb->len % 512 == 0)
1562 bSend0Byte = true;
1563 } else {
1564 if (skb->len > 0 && skb->len % 64 == 0)
1565 bSend0Byte = true;
1566 }
1567 if (bSend0Byte) {
1568 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1569 if (!tx_urb_zero)
1570 return -ENOMEM;
1571 usb_fill_bulk_urb(tx_urb_zero, udev,
1572 usb_sndbulkpipe(udev, idx_pipe),
1573 &zero, 0, tx_zero_isr, dev);
1574 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1575 if (status) {
1576 RT_TRACE(COMP_ERR,
1577 "Error TX URB for zero byte %d, error %d",
1578 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1579 status);
1580 return -1;
1581 }
1582 }
1583 netif_trans_update(dev);
1584 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1585 return 0;
1586 }
1587
1588 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1589 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1590 status);
1591 return -1;
1592 }
1593
rtl8192_usb_initendpoints(struct net_device * dev)1594 static short rtl8192_usb_initendpoints(struct net_device *dev)
1595 {
1596 struct r8192_priv *priv = ieee80211_priv(dev);
1597
1598 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *),
1599 GFP_KERNEL);
1600 if (!priv->rx_urb)
1601 return -ENOMEM;
1602
1603 #ifndef JACKSON_NEW_RX
1604 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1605 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1606 if (!priv->rx_urb[i])
1607 return -ENOMEM;
1608
1609 priv->rx_urb[i]->transfer_buffer =
1610 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1611 if (!priv->rx_urb[i]->transfer_buffer)
1612 return -ENOMEM;
1613
1614 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1615 }
1616 #endif
1617
1618 #ifdef THOMAS_BEACON
1619 {
1620 long align = 0;
1621 void *oldaddr, *newaddr;
1622
1623 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1624 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1625 if (!priv->oldaddr)
1626 return -ENOMEM;
1627 oldaddr = priv->oldaddr;
1628 align = ((long)oldaddr) & 3;
1629 if (align) {
1630 newaddr = oldaddr + 4 - align;
1631 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1632 } else {
1633 newaddr = oldaddr;
1634 priv->rx_urb[16]->transfer_buffer_length = 16;
1635 }
1636 priv->rx_urb[16]->transfer_buffer = newaddr;
1637 }
1638 #endif
1639
1640 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1641 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1642 GFP_KERNEL);
1643 if (!priv->pp_rxskb) {
1644 kfree(priv->rx_urb);
1645
1646 priv->pp_rxskb = NULL;
1647 priv->rx_urb = NULL;
1648
1649 DMESGE("Endpoint Alloc Failure");
1650 return -ENOMEM;
1651 }
1652
1653 netdev_dbg(dev, "End of initendpoints\n");
1654 return 0;
1655 }
1656
1657 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1658 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1659 {
1660 int i;
1661 struct r8192_priv *priv = ieee80211_priv(dev);
1662
1663 if (priv->rx_urb) {
1664 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1665 usb_kill_urb(priv->rx_urb[i]);
1666 usb_free_urb(priv->rx_urb[i]);
1667 }
1668 kfree(priv->rx_urb);
1669 priv->rx_urb = NULL;
1670 }
1671 kfree(priv->oldaddr);
1672 priv->oldaddr = NULL;
1673
1674 kfree(priv->pp_rxskb);
1675 priv->pp_rxskb = NULL;
1676 }
1677 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1678 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1679 {
1680 int i;
1681 struct r8192_priv *priv = ieee80211_priv(dev);
1682
1683 #ifndef JACKSON_NEW_RX
1684
1685 if (priv->rx_urb) {
1686 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1687 usb_kill_urb(priv->rx_urb[i]);
1688 kfree(priv->rx_urb[i]->transfer_buffer);
1689 usb_free_urb(priv->rx_urb[i]);
1690 }
1691 kfree(priv->rx_urb);
1692 priv->rx_urb = NULL;
1693 }
1694 #else
1695 kfree(priv->rx_urb);
1696 priv->rx_urb = NULL;
1697 kfree(priv->oldaddr);
1698 priv->oldaddr = NULL;
1699
1700 kfree(priv->pp_rxskb);
1701 priv->pp_rxskb = 0;
1702
1703 #endif
1704 }
1705 #endif
1706
1707 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1708 static void rtl8192_link_change(struct net_device *dev)
1709 {
1710 struct r8192_priv *priv = ieee80211_priv(dev);
1711 struct ieee80211_device *ieee = priv->ieee80211;
1712
1713 if (ieee->state == IEEE80211_LINKED) {
1714 rtl8192_net_update(dev);
1715 rtl8192_update_ratr_table(dev);
1716 /* Add this as in pure N mode, wep encryption will use software
1717 * way, but there is no chance to set this as wep will not set
1718 * group key in wext.
1719 */
1720 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1721 ieee->pairwise_key_type == KEY_TYPE_WEP104)
1722 EnableHWSecurityConfig8192(dev);
1723 }
1724 /*update timing params*/
1725 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1726 u32 reg = 0;
1727
1728 read_nic_dword(dev, RCR, ®);
1729 if (priv->ieee80211->state == IEEE80211_LINKED)
1730 priv->ReceiveConfig = reg |= RCR_CBSSID;
1731 else
1732 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1733 write_nic_dword(dev, RCR, reg);
1734 }
1735 }
1736
1737 static const struct ieee80211_qos_parameters def_qos_parameters = {
1738 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1739 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1740 {2, 2, 2, 2},/* aifs */
1741 {0, 0, 0, 0},/* flags */
1742 {0, 0, 0, 0} /* tx_op_limit */
1743 };
1744
1745
rtl8192_update_beacon(struct work_struct * work)1746 static void rtl8192_update_beacon(struct work_struct *work)
1747 {
1748 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1749 update_beacon_wq.work);
1750 struct net_device *dev = priv->ieee80211->dev;
1751 struct ieee80211_device *ieee = priv->ieee80211;
1752 struct ieee80211_network *net = &ieee->current_network;
1753
1754 if (ieee->pHTInfo->bCurrentHTSupport)
1755 HTUpdateSelfAndPeerSetting(ieee, net);
1756 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1757 net->bssht.bdRT2RTLongSlotTime;
1758 rtl8192_update_cap(dev, net->capability);
1759 }
1760
1761 /*
1762 * background support to run QoS activate functionality
1763 */
1764 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1765 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1766 static void rtl8192_qos_activate(struct work_struct *work)
1767 {
1768 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1769 qos_activate);
1770 struct net_device *dev = priv->ieee80211->dev;
1771 struct ieee80211_qos_parameters *qos_parameters =
1772 &priv->ieee80211->current_network.qos_data.parameters;
1773 u8 mode = priv->ieee80211->current_network.mode;
1774 u32 u1bAIFS;
1775 u32 u4bAcParam;
1776 u32 op_limit;
1777 u32 cw_max;
1778 u32 cw_min;
1779 int i;
1780
1781 mutex_lock(&priv->mutex);
1782 if (priv->ieee80211->state != IEEE80211_LINKED)
1783 goto success;
1784 RT_TRACE(COMP_QOS,
1785 "qos active process with associate response received\n");
1786 /* It better set slot time at first
1787 *
1788 * For we just support b/g mode at present, let the slot time at
1789 * 9/20 selection
1790 *
1791 * update the ac parameter to related registers
1792 */
1793 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1794 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1795 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1796 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1797 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1798 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1799 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1800 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1801 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1802 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1803 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1804 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1805 }
1806
1807 success:
1808 mutex_unlock(&priv->mutex);
1809 }
1810
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1811 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1812 int active_network,
1813 struct ieee80211_network *network)
1814 {
1815 int ret = 0;
1816 u32 size = sizeof(struct ieee80211_qos_parameters);
1817
1818 if (priv->ieee80211->state != IEEE80211_LINKED)
1819 return ret;
1820
1821 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1822 return ret;
1823
1824 if (network->flags & NETWORK_HAS_QOS_MASK) {
1825 if (active_network &&
1826 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1827 network->qos_data.active = network->qos_data.supported;
1828
1829 if ((network->qos_data.active == 1) && (active_network == 1) &&
1830 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1831 (network->qos_data.old_param_count !=
1832 network->qos_data.param_count)) {
1833 network->qos_data.old_param_count =
1834 network->qos_data.param_count;
1835 schedule_work(&priv->qos_activate);
1836 RT_TRACE(COMP_QOS,
1837 "QoS parameters change call qos_activate\n");
1838 }
1839 } else {
1840 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1841 &def_qos_parameters, size);
1842
1843 if ((network->qos_data.active == 1) && (active_network == 1)) {
1844 schedule_work(&priv->qos_activate);
1845 RT_TRACE(COMP_QOS,
1846 "QoS was disabled call qos_activate\n");
1847 }
1848 network->qos_data.active = 0;
1849 network->qos_data.supported = 0;
1850 }
1851
1852 return 0;
1853 }
1854
1855 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1856 static int rtl8192_handle_beacon(struct net_device *dev,
1857 struct ieee80211_beacon *beacon,
1858 struct ieee80211_network *network)
1859 {
1860 struct r8192_priv *priv = ieee80211_priv(dev);
1861
1862 rtl8192_qos_handle_probe_response(priv, 1, network);
1863 schedule_delayed_work(&priv->update_beacon_wq, 0);
1864 return 0;
1865 }
1866
1867 /*
1868 * handling the beaconing responses. if we get different QoS setting
1869 * off the network from the associated setting, adjust the QoS
1870 * setting
1871 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1872 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1873 struct ieee80211_network *network)
1874 {
1875 unsigned long flags;
1876 u32 size = sizeof(struct ieee80211_qos_parameters);
1877 int set_qos_param = 0;
1878
1879 if (!priv || !network)
1880 return 0;
1881
1882 if (priv->ieee80211->state != IEEE80211_LINKED)
1883 return 0;
1884
1885 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1886 return 0;
1887
1888 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1889 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1890 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1891 &network->qos_data.parameters,
1892 sizeof(struct ieee80211_qos_parameters));
1893 priv->ieee80211->current_network.qos_data.active = 1;
1894 set_qos_param = 1;
1895 /* update qos parameter for current network */
1896 priv->ieee80211->current_network.qos_data.old_param_count =
1897 priv->ieee80211->current_network.qos_data.param_count;
1898 priv->ieee80211->current_network.qos_data.param_count =
1899 network->qos_data.param_count;
1900 } else {
1901 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1902 &def_qos_parameters, size);
1903 priv->ieee80211->current_network.qos_data.active = 0;
1904 priv->ieee80211->current_network.qos_data.supported = 0;
1905 set_qos_param = 1;
1906 }
1907
1908 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1909
1910 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1911 network->flags,
1912 priv->ieee80211->current_network.qos_data.active);
1913 if (set_qos_param == 1)
1914 schedule_work(&priv->qos_activate);
1915
1916
1917 return 0;
1918 }
1919
1920
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)1921 static int rtl8192_handle_assoc_response(
1922 struct net_device *dev,
1923 struct ieee80211_assoc_response_frame *resp,
1924 struct ieee80211_network *network)
1925 {
1926 struct r8192_priv *priv = ieee80211_priv(dev);
1927
1928 rtl8192_qos_association_resp(priv, network);
1929 return 0;
1930 }
1931
1932
rtl8192_update_ratr_table(struct net_device * dev)1933 static void rtl8192_update_ratr_table(struct net_device *dev)
1934 {
1935 struct r8192_priv *priv = ieee80211_priv(dev);
1936 struct ieee80211_device *ieee = priv->ieee80211;
1937 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
1938 u32 ratr_value = 0;
1939 u8 rate_index = 0;
1940
1941 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
1942 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
1943 switch (ieee->mode) {
1944 case IEEE_A:
1945 ratr_value &= 0x00000FF0;
1946 break;
1947 case IEEE_B:
1948 ratr_value &= 0x0000000F;
1949 break;
1950 case IEEE_G:
1951 ratr_value &= 0x00000FF7;
1952 break;
1953 case IEEE_N_24G:
1954 case IEEE_N_5G:
1955 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) {
1956 ratr_value &= 0x0007F007;
1957 } else {
1958 if (priv->rf_type == RF_1T2R)
1959 ratr_value &= 0x000FF007;
1960 else
1961 ratr_value &= 0x0F81F007;
1962 }
1963 break;
1964 default:
1965 break;
1966 }
1967 ratr_value &= 0x0FFFFFFF;
1968 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
1969 ratr_value |= 0x80000000;
1970 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
1971 ieee->pHTInfo->bCurShortGI20MHz)
1972 ratr_value |= 0x80000000;
1973 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
1974 write_nic_byte(dev, UFWP, 1);
1975 }
1976
1977 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
1978 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)1979 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
1980 {
1981 struct r8192_priv *priv = ieee80211_priv(dev);
1982 struct ieee80211_device *ieee = priv->ieee80211;
1983 struct ieee80211_network *network = &ieee->current_network;
1984 int wpa_ie_len = ieee->wpa_ie_len;
1985 struct ieee80211_crypt_data *crypt;
1986 int encrypt;
1987
1988 crypt = ieee->crypt[ieee->tx_keyidx];
1989 /* we use connecting AP's capability instead of only security config
1990 * on our driver to distinguish whether it should use N mode or G mode
1991 */
1992 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
1993 (ieee->host_encrypt && crypt && crypt->ops &&
1994 (strcmp(crypt->ops->name, "WEP") == 0));
1995
1996 /* simply judge */
1997 if (encrypt && (wpa_ie_len == 0)) {
1998 /* wep encryption, no N mode setting */
1999 return false;
2000 } else if ((wpa_ie_len != 0)) {
2001 /* parse pairwise key type */
2002 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))))
2003 return true;
2004 else
2005 return false;
2006 } else {
2007 return true;
2008 }
2009
2010 return true;
2011 }
2012
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)2013 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2014 {
2015 struct r8192_priv *priv = ieee80211_priv(dev);
2016
2017 return priv->ieee80211->bHalfWirelessN24GMode;
2018 }
2019
rtl8192_refresh_supportrate(struct r8192_priv * priv)2020 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2021 {
2022 struct ieee80211_device *ieee = priv->ieee80211;
2023 /* We do not consider set support rate for ABG mode, only
2024 * HT MCS rate is set here.
2025 */
2026 if (ieee->mode == WIRELESS_MODE_N_24G ||
2027 ieee->mode == WIRELESS_MODE_N_5G)
2028 memcpy(ieee->Regdot11HTOperationalRateSet,
2029 ieee->RegHTSuppRateSet, 16);
2030 else
2031 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2032 }
2033
rtl8192_getSupportedWireleeMode(struct net_device * dev)2034 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2035 {
2036 struct r8192_priv *priv = ieee80211_priv(dev);
2037 u8 ret = 0;
2038
2039 switch (priv->rf_chip) {
2040 case RF_8225:
2041 case RF_8256:
2042 case RF_PSEUDO_11N:
2043 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2044 break;
2045 case RF_8258:
2046 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2047 break;
2048 default:
2049 ret = WIRELESS_MODE_B;
2050 break;
2051 }
2052 return ret;
2053 }
2054
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2055 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2056 {
2057 struct r8192_priv *priv = ieee80211_priv(dev);
2058 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2059
2060 if (wireless_mode == WIRELESS_MODE_AUTO ||
2061 (wireless_mode & bSupportMode) == 0) {
2062 if (bSupportMode & WIRELESS_MODE_N_24G) {
2063 wireless_mode = WIRELESS_MODE_N_24G;
2064 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2065 wireless_mode = WIRELESS_MODE_N_5G;
2066 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2067 wireless_mode = WIRELESS_MODE_A;
2068 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2069 wireless_mode = WIRELESS_MODE_G;
2070 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2071 wireless_mode = WIRELESS_MODE_B;
2072 } else {
2073 RT_TRACE(COMP_ERR,
2074 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2075 __func__, bSupportMode);
2076 wireless_mode = WIRELESS_MODE_B;
2077 }
2078 }
2079 priv->ieee80211->mode = wireless_mode;
2080
2081 if (wireless_mode == WIRELESS_MODE_N_24G ||
2082 wireless_mode == WIRELESS_MODE_N_5G)
2083 priv->ieee80211->pHTInfo->bEnableHT = 1;
2084 else
2085 priv->ieee80211->pHTInfo->bEnableHT = 0;
2086 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2087 rtl8192_refresh_supportrate(priv);
2088 }
2089
2090 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2091 static int rtl8192_init_priv_variable(struct net_device *dev)
2092 {
2093 struct r8192_priv *priv = ieee80211_priv(dev);
2094 u8 i;
2095
2096 priv->card_8192 = NIC_8192U;
2097 priv->chan = 1; /* set to channel 1 */
2098 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2099 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2100 priv->ieee80211->ieee_up = 0;
2101 priv->retry_rts = DEFAULT_RETRY_RTS;
2102 priv->retry_data = DEFAULT_RETRY_DATA;
2103 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2104 priv->ieee80211->rate = 110; /* 11 mbps */
2105 priv->ieee80211->short_slot = 1;
2106 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2107 priv->CckPwEnl = 6;
2108 /* for silent reset */
2109 priv->IrpPendingCount = 1;
2110 priv->ResetProgress = RESET_TYPE_NORESET;
2111 priv->bForcedSilentReset = false;
2112 priv->bDisableNormalResetCheck = false;
2113 priv->force_reset = false;
2114
2115 /* we don't use FW read/write RF until stable firmware is available. */
2116 priv->ieee80211->FwRWRF = 0;
2117 priv->ieee80211->current_network.beacon_interval =
2118 DEFAULT_BEACONINTERVAL;
2119 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2120 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2121 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2122 IEEE_SOFTMAC_BEACONS;
2123
2124 priv->ieee80211->active_scan = 1;
2125 priv->ieee80211->modulation =
2126 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2127 priv->ieee80211->host_encrypt = 1;
2128 priv->ieee80211->host_decrypt = 1;
2129 priv->ieee80211->start_send_beacons = NULL;
2130 priv->ieee80211->stop_send_beacons = NULL;
2131 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2132 priv->ieee80211->set_chan = rtl8192_set_chan;
2133 priv->ieee80211->link_change = rtl8192_link_change;
2134 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2135 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2136 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2137 priv->ieee80211->init_wmmparam_flag = 0;
2138 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2139 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2140 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2141 priv->ieee80211->qos_support = 1;
2142
2143 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2144 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2145 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2146
2147 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2148 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2149 GetHalfNmodeSupportByAPs819xUsb;
2150 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2151
2152 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2153 priv->card_type = USB;
2154 priv->ShortRetryLimit = 0x30;
2155 priv->LongRetryLimit = 0x30;
2156 priv->EarlyRxThreshold = 7;
2157 priv->enable_gpio0 = 0;
2158 priv->TransmitConfig =
2159 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2160 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2161 /* Short retry limit */
2162 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2163 /* Long retry limit */
2164 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2165 /* FALSE: HW provides PLCP length and LENGEXT
2166 * TRUE: SW provides them
2167 */
2168 (false ? TCR_SAT : 0);
2169 priv->ReceiveConfig =
2170 /* accept management/data */
2171 RCR_AMF | RCR_ADF |
2172 /* accept control frame for SW AP needs PS-poll */
2173 RCR_ACF |
2174 /* accept BC/MC/UC */
2175 RCR_AB | RCR_AM | RCR_APM |
2176 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2177 ((u32)7 << RCR_MXDMA_OFFSET) |
2178 /* Rx FIFO Threshold, 7: No Rx threshold. */
2179 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2180 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2181
2182 priv->AcmControl = 0;
2183 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2184 if (!priv->pFirmware)
2185 return -ENOMEM;
2186
2187 /* rx related queue */
2188 skb_queue_head_init(&priv->rx_queue);
2189 skb_queue_head_init(&priv->skb_queue);
2190
2191 /* Tx related queue */
2192 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2193 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2194 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2195 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2196 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2197 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2198 priv->rf_set_chan = rtl8192_phy_SwChnl;
2199
2200 return 0;
2201 }
2202
2203 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2204 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2205 {
2206 spin_lock_init(&priv->tx_lock);
2207 spin_lock_init(&priv->irq_lock);
2208 mutex_init(&priv->wx_mutex);
2209 mutex_init(&priv->mutex);
2210 }
2211
2212 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2213
2214 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2215 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2216 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2217 static void rtl8192_init_priv_task(struct net_device *dev)
2218 {
2219 struct r8192_priv *priv = ieee80211_priv(dev);
2220
2221
2222 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2223
2224 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2225 rtl819x_watchdog_wqcallback);
2226 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2227 dm_txpower_trackingcallback);
2228 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2229 dm_rf_pathcheck_workitemcallback);
2230 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2231 rtl8192_update_beacon);
2232 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2233 InitialGainOperateWorkItemCallBack);
2234 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2235
2236 tasklet_init(&priv->irq_rx_tasklet,
2237 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2238 (unsigned long)priv);
2239 }
2240
rtl8192_get_eeprom_size(struct net_device * dev)2241 static void rtl8192_get_eeprom_size(struct net_device *dev)
2242 {
2243 u16 curCR = 0;
2244 struct r8192_priv *priv = ieee80211_priv(dev);
2245
2246 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2247 read_nic_word_E(dev, EPROM_CMD, &curCR);
2248 RT_TRACE(COMP_EPROM,
2249 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2250 /* whether need I consider BIT(5?) */
2251 priv->epromtype =
2252 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2253 RT_TRACE(COMP_EPROM,
2254 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2255 }
2256
2257 /* used to swap endian. as ntohl & htonl are not necessary
2258 * to swap endian, so use this instead.
2259 */
endian_swap(u16 * data)2260 static inline u16 endian_swap(u16 *data)
2261 {
2262 u16 tmp = *data;
2263 *data = (tmp >> 8) | (tmp << 8);
2264 return *data;
2265 }
2266
rtl8192_read_eeprom_info(struct net_device * dev)2267 static int rtl8192_read_eeprom_info(struct net_device *dev)
2268 {
2269 u16 wEPROM_ID = 0;
2270 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2271 u8 bLoad_From_EEPOM = false;
2272 struct r8192_priv *priv = ieee80211_priv(dev);
2273 u16 tmpValue = 0;
2274 int i;
2275 int ret;
2276
2277 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2278 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2279 if (ret < 0)
2280 return ret;
2281 wEPROM_ID = (u16)ret;
2282 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2283
2284 if (wEPROM_ID != RTL8190_EEPROM_ID)
2285 RT_TRACE(COMP_ERR,
2286 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2287 wEPROM_ID, RTL8190_EEPROM_ID);
2288 else
2289 bLoad_From_EEPOM = true;
2290
2291 if (bLoad_From_EEPOM) {
2292 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2293 ret = eprom_read(dev, EEPROM_VID >> 1);
2294 if (ret < 0)
2295 return ret;
2296 tmpValue = (u16)ret;
2297 priv->eeprom_vid = endian_swap(&tmpValue);
2298 ret = eprom_read(dev, EEPROM_PID >> 1);
2299 if (ret < 0)
2300 return ret;
2301 priv->eeprom_pid = (u16)ret;
2302 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1);
2303 if (ret < 0)
2304 return ret;
2305 tmpValue = (u16)ret;
2306 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2307 priv->btxpowerdata_readfromEEPORM = true;
2308 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8;
2309 if (ret < 0)
2310 return ret;
2311 priv->eeprom_CustomerID = (u16)ret;
2312 } else {
2313 priv->eeprom_vid = 0;
2314 priv->eeprom_pid = 0;
2315 priv->card_8192_version = VERSION_819XU_B;
2316 priv->eeprom_ChannelPlan = 0;
2317 priv->eeprom_CustomerID = 0;
2318 }
2319 RT_TRACE(COMP_EPROM,
2320 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2321 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2322 priv->eeprom_ChannelPlan);
2323 /* set channelplan from eeprom */
2324 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2325 if (bLoad_From_EEPOM) {
2326 int i;
2327
2328 for (i = 0; i < 6; i += 2) {
2329 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2330 if (ret < 0)
2331 return ret;
2332 *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2333 }
2334 } else {
2335 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2336 /* should I set IDR0 here? */
2337 }
2338 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2339 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2340 priv->rf_chip = RF_8256;
2341
2342 if (priv->card_8192_version == VERSION_819XU_A) {
2343 /* read Tx power gain offset of legacy OFDM to HT rate */
2344 if (bLoad_From_EEPOM) {
2345 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1));
2346 if (ret < 0)
2347 return ret;
2348 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2349 } else
2350 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER;
2351 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2352 /* read ThermalMeter from EEPROM */
2353 if (bLoad_From_EEPOM) {
2354 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1));
2355 if (ret < 0)
2356 return ret;
2357 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2358 } else
2359 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER;
2360 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2361 /* for tx power track */
2362 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2363 /* read antenna tx power offset of B/C/D to A from EEPROM */
2364 if (bLoad_From_EEPOM) {
2365 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1));
2366 if (ret < 0)
2367 return ret;
2368 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2369 } else
2370 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF;
2371 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2372 /* Read CrystalCap from EEPROM */
2373 if (bLoad_From_EEPOM) {
2374 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1));
2375 if (ret < 0)
2376 return ret;
2377 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2378 } else
2379 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP;
2380 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2381 /* get per-channel Tx power level */
2382 if (bLoad_From_EEPOM) {
2383 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1));
2384 if (ret < 0)
2385 return ret;
2386 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2387 } else
2388 priv->EEPROM_Def_Ver = 1;
2389 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2390 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2391 int i;
2392
2393 if (bLoad_From_EEPOM) {
2394 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1));
2395 if (ret < 0)
2396 return ret;
2397 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8;
2398 } else
2399 priv->EEPROMTxPowerLevelCCK = 0x10;
2400 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2401 for (i = 0; i < 3; i++) {
2402 if (bLoad_From_EEPOM) {
2403 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1);
2404 if (ret < 0)
2405 return ret;
2406 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0)
2407 tmpValue = (u16)ret & 0x00ff;
2408 else
2409 tmpValue = ((u16)ret & 0xff00) >> 8;
2410 } else {
2411 tmpValue = 0x10;
2412 }
2413 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2414 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2415 }
2416 } else if (priv->EEPROM_Def_Ver == 1) {
2417 if (bLoad_From_EEPOM) {
2418 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1);
2419 if (ret < 0)
2420 return ret;
2421 tmpValue = ((u16)ret & 0xff00) >> 8;
2422 } else {
2423 tmpValue = 0x10;
2424 }
2425 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2426
2427 if (bLoad_From_EEPOM) {
2428 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1);
2429 if (ret < 0)
2430 return ret;
2431 tmpValue = (u16)ret;
2432 } else
2433 tmpValue = 0x1010;
2434 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2435 if (bLoad_From_EEPOM)
2436 tmpValue = eprom_read(dev,
2437 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1);
2438 else
2439 tmpValue = 0x1010;
2440 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2441 if (bLoad_From_EEPOM)
2442 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1);
2443 else
2444 tmpValue = 0x10;
2445 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2446 } /* endif EEPROM_Def_Ver == 1 */
2447
2448 /* update HAL variables */
2449 for (i = 0; i < 14; i++) {
2450 if (i <= 3)
2451 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2452 else if (i >= 4 && i <= 9)
2453 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2454 else
2455 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2456 }
2457
2458 for (i = 0; i < 14; i++) {
2459 if (priv->EEPROM_Def_Ver == 0) {
2460 if (i <= 3)
2461 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2462 else if (i >= 4 && i <= 9)
2463 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2464 else
2465 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2466 } else if (priv->EEPROM_Def_Ver == 1) {
2467 if (i <= 3)
2468 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2469 else if (i >= 4 && i <= 9)
2470 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2471 else
2472 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2473 }
2474 }
2475 priv->TxPowerDiff = priv->EEPROMPwDiff;
2476 /* Antenna B gain offset to antenna A, bit0~3 */
2477 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2478 /* Antenna C gain offset to antenna A, bit4~7 */
2479 priv->AntennaTxPwDiff[1] =
2480 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2481 /* CrystalCap, bit12~15 */
2482 priv->CrystalCap = priv->EEPROMCrystalCap;
2483 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2484 * 92U does not enable TX power tracking.
2485 */
2486 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2487 } /* end if VersionID == VERSION_819XU_A */
2488
2489 /* for dlink led */
2490 switch (priv->eeprom_CustomerID) {
2491 case EEPROM_CID_RUNTOP:
2492 priv->CustomerID = RT_CID_819x_RUNTOP;
2493 break;
2494
2495 case EEPROM_CID_DLINK:
2496 priv->CustomerID = RT_CID_DLINK;
2497 break;
2498
2499 default:
2500 priv->CustomerID = RT_CID_DEFAULT;
2501 break;
2502 }
2503
2504 switch (priv->CustomerID) {
2505 case RT_CID_819x_RUNTOP:
2506 priv->LedStrategy = SW_LED_MODE2;
2507 break;
2508
2509 case RT_CID_DLINK:
2510 priv->LedStrategy = SW_LED_MODE4;
2511 break;
2512
2513 default:
2514 priv->LedStrategy = SW_LED_MODE0;
2515 break;
2516 }
2517
2518
2519 if (priv->rf_type == RF_1T2R)
2520 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2521 else
2522 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2523
2524 /* We can only know RF type in the function. So we have to init
2525 * DIG RATR table again.
2526 */
2527 init_rate_adaptive(dev);
2528
2529 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2530
2531 return 0;
2532 }
2533
rtl8192_get_channel_map(struct net_device * dev)2534 static short rtl8192_get_channel_map(struct net_device *dev)
2535 {
2536 struct r8192_priv *priv = ieee80211_priv(dev);
2537
2538 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2539 netdev_err(dev,
2540 "rtl8180_init: Error channel plan! Set to default.\n");
2541 priv->ChannelPlan = 0;
2542 }
2543 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2544
2545 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2546 return 0;
2547 }
2548
rtl8192_init(struct net_device * dev)2549 static short rtl8192_init(struct net_device *dev)
2550 {
2551 struct r8192_priv *priv = ieee80211_priv(dev);
2552 int err;
2553
2554 memset(&(priv->stats), 0, sizeof(struct Stats));
2555 memset(priv->txqueue_to_outpipemap, 0, 9);
2556 #ifdef PIPE12
2557 {
2558 int i = 0;
2559 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2560
2561 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2562 }
2563 #else
2564 {
2565 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2566
2567 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2568 }
2569 #endif
2570 err = rtl8192_init_priv_variable(dev);
2571 if (err)
2572 return err;
2573
2574 rtl8192_init_priv_lock(priv);
2575 rtl8192_init_priv_task(dev);
2576 rtl8192_get_eeprom_size(dev);
2577 err = rtl8192_read_eeprom_info(dev);
2578 if (err) {
2579 DMESG("Reading EEPROM info failed");
2580 return err;
2581 }
2582 rtl8192_get_channel_map(dev);
2583 init_hal_dm(dev);
2584 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
2585 if (rtl8192_usb_initendpoints(dev) != 0) {
2586 DMESG("Endopoints initialization failed");
2587 return -ENOMEM;
2588 }
2589
2590 return 0;
2591 }
2592
2593 /******************************************************************************
2594 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2595 * not to do all the hw config as its name says
2596 * input: net_device dev
2597 * output: none
2598 * return: none
2599 * notice: This part need to modified according to the rate set we filtered
2600 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2601 static void rtl8192_hwconfig(struct net_device *dev)
2602 {
2603 u32 regRATR = 0, regRRSR = 0;
2604 u8 regBwOpMode = 0, regTmp = 0;
2605 struct r8192_priv *priv = ieee80211_priv(dev);
2606 u32 ratr_value = 0;
2607
2608 /* Set RRSR, RATR, and BW_OPMODE registers */
2609 switch (priv->ieee80211->mode) {
2610 case WIRELESS_MODE_B:
2611 regBwOpMode = BW_OPMODE_20MHZ;
2612 regRATR = RATE_ALL_CCK;
2613 regRRSR = RATE_ALL_CCK;
2614 break;
2615 case WIRELESS_MODE_A:
2616 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2617 regRATR = RATE_ALL_OFDM_AG;
2618 regRRSR = RATE_ALL_OFDM_AG;
2619 break;
2620 case WIRELESS_MODE_G:
2621 regBwOpMode = BW_OPMODE_20MHZ;
2622 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2623 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2624 break;
2625 case WIRELESS_MODE_AUTO:
2626 regBwOpMode = BW_OPMODE_20MHZ;
2627 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2628 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2629 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2630 break;
2631 case WIRELESS_MODE_N_24G:
2632 /* It support CCK rate by default. CCK rate will be filtered
2633 * out only when associated AP does not support it.
2634 */
2635 regBwOpMode = BW_OPMODE_20MHZ;
2636 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2637 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2638 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2639 break;
2640 case WIRELESS_MODE_N_5G:
2641 regBwOpMode = BW_OPMODE_5G;
2642 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2643 RATE_ALL_OFDM_2SS;
2644 regRRSR = RATE_ALL_OFDM_AG;
2645 break;
2646 }
2647
2648 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2649 ratr_value = regRATR;
2650 if (priv->rf_type == RF_1T2R)
2651 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2652 write_nic_dword(dev, RATR0, ratr_value);
2653 write_nic_byte(dev, UFWP, 1);
2654 read_nic_byte(dev, 0x313, ®Tmp);
2655 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2656 write_nic_dword(dev, RRSR, regRRSR);
2657
2658 /* Set Retry Limit here */
2659 write_nic_word(dev, RETRY_LIMIT,
2660 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2661 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2662 /* Set Contention Window here */
2663
2664 /* Set Tx AGC */
2665
2666 /* Set Tx Antenna including Feedback control */
2667
2668 /* Set Auto Rate fallback control */
2669 }
2670
2671
2672 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2673 static bool rtl8192_adapter_start(struct net_device *dev)
2674 {
2675 struct r8192_priv *priv = ieee80211_priv(dev);
2676 u32 dwRegRead = 0;
2677 bool init_status = true;
2678 u8 SECR_value = 0x0;
2679 u8 tmp;
2680
2681 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2682 priv->Rf_Mode = RF_OP_By_SW_3wire;
2683 /* for ASIC power on sequence */
2684 write_nic_byte_E(dev, 0x5f, 0x80);
2685 mdelay(50);
2686 write_nic_byte_E(dev, 0x5f, 0xf0);
2687 write_nic_byte_E(dev, 0x5d, 0x00);
2688 write_nic_byte_E(dev, 0x5e, 0x80);
2689 write_nic_byte(dev, 0x17, 0x37);
2690 mdelay(10);
2691 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2692 /* config CPUReset Register */
2693 /* Firmware Reset or not? */
2694 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2695 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2696 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2697 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2698 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2699 else
2700 RT_TRACE(COMP_ERR,
2701 "ERROR in %s(): undefined firmware state(%d)\n",
2702 __func__, priv->pFirmware->firmware_status);
2703
2704 write_nic_dword(dev, CPU_GEN, dwRegRead);
2705 /* config BB. */
2706 rtl8192_BBConfig(dev);
2707
2708 /* Loopback mode or not */
2709 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2710
2711 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2712 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2713 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2714 CPU_GEN_NO_LOOPBACK_SET;
2715 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2716 dwRegRead |= CPU_CCK_LOOPBACK;
2717 else
2718 RT_TRACE(COMP_ERR,
2719 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2720 __func__, priv->LoopbackMode);
2721
2722 write_nic_dword(dev, CPU_GEN, dwRegRead);
2723
2724 /* after reset cpu, we need wait for a seconds to write in register. */
2725 udelay(500);
2726
2727 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2728 read_nic_byte_E(dev, 0x5f, &tmp);
2729 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2730
2731 /* Set Hardware */
2732 rtl8192_hwconfig(dev);
2733
2734 /* turn on Tx/Rx */
2735 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2736
2737 /* set IDR0 here */
2738 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2739 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2740
2741 /* set RCR */
2742 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2743
2744 /* Initialize Number of Reserved Pages in Firmware Queue */
2745 write_nic_dword(dev, RQPN1,
2746 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2747 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2748 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2749 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2750 write_nic_dword(dev, RQPN2,
2751 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2752 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2753 write_nic_dword(dev, RQPN3,
2754 APPLIED_RESERVED_QUEUE_IN_FW |
2755 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2756 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2757
2758 /* Set AckTimeout */
2759 /* TODO: (it value is only for FPGA version). need to be changed!! */
2760 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2761
2762 if (priv->ResetProgress == RESET_TYPE_NORESET)
2763 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2764 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2765 CamResetAllEntry(dev);
2766 SECR_value |= SCR_TxEncEnable;
2767 SECR_value |= SCR_RxDecEnable;
2768 SECR_value |= SCR_NoSKMC;
2769 write_nic_byte(dev, SECR, SECR_value);
2770 }
2771
2772 /* Beacon related */
2773 write_nic_word(dev, ATIMWND, 2);
2774 write_nic_word(dev, BCN_INTERVAL, 100);
2775
2776 #define DEFAULT_EDCA 0x005e4332
2777 {
2778 int i;
2779
2780 for (i = 0; i < QOS_QUEUE_NUM; i++)
2781 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2782 }
2783
2784 rtl8192_phy_configmac(dev);
2785
2786 if (priv->card_8192_version == VERSION_819XU_A) {
2787 rtl8192_phy_getTxPower(dev);
2788 rtl8192_phy_setTxPower(dev, priv->chan);
2789 }
2790
2791 /* Firmware download */
2792 init_status = init_firmware(dev);
2793 if (!init_status) {
2794 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2795 __func__);
2796 return init_status;
2797 }
2798 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2799
2800 /* config RF. */
2801 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2802 rtl8192_phy_RFConfig(dev);
2803 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2804 }
2805
2806
2807 if (priv->ieee80211->FwRWRF)
2808 /* We can force firmware to do RF-R/W */
2809 priv->Rf_Mode = RF_OP_By_FW;
2810 else
2811 priv->Rf_Mode = RF_OP_By_SW_3wire;
2812
2813
2814 rtl8192_phy_updateInitGain(dev);
2815 /*--set CCK and OFDM Block "ON"--*/
2816 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2817 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2818
2819 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2820 /* if D or C cut */
2821 u8 tmpvalue;
2822
2823 read_nic_byte(dev, 0x301, &tmpvalue);
2824 if (tmpvalue == 0x03) {
2825 priv->bDcut = true;
2826 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2827 } else {
2828 priv->bDcut = false;
2829 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2830 }
2831 dm_initialize_txpower_tracking(dev);
2832
2833 if (priv->bDcut) {
2834 u32 i, TempCCk;
2835 u32 tmpRegA = rtl8192_QueryBBReg(dev,
2836 rOFDM0_XATxIQImbalance,
2837 bMaskDWord);
2838
2839 for (i = 0; i < TxBBGainTableLength; i++) {
2840 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2841 priv->rfa_txpowertrackingindex = (u8)i;
2842 priv->rfa_txpowertrackingindex_real =
2843 (u8)i;
2844 priv->rfa_txpowertracking_default =
2845 priv->rfa_txpowertrackingindex;
2846 break;
2847 }
2848 }
2849
2850 TempCCk = rtl8192_QueryBBReg(dev,
2851 rCCK0_TxFilter1,
2852 bMaskByte2);
2853
2854 for (i = 0; i < CCKTxBBGainTableLength; i++) {
2855 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2856 priv->cck_present_attenuation_20Mdefault = (u8)i;
2857 break;
2858 }
2859 }
2860 priv->cck_present_attenuation_40Mdefault = 0;
2861 priv->cck_present_attenuation_difference = 0;
2862 priv->cck_present_attenuation =
2863 priv->cck_present_attenuation_20Mdefault;
2864 }
2865 }
2866 write_nic_byte(dev, 0x87, 0x0);
2867
2868
2869 return init_status;
2870 }
2871
2872 /* this configures registers for beacon tx and enables it via
2873 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2874 * be used to stop beacon transmission
2875 */
2876 /***************************************************************************
2877 * -------------------------------NET STUFF---------------------------
2878 ***************************************************************************/
2879
rtl8192_stats(struct net_device * dev)2880 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
2881 {
2882 struct r8192_priv *priv = ieee80211_priv(dev);
2883
2884 return &priv->ieee80211->stats;
2885 }
2886
HalTxCheckStuck819xUsb(struct net_device * dev)2887 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
2888 {
2889 struct r8192_priv *priv = ieee80211_priv(dev);
2890 u16 RegTxCounter;
2891 bool bStuck = false;
2892
2893 read_nic_word(dev, 0x128, &RegTxCounter);
2894 RT_TRACE(COMP_RESET,
2895 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
2896 RegTxCounter, priv->TxCounter);
2897 if (priv->TxCounter == RegTxCounter)
2898 bStuck = true;
2899
2900 priv->TxCounter = RegTxCounter;
2901
2902 return bStuck;
2903 }
2904
2905 /*
2906 * <Assumption: RT_TX_SPINLOCK is acquired.>
2907 * First added: 2006.11.19 by emily
2908 */
TxCheckStuck(struct net_device * dev)2909 static RESET_TYPE TxCheckStuck(struct net_device *dev)
2910 {
2911 struct r8192_priv *priv = ieee80211_priv(dev);
2912 u8 QueueID;
2913 bool bCheckFwTxCnt = false;
2914
2915 /* Decide such threshold according to current power save mode */
2916
2917 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
2918 if (QueueID == TXCMD_QUEUE)
2919 continue;
2920 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
2921 continue;
2922
2923 bCheckFwTxCnt = true;
2924 }
2925 if (bCheckFwTxCnt) {
2926 if (HalTxCheckStuck819xUsb(dev)) {
2927 RT_TRACE(COMP_RESET,
2928 "%s: Fw indicates no Tx condition!\n",
2929 __func__);
2930 return RESET_TYPE_SILENT;
2931 }
2932 }
2933 return RESET_TYPE_NORESET;
2934 }
2935
HalRxCheckStuck819xUsb(struct net_device * dev)2936 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
2937 {
2938 u16 RegRxCounter;
2939 struct r8192_priv *priv = ieee80211_priv(dev);
2940 bool bStuck = false;
2941 static u8 rx_chk_cnt;
2942
2943 read_nic_word(dev, 0x130, &RegRxCounter);
2944 RT_TRACE(COMP_RESET,
2945 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
2946 RegRxCounter, priv->RxCounter);
2947 /* If rssi is small, we should check rx for long time because of bad rx.
2948 * or maybe it will continuous silent reset every 2 seconds.
2949 */
2950 rx_chk_cnt++;
2951 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) {
2952 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
2953 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) &&
2954 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) ||
2955 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) {
2956 if (rx_chk_cnt < 2)
2957 return bStuck;
2958
2959 rx_chk_cnt = 0;
2960 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) ||
2961 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) &&
2962 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) {
2963 if (rx_chk_cnt < 4)
2964 return bStuck;
2965
2966 rx_chk_cnt = 0;
2967 } else {
2968 if (rx_chk_cnt < 8)
2969 return bStuck;
2970
2971 rx_chk_cnt = 0;
2972 }
2973
2974 if (priv->RxCounter == RegRxCounter)
2975 bStuck = true;
2976
2977 priv->RxCounter = RegRxCounter;
2978
2979 return bStuck;
2980 }
2981
RxCheckStuck(struct net_device * dev)2982 static RESET_TYPE RxCheckStuck(struct net_device *dev)
2983 {
2984 struct r8192_priv *priv = ieee80211_priv(dev);
2985 bool bRxCheck = false;
2986
2987 if (priv->IrpPendingCount > 1)
2988 bRxCheck = true;
2989
2990 if (bRxCheck) {
2991 if (HalRxCheckStuck819xUsb(dev)) {
2992 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
2993 return RESET_TYPE_SILENT;
2994 }
2995 }
2996 return RESET_TYPE_NORESET;
2997 }
2998
2999
3000 /**
3001 * This function is called by Checkforhang to check whether we should
3002 * ask OS to reset driver
3003 *
3004 * \param pAdapter The adapter context for this miniport
3005 *
3006 * Note:NIC with USB interface sholud not call this function because we
3007 * cannot scan descriptor to judge whether there is tx stuck.
3008 * Note: This function may be required to be rewrite for Vista OS.
3009 * <<<Assumption: Tx spinlock has been acquired >>>
3010 *
3011 * 8185 and 8185b does not implement this function.
3012 */
rtl819x_ifcheck_resetornot(struct net_device * dev)3013 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3014 {
3015 struct r8192_priv *priv = ieee80211_priv(dev);
3016 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3017 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3018 RT_RF_POWER_STATE rfState;
3019
3020 rfState = priv->ieee80211->eRFPowerState;
3021
3022 TxResetType = TxCheckStuck(dev);
3023 if (rfState != eRfOff ||
3024 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3025 /* If driver is in the status of firmware download failure,
3026 * driver skips RF initialization and RF is in turned off
3027 * state. Driver should check whether Rx stuck and do silent
3028 * reset. And if driver is in firmware download failure status,
3029 * driver should initialize RF in the following silent reset
3030 * procedure
3031 *
3032 * Driver should not check RX stuck in IBSS mode because it is
3033 * required to set Check BSSID in order to send beacon,
3034 * however, if check BSSID is set, STA cannot hear any packet
3035 * at all.
3036 */
3037 RxResetType = RxCheckStuck(dev);
3038 }
3039 if (TxResetType == RESET_TYPE_NORMAL ||
3040 RxResetType == RESET_TYPE_NORMAL) {
3041 return RESET_TYPE_NORMAL;
3042 } else if (TxResetType == RESET_TYPE_SILENT ||
3043 RxResetType == RESET_TYPE_SILENT) {
3044 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3045 return RESET_TYPE_SILENT;
3046 } else {
3047 return RESET_TYPE_NORESET;
3048 }
3049 }
3050
3051 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3052 static int _rtl8192_up(struct net_device *dev);
3053 static int rtl8192_close(struct net_device *dev);
3054
3055
3056
CamRestoreAllEntry(struct net_device * dev)3057 static void CamRestoreAllEntry(struct net_device *dev)
3058 {
3059 u8 EntryId = 0;
3060 struct r8192_priv *priv = ieee80211_priv(dev);
3061 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3062
3063 static u8 CAM_CONST_ADDR[4][6] = {
3064 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3065 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3066 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3067 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3068 static u8 CAM_CONST_BROAD[] = {
3069 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3070
3071 RT_TRACE(COMP_SEC, "%s:\n", __func__);
3072
3073
3074 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3075 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3076 for (EntryId = 0; EntryId < 4; EntryId++) {
3077 MacAddr = CAM_CONST_ADDR[EntryId];
3078 setKey(dev, EntryId, EntryId,
3079 priv->ieee80211->pairwise_key_type,
3080 MacAddr, 0, NULL);
3081 }
3082
3083 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3084 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3085 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3086 (u8 *)dev->dev_addr, 0, NULL);
3087 else
3088 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3089 MacAddr, 0, NULL);
3090 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3091 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3092 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3093 (u8 *)dev->dev_addr, 0, NULL);
3094 else
3095 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3096 MacAddr, 0, NULL);
3097 }
3098
3099
3100
3101 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3102 MacAddr = CAM_CONST_BROAD;
3103 for (EntryId = 1; EntryId < 4; EntryId++) {
3104 setKey(dev, EntryId, EntryId,
3105 priv->ieee80211->group_key_type,
3106 MacAddr, 0, NULL);
3107 }
3108 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3109 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3110 CAM_CONST_ADDR[0], 0, NULL);
3111 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3112 MacAddr = CAM_CONST_BROAD;
3113 for (EntryId = 1; EntryId < 4; EntryId++) {
3114 setKey(dev, EntryId, EntryId,
3115 priv->ieee80211->group_key_type,
3116 MacAddr, 0, NULL);
3117 }
3118
3119 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3120 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3121 CAM_CONST_ADDR[0], 0, NULL);
3122 }
3123 }
3124
3125 /* This function is used to fix Tx/Rx stop bug temporarily.
3126 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3127 * The method checking Tx/Rx stuck of this function is supported by FW,
3128 * which reports Tx and Rx counter to register 0x128 and 0x130.
3129 */
rtl819x_ifsilentreset(struct net_device * dev)3130 static void rtl819x_ifsilentreset(struct net_device *dev)
3131 {
3132 struct r8192_priv *priv = ieee80211_priv(dev);
3133 u8 reset_times = 0;
3134 int reset_status = 0;
3135 struct ieee80211_device *ieee = priv->ieee80211;
3136
3137
3138 /* If we need to check CCK stop, please uncomment this line. */
3139 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3140
3141 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3142 RESET_START:
3143
3144 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3145
3146 /* Set the variable for reset. */
3147 priv->ResetProgress = RESET_TYPE_SILENT;
3148 mutex_lock(&priv->wx_mutex);
3149 if (priv->up == 0) {
3150 RT_TRACE(COMP_ERR,
3151 "%s():the driver is not up! return\n",
3152 __func__);
3153 mutex_unlock(&priv->wx_mutex);
3154 return;
3155 }
3156 priv->up = 0;
3157 RT_TRACE(COMP_RESET,
3158 "%s():======>start to down the driver\n",
3159 __func__);
3160
3161 rtl8192_rtx_disable(dev);
3162 rtl8192_cancel_deferred_work(priv);
3163 deinit_hal_dm(dev);
3164 del_timer_sync(&priv->watch_dog_timer);
3165
3166 ieee->sync_scan_hurryup = 1;
3167 if (ieee->state == IEEE80211_LINKED) {
3168 mutex_lock(&ieee->wx_mutex);
3169 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3170 ieee80211_stop_send_beacons(priv->ieee80211);
3171 del_timer_sync(&ieee->associate_timer);
3172 cancel_delayed_work(&ieee->associate_retry_wq);
3173 ieee80211_stop_scan(ieee);
3174 netif_carrier_off(dev);
3175 mutex_unlock(&ieee->wx_mutex);
3176 } else {
3177 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3178 ieee80211_softmac_stop_protocol(priv->ieee80211);
3179 }
3180 mutex_unlock(&priv->wx_mutex);
3181 RT_TRACE(COMP_RESET,
3182 "%s():<==========down process is finished\n",
3183 __func__);
3184 RT_TRACE(COMP_RESET,
3185 "%s():===========>start up the driver\n",
3186 __func__);
3187 reset_status = _rtl8192_up(dev);
3188
3189 RT_TRACE(COMP_RESET,
3190 "%s():<===========up process is finished\n",
3191 __func__);
3192 if (reset_status == -EAGAIN) {
3193 if (reset_times < 3) {
3194 reset_times++;
3195 goto RESET_START;
3196 } else {
3197 RT_TRACE(COMP_ERR,
3198 " ERR!!! %s(): Reset Failed!!\n",
3199 __func__);
3200 }
3201 }
3202 ieee->is_silent_reset = 1;
3203 EnableHWSecurityConfig8192(dev);
3204 if (ieee->state == IEEE80211_LINKED &&
3205 ieee->iw_mode == IW_MODE_INFRA) {
3206 ieee->set_chan(ieee->dev,
3207 ieee->current_network.channel);
3208
3209 queue_work(ieee->wq, &ieee->associate_complete_wq);
3210
3211 } else if (ieee->state == IEEE80211_LINKED &&
3212 ieee->iw_mode == IW_MODE_ADHOC) {
3213 ieee->set_chan(ieee->dev,
3214 ieee->current_network.channel);
3215 ieee->link_change(ieee->dev);
3216
3217 ieee80211_start_send_beacons(ieee);
3218
3219 if (ieee->data_hard_resume)
3220 ieee->data_hard_resume(ieee->dev);
3221 netif_carrier_on(ieee->dev);
3222 }
3223
3224 CamRestoreAllEntry(dev);
3225
3226 priv->ResetProgress = RESET_TYPE_NORESET;
3227 priv->reset_count++;
3228
3229 priv->bForcedSilentReset = false;
3230 priv->bResetInProgress = false;
3231
3232 /* For test --> force write UFWP. */
3233 write_nic_byte(dev, UFWP, 1);
3234 RT_TRACE(COMP_RESET,
3235 "Reset finished!! ====>[%d]\n",
3236 priv->reset_count);
3237 }
3238 }
3239
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3240 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3241 u32 *TotalRxDataNum)
3242 {
3243 u16 SlotIndex;
3244 u8 i;
3245
3246 *TotalRxBcnNum = 0;
3247 *TotalRxDataNum = 0;
3248
3249 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3250 (priv->ieee80211->LinkDetectInfo.SlotNum);
3251 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3252 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3253 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3254 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3255 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3256 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3257 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3258 }
3259 }
3260
3261
rtl819x_watchdog_wqcallback(struct work_struct * work)3262 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3263 {
3264 struct delayed_work *dwork = to_delayed_work(work);
3265 struct r8192_priv *priv = container_of(dwork,
3266 struct r8192_priv, watch_dog_wq);
3267 struct net_device *dev = priv->ieee80211->dev;
3268 struct ieee80211_device *ieee = priv->ieee80211;
3269 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3270 static u8 check_reset_cnt;
3271 bool bBusyTraffic = false;
3272 u32 TotalRxBcnNum = 0;
3273 u32 TotalRxDataNum = 0;
3274
3275 if (!priv->up)
3276 return;
3277 hal_dm_watchdog(dev);
3278
3279 /* to get busy traffic condition */
3280 if (ieee->state == IEEE80211_LINKED) {
3281 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3282 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3283 bBusyTraffic = true;
3284 }
3285 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3286 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3287 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3288 }
3289 /* for AP roaming */
3290 if (priv->ieee80211->state == IEEE80211_LINKED &&
3291 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3292 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3293 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3294 #ifdef TODO
3295 if (rfState == eRfOff)
3296 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3297 #endif
3298 netdev_dbg(dev,
3299 "===>%s(): AP is power off, connect another one\n",
3300 __func__);
3301 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3302 notify_wx_assoc_event(priv->ieee80211);
3303 RemovePeerTS(priv->ieee80211,
3304 priv->ieee80211->current_network.bssid);
3305 priv->ieee80211->link_change(dev);
3306 queue_work(priv->ieee80211->wq,
3307 &priv->ieee80211->associate_procedure_wq);
3308 }
3309 }
3310 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3311 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3312 /* check if reset the driver */
3313 if (check_reset_cnt++ >= 3) {
3314 ResetType = rtl819x_ifcheck_resetornot(dev);
3315 check_reset_cnt = 3;
3316 }
3317 /* This is control by OID set in Pomelo */
3318 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3319 (priv->bForcedSilentReset ||
3320 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3321 RT_TRACE(COMP_RESET,
3322 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3323 __func__, priv->force_reset, priv->ResetProgress,
3324 priv->bForcedSilentReset,
3325 priv->bDisableNormalResetCheck, ResetType);
3326 rtl819x_ifsilentreset(dev);
3327 }
3328 priv->force_reset = false;
3329 priv->bForcedSilentReset = false;
3330 priv->bResetInProgress = false;
3331 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3332 }
3333
watch_dog_timer_callback(struct timer_list * t)3334 static void watch_dog_timer_callback(struct timer_list *t)
3335 {
3336 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
3337
3338 schedule_delayed_work(&priv->watch_dog_wq, 0);
3339 mod_timer(&priv->watch_dog_timer,
3340 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3341 }
3342
_rtl8192_up(struct net_device * dev)3343 static int _rtl8192_up(struct net_device *dev)
3344 {
3345 struct r8192_priv *priv = ieee80211_priv(dev);
3346 int init_status = 0;
3347
3348 priv->up = 1;
3349 priv->ieee80211->ieee_up = 1;
3350 RT_TRACE(COMP_INIT, "Bringing up iface");
3351 init_status = rtl8192_adapter_start(dev);
3352 if (!init_status) {
3353 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3354 __func__);
3355 priv->up = priv->ieee80211->ieee_up = 0;
3356 return -EAGAIN;
3357 }
3358 RT_TRACE(COMP_INIT, "start adapter finished\n");
3359 rtl8192_rx_enable(dev);
3360 if (priv->ieee80211->state != IEEE80211_LINKED)
3361 ieee80211_softmac_start_protocol(priv->ieee80211);
3362 ieee80211_reset_queue(priv->ieee80211);
3363 watch_dog_timer_callback(&priv->watch_dog_timer);
3364 if (!netif_queue_stopped(dev))
3365 netif_start_queue(dev);
3366 else
3367 netif_wake_queue(dev);
3368
3369 return 0;
3370 }
3371
3372
rtl8192_open(struct net_device * dev)3373 static int rtl8192_open(struct net_device *dev)
3374 {
3375 struct r8192_priv *priv = ieee80211_priv(dev);
3376 int ret;
3377
3378 mutex_lock(&priv->wx_mutex);
3379 ret = rtl8192_up(dev);
3380 mutex_unlock(&priv->wx_mutex);
3381 return ret;
3382 }
3383
3384
rtl8192_up(struct net_device * dev)3385 int rtl8192_up(struct net_device *dev)
3386 {
3387 struct r8192_priv *priv = ieee80211_priv(dev);
3388
3389 if (priv->up == 1)
3390 return -1;
3391
3392 return _rtl8192_up(dev);
3393 }
3394
3395
rtl8192_close(struct net_device * dev)3396 static int rtl8192_close(struct net_device *dev)
3397 {
3398 struct r8192_priv *priv = ieee80211_priv(dev);
3399 int ret;
3400
3401 mutex_lock(&priv->wx_mutex);
3402
3403 ret = rtl8192_down(dev);
3404
3405 mutex_unlock(&priv->wx_mutex);
3406
3407 return ret;
3408 }
3409
rtl8192_down(struct net_device * dev)3410 int rtl8192_down(struct net_device *dev)
3411 {
3412 struct r8192_priv *priv = ieee80211_priv(dev);
3413 int i;
3414
3415 if (priv->up == 0)
3416 return -1;
3417
3418 priv->up = 0;
3419 priv->ieee80211->ieee_up = 0;
3420 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3421 /* FIXME */
3422 if (!netif_queue_stopped(dev))
3423 netif_stop_queue(dev);
3424
3425 rtl8192_rtx_disable(dev);
3426
3427 /* Tx related queue release */
3428 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3429 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3430 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3431 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3432
3433 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3434 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3435
3436 /* as cancel_delayed_work will del work->timer, so if work is not
3437 * defined as struct delayed_work, it will corrupt
3438 */
3439 rtl8192_cancel_deferred_work(priv);
3440 deinit_hal_dm(dev);
3441 del_timer_sync(&priv->watch_dog_timer);
3442
3443
3444 ieee80211_softmac_stop_protocol(priv->ieee80211);
3445 memset(&priv->ieee80211->current_network, 0,
3446 offsetof(struct ieee80211_network, list));
3447 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3448
3449 return 0;
3450 }
3451
3452
rtl8192_commit(struct net_device * dev)3453 void rtl8192_commit(struct net_device *dev)
3454 {
3455 struct r8192_priv *priv = ieee80211_priv(dev);
3456 int reset_status = 0;
3457
3458 if (priv->up == 0)
3459 return;
3460 priv->up = 0;
3461
3462 rtl8192_cancel_deferred_work(priv);
3463 del_timer_sync(&priv->watch_dog_timer);
3464
3465 ieee80211_softmac_stop_protocol(priv->ieee80211);
3466
3467 rtl8192_rtx_disable(dev);
3468 reset_status = _rtl8192_up(dev);
3469 }
3470
rtl8192_restart(struct work_struct * work)3471 static void rtl8192_restart(struct work_struct *work)
3472 {
3473 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3474 reset_wq);
3475 struct net_device *dev = priv->ieee80211->dev;
3476
3477 mutex_lock(&priv->wx_mutex);
3478
3479 rtl8192_commit(dev);
3480
3481 mutex_unlock(&priv->wx_mutex);
3482 }
3483
r8192_set_multicast(struct net_device * dev)3484 static void r8192_set_multicast(struct net_device *dev)
3485 {
3486 struct r8192_priv *priv = ieee80211_priv(dev);
3487 short promisc;
3488
3489 /* FIXME FIXME */
3490
3491 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3492
3493 if (promisc != priv->promisc)
3494
3495 priv->promisc = promisc;
3496 }
3497
3498
r8192_set_mac_adr(struct net_device * dev,void * mac)3499 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3500 {
3501 struct r8192_priv *priv = ieee80211_priv(dev);
3502 struct sockaddr *addr = mac;
3503
3504 mutex_lock(&priv->wx_mutex);
3505
3506 ether_addr_copy(dev->dev_addr, addr->sa_data);
3507
3508 schedule_work(&priv->reset_wq);
3509 mutex_unlock(&priv->wx_mutex);
3510
3511 return 0;
3512 }
3513
3514 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3515 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3516 {
3517 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3518 struct iwreq *wrq = (struct iwreq *)rq;
3519 int ret = -1;
3520 struct ieee80211_device *ieee = priv->ieee80211;
3521 u32 key[4];
3522 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3523 struct iw_point *p = &wrq->u.data;
3524 struct ieee_param *ipw = NULL;
3525
3526 mutex_lock(&priv->wx_mutex);
3527
3528
3529 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3530 ret = -EINVAL;
3531 goto out;
3532 }
3533
3534 ipw = memdup_user(p->pointer, p->length);
3535 if (IS_ERR(ipw)) {
3536 ret = PTR_ERR(ipw);
3537 goto out;
3538 }
3539
3540 switch (cmd) {
3541 case RTL_IOCTL_WPA_SUPPLICANT:
3542 /* parse here for HW security */
3543 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3544 if (ipw->u.crypt.set_tx) {
3545 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3546 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3547 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3548 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3549 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3550 if (ipw->u.crypt.key_len == 13)
3551 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3552 else if (ipw->u.crypt.key_len == 5)
3553 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3554 } else {
3555 ieee->pairwise_key_type = KEY_TYPE_NA;
3556 }
3557
3558 if (ieee->pairwise_key_type) {
3559 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3560 EnableHWSecurityConfig8192(dev);
3561 /* We fill both index entry and 4th
3562 * entry for pairwise key as in IPW
3563 * interface, adhoc will only get here,
3564 * so we need index entry for its
3565 * default key serching!
3566 */
3567 setKey(dev, 4, ipw->u.crypt.idx,
3568 ieee->pairwise_key_type,
3569 (u8 *)ieee->ap_mac_addr,
3570 0, key);
3571 if (ieee->auth_mode != 2)
3572 setKey(dev, ipw->u.crypt.idx,
3573 ipw->u.crypt.idx,
3574 ieee->pairwise_key_type,
3575 (u8 *)ieee->ap_mac_addr,
3576 0, key);
3577 }
3578 } else {
3579 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3580 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3581 ieee->group_key_type = KEY_TYPE_CCMP;
3582 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3583 ieee->group_key_type = KEY_TYPE_TKIP;
3584 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3585 if (ipw->u.crypt.key_len == 13)
3586 ieee->group_key_type = KEY_TYPE_WEP104;
3587 else if (ipw->u.crypt.key_len == 5)
3588 ieee->group_key_type = KEY_TYPE_WEP40;
3589 } else {
3590 ieee->group_key_type = KEY_TYPE_NA;
3591 }
3592
3593 if (ieee->group_key_type) {
3594 setKey(dev, ipw->u.crypt.idx,
3595 /* KeyIndex */
3596 ipw->u.crypt.idx,
3597 /* KeyType */
3598 ieee->group_key_type,
3599 /* MacAddr */
3600 broadcast_addr,
3601 /* DefaultKey */
3602 0,
3603 /* KeyContent */
3604 key);
3605 }
3606 }
3607 }
3608 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3609 &wrq->u.data);
3610 break;
3611
3612 default:
3613 ret = -EOPNOTSUPP;
3614 break;
3615 }
3616 kfree(ipw);
3617 ipw = NULL;
3618 out:
3619 mutex_unlock(&priv->wx_mutex);
3620 return ret;
3621 }
3622
HwRateToMRate90(bool bIsHT,u8 rate)3623 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3624 {
3625 u8 ret_rate = 0xff;
3626
3627 if (!bIsHT) {
3628 switch (rate) {
3629 case DESC90_RATE1M:
3630 ret_rate = MGN_1M;
3631 break;
3632 case DESC90_RATE2M:
3633 ret_rate = MGN_2M;
3634 break;
3635 case DESC90_RATE5_5M:
3636 ret_rate = MGN_5_5M;
3637 break;
3638 case DESC90_RATE11M:
3639 ret_rate = MGN_11M;
3640 break;
3641 case DESC90_RATE6M:
3642 ret_rate = MGN_6M;
3643 break;
3644 case DESC90_RATE9M:
3645 ret_rate = MGN_9M;
3646 break;
3647 case DESC90_RATE12M:
3648 ret_rate = MGN_12M;
3649 break;
3650 case DESC90_RATE18M:
3651 ret_rate = MGN_18M;
3652 break;
3653 case DESC90_RATE24M:
3654 ret_rate = MGN_24M;
3655 break;
3656 case DESC90_RATE36M:
3657 ret_rate = MGN_36M;
3658 break;
3659 case DESC90_RATE48M:
3660 ret_rate = MGN_48M;
3661 break;
3662 case DESC90_RATE54M:
3663 ret_rate = MGN_54M;
3664 break;
3665
3666 default:
3667 ret_rate = 0xff;
3668 RT_TRACE(COMP_RECV,
3669 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3670 __func__, rate, bIsHT);
3671 break;
3672 }
3673
3674 } else {
3675 switch (rate) {
3676 case DESC90_RATEMCS0:
3677 ret_rate = MGN_MCS0;
3678 break;
3679 case DESC90_RATEMCS1:
3680 ret_rate = MGN_MCS1;
3681 break;
3682 case DESC90_RATEMCS2:
3683 ret_rate = MGN_MCS2;
3684 break;
3685 case DESC90_RATEMCS3:
3686 ret_rate = MGN_MCS3;
3687 break;
3688 case DESC90_RATEMCS4:
3689 ret_rate = MGN_MCS4;
3690 break;
3691 case DESC90_RATEMCS5:
3692 ret_rate = MGN_MCS5;
3693 break;
3694 case DESC90_RATEMCS6:
3695 ret_rate = MGN_MCS6;
3696 break;
3697 case DESC90_RATEMCS7:
3698 ret_rate = MGN_MCS7;
3699 break;
3700 case DESC90_RATEMCS8:
3701 ret_rate = MGN_MCS8;
3702 break;
3703 case DESC90_RATEMCS9:
3704 ret_rate = MGN_MCS9;
3705 break;
3706 case DESC90_RATEMCS10:
3707 ret_rate = MGN_MCS10;
3708 break;
3709 case DESC90_RATEMCS11:
3710 ret_rate = MGN_MCS11;
3711 break;
3712 case DESC90_RATEMCS12:
3713 ret_rate = MGN_MCS12;
3714 break;
3715 case DESC90_RATEMCS13:
3716 ret_rate = MGN_MCS13;
3717 break;
3718 case DESC90_RATEMCS14:
3719 ret_rate = MGN_MCS14;
3720 break;
3721 case DESC90_RATEMCS15:
3722 ret_rate = MGN_MCS15;
3723 break;
3724 case DESC90_RATEMCS32:
3725 ret_rate = 0x80 | 0x20;
3726 break;
3727
3728 default:
3729 ret_rate = 0xff;
3730 RT_TRACE(COMP_RECV,
3731 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3732 __func__, rate, bIsHT);
3733 break;
3734 }
3735 }
3736
3737 return ret_rate;
3738 }
3739
3740 /**
3741 * Function: UpdateRxPktTimeStamp
3742 * Overview: Record the TSF time stamp when receiving a packet
3743 *
3744 * Input:
3745 * PADAPTER Adapter
3746 * PRT_RFD pRfd,
3747 *
3748 * Output:
3749 * PRT_RFD pRfd
3750 * (pRfd->Status.TimeStampHigh is updated)
3751 * (pRfd->Status.TimeStampLow is updated)
3752 * Return:
3753 * None
3754 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3755 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3756 struct ieee80211_rx_stats *stats)
3757 {
3758 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3759
3760 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3761 stats->mac_time[0] = priv->LastRxDescTSFLow;
3762 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3763 } else {
3764 priv->LastRxDescTSFLow = stats->mac_time[0];
3765 priv->LastRxDescTSFHigh = stats->mac_time[1];
3766 }
3767 }
3768
3769 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3770 static long rtl819x_translate_todbm(u8 signal_strength_index)
3771 {
3772 long signal_power; /* in dBm. */
3773
3774 /* Translate to dBm (x=0.5y-95). */
3775 signal_power = (long)((signal_strength_index + 1) >> 1);
3776 signal_power -= 95;
3777
3778 return signal_power;
3779 }
3780
3781
3782 /* We can not declare RSSI/EVM total value of sliding window to
3783 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3784 * value will be kept in memory or disk. Declare the value in the adaptor
3785 * and it will be reinitialized when returned from S3/S4.
3786 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3787 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3788 struct ieee80211_rx_stats *pprevious_stats,
3789 struct ieee80211_rx_stats *pcurrent_stats)
3790 {
3791 bool bcheck = false;
3792 u8 rfpath;
3793 u32 nspatial_stream, tmp_val;
3794 static u32 slide_rssi_index, slide_rssi_statistics;
3795 static u32 slide_evm_index, slide_evm_statistics;
3796 static u32 last_rssi, last_evm;
3797
3798 static u32 slide_beacon_adc_pwdb_index;
3799 static u32 slide_beacon_adc_pwdb_statistics;
3800 static u32 last_beacon_adc_pwdb;
3801
3802 struct rtl_80211_hdr_3addr *hdr;
3803 u16 sc;
3804 unsigned int seq;
3805
3806 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3807 sc = le16_to_cpu(hdr->seq_ctl);
3808 seq = WLAN_GET_SEQ_SEQ(sc);
3809 /* to record the sequence number */
3810 pcurrent_stats->Seq_Num = seq;
3811
3812 /* Check whether we should take the previous packet into accounting */
3813 if (!pprevious_stats->bIsAMPDU) {
3814 /* if previous packet is not aggregated packet */
3815 bcheck = true;
3816 }
3817
3818 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3819 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3820 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3821 priv->stats.slide_rssi_total -= last_rssi;
3822 }
3823 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3824
3825 priv->stats.slide_signal_strength[slide_rssi_index++] =
3826 pprevious_stats->SignalStrength;
3827 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3828 slide_rssi_index = 0;
3829
3830 /* <1> Showed on UI for user, in dbm */
3831 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3832 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3833 pcurrent_stats->rssi = priv->stats.signal_strength;
3834
3835 /* If the previous packet does not match the criteria, neglect it */
3836 if (!pprevious_stats->bPacketMatchBSSID) {
3837 if (!pprevious_stats->bToSelfBA)
3838 return;
3839 }
3840
3841 if (!bcheck)
3842 return;
3843
3844
3845 /* only rtl8190 supported
3846 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3847 */
3848
3849 /* Check RSSI */
3850 priv->stats.num_process_phyinfo++;
3851
3852 /* record the general signal strength to the sliding window. */
3853
3854
3855 /* <2> Showed on UI for engineering
3856 * hardware does not provide rssi information for each rf path in CCK
3857 */
3858 if (!pprevious_stats->bIsCCK &&
3859 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3860 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3861 if (!rtl8192_phy_CheckIsLegalRFPath(
3862 priv->ieee80211->dev, rfpath))
3863 continue;
3864
3865 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3866 priv->stats.rx_rssi_percentage[rfpath] =
3867 pprevious_stats->RxMIMOSignalStrength[rfpath];
3868 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
3869 priv->stats.rx_rssi_percentage[rfpath] =
3870 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3871 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3872 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
3873 } else {
3874 priv->stats.rx_rssi_percentage[rfpath] =
3875 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3876 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3877 }
3878 RT_TRACE(COMP_DBG,
3879 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
3880 priv->stats.rx_rssi_percentage[rfpath]);
3881 }
3882 }
3883
3884
3885 /* Check PWDB. */
3886 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3887 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3888 pprevious_stats->RxPWDBAll);
3889
3890 if (pprevious_stats->bPacketBeacon) {
3891 /* record the beacon pwdb to the sliding window. */
3892 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
3893 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
3894 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
3895 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
3896 }
3897 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
3898 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
3899 slide_beacon_adc_pwdb_index++;
3900 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
3901 slide_beacon_adc_pwdb_index = 0;
3902 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
3903 if (pprevious_stats->RxPWDBAll >= 3)
3904 pprevious_stats->RxPWDBAll -= 3;
3905 }
3906
3907 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3908 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3909 pprevious_stats->RxPWDBAll);
3910
3911
3912 if (pprevious_stats->bPacketToSelf ||
3913 pprevious_stats->bPacketBeacon ||
3914 pprevious_stats->bToSelfBA) {
3915 if (priv->undecorated_smoothed_pwdb < 0)
3916 /* initialize */
3917 priv->undecorated_smoothed_pwdb =
3918 pprevious_stats->RxPWDBAll;
3919 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
3920 priv->undecorated_smoothed_pwdb =
3921 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3922 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3923 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
3924 } else {
3925 priv->undecorated_smoothed_pwdb =
3926 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3927 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3928 }
3929 }
3930
3931 /* Check EVM */
3932 /* record the general EVM to the sliding window. */
3933 if (pprevious_stats->SignalQuality) {
3934 if (pprevious_stats->bPacketToSelf ||
3935 pprevious_stats->bPacketBeacon ||
3936 pprevious_stats->bToSelfBA) {
3937 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3938 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
3939 last_evm = priv->stats.slide_evm[slide_evm_index];
3940 priv->stats.slide_evm_total -= last_evm;
3941 }
3942
3943 priv->stats.slide_evm_total +=
3944 pprevious_stats->SignalQuality;
3945
3946 priv->stats.slide_evm[slide_evm_index++] =
3947 pprevious_stats->SignalQuality;
3948 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
3949 slide_evm_index = 0;
3950
3951 /* <1> Showed on UI for user, in percentage. */
3952 tmp_val = priv->stats.slide_evm_total /
3953 slide_evm_statistics;
3954 priv->stats.signal_quality = tmp_val;
3955 /* Showed on UI for user in Windows Vista,
3956 * for Link quality.
3957 */
3958 priv->stats.last_signal_strength_inpercent = tmp_val;
3959 }
3960
3961 /* <2> Showed on UI for engineering */
3962 if (pprevious_stats->bPacketToSelf ||
3963 pprevious_stats->bPacketBeacon ||
3964 pprevious_stats->bToSelfBA) {
3965 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
3966 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
3967 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
3968 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
3969 priv->stats.rx_evm_percentage[nspatial_stream] =
3970 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) +
3971 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR);
3972 }
3973 }
3974 }
3975 }
3976 }
3977
3978 /*-----------------------------------------------------------------------------
3979 * Function: rtl819x_query_rxpwrpercentage()
3980 *
3981 * Overview:
3982 *
3983 * Input: char antpower
3984 *
3985 * Output: NONE
3986 *
3987 * Return: 0-100 percentage
3988 *---------------------------------------------------------------------------
3989 */
rtl819x_query_rxpwrpercentage(s8 antpower)3990 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
3991 {
3992 if ((antpower <= -100) || (antpower >= 20))
3993 return 0;
3994 else if (antpower >= 0)
3995 return 100;
3996 else
3997 return 100 + antpower;
3998
3999 } /* QueryRxPwrPercentage */
4000
rtl819x_evm_dbtopercentage(s8 value)4001 static u8 rtl819x_evm_dbtopercentage(s8 value)
4002 {
4003 s8 ret_val;
4004
4005 ret_val = value;
4006
4007 if (ret_val >= 0)
4008 ret_val = 0;
4009 if (ret_val <= -33)
4010 ret_val = -33;
4011 ret_val = 0 - ret_val;
4012 ret_val *= 3;
4013 if (ret_val == 99)
4014 ret_val = 100;
4015 return ret_val;
4016 }
4017
4018 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)4019 static long rtl819x_signal_scale_mapping(long currsig)
4020 {
4021 long retsig;
4022
4023 /* Step 1. Scale mapping. */
4024 if (currsig >= 61 && currsig <= 100)
4025 retsig = 90 + ((currsig - 60) / 4);
4026 else if (currsig >= 41 && currsig <= 60)
4027 retsig = 78 + ((currsig - 40) / 2);
4028 else if (currsig >= 31 && currsig <= 40)
4029 retsig = 66 + (currsig - 30);
4030 else if (currsig >= 21 && currsig <= 30)
4031 retsig = 54 + (currsig - 20);
4032 else if (currsig >= 5 && currsig <= 20)
4033 retsig = 42 + (((currsig - 5) * 2) / 3);
4034 else if (currsig == 4)
4035 retsig = 36;
4036 else if (currsig == 3)
4037 retsig = 27;
4038 else if (currsig == 2)
4039 retsig = 18;
4040 else if (currsig == 1)
4041 retsig = 9;
4042 else
4043 retsig = currsig;
4044
4045 return retsig;
4046 }
4047
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)4048 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4049 {
4050 if (pdrvinfo->RxHT)
4051 return false;
4052
4053 switch (pdrvinfo->RxRate) {
4054 case DESC90_RATE1M:
4055 case DESC90_RATE2M:
4056 case DESC90_RATE5_5M:
4057 case DESC90_RATE11M:
4058 return true;
4059 default:
4060 return false;
4061 }
4062 }
4063
rtl8192_query_rxphystatus(struct r8192_priv * priv,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo,struct ieee80211_rx_stats * precord_stats,bool bpacket_match_bssid,bool bpacket_toself,bool bPacketBeacon,bool bToSelfBA)4064 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4065 struct ieee80211_rx_stats *pstats,
4066 struct rx_drvinfo_819x_usb *pdrvinfo,
4067 struct ieee80211_rx_stats *precord_stats,
4068 bool bpacket_match_bssid,
4069 bool bpacket_toself,
4070 bool bPacketBeacon,
4071 bool bToSelfBA)
4072 {
4073 phy_sts_ofdm_819xusb_t *pofdm_buf;
4074 phy_sts_cck_819xusb_t *pcck_buf;
4075 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4076 u8 *prxpkt;
4077 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4078 s8 rx_pwr[4], rx_pwr_all = 0;
4079 s8 rx_snrX, rx_evmX;
4080 u8 evm, pwdb_all;
4081 u32 RSSI, total_rssi = 0;
4082 u8 is_cck_rate = 0;
4083 u8 rf_rx_num = 0;
4084 u8 sq;
4085
4086
4087 priv->stats.numqry_phystatus++;
4088
4089 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4090
4091 /* Record it for next packet processing */
4092 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4093 pstats->bPacketMatchBSSID =
4094 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4095 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4096 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4097 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4098 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4099
4100 prxpkt = (u8 *)pdrvinfo;
4101
4102 /* Move pointer to the 16th bytes. Phy status start address. */
4103 prxpkt += sizeof(struct rx_drvinfo_819x_usb);
4104
4105 /* Initial the cck and ofdm buffer pointer */
4106 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4107 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4108
4109 pstats->RxMIMOSignalQuality[0] = -1;
4110 pstats->RxMIMOSignalQuality[1] = -1;
4111 precord_stats->RxMIMOSignalQuality[0] = -1;
4112 precord_stats->RxMIMOSignalQuality[1] = -1;
4113
4114 if (is_cck_rate) {
4115 /* (1)Hardware does not provide RSSI for CCK */
4116
4117 /* (2)PWDB, Average PWDB calculated by hardware
4118 * (for rate adaptive)
4119 */
4120 u8 report;
4121
4122 priv->stats.numqry_phystatusCCK++;
4123
4124 if (!priv->bCckHighPower) {
4125 report = pcck_buf->cck_agc_rpt & 0xc0;
4126 report >>= 6;
4127 switch (report) {
4128 case 0x3:
4129 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4130 break;
4131 case 0x2:
4132 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4133 break;
4134 case 0x1:
4135 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4136 break;
4137 case 0x0:
4138 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4139 break;
4140 }
4141 } else {
4142 report = pcck_buf->cck_agc_rpt & 0x60;
4143 report >>= 5;
4144 switch (report) {
4145 case 0x3:
4146 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4147 break;
4148 case 0x2:
4149 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4150 break;
4151 case 0x1:
4152 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4153 break;
4154 case 0x0:
4155 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4156 break;
4157 }
4158 }
4159
4160 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4161 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4162 pstats->RecvSignalPower = pwdb_all;
4163
4164 /* (3) Get Signal Quality (EVM) */
4165
4166 if (pstats->RxPWDBAll > 40) {
4167 sq = 100;
4168 } else {
4169 sq = pcck_buf->sq_rpt;
4170
4171 if (pcck_buf->sq_rpt > 64)
4172 sq = 0;
4173 else if (pcck_buf->sq_rpt < 20)
4174 sq = 100;
4175 else
4176 sq = ((64 - sq) * 100) / 44;
4177 }
4178 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4179 pstats->RxMIMOSignalQuality[0] =
4180 precord_stats->RxMIMOSignalQuality[0] = sq;
4181 pstats->RxMIMOSignalQuality[1] =
4182 precord_stats->RxMIMOSignalQuality[1] = -1;
4183
4184 } else {
4185 priv->stats.numqry_phystatusHT++;
4186
4187 /* (1)Get RSSI for HT rate */
4188 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4189 /* We will judge RF RX path now. */
4190 if (priv->brfpath_rxenable[i])
4191 rf_rx_num++;
4192 else
4193 continue;
4194
4195 if (!rtl8192_phy_CheckIsLegalRFPath(
4196 priv->ieee80211->dev, i))
4197 continue;
4198
4199 rx_pwr[i] =
4200 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4201
4202 /* Get Rx snr value in DB */
4203 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4204 rx_snrX = (s8)(tmp_rxsnr);
4205 rx_snrX /= 2;
4206 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4207
4208 /* Translate DBM to percentage. */
4209 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4210 total_rssi += RSSI;
4211
4212 /* Record Signal Strength for next packet */
4213 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4214 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4215 }
4216
4217
4218 /* (2)PWDB, Average PWDB calculated by hardware
4219 * (for rate adaptive)
4220 */
4221 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4222 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4223
4224 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4225 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4226
4227 /* (3)EVM of HT rate */
4228 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4229 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4230 /* both spatial stream make sense */
4231 max_spatial_stream = 2;
4232 else
4233 /* only spatial stream 1 makes sense */
4234 max_spatial_stream = 1;
4235
4236 for (i = 0; i < max_spatial_stream; i++) {
4237 tmp_rxevm = pofdm_buf->rxevm_X[i];
4238 rx_evmX = (s8)(tmp_rxevm);
4239
4240 /* Do not use shift operation like "rx_evmX >>= 1"
4241 * because the compiler of free build environment will
4242 * set the most significant bit to "zero" when doing
4243 * shifting operation which may change a negative value
4244 * to positive one, then the dbm value (which is
4245 * supposed to be negative) is not correct anymore.
4246 */
4247 rx_evmX /= 2; /* dbm */
4248
4249 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4250 if (i == 0)
4251 /* Fill value in RFD, Get the first spatial
4252 * stream only
4253 */
4254 pstats->SignalQuality =
4255 precord_stats->SignalQuality =
4256 evm & 0xff;
4257 pstats->RxMIMOSignalQuality[i] =
4258 precord_stats->RxMIMOSignalQuality[i] =
4259 evm & 0xff;
4260 }
4261
4262
4263 /* record rx statistics for debug */
4264 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4265 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4266 &rxsc_sgien_exflg;
4267 if (pdrvinfo->BW) /* 40M channel */
4268 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4269 else /* 20M channel */
4270 priv->stats.received_bwtype[0]++;
4271 }
4272
4273 /* UI BSS List signal strength(in percentage), make it good looking,
4274 * from 0~100. It is assigned to the BSS List in
4275 * GetValueFromBeaconOrProbeRsp().
4276 */
4277 if (is_cck_rate) {
4278 pstats->SignalStrength =
4279 precord_stats->SignalStrength =
4280 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4281 } else {
4282 /* We can judge RX path number now. */
4283 if (rf_rx_num != 0) {
4284 pstats->SignalStrength =
4285 precord_stats->SignalStrength =
4286 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4287 }
4288 }
4289 } /* QueryRxPhyStatus8190Pci */
4290
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4291 static void rtl8192_record_rxdesc_forlateruse(
4292 struct ieee80211_rx_stats *psrc_stats,
4293 struct ieee80211_rx_stats *ptarget_stats)
4294 {
4295 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4296 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4297 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4298 }
4299
4300
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo)4301 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4302 struct ieee80211_rx_stats *pstats,
4303 struct rx_drvinfo_819x_usb *pdrvinfo)
4304 {
4305 /* TODO: We must only check packet for current MAC address.
4306 * Not finish
4307 */
4308 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4309 struct net_device *dev = info->dev;
4310 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4311 bool bpacket_match_bssid, bpacket_toself;
4312 bool bPacketBeacon = false, bToSelfBA = false;
4313 static struct ieee80211_rx_stats previous_stats;
4314 struct rtl_80211_hdr_3addr *hdr;
4315 u16 fc, type;
4316
4317 /* Get Signal Quality for only RX data queue (but not command queue) */
4318
4319 u8 *tmp_buf;
4320 u8 *praddr;
4321
4322 /* Get MAC frame start address. */
4323 tmp_buf = (u8 *)skb->data;
4324
4325 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4326 fc = le16_to_cpu(hdr->frame_ctl);
4327 type = WLAN_FC_GET_TYPE(fc);
4328 praddr = hdr->addr1;
4329
4330 /* Check if the received packet is acceptable. */
4331 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
4332 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4333 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4334 bpacket_toself = bpacket_match_bssid &
4335 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr));
4336
4337 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4338 bPacketBeacon = true;
4339 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4340 if ((ether_addr_equal(praddr, dev->dev_addr)))
4341 bToSelfBA = true;
4342 }
4343
4344
4345
4346 if (bpacket_match_bssid)
4347 priv->stats.numpacket_matchbssid++;
4348 if (bpacket_toself)
4349 priv->stats.numpacket_toself++;
4350 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4351 * Because phy information is contained in the last packet of AMPDU
4352 * only, so driver should process phy information of previous packet
4353 */
4354 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4355 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4356 bpacket_match_bssid, bpacket_toself,
4357 bPacketBeacon, bToSelfBA);
4358 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4359 }
4360
4361 /**
4362 * Function: UpdateReceivedRateHistogramStatistics
4363 * Overview: Record the received data rate
4364 *
4365 * Input:
4366 * struct net_device *dev
4367 * struct ieee80211_rx_stats *stats
4368 *
4369 * Output:
4370 *
4371 * (priv->stats.ReceivedRateHistogram[] is updated)
4372 * Return:
4373 * None
4374 */
4375 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4376 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4377 struct ieee80211_rx_stats *stats)
4378 {
4379 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4380 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4381 u32 rcvType = 1;
4382 u32 rateIndex;
4383 /* 1: short preamble/GI, 0: long preamble/GI */
4384 u32 preamble_guardinterval;
4385
4386
4387 if (stats->bCRC)
4388 rcvType = 2;
4389 else if (stats->bICV)
4390 rcvType = 3;
4391
4392 if (stats->bShortPreamble)
4393 preamble_guardinterval = 1; /* short */
4394 else
4395 preamble_guardinterval = 0; /* long */
4396
4397 switch (stats->rate) {
4398 /* CCK rate */
4399 case MGN_1M:
4400 rateIndex = 0;
4401 break;
4402 case MGN_2M:
4403 rateIndex = 1;
4404 break;
4405 case MGN_5_5M:
4406 rateIndex = 2;
4407 break;
4408 case MGN_11M:
4409 rateIndex = 3;
4410 break;
4411 /* Legacy OFDM rate */
4412 case MGN_6M:
4413 rateIndex = 4;
4414 break;
4415 case MGN_9M:
4416 rateIndex = 5;
4417 break;
4418 case MGN_12M:
4419 rateIndex = 6;
4420 break;
4421 case MGN_18M:
4422 rateIndex = 7;
4423 break;
4424 case MGN_24M:
4425 rateIndex = 8;
4426 break;
4427 case MGN_36M:
4428 rateIndex = 9;
4429 break;
4430 case MGN_48M:
4431 rateIndex = 10;
4432 break;
4433 case MGN_54M:
4434 rateIndex = 11;
4435 break;
4436 /* 11n High throughput rate */
4437 case MGN_MCS0:
4438 rateIndex = 12;
4439 break;
4440 case MGN_MCS1:
4441 rateIndex = 13;
4442 break;
4443 case MGN_MCS2:
4444 rateIndex = 14;
4445 break;
4446 case MGN_MCS3:
4447 rateIndex = 15;
4448 break;
4449 case MGN_MCS4:
4450 rateIndex = 16;
4451 break;
4452 case MGN_MCS5:
4453 rateIndex = 17;
4454 break;
4455 case MGN_MCS6:
4456 rateIndex = 18;
4457 break;
4458 case MGN_MCS7:
4459 rateIndex = 19;
4460 break;
4461 case MGN_MCS8:
4462 rateIndex = 20;
4463 break;
4464 case MGN_MCS9:
4465 rateIndex = 21;
4466 break;
4467 case MGN_MCS10:
4468 rateIndex = 22;
4469 break;
4470 case MGN_MCS11:
4471 rateIndex = 23;
4472 break;
4473 case MGN_MCS12:
4474 rateIndex = 24;
4475 break;
4476 case MGN_MCS13:
4477 rateIndex = 25;
4478 break;
4479 case MGN_MCS14:
4480 rateIndex = 26;
4481 break;
4482 case MGN_MCS15:
4483 rateIndex = 27;
4484 break;
4485 default:
4486 rateIndex = 28;
4487 break;
4488 }
4489 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4490 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4491 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4492 }
4493
4494
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4495 static void query_rxdesc_status(struct sk_buff *skb,
4496 struct ieee80211_rx_stats *stats,
4497 bool bIsRxAggrSubframe)
4498 {
4499 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4500 struct net_device *dev = info->dev;
4501 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4502 struct rx_drvinfo_819x_usb *driver_info = NULL;
4503
4504 /* Get Rx Descriptor Information */
4505 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4506
4507 stats->Length = desc->Length;
4508 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4509 stats->RxBufShift = 0;
4510 stats->bICV = desc->ICV;
4511 stats->bCRC = desc->CRC32;
4512 stats->bHwError = stats->bCRC | stats->bICV;
4513 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4514 stats->Decrypted = !desc->SWDec;
4515
4516 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4517 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4518 stats->bHwError = false;
4519 else
4520 stats->bHwError = stats->bCRC | stats->bICV;
4521
4522 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4523 stats->bHwError |= 1;
4524 /* Get Driver Info */
4525 /* TODO: Need to verify it on FGPA platform
4526 * Driver info are written to the RxBuffer following rx desc
4527 */
4528 if (stats->RxDrvInfoSize != 0) {
4529 driver_info = (struct rx_drvinfo_819x_usb *)(
4530 skb->data
4531 + sizeof(struct rx_desc_819x_usb)
4532 + stats->RxBufShift
4533 );
4534 /* unit: 0.5M */
4535 /* TODO */
4536 if (!stats->bHwError) {
4537 u8 ret_rate;
4538
4539 ret_rate = HwRateToMRate90(driver_info->RxHT,
4540 driver_info->RxRate);
4541 if (ret_rate == 0xff) {
4542 /* Abnormal Case: Receive CRC OK packet with Rx
4543 * descriptor indicating non supported rate.
4544 * Special Error Handling here
4545 */
4546
4547 stats->bHwError = 1;
4548 /* Set 1M rate by default */
4549 stats->rate = MGN_1M;
4550 } else {
4551 stats->rate = ret_rate;
4552 }
4553 } else {
4554 stats->rate = 0x02;
4555 }
4556
4557 stats->bShortPreamble = driver_info->SPLCP;
4558
4559
4560 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4561
4562 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4563 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4564 (driver_info->FirstAGGR == 1);
4565 stats->TimeStampLow = driver_info->TSFL;
4566
4567 UpdateRxPktTimeStamp8190(dev, stats);
4568
4569 /* Rx A-MPDU */
4570 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4571 RT_TRACE(COMP_RXDESC,
4572 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4573 driver_info->FirstAGGR, driver_info->PartAggr);
4574 }
4575
4576 skb_pull(skb, sizeof(struct rx_desc_819x_usb));
4577 /* Get Total offset of MPDU Frame Body */
4578 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4579 stats->bShift = 1;
4580 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4581 }
4582
4583 if (driver_info) {
4584 stats->RxIs40MHzPacket = driver_info->BW;
4585 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4586 }
4587 }
4588
rtl8192_rx_nomal(struct sk_buff * skb)4589 static void rtl8192_rx_nomal(struct sk_buff *skb)
4590 {
4591 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4592 struct net_device *dev = info->dev;
4593 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4594 struct ieee80211_rx_stats stats = {
4595 .signal = 0,
4596 .noise = 0x100 - 98,
4597 .rate = 0,
4598 .freq = IEEE80211_24GHZ_BAND,
4599 };
4600 u32 rx_pkt_len = 0;
4601 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4602 bool unicast_packet = false;
4603
4604 /* 20 is for ps-poll */
4605 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4606 /* first packet should not contain Rx aggregation header */
4607 query_rxdesc_status(skb, &stats, false);
4608 /* TODO */
4609 /* hardware related info */
4610 /* Process the MPDU received */
4611 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4612
4613 rx_pkt_len = skb->len;
4614 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4615 unicast_packet = false;
4616 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4617 /* TODO */
4618 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4619 /* TODO */
4620 } else {
4621 /* unicast packet */
4622 unicast_packet = true;
4623 }
4624
4625 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4626 dev_kfree_skb_any(skb);
4627 } else {
4628 priv->stats.rxoktotal++;
4629 if (unicast_packet)
4630 priv->stats.rxbytesunicast += rx_pkt_len;
4631 }
4632 } else {
4633 priv->stats.rxurberr++;
4634 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4635 dev_kfree_skb_any(skb);
4636 }
4637 }
4638
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4639 static void rtl819xusb_process_received_packet(
4640 struct net_device *dev,
4641 struct ieee80211_rx_stats *pstats)
4642 {
4643 struct r8192_priv *priv = ieee80211_priv(dev);
4644
4645 /* Get shifted bytes of Starting address of 802.11 header. */
4646 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4647 #ifdef TODO /* about HCT */
4648 if (!Adapter->bInHctTest)
4649 CountRxErrStatistics(Adapter, pRfd);
4650 #endif
4651 #ifdef ENABLE_PS /* for adding ps function in future */
4652 RT_RF_POWER_STATE rtState;
4653 /* When RF is off, we should not count the packet for hw/sw synchronize
4654 * reason, ie. there may be a duration while sw switch is changed and
4655 * hw switch is being changed.
4656 */
4657 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4658 (u8 *)(&rtState));
4659 if (rtState == eRfOff)
4660 return;
4661 #endif
4662 priv->stats.rxframgment++;
4663
4664 #ifdef TODO
4665 RmMonitorSignalStrength(Adapter, pRfd);
4666 #endif
4667 /* We have to release RFD and return if rx pkt is cmd pkt. */
4668 if (rtl819xusb_rx_command_packet(dev, pstats))
4669 return;
4670
4671 #ifdef SW_CRC_CHECK
4672 SwCrcCheck();
4673 #endif
4674
4675
4676 }
4677
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4678 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4679 struct ieee80211_rx_stats *stats)
4680 {
4681 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4682
4683 /* Get Rx Descriptor Information */
4684 stats->virtual_address = (u8 *)skb->data;
4685 stats->Length = desc->Length;
4686 stats->RxDrvInfoSize = 0;
4687 stats->RxBufShift = 0;
4688 stats->packetlength = stats->Length - scrclng;
4689 stats->fraglength = stats->packetlength;
4690 stats->fragoffset = 0;
4691 stats->ntotalfrag = 1;
4692 }
4693
4694
rtl8192_rx_cmd(struct sk_buff * skb)4695 static void rtl8192_rx_cmd(struct sk_buff *skb)
4696 {
4697 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4698 struct net_device *dev = info->dev;
4699 /* TODO */
4700 struct ieee80211_rx_stats stats = {
4701 .signal = 0,
4702 .noise = 0x100 - 98,
4703 .rate = 0,
4704 .freq = IEEE80211_24GHZ_BAND,
4705 };
4706
4707 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4708 query_rx_cmdpkt_desc_status(skb, &stats);
4709 /* prfd->queue_id = 1; */
4710
4711 /* Process the command packet received. */
4712
4713 rtl819xusb_process_received_packet(dev, &stats);
4714
4715 dev_kfree_skb_any(skb);
4716 }
4717 }
4718
rtl8192_irq_rx_tasklet(struct r8192_priv * priv)4719 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4720 {
4721 struct sk_buff *skb;
4722 struct rtl8192_rx_info *info;
4723
4724 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4725 info = (struct rtl8192_rx_info *)skb->cb;
4726 switch (info->out_pipe) {
4727 /* Nomal packet pipe */
4728 case 3:
4729 priv->IrpPendingCount--;
4730 rtl8192_rx_nomal(skb);
4731 break;
4732
4733 /* Command packet pipe */
4734 case 9:
4735 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4736 info->out_pipe);
4737
4738 rtl8192_rx_cmd(skb);
4739 break;
4740
4741 default: /* should never get here! */
4742 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4743 info->out_pipe);
4744 dev_kfree_skb(skb);
4745 break;
4746 }
4747 }
4748 }
4749
4750 static const struct net_device_ops rtl8192_netdev_ops = {
4751 .ndo_open = rtl8192_open,
4752 .ndo_stop = rtl8192_close,
4753 .ndo_get_stats = rtl8192_stats,
4754 .ndo_tx_timeout = tx_timeout,
4755 .ndo_do_ioctl = rtl8192_ioctl,
4756 .ndo_set_rx_mode = r8192_set_multicast,
4757 .ndo_set_mac_address = r8192_set_mac_adr,
4758 .ndo_validate_addr = eth_validate_addr,
4759 .ndo_start_xmit = ieee80211_xmit,
4760 };
4761
4762
4763 /****************************************************************************
4764 * ---------------------------- USB_STUFF---------------------------
4765 *****************************************************************************/
4766
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4767 static int rtl8192_usb_probe(struct usb_interface *intf,
4768 const struct usb_device_id *id)
4769 {
4770 struct net_device *dev = NULL;
4771 struct r8192_priv *priv = NULL;
4772 struct usb_device *udev = interface_to_usbdev(intf);
4773 int ret;
4774
4775 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4776
4777 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4778 if (!dev)
4779 return -ENOMEM;
4780
4781 usb_set_intfdata(intf, dev);
4782 SET_NETDEV_DEV(dev, &intf->dev);
4783 priv = ieee80211_priv(dev);
4784 priv->ieee80211 = netdev_priv(dev);
4785 priv->udev = udev;
4786
4787 dev->netdev_ops = &rtl8192_netdev_ops;
4788
4789 dev->wireless_handlers = &r8192_wx_handlers_def;
4790
4791 dev->type = ARPHRD_ETHER;
4792
4793 dev->watchdog_timeo = HZ * 3;
4794
4795 if (dev_alloc_name(dev, ifname) < 0) {
4796 RT_TRACE(COMP_INIT,
4797 "Oops: devname already taken! Trying wlan%%d...\n");
4798 ifname = "wlan%d";
4799 dev_alloc_name(dev, ifname);
4800 }
4801
4802 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4803 if (rtl8192_init(dev) != 0) {
4804 RT_TRACE(COMP_ERR, "Initialization failed");
4805 ret = -ENODEV;
4806 goto fail;
4807 }
4808 netif_carrier_off(dev);
4809 netif_stop_queue(dev);
4810
4811 ret = register_netdev(dev);
4812 if (ret)
4813 goto fail2;
4814
4815 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4816 rtl8192_proc_init_one(dev);
4817
4818
4819 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4820 return 0;
4821
4822 fail2:
4823 rtl8192_down(dev);
4824 fail:
4825 kfree(priv->pFirmware);
4826 priv->pFirmware = NULL;
4827 rtl8192_usb_deleteendpoints(dev);
4828 msleep(10);
4829 free_ieee80211(dev);
4830
4831 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
4832 return ret;
4833 }
4834
4835 /* detach all the work and timer structure declared or inititialize
4836 * in r8192U_init function.
4837 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)4838 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
4839 {
4840 cancel_work_sync(&priv->reset_wq);
4841 cancel_delayed_work(&priv->watch_dog_wq);
4842 cancel_delayed_work(&priv->update_beacon_wq);
4843 cancel_work_sync(&priv->qos_activate);
4844 }
4845
4846
rtl8192_usb_disconnect(struct usb_interface * intf)4847 static void rtl8192_usb_disconnect(struct usb_interface *intf)
4848 {
4849 struct net_device *dev = usb_get_intfdata(intf);
4850 struct r8192_priv *priv = ieee80211_priv(dev);
4851
4852 unregister_netdev(dev);
4853
4854 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n");
4855 rtl8192_proc_remove_one(dev);
4856
4857 rtl8192_down(dev);
4858 kfree(priv->pFirmware);
4859 priv->pFirmware = NULL;
4860 rtl8192_usb_deleteendpoints(dev);
4861 usleep_range(10000, 11000);
4862 free_ieee80211(dev);
4863
4864 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
4865 }
4866
rtl8192_usb_module_init(void)4867 static int __init rtl8192_usb_module_init(void)
4868 {
4869 int ret;
4870
4871 #ifdef CONFIG_IEEE80211_DEBUG
4872 ret = ieee80211_debug_init();
4873 if (ret) {
4874 pr_err("ieee80211_debug_init() failed %d\n", ret);
4875 return ret;
4876 }
4877 #endif
4878 ret = ieee80211_crypto_init();
4879 if (ret) {
4880 pr_err("ieee80211_crypto_init() failed %d\n", ret);
4881 return ret;
4882 }
4883
4884 ret = ieee80211_crypto_tkip_init();
4885 if (ret) {
4886 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
4887 return ret;
4888 }
4889
4890 ret = ieee80211_crypto_ccmp_init();
4891 if (ret) {
4892 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
4893 return ret;
4894 }
4895
4896 ret = ieee80211_crypto_wep_init();
4897 if (ret) {
4898 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
4899 return ret;
4900 }
4901
4902 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
4903 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
4904 RT_TRACE(COMP_INIT, "Initializing module");
4905 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
4906 rtl8192_proc_module_init();
4907 return usb_register(&rtl8192_usb_driver);
4908 }
4909
4910
rtl8192_usb_module_exit(void)4911 static void __exit rtl8192_usb_module_exit(void)
4912 {
4913 usb_deregister(&rtl8192_usb_driver);
4914
4915 RT_TRACE(COMP_DOWN, "Exiting");
4916 }
4917
EnableHWSecurityConfig8192(struct net_device * dev)4918 void EnableHWSecurityConfig8192(struct net_device *dev)
4919 {
4920 u8 SECR_value = 0x0;
4921 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4922 struct ieee80211_device *ieee = priv->ieee80211;
4923
4924 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
4925 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) {
4926 SECR_value |= SCR_RxUseDK;
4927 SECR_value |= SCR_TxUseDK;
4928 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
4929 SECR_value |= SCR_RxUseDK;
4930 SECR_value |= SCR_TxUseDK;
4931 }
4932 /* add HWSec active enable here.
4933 * default using hwsec. when peer AP is in N mode only and
4934 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
4935 * it), use software security. when peer AP is in b,g,n mode mixed and
4936 * pairwise_key_type is none_aes, use g mode hw security.
4937 */
4938
4939 ieee->hwsec_active = 1;
4940
4941 /* add hwsec_support flag to totol control hw_sec on/off */
4942 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
4943 ieee->hwsec_active = 0;
4944 SECR_value &= ~SCR_RxDecEnable;
4945 }
4946 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
4947 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
4948 SECR_value);
4949 write_nic_byte(dev, SECR, SECR_value);
4950 }
4951
4952
setKey(struct net_device * dev,u8 EntryNo,u8 KeyIndex,u16 KeyType,u8 * MacAddr,u8 DefaultKey,u32 * KeyContent)4953 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
4954 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
4955 {
4956 u32 TargetCommand = 0;
4957 u32 TargetContent = 0;
4958 u16 usConfig = 0;
4959 u8 i;
4960
4961 if (EntryNo >= TOTAL_CAM_ENTRY)
4962 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
4963
4964 RT_TRACE(COMP_SEC,
4965 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
4966 dev, EntryNo, KeyIndex, KeyType, MacAddr);
4967
4968 if (DefaultKey)
4969 usConfig |= BIT(15) | (KeyType << 2);
4970 else
4971 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
4972
4973
4974 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
4975 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
4976 TargetCommand |= BIT(31) | BIT(16);
4977
4978 if (i == 0) { /* MAC|Config */
4979 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
4980 (u32)(*(MacAddr + 1)) << 24 |
4981 (u32)usConfig;
4982
4983 write_nic_dword(dev, WCAMI, TargetContent);
4984 write_nic_dword(dev, RWCAM, TargetCommand);
4985 } else if (i == 1) { /* MAC */
4986 TargetContent = (u32)(*(MacAddr + 2)) |
4987 (u32)(*(MacAddr + 3)) << 8 |
4988 (u32)(*(MacAddr + 4)) << 16 |
4989 (u32)(*(MacAddr + 5)) << 24;
4990 write_nic_dword(dev, WCAMI, TargetContent);
4991 write_nic_dword(dev, RWCAM, TargetCommand);
4992 } else {
4993 /* Key Material */
4994 if (KeyContent) {
4995 write_nic_dword(dev, WCAMI,
4996 *(KeyContent + i - 2));
4997 write_nic_dword(dev, RWCAM, TargetCommand);
4998 }
4999 }
5000 }
5001 }
5002
5003 /***************************************************************************
5004 * ------------------- module init / exit stubs ----------------
5005 ****************************************************************************/
5006 module_init(rtl8192_usb_module_init);
5007 module_exit(rtl8192_usb_module_exit);
5008
