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, rt = -1;
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 rt = -ENOMEM;
1571 goto error;
1572 }
1573 usb_fill_bulk_urb(tx_urb_zero, udev,
1574 usb_sndbulkpipe(udev, idx_pipe),
1575 &zero, 0, tx_zero_isr, dev);
1576 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1577 if (status) {
1578 RT_TRACE(COMP_ERR,
1579 "Error TX URB for zero byte %d, error %d",
1580 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1581 status);
1582 goto error;
1583 }
1584 }
1585 netif_trans_update(dev);
1586 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1587 return 0;
1588 }
1589
1590 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1591 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1592 status);
1593
1594 error:
1595 dev_kfree_skb_any(skb);
1596 usb_free_urb(tx_urb);
1597 usb_free_urb(tx_urb_zero);
1598 return rt;
1599 }
1600
rtl8192_usb_initendpoints(struct net_device * dev)1601 static short rtl8192_usb_initendpoints(struct net_device *dev)
1602 {
1603 struct r8192_priv *priv = ieee80211_priv(dev);
1604
1605 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *),
1606 GFP_KERNEL);
1607 if (!priv->rx_urb)
1608 return -ENOMEM;
1609
1610 #ifndef JACKSON_NEW_RX
1611 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1612 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1613 if (!priv->rx_urb[i])
1614 return -ENOMEM;
1615
1616 priv->rx_urb[i]->transfer_buffer =
1617 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1618 if (!priv->rx_urb[i]->transfer_buffer)
1619 return -ENOMEM;
1620
1621 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1622 }
1623 #endif
1624
1625 #ifdef THOMAS_BEACON
1626 {
1627 long align = 0;
1628 void *oldaddr, *newaddr;
1629
1630 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1631 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1632 if (!priv->oldaddr)
1633 return -ENOMEM;
1634 oldaddr = priv->oldaddr;
1635 align = ((long)oldaddr) & 3;
1636 if (align) {
1637 newaddr = oldaddr + 4 - align;
1638 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1639 } else {
1640 newaddr = oldaddr;
1641 priv->rx_urb[16]->transfer_buffer_length = 16;
1642 }
1643 priv->rx_urb[16]->transfer_buffer = newaddr;
1644 }
1645 #endif
1646
1647 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1648 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1649 GFP_KERNEL);
1650 if (!priv->pp_rxskb) {
1651 kfree(priv->rx_urb);
1652
1653 priv->pp_rxskb = NULL;
1654 priv->rx_urb = NULL;
1655
1656 DMESGE("Endpoint Alloc Failure");
1657 return -ENOMEM;
1658 }
1659
1660 netdev_dbg(dev, "End of initendpoints\n");
1661 return 0;
1662 }
1663
1664 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1665 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1666 {
1667 int i;
1668 struct r8192_priv *priv = ieee80211_priv(dev);
1669
1670 if (priv->rx_urb) {
1671 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1672 usb_kill_urb(priv->rx_urb[i]);
1673 usb_free_urb(priv->rx_urb[i]);
1674 }
1675 kfree(priv->rx_urb);
1676 priv->rx_urb = NULL;
1677 }
1678 kfree(priv->oldaddr);
1679 priv->oldaddr = NULL;
1680
1681 kfree(priv->pp_rxskb);
1682 priv->pp_rxskb = NULL;
1683 }
1684 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1685 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1686 {
1687 int i;
1688 struct r8192_priv *priv = ieee80211_priv(dev);
1689
1690 #ifndef JACKSON_NEW_RX
1691
1692 if (priv->rx_urb) {
1693 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1694 usb_kill_urb(priv->rx_urb[i]);
1695 kfree(priv->rx_urb[i]->transfer_buffer);
1696 usb_free_urb(priv->rx_urb[i]);
1697 }
1698 kfree(priv->rx_urb);
1699 priv->rx_urb = NULL;
1700 }
1701 #else
1702 kfree(priv->rx_urb);
1703 priv->rx_urb = NULL;
1704 kfree(priv->oldaddr);
1705 priv->oldaddr = NULL;
1706
1707 kfree(priv->pp_rxskb);
1708 priv->pp_rxskb = 0;
1709
1710 #endif
1711 }
1712 #endif
1713
1714 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1715 static void rtl8192_link_change(struct net_device *dev)
1716 {
1717 struct r8192_priv *priv = ieee80211_priv(dev);
1718 struct ieee80211_device *ieee = priv->ieee80211;
1719
1720 if (ieee->state == IEEE80211_LINKED) {
1721 rtl8192_net_update(dev);
1722 rtl8192_update_ratr_table(dev);
1723 /* Add this as in pure N mode, wep encryption will use software
1724 * way, but there is no chance to set this as wep will not set
1725 * group key in wext.
1726 */
1727 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1728 ieee->pairwise_key_type == KEY_TYPE_WEP104)
1729 EnableHWSecurityConfig8192(dev);
1730 }
1731 /*update timing params*/
1732 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1733 u32 reg = 0;
1734
1735 read_nic_dword(dev, RCR, ®);
1736 if (priv->ieee80211->state == IEEE80211_LINKED)
1737 priv->ReceiveConfig = reg |= RCR_CBSSID;
1738 else
1739 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1740 write_nic_dword(dev, RCR, reg);
1741 }
1742 }
1743
1744 static const struct ieee80211_qos_parameters def_qos_parameters = {
1745 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1746 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1747 {2, 2, 2, 2},/* aifs */
1748 {0, 0, 0, 0},/* flags */
1749 {0, 0, 0, 0} /* tx_op_limit */
1750 };
1751
1752
rtl8192_update_beacon(struct work_struct * work)1753 static void rtl8192_update_beacon(struct work_struct *work)
1754 {
1755 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1756 update_beacon_wq.work);
1757 struct net_device *dev = priv->ieee80211->dev;
1758 struct ieee80211_device *ieee = priv->ieee80211;
1759 struct ieee80211_network *net = &ieee->current_network;
1760
1761 if (ieee->pHTInfo->bCurrentHTSupport)
1762 HTUpdateSelfAndPeerSetting(ieee, net);
1763 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1764 net->bssht.bdRT2RTLongSlotTime;
1765 rtl8192_update_cap(dev, net->capability);
1766 }
1767
1768 /*
1769 * background support to run QoS activate functionality
1770 */
1771 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1772 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1773 static void rtl8192_qos_activate(struct work_struct *work)
1774 {
1775 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1776 qos_activate);
1777 struct net_device *dev = priv->ieee80211->dev;
1778 struct ieee80211_qos_parameters *qos_parameters =
1779 &priv->ieee80211->current_network.qos_data.parameters;
1780 u8 mode = priv->ieee80211->current_network.mode;
1781 u32 u1bAIFS;
1782 u32 u4bAcParam;
1783 u32 op_limit;
1784 u32 cw_max;
1785 u32 cw_min;
1786 int i;
1787
1788 mutex_lock(&priv->mutex);
1789 if (priv->ieee80211->state != IEEE80211_LINKED)
1790 goto success;
1791 RT_TRACE(COMP_QOS,
1792 "qos active process with associate response received\n");
1793 /* It better set slot time at first
1794 *
1795 * For we just support b/g mode at present, let the slot time at
1796 * 9/20 selection
1797 *
1798 * update the ac parameter to related registers
1799 */
1800 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1801 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1802 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1803 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1804 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1805 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1806 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1807 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1808 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1809 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1810 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1811 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1812 }
1813
1814 success:
1815 mutex_unlock(&priv->mutex);
1816 }
1817
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1818 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1819 int active_network,
1820 struct ieee80211_network *network)
1821 {
1822 int ret = 0;
1823 u32 size = sizeof(struct ieee80211_qos_parameters);
1824
1825 if (priv->ieee80211->state != IEEE80211_LINKED)
1826 return ret;
1827
1828 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1829 return ret;
1830
1831 if (network->flags & NETWORK_HAS_QOS_MASK) {
1832 if (active_network &&
1833 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1834 network->qos_data.active = network->qos_data.supported;
1835
1836 if ((network->qos_data.active == 1) && (active_network == 1) &&
1837 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1838 (network->qos_data.old_param_count !=
1839 network->qos_data.param_count)) {
1840 network->qos_data.old_param_count =
1841 network->qos_data.param_count;
1842 schedule_work(&priv->qos_activate);
1843 RT_TRACE(COMP_QOS,
1844 "QoS parameters change call qos_activate\n");
1845 }
1846 } else {
1847 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1848 &def_qos_parameters, size);
1849
1850 if ((network->qos_data.active == 1) && (active_network == 1)) {
1851 schedule_work(&priv->qos_activate);
1852 RT_TRACE(COMP_QOS,
1853 "QoS was disabled call qos_activate\n");
1854 }
1855 network->qos_data.active = 0;
1856 network->qos_data.supported = 0;
1857 }
1858
1859 return 0;
1860 }
1861
1862 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1863 static int rtl8192_handle_beacon(struct net_device *dev,
1864 struct ieee80211_beacon *beacon,
1865 struct ieee80211_network *network)
1866 {
1867 struct r8192_priv *priv = ieee80211_priv(dev);
1868
1869 rtl8192_qos_handle_probe_response(priv, 1, network);
1870 schedule_delayed_work(&priv->update_beacon_wq, 0);
1871 return 0;
1872 }
1873
1874 /*
1875 * handling the beaconing responses. if we get different QoS setting
1876 * off the network from the associated setting, adjust the QoS
1877 * setting
1878 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1879 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1880 struct ieee80211_network *network)
1881 {
1882 unsigned long flags;
1883 u32 size = sizeof(struct ieee80211_qos_parameters);
1884 int set_qos_param = 0;
1885
1886 if (!priv || !network)
1887 return 0;
1888
1889 if (priv->ieee80211->state != IEEE80211_LINKED)
1890 return 0;
1891
1892 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1893 return 0;
1894
1895 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1896 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1897 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1898 &network->qos_data.parameters,
1899 sizeof(struct ieee80211_qos_parameters));
1900 priv->ieee80211->current_network.qos_data.active = 1;
1901 set_qos_param = 1;
1902 /* update qos parameter for current network */
1903 priv->ieee80211->current_network.qos_data.old_param_count =
1904 priv->ieee80211->current_network.qos_data.param_count;
1905 priv->ieee80211->current_network.qos_data.param_count =
1906 network->qos_data.param_count;
1907 } else {
1908 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1909 &def_qos_parameters, size);
1910 priv->ieee80211->current_network.qos_data.active = 0;
1911 priv->ieee80211->current_network.qos_data.supported = 0;
1912 set_qos_param = 1;
1913 }
1914
1915 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1916
1917 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1918 network->flags,
1919 priv->ieee80211->current_network.qos_data.active);
1920 if (set_qos_param == 1)
1921 schedule_work(&priv->qos_activate);
1922
1923
1924 return 0;
1925 }
1926
1927
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)1928 static int rtl8192_handle_assoc_response(
1929 struct net_device *dev,
1930 struct ieee80211_assoc_response_frame *resp,
1931 struct ieee80211_network *network)
1932 {
1933 struct r8192_priv *priv = ieee80211_priv(dev);
1934
1935 rtl8192_qos_association_resp(priv, network);
1936 return 0;
1937 }
1938
1939
rtl8192_update_ratr_table(struct net_device * dev)1940 static void rtl8192_update_ratr_table(struct net_device *dev)
1941 {
1942 struct r8192_priv *priv = ieee80211_priv(dev);
1943 struct ieee80211_device *ieee = priv->ieee80211;
1944 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
1945 u32 ratr_value = 0;
1946 u8 rate_index = 0;
1947
1948 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
1949 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
1950 switch (ieee->mode) {
1951 case IEEE_A:
1952 ratr_value &= 0x00000FF0;
1953 break;
1954 case IEEE_B:
1955 ratr_value &= 0x0000000F;
1956 break;
1957 case IEEE_G:
1958 ratr_value &= 0x00000FF7;
1959 break;
1960 case IEEE_N_24G:
1961 case IEEE_N_5G:
1962 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) {
1963 ratr_value &= 0x0007F007;
1964 } else {
1965 if (priv->rf_type == RF_1T2R)
1966 ratr_value &= 0x000FF007;
1967 else
1968 ratr_value &= 0x0F81F007;
1969 }
1970 break;
1971 default:
1972 break;
1973 }
1974 ratr_value &= 0x0FFFFFFF;
1975 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
1976 ratr_value |= 0x80000000;
1977 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
1978 ieee->pHTInfo->bCurShortGI20MHz)
1979 ratr_value |= 0x80000000;
1980 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
1981 write_nic_byte(dev, UFWP, 1);
1982 }
1983
1984 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
1985 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)1986 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
1987 {
1988 struct r8192_priv *priv = ieee80211_priv(dev);
1989 struct ieee80211_device *ieee = priv->ieee80211;
1990 struct ieee80211_network *network = &ieee->current_network;
1991 int wpa_ie_len = ieee->wpa_ie_len;
1992 struct ieee80211_crypt_data *crypt;
1993 int encrypt;
1994
1995 crypt = ieee->crypt[ieee->tx_keyidx];
1996 /* we use connecting AP's capability instead of only security config
1997 * on our driver to distinguish whether it should use N mode or G mode
1998 */
1999 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2000 (ieee->host_encrypt && crypt && crypt->ops &&
2001 (strcmp(crypt->ops->name, "WEP") == 0));
2002
2003 /* simply judge */
2004 if (encrypt && (wpa_ie_len == 0)) {
2005 /* wep encryption, no N mode setting */
2006 return false;
2007 } else if ((wpa_ie_len != 0)) {
2008 /* parse pairwise key type */
2009 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))))
2010 return true;
2011 else
2012 return false;
2013 } else {
2014 return true;
2015 }
2016
2017 return true;
2018 }
2019
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)2020 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2021 {
2022 struct r8192_priv *priv = ieee80211_priv(dev);
2023
2024 return priv->ieee80211->bHalfWirelessN24GMode;
2025 }
2026
rtl8192_refresh_supportrate(struct r8192_priv * priv)2027 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2028 {
2029 struct ieee80211_device *ieee = priv->ieee80211;
2030 /* We do not consider set support rate for ABG mode, only
2031 * HT MCS rate is set here.
2032 */
2033 if (ieee->mode == WIRELESS_MODE_N_24G ||
2034 ieee->mode == WIRELESS_MODE_N_5G)
2035 memcpy(ieee->Regdot11HTOperationalRateSet,
2036 ieee->RegHTSuppRateSet, 16);
2037 else
2038 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2039 }
2040
rtl8192_getSupportedWireleeMode(struct net_device * dev)2041 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2042 {
2043 struct r8192_priv *priv = ieee80211_priv(dev);
2044 u8 ret = 0;
2045
2046 switch (priv->rf_chip) {
2047 case RF_8225:
2048 case RF_8256:
2049 case RF_PSEUDO_11N:
2050 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2051 break;
2052 case RF_8258:
2053 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2054 break;
2055 default:
2056 ret = WIRELESS_MODE_B;
2057 break;
2058 }
2059 return ret;
2060 }
2061
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2062 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2063 {
2064 struct r8192_priv *priv = ieee80211_priv(dev);
2065 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2066
2067 if (wireless_mode == WIRELESS_MODE_AUTO ||
2068 (wireless_mode & bSupportMode) == 0) {
2069 if (bSupportMode & WIRELESS_MODE_N_24G) {
2070 wireless_mode = WIRELESS_MODE_N_24G;
2071 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2072 wireless_mode = WIRELESS_MODE_N_5G;
2073 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2074 wireless_mode = WIRELESS_MODE_A;
2075 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2076 wireless_mode = WIRELESS_MODE_G;
2077 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2078 wireless_mode = WIRELESS_MODE_B;
2079 } else {
2080 RT_TRACE(COMP_ERR,
2081 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2082 __func__, bSupportMode);
2083 wireless_mode = WIRELESS_MODE_B;
2084 }
2085 }
2086 priv->ieee80211->mode = wireless_mode;
2087
2088 if (wireless_mode == WIRELESS_MODE_N_24G ||
2089 wireless_mode == WIRELESS_MODE_N_5G)
2090 priv->ieee80211->pHTInfo->bEnableHT = 1;
2091 else
2092 priv->ieee80211->pHTInfo->bEnableHT = 0;
2093 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2094 rtl8192_refresh_supportrate(priv);
2095 }
2096
2097 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2098 static int rtl8192_init_priv_variable(struct net_device *dev)
2099 {
2100 struct r8192_priv *priv = ieee80211_priv(dev);
2101 u8 i;
2102
2103 priv->card_8192 = NIC_8192U;
2104 priv->chan = 1; /* set to channel 1 */
2105 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2106 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2107 priv->ieee80211->ieee_up = 0;
2108 priv->retry_rts = DEFAULT_RETRY_RTS;
2109 priv->retry_data = DEFAULT_RETRY_DATA;
2110 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2111 priv->ieee80211->rate = 110; /* 11 mbps */
2112 priv->ieee80211->short_slot = 1;
2113 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2114 priv->CckPwEnl = 6;
2115 /* for silent reset */
2116 priv->IrpPendingCount = 1;
2117 priv->ResetProgress = RESET_TYPE_NORESET;
2118 priv->bForcedSilentReset = false;
2119 priv->bDisableNormalResetCheck = false;
2120 priv->force_reset = false;
2121
2122 /* we don't use FW read/write RF until stable firmware is available. */
2123 priv->ieee80211->FwRWRF = 0;
2124 priv->ieee80211->current_network.beacon_interval =
2125 DEFAULT_BEACONINTERVAL;
2126 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2127 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2128 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2129 IEEE_SOFTMAC_BEACONS;
2130
2131 priv->ieee80211->active_scan = 1;
2132 priv->ieee80211->modulation =
2133 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2134 priv->ieee80211->host_encrypt = 1;
2135 priv->ieee80211->host_decrypt = 1;
2136 priv->ieee80211->start_send_beacons = NULL;
2137 priv->ieee80211->stop_send_beacons = NULL;
2138 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2139 priv->ieee80211->set_chan = rtl8192_set_chan;
2140 priv->ieee80211->link_change = rtl8192_link_change;
2141 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2142 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2143 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2144 priv->ieee80211->init_wmmparam_flag = 0;
2145 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2146 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2147 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2148 priv->ieee80211->qos_support = 1;
2149
2150 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2151 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2152 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2153
2154 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2155 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2156 GetHalfNmodeSupportByAPs819xUsb;
2157 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2158
2159 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2160 priv->card_type = USB;
2161 priv->ShortRetryLimit = 0x30;
2162 priv->LongRetryLimit = 0x30;
2163 priv->EarlyRxThreshold = 7;
2164 priv->enable_gpio0 = 0;
2165 priv->TransmitConfig =
2166 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2167 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2168 /* Short retry limit */
2169 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2170 /* Long retry limit */
2171 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2172 /* FALSE: HW provides PLCP length and LENGEXT
2173 * TRUE: SW provides them
2174 */
2175 (false ? TCR_SAT : 0);
2176 priv->ReceiveConfig =
2177 /* accept management/data */
2178 RCR_AMF | RCR_ADF |
2179 /* accept control frame for SW AP needs PS-poll */
2180 RCR_ACF |
2181 /* accept BC/MC/UC */
2182 RCR_AB | RCR_AM | RCR_APM |
2183 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2184 ((u32)7 << RCR_MXDMA_OFFSET) |
2185 /* Rx FIFO Threshold, 7: No Rx threshold. */
2186 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2187 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2188
2189 priv->AcmControl = 0;
2190 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2191 if (!priv->pFirmware)
2192 return -ENOMEM;
2193
2194 /* rx related queue */
2195 skb_queue_head_init(&priv->rx_queue);
2196 skb_queue_head_init(&priv->skb_queue);
2197
2198 /* Tx related queue */
2199 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2200 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2201 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2202 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2203 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2204 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2205 priv->rf_set_chan = rtl8192_phy_SwChnl;
2206
2207 return 0;
2208 }
2209
2210 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2211 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2212 {
2213 spin_lock_init(&priv->tx_lock);
2214 spin_lock_init(&priv->irq_lock);
2215 mutex_init(&priv->wx_mutex);
2216 mutex_init(&priv->mutex);
2217 }
2218
2219 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2220
2221 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2222 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2223 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2224 static void rtl8192_init_priv_task(struct net_device *dev)
2225 {
2226 struct r8192_priv *priv = ieee80211_priv(dev);
2227
2228
2229 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2230
2231 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2232 rtl819x_watchdog_wqcallback);
2233 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2234 dm_txpower_trackingcallback);
2235 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2236 dm_rf_pathcheck_workitemcallback);
2237 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2238 rtl8192_update_beacon);
2239 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2240 InitialGainOperateWorkItemCallBack);
2241 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2242
2243 tasklet_init(&priv->irq_rx_tasklet,
2244 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2245 (unsigned long)priv);
2246 }
2247
rtl8192_get_eeprom_size(struct net_device * dev)2248 static void rtl8192_get_eeprom_size(struct net_device *dev)
2249 {
2250 u16 curCR = 0;
2251 struct r8192_priv *priv = ieee80211_priv(dev);
2252
2253 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2254 read_nic_word_E(dev, EPROM_CMD, &curCR);
2255 RT_TRACE(COMP_EPROM,
2256 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2257 /* whether need I consider BIT(5?) */
2258 priv->epromtype =
2259 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2260 RT_TRACE(COMP_EPROM,
2261 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2262 }
2263
2264 /* used to swap endian. as ntohl & htonl are not necessary
2265 * to swap endian, so use this instead.
2266 */
endian_swap(u16 * data)2267 static inline u16 endian_swap(u16 *data)
2268 {
2269 u16 tmp = *data;
2270 *data = (tmp >> 8) | (tmp << 8);
2271 return *data;
2272 }
2273
rtl8192_read_eeprom_info(struct net_device * dev)2274 static int rtl8192_read_eeprom_info(struct net_device *dev)
2275 {
2276 u16 wEPROM_ID = 0;
2277 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2278 u8 bLoad_From_EEPOM = false;
2279 struct r8192_priv *priv = ieee80211_priv(dev);
2280 u16 tmpValue = 0;
2281 int i;
2282 int ret;
2283
2284 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2285 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2286 if (ret < 0)
2287 return ret;
2288 wEPROM_ID = (u16)ret;
2289 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2290
2291 if (wEPROM_ID != RTL8190_EEPROM_ID)
2292 RT_TRACE(COMP_ERR,
2293 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2294 wEPROM_ID, RTL8190_EEPROM_ID);
2295 else
2296 bLoad_From_EEPOM = true;
2297
2298 if (bLoad_From_EEPOM) {
2299 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2300 ret = eprom_read(dev, EEPROM_VID >> 1);
2301 if (ret < 0)
2302 return ret;
2303 tmpValue = (u16)ret;
2304 priv->eeprom_vid = endian_swap(&tmpValue);
2305 ret = eprom_read(dev, EEPROM_PID >> 1);
2306 if (ret < 0)
2307 return ret;
2308 priv->eeprom_pid = (u16)ret;
2309 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1);
2310 if (ret < 0)
2311 return ret;
2312 tmpValue = (u16)ret;
2313 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2314 priv->btxpowerdata_readfromEEPORM = true;
2315 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8;
2316 if (ret < 0)
2317 return ret;
2318 priv->eeprom_CustomerID = (u16)ret;
2319 } else {
2320 priv->eeprom_vid = 0;
2321 priv->eeprom_pid = 0;
2322 priv->card_8192_version = VERSION_819XU_B;
2323 priv->eeprom_ChannelPlan = 0;
2324 priv->eeprom_CustomerID = 0;
2325 }
2326 RT_TRACE(COMP_EPROM,
2327 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2328 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2329 priv->eeprom_ChannelPlan);
2330 /* set channelplan from eeprom */
2331 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2332 if (bLoad_From_EEPOM) {
2333 int i;
2334
2335 for (i = 0; i < 6; i += 2) {
2336 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2337 if (ret < 0)
2338 return ret;
2339 *(u16 *)(&dev->dev_addr[i]) = (u16)ret;
2340 }
2341 } else {
2342 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2343 /* should I set IDR0 here? */
2344 }
2345 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2346 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2347 priv->rf_chip = RF_8256;
2348
2349 if (priv->card_8192_version == VERSION_819XU_A) {
2350 /* read Tx power gain offset of legacy OFDM to HT rate */
2351 if (bLoad_From_EEPOM) {
2352 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1));
2353 if (ret < 0)
2354 return ret;
2355 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2356 } else
2357 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER;
2358 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2359 /* read ThermalMeter from EEPROM */
2360 if (bLoad_From_EEPOM) {
2361 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1));
2362 if (ret < 0)
2363 return ret;
2364 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2365 } else
2366 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER;
2367 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2368 /* for tx power track */
2369 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2370 /* read antenna tx power offset of B/C/D to A from EEPROM */
2371 if (bLoad_From_EEPOM) {
2372 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1));
2373 if (ret < 0)
2374 return ret;
2375 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2376 } else
2377 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF;
2378 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2379 /* Read CrystalCap from EEPROM */
2380 if (bLoad_From_EEPOM) {
2381 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1));
2382 if (ret < 0)
2383 return ret;
2384 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2385 } else
2386 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP;
2387 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2388 /* get per-channel Tx power level */
2389 if (bLoad_From_EEPOM) {
2390 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1));
2391 if (ret < 0)
2392 return ret;
2393 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2394 } else
2395 priv->EEPROM_Def_Ver = 1;
2396 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2397 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2398 int i;
2399
2400 if (bLoad_From_EEPOM) {
2401 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1));
2402 if (ret < 0)
2403 return ret;
2404 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff) >> 8;
2405 } else
2406 priv->EEPROMTxPowerLevelCCK = 0x10;
2407 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2408 for (i = 0; i < 3; i++) {
2409 if (bLoad_From_EEPOM) {
2410 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1);
2411 if (ret < 0)
2412 return ret;
2413 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0)
2414 tmpValue = (u16)ret & 0x00ff;
2415 else
2416 tmpValue = ((u16)ret & 0xff00) >> 8;
2417 } else {
2418 tmpValue = 0x10;
2419 }
2420 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2421 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2422 }
2423 } else if (priv->EEPROM_Def_Ver == 1) {
2424 if (bLoad_From_EEPOM) {
2425 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1);
2426 if (ret < 0)
2427 return ret;
2428 tmpValue = ((u16)ret & 0xff00) >> 8;
2429 } else {
2430 tmpValue = 0x10;
2431 }
2432 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2433
2434 if (bLoad_From_EEPOM) {
2435 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1);
2436 if (ret < 0)
2437 return ret;
2438 tmpValue = (u16)ret;
2439 } else
2440 tmpValue = 0x1010;
2441 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2442 if (bLoad_From_EEPOM)
2443 tmpValue = eprom_read(dev,
2444 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1);
2445 else
2446 tmpValue = 0x1010;
2447 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2448 if (bLoad_From_EEPOM)
2449 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1);
2450 else
2451 tmpValue = 0x10;
2452 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2453 } /* endif EEPROM_Def_Ver == 1 */
2454
2455 /* update HAL variables */
2456 for (i = 0; i < 14; i++) {
2457 if (i <= 3)
2458 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2459 else if (i >= 4 && i <= 9)
2460 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2461 else
2462 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2463 }
2464
2465 for (i = 0; i < 14; i++) {
2466 if (priv->EEPROM_Def_Ver == 0) {
2467 if (i <= 3)
2468 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2469 else if (i >= 4 && i <= 9)
2470 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2471 else
2472 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2473 } else if (priv->EEPROM_Def_Ver == 1) {
2474 if (i <= 3)
2475 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2476 else if (i >= 4 && i <= 9)
2477 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2478 else
2479 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2480 }
2481 }
2482 priv->TxPowerDiff = priv->EEPROMPwDiff;
2483 /* Antenna B gain offset to antenna A, bit0~3 */
2484 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2485 /* Antenna C gain offset to antenna A, bit4~7 */
2486 priv->AntennaTxPwDiff[1] =
2487 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2488 /* CrystalCap, bit12~15 */
2489 priv->CrystalCap = priv->EEPROMCrystalCap;
2490 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2491 * 92U does not enable TX power tracking.
2492 */
2493 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2494 } /* end if VersionID == VERSION_819XU_A */
2495
2496 /* for dlink led */
2497 switch (priv->eeprom_CustomerID) {
2498 case EEPROM_CID_RUNTOP:
2499 priv->CustomerID = RT_CID_819x_RUNTOP;
2500 break;
2501
2502 case EEPROM_CID_DLINK:
2503 priv->CustomerID = RT_CID_DLINK;
2504 break;
2505
2506 default:
2507 priv->CustomerID = RT_CID_DEFAULT;
2508 break;
2509 }
2510
2511 switch (priv->CustomerID) {
2512 case RT_CID_819x_RUNTOP:
2513 priv->LedStrategy = SW_LED_MODE2;
2514 break;
2515
2516 case RT_CID_DLINK:
2517 priv->LedStrategy = SW_LED_MODE4;
2518 break;
2519
2520 default:
2521 priv->LedStrategy = SW_LED_MODE0;
2522 break;
2523 }
2524
2525
2526 if (priv->rf_type == RF_1T2R)
2527 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2528 else
2529 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2530
2531 /* We can only know RF type in the function. So we have to init
2532 * DIG RATR table again.
2533 */
2534 init_rate_adaptive(dev);
2535
2536 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2537
2538 return 0;
2539 }
2540
rtl8192_get_channel_map(struct net_device * dev)2541 static short rtl8192_get_channel_map(struct net_device *dev)
2542 {
2543 struct r8192_priv *priv = ieee80211_priv(dev);
2544
2545 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2546 netdev_err(dev,
2547 "rtl8180_init: Error channel plan! Set to default.\n");
2548 priv->ChannelPlan = 0;
2549 }
2550 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2551
2552 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2553 return 0;
2554 }
2555
rtl8192_init(struct net_device * dev)2556 static short rtl8192_init(struct net_device *dev)
2557 {
2558 struct r8192_priv *priv = ieee80211_priv(dev);
2559 int err;
2560
2561 memset(&(priv->stats), 0, sizeof(struct Stats));
2562 memset(priv->txqueue_to_outpipemap, 0, 9);
2563 #ifdef PIPE12
2564 {
2565 int i = 0;
2566 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2567
2568 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2569 }
2570 #else
2571 {
2572 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2573
2574 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2575 }
2576 #endif
2577 err = rtl8192_init_priv_variable(dev);
2578 if (err)
2579 return err;
2580
2581 rtl8192_init_priv_lock(priv);
2582 rtl8192_init_priv_task(dev);
2583 rtl8192_get_eeprom_size(dev);
2584 err = rtl8192_read_eeprom_info(dev);
2585 if (err) {
2586 DMESG("Reading EEPROM info failed");
2587 return err;
2588 }
2589 rtl8192_get_channel_map(dev);
2590 init_hal_dm(dev);
2591 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
2592 if (rtl8192_usb_initendpoints(dev) != 0) {
2593 DMESG("Endopoints initialization failed");
2594 return -ENOMEM;
2595 }
2596
2597 return 0;
2598 }
2599
2600 /******************************************************************************
2601 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2602 * not to do all the hw config as its name says
2603 * input: net_device dev
2604 * output: none
2605 * return: none
2606 * notice: This part need to modified according to the rate set we filtered
2607 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2608 static void rtl8192_hwconfig(struct net_device *dev)
2609 {
2610 u32 regRATR = 0, regRRSR = 0;
2611 u8 regBwOpMode = 0, regTmp = 0;
2612 struct r8192_priv *priv = ieee80211_priv(dev);
2613 u32 ratr_value = 0;
2614
2615 /* Set RRSR, RATR, and BW_OPMODE registers */
2616 switch (priv->ieee80211->mode) {
2617 case WIRELESS_MODE_B:
2618 regBwOpMode = BW_OPMODE_20MHZ;
2619 regRATR = RATE_ALL_CCK;
2620 regRRSR = RATE_ALL_CCK;
2621 break;
2622 case WIRELESS_MODE_A:
2623 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2624 regRATR = RATE_ALL_OFDM_AG;
2625 regRRSR = RATE_ALL_OFDM_AG;
2626 break;
2627 case WIRELESS_MODE_G:
2628 regBwOpMode = BW_OPMODE_20MHZ;
2629 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2630 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2631 break;
2632 case WIRELESS_MODE_AUTO:
2633 regBwOpMode = BW_OPMODE_20MHZ;
2634 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2635 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2636 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2637 break;
2638 case WIRELESS_MODE_N_24G:
2639 /* It support CCK rate by default. CCK rate will be filtered
2640 * out only when associated AP does not support it.
2641 */
2642 regBwOpMode = BW_OPMODE_20MHZ;
2643 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2644 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2645 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2646 break;
2647 case WIRELESS_MODE_N_5G:
2648 regBwOpMode = BW_OPMODE_5G;
2649 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2650 RATE_ALL_OFDM_2SS;
2651 regRRSR = RATE_ALL_OFDM_AG;
2652 break;
2653 }
2654
2655 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2656 ratr_value = regRATR;
2657 if (priv->rf_type == RF_1T2R)
2658 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2659 write_nic_dword(dev, RATR0, ratr_value);
2660 write_nic_byte(dev, UFWP, 1);
2661 read_nic_byte(dev, 0x313, ®Tmp);
2662 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2663 write_nic_dword(dev, RRSR, regRRSR);
2664
2665 /* Set Retry Limit here */
2666 write_nic_word(dev, RETRY_LIMIT,
2667 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2668 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2669 /* Set Contention Window here */
2670
2671 /* Set Tx AGC */
2672
2673 /* Set Tx Antenna including Feedback control */
2674
2675 /* Set Auto Rate fallback control */
2676 }
2677
2678
2679 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2680 static bool rtl8192_adapter_start(struct net_device *dev)
2681 {
2682 struct r8192_priv *priv = ieee80211_priv(dev);
2683 u32 dwRegRead = 0;
2684 bool init_status = true;
2685 u8 SECR_value = 0x0;
2686 u8 tmp;
2687
2688 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2689 priv->Rf_Mode = RF_OP_By_SW_3wire;
2690 /* for ASIC power on sequence */
2691 write_nic_byte_E(dev, 0x5f, 0x80);
2692 mdelay(50);
2693 write_nic_byte_E(dev, 0x5f, 0xf0);
2694 write_nic_byte_E(dev, 0x5d, 0x00);
2695 write_nic_byte_E(dev, 0x5e, 0x80);
2696 write_nic_byte(dev, 0x17, 0x37);
2697 mdelay(10);
2698 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2699 /* config CPUReset Register */
2700 /* Firmware Reset or not? */
2701 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2702 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2703 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2704 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2705 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2706 else
2707 RT_TRACE(COMP_ERR,
2708 "ERROR in %s(): undefined firmware state(%d)\n",
2709 __func__, priv->pFirmware->firmware_status);
2710
2711 write_nic_dword(dev, CPU_GEN, dwRegRead);
2712 /* config BB. */
2713 rtl8192_BBConfig(dev);
2714
2715 /* Loopback mode or not */
2716 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2717
2718 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2719 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2720 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2721 CPU_GEN_NO_LOOPBACK_SET;
2722 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2723 dwRegRead |= CPU_CCK_LOOPBACK;
2724 else
2725 RT_TRACE(COMP_ERR,
2726 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2727 __func__, priv->LoopbackMode);
2728
2729 write_nic_dword(dev, CPU_GEN, dwRegRead);
2730
2731 /* after reset cpu, we need wait for a seconds to write in register. */
2732 udelay(500);
2733
2734 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2735 read_nic_byte_E(dev, 0x5f, &tmp);
2736 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2737
2738 /* Set Hardware */
2739 rtl8192_hwconfig(dev);
2740
2741 /* turn on Tx/Rx */
2742 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2743
2744 /* set IDR0 here */
2745 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2746 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2747
2748 /* set RCR */
2749 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2750
2751 /* Initialize Number of Reserved Pages in Firmware Queue */
2752 write_nic_dword(dev, RQPN1,
2753 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2754 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2755 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2756 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2757 write_nic_dword(dev, RQPN2,
2758 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2759 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2760 write_nic_dword(dev, RQPN3,
2761 APPLIED_RESERVED_QUEUE_IN_FW |
2762 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2763 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2764
2765 /* Set AckTimeout */
2766 /* TODO: (it value is only for FPGA version). need to be changed!! */
2767 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2768
2769 if (priv->ResetProgress == RESET_TYPE_NORESET)
2770 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2771 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2772 CamResetAllEntry(dev);
2773 SECR_value |= SCR_TxEncEnable;
2774 SECR_value |= SCR_RxDecEnable;
2775 SECR_value |= SCR_NoSKMC;
2776 write_nic_byte(dev, SECR, SECR_value);
2777 }
2778
2779 /* Beacon related */
2780 write_nic_word(dev, ATIMWND, 2);
2781 write_nic_word(dev, BCN_INTERVAL, 100);
2782
2783 #define DEFAULT_EDCA 0x005e4332
2784 {
2785 int i;
2786
2787 for (i = 0; i < QOS_QUEUE_NUM; i++)
2788 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2789 }
2790
2791 rtl8192_phy_configmac(dev);
2792
2793 if (priv->card_8192_version == VERSION_819XU_A) {
2794 rtl8192_phy_getTxPower(dev);
2795 rtl8192_phy_setTxPower(dev, priv->chan);
2796 }
2797
2798 /* Firmware download */
2799 init_status = init_firmware(dev);
2800 if (!init_status) {
2801 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2802 __func__);
2803 return init_status;
2804 }
2805 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2806
2807 /* config RF. */
2808 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2809 rtl8192_phy_RFConfig(dev);
2810 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2811 }
2812
2813
2814 if (priv->ieee80211->FwRWRF)
2815 /* We can force firmware to do RF-R/W */
2816 priv->Rf_Mode = RF_OP_By_FW;
2817 else
2818 priv->Rf_Mode = RF_OP_By_SW_3wire;
2819
2820
2821 rtl8192_phy_updateInitGain(dev);
2822 /*--set CCK and OFDM Block "ON"--*/
2823 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2824 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2825
2826 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2827 /* if D or C cut */
2828 u8 tmpvalue;
2829
2830 read_nic_byte(dev, 0x301, &tmpvalue);
2831 if (tmpvalue == 0x03) {
2832 priv->bDcut = true;
2833 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2834 } else {
2835 priv->bDcut = false;
2836 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2837 }
2838 dm_initialize_txpower_tracking(dev);
2839
2840 if (priv->bDcut) {
2841 u32 i, TempCCk;
2842 u32 tmpRegA = rtl8192_QueryBBReg(dev,
2843 rOFDM0_XATxIQImbalance,
2844 bMaskDWord);
2845
2846 for (i = 0; i < TxBBGainTableLength; i++) {
2847 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2848 priv->rfa_txpowertrackingindex = (u8)i;
2849 priv->rfa_txpowertrackingindex_real =
2850 (u8)i;
2851 priv->rfa_txpowertracking_default =
2852 priv->rfa_txpowertrackingindex;
2853 break;
2854 }
2855 }
2856
2857 TempCCk = rtl8192_QueryBBReg(dev,
2858 rCCK0_TxFilter1,
2859 bMaskByte2);
2860
2861 for (i = 0; i < CCKTxBBGainTableLength; i++) {
2862 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2863 priv->cck_present_attenuation_20Mdefault = (u8)i;
2864 break;
2865 }
2866 }
2867 priv->cck_present_attenuation_40Mdefault = 0;
2868 priv->cck_present_attenuation_difference = 0;
2869 priv->cck_present_attenuation =
2870 priv->cck_present_attenuation_20Mdefault;
2871 }
2872 }
2873 write_nic_byte(dev, 0x87, 0x0);
2874
2875
2876 return init_status;
2877 }
2878
2879 /* this configures registers for beacon tx and enables it via
2880 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2881 * be used to stop beacon transmission
2882 */
2883 /***************************************************************************
2884 * -------------------------------NET STUFF---------------------------
2885 ***************************************************************************/
2886
rtl8192_stats(struct net_device * dev)2887 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
2888 {
2889 struct r8192_priv *priv = ieee80211_priv(dev);
2890
2891 return &priv->ieee80211->stats;
2892 }
2893
HalTxCheckStuck819xUsb(struct net_device * dev)2894 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
2895 {
2896 struct r8192_priv *priv = ieee80211_priv(dev);
2897 u16 RegTxCounter;
2898 bool bStuck = false;
2899
2900 read_nic_word(dev, 0x128, &RegTxCounter);
2901 RT_TRACE(COMP_RESET,
2902 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
2903 RegTxCounter, priv->TxCounter);
2904 if (priv->TxCounter == RegTxCounter)
2905 bStuck = true;
2906
2907 priv->TxCounter = RegTxCounter;
2908
2909 return bStuck;
2910 }
2911
2912 /*
2913 * <Assumption: RT_TX_SPINLOCK is acquired.>
2914 * First added: 2006.11.19 by emily
2915 */
TxCheckStuck(struct net_device * dev)2916 static RESET_TYPE TxCheckStuck(struct net_device *dev)
2917 {
2918 struct r8192_priv *priv = ieee80211_priv(dev);
2919 u8 QueueID;
2920 bool bCheckFwTxCnt = false;
2921
2922 /* Decide such threshold according to current power save mode */
2923
2924 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
2925 if (QueueID == TXCMD_QUEUE)
2926 continue;
2927 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
2928 continue;
2929
2930 bCheckFwTxCnt = true;
2931 }
2932 if (bCheckFwTxCnt) {
2933 if (HalTxCheckStuck819xUsb(dev)) {
2934 RT_TRACE(COMP_RESET,
2935 "%s: Fw indicates no Tx condition!\n",
2936 __func__);
2937 return RESET_TYPE_SILENT;
2938 }
2939 }
2940 return RESET_TYPE_NORESET;
2941 }
2942
HalRxCheckStuck819xUsb(struct net_device * dev)2943 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
2944 {
2945 u16 RegRxCounter;
2946 struct r8192_priv *priv = ieee80211_priv(dev);
2947 bool bStuck = false;
2948 static u8 rx_chk_cnt;
2949
2950 read_nic_word(dev, 0x130, &RegRxCounter);
2951 RT_TRACE(COMP_RESET,
2952 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
2953 RegRxCounter, priv->RxCounter);
2954 /* If rssi is small, we should check rx for long time because of bad rx.
2955 * or maybe it will continuous silent reset every 2 seconds.
2956 */
2957 rx_chk_cnt++;
2958 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) {
2959 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
2960 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) &&
2961 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) ||
2962 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) {
2963 if (rx_chk_cnt < 2)
2964 return bStuck;
2965
2966 rx_chk_cnt = 0;
2967 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) ||
2968 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) &&
2969 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) {
2970 if (rx_chk_cnt < 4)
2971 return bStuck;
2972
2973 rx_chk_cnt = 0;
2974 } else {
2975 if (rx_chk_cnt < 8)
2976 return bStuck;
2977
2978 rx_chk_cnt = 0;
2979 }
2980
2981 if (priv->RxCounter == RegRxCounter)
2982 bStuck = true;
2983
2984 priv->RxCounter = RegRxCounter;
2985
2986 return bStuck;
2987 }
2988
RxCheckStuck(struct net_device * dev)2989 static RESET_TYPE RxCheckStuck(struct net_device *dev)
2990 {
2991 struct r8192_priv *priv = ieee80211_priv(dev);
2992 bool bRxCheck = false;
2993
2994 if (priv->IrpPendingCount > 1)
2995 bRxCheck = true;
2996
2997 if (bRxCheck) {
2998 if (HalRxCheckStuck819xUsb(dev)) {
2999 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3000 return RESET_TYPE_SILENT;
3001 }
3002 }
3003 return RESET_TYPE_NORESET;
3004 }
3005
3006
3007 /**
3008 * This function is called by Checkforhang to check whether we should
3009 * ask OS to reset driver
3010 *
3011 * \param pAdapter The adapter context for this miniport
3012 *
3013 * Note:NIC with USB interface sholud not call this function because we
3014 * cannot scan descriptor to judge whether there is tx stuck.
3015 * Note: This function may be required to be rewrite for Vista OS.
3016 * <<<Assumption: Tx spinlock has been acquired >>>
3017 *
3018 * 8185 and 8185b does not implement this function.
3019 */
rtl819x_ifcheck_resetornot(struct net_device * dev)3020 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3021 {
3022 struct r8192_priv *priv = ieee80211_priv(dev);
3023 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3024 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3025 RT_RF_POWER_STATE rfState;
3026
3027 rfState = priv->ieee80211->eRFPowerState;
3028
3029 TxResetType = TxCheckStuck(dev);
3030 if (rfState != eRfOff ||
3031 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3032 /* If driver is in the status of firmware download failure,
3033 * driver skips RF initialization and RF is in turned off
3034 * state. Driver should check whether Rx stuck and do silent
3035 * reset. And if driver is in firmware download failure status,
3036 * driver should initialize RF in the following silent reset
3037 * procedure
3038 *
3039 * Driver should not check RX stuck in IBSS mode because it is
3040 * required to set Check BSSID in order to send beacon,
3041 * however, if check BSSID is set, STA cannot hear any packet
3042 * at all.
3043 */
3044 RxResetType = RxCheckStuck(dev);
3045 }
3046 if (TxResetType == RESET_TYPE_NORMAL ||
3047 RxResetType == RESET_TYPE_NORMAL) {
3048 return RESET_TYPE_NORMAL;
3049 } else if (TxResetType == RESET_TYPE_SILENT ||
3050 RxResetType == RESET_TYPE_SILENT) {
3051 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3052 return RESET_TYPE_SILENT;
3053 } else {
3054 return RESET_TYPE_NORESET;
3055 }
3056 }
3057
3058 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3059 static int _rtl8192_up(struct net_device *dev);
3060 static int rtl8192_close(struct net_device *dev);
3061
3062
3063
CamRestoreAllEntry(struct net_device * dev)3064 static void CamRestoreAllEntry(struct net_device *dev)
3065 {
3066 u8 EntryId = 0;
3067 struct r8192_priv *priv = ieee80211_priv(dev);
3068 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3069
3070 static u8 CAM_CONST_ADDR[4][6] = {
3071 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3072 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3073 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3074 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3075 static u8 CAM_CONST_BROAD[] = {
3076 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3077
3078 RT_TRACE(COMP_SEC, "%s:\n", __func__);
3079
3080
3081 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3082 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3083 for (EntryId = 0; EntryId < 4; EntryId++) {
3084 MacAddr = CAM_CONST_ADDR[EntryId];
3085 setKey(dev, EntryId, EntryId,
3086 priv->ieee80211->pairwise_key_type,
3087 MacAddr, 0, NULL);
3088 }
3089
3090 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
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 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3098 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3099 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3100 (u8 *)dev->dev_addr, 0, NULL);
3101 else
3102 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3103 MacAddr, 0, NULL);
3104 }
3105
3106
3107
3108 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3109 MacAddr = CAM_CONST_BROAD;
3110 for (EntryId = 1; EntryId < 4; EntryId++) {
3111 setKey(dev, EntryId, EntryId,
3112 priv->ieee80211->group_key_type,
3113 MacAddr, 0, NULL);
3114 }
3115 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3116 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3117 CAM_CONST_ADDR[0], 0, NULL);
3118 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3119 MacAddr = CAM_CONST_BROAD;
3120 for (EntryId = 1; EntryId < 4; EntryId++) {
3121 setKey(dev, EntryId, EntryId,
3122 priv->ieee80211->group_key_type,
3123 MacAddr, 0, NULL);
3124 }
3125
3126 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3127 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3128 CAM_CONST_ADDR[0], 0, NULL);
3129 }
3130 }
3131
3132 /* This function is used to fix Tx/Rx stop bug temporarily.
3133 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3134 * The method checking Tx/Rx stuck of this function is supported by FW,
3135 * which reports Tx and Rx counter to register 0x128 and 0x130.
3136 */
rtl819x_ifsilentreset(struct net_device * dev)3137 static void rtl819x_ifsilentreset(struct net_device *dev)
3138 {
3139 struct r8192_priv *priv = ieee80211_priv(dev);
3140 u8 reset_times = 0;
3141 int reset_status = 0;
3142 struct ieee80211_device *ieee = priv->ieee80211;
3143
3144
3145 /* If we need to check CCK stop, please uncomment this line. */
3146 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3147
3148 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3149 RESET_START:
3150
3151 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3152
3153 /* Set the variable for reset. */
3154 priv->ResetProgress = RESET_TYPE_SILENT;
3155 mutex_lock(&priv->wx_mutex);
3156 if (priv->up == 0) {
3157 RT_TRACE(COMP_ERR,
3158 "%s():the driver is not up! return\n",
3159 __func__);
3160 mutex_unlock(&priv->wx_mutex);
3161 return;
3162 }
3163 priv->up = 0;
3164 RT_TRACE(COMP_RESET,
3165 "%s():======>start to down the driver\n",
3166 __func__);
3167
3168 rtl8192_rtx_disable(dev);
3169 rtl8192_cancel_deferred_work(priv);
3170 deinit_hal_dm(dev);
3171 del_timer_sync(&priv->watch_dog_timer);
3172
3173 ieee->sync_scan_hurryup = 1;
3174 if (ieee->state == IEEE80211_LINKED) {
3175 mutex_lock(&ieee->wx_mutex);
3176 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3177 ieee80211_stop_send_beacons(priv->ieee80211);
3178 del_timer_sync(&ieee->associate_timer);
3179 cancel_delayed_work(&ieee->associate_retry_wq);
3180 ieee80211_stop_scan(ieee);
3181 netif_carrier_off(dev);
3182 mutex_unlock(&ieee->wx_mutex);
3183 } else {
3184 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3185 ieee80211_softmac_stop_protocol(priv->ieee80211);
3186 }
3187 mutex_unlock(&priv->wx_mutex);
3188 RT_TRACE(COMP_RESET,
3189 "%s():<==========down process is finished\n",
3190 __func__);
3191 RT_TRACE(COMP_RESET,
3192 "%s():===========>start up the driver\n",
3193 __func__);
3194 reset_status = _rtl8192_up(dev);
3195
3196 RT_TRACE(COMP_RESET,
3197 "%s():<===========up process is finished\n",
3198 __func__);
3199 if (reset_status == -EAGAIN) {
3200 if (reset_times < 3) {
3201 reset_times++;
3202 goto RESET_START;
3203 } else {
3204 RT_TRACE(COMP_ERR,
3205 " ERR!!! %s(): Reset Failed!!\n",
3206 __func__);
3207 }
3208 }
3209 ieee->is_silent_reset = 1;
3210 EnableHWSecurityConfig8192(dev);
3211 if (ieee->state == IEEE80211_LINKED &&
3212 ieee->iw_mode == IW_MODE_INFRA) {
3213 ieee->set_chan(ieee->dev,
3214 ieee->current_network.channel);
3215
3216 queue_work(ieee->wq, &ieee->associate_complete_wq);
3217
3218 } else if (ieee->state == IEEE80211_LINKED &&
3219 ieee->iw_mode == IW_MODE_ADHOC) {
3220 ieee->set_chan(ieee->dev,
3221 ieee->current_network.channel);
3222 ieee->link_change(ieee->dev);
3223
3224 ieee80211_start_send_beacons(ieee);
3225
3226 if (ieee->data_hard_resume)
3227 ieee->data_hard_resume(ieee->dev);
3228 netif_carrier_on(ieee->dev);
3229 }
3230
3231 CamRestoreAllEntry(dev);
3232
3233 priv->ResetProgress = RESET_TYPE_NORESET;
3234 priv->reset_count++;
3235
3236 priv->bForcedSilentReset = false;
3237 priv->bResetInProgress = false;
3238
3239 /* For test --> force write UFWP. */
3240 write_nic_byte(dev, UFWP, 1);
3241 RT_TRACE(COMP_RESET,
3242 "Reset finished!! ====>[%d]\n",
3243 priv->reset_count);
3244 }
3245 }
3246
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3247 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3248 u32 *TotalRxDataNum)
3249 {
3250 u16 SlotIndex;
3251 u8 i;
3252
3253 *TotalRxBcnNum = 0;
3254 *TotalRxDataNum = 0;
3255
3256 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3257 (priv->ieee80211->LinkDetectInfo.SlotNum);
3258 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3259 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3260 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3261 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3262 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3263 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3264 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3265 }
3266 }
3267
3268
rtl819x_watchdog_wqcallback(struct work_struct * work)3269 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3270 {
3271 struct delayed_work *dwork = to_delayed_work(work);
3272 struct r8192_priv *priv = container_of(dwork,
3273 struct r8192_priv, watch_dog_wq);
3274 struct net_device *dev = priv->ieee80211->dev;
3275 struct ieee80211_device *ieee = priv->ieee80211;
3276 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3277 static u8 check_reset_cnt;
3278 bool bBusyTraffic = false;
3279 u32 TotalRxBcnNum = 0;
3280 u32 TotalRxDataNum = 0;
3281
3282 if (!priv->up)
3283 return;
3284 hal_dm_watchdog(dev);
3285
3286 /* to get busy traffic condition */
3287 if (ieee->state == IEEE80211_LINKED) {
3288 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3289 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3290 bBusyTraffic = true;
3291 }
3292 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3293 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3294 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3295 }
3296 /* for AP roaming */
3297 if (priv->ieee80211->state == IEEE80211_LINKED &&
3298 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3299 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3300 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3301 #ifdef TODO
3302 if (rfState == eRfOff)
3303 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3304 #endif
3305 netdev_dbg(dev,
3306 "===>%s(): AP is power off, connect another one\n",
3307 __func__);
3308 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3309 notify_wx_assoc_event(priv->ieee80211);
3310 RemovePeerTS(priv->ieee80211,
3311 priv->ieee80211->current_network.bssid);
3312 priv->ieee80211->link_change(dev);
3313 queue_work(priv->ieee80211->wq,
3314 &priv->ieee80211->associate_procedure_wq);
3315 }
3316 }
3317 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3318 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3319 /* check if reset the driver */
3320 if (check_reset_cnt++ >= 3) {
3321 ResetType = rtl819x_ifcheck_resetornot(dev);
3322 check_reset_cnt = 3;
3323 }
3324 /* This is control by OID set in Pomelo */
3325 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3326 (priv->bForcedSilentReset ||
3327 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3328 RT_TRACE(COMP_RESET,
3329 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3330 __func__, priv->force_reset, priv->ResetProgress,
3331 priv->bForcedSilentReset,
3332 priv->bDisableNormalResetCheck, ResetType);
3333 rtl819x_ifsilentreset(dev);
3334 }
3335 priv->force_reset = false;
3336 priv->bForcedSilentReset = false;
3337 priv->bResetInProgress = false;
3338 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3339 }
3340
watch_dog_timer_callback(struct timer_list * t)3341 static void watch_dog_timer_callback(struct timer_list *t)
3342 {
3343 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
3344
3345 schedule_delayed_work(&priv->watch_dog_wq, 0);
3346 mod_timer(&priv->watch_dog_timer,
3347 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3348 }
3349
_rtl8192_up(struct net_device * dev)3350 static int _rtl8192_up(struct net_device *dev)
3351 {
3352 struct r8192_priv *priv = ieee80211_priv(dev);
3353 int init_status = 0;
3354
3355 priv->up = 1;
3356 priv->ieee80211->ieee_up = 1;
3357 RT_TRACE(COMP_INIT, "Bringing up iface");
3358 init_status = rtl8192_adapter_start(dev);
3359 if (!init_status) {
3360 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3361 __func__);
3362 priv->up = priv->ieee80211->ieee_up = 0;
3363 return -EAGAIN;
3364 }
3365 RT_TRACE(COMP_INIT, "start adapter finished\n");
3366 rtl8192_rx_enable(dev);
3367 if (priv->ieee80211->state != IEEE80211_LINKED)
3368 ieee80211_softmac_start_protocol(priv->ieee80211);
3369 ieee80211_reset_queue(priv->ieee80211);
3370 watch_dog_timer_callback(&priv->watch_dog_timer);
3371 if (!netif_queue_stopped(dev))
3372 netif_start_queue(dev);
3373 else
3374 netif_wake_queue(dev);
3375
3376 return 0;
3377 }
3378
3379
rtl8192_open(struct net_device * dev)3380 static int rtl8192_open(struct net_device *dev)
3381 {
3382 struct r8192_priv *priv = ieee80211_priv(dev);
3383 int ret;
3384
3385 mutex_lock(&priv->wx_mutex);
3386 ret = rtl8192_up(dev);
3387 mutex_unlock(&priv->wx_mutex);
3388 return ret;
3389 }
3390
3391
rtl8192_up(struct net_device * dev)3392 int rtl8192_up(struct net_device *dev)
3393 {
3394 struct r8192_priv *priv = ieee80211_priv(dev);
3395
3396 if (priv->up == 1)
3397 return -1;
3398
3399 return _rtl8192_up(dev);
3400 }
3401
3402
rtl8192_close(struct net_device * dev)3403 static int rtl8192_close(struct net_device *dev)
3404 {
3405 struct r8192_priv *priv = ieee80211_priv(dev);
3406 int ret;
3407
3408 mutex_lock(&priv->wx_mutex);
3409
3410 ret = rtl8192_down(dev);
3411
3412 mutex_unlock(&priv->wx_mutex);
3413
3414 return ret;
3415 }
3416
rtl8192_down(struct net_device * dev)3417 int rtl8192_down(struct net_device *dev)
3418 {
3419 struct r8192_priv *priv = ieee80211_priv(dev);
3420 int i;
3421
3422 if (priv->up == 0)
3423 return -1;
3424
3425 priv->up = 0;
3426 priv->ieee80211->ieee_up = 0;
3427 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3428 /* FIXME */
3429 if (!netif_queue_stopped(dev))
3430 netif_stop_queue(dev);
3431
3432 rtl8192_rtx_disable(dev);
3433
3434 /* Tx related queue release */
3435 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3436 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3437 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3438 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3439
3440 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3441 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3442
3443 /* as cancel_delayed_work will del work->timer, so if work is not
3444 * defined as struct delayed_work, it will corrupt
3445 */
3446 rtl8192_cancel_deferred_work(priv);
3447 deinit_hal_dm(dev);
3448 del_timer_sync(&priv->watch_dog_timer);
3449
3450
3451 ieee80211_softmac_stop_protocol(priv->ieee80211);
3452 memset(&priv->ieee80211->current_network, 0,
3453 offsetof(struct ieee80211_network, list));
3454 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3455
3456 return 0;
3457 }
3458
3459
rtl8192_commit(struct net_device * dev)3460 void rtl8192_commit(struct net_device *dev)
3461 {
3462 struct r8192_priv *priv = ieee80211_priv(dev);
3463 int reset_status = 0;
3464
3465 if (priv->up == 0)
3466 return;
3467 priv->up = 0;
3468
3469 rtl8192_cancel_deferred_work(priv);
3470 del_timer_sync(&priv->watch_dog_timer);
3471
3472 ieee80211_softmac_stop_protocol(priv->ieee80211);
3473
3474 rtl8192_rtx_disable(dev);
3475 reset_status = _rtl8192_up(dev);
3476 }
3477
rtl8192_restart(struct work_struct * work)3478 static void rtl8192_restart(struct work_struct *work)
3479 {
3480 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3481 reset_wq);
3482 struct net_device *dev = priv->ieee80211->dev;
3483
3484 mutex_lock(&priv->wx_mutex);
3485
3486 rtl8192_commit(dev);
3487
3488 mutex_unlock(&priv->wx_mutex);
3489 }
3490
r8192_set_multicast(struct net_device * dev)3491 static void r8192_set_multicast(struct net_device *dev)
3492 {
3493 struct r8192_priv *priv = ieee80211_priv(dev);
3494 short promisc;
3495
3496 /* FIXME FIXME */
3497
3498 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3499
3500 if (promisc != priv->promisc)
3501
3502 priv->promisc = promisc;
3503 }
3504
3505
r8192_set_mac_adr(struct net_device * dev,void * mac)3506 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3507 {
3508 struct r8192_priv *priv = ieee80211_priv(dev);
3509 struct sockaddr *addr = mac;
3510
3511 mutex_lock(&priv->wx_mutex);
3512
3513 ether_addr_copy(dev->dev_addr, addr->sa_data);
3514
3515 schedule_work(&priv->reset_wq);
3516 mutex_unlock(&priv->wx_mutex);
3517
3518 return 0;
3519 }
3520
3521 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3522 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3523 {
3524 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3525 struct iwreq *wrq = (struct iwreq *)rq;
3526 int ret = -1;
3527 struct ieee80211_device *ieee = priv->ieee80211;
3528 u32 key[4];
3529 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3530 struct iw_point *p = &wrq->u.data;
3531 struct ieee_param *ipw = NULL;
3532
3533 mutex_lock(&priv->wx_mutex);
3534
3535
3536 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3537 ret = -EINVAL;
3538 goto out;
3539 }
3540
3541 ipw = memdup_user(p->pointer, p->length);
3542 if (IS_ERR(ipw)) {
3543 ret = PTR_ERR(ipw);
3544 goto out;
3545 }
3546
3547 switch (cmd) {
3548 case RTL_IOCTL_WPA_SUPPLICANT:
3549 /* parse here for HW security */
3550 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3551 if (ipw->u.crypt.set_tx) {
3552 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3553 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3554 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3555 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3556 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3557 if (ipw->u.crypt.key_len == 13)
3558 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3559 else if (ipw->u.crypt.key_len == 5)
3560 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3561 } else {
3562 ieee->pairwise_key_type = KEY_TYPE_NA;
3563 }
3564
3565 if (ieee->pairwise_key_type) {
3566 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3567 EnableHWSecurityConfig8192(dev);
3568 /* We fill both index entry and 4th
3569 * entry for pairwise key as in IPW
3570 * interface, adhoc will only get here,
3571 * so we need index entry for its
3572 * default key serching!
3573 */
3574 setKey(dev, 4, ipw->u.crypt.idx,
3575 ieee->pairwise_key_type,
3576 (u8 *)ieee->ap_mac_addr,
3577 0, key);
3578 if (ieee->auth_mode != 2)
3579 setKey(dev, ipw->u.crypt.idx,
3580 ipw->u.crypt.idx,
3581 ieee->pairwise_key_type,
3582 (u8 *)ieee->ap_mac_addr,
3583 0, key);
3584 }
3585 } else {
3586 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3587 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3588 ieee->group_key_type = KEY_TYPE_CCMP;
3589 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3590 ieee->group_key_type = KEY_TYPE_TKIP;
3591 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3592 if (ipw->u.crypt.key_len == 13)
3593 ieee->group_key_type = KEY_TYPE_WEP104;
3594 else if (ipw->u.crypt.key_len == 5)
3595 ieee->group_key_type = KEY_TYPE_WEP40;
3596 } else {
3597 ieee->group_key_type = KEY_TYPE_NA;
3598 }
3599
3600 if (ieee->group_key_type) {
3601 setKey(dev, ipw->u.crypt.idx,
3602 /* KeyIndex */
3603 ipw->u.crypt.idx,
3604 /* KeyType */
3605 ieee->group_key_type,
3606 /* MacAddr */
3607 broadcast_addr,
3608 /* DefaultKey */
3609 0,
3610 /* KeyContent */
3611 key);
3612 }
3613 }
3614 }
3615 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3616 &wrq->u.data);
3617 break;
3618
3619 default:
3620 ret = -EOPNOTSUPP;
3621 break;
3622 }
3623 kfree(ipw);
3624 ipw = NULL;
3625 out:
3626 mutex_unlock(&priv->wx_mutex);
3627 return ret;
3628 }
3629
HwRateToMRate90(bool bIsHT,u8 rate)3630 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3631 {
3632 u8 ret_rate = 0xff;
3633
3634 if (!bIsHT) {
3635 switch (rate) {
3636 case DESC90_RATE1M:
3637 ret_rate = MGN_1M;
3638 break;
3639 case DESC90_RATE2M:
3640 ret_rate = MGN_2M;
3641 break;
3642 case DESC90_RATE5_5M:
3643 ret_rate = MGN_5_5M;
3644 break;
3645 case DESC90_RATE11M:
3646 ret_rate = MGN_11M;
3647 break;
3648 case DESC90_RATE6M:
3649 ret_rate = MGN_6M;
3650 break;
3651 case DESC90_RATE9M:
3652 ret_rate = MGN_9M;
3653 break;
3654 case DESC90_RATE12M:
3655 ret_rate = MGN_12M;
3656 break;
3657 case DESC90_RATE18M:
3658 ret_rate = MGN_18M;
3659 break;
3660 case DESC90_RATE24M:
3661 ret_rate = MGN_24M;
3662 break;
3663 case DESC90_RATE36M:
3664 ret_rate = MGN_36M;
3665 break;
3666 case DESC90_RATE48M:
3667 ret_rate = MGN_48M;
3668 break;
3669 case DESC90_RATE54M:
3670 ret_rate = MGN_54M;
3671 break;
3672
3673 default:
3674 ret_rate = 0xff;
3675 RT_TRACE(COMP_RECV,
3676 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3677 __func__, rate, bIsHT);
3678 break;
3679 }
3680
3681 } else {
3682 switch (rate) {
3683 case DESC90_RATEMCS0:
3684 ret_rate = MGN_MCS0;
3685 break;
3686 case DESC90_RATEMCS1:
3687 ret_rate = MGN_MCS1;
3688 break;
3689 case DESC90_RATEMCS2:
3690 ret_rate = MGN_MCS2;
3691 break;
3692 case DESC90_RATEMCS3:
3693 ret_rate = MGN_MCS3;
3694 break;
3695 case DESC90_RATEMCS4:
3696 ret_rate = MGN_MCS4;
3697 break;
3698 case DESC90_RATEMCS5:
3699 ret_rate = MGN_MCS5;
3700 break;
3701 case DESC90_RATEMCS6:
3702 ret_rate = MGN_MCS6;
3703 break;
3704 case DESC90_RATEMCS7:
3705 ret_rate = MGN_MCS7;
3706 break;
3707 case DESC90_RATEMCS8:
3708 ret_rate = MGN_MCS8;
3709 break;
3710 case DESC90_RATEMCS9:
3711 ret_rate = MGN_MCS9;
3712 break;
3713 case DESC90_RATEMCS10:
3714 ret_rate = MGN_MCS10;
3715 break;
3716 case DESC90_RATEMCS11:
3717 ret_rate = MGN_MCS11;
3718 break;
3719 case DESC90_RATEMCS12:
3720 ret_rate = MGN_MCS12;
3721 break;
3722 case DESC90_RATEMCS13:
3723 ret_rate = MGN_MCS13;
3724 break;
3725 case DESC90_RATEMCS14:
3726 ret_rate = MGN_MCS14;
3727 break;
3728 case DESC90_RATEMCS15:
3729 ret_rate = MGN_MCS15;
3730 break;
3731 case DESC90_RATEMCS32:
3732 ret_rate = 0x80 | 0x20;
3733 break;
3734
3735 default:
3736 ret_rate = 0xff;
3737 RT_TRACE(COMP_RECV,
3738 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3739 __func__, rate, bIsHT);
3740 break;
3741 }
3742 }
3743
3744 return ret_rate;
3745 }
3746
3747 /**
3748 * Function: UpdateRxPktTimeStamp
3749 * Overview: Record the TSF time stamp when receiving a packet
3750 *
3751 * Input:
3752 * PADAPTER Adapter
3753 * PRT_RFD pRfd,
3754 *
3755 * Output:
3756 * PRT_RFD pRfd
3757 * (pRfd->Status.TimeStampHigh is updated)
3758 * (pRfd->Status.TimeStampLow is updated)
3759 * Return:
3760 * None
3761 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3762 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3763 struct ieee80211_rx_stats *stats)
3764 {
3765 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3766
3767 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3768 stats->mac_time[0] = priv->LastRxDescTSFLow;
3769 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3770 } else {
3771 priv->LastRxDescTSFLow = stats->mac_time[0];
3772 priv->LastRxDescTSFHigh = stats->mac_time[1];
3773 }
3774 }
3775
3776 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3777 static long rtl819x_translate_todbm(u8 signal_strength_index)
3778 {
3779 long signal_power; /* in dBm. */
3780
3781 /* Translate to dBm (x=0.5y-95). */
3782 signal_power = (long)((signal_strength_index + 1) >> 1);
3783 signal_power -= 95;
3784
3785 return signal_power;
3786 }
3787
3788
3789 /* We can not declare RSSI/EVM total value of sliding window to
3790 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3791 * value will be kept in memory or disk. Declare the value in the adaptor
3792 * and it will be reinitialized when returned from S3/S4.
3793 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3794 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3795 struct ieee80211_rx_stats *pprevious_stats,
3796 struct ieee80211_rx_stats *pcurrent_stats)
3797 {
3798 bool bcheck = false;
3799 u8 rfpath;
3800 u32 nspatial_stream, tmp_val;
3801 static u32 slide_rssi_index, slide_rssi_statistics;
3802 static u32 slide_evm_index, slide_evm_statistics;
3803 static u32 last_rssi, last_evm;
3804
3805 static u32 slide_beacon_adc_pwdb_index;
3806 static u32 slide_beacon_adc_pwdb_statistics;
3807 static u32 last_beacon_adc_pwdb;
3808
3809 struct rtl_80211_hdr_3addr *hdr;
3810 u16 sc;
3811 unsigned int seq;
3812
3813 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3814 sc = le16_to_cpu(hdr->seq_ctl);
3815 seq = WLAN_GET_SEQ_SEQ(sc);
3816 /* to record the sequence number */
3817 pcurrent_stats->Seq_Num = seq;
3818
3819 /* Check whether we should take the previous packet into accounting */
3820 if (!pprevious_stats->bIsAMPDU) {
3821 /* if previous packet is not aggregated packet */
3822 bcheck = true;
3823 }
3824
3825 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3826 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3827 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3828 priv->stats.slide_rssi_total -= last_rssi;
3829 }
3830 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3831
3832 priv->stats.slide_signal_strength[slide_rssi_index++] =
3833 pprevious_stats->SignalStrength;
3834 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3835 slide_rssi_index = 0;
3836
3837 /* <1> Showed on UI for user, in dbm */
3838 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3839 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3840 pcurrent_stats->rssi = priv->stats.signal_strength;
3841
3842 /* If the previous packet does not match the criteria, neglect it */
3843 if (!pprevious_stats->bPacketMatchBSSID) {
3844 if (!pprevious_stats->bToSelfBA)
3845 return;
3846 }
3847
3848 if (!bcheck)
3849 return;
3850
3851
3852 /* only rtl8190 supported
3853 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3854 */
3855
3856 /* Check RSSI */
3857 priv->stats.num_process_phyinfo++;
3858
3859 /* record the general signal strength to the sliding window. */
3860
3861
3862 /* <2> Showed on UI for engineering
3863 * hardware does not provide rssi information for each rf path in CCK
3864 */
3865 if (!pprevious_stats->bIsCCK &&
3866 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3867 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3868 if (!rtl8192_phy_CheckIsLegalRFPath(
3869 priv->ieee80211->dev, rfpath))
3870 continue;
3871
3872 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3873 priv->stats.rx_rssi_percentage[rfpath] =
3874 pprevious_stats->RxMIMOSignalStrength[rfpath];
3875 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
3876 priv->stats.rx_rssi_percentage[rfpath] =
3877 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3878 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3879 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
3880 } else {
3881 priv->stats.rx_rssi_percentage[rfpath] =
3882 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3883 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3884 }
3885 RT_TRACE(COMP_DBG,
3886 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
3887 priv->stats.rx_rssi_percentage[rfpath]);
3888 }
3889 }
3890
3891
3892 /* Check PWDB. */
3893 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3894 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3895 pprevious_stats->RxPWDBAll);
3896
3897 if (pprevious_stats->bPacketBeacon) {
3898 /* record the beacon pwdb to the sliding window. */
3899 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
3900 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
3901 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
3902 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
3903 }
3904 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
3905 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
3906 slide_beacon_adc_pwdb_index++;
3907 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
3908 slide_beacon_adc_pwdb_index = 0;
3909 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
3910 if (pprevious_stats->RxPWDBAll >= 3)
3911 pprevious_stats->RxPWDBAll -= 3;
3912 }
3913
3914 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3915 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3916 pprevious_stats->RxPWDBAll);
3917
3918
3919 if (pprevious_stats->bPacketToSelf ||
3920 pprevious_stats->bPacketBeacon ||
3921 pprevious_stats->bToSelfBA) {
3922 if (priv->undecorated_smoothed_pwdb < 0)
3923 /* initialize */
3924 priv->undecorated_smoothed_pwdb =
3925 pprevious_stats->RxPWDBAll;
3926 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
3927 priv->undecorated_smoothed_pwdb =
3928 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3929 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3930 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
3931 } else {
3932 priv->undecorated_smoothed_pwdb =
3933 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3934 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3935 }
3936 }
3937
3938 /* Check EVM */
3939 /* record the general EVM to the sliding window. */
3940 if (pprevious_stats->SignalQuality) {
3941 if (pprevious_stats->bPacketToSelf ||
3942 pprevious_stats->bPacketBeacon ||
3943 pprevious_stats->bToSelfBA) {
3944 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3945 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
3946 last_evm = priv->stats.slide_evm[slide_evm_index];
3947 priv->stats.slide_evm_total -= last_evm;
3948 }
3949
3950 priv->stats.slide_evm_total +=
3951 pprevious_stats->SignalQuality;
3952
3953 priv->stats.slide_evm[slide_evm_index++] =
3954 pprevious_stats->SignalQuality;
3955 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
3956 slide_evm_index = 0;
3957
3958 /* <1> Showed on UI for user, in percentage. */
3959 tmp_val = priv->stats.slide_evm_total /
3960 slide_evm_statistics;
3961 priv->stats.signal_quality = tmp_val;
3962 /* Showed on UI for user in Windows Vista,
3963 * for Link quality.
3964 */
3965 priv->stats.last_signal_strength_inpercent = tmp_val;
3966 }
3967
3968 /* <2> Showed on UI for engineering */
3969 if (pprevious_stats->bPacketToSelf ||
3970 pprevious_stats->bPacketBeacon ||
3971 pprevious_stats->bToSelfBA) {
3972 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
3973 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
3974 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
3975 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
3976 priv->stats.rx_evm_percentage[nspatial_stream] =
3977 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) +
3978 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR);
3979 }
3980 }
3981 }
3982 }
3983 }
3984
3985 /*-----------------------------------------------------------------------------
3986 * Function: rtl819x_query_rxpwrpercentage()
3987 *
3988 * Overview:
3989 *
3990 * Input: char antpower
3991 *
3992 * Output: NONE
3993 *
3994 * Return: 0-100 percentage
3995 *---------------------------------------------------------------------------
3996 */
rtl819x_query_rxpwrpercentage(s8 antpower)3997 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
3998 {
3999 if ((antpower <= -100) || (antpower >= 20))
4000 return 0;
4001 else if (antpower >= 0)
4002 return 100;
4003 else
4004 return 100 + antpower;
4005
4006 } /* QueryRxPwrPercentage */
4007
rtl819x_evm_dbtopercentage(s8 value)4008 static u8 rtl819x_evm_dbtopercentage(s8 value)
4009 {
4010 s8 ret_val;
4011
4012 ret_val = value;
4013
4014 if (ret_val >= 0)
4015 ret_val = 0;
4016 if (ret_val <= -33)
4017 ret_val = -33;
4018 ret_val = 0 - ret_val;
4019 ret_val *= 3;
4020 if (ret_val == 99)
4021 ret_val = 100;
4022 return ret_val;
4023 }
4024
4025 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)4026 static long rtl819x_signal_scale_mapping(long currsig)
4027 {
4028 long retsig;
4029
4030 /* Step 1. Scale mapping. */
4031 if (currsig >= 61 && currsig <= 100)
4032 retsig = 90 + ((currsig - 60) / 4);
4033 else if (currsig >= 41 && currsig <= 60)
4034 retsig = 78 + ((currsig - 40) / 2);
4035 else if (currsig >= 31 && currsig <= 40)
4036 retsig = 66 + (currsig - 30);
4037 else if (currsig >= 21 && currsig <= 30)
4038 retsig = 54 + (currsig - 20);
4039 else if (currsig >= 5 && currsig <= 20)
4040 retsig = 42 + (((currsig - 5) * 2) / 3);
4041 else if (currsig == 4)
4042 retsig = 36;
4043 else if (currsig == 3)
4044 retsig = 27;
4045 else if (currsig == 2)
4046 retsig = 18;
4047 else if (currsig == 1)
4048 retsig = 9;
4049 else
4050 retsig = currsig;
4051
4052 return retsig;
4053 }
4054
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)4055 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4056 {
4057 if (pdrvinfo->RxHT)
4058 return false;
4059
4060 switch (pdrvinfo->RxRate) {
4061 case DESC90_RATE1M:
4062 case DESC90_RATE2M:
4063 case DESC90_RATE5_5M:
4064 case DESC90_RATE11M:
4065 return true;
4066 default:
4067 return false;
4068 }
4069 }
4070
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)4071 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4072 struct ieee80211_rx_stats *pstats,
4073 struct rx_drvinfo_819x_usb *pdrvinfo,
4074 struct ieee80211_rx_stats *precord_stats,
4075 bool bpacket_match_bssid,
4076 bool bpacket_toself,
4077 bool bPacketBeacon,
4078 bool bToSelfBA)
4079 {
4080 phy_sts_ofdm_819xusb_t *pofdm_buf;
4081 phy_sts_cck_819xusb_t *pcck_buf;
4082 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4083 u8 *prxpkt;
4084 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4085 s8 rx_pwr[4], rx_pwr_all = 0;
4086 s8 rx_snrX, rx_evmX;
4087 u8 evm, pwdb_all;
4088 u32 RSSI, total_rssi = 0;
4089 u8 is_cck_rate = 0;
4090 u8 rf_rx_num = 0;
4091 u8 sq;
4092
4093
4094 priv->stats.numqry_phystatus++;
4095
4096 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4097
4098 /* Record it for next packet processing */
4099 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4100 pstats->bPacketMatchBSSID =
4101 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4102 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4103 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4104 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4105 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4106
4107 prxpkt = (u8 *)pdrvinfo;
4108
4109 /* Move pointer to the 16th bytes. Phy status start address. */
4110 prxpkt += sizeof(struct rx_drvinfo_819x_usb);
4111
4112 /* Initial the cck and ofdm buffer pointer */
4113 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4114 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4115
4116 pstats->RxMIMOSignalQuality[0] = -1;
4117 pstats->RxMIMOSignalQuality[1] = -1;
4118 precord_stats->RxMIMOSignalQuality[0] = -1;
4119 precord_stats->RxMIMOSignalQuality[1] = -1;
4120
4121 if (is_cck_rate) {
4122 /* (1)Hardware does not provide RSSI for CCK */
4123
4124 /* (2)PWDB, Average PWDB calculated by hardware
4125 * (for rate adaptive)
4126 */
4127 u8 report;
4128
4129 priv->stats.numqry_phystatusCCK++;
4130
4131 if (!priv->bCckHighPower) {
4132 report = pcck_buf->cck_agc_rpt & 0xc0;
4133 report >>= 6;
4134 switch (report) {
4135 case 0x3:
4136 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4137 break;
4138 case 0x2:
4139 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4140 break;
4141 case 0x1:
4142 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4143 break;
4144 case 0x0:
4145 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4146 break;
4147 }
4148 } else {
4149 report = pcck_buf->cck_agc_rpt & 0x60;
4150 report >>= 5;
4151 switch (report) {
4152 case 0x3:
4153 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4154 break;
4155 case 0x2:
4156 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4157 break;
4158 case 0x1:
4159 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4160 break;
4161 case 0x0:
4162 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4163 break;
4164 }
4165 }
4166
4167 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4168 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4169 pstats->RecvSignalPower = pwdb_all;
4170
4171 /* (3) Get Signal Quality (EVM) */
4172
4173 if (pstats->RxPWDBAll > 40) {
4174 sq = 100;
4175 } else {
4176 sq = pcck_buf->sq_rpt;
4177
4178 if (pcck_buf->sq_rpt > 64)
4179 sq = 0;
4180 else if (pcck_buf->sq_rpt < 20)
4181 sq = 100;
4182 else
4183 sq = ((64 - sq) * 100) / 44;
4184 }
4185 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4186 pstats->RxMIMOSignalQuality[0] =
4187 precord_stats->RxMIMOSignalQuality[0] = sq;
4188 pstats->RxMIMOSignalQuality[1] =
4189 precord_stats->RxMIMOSignalQuality[1] = -1;
4190
4191 } else {
4192 priv->stats.numqry_phystatusHT++;
4193
4194 /* (1)Get RSSI for HT rate */
4195 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4196 /* We will judge RF RX path now. */
4197 if (priv->brfpath_rxenable[i])
4198 rf_rx_num++;
4199 else
4200 continue;
4201
4202 if (!rtl8192_phy_CheckIsLegalRFPath(
4203 priv->ieee80211->dev, i))
4204 continue;
4205
4206 rx_pwr[i] =
4207 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4208
4209 /* Get Rx snr value in DB */
4210 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4211 rx_snrX = (s8)(tmp_rxsnr);
4212 rx_snrX /= 2;
4213 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4214
4215 /* Translate DBM to percentage. */
4216 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4217 total_rssi += RSSI;
4218
4219 /* Record Signal Strength for next packet */
4220 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4221 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4222 }
4223
4224
4225 /* (2)PWDB, Average PWDB calculated by hardware
4226 * (for rate adaptive)
4227 */
4228 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4229 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4230
4231 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4232 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4233
4234 /* (3)EVM of HT rate */
4235 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4236 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4237 /* both spatial stream make sense */
4238 max_spatial_stream = 2;
4239 else
4240 /* only spatial stream 1 makes sense */
4241 max_spatial_stream = 1;
4242
4243 for (i = 0; i < max_spatial_stream; i++) {
4244 tmp_rxevm = pofdm_buf->rxevm_X[i];
4245 rx_evmX = (s8)(tmp_rxevm);
4246
4247 /* Do not use shift operation like "rx_evmX >>= 1"
4248 * because the compiler of free build environment will
4249 * set the most significant bit to "zero" when doing
4250 * shifting operation which may change a negative value
4251 * to positive one, then the dbm value (which is
4252 * supposed to be negative) is not correct anymore.
4253 */
4254 rx_evmX /= 2; /* dbm */
4255
4256 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4257 if (i == 0)
4258 /* Fill value in RFD, Get the first spatial
4259 * stream only
4260 */
4261 pstats->SignalQuality =
4262 precord_stats->SignalQuality =
4263 evm & 0xff;
4264 pstats->RxMIMOSignalQuality[i] =
4265 precord_stats->RxMIMOSignalQuality[i] =
4266 evm & 0xff;
4267 }
4268
4269
4270 /* record rx statistics for debug */
4271 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4272 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4273 &rxsc_sgien_exflg;
4274 if (pdrvinfo->BW) /* 40M channel */
4275 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4276 else /* 20M channel */
4277 priv->stats.received_bwtype[0]++;
4278 }
4279
4280 /* UI BSS List signal strength(in percentage), make it good looking,
4281 * from 0~100. It is assigned to the BSS List in
4282 * GetValueFromBeaconOrProbeRsp().
4283 */
4284 if (is_cck_rate) {
4285 pstats->SignalStrength =
4286 precord_stats->SignalStrength =
4287 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4288 } else {
4289 /* We can judge RX path number now. */
4290 if (rf_rx_num != 0) {
4291 pstats->SignalStrength =
4292 precord_stats->SignalStrength =
4293 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4294 }
4295 }
4296 } /* QueryRxPhyStatus8190Pci */
4297
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4298 static void rtl8192_record_rxdesc_forlateruse(
4299 struct ieee80211_rx_stats *psrc_stats,
4300 struct ieee80211_rx_stats *ptarget_stats)
4301 {
4302 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4303 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4304 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4305 }
4306
4307
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo)4308 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4309 struct ieee80211_rx_stats *pstats,
4310 struct rx_drvinfo_819x_usb *pdrvinfo)
4311 {
4312 /* TODO: We must only check packet for current MAC address.
4313 * Not finish
4314 */
4315 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4316 struct net_device *dev = info->dev;
4317 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4318 bool bpacket_match_bssid, bpacket_toself;
4319 bool bPacketBeacon = false, bToSelfBA = false;
4320 static struct ieee80211_rx_stats previous_stats;
4321 struct rtl_80211_hdr_3addr *hdr;
4322 u16 fc, type;
4323
4324 /* Get Signal Quality for only RX data queue (but not command queue) */
4325
4326 u8 *tmp_buf;
4327 u8 *praddr;
4328
4329 /* Get MAC frame start address. */
4330 tmp_buf = (u8 *)skb->data;
4331
4332 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4333 fc = le16_to_cpu(hdr->frame_ctl);
4334 type = WLAN_FC_GET_TYPE(fc);
4335 praddr = hdr->addr1;
4336
4337 /* Check if the received packet is acceptable. */
4338 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
4339 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4340 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4341 bpacket_toself = bpacket_match_bssid &
4342 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr));
4343
4344 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4345 bPacketBeacon = true;
4346 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4347 if ((ether_addr_equal(praddr, dev->dev_addr)))
4348 bToSelfBA = true;
4349 }
4350
4351
4352
4353 if (bpacket_match_bssid)
4354 priv->stats.numpacket_matchbssid++;
4355 if (bpacket_toself)
4356 priv->stats.numpacket_toself++;
4357 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4358 * Because phy information is contained in the last packet of AMPDU
4359 * only, so driver should process phy information of previous packet
4360 */
4361 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4362 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4363 bpacket_match_bssid, bpacket_toself,
4364 bPacketBeacon, bToSelfBA);
4365 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4366 }
4367
4368 /**
4369 * Function: UpdateReceivedRateHistogramStatistics
4370 * Overview: Record the received data rate
4371 *
4372 * Input:
4373 * struct net_device *dev
4374 * struct ieee80211_rx_stats *stats
4375 *
4376 * Output:
4377 *
4378 * (priv->stats.ReceivedRateHistogram[] is updated)
4379 * Return:
4380 * None
4381 */
4382 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4383 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4384 struct ieee80211_rx_stats *stats)
4385 {
4386 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4387 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4388 u32 rcvType = 1;
4389 u32 rateIndex;
4390 /* 1: short preamble/GI, 0: long preamble/GI */
4391 u32 preamble_guardinterval;
4392
4393
4394 if (stats->bCRC)
4395 rcvType = 2;
4396 else if (stats->bICV)
4397 rcvType = 3;
4398
4399 if (stats->bShortPreamble)
4400 preamble_guardinterval = 1; /* short */
4401 else
4402 preamble_guardinterval = 0; /* long */
4403
4404 switch (stats->rate) {
4405 /* CCK rate */
4406 case MGN_1M:
4407 rateIndex = 0;
4408 break;
4409 case MGN_2M:
4410 rateIndex = 1;
4411 break;
4412 case MGN_5_5M:
4413 rateIndex = 2;
4414 break;
4415 case MGN_11M:
4416 rateIndex = 3;
4417 break;
4418 /* Legacy OFDM rate */
4419 case MGN_6M:
4420 rateIndex = 4;
4421 break;
4422 case MGN_9M:
4423 rateIndex = 5;
4424 break;
4425 case MGN_12M:
4426 rateIndex = 6;
4427 break;
4428 case MGN_18M:
4429 rateIndex = 7;
4430 break;
4431 case MGN_24M:
4432 rateIndex = 8;
4433 break;
4434 case MGN_36M:
4435 rateIndex = 9;
4436 break;
4437 case MGN_48M:
4438 rateIndex = 10;
4439 break;
4440 case MGN_54M:
4441 rateIndex = 11;
4442 break;
4443 /* 11n High throughput rate */
4444 case MGN_MCS0:
4445 rateIndex = 12;
4446 break;
4447 case MGN_MCS1:
4448 rateIndex = 13;
4449 break;
4450 case MGN_MCS2:
4451 rateIndex = 14;
4452 break;
4453 case MGN_MCS3:
4454 rateIndex = 15;
4455 break;
4456 case MGN_MCS4:
4457 rateIndex = 16;
4458 break;
4459 case MGN_MCS5:
4460 rateIndex = 17;
4461 break;
4462 case MGN_MCS6:
4463 rateIndex = 18;
4464 break;
4465 case MGN_MCS7:
4466 rateIndex = 19;
4467 break;
4468 case MGN_MCS8:
4469 rateIndex = 20;
4470 break;
4471 case MGN_MCS9:
4472 rateIndex = 21;
4473 break;
4474 case MGN_MCS10:
4475 rateIndex = 22;
4476 break;
4477 case MGN_MCS11:
4478 rateIndex = 23;
4479 break;
4480 case MGN_MCS12:
4481 rateIndex = 24;
4482 break;
4483 case MGN_MCS13:
4484 rateIndex = 25;
4485 break;
4486 case MGN_MCS14:
4487 rateIndex = 26;
4488 break;
4489 case MGN_MCS15:
4490 rateIndex = 27;
4491 break;
4492 default:
4493 rateIndex = 28;
4494 break;
4495 }
4496 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4497 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4498 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4499 }
4500
4501
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4502 static void query_rxdesc_status(struct sk_buff *skb,
4503 struct ieee80211_rx_stats *stats,
4504 bool bIsRxAggrSubframe)
4505 {
4506 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4507 struct net_device *dev = info->dev;
4508 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4509 struct rx_drvinfo_819x_usb *driver_info = NULL;
4510
4511 /* Get Rx Descriptor Information */
4512 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4513
4514 stats->Length = desc->Length;
4515 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4516 stats->RxBufShift = 0;
4517 stats->bICV = desc->ICV;
4518 stats->bCRC = desc->CRC32;
4519 stats->bHwError = stats->bCRC | stats->bICV;
4520 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4521 stats->Decrypted = !desc->SWDec;
4522
4523 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4524 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4525 stats->bHwError = false;
4526 else
4527 stats->bHwError = stats->bCRC | stats->bICV;
4528
4529 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4530 stats->bHwError |= 1;
4531 /* Get Driver Info */
4532 /* TODO: Need to verify it on FGPA platform
4533 * Driver info are written to the RxBuffer following rx desc
4534 */
4535 if (stats->RxDrvInfoSize != 0) {
4536 driver_info = (struct rx_drvinfo_819x_usb *)(
4537 skb->data
4538 + sizeof(struct rx_desc_819x_usb)
4539 + stats->RxBufShift
4540 );
4541 /* unit: 0.5M */
4542 /* TODO */
4543 if (!stats->bHwError) {
4544 u8 ret_rate;
4545
4546 ret_rate = HwRateToMRate90(driver_info->RxHT,
4547 driver_info->RxRate);
4548 if (ret_rate == 0xff) {
4549 /* Abnormal Case: Receive CRC OK packet with Rx
4550 * descriptor indicating non supported rate.
4551 * Special Error Handling here
4552 */
4553
4554 stats->bHwError = 1;
4555 /* Set 1M rate by default */
4556 stats->rate = MGN_1M;
4557 } else {
4558 stats->rate = ret_rate;
4559 }
4560 } else {
4561 stats->rate = 0x02;
4562 }
4563
4564 stats->bShortPreamble = driver_info->SPLCP;
4565
4566
4567 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4568
4569 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4570 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4571 (driver_info->FirstAGGR == 1);
4572 stats->TimeStampLow = driver_info->TSFL;
4573
4574 UpdateRxPktTimeStamp8190(dev, stats);
4575
4576 /* Rx A-MPDU */
4577 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4578 RT_TRACE(COMP_RXDESC,
4579 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4580 driver_info->FirstAGGR, driver_info->PartAggr);
4581 }
4582
4583 skb_pull(skb, sizeof(struct rx_desc_819x_usb));
4584 /* Get Total offset of MPDU Frame Body */
4585 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4586 stats->bShift = 1;
4587 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4588 }
4589
4590 if (driver_info) {
4591 stats->RxIs40MHzPacket = driver_info->BW;
4592 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4593 }
4594 }
4595
rtl8192_rx_nomal(struct sk_buff * skb)4596 static void rtl8192_rx_nomal(struct sk_buff *skb)
4597 {
4598 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4599 struct net_device *dev = info->dev;
4600 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4601 struct ieee80211_rx_stats stats = {
4602 .signal = 0,
4603 .noise = 0x100 - 98,
4604 .rate = 0,
4605 .freq = IEEE80211_24GHZ_BAND,
4606 };
4607 u32 rx_pkt_len = 0;
4608 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4609 bool unicast_packet = false;
4610
4611 /* 20 is for ps-poll */
4612 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4613 /* first packet should not contain Rx aggregation header */
4614 query_rxdesc_status(skb, &stats, false);
4615 /* TODO */
4616 /* hardware related info */
4617 /* Process the MPDU received */
4618 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4619
4620 rx_pkt_len = skb->len;
4621 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4622 unicast_packet = false;
4623 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4624 /* TODO */
4625 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4626 /* TODO */
4627 } else {
4628 /* unicast packet */
4629 unicast_packet = true;
4630 }
4631
4632 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4633 dev_kfree_skb_any(skb);
4634 } else {
4635 priv->stats.rxoktotal++;
4636 if (unicast_packet)
4637 priv->stats.rxbytesunicast += rx_pkt_len;
4638 }
4639 } else {
4640 priv->stats.rxurberr++;
4641 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4642 dev_kfree_skb_any(skb);
4643 }
4644 }
4645
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4646 static void rtl819xusb_process_received_packet(
4647 struct net_device *dev,
4648 struct ieee80211_rx_stats *pstats)
4649 {
4650 struct r8192_priv *priv = ieee80211_priv(dev);
4651
4652 /* Get shifted bytes of Starting address of 802.11 header. */
4653 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4654 #ifdef TODO /* about HCT */
4655 if (!Adapter->bInHctTest)
4656 CountRxErrStatistics(Adapter, pRfd);
4657 #endif
4658 #ifdef ENABLE_PS /* for adding ps function in future */
4659 RT_RF_POWER_STATE rtState;
4660 /* When RF is off, we should not count the packet for hw/sw synchronize
4661 * reason, ie. there may be a duration while sw switch is changed and
4662 * hw switch is being changed.
4663 */
4664 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4665 (u8 *)(&rtState));
4666 if (rtState == eRfOff)
4667 return;
4668 #endif
4669 priv->stats.rxframgment++;
4670
4671 #ifdef TODO
4672 RmMonitorSignalStrength(Adapter, pRfd);
4673 #endif
4674 /* We have to release RFD and return if rx pkt is cmd pkt. */
4675 if (rtl819xusb_rx_command_packet(dev, pstats))
4676 return;
4677
4678 #ifdef SW_CRC_CHECK
4679 SwCrcCheck();
4680 #endif
4681
4682
4683 }
4684
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4685 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4686 struct ieee80211_rx_stats *stats)
4687 {
4688 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4689
4690 /* Get Rx Descriptor Information */
4691 stats->virtual_address = (u8 *)skb->data;
4692 stats->Length = desc->Length;
4693 stats->RxDrvInfoSize = 0;
4694 stats->RxBufShift = 0;
4695 stats->packetlength = stats->Length - scrclng;
4696 stats->fraglength = stats->packetlength;
4697 stats->fragoffset = 0;
4698 stats->ntotalfrag = 1;
4699 }
4700
4701
rtl8192_rx_cmd(struct sk_buff * skb)4702 static void rtl8192_rx_cmd(struct sk_buff *skb)
4703 {
4704 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4705 struct net_device *dev = info->dev;
4706 /* TODO */
4707 struct ieee80211_rx_stats stats = {
4708 .signal = 0,
4709 .noise = 0x100 - 98,
4710 .rate = 0,
4711 .freq = IEEE80211_24GHZ_BAND,
4712 };
4713
4714 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4715 query_rx_cmdpkt_desc_status(skb, &stats);
4716 /* prfd->queue_id = 1; */
4717
4718 /* Process the command packet received. */
4719
4720 rtl819xusb_process_received_packet(dev, &stats);
4721
4722 dev_kfree_skb_any(skb);
4723 }
4724 }
4725
rtl8192_irq_rx_tasklet(struct r8192_priv * priv)4726 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4727 {
4728 struct sk_buff *skb;
4729 struct rtl8192_rx_info *info;
4730
4731 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4732 info = (struct rtl8192_rx_info *)skb->cb;
4733 switch (info->out_pipe) {
4734 /* Nomal packet pipe */
4735 case 3:
4736 priv->IrpPendingCount--;
4737 rtl8192_rx_nomal(skb);
4738 break;
4739
4740 /* Command packet pipe */
4741 case 9:
4742 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4743 info->out_pipe);
4744
4745 rtl8192_rx_cmd(skb);
4746 break;
4747
4748 default: /* should never get here! */
4749 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4750 info->out_pipe);
4751 dev_kfree_skb(skb);
4752 break;
4753 }
4754 }
4755 }
4756
4757 static const struct net_device_ops rtl8192_netdev_ops = {
4758 .ndo_open = rtl8192_open,
4759 .ndo_stop = rtl8192_close,
4760 .ndo_get_stats = rtl8192_stats,
4761 .ndo_tx_timeout = tx_timeout,
4762 .ndo_do_ioctl = rtl8192_ioctl,
4763 .ndo_set_rx_mode = r8192_set_multicast,
4764 .ndo_set_mac_address = r8192_set_mac_adr,
4765 .ndo_validate_addr = eth_validate_addr,
4766 .ndo_start_xmit = ieee80211_xmit,
4767 };
4768
4769
4770 /****************************************************************************
4771 * ---------------------------- USB_STUFF---------------------------
4772 *****************************************************************************/
4773
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4774 static int rtl8192_usb_probe(struct usb_interface *intf,
4775 const struct usb_device_id *id)
4776 {
4777 struct net_device *dev = NULL;
4778 struct r8192_priv *priv = NULL;
4779 struct usb_device *udev = interface_to_usbdev(intf);
4780 int ret;
4781
4782 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4783
4784 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4785 if (!dev)
4786 return -ENOMEM;
4787
4788 usb_set_intfdata(intf, dev);
4789 SET_NETDEV_DEV(dev, &intf->dev);
4790 priv = ieee80211_priv(dev);
4791 priv->ieee80211 = netdev_priv(dev);
4792 priv->udev = udev;
4793
4794 dev->netdev_ops = &rtl8192_netdev_ops;
4795
4796 dev->wireless_handlers = &r8192_wx_handlers_def;
4797
4798 dev->type = ARPHRD_ETHER;
4799
4800 dev->watchdog_timeo = HZ * 3;
4801
4802 if (dev_alloc_name(dev, ifname) < 0) {
4803 RT_TRACE(COMP_INIT,
4804 "Oops: devname already taken! Trying wlan%%d...\n");
4805 ifname = "wlan%d";
4806 dev_alloc_name(dev, ifname);
4807 }
4808
4809 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4810 if (rtl8192_init(dev) != 0) {
4811 RT_TRACE(COMP_ERR, "Initialization failed");
4812 ret = -ENODEV;
4813 goto fail;
4814 }
4815 netif_carrier_off(dev);
4816 netif_stop_queue(dev);
4817
4818 ret = register_netdev(dev);
4819 if (ret)
4820 goto fail2;
4821
4822 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4823 rtl8192_proc_init_one(dev);
4824
4825
4826 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4827 return 0;
4828
4829 fail2:
4830 rtl8192_down(dev);
4831 fail:
4832 kfree(priv->pFirmware);
4833 priv->pFirmware = NULL;
4834 rtl8192_usb_deleteendpoints(dev);
4835 msleep(10);
4836 free_ieee80211(dev);
4837
4838 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
4839 return ret;
4840 }
4841
4842 /* detach all the work and timer structure declared or inititialize
4843 * in r8192U_init function.
4844 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)4845 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
4846 {
4847 cancel_work_sync(&priv->reset_wq);
4848 cancel_delayed_work(&priv->watch_dog_wq);
4849 cancel_delayed_work(&priv->update_beacon_wq);
4850 cancel_work_sync(&priv->qos_activate);
4851 }
4852
4853
rtl8192_usb_disconnect(struct usb_interface * intf)4854 static void rtl8192_usb_disconnect(struct usb_interface *intf)
4855 {
4856 struct net_device *dev = usb_get_intfdata(intf);
4857 struct r8192_priv *priv = ieee80211_priv(dev);
4858
4859 unregister_netdev(dev);
4860
4861 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n");
4862 rtl8192_proc_remove_one(dev);
4863
4864 rtl8192_down(dev);
4865 kfree(priv->pFirmware);
4866 priv->pFirmware = NULL;
4867 rtl8192_usb_deleteendpoints(dev);
4868 usleep_range(10000, 11000);
4869 free_ieee80211(dev);
4870
4871 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
4872 }
4873
rtl8192_usb_module_init(void)4874 static int __init rtl8192_usb_module_init(void)
4875 {
4876 int ret;
4877
4878 #ifdef CONFIG_IEEE80211_DEBUG
4879 ret = ieee80211_debug_init();
4880 if (ret) {
4881 pr_err("ieee80211_debug_init() failed %d\n", ret);
4882 return ret;
4883 }
4884 #endif
4885 ret = ieee80211_crypto_init();
4886 if (ret) {
4887 pr_err("ieee80211_crypto_init() failed %d\n", ret);
4888 return ret;
4889 }
4890
4891 ret = ieee80211_crypto_tkip_init();
4892 if (ret) {
4893 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
4894 return ret;
4895 }
4896
4897 ret = ieee80211_crypto_ccmp_init();
4898 if (ret) {
4899 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
4900 return ret;
4901 }
4902
4903 ret = ieee80211_crypto_wep_init();
4904 if (ret) {
4905 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
4906 return ret;
4907 }
4908
4909 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
4910 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
4911 RT_TRACE(COMP_INIT, "Initializing module");
4912 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
4913 rtl8192_proc_module_init();
4914 return usb_register(&rtl8192_usb_driver);
4915 }
4916
4917
rtl8192_usb_module_exit(void)4918 static void __exit rtl8192_usb_module_exit(void)
4919 {
4920 usb_deregister(&rtl8192_usb_driver);
4921
4922 RT_TRACE(COMP_DOWN, "Exiting");
4923 }
4924
EnableHWSecurityConfig8192(struct net_device * dev)4925 void EnableHWSecurityConfig8192(struct net_device *dev)
4926 {
4927 u8 SECR_value = 0x0;
4928 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4929 struct ieee80211_device *ieee = priv->ieee80211;
4930
4931 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
4932 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) {
4933 SECR_value |= SCR_RxUseDK;
4934 SECR_value |= SCR_TxUseDK;
4935 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
4936 SECR_value |= SCR_RxUseDK;
4937 SECR_value |= SCR_TxUseDK;
4938 }
4939 /* add HWSec active enable here.
4940 * default using hwsec. when peer AP is in N mode only and
4941 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
4942 * it), use software security. when peer AP is in b,g,n mode mixed and
4943 * pairwise_key_type is none_aes, use g mode hw security.
4944 */
4945
4946 ieee->hwsec_active = 1;
4947
4948 /* add hwsec_support flag to totol control hw_sec on/off */
4949 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
4950 ieee->hwsec_active = 0;
4951 SECR_value &= ~SCR_RxDecEnable;
4952 }
4953 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
4954 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
4955 SECR_value);
4956 write_nic_byte(dev, SECR, SECR_value);
4957 }
4958
4959
setKey(struct net_device * dev,u8 EntryNo,u8 KeyIndex,u16 KeyType,u8 * MacAddr,u8 DefaultKey,u32 * KeyContent)4960 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
4961 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
4962 {
4963 u32 TargetCommand = 0;
4964 u32 TargetContent = 0;
4965 u16 usConfig = 0;
4966 u8 i;
4967
4968 if (EntryNo >= TOTAL_CAM_ENTRY)
4969 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
4970
4971 RT_TRACE(COMP_SEC,
4972 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
4973 dev, EntryNo, KeyIndex, KeyType, MacAddr);
4974
4975 if (DefaultKey)
4976 usConfig |= BIT(15) | (KeyType << 2);
4977 else
4978 usConfig |= BIT(15) | (KeyType << 2) | KeyIndex;
4979
4980
4981 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
4982 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
4983 TargetCommand |= BIT(31) | BIT(16);
4984
4985 if (i == 0) { /* MAC|Config */
4986 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
4987 (u32)(*(MacAddr + 1)) << 24 |
4988 (u32)usConfig;
4989
4990 write_nic_dword(dev, WCAMI, TargetContent);
4991 write_nic_dword(dev, RWCAM, TargetCommand);
4992 } else if (i == 1) { /* MAC */
4993 TargetContent = (u32)(*(MacAddr + 2)) |
4994 (u32)(*(MacAddr + 3)) << 8 |
4995 (u32)(*(MacAddr + 4)) << 16 |
4996 (u32)(*(MacAddr + 5)) << 24;
4997 write_nic_dword(dev, WCAMI, TargetContent);
4998 write_nic_dword(dev, RWCAM, TargetCommand);
4999 } else {
5000 /* Key Material */
5001 if (KeyContent) {
5002 write_nic_dword(dev, WCAMI,
5003 *(KeyContent + i - 2));
5004 write_nic_dword(dev, RWCAM, TargetCommand);
5005 }
5006 }
5007 }
5008 }
5009
5010 /***************************************************************************
5011 * ------------------- module init / exit stubs ----------------
5012 ****************************************************************************/
5013 module_init(rtl8192_usb_module_init);
5014 module_exit(rtl8192_usb_module_exit);
5015