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 "ieee80211/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
100 module_param(ifname, charp, 0644);
101 module_param(hwwep, int, 0644);
102
103 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
104 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
105
106 static int rtl8192_usb_probe(struct usb_interface *intf,
107 const struct usb_device_id *id);
108 static void rtl8192_usb_disconnect(struct usb_interface *intf);
109
110 static struct usb_driver rtl8192_usb_driver = {
111 .name = RTL819XU_MODULE_NAME, /* Driver name */
112 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
113 .probe = rtl8192_usb_probe, /* probe fn */
114 .disconnect = rtl8192_usb_disconnect, /* remove fn */
115 .suspend = NULL, /* PM suspend fn */
116 .resume = NULL, /* PM resume fn */
117 };
118
119 struct CHANNEL_LIST {
120 u8 Channel[32];
121 u8 Len;
122 };
123
124 static struct CHANNEL_LIST ChannelPlan[] = {
125 /* FCC */
126 {{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},
127 /* IC */
128 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
129 /* ETSI */
130 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
131 /* Spain. Change to ETSI. */
132 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
133 /* France. Change to ETSI. */
134 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
135 /* MKK */
136 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
137 /* MKK1 */
138 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
139 /* Israel. */
140 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
141 /* For 11a , TELEC */
142 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
143 /* MIC */
144 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
145 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
146 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
147 };
148
rtl819x_set_channel_map(u8 channel_plan,struct r8192_priv * priv)149 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
150 {
151 int i, max_chan = -1, min_chan = -1;
152 struct ieee80211_device *ieee = priv->ieee80211;
153
154 switch (channel_plan) {
155 case COUNTRY_CODE_FCC:
156 case COUNTRY_CODE_IC:
157 case COUNTRY_CODE_ETSI:
158 case COUNTRY_CODE_SPAIN:
159 case COUNTRY_CODE_FRANCE:
160 case COUNTRY_CODE_MKK:
161 case COUNTRY_CODE_MKK1:
162 case COUNTRY_CODE_ISRAEL:
163 case COUNTRY_CODE_TELEC:
164 case COUNTRY_CODE_MIC:
165 rtl8192u_dot11d_init(ieee);
166 ieee->bGlobalDomain = false;
167 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
168 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
169 min_chan = 1;
170 max_chan = 14;
171 } else {
172 RT_TRACE(COMP_ERR,
173 "unknown rf chip, can't set channel map in function:%s()\n",
174 __func__);
175 }
176 if (ChannelPlan[channel_plan].Len != 0) {
177 /* Clear old channel map */
178 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
179 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
180 /* Set new channel map */
181 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
182 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
183 break;
184 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
185 }
186 }
187 break;
188
189 case COUNTRY_CODE_GLOBAL_DOMAIN:
190 /* this flag enabled to follow 11d country IE setting,
191 * otherwise, it shall follow global domain settings.
192 */
193 GET_DOT11D_INFO(ieee)->dot11d_enabled = 0;
194 dot11d_reset(ieee);
195 ieee->bGlobalDomain = true;
196 break;
197
198 default:
199 break;
200 }
201 }
202
CamResetAllEntry(struct net_device * dev)203 static void CamResetAllEntry(struct net_device *dev)
204 {
205 u32 ulcommand = 0;
206 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
207 * associate to AP. However, ResetKey is called on
208 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
209 * condition, Cam can not be reset because upper layer will not set
210 * this static key again.
211 */
212 ulcommand |= BIT(31) | BIT(30);
213 write_nic_dword(dev, RWCAM, ulcommand);
214 }
215
write_nic_byte_E(struct net_device * dev,int indx,u8 data)216 int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
217 {
218 int status;
219 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
220 struct usb_device *udev = priv->udev;
221 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
222
223 if (!usbdata)
224 return -ENOMEM;
225 *usbdata = data;
226
227 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
228 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
229 indx | 0xfe00, 0, usbdata, 1, 500);
230 kfree(usbdata);
231
232 if (status < 0) {
233 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
234 return status;
235 }
236 return 0;
237 }
238
read_nic_byte_E(struct net_device * dev,int indx,u8 * data)239 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
240 {
241 int status;
242 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
243 struct usb_device *udev = priv->udev;
244 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
245
246 if (!usbdata)
247 return -ENOMEM;
248
249 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
250 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
251 indx | 0xfe00, 0, usbdata, 1, 500);
252 *data = *usbdata;
253 kfree(usbdata);
254
255 if (status < 0) {
256 netdev_err(dev, "%s failure status: %d\n", __func__, status);
257 return status;
258 }
259
260 return 0;
261 }
262
263 /* as 92U has extend page from 4 to 16, so modify functions below. */
write_nic_byte(struct net_device * dev,int indx,u8 data)264 int write_nic_byte(struct net_device *dev, int indx, u8 data)
265 {
266 int status;
267
268 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
269 struct usb_device *udev = priv->udev;
270 u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
271
272 if (!usbdata)
273 return -ENOMEM;
274 *usbdata = data;
275
276 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
277 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
278 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
279 usbdata, 1, 500);
280 kfree(usbdata);
281
282 if (status < 0) {
283 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
284 return status;
285 }
286
287 return 0;
288 }
289
write_nic_word(struct net_device * dev,int indx,u16 data)290 int write_nic_word(struct net_device *dev, int indx, u16 data)
291 {
292 int status;
293
294 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
295 struct usb_device *udev = priv->udev;
296 u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
297
298 if (!usbdata)
299 return -ENOMEM;
300 *usbdata = data;
301
302 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
303 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
304 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
305 usbdata, 2, 500);
306 kfree(usbdata);
307
308 if (status < 0) {
309 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
310 return status;
311 }
312
313 return 0;
314 }
315
write_nic_dword(struct net_device * dev,int indx,u32 data)316 int write_nic_dword(struct net_device *dev, int indx, u32 data)
317 {
318 int status;
319
320 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
321 struct usb_device *udev = priv->udev;
322 u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
323
324 if (!usbdata)
325 return -ENOMEM;
326 *usbdata = data;
327
328 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
329 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
330 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
331 usbdata, 4, 500);
332 kfree(usbdata);
333
334 if (status < 0) {
335 netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status);
336 return status;
337 }
338
339 return 0;
340 }
341
read_nic_byte(struct net_device * dev,int indx,u8 * data)342 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
343 {
344 int status;
345 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
346 struct usb_device *udev = priv->udev;
347 u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL);
348
349 if (!usbdata)
350 return -ENOMEM;
351
352 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
353 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
354 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
355 usbdata, 1, 500);
356 *data = *usbdata;
357 kfree(usbdata);
358
359 if (status < 0) {
360 netdev_err(dev, "%s failure status: %d\n", __func__, status);
361 return status;
362 }
363
364 return 0;
365 }
366
read_nic_word(struct net_device * dev,int indx,u16 * data)367 int read_nic_word(struct net_device *dev, int indx, u16 *data)
368 {
369 int status;
370 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
371 struct usb_device *udev = priv->udev;
372 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
373
374 if (!usbdata)
375 return -ENOMEM;
376
377 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
378 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
379 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
380 usbdata, 2, 500);
381 *data = *usbdata;
382 kfree(usbdata);
383
384 if (status < 0) {
385 netdev_err(dev, "%s failure status: %d\n", __func__, status);
386 return status;
387 }
388
389 return 0;
390 }
391
read_nic_word_E(struct net_device * dev,int indx,u16 * data)392 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
393 {
394 int status;
395 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
396 struct usb_device *udev = priv->udev;
397 u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL);
398
399 if (!usbdata)
400 return -ENOMEM;
401
402 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
403 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
404 indx | 0xfe00, 0, usbdata, 2, 500);
405 *data = *usbdata;
406 kfree(usbdata);
407
408 if (status < 0) {
409 netdev_err(dev, "%s failure status: %d\n", __func__, status);
410 return status;
411 }
412
413 return 0;
414 }
415
read_nic_dword(struct net_device * dev,int indx,u32 * data)416 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
417 {
418 int status;
419
420 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
421 struct usb_device *udev = priv->udev;
422 u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL);
423
424 if (!usbdata)
425 return -ENOMEM;
426
427 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
428 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
429 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
430 usbdata, 4, 500);
431 *data = *usbdata;
432 kfree(usbdata);
433
434 if (status < 0) {
435 netdev_err(dev, "%s failure status: %d\n", __func__, status);
436 return status;
437 }
438
439 return 0;
440 }
441
442 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
443 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
444 /* this might still called in what was the PHY rtl8185/rtl8192 common code
445 * plans are to possibility turn it again in one common code...
446 */
force_pci_posting(struct net_device * dev)447 inline void force_pci_posting(struct net_device *dev)
448 {
449 }
450
451 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
452 static void rtl8192_restart(struct work_struct *work);
453 static void watch_dog_timer_callback(struct timer_list *t);
454
455 /****************************************************************************
456 * -----------------------------PROCFS STUFF-------------------------
457 ****************************************************************************/
458
459 static struct proc_dir_entry *rtl8192_proc;
460
proc_get_stats_ap(struct seq_file * m,void * v)461 static int __maybe_unused proc_get_stats_ap(struct seq_file *m, void *v)
462 {
463 struct net_device *dev = m->private;
464 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
465 struct ieee80211_device *ieee = priv->ieee80211;
466 struct ieee80211_network *target;
467
468 list_for_each_entry(target, &ieee->network_list, list) {
469 const char *wpa = "non_WPA";
470
471 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
472 wpa = "WPA";
473
474 seq_printf(m, "%s %s\n", target->ssid, wpa);
475 }
476
477 return 0;
478 }
479
proc_get_registers(struct seq_file * m,void * v)480 static int __maybe_unused proc_get_registers(struct seq_file *m, void *v)
481 {
482 struct net_device *dev = m->private;
483 int i, n, max = 0xff;
484 u8 byte_rd;
485
486 seq_puts(m, "\n####################page 0##################\n ");
487
488 for (n = 0; n <= max;) {
489 seq_printf(m, "\nD: %2x > ", n);
490
491 for (i = 0; i < 16 && n <= max; i++, n++) {
492 read_nic_byte(dev, 0x000 | n, &byte_rd);
493 seq_printf(m, "%2x ", byte_rd);
494 }
495 }
496
497 seq_puts(m, "\n####################page 1##################\n ");
498 for (n = 0; n <= max;) {
499 seq_printf(m, "\nD: %2x > ", n);
500
501 for (i = 0; i < 16 && n <= max; i++, n++) {
502 read_nic_byte(dev, 0x100 | n, &byte_rd);
503 seq_printf(m, "%2x ", byte_rd);
504 }
505 }
506
507 seq_puts(m, "\n####################page 3##################\n ");
508 for (n = 0; n <= max;) {
509 seq_printf(m, "\nD: %2x > ", n);
510
511 for (i = 0; i < 16 && n <= max; i++, n++) {
512 read_nic_byte(dev, 0x300 | n, &byte_rd);
513 seq_printf(m, "%2x ", byte_rd);
514 }
515 }
516
517 seq_putc(m, '\n');
518 return 0;
519 }
520
proc_get_stats_tx(struct seq_file * m,void * v)521 static int __maybe_unused proc_get_stats_tx(struct seq_file *m, void *v)
522 {
523 struct net_device *dev = m->private;
524 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
525
526 seq_printf(m,
527 "TX VI priority ok int: %lu\n"
528 "TX VI priority error int: %lu\n"
529 "TX VO priority ok int: %lu\n"
530 "TX VO priority error int: %lu\n"
531 "TX BE priority ok int: %lu\n"
532 "TX BE priority error int: %lu\n"
533 "TX BK priority ok int: %lu\n"
534 "TX BK priority error int: %lu\n"
535 "TX MANAGE priority ok int: %lu\n"
536 "TX MANAGE priority error int: %lu\n"
537 "TX BEACON priority ok int: %lu\n"
538 "TX BEACON priority error int: %lu\n"
539 "TX queue resume: %lu\n"
540 "TX queue stopped?: %d\n"
541 "TX fifo overflow: %lu\n"
542 "TX VI queue: %d\n"
543 "TX VO queue: %d\n"
544 "TX BE queue: %d\n"
545 "TX BK queue: %d\n"
546 "TX VI dropped: %lu\n"
547 "TX VO dropped: %lu\n"
548 "TX BE dropped: %lu\n"
549 "TX BK dropped: %lu\n"
550 "TX total data packets %lu\n",
551 priv->stats.txviokint,
552 priv->stats.txvierr,
553 priv->stats.txvookint,
554 priv->stats.txvoerr,
555 priv->stats.txbeokint,
556 priv->stats.txbeerr,
557 priv->stats.txbkokint,
558 priv->stats.txbkerr,
559 priv->stats.txmanageokint,
560 priv->stats.txmanageerr,
561 priv->stats.txbeaconokint,
562 priv->stats.txbeaconerr,
563 priv->stats.txresumed,
564 netif_queue_stopped(dev),
565 priv->stats.txoverflow,
566 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
567 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
568 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
569 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
570 priv->stats.txvidrop,
571 priv->stats.txvodrop,
572 priv->stats.txbedrop,
573 priv->stats.txbkdrop,
574 priv->stats.txdatapkt
575 );
576
577 return 0;
578 }
579
proc_get_stats_rx(struct seq_file * m,void * v)580 static int __maybe_unused proc_get_stats_rx(struct seq_file *m, void *v)
581 {
582 struct net_device *dev = m->private;
583 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
584
585 seq_printf(m,
586 "RX packets: %lu\n"
587 "RX urb status error: %lu\n"
588 "RX invalid urb error: %lu\n",
589 priv->stats.rxoktotal,
590 priv->stats.rxstaterr,
591 priv->stats.rxurberr);
592
593 return 0;
594 }
595
rtl8192_proc_module_init(void)596 static void rtl8192_proc_module_init(void)
597 {
598 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
599 rtl8192_proc = proc_mkdir(RTL819XU_MODULE_NAME, init_net.proc_net);
600 }
601
rtl8192_proc_init_one(struct net_device * dev)602 static void rtl8192_proc_init_one(struct net_device *dev)
603 {
604 struct proc_dir_entry *dir;
605
606 if (!rtl8192_proc)
607 return;
608
609 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
610 if (!dir)
611 return;
612
613 proc_create_single("stats-rx", S_IFREG | 0444, dir,
614 proc_get_stats_rx);
615 proc_create_single("stats-tx", S_IFREG | 0444, dir,
616 proc_get_stats_tx);
617 proc_create_single("stats-ap", S_IFREG | 0444, dir,
618 proc_get_stats_ap);
619 proc_create_single("registers", S_IFREG | 0444, dir,
620 proc_get_registers);
621 }
622
rtl8192_proc_remove_one(struct net_device * dev)623 static void rtl8192_proc_remove_one(struct net_device *dev)
624 {
625 remove_proc_subtree(dev->name, rtl8192_proc);
626 }
627
628 /****************************************************************************
629 * -----------------------------MISC STUFF-------------------------
630 *****************************************************************************/
631
check_nic_enough_desc(struct net_device * dev,int queue_index)632 short check_nic_enough_desc(struct net_device *dev, int queue_index)
633 {
634 struct r8192_priv *priv = ieee80211_priv(dev);
635 int used = atomic_read(&priv->tx_pending[queue_index]);
636
637 return (used < MAX_TX_URB);
638 }
639
tx_timeout(struct net_device * dev,unsigned int txqueue)640 static void tx_timeout(struct net_device *dev, unsigned int txqueue)
641 {
642 struct r8192_priv *priv = ieee80211_priv(dev);
643
644 schedule_work(&priv->reset_wq);
645 }
646
rtl8192_update_msr(struct net_device * dev)647 void rtl8192_update_msr(struct net_device *dev)
648 {
649 struct r8192_priv *priv = ieee80211_priv(dev);
650 u8 msr;
651
652 read_nic_byte(dev, MSR, &msr);
653 msr &= ~MSR_LINK_MASK;
654
655 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
656 * msr must be updated if the state is ASSOCIATING.
657 * this is intentional and make sense for ad-hoc and
658 * master (see the create BSS/IBSS func)
659 */
660 if (priv->ieee80211->state == IEEE80211_LINKED) {
661 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
662 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
663 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
664 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
665 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
666 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
667
668 } else {
669 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
670 }
671
672 write_nic_byte(dev, MSR, msr);
673 }
674
rtl8192_set_chan(struct net_device * dev,short ch)675 void rtl8192_set_chan(struct net_device *dev, short ch)
676 {
677 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
678
679 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
680 priv->chan = ch;
681
682 /* this hack should avoid frame TX during channel setting*/
683
684 /* need to implement rf set channel here */
685
686 if (priv->rf_set_chan)
687 priv->rf_set_chan(dev, priv->chan);
688 mdelay(10);
689 }
690
691 static void rtl8192_rx_isr(struct urb *urb);
692
get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats * pstats)693 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
694 {
695 return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize
696 + pstats->RxBufShift);
697 }
698
rtl8192_rx_enable(struct net_device * dev)699 void rtl8192_rx_enable(struct net_device *dev)
700 {
701 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
702 struct urb *entry;
703 struct sk_buff *skb;
704 struct rtl8192_rx_info *info;
705
706 /* nomal packet rx procedure */
707 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
708 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
709 if (!skb)
710 break;
711 entry = usb_alloc_urb(0, GFP_KERNEL);
712 if (!entry) {
713 kfree_skb(skb);
714 break;
715 }
716 usb_fill_bulk_urb(entry, priv->udev,
717 usb_rcvbulkpipe(priv->udev, 3),
718 skb_tail_pointer(skb),
719 RX_URB_SIZE, rtl8192_rx_isr, skb);
720 info = (struct rtl8192_rx_info *)skb->cb;
721 info->urb = entry;
722 info->dev = dev;
723 info->out_pipe = 3; /* denote rx normal packet queue */
724 skb_queue_tail(&priv->rx_queue, skb);
725 usb_submit_urb(entry, GFP_KERNEL);
726 }
727
728 /* command packet rx procedure */
729 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
730 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
731 if (!skb)
732 break;
733 entry = usb_alloc_urb(0, GFP_KERNEL);
734 if (!entry) {
735 kfree_skb(skb);
736 break;
737 }
738 usb_fill_bulk_urb(entry, priv->udev,
739 usb_rcvbulkpipe(priv->udev, 9),
740 skb_tail_pointer(skb),
741 RX_URB_SIZE, rtl8192_rx_isr, skb);
742 info = (struct rtl8192_rx_info *)skb->cb;
743 info->urb = entry;
744 info->dev = dev;
745 info->out_pipe = 9; /* denote rx cmd packet queue */
746 skb_queue_tail(&priv->rx_queue, skb);
747 usb_submit_urb(entry, GFP_KERNEL);
748 }
749 }
750
rtl8192_set_rxconf(struct net_device * dev)751 void rtl8192_set_rxconf(struct net_device *dev)
752 {
753 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
754 u32 rxconf;
755
756 read_nic_dword(dev, RCR, &rxconf);
757 rxconf = rxconf & ~MAC_FILTER_MASK;
758 rxconf = rxconf | RCR_AMF;
759 rxconf = rxconf | RCR_ADF;
760 rxconf = rxconf | RCR_AB;
761 rxconf = rxconf | RCR_AM;
762
763 if (dev->flags & IFF_PROMISC)
764 DMESG("NIC in promisc mode");
765
766 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
767 dev->flags & IFF_PROMISC) {
768 rxconf = rxconf | RCR_AAP;
769 } else {
770 rxconf = rxconf | RCR_APM;
771 rxconf = rxconf | RCR_CBSSID;
772 }
773
774 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
775 rxconf = rxconf | RCR_AICV;
776 rxconf = rxconf | RCR_APWRMGT;
777 }
778
779 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
780 rxconf = rxconf | RCR_ACRC32;
781
782 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
783 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
784 rxconf = rxconf & ~MAX_RX_DMA_MASK;
785 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
786
787 rxconf = rxconf | RCR_ONLYERLPKT;
788
789 write_nic_dword(dev, RCR, rxconf);
790 }
791
rtl8192_rtx_disable(struct net_device * dev)792 void rtl8192_rtx_disable(struct net_device *dev)
793 {
794 u8 cmd;
795 struct r8192_priv *priv = ieee80211_priv(dev);
796 struct sk_buff *skb;
797 struct rtl8192_rx_info *info;
798
799 read_nic_byte(dev, CMDR, &cmd);
800 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
801 force_pci_posting(dev);
802 mdelay(10);
803
804 while ((skb = __skb_dequeue(&priv->rx_queue))) {
805 info = (struct rtl8192_rx_info *)skb->cb;
806 if (!info->urb)
807 continue;
808
809 usb_kill_urb(info->urb);
810 kfree_skb(skb);
811 }
812
813 if (skb_queue_len(&priv->skb_queue))
814 netdev_warn(dev, "skb_queue not empty\n");
815
816 skb_queue_purge(&priv->skb_queue);
817 }
818
819 /* The prototype of rx_isr has changed since one version of Linux Kernel */
rtl8192_rx_isr(struct urb * urb)820 static void rtl8192_rx_isr(struct urb *urb)
821 {
822 struct sk_buff *skb = (struct sk_buff *)urb->context;
823 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
824 struct net_device *dev = info->dev;
825 struct r8192_priv *priv = ieee80211_priv(dev);
826 int out_pipe = info->out_pipe;
827 int err;
828
829 if (!priv->up)
830 return;
831
832 if (unlikely(urb->status)) {
833 info->urb = NULL;
834 priv->stats.rxstaterr++;
835 priv->ieee80211->stats.rx_errors++;
836 usb_free_urb(urb);
837 return;
838 }
839 skb_unlink(skb, &priv->rx_queue);
840 skb_put(skb, urb->actual_length);
841
842 skb_queue_tail(&priv->skb_queue, skb);
843 tasklet_schedule(&priv->irq_rx_tasklet);
844
845 skb = dev_alloc_skb(RX_URB_SIZE);
846 if (unlikely(!skb)) {
847 usb_free_urb(urb);
848 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
849 /* TODO check rx queue length and refill *somewhere* */
850 return;
851 }
852
853 usb_fill_bulk_urb(urb, priv->udev,
854 usb_rcvbulkpipe(priv->udev, out_pipe),
855 skb_tail_pointer(skb),
856 RX_URB_SIZE, rtl8192_rx_isr, skb);
857
858 info = (struct rtl8192_rx_info *)skb->cb;
859 info->urb = urb;
860 info->dev = dev;
861 info->out_pipe = out_pipe;
862
863 urb->transfer_buffer = skb_tail_pointer(skb);
864 urb->context = skb;
865 skb_queue_tail(&priv->rx_queue, skb);
866 err = usb_submit_urb(urb, GFP_ATOMIC);
867 if (err && err != -EPERM)
868 netdev_err(dev,
869 "can not submit rxurb, err is %x, URB status is %x\n",
870 err, urb->status);
871 }
872
rtl819xusb_rx_command_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)873 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
874 struct ieee80211_rx_stats *pstats)
875 {
876 u32 status;
877
878 status = cmpk_message_handle_rx(dev, pstats);
879 if (status)
880 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
881
882 return status;
883 }
884
rtl8192_data_hard_stop(struct net_device * dev)885 static void rtl8192_data_hard_stop(struct net_device *dev)
886 {
887 /* FIXME !! */
888 }
889
rtl8192_data_hard_resume(struct net_device * dev)890 static void rtl8192_data_hard_resume(struct net_device *dev)
891 {
892 /* FIXME !! */
893 }
894
895 /* this function TX data frames when the ieee80211 stack requires this.
896 * It checks also if we need to stop the ieee tx queue, eventually do it
897 */
rtl8192_hard_data_xmit(struct sk_buff * skb,struct net_device * dev,int rate)898 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
899 int rate)
900 {
901 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
902 unsigned long flags;
903 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
904 u8 queue_index = tcb_desc->queue_index;
905
906 /* shall not be referred by command packet */
907 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
908
909 spin_lock_irqsave(&priv->tx_lock, flags);
910
911 *(struct net_device **)(skb->cb) = dev;
912 tcb_desc->bTxEnableFwCalcDur = 1;
913 skb_push(skb, priv->ieee80211->tx_headroom);
914 rtl8192_tx(dev, skb);
915
916 spin_unlock_irqrestore(&priv->tx_lock, flags);
917 }
918
919 /* This is a rough attempt to TX a frame
920 * This is called by the ieee 80211 stack to TX management frames.
921 * If the ring is full packet are dropped (for data frame the queue
922 * is stopped before this can happen).
923 */
rtl8192_hard_start_xmit(struct sk_buff * skb,struct net_device * dev)924 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
925 {
926 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
927 int ret;
928 unsigned long flags;
929 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
930 u8 queue_index = tcb_desc->queue_index;
931
932 spin_lock_irqsave(&priv->tx_lock, flags);
933
934 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
935 if (queue_index == TXCMD_QUEUE) {
936 skb_push(skb, USB_HWDESC_HEADER_LEN);
937 rtl819xU_tx_cmd(dev, skb);
938 ret = 1;
939 } else {
940 skb_push(skb, priv->ieee80211->tx_headroom);
941 ret = rtl8192_tx(dev, skb);
942 }
943
944 spin_unlock_irqrestore(&priv->tx_lock, flags);
945
946 return ret;
947 }
948
rtl8192_tx_isr(struct urb * tx_urb)949 static void rtl8192_tx_isr(struct urb *tx_urb)
950 {
951 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
952 struct net_device *dev;
953 struct r8192_priv *priv = NULL;
954 struct cb_desc *tcb_desc;
955 u8 queue_index;
956
957 if (!skb)
958 return;
959
960 dev = *(struct net_device **)(skb->cb);
961 tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
962 queue_index = tcb_desc->queue_index;
963
964 priv = ieee80211_priv(dev);
965
966 if (tcb_desc->queue_index != TXCMD_QUEUE) {
967 if (tx_urb->status == 0) {
968 netif_trans_update(dev);
969 priv->stats.txoktotal++;
970 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
971 priv->stats.txbytesunicast +=
972 (skb->len - priv->ieee80211->tx_headroom);
973 } else {
974 priv->ieee80211->stats.tx_errors++;
975 /* TODO */
976 }
977 }
978
979 /* free skb and tx_urb */
980 dev_kfree_skb_any(skb);
981 usb_free_urb(tx_urb);
982 atomic_dec(&priv->tx_pending[queue_index]);
983
984 /*
985 * Handle HW Beacon:
986 * We had transfer our beacon frame to host controller at this moment.
987 *
988 *
989 * Caution:
990 * Handling the wait queue of command packets.
991 * For Tx command packets, we must not do TCB fragment because it is
992 * not handled right now. We must cut the packets to match the size of
993 * TX_CMD_PKT before we send it.
994 */
995
996 /* Handle MPDU in wait queue. */
997 if (queue_index != BEACON_QUEUE) {
998 /* Don't send data frame during scanning.*/
999 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1000 (!(priv->ieee80211->queue_stop))) {
1001 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1002 if (skb)
1003 priv->ieee80211->softmac_hard_start_xmit(skb,
1004 dev);
1005
1006 return; /* avoid further processing AMSDU */
1007 }
1008 }
1009 }
1010
rtl8192_config_rate(struct net_device * dev,u16 * rate_config)1011 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1012 {
1013 struct r8192_priv *priv = ieee80211_priv(dev);
1014 struct ieee80211_network *net;
1015 u8 i = 0, basic_rate = 0;
1016
1017 net = &priv->ieee80211->current_network;
1018
1019 for (i = 0; i < net->rates_len; i++) {
1020 basic_rate = net->rates[i] & 0x7f;
1021 switch (basic_rate) {
1022 case MGN_1M:
1023 *rate_config |= RRSR_1M;
1024 break;
1025 case MGN_2M:
1026 *rate_config |= RRSR_2M;
1027 break;
1028 case MGN_5_5M:
1029 *rate_config |= RRSR_5_5M;
1030 break;
1031 case MGN_11M:
1032 *rate_config |= RRSR_11M;
1033 break;
1034 case MGN_6M:
1035 *rate_config |= RRSR_6M;
1036 break;
1037 case MGN_9M:
1038 *rate_config |= RRSR_9M;
1039 break;
1040 case MGN_12M:
1041 *rate_config |= RRSR_12M;
1042 break;
1043 case MGN_18M:
1044 *rate_config |= RRSR_18M;
1045 break;
1046 case MGN_24M:
1047 *rate_config |= RRSR_24M;
1048 break;
1049 case MGN_36M:
1050 *rate_config |= RRSR_36M;
1051 break;
1052 case MGN_48M:
1053 *rate_config |= RRSR_48M;
1054 break;
1055 case MGN_54M:
1056 *rate_config |= RRSR_54M;
1057 break;
1058 }
1059 }
1060 for (i = 0; i < net->rates_ex_len; i++) {
1061 basic_rate = net->rates_ex[i] & 0x7f;
1062 switch (basic_rate) {
1063 case MGN_1M:
1064 *rate_config |= RRSR_1M;
1065 break;
1066 case MGN_2M:
1067 *rate_config |= RRSR_2M;
1068 break;
1069 case MGN_5_5M:
1070 *rate_config |= RRSR_5_5M;
1071 break;
1072 case MGN_11M:
1073 *rate_config |= RRSR_11M;
1074 break;
1075 case MGN_6M:
1076 *rate_config |= RRSR_6M;
1077 break;
1078 case MGN_9M:
1079 *rate_config |= RRSR_9M;
1080 break;
1081 case MGN_12M:
1082 *rate_config |= RRSR_12M;
1083 break;
1084 case MGN_18M:
1085 *rate_config |= RRSR_18M;
1086 break;
1087 case MGN_24M:
1088 *rate_config |= RRSR_24M;
1089 break;
1090 case MGN_36M:
1091 *rate_config |= RRSR_36M;
1092 break;
1093 case MGN_48M:
1094 *rate_config |= RRSR_48M;
1095 break;
1096 case MGN_54M:
1097 *rate_config |= RRSR_54M;
1098 break;
1099 }
1100 }
1101 }
1102
1103 #define SHORT_SLOT_TIME 9
1104 #define NON_SHORT_SLOT_TIME 20
1105
rtl8192_update_cap(struct net_device * dev,u16 cap)1106 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1107 {
1108 u32 tmp = 0;
1109 struct r8192_priv *priv = ieee80211_priv(dev);
1110 struct ieee80211_network *net = &priv->ieee80211->current_network;
1111
1112 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1113 tmp = priv->basic_rate;
1114 if (priv->short_preamble)
1115 tmp |= BRSR_AckShortPmb;
1116 write_nic_dword(dev, RRSR, tmp);
1117
1118 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1119 u8 slot_time = 0;
1120
1121 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1122 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1123 /* short slot time */
1124 slot_time = SHORT_SLOT_TIME;
1125 else /* long slot time */
1126 slot_time = NON_SHORT_SLOT_TIME;
1127 priv->slot_time = slot_time;
1128 write_nic_byte(dev, SLOT_TIME, slot_time);
1129 }
1130 }
1131
rtl8192_net_update(struct net_device * dev)1132 static void rtl8192_net_update(struct net_device *dev)
1133 {
1134 struct r8192_priv *priv = ieee80211_priv(dev);
1135 struct ieee80211_network *net;
1136 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1137 u16 rate_config = 0;
1138
1139 net = &priv->ieee80211->current_network;
1140
1141 rtl8192_config_rate(dev, &rate_config);
1142 priv->basic_rate = rate_config & 0x15f;
1143
1144 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1145 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1146
1147 rtl8192_update_msr(dev);
1148 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1149 write_nic_word(dev, ATIMWND, 2);
1150 write_nic_word(dev, BCN_DMATIME, 1023);
1151 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1152 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1153 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1154 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1155 /* TODO: BcnIFS may required to be changed on ASIC */
1156 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1157
1158 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1159 }
1160 }
1161
1162 /* temporary hw beacon is not used any more.
1163 * open it when necessary
1164 */
rtl819xusb_beacon_tx(struct net_device * dev,u16 tx_rate)1165 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1166 {
1167 }
1168
rtl819xU_tx_cmd(struct net_device * dev,struct sk_buff * skb)1169 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1170 {
1171 struct r8192_priv *priv = ieee80211_priv(dev);
1172 int status;
1173 struct urb *tx_urb;
1174 unsigned int idx_pipe;
1175 struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data;
1176 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1177 u8 queue_index = tcb_desc->queue_index;
1178
1179 atomic_inc(&priv->tx_pending[queue_index]);
1180 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1181 if (!tx_urb) {
1182 dev_kfree_skb(skb);
1183 return -ENOMEM;
1184 }
1185
1186 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1187 /* Tx descriptor ought to be set according to the skb->cb */
1188 pdesc->FirstSeg = 1;
1189 pdesc->LastSeg = 1;
1190 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1191 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1192 pdesc->OWN = 1;
1193 pdesc->LINIP = tcb_desc->bLastIniPkt;
1194
1195 /*---------------------------------------------------------------------
1196 * Fill up USB_OUT_CONTEXT.
1197 *---------------------------------------------------------------------
1198 */
1199 idx_pipe = 0x04;
1200 usb_fill_bulk_urb(tx_urb, priv->udev,
1201 usb_sndbulkpipe(priv->udev, idx_pipe),
1202 skb->data, skb->len, rtl8192_tx_isr, skb);
1203
1204 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1205
1206 if (!status)
1207 return 0;
1208
1209 DMESGE("Error TX CMD URB, error %d", status);
1210 dev_kfree_skb(skb);
1211 usb_free_urb(tx_urb);
1212 return -1;
1213 }
1214
1215 /*
1216 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1217 * in TxFwInfo data structure
1218 * 2006.10.30 by Emily
1219 *
1220 * \param QUEUEID Software Queue
1221 */
MapHwQueueToFirmwareQueue(u8 QueueID)1222 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1223 {
1224 u8 QueueSelect = 0x0; /* default set to */
1225
1226 switch (QueueID) {
1227 case BE_QUEUE:
1228 QueueSelect = QSLT_BE;
1229 break;
1230
1231 case BK_QUEUE:
1232 QueueSelect = QSLT_BK;
1233 break;
1234
1235 case VO_QUEUE:
1236 QueueSelect = QSLT_VO;
1237 break;
1238
1239 case VI_QUEUE:
1240 QueueSelect = QSLT_VI;
1241 break;
1242 case MGNT_QUEUE:
1243 QueueSelect = QSLT_MGNT;
1244 break;
1245
1246 case BEACON_QUEUE:
1247 QueueSelect = QSLT_BEACON;
1248 break;
1249
1250 /* TODO: mark other queue selection until we verify it is OK */
1251 /* TODO: Remove Assertions */
1252 case TXCMD_QUEUE:
1253 QueueSelect = QSLT_CMD;
1254 break;
1255 case HIGH_QUEUE:
1256 QueueSelect = QSLT_HIGH;
1257 break;
1258
1259 default:
1260 RT_TRACE(COMP_ERR,
1261 "TransmitTCB(): Impossible Queue Selection: %d\n",
1262 QueueID);
1263 break;
1264 }
1265 return QueueSelect;
1266 }
1267
MRateToHwRate8190Pci(u8 rate)1268 static u8 MRateToHwRate8190Pci(u8 rate)
1269 {
1270 u8 ret = DESC90_RATE1M;
1271
1272 switch (rate) {
1273 case MGN_1M:
1274 ret = DESC90_RATE1M;
1275 break;
1276 case MGN_2M:
1277 ret = DESC90_RATE2M;
1278 break;
1279 case MGN_5_5M:
1280 ret = DESC90_RATE5_5M;
1281 break;
1282 case MGN_11M:
1283 ret = DESC90_RATE11M;
1284 break;
1285 case MGN_6M:
1286 ret = DESC90_RATE6M;
1287 break;
1288 case MGN_9M:
1289 ret = DESC90_RATE9M;
1290 break;
1291 case MGN_12M:
1292 ret = DESC90_RATE12M;
1293 break;
1294 case MGN_18M:
1295 ret = DESC90_RATE18M;
1296 break;
1297 case MGN_24M:
1298 ret = DESC90_RATE24M;
1299 break;
1300 case MGN_36M:
1301 ret = DESC90_RATE36M;
1302 break;
1303 case MGN_48M:
1304 ret = DESC90_RATE48M;
1305 break;
1306 case MGN_54M:
1307 ret = DESC90_RATE54M;
1308 break;
1309
1310 /* HT rate since here */
1311 case MGN_MCS0:
1312 ret = DESC90_RATEMCS0;
1313 break;
1314 case MGN_MCS1:
1315 ret = DESC90_RATEMCS1;
1316 break;
1317 case MGN_MCS2:
1318 ret = DESC90_RATEMCS2;
1319 break;
1320 case MGN_MCS3:
1321 ret = DESC90_RATEMCS3;
1322 break;
1323 case MGN_MCS4:
1324 ret = DESC90_RATEMCS4;
1325 break;
1326 case MGN_MCS5:
1327 ret = DESC90_RATEMCS5;
1328 break;
1329 case MGN_MCS6:
1330 ret = DESC90_RATEMCS6;
1331 break;
1332 case MGN_MCS7:
1333 ret = DESC90_RATEMCS7;
1334 break;
1335 case MGN_MCS8:
1336 ret = DESC90_RATEMCS8;
1337 break;
1338 case MGN_MCS9:
1339 ret = DESC90_RATEMCS9;
1340 break;
1341 case MGN_MCS10:
1342 ret = DESC90_RATEMCS10;
1343 break;
1344 case MGN_MCS11:
1345 ret = DESC90_RATEMCS11;
1346 break;
1347 case MGN_MCS12:
1348 ret = DESC90_RATEMCS12;
1349 break;
1350 case MGN_MCS13:
1351 ret = DESC90_RATEMCS13;
1352 break;
1353 case MGN_MCS14:
1354 ret = DESC90_RATEMCS14;
1355 break;
1356 case MGN_MCS15:
1357 ret = DESC90_RATEMCS15;
1358 break;
1359 case (0x80 | 0x20):
1360 ret = DESC90_RATEMCS32;
1361 break;
1362
1363 default:
1364 break;
1365 }
1366 return ret;
1367 }
1368
QueryIsShort(u8 TxHT,u8 TxRate,struct cb_desc * tcb_desc)1369 static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc)
1370 {
1371 u8 tmp_Short;
1372
1373 tmp_Short = (TxHT == 1) ?
1374 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1375 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1376
1377 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1378 tmp_Short = 0;
1379
1380 return tmp_Short;
1381 }
1382
tx_zero_isr(struct urb * tx_urb)1383 static void tx_zero_isr(struct urb *tx_urb)
1384 {
1385 }
1386
1387 /*
1388 * The tx procedure is just as following,
1389 * skb->cb will contain all the following information,
1390 * priority, morefrag, rate, &dev.
1391 */
rtl8192_tx(struct net_device * dev,struct sk_buff * skb)1392 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1393 {
1394 struct r8192_priv *priv = ieee80211_priv(dev);
1395 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1396 struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data;
1397 struct tx_fwinfo_819x_usb *tx_fwinfo =
1398 (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1399 struct usb_device *udev = priv->udev;
1400 int pend;
1401 int status, rt = -1;
1402 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1403 unsigned int idx_pipe;
1404
1405 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1406 /* we are locked here so the two atomic_read and inc are executed
1407 * without interleaves
1408 * !!! For debug purpose
1409 */
1410 if (pend > MAX_TX_URB) {
1411 netdev_dbg(dev, "To discard skb packet!\n");
1412 dev_kfree_skb_any(skb);
1413 return -1;
1414 }
1415
1416 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1417 if (!tx_urb) {
1418 dev_kfree_skb_any(skb);
1419 return -ENOMEM;
1420 }
1421
1422 /* Fill Tx firmware info */
1423 memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb));
1424 /* DWORD 0 */
1425 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1426 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1427 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1428 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1429 tcb_desc);
1430 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1431 tx_fwinfo->AllowAggregation = 1;
1432 /* DWORD 1 */
1433 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1434 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1435 } else {
1436 tx_fwinfo->AllowAggregation = 0;
1437 /* DWORD 1 */
1438 tx_fwinfo->RxMF = 0;
1439 tx_fwinfo->RxAMD = 0;
1440 }
1441
1442 /* Protection mode related */
1443 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1444 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1445 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1446 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1447 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1448 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1449 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1450 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1451 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1452
1453 /* Set Bandwidth and sub-channel settings. */
1454 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1455 if (tcb_desc->bPacketBW) {
1456 tx_fwinfo->TxBandwidth = 1;
1457 /* use duplicated mode */
1458 tx_fwinfo->TxSubCarrier = 0;
1459 } else {
1460 tx_fwinfo->TxBandwidth = 0;
1461 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1462 }
1463 } else {
1464 tx_fwinfo->TxBandwidth = 0;
1465 tx_fwinfo->TxSubCarrier = 0;
1466 }
1467
1468 /* Fill Tx descriptor */
1469 memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb));
1470 /* DWORD 0 */
1471 tx_desc->LINIP = 0;
1472 tx_desc->CmdInit = 1;
1473 tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8;
1474 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1475
1476 /*DWORD 1*/
1477 tx_desc->SecCAMID = 0;
1478 tx_desc->RATid = tcb_desc->RATRIndex;
1479 tx_desc->NoEnc = 1;
1480 tx_desc->SecType = 0x0;
1481 if (tcb_desc->bHwSec) {
1482 switch (priv->ieee80211->pairwise_key_type) {
1483 case KEY_TYPE_WEP40:
1484 case KEY_TYPE_WEP104:
1485 tx_desc->SecType = 0x1;
1486 tx_desc->NoEnc = 0;
1487 break;
1488 case KEY_TYPE_TKIP:
1489 tx_desc->SecType = 0x2;
1490 tx_desc->NoEnc = 0;
1491 break;
1492 case KEY_TYPE_CCMP:
1493 tx_desc->SecType = 0x3;
1494 tx_desc->NoEnc = 0;
1495 break;
1496 case KEY_TYPE_NA:
1497 tx_desc->SecType = 0x0;
1498 tx_desc->NoEnc = 1;
1499 break;
1500 }
1501 }
1502
1503 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1504 tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb);
1505
1506 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1507 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1508
1509 /* Fill fields that are required to be initialized in
1510 * all of the descriptors
1511 */
1512 /* DWORD 0 */
1513 tx_desc->FirstSeg = 1;
1514 tx_desc->LastSeg = 1;
1515 tx_desc->OWN = 1;
1516
1517 /* DWORD 2 */
1518 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1519 idx_pipe = 0x5;
1520
1521 /* To submit bulk urb */
1522 usb_fill_bulk_urb(tx_urb, udev,
1523 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1524 skb->len, rtl8192_tx_isr, skb);
1525
1526 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1527 if (!status) {
1528 /* We need to send 0 byte packet whenever
1529 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1530 * been transmitted. Otherwise, it will be halt to wait for
1531 * another packet.
1532 */
1533 bool bSend0Byte = false;
1534 u8 zero = 0;
1535
1536 if (udev->speed == USB_SPEED_HIGH) {
1537 if (skb->len > 0 && skb->len % 512 == 0)
1538 bSend0Byte = true;
1539 } else {
1540 if (skb->len > 0 && skb->len % 64 == 0)
1541 bSend0Byte = true;
1542 }
1543 if (bSend0Byte) {
1544 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1545 if (!tx_urb_zero) {
1546 rt = -ENOMEM;
1547 goto error;
1548 }
1549 usb_fill_bulk_urb(tx_urb_zero, udev,
1550 usb_sndbulkpipe(udev, idx_pipe),
1551 &zero, 0, tx_zero_isr, dev);
1552 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1553 if (status) {
1554 RT_TRACE(COMP_ERR,
1555 "Error TX URB for zero byte %d, error %d",
1556 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1557 status);
1558 goto error;
1559 }
1560 }
1561 netif_trans_update(dev);
1562 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1563 return 0;
1564 }
1565
1566 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1567 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1568 status);
1569
1570 error:
1571 dev_kfree_skb_any(skb);
1572 usb_free_urb(tx_urb);
1573 usb_free_urb(tx_urb_zero);
1574 return rt;
1575 }
1576
rtl8192_usb_initendpoints(struct net_device * dev)1577 static short rtl8192_usb_initendpoints(struct net_device *dev)
1578 {
1579 struct r8192_priv *priv = ieee80211_priv(dev);
1580
1581 priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *),
1582 GFP_KERNEL);
1583 if (!priv->rx_urb)
1584 return -ENOMEM;
1585
1586 #ifndef JACKSON_NEW_RX
1587 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1588 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1589 if (!priv->rx_urb[i])
1590 return -ENOMEM;
1591
1592 priv->rx_urb[i]->transfer_buffer =
1593 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1594 if (!priv->rx_urb[i]->transfer_buffer)
1595 return -ENOMEM;
1596
1597 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1598 }
1599 #endif
1600
1601 #ifdef THOMAS_BEACON
1602 {
1603 long align = 0;
1604 void *oldaddr, *newaddr;
1605
1606 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1607 if (!priv->rx_urb[16])
1608 return -ENOMEM;
1609 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1610 if (!priv->oldaddr)
1611 return -ENOMEM;
1612 oldaddr = priv->oldaddr;
1613 align = ((long)oldaddr) & 3;
1614 if (align) {
1615 newaddr = oldaddr + 4 - align;
1616 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1617 } else {
1618 newaddr = oldaddr;
1619 priv->rx_urb[16]->transfer_buffer_length = 16;
1620 }
1621 priv->rx_urb[16]->transfer_buffer = newaddr;
1622 }
1623 #endif
1624
1625 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1626 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1627 GFP_KERNEL);
1628 if (!priv->pp_rxskb) {
1629 kfree(priv->rx_urb);
1630
1631 priv->pp_rxskb = NULL;
1632 priv->rx_urb = NULL;
1633
1634 DMESGE("Endpoint Alloc Failure");
1635 return -ENOMEM;
1636 }
1637
1638 netdev_dbg(dev, "End of initendpoints\n");
1639 return 0;
1640 }
1641
1642 #ifdef THOMAS_BEACON
rtl8192_usb_deleteendpoints(struct net_device * dev)1643 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1644 {
1645 int i;
1646 struct r8192_priv *priv = ieee80211_priv(dev);
1647
1648 if (priv->rx_urb) {
1649 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1650 usb_kill_urb(priv->rx_urb[i]);
1651 usb_free_urb(priv->rx_urb[i]);
1652 }
1653 kfree(priv->rx_urb);
1654 priv->rx_urb = NULL;
1655 }
1656 kfree(priv->oldaddr);
1657 priv->oldaddr = NULL;
1658
1659 kfree(priv->pp_rxskb);
1660 priv->pp_rxskb = NULL;
1661 }
1662 #else
rtl8192_usb_deleteendpoints(struct net_device * dev)1663 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1664 {
1665 int i;
1666 struct r8192_priv *priv = ieee80211_priv(dev);
1667
1668 #ifndef JACKSON_NEW_RX
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 kfree(priv->rx_urb[i]->transfer_buffer);
1674 usb_free_urb(priv->rx_urb[i]);
1675 }
1676 kfree(priv->rx_urb);
1677 priv->rx_urb = NULL;
1678 }
1679 #else
1680 kfree(priv->rx_urb);
1681 priv->rx_urb = NULL;
1682 kfree(priv->oldaddr);
1683 priv->oldaddr = NULL;
1684
1685 kfree(priv->pp_rxskb);
1686 priv->pp_rxskb = 0;
1687
1688 #endif
1689 }
1690 #endif
1691
1692 static void rtl8192_update_ratr_table(struct net_device *dev);
rtl8192_link_change(struct net_device * dev)1693 static void rtl8192_link_change(struct net_device *dev)
1694 {
1695 struct r8192_priv *priv = ieee80211_priv(dev);
1696 struct ieee80211_device *ieee = priv->ieee80211;
1697
1698 if (ieee->state == IEEE80211_LINKED) {
1699 rtl8192_net_update(dev);
1700 rtl8192_update_ratr_table(dev);
1701 /* Add this as in pure N mode, wep encryption will use software
1702 * way, but there is no chance to set this as wep will not set
1703 * group key in wext.
1704 */
1705 if (ieee->pairwise_key_type == KEY_TYPE_WEP40 ||
1706 ieee->pairwise_key_type == KEY_TYPE_WEP104)
1707 EnableHWSecurityConfig8192(dev);
1708 }
1709 /*update timing params*/
1710 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1711 u32 reg = 0;
1712
1713 read_nic_dword(dev, RCR, ®);
1714 if (priv->ieee80211->state == IEEE80211_LINKED)
1715 priv->ReceiveConfig = reg |= RCR_CBSSID;
1716 else
1717 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1718 write_nic_dword(dev, RCR, reg);
1719 }
1720 }
1721
1722 static const struct ieee80211_qos_parameters def_qos_parameters = {
1723 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1724 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1725 {2, 2, 2, 2},/* aifs */
1726 {0, 0, 0, 0},/* flags */
1727 {0, 0, 0, 0} /* tx_op_limit */
1728 };
1729
rtl8192_update_beacon(struct work_struct * work)1730 static void rtl8192_update_beacon(struct work_struct *work)
1731 {
1732 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1733 update_beacon_wq.work);
1734 struct net_device *dev = priv->ieee80211->dev;
1735 struct ieee80211_device *ieee = priv->ieee80211;
1736 struct ieee80211_network *net = &ieee->current_network;
1737
1738 if (ieee->pHTInfo->bCurrentHTSupport)
1739 HTUpdateSelfAndPeerSetting(ieee, net);
1740 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1741 net->bssht.bdRT2RTLongSlotTime;
1742 rtl8192_update_cap(dev, net->capability);
1743 }
1744
1745 /*
1746 * background support to run QoS activate functionality
1747 */
1748 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1749 EDCAPARA_VI, EDCAPARA_VO};
rtl8192_qos_activate(struct work_struct * work)1750 static void rtl8192_qos_activate(struct work_struct *work)
1751 {
1752 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1753 qos_activate);
1754 struct net_device *dev = priv->ieee80211->dev;
1755 struct ieee80211_qos_parameters *qos_parameters =
1756 &priv->ieee80211->current_network.qos_data.parameters;
1757 u8 mode = priv->ieee80211->current_network.mode;
1758 u32 u1bAIFS;
1759 u32 u4bAcParam;
1760 u32 op_limit;
1761 u32 cw_max;
1762 u32 cw_min;
1763 int i;
1764
1765 mutex_lock(&priv->mutex);
1766 if (priv->ieee80211->state != IEEE80211_LINKED)
1767 goto success;
1768 RT_TRACE(COMP_QOS,
1769 "qos active process with associate response received\n");
1770 /* It better set slot time at first
1771 *
1772 * For we just support b/g mode at present, let the slot time at
1773 * 9/20 selection
1774 *
1775 * update the ac parameter to related registers
1776 */
1777 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1778 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1779 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1780 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1781 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1782 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1783 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1784 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1785 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1786 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1787 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1788 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1789 }
1790
1791 success:
1792 mutex_unlock(&priv->mutex);
1793 }
1794
rtl8192_qos_handle_probe_response(struct r8192_priv * priv,int active_network,struct ieee80211_network * network)1795 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1796 int active_network,
1797 struct ieee80211_network *network)
1798 {
1799 int ret = 0;
1800 u32 size = sizeof(struct ieee80211_qos_parameters);
1801
1802 if (priv->ieee80211->state != IEEE80211_LINKED)
1803 return ret;
1804
1805 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1806 return ret;
1807
1808 if (network->flags & NETWORK_HAS_QOS_MASK) {
1809 if (active_network &&
1810 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1811 network->qos_data.active = network->qos_data.supported;
1812
1813 if ((network->qos_data.active == 1) && (active_network == 1) &&
1814 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1815 (network->qos_data.old_param_count !=
1816 network->qos_data.param_count)) {
1817 network->qos_data.old_param_count =
1818 network->qos_data.param_count;
1819 schedule_work(&priv->qos_activate);
1820 RT_TRACE(COMP_QOS,
1821 "QoS parameters change call qos_activate\n");
1822 }
1823 } else {
1824 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1825 &def_qos_parameters, size);
1826
1827 if ((network->qos_data.active == 1) && (active_network == 1)) {
1828 schedule_work(&priv->qos_activate);
1829 RT_TRACE(COMP_QOS,
1830 "QoS was disabled call qos_activate\n");
1831 }
1832 network->qos_data.active = 0;
1833 network->qos_data.supported = 0;
1834 }
1835
1836 return 0;
1837 }
1838
1839 /* handle and manage frame from beacon and probe response */
rtl8192_handle_beacon(struct net_device * dev,struct ieee80211_beacon * beacon,struct ieee80211_network * network)1840 static int rtl8192_handle_beacon(struct net_device *dev,
1841 struct ieee80211_beacon *beacon,
1842 struct ieee80211_network *network)
1843 {
1844 struct r8192_priv *priv = ieee80211_priv(dev);
1845
1846 rtl8192_qos_handle_probe_response(priv, 1, network);
1847 schedule_delayed_work(&priv->update_beacon_wq, 0);
1848 return 0;
1849 }
1850
1851 /*
1852 * handling the beaconing responses. if we get different QoS setting
1853 * off the network from the associated setting, adjust the QoS
1854 * setting
1855 */
rtl8192_qos_association_resp(struct r8192_priv * priv,struct ieee80211_network * network)1856 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1857 struct ieee80211_network *network)
1858 {
1859 unsigned long flags;
1860 u32 size = sizeof(struct ieee80211_qos_parameters);
1861 int set_qos_param = 0;
1862
1863 if (!priv || !network)
1864 return 0;
1865
1866 if (priv->ieee80211->state != IEEE80211_LINKED)
1867 return 0;
1868
1869 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1870 return 0;
1871
1872 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1873 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1874 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1875 &network->qos_data.parameters,
1876 sizeof(struct ieee80211_qos_parameters));
1877 priv->ieee80211->current_network.qos_data.active = 1;
1878 set_qos_param = 1;
1879 /* update qos parameter for current network */
1880 priv->ieee80211->current_network.qos_data.old_param_count =
1881 priv->ieee80211->current_network.qos_data.param_count;
1882 priv->ieee80211->current_network.qos_data.param_count =
1883 network->qos_data.param_count;
1884 } else {
1885 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1886 &def_qos_parameters, size);
1887 priv->ieee80211->current_network.qos_data.active = 0;
1888 priv->ieee80211->current_network.qos_data.supported = 0;
1889 set_qos_param = 1;
1890 }
1891
1892 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1893
1894 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1895 network->flags,
1896 priv->ieee80211->current_network.qos_data.active);
1897 if (set_qos_param == 1)
1898 schedule_work(&priv->qos_activate);
1899
1900 return 0;
1901 }
1902
rtl8192_handle_assoc_response(struct net_device * dev,struct ieee80211_assoc_response_frame * resp,struct ieee80211_network * network)1903 static int rtl8192_handle_assoc_response(struct net_device *dev,
1904 struct ieee80211_assoc_response_frame *resp,
1905 struct ieee80211_network *network)
1906 {
1907 struct r8192_priv *priv = ieee80211_priv(dev);
1908
1909 rtl8192_qos_association_resp(priv, network);
1910 return 0;
1911 }
1912
rtl8192_update_ratr_table(struct net_device * dev)1913 static void rtl8192_update_ratr_table(struct net_device *dev)
1914 {
1915 struct r8192_priv *priv = ieee80211_priv(dev);
1916 struct ieee80211_device *ieee = priv->ieee80211;
1917 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
1918 u32 ratr_value = 0;
1919 u8 rate_index = 0;
1920
1921 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
1922 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
1923 switch (ieee->mode) {
1924 case IEEE_A:
1925 ratr_value &= 0x00000FF0;
1926 break;
1927 case IEEE_B:
1928 ratr_value &= 0x0000000F;
1929 break;
1930 case IEEE_G:
1931 ratr_value &= 0x00000FF7;
1932 break;
1933 case IEEE_N_24G:
1934 case IEEE_N_5G:
1935 if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) {
1936 ratr_value &= 0x0007F007;
1937 } else {
1938 if (priv->rf_type == RF_1T2R)
1939 ratr_value &= 0x000FF007;
1940 else
1941 ratr_value &= 0x0F81F007;
1942 }
1943 break;
1944 default:
1945 break;
1946 }
1947 ratr_value &= 0x0FFFFFFF;
1948 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
1949 ratr_value |= 0x80000000;
1950 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
1951 ieee->pHTInfo->bCurShortGI20MHz)
1952 ratr_value |= 0x80000000;
1953 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
1954 write_nic_byte(dev, UFWP, 1);
1955 }
1956
1957 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
1958 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
GetNmodeSupportBySecCfg8192(struct net_device * dev)1959 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
1960 {
1961 struct r8192_priv *priv = ieee80211_priv(dev);
1962 struct ieee80211_device *ieee = priv->ieee80211;
1963 struct ieee80211_network *network = &ieee->current_network;
1964 int wpa_ie_len = ieee->wpa_ie_len;
1965 struct ieee80211_crypt_data *crypt;
1966 int encrypt;
1967
1968 crypt = ieee->crypt[ieee->tx_keyidx];
1969 /* we use connecting AP's capability instead of only security config
1970 * on our driver to distinguish whether it should use N mode or G mode
1971 */
1972 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
1973 (ieee->host_encrypt && crypt && crypt->ops &&
1974 (strcmp(crypt->ops->name, "WEP") == 0));
1975
1976 /* simply judge */
1977 if (encrypt && (wpa_ie_len == 0)) {
1978 /* wep encryption, no N mode setting */
1979 return false;
1980 } else if ((wpa_ie_len != 0)) {
1981 /* parse pairwise key type */
1982 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))))
1983 return true;
1984 else
1985 return false;
1986 } else {
1987 return true;
1988 }
1989
1990 return true;
1991 }
1992
GetHalfNmodeSupportByAPs819xUsb(struct net_device * dev)1993 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
1994 {
1995 struct r8192_priv *priv = ieee80211_priv(dev);
1996
1997 return priv->ieee80211->bHalfWirelessN24GMode;
1998 }
1999
rtl8192_refresh_supportrate(struct r8192_priv * priv)2000 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2001 {
2002 struct ieee80211_device *ieee = priv->ieee80211;
2003 /* We do not consider set support rate for ABG mode, only
2004 * HT MCS rate is set here.
2005 */
2006 if (ieee->mode == WIRELESS_MODE_N_24G ||
2007 ieee->mode == WIRELESS_MODE_N_5G)
2008 memcpy(ieee->Regdot11HTOperationalRateSet,
2009 ieee->RegHTSuppRateSet, 16);
2010 else
2011 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2012 }
2013
rtl8192_getSupportedWireleeMode(struct net_device * dev)2014 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2015 {
2016 struct r8192_priv *priv = ieee80211_priv(dev);
2017 u8 ret = 0;
2018
2019 switch (priv->rf_chip) {
2020 case RF_8225:
2021 case RF_8256:
2022 case RF_PSEUDO_11N:
2023 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2024 break;
2025 case RF_8258:
2026 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2027 break;
2028 default:
2029 ret = WIRELESS_MODE_B;
2030 break;
2031 }
2032 return ret;
2033 }
2034
rtl8192_SetWirelessMode(struct net_device * dev,u8 wireless_mode)2035 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2036 {
2037 struct r8192_priv *priv = ieee80211_priv(dev);
2038 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2039
2040 if (wireless_mode == WIRELESS_MODE_AUTO ||
2041 (wireless_mode & bSupportMode) == 0) {
2042 if (bSupportMode & WIRELESS_MODE_N_24G) {
2043 wireless_mode = WIRELESS_MODE_N_24G;
2044 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2045 wireless_mode = WIRELESS_MODE_N_5G;
2046 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2047 wireless_mode = WIRELESS_MODE_A;
2048 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2049 wireless_mode = WIRELESS_MODE_G;
2050 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2051 wireless_mode = WIRELESS_MODE_B;
2052 } else {
2053 RT_TRACE(COMP_ERR,
2054 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2055 __func__, bSupportMode);
2056 wireless_mode = WIRELESS_MODE_B;
2057 }
2058 }
2059 priv->ieee80211->mode = wireless_mode;
2060
2061 if (wireless_mode == WIRELESS_MODE_N_24G ||
2062 wireless_mode == WIRELESS_MODE_N_5G)
2063 priv->ieee80211->pHTInfo->bEnableHT = 1;
2064 else
2065 priv->ieee80211->pHTInfo->bEnableHT = 0;
2066 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2067 rtl8192_refresh_supportrate(priv);
2068 }
2069
2070 /* init priv variables here. only non_zero value should be initialized here. */
rtl8192_init_priv_variable(struct net_device * dev)2071 static int rtl8192_init_priv_variable(struct net_device *dev)
2072 {
2073 struct r8192_priv *priv = ieee80211_priv(dev);
2074 u8 i;
2075
2076 priv->card_8192 = NIC_8192U;
2077 priv->chan = 1; /* set to channel 1 */
2078 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2079 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2080 priv->ieee80211->ieee_up = 0;
2081 priv->retry_rts = DEFAULT_RETRY_RTS;
2082 priv->retry_data = DEFAULT_RETRY_DATA;
2083 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2084 priv->ieee80211->rate = 110; /* 11 mbps */
2085 priv->ieee80211->short_slot = 1;
2086 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2087 priv->CckPwEnl = 6;
2088 /* for silent reset */
2089 priv->IrpPendingCount = 1;
2090 priv->ResetProgress = RESET_TYPE_NORESET;
2091 priv->bForcedSilentReset = false;
2092 priv->bDisableNormalResetCheck = false;
2093 priv->force_reset = false;
2094
2095 /* we don't use FW read/write RF until stable firmware is available. */
2096 priv->ieee80211->FwRWRF = 0;
2097 priv->ieee80211->current_network.beacon_interval =
2098 DEFAULT_BEACONINTERVAL;
2099 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2100 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2101 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2102 IEEE_SOFTMAC_BEACONS;
2103
2104 priv->ieee80211->active_scan = 1;
2105 priv->ieee80211->modulation =
2106 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2107 priv->ieee80211->host_encrypt = 1;
2108 priv->ieee80211->host_decrypt = 1;
2109 priv->ieee80211->start_send_beacons = NULL;
2110 priv->ieee80211->stop_send_beacons = NULL;
2111 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2112 priv->ieee80211->set_chan = rtl8192_set_chan;
2113 priv->ieee80211->link_change = rtl8192_link_change;
2114 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2115 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2116 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2117 priv->ieee80211->init_wmmparam_flag = 0;
2118 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2119 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2120 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2121 priv->ieee80211->qos_support = 1;
2122
2123 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2124 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2125 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2126
2127 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2128 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2129 GetHalfNmodeSupportByAPs819xUsb;
2130 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2131
2132 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2133 priv->card_type = USB;
2134 priv->ShortRetryLimit = 0x30;
2135 priv->LongRetryLimit = 0x30;
2136 priv->EarlyRxThreshold = 7;
2137 priv->enable_gpio0 = 0;
2138 priv->TransmitConfig =
2139 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2140 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2141 /* Short retry limit */
2142 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2143 /* Long retry limit */
2144 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2145 /* FALSE: HW provides PLCP length and LENGEXT
2146 * TRUE: SW provides them
2147 */
2148 (false ? TCR_SAT : 0);
2149 priv->ReceiveConfig =
2150 /* accept management/data */
2151 RCR_AMF | RCR_ADF |
2152 /* accept control frame for SW AP needs PS-poll */
2153 RCR_ACF |
2154 /* accept BC/MC/UC */
2155 RCR_AB | RCR_AM | RCR_APM |
2156 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2157 ((u32)7 << RCR_MXDMA_OFFSET) |
2158 /* Rx FIFO Threshold, 7: No Rx threshold. */
2159 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2160 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2161
2162 priv->AcmControl = 0;
2163 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2164 if (!priv->pFirmware)
2165 return -ENOMEM;
2166
2167 /* rx related queue */
2168 skb_queue_head_init(&priv->rx_queue);
2169 skb_queue_head_init(&priv->skb_queue);
2170
2171 /* Tx related queue */
2172 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2173 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2174 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2175 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2176 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2177 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2178 priv->rf_set_chan = rtl8192_phy_SwChnl;
2179
2180 return 0;
2181 }
2182
2183 /* init lock here */
rtl8192_init_priv_lock(struct r8192_priv * priv)2184 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2185 {
2186 spin_lock_init(&priv->tx_lock);
2187 spin_lock_init(&priv->irq_lock);
2188 mutex_init(&priv->wx_mutex);
2189 mutex_init(&priv->mutex);
2190 }
2191
2192 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2193
2194 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t);
2195 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2196 #define DRV_NAME "wlan0"
rtl8192_init_priv_task(struct net_device * dev)2197 static void rtl8192_init_priv_task(struct net_device *dev)
2198 {
2199 struct r8192_priv *priv = ieee80211_priv(dev);
2200
2201 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2202
2203 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2204 rtl819x_watchdog_wqcallback);
2205 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2206 dm_txpower_trackingcallback);
2207 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2208 dm_rf_pathcheck_workitemcallback);
2209 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2210 rtl8192_update_beacon);
2211 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2212 InitialGainOperateWorkItemCallBack);
2213 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2214
2215 tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet);
2216 }
2217
rtl8192_get_eeprom_size(struct net_device * dev)2218 static void rtl8192_get_eeprom_size(struct net_device *dev)
2219 {
2220 u16 curCR = 0;
2221 struct r8192_priv *priv = ieee80211_priv(dev);
2222
2223 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2224 read_nic_word_E(dev, EPROM_CMD, &curCR);
2225 RT_TRACE(COMP_EPROM,
2226 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2227 /* whether need I consider BIT(5?) */
2228 priv->epromtype =
2229 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2230 RT_TRACE(COMP_EPROM,
2231 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2232 }
2233
2234 /* used to swap endian. as ntohl & htonl are not necessary
2235 * to swap endian, so use this instead.
2236 */
endian_swap(u16 * data)2237 static inline u16 endian_swap(u16 *data)
2238 {
2239 u16 tmp = *data;
2240 *data = (tmp >> 8) | (tmp << 8);
2241 return *data;
2242 }
2243
rtl8192_read_eeprom_info(struct net_device * dev)2244 static int rtl8192_read_eeprom_info(struct net_device *dev)
2245 {
2246 u16 wEPROM_ID = 0;
2247 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2248 u8 bLoad_From_EEPOM = false;
2249 struct r8192_priv *priv = ieee80211_priv(dev);
2250 u16 tmpValue = 0;
2251 int i;
2252 int ret;
2253
2254 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2255 ret = eprom_read(dev, 0); /* first read EEPROM ID out; */
2256 if (ret < 0)
2257 return ret;
2258 wEPROM_ID = (u16)ret;
2259 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2260
2261 if (wEPROM_ID != RTL8190_EEPROM_ID)
2262 RT_TRACE(COMP_ERR,
2263 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2264 wEPROM_ID, RTL8190_EEPROM_ID);
2265 else
2266 bLoad_From_EEPOM = true;
2267
2268 if (bLoad_From_EEPOM) {
2269 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2270 ret = eprom_read(dev, EEPROM_VID >> 1);
2271 if (ret < 0)
2272 return ret;
2273 tmpValue = (u16)ret;
2274 priv->eeprom_vid = endian_swap(&tmpValue);
2275 ret = eprom_read(dev, EEPROM_PID >> 1);
2276 if (ret < 0)
2277 return ret;
2278 priv->eeprom_pid = (u16)ret;
2279 ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1);
2280 if (ret < 0)
2281 return ret;
2282 tmpValue = (u16)ret;
2283 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2284 priv->btxpowerdata_readfromEEPORM = true;
2285 ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8;
2286 if (ret < 0)
2287 return ret;
2288 priv->eeprom_CustomerID = (u16)ret;
2289 } else {
2290 priv->eeprom_vid = 0;
2291 priv->eeprom_pid = 0;
2292 priv->card_8192_version = VERSION_819XU_B;
2293 priv->eeprom_ChannelPlan = 0;
2294 priv->eeprom_CustomerID = 0;
2295 }
2296 RT_TRACE(COMP_EPROM,
2297 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2298 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2299 priv->eeprom_ChannelPlan);
2300 /* set channelplan from eeprom */
2301 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2302 if (bLoad_From_EEPOM) {
2303 u8 addr[ETH_ALEN];
2304
2305 for (i = 0; i < 6; i += 2) {
2306 ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2307 if (ret < 0)
2308 return ret;
2309 *(u16 *)(&addr[i]) = (u16)ret;
2310 }
2311 eth_hw_addr_set(dev, addr);
2312 } else {
2313 eth_hw_addr_set(dev, bMac_Tmp_Addr);
2314 /* should I set IDR0 here? */
2315 }
2316 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2317 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2318 priv->rf_chip = RF_8256;
2319
2320 if (priv->card_8192_version == VERSION_819XU_A) {
2321 /* read Tx power gain offset of legacy OFDM to HT rate */
2322 if (bLoad_From_EEPOM) {
2323 ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1));
2324 if (ret < 0)
2325 return ret;
2326 priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8;
2327 } else
2328 priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER;
2329 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2330 /* read ThermalMeter from EEPROM */
2331 if (bLoad_From_EEPOM) {
2332 ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1));
2333 if (ret < 0)
2334 return ret;
2335 priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff);
2336 } else
2337 priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER;
2338 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2339 /* for tx power track */
2340 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2341 /* read antenna tx power offset of B/C/D to A from EEPROM */
2342 if (bLoad_From_EEPOM) {
2343 ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1));
2344 if (ret < 0)
2345 return ret;
2346 priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8;
2347 } else
2348 priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF;
2349 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2350 /* Read CrystalCap from EEPROM */
2351 if (bLoad_From_EEPOM) {
2352 ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1));
2353 if (ret < 0)
2354 return ret;
2355 priv->EEPROMCrystalCap = (u16)ret & 0x0f;
2356 } else
2357 priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP;
2358 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2359 /* get per-channel Tx power level */
2360 if (bLoad_From_EEPOM) {
2361 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1));
2362 if (ret < 0)
2363 return ret;
2364 priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8;
2365 } else
2366 priv->EEPROM_Def_Ver = 1;
2367 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2368 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2369 if (bLoad_From_EEPOM) {
2370 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1));
2371 if (ret < 0)
2372 return ret;
2373 priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8;
2374 } else
2375 priv->EEPROMTxPowerLevelCCK = 0x10;
2376 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2377 for (i = 0; i < 3; i++) {
2378 if (bLoad_From_EEPOM) {
2379 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1);
2380 if (ret < 0)
2381 return ret;
2382 if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0)
2383 tmpValue = (u16)ret & 0x00ff;
2384 else
2385 tmpValue = ((u16)ret & 0xff00) >> 8;
2386 } else {
2387 tmpValue = 0x10;
2388 }
2389 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2390 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2391 }
2392 } else if (priv->EEPROM_Def_Ver == 1) {
2393 if (bLoad_From_EEPOM) {
2394 ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1);
2395 if (ret < 0)
2396 return ret;
2397 tmpValue = ((u16)ret & 0xff00) >> 8;
2398 } else {
2399 tmpValue = 0x10;
2400 }
2401 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2402
2403 if (bLoad_From_EEPOM) {
2404 ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1);
2405 if (ret < 0)
2406 return ret;
2407 tmpValue = (u16)ret;
2408 } else
2409 tmpValue = 0x1010;
2410 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2411 if (bLoad_From_EEPOM)
2412 tmpValue = eprom_read(dev,
2413 EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1);
2414 else
2415 tmpValue = 0x1010;
2416 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2417 if (bLoad_From_EEPOM)
2418 tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1);
2419 else
2420 tmpValue = 0x10;
2421 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2422 } /* endif EEPROM_Def_Ver == 1 */
2423
2424 /* update HAL variables */
2425 for (i = 0; i < 14; i++) {
2426 if (i <= 3)
2427 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2428 else if (i >= 4 && i <= 9)
2429 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2430 else
2431 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2432 }
2433
2434 for (i = 0; i < 14; i++) {
2435 if (priv->EEPROM_Def_Ver == 0) {
2436 if (i <= 3)
2437 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2438 else if (i >= 4 && i <= 9)
2439 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2440 else
2441 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2442 } else if (priv->EEPROM_Def_Ver == 1) {
2443 if (i <= 3)
2444 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2445 else if (i >= 4 && i <= 9)
2446 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2447 else
2448 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2449 }
2450 }
2451 priv->TxPowerDiff = priv->EEPROMPwDiff;
2452 /* Antenna B gain offset to antenna A, bit0~3 */
2453 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2454 /* Antenna C gain offset to antenna A, bit4~7 */
2455 priv->AntennaTxPwDiff[1] =
2456 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2457 /* CrystalCap, bit12~15 */
2458 priv->CrystalCap = priv->EEPROMCrystalCap;
2459 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2460 * 92U does not enable TX power tracking.
2461 */
2462 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2463 } /* end if VersionID == VERSION_819XU_A */
2464
2465 /* for dlink led */
2466 switch (priv->eeprom_CustomerID) {
2467 case EEPROM_CID_RUNTOP:
2468 priv->CustomerID = RT_CID_819x_RUNTOP;
2469 break;
2470
2471 case EEPROM_CID_DLINK:
2472 priv->CustomerID = RT_CID_DLINK;
2473 break;
2474
2475 default:
2476 priv->CustomerID = RT_CID_DEFAULT;
2477 break;
2478 }
2479
2480 switch (priv->CustomerID) {
2481 case RT_CID_819x_RUNTOP:
2482 priv->LedStrategy = SW_LED_MODE2;
2483 break;
2484
2485 case RT_CID_DLINK:
2486 priv->LedStrategy = SW_LED_MODE4;
2487 break;
2488
2489 default:
2490 priv->LedStrategy = SW_LED_MODE0;
2491 break;
2492 }
2493
2494 if (priv->rf_type == RF_1T2R)
2495 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2496 else
2497 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2498
2499 /* We can only know RF type in the function. So we have to init
2500 * DIG RATR table again.
2501 */
2502 init_rate_adaptive(dev);
2503
2504 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2505
2506 return 0;
2507 }
2508
rtl8192_get_channel_map(struct net_device * dev)2509 static short rtl8192_get_channel_map(struct net_device *dev)
2510 {
2511 struct r8192_priv *priv = ieee80211_priv(dev);
2512
2513 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2514 netdev_err(dev,
2515 "rtl8180_init: Error channel plan! Set to default.\n");
2516 priv->ChannelPlan = 0;
2517 }
2518 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2519
2520 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2521 return 0;
2522 }
2523
rtl8192_init(struct net_device * dev)2524 static short rtl8192_init(struct net_device *dev)
2525 {
2526 struct r8192_priv *priv = ieee80211_priv(dev);
2527 int err;
2528
2529 memset(&(priv->stats), 0, sizeof(struct Stats));
2530 memset(priv->txqueue_to_outpipemap, 0, 9);
2531 #ifdef PIPE12
2532 {
2533 int i = 0;
2534 static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2535
2536 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2537 }
2538 #else
2539 {
2540 static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2541
2542 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2543 }
2544 #endif
2545 err = rtl8192_init_priv_variable(dev);
2546 if (err)
2547 return err;
2548
2549 rtl8192_init_priv_lock(priv);
2550 rtl8192_init_priv_task(dev);
2551 rtl8192_get_eeprom_size(dev);
2552 err = rtl8192_read_eeprom_info(dev);
2553 if (err) {
2554 DMESG("Reading EEPROM info failed");
2555 return err;
2556 }
2557 rtl8192_get_channel_map(dev);
2558 init_hal_dm(dev);
2559 timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
2560 if (rtl8192_usb_initendpoints(dev) != 0) {
2561 DMESG("Endopoints initialization failed");
2562 return -ENOMEM;
2563 }
2564
2565 return 0;
2566 }
2567
2568 /******************************************************************************
2569 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2570 * not to do all the hw config as its name says
2571 * input: net_device dev
2572 * output: none
2573 * return: none
2574 * notice: This part need to modified according to the rate set we filtered
2575 * ****************************************************************************/
rtl8192_hwconfig(struct net_device * dev)2576 static void rtl8192_hwconfig(struct net_device *dev)
2577 {
2578 u32 regRATR = 0, regRRSR = 0;
2579 u8 regBwOpMode = 0, regTmp = 0;
2580 struct r8192_priv *priv = ieee80211_priv(dev);
2581 u32 ratr_value = 0;
2582
2583 /* Set RRSR, RATR, and BW_OPMODE registers */
2584 switch (priv->ieee80211->mode) {
2585 case WIRELESS_MODE_B:
2586 regBwOpMode = BW_OPMODE_20MHZ;
2587 regRATR = RATE_ALL_CCK;
2588 regRRSR = RATE_ALL_CCK;
2589 break;
2590 case WIRELESS_MODE_A:
2591 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2592 regRATR = RATE_ALL_OFDM_AG;
2593 regRRSR = RATE_ALL_OFDM_AG;
2594 break;
2595 case WIRELESS_MODE_G:
2596 regBwOpMode = BW_OPMODE_20MHZ;
2597 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2598 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2599 break;
2600 case WIRELESS_MODE_AUTO:
2601 regBwOpMode = BW_OPMODE_20MHZ;
2602 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2603 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2604 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2605 break;
2606 case WIRELESS_MODE_N_24G:
2607 /* It support CCK rate by default. CCK rate will be filtered
2608 * out only when associated AP does not support it.
2609 */
2610 regBwOpMode = BW_OPMODE_20MHZ;
2611 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2612 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2613 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2614 break;
2615 case WIRELESS_MODE_N_5G:
2616 regBwOpMode = BW_OPMODE_5G;
2617 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2618 RATE_ALL_OFDM_2SS;
2619 regRRSR = RATE_ALL_OFDM_AG;
2620 break;
2621 }
2622
2623 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2624 ratr_value = regRATR;
2625 if (priv->rf_type == RF_1T2R)
2626 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2627 write_nic_dword(dev, RATR0, ratr_value);
2628 write_nic_byte(dev, UFWP, 1);
2629 read_nic_byte(dev, 0x313, ®Tmp);
2630 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2631 write_nic_dword(dev, RRSR, regRRSR);
2632
2633 /* Set Retry Limit here */
2634 write_nic_word(dev, RETRY_LIMIT,
2635 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2636 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2637 /* Set Contention Window here */
2638
2639 /* Set Tx AGC */
2640
2641 /* Set Tx Antenna including Feedback control */
2642
2643 /* Set Auto Rate fallback control */
2644 }
2645
2646 /* InitializeAdapter and PhyCfg */
rtl8192_adapter_start(struct net_device * dev)2647 static bool rtl8192_adapter_start(struct net_device *dev)
2648 {
2649 struct r8192_priv *priv = ieee80211_priv(dev);
2650 u32 dwRegRead = 0;
2651 bool init_status = true;
2652 u8 SECR_value = 0x0;
2653 u8 tmp;
2654
2655 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2656 priv->Rf_Mode = RF_OP_By_SW_3wire;
2657 /* for ASIC power on sequence */
2658 write_nic_byte_E(dev, 0x5f, 0x80);
2659 mdelay(50);
2660 write_nic_byte_E(dev, 0x5f, 0xf0);
2661 write_nic_byte_E(dev, 0x5d, 0x00);
2662 write_nic_byte_E(dev, 0x5e, 0x80);
2663 write_nic_byte(dev, 0x17, 0x37);
2664 mdelay(10);
2665 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2666 /* config CPUReset Register */
2667 /* Firmware Reset or not? */
2668 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2669 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2670
2671 write_nic_dword(dev, CPU_GEN, dwRegRead);
2672 /* config BB. */
2673 rtl8192_BBConfig(dev);
2674
2675 /* Loopback mode or not */
2676 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2677
2678 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2679 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2680 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2681 CPU_GEN_NO_LOOPBACK_SET;
2682 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2683 dwRegRead |= CPU_CCK_LOOPBACK;
2684 else
2685 RT_TRACE(COMP_ERR,
2686 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2687 __func__, priv->LoopbackMode);
2688
2689 write_nic_dword(dev, CPU_GEN, dwRegRead);
2690
2691 /* after reset cpu, we need wait for a seconds to write in register. */
2692 udelay(500);
2693
2694 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2695 read_nic_byte_E(dev, 0x5f, &tmp);
2696 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2697
2698 /* Set Hardware */
2699 rtl8192_hwconfig(dev);
2700
2701 /* turn on Tx/Rx */
2702 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2703
2704 /* set IDR0 here */
2705 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2706 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2707
2708 /* set RCR */
2709 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2710
2711 /* Initialize Number of Reserved Pages in Firmware Queue */
2712 write_nic_dword(dev, RQPN1,
2713 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2714 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2715 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2716 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2717 write_nic_dword(dev, RQPN2,
2718 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2719 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2720 write_nic_dword(dev, RQPN3,
2721 APPLIED_RESERVED_QUEUE_IN_FW |
2722 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2723 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2724
2725 /* Set AckTimeout */
2726 /* TODO: (it value is only for FPGA version). need to be changed!! */
2727 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2728
2729 if (priv->ResetProgress == RESET_TYPE_NORESET)
2730 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2731 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2732 CamResetAllEntry(dev);
2733 SECR_value |= SCR_TxEncEnable;
2734 SECR_value |= SCR_RxDecEnable;
2735 SECR_value |= SCR_NoSKMC;
2736 write_nic_byte(dev, SECR, SECR_value);
2737 }
2738
2739 /* Beacon related */
2740 write_nic_word(dev, ATIMWND, 2);
2741 write_nic_word(dev, BCN_INTERVAL, 100);
2742
2743 #define DEFAULT_EDCA 0x005e4332
2744 {
2745 int i;
2746
2747 for (i = 0; i < QOS_QUEUE_NUM; i++)
2748 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2749 }
2750
2751 rtl8192_phy_configmac(dev);
2752
2753 if (priv->card_8192_version == VERSION_819XU_A) {
2754 rtl8192_phy_getTxPower(dev);
2755 rtl8192_phy_setTxPower(dev, priv->chan);
2756 }
2757
2758 /* Firmware download */
2759 init_status = init_firmware(dev);
2760 if (!init_status) {
2761 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2762 __func__);
2763 return init_status;
2764 }
2765 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2766
2767 /* config RF. */
2768 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2769 rtl8192_phy_RFConfig(dev);
2770 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2771 }
2772
2773 if (priv->ieee80211->FwRWRF)
2774 /* We can force firmware to do RF-R/W */
2775 priv->Rf_Mode = RF_OP_By_FW;
2776 else
2777 priv->Rf_Mode = RF_OP_By_SW_3wire;
2778
2779 rtl8192_phy_updateInitGain(dev);
2780 /*--set CCK and OFDM Block "ON"--*/
2781 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2782 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2783
2784 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2785 /* if D or C cut */
2786 u8 tmpvalue;
2787
2788 read_nic_byte(dev, 0x301, &tmpvalue);
2789 if (tmpvalue == 0x03) {
2790 priv->bDcut = true;
2791 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2792 } else {
2793 priv->bDcut = false;
2794 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2795 }
2796 dm_initialize_txpower_tracking(dev);
2797
2798 if (priv->bDcut) {
2799 u32 i, TempCCk;
2800 u32 tmpRegA = rtl8192_QueryBBReg(dev,
2801 rOFDM0_XATxIQImbalance,
2802 bMaskDWord);
2803
2804 for (i = 0; i < TxBBGainTableLength; i++) {
2805 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2806 priv->rfa_txpowertrackingindex = (u8)i;
2807 priv->rfa_txpowertrackingindex_real =
2808 (u8)i;
2809 priv->rfa_txpowertracking_default =
2810 priv->rfa_txpowertrackingindex;
2811 break;
2812 }
2813 }
2814
2815 TempCCk = rtl8192_QueryBBReg(dev,
2816 rCCK0_TxFilter1,
2817 bMaskByte2);
2818
2819 for (i = 0; i < CCKTxBBGainTableLength; i++) {
2820 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2821 priv->cck_present_attenuation_20Mdefault = (u8)i;
2822 break;
2823 }
2824 }
2825 priv->cck_present_attenuation_40Mdefault = 0;
2826 priv->cck_present_attenuation_difference = 0;
2827 priv->cck_present_attenuation =
2828 priv->cck_present_attenuation_20Mdefault;
2829 }
2830 }
2831 write_nic_byte(dev, 0x87, 0x0);
2832
2833 return init_status;
2834 }
2835
2836 /* this configures registers for beacon tx and enables it via
2837 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2838 * be used to stop beacon transmission
2839 */
2840 /***************************************************************************
2841 * -------------------------------NET STUFF---------------------------
2842 ***************************************************************************/
2843
rtl8192_stats(struct net_device * dev)2844 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
2845 {
2846 struct r8192_priv *priv = ieee80211_priv(dev);
2847
2848 return &priv->ieee80211->stats;
2849 }
2850
HalTxCheckStuck819xUsb(struct net_device * dev)2851 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
2852 {
2853 struct r8192_priv *priv = ieee80211_priv(dev);
2854 u16 RegTxCounter;
2855 bool bStuck = false;
2856
2857 read_nic_word(dev, 0x128, &RegTxCounter);
2858 RT_TRACE(COMP_RESET,
2859 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
2860 RegTxCounter, priv->TxCounter);
2861 if (priv->TxCounter == RegTxCounter)
2862 bStuck = true;
2863
2864 priv->TxCounter = RegTxCounter;
2865
2866 return bStuck;
2867 }
2868
2869 /*
2870 * <Assumption: RT_TX_SPINLOCK is acquired.>
2871 * First added: 2006.11.19 by emily
2872 */
TxCheckStuck(struct net_device * dev)2873 static RESET_TYPE TxCheckStuck(struct net_device *dev)
2874 {
2875 struct r8192_priv *priv = ieee80211_priv(dev);
2876 u8 QueueID;
2877 bool bCheckFwTxCnt = false;
2878
2879 /* Decide such threshold according to current power save mode */
2880
2881 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
2882 if (QueueID == TXCMD_QUEUE)
2883 continue;
2884 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
2885 continue;
2886
2887 bCheckFwTxCnt = true;
2888 }
2889 if (bCheckFwTxCnt) {
2890 if (HalTxCheckStuck819xUsb(dev)) {
2891 RT_TRACE(COMP_RESET,
2892 "%s: Fw indicates no Tx condition!\n",
2893 __func__);
2894 return RESET_TYPE_SILENT;
2895 }
2896 }
2897 return RESET_TYPE_NORESET;
2898 }
2899
HalRxCheckStuck819xUsb(struct net_device * dev)2900 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
2901 {
2902 u16 RegRxCounter;
2903 struct r8192_priv *priv = ieee80211_priv(dev);
2904 bool bStuck = false;
2905 static u8 rx_chk_cnt;
2906
2907 read_nic_word(dev, 0x130, &RegRxCounter);
2908 RT_TRACE(COMP_RESET,
2909 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
2910 RegRxCounter, priv->RxCounter);
2911 /* If rssi is small, we should check rx for long time because of bad rx.
2912 * or maybe it will continuous silent reset every 2 seconds.
2913 */
2914 rx_chk_cnt++;
2915 if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) {
2916 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
2917 } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) &&
2918 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) ||
2919 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) {
2920 if (rx_chk_cnt < 2)
2921 return bStuck;
2922
2923 rx_chk_cnt = 0;
2924 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) ||
2925 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) &&
2926 priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) {
2927 if (rx_chk_cnt < 4)
2928 return bStuck;
2929
2930 rx_chk_cnt = 0;
2931 } else {
2932 if (rx_chk_cnt < 8)
2933 return bStuck;
2934
2935 rx_chk_cnt = 0;
2936 }
2937
2938 if (priv->RxCounter == RegRxCounter)
2939 bStuck = true;
2940
2941 priv->RxCounter = RegRxCounter;
2942
2943 return bStuck;
2944 }
2945
RxCheckStuck(struct net_device * dev)2946 static RESET_TYPE RxCheckStuck(struct net_device *dev)
2947 {
2948 struct r8192_priv *priv = ieee80211_priv(dev);
2949 bool bRxCheck = false;
2950
2951 if (priv->IrpPendingCount > 1)
2952 bRxCheck = true;
2953
2954 if (bRxCheck) {
2955 if (HalRxCheckStuck819xUsb(dev)) {
2956 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
2957 return RESET_TYPE_SILENT;
2958 }
2959 }
2960 return RESET_TYPE_NORESET;
2961 }
2962
2963 /*
2964 * This function is called by Checkforhang to check whether we should
2965 * ask OS to reset driver
2966 *
2967 * Note:NIC with USB interface sholud not call this function because we
2968 * cannot scan descriptor to judge whether there is tx stuck.
2969 * Note: This function may be required to be rewrite for Vista OS.
2970 * <<<Assumption: Tx spinlock has been acquired >>>
2971 *
2972 * 8185 and 8185b does not implement this function.
2973 */
rtl819x_ifcheck_resetornot(struct net_device * dev)2974 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
2975 {
2976 struct r8192_priv *priv = ieee80211_priv(dev);
2977 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
2978 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
2979 RT_RF_POWER_STATE rfState;
2980
2981 rfState = priv->ieee80211->eRFPowerState;
2982
2983 TxResetType = TxCheckStuck(dev);
2984 if (rfState != eRfOff ||
2985 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
2986 /* If driver is in the status of firmware download failure,
2987 * driver skips RF initialization and RF is in turned off
2988 * state. Driver should check whether Rx stuck and do silent
2989 * reset. And if driver is in firmware download failure status,
2990 * driver should initialize RF in the following silent reset
2991 * procedure
2992 *
2993 * Driver should not check RX stuck in IBSS mode because it is
2994 * required to set Check BSSID in order to send beacon,
2995 * however, if check BSSID is set, STA cannot hear any packet
2996 * at all.
2997 */
2998 RxResetType = RxCheckStuck(dev);
2999 }
3000 if (TxResetType == RESET_TYPE_NORMAL ||
3001 RxResetType == RESET_TYPE_NORMAL) {
3002 return RESET_TYPE_NORMAL;
3003 } else if (TxResetType == RESET_TYPE_SILENT ||
3004 RxResetType == RESET_TYPE_SILENT) {
3005 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3006 return RESET_TYPE_SILENT;
3007 } else {
3008 return RESET_TYPE_NORESET;
3009 }
3010 }
3011
3012 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3013 static int _rtl8192_up(struct net_device *dev);
3014 static int rtl8192_close(struct net_device *dev);
3015
CamRestoreAllEntry(struct net_device * dev)3016 static void CamRestoreAllEntry(struct net_device *dev)
3017 {
3018 u8 EntryId = 0;
3019 struct r8192_priv *priv = ieee80211_priv(dev);
3020 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3021
3022 static u8 CAM_CONST_ADDR[4][6] = {
3023 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3024 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3025 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3026 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3027 static u8 CAM_CONST_BROAD[] = {
3028 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3029
3030 RT_TRACE(COMP_SEC, "%s:\n", __func__);
3031
3032 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3033 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3034 for (EntryId = 0; EntryId < 4; EntryId++) {
3035 MacAddr = CAM_CONST_ADDR[EntryId];
3036 setKey(dev, EntryId, EntryId,
3037 priv->ieee80211->pairwise_key_type,
3038 MacAddr, 0, NULL);
3039 }
3040
3041 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3042 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3043 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3044 (const u8 *)dev->dev_addr, 0, NULL);
3045 else
3046 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3047 MacAddr, 0, NULL);
3048 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3049 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3050 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3051 (const u8 *)dev->dev_addr, 0, NULL);
3052 else
3053 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3054 MacAddr, 0, NULL);
3055 }
3056
3057 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3058 MacAddr = CAM_CONST_BROAD;
3059 for (EntryId = 1; EntryId < 4; EntryId++) {
3060 setKey(dev, EntryId, EntryId,
3061 priv->ieee80211->group_key_type,
3062 MacAddr, 0, NULL);
3063 }
3064 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3065 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3066 CAM_CONST_ADDR[0], 0, NULL);
3067 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3068 MacAddr = CAM_CONST_BROAD;
3069 for (EntryId = 1; EntryId < 4; EntryId++) {
3070 setKey(dev, EntryId, EntryId,
3071 priv->ieee80211->group_key_type,
3072 MacAddr, 0, NULL);
3073 }
3074
3075 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3076 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3077 CAM_CONST_ADDR[0], 0, NULL);
3078 }
3079 }
3080
3081 /* This function is used to fix Tx/Rx stop bug temporarily.
3082 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3083 * The method checking Tx/Rx stuck of this function is supported by FW,
3084 * which reports Tx and Rx counter to register 0x128 and 0x130.
3085 */
rtl819x_ifsilentreset(struct net_device * dev)3086 static void rtl819x_ifsilentreset(struct net_device *dev)
3087 {
3088 struct r8192_priv *priv = ieee80211_priv(dev);
3089 u8 reset_times = 0;
3090 int reset_status = 0;
3091 struct ieee80211_device *ieee = priv->ieee80211;
3092
3093 /* If we need to check CCK stop, please uncomment this line. */
3094 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3095
3096 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3097 RESET_START:
3098
3099 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3100
3101 /* Set the variable for reset. */
3102 priv->ResetProgress = RESET_TYPE_SILENT;
3103 mutex_lock(&priv->wx_mutex);
3104 if (priv->up == 0) {
3105 RT_TRACE(COMP_ERR,
3106 "%s():the driver is not up! return\n",
3107 __func__);
3108 mutex_unlock(&priv->wx_mutex);
3109 return;
3110 }
3111 priv->up = 0;
3112 RT_TRACE(COMP_RESET,
3113 "%s():======>start to down the driver\n",
3114 __func__);
3115
3116 rtl8192_rtx_disable(dev);
3117 rtl8192_cancel_deferred_work(priv);
3118 deinit_hal_dm(dev);
3119 del_timer_sync(&priv->watch_dog_timer);
3120
3121 ieee->sync_scan_hurryup = 1;
3122 if (ieee->state == IEEE80211_LINKED) {
3123 mutex_lock(&ieee->wx_mutex);
3124 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3125 ieee80211_stop_send_beacons(priv->ieee80211);
3126 del_timer_sync(&ieee->associate_timer);
3127 cancel_delayed_work(&ieee->associate_retry_wq);
3128 ieee80211_stop_scan(ieee);
3129 netif_carrier_off(dev);
3130 mutex_unlock(&ieee->wx_mutex);
3131 } else {
3132 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3133 ieee80211_softmac_stop_protocol(priv->ieee80211);
3134 }
3135 mutex_unlock(&priv->wx_mutex);
3136 RT_TRACE(COMP_RESET,
3137 "%s():<==========down process is finished\n",
3138 __func__);
3139 RT_TRACE(COMP_RESET,
3140 "%s():===========>start up the driver\n",
3141 __func__);
3142 reset_status = _rtl8192_up(dev);
3143
3144 RT_TRACE(COMP_RESET,
3145 "%s():<===========up process is finished\n",
3146 __func__);
3147 if (reset_status == -EAGAIN) {
3148 if (reset_times < 3) {
3149 reset_times++;
3150 goto RESET_START;
3151 } else {
3152 RT_TRACE(COMP_ERR,
3153 " ERR!!! %s(): Reset Failed!!\n",
3154 __func__);
3155 }
3156 }
3157 ieee->is_silent_reset = 1;
3158 EnableHWSecurityConfig8192(dev);
3159 if (ieee->state == IEEE80211_LINKED &&
3160 ieee->iw_mode == IW_MODE_INFRA) {
3161 ieee->set_chan(ieee->dev,
3162 ieee->current_network.channel);
3163
3164 queue_work(ieee->wq, &ieee->associate_complete_wq);
3165
3166 } else if (ieee->state == IEEE80211_LINKED &&
3167 ieee->iw_mode == IW_MODE_ADHOC) {
3168 ieee->set_chan(ieee->dev,
3169 ieee->current_network.channel);
3170 ieee->link_change(ieee->dev);
3171
3172 ieee80211_start_send_beacons(ieee);
3173
3174 if (ieee->data_hard_resume)
3175 ieee->data_hard_resume(ieee->dev);
3176 netif_carrier_on(ieee->dev);
3177 }
3178
3179 CamRestoreAllEntry(dev);
3180
3181 priv->ResetProgress = RESET_TYPE_NORESET;
3182 priv->reset_count++;
3183
3184 priv->bForcedSilentReset = false;
3185 priv->bResetInProgress = false;
3186
3187 /* For test --> force write UFWP. */
3188 write_nic_byte(dev, UFWP, 1);
3189 RT_TRACE(COMP_RESET,
3190 "Reset finished!! ====>[%d]\n",
3191 priv->reset_count);
3192 }
3193 }
3194
rtl819x_update_rxcounts(struct r8192_priv * priv,u32 * TotalRxBcnNum,u32 * TotalRxDataNum)3195 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3196 u32 *TotalRxDataNum)
3197 {
3198 u16 SlotIndex;
3199 u16 i;
3200
3201 *TotalRxBcnNum = 0;
3202 *TotalRxDataNum = 0;
3203
3204 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3205 (priv->ieee80211->LinkDetectInfo.SlotNum);
3206 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3207 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3208 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3209 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3210 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3211 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3212 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3213 }
3214 }
3215
rtl819x_watchdog_wqcallback(struct work_struct * work)3216 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3217 {
3218 struct delayed_work *dwork = to_delayed_work(work);
3219 struct r8192_priv *priv = container_of(dwork,
3220 struct r8192_priv, watch_dog_wq);
3221 struct net_device *dev = priv->ieee80211->dev;
3222 struct ieee80211_device *ieee = priv->ieee80211;
3223 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3224 static u8 check_reset_cnt;
3225 bool bBusyTraffic = false;
3226 u32 TotalRxBcnNum = 0;
3227 u32 TotalRxDataNum = 0;
3228
3229 if (!priv->up)
3230 return;
3231 hal_dm_watchdog(dev);
3232
3233 /* to get busy traffic condition */
3234 if (ieee->state == IEEE80211_LINKED) {
3235 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3236 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3237 bBusyTraffic = true;
3238 }
3239 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3240 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3241 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3242 }
3243 /* for AP roaming */
3244 if (priv->ieee80211->state == IEEE80211_LINKED &&
3245 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3246 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3247 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3248 #ifdef TODO
3249 if (rfState == eRfOff)
3250 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3251 #endif
3252 netdev_dbg(dev,
3253 "===>%s(): AP is power off, connect another one\n",
3254 __func__);
3255 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3256 notify_wx_assoc_event(priv->ieee80211);
3257 RemovePeerTS(priv->ieee80211,
3258 priv->ieee80211->current_network.bssid);
3259 priv->ieee80211->link_change(dev);
3260 queue_work(priv->ieee80211->wq,
3261 &priv->ieee80211->associate_procedure_wq);
3262 }
3263 }
3264 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3265 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3266 /* check if reset the driver */
3267 if (check_reset_cnt++ >= 3) {
3268 ResetType = rtl819x_ifcheck_resetornot(dev);
3269 check_reset_cnt = 3;
3270 }
3271 /* This is control by OID set in Pomelo */
3272 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3273 (priv->bForcedSilentReset ||
3274 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3275 RT_TRACE(COMP_RESET,
3276 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3277 __func__, priv->force_reset, priv->ResetProgress,
3278 priv->bForcedSilentReset,
3279 priv->bDisableNormalResetCheck, ResetType);
3280 rtl819x_ifsilentreset(dev);
3281 }
3282 priv->force_reset = false;
3283 priv->bForcedSilentReset = false;
3284 priv->bResetInProgress = false;
3285 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3286 }
3287
watch_dog_timer_callback(struct timer_list * t)3288 static void watch_dog_timer_callback(struct timer_list *t)
3289 {
3290 struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
3291
3292 schedule_delayed_work(&priv->watch_dog_wq, 0);
3293 mod_timer(&priv->watch_dog_timer,
3294 jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME));
3295 }
3296
_rtl8192_up(struct net_device * dev)3297 static int _rtl8192_up(struct net_device *dev)
3298 {
3299 struct r8192_priv *priv = ieee80211_priv(dev);
3300 int init_status = 0;
3301
3302 priv->up = 1;
3303 priv->ieee80211->ieee_up = 1;
3304 RT_TRACE(COMP_INIT, "Bringing up iface");
3305 init_status = rtl8192_adapter_start(dev);
3306 if (!init_status) {
3307 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3308 __func__);
3309 priv->up = priv->ieee80211->ieee_up = 0;
3310 return -EAGAIN;
3311 }
3312 RT_TRACE(COMP_INIT, "start adapter finished\n");
3313 rtl8192_rx_enable(dev);
3314 if (priv->ieee80211->state != IEEE80211_LINKED)
3315 ieee80211_softmac_start_protocol(priv->ieee80211);
3316 ieee80211_reset_queue(priv->ieee80211);
3317 watch_dog_timer_callback(&priv->watch_dog_timer);
3318 if (!netif_queue_stopped(dev))
3319 netif_start_queue(dev);
3320 else
3321 netif_wake_queue(dev);
3322
3323 return 0;
3324 }
3325
rtl8192_open(struct net_device * dev)3326 static int rtl8192_open(struct net_device *dev)
3327 {
3328 struct r8192_priv *priv = ieee80211_priv(dev);
3329 int ret;
3330
3331 mutex_lock(&priv->wx_mutex);
3332 ret = rtl8192_up(dev);
3333 mutex_unlock(&priv->wx_mutex);
3334 return ret;
3335 }
3336
rtl8192_up(struct net_device * dev)3337 int rtl8192_up(struct net_device *dev)
3338 {
3339 struct r8192_priv *priv = ieee80211_priv(dev);
3340
3341 if (priv->up == 1)
3342 return -1;
3343
3344 return _rtl8192_up(dev);
3345 }
3346
rtl8192_close(struct net_device * dev)3347 static int rtl8192_close(struct net_device *dev)
3348 {
3349 struct r8192_priv *priv = ieee80211_priv(dev);
3350 int ret;
3351
3352 mutex_lock(&priv->wx_mutex);
3353
3354 ret = rtl8192_down(dev);
3355
3356 mutex_unlock(&priv->wx_mutex);
3357
3358 return ret;
3359 }
3360
rtl8192_down(struct net_device * dev)3361 int rtl8192_down(struct net_device *dev)
3362 {
3363 struct r8192_priv *priv = ieee80211_priv(dev);
3364 int i;
3365
3366 if (priv->up == 0)
3367 return -1;
3368
3369 priv->up = 0;
3370 priv->ieee80211->ieee_up = 0;
3371 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3372 /* FIXME */
3373 if (!netif_queue_stopped(dev))
3374 netif_stop_queue(dev);
3375
3376 rtl8192_rtx_disable(dev);
3377
3378 /* Tx related queue release */
3379 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3380 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3381 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3382 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3383
3384 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3385 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3386
3387 /* as cancel_delayed_work will del work->timer, so if work is not
3388 * defined as struct delayed_work, it will corrupt
3389 */
3390 rtl8192_cancel_deferred_work(priv);
3391 deinit_hal_dm(dev);
3392 del_timer_sync(&priv->watch_dog_timer);
3393
3394 ieee80211_softmac_stop_protocol(priv->ieee80211);
3395 memset(&priv->ieee80211->current_network, 0,
3396 offsetof(struct ieee80211_network, list));
3397 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3398
3399 return 0;
3400 }
3401
rtl8192_commit(struct net_device * dev)3402 void rtl8192_commit(struct net_device *dev)
3403 {
3404 struct r8192_priv *priv = ieee80211_priv(dev);
3405
3406 if (priv->up == 0)
3407 return;
3408 priv->up = 0;
3409
3410 rtl8192_cancel_deferred_work(priv);
3411 del_timer_sync(&priv->watch_dog_timer);
3412
3413 ieee80211_softmac_stop_protocol(priv->ieee80211);
3414
3415 rtl8192_rtx_disable(dev);
3416 _rtl8192_up(dev);
3417 }
3418
rtl8192_restart(struct work_struct * work)3419 static void rtl8192_restart(struct work_struct *work)
3420 {
3421 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3422 reset_wq);
3423 struct net_device *dev = priv->ieee80211->dev;
3424
3425 mutex_lock(&priv->wx_mutex);
3426
3427 rtl8192_commit(dev);
3428
3429 mutex_unlock(&priv->wx_mutex);
3430 }
3431
r8192_set_multicast(struct net_device * dev)3432 static void r8192_set_multicast(struct net_device *dev)
3433 {
3434 struct r8192_priv *priv = ieee80211_priv(dev);
3435 short promisc;
3436
3437 /* FIXME FIXME */
3438
3439 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3440
3441 if (promisc != priv->promisc)
3442
3443 priv->promisc = promisc;
3444 }
3445
r8192_set_mac_adr(struct net_device * dev,void * mac)3446 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3447 {
3448 struct r8192_priv *priv = ieee80211_priv(dev);
3449 struct sockaddr *addr = mac;
3450
3451 mutex_lock(&priv->wx_mutex);
3452
3453 eth_hw_addr_set(dev, addr->sa_data);
3454
3455 schedule_work(&priv->reset_wq);
3456 mutex_unlock(&priv->wx_mutex);
3457
3458 return 0;
3459 }
3460
3461 /* based on ipw2200 driver */
rtl8192_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)3462 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3463 {
3464 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3465 struct iwreq *wrq = (struct iwreq *)rq;
3466 int ret = -1;
3467 struct ieee80211_device *ieee = priv->ieee80211;
3468 u32 key[4];
3469 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3470 struct iw_point *p = &wrq->u.data;
3471 struct ieee_param *ipw = NULL;
3472
3473 mutex_lock(&priv->wx_mutex);
3474
3475 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3476 ret = -EINVAL;
3477 goto out;
3478 }
3479
3480 ipw = memdup_user(p->pointer, p->length);
3481 if (IS_ERR(ipw)) {
3482 ret = PTR_ERR(ipw);
3483 goto out;
3484 }
3485
3486 switch (cmd) {
3487 case RTL_IOCTL_WPA_SUPPLICANT:
3488 /* parse here for HW security */
3489 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3490 if (ipw->u.crypt.set_tx) {
3491 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3492 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3493 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3494 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3495 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3496 if (ipw->u.crypt.key_len == 13)
3497 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3498 else if (ipw->u.crypt.key_len == 5)
3499 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3500 } else {
3501 ieee->pairwise_key_type = KEY_TYPE_NA;
3502 }
3503
3504 if (ieee->pairwise_key_type) {
3505 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3506 EnableHWSecurityConfig8192(dev);
3507 /* We fill both index entry and 4th
3508 * entry for pairwise key as in IPW
3509 * interface, adhoc will only get here,
3510 * so we need index entry for its
3511 * default key serching!
3512 */
3513 setKey(dev, 4, ipw->u.crypt.idx,
3514 ieee->pairwise_key_type,
3515 (u8 *)ieee->ap_mac_addr,
3516 0, key);
3517 if (ieee->auth_mode != 2)
3518 setKey(dev, ipw->u.crypt.idx,
3519 ipw->u.crypt.idx,
3520 ieee->pairwise_key_type,
3521 (u8 *)ieee->ap_mac_addr,
3522 0, key);
3523 }
3524 } else {
3525 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3526 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3527 ieee->group_key_type = KEY_TYPE_CCMP;
3528 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3529 ieee->group_key_type = KEY_TYPE_TKIP;
3530 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3531 if (ipw->u.crypt.key_len == 13)
3532 ieee->group_key_type = KEY_TYPE_WEP104;
3533 else if (ipw->u.crypt.key_len == 5)
3534 ieee->group_key_type = KEY_TYPE_WEP40;
3535 } else {
3536 ieee->group_key_type = KEY_TYPE_NA;
3537 }
3538
3539 if (ieee->group_key_type) {
3540 setKey(dev, ipw->u.crypt.idx,
3541 /* KeyIndex */
3542 ipw->u.crypt.idx,
3543 /* KeyType */
3544 ieee->group_key_type,
3545 /* MacAddr */
3546 broadcast_addr,
3547 /* DefaultKey */
3548 0,
3549 /* KeyContent */
3550 key);
3551 }
3552 }
3553 }
3554 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3555 &wrq->u.data);
3556 break;
3557
3558 default:
3559 ret = -EOPNOTSUPP;
3560 break;
3561 }
3562 kfree(ipw);
3563 ipw = NULL;
3564 out:
3565 mutex_unlock(&priv->wx_mutex);
3566 return ret;
3567 }
3568
HwRateToMRate90(bool bIsHT,u8 rate)3569 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3570 {
3571 u8 ret_rate = 0xff;
3572
3573 if (!bIsHT) {
3574 switch (rate) {
3575 case DESC90_RATE1M:
3576 ret_rate = MGN_1M;
3577 break;
3578 case DESC90_RATE2M:
3579 ret_rate = MGN_2M;
3580 break;
3581 case DESC90_RATE5_5M:
3582 ret_rate = MGN_5_5M;
3583 break;
3584 case DESC90_RATE11M:
3585 ret_rate = MGN_11M;
3586 break;
3587 case DESC90_RATE6M:
3588 ret_rate = MGN_6M;
3589 break;
3590 case DESC90_RATE9M:
3591 ret_rate = MGN_9M;
3592 break;
3593 case DESC90_RATE12M:
3594 ret_rate = MGN_12M;
3595 break;
3596 case DESC90_RATE18M:
3597 ret_rate = MGN_18M;
3598 break;
3599 case DESC90_RATE24M:
3600 ret_rate = MGN_24M;
3601 break;
3602 case DESC90_RATE36M:
3603 ret_rate = MGN_36M;
3604 break;
3605 case DESC90_RATE48M:
3606 ret_rate = MGN_48M;
3607 break;
3608 case DESC90_RATE54M:
3609 ret_rate = MGN_54M;
3610 break;
3611
3612 default:
3613 ret_rate = 0xff;
3614 RT_TRACE(COMP_RECV,
3615 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3616 __func__, rate, bIsHT);
3617 break;
3618 }
3619
3620 } else {
3621 switch (rate) {
3622 case DESC90_RATEMCS0:
3623 ret_rate = MGN_MCS0;
3624 break;
3625 case DESC90_RATEMCS1:
3626 ret_rate = MGN_MCS1;
3627 break;
3628 case DESC90_RATEMCS2:
3629 ret_rate = MGN_MCS2;
3630 break;
3631 case DESC90_RATEMCS3:
3632 ret_rate = MGN_MCS3;
3633 break;
3634 case DESC90_RATEMCS4:
3635 ret_rate = MGN_MCS4;
3636 break;
3637 case DESC90_RATEMCS5:
3638 ret_rate = MGN_MCS5;
3639 break;
3640 case DESC90_RATEMCS6:
3641 ret_rate = MGN_MCS6;
3642 break;
3643 case DESC90_RATEMCS7:
3644 ret_rate = MGN_MCS7;
3645 break;
3646 case DESC90_RATEMCS8:
3647 ret_rate = MGN_MCS8;
3648 break;
3649 case DESC90_RATEMCS9:
3650 ret_rate = MGN_MCS9;
3651 break;
3652 case DESC90_RATEMCS10:
3653 ret_rate = MGN_MCS10;
3654 break;
3655 case DESC90_RATEMCS11:
3656 ret_rate = MGN_MCS11;
3657 break;
3658 case DESC90_RATEMCS12:
3659 ret_rate = MGN_MCS12;
3660 break;
3661 case DESC90_RATEMCS13:
3662 ret_rate = MGN_MCS13;
3663 break;
3664 case DESC90_RATEMCS14:
3665 ret_rate = MGN_MCS14;
3666 break;
3667 case DESC90_RATEMCS15:
3668 ret_rate = MGN_MCS15;
3669 break;
3670 case DESC90_RATEMCS32:
3671 ret_rate = 0x80 | 0x20;
3672 break;
3673
3674 default:
3675 ret_rate = 0xff;
3676 RT_TRACE(COMP_RECV,
3677 "%s: Non supported Rate [%x], bIsHT = %d!!!\n",
3678 __func__, rate, bIsHT);
3679 break;
3680 }
3681 }
3682
3683 return ret_rate;
3684 }
3685
3686 /*
3687 * Function: UpdateRxPktTimeStamp
3688 * Overview: Record the TSF time stamp when receiving a packet
3689 *
3690 * Input:
3691 * PADAPTER Adapter
3692 * PRT_RFD pRfd,
3693 *
3694 * Output:
3695 * PRT_RFD pRfd
3696 * (pRfd->Status.TimeStampHigh is updated)
3697 * (pRfd->Status.TimeStampLow is updated)
3698 * Return:
3699 * None
3700 */
UpdateRxPktTimeStamp8190(struct net_device * dev,struct ieee80211_rx_stats * stats)3701 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3702 struct ieee80211_rx_stats *stats)
3703 {
3704 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3705
3706 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3707 stats->mac_time[0] = priv->LastRxDescTSFLow;
3708 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3709 } else {
3710 priv->LastRxDescTSFLow = stats->mac_time[0];
3711 priv->LastRxDescTSFHigh = stats->mac_time[1];
3712 }
3713 }
3714
3715 /* 0-100 index. */
rtl819x_translate_todbm(u8 signal_strength_index)3716 static long rtl819x_translate_todbm(u8 signal_strength_index)
3717 {
3718 long signal_power; /* in dBm. */
3719
3720 /* Translate to dBm (x=0.5y-95). */
3721 signal_power = (long)((signal_strength_index + 1) >> 1);
3722 signal_power -= 95;
3723
3724 return signal_power;
3725 }
3726
3727 /* We can not declare RSSI/EVM total value of sliding window to
3728 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3729 * value will be kept in memory or disk. Declare the value in the adaptor
3730 * and it will be reinitialized when returned from S3/S4.
3731 */
rtl8192_process_phyinfo(struct r8192_priv * priv,u8 * buffer,struct ieee80211_rx_stats * pprevious_stats,struct ieee80211_rx_stats * pcurrent_stats)3732 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3733 struct ieee80211_rx_stats *pprevious_stats,
3734 struct ieee80211_rx_stats *pcurrent_stats)
3735 {
3736 bool bcheck = false;
3737 u8 rfpath;
3738 u32 nspatial_stream, tmp_val;
3739 static u32 slide_rssi_index, slide_rssi_statistics;
3740 static u32 slide_evm_index, slide_evm_statistics;
3741 static u32 last_rssi, last_evm;
3742
3743 static u32 slide_beacon_adc_pwdb_index;
3744 static u32 slide_beacon_adc_pwdb_statistics;
3745 static u32 last_beacon_adc_pwdb;
3746
3747 struct rtl_80211_hdr_3addr *hdr;
3748 u16 sc;
3749 unsigned int seq;
3750
3751 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3752 sc = le16_to_cpu(hdr->seq_ctl);
3753 seq = WLAN_GET_SEQ_SEQ(sc);
3754 /* to record the sequence number */
3755 pcurrent_stats->Seq_Num = seq;
3756
3757 /* Check whether we should take the previous packet into accounting */
3758 if (!pprevious_stats->bIsAMPDU) {
3759 /* if previous packet is not aggregated packet */
3760 bcheck = true;
3761 }
3762
3763 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3764 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3765 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3766 priv->stats.slide_rssi_total -= last_rssi;
3767 }
3768 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3769
3770 priv->stats.slide_signal_strength[slide_rssi_index++] =
3771 pprevious_stats->SignalStrength;
3772 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3773 slide_rssi_index = 0;
3774
3775 /* <1> Showed on UI for user, in dbm */
3776 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3777 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3778 pcurrent_stats->rssi = priv->stats.signal_strength;
3779
3780 /* If the previous packet does not match the criteria, neglect it */
3781 if (!pprevious_stats->bPacketMatchBSSID) {
3782 if (!pprevious_stats->bToSelfBA)
3783 return;
3784 }
3785
3786 if (!bcheck)
3787 return;
3788
3789 /* only rtl8190 supported
3790 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3791 */
3792
3793 /* Check RSSI */
3794 priv->stats.num_process_phyinfo++;
3795
3796 /* record the general signal strength to the sliding window. */
3797
3798 /* <2> Showed on UI for engineering
3799 * hardware does not provide rssi information for each rf path in CCK
3800 */
3801 if (!pprevious_stats->bIsCCK &&
3802 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3803 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3804 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev,
3805 rfpath))
3806 continue;
3807 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3808 priv->stats.rx_rssi_percentage[rfpath] =
3809 pprevious_stats->RxMIMOSignalStrength[rfpath];
3810 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
3811 priv->stats.rx_rssi_percentage[rfpath] =
3812 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3813 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3814 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
3815 } else {
3816 priv->stats.rx_rssi_percentage[rfpath] =
3817 ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) +
3818 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR);
3819 }
3820 RT_TRACE(COMP_DBG,
3821 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
3822 priv->stats.rx_rssi_percentage[rfpath]);
3823 }
3824 }
3825
3826 /* Check PWDB. */
3827 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3828 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3829 pprevious_stats->RxPWDBAll);
3830
3831 if (pprevious_stats->bPacketBeacon) {
3832 /* record the beacon pwdb to the sliding window. */
3833 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
3834 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
3835 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
3836 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
3837 }
3838 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
3839 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
3840 slide_beacon_adc_pwdb_index++;
3841 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
3842 slide_beacon_adc_pwdb_index = 0;
3843 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
3844 if (pprevious_stats->RxPWDBAll >= 3)
3845 pprevious_stats->RxPWDBAll -= 3;
3846 }
3847
3848 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
3849 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
3850 pprevious_stats->RxPWDBAll);
3851
3852 if (pprevious_stats->bPacketToSelf ||
3853 pprevious_stats->bPacketBeacon ||
3854 pprevious_stats->bToSelfBA) {
3855 if (priv->undecorated_smoothed_pwdb < 0)
3856 /* initialize */
3857 priv->undecorated_smoothed_pwdb =
3858 pprevious_stats->RxPWDBAll;
3859 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
3860 priv->undecorated_smoothed_pwdb =
3861 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3862 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3863 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
3864 } else {
3865 priv->undecorated_smoothed_pwdb =
3866 (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) +
3867 (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR);
3868 }
3869 }
3870
3871 /* Check EVM */
3872 /* record the general EVM to the sliding window. */
3873 if (pprevious_stats->SignalQuality) {
3874 if (pprevious_stats->bPacketToSelf ||
3875 pprevious_stats->bPacketBeacon ||
3876 pprevious_stats->bToSelfBA) {
3877 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3878 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
3879 last_evm = priv->stats.slide_evm[slide_evm_index];
3880 priv->stats.slide_evm_total -= last_evm;
3881 }
3882
3883 priv->stats.slide_evm_total +=
3884 pprevious_stats->SignalQuality;
3885
3886 priv->stats.slide_evm[slide_evm_index++] =
3887 pprevious_stats->SignalQuality;
3888 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
3889 slide_evm_index = 0;
3890
3891 /* <1> Showed on UI for user, in percentage. */
3892 tmp_val = priv->stats.slide_evm_total /
3893 slide_evm_statistics;
3894 priv->stats.signal_quality = tmp_val;
3895 /* Showed on UI for user in Windows Vista,
3896 * for Link quality.
3897 */
3898 priv->stats.last_signal_strength_inpercent = tmp_val;
3899 }
3900
3901 /* <2> Showed on UI for engineering */
3902 if (pprevious_stats->bPacketToSelf ||
3903 pprevious_stats->bPacketBeacon ||
3904 pprevious_stats->bToSelfBA) {
3905 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
3906 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
3907 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
3908 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
3909 priv->stats.rx_evm_percentage[nspatial_stream] =
3910 ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) +
3911 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR);
3912 }
3913 }
3914 }
3915 }
3916 }
3917
3918 /*-----------------------------------------------------------------------------
3919 * Function: rtl819x_query_rxpwrpercentage()
3920 *
3921 * Overview:
3922 *
3923 * Input: char antpower
3924 *
3925 * Output: NONE
3926 *
3927 * Return: 0-100 percentage
3928 *---------------------------------------------------------------------------
3929 */
rtl819x_query_rxpwrpercentage(s8 antpower)3930 static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
3931 {
3932 if ((antpower <= -100) || (antpower >= 20))
3933 return 0;
3934 else if (antpower >= 0)
3935 return 100;
3936 else
3937 return 100 + antpower;
3938
3939 } /* QueryRxPwrPercentage */
3940
rtl819x_evm_dbtopercentage(s8 value)3941 static u8 rtl819x_evm_dbtopercentage(s8 value)
3942 {
3943 s8 ret_val = clamp(-value, 0, 33) * 3;
3944
3945 if (ret_val == 99)
3946 ret_val = 100;
3947
3948 return ret_val;
3949 }
3950
3951 /* We want good-looking for signal strength/quality */
rtl819x_signal_scale_mapping(long currsig)3952 static long rtl819x_signal_scale_mapping(long currsig)
3953 {
3954 long retsig;
3955
3956 /* Step 1. Scale mapping. */
3957 if (currsig >= 61 && currsig <= 100)
3958 retsig = 90 + ((currsig - 60) / 4);
3959 else if (currsig >= 41 && currsig <= 60)
3960 retsig = 78 + ((currsig - 40) / 2);
3961 else if (currsig >= 31 && currsig <= 40)
3962 retsig = 66 + (currsig - 30);
3963 else if (currsig >= 21 && currsig <= 30)
3964 retsig = 54 + (currsig - 20);
3965 else if (currsig >= 5 && currsig <= 20)
3966 retsig = 42 + (((currsig - 5) * 2) / 3);
3967 else if (currsig == 4)
3968 retsig = 36;
3969 else if (currsig == 3)
3970 retsig = 27;
3971 else if (currsig == 2)
3972 retsig = 18;
3973 else if (currsig == 1)
3974 retsig = 9;
3975 else
3976 retsig = currsig;
3977
3978 return retsig;
3979 }
3980
rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb * pdrvinfo)3981 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
3982 {
3983 if (pdrvinfo->RxHT)
3984 return false;
3985
3986 switch (pdrvinfo->RxRate) {
3987 case DESC90_RATE1M:
3988 case DESC90_RATE2M:
3989 case DESC90_RATE5_5M:
3990 case DESC90_RATE11M:
3991 return true;
3992 default:
3993 return false;
3994 }
3995 }
3996
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)3997 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
3998 struct ieee80211_rx_stats *pstats,
3999 struct rx_drvinfo_819x_usb *pdrvinfo,
4000 struct ieee80211_rx_stats *precord_stats,
4001 bool bpacket_match_bssid,
4002 bool bpacket_toself,
4003 bool bPacketBeacon,
4004 bool bToSelfBA)
4005 {
4006 phy_sts_ofdm_819xusb_t *pofdm_buf;
4007 phy_sts_cck_819xusb_t *pcck_buf;
4008 struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4009 u8 *prxpkt;
4010 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4011 s8 rx_pwr[4], rx_pwr_all = 0;
4012 s8 rx_snrX, rx_evmX;
4013 u8 evm, pwdb_all;
4014 u32 RSSI, total_rssi = 0;
4015 u8 is_cck_rate = 0;
4016 u8 rf_rx_num = 0;
4017 u8 sq;
4018
4019 priv->stats.numqry_phystatus++;
4020
4021 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4022
4023 /* Record it for next packet processing */
4024 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4025 pstats->bPacketMatchBSSID =
4026 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4027 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4028 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4029 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4030 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4031
4032 prxpkt = (u8 *)pdrvinfo;
4033
4034 /* Move pointer to the 16th bytes. Phy status start address. */
4035 prxpkt += sizeof(struct rx_drvinfo_819x_usb);
4036
4037 /* Initial the cck and ofdm buffer pointer */
4038 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4039 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4040
4041 pstats->RxMIMOSignalQuality[0] = -1;
4042 pstats->RxMIMOSignalQuality[1] = -1;
4043 precord_stats->RxMIMOSignalQuality[0] = -1;
4044 precord_stats->RxMIMOSignalQuality[1] = -1;
4045
4046 if (is_cck_rate) {
4047 /* (1)Hardware does not provide RSSI for CCK */
4048
4049 /* (2)PWDB, Average PWDB calculated by hardware
4050 * (for rate adaptive)
4051 */
4052 u8 report;
4053
4054 priv->stats.numqry_phystatusCCK++;
4055
4056 if (!priv->bCckHighPower) {
4057 report = pcck_buf->cck_agc_rpt & 0xc0;
4058 report >>= 6;
4059 switch (report) {
4060 case 0x3:
4061 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4062 break;
4063 case 0x2:
4064 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4065 break;
4066 case 0x1:
4067 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4068 break;
4069 case 0x0:
4070 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4071 break;
4072 }
4073 } else {
4074 report = pcck_buf->cck_agc_rpt & 0x60;
4075 report >>= 5;
4076 switch (report) {
4077 case 0x3:
4078 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4079 break;
4080 case 0x2:
4081 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4082 break;
4083 case 0x1:
4084 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4085 break;
4086 case 0x0:
4087 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4088 break;
4089 }
4090 }
4091
4092 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4093 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4094 pstats->RecvSignalPower = pwdb_all;
4095
4096 /* (3) Get Signal Quality (EVM) */
4097
4098 if (pstats->RxPWDBAll > 40) {
4099 sq = 100;
4100 } else {
4101 sq = pcck_buf->sq_rpt;
4102
4103 if (pcck_buf->sq_rpt > 64)
4104 sq = 0;
4105 else if (pcck_buf->sq_rpt < 20)
4106 sq = 100;
4107 else
4108 sq = ((64 - sq) * 100) / 44;
4109 }
4110 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4111 pstats->RxMIMOSignalQuality[0] =
4112 precord_stats->RxMIMOSignalQuality[0] = sq;
4113 pstats->RxMIMOSignalQuality[1] =
4114 precord_stats->RxMIMOSignalQuality[1] = -1;
4115
4116 } else {
4117 priv->stats.numqry_phystatusHT++;
4118
4119 /* (1)Get RSSI for HT rate */
4120 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4121 /* We will judge RF RX path now. */
4122 if (priv->brfpath_rxenable[i])
4123 rf_rx_num++;
4124 else
4125 continue;
4126
4127 if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i))
4128 continue;
4129
4130 rx_pwr[i] =
4131 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4132
4133 /* Get Rx snr value in DB */
4134 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4135 rx_snrX = (s8)(tmp_rxsnr);
4136 rx_snrX /= 2;
4137 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4138
4139 /* Translate DBM to percentage. */
4140 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4141 total_rssi += RSSI;
4142
4143 /* Record Signal Strength for next packet */
4144 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4145 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4146 }
4147
4148 /* (2)PWDB, Average PWDB calculated by hardware
4149 * (for rate adaptive)
4150 */
4151 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4152 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4153
4154 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4155 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4156
4157 /* (3)EVM of HT rate */
4158 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4159 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4160 /* both spatial stream make sense */
4161 max_spatial_stream = 2;
4162 else
4163 /* only spatial stream 1 makes sense */
4164 max_spatial_stream = 1;
4165
4166 for (i = 0; i < max_spatial_stream; i++) {
4167 tmp_rxevm = pofdm_buf->rxevm_X[i];
4168 rx_evmX = (s8)(tmp_rxevm);
4169
4170 /* Do not use shift operation like "rx_evmX >>= 1"
4171 * because the compiler of free build environment will
4172 * set the most significant bit to "zero" when doing
4173 * shifting operation which may change a negative value
4174 * to positive one, then the dbm value (which is
4175 * supposed to be negative) is not correct anymore.
4176 */
4177 rx_evmX /= 2; /* dbm */
4178
4179 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4180 if (i == 0)
4181 /* Fill value in RFD, Get the first spatial
4182 * stream only
4183 */
4184 pstats->SignalQuality =
4185 precord_stats->SignalQuality =
4186 evm & 0xff;
4187 pstats->RxMIMOSignalQuality[i] =
4188 precord_stats->RxMIMOSignalQuality[i] =
4189 evm & 0xff;
4190 }
4191
4192 /* record rx statistics for debug */
4193 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4194 prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4195 &rxsc_sgien_exflg;
4196 if (pdrvinfo->BW) /* 40M channel */
4197 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4198 else /* 20M channel */
4199 priv->stats.received_bwtype[0]++;
4200 }
4201
4202 /* UI BSS List signal strength(in percentage), make it good looking,
4203 * from 0~100. It is assigned to the BSS List in
4204 * GetValueFromBeaconOrProbeRsp().
4205 */
4206 if (is_cck_rate) {
4207 pstats->SignalStrength =
4208 precord_stats->SignalStrength =
4209 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4210 } else {
4211 /* We can judge RX path number now. */
4212 if (rf_rx_num != 0) {
4213 pstats->SignalStrength =
4214 precord_stats->SignalStrength =
4215 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4216 }
4217 }
4218 } /* QueryRxPhyStatus8190Pci */
4219
rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats * psrc_stats,struct ieee80211_rx_stats * ptarget_stats)4220 static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats,
4221 struct ieee80211_rx_stats *ptarget_stats)
4222 {
4223 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4224 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4225 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4226 }
4227
TranslateRxSignalStuff819xUsb(struct sk_buff * skb,struct ieee80211_rx_stats * pstats,struct rx_drvinfo_819x_usb * pdrvinfo)4228 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4229 struct ieee80211_rx_stats *pstats,
4230 struct rx_drvinfo_819x_usb *pdrvinfo)
4231 {
4232 /* TODO: We must only check packet for current MAC address.
4233 * Not finish
4234 */
4235 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4236 struct net_device *dev = info->dev;
4237 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4238 bool bpacket_match_bssid, bpacket_toself;
4239 bool bPacketBeacon = false, bToSelfBA = false;
4240 static struct ieee80211_rx_stats previous_stats;
4241 struct rtl_80211_hdr_3addr *hdr;
4242 u16 fc, type;
4243
4244 /* Get Signal Quality for only RX data queue (but not command queue) */
4245
4246 u8 *tmp_buf;
4247 u8 *praddr;
4248
4249 /* Get MAC frame start address. */
4250 tmp_buf = (u8 *)skb->data;
4251
4252 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4253 fc = le16_to_cpu(hdr->frame_ctl);
4254 type = WLAN_FC_GET_TYPE(fc);
4255 praddr = hdr->addr1;
4256
4257 /* Check if the received packet is acceptable. */
4258 bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
4259 (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4260 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4261 bpacket_toself = bpacket_match_bssid &&
4262 (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr));
4263
4264 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4265 bPacketBeacon = true;
4266 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4267 if ((ether_addr_equal(praddr, dev->dev_addr)))
4268 bToSelfBA = true;
4269 }
4270
4271 if (bpacket_match_bssid)
4272 priv->stats.numpacket_matchbssid++;
4273 if (bpacket_toself)
4274 priv->stats.numpacket_toself++;
4275 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4276 * Because phy information is contained in the last packet of AMPDU
4277 * only, so driver should process phy information of previous packet
4278 */
4279 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4280 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4281 bpacket_match_bssid, bpacket_toself,
4282 bPacketBeacon, bToSelfBA);
4283 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4284 }
4285
4286 /*
4287 * Function: UpdateReceivedRateHistogramStatistics
4288 * Overview: Record the received data rate
4289 *
4290 * Input:
4291 * struct net_device *dev
4292 * struct ieee80211_rx_stats *stats
4293 *
4294 * Output:
4295 *
4296 * (priv->stats.ReceivedRateHistogram[] is updated)
4297 * Return:
4298 * None
4299 */
4300 static void
UpdateReceivedRateHistogramStatistics8190(struct net_device * dev,struct ieee80211_rx_stats * stats)4301 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4302 struct ieee80211_rx_stats *stats)
4303 {
4304 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4305 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4306 u32 rcvType = 1;
4307 u32 rateIndex;
4308 /* 1: short preamble/GI, 0: long preamble/GI */
4309 u32 preamble_guardinterval;
4310
4311 if (stats->bCRC)
4312 rcvType = 2;
4313 else if (stats->bICV)
4314 rcvType = 3;
4315
4316 if (stats->bShortPreamble)
4317 preamble_guardinterval = 1; /* short */
4318 else
4319 preamble_guardinterval = 0; /* long */
4320
4321 switch (stats->rate) {
4322 /* CCK rate */
4323 case MGN_1M:
4324 rateIndex = 0;
4325 break;
4326 case MGN_2M:
4327 rateIndex = 1;
4328 break;
4329 case MGN_5_5M:
4330 rateIndex = 2;
4331 break;
4332 case MGN_11M:
4333 rateIndex = 3;
4334 break;
4335 /* Legacy OFDM rate */
4336 case MGN_6M:
4337 rateIndex = 4;
4338 break;
4339 case MGN_9M:
4340 rateIndex = 5;
4341 break;
4342 case MGN_12M:
4343 rateIndex = 6;
4344 break;
4345 case MGN_18M:
4346 rateIndex = 7;
4347 break;
4348 case MGN_24M:
4349 rateIndex = 8;
4350 break;
4351 case MGN_36M:
4352 rateIndex = 9;
4353 break;
4354 case MGN_48M:
4355 rateIndex = 10;
4356 break;
4357 case MGN_54M:
4358 rateIndex = 11;
4359 break;
4360 /* 11n High throughput rate */
4361 case MGN_MCS0:
4362 rateIndex = 12;
4363 break;
4364 case MGN_MCS1:
4365 rateIndex = 13;
4366 break;
4367 case MGN_MCS2:
4368 rateIndex = 14;
4369 break;
4370 case MGN_MCS3:
4371 rateIndex = 15;
4372 break;
4373 case MGN_MCS4:
4374 rateIndex = 16;
4375 break;
4376 case MGN_MCS5:
4377 rateIndex = 17;
4378 break;
4379 case MGN_MCS6:
4380 rateIndex = 18;
4381 break;
4382 case MGN_MCS7:
4383 rateIndex = 19;
4384 break;
4385 case MGN_MCS8:
4386 rateIndex = 20;
4387 break;
4388 case MGN_MCS9:
4389 rateIndex = 21;
4390 break;
4391 case MGN_MCS10:
4392 rateIndex = 22;
4393 break;
4394 case MGN_MCS11:
4395 rateIndex = 23;
4396 break;
4397 case MGN_MCS12:
4398 rateIndex = 24;
4399 break;
4400 case MGN_MCS13:
4401 rateIndex = 25;
4402 break;
4403 case MGN_MCS14:
4404 rateIndex = 26;
4405 break;
4406 case MGN_MCS15:
4407 rateIndex = 27;
4408 break;
4409 default:
4410 rateIndex = 28;
4411 break;
4412 }
4413 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4414 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4415 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4416 }
4417
query_rxdesc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats,bool bIsRxAggrSubframe)4418 static void query_rxdesc_status(struct sk_buff *skb,
4419 struct ieee80211_rx_stats *stats,
4420 bool bIsRxAggrSubframe)
4421 {
4422 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4423 struct net_device *dev = info->dev;
4424 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4425 struct rx_drvinfo_819x_usb *driver_info = NULL;
4426
4427 /* Get Rx Descriptor Information */
4428 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4429
4430 stats->Length = desc->Length;
4431 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4432 stats->RxBufShift = 0;
4433 stats->bICV = desc->ICV;
4434 stats->bCRC = desc->CRC32;
4435 stats->bHwError = stats->bCRC | stats->bICV;
4436 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4437 stats->Decrypted = !desc->SWDec;
4438
4439 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4440 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4441 stats->bHwError = false;
4442 else
4443 stats->bHwError = stats->bCRC | stats->bICV;
4444
4445 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4446 stats->bHwError |= 1;
4447 /* Get Driver Info */
4448 /* TODO: Need to verify it on FGPA platform
4449 * Driver info are written to the RxBuffer following rx desc
4450 */
4451 if (stats->RxDrvInfoSize != 0) {
4452 driver_info = (struct rx_drvinfo_819x_usb *)(skb->data
4453 + sizeof(struct rx_desc_819x_usb)
4454 + stats->RxBufShift
4455 );
4456 /* unit: 0.5M */
4457 /* TODO */
4458 if (!stats->bHwError) {
4459 u8 ret_rate;
4460
4461 ret_rate = HwRateToMRate90(driver_info->RxHT,
4462 driver_info->RxRate);
4463 if (ret_rate == 0xff) {
4464 /* Abnormal Case: Receive CRC OK packet with Rx
4465 * descriptor indicating non supported rate.
4466 * Special Error Handling here
4467 */
4468
4469 stats->bHwError = 1;
4470 /* Set 1M rate by default */
4471 stats->rate = MGN_1M;
4472 } else {
4473 stats->rate = ret_rate;
4474 }
4475 } else {
4476 stats->rate = 0x02;
4477 }
4478
4479 stats->bShortPreamble = driver_info->SPLCP;
4480
4481 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4482
4483 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4484 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4485 (driver_info->FirstAGGR == 1);
4486 stats->TimeStampLow = driver_info->TSFL;
4487
4488 UpdateRxPktTimeStamp8190(dev, stats);
4489
4490 /* Rx A-MPDU */
4491 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4492 RT_TRACE(COMP_RXDESC,
4493 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4494 driver_info->FirstAGGR, driver_info->PartAggr);
4495 }
4496
4497 skb_pull(skb, sizeof(struct rx_desc_819x_usb));
4498 /* Get Total offset of MPDU Frame Body */
4499 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4500 stats->bShift = 1;
4501 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4502 }
4503
4504 if (driver_info) {
4505 stats->RxIs40MHzPacket = driver_info->BW;
4506 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4507 }
4508 }
4509
rtl8192_rx_nomal(struct sk_buff * skb)4510 static void rtl8192_rx_nomal(struct sk_buff *skb)
4511 {
4512 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4513 struct net_device *dev = info->dev;
4514 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4515 struct ieee80211_rx_stats stats = {
4516 .signal = 0,
4517 .noise = 0x100 - 98,
4518 .rate = 0,
4519 .freq = IEEE80211_24GHZ_BAND,
4520 };
4521 u32 rx_pkt_len = 0;
4522 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4523 bool unicast_packet = false;
4524
4525 /* 20 is for ps-poll */
4526 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4527 /* first packet should not contain Rx aggregation header */
4528 query_rxdesc_status(skb, &stats, false);
4529 /* TODO */
4530 /* hardware related info */
4531 /* Process the MPDU received */
4532 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4533
4534 rx_pkt_len = skb->len;
4535 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4536 unicast_packet = false;
4537 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4538 /* TODO */
4539 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4540 /* TODO */
4541 } else {
4542 /* unicast packet */
4543 unicast_packet = true;
4544 }
4545
4546 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4547 dev_kfree_skb_any(skb);
4548 } else {
4549 priv->stats.rxoktotal++;
4550 if (unicast_packet)
4551 priv->stats.rxbytesunicast += rx_pkt_len;
4552 }
4553 } else {
4554 priv->stats.rxurberr++;
4555 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4556 dev_kfree_skb_any(skb);
4557 }
4558 }
4559
rtl819xusb_process_received_packet(struct net_device * dev,struct ieee80211_rx_stats * pstats)4560 static void rtl819xusb_process_received_packet(struct net_device *dev,
4561 struct ieee80211_rx_stats *pstats)
4562 {
4563 struct r8192_priv *priv = ieee80211_priv(dev);
4564
4565 /* Get shifted bytes of Starting address of 802.11 header. */
4566 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4567 #ifdef TODO /* about HCT */
4568 if (!Adapter->bInHctTest)
4569 CountRxErrStatistics(Adapter, pRfd);
4570 #endif
4571 #ifdef ENABLE_PS /* for adding ps function in future */
4572 RT_RF_POWER_STATE rtState;
4573 /* When RF is off, we should not count the packet for hw/sw synchronize
4574 * reason, ie. there may be a duration while sw switch is changed and
4575 * hw switch is being changed.
4576 */
4577 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4578 (u8 *)(&rtState));
4579 if (rtState == eRfOff)
4580 return;
4581 #endif
4582 priv->stats.rxframgment++;
4583
4584 #ifdef TODO
4585 RmMonitorSignalStrength(Adapter, pRfd);
4586 #endif
4587 /* We have to release RFD and return if rx pkt is cmd pkt. */
4588 if (rtl819xusb_rx_command_packet(dev, pstats))
4589 return;
4590
4591 #ifdef SW_CRC_CHECK
4592 SwCrcCheck();
4593 #endif
4594 }
4595
query_rx_cmdpkt_desc_status(struct sk_buff * skb,struct ieee80211_rx_stats * stats)4596 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4597 struct ieee80211_rx_stats *stats)
4598 {
4599 struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data;
4600
4601 /* Get Rx Descriptor Information */
4602 stats->virtual_address = (u8 *)skb->data;
4603 stats->Length = desc->Length;
4604 stats->RxDrvInfoSize = 0;
4605 stats->RxBufShift = 0;
4606 stats->packetlength = stats->Length - scrclng;
4607 stats->fraglength = stats->packetlength;
4608 stats->fragoffset = 0;
4609 stats->ntotalfrag = 1;
4610 }
4611
rtl8192_rx_cmd(struct sk_buff * skb)4612 static void rtl8192_rx_cmd(struct sk_buff *skb)
4613 {
4614 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4615 struct net_device *dev = info->dev;
4616 /* TODO */
4617 struct ieee80211_rx_stats stats = {
4618 .signal = 0,
4619 .noise = 0x100 - 98,
4620 .rate = 0,
4621 .freq = IEEE80211_24GHZ_BAND,
4622 };
4623
4624 if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4625 query_rx_cmdpkt_desc_status(skb, &stats);
4626 /* prfd->queue_id = 1; */
4627
4628 /* Process the command packet received. */
4629
4630 rtl819xusb_process_received_packet(dev, &stats);
4631
4632 dev_kfree_skb_any(skb);
4633 }
4634 }
4635
rtl8192_irq_rx_tasklet(struct tasklet_struct * t)4636 static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t)
4637 {
4638 struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet);
4639 struct sk_buff *skb;
4640 struct rtl8192_rx_info *info;
4641
4642 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4643 info = (struct rtl8192_rx_info *)skb->cb;
4644 switch (info->out_pipe) {
4645 /* Nomal packet pipe */
4646 case 3:
4647 priv->IrpPendingCount--;
4648 rtl8192_rx_nomal(skb);
4649 break;
4650
4651 /* Command packet pipe */
4652 case 9:
4653 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4654 info->out_pipe);
4655
4656 rtl8192_rx_cmd(skb);
4657 break;
4658
4659 default: /* should never get here! */
4660 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4661 info->out_pipe);
4662 dev_kfree_skb(skb);
4663 break;
4664 }
4665 }
4666 }
4667
4668 static const struct net_device_ops rtl8192_netdev_ops = {
4669 .ndo_open = rtl8192_open,
4670 .ndo_stop = rtl8192_close,
4671 .ndo_get_stats = rtl8192_stats,
4672 .ndo_tx_timeout = tx_timeout,
4673 .ndo_do_ioctl = rtl8192_ioctl,
4674 .ndo_set_rx_mode = r8192_set_multicast,
4675 .ndo_set_mac_address = r8192_set_mac_adr,
4676 .ndo_validate_addr = eth_validate_addr,
4677 .ndo_start_xmit = ieee80211_xmit,
4678 };
4679
4680 /****************************************************************************
4681 * ---------------------------- USB_STUFF---------------------------
4682 *****************************************************************************/
4683
rtl8192_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)4684 static int rtl8192_usb_probe(struct usb_interface *intf,
4685 const struct usb_device_id *id)
4686 {
4687 struct net_device *dev = NULL;
4688 struct r8192_priv *priv = NULL;
4689 struct usb_device *udev = interface_to_usbdev(intf);
4690 int ret;
4691
4692 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4693
4694 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4695 if (!dev)
4696 return -ENOMEM;
4697
4698 usb_set_intfdata(intf, dev);
4699 SET_NETDEV_DEV(dev, &intf->dev);
4700 priv = ieee80211_priv(dev);
4701 priv->ieee80211 = netdev_priv(dev);
4702 priv->udev = udev;
4703
4704 dev->netdev_ops = &rtl8192_netdev_ops;
4705
4706 dev->wireless_handlers = &r8192_wx_handlers_def;
4707
4708 dev->type = ARPHRD_ETHER;
4709
4710 dev->watchdog_timeo = HZ * 3;
4711
4712 if (dev_alloc_name(dev, ifname) < 0) {
4713 RT_TRACE(COMP_INIT,
4714 "Oops: devname already taken! Trying wlan%%d...\n");
4715 ifname = "wlan%d";
4716 dev_alloc_name(dev, ifname);
4717 }
4718
4719 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4720 if (rtl8192_init(dev) != 0) {
4721 RT_TRACE(COMP_ERR, "Initialization failed");
4722 ret = -ENODEV;
4723 goto fail;
4724 }
4725 netif_carrier_off(dev);
4726 netif_stop_queue(dev);
4727
4728 ret = register_netdev(dev);
4729 if (ret)
4730 goto fail2;
4731
4732 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4733 rtl8192_proc_init_one(dev);
4734
4735 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4736 return 0;
4737
4738 fail2:
4739 rtl8192_down(dev);
4740 fail:
4741 kfree(priv->pFirmware);
4742 priv->pFirmware = NULL;
4743 rtl8192_usb_deleteendpoints(dev);
4744 msleep(10);
4745 free_ieee80211(dev);
4746
4747 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
4748 return ret;
4749 }
4750
4751 /* detach all the work and timer structure declared or inititialize
4752 * in r8192U_init function.
4753 */
rtl8192_cancel_deferred_work(struct r8192_priv * priv)4754 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
4755 {
4756 cancel_work_sync(&priv->reset_wq);
4757 cancel_delayed_work(&priv->watch_dog_wq);
4758 cancel_delayed_work(&priv->update_beacon_wq);
4759 cancel_work_sync(&priv->qos_activate);
4760 }
4761
rtl8192_usb_disconnect(struct usb_interface * intf)4762 static void rtl8192_usb_disconnect(struct usb_interface *intf)
4763 {
4764 struct net_device *dev = usb_get_intfdata(intf);
4765 struct r8192_priv *priv = ieee80211_priv(dev);
4766
4767 unregister_netdev(dev);
4768
4769 RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n");
4770 rtl8192_proc_remove_one(dev);
4771
4772 rtl8192_down(dev);
4773 kfree(priv->pFirmware);
4774 priv->pFirmware = NULL;
4775 rtl8192_usb_deleteendpoints(dev);
4776 usleep_range(10000, 11000);
4777 free_ieee80211(dev);
4778
4779 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
4780 }
4781
rtl8192_usb_module_init(void)4782 static int __init rtl8192_usb_module_init(void)
4783 {
4784 int ret;
4785
4786 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
4787 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
4788 RT_TRACE(COMP_INIT, "Initializing module");
4789 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
4790
4791 ret = ieee80211_debug_init();
4792 if (ret) {
4793 pr_err("ieee80211_debug_init() failed %d\n", ret);
4794 return ret;
4795 }
4796
4797 ret = ieee80211_crypto_init();
4798 if (ret) {
4799 pr_err("ieee80211_crypto_init() failed %d\n", ret);
4800 goto debug_exit;
4801 }
4802
4803 ret = ieee80211_crypto_tkip_init();
4804 if (ret) {
4805 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
4806 goto crypto_exit;
4807 }
4808
4809 ret = ieee80211_crypto_ccmp_init();
4810 if (ret) {
4811 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
4812 goto crypto_tkip_exit;
4813 }
4814
4815 ret = ieee80211_crypto_wep_init();
4816 if (ret) {
4817 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
4818 goto crypto_ccmp_exit;
4819 }
4820
4821 rtl8192_proc_module_init();
4822 ret = usb_register(&rtl8192_usb_driver);
4823 if (ret)
4824 goto rtl8192_proc_module_exit;
4825 return ret;
4826
4827 rtl8192_proc_module_exit:
4828 remove_proc_entry(RTL819XU_MODULE_NAME, init_net.proc_net);
4829 ieee80211_crypto_wep_exit();
4830 crypto_ccmp_exit:
4831 ieee80211_crypto_ccmp_exit();
4832 crypto_tkip_exit:
4833 ieee80211_crypto_tkip_exit();
4834 crypto_exit:
4835 ieee80211_crypto_deinit();
4836 debug_exit:
4837 ieee80211_debug_exit();
4838 return ret;
4839 }
4840
rtl8192_usb_module_exit(void)4841 static void __exit rtl8192_usb_module_exit(void)
4842 {
4843 usb_deregister(&rtl8192_usb_driver);
4844 remove_proc_entry(RTL819XU_MODULE_NAME, init_net.proc_net);
4845 ieee80211_crypto_wep_exit();
4846 ieee80211_crypto_ccmp_exit();
4847 ieee80211_crypto_tkip_exit();
4848 ieee80211_crypto_deinit();
4849 ieee80211_debug_exit();
4850 RT_TRACE(COMP_DOWN, "Exiting");
4851 }
4852
EnableHWSecurityConfig8192(struct net_device * dev)4853 void EnableHWSecurityConfig8192(struct net_device *dev)
4854 {
4855 u8 SECR_value = 0x0;
4856 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4857 struct ieee80211_device *ieee = priv->ieee80211;
4858
4859 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
4860 if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) {
4861 SECR_value |= SCR_RxUseDK;
4862 SECR_value |= SCR_TxUseDK;
4863 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
4864 SECR_value |= SCR_RxUseDK;
4865 SECR_value |= SCR_TxUseDK;
4866 }
4867 /* add HWSec active enable here.
4868 * default using hwsec. when peer AP is in N mode only and
4869 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
4870 * it), use software security. when peer AP is in b,g,n mode mixed and
4871 * pairwise_key_type is none_aes, use g mode hw security.
4872 */
4873
4874 ieee->hwsec_active = 1;
4875
4876 /* add hwsec_support flag to totol control hw_sec on/off */
4877 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
4878 ieee->hwsec_active = 0;
4879 SECR_value &= ~SCR_RxDecEnable;
4880 }
4881 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
4882 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
4883 SECR_value);
4884 write_nic_byte(dev, SECR, SECR_value);
4885 }
4886
setKey(struct net_device * dev,u8 entryno,u8 keyindex,u16 keytype,const u8 * macaddr,u8 defaultkey,u32 * keycontent)4887 void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype,
4888 const u8 *macaddr, u8 defaultkey, u32 *keycontent)
4889 {
4890 u32 target_command = 0;
4891 u32 target_content = 0;
4892 u16 us_config = 0;
4893 u8 i;
4894
4895 if (entryno >= TOTAL_CAM_ENTRY)
4896 RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__);
4897
4898 RT_TRACE(COMP_SEC,
4899 "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
4900 __func__, dev, entryno, keyindex, keytype, macaddr);
4901
4902 if (defaultkey)
4903 us_config |= BIT(15) | (keytype << 2);
4904 else
4905 us_config |= BIT(15) | (keytype << 2) | keyindex;
4906
4907 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
4908 target_command = i + CAM_CONTENT_COUNT * entryno;
4909 target_command |= BIT(31) | BIT(16);
4910
4911 if (i == 0) { /* MAC|Config */
4912 target_content = (u32)(*(macaddr + 0)) << 16 |
4913 (u32)(*(macaddr + 1)) << 24 |
4914 (u32)us_config;
4915
4916 write_nic_dword(dev, WCAMI, target_content);
4917 write_nic_dword(dev, RWCAM, target_command);
4918 } else if (i == 1) { /* MAC */
4919 target_content = (u32)(*(macaddr + 2)) |
4920 (u32)(*(macaddr + 3)) << 8 |
4921 (u32)(*(macaddr + 4)) << 16 |
4922 (u32)(*(macaddr + 5)) << 24;
4923 write_nic_dword(dev, WCAMI, target_content);
4924 write_nic_dword(dev, RWCAM, target_command);
4925 } else {
4926 /* Key Material */
4927 if (keycontent) {
4928 write_nic_dword(dev, WCAMI,
4929 *(keycontent + i - 2));
4930 write_nic_dword(dev, RWCAM, target_command);
4931 }
4932 }
4933 }
4934 }
4935
4936 /***************************************************************************
4937 * ------------------- module init / exit stubs ----------------
4938 ****************************************************************************/
4939 module_init(rtl8192_usb_module_init);
4940 module_exit(rtl8192_usb_module_exit);
4941