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[deliverable/linux.git] / drivers / staging / rtl8192u / r8192U_core.c
1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 * Linux device driver for RTL8192U
4 *
5 * Based on the r8187 driver, which is:
6 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * The full GNU General Public License is included in this distribution in the
21 * file called LICENSE.
22 *
23 * Contact Information:
24 * Jerry chuang <wlanfae@realtek.com>
25 */
26
27 #ifndef CONFIG_FORCE_HARD_FLOAT
28 double __floatsidf(int i)
29 {
30 return i;
31 }
32
33 unsigned int __fixunsdfsi(double d)
34 {
35 return d;
36 }
37
38 double __adddf3(double a, double b)
39 {
40 return a + b;
41 }
42
43 double __addsf3(float a, float b)
44 {
45 return a + b;
46 }
47
48 double __subdf3(double a, double b)
49 {
50 return a - b;
51 }
52
53 double __extendsfdf2(float a)
54 {
55 return a;
56 }
57 #endif
58
59 #define CONFIG_RTL8192_IO_MAP
60
61 #include <linux/uaccess.h>
62 #include "r8192U_hw.h"
63 #include "r8192U.h"
64 #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
65 #include "r8180_93cx6.h" /* Card EEPROM */
66 #include "r8192U_wx.h"
67 #include "r819xU_phy.h"
68 #include "r819xU_phyreg.h"
69 #include "r819xU_cmdpkt.h"
70 #include "r8192U_dm.h"
71 #include <linux/usb.h>
72 #include <linux/slab.h>
73 #include <linux/proc_fs.h>
74 #include <linux/seq_file.h>
75 /* FIXME: check if 2.6.7 is ok */
76
77 #include "dot11d.h"
78 /* set here to open your trace code. */
79 u32 rt_global_debug_component = COMP_DOWN |
80 COMP_SEC |
81 COMP_ERR; /* always open err flags on */
82
83 #define TOTAL_CAM_ENTRY 32
84 #define CAM_CONTENT_COUNT 8
85
86 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
87 /* Realtek */
88 {USB_DEVICE(0x0bda, 0x8709)},
89 /* Corega */
90 {USB_DEVICE(0x07aa, 0x0043)},
91 /* Belkin */
92 {USB_DEVICE(0x050d, 0x805E)},
93 /* Sitecom */
94 {USB_DEVICE(0x0df6, 0x0031)},
95 /* EnGenius */
96 {USB_DEVICE(0x1740, 0x9201)},
97 /* Dlink */
98 {USB_DEVICE(0x2001, 0x3301)},
99 /* Zinwell */
100 {USB_DEVICE(0x5a57, 0x0290)},
101 /* LG */
102 {USB_DEVICE(0x043e, 0x7a01)},
103 {}
104 };
105
106 MODULE_LICENSE("GPL");
107 MODULE_VERSION("V 1.1");
108 MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl);
109 MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards");
110
111 static char *ifname = "wlan%d";
112 static int hwwep = 1; /* default use hw. set 0 to use software security */
113 static int channels = 0x3fff;
114
115
116
117 module_param(ifname, charp, S_IRUGO | S_IWUSR);
118 module_param(hwwep, int, S_IRUGO | S_IWUSR);
119 module_param(channels, int, S_IRUGO | S_IWUSR);
120
121 MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default");
122 MODULE_PARM_DESC(hwwep, " Try to use hardware security support. ");
123 MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
124
125 static int rtl8192_usb_probe(struct usb_interface *intf,
126 const struct usb_device_id *id);
127 static void rtl8192_usb_disconnect(struct usb_interface *intf);
128
129
130 static struct usb_driver rtl8192_usb_driver = {
131 .name = RTL819xU_MODULE_NAME, /* Driver name */
132 .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */
133 .probe = rtl8192_usb_probe, /* probe fn */
134 .disconnect = rtl8192_usb_disconnect, /* remove fn */
135 .suspend = NULL, /* PM suspend fn */
136 .resume = NULL, /* PM resume fn */
137 };
138
139
140 struct CHANNEL_LIST {
141 u8 Channel[32];
142 u8 Len;
143 };
144
145 static struct CHANNEL_LIST ChannelPlan[] = {
146 /* FCC */
147 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24},
148 /* IC */
149 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
150 /* ETSI */
151 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},
152 /* Spain. Change to ETSI. */
153 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
154 /* France. Change to ETSI. */
155 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
156 /* MKK */
157 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
158 /* MKK1 */
159 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
160 /* Israel. */
161 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
162 /* For 11a , TELEC */
163 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
164 /* MIC */
165 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},
166 /* For Global Domain. 1-11:active scan, 12-14 passive scan. */
167 {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}
168 };
169
170 static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv)
171 {
172 int i, max_chan = -1, min_chan = -1;
173 struct ieee80211_device *ieee = priv->ieee80211;
174
175 switch (channel_plan) {
176 case COUNTRY_CODE_FCC:
177 case COUNTRY_CODE_IC:
178 case COUNTRY_CODE_ETSI:
179 case COUNTRY_CODE_SPAIN:
180 case COUNTRY_CODE_FRANCE:
181 case COUNTRY_CODE_MKK:
182 case COUNTRY_CODE_MKK1:
183 case COUNTRY_CODE_ISRAEL:
184 case COUNTRY_CODE_TELEC:
185 case COUNTRY_CODE_MIC:
186 Dot11d_Init(ieee);
187 ieee->bGlobalDomain = false;
188 /* actually 8225 & 8256 rf chips only support B,G,24N mode */
189 if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) {
190 min_chan = 1;
191 max_chan = 14;
192 } else {
193 RT_TRACE(COMP_ERR,
194 "unknown rf chip, can't set channel map in function:%s()\n",
195 __func__);
196 }
197 if (ChannelPlan[channel_plan].Len != 0) {
198 /* Clear old channel map */
199 memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
200 sizeof(GET_DOT11D_INFO(ieee)->channel_map));
201 /* Set new channel map */
202 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
203 if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
204 break;
205 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
206 }
207 }
208 break;
209
210 case COUNTRY_CODE_GLOBAL_DOMAIN:
211 /* this flag enabled to follow 11d country IE setting,
212 * otherwise, it shall follow global domain settings.
213 */
214 GET_DOT11D_INFO(ieee)->bEnabled = 0;
215 Dot11d_Reset(ieee);
216 ieee->bGlobalDomain = true;
217 break;
218
219 default:
220 break;
221 }
222 }
223
224
225
226
227 static void CamResetAllEntry(struct net_device *dev)
228 {
229 u32 ulcommand = 0;
230 /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA
231 * associate to AP. However, ResetKey is called on
232 * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this
233 * condition, Cam can not be reset because upper layer will not set
234 * this static key again.
235 */
236 ulcommand |= BIT31 | BIT30;
237 write_nic_dword(dev, RWCAM, ulcommand);
238
239 }
240
241
242 void write_cam(struct net_device *dev, u8 addr, u32 data)
243 {
244 write_nic_dword(dev, WCAMI, data);
245 write_nic_dword(dev, RWCAM, BIT31 | BIT16 | (addr & 0xff));
246 }
247
248 u32 read_cam(struct net_device *dev, u8 addr)
249 {
250 u32 data;
251
252 write_nic_dword(dev, RWCAM, 0x80000000 | (addr & 0xff));
253 read_nic_dword(dev, 0xa8, &data);
254 return data;
255 }
256
257 void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
258 {
259 int status;
260 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
261 struct usb_device *udev = priv->udev;
262
263 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
264 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
265 indx | 0xfe00, 0, &data, 1, HZ / 2);
266
267 if (status < 0)
268 netdev_err(dev, "write_nic_byte_E TimeOut! status: %d\n",
269 status);
270 }
271
272 int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
273 {
274 int status;
275 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
276 struct usb_device *udev = priv->udev;
277
278 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
279 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
280 indx | 0xfe00, 0, data, 1, HZ / 2);
281
282 if (status < 0) {
283 netdev_err(dev, "%s failure status: %d\n", __func__, status);
284 return status;
285 }
286
287 return 0;
288 }
289 /* as 92U has extend page from 4 to 16, so modify functions below. */
290 void write_nic_byte(struct net_device *dev, int indx, u8 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
297 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
298 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
299 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
300 &data, 1, HZ / 2);
301
302 if (status < 0)
303 netdev_err(dev, "write_nic_byte TimeOut! status: %d\n", status);
304
305
306 }
307
308
309 void write_nic_word(struct net_device *dev, int indx, u16 data)
310 {
311
312 int status;
313
314 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
315 struct usb_device *udev = priv->udev;
316
317 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
318 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
319 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
320 &data, 2, HZ / 2);
321
322 if (status < 0)
323 netdev_err(dev, "write_nic_word TimeOut! status: %d\n", status);
324
325 }
326
327
328 void write_nic_dword(struct net_device *dev, int indx, u32 data)
329 {
330
331 int status;
332
333 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
334 struct usb_device *udev = priv->udev;
335
336 status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
337 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
338 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
339 &data, 4, HZ / 2);
340
341
342 if (status < 0)
343 netdev_err(dev, "write_nic_dword TimeOut! status: %d\n",
344 status);
345
346 }
347
348
349
350 int read_nic_byte(struct net_device *dev, int indx, u8 *data)
351 {
352 int status;
353 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
354 struct usb_device *udev = priv->udev;
355
356 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
357 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
358 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
359 data, 1, HZ / 2);
360
361 if (status < 0) {
362 netdev_err(dev, "%s failure status: %d\n", __func__, status);
363 return status;
364 }
365
366 return 0;
367 }
368
369
370
371 int read_nic_word(struct net_device *dev, int indx, u16 *data)
372 {
373 int status;
374 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
375 struct usb_device *udev = priv->udev;
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 data, 2, HZ / 2);
381
382 if (status < 0) {
383 netdev_err(dev, "%s failure status: %d\n", __func__, status);
384 return status;
385 }
386
387 return 0;
388 }
389
390 static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
391 {
392 int status;
393 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
394 struct usb_device *udev = priv->udev;
395
396 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
397 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
398 indx | 0xfe00, 0, data, 2, HZ / 2);
399
400 if (status < 0) {
401 netdev_err(dev, "%s failure status: %d\n", __func__, status);
402 return status;
403 }
404
405 return 0;
406 }
407
408 int read_nic_dword(struct net_device *dev, int indx, u32 *data)
409 {
410 int status;
411
412 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
413 struct usb_device *udev = priv->udev;
414
415 status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
416 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
417 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
418 data, 4, HZ / 2);
419
420 if (status < 0) {
421 netdev_err(dev, "%s failure status: %d\n", __func__, status);
422 return status;
423 }
424
425 return 0;
426 }
427
428 /* u8 read_phy_cck(struct net_device *dev, u8 adr); */
429 /* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */
430 /* this might still called in what was the PHY rtl8185/rtl8192 common code
431 * plans are to possibility turn it again in one common code...
432 */
433 inline void force_pci_posting(struct net_device *dev)
434 {
435 }
436
437 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
438 static void rtl8192_restart(struct work_struct *work);
439 static void watch_dog_timer_callback(unsigned long data);
440
441 /****************************************************************************
442 * -----------------------------PROCFS STUFF-------------------------
443 *****************************************************************************
444 */
445
446 static struct proc_dir_entry *rtl8192_proc;
447
448 static int proc_get_stats_ap(struct seq_file *m, void *v)
449 {
450 struct net_device *dev = m->private;
451 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
452 struct ieee80211_device *ieee = priv->ieee80211;
453 struct ieee80211_network *target;
454
455 list_for_each_entry(target, &ieee->network_list, list) {
456 const char *wpa = "non_WPA";
457
458 if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0)
459 wpa = "WPA";
460
461 seq_printf(m, "%s %s\n", target->ssid, wpa);
462 }
463
464 return 0;
465 }
466
467 static int proc_get_registers(struct seq_file *m, void *v)
468 {
469 struct net_device *dev = m->private;
470 int i, n, max = 0xff;
471 u8 byte_rd;
472
473 seq_puts(m, "\n####################page 0##################\n ");
474
475 for (n = 0; n <= max;) {
476 seq_printf(m, "\nD: %2x > ", n);
477
478 for (i = 0; i < 16 && n <= max; i++, n++) {
479 read_nic_byte(dev, 0x000 | n, &byte_rd);
480 seq_printf(m, "%2x ", byte_rd);
481 }
482 }
483
484 seq_puts(m, "\n####################page 1##################\n ");
485 for (n = 0; n <= max;) {
486 seq_printf(m, "\nD: %2x > ", n);
487
488 for (i = 0; i < 16 && n <= max; i++, n++) {
489 read_nic_byte(dev, 0x100 | n, &byte_rd);
490 seq_printf(m, "%2x ", byte_rd);
491 }
492 }
493
494 seq_puts(m, "\n####################page 3##################\n ");
495 for (n = 0; n <= max;) {
496 seq_printf(m, "\nD: %2x > ", n);
497
498 for (i = 0; i < 16 && n <= max; i++, n++) {
499 read_nic_byte(dev, 0x300 | n, &byte_rd);
500 seq_printf(m, "%2x ", byte_rd);
501 }
502 }
503
504 seq_putc(m, '\n');
505 return 0;
506 }
507
508 static int proc_get_stats_tx(struct seq_file *m, void *v)
509 {
510 struct net_device *dev = m->private;
511 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
512
513 seq_printf(m,
514 "TX VI priority ok int: %lu\n"
515 "TX VI priority error int: %lu\n"
516 "TX VO priority ok int: %lu\n"
517 "TX VO priority error int: %lu\n"
518 "TX BE priority ok int: %lu\n"
519 "TX BE priority error int: %lu\n"
520 "TX BK priority ok int: %lu\n"
521 "TX BK priority error int: %lu\n"
522 "TX MANAGE priority ok int: %lu\n"
523 "TX MANAGE priority error int: %lu\n"
524 "TX BEACON priority ok int: %lu\n"
525 "TX BEACON priority error int: %lu\n"
526 "TX queue resume: %lu\n"
527 "TX queue stopped?: %d\n"
528 "TX fifo overflow: %lu\n"
529 "TX VI queue: %d\n"
530 "TX VO queue: %d\n"
531 "TX BE queue: %d\n"
532 "TX BK queue: %d\n"
533 "TX VI dropped: %lu\n"
534 "TX VO dropped: %lu\n"
535 "TX BE dropped: %lu\n"
536 "TX BK dropped: %lu\n"
537 "TX total data packets %lu\n",
538 priv->stats.txviokint,
539 priv->stats.txvierr,
540 priv->stats.txvookint,
541 priv->stats.txvoerr,
542 priv->stats.txbeokint,
543 priv->stats.txbeerr,
544 priv->stats.txbkokint,
545 priv->stats.txbkerr,
546 priv->stats.txmanageokint,
547 priv->stats.txmanageerr,
548 priv->stats.txbeaconokint,
549 priv->stats.txbeaconerr,
550 priv->stats.txresumed,
551 netif_queue_stopped(dev),
552 priv->stats.txoverflow,
553 atomic_read(&(priv->tx_pending[VI_PRIORITY])),
554 atomic_read(&(priv->tx_pending[VO_PRIORITY])),
555 atomic_read(&(priv->tx_pending[BE_PRIORITY])),
556 atomic_read(&(priv->tx_pending[BK_PRIORITY])),
557 priv->stats.txvidrop,
558 priv->stats.txvodrop,
559 priv->stats.txbedrop,
560 priv->stats.txbkdrop,
561 priv->stats.txdatapkt
562 );
563
564 return 0;
565 }
566
567 static int proc_get_stats_rx(struct seq_file *m, void *v)
568 {
569 struct net_device *dev = m->private;
570 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
571
572 seq_printf(m,
573 "RX packets: %lu\n"
574 "RX urb status error: %lu\n"
575 "RX invalid urb error: %lu\n",
576 priv->stats.rxoktotal,
577 priv->stats.rxstaterr,
578 priv->stats.rxurberr);
579
580 return 0;
581 }
582
583 static void rtl8192_proc_module_init(void)
584 {
585 RT_TRACE(COMP_INIT, "Initializing proc filesystem");
586 rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
587 }
588
589 /*
590 * seq_file wrappers for procfile show routines.
591 */
592 static int rtl8192_proc_open(struct inode *inode, struct file *file)
593 {
594 struct net_device *dev = proc_get_parent_data(inode);
595 int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
596
597 return single_open(file, show, dev);
598 }
599
600 static const struct file_operations rtl8192_proc_fops = {
601 .open = rtl8192_proc_open,
602 .read = seq_read,
603 .llseek = seq_lseek,
604 .release = single_release,
605 };
606
607 /*
608 * Table of proc files we need to create.
609 */
610 struct rtl8192_proc_file {
611 char name[12];
612 int (*show)(struct seq_file *, void *);
613 };
614
615 static const struct rtl8192_proc_file rtl8192_proc_files[] = {
616 { "stats-rx", &proc_get_stats_rx },
617 { "stats-tx", &proc_get_stats_tx },
618 { "stats-ap", &proc_get_stats_ap },
619 { "registers", &proc_get_registers },
620 { "" }
621 };
622
623 static void rtl8192_proc_init_one(struct net_device *dev)
624 {
625 const struct rtl8192_proc_file *f;
626 struct proc_dir_entry *dir;
627
628 if (rtl8192_proc) {
629 dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
630 if (!dir) {
631 RT_TRACE(COMP_ERR,
632 "Unable to initialize /proc/net/rtl8192/%s\n",
633 dev->name);
634 return;
635 }
636
637 for (f = rtl8192_proc_files; f->name[0]; f++) {
638 if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
639 &rtl8192_proc_fops, f->show)) {
640 RT_TRACE(COMP_ERR,
641 "Unable to initialize /proc/net/rtl8192/%s/%s\n",
642 dev->name, f->name);
643 return;
644 }
645 }
646 }
647 }
648
649 static void rtl8192_proc_remove_one(struct net_device *dev)
650 {
651 remove_proc_subtree(dev->name, rtl8192_proc);
652 }
653
654 /****************************************************************************
655 -----------------------------MISC STUFF-------------------------
656 *****************************************************************************/
657
658 short check_nic_enough_desc(struct net_device *dev, int queue_index)
659 {
660 struct r8192_priv *priv = ieee80211_priv(dev);
661 int used = atomic_read(&priv->tx_pending[queue_index]);
662
663 return (used < MAX_TX_URB);
664 }
665
666 static void tx_timeout(struct net_device *dev)
667 {
668 struct r8192_priv *priv = ieee80211_priv(dev);
669
670 schedule_work(&priv->reset_wq);
671 }
672
673 void rtl8192_update_msr(struct net_device *dev)
674 {
675 struct r8192_priv *priv = ieee80211_priv(dev);
676 u8 msr;
677
678 read_nic_byte(dev, MSR, &msr);
679 msr &= ~MSR_LINK_MASK;
680
681 /* do not change in link_state != WLAN_LINK_ASSOCIATED.
682 * msr must be updated if the state is ASSOCIATING.
683 * this is intentional and make sense for ad-hoc and
684 * master (see the create BSS/IBSS func)
685 */
686 if (priv->ieee80211->state == IEEE80211_LINKED) {
687
688 if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
689 msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT);
690 else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
691 msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT);
692 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
693 msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT);
694
695 } else {
696 msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT);
697 }
698
699 write_nic_byte(dev, MSR, msr);
700 }
701
702 void rtl8192_set_chan(struct net_device *dev, short ch)
703 {
704 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
705
706 RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch);
707 priv->chan = ch;
708
709 /* this hack should avoid frame TX during channel setting*/
710
711 /* need to implement rf set channel here */
712
713 if (priv->rf_set_chan)
714 priv->rf_set_chan(dev, priv->chan);
715 mdelay(10);
716 }
717
718 static void rtl8192_rx_isr(struct urb *urb);
719
720 static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
721 {
722
723 return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize
724 + pstats->RxBufShift);
725
726 }
727 static int rtl8192_rx_initiate(struct net_device *dev)
728 {
729 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
730 struct urb *entry;
731 struct sk_buff *skb;
732 struct rtl8192_rx_info *info;
733
734 /* nomal packet rx procedure */
735 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) {
736 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
737 if (!skb)
738 break;
739 entry = usb_alloc_urb(0, GFP_KERNEL);
740 if (!entry) {
741 kfree_skb(skb);
742 break;
743 }
744 usb_fill_bulk_urb(entry, priv->udev,
745 usb_rcvbulkpipe(priv->udev, 3),
746 skb_tail_pointer(skb),
747 RX_URB_SIZE, rtl8192_rx_isr, skb);
748 info = (struct rtl8192_rx_info *)skb->cb;
749 info->urb = entry;
750 info->dev = dev;
751 info->out_pipe = 3; /* denote rx normal packet queue */
752 skb_queue_tail(&priv->rx_queue, skb);
753 usb_submit_urb(entry, GFP_KERNEL);
754 }
755
756 /* command packet rx procedure */
757 while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) {
758 skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL);
759 if (!skb)
760 break;
761 entry = usb_alloc_urb(0, GFP_KERNEL);
762 if (!entry) {
763 kfree_skb(skb);
764 break;
765 }
766 usb_fill_bulk_urb(entry, priv->udev,
767 usb_rcvbulkpipe(priv->udev, 9),
768 skb_tail_pointer(skb),
769 RX_URB_SIZE, rtl8192_rx_isr, skb);
770 info = (struct rtl8192_rx_info *)skb->cb;
771 info->urb = entry;
772 info->dev = dev;
773 info->out_pipe = 9; /* denote rx cmd packet queue */
774 skb_queue_tail(&priv->rx_queue, skb);
775 usb_submit_urb(entry, GFP_KERNEL);
776 }
777
778 return 0;
779 }
780
781 void rtl8192_set_rxconf(struct net_device *dev)
782 {
783 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
784 u32 rxconf;
785
786 read_nic_dword(dev, RCR, &rxconf);
787 rxconf = rxconf & ~MAC_FILTER_MASK;
788 rxconf = rxconf | RCR_AMF;
789 rxconf = rxconf | RCR_ADF;
790 rxconf = rxconf | RCR_AB;
791 rxconf = rxconf | RCR_AM;
792
793 if (dev->flags & IFF_PROMISC)
794 DMESG("NIC in promisc mode");
795
796 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR ||
797 dev->flags & IFF_PROMISC) {
798 rxconf = rxconf | RCR_AAP;
799 } else {
800 rxconf = rxconf | RCR_APM;
801 rxconf = rxconf | RCR_CBSSID;
802 }
803
804
805 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
806 rxconf = rxconf | RCR_AICV;
807 rxconf = rxconf | RCR_APWRMGT;
808 }
809
810 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
811 rxconf = rxconf | RCR_ACRC32;
812
813
814 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
815 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
816 rxconf = rxconf & ~MAX_RX_DMA_MASK;
817 rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET);
818
819 rxconf = rxconf | RCR_ONLYERLPKT;
820
821 write_nic_dword(dev, RCR, rxconf);
822 }
823 /* wait to be removed */
824 void rtl8192_rx_enable(struct net_device *dev)
825 {
826 rtl8192_rx_initiate(dev);
827 }
828
829
830 void rtl8192_tx_enable(struct net_device *dev)
831 {
832 }
833
834
835
836 void rtl8192_rtx_disable(struct net_device *dev)
837 {
838 u8 cmd;
839 struct r8192_priv *priv = ieee80211_priv(dev);
840 struct sk_buff *skb;
841 struct rtl8192_rx_info *info;
842
843 read_nic_byte(dev, CMDR, &cmd);
844 write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE));
845 force_pci_posting(dev);
846 mdelay(10);
847
848 while ((skb = __skb_dequeue(&priv->rx_queue))) {
849 info = (struct rtl8192_rx_info *)skb->cb;
850 if (!info->urb)
851 continue;
852
853 usb_kill_urb(info->urb);
854 kfree_skb(skb);
855 }
856
857 if (skb_queue_len(&priv->skb_queue))
858 netdev_warn(dev, "skb_queue not empty\n");
859
860 skb_queue_purge(&priv->skb_queue);
861 }
862
863 inline u16 ieeerate2rtlrate(int rate)
864 {
865 switch (rate) {
866 case 10:
867 return 0;
868 case 20:
869 return 1;
870 case 55:
871 return 2;
872 case 110:
873 return 3;
874 case 60:
875 return 4;
876 case 90:
877 return 5;
878 case 120:
879 return 6;
880 case 180:
881 return 7;
882 case 240:
883 return 8;
884 case 360:
885 return 9;
886 case 480:
887 return 10;
888 case 540:
889 return 11;
890 default:
891 return 3;
892
893 }
894 }
895 static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540};
896 inline u16 rtl8192_rate2rate(short rate)
897 {
898 if (rate > 11)
899 return 0;
900 return rtl_rate[rate];
901 }
902
903
904 /* The prototype of rx_isr has changed since one version of Linux Kernel */
905 static void rtl8192_rx_isr(struct urb *urb)
906 {
907 struct sk_buff *skb = (struct sk_buff *)urb->context;
908 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
909 struct net_device *dev = info->dev;
910 struct r8192_priv *priv = ieee80211_priv(dev);
911 int out_pipe = info->out_pipe;
912 int err;
913
914 if (!priv->up)
915 return;
916
917 if (unlikely(urb->status)) {
918 info->urb = NULL;
919 priv->stats.rxstaterr++;
920 priv->ieee80211->stats.rx_errors++;
921 usb_free_urb(urb);
922 return;
923 }
924 skb_unlink(skb, &priv->rx_queue);
925 skb_put(skb, urb->actual_length);
926
927 skb_queue_tail(&priv->skb_queue, skb);
928 tasklet_schedule(&priv->irq_rx_tasklet);
929
930 skb = dev_alloc_skb(RX_URB_SIZE);
931 if (unlikely(!skb)) {
932 usb_free_urb(urb);
933 netdev_err(dev, "%s(): can't alloc skb\n", __func__);
934 /* TODO check rx queue length and refill *somewhere* */
935 return;
936 }
937
938 usb_fill_bulk_urb(urb, priv->udev,
939 usb_rcvbulkpipe(priv->udev, out_pipe),
940 skb_tail_pointer(skb),
941 RX_URB_SIZE, rtl8192_rx_isr, skb);
942
943 info = (struct rtl8192_rx_info *)skb->cb;
944 info->urb = urb;
945 info->dev = dev;
946 info->out_pipe = out_pipe;
947
948 urb->transfer_buffer = skb_tail_pointer(skb);
949 urb->context = skb;
950 skb_queue_tail(&priv->rx_queue, skb);
951 err = usb_submit_urb(urb, GFP_ATOMIC);
952 if (err && err != EPERM)
953 netdev_err(dev,
954 "can not submit rxurb, err is %x, URB status is %x\n",
955 err, urb->status);
956 }
957
958 static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
959 struct ieee80211_rx_stats *pstats)
960 {
961 u32 status;
962
963 status = cmpk_message_handle_rx(dev, pstats);
964 if (status)
965 DMESG("rxcommandpackethandle819xusb: It is a command packet\n");
966
967 return status;
968 }
969
970
971 static void rtl8192_data_hard_stop(struct net_device *dev)
972 {
973 /* FIXME !! */
974 }
975
976
977 static void rtl8192_data_hard_resume(struct net_device *dev)
978 {
979 /* FIXME !! */
980 }
981
982 /* this function TX data frames when the ieee80211 stack requires this.
983 * It checks also if we need to stop the ieee tx queue, eventually do it
984 */
985 static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
986 int rate)
987 {
988 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
989 int ret;
990 unsigned long flags;
991 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
992 u8 queue_index = tcb_desc->queue_index;
993
994 /* shall not be referred by command packet */
995 RTL8192U_ASSERT(queue_index != TXCMD_QUEUE);
996
997 spin_lock_irqsave(&priv->tx_lock, flags);
998
999 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1000 tcb_desc->bTxEnableFwCalcDur = 1;
1001 skb_push(skb, priv->ieee80211->tx_headroom);
1002 ret = rtl8192_tx(dev, skb);
1003
1004 spin_unlock_irqrestore(&priv->tx_lock, flags);
1005 }
1006
1007 /* This is a rough attempt to TX a frame
1008 * This is called by the ieee 80211 stack to TX management frames.
1009 * If the ring is full packet are dropped (for data frame the queue
1010 * is stopped before this can happen).
1011 */
1012 static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1013 {
1014 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
1015 int ret;
1016 unsigned long flags;
1017 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1018 u8 queue_index = tcb_desc->queue_index;
1019
1020
1021 spin_lock_irqsave(&priv->tx_lock, flags);
1022
1023 memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
1024 if (queue_index == TXCMD_QUEUE) {
1025 skb_push(skb, USB_HWDESC_HEADER_LEN);
1026 rtl819xU_tx_cmd(dev, skb);
1027 ret = 1;
1028 } else {
1029 skb_push(skb, priv->ieee80211->tx_headroom);
1030 ret = rtl8192_tx(dev, skb);
1031 }
1032
1033 spin_unlock_irqrestore(&priv->tx_lock, flags);
1034
1035 return ret;
1036 }
1037
1038 static void rtl8192_tx_isr(struct urb *tx_urb)
1039 {
1040 struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
1041 struct net_device *dev = (struct net_device *)(skb->cb);
1042 struct r8192_priv *priv = NULL;
1043 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1044 u8 queue_index = tcb_desc->queue_index;
1045
1046 priv = ieee80211_priv(dev);
1047
1048 if (tcb_desc->queue_index != TXCMD_QUEUE) {
1049 if (tx_urb->status == 0) {
1050 dev->trans_start = jiffies;
1051 priv->stats.txoktotal++;
1052 priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
1053 priv->stats.txbytesunicast +=
1054 (skb->len - priv->ieee80211->tx_headroom);
1055 } else {
1056 priv->ieee80211->stats.tx_errors++;
1057 /* TODO */
1058 }
1059 }
1060
1061 /* free skb and tx_urb */
1062 if (skb != NULL) {
1063 dev_kfree_skb_any(skb);
1064 usb_free_urb(tx_urb);
1065 atomic_dec(&priv->tx_pending[queue_index]);
1066 }
1067
1068 /*
1069 * Handle HW Beacon:
1070 * We had transfer our beacon frame to host controller at this moment.
1071 *
1072 *
1073 * Caution:
1074 * Handling the wait queue of command packets.
1075 * For Tx command packets, we must not do TCB fragment because it is
1076 * not handled right now. We must cut the packets to match the size of
1077 * TX_CMD_PKT before we send it.
1078 */
1079
1080 /* Handle MPDU in wait queue. */
1081 if (queue_index != BEACON_QUEUE) {
1082 /* Don't send data frame during scanning.*/
1083 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) &&
1084 (!(priv->ieee80211->queue_stop))) {
1085 skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index]));
1086 if (skb)
1087 priv->ieee80211->softmac_hard_start_xmit(skb,
1088 dev);
1089
1090 return; /* avoid further processing AMSDU */
1091 }
1092 }
1093
1094 }
1095
1096 static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config)
1097 {
1098 struct r8192_priv *priv = ieee80211_priv(dev);
1099 struct ieee80211_network *net;
1100 u8 i = 0, basic_rate = 0;
1101
1102 net = &priv->ieee80211->current_network;
1103
1104 for (i = 0; i < net->rates_len; i++) {
1105 basic_rate = net->rates[i] & 0x7f;
1106 switch (basic_rate) {
1107 case MGN_1M:
1108 *rate_config |= RRSR_1M;
1109 break;
1110 case MGN_2M:
1111 *rate_config |= RRSR_2M;
1112 break;
1113 case MGN_5_5M:
1114 *rate_config |= RRSR_5_5M;
1115 break;
1116 case MGN_11M:
1117 *rate_config |= RRSR_11M;
1118 break;
1119 case MGN_6M:
1120 *rate_config |= RRSR_6M;
1121 break;
1122 case MGN_9M:
1123 *rate_config |= RRSR_9M;
1124 break;
1125 case MGN_12M:
1126 *rate_config |= RRSR_12M;
1127 break;
1128 case MGN_18M:
1129 *rate_config |= RRSR_18M;
1130 break;
1131 case MGN_24M:
1132 *rate_config |= RRSR_24M;
1133 break;
1134 case MGN_36M:
1135 *rate_config |= RRSR_36M;
1136 break;
1137 case MGN_48M:
1138 *rate_config |= RRSR_48M;
1139 break;
1140 case MGN_54M:
1141 *rate_config |= RRSR_54M;
1142 break;
1143 }
1144 }
1145 for (i = 0; i < net->rates_ex_len; i++) {
1146 basic_rate = net->rates_ex[i] & 0x7f;
1147 switch (basic_rate) {
1148 case MGN_1M:
1149 *rate_config |= RRSR_1M;
1150 break;
1151 case MGN_2M:
1152 *rate_config |= RRSR_2M;
1153 break;
1154 case MGN_5_5M:
1155 *rate_config |= RRSR_5_5M;
1156 break;
1157 case MGN_11M:
1158 *rate_config |= RRSR_11M;
1159 break;
1160 case MGN_6M:
1161 *rate_config |= RRSR_6M;
1162 break;
1163 case MGN_9M:
1164 *rate_config |= RRSR_9M;
1165 break;
1166 case MGN_12M:
1167 *rate_config |= RRSR_12M;
1168 break;
1169 case MGN_18M:
1170 *rate_config |= RRSR_18M;
1171 break;
1172 case MGN_24M:
1173 *rate_config |= RRSR_24M;
1174 break;
1175 case MGN_36M:
1176 *rate_config |= RRSR_36M;
1177 break;
1178 case MGN_48M:
1179 *rate_config |= RRSR_48M;
1180 break;
1181 case MGN_54M:
1182 *rate_config |= RRSR_54M;
1183 break;
1184 }
1185 }
1186 }
1187
1188
1189 #define SHORT_SLOT_TIME 9
1190 #define NON_SHORT_SLOT_TIME 20
1191
1192 static void rtl8192_update_cap(struct net_device *dev, u16 cap)
1193 {
1194 u32 tmp = 0;
1195 struct r8192_priv *priv = ieee80211_priv(dev);
1196 struct ieee80211_network *net = &priv->ieee80211->current_network;
1197
1198 priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
1199 tmp = priv->basic_rate;
1200 if (priv->short_preamble)
1201 tmp |= BRSR_AckShortPmb;
1202 write_nic_dword(dev, RRSR, tmp);
1203
1204 if (net->mode & (IEEE_G | IEEE_N_24G)) {
1205 u8 slot_time = 0;
1206
1207 if ((cap & WLAN_CAPABILITY_SHORT_SLOT) &&
1208 (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
1209 /* short slot time */
1210 slot_time = SHORT_SLOT_TIME;
1211 else /* long slot time */
1212 slot_time = NON_SHORT_SLOT_TIME;
1213 priv->slot_time = slot_time;
1214 write_nic_byte(dev, SLOT_TIME, slot_time);
1215 }
1216
1217 }
1218 static void rtl8192_net_update(struct net_device *dev)
1219 {
1220
1221 struct r8192_priv *priv = ieee80211_priv(dev);
1222 struct ieee80211_network *net;
1223 u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
1224 u16 rate_config = 0;
1225
1226 net = &priv->ieee80211->current_network;
1227
1228 rtl8192_config_rate(dev, &rate_config);
1229 priv->basic_rate = rate_config & 0x15f;
1230
1231 write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
1232 write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]);
1233
1234 rtl8192_update_msr(dev);
1235 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
1236 write_nic_word(dev, ATIMWND, 2);
1237 write_nic_word(dev, BCN_DMATIME, 1023);
1238 write_nic_word(dev, BCN_INTERVAL, net->beacon_interval);
1239 write_nic_word(dev, BCN_DRV_EARLY_INT, 1);
1240 write_nic_byte(dev, BCN_ERR_THRESH, 100);
1241 BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT);
1242 /* TODO: BcnIFS may required to be changed on ASIC */
1243 BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS;
1244
1245 write_nic_word(dev, BCN_TCFG, BcnTimeCfg);
1246 }
1247
1248
1249
1250 }
1251
1252 /* temporary hw beacon is not used any more.
1253 * open it when necessary
1254 */
1255 void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate)
1256 {
1257
1258 }
1259 inline u8 rtl8192_IsWirelessBMode(u16 rate)
1260 {
1261 if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220))
1262 return 1;
1263 else
1264 return 0;
1265 }
1266
1267 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
1268 {
1269 struct r8192_priv *priv = ieee80211_priv(dev);
1270 int status;
1271 struct urb *tx_urb;
1272 unsigned int idx_pipe;
1273 tx_desc_cmd_819x_usb *pdesc = (tx_desc_cmd_819x_usb *)skb->data;
1274 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1275 u8 queue_index = tcb_desc->queue_index;
1276
1277 atomic_inc(&priv->tx_pending[queue_index]);
1278 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1279 if (!tx_urb) {
1280 dev_kfree_skb(skb);
1281 return -ENOMEM;
1282 }
1283
1284 memset(pdesc, 0, USB_HWDESC_HEADER_LEN);
1285 /* Tx descriptor ought to be set according to the skb->cb */
1286 pdesc->FirstSeg = 1;
1287 pdesc->LastSeg = 1;
1288 pdesc->CmdInit = tcb_desc->bCmdOrInit;
1289 pdesc->TxBufferSize = tcb_desc->txbuf_size;
1290 pdesc->OWN = 1;
1291 pdesc->LINIP = tcb_desc->bLastIniPkt;
1292
1293 /*---------------------------------------------------------------------
1294 * Fill up USB_OUT_CONTEXT.
1295 *---------------------------------------------------------------------
1296 */
1297 idx_pipe = 0x04;
1298 usb_fill_bulk_urb(tx_urb, priv->udev,
1299 usb_sndbulkpipe(priv->udev, idx_pipe),
1300 skb->data, skb->len, rtl8192_tx_isr, skb);
1301
1302 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1303
1304 if (!status)
1305 return 0;
1306
1307 DMESGE("Error TX CMD URB, error %d", status);
1308 return -1;
1309 }
1310
1311 /*
1312 * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
1313 * in TxFwInfo data structure
1314 * 2006.10.30 by Emily
1315 *
1316 * \param QUEUEID Software Queue
1317 */
1318 static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
1319 {
1320 u8 QueueSelect = 0x0; /* defualt set to */
1321
1322 switch (QueueID) {
1323 case BE_QUEUE:
1324 QueueSelect = QSLT_BE;
1325 break;
1326
1327 case BK_QUEUE:
1328 QueueSelect = QSLT_BK;
1329 break;
1330
1331 case VO_QUEUE:
1332 QueueSelect = QSLT_VO;
1333 break;
1334
1335 case VI_QUEUE:
1336 QueueSelect = QSLT_VI;
1337 break;
1338 case MGNT_QUEUE:
1339 QueueSelect = QSLT_MGNT;
1340 break;
1341
1342 case BEACON_QUEUE:
1343 QueueSelect = QSLT_BEACON;
1344 break;
1345
1346 /* TODO: mark other queue selection until we verify it is OK */
1347 /* TODO: Remove Assertions */
1348 case TXCMD_QUEUE:
1349 QueueSelect = QSLT_CMD;
1350 break;
1351 case HIGH_QUEUE:
1352 QueueSelect = QSLT_HIGH;
1353 break;
1354
1355 default:
1356 RT_TRACE(COMP_ERR,
1357 "TransmitTCB(): Impossible Queue Selection: %d\n",
1358 QueueID);
1359 break;
1360 }
1361 return QueueSelect;
1362 }
1363
1364 static u8 MRateToHwRate8190Pci(u8 rate)
1365 {
1366 u8 ret = DESC90_RATE1M;
1367
1368 switch (rate) {
1369 case MGN_1M:
1370 ret = DESC90_RATE1M;
1371 break;
1372 case MGN_2M:
1373 ret = DESC90_RATE2M;
1374 break;
1375 case MGN_5_5M:
1376 ret = DESC90_RATE5_5M;
1377 break;
1378 case MGN_11M:
1379 ret = DESC90_RATE11M;
1380 break;
1381 case MGN_6M:
1382 ret = DESC90_RATE6M;
1383 break;
1384 case MGN_9M:
1385 ret = DESC90_RATE9M;
1386 break;
1387 case MGN_12M:
1388 ret = DESC90_RATE12M;
1389 break;
1390 case MGN_18M:
1391 ret = DESC90_RATE18M;
1392 break;
1393 case MGN_24M:
1394 ret = DESC90_RATE24M;
1395 break;
1396 case MGN_36M:
1397 ret = DESC90_RATE36M;
1398 break;
1399 case MGN_48M:
1400 ret = DESC90_RATE48M;
1401 break;
1402 case MGN_54M:
1403 ret = DESC90_RATE54M;
1404 break;
1405
1406 /* HT rate since here */
1407 case MGN_MCS0:
1408 ret = DESC90_RATEMCS0;
1409 break;
1410 case MGN_MCS1:
1411 ret = DESC90_RATEMCS1;
1412 break;
1413 case MGN_MCS2:
1414 ret = DESC90_RATEMCS2;
1415 break;
1416 case MGN_MCS3:
1417 ret = DESC90_RATEMCS3;
1418 break;
1419 case MGN_MCS4:
1420 ret = DESC90_RATEMCS4;
1421 break;
1422 case MGN_MCS5:
1423 ret = DESC90_RATEMCS5;
1424 break;
1425 case MGN_MCS6:
1426 ret = DESC90_RATEMCS6;
1427 break;
1428 case MGN_MCS7:
1429 ret = DESC90_RATEMCS7;
1430 break;
1431 case MGN_MCS8:
1432 ret = DESC90_RATEMCS8;
1433 break;
1434 case MGN_MCS9:
1435 ret = DESC90_RATEMCS9;
1436 break;
1437 case MGN_MCS10:
1438 ret = DESC90_RATEMCS10;
1439 break;
1440 case MGN_MCS11:
1441 ret = DESC90_RATEMCS11;
1442 break;
1443 case MGN_MCS12:
1444 ret = DESC90_RATEMCS12;
1445 break;
1446 case MGN_MCS13:
1447 ret = DESC90_RATEMCS13;
1448 break;
1449 case MGN_MCS14:
1450 ret = DESC90_RATEMCS14;
1451 break;
1452 case MGN_MCS15:
1453 ret = DESC90_RATEMCS15;
1454 break;
1455 case (0x80 | 0x20):
1456 ret = DESC90_RATEMCS32;
1457 break;
1458
1459 default:
1460 break;
1461 }
1462 return ret;
1463 }
1464
1465
1466 static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
1467 {
1468 u8 tmp_Short;
1469
1470 tmp_Short = (TxHT == 1) ?
1471 ((tcb_desc->bUseShortGI) ? 1 : 0) :
1472 ((tcb_desc->bUseShortPreamble) ? 1 : 0);
1473
1474 if (TxHT == 1 && TxRate != DESC90_RATEMCS15)
1475 tmp_Short = 0;
1476
1477 return tmp_Short;
1478 }
1479
1480 static void tx_zero_isr(struct urb *tx_urb)
1481 {
1482 }
1483
1484 /*
1485 * The tx procedure is just as following,
1486 * skb->cb will contain all the following information,
1487 * priority, morefrag, rate, &dev.
1488 * */
1489 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
1490 {
1491 struct r8192_priv *priv = ieee80211_priv(dev);
1492 cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
1493 tx_desc_819x_usb *tx_desc = (tx_desc_819x_usb *)skb->data;
1494 tx_fwinfo_819x_usb *tx_fwinfo =
1495 (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN);
1496 struct usb_device *udev = priv->udev;
1497 int pend;
1498 int status;
1499 struct urb *tx_urb = NULL, *tx_urb_zero = NULL;
1500 unsigned int idx_pipe;
1501
1502 pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]);
1503 /* we are locked here so the two atomic_read and inc are executed
1504 * without interleaves
1505 * !!! For debug purpose
1506 */
1507 if (pend > MAX_TX_URB) {
1508 netdev_dbg(dev, "To discard skb packet!\n");
1509 dev_kfree_skb_any(skb);
1510 return -1;
1511 }
1512
1513 tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
1514 if (!tx_urb) {
1515 dev_kfree_skb_any(skb);
1516 return -ENOMEM;
1517 }
1518
1519 /* Fill Tx firmware info */
1520 memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
1521 /* DWORD 0 */
1522 tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0;
1523 tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
1524 tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
1525 tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate,
1526 tcb_desc);
1527 if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
1528 tx_fwinfo->AllowAggregation = 1;
1529 /* DWORD 1 */
1530 tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
1531 tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07;
1532 } else {
1533 tx_fwinfo->AllowAggregation = 0;
1534 /* DWORD 1 */
1535 tx_fwinfo->RxMF = 0;
1536 tx_fwinfo->RxAMD = 0;
1537 }
1538
1539 /* Protection mode related */
1540 tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
1541 tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
1542 tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
1543 tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0;
1544 tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
1545 tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
1546 tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
1547 tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
1548 (tcb_desc->bRTSUseShortGI ? 1 : 0);
1549
1550 /* Set Bandwidth and sub-channel settings. */
1551 if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
1552 if (tcb_desc->bPacketBW) {
1553 tx_fwinfo->TxBandwidth = 1;
1554 /* use duplicated mode */
1555 tx_fwinfo->TxSubCarrier = 0;
1556 } else {
1557 tx_fwinfo->TxBandwidth = 0;
1558 tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
1559 }
1560 } else {
1561 tx_fwinfo->TxBandwidth = 0;
1562 tx_fwinfo->TxSubCarrier = 0;
1563 }
1564
1565 /* Fill Tx descriptor */
1566 memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
1567 /* DWORD 0 */
1568 tx_desc->LINIP = 0;
1569 tx_desc->CmdInit = 1;
1570 tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
1571 tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
1572
1573 /*DWORD 1*/
1574 tx_desc->SecCAMID = 0;
1575 tx_desc->RATid = tcb_desc->RATRIndex;
1576 tx_desc->NoEnc = 1;
1577 tx_desc->SecType = 0x0;
1578 if (tcb_desc->bHwSec) {
1579 switch (priv->ieee80211->pairwise_key_type) {
1580 case KEY_TYPE_WEP40:
1581 case KEY_TYPE_WEP104:
1582 tx_desc->SecType = 0x1;
1583 tx_desc->NoEnc = 0;
1584 break;
1585 case KEY_TYPE_TKIP:
1586 tx_desc->SecType = 0x2;
1587 tx_desc->NoEnc = 0;
1588 break;
1589 case KEY_TYPE_CCMP:
1590 tx_desc->SecType = 0x3;
1591 tx_desc->NoEnc = 0;
1592 break;
1593 case KEY_TYPE_NA:
1594 tx_desc->SecType = 0x0;
1595 tx_desc->NoEnc = 1;
1596 break;
1597 }
1598 }
1599
1600 tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
1601 tx_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
1602
1603 tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
1604 tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
1605
1606 /* Fill fields that are required to be initialized in
1607 * all of the descriptors
1608 */
1609 /* DWORD 0 */
1610 tx_desc->FirstSeg = 1;
1611 tx_desc->LastSeg = 1;
1612 tx_desc->OWN = 1;
1613
1614 /* DWORD 2 */
1615 tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
1616 idx_pipe = 0x5;
1617
1618 /* To submit bulk urb */
1619 usb_fill_bulk_urb(tx_urb, udev,
1620 usb_sndbulkpipe(udev, idx_pipe), skb->data,
1621 skb->len, rtl8192_tx_isr, skb);
1622
1623 status = usb_submit_urb(tx_urb, GFP_ATOMIC);
1624 if (!status) {
1625 /* We need to send 0 byte packet whenever
1626 * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has
1627 * been transmitted. Otherwise, it will be halt to wait for
1628 * another packet.
1629 */
1630 bool bSend0Byte = false;
1631 u8 zero = 0;
1632
1633 if (udev->speed == USB_SPEED_HIGH) {
1634 if (skb->len > 0 && skb->len % 512 == 0)
1635 bSend0Byte = true;
1636 } else {
1637 if (skb->len > 0 && skb->len % 64 == 0)
1638 bSend0Byte = true;
1639 }
1640 if (bSend0Byte) {
1641 tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC);
1642 if (!tx_urb_zero) {
1643 RT_TRACE(COMP_ERR,
1644 "can't alloc urb for zero byte\n");
1645 return -ENOMEM;
1646 }
1647 usb_fill_bulk_urb(tx_urb_zero, udev,
1648 usb_sndbulkpipe(udev, idx_pipe),
1649 &zero, 0, tx_zero_isr, dev);
1650 status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC);
1651 if (status) {
1652 RT_TRACE(COMP_ERR,
1653 "Error TX URB for zero byte %d, error %d",
1654 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1655 status);
1656 return -1;
1657 }
1658 }
1659 dev->trans_start = jiffies;
1660 atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
1661 return 0;
1662 }
1663
1664 RT_TRACE(COMP_ERR, "Error TX URB %d, error %d",
1665 atomic_read(&priv->tx_pending[tcb_desc->queue_index]),
1666 status);
1667 return -1;
1668 }
1669
1670 static short rtl8192_usb_initendpoints(struct net_device *dev)
1671 {
1672 struct r8192_priv *priv = ieee80211_priv(dev);
1673
1674 priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB + 1),
1675 GFP_KERNEL);
1676 if (priv->rx_urb == NULL)
1677 return -ENOMEM;
1678
1679 #ifndef JACKSON_NEW_RX
1680 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1681
1682 priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
1683
1684 priv->rx_urb[i]->transfer_buffer =
1685 kmalloc(RX_URB_SIZE, GFP_KERNEL);
1686
1687 priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
1688 }
1689 #endif
1690
1691 #ifdef THOMAS_BEACON
1692 {
1693 long align = 0;
1694 void *oldaddr, *newaddr;
1695
1696 priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
1697 priv->oldaddr = kmalloc(16, GFP_KERNEL);
1698 oldaddr = priv->oldaddr;
1699 align = ((long)oldaddr) & 3;
1700 if (align) {
1701 newaddr = oldaddr + 4 - align;
1702 priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align;
1703 } else {
1704 newaddr = oldaddr;
1705 priv->rx_urb[16]->transfer_buffer_length = 16;
1706 }
1707 priv->rx_urb[16]->transfer_buffer = newaddr;
1708 }
1709 #endif
1710
1711 memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB);
1712 priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
1713 GFP_KERNEL);
1714 if (!priv->pp_rxskb) {
1715 kfree(priv->rx_urb);
1716
1717 priv->pp_rxskb = NULL;
1718 priv->rx_urb = NULL;
1719
1720 DMESGE("Endpoint Alloc Failure");
1721 return -ENOMEM;
1722 }
1723
1724 netdev_dbg(dev, "End of initendpoints\n");
1725 return 0;
1726
1727 }
1728 #ifdef THOMAS_BEACON
1729 static void rtl8192_usb_deleteendpoints(struct net_device *dev)
1730 {
1731 int i;
1732 struct r8192_priv *priv = ieee80211_priv(dev);
1733
1734 if (priv->rx_urb) {
1735 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1736 usb_kill_urb(priv->rx_urb[i]);
1737 usb_free_urb(priv->rx_urb[i]);
1738 }
1739 kfree(priv->rx_urb);
1740 priv->rx_urb = NULL;
1741 }
1742 kfree(priv->oldaddr);
1743 priv->oldaddr = NULL;
1744
1745 kfree(priv->pp_rxskb);
1746 priv->pp_rxskb = NULL;
1747 }
1748 #else
1749 void rtl8192_usb_deleteendpoints(struct net_device *dev)
1750 {
1751 int i;
1752 struct r8192_priv *priv = ieee80211_priv(dev);
1753
1754 #ifndef JACKSON_NEW_RX
1755
1756 if (priv->rx_urb) {
1757 for (i = 0; i < (MAX_RX_URB + 1); i++) {
1758 usb_kill_urb(priv->rx_urb[i]);
1759 kfree(priv->rx_urb[i]->transfer_buffer);
1760 usb_free_urb(priv->rx_urb[i]);
1761 }
1762 kfree(priv->rx_urb);
1763 priv->rx_urb = NULL;
1764
1765 }
1766 #else
1767 kfree(priv->rx_urb);
1768 priv->rx_urb = NULL;
1769 kfree(priv->oldaddr);
1770 priv->oldaddr = NULL;
1771
1772 kfree(priv->pp_rxskb);
1773 priv->pp_rxskb = 0;
1774
1775 #endif
1776 }
1777 #endif
1778
1779 static void rtl8192_update_ratr_table(struct net_device *dev);
1780 static void rtl8192_link_change(struct net_device *dev)
1781 {
1782 struct r8192_priv *priv = ieee80211_priv(dev);
1783 struct ieee80211_device *ieee = priv->ieee80211;
1784
1785 if (ieee->state == IEEE80211_LINKED) {
1786 rtl8192_net_update(dev);
1787 rtl8192_update_ratr_table(dev);
1788 /* Add this as in pure N mode, wep encryption will use software
1789 * way, but there is no chance to set this as wep will not set
1790 * group key in wext.
1791 */
1792 if (KEY_TYPE_WEP40 == ieee->pairwise_key_type ||
1793 KEY_TYPE_WEP104 == ieee->pairwise_key_type)
1794 EnableHWSecurityConfig8192(dev);
1795 }
1796 /*update timing params*/
1797 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1798 u32 reg = 0;
1799
1800 read_nic_dword(dev, RCR, &reg);
1801 if (priv->ieee80211->state == IEEE80211_LINKED)
1802 priv->ReceiveConfig = reg |= RCR_CBSSID;
1803 else
1804 priv->ReceiveConfig = reg &= ~RCR_CBSSID;
1805 write_nic_dword(dev, RCR, reg);
1806 }
1807 }
1808
1809 static struct ieee80211_qos_parameters def_qos_parameters = {
1810 {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)},
1811 {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)},
1812 {2, 2, 2, 2},/* aifs */
1813 {0, 0, 0, 0},/* flags */
1814 {0, 0, 0, 0} /* tx_op_limit */
1815 };
1816
1817
1818 static void rtl8192_update_beacon(struct work_struct *work)
1819 {
1820 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1821 update_beacon_wq.work);
1822 struct net_device *dev = priv->ieee80211->dev;
1823 struct ieee80211_device *ieee = priv->ieee80211;
1824 struct ieee80211_network *net = &ieee->current_network;
1825
1826 if (ieee->pHTInfo->bCurrentHTSupport)
1827 HTUpdateSelfAndPeerSetting(ieee, net);
1828 ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
1829 net->bssht.bdRT2RTLongSlotTime;
1830 rtl8192_update_cap(dev, net->capability);
1831 }
1832 /*
1833 * background support to run QoS activate functionality
1834 */
1835 static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK,
1836 EDCAPARA_VI, EDCAPARA_VO};
1837 static void rtl8192_qos_activate(struct work_struct *work)
1838 {
1839 struct r8192_priv *priv = container_of(work, struct r8192_priv,
1840 qos_activate);
1841 struct net_device *dev = priv->ieee80211->dev;
1842 struct ieee80211_qos_parameters *qos_parameters =
1843 &priv->ieee80211->current_network.qos_data.parameters;
1844 u8 mode = priv->ieee80211->current_network.mode;
1845 u32 u1bAIFS;
1846 u32 u4bAcParam;
1847 u32 op_limit;
1848 u32 cw_max;
1849 u32 cw_min;
1850 int i;
1851
1852 mutex_lock(&priv->mutex);
1853 if (priv->ieee80211->state != IEEE80211_LINKED)
1854 goto success;
1855 RT_TRACE(COMP_QOS,
1856 "qos active process with associate response received\n");
1857 /* It better set slot time at first
1858 *
1859 * For we just support b/g mode at present, let the slot time at
1860 * 9/20 selection
1861 *
1862 * update the ac parameter to related registers
1863 */
1864 for (i = 0; i < QOS_QUEUE_NUM; i++) {
1865 /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
1866 u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime;
1867 u1bAIFS <<= AC_PARAM_AIFS_OFFSET;
1868 op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]);
1869 op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET;
1870 cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]);
1871 cw_max <<= AC_PARAM_ECW_MAX_OFFSET;
1872 cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]);
1873 cw_min <<= AC_PARAM_ECW_MIN_OFFSET;
1874 u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS;
1875 write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);
1876 }
1877
1878 success:
1879 mutex_unlock(&priv->mutex);
1880 }
1881
1882 static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
1883 int active_network,
1884 struct ieee80211_network *network)
1885 {
1886 int ret = 0;
1887 u32 size = sizeof(struct ieee80211_qos_parameters);
1888
1889 if (priv->ieee80211->state != IEEE80211_LINKED)
1890 return ret;
1891
1892 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1893 return ret;
1894
1895 if (network->flags & NETWORK_HAS_QOS_MASK) {
1896 if (active_network &&
1897 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
1898 network->qos_data.active = network->qos_data.supported;
1899
1900 if ((network->qos_data.active == 1) && (active_network == 1) &&
1901 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
1902 (network->qos_data.old_param_count !=
1903 network->qos_data.param_count)) {
1904 network->qos_data.old_param_count =
1905 network->qos_data.param_count;
1906 queue_work(priv->priv_wq, &priv->qos_activate);
1907 RT_TRACE(COMP_QOS,
1908 "QoS parameters change call qos_activate\n");
1909 }
1910 } else {
1911 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1912 &def_qos_parameters, size);
1913
1914 if ((network->qos_data.active == 1) && (active_network == 1)) {
1915 queue_work(priv->priv_wq, &priv->qos_activate);
1916 RT_TRACE(COMP_QOS,
1917 "QoS was disabled call qos_activate\n");
1918 }
1919 network->qos_data.active = 0;
1920 network->qos_data.supported = 0;
1921 }
1922
1923 return 0;
1924 }
1925
1926 /* handle and manage frame from beacon and probe response */
1927 static int rtl8192_handle_beacon(struct net_device *dev,
1928 struct ieee80211_beacon *beacon,
1929 struct ieee80211_network *network)
1930 {
1931 struct r8192_priv *priv = ieee80211_priv(dev);
1932
1933 rtl8192_qos_handle_probe_response(priv, 1, network);
1934 queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
1935 return 0;
1936
1937 }
1938
1939 /*
1940 * handling the beaconing responses. if we get different QoS setting
1941 * off the network from the associated setting, adjust the QoS
1942 * setting
1943 */
1944 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
1945 struct ieee80211_network *network)
1946 {
1947 unsigned long flags;
1948 u32 size = sizeof(struct ieee80211_qos_parameters);
1949 int set_qos_param = 0;
1950
1951 if ((priv == NULL) || (network == NULL))
1952 return 0;
1953
1954 if (priv->ieee80211->state != IEEE80211_LINKED)
1955 return 0;
1956
1957 if (priv->ieee80211->iw_mode != IW_MODE_INFRA)
1958 return 0;
1959
1960 spin_lock_irqsave(&priv->ieee80211->lock, flags);
1961 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
1962 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1963 &network->qos_data.parameters,
1964 sizeof(struct ieee80211_qos_parameters));
1965 priv->ieee80211->current_network.qos_data.active = 1;
1966 set_qos_param = 1;
1967 /* update qos parameter for current network */
1968 priv->ieee80211->current_network.qos_data.old_param_count =
1969 priv->ieee80211->current_network.qos_data.param_count;
1970 priv->ieee80211->current_network.qos_data.param_count =
1971 network->qos_data.param_count;
1972 } else {
1973 memcpy(&priv->ieee80211->current_network.qos_data.parameters,
1974 &def_qos_parameters, size);
1975 priv->ieee80211->current_network.qos_data.active = 0;
1976 priv->ieee80211->current_network.qos_data.supported = 0;
1977 set_qos_param = 1;
1978 }
1979
1980 spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
1981
1982 RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__,
1983 network->flags,
1984 priv->ieee80211->current_network.qos_data.active);
1985 if (set_qos_param == 1)
1986 queue_work(priv->priv_wq, &priv->qos_activate);
1987
1988
1989 return 0;
1990 }
1991
1992
1993 static int rtl8192_handle_assoc_response(
1994 struct net_device *dev,
1995 struct ieee80211_assoc_response_frame *resp,
1996 struct ieee80211_network *network)
1997 {
1998 struct r8192_priv *priv = ieee80211_priv(dev);
1999
2000 rtl8192_qos_association_resp(priv, network);
2001 return 0;
2002 }
2003
2004
2005 static void rtl8192_update_ratr_table(struct net_device *dev)
2006 {
2007 struct r8192_priv *priv = ieee80211_priv(dev);
2008 struct ieee80211_device *ieee = priv->ieee80211;
2009 u8 *pMcsRate = ieee->dot11HTOperationalRateSet;
2010 u32 ratr_value = 0;
2011 u8 rate_index = 0;
2012
2013 rtl8192_config_rate(dev, (u16 *)(&ratr_value));
2014 ratr_value |= (*(u16 *)(pMcsRate)) << 12;
2015 switch (ieee->mode) {
2016 case IEEE_A:
2017 ratr_value &= 0x00000FF0;
2018 break;
2019 case IEEE_B:
2020 ratr_value &= 0x0000000F;
2021 break;
2022 case IEEE_G:
2023 ratr_value &= 0x00000FF7;
2024 break;
2025 case IEEE_N_24G:
2026 case IEEE_N_5G:
2027 if (ieee->pHTInfo->PeerMimoPs == 0) { /* MIMO_PS_STATIC */
2028 ratr_value &= 0x0007F007;
2029 } else {
2030 if (priv->rf_type == RF_1T2R)
2031 ratr_value &= 0x000FF007;
2032 else
2033 ratr_value &= 0x0F81F007;
2034 }
2035 break;
2036 default:
2037 break;
2038 }
2039 ratr_value &= 0x0FFFFFFF;
2040 if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz)
2041 ratr_value |= 0x80000000;
2042 else if (!ieee->pHTInfo->bCurTxBW40MHz &&
2043 ieee->pHTInfo->bCurShortGI20MHz)
2044 ratr_value |= 0x80000000;
2045 write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value);
2046 write_nic_byte(dev, UFWP, 1);
2047 }
2048
2049 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
2050 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
2051 static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
2052 {
2053 struct r8192_priv *priv = ieee80211_priv(dev);
2054 struct ieee80211_device *ieee = priv->ieee80211;
2055 struct ieee80211_network *network = &ieee->current_network;
2056 int wpa_ie_len = ieee->wpa_ie_len;
2057 struct ieee80211_crypt_data *crypt;
2058 int encrypt;
2059
2060 crypt = ieee->crypt[ieee->tx_keyidx];
2061 /* we use connecting AP's capability instead of only security config
2062 * on our driver to distinguish whether it should use N mode or G mode
2063 */
2064 encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) ||
2065 (ieee->host_encrypt && crypt && crypt->ops &&
2066 (0 == strcmp(crypt->ops->name, "WEP")));
2067
2068 /* simply judge */
2069 if (encrypt && (wpa_ie_len == 0)) {
2070 /* wep encryption, no N mode setting */
2071 return false;
2072 } else if ((wpa_ie_len != 0)) {
2073 /* parse pairwise key type */
2074 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))))
2075 return true;
2076 else
2077 return false;
2078 } else {
2079 return true;
2080 }
2081
2082 return true;
2083 }
2084
2085 static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev)
2086 {
2087 struct r8192_priv *priv = ieee80211_priv(dev);
2088
2089 return priv->ieee80211->bHalfWirelessN24GMode;
2090 }
2091
2092 static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
2093 {
2094 struct ieee80211_device *ieee = priv->ieee80211;
2095 /* We do not consider set support rate for ABG mode, only
2096 * HT MCS rate is set here.
2097 */
2098 if (ieee->mode == WIRELESS_MODE_N_24G ||
2099 ieee->mode == WIRELESS_MODE_N_5G)
2100 memcpy(ieee->Regdot11HTOperationalRateSet,
2101 ieee->RegHTSuppRateSet, 16);
2102 else
2103 memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
2104 }
2105
2106 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
2107 {
2108 struct r8192_priv *priv = ieee80211_priv(dev);
2109 u8 ret = 0;
2110
2111 switch (priv->rf_chip) {
2112 case RF_8225:
2113 case RF_8256:
2114 case RF_PSEUDO_11N:
2115 ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B;
2116 break;
2117 case RF_8258:
2118 ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G;
2119 break;
2120 default:
2121 ret = WIRELESS_MODE_B;
2122 break;
2123 }
2124 return ret;
2125 }
2126 static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
2127 {
2128 struct r8192_priv *priv = ieee80211_priv(dev);
2129 u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev);
2130
2131 if (wireless_mode == WIRELESS_MODE_AUTO ||
2132 (wireless_mode & bSupportMode) == 0) {
2133 if (bSupportMode & WIRELESS_MODE_N_24G) {
2134 wireless_mode = WIRELESS_MODE_N_24G;
2135 } else if (bSupportMode & WIRELESS_MODE_N_5G) {
2136 wireless_mode = WIRELESS_MODE_N_5G;
2137 } else if ((bSupportMode & WIRELESS_MODE_A)) {
2138 wireless_mode = WIRELESS_MODE_A;
2139 } else if ((bSupportMode & WIRELESS_MODE_G)) {
2140 wireless_mode = WIRELESS_MODE_G;
2141 } else if ((bSupportMode & WIRELESS_MODE_B)) {
2142 wireless_mode = WIRELESS_MODE_B;
2143 } else {
2144 RT_TRACE(COMP_ERR,
2145 "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n",
2146 __func__, bSupportMode);
2147 wireless_mode = WIRELESS_MODE_B;
2148 }
2149 }
2150 #ifdef TO_DO_LIST
2151 /* TODO: this function doesn't work well at this time,
2152 * we should wait for FPGA
2153 */
2154 ActUpdateChannelAccessSetting(
2155 pAdapter, pHalData->CurrentWirelessMode,
2156 &pAdapter->MgntInfo.Info8185.ChannelAccessSetting);
2157 #endif
2158 priv->ieee80211->mode = wireless_mode;
2159
2160 if (wireless_mode == WIRELESS_MODE_N_24G ||
2161 wireless_mode == WIRELESS_MODE_N_5G)
2162 priv->ieee80211->pHTInfo->bEnableHT = 1;
2163 else
2164 priv->ieee80211->pHTInfo->bEnableHT = 0;
2165 RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
2166 rtl8192_refresh_supportrate(priv);
2167
2168 }
2169 /* init priv variables here. only non_zero value should be initialized here. */
2170 static void rtl8192_init_priv_variable(struct net_device *dev)
2171 {
2172 struct r8192_priv *priv = ieee80211_priv(dev);
2173 u8 i;
2174
2175 priv->card_8192 = NIC_8192U;
2176 priv->chan = 1; /* set to channel 1 */
2177 priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */
2178 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2179 priv->ieee80211->ieee_up = 0;
2180 priv->retry_rts = DEFAULT_RETRY_RTS;
2181 priv->retry_data = DEFAULT_RETRY_DATA;
2182 priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
2183 priv->ieee80211->rate = 110; /* 11 mbps */
2184 priv->ieee80211->short_slot = 1;
2185 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2186 priv->CckPwEnl = 6;
2187 /* for silent reset */
2188 priv->IrpPendingCount = 1;
2189 priv->ResetProgress = RESET_TYPE_NORESET;
2190 priv->bForcedSilentReset = false;
2191 priv->bDisableNormalResetCheck = false;
2192 priv->force_reset = false;
2193
2194 /* we don't use FW read/write RF until stable firmware is available. */
2195 priv->ieee80211->FwRWRF = 0;
2196 priv->ieee80211->current_network.beacon_interval =
2197 DEFAULT_BEACONINTERVAL;
2198 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2199 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2200 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE |
2201 IEEE_SOFTMAC_BEACONS;
2202
2203 priv->ieee80211->active_scan = 1;
2204 priv->ieee80211->modulation =
2205 IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
2206 priv->ieee80211->host_encrypt = 1;
2207 priv->ieee80211->host_decrypt = 1;
2208 priv->ieee80211->start_send_beacons = NULL;
2209 priv->ieee80211->stop_send_beacons = NULL;
2210 priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
2211 priv->ieee80211->set_chan = rtl8192_set_chan;
2212 priv->ieee80211->link_change = rtl8192_link_change;
2213 priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
2214 priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
2215 priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
2216 priv->ieee80211->init_wmmparam_flag = 0;
2217 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2218 priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
2219 priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES;
2220 priv->ieee80211->qos_support = 1;
2221
2222 priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
2223 priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
2224 priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
2225
2226 priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192;
2227 priv->ieee80211->GetHalfNmodeSupportByAPsHandler =
2228 GetHalfNmodeSupportByAPs819xUsb;
2229 priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
2230
2231 priv->ieee80211->InitialGainHandler = InitialGain819xUsb;
2232 priv->card_type = USB;
2233 #ifdef TO_DO_LIST
2234 if (Adapter->bInHctTest) {
2235 pHalData->ShortRetryLimit = 7;
2236 pHalData->LongRetryLimit = 7;
2237 }
2238 #endif
2239 priv->ShortRetryLimit = 0x30;
2240 priv->LongRetryLimit = 0x30;
2241 priv->EarlyRxThreshold = 7;
2242 priv->enable_gpio0 = 0;
2243 priv->TransmitConfig =
2244 /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */
2245 (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) |
2246 /* Short retry limit */
2247 (priv->ShortRetryLimit << TCR_SRL_OFFSET) |
2248 /* Long retry limit */
2249 (priv->LongRetryLimit << TCR_LRL_OFFSET) |
2250 /* FALSE: HW provides PLCP length and LENGEXT
2251 * TRUE: SW provides them
2252 */
2253 (false ? TCR_SAT : 0);
2254 #ifdef TO_DO_LIST
2255 if (Adapter->bInHctTest)
2256 pHalData->ReceiveConfig =
2257 pHalData->CSMethod |
2258 /* accept management/data */
2259 RCR_AMF | RCR_ADF |
2260 /* accept control frame for SW
2261 * AP needs PS-poll
2262 */
2263 RCR_ACF |
2264 /* accept BC/MC/UC */
2265 RCR_AB | RCR_AM | RCR_APM |
2266 /* accept ICV/CRC error
2267 * packet
2268 */
2269 RCR_AICV | RCR_ACRC32 |
2270 /* Max DMA Burst Size per Tx
2271 * DMA Burst, 7: unlimited.
2272 */
2273 ((u32)7 << RCR_MXDMA_OFFSET) |
2274 /* Rx FIFO Threshold,
2275 * 7: No Rx threshold.
2276 */
2277 (pHalData->EarlyRxThreshold << RCR_FIFO_OFFSET) |
2278 (pHalData->EarlyRxThreshold == 7 ? RCR_OnlyErlPkt : 0);
2279 else
2280
2281 #endif
2282 priv->ReceiveConfig =
2283 /* accept management/data */
2284 RCR_AMF | RCR_ADF |
2285 /* accept control frame for SW AP needs PS-poll */
2286 RCR_ACF |
2287 /* accept BC/MC/UC */
2288 RCR_AB | RCR_AM | RCR_APM |
2289 /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */
2290 ((u32)7 << RCR_MXDMA_OFFSET) |
2291 /* Rx FIFO Threshold, 7: No Rx threshold. */
2292 (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) |
2293 (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0);
2294
2295 priv->AcmControl = 0;
2296 priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
2297
2298 /* rx related queue */
2299 skb_queue_head_init(&priv->rx_queue);
2300 skb_queue_head_init(&priv->skb_queue);
2301
2302 /* Tx related queue */
2303 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2304 skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]);
2305 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2306 skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]);
2307 for (i = 0; i < MAX_QUEUE_SIZE; i++)
2308 skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]);
2309 priv->rf_set_chan = rtl8192_phy_SwChnl;
2310 }
2311
2312 /* init lock here */
2313 static void rtl8192_init_priv_lock(struct r8192_priv *priv)
2314 {
2315 spin_lock_init(&priv->tx_lock);
2316 spin_lock_init(&priv->irq_lock);
2317 sema_init(&priv->wx_sem, 1);
2318 sema_init(&priv->rf_sem, 1);
2319 mutex_init(&priv->mutex);
2320 }
2321
2322 static void rtl819x_watchdog_wqcallback(struct work_struct *work);
2323
2324 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
2325 /* init tasklet and wait_queue here. only 2.6 above kernel is considered */
2326 #define DRV_NAME "wlan0"
2327 static void rtl8192_init_priv_task(struct net_device *dev)
2328 {
2329 struct r8192_priv *priv = ieee80211_priv(dev);
2330
2331 priv->priv_wq = create_workqueue(DRV_NAME);
2332
2333 INIT_WORK(&priv->reset_wq, rtl8192_restart);
2334
2335 INIT_DELAYED_WORK(&priv->watch_dog_wq,
2336 rtl819x_watchdog_wqcallback);
2337 INIT_DELAYED_WORK(&priv->txpower_tracking_wq,
2338 dm_txpower_trackingcallback);
2339 INIT_DELAYED_WORK(&priv->rfpath_check_wq,
2340 dm_rf_pathcheck_workitemcallback);
2341 INIT_DELAYED_WORK(&priv->update_beacon_wq,
2342 rtl8192_update_beacon);
2343 INIT_DELAYED_WORK(&priv->initialgain_operate_wq,
2344 InitialGainOperateWorkItemCallBack);
2345 INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
2346
2347 tasklet_init(&priv->irq_rx_tasklet,
2348 (void(*)(unsigned long))rtl8192_irq_rx_tasklet,
2349 (unsigned long)priv);
2350 }
2351
2352 static void rtl8192_get_eeprom_size(struct net_device *dev)
2353 {
2354 u16 curCR = 0;
2355 struct r8192_priv *priv = ieee80211_priv(dev);
2356
2357 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2358 read_nic_word_E(dev, EPROM_CMD, &curCR);
2359 RT_TRACE(COMP_EPROM,
2360 "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR);
2361 /* whether need I consider BIT5? */
2362 priv->epromtype =
2363 (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46;
2364 RT_TRACE(COMP_EPROM,
2365 "<===========%s(), epromtype:%d\n", __func__, priv->epromtype);
2366 }
2367
2368 /* used to swap endian. as ntohl & htonl are not necessary
2369 * to swap endian, so use this instead.
2370 */
2371 static inline u16 endian_swap(u16 *data)
2372 {
2373 u16 tmp = *data;
2374 *data = (tmp >> 8) | (tmp << 8);
2375 return *data;
2376 }
2377 static void rtl8192_read_eeprom_info(struct net_device *dev)
2378 {
2379 u16 wEPROM_ID = 0;
2380 u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02};
2381 u8 bLoad_From_EEPOM = false;
2382 struct r8192_priv *priv = ieee80211_priv(dev);
2383 u16 tmpValue = 0;
2384 int i;
2385
2386 RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__);
2387 wEPROM_ID = eprom_read(dev, 0); /* first read EEPROM ID out; */
2388 RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID);
2389
2390 if (wEPROM_ID != RTL8190_EEPROM_ID)
2391 RT_TRACE(COMP_ERR,
2392 "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n",
2393 wEPROM_ID, RTL8190_EEPROM_ID);
2394 else
2395 bLoad_From_EEPOM = true;
2396
2397 if (bLoad_From_EEPOM) {
2398 tmpValue = eprom_read(dev, EEPROM_VID >> 1);
2399 priv->eeprom_vid = endian_swap(&tmpValue);
2400 priv->eeprom_pid = eprom_read(dev, EEPROM_PID >> 1);
2401 tmpValue = eprom_read(dev, EEPROM_ChannelPlan >> 1);
2402 priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8;
2403 priv->btxpowerdata_readfromEEPORM = true;
2404 priv->eeprom_CustomerID =
2405 eprom_read(dev, (EEPROM_Customer_ID >> 1)) >> 8;
2406 } else {
2407 priv->eeprom_vid = 0;
2408 priv->eeprom_pid = 0;
2409 priv->card_8192_version = VERSION_819xU_B;
2410 priv->eeprom_ChannelPlan = 0;
2411 priv->eeprom_CustomerID = 0;
2412 }
2413 RT_TRACE(COMP_EPROM,
2414 "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n",
2415 priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID,
2416 priv->eeprom_ChannelPlan);
2417 /* set channelplan from eeprom */
2418 priv->ChannelPlan = priv->eeprom_ChannelPlan;
2419 if (bLoad_From_EEPOM) {
2420 int i;
2421
2422 for (i = 0; i < 6; i += 2) {
2423 u16 tmp = 0;
2424
2425 tmp = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
2426 *(u16 *)(&dev->dev_addr[i]) = tmp;
2427 }
2428 } else {
2429 memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
2430 /* should I set IDR0 here? */
2431 }
2432 RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr);
2433 priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */
2434 priv->rf_chip = RF_8256;
2435
2436 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2437 /* read Tx power gain offset of legacy OFDM to HT rate */
2438 if (bLoad_From_EEPOM)
2439 priv->EEPROMTxPowerDiff = (eprom_read(dev, (EEPROM_TxPowerDiff >> 1)) & 0xff00) >> 8;
2440 else
2441 priv->EEPROMTxPowerDiff = EEPROM_Default_TxPower;
2442 RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff);
2443 /* read ThermalMeter from EEPROM */
2444 if (bLoad_From_EEPOM)
2445 priv->EEPROMThermalMeter = (u8)(eprom_read(dev, (EEPROM_ThermalMeter >> 1)) & 0x00ff);
2446 else
2447 priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
2448 RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter);
2449 /* for tx power track */
2450 priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100;
2451 /* read antenna tx power offset of B/C/D to A from EEPROM */
2452 if (bLoad_From_EEPOM)
2453 priv->EEPROMPwDiff = (eprom_read(dev, (EEPROM_PwDiff >> 1)) & 0x0f00) >> 8;
2454 else
2455 priv->EEPROMPwDiff = EEPROM_Default_PwDiff;
2456 RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff);
2457 /* Read CrystalCap from EEPROM */
2458 if (bLoad_From_EEPOM)
2459 priv->EEPROMCrystalCap = (eprom_read(dev, (EEPROM_CrystalCap >> 1)) & 0x0f);
2460 else
2461 priv->EEPROMCrystalCap = EEPROM_Default_CrystalCap;
2462 RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap);
2463 /* get per-channel Tx power level */
2464 if (bLoad_From_EEPOM)
2465 priv->EEPROM_Def_Ver = (eprom_read(dev, (EEPROM_TxPwIndex_Ver >> 1)) & 0xff00) >> 8;
2466 else
2467 priv->EEPROM_Def_Ver = 1;
2468 RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver);
2469 if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */
2470 int i;
2471
2472 if (bLoad_From_EEPOM)
2473 priv->EEPROMTxPowerLevelCCK = (eprom_read(dev, (EEPROM_TxPwIndex_CCK >> 1)) & 0xff) >> 8;
2474 else
2475 priv->EEPROMTxPowerLevelCCK = 0x10;
2476 RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK);
2477 for (i = 0; i < 3; i++) {
2478 if (bLoad_From_EEPOM) {
2479 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G + i) >> 1);
2480 if (((EEPROM_TxPwIndex_OFDM_24G + i) % 2) == 0)
2481 tmpValue = tmpValue & 0x00ff;
2482 else
2483 tmpValue = (tmpValue & 0xff00) >> 8;
2484 } else {
2485 tmpValue = 0x10;
2486 }
2487 priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue;
2488 RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK);
2489 }
2490 } else if (priv->EEPROM_Def_Ver == 1) {
2491 if (bLoad_From_EEPOM) {
2492 tmpValue = eprom_read(dev,
2493 EEPROM_TxPwIndex_CCK_V1 >> 1);
2494 tmpValue = (tmpValue & 0xff00) >> 8;
2495 } else {
2496 tmpValue = 0x10;
2497 }
2498 priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue;
2499
2500 if (bLoad_From_EEPOM)
2501 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1 + 2) >> 1);
2502 else
2503 tmpValue = 0x1010;
2504 *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
2505 if (bLoad_From_EEPOM)
2506 tmpValue = eprom_read(dev,
2507 EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
2508 else
2509 tmpValue = 0x1010;
2510 *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
2511 if (bLoad_From_EEPOM)
2512 tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1 + 2) >> 1);
2513 else
2514 tmpValue = 0x10;
2515 priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue;
2516 } /* endif EEPROM_Def_Ver == 1 */
2517
2518 /* update HAL variables */
2519 for (i = 0; i < 14; i++) {
2520 if (i <= 3)
2521 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0];
2522 else if (i >= 4 && i <= 9)
2523 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1];
2524 else
2525 priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2];
2526 }
2527
2528 for (i = 0; i < 14; i++) {
2529 if (priv->EEPROM_Def_Ver == 0) {
2530 if (i <= 3)
2531 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2532 else if (i >= 4 && i <= 9)
2533 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK;
2534 else
2535 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]);
2536 } else if (priv->EEPROM_Def_Ver == 1) {
2537 if (i <= 3)
2538 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0];
2539 else if (i >= 4 && i <= 9)
2540 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1];
2541 else
2542 priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2];
2543 }
2544 }
2545 priv->TxPowerDiff = priv->EEPROMPwDiff;
2546 /* Antenna B gain offset to antenna A, bit0~3 */
2547 priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
2548 /* Antenna C gain offset to antenna A, bit4~7 */
2549 priv->AntennaTxPwDiff[1] =
2550 (priv->EEPROMTxPowerDiff & 0xf0) >> 4;
2551 /* CrystalCap, bit12~15 */
2552 priv->CrystalCap = priv->EEPROMCrystalCap;
2553 /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
2554 * 92U does not enable TX power tracking.
2555 */
2556 priv->ThermalMeter[0] = priv->EEPROMThermalMeter;
2557 } /* end if VersionID == VERSION_819xU_A */
2558
2559 /* for dlink led */
2560 switch (priv->eeprom_CustomerID) {
2561 case EEPROM_CID_RUNTOP:
2562 priv->CustomerID = RT_CID_819x_RUNTOP;
2563 break;
2564
2565 case EEPROM_CID_DLINK:
2566 priv->CustomerID = RT_CID_DLINK;
2567 break;
2568
2569 default:
2570 priv->CustomerID = RT_CID_DEFAULT;
2571 break;
2572
2573 }
2574
2575 switch (priv->CustomerID) {
2576 case RT_CID_819x_RUNTOP:
2577 priv->LedStrategy = SW_LED_MODE2;
2578 break;
2579
2580 case RT_CID_DLINK:
2581 priv->LedStrategy = SW_LED_MODE4;
2582 break;
2583
2584 default:
2585 priv->LedStrategy = SW_LED_MODE0;
2586 break;
2587
2588 }
2589
2590
2591 if (priv->rf_type == RF_1T2R)
2592 RT_TRACE(COMP_EPROM, "\n1T2R config\n");
2593 else
2594 RT_TRACE(COMP_EPROM, "\n2T4R config\n");
2595
2596 /* We can only know RF type in the function. So we have to init
2597 * DIG RATR table again.
2598 */
2599 init_rate_adaptive(dev);
2600
2601 RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
2602 }
2603
2604 static short rtl8192_get_channel_map(struct net_device *dev)
2605 {
2606 struct r8192_priv *priv = ieee80211_priv(dev);
2607
2608 if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2609 netdev_err(dev,
2610 "rtl8180_init: Error channel plan! Set to default.\n");
2611 priv->ChannelPlan = 0;
2612 }
2613 RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
2614
2615 rtl819x_set_channel_map(priv->ChannelPlan, priv);
2616 return 0;
2617 }
2618
2619 static short rtl8192_init(struct net_device *dev)
2620 {
2621
2622 struct r8192_priv *priv = ieee80211_priv(dev);
2623
2624 memset(&(priv->stats), 0, sizeof(struct Stats));
2625 memset(priv->txqueue_to_outpipemap, 0, 9);
2626 #ifdef PIPE12
2627 {
2628 int i = 0;
2629 u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5};
2630
2631 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2632 }
2633 #else
2634 {
2635 u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4};
2636
2637 memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9);
2638 }
2639 #endif
2640 rtl8192_init_priv_variable(dev);
2641 rtl8192_init_priv_lock(priv);
2642 rtl8192_init_priv_task(dev);
2643 rtl8192_get_eeprom_size(dev);
2644 rtl8192_read_eeprom_info(dev);
2645 rtl8192_get_channel_map(dev);
2646 init_hal_dm(dev);
2647 setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
2648 (unsigned long)dev);
2649 if (rtl8192_usb_initendpoints(dev) != 0) {
2650 DMESG("Endopoints initialization failed");
2651 return -ENOMEM;
2652 }
2653
2654 return 0;
2655 }
2656
2657 /******************************************************************************
2658 *function: This function actually only set RRSR, RATR and BW_OPMODE registers
2659 * not to do all the hw config as its name says
2660 * input: net_device dev
2661 * output: none
2662 * return: none
2663 * notice: This part need to modified according to the rate set we filtered
2664 * ****************************************************************************/
2665 static void rtl8192_hwconfig(struct net_device *dev)
2666 {
2667 u32 regRATR = 0, regRRSR = 0;
2668 u8 regBwOpMode = 0, regTmp = 0;
2669 struct r8192_priv *priv = ieee80211_priv(dev);
2670 u32 ratr_value = 0;
2671
2672 /* Set RRSR, RATR, and BW_OPMODE registers */
2673 switch (priv->ieee80211->mode) {
2674 case WIRELESS_MODE_B:
2675 regBwOpMode = BW_OPMODE_20MHZ;
2676 regRATR = RATE_ALL_CCK;
2677 regRRSR = RATE_ALL_CCK;
2678 break;
2679 case WIRELESS_MODE_A:
2680 regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ;
2681 regRATR = RATE_ALL_OFDM_AG;
2682 regRRSR = RATE_ALL_OFDM_AG;
2683 break;
2684 case WIRELESS_MODE_G:
2685 regBwOpMode = BW_OPMODE_20MHZ;
2686 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2687 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2688 break;
2689 case WIRELESS_MODE_AUTO:
2690 #ifdef TO_DO_LIST
2691 if (Adapter->bInHctTest) {
2692 regBwOpMode = BW_OPMODE_20MHZ;
2693 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2694 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2695 } else
2696 #endif
2697 {
2698 regBwOpMode = BW_OPMODE_20MHZ;
2699 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2700 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2701 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2702 }
2703 break;
2704 case WIRELESS_MODE_N_24G:
2705 /* It support CCK rate by default. CCK rate will be filtered
2706 * out only when associated AP does not support it.
2707 */
2708 regBwOpMode = BW_OPMODE_20MHZ;
2709 regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG |
2710 RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
2711 regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
2712 break;
2713 case WIRELESS_MODE_N_5G:
2714 regBwOpMode = BW_OPMODE_5G;
2715 regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS |
2716 RATE_ALL_OFDM_2SS;
2717 regRRSR = RATE_ALL_OFDM_AG;
2718 break;
2719 }
2720
2721 write_nic_byte(dev, BW_OPMODE, regBwOpMode);
2722 ratr_value = regRATR;
2723 if (priv->rf_type == RF_1T2R)
2724 ratr_value &= ~(RATE_ALL_OFDM_2SS);
2725 write_nic_dword(dev, RATR0, ratr_value);
2726 write_nic_byte(dev, UFWP, 1);
2727 read_nic_byte(dev, 0x313, &regTmp);
2728 regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
2729 write_nic_dword(dev, RRSR, regRRSR);
2730
2731 /* Set Retry Limit here */
2732 write_nic_word(dev, RETRY_LIMIT,
2733 priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
2734 priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
2735 /* Set Contention Window here */
2736
2737 /* Set Tx AGC */
2738
2739 /* Set Tx Antenna including Feedback control */
2740
2741 /* Set Auto Rate fallback control */
2742
2743
2744 }
2745
2746
2747 /* InitializeAdapter and PhyCfg */
2748 static bool rtl8192_adapter_start(struct net_device *dev)
2749 {
2750 struct r8192_priv *priv = ieee80211_priv(dev);
2751 u32 dwRegRead = 0;
2752 bool init_status = true;
2753 u8 SECR_value = 0x0;
2754 u8 tmp;
2755
2756 RT_TRACE(COMP_INIT, "====>%s()\n", __func__);
2757 priv->Rf_Mode = RF_OP_By_SW_3wire;
2758 /* for ASIC power on sequence */
2759 write_nic_byte_E(dev, 0x5f, 0x80);
2760 mdelay(50);
2761 write_nic_byte_E(dev, 0x5f, 0xf0);
2762 write_nic_byte_E(dev, 0x5d, 0x00);
2763 write_nic_byte_E(dev, 0x5e, 0x80);
2764 write_nic_byte(dev, 0x17, 0x37);
2765 mdelay(10);
2766 priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
2767 /* config CPUReset Register */
2768 /* Firmware Reset or not? */
2769 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2770 if (priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
2771 dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */
2772 else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
2773 dwRegRead |= CPU_GEN_FIRMWARE_RESET;
2774 else
2775 RT_TRACE(COMP_ERR,
2776 "ERROR in %s(): undefined firmware state(%d)\n",
2777 __func__, priv->pFirmware->firmware_status);
2778
2779 write_nic_dword(dev, CPU_GEN, dwRegRead);
2780 /* config BB. */
2781 rtl8192_BBConfig(dev);
2782
2783 /* Loopback mode or not */
2784 priv->LoopbackMode = RTL819xU_NO_LOOPBACK;
2785
2786 read_nic_dword(dev, CPU_GEN, &dwRegRead);
2787 if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
2788 dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) |
2789 CPU_GEN_NO_LOOPBACK_SET;
2790 else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
2791 dwRegRead |= CPU_CCK_LOOPBACK;
2792 else
2793 RT_TRACE(COMP_ERR,
2794 "Serious error in %s(): wrong loopback mode setting(%d)\n",
2795 __func__, priv->LoopbackMode);
2796
2797 write_nic_dword(dev, CPU_GEN, dwRegRead);
2798
2799 /* after reset cpu, we need wait for a seconds to write in register. */
2800 udelay(500);
2801
2802 /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */
2803 read_nic_byte_E(dev, 0x5f, &tmp);
2804 write_nic_byte_E(dev, 0x5f, tmp | 0x20);
2805
2806 /* Set Hardware */
2807 rtl8192_hwconfig(dev);
2808
2809 /* turn on Tx/Rx */
2810 write_nic_byte(dev, CMDR, CR_RE | CR_TE);
2811
2812 /* set IDR0 here */
2813 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
2814 write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]);
2815
2816 /* set RCR */
2817 write_nic_dword(dev, RCR, priv->ReceiveConfig);
2818
2819 /* Initialize Number of Reserved Pages in Firmware Queue */
2820 write_nic_dword(dev, RQPN1,
2821 NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
2822 NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
2823 NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
2824 NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT);
2825 write_nic_dword(dev, RQPN2,
2826 NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT |
2827 NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT);
2828 write_nic_dword(dev, RQPN3,
2829 APPLIED_RESERVED_QUEUE_IN_FW |
2830 NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT);
2831 write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
2832
2833 /* Set AckTimeout */
2834 /* TODO: (it value is only for FPGA version). need to be changed!! */
2835 write_nic_byte(dev, ACK_TIMEOUT, 0x30);
2836
2837 if (priv->ResetProgress == RESET_TYPE_NORESET)
2838 rtl8192_SetWirelessMode(dev, priv->ieee80211->mode);
2839 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2840 CamResetAllEntry(dev);
2841 SECR_value |= SCR_TxEncEnable;
2842 SECR_value |= SCR_RxDecEnable;
2843 SECR_value |= SCR_NoSKMC;
2844 write_nic_byte(dev, SECR, SECR_value);
2845 }
2846
2847 /* Beacon related */
2848 write_nic_word(dev, ATIMWND, 2);
2849 write_nic_word(dev, BCN_INTERVAL, 100);
2850
2851 #define DEFAULT_EDCA 0x005e4332
2852 {
2853 int i;
2854
2855 for (i = 0; i < QOS_QUEUE_NUM; i++)
2856 write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA);
2857 }
2858
2859 rtl8192_phy_configmac(dev);
2860
2861 if (priv->card_8192_version == (u8)VERSION_819xU_A) {
2862 rtl8192_phy_getTxPower(dev);
2863 rtl8192_phy_setTxPower(dev, priv->chan);
2864 }
2865
2866 /* Firmware download */
2867 init_status = init_firmware(dev);
2868 if (!init_status) {
2869 RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n",
2870 __func__);
2871 return init_status;
2872 }
2873 RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__);
2874
2875 #ifdef TO_DO_LIST
2876 if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
2877 if (pMgntInfo->RegRfOff) { /* User disable RF via registry. */
2878 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2879 ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
2880 MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
2881 /* Those actions will be discard in MgntActSet_RF_State
2882 * because of the same state
2883 */
2884 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2885 PHY_SetRFReg(Adapter,
2886 (RF90_RADIO_PATH_E)eRFPath,
2887 0x4, 0xC00, 0x0);
2888 } else if (pMgntInfo->RfOffReason > RF_CHANGE_BY_PS) {
2889 /* H/W or S/W RF OFF before sleep. */
2890 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2891 ("InitializeAdapter819xUsb(): Turn off RF for RfOffReason(%d) ----------\n",
2892 pMgntInfo->RfOffReason));
2893 MgntActSet_RF_State(Adapter,
2894 eRfOff,
2895 pMgntInfo->RfOffReason);
2896 } else {
2897 pHalData->eRFPowerState = eRfOn;
2898 pMgntInfo->RfOffReason = 0;
2899 RT_TRACE((COMP_INIT | COMP_RF), DBG_LOUD,
2900 ("InitializeAdapter819xUsb(): RF is on ----------\n"));
2901 }
2902 } else {
2903 if (pHalData->eRFPowerState == eRfOff) {
2904 MgntActSet_RF_State(Adapter,
2905 eRfOff,
2906 pMgntInfo->RfOffReason);
2907 /* Those actions will be discard in MgntActSet_RF_State
2908 * because of the same state
2909 */
2910 for (eRFPath = 0; eRFPath < pHalData->NumTotalRFPath; eRFPath++)
2911 PHY_SetRFReg(Adapter,
2912 (RF90_RADIO_PATH_E)eRFPath,
2913 0x4, 0xC00, 0x0);
2914 }
2915 }
2916 #endif
2917 /* config RF. */
2918 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2919 rtl8192_phy_RFConfig(dev);
2920 RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__);
2921 }
2922
2923
2924 if (priv->ieee80211->FwRWRF)
2925 /* We can force firmware to do RF-R/W */
2926 priv->Rf_Mode = RF_OP_By_FW;
2927 else
2928 priv->Rf_Mode = RF_OP_By_SW_3wire;
2929
2930
2931 rtl8192_phy_updateInitGain(dev);
2932 /*--set CCK and OFDM Block "ON"--*/
2933 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1);
2934 rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1);
2935
2936 if (priv->ResetProgress == RESET_TYPE_NORESET) {
2937 /* if D or C cut */
2938 u8 tmpvalue;
2939
2940 read_nic_byte(dev, 0x301, &tmpvalue);
2941 if (tmpvalue == 0x03) {
2942 priv->bDcut = true;
2943 RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
2944 } else {
2945 priv->bDcut = false;
2946 RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
2947 }
2948 dm_initialize_txpower_tracking(dev);
2949
2950 if (priv->bDcut) {
2951 u32 i, TempCCk;
2952 u32 tmpRegA = rtl8192_QueryBBReg(dev,
2953 rOFDM0_XATxIQImbalance,
2954 bMaskDWord);
2955
2956 for (i = 0; i < TxBBGainTableLength; i++) {
2957 if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) {
2958 priv->rfa_txpowertrackingindex = (u8)i;
2959 priv->rfa_txpowertrackingindex_real =
2960 (u8)i;
2961 priv->rfa_txpowertracking_default =
2962 priv->rfa_txpowertrackingindex;
2963 break;
2964 }
2965 }
2966
2967 TempCCk = rtl8192_QueryBBReg(dev,
2968 rCCK0_TxFilter1,
2969 bMaskByte2);
2970
2971 for (i = 0; i < CCKTxBBGainTableLength; i++) {
2972
2973 if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) {
2974 priv->cck_present_attentuation_20Mdefault = (u8)i;
2975 break;
2976 }
2977 }
2978 priv->cck_present_attentuation_40Mdefault = 0;
2979 priv->cck_present_attentuation_difference = 0;
2980 priv->cck_present_attentuation =
2981 priv->cck_present_attentuation_20Mdefault;
2982
2983 }
2984 }
2985 write_nic_byte(dev, 0x87, 0x0);
2986
2987
2988 return init_status;
2989 }
2990
2991 /* this configures registers for beacon tx and enables it via
2992 * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
2993 * be used to stop beacon transmission
2994 */
2995 /***************************************************************************
2996 -------------------------------NET STUFF---------------------------
2997 ***************************************************************************/
2998
2999 static struct net_device_stats *rtl8192_stats(struct net_device *dev)
3000 {
3001 struct r8192_priv *priv = ieee80211_priv(dev);
3002
3003 return &priv->ieee80211->stats;
3004 }
3005
3006 static bool HalTxCheckStuck819xUsb(struct net_device *dev)
3007 {
3008 struct r8192_priv *priv = ieee80211_priv(dev);
3009 u16 RegTxCounter;
3010 bool bStuck = false;
3011
3012 read_nic_word(dev, 0x128, &RegTxCounter);
3013 RT_TRACE(COMP_RESET,
3014 "%s():RegTxCounter is %d,TxCounter is %d\n", __func__,
3015 RegTxCounter, priv->TxCounter);
3016 if (priv->TxCounter == RegTxCounter)
3017 bStuck = true;
3018
3019 priv->TxCounter = RegTxCounter;
3020
3021 return bStuck;
3022 }
3023
3024 /*
3025 * <Assumption: RT_TX_SPINLOCK is acquired.>
3026 * First added: 2006.11.19 by emily
3027 */
3028 static RESET_TYPE TxCheckStuck(struct net_device *dev)
3029 {
3030 struct r8192_priv *priv = ieee80211_priv(dev);
3031 u8 QueueID;
3032 bool bCheckFwTxCnt = false;
3033
3034 /* Decide such threshold according to current power save mode */
3035
3036 for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
3037 if (QueueID == TXCMD_QUEUE)
3038 continue;
3039 if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
3040 continue;
3041
3042 bCheckFwTxCnt = true;
3043 }
3044 if (bCheckFwTxCnt) {
3045 if (HalTxCheckStuck819xUsb(dev)) {
3046 RT_TRACE(COMP_RESET,
3047 "TxCheckStuck(): Fw indicates no Tx condition!\n");
3048 return RESET_TYPE_SILENT;
3049 }
3050 }
3051 return RESET_TYPE_NORESET;
3052 }
3053
3054 static bool HalRxCheckStuck819xUsb(struct net_device *dev)
3055 {
3056 u16 RegRxCounter;
3057 struct r8192_priv *priv = ieee80211_priv(dev);
3058 bool bStuck = false;
3059 static u8 rx_chk_cnt;
3060
3061 read_nic_word(dev, 0x130, &RegRxCounter);
3062 RT_TRACE(COMP_RESET,
3063 "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__,
3064 RegRxCounter, priv->RxCounter);
3065 /* If rssi is small, we should check rx for long time because of bad rx.
3066 * or maybe it will continuous silent reset every 2 seconds.
3067 */
3068 rx_chk_cnt++;
3069 if (priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High + 5)) {
3070 rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */
3071 } else if (priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High + 5) &&
3072 ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_40M) ||
3073 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M))) {
3074 if (rx_chk_cnt < 2)
3075 return bStuck;
3076
3077 rx_chk_cnt = 0;
3078 } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M) ||
3079 (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_20M)) &&
3080 priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
3081 if (rx_chk_cnt < 4)
3082 return bStuck;
3083
3084 rx_chk_cnt = 0;
3085 } else {
3086 if (rx_chk_cnt < 8)
3087 return bStuck;
3088
3089 rx_chk_cnt = 0;
3090 }
3091
3092 if (priv->RxCounter == RegRxCounter)
3093 bStuck = true;
3094
3095 priv->RxCounter = RegRxCounter;
3096
3097 return bStuck;
3098 }
3099
3100 static RESET_TYPE RxCheckStuck(struct net_device *dev)
3101 {
3102 struct r8192_priv *priv = ieee80211_priv(dev);
3103 bool bRxCheck = false;
3104
3105 if (priv->IrpPendingCount > 1)
3106 bRxCheck = true;
3107
3108 if (bRxCheck) {
3109 if (HalRxCheckStuck819xUsb(dev)) {
3110 RT_TRACE(COMP_RESET, "RxStuck Condition\n");
3111 return RESET_TYPE_SILENT;
3112 }
3113 }
3114 return RESET_TYPE_NORESET;
3115 }
3116
3117
3118 /**
3119 * This function is called by Checkforhang to check whether we should
3120 * ask OS to reset driver
3121 *
3122 * \param pAdapter The adapter context for this miniport
3123 *
3124 * Note:NIC with USB interface sholud not call this function because we
3125 * cannot scan descriptor to judge whether there is tx stuck.
3126 * Note: This function may be required to be rewrite for Vista OS.
3127 * <<<Assumption: Tx spinlock has been acquired >>>
3128 *
3129 * 8185 and 8185b does not implement this function.
3130 */
3131 static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
3132 {
3133 struct r8192_priv *priv = ieee80211_priv(dev);
3134 RESET_TYPE TxResetType = RESET_TYPE_NORESET;
3135 RESET_TYPE RxResetType = RESET_TYPE_NORESET;
3136 RT_RF_POWER_STATE rfState;
3137
3138 rfState = priv->ieee80211->eRFPowerState;
3139
3140 TxResetType = TxCheckStuck(dev);
3141 if (rfState != eRfOff ||
3142 (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
3143 /* If driver is in the status of firmware download failure,
3144 * driver skips RF initialization and RF is in turned off
3145 * state. Driver should check whether Rx stuck and do silent
3146 * reset. And if driver is in firmware download failure status,
3147 * driver should initialize RF in the following silent reset
3148 * procedure
3149 *
3150 * Driver should not check RX stuck in IBSS mode because it is
3151 * required to set Check BSSID in order to send beacon,
3152 * however, if check BSSID is set, STA cannot hear any packet
3153 * at all.
3154 */
3155 RxResetType = RxCheckStuck(dev);
3156 }
3157 if (TxResetType == RESET_TYPE_NORMAL ||
3158 RxResetType == RESET_TYPE_NORMAL) {
3159 return RESET_TYPE_NORMAL;
3160 } else if (TxResetType == RESET_TYPE_SILENT ||
3161 RxResetType == RESET_TYPE_SILENT) {
3162 RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__);
3163 return RESET_TYPE_SILENT;
3164 } else {
3165 return RESET_TYPE_NORESET;
3166 }
3167
3168 }
3169
3170 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
3171 static int _rtl8192_up(struct net_device *dev);
3172 static int rtl8192_close(struct net_device *dev);
3173
3174
3175
3176 static void CamRestoreAllEntry(struct net_device *dev)
3177 {
3178 u8 EntryId = 0;
3179 struct r8192_priv *priv = ieee80211_priv(dev);
3180 u8 *MacAddr = priv->ieee80211->current_network.bssid;
3181
3182 static u8 CAM_CONST_ADDR[4][6] = {
3183 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
3184 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
3185 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
3186 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
3187 static u8 CAM_CONST_BROAD[] = {
3188 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3189
3190 RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
3191
3192
3193 if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) ||
3194 (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) {
3195
3196 for (EntryId = 0; EntryId < 4; EntryId++) {
3197 MacAddr = CAM_CONST_ADDR[EntryId];
3198 setKey(dev, EntryId, EntryId,
3199 priv->ieee80211->pairwise_key_type,
3200 MacAddr, 0, NULL);
3201 }
3202
3203 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) {
3204
3205 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3206 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3207 (u8 *)dev->dev_addr, 0, NULL);
3208 else
3209 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3210 MacAddr, 0, NULL);
3211 } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) {
3212
3213 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3214 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3215 (u8 *)dev->dev_addr, 0, NULL);
3216 else
3217 setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type,
3218 MacAddr, 0, NULL);
3219 }
3220
3221
3222
3223 if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) {
3224 MacAddr = CAM_CONST_BROAD;
3225 for (EntryId = 1; EntryId < 4; EntryId++) {
3226 setKey(dev, EntryId, EntryId,
3227 priv->ieee80211->group_key_type,
3228 MacAddr, 0, NULL);
3229 }
3230 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3231 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3232 CAM_CONST_ADDR[0], 0, NULL);
3233 } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) {
3234 MacAddr = CAM_CONST_BROAD;
3235 for (EntryId = 1; EntryId < 4; EntryId++) {
3236 setKey(dev, EntryId, EntryId,
3237 priv->ieee80211->group_key_type,
3238 MacAddr, 0, NULL);
3239 }
3240
3241 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3242 setKey(dev, 0, 0, priv->ieee80211->group_key_type,
3243 CAM_CONST_ADDR[0], 0, NULL);
3244 }
3245 }
3246 /* This function is used to fix Tx/Rx stop bug temporarily.
3247 * This function will do "system reset" to NIC when Tx or Rx is stuck.
3248 * The method checking Tx/Rx stuck of this function is supported by FW,
3249 * which reports Tx and Rx counter to register 0x128 and 0x130.
3250 */
3251 static void rtl819x_ifsilentreset(struct net_device *dev)
3252 {
3253 struct r8192_priv *priv = ieee80211_priv(dev);
3254 u8 reset_times = 0;
3255 int reset_status = 0;
3256 struct ieee80211_device *ieee = priv->ieee80211;
3257
3258
3259 /* If we need to check CCK stop, please uncomment this line. */
3260 /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */
3261
3262 if (priv->ResetProgress == RESET_TYPE_NORESET) {
3263 RESET_START:
3264
3265 RT_TRACE(COMP_RESET, "=========>Reset progress!!\n");
3266
3267 /* Set the variable for reset. */
3268 priv->ResetProgress = RESET_TYPE_SILENT;
3269 down(&priv->wx_sem);
3270 if (priv->up == 0) {
3271 RT_TRACE(COMP_ERR,
3272 "%s():the driver is not up! return\n",
3273 __func__);
3274 up(&priv->wx_sem);
3275 return;
3276 }
3277 priv->up = 0;
3278 RT_TRACE(COMP_RESET,
3279 "%s():======>start to down the driver\n",
3280 __func__);
3281
3282 rtl8192_rtx_disable(dev);
3283 rtl8192_cancel_deferred_work(priv);
3284 deinit_hal_dm(dev);
3285 del_timer_sync(&priv->watch_dog_timer);
3286
3287 ieee->sync_scan_hurryup = 1;
3288 if (ieee->state == IEEE80211_LINKED) {
3289 down(&ieee->wx_sem);
3290 netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n");
3291 ieee80211_stop_send_beacons(priv->ieee80211);
3292 del_timer_sync(&ieee->associate_timer);
3293 cancel_delayed_work(&ieee->associate_retry_wq);
3294 ieee80211_stop_scan(ieee);
3295 netif_carrier_off(dev);
3296 up(&ieee->wx_sem);
3297 } else {
3298 netdev_dbg(dev, "ieee->state is NOT LINKED\n");
3299 ieee80211_softmac_stop_protocol(priv->ieee80211);
3300 }
3301 up(&priv->wx_sem);
3302 RT_TRACE(COMP_RESET,
3303 "%s():<==========down process is finished\n",
3304 __func__);
3305 RT_TRACE(COMP_RESET,
3306 "%s():===========>start up the driver\n",
3307 __func__);
3308 reset_status = _rtl8192_up(dev);
3309
3310 RT_TRACE(COMP_RESET,
3311 "%s():<===========up process is finished\n",
3312 __func__);
3313 if (reset_status == -EAGAIN) {
3314 if (reset_times < 3) {
3315 reset_times++;
3316 goto RESET_START;
3317 } else {
3318 RT_TRACE(COMP_ERR,
3319 " ERR!!! %s(): Reset Failed!!\n",
3320 __func__);
3321 }
3322 }
3323 ieee->is_silent_reset = 1;
3324 EnableHWSecurityConfig8192(dev);
3325 if (ieee->state == IEEE80211_LINKED &&
3326 ieee->iw_mode == IW_MODE_INFRA) {
3327 ieee->set_chan(ieee->dev,
3328 ieee->current_network.channel);
3329
3330 queue_work(ieee->wq, &ieee->associate_complete_wq);
3331
3332 } else if (ieee->state == IEEE80211_LINKED &&
3333 ieee->iw_mode == IW_MODE_ADHOC) {
3334 ieee->set_chan(ieee->dev,
3335 ieee->current_network.channel);
3336 ieee->link_change(ieee->dev);
3337
3338 ieee80211_start_send_beacons(ieee);
3339
3340 if (ieee->data_hard_resume)
3341 ieee->data_hard_resume(ieee->dev);
3342 netif_carrier_on(ieee->dev);
3343 }
3344
3345 CamRestoreAllEntry(dev);
3346
3347 priv->ResetProgress = RESET_TYPE_NORESET;
3348 priv->reset_count++;
3349
3350 priv->bForcedSilentReset = false;
3351 priv->bResetInProgress = false;
3352
3353 /* For test --> force write UFWP. */
3354 write_nic_byte(dev, UFWP, 1);
3355 RT_TRACE(COMP_RESET,
3356 "Reset finished!! ====>[%d]\n",
3357 priv->reset_count);
3358 }
3359 }
3360
3361 static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum,
3362 u32 *TotalRxDataNum)
3363 {
3364 u16 SlotIndex;
3365 u8 i;
3366
3367 *TotalRxBcnNum = 0;
3368 *TotalRxDataNum = 0;
3369
3370 SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) %
3371 (priv->ieee80211->LinkDetectInfo.SlotNum);
3372 priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] =
3373 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
3374 priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] =
3375 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
3376 for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) {
3377 *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
3378 *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
3379 }
3380 }
3381
3382
3383 static void rtl819x_watchdog_wqcallback(struct work_struct *work)
3384 {
3385 struct delayed_work *dwork = container_of(work,
3386 struct delayed_work, work);
3387 struct r8192_priv *priv = container_of(dwork,
3388 struct r8192_priv, watch_dog_wq);
3389 struct net_device *dev = priv->ieee80211->dev;
3390 struct ieee80211_device *ieee = priv->ieee80211;
3391 RESET_TYPE ResetType = RESET_TYPE_NORESET;
3392 static u8 check_reset_cnt;
3393 bool bBusyTraffic = false;
3394 u32 TotalRxBcnNum = 0;
3395 u32 TotalRxDataNum = 0;
3396
3397 if (!priv->up)
3398 return;
3399 hal_dm_watchdog(dev);
3400
3401 /* to get busy traffic condition */
3402 if (ieee->state == IEEE80211_LINKED) {
3403 if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 ||
3404 ieee->LinkDetectInfo.NumTxOkInPeriod > 666) {
3405 bBusyTraffic = true;
3406 }
3407 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3408 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3409 ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
3410 }
3411 /* for AP roaming */
3412 if (priv->ieee80211->state == IEEE80211_LINKED &&
3413 priv->ieee80211->iw_mode == IW_MODE_INFRA) {
3414
3415 rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
3416 if ((TotalRxBcnNum + TotalRxDataNum) == 0) {
3417 #ifdef TODO
3418 if (rfState == eRfOff)
3419 RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
3420 #endif
3421 netdev_dbg(dev,
3422 "===>%s(): AP is power off, connect another one\n",
3423 __func__);
3424 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3425 notify_wx_assoc_event(priv->ieee80211);
3426 RemovePeerTS(priv->ieee80211,
3427 priv->ieee80211->current_network.bssid);
3428 priv->ieee80211->link_change(dev);
3429 queue_work(priv->ieee80211->wq,
3430 &priv->ieee80211->associate_procedure_wq);
3431
3432 }
3433 }
3434 priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3435 priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0;
3436 /* check if reset the driver */
3437 if (check_reset_cnt++ >= 3) {
3438 ResetType = rtl819x_ifcheck_resetornot(dev);
3439 check_reset_cnt = 3;
3440 }
3441 /* This is control by OID set in Pomelo */
3442 if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET &&
3443 (priv->bForcedSilentReset ||
3444 (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) {
3445 RT_TRACE(COMP_RESET,
3446 "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n",
3447 __func__, priv->force_reset, priv->ResetProgress,
3448 priv->bForcedSilentReset,
3449 priv->bDisableNormalResetCheck, ResetType);
3450 rtl819x_ifsilentreset(dev);
3451 }
3452 priv->force_reset = false;
3453 priv->bForcedSilentReset = false;
3454 priv->bResetInProgress = false;
3455 RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
3456
3457 }
3458
3459 static void watch_dog_timer_callback(unsigned long data)
3460 {
3461 struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
3462
3463 queue_delayed_work(priv->priv_wq, &priv->watch_dog_wq, 0);
3464 mod_timer(&priv->watch_dog_timer,
3465 jiffies + MSECS(IEEE80211_WATCH_DOG_TIME));
3466 }
3467 static int _rtl8192_up(struct net_device *dev)
3468 {
3469 struct r8192_priv *priv = ieee80211_priv(dev);
3470 int init_status = 0;
3471
3472 priv->up = 1;
3473 priv->ieee80211->ieee_up = 1;
3474 RT_TRACE(COMP_INIT, "Bringing up iface");
3475 init_status = rtl8192_adapter_start(dev);
3476 if (!init_status) {
3477 RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n",
3478 __func__);
3479 priv->up = priv->ieee80211->ieee_up = 0;
3480 return -EAGAIN;
3481 }
3482 RT_TRACE(COMP_INIT, "start adapter finished\n");
3483 rtl8192_rx_enable(dev);
3484 if (priv->ieee80211->state != IEEE80211_LINKED)
3485 ieee80211_softmac_start_protocol(priv->ieee80211);
3486 ieee80211_reset_queue(priv->ieee80211);
3487 watch_dog_timer_callback((unsigned long)dev);
3488 if (!netif_queue_stopped(dev))
3489 netif_start_queue(dev);
3490 else
3491 netif_wake_queue(dev);
3492
3493 return 0;
3494 }
3495
3496
3497 static int rtl8192_open(struct net_device *dev)
3498 {
3499 struct r8192_priv *priv = ieee80211_priv(dev);
3500 int ret;
3501
3502 down(&priv->wx_sem);
3503 ret = rtl8192_up(dev);
3504 up(&priv->wx_sem);
3505 return ret;
3506
3507 }
3508
3509
3510 int rtl8192_up(struct net_device *dev)
3511 {
3512 struct r8192_priv *priv = ieee80211_priv(dev);
3513
3514 if (priv->up == 1)
3515 return -1;
3516
3517 return _rtl8192_up(dev);
3518 }
3519
3520
3521 static int rtl8192_close(struct net_device *dev)
3522 {
3523 struct r8192_priv *priv = ieee80211_priv(dev);
3524 int ret;
3525
3526 down(&priv->wx_sem);
3527
3528 ret = rtl8192_down(dev);
3529
3530 up(&priv->wx_sem);
3531
3532 return ret;
3533
3534 }
3535
3536 int rtl8192_down(struct net_device *dev)
3537 {
3538 struct r8192_priv *priv = ieee80211_priv(dev);
3539 int i;
3540
3541 if (priv->up == 0)
3542 return -1;
3543
3544 priv->up = 0;
3545 priv->ieee80211->ieee_up = 0;
3546 RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
3547 /* FIXME */
3548 if (!netif_queue_stopped(dev))
3549 netif_stop_queue(dev);
3550
3551 rtl8192_rtx_disable(dev);
3552
3553 /* Tx related queue release */
3554 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3555 skb_queue_purge(&priv->ieee80211->skb_waitQ[i]);
3556 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3557 skb_queue_purge(&priv->ieee80211->skb_aggQ[i]);
3558
3559 for (i = 0; i < MAX_QUEUE_SIZE; i++)
3560 skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]);
3561
3562 /* as cancel_delayed_work will del work->timer, so if work is not
3563 * defined as struct delayed_work, it will corrupt
3564 */
3565 rtl8192_cancel_deferred_work(priv);
3566 deinit_hal_dm(dev);
3567 del_timer_sync(&priv->watch_dog_timer);
3568
3569
3570 ieee80211_softmac_stop_protocol(priv->ieee80211);
3571 memset(&priv->ieee80211->current_network, 0,
3572 offsetof(struct ieee80211_network, list));
3573 RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__);
3574
3575 return 0;
3576 }
3577
3578
3579 void rtl8192_commit(struct net_device *dev)
3580 {
3581 struct r8192_priv *priv = ieee80211_priv(dev);
3582 int reset_status = 0;
3583
3584 if (priv->up == 0)
3585 return;
3586 priv->up = 0;
3587
3588 rtl8192_cancel_deferred_work(priv);
3589 del_timer_sync(&priv->watch_dog_timer);
3590
3591 ieee80211_softmac_stop_protocol(priv->ieee80211);
3592
3593 rtl8192_rtx_disable(dev);
3594 reset_status = _rtl8192_up(dev);
3595
3596 }
3597
3598 static void rtl8192_restart(struct work_struct *work)
3599 {
3600 struct r8192_priv *priv = container_of(work, struct r8192_priv,
3601 reset_wq);
3602 struct net_device *dev = priv->ieee80211->dev;
3603
3604 down(&priv->wx_sem);
3605
3606 rtl8192_commit(dev);
3607
3608 up(&priv->wx_sem);
3609 }
3610
3611 static void r8192_set_multicast(struct net_device *dev)
3612 {
3613 struct r8192_priv *priv = ieee80211_priv(dev);
3614 short promisc;
3615
3616 /* FIXME FIXME */
3617
3618 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3619
3620 if (promisc != priv->promisc)
3621
3622 priv->promisc = promisc;
3623 }
3624
3625
3626 static int r8192_set_mac_adr(struct net_device *dev, void *mac)
3627 {
3628 struct r8192_priv *priv = ieee80211_priv(dev);
3629 struct sockaddr *addr = mac;
3630
3631 down(&priv->wx_sem);
3632
3633 ether_addr_copy(dev->dev_addr, addr->sa_data);
3634
3635 schedule_work(&priv->reset_wq);
3636 up(&priv->wx_sem);
3637
3638 return 0;
3639 }
3640
3641 /* based on ipw2200 driver */
3642 static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3643 {
3644 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3645 struct iwreq *wrq = (struct iwreq *)rq;
3646 int ret = -1;
3647 struct ieee80211_device *ieee = priv->ieee80211;
3648 u32 key[4];
3649 u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3650 struct iw_point *p = &wrq->u.data;
3651 struct ieee_param *ipw = NULL;
3652
3653 down(&priv->wx_sem);
3654
3655
3656 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3657 ret = -EINVAL;
3658 goto out;
3659 }
3660
3661 ipw = memdup_user(p->pointer, p->length);
3662 if (IS_ERR(ipw)) {
3663 ret = PTR_ERR(ipw);
3664 goto out;
3665 }
3666
3667 switch (cmd) {
3668 case RTL_IOCTL_WPA_SUPPLICANT:
3669 /* parse here for HW security */
3670 if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) {
3671 if (ipw->u.crypt.set_tx) {
3672 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3673 ieee->pairwise_key_type = KEY_TYPE_CCMP;
3674 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3675 ieee->pairwise_key_type = KEY_TYPE_TKIP;
3676 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3677 if (ipw->u.crypt.key_len == 13)
3678 ieee->pairwise_key_type = KEY_TYPE_WEP104;
3679 else if (ipw->u.crypt.key_len == 5)
3680 ieee->pairwise_key_type = KEY_TYPE_WEP40;
3681 } else {
3682 ieee->pairwise_key_type = KEY_TYPE_NA;
3683 }
3684
3685 if (ieee->pairwise_key_type) {
3686 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3687 EnableHWSecurityConfig8192(dev);
3688 /* We fill both index entry and 4th
3689 * entry for pairwise key as in IPW
3690 * interface, adhoc will only get here,
3691 * so we need index entry for its
3692 * default key serching!
3693 */
3694 setKey(dev, 4, ipw->u.crypt.idx,
3695 ieee->pairwise_key_type,
3696 (u8 *)ieee->ap_mac_addr,
3697 0, key);
3698 if (ieee->auth_mode != 2)
3699 setKey(dev, ipw->u.crypt.idx,
3700 ipw->u.crypt.idx,
3701 ieee->pairwise_key_type,
3702 (u8 *)ieee->ap_mac_addr,
3703 0, key);
3704 }
3705 } else {
3706 memcpy((u8 *)key, ipw->u.crypt.key, 16);
3707 if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) {
3708 ieee->group_key_type = KEY_TYPE_CCMP;
3709 } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) {
3710 ieee->group_key_type = KEY_TYPE_TKIP;
3711 } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
3712 if (ipw->u.crypt.key_len == 13)
3713 ieee->group_key_type = KEY_TYPE_WEP104;
3714 else if (ipw->u.crypt.key_len == 5)
3715 ieee->group_key_type = KEY_TYPE_WEP40;
3716 } else {
3717 ieee->group_key_type = KEY_TYPE_NA;
3718 }
3719
3720 if (ieee->group_key_type) {
3721 setKey(dev, ipw->u.crypt.idx,
3722 /* KeyIndex */
3723 ipw->u.crypt.idx,
3724 /* KeyType */
3725 ieee->group_key_type,
3726 /* MacAddr */
3727 broadcast_addr,
3728 /* DefaultKey */
3729 0,
3730 /* KeyContent */
3731 key);
3732 }
3733 }
3734 }
3735 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211,
3736 &wrq->u.data);
3737 break;
3738
3739 default:
3740 ret = -EOPNOTSUPP;
3741 break;
3742 }
3743 kfree(ipw);
3744 ipw = NULL;
3745 out:
3746 up(&priv->wx_sem);
3747 return ret;
3748 }
3749
3750 static u8 HwRateToMRate90(bool bIsHT, u8 rate)
3751 {
3752 u8 ret_rate = 0xff;
3753
3754 if (!bIsHT) {
3755 switch (rate) {
3756 case DESC90_RATE1M:
3757 ret_rate = MGN_1M;
3758 break;
3759 case DESC90_RATE2M:
3760 ret_rate = MGN_2M;
3761 break;
3762 case DESC90_RATE5_5M:
3763 ret_rate = MGN_5_5M;
3764 break;
3765 case DESC90_RATE11M:
3766 ret_rate = MGN_11M;
3767 break;
3768 case DESC90_RATE6M:
3769 ret_rate = MGN_6M;
3770 break;
3771 case DESC90_RATE9M:
3772 ret_rate = MGN_9M;
3773 break;
3774 case DESC90_RATE12M:
3775 ret_rate = MGN_12M;
3776 break;
3777 case DESC90_RATE18M:
3778 ret_rate = MGN_18M;
3779 break;
3780 case DESC90_RATE24M:
3781 ret_rate = MGN_24M;
3782 break;
3783 case DESC90_RATE36M:
3784 ret_rate = MGN_36M;
3785 break;
3786 case DESC90_RATE48M:
3787 ret_rate = MGN_48M;
3788 break;
3789 case DESC90_RATE54M:
3790 ret_rate = MGN_54M;
3791 break;
3792
3793 default:
3794 ret_rate = 0xff;
3795 RT_TRACE(COMP_RECV,
3796 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3797 rate, bIsHT);
3798 break;
3799 }
3800
3801 } else {
3802 switch (rate) {
3803 case DESC90_RATEMCS0:
3804 ret_rate = MGN_MCS0;
3805 break;
3806 case DESC90_RATEMCS1:
3807 ret_rate = MGN_MCS1;
3808 break;
3809 case DESC90_RATEMCS2:
3810 ret_rate = MGN_MCS2;
3811 break;
3812 case DESC90_RATEMCS3:
3813 ret_rate = MGN_MCS3;
3814 break;
3815 case DESC90_RATEMCS4:
3816 ret_rate = MGN_MCS4;
3817 break;
3818 case DESC90_RATEMCS5:
3819 ret_rate = MGN_MCS5;
3820 break;
3821 case DESC90_RATEMCS6:
3822 ret_rate = MGN_MCS6;
3823 break;
3824 case DESC90_RATEMCS7:
3825 ret_rate = MGN_MCS7;
3826 break;
3827 case DESC90_RATEMCS8:
3828 ret_rate = MGN_MCS8;
3829 break;
3830 case DESC90_RATEMCS9:
3831 ret_rate = MGN_MCS9;
3832 break;
3833 case DESC90_RATEMCS10:
3834 ret_rate = MGN_MCS10;
3835 break;
3836 case DESC90_RATEMCS11:
3837 ret_rate = MGN_MCS11;
3838 break;
3839 case DESC90_RATEMCS12:
3840 ret_rate = MGN_MCS12;
3841 break;
3842 case DESC90_RATEMCS13:
3843 ret_rate = MGN_MCS13;
3844 break;
3845 case DESC90_RATEMCS14:
3846 ret_rate = MGN_MCS14;
3847 break;
3848 case DESC90_RATEMCS15:
3849 ret_rate = MGN_MCS15;
3850 break;
3851 case DESC90_RATEMCS32:
3852 ret_rate = 0x80 | 0x20;
3853 break;
3854
3855 default:
3856 ret_rate = 0xff;
3857 RT_TRACE(COMP_RECV,
3858 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
3859 rate, bIsHT);
3860 break;
3861 }
3862 }
3863
3864 return ret_rate;
3865 }
3866
3867 /**
3868 * Function: UpdateRxPktTimeStamp
3869 * Overview: Record the TSF time stamp when receiving a packet
3870 *
3871 * Input:
3872 * PADAPTER Adapter
3873 * PRT_RFD pRfd,
3874 *
3875 * Output:
3876 * PRT_RFD pRfd
3877 * (pRfd->Status.TimeStampHigh is updated)
3878 * (pRfd->Status.TimeStampLow is updated)
3879 * Return:
3880 * None
3881 */
3882 static void UpdateRxPktTimeStamp8190(struct net_device *dev,
3883 struct ieee80211_rx_stats *stats)
3884 {
3885 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
3886
3887 if (stats->bIsAMPDU && !stats->bFirstMPDU) {
3888 stats->mac_time[0] = priv->LastRxDescTSFLow;
3889 stats->mac_time[1] = priv->LastRxDescTSFHigh;
3890 } else {
3891 priv->LastRxDescTSFLow = stats->mac_time[0];
3892 priv->LastRxDescTSFHigh = stats->mac_time[1];
3893 }
3894 }
3895
3896 /* 0-100 index. */
3897 static long rtl819x_translate_todbm(u8 signal_strength_index)
3898 {
3899 long signal_power; /* in dBm. */
3900
3901 /* Translate to dBm (x=0.5y-95). */
3902 signal_power = (long)((signal_strength_index + 1) >> 1);
3903 signal_power -= 95;
3904
3905 return signal_power;
3906 }
3907
3908
3909 /* We can not declare RSSI/EVM total value of sliding window to
3910 * be a local static. Otherwise, it may increase when we return from S3/S4. The
3911 * value will be kept in memory or disk. Declare the value in the adaptor
3912 * and it will be reinitialized when returned from S3/S4.
3913 */
3914 static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
3915 struct ieee80211_rx_stats *pprevious_stats,
3916 struct ieee80211_rx_stats *pcurrent_stats)
3917 {
3918 bool bcheck = false;
3919 u8 rfpath;
3920 u32 nspatial_stream, tmp_val;
3921 static u32 slide_rssi_index, slide_rssi_statistics;
3922 static u32 slide_evm_index, slide_evm_statistics;
3923 static u32 last_rssi, last_evm;
3924
3925 static u32 slide_beacon_adc_pwdb_index;
3926 static u32 slide_beacon_adc_pwdb_statistics;
3927 static u32 last_beacon_adc_pwdb;
3928
3929 struct rtl_80211_hdr_3addr *hdr;
3930 u16 sc;
3931 unsigned int frag, seq;
3932
3933 hdr = (struct rtl_80211_hdr_3addr *)buffer;
3934 sc = le16_to_cpu(hdr->seq_ctl);
3935 frag = WLAN_GET_SEQ_FRAG(sc);
3936 seq = WLAN_GET_SEQ_SEQ(sc);
3937 /* to record the sequence number */
3938 pcurrent_stats->Seq_Num = seq;
3939
3940 /* Check whether we should take the previous packet into accounting */
3941 if (!pprevious_stats->bIsAMPDU) {
3942 /* if previous packet is not aggregated packet */
3943 bcheck = true;
3944 }
3945
3946 if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
3947 slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
3948 last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
3949 priv->stats.slide_rssi_total -= last_rssi;
3950 }
3951 priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
3952
3953 priv->stats.slide_signal_strength[slide_rssi_index++] =
3954 pprevious_stats->SignalStrength;
3955 if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
3956 slide_rssi_index = 0;
3957
3958 /* <1> Showed on UI for user, in dbm */
3959 tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics;
3960 priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
3961 pcurrent_stats->rssi = priv->stats.signal_strength;
3962
3963 /* If the previous packet does not match the criteria, neglect it */
3964 if (!pprevious_stats->bPacketMatchBSSID) {
3965 if (!pprevious_stats->bToSelfBA)
3966 return;
3967 }
3968
3969 if (!bcheck)
3970 return;
3971
3972
3973 /* only rtl8190 supported
3974 * rtl8190_process_cck_rxpathsel(priv,pprevious_stats);
3975 */
3976
3977 /* Check RSSI */
3978 priv->stats.num_process_phyinfo++;
3979
3980 /* record the general signal strength to the sliding window. */
3981
3982
3983 /* <2> Showed on UI for engineering
3984 * hardware does not provide rssi information for each rf path in CCK
3985 */
3986 if (!pprevious_stats->bIsCCK &&
3987 (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) {
3988 for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) {
3989 if (!rtl8192_phy_CheckIsLegalRFPath(
3990 priv->ieee80211->dev, rfpath))
3991 continue;
3992
3993 if (priv->stats.rx_rssi_percentage[rfpath] == 0)
3994 priv->stats.rx_rssi_percentage[rfpath] =
3995 pprevious_stats->RxMIMOSignalStrength[rfpath];
3996 if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) {
3997 priv->stats.rx_rssi_percentage[rfpath] =
3998 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
3999 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4000 priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1;
4001 } else {
4002 priv->stats.rx_rssi_percentage[rfpath] =
4003 ((priv->stats.rx_rssi_percentage[rfpath] * (Rx_Smooth_Factor - 1)) +
4004 (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (Rx_Smooth_Factor);
4005 }
4006 RT_TRACE(COMP_DBG,
4007 "priv->stats.rx_rssi_percentage[rfPath] = %d\n",
4008 priv->stats.rx_rssi_percentage[rfpath]);
4009 }
4010 }
4011
4012
4013 /* Check PWDB. */
4014 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4015 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4016 pprevious_stats->RxPWDBAll);
4017
4018 if (pprevious_stats->bPacketBeacon) {
4019 /* record the beacon pwdb to the sliding window. */
4020 if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) {
4021 slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
4022 last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
4023 priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
4024 }
4025 priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
4026 priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
4027 slide_beacon_adc_pwdb_index++;
4028 if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
4029 slide_beacon_adc_pwdb_index = 0;
4030 pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics;
4031 if (pprevious_stats->RxPWDBAll >= 3)
4032 pprevious_stats->RxPWDBAll -= 3;
4033 }
4034
4035 RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
4036 pprevious_stats->bIsCCK ? "CCK" : "OFDM",
4037 pprevious_stats->RxPWDBAll);
4038
4039
4040 if (pprevious_stats->bPacketToSelf ||
4041 pprevious_stats->bPacketBeacon ||
4042 pprevious_stats->bToSelfBA) {
4043 if (priv->undecorated_smoothed_pwdb < 0)
4044 /* initialize */
4045 priv->undecorated_smoothed_pwdb =
4046 pprevious_stats->RxPWDBAll;
4047 if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) {
4048 priv->undecorated_smoothed_pwdb =
4049 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4050 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4051 priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
4052 } else {
4053 priv->undecorated_smoothed_pwdb =
4054 (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) +
4055 (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor);
4056 }
4057
4058 }
4059
4060 /* Check EVM */
4061 /* record the general EVM to the sliding window. */
4062 if (pprevious_stats->SignalQuality) {
4063 if (pprevious_stats->bPacketToSelf ||
4064 pprevious_stats->bPacketBeacon ||
4065 pprevious_stats->bToSelfBA) {
4066 if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) {
4067 slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
4068 last_evm = priv->stats.slide_evm[slide_evm_index];
4069 priv->stats.slide_evm_total -= last_evm;
4070 }
4071
4072 priv->stats.slide_evm_total +=
4073 pprevious_stats->SignalQuality;
4074
4075 priv->stats.slide_evm[slide_evm_index++] =
4076 pprevious_stats->SignalQuality;
4077 if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
4078 slide_evm_index = 0;
4079
4080 /* <1> Showed on UI for user, in percentage. */
4081 tmp_val = priv->stats.slide_evm_total /
4082 slide_evm_statistics;
4083 priv->stats.signal_quality = tmp_val;
4084 /* Showed on UI for user in Windows Vista,
4085 * for Link quality.
4086 */
4087 priv->stats.last_signal_strength_inpercent = tmp_val;
4088 }
4089
4090 /* <2> Showed on UI for engineering */
4091 if (pprevious_stats->bPacketToSelf ||
4092 pprevious_stats->bPacketBeacon ||
4093 pprevious_stats->bToSelfBA) {
4094 for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */
4095 if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) {
4096 if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */
4097 priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
4098 priv->stats.rx_evm_percentage[nspatial_stream] =
4099 ((priv->stats.rx_evm_percentage[nspatial_stream] * (Rx_Smooth_Factor - 1)) +
4100 (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (Rx_Smooth_Factor);
4101 }
4102 }
4103 }
4104 }
4105
4106
4107 }
4108
4109 /*-----------------------------------------------------------------------------
4110 * Function: rtl819x_query_rxpwrpercentage()
4111 *
4112 * Overview:
4113 *
4114 * Input: char antpower
4115 *
4116 * Output: NONE
4117 *
4118 * Return: 0-100 percentage
4119 *---------------------------------------------------------------------------*/
4120 static u8 rtl819x_query_rxpwrpercentage(char antpower)
4121 {
4122 if ((antpower <= -100) || (antpower >= 20))
4123 return 0;
4124 else if (antpower >= 0)
4125 return 100;
4126 else
4127 return 100 + antpower;
4128
4129 } /* QueryRxPwrPercentage */
4130
4131 static u8 rtl819x_evm_dbtopercentage(char value)
4132 {
4133 char ret_val;
4134
4135 ret_val = value;
4136
4137 if (ret_val >= 0)
4138 ret_val = 0;
4139 if (ret_val <= -33)
4140 ret_val = -33;
4141 ret_val = 0 - ret_val;
4142 ret_val *= 3;
4143 if (ret_val == 99)
4144 ret_val = 100;
4145 return ret_val;
4146 }
4147 /* We want good-looking for signal strength/quality */
4148 static long rtl819x_signal_scale_mapping(long currsig)
4149 {
4150 long retsig;
4151
4152 /* Step 1. Scale mapping. */
4153 if (currsig >= 61 && currsig <= 100)
4154 retsig = 90 + ((currsig - 60) / 4);
4155 else if (currsig >= 41 && currsig <= 60)
4156 retsig = 78 + ((currsig - 40) / 2);
4157 else if (currsig >= 31 && currsig <= 40)
4158 retsig = 66 + (currsig - 30);
4159 else if (currsig >= 21 && currsig <= 30)
4160 retsig = 54 + (currsig - 20);
4161 else if (currsig >= 5 && currsig <= 20)
4162 retsig = 42 + (((currsig - 5) * 2) / 3);
4163 else if (currsig == 4)
4164 retsig = 36;
4165 else if (currsig == 3)
4166 retsig = 27;
4167 else if (currsig == 2)
4168 retsig = 18;
4169 else if (currsig == 1)
4170 retsig = 9;
4171 else
4172 retsig = currsig;
4173
4174 return retsig;
4175 }
4176
4177 static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo)
4178 {
4179 if (pdrvinfo->RxHT)
4180 return false;
4181
4182 switch (pdrvinfo->RxRate) {
4183 case DESC90_RATE1M:
4184 case DESC90_RATE2M:
4185 case DESC90_RATE5_5M:
4186 case DESC90_RATE11M:
4187 return true;
4188 default:
4189 return false;
4190 }
4191 }
4192
4193 static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
4194 struct ieee80211_rx_stats *pstats,
4195 rx_drvinfo_819x_usb *pdrvinfo,
4196 struct ieee80211_rx_stats *precord_stats,
4197 bool bpacket_match_bssid,
4198 bool bpacket_toself,
4199 bool bPacketBeacon,
4200 bool bToSelfBA)
4201 {
4202 phy_sts_ofdm_819xusb_t *pofdm_buf;
4203 phy_sts_cck_819xusb_t *pcck_buf;
4204 phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
4205 u8 *prxpkt;
4206 u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
4207 char rx_pwr[4], rx_pwr_all = 0;
4208 char rx_snrX, rx_evmX;
4209 u8 evm, pwdb_all;
4210 u32 RSSI, total_rssi = 0;
4211 u8 is_cck_rate = 0;
4212 u8 rf_rx_num = 0;
4213 u8 sq;
4214
4215
4216 priv->stats.numqry_phystatus++;
4217
4218 is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
4219
4220 /* Record it for next packet processing */
4221 memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
4222 pstats->bPacketMatchBSSID =
4223 precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
4224 pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
4225 pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;
4226 pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
4227 pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
4228
4229 prxpkt = (u8 *)pdrvinfo;
4230
4231 /* Move pointer to the 16th bytes. Phy status start address. */
4232 prxpkt += sizeof(rx_drvinfo_819x_usb);
4233
4234 /* Initial the cck and ofdm buffer pointer */
4235 pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt;
4236 pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt;
4237
4238 pstats->RxMIMOSignalQuality[0] = -1;
4239 pstats->RxMIMOSignalQuality[1] = -1;
4240 precord_stats->RxMIMOSignalQuality[0] = -1;
4241 precord_stats->RxMIMOSignalQuality[1] = -1;
4242
4243 if (is_cck_rate) {
4244 /* (1)Hardware does not provide RSSI for CCK */
4245
4246 /* (2)PWDB, Average PWDB cacluated by hardware
4247 * (for rate adaptive)
4248 */
4249 u8 report;
4250
4251 priv->stats.numqry_phystatusCCK++;
4252
4253 if (!priv->bCckHighPower) {
4254 report = pcck_buf->cck_agc_rpt & 0xc0;
4255 report >>= 6;
4256 switch (report) {
4257 case 0x3:
4258 rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
4259 break;
4260 case 0x2:
4261 rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
4262 break;
4263 case 0x1:
4264 rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
4265 break;
4266 case 0x0:
4267 rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e);
4268 break;
4269 }
4270 } else {
4271 report = pcck_buf->cck_agc_rpt & 0x60;
4272 report >>= 5;
4273 switch (report) {
4274 case 0x3:
4275 rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4276 break;
4277 case 0x2:
4278 rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4279 break;
4280 case 0x1:
4281 rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4282 break;
4283 case 0x0:
4284 rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1);
4285 break;
4286 }
4287 }
4288
4289 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4290 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4291 pstats->RecvSignalPower = pwdb_all;
4292
4293 /* (3) Get Signal Quality (EVM) */
4294
4295 if (pstats->RxPWDBAll > 40) {
4296 sq = 100;
4297 } else {
4298 sq = pcck_buf->sq_rpt;
4299
4300 if (pcck_buf->sq_rpt > 64)
4301 sq = 0;
4302 else if (pcck_buf->sq_rpt < 20)
4303 sq = 100;
4304 else
4305 sq = ((64 - sq) * 100) / 44;
4306 }
4307 pstats->SignalQuality = precord_stats->SignalQuality = sq;
4308 pstats->RxMIMOSignalQuality[0] =
4309 precord_stats->RxMIMOSignalQuality[0] = sq;
4310 pstats->RxMIMOSignalQuality[1] =
4311 precord_stats->RxMIMOSignalQuality[1] = -1;
4312
4313 } else {
4314 priv->stats.numqry_phystatusHT++;
4315
4316 /* (1)Get RSSI for HT rate */
4317 for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) {
4318 /* We will judge RF RX path now. */
4319 if (priv->brfpath_rxenable[i])
4320 rf_rx_num++;
4321 else
4322 continue;
4323
4324 if (!rtl8192_phy_CheckIsLegalRFPath(
4325 priv->ieee80211->dev, i))
4326 continue;
4327
4328 rx_pwr[i] =
4329 ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106;
4330
4331 /* Get Rx snr value in DB */
4332 tmp_rxsnr = pofdm_buf->rxsnr_X[i];
4333 rx_snrX = (char)(tmp_rxsnr);
4334 rx_snrX /= 2;
4335 priv->stats.rxSNRdB[i] = (long)rx_snrX;
4336
4337 /* Translate DBM to percentage. */
4338 RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
4339 total_rssi += RSSI;
4340
4341 /* Record Signal Strength for next packet */
4342 pstats->RxMIMOSignalStrength[i] = (u8)RSSI;
4343 precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI;
4344 }
4345
4346
4347 /* (2)PWDB, Average PWDB cacluated by hardware
4348 * (for rate adaptive)
4349 */
4350 rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106;
4351 pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
4352
4353 pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
4354 pstats->RxPower = precord_stats->RxPower = rx_pwr_all;
4355
4356 /* (3)EVM of HT rate */
4357 if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 &&
4358 pdrvinfo->RxRate <= DESC90_RATEMCS15)
4359 /* both spatial stream make sense */
4360 max_spatial_stream = 2;
4361 else
4362 /* only spatial stream 1 makes sense */
4363 max_spatial_stream = 1;
4364
4365 for (i = 0; i < max_spatial_stream; i++) {
4366 tmp_rxevm = pofdm_buf->rxevm_X[i];
4367 rx_evmX = (char)(tmp_rxevm);
4368
4369 /* Do not use shift operation like "rx_evmX >>= 1"
4370 * because the compiler of free build environment will
4371 * set the most significant bit to "zero" when doing
4372 * shifting operation which may change a negative value
4373 * to positive one, then the dbm value (which is
4374 * supposed to be negative) is not correct anymore.
4375 */
4376 rx_evmX /= 2; /* dbm */
4377
4378 evm = rtl819x_evm_dbtopercentage(rx_evmX);
4379 if (i == 0)
4380 /* Fill value in RFD, Get the first spatial
4381 * stream only
4382 */
4383 pstats->SignalQuality =
4384 precord_stats->SignalQuality =
4385 (u8)(evm & 0xff);
4386 pstats->RxMIMOSignalQuality[i] =
4387 precord_stats->RxMIMOSignalQuality[i] =
4388 (u8)(evm & 0xff);
4389 }
4390
4391
4392 /* record rx statistics for debug */
4393 rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
4394 prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)
4395 &rxsc_sgien_exflg;
4396 if (pdrvinfo->BW) /* 40M channel */
4397 priv->stats.received_bwtype[1 + prxsc->rxsc]++;
4398 else /* 20M channel */
4399 priv->stats.received_bwtype[0]++;
4400 }
4401
4402 /* UI BSS List signal strength(in percentage), make it good looking,
4403 * from 0~100. It is assigned to the BSS List in
4404 * GetValueFromBeaconOrProbeRsp().
4405 */
4406 if (is_cck_rate) {
4407 pstats->SignalStrength =
4408 precord_stats->SignalStrength =
4409 (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));
4410 } else {
4411 /* We can judge RX path number now. */
4412 if (rf_rx_num != 0) {
4413 pstats->SignalStrength =
4414 precord_stats->SignalStrength =
4415 (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num)));
4416 }
4417 }
4418 } /* QueryRxPhyStatus8190Pci */
4419
4420 static void rtl8192_record_rxdesc_forlateruse(
4421 struct ieee80211_rx_stats *psrc_stats,
4422 struct ieee80211_rx_stats *ptarget_stats)
4423 {
4424 ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
4425 ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
4426 ptarget_stats->Seq_Num = psrc_stats->Seq_Num;
4427 }
4428
4429
4430 static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
4431 struct ieee80211_rx_stats *pstats,
4432 rx_drvinfo_819x_usb *pdrvinfo)
4433 {
4434 /* TODO: We must only check packet for current MAC address.
4435 * Not finish
4436 */
4437 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4438 struct net_device *dev = info->dev;
4439 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4440 bool bpacket_match_bssid, bpacket_toself;
4441 bool bPacketBeacon = false, bToSelfBA = false;
4442 static struct ieee80211_rx_stats previous_stats;
4443 struct rtl_80211_hdr_3addr *hdr;
4444 u16 fc, type;
4445
4446 /* Get Signal Quality for only RX data queue (but not command queue) */
4447
4448 u8 *tmp_buf;
4449 u8 *praddr;
4450
4451 /* Get MAC frame start address. */
4452 tmp_buf = (u8 *)skb->data;
4453
4454 hdr = (struct rtl_80211_hdr_3addr *)tmp_buf;
4455 fc = le16_to_cpu(hdr->frame_ctl);
4456 type = WLAN_FC_GET_TYPE(fc);
4457 praddr = hdr->addr1;
4458
4459 /* Check if the received packet is acceptable. */
4460 bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
4461 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
4462 && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
4463 bpacket_toself = bpacket_match_bssid &
4464 (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
4465
4466 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
4467 bPacketBeacon = true;
4468 if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) {
4469 if ((eqMacAddr(praddr, dev->dev_addr)))
4470 bToSelfBA = true;
4471 }
4472
4473
4474
4475 if (bpacket_match_bssid)
4476 priv->stats.numpacket_matchbssid++;
4477 if (bpacket_toself)
4478 priv->stats.numpacket_toself++;
4479 /* Process PHY information for previous packet (RSSI/PWDB/EVM)
4480 * Because phy information is contained in the last packet of AMPDU
4481 * only, so driver should process phy information of previous packet
4482 */
4483 rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
4484 rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats,
4485 bpacket_match_bssid, bpacket_toself,
4486 bPacketBeacon, bToSelfBA);
4487 rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats);
4488
4489 }
4490
4491 /**
4492 * Function: UpdateReceivedRateHistogramStatistics
4493 * Overview: Record the received data rate
4494 *
4495 * Input:
4496 * struct net_device *dev
4497 * struct ieee80211_rx_stats *stats
4498 *
4499 * Output:
4500 *
4501 * (priv->stats.ReceivedRateHistogram[] is updated)
4502 * Return:
4503 * None
4504 */
4505 static void
4506 UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
4507 struct ieee80211_rx_stats *stats)
4508 {
4509 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4510 /* 0: Total, 1:OK, 2:CRC, 3:ICV */
4511 u32 rcvType = 1;
4512 u32 rateIndex;
4513 /* 1: short preamble/GI, 0: long preamble/GI */
4514 u32 preamble_guardinterval;
4515
4516
4517 if (stats->bCRC)
4518 rcvType = 2;
4519 else if (stats->bICV)
4520 rcvType = 3;
4521
4522 if (stats->bShortPreamble)
4523 preamble_guardinterval = 1; /* short */
4524 else
4525 preamble_guardinterval = 0; /* long */
4526
4527 switch (stats->rate) {
4528 /* CCK rate */
4529 case MGN_1M:
4530 rateIndex = 0;
4531 break;
4532 case MGN_2M:
4533 rateIndex = 1;
4534 break;
4535 case MGN_5_5M:
4536 rateIndex = 2;
4537 break;
4538 case MGN_11M:
4539 rateIndex = 3;
4540 break;
4541 /* Legacy OFDM rate */
4542 case MGN_6M:
4543 rateIndex = 4;
4544 break;
4545 case MGN_9M:
4546 rateIndex = 5;
4547 break;
4548 case MGN_12M:
4549 rateIndex = 6;
4550 break;
4551 case MGN_18M:
4552 rateIndex = 7;
4553 break;
4554 case MGN_24M:
4555 rateIndex = 8;
4556 break;
4557 case MGN_36M:
4558 rateIndex = 9;
4559 break;
4560 case MGN_48M:
4561 rateIndex = 10;
4562 break;
4563 case MGN_54M:
4564 rateIndex = 11;
4565 break;
4566 /* 11n High throughput rate */
4567 case MGN_MCS0:
4568 rateIndex = 12;
4569 break;
4570 case MGN_MCS1:
4571 rateIndex = 13;
4572 break;
4573 case MGN_MCS2:
4574 rateIndex = 14;
4575 break;
4576 case MGN_MCS3:
4577 rateIndex = 15;
4578 break;
4579 case MGN_MCS4:
4580 rateIndex = 16;
4581 break;
4582 case MGN_MCS5:
4583 rateIndex = 17;
4584 break;
4585 case MGN_MCS6:
4586 rateIndex = 18;
4587 break;
4588 case MGN_MCS7:
4589 rateIndex = 19;
4590 break;
4591 case MGN_MCS8:
4592 rateIndex = 20;
4593 break;
4594 case MGN_MCS9:
4595 rateIndex = 21;
4596 break;
4597 case MGN_MCS10:
4598 rateIndex = 22;
4599 break;
4600 case MGN_MCS11:
4601 rateIndex = 23;
4602 break;
4603 case MGN_MCS12:
4604 rateIndex = 24;
4605 break;
4606 case MGN_MCS13:
4607 rateIndex = 25;
4608 break;
4609 case MGN_MCS14:
4610 rateIndex = 26;
4611 break;
4612 case MGN_MCS15:
4613 rateIndex = 27;
4614 break;
4615 default:
4616 rateIndex = 28;
4617 break;
4618 }
4619 priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
4620 priv->stats.received_rate_histogram[0][rateIndex]++; /* total */
4621 priv->stats.received_rate_histogram[rcvType][rateIndex]++;
4622 }
4623
4624
4625 static void query_rxdesc_status(struct sk_buff *skb,
4626 struct ieee80211_rx_stats *stats,
4627 bool bIsRxAggrSubframe)
4628 {
4629 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4630 struct net_device *dev = info->dev;
4631 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4632 rx_drvinfo_819x_usb *driver_info = NULL;
4633
4634 /* Get Rx Descriptor Information */
4635 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4636
4637 stats->Length = desc->Length;
4638 stats->RxDrvInfoSize = desc->RxDrvInfoSize;
4639 stats->RxBufShift = 0;
4640 stats->bICV = desc->ICV;
4641 stats->bCRC = desc->CRC32;
4642 stats->bHwError = stats->bCRC | stats->bICV;
4643 /* RTL8190 set this bit to indicate that Hw does not decrypt packet */
4644 stats->Decrypted = !desc->SWDec;
4645
4646 if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) &&
4647 (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP))
4648 stats->bHwError = false;
4649 else
4650 stats->bHwError = stats->bCRC | stats->bICV;
4651
4652 if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE)
4653 stats->bHwError |= 1;
4654 /* Get Driver Info */
4655 /* TODO: Need to verify it on FGPA platform
4656 * Driver info are written to the RxBuffer following rx desc
4657 */
4658 if (stats->RxDrvInfoSize != 0) {
4659 driver_info = (rx_drvinfo_819x_usb *)(
4660 skb->data
4661 + sizeof(rx_desc_819x_usb)
4662 + stats->RxBufShift
4663 );
4664 /* unit: 0.5M */
4665 /* TODO */
4666 if (!stats->bHwError) {
4667 u8 ret_rate;
4668
4669 ret_rate = HwRateToMRate90(driver_info->RxHT,
4670 driver_info->RxRate);
4671 if (ret_rate == 0xff) {
4672 /* Abnormal Case: Receive CRC OK packet with Rx
4673 * descriptor indicating non supported rate.
4674 * Special Error Handling here
4675 */
4676
4677 stats->bHwError = 1;
4678 /* Set 1M rate by default */
4679 stats->rate = MGN_1M;
4680 } else {
4681 stats->rate = ret_rate;
4682 }
4683 } else {
4684 stats->rate = 0x02;
4685 }
4686
4687 stats->bShortPreamble = driver_info->SPLCP;
4688
4689
4690 UpdateReceivedRateHistogramStatistics8190(dev, stats);
4691
4692 stats->bIsAMPDU = (driver_info->PartAggr == 1);
4693 stats->bFirstMPDU = (driver_info->PartAggr == 1) &&
4694 (driver_info->FirstAGGR == 1);
4695 stats->TimeStampLow = driver_info->TSFL;
4696
4697 UpdateRxPktTimeStamp8190(dev, stats);
4698
4699 /* Rx A-MPDU */
4700 if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1)
4701 RT_TRACE(COMP_RXDESC,
4702 "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n",
4703 driver_info->FirstAGGR, driver_info->PartAggr);
4704
4705 }
4706
4707 skb_pull(skb, sizeof(rx_desc_819x_usb));
4708 /* Get Total offset of MPDU Frame Body */
4709 if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) {
4710 stats->bShift = 1;
4711 skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
4712 }
4713
4714 if (driver_info) {
4715 stats->RxIs40MHzPacket = driver_info->BW;
4716 TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
4717 }
4718 }
4719
4720 static void rtl8192_rx_nomal(struct sk_buff *skb)
4721 {
4722 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4723 struct net_device *dev = info->dev;
4724 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
4725 struct ieee80211_rx_stats stats = {
4726 .signal = 0,
4727 .noise = -98,
4728 .rate = 0,
4729 .freq = IEEE80211_24GHZ_BAND,
4730 };
4731 u32 rx_pkt_len = 0;
4732 struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL;
4733 bool unicast_packet = false;
4734
4735 /* 20 is for ps-poll */
4736 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4737 /* first packet should not contain Rx aggregation header */
4738 query_rxdesc_status(skb, &stats, false);
4739 /* TODO */
4740 /* hardware related info */
4741 /* Process the MPDU received */
4742 skb_trim(skb, skb->len - 4/*sCrcLng*/);
4743
4744 rx_pkt_len = skb->len;
4745 ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data;
4746 unicast_packet = false;
4747 if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
4748 /* TODO */
4749 } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) {
4750 /* TODO */
4751 } else {
4752 /* unicast packet */
4753 unicast_packet = true;
4754 }
4755
4756 if (!ieee80211_rx(priv->ieee80211, skb, &stats)) {
4757 dev_kfree_skb_any(skb);
4758 } else {
4759 priv->stats.rxoktotal++;
4760 if (unicast_packet)
4761 priv->stats.rxbytesunicast += rx_pkt_len;
4762 }
4763 } else {
4764 priv->stats.rxurberr++;
4765 netdev_dbg(dev, "actual_length: %d\n", skb->len);
4766 dev_kfree_skb_any(skb);
4767 }
4768
4769 }
4770
4771 static void rtl819xusb_process_received_packet(
4772 struct net_device *dev,
4773 struct ieee80211_rx_stats *pstats)
4774 {
4775 u8 *frame;
4776 u16 frame_len = 0;
4777 struct r8192_priv *priv = ieee80211_priv(dev);
4778
4779 /* Get shifted bytes of Starting address of 802.11 header. */
4780 pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats);
4781 frame = pstats->virtual_address;
4782 frame_len = pstats->packetlength;
4783 #ifdef TODO /* about HCT */
4784 if (!Adapter->bInHctTest)
4785 CountRxErrStatistics(Adapter, pRfd);
4786 #endif
4787 #ifdef ENABLE_PS /* for adding ps function in future */
4788 RT_RF_POWER_STATE rtState;
4789 /* When RF is off, we should not count the packet for hw/sw synchronize
4790 * reason, ie. there may be a duration while sw switch is changed and
4791 * hw switch is being changed.
4792 */
4793 Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE,
4794 (u8 *)(&rtState));
4795 if (rtState == eRfOff)
4796 return;
4797 #endif
4798 priv->stats.rxframgment++;
4799
4800 #ifdef TODO
4801 RmMonitorSignalStrength(Adapter, pRfd);
4802 #endif
4803 /* We have to release RFD and return if rx pkt is cmd pkt. */
4804 if (rtl819xusb_rx_command_packet(dev, pstats))
4805 return;
4806
4807 #ifdef SW_CRC_CHECK
4808 SwCrcCheck();
4809 #endif
4810
4811
4812 }
4813
4814 static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
4815 struct ieee80211_rx_stats *stats)
4816 {
4817 rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
4818
4819 /* Get Rx Descriptor Information */
4820 stats->virtual_address = (u8 *)skb->data;
4821 stats->Length = desc->Length;
4822 stats->RxDrvInfoSize = 0;
4823 stats->RxBufShift = 0;
4824 stats->packetlength = stats->Length - scrclng;
4825 stats->fraglength = stats->packetlength;
4826 stats->fragoffset = 0;
4827 stats->ntotalfrag = 1;
4828 }
4829
4830
4831 static void rtl8192_rx_cmd(struct sk_buff *skb)
4832 {
4833 struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
4834 struct net_device *dev = info->dev;
4835 /* TODO */
4836 struct ieee80211_rx_stats stats = {
4837 .signal = 0,
4838 .noise = -98,
4839 .rate = 0,
4840 .freq = IEEE80211_24GHZ_BAND,
4841 };
4842
4843 if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) {
4844
4845 query_rx_cmdpkt_desc_status(skb, &stats);
4846 /* prfd->queue_id = 1; */
4847
4848 /* Process the command packet received. */
4849
4850 rtl819xusb_process_received_packet(dev, &stats);
4851
4852 dev_kfree_skb_any(skb);
4853 }
4854 }
4855
4856 static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv)
4857 {
4858 struct sk_buff *skb;
4859 struct rtl8192_rx_info *info;
4860
4861 while (NULL != (skb = skb_dequeue(&priv->skb_queue))) {
4862 info = (struct rtl8192_rx_info *)skb->cb;
4863 switch (info->out_pipe) {
4864 /* Nomal packet pipe */
4865 case 3:
4866 priv->IrpPendingCount--;
4867 rtl8192_rx_nomal(skb);
4868 break;
4869
4870 /* Command packet pipe */
4871 case 9:
4872 RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n",
4873 info->out_pipe);
4874
4875 rtl8192_rx_cmd(skb);
4876 break;
4877
4878 default: /* should never get here! */
4879 RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n",
4880 info->out_pipe);
4881 dev_kfree_skb(skb);
4882 break;
4883
4884 }
4885 }
4886 }
4887
4888 static const struct net_device_ops rtl8192_netdev_ops = {
4889 .ndo_open = rtl8192_open,
4890 .ndo_stop = rtl8192_close,
4891 .ndo_get_stats = rtl8192_stats,
4892 .ndo_tx_timeout = tx_timeout,
4893 .ndo_do_ioctl = rtl8192_ioctl,
4894 .ndo_set_rx_mode = r8192_set_multicast,
4895 .ndo_set_mac_address = r8192_set_mac_adr,
4896 .ndo_validate_addr = eth_validate_addr,
4897 .ndo_change_mtu = eth_change_mtu,
4898 .ndo_start_xmit = ieee80211_xmit,
4899 };
4900
4901
4902 /****************************************************************************
4903 ---------------------------- USB_STUFF---------------------------
4904 *****************************************************************************/
4905
4906 static int rtl8192_usb_probe(struct usb_interface *intf,
4907 const struct usb_device_id *id)
4908 {
4909 struct net_device *dev = NULL;
4910 struct r8192_priv *priv = NULL;
4911 struct usb_device *udev = interface_to_usbdev(intf);
4912 int ret;
4913
4914 RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
4915
4916 dev = alloc_ieee80211(sizeof(struct r8192_priv));
4917 if (dev == NULL)
4918 return -ENOMEM;
4919
4920 usb_set_intfdata(intf, dev);
4921 SET_NETDEV_DEV(dev, &intf->dev);
4922 priv = ieee80211_priv(dev);
4923 priv->ieee80211 = netdev_priv(dev);
4924 priv->udev = udev;
4925
4926 dev->netdev_ops = &rtl8192_netdev_ops;
4927
4928 dev->wireless_handlers =
4929 (struct iw_handler_def *)&r8192_wx_handlers_def;
4930
4931 dev->type = ARPHRD_ETHER;
4932
4933 dev->watchdog_timeo = HZ * 3;
4934
4935 if (dev_alloc_name(dev, ifname) < 0) {
4936 RT_TRACE(COMP_INIT,
4937 "Oops: devname already taken! Trying wlan%%d...\n");
4938 ifname = "wlan%d";
4939 dev_alloc_name(dev, ifname);
4940 }
4941
4942 RT_TRACE(COMP_INIT, "Driver probe completed1\n");
4943 if (rtl8192_init(dev) != 0) {
4944 RT_TRACE(COMP_ERR, "Initialization failed");
4945 ret = -ENODEV;
4946 goto fail;
4947 }
4948 netif_carrier_off(dev);
4949 netif_stop_queue(dev);
4950
4951 ret = register_netdev(dev);
4952 if (ret)
4953 goto fail2;
4954
4955 RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name);
4956 rtl8192_proc_init_one(dev);
4957
4958
4959 RT_TRACE(COMP_INIT, "Driver probe completed\n");
4960 return 0;
4961
4962 fail2:
4963 rtl8192_down(dev);
4964 kfree(priv->pFirmware);
4965 priv->pFirmware = NULL;
4966 rtl8192_usb_deleteendpoints(dev);
4967 destroy_workqueue(priv->priv_wq);
4968 mdelay(10);
4969 fail:
4970 free_ieee80211(dev);
4971
4972 RT_TRACE(COMP_ERR, "wlan driver load failed\n");
4973 return ret;
4974 }
4975
4976 /* detach all the work and timer structure declared or inititialize
4977 * in r8192U_init function.
4978 */
4979 static void rtl8192_cancel_deferred_work(struct r8192_priv *priv)
4980 {
4981
4982 cancel_work_sync(&priv->reset_wq);
4983 cancel_delayed_work(&priv->watch_dog_wq);
4984 cancel_delayed_work(&priv->update_beacon_wq);
4985 cancel_work_sync(&priv->qos_activate);
4986 }
4987
4988
4989 static void rtl8192_usb_disconnect(struct usb_interface *intf)
4990 {
4991 struct net_device *dev = usb_get_intfdata(intf);
4992 struct r8192_priv *priv = ieee80211_priv(dev);
4993
4994 if (dev) {
4995 unregister_netdev(dev);
4996
4997 RT_TRACE(COMP_DOWN,
4998 "=============>wlan driver to be removed\n");
4999 rtl8192_proc_remove_one(dev);
5000
5001 rtl8192_down(dev);
5002 kfree(priv->pFirmware);
5003 priv->pFirmware = NULL;
5004 rtl8192_usb_deleteendpoints(dev);
5005 destroy_workqueue(priv->priv_wq);
5006 mdelay(10);
5007 }
5008 free_ieee80211(dev);
5009 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
5010 }
5011
5012 static int __init rtl8192_usb_module_init(void)
5013 {
5014 int ret;
5015
5016 #ifdef CONFIG_IEEE80211_DEBUG
5017 ret = ieee80211_debug_init();
5018 if (ret) {
5019 pr_err("ieee80211_debug_init() failed %d\n", ret);
5020 return ret;
5021 }
5022 #endif
5023 ret = ieee80211_crypto_init();
5024 if (ret) {
5025 pr_err("ieee80211_crypto_init() failed %d\n", ret);
5026 return ret;
5027 }
5028
5029 ret = ieee80211_crypto_tkip_init();
5030 if (ret) {
5031 pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret);
5032 return ret;
5033 }
5034
5035 ret = ieee80211_crypto_ccmp_init();
5036 if (ret) {
5037 pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret);
5038 return ret;
5039 }
5040
5041 ret = ieee80211_crypto_wep_init();
5042 if (ret) {
5043 pr_err("ieee80211_crypto_wep_init() failed %d\n", ret);
5044 return ret;
5045 }
5046
5047 pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n");
5048 pr_info("Copyright (c) 2007-2008, Realsil Wlan\n");
5049 RT_TRACE(COMP_INIT, "Initializing module");
5050 RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT);
5051 rtl8192_proc_module_init();
5052 return usb_register(&rtl8192_usb_driver);
5053 }
5054
5055
5056 static void __exit rtl8192_usb_module_exit(void)
5057 {
5058 usb_deregister(&rtl8192_usb_driver);
5059
5060 RT_TRACE(COMP_DOWN, "Exiting");
5061 }
5062
5063
5064 void rtl8192_try_wake_queue(struct net_device *dev, int pri)
5065 {
5066 unsigned long flags;
5067 short enough_desc;
5068 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5069
5070 spin_lock_irqsave(&priv->tx_lock, flags);
5071 enough_desc = check_nic_enough_desc(dev, pri);
5072 spin_unlock_irqrestore(&priv->tx_lock, flags);
5073
5074 if (enough_desc)
5075 ieee80211_wake_queue(priv->ieee80211);
5076 }
5077
5078 void EnableHWSecurityConfig8192(struct net_device *dev)
5079 {
5080 u8 SECR_value = 0x0;
5081 struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
5082 struct ieee80211_device *ieee = priv->ieee80211;
5083
5084 SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
5085 if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2)) {
5086 SECR_value |= SCR_RxUseDK;
5087 SECR_value |= SCR_TxUseDK;
5088 } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) {
5089 SECR_value |= SCR_RxUseDK;
5090 SECR_value |= SCR_TxUseDK;
5091 }
5092 /* add HWSec active enable here.
5093 * default using hwsec. when peer AP is in N mode only and
5094 * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates
5095 * it), use software security. when peer AP is in b,g,n mode mixed and
5096 * pairwise_key_type is none_aes, use g mode hw security.
5097 */
5098
5099 ieee->hwsec_active = 1;
5100
5101 /* add hwsec_support flag to totol control hw_sec on/off */
5102 if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
5103 ieee->hwsec_active = 0;
5104 SECR_value &= ~SCR_RxDecEnable;
5105 }
5106 RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
5107 __func__, ieee->hwsec_active, ieee->pairwise_key_type,
5108 SECR_value);
5109 write_nic_byte(dev, SECR, SECR_value);
5110 }
5111
5112
5113 void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
5114 u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
5115 {
5116 u32 TargetCommand = 0;
5117 u32 TargetContent = 0;
5118 u16 usConfig = 0;
5119 u8 i;
5120
5121 if (EntryNo >= TOTAL_CAM_ENTRY)
5122 RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
5123
5124 RT_TRACE(COMP_SEC,
5125 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n",
5126 dev, EntryNo, KeyIndex, KeyType, MacAddr);
5127
5128 if (DefaultKey)
5129 usConfig |= BIT15 | (KeyType << 2);
5130 else
5131 usConfig |= BIT15 | (KeyType << 2) | KeyIndex;
5132
5133
5134 for (i = 0; i < CAM_CONTENT_COUNT; i++) {
5135 TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
5136 TargetCommand |= BIT31 | BIT16;
5137
5138 if (i == 0) { /* MAC|Config */
5139 TargetContent = (u32)(*(MacAddr + 0)) << 16 |
5140 (u32)(*(MacAddr + 1)) << 24 |
5141 (u32)usConfig;
5142
5143 write_nic_dword(dev, WCAMI, TargetContent);
5144 write_nic_dword(dev, RWCAM, TargetCommand);
5145 } else if (i == 1) { /* MAC */
5146 TargetContent = (u32)(*(MacAddr + 2)) |
5147 (u32)(*(MacAddr + 3)) << 8 |
5148 (u32)(*(MacAddr + 4)) << 16 |
5149 (u32)(*(MacAddr + 5)) << 24;
5150 write_nic_dword(dev, WCAMI, TargetContent);
5151 write_nic_dword(dev, RWCAM, TargetCommand);
5152 } else {
5153 /* Key Material */
5154 if (KeyContent != NULL) {
5155 write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2)));
5156 write_nic_dword(dev, RWCAM, TargetCommand);
5157 }
5158 }
5159 }
5160
5161 }
5162
5163 /***************************************************************************
5164 ------------------- module init / exit stubs ----------------
5165 ****************************************************************************/
5166 module_init(rtl8192_usb_module_init);
5167 module_exit(rtl8192_usb_module_exit);
Linux kernel - Deliverables
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