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1/******************************************************************************
2 *
3 * Copyright(c) 2009-2010 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
25 *
26 * Larry Finger <Larry.Finger@lwfinger.net>
27 *
28 *****************************************************************************/
29
30#include "../wifi.h"
31#include "../pci.h"
32#include "../base.h"
33#include "reg.h"
34#include "def.h"
35#include "phy.h"
36#include "trx.h"
37#include "led.h"
38
39static u8 _rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
40{
41 __le16 fc = rtl_get_fc(skb);
42
43 if (unlikely(ieee80211_is_beacon(fc)))
44 return QSLT_BEACON;
45 if (ieee80211_is_mgmt(fc))
46 return QSLT_MGNT;
47
48 return skb->priority;
49}
50
51static int _rtl92ce_rate_mapping(bool isht, u8 desc_rate, bool first_ampdu)
52{
53 int rate_idx;
54
55 if (first_ampdu) {
56 if (false == isht) {
57 switch (desc_rate) {
58 case DESC92C_RATE1M:
59 rate_idx = 0;
60 break;
61 case DESC92C_RATE2M:
62 rate_idx = 1;
63 break;
64 case DESC92C_RATE5_5M:
65 rate_idx = 2;
66 break;
67 case DESC92C_RATE11M:
68 rate_idx = 3;
69 break;
70 case DESC92C_RATE6M:
71 rate_idx = 4;
72 break;
73 case DESC92C_RATE9M:
74 rate_idx = 5;
75 break;
76 case DESC92C_RATE12M:
77 rate_idx = 6;
78 break;
79 case DESC92C_RATE18M:
80 rate_idx = 7;
81 break;
82 case DESC92C_RATE24M:
83 rate_idx = 8;
84 break;
85 case DESC92C_RATE36M:
86 rate_idx = 9;
87 break;
88 case DESC92C_RATE48M:
89 rate_idx = 10;
90 break;
91 case DESC92C_RATE54M:
92 rate_idx = 11;
93 break;
94 default:
95 rate_idx = 0;
96 break;
97 }
98 } else {
99 rate_idx = 11;
100 }
101
102 return rate_idx;
103 }
104
105 switch (desc_rate) {
106 case DESC92C_RATE1M:
107 rate_idx = 0;
108 break;
109 case DESC92C_RATE2M:
110 rate_idx = 1;
111 break;
112 case DESC92C_RATE5_5M:
113 rate_idx = 2;
114 break;
115 case DESC92C_RATE11M:
116 rate_idx = 3;
117 break;
118 case DESC92C_RATE6M:
119 rate_idx = 4;
120 break;
121 case DESC92C_RATE9M:
122 rate_idx = 5;
123 break;
124 case DESC92C_RATE12M:
125 rate_idx = 6;
126 break;
127 case DESC92C_RATE18M:
128 rate_idx = 7;
129 break;
130 case DESC92C_RATE24M:
131 rate_idx = 8;
132 break;
133 case DESC92C_RATE36M:
134 rate_idx = 9;
135 break;
136 case DESC92C_RATE48M:
137 rate_idx = 10;
138 break;
139 case DESC92C_RATE54M:
140 rate_idx = 11;
141 break;
142 default:
143 rate_idx = 11;
144 break;
145 }
146 return rate_idx;
147}
148
149static u8 _rtl92c_query_rxpwrpercentage(char antpower)
150{
151 if ((antpower <= -100) || (antpower >= 20))
152 return 0;
153 else if (antpower >= 0)
154 return 100;
155 else
156 return 100 + antpower;
157}
158
159static u8 _rtl92c_evm_db_to_percentage(char value)
160{
161 char ret_val;
162 ret_val = value;
163
164 if (ret_val >= 0)
165 ret_val = 0;
166
167 if (ret_val <= -33)
168 ret_val = -33;
169
170 ret_val = 0 - ret_val;
171 ret_val *= 3;
172
173 if (ret_val == 99)
174 ret_val = 100;
175
176 return ret_val;
177}
178
179static long _rtl92ce_translate_todbm(struct ieee80211_hw *hw,
180 u8 signal_strength_index)
181{
182 long signal_power;
183
184 signal_power = (long)((signal_strength_index + 1) >> 1);
185 signal_power -= 95;
186 return signal_power;
187}
188
189static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
190 long currsig)
191{
192 long retsig;
193
194 if (currsig >= 61 && currsig <= 100)
195 retsig = 90 + ((currsig - 60) / 4);
196 else if (currsig >= 41 && currsig <= 60)
197 retsig = 78 + ((currsig - 40) / 2);
198 else if (currsig >= 31 && currsig <= 40)
199 retsig = 66 + (currsig - 30);
200 else if (currsig >= 21 && currsig <= 30)
201 retsig = 54 + (currsig - 20);
202 else if (currsig >= 5 && currsig <= 20)
203 retsig = 42 + (((currsig - 5) * 2) / 3);
204 else if (currsig == 4)
205 retsig = 36;
206 else if (currsig == 3)
207 retsig = 27;
208 else if (currsig == 2)
209 retsig = 18;
210 else if (currsig == 1)
211 retsig = 9;
212 else
213 retsig = currsig;
214
215 return retsig;
216}
217
218static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
219 struct rtl_stats *pstats,
220 struct rx_desc_92c *pdesc,
221 struct rx_fwinfo_92c *p_drvinfo,
222 bool packet_match_bssid,
223 bool packet_toself,
224 bool packet_beacon)
225{
226 struct rtl_priv *rtlpriv = rtl_priv(hw);
227 struct phy_sts_cck_8192s_t *cck_buf;
228 s8 rx_pwr_all = 0, rx_pwr[4];
229 u8 evm, pwdb_all, rf_rx_num = 0;
230 u8 i, max_spatial_stream;
231 u32 rssi, total_rssi = 0;
232 bool in_powersavemode = false;
233 bool is_cck_rate;
234
235 is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
236 pstats->packet_matchbssid = packet_match_bssid;
237 pstats->packet_toself = packet_toself;
238 pstats->is_cck = is_cck_rate;
239 pstats->packet_beacon = packet_beacon;
240 pstats->is_cck = is_cck_rate;
241 pstats->rx_mimo_signalquality[0] = -1;
242 pstats->rx_mimo_signalquality[1] = -1;
243
244 if (is_cck_rate) {
245 u8 report, cck_highpwr;
246 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
247
248 if (!in_powersavemode)
249 cck_highpwr = (u8) rtl_get_bbreg(hw,
250 RFPGA0_XA_HSSIPARAMETER2,
251 BIT(9));
252 else
253 cck_highpwr = false;
254
255 if (!cck_highpwr) {
256 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
257 report = cck_buf->cck_agc_rpt & 0xc0;
258 report = report >> 6;
259 switch (report) {
260 case 0x3:
261 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
262 break;
263 case 0x2:
264 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
265 break;
266 case 0x1:
267 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
268 break;
269 case 0x0:
270 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
271 break;
272 }
273 } else {
274 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
275 report = p_drvinfo->cfosho[0] & 0x60;
276 report = report >> 5;
277 switch (report) {
278 case 0x3:
279 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
280 break;
281 case 0x2:
282 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
283 break;
284 case 0x1:
285 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
286 break;
287 case 0x0:
288 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
289 break;
290 }
291 }
292
293 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
294 pstats->rx_pwdb_all = pwdb_all;
295 pstats->recvsignalpower = rx_pwr_all;
296
297 if (packet_match_bssid) {
298 u8 sq;
299 if (pstats->rx_pwdb_all > 40)
300 sq = 100;
301 else {
302 sq = cck_buf->sq_rpt;
303 if (sq > 64)
304 sq = 0;
305 else if (sq < 20)
306 sq = 100;
307 else
308 sq = ((64 - sq) * 100) / 44;
309 }
310
311 pstats->signalquality = sq;
312 pstats->rx_mimo_signalquality[0] = sq;
313 pstats->rx_mimo_signalquality[1] = -1;
314 }
315 } else {
316 rtlpriv->dm.rfpath_rxenable[0] =
317 rtlpriv->dm.rfpath_rxenable[1] = true;
318 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
319 if (rtlpriv->dm.rfpath_rxenable[i])
320 rf_rx_num++;
321
322 rx_pwr[i] =
323 ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
324 rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
325 total_rssi += rssi;
326 rtlpriv->stats.rx_snr_db[i] =
327 (long)(p_drvinfo->rxsnr[i] / 2);
328
329 if (packet_match_bssid)
330 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
331 }
332
333 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
334 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
335 pstats->rx_pwdb_all = pwdb_all;
336 pstats->rxpower = rx_pwr_all;
337 pstats->recvsignalpower = rx_pwr_all;
338
339 if (pdesc->rxht && pdesc->rxmcs >= DESC92C_RATEMCS8 &&
340 pdesc->rxmcs <= DESC92C_RATEMCS15)
341 max_spatial_stream = 2;
342 else
343 max_spatial_stream = 1;
344
345 for (i = 0; i < max_spatial_stream; i++) {
346 evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
347
348 if (packet_match_bssid) {
349 if (i == 0)
350 pstats->signalquality =
351 (u8) (evm & 0xff);
352 pstats->rx_mimo_signalquality[i] =
353 (u8) (evm & 0xff);
354 }
355 }
356 }
357
358 if (is_cck_rate)
359 pstats->signalstrength =
360 (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
361 else if (rf_rx_num != 0)
362 pstats->signalstrength =
363 (u8) (_rtl92ce_signal_scale_mapping
364 (hw, total_rssi /= rf_rx_num));
365}
366
367static void _rtl92ce_process_ui_rssi(struct ieee80211_hw *hw,
368 struct rtl_stats *pstats)
369{
370 struct rtl_priv *rtlpriv = rtl_priv(hw);
371 struct rtl_phy *rtlphy = &(rtlpriv->phy);
372 u8 rfpath;
373 u32 last_rssi, tmpval;
374
375 if (pstats->packet_toself || pstats->packet_beacon) {
376 rtlpriv->stats.rssi_calculate_cnt++;
377
378 if (rtlpriv->stats.ui_rssi.total_num++ >=
379 PHY_RSSI_SLID_WIN_MAX) {
380
381 rtlpriv->stats.ui_rssi.total_num =
382 PHY_RSSI_SLID_WIN_MAX;
383 last_rssi =
384 rtlpriv->stats.ui_rssi.elements[rtlpriv->
385 stats.ui_rssi.index];
386 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
387 }
388
389 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
390 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
391 index++] =
392 pstats->signalstrength;
393
394 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
395 rtlpriv->stats.ui_rssi.index = 0;
396
397 tmpval = rtlpriv->stats.ui_rssi.total_val /
398 rtlpriv->stats.ui_rssi.total_num;
399 rtlpriv->stats.signal_strength =
400 _rtl92ce_translate_todbm(hw, (u8) tmpval);
401 pstats->rssi = rtlpriv->stats.signal_strength;
402 }
403
404 if (!pstats->is_cck && pstats->packet_toself) {
405 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
406 rfpath++) {
407 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
408 rtlpriv->stats.rx_rssi_percentage[rfpath] =
409 pstats->rx_mimo_signalstrength[rfpath];
410
411 }
412
413 if (pstats->rx_mimo_signalstrength[rfpath] >
414 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
415 rtlpriv->stats.rx_rssi_percentage[rfpath] =
416 ((rtlpriv->stats.
417 rx_rssi_percentage[rfpath] *
418 (RX_SMOOTH_FACTOR - 1)) +
419 (pstats->rx_mimo_signalstrength[rfpath])) /
420 (RX_SMOOTH_FACTOR);
421
422 rtlpriv->stats.rx_rssi_percentage[rfpath] =
423 rtlpriv->stats.rx_rssi_percentage[rfpath] +
424 1;
425 } else {
426 rtlpriv->stats.rx_rssi_percentage[rfpath] =
427 ((rtlpriv->stats.
428 rx_rssi_percentage[rfpath] *
429 (RX_SMOOTH_FACTOR - 1)) +
430 (pstats->rx_mimo_signalstrength[rfpath])) /
431 (RX_SMOOTH_FACTOR);
432 }
433
434 }
435 }
436}
437
438static void _rtl92ce_update_rxsignalstatistics(struct ieee80211_hw *hw,
439 struct rtl_stats *pstats)
440{
441 struct rtl_priv *rtlpriv = rtl_priv(hw);
442 int weighting = 0;
443
444 if (rtlpriv->stats.recv_signal_power == 0)
445 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
446
447 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
448 weighting = 5;
449
450 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
451 weighting = (-5);
452
453 rtlpriv->stats.recv_signal_power =
454 (rtlpriv->stats.recv_signal_power * 5 +
455 pstats->recvsignalpower + weighting) / 6;
456}
457
458static void _rtl92ce_process_pwdb(struct ieee80211_hw *hw,
459 struct rtl_stats *pstats)
460{
461 struct rtl_priv *rtlpriv = rtl_priv(hw);
462 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
463 long undecorated_smoothed_pwdb;
464
465 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
466 return;
467 } else {
468 undecorated_smoothed_pwdb =
469 rtlpriv->dm.undecorated_smoothed_pwdb;
470 }
471
472 if (pstats->packet_toself || pstats->packet_beacon) {
473 if (undecorated_smoothed_pwdb < 0)
474 undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
475
476 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
477 undecorated_smoothed_pwdb =
478 (((undecorated_smoothed_pwdb) *
479 (RX_SMOOTH_FACTOR - 1)) +
480 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
481
482 undecorated_smoothed_pwdb = undecorated_smoothed_pwdb
483 + 1;
484 } else {
485 undecorated_smoothed_pwdb =
486 (((undecorated_smoothed_pwdb) *
487 (RX_SMOOTH_FACTOR - 1)) +
488 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
489 }
490
491 rtlpriv->dm.undecorated_smoothed_pwdb =
492 undecorated_smoothed_pwdb;
493 _rtl92ce_update_rxsignalstatistics(hw, pstats);
494 }
495}
496
497static void _rtl92ce_process_ui_link_quality(struct ieee80211_hw *hw,
498 struct rtl_stats *pstats)
499{
500 struct rtl_priv *rtlpriv = rtl_priv(hw);
501 u32 last_evm, n_spatialstream, tmpval;
502
503 if (pstats->signalquality != 0) {
504 if (pstats->packet_toself || pstats->packet_beacon) {
505
506 if (rtlpriv->stats.ui_link_quality.total_num++ >=
507 PHY_LINKQUALITY_SLID_WIN_MAX) {
508 rtlpriv->stats.ui_link_quality.total_num =
509 PHY_LINKQUALITY_SLID_WIN_MAX;
510 last_evm =
511 rtlpriv->stats.
512 ui_link_quality.elements[rtlpriv->
513 stats.ui_link_quality.
514 index];
515 rtlpriv->stats.ui_link_quality.total_val -=
516 last_evm;
517 }
518
519 rtlpriv->stats.ui_link_quality.total_val +=
520 pstats->signalquality;
521 rtlpriv->stats.ui_link_quality.elements[rtlpriv->stats.
522 ui_link_quality.
523 index++] =
524 pstats->signalquality;
525
526 if (rtlpriv->stats.ui_link_quality.index >=
527 PHY_LINKQUALITY_SLID_WIN_MAX)
528 rtlpriv->stats.ui_link_quality.index = 0;
529
530 tmpval = rtlpriv->stats.ui_link_quality.total_val /
531 rtlpriv->stats.ui_link_quality.total_num;
532 rtlpriv->stats.signal_quality = tmpval;
533
534 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
535
536 for (n_spatialstream = 0; n_spatialstream < 2;
537 n_spatialstream++) {
538 if (pstats->
539 rx_mimo_signalquality[n_spatialstream] !=
540 -1) {
541 if (rtlpriv->stats.
542 rx_evm_percentage[n_spatialstream]
543 == 0) {
544 rtlpriv->stats.
545 rx_evm_percentage
546 [n_spatialstream] =
547 pstats->rx_mimo_signalquality
548 [n_spatialstream];
549 }
550
551 rtlpriv->stats.
552 rx_evm_percentage[n_spatialstream] =
553 ((rtlpriv->
554 stats.rx_evm_percentage
555 [n_spatialstream] *
556 (RX_SMOOTH_FACTOR - 1)) +
557 (pstats->
558 rx_mimo_signalquality
559 [n_spatialstream] * 1)) /
560 (RX_SMOOTH_FACTOR);
561 }
562 }
563 }
564 } else {
565 ;
566 }
567}
568
569static void _rtl92ce_process_phyinfo(struct ieee80211_hw *hw,
570 u8 *buffer,
571 struct rtl_stats *pcurrent_stats)
572{
573
574 if (!pcurrent_stats->packet_matchbssid &&
575 !pcurrent_stats->packet_beacon)
576 return;
577
578 _rtl92ce_process_ui_rssi(hw, pcurrent_stats);
579 _rtl92ce_process_pwdb(hw, pcurrent_stats);
580 _rtl92ce_process_ui_link_quality(hw, pcurrent_stats);
581}
582
583static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
584 struct sk_buff *skb,
585 struct rtl_stats *pstats,
586 struct rx_desc_92c *pdesc,
587 struct rx_fwinfo_92c *p_drvinfo)
588{
589 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
590 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
591
592 struct ieee80211_hdr *hdr;
593 u8 *tmp_buf;
594 u8 *praddr;
595 __le16 fc;
596 u16 type, c_fc;
597 bool packet_matchbssid, packet_toself, packet_beacon;
598
599 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
600
601 hdr = (struct ieee80211_hdr *)tmp_buf;
602 fc = hdr->frame_control;
603 c_fc = le16_to_cpu(fc);
604 type = WLAN_FC_GET_TYPE(fc);
605 praddr = hdr->addr1;
606
607 packet_matchbssid =
608 ((IEEE80211_FTYPE_CTL != type) &&
609 (!compare_ether_addr(mac->bssid,
610 (c_fc & IEEE80211_FCTL_TODS) ?
611 hdr->addr1 : (c_fc & IEEE80211_FCTL_FROMDS) ?
612 hdr->addr2 : hdr->addr3)) &&
613 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
614
615 packet_toself = packet_matchbssid &&
616 (!compare_ether_addr(praddr, rtlefuse->dev_addr));
617
618 if (ieee80211_is_beacon(fc))
619 packet_beacon = true;
620
621 _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
622 packet_matchbssid, packet_toself,
623 packet_beacon);
624
625 _rtl92ce_process_phyinfo(hw, tmp_buf, pstats);
626}
627
628bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
629 struct rtl_stats *stats,
630 struct ieee80211_rx_status *rx_status,
631 u8 *p_desc, struct sk_buff *skb)
632{
633 struct rx_fwinfo_92c *p_drvinfo;
634 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
635
636 u32 phystatus = GET_RX_DESC_PHYST(pdesc);
637 stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
638 stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
639 RX_DRV_INFO_SIZE_UNIT;
640 stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
641 stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
642 stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
643 stats->hwerror = (stats->crc | stats->icv);
644 stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
645 stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
646 stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
647 stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
648 stats->isampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
649 && (GET_RX_DESC_FAGGR(pdesc) == 1));
650 stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
651 stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
652
653 rx_status->freq = hw->conf.channel->center_freq;
654 rx_status->band = hw->conf.channel->band;
655
656 if (GET_RX_DESC_CRC32(pdesc))
657 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
658
659 if (!GET_RX_DESC_SWDEC(pdesc))
660 rx_status->flag |= RX_FLAG_DECRYPTED;
661
662 if (GET_RX_DESC_BW(pdesc))
663 rx_status->flag |= RX_FLAG_40MHZ;
664
665 if (GET_RX_DESC_RXHT(pdesc))
666 rx_status->flag |= RX_FLAG_HT;
667
668 rx_status->flag |= RX_FLAG_MACTIME_MPDU;
669
670 if (stats->decrypted)
671 rx_status->flag |= RX_FLAG_DECRYPTED;
672
673 rx_status->rate_idx = _rtl92ce_rate_mapping((bool)
674 GET_RX_DESC_RXHT(pdesc),
675 (u8)
676 GET_RX_DESC_RXMCS(pdesc),
677 (bool)
678 GET_RX_DESC_PAGGR(pdesc));
679
680 rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
681 if (phystatus) {
682 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
683 stats->rx_bufshift);
684
685 _rtl92ce_translate_rx_signal_stuff(hw,
686 skb, stats, pdesc,
687 p_drvinfo);
688 }
689
690 /*rx_status->qual = stats->signal; */
691 rx_status->signal = stats->rssi + 10;
692 /*rx_status->noise = -stats->noise; */
693
694 return true;
695}
696
697void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
698 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
699 struct ieee80211_tx_info *info, struct sk_buff *skb,
700 u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
701{
702 struct rtl_priv *rtlpriv = rtl_priv(hw);
703 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
704 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
705 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
706 bool defaultadapter = true;
707 struct ieee80211_sta *sta;
708 u8 *pdesc = (u8 *) pdesc_tx;
709 u16 seq_number;
710 __le16 fc = hdr->frame_control;
711 u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
712 bool firstseg = ((hdr->seq_ctrl &
713 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
714
715 bool lastseg = ((hdr->frame_control &
716 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
717
718 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
719 skb->data, skb->len,
720 PCI_DMA_TODEVICE);
721 u8 bw_40 = 0;
722
723 rcu_read_lock();
724 sta = get_sta(hw, mac->vif, mac->bssid);
725 if (mac->opmode == NL80211_IFTYPE_STATION) {
726 bw_40 = mac->bw_40;
727 } else if (mac->opmode == NL80211_IFTYPE_AP ||
728 mac->opmode == NL80211_IFTYPE_ADHOC) {
729 if (sta)
730 bw_40 = sta->ht_cap.cap &
731 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
732 }
733
734 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
735
736 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
737
738 CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
739
740 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
741 firstseg = true;
742 lastseg = true;
743 }
744 if (firstseg) {
745 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
746
747 SET_TX_DESC_TX_RATE(pdesc, tcb_desc->hw_rate);
748
749 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
750 SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
751
752 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
753 SET_TX_DESC_AGG_BREAK(pdesc, 1);
754 SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
755 }
756 SET_TX_DESC_SEQ(pdesc, seq_number);
757
758 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc->rts_enable &&
759 !tcb_desc->
760 cts_enable) ? 1 : 0));
761 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
762 ((tcb_desc->rts_enable
763 || tcb_desc->cts_enable) ? 1 : 0));
764 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
765 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
766
767 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc->rts_rate);
768 SET_TX_DESC_RTS_BW(pdesc, 0);
769 SET_TX_DESC_RTS_SC(pdesc, tcb_desc->rts_sc);
770 SET_TX_DESC_RTS_SHORT(pdesc,
771 ((tcb_desc->rts_rate <= DESC92C_RATE54M) ?
772 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
773 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
774
775 if (bw_40) {
776 if (tcb_desc->packet_bw) {
777 SET_TX_DESC_DATA_BW(pdesc, 1);
778 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
779 } else {
780 SET_TX_DESC_DATA_BW(pdesc, 0);
781 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
782 mac->cur_40_prime_sc);
783 }
784 } else {
785 SET_TX_DESC_DATA_BW(pdesc, 0);
786 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
787 }
788
789 SET_TX_DESC_LINIP(pdesc, 0);
790 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
791
792 if (sta) {
793 u8 ampdu_density = sta->ht_cap.ampdu_density;
794 SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
795 }
796
797 if (info->control.hw_key) {
798 struct ieee80211_key_conf *keyconf =
799 info->control.hw_key;
800
801 switch (keyconf->cipher) {
802 case WLAN_CIPHER_SUITE_WEP40:
803 case WLAN_CIPHER_SUITE_WEP104:
804 case WLAN_CIPHER_SUITE_TKIP:
805 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
806 break;
807 case WLAN_CIPHER_SUITE_CCMP:
808 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
809 break;
810 default:
811 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
812 break;
813
814 }
815 }
816
817 SET_TX_DESC_PKT_ID(pdesc, 0);
818 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
819
820 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
821 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
822 SET_TX_DESC_DISABLE_FB(pdesc, 0);
823 SET_TX_DESC_USE_RATE(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
824
825 if (ieee80211_is_data_qos(fc)) {
826 if (mac->rdg_en) {
827 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
828 ("Enable RDG function.\n"));
829 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
830 SET_TX_DESC_HTC(pdesc, 1);
831 }
832 }
833 }
834 rcu_read_unlock();
835
836 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
837 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
838
839 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
840
841 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
842
843 if (rtlpriv->dm.useramask) {
844 SET_TX_DESC_RATE_ID(pdesc, tcb_desc->ratr_index);
845 SET_TX_DESC_MACID(pdesc, tcb_desc->mac_id);
846 } else {
847 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc->ratr_index);
848 SET_TX_DESC_MACID(pdesc, tcb_desc->ratr_index);
849 }
850
851 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
852 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
853 SET_TX_DESC_PKT_ID(pdesc, 8);
854
855 if (!defaultadapter)
856 SET_TX_DESC_QOS(pdesc, 1);
857 }
858
859 SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
860
861 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
862 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
863 SET_TX_DESC_BMC(pdesc, 1);
864 }
865
866 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
867}
868
869void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
870 u8 *pdesc, bool firstseg,
871 bool lastseg, struct sk_buff *skb)
872{
873 struct rtl_priv *rtlpriv = rtl_priv(hw);
874 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
875 u8 fw_queue = QSLT_BEACON;
876
877 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
878 skb->data, skb->len,
879 PCI_DMA_TODEVICE);
880
881 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
882 __le16 fc = hdr->frame_control;
883
884 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
885
886 if (firstseg)
887 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
888
889 SET_TX_DESC_TX_RATE(pdesc, DESC92C_RATE1M);
890
891 SET_TX_DESC_SEQ(pdesc, 0);
892
893 SET_TX_DESC_LINIP(pdesc, 0);
894
895 SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
896
897 SET_TX_DESC_FIRST_SEG(pdesc, 1);
898 SET_TX_DESC_LAST_SEG(pdesc, 1);
899
900 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
901
902 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
903
904 SET_TX_DESC_RATE_ID(pdesc, 7);
905 SET_TX_DESC_MACID(pdesc, 0);
906
907 SET_TX_DESC_OWN(pdesc, 1);
908
909 SET_TX_DESC_PKT_SIZE((u8 *) pdesc, (u16) (skb->len));
910
911 SET_TX_DESC_FIRST_SEG(pdesc, 1);
912 SET_TX_DESC_LAST_SEG(pdesc, 1);
913
914 SET_TX_DESC_OFFSET(pdesc, 0x20);
915
916 SET_TX_DESC_USE_RATE(pdesc, 1);
917
918 if (!ieee80211_is_data_qos(fc)) {
919 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
920 SET_TX_DESC_PKT_ID(pdesc, 8);
921 }
922
923 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
924 "H2C Tx Cmd Content\n",
925 pdesc, TX_DESC_SIZE);
926}
927
928void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
929{
930 if (istx) {
931 switch (desc_name) {
932 case HW_DESC_OWN:
933 wmb();
934 SET_TX_DESC_OWN(pdesc, 1);
935 break;
936 case HW_DESC_TX_NEXTDESC_ADDR:
937 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
938 break;
939 default:
940 RT_ASSERT(false, ("ERR txdesc :%d"
941 " not process\n", desc_name));
942 break;
943 }
944 } else {
945 switch (desc_name) {
946 case HW_DESC_RXOWN:
947 wmb();
948 SET_RX_DESC_OWN(pdesc, 1);
949 break;
950 case HW_DESC_RXBUFF_ADDR:
951 SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
952 break;
953 case HW_DESC_RXPKT_LEN:
954 SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
955 break;
956 case HW_DESC_RXERO:
957 SET_RX_DESC_EOR(pdesc, 1);
958 break;
959 default:
960 RT_ASSERT(false, ("ERR rxdesc :%d "
961 "not process\n", desc_name));
962 break;
963 }
964 }
965}
966
967u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
968{
969 u32 ret = 0;
970
971 if (istx) {
972 switch (desc_name) {
973 case HW_DESC_OWN:
974 ret = GET_TX_DESC_OWN(p_desc);
975 break;
976 case HW_DESC_TXBUFF_ADDR:
977 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
978 break;
979 default:
980 RT_ASSERT(false, ("ERR txdesc :%d "
981 "not process\n", desc_name));
982 break;
983 }
984 } else {
985 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
986 switch (desc_name) {
987 case HW_DESC_OWN:
988 ret = GET_RX_DESC_OWN(pdesc);
989 break;
990 case HW_DESC_RXPKT_LEN:
991 ret = GET_RX_DESC_PKT_LEN(pdesc);
992 break;
993 default:
994 RT_ASSERT(false, ("ERR rxdesc :%d "
995 "not process\n", desc_name));
996 break;
997 }
998 }
999 return ret;
1000}
1001
1002void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
1003{
1004 struct rtl_priv *rtlpriv = rtl_priv(hw);
1005 if (hw_queue == BEACON_QUEUE) {
1006 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
1007 } else {
1008 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
1009 BIT(0) << (hw_queue));
1010 }
1011}
1012