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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 "fw.h"
37#include "trx.h"
38#include "led.h"
39
40static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
41{
42 __le16 fc = rtl_get_fc(skb);
43
44 if (unlikely(ieee80211_is_beacon(fc)))
45 return QSLT_BEACON;
46 if (ieee80211_is_mgmt(fc))
47 return QSLT_MGNT;
48 if (ieee80211_is_nullfunc(fc))
49 return QSLT_HIGH;
50
51 return skb->priority;
52}
53
54static int _rtl92se_rate_mapping(bool isht, u8 desc_rate, bool first_ampdu)
55{
56 int rate_idx = 0;
57
58 if (first_ampdu) {
59 if (false == isht) {
60 switch (desc_rate) {
61 case DESC92S_RATE1M:
62 rate_idx = 0;
63 break;
64 case DESC92S_RATE2M:
65 rate_idx = 1;
66 break;
67 case DESC92S_RATE5_5M:
68 rate_idx = 2;
69 break;
70 case DESC92S_RATE11M:
71 rate_idx = 3;
72 break;
73 case DESC92S_RATE6M:
74 rate_idx = 4;
75 break;
76 case DESC92S_RATE9M:
77 rate_idx = 5;
78 break;
79 case DESC92S_RATE12M:
80 rate_idx = 6;
81 break;
82 case DESC92S_RATE18M:
83 rate_idx = 7;
84 break;
85 case DESC92S_RATE24M:
86 rate_idx = 8;
87 break;
88 case DESC92S_RATE36M:
89 rate_idx = 9;
90 break;
91 case DESC92S_RATE48M:
92 rate_idx = 10;
93 break;
94 case DESC92S_RATE54M:
95 rate_idx = 11;
96 break;
97 default:
98 rate_idx = 0;
99 break;
100 }
101 } else {
102 rate_idx = 11;
103 }
104
105 return rate_idx;
106 }
107
108 switch (desc_rate) {
109 case DESC92S_RATE1M:
110 rate_idx = 0;
111 break;
112 case DESC92S_RATE2M:
113 rate_idx = 1;
114 break;
115 case DESC92S_RATE5_5M:
116 rate_idx = 2;
117 break;
118 case DESC92S_RATE11M:
119 rate_idx = 3;
120 break;
121 case DESC92S_RATE6M:
122 rate_idx = 4;
123 break;
124 case DESC92S_RATE9M:
125 rate_idx = 5;
126 break;
127 case DESC92S_RATE12M:
128 rate_idx = 6;
129 break;
130 case DESC92S_RATE18M:
131 rate_idx = 7;
132 break;
133 case DESC92S_RATE24M:
134 rate_idx = 8;
135 break;
136 case DESC92S_RATE36M:
137 rate_idx = 9;
138 break;
139 case DESC92S_RATE48M:
140 rate_idx = 10;
141 break;
142 case DESC92S_RATE54M:
143 rate_idx = 11;
144 break;
145 default:
146 rate_idx = 11;
147 break;
148 }
149 return rate_idx;
150}
151
152static u8 _rtl92s_query_rxpwrpercentage(char antpower)
153{
154 if ((antpower <= -100) || (antpower >= 20))
155 return 0;
156 else if (antpower >= 0)
157 return 100;
158 else
159 return 100 + antpower;
160}
161
162static u8 _rtl92s_evm_db_to_percentage(char value)
163{
164 char ret_val;
165 ret_val = value;
166
167 if (ret_val >= 0)
168 ret_val = 0;
169
170 if (ret_val <= -33)
171 ret_val = -33;
172
173 ret_val = 0 - ret_val;
174 ret_val *= 3;
175
176 if (ret_val == 99)
177 ret_val = 100;
178
179 return ret_val;
180}
181
182static long _rtl92se_translate_todbm(struct ieee80211_hw *hw,
183 u8 signal_strength_index)
184{
185 long signal_power;
186
187 signal_power = (long)((signal_strength_index + 1) >> 1);
188 signal_power -= 95;
189 return signal_power;
190}
191
192static long _rtl92se_signal_scale_mapping(struct ieee80211_hw *hw,
193 long currsig)
194{
195 long retsig = 0;
196
197 /* Step 1. Scale mapping. */
198 if (currsig > 47)
199 retsig = 100;
200 else if (currsig > 14 && currsig <= 47)
201 retsig = 100 - ((47 - currsig) * 3) / 2;
202 else if (currsig > 2 && currsig <= 14)
203 retsig = 48 - ((14 - currsig) * 15) / 7;
204 else if (currsig >= 0)
205 retsig = currsig * 9 + 1;
206
207 return retsig;
208}
209
210
211static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
212 struct rtl_stats *pstats, u8 *pdesc,
213 struct rx_fwinfo *p_drvinfo,
214 bool packet_match_bssid,
215 bool packet_toself,
216 bool packet_beacon)
217{
218 struct rtl_priv *rtlpriv = rtl_priv(hw);
219 struct phy_sts_cck_8192s_t *cck_buf;
220 s8 rx_pwr_all = 0, rx_pwr[4];
221 u8 rf_rx_num = 0, evm, pwdb_all;
222 u8 i, max_spatial_stream;
223 u32 rssi, total_rssi = 0;
224 bool in_powersavemode = false;
225 bool is_cck_rate;
226
227 is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
228 pstats->packet_matchbssid = packet_match_bssid;
229 pstats->packet_toself = packet_toself;
230 pstats->is_cck = is_cck_rate;
231 pstats->packet_beacon = packet_beacon;
232 pstats->is_cck = is_cck_rate;
233 pstats->rx_mimo_signalquality[0] = -1;
234 pstats->rx_mimo_signalquality[1] = -1;
235
236 if (is_cck_rate) {
237 u8 report, cck_highpwr;
238 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
239
240 if (!in_powersavemode)
241 cck_highpwr = (u8) rtl_get_bbreg(hw,
242 RFPGA0_XA_HSSIPARAMETER2,
243 0x200);
244 else
245 cck_highpwr = false;
246
247 if (!cck_highpwr) {
248 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
249 report = cck_buf->cck_agc_rpt & 0xc0;
250 report = report >> 6;
251 switch (report) {
252 case 0x3:
253 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
254 break;
255 case 0x2:
256 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
257 break;
258 case 0x1:
259 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
260 break;
261 case 0x0:
262 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
263 break;
264 }
265 } else {
266 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
267 report = p_drvinfo->cfosho[0] & 0x60;
268 report = report >> 5;
269 switch (report) {
270 case 0x3:
271 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
272 break;
273 case 0x2:
274 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
275 break;
276 case 0x1:
277 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
278 break;
279 case 0x0:
280 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
281 break;
282 }
283 }
284
285 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
286
287 /* CCK gain is smaller than OFDM/MCS gain, */
288 /* so we add gain diff by experiences, the val is 6 */
289 pwdb_all += 6;
290 if (pwdb_all > 100)
291 pwdb_all = 100;
292 /* modify the offset to make the same gain index with OFDM. */
293 if (pwdb_all > 34 && pwdb_all <= 42)
294 pwdb_all -= 2;
295 else if (pwdb_all > 26 && pwdb_all <= 34)
296 pwdb_all -= 6;
297 else if (pwdb_all > 14 && pwdb_all <= 26)
298 pwdb_all -= 8;
299 else if (pwdb_all > 4 && pwdb_all <= 14)
300 pwdb_all -= 4;
301
302 pstats->rx_pwdb_all = pwdb_all;
303 pstats->recvsignalpower = rx_pwr_all;
304
305 if (packet_match_bssid) {
306 u8 sq;
307 if (pstats->rx_pwdb_all > 40) {
308 sq = 100;
309 } else {
310 sq = cck_buf->sq_rpt;
311 if (sq > 64)
312 sq = 0;
313 else if (sq < 20)
314 sq = 100;
315 else
316 sq = ((64 - sq) * 100) / 44;
317 }
318
319 pstats->signalquality = sq;
320 pstats->rx_mimo_signalquality[0] = sq;
321 pstats->rx_mimo_signalquality[1] = -1;
322 }
323 } else {
324 rtlpriv->dm.rfpath_rxenable[0] =
325 rtlpriv->dm.rfpath_rxenable[1] = true;
326 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
327 if (rtlpriv->dm.rfpath_rxenable[i])
328 rf_rx_num++;
329
330 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
331 0x3f) * 2) - 110;
332 rssi = _rtl92s_query_rxpwrpercentage(rx_pwr[i]);
333 total_rssi += rssi;
334 rtlpriv->stats.rx_snr_db[i] =
335 (long)(p_drvinfo->rxsnr[i] / 2);
336
337 if (packet_match_bssid)
338 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
339 }
340
341 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
342 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
343 pstats->rx_pwdb_all = pwdb_all;
344 pstats->rxpower = rx_pwr_all;
345 pstats->recvsignalpower = rx_pwr_all;
346
347 if (GET_RX_STATUS_DESC_RX_HT(pdesc) &&
348 GET_RX_STATUS_DESC_RX_MCS(pdesc) >= DESC92S_RATEMCS8 &&
349 GET_RX_STATUS_DESC_RX_MCS(pdesc) <= DESC92S_RATEMCS15)
350 max_spatial_stream = 2;
351 else
352 max_spatial_stream = 1;
353
354 for (i = 0; i < max_spatial_stream; i++) {
355 evm = _rtl92s_evm_db_to_percentage(p_drvinfo->rxevm[i]);
356
357 if (packet_match_bssid) {
358 if (i == 0)
359 pstats->signalquality = (u8)(evm &
360 0xff);
361 pstats->rx_mimo_signalquality[i] =
362 (u8) (evm & 0xff);
363 }
364 }
365 }
366
367 if (is_cck_rate)
368 pstats->signalstrength = (u8)(_rtl92se_signal_scale_mapping(hw,
369 pwdb_all));
370 else if (rf_rx_num != 0)
371 pstats->signalstrength = (u8) (_rtl92se_signal_scale_mapping(hw,
372 total_rssi /= rf_rx_num));
373}
374
375static void _rtl92se_process_ui_rssi(struct ieee80211_hw *hw,
376 struct rtl_stats *pstats)
377{
378 struct rtl_priv *rtlpriv = rtl_priv(hw);
379 struct rtl_phy *rtlphy = &(rtlpriv->phy);
380 u8 rfpath;
381 u32 last_rssi, tmpval;
382
383 if (pstats->packet_toself || pstats->packet_beacon) {
384 rtlpriv->stats.rssi_calculate_cnt++;
385
386 if (rtlpriv->stats.ui_rssi.total_num++ >=
387 PHY_RSSI_SLID_WIN_MAX) {
388 rtlpriv->stats.ui_rssi.total_num =
389 PHY_RSSI_SLID_WIN_MAX;
390 last_rssi = rtlpriv->stats.ui_rssi.elements[
391 rtlpriv->stats.ui_rssi.index];
392 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
393 }
394
395 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
396 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.index++]
397 = pstats->signalstrength;
398
399 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
400 rtlpriv->stats.ui_rssi.index = 0;
401
402 tmpval = rtlpriv->stats.ui_rssi.total_val /
403 rtlpriv->stats.ui_rssi.total_num;
404 rtlpriv->stats.signal_strength = _rtl92se_translate_todbm(hw,
405 (u8) tmpval);
406 pstats->rssi = rtlpriv->stats.signal_strength;
407 }
408
409 if (!pstats->is_cck && pstats->packet_toself) {
410 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
411 rfpath++) {
412 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
413 rtlpriv->stats.rx_rssi_percentage[rfpath] =
414 pstats->rx_mimo_signalstrength[rfpath];
415
416 }
417
418 if (pstats->rx_mimo_signalstrength[rfpath] >
419 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
420 rtlpriv->stats.rx_rssi_percentage[rfpath] =
421 ((rtlpriv->stats.rx_rssi_percentage[rfpath]
422 * (RX_SMOOTH_FACTOR - 1)) +
423 (pstats->rx_mimo_signalstrength[rfpath])) /
424 (RX_SMOOTH_FACTOR);
425
426 rtlpriv->stats.rx_rssi_percentage[rfpath] =
427 rtlpriv->stats.rx_rssi_percentage[rfpath]
428 + 1;
429 } else {
430 rtlpriv->stats.rx_rssi_percentage[rfpath] =
431 ((rtlpriv->stats.rx_rssi_percentage[rfpath]
432 * (RX_SMOOTH_FACTOR - 1)) +
433 (pstats->rx_mimo_signalstrength[rfpath])) /
434 (RX_SMOOTH_FACTOR);
435 }
436
437 }
438 }
439}
440
441static void _rtl92se_update_rxsignalstatistics(struct ieee80211_hw *hw,
442 struct rtl_stats *pstats)
443{
444 struct rtl_priv *rtlpriv = rtl_priv(hw);
445 int weighting = 0;
446
447 if (rtlpriv->stats.recv_signal_power == 0)
448 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
449
450 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
451 weighting = 5;
452 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
453 weighting = (-5);
454
455 rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power * 5
456 + pstats->recvsignalpower +
457 weighting) / 6;
458}
459
460static void _rtl92se_process_pwdb(struct ieee80211_hw *hw,
461 struct rtl_stats *pstats)
462{
463 struct rtl_priv *rtlpriv = rtl_priv(hw);
464 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
465 long undec_sm_pwdb = 0;
466
467 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
468 return;
469 } else {
470 undec_sm_pwdb =
471 rtlpriv->dm.undecorated_smoothed_pwdb;
472 }
473
474 if (pstats->packet_toself || pstats->packet_beacon) {
475 if (undec_sm_pwdb < 0)
476 undec_sm_pwdb = pstats->rx_pwdb_all;
477
478 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
479 undec_sm_pwdb =
480 (((undec_sm_pwdb) *
481 (RX_SMOOTH_FACTOR - 1)) +
482 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
483
484 undec_sm_pwdb = undec_sm_pwdb + 1;
485 } else {
486 undec_sm_pwdb = (((undec_sm_pwdb) *
487 (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) /
488 (RX_SMOOTH_FACTOR);
489 }
490
491 rtlpriv->dm.undecorated_smoothed_pwdb = undec_sm_pwdb;
492 _rtl92se_update_rxsignalstatistics(hw, pstats);
493 }
494}
495
496static void rtl_92s_process_streams(struct ieee80211_hw *hw,
497 struct rtl_stats *pstats)
498{
499 struct rtl_priv *rtlpriv = rtl_priv(hw);
500 u32 stream;
501
502 for (stream = 0; stream < 2; stream++) {
503 if (pstats->rx_mimo_signalquality[stream] != -1) {
504 if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
505 rtlpriv->stats.rx_evm_percentage[stream] =
506 pstats->rx_mimo_signalquality[stream];
507 }
508
509 rtlpriv->stats.rx_evm_percentage[stream] =
510 ((rtlpriv->stats.rx_evm_percentage[stream] *
511 (RX_SMOOTH_FACTOR - 1)) +
512 (pstats->rx_mimo_signalquality[stream] *
513 1)) / (RX_SMOOTH_FACTOR);
514 }
515 }
516}
517
518static void _rtl92se_process_ui_link_quality(struct ieee80211_hw *hw,
519 struct rtl_stats *pstats)
520{
521 struct rtl_priv *rtlpriv = rtl_priv(hw);
522 u32 last_evm = 0, tmpval;
523
524 if (pstats->signalquality != 0) {
525 if (pstats->packet_toself || pstats->packet_beacon) {
526
527 if (rtlpriv->stats.ui_link_quality.total_num++ >=
528 PHY_LINKQUALITY_SLID_WIN_MAX) {
529 rtlpriv->stats.ui_link_quality.total_num =
530 PHY_LINKQUALITY_SLID_WIN_MAX;
531 last_evm =
532 rtlpriv->stats.ui_link_quality.elements[
533 rtlpriv->stats.ui_link_quality.index];
534 rtlpriv->stats.ui_link_quality.total_val -=
535 last_evm;
536 }
537
538 rtlpriv->stats.ui_link_quality.total_val +=
539 pstats->signalquality;
540 rtlpriv->stats.ui_link_quality.elements[
541 rtlpriv->stats.ui_link_quality.index++] =
542 pstats->signalquality;
543
544 if (rtlpriv->stats.ui_link_quality.index >=
545 PHY_LINKQUALITY_SLID_WIN_MAX)
546 rtlpriv->stats.ui_link_quality.index = 0;
547
548 tmpval = rtlpriv->stats.ui_link_quality.total_val /
549 rtlpriv->stats.ui_link_quality.total_num;
550 rtlpriv->stats.signal_quality = tmpval;
551
552 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
553
554 rtl_92s_process_streams(hw, pstats);
555
556 }
557 }
558}
559
560static void _rtl92se_process_phyinfo(struct ieee80211_hw *hw,
561 u8 *buffer,
562 struct rtl_stats *pcurrent_stats)
563{
564
565 if (!pcurrent_stats->packet_matchbssid &&
566 !pcurrent_stats->packet_beacon)
567 return;
568
569 _rtl92se_process_ui_rssi(hw, pcurrent_stats);
570 _rtl92se_process_pwdb(hw, pcurrent_stats);
571 _rtl92se_process_ui_link_quality(hw, pcurrent_stats);
572}
573
574static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
575 struct sk_buff *skb, struct rtl_stats *pstats,
576 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
577{
578 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
579 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
580
581 struct ieee80211_hdr *hdr;
582 u8 *tmp_buf;
583 u8 *praddr;
584 __le16 fc;
585 u16 type, cfc;
586 bool packet_matchbssid, packet_toself, packet_beacon;
587
588 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
589
590 hdr = (struct ieee80211_hdr *)tmp_buf;
591 fc = hdr->frame_control;
592 cfc = le16_to_cpu(fc);
593 type = WLAN_FC_GET_TYPE(fc);
594 praddr = hdr->addr1;
595
596 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
597 (!compare_ether_addr(mac->bssid, (cfc & IEEE80211_FCTL_TODS) ?
598 hdr->addr1 : (cfc & IEEE80211_FCTL_FROMDS) ?
599 hdr->addr2 : hdr->addr3)) && (!pstats->hwerror) &&
600 (!pstats->crc) && (!pstats->icv));
601
602 packet_toself = packet_matchbssid &&
603 (!compare_ether_addr(praddr, rtlefuse->dev_addr));
604
605 if (ieee80211_is_beacon(fc))
606 packet_beacon = true;
607
608 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
609 packet_matchbssid, packet_toself, packet_beacon);
610 _rtl92se_process_phyinfo(hw, tmp_buf, pstats);
611}
612
613bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
614 struct ieee80211_rx_status *rx_status, u8 *pdesc,
615 struct sk_buff *skb)
616{
617 struct rx_fwinfo *p_drvinfo;
618 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
619
620 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
621 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
622 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
623 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
624 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
625 stats->hwerror = (u16)(stats->crc | stats->icv);
626 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
627
628 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
629 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
630 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
631 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
632 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
633
634 if (stats->hwerror)
635 return false;
636
637 rx_status->freq = hw->conf.channel->center_freq;
638 rx_status->band = hw->conf.channel->band;
639
640 if (GET_RX_STATUS_DESC_CRC32(pdesc))
641 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
642
643 if (!GET_RX_STATUS_DESC_SWDEC(pdesc))
644 rx_status->flag |= RX_FLAG_DECRYPTED;
645
646 if (GET_RX_STATUS_DESC_BW(pdesc))
647 rx_status->flag |= RX_FLAG_40MHZ;
648
649 if (GET_RX_STATUS_DESC_RX_HT(pdesc))
650 rx_status->flag |= RX_FLAG_HT;
651
652 rx_status->flag |= RX_FLAG_MACTIME_MPDU;
653
654 if (stats->decrypted)
655 rx_status->flag |= RX_FLAG_DECRYPTED;
656
657 rx_status->rate_idx = _rtl92se_rate_mapping((bool)
658 GET_RX_STATUS_DESC_RX_HT(pdesc),
659 (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc),
660 (bool)GET_RX_STATUS_DESC_PAGGR(pdesc));
661
662
663 rx_status->mactime = GET_RX_STATUS_DESC_TSFL(pdesc);
664 if (phystatus) {
665 p_drvinfo = (struct rx_fwinfo *)(skb->data +
666 stats->rx_bufshift);
667 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
668 p_drvinfo);
669 }
670
671 /*rx_status->qual = stats->signal; */
672 rx_status->signal = stats->rssi + 10;
673 /*rx_status->noise = -stats->noise; */
674
675 return true;
676}
677
678void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
679 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
680 struct ieee80211_tx_info *info, struct sk_buff *skb,
681 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
682{
683 struct rtl_priv *rtlpriv = rtl_priv(hw);
684 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
685 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
686 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
687 struct ieee80211_sta *sta = info->control.sta;
688 u8 *pdesc = (u8 *) pdesc_tx;
689 u16 seq_number;
690 __le16 fc = hdr->frame_control;
691 u8 reserved_macid = 0;
692 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
693 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
694 bool lastseg = (!(hdr->frame_control &
695 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
696 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
697 PCI_DMA_TODEVICE);
698 u8 bw_40 = 0;
699
700 if (mac->opmode == NL80211_IFTYPE_STATION) {
701 bw_40 = mac->bw_40;
702 } else if (mac->opmode == NL80211_IFTYPE_AP ||
703 mac->opmode == NL80211_IFTYPE_ADHOC) {
704 if (sta)
705 bw_40 = sta->ht_cap.cap &
706 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
707 }
708
709 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
710
711 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
712
713 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
714
715 if (firstseg) {
716 if (rtlpriv->dm.useramask) {
717 /* set txdesc macId */
718 if (ptcb_desc->mac_id < 32) {
719 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
720 reserved_macid |= ptcb_desc->mac_id;
721 }
722 }
723 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
724
725 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
726 DESC92S_RATEMCS0) ? 1 : 0));
727
728 if (rtlhal->version == VERSION_8192S_ACUT) {
729 if (ptcb_desc->hw_rate == DESC92S_RATE1M ||
730 ptcb_desc->hw_rate == DESC92S_RATE2M ||
731 ptcb_desc->hw_rate == DESC92S_RATE5_5M ||
732 ptcb_desc->hw_rate == DESC92S_RATE11M) {
733 ptcb_desc->hw_rate = DESC92S_RATE12M;
734 }
735 }
736
737 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
738
739 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
740 SET_TX_DESC_TX_SHORT(pdesc, 0);
741
742 /* Aggregation related */
743 if (info->flags & IEEE80211_TX_CTL_AMPDU)
744 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
745
746 /* For AMPDU, we must insert SSN into TX_DESC */
747 SET_TX_DESC_SEQ(pdesc, seq_number);
748
749 /* Protection mode related */
750 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
751 /* We choose only one protection mode to execute */
752 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
753 !ptcb_desc->cts_enable) ? 1 : 0));
754 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
755 1 : 0));
756 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
757
758 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
759 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
760 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
761 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
762 DESC92S_RATE54M) ?
763 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
764 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
765
766
767 /* Set Bandwidth and sub-channel settings. */
768 if (bw_40) {
769 if (ptcb_desc->packet_bw) {
770 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
771 /* use duplicated mode */
772 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
773 } else {
774 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
775 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
776 mac->cur_40_prime_sc);
777 }
778 } else {
779 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
780 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
781 }
782
783 /* 3 Fill necessary field in First Descriptor */
784 /*DWORD 0*/
785 SET_TX_DESC_LINIP(pdesc, 0);
786 SET_TX_DESC_OFFSET(pdesc, 32);
787 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
788
789 /*DWORD 1*/
790 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
791
792 /* Fill security related */
793 if (info->control.hw_key) {
794 struct ieee80211_key_conf *keyconf;
795
796 keyconf = info->control.hw_key;
797 switch (keyconf->cipher) {
798 case WLAN_CIPHER_SUITE_WEP40:
799 case WLAN_CIPHER_SUITE_WEP104:
800 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
801 break;
802 case WLAN_CIPHER_SUITE_TKIP:
803 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
804 break;
805 case WLAN_CIPHER_SUITE_CCMP:
806 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
807 break;
808 default:
809 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
810 break;
811
812 }
813 }
814
815 /* Set Packet ID */
816 SET_TX_DESC_PACKET_ID(pdesc, 0);
817
818 /* We will assign magement queue to BK. */
819 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
820
821 /* Alwasy enable all rate fallback range */
822 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
823
824 /* Fix: I don't kown why hw use 6.5M to tx when set it */
825 SET_TX_DESC_USER_RATE(pdesc,
826 ptcb_desc->use_driver_rate ? 1 : 0);
827
828 /* Set NON_QOS bit. */
829 if (!ieee80211_is_data_qos(fc))
830 SET_TX_DESC_NON_QOS(pdesc, 1);
831
832 }
833
834 /* Fill fields that are required to be initialized
835 * in all of the descriptors */
836 /*DWORD 0 */
837 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
838 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
839
840 /* DWORD 7 */
841 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
842
843 /* DOWRD 8 */
844 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
845
846 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
847}
848
849void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
850 bool firstseg, bool lastseg, struct sk_buff *skb)
851{
852 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
853 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
854 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
855
856 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
857 PCI_DMA_TODEVICE);
858
859 /* Clear all status */
860 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
861
862 /* This bit indicate this packet is used for FW download. */
863 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
864 /* For firmware downlaod we only need to set LINIP */
865 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
866
867 /* 92SE must set as 1 for firmware download HW DMA error */
868 SET_TX_DESC_FIRST_SEG(pdesc, 1);
869 SET_TX_DESC_LAST_SEG(pdesc, 1);
870
871 /* 92SE need not to set TX packet size when firmware download */
872 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
873 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
874 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
875
876 wmb();
877 SET_TX_DESC_OWN(pdesc, 1);
878 } else { /* H2C Command Desc format (Host TXCMD) */
879 /* 92SE must set as 1 for firmware download HW DMA error */
880 SET_TX_DESC_FIRST_SEG(pdesc, 1);
881 SET_TX_DESC_LAST_SEG(pdesc, 1);
882
883 SET_TX_DESC_OFFSET(pdesc, 0x20);
884
885 /* Buffer size + command header */
886 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
887 /* Fixed queue of H2C command */
888 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
889
890 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
891
892 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
893 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
894
895 wmb();
896 SET_TX_DESC_OWN(pdesc, 1);
897
898 }
899}
900
901void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
902{
903 if (istx) {
904 switch (desc_name) {
905 case HW_DESC_OWN:
906 wmb();
907 SET_TX_DESC_OWN(pdesc, 1);
908 break;
909 case HW_DESC_TX_NEXTDESC_ADDR:
910 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
911 break;
912 default:
913 RT_ASSERT(false, ("ERR txdesc :%d not process\n",
914 desc_name));
915 break;
916 }
917 } else {
918 switch (desc_name) {
919 case HW_DESC_RXOWN:
920 wmb();
921 SET_RX_STATUS_DESC_OWN(pdesc, 1);
922 break;
923 case HW_DESC_RXBUFF_ADDR:
924 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
925 break;
926 case HW_DESC_RXPKT_LEN:
927 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
928 break;
929 case HW_DESC_RXERO:
930 SET_RX_STATUS_DESC_EOR(pdesc, 1);
931 break;
932 default:
933 RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
934 desc_name));
935 break;
936 }
937 }
938}
939
940u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
941{
942 u32 ret = 0;
943
944 if (istx) {
945 switch (desc_name) {
946 case HW_DESC_OWN:
947 ret = GET_TX_DESC_OWN(desc);
948 break;
949 case HW_DESC_TXBUFF_ADDR:
950 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
951 break;
952 default:
953 RT_ASSERT(false, ("ERR txdesc :%d not process\n",
954 desc_name));
955 break;
956 }
957 } else {
958 switch (desc_name) {
959 case HW_DESC_OWN:
960 ret = GET_RX_STATUS_DESC_OWN(desc);
961 break;
962 case HW_DESC_RXPKT_LEN:
963 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
964 break;
965 default:
966 RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
967 desc_name));
968 break;
969 }
970 }
971 return ret;
972}
973
974void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
975{
976 struct rtl_priv *rtlpriv = rtl_priv(hw);
977 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
978}
1/******************************************************************************
2 *
3 * Copyright(c) 2009-2012 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 "../stats.h"
34#include "reg.h"
35#include "def.h"
36#include "phy.h"
37#include "fw.h"
38#include "trx.h"
39#include "led.h"
40
41static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
42{
43 __le16 fc = rtl_get_fc(skb);
44
45 if (unlikely(ieee80211_is_beacon(fc)))
46 return QSLT_BEACON;
47 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
48 return QSLT_MGNT;
49 if (ieee80211_is_nullfunc(fc))
50 return QSLT_HIGH;
51
52 /* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
53 * queue V0 at priority 7; however, the RTL8192SE appears to have
54 * that queue at priority 6
55 */
56 if (skb->priority == 7)
57 return QSLT_VO;
58 return skb->priority;
59}
60
61static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
62 struct rtl_stats *pstats, u8 *pdesc,
63 struct rx_fwinfo *p_drvinfo,
64 bool packet_match_bssid,
65 bool packet_toself,
66 bool packet_beacon)
67{
68 struct rtl_priv *rtlpriv = rtl_priv(hw);
69 struct phy_sts_cck_8192s_t *cck_buf;
70 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
71 s8 rx_pwr_all = 0, rx_pwr[4];
72 u8 rf_rx_num = 0, evm, pwdb_all;
73 u8 i, max_spatial_stream;
74 u32 rssi, total_rssi = 0;
75 bool is_cck = pstats->is_cck;
76
77 pstats->packet_matchbssid = packet_match_bssid;
78 pstats->packet_toself = packet_toself;
79 pstats->packet_beacon = packet_beacon;
80 pstats->rx_mimo_sig_qual[0] = -1;
81 pstats->rx_mimo_sig_qual[1] = -1;
82
83 if (is_cck) {
84 u8 report, cck_highpwr;
85 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
86
87 if (ppsc->rfpwr_state == ERFON)
88 cck_highpwr = (u8) rtl_get_bbreg(hw,
89 RFPGA0_XA_HSSIPARAMETER2,
90 0x200);
91 else
92 cck_highpwr = false;
93
94 if (!cck_highpwr) {
95 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
96 report = cck_buf->cck_agc_rpt & 0xc0;
97 report = report >> 6;
98 switch (report) {
99 case 0x3:
100 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
101 break;
102 case 0x2:
103 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
104 break;
105 case 0x1:
106 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
107 break;
108 case 0x0:
109 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
110 break;
111 }
112 } else {
113 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
114 report = p_drvinfo->cfosho[0] & 0x60;
115 report = report >> 5;
116 switch (report) {
117 case 0x3:
118 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
119 break;
120 case 0x2:
121 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
122 break;
123 case 0x1:
124 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
125 break;
126 case 0x0:
127 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
128 break;
129 }
130 }
131
132 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
133
134 /* CCK gain is smaller than OFDM/MCS gain, */
135 /* so we add gain diff by experiences, the val is 6 */
136 pwdb_all += 6;
137 if (pwdb_all > 100)
138 pwdb_all = 100;
139 /* modify the offset to make the same gain index with OFDM. */
140 if (pwdb_all > 34 && pwdb_all <= 42)
141 pwdb_all -= 2;
142 else if (pwdb_all > 26 && pwdb_all <= 34)
143 pwdb_all -= 6;
144 else if (pwdb_all > 14 && pwdb_all <= 26)
145 pwdb_all -= 8;
146 else if (pwdb_all > 4 && pwdb_all <= 14)
147 pwdb_all -= 4;
148
149 pstats->rx_pwdb_all = pwdb_all;
150 pstats->recvsignalpower = rx_pwr_all;
151
152 if (packet_match_bssid) {
153 u8 sq;
154 if (pstats->rx_pwdb_all > 40) {
155 sq = 100;
156 } else {
157 sq = cck_buf->sq_rpt;
158 if (sq > 64)
159 sq = 0;
160 else if (sq < 20)
161 sq = 100;
162 else
163 sq = ((64 - sq) * 100) / 44;
164 }
165
166 pstats->signalquality = sq;
167 pstats->rx_mimo_sig_qual[0] = sq;
168 pstats->rx_mimo_sig_qual[1] = -1;
169 }
170 } else {
171 rtlpriv->dm.rfpath_rxenable[0] =
172 rtlpriv->dm.rfpath_rxenable[1] = true;
173 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
174 if (rtlpriv->dm.rfpath_rxenable[i])
175 rf_rx_num++;
176
177 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
178 0x3f) * 2) - 110;
179 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
180 total_rssi += rssi;
181 rtlpriv->stats.rx_snr_db[i] =
182 (long)(p_drvinfo->rxsnr[i] / 2);
183
184 if (packet_match_bssid)
185 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
186 }
187
188 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
189 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
190 pstats->rx_pwdb_all = pwdb_all;
191 pstats->rxpower = rx_pwr_all;
192 pstats->recvsignalpower = rx_pwr_all;
193
194 if (pstats->is_ht && pstats->rate >= DESC92_RATEMCS8 &&
195 pstats->rate <= DESC92_RATEMCS15)
196 max_spatial_stream = 2;
197 else
198 max_spatial_stream = 1;
199
200 for (i = 0; i < max_spatial_stream; i++) {
201 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
202
203 if (packet_match_bssid) {
204 if (i == 0)
205 pstats->signalquality = (u8)(evm &
206 0xff);
207 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
208 }
209 }
210 }
211
212 if (is_cck)
213 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
214 pwdb_all));
215 else if (rf_rx_num != 0)
216 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
217 total_rssi /= rf_rx_num));
218}
219
220static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
221 struct sk_buff *skb, struct rtl_stats *pstats,
222 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
223{
224 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
225 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
226
227 struct ieee80211_hdr *hdr;
228 u8 *tmp_buf;
229 u8 *praddr;
230 __le16 fc;
231 u16 type, cfc;
232 bool packet_matchbssid, packet_toself, packet_beacon = false;
233
234 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
235
236 hdr = (struct ieee80211_hdr *)tmp_buf;
237 fc = hdr->frame_control;
238 cfc = le16_to_cpu(fc);
239 type = WLAN_FC_GET_TYPE(fc);
240 praddr = hdr->addr1;
241
242 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
243 ether_addr_equal(mac->bssid,
244 (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
245 (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
246 hdr->addr3) &&
247 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
248
249 packet_toself = packet_matchbssid &&
250 ether_addr_equal(praddr, rtlefuse->dev_addr);
251
252 if (ieee80211_is_beacon(fc))
253 packet_beacon = true;
254
255 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
256 packet_matchbssid, packet_toself, packet_beacon);
257 rtl_process_phyinfo(hw, tmp_buf, pstats);
258}
259
260bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
261 struct ieee80211_rx_status *rx_status, u8 *pdesc,
262 struct sk_buff *skb)
263{
264 struct rx_fwinfo *p_drvinfo;
265 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
266 struct ieee80211_hdr *hdr;
267 bool first_ampdu = false;
268
269 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
270 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
271 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
272 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
273 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
274 stats->hwerror = (u16)(stats->crc | stats->icv);
275 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
276
277 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
278 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
279 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
280 stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
281 && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
282 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
283 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
284 stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
285 stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
286
287 if (stats->hwerror)
288 return false;
289
290 rx_status->freq = hw->conf.chandef.chan->center_freq;
291 rx_status->band = hw->conf.chandef.chan->band;
292
293 if (stats->crc)
294 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
295
296 if (stats->rx_is40Mhzpacket)
297 rx_status->flag |= RX_FLAG_40MHZ;
298
299 if (stats->is_ht)
300 rx_status->flag |= RX_FLAG_HT;
301
302 rx_status->flag |= RX_FLAG_MACTIME_START;
303
304 /* hw will set stats->decrypted true, if it finds the
305 * frame is open data frame or mgmt frame,
306 * hw will not decrypt robust managment frame
307 * for IEEE80211w but still set stats->decrypted
308 * true, so here we should set it back to undecrypted
309 * for IEEE80211w frame, and mac80211 sw will help
310 * to decrypt it */
311 if (stats->decrypted) {
312 hdr = (struct ieee80211_hdr *)(skb->data +
313 stats->rx_drvinfo_size + stats->rx_bufshift);
314
315 if (!hdr) {
316 /* during testing, hdr was NULL here */
317 return false;
318 }
319 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
320 (ieee80211_has_protected(hdr->frame_control)))
321 rx_status->flag &= ~RX_FLAG_DECRYPTED;
322 else
323 rx_status->flag |= RX_FLAG_DECRYPTED;
324 }
325
326 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
327 stats->is_ht, stats->rate, first_ampdu);
328
329 rx_status->mactime = stats->timestamp_low;
330 if (phystatus) {
331 p_drvinfo = (struct rx_fwinfo *)(skb->data +
332 stats->rx_bufshift);
333 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
334 p_drvinfo);
335 }
336
337 /*rx_status->qual = stats->signal; */
338 rx_status->signal = stats->recvsignalpower + 10;
339
340 return true;
341}
342
343void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
344 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
345 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
346 struct ieee80211_sta *sta,
347 struct sk_buff *skb,
348 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
349{
350 struct rtl_priv *rtlpriv = rtl_priv(hw);
351 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
352 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
353 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
354 u8 *pdesc = pdesc_tx;
355 u16 seq_number;
356 __le16 fc = hdr->frame_control;
357 u8 reserved_macid = 0;
358 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
359 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
360 bool lastseg = (!(hdr->frame_control &
361 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
362 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
363 PCI_DMA_TODEVICE);
364 u8 bw_40 = 0;
365
366 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
367 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
368 "DMA mapping error");
369 return;
370 }
371 if (mac->opmode == NL80211_IFTYPE_STATION) {
372 bw_40 = mac->bw_40;
373 } else if (mac->opmode == NL80211_IFTYPE_AP ||
374 mac->opmode == NL80211_IFTYPE_ADHOC) {
375 if (sta)
376 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
377 }
378
379 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
380
381 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
382
383 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
384
385 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
386 firstseg = true;
387 lastseg = true;
388 }
389
390 if (firstseg) {
391 if (rtlpriv->dm.useramask) {
392 /* set txdesc macId */
393 if (ptcb_desc->mac_id < 32) {
394 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
395 reserved_macid |= ptcb_desc->mac_id;
396 }
397 }
398 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
399
400 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
401 DESC92_RATEMCS0) ? 1 : 0));
402
403 if (rtlhal->version == VERSION_8192S_ACUT) {
404 if (ptcb_desc->hw_rate == DESC92_RATE1M ||
405 ptcb_desc->hw_rate == DESC92_RATE2M ||
406 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
407 ptcb_desc->hw_rate == DESC92_RATE11M) {
408 ptcb_desc->hw_rate = DESC92_RATE12M;
409 }
410 }
411
412 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
413
414 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
415 SET_TX_DESC_TX_SHORT(pdesc, 0);
416
417 /* Aggregation related */
418 if (info->flags & IEEE80211_TX_CTL_AMPDU)
419 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
420
421 /* For AMPDU, we must insert SSN into TX_DESC */
422 SET_TX_DESC_SEQ(pdesc, seq_number);
423
424 /* Protection mode related */
425 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
426 /* We choose only one protection mode to execute */
427 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
428 !ptcb_desc->cts_enable) ? 1 : 0));
429 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
430 1 : 0));
431 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
432
433 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
434 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
435 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
436 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
437 DESC92_RATE54M) ?
438 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
439 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
440
441
442 /* Set Bandwidth and sub-channel settings. */
443 if (bw_40) {
444 if (ptcb_desc->packet_bw) {
445 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
446 /* use duplicated mode */
447 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
448 } else {
449 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
450 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
451 mac->cur_40_prime_sc);
452 }
453 } else {
454 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
455 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
456 }
457
458 /* 3 Fill necessary field in First Descriptor */
459 /*DWORD 0*/
460 SET_TX_DESC_LINIP(pdesc, 0);
461 SET_TX_DESC_OFFSET(pdesc, 32);
462 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
463
464 /*DWORD 1*/
465 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
466
467 /* Fill security related */
468 if (info->control.hw_key) {
469 struct ieee80211_key_conf *keyconf;
470
471 keyconf = info->control.hw_key;
472 switch (keyconf->cipher) {
473 case WLAN_CIPHER_SUITE_WEP40:
474 case WLAN_CIPHER_SUITE_WEP104:
475 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
476 break;
477 case WLAN_CIPHER_SUITE_TKIP:
478 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
479 break;
480 case WLAN_CIPHER_SUITE_CCMP:
481 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
482 break;
483 default:
484 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
485 break;
486
487 }
488 }
489
490 /* Set Packet ID */
491 SET_TX_DESC_PACKET_ID(pdesc, 0);
492
493 /* We will assign magement queue to BK. */
494 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
495
496 /* Alwasy enable all rate fallback range */
497 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
498
499 /* Fix: I don't kown why hw use 6.5M to tx when set it */
500 SET_TX_DESC_USER_RATE(pdesc,
501 ptcb_desc->use_driver_rate ? 1 : 0);
502
503 /* Set NON_QOS bit. */
504 if (!ieee80211_is_data_qos(fc))
505 SET_TX_DESC_NON_QOS(pdesc, 1);
506
507 }
508
509 /* Fill fields that are required to be initialized
510 * in all of the descriptors */
511 /*DWORD 0 */
512 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
513 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
514
515 /* DWORD 7 */
516 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
517
518 /* DOWRD 8 */
519 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
520
521 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
522}
523
524void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
525 bool firstseg, bool lastseg, struct sk_buff *skb)
526{
527 struct rtl_priv *rtlpriv = rtl_priv(hw);
528 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
529 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
530 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
531
532 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
533 PCI_DMA_TODEVICE);
534
535 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
536 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
537 "DMA mapping error");
538 return;
539 }
540 /* Clear all status */
541 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
542
543 /* This bit indicate this packet is used for FW download. */
544 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
545 /* For firmware downlaod we only need to set LINIP */
546 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
547
548 /* 92SE must set as 1 for firmware download HW DMA error */
549 SET_TX_DESC_FIRST_SEG(pdesc, 1);
550 SET_TX_DESC_LAST_SEG(pdesc, 1);
551
552 /* 92SE need not to set TX packet size when firmware download */
553 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
554 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
555 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
556
557 wmb();
558 SET_TX_DESC_OWN(pdesc, 1);
559 } else { /* H2C Command Desc format (Host TXCMD) */
560 /* 92SE must set as 1 for firmware download HW DMA error */
561 SET_TX_DESC_FIRST_SEG(pdesc, 1);
562 SET_TX_DESC_LAST_SEG(pdesc, 1);
563
564 SET_TX_DESC_OFFSET(pdesc, 0x20);
565
566 /* Buffer size + command header */
567 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
568 /* Fixed queue of H2C command */
569 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
570
571 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
572
573 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
574 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
575
576 wmb();
577 SET_TX_DESC_OWN(pdesc, 1);
578
579 }
580}
581
582void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
583 u8 desc_name, u8 *val)
584{
585 if (istx) {
586 switch (desc_name) {
587 case HW_DESC_OWN:
588 wmb();
589 SET_TX_DESC_OWN(pdesc, 1);
590 break;
591 case HW_DESC_TX_NEXTDESC_ADDR:
592 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
593 break;
594 default:
595 RT_ASSERT(false, "ERR txdesc :%d not process\n",
596 desc_name);
597 break;
598 }
599 } else {
600 switch (desc_name) {
601 case HW_DESC_RXOWN:
602 wmb();
603 SET_RX_STATUS_DESC_OWN(pdesc, 1);
604 break;
605 case HW_DESC_RXBUFF_ADDR:
606 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
607 break;
608 case HW_DESC_RXPKT_LEN:
609 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
610 break;
611 case HW_DESC_RXERO:
612 SET_RX_STATUS_DESC_EOR(pdesc, 1);
613 break;
614 default:
615 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
616 desc_name);
617 break;
618 }
619 }
620}
621
622u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
623{
624 u32 ret = 0;
625
626 if (istx) {
627 switch (desc_name) {
628 case HW_DESC_OWN:
629 ret = GET_TX_DESC_OWN(desc);
630 break;
631 case HW_DESC_TXBUFF_ADDR:
632 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
633 break;
634 default:
635 RT_ASSERT(false, "ERR txdesc :%d not process\n",
636 desc_name);
637 break;
638 }
639 } else {
640 switch (desc_name) {
641 case HW_DESC_OWN:
642 ret = GET_RX_STATUS_DESC_OWN(desc);
643 break;
644 case HW_DESC_RXPKT_LEN:
645 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
646 break;
647 default:
648 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
649 desc_name);
650 break;
651 }
652 }
653 return ret;
654}
655
656void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
657{
658 struct rtl_priv *rtlpriv = rtl_priv(hw);
659 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
660}