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c31795e379f7e16a1a5a208f10af3d994eff3b66
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / rtl8192ce / trx.c
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 "reg.h"
34 #include "def.h"
35 #include "phy.h"
36 #include "trx.h"
37 #include "led.h"
38
39 static 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
51 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
52 {
53 if ((antpower <= -100) || (antpower >= 20))
54 return 0;
55 else if (antpower >= 0)
56 return 100;
57 else
58 return 100 + antpower;
59 }
60
61 static u8 _rtl92c_evm_db_to_percentage(char value)
62 {
63 char ret_val;
64 ret_val = value;
65
66 if (ret_val >= 0)
67 ret_val = 0;
68
69 if (ret_val <= -33)
70 ret_val = -33;
71
72 ret_val = 0 - ret_val;
73 ret_val *= 3;
74
75 if (ret_val == 99)
76 ret_val = 100;
77
78 return ret_val;
79 }
80
81 static long _rtl92ce_translate_todbm(struct ieee80211_hw *hw,
82 u8 signal_strength_index)
83 {
84 long signal_power;
85
86 signal_power = (long)((signal_strength_index + 1) >> 1);
87 signal_power -= 95;
88 return signal_power;
89 }
90
91 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
92 long currsig)
93 {
94 long retsig;
95
96 if (currsig >= 61 && currsig <= 100)
97 retsig = 90 + ((currsig - 60) / 4);
98 else if (currsig >= 41 && currsig <= 60)
99 retsig = 78 + ((currsig - 40) / 2);
100 else if (currsig >= 31 && currsig <= 40)
101 retsig = 66 + (currsig - 30);
102 else if (currsig >= 21 && currsig <= 30)
103 retsig = 54 + (currsig - 20);
104 else if (currsig >= 5 && currsig <= 20)
105 retsig = 42 + (((currsig - 5) * 2) / 3);
106 else if (currsig == 4)
107 retsig = 36;
108 else if (currsig == 3)
109 retsig = 27;
110 else if (currsig == 2)
111 retsig = 18;
112 else if (currsig == 1)
113 retsig = 9;
114 else
115 retsig = currsig;
116
117 return retsig;
118 }
119
120 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
121 struct rtl_stats *pstats,
122 struct rx_desc_92c *pdesc,
123 struct rx_fwinfo_92c *p_drvinfo,
124 bool packet_match_bssid,
125 bool packet_toself,
126 bool packet_beacon)
127 {
128 struct rtl_priv *rtlpriv = rtl_priv(hw);
129 struct phy_sts_cck_8192s_t *cck_buf;
130 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
131 s8 rx_pwr_all = 0, rx_pwr[4];
132 u8 evm, pwdb_all, rf_rx_num = 0;
133 u8 i, max_spatial_stream;
134 u32 rssi, total_rssi = 0;
135 bool is_cck_rate;
136
137 is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
138 pstats->packet_matchbssid = packet_match_bssid;
139 pstats->packet_toself = packet_toself;
140 pstats->is_cck = is_cck_rate;
141 pstats->packet_beacon = packet_beacon;
142 pstats->is_cck = is_cck_rate;
143 pstats->rx_mimo_sig_qual[0] = -1;
144 pstats->rx_mimo_sig_qual[1] = -1;
145
146 if (is_cck_rate) {
147 u8 report, cck_highpwr;
148 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
149
150 if (ppsc->rfpwr_state == ERFON)
151 cck_highpwr = (u8) rtl_get_bbreg(hw,
152 RFPGA0_XA_HSSIPARAMETER2,
153 BIT(9));
154 else
155 cck_highpwr = false;
156
157 if (!cck_highpwr) {
158 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
159 report = cck_buf->cck_agc_rpt & 0xc0;
160 report = report >> 6;
161 switch (report) {
162 case 0x3:
163 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
164 break;
165 case 0x2:
166 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
167 break;
168 case 0x1:
169 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
170 break;
171 case 0x0:
172 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
173 break;
174 }
175 } else {
176 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
177 report = p_drvinfo->cfosho[0] & 0x60;
178 report = report >> 5;
179 switch (report) {
180 case 0x3:
181 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
182 break;
183 case 0x2:
184 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
185 break;
186 case 0x1:
187 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
188 break;
189 case 0x0:
190 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
191 break;
192 }
193 }
194
195 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
196 pstats->rx_pwdb_all = pwdb_all;
197 pstats->recvsignalpower = rx_pwr_all;
198
199 if (packet_match_bssid) {
200 u8 sq;
201 if (pstats->rx_pwdb_all > 40)
202 sq = 100;
203 else {
204 sq = cck_buf->sq_rpt;
205 if (sq > 64)
206 sq = 0;
207 else if (sq < 20)
208 sq = 100;
209 else
210 sq = ((64 - sq) * 100) / 44;
211 }
212
213 pstats->signalquality = sq;
214 pstats->rx_mimo_sig_qual[0] = sq;
215 pstats->rx_mimo_sig_qual[1] = -1;
216 }
217 } else {
218 rtlpriv->dm.rfpath_rxenable[0] =
219 rtlpriv->dm.rfpath_rxenable[1] = true;
220 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
221 if (rtlpriv->dm.rfpath_rxenable[i])
222 rf_rx_num++;
223
224 rx_pwr[i] =
225 ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
226 rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
227 total_rssi += rssi;
228 rtlpriv->stats.rx_snr_db[i] =
229 (long)(p_drvinfo->rxsnr[i] / 2);
230
231 if (packet_match_bssid)
232 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
233 }
234
235 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
236 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
237 pstats->rx_pwdb_all = pwdb_all;
238 pstats->rxpower = rx_pwr_all;
239 pstats->recvsignalpower = rx_pwr_all;
240
241 if (pdesc->rxht && pdesc->rxmcs >= DESC92_RATEMCS8 &&
242 pdesc->rxmcs <= DESC92_RATEMCS15)
243 max_spatial_stream = 2;
244 else
245 max_spatial_stream = 1;
246
247 for (i = 0; i < max_spatial_stream; i++) {
248 evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
249
250 if (packet_match_bssid) {
251 if (i == 0)
252 pstats->signalquality =
253 (u8) (evm & 0xff);
254 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
255 }
256 }
257 }
258
259 if (is_cck_rate)
260 pstats->signalstrength =
261 (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
262 else if (rf_rx_num != 0)
263 pstats->signalstrength =
264 (u8) (_rtl92ce_signal_scale_mapping
265 (hw, total_rssi /= rf_rx_num));
266 }
267
268 static void _rtl92ce_process_ui_rssi(struct ieee80211_hw *hw,
269 struct rtl_stats *pstats)
270 {
271 struct rtl_priv *rtlpriv = rtl_priv(hw);
272 struct rtl_phy *rtlphy = &(rtlpriv->phy);
273 u8 rfpath;
274 u32 last_rssi, tmpval;
275
276 if (pstats->packet_toself || pstats->packet_beacon) {
277 rtlpriv->stats.rssi_calculate_cnt++;
278
279 if (rtlpriv->stats.ui_rssi.total_num++ >=
280 PHY_RSSI_SLID_WIN_MAX) {
281
282 rtlpriv->stats.ui_rssi.total_num =
283 PHY_RSSI_SLID_WIN_MAX;
284 last_rssi =
285 rtlpriv->stats.ui_rssi.elements[rtlpriv->
286 stats.ui_rssi.index];
287 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
288 }
289
290 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
291 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
292 index++] =
293 pstats->signalstrength;
294
295 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
296 rtlpriv->stats.ui_rssi.index = 0;
297
298 tmpval = rtlpriv->stats.ui_rssi.total_val /
299 rtlpriv->stats.ui_rssi.total_num;
300 rtlpriv->stats.signal_strength =
301 _rtl92ce_translate_todbm(hw, (u8) tmpval);
302 pstats->rssi = rtlpriv->stats.signal_strength;
303 }
304
305 if (!pstats->is_cck && pstats->packet_toself) {
306 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
307 rfpath++) {
308 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
309 rtlpriv->stats.rx_rssi_percentage[rfpath] =
310 pstats->rx_mimo_signalstrength[rfpath];
311
312 }
313
314 if (pstats->rx_mimo_signalstrength[rfpath] >
315 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
316 rtlpriv->stats.rx_rssi_percentage[rfpath] =
317 ((rtlpriv->stats.
318 rx_rssi_percentage[rfpath] *
319 (RX_SMOOTH_FACTOR - 1)) +
320 (pstats->rx_mimo_signalstrength[rfpath])) /
321 (RX_SMOOTH_FACTOR);
322
323 rtlpriv->stats.rx_rssi_percentage[rfpath] =
324 rtlpriv->stats.rx_rssi_percentage[rfpath] +
325 1;
326 } else {
327 rtlpriv->stats.rx_rssi_percentage[rfpath] =
328 ((rtlpriv->stats.
329 rx_rssi_percentage[rfpath] *
330 (RX_SMOOTH_FACTOR - 1)) +
331 (pstats->rx_mimo_signalstrength[rfpath])) /
332 (RX_SMOOTH_FACTOR);
333 }
334
335 }
336 }
337 }
338
339 static void _rtl92ce_update_rxsignalstatistics(struct ieee80211_hw *hw,
340 struct rtl_stats *pstats)
341 {
342 struct rtl_priv *rtlpriv = rtl_priv(hw);
343 int weighting = 0;
344
345 if (rtlpriv->stats.recv_signal_power == 0)
346 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
347
348 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
349 weighting = 5;
350
351 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
352 weighting = (-5);
353
354 rtlpriv->stats.recv_signal_power =
355 (rtlpriv->stats.recv_signal_power * 5 +
356 pstats->recvsignalpower + weighting) / 6;
357 }
358
359 static void _rtl92ce_process_pwdb(struct ieee80211_hw *hw,
360 struct rtl_stats *pstats)
361 {
362 struct rtl_priv *rtlpriv = rtl_priv(hw);
363 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
364 long undec_sm_pwdb;
365
366 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
367 return;
368 } else {
369 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
370 }
371
372 if (pstats->packet_toself || pstats->packet_beacon) {
373 if (undec_sm_pwdb < 0)
374 undec_sm_pwdb = pstats->rx_pwdb_all;
375
376 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
377 undec_sm_pwdb = (((undec_sm_pwdb) *
378 (RX_SMOOTH_FACTOR - 1)) +
379 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
380
381 undec_sm_pwdb += 1;
382 } else {
383 undec_sm_pwdb = (((undec_sm_pwdb) *
384 (RX_SMOOTH_FACTOR - 1)) +
385 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
386 }
387
388 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
389 _rtl92ce_update_rxsignalstatistics(hw, pstats);
390 }
391 }
392
393 static void _rtl92ce_process_ui_link_quality(struct ieee80211_hw *hw,
394 struct rtl_stats *pstats)
395 {
396 struct rtl_priv *rtlpriv = rtl_priv(hw);
397 u32 last_evm, n_spatialstream, tmpval;
398
399 if (pstats->signalquality != 0) {
400 if (pstats->packet_toself || pstats->packet_beacon) {
401
402 if (rtlpriv->stats.ui_link_quality.total_num++ >=
403 PHY_LINKQUALITY_SLID_WIN_MAX) {
404 rtlpriv->stats.ui_link_quality.total_num =
405 PHY_LINKQUALITY_SLID_WIN_MAX;
406 last_evm =
407 rtlpriv->stats.
408 ui_link_quality.elements[rtlpriv->
409 stats.ui_link_quality.
410 index];
411 rtlpriv->stats.ui_link_quality.total_val -=
412 last_evm;
413 }
414
415 rtlpriv->stats.ui_link_quality.total_val +=
416 pstats->signalquality;
417 rtlpriv->stats.ui_link_quality.elements[rtlpriv->stats.
418 ui_link_quality.
419 index++] =
420 pstats->signalquality;
421
422 if (rtlpriv->stats.ui_link_quality.index >=
423 PHY_LINKQUALITY_SLID_WIN_MAX)
424 rtlpriv->stats.ui_link_quality.index = 0;
425
426 tmpval = rtlpriv->stats.ui_link_quality.total_val /
427 rtlpriv->stats.ui_link_quality.total_num;
428 rtlpriv->stats.signal_quality = tmpval;
429
430 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
431
432 for (n_spatialstream = 0; n_spatialstream < 2;
433 n_spatialstream++) {
434 if (pstats->
435 rx_mimo_sig_qual[n_spatialstream] != -1) {
436 if (rtlpriv->stats.
437 rx_evm_percentage[n_spatialstream]
438 == 0) {
439 rtlpriv->stats.
440 rx_evm_percentage
441 [n_spatialstream] =
442 pstats->rx_mimo_sig_qual
443 [n_spatialstream];
444 }
445
446 rtlpriv->stats.
447 rx_evm_percentage[n_spatialstream] =
448 ((rtlpriv->
449 stats.rx_evm_percentage
450 [n_spatialstream] *
451 (RX_SMOOTH_FACTOR - 1)) +
452 (pstats->rx_mimo_sig_qual
453 [n_spatialstream] * 1)) /
454 (RX_SMOOTH_FACTOR);
455 }
456 }
457 }
458 } else {
459 ;
460 }
461 }
462
463 static void _rtl92ce_process_phyinfo(struct ieee80211_hw *hw,
464 u8 *buffer,
465 struct rtl_stats *pcurrent_stats)
466 {
467
468 if (!pcurrent_stats->packet_matchbssid &&
469 !pcurrent_stats->packet_beacon)
470 return;
471
472 _rtl92ce_process_ui_rssi(hw, pcurrent_stats);
473 _rtl92ce_process_pwdb(hw, pcurrent_stats);
474 _rtl92ce_process_ui_link_quality(hw, pcurrent_stats);
475 }
476
477 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
478 struct sk_buff *skb,
479 struct rtl_stats *pstats,
480 struct rx_desc_92c *pdesc,
481 struct rx_fwinfo_92c *p_drvinfo)
482 {
483 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
484 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
485
486 struct ieee80211_hdr *hdr;
487 u8 *tmp_buf;
488 u8 *praddr;
489 __le16 fc;
490 u16 type, c_fc;
491 bool packet_matchbssid, packet_toself, packet_beacon;
492
493 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
494
495 hdr = (struct ieee80211_hdr *)tmp_buf;
496 fc = hdr->frame_control;
497 c_fc = le16_to_cpu(fc);
498 type = WLAN_FC_GET_TYPE(fc);
499 praddr = hdr->addr1;
500
501 packet_matchbssid =
502 ((IEEE80211_FTYPE_CTL != type) &&
503 ether_addr_equal(mac->bssid,
504 (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
505 (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
506 hdr->addr3) &&
507 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
508
509 packet_toself = packet_matchbssid &&
510 ether_addr_equal(praddr, rtlefuse->dev_addr);
511
512 if (ieee80211_is_beacon(fc))
513 packet_beacon = true;
514
515 _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
516 packet_matchbssid, packet_toself,
517 packet_beacon);
518
519 _rtl92ce_process_phyinfo(hw, tmp_buf, pstats);
520 }
521
522 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
523 struct rtl_stats *stats,
524 struct ieee80211_rx_status *rx_status,
525 u8 *p_desc, struct sk_buff *skb)
526 {
527 struct rx_fwinfo_92c *p_drvinfo;
528 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
529
530 u32 phystatus = GET_RX_DESC_PHYST(pdesc);
531 stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
532 stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
533 RX_DRV_INFO_SIZE_UNIT;
534 stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
535 stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
536 stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
537 stats->hwerror = (stats->crc | stats->icv);
538 stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
539 stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
540 stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
541 stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
542 stats->isampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
543 && (GET_RX_DESC_FAGGR(pdesc) == 1));
544 stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
545 stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
546
547 rx_status->freq = hw->conf.channel->center_freq;
548 rx_status->band = hw->conf.channel->band;
549
550 if (GET_RX_DESC_CRC32(pdesc))
551 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
552
553 if (!GET_RX_DESC_SWDEC(pdesc))
554 rx_status->flag |= RX_FLAG_DECRYPTED;
555
556 if (GET_RX_DESC_BW(pdesc))
557 rx_status->flag |= RX_FLAG_40MHZ;
558
559 if (GET_RX_DESC_RXHT(pdesc))
560 rx_status->flag |= RX_FLAG_HT;
561
562 rx_status->flag |= RX_FLAG_MACTIME_START;
563
564 if (stats->decrypted)
565 rx_status->flag |= RX_FLAG_DECRYPTED;
566
567 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
568 (bool)GET_RX_DESC_RXHT(pdesc),
569 (u8)GET_RX_DESC_RXMCS(pdesc),
570 (bool)GET_RX_DESC_PAGGR(pdesc));
571
572 rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
573 if (phystatus) {
574 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
575 stats->rx_bufshift);
576
577 _rtl92ce_translate_rx_signal_stuff(hw,
578 skb, stats, pdesc,
579 p_drvinfo);
580 }
581
582 /*rx_status->qual = stats->signal; */
583 rx_status->signal = stats->rssi + 10;
584 /*rx_status->noise = -stats->noise; */
585
586 return true;
587 }
588
589 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
590 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
591 struct ieee80211_tx_info *info,
592 struct ieee80211_sta *sta,
593 struct sk_buff *skb,
594 u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
595 {
596 struct rtl_priv *rtlpriv = rtl_priv(hw);
597 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
598 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
599 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
600 bool defaultadapter = true;
601 u8 *pdesc = pdesc_tx;
602 u16 seq_number;
603 __le16 fc = hdr->frame_control;
604 u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
605 bool firstseg = ((hdr->seq_ctrl &
606 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
607
608 bool lastseg = ((hdr->frame_control &
609 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
610
611 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
612 skb->data, skb->len,
613 PCI_DMA_TODEVICE);
614
615 u8 bw_40 = 0;
616
617 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
618 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
619 "DMA mapping error");
620 return;
621 }
622 rcu_read_lock();
623 sta = get_sta(hw, mac->vif, mac->bssid);
624 if (mac->opmode == NL80211_IFTYPE_STATION) {
625 bw_40 = mac->bw_40;
626 } else if (mac->opmode == NL80211_IFTYPE_AP ||
627 mac->opmode == NL80211_IFTYPE_ADHOC) {
628 if (sta)
629 bw_40 = sta->ht_cap.cap &
630 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
631 }
632
633 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
634
635 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
636
637 CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
638
639 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
640 firstseg = true;
641 lastseg = true;
642 }
643 if (firstseg) {
644 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
645
646 SET_TX_DESC_TX_RATE(pdesc, tcb_desc->hw_rate);
647
648 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
649 SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
650
651 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
652 SET_TX_DESC_AGG_BREAK(pdesc, 1);
653 SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
654 }
655 SET_TX_DESC_SEQ(pdesc, seq_number);
656
657 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc->rts_enable &&
658 !tcb_desc->
659 cts_enable) ? 1 : 0));
660 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
661 ((tcb_desc->rts_enable
662 || tcb_desc->cts_enable) ? 1 : 0));
663 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
664 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
665
666 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc->rts_rate);
667 SET_TX_DESC_RTS_BW(pdesc, 0);
668 SET_TX_DESC_RTS_SC(pdesc, tcb_desc->rts_sc);
669 SET_TX_DESC_RTS_SHORT(pdesc,
670 ((tcb_desc->rts_rate <= DESC92_RATE54M) ?
671 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
672 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
673
674 if (bw_40) {
675 if (tcb_desc->packet_bw) {
676 SET_TX_DESC_DATA_BW(pdesc, 1);
677 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
678 } else {
679 SET_TX_DESC_DATA_BW(pdesc, 0);
680 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
681 mac->cur_40_prime_sc);
682 }
683 } else {
684 SET_TX_DESC_DATA_BW(pdesc, 0);
685 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
686 }
687
688 SET_TX_DESC_LINIP(pdesc, 0);
689 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
690
691 if (sta) {
692 u8 ampdu_density = sta->ht_cap.ampdu_density;
693 SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
694 }
695
696 if (info->control.hw_key) {
697 struct ieee80211_key_conf *keyconf =
698 info->control.hw_key;
699
700 switch (keyconf->cipher) {
701 case WLAN_CIPHER_SUITE_WEP40:
702 case WLAN_CIPHER_SUITE_WEP104:
703 case WLAN_CIPHER_SUITE_TKIP:
704 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
705 break;
706 case WLAN_CIPHER_SUITE_CCMP:
707 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
708 break;
709 default:
710 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
711 break;
712
713 }
714 }
715
716 SET_TX_DESC_PKT_ID(pdesc, 0);
717 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
718
719 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
720 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
721 SET_TX_DESC_DISABLE_FB(pdesc, 0);
722 SET_TX_DESC_USE_RATE(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
723
724 if (ieee80211_is_data_qos(fc)) {
725 if (mac->rdg_en) {
726 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
727 "Enable RDG function\n");
728 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
729 SET_TX_DESC_HTC(pdesc, 1);
730 }
731 }
732 }
733 rcu_read_unlock();
734
735 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
736 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
737
738 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
739
740 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
741
742 if (rtlpriv->dm.useramask) {
743 SET_TX_DESC_RATE_ID(pdesc, tcb_desc->ratr_index);
744 SET_TX_DESC_MACID(pdesc, tcb_desc->mac_id);
745 } else {
746 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc->ratr_index);
747 SET_TX_DESC_MACID(pdesc, tcb_desc->ratr_index);
748 }
749
750 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
751 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
752 SET_TX_DESC_PKT_ID(pdesc, 8);
753
754 if (!defaultadapter)
755 SET_TX_DESC_QOS(pdesc, 1);
756 }
757
758 SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
759
760 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
761 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
762 SET_TX_DESC_BMC(pdesc, 1);
763 }
764
765 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
766 }
767
768 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
769 u8 *pdesc, bool firstseg,
770 bool lastseg, struct sk_buff *skb)
771 {
772 struct rtl_priv *rtlpriv = rtl_priv(hw);
773 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
774 u8 fw_queue = QSLT_BEACON;
775
776 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
777 skb->data, skb->len,
778 PCI_DMA_TODEVICE);
779
780 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
781 __le16 fc = hdr->frame_control;
782
783 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
784 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
785 "DMA mapping error");
786 return;
787 }
788 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
789
790 if (firstseg)
791 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
792
793 SET_TX_DESC_TX_RATE(pdesc, DESC92_RATE1M);
794
795 SET_TX_DESC_SEQ(pdesc, 0);
796
797 SET_TX_DESC_LINIP(pdesc, 0);
798
799 SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
800
801 SET_TX_DESC_FIRST_SEG(pdesc, 1);
802 SET_TX_DESC_LAST_SEG(pdesc, 1);
803
804 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
805
806 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
807
808 SET_TX_DESC_RATE_ID(pdesc, 7);
809 SET_TX_DESC_MACID(pdesc, 0);
810
811 SET_TX_DESC_OWN(pdesc, 1);
812
813 SET_TX_DESC_PKT_SIZE(pdesc, (u16) (skb->len));
814
815 SET_TX_DESC_FIRST_SEG(pdesc, 1);
816 SET_TX_DESC_LAST_SEG(pdesc, 1);
817
818 SET_TX_DESC_OFFSET(pdesc, 0x20);
819
820 SET_TX_DESC_USE_RATE(pdesc, 1);
821
822 if (!ieee80211_is_data_qos(fc)) {
823 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
824 SET_TX_DESC_PKT_ID(pdesc, 8);
825 }
826
827 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
828 "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
829 }
830
831 void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
832 {
833 if (istx) {
834 switch (desc_name) {
835 case HW_DESC_OWN:
836 wmb();
837 SET_TX_DESC_OWN(pdesc, 1);
838 break;
839 case HW_DESC_TX_NEXTDESC_ADDR:
840 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
841 break;
842 default:
843 RT_ASSERT(false, "ERR txdesc :%d not process\n",
844 desc_name);
845 break;
846 }
847 } else {
848 switch (desc_name) {
849 case HW_DESC_RXOWN:
850 wmb();
851 SET_RX_DESC_OWN(pdesc, 1);
852 break;
853 case HW_DESC_RXBUFF_ADDR:
854 SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
855 break;
856 case HW_DESC_RXPKT_LEN:
857 SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
858 break;
859 case HW_DESC_RXERO:
860 SET_RX_DESC_EOR(pdesc, 1);
861 break;
862 default:
863 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
864 desc_name);
865 break;
866 }
867 }
868 }
869
870 u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
871 {
872 u32 ret = 0;
873
874 if (istx) {
875 switch (desc_name) {
876 case HW_DESC_OWN:
877 ret = GET_TX_DESC_OWN(p_desc);
878 break;
879 case HW_DESC_TXBUFF_ADDR:
880 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
881 break;
882 default:
883 RT_ASSERT(false, "ERR txdesc :%d not process\n",
884 desc_name);
885 break;
886 }
887 } else {
888 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
889 switch (desc_name) {
890 case HW_DESC_OWN:
891 ret = GET_RX_DESC_OWN(pdesc);
892 break;
893 case HW_DESC_RXPKT_LEN:
894 ret = GET_RX_DESC_PKT_LEN(pdesc);
895 break;
896 default:
897 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
898 desc_name);
899 break;
900 }
901 }
902 return ret;
903 }
904
905 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
906 {
907 struct rtl_priv *rtlpriv = rtl_priv(hw);
908 if (hw_queue == BEACON_QUEUE) {
909 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
910 } else {
911 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
912 BIT(0) << (hw_queue));
913 }
914 }
915
Linux kernel - Deliverables
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