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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / wireless / rtlwifi / rtl8192ce / trx.c
blob4fb5ae24dee07fc08819add09b6e7793298beff8
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
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 s8 rx_pwr_all = 0, rx_pwr[4];
131 u8 evm, pwdb_all, rf_rx_num = 0;
132 u8 i, max_spatial_stream;
133 u32 rssi, total_rssi = 0;
134 bool in_powersavemode = false;
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_signalquality[0] = -1;
144 pstats->rx_mimo_signalquality[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 (!in_powersavemode)
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_signalquality[0] = sq;
215 pstats->rx_mimo_signalquality[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_signalquality[i] =
255 (u8) (evm & 0xff);
256 }
257 }
258 }
259
260 if (is_cck_rate)
261 pstats->signalstrength =
262 (u8) (_rtl92ce_signal_scale_mapping(hw, pwdb_all));
263 else if (rf_rx_num != 0)
264 pstats->signalstrength =
265 (u8) (_rtl92ce_signal_scale_mapping
266 (hw, total_rssi /= rf_rx_num));
267 }
268
269 static void _rtl92ce_process_ui_rssi(struct ieee80211_hw *hw,
270 struct rtl_stats *pstats)
271 {
272 struct rtl_priv *rtlpriv = rtl_priv(hw);
273 struct rtl_phy *rtlphy = &(rtlpriv->phy);
274 u8 rfpath;
275 u32 last_rssi, tmpval;
276
277 if (pstats->packet_toself || pstats->packet_beacon) {
278 rtlpriv->stats.rssi_calculate_cnt++;
279
280 if (rtlpriv->stats.ui_rssi.total_num++ >=
281 PHY_RSSI_SLID_WIN_MAX) {
282
283 rtlpriv->stats.ui_rssi.total_num =
284 PHY_RSSI_SLID_WIN_MAX;
285 last_rssi =
286 rtlpriv->stats.ui_rssi.elements[rtlpriv->
287 stats.ui_rssi.index];
288 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
289 }
290
291 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
292 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
293 index++] =
294 pstats->signalstrength;
295
296 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
297 rtlpriv->stats.ui_rssi.index = 0;
298
299 tmpval = rtlpriv->stats.ui_rssi.total_val /
300 rtlpriv->stats.ui_rssi.total_num;
301 rtlpriv->stats.signal_strength =
302 _rtl92ce_translate_todbm(hw, (u8) tmpval);
303 pstats->rssi = rtlpriv->stats.signal_strength;
304 }
305
306 if (!pstats->is_cck && pstats->packet_toself) {
307 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
308 rfpath++) {
309 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
310 rtlpriv->stats.rx_rssi_percentage[rfpath] =
311 pstats->rx_mimo_signalstrength[rfpath];
312
313 }
314
315 if (pstats->rx_mimo_signalstrength[rfpath] >
316 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
317 rtlpriv->stats.rx_rssi_percentage[rfpath] =
318 ((rtlpriv->stats.
319 rx_rssi_percentage[rfpath] *
320 (RX_SMOOTH_FACTOR - 1)) +
321 (pstats->rx_mimo_signalstrength[rfpath])) /
322 (RX_SMOOTH_FACTOR);
323
324 rtlpriv->stats.rx_rssi_percentage[rfpath] =
325 rtlpriv->stats.rx_rssi_percentage[rfpath] +
326 1;
327 } else {
328 rtlpriv->stats.rx_rssi_percentage[rfpath] =
329 ((rtlpriv->stats.
330 rx_rssi_percentage[rfpath] *
331 (RX_SMOOTH_FACTOR - 1)) +
332 (pstats->rx_mimo_signalstrength[rfpath])) /
333 (RX_SMOOTH_FACTOR);
334 }
335
336 }
337 }
338 }
339
340 static void _rtl92ce_update_rxsignalstatistics(struct ieee80211_hw *hw,
341 struct rtl_stats *pstats)
342 {
343 struct rtl_priv *rtlpriv = rtl_priv(hw);
344 int weighting = 0;
345
346 if (rtlpriv->stats.recv_signal_power == 0)
347 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
348
349 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
350 weighting = 5;
351
352 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
353 weighting = (-5);
354
355 rtlpriv->stats.recv_signal_power =
356 (rtlpriv->stats.recv_signal_power * 5 +
357 pstats->recvsignalpower + weighting) / 6;
358 }
359
360 static void _rtl92ce_process_pwdb(struct ieee80211_hw *hw,
361 struct rtl_stats *pstats)
362 {
363 struct rtl_priv *rtlpriv = rtl_priv(hw);
364 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
365 long undecorated_smoothed_pwdb;
366
367 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
368 return;
369 } else {
370 undecorated_smoothed_pwdb =
371 rtlpriv->dm.undecorated_smoothed_pwdb;
372 }
373
374 if (pstats->packet_toself || pstats->packet_beacon) {
375 if (undecorated_smoothed_pwdb < 0)
376 undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
377
378 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
379 undecorated_smoothed_pwdb =
380 (((undecorated_smoothed_pwdb) *
381 (RX_SMOOTH_FACTOR - 1)) +
382 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
383
384 undecorated_smoothed_pwdb = undecorated_smoothed_pwdb
385 + 1;
386 } else {
387 undecorated_smoothed_pwdb =
388 (((undecorated_smoothed_pwdb) *
389 (RX_SMOOTH_FACTOR - 1)) +
390 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
391 }
392
393 rtlpriv->dm.undecorated_smoothed_pwdb =
394 undecorated_smoothed_pwdb;
395 _rtl92ce_update_rxsignalstatistics(hw, pstats);
396 }
397 }
398
399 static void _rtl92ce_process_ui_link_quality(struct ieee80211_hw *hw,
400 struct rtl_stats *pstats)
401 {
402 struct rtl_priv *rtlpriv = rtl_priv(hw);
403 u32 last_evm, n_spatialstream, tmpval;
404
405 if (pstats->signalquality != 0) {
406 if (pstats->packet_toself || pstats->packet_beacon) {
407
408 if (rtlpriv->stats.ui_link_quality.total_num++ >=
409 PHY_LINKQUALITY_SLID_WIN_MAX) {
410 rtlpriv->stats.ui_link_quality.total_num =
411 PHY_LINKQUALITY_SLID_WIN_MAX;
412 last_evm =
413 rtlpriv->stats.
414 ui_link_quality.elements[rtlpriv->
415 stats.ui_link_quality.
416 index];
417 rtlpriv->stats.ui_link_quality.total_val -=
418 last_evm;
419 }
420
421 rtlpriv->stats.ui_link_quality.total_val +=
422 pstats->signalquality;
423 rtlpriv->stats.ui_link_quality.elements[rtlpriv->stats.
424 ui_link_quality.
425 index++] =
426 pstats->signalquality;
427
428 if (rtlpriv->stats.ui_link_quality.index >=
429 PHY_LINKQUALITY_SLID_WIN_MAX)
430 rtlpriv->stats.ui_link_quality.index = 0;
431
432 tmpval = rtlpriv->stats.ui_link_quality.total_val /
433 rtlpriv->stats.ui_link_quality.total_num;
434 rtlpriv->stats.signal_quality = tmpval;
435
436 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
437
438 for (n_spatialstream = 0; n_spatialstream < 2;
439 n_spatialstream++) {
440 if (pstats->
441 rx_mimo_signalquality[n_spatialstream] !=
442 -1) {
443 if (rtlpriv->stats.
444 rx_evm_percentage[n_spatialstream]
445 == 0) {
446 rtlpriv->stats.
447 rx_evm_percentage
448 [n_spatialstream] =
449 pstats->rx_mimo_signalquality
450 [n_spatialstream];
451 }
452
453 rtlpriv->stats.
454 rx_evm_percentage[n_spatialstream] =
455 ((rtlpriv->
456 stats.rx_evm_percentage
457 [n_spatialstream] *
458 (RX_SMOOTH_FACTOR - 1)) +
459 (pstats->
460 rx_mimo_signalquality
461 [n_spatialstream] * 1)) /
462 (RX_SMOOTH_FACTOR);
463 }
464 }
465 }
466 } else {
467 ;
468 }
469 }
470
471 static void _rtl92ce_process_phyinfo(struct ieee80211_hw *hw,
472 u8 *buffer,
473 struct rtl_stats *pcurrent_stats)
474 {
475
476 if (!pcurrent_stats->packet_matchbssid &&
477 !pcurrent_stats->packet_beacon)
478 return;
479
480 _rtl92ce_process_ui_rssi(hw, pcurrent_stats);
481 _rtl92ce_process_pwdb(hw, pcurrent_stats);
482 _rtl92ce_process_ui_link_quality(hw, pcurrent_stats);
483 }
484
485 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
486 struct sk_buff *skb,
487 struct rtl_stats *pstats,
488 struct rx_desc_92c *pdesc,
489 struct rx_fwinfo_92c *p_drvinfo)
490 {
491 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
492 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
493
494 struct ieee80211_hdr *hdr;
495 u8 *tmp_buf;
496 u8 *praddr;
497 __le16 fc;
498 u16 type, c_fc;
499 bool packet_matchbssid, packet_toself, packet_beacon;
500
501 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
502
503 hdr = (struct ieee80211_hdr *)tmp_buf;
504 fc = hdr->frame_control;
505 c_fc = le16_to_cpu(fc);
506 type = WLAN_FC_GET_TYPE(fc);
507 praddr = hdr->addr1;
508
509 packet_matchbssid =
510 ((IEEE80211_FTYPE_CTL != type) &&
511 (!compare_ether_addr(mac->bssid,
512 (c_fc & IEEE80211_FCTL_TODS) ?
513 hdr->addr1 : (c_fc & IEEE80211_FCTL_FROMDS) ?
514 hdr->addr2 : hdr->addr3)) &&
515 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
516
517 packet_toself = packet_matchbssid &&
518 (!compare_ether_addr(praddr, rtlefuse->dev_addr));
519
520 if (ieee80211_is_beacon(fc))
521 packet_beacon = true;
522
523 _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
524 packet_matchbssid, packet_toself,
525 packet_beacon);
526
527 _rtl92ce_process_phyinfo(hw, tmp_buf, pstats);
528 }
529
530 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
531 struct rtl_stats *stats,
532 struct ieee80211_rx_status *rx_status,
533 u8 *p_desc, struct sk_buff *skb)
534 {
535 struct rx_fwinfo_92c *p_drvinfo;
536 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
537
538 u32 phystatus = GET_RX_DESC_PHYST(pdesc);
539 stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
540 stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
541 RX_DRV_INFO_SIZE_UNIT;
542 stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
543 stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
544 stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
545 stats->hwerror = (stats->crc | stats->icv);
546 stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
547 stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
548 stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
549 stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
550 stats->isampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
551 && (GET_RX_DESC_FAGGR(pdesc) == 1));
552 stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
553 stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
554
555 rx_status->freq = hw->conf.channel->center_freq;
556 rx_status->band = hw->conf.channel->band;
557
558 if (GET_RX_DESC_CRC32(pdesc))
559 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
560
561 if (!GET_RX_DESC_SWDEC(pdesc))
562 rx_status->flag |= RX_FLAG_DECRYPTED;
563
564 if (GET_RX_DESC_BW(pdesc))
565 rx_status->flag |= RX_FLAG_40MHZ;
566
567 if (GET_RX_DESC_RXHT(pdesc))
568 rx_status->flag |= RX_FLAG_HT;
569
570 rx_status->flag |= RX_FLAG_MACTIME_MPDU;
571
572 if (stats->decrypted)
573 rx_status->flag |= RX_FLAG_DECRYPTED;
574
575 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
576 (bool)GET_RX_DESC_RXHT(pdesc),
577 (u8)GET_RX_DESC_RXMCS(pdesc),
578 (bool)GET_RX_DESC_PAGGR(pdesc));
579
580 rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
581 if (phystatus) {
582 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
583 stats->rx_bufshift);
584
585 _rtl92ce_translate_rx_signal_stuff(hw,
586 skb, stats, pdesc,
587 p_drvinfo);
588 }
589
590 /*rx_status->qual = stats->signal; */
591 rx_status->signal = stats->rssi + 10;
592 /*rx_status->noise = -stats->noise; */
593
594 return true;
595 }
596
597 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
598 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
599 struct ieee80211_tx_info *info, struct sk_buff *skb,
600 u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
601 {
602 struct rtl_priv *rtlpriv = rtl_priv(hw);
603 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
604 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
605 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
606 bool defaultadapter = true;
607 struct ieee80211_sta *sta;
608 u8 *pdesc = (u8 *) pdesc_tx;
609 u16 seq_number;
610 __le16 fc = hdr->frame_control;
611 u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
612 bool firstseg = ((hdr->seq_ctrl &
613 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
614
615 bool lastseg = ((hdr->frame_control &
616 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
617
618 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
619 skb->data, skb->len,
620 PCI_DMA_TODEVICE);
621 u8 bw_40 = 0;
622
623 rcu_read_lock();
624 sta = get_sta(hw, mac->vif, mac->bssid);
625 if (mac->opmode == NL80211_IFTYPE_STATION) {
626 bw_40 = mac->bw_40;
627 } else if (mac->opmode == NL80211_IFTYPE_AP ||
628 mac->opmode == NL80211_IFTYPE_ADHOC) {
629 if (sta)
630 bw_40 = sta->ht_cap.cap &
631 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
632 }
633
634 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
635
636 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
637
638 CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92c));
639
640 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
641 firstseg = true;
642 lastseg = true;
643 }
644 if (firstseg) {
645 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
646
647 SET_TX_DESC_TX_RATE(pdesc, tcb_desc->hw_rate);
648
649 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
650 SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
651
652 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
653 SET_TX_DESC_AGG_BREAK(pdesc, 1);
654 SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
655 }
656 SET_TX_DESC_SEQ(pdesc, seq_number);
657
658 SET_TX_DESC_RTS_ENABLE(pdesc, ((tcb_desc->rts_enable &&
659 !tcb_desc->
660 cts_enable) ? 1 : 0));
661 SET_TX_DESC_HW_RTS_ENABLE(pdesc,
662 ((tcb_desc->rts_enable
663 || tcb_desc->cts_enable) ? 1 : 0));
664 SET_TX_DESC_CTS2SELF(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
665 SET_TX_DESC_RTS_STBC(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
666
667 SET_TX_DESC_RTS_RATE(pdesc, tcb_desc->rts_rate);
668 SET_TX_DESC_RTS_BW(pdesc, 0);
669 SET_TX_DESC_RTS_SC(pdesc, tcb_desc->rts_sc);
670 SET_TX_DESC_RTS_SHORT(pdesc,
671 ((tcb_desc->rts_rate <= DESC92_RATE54M) ?
672 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
673 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
674
675 if (bw_40) {
676 if (tcb_desc->packet_bw) {
677 SET_TX_DESC_DATA_BW(pdesc, 1);
678 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
679 } else {
680 SET_TX_DESC_DATA_BW(pdesc, 0);
681 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
682 mac->cur_40_prime_sc);
683 }
684 } else {
685 SET_TX_DESC_DATA_BW(pdesc, 0);
686 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
687 }
688
689 SET_TX_DESC_LINIP(pdesc, 0);
690 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
691
692 if (sta) {
693 u8 ampdu_density = sta->ht_cap.ampdu_density;
694 SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
695 }
696
697 if (info->control.hw_key) {
698 struct ieee80211_key_conf *keyconf =
699 info->control.hw_key;
700
701 switch (keyconf->cipher) {
702 case WLAN_CIPHER_SUITE_WEP40:
703 case WLAN_CIPHER_SUITE_WEP104:
704 case WLAN_CIPHER_SUITE_TKIP:
705 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
706 break;
707 case WLAN_CIPHER_SUITE_CCMP:
708 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
709 break;
710 default:
711 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
712 break;
713
714 }
715 }
716
717 SET_TX_DESC_PKT_ID(pdesc, 0);
718 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
719
720 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
721 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
722 SET_TX_DESC_DISABLE_FB(pdesc, 0);
723 SET_TX_DESC_USE_RATE(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
724
725 if (ieee80211_is_data_qos(fc)) {
726 if (mac->rdg_en) {
727 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
728 ("Enable RDG function.\n"));
729 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
730 SET_TX_DESC_HTC(pdesc, 1);
731 }
732 }
733 }
734 rcu_read_unlock();
735
736 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
737 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
738
739 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
740
741 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
742
743 if (rtlpriv->dm.useramask) {
744 SET_TX_DESC_RATE_ID(pdesc, tcb_desc->ratr_index);
745 SET_TX_DESC_MACID(pdesc, tcb_desc->mac_id);
746 } else {
747 SET_TX_DESC_RATE_ID(pdesc, 0xC + tcb_desc->ratr_index);
748 SET_TX_DESC_MACID(pdesc, tcb_desc->ratr_index);
749 }
750
751 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
752 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
753 SET_TX_DESC_PKT_ID(pdesc, 8);
754
755 if (!defaultadapter)
756 SET_TX_DESC_QOS(pdesc, 1);
757 }
758
759 SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
760
761 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
762 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
763 SET_TX_DESC_BMC(pdesc, 1);
764 }
765
766 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
767 }
768
769 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
770 u8 *pdesc, bool firstseg,
771 bool lastseg, struct sk_buff *skb)
772 {
773 struct rtl_priv *rtlpriv = rtl_priv(hw);
774 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
775 u8 fw_queue = QSLT_BEACON;
776
777 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
778 skb->data, skb->len,
779 PCI_DMA_TODEVICE);
780
781 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
782 __le16 fc = hdr->frame_control;
783
784 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
785
786 if (firstseg)
787 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
788
789 SET_TX_DESC_TX_RATE(pdesc, DESC92_RATE1M);
790
791 SET_TX_DESC_SEQ(pdesc, 0);
792
793 SET_TX_DESC_LINIP(pdesc, 0);
794
795 SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
796
797 SET_TX_DESC_FIRST_SEG(pdesc, 1);
798 SET_TX_DESC_LAST_SEG(pdesc, 1);
799
800 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
801
802 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
803
804 SET_TX_DESC_RATE_ID(pdesc, 7);
805 SET_TX_DESC_MACID(pdesc, 0);
806
807 SET_TX_DESC_OWN(pdesc, 1);
808
809 SET_TX_DESC_PKT_SIZE((u8 *) pdesc, (u16) (skb->len));
810
811 SET_TX_DESC_FIRST_SEG(pdesc, 1);
812 SET_TX_DESC_LAST_SEG(pdesc, 1);
813
814 SET_TX_DESC_OFFSET(pdesc, 0x20);
815
816 SET_TX_DESC_USE_RATE(pdesc, 1);
817
818 if (!ieee80211_is_data_qos(fc)) {
819 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
820 SET_TX_DESC_PKT_ID(pdesc, 8);
821 }
822
823 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
824 "H2C Tx Cmd Content\n",
825 pdesc, TX_DESC_SIZE);
826 }
827
828 void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
829 {
830 if (istx) {
831 switch (desc_name) {
832 case HW_DESC_OWN:
833 wmb();
834 SET_TX_DESC_OWN(pdesc, 1);
835 break;
836 case HW_DESC_TX_NEXTDESC_ADDR:
837 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
838 break;
839 default:
840 RT_ASSERT(false, ("ERR txdesc :%d"
841 " not process\n", desc_name));
842 break;
843 }
844 } else {
845 switch (desc_name) {
846 case HW_DESC_RXOWN:
847 wmb();
848 SET_RX_DESC_OWN(pdesc, 1);
849 break;
850 case HW_DESC_RXBUFF_ADDR:
851 SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
852 break;
853 case HW_DESC_RXPKT_LEN:
854 SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
855 break;
856 case HW_DESC_RXERO:
857 SET_RX_DESC_EOR(pdesc, 1);
858 break;
859 default:
860 RT_ASSERT(false, ("ERR rxdesc :%d "
861 "not process\n", desc_name));
862 break;
863 }
864 }
865 }
866
867 u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
868 {
869 u32 ret = 0;
870
871 if (istx) {
872 switch (desc_name) {
873 case HW_DESC_OWN:
874 ret = GET_TX_DESC_OWN(p_desc);
875 break;
876 case HW_DESC_TXBUFF_ADDR:
877 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
878 break;
879 default:
880 RT_ASSERT(false, ("ERR txdesc :%d "
881 "not process\n", desc_name));
882 break;
883 }
884 } else {
885 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
886 switch (desc_name) {
887 case HW_DESC_OWN:
888 ret = GET_RX_DESC_OWN(pdesc);
889 break;
890 case HW_DESC_RXPKT_LEN:
891 ret = GET_RX_DESC_PKT_LEN(pdesc);
892 break;
893 default:
894 RT_ASSERT(false, ("ERR rxdesc :%d "
895 "not process\n", desc_name));
896 break;
897 }
898 }
899 return ret;
900 }
901
902 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
903 {
904 struct rtl_priv *rtlpriv = rtl_priv(hw);
905 if (hw_queue == BEACON_QUEUE) {
906 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
907 } else {
908 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
909 BIT(0) << (hw_queue));
910 }
911 }
912