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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 / rtl8192de / trx.c
blob3637c0c3352513b2dab6a6c964feb61b0f2085ad
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 _rtl92de_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 _rtl92d_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 _rtl92d_evm_db_to_percentage(char value)
62 {
63 char ret_val = value;
64
65 if (ret_val >= 0)
66 ret_val = 0;
67 if (ret_val <= -33)
68 ret_val = -33;
69 ret_val = 0 - ret_val;
70 ret_val *= 3;
71 if (ret_val == 99)
72 ret_val = 100;
73 return ret_val;
74 }
75
76 static long _rtl92de_translate_todbm(struct ieee80211_hw *hw,
77 u8 signal_strength_index)
78 {
79 long signal_power;
80
81 signal_power = (long)((signal_strength_index + 1) >> 1);
82 signal_power -= 95;
83 return signal_power;
84 }
85
86 static long _rtl92de_signal_scale_mapping(struct ieee80211_hw *hw, long currsig)
87 {
88 long retsig;
89
90 if (currsig >= 61 && currsig <= 100)
91 retsig = 90 + ((currsig - 60) / 4);
92 else if (currsig >= 41 && currsig <= 60)
93 retsig = 78 + ((currsig - 40) / 2);
94 else if (currsig >= 31 && currsig <= 40)
95 retsig = 66 + (currsig - 30);
96 else if (currsig >= 21 && currsig <= 30)
97 retsig = 54 + (currsig - 20);
98 else if (currsig >= 5 && currsig <= 20)
99 retsig = 42 + (((currsig - 5) * 2) / 3);
100 else if (currsig == 4)
101 retsig = 36;
102 else if (currsig == 3)
103 retsig = 27;
104 else if (currsig == 2)
105 retsig = 18;
106 else if (currsig == 1)
107 retsig = 9;
108 else
109 retsig = currsig;
110 return retsig;
111 }
112
113 static void _rtl92de_query_rxphystatus(struct ieee80211_hw *hw,
114 struct rtl_stats *pstats,
115 struct rx_desc_92d *pdesc,
116 struct rx_fwinfo_92d *p_drvinfo,
117 bool packet_match_bssid,
118 bool packet_toself,
119 bool packet_beacon)
120 {
121 struct rtl_priv *rtlpriv = rtl_priv(hw);
122 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
123 struct phy_sts_cck_8192d *cck_buf;
124 s8 rx_pwr_all, rx_pwr[4];
125 u8 rf_rx_num = 0, evm, pwdb_all;
126 u8 i, max_spatial_stream;
127 u32 rssi, total_rssi = 0;
128 bool is_cck_rate;
129
130 is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
131 pstats->packet_matchbssid = packet_match_bssid;
132 pstats->packet_toself = packet_toself;
133 pstats->packet_beacon = packet_beacon;
134 pstats->is_cck = is_cck_rate;
135 pstats->rx_mimo_signalquality[0] = -1;
136 pstats->rx_mimo_signalquality[1] = -1;
137
138 if (is_cck_rate) {
139 u8 report, cck_highpwr;
140 cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
141 if (ppsc->rfpwr_state == ERFON)
142 cck_highpwr = (u8) rtl_get_bbreg(hw,
143 RFPGA0_XA_HSSIPARAMETER2,
144 BIT(9));
145 else
146 cck_highpwr = false;
147 if (!cck_highpwr) {
148 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
149 report = cck_buf->cck_agc_rpt & 0xc0;
150 report = report >> 6;
151 switch (report) {
152 case 0x3:
153 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
154 break;
155 case 0x2:
156 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
157 break;
158 case 0x1:
159 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
160 break;
161 case 0x0:
162 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
163 break;
164 }
165 } else {
166 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
167 report = p_drvinfo->cfosho[0] & 0x60;
168 report = report >> 5;
169 switch (report) {
170 case 0x3:
171 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
172 break;
173 case 0x2:
174 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
175 break;
176 case 0x1:
177 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
178 break;
179 case 0x0:
180 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
181 break;
182 }
183 }
184 pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
185 /* CCK gain is smaller than OFDM/MCS gain, */
186 /* so we add gain diff by experiences, the val is 6 */
187 pwdb_all += 6;
188 if (pwdb_all > 100)
189 pwdb_all = 100;
190 /* modify the offset to make the same gain index with OFDM. */
191 if (pwdb_all > 34 && pwdb_all <= 42)
192 pwdb_all -= 2;
193 else if (pwdb_all > 26 && pwdb_all <= 34)
194 pwdb_all -= 6;
195 else if (pwdb_all > 14 && pwdb_all <= 26)
196 pwdb_all -= 8;
197 else if (pwdb_all > 4 && pwdb_all <= 14)
198 pwdb_all -= 4;
199 pstats->rx_pwdb_all = pwdb_all;
200 pstats->recvsignalpower = rx_pwr_all;
201 if (packet_match_bssid) {
202 u8 sq;
203 if (pstats->rx_pwdb_all > 40) {
204 sq = 100;
205 } else {
206 sq = cck_buf->sq_rpt;
207 if (sq > 64)
208 sq = 0;
209 else if (sq < 20)
210 sq = 100;
211 else
212 sq = ((64 - sq) * 100) / 44;
213 }
214 pstats->signalquality = sq;
215 pstats->rx_mimo_signalquality[0] = sq;
216 pstats->rx_mimo_signalquality[1] = -1;
217 }
218 } else {
219 rtlpriv->dm.rfpath_rxenable[0] = true;
220 rtlpriv->dm.rfpath_rxenable[1] = true;
221 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
222 if (rtlpriv->dm.rfpath_rxenable[i])
223 rf_rx_num++;
224 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
225 - 110;
226 rssi = _rtl92d_query_rxpwrpercentage(rx_pwr[i]);
227 total_rssi += rssi;
228 rtlpriv->stats.rx_snr_db[i] =
229 (long)(p_drvinfo->rxsnr[i] / 2);
230 if (packet_match_bssid)
231 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
232 }
233 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
234 pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
235 pstats->rx_pwdb_all = pwdb_all;
236 pstats->rxpower = rx_pwr_all;
237 pstats->recvsignalpower = rx_pwr_all;
238 if (pdesc->rxht && pdesc->rxmcs >= DESC92_RATEMCS8 &&
239 pdesc->rxmcs <= DESC92_RATEMCS15)
240 max_spatial_stream = 2;
241 else
242 max_spatial_stream = 1;
243 for (i = 0; i < max_spatial_stream; i++) {
244 evm = _rtl92d_evm_db_to_percentage(p_drvinfo->rxevm[i]);
245 if (packet_match_bssid) {
246 if (i == 0)
247 pstats->signalquality =
248 (u8)(evm & 0xff);
249 pstats->rx_mimo_signalquality[i] =
250 (u8)(evm & 0xff);
251 }
252 }
253 }
254 if (is_cck_rate)
255 pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
256 pwdb_all));
257 else if (rf_rx_num != 0)
258 pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
259 total_rssi /= rf_rx_num));
260 }
261
262 static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
263 struct rtl_stats *pstats)
264 {
265 struct rtl_priv *rtlpriv = rtl_priv(hw);
266 struct rtl_phy *rtlphy = &(rtlpriv->phy);
267 u8 rfpath;
268
269 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
270 rfpath++) {
271 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
272 rtlpriv->stats.rx_rssi_percentage[rfpath] =
273 pstats->rx_mimo_signalstrength[rfpath];
274
275 }
276 if (pstats->rx_mimo_signalstrength[rfpath] >
277 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
278 rtlpriv->stats.rx_rssi_percentage[rfpath] =
279 ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
280 (RX_SMOOTH_FACTOR - 1)) +
281 (pstats->rx_mimo_signalstrength[rfpath])) /
282 (RX_SMOOTH_FACTOR);
283 rtlpriv->stats.rx_rssi_percentage[rfpath] =
284 rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
285 } else {
286 rtlpriv->stats.rx_rssi_percentage[rfpath] =
287 ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
288 (RX_SMOOTH_FACTOR - 1)) +
289 (pstats->rx_mimo_signalstrength[rfpath])) /
290 (RX_SMOOTH_FACTOR);
291 }
292 }
293 }
294
295 static void _rtl92de_process_ui_rssi(struct ieee80211_hw *hw,
296 struct rtl_stats *pstats)
297 {
298 struct rtl_priv *rtlpriv = rtl_priv(hw);
299 u32 last_rssi, tmpval;
300
301 if (pstats->packet_toself || pstats->packet_beacon) {
302 rtlpriv->stats.rssi_calculate_cnt++;
303 if (rtlpriv->stats.ui_rssi.total_num++ >=
304 PHY_RSSI_SLID_WIN_MAX) {
305 rtlpriv->stats.ui_rssi.total_num =
306 PHY_RSSI_SLID_WIN_MAX;
307 last_rssi = rtlpriv->stats.ui_rssi.elements[
308 rtlpriv->stats.ui_rssi.index];
309 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
310 }
311 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
312 rtlpriv->stats.ui_rssi.elements
313 [rtlpriv->stats.ui_rssi.index++] =
314 pstats->signalstrength;
315 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
316 rtlpriv->stats.ui_rssi.index = 0;
317 tmpval = rtlpriv->stats.ui_rssi.total_val /
318 rtlpriv->stats.ui_rssi.total_num;
319 rtlpriv->stats.signal_strength = _rtl92de_translate_todbm(hw,
320 (u8) tmpval);
321 pstats->rssi = rtlpriv->stats.signal_strength;
322 }
323 if (!pstats->is_cck && pstats->packet_toself)
324 rtl92d_loop_over_paths(hw, pstats);
325 }
326
327 static void _rtl92de_update_rxsignalstatistics(struct ieee80211_hw *hw,
328 struct rtl_stats *pstats)
329 {
330 struct rtl_priv *rtlpriv = rtl_priv(hw);
331 int weighting = 0;
332
333 if (rtlpriv->stats.recv_signal_power == 0)
334 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
335 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
336 weighting = 5;
337 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
338 weighting = (-5);
339 rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
340 5 + pstats->recvsignalpower + weighting) / 6;
341 }
342
343 static void _rtl92de_process_pwdb(struct ieee80211_hw *hw,
344 struct rtl_stats *pstats)
345 {
346 struct rtl_priv *rtlpriv = rtl_priv(hw);
347 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
348 long undecorated_smoothed_pwdb;
349
350 if (mac->opmode == NL80211_IFTYPE_ADHOC ||
351 mac->opmode == NL80211_IFTYPE_AP)
352 return;
353 else
354 undecorated_smoothed_pwdb =
355 rtlpriv->dm.undecorated_smoothed_pwdb;
356
357 if (pstats->packet_toself || pstats->packet_beacon) {
358 if (undecorated_smoothed_pwdb < 0)
359 undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
360 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
361 undecorated_smoothed_pwdb =
362 (((undecorated_smoothed_pwdb) *
363 (RX_SMOOTH_FACTOR - 1)) +
364 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
365 undecorated_smoothed_pwdb =
366 undecorated_smoothed_pwdb + 1;
367 } else {
368 undecorated_smoothed_pwdb =
369 (((undecorated_smoothed_pwdb) *
370 (RX_SMOOTH_FACTOR - 1)) +
371 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
372 }
373 rtlpriv->dm.undecorated_smoothed_pwdb =
374 undecorated_smoothed_pwdb;
375 _rtl92de_update_rxsignalstatistics(hw, pstats);
376 }
377 }
378
379 static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
380 struct rtl_stats *pstats)
381 {
382 struct rtl_priv *rtlpriv = rtl_priv(hw);
383 int stream;
384
385 for (stream = 0; stream < 2; stream++) {
386 if (pstats->rx_mimo_signalquality[stream] != -1) {
387 if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
388 rtlpriv->stats.rx_evm_percentage[stream] =
389 pstats->rx_mimo_signalquality[stream];
390 }
391 rtlpriv->stats.rx_evm_percentage[stream] =
392 ((rtlpriv->stats.rx_evm_percentage[stream]
393 * (RX_SMOOTH_FACTOR - 1)) +
394 (pstats->rx_mimo_signalquality[stream] * 1)) /
395 (RX_SMOOTH_FACTOR);
396 }
397 }
398 }
399
400 static void _rtl92de_process_ui_link_quality(struct ieee80211_hw *hw,
401 struct rtl_stats *pstats)
402 {
403 struct rtl_priv *rtlpriv = rtl_priv(hw);
404 u32 last_evm, tmpval;
405
406 if (pstats->signalquality == 0)
407 return;
408 if (pstats->packet_toself || pstats->packet_beacon) {
409 if (rtlpriv->stats.ui_link_quality.total_num++ >=
410 PHY_LINKQUALITY_SLID_WIN_MAX) {
411 rtlpriv->stats.ui_link_quality.total_num =
412 PHY_LINKQUALITY_SLID_WIN_MAX;
413 last_evm = rtlpriv->stats.ui_link_quality.elements[
414 rtlpriv->stats.ui_link_quality.index];
415 rtlpriv->stats.ui_link_quality.total_val -= last_evm;
416 }
417 rtlpriv->stats.ui_link_quality.total_val +=
418 pstats->signalquality;
419 rtlpriv->stats.ui_link_quality.elements[
420 rtlpriv->stats.ui_link_quality.index++] =
421 pstats->signalquality;
422 if (rtlpriv->stats.ui_link_quality.index >=
423 PHY_LINKQUALITY_SLID_WIN_MAX)
424 rtlpriv->stats.ui_link_quality.index = 0;
425 tmpval = rtlpriv->stats.ui_link_quality.total_val /
426 rtlpriv->stats.ui_link_quality.total_num;
427 rtlpriv->stats.signal_quality = tmpval;
428 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
429 rtl92d_loop_over_streams(hw, pstats);
430 }
431 }
432
433 static void _rtl92de_process_phyinfo(struct ieee80211_hw *hw,
434 u8 *buffer,
435 struct rtl_stats *pcurrent_stats)
436 {
437
438 if (!pcurrent_stats->packet_matchbssid &&
439 !pcurrent_stats->packet_beacon)
440 return;
441
442 _rtl92de_process_ui_rssi(hw, pcurrent_stats);
443 _rtl92de_process_pwdb(hw, pcurrent_stats);
444 _rtl92de_process_ui_link_quality(hw, pcurrent_stats);
445 }
446
447 static void _rtl92de_translate_rx_signal_stuff(struct ieee80211_hw *hw,
448 struct sk_buff *skb,
449 struct rtl_stats *pstats,
450 struct rx_desc_92d *pdesc,
451 struct rx_fwinfo_92d *p_drvinfo)
452 {
453 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
454 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
455 struct ieee80211_hdr *hdr;
456 u8 *tmp_buf;
457 u8 *praddr;
458 u16 type, cfc;
459 __le16 fc;
460 bool packet_matchbssid, packet_toself, packet_beacon;
461
462 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
463 hdr = (struct ieee80211_hdr *)tmp_buf;
464 fc = hdr->frame_control;
465 cfc = le16_to_cpu(fc);
466 type = WLAN_FC_GET_TYPE(fc);
467 praddr = hdr->addr1;
468 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
469 (!compare_ether_addr(mac->bssid, (cfc & IEEE80211_FCTL_TODS) ?
470 hdr->addr1 : (cfc & IEEE80211_FCTL_FROMDS) ?
471 hdr->addr2 : hdr->addr3)) && (!pstats->hwerror) &&
472 (!pstats->crc) && (!pstats->icv));
473 packet_toself = packet_matchbssid &&
474 (!compare_ether_addr(praddr, rtlefuse->dev_addr));
475 if (ieee80211_is_beacon(fc))
476 packet_beacon = true;
477 _rtl92de_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
478 packet_matchbssid, packet_toself,
479 packet_beacon);
480 _rtl92de_process_phyinfo(hw, tmp_buf, pstats);
481 }
482
483 bool rtl92de_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
484 struct ieee80211_rx_status *rx_status,
485 u8 *p_desc, struct sk_buff *skb)
486 {
487 struct rx_fwinfo_92d *p_drvinfo;
488 struct rx_desc_92d *pdesc = (struct rx_desc_92d *)p_desc;
489 u32 phystatus = GET_RX_DESC_PHYST(pdesc);
490
491 stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
492 stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
493 RX_DRV_INFO_SIZE_UNIT;
494 stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
495 stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
496 stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
497 stats->hwerror = (stats->crc | stats->icv);
498 stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
499 stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
500 stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
501 stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
502 stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
503 && (GET_RX_DESC_FAGGR(pdesc) == 1));
504 stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
505 stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
506 rx_status->freq = hw->conf.channel->center_freq;
507 rx_status->band = hw->conf.channel->band;
508 if (GET_RX_DESC_CRC32(pdesc))
509 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
510 if (!GET_RX_DESC_SWDEC(pdesc))
511 rx_status->flag |= RX_FLAG_DECRYPTED;
512 if (GET_RX_DESC_BW(pdesc))
513 rx_status->flag |= RX_FLAG_40MHZ;
514 if (GET_RX_DESC_RXHT(pdesc))
515 rx_status->flag |= RX_FLAG_HT;
516 rx_status->flag |= RX_FLAG_MACTIME_MPDU;
517 if (stats->decrypted)
518 rx_status->flag |= RX_FLAG_DECRYPTED;
519 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
520 (bool)GET_RX_DESC_RXHT(pdesc),
521 (u8)GET_RX_DESC_RXMCS(pdesc),
522 (bool)GET_RX_DESC_PAGGR(pdesc));
523 rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
524 if (phystatus) {
525 p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
526 stats->rx_bufshift);
527 _rtl92de_translate_rx_signal_stuff(hw,
528 skb, stats, pdesc,
529 p_drvinfo);
530 }
531 /*rx_status->qual = stats->signal; */
532 rx_status->signal = stats->rssi + 10;
533 /*rx_status->noise = -stats->noise; */
534 return true;
535 }
536
537 static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
538 u8 *virtualaddress)
539 {
540 memset(virtualaddress, 0, 8);
541
542 SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
543 SET_EARLYMODE_LEN0(virtualaddress, ptcb_desc->empkt_len[0]);
544 SET_EARLYMODE_LEN1(virtualaddress, ptcb_desc->empkt_len[1]);
545 SET_EARLYMODE_LEN2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
546 SET_EARLYMODE_LEN2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
547 SET_EARLYMODE_LEN3(virtualaddress, ptcb_desc->empkt_len[3]);
548 SET_EARLYMODE_LEN4(virtualaddress, ptcb_desc->empkt_len[4]);
549 }
550
551 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
552 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
553 struct ieee80211_tx_info *info, struct sk_buff *skb,
554 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
555 {
556 struct rtl_priv *rtlpriv = rtl_priv(hw);
557 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
558 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
559 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
560 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
561 struct ieee80211_sta *sta = info->control.sta;
562 u8 *pdesc = (u8 *) pdesc_tx;
563 u16 seq_number;
564 __le16 fc = hdr->frame_control;
565 unsigned int buf_len = 0;
566 unsigned int skb_len = skb->len;
567 u8 fw_qsel = _rtl92de_map_hwqueue_to_fwqueue(skb, hw_queue);
568 bool firstseg = ((hdr->seq_ctrl &
569 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
570 bool lastseg = ((hdr->frame_control &
571 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
572 dma_addr_t mapping;
573 u8 bw_40 = 0;
574
575 if (mac->opmode == NL80211_IFTYPE_STATION) {
576 bw_40 = mac->bw_40;
577 } else if (mac->opmode == NL80211_IFTYPE_AP ||
578 mac->opmode == NL80211_IFTYPE_ADHOC) {
579 if (sta)
580 bw_40 = sta->ht_cap.cap &
581 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
582 }
583 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
584 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
585 /* reserve 8 byte for AMPDU early mode */
586 if (rtlhal->earlymode_enable) {
587 skb_push(skb, EM_HDR_LEN);
588 memset(skb->data, 0, EM_HDR_LEN);
589 }
590 buf_len = skb->len;
591 mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
592 PCI_DMA_TODEVICE);
593 CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92d));
594 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
595 firstseg = true;
596 lastseg = true;
597 }
598 if (firstseg) {
599 if (rtlhal->earlymode_enable) {
600 SET_TX_DESC_PKT_OFFSET(pdesc, 1);
601 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
602 EM_HDR_LEN);
603 if (ptcb_desc->empkt_num) {
604 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
605 ("Insert 8 byte.pTcb->EMPktNum:%d\n",
606 ptcb_desc->empkt_num));
607 _rtl92de_insert_emcontent(ptcb_desc,
608 (u8 *)(skb->data));
609 }
610 } else {
611 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
612 }
613 /* 5G have no CCK rate */
614 if (rtlhal->current_bandtype == BAND_ON_5G)
615 if (ptcb_desc->hw_rate < DESC92_RATE6M)
616 ptcb_desc->hw_rate = DESC92_RATE6M;
617 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
618 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
619 SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
620
621 if (rtlhal->macphymode == DUALMAC_DUALPHY &&
622 ptcb_desc->hw_rate == DESC92_RATEMCS7)
623 SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
624
625 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
626 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
627 SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
628 }
629 SET_TX_DESC_SEQ(pdesc, seq_number);
630 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
631 !ptcb_desc->cts_enable) ? 1 : 0));
632 SET_TX_DESC_HW_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable
633 || ptcb_desc->cts_enable) ? 1 : 0));
634 SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
635 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
636 /* 5G have no CCK rate */
637 if (rtlhal->current_bandtype == BAND_ON_5G)
638 if (ptcb_desc->rts_rate < DESC92_RATE6M)
639 ptcb_desc->rts_rate = DESC92_RATE6M;
640 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
641 SET_TX_DESC_RTS_BW(pdesc, 0);
642 SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
643 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
644 DESC92_RATE54M) ?
645 (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
646 (ptcb_desc->rts_use_shortgi ? 1 : 0)));
647 if (bw_40) {
648 if (ptcb_desc->packet_bw) {
649 SET_TX_DESC_DATA_BW(pdesc, 1);
650 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
651 } else {
652 SET_TX_DESC_DATA_BW(pdesc, 0);
653 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
654 mac->cur_40_prime_sc);
655 }
656 } else {
657 SET_TX_DESC_DATA_BW(pdesc, 0);
658 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
659 }
660 SET_TX_DESC_LINIP(pdesc, 0);
661 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb_len);
662 if (sta) {
663 u8 ampdu_density = sta->ht_cap.ampdu_density;
664 SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
665 }
666 if (info->control.hw_key) {
667 struct ieee80211_key_conf *keyconf;
668
669 keyconf = info->control.hw_key;
670 switch (keyconf->cipher) {
671 case WLAN_CIPHER_SUITE_WEP40:
672 case WLAN_CIPHER_SUITE_WEP104:
673 case WLAN_CIPHER_SUITE_TKIP:
674 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
675 break;
676 case WLAN_CIPHER_SUITE_CCMP:
677 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
678 break;
679 default:
680 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
681 break;
682
683 }
684 }
685 SET_TX_DESC_PKT_ID(pdesc, 0);
686 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
687 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
688 SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
689 SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
690 1 : 0);
691 SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
692
693 /* Set TxRate and RTSRate in TxDesc */
694 /* This prevent Tx initial rate of new-coming packets */
695 /* from being overwritten by retried packet rate.*/
696 if (!ptcb_desc->use_driver_rate) {
697 SET_TX_DESC_RTS_RATE(pdesc, 0x08);
698 /* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
699 }
700 if (ieee80211_is_data_qos(fc)) {
701 if (mac->rdg_en) {
702 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
703 ("Enable RDG function.\n"));
704 SET_TX_DESC_RDG_ENABLE(pdesc, 1);
705 SET_TX_DESC_HTC(pdesc, 1);
706 }
707 }
708 }
709
710 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
711 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
712 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) buf_len);
713 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
714 if (rtlpriv->dm.useramask) {
715 SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
716 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
717 } else {
718 SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
719 SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
720 }
721 if (ieee80211_is_data_qos(fc))
722 SET_TX_DESC_QOS(pdesc, 1);
723
724 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
725 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
726 SET_TX_DESC_PKT_ID(pdesc, 8);
727 }
728 SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
729 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
730 }
731
732 void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw,
733 u8 *pdesc, bool firstseg,
734 bool lastseg, struct sk_buff *skb)
735 {
736 struct rtl_priv *rtlpriv = rtl_priv(hw);
737 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
738 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
739 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
740 u8 fw_queue = QSLT_BEACON;
741 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
742 skb->data, skb->len, PCI_DMA_TODEVICE);
743 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
744 __le16 fc = hdr->frame_control;
745
746 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
747 if (firstseg)
748 SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
749 /* 5G have no CCK rate
750 * Caution: The macros below are multi-line expansions.
751 * The braces are needed no matter what checkpatch says
752 */
753 if (rtlhal->current_bandtype == BAND_ON_5G) {
754 SET_TX_DESC_TX_RATE(pdesc, DESC92_RATE6M);
755 } else {
756 SET_TX_DESC_TX_RATE(pdesc, DESC92_RATE1M);
757 }
758 SET_TX_DESC_SEQ(pdesc, 0);
759 SET_TX_DESC_LINIP(pdesc, 0);
760 SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
761 SET_TX_DESC_FIRST_SEG(pdesc, 1);
762 SET_TX_DESC_LAST_SEG(pdesc, 1);
763 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) (skb->len));
764 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
765 SET_TX_DESC_RATE_ID(pdesc, 7);
766 SET_TX_DESC_MACID(pdesc, 0);
767 SET_TX_DESC_PKT_SIZE((u8 *) pdesc, (u16) (skb->len));
768 SET_TX_DESC_FIRST_SEG(pdesc, 1);
769 SET_TX_DESC_LAST_SEG(pdesc, 1);
770 SET_TX_DESC_OFFSET(pdesc, 0x20);
771 SET_TX_DESC_USE_RATE(pdesc, 1);
772
773 if (!ieee80211_is_data_qos(fc) && ppsc->fwctrl_lps) {
774 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
775 SET_TX_DESC_PKT_ID(pdesc, 8);
776 }
777
778 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
779 "H2C Tx Cmd Content\n", pdesc, TX_DESC_SIZE);
780 wmb();
781 SET_TX_DESC_OWN(pdesc, 1);
782 }
783
784 void rtl92de_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
785 {
786 if (istx) {
787 switch (desc_name) {
788 case HW_DESC_OWN:
789 wmb();
790 SET_TX_DESC_OWN(pdesc, 1);
791 break;
792 case HW_DESC_TX_NEXTDESC_ADDR:
793 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
794 break;
795 default:
796 RT_ASSERT(false, ("ERR txdesc :%d"
797 " not process\n", desc_name));
798 break;
799 }
800 } else {
801 switch (desc_name) {
802 case HW_DESC_RXOWN:
803 wmb();
804 SET_RX_DESC_OWN(pdesc, 1);
805 break;
806 case HW_DESC_RXBUFF_ADDR:
807 SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
808 break;
809 case HW_DESC_RXPKT_LEN:
810 SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
811 break;
812 case HW_DESC_RXERO:
813 SET_RX_DESC_EOR(pdesc, 1);
814 break;
815 default:
816 RT_ASSERT(false, ("ERR rxdesc :%d "
817 "not process\n", desc_name));
818 break;
819 }
820 }
821 }
822
823 u32 rtl92de_get_desc(u8 *p_desc, bool istx, u8 desc_name)
824 {
825 u32 ret = 0;
826
827 if (istx) {
828 switch (desc_name) {
829 case HW_DESC_OWN:
830 ret = GET_TX_DESC_OWN(p_desc);
831 break;
832 case HW_DESC_TXBUFF_ADDR:
833 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
834 break;
835 default:
836 RT_ASSERT(false, ("ERR txdesc :%d "
837 "not process\n", desc_name));
838 break;
839 }
840 } else {
841 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
842 switch (desc_name) {
843 case HW_DESC_OWN:
844 ret = GET_RX_DESC_OWN(pdesc);
845 break;
846 case HW_DESC_RXPKT_LEN:
847 ret = GET_RX_DESC_PKT_LEN(pdesc);
848 break;
849 default:
850 RT_ASSERT(false, ("ERR rxdesc :%d "
851 "not process\n", desc_name));
852 break;
853 }
854 }
855 return ret;
856 }
857
858 void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
859 {
860 struct rtl_priv *rtlpriv = rtl_priv(hw);
861 if (hw_queue == BEACON_QUEUE)
862 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
863 else
864 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
865 BIT(0) << (hw_queue));
866 }