xref: /linux/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c (revision e5c86679d5e864947a52fb31e45a425dea3e7fa9)
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  * The full GNU General Public License is included in this distribution in the
15  * file called LICENSE.
16  *
17  * Contact Information:
18  * wlanfae <wlanfae@realtek.com>
19  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20  * Hsinchu 300, Taiwan.
21  *
22  * Larry Finger <Larry.Finger@lwfinger.net>
23  *
24  *****************************************************************************/
25 
26 #include "../wifi.h"
27 #include "../pci.h"
28 #include "../base.h"
29 #include "reg.h"
30 #include "def.h"
31 #include "phy.h"
32 #include "trx.h"
33 #include "led.h"
34 
35 static u8 _rtl92de_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
36 {
37 	__le16 fc = rtl_get_fc(skb);
38 
39 	if (unlikely(ieee80211_is_beacon(fc)))
40 		return QSLT_BEACON;
41 	if (ieee80211_is_mgmt(fc))
42 		return QSLT_MGNT;
43 
44 	return skb->priority;
45 }
46 
47 static u8 _rtl92d_query_rxpwrpercentage(s8 antpower)
48 {
49 	if ((antpower <= -100) || (antpower >= 20))
50 		return 0;
51 	else if (antpower >= 0)
52 		return 100;
53 	else
54 		return 100 + antpower;
55 }
56 
57 static u8 _rtl92d_evm_db_to_percentage(s8 value)
58 {
59 	s8 ret_val = value;
60 
61 	if (ret_val >= 0)
62 		ret_val = 0;
63 	if (ret_val <= -33)
64 		ret_val = -33;
65 	ret_val = 0 - ret_val;
66 	ret_val *= 3;
67 	if (ret_val == 99)
68 		ret_val = 100;
69 	return ret_val;
70 }
71 
72 static long _rtl92de_translate_todbm(struct ieee80211_hw *hw,
73 				     u8 signal_strength_index)
74 {
75 	long signal_power;
76 
77 	signal_power = (long)((signal_strength_index + 1) >> 1);
78 	signal_power -= 95;
79 	return signal_power;
80 }
81 
82 static long _rtl92de_signal_scale_mapping(struct ieee80211_hw *hw, long currsig)
83 {
84 	long retsig;
85 
86 	if (currsig >= 61 && currsig <= 100)
87 		retsig = 90 + ((currsig - 60) / 4);
88 	else if (currsig >= 41 && currsig <= 60)
89 		retsig = 78 + ((currsig - 40) / 2);
90 	else if (currsig >= 31 && currsig <= 40)
91 		retsig = 66 + (currsig - 30);
92 	else if (currsig >= 21 && currsig <= 30)
93 		retsig = 54 + (currsig - 20);
94 	else if (currsig >= 5 && currsig <= 20)
95 		retsig = 42 + (((currsig - 5) * 2) / 3);
96 	else if (currsig == 4)
97 		retsig = 36;
98 	else if (currsig == 3)
99 		retsig = 27;
100 	else if (currsig == 2)
101 		retsig = 18;
102 	else if (currsig == 1)
103 		retsig = 9;
104 	else
105 		retsig = currsig;
106 	return retsig;
107 }
108 
109 static void _rtl92de_query_rxphystatus(struct ieee80211_hw *hw,
110 				       struct rtl_stats *pstats,
111 				       struct rx_desc_92d *pdesc,
112 				       struct rx_fwinfo_92d *p_drvinfo,
113 				       bool packet_match_bssid,
114 				       bool packet_toself,
115 				       bool packet_beacon)
116 {
117 	struct rtl_priv *rtlpriv = rtl_priv(hw);
118 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
119 	struct phy_sts_cck_8192d *cck_buf;
120 	s8 rx_pwr_all, rx_pwr[4];
121 	u8 rf_rx_num = 0, evm, pwdb_all;
122 	u8 i, max_spatial_stream;
123 	u32 rssi, total_rssi = 0;
124 	bool is_cck_rate;
125 
126 	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
127 	pstats->packet_matchbssid = packet_match_bssid;
128 	pstats->packet_toself = packet_toself;
129 	pstats->packet_beacon = packet_beacon;
130 	pstats->is_cck = is_cck_rate;
131 	pstats->rx_mimo_sig_qual[0] = -1;
132 	pstats->rx_mimo_sig_qual[1] = -1;
133 
134 	if (is_cck_rate) {
135 		u8 report, cck_highpwr;
136 		cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
137 		if (ppsc->rfpwr_state == ERFON)
138 			cck_highpwr = (u8) rtl_get_bbreg(hw,
139 						 RFPGA0_XA_HSSIPARAMETER2,
140 						 BIT(9));
141 		else
142 			cck_highpwr = false;
143 		if (!cck_highpwr) {
144 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
145 			report = cck_buf->cck_agc_rpt & 0xc0;
146 			report = report >> 6;
147 			switch (report) {
148 			case 0x3:
149 				rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
150 				break;
151 			case 0x2:
152 				rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
153 				break;
154 			case 0x1:
155 				rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
156 				break;
157 			case 0x0:
158 				rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
159 				break;
160 			}
161 		} else {
162 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
163 			report = p_drvinfo->cfosho[0] & 0x60;
164 			report = report >> 5;
165 			switch (report) {
166 			case 0x3:
167 				rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
168 				break;
169 			case 0x2:
170 				rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
171 				break;
172 			case 0x1:
173 				rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
174 				break;
175 			case 0x0:
176 				rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
177 				break;
178 			}
179 		}
180 		pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
181 		/* CCK gain is smaller than OFDM/MCS gain,  */
182 		/* so we add gain diff by experiences, the val is 6 */
183 		pwdb_all += 6;
184 		if (pwdb_all > 100)
185 			pwdb_all = 100;
186 		/* modify the offset to make the same gain index with OFDM. */
187 		if (pwdb_all > 34 && pwdb_all <= 42)
188 			pwdb_all -= 2;
189 		else if (pwdb_all > 26 && pwdb_all <= 34)
190 			pwdb_all -= 6;
191 		else if (pwdb_all > 14 && pwdb_all <= 26)
192 			pwdb_all -= 8;
193 		else if (pwdb_all > 4 && pwdb_all <= 14)
194 			pwdb_all -= 4;
195 		pstats->rx_pwdb_all = pwdb_all;
196 		pstats->recvsignalpower = rx_pwr_all;
197 		if (packet_match_bssid) {
198 			u8 sq;
199 			if (pstats->rx_pwdb_all > 40) {
200 				sq = 100;
201 			} else {
202 				sq = cck_buf->sq_rpt;
203 				if (sq > 64)
204 					sq = 0;
205 				else if (sq < 20)
206 					sq = 100;
207 				else
208 					sq = ((64 - sq) * 100) / 44;
209 			}
210 			pstats->signalquality = sq;
211 			pstats->rx_mimo_sig_qual[0] = sq;
212 			pstats->rx_mimo_sig_qual[1] = -1;
213 		}
214 	} else {
215 		rtlpriv->dm.rfpath_rxenable[0] = true;
216 		rtlpriv->dm.rfpath_rxenable[1] = true;
217 		for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
218 			if (rtlpriv->dm.rfpath_rxenable[i])
219 				rf_rx_num++;
220 			rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
221 				    - 110;
222 			rssi = _rtl92d_query_rxpwrpercentage(rx_pwr[i]);
223 			total_rssi += rssi;
224 			rtlpriv->stats.rx_snr_db[i] =
225 					 (long)(p_drvinfo->rxsnr[i] / 2);
226 			if (packet_match_bssid)
227 				pstats->rx_mimo_signalstrength[i] = (u8) rssi;
228 		}
229 		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
230 		pwdb_all = _rtl92d_query_rxpwrpercentage(rx_pwr_all);
231 		pstats->rx_pwdb_all = pwdb_all;
232 		pstats->rxpower = rx_pwr_all;
233 		pstats->recvsignalpower = rx_pwr_all;
234 		if (pdesc->rxht && pdesc->rxmcs >= DESC_RATEMCS8 &&
235 		    pdesc->rxmcs <= DESC_RATEMCS15)
236 			max_spatial_stream = 2;
237 		else
238 			max_spatial_stream = 1;
239 		for (i = 0; i < max_spatial_stream; i++) {
240 			evm = _rtl92d_evm_db_to_percentage(p_drvinfo->rxevm[i]);
241 			if (packet_match_bssid) {
242 				if (i == 0)
243 					pstats->signalquality =
244 						 (u8)(evm & 0xff);
245 				pstats->rx_mimo_sig_qual[i] =
246 						 (u8)(evm & 0xff);
247 			}
248 		}
249 	}
250 	if (is_cck_rate)
251 		pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
252 				pwdb_all));
253 	else if (rf_rx_num != 0)
254 		pstats->signalstrength = (u8)(_rtl92de_signal_scale_mapping(hw,
255 				total_rssi /= rf_rx_num));
256 }
257 
258 static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
259 				   struct rtl_stats *pstats)
260 {
261 	struct rtl_priv *rtlpriv = rtl_priv(hw);
262 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
263 	u8 rfpath;
264 
265 	for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
266 	     rfpath++) {
267 		if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
268 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
269 			    pstats->rx_mimo_signalstrength[rfpath];
270 
271 		}
272 		if (pstats->rx_mimo_signalstrength[rfpath] >
273 		    rtlpriv->stats.rx_rssi_percentage[rfpath]) {
274 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
275 			    ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
276 			      (RX_SMOOTH_FACTOR - 1)) +
277 			     (pstats->rx_mimo_signalstrength[rfpath])) /
278 			    (RX_SMOOTH_FACTOR);
279 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
280 			    rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
281 		} else {
282 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
283 			    ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
284 			      (RX_SMOOTH_FACTOR - 1)) +
285 			     (pstats->rx_mimo_signalstrength[rfpath])) /
286 			    (RX_SMOOTH_FACTOR);
287 		}
288 	}
289 }
290 
291 static void _rtl92de_process_ui_rssi(struct ieee80211_hw *hw,
292 				     struct rtl_stats *pstats)
293 {
294 	struct rtl_priv *rtlpriv = rtl_priv(hw);
295 	u32 last_rssi, tmpval;
296 
297 	if (pstats->packet_toself || pstats->packet_beacon) {
298 		rtlpriv->stats.rssi_calculate_cnt++;
299 		if (rtlpriv->stats.ui_rssi.total_num++ >=
300 		    PHY_RSSI_SLID_WIN_MAX) {
301 			rtlpriv->stats.ui_rssi.total_num =
302 						 PHY_RSSI_SLID_WIN_MAX;
303 			last_rssi = rtlpriv->stats.ui_rssi.elements[
304 				rtlpriv->stats.ui_rssi.index];
305 			rtlpriv->stats.ui_rssi.total_val -= last_rssi;
306 		}
307 		rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
308 		rtlpriv->stats.ui_rssi.elements
309 			[rtlpriv->stats.ui_rssi.index++] =
310 			pstats->signalstrength;
311 		if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
312 			rtlpriv->stats.ui_rssi.index = 0;
313 		tmpval = rtlpriv->stats.ui_rssi.total_val /
314 			rtlpriv->stats.ui_rssi.total_num;
315 		rtlpriv->stats.signal_strength = _rtl92de_translate_todbm(hw,
316 			(u8) tmpval);
317 		pstats->rssi = rtlpriv->stats.signal_strength;
318 	}
319 	if (!pstats->is_cck && pstats->packet_toself)
320 		rtl92d_loop_over_paths(hw, pstats);
321 }
322 
323 static void _rtl92de_update_rxsignalstatistics(struct ieee80211_hw *hw,
324 					       struct rtl_stats *pstats)
325 {
326 	struct rtl_priv *rtlpriv = rtl_priv(hw);
327 	int weighting = 0;
328 
329 	if (rtlpriv->stats.recv_signal_power == 0)
330 		rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
331 	if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
332 		weighting = 5;
333 	else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
334 		weighting = (-5);
335 	rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
336 		5 + pstats->recvsignalpower + weighting) / 6;
337 }
338 
339 static void _rtl92de_process_pwdb(struct ieee80211_hw *hw,
340 				  struct rtl_stats *pstats)
341 {
342 	struct rtl_priv *rtlpriv = rtl_priv(hw);
343 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
344 	long undec_sm_pwdb;
345 
346 	if (mac->opmode == NL80211_IFTYPE_ADHOC	||
347 		mac->opmode == NL80211_IFTYPE_AP)
348 		return;
349 	else
350 		undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
351 
352 	if (pstats->packet_toself || pstats->packet_beacon) {
353 		if (undec_sm_pwdb < 0)
354 			undec_sm_pwdb = pstats->rx_pwdb_all;
355 		if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
356 			undec_sm_pwdb = (((undec_sm_pwdb) *
357 			      (RX_SMOOTH_FACTOR - 1)) +
358 			      (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
359 			undec_sm_pwdb = undec_sm_pwdb + 1;
360 		} else {
361 			undec_sm_pwdb = (((undec_sm_pwdb) *
362 			      (RX_SMOOTH_FACTOR - 1)) +
363 			      (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
364 		}
365 		rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
366 		_rtl92de_update_rxsignalstatistics(hw, pstats);
367 	}
368 }
369 
370 static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
371 				     struct rtl_stats *pstats)
372 {
373 	struct rtl_priv *rtlpriv = rtl_priv(hw);
374 	int stream;
375 
376 	for (stream = 0; stream < 2; stream++) {
377 		if (pstats->rx_mimo_sig_qual[stream] != -1) {
378 			if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
379 				rtlpriv->stats.rx_evm_percentage[stream] =
380 				    pstats->rx_mimo_sig_qual[stream];
381 			}
382 			rtlpriv->stats.rx_evm_percentage[stream] =
383 			    ((rtlpriv->stats.rx_evm_percentage[stream]
384 			      * (RX_SMOOTH_FACTOR - 1)) +
385 			     (pstats->rx_mimo_sig_qual[stream] * 1)) /
386 			    (RX_SMOOTH_FACTOR);
387 		}
388 	}
389 }
390 
391 static void _rtl92de_process_ui_link_quality(struct ieee80211_hw *hw,
392 					     struct rtl_stats *pstats)
393 {
394 	struct rtl_priv *rtlpriv = rtl_priv(hw);
395 	u32 last_evm, tmpval;
396 
397 	if (pstats->signalquality == 0)
398 		return;
399 	if (pstats->packet_toself || pstats->packet_beacon) {
400 		if (rtlpriv->stats.ui_link_quality.total_num++ >=
401 		    PHY_LINKQUALITY_SLID_WIN_MAX) {
402 			rtlpriv->stats.ui_link_quality.total_num =
403 			    PHY_LINKQUALITY_SLID_WIN_MAX;
404 			last_evm = rtlpriv->stats.ui_link_quality.elements[
405 				rtlpriv->stats.ui_link_quality.index];
406 			rtlpriv->stats.ui_link_quality.total_val -= last_evm;
407 		}
408 		rtlpriv->stats.ui_link_quality.total_val +=
409 						 pstats->signalquality;
410 		rtlpriv->stats.ui_link_quality.elements[
411 			rtlpriv->stats.ui_link_quality.index++] =
412 						 pstats->signalquality;
413 		if (rtlpriv->stats.ui_link_quality.index >=
414 		    PHY_LINKQUALITY_SLID_WIN_MAX)
415 			rtlpriv->stats.ui_link_quality.index = 0;
416 		tmpval = rtlpriv->stats.ui_link_quality.total_val /
417 		    rtlpriv->stats.ui_link_quality.total_num;
418 		rtlpriv->stats.signal_quality = tmpval;
419 		rtlpriv->stats.last_sigstrength_inpercent = tmpval;
420 		rtl92d_loop_over_streams(hw, pstats);
421 	}
422 }
423 
424 static void _rtl92de_process_phyinfo(struct ieee80211_hw *hw,
425 				     u8 *buffer,
426 				     struct rtl_stats *pcurrent_stats)
427 {
428 
429 	if (!pcurrent_stats->packet_matchbssid &&
430 	    !pcurrent_stats->packet_beacon)
431 		return;
432 
433 	_rtl92de_process_ui_rssi(hw, pcurrent_stats);
434 	_rtl92de_process_pwdb(hw, pcurrent_stats);
435 	_rtl92de_process_ui_link_quality(hw, pcurrent_stats);
436 }
437 
438 static void _rtl92de_translate_rx_signal_stuff(struct ieee80211_hw *hw,
439 					       struct sk_buff *skb,
440 					       struct rtl_stats *pstats,
441 					       struct rx_desc_92d *pdesc,
442 					       struct rx_fwinfo_92d *p_drvinfo)
443 {
444 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
445 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
446 	struct ieee80211_hdr *hdr;
447 	u8 *tmp_buf;
448 	u8 *praddr;
449 	u16 type, cfc;
450 	__le16 fc;
451 	bool packet_matchbssid, packet_toself, packet_beacon = false;
452 
453 	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
454 	hdr = (struct ieee80211_hdr *)tmp_buf;
455 	fc = hdr->frame_control;
456 	cfc = le16_to_cpu(fc);
457 	type = WLAN_FC_GET_TYPE(fc);
458 	praddr = hdr->addr1;
459 	packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
460 	     ether_addr_equal(mac->bssid,
461 			      (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
462 			      (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
463 			      hdr->addr3) &&
464 	     (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
465 	packet_toself = packet_matchbssid &&
466 			ether_addr_equal(praddr, rtlefuse->dev_addr);
467 	if (ieee80211_is_beacon(fc))
468 		packet_beacon = true;
469 	_rtl92de_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
470 				   packet_matchbssid, packet_toself,
471 				   packet_beacon);
472 	_rtl92de_process_phyinfo(hw, tmp_buf, pstats);
473 }
474 
475 bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,	struct rtl_stats *stats,
476 		struct ieee80211_rx_status *rx_status,
477 		u8 *p_desc, struct sk_buff *skb)
478 {
479 	struct rx_fwinfo_92d *p_drvinfo;
480 	struct rx_desc_92d *pdesc = (struct rx_desc_92d *)p_desc;
481 	u32 phystatus = GET_RX_DESC_PHYST(pdesc);
482 
483 	stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
484 	stats->rx_drvinfo_size = (u8) GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
485 				 RX_DRV_INFO_SIZE_UNIT;
486 	stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
487 	stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
488 	stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
489 	stats->hwerror = (stats->crc | stats->icv);
490 	stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
491 	stats->rate = (u8) GET_RX_DESC_RXMCS(pdesc);
492 	stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
493 	stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
494 	stats->isfirst_ampdu = (bool) ((GET_RX_DESC_PAGGR(pdesc) == 1)
495 					 && (GET_RX_DESC_FAGGR(pdesc) == 1));
496 	stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
497 	stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
498 	stats->is_ht = (bool)GET_RX_DESC_RXHT(pdesc);
499 	rx_status->freq = hw->conf.chandef.chan->center_freq;
500 	rx_status->band = hw->conf.chandef.chan->band;
501 	if (GET_RX_DESC_CRC32(pdesc))
502 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
503 	if (!GET_RX_DESC_SWDEC(pdesc))
504 		rx_status->flag |= RX_FLAG_DECRYPTED;
505 	if (GET_RX_DESC_BW(pdesc))
506 		rx_status->flag |= RX_FLAG_40MHZ;
507 	if (GET_RX_DESC_RXHT(pdesc))
508 		rx_status->flag |= RX_FLAG_HT;
509 	rx_status->flag |= RX_FLAG_MACTIME_START;
510 	if (stats->decrypted)
511 		rx_status->flag |= RX_FLAG_DECRYPTED;
512 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
513 						   false, stats->rate);
514 	rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
515 	if (phystatus) {
516 		p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
517 						     stats->rx_bufshift);
518 		_rtl92de_translate_rx_signal_stuff(hw,
519 						   skb, stats, pdesc,
520 						   p_drvinfo);
521 	}
522 	/*rx_status->qual = stats->signal; */
523 	rx_status->signal = stats->recvsignalpower + 10;
524 	return true;
525 }
526 
527 static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
528 				      u8 *virtualaddress)
529 {
530 	memset(virtualaddress, 0, 8);
531 
532 	SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
533 	SET_EARLYMODE_LEN0(virtualaddress, ptcb_desc->empkt_len[0]);
534 	SET_EARLYMODE_LEN1(virtualaddress, ptcb_desc->empkt_len[1]);
535 	SET_EARLYMODE_LEN2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
536 	SET_EARLYMODE_LEN2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
537 	SET_EARLYMODE_LEN3(virtualaddress, ptcb_desc->empkt_len[3]);
538 	SET_EARLYMODE_LEN4(virtualaddress, ptcb_desc->empkt_len[4]);
539 }
540 
541 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
542 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
543 			  u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
544 			  struct ieee80211_sta *sta,
545 			  struct sk_buff *skb,
546 			  u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
547 {
548 	struct rtl_priv *rtlpriv = rtl_priv(hw);
549 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
550 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
551 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
552 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
553 	u8 *pdesc = pdesc_tx;
554 	u16 seq_number;
555 	__le16 fc = hdr->frame_control;
556 	unsigned int buf_len = 0;
557 	unsigned int skb_len = skb->len;
558 	u8 fw_qsel = _rtl92de_map_hwqueue_to_fwqueue(skb, hw_queue);
559 	bool firstseg = ((hdr->seq_ctrl &
560 			cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
561 	bool lastseg = ((hdr->frame_control &
562 			cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
563 	dma_addr_t mapping;
564 	u8 bw_40 = 0;
565 
566 	if (mac->opmode == NL80211_IFTYPE_STATION) {
567 		bw_40 = mac->bw_40;
568 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
569 		mac->opmode == NL80211_IFTYPE_ADHOC) {
570 		if (sta)
571 			bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
572 	}
573 	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
574 	rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
575 	/* reserve 8 byte for AMPDU early mode */
576 	if (rtlhal->earlymode_enable) {
577 		skb_push(skb, EM_HDR_LEN);
578 		memset(skb->data, 0, EM_HDR_LEN);
579 	}
580 	buf_len = skb->len;
581 	mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
582 				 PCI_DMA_TODEVICE);
583 	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
584 		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
585 			 "DMA mapping error\n");
586 		return;
587 	}
588 	CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92d));
589 	if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
590 		firstseg = true;
591 		lastseg = true;
592 	}
593 	if (firstseg) {
594 		if (rtlhal->earlymode_enable) {
595 			SET_TX_DESC_PKT_OFFSET(pdesc, 1);
596 			SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
597 					   EM_HDR_LEN);
598 			if (ptcb_desc->empkt_num) {
599 				RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
600 					 "Insert 8 byte.pTcb->EMPktNum:%d\n",
601 					 ptcb_desc->empkt_num);
602 				_rtl92de_insert_emcontent(ptcb_desc,
603 							  (u8 *)(skb->data));
604 			}
605 		} else {
606 			SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
607 		}
608 		/* 5G have no CCK rate */
609 		if (rtlhal->current_bandtype == BAND_ON_5G)
610 			if (ptcb_desc->hw_rate < DESC_RATE6M)
611 				ptcb_desc->hw_rate = DESC_RATE6M;
612 		SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
613 		if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
614 			SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
615 
616 		if (rtlhal->macphymode == DUALMAC_DUALPHY &&
617 			ptcb_desc->hw_rate == DESC_RATEMCS7)
618 			SET_TX_DESC_DATA_SHORTGI(pdesc, 1);
619 
620 		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
621 			SET_TX_DESC_AGG_ENABLE(pdesc, 1);
622 			SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x14);
623 		}
624 		SET_TX_DESC_SEQ(pdesc, seq_number);
625 		SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
626 				       !ptcb_desc->cts_enable) ? 1 : 0));
627 		SET_TX_DESC_HW_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable
628 					  || ptcb_desc->cts_enable) ? 1 : 0));
629 		SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
630 		SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
631 		/* 5G have no CCK rate */
632 		if (rtlhal->current_bandtype == BAND_ON_5G)
633 			if (ptcb_desc->rts_rate < DESC_RATE6M)
634 				ptcb_desc->rts_rate = DESC_RATE6M;
635 		SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
636 		SET_TX_DESC_RTS_BW(pdesc, 0);
637 		SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
638 		SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
639 			DESC_RATE54M) ?
640 			(ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
641 			(ptcb_desc->rts_use_shortgi ? 1 : 0)));
642 		if (bw_40) {
643 			if (ptcb_desc->packet_bw) {
644 				SET_TX_DESC_DATA_BW(pdesc, 1);
645 				SET_TX_DESC_TX_SUB_CARRIER(pdesc, 3);
646 			} else {
647 				SET_TX_DESC_DATA_BW(pdesc, 0);
648 				SET_TX_DESC_TX_SUB_CARRIER(pdesc,
649 							mac->cur_40_prime_sc);
650 			}
651 		} else {
652 			SET_TX_DESC_DATA_BW(pdesc, 0);
653 			SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
654 		}
655 		SET_TX_DESC_LINIP(pdesc, 0);
656 		SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb_len);
657 		if (sta) {
658 			u8 ampdu_density = sta->ht_cap.ampdu_density;
659 			SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
660 		}
661 		if (info->control.hw_key) {
662 			struct ieee80211_key_conf *keyconf;
663 
664 			keyconf = info->control.hw_key;
665 			switch (keyconf->cipher) {
666 			case WLAN_CIPHER_SUITE_WEP40:
667 			case WLAN_CIPHER_SUITE_WEP104:
668 			case WLAN_CIPHER_SUITE_TKIP:
669 				SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
670 				break;
671 			case WLAN_CIPHER_SUITE_CCMP:
672 				SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
673 				break;
674 			default:
675 				SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
676 				break;
677 
678 			}
679 		}
680 		SET_TX_DESC_PKT_ID(pdesc, 0);
681 		SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
682 		SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
683 		SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
684 		SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
685 				       1 : 0);
686 		SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
687 
688 		/* Set TxRate and RTSRate in TxDesc  */
689 		/* This prevent Tx initial rate of new-coming packets */
690 		/* from being overwritten by retried  packet rate.*/
691 		if (!ptcb_desc->use_driver_rate) {
692 			SET_TX_DESC_RTS_RATE(pdesc, 0x08);
693 			/* SET_TX_DESC_TX_RATE(pdesc, 0x0b); */
694 		}
695 		if (ieee80211_is_data_qos(fc)) {
696 			if (mac->rdg_en) {
697 				RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
698 					 "Enable RDG function\n");
699 				SET_TX_DESC_RDG_ENABLE(pdesc, 1);
700 				SET_TX_DESC_HTC(pdesc, 1);
701 			}
702 		}
703 	}
704 
705 	SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
706 	SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
707 	SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) buf_len);
708 	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
709 	if (rtlpriv->dm.useramask) {
710 		SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
711 		SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
712 	} else {
713 		SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
714 		SET_TX_DESC_MACID(pdesc, ptcb_desc->ratr_index);
715 	}
716 	if (ieee80211_is_data_qos(fc))
717 		SET_TX_DESC_QOS(pdesc, 1);
718 
719 	if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
720 		SET_TX_DESC_HWSEQ_EN(pdesc, 1);
721 		SET_TX_DESC_PKT_ID(pdesc, 8);
722 	}
723 	SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
724 	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
725 }
726 
727 void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw,
728 			     u8 *pdesc, bool firstseg,
729 			     bool lastseg, struct sk_buff *skb)
730 {
731 	struct rtl_priv *rtlpriv = rtl_priv(hw);
732 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
733 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
734 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
735 	u8 fw_queue = QSLT_BEACON;
736 	dma_addr_t mapping = pci_map_single(rtlpci->pdev,
737 		    skb->data, skb->len, PCI_DMA_TODEVICE);
738 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
739 	__le16 fc = hdr->frame_control;
740 
741 	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
742 		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
743 			 "DMA mapping error\n");
744 		return;
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, DESC_RATE6M);
755 	} else {
756 		SET_TX_DESC_TX_RATE(pdesc, DESC_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(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", pdesc, TX_DESC_SIZE);
780 	wmb();
781 	SET_TX_DESC_OWN(pdesc, 1);
782 }
783 
784 void rtl92de_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
785 		      u8 desc_name, u8 *val)
786 {
787 	if (istx) {
788 		switch (desc_name) {
789 		case HW_DESC_OWN:
790 			wmb();
791 			SET_TX_DESC_OWN(pdesc, 1);
792 			break;
793 		case HW_DESC_TX_NEXTDESC_ADDR:
794 			SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
795 			break;
796 		default:
797 			WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
798 				  desc_name);
799 			break;
800 		}
801 	} else {
802 		switch (desc_name) {
803 		case HW_DESC_RXOWN:
804 			wmb();
805 			SET_RX_DESC_OWN(pdesc, 1);
806 			break;
807 		case HW_DESC_RXBUFF_ADDR:
808 			SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *) val);
809 			break;
810 		case HW_DESC_RXPKT_LEN:
811 			SET_RX_DESC_PKT_LEN(pdesc, *(u32 *) val);
812 			break;
813 		case HW_DESC_RXERO:
814 			SET_RX_DESC_EOR(pdesc, 1);
815 			break;
816 		default:
817 			WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
818 				  desc_name);
819 			break;
820 		}
821 	}
822 }
823 
824 u32 rtl92de_get_desc(u8 *p_desc, bool istx, u8 desc_name)
825 {
826 	u32 ret = 0;
827 
828 	if (istx) {
829 		switch (desc_name) {
830 		case HW_DESC_OWN:
831 			ret = GET_TX_DESC_OWN(p_desc);
832 			break;
833 		case HW_DESC_TXBUFF_ADDR:
834 			ret = GET_TX_DESC_TX_BUFFER_ADDRESS(p_desc);
835 			break;
836 		default:
837 			WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
838 				  desc_name);
839 			break;
840 		}
841 	} else {
842 		struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
843 		switch (desc_name) {
844 		case HW_DESC_OWN:
845 			ret = GET_RX_DESC_OWN(pdesc);
846 			break;
847 		case HW_DESC_RXPKT_LEN:
848 			ret = GET_RX_DESC_PKT_LEN(pdesc);
849 			break;
850 		default:
851 			WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
852 				  desc_name);
853 			break;
854 		}
855 	}
856 	return ret;
857 }
858 
859 void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
860 {
861 	struct rtl_priv *rtlpriv = rtl_priv(hw);
862 	if (hw_queue == BEACON_QUEUE)
863 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
864 	else
865 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
866 			       BIT(0) << (hw_queue));
867 }
868