1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
3 
4 #include "../wifi.h"
5 #include "../pci.h"
6 #include "../base.h"
7 #include "../stats.h"
8 #include "reg.h"
9 #include "def.h"
10 #include "phy.h"
11 #include "trx.h"
12 #include "led.h"
13 
14 static u8 _rtl92de_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
15 {
16 	__le16 fc = rtl_get_fc(skb);
17 
18 	if (unlikely(ieee80211_is_beacon(fc)))
19 		return QSLT_BEACON;
20 	if (ieee80211_is_mgmt(fc))
21 		return QSLT_MGNT;
22 
23 	return skb->priority;
24 }
25 
26 static long _rtl92de_translate_todbm(struct ieee80211_hw *hw,
27 				     u8 signal_strength_index)
28 {
29 	long signal_power;
30 
31 	signal_power = (long)((signal_strength_index + 1) >> 1);
32 	signal_power -= 95;
33 	return signal_power;
34 }
35 
36 static void _rtl92de_query_rxphystatus(struct ieee80211_hw *hw,
37 				       struct rtl_stats *pstats,
38 				       struct rx_desc_92d *pdesc,
39 				       struct rx_fwinfo_92d *p_drvinfo,
40 				       bool packet_match_bssid,
41 				       bool packet_toself,
42 				       bool packet_beacon)
43 {
44 	struct rtl_priv *rtlpriv = rtl_priv(hw);
45 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
46 	struct phy_sts_cck_8192d *cck_buf;
47 	s8 rx_pwr_all, rx_pwr[4];
48 	u8 rf_rx_num = 0, evm, pwdb_all;
49 	u8 i, max_spatial_stream;
50 	u32 rssi, total_rssi = 0;
51 	bool is_cck_rate;
52 
53 	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
54 	pstats->packet_matchbssid = packet_match_bssid;
55 	pstats->packet_toself = packet_toself;
56 	pstats->packet_beacon = packet_beacon;
57 	pstats->is_cck = is_cck_rate;
58 	pstats->rx_mimo_sig_qual[0] = -1;
59 	pstats->rx_mimo_sig_qual[1] = -1;
60 
61 	if (is_cck_rate) {
62 		u8 report, cck_highpwr;
63 		cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
64 		if (ppsc->rfpwr_state == ERFON)
65 			cck_highpwr = (u8) rtl_get_bbreg(hw,
66 						 RFPGA0_XA_HSSIPARAMETER2,
67 						 BIT(9));
68 		else
69 			cck_highpwr = false;
70 		if (!cck_highpwr) {
71 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
72 			report = cck_buf->cck_agc_rpt & 0xc0;
73 			report = report >> 6;
74 			switch (report) {
75 			case 0x3:
76 				rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
77 				break;
78 			case 0x2:
79 				rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
80 				break;
81 			case 0x1:
82 				rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
83 				break;
84 			case 0x0:
85 				rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
86 				break;
87 			}
88 		} else {
89 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
90 			report = p_drvinfo->cfosho[0] & 0x60;
91 			report = report >> 5;
92 			switch (report) {
93 			case 0x3:
94 				rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
95 				break;
96 			case 0x2:
97 				rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
98 				break;
99 			case 0x1:
100 				rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
101 				break;
102 			case 0x0:
103 				rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
104 				break;
105 			}
106 		}
107 		pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
108 		/* CCK gain is smaller than OFDM/MCS gain,  */
109 		/* so we add gain diff by experiences, the val is 6 */
110 		pwdb_all += 6;
111 		if (pwdb_all > 100)
112 			pwdb_all = 100;
113 		/* modify the offset to make the same gain index with OFDM. */
114 		if (pwdb_all > 34 && pwdb_all <= 42)
115 			pwdb_all -= 2;
116 		else if (pwdb_all > 26 && pwdb_all <= 34)
117 			pwdb_all -= 6;
118 		else if (pwdb_all > 14 && pwdb_all <= 26)
119 			pwdb_all -= 8;
120 		else if (pwdb_all > 4 && pwdb_all <= 14)
121 			pwdb_all -= 4;
122 		pstats->rx_pwdb_all = pwdb_all;
123 		pstats->recvsignalpower = rx_pwr_all;
124 		if (packet_match_bssid) {
125 			u8 sq;
126 			if (pstats->rx_pwdb_all > 40) {
127 				sq = 100;
128 			} else {
129 				sq = cck_buf->sq_rpt;
130 				if (sq > 64)
131 					sq = 0;
132 				else if (sq < 20)
133 					sq = 100;
134 				else
135 					sq = ((64 - sq) * 100) / 44;
136 			}
137 			pstats->signalquality = sq;
138 			pstats->rx_mimo_sig_qual[0] = sq;
139 			pstats->rx_mimo_sig_qual[1] = -1;
140 		}
141 	} else {
142 		rtlpriv->dm.rfpath_rxenable[0] = true;
143 		rtlpriv->dm.rfpath_rxenable[1] = true;
144 		for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
145 			if (rtlpriv->dm.rfpath_rxenable[i])
146 				rf_rx_num++;
147 			rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
148 				    - 110;
149 			rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
150 			total_rssi += rssi;
151 			rtlpriv->stats.rx_snr_db[i] =
152 					 (long)(p_drvinfo->rxsnr[i] / 2);
153 			if (packet_match_bssid)
154 				pstats->rx_mimo_signalstrength[i] = (u8) rssi;
155 		}
156 		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
157 		pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
158 		pstats->rx_pwdb_all = pwdb_all;
159 		pstats->rxpower = rx_pwr_all;
160 		pstats->recvsignalpower = rx_pwr_all;
161 		if (pdesc->rxht && pdesc->rxmcs >= DESC_RATEMCS8 &&
162 		    pdesc->rxmcs <= DESC_RATEMCS15)
163 			max_spatial_stream = 2;
164 		else
165 			max_spatial_stream = 1;
166 		for (i = 0; i < max_spatial_stream; i++) {
167 			evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
168 			if (packet_match_bssid) {
169 				if (i == 0)
170 					pstats->signalquality =
171 						 (u8)(evm & 0xff);
172 				pstats->rx_mimo_sig_qual[i] =
173 						 (u8)(evm & 0xff);
174 			}
175 		}
176 	}
177 	if (is_cck_rate)
178 		pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
179 				pwdb_all));
180 	else if (rf_rx_num != 0)
181 		pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
182 				total_rssi /= rf_rx_num));
183 }
184 
185 static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
186 				   struct rtl_stats *pstats)
187 {
188 	struct rtl_priv *rtlpriv = rtl_priv(hw);
189 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
190 	u8 rfpath;
191 
192 	for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
193 	     rfpath++) {
194 		if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
195 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
196 			    pstats->rx_mimo_signalstrength[rfpath];
197 
198 		}
199 		if (pstats->rx_mimo_signalstrength[rfpath] >
200 		    rtlpriv->stats.rx_rssi_percentage[rfpath]) {
201 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
202 			    ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
203 			      (RX_SMOOTH_FACTOR - 1)) +
204 			     (pstats->rx_mimo_signalstrength[rfpath])) /
205 			    (RX_SMOOTH_FACTOR);
206 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
207 			    rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
208 		} else {
209 			rtlpriv->stats.rx_rssi_percentage[rfpath] =
210 			    ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
211 			      (RX_SMOOTH_FACTOR - 1)) +
212 			     (pstats->rx_mimo_signalstrength[rfpath])) /
213 			    (RX_SMOOTH_FACTOR);
214 		}
215 	}
216 }
217 
218 static void _rtl92de_process_ui_rssi(struct ieee80211_hw *hw,
219 				     struct rtl_stats *pstats)
220 {
221 	struct rtl_priv *rtlpriv = rtl_priv(hw);
222 	u32 last_rssi, tmpval;
223 
224 	if (pstats->packet_toself || pstats->packet_beacon) {
225 		rtlpriv->stats.rssi_calculate_cnt++;
226 		if (rtlpriv->stats.ui_rssi.total_num++ >=
227 		    PHY_RSSI_SLID_WIN_MAX) {
228 			rtlpriv->stats.ui_rssi.total_num =
229 						 PHY_RSSI_SLID_WIN_MAX;
230 			last_rssi = rtlpriv->stats.ui_rssi.elements[
231 				rtlpriv->stats.ui_rssi.index];
232 			rtlpriv->stats.ui_rssi.total_val -= last_rssi;
233 		}
234 		rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
235 		rtlpriv->stats.ui_rssi.elements
236 			[rtlpriv->stats.ui_rssi.index++] =
237 			pstats->signalstrength;
238 		if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
239 			rtlpriv->stats.ui_rssi.index = 0;
240 		tmpval = rtlpriv->stats.ui_rssi.total_val /
241 			rtlpriv->stats.ui_rssi.total_num;
242 		rtlpriv->stats.signal_strength = _rtl92de_translate_todbm(hw,
243 			(u8) tmpval);
244 		pstats->rssi = rtlpriv->stats.signal_strength;
245 	}
246 	if (!pstats->is_cck && pstats->packet_toself)
247 		rtl92d_loop_over_paths(hw, pstats);
248 }
249 
250 static void _rtl92de_update_rxsignalstatistics(struct ieee80211_hw *hw,
251 					       struct rtl_stats *pstats)
252 {
253 	struct rtl_priv *rtlpriv = rtl_priv(hw);
254 	int weighting = 0;
255 
256 	if (rtlpriv->stats.recv_signal_power == 0)
257 		rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
258 	if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
259 		weighting = 5;
260 	else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
261 		weighting = (-5);
262 	rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
263 		5 + pstats->recvsignalpower + weighting) / 6;
264 }
265 
266 static void _rtl92de_process_pwdb(struct ieee80211_hw *hw,
267 				  struct rtl_stats *pstats)
268 {
269 	struct rtl_priv *rtlpriv = rtl_priv(hw);
270 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
271 	long undec_sm_pwdb;
272 
273 	if (mac->opmode == NL80211_IFTYPE_ADHOC	||
274 		mac->opmode == NL80211_IFTYPE_AP)
275 		return;
276 	else
277 		undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
278 
279 	if (pstats->packet_toself || pstats->packet_beacon) {
280 		if (undec_sm_pwdb < 0)
281 			undec_sm_pwdb = pstats->rx_pwdb_all;
282 		if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
283 			undec_sm_pwdb = (((undec_sm_pwdb) *
284 			      (RX_SMOOTH_FACTOR - 1)) +
285 			      (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
286 			undec_sm_pwdb = undec_sm_pwdb + 1;
287 		} else {
288 			undec_sm_pwdb = (((undec_sm_pwdb) *
289 			      (RX_SMOOTH_FACTOR - 1)) +
290 			      (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
291 		}
292 		rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
293 		_rtl92de_update_rxsignalstatistics(hw, pstats);
294 	}
295 }
296 
297 static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
298 				     struct rtl_stats *pstats)
299 {
300 	struct rtl_priv *rtlpriv = rtl_priv(hw);
301 	int stream;
302 
303 	for (stream = 0; stream < 2; stream++) {
304 		if (pstats->rx_mimo_sig_qual[stream] != -1) {
305 			if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
306 				rtlpriv->stats.rx_evm_percentage[stream] =
307 				    pstats->rx_mimo_sig_qual[stream];
308 			}
309 			rtlpriv->stats.rx_evm_percentage[stream] =
310 			    ((rtlpriv->stats.rx_evm_percentage[stream]
311 			      * (RX_SMOOTH_FACTOR - 1)) +
312 			     (pstats->rx_mimo_sig_qual[stream] * 1)) /
313 			    (RX_SMOOTH_FACTOR);
314 		}
315 	}
316 }
317 
318 static void _rtl92de_process_ui_link_quality(struct ieee80211_hw *hw,
319 					     struct rtl_stats *pstats)
320 {
321 	struct rtl_priv *rtlpriv = rtl_priv(hw);
322 	u32 last_evm, tmpval;
323 
324 	if (pstats->signalquality == 0)
325 		return;
326 	if (pstats->packet_toself || pstats->packet_beacon) {
327 		if (rtlpriv->stats.ui_link_quality.total_num++ >=
328 		    PHY_LINKQUALITY_SLID_WIN_MAX) {
329 			rtlpriv->stats.ui_link_quality.total_num =
330 			    PHY_LINKQUALITY_SLID_WIN_MAX;
331 			last_evm = rtlpriv->stats.ui_link_quality.elements[
332 				rtlpriv->stats.ui_link_quality.index];
333 			rtlpriv->stats.ui_link_quality.total_val -= last_evm;
334 		}
335 		rtlpriv->stats.ui_link_quality.total_val +=
336 						 pstats->signalquality;
337 		rtlpriv->stats.ui_link_quality.elements[
338 			rtlpriv->stats.ui_link_quality.index++] =
339 						 pstats->signalquality;
340 		if (rtlpriv->stats.ui_link_quality.index >=
341 		    PHY_LINKQUALITY_SLID_WIN_MAX)
342 			rtlpriv->stats.ui_link_quality.index = 0;
343 		tmpval = rtlpriv->stats.ui_link_quality.total_val /
344 		    rtlpriv->stats.ui_link_quality.total_num;
345 		rtlpriv->stats.signal_quality = tmpval;
346 		rtlpriv->stats.last_sigstrength_inpercent = tmpval;
347 		rtl92d_loop_over_streams(hw, pstats);
348 	}
349 }
350 
351 static void _rtl92de_process_phyinfo(struct ieee80211_hw *hw,
352 				     u8 *buffer,
353 				     struct rtl_stats *pcurrent_stats)
354 {
355 
356 	if (!pcurrent_stats->packet_matchbssid &&
357 	    !pcurrent_stats->packet_beacon)
358 		return;
359 
360 	_rtl92de_process_ui_rssi(hw, pcurrent_stats);
361 	_rtl92de_process_pwdb(hw, pcurrent_stats);
362 	_rtl92de_process_ui_link_quality(hw, pcurrent_stats);
363 }
364 
365 static void _rtl92de_translate_rx_signal_stuff(struct ieee80211_hw *hw,
366 					       struct sk_buff *skb,
367 					       struct rtl_stats *pstats,
368 					       struct rx_desc_92d *pdesc,
369 					       struct rx_fwinfo_92d *p_drvinfo)
370 {
371 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
372 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
373 	struct ieee80211_hdr *hdr;
374 	u8 *tmp_buf;
375 	u8 *praddr;
376 	u16 type, cfc;
377 	__le16 fc;
378 	bool packet_matchbssid, packet_toself, packet_beacon = false;
379 
380 	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
381 	hdr = (struct ieee80211_hdr *)tmp_buf;
382 	fc = hdr->frame_control;
383 	cfc = le16_to_cpu(fc);
384 	type = WLAN_FC_GET_TYPE(fc);
385 	praddr = hdr->addr1;
386 	packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
387 	     ether_addr_equal(mac->bssid,
388 			      (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
389 			      (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
390 			      hdr->addr3) &&
391 	     (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
392 	packet_toself = packet_matchbssid &&
393 			ether_addr_equal(praddr, rtlefuse->dev_addr);
394 	if (ieee80211_is_beacon(fc))
395 		packet_beacon = true;
396 	_rtl92de_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
397 				   packet_matchbssid, packet_toself,
398 				   packet_beacon);
399 	_rtl92de_process_phyinfo(hw, tmp_buf, pstats);
400 }
401 
402 bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,	struct rtl_stats *stats,
403 		struct ieee80211_rx_status *rx_status,
404 		u8 *pdesc8, struct sk_buff *skb)
405 {
406 	__le32 *pdesc = (__le32 *)pdesc8;
407 	struct rx_fwinfo_92d *p_drvinfo;
408 	u32 phystatus = get_rx_desc_physt(pdesc);
409 
410 	stats->length = (u16)get_rx_desc_pkt_len(pdesc);
411 	stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) *
412 				 RX_DRV_INFO_SIZE_UNIT;
413 	stats->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
414 	stats->icv = (u16)get_rx_desc_icv(pdesc);
415 	stats->crc = (u16)get_rx_desc_crc32(pdesc);
416 	stats->hwerror = (stats->crc | stats->icv);
417 	stats->decrypted = !get_rx_desc_swdec(pdesc);
418 	stats->rate = (u8)get_rx_desc_rxmcs(pdesc);
419 	stats->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
420 	stats->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
421 	stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(pdesc) == 1) &&
422 				      (get_rx_desc_faggr(pdesc) == 1));
423 	stats->timestamp_low = get_rx_desc_tsfl(pdesc);
424 	stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(pdesc);
425 	stats->is_ht = (bool)get_rx_desc_rxht(pdesc);
426 	rx_status->freq = hw->conf.chandef.chan->center_freq;
427 	rx_status->band = hw->conf.chandef.chan->band;
428 	if (get_rx_desc_crc32(pdesc))
429 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
430 	if (!get_rx_desc_swdec(pdesc))
431 		rx_status->flag |= RX_FLAG_DECRYPTED;
432 	if (get_rx_desc_bw(pdesc))
433 		rx_status->bw = RATE_INFO_BW_40;
434 	if (get_rx_desc_rxht(pdesc))
435 		rx_status->encoding = RX_ENC_HT;
436 	rx_status->flag |= RX_FLAG_MACTIME_START;
437 	if (stats->decrypted)
438 		rx_status->flag |= RX_FLAG_DECRYPTED;
439 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
440 						   false, stats->rate);
441 	rx_status->mactime = get_rx_desc_tsfl(pdesc);
442 	if (phystatus) {
443 		p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
444 						     stats->rx_bufshift);
445 		_rtl92de_translate_rx_signal_stuff(hw,
446 						   skb, stats,
447 						   (struct rx_desc_92d *)pdesc,
448 						   p_drvinfo);
449 	}
450 	/*rx_status->qual = stats->signal; */
451 	rx_status->signal = stats->recvsignalpower + 10;
452 	return true;
453 }
454 
455 static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
456 				      u8 *virtualaddress8)
457 {
458 	__le32 *virtualaddress = (__le32 *)virtualaddress8;
459 
460 	memset(virtualaddress, 0, 8);
461 
462 	set_earlymode_pktnum(virtualaddress, ptcb_desc->empkt_num);
463 	set_earlymode_len0(virtualaddress, ptcb_desc->empkt_len[0]);
464 	set_earlymode_len1(virtualaddress, ptcb_desc->empkt_len[1]);
465 	set_earlymode_len2_1(virtualaddress, ptcb_desc->empkt_len[2] & 0xF);
466 	set_earlymode_len2_2(virtualaddress, ptcb_desc->empkt_len[2] >> 4);
467 	set_earlymode_len3(virtualaddress, ptcb_desc->empkt_len[3]);
468 	set_earlymode_len4(virtualaddress, ptcb_desc->empkt_len[4]);
469 }
470 
471 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
472 			  struct ieee80211_hdr *hdr, u8 *pdesc8,
473 			  u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
474 			  struct ieee80211_sta *sta,
475 			  struct sk_buff *skb,
476 			  u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
477 {
478 	struct rtl_priv *rtlpriv = rtl_priv(hw);
479 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
480 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
481 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
482 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
483 	__le32 *pdesc = (__le32 *)pdesc8;
484 	u16 seq_number;
485 	__le16 fc = hdr->frame_control;
486 	unsigned int buf_len = 0;
487 	unsigned int skb_len = skb->len;
488 	u8 fw_qsel = _rtl92de_map_hwqueue_to_fwqueue(skb, hw_queue);
489 	bool firstseg = ((hdr->seq_ctrl &
490 			cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
491 	bool lastseg = ((hdr->frame_control &
492 			cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
493 	dma_addr_t mapping;
494 	u8 bw_40 = 0;
495 
496 	if (mac->opmode == NL80211_IFTYPE_STATION) {
497 		bw_40 = mac->bw_40;
498 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
499 		mac->opmode == NL80211_IFTYPE_ADHOC) {
500 		if (sta)
501 			bw_40 = sta->deflink.bandwidth >= IEEE80211_STA_RX_BW_40;
502 	}
503 	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
504 	rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
505 	/* reserve 8 byte for AMPDU early mode */
506 	if (rtlhal->earlymode_enable) {
507 		skb_push(skb, EM_HDR_LEN);
508 		memset(skb->data, 0, EM_HDR_LEN);
509 	}
510 	buf_len = skb->len;
511 	mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, skb->len,
512 				 DMA_TO_DEVICE);
513 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
514 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
515 			"DMA mapping error\n");
516 		return;
517 	}
518 	clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92d));
519 	if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
520 		firstseg = true;
521 		lastseg = true;
522 	}
523 	if (firstseg) {
524 		if (rtlhal->earlymode_enable) {
525 			set_tx_desc_pkt_offset(pdesc, 1);
526 			set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN +
527 					   EM_HDR_LEN);
528 			if (ptcb_desc->empkt_num) {
529 				rtl_dbg(rtlpriv, COMP_SEND, DBG_LOUD,
530 					"Insert 8 byte.pTcb->EMPktNum:%d\n",
531 					ptcb_desc->empkt_num);
532 				_rtl92de_insert_emcontent(ptcb_desc,
533 							  (u8 *)(skb->data));
534 			}
535 		} else {
536 			set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
537 		}
538 		/* 5G have no CCK rate */
539 		if (rtlhal->current_bandtype == BAND_ON_5G)
540 			if (ptcb_desc->hw_rate < DESC_RATE6M)
541 				ptcb_desc->hw_rate = DESC_RATE6M;
542 		set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate);
543 		if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
544 			set_tx_desc_data_shortgi(pdesc, 1);
545 
546 		if (rtlhal->macphymode == DUALMAC_DUALPHY &&
547 			ptcb_desc->hw_rate == DESC_RATEMCS7)
548 			set_tx_desc_data_shortgi(pdesc, 1);
549 
550 		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
551 			set_tx_desc_agg_enable(pdesc, 1);
552 			set_tx_desc_max_agg_num(pdesc, 0x14);
553 		}
554 		set_tx_desc_seq(pdesc, seq_number);
555 		set_tx_desc_rts_enable(pdesc,
556 				       ((ptcb_desc->rts_enable &&
557 					!ptcb_desc->cts_enable) ? 1 : 0));
558 		set_tx_desc_hw_rts_enable(pdesc, ((ptcb_desc->rts_enable
559 					  || ptcb_desc->cts_enable) ? 1 : 0));
560 		set_tx_desc_cts2self(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
561 		set_tx_desc_rts_stbc(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
562 		/* 5G have no CCK rate */
563 		if (rtlhal->current_bandtype == BAND_ON_5G)
564 			if (ptcb_desc->rts_rate < DESC_RATE6M)
565 				ptcb_desc->rts_rate = DESC_RATE6M;
566 		set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate);
567 		set_tx_desc_rts_bw(pdesc, 0);
568 		set_tx_desc_rts_sc(pdesc, ptcb_desc->rts_sc);
569 		set_tx_desc_rts_short(pdesc, ((ptcb_desc->rts_rate <=
570 			DESC_RATE54M) ?
571 			(ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
572 			(ptcb_desc->rts_use_shortgi ? 1 : 0)));
573 		if (bw_40) {
574 			if (ptcb_desc->packet_bw) {
575 				set_tx_desc_data_bw(pdesc, 1);
576 				set_tx_desc_tx_sub_carrier(pdesc, 3);
577 			} else {
578 				set_tx_desc_data_bw(pdesc, 0);
579 				set_tx_desc_tx_sub_carrier(pdesc,
580 							mac->cur_40_prime_sc);
581 			}
582 		} else {
583 			set_tx_desc_data_bw(pdesc, 0);
584 			set_tx_desc_tx_sub_carrier(pdesc, 0);
585 		}
586 		set_tx_desc_linip(pdesc, 0);
587 		set_tx_desc_pkt_size(pdesc, (u16)skb_len);
588 		if (sta) {
589 			u8 ampdu_density = sta->deflink.ht_cap.ampdu_density;
590 			set_tx_desc_ampdu_density(pdesc, ampdu_density);
591 		}
592 		if (info->control.hw_key) {
593 			struct ieee80211_key_conf *keyconf;
594 
595 			keyconf = info->control.hw_key;
596 			switch (keyconf->cipher) {
597 			case WLAN_CIPHER_SUITE_WEP40:
598 			case WLAN_CIPHER_SUITE_WEP104:
599 			case WLAN_CIPHER_SUITE_TKIP:
600 				set_tx_desc_sec_type(pdesc, 0x1);
601 				break;
602 			case WLAN_CIPHER_SUITE_CCMP:
603 				set_tx_desc_sec_type(pdesc, 0x3);
604 				break;
605 			default:
606 				set_tx_desc_sec_type(pdesc, 0x0);
607 				break;
608 
609 			}
610 		}
611 		set_tx_desc_pkt_id(pdesc, 0);
612 		set_tx_desc_queue_sel(pdesc, fw_qsel);
613 		set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
614 		set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
615 		set_tx_desc_disable_fb(pdesc, ptcb_desc->disable_ratefallback ?
616 				       1 : 0);
617 		set_tx_desc_use_rate(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
618 
619 		/* Set TxRate and RTSRate in TxDesc  */
620 		/* This prevent Tx initial rate of new-coming packets */
621 		/* from being overwritten by retried  packet rate.*/
622 		if (!ptcb_desc->use_driver_rate) {
623 			set_tx_desc_rts_rate(pdesc, 0x08);
624 			/* set_tx_desc_tx_rate(pdesc, 0x0b); */
625 		}
626 		if (ieee80211_is_data_qos(fc)) {
627 			if (mac->rdg_en) {
628 				rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
629 					"Enable RDG function\n");
630 				set_tx_desc_rdg_enable(pdesc, 1);
631 				set_tx_desc_htc(pdesc, 1);
632 			}
633 		}
634 	}
635 
636 	set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
637 	set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
638 	set_tx_desc_tx_buffer_size(pdesc, (u16)buf_len);
639 	set_tx_desc_tx_buffer_address(pdesc, mapping);
640 	if (rtlpriv->dm.useramask) {
641 		set_tx_desc_rate_id(pdesc, ptcb_desc->ratr_index);
642 		set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
643 	} else {
644 		set_tx_desc_rate_id(pdesc, 0xC + ptcb_desc->ratr_index);
645 		set_tx_desc_macid(pdesc, ptcb_desc->ratr_index);
646 	}
647 	if (ieee80211_is_data_qos(fc))
648 		set_tx_desc_qos(pdesc, 1);
649 
650 	if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
651 		set_tx_desc_hwseq_en(pdesc, 1);
652 		set_tx_desc_pkt_id(pdesc, 8);
653 	}
654 	set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
655 	rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
656 }
657 
658 void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw,
659 			     u8 *pdesc8, bool firstseg,
660 			     bool lastseg, struct sk_buff *skb)
661 {
662 	struct rtl_priv *rtlpriv = rtl_priv(hw);
663 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
664 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
665 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
666 	u8 fw_queue = QSLT_BEACON;
667 
668 	struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
669 	__le16 fc = hdr->frame_control;
670 	__le32 *pdesc = (__le32 *)pdesc8;
671 
672 	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
673 					    skb->len, DMA_TO_DEVICE);
674 
675 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
676 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
677 			"DMA mapping error\n");
678 		return;
679 	}
680 	clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
681 	if (firstseg)
682 		set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
683 	/* 5G have no CCK rate
684 	 * Caution: The macros below are multi-line expansions.
685 	 * The braces are needed no matter what checkpatch says
686 	 */
687 	if (rtlhal->current_bandtype == BAND_ON_5G) {
688 		set_tx_desc_tx_rate(pdesc, DESC_RATE6M);
689 	} else {
690 		set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
691 	}
692 	set_tx_desc_seq(pdesc, 0);
693 	set_tx_desc_linip(pdesc, 0);
694 	set_tx_desc_queue_sel(pdesc, fw_queue);
695 	set_tx_desc_first_seg(pdesc, 1);
696 	set_tx_desc_last_seg(pdesc, 1);
697 	set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
698 	set_tx_desc_tx_buffer_address(pdesc, mapping);
699 	set_tx_desc_rate_id(pdesc, 7);
700 	set_tx_desc_macid(pdesc, 0);
701 	set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
702 	set_tx_desc_first_seg(pdesc, 1);
703 	set_tx_desc_last_seg(pdesc, 1);
704 	set_tx_desc_offset(pdesc, 0x20);
705 	set_tx_desc_use_rate(pdesc, 1);
706 
707 	if (!ieee80211_is_data_qos(fc) && ppsc->fwctrl_lps) {
708 		set_tx_desc_hwseq_en(pdesc, 1);
709 		set_tx_desc_pkt_id(pdesc, 8);
710 	}
711 
712 	RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
713 		      "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
714 	wmb();
715 	set_tx_desc_own(pdesc, 1);
716 }
717 
718 void rtl92de_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
719 		      u8 desc_name, u8 *val)
720 {
721 	__le32  *pdesc = (__le32 *)pdesc8;
722 
723 	if (istx) {
724 		switch (desc_name) {
725 		case HW_DESC_OWN:
726 			wmb();
727 			set_tx_desc_own(pdesc, 1);
728 			break;
729 		case HW_DESC_TX_NEXTDESC_ADDR:
730 			set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
731 			break;
732 		default:
733 			WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
734 				  desc_name);
735 			break;
736 		}
737 	} else {
738 		switch (desc_name) {
739 		case HW_DESC_RXOWN:
740 			wmb();
741 			set_rx_desc_own(pdesc, 1);
742 			break;
743 		case HW_DESC_RXBUFF_ADDR:
744 			set_rx_desc_buff_addr(pdesc, *(u32 *)val);
745 			break;
746 		case HW_DESC_RXPKT_LEN:
747 			set_rx_desc_pkt_len(pdesc, *(u32 *)val);
748 			break;
749 		case HW_DESC_RXERO:
750 			set_rx_desc_eor(pdesc, 1);
751 			break;
752 		default:
753 			WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
754 				  desc_name);
755 			break;
756 		}
757 	}
758 }
759 
760 u64 rtl92de_get_desc(struct ieee80211_hw *hw,
761 		     u8 *p_desc8, bool istx, u8 desc_name)
762 {
763 	__le32 *p_desc = (__le32 *)p_desc8;
764 	u32 ret = 0;
765 
766 	if (istx) {
767 		switch (desc_name) {
768 		case HW_DESC_OWN:
769 			ret = get_tx_desc_own(p_desc);
770 			break;
771 		case HW_DESC_TXBUFF_ADDR:
772 			ret = get_tx_desc_tx_buffer_address(p_desc);
773 			break;
774 		default:
775 			WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
776 				  desc_name);
777 			break;
778 		}
779 	} else {
780 		switch (desc_name) {
781 		case HW_DESC_OWN:
782 			ret = get_rx_desc_own(p_desc);
783 			break;
784 		case HW_DESC_RXPKT_LEN:
785 			ret = get_rx_desc_pkt_len(p_desc);
786 		break;
787 		case HW_DESC_RXBUFF_ADDR:
788 			ret = get_rx_desc_buff_addr(p_desc);
789 			break;
790 		default:
791 			WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
792 				  desc_name);
793 			break;
794 		}
795 	}
796 	return ret;
797 }
798 
799 bool rtl92de_is_tx_desc_closed(struct ieee80211_hw *hw,
800 			       u8 hw_queue, u16 index)
801 {
802 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
803 	struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
804 	u8 *entry = (u8 *)(&ring->desc[ring->idx]);
805 	u8 own = (u8)rtl92de_get_desc(hw, entry, true, HW_DESC_OWN);
806 
807 	/* a beacon packet will only use the first
808 	 * descriptor by defaut, and the own bit may not
809 	 * be cleared by the hardware
810 	 */
811 	if (own)
812 		return false;
813 	return true;
814 }
815 
816 void rtl92de_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
817 {
818 	struct rtl_priv *rtlpriv = rtl_priv(hw);
819 	if (hw_queue == BEACON_QUEUE)
820 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
821 	else
822 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
823 			       BIT(0) << (hw_queue));
824 }
825