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 _rtl92ce_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) || ieee80211_is_ctl(fc))
21 		return QSLT_MGNT;
22 
23 	return skb->priority;
24 }
25 
26 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
27 				       struct rtl_stats *pstats,
28 				       struct rx_desc_92c *pdesc,
29 				       struct rx_fwinfo_92c *p_drvinfo,
30 				       bool packet_match_bssid,
31 				       bool packet_toself,
32 				       bool packet_beacon)
33 {
34 	struct rtl_priv *rtlpriv = rtl_priv(hw);
35 	struct phy_sts_cck_8192s_t *cck_buf;
36 	struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
37 	s8 rx_pwr_all = 0, rx_pwr[4];
38 	u8 evm, pwdb_all, rf_rx_num = 0;
39 	u8 i, max_spatial_stream;
40 	u32 rssi, total_rssi = 0;
41 	bool is_cck_rate;
42 
43 	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
44 	pstats->packet_matchbssid = packet_match_bssid;
45 	pstats->packet_toself = packet_toself;
46 	pstats->is_cck = is_cck_rate;
47 	pstats->packet_beacon = packet_beacon;
48 	pstats->rx_mimo_sig_qual[0] = -1;
49 	pstats->rx_mimo_sig_qual[1] = -1;
50 
51 	if (is_cck_rate) {
52 		u8 report, cck_highpwr;
53 
54 		cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
55 
56 		if (ppsc->rfpwr_state == ERFON)
57 			cck_highpwr = (u8) rtl_get_bbreg(hw,
58 						 RFPGA0_XA_HSSIPARAMETER2,
59 						 BIT(9));
60 		else
61 			cck_highpwr = false;
62 
63 		if (!cck_highpwr) {
64 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
65 
66 			report = cck_buf->cck_agc_rpt & 0xc0;
67 			report = report >> 6;
68 			switch (report) {
69 			case 0x3:
70 				rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
71 				break;
72 			case 0x2:
73 				rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
74 				break;
75 			case 0x1:
76 				rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
77 				break;
78 			case 0x0:
79 				rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
80 				break;
81 			}
82 		} else {
83 			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
84 
85 			report = p_drvinfo->cfosho[0] & 0x60;
86 			report = report >> 5;
87 			switch (report) {
88 			case 0x3:
89 				rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
90 				break;
91 			case 0x2:
92 				rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
93 				break;
94 			case 0x1:
95 				rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
96 				break;
97 			case 0x0:
98 				rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
99 				break;
100 			}
101 		}
102 
103 		pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
104 		/* CCK gain is smaller than OFDM/MCS gain,
105 		 * so we add gain diff by experiences,
106 		 * the val is 6
107 		 */
108 		pwdb_all += 6;
109 		if (pwdb_all > 100)
110 			pwdb_all = 100;
111 		/* modify the offset to make the same
112 		 * gain index with OFDM.
113 		 */
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 
123 		pstats->rx_pwdb_all = pwdb_all;
124 		pstats->recvsignalpower = rx_pwr_all;
125 
126 		/* (3) Get Signal Quality (EVM) */
127 		if (packet_match_bssid) {
128 			u8 sq;
129 
130 			if (pstats->rx_pwdb_all > 40)
131 				sq = 100;
132 			else {
133 				sq = cck_buf->sq_rpt;
134 				if (sq > 64)
135 					sq = 0;
136 				else if (sq < 20)
137 					sq = 100;
138 				else
139 					sq = ((64 - sq) * 100) / 44;
140 			}
141 
142 			pstats->signalquality = sq;
143 			pstats->rx_mimo_sig_qual[0] = sq;
144 			pstats->rx_mimo_sig_qual[1] = -1;
145 		}
146 	} else {
147 		rtlpriv->dm.rfpath_rxenable[0] =
148 		    rtlpriv->dm.rfpath_rxenable[1] = true;
149 		/* (1)Get RSSI for HT rate */
150 		for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
151 			/* we will judge RF RX path now. */
152 			if (rtlpriv->dm.rfpath_rxenable[i])
153 				rf_rx_num++;
154 
155 			rx_pwr[i] =
156 			    ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
157 			/* Translate DBM to percentage. */
158 			rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
159 			total_rssi += rssi;
160 			/* Get Rx snr value in DB */
161 			rtlpriv->stats.rx_snr_db[i] =
162 			    (long)(p_drvinfo->rxsnr[i] / 2);
163 
164 			/* Record Signal Strength for next packet */
165 			if (packet_match_bssid)
166 				pstats->rx_mimo_signalstrength[i] = (u8) rssi;
167 		}
168 
169 		/* (2)PWDB, Average PWDB cacluated by
170 		 * hardware (for rate adaptive)
171 		 */
172 		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
173 		pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
174 		pstats->rx_pwdb_all = pwdb_all;
175 		pstats->rxpower = rx_pwr_all;
176 		pstats->recvsignalpower = rx_pwr_all;
177 
178 		/* (3)EVM of HT rate */
179 		if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
180 		    pstats->rate <= DESC_RATEMCS15)
181 			max_spatial_stream = 2;
182 		else
183 			max_spatial_stream = 1;
184 
185 		for (i = 0; i < max_spatial_stream; i++) {
186 			evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
187 
188 			if (packet_match_bssid) {
189 				/* Fill value in RFD, Get the first
190 				 * spatial stream only
191 				 */
192 				if (i == 0)
193 					pstats->signalquality =
194 					    (u8)(evm & 0xff);
195 				pstats->rx_mimo_sig_qual[i] = (u8)(evm & 0xff);
196 			}
197 		}
198 	}
199 
200 	/* UI BSS List signal strength(in percentage),
201 	 * make it good looking, from 0~100.
202 	 */
203 	if (is_cck_rate)
204 		pstats->signalstrength =
205 		    (u8)(rtl_signal_scale_mapping(hw, pwdb_all));
206 	else if (rf_rx_num != 0)
207 		pstats->signalstrength =
208 		    (u8)(rtl_signal_scale_mapping(hw, total_rssi /= rf_rx_num));
209 }
210 
211 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
212 					       struct sk_buff *skb,
213 					       struct rtl_stats *pstats,
214 					       struct rx_desc_92c *pdesc,
215 					       struct rx_fwinfo_92c *p_drvinfo)
216 {
217 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
218 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
219 
220 	struct ieee80211_hdr *hdr;
221 	u8 *tmp_buf;
222 	u8 *praddr;
223 	__le16 fc;
224 	u16 type, c_fc;
225 	bool packet_matchbssid, packet_toself, packet_beacon = false;
226 
227 	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
228 
229 	hdr = (struct ieee80211_hdr *)tmp_buf;
230 	fc = hdr->frame_control;
231 	c_fc = le16_to_cpu(fc);
232 	type = WLAN_FC_GET_TYPE(fc);
233 	praddr = hdr->addr1;
234 
235 	packet_matchbssid =
236 	    ((IEEE80211_FTYPE_CTL != type) &&
237 	     ether_addr_equal(mac->bssid,
238 			      (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
239 			      (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
240 			      hdr->addr3) &&
241 	     (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
242 
243 	packet_toself = packet_matchbssid &&
244 	     ether_addr_equal(praddr, rtlefuse->dev_addr);
245 
246 	if (ieee80211_is_beacon(fc))
247 		packet_beacon = true;
248 
249 	_rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
250 				   packet_matchbssid, packet_toself,
251 				   packet_beacon);
252 
253 	rtl_process_phyinfo(hw, tmp_buf, pstats);
254 }
255 
256 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
257 			   struct rtl_stats *stats,
258 			   struct ieee80211_rx_status *rx_status,
259 			   u8 *p_desc8, struct sk_buff *skb)
260 {
261 	struct rx_fwinfo_92c *p_drvinfo;
262 	struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc8;
263 	struct ieee80211_hdr *hdr;
264 	__le32 *p_desc = (__le32 *)p_desc8;
265 	u32 phystatus = get_rx_desc_physt(p_desc);
266 
267 	stats->length = (u16)get_rx_desc_pkt_len(p_desc);
268 	stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(p_desc) *
269 	    RX_DRV_INFO_SIZE_UNIT;
270 	stats->rx_bufshift = (u8)(get_rx_desc_shift(p_desc) & 0x03);
271 	stats->icv = (u16)get_rx_desc_icv(p_desc);
272 	stats->crc = (u16)get_rx_desc_crc32(p_desc);
273 	stats->hwerror = (stats->crc | stats->icv);
274 	stats->decrypted = !get_rx_desc_swdec(p_desc);
275 	stats->rate = (u8)get_rx_desc_rxmcs(p_desc);
276 	stats->shortpreamble = (u16)get_rx_desc_splcp(p_desc);
277 	stats->isampdu = (bool)(get_rx_desc_paggr(p_desc) == 1);
278 	stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(p_desc) == 1) &&
279 				      (get_rx_desc_faggr(p_desc) == 1));
280 	stats->timestamp_low = get_rx_desc_tsfl(p_desc);
281 	stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(p_desc);
282 	stats->is_ht = (bool)get_rx_desc_rxht(p_desc);
283 
284 	stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
285 
286 	rx_status->freq = hw->conf.chandef.chan->center_freq;
287 	rx_status->band = hw->conf.chandef.chan->band;
288 
289 	hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
290 			+ stats->rx_bufshift);
291 
292 	if (stats->crc)
293 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
294 
295 	if (stats->rx_is40mhzpacket)
296 		rx_status->bw = RATE_INFO_BW_40;
297 
298 	if (stats->is_ht)
299 		rx_status->encoding = RX_ENC_HT;
300 
301 	rx_status->flag |= RX_FLAG_MACTIME_START;
302 
303 	/* hw will set stats->decrypted true, if it finds the
304 	 * frame is open data frame or mgmt frame.
305 	 * So hw will not decryption robust managment frame
306 	 * for IEEE80211w but still set status->decrypted
307 	 * true, so here we should set it back to undecrypted
308 	 * for IEEE80211w frame, and mac80211 sw will help
309 	 * to decrypt it
310 	 */
311 	if (stats->decrypted) {
312 		if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
313 		    (ieee80211_has_protected(hdr->frame_control)))
314 			rx_status->flag &= ~RX_FLAG_DECRYPTED;
315 		else
316 			rx_status->flag |= RX_FLAG_DECRYPTED;
317 	}
318 	/* rate_idx: index of data rate into band's
319 	 * supported rates or MCS index if HT rates
320 	 * are use (RX_FLAG_HT)
321 	 * Notice: this is diff with windows define
322 	 */
323 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
324 						   false, stats->rate);
325 
326 	rx_status->mactime = stats->timestamp_low;
327 	if (phystatus) {
328 		p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
329 						     stats->rx_bufshift);
330 
331 		_rtl92ce_translate_rx_signal_stuff(hw,
332 						   skb, stats, pdesc,
333 						   p_drvinfo);
334 	}
335 
336 	/*rx_status->qual = stats->signal; */
337 	rx_status->signal = stats->recvsignalpower + 10;
338 
339 	return true;
340 }
341 
342 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
343 			  struct ieee80211_hdr *hdr, u8 *pdesc8,
344 			  u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
345 			  struct ieee80211_sta *sta,
346 			  struct sk_buff *skb,
347 			  u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
348 {
349 	struct rtl_priv *rtlpriv = rtl_priv(hw);
350 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
351 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
352 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
353 	bool defaultadapter = true;
354 	__le32 *pdesc = (__le32 *)pdesc8;
355 	u16 seq_number;
356 	__le16 fc = hdr->frame_control;
357 	u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
358 	bool firstseg = ((hdr->seq_ctrl &
359 			  cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
360 
361 	bool lastseg = ((hdr->frame_control &
362 			 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
363 
364 	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
365 					    skb->len, DMA_TO_DEVICE);
366 
367 	u8 bw_40 = 0;
368 
369 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
370 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
371 			"DMA mapping error\n");
372 		return;
373 	}
374 	rcu_read_lock();
375 	sta = get_sta(hw, mac->vif, mac->bssid);
376 	if (mac->opmode == NL80211_IFTYPE_STATION) {
377 		bw_40 = mac->bw_40;
378 	} else if (mac->opmode == NL80211_IFTYPE_AP ||
379 		   mac->opmode == NL80211_IFTYPE_ADHOC ||
380 		   mac->opmode == NL80211_IFTYPE_MESH_POINT) {
381 		if (sta)
382 			bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
383 	}
384 
385 	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
386 
387 	rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
388 
389 	clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92c));
390 
391 	if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
392 		firstseg = true;
393 		lastseg = true;
394 	}
395 	if (firstseg) {
396 		set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
397 
398 		set_tx_desc_tx_rate(pdesc, tcb_desc->hw_rate);
399 
400 		if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
401 			set_tx_desc_data_shortgi(pdesc, 1);
402 
403 		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
404 			set_tx_desc_agg_break(pdesc, 1);
405 			set_tx_desc_max_agg_num(pdesc, 0x14);
406 		}
407 		set_tx_desc_seq(pdesc, seq_number);
408 
409 		set_tx_desc_rts_enable(pdesc, ((tcb_desc->rts_enable &&
410 						!tcb_desc->
411 						cts_enable) ? 1 : 0));
412 		set_tx_desc_hw_rts_enable(pdesc,
413 					  ((tcb_desc->rts_enable
414 					    || tcb_desc->cts_enable) ? 1 : 0));
415 		set_tx_desc_cts2self(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
416 		set_tx_desc_rts_stbc(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
417 
418 		set_tx_desc_rts_rate(pdesc, tcb_desc->rts_rate);
419 		set_tx_desc_rts_bw(pdesc, 0);
420 		set_tx_desc_rts_sc(pdesc, tcb_desc->rts_sc);
421 		set_tx_desc_rts_short(pdesc,
422 				      ((tcb_desc->rts_rate <= DESC_RATE54M) ?
423 				       (tcb_desc->rts_use_shortpreamble ? 1 : 0)
424 				       : (tcb_desc->rts_use_shortgi ? 1 : 0)));
425 
426 		if (bw_40) {
427 			if (tcb_desc->packet_bw) {
428 				set_tx_desc_data_bw(pdesc, 1);
429 				set_tx_desc_tx_sub_carrier(pdesc, 3);
430 			} else {
431 				set_tx_desc_data_bw(pdesc, 0);
432 				set_tx_desc_tx_sub_carrier(pdesc,
433 						 mac->cur_40_prime_sc);
434 			}
435 		} else {
436 			set_tx_desc_data_bw(pdesc, 0);
437 			set_tx_desc_tx_sub_carrier(pdesc, 0);
438 		}
439 
440 		set_tx_desc_linip(pdesc, 0);
441 		set_tx_desc_pkt_size(pdesc, (u16)skb->len);
442 
443 		if (sta) {
444 			u8 ampdu_density = sta->ht_cap.ampdu_density;
445 
446 			set_tx_desc_ampdu_density(pdesc, ampdu_density);
447 		}
448 
449 		if (info->control.hw_key) {
450 			struct ieee80211_key_conf *keyconf =
451 			    info->control.hw_key;
452 
453 			switch (keyconf->cipher) {
454 			case WLAN_CIPHER_SUITE_WEP40:
455 			case WLAN_CIPHER_SUITE_WEP104:
456 			case WLAN_CIPHER_SUITE_TKIP:
457 				set_tx_desc_sec_type(pdesc, 0x1);
458 				break;
459 			case WLAN_CIPHER_SUITE_CCMP:
460 				set_tx_desc_sec_type(pdesc, 0x3);
461 				break;
462 			default:
463 				set_tx_desc_sec_type(pdesc, 0x0);
464 				break;
465 
466 			}
467 		}
468 
469 		set_tx_desc_pkt_id(pdesc, 0);
470 		set_tx_desc_queue_sel(pdesc, fw_qsel);
471 
472 		set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
473 		set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
474 		set_tx_desc_disable_fb(pdesc, 0);
475 		set_tx_desc_use_rate(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
476 
477 		if (ieee80211_is_data_qos(fc)) {
478 			if (mac->rdg_en) {
479 				rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
480 					"Enable RDG function\n");
481 				set_tx_desc_rdg_enable(pdesc, 1);
482 				set_tx_desc_htc(pdesc, 1);
483 			}
484 		}
485 	}
486 	rcu_read_unlock();
487 
488 	set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
489 	set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
490 
491 	set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
492 
493 	set_tx_desc_tx_buffer_address(pdesc, mapping);
494 
495 	if (rtlpriv->dm.useramask) {
496 		set_tx_desc_rate_id(pdesc, tcb_desc->ratr_index);
497 		set_tx_desc_macid(pdesc, tcb_desc->mac_id);
498 	} else {
499 		set_tx_desc_rate_id(pdesc, 0xC + tcb_desc->ratr_index);
500 		set_tx_desc_macid(pdesc, tcb_desc->ratr_index);
501 	}
502 
503 	if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
504 		set_tx_desc_hwseq_en(pdesc, 1);
505 		set_tx_desc_pkt_id(pdesc, 8);
506 
507 		if (!defaultadapter)
508 			set_tx_desc_qos(pdesc, 1);
509 	}
510 
511 	set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
512 
513 	if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
514 	    is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
515 		set_tx_desc_bmc(pdesc, 1);
516 	}
517 
518 	rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
519 }
520 
521 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
522 			     u8 *pdesc8, bool firstseg,
523 			     bool lastseg, struct sk_buff *skb)
524 {
525 	struct rtl_priv *rtlpriv = rtl_priv(hw);
526 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
527 	u8 fw_queue = QSLT_BEACON;
528 	__le32 *pdesc = (__le32 *)pdesc8;
529 
530 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
531 	__le16 fc = hdr->frame_control;
532 
533 	dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data,
534 					    skb->len, DMA_TO_DEVICE);
535 
536 	if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) {
537 		rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
538 			"DMA mapping error\n");
539 		return;
540 	}
541 	clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
542 
543 	if (firstseg)
544 		set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
545 
546 	set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
547 
548 	set_tx_desc_seq(pdesc, 0);
549 
550 	set_tx_desc_linip(pdesc, 0);
551 
552 	set_tx_desc_queue_sel(pdesc, fw_queue);
553 
554 	set_tx_desc_first_seg(pdesc, 1);
555 	set_tx_desc_last_seg(pdesc, 1);
556 
557 	set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
558 
559 	set_tx_desc_tx_buffer_address(pdesc, mapping);
560 
561 	set_tx_desc_rate_id(pdesc, 7);
562 	set_tx_desc_macid(pdesc, 0);
563 
564 	set_tx_desc_own(pdesc, 1);
565 
566 	set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
567 
568 	set_tx_desc_first_seg(pdesc, 1);
569 	set_tx_desc_last_seg(pdesc, 1);
570 
571 	set_tx_desc_offset(pdesc, 0x20);
572 
573 	set_tx_desc_use_rate(pdesc, 1);
574 
575 	if (!ieee80211_is_data_qos(fc)) {
576 		set_tx_desc_hwseq_en(pdesc, 1);
577 		set_tx_desc_pkt_id(pdesc, 8);
578 	}
579 
580 	RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
581 		      "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
582 }
583 
584 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
585 		      u8 desc_name, u8 *val)
586 {
587 	__le32 *pdesc = (__le32 *)pdesc8;
588 
589 	if (istx) {
590 		switch (desc_name) {
591 		case HW_DESC_OWN:
592 			wmb();
593 			set_tx_desc_own(pdesc, 1);
594 			break;
595 		case HW_DESC_TX_NEXTDESC_ADDR:
596 			set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
597 			break;
598 		default:
599 			WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
600 				  desc_name);
601 			break;
602 		}
603 	} else {
604 		switch (desc_name) {
605 		case HW_DESC_RXOWN:
606 			wmb();
607 			set_rx_desc_own(pdesc, 1);
608 			break;
609 		case HW_DESC_RXBUFF_ADDR:
610 			set_rx_desc_buff_addr(pdesc, *(u32 *)val);
611 			break;
612 		case HW_DESC_RXPKT_LEN:
613 			set_rx_desc_pkt_len(pdesc, *(u32 *)val);
614 			break;
615 		case HW_DESC_RXERO:
616 			set_rx_desc_eor(pdesc, 1);
617 			break;
618 		default:
619 			WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
620 				  desc_name);
621 			break;
622 		}
623 	}
624 }
625 
626 u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8,
627 		     bool istx, u8 desc_name)
628 {
629 	u32 ret = 0;
630 	__le32 *p_desc = (__le32 *)p_desc8;
631 
632 	if (istx) {
633 		switch (desc_name) {
634 		case HW_DESC_OWN:
635 			ret = get_tx_desc_own(p_desc);
636 			break;
637 		case HW_DESC_TXBUFF_ADDR:
638 			ret = get_tx_desc_tx_buffer_address(p_desc);
639 			break;
640 		default:
641 			WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
642 				  desc_name);
643 			break;
644 		}
645 	} else {
646 		switch (desc_name) {
647 		case HW_DESC_OWN:
648 			ret = get_rx_desc_own(p_desc);
649 			break;
650 		case HW_DESC_RXPKT_LEN:
651 			ret = get_rx_desc_pkt_len(p_desc);
652 			break;
653 		case HW_DESC_RXBUFF_ADDR:
654 			ret = get_rx_desc_buff_addr(p_desc);
655 			break;
656 		default:
657 			WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
658 				  desc_name);
659 			break;
660 		}
661 	}
662 	return ret;
663 }
664 
665 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
666 			       u8 hw_queue, u16 index)
667 {
668 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
669 	struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
670 	u8 *entry = (u8 *)(&ring->desc[ring->idx]);
671 	u8 own = (u8)rtl92ce_get_desc(hw, entry, true, HW_DESC_OWN);
672 
673 	/*beacon packet will only use the first
674 	 *descriptor defautly,and the own may not
675 	 *be cleared by the hardware
676 	 */
677 	if (own)
678 		return false;
679 	return true;
680 }
681 
682 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
683 {
684 	struct rtl_priv *rtlpriv = rtl_priv(hw);
685 
686 	if (hw_queue == BEACON_QUEUE) {
687 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
688 	} else {
689 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
690 			       BIT(0) << (hw_queue));
691 	}
692 }
693 
694