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  * 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 "../stats.h"
30 #include "reg.h"
31 #include "def.h"
32 #include "phy.h"
33 #include "trx.h"
34 #include "led.h"
35 #include "dm.h"
36 #include "phy.h"
37 #include "fw.h"
38 
39 static u8 _rtl8821ae_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) || ieee80211_is_ctl(fc))
46 		return QSLT_MGNT;
47 
48 	return skb->priority;
49 }
50 
51 static u16 odm_cfo(s8 value)
52 {
53 	int ret_val;
54 
55 	if (value < 0) {
56 		ret_val = 0 - value;
57 		ret_val = (ret_val << 1) + (ret_val >> 1);
58 		/* set bit12 as 1 for negative cfo */
59 		ret_val = ret_val | BIT(12);
60 	} else {
61 		ret_val = value;
62 		ret_val = (ret_val << 1) + (ret_val >> 1);
63 	}
64 	return ret_val;
65 }
66 
67 static u8 _rtl8821ae_evm_dbm_jaguar(s8 value)
68 {
69 	s8 ret_val = value;
70 
71 	/* -33dB~0dB to 33dB ~ 0dB*/
72 	if (ret_val == -128)
73 		ret_val = 127;
74 	else if (ret_val < 0)
75 		ret_val = 0 - ret_val;
76 
77 	ret_val  = ret_val >> 1;
78 	return ret_val;
79 }
80 
81 static void query_rxphystatus(struct ieee80211_hw *hw,
82 			      struct rtl_stats *pstatus, u8 *pdesc,
83 			      struct rx_fwinfo_8821ae *p_drvinfo,
84 			      bool bpacket_match_bssid,
85 			      bool bpacket_toself, bool packet_beacon)
86 {
87 	struct rtl_priv *rtlpriv = rtl_priv(hw);
88 	struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo;
89 	struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
90 	struct rtl_phy *rtlphy = &rtlpriv->phy;
91 	s8 rx_pwr_all = 0, rx_pwr[4];
92 	u8 rf_rx_num = 0, evm, evmdbm, pwdb_all;
93 	u8 i, max_spatial_stream;
94 	u32 rssi, total_rssi = 0;
95 	bool is_cck = pstatus->is_cck;
96 	u8 lan_idx, vga_idx;
97 
98 	/* Record it for next packet processing */
99 	pstatus->packet_matchbssid = bpacket_match_bssid;
100 	pstatus->packet_toself = bpacket_toself;
101 	pstatus->packet_beacon = packet_beacon;
102 	pstatus->rx_mimo_signalquality[0] = -1;
103 	pstatus->rx_mimo_signalquality[1] = -1;
104 
105 	if (is_cck) {
106 		u8 cck_highpwr;
107 		u8 cck_agc_rpt;
108 
109 		cck_agc_rpt = p_phystrpt->cfosho[0];
110 
111 		/* (1)Hardware does not provide RSSI for CCK
112 		 * (2)PWDB, Average PWDB cacluated by
113 		 * hardware (for rate adaptive)
114 		 */
115 		cck_highpwr = (u8)rtlphy->cck_high_power;
116 
117 		lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
118 		vga_idx = (cck_agc_rpt & 0x1f);
119 		if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) {
120 			switch (lan_idx) {
121 			case 7:
122 				if (vga_idx <= 27)
123 					/*VGA_idx = 27~2*/
124 					rx_pwr_all = -100 + 2*(27-vga_idx);
125 				else
126 					rx_pwr_all = -100;
127 				break;
128 			case 6:
129 				/*VGA_idx = 2~0*/
130 				rx_pwr_all = -48 + 2*(2-vga_idx);
131 				break;
132 			case 5:
133 				/*VGA_idx = 7~5*/
134 				rx_pwr_all = -42 + 2*(7-vga_idx);
135 				break;
136 			case 4:
137 				/*VGA_idx = 7~4*/
138 				rx_pwr_all = -36 + 2*(7-vga_idx);
139 				break;
140 			case 3:
141 				/*VGA_idx = 7~0*/
142 				rx_pwr_all = -24 + 2*(7-vga_idx);
143 				break;
144 			case 2:
145 				if (cck_highpwr)
146 					/*VGA_idx = 5~0*/
147 					rx_pwr_all = -12 + 2*(5-vga_idx);
148 				else
149 					rx_pwr_all = -6 + 2*(5-vga_idx);
150 				break;
151 			case 1:
152 				rx_pwr_all = 8-2*vga_idx;
153 				break;
154 			case 0:
155 				rx_pwr_all = 14-2*vga_idx;
156 				break;
157 			default:
158 				break;
159 			}
160 			rx_pwr_all += 6;
161 			pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
162 			if (!cck_highpwr) {
163 				if (pwdb_all >= 80)
164 					pwdb_all =
165 					  ((pwdb_all - 80)<<1) +
166 					 ((pwdb_all - 80)>>1) + 80;
167 				else if ((pwdb_all <= 78) && (pwdb_all >= 20))
168 					pwdb_all += 3;
169 				if (pwdb_all > 100)
170 					pwdb_all = 100;
171 			}
172 		} else { /* 8821 */
173 			s8 pout = -6;
174 
175 			switch (lan_idx) {
176 			case 5:
177 				rx_pwr_all = pout - 32 - (2*vga_idx);
178 					break;
179 			case 4:
180 				rx_pwr_all = pout - 24 - (2*vga_idx);
181 					break;
182 			case 2:
183 				rx_pwr_all = pout - 11 - (2*vga_idx);
184 					break;
185 			case 1:
186 				rx_pwr_all = pout + 5 - (2*vga_idx);
187 					break;
188 			case 0:
189 				rx_pwr_all = pout + 21 - (2*vga_idx);
190 					break;
191 			}
192 			pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
193 		}
194 
195 		pstatus->rx_pwdb_all = pwdb_all;
196 		pstatus->recvsignalpower = rx_pwr_all;
197 
198 		/* (3) Get Signal Quality (EVM) */
199 		if (bpacket_match_bssid) {
200 			u8 sq;
201 
202 			if (pstatus->rx_pwdb_all > 40) {
203 				sq = 100;
204 			} else {
205 				sq = p_phystrpt->pwdb_all;
206 				if (sq > 64)
207 					sq = 0;
208 				else if (sq < 20)
209 					sq = 100;
210 				else
211 					sq = ((64 - sq) * 100) / 44;
212 			}
213 
214 			pstatus->signalquality = sq;
215 			pstatus->rx_mimo_signalquality[0] = sq;
216 			pstatus->rx_mimo_signalquality[1] = -1;
217 		}
218 	} else {
219 		/* (1)Get RSSI for HT rate */
220 		for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
221 			/* we will judge RF RX path now. */
222 			if (rtlpriv->dm.rfpath_rxenable[i])
223 				rf_rx_num++;
224 
225 			rx_pwr[i] = (p_phystrpt->gain_trsw[i] & 0x7f) - 110;
226 
227 			/* Translate DBM to percentage. */
228 			rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
229 			total_rssi += rssi;
230 
231 			/* Get Rx snr value in DB */
232 			pstatus->rx_snr[i] = p_phystrpt->rxsnr[i] / 2;
233 			rtlpriv->stats.rx_snr_db[i] = p_phystrpt->rxsnr[i] / 2;
234 
235 			pstatus->cfo_short[i] = odm_cfo(p_phystrpt->cfosho[i]);
236 			pstatus->cfo_tail[i] = odm_cfo(p_phystrpt->cfotail[i]);
237 			/* Record Signal Strength for next packet */
238 			pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
239 		}
240 
241 		/* (2)PWDB, Average PWDB cacluated by
242 		 * hardware (for rate adaptive)
243 		 */
244 		rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
245 
246 		pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
247 		pstatus->rx_pwdb_all = pwdb_all;
248 		pstatus->rxpower = rx_pwr_all;
249 		pstatus->recvsignalpower = rx_pwr_all;
250 
251 		/* (3)EVM of HT rate */
252 		if ((pstatus->is_ht && pstatus->rate >= DESC_RATEMCS8 &&
253 		     pstatus->rate <= DESC_RATEMCS15) ||
254 		    (pstatus->is_vht &&
255 		     pstatus->rate >= DESC_RATEVHT2SS_MCS0 &&
256 		     pstatus->rate <= DESC_RATEVHT2SS_MCS9))
257 			max_spatial_stream = 2;
258 		else
259 			max_spatial_stream = 1;
260 
261 		for (i = 0; i < max_spatial_stream; i++) {
262 			evm = rtl_evm_db_to_percentage(p_phystrpt->rxevm[i]);
263 			evmdbm = _rtl8821ae_evm_dbm_jaguar(p_phystrpt->rxevm[i]);
264 
265 			if (bpacket_match_bssid) {
266 				/* Fill value in RFD, Get the first
267 				 * spatial stream only
268 				 */
269 				if (i == 0)
270 					pstatus->signalquality = evm;
271 				pstatus->rx_mimo_signalquality[i] = evm;
272 				pstatus->rx_mimo_evm_dbm[i] = evmdbm;
273 			}
274 		}
275 		if (bpacket_match_bssid) {
276 			for (i = RF90_PATH_A; i <= RF90_PATH_B; i++)
277 				rtl_priv(hw)->dm.cfo_tail[i] =
278 					(s8)p_phystrpt->cfotail[i];
279 
280 			rtl_priv(hw)->dm.packet_count++;
281 		}
282 	}
283 
284 	/* UI BSS List signal strength(in percentage),
285 	 * make it good looking, from 0~100.
286 	 */
287 	if (is_cck)
288 		pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
289 			pwdb_all));
290 	else if (rf_rx_num != 0)
291 		pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
292 			total_rssi /= rf_rx_num));
293 	/*HW antenna diversity*/
294 	rtldm->fat_table.antsel_rx_keep_0 = p_phystrpt->antidx_anta;
295 	rtldm->fat_table.antsel_rx_keep_1 = p_phystrpt->antidx_antb;
296 }
297 
298 static void translate_rx_signal_stuff(struct ieee80211_hw *hw,
299 				      struct sk_buff *skb,
300 				      struct rtl_stats *pstatus, u8 *pdesc,
301 				      struct rx_fwinfo_8821ae *p_drvinfo)
302 {
303 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
304 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
305 	struct ieee80211_hdr *hdr;
306 	u8 *tmp_buf;
307 	u8 *praddr;
308 	u8 *psaddr;
309 	__le16 fc;
310 	u16 type;
311 	bool packet_matchbssid, packet_toself, packet_beacon;
312 
313 	tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
314 
315 	hdr = (struct ieee80211_hdr *)tmp_buf;
316 	fc = hdr->frame_control;
317 	type = WLAN_FC_GET_TYPE(hdr->frame_control);
318 	praddr = hdr->addr1;
319 	psaddr = ieee80211_get_SA(hdr);
320 	ether_addr_copy(pstatus->psaddr, psaddr);
321 
322 	packet_matchbssid = (!ieee80211_is_ctl(fc) &&
323 			     (ether_addr_equal(mac->bssid,
324 					       ieee80211_has_tods(fc) ?
325 					       hdr->addr1 :
326 					       ieee80211_has_fromds(fc) ?
327 					       hdr->addr2 : hdr->addr3)) &&
328 			      (!pstatus->hwerror) &&
329 			      (!pstatus->crc) && (!pstatus->icv));
330 
331 	packet_toself = packet_matchbssid &&
332 	    (ether_addr_equal(praddr, rtlefuse->dev_addr));
333 
334 	if (ieee80211_is_beacon(hdr->frame_control))
335 		packet_beacon = true;
336 	else
337 		packet_beacon = false;
338 
339 	if (packet_beacon && packet_matchbssid)
340 		rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++;
341 
342 	if (packet_matchbssid &&
343 	    ieee80211_is_data_qos(hdr->frame_control) &&
344 	    !is_multicast_ether_addr(ieee80211_get_DA(hdr))) {
345 		struct ieee80211_qos_hdr *hdr_qos =
346 			(struct ieee80211_qos_hdr *)tmp_buf;
347 		u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf;
348 
349 		if (tid != 0 && tid != 3)
350 			rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++;
351 	}
352 
353 	query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
354 			  packet_matchbssid, packet_toself,
355 			  packet_beacon);
356 	/*_rtl8821ae_smart_antenna(hw, pstatus); */
357 	rtl_process_phyinfo(hw, tmp_buf, pstatus);
358 }
359 
360 static void _rtl8821ae_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
361 					u8 *virtualaddress)
362 {
363 	u32 dwtmp = 0;
364 
365 	memset(virtualaddress, 0, 8);
366 
367 	SET_EARLYMODE_PKTNUM(virtualaddress, ptcb_desc->empkt_num);
368 	if (ptcb_desc->empkt_num == 1) {
369 		dwtmp = ptcb_desc->empkt_len[0];
370 	} else {
371 		dwtmp = ptcb_desc->empkt_len[0];
372 		dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
373 		dwtmp += ptcb_desc->empkt_len[1];
374 	}
375 	SET_EARLYMODE_LEN0(virtualaddress, dwtmp);
376 
377 	if (ptcb_desc->empkt_num <= 3) {
378 		dwtmp = ptcb_desc->empkt_len[2];
379 	} else {
380 		dwtmp = ptcb_desc->empkt_len[2];
381 		dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
382 		dwtmp += ptcb_desc->empkt_len[3];
383 	}
384 	SET_EARLYMODE_LEN1(virtualaddress, dwtmp);
385 	if (ptcb_desc->empkt_num <= 5) {
386 		dwtmp = ptcb_desc->empkt_len[4];
387 	} else {
388 		dwtmp = ptcb_desc->empkt_len[4];
389 		dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
390 		dwtmp += ptcb_desc->empkt_len[5];
391 	}
392 	SET_EARLYMODE_LEN2_1(virtualaddress, dwtmp & 0xF);
393 	SET_EARLYMODE_LEN2_2(virtualaddress, dwtmp >> 4);
394 	if (ptcb_desc->empkt_num <= 7) {
395 		dwtmp = ptcb_desc->empkt_len[6];
396 	} else {
397 		dwtmp = ptcb_desc->empkt_len[6];
398 		dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
399 		dwtmp += ptcb_desc->empkt_len[7];
400 	}
401 	SET_EARLYMODE_LEN3(virtualaddress, dwtmp);
402 	if (ptcb_desc->empkt_num <= 9) {
403 		dwtmp = ptcb_desc->empkt_len[8];
404 	} else {
405 		dwtmp = ptcb_desc->empkt_len[8];
406 		dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
407 		dwtmp += ptcb_desc->empkt_len[9];
408 	}
409 	SET_EARLYMODE_LEN4(virtualaddress, dwtmp);
410 }
411 
412 static bool rtl8821ae_get_rxdesc_is_ht(struct ieee80211_hw *hw, u8 *pdesc)
413 {
414 	struct rtl_priv *rtlpriv = rtl_priv(hw);
415 	u8 rx_rate = 0;
416 
417 	rx_rate = GET_RX_DESC_RXMCS(pdesc);
418 
419 	RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
420 
421 	if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15))
422 		return true;
423 	return false;
424 }
425 
426 static bool rtl8821ae_get_rxdesc_is_vht(struct ieee80211_hw *hw, u8 *pdesc)
427 {
428 	struct rtl_priv *rtlpriv = rtl_priv(hw);
429 	u8 rx_rate = 0;
430 
431 	rx_rate = GET_RX_DESC_RXMCS(pdesc);
432 
433 	RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
434 
435 	if (rx_rate >= DESC_RATEVHT1SS_MCS0)
436 		return true;
437 	return false;
438 }
439 
440 static u8 rtl8821ae_get_rx_vht_nss(struct ieee80211_hw *hw, u8 *pdesc)
441 {
442 	u8 rx_rate = 0;
443 	u8 vht_nss = 0;
444 
445 	rx_rate = GET_RX_DESC_RXMCS(pdesc);
446 	if ((rx_rate >= DESC_RATEVHT1SS_MCS0) &&
447 	    (rx_rate <= DESC_RATEVHT1SS_MCS9))
448 		vht_nss = 1;
449 	else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) &&
450 		 (rx_rate <= DESC_RATEVHT2SS_MCS9))
451 		vht_nss = 2;
452 
453 	return vht_nss;
454 }
455 
456 bool rtl8821ae_rx_query_desc(struct ieee80211_hw *hw,
457 			     struct rtl_stats *status,
458 			     struct ieee80211_rx_status *rx_status,
459 			     u8 *pdesc, struct sk_buff *skb)
460 {
461 	struct rtl_priv *rtlpriv = rtl_priv(hw);
462 	struct rx_fwinfo_8821ae *p_drvinfo;
463 	struct ieee80211_hdr *hdr;
464 
465 	u32 phystatus = GET_RX_DESC_PHYST(pdesc);
466 
467 	status->length = (u16)GET_RX_DESC_PKT_LEN(pdesc);
468 	status->rx_drvinfo_size = (u8)GET_RX_DESC_DRV_INFO_SIZE(pdesc) *
469 	    RX_DRV_INFO_SIZE_UNIT;
470 	status->rx_bufshift = (u8)(GET_RX_DESC_SHIFT(pdesc) & 0x03);
471 	status->icv = (u16)GET_RX_DESC_ICV(pdesc);
472 	status->crc = (u16)GET_RX_DESC_CRC32(pdesc);
473 	status->hwerror = (status->crc | status->icv);
474 	status->decrypted = !GET_RX_DESC_SWDEC(pdesc);
475 	status->rate = (u8)GET_RX_DESC_RXMCS(pdesc);
476 	status->shortpreamble = (u16)GET_RX_DESC_SPLCP(pdesc);
477 	status->isampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
478 	status->isfirst_ampdu = (bool)(GET_RX_DESC_PAGGR(pdesc) == 1);
479 	status->timestamp_low = GET_RX_DESC_TSFL(pdesc);
480 	status->rx_packet_bw = GET_RX_DESC_BW(pdesc);
481 	status->macid = GET_RX_DESC_MACID(pdesc);
482 	status->is_short_gi = !(bool)GET_RX_DESC_SPLCP(pdesc);
483 	status->is_ht = rtl8821ae_get_rxdesc_is_ht(hw, pdesc);
484 	status->is_vht = rtl8821ae_get_rxdesc_is_vht(hw, pdesc);
485 	status->vht_nss = rtl8821ae_get_rx_vht_nss(hw, pdesc);
486 	status->is_cck = RTL8821AE_RX_HAL_IS_CCK_RATE(status->rate);
487 
488 	RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
489 		 "rx_packet_bw=%s,is_ht %d, is_vht %d, vht_nss=%d,is_short_gi %d.\n",
490 		 (status->rx_packet_bw == 2) ? "80M" :
491 		 (status->rx_packet_bw == 1) ? "40M" : "20M",
492 		 status->is_ht, status->is_vht, status->vht_nss,
493 		 status->is_short_gi);
494 
495 	if (GET_RX_STATUS_DESC_RPT_SEL(pdesc))
496 		status->packet_report_type = C2H_PACKET;
497 	else
498 		status->packet_report_type = NORMAL_RX;
499 
500 	if (GET_RX_STATUS_DESC_PATTERN_MATCH(pdesc))
501 		status->wake_match = BIT(2);
502 	else if (GET_RX_STATUS_DESC_MAGIC_MATCH(pdesc))
503 		status->wake_match = BIT(1);
504 	else if (GET_RX_STATUS_DESC_UNICAST_MATCH(pdesc))
505 		status->wake_match = BIT(0);
506 	else
507 		status->wake_match = 0;
508 
509 	if (status->wake_match)
510 		RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
511 			 "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
512 			 status->wake_match);
513 	rx_status->freq = hw->conf.chandef.chan->center_freq;
514 	rx_status->band = hw->conf.chandef.chan->band;
515 
516 	hdr = (struct ieee80211_hdr *)(skb->data +
517 	      status->rx_drvinfo_size + status->rx_bufshift);
518 
519 	if (status->crc)
520 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
521 
522 	if (status->rx_packet_bw == HT_CHANNEL_WIDTH_20_40)
523 		rx_status->bw = RATE_INFO_BW_40;
524 	else if (status->rx_packet_bw == HT_CHANNEL_WIDTH_80)
525 		rx_status->bw = RATE_INFO_BW_80;
526 	if (status->is_ht)
527 		rx_status->encoding = RX_ENC_HT;
528 	if (status->is_vht)
529 		rx_status->encoding = RX_ENC_VHT;
530 
531 	if (status->is_short_gi)
532 		rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
533 
534 	rx_status->nss = status->vht_nss;
535 	rx_status->flag |= RX_FLAG_MACTIME_START;
536 
537 	/* hw will set status->decrypted true, if it finds the
538 	 * frame is open data frame or mgmt frame.
539 	 * So hw will not decryption robust managment frame
540 	 * for IEEE80211w but still set status->decrypted
541 	 * true, so here we should set it back to undecrypted
542 	 * for IEEE80211w frame, and mac80211 sw will help
543 	 * to decrypt it
544 	 */
545 	if (status->decrypted) {
546 		if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
547 		    (ieee80211_has_protected(hdr->frame_control)))
548 			rx_status->flag |= RX_FLAG_DECRYPTED;
549 		else
550 			rx_status->flag &= ~RX_FLAG_DECRYPTED;
551 	}
552 
553 	/* rate_idx: index of data rate into band's
554 	 * supported rates or MCS index if HT rates
555 	 * are use (RX_FLAG_HT)
556 	 */
557 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
558 						   status->is_vht,
559 						   status->rate);
560 
561 	rx_status->mactime = status->timestamp_low;
562 	if (phystatus) {
563 		p_drvinfo = (struct rx_fwinfo_8821ae *)(skb->data +
564 			    status->rx_bufshift);
565 
566 		translate_rx_signal_stuff(hw, skb, status, pdesc, p_drvinfo);
567 	}
568 	rx_status->signal = status->recvsignalpower + 10;
569 	if (status->packet_report_type == TX_REPORT2) {
570 		status->macid_valid_entry[0] =
571 		  GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
572 		status->macid_valid_entry[1] =
573 		  GET_RX_RPT2_DESC_MACID_VALID_2(pdesc);
574 	}
575 	return true;
576 }
577 
578 static u8 rtl8821ae_bw_mapping(struct ieee80211_hw *hw,
579 			       struct rtl_tcb_desc *ptcb_desc)
580 {
581 	struct rtl_priv *rtlpriv = rtl_priv(hw);
582 	struct rtl_phy *rtlphy = &rtlpriv->phy;
583 	u8 bw_setting_of_desc = 0;
584 
585 	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
586 		 "rtl8821ae_bw_mapping, current_chan_bw %d, packet_bw %d\n",
587 		 rtlphy->current_chan_bw, ptcb_desc->packet_bw);
588 
589 	if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
590 		if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)
591 			bw_setting_of_desc = 2;
592 		else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40)
593 			bw_setting_of_desc = 1;
594 		else
595 			bw_setting_of_desc = 0;
596 	} else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
597 		if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) ||
598 		    (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80))
599 			bw_setting_of_desc = 1;
600 		else
601 			bw_setting_of_desc = 0;
602 	} else {
603 		bw_setting_of_desc = 0;
604 	}
605 	return bw_setting_of_desc;
606 }
607 
608 static u8 rtl8821ae_sc_mapping(struct ieee80211_hw *hw,
609 			       struct rtl_tcb_desc *ptcb_desc)
610 {
611 	struct rtl_priv *rtlpriv = rtl_priv(hw);
612 	struct rtl_phy *rtlphy = &rtlpriv->phy;
613 	struct rtl_mac *mac = rtl_mac(rtlpriv);
614 	u8 sc_setting_of_desc = 0;
615 
616 	if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
617 		if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) {
618 			sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
619 		} else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
620 			if (mac->cur_80_prime_sc ==
621 			    HAL_PRIME_CHNL_OFFSET_LOWER)
622 				sc_setting_of_desc =
623 					VHT_DATA_SC_40_LOWER_OF_80MHZ;
624 			else if (mac->cur_80_prime_sc ==
625 				 HAL_PRIME_CHNL_OFFSET_UPPER)
626 				sc_setting_of_desc =
627 					VHT_DATA_SC_40_UPPER_OF_80MHZ;
628 			else
629 				RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
630 					 "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
631 		} else {
632 			if ((mac->cur_40_prime_sc ==
633 			     HAL_PRIME_CHNL_OFFSET_LOWER) &&
634 			    (mac->cur_80_prime_sc  ==
635 			     HAL_PRIME_CHNL_OFFSET_LOWER))
636 				sc_setting_of_desc =
637 					VHT_DATA_SC_20_LOWEST_OF_80MHZ;
638 			else if ((mac->cur_40_prime_sc ==
639 				  HAL_PRIME_CHNL_OFFSET_UPPER) &&
640 				 (mac->cur_80_prime_sc ==
641 				  HAL_PRIME_CHNL_OFFSET_LOWER))
642 				sc_setting_of_desc =
643 					VHT_DATA_SC_20_LOWER_OF_80MHZ;
644 			else if ((mac->cur_40_prime_sc ==
645 				  HAL_PRIME_CHNL_OFFSET_LOWER) &&
646 				 (mac->cur_80_prime_sc ==
647 				  HAL_PRIME_CHNL_OFFSET_UPPER))
648 				sc_setting_of_desc =
649 					VHT_DATA_SC_20_UPPER_OF_80MHZ;
650 			else if ((mac->cur_40_prime_sc ==
651 				  HAL_PRIME_CHNL_OFFSET_UPPER) &&
652 				 (mac->cur_80_prime_sc ==
653 				  HAL_PRIME_CHNL_OFFSET_UPPER))
654 				sc_setting_of_desc =
655 					VHT_DATA_SC_20_UPPERST_OF_80MHZ;
656 			else
657 				RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
658 					 "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
659 		}
660 	} else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
661 		if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
662 			sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
663 		} else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20) {
664 			if (mac->cur_40_prime_sc ==
665 				HAL_PRIME_CHNL_OFFSET_UPPER) {
666 				sc_setting_of_desc =
667 					VHT_DATA_SC_20_UPPER_OF_80MHZ;
668 			} else if (mac->cur_40_prime_sc ==
669 				HAL_PRIME_CHNL_OFFSET_LOWER){
670 				sc_setting_of_desc =
671 					VHT_DATA_SC_20_LOWER_OF_80MHZ;
672 			} else {
673 				sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
674 			}
675 		}
676 	} else {
677 		sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
678 	}
679 
680 	return sc_setting_of_desc;
681 }
682 
683 void rtl8821ae_tx_fill_desc(struct ieee80211_hw *hw,
684 			    struct ieee80211_hdr *hdr, u8 *pdesc_tx, u8 *txbd,
685 			    struct ieee80211_tx_info *info,
686 			    struct ieee80211_sta *sta,
687 			    struct sk_buff *skb,
688 			    u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
689 {
690 	struct rtl_priv *rtlpriv = rtl_priv(hw);
691 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
692 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
693 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
694 	struct rtlwifi_tx_info *tx_info = rtl_tx_skb_cb_info(skb);
695 	u8 *pdesc = (u8 *)pdesc_tx;
696 	u16 seq_number;
697 	__le16 fc = hdr->frame_control;
698 	unsigned int buf_len = 0;
699 	unsigned int skb_len = skb->len;
700 	u8 fw_qsel = _rtl8821ae_map_hwqueue_to_fwqueue(skb, hw_queue);
701 	bool firstseg = ((hdr->seq_ctrl &
702 			  cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
703 	bool lastseg = ((hdr->frame_control &
704 			 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
705 	dma_addr_t mapping;
706 	u8 short_gi = 0;
707 
708 	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
709 	rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
710 	/* reserve 8 byte for AMPDU early mode */
711 	if (rtlhal->earlymode_enable) {
712 		skb_push(skb, EM_HDR_LEN);
713 		memset(skb->data, 0, EM_HDR_LEN);
714 	}
715 	buf_len = skb->len;
716 	mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
717 				 PCI_DMA_TODEVICE);
718 	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
719 		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
720 			 "DMA mapping error\n");
721 		return;
722 	}
723 	CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_8821ae));
724 	if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
725 		firstseg = true;
726 		lastseg = true;
727 	}
728 	if (firstseg) {
729 		if (rtlhal->earlymode_enable) {
730 			SET_TX_DESC_PKT_OFFSET(pdesc, 1);
731 			SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN +
732 					   EM_HDR_LEN);
733 			if (ptcb_desc->empkt_num) {
734 				RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
735 					 "Insert 8 byte.pTcb->EMPktNum:%d\n",
736 					  ptcb_desc->empkt_num);
737 				_rtl8821ae_insert_emcontent(ptcb_desc,
738 					 (u8 *)(skb->data));
739 			}
740 		} else {
741 			SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
742 		}
743 
744 
745 		/* ptcb_desc->use_driver_rate = true; */
746 		SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
747 		if (ptcb_desc->hw_rate > DESC_RATEMCS0)
748 			short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
749 		else
750 			short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
751 
752 		SET_TX_DESC_DATA_SHORTGI(pdesc, short_gi);
753 
754 		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
755 			SET_TX_DESC_AGG_ENABLE(pdesc, 1);
756 			SET_TX_DESC_MAX_AGG_NUM(pdesc, 0x1f);
757 		}
758 		SET_TX_DESC_SEQ(pdesc, seq_number);
759 		SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
760 					!ptcb_desc->cts_enable) ? 1 : 0));
761 		SET_TX_DESC_HW_RTS_ENABLE(pdesc, 0);
762 		SET_TX_DESC_CTS2SELF(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
763 
764 		SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
765 		SET_TX_DESC_RTS_SC(pdesc, ptcb_desc->rts_sc);
766 		SET_TX_DESC_RTS_SHORT(pdesc,
767 			((ptcb_desc->rts_rate <= DESC_RATE54M) ?
768 			(ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
769 			(ptcb_desc->rts_use_shortgi ? 1 : 0)));
770 
771 		if (ptcb_desc->tx_enable_sw_calc_duration)
772 			SET_TX_DESC_NAV_USE_HDR(pdesc, 1);
773 
774 		SET_TX_DESC_DATA_BW(pdesc,
775 			rtl8821ae_bw_mapping(hw, ptcb_desc));
776 
777 		SET_TX_DESC_TX_SUB_CARRIER(pdesc,
778 			rtl8821ae_sc_mapping(hw, ptcb_desc));
779 
780 		SET_TX_DESC_LINIP(pdesc, 0);
781 		SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb_len);
782 		if (sta) {
783 			u8 ampdu_density = sta->ht_cap.ampdu_density;
784 
785 			SET_TX_DESC_AMPDU_DENSITY(pdesc, ampdu_density);
786 		}
787 		if (info->control.hw_key) {
788 			struct ieee80211_key_conf *keyconf =
789 				info->control.hw_key;
790 			switch (keyconf->cipher) {
791 			case WLAN_CIPHER_SUITE_WEP40:
792 			case WLAN_CIPHER_SUITE_WEP104:
793 			case WLAN_CIPHER_SUITE_TKIP:
794 				SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
795 				break;
796 			case WLAN_CIPHER_SUITE_CCMP:
797 				SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
798 				break;
799 			default:
800 				SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
801 				break;
802 			}
803 		}
804 
805 		SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
806 		SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
807 		SET_TX_DESC_RTS_RATE_FB_LIMIT(pdesc, 0xF);
808 		SET_TX_DESC_DISABLE_FB(pdesc, ptcb_desc->disable_ratefallback ?
809 				       1 : 0);
810 		SET_TX_DESC_USE_RATE(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
811 
812 		if (ieee80211_is_data_qos(fc)) {
813 			if (mac->rdg_en) {
814 				RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
815 					 "Enable RDG function.\n");
816 				SET_TX_DESC_RDG_ENABLE(pdesc, 1);
817 				SET_TX_DESC_HTC(pdesc, 1);
818 			}
819 		}
820 		/* tx report */
821 		rtl_set_tx_report(ptcb_desc, pdesc, hw, tx_info);
822 	}
823 
824 	SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
825 	SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
826 	SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)buf_len);
827 	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
828 	/* if (rtlpriv->dm.useramask) { */
829 	if (1) {
830 		SET_TX_DESC_RATE_ID(pdesc, ptcb_desc->ratr_index);
831 		SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
832 	} else {
833 		SET_TX_DESC_RATE_ID(pdesc, 0xC + ptcb_desc->ratr_index);
834 		SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
835 	}
836 	if (!ieee80211_is_data_qos(fc))  {
837 		SET_TX_DESC_HWSEQ_EN(pdesc, 1);
838 		SET_TX_DESC_HWSEQ_SEL(pdesc, 0);
839 	}
840 	SET_TX_DESC_MORE_FRAG(pdesc, (lastseg ? 0 : 1));
841 	if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
842 	    is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
843 		SET_TX_DESC_BMC(pdesc, 1);
844 	}
845 
846 	rtl8821ae_dm_set_tx_ant_by_tx_info(hw, pdesc, ptcb_desc->mac_id);
847 	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
848 }
849 
850 void rtl8821ae_tx_fill_cmddesc(struct ieee80211_hw *hw,
851 			       u8 *pdesc, bool firstseg,
852 			       bool lastseg, struct sk_buff *skb)
853 {
854 	struct rtl_priv *rtlpriv = rtl_priv(hw);
855 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
856 	u8 fw_queue = QSLT_BEACON;
857 
858 	dma_addr_t mapping = pci_map_single(rtlpci->pdev,
859 					    skb->data, skb->len,
860 					    PCI_DMA_TODEVICE);
861 
862 	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
863 		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
864 			 "DMA mapping error\n");
865 		return;
866 	}
867 	CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);
868 
869 	SET_TX_DESC_FIRST_SEG(pdesc, 1);
870 	SET_TX_DESC_LAST_SEG(pdesc, 1);
871 
872 	SET_TX_DESC_PKT_SIZE((u8 *)pdesc, (u16)(skb->len));
873 
874 	SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);
875 
876 	SET_TX_DESC_USE_RATE(pdesc, 1);
877 	SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
878 	SET_TX_DESC_DISABLE_FB(pdesc, 1);
879 
880 	SET_TX_DESC_DATA_BW(pdesc, 0);
881 
882 	SET_TX_DESC_HWSEQ_EN(pdesc, 1);
883 
884 	SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
885 
886 	SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
887 
888 	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
889 
890 	SET_TX_DESC_MACID(pdesc, 0);
891 
892 	SET_TX_DESC_OWN(pdesc, 1);
893 
894 	RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
895 		      "H2C Tx Cmd Content\n",
896 		      pdesc, TX_DESC_SIZE);
897 }
898 
899 void rtl8821ae_set_desc(struct ieee80211_hw *hw, u8 *pdesc,
900 			bool istx, u8 desc_name, u8 *val)
901 {
902 	if (istx) {
903 		switch (desc_name) {
904 		case HW_DESC_OWN:
905 			SET_TX_DESC_OWN(pdesc, 1);
906 			break;
907 		case HW_DESC_TX_NEXTDESC_ADDR:
908 			SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *)val);
909 			break;
910 		default:
911 			WARN_ONCE(true,
912 				  "rtl8821ae: ERR txdesc :%d not processed\n",
913 				  desc_name);
914 			break;
915 		}
916 	} else {
917 		switch (desc_name) {
918 		case HW_DESC_RXOWN:
919 			SET_RX_DESC_OWN(pdesc, 1);
920 			break;
921 		case HW_DESC_RXBUFF_ADDR:
922 			SET_RX_DESC_BUFF_ADDR(pdesc, *(u32 *)val);
923 			break;
924 		case HW_DESC_RXPKT_LEN:
925 			SET_RX_DESC_PKT_LEN(pdesc, *(u32 *)val);
926 			break;
927 		case HW_DESC_RXERO:
928 			SET_RX_DESC_EOR(pdesc, 1);
929 			break;
930 		default:
931 			WARN_ONCE(true,
932 				  "rtl8821ae: ERR rxdesc :%d not processed\n",
933 				  desc_name);
934 			break;
935 		}
936 	}
937 }
938 
939 u64 rtl8821ae_get_desc(struct ieee80211_hw *hw,
940 		       u8 *pdesc, bool istx, u8 desc_name)
941 {
942 	u32 ret = 0;
943 
944 	if (istx) {
945 		switch (desc_name) {
946 		case HW_DESC_OWN:
947 			ret = GET_TX_DESC_OWN(pdesc);
948 			break;
949 		case HW_DESC_TXBUFF_ADDR:
950 			ret = GET_TX_DESC_TX_BUFFER_ADDRESS(pdesc);
951 			break;
952 		default:
953 			WARN_ONCE(true,
954 				  "rtl8821ae: ERR txdesc :%d not processed\n",
955 				  desc_name);
956 			break;
957 		}
958 	} else {
959 		switch (desc_name) {
960 		case HW_DESC_OWN:
961 			ret = GET_RX_DESC_OWN(pdesc);
962 			break;
963 		case HW_DESC_RXPKT_LEN:
964 			ret = GET_RX_DESC_PKT_LEN(pdesc);
965 			break;
966 		case HW_DESC_RXBUFF_ADDR:
967 			ret = GET_RX_DESC_BUFF_ADDR(pdesc);
968 			break;
969 		default:
970 			WARN_ONCE(true,
971 				  "rtl8821ae: ERR rxdesc :%d not processed\n",
972 				  desc_name);
973 			break;
974 		}
975 	}
976 	return ret;
977 }
978 
979 bool rtl8821ae_is_tx_desc_closed(struct ieee80211_hw *hw,
980 				 u8 hw_queue, u16 index)
981 {
982 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
983 	struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
984 	u8 *entry = (u8 *)(&ring->desc[ring->idx]);
985 	u8 own = (u8)rtl8821ae_get_desc(hw, entry, true, HW_DESC_OWN);
986 
987 	/**
988 	 *beacon packet will only use the first
989 	 *descriptor defautly,and the own may not
990 	 *be cleared by the hardware
991 	 */
992 	if (own)
993 		return false;
994 	return true;
995 }
996 
997 void rtl8821ae_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
998 {
999 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1000 
1001 	if (hw_queue == BEACON_QUEUE) {
1002 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
1003 	} else {
1004 		rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
1005 			       BIT(0) << (hw_queue));
1006 	}
1007 }
1008