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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / realtek / rtlwifi / rtl8821ae / trx.c
blobcd809c99224537e6f354a81cadb2ee3a57c7662e
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2010 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 "trx.h"
11 #include "led.h"
12 #include "dm.h"
13 #include "phy.h"
14 #include "fw.h"
15
16 static u8 _rtl8821ae_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue)
17 {
18 __le16 fc = rtl_get_fc(skb);
19
20 if (unlikely(ieee80211_is_beacon(fc)))
21 return QSLT_BEACON;
22 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
23 return QSLT_MGNT;
24
25 return skb->priority;
26 }
27
28 static u16 odm_cfo(s8 value)
29 {
30 int ret_val;
31
32 if (value < 0) {
33 ret_val = 0 - value;
34 ret_val = (ret_val << 1) + (ret_val >> 1);
35 /* set bit12 as 1 for negative cfo */
36 ret_val = ret_val | BIT(12);
37 } else {
38 ret_val = value;
39 ret_val = (ret_val << 1) + (ret_val >> 1);
40 }
41 return ret_val;
42 }
43
44 static u8 _rtl8821ae_evm_dbm_jaguar(s8 value)
45 {
46 s8 ret_val = value;
47
48 /* -33dB~0dB to 33dB ~ 0dB*/
49 if (ret_val == -128)
50 ret_val = 127;
51 else if (ret_val < 0)
52 ret_val = 0 - ret_val;
53
54 ret_val = ret_val >> 1;
55 return ret_val;
56 }
57
58 static void query_rxphystatus(struct ieee80211_hw *hw,
59 struct rtl_stats *pstatus, __le32 *pdesc,
60 struct rx_fwinfo_8821ae *p_drvinfo,
61 bool bpacket_match_bssid,
62 bool bpacket_toself, bool packet_beacon)
63 {
64 struct rtl_priv *rtlpriv = rtl_priv(hw);
65 struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo;
66 struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
67 struct rtl_phy *rtlphy = &rtlpriv->phy;
68 s8 rx_pwr_all = 0, rx_pwr[4];
69 u8 rf_rx_num = 0, evm, evmdbm, pwdb_all;
70 u8 i, max_spatial_stream;
71 u32 rssi, total_rssi = 0;
72 bool is_cck = pstatus->is_cck;
73 u8 lan_idx, vga_idx;
74
75 /* Record it for next packet processing */
76 pstatus->packet_matchbssid = bpacket_match_bssid;
77 pstatus->packet_toself = bpacket_toself;
78 pstatus->packet_beacon = packet_beacon;
79 pstatus->rx_mimo_signalquality[0] = -1;
80 pstatus->rx_mimo_signalquality[1] = -1;
81
82 if (is_cck) {
83 u8 cck_highpwr;
84 u8 cck_agc_rpt;
85
86 cck_agc_rpt = p_phystrpt->cfosho[0];
87
88 /* (1)Hardware does not provide RSSI for CCK
89 * (2)PWDB, Average PWDB cacluated by
90 * hardware (for rate adaptive)
91 */
92 cck_highpwr = (u8)rtlphy->cck_high_power;
93
94 lan_idx = ((cck_agc_rpt & 0xE0) >> 5);
95 vga_idx = (cck_agc_rpt & 0x1f);
96 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) {
97 switch (lan_idx) {
98 case 7:
99 if (vga_idx <= 27)
100 /*VGA_idx = 27~2*/
101 rx_pwr_all = -100 + 2*(27-vga_idx);
102 else
103 rx_pwr_all = -100;
104 break;
105 case 6:
106 /*VGA_idx = 2~0*/
107 rx_pwr_all = -48 + 2*(2-vga_idx);
108 break;
109 case 5:
110 /*VGA_idx = 7~5*/
111 rx_pwr_all = -42 + 2*(7-vga_idx);
112 break;
113 case 4:
114 /*VGA_idx = 7~4*/
115 rx_pwr_all = -36 + 2*(7-vga_idx);
116 break;
117 case 3:
118 /*VGA_idx = 7~0*/
119 rx_pwr_all = -24 + 2*(7-vga_idx);
120 break;
121 case 2:
122 if (cck_highpwr)
123 /*VGA_idx = 5~0*/
124 rx_pwr_all = -12 + 2*(5-vga_idx);
125 else
126 rx_pwr_all = -6 + 2*(5-vga_idx);
127 break;
128 case 1:
129 rx_pwr_all = 8-2*vga_idx;
130 break;
131 case 0:
132 rx_pwr_all = 14-2*vga_idx;
133 break;
134 default:
135 break;
136 }
137 rx_pwr_all += 6;
138 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
139 if (!cck_highpwr) {
140 if (pwdb_all >= 80)
141 pwdb_all =
142 ((pwdb_all - 80)<<1) +
143 ((pwdb_all - 80)>>1) + 80;
144 else if ((pwdb_all <= 78) && (pwdb_all >= 20))
145 pwdb_all += 3;
146 if (pwdb_all > 100)
147 pwdb_all = 100;
148 }
149 } else { /* 8821 */
150 s8 pout = -6;
151
152 switch (lan_idx) {
153 case 5:
154 rx_pwr_all = pout - 32 - (2*vga_idx);
155 break;
156 case 4:
157 rx_pwr_all = pout - 24 - (2*vga_idx);
158 break;
159 case 2:
160 rx_pwr_all = pout - 11 - (2*vga_idx);
161 break;
162 case 1:
163 rx_pwr_all = pout + 5 - (2*vga_idx);
164 break;
165 case 0:
166 rx_pwr_all = pout + 21 - (2*vga_idx);
167 break;
168 }
169 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
170 }
171
172 pstatus->rx_pwdb_all = pwdb_all;
173 pstatus->recvsignalpower = rx_pwr_all;
174
175 /* (3) Get Signal Quality (EVM) */
176 if (bpacket_match_bssid) {
177 u8 sq;
178
179 if (pstatus->rx_pwdb_all > 40) {
180 sq = 100;
181 } else {
182 sq = p_phystrpt->pwdb_all;
183 if (sq > 64)
184 sq = 0;
185 else if (sq < 20)
186 sq = 100;
187 else
188 sq = ((64 - sq) * 100) / 44;
189 }
190
191 pstatus->signalquality = sq;
192 pstatus->rx_mimo_signalquality[0] = sq;
193 pstatus->rx_mimo_signalquality[1] = -1;
194 }
195 } else {
196 /* (1)Get RSSI for HT rate */
197 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
198 /* we will judge RF RX path now. */
199 if (rtlpriv->dm.rfpath_rxenable[i])
200 rf_rx_num++;
201
202 rx_pwr[i] = (p_phystrpt->gain_trsw[i] & 0x7f) - 110;
203
204 /* Translate DBM to percentage. */
205 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
206 total_rssi += rssi;
207
208 /* Get Rx snr value in DB */
209 pstatus->rx_snr[i] = p_phystrpt->rxsnr[i] / 2;
210 rtlpriv->stats.rx_snr_db[i] = p_phystrpt->rxsnr[i] / 2;
211
212 pstatus->cfo_short[i] = odm_cfo(p_phystrpt->cfosho[i]);
213 pstatus->cfo_tail[i] = odm_cfo(p_phystrpt->cfotail[i]);
214 /* Record Signal Strength for next packet */
215 pstatus->rx_mimo_signalstrength[i] = (u8)rssi;
216 }
217
218 /* (2)PWDB, Average PWDB cacluated by
219 * hardware (for rate adaptive)
220 */
221 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
222
223 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
224 pstatus->rx_pwdb_all = pwdb_all;
225 pstatus->rxpower = rx_pwr_all;
226 pstatus->recvsignalpower = rx_pwr_all;
227
228 /* (3)EVM of HT rate */
229 if ((pstatus->is_ht && pstatus->rate >= DESC_RATEMCS8 &&
230 pstatus->rate <= DESC_RATEMCS15) ||
231 (pstatus->is_vht &&
232 pstatus->rate >= DESC_RATEVHT2SS_MCS0 &&
233 pstatus->rate <= DESC_RATEVHT2SS_MCS9))
234 max_spatial_stream = 2;
235 else
236 max_spatial_stream = 1;
237
238 for (i = 0; i < max_spatial_stream; i++) {
239 evm = rtl_evm_db_to_percentage(p_phystrpt->rxevm[i]);
240 evmdbm = _rtl8821ae_evm_dbm_jaguar(p_phystrpt->rxevm[i]);
241
242 if (bpacket_match_bssid) {
243 /* Fill value in RFD, Get the first
244 * spatial stream only
245 */
246 if (i == 0)
247 pstatus->signalquality = evm;
248 pstatus->rx_mimo_signalquality[i] = evm;
249 pstatus->rx_mimo_evm_dbm[i] = evmdbm;
250 }
251 }
252 if (bpacket_match_bssid) {
253 for (i = RF90_PATH_A; i <= RF90_PATH_B; i++)
254 rtl_priv(hw)->dm.cfo_tail[i] =
255 (s8)p_phystrpt->cfotail[i];
256
257 rtl_priv(hw)->dm.packet_count++;
258 }
259 }
260
261 /* UI BSS List signal strength(in percentage),
262 * make it good looking, from 0~100.
263 */
264 if (is_cck)
265 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
266 pwdb_all));
267 else if (rf_rx_num != 0)
268 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
269 total_rssi /= rf_rx_num));
270 /*HW antenna diversity*/
271 rtldm->fat_table.antsel_rx_keep_0 = p_phystrpt->antidx_anta;
272 rtldm->fat_table.antsel_rx_keep_1 = p_phystrpt->antidx_antb;
273 }
274
275 static void translate_rx_signal_stuff(struct ieee80211_hw *hw,
276 struct sk_buff *skb,
277 struct rtl_stats *pstatus, __le32 *pdesc,
278 struct rx_fwinfo_8821ae *p_drvinfo)
279 {
280 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
281 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
282 struct ieee80211_hdr *hdr;
283 u8 *tmp_buf;
284 u8 *praddr;
285 u8 *psaddr;
286 __le16 fc;
287 bool packet_matchbssid, packet_toself, packet_beacon;
288
289 tmp_buf = skb->data + pstatus->rx_drvinfo_size + pstatus->rx_bufshift;
290
291 hdr = (struct ieee80211_hdr *)tmp_buf;
292 fc = hdr->frame_control;
293 praddr = hdr->addr1;
294 psaddr = ieee80211_get_SA(hdr);
295 ether_addr_copy(pstatus->psaddr, psaddr);
296
297 packet_matchbssid = (!ieee80211_is_ctl(fc) &&
298 (ether_addr_equal(mac->bssid,
299 ieee80211_has_tods(fc) ?
300 hdr->addr1 :
301 ieee80211_has_fromds(fc) ?
302 hdr->addr2 : hdr->addr3)) &&
303 (!pstatus->hwerror) &&
304 (!pstatus->crc) && (!pstatus->icv));
305
306 packet_toself = packet_matchbssid &&
307 (ether_addr_equal(praddr, rtlefuse->dev_addr));
308
309 if (ieee80211_is_beacon(hdr->frame_control))
310 packet_beacon = true;
311 else
312 packet_beacon = false;
313
314 if (packet_beacon && packet_matchbssid)
315 rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++;
316
317 if (packet_matchbssid &&
318 ieee80211_is_data_qos(hdr->frame_control) &&
319 !is_multicast_ether_addr(ieee80211_get_DA(hdr))) {
320 struct ieee80211_qos_hdr *hdr_qos =
321 (struct ieee80211_qos_hdr *)tmp_buf;
322 u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf;
323
324 if (tid != 0 && tid != 3)
325 rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++;
326 }
327
328 query_rxphystatus(hw, pstatus, pdesc, p_drvinfo,
329 packet_matchbssid, packet_toself,
330 packet_beacon);
331 /*_rtl8821ae_smart_antenna(hw, pstatus); */
332 rtl_process_phyinfo(hw, tmp_buf, pstatus);
333 }
334
335 static void rtl8821ae_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
336 __le32 *virtualaddress)
337 {
338 u32 dwtmp = 0;
339
340 memset(virtualaddress, 0, 8);
341
342 set_earlymode_pktnum(virtualaddress, ptcb_desc->empkt_num);
343 if (ptcb_desc->empkt_num == 1) {
344 dwtmp = ptcb_desc->empkt_len[0];
345 } else {
346 dwtmp = ptcb_desc->empkt_len[0];
347 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
348 dwtmp += ptcb_desc->empkt_len[1];
349 }
350 set_earlymode_len0(virtualaddress, dwtmp);
351
352 if (ptcb_desc->empkt_num <= 3) {
353 dwtmp = ptcb_desc->empkt_len[2];
354 } else {
355 dwtmp = ptcb_desc->empkt_len[2];
356 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
357 dwtmp += ptcb_desc->empkt_len[3];
358 }
359 set_earlymode_len1(virtualaddress, dwtmp);
360 if (ptcb_desc->empkt_num <= 5) {
361 dwtmp = ptcb_desc->empkt_len[4];
362 } else {
363 dwtmp = ptcb_desc->empkt_len[4];
364 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
365 dwtmp += ptcb_desc->empkt_len[5];
366 }
367 set_earlymode_len2_1(virtualaddress, dwtmp & 0xF);
368 set_earlymode_len2_2(virtualaddress, dwtmp >> 4);
369 if (ptcb_desc->empkt_num <= 7) {
370 dwtmp = ptcb_desc->empkt_len[6];
371 } else {
372 dwtmp = ptcb_desc->empkt_len[6];
373 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
374 dwtmp += ptcb_desc->empkt_len[7];
375 }
376 set_earlymode_len3(virtualaddress, dwtmp);
377 if (ptcb_desc->empkt_num <= 9) {
378 dwtmp = ptcb_desc->empkt_len[8];
379 } else {
380 dwtmp = ptcb_desc->empkt_len[8];
381 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0)+4;
382 dwtmp += ptcb_desc->empkt_len[9];
383 }
384 set_earlymode_len4(virtualaddress, dwtmp);
385 }
386
387 static bool rtl8821ae_get_rxdesc_is_ht(struct ieee80211_hw *hw, __le32 *pdesc)
388 {
389 struct rtl_priv *rtlpriv = rtl_priv(hw);
390 u8 rx_rate = 0;
391
392 rx_rate = get_rx_desc_rxmcs(pdesc);
393
394 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
395
396 if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15))
397 return true;
398 return false;
399 }
400
401 static bool rtl8821ae_get_rxdesc_is_vht(struct ieee80211_hw *hw, __le32 *pdesc)
402 {
403 struct rtl_priv *rtlpriv = rtl_priv(hw);
404 u8 rx_rate = 0;
405
406 rx_rate = get_rx_desc_rxmcs(pdesc);
407
408 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
409
410 if (rx_rate >= DESC_RATEVHT1SS_MCS0)
411 return true;
412 return false;
413 }
414
415 static u8 rtl8821ae_get_rx_vht_nss(struct ieee80211_hw *hw, __le32 *pdesc)
416 {
417 u8 rx_rate = 0;
418 u8 vht_nss = 0;
419
420 rx_rate = get_rx_desc_rxmcs(pdesc);
421 if ((rx_rate >= DESC_RATEVHT1SS_MCS0) &&
422 (rx_rate <= DESC_RATEVHT1SS_MCS9))
423 vht_nss = 1;
424 else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) &&
425 (rx_rate <= DESC_RATEVHT2SS_MCS9))
426 vht_nss = 2;
427
428 return vht_nss;
429 }
430
431 bool rtl8821ae_rx_query_desc(struct ieee80211_hw *hw,
432 struct rtl_stats *status,
433 struct ieee80211_rx_status *rx_status,
434 u8 *pdesc8, struct sk_buff *skb)
435 {
436 struct rtl_priv *rtlpriv = rtl_priv(hw);
437 struct rx_fwinfo_8821ae *p_drvinfo;
438 struct ieee80211_hdr *hdr;
439 u8 wake_match;
440 __le32 *pdesc = (__le32 *)pdesc8;
441 u32 phystatus = get_rx_desc_physt(pdesc);
442
443 status->length = (u16)get_rx_desc_pkt_len(pdesc);
444 status->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) *
445 RX_DRV_INFO_SIZE_UNIT;
446 status->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
447 status->icv = (u16)get_rx_desc_icv(pdesc);
448 status->crc = (u16)get_rx_desc_crc32(pdesc);
449 status->hwerror = (status->crc | status->icv);
450 status->decrypted = !get_rx_desc_swdec(pdesc);
451 status->rate = (u8)get_rx_desc_rxmcs(pdesc);
452 status->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
453 status->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
454 status->isfirst_ampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
455 status->timestamp_low = get_rx_desc_tsfl(pdesc);
456 status->rx_packet_bw = get_rx_desc_bw(pdesc);
457 status->macid = get_rx_desc_macid(pdesc);
458 status->is_short_gi = !(bool)get_rx_desc_splcp(pdesc);
459 status->is_ht = rtl8821ae_get_rxdesc_is_ht(hw, pdesc);
460 status->is_vht = rtl8821ae_get_rxdesc_is_vht(hw, pdesc);
461 status->vht_nss = rtl8821ae_get_rx_vht_nss(hw, pdesc);
462 status->is_cck = RTL8821AE_RX_HAL_IS_CCK_RATE(status->rate);
463
464 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
465 "rx_packet_bw=%s,is_ht %d, is_vht %d, vht_nss=%d,is_short_gi %d.\n",
466 (status->rx_packet_bw == 2) ? "80M" :
467 (status->rx_packet_bw == 1) ? "40M" : "20M",
468 status->is_ht, status->is_vht, status->vht_nss,
469 status->is_short_gi);
470
471 if (get_rx_status_desc_rpt_sel(pdesc))
472 status->packet_report_type = C2H_PACKET;
473 else
474 status->packet_report_type = NORMAL_RX;
475
476 if (get_rx_status_desc_pattern_match(pdesc))
477 wake_match = BIT(2);
478 else if (get_rx_status_desc_magic_match(pdesc))
479 wake_match = BIT(1);
480 else if (get_rx_status_desc_unicast_match(pdesc))
481 wake_match = BIT(0);
482 else
483 wake_match = 0;
484
485 if (wake_match)
486 RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD,
487 "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n",
488 wake_match);
489 rx_status->freq = hw->conf.chandef.chan->center_freq;
490 rx_status->band = hw->conf.chandef.chan->band;
491
492 hdr = (struct ieee80211_hdr *)(skb->data +
493 status->rx_drvinfo_size + status->rx_bufshift);
494
495 if (status->crc)
496 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
497
498 if (status->rx_packet_bw == HT_CHANNEL_WIDTH_20_40)
499 rx_status->bw = RATE_INFO_BW_40;
500 else if (status->rx_packet_bw == HT_CHANNEL_WIDTH_80)
501 rx_status->bw = RATE_INFO_BW_80;
502 if (status->is_ht)
503 rx_status->encoding = RX_ENC_HT;
504 if (status->is_vht)
505 rx_status->encoding = RX_ENC_VHT;
506
507 if (status->is_short_gi)
508 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
509
510 rx_status->nss = status->vht_nss;
511 rx_status->flag |= RX_FLAG_MACTIME_START;
512
513 /* hw will set status->decrypted true, if it finds the
514 * frame is open data frame or mgmt frame.
515 * So hw will not decryption robust managment frame
516 * for IEEE80211w but still set status->decrypted
517 * true, so here we should set it back to undecrypted
518 * for IEEE80211w frame, and mac80211 sw will help
519 * to decrypt it
520 */
521 if (status->decrypted) {
522 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) &&
523 (ieee80211_has_protected(hdr->frame_control)))
524 rx_status->flag |= RX_FLAG_DECRYPTED;
525 else
526 rx_status->flag &= ~RX_FLAG_DECRYPTED;
527 }
528
529 /* rate_idx: index of data rate into band's
530 * supported rates or MCS index if HT rates
531 * are use (RX_FLAG_HT)
532 */
533 rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht,
534 status->is_vht,
535 status->rate);
536
537 rx_status->mactime = status->timestamp_low;
538 if (phystatus) {
539 p_drvinfo = (struct rx_fwinfo_8821ae *)(skb->data +
540 status->rx_bufshift);
541
542 translate_rx_signal_stuff(hw, skb, status, pdesc, p_drvinfo);
543 }
544 rx_status->signal = status->recvsignalpower + 10;
545 if (status->packet_report_type == TX_REPORT2) {
546 status->macid_valid_entry[0] =
547 get_rx_rpt2_desc_macid_valid_1(pdesc);
548 status->macid_valid_entry[1] =
549 get_rx_rpt2_desc_macid_valid_2(pdesc);
550 }
551 return true;
552 }
553
554 static u8 rtl8821ae_bw_mapping(struct ieee80211_hw *hw,
555 struct rtl_tcb_desc *ptcb_desc)
556 {
557 struct rtl_priv *rtlpriv = rtl_priv(hw);
558 struct rtl_phy *rtlphy = &rtlpriv->phy;
559 u8 bw_setting_of_desc = 0;
560
561 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
562 "rtl8821ae_bw_mapping, current_chan_bw %d, packet_bw %d\n",
563 rtlphy->current_chan_bw, ptcb_desc->packet_bw);
564
565 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
566 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)
567 bw_setting_of_desc = 2;
568 else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40)
569 bw_setting_of_desc = 1;
570 else
571 bw_setting_of_desc = 0;
572 } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
573 if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) ||
574 (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80))
575 bw_setting_of_desc = 1;
576 else
577 bw_setting_of_desc = 0;
578 } else {
579 bw_setting_of_desc = 0;
580 }
581 return bw_setting_of_desc;
582 }
583
584 static u8 rtl8821ae_sc_mapping(struct ieee80211_hw *hw,
585 struct rtl_tcb_desc *ptcb_desc)
586 {
587 struct rtl_priv *rtlpriv = rtl_priv(hw);
588 struct rtl_phy *rtlphy = &rtlpriv->phy;
589 struct rtl_mac *mac = rtl_mac(rtlpriv);
590 u8 sc_setting_of_desc = 0;
591
592 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
593 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80) {
594 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
595 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
596 if (mac->cur_80_prime_sc ==
597 HAL_PRIME_CHNL_OFFSET_LOWER)
598 sc_setting_of_desc =
599 VHT_DATA_SC_40_LOWER_OF_80MHZ;
600 else if (mac->cur_80_prime_sc ==
601 HAL_PRIME_CHNL_OFFSET_UPPER)
602 sc_setting_of_desc =
603 VHT_DATA_SC_40_UPPER_OF_80MHZ;
604 else
605 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
606 "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
607 } else {
608 if ((mac->cur_40_prime_sc ==
609 HAL_PRIME_CHNL_OFFSET_LOWER) &&
610 (mac->cur_80_prime_sc ==
611 HAL_PRIME_CHNL_OFFSET_LOWER))
612 sc_setting_of_desc =
613 VHT_DATA_SC_20_LOWEST_OF_80MHZ;
614 else if ((mac->cur_40_prime_sc ==
615 HAL_PRIME_CHNL_OFFSET_UPPER) &&
616 (mac->cur_80_prime_sc ==
617 HAL_PRIME_CHNL_OFFSET_LOWER))
618 sc_setting_of_desc =
619 VHT_DATA_SC_20_LOWER_OF_80MHZ;
620 else if ((mac->cur_40_prime_sc ==
621 HAL_PRIME_CHNL_OFFSET_LOWER) &&
622 (mac->cur_80_prime_sc ==
623 HAL_PRIME_CHNL_OFFSET_UPPER))
624 sc_setting_of_desc =
625 VHT_DATA_SC_20_UPPER_OF_80MHZ;
626 else if ((mac->cur_40_prime_sc ==
627 HAL_PRIME_CHNL_OFFSET_UPPER) &&
628 (mac->cur_80_prime_sc ==
629 HAL_PRIME_CHNL_OFFSET_UPPER))
630 sc_setting_of_desc =
631 VHT_DATA_SC_20_UPPERST_OF_80MHZ;
632 else
633 RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
634 "rtl8821ae_sc_mapping: Not Correct Primary40MHz Setting\n");
635 }
636 } else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
637 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
638 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
639 } else if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20) {
640 if (mac->cur_40_prime_sc ==
641 HAL_PRIME_CHNL_OFFSET_UPPER) {
642 sc_setting_of_desc =
643 VHT_DATA_SC_20_UPPER_OF_80MHZ;
644 } else if (mac->cur_40_prime_sc ==
645 HAL_PRIME_CHNL_OFFSET_LOWER){
646 sc_setting_of_desc =
647 VHT_DATA_SC_20_LOWER_OF_80MHZ;
648 } else {
649 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
650 }
651 }
652 } else {
653 sc_setting_of_desc = VHT_DATA_SC_DONOT_CARE;
654 }
655
656 return sc_setting_of_desc;
657 }
658
659 void rtl8821ae_tx_fill_desc(struct ieee80211_hw *hw,
660 struct ieee80211_hdr *hdr, u8 *pdesc8, u8 *txbd,
661 struct ieee80211_tx_info *info,
662 struct ieee80211_sta *sta,
663 struct sk_buff *skb,
664 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
665 {
666 struct rtl_priv *rtlpriv = rtl_priv(hw);
667 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
668 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
669 struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
670 struct rtlwifi_tx_info *tx_info = rtl_tx_skb_cb_info(skb);
671 u16 seq_number;
672 __le16 fc = hdr->frame_control;
673 unsigned int buf_len = 0;
674 unsigned int skb_len = skb->len;
675 u8 fw_qsel = _rtl8821ae_map_hwqueue_to_fwqueue(skb, hw_queue);
676 bool firstseg = ((hdr->seq_ctrl &
677 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
678 bool lastseg = ((hdr->frame_control &
679 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
680 dma_addr_t mapping;
681 u8 short_gi = 0;
682 bool tmp_bool;
683 __le32 *pdesc = (__le32 *)pdesc8;
684
685 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
686 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
687 /* reserve 8 byte for AMPDU early mode */
688 if (rtlhal->earlymode_enable) {
689 skb_push(skb, EM_HDR_LEN);
690 memset(skb->data, 0, EM_HDR_LEN);
691 }
692 buf_len = skb->len;
693 mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
694 PCI_DMA_TODEVICE);
695 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
696 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
697 "DMA mapping error\n");
698 return;
699 }
700 clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_8821ae));
701 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
702 firstseg = true;
703 lastseg = true;
704 }
705 if (firstseg) {
706 if (rtlhal->earlymode_enable) {
707 set_tx_desc_pkt_offset(pdesc, 1);
708 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN +
709 EM_HDR_LEN);
710 if (ptcb_desc->empkt_num) {
711 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
712 "Insert 8 byte.pTcb->EMPktNum:%d\n",
713 ptcb_desc->empkt_num);
714 rtl8821ae_insert_emcontent(ptcb_desc,
715 (__le32 *)skb->data);
716 }
717 } else {
718 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
719 }
720
721
722 /* ptcb_desc->use_driver_rate = true; */
723 set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate);
724 if (ptcb_desc->hw_rate > DESC_RATEMCS0)
725 short_gi = (ptcb_desc->use_shortgi) ? 1 : 0;
726 else
727 short_gi = (ptcb_desc->use_shortpreamble) ? 1 : 0;
728
729 set_tx_desc_data_shortgi(pdesc, short_gi);
730
731 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
732 set_tx_desc_agg_enable(pdesc, 1);
733 set_tx_desc_max_agg_num(pdesc, 0x1f);
734 }
735 set_tx_desc_seq(pdesc, seq_number);
736 set_tx_desc_rts_enable(pdesc,
737 ((ptcb_desc->rts_enable &&
738 !ptcb_desc->cts_enable) ? 1 : 0));
739 set_tx_desc_hw_rts_enable(pdesc, 0);
740 set_tx_desc_cts2self(pdesc, ((ptcb_desc->cts_enable) ? 1 : 0));
741
742 set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate);
743 set_tx_desc_rts_sc(pdesc, ptcb_desc->rts_sc);
744 tmp_bool = ((ptcb_desc->rts_rate <= DESC_RATE54M) ?
745 (ptcb_desc->rts_use_shortpreamble ? 1 : 0) :
746 (ptcb_desc->rts_use_shortgi ? 1 : 0));
747 set_tx_desc_rts_short(pdesc, tmp_bool);
748
749 if (ptcb_desc->tx_enable_sw_calc_duration)
750 set_tx_desc_nav_use_hdr(pdesc, 1);
751
752 set_tx_desc_data_bw(pdesc,
753 rtl8821ae_bw_mapping(hw, ptcb_desc));
754
755 set_tx_desc_tx_sub_carrier(pdesc,
756 rtl8821ae_sc_mapping(hw, ptcb_desc));
757
758 set_tx_desc_linip(pdesc, 0);
759 set_tx_desc_pkt_size(pdesc, (u16)skb_len);
760 if (sta) {
761 u8 ampdu_density = sta->ht_cap.ampdu_density;
762
763 set_tx_desc_ampdu_density(pdesc, ampdu_density);
764 }
765 if (info->control.hw_key) {
766 struct ieee80211_key_conf *keyconf =
767 info->control.hw_key;
768 switch (keyconf->cipher) {
769 case WLAN_CIPHER_SUITE_WEP40:
770 case WLAN_CIPHER_SUITE_WEP104:
771 case WLAN_CIPHER_SUITE_TKIP:
772 set_tx_desc_sec_type(pdesc, 0x1);
773 break;
774 case WLAN_CIPHER_SUITE_CCMP:
775 set_tx_desc_sec_type(pdesc, 0x3);
776 break;
777 default:
778 set_tx_desc_sec_type(pdesc, 0x0);
779 break;
780 }
781 }
782
783 set_tx_desc_queue_sel(pdesc, fw_qsel);
784 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
785 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
786 set_tx_desc_disable_fb(pdesc, ptcb_desc->disable_ratefallback ?
787 1 : 0);
788 set_tx_desc_use_rate(pdesc, ptcb_desc->use_driver_rate ? 1 : 0);
789
790 if (ieee80211_is_data_qos(fc)) {
791 if (mac->rdg_en) {
792 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
793 "Enable RDG function.\n");
794 set_tx_desc_rdg_enable(pdesc, 1);
795 set_tx_desc_htc(pdesc, 1);
796 }
797 }
798 /* tx report */
799 rtl_set_tx_report(ptcb_desc, pdesc8, hw, tx_info);
800 }
801
802 set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
803 set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
804 set_tx_desc_tx_buffer_size(pdesc, buf_len);
805 set_tx_desc_tx_buffer_address(pdesc, mapping);
806 /* if (rtlpriv->dm.useramask) { */
807 if (1) {
808 set_tx_desc_rate_id(pdesc, ptcb_desc->ratr_index);
809 set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
810 } else {
811 set_tx_desc_rate_id(pdesc, 0xC + ptcb_desc->ratr_index);
812 set_tx_desc_macid(pdesc, ptcb_desc->mac_id);
813 }
814 if (!ieee80211_is_data_qos(fc)) {
815 set_tx_desc_hwseq_en(pdesc, 1);
816 set_tx_desc_hwseq_sel(pdesc, 0);
817 }
818 set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
819 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
820 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
821 set_tx_desc_bmc(pdesc, 1);
822 }
823
824 rtl8821ae_dm_set_tx_ant_by_tx_info(hw, pdesc8, ptcb_desc->mac_id);
825 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
826 }
827
828 void rtl8821ae_tx_fill_cmddesc(struct ieee80211_hw *hw,
829 u8 *pdesc8, bool firstseg,
830 bool lastseg, struct sk_buff *skb)
831 {
832 struct rtl_priv *rtlpriv = rtl_priv(hw);
833 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
834 u8 fw_queue = QSLT_BEACON;
835 __le32 *pdesc = (__le32 *)pdesc8;
836
837 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
838 skb->data, skb->len,
839 PCI_DMA_TODEVICE);
840
841 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
842 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
843 "DMA mapping error\n");
844 return;
845 }
846 clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
847
848 set_tx_desc_first_seg(pdesc, 1);
849 set_tx_desc_last_seg(pdesc, 1);
850
851 set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
852
853 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
854
855 set_tx_desc_use_rate(pdesc, 1);
856 set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
857 set_tx_desc_disable_fb(pdesc, 1);
858
859 set_tx_desc_data_bw(pdesc, 0);
860
861 set_tx_desc_hwseq_en(pdesc, 1);
862
863 set_tx_desc_queue_sel(pdesc, fw_queue);
864
865 set_tx_desc_tx_buffer_size(pdesc, skb->len);
866
867 set_tx_desc_tx_buffer_address(pdesc, mapping);
868
869 set_tx_desc_macid(pdesc, 0);
870
871 set_tx_desc_own(pdesc, 1);
872
873 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
874 "H2C Tx Cmd Content\n",
875 pdesc8, TX_DESC_SIZE);
876 }
877
878 void rtl8821ae_set_desc(struct ieee80211_hw *hw, u8 *pdesc8,
879 bool istx, u8 desc_name, u8 *val)
880 {
881 __le32 *pdesc = (__le32 *)pdesc8;
882
883 if (istx) {
884 switch (desc_name) {
885 case HW_DESC_OWN:
886 set_tx_desc_own(pdesc, 1);
887 break;
888 case HW_DESC_TX_NEXTDESC_ADDR:
889 set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
890 break;
891 default:
892 WARN_ONCE(true,
893 "rtl8821ae: ERR txdesc :%d not processed\n",
894 desc_name);
895 break;
896 }
897 } else {
898 switch (desc_name) {
899 case HW_DESC_RXOWN:
900 set_rx_desc_own(pdesc, 1);
901 break;
902 case HW_DESC_RXBUFF_ADDR:
903 set_rx_desc_buff_addr(pdesc, *(u32 *)val);
904 break;
905 case HW_DESC_RXPKT_LEN:
906 set_rx_desc_pkt_len(pdesc, *(u32 *)val);
907 break;
908 case HW_DESC_RXERO:
909 set_rx_desc_eor(pdesc, 1);
910 break;
911 default:
912 WARN_ONCE(true,
913 "rtl8821ae: ERR rxdesc :%d not processed\n",
914 desc_name);
915 break;
916 }
917 }
918 }
919
920 u64 rtl8821ae_get_desc(struct ieee80211_hw *hw,
921 u8 *pdesc8, bool istx, u8 desc_name)
922 {
923 u32 ret = 0;
924 __le32 *pdesc = (__le32 *)pdesc8;
925
926 if (istx) {
927 switch (desc_name) {
928 case HW_DESC_OWN:
929 ret = get_tx_desc_own(pdesc);
930 break;
931 case HW_DESC_TXBUFF_ADDR:
932 ret = get_tx_desc_tx_buffer_address(pdesc);
933 break;
934 default:
935 WARN_ONCE(true,
936 "rtl8821ae: ERR txdesc :%d not processed\n",
937 desc_name);
938 break;
939 }
940 } else {
941 switch (desc_name) {
942 case HW_DESC_OWN:
943 ret = get_rx_desc_own(pdesc);
944 break;
945 case HW_DESC_RXPKT_LEN:
946 ret = get_rx_desc_pkt_len(pdesc);
947 break;
948 case HW_DESC_RXBUFF_ADDR:
949 ret = get_rx_desc_buff_addr(pdesc);
950 break;
951 default:
952 WARN_ONCE(true,
953 "rtl8821ae: ERR rxdesc :%d not processed\n",
954 desc_name);
955 break;
956 }
957 }
958 return ret;
959 }
960
961 bool rtl8821ae_is_tx_desc_closed(struct ieee80211_hw *hw,
962 u8 hw_queue, u16 index)
963 {
964 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
965 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
966 u8 *entry = (u8 *)(&ring->desc[ring->idx]);
967 u8 own = (u8)rtl8821ae_get_desc(hw, entry, true, HW_DESC_OWN);
968
969 /**
970 *beacon packet will only use the first
971 *descriptor defautly,and the own may not
972 *be cleared by the hardware
973 */
974 if (own)
975 return false;
976 return true;
977 }
978
979 void rtl8821ae_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
980 {
981 struct rtl_priv *rtlpriv = rtl_priv(hw);
982
983 if (hw_queue == BEACON_QUEUE) {
984 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
985 } else {
986 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
987 BIT(0) << (hw_queue));
988 }
989 }
Linux with added FPC-III support