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
_rtl92ce_map_hwqueue_to_fwqueue(struct sk_buff * skb,u8 hw_queue)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
_rtl92c_query_rxpwrpercentage(s8 antpower)26 static u8 _rtl92c_query_rxpwrpercentage(s8 antpower)
27 {
28 if ((antpower <= -100) || (antpower >= 20))
29 return 0;
30 else if (antpower >= 0)
31 return 100;
32 else
33 return 100 + antpower;
34 }
35
_rtl92ce_signal_scale_mapping(struct ieee80211_hw * hw,long currsig)36 static long _rtl92ce_signal_scale_mapping(struct ieee80211_hw *hw,
37 long currsig)
38 {
39 long retsig;
40
41 if (currsig >= 61 && currsig <= 100)
42 retsig = 90 + ((currsig - 60) / 4);
43 else if (currsig >= 41 && currsig <= 60)
44 retsig = 78 + ((currsig - 40) / 2);
45 else if (currsig >= 31 && currsig <= 40)
46 retsig = 66 + (currsig - 30);
47 else if (currsig >= 21 && currsig <= 30)
48 retsig = 54 + (currsig - 20);
49 else if (currsig >= 5 && currsig <= 20)
50 retsig = 42 + (((currsig - 5) * 2) / 3);
51 else if (currsig == 4)
52 retsig = 36;
53 else if (currsig == 3)
54 retsig = 27;
55 else if (currsig == 2)
56 retsig = 18;
57 else if (currsig == 1)
58 retsig = 9;
59 else
60 retsig = currsig;
61
62 return retsig;
63 }
64
_rtl92ce_query_rxphystatus(struct ieee80211_hw * hw,struct rtl_stats * pstats,struct rx_desc_92c * pdesc,struct rx_fwinfo_92c * p_drvinfo,bool packet_match_bssid,bool packet_toself,bool packet_beacon)65 static void _rtl92ce_query_rxphystatus(struct ieee80211_hw *hw,
66 struct rtl_stats *pstats,
67 struct rx_desc_92c *pdesc,
68 struct rx_fwinfo_92c *p_drvinfo,
69 bool packet_match_bssid,
70 bool packet_toself,
71 bool packet_beacon)
72 {
73 struct rtl_priv *rtlpriv = rtl_priv(hw);
74 struct phy_sts_cck_8192s_t *cck_buf;
75 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
76 s8 rx_pwr_all = 0, rx_pwr[4];
77 u8 evm, pwdb_all, rf_rx_num = 0;
78 u8 i, max_spatial_stream;
79 u32 rssi, total_rssi = 0;
80 bool is_cck_rate;
81
82 is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
83 pstats->packet_matchbssid = packet_match_bssid;
84 pstats->packet_toself = packet_toself;
85 pstats->is_cck = is_cck_rate;
86 pstats->packet_beacon = packet_beacon;
87 pstats->rx_mimo_sig_qual[0] = -1;
88 pstats->rx_mimo_sig_qual[1] = -1;
89
90 if (is_cck_rate) {
91 u8 report, cck_highpwr;
92
93 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
94
95 if (ppsc->rfpwr_state == ERFON)
96 cck_highpwr = (u8) rtl_get_bbreg(hw,
97 RFPGA0_XA_HSSIPARAMETER2,
98 BIT(9));
99 else
100 cck_highpwr = false;
101
102 if (!cck_highpwr) {
103 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
104
105 report = cck_buf->cck_agc_rpt & 0xc0;
106 report = report >> 6;
107 switch (report) {
108 case 0x3:
109 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
110 break;
111 case 0x2:
112 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
113 break;
114 case 0x1:
115 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
116 break;
117 case 0x0:
118 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
119 break;
120 }
121 } else {
122 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
123
124 report = p_drvinfo->cfosho[0] & 0x60;
125 report = report >> 5;
126 switch (report) {
127 case 0x3:
128 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
129 break;
130 case 0x2:
131 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
132 break;
133 case 0x1:
134 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
135 break;
136 case 0x0:
137 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
138 break;
139 }
140 }
141
142 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
143 /* CCK gain is smaller than OFDM/MCS gain,
144 * so we add gain diff by experiences,
145 * the val is 6
146 */
147 pwdb_all += 6;
148 if (pwdb_all > 100)
149 pwdb_all = 100;
150 /* modify the offset to make the same
151 * gain index with OFDM.
152 */
153 if (pwdb_all > 34 && pwdb_all <= 42)
154 pwdb_all -= 2;
155 else if (pwdb_all > 26 && pwdb_all <= 34)
156 pwdb_all -= 6;
157 else if (pwdb_all > 14 && pwdb_all <= 26)
158 pwdb_all -= 8;
159 else if (pwdb_all > 4 && pwdb_all <= 14)
160 pwdb_all -= 4;
161
162 pstats->rx_pwdb_all = pwdb_all;
163 pstats->recvsignalpower = rx_pwr_all;
164
165 /* (3) Get Signal Quality (EVM) */
166 if (packet_match_bssid) {
167 u8 sq;
168
169 if (pstats->rx_pwdb_all > 40)
170 sq = 100;
171 else {
172 sq = cck_buf->sq_rpt;
173 if (sq > 64)
174 sq = 0;
175 else if (sq < 20)
176 sq = 100;
177 else
178 sq = ((64 - sq) * 100) / 44;
179 }
180
181 pstats->signalquality = sq;
182 pstats->rx_mimo_sig_qual[0] = sq;
183 pstats->rx_mimo_sig_qual[1] = -1;
184 }
185 } else {
186 rtlpriv->dm.rfpath_rxenable[0] =
187 rtlpriv->dm.rfpath_rxenable[1] = true;
188 /* (1)Get RSSI for HT rate */
189 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
190 /* we will judge RF RX path now. */
191 if (rtlpriv->dm.rfpath_rxenable[i])
192 rf_rx_num++;
193
194 rx_pwr[i] =
195 ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
196 /* Translate DBM to percentage. */
197 rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
198 total_rssi += rssi;
199 /* Get Rx snr value in DB */
200 rtlpriv->stats.rx_snr_db[i] =
201 (long)(p_drvinfo->rxsnr[i] / 2);
202
203 /* Record Signal Strength for next packet */
204 if (packet_match_bssid)
205 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
206 }
207
208 /* (2)PWDB, Average PWDB cacluated by
209 * hardware (for rate adaptive)
210 */
211 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
212 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
213 pstats->rx_pwdb_all = pwdb_all;
214 pstats->rxpower = rx_pwr_all;
215 pstats->recvsignalpower = rx_pwr_all;
216
217 /* (3)EVM of HT rate */
218 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
219 pstats->rate <= DESC_RATEMCS15)
220 max_spatial_stream = 2;
221 else
222 max_spatial_stream = 1;
223
224 for (i = 0; i < max_spatial_stream; i++) {
225 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
226
227 if (packet_match_bssid) {
228 /* Fill value in RFD, Get the first
229 * spatial stream only
230 */
231 if (i == 0)
232 pstats->signalquality =
233 (u8)(evm & 0xff);
234 pstats->rx_mimo_sig_qual[i] = (u8)(evm & 0xff);
235 }
236 }
237 }
238
239 /* UI BSS List signal strength(in percentage),
240 * make it good looking, from 0~100.
241 */
242 if (is_cck_rate)
243 pstats->signalstrength =
244 (u8)(_rtl92ce_signal_scale_mapping(hw, pwdb_all));
245 else if (rf_rx_num != 0)
246 pstats->signalstrength =
247 (u8)(_rtl92ce_signal_scale_mapping
248 (hw, total_rssi /= rf_rx_num));
249 }
250
_rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw * hw,struct sk_buff * skb,struct rtl_stats * pstats,struct rx_desc_92c * pdesc,struct rx_fwinfo_92c * p_drvinfo)251 static void _rtl92ce_translate_rx_signal_stuff(struct ieee80211_hw *hw,
252 struct sk_buff *skb,
253 struct rtl_stats *pstats,
254 struct rx_desc_92c *pdesc,
255 struct rx_fwinfo_92c *p_drvinfo)
256 {
257 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
258 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
259
260 struct ieee80211_hdr *hdr;
261 u8 *tmp_buf;
262 u8 *praddr;
263 __le16 fc;
264 u16 type, c_fc;
265 bool packet_matchbssid, packet_toself, packet_beacon = false;
266
267 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
268
269 hdr = (struct ieee80211_hdr *)tmp_buf;
270 fc = hdr->frame_control;
271 c_fc = le16_to_cpu(fc);
272 type = WLAN_FC_GET_TYPE(fc);
273 praddr = hdr->addr1;
274
275 packet_matchbssid =
276 ((IEEE80211_FTYPE_CTL != type) &&
277 ether_addr_equal(mac->bssid,
278 (c_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
279 (c_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
280 hdr->addr3) &&
281 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
282
283 packet_toself = packet_matchbssid &&
284 ether_addr_equal(praddr, rtlefuse->dev_addr);
285
286 if (ieee80211_is_beacon(fc))
287 packet_beacon = true;
288
289 _rtl92ce_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
290 packet_matchbssid, packet_toself,
291 packet_beacon);
292
293 rtl_process_phyinfo(hw, tmp_buf, pstats);
294 }
295
rtl92ce_rx_query_desc(struct ieee80211_hw * hw,struct rtl_stats * stats,struct ieee80211_rx_status * rx_status,u8 * p_desc8,struct sk_buff * skb)296 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
297 struct rtl_stats *stats,
298 struct ieee80211_rx_status *rx_status,
299 u8 *p_desc8, struct sk_buff *skb)
300 {
301 struct rx_fwinfo_92c *p_drvinfo;
302 struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc8;
303 struct ieee80211_hdr *hdr;
304 __le32 *p_desc = (__le32 *)p_desc8;
305 u32 phystatus = get_rx_desc_physt(p_desc);
306
307 stats->length = (u16)get_rx_desc_pkt_len(p_desc);
308 stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(p_desc) *
309 RX_DRV_INFO_SIZE_UNIT;
310 stats->rx_bufshift = (u8)(get_rx_desc_shift(p_desc) & 0x03);
311 stats->icv = (u16)get_rx_desc_icv(p_desc);
312 stats->crc = (u16)get_rx_desc_crc32(p_desc);
313 stats->hwerror = (stats->crc | stats->icv);
314 stats->decrypted = !get_rx_desc_swdec(p_desc);
315 stats->rate = (u8)get_rx_desc_rxmcs(p_desc);
316 stats->shortpreamble = (u16)get_rx_desc_splcp(p_desc);
317 stats->isampdu = (bool)(get_rx_desc_paggr(p_desc) == 1);
318 stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(p_desc) == 1) &&
319 (get_rx_desc_faggr(p_desc) == 1));
320 stats->timestamp_low = get_rx_desc_tsfl(p_desc);
321 stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(p_desc);
322 stats->is_ht = (bool)get_rx_desc_rxht(p_desc);
323
324 stats->is_cck = RX_HAL_IS_CCK_RATE(pdesc->rxmcs);
325
326 rx_status->freq = hw->conf.chandef.chan->center_freq;
327 rx_status->band = hw->conf.chandef.chan->band;
328
329 hdr = (struct ieee80211_hdr *)(skb->data + stats->rx_drvinfo_size
330 + stats->rx_bufshift);
331
332 if (stats->crc)
333 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
334
335 if (stats->rx_is40mhzpacket)
336 rx_status->bw = RATE_INFO_BW_40;
337
338 if (stats->is_ht)
339 rx_status->encoding = RX_ENC_HT;
340
341 rx_status->flag |= RX_FLAG_MACTIME_START;
342
343 /* hw will set stats->decrypted true, if it finds the
344 * frame is open data frame or mgmt frame.
345 * So hw will not decryption robust managment frame
346 * for IEEE80211w but still set status->decrypted
347 * true, so here we should set it back to undecrypted
348 * for IEEE80211w frame, and mac80211 sw will help
349 * to decrypt it
350 */
351 if (stats->decrypted) {
352 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
353 (ieee80211_has_protected(hdr->frame_control)))
354 rx_status->flag &= ~RX_FLAG_DECRYPTED;
355 else
356 rx_status->flag |= RX_FLAG_DECRYPTED;
357 }
358 /* rate_idx: index of data rate into band's
359 * supported rates or MCS index if HT rates
360 * are use (RX_FLAG_HT)
361 * Notice: this is diff with windows define
362 */
363 rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
364 false, stats->rate);
365
366 rx_status->mactime = stats->timestamp_low;
367 if (phystatus) {
368 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
369 stats->rx_bufshift);
370
371 _rtl92ce_translate_rx_signal_stuff(hw,
372 skb, stats, pdesc,
373 p_drvinfo);
374 }
375
376 /*rx_status->qual = stats->signal; */
377 rx_status->signal = stats->recvsignalpower + 10;
378
379 return true;
380 }
381
rtl92ce_tx_fill_desc(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u8 * pdesc8,u8 * pbd_desc_tx,struct ieee80211_tx_info * info,struct ieee80211_sta * sta,struct sk_buff * skb,u8 hw_queue,struct rtl_tcb_desc * tcb_desc)382 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
383 struct ieee80211_hdr *hdr, u8 *pdesc8,
384 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
385 struct ieee80211_sta *sta,
386 struct sk_buff *skb,
387 u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
388 {
389 struct rtl_priv *rtlpriv = rtl_priv(hw);
390 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
391 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
392 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
393 bool defaultadapter = true;
394 __le32 *pdesc = (__le32 *)pdesc8;
395 u16 seq_number;
396 __le16 fc = hdr->frame_control;
397 u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue(skb, hw_queue);
398 bool firstseg = ((hdr->seq_ctrl &
399 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0);
400
401 bool lastseg = ((hdr->frame_control &
402 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0);
403
404 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
405 skb->data, skb->len,
406 PCI_DMA_TODEVICE);
407
408 u8 bw_40 = 0;
409
410 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
411 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
412 "DMA mapping error\n");
413 return;
414 }
415 rcu_read_lock();
416 sta = get_sta(hw, mac->vif, mac->bssid);
417 if (mac->opmode == NL80211_IFTYPE_STATION) {
418 bw_40 = mac->bw_40;
419 } else if (mac->opmode == NL80211_IFTYPE_AP ||
420 mac->opmode == NL80211_IFTYPE_ADHOC ||
421 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
422 if (sta)
423 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
424 }
425
426 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
427
428 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
429
430 clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92c));
431
432 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
433 firstseg = true;
434 lastseg = true;
435 }
436 if (firstseg) {
437 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
438
439 set_tx_desc_tx_rate(pdesc, tcb_desc->hw_rate);
440
441 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
442 set_tx_desc_data_shortgi(pdesc, 1);
443
444 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
445 set_tx_desc_agg_break(pdesc, 1);
446 set_tx_desc_max_agg_num(pdesc, 0x14);
447 }
448 set_tx_desc_seq(pdesc, seq_number);
449
450 set_tx_desc_rts_enable(pdesc, ((tcb_desc->rts_enable &&
451 !tcb_desc->
452 cts_enable) ? 1 : 0));
453 set_tx_desc_hw_rts_enable(pdesc,
454 ((tcb_desc->rts_enable
455 || tcb_desc->cts_enable) ? 1 : 0));
456 set_tx_desc_cts2self(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
457 set_tx_desc_rts_stbc(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
458
459 set_tx_desc_rts_rate(pdesc, tcb_desc->rts_rate);
460 set_tx_desc_rts_bw(pdesc, 0);
461 set_tx_desc_rts_sc(pdesc, tcb_desc->rts_sc);
462 set_tx_desc_rts_short(pdesc,
463 ((tcb_desc->rts_rate <= DESC_RATE54M) ?
464 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
465 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
466
467 if (bw_40) {
468 if (tcb_desc->packet_bw) {
469 set_tx_desc_data_bw(pdesc, 1);
470 set_tx_desc_tx_sub_carrier(pdesc, 3);
471 } else {
472 set_tx_desc_data_bw(pdesc, 0);
473 set_tx_desc_tx_sub_carrier(pdesc,
474 mac->cur_40_prime_sc);
475 }
476 } else {
477 set_tx_desc_data_bw(pdesc, 0);
478 set_tx_desc_tx_sub_carrier(pdesc, 0);
479 }
480
481 set_tx_desc_linip(pdesc, 0);
482 set_tx_desc_pkt_size(pdesc, (u16)skb->len);
483
484 if (sta) {
485 u8 ampdu_density = sta->ht_cap.ampdu_density;
486
487 set_tx_desc_ampdu_density(pdesc, ampdu_density);
488 }
489
490 if (info->control.hw_key) {
491 struct ieee80211_key_conf *keyconf =
492 info->control.hw_key;
493
494 switch (keyconf->cipher) {
495 case WLAN_CIPHER_SUITE_WEP40:
496 case WLAN_CIPHER_SUITE_WEP104:
497 case WLAN_CIPHER_SUITE_TKIP:
498 set_tx_desc_sec_type(pdesc, 0x1);
499 break;
500 case WLAN_CIPHER_SUITE_CCMP:
501 set_tx_desc_sec_type(pdesc, 0x3);
502 break;
503 default:
504 set_tx_desc_sec_type(pdesc, 0x0);
505 break;
506
507 }
508 }
509
510 set_tx_desc_pkt_id(pdesc, 0);
511 set_tx_desc_queue_sel(pdesc, fw_qsel);
512
513 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
514 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
515 set_tx_desc_disable_fb(pdesc, 0);
516 set_tx_desc_use_rate(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
517
518 if (ieee80211_is_data_qos(fc)) {
519 if (mac->rdg_en) {
520 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
521 "Enable RDG function\n");
522 set_tx_desc_rdg_enable(pdesc, 1);
523 set_tx_desc_htc(pdesc, 1);
524 }
525 }
526 }
527 rcu_read_unlock();
528
529 set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
530 set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
531
532 set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
533
534 set_tx_desc_tx_buffer_address(pdesc, mapping);
535
536 if (rtlpriv->dm.useramask) {
537 set_tx_desc_rate_id(pdesc, tcb_desc->ratr_index);
538 set_tx_desc_macid(pdesc, tcb_desc->mac_id);
539 } else {
540 set_tx_desc_rate_id(pdesc, 0xC + tcb_desc->ratr_index);
541 set_tx_desc_macid(pdesc, tcb_desc->ratr_index);
542 }
543
544 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
545 set_tx_desc_hwseq_en(pdesc, 1);
546 set_tx_desc_pkt_id(pdesc, 8);
547
548 if (!defaultadapter)
549 set_tx_desc_qos(pdesc, 1);
550 }
551
552 set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
553
554 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
555 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
556 set_tx_desc_bmc(pdesc, 1);
557 }
558
559 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
560 }
561
rtl92ce_tx_fill_cmddesc(struct ieee80211_hw * hw,u8 * pdesc8,bool firstseg,bool lastseg,struct sk_buff * skb)562 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
563 u8 *pdesc8, bool firstseg,
564 bool lastseg, struct sk_buff *skb)
565 {
566 struct rtl_priv *rtlpriv = rtl_priv(hw);
567 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
568 u8 fw_queue = QSLT_BEACON;
569 __le32 *pdesc = (__le32 *)pdesc8;
570
571 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
572 skb->data, skb->len,
573 PCI_DMA_TODEVICE);
574
575 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
576 __le16 fc = hdr->frame_control;
577
578 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
579 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
580 "DMA mapping error\n");
581 return;
582 }
583 clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
584
585 if (firstseg)
586 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
587
588 set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
589
590 set_tx_desc_seq(pdesc, 0);
591
592 set_tx_desc_linip(pdesc, 0);
593
594 set_tx_desc_queue_sel(pdesc, fw_queue);
595
596 set_tx_desc_first_seg(pdesc, 1);
597 set_tx_desc_last_seg(pdesc, 1);
598
599 set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
600
601 set_tx_desc_tx_buffer_address(pdesc, mapping);
602
603 set_tx_desc_rate_id(pdesc, 7);
604 set_tx_desc_macid(pdesc, 0);
605
606 set_tx_desc_own(pdesc, 1);
607
608 set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
609
610 set_tx_desc_first_seg(pdesc, 1);
611 set_tx_desc_last_seg(pdesc, 1);
612
613 set_tx_desc_offset(pdesc, 0x20);
614
615 set_tx_desc_use_rate(pdesc, 1);
616
617 if (!ieee80211_is_data_qos(fc)) {
618 set_tx_desc_hwseq_en(pdesc, 1);
619 set_tx_desc_pkt_id(pdesc, 8);
620 }
621
622 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
623 "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
624 }
625
rtl92ce_set_desc(struct ieee80211_hw * hw,u8 * pdesc8,bool istx,u8 desc_name,u8 * val)626 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
627 u8 desc_name, u8 *val)
628 {
629 __le32 *pdesc = (__le32 *)pdesc8;
630
631 if (istx) {
632 switch (desc_name) {
633 case HW_DESC_OWN:
634 wmb();
635 set_tx_desc_own(pdesc, 1);
636 break;
637 case HW_DESC_TX_NEXTDESC_ADDR:
638 set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
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_RXOWN:
648 wmb();
649 set_rx_desc_own(pdesc, 1);
650 break;
651 case HW_DESC_RXBUFF_ADDR:
652 set_rx_desc_buff_addr(pdesc, *(u32 *)val);
653 break;
654 case HW_DESC_RXPKT_LEN:
655 set_rx_desc_pkt_len(pdesc, *(u32 *)val);
656 break;
657 case HW_DESC_RXERO:
658 set_rx_desc_eor(pdesc, 1);
659 break;
660 default:
661 WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
662 desc_name);
663 break;
664 }
665 }
666 }
667
rtl92ce_get_desc(struct ieee80211_hw * hw,u8 * p_desc8,bool istx,u8 desc_name)668 u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8,
669 bool istx, u8 desc_name)
670 {
671 u32 ret = 0;
672 __le32 *p_desc = (__le32 *)p_desc8;
673
674 if (istx) {
675 switch (desc_name) {
676 case HW_DESC_OWN:
677 ret = get_tx_desc_own(p_desc);
678 break;
679 case HW_DESC_TXBUFF_ADDR:
680 ret = get_tx_desc_tx_buffer_address(p_desc);
681 break;
682 default:
683 WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
684 desc_name);
685 break;
686 }
687 } else {
688 switch (desc_name) {
689 case HW_DESC_OWN:
690 ret = get_rx_desc_own(p_desc);
691 break;
692 case HW_DESC_RXPKT_LEN:
693 ret = get_rx_desc_pkt_len(p_desc);
694 break;
695 case HW_DESC_RXBUFF_ADDR:
696 ret = get_rx_desc_buff_addr(p_desc);
697 break;
698 default:
699 WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
700 desc_name);
701 break;
702 }
703 }
704 return ret;
705 }
706
rtl92ce_is_tx_desc_closed(struct ieee80211_hw * hw,u8 hw_queue,u16 index)707 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
708 u8 hw_queue, u16 index)
709 {
710 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
711 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
712 u8 *entry = (u8 *)(&ring->desc[ring->idx]);
713 u8 own = (u8)rtl92ce_get_desc(hw, entry, true, HW_DESC_OWN);
714
715 /*beacon packet will only use the first
716 *descriptor defautly,and the own may not
717 *be cleared by the hardware
718 */
719 if (own)
720 return false;
721 return true;
722 }
723
rtl92ce_tx_polling(struct ieee80211_hw * hw,u8 hw_queue)724 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
725 {
726 struct rtl_priv *rtlpriv = rtl_priv(hw);
727
728 if (hw_queue == BEACON_QUEUE) {
729 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
730 } else {
731 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
732 BIT(0) << (hw_queue));
733 }
734 }
735
736
