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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / realtek / rtlwifi / rtl8192ce / trx.c
blob8fc3cb824066818e6263b5f9a7596c3224fa0db2
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 = pci_map_single(rtlpci->pdev,
365 skb->data, skb->len,
366 PCI_DMA_TODEVICE);
367
368 u8 bw_40 = 0;
369
370 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
371 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
372 "DMA mapping error\n");
373 return;
374 }
375 rcu_read_lock();
376 sta = get_sta(hw, mac->vif, mac->bssid);
377 if (mac->opmode == NL80211_IFTYPE_STATION) {
378 bw_40 = mac->bw_40;
379 } else if (mac->opmode == NL80211_IFTYPE_AP ||
380 mac->opmode == NL80211_IFTYPE_ADHOC ||
381 mac->opmode == NL80211_IFTYPE_MESH_POINT) {
382 if (sta)
383 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
384 }
385
386 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
387
388 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
389
390 clear_pci_tx_desc_content(pdesc, sizeof(struct tx_desc_92c));
391
392 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
393 firstseg = true;
394 lastseg = true;
395 }
396 if (firstseg) {
397 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
398
399 set_tx_desc_tx_rate(pdesc, tcb_desc->hw_rate);
400
401 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
402 set_tx_desc_data_shortgi(pdesc, 1);
403
404 if (info->flags & IEEE80211_TX_CTL_AMPDU) {
405 set_tx_desc_agg_break(pdesc, 1);
406 set_tx_desc_max_agg_num(pdesc, 0x14);
407 }
408 set_tx_desc_seq(pdesc, seq_number);
409
410 set_tx_desc_rts_enable(pdesc, ((tcb_desc->rts_enable &&
411 !tcb_desc->
412 cts_enable) ? 1 : 0));
413 set_tx_desc_hw_rts_enable(pdesc,
414 ((tcb_desc->rts_enable
415 || tcb_desc->cts_enable) ? 1 : 0));
416 set_tx_desc_cts2self(pdesc, ((tcb_desc->cts_enable) ? 1 : 0));
417 set_tx_desc_rts_stbc(pdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
418
419 set_tx_desc_rts_rate(pdesc, tcb_desc->rts_rate);
420 set_tx_desc_rts_bw(pdesc, 0);
421 set_tx_desc_rts_sc(pdesc, tcb_desc->rts_sc);
422 set_tx_desc_rts_short(pdesc,
423 ((tcb_desc->rts_rate <= DESC_RATE54M) ?
424 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
425 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
426
427 if (bw_40) {
428 if (tcb_desc->packet_bw) {
429 set_tx_desc_data_bw(pdesc, 1);
430 set_tx_desc_tx_sub_carrier(pdesc, 3);
431 } else {
432 set_tx_desc_data_bw(pdesc, 0);
433 set_tx_desc_tx_sub_carrier(pdesc,
434 mac->cur_40_prime_sc);
435 }
436 } else {
437 set_tx_desc_data_bw(pdesc, 0);
438 set_tx_desc_tx_sub_carrier(pdesc, 0);
439 }
440
441 set_tx_desc_linip(pdesc, 0);
442 set_tx_desc_pkt_size(pdesc, (u16)skb->len);
443
444 if (sta) {
445 u8 ampdu_density = sta->ht_cap.ampdu_density;
446
447 set_tx_desc_ampdu_density(pdesc, ampdu_density);
448 }
449
450 if (info->control.hw_key) {
451 struct ieee80211_key_conf *keyconf =
452 info->control.hw_key;
453
454 switch (keyconf->cipher) {
455 case WLAN_CIPHER_SUITE_WEP40:
456 case WLAN_CIPHER_SUITE_WEP104:
457 case WLAN_CIPHER_SUITE_TKIP:
458 set_tx_desc_sec_type(pdesc, 0x1);
459 break;
460 case WLAN_CIPHER_SUITE_CCMP:
461 set_tx_desc_sec_type(pdesc, 0x3);
462 break;
463 default:
464 set_tx_desc_sec_type(pdesc, 0x0);
465 break;
466
467 }
468 }
469
470 set_tx_desc_pkt_id(pdesc, 0);
471 set_tx_desc_queue_sel(pdesc, fw_qsel);
472
473 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F);
474 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF);
475 set_tx_desc_disable_fb(pdesc, 0);
476 set_tx_desc_use_rate(pdesc, tcb_desc->use_driver_rate ? 1 : 0);
477
478 if (ieee80211_is_data_qos(fc)) {
479 if (mac->rdg_en) {
480 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
481 "Enable RDG function\n");
482 set_tx_desc_rdg_enable(pdesc, 1);
483 set_tx_desc_htc(pdesc, 1);
484 }
485 }
486 }
487 rcu_read_unlock();
488
489 set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0));
490 set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0));
491
492 set_tx_desc_tx_buffer_size(pdesc, (u16)skb->len);
493
494 set_tx_desc_tx_buffer_address(pdesc, mapping);
495
496 if (rtlpriv->dm.useramask) {
497 set_tx_desc_rate_id(pdesc, tcb_desc->ratr_index);
498 set_tx_desc_macid(pdesc, tcb_desc->mac_id);
499 } else {
500 set_tx_desc_rate_id(pdesc, 0xC + tcb_desc->ratr_index);
501 set_tx_desc_macid(pdesc, tcb_desc->ratr_index);
502 }
503
504 if ((!ieee80211_is_data_qos(fc)) && ppsc->fwctrl_lps) {
505 set_tx_desc_hwseq_en(pdesc, 1);
506 set_tx_desc_pkt_id(pdesc, 8);
507
508 if (!defaultadapter)
509 set_tx_desc_qos(pdesc, 1);
510 }
511
512 set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1));
513
514 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
515 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) {
516 set_tx_desc_bmc(pdesc, 1);
517 }
518
519 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
520 }
521
522 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw,
523 u8 *pdesc8, bool firstseg,
524 bool lastseg, struct sk_buff *skb)
525 {
526 struct rtl_priv *rtlpriv = rtl_priv(hw);
527 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
528 u8 fw_queue = QSLT_BEACON;
529 __le32 *pdesc = (__le32 *)pdesc8;
530
531 dma_addr_t mapping = pci_map_single(rtlpci->pdev,
532 skb->data, skb->len,
533 PCI_DMA_TODEVICE);
534
535 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
536 __le16 fc = hdr->frame_control;
537
538 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
539 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
540 "DMA mapping error\n");
541 return;
542 }
543 clear_pci_tx_desc_content(pdesc, TX_DESC_SIZE);
544
545 if (firstseg)
546 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN);
547
548 set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
549
550 set_tx_desc_seq(pdesc, 0);
551
552 set_tx_desc_linip(pdesc, 0);
553
554 set_tx_desc_queue_sel(pdesc, fw_queue);
555
556 set_tx_desc_first_seg(pdesc, 1);
557 set_tx_desc_last_seg(pdesc, 1);
558
559 set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len));
560
561 set_tx_desc_tx_buffer_address(pdesc, mapping);
562
563 set_tx_desc_rate_id(pdesc, 7);
564 set_tx_desc_macid(pdesc, 0);
565
566 set_tx_desc_own(pdesc, 1);
567
568 set_tx_desc_pkt_size(pdesc, (u16)(skb->len));
569
570 set_tx_desc_first_seg(pdesc, 1);
571 set_tx_desc_last_seg(pdesc, 1);
572
573 set_tx_desc_offset(pdesc, 0x20);
574
575 set_tx_desc_use_rate(pdesc, 1);
576
577 if (!ieee80211_is_data_qos(fc)) {
578 set_tx_desc_hwseq_en(pdesc, 1);
579 set_tx_desc_pkt_id(pdesc, 8);
580 }
581
582 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD,
583 "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE);
584 }
585
586 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
587 u8 desc_name, u8 *val)
588 {
589 __le32 *pdesc = (__le32 *)pdesc8;
590
591 if (istx) {
592 switch (desc_name) {
593 case HW_DESC_OWN:
594 wmb();
595 set_tx_desc_own(pdesc, 1);
596 break;
597 case HW_DESC_TX_NEXTDESC_ADDR:
598 set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
599 break;
600 default:
601 WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
602 desc_name);
603 break;
604 }
605 } else {
606 switch (desc_name) {
607 case HW_DESC_RXOWN:
608 wmb();
609 set_rx_desc_own(pdesc, 1);
610 break;
611 case HW_DESC_RXBUFF_ADDR:
612 set_rx_desc_buff_addr(pdesc, *(u32 *)val);
613 break;
614 case HW_DESC_RXPKT_LEN:
615 set_rx_desc_pkt_len(pdesc, *(u32 *)val);
616 break;
617 case HW_DESC_RXERO:
618 set_rx_desc_eor(pdesc, 1);
619 break;
620 default:
621 WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
622 desc_name);
623 break;
624 }
625 }
626 }
627
628 u64 rtl92ce_get_desc(struct ieee80211_hw *hw, u8 *p_desc8,
629 bool istx, u8 desc_name)
630 {
631 u32 ret = 0;
632 __le32 *p_desc = (__le32 *)p_desc8;
633
634 if (istx) {
635 switch (desc_name) {
636 case HW_DESC_OWN:
637 ret = get_tx_desc_own(p_desc);
638 break;
639 case HW_DESC_TXBUFF_ADDR:
640 ret = get_tx_desc_tx_buffer_address(p_desc);
641 break;
642 default:
643 WARN_ONCE(true, "rtl8192ce: ERR txdesc :%d not processed\n",
644 desc_name);
645 break;
646 }
647 } else {
648 switch (desc_name) {
649 case HW_DESC_OWN:
650 ret = get_rx_desc_own(p_desc);
651 break;
652 case HW_DESC_RXPKT_LEN:
653 ret = get_rx_desc_pkt_len(p_desc);
654 break;
655 case HW_DESC_RXBUFF_ADDR:
656 ret = get_rx_desc_buff_addr(p_desc);
657 break;
658 default:
659 WARN_ONCE(true, "rtl8192ce: ERR rxdesc :%d not processed\n",
660 desc_name);
661 break;
662 }
663 }
664 return ret;
665 }
666
667 bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
668 u8 hw_queue, u16 index)
669 {
670 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
671 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
672 u8 *entry = (u8 *)(&ring->desc[ring->idx]);
673 u8 own = (u8)rtl92ce_get_desc(hw, entry, true, HW_DESC_OWN);
674
675 /*beacon packet will only use the first
676 *descriptor defautly,and the own may not
677 *be cleared by the hardware
678 */
679 if (own)
680 return false;
681 return true;
682 }
683
684 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
685 {
686 struct rtl_priv *rtlpriv = rtl_priv(hw);
687
688 if (hw_queue == BEACON_QUEUE) {
689 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG, BIT(4));
690 } else {
691 rtl_write_word(rtlpriv, REG_PCIE_CTRL_REG,
692 BIT(0) << (hw_queue));
693 }
694 }
695
Linux with added FPC-III support