1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012 Realtek Corporation.*/
3
4 #include "../wifi.h"
5 #include "../base.h"
6 #include "../stats.h"
7 #include "def.h"
8 #include "trx_common.h"
9
_rtl92d_translate_todbm(struct ieee80211_hw * hw,u8 signal_strength_index)10 static long _rtl92d_translate_todbm(struct ieee80211_hw *hw,
11 u8 signal_strength_index)
12 {
13 long signal_power;
14
15 signal_power = (long)((signal_strength_index + 1) >> 1);
16 signal_power -= 95;
17 return signal_power;
18 }
19
_rtl92d_query_rxphystatus(struct ieee80211_hw * hw,struct rtl_stats * pstats,__le32 * pdesc,struct rx_fwinfo_92d * p_drvinfo,bool packet_match_bssid,bool packet_toself,bool packet_beacon)20 static void _rtl92d_query_rxphystatus(struct ieee80211_hw *hw,
21 struct rtl_stats *pstats,
22 __le32 *pdesc,
23 struct rx_fwinfo_92d *p_drvinfo,
24 bool packet_match_bssid,
25 bool packet_toself,
26 bool packet_beacon)
27 {
28 struct rtl_priv *rtlpriv = rtl_priv(hw);
29 struct rtl_phy *rtlphy = &rtlpriv->phy;
30 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
31 struct phy_sts_cck_8192d *cck_buf;
32 s8 rx_pwr_all, rx_pwr[4];
33 u8 rf_rx_num = 0, evm, pwdb_all;
34 u8 i, max_spatial_stream;
35 u32 rssi, total_rssi = 0;
36 bool is_cck_rate;
37 u8 rxmcs;
38
39 rxmcs = get_rx_desc_rxmcs(pdesc);
40 is_cck_rate = rxmcs <= DESC_RATE11M;
41 pstats->packet_matchbssid = packet_match_bssid;
42 pstats->packet_toself = packet_toself;
43 pstats->packet_beacon = packet_beacon;
44 pstats->is_cck = is_cck_rate;
45 pstats->rx_mimo_sig_qual[0] = -1;
46 pstats->rx_mimo_sig_qual[1] = -1;
47
48 if (is_cck_rate) {
49 u8 report, cck_highpwr;
50
51 cck_buf = (struct phy_sts_cck_8192d *)p_drvinfo;
52 if (ppsc->rfpwr_state == ERFON)
53 cck_highpwr = rtlphy->cck_high_power;
54 else
55 cck_highpwr = false;
56 if (!cck_highpwr) {
57 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
58
59 report = cck_buf->cck_agc_rpt & 0xc0;
60 report = report >> 6;
61 switch (report) {
62 case 0x3:
63 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
64 break;
65 case 0x2:
66 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
67 break;
68 case 0x1:
69 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
70 break;
71 case 0x0:
72 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
73 break;
74 }
75 } else {
76 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
77
78 report = p_drvinfo->cfosho[0] & 0x60;
79 report = report >> 5;
80 switch (report) {
81 case 0x3:
82 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
83 break;
84 case 0x2:
85 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
86 break;
87 case 0x1:
88 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
89 break;
90 case 0x0:
91 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
92 break;
93 }
94 }
95 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
96 /* CCK gain is smaller than OFDM/MCS gain, */
97 /* so we add gain diff by experiences, the val is 6 */
98 pwdb_all += 6;
99 if (pwdb_all > 100)
100 pwdb_all = 100;
101 /* modify the offset to make the same gain index with OFDM. */
102 if (pwdb_all > 34 && pwdb_all <= 42)
103 pwdb_all -= 2;
104 else if (pwdb_all > 26 && pwdb_all <= 34)
105 pwdb_all -= 6;
106 else if (pwdb_all > 14 && pwdb_all <= 26)
107 pwdb_all -= 8;
108 else if (pwdb_all > 4 && pwdb_all <= 14)
109 pwdb_all -= 4;
110 pstats->rx_pwdb_all = pwdb_all;
111 pstats->recvsignalpower = rx_pwr_all;
112 if (packet_match_bssid) {
113 u8 sq;
114
115 if (pstats->rx_pwdb_all > 40) {
116 sq = 100;
117 } else {
118 sq = cck_buf->sq_rpt;
119 if (sq > 64)
120 sq = 0;
121 else if (sq < 20)
122 sq = 100;
123 else
124 sq = ((64 - sq) * 100) / 44;
125 }
126 pstats->signalquality = sq;
127 pstats->rx_mimo_sig_qual[0] = sq;
128 pstats->rx_mimo_sig_qual[1] = -1;
129 }
130 } else {
131 rtlpriv->dm.rfpath_rxenable[0] = true;
132 rtlpriv->dm.rfpath_rxenable[1] = true;
133 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
134 if (rtlpriv->dm.rfpath_rxenable[i])
135 rf_rx_num++;
136 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2)
137 - 110;
138 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
139 total_rssi += rssi;
140 rtlpriv->stats.rx_snr_db[i] =
141 (long)(p_drvinfo->rxsnr[i] / 2);
142 if (packet_match_bssid)
143 pstats->rx_mimo_signalstrength[i] = (u8)rssi;
144 }
145 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 106;
146 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
147 pstats->rx_pwdb_all = pwdb_all;
148 pstats->rxpower = rx_pwr_all;
149 pstats->recvsignalpower = rx_pwr_all;
150 if (get_rx_desc_rxht(pdesc) && rxmcs >= DESC_RATEMCS8 &&
151 rxmcs <= DESC_RATEMCS15)
152 max_spatial_stream = 2;
153 else
154 max_spatial_stream = 1;
155 for (i = 0; i < max_spatial_stream; i++) {
156 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
157 if (packet_match_bssid) {
158 if (i == 0)
159 pstats->signalquality =
160 (u8)(evm & 0xff);
161 pstats->rx_mimo_sig_qual[i] =
162 (u8)(evm & 0xff);
163 }
164 }
165 }
166 if (is_cck_rate)
167 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
168 pwdb_all));
169 else if (rf_rx_num != 0)
170 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
171 total_rssi /= rf_rx_num));
172 }
173
rtl92d_loop_over_paths(struct ieee80211_hw * hw,struct rtl_stats * pstats)174 static void rtl92d_loop_over_paths(struct ieee80211_hw *hw,
175 struct rtl_stats *pstats)
176 {
177 struct rtl_priv *rtlpriv = rtl_priv(hw);
178 struct rtl_phy *rtlphy = &rtlpriv->phy;
179 u8 rfpath;
180
181 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
182 rfpath++) {
183 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
184 rtlpriv->stats.rx_rssi_percentage[rfpath] =
185 pstats->rx_mimo_signalstrength[rfpath];
186 }
187 if (pstats->rx_mimo_signalstrength[rfpath] >
188 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
189 rtlpriv->stats.rx_rssi_percentage[rfpath] =
190 ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
191 (RX_SMOOTH_FACTOR - 1)) +
192 (pstats->rx_mimo_signalstrength[rfpath])) /
193 (RX_SMOOTH_FACTOR);
194 rtlpriv->stats.rx_rssi_percentage[rfpath] =
195 rtlpriv->stats.rx_rssi_percentage[rfpath] + 1;
196 } else {
197 rtlpriv->stats.rx_rssi_percentage[rfpath] =
198 ((rtlpriv->stats.rx_rssi_percentage[rfpath] *
199 (RX_SMOOTH_FACTOR - 1)) +
200 (pstats->rx_mimo_signalstrength[rfpath])) /
201 (RX_SMOOTH_FACTOR);
202 }
203 }
204 }
205
_rtl92d_process_ui_rssi(struct ieee80211_hw * hw,struct rtl_stats * pstats)206 static void _rtl92d_process_ui_rssi(struct ieee80211_hw *hw,
207 struct rtl_stats *pstats)
208 {
209 struct rtl_priv *rtlpriv = rtl_priv(hw);
210 struct rt_smooth_data *ui_rssi;
211 u32 last_rssi, tmpval;
212
213 if (!pstats->packet_toself && !pstats->packet_beacon)
214 return;
215
216 ui_rssi = &rtlpriv->stats.ui_rssi;
217
218 rtlpriv->stats.rssi_calculate_cnt++;
219 if (ui_rssi->total_num++ >= PHY_RSSI_SLID_WIN_MAX) {
220 ui_rssi->total_num = PHY_RSSI_SLID_WIN_MAX;
221 last_rssi = ui_rssi->elements[ui_rssi->index];
222 ui_rssi->total_val -= last_rssi;
223 }
224 ui_rssi->total_val += pstats->signalstrength;
225 ui_rssi->elements[ui_rssi->index++] = pstats->signalstrength;
226 if (ui_rssi->index >= PHY_RSSI_SLID_WIN_MAX)
227 ui_rssi->index = 0;
228 tmpval = ui_rssi->total_val / ui_rssi->total_num;
229 rtlpriv->stats.signal_strength = _rtl92d_translate_todbm(hw, (u8)tmpval);
230 pstats->rssi = rtlpriv->stats.signal_strength;
231
232 if (!pstats->is_cck && pstats->packet_toself)
233 rtl92d_loop_over_paths(hw, pstats);
234 }
235
_rtl92d_update_rxsignalstatistics(struct ieee80211_hw * hw,struct rtl_stats * pstats)236 static void _rtl92d_update_rxsignalstatistics(struct ieee80211_hw *hw,
237 struct rtl_stats *pstats)
238 {
239 struct rtl_priv *rtlpriv = rtl_priv(hw);
240 int weighting = 0;
241
242 if (rtlpriv->stats.recv_signal_power == 0)
243 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
244 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
245 weighting = 5;
246 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
247 weighting = (-5);
248 rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power *
249 5 + pstats->recvsignalpower + weighting) / 6;
250 }
251
_rtl92d_process_pwdb(struct ieee80211_hw * hw,struct rtl_stats * pstats)252 static void _rtl92d_process_pwdb(struct ieee80211_hw *hw,
253 struct rtl_stats *pstats)
254 {
255 struct rtl_priv *rtlpriv = rtl_priv(hw);
256 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
257 long undec_sm_pwdb;
258
259 if (mac->opmode == NL80211_IFTYPE_ADHOC ||
260 mac->opmode == NL80211_IFTYPE_AP)
261 return;
262
263 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
264
265 if (pstats->packet_toself || pstats->packet_beacon) {
266 if (undec_sm_pwdb < 0)
267 undec_sm_pwdb = pstats->rx_pwdb_all;
268 if (pstats->rx_pwdb_all > (u32)undec_sm_pwdb) {
269 undec_sm_pwdb = (((undec_sm_pwdb) *
270 (RX_SMOOTH_FACTOR - 1)) +
271 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
272 undec_sm_pwdb = undec_sm_pwdb + 1;
273 } else {
274 undec_sm_pwdb = (((undec_sm_pwdb) *
275 (RX_SMOOTH_FACTOR - 1)) +
276 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
277 }
278 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
279 _rtl92d_update_rxsignalstatistics(hw, pstats);
280 }
281 }
282
rtl92d_loop_over_streams(struct ieee80211_hw * hw,struct rtl_stats * pstats)283 static void rtl92d_loop_over_streams(struct ieee80211_hw *hw,
284 struct rtl_stats *pstats)
285 {
286 struct rtl_priv *rtlpriv = rtl_priv(hw);
287 int stream;
288
289 for (stream = 0; stream < 2; stream++) {
290 if (pstats->rx_mimo_sig_qual[stream] != -1) {
291 if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
292 rtlpriv->stats.rx_evm_percentage[stream] =
293 pstats->rx_mimo_sig_qual[stream];
294 }
295 rtlpriv->stats.rx_evm_percentage[stream] =
296 ((rtlpriv->stats.rx_evm_percentage[stream]
297 * (RX_SMOOTH_FACTOR - 1)) +
298 (pstats->rx_mimo_sig_qual[stream] * 1)) /
299 (RX_SMOOTH_FACTOR);
300 }
301 }
302 }
303
_rtl92d_process_ui_link_quality(struct ieee80211_hw * hw,struct rtl_stats * pstats)304 static void _rtl92d_process_ui_link_quality(struct ieee80211_hw *hw,
305 struct rtl_stats *pstats)
306 {
307 struct rtl_priv *rtlpriv = rtl_priv(hw);
308 struct rt_smooth_data *ui_link_quality;
309 u32 last_evm, tmpval;
310
311 if (pstats->signalquality == 0)
312 return;
313 if (!pstats->packet_toself && !pstats->packet_beacon)
314 return;
315
316 ui_link_quality = &rtlpriv->stats.ui_link_quality;
317
318 if (ui_link_quality->total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX) {
319 ui_link_quality->total_num = PHY_LINKQUALITY_SLID_WIN_MAX;
320 last_evm = ui_link_quality->elements[ui_link_quality->index];
321 ui_link_quality->total_val -= last_evm;
322 }
323 ui_link_quality->total_val += pstats->signalquality;
324 ui_link_quality->elements[ui_link_quality->index++] = pstats->signalquality;
325 if (ui_link_quality->index >= PHY_LINKQUALITY_SLID_WIN_MAX)
326 ui_link_quality->index = 0;
327 tmpval = ui_link_quality->total_val / ui_link_quality->total_num;
328 rtlpriv->stats.signal_quality = tmpval;
329 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
330 rtl92d_loop_over_streams(hw, pstats);
331 }
332
_rtl92d_process_phyinfo(struct ieee80211_hw * hw,u8 * buffer,struct rtl_stats * pcurrent_stats)333 static void _rtl92d_process_phyinfo(struct ieee80211_hw *hw,
334 u8 *buffer,
335 struct rtl_stats *pcurrent_stats)
336 {
337 if (!pcurrent_stats->packet_matchbssid &&
338 !pcurrent_stats->packet_beacon)
339 return;
340
341 _rtl92d_process_ui_rssi(hw, pcurrent_stats);
342 _rtl92d_process_pwdb(hw, pcurrent_stats);
343 _rtl92d_process_ui_link_quality(hw, pcurrent_stats);
344 }
345
_rtl92d_translate_rx_signal_stuff(struct ieee80211_hw * hw,struct sk_buff * skb,struct rtl_stats * pstats,__le32 * pdesc,struct rx_fwinfo_92d * p_drvinfo)346 static void _rtl92d_translate_rx_signal_stuff(struct ieee80211_hw *hw,
347 struct sk_buff *skb,
348 struct rtl_stats *pstats,
349 __le32 *pdesc,
350 struct rx_fwinfo_92d *p_drvinfo)
351 {
352 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
353 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
354 struct ieee80211_hdr *hdr;
355 bool packet_matchbssid;
356 bool packet_beacon;
357 bool packet_toself;
358 u16 type, cfc;
359 u8 *tmp_buf;
360 u8 *praddr;
361 __le16 fc;
362
363 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
364 hdr = (struct ieee80211_hdr *)tmp_buf;
365 fc = hdr->frame_control;
366 cfc = le16_to_cpu(fc);
367 type = WLAN_FC_GET_TYPE(fc);
368 praddr = hdr->addr1;
369 packet_matchbssid = ((type != IEEE80211_FTYPE_CTL) &&
370 ether_addr_equal(mac->bssid,
371 (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
372 (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
373 hdr->addr3) &&
374 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
375 packet_toself = packet_matchbssid &&
376 ether_addr_equal(praddr, rtlefuse->dev_addr);
377 packet_beacon = ieee80211_is_beacon(fc);
378 _rtl92d_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
379 packet_matchbssid, packet_toself,
380 packet_beacon);
381 _rtl92d_process_phyinfo(hw, tmp_buf, pstats);
382 }
383
rtl92d_rx_query_desc(struct ieee80211_hw * hw,struct rtl_stats * stats,struct ieee80211_rx_status * rx_status,u8 * pdesc8,struct sk_buff * skb)384 bool rtl92d_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
385 struct ieee80211_rx_status *rx_status,
386 u8 *pdesc8, struct sk_buff *skb)
387 {
388 __le32 *pdesc = (__le32 *)pdesc8;
389 struct rx_fwinfo_92d *p_drvinfo;
390 u32 phystatus = get_rx_desc_physt(pdesc);
391
392 stats->length = (u16)get_rx_desc_pkt_len(pdesc);
393 stats->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) *
394 RX_DRV_INFO_SIZE_UNIT;
395 stats->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
396 stats->icv = (u16)get_rx_desc_icv(pdesc);
397 stats->crc = (u16)get_rx_desc_crc32(pdesc);
398 stats->hwerror = (stats->crc | stats->icv);
399 stats->decrypted = !get_rx_desc_swdec(pdesc) &&
400 get_rx_desc_enc_type(pdesc) != RX_DESC_ENC_NONE;
401 stats->rate = (u8)get_rx_desc_rxmcs(pdesc);
402 stats->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
403 stats->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
404 stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(pdesc) == 1) &&
405 (get_rx_desc_faggr(pdesc) == 1));
406 stats->timestamp_low = get_rx_desc_tsfl(pdesc);
407 stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(pdesc);
408 stats->is_ht = (bool)get_rx_desc_rxht(pdesc);
409 rx_status->freq = hw->conf.chandef.chan->center_freq;
410 rx_status->band = hw->conf.chandef.chan->band;
411 if (get_rx_desc_crc32(pdesc))
412 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
413 if (get_rx_desc_bw(pdesc))
414 rx_status->bw = RATE_INFO_BW_40;
415 if (get_rx_desc_rxht(pdesc))
416 rx_status->encoding = RX_ENC_HT;
417 rx_status->flag |= RX_FLAG_MACTIME_START;
418 if (stats->decrypted)
419 rx_status->flag |= RX_FLAG_DECRYPTED;
420 rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
421 false, stats->rate);
422 rx_status->mactime = get_rx_desc_tsfl(pdesc);
423 if (phystatus) {
424 p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
425 stats->rx_bufshift);
426 _rtl92d_translate_rx_signal_stuff(hw, skb, stats, pdesc,
427 p_drvinfo);
428 }
429 /*rx_status->qual = stats->signal; */
430 rx_status->signal = stats->recvsignalpower + 10;
431 return true;
432 }
433 EXPORT_SYMBOL_GPL(rtl92d_rx_query_desc);
434
rtl92d_set_desc(struct ieee80211_hw * hw,u8 * pdesc8,bool istx,u8 desc_name,u8 * val)435 void rtl92d_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
436 u8 desc_name, u8 *val)
437 {
438 __le32 *pdesc = (__le32 *)pdesc8;
439
440 if (istx) {
441 switch (desc_name) {
442 case HW_DESC_OWN:
443 wmb();
444 set_tx_desc_own(pdesc, 1);
445 break;
446 case HW_DESC_TX_NEXTDESC_ADDR:
447 set_tx_desc_next_desc_address(pdesc, *(u32 *)val);
448 break;
449 default:
450 WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
451 desc_name);
452 break;
453 }
454 } else {
455 switch (desc_name) {
456 case HW_DESC_RXOWN:
457 wmb();
458 set_rx_desc_own(pdesc, 1);
459 break;
460 case HW_DESC_RXBUFF_ADDR:
461 set_rx_desc_buff_addr(pdesc, *(u32 *)val);
462 break;
463 case HW_DESC_RXPKT_LEN:
464 set_rx_desc_pkt_len(pdesc, *(u32 *)val);
465 break;
466 case HW_DESC_RXERO:
467 set_rx_desc_eor(pdesc, 1);
468 break;
469 default:
470 WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
471 desc_name);
472 break;
473 }
474 }
475 }
476 EXPORT_SYMBOL_GPL(rtl92d_set_desc);
477
rtl92d_get_desc(struct ieee80211_hw * hw,u8 * p_desc8,bool istx,u8 desc_name)478 u64 rtl92d_get_desc(struct ieee80211_hw *hw,
479 u8 *p_desc8, bool istx, u8 desc_name)
480 {
481 __le32 *p_desc = (__le32 *)p_desc8;
482 u32 ret = 0;
483
484 if (istx) {
485 switch (desc_name) {
486 case HW_DESC_OWN:
487 ret = get_tx_desc_own(p_desc);
488 break;
489 case HW_DESC_TXBUFF_ADDR:
490 ret = get_tx_desc_tx_buffer_address(p_desc);
491 break;
492 default:
493 WARN_ONCE(true, "rtl8192de: ERR txdesc :%d not processed\n",
494 desc_name);
495 break;
496 }
497 } else {
498 switch (desc_name) {
499 case HW_DESC_OWN:
500 ret = get_rx_desc_own(p_desc);
501 break;
502 case HW_DESC_RXPKT_LEN:
503 ret = get_rx_desc_pkt_len(p_desc);
504 break;
505 case HW_DESC_RXBUFF_ADDR:
506 ret = get_rx_desc_buff_addr(p_desc);
507 break;
508 default:
509 WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",
510 desc_name);
511 break;
512 }
513 }
514 return ret;
515 }
516 EXPORT_SYMBOL_GPL(rtl92d_get_desc);
517