1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 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 "fw.h"
34 #include "trx.h"
35 #include "led.h"
36
_rtl92se_map_hwqueue_to_fwqueue(struct sk_buff * skb,u8 skb_queue)37 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
38 {
39 __le16 fc = rtl_get_fc(skb);
40
41 if (unlikely(ieee80211_is_beacon(fc)))
42 return QSLT_BEACON;
43 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
44 return QSLT_MGNT;
45 if (ieee80211_is_nullfunc(fc))
46 return QSLT_HIGH;
47
48 /* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
49 * queue V0 at priority 7; however, the RTL8192SE appears to have
50 * that queue at priority 6
51 */
52 if (skb->priority == 7)
53 return QSLT_VO;
54 return skb->priority;
55 }
56
_rtl92se_query_rxphystatus(struct ieee80211_hw * hw,struct rtl_stats * pstats,u8 * pdesc,struct rx_fwinfo * p_drvinfo,bool packet_match_bssid,bool packet_toself,bool packet_beacon)57 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
58 struct rtl_stats *pstats, u8 *pdesc,
59 struct rx_fwinfo *p_drvinfo,
60 bool packet_match_bssid,
61 bool packet_toself,
62 bool packet_beacon)
63 {
64 struct rtl_priv *rtlpriv = rtl_priv(hw);
65 struct phy_sts_cck_8192s_t *cck_buf;
66 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
67 s8 rx_pwr_all = 0, rx_pwr[4];
68 u8 rf_rx_num = 0, evm, pwdb_all;
69 u8 i, max_spatial_stream;
70 u32 rssi, total_rssi = 0;
71 bool is_cck = pstats->is_cck;
72
73 pstats->packet_matchbssid = packet_match_bssid;
74 pstats->packet_toself = packet_toself;
75 pstats->packet_beacon = packet_beacon;
76 pstats->rx_mimo_sig_qual[0] = -1;
77 pstats->rx_mimo_sig_qual[1] = -1;
78
79 if (is_cck) {
80 u8 report, cck_highpwr;
81 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
82
83 if (ppsc->rfpwr_state == ERFON)
84 cck_highpwr = (u8) rtl_get_bbreg(hw,
85 RFPGA0_XA_HSSIPARAMETER2,
86 0x200);
87 else
88 cck_highpwr = false;
89
90 if (!cck_highpwr) {
91 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
92 report = cck_buf->cck_agc_rpt & 0xc0;
93 report = report >> 6;
94 switch (report) {
95 case 0x3:
96 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
97 break;
98 case 0x2:
99 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
100 break;
101 case 0x1:
102 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
103 break;
104 case 0x0:
105 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
106 break;
107 }
108 } else {
109 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
110 report = p_drvinfo->cfosho[0] & 0x60;
111 report = report >> 5;
112 switch (report) {
113 case 0x3:
114 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
115 break;
116 case 0x2:
117 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
118 break;
119 case 0x1:
120 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
121 break;
122 case 0x0:
123 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
124 break;
125 }
126 }
127
128 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
129
130 /* CCK gain is smaller than OFDM/MCS gain, */
131 /* so we add gain diff by experiences, the val is 6 */
132 pwdb_all += 6;
133 if (pwdb_all > 100)
134 pwdb_all = 100;
135 /* modify the offset to make the same gain index with OFDM. */
136 if (pwdb_all > 34 && pwdb_all <= 42)
137 pwdb_all -= 2;
138 else if (pwdb_all > 26 && pwdb_all <= 34)
139 pwdb_all -= 6;
140 else if (pwdb_all > 14 && pwdb_all <= 26)
141 pwdb_all -= 8;
142 else if (pwdb_all > 4 && pwdb_all <= 14)
143 pwdb_all -= 4;
144
145 pstats->rx_pwdb_all = pwdb_all;
146 pstats->recvsignalpower = rx_pwr_all;
147
148 if (packet_match_bssid) {
149 u8 sq;
150 if (pstats->rx_pwdb_all > 40) {
151 sq = 100;
152 } else {
153 sq = cck_buf->sq_rpt;
154 if (sq > 64)
155 sq = 0;
156 else if (sq < 20)
157 sq = 100;
158 else
159 sq = ((64 - sq) * 100) / 44;
160 }
161
162 pstats->signalquality = sq;
163 pstats->rx_mimo_sig_qual[0] = sq;
164 pstats->rx_mimo_sig_qual[1] = -1;
165 }
166 } else {
167 rtlpriv->dm.rfpath_rxenable[0] =
168 rtlpriv->dm.rfpath_rxenable[1] = true;
169 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
170 if (rtlpriv->dm.rfpath_rxenable[i])
171 rf_rx_num++;
172
173 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
174 0x3f) * 2) - 110;
175 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
176 total_rssi += rssi;
177 rtlpriv->stats.rx_snr_db[i] =
178 (long)(p_drvinfo->rxsnr[i] / 2);
179
180 if (packet_match_bssid)
181 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
182 }
183
184 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
185 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
186 pstats->rx_pwdb_all = pwdb_all;
187 pstats->rxpower = rx_pwr_all;
188 pstats->recvsignalpower = rx_pwr_all;
189
190 if (pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
191 pstats->rate <= DESC_RATEMCS15)
192 max_spatial_stream = 2;
193 else
194 max_spatial_stream = 1;
195
196 for (i = 0; i < max_spatial_stream; i++) {
197 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
198
199 if (packet_match_bssid) {
200 if (i == 0)
201 pstats->signalquality = (u8)(evm &
202 0xff);
203 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
204 }
205 }
206 }
207
208 if (is_cck)
209 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
210 pwdb_all));
211 else if (rf_rx_num != 0)
212 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
213 total_rssi /= rf_rx_num));
214 }
215
_rtl92se_translate_rx_signal_stuff(struct ieee80211_hw * hw,struct sk_buff * skb,struct rtl_stats * pstats,u8 * pdesc,struct rx_fwinfo * p_drvinfo)216 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
217 struct sk_buff *skb, struct rtl_stats *pstats,
218 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
219 {
220 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
221 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
222
223 struct ieee80211_hdr *hdr;
224 u8 *tmp_buf;
225 u8 *praddr;
226 __le16 fc;
227 u16 type, cfc;
228 bool packet_matchbssid, packet_toself, packet_beacon = false;
229
230 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
231
232 hdr = (struct ieee80211_hdr *)tmp_buf;
233 fc = hdr->frame_control;
234 cfc = le16_to_cpu(fc);
235 type = WLAN_FC_GET_TYPE(fc);
236 praddr = hdr->addr1;
237
238 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
239 ether_addr_equal(mac->bssid,
240 (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
241 (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
242 hdr->addr3) &&
243 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
244
245 packet_toself = packet_matchbssid &&
246 ether_addr_equal(praddr, rtlefuse->dev_addr);
247
248 if (ieee80211_is_beacon(fc))
249 packet_beacon = true;
250
251 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
252 packet_matchbssid, packet_toself, packet_beacon);
253 rtl_process_phyinfo(hw, tmp_buf, pstats);
254 }
255
rtl92se_rx_query_desc(struct ieee80211_hw * hw,struct rtl_stats * stats,struct ieee80211_rx_status * rx_status,u8 * pdesc,struct sk_buff * skb)256 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
257 struct ieee80211_rx_status *rx_status, u8 *pdesc,
258 struct sk_buff *skb)
259 {
260 struct rx_fwinfo *p_drvinfo;
261 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
262 struct ieee80211_hdr *hdr;
263
264 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
265 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
266 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
267 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
268 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
269 stats->hwerror = (u16)(stats->crc | stats->icv);
270 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
271
272 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
273 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
274 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
275 stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
276 && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
277 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
278 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
279 stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
280 stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
281
282 if (stats->hwerror)
283 return false;
284
285 rx_status->freq = hw->conf.chandef.chan->center_freq;
286 rx_status->band = hw->conf.chandef.chan->band;
287
288 if (stats->crc)
289 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
290
291 if (stats->rx_is40Mhzpacket)
292 rx_status->bw = RATE_INFO_BW_40;
293
294 if (stats->is_ht)
295 rx_status->encoding = RX_ENC_HT;
296
297 rx_status->flag |= RX_FLAG_MACTIME_START;
298
299 /* hw will set stats->decrypted true, if it finds the
300 * frame is open data frame or mgmt frame,
301 * hw will not decrypt robust managment frame
302 * for IEEE80211w but still set stats->decrypted
303 * true, so here we should set it back to undecrypted
304 * for IEEE80211w frame, and mac80211 sw will help
305 * to decrypt it */
306 if (stats->decrypted) {
307 hdr = (struct ieee80211_hdr *)(skb->data +
308 stats->rx_drvinfo_size + stats->rx_bufshift);
309
310 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
311 (ieee80211_has_protected(hdr->frame_control)))
312 rx_status->flag &= ~RX_FLAG_DECRYPTED;
313 else
314 rx_status->flag |= RX_FLAG_DECRYPTED;
315 }
316
317 rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
318 false, stats->rate);
319
320 rx_status->mactime = stats->timestamp_low;
321 if (phystatus) {
322 p_drvinfo = (struct rx_fwinfo *)(skb->data +
323 stats->rx_bufshift);
324 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
325 p_drvinfo);
326 }
327
328 /*rx_status->qual = stats->signal; */
329 rx_status->signal = stats->recvsignalpower + 10;
330
331 return true;
332 }
333
rtl92se_tx_fill_desc(struct ieee80211_hw * hw,struct ieee80211_hdr * hdr,u8 * pdesc_tx,u8 * pbd_desc_tx,struct ieee80211_tx_info * info,struct ieee80211_sta * sta,struct sk_buff * skb,u8 hw_queue,struct rtl_tcb_desc * ptcb_desc)334 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
335 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
336 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
337 struct ieee80211_sta *sta,
338 struct sk_buff *skb,
339 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
340 {
341 struct rtl_priv *rtlpriv = rtl_priv(hw);
342 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
343 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
344 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
345 u8 *pdesc = pdesc_tx;
346 u16 seq_number;
347 __le16 fc = hdr->frame_control;
348 u8 reserved_macid = 0;
349 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
350 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
351 bool lastseg = (!(hdr->frame_control &
352 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
353 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
354 PCI_DMA_TODEVICE);
355 u8 bw_40 = 0;
356
357 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
358 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
359 "DMA mapping error\n");
360 return;
361 }
362 if (mac->opmode == NL80211_IFTYPE_STATION) {
363 bw_40 = mac->bw_40;
364 } else if (mac->opmode == NL80211_IFTYPE_AP ||
365 mac->opmode == NL80211_IFTYPE_ADHOC) {
366 if (sta)
367 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
368 }
369
370 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
371
372 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
373
374 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
375
376 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
377 firstseg = true;
378 lastseg = true;
379 }
380
381 if (firstseg) {
382 if (rtlpriv->dm.useramask) {
383 /* set txdesc macId */
384 if (ptcb_desc->mac_id < 32) {
385 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
386 reserved_macid |= ptcb_desc->mac_id;
387 }
388 }
389 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
390
391 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
392 DESC_RATEMCS0) ? 1 : 0));
393
394 if (rtlhal->version == VERSION_8192S_ACUT) {
395 if (ptcb_desc->hw_rate == DESC_RATE1M ||
396 ptcb_desc->hw_rate == DESC_RATE2M ||
397 ptcb_desc->hw_rate == DESC_RATE5_5M ||
398 ptcb_desc->hw_rate == DESC_RATE11M) {
399 ptcb_desc->hw_rate = DESC_RATE12M;
400 }
401 }
402
403 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
404
405 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
406 SET_TX_DESC_TX_SHORT(pdesc, 0);
407
408 /* Aggregation related */
409 if (info->flags & IEEE80211_TX_CTL_AMPDU)
410 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
411
412 /* For AMPDU, we must insert SSN into TX_DESC */
413 SET_TX_DESC_SEQ(pdesc, seq_number);
414
415 /* Protection mode related */
416 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
417 /* We choose only one protection mode to execute */
418 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
419 !ptcb_desc->cts_enable) ? 1 : 0));
420 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
421 1 : 0));
422 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
423
424 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
425 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
426 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
427 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
428 DESC_RATE54M) ?
429 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
430 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
431
432
433 /* Set Bandwidth and sub-channel settings. */
434 if (bw_40) {
435 if (ptcb_desc->packet_bw) {
436 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
437 /* use duplicated mode */
438 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
439 } else {
440 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
441 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
442 mac->cur_40_prime_sc);
443 }
444 } else {
445 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
446 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
447 }
448
449 /* 3 Fill necessary field in First Descriptor */
450 /*DWORD 0*/
451 SET_TX_DESC_LINIP(pdesc, 0);
452 SET_TX_DESC_OFFSET(pdesc, 32);
453 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
454
455 /*DWORD 1*/
456 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
457
458 /* Fill security related */
459 if (info->control.hw_key) {
460 struct ieee80211_key_conf *keyconf;
461
462 keyconf = info->control.hw_key;
463 switch (keyconf->cipher) {
464 case WLAN_CIPHER_SUITE_WEP40:
465 case WLAN_CIPHER_SUITE_WEP104:
466 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
467 break;
468 case WLAN_CIPHER_SUITE_TKIP:
469 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
470 break;
471 case WLAN_CIPHER_SUITE_CCMP:
472 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
473 break;
474 default:
475 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
476 break;
477
478 }
479 }
480
481 /* Set Packet ID */
482 SET_TX_DESC_PACKET_ID(pdesc, 0);
483
484 /* We will assign magement queue to BK. */
485 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
486
487 /* Alwasy enable all rate fallback range */
488 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
489
490 /* Fix: I don't kown why hw use 6.5M to tx when set it */
491 SET_TX_DESC_USER_RATE(pdesc,
492 ptcb_desc->use_driver_rate ? 1 : 0);
493
494 /* Set NON_QOS bit. */
495 if (!ieee80211_is_data_qos(fc))
496 SET_TX_DESC_NON_QOS(pdesc, 1);
497
498 }
499
500 /* Fill fields that are required to be initialized
501 * in all of the descriptors */
502 /*DWORD 0 */
503 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
504 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
505
506 /* DWORD 7 */
507 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
508
509 /* DOWRD 8 */
510 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
511
512 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
513 }
514
rtl92se_tx_fill_cmddesc(struct ieee80211_hw * hw,u8 * pdesc,bool firstseg,bool lastseg,struct sk_buff * skb)515 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
516 bool firstseg, bool lastseg, struct sk_buff *skb)
517 {
518 struct rtl_priv *rtlpriv = rtl_priv(hw);
519 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
520 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
521 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
522
523 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
524 PCI_DMA_TODEVICE);
525
526 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
527 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
528 "DMA mapping error\n");
529 return;
530 }
531 /* Clear all status */
532 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
533
534 /* This bit indicate this packet is used for FW download. */
535 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
536 /* For firmware downlaod we only need to set LINIP */
537 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
538
539 /* 92SE must set as 1 for firmware download HW DMA error */
540 SET_TX_DESC_FIRST_SEG(pdesc, 1);
541 SET_TX_DESC_LAST_SEG(pdesc, 1);
542
543 /* 92SE need not to set TX packet size when firmware download */
544 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
545 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
546 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
547
548 wmb();
549 SET_TX_DESC_OWN(pdesc, 1);
550 } else { /* H2C Command Desc format (Host TXCMD) */
551 /* 92SE must set as 1 for firmware download HW DMA error */
552 SET_TX_DESC_FIRST_SEG(pdesc, 1);
553 SET_TX_DESC_LAST_SEG(pdesc, 1);
554
555 SET_TX_DESC_OFFSET(pdesc, 0x20);
556
557 /* Buffer size + command header */
558 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
559 /* Fixed queue of H2C command */
560 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
561
562 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
563
564 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
565 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
566
567 wmb();
568 SET_TX_DESC_OWN(pdesc, 1);
569
570 }
571 }
572
rtl92se_set_desc(struct ieee80211_hw * hw,u8 * pdesc,bool istx,u8 desc_name,u8 * val)573 void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
574 u8 desc_name, u8 *val)
575 {
576 if (istx) {
577 switch (desc_name) {
578 case HW_DESC_OWN:
579 wmb();
580 SET_TX_DESC_OWN(pdesc, 1);
581 break;
582 case HW_DESC_TX_NEXTDESC_ADDR:
583 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
584 break;
585 default:
586 WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
587 desc_name);
588 break;
589 }
590 } else {
591 switch (desc_name) {
592 case HW_DESC_RXOWN:
593 wmb();
594 SET_RX_STATUS_DESC_OWN(pdesc, 1);
595 break;
596 case HW_DESC_RXBUFF_ADDR:
597 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
598 break;
599 case HW_DESC_RXPKT_LEN:
600 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
601 break;
602 case HW_DESC_RXERO:
603 SET_RX_STATUS_DESC_EOR(pdesc, 1);
604 break;
605 default:
606 WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
607 desc_name);
608 break;
609 }
610 }
611 }
612
rtl92se_get_desc(u8 * desc,bool istx,u8 desc_name)613 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
614 {
615 u32 ret = 0;
616
617 if (istx) {
618 switch (desc_name) {
619 case HW_DESC_OWN:
620 ret = GET_TX_DESC_OWN(desc);
621 break;
622 case HW_DESC_TXBUFF_ADDR:
623 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
624 break;
625 default:
626 WARN_ONCE(true, "rtl8192se: ERR txdesc :%d not processed\n",
627 desc_name);
628 break;
629 }
630 } else {
631 switch (desc_name) {
632 case HW_DESC_OWN:
633 ret = GET_RX_STATUS_DESC_OWN(desc);
634 break;
635 case HW_DESC_RXPKT_LEN:
636 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
637 break;
638 case HW_DESC_RXBUFF_ADDR:
639 ret = GET_RX_STATUS_DESC_BUFF_ADDR(desc);
640 break;
641 default:
642 WARN_ONCE(true, "rtl8192se: ERR rxdesc :%d not processed\n",
643 desc_name);
644 break;
645 }
646 }
647 return ret;
648 }
649
rtl92se_tx_polling(struct ieee80211_hw * hw,u8 hw_queue)650 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
651 {
652 struct rtl_priv *rtlpriv = rtl_priv(hw);
653 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
654 }
655