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rtlwifi: Combine instances of RTL_HAL_IS_CCK_RATE macros.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / rtlwifi / rtl8192se / trx.c
blobba137da082b5a223e86e073f93e8cc1cff319243
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2010 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 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
25 *
26 * Larry Finger <Larry.Finger@lwfinger.net>
27 *
28 *****************************************************************************/
29
30 #include "../wifi.h"
31 #include "../pci.h"
32 #include "../base.h"
33 #include "reg.h"
34 #include "def.h"
35 #include "phy.h"
36 #include "fw.h"
37 #include "trx.h"
38 #include "led.h"
39
40 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
41 {
42 __le16 fc = rtl_get_fc(skb);
43
44 if (unlikely(ieee80211_is_beacon(fc)))
45 return QSLT_BEACON;
46 if (ieee80211_is_mgmt(fc))
47 return QSLT_MGNT;
48 if (ieee80211_is_nullfunc(fc))
49 return QSLT_HIGH;
50
51 return skb->priority;
52 }
53
54 static u8 _rtl92s_query_rxpwrpercentage(char antpower)
55 {
56 if ((antpower <= -100) || (antpower >= 20))
57 return 0;
58 else if (antpower >= 0)
59 return 100;
60 else
61 return 100 + antpower;
62 }
63
64 static u8 _rtl92s_evm_db_to_percentage(char value)
65 {
66 char ret_val;
67 ret_val = value;
68
69 if (ret_val >= 0)
70 ret_val = 0;
71
72 if (ret_val <= -33)
73 ret_val = -33;
74
75 ret_val = 0 - ret_val;
76 ret_val *= 3;
77
78 if (ret_val == 99)
79 ret_val = 100;
80
81 return ret_val;
82 }
83
84 static long _rtl92se_translate_todbm(struct ieee80211_hw *hw,
85 u8 signal_strength_index)
86 {
87 long signal_power;
88
89 signal_power = (long)((signal_strength_index + 1) >> 1);
90 signal_power -= 95;
91 return signal_power;
92 }
93
94 static long _rtl92se_signal_scale_mapping(struct ieee80211_hw *hw,
95 long currsig)
96 {
97 long retsig = 0;
98
99 /* Step 1. Scale mapping. */
100 if (currsig > 47)
101 retsig = 100;
102 else if (currsig > 14 && currsig <= 47)
103 retsig = 100 - ((47 - currsig) * 3) / 2;
104 else if (currsig > 2 && currsig <= 14)
105 retsig = 48 - ((14 - currsig) * 15) / 7;
106 else if (currsig >= 0)
107 retsig = currsig * 9 + 1;
108
109 return retsig;
110 }
111
112
113 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
114 struct rtl_stats *pstats, u8 *pdesc,
115 struct rx_fwinfo *p_drvinfo,
116 bool packet_match_bssid,
117 bool packet_toself,
118 bool packet_beacon)
119 {
120 struct rtl_priv *rtlpriv = rtl_priv(hw);
121 struct phy_sts_cck_8192s_t *cck_buf;
122 s8 rx_pwr_all = 0, rx_pwr[4];
123 u8 rf_rx_num = 0, evm, pwdb_all;
124 u8 i, max_spatial_stream;
125 u32 rssi, total_rssi = 0;
126 bool in_powersavemode = false;
127 bool is_cck_rate;
128
129 is_cck_rate = SE_RX_HAL_IS_CCK_RATE(pdesc);
130 pstats->packet_matchbssid = packet_match_bssid;
131 pstats->packet_toself = packet_toself;
132 pstats->is_cck = is_cck_rate;
133 pstats->packet_beacon = packet_beacon;
134 pstats->is_cck = is_cck_rate;
135 pstats->rx_mimo_signalquality[0] = -1;
136 pstats->rx_mimo_signalquality[1] = -1;
137
138 if (is_cck_rate) {
139 u8 report, cck_highpwr;
140 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
141
142 if (!in_powersavemode)
143 cck_highpwr = (u8) rtl_get_bbreg(hw,
144 RFPGA0_XA_HSSIPARAMETER2,
145 0x200);
146 else
147 cck_highpwr = false;
148
149 if (!cck_highpwr) {
150 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
151 report = cck_buf->cck_agc_rpt & 0xc0;
152 report = report >> 6;
153 switch (report) {
154 case 0x3:
155 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
156 break;
157 case 0x2:
158 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
159 break;
160 case 0x1:
161 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
162 break;
163 case 0x0:
164 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
165 break;
166 }
167 } else {
168 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
169 report = p_drvinfo->cfosho[0] & 0x60;
170 report = report >> 5;
171 switch (report) {
172 case 0x3:
173 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
174 break;
175 case 0x2:
176 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
177 break;
178 case 0x1:
179 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
180 break;
181 case 0x0:
182 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
183 break;
184 }
185 }
186
187 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
188
189 /* CCK gain is smaller than OFDM/MCS gain, */
190 /* so we add gain diff by experiences, the val is 6 */
191 pwdb_all += 6;
192 if (pwdb_all > 100)
193 pwdb_all = 100;
194 /* modify the offset to make the same gain index with OFDM. */
195 if (pwdb_all > 34 && pwdb_all <= 42)
196 pwdb_all -= 2;
197 else if (pwdb_all > 26 && pwdb_all <= 34)
198 pwdb_all -= 6;
199 else if (pwdb_all > 14 && pwdb_all <= 26)
200 pwdb_all -= 8;
201 else if (pwdb_all > 4 && pwdb_all <= 14)
202 pwdb_all -= 4;
203
204 pstats->rx_pwdb_all = pwdb_all;
205 pstats->recvsignalpower = rx_pwr_all;
206
207 if (packet_match_bssid) {
208 u8 sq;
209 if (pstats->rx_pwdb_all > 40) {
210 sq = 100;
211 } else {
212 sq = cck_buf->sq_rpt;
213 if (sq > 64)
214 sq = 0;
215 else if (sq < 20)
216 sq = 100;
217 else
218 sq = ((64 - sq) * 100) / 44;
219 }
220
221 pstats->signalquality = sq;
222 pstats->rx_mimo_signalquality[0] = sq;
223 pstats->rx_mimo_signalquality[1] = -1;
224 }
225 } else {
226 rtlpriv->dm.rfpath_rxenable[0] =
227 rtlpriv->dm.rfpath_rxenable[1] = true;
228 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
229 if (rtlpriv->dm.rfpath_rxenable[i])
230 rf_rx_num++;
231
232 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
233 0x3f) * 2) - 110;
234 rssi = _rtl92s_query_rxpwrpercentage(rx_pwr[i]);
235 total_rssi += rssi;
236 rtlpriv->stats.rx_snr_db[i] =
237 (long)(p_drvinfo->rxsnr[i] / 2);
238
239 if (packet_match_bssid)
240 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
241 }
242
243 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
244 pwdb_all = _rtl92s_query_rxpwrpercentage(rx_pwr_all);
245 pstats->rx_pwdb_all = pwdb_all;
246 pstats->rxpower = rx_pwr_all;
247 pstats->recvsignalpower = rx_pwr_all;
248
249 if (GET_RX_STATUS_DESC_RX_HT(pdesc) &&
250 GET_RX_STATUS_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
251 GET_RX_STATUS_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
252 max_spatial_stream = 2;
253 else
254 max_spatial_stream = 1;
255
256 for (i = 0; i < max_spatial_stream; i++) {
257 evm = _rtl92s_evm_db_to_percentage(p_drvinfo->rxevm[i]);
258
259 if (packet_match_bssid) {
260 if (i == 0)
261 pstats->signalquality = (u8)(evm &
262 0xff);
263 pstats->rx_mimo_signalquality[i] =
264 (u8) (evm & 0xff);
265 }
266 }
267 }
268
269 if (is_cck_rate)
270 pstats->signalstrength = (u8)(_rtl92se_signal_scale_mapping(hw,
271 pwdb_all));
272 else if (rf_rx_num != 0)
273 pstats->signalstrength = (u8) (_rtl92se_signal_scale_mapping(hw,
274 total_rssi /= rf_rx_num));
275 }
276
277 static void _rtl92se_process_ui_rssi(struct ieee80211_hw *hw,
278 struct rtl_stats *pstats)
279 {
280 struct rtl_priv *rtlpriv = rtl_priv(hw);
281 struct rtl_phy *rtlphy = &(rtlpriv->phy);
282 u8 rfpath;
283 u32 last_rssi, tmpval;
284
285 if (pstats->packet_toself || pstats->packet_beacon) {
286 rtlpriv->stats.rssi_calculate_cnt++;
287
288 if (rtlpriv->stats.ui_rssi.total_num++ >=
289 PHY_RSSI_SLID_WIN_MAX) {
290 rtlpriv->stats.ui_rssi.total_num =
291 PHY_RSSI_SLID_WIN_MAX;
292 last_rssi = rtlpriv->stats.ui_rssi.elements[
293 rtlpriv->stats.ui_rssi.index];
294 rtlpriv->stats.ui_rssi.total_val -= last_rssi;
295 }
296
297 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
298 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.index++]
299 = pstats->signalstrength;
300
301 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
302 rtlpriv->stats.ui_rssi.index = 0;
303
304 tmpval = rtlpriv->stats.ui_rssi.total_val /
305 rtlpriv->stats.ui_rssi.total_num;
306 rtlpriv->stats.signal_strength = _rtl92se_translate_todbm(hw,
307 (u8) tmpval);
308 pstats->rssi = rtlpriv->stats.signal_strength;
309 }
310
311 if (!pstats->is_cck && pstats->packet_toself) {
312 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
313 rfpath++) {
314 if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
315 rtlpriv->stats.rx_rssi_percentage[rfpath] =
316 pstats->rx_mimo_signalstrength[rfpath];
317
318 }
319
320 if (pstats->rx_mimo_signalstrength[rfpath] >
321 rtlpriv->stats.rx_rssi_percentage[rfpath]) {
322 rtlpriv->stats.rx_rssi_percentage[rfpath] =
323 ((rtlpriv->stats.rx_rssi_percentage[rfpath]
324 * (RX_SMOOTH_FACTOR - 1)) +
325 (pstats->rx_mimo_signalstrength[rfpath])) /
326 (RX_SMOOTH_FACTOR);
327
328 rtlpriv->stats.rx_rssi_percentage[rfpath] =
329 rtlpriv->stats.rx_rssi_percentage[rfpath]
330 + 1;
331 } else {
332 rtlpriv->stats.rx_rssi_percentage[rfpath] =
333 ((rtlpriv->stats.rx_rssi_percentage[rfpath]
334 * (RX_SMOOTH_FACTOR - 1)) +
335 (pstats->rx_mimo_signalstrength[rfpath])) /
336 (RX_SMOOTH_FACTOR);
337 }
338
339 }
340 }
341 }
342
343 static void _rtl92se_update_rxsignalstatistics(struct ieee80211_hw *hw,
344 struct rtl_stats *pstats)
345 {
346 struct rtl_priv *rtlpriv = rtl_priv(hw);
347 int weighting = 0;
348
349 if (rtlpriv->stats.recv_signal_power == 0)
350 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
351
352 if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
353 weighting = 5;
354 else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
355 weighting = (-5);
356
357 rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power * 5
358 + pstats->recvsignalpower +
359 weighting) / 6;
360 }
361
362 static void _rtl92se_process_pwdb(struct ieee80211_hw *hw,
363 struct rtl_stats *pstats)
364 {
365 struct rtl_priv *rtlpriv = rtl_priv(hw);
366 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
367 long undec_sm_pwdb = 0;
368
369 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
370 return;
371 } else {
372 undec_sm_pwdb =
373 rtlpriv->dm.undecorated_smoothed_pwdb;
374 }
375
376 if (pstats->packet_toself || pstats->packet_beacon) {
377 if (undec_sm_pwdb < 0)
378 undec_sm_pwdb = pstats->rx_pwdb_all;
379
380 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
381 undec_sm_pwdb =
382 (((undec_sm_pwdb) *
383 (RX_SMOOTH_FACTOR - 1)) +
384 (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
385
386 undec_sm_pwdb = undec_sm_pwdb + 1;
387 } else {
388 undec_sm_pwdb = (((undec_sm_pwdb) *
389 (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) /
390 (RX_SMOOTH_FACTOR);
391 }
392
393 rtlpriv->dm.undecorated_smoothed_pwdb = undec_sm_pwdb;
394 _rtl92se_update_rxsignalstatistics(hw, pstats);
395 }
396 }
397
398 static void rtl_92s_process_streams(struct ieee80211_hw *hw,
399 struct rtl_stats *pstats)
400 {
401 struct rtl_priv *rtlpriv = rtl_priv(hw);
402 u32 stream;
403
404 for (stream = 0; stream < 2; stream++) {
405 if (pstats->rx_mimo_signalquality[stream] != -1) {
406 if (rtlpriv->stats.rx_evm_percentage[stream] == 0) {
407 rtlpriv->stats.rx_evm_percentage[stream] =
408 pstats->rx_mimo_signalquality[stream];
409 }
410
411 rtlpriv->stats.rx_evm_percentage[stream] =
412 ((rtlpriv->stats.rx_evm_percentage[stream] *
413 (RX_SMOOTH_FACTOR - 1)) +
414 (pstats->rx_mimo_signalquality[stream] *
415 1)) / (RX_SMOOTH_FACTOR);
416 }
417 }
418 }
419
420 static void _rtl92se_process_ui_link_quality(struct ieee80211_hw *hw,
421 struct rtl_stats *pstats)
422 {
423 struct rtl_priv *rtlpriv = rtl_priv(hw);
424 u32 last_evm = 0, tmpval;
425
426 if (pstats->signalquality != 0) {
427 if (pstats->packet_toself || pstats->packet_beacon) {
428
429 if (rtlpriv->stats.ui_link_quality.total_num++ >=
430 PHY_LINKQUALITY_SLID_WIN_MAX) {
431 rtlpriv->stats.ui_link_quality.total_num =
432 PHY_LINKQUALITY_SLID_WIN_MAX;
433 last_evm =
434 rtlpriv->stats.ui_link_quality.elements[
435 rtlpriv->stats.ui_link_quality.index];
436 rtlpriv->stats.ui_link_quality.total_val -=
437 last_evm;
438 }
439
440 rtlpriv->stats.ui_link_quality.total_val +=
441 pstats->signalquality;
442 rtlpriv->stats.ui_link_quality.elements[
443 rtlpriv->stats.ui_link_quality.index++] =
444 pstats->signalquality;
445
446 if (rtlpriv->stats.ui_link_quality.index >=
447 PHY_LINKQUALITY_SLID_WIN_MAX)
448 rtlpriv->stats.ui_link_quality.index = 0;
449
450 tmpval = rtlpriv->stats.ui_link_quality.total_val /
451 rtlpriv->stats.ui_link_quality.total_num;
452 rtlpriv->stats.signal_quality = tmpval;
453
454 rtlpriv->stats.last_sigstrength_inpercent = tmpval;
455
456 rtl_92s_process_streams(hw, pstats);
457
458 }
459 }
460 }
461
462 static void _rtl92se_process_phyinfo(struct ieee80211_hw *hw,
463 u8 *buffer,
464 struct rtl_stats *pcurrent_stats)
465 {
466
467 if (!pcurrent_stats->packet_matchbssid &&
468 !pcurrent_stats->packet_beacon)
469 return;
470
471 _rtl92se_process_ui_rssi(hw, pcurrent_stats);
472 _rtl92se_process_pwdb(hw, pcurrent_stats);
473 _rtl92se_process_ui_link_quality(hw, pcurrent_stats);
474 }
475
476 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
477 struct sk_buff *skb, struct rtl_stats *pstats,
478 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
479 {
480 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
481 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
482
483 struct ieee80211_hdr *hdr;
484 u8 *tmp_buf;
485 u8 *praddr;
486 __le16 fc;
487 u16 type, cfc;
488 bool packet_matchbssid, packet_toself, packet_beacon;
489
490 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
491
492 hdr = (struct ieee80211_hdr *)tmp_buf;
493 fc = hdr->frame_control;
494 cfc = le16_to_cpu(fc);
495 type = WLAN_FC_GET_TYPE(fc);
496 praddr = hdr->addr1;
497
498 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
499 (!compare_ether_addr(mac->bssid, (cfc & IEEE80211_FCTL_TODS) ?
500 hdr->addr1 : (cfc & IEEE80211_FCTL_FROMDS) ?
501 hdr->addr2 : hdr->addr3)) && (!pstats->hwerror) &&
502 (!pstats->crc) && (!pstats->icv));
503
504 packet_toself = packet_matchbssid &&
505 (!compare_ether_addr(praddr, rtlefuse->dev_addr));
506
507 if (ieee80211_is_beacon(fc))
508 packet_beacon = true;
509
510 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
511 packet_matchbssid, packet_toself, packet_beacon);
512 _rtl92se_process_phyinfo(hw, tmp_buf, pstats);
513 }
514
515 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
516 struct ieee80211_rx_status *rx_status, u8 *pdesc,
517 struct sk_buff *skb)
518 {
519 struct rx_fwinfo *p_drvinfo;
520 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
521
522 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
523 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
524 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
525 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
526 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
527 stats->hwerror = (u16)(stats->crc | stats->icv);
528 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
529
530 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
531 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
532 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
533 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
534 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
535
536 if (stats->hwerror)
537 return false;
538
539 rx_status->freq = hw->conf.channel->center_freq;
540 rx_status->band = hw->conf.channel->band;
541
542 if (GET_RX_STATUS_DESC_CRC32(pdesc))
543 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
544
545 if (!GET_RX_STATUS_DESC_SWDEC(pdesc))
546 rx_status->flag |= RX_FLAG_DECRYPTED;
547
548 if (GET_RX_STATUS_DESC_BW(pdesc))
549 rx_status->flag |= RX_FLAG_40MHZ;
550
551 if (GET_RX_STATUS_DESC_RX_HT(pdesc))
552 rx_status->flag |= RX_FLAG_HT;
553
554 rx_status->flag |= RX_FLAG_MACTIME_MPDU;
555
556 if (stats->decrypted)
557 rx_status->flag |= RX_FLAG_DECRYPTED;
558
559 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
560 (bool)GET_RX_STATUS_DESC_RX_HT(pdesc),
561 (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc),
562 (bool)GET_RX_STATUS_DESC_PAGGR(pdesc));
563
564
565 rx_status->mactime = GET_RX_STATUS_DESC_TSFL(pdesc);
566 if (phystatus) {
567 p_drvinfo = (struct rx_fwinfo *)(skb->data +
568 stats->rx_bufshift);
569 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
570 p_drvinfo);
571 }
572
573 /*rx_status->qual = stats->signal; */
574 rx_status->signal = stats->rssi + 10;
575 /*rx_status->noise = -stats->noise; */
576
577 return true;
578 }
579
580 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
581 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
582 struct ieee80211_tx_info *info, struct sk_buff *skb,
583 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
584 {
585 struct rtl_priv *rtlpriv = rtl_priv(hw);
586 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
587 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
588 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
589 struct ieee80211_sta *sta = info->control.sta;
590 u8 *pdesc = (u8 *) pdesc_tx;
591 u16 seq_number;
592 __le16 fc = hdr->frame_control;
593 u8 reserved_macid = 0;
594 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
595 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
596 bool lastseg = (!(hdr->frame_control &
597 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
598 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
599 PCI_DMA_TODEVICE);
600 u8 bw_40 = 0;
601
602 if (mac->opmode == NL80211_IFTYPE_STATION) {
603 bw_40 = mac->bw_40;
604 } else if (mac->opmode == NL80211_IFTYPE_AP ||
605 mac->opmode == NL80211_IFTYPE_ADHOC) {
606 if (sta)
607 bw_40 = sta->ht_cap.cap &
608 IEEE80211_HT_CAP_SUP_WIDTH_20_40;
609 }
610
611 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
612
613 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
614
615 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
616
617 if (firstseg) {
618 if (rtlpriv->dm.useramask) {
619 /* set txdesc macId */
620 if (ptcb_desc->mac_id < 32) {
621 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
622 reserved_macid |= ptcb_desc->mac_id;
623 }
624 }
625 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
626
627 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
628 DESC92_RATEMCS0) ? 1 : 0));
629
630 if (rtlhal->version == VERSION_8192S_ACUT) {
631 if (ptcb_desc->hw_rate == DESC92_RATE1M ||
632 ptcb_desc->hw_rate == DESC92_RATE2M ||
633 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
634 ptcb_desc->hw_rate == DESC92_RATE11M) {
635 ptcb_desc->hw_rate = DESC92_RATE12M;
636 }
637 }
638
639 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
640
641 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
642 SET_TX_DESC_TX_SHORT(pdesc, 0);
643
644 /* Aggregation related */
645 if (info->flags & IEEE80211_TX_CTL_AMPDU)
646 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
647
648 /* For AMPDU, we must insert SSN into TX_DESC */
649 SET_TX_DESC_SEQ(pdesc, seq_number);
650
651 /* Protection mode related */
652 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
653 /* We choose only one protection mode to execute */
654 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
655 !ptcb_desc->cts_enable) ? 1 : 0));
656 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
657 1 : 0));
658 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
659
660 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
661 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
662 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
663 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
664 DESC92_RATE54M) ?
665 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
666 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
667
668
669 /* Set Bandwidth and sub-channel settings. */
670 if (bw_40) {
671 if (ptcb_desc->packet_bw) {
672 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
673 /* use duplicated mode */
674 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
675 } else {
676 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
677 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
678 mac->cur_40_prime_sc);
679 }
680 } else {
681 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
682 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
683 }
684
685 /* 3 Fill necessary field in First Descriptor */
686 /*DWORD 0*/
687 SET_TX_DESC_LINIP(pdesc, 0);
688 SET_TX_DESC_OFFSET(pdesc, 32);
689 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
690
691 /*DWORD 1*/
692 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
693
694 /* Fill security related */
695 if (info->control.hw_key) {
696 struct ieee80211_key_conf *keyconf;
697
698 keyconf = info->control.hw_key;
699 switch (keyconf->cipher) {
700 case WLAN_CIPHER_SUITE_WEP40:
701 case WLAN_CIPHER_SUITE_WEP104:
702 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
703 break;
704 case WLAN_CIPHER_SUITE_TKIP:
705 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
706 break;
707 case WLAN_CIPHER_SUITE_CCMP:
708 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
709 break;
710 default:
711 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
712 break;
713
714 }
715 }
716
717 /* Set Packet ID */
718 SET_TX_DESC_PACKET_ID(pdesc, 0);
719
720 /* We will assign magement queue to BK. */
721 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
722
723 /* Alwasy enable all rate fallback range */
724 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
725
726 /* Fix: I don't kown why hw use 6.5M to tx when set it */
727 SET_TX_DESC_USER_RATE(pdesc,
728 ptcb_desc->use_driver_rate ? 1 : 0);
729
730 /* Set NON_QOS bit. */
731 if (!ieee80211_is_data_qos(fc))
732 SET_TX_DESC_NON_QOS(pdesc, 1);
733
734 }
735
736 /* Fill fields that are required to be initialized
737 * in all of the descriptors */
738 /*DWORD 0 */
739 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
740 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
741
742 /* DWORD 7 */
743 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
744
745 /* DOWRD 8 */
746 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
747
748 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, ("\n"));
749 }
750
751 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
752 bool firstseg, bool lastseg, struct sk_buff *skb)
753 {
754 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
755 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
756 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
757
758 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
759 PCI_DMA_TODEVICE);
760
761 /* Clear all status */
762 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
763
764 /* This bit indicate this packet is used for FW download. */
765 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
766 /* For firmware downlaod we only need to set LINIP */
767 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
768
769 /* 92SE must set as 1 for firmware download HW DMA error */
770 SET_TX_DESC_FIRST_SEG(pdesc, 1);
771 SET_TX_DESC_LAST_SEG(pdesc, 1);
772
773 /* 92SE need not to set TX packet size when firmware download */
774 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
775 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
776 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
777
778 wmb();
779 SET_TX_DESC_OWN(pdesc, 1);
780 } else { /* H2C Command Desc format (Host TXCMD) */
781 /* 92SE must set as 1 for firmware download HW DMA error */
782 SET_TX_DESC_FIRST_SEG(pdesc, 1);
783 SET_TX_DESC_LAST_SEG(pdesc, 1);
784
785 SET_TX_DESC_OFFSET(pdesc, 0x20);
786
787 /* Buffer size + command header */
788 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
789 /* Fixed queue of H2C command */
790 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
791
792 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
793
794 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
795 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
796
797 wmb();
798 SET_TX_DESC_OWN(pdesc, 1);
799
800 }
801 }
802
803 void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
804 {
805 if (istx) {
806 switch (desc_name) {
807 case HW_DESC_OWN:
808 wmb();
809 SET_TX_DESC_OWN(pdesc, 1);
810 break;
811 case HW_DESC_TX_NEXTDESC_ADDR:
812 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
813 break;
814 default:
815 RT_ASSERT(false, ("ERR txdesc :%d not process\n",
816 desc_name));
817 break;
818 }
819 } else {
820 switch (desc_name) {
821 case HW_DESC_RXOWN:
822 wmb();
823 SET_RX_STATUS_DESC_OWN(pdesc, 1);
824 break;
825 case HW_DESC_RXBUFF_ADDR:
826 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
827 break;
828 case HW_DESC_RXPKT_LEN:
829 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
830 break;
831 case HW_DESC_RXERO:
832 SET_RX_STATUS_DESC_EOR(pdesc, 1);
833 break;
834 default:
835 RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
836 desc_name));
837 break;
838 }
839 }
840 }
841
842 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
843 {
844 u32 ret = 0;
845
846 if (istx) {
847 switch (desc_name) {
848 case HW_DESC_OWN:
849 ret = GET_TX_DESC_OWN(desc);
850 break;
851 case HW_DESC_TXBUFF_ADDR:
852 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
853 break;
854 default:
855 RT_ASSERT(false, ("ERR txdesc :%d not process\n",
856 desc_name));
857 break;
858 }
859 } else {
860 switch (desc_name) {
861 case HW_DESC_OWN:
862 ret = GET_RX_STATUS_DESC_OWN(desc);
863 break;
864 case HW_DESC_RXPKT_LEN:
865 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
866 break;
867 default:
868 RT_ASSERT(false, ("ERR rxdesc :%d not process\n",
869 desc_name));
870 break;
871 }
872 }
873 return ret;
874 }
875
876 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
877 {
878 struct rtl_priv *rtlpriv = rtl_priv(hw);
879 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));
880 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree