projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ath9k: Adding initvalues for Atheros AR9285 chipset.
[linux-block.git] / drivers / net / wireless / ath9k / mac.c
CommitLineData
f1dc5600
S		 1/*
2 * Copyright (c) 2008 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "core.h"
18#include "hw.h"
19#include "reg.h"
20#include "phy.h"
21
22static void ath9k_hw_set_txq_interrupts(struct ath_hal *ah,
23 struct ath9k_tx_queue_info *qi)
24{
25 struct ath_hal_5416 *ahp = AH5416(ah);
26
27 DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT,
04bd4638
S		 28 "tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n",
29 ahp->ah_txOkInterruptMask, ahp->ah_txErrInterruptMask,
30 ahp->ah_txDescInterruptMask, ahp->ah_txEolInterruptMask,
31 ahp->ah_txUrnInterruptMask);
f1dc5600
S		 32
33 REG_WRITE(ah, AR_IMR_S0,
34 SM(ahp->ah_txOkInterruptMask, AR_IMR_S0_QCU_TXOK)
35 | SM(ahp->ah_txDescInterruptMask, AR_IMR_S0_QCU_TXDESC));
36 REG_WRITE(ah, AR_IMR_S1,
37 SM(ahp->ah_txErrInterruptMask, AR_IMR_S1_QCU_TXERR)
38 | SM(ahp->ah_txEolInterruptMask, AR_IMR_S1_QCU_TXEOL));
39 REG_RMW_FIELD(ah, AR_IMR_S2,
40 AR_IMR_S2_QCU_TXURN, ahp->ah_txUrnInterruptMask);
41}
42
f1dc5600
S		 43u32 ath9k_hw_gettxbuf(struct ath_hal *ah, u32 q)
44{
45 return REG_READ(ah, AR_QTXDP(q));
46}
47
48bool ath9k_hw_puttxbuf(struct ath_hal *ah, u32 q, u32 txdp)
49{
50 REG_WRITE(ah, AR_QTXDP(q), txdp);
51
52 return true;
53}
54
55bool ath9k_hw_txstart(struct ath_hal *ah, u32 q)
56{
04bd4638 57 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q);
f1dc5600
S		 58
59 REG_WRITE(ah, AR_Q_TXE, 1 << q);
60
61 return true;
62}
63
64u32 ath9k_hw_numtxpending(struct ath_hal *ah, u32 q)
65{
66 u32 npend;
67
68 npend = REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT;
69 if (npend == 0) {
70
71 if (REG_READ(ah, AR_Q_TXE) & (1 << q))
72 npend = 1;
73 }
74
75 return npend;
76}
77
78bool ath9k_hw_updatetxtriglevel(struct ath_hal *ah, bool bIncTrigLevel)
79{
80 struct ath_hal_5416 *ahp = AH5416(ah);
81 u32 txcfg, curLevel, newLevel;
82 enum ath9k_int omask;
83
84 if (ah->ah_txTrigLevel >= MAX_TX_FIFO_THRESHOLD)
85 return false;
86
87 omask = ath9k_hw_set_interrupts(ah, ahp->ah_maskReg & ~ATH9K_INT_GLOBAL);
88
89 txcfg = REG_READ(ah, AR_TXCFG);
90 curLevel = MS(txcfg, AR_FTRIG);
91 newLevel = curLevel;
92 if (bIncTrigLevel) {
93 if (curLevel < MAX_TX_FIFO_THRESHOLD)
94 newLevel++;
95 } else if (curLevel > MIN_TX_FIFO_THRESHOLD)
96 newLevel--;
97 if (newLevel != curLevel)
98 REG_WRITE(ah, AR_TXCFG,
99 (txcfg & ~AR_FTRIG) | SM(newLevel, AR_FTRIG));
100
101 ath9k_hw_set_interrupts(ah, omask);
102
103 ah->ah_txTrigLevel = newLevel;
104
105 return newLevel != curLevel;
106}
107
108bool ath9k_hw_stoptxdma(struct ath_hal *ah, u32 q)
109{
110 u32 tsfLow, j, wait;
111
112 REG_WRITE(ah, AR_Q_TXD, 1 << q);
113
114 for (wait = 1000; wait != 0; wait--) {
115 if (ath9k_hw_numtxpending(ah, q) == 0)
116 break;
117 udelay(100);
118 }
119
120 if (ath9k_hw_numtxpending(ah, q)) {
121 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
122 "%s: Num of pending TX Frames %d on Q %d\n",
123 __func__, ath9k_hw_numtxpending(ah, q), q);
124
125 for (j = 0; j < 2; j++) {
126 tsfLow = REG_READ(ah, AR_TSF_L32);
127 REG_WRITE(ah, AR_QUIET2,
128 SM(10, AR_QUIET2_QUIET_DUR));
129 REG_WRITE(ah, AR_QUIET_PERIOD, 100);
130 REG_WRITE(ah, AR_NEXT_QUIET_TIMER, tsfLow >> 10);
131 REG_SET_BIT(ah, AR_TIMER_MODE,
132 AR_QUIET_TIMER_EN);
133
134 if ((REG_READ(ah, AR_TSF_L32) >> 10) == (tsfLow >> 10))
135 break;
136
137 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
04bd4638
S		 138 "TSF have moved while trying to set "
139 "quiet time TSF: 0x%08x\n", tsfLow);
f1dc5600
S		 140 }
141
142 REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
143
144 udelay(200);
145 REG_CLR_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN);
146
147 wait = 1000;
148
149 while (ath9k_hw_numtxpending(ah, q)) {
150 if ((--wait) == 0) {
151 DPRINTF(ah->ah_sc, ATH_DBG_XMIT,
04bd4638
S		 152 "Failed to stop Tx DMA in 100 "
153 "msec after killing last frame\n");
f1dc5600
S		 154 break;
155 }
156 udelay(100);
157 }
158
159 REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
160 }
161
162 REG_WRITE(ah, AR_Q_TXD, 0);
163
164 return wait != 0;
165}
166
167bool ath9k_hw_filltxdesc(struct ath_hal *ah, struct ath_desc *ds,
168 u32 segLen, bool firstSeg,
169 bool lastSeg, const struct ath_desc *ds0)
170{
171 struct ar5416_desc *ads = AR5416DESC(ds);
172
173 if (firstSeg) {
174 ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore);
175 } else if (lastSeg) {
176 ads->ds_ctl0 = 0;
177 ads->ds_ctl1 = segLen;
178 ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2;
179 ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3;
180 } else {
181 ads->ds_ctl0 = 0;
182 ads->ds_ctl1 = segLen | AR_TxMore;
183 ads->ds_ctl2 = 0;
184 ads->ds_ctl3 = 0;
185 }
186 ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
187 ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
188 ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
189 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
190 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
191
192 return true;
193}
194
195void ath9k_hw_cleartxdesc(struct ath_hal *ah, struct ath_desc *ds)
196{
197 struct ar5416_desc *ads = AR5416DESC(ds);
198
199 ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
200 ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
201 ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
202 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
203 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
204}
205
206int ath9k_hw_txprocdesc(struct ath_hal *ah, struct ath_desc *ds)
207{
208 struct ar5416_desc *ads = AR5416DESC(ds);
209
210 if ((ads->ds_txstatus9 & AR_TxDone) == 0)
211 return -EINPROGRESS;
212
213 ds->ds_txstat.ts_seqnum = MS(ads->ds_txstatus9, AR_SeqNum);
214 ds->ds_txstat.ts_tstamp = ads->AR_SendTimestamp;
215 ds->ds_txstat.ts_status = 0;
216 ds->ds_txstat.ts_flags = 0;
217
218 if (ads->ds_txstatus1 & AR_ExcessiveRetries)
219 ds->ds_txstat.ts_status |= ATH9K_TXERR_XRETRY;
220 if (ads->ds_txstatus1 & AR_Filtered)
221 ds->ds_txstat.ts_status |= ATH9K_TXERR_FILT;
daa9deb3 222 if (ads->ds_txstatus1 & AR_FIFOUnderrun) {
f1dc5600 223 ds->ds_txstat.ts_status |= ATH9K_TXERR_FIFO;
daa9deb3
S		 224 ath9k_hw_updatetxtriglevel(ah, true);
225 }
f1dc5600
S		 226 if (ads->ds_txstatus9 & AR_TxOpExceeded)
227 ds->ds_txstat.ts_status |= ATH9K_TXERR_XTXOP;
228 if (ads->ds_txstatus1 & AR_TxTimerExpired)
229 ds->ds_txstat.ts_status |= ATH9K_TXERR_TIMER_EXPIRED;
230
231 if (ads->ds_txstatus1 & AR_DescCfgErr)
232 ds->ds_txstat.ts_flags |= ATH9K_TX_DESC_CFG_ERR;
233 if (ads->ds_txstatus1 & AR_TxDataUnderrun) {
234 ds->ds_txstat.ts_flags |= ATH9K_TX_DATA_UNDERRUN;
235 ath9k_hw_updatetxtriglevel(ah, true);
236 }
237 if (ads->ds_txstatus1 & AR_TxDelimUnderrun) {
238 ds->ds_txstat.ts_flags |= ATH9K_TX_DELIM_UNDERRUN;
239 ath9k_hw_updatetxtriglevel(ah, true);
240 }
241 if (ads->ds_txstatus0 & AR_TxBaStatus) {
242 ds->ds_txstat.ts_flags |= ATH9K_TX_BA;
243 ds->ds_txstat.ba_low = ads->AR_BaBitmapLow;
244 ds->ds_txstat.ba_high = ads->AR_BaBitmapHigh;
245 }
246
247 ds->ds_txstat.ts_rateindex = MS(ads->ds_txstatus9, AR_FinalTxIdx);
248 switch (ds->ds_txstat.ts_rateindex) {
249 case 0:
250 ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate0);
251 break;
252 case 1:
253 ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate1);
254 break;
255 case 2:
256 ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate2);
257 break;
258 case 3:
259 ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate3);
260 break;
261 }
262
263 ds->ds_txstat.ts_rssi = MS(ads->ds_txstatus5, AR_TxRSSICombined);
264 ds->ds_txstat.ts_rssi_ctl0 = MS(ads->ds_txstatus0, AR_TxRSSIAnt00);
265 ds->ds_txstat.ts_rssi_ctl1 = MS(ads->ds_txstatus0, AR_TxRSSIAnt01);
266 ds->ds_txstat.ts_rssi_ctl2 = MS(ads->ds_txstatus0, AR_TxRSSIAnt02);
267 ds->ds_txstat.ts_rssi_ext0 = MS(ads->ds_txstatus5, AR_TxRSSIAnt10);
268 ds->ds_txstat.ts_rssi_ext1 = MS(ads->ds_txstatus5, AR_TxRSSIAnt11);
269 ds->ds_txstat.ts_rssi_ext2 = MS(ads->ds_txstatus5, AR_TxRSSIAnt12);
270 ds->ds_txstat.evm0 = ads->AR_TxEVM0;
271 ds->ds_txstat.evm1 = ads->AR_TxEVM1;
272 ds->ds_txstat.evm2 = ads->AR_TxEVM2;
273 ds->ds_txstat.ts_shortretry = MS(ads->ds_txstatus1, AR_RTSFailCnt);
274 ds->ds_txstat.ts_longretry = MS(ads->ds_txstatus1, AR_DataFailCnt);
275 ds->ds_txstat.ts_virtcol = MS(ads->ds_txstatus1, AR_VirtRetryCnt);
276 ds->ds_txstat.ts_antenna = 1;
277
278 return 0;
279}
280
281void ath9k_hw_set11n_txdesc(struct ath_hal *ah, struct ath_desc *ds,
282 u32 pktLen, enum ath9k_pkt_type type, u32 txPower,
283 u32 keyIx, enum ath9k_key_type keyType, u32 flags)
284{
285 struct ar5416_desc *ads = AR5416DESC(ds);
286 struct ath_hal_5416 *ahp = AH5416(ah);
287
288 txPower += ahp->ah_txPowerIndexOffset;
289 if (txPower > 63)
290 txPower = 63;
291
292 ads->ds_ctl0 = (pktLen & AR_FrameLen)
293 | (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
294 | SM(txPower, AR_XmitPower)
295 | (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
296 | (flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
297 | (flags & ATH9K_TXDESC_INTREQ ? AR_TxIntrReq : 0)
298 | (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0);
299
300 ads->ds_ctl1 =
301 (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0)
302 | SM(type, AR_FrameType)
303 | (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
304 | (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
305 | (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
306
307 ads->ds_ctl6 = SM(keyType, AR_EncrType);
308
309 if (AR_SREV_9285(ah)) {
310 ads->ds_ctl8 = 0;
311 ads->ds_ctl9 = 0;
312 ads->ds_ctl10 = 0;
313 ads->ds_ctl11 = 0;
314 }
315}
316
317void ath9k_hw_set11n_ratescenario(struct ath_hal *ah, struct ath_desc *ds,
318 struct ath_desc *lastds,
319 u32 durUpdateEn, u32 rtsctsRate,
320 u32 rtsctsDuration,
321 struct ath9k_11n_rate_series series[],
322 u32 nseries, u32 flags)
323{
324 struct ar5416_desc *ads = AR5416DESC(ds);
325 struct ar5416_desc *last_ads = AR5416DESC(lastds);
326 u32 ds_ctl0;
327
328 (void) nseries;
329 (void) rtsctsDuration;
330
331 if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) {
332 ds_ctl0 = ads->ds_ctl0;
333
334 if (flags & ATH9K_TXDESC_RTSENA) {
335 ds_ctl0 &= ~AR_CTSEnable;
336 ds_ctl0 |= AR_RTSEnable;
337 } else {
338 ds_ctl0 &= ~AR_RTSEnable;
339 ds_ctl0 |= AR_CTSEnable;
340 }
341
342 ads->ds_ctl0 = ds_ctl0;
343 } else {
344 ads->ds_ctl0 =
345 (ads->ds_ctl0 & ~(AR_RTSEnable | AR_CTSEnable));
346 }
347
348 ads->ds_ctl2 = set11nTries(series, 0)
349 | set11nTries(series, 1)
350 | set11nTries(series, 2)
351 | set11nTries(series, 3)
352 | (durUpdateEn ? AR_DurUpdateEna : 0)
353 | SM(0, AR_BurstDur);
354
355 ads->ds_ctl3 = set11nRate(series, 0)
356 | set11nRate(series, 1)
357 | set11nRate(series, 2)
358 | set11nRate(series, 3);
359
360 ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0)
361 | set11nPktDurRTSCTS(series, 1);
362
363 ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2)
364 | set11nPktDurRTSCTS(series, 3);
365
366 ads->ds_ctl7 = set11nRateFlags(series, 0)
367 | set11nRateFlags(series, 1)
368 | set11nRateFlags(series, 2)
369 | set11nRateFlags(series, 3)
370 | SM(rtsctsRate, AR_RTSCTSRate);
371 last_ads->ds_ctl2 = ads->ds_ctl2;
372 last_ads->ds_ctl3 = ads->ds_ctl3;
373}
374
375void ath9k_hw_set11n_aggr_first(struct ath_hal *ah, struct ath_desc *ds,
376 u32 aggrLen)
377{
378 struct ar5416_desc *ads = AR5416DESC(ds);
379
380 ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
381 ads->ds_ctl6 &= ~AR_AggrLen;
382 ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen);
383}
384
385void ath9k_hw_set11n_aggr_middle(struct ath_hal *ah, struct ath_desc *ds,
386 u32 numDelims)
387{
388 struct ar5416_desc *ads = AR5416DESC(ds);
389 unsigned int ctl6;
390
391 ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
392
393 ctl6 = ads->ds_ctl6;
394 ctl6 &= ~AR_PadDelim;
395 ctl6 |= SM(numDelims, AR_PadDelim);
396 ads->ds_ctl6 = ctl6;
397}
398
399void ath9k_hw_set11n_aggr_last(struct ath_hal *ah, struct ath_desc *ds)
400{
401 struct ar5416_desc *ads = AR5416DESC(ds);
402
403 ads->ds_ctl1 |= AR_IsAggr;
404 ads->ds_ctl1 &= ~AR_MoreAggr;
405 ads->ds_ctl6 &= ~AR_PadDelim;
406}
407
408void ath9k_hw_clr11n_aggr(struct ath_hal *ah, struct ath_desc *ds)
409{
410 struct ar5416_desc *ads = AR5416DESC(ds);
411
412 ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr);
413}
414
415void ath9k_hw_set11n_burstduration(struct ath_hal *ah, struct ath_desc *ds,
416 u32 burstDuration)
417{
418 struct ar5416_desc *ads = AR5416DESC(ds);
419
420 ads->ds_ctl2 &= ~AR_BurstDur;
421 ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur);
422}
423
424void ath9k_hw_set11n_virtualmorefrag(struct ath_hal *ah, struct ath_desc *ds,
425 u32 vmf)
426{
427 struct ar5416_desc *ads = AR5416DESC(ds);
428
429 if (vmf)
430 ads->ds_ctl0 |= AR_VirtMoreFrag;
431 else
432 ads->ds_ctl0 &= ~AR_VirtMoreFrag;
433}
434
435void ath9k_hw_gettxintrtxqs(struct ath_hal *ah, u32 *txqs)
436{
437 struct ath_hal_5416 *ahp = AH5416(ah);
438
439 *txqs &= ahp->ah_intrTxqs;
440 ahp->ah_intrTxqs &= ~(*txqs);
441}
442
443bool ath9k_hw_set_txq_props(struct ath_hal *ah, int q,
444 const struct ath9k_tx_queue_info *qinfo)
445{
446 u32 cw;
447 struct ath_hal_5416 *ahp = AH5416(ah);
448 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
449 struct ath9k_tx_queue_info *qi;
450
451 if (q >= pCap->total_queues) {
04bd4638 452 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q);
f1dc5600
S		 453 return false;
454 }
455
456 qi = &ahp->ah_txq[q];
457 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
04bd4638 458 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n");
f1dc5600
S		 459 return false;
460 }
461
04bd4638 462 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %p\n", qi);
f1dc5600
S		 463
464 qi->tqi_ver = qinfo->tqi_ver;
465 qi->tqi_subtype = qinfo->tqi_subtype;
466 qi->tqi_qflags = qinfo->tqi_qflags;
467 qi->tqi_priority = qinfo->tqi_priority;
468 if (qinfo->tqi_aifs != ATH9K_TXQ_USEDEFAULT)
469 qi->tqi_aifs = min(qinfo->tqi_aifs, 255U);
470 else
471 qi->tqi_aifs = INIT_AIFS;
472 if (qinfo->tqi_cwmin != ATH9K_TXQ_USEDEFAULT) {
473 cw = min(qinfo->tqi_cwmin, 1024U);
474 qi->tqi_cwmin = 1;
475 while (qi->tqi_cwmin < cw)
476 qi->tqi_cwmin = (qi->tqi_cwmin << 1) | 1;
477 } else
478 qi->tqi_cwmin = qinfo->tqi_cwmin;
479 if (qinfo->tqi_cwmax != ATH9K_TXQ_USEDEFAULT) {
480 cw = min(qinfo->tqi_cwmax, 1024U);
481 qi->tqi_cwmax = 1;
482 while (qi->tqi_cwmax < cw)
483 qi->tqi_cwmax = (qi->tqi_cwmax << 1) | 1;
484 } else
485 qi->tqi_cwmax = INIT_CWMAX;
486
487 if (qinfo->tqi_shretry != 0)
488 qi->tqi_shretry = min((u32) qinfo->tqi_shretry, 15U);
489 else
490 qi->tqi_shretry = INIT_SH_RETRY;
491 if (qinfo->tqi_lgretry != 0)
492 qi->tqi_lgretry = min((u32) qinfo->tqi_lgretry, 15U);
493 else
494 qi->tqi_lgretry = INIT_LG_RETRY;
495 qi->tqi_cbrPeriod = qinfo->tqi_cbrPeriod;
496 qi->tqi_cbrOverflowLimit = qinfo->tqi_cbrOverflowLimit;
497 qi->tqi_burstTime = qinfo->tqi_burstTime;
498 qi->tqi_readyTime = qinfo->tqi_readyTime;
499
500 switch (qinfo->tqi_subtype) {
501 case ATH9K_WME_UPSD:
502 if (qi->tqi_type == ATH9K_TX_QUEUE_DATA)
503 qi->tqi_intFlags = ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS;
504 break;
505 default:
506 break;
507 }
508
509 return true;
510}
511
512bool ath9k_hw_get_txq_props(struct ath_hal *ah, int q,
513 struct ath9k_tx_queue_info *qinfo)
514{
515 struct ath_hal_5416 *ahp = AH5416(ah);
516 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
517 struct ath9k_tx_queue_info *qi;
518
519 if (q >= pCap->total_queues) {
04bd4638 520 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q);
f1dc5600
S		 521 return false;
522 }
523
524 qi = &ahp->ah_txq[q];
525 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
04bd4638 526 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n");
f1dc5600
S		 527 return false;
528 }
529
530 qinfo->tqi_qflags = qi->tqi_qflags;
531 qinfo->tqi_ver = qi->tqi_ver;
532 qinfo->tqi_subtype = qi->tqi_subtype;
533 qinfo->tqi_qflags = qi->tqi_qflags;
534 qinfo->tqi_priority = qi->tqi_priority;
535 qinfo->tqi_aifs = qi->tqi_aifs;
536 qinfo->tqi_cwmin = qi->tqi_cwmin;
537 qinfo->tqi_cwmax = qi->tqi_cwmax;
538 qinfo->tqi_shretry = qi->tqi_shretry;
539 qinfo->tqi_lgretry = qi->tqi_lgretry;
540 qinfo->tqi_cbrPeriod = qi->tqi_cbrPeriod;
541 qinfo->tqi_cbrOverflowLimit = qi->tqi_cbrOverflowLimit;
542 qinfo->tqi_burstTime = qi->tqi_burstTime;
543 qinfo->tqi_readyTime = qi->tqi_readyTime;
544
545 return true;
546}
547
548int ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type,
549 const struct ath9k_tx_queue_info *qinfo)
550{
551 struct ath_hal_5416 *ahp = AH5416(ah);
552 struct ath9k_tx_queue_info *qi;
553 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
554 int q;
555
556 switch (type) {
557 case ATH9K_TX_QUEUE_BEACON:
558 q = pCap->total_queues - 1;
559 break;
560 case ATH9K_TX_QUEUE_CAB:
561 q = pCap->total_queues - 2;
562 break;
563 case ATH9K_TX_QUEUE_PSPOLL:
564 q = 1;
565 break;
566 case ATH9K_TX_QUEUE_UAPSD:
567 q = pCap->total_queues - 3;
568 break;
569 case ATH9K_TX_QUEUE_DATA:
570 for (q = 0; q < pCap->total_queues; q++)
571 if (ahp->ah_txq[q].tqi_type ==
572 ATH9K_TX_QUEUE_INACTIVE)
573 break;
574 if (q == pCap->total_queues) {
575 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
04bd4638 576 "no available tx queue\n");
f1dc5600
S		 577 return -1;
578 }
579 break;
580 default:
04bd4638 581 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "bad tx queue type %u\n", type);
f1dc5600
S		 582 return -1;
583 }
584
04bd4638 585 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q);
f1dc5600
S		 586
587 qi = &ahp->ah_txq[q];
588 if (qi->tqi_type != ATH9K_TX_QUEUE_INACTIVE) {
589 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
04bd4638 590 "tx queue %u already active\n", q);
f1dc5600
S		 591 return -1;
592 }
593 memset(qi, 0, sizeof(struct ath9k_tx_queue_info));
594 qi->tqi_type = type;
595 if (qinfo == NULL) {
596 qi->tqi_qflags =
597 TXQ_FLAG_TXOKINT_ENABLE
598 | TXQ_FLAG_TXERRINT_ENABLE
599 | TXQ_FLAG_TXDESCINT_ENABLE | TXQ_FLAG_TXURNINT_ENABLE;
600 qi->tqi_aifs = INIT_AIFS;
601 qi->tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
602 qi->tqi_cwmax = INIT_CWMAX;
603 qi->tqi_shretry = INIT_SH_RETRY;
604 qi->tqi_lgretry = INIT_LG_RETRY;
605 qi->tqi_physCompBuf = 0;
606 } else {
607 qi->tqi_physCompBuf = qinfo->tqi_physCompBuf;
608 (void) ath9k_hw_set_txq_props(ah, q, qinfo);
609 }
610
611 return q;
612}
613
614bool ath9k_hw_releasetxqueue(struct ath_hal *ah, u32 q)
615{
616 struct ath_hal_5416 *ahp = AH5416(ah);
617 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
618 struct ath9k_tx_queue_info *qi;
619
620 if (q >= pCap->total_queues) {
04bd4638 621 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q);
f1dc5600
S		 622 return false;
623 }
624 qi = &ahp->ah_txq[q];
625 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
04bd4638 626 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q);
f1dc5600
S		 627 return false;
628 }
629
04bd4638 630 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "release queue %u\n", q);
f1dc5600
S		 631
632 qi->tqi_type = ATH9K_TX_QUEUE_INACTIVE;
633 ahp->ah_txOkInterruptMask &= ~(1 << q);
634 ahp->ah_txErrInterruptMask &= ~(1 << q);
635 ahp->ah_txDescInterruptMask &= ~(1 << q);
636 ahp->ah_txEolInterruptMask &= ~(1 << q);
637 ahp->ah_txUrnInterruptMask &= ~(1 << q);
638 ath9k_hw_set_txq_interrupts(ah, qi);
639
640 return true;
641}
642
643bool ath9k_hw_resettxqueue(struct ath_hal *ah, u32 q)
644{
645 struct ath_hal_5416 *ahp = AH5416(ah);
646 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
647 struct ath9k_channel *chan = ah->ah_curchan;
648 struct ath9k_tx_queue_info *qi;
649 u32 cwMin, chanCwMin, value;
650
651 if (q >= pCap->total_queues) {
04bd4638 652 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q);
f1dc5600
S		 653 return false;
654 }
655
656 qi = &ahp->ah_txq[q];
657 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
04bd4638 658 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q);
f1dc5600
S		 659 return true;
660 }
661
04bd4638 662 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "reset queue %u\n", q);
f1dc5600
S		 663
664 if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) {
665 if (chan && IS_CHAN_B(chan))
666 chanCwMin = INIT_CWMIN_11B;
667 else
668 chanCwMin = INIT_CWMIN;
669
670 for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1);
671 } else
672 cwMin = qi->tqi_cwmin;
673
674 REG_WRITE(ah, AR_DLCL_IFS(q),
675 SM(cwMin, AR_D_LCL_IFS_CWMIN) |
676 SM(qi->tqi_cwmax, AR_D_LCL_IFS_CWMAX) |
677 SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
678
679 REG_WRITE(ah, AR_DRETRY_LIMIT(q),
680 SM(INIT_SSH_RETRY, AR_D_RETRY_LIMIT_STA_SH) |
681 SM(INIT_SLG_RETRY, AR_D_RETRY_LIMIT_STA_LG) |
682 SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH));
683
684 REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ);
685 REG_WRITE(ah, AR_DMISC(q),
686 AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);
687
688 if (qi->tqi_cbrPeriod) {
689 REG_WRITE(ah, AR_QCBRCFG(q),
690 SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) |
691 SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_OVF_THRESH));
692 REG_WRITE(ah, AR_QMISC(q),
693 REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_FSP_CBR |
694 (qi->tqi_cbrOverflowLimit ?
695 AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0));
696 }
697 if (qi->tqi_readyTime && (qi->tqi_type != ATH9K_TX_QUEUE_CAB)) {
698 REG_WRITE(ah, AR_QRDYTIMECFG(q),
699 SM(qi->tqi_readyTime, AR_Q_RDYTIMECFG_DURATION) |
700 AR_Q_RDYTIMECFG_EN);
701 }
702
703 REG_WRITE(ah, AR_DCHNTIME(q),
704 SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) |
705 (qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0));
706
707 if (qi->tqi_burstTime
708 && (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)) {
709 REG_WRITE(ah, AR_QMISC(q),
710 REG_READ(ah, AR_QMISC(q)) |
711 AR_Q_MISC_RDYTIME_EXP_POLICY);
712
713 }
714
715 if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE) {
716 REG_WRITE(ah, AR_DMISC(q),
717 REG_READ(ah, AR_DMISC(q)) |
718 AR_D_MISC_POST_FR_BKOFF_DIS);
719 }
720 if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
721 REG_WRITE(ah, AR_DMISC(q),
722 REG_READ(ah, AR_DMISC(q)) |
723 AR_D_MISC_FRAG_BKOFF_EN);
724 }
725 switch (qi->tqi_type) {
726 case ATH9K_TX_QUEUE_BEACON:
727 REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))
728 | AR_Q_MISC_FSP_DBA_GATED
729 | AR_Q_MISC_BEACON_USE
730 | AR_Q_MISC_CBR_INCR_DIS1);
731
732 REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q))
733 | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
734 AR_D_MISC_ARB_LOCKOUT_CNTRL_S)
735 | AR_D_MISC_BEACON_USE
736 | AR_D_MISC_POST_FR_BKOFF_DIS);
737 break;
738 case ATH9K_TX_QUEUE_CAB:
739 REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))
740 | AR_Q_MISC_FSP_DBA_GATED
741 | AR_Q_MISC_CBR_INCR_DIS1
742 | AR_Q_MISC_CBR_INCR_DIS0);
743 value = (qi->tqi_readyTime -
744 (ah->ah_config.sw_beacon_response_time -
745 ah->ah_config.dma_beacon_response_time) -
746 ah->ah_config.additional_swba_backoff) * 1024;
747 REG_WRITE(ah, AR_QRDYTIMECFG(q),
748 value | AR_Q_RDYTIMECFG_EN);
749 REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q))
750 | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
751 AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
752 break;
753 case ATH9K_TX_QUEUE_PSPOLL:
754 REG_WRITE(ah, AR_QMISC(q),
755 REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_CBR_INCR_DIS1);
756 break;
757 case ATH9K_TX_QUEUE_UAPSD:
758 REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
759 AR_D_MISC_POST_FR_BKOFF_DIS);
760 break;
761 default:
762 break;
763 }
764
765 if (qi->tqi_intFlags & ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS) {
766 REG_WRITE(ah, AR_DMISC(q),
767 REG_READ(ah, AR_DMISC(q)) |
768 SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL,
769 AR_D_MISC_ARB_LOCKOUT_CNTRL) |
770 AR_D_MISC_POST_FR_BKOFF_DIS);
771 }
772
773 if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE)
774 ahp->ah_txOkInterruptMask |= 1 << q;
775 else
776 ahp->ah_txOkInterruptMask &= ~(1 << q);
777 if (qi->tqi_qflags & TXQ_FLAG_TXERRINT_ENABLE)
778 ahp->ah_txErrInterruptMask |= 1 << q;
779 else
780 ahp->ah_txErrInterruptMask &= ~(1 << q);
781 if (qi->tqi_qflags & TXQ_FLAG_TXDESCINT_ENABLE)
782 ahp->ah_txDescInterruptMask |= 1 << q;
783 else
784 ahp->ah_txDescInterruptMask &= ~(1 << q);
785 if (qi->tqi_qflags & TXQ_FLAG_TXEOLINT_ENABLE)
786 ahp->ah_txEolInterruptMask |= 1 << q;
787 else
788 ahp->ah_txEolInterruptMask &= ~(1 << q);
789 if (qi->tqi_qflags & TXQ_FLAG_TXURNINT_ENABLE)
790 ahp->ah_txUrnInterruptMask |= 1 << q;
791 else
792 ahp->ah_txUrnInterruptMask &= ~(1 << q);
793 ath9k_hw_set_txq_interrupts(ah, qi);
794
795 return true;
796}
797
798int ath9k_hw_rxprocdesc(struct ath_hal *ah, struct ath_desc *ds,
799 u32 pa, struct ath_desc *nds, u64 tsf)
800{
801 struct ar5416_desc ads;
802 struct ar5416_desc *adsp = AR5416DESC(ds);
803 u32 phyerr;
804
805 if ((adsp->ds_rxstatus8 & AR_RxDone) == 0)
806 return -EINPROGRESS;
807
808 ads.u.rx = adsp->u.rx;
809
810 ds->ds_rxstat.rs_status = 0;
811 ds->ds_rxstat.rs_flags = 0;
812
813 ds->ds_rxstat.rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
814 ds->ds_rxstat.rs_tstamp = ads.AR_RcvTimestamp;
815
816 ds->ds_rxstat.rs_rssi = MS(ads.ds_rxstatus4, AR_RxRSSICombined);
817 ds->ds_rxstat.rs_rssi_ctl0 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt00);
818 ds->ds_rxstat.rs_rssi_ctl1 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt01);
819 ds->ds_rxstat.rs_rssi_ctl2 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt02);
820 ds->ds_rxstat.rs_rssi_ext0 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt10);
821 ds->ds_rxstat.rs_rssi_ext1 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt11);
822 ds->ds_rxstat.rs_rssi_ext2 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt12);
823 if (ads.ds_rxstatus8 & AR_RxKeyIdxValid)
824 ds->ds_rxstat.rs_keyix = MS(ads.ds_rxstatus8, AR_KeyIdx);
825 else
826 ds->ds_rxstat.rs_keyix = ATH9K_RXKEYIX_INVALID;
827
828 ds->ds_rxstat.rs_rate = RXSTATUS_RATE(ah, (&ads));
829 ds->ds_rxstat.rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0;
830
831 ds->ds_rxstat.rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0;
832 ds->ds_rxstat.rs_moreaggr =
833 (ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0;
834 ds->ds_rxstat.rs_antenna = MS(ads.ds_rxstatus3, AR_RxAntenna);
835 ds->ds_rxstat.rs_flags =
836 (ads.ds_rxstatus3 & AR_GI) ? ATH9K_RX_GI : 0;
837 ds->ds_rxstat.rs_flags |=
838 (ads.ds_rxstatus3 & AR_2040) ? ATH9K_RX_2040 : 0;
839
840 if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
841 ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
842 if (ads.ds_rxstatus8 & AR_PostDelimCRCErr)
843 ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_POST;
844 if (ads.ds_rxstatus8 & AR_DecryptBusyErr)
845 ds->ds_rxstat.rs_flags |= ATH9K_RX_DECRYPT_BUSY;
846
847 if ((ads.ds_rxstatus8 & AR_RxFrameOK) == 0) {
848 if (ads.ds_rxstatus8 & AR_CRCErr)
849 ds->ds_rxstat.rs_status |= ATH9K_RXERR_CRC;
850 else if (ads.ds_rxstatus8 & AR_PHYErr) {
851 ds->ds_rxstat.rs_status |= ATH9K_RXERR_PHY;
852 phyerr = MS(ads.ds_rxstatus8, AR_PHYErrCode);
853 ds->ds_rxstat.rs_phyerr = phyerr;
854 } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
855 ds->ds_rxstat.rs_status |= ATH9K_RXERR_DECRYPT;
856 else if (ads.ds_rxstatus8 & AR_MichaelErr)
857 ds->ds_rxstat.rs_status |= ATH9K_RXERR_MIC;
858 }
859
860 return 0;
861}
862
863bool ath9k_hw_setuprxdesc(struct ath_hal *ah, struct ath_desc *ds,
864 u32 size, u32 flags)
865{
866 struct ar5416_desc *ads = AR5416DESC(ds);
867 struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
868
869 ads->ds_ctl1 = size & AR_BufLen;
870 if (flags & ATH9K_RXDESC_INTREQ)
871 ads->ds_ctl1 |= AR_RxIntrReq;
872
873 ads->ds_rxstatus8 &= ~AR_RxDone;
874 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
875 memset(&(ads->u), 0, sizeof(ads->u));
876
877 return true;
878}
879
880bool ath9k_hw_setrxabort(struct ath_hal *ah, bool set)
881{
882 u32 reg;
883
884 if (set) {
885 REG_SET_BIT(ah, AR_DIAG_SW,
886 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
887
888 if (!ath9k_hw_wait(ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE, 0)) {
889 REG_CLR_BIT(ah, AR_DIAG_SW,
890 (AR_DIAG_RX_DIS |
891 AR_DIAG_RX_ABORT));
892
893 reg = REG_READ(ah, AR_OBS_BUS_1);
894 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
04bd4638 895 "rx failed to go idle in 10 ms RXSM=0x%x\n", reg);
f1dc5600
S		 896
897 return false;
898 }
899 } else {
900 REG_CLR_BIT(ah, AR_DIAG_SW,
901 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
902 }
903
904 return true;
905}
906
907void ath9k_hw_putrxbuf(struct ath_hal *ah, u32 rxdp)
908{
909 REG_WRITE(ah, AR_RXDP, rxdp);
910}
911
912void ath9k_hw_rxena(struct ath_hal *ah)
913{
914 REG_WRITE(ah, AR_CR, AR_CR_RXE);
915}
916
917void ath9k_hw_startpcureceive(struct ath_hal *ah)
918{
919 REG_CLR_BIT(ah, AR_DIAG_SW,
920 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
921
922 ath9k_enable_mib_counters(ah);
923
924 ath9k_ani_reset(ah);
925}
926
927void ath9k_hw_stoppcurecv(struct ath_hal *ah)
928{
929 REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
930
931 ath9k_hw_disable_mib_counters(ah);
932}
933
934bool ath9k_hw_stopdmarecv(struct ath_hal *ah)
935{
936 REG_WRITE(ah, AR_CR, AR_CR_RXD);
937
938 if (!ath9k_hw_wait(ah, AR_CR, AR_CR_RXE, 0)) {
939 DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
04bd4638 940 "dma failed to stop in 10ms\n"
f1dc5600 941 "AR_CR=0x%08x\nAR_DIAG_SW=0x%08x\n",
f1dc5600
S		 942 REG_READ(ah, AR_CR), REG_READ(ah, AR_DIAG_SW));
943 return false;
944 } else {
945 return true;
946 }
947}
Linux 6.x block layer and io_uring tree(s)