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Merge branch 'for-linus' into for-next
[deliverable/linux.git] / drivers / net / wireless / ath / ath9k / mac.c
CommitLineData
f1dc5600 1/*
5b68138e 2 * Copyright (c) 2008-2011 Atheros Communications Inc.
f1dc5600
S		 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
990b70ab 17#include "hw.h"
ac0bb767 18#include "hw-ops.h"
ee40fa06 19#include <linux/export.h>
f1dc5600 20
cc610ac0
VT		 21static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah,
22 struct ath9k_tx_queue_info *qi)
23{
d2182b69 24 ath_dbg(ath9k_hw_common(ah), INTERRUPT,
226afe68
JP		 25 "tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n",
26 ah->txok_interrupt_mask, ah->txerr_interrupt_mask,
27 ah->txdesc_interrupt_mask, ah->txeol_interrupt_mask,
28 ah->txurn_interrupt_mask);
cc610ac0 29
7d0d0df0
S		 30 ENABLE_REGWRITE_BUFFER(ah);
31
cc610ac0
VT		 32 REG_WRITE(ah, AR_IMR_S0,
33 SM(ah->txok_interrupt_mask, AR_IMR_S0_QCU_TXOK)
34 | SM(ah->txdesc_interrupt_mask, AR_IMR_S0_QCU_TXDESC));
35 REG_WRITE(ah, AR_IMR_S1,
36 SM(ah->txerr_interrupt_mask, AR_IMR_S1_QCU_TXERR)
37 | SM(ah->txeol_interrupt_mask, AR_IMR_S1_QCU_TXEOL));
38
39 ah->imrs2_reg &= ~AR_IMR_S2_QCU_TXURN;
40 ah->imrs2_reg |= (ah->txurn_interrupt_mask & AR_IMR_S2_QCU_TXURN);
41 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
7d0d0df0
S		 42
43 REGWRITE_BUFFER_FLUSH(ah);
cc610ac0
VT		 44}
45
46u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q)
47{
48 return REG_READ(ah, AR_QTXDP(q));
49}
50EXPORT_SYMBOL(ath9k_hw_gettxbuf);
51
52void ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp)
53{
54 REG_WRITE(ah, AR_QTXDP(q), txdp);
55}
56EXPORT_SYMBOL(ath9k_hw_puttxbuf);
57
58void ath9k_hw_txstart(struct ath_hw *ah, u32 q)
59{
d2182b69 60 ath_dbg(ath9k_hw_common(ah), QUEUE, "Enable TXE on queue: %u\n", q);
cc610ac0
VT		 61 REG_WRITE(ah, AR_Q_TXE, 1 << q);
62}
63EXPORT_SYMBOL(ath9k_hw_txstart);
64
cc610ac0
VT		 65u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q)
66{
67 u32 npend;
68
69 npend = REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT;
70 if (npend == 0) {
71
72 if (REG_READ(ah, AR_Q_TXE) & (1 << q))
73 npend = 1;
74 }
75
76 return npend;
77}
78EXPORT_SYMBOL(ath9k_hw_numtxpending);
79
80/**
81 * ath9k_hw_updatetxtriglevel - adjusts the frame trigger level
82 *
83 * @ah: atheros hardware struct
84 * @bIncTrigLevel: whether or not the frame trigger level should be updated
85 *
86 * The frame trigger level specifies the minimum number of bytes,
87 * in units of 64 bytes, that must be DMA'ed into the PCU TX FIFO
88 * before the PCU will initiate sending the frame on the air. This can
89 * mean we initiate transmit before a full frame is on the PCU TX FIFO.
90 * Resets to 0x1 (meaning 64 bytes or a full frame, whichever occurs
91 * first)
92 *
93 * Caution must be taken to ensure to set the frame trigger level based
94 * on the DMA request size. For example if the DMA request size is set to
95 * 128 bytes the trigger level cannot exceed 6 * 64 = 384. This is because
96 * there need to be enough space in the tx FIFO for the requested transfer
97 * size. Hence the tx FIFO will stop with 512 - 128 = 384 bytes. If we set
98 * the threshold to a value beyond 6, then the transmit will hang.
99 *
100 * Current dual stream devices have a PCU TX FIFO size of 8 KB.
101 * Current single stream devices have a PCU TX FIFO size of 4 KB, however,
102 * there is a hardware issue which forces us to use 2 KB instead so the
103 * frame trigger level must not exceed 2 KB for these chipsets.
104 */
105bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel)
106{
107 u32 txcfg, curLevel, newLevel;
cc610ac0
VT		 108
109 if (ah->tx_trig_level >= ah->config.max_txtrig_level)
110 return false;
111
4df3071e 112 ath9k_hw_disable_interrupts(ah);
cc610ac0
VT		 113
114 txcfg = REG_READ(ah, AR_TXCFG);
115 curLevel = MS(txcfg, AR_FTRIG);
116 newLevel = curLevel;
117 if (bIncTrigLevel) {
118 if (curLevel < ah->config.max_txtrig_level)
119 newLevel++;
120 } else if (curLevel > MIN_TX_FIFO_THRESHOLD)
121 newLevel--;
122 if (newLevel != curLevel)
123 REG_WRITE(ah, AR_TXCFG,
124 (txcfg & ~AR_FTRIG) | SM(newLevel, AR_FTRIG));
125
4df3071e 126 ath9k_hw_enable_interrupts(ah);
cc610ac0
VT		 127
128 ah->tx_trig_level = newLevel;
129
130 return newLevel != curLevel;
131}
132EXPORT_SYMBOL(ath9k_hw_updatetxtriglevel);
133
0d51cccc 134void ath9k_hw_abort_tx_dma(struct ath_hw *ah)
cc610ac0 135{
8d1bd2af 136 int maxdelay = 1000;
0d51cccc 137 int i, q;
cc610ac0 138
8d1bd2af
FF		 139 if (ah->curchan) {
140 if (IS_CHAN_HALF_RATE(ah->curchan))
141 maxdelay *= 2;
142 else if (IS_CHAN_QUARTER_RATE(ah->curchan))
143 maxdelay *= 4;
144 }
145
0d51cccc 146 REG_WRITE(ah, AR_Q_TXD, AR_Q_TXD_M);
cc610ac0 147
0d51cccc
FF		 148 REG_SET_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
149 REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
150 REG_SET_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
cc610ac0 151
0d51cccc 152 for (q = 0; q < AR_NUM_QCU; q++) {
8d1bd2af 153 for (i = 0; i < maxdelay; i++) {
0d51cccc
FF		 154 if (i)
155 udelay(5);
cc610ac0 156
0d51cccc 157 if (!ath9k_hw_numtxpending(ah, q))
cc610ac0 158 break;
cc610ac0 159 }
0d51cccc 160 }
cc610ac0 161
0d51cccc
FF		 162 REG_CLR_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
163 REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
164 REG_CLR_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
cc610ac0 165
0d51cccc
FF		 166 REG_WRITE(ah, AR_Q_TXD, 0);
167}
168EXPORT_SYMBOL(ath9k_hw_abort_tx_dma);
cc610ac0 169
efff395e 170bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q)
cc610ac0 171{
efff395e 172#define ATH9K_TX_STOP_DMA_TIMEOUT 1000 /* usec */
cc610ac0 173#define ATH9K_TIME_QUANTUM 100 /* usec */
efff395e
FF		 174 int wait_time = ATH9K_TX_STOP_DMA_TIMEOUT / ATH9K_TIME_QUANTUM;
175 int wait;
cc610ac0
VT		 176
177 REG_WRITE(ah, AR_Q_TXD, 1 << q);
178
179 for (wait = wait_time; wait != 0; wait--) {
efff395e 180 if (wait != wait_time)
cc610ac0 181 udelay(ATH9K_TIME_QUANTUM);
cc610ac0 182
efff395e
FF		 183 if (ath9k_hw_numtxpending(ah, q) == 0)
184 break;
cc610ac0
VT		 185 }
186
187 REG_WRITE(ah, AR_Q_TXD, 0);
efff395e 188
cc610ac0
VT		 189 return wait != 0;
190
191#undef ATH9K_TX_STOP_DMA_TIMEOUT
192#undef ATH9K_TIME_QUANTUM
193}
efff395e 194EXPORT_SYMBOL(ath9k_hw_stop_dma_queue);
cc610ac0 195
cbe61d8a 196bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q,
f1dc5600
S		 197 const struct ath9k_tx_queue_info *qinfo)
198{
199 u32 cw;
c46917bb 200 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600
S		 201 struct ath9k_tx_queue_info *qi;
202
2660b81a 203 qi = &ah->txq[q];
f1dc5600 204 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
d2182b69 205 ath_dbg(common, QUEUE,
226afe68 206 "Set TXQ properties, inactive queue: %u\n", q);
f1dc5600
S		 207 return false;
208 }
209
d2182b69 210 ath_dbg(common, QUEUE, "Set queue properties for: %u\n", q);
f1dc5600
S		 211
212 qi->tqi_ver = qinfo->tqi_ver;
213 qi->tqi_subtype = qinfo->tqi_subtype;
214 qi->tqi_qflags = qinfo->tqi_qflags;
215 qi->tqi_priority = qinfo->tqi_priority;
216 if (qinfo->tqi_aifs != ATH9K_TXQ_USEDEFAULT)
217 qi->tqi_aifs = min(qinfo->tqi_aifs, 255U);
218 else
219 qi->tqi_aifs = INIT_AIFS;
220 if (qinfo->tqi_cwmin != ATH9K_TXQ_USEDEFAULT) {
221 cw = min(qinfo->tqi_cwmin, 1024U);
222 qi->tqi_cwmin = 1;
223 while (qi->tqi_cwmin < cw)
224 qi->tqi_cwmin = (qi->tqi_cwmin << 1) | 1;
225 } else
226 qi->tqi_cwmin = qinfo->tqi_cwmin;
227 if (qinfo->tqi_cwmax != ATH9K_TXQ_USEDEFAULT) {
228 cw = min(qinfo->tqi_cwmax, 1024U);
229 qi->tqi_cwmax = 1;
230 while (qi->tqi_cwmax < cw)
231 qi->tqi_cwmax = (qi->tqi_cwmax << 1) | 1;
232 } else
233 qi->tqi_cwmax = INIT_CWMAX;
234
235 if (qinfo->tqi_shretry != 0)
236 qi->tqi_shretry = min((u32) qinfo->tqi_shretry, 15U);
237 else
238 qi->tqi_shretry = INIT_SH_RETRY;
239 if (qinfo->tqi_lgretry != 0)
240 qi->tqi_lgretry = min((u32) qinfo->tqi_lgretry, 15U);
241 else
242 qi->tqi_lgretry = INIT_LG_RETRY;
243 qi->tqi_cbrPeriod = qinfo->tqi_cbrPeriod;
244 qi->tqi_cbrOverflowLimit = qinfo->tqi_cbrOverflowLimit;
245 qi->tqi_burstTime = qinfo->tqi_burstTime;
246 qi->tqi_readyTime = qinfo->tqi_readyTime;
247
248 switch (qinfo->tqi_subtype) {
249 case ATH9K_WME_UPSD:
250 if (qi->tqi_type == ATH9K_TX_QUEUE_DATA)
251 qi->tqi_intFlags = ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS;
252 break;
253 default:
254 break;
255 }
256
257 return true;
258}
7322fd19 259EXPORT_SYMBOL(ath9k_hw_set_txq_props);
f1dc5600 260
cbe61d8a 261bool ath9k_hw_get_txq_props(struct ath_hw *ah, int q,
f1dc5600
S		 262 struct ath9k_tx_queue_info *qinfo)
263{
c46917bb 264 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600
S		 265 struct ath9k_tx_queue_info *qi;
266
2660b81a 267 qi = &ah->txq[q];
f1dc5600 268 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
d2182b69 269 ath_dbg(common, QUEUE,
226afe68 270 "Get TXQ properties, inactive queue: %u\n", q);
f1dc5600
S		 271 return false;
272 }
273
274 qinfo->tqi_qflags = qi->tqi_qflags;
275 qinfo->tqi_ver = qi->tqi_ver;
276 qinfo->tqi_subtype = qi->tqi_subtype;
277 qinfo->tqi_qflags = qi->tqi_qflags;
278 qinfo->tqi_priority = qi->tqi_priority;
279 qinfo->tqi_aifs = qi->tqi_aifs;
280 qinfo->tqi_cwmin = qi->tqi_cwmin;
281 qinfo->tqi_cwmax = qi->tqi_cwmax;
282 qinfo->tqi_shretry = qi->tqi_shretry;
283 qinfo->tqi_lgretry = qi->tqi_lgretry;
284 qinfo->tqi_cbrPeriod = qi->tqi_cbrPeriod;
285 qinfo->tqi_cbrOverflowLimit = qi->tqi_cbrOverflowLimit;
286 qinfo->tqi_burstTime = qi->tqi_burstTime;
287 qinfo->tqi_readyTime = qi->tqi_readyTime;
288
289 return true;
290}
7322fd19 291EXPORT_SYMBOL(ath9k_hw_get_txq_props);
f1dc5600 292
cbe61d8a 293int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type,
f1dc5600
S		 294 const struct ath9k_tx_queue_info *qinfo)
295{
c46917bb 296 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600 297 struct ath9k_tx_queue_info *qi;
f1dc5600
S		 298 int q;
299
300 switch (type) {
301 case ATH9K_TX_QUEUE_BEACON:
f4c607dc 302 q = ATH9K_NUM_TX_QUEUES - 1;
f1dc5600
S		 303 break;
304 case ATH9K_TX_QUEUE_CAB:
f4c607dc 305 q = ATH9K_NUM_TX_QUEUES - 2;
f1dc5600
S		 306 break;
307 case ATH9K_TX_QUEUE_PSPOLL:
308 q = 1;
309 break;
310 case ATH9K_TX_QUEUE_UAPSD:
f4c607dc 311 q = ATH9K_NUM_TX_QUEUES - 3;
f1dc5600
S		 312 break;
313 case ATH9K_TX_QUEUE_DATA:
f4c607dc 314 for (q = 0; q < ATH9K_NUM_TX_QUEUES; q++)
2660b81a 315 if (ah->txq[q].tqi_type ==
f1dc5600
S		 316 ATH9K_TX_QUEUE_INACTIVE)
317 break;
f4c607dc 318 if (q == ATH9K_NUM_TX_QUEUES) {
3800276a 319 ath_err(common, "No available TX queue\n");
f1dc5600
S		 320 return -1;
321 }
322 break;
323 default:
3800276a 324 ath_err(common, "Invalid TX queue type: %u\n", type);
f1dc5600
S		 325 return -1;
326 }
327
d2182b69 328 ath_dbg(common, QUEUE, "Setup TX queue: %u\n", q);
f1dc5600 329
2660b81a 330 qi = &ah->txq[q];
f1dc5600 331 if (qi->tqi_type != ATH9K_TX_QUEUE_INACTIVE) {
3800276a 332 ath_err(common, "TX queue: %u already active\n", q);
f1dc5600
S		 333 return -1;
334 }
335 memset(qi, 0, sizeof(struct ath9k_tx_queue_info));
336 qi->tqi_type = type;
479c6892
RM		 337 qi->tqi_physCompBuf = qinfo->tqi_physCompBuf;
338 (void) ath9k_hw_set_txq_props(ah, q, qinfo);
f1dc5600
S		 339
340 return q;
341}
7322fd19 342EXPORT_SYMBOL(ath9k_hw_setuptxqueue);
f1dc5600 343
7e03072e
FF		 344static void ath9k_hw_clear_queue_interrupts(struct ath_hw *ah, u32 q)
345{
346 ah->txok_interrupt_mask &= ~(1 << q);
347 ah->txerr_interrupt_mask &= ~(1 << q);
348 ah->txdesc_interrupt_mask &= ~(1 << q);
349 ah->txeol_interrupt_mask &= ~(1 << q);
350 ah->txurn_interrupt_mask &= ~(1 << q);
351}
352
cbe61d8a 353bool ath9k_hw_releasetxqueue(struct ath_hw *ah, u32 q)
f1dc5600 354{
c46917bb 355 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600
S		 356 struct ath9k_tx_queue_info *qi;
357
2660b81a 358 qi = &ah->txq[q];
f1dc5600 359 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
d2182b69 360 ath_dbg(common, QUEUE, "Release TXQ, inactive queue: %u\n", q);
f1dc5600
S		 361 return false;
362 }
363
d2182b69 364 ath_dbg(common, QUEUE, "Release TX queue: %u\n", q);
f1dc5600
S		 365
366 qi->tqi_type = ATH9K_TX_QUEUE_INACTIVE;
7e03072e 367 ath9k_hw_clear_queue_interrupts(ah, q);
f1dc5600
S		 368 ath9k_hw_set_txq_interrupts(ah, qi);
369
370 return true;
371}
7322fd19 372EXPORT_SYMBOL(ath9k_hw_releasetxqueue);
f1dc5600 373
cbe61d8a 374bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
f1dc5600 375{
c46917bb 376 struct ath_common *common = ath9k_hw_common(ah);
2660b81a 377 struct ath9k_channel *chan = ah->curchan;
f1dc5600
S		 378 struct ath9k_tx_queue_info *qi;
379 u32 cwMin, chanCwMin, value;
380
2660b81a 381 qi = &ah->txq[q];
f1dc5600 382 if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
d2182b69 383 ath_dbg(common, QUEUE, "Reset TXQ, inactive queue: %u\n", q);
f1dc5600
S		 384 return true;
385 }
386
d2182b69 387 ath_dbg(common, QUEUE, "Reset TX queue: %u\n", q);
f1dc5600
S		 388
389 if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) {
390 if (chan && IS_CHAN_B(chan))
391 chanCwMin = INIT_CWMIN_11B;
392 else
393 chanCwMin = INIT_CWMIN;
394
395 for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1);
396 } else
397 cwMin = qi->tqi_cwmin;
398
7d0d0df0
S		 399 ENABLE_REGWRITE_BUFFER(ah);
400
f1dc5600
S		 401 REG_WRITE(ah, AR_DLCL_IFS(q),
402 SM(cwMin, AR_D_LCL_IFS_CWMIN) |
403 SM(qi->tqi_cwmax, AR_D_LCL_IFS_CWMAX) |
404 SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
405
406 REG_WRITE(ah, AR_DRETRY_LIMIT(q),
407 SM(INIT_SSH_RETRY, AR_D_RETRY_LIMIT_STA_SH) |
408 SM(INIT_SLG_RETRY, AR_D_RETRY_LIMIT_STA_LG) |
409 SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH));
410
411 REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ);
94333f59
RM		 412
413 if (AR_SREV_9340(ah))
414 REG_WRITE(ah, AR_DMISC(q),
415 AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x1);
416 else
417 REG_WRITE(ah, AR_DMISC(q),
418 AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);
f1dc5600
S		 419
420 if (qi->tqi_cbrPeriod) {
421 REG_WRITE(ah, AR_QCBRCFG(q),
422 SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) |
423 SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_OVF_THRESH));
ca7a4deb
FF		 424 REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_FSP_CBR |
425 (qi->tqi_cbrOverflowLimit ?
426 AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0));
f1dc5600
S		 427 }
428 if (qi->tqi_readyTime && (qi->tqi_type != ATH9K_TX_QUEUE_CAB)) {
429 REG_WRITE(ah, AR_QRDYTIMECFG(q),
430 SM(qi->tqi_readyTime, AR_Q_RDYTIMECFG_DURATION) |
431 AR_Q_RDYTIMECFG_EN);
432 }
433
434 REG_WRITE(ah, AR_DCHNTIME(q),
435 SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) |
436 (qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0));
437
438 if (qi->tqi_burstTime
ca7a4deb
FF		 439 && (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE))
440 REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_RDYTIME_EXP_POLICY);
f1dc5600 441
ca7a4deb
FF		 442 if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE)
443 REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_POST_FR_BKOFF_DIS);
7d0d0df0
S		 444
445 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 446
ca7a4deb
FF		 447 if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE)
448 REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_FRAG_BKOFF_EN);
449
f1dc5600
S		 450 switch (qi->tqi_type) {
451 case ATH9K_TX_QUEUE_BEACON:
7d0d0df0
S		 452 ENABLE_REGWRITE_BUFFER(ah);
453
ca7a4deb
FF		 454 REG_SET_BIT(ah, AR_QMISC(q),
455 AR_Q_MISC_FSP_DBA_GATED
456 | AR_Q_MISC_BEACON_USE
457 | AR_Q_MISC_CBR_INCR_DIS1);
f1dc5600 458
ca7a4deb
FF		 459 REG_SET_BIT(ah, AR_DMISC(q),
460 (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
f1dc5600 461 AR_D_MISC_ARB_LOCKOUT_CNTRL_S)
ca7a4deb
FF		 462 | AR_D_MISC_BEACON_USE
463 | AR_D_MISC_POST_FR_BKOFF_DIS);
7d0d0df0
S		 464
465 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 466
9a2af889
LR		 467 /*
468 * cwmin and cwmax should be 0 for beacon queue
469 * but not for IBSS as we would create an imbalance
470 * on beaconing fairness for participating nodes.
471 */
472 if (AR_SREV_9300_20_OR_LATER(ah) &&
473 ah->opmode != NL80211_IFTYPE_ADHOC) {
3deb4da5
LR		 474 REG_WRITE(ah, AR_DLCL_IFS(q), SM(0, AR_D_LCL_IFS_CWMIN)
475 | SM(0, AR_D_LCL_IFS_CWMAX)
476 | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
477 }
f1dc5600
S		 478 break;
479 case ATH9K_TX_QUEUE_CAB:
7d0d0df0
S		 480 ENABLE_REGWRITE_BUFFER(ah);
481
ca7a4deb
FF		 482 REG_SET_BIT(ah, AR_QMISC(q),
483 AR_Q_MISC_FSP_DBA_GATED
484 | AR_Q_MISC_CBR_INCR_DIS1
485 | AR_Q_MISC_CBR_INCR_DIS0);
f1dc5600 486 value = (qi->tqi_readyTime -
2660b81a
S		 487 (ah->config.sw_beacon_response_time -
488 ah->config.dma_beacon_response_time) -
489 ah->config.additional_swba_backoff) * 1024;
f1dc5600
S		 490 REG_WRITE(ah, AR_QRDYTIMECFG(q),
491 value | AR_Q_RDYTIMECFG_EN);
ca7a4deb
FF		 492 REG_SET_BIT(ah, AR_DMISC(q),
493 (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
f1dc5600 494 AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
7d0d0df0
S		 495
496 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 497
f1dc5600
S		 498 break;
499 case ATH9K_TX_QUEUE_PSPOLL:
ca7a4deb 500 REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_CBR_INCR_DIS1);
f1dc5600
S		 501 break;
502 case ATH9K_TX_QUEUE_UAPSD:
ca7a4deb 503 REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_POST_FR_BKOFF_DIS);
f1dc5600
S		 504 break;
505 default:
506 break;
507 }
508
509 if (qi->tqi_intFlags & ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS) {
ca7a4deb
FF		 510 REG_SET_BIT(ah, AR_DMISC(q),
511 SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL,
512 AR_D_MISC_ARB_LOCKOUT_CNTRL) |
513 AR_D_MISC_POST_FR_BKOFF_DIS);
f1dc5600
S		 514 }
515
79de2375
LR		 516 if (AR_SREV_9300_20_OR_LATER(ah))
517 REG_WRITE(ah, AR_Q_DESC_CRCCHK, AR_Q_DESC_CRCCHK_EN);
518
7e03072e 519 ath9k_hw_clear_queue_interrupts(ah, q);
ce8fdf6e 520 if (qi->tqi_qflags & TXQ_FLAG_TXINT_ENABLE) {
2660b81a 521 ah->txok_interrupt_mask |= 1 << q;
2660b81a 522 ah->txerr_interrupt_mask |= 1 << q;
ce8fdf6e 523 }
f1dc5600 524 if (qi->tqi_qflags & TXQ_FLAG_TXDESCINT_ENABLE)
2660b81a 525 ah->txdesc_interrupt_mask |= 1 << q;
f1dc5600 526 if (qi->tqi_qflags & TXQ_FLAG_TXEOLINT_ENABLE)
2660b81a 527 ah->txeol_interrupt_mask |= 1 << q;
f1dc5600 528 if (qi->tqi_qflags & TXQ_FLAG_TXURNINT_ENABLE)
2660b81a 529 ah->txurn_interrupt_mask |= 1 << q;
f1dc5600
S		 530 ath9k_hw_set_txq_interrupts(ah, qi);
531
532 return true;
533}
7322fd19 534EXPORT_SYMBOL(ath9k_hw_resettxqueue);
f1dc5600 535
cbe61d8a 536int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
3de21116 537 struct ath_rx_status *rs)
f1dc5600
S		 538{
539 struct ar5416_desc ads;
540 struct ar5416_desc *adsp = AR5416DESC(ds);
541 u32 phyerr;
542
543 if ((adsp->ds_rxstatus8 & AR_RxDone) == 0)
544 return -EINPROGRESS;
545
546 ads.u.rx = adsp->u.rx;
547
8e6f5aa2
FF		 548 rs->rs_status = 0;
549 rs->rs_flags = 0;
f1dc5600 550
8e6f5aa2
FF		 551 rs->rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
552 rs->rs_tstamp = ads.AR_RcvTimestamp;
f1dc5600 553
dd8b15b0 554 if (ads.ds_rxstatus8 & AR_PostDelimCRCErr) {
8e6f5aa2
FF		 555 rs->rs_rssi = ATH9K_RSSI_BAD;
556 rs->rs_rssi_ctl0 = ATH9K_RSSI_BAD;
557 rs->rs_rssi_ctl1 = ATH9K_RSSI_BAD;
558 rs->rs_rssi_ctl2 = ATH9K_RSSI_BAD;
559 rs->rs_rssi_ext0 = ATH9K_RSSI_BAD;
560 rs->rs_rssi_ext1 = ATH9K_RSSI_BAD;
561 rs->rs_rssi_ext2 = ATH9K_RSSI_BAD;
dd8b15b0 562 } else {
8e6f5aa2
FF		 563 rs->rs_rssi = MS(ads.ds_rxstatus4, AR_RxRSSICombined);
564 rs->rs_rssi_ctl0 = MS(ads.ds_rxstatus0,
dd8b15b0 565 AR_RxRSSIAnt00);
8e6f5aa2 566 rs->rs_rssi_ctl1 = MS(ads.ds_rxstatus0,
dd8b15b0 567 AR_RxRSSIAnt01);
8e6f5aa2 568 rs->rs_rssi_ctl2 = MS(ads.ds_rxstatus0,
dd8b15b0 569 AR_RxRSSIAnt02);
8e6f5aa2 570 rs->rs_rssi_ext0 = MS(ads.ds_rxstatus4,
dd8b15b0 571 AR_RxRSSIAnt10);
8e6f5aa2 572 rs->rs_rssi_ext1 = MS(ads.ds_rxstatus4,
dd8b15b0 573 AR_RxRSSIAnt11);
8e6f5aa2 574 rs->rs_rssi_ext2 = MS(ads.ds_rxstatus4,
dd8b15b0
SB		 575 AR_RxRSSIAnt12);
576 }
f1dc5600 577 if (ads.ds_rxstatus8 & AR_RxKeyIdxValid)
8e6f5aa2 578 rs->rs_keyix = MS(ads.ds_rxstatus8, AR_KeyIdx);
f1dc5600 579 else
8e6f5aa2 580 rs->rs_keyix = ATH9K_RXKEYIX_INVALID;
f1dc5600 581
1b8714f7 582 rs->rs_rate = MS(ads.ds_rxstatus0, AR_RxRate);
8e6f5aa2 583 rs->rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0;
f1dc5600 584
8e6f5aa2
FF		 585 rs->rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0;
586 rs->rs_moreaggr =
f1dc5600 587 (ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0;
8e6f5aa2
FF		 588 rs->rs_antenna = MS(ads.ds_rxstatus3, AR_RxAntenna);
589 rs->rs_flags =
f1dc5600 590 (ads.ds_rxstatus3 & AR_GI) ? ATH9K_RX_GI : 0;
8e6f5aa2 591 rs->rs_flags |=
f1dc5600
S		 592 (ads.ds_rxstatus3 & AR_2040) ? ATH9K_RX_2040 : 0;
593
594 if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
8e6f5aa2 595 rs->rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
f1dc5600 596 if (ads.ds_rxstatus8 & AR_PostDelimCRCErr)
8e6f5aa2 597 rs->rs_flags |= ATH9K_RX_DELIM_CRC_POST;
f1dc5600 598 if (ads.ds_rxstatus8 & AR_DecryptBusyErr)
8e6f5aa2 599 rs->rs_flags |= ATH9K_RX_DECRYPT_BUSY;
f1dc5600
S		 600
601 if ((ads.ds_rxstatus8 & AR_RxFrameOK) == 0) {
115dad7a
FF		 602 /*
603 * Treat these errors as mutually exclusive to avoid spurious
604 * extra error reports from the hardware. If a CRC error is
605 * reported, then decryption and MIC errors are irrelevant,
606 * the frame is going to be dropped either way
607 */
f1dc5600 608 if (ads.ds_rxstatus8 & AR_CRCErr)
8e6f5aa2 609 rs->rs_status |= ATH9K_RXERR_CRC;
115dad7a 610 else if (ads.ds_rxstatus8 & AR_PHYErr) {
8e6f5aa2 611 rs->rs_status |= ATH9K_RXERR_PHY;
f1dc5600 612 phyerr = MS(ads.ds_rxstatus8, AR_PHYErrCode);
8e6f5aa2 613 rs->rs_phyerr = phyerr;
115dad7a 614 } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
8e6f5aa2 615 rs->rs_status |= ATH9K_RXERR_DECRYPT;
115dad7a 616 else if (ads.ds_rxstatus8 & AR_MichaelErr)
8e6f5aa2 617 rs->rs_status |= ATH9K_RXERR_MIC;
f1dc5600
S		 618 }
619
7a532fe7
FF		 620 if (ads.ds_rxstatus8 & AR_KeyMiss)
621 rs->rs_status |= ATH9K_RXERR_KEYMISS;
622
f1dc5600
S		 623 return 0;
624}
7322fd19 625EXPORT_SYMBOL(ath9k_hw_rxprocdesc);
f1dc5600 626
e7824a50
LR		 627/*
628 * This can stop or re-enables RX.
629 *
630 * If bool is set this will kill any frame which is currently being
631 * transferred between the MAC and baseband and also prevent any new
632 * frames from getting started.
633 */
cbe61d8a 634bool ath9k_hw_setrxabort(struct ath_hw *ah, bool set)
f1dc5600
S		 635{
636 u32 reg;
637
638 if (set) {
639 REG_SET_BIT(ah, AR_DIAG_SW,
640 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
641
0caa7b14
S		 642 if (!ath9k_hw_wait(ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE,
643 0, AH_WAIT_TIMEOUT)) {
f1dc5600
S		 644 REG_CLR_BIT(ah, AR_DIAG_SW,
645 (AR_DIAG_RX_DIS |
646 AR_DIAG_RX_ABORT));
647
648 reg = REG_READ(ah, AR_OBS_BUS_1);
3800276a
JP		 649 ath_err(ath9k_hw_common(ah),
650 "RX failed to go idle in 10 ms RXSM=0x%x\n",
651 reg);
f1dc5600
S		 652
653 return false;
654 }
655 } else {
656 REG_CLR_BIT(ah, AR_DIAG_SW,
657 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
658 }
659
660 return true;
661}
7322fd19 662EXPORT_SYMBOL(ath9k_hw_setrxabort);
f1dc5600 663
cbe61d8a 664void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp)
f1dc5600
S		 665{
666 REG_WRITE(ah, AR_RXDP, rxdp);
667}
7322fd19 668EXPORT_SYMBOL(ath9k_hw_putrxbuf);
f1dc5600 669
40346b66 670void ath9k_hw_startpcureceive(struct ath_hw *ah, bool is_scanning)
f1dc5600 671{
f1dc5600
S		 672 ath9k_enable_mib_counters(ah);
673
40346b66 674 ath9k_ani_reset(ah, is_scanning);
e7594072 675
8aa15e15 676 REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
f1dc5600 677}
7322fd19 678EXPORT_SYMBOL(ath9k_hw_startpcureceive);
f1dc5600 679
9b9cc61c
VT		 680void ath9k_hw_abortpcurecv(struct ath_hw *ah)
681{
682 REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_ABORT | AR_DIAG_RX_DIS);
683
684 ath9k_hw_disable_mib_counters(ah);
685}
686EXPORT_SYMBOL(ath9k_hw_abortpcurecv);
687
5882da02 688bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
f1dc5600 689{
0caa7b14 690#define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */
c46917bb 691 struct ath_common *common = ath9k_hw_common(ah);
5882da02 692 u32 mac_status, last_mac_status = 0;
0caa7b14
S		 693 int i;
694
5882da02
FF		 695 /* Enable access to the DMA observation bus */
696 REG_WRITE(ah, AR_MACMISC,
697 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
698 (AR_MACMISC_MISC_OBS_BUS_1 <<
699 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
700
f1dc5600
S		 701 REG_WRITE(ah, AR_CR, AR_CR_RXD);
702
0caa7b14
S		 703 /* Wait for rx enable bit to go low */
704 for (i = AH_RX_STOP_DMA_TIMEOUT / AH_TIME_QUANTUM; i != 0; i--) {
705 if ((REG_READ(ah, AR_CR) & AR_CR_RXE) == 0)
706 break;
5882da02
FF		 707
708 if (!AR_SREV_9300_20_OR_LATER(ah)) {
709 mac_status = REG_READ(ah, AR_DMADBG_7) & 0x7f0;
710 if (mac_status == 0x1c0 && mac_status == last_mac_status) {
711 *reset = true;
712 break;
713 }
714
715 last_mac_status = mac_status;
716 }
717
0caa7b14
S		 718 udelay(AH_TIME_QUANTUM);
719 }
720
721 if (i == 0) {
3800276a 722 ath_err(common,
5882da02 723 "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",
3800276a
JP		 724 AH_RX_STOP_DMA_TIMEOUT / 1000,
725 REG_READ(ah, AR_CR),
5882da02
FF		 726 REG_READ(ah, AR_DIAG_SW),
727 REG_READ(ah, AR_DMADBG_7));
f1dc5600
S		 728 return false;
729 } else {
730 return true;
731 }
0caa7b14 732
0caa7b14 733#undef AH_RX_STOP_DMA_TIMEOUT
f1dc5600 734}
7322fd19 735EXPORT_SYMBOL(ath9k_hw_stopdmarecv);
536b3a7a
LR		 736
737int ath9k_hw_beaconq_setup(struct ath_hw *ah)
738{
739 struct ath9k_tx_queue_info qi;
740
741 memset(&qi, 0, sizeof(qi));
742 qi.tqi_aifs = 1;
743 qi.tqi_cwmin = 0;
744 qi.tqi_cwmax = 0;
627e67a6
FF		 745
746 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
ce8fdf6e 747 qi.tqi_qflags = TXQ_FLAG_TXINT_ENABLE;
627e67a6 748
536b3a7a
LR		 749 return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
750}
751EXPORT_SYMBOL(ath9k_hw_beaconq_setup);
55e82df4
VT		 752
753bool ath9k_hw_intrpend(struct ath_hw *ah)
754{
755 u32 host_isr;
756
757 if (AR_SREV_9100(ah))
758 return true;
759
760 host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
e3584813
MSS		 761
762 if (((host_isr & AR_INTR_MAC_IRQ) ||
763 (host_isr & AR_INTR_ASYNC_MASK_MCI)) &&
764 (host_isr != AR_INTR_SPURIOUS))
55e82df4
VT		 765 return true;
766
767 host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);
768 if ((host_isr & AR_INTR_SYNC_DEFAULT)
769 && (host_isr != AR_INTR_SPURIOUS))
770 return true;
771
772 return false;
773}
774EXPORT_SYMBOL(ath9k_hw_intrpend);
775
f41a9b3b 776void ath9k_hw_kill_interrupts(struct ath_hw *ah)
4df3071e
FF		 777{
778 struct ath_common *common = ath9k_hw_common(ah);
779
d2182b69 780 ath_dbg(common, INTERRUPT, "disable IER\n");
4df3071e
FF		 781 REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
782 (void) REG_READ(ah, AR_IER);
783 if (!AR_SREV_9100(ah)) {
784 REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, 0);
785 (void) REG_READ(ah, AR_INTR_ASYNC_ENABLE);
786
787 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
788 (void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
789 }
790}
f41a9b3b
FF		 791EXPORT_SYMBOL(ath9k_hw_kill_interrupts);
792
793void ath9k_hw_disable_interrupts(struct ath_hw *ah)
794{
795 if (!(ah->imask & ATH9K_INT_GLOBAL))
796 atomic_set(&ah->intr_ref_cnt, -1);
797 else
798 atomic_dec(&ah->intr_ref_cnt);
799
800 ath9k_hw_kill_interrupts(ah);
801}
4df3071e
FF		 802EXPORT_SYMBOL(ath9k_hw_disable_interrupts);
803
804void ath9k_hw_enable_interrupts(struct ath_hw *ah)
805{
806 struct ath_common *common = ath9k_hw_common(ah);
79d1d2b8 807 u32 sync_default = AR_INTR_SYNC_DEFAULT;
f229f815 808 u32 async_mask;
4df3071e
FF		 809
810 if (!(ah->imask & ATH9K_INT_GLOBAL))
811 return;
812
e8fe7336 813 if (!atomic_inc_and_test(&ah->intr_ref_cnt)) {
d2182b69 814 ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
e8fe7336
RM		 815 atomic_read(&ah->intr_ref_cnt));
816 return;
817 }
818
3b8a0577 819 if (AR_SREV_9340(ah) || AR_SREV_9550(ah))
79d1d2b8
VT		 820 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
821
f229f815
MSS		 822 async_mask = AR_INTR_MAC_IRQ;
823
824 if (ah->imask & ATH9K_INT_MCI)
825 async_mask |= AR_INTR_ASYNC_MASK_MCI;
826
d2182b69 827 ath_dbg(common, INTERRUPT, "enable IER\n");
4df3071e
FF		 828 REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
829 if (!AR_SREV_9100(ah)) {
f229f815
MSS		 830 REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, async_mask);
831 REG_WRITE(ah, AR_INTR_ASYNC_MASK, async_mask);
4df3071e 832
79d1d2b8
VT		 833 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
834 REG_WRITE(ah, AR_INTR_SYNC_MASK, sync_default);
4df3071e 835 }
d2182b69 836 ath_dbg(common, INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
226afe68 837 REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
4df3071e
FF		 838}
839EXPORT_SYMBOL(ath9k_hw_enable_interrupts);
840
72d874c6 841void ath9k_hw_set_interrupts(struct ath_hw *ah)
55e82df4 842{
72d874c6 843 enum ath9k_int ints = ah->imask;
55e82df4
VT		 844 u32 mask, mask2;
845 struct ath9k_hw_capabilities *pCap = &ah->caps;
846 struct ath_common *common = ath9k_hw_common(ah);
847
4df3071e 848 if (!(ints & ATH9K_INT_GLOBAL))
385918cc 849 ath9k_hw_disable_interrupts(ah);
55e82df4 850
d2182b69 851 ath_dbg(common, INTERRUPT, "New interrupt mask 0x%x\n", ints);
55e82df4 852
55e82df4
VT		 853 mask = ints & ATH9K_INT_COMMON;
854 mask2 = 0;
855
856 if (ints & ATH9K_INT_TX) {
857 if (ah->config.tx_intr_mitigation)
858 mask |= AR_IMR_TXMINTR | AR_IMR_TXINTM;
5bea4006
LR		 859 else {
860 if (ah->txok_interrupt_mask)
861 mask |= AR_IMR_TXOK;
862 if (ah->txdesc_interrupt_mask)
863 mask |= AR_IMR_TXDESC;
864 }
55e82df4
VT		 865 if (ah->txerr_interrupt_mask)
866 mask |= AR_IMR_TXERR;
867 if (ah->txeol_interrupt_mask)
868 mask |= AR_IMR_TXEOL;
869 }
870 if (ints & ATH9K_INT_RX) {
871 if (AR_SREV_9300_20_OR_LATER(ah)) {
872 mask |= AR_IMR_RXERR | AR_IMR_RXOK_HP;
873 if (ah->config.rx_intr_mitigation) {
874 mask &= ~AR_IMR_RXOK_LP;
875 mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
876 } else {
877 mask |= AR_IMR_RXOK_LP;
878 }
879 } else {
880 if (ah->config.rx_intr_mitigation)
881 mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
882 else
883 mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
884 }
885 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
886 mask |= AR_IMR_GENTMR;
887 }
888
f78eb657
VN		 889 if (ints & ATH9K_INT_GENTIMER)
890 mask |= AR_IMR_GENTMR;
891
55e82df4
VT		 892 if (ints & (ATH9K_INT_BMISC)) {
893 mask |= AR_IMR_BCNMISC;
894 if (ints & ATH9K_INT_TIM)
895 mask2 |= AR_IMR_S2_TIM;
896 if (ints & ATH9K_INT_DTIM)
897 mask2 |= AR_IMR_S2_DTIM;
898 if (ints & ATH9K_INT_DTIMSYNC)
899 mask2 |= AR_IMR_S2_DTIMSYNC;
900 if (ints & ATH9K_INT_CABEND)
901 mask2 |= AR_IMR_S2_CABEND;
902 if (ints & ATH9K_INT_TSFOOR)
903 mask2 |= AR_IMR_S2_TSFOOR;
904 }
905
906 if (ints & (ATH9K_INT_GTT | ATH9K_INT_CST)) {
907 mask |= AR_IMR_BCNMISC;
908 if (ints & ATH9K_INT_GTT)
909 mask2 |= AR_IMR_S2_GTT;
910 if (ints & ATH9K_INT_CST)
911 mask2 |= AR_IMR_S2_CST;
912 }
913
d2182b69 914 ath_dbg(common, INTERRUPT, "new IMR 0x%x\n", mask);
55e82df4
VT		 915 REG_WRITE(ah, AR_IMR, mask);
916 ah->imrs2_reg &= ~(AR_IMR_S2_TIM | AR_IMR_S2_DTIM | AR_IMR_S2_DTIMSYNC |
917 AR_IMR_S2_CABEND | AR_IMR_S2_CABTO |
918 AR_IMR_S2_TSFOOR | AR_IMR_S2_GTT | AR_IMR_S2_CST);
919 ah->imrs2_reg |= mask2;
920 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
921
922 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
923 if (ints & ATH9K_INT_TIM_TIMER)
924 REG_SET_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
925 else
926 REG_CLR_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
927 }
928
4df3071e 929 return;
55e82df4
VT		 930}
931EXPORT_SYMBOL(ath9k_hw_set_interrupts);
Linux kernel - Deliverables
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