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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 00:04:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 00:04:44 -0400
commitf8965467f366fd18f01feafb5db10512d7b4422c (patch)
tree3706a9cd779859271ca61b85c63a1bc3f82d626e /drivers/net/wireless/ath/ath5k/pcu.c
parenta26272e5200765691e67d6780e52b32498fdb659 (diff)
parent2ec8c6bb5d8f3a62a79f463525054bae1e3d4487 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/pcu.c')
-rw-r--r--drivers/net/wireless/ath/ath5k/pcu.c379
1 files changed, 54 insertions, 325 deletions
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index aefe84f9c04..5212e275f1c 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -39,16 +39,16 @@
39 * ath5k_hw_set_opmode - Set PCU operating mode 39 * ath5k_hw_set_opmode - Set PCU operating mode
40 * 40 *
41 * @ah: The &struct ath5k_hw 41 * @ah: The &struct ath5k_hw
42 * @op_mode: &enum nl80211_iftype operating mode
42 * 43 *
43 * Initialize PCU for the various operating modes (AP/STA etc) 44 * Initialize PCU for the various operating modes (AP/STA etc)
44 *
45 * NOTE: ah->ah_op_mode must be set before calling this.
46 */ 45 */
47int ath5k_hw_set_opmode(struct ath5k_hw *ah) 46int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype op_mode)
48{ 47{
49 struct ath_common *common = ath5k_hw_common(ah); 48 struct ath_common *common = ath5k_hw_common(ah);
50 u32 pcu_reg, beacon_reg, low_id, high_id; 49 u32 pcu_reg, beacon_reg, low_id, high_id;
51 50
51 ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_MODE, "mode %d\n", op_mode);
52 52
53 /* Preserve rest settings */ 53 /* Preserve rest settings */
54 pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000; 54 pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000;
@@ -61,7 +61,7 @@ int ath5k_hw_set_opmode(struct ath5k_hw *ah)
61 61
62 ATH5K_TRACE(ah->ah_sc); 62 ATH5K_TRACE(ah->ah_sc);
63 63
64 switch (ah->ah_op_mode) { 64 switch (op_mode) {
65 case NL80211_IFTYPE_ADHOC: 65 case NL80211_IFTYPE_ADHOC:
66 pcu_reg |= AR5K_STA_ID1_ADHOC | AR5K_STA_ID1_KEYSRCH_MODE; 66 pcu_reg |= AR5K_STA_ID1_ADHOC | AR5K_STA_ID1_KEYSRCH_MODE;
67 beacon_reg |= AR5K_BCR_ADHOC; 67 beacon_reg |= AR5K_BCR_ADHOC;
@@ -113,39 +113,26 @@ int ath5k_hw_set_opmode(struct ath5k_hw *ah)
113} 113}
114 114
115/** 115/**
116 * ath5k_hw_update - Update mib counters (mac layer statistics) 116 * ath5k_hw_update - Update MIB counters (mac layer statistics)
117 * 117 *
118 * @ah: The &struct ath5k_hw 118 * @ah: The &struct ath5k_hw
119 * @stats: The &struct ieee80211_low_level_stats we use to track
120 * statistics on the driver
121 * 119 *
122 * Reads MIB counters from PCU and updates sw statistics. Must be 120 * Reads MIB counters from PCU and updates sw statistics. Is called after a
123 * called after a MIB interrupt. 121 * MIB interrupt, because one of these counters might have reached their maximum
122 * and triggered the MIB interrupt, to let us read and clear the counter.
123 *
124 * Is called in interrupt context!
124 */ 125 */
125void ath5k_hw_update_mib_counters(struct ath5k_hw *ah, 126void ath5k_hw_update_mib_counters(struct ath5k_hw *ah)
126 struct ieee80211_low_level_stats *stats)
127{ 127{
128 ATH5K_TRACE(ah->ah_sc); 128 struct ath5k_statistics *stats = &ah->ah_sc->stats;
129 129
130 /* Read-And-Clear */ 130 /* Read-And-Clear */
131 stats->dot11ACKFailureCount += ath5k_hw_reg_read(ah, AR5K_ACK_FAIL); 131 stats->ack_fail += ath5k_hw_reg_read(ah, AR5K_ACK_FAIL);
132 stats->dot11RTSFailureCount += ath5k_hw_reg_read(ah, AR5K_RTS_FAIL); 132 stats->rts_fail += ath5k_hw_reg_read(ah, AR5K_RTS_FAIL);
133 stats->dot11RTSSuccessCount += ath5k_hw_reg_read(ah, AR5K_RTS_OK); 133 stats->rts_ok += ath5k_hw_reg_read(ah, AR5K_RTS_OK);
134 stats->dot11FCSErrorCount += ath5k_hw_reg_read(ah, AR5K_FCS_FAIL); 134 stats->fcs_error += ath5k_hw_reg_read(ah, AR5K_FCS_FAIL);
135 135 stats->beacons += ath5k_hw_reg_read(ah, AR5K_BEACON_CNT);
136 /* XXX: Should we use this to track beacon count ?
137 * -we read it anyway to clear the register */
138 ath5k_hw_reg_read(ah, AR5K_BEACON_CNT);
139
140 /* Reset profile count registers on 5212*/
141 if (ah->ah_version == AR5K_AR5212) {
142 ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_TX);
143 ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_RX);
144 ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_RXCLR);
145 ath5k_hw_reg_write(ah, 0, AR5K_PROFCNT_CYCLE);
146 }
147
148 /* TODO: Handle ANI stats */
149} 136}
150 137
151/** 138/**
@@ -167,9 +154,9 @@ void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high)
167 else { 154 else {
168 u32 val = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB; 155 u32 val = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB;
169 if (high) 156 if (high)
170 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
171 else
172 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1, val); 157 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1, val);
158 else
159 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
173 } 160 }
174} 161}
175 162
@@ -179,25 +166,12 @@ void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high)
179\******************/ 166\******************/
180 167
181/** 168/**
182 * ath5k_hw_het_ack_timeout - Get ACK timeout from PCU in usec
183 *
184 * @ah: The &struct ath5k_hw
185 */
186unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah)
187{
188 ATH5K_TRACE(ah->ah_sc);
189
190 return ath5k_hw_clocktoh(ah, AR5K_REG_MS(ath5k_hw_reg_read(ah,
191 AR5K_TIME_OUT), AR5K_TIME_OUT_ACK));
192}
193
194/**
195 * ath5k_hw_set_ack_timeout - Set ACK timeout on PCU 169 * ath5k_hw_set_ack_timeout - Set ACK timeout on PCU
196 * 170 *
197 * @ah: The &struct ath5k_hw 171 * @ah: The &struct ath5k_hw
198 * @timeout: Timeout in usec 172 * @timeout: Timeout in usec
199 */ 173 */
200int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout) 174static int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
201{ 175{
202 ATH5K_TRACE(ah->ah_sc); 176 ATH5K_TRACE(ah->ah_sc);
203 if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK)) 177 if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK))
@@ -211,24 +185,12 @@ int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
211} 185}
212 186
213/** 187/**
214 * ath5k_hw_get_cts_timeout - Get CTS timeout from PCU in usec
215 *
216 * @ah: The &struct ath5k_hw
217 */
218unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah)
219{
220 ATH5K_TRACE(ah->ah_sc);
221 return ath5k_hw_clocktoh(ah, AR5K_REG_MS(ath5k_hw_reg_read(ah,
222 AR5K_TIME_OUT), AR5K_TIME_OUT_CTS));
223}
224
225/**
226 * ath5k_hw_set_cts_timeout - Set CTS timeout on PCU 188 * ath5k_hw_set_cts_timeout - Set CTS timeout on PCU
227 * 189 *
228 * @ah: The &struct ath5k_hw 190 * @ah: The &struct ath5k_hw
229 * @timeout: Timeout in usec 191 * @timeout: Timeout in usec
230 */ 192 */
231int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout) 193static int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout)
232{ 194{
233 ATH5K_TRACE(ah->ah_sc); 195 ATH5K_TRACE(ah->ah_sc);
234 if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS)) 196 if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS))
@@ -290,7 +252,7 @@ unsigned int ath5k_hw_get_clockrate(struct ath5k_hw *ah)
290 * 252 *
291 * @ah: The &struct ath5k_hw 253 * @ah: The &struct ath5k_hw
292 */ 254 */
293unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah) 255static unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah)
294{ 256{
295 struct ieee80211_channel *channel = ah->ah_current_channel; 257 struct ieee80211_channel *channel = ah->ah_current_channel;
296 258
@@ -308,7 +270,7 @@ unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah)
308 * 270 *
309 * @ah: The &struct ath5k_hw 271 * @ah: The &struct ath5k_hw
310 */ 272 */
311unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah) 273static unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah)
312{ 274{
313 struct ieee80211_channel *channel = ah->ah_current_channel; 275 struct ieee80211_channel *channel = ah->ah_current_channel;
314 276
@@ -417,7 +379,6 @@ void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
417 * (ACK etc). 379 * (ACK etc).
418 * 380 *
419 * NOTE: RX DMA should be already enabled using ath5k_hw_start_rx_dma 381 * NOTE: RX DMA should be already enabled using ath5k_hw_start_rx_dma
420 * TODO: Init ANI here
421 */ 382 */
422void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah) 383void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
423{ 384{
@@ -451,42 +412,6 @@ void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1)
451 ath5k_hw_reg_write(ah, filter1, AR5K_MCAST_FILTER1); 412 ath5k_hw_reg_write(ah, filter1, AR5K_MCAST_FILTER1);
452} 413}
453 414
454/*
455 * Set multicast filter by index
456 */
457int ath5k_hw_set_mcast_filter_idx(struct ath5k_hw *ah, u32 index)
458{
459
460 ATH5K_TRACE(ah->ah_sc);
461 if (index >= 64)
462 return -EINVAL;
463 else if (index >= 32)
464 AR5K_REG_ENABLE_BITS(ah, AR5K_MCAST_FILTER1,
465 (1 << (index - 32)));
466 else
467 AR5K_REG_ENABLE_BITS(ah, AR5K_MCAST_FILTER0, (1 << index));
468
469 return 0;
470}
471
472/*
473 * Clear Multicast filter by index
474 */
475int ath5k_hw_clear_mcast_filter_idx(struct ath5k_hw *ah, u32 index)
476{
477
478 ATH5K_TRACE(ah->ah_sc);
479 if (index >= 64)
480 return -EINVAL;
481 else if (index >= 32)
482 AR5K_REG_DISABLE_BITS(ah, AR5K_MCAST_FILTER1,
483 (1 << (index - 32)));
484 else
485 AR5K_REG_DISABLE_BITS(ah, AR5K_MCAST_FILTER0, (1 << index));
486
487 return 0;
488}
489
490/** 415/**
491 * ath5k_hw_get_rx_filter - Get current rx filter 416 * ath5k_hw_get_rx_filter - Get current rx filter
492 * 417 *
@@ -571,18 +496,7 @@ void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter)
571* Beacon control * 496* Beacon control *
572\****************/ 497\****************/
573 498
574/** 499#define ATH5K_MAX_TSF_READ 10
575 * ath5k_hw_get_tsf32 - Get a 32bit TSF
576 *
577 * @ah: The &struct ath5k_hw
578 *
579 * Returns lower 32 bits of current TSF
580 */
581u32 ath5k_hw_get_tsf32(struct ath5k_hw *ah)
582{
583 ATH5K_TRACE(ah->ah_sc);
584 return ath5k_hw_reg_read(ah, AR5K_TSF_L32);
585}
586 500
587/** 501/**
588 * ath5k_hw_get_tsf64 - Get the full 64bit TSF 502 * ath5k_hw_get_tsf64 - Get the full 64bit TSF
@@ -593,10 +507,35 @@ u32 ath5k_hw_get_tsf32(struct ath5k_hw *ah)
593 */ 507 */
594u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah) 508u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah)
595{ 509{
596 u64 tsf = ath5k_hw_reg_read(ah, AR5K_TSF_U32); 510 u32 tsf_lower, tsf_upper1, tsf_upper2;
511 int i;
512
513 /*
514 * While reading TSF upper and then lower part, the clock is still
515 * counting (or jumping in case of IBSS merge) so we might get
516 * inconsistent values. To avoid this, we read the upper part again
517 * and check it has not been changed. We make the hypothesis that a
518 * maximum of 3 changes can happens in a row (we use 10 as a safe
519 * value).
520 *
521 * Impact on performance is pretty small, since in most cases, only
522 * 3 register reads are needed.
523 */
524
525 tsf_upper1 = ath5k_hw_reg_read(ah, AR5K_TSF_U32);
526 for (i = 0; i < ATH5K_MAX_TSF_READ; i++) {
527 tsf_lower = ath5k_hw_reg_read(ah, AR5K_TSF_L32);
528 tsf_upper2 = ath5k_hw_reg_read(ah, AR5K_TSF_U32);
529 if (tsf_upper2 == tsf_upper1)
530 break;
531 tsf_upper1 = tsf_upper2;
532 }
533
534 WARN_ON( i == ATH5K_MAX_TSF_READ );
535
597 ATH5K_TRACE(ah->ah_sc); 536 ATH5K_TRACE(ah->ah_sc);
598 537
599 return ath5k_hw_reg_read(ah, AR5K_TSF_L32) | (tsf << 32); 538 return (((u64)tsf_upper1 << 32) | tsf_lower);
600} 539}
601 540
602/** 541/**
@@ -651,7 +590,7 @@ void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval)
651 /* 590 /*
652 * Set the additional timers by mode 591 * Set the additional timers by mode
653 */ 592 */
654 switch (ah->ah_op_mode) { 593 switch (ah->ah_sc->opmode) {
655 case NL80211_IFTYPE_MONITOR: 594 case NL80211_IFTYPE_MONITOR:
656 case NL80211_IFTYPE_STATION: 595 case NL80211_IFTYPE_STATION:
657 /* In STA mode timer1 is used as next wakeup 596 /* In STA mode timer1 is used as next wakeup
@@ -688,8 +627,8 @@ void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval)
688 * Set the beacon register and enable all timers. 627 * Set the beacon register and enable all timers.
689 */ 628 */
690 /* When in AP or Mesh Point mode zero timer0 to start TSF */ 629 /* When in AP or Mesh Point mode zero timer0 to start TSF */
691 if (ah->ah_op_mode == NL80211_IFTYPE_AP || 630 if (ah->ah_sc->opmode == NL80211_IFTYPE_AP ||
692 ah->ah_op_mode == NL80211_IFTYPE_MESH_POINT) 631 ah->ah_sc->opmode == NL80211_IFTYPE_MESH_POINT)
693 ath5k_hw_reg_write(ah, 0, AR5K_TIMER0); 632 ath5k_hw_reg_write(ah, 0, AR5K_TIMER0);
694 633
695 ath5k_hw_reg_write(ah, next_beacon, AR5K_TIMER0); 634 ath5k_hw_reg_write(ah, next_beacon, AR5K_TIMER0);
@@ -722,203 +661,6 @@ void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval)
722 661
723} 662}
724 663
725#if 0
726/*
727 * Set beacon timers
728 */
729int ath5k_hw_set_beacon_timers(struct ath5k_hw *ah,
730 const struct ath5k_beacon_state *state)
731{
732 u32 cfp_period, next_cfp, dtim, interval, next_beacon;
733
734 /*
735 * TODO: should be changed through *state
736 * review struct ath5k_beacon_state struct
737 *
738 * XXX: These are used for cfp period bellow, are they
739 * ok ? Is it O.K. for tsf here to be 0 or should we use
740 * get_tsf ?
741 */
742 u32 dtim_count = 0; /* XXX */
743 u32 cfp_count = 0; /* XXX */
744 u32 tsf = 0; /* XXX */
745
746 ATH5K_TRACE(ah->ah_sc);
747 /* Return on an invalid beacon state */
748 if (state->bs_interval < 1)
749 return -EINVAL;
750
751 interval = state->bs_interval;
752 dtim = state->bs_dtim_period;
753
754 /*
755 * PCF support?
756 */
757 if (state->bs_cfp_period > 0) {
758 /*
759 * Enable PCF mode and set the CFP
760 * (Contention Free Period) and timer registers
761 */
762 cfp_period = state->bs_cfp_period * state->bs_dtim_period *
763 state->bs_interval;
764 next_cfp = (cfp_count * state->bs_dtim_period + dtim_count) *
765 state->bs_interval;
766
767 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
768 AR5K_STA_ID1_DEFAULT_ANTENNA |
769 AR5K_STA_ID1_PCF);
770 ath5k_hw_reg_write(ah, cfp_period, AR5K_CFP_PERIOD);
771 ath5k_hw_reg_write(ah, state->bs_cfp_max_duration,
772 AR5K_CFP_DUR);
773 ath5k_hw_reg_write(ah, (tsf + (next_cfp == 0 ? cfp_period :
774 next_cfp)) << 3, AR5K_TIMER2);
775 } else {
776 /* Disable PCF mode */
777 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
778 AR5K_STA_ID1_DEFAULT_ANTENNA |
779 AR5K_STA_ID1_PCF);
780 }
781
782 /*
783 * Enable the beacon timer register
784 */
785 ath5k_hw_reg_write(ah, state->bs_next_beacon, AR5K_TIMER0);
786
787 /*
788 * Start the beacon timers
789 */
790 ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, AR5K_BEACON) &
791 ~(AR5K_BEACON_PERIOD | AR5K_BEACON_TIM)) |
792 AR5K_REG_SM(state->bs_tim_offset ? state->bs_tim_offset + 4 : 0,
793 AR5K_BEACON_TIM) | AR5K_REG_SM(state->bs_interval,
794 AR5K_BEACON_PERIOD), AR5K_BEACON);
795
796 /*
797 * Write new beacon miss threshold, if it appears to be valid
798 * XXX: Figure out right values for min <= bs_bmiss_threshold <= max
799 * and return if its not in range. We can test this by reading value and
800 * setting value to a largest value and seeing which values register.
801 */
802
803 AR5K_REG_WRITE_BITS(ah, AR5K_RSSI_THR, AR5K_RSSI_THR_BMISS,
804 state->bs_bmiss_threshold);
805
806 /*
807 * Set sleep control register
808 * XXX: Didn't find this in 5210 code but since this register
809 * exists also in ar5k's 5210 headers i leave it as common code.
810 */
811 AR5K_REG_WRITE_BITS(ah, AR5K_SLEEP_CTL, AR5K_SLEEP_CTL_SLDUR,
812 (state->bs_sleep_duration - 3) << 3);
813
814 /*
815 * Set enhanced sleep registers on 5212
816 */
817 if (ah->ah_version == AR5K_AR5212) {
818 if (state->bs_sleep_duration > state->bs_interval &&
819 roundup(state->bs_sleep_duration, interval) ==
820 state->bs_sleep_duration)
821 interval = state->bs_sleep_duration;
822
823 if (state->bs_sleep_duration > dtim && (dtim == 0 ||
824 roundup(state->bs_sleep_duration, dtim) ==
825 state->bs_sleep_duration))
826 dtim = state->bs_sleep_duration;
827
828 if (interval > dtim)
829 return -EINVAL;
830
831 next_beacon = interval == dtim ? state->bs_next_dtim :
832 state->bs_next_beacon;
833
834 ath5k_hw_reg_write(ah,
835 AR5K_REG_SM((state->bs_next_dtim - 3) << 3,
836 AR5K_SLEEP0_NEXT_DTIM) |
837 AR5K_REG_SM(10, AR5K_SLEEP0_CABTO) |
838 AR5K_SLEEP0_ENH_SLEEP_EN |
839 AR5K_SLEEP0_ASSUME_DTIM, AR5K_SLEEP0);
840
841 ath5k_hw_reg_write(ah, AR5K_REG_SM((next_beacon - 3) << 3,
842 AR5K_SLEEP1_NEXT_TIM) |
843 AR5K_REG_SM(10, AR5K_SLEEP1_BEACON_TO), AR5K_SLEEP1);
844
845 ath5k_hw_reg_write(ah,
846 AR5K_REG_SM(interval, AR5K_SLEEP2_TIM_PER) |
847 AR5K_REG_SM(dtim, AR5K_SLEEP2_DTIM_PER), AR5K_SLEEP2);
848 }
849
850 return 0;
851}
852
853/*
854 * Reset beacon timers
855 */
856void ath5k_hw_reset_beacon(struct ath5k_hw *ah)
857{
858 ATH5K_TRACE(ah->ah_sc);
859 /*
860 * Disable beacon timer
861 */
862 ath5k_hw_reg_write(ah, 0, AR5K_TIMER0);
863
864 /*
865 * Disable some beacon register values
866 */
867 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
868 AR5K_STA_ID1_DEFAULT_ANTENNA | AR5K_STA_ID1_PCF);
869 ath5k_hw_reg_write(ah, AR5K_BEACON_PERIOD, AR5K_BEACON);
870}
871
872/*
873 * Wait for beacon queue to finish
874 */
875int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr)
876{
877 unsigned int i;
878 int ret;
879
880 ATH5K_TRACE(ah->ah_sc);
881
882 /* 5210 doesn't have QCU*/
883 if (ah->ah_version == AR5K_AR5210) {
884 /*
885 * Wait for beaconn queue to finish by checking
886 * Control Register and Beacon Status Register.
887 */
888 for (i = AR5K_TUNE_BEACON_INTERVAL / 2; i > 0; i--) {
889 if (!(ath5k_hw_reg_read(ah, AR5K_BSR) & AR5K_BSR_TXQ1F)
890 ||
891 !(ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_BSR_TXQ1F))
892 break;
893 udelay(10);
894 }
895
896 /* Timeout... */
897 if (i <= 0) {
898 /*
899 * Re-schedule the beacon queue
900 */
901 ath5k_hw_reg_write(ah, phys_addr, AR5K_NOQCU_TXDP1);
902 ath5k_hw_reg_write(ah, AR5K_BCR_TQ1V | AR5K_BCR_BDMAE,
903 AR5K_BCR);
904
905 return -EIO;
906 }
907 ret = 0;
908 } else {
909 /*5211/5212*/
910 ret = ath5k_hw_register_timeout(ah,
911 AR5K_QUEUE_STATUS(AR5K_TX_QUEUE_ID_BEACON),
912 AR5K_QCU_STS_FRMPENDCNT, 0, false);
913
914 if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, AR5K_TX_QUEUE_ID_BEACON))
915 return -EIO;
916 }
917
918 return ret;
919}
920#endif
921
922 664
923/*********************\ 665/*********************\
924* Key table functions * 666* Key table functions *
@@ -971,19 +713,6 @@ int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
971 return 0; 713 return 0;
972} 714}
973 715
974/*
975 * Check if a table entry is valid
976 */
977int ath5k_hw_is_key_valid(struct ath5k_hw *ah, u16 entry)
978{
979 ATH5K_TRACE(ah->ah_sc);
980 AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
981
982 /* Check the validation flag at the end of the entry */
983 return ath5k_hw_reg_read(ah, AR5K_KEYTABLE_MAC1(entry)) &
984 AR5K_KEYTABLE_VALID;
985}
986
987static 716static
988int ath5k_keycache_type(const struct ieee80211_key_conf *key) 717int ath5k_keycache_type(const struct ieee80211_key_conf *key)
989{ 718{