2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
3 * Copyright (c) 2002-2008 Atheros Communications, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 #include "ah_internal.h"
25 #include "ah_eeprom_v14.h"
27 #include "ar5416/ar5416.h"
28 #include "ar5416/ar5416reg.h"
29 #include "ar5416/ar5416phy.h"
31 /* Eeprom versioning macros. Returns true if the version is equal or newer than the ver specified */
32 #define EEP_MINOR(_ah) \
33 (AH_PRIVATE(_ah)->ah_eeversion & AR5416_EEP_VER_MINOR_MASK)
34 #define IS_EEP_MINOR_V2(_ah) (EEP_MINOR(_ah) >= AR5416_EEP_MINOR_VER_2)
35 #define IS_EEP_MINOR_V3(_ah) (EEP_MINOR(_ah) >= AR5416_EEP_MINOR_VER_3)
37 /* Additional Time delay to wait after activiting the Base band */
38 #define BASE_ACTIVATE_DELAY 100 /* 100 usec */
39 #define PLL_SETTLE_DELAY 300 /* 300 usec */
40 #define RTC_PLL_SETTLE_DELAY 1000 /* 1 ms */
42 static void ar5416InitDMA(struct ath_hal *ah);
43 static void ar5416InitBB(struct ath_hal *ah, const struct ieee80211_channel *);
44 static void ar5416InitIMR(struct ath_hal *ah, HAL_OPMODE opmode);
45 static void ar5416InitQoS(struct ath_hal *ah);
46 static void ar5416InitUserSettings(struct ath_hal *ah);
47 static void ar5416OverrideIni(struct ath_hal *ah, const struct ieee80211_channel *);
50 static HAL_BOOL ar5416ChannelChange(struct ath_hal *, const struct ieee80211_channel *);
52 static void ar5416SetDeltaSlope(struct ath_hal *, const struct ieee80211_channel *);
54 static HAL_BOOL ar5416SetResetPowerOn(struct ath_hal *ah);
55 static HAL_BOOL ar5416SetReset(struct ath_hal *ah, int type);
56 static HAL_BOOL ar5416SetPowerPerRateTable(struct ath_hal *ah,
57 struct ar5416eeprom *pEepData,
58 const struct ieee80211_channel *chan, int16_t *ratesArray,
59 uint16_t cfgCtl, uint16_t AntennaReduction,
60 uint16_t twiceMaxRegulatoryPower,
62 static void ar5416Set11nRegs(struct ath_hal *ah, const struct ieee80211_channel *chan);
63 static void ar5416MarkPhyInactive(struct ath_hal *ah);
64 static void ar5416SetIFSTiming(struct ath_hal *ah,
65 const struct ieee80211_channel *chan);
68 * Places the device in and out of reset and then places sane
69 * values in the registers based on EEPROM config, initialization
70 * vectors (as determined by the mode), and station configuration
72 * bChannelChange is used to preserve DMA/PCU registers across
73 * a HW Reset during channel change.
76 ar5416Reset(struct ath_hal *ah, HAL_OPMODE opmode,
77 struct ieee80211_channel *chan,
78 HAL_BOOL bChannelChange, HAL_STATUS *status)
80 #define N(a) (sizeof (a) / sizeof (a[0]))
81 #define FAIL(_code) do { ecode = _code; goto bad; } while (0)
82 struct ath_hal_5212 *ahp = AH5212(ah);
83 HAL_CHANNEL_INTERNAL *ichan;
84 uint32_t saveDefAntenna, saveLedState;
86 uint16_t rfXpdGain[2];
88 uint32_t powerVal, rssiThrReg;
89 uint32_t ackTpcPow, ctsTpcPow, chirpTpcPow;
93 OS_MARK(ah, AH_MARK_RESET, bChannelChange);
95 /* Bring out of sleep mode */
96 if (!ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) {
97 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip did not wakeup\n",
103 * Map public channel to private.
105 ichan = ath_hal_checkchannel(ah, chan);
106 if (ichan == AH_NULL)
115 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid operating mode %u\n",
120 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER14_1);
122 /* Blank the channel survey statistics */
123 OS_MEMZERO(&ahp->ah_chansurvey, sizeof(ahp->ah_chansurvey));
125 /* XXX Turn on fast channel change for 5416 */
127 * Preserve the bmiss rssi threshold and count threshold
130 rssiThrReg = OS_REG_READ(ah, AR_RSSI_THR);
131 /* If reg is zero, first time thru set to default val */
133 rssiThrReg = INIT_RSSI_THR;
136 * Preserve the antenna on a channel change
138 saveDefAntenna = OS_REG_READ(ah, AR_DEF_ANTENNA);
141 * Don't do this for the AR9285 - it breaks RX for single
142 * antenna designs when diversity is disabled.
144 * I'm not sure what this was working around; it may be
145 * something to do with the AR5416. Certainly this register
146 * isn't supposed to be used by the MIMO chips for anything
147 * except for defining the default antenna when an external
148 * phase array / smart antenna is connected.
150 * See PR: kern/179269 .
152 if ((! AR_SREV_KITE(ah)) && saveDefAntenna == 0) /* XXX magic constants */
155 /* Save hardware flag before chip reset clears the register */
156 macStaId1 = OS_REG_READ(ah, AR_STA_ID1) &
157 (AR_STA_ID1_BASE_RATE_11B | AR_STA_ID1_USE_DEFANT);
159 /* Save led state from pci config register */
160 saveLedState = OS_REG_READ(ah, AR_MAC_LED) &
161 (AR_MAC_LED_ASSOC | AR_MAC_LED_MODE |
162 AR_MAC_LED_BLINK_THRESH_SEL | AR_MAC_LED_BLINK_SLOW);
164 /* For chips on which the RTC reset is done, save TSF before it gets cleared */
165 if (AR_SREV_HOWL(ah) ||
166 (AR_SREV_MERLIN(ah) &&
167 ath_hal_eepromGetFlag(ah, AR_EEP_OL_PWRCTRL)) ||
168 (ah->ah_config.ah_force_full_reset))
169 tsf = ar5416GetTsf64(ah);
171 /* Mark PHY as inactive; marked active in ar5416InitBB() */
172 ar5416MarkPhyInactive(ah);
174 if (!ar5416ChipReset(ah, chan)) {
175 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__);
181 ar5416SetTsf64(ah, tsf);
183 OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
184 if (AR_SREV_MERLIN_10_OR_LATER(ah))
185 OS_REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
187 AH5416(ah)->ah_writeIni(ah, chan);
189 if(AR_SREV_KIWI_13_OR_LATER(ah) ) {
190 /* Enable ASYNC FIFO */
191 OS_REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
192 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
193 OS_REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
194 OS_REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
195 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
196 OS_REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
197 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
200 /* Override ini values (that can be overriden in this fashion) */
201 ar5416OverrideIni(ah, chan);
203 /* Setup 11n MAC/Phy mode registers */
204 ar5416Set11nRegs(ah, chan);
206 OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
209 * Some AR91xx SoC devices frequently fail to accept TSF writes
210 * right after the chip reset. When that happens, write a new
211 * value after the initvals have been applied, with an offset
212 * based on measured time difference
214 if (AR_SREV_HOWL(ah) && (ar5416GetTsf64(ah) < tsf)) {
216 ar5416SetTsf64(ah, tsf);
219 HALDEBUG(ah, HAL_DEBUG_RESET, ">>>2 %s: AR_PHY_DAG_CTRLCCK=0x%x\n",
220 __func__, OS_REG_READ(ah,AR_PHY_DAG_CTRLCCK));
221 HALDEBUG(ah, HAL_DEBUG_RESET, ">>>2 %s: AR_PHY_ADC_CTL=0x%x\n",
222 __func__, OS_REG_READ(ah,AR_PHY_ADC_CTL));
225 * This routine swaps the analog chains - it should be done
226 * before any radio register twiddling is done.
228 ar5416InitChainMasks(ah);
230 /* Setup the open-loop power calibration if required */
231 if (ath_hal_eepromGetFlag(ah, AR_EEP_OL_PWRCTRL)) {
232 AH5416(ah)->ah_olcInit(ah);
233 AH5416(ah)->ah_olcTempCompensation(ah);
236 /* Setup the transmit power values. */
237 if (!ah->ah_setTxPower(ah, chan, rfXpdGain)) {
238 HALDEBUG(ah, HAL_DEBUG_ANY,
239 "%s: error init'ing transmit power\n", __func__);
243 /* Write the analog registers */
244 if (!ahp->ah_rfHal->setRfRegs(ah, chan,
245 IEEE80211_IS_CHAN_2GHZ(chan) ? 2: 1, rfXpdGain)) {
246 HALDEBUG(ah, HAL_DEBUG_ANY,
247 "%s: ar5212SetRfRegs failed\n", __func__);
251 /* Write delta slope for OFDM enabled modes (A, G, Turbo) */
252 if (IEEE80211_IS_CHAN_OFDM(chan)|| IEEE80211_IS_CHAN_HT(chan))
253 ar5416SetDeltaSlope(ah, chan);
255 AH5416(ah)->ah_spurMitigate(ah, chan);
257 /* Setup board specific options for EEPROM version 3 */
258 if (!ah->ah_setBoardValues(ah, chan)) {
259 HALDEBUG(ah, HAL_DEBUG_ANY,
260 "%s: error setting board options\n", __func__);
264 OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
266 OS_REG_WRITE(ah, AR_STA_ID0, LE_READ_4(ahp->ah_macaddr));
267 OS_REG_WRITE(ah, AR_STA_ID1, LE_READ_2(ahp->ah_macaddr + 4)
269 | AR_STA_ID1_RTS_USE_DEF
270 | ahp->ah_staId1Defaults
272 ar5212SetOperatingMode(ah, opmode);
274 /* Set Venice BSSID mask according to current state */
275 OS_REG_WRITE(ah, AR_BSSMSKL, LE_READ_4(ahp->ah_bssidmask));
276 OS_REG_WRITE(ah, AR_BSSMSKU, LE_READ_2(ahp->ah_bssidmask + 4));
278 /* Restore previous led state */
279 if (AR_SREV_HOWL(ah))
280 OS_REG_WRITE(ah, AR_MAC_LED,
281 AR_MAC_LED_ASSOC_ACTIVE | AR_CFG_SCLK_32KHZ);
283 OS_REG_WRITE(ah, AR_MAC_LED, OS_REG_READ(ah, AR_MAC_LED) |
286 /* Start TSF2 for generic timer 8-15 */
288 if (AR_SREV_KIWI(ah))
293 * Enable Bluetooth Coexistence if it's enabled.
295 if (AH5416(ah)->ah_btCoexConfigType != HAL_BT_COEX_CFG_NONE)
296 ar5416InitBTCoex(ah);
298 /* Restore previous antenna */
299 OS_REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
301 /* then our BSSID and associate id */
302 OS_REG_WRITE(ah, AR_BSS_ID0, LE_READ_4(ahp->ah_bssid));
303 OS_REG_WRITE(ah, AR_BSS_ID1, LE_READ_2(ahp->ah_bssid + 4) |
304 (ahp->ah_assocId & 0x3fff) << AR_BSS_ID1_AID_S);
306 /* Restore bmiss rssi & count thresholds */
307 OS_REG_WRITE(ah, AR_RSSI_THR, ahp->ah_rssiThr);
309 OS_REG_WRITE(ah, AR_ISR, ~0); /* cleared on write */
311 /* Restore bmiss rssi & count thresholds */
312 OS_REG_WRITE(ah, AR_RSSI_THR, rssiThrReg);
314 if (!ar5212SetChannel(ah, chan))
317 OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
319 /* Set 1:1 QCU to DCU mapping for all queues */
320 for (i = 0; i < AR_NUM_DCU; i++)
321 OS_REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
323 ahp->ah_intrTxqs = 0;
324 for (i = 0; i < AH_PRIVATE(ah)->ah_caps.halTotalQueues; i++)
325 ah->ah_resetTxQueue(ah, i);
327 ar5416InitIMR(ah, opmode);
328 ar5416SetCoverageClass(ah, AH_PRIVATE(ah)->ah_coverageClass, 1);
330 /* This may override the AR_DIAG_SW register */
331 ar5416InitUserSettings(ah);
333 /* XXX this won't work for AR9287! */
334 if (IEEE80211_IS_CHAN_HALF(chan) || IEEE80211_IS_CHAN_QUARTER(chan)) {
335 ar5416SetIFSTiming(ah, chan);
339 * Force window_length for 1/2 and 1/4 rate channels,
340 * the ini file sets this to zero otherwise.
342 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
343 AR_PHY_FRAME_CTL_WINLEN, 3);
348 if (AR_SREV_KIWI_13_OR_LATER(ah)) {
352 * If Async FIFO is enabled, the following counters change
353 * as MAC now runs at 117 Mhz instead of 88/44MHz when
354 * async FIFO is disabled.
356 * Overwrite the delay/timeouts initialized in ProcessIni()
359 OS_REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
360 AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
361 OS_REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
362 AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
363 OS_REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
364 AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
366 OS_REG_WRITE(ah, AR_TIME_OUT,
367 AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
368 OS_REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
370 OS_REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
371 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
372 OS_REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
373 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
376 if (AR_SREV_KIWI_13_OR_LATER(ah)) {
377 /* Enable AGGWEP to accelerate encryption engine */
378 OS_REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
379 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
384 * disable seq number generation in hw
386 OS_REG_WRITE(ah, AR_STA_ID1,
387 OS_REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
392 * program OBS bus to see MAC interrupts
394 OS_REG_WRITE(ah, AR_OBS, 8);
397 * Disable the "general" TX/RX mitigation timers.
399 OS_REG_WRITE(ah, AR_MIRT, 0);
401 #ifdef AH_AR5416_INTERRUPT_MITIGATION
403 * This initialises the RX interrupt mitigation timers.
405 * The mitigation timers begin at idle and are triggered
406 * upon the RXOK of a single frame (or sub-frame, for A-MPDU.)
407 * Then, the RX mitigation interrupt will fire:
409 * + 250uS after the last RX'ed frame, or
410 * + 700uS after the first RX'ed frame
412 * Thus, the LAST field dictates the extra latency
413 * induced by the RX mitigation method and the FIRST
414 * field dictates how long to delay before firing an
415 * RX mitigation interrupt.
417 * Please note this only seems to be for RXOK frames;
418 * not CRC or PHY error frames.
421 OS_REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 250);
422 OS_REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 700);
424 ar5416InitBB(ah, chan);
426 /* Setup compression registers */
427 ar5212SetCompRegs(ah); /* XXX not needed? */
430 * 5416 baseband will check the per rate power table
431 * and select the lower of the two
436 powerVal = SM(ackTpcPow, AR_TPC_ACK) |
437 SM(ctsTpcPow, AR_TPC_CTS) |
438 SM(chirpTpcPow, AR_TPC_CHIRP);
439 OS_REG_WRITE(ah, AR_TPC, powerVal);
441 if (!ar5416InitCal(ah, chan))
444 ar5416RestoreChainMask(ah);
446 AH_PRIVATE(ah)->ah_opmode = opmode; /* record operating mode */
448 if (bChannelChange && !IEEE80211_IS_CHAN_DFS(chan))
449 chan->ic_state &= ~IEEE80211_CHANSTATE_CWINT;
451 if (AR_SREV_HOWL(ah)) {
453 * Enable the MBSSID block-ack fix for HOWL.
454 * This feature is only supported on Howl 1.4, but it is safe to
455 * set bit 22 of STA_ID1 on other Howl revisions (1.1, 1.2, 1.3),
456 * since bit 22 is unused in those Howl revisions.
459 reg = (OS_REG_READ(ah, AR_STA_ID1) | (1<<22));
460 OS_REG_WRITE(ah,AR_STA_ID1, reg);
461 ath_hal_printf(ah, "MBSSID Set bit 22 of AR_STA_ID 0x%x\n", reg);
464 HALDEBUG(ah, HAL_DEBUG_RESET, "%s: done\n", __func__);
466 OS_MARK(ah, AH_MARK_RESET_DONE, 0);
470 OS_MARK(ah, AH_MARK_RESET_DONE, ecode);
471 if (status != AH_NULL)
480 * This channel change evaluates whether the selected hardware can
481 * perform a synthesizer-only channel change (no reset). If the
482 * TX is not stopped, or the RFBus cannot be granted in the given
483 * time, the function returns false as a reset is necessary
486 ar5416ChannelChange(struct ath_hal *ah, const structu ieee80211_channel *chan)
489 uint32_t data, synthDelay, qnum;
490 uint16_t rfXpdGain[4];
491 struct ath_hal_5212 *ahp = AH5212(ah);
492 HAL_CHANNEL_INTERNAL *ichan;
495 * Map public channel to private.
497 ichan = ath_hal_checkchannel(ah, chan);
499 /* TX must be stopped or RF Bus grant will not work */
500 for (qnum = 0; qnum < AH_PRIVATE(ah)->ah_caps.halTotalQueues; qnum++) {
501 if (ar5212NumTxPending(ah, qnum)) {
502 HALDEBUG(ah, HAL_DEBUG_ANY,
503 "%s: frames pending on queue %d\n", __func__, qnum);
509 * Kill last Baseband Rx Frame - Request analog bus grant
511 OS_REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_REQUEST);
512 if (!ath_hal_wait(ah, AR_PHY_RFBUS_GNT, AR_PHY_RFBUS_GRANT_EN, AR_PHY_RFBUS_GRANT_EN)) {
513 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: could not kill baseband rx\n",
518 ar5416Set11nRegs(ah, chan); /* NB: setup 5416-specific regs */
520 /* Change the synth */
521 if (!ar5212SetChannel(ah, chan))
524 /* Setup the transmit power values. */
525 if (!ah->ah_setTxPower(ah, chan, rfXpdGain)) {
526 HALDEBUG(ah, HAL_DEBUG_ANY,
527 "%s: error init'ing transmit power\n", __func__);
532 * Wait for the frequency synth to settle (synth goes on
533 * via PHY_ACTIVE_EN). Read the phy active delay register.
534 * Value is in 100ns increments.
536 data = OS_REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
537 if (IS_CHAN_CCK(ichan)) {
538 synthDelay = (4 * data) / 22;
540 synthDelay = data / 10;
543 OS_DELAY(synthDelay + BASE_ACTIVATE_DELAY);
545 /* Release the RFBus Grant */
546 OS_REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
548 /* Write delta slope for OFDM enabled modes (A, G, Turbo) */
549 if (IEEE80211_IS_CHAN_OFDM(ichan)|| IEEE80211_IS_CHAN_HT(chan)) {
550 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER5_3);
551 ar5212SetSpurMitigation(ah, chan);
552 ar5416SetDeltaSlope(ah, chan);
555 /* XXX spur mitigation for Melin */
557 if (!IEEE80211_IS_CHAN_DFS(chan))
558 chan->ic_state &= ~IEEE80211_CHANSTATE_CWINT;
560 ichan->channel_time = 0;
561 ichan->tsf_last = ar5416GetTsf64(ah);
562 ar5212TxEnable(ah, AH_TRUE);
568 ar5416InitDMA(struct ath_hal *ah)
570 struct ath_hal_5212 *ahp = AH5212(ah);
573 * set AHB_MODE not to do cacheline prefetches
575 OS_REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
578 * let mac dma reads be in 128 byte chunks
580 OS_REG_WRITE(ah, AR_TXCFG,
581 (OS_REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK) | AR_TXCFG_DMASZ_128B);
584 * let mac dma writes be in 128 byte chunks
587 * XXX If you change this, you must change the headroom
588 * assigned in ah_maxTxTrigLev - see ar5416InitState().
590 OS_REG_WRITE(ah, AR_RXCFG,
591 (OS_REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK) | AR_RXCFG_DMASZ_128B);
593 /* restore TX trigger level */
594 OS_REG_WRITE(ah, AR_TXCFG,
595 (OS_REG_READ(ah, AR_TXCFG) &~ AR_FTRIG) |
596 SM(ahp->ah_txTrigLev, AR_FTRIG));
599 * Setup receive FIFO threshold to hold off TX activities
601 OS_REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
604 * reduce the number of usable entries in PCU TXBUF to avoid
607 if (AR_SREV_KITE(ah))
609 * For AR9285 the number of Fifos are reduced to half.
610 * So set the usable tx buf size also to half to
611 * avoid data/delimiter underruns
613 OS_REG_WRITE(ah, AR_PCU_TXBUF_CTRL, AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
615 OS_REG_WRITE(ah, AR_PCU_TXBUF_CTRL, AR_PCU_TXBUF_CTRL_USABLE_SIZE);
619 ar5416InitBB(struct ath_hal *ah, const struct ieee80211_channel *chan)
624 * Wait for the frequency synth to settle (synth goes on
625 * via AR_PHY_ACTIVE_EN). Read the phy active delay register.
626 * Value is in 100ns increments.
628 synthDelay = OS_REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
629 if (IEEE80211_IS_CHAN_CCK(chan)) {
630 synthDelay = (4 * synthDelay) / 22;
635 /* Turn on PLL on 5416 */
636 HALDEBUG(ah, HAL_DEBUG_RESET, "%s %s channel\n",
637 __func__, IEEE80211_IS_CHAN_5GHZ(chan) ? "5GHz" : "2GHz");
639 /* Activate the PHY (includes baseband activate and synthesizer on) */
640 OS_REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
643 * If the AP starts the calibration before the base band timeout
644 * completes we could get rx_clear false triggering. Add an
645 * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
648 if (IEEE80211_IS_CHAN_HALF(chan)) {
649 OS_DELAY((synthDelay << 1) + BASE_ACTIVATE_DELAY);
650 } else if (IEEE80211_IS_CHAN_QUARTER(chan)) {
651 OS_DELAY((synthDelay << 2) + BASE_ACTIVATE_DELAY);
653 OS_DELAY(synthDelay + BASE_ACTIVATE_DELAY);
658 ar5416InitIMR(struct ath_hal *ah, HAL_OPMODE opmode)
660 struct ath_hal_5212 *ahp = AH5212(ah);
663 * Setup interrupt handling. Note that ar5212ResetTxQueue
664 * manipulates the secondary IMR's as queues are enabled
665 * and disabled. This is done with RMW ops to insure the
666 * settings we make here are preserved.
668 ahp->ah_maskReg = AR_IMR_TXERR | AR_IMR_TXURN
669 | AR_IMR_RXERR | AR_IMR_RXORN
672 #ifdef AH_AR5416_INTERRUPT_MITIGATION
673 ahp->ah_maskReg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
675 ahp->ah_maskReg |= AR_IMR_RXOK;
677 ahp->ah_maskReg |= AR_IMR_TXOK;
679 if (opmode == HAL_M_HOSTAP)
680 ahp->ah_maskReg |= AR_IMR_MIB;
681 OS_REG_WRITE(ah, AR_IMR, ahp->ah_maskReg);
684 /* This is straight from ath9k */
685 if (! AR_SREV_HOWL(ah)) {
686 OS_REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
687 OS_REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
688 OS_REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
692 /* Enable bus errors that are OR'd to set the HIUERR bit */
694 OS_REG_WRITE(ah, AR_IMR_S2,
695 OS_REG_READ(ah, AR_IMR_S2) | AR_IMR_S2_GTT | AR_IMR_S2_CST);
700 ar5416InitQoS(struct ath_hal *ah)
703 OS_REG_WRITE(ah, AR_QOS_CONTROL, 0x100aa); /* XXX magic */
704 OS_REG_WRITE(ah, AR_QOS_SELECT, 0x3210); /* XXX magic */
706 /* Turn on NOACK Support for QoS packets */
707 OS_REG_WRITE(ah, AR_NOACK,
708 SM(2, AR_NOACK_2BIT_VALUE) |
709 SM(5, AR_NOACK_BIT_OFFSET) |
710 SM(0, AR_NOACK_BYTE_OFFSET));
713 * initialize TXOP for all TIDs
715 OS_REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
716 OS_REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
717 OS_REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
718 OS_REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
719 OS_REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
723 ar5416InitUserSettings(struct ath_hal *ah)
725 struct ath_hal_5212 *ahp = AH5212(ah);
727 /* Restore user-specified settings */
728 if (ahp->ah_miscMode != 0)
729 OS_REG_WRITE(ah, AR_MISC_MODE, OS_REG_READ(ah, AR_MISC_MODE)
731 if (ahp->ah_sifstime != (u_int) -1)
732 ar5212SetSifsTime(ah, ahp->ah_sifstime);
733 if (ahp->ah_slottime != (u_int) -1)
734 ar5212SetSlotTime(ah, ahp->ah_slottime);
735 if (ahp->ah_acktimeout != (u_int) -1)
736 ar5212SetAckTimeout(ah, ahp->ah_acktimeout);
737 if (ahp->ah_ctstimeout != (u_int) -1)
738 ar5212SetCTSTimeout(ah, ahp->ah_ctstimeout);
739 if (AH_PRIVATE(ah)->ah_diagreg != 0)
740 OS_REG_WRITE(ah, AR_DIAG_SW, AH_PRIVATE(ah)->ah_diagreg);
741 if (AH5416(ah)->ah_globaltxtimeout != (u_int) -1)
742 ar5416SetGlobalTxTimeout(ah, AH5416(ah)->ah_globaltxtimeout);
746 ar5416SetRfMode(struct ath_hal *ah, const struct ieee80211_channel *chan)
753 /* treat channel B as channel G , no B mode suport in owl */
754 rfMode = IEEE80211_IS_CHAN_CCK(chan) ?
755 AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
757 if (AR_SREV_MERLIN_20(ah) && IS_5GHZ_FAST_CLOCK_EN(ah, chan)) {
758 /* phy mode bits for 5GHz channels require Fast Clock */
759 rfMode |= AR_PHY_MODE_DYNAMIC
760 | AR_PHY_MODE_DYN_CCK_DISABLE;
761 } else if (!AR_SREV_MERLIN_10_OR_LATER(ah)) {
762 rfMode |= IEEE80211_IS_CHAN_5GHZ(chan) ?
763 AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
766 OS_REG_WRITE(ah, AR_PHY_MODE, rfMode);
770 * Places the hardware into reset and then pulls it out of reset
773 ar5416ChipReset(struct ath_hal *ah, const struct ieee80211_channel *chan)
775 OS_MARK(ah, AH_MARK_CHIPRESET, chan ? chan->ic_freq : 0);
777 * Warm reset is optimistic for open-loop TX power control.
779 if (AR_SREV_MERLIN(ah) &&
780 ath_hal_eepromGetFlag(ah, AR_EEP_OL_PWRCTRL)) {
781 if (!ar5416SetResetReg(ah, HAL_RESET_POWER_ON))
783 } else if (ah->ah_config.ah_force_full_reset) {
784 if (!ar5416SetResetReg(ah, HAL_RESET_POWER_ON))
787 if (!ar5416SetResetReg(ah, HAL_RESET_WARM))
791 /* Bring out of sleep mode (AGAIN) */
792 if (!ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
796 ahp->ah_chipFullSleep = AH_FALSE;
799 AH5416(ah)->ah_initPLL(ah, chan);
802 * Perform warm reset before the mode/PLL/turbo registers
803 * are changed in order to deactivate the radio. Mode changes
804 * with an active radio can result in corrupted shifts to the
807 ar5416SetRfMode(ah, chan);
813 * Delta slope coefficient computation.
814 * Required for OFDM operation.
817 ar5416GetDeltaSlopeValues(struct ath_hal *ah, uint32_t coef_scaled,
818 uint32_t *coef_mantissa, uint32_t *coef_exponent)
820 #define COEF_SCALE_S 24
821 uint32_t coef_exp, coef_man;
823 * ALGO -> coef_exp = 14-floor(log2(coef));
824 * floor(log2(x)) is the highest set bit position
826 for (coef_exp = 31; coef_exp > 0; coef_exp--)
827 if ((coef_scaled >> coef_exp) & 0x1)
829 /* A coef_exp of 0 is a legal bit position but an unexpected coef_exp */
831 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
834 * ALGO -> coef_man = floor(coef* 2^coef_exp+0.5);
835 * The coefficient is already shifted up for scaling
837 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
839 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
840 *coef_exponent = coef_exp - 16;
846 ar5416SetDeltaSlope(struct ath_hal *ah, const struct ieee80211_channel *chan)
848 #define INIT_CLOCKMHZSCALED 0x64000000
849 uint32_t coef_scaled, ds_coef_exp, ds_coef_man;
850 uint32_t clockMhzScaled;
852 CHAN_CENTERS centers;
854 /* half and quarter rate can divide the scaled clock by 2 or 4 respectively */
855 /* scale for selected channel bandwidth */
856 clockMhzScaled = INIT_CLOCKMHZSCALED;
857 if (IEEE80211_IS_CHAN_TURBO(chan))
858 clockMhzScaled <<= 1;
859 else if (IEEE80211_IS_CHAN_HALF(chan))
860 clockMhzScaled >>= 1;
861 else if (IEEE80211_IS_CHAN_QUARTER(chan))
862 clockMhzScaled >>= 2;
865 * ALGO -> coef = 1e8/fcarrier*fclock/40;
866 * scaled coef to provide precision for this floating calculation
868 ar5416GetChannelCenters(ah, chan, ¢ers);
869 coef_scaled = clockMhzScaled / centers.synth_center;
871 ar5416GetDeltaSlopeValues(ah, coef_scaled, &ds_coef_man, &ds_coef_exp);
873 OS_REG_RMW_FIELD(ah, AR_PHY_TIMING3,
874 AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
875 OS_REG_RMW_FIELD(ah, AR_PHY_TIMING3,
876 AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
880 * scaled coeff is 9/10 that of normal coeff
882 coef_scaled = (9 * coef_scaled)/10;
884 ar5416GetDeltaSlopeValues(ah, coef_scaled, &ds_coef_man, &ds_coef_exp);
887 OS_REG_RMW_FIELD(ah, AR_PHY_HALFGI,
888 AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
889 OS_REG_RMW_FIELD(ah, AR_PHY_HALFGI,
890 AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
891 #undef INIT_CLOCKMHZSCALED
895 * Set a limit on the overall output power. Used for dynamic
896 * transmit power control and the like.
898 * NB: limit is in units of 0.5 dbM.
901 ar5416SetTxPowerLimit(struct ath_hal *ah, uint32_t limit)
903 uint16_t dummyXpdGains[2];
905 AH_PRIVATE(ah)->ah_powerLimit = AH_MIN(limit, MAX_RATE_POWER);
906 return ah->ah_setTxPower(ah, AH_PRIVATE(ah)->ah_curchan,
911 ar5416GetChipPowerLimits(struct ath_hal *ah,
912 struct ieee80211_channel *chan)
914 struct ath_hal_5212 *ahp = AH5212(ah);
915 int16_t minPower, maxPower;
918 * Get Pier table max and min powers.
920 if (ahp->ah_rfHal->getChannelMaxMinPower(ah, chan, &maxPower, &minPower)) {
921 /* NB: rf code returns 1/4 dBm units, convert */
922 chan->ic_maxpower = maxPower / 2;
923 chan->ic_minpower = minPower / 2;
925 HALDEBUG(ah, HAL_DEBUG_ANY,
926 "%s: no min/max power for %u/0x%x\n",
927 __func__, chan->ic_freq, chan->ic_flags);
928 chan->ic_maxpower = AR5416_MAX_RATE_POWER;
929 chan->ic_minpower = 0;
931 HALDEBUG(ah, HAL_DEBUG_RESET,
932 "Chan %d: MaxPow = %d MinPow = %d\n",
933 chan->ic_freq, chan->ic_maxpower, chan->ic_minpower);
937 /**************************************************************
938 * ar5416WriteTxPowerRateRegisters
940 * Write the TX power rate registers from the raw values given
943 * The CCK and HT40 rate registers are only written if needed.
944 * HT20 and 11g/11a OFDM rate registers are always written.
946 * The values written are raw values which should be written
947 * to the registers - so it's up to the caller to pre-adjust
948 * them (eg CCK power offset value, or Merlin TX power offset,
952 ar5416WriteTxPowerRateRegisters(struct ath_hal *ah,
953 const struct ieee80211_channel *chan, const int16_t ratesArray[])
955 #define POW_SM(_r, _s) (((_r) & 0x3f) << (_s))
957 /* Write the OFDM power per rate set */
958 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE1,
959 POW_SM(ratesArray[rate18mb], 24)
960 | POW_SM(ratesArray[rate12mb], 16)
961 | POW_SM(ratesArray[rate9mb], 8)
962 | POW_SM(ratesArray[rate6mb], 0)
964 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE2,
965 POW_SM(ratesArray[rate54mb], 24)
966 | POW_SM(ratesArray[rate48mb], 16)
967 | POW_SM(ratesArray[rate36mb], 8)
968 | POW_SM(ratesArray[rate24mb], 0)
971 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
972 /* Write the CCK power per rate set */
973 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE3,
974 POW_SM(ratesArray[rate2s], 24)
975 | POW_SM(ratesArray[rate2l], 16)
976 | POW_SM(ratesArray[rateXr], 8) /* XR target power */
977 | POW_SM(ratesArray[rate1l], 0)
979 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE4,
980 POW_SM(ratesArray[rate11s], 24)
981 | POW_SM(ratesArray[rate11l], 16)
982 | POW_SM(ratesArray[rate5_5s], 8)
983 | POW_SM(ratesArray[rate5_5l], 0)
985 HALDEBUG(ah, HAL_DEBUG_RESET,
986 "%s AR_PHY_POWER_TX_RATE3=0x%x AR_PHY_POWER_TX_RATE4=0x%x\n",
987 __func__, OS_REG_READ(ah,AR_PHY_POWER_TX_RATE3),
988 OS_REG_READ(ah,AR_PHY_POWER_TX_RATE4));
991 /* Write the HT20 power per rate set */
992 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE5,
993 POW_SM(ratesArray[rateHt20_3], 24)
994 | POW_SM(ratesArray[rateHt20_2], 16)
995 | POW_SM(ratesArray[rateHt20_1], 8)
996 | POW_SM(ratesArray[rateHt20_0], 0)
998 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE6,
999 POW_SM(ratesArray[rateHt20_7], 24)
1000 | POW_SM(ratesArray[rateHt20_6], 16)
1001 | POW_SM(ratesArray[rateHt20_5], 8)
1002 | POW_SM(ratesArray[rateHt20_4], 0)
1005 if (IEEE80211_IS_CHAN_HT40(chan)) {
1006 /* Write the HT40 power per rate set */
1007 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE7,
1008 POW_SM(ratesArray[rateHt40_3], 24)
1009 | POW_SM(ratesArray[rateHt40_2], 16)
1010 | POW_SM(ratesArray[rateHt40_1], 8)
1011 | POW_SM(ratesArray[rateHt40_0], 0)
1013 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE8,
1014 POW_SM(ratesArray[rateHt40_7], 24)
1015 | POW_SM(ratesArray[rateHt40_6], 16)
1016 | POW_SM(ratesArray[rateHt40_5], 8)
1017 | POW_SM(ratesArray[rateHt40_4], 0)
1019 /* Write the Dup/Ext 40 power per rate set */
1020 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE9,
1021 POW_SM(ratesArray[rateExtOfdm], 24)
1022 | POW_SM(ratesArray[rateExtCck], 16)
1023 | POW_SM(ratesArray[rateDupOfdm], 8)
1024 | POW_SM(ratesArray[rateDupCck], 0)
1029 * Set max power to 30 dBm and, optionally,
1030 * enable TPC in tx descriptors.
1032 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE_MAX, MAX_RATE_POWER |
1033 (AH5212(ah)->ah_tpcEnabled ? AR_PHY_POWER_TX_RATE_MAX_TPC_ENABLE : 0));
1038 /**************************************************************
1039 * ar5416SetTransmitPower
1041 * Set the transmit power in the baseband for the given
1042 * operating channel and mode.
1045 ar5416SetTransmitPower(struct ath_hal *ah,
1046 const struct ieee80211_channel *chan, uint16_t *rfXpdGain)
1048 #define N(a) (sizeof (a) / sizeof (a[0]))
1049 #define POW_SM(_r, _s) (((_r) & 0x3f) << (_s))
1051 MODAL_EEP_HEADER *pModal;
1052 struct ath_hal_5212 *ahp = AH5212(ah);
1053 int16_t txPowerIndexOffset = 0;
1057 uint16_t powerLimit;
1058 uint16_t twiceAntennaReduction;
1059 uint16_t twiceMaxRegulatoryPower;
1061 HAL_EEPROM_v14 *ee = AH_PRIVATE(ah)->ah_eeprom;
1062 struct ar5416eeprom *pEepData = &ee->ee_base;
1064 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER14_1);
1067 * Default to 2, is overridden based on the EEPROM version / value.
1069 AH5416(ah)->ah_ht40PowerIncForPdadc = 2;
1071 /* Setup info for the actual eeprom */
1072 OS_MEMZERO(AH5416(ah)->ah_ratesArray, sizeof(AH5416(ah)->ah_ratesArray));
1073 cfgCtl = ath_hal_getctl(ah, chan);
1074 powerLimit = chan->ic_maxregpower * 2;
1075 twiceAntennaReduction = chan->ic_maxantgain;
1076 twiceMaxRegulatoryPower = AH_MIN(MAX_RATE_POWER, AH_PRIVATE(ah)->ah_powerLimit);
1077 pModal = &pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)];
1078 HALDEBUG(ah, HAL_DEBUG_RESET, "%s Channel=%u CfgCtl=%u\n",
1079 __func__,chan->ic_freq, cfgCtl );
1081 if (IS_EEP_MINOR_V2(ah)) {
1082 AH5416(ah)->ah_ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
1085 if (!ar5416SetPowerPerRateTable(ah, pEepData, chan,
1086 &AH5416(ah)->ah_ratesArray[0],
1088 twiceAntennaReduction,
1089 twiceMaxRegulatoryPower, powerLimit)) {
1090 HALDEBUG(ah, HAL_DEBUG_ANY,
1091 "%s: unable to set tx power per rate table\n", __func__);
1095 if (!AH5416(ah)->ah_setPowerCalTable(ah, pEepData, chan, &txPowerIndexOffset)) {
1096 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unable to set power table\n",
1101 maxPower = AH_MAX(AH5416(ah)->ah_ratesArray[rate6mb],
1102 AH5416(ah)->ah_ratesArray[rateHt20_0]);
1104 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
1105 maxPower = AH_MAX(maxPower, AH5416(ah)->ah_ratesArray[rate1l]);
1108 if (IEEE80211_IS_CHAN_HT40(chan)) {
1109 maxPower = AH_MAX(maxPower, AH5416(ah)->ah_ratesArray[rateHt40_0]);
1112 ahp->ah_tx6PowerInHalfDbm = maxPower;
1113 AH_PRIVATE(ah)->ah_maxPowerLevel = maxPower;
1114 ahp->ah_txPowerIndexOffset = txPowerIndexOffset;
1117 * txPowerIndexOffset is set by the SetPowerTable() call -
1118 * adjust the rate table (0 offset if rates EEPROM not loaded)
1120 for (i = 0; i < N(AH5416(ah)->ah_ratesArray); i++) {
1121 AH5416(ah)->ah_ratesArray[i] =
1122 (int16_t)(txPowerIndexOffset + AH5416(ah)->ah_ratesArray[i]);
1123 if (AH5416(ah)->ah_ratesArray[i] > AR5416_MAX_RATE_POWER)
1124 AH5416(ah)->ah_ratesArray[i] = AR5416_MAX_RATE_POWER;
1127 #ifdef AH_EEPROM_DUMP
1129 * Dump the rate array whilst it represents the intended dBm*2
1130 * values versus what's being adjusted before being programmed
1131 * in. Keep this in mind if you code up this function and enable
1132 * this debugging; the values won't necessarily be what's being
1133 * programmed into the hardware.
1135 ar5416PrintPowerPerRate(ah, AH5416(ah)->ah_ratesArray);
1139 * Merlin and later have a power offset, so subtract
1140 * pwr_table_offset * 2 from each value. The default
1141 * power offset is -5 dBm - ie, a register value of 0
1142 * equates to a TX power of -5 dBm.
1144 if (AR_SREV_MERLIN_20_OR_LATER(ah)) {
1145 int8_t pwr_table_offset;
1147 (void) ath_hal_eepromGet(ah, AR_EEP_PWR_TABLE_OFFSET,
1149 /* Underflow power gets clamped at raw value 0 */
1150 /* Overflow power gets camped at AR5416_MAX_RATE_POWER */
1151 for (i = 0; i < N(AH5416(ah)->ah_ratesArray); i++) {
1153 * + pwr_table_offset is in dBm
1154 * + ratesArray is in 1/2 dBm
1156 AH5416(ah)->ah_ratesArray[i] -= (pwr_table_offset * 2);
1157 if (AH5416(ah)->ah_ratesArray[i] < 0)
1158 AH5416(ah)->ah_ratesArray[i] = 0;
1159 else if (AH5416(ah)->ah_ratesArray[i] > AR5416_MAX_RATE_POWER)
1160 AH5416(ah)->ah_ratesArray[i] = AR5416_MAX_RATE_POWER;
1165 * Adjust rates for OLC where needed
1167 * The following CCK rates need adjusting when doing 2.4ghz
1170 * + rate2s, rate2l, rate1l, rate11s, rate11l, rate5_5s, rate5_5l
1171 * + rateExtCck, rateDupCck
1173 * They're adjusted here regardless. The hardware then gets
1174 * programmed as needed. 5GHz operation doesn't program in CCK
1175 * rates for legacy mode but they seem to be initialised for
1176 * HT40 regardless of channel type.
1178 if (AR_SREV_MERLIN_20_OR_LATER(ah) &&
1179 ath_hal_eepromGetFlag(ah, AR_EEP_OL_PWRCTRL)) {
1181 rate2s, rate2l, rate1l, rate11s, rate11l,
1182 rate5_5s, rate5_5l, rateExtCck, rateDupCck
1184 int cck_ofdm_delta = 2;
1186 for (i = 0; i < N(adj); i++) {
1187 AH5416(ah)->ah_ratesArray[adj[i]] -= cck_ofdm_delta;
1188 if (AH5416(ah)->ah_ratesArray[adj[i]] < 0)
1189 AH5416(ah)->ah_ratesArray[adj[i]] = 0;
1194 * Adjust the HT40 power to meet the correct target TX power
1195 * for 40MHz mode, based on TX power curves that are established
1198 * XXX handle overflow/too high power level?
1200 if (IEEE80211_IS_CHAN_HT40(chan)) {
1201 AH5416(ah)->ah_ratesArray[rateHt40_0] +=
1202 AH5416(ah)->ah_ht40PowerIncForPdadc;
1203 AH5416(ah)->ah_ratesArray[rateHt40_1] +=
1204 AH5416(ah)->ah_ht40PowerIncForPdadc;
1205 AH5416(ah)->ah_ratesArray[rateHt40_2] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1206 AH5416(ah)->ah_ratesArray[rateHt40_3] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1207 AH5416(ah)->ah_ratesArray[rateHt40_4] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1208 AH5416(ah)->ah_ratesArray[rateHt40_5] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1209 AH5416(ah)->ah_ratesArray[rateHt40_6] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1210 AH5416(ah)->ah_ratesArray[rateHt40_7] += AH5416(ah)->ah_ht40PowerIncForPdadc;
1213 /* Write the TX power rate registers */
1214 ar5416WriteTxPowerRateRegisters(ah, chan, AH5416(ah)->ah_ratesArray);
1216 /* Write the Power subtraction for dynamic chain changing, for per-packet powertx */
1217 OS_REG_WRITE(ah, AR_PHY_POWER_TX_SUB,
1218 POW_SM(pModal->pwrDecreaseFor3Chain, 6)
1219 | POW_SM(pModal->pwrDecreaseFor2Chain, 0)
1227 * Exported call to check for a recent gain reading and return
1228 * the current state of the thermal calibration gain engine.
1231 ar5416GetRfgain(struct ath_hal *ah)
1234 return (HAL_RFGAIN_INACTIVE);
1238 * Places all of hardware into reset
1241 ar5416Disable(struct ath_hal *ah)
1244 if (!ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
1246 if (! ar5416SetResetReg(ah, HAL_RESET_COLD))
1249 AH5416(ah)->ah_initPLL(ah, AH_NULL);
1254 * Places the PHY and Radio chips into reset. A full reset
1255 * must be called to leave this state. The PCI/MAC/PCU are
1256 * not placed into reset as we must receive interrupt to
1257 * re-enable the hardware.
1260 ar5416PhyDisable(struct ath_hal *ah)
1263 if (! ar5416SetResetReg(ah, HAL_RESET_WARM))
1266 AH5416(ah)->ah_initPLL(ah, AH_NULL);
1271 * Write the given reset bit mask into the reset register
1274 ar5416SetResetReg(struct ath_hal *ah, uint32_t type)
1279 OS_REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1280 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1283 case HAL_RESET_POWER_ON:
1284 return ar5416SetResetPowerOn(ah);
1285 case HAL_RESET_WARM:
1286 case HAL_RESET_COLD:
1287 return ar5416SetReset(ah, type);
1289 HALASSERT(AH_FALSE);
1295 ar5416SetResetPowerOn(struct ath_hal *ah)
1297 /* Power On Reset (Hard Reset) */
1302 * If the MAC was running, previously calling
1303 * reset will wake up the MAC but it may go back to sleep
1304 * before we can start polling.
1305 * Set force wake stops that
1306 * This must be called before initiating a hard reset.
1308 OS_REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1309 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1312 * PowerOn reset can be used in open loop power control or failure recovery.
1313 * If we do RTC reset while DMA is still running, hardware may corrupt memory.
1314 * Therefore, we need to reset AHB first to stop DMA.
1316 if (! AR_SREV_HOWL(ah))
1317 OS_REG_WRITE(ah, AR_RC, AR_RC_AHB);
1319 * RTC reset and clear
1321 OS_REG_WRITE(ah, AR_RTC_RESET, 0);
1324 if (! AR_SREV_HOWL(ah))
1325 OS_REG_WRITE(ah, AR_RC, 0);
1327 OS_REG_WRITE(ah, AR_RTC_RESET, 1);
1330 * Poll till RTC is ON
1332 if (!ath_hal_wait(ah, AR_RTC_STATUS, AR_RTC_PM_STATUS_M, AR_RTC_STATUS_ON)) {
1333 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: RTC not waking up\n", __func__);
1337 return ar5416SetReset(ah, HAL_RESET_COLD);
1341 ar5416SetReset(struct ath_hal *ah, int type)
1343 uint32_t tmpReg, mask;
1346 #ifdef AH_SUPPORT_AR9130 /* Because of the AR9130 specific registers */
1347 if (AR_SREV_HOWL(ah)) {
1348 HALDEBUG(ah, HAL_DEBUG_ANY, "[ath] HOWL: Fiddling with derived clk!\n");
1349 uint32_t val = OS_REG_READ(ah, AR_RTC_DERIVED_CLK);
1350 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1351 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1352 OS_REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1353 (void) OS_REG_READ(ah, AR_RTC_DERIVED_CLK);
1355 #endif /* AH_SUPPORT_AR9130 */
1360 OS_REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1361 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1363 #ifdef AH_SUPPORT_AR9130
1364 if (AR_SREV_HOWL(ah)) {
1365 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1366 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1368 #endif /* AH_SUPPORT_AR9130 */
1372 * (In case the last interrupt source was a bus timeout.)
1373 * XXX TODO: this is not the way to do it! It should be recorded
1374 * XXX by the interrupt handler and passed _into_ the
1375 * XXX reset path routine so this occurs.
1377 tmpReg = OS_REG_READ(ah, AR_INTR_SYNC_CAUSE);
1378 if (tmpReg & (AR_INTR_SYNC_LOCAL_TIMEOUT|AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1379 OS_REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1380 OS_REG_WRITE(ah, AR_RC, AR_RC_AHB|AR_RC_HOSTIF);
1382 OS_REG_WRITE(ah, AR_RC, AR_RC_AHB);
1384 rst_flags = AR_RTC_RC_MAC_WARM;
1385 if (type == HAL_RESET_COLD)
1386 rst_flags |= AR_RTC_RC_MAC_COLD;
1387 #ifdef AH_SUPPORT_AR9130
1389 #endif /* AH_SUPPORT_AR9130 */
1391 OS_REG_WRITE(ah, AR_RTC_RC, rst_flags);
1393 if (AR_SREV_HOWL(ah))
1399 * Clear resets and force wakeup
1401 OS_REG_WRITE(ah, AR_RTC_RC, 0);
1402 if (!ath_hal_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0)) {
1403 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: RTC stuck in MAC reset\n", __func__);
1407 /* Clear AHB reset */
1408 if (! AR_SREV_HOWL(ah))
1409 OS_REG_WRITE(ah, AR_RC, 0);
1411 if (AR_SREV_HOWL(ah))
1414 if (AR_SREV_HOWL(ah)) {
1416 mask = OS_REG_READ(ah, AR_CFG);
1417 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1418 HALDEBUG(ah, HAL_DEBUG_RESET,
1419 "CFG Byte Swap Set 0x%x\n", mask);
1422 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1423 OS_REG_WRITE(ah, AR_CFG, mask);
1424 HALDEBUG(ah, HAL_DEBUG_RESET,
1425 "Setting CFG 0x%x\n", OS_REG_READ(ah, AR_CFG));
1428 if (type == HAL_RESET_COLD) {
1429 if (isBigEndian()) {
1431 * Set CFG, little-endian for descriptor accesses.
1433 mask = INIT_CONFIG_STATUS | AR_CFG_SWRD;
1434 #ifndef AH_NEED_DESC_SWAP
1435 mask |= AR_CFG_SWTD;
1437 HALDEBUG(ah, HAL_DEBUG_RESET,
1438 "%s Applying descriptor swap\n", __func__);
1439 OS_REG_WRITE(ah, AR_CFG, mask);
1441 OS_REG_WRITE(ah, AR_CFG, INIT_CONFIG_STATUS);
1449 ar5416InitChainMasks(struct ath_hal *ah)
1451 int rx_chainmask = AH5416(ah)->ah_rx_chainmask;
1453 /* Flip this for this chainmask regardless of chip */
1454 if (rx_chainmask == 0x5)
1455 OS_REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP, AR_PHY_SWAP_ALT_CHAIN);
1458 * Workaround for OWL 1.0 calibration failure; enable multi-chain;
1459 * then set true mask after calibration.
1461 if (IS_5416V1(ah) && (rx_chainmask == 0x5 || rx_chainmask == 0x3)) {
1462 OS_REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1463 OS_REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1465 OS_REG_WRITE(ah, AR_PHY_RX_CHAINMASK, AH5416(ah)->ah_rx_chainmask);
1466 OS_REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, AH5416(ah)->ah_rx_chainmask);
1468 OS_REG_WRITE(ah, AR_SELFGEN_MASK, AH5416(ah)->ah_tx_chainmask);
1470 if (AH5416(ah)->ah_tx_chainmask == 0x5)
1471 OS_REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP, AR_PHY_SWAP_ALT_CHAIN);
1473 if (AR_SREV_HOWL(ah)) {
1474 OS_REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1475 OS_REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1480 * Work-around for Owl 1.0 calibration failure.
1482 * ar5416InitChainMasks sets the RX chainmask to 0x7 if it's Owl 1.0
1483 * due to init calibration failures. ar5416RestoreChainMask restores
1484 * these registers to the correct setting.
1487 ar5416RestoreChainMask(struct ath_hal *ah)
1489 int rx_chainmask = AH5416(ah)->ah_rx_chainmask;
1491 if (IS_5416V1(ah) && (rx_chainmask == 0x5 || rx_chainmask == 0x3)) {
1492 OS_REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1493 OS_REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1498 ar5416InitPLL(struct ath_hal *ah, const struct ieee80211_channel *chan)
1500 uint32_t pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1501 if (chan != AH_NULL) {
1502 if (IEEE80211_IS_CHAN_HALF(chan))
1503 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1504 else if (IEEE80211_IS_CHAN_QUARTER(chan))
1505 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1507 if (IEEE80211_IS_CHAN_5GHZ(chan))
1508 pll |= SM(0xa, AR_RTC_PLL_DIV);
1510 pll |= SM(0xb, AR_RTC_PLL_DIV);
1512 pll |= SM(0xb, AR_RTC_PLL_DIV);
1514 OS_REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1517 * For multi-band owl, switch between bands by reiniting the PLL.
1520 OS_DELAY(RTC_PLL_SETTLE_DELAY);
1522 OS_REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_SLEEP_DERIVED_CLK);
1526 ar5416SetDefGainValues(struct ath_hal *ah,
1527 const MODAL_EEP_HEADER *pModal,
1528 const struct ar5416eeprom *eep,
1529 uint8_t txRxAttenLocal, int regChainOffset, int i)
1532 if (IS_EEP_MINOR_V3(ah)) {
1533 txRxAttenLocal = pModal->txRxAttenCh[i];
1535 if (AR_SREV_MERLIN_10_OR_LATER(ah)) {
1536 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1537 AR_PHY_GAIN_2GHZ_XATTEN1_MARGIN,
1538 pModal->bswMargin[i]);
1539 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1540 AR_PHY_GAIN_2GHZ_XATTEN1_DB,
1541 pModal->bswAtten[i]);
1542 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1543 AR_PHY_GAIN_2GHZ_XATTEN2_MARGIN,
1544 pModal->xatten2Margin[i]);
1545 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1546 AR_PHY_GAIN_2GHZ_XATTEN2_DB,
1547 pModal->xatten2Db[i]);
1549 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1550 AR_PHY_GAIN_2GHZ_BSW_MARGIN,
1551 pModal->bswMargin[i]);
1552 OS_REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
1553 AR_PHY_GAIN_2GHZ_BSW_ATTEN,
1554 pModal->bswAtten[i]);
1558 if (AR_SREV_MERLIN_10_OR_LATER(ah)) {
1559 OS_REG_RMW_FIELD(ah,
1560 AR_PHY_RXGAIN + regChainOffset,
1561 AR9280_PHY_RXGAIN_TXRX_ATTEN, txRxAttenLocal);
1562 OS_REG_RMW_FIELD(ah,
1563 AR_PHY_RXGAIN + regChainOffset,
1564 AR9280_PHY_RXGAIN_TXRX_MARGIN, pModal->rxTxMarginCh[i]);
1566 OS_REG_RMW_FIELD(ah,
1567 AR_PHY_RXGAIN + regChainOffset,
1568 AR_PHY_RXGAIN_TXRX_ATTEN, txRxAttenLocal);
1569 OS_REG_RMW_FIELD(ah,
1570 AR_PHY_GAIN_2GHZ + regChainOffset,
1571 AR_PHY_GAIN_2GHZ_RXTX_MARGIN, pModal->rxTxMarginCh[i]);
1576 * Get the register chain offset for the given chain.
1578 * Take into account the register chain swapping with AR5416 v2.0.
1580 * XXX make sure that the reg chain swapping is only done for
1581 * XXX AR5416 v2.0 or greater, and not later chips?
1584 ar5416GetRegChainOffset(struct ath_hal *ah, int i)
1588 if (AR_SREV_5416_V20_OR_LATER(ah) &&
1589 (AH5416(ah)->ah_rx_chainmask == 0x5 ||
1590 AH5416(ah)->ah_tx_chainmask == 0x5) && (i != 0)) {
1591 /* Regs are swapped from chain 2 to 1 for 5416 2_0 with
1592 * only chains 0 and 2 populated
1594 regChainOffset = (i == 1) ? 0x2000 : 0x1000;
1596 regChainOffset = i * 0x1000;
1599 return regChainOffset;
1603 * Read EEPROM header info and program the device for correct operation
1604 * given the channel value.
1607 ar5416SetBoardValues(struct ath_hal *ah, const struct ieee80211_channel *chan)
1609 const HAL_EEPROM_v14 *ee = AH_PRIVATE(ah)->ah_eeprom;
1610 const struct ar5416eeprom *eep = &ee->ee_base;
1611 const MODAL_EEP_HEADER *pModal;
1612 int i, regChainOffset;
1613 uint8_t txRxAttenLocal; /* workaround for eeprom versions <= 14.2 */
1615 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER14_1);
1616 pModal = &eep->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)];
1618 /* NB: workaround for eeprom versions <= 14.2 */
1619 txRxAttenLocal = IEEE80211_IS_CHAN_2GHZ(chan) ? 23 : 44;
1621 OS_REG_WRITE(ah, AR_PHY_SWITCH_COM, pModal->antCtrlCommon);
1622 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
1623 if (AR_SREV_MERLIN(ah)) {
1626 regChainOffset = ar5416GetRegChainOffset(ah, i);
1628 OS_REG_WRITE(ah, AR_PHY_SWITCH_CHAIN_0 + regChainOffset, pModal->antCtrlChain[i]);
1630 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4 + regChainOffset,
1631 (OS_REG_READ(ah, AR_PHY_TIMING_CTRL4 + regChainOffset) &
1632 ~(AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF | AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF)) |
1633 SM(pModal->iqCalICh[i], AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) |
1634 SM(pModal->iqCalQCh[i], AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF));
1637 * Large signal upgrade,
1638 * If 14.3 or later EEPROM, use
1639 * txRxAttenLocal = pModal->txRxAttenCh[i]
1640 * else txRxAttenLocal is fixed value above.
1643 if ((i == 0) || AR_SREV_5416_V20_OR_LATER(ah))
1644 ar5416SetDefGainValues(ah, pModal, eep, txRxAttenLocal, regChainOffset, i);
1648 if (AR_SREV_MERLIN_10_OR_LATER(ah)) {
1649 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
1650 OS_A_REG_RMW_FIELD(ah, AR_AN_RF2G1_CH0, AR_AN_RF2G1_CH0_OB, pModal->ob);
1651 OS_A_REG_RMW_FIELD(ah, AR_AN_RF2G1_CH0, AR_AN_RF2G1_CH0_DB, pModal->db);
1652 OS_A_REG_RMW_FIELD(ah, AR_AN_RF2G1_CH1, AR_AN_RF2G1_CH1_OB, pModal->ob_ch1);
1653 OS_A_REG_RMW_FIELD(ah, AR_AN_RF2G1_CH1, AR_AN_RF2G1_CH1_DB, pModal->db_ch1);
1655 OS_A_REG_RMW_FIELD(ah, AR_AN_RF5G1_CH0, AR_AN_RF5G1_CH0_OB5, pModal->ob);
1656 OS_A_REG_RMW_FIELD(ah, AR_AN_RF5G1_CH0, AR_AN_RF5G1_CH0_DB5, pModal->db);
1657 OS_A_REG_RMW_FIELD(ah, AR_AN_RF5G1_CH1, AR_AN_RF5G1_CH1_OB5, pModal->ob_ch1);
1658 OS_A_REG_RMW_FIELD(ah, AR_AN_RF5G1_CH1, AR_AN_RF5G1_CH1_DB5, pModal->db_ch1);
1660 OS_A_REG_RMW_FIELD(ah, AR_AN_TOP2, AR_AN_TOP2_XPABIAS_LVL, pModal->xpaBiasLvl);
1661 OS_A_REG_RMW_FIELD(ah, AR_AN_TOP2, AR_AN_TOP2_LOCALBIAS,
1662 !!(pModal->flagBits & AR5416_EEP_FLAG_LOCALBIAS));
1663 OS_A_REG_RMW_FIELD(ah, AR_PHY_XPA_CFG, AR_PHY_FORCE_XPA_CFG,
1664 !!(pModal->flagBits & AR5416_EEP_FLAG_FORCEXPAON));
1667 OS_REG_RMW_FIELD(ah, AR_PHY_SETTLING, AR_PHY_SETTLING_SWITCH, pModal->switchSettling);
1668 OS_REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ, AR_PHY_DESIRED_SZ_ADC, pModal->adcDesiredSize);
1670 if (! AR_SREV_MERLIN_10_OR_LATER(ah))
1671 OS_REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ, AR_PHY_DESIRED_SZ_PGA, pModal->pgaDesiredSize);
1673 OS_REG_WRITE(ah, AR_PHY_RF_CTL4,
1674 SM(pModal->txEndToXpaOff, AR_PHY_RF_CTL4_TX_END_XPAA_OFF)
1675 | SM(pModal->txEndToXpaOff, AR_PHY_RF_CTL4_TX_END_XPAB_OFF)
1676 | SM(pModal->txFrameToXpaOn, AR_PHY_RF_CTL4_FRAME_XPAA_ON)
1677 | SM(pModal->txFrameToXpaOn, AR_PHY_RF_CTL4_FRAME_XPAB_ON));
1679 OS_REG_RMW_FIELD(ah, AR_PHY_RF_CTL3, AR_PHY_TX_END_TO_A2_RX_ON,
1680 pModal->txEndToRxOn);
1682 if (AR_SREV_MERLIN_10_OR_LATER(ah)) {
1683 OS_REG_RMW_FIELD(ah, AR_PHY_CCA, AR9280_PHY_CCA_THRESH62,
1685 OS_REG_RMW_FIELD(ah, AR_PHY_EXT_CCA0, AR_PHY_EXT_CCA0_THRESH62,
1688 OS_REG_RMW_FIELD(ah, AR_PHY_CCA, AR_PHY_CCA_THRESH62,
1690 OS_REG_RMW_FIELD(ah, AR_PHY_EXT_CCA, AR_PHY_EXT_CCA_THRESH62,
1694 /* Minor Version Specific application */
1695 if (IS_EEP_MINOR_V2(ah)) {
1696 OS_REG_RMW_FIELD(ah, AR_PHY_RF_CTL2, AR_PHY_TX_FRAME_TO_DATA_START,
1697 pModal->txFrameToDataStart);
1698 OS_REG_RMW_FIELD(ah, AR_PHY_RF_CTL2, AR_PHY_TX_FRAME_TO_PA_ON,
1699 pModal->txFrameToPaOn);
1702 if (IS_EEP_MINOR_V3(ah) && IEEE80211_IS_CHAN_HT40(chan))
1703 /* Overwrite switch settling with HT40 value */
1704 OS_REG_RMW_FIELD(ah, AR_PHY_SETTLING, AR_PHY_SETTLING_SWITCH,
1705 pModal->swSettleHt40);
1707 if (AR_SREV_MERLIN_20_OR_LATER(ah) && EEP_MINOR(ah) >= AR5416_EEP_MINOR_VER_19)
1708 OS_REG_RMW_FIELD(ah, AR_PHY_CCK_TX_CTRL, AR_PHY_CCK_TX_CTRL_TX_DAC_SCALE_CCK, pModal->miscBits);
1710 if (AR_SREV_MERLIN_20(ah) && EEP_MINOR(ah) >= AR5416_EEP_MINOR_VER_20) {
1711 if (IEEE80211_IS_CHAN_2GHZ(chan))
1712 OS_A_REG_RMW_FIELD(ah, AR_AN_TOP1, AR_AN_TOP1_DACIPMODE,
1713 eep->baseEepHeader.dacLpMode);
1714 else if (eep->baseEepHeader.dacHiPwrMode_5G)
1715 OS_A_REG_RMW_FIELD(ah, AR_AN_TOP1, AR_AN_TOP1_DACIPMODE, 0);
1717 OS_A_REG_RMW_FIELD(ah, AR_AN_TOP1, AR_AN_TOP1_DACIPMODE,
1718 eep->baseEepHeader.dacLpMode);
1722 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, AR_PHY_FRAME_CTL_TX_CLIP,
1723 pModal->miscBits >> 2);
1724 OS_REG_RMW_FIELD(ah, AR_PHY_TX_PWRCTRL9, AR_PHY_TX_DESIRED_SCALE_CCK,
1725 eep->baseEepHeader.desiredScaleCCK);
1732 * Helper functions common for AP/CB/XB
1736 * Set the target power array "ratesArray" from the
1737 * given set of target powers.
1739 * This is used by the various chipset/EEPROM TX power
1743 ar5416SetRatesArrayFromTargetPower(struct ath_hal *ah,
1744 const struct ieee80211_channel *chan,
1745 int16_t *ratesArray,
1746 const CAL_TARGET_POWER_LEG *targetPowerCck,
1747 const CAL_TARGET_POWER_LEG *targetPowerCckExt,
1748 const CAL_TARGET_POWER_LEG *targetPowerOfdm,
1749 const CAL_TARGET_POWER_LEG *targetPowerOfdmExt,
1750 const CAL_TARGET_POWER_HT *targetPowerHt20,
1751 const CAL_TARGET_POWER_HT *targetPowerHt40)
1753 #define N(a) (sizeof(a)/sizeof(a[0]))
1756 /* Blank the rates array, to be consistent */
1757 for (i = 0; i < Ar5416RateSize; i++)
1760 /* Set rates Array from collected data */
1761 ratesArray[rate6mb] = ratesArray[rate9mb] = ratesArray[rate12mb] =
1762 ratesArray[rate18mb] = ratesArray[rate24mb] =
1763 targetPowerOfdm->tPow2x[0];
1764 ratesArray[rate36mb] = targetPowerOfdm->tPow2x[1];
1765 ratesArray[rate48mb] = targetPowerOfdm->tPow2x[2];
1766 ratesArray[rate54mb] = targetPowerOfdm->tPow2x[3];
1767 ratesArray[rateXr] = targetPowerOfdm->tPow2x[0];
1769 for (i = 0; i < N(targetPowerHt20->tPow2x); i++) {
1770 ratesArray[rateHt20_0 + i] = targetPowerHt20->tPow2x[i];
1773 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
1774 ratesArray[rate1l] = targetPowerCck->tPow2x[0];
1775 ratesArray[rate2s] = ratesArray[rate2l] = targetPowerCck->tPow2x[1];
1776 ratesArray[rate5_5s] = ratesArray[rate5_5l] = targetPowerCck->tPow2x[2];
1777 ratesArray[rate11s] = ratesArray[rate11l] = targetPowerCck->tPow2x[3];
1779 if (IEEE80211_IS_CHAN_HT40(chan)) {
1780 for (i = 0; i < N(targetPowerHt40->tPow2x); i++) {
1781 ratesArray[rateHt40_0 + i] = targetPowerHt40->tPow2x[i];
1783 ratesArray[rateDupOfdm] = targetPowerHt40->tPow2x[0];
1784 ratesArray[rateDupCck] = targetPowerHt40->tPow2x[0];
1785 ratesArray[rateExtOfdm] = targetPowerOfdmExt->tPow2x[0];
1786 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
1787 ratesArray[rateExtCck] = targetPowerCckExt->tPow2x[0];
1794 * ar5416SetPowerPerRateTable
1796 * Sets the transmit power in the baseband for the given
1797 * operating channel and mode.
1800 ar5416SetPowerPerRateTable(struct ath_hal *ah, struct ar5416eeprom *pEepData,
1801 const struct ieee80211_channel *chan,
1802 int16_t *ratesArray, uint16_t cfgCtl,
1803 uint16_t AntennaReduction,
1804 uint16_t twiceMaxRegulatoryPower,
1805 uint16_t powerLimit)
1807 #define N(a) (sizeof(a)/sizeof(a[0]))
1808 /* Local defines to distinguish between extension and control CTL's */
1809 #define EXT_ADDITIVE (0x8000)
1810 #define CTL_11A_EXT (CTL_11A | EXT_ADDITIVE)
1811 #define CTL_11G_EXT (CTL_11G | EXT_ADDITIVE)
1812 #define CTL_11B_EXT (CTL_11B | EXT_ADDITIVE)
1814 uint16_t twiceMaxEdgePower = AR5416_MAX_RATE_POWER;
1816 int16_t twiceLargestAntenna;
1818 CAL_TARGET_POWER_LEG targetPowerOfdm, targetPowerCck = {0, {0, 0, 0, 0}};
1819 CAL_TARGET_POWER_LEG targetPowerOfdmExt = {0, {0, 0, 0, 0}}, targetPowerCckExt = {0, {0, 0, 0, 0}};
1820 CAL_TARGET_POWER_HT targetPowerHt20, targetPowerHt40 = {0, {0, 0, 0, 0}};
1821 int16_t scaledPower, minCtlPower;
1823 #define SUB_NUM_CTL_MODES_AT_5G_40 2 /* excluding HT40, EXT-OFDM */
1824 #define SUB_NUM_CTL_MODES_AT_2G_40 3 /* excluding HT40, EXT-OFDM, EXT-CCK */
1825 static const uint16_t ctlModesFor11a[] = {
1826 CTL_11A, CTL_5GHT20, CTL_11A_EXT, CTL_5GHT40
1828 static const uint16_t ctlModesFor11g[] = {
1829 CTL_11B, CTL_11G, CTL_2GHT20, CTL_11B_EXT, CTL_11G_EXT, CTL_2GHT40
1831 const uint16_t *pCtlMode;
1832 uint16_t numCtlModes, ctlMode, freq;
1833 CHAN_CENTERS centers;
1835 ar5416GetChannelCenters(ah, chan, ¢ers);
1837 /* Compute TxPower reduction due to Antenna Gain */
1839 twiceLargestAntenna = AH_MAX(AH_MAX(
1840 pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[0],
1841 pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[1]),
1842 pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[2]);
1844 /* Turn it back on if we need to calculate per chain antenna gain reduction */
1845 /* Use only if the expected gain > 6dbi */
1846 /* Chain 0 is always used */
1847 twiceLargestAntenna = pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[0];
1849 /* Look at antenna gains of Chains 1 and 2 if the TX mask is set */
1850 if (ahp->ah_tx_chainmask & 0x2)
1851 twiceLargestAntenna = AH_MAX(twiceLargestAntenna,
1852 pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[1]);
1854 if (ahp->ah_tx_chainmask & 0x4)
1855 twiceLargestAntenna = AH_MAX(twiceLargestAntenna,
1856 pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].antennaGainCh[2]);
1858 twiceLargestAntenna = (int16_t)AH_MIN((AntennaReduction) - twiceLargestAntenna, 0);
1860 /* XXX setup for 5212 use (really used?) */
1861 ath_hal_eepromSet(ah,
1862 IEEE80211_IS_CHAN_2GHZ(chan) ? AR_EEP_ANTGAINMAX_2 : AR_EEP_ANTGAINMAX_5,
1863 twiceLargestAntenna);
1866 * scaledPower is the minimum of the user input power level and
1867 * the regulatory allowed power level
1869 scaledPower = AH_MIN(powerLimit, twiceMaxRegulatoryPower + twiceLargestAntenna);
1871 /* Reduce scaled Power by number of chains active to get to per chain tx power level */
1872 /* TODO: better value than these? */
1873 switch (owl_get_ntxchains(AH5416(ah)->ah_tx_chainmask)) {
1877 scaledPower -= pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].pwrDecreaseFor2Chain;
1880 scaledPower -= pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].pwrDecreaseFor3Chain;
1883 return AH_FALSE; /* Unsupported number of chains */
1886 scaledPower = AH_MAX(0, scaledPower);
1888 /* Get target powers from EEPROM - our baseline for TX Power */
1889 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
1890 /* Setup for CTL modes */
1891 numCtlModes = N(ctlModesFor11g) - SUB_NUM_CTL_MODES_AT_2G_40; /* CTL_11B, CTL_11G, CTL_2GHT20 */
1892 pCtlMode = ctlModesFor11g;
1894 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPowerCck,
1895 AR5416_NUM_2G_CCK_TARGET_POWERS, &targetPowerCck, 4, AH_FALSE);
1896 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPower2G,
1897 AR5416_NUM_2G_20_TARGET_POWERS, &targetPowerOfdm, 4, AH_FALSE);
1898 ar5416GetTargetPowers(ah, chan, pEepData->calTargetPower2GHT20,
1899 AR5416_NUM_2G_20_TARGET_POWERS, &targetPowerHt20, 8, AH_FALSE);
1901 if (IEEE80211_IS_CHAN_HT40(chan)) {
1902 numCtlModes = N(ctlModesFor11g); /* All 2G CTL's */
1904 ar5416GetTargetPowers(ah, chan, pEepData->calTargetPower2GHT40,
1905 AR5416_NUM_2G_40_TARGET_POWERS, &targetPowerHt40, 8, AH_TRUE);
1906 /* Get target powers for extension channels */
1907 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPowerCck,
1908 AR5416_NUM_2G_CCK_TARGET_POWERS, &targetPowerCckExt, 4, AH_TRUE);
1909 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPower2G,
1910 AR5416_NUM_2G_20_TARGET_POWERS, &targetPowerOfdmExt, 4, AH_TRUE);
1913 /* Setup for CTL modes */
1914 numCtlModes = N(ctlModesFor11a) - SUB_NUM_CTL_MODES_AT_5G_40; /* CTL_11A, CTL_5GHT20 */
1915 pCtlMode = ctlModesFor11a;
1917 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPower5G,
1918 AR5416_NUM_5G_20_TARGET_POWERS, &targetPowerOfdm, 4, AH_FALSE);
1919 ar5416GetTargetPowers(ah, chan, pEepData->calTargetPower5GHT20,
1920 AR5416_NUM_5G_20_TARGET_POWERS, &targetPowerHt20, 8, AH_FALSE);
1922 if (IEEE80211_IS_CHAN_HT40(chan)) {
1923 numCtlModes = N(ctlModesFor11a); /* All 5G CTL's */
1925 ar5416GetTargetPowers(ah, chan, pEepData->calTargetPower5GHT40,
1926 AR5416_NUM_5G_40_TARGET_POWERS, &targetPowerHt40, 8, AH_TRUE);
1927 ar5416GetTargetPowersLeg(ah, chan, pEepData->calTargetPower5G,
1928 AR5416_NUM_5G_20_TARGET_POWERS, &targetPowerOfdmExt, 4, AH_TRUE);
1933 * For MIMO, need to apply regulatory caps individually across dynamically
1934 * running modes: CCK, OFDM, HT20, HT40
1936 * The outer loop walks through each possible applicable runtime mode.
1937 * The inner loop walks through each ctlIndex entry in EEPROM.
1938 * The ctl value is encoded as [7:4] == test group, [3:0] == test mode.
1941 for (ctlMode = 0; ctlMode < numCtlModes; ctlMode++) {
1942 HAL_BOOL isHt40CtlMode = (pCtlMode[ctlMode] == CTL_5GHT40) ||
1943 (pCtlMode[ctlMode] == CTL_2GHT40);
1944 if (isHt40CtlMode) {
1945 freq = centers.ctl_center;
1946 } else if (pCtlMode[ctlMode] & EXT_ADDITIVE) {
1947 freq = centers.ext_center;
1949 freq = centers.ctl_center;
1952 /* walk through each CTL index stored in EEPROM */
1953 for (i = 0; (i < AR5416_NUM_CTLS) && pEepData->ctlIndex[i]; i++) {
1954 uint16_t twiceMinEdgePower;
1956 /* compare test group from regulatory channel list with test mode from pCtlMode list */
1957 if ((((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) == pEepData->ctlIndex[i]) ||
1958 (((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) ==
1959 ((pEepData->ctlIndex[i] & CTL_MODE_M) | SD_NO_CTL))) {
1960 rep = &(pEepData->ctlData[i]);
1961 twiceMinEdgePower = ar5416GetMaxEdgePower(freq,
1962 rep->ctlEdges[owl_get_ntxchains(AH5416(ah)->ah_tx_chainmask) - 1],
1963 IEEE80211_IS_CHAN_2GHZ(chan));
1964 if ((cfgCtl & ~CTL_MODE_M) == SD_NO_CTL) {
1965 /* Find the minimum of all CTL edge powers that apply to this channel */
1966 twiceMaxEdgePower = AH_MIN(twiceMaxEdgePower, twiceMinEdgePower);
1969 twiceMaxEdgePower = twiceMinEdgePower;
1974 minCtlPower = (uint8_t)AH_MIN(twiceMaxEdgePower, scaledPower);
1975 /* Apply ctl mode to correct target power set */
1976 switch(pCtlMode[ctlMode]) {
1978 for (i = 0; i < N(targetPowerCck.tPow2x); i++) {
1979 targetPowerCck.tPow2x[i] = (uint8_t)AH_MIN(targetPowerCck.tPow2x[i], minCtlPower);
1984 for (i = 0; i < N(targetPowerOfdm.tPow2x); i++) {
1985 targetPowerOfdm.tPow2x[i] = (uint8_t)AH_MIN(targetPowerOfdm.tPow2x[i], minCtlPower);
1990 for (i = 0; i < N(targetPowerHt20.tPow2x); i++) {
1991 targetPowerHt20.tPow2x[i] = (uint8_t)AH_MIN(targetPowerHt20.tPow2x[i], minCtlPower);
1995 targetPowerCckExt.tPow2x[0] = (uint8_t)AH_MIN(targetPowerCckExt.tPow2x[0], minCtlPower);
1999 targetPowerOfdmExt.tPow2x[0] = (uint8_t)AH_MIN(targetPowerOfdmExt.tPow2x[0], minCtlPower);
2003 for (i = 0; i < N(targetPowerHt40.tPow2x); i++) {
2004 targetPowerHt40.tPow2x[i] = (uint8_t)AH_MIN(targetPowerHt40.tPow2x[i], minCtlPower);
2011 } /* end ctl mode checking */
2013 /* Set rates Array from collected data */
2014 ar5416SetRatesArrayFromTargetPower(ah, chan, ratesArray,
2018 &targetPowerOfdmExt,
2026 #undef SUB_NUM_CTL_MODES_AT_5G_40
2027 #undef SUB_NUM_CTL_MODES_AT_2G_40
2031 /**************************************************************************
2034 * Get channel value from binary representation held in eeprom
2035 * RETURNS: the frequency in MHz
2038 fbin2freq(uint8_t fbin, HAL_BOOL is2GHz)
2041 * Reserved value 0xFF provides an empty definition both as
2042 * an fbin and as a frequency - do not convert
2044 if (fbin == AR5416_BCHAN_UNUSED) {
2048 return (uint16_t)((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin));
2052 * ar5416GetMaxEdgePower
2054 * Find the maximum conformance test limit for the given channel and CTL info
2057 ar5416GetMaxEdgePower(uint16_t freq, CAL_CTL_EDGES *pRdEdgesPower, HAL_BOOL is2GHz)
2059 uint16_t twiceMaxEdgePower = AR5416_MAX_RATE_POWER;
2062 /* Get the edge power */
2063 for (i = 0; (i < AR5416_NUM_BAND_EDGES) && (pRdEdgesPower[i].bChannel != AR5416_BCHAN_UNUSED) ; i++) {
2065 * If there's an exact channel match or an inband flag set
2066 * on the lower channel use the given rdEdgePower
2068 if (freq == fbin2freq(pRdEdgesPower[i].bChannel, is2GHz)) {
2069 twiceMaxEdgePower = MS(pRdEdgesPower[i].tPowerFlag, CAL_CTL_EDGES_POWER);
2071 } else if ((i > 0) && (freq < fbin2freq(pRdEdgesPower[i].bChannel, is2GHz))) {
2072 if (fbin2freq(pRdEdgesPower[i - 1].bChannel, is2GHz) < freq && (pRdEdgesPower[i - 1].tPowerFlag & CAL_CTL_EDGES_FLAG) != 0) {
2073 twiceMaxEdgePower = MS(pRdEdgesPower[i - 1].tPowerFlag, CAL_CTL_EDGES_POWER);
2075 /* Leave loop - no more affecting edges possible in this monotonic increasing list */
2079 HALASSERT(twiceMaxEdgePower > 0);
2080 return twiceMaxEdgePower;
2083 /**************************************************************
2084 * ar5416GetTargetPowers
2086 * Return the rates of target power for the given target power table
2087 * channel, and number of channels
2090 ar5416GetTargetPowers(struct ath_hal *ah, const struct ieee80211_channel *chan,
2091 CAL_TARGET_POWER_HT *powInfo, uint16_t numChannels,
2092 CAL_TARGET_POWER_HT *pNewPower, uint16_t numRates,
2093 HAL_BOOL isHt40Target)
2097 int matchIndex = -1, lowIndex = -1;
2099 CHAN_CENTERS centers;
2101 ar5416GetChannelCenters(ah, chan, ¢ers);
2102 freq = isHt40Target ? centers.synth_center : centers.ctl_center;
2104 /* Copy the target powers into the temp channel list */
2105 if (freq <= fbin2freq(powInfo[0].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) {
2108 for (i = 0; (i < numChannels) && (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) {
2109 if (freq == fbin2freq(powInfo[i].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) {
2112 } else if ((freq < fbin2freq(powInfo[i].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) &&
2113 (freq > fbin2freq(powInfo[i - 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))))
2119 if ((matchIndex == -1) && (lowIndex == -1)) {
2120 HALASSERT(freq > fbin2freq(powInfo[i - 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan)));
2125 if (matchIndex != -1) {
2126 OS_MEMCPY(pNewPower, &powInfo[matchIndex], sizeof(*pNewPower));
2128 HALASSERT(lowIndex != -1);
2130 * Get the lower and upper channels, target powers,
2131 * and interpolate between them.
2133 clo = fbin2freq(powInfo[lowIndex].bChannel, IEEE80211_IS_CHAN_2GHZ(chan));
2134 chi = fbin2freq(powInfo[lowIndex + 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan));
2136 for (i = 0; i < numRates; i++) {
2137 pNewPower->tPow2x[i] = (uint8_t)ath_ee_interpolate(freq, clo, chi,
2138 powInfo[lowIndex].tPow2x[i], powInfo[lowIndex + 1].tPow2x[i]);
2142 /**************************************************************
2143 * ar5416GetTargetPowersLeg
2145 * Return the four rates of target power for the given target power table
2146 * channel, and number of channels
2149 ar5416GetTargetPowersLeg(struct ath_hal *ah,
2150 const struct ieee80211_channel *chan,
2151 CAL_TARGET_POWER_LEG *powInfo, uint16_t numChannels,
2152 CAL_TARGET_POWER_LEG *pNewPower, uint16_t numRates,
2153 HAL_BOOL isExtTarget)
2157 int matchIndex = -1, lowIndex = -1;
2159 CHAN_CENTERS centers;
2161 ar5416GetChannelCenters(ah, chan, ¢ers);
2162 freq = (isExtTarget) ? centers.ext_center :centers.ctl_center;
2164 /* Copy the target powers into the temp channel list */
2165 if (freq <= fbin2freq(powInfo[0].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) {
2168 for (i = 0; (i < numChannels) && (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) {
2169 if (freq == fbin2freq(powInfo[i].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) {
2172 } else if ((freq < fbin2freq(powInfo[i].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))) &&
2173 (freq > fbin2freq(powInfo[i - 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan))))
2179 if ((matchIndex == -1) && (lowIndex == -1)) {
2180 HALASSERT(freq > fbin2freq(powInfo[i - 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan)));
2185 if (matchIndex != -1) {
2186 OS_MEMCPY(pNewPower, &powInfo[matchIndex], sizeof(*pNewPower));
2188 HALASSERT(lowIndex != -1);
2190 * Get the lower and upper channels, target powers,
2191 * and interpolate between them.
2193 clo = fbin2freq(powInfo[lowIndex].bChannel, IEEE80211_IS_CHAN_2GHZ(chan));
2194 chi = fbin2freq(powInfo[lowIndex + 1].bChannel, IEEE80211_IS_CHAN_2GHZ(chan));
2196 for (i = 0; i < numRates; i++) {
2197 pNewPower->tPow2x[i] = (uint8_t)ath_ee_interpolate(freq, clo, chi,
2198 powInfo[lowIndex].tPow2x[i], powInfo[lowIndex + 1].tPow2x[i]);
2204 * Set the gain boundaries for the given radio chain.
2206 * The gain boundaries tell the hardware at what point in the
2207 * PDADC array to "switch over" from one PD gain setting
2208 * to another. There's also a gain overlap between two
2209 * PDADC array gain curves where there's valid PD values
2210 * for 2 gain settings.
2212 * The hardware uses the gain overlap and gain boundaries
2213 * to determine which gain curve to use for the given
2217 ar5416SetGainBoundariesClosedLoop(struct ath_hal *ah, int i,
2218 uint16_t pdGainOverlap_t2, uint16_t gainBoundaries[])
2222 regChainOffset = ar5416GetRegChainOffset(ah, i);
2224 HALDEBUG(ah, HAL_DEBUG_EEPROM, "%s: chain %d: gainOverlap_t2: %d,"
2225 " gainBoundaries: %d, %d, %d, %d\n", __func__, i, pdGainOverlap_t2,
2226 gainBoundaries[0], gainBoundaries[1], gainBoundaries[2],
2228 OS_REG_WRITE(ah, AR_PHY_TPCRG5 + regChainOffset,
2229 SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
2230 SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
2231 SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
2232 SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
2233 SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
2237 * Get the gain values and the number of gain levels given
2240 * The EEPROM xpdMask determines which power detector gain
2241 * levels were used during calibration. Each of these mask
2242 * bits maps to a fixed gain level in hardware.
2245 ar5416GetXpdGainValues(struct ath_hal *ah, uint16_t xpdMask,
2246 uint16_t xpdGainValues[])
2249 uint16_t numXpdGain = 0;
2251 for (i = 1; i <= AR5416_PD_GAINS_IN_MASK; i++) {
2252 if ((xpdMask >> (AR5416_PD_GAINS_IN_MASK - i)) & 1) {
2253 if (numXpdGain >= AR5416_NUM_PD_GAINS) {
2257 xpdGainValues[numXpdGain] = (uint16_t)(AR5416_PD_GAINS_IN_MASK - i);
2265 * Write the detector gain and biases.
2267 * There are four power detector gain levels. The xpdMask in the EEPROM
2268 * determines which power detector gain levels have TX power calibration
2269 * data associated with them. This function writes the number of
2270 * PD gain levels and their values into the hardware.
2272 * This is valid for all TX chains - the calibration data itself however
2273 * will likely differ per-chain.
2276 ar5416WriteDetectorGainBiases(struct ath_hal *ah, uint16_t numXpdGain,
2277 uint16_t xpdGainValues[])
2279 HALDEBUG(ah, HAL_DEBUG_EEPROM, "%s: numXpdGain: %d,"
2280 " xpdGainValues: %d, %d, %d\n", __func__, numXpdGain,
2281 xpdGainValues[0], xpdGainValues[1], xpdGainValues[2]);
2283 OS_REG_WRITE(ah, AR_PHY_TPCRG1, (OS_REG_READ(ah, AR_PHY_TPCRG1) &
2284 ~(AR_PHY_TPCRG1_NUM_PD_GAIN | AR_PHY_TPCRG1_PD_GAIN_1 |
2285 AR_PHY_TPCRG1_PD_GAIN_2 | AR_PHY_TPCRG1_PD_GAIN_3)) |
2286 SM(numXpdGain - 1, AR_PHY_TPCRG1_NUM_PD_GAIN) |
2287 SM(xpdGainValues[0], AR_PHY_TPCRG1_PD_GAIN_1 ) |
2288 SM(xpdGainValues[1], AR_PHY_TPCRG1_PD_GAIN_2) |
2289 SM(xpdGainValues[2], AR_PHY_TPCRG1_PD_GAIN_3));
2293 * Write the PDADC array to the given radio chain i.
2295 * The 32 PDADC registers are written without any care about
2296 * their contents - so if various chips treat values as "special",
2297 * this routine will not care.
2300 ar5416WritePdadcValues(struct ath_hal *ah, int i, uint8_t pdadcValues[])
2302 int regOffset, regChainOffset;
2306 regChainOffset = ar5416GetRegChainOffset(ah, i);
2307 regOffset = AR_PHY_BASE + (672 << 2) + regChainOffset;
2309 for (j = 0; j < 32; j++) {
2310 reg32 = ((pdadcValues[4*j + 0] & 0xFF) << 0) |
2311 ((pdadcValues[4*j + 1] & 0xFF) << 8) |
2312 ((pdadcValues[4*j + 2] & 0xFF) << 16) |
2313 ((pdadcValues[4*j + 3] & 0xFF) << 24) ;
2314 OS_REG_WRITE(ah, regOffset, reg32);
2315 HALDEBUG(ah, HAL_DEBUG_EEPROM, "PDADC: Chain %d |"
2316 " PDADC %3d Value %3d | PDADC %3d Value %3d | PDADC %3d"
2317 " Value %3d | PDADC %3d Value %3d |\n",
2319 4*j, pdadcValues[4*j],
2320 4*j+1, pdadcValues[4*j + 1],
2321 4*j+2, pdadcValues[4*j + 2],
2322 4*j+3, pdadcValues[4*j + 3]);
2327 /**************************************************************
2328 * ar5416SetPowerCalTable
2330 * Pull the PDADC piers from cal data and interpolate them across the given
2331 * points as well as from the nearest pier(s) to get a power detector
2332 * linear voltage to power level table.
2335 ar5416SetPowerCalTable(struct ath_hal *ah, struct ar5416eeprom *pEepData,
2336 const struct ieee80211_channel *chan, int16_t *pTxPowerIndexOffset)
2338 CAL_DATA_PER_FREQ *pRawDataset;
2339 uint8_t *pCalBChans = AH_NULL;
2340 uint16_t pdGainOverlap_t2;
2341 static uint8_t pdadcValues[AR5416_NUM_PDADC_VALUES];
2342 uint16_t gainBoundaries[AR5416_PD_GAINS_IN_MASK];
2343 uint16_t numPiers, i;
2344 int16_t tMinCalPower;
2345 uint16_t numXpdGain, xpdMask;
2346 uint16_t xpdGainValues[AR5416_NUM_PD_GAINS];
2347 uint32_t regChainOffset;
2349 OS_MEMZERO(xpdGainValues, sizeof(xpdGainValues));
2351 xpdMask = pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].xpdGain;
2353 if (IS_EEP_MINOR_V2(ah)) {
2354 pdGainOverlap_t2 = pEepData->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)].pdGainOverlap;
2356 pdGainOverlap_t2 = (uint16_t)(MS(OS_REG_READ(ah, AR_PHY_TPCRG5), AR_PHY_TPCRG5_PD_GAIN_OVERLAP));
2359 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
2360 pCalBChans = pEepData->calFreqPier2G;
2361 numPiers = AR5416_NUM_2G_CAL_PIERS;
2363 pCalBChans = pEepData->calFreqPier5G;
2364 numPiers = AR5416_NUM_5G_CAL_PIERS;
2367 /* Calculate the value of xpdgains from the xpdGain Mask */
2368 numXpdGain = ar5416GetXpdGainValues(ah, xpdMask, xpdGainValues);
2370 /* Write the detector gain biases and their number */
2371 ar5416WriteDetectorGainBiases(ah, numXpdGain, xpdGainValues);
2373 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
2374 regChainOffset = ar5416GetRegChainOffset(ah, i);
2376 if (pEepData->baseEepHeader.txMask & (1 << i)) {
2377 if (IEEE80211_IS_CHAN_2GHZ(chan)) {
2378 pRawDataset = pEepData->calPierData2G[i];
2380 pRawDataset = pEepData->calPierData5G[i];
2383 /* Fetch the gain boundaries and the PDADC values */
2384 ar5416GetGainBoundariesAndPdadcs(ah, chan, pRawDataset,
2385 pCalBChans, numPiers,
2387 &tMinCalPower, gainBoundaries,
2388 pdadcValues, numXpdGain);
2390 if ((i == 0) || AR_SREV_5416_V20_OR_LATER(ah)) {
2391 ar5416SetGainBoundariesClosedLoop(ah, i, pdGainOverlap_t2,
2395 /* Write the power values into the baseband power table */
2396 ar5416WritePdadcValues(ah, i, pdadcValues);
2399 *pTxPowerIndexOffset = 0;
2404 /**************************************************************
2405 * ar5416GetGainBoundariesAndPdadcs
2407 * Uses the data points read from EEPROM to reconstruct the pdadc power table
2408 * Called by ar5416SetPowerCalTable only.
2411 ar5416GetGainBoundariesAndPdadcs(struct ath_hal *ah,
2412 const struct ieee80211_channel *chan,
2413 CAL_DATA_PER_FREQ *pRawDataSet,
2414 uint8_t * bChans, uint16_t availPiers,
2415 uint16_t tPdGainOverlap, int16_t *pMinCalPower, uint16_t * pPdGainBoundaries,
2416 uint8_t * pPDADCValues, uint16_t numXpdGains)
2420 int16_t ss; /* potentially -ve index for taking care of pdGainOverlap */
2421 uint16_t idxL, idxR, numPiers; /* Pier indexes */
2423 /* filled out Vpd table for all pdGains (chanL) */
2424 static uint8_t vpdTableL[AR5416_NUM_PD_GAINS][AR5416_MAX_PWR_RANGE_IN_HALF_DB];
2426 /* filled out Vpd table for all pdGains (chanR) */
2427 static uint8_t vpdTableR[AR5416_NUM_PD_GAINS][AR5416_MAX_PWR_RANGE_IN_HALF_DB];
2429 /* filled out Vpd table for all pdGains (interpolated) */
2430 static uint8_t vpdTableI[AR5416_NUM_PD_GAINS][AR5416_MAX_PWR_RANGE_IN_HALF_DB];
2432 uint8_t *pVpdL, *pVpdR, *pPwrL, *pPwrR;
2433 uint8_t minPwrT4[AR5416_NUM_PD_GAINS];
2434 uint8_t maxPwrT4[AR5416_NUM_PD_GAINS];
2437 uint16_t sizeCurrVpdTable, maxIndex, tgtIndex;
2439 int16_t minDelta = 0;
2440 CHAN_CENTERS centers;
2442 ar5416GetChannelCenters(ah, chan, ¢ers);
2444 /* Trim numPiers for the number of populated channel Piers */
2445 for (numPiers = 0; numPiers < availPiers; numPiers++) {
2446 if (bChans[numPiers] == AR5416_BCHAN_UNUSED) {
2451 /* Find pier indexes around the current channel */
2452 match = ath_ee_getLowerUpperIndex((uint8_t)FREQ2FBIN(centers.synth_center,
2453 IEEE80211_IS_CHAN_2GHZ(chan)), bChans, numPiers, &idxL, &idxR);
2456 /* Directly fill both vpd tables from the matching index */
2457 for (i = 0; i < numXpdGains; i++) {
2458 minPwrT4[i] = pRawDataSet[idxL].pwrPdg[i][0];
2459 maxPwrT4[i] = pRawDataSet[idxL].pwrPdg[i][4];
2460 ath_ee_FillVpdTable(minPwrT4[i], maxPwrT4[i], pRawDataSet[idxL].pwrPdg[i],
2461 pRawDataSet[idxL].vpdPdg[i], AR5416_PD_GAIN_ICEPTS, vpdTableI[i]);
2464 for (i = 0; i < numXpdGains; i++) {
2465 pVpdL = pRawDataSet[idxL].vpdPdg[i];
2466 pPwrL = pRawDataSet[idxL].pwrPdg[i];
2467 pVpdR = pRawDataSet[idxR].vpdPdg[i];
2468 pPwrR = pRawDataSet[idxR].pwrPdg[i];
2470 /* Start Vpd interpolation from the max of the minimum powers */
2471 minPwrT4[i] = AH_MAX(pPwrL[0], pPwrR[0]);
2473 /* End Vpd interpolation from the min of the max powers */
2474 maxPwrT4[i] = AH_MIN(pPwrL[AR5416_PD_GAIN_ICEPTS - 1], pPwrR[AR5416_PD_GAIN_ICEPTS - 1]);
2475 HALASSERT(maxPwrT4[i] > minPwrT4[i]);
2477 /* Fill pier Vpds */
2478 ath_ee_FillVpdTable(minPwrT4[i], maxPwrT4[i], pPwrL, pVpdL, AR5416_PD_GAIN_ICEPTS, vpdTableL[i]);
2479 ath_ee_FillVpdTable(minPwrT4[i], maxPwrT4[i], pPwrR, pVpdR, AR5416_PD_GAIN_ICEPTS, vpdTableR[i]);
2481 /* Interpolate the final vpd */
2482 for (j = 0; j <= (maxPwrT4[i] - minPwrT4[i]) / 2; j++) {
2483 vpdTableI[i][j] = (uint8_t)(ath_ee_interpolate((uint16_t)FREQ2FBIN(centers.synth_center,
2484 IEEE80211_IS_CHAN_2GHZ(chan)),
2485 bChans[idxL], bChans[idxR], vpdTableL[i][j], vpdTableR[i][j]));
2489 *pMinCalPower = (int16_t)(minPwrT4[0] / 2);
2491 k = 0; /* index for the final table */
2492 for (i = 0; i < numXpdGains; i++) {
2493 if (i == (numXpdGains - 1)) {
2494 pPdGainBoundaries[i] = (uint16_t)(maxPwrT4[i] / 2);
2496 pPdGainBoundaries[i] = (uint16_t)((maxPwrT4[i] + minPwrT4[i+1]) / 4);
2499 pPdGainBoundaries[i] = (uint16_t)AH_MIN(AR5416_MAX_RATE_POWER, pPdGainBoundaries[i]);
2501 /* NB: only applies to owl 1.0 */
2502 if ((i == 0) && !AR_SREV_5416_V20_OR_LATER(ah) ) {
2504 * fix the gain delta, but get a delta that can be applied to min to
2505 * keep the upper power values accurate, don't think max needs to
2506 * be adjusted because should not be at that area of the table?
2508 minDelta = pPdGainBoundaries[0] - 23;
2509 pPdGainBoundaries[0] = 23;
2515 /* Find starting index for this pdGain */
2517 if (AR_SREV_MERLIN_10_OR_LATER(ah))
2518 ss = (int16_t)(0 - (minPwrT4[i] / 2));
2520 ss = 0; /* for the first pdGain, start from index 0 */
2522 /* need overlap entries extrapolated below. */
2523 ss = (int16_t)((pPdGainBoundaries[i-1] - (minPwrT4[i] / 2)) - tPdGainOverlap + 1 + minDelta);
2525 vpdStep = (int16_t)(vpdTableI[i][1] - vpdTableI[i][0]);
2526 vpdStep = (int16_t)((vpdStep < 1) ? 1 : vpdStep);
2528 *-ve ss indicates need to extrapolate data below for this pdGain
2530 while ((ss < 0) && (k < (AR5416_NUM_PDADC_VALUES - 1))) {
2531 tmpVal = (int16_t)(vpdTableI[i][0] + ss * vpdStep);
2532 pPDADCValues[k++] = (uint8_t)((tmpVal < 0) ? 0 : tmpVal);
2536 sizeCurrVpdTable = (uint8_t)((maxPwrT4[i] - minPwrT4[i]) / 2 +1);
2537 tgtIndex = (uint8_t)(pPdGainBoundaries[i] + tPdGainOverlap - (minPwrT4[i] / 2));
2538 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
2540 while ((ss < maxIndex) && (k < (AR5416_NUM_PDADC_VALUES - 1))) {
2541 pPDADCValues[k++] = vpdTableI[i][ss++];
2544 vpdStep = (int16_t)(vpdTableI[i][sizeCurrVpdTable - 1] - vpdTableI[i][sizeCurrVpdTable - 2]);
2545 vpdStep = (int16_t)((vpdStep < 1) ? 1 : vpdStep);
2547 * for last gain, pdGainBoundary == Pmax_t2, so will
2548 * have to extrapolate
2550 if (tgtIndex >= maxIndex) { /* need to extrapolate above */
2551 while ((ss <= tgtIndex) && (k < (AR5416_NUM_PDADC_VALUES - 1))) {
2552 tmpVal = (int16_t)((vpdTableI[i][sizeCurrVpdTable - 1] +
2553 (ss - maxIndex +1) * vpdStep));
2554 pPDADCValues[k++] = (uint8_t)((tmpVal > 255) ? 255 : tmpVal);
2557 } /* extrapolated above */
2558 } /* for all pdGainUsed */
2560 /* Fill out pdGainBoundaries - only up to 2 allowed here, but hardware allows up to 4 */
2561 while (i < AR5416_PD_GAINS_IN_MASK) {
2562 pPdGainBoundaries[i] = pPdGainBoundaries[i-1];
2566 while (k < AR5416_NUM_PDADC_VALUES) {
2567 pPDADCValues[k] = pPDADCValues[k-1];
2574 * The linux ath9k driver and (from what I've been told) the reference
2575 * Atheros driver enables the 11n PHY by default whether or not it's
2579 ar5416Set11nRegs(struct ath_hal *ah, const struct ieee80211_channel *chan)
2582 uint32_t enableDacFifo = 0;
2583 HAL_HT_MACMODE macmode; /* MAC - 20/40 mode */
2585 if (AR_SREV_KITE_10_OR_LATER(ah))
2586 enableDacFifo = (OS_REG_READ(ah, AR_PHY_TURBO) & AR_PHY_FC_ENABLE_DAC_FIFO);
2588 /* Enable 11n HT, 20 MHz */
2589 phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
2590 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
2592 /* Configure baseband for dynamic 20/40 operation */
2593 if (IEEE80211_IS_CHAN_HT40(chan)) {
2594 phymode |= AR_PHY_FC_DYN2040_EN;
2596 /* Configure control (primary) channel at +-10MHz */
2597 if (IEEE80211_IS_CHAN_HT40U(chan))
2598 phymode |= AR_PHY_FC_DYN2040_PRI_CH;
2600 /* Configure 20/25 spacing */
2601 if (ht->ht_extprotspacing == HAL_HT_EXTPROTSPACING_25)
2602 phymode |= AR_PHY_FC_DYN2040_EXT_CH;
2604 macmode = HAL_HT_MACMODE_2040;
2606 macmode = HAL_HT_MACMODE_20;
2607 OS_REG_WRITE(ah, AR_PHY_TURBO, phymode);
2609 /* Configure MAC for 20/40 operation */
2610 ar5416Set11nMac2040(ah, macmode);
2612 /* global transmit timeout (25 TUs default)*/
2613 /* XXX - put this elsewhere??? */
2614 OS_REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S) ;
2616 /* carrier sense timeout */
2617 OS_REG_SET_BIT(ah, AR_GTTM, AR_GTTM_CST_USEC);
2618 OS_REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
2622 ar5416GetChannelCenters(struct ath_hal *ah,
2623 const struct ieee80211_channel *chan, CHAN_CENTERS *centers)
2625 uint16_t freq = ath_hal_gethwchannel(ah, chan);
2627 centers->ctl_center = freq;
2628 centers->synth_center = freq;
2630 * In 20/40 phy mode, the center frequency is
2631 * "between" the control and extension channels.
2633 if (IEEE80211_IS_CHAN_HT40U(chan)) {
2634 centers->synth_center += HT40_CHANNEL_CENTER_SHIFT;
2635 centers->ext_center =
2636 centers->synth_center + HT40_CHANNEL_CENTER_SHIFT;
2637 } else if (IEEE80211_IS_CHAN_HT40D(chan)) {
2638 centers->synth_center -= HT40_CHANNEL_CENTER_SHIFT;
2639 centers->ext_center =
2640 centers->synth_center - HT40_CHANNEL_CENTER_SHIFT;
2642 centers->ext_center = freq;
2647 * Override the INI vals being programmed.
2650 ar5416OverrideIni(struct ath_hal *ah, const struct ieee80211_channel *chan)
2655 * Set the RX_ABORT and RX_DIS and clear if off only after
2656 * RXE is set for MAC. This prevents frames with corrupted
2657 * descriptor status.
2659 OS_REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
2661 if (AR_SREV_MERLIN_10_OR_LATER(ah)) {
2662 val = OS_REG_READ(ah, AR_PCU_MISC_MODE2);
2663 val &= (~AR_PCU_MISC_MODE2_ADHOC_MCAST_KEYID_ENABLE);
2664 if (!AR_SREV_9271(ah))
2665 val &= ~AR_PCU_MISC_MODE2_HWWAR1;
2667 if (AR_SREV_KIWI_10_OR_LATER(ah))
2668 val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
2670 OS_REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
2674 * Disable RIFS search on some chips to avoid baseband
2677 if (AR_SREV_HOWL(ah) || AR_SREV_SOWL(ah))
2678 (void) ar5416SetRifsDelay(ah, chan, AH_FALSE);
2680 if (!AR_SREV_5416_V20_OR_LATER(ah) || AR_SREV_MERLIN(ah))
2684 * Disable BB clock gating
2685 * Necessary to avoid issues on AR5416 2.0
2687 OS_REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
2691 uint32_t *data; /* NB: !const */
2696 * Override XPA bias level based on operating frequency.
2697 * This is a v14 EEPROM specific thing for the AR9160.
2700 ar5416EepromSetAddac(struct ath_hal *ah, const struct ieee80211_channel *chan)
2702 #define XPA_LVL_FREQ(cnt) (pModal->xpaBiasLvlFreq[cnt])
2703 MODAL_EEP_HEADER *pModal;
2704 HAL_EEPROM_v14 *ee = AH_PRIVATE(ah)->ah_eeprom;
2705 struct ar5416eeprom *eep = &ee->ee_base;
2708 if (! AR_SREV_SOWL(ah))
2711 if (EEP_MINOR(ah) < AR5416_EEP_MINOR_VER_7)
2714 pModal = &(eep->modalHeader[IEEE80211_IS_CHAN_2GHZ(chan)]);
2716 if (pModal->xpaBiasLvl != 0xff)
2717 biaslevel = pModal->xpaBiasLvl;
2719 uint16_t resetFreqBin, freqBin, freqCount = 0;
2720 CHAN_CENTERS centers;
2722 ar5416GetChannelCenters(ah, chan, ¢ers);
2724 resetFreqBin = FREQ2FBIN(centers.synth_center, IEEE80211_IS_CHAN_2GHZ(chan));
2725 freqBin = XPA_LVL_FREQ(0) & 0xff;
2726 biaslevel = (uint8_t) (XPA_LVL_FREQ(0) >> 14);
2730 while (freqCount < 3) {
2731 if (XPA_LVL_FREQ(freqCount) == 0x0)
2734 freqBin = XPA_LVL_FREQ(freqCount) & 0xff;
2735 if (resetFreqBin >= freqBin)
2736 biaslevel = (uint8_t)(XPA_LVL_FREQ(freqCount) >> 14);
2743 HALDEBUG(ah, HAL_DEBUG_EEPROM, "%s: overriding XPA bias level = %d\n",
2744 __func__, biaslevel);
2747 * This is a dirty workaround for the const initval data,
2748 * which will upset multiple AR9160's on the same board.
2750 * The HAL should likely just have a private copy of the addac
2751 * data per instance.
2753 if (IEEE80211_IS_CHAN_2GHZ(chan))
2754 HAL_INI_VAL((struct ini *) &AH5416(ah)->ah_ini_addac, 7, 1) =
2755 (HAL_INI_VAL(&AH5416(ah)->ah_ini_addac, 7, 1) & (~0x18)) | biaslevel << 3;
2757 HAL_INI_VAL((struct ini *) &AH5416(ah)->ah_ini_addac, 6, 1) =
2758 (HAL_INI_VAL(&AH5416(ah)->ah_ini_addac, 6, 1) & (~0xc0)) | biaslevel << 6;
2763 ar5416MarkPhyInactive(struct ath_hal *ah)
2765 OS_REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
2768 #define AR5416_IFS_SLOT_FULL_RATE_40 0x168 /* 9 us half, 40 MHz core clock (9*40) */
2769 #define AR5416_IFS_SLOT_HALF_RATE_40 0x104 /* 13 us half, 20 MHz core clock (13*20) */
2770 #define AR5416_IFS_SLOT_QUARTER_RATE_40 0xD2 /* 21 us quarter, 10 MHz core clock (21*10) */
2772 #define AR5416_IFS_EIFS_FULL_RATE_40 0xE60 /* (74 + (2 * 9)) * 40MHz core clock */
2773 #define AR5416_IFS_EIFS_HALF_RATE_40 0xDAC /* (149 + (2 * 13)) * 20MHz core clock */
2774 #define AR5416_IFS_EIFS_QUARTER_RATE_40 0xD48 /* (298 + (2 * 21)) * 10MHz core clock */
2776 #define AR5416_IFS_SLOT_FULL_RATE_44 0x18c /* 9 us half, 44 MHz core clock (9*44) */
2777 #define AR5416_IFS_SLOT_HALF_RATE_44 0x11e /* 13 us half, 22 MHz core clock (13*22) */
2778 #define AR5416_IFS_SLOT_QUARTER_RATE_44 0xe7 /* 21 us quarter, 11 MHz core clock (21*11) */
2780 #define AR5416_IFS_EIFS_FULL_RATE_44 0xfd0 /* (74 + (2 * 9)) * 44MHz core clock */
2781 #define AR5416_IFS_EIFS_HALF_RATE_44 0xf0a /* (149 + (2 * 13)) * 22MHz core clock */
2782 #define AR5416_IFS_EIFS_QUARTER_RATE_44 0xe9c /* (298 + (2 * 21)) * 11MHz core clock */
2784 #define AR5416_INIT_USEC_40 40
2785 #define AR5416_HALF_RATE_USEC_40 19 /* ((40 / 2) - 1 ) */
2786 #define AR5416_QUARTER_RATE_USEC_40 9 /* ((40 / 4) - 1 ) */
2788 #define AR5416_INIT_USEC_44 44
2789 #define AR5416_HALF_RATE_USEC_44 21 /* ((44 / 2) - 1 ) */
2790 #define AR5416_QUARTER_RATE_USEC_44 10 /* ((44 / 4) - 1 ) */
2793 /* XXX What should these be for 40/44MHz clocks (and half/quarter) ? */
2794 #define AR5416_RX_NON_FULL_RATE_LATENCY 63
2795 #define AR5416_TX_HALF_RATE_LATENCY 108
2796 #define AR5416_TX_QUARTER_RATE_LATENCY 216
2799 * Adjust various register settings based on half/quarter rate clock setting.
2802 * + USEC, TX/RX latency,
2803 * + IFS params: slot, eifs, misc etc.
2807 * + Verify which other registers need to be tweaked;
2808 * + Verify the behaviour of this for 5GHz fast and non-fast clock mode;
2809 * + This just plain won't work for long distance links - the coverage class
2810 * code isn't aware of the slot/ifs/ACK/RTS timeout values that need to
2812 * + Verify whether the 32KHz USEC value needs to be kept for the 802.11n
2814 * + Calculate/derive values for 2GHz, 5GHz, 5GHz fast clock
2817 ar5416SetIFSTiming(struct ath_hal *ah, const struct ieee80211_channel *chan)
2819 uint32_t txLat, rxLat, usec, slot, refClock, eifs, init_usec;
2822 HALASSERT(IEEE80211_IS_CHAN_HALF(chan) ||
2823 IEEE80211_IS_CHAN_QUARTER(chan));
2825 /* 2GHz and 5GHz fast clock - 44MHz; else 40MHz */
2826 if (IEEE80211_IS_CHAN_2GHZ(chan))
2828 else if (IEEE80211_IS_CHAN_5GHZ(chan) &&
2829 IS_5GHZ_FAST_CLOCK_EN(ah, chan))
2832 /* XXX does this need save/restoring for the 11n chips? */
2833 refClock = OS_REG_READ(ah, AR_USEC) & AR_USEC_USEC32;
2836 * XXX This really should calculate things, not use
2837 * hard coded values! Ew.
2839 if (IEEE80211_IS_CHAN_HALF(chan)) {
2841 slot = AR5416_IFS_SLOT_HALF_RATE_44;
2842 rxLat = AR5416_RX_NON_FULL_RATE_LATENCY <<
2843 AR5416_USEC_RX_LAT_S;
2844 txLat = AR5416_TX_HALF_RATE_LATENCY <<
2845 AR5416_USEC_TX_LAT_S;
2846 usec = AR5416_HALF_RATE_USEC_44;
2847 eifs = AR5416_IFS_EIFS_HALF_RATE_44;
2848 init_usec = AR5416_INIT_USEC_44 >> 1;
2850 slot = AR5416_IFS_SLOT_HALF_RATE_40;
2851 rxLat = AR5416_RX_NON_FULL_RATE_LATENCY <<
2852 AR5416_USEC_RX_LAT_S;
2853 txLat = AR5416_TX_HALF_RATE_LATENCY <<
2854 AR5416_USEC_TX_LAT_S;
2855 usec = AR5416_HALF_RATE_USEC_40;
2856 eifs = AR5416_IFS_EIFS_HALF_RATE_40;
2857 init_usec = AR5416_INIT_USEC_40 >> 1;
2859 } else { /* quarter rate */
2861 slot = AR5416_IFS_SLOT_QUARTER_RATE_44;
2862 rxLat = AR5416_RX_NON_FULL_RATE_LATENCY <<
2863 AR5416_USEC_RX_LAT_S;
2864 txLat = AR5416_TX_QUARTER_RATE_LATENCY <<
2865 AR5416_USEC_TX_LAT_S;
2866 usec = AR5416_QUARTER_RATE_USEC_44;
2867 eifs = AR5416_IFS_EIFS_QUARTER_RATE_44;
2868 init_usec = AR5416_INIT_USEC_44 >> 2;
2870 slot = AR5416_IFS_SLOT_QUARTER_RATE_40;
2871 rxLat = AR5416_RX_NON_FULL_RATE_LATENCY <<
2872 AR5416_USEC_RX_LAT_S;
2873 txLat = AR5416_TX_QUARTER_RATE_LATENCY <<
2874 AR5416_USEC_TX_LAT_S;
2875 usec = AR5416_QUARTER_RATE_USEC_40;
2876 eifs = AR5416_IFS_EIFS_QUARTER_RATE_40;
2877 init_usec = AR5416_INIT_USEC_40 >> 2;
2881 /* XXX verify these! */
2882 OS_REG_WRITE(ah, AR_USEC, (usec | refClock | txLat | rxLat));
2883 OS_REG_WRITE(ah, AR_D_GBL_IFS_SLOT, slot);
2884 OS_REG_WRITE(ah, AR_D_GBL_IFS_EIFS, eifs);
2885 OS_REG_RMW_FIELD(ah, AR_D_GBL_IFS_MISC,
2886 AR_D_GBL_IFS_MISC_USEC_DURATION, init_usec);