2 * SPDX-License-Identifier: ISC
4 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
5 * Copyright (c) 2002-2004 Atheros Communications, Inc.
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #include "ah_internal.h"
26 #include "ar5210/ar5210.h"
27 #include "ar5210/ar5210reg.h"
28 #include "ar5210/ar5210phy.h"
30 #include "ah_eeprom_v1.h"
37 static const REGISTER_VAL ar5k0007_init[] = {
38 #include "ar5210/ar5k_0007.ini"
41 /* Default Power Settings for channels outside of EEPROM range */
42 static const uint8_t ar5k0007_pwrSettings[17] = {
43 /* gain delta pc dac */
44 /* 54 48 36 24 18 12 9 54 48 36 24 18 12 9 6 ob db */
45 9, 9, 0, 0, 0, 0, 0, 2, 2, 6, 6, 6, 6, 6, 6, 2, 2
49 * The delay, in usecs, between writing AR_RC with a reset
50 * request and waiting for the chip to settle. If this is
51 * too short then the chip does not come out of sleep state.
52 * Note this value was empirically derived and may be dependent
53 * on the host machine (don't know--the problem was identified
54 * on an IBM 570e laptop; 10us delays worked on other systems).
56 #define AR_RC_SETTLE_TIME 20000
58 static HAL_BOOL ar5210SetResetReg(struct ath_hal *,
59 uint32_t resetMask, u_int delay);
60 static HAL_BOOL ar5210SetChannel(struct ath_hal *, struct ieee80211_channel *);
61 static void ar5210SetOperatingMode(struct ath_hal *, int opmode);
64 * Places the device in and out of reset and then places sane
65 * values in the registers based on EEPROM config, initialization
66 * vectors (as determined by the mode), and station configuration
68 * bChannelChange is used to preserve DMA/PCU registers across
69 * a HW Reset during channel change.
72 ar5210Reset(struct ath_hal *ah, HAL_OPMODE opmode,
73 struct ieee80211_channel *chan, HAL_BOOL bChannelChange,
74 HAL_RESET_TYPE resetType,
77 #define N(a) (sizeof (a) /sizeof (a[0]))
78 #define FAIL(_code) do { ecode = _code; goto bad; } while (0)
79 struct ath_hal_5210 *ahp = AH5210(ah);
80 const HAL_EEPROM_v1 *ee = AH_PRIVATE(ah)->ah_eeprom;
81 HAL_CHANNEL_INTERNAL *ichan;
86 HALDEBUG(ah, HAL_DEBUG_RESET,
87 "%s: opmode %u channel %u/0x%x %s channel\n", __func__,
88 opmode, chan->ic_freq, chan->ic_flags,
89 bChannelChange ? "change" : "same");
91 if (!IEEE80211_IS_CHAN_5GHZ(chan)) {
93 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: channel not 5GHz\n", __func__);
97 * Map public channel to private.
99 ichan = ath_hal_checkchannel(ah, chan);
100 if (ichan == AH_NULL) {
101 HALDEBUG(ah, HAL_DEBUG_ANY,
102 "%s: invalid channel %u/0x%x; no mapping\n",
103 __func__, chan->ic_freq, chan->ic_flags);
113 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid operating mode %u\n",
119 ledstate = OS_REG_READ(ah, AR_PCICFG) &
120 (AR_PCICFG_LED_PEND | AR_PCICFG_LED_ACT);
122 if (!ar5210ChipReset(ah, chan)) {
123 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n",
128 OS_REG_WRITE(ah, AR_STA_ID0, LE_READ_4(ahp->ah_macaddr));
129 OS_REG_WRITE(ah, AR_STA_ID1, LE_READ_2(ahp->ah_macaddr + 4));
130 ar5210SetOperatingMode(ah, opmode);
134 OS_REG_WRITE(ah, AR_BCR, INIT_BCON_CNTRL_REG);
135 OS_REG_WRITE(ah, AR_PCICFG,
136 AR_PCICFG_LED_ACT | AR_PCICFG_LED_BCTL);
139 OS_REG_WRITE(ah, AR_BCR, INIT_BCON_CNTRL_REG | AR_BCR_BCMD);
140 OS_REG_WRITE(ah, AR_PCICFG,
141 AR_PCICFG_CLKRUNEN | AR_PCICFG_LED_PEND | AR_PCICFG_LED_BCTL);
144 OS_REG_WRITE(ah, AR_BCR, INIT_BCON_CNTRL_REG);
145 OS_REG_WRITE(ah, AR_PCICFG,
146 AR_PCICFG_CLKRUNEN | AR_PCICFG_LED_PEND | AR_PCICFG_LED_BCTL);
149 OS_REG_WRITE(ah, AR_BCR, INIT_BCON_CNTRL_REG);
150 OS_REG_WRITE(ah, AR_PCICFG,
151 AR_PCICFG_LED_ACT | AR_PCICFG_LED_BCTL);
155 /* Restore previous led state */
156 OS_REG_WRITE(ah, AR_PCICFG, OS_REG_READ(ah, AR_PCICFG) | ledstate);
159 OS_REG_WRITE(ah, AR_BSS_ID0, LE_READ_4(ahp->ah_bssid));
160 OS_REG_WRITE(ah, AR_BSS_ID1, LE_READ_2(ahp->ah_bssid + 4));
162 /* BSSID, association id, ps-poll */
163 ar5210WriteAssocid(ah, ahp->ah_bssid, ahp->ah_associd);
165 OS_REG_WRITE(ah, AR_TXDP0, 0);
166 OS_REG_WRITE(ah, AR_TXDP1, 0);
167 OS_REG_WRITE(ah, AR_RXDP, 0);
170 * Initialize interrupt state.
172 (void) OS_REG_READ(ah, AR_ISR); /* cleared on read */
173 OS_REG_WRITE(ah, AR_IMR, 0);
174 OS_REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
177 (void) OS_REG_READ(ah, AR_BSR); /* cleared on read */
178 OS_REG_WRITE(ah, AR_TXCFG, AR_DMASIZE_128B);
179 OS_REG_WRITE(ah, AR_RXCFG, AR_DMASIZE_128B);
181 OS_REG_WRITE(ah, AR_TOPS, 8); /* timeout prescale */
182 OS_REG_WRITE(ah, AR_RXNOFRM, 8); /* RX no frame timeout */
183 OS_REG_WRITE(ah, AR_RPGTO, 0); /* RX frame gap timeout */
184 OS_REG_WRITE(ah, AR_TXNOFRM, 0); /* TX no frame timeout */
186 OS_REG_WRITE(ah, AR_SFR, 0);
187 OS_REG_WRITE(ah, AR_MIBC, 0); /* unfreeze ctrs + clr state */
188 OS_REG_WRITE(ah, AR_RSSI_THR, ahp->ah_rssiThr);
189 OS_REG_WRITE(ah, AR_CFP_DUR, 0);
191 ar5210SetRxFilter(ah, 0); /* nothing for now */
192 OS_REG_WRITE(ah, AR_MCAST_FIL0, 0); /* multicast filter */
193 OS_REG_WRITE(ah, AR_MCAST_FIL1, 0); /* XXX was 2 */
195 OS_REG_WRITE(ah, AR_TX_MASK0, 0);
196 OS_REG_WRITE(ah, AR_TX_MASK1, 0);
197 OS_REG_WRITE(ah, AR_CLR_TMASK, 1);
198 OS_REG_WRITE(ah, AR_TRIG_LEV, 1); /* minimum */
200 ar5210UpdateDiagReg(ah, 0);
202 OS_REG_WRITE(ah, AR_CFP_PERIOD, 0);
203 OS_REG_WRITE(ah, AR_TIMER0, 0); /* next beacon time */
204 OS_REG_WRITE(ah, AR_TSF_L32, 0); /* local clock */
205 OS_REG_WRITE(ah, AR_TIMER1, ~0); /* next DMA beacon alert */
206 OS_REG_WRITE(ah, AR_TIMER2, ~0); /* next SW beacon alert */
207 OS_REG_WRITE(ah, AR_TIMER3, 1); /* next ATIM window */
209 /* Write the INI values for PHYreg initialization */
210 for (i = 0; i < N(ar5k0007_init); i++) {
211 uint32_t reg = ar5k0007_init[i].Offset;
212 /* On channel change, don't reset the PCU registers */
213 if (!(bChannelChange && (0x8000 <= reg && reg < 0x9000)))
214 OS_REG_WRITE(ah, reg, ar5k0007_init[i].Value);
217 /* Setup the transmit power values for cards since 0x0[0-2]05 */
218 if (!ar5210SetTransmitPower(ah, chan)) {
219 HALDEBUG(ah, HAL_DEBUG_ANY,
220 "%s: error init'ing transmit power\n", __func__);
224 OS_REG_WRITE(ah, AR_PHY(10),
225 (OS_REG_READ(ah, AR_PHY(10)) & 0xFFFF00FF) |
226 (ee->ee_xlnaOn << 8));
227 OS_REG_WRITE(ah, AR_PHY(13),
228 (ee->ee_xpaOff << 24) | (ee->ee_xpaOff << 16) |
229 (ee->ee_xpaOn << 8) | ee->ee_xpaOn);
230 OS_REG_WRITE(ah, AR_PHY(17),
231 (OS_REG_READ(ah, AR_PHY(17)) & 0xFFFFC07F) |
232 ((ee->ee_antenna >> 1) & 0x3F80));
233 OS_REG_WRITE(ah, AR_PHY(18),
234 (OS_REG_READ(ah, AR_PHY(18)) & 0xFFFC0FFF) |
235 ((ee->ee_antenna << 10) & 0x3F000));
236 OS_REG_WRITE(ah, AR_PHY(25),
237 (OS_REG_READ(ah, AR_PHY(25)) & 0xFFF80FFF) |
238 ((ee->ee_thresh62 << 12) & 0x7F000));
239 OS_REG_WRITE(ah, AR_PHY(68),
240 (OS_REG_READ(ah, AR_PHY(68)) & 0xFFFFFFFC) |
241 (ee->ee_antenna & 0x3));
243 if (!ar5210SetChannel(ah, chan)) {
244 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unable to set channel\n",
248 if (bChannelChange && !IEEE80211_IS_CHAN_DFS(chan))
249 chan->ic_state &= ~IEEE80211_CHANSTATE_CWINT;
251 /* Activate the PHY */
252 OS_REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ENABLE);
254 OS_DELAY(1000); /* Wait a bit (1 msec) */
256 /* calibrate the HW and poll the bit going to 0 for completion */
257 OS_REG_WRITE(ah, AR_PHY_AGCCTL,
258 OS_REG_READ(ah, AR_PHY_AGCCTL) | AR_PHY_AGC_CAL);
259 (void) ath_hal_wait(ah, AR_PHY_AGCCTL, AR_PHY_AGC_CAL, 0);
261 /* Perform noise floor calibration and set status */
262 if (!ar5210CalNoiseFloor(ah, ichan)) {
263 chan->ic_state |= IEEE80211_CHANSTATE_CWINT;
264 HALDEBUG(ah, HAL_DEBUG_ANY,
265 "%s: noise floor calibration failed\n", __func__);
269 for (q = 0; q < HAL_NUM_TX_QUEUES; q++)
270 ar5210ResetTxQueue(ah, q);
272 if (AH_PRIVATE(ah)->ah_rfkillEnabled)
273 ar5210EnableRfKill(ah);
276 * Writing to AR_BEACON will start timers. Hence it should be
277 * the last register to be written. Do not reset tsf, do not
278 * enable beacons at this point, but preserve other values
279 * like beaconInterval.
281 OS_REG_WRITE(ah, AR_BEACON,
282 (OS_REG_READ(ah, AR_BEACON) &
283 ~(AR_BEACON_EN | AR_BEACON_RESET_TSF)));
285 /* Restore user-specified slot time and timeouts */
286 if (ahp->ah_sifstime != (u_int) -1)
287 ar5210SetSifsTime(ah, ahp->ah_sifstime);
288 if (ahp->ah_slottime != (u_int) -1)
289 ar5210SetSlotTime(ah, ahp->ah_slottime);
290 if (ahp->ah_acktimeout != (u_int) -1)
291 ar5210SetAckTimeout(ah, ahp->ah_acktimeout);
292 if (ahp->ah_ctstimeout != (u_int) -1)
293 ar5210SetCTSTimeout(ah, ahp->ah_ctstimeout);
294 if (AH_PRIVATE(ah)->ah_diagreg != 0)
295 ar5210UpdateDiagReg(ah, AH_PRIVATE(ah)->ah_diagreg);
297 AH_PRIVATE(ah)->ah_opmode = opmode; /* record operating mode */
299 HALDEBUG(ah, HAL_DEBUG_RESET, "%s: done\n", __func__);
303 if (status != AH_NULL)
311 ar5210SetOperatingMode(struct ath_hal *ah, int opmode)
313 struct ath_hal_5210 *ahp = AH5210(ah);
316 val = OS_REG_READ(ah, AR_STA_ID1) & 0xffff;
319 OS_REG_WRITE(ah, AR_STA_ID1, val
321 | AR_STA_ID1_NO_PSPOLL
322 | AR_STA_ID1_DESC_ANTENNA
323 | ahp->ah_staId1Defaults);
326 OS_REG_WRITE(ah, AR_STA_ID1, val
328 | AR_STA_ID1_NO_PSPOLL
329 | AR_STA_ID1_DESC_ANTENNA
330 | ahp->ah_staId1Defaults);
333 OS_REG_WRITE(ah, AR_STA_ID1, val
334 | AR_STA_ID1_NO_PSPOLL
336 | ahp->ah_staId1Defaults);
339 OS_REG_WRITE(ah, AR_STA_ID1, val
340 | AR_STA_ID1_NO_PSPOLL
341 | ahp->ah_staId1Defaults);
347 ar5210SetPCUConfig(struct ath_hal *ah)
349 ar5210SetOperatingMode(ah, AH_PRIVATE(ah)->ah_opmode);
353 * Places the PHY and Radio chips into reset. A full reset
354 * must be called to leave this state. The PCI/MAC/PCU are
355 * not placed into reset as we must receive interrupt to
356 * re-enable the hardware.
359 ar5210PhyDisable(struct ath_hal *ah)
361 return ar5210SetResetReg(ah, AR_RC_RPHY, 10);
365 * Places all of hardware into reset
368 ar5210Disable(struct ath_hal *ah)
370 #define AR_RC_HW (AR_RC_RPCU | AR_RC_RDMA | AR_RC_RPHY | AR_RC_RMAC)
371 if (!ar5210SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
375 * Reset the HW - PCI must be reset after the rest of the
376 * device has been reset
378 if (!ar5210SetResetReg(ah, AR_RC_HW, AR_RC_SETTLE_TIME))
381 (void) ar5210SetResetReg(ah, AR_RC_HW | AR_RC_RPCI, AR_RC_SETTLE_TIME);
382 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */
389 * Places the hardware into reset and then pulls it out of reset
392 ar5210ChipReset(struct ath_hal *ah, struct ieee80211_channel *chan)
394 #define AR_RC_HW (AR_RC_RPCU | AR_RC_RDMA | AR_RC_RPHY | AR_RC_RMAC)
396 HALDEBUG(ah, HAL_DEBUG_RESET, "%s turbo %s\n", __func__,
397 chan && IEEE80211_IS_CHAN_TURBO(chan) ?
398 "enabled" : "disabled");
400 if (!ar5210SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
403 /* Place chip in turbo before reset to cleanly reset clocks */
404 OS_REG_WRITE(ah, AR_PHY_FRCTL,
405 chan && IEEE80211_IS_CHAN_TURBO(chan) ? AR_PHY_TURBO_MODE : 0);
409 * PCI must be reset after the rest of the device has been reset.
411 if (!ar5210SetResetReg(ah, AR_RC_HW, AR_RC_SETTLE_TIME))
414 if (!ar5210SetResetReg(ah, AR_RC_HW | AR_RC_RPCI, AR_RC_SETTLE_TIME))
416 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */
419 * Bring out of sleep mode (AGAIN)
421 * WARNING WARNING WARNING
423 * There is a problem with the chip where it doesn't always indicate
424 * that it's awake, so initializePowerUp() will fail.
426 if (!ar5210SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
429 /* Clear warm reset reg */
430 return ar5210SetResetReg(ah, 0, 10);
435 FIRPWR_M = 0x03fc0000,
437 KCOARSEHIGH_M = 0x003f8000,
439 KCOARSELOW_M = 0x00007f80,
441 ADCSAT_ICOUNT_M = 0x0001f800,
442 ADCSAT_ICOUNT_S = 11,
443 ADCSAT_THRESH_M = 0x000007e0,
448 * Recalibrate the lower PHY chips to account for temperature/environment
452 ar5210PerCalibrationN(struct ath_hal *ah,
453 struct ieee80211_channel *chan, u_int chainMask,
454 HAL_BOOL longCal, HAL_BOOL *isCalDone)
457 uint32_t reg9858, reg985c, reg9868;
458 HAL_CHANNEL_INTERNAL *ichan;
460 ichan = ath_hal_checkchannel(ah, chan);
461 if (ichan == AH_NULL)
463 /* Disable tx and rx */
464 ar5210UpdateDiagReg(ah,
465 OS_REG_READ(ah, AR_DIAG_SW) | (AR_DIAG_SW_DIS_TX | AR_DIAG_SW_DIS_RX));
467 /* Disable Beacon Enable */
468 regBeacon = OS_REG_READ(ah, AR_BEACON);
469 OS_REG_WRITE(ah, AR_BEACON, regBeacon & ~AR_BEACON_EN);
471 /* Delay 4ms to ensure that all tx and rx activity has ceased */
474 /* Disable AGC to radio traffic */
475 OS_REG_WRITE(ah, 0x9808, OS_REG_READ(ah, 0x9808) | 0x08000000);
476 /* Wait for the AGC traffic to cease. */
479 /* Change Channel to relock synth */
480 if (!ar5210SetChannel(ah, chan))
483 /* wait for the synthesizer lock to stabilize */
486 /* Re-enable AGC to radio traffic */
487 OS_REG_WRITE(ah, 0x9808, OS_REG_READ(ah, 0x9808) & (~0x08000000));
490 * Configure the AGC so that it is highly unlikely (if not
491 * impossible) for it to send any gain changes to the analog
492 * chip. We store off the current values so that they can
493 * be rewritten below. Setting the following values:
500 reg9858 = OS_REG_READ(ah, 0x9858);
501 reg985c = OS_REG_READ(ah, 0x985c);
502 reg9868 = OS_REG_READ(ah, 0x9868);
504 OS_REG_WRITE(ah, 0x9858, (reg9858 & ~FIRPWR_M) |
505 ((-1 << FIRPWR_S) & FIRPWR_M));
506 OS_REG_WRITE(ah, 0x985c,
507 (reg985c & ~(KCOARSEHIGH_M | KCOARSELOW_M)) |
508 ((-1 << KCOARSEHIGH_S) & KCOARSEHIGH_M) |
509 ((-127 << KCOARSELOW_S) & KCOARSELOW_M));
510 OS_REG_WRITE(ah, 0x9868,
511 (reg9868 & ~(ADCSAT_ICOUNT_M | ADCSAT_THRESH_M)) |
512 ((2 << ADCSAT_ICOUNT_S) & ADCSAT_ICOUNT_M) |
513 ((12 << ADCSAT_THRESH_S) & ADCSAT_THRESH_M));
515 /* Wait for AGC changes to be enacted */
519 * We disable RF mix/gain stages for the PGA to avoid a
520 * race condition that will occur with receiving a frame
521 * and performing the AGC calibration. This will be
522 * re-enabled at the end of offset cal. We turn off AGC
523 * writes during this write as it will go over the analog bus.
525 OS_REG_WRITE(ah, 0x9808, OS_REG_READ(ah, 0x9808) | 0x08000000);
526 OS_DELAY(10); /* wait for the AGC traffic to cease */
527 OS_REG_WRITE(ah, 0x98D4, 0x21);
528 OS_REG_WRITE(ah, 0x9808, OS_REG_READ(ah, 0x9808) & (~0x08000000));
530 /* wait to make sure that additional AGC traffic has quiesced */
533 /* AGC calibration (this was added to make the NF threshold check work) */
534 OS_REG_WRITE(ah, AR_PHY_AGCCTL,
535 OS_REG_READ(ah, AR_PHY_AGCCTL) | AR_PHY_AGC_CAL);
536 if (!ath_hal_wait(ah, AR_PHY_AGCCTL, AR_PHY_AGC_CAL, 0)) {
537 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: AGC calibration timeout\n",
541 /* Rewrite our AGC values we stored off earlier (return AGC to normal operation) */
542 OS_REG_WRITE(ah, 0x9858, reg9858);
543 OS_REG_WRITE(ah, 0x985c, reg985c);
544 OS_REG_WRITE(ah, 0x9868, reg9868);
546 /* Perform noise floor and set status */
547 if (!ar5210CalNoiseFloor(ah, ichan)) {
549 * Delay 5ms before retrying the noise floor -
550 * just to make sure. We're in an error
553 HALDEBUG(ah, HAL_DEBUG_NFCAL | HAL_DEBUG_PERCAL,
554 "%s: Performing 2nd Noise Cal\n", __func__);
556 if (!ar5210CalNoiseFloor(ah, ichan))
557 chan->ic_state |= IEEE80211_CHANSTATE_CWINT;
560 /* Clear tx and rx disable bit */
561 ar5210UpdateDiagReg(ah,
562 OS_REG_READ(ah, AR_DIAG_SW) & ~(AR_DIAG_SW_DIS_TX | AR_DIAG_SW_DIS_RX));
564 /* Re-enable Beacons */
565 OS_REG_WRITE(ah, AR_BEACON, regBeacon);
567 *isCalDone = AH_TRUE;
573 ar5210PerCalibration(struct ath_hal *ah, struct ieee80211_channel *chan,
576 return ar5210PerCalibrationN(ah, chan, 0x1, AH_TRUE, isIQdone);
580 ar5210ResetCalValid(struct ath_hal *ah, const struct ieee80211_channel *chan)
586 * Writes the given reset bit mask into the reset register
589 ar5210SetResetReg(struct ath_hal *ah, uint32_t resetMask, u_int delay)
591 uint32_t mask = resetMask ? resetMask : ~0;
594 OS_REG_WRITE(ah, AR_RC, resetMask);
595 /* need to wait at least 128 clocks when reseting PCI before read */
598 resetMask &= AR_RC_RPCU | AR_RC_RDMA | AR_RC_RPHY | AR_RC_RMAC;
599 mask &= AR_RC_RPCU | AR_RC_RDMA | AR_RC_RPHY | AR_RC_RMAC;
600 rt = ath_hal_wait(ah, AR_RC, mask, resetMask);
601 if ((resetMask & AR_RC_RMAC) == 0) {
604 * Set CFG, little-endian for descriptor accesses.
606 mask = INIT_CONFIG_STATUS | AR_CFG_SWTD | AR_CFG_SWRD;
607 OS_REG_WRITE(ah, AR_CFG, mask);
609 OS_REG_WRITE(ah, AR_CFG, INIT_CONFIG_STATUS);
615 * Returns: the pcdac value
618 getPcdac(struct ath_hal *ah, const struct tpcMap *pRD, uint8_t dBm)
621 int useNextEntry = AH_FALSE;
624 for (i = AR_TP_SCALING_ENTRIES - 1; i >= 0; i--) {
625 /* Check for exact entry */
626 if (dBm == AR_I2DBM(i)) {
627 if (pRD->pcdac[i] != 63)
628 return pRD->pcdac[i];
629 useNextEntry = AH_TRUE;
630 } else if (dBm + 1 == AR_I2DBM(i) && i > 0) {
631 /* Interpolate for between entry with a logish scale */
632 if (pRD->pcdac[i] != 63 && pRD->pcdac[i-1] != 63) {
633 interp = (350 * (pRD->pcdac[i] - pRD->pcdac[i-1])) + 999;
634 interp = (interp / 1000) + pRD->pcdac[i-1];
637 useNextEntry = AH_TRUE;
638 } else if (useNextEntry == AH_TRUE) {
639 /* Grab the next lowest */
640 if (pRD->pcdac[i] != 63)
641 return pRD->pcdac[i];
645 /* Return the lowest Entry if we haven't returned */
646 for (i = 0; i < AR_TP_SCALING_ENTRIES; i++)
647 if (pRD->pcdac[i] != 63)
648 return pRD->pcdac[i];
650 /* No value to return from table */
652 ath_hal_printf(ah, "%s: empty transmit power table?\n", __func__);
658 * Find or interpolates the gainF value from the table ptr.
661 getGainF(struct ath_hal *ah, const struct tpcMap *pRD,
662 uint8_t pcdac, uint8_t *dBm)
669 for (i = 0; i < AR_TP_SCALING_ENTRIES; i++) {
670 if(pRD->pcdac[i] == 63)
672 if (pcdac == pRD->pcdac[i]) {
674 return pRD->gainF[i]; /* Exact Match */
676 if (pcdac > pRD->pcdac[i])
678 if (pcdac < pRD->pcdac[i]) {
682 /* PCDAC is lower than lowest setting */
683 return pRD->gainF[i];
688 if (i >= AR_TP_SCALING_ENTRIES && low == -1) {
689 /* No settings were found */
692 "%s: no valid entries in the pcdac table: %d\n",
697 if (i >= AR_TP_SCALING_ENTRIES) {
698 /* PCDAC setting was above the max setting in the table */
699 *dBm = AR_I2DBM(low);
700 return pRD->gainF[low];
702 /* Only exact if table has no missing entries */
703 *dBm = (low + high) + 3;
706 * Perform interpolation between low and high values to find gainF
707 * linearly scale the pcdac between low and high
709 interp = ((pcdac - pRD->pcdac[low]) * 1000) /
710 (pRD->pcdac[high] - pRD->pcdac[low]);
712 * Multiply the scale ratio by the gainF difference
713 * (plus a rnd up factor)
715 interp = ((interp * (pRD->gainF[high] - pRD->gainF[low])) + 999) / 1000;
717 /* Add ratioed gain_f to low gain_f value */
718 return interp + pRD->gainF[low];
722 ar5210SetTxPowerLimit(struct ath_hal *ah, uint32_t limit)
724 AH_PRIVATE(ah)->ah_powerLimit = AH_MIN(limit, AR5210_MAX_RATE_POWER);
725 /* XXX flush to h/w */
730 * Get TXPower values and set them in the radio
733 setupPowerSettings(struct ath_hal *ah, const struct ieee80211_channel *chan,
736 uint16_t freq = ath_hal_gethwchannel(ah, chan);
737 const HAL_EEPROM_v1 *ee = AH_PRIVATE(ah)->ah_eeprom;
738 uint8_t gainFRD, gainF36, gainF48, gainF54;
739 uint8_t dBmRD, dBm36, dBm48, dBm54, dontcare;
741 const struct tpcMap *pRD;
743 /* Set OB/DB Values regardless of channel */
744 cp[15] = (ee->ee_biasCurrents >> 4) & 0x7;
745 cp[16] = ee->ee_biasCurrents & 0x7;
747 if (freq < 5170 || freq > 5320) {
748 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u\n",
753 HALASSERT(ee->ee_version >= AR_EEPROM_VER1 &&
754 ee->ee_version < AR_EEPROM_VER3);
756 /* Match regulatory domain */
757 for (rd = 0; rd < AR_REG_DOMAINS_MAX; rd++)
758 if (AH_PRIVATE(ah)->ah_currentRD == ee->ee_regDomain[rd])
760 if (rd == AR_REG_DOMAINS_MAX) {
763 "%s: no calibrated regulatory domain matches the "
764 "current regularly domain (0x%0x)\n", __func__,
765 AH_PRIVATE(ah)->ah_currentRD);
769 group = ((freq - 5170) / 10);
772 /* Pull 5.29 into the 5.27 group */
776 /* Integer divide will set group from 0 to 4 */
778 pRD = &ee->ee_tpc[group];
780 /* Set PC DAC Values */
781 cp[14] = pRD->regdmn[rd];
782 cp[9] = AH_MIN(pRD->regdmn[rd], pRD->rate36);
783 cp[8] = AH_MIN(pRD->regdmn[rd], pRD->rate48);
784 cp[7] = AH_MIN(pRD->regdmn[rd], pRD->rate54);
786 /* Find Corresponding gainF values for RD, 36, 48, 54 */
787 gainFRD = getGainF(ah, pRD, pRD->regdmn[rd], &dBmRD);
788 gainF36 = getGainF(ah, pRD, cp[9], &dBm36);
789 gainF48 = getGainF(ah, pRD, cp[8], &dBm48);
790 gainF54 = getGainF(ah, pRD, cp[7], &dBm54);
792 /* Power Scale if requested */
793 if (AH_PRIVATE(ah)->ah_tpScale != HAL_TP_SCALE_MAX) {
794 static const uint16_t tpcScaleReductionTable[5] =
795 { 0, 3, 6, 9, AR5210_MAX_RATE_POWER };
798 tpScale = tpcScaleReductionTable[AH_PRIVATE(ah)->ah_tpScale];
799 if (dBmRD < tpScale+3)
803 cp[14] = getPcdac(ah, pRD, dBmRD);
804 gainFRD = getGainF(ah, pRD, cp[14], &dontcare);
805 dBm36 = AH_MIN(dBm36, dBmRD);
806 cp[9] = getPcdac(ah, pRD, dBm36);
807 gainF36 = getGainF(ah, pRD, cp[9], &dontcare);
808 dBm48 = AH_MIN(dBm48, dBmRD);
809 cp[8] = getPcdac(ah, pRD, dBm48);
810 gainF48 = getGainF(ah, pRD, cp[8], &dontcare);
811 dBm54 = AH_MIN(dBm54, dBmRD);
812 cp[7] = getPcdac(ah, pRD, dBm54);
813 gainF54 = getGainF(ah, pRD, cp[7], &dontcare);
815 /* Record current dBm at rate 6 */
816 AH_PRIVATE(ah)->ah_maxPowerLevel = 2*dBmRD;
818 cp[13] = cp[12] = cp[11] = cp[10] = cp[14];
820 /* Set GainF Values */
821 cp[0] = gainFRD - gainF54;
822 cp[1] = gainFRD - gainF48;
823 cp[2] = gainFRD - gainF36;
824 /* 9, 12, 18, 24 have no gain_delta from 6 */
825 cp[3] = cp[4] = cp[5] = cp[6] = 0;
830 * Places the device in and out of reset and then places sane
831 * values in the registers based on EEPROM config, initialization
832 * vectors (as determined by the mode), and station configuration
835 ar5210SetTransmitPower(struct ath_hal *ah, const struct ieee80211_channel *chan)
837 #define N(a) (sizeof (a) / sizeof (a[0]))
838 static const uint32_t pwr_regs_start[17] = {
839 0x00000000, 0x00000000, 0x00000000,
840 0x00000000, 0x00000000, 0xf0000000,
841 0xcc000000, 0x00000000, 0x00000000,
842 0x00000000, 0x0a000000, 0x000000e2,
843 0x0a000020, 0x01000002, 0x01000018,
844 0x40000000, 0x00000418
847 uint8_t cp[sizeof(ar5k0007_pwrSettings)];
848 uint32_t pwr_regs[17];
850 OS_MEMCPY(pwr_regs, pwr_regs_start, sizeof(pwr_regs));
851 OS_MEMCPY(cp, ar5k0007_pwrSettings, sizeof(cp));
853 /* Check the EEPROM tx power calibration settings */
854 if (!setupPowerSettings(ah, chan, cp)) {
856 ath_hal_printf(ah, "%s: unable to setup power settings\n",
861 if (cp[15] < 1 || cp[15] > 5) {
863 ath_hal_printf(ah, "%s: OB out of range (%u)\n",
868 if (cp[16] < 1 || cp[16] > 5) {
870 ath_hal_printf(ah, "%s: DB out of range (%u)\n",
876 /* reverse bits of the transmit power array */
877 for (i = 0; i < 7; i++)
878 cp[i] = ath_hal_reverseBits(cp[i], 5);
879 for (i = 7; i < 15; i++)
880 cp[i] = ath_hal_reverseBits(cp[i], 6);
882 /* merge transmit power values into the register - quite gross */
883 pwr_regs[0] |= ((cp[1] << 5) & 0xE0) | (cp[0] & 0x1F);
884 pwr_regs[1] |= ((cp[3] << 7) & 0x80) | ((cp[2] << 2) & 0x7C) |
885 ((cp[1] >> 3) & 0x03);
886 pwr_regs[2] |= ((cp[4] << 4) & 0xF0) | ((cp[3] >> 1) & 0x0F);
887 pwr_regs[3] |= ((cp[6] << 6) & 0xC0) | ((cp[5] << 1) & 0x3E) |
888 ((cp[4] >> 4) & 0x01);
889 pwr_regs[4] |= ((cp[7] << 3) & 0xF8) | ((cp[6] >> 2) & 0x07);
890 pwr_regs[5] |= ((cp[9] << 7) & 0x80) | ((cp[8] << 1) & 0x7E) |
891 ((cp[7] >> 5) & 0x01);
892 pwr_regs[6] |= ((cp[10] << 5) & 0xE0) | ((cp[9] >> 1) & 0x1F);
893 pwr_regs[7] |= ((cp[11] << 3) & 0xF8) | ((cp[10] >> 3) & 0x07);
894 pwr_regs[8] |= ((cp[12] << 1) & 0x7E) | ((cp[11] >> 5) & 0x01);
895 pwr_regs[9] |= ((cp[13] << 5) & 0xE0);
896 pwr_regs[10] |= ((cp[14] << 3) & 0xF8) | ((cp[13] >> 3) & 0x07);
897 pwr_regs[11] |= ((cp[14] >> 5) & 0x01);
900 pwr_regs[8] |= (ath_hal_reverseBits(cp[15], 3) << 7) & 0x80;
901 pwr_regs[9] |= (ath_hal_reverseBits(cp[15], 3) >> 1) & 0x03;
904 pwr_regs[9] |= (ath_hal_reverseBits(cp[16], 3) << 2) & 0x1C;
906 /* Write the registers */
907 for (i = 0; i < N(pwr_regs)-1; i++)
908 OS_REG_WRITE(ah, 0x0000989c, pwr_regs[i]);
909 /* last write is a flush */
910 OS_REG_WRITE(ah, 0x000098d4, pwr_regs[i]);
917 * Takes the MHz channel value and sets the Channel value
919 * ASSUMES: Writes enabled to analog bus before AGC is active
920 * or by disabling the AGC.
923 ar5210SetChannel(struct ath_hal *ah, struct ieee80211_channel *chan)
925 uint16_t freq = ath_hal_gethwchannel(ah, chan);
928 /* Set the Channel */
929 data = ath_hal_reverseBits((freq - 5120)/10, 5);
930 data = (data << 1) | 0x41;
931 OS_REG_WRITE(ah, AR_PHY(0x27), data);
932 OS_REG_WRITE(ah, AR_PHY(0x30), 0);
933 AH_PRIVATE(ah)->ah_curchan = chan;
938 ar5210GetNoiseFloor(struct ath_hal *ah)
942 nf = (OS_REG_READ(ah, AR_PHY(25)) >> 19) & 0x1ff;
944 nf = 0 - ((nf ^ 0x1ff) + 1);
948 #define NORMAL_NF_THRESH (-72)
950 * Peform the noisefloor calibration and check for
951 * any constant channel interference
953 * Returns: TRUE for a successful noise floor calibration; else FALSE
956 ar5210CalNoiseFloor(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *ichan)
960 /* Calibrate the noise floor */
961 OS_REG_WRITE(ah, AR_PHY_AGCCTL,
962 OS_REG_READ(ah, AR_PHY_AGCCTL) | AR_PHY_AGC_NF);
964 /* Do not read noise floor until it has done the first update */
965 if (!ath_hal_wait(ah, AR_PHY_AGCCTL, AR_PHY_AGC_NF, 0)) {
967 ath_hal_printf(ah, " -PHY NF Reg state: 0x%x\n",
968 OS_REG_READ(ah, AR_PHY_AGCCTL));
969 ath_hal_printf(ah, " -MAC Reset Reg state: 0x%x\n",
970 OS_REG_READ(ah, AR_RC));
971 ath_hal_printf(ah, " -PHY Active Reg state: 0x%x\n",
972 OS_REG_READ(ah, AR_PHY_ACTIVE));
973 #endif /* ATH_HAL_DEBUG */
978 /* Keep checking until the floor is below the threshold or the nf is done */
979 for (nfLoops = 0; ((nfLoops < 21) && (nf > NORMAL_NF_THRESH)); nfLoops++) {
980 OS_DELAY(1000); /* Sleep for 1 ms */
981 nf = ar5210GetNoiseFloor(ah);
984 if (nf > NORMAL_NF_THRESH) {
985 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: Bad noise cal %d\n",
987 ichan->rawNoiseFloor = 0;
990 ichan->rawNoiseFloor = nf;
995 * Adjust NF based on statistical values for 5GHz frequencies.
998 ar5210GetNfAdjust(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c)
1004 ar5210GetRfgain(struct ath_hal *ah)
1006 return HAL_RFGAIN_INACTIVE;