f90fad94e2
The offsets didn't match the assumption that nfarray[] is ordered by the chainmask bits and programmed via the register order in ar5416_cca_regs[]. This repairs that damage and ensures that chain 1 is programmed correctly. (And extension channels will now be programmed correctly also.) This fixes some of the stuck beacons I've been seeing on my AR9160/AR5416 setups - because Chain 1 would be programmed -80 or -85 dBm, which is higher than the actual noise floor and thus convincing the radio that indeed it can't ever transmit.
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* Copyright (c) 2008-2009 Sam Leffler, Errno Consulting
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* Copyright (c) 2008 Atheros Communications, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#include "opt_ah.h"
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#include "ah.h"
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#include "ah_internal.h"
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#include "ah_eeprom_v14.h"
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#include "ar9002/ar9280.h"
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#include "ar9002/ar9285.h"
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#include "ar5416/ar5416reg.h"
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#include "ar5416/ar5416phy.h"
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/*
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* The ordering of nfarray is thus:
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*
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* nfarray[0]: Chain 0 ctl
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* nfarray[1]: Chain 1 ctl
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* nfarray[2]: Chain 2 ctl
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* nfarray[3]: Chain 0 ext
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* nfarray[4]: Chain 1 ext
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* nfarray[5]: Chain 2 ext
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*/
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static void
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ar9285GetNoiseFloor(struct ath_hal *ah, int16_t nfarray[])
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{
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int16_t nf;
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nf = MS(OS_REG_READ(ah, AR_PHY_CCA), AR9280_PHY_MINCCA_PWR);
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if (nf & 0x100)
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nf = 0 - ((nf ^ 0x1ff) + 1);
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HALDEBUG(ah, HAL_DEBUG_NFCAL,
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"NF calibrated [ctl] [chain 0] is %d\n", nf);
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nfarray[0] = nf;
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nf = MS(OS_REG_READ(ah, AR_PHY_EXT_CCA), AR9280_PHY_EXT_MINCCA_PWR);
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if (nf & 0x100)
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nf = 0 - ((nf ^ 0x1ff) + 1);
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HALDEBUG(ah, HAL_DEBUG_NFCAL,
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"NF calibrated [ext] [chain 0] is %d\n", nf);
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nfarray[3] = nf;
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/* Chain 1 - invalid */
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nfarray[1] = 0;
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nfarray[4] = 0;
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/* Chain 2 - invalid */
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nfarray[2] = 0;
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nfarray[5] = 0;
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}
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HAL_BOOL
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ar9285RfAttach(struct ath_hal *ah, HAL_STATUS *status)
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{
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if (ar9280RfAttach(ah, status) == AH_FALSE)
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return AH_FALSE;
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AH_PRIVATE(ah)->ah_getNoiseFloor = ar9285GetNoiseFloor;
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return AH_TRUE;
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}
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