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/*
* Copyright (c) 2008-2009 Sam Leffler, Errno Consulting
* Copyright (c) 2008 Atheros Communications, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $FreeBSD: release/9.1.0/sys/dev/ath/ath_hal/ar9002/ar9285.c 219605 2011-03-13 13:00:45Z adrian $
*/
#include "opt_ah.h"
#include "ah.h"
#include "ah_internal.h"
#include "ah_eeprom_v14.h"
#include "ar9002/ar9280.h"
#include "ar9002/ar9285.h"
#include "ar5416/ar5416reg.h"
#include "ar5416/ar5416phy.h"
/*
* The ordering of nfarray is thus:
*
* nfarray[0]: Chain 0 ctl
* nfarray[1]: Chain 1 ctl
* nfarray[2]: Chain 2 ctl
* nfarray[3]: Chain 0 ext
* nfarray[4]: Chain 1 ext
* nfarray[5]: Chain 2 ext
*/
static void
ar9285GetNoiseFloor(struct ath_hal *ah, int16_t nfarray[])
{
int16_t nf;
nf = MS(OS_REG_READ(ah, AR_PHY_CCA), AR9280_PHY_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
HALDEBUG(ah, HAL_DEBUG_NFCAL,
"NF calibrated [ctl] [chain 0] is %d\n", nf);
nfarray[0] = nf;
nf = MS(OS_REG_READ(ah, AR_PHY_EXT_CCA), AR9280_PHY_EXT_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
HALDEBUG(ah, HAL_DEBUG_NFCAL,
"NF calibrated [ext] [chain 0] is %d\n", nf);
nfarray[3] = nf;
/* Chain 1 - invalid */
nfarray[1] = 0;
nfarray[4] = 0;
/* Chain 2 - invalid */
nfarray[2] = 0;
nfarray[5] = 0;
}
HAL_BOOL
ar9285RfAttach(struct ath_hal *ah, HAL_STATUS *status)
{
if (ar9280RfAttach(ah, status) == AH_FALSE)
return AH_FALSE;
AH_PRIVATE(ah)->ah_getNoiseFloor = ar9285GetNoiseFloor;
return AH_TRUE;
}