2 * Copyright (c) 2008-2009 Sam Leffler, Errno Consulting
3 * Copyright (c) 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"
24 #include "ah_eeprom_v14.h"
26 #include "ar9002/ar9280.h"
27 #include "ar9002/ar9285.h"
28 #include "ar5416/ar5416reg.h"
29 #include "ar5416/ar5416phy.h"
32 * The ordering of nfarray is thus:
34 * nfarray[0]: Chain 0 ctl
35 * nfarray[1]: Chain 1 ctl
36 * nfarray[2]: Chain 2 ctl
37 * nfarray[3]: Chain 0 ext
38 * nfarray[4]: Chain 1 ext
39 * nfarray[5]: Chain 2 ext
42 ar9285GetNoiseFloor(struct ath_hal *ah, int16_t nfarray[])
46 nf = MS(OS_REG_READ(ah, AR_PHY_CCA), AR9280_PHY_MINCCA_PWR);
48 nf = 0 - ((nf ^ 0x1ff) + 1);
49 HALDEBUG(ah, HAL_DEBUG_NFCAL,
50 "NF calibrated [ctl] [chain 0] is %d\n", nf);
54 nf = MS(OS_REG_READ(ah, AR_PHY_EXT_CCA), AR9280_PHY_EXT_MINCCA_PWR);
56 nf = 0 - ((nf ^ 0x1ff) + 1);
57 HALDEBUG(ah, HAL_DEBUG_NFCAL,
58 "NF calibrated [ext] [chain 0] is %d\n", nf);
61 /* Chain 1 - invalid */
65 /* Chain 2 - invalid */
71 ar9285RfAttach(struct ath_hal *ah, HAL_STATUS *status)
73 if (ar9280RfAttach(ah, status) == AH_FALSE)
76 AH_PRIVATE(ah)->ah_getNoiseFloor = ar9285GetNoiseFloor;