1 /*
2 * Copyright (c) 2008-2010 Atheros Communications Inc.
3 * Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28 #include "opt_ah.h"
29 #include "ah.h"
30 #include "ah_internal.h"
31
32 #include "ah_eeprom_v4k.h"
33
34 #include "ar9002/ar9285.h"
35 #include "ar5416/ar5416reg.h"
36 #include "ar5416/ar5416phy.h"
37 #include "ar9002/ar9002phy.h"
38 //#include "ar9002/ar9287phy.h"
39
40 #include "ar9002/ar9287_cal.h"
41
42
43 void
ar9287PACal(struct ath_hal * ah,HAL_BOOL is_reset)44 ar9287PACal(struct ath_hal *ah, HAL_BOOL is_reset)
45 {
46 /* XXX not required */
47 }
48
49 /*
50 * This is like Merlin but without ADC disable
51 */
52 HAL_BOOL
ar9287InitCalHardware(struct ath_hal * ah,const struct ieee80211_channel * chan)53 ar9287InitCalHardware(struct ath_hal *ah, const struct ieee80211_channel *chan)
54 {
55 OS_REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
56
57 /* Calibrate the AGC */
58 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL,
59 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_CAL);
60
61 /* Poll for offset calibration complete */
62 if (!ath_hal_wait(ah, AR_PHY_AGC_CONTROL,
63 AR_PHY_AGC_CONTROL_CAL, 0)) {
64 HALDEBUG(ah, HAL_DEBUG_RESET,
65 "%s: offset calibration failed to complete in 1ms; "
66 "noisy environment?\n", __func__);
67 return AH_FALSE;
68 }
69
70 OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
71
72 return AH_TRUE;
73 }
74