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