2 * Copyright (c) 2008-2010 Atheros Communications Inc.
3 * Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
28 #ifndef __AR9285_DIVERSITY_H__
29 #define __AR9285_DIVERSITY_H__
31 /* Antenna diversity/combining */
32 #define ATH_ANT_RX_CURRENT_SHIFT 4
33 #define ATH_ANT_RX_MAIN_SHIFT 2
34 #define ATH_ANT_RX_MASK 0x3
36 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
37 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
38 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
39 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
40 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
41 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
42 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
44 #define ATH_ANT_DIV_COMB_LNA1_LNA2_DELTA -3
45 #define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
46 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
47 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
48 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
50 extern void ar9285_ant_comb_scan(struct ath_hal *ah, struct ath_rx_status *rs,
51 unsigned long ticks, int hz);