1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
5 * All rights reserved.
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 *    without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 *    redistribution must be conditioned upon including a substantially
16 *    similar Disclaimer requirement for further binary redistribution.
17 *
18 * NO WARRANTY
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
30 *
31 * $FreeBSD: releng/12.0/sys/dev/ath/if_ath_lna_div.h 326255 2017-11-27 14:52:40Z pfg $
32 */
33#ifndef	__IF_ATH_LNA_DIV_H__
34#define	__IF_ATH_LNA_DIV_H__
35
36#define	ATH_ANT_RX_CURRENT_SHIFT		4
37#define	ATH_ANT_RX_MAIN_SHIFT			2
38#define	ATH_ANT_RX_MASK				0x3
39
40#define	ATH_ANT_DIV_COMB_SHORT_SCAN_INTR	50
41#define	ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT	0x100
42#define	ATH_ANT_DIV_COMB_MAX_PKTCOUNT		0x200
43#define	ATH_ANT_DIV_COMB_INIT_COUNT		95
44#define	ATH_ANT_DIV_COMB_MAX_COUNT		100
45#define	ATH_ANT_DIV_COMB_ALT_ANT_RATIO		30
46#define	ATH_ANT_DIV_COMB_ALT_ANT_RATIO2		20
47
48#define	ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA	-1
49#define	ATH_ANT_DIV_COMB_LNA1_DELTA_HI		-4
50#define	ATH_ANT_DIV_COMB_LNA1_DELTA_MID		-2
51#define	ATH_ANT_DIV_COMB_LNA1_DELTA_LOW		2
52
53struct if_ath_ant_comb_state {
54	uint16_t count;
55	uint16_t total_pkt_count;
56	HAL_BOOL scan;
57	HAL_BOOL scan_not_start;
58	int main_total_rssi;
59	int alt_total_rssi;
60	int alt_recv_cnt;
61	int main_recv_cnt;
62	int rssi_lna1;
63	int rssi_lna2;
64	int rssi_add;
65	int rssi_sub;
66	int rssi_first;
67	int rssi_second;
68	int rssi_third;
69	HAL_BOOL alt_good;
70	int quick_scan_cnt;
71	int main_conf;
72	HAL_ANT_DIV_COMB_LNA_CONF first_quick_scan_conf;
73	HAL_ANT_DIV_COMB_LNA_CONF second_quick_scan_conf;
74	int first_bias;
75	int second_bias;
76	HAL_BOOL first_ratio;
77	HAL_BOOL second_ratio;
78	unsigned long scan_start_time;
79	int lna1_lna2_delta;
80};
81
82extern	int ath_lna_div_attach(struct ath_softc *sc);
83extern	int ath_lna_div_detach(struct ath_softc *sc);
84extern	int ath_lna_div_ioctl(struct ath_softc *sc, struct ath_diag *ad);
85extern	int ath_lna_div_enable(struct ath_softc *sc,
86	    const struct ieee80211_channel *ch);
87
88extern	void ath_lna_rx_comb_scan(struct ath_softc *sc,
89	    struct ath_rx_status *rs, unsigned long _ticks, int _hz);
90
91#endif	/* __IF_ATH_LNA_DIV_H__ */
92