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