xref: /freebsd/sys/dev/ath/if_ath_lna_div.h (revision ca987d4641cdcd7f27e153db17c5bf064934faf5)
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 
51 struct 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 
80 extern	int ath_lna_div_attach(struct ath_softc *sc);
81 extern	int ath_lna_div_detach(struct ath_softc *sc);
82 extern	int ath_lna_div_ioctl(struct ath_softc *sc, struct ath_diag *ad);
83 extern	int ath_lna_div_enable(struct ath_softc *sc,
84 	    const struct ieee80211_channel *ch);
85 
86 extern	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