1/*
 2 * Copyright (C) 2016 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
 3 *
 4 * Permission to use, copy, modify, and/or distribute this software for any
 5 * purpose with or without fee is hereby granted, provided that the above
 6 * copyright notice and this permission notice appear in all copies.
 7 *
 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#ifndef __MT76x2_DFS_H
18#define __MT76x2_DFS_H
19
20#include <linux/types.h>
21#include <linux/nl80211.h>
22
23#define MT_DFS_GP_INTERVAL		(10 << 4) /* 64 us unit */
24#define MT_DFS_NUM_ENGINES		4
25
26/* bbp params */
27#define MT_DFS_SYM_ROUND		0
28#define MT_DFS_DELTA_DELAY		2
29#define MT_DFS_VGA_MASK			0
30#define MT_DFS_PWR_GAIN_OFFSET		3
31#define MT_DFS_PWR_DOWN_TIME		0xf
32#define MT_DFS_RX_PE_MASK		0xff
33#define MT_DFS_PKT_END_MASK		0
34#define MT_DFS_CH_EN			0xf
35
36struct mt76x2_radar_specs {
37	u8 mode;
38	u16 avg_len;
39	u16 e_low;
40	u16 e_high;
41	u16 w_low;
42	u16 w_high;
43	u16 w_margin;
44	u32 t_low;
45	u32 t_high;
46	u16 t_margin;
47	u32 b_low;
48	u32 b_high;
49	u32 event_expiration;
50	u16 pwr_jmp;
51};
52
53struct mt76x2_dfs_hw_pulse {
54	u8 engine;
55	u32 period;
56	u32 w1;
57	u32 w2;
58	u32 burst;
59};
60
61struct mt76x2_dfs_engine_stats {
62	u32 hw_pattern;
63	u32 hw_pulse_discarded;
64};
65
66struct mt76x2_dfs_pattern_detector {
67	enum nl80211_dfs_regions region;
68
69	u8 chirp_pulse_cnt;
70	u32 chirp_pulse_ts;
71
72	struct mt76x2_dfs_engine_stats stats[MT_DFS_NUM_ENGINES];
73	struct tasklet_struct dfs_tasklet;
74};
75
76void mt76x2_dfs_init_params(struct mt76x2_dev *dev);
77void mt76x2_dfs_init_detector(struct mt76x2_dev *dev);
78void mt76x2_dfs_adjust_agc(struct mt76x2_dev *dev);
79void mt76x2_dfs_set_domain(struct mt76x2_dev *dev,
80			   enum nl80211_dfs_regions region);
81
82#endif /* __MT76x2_DFS_H */