1 | /* |
2 | * Copyright (c) 2013 Qualcomm Atheros, Inc. |
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 SPECTRAL_COMMON_H |
18 | #define SPECTRAL_COMMON_H |
19 | |
20 | #define SPECTRAL_HT20_NUM_BINS 56 |
21 | #define SPECTRAL_HT20_40_NUM_BINS 128 |
22 | |
23 | /* TODO: could possibly be 512, but no samples this large |
24 | * could be acquired so far. |
25 | */ |
26 | #define SPECTRAL_ATH10K_MAX_NUM_BINS 256 |
27 | |
28 | /* FFT sample format given to userspace via debugfs. |
29 | * |
30 | * Please keep the type/length at the front position and change |
31 | * other fields after adding another sample type |
32 | * |
33 | * TODO: this might need rework when switching to nl80211-based |
34 | * interface. |
35 | */ |
36 | enum ath_fft_sample_type { |
37 | ATH_FFT_SAMPLE_HT20 = 1, |
38 | ATH_FFT_SAMPLE_HT20_40, |
39 | ATH_FFT_SAMPLE_ATH10K, |
40 | ATH_FFT_SAMPLE_ATH11K |
41 | }; |
42 | |
43 | struct fft_sample_tlv { |
44 | u8 type; /* see ath_fft_sample */ |
45 | __be16 length; |
46 | /* type dependent data follows */ |
47 | } __packed; |
48 | |
49 | struct fft_sample_ht20 { |
50 | struct fft_sample_tlv tlv; |
51 | |
52 | u8 max_exp; |
53 | |
54 | __be16 freq; |
55 | s8 ; |
56 | s8 noise; |
57 | |
58 | __be16 max_magnitude; |
59 | u8 max_index; |
60 | u8 bitmap_weight; |
61 | |
62 | __be64 tsf; |
63 | |
64 | u8 data[SPECTRAL_HT20_NUM_BINS]; |
65 | } __packed; |
66 | |
67 | struct fft_sample_ht20_40 { |
68 | struct fft_sample_tlv tlv; |
69 | |
70 | u8 channel_type; |
71 | __be16 freq; |
72 | |
73 | s8 ; |
74 | s8 ; |
75 | |
76 | __be64 tsf; |
77 | |
78 | s8 lower_noise; |
79 | s8 upper_noise; |
80 | |
81 | __be16 lower_max_magnitude; |
82 | __be16 upper_max_magnitude; |
83 | |
84 | u8 lower_max_index; |
85 | u8 upper_max_index; |
86 | |
87 | u8 lower_bitmap_weight; |
88 | u8 upper_bitmap_weight; |
89 | |
90 | u8 max_exp; |
91 | |
92 | u8 data[SPECTRAL_HT20_40_NUM_BINS]; |
93 | } __packed; |
94 | |
95 | struct fft_sample_ath10k { |
96 | struct fft_sample_tlv tlv; |
97 | u8 chan_width_mhz; |
98 | __be16 freq1; |
99 | __be16 freq2; |
100 | __be16 noise; |
101 | __be16 max_magnitude; |
102 | __be16 total_gain_db; |
103 | __be16 base_pwr_db; |
104 | __be64 tsf; |
105 | s8 max_index; |
106 | u8 ; |
107 | u8 relpwr_db; |
108 | u8 avgpwr_db; |
109 | u8 max_exp; |
110 | |
111 | u8 data[]; |
112 | } __packed; |
113 | |
114 | struct fft_sample_ath11k { |
115 | struct fft_sample_tlv tlv; |
116 | u8 chan_width_mhz; |
117 | s8 max_index; |
118 | u8 max_exp; |
119 | __be16 freq1; |
120 | __be16 freq2; |
121 | __be16 max_magnitude; |
122 | __be16 ; |
123 | __be32 tsf; |
124 | __be32 noise; |
125 | |
126 | u8 data[]; |
127 | } __packed; |
128 | |
129 | #endif /* SPECTRAL_COMMON_H */ |
130 | |