| Sven Eckelmann | 95752b7 | 2014-08-02 09:12:53 +0300 | [diff] [blame^] | 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 | /* FFT sample format given to userspace via debugfs. |
| 24 | * |
| 25 | * Please keep the type/length at the front position and change |
| 26 | * other fields after adding another sample type |
| 27 | * |
| 28 | * TODO: this might need rework when switching to nl80211-based |
| 29 | * interface. |
| 30 | */ |
| 31 | enum ath_fft_sample_type { |
| 32 | ATH_FFT_SAMPLE_HT20 = 1, |
| 33 | ATH_FFT_SAMPLE_HT20_40, |
| 34 | }; |
| 35 | |
| 36 | struct fft_sample_tlv { |
| 37 | u8 type; /* see ath_fft_sample */ |
| 38 | __be16 length; |
| 39 | /* type dependent data follows */ |
| 40 | } __packed; |
| 41 | |
| 42 | struct fft_sample_ht20 { |
| 43 | struct fft_sample_tlv tlv; |
| 44 | |
| 45 | u8 max_exp; |
| 46 | |
| 47 | __be16 freq; |
| 48 | s8 rssi; |
| 49 | s8 noise; |
| 50 | |
| 51 | __be16 max_magnitude; |
| 52 | u8 max_index; |
| 53 | u8 bitmap_weight; |
| 54 | |
| 55 | __be64 tsf; |
| 56 | |
| 57 | u8 data[SPECTRAL_HT20_NUM_BINS]; |
| 58 | } __packed; |
| 59 | |
| 60 | struct fft_sample_ht20_40 { |
| 61 | struct fft_sample_tlv tlv; |
| 62 | |
| 63 | u8 channel_type; |
| 64 | __be16 freq; |
| 65 | |
| 66 | s8 lower_rssi; |
| 67 | s8 upper_rssi; |
| 68 | |
| 69 | __be64 tsf; |
| 70 | |
| 71 | s8 lower_noise; |
| 72 | s8 upper_noise; |
| 73 | |
| 74 | __be16 lower_max_magnitude; |
| 75 | __be16 upper_max_magnitude; |
| 76 | |
| 77 | u8 lower_max_index; |
| 78 | u8 upper_max_index; |
| 79 | |
| 80 | u8 lower_bitmap_weight; |
| 81 | u8 upper_bitmap_weight; |
| 82 | |
| 83 | u8 max_exp; |
| 84 | |
| 85 | u8 data[SPECTRAL_HT20_40_NUM_BINS]; |
| 86 | } __packed; |
| 87 | |
| 88 | #endif /* SPECTRAL_COMMON_H */ |