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 */
 36enum 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
 43struct fft_sample_tlv {
 44	u8 type;	/* see ath_fft_sample */
 45	__be16 length;
 46	/* type dependent data follows */
 47} __packed;
 48
 49struct fft_sample_ht20 {
 50	struct fft_sample_tlv tlv;
 51
 52	u8 max_exp;
 53
 54	__be16 freq;
 55	s8 rssi;
 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
 67struct fft_sample_ht20_40 {
 68	struct fft_sample_tlv tlv;
 69
 70	u8 channel_type;
 71	__be16 freq;
 72
 73	s8 lower_rssi;
 74	s8 upper_rssi;
 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
 95struct 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 rssi;
107	u8 relpwr_db;
108	u8 avgpwr_db;
109	u8 max_exp;
110
111	u8 data[];
112} __packed;
113
114struct 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 rssi;
123	__be32 tsf;
124	__be32 noise;
125
126	u8 data[];
127} __packed;
128
129#endif /* SPECTRAL_COMMON_H */