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78 lines
2.6 KiB
78 lines
2.6 KiB
/* |
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* Copyright (c) 2012 Neratec Solutions AG |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#ifndef DFS_PRI_DETECTOR_H |
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#define DFS_PRI_DETECTOR_H |
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#include <linux/list.h> |
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extern struct ath_dfs_pool_stats global_dfs_pool_stats; |
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/** |
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* struct pri_sequence - sequence of pulses matching one PRI |
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* @head: list_head |
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* @pri: pulse repetition interval (PRI) in usecs |
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* @dur: duration of sequence in usecs |
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* @count: number of pulses in this sequence |
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* @count_falses: number of not matching pulses in this sequence |
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* @first_ts: time stamp of first pulse in usecs |
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* @last_ts: time stamp of last pulse in usecs |
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* @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur) |
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*/ |
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struct pri_sequence { |
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struct list_head head; |
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u32 pri; |
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u32 dur; |
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u32 count; |
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u32 count_falses; |
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u64 first_ts; |
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u64 last_ts; |
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u64 deadline_ts; |
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}; |
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/** |
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* struct pri_detector - PRI detector element for a dedicated radar type |
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* @exit(): destructor |
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* @add_pulse(): add pulse event, returns pri_sequence if pattern was detected |
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* @reset(): clear states and reset to given time stamp |
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* @rs: detector specs for this detector element |
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* @last_ts: last pulse time stamp considered for this element in usecs |
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* @sequences: list_head holding potential pulse sequences |
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* @pulses: list connecting pulse_elem objects |
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* @count: number of pulses in queue |
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* @max_count: maximum number of pulses to be queued |
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* @window_size: window size back from newest pulse time stamp in usecs |
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*/ |
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struct pri_detector { |
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void (*exit) (struct pri_detector *de); |
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struct pri_sequence * |
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(*add_pulse)(struct pri_detector *de, struct pulse_event *e); |
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void (*reset) (struct pri_detector *de, u64 ts); |
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const struct radar_detector_specs *rs; |
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/* private: internal use only */ |
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u64 last_ts; |
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struct list_head sequences; |
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struct list_head pulses; |
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u32 count; |
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u32 max_count; |
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u32 window_size; |
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}; |
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struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs); |
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#endif /* DFS_PRI_DETECTOR_H */
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