Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wireless / ath / dfs_pri_detector.h

diff --git a/kernel/drivers/net/wireless/ath/dfs_pri_detector.h b/kernel/drivers/net/wireless/ath/dfs_pri_detector.h
new file mode 100644 (file)
index 0000000..79f0fff
--- /dev/null
+++ b/kernel/drivers/net/wireless/ath/dfs_pri_detector.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2012 Neratec Solutions AG
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DFS_PRI_DETECTOR_H
+#define DFS_PRI_DETECTOR_H
+
+#include <linux/list.h>
+
+extern struct ath_dfs_pool_stats global_dfs_pool_stats;
+
+/**
+ * struct pri_sequence - sequence of pulses matching one PRI
+ * @head: list_head
+ * @pri: pulse repetition interval (PRI) in usecs
+ * @dur: duration of sequence in usecs
+ * @count: number of pulses in this sequence
+ * @count_falses: number of not matching pulses in this sequence
+ * @first_ts: time stamp of first pulse in usecs
+ * @last_ts: time stamp of last pulse in usecs
+ * @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur)
+ */
+struct pri_sequence {
+       struct list_head head;
+       u32 pri;
+       u32 dur;
+       u32 count;
+       u32 count_falses;
+       u64 first_ts;
+       u64 last_ts;
+       u64 deadline_ts;
+};
+
+/**
+ * struct pri_detector - PRI detector element for a dedicated radar type
+ * @exit(): destructor
+ * @add_pulse(): add pulse event, returns pri_sequence if pattern was detected
+ * @reset(): clear states and reset to given time stamp
+ * @rs: detector specs for this detector element
+ * @last_ts: last pulse time stamp considered for this element in usecs
+ * @sequences: list_head holding potential pulse sequences
+ * @pulses: list connecting pulse_elem objects
+ * @count: number of pulses in queue
+ * @max_count: maximum number of pulses to be queued
+ * @window_size: window size back from newest pulse time stamp in usecs
+ */
+struct pri_detector {
+       void (*exit)     (struct pri_detector *de);
+       struct pri_sequence *
+            (*add_pulse)(struct pri_detector *de, struct pulse_event *e);
+       void (*reset)    (struct pri_detector *de, u64 ts);
+
+/* private: internal use only */
+       const struct radar_detector_specs *rs;
+       u64 last_ts;
+       struct list_head sequences;
+       struct list_head pulses;
+       u32 count;
+       u32 max_count;
+       u32 window_size;
+};
+
+struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs);
+
+#endif /* DFS_PRI_DETECTOR_H */