From 4ab84aff2bb8178cccde588e339208332863fadf Mon Sep 17 00:00:00 2001
From: Vignesh U <uvignesh@codeaurora.org>
Date: Wed, 30 Oct 2019 18:09:34 +0530
Subject: [PATCH] qca-wifi: radartool synthetic pulse

Introduce a phyerror sample analogous to the phyerrors given by FW and
store itin the text file. Read the text file and Inject this phyerror to
the DFS algorithm.

Change-Id: Iff33b6554911e4f3e8101cb81df5c500cd96f041
CRs-Fixed: 2484584
---
 .../filtering/dfs_synthetic_pulse_detection.c | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 umac/dfs/core/src/filtering/dfs_synthetic_pulse_detection.c

diff --git a/umac/dfs/core/src/filtering/dfs_synthetic_pulse_detection.c b/umac/dfs/core/src/filtering/dfs_synthetic_pulse_detection.c
new file mode 100644
index 0000000000..c430e471df
--- /dev/null
+++ b/umac/dfs/core/src/filtering/dfs_synthetic_pulse_detection.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2019 The Linux Foundation. All rights reserved.
+ *
+ * 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.
+ */
+
+/**
+ * DOC: This file has support to inject synthetic radar pulses and
+ * enabling/disabling it.
+ */
+
+#include "dfs.h"
+#include "dfs_partial_offload_radar.h"
+
+#if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(WLAN_DFS_SYNTHETIC_RADAR)
+void dfs_allow_hw_pulses(struct wlan_dfs *dfs, bool allow_hw_pulses)
+{
+	dfs->dfs_allow_hw_pulses = allow_hw_pulses;
+}
+
+bool dfs_is_hw_pulses_allowed(struct wlan_dfs *dfs)
+{
+	return dfs->dfs_allow_hw_pulses;
+}
+
+QDF_STATUS
+dfs_inject_synthetic_pulse_sequence(struct wlan_dfs *dfs, unsigned char *buf)
+{
+	unsigned short j;
+	struct synthetic_seq *cur_seq;
+	struct synthetic_pulse *cur_pulse;
+	unsigned char *pulse_ptr;
+
+	if (!dfs) {
+		dfs_debug(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL");
+		return QDF_STATUS_E_NULL_VALUE;
+	}
+
+	if (dfs->dfs_allow_hw_pulses) {
+		dfs_debug(dfs,
+			  WLAN_DEBUG_DFS_ALWAYS,
+			  "Hardware pulses are enabled");
+		return QDF_STATUS_E_NOSUPPORT;
+	}
+
+	if (!buf) {
+		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "Seq is NULL");
+		return QDF_STATUS_E_NULL_VALUE;
+	}
+
+	dfs_false_radarfound_reset_vars(dfs);
+	cur_seq = (struct synthetic_seq *)buf;
+	cur_pulse = (struct synthetic_pulse *)(buf +
+		     sizeof(cur_seq->num_pulses) +
+		     sizeof(cur_seq->total_len_seq));
+	pulse_ptr = (unsigned char *)cur_pulse;
+
+	for (j = 0; j < cur_seq->num_pulses; j++) {
+		unsigned char *fft;
+
+		cur_pulse  =
+			(struct synthetic_pulse *)pulse_ptr;
+		/* fft to point to the beggining of the
+		 * FFT buffer
+		 */
+		fft = (unsigned char *)(&cur_pulse->total_len_pulse + 1);
+		dfs_process_phyerr(dfs,
+				   fft,
+				   cur_pulse->fft_datalen,
+				   cur_pulse->r_rssi,
+				   cur_pulse->r_ext_rssi,
+				   cur_pulse->r_rs_tstamp,
+				   cur_pulse->r_fulltsf);
+		pulse_ptr += cur_pulse->total_len_pulse;
+	}
+
+	return QDF_STATUS_SUCCESS;
+}
+#endif
+