From 7bcac49e55efb4c471cfbe34e857230bff536ffd Mon Sep 17 00:00:00 2001
From: Ashish Kumar Dhanotiya <adhanoti@codeaurora.org>
Date: Wed, 14 Nov 2018 16:43:14 +0530
Subject: [PATCH] qcacmn:  Add driver command to dump function call mapping

Add driver command support to dump all the function call mapping
which is cached in global buffer.

Change-Id: I6df9273c641e2cf3ecefe64c8f3c15d8ec2f9b20
CRs-Fixed: 2677981
---
 qdf/linux/src/qdf_func_tracker.c | 46 ++++++++++++++++++++++
 qdf/linux/src/qdf_func_tracker.h | 67 ++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+)
 create mode 100644 qdf/linux/src/qdf_func_tracker.c
 create mode 100644 qdf/linux/src/qdf_func_tracker.h

diff --git a/qdf/linux/src/qdf_func_tracker.c b/qdf/linux/src/qdf_func_tracker.c
new file mode 100644
index 000000000000..43fa3b44ee52
--- /dev/null
+++ b/qdf/linux/src/qdf_func_tracker.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+
+#include <linux/string.h>
+#include <qdf_func_tracker.h>
+#include <qdf_mem.h>
+
+#ifdef FUNC_CALL_MAP
+char qdf_func_call_map_buf[QDF_FUNCTION_CALL_MAP_BUF_LEN] = {0};
+
+void cc_func(unsigned int track)
+{
+	unsigned int index = 0;
+	unsigned int bit = 0;
+
+	index = track / 8;
+	bit = track % 8;
+	qdf_func_call_map_buf[index] |= (char)(1 << bit);
+}
+
+void qdf_get_func_call_map(char *data)
+{
+	qdf_mem_copy(data, qdf_func_call_map_buf,
+		     QDF_FUNCTION_CALL_MAP_BUF_LEN);
+}
+
+void qdf_clear_func_call_map(void)
+{
+	qdf_mem_zero(qdf_func_call_map_buf, QDF_FUNCTION_CALL_MAP_BUF_LEN);
+}
+#endif
diff --git a/qdf/linux/src/qdf_func_tracker.h b/qdf/linux/src/qdf_func_tracker.h
new file mode 100644
index 000000000000..5f4fb25dedd7
--- /dev/null
+++ b/qdf/linux/src/qdf_func_tracker.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+
+#ifndef QDF_FUNC_TRACKER_H
+#define QDF_FUNC_TRACKER_H
+
+#ifdef FUNC_CALL_MAP
+
+#define QDF_FUNCTION_CALL_MAP_BUF_LEN 4096
+
+/**
+ * cc_func() - Inserts the function Id into the global
+ * function map
+ * @track: Function Id which needs to be inserted into the
+ * Global function map.
+ *
+ * Return: None
+ */
+void cc_func(unsigned int track);
+
+/**
+ * qdf_get_func_call_map() - Copies the global function call
+ * map into the given buffer
+ * @data: Buffer in which the function call map needs to be
+ * copied
+ *
+ * Return: None
+ */
+void qdf_get_func_call_map(char *data);
+
+/**
+ * qdf_clear_func_call_map() - Clears the global function
+ * call map
+ *
+ * Return: None
+ */
+void qdf_clear_func_call_map(void);
+#else
+static inline void cc_func(unsigned int track)
+{
+}
+
+static inline void qdf_get_func_call_map(char *data)
+{
+}
+
+static inline void qdf_clear_func_call_map(void)
+{
+}
+
+#endif
+#endif