qcacmn: Add support for wlan specific tracepoints

Add support for wlan specific tracepoints using
the existing tracepoint infrastructure exposed
by kernel.

Change-Id: I9e4d09443b97124252240cb6b9ee305acb1bf677
CRs-Fixed: 3077074

qdf/Kbuild

@@ -101,6 +101,10 @@ qdf-objs += \
 $(HOST_CMN_CONVG_LOGGING)/src/wlan_logging_sock_svc.o
 endif
 
+ifeq ($(WLAN_TRACEPOINTS),1)
+qdf-objs += linux/src/qdf_tracepoint.o
+endif
+
 ifeq ($(WLAN_DEBUGFS),1)
 qdf-objs += linux/src/qdf_debugfs.o
 endif

qdf/inc/qdf_tracepoint.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. 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: qdf_tracepoint.h
+ * This file defines HLOS agnostic functions providing external interface
+ * for triggering tracepoints.
+ */
+#if  !defined(_QDF_TRACEPOINT_H)
+#define _QDF_TRACEPOINT_H
+
+#endif /* _QDF_TRACEPOINT_H */

qdf/linux/src/i_qdf_tracepoint.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. 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: i_qdf_tracepoint.h
+ * This file provides internal interface for triggering tracepoints
+ */
+#if  !defined(_I_QDF_TRACEPOINT_H)
+#define _I_QDF_TRACEPOINT_H
+
+#include <qdf_tracepoint_defs.h>
+
+#endif /* _I_QDF_TRACEPOINT_H */

qdf/linux/src/qdf_tracepoint.c

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. 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 <qdf_tracepoint.h>
+
+#define CREATE_TRACE_POINTS
+#include "qdf_tracepoint_defs.h"

qdf/linux/src/qdf_tracepoint_defs.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. 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: qdf_tracepoint_defs.h
+ * This file provides OS abstraction for function tracing.
+ */
+
+#if  !defined(_QDF_TRACEPOINT_DEFS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _QDF_TRACEPOINT_DEFS_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM wlan
+
+#ifndef WLAN_TRACEPOINTS
+#undef TRACE_EVENT
+#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
+	static inline void trace_##name(proto) {}              \
+	static inline bool trace_##name##_enabled(void)        \
+	{                                                      \
+		return false;                                  \
+	}
+
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)
+
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, args)      \
+	static inline void trace_##name(proto) {}       \
+	static inline bool trace_##name##_enabled(void) \
+	{                                               \
+		return false;                           \
+	}
+#endif /* WLAN_TRACEPOINTS */
+#endif /* _QDF_TRACEPOINT_DEFS_H */
+
+/* Below should be outside the protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE qdf_tracepoint_defs
+#include <trace/define_trace.h>