drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h

   1 /*
   2  * Copyright (c) 2013 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #if !defined(BRCMF_TRACEPOINT_H_) || defined(TRACE_HEADER_MULTI_READ)
  17 #define BRCMF_TRACEPOINT_H_
  18
  19 #include <linux/types.h>
  20 #include <linux/tracepoint.h>
  21
  22 #ifndef CONFIG_BRCM_TRACING
  23
  24 #undef TRACE_EVENT
  25 #define TRACE_EVENT(name, proto, ...) \
  26 static inline void trace_ ## name(proto) {}
  27
  28 #undef DECLARE_EVENT_CLASS
  29 #define DECLARE_EVENT_CLASS(...)
  30
  31 #undef DEFINE_EVENT
  32 #define DEFINE_EVENT(evt_class, name, proto, ...) \
  33 static inline void trace_ ## name(proto) {}
  34
  35 #endif /* CONFIG_BRCM_TRACING */
  36
  37 #undef TRACE_SYSTEM
  38 #define TRACE_SYSTEM    brcmfmac
  39
  40 #define MAX_MSG_LEN             100
  41
  42 TRACE_EVENT(brcmf_err,
  43         TP_PROTO(const char *func, struct va_format *vaf),
  44         TP_ARGS(func, vaf),
  45         TP_STRUCT__entry(
  46                 __string(func, func)
  47                 __dynamic_array(char, msg, MAX_MSG_LEN)
  48         ),
  49         TP_fast_assign(
  50                 __assign_str(func, func);
  51                 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
  52                                        MAX_MSG_LEN, vaf->fmt,
  53                                        *vaf->va) >= MAX_MSG_LEN);
  54         ),
  55         TP_printk("%s: %s", __get_str(func), __get_str(msg))
  56 );
  57
  58 TRACE_EVENT(brcmf_dbg,
  59         TP_PROTO(u32 level, const char *func, struct va_format *vaf),
  60         TP_ARGS(level, func, vaf),
  61         TP_STRUCT__entry(
  62                 __field(u32, level)
  63                 __string(func, func)
  64                 __dynamic_array(char, msg, MAX_MSG_LEN)
  65         ),
  66         TP_fast_assign(
  67                 __entry->level = level;
  68                 __assign_str(func, func);
  69                 WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
  70                                        MAX_MSG_LEN, vaf->fmt,
  71                                        *vaf->va) >= MAX_MSG_LEN);
  72         ),
  73         TP_printk("%s: %s", __get_str(func), __get_str(msg))
  74 );
  75
  76 #ifdef CONFIG_BRCM_TRACING
  77
  78 #undef TRACE_INCLUDE_PATH
  79 #define TRACE_INCLUDE_PATH .
  80 #undef TRACE_INCLUDE_FILE
  81 #define TRACE_INCLUDE_FILE tracepoint
  82
  83 #include <trace/define_trace.h>
  84
  85 #endif /* CONFIG_BRCM_TRACING */
  86
  87 #endif /* BRCMF_TRACEPOINT_H_ */