LXR linux/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, ...) \
  26static 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, ...) \
  33static 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
  42TRACE_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
  58TRACE_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
  76TRACE_EVENT(brcmf_hexdump,
  77        TP_PROTO(void *data, size_t len),
  78        TP_ARGS(data, len),
  79        TP_STRUCT__entry(
  80                __field(unsigned long, len)
  81                __dynamic_array(u8, hdata, len)
  82        ),
  83        TP_fast_assign(
  84                __entry->len = len;
  85                memcpy(__get_dynamic_array(hdata), data, len);
  86        ),
  87        TP_printk("hexdump [length=%lu]", __entry->len)
  88);
  89
  90TRACE_EVENT(brcmf_bdchdr,
  91        TP_PROTO(void *data),
  92        TP_ARGS(data),
  93        TP_STRUCT__entry(
  94                __field(u8, flags)
  95                __field(u8, prio)
  96                __field(u8, flags2)
  97                __field(u32, siglen)
  98                __dynamic_array(u8, signal, *((u8 *)data + 3) * 4)
  99        ),
 100        TP_fast_assign(
 101                __entry->flags = *(u8 *)data;
 102                __entry->prio = *((u8 *)data + 1);
 103                __entry->flags2 = *((u8 *)data + 2);
 104                __entry->siglen = *((u8 *)data + 3) * 4;
 105                memcpy(__get_dynamic_array(signal),
 106                       (u8 *)data + 4, __entry->siglen);
 107        ),
 108        TP_printk("bdc: prio=%d siglen=%d", __entry->prio, __entry->siglen)
 109);
 110
 111#ifdef CONFIG_BRCM_TRACING
 112
 113#undef TRACE_INCLUDE_PATH
 114#define TRACE_INCLUDE_PATH .
 115#undef TRACE_INCLUDE_FILE
 116#define TRACE_INCLUDE_FILE tracepoint
 117
 118#include <trace/define_trace.h>
 119
 120#endif /* CONFIG_BRCM_TRACING */
 121
 122#endif /* BRCMF_TRACEPOINT_H_ */
 123